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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"
4a1ab8e4 32#include "bgp_memory.h"
718e3744 33
04b6bdc0
DW		 34#define BGP_MAX_HOSTNAME 64 /* Linux max, is larger than most other sys */
35
5c81b96a 36/* Default interval for IPv6 RAs when triggered by BGP unnumbered neighbor. */
37#define BGP_UNNUM_DEFAULT_RA_INTERVAL 10
38
3f9c7369
DS		 39struct update_subgroup;
40struct bpacket;
41
0299c004
DS		 42/*
43 * Allow the neighbor XXXX remote-as to take internal or external
44 * AS_SPECIFIED is zero to auto-inherit original non-feature/enhancement behavior
45 * in the system.
46 */
47enum {
48 AS_UNSPECIFIED = 0,
49 AS_SPECIFIED,
50 AS_INTERNAL,
51 AS_EXTERNAL,
52};
53
718e3744 54/* Typedef BGP specific types. */
0b2aa3a0
PJ		 55typedef u_int32_t as_t;
56typedef u_int16_t as16_t; /* we may still encounter 16 Bit asnums */
718e3744 57typedef u_int16_t bgp_size_t;
58
3f9c7369
DS		 59#define max(a,b) \
60 ({ __typeof__ (a) _a = (a); \
61 __typeof__ (b) _b = (b); \
62 _a > _b ? _a : _b; })
63
64enum bgp_af_index
65{
66 BGP_AF_START,
67 BGP_AF_IPV4_UNICAST = BGP_AF_START,
68 BGP_AF_IPV4_MULTICAST,
69 BGP_AF_IPV4_VPN,
70 BGP_AF_IPV6_UNICAST,
71 BGP_AF_IPV6_MULTICAST,
6407da5a 72 BGP_AF_IPV6_VPN,
587ff0fd
LB		 73 BGP_AF_IPV4_ENCAP,
74 BGP_AF_IPV6_ENCAP,
3f9c7369
DS		 75 BGP_AF_MAX
76};
77
78#define AF_FOREACH(af) \
79 for ((af) = BGP_AF_START; (af) < BGP_AF_MAX; (af)++)
80
81#define FOREACH_AFI_SAFI(afi, safi) \
82 for (afi = AFI_IP; afi < AFI_MAX; afi++) \
83 for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++)
84
718e3744 85/* BGP master for system wide configurations and variables. */
86struct bgp_master
87{
88 /* BGP instance list. */
89 struct list *bgp;
90
87d4a781
DS		 91 /* BGP thread master. */
92 struct thread_master *master;
93
200df115 94 /* work queues */
95 struct work_queue *process_main_queue;
200df115 96
0df7c91f
PJ		 97 /* Listening sockets */
98 struct list *listen_sockets;
99
718e3744 100 /* BGP port number. */
101 u_int16_t port;
102
3a02d1f7
PJ		 103 /* Listener address */
104 char *address;
105
718e3744 106 /* BGP start time. */
107 time_t start_time;
108
109 /* Various BGP global configuration. */
110 u_char options;
111#define BGP_OPT_NO_FIB (1 << 0)
112#define BGP_OPT_MULTIPLE_INSTANCE (1 << 1)
113#define BGP_OPT_CONFIG_CISCO (1 << 2)
cccbc015 114#define BGP_OPT_NO_LISTEN (1 << 3)
3f9c7369 115
f43e655e
RW		 116 uint64_t updgrp_idspace;
117 uint64_t subgrp_idspace;
5fe9f963 118
119 /* timer to dampen route map changes */
120 struct thread *t_rmap_update; /* Handle route map updates */
121 u_int32_t rmap_update_timer; /* Route map update timer */
122#define RMAP_DEFAULT_UPDATE_TIMER 5 /* disabled by default */
718e3744 123};
124
73ac8160
DS		 125/* BGP route-map structure. */
126struct bgp_rmap
127{
128 char *name;
129 struct route_map *map;
130};
131
7c8ff89e
DS		 132struct bgp_redist
133{
134 u_short instance;
135
136 /* BGP redistribute metric configuration. */
137 u_char redist_metric_flag;
138 u_int32_t redist_metric;
139
140 /* BGP redistribute route-map. */
141 struct bgp_rmap rmap;
142};
143
ad4cbda1 144/*
145 * Type of 'struct bgp'.
146 * - Default: The default instance
147 * - VRF: A specific (non-default) VRF
148 * - View: An instance used for route exchange
149 * The "default" instance is treated separately to simplify the code. Note
150 * that if deployed in a Multi-VRF environment, it may not exist.
151 */
152enum bgp_instance_type
153{
154 BGP_INSTANCE_TYPE_DEFAULT,
155 BGP_INSTANCE_TYPE_VRF,
156 BGP_INSTANCE_TYPE_VIEW
157};
158
718e3744 159/* BGP instance structure. */
160struct bgp
161{
162 /* AS number of this BGP instance. */
163 as_t as;
164
165 /* Name of this BGP instance. */
166 char *name;
6aeb9e78 167
ad4cbda1 168 /* Type of instance and VRF id. */
169 enum bgp_instance_type inst_type;
6aeb9e78 170 vrf_id_t vrf_id;
200df115 171
0088b5dc
SH		 172 /* Reference count to allow peer_delete to finish after bgp_delete */
173 int lock;
174
718e3744 175 /* Self peer. */
176 struct peer *peer_self;
177
178 /* BGP peer. */
179 struct list *peer;
dd793e4a 180 struct hash *peerhash;
718e3744 181
182 /* BGP peer group. */
183 struct list *group;
184
f14e6fdb
DS		 185 /* The maximum number of BGP dynamic neighbors that can be created */
186 int dynamic_neighbors_limit;
187
188 /* The current number of BGP dynamic neighbors */
189 int dynamic_neighbors_count;
190
3f9c7369
DS		 191 struct hash *update_groups[BGP_AF_MAX];
192
193 /*
194 * Global statistics for update groups.
195 */
196 struct {
197 u_int32_t join_events;
198 u_int32_t prune_events;
199 u_int32_t merge_events;
200 u_int32_t split_events;
201 u_int32_t updgrp_switch_events;
202 u_int32_t peer_refreshes_combined;
203 u_int32_t adj_count;
204 u_int32_t merge_checks_triggered;
205
206 u_int32_t updgrps_created;
207 u_int32_t updgrps_deleted;
208 u_int32_t subgrps_created;
209 u_int32_t subgrps_deleted;
210 } update_group_stats;
211
718e3744 212 /* BGP configuration. */
213 u_int16_t config;
c2d58d6d 214#define BGP_CONFIG_CLUSTER_ID (1 << 0)
215#define BGP_CONFIG_CONFEDERATION (1 << 1)
718e3744 216
217 /* BGP router identifier. */
218 struct in_addr router_id;
18a6dce6 219 struct in_addr router_id_static;
6aeb9e78 220 struct in_addr router_id_zebra;
718e3744 221
222 /* BGP route reflector cluster ID. */
223 struct in_addr cluster_id;
224
225 /* BGP confederation information. */
226 as_t confed_id;
227 as_t *confed_peers;
228 int confed_peers_cnt;
229
abc920f8
DS		 230 struct thread *t_startup; /* start-up timer on only once at the beginning */
231
232 u_int32_t v_maxmed_onstartup; /* Duration of max-med on start-up */
233#define BGP_MAXMED_ONSTARTUP_UNCONFIGURED 0 /* 0 means off, its the default */
234 u_int32_t maxmed_onstartup_value; /* Max-med value when active on start-up */
235 struct thread *t_maxmed_onstartup; /* non-null when max-med onstartup is on */
236 u_char maxmed_onstartup_over; /* Flag to make it effective only once */
237
238 u_char v_maxmed_admin; /* 1/0 if max-med administrative is on/off */
239#define BGP_MAXMED_ADMIN_UNCONFIGURED 0 /* Off by default */
240 u_int32_t maxmed_admin_value; /* Max-med value when administrative in on */
241#define BGP_MAXMED_VALUE_DEFAULT 4294967294 /* Maximum by default */
242
243 u_char maxmed_active; /* 1/0 if max-med is active or not */
244 u_int32_t maxmed_value; /* Max-med value when its active */
fe7d2a48 245
f188f2c4
DS		 246 /* BGP update delay on startup */
247 struct thread *t_update_delay;
248 struct thread *t_establish_wait;
249 u_char update_delay_over;
4a16ae86
DS		 250 u_char main_zebra_update_hold;
251 u_char main_peers_update_hold;
f188f2c4
DS		 252 u_int16_t v_update_delay;
253 u_int16_t v_establish_wait;
254 char update_delay_begin_time[64];
255 char update_delay_end_time[64];
4a16ae86
DS		 256 char update_delay_zebra_resume_time[64];
257 char update_delay_peers_resume_time[64];
f188f2c4
DS		 258 u_int32_t established;
259 u_int32_t restarted_peers;
260 u_int32_t implicit_eors;
261 u_int32_t explicit_eors;
262#define BGP_UPDATE_DELAY_DEF 0
263#define BGP_UPDATE_DELAY_MIN 0
264#define BGP_UPDATE_DELAY_MAX 3600
265
718e3744 266 /* BGP flags. */
8bd9d948 267 u_int32_t flags;
718e3744 268#define BGP_FLAG_ALWAYS_COMPARE_MED (1 << 0)
269#define BGP_FLAG_DETERMINISTIC_MED (1 << 1)
270#define BGP_FLAG_MED_MISSING_AS_WORST (1 << 2)
271#define BGP_FLAG_MED_CONFED (1 << 3)
272#define BGP_FLAG_NO_DEFAULT_IPV4 (1 << 4)
273#define BGP_FLAG_NO_CLIENT_TO_CLIENT (1 << 5)
274#define BGP_FLAG_ENFORCE_FIRST_AS (1 << 6)
275#define BGP_FLAG_COMPARE_ROUTER_ID (1 << 7)
276#define BGP_FLAG_ASPATH_IGNORE (1 << 8)
277#define BGP_FLAG_IMPORT_CHECK (1 << 9)
278#define BGP_FLAG_NO_FAST_EXT_FAILOVER (1 << 10)
848973c7 279#define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1 << 11)
538621f2 280#define BGP_FLAG_GRACEFUL_RESTART (1 << 12)
6811845b 281#define BGP_FLAG_ASPATH_CONFED (1 << 13)
2fdd455c 282#define BGP_FLAG_ASPATH_MULTIPATH_RELAX (1 << 14)
8bd9d948 283#define BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY (1 << 15)
907f92c8 284#define BGP_FLAG_DISABLE_NH_CONNECTED_CHK (1 << 16)
219178b6 285#define BGP_FLAG_MULTIPATH_RELAX_AS_SET (1 << 17)
078430f6 286#define BGP_FLAG_FORCE_STATIC_PROCESS (1 << 18)
5623e905 287#define BGP_FLAG_SHOW_HOSTNAME (1 << 19)
718e3744 288
289 /* BGP Per AF flags */
290 u_int16_t af_flags[AFI_MAX][SAFI_MAX];
291#define BGP_CONFIG_DAMPENING (1 << 0)
292
6aeb9e78
DS		 293 /* Route table for next-hop lookup cache. */
294 struct bgp_table *nexthop_cache_table[AFI_MAX];
295
296 /* Route table for import-check */
297 struct bgp_table *import_check_table[AFI_MAX];
298
299 struct bgp_table *connected_table[AFI_MAX];
300
301 struct hash *address_hash;
302
718e3744 303 /* Static route configuration. */
304 struct bgp_table *route[AFI_MAX][SAFI_MAX];
305
306 /* Aggregate address configuration. */
307 struct bgp_table *aggregate[AFI_MAX][SAFI_MAX];
308
309 /* BGP routing information base. */
310 struct bgp_table *rib[AFI_MAX][SAFI_MAX];
311
73ac8160
DS		 312 /* BGP table route-map. */
313 struct bgp_rmap table_map[AFI_MAX][SAFI_MAX];
314
718e3744 315 /* BGP redistribute configuration. */
7c8ff89e 316 struct list *redist[AFI_MAX][ZEBRA_ROUTE_MAX];
718e3744 317
0de4848d
DS		 318 /* timer to re-evaluate neighbor default-originate route-maps */
319 struct thread *t_rmap_def_originate_eval;
320#define RMAP_DEFAULT_ORIGINATE_EVAL_TIMER 5
321
718e3744 322 /* BGP distance configuration. */
734b349e
MZ		 323 u_char distance_ebgp[AFI_MAX][SAFI_MAX];
324 u_char distance_ibgp[AFI_MAX][SAFI_MAX];
325 u_char distance_local[AFI_MAX][SAFI_MAX];
718e3744 326
327 /* BGP default local-preference. */
328 u_int32_t default_local_pref;
329
3f9c7369
DS		 330 /* BGP default subgroup pkt queue max */
331 u_int32_t default_subgroup_pkt_queue_max;
332
718e3744 333 /* BGP default timer. */
334 u_int32_t default_holdtime;
335 u_int32_t default_keepalive;
538621f2 336
337 /* BGP graceful restart */
93406d87 338 u_int32_t restart_time;
339 u_int32_t stalepath_time;
165b5fff
JB		 340
341 /* Maximum-paths configuration */
342 struct bgp_maxpaths_cfg {
343 u_int16_t maxpaths_ebgp;
344 u_int16_t maxpaths_ibgp;
5e242b0d
DS		 345 u_int16_t ibgp_flags;
346#define BGP_FLAG_IBGP_MULTIPATH_SAME_CLUSTERLEN (1 << 0)
165b5fff 347 } maxpaths[AFI_MAX][SAFI_MAX];
cb1faec9
DS		 348
349 u_int32_t wpkt_quanta; /* per peer packet quanta to write */
3f9c7369 350 u_int32_t coalesce_time;
adbac85e
DW		 351
352 u_int32_t addpath_tx_id;
353 int addpath_tx_used[AFI_MAX][SAFI_MAX];
65efcfce
LB		 354
355#if ENABLE_BGP_VNC
356 struct rfapi_cfg *rfapi_cfg;
357 struct rfapi *rfapi;
358#endif
718e3744 359};
360
2a3d5731 361#define BGP_ROUTE_ADV_HOLD(bgp) (bgp->main_peers_update_hold)
d889623f 362
ad4cbda1 363#define IS_BGP_INST_KNOWN_TO_ZEBRA(bgp) \
364 (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT || \
5c81a5f3 365 (bgp->inst_type == BGP_INSTANCE_TYPE_VRF && bgp->vrf_id != VRF_UNKNOWN))
ad4cbda1 366
718e3744 367/* BGP peer-group support. */
368struct peer_group
369{
370 /* Name of the peer-group. */
371 char *name;
372
373 /* Pointer to BGP. */
374 struct bgp *bgp;
375
376 /* Peer-group client list. */
377 struct list *peer;
378
f14e6fdb
DS		 379 /** Dynamic neighbor listening ranges */
380 struct list *listen_range[AFI_MAX];
381
718e3744 382 /* Peer-group config */
383 struct peer *conf;
384};
385
386/* BGP Notify message format. */
387struct bgp_notify
388{
389 u_char code;
390 u_char subcode;
391 char *data;
392 bgp_size_t length;
393};
394
395/* Next hop self address. */
396struct bgp_nexthop
397{
398 struct interface *ifp;
399 struct in_addr v4;
400#ifdef HAVE_IPV6
401 struct in6_addr v6_global;
402 struct in6_addr v6_local;
403#endif /* HAVE_IPV6 */
404};
405
a82478b9
DS		 406/* BGP addpath values */
407#define BGP_ADDPATH_RX 1
408#define BGP_ADDPATH_TX 2
409#define BGP_ADDPATH_ID_LEN 4
410
adbac85e
DW		 411#define BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE 1
412
718e3744 413/* BGP router distinguisher value. */
414#define BGP_RD_SIZE 8
415
416struct bgp_rd
417{
418 u_char val[BGP_RD_SIZE];
419};
420
2a3d5731
DW		 421#define RMAP_IN 0
422#define RMAP_OUT 1
423#define RMAP_MAX 2
fee0f4c6 424
65efcfce
LB		 425#include "filter.h"
426
718e3744 427/* BGP filter structure. */
428struct bgp_filter
429{
430 /* Distribute-list. */
431 struct
432 {
433 char *name;
434 struct access_list *alist;
435 } dlist[FILTER_MAX];
436
437 /* Prefix-list. */
438 struct
439 {
440 char *name;
441 struct prefix_list *plist;
442 } plist[FILTER_MAX];
443
444 /* Filter-list. */
445 struct
446 {
447 char *name;
448 struct as_list *aslist;
449 } aslist[FILTER_MAX];
450
451 /* Route-map. */
452 struct
453 {
454 char *name;
455 struct route_map *map;
fee0f4c6 456 } map[RMAP_MAX];
718e3744 457
458 /* Unsuppress-map. */
459 struct
460 {
461 char *name;
462 struct route_map *map;
463 } usmap;
464};
465
6d85b15b
JBD		 466/* IBGP/EBGP identifier. We also have a CONFED peer, which is to say,
467 a peer who's AS is part of our Confederation. */
468typedef enum
469{
470 BGP_PEER_IBGP = 1,
471 BGP_PEER_EBGP,
472 BGP_PEER_INTERNAL,
473 BGP_PEER_CONFED,
474} bgp_peer_sort_t;
475
d6661008
DS		 476/* BGP message header and packet size. */
477#define BGP_MARKER_SIZE 16
478#define BGP_HEADER_SIZE 19
479#define BGP_MAX_PACKET_SIZE 4096
0a91ff55 480#define BGP_MAX_PACKET_SIZE_OVERFLOW 1024
d6661008 481
3f9c7369
DS		 482/*
483 * Trigger delay for bgp_announce_route().
484 */
485#define BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS 100
486#define BGP_ANNOUNCE_ROUTE_DELAY_MS 500
487
488struct peer_af
489{
490 /* back pointer to the peer */
491 struct peer *peer;
492
493 /* which subgroup the peer_af belongs to */
494 struct update_subgroup *subgroup;
495
496 /* for being part of an update subgroup's peer list */
497 LIST_ENTRY(peer_af) subgrp_train;
498
499 /* for being part of a packet's peer list */
500 LIST_ENTRY(peer_af) pkt_train;
501
502 struct bpacket *next_pkt_to_send;
503
504 /*
505 * Trigger timer for bgp_announce_route().
506 */
507 struct thread *t_announce_route;
508
509 afi_t afi;
510 safi_t safi;
511 int afid;
512};
513
718e3744 514/* BGP neighbor structure. */
515struct peer
516{
517 /* BGP structure. */
518 struct bgp *bgp;
519
200df115 520 /* reference count, primarily to allow bgp_process'ing of route_node's
521 * to be done after a struct peer is deleted.
522 *
523 * named 'lock' for hysterical reasons within Quagga.
524 */
525 int lock;
526
718e3744 527 /* BGP peer group. */
528 struct peer_group *group;
f43e655e 529 uint64_t version[AFI_MAX][SAFI_MAX];
3f9c7369
DS		 530
531 /* BGP peer_af structures, per configured AF on this peer */
532 struct peer_af *peer_af_array[BGP_AF_MAX];
718e3744 533
534 /* Peer's remote AS number. */
0299c004
DS		 535 int as_type;
536 as_t as;
718e3744 537
538 /* Peer's local AS number. */
539 as_t local_as;
540
6d85b15b
JBD		 541 bgp_peer_sort_t sort;
542
718e3744 543 /* Peer's Change local AS number. */
544 as_t change_local_as;
545
546 /* Remote router ID. */
547 struct in_addr remote_id;
548
549 /* Local router ID. */
550 struct in_addr local_id;
551
552 /* Packet receive and send buffer. */
553 struct stream *ibuf;
554 struct stream_fifo *obuf;
555 struct stream *work;
556
8c71e481
PM		 557 /* We use a separate stream to encode MP_REACH_NLRI for efficient
558 * NLRI packing. peer->work stores all the other attributes. The
559 * actual packet is then constructed by concatenating the two.
560 */
561 struct stream *scratch;
562
1ff9a340
DS		 563 /* the doppelganger peer structure, due to dual TCP conn setup */
564 struct peer *doppelganger;
565
718e3744 566 /* Status of the peer. */
567 int status;
568 int ostatus;
569
6403814c
DS		 570 /* FSM events, stored for debug purposes.
571 * Note: uchar used for reduced memory usage.
572 */
573 unsigned char cur_event;
574 unsigned char last_event;
575 unsigned char last_major_event;
576
0b2aa3a0
PJ		 577 /* Peer index, used for dumping TABLE_DUMP_V2 format */
578 uint16_t table_dump_index;
579
718e3744 580 /* Peer information */
eb821189 581 int fd; /* File descriptor */
582 int ttl; /* TTL of TCP connection to the peer. */
baa376fc 583 int rtt; /* Estimated round-trip-time from TCP_INFO */
fa411a21 584 int gtsm_hops; /* minimum hopcount to peer */
eb821189 585 char *desc; /* Description of the peer. */
586 unsigned short port; /* Destination port for peer */
587 char *host; /* Printable address of the peer. */
588 union sockunion su; /* Sockunion address of the peer. */
a80beece 589#define BGP_PEER_SU_UNSPEC(peer) (peer->su.sa.sa_family == AF_UNSPEC)
eb821189 590 time_t uptime; /* Last Up/Down time */
591 time_t readtime; /* Last read time */
592 time_t resettime; /* Last reset time */
718e3744 593
b892f1dd 594 ifindex_t ifindex; /* ifindex of the BGP connection. */
a80beece 595 char *conf_if; /* neighbor interface config name. */
4a04e5f7 596 struct interface *ifp; /* corresponding interface */
eb821189 597 char *ifname; /* bind interface name. */
598 char *update_if;
599 union sockunion *update_source;
eb821189 600
601 union sockunion *su_local; /* Sockunion of local address. */
602 union sockunion *su_remote; /* Sockunion of remote address. */
603 int shared_network; /* Is this peer shared same network. */
604 struct bgp_nexthop nexthop; /* Nexthop */
718e3744 605
606 /* Peer address family configuration. */
607 u_char afc[AFI_MAX][SAFI_MAX];
608 u_char afc_nego[AFI_MAX][SAFI_MAX];
609 u_char afc_adv[AFI_MAX][SAFI_MAX];
610 u_char afc_recv[AFI_MAX][SAFI_MAX];
611
0a486e5f 612 /* Capability flags (reset in bgp_stop) */
6410e93a 613 u_int32_t cap;
718e3744 614#define PEER_CAP_REFRESH_ADV (1 << 0) /* refresh advertised */
615#define PEER_CAP_REFRESH_OLD_RCV (1 << 1) /* refresh old received */
616#define PEER_CAP_REFRESH_NEW_RCV (1 << 2) /* refresh rfc received */
617#define PEER_CAP_DYNAMIC_ADV (1 << 3) /* dynamic advertised */
618#define PEER_CAP_DYNAMIC_RCV (1 << 4) /* dynamic received */
538621f2 619#define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */
620#define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */
0b2aa3a0
PJ		 621#define PEER_CAP_AS4_ADV (1 << 7) /* as4 advertised */
622#define PEER_CAP_AS4_RCV (1 << 8) /* as4 received */
fe7d2a48
DS		 623#define PEER_CAP_RESTART_BIT_ADV (1 << 9) /* sent restart state */
624#define PEER_CAP_RESTART_BIT_RCV (1 << 10) /* peer restart state */
a82478b9
DS		 625#define PEER_CAP_ADDPATH_ADV (1 << 11) /* addpath advertised */
626#define PEER_CAP_ADDPATH_RCV (1 << 12) /* addpath received */
c744aa9f
DS		 627#define PEER_CAP_ENHE_ADV (1 << 13) /* Extended nexthop advertised */
628#define PEER_CAP_ENHE_RCV (1 << 14) /* Extended nexthop received */
04b6bdc0
DW		 629#define PEER_CAP_HOSTNAME_ADV (1 << 15) /* hostname advertised */
630#define PEER_CAP_HOSTNAME_RCV (1 << 16) /* hostname received */
718e3744 631
0a486e5f 632 /* Capability flags (reset in bgp_stop) */
04b6bdc0 633 u_int32_t af_cap[AFI_MAX][SAFI_MAX];
718e3744 634#define PEER_CAP_ORF_PREFIX_SM_ADV (1 << 0) /* send-mode advertised */
635#define PEER_CAP_ORF_PREFIX_RM_ADV (1 << 1) /* receive-mode advertised */
636#define PEER_CAP_ORF_PREFIX_SM_RCV (1 << 2) /* send-mode received */
637#define PEER_CAP_ORF_PREFIX_RM_RCV (1 << 3) /* receive-mode received */
638#define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1 << 4) /* send-mode received */
639#define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1 << 5) /* receive-mode received */
93406d87 640#define PEER_CAP_RESTART_AF_RCV (1 << 6) /* graceful restart afi/safi received */
641#define PEER_CAP_RESTART_AF_PRESERVE_RCV (1 << 7) /* graceful restart afi/safi F-bit received */
a82478b9
DS		 642#define PEER_CAP_ADDPATH_AF_TX_ADV (1 << 8) /* addpath tx advertised */
643#define PEER_CAP_ADDPATH_AF_TX_RCV (1 << 9) /* addpath tx received */
644#define PEER_CAP_ADDPATH_AF_RX_ADV (1 << 10) /* addpath rx advertised */
645#define PEER_CAP_ADDPATH_AF_RX_RCV (1 << 11) /* addpath rx received */
8a92a8a0
DS		 646#define PEER_CAP_ENHE_AF_ADV (1 << 12) /* Extended nexthopi afi/safi advertised */
647#define PEER_CAP_ENHE_AF_RCV (1 << 13) /* Extended nexthop afi/safi received */
648#define PEER_CAP_ENHE_AF_NEGO (1 << 14) /* Extended nexthop afi/safi negotiated */
718e3744 649
650 /* Global configuration flags. */
651 u_int32_t flags;
652#define PEER_FLAG_PASSIVE (1 << 0) /* passive mode */
653#define PEER_FLAG_SHUTDOWN (1 << 1) /* shutdown */
654#define PEER_FLAG_DONT_CAPABILITY (1 << 2) /* dont-capability */
655#define PEER_FLAG_OVERRIDE_CAPABILITY (1 << 3) /* override-capability */
656#define PEER_FLAG_STRICT_CAP_MATCH (1 << 4) /* strict-match */
c9502438 657#define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 5) /* dynamic capability */
6ffd2079 658#define PEER_FLAG_DISABLE_CONNECTED_CHECK (1 << 6) /* disable-connected-check */
c9502438 659#define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 7) /* local-as no-prepend */
9d3f9705 660#define PEER_FLAG_LOCAL_AS_REPLACE_AS (1 << 8) /* local-as no-prepend replace-as */
1ff9a340
DS		 661#define PEER_FLAG_DELETE (1 << 9) /* mark the peer for deleting */
662#define PEER_FLAG_CONFIG_NODE (1 << 10) /* the node to update configs on */
7f342629
DS		 663#define PEER_FLAG_LONESOUL (1 << 11)
664#define PEER_FLAG_DYNAMIC_NEIGHBOR (1 << 12) /* dynamic neighbor */
665#define PEER_FLAG_CAPABILITY_ENHE (1 << 13) /* Extended next-hop (rfc 5549)*/
88177fe3 666#define PEER_FLAG_IFPEER_V6ONLY (1 << 14) /* if-based peer is v6 only */
65efcfce
LB		 667#if ENABLE_BGP_VNC
668#define PEER_FLAG_IS_RFAPI_HD (1 << 15) /* attached to rfapi HD */
669#endif
718e3744 670
93406d87 671 /* NSF mode (graceful restart) */
672 u_char nsf[AFI_MAX][SAFI_MAX];
673
718e3744 674 /* Per AF configuration flags. */
675 u_int32_t af_flags[AFI_MAX][SAFI_MAX];
676#define PEER_FLAG_SEND_COMMUNITY (1 << 0) /* send-community */
677#define PEER_FLAG_SEND_EXT_COMMUNITY (1 << 1) /* send-community ext. */
678#define PEER_FLAG_NEXTHOP_SELF (1 << 2) /* next-hop-self */
679#define PEER_FLAG_REFLECTOR_CLIENT (1 << 3) /* reflector-client */
680#define PEER_FLAG_RSERVER_CLIENT (1 << 4) /* route-server-client */
681#define PEER_FLAG_SOFT_RECONFIG (1 << 5) /* soft-reconfiguration */
682#define PEER_FLAG_AS_PATH_UNCHANGED (1 << 6) /* transparent-as */
683#define PEER_FLAG_NEXTHOP_UNCHANGED (1 << 7) /* transparent-next-hop */
684#define PEER_FLAG_MED_UNCHANGED (1 << 8) /* transparent-next-hop */
685#define PEER_FLAG_DEFAULT_ORIGINATE (1 << 9) /* default-originate */
686#define PEER_FLAG_REMOVE_PRIVATE_AS (1 << 10) /* remove-private-as */
687#define PEER_FLAG_ALLOWAS_IN (1 << 11) /* set allowas-in */
688#define PEER_FLAG_ORF_PREFIX_SM (1 << 12) /* orf capability send-mode */
689#define PEER_FLAG_ORF_PREFIX_RM (1 << 13) /* orf capability receive-mode */
690#define PEER_FLAG_MAX_PREFIX (1 << 14) /* maximum prefix */
691#define PEER_FLAG_MAX_PREFIX_WARNING (1 << 15) /* maximum prefix warning-only */
0df7c91f 692#define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1 << 16) /* leave link-local nexthop unchanged */
a538debe 693#define PEER_FLAG_FORCE_NEXTHOP_SELF (1 << 17) /* next-hop-self force */
5000f21c
DS		 694#define PEER_FLAG_REMOVE_PRIVATE_AS_ALL (1 << 18) /* remove-private-as all */
695#define PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE (1 << 19) /* remove-private-as replace-as */
c7122e14 696#define PEER_FLAG_AS_OVERRIDE (1 << 20) /* as-override */
88b8ed8d 697#define PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE (1 << 21) /* remove-private-as all replace-as */
adbac85e 698#define PEER_FLAG_ADDPATH_TX_ALL_PATHS (1 << 22) /* addpath-tx-all-paths */
06370dac 699#define PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS (1 << 23) /* addpath-tx-bestpath-per-AS */
d93f7ffc 700#define PEER_FLAG_WEIGHT (1 << 24) /* weight */
aac9ef6c 701#define PEER_FLAG_ALLOWAS_IN_ORIGIN (1 << 25) /* allowas-in origin */
0df7c91f
PJ		 702
703 /* MD5 password */
704 char *password;
718e3744 705
706 /* default-originate route-map. */
707 struct
708 {
709 char *name;
710 struct route_map *map;
711 } default_rmap[AFI_MAX][SAFI_MAX];
712
713 /* Peer status flags. */
714 u_int16_t sflags;
715#define PEER_STATUS_ACCEPT_PEER (1 << 0) /* accept peer */
716#define PEER_STATUS_PREFIX_OVERFLOW (1 << 1) /* prefix-overflow */
717#define PEER_STATUS_CAPABILITY_OPEN (1 << 2) /* capability open send */
718#define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */
719#define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */
93406d87 720#define PEER_STATUS_NSF_MODE (1 << 5) /* NSF aware peer */
721#define PEER_STATUS_NSF_WAIT (1 << 6) /* wait comeback peer */
718e3744 722
0a486e5f 723 /* Peer status af flags (reset in bgp_stop) */
718e3744 724 u_int16_t af_sflags[AFI_MAX][SAFI_MAX];
725#define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */
726#define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */
840fced9
DS		 727#define PEER_STATUS_PREFIX_THRESHOLD (1 << 2) /* exceed prefix-threshold */
728#define PEER_STATUS_PREFIX_LIMIT (1 << 3) /* exceed prefix-limit */
729#define PEER_STATUS_EOR_SEND (1 << 4) /* end-of-rib send to peer */
730#define PEER_STATUS_EOR_RECEIVED (1 << 5) /* end-of-rib received from peer */
e0701b79 731
718e3744 732 /* Default attribute value for the peer. */
733 u_int32_t config;
d93f7ffc
DW		 734#define PEER_CONFIG_TIMER (1 << 0) /* keepalive & holdtime */
735#define PEER_CONFIG_CONNECT (1 << 1) /* connect */
736#define PEER_CONFIG_ROUTEADV (1 << 2) /* route advertise */
8ffedcea 737
718e3744 738 u_int32_t holdtime;
739 u_int32_t keepalive;
740 u_int32_t connect;
741 u_int32_t routeadv;
742
743 /* Timer values. */
744 u_int32_t v_start;
745 u_int32_t v_connect;
746 u_int32_t v_holdtime;
747 u_int32_t v_keepalive;
718e3744 748 u_int32_t v_routeadv;
0a486e5f 749 u_int32_t v_pmax_restart;
93406d87 750 u_int32_t v_gr_restart;
718e3744 751
752 /* Threads. */
753 struct thread *t_read;
754 struct thread *t_write;
755 struct thread *t_start;
756 struct thread *t_connect;
757 struct thread *t_holdtime;
758 struct thread *t_keepalive;
718e3744 759 struct thread *t_routeadv;
0a486e5f 760 struct thread *t_pmax_restart;
93406d87 761 struct thread *t_gr_restart;
762 struct thread *t_gr_stale;
64e580a7
PJ		 763
764 /* workqueues */
765 struct work_queue *clear_node_queue;
766
718e3744 767 /* Statistics field */
768 u_int32_t open_in; /* Open message input count */
769 u_int32_t open_out; /* Open message output count */
770 u_int32_t update_in; /* Update message input count */
771 u_int32_t update_out; /* Update message ouput count */
772 time_t update_time; /* Update message received time. */
773 u_int32_t keepalive_in; /* Keepalive input count */
774 u_int32_t keepalive_out; /* Keepalive output count */
775 u_int32_t notify_in; /* Notify input count */
776 u_int32_t notify_out; /* Notify output count */
777 u_int32_t refresh_in; /* Route Refresh input count */
778 u_int32_t refresh_out; /* Route Refresh output count */
779 u_int32_t dynamic_cap_in; /* Dynamic Capability input count. */
780 u_int32_t dynamic_cap_out; /* Dynamic Capability output count. */
781
782 /* BGP state count */
783 u_int32_t established; /* Established */
784 u_int32_t dropped; /* Dropped */
785
f188f2c4
DS		 786 /* Update delay related fields */
787 u_char update_delay_over; /* When this is set, BGP is no more waiting for EOR */
788
718e3744 789 /* Syncronization list and time. */
790 struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX];
791 time_t synctime;
1ba2a97a
DW		 792 time_t last_write; /* timestamp when the last msg was written */
793 time_t last_update; /* timestamp when the last UPDATE msg was written */
718e3744 794
795 /* Send prefix count. */
796 unsigned long scount[AFI_MAX][SAFI_MAX];
797
798 /* Announcement attribute hash. */
799 struct hash *hash[AFI_MAX][SAFI_MAX];
800
801 /* Notify data. */
802 struct bgp_notify notify;
803
804 /* Whole packet size to be read. */
805 unsigned long packet_size;
806
807 /* Filter structure. */
808 struct bgp_filter filter[AFI_MAX][SAFI_MAX];
809
810 /* ORF Prefix-list */
811 struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX];
812
16286195
DS		 813 /* Text description of last attribute rcvd */
814 char rcvd_attr_str[BUFSIZ];
815
816 /* Track if we printed the attribute in debugs */
817 int rcvd_attr_printed;
818
718e3744 819 /* Prefix count. */
820 unsigned long pcount[AFI_MAX][SAFI_MAX];
821
822 /* Max prefix count. */
823 unsigned long pmax[AFI_MAX][SAFI_MAX];
e0701b79 824 u_char pmax_threshold[AFI_MAX][SAFI_MAX];
0a486e5f 825 u_int16_t pmax_restart[AFI_MAX][SAFI_MAX];
e0701b79 826#define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75
718e3744 827
828 /* allowas-in. */
829 char allowas_in[AFI_MAX][SAFI_MAX];
ac41b2a2 830
d93f7ffc
DW		 831 /* weight */
832 unsigned long weight[AFI_MAX][SAFI_MAX];
833
e0701b79 834 /* peer reset cause */
835 char last_reset;
836#define PEER_DOWN_RID_CHANGE 1 /* bgp router-id command */
837#define PEER_DOWN_REMOTE_AS_CHANGE 2 /* neighbor remote-as command */
838#define PEER_DOWN_LOCAL_AS_CHANGE 3 /* neighbor local-as command */
839#define PEER_DOWN_CLID_CHANGE 4 /* bgp cluster-id command */
840#define PEER_DOWN_CONFED_ID_CHANGE 5 /* bgp confederation identifier command */
841#define PEER_DOWN_CONFED_PEER_CHANGE 6 /* bgp confederation peer command */
842#define PEER_DOWN_RR_CLIENT_CHANGE 7 /* neighbor route-reflector-client command */
843#define PEER_DOWN_RS_CLIENT_CHANGE 8 /* neighbor route-server-client command */
844#define PEER_DOWN_UPDATE_SOURCE_CHANGE 9 /* neighbor update-source command */
845#define PEER_DOWN_AF_ACTIVATE 10 /* neighbor activate command */
846#define PEER_DOWN_USER_SHUTDOWN 11 /* neighbor shutdown command */
847#define PEER_DOWN_USER_RESET 12 /* clear ip bgp command */
848#define PEER_DOWN_NOTIFY_RECEIVED 13 /* notification received */
849#define PEER_DOWN_NOTIFY_SEND 14 /* notification send */
850#define PEER_DOWN_CLOSE_SESSION 15 /* tcp session close */
851#define PEER_DOWN_NEIGHBOR_DELETE 16 /* neghbor delete */
852#define PEER_DOWN_RMAP_BIND 17 /* neghbor peer-group command */
853#define PEER_DOWN_RMAP_UNBIND 18 /* no neighbor peer-group command */
854#define PEER_DOWN_CAPABILITY_CHANGE 19 /* neighbor capability command */
855#define PEER_DOWN_PASSIVE_CHANGE 20 /* neighbor passive command */
856#define PEER_DOWN_MULTIHOP_CHANGE 21 /* neighbor multihop command */
93406d87 857#define PEER_DOWN_NSF_CLOSE_SESSION 22 /* NSF tcp session close */
8ffedcea 858#define PEER_DOWN_V6ONLY_CHANGE 23 /* if-based peering v6only toggled */
7bbc6864 859#define PEER_DOWN_BFD_DOWN 24 /* BFD down */
e60480bd
DD		 860#define PEER_DOWN_IF_DOWN 25 /* Interface down */
861#define PEER_DOWN_NBR_ADDR_DEL 26 /* Peer address lost */
d6661008
DS		 862unsigned long last_reset_cause_size;
863u_char last_reset_cause[BGP_MAX_PACKET_SIZE];
e0701b79 864
ac41b2a2 865 /* The kind of route-map Flags.*/
866 u_char rmap_type;
867#define PEER_RMAP_TYPE_IN (1 << 0) /* neighbor route-map in */
868#define PEER_RMAP_TYPE_OUT (1 << 1) /* neighbor route-map out */
869#define PEER_RMAP_TYPE_NETWORK (1 << 2) /* network route-map */
870#define PEER_RMAP_TYPE_REDISTRIBUTE (1 << 3) /* redistribute route-map */
871#define PEER_RMAP_TYPE_DEFAULT (1 << 4) /* default-originate route-map */
872#define PEER_RMAP_TYPE_NOSET (1 << 5) /* not allow to set commands */
fee0f4c6 873#define PEER_RMAP_TYPE_IMPORT (1 << 6) /* neighbor route-map import */
874#define PEER_RMAP_TYPE_EXPORT (1 << 7) /* neighbor route-map export */
6410e93a 875
c43ed2e4 876 /* peer specific BFD information */
88177fe3 877 struct bfd_info *bfd_info;
04b6bdc0
DW		 878
879 /* hostname and domainname advertised by host */
880 char *hostname;
881 char *domainname;
718e3744 882};
883
ad4cbda1 884/* Check if suppress start/restart of sessions to peer. */
885#define BGP_PEER_START_SUPPRESSED(P) \
886 (CHECK_FLAG ((P)->flags, PEER_FLAG_SHUTDOWN) \
887 || CHECK_FLAG ((P)->sflags, PEER_STATUS_PREFIX_OVERFLOW))
888
0df7c91f
PJ		 889#define PEER_PASSWORD_MINLEN (1)
890#define PEER_PASSWORD_MAXLEN (80)
891
718e3744 892/* This structure's member directly points incoming packet data
893 stream. */
894struct bgp_nlri
895{
896 /* AFI. */
897 afi_t afi;
898
899 /* SAFI. */
900 safi_t safi;
901
902 /* Pointer to NLRI byte stream. */
903 u_char *nlri;
904
905 /* Length of whole NLRI. */
906 bgp_size_t length;
907};
908
909/* BGP versions. */
910#define BGP_VERSION_4 4
718e3744 911
912/* Default BGP port number. */
913#define BGP_PORT_DEFAULT 179
914
718e3744 915/* BGP minimum message size. */
916#define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10)
917#define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4)
918#define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2)
919#define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0)
920#define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4)
921#define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3)
922
923/* BGP message types. */
924#define BGP_MSG_OPEN 1
925#define BGP_MSG_UPDATE 2
926#define BGP_MSG_NOTIFY 3
927#define BGP_MSG_KEEPALIVE 4
928#define BGP_MSG_ROUTE_REFRESH_NEW 5
929#define BGP_MSG_CAPABILITY 6
930#define BGP_MSG_ROUTE_REFRESH_OLD 128
931
932/* BGP open optional parameter. */
933#define BGP_OPEN_OPT_AUTH 1
934#define BGP_OPEN_OPT_CAP 2
935
936/* BGP4 attribute type codes. */
937#define BGP_ATTR_ORIGIN 1
938#define BGP_ATTR_AS_PATH 2
939#define BGP_ATTR_NEXT_HOP 3
940#define BGP_ATTR_MULTI_EXIT_DISC 4
941#define BGP_ATTR_LOCAL_PREF 5
942#define BGP_ATTR_ATOMIC_AGGREGATE 6
943#define BGP_ATTR_AGGREGATOR 7
944#define BGP_ATTR_COMMUNITIES 8
945#define BGP_ATTR_ORIGINATOR_ID 9
946#define BGP_ATTR_CLUSTER_LIST 10
947#define BGP_ATTR_DPA 11
948#define BGP_ATTR_ADVERTISER 12
949#define BGP_ATTR_RCID_PATH 13
950#define BGP_ATTR_MP_REACH_NLRI 14
951#define BGP_ATTR_MP_UNREACH_NLRI 15
952#define BGP_ATTR_EXT_COMMUNITIES 16
0b2aa3a0
PJ		 953#define BGP_ATTR_AS4_PATH 17
954#define BGP_ATTR_AS4_AGGREGATOR 18
41367172 955#define BGP_ATTR_AS_PATHLIMIT 21
f4c89855 956#define BGP_ATTR_ENCAP 23
65efcfce
LB		 957#if ENABLE_BGP_VNC
958#define BGP_ATTR_VNC 255
959#endif
718e3744 960
961/* BGP update origin. */
962#define BGP_ORIGIN_IGP 0
963#define BGP_ORIGIN_EGP 1
964#define BGP_ORIGIN_INCOMPLETE 2
965
966/* BGP notify message codes. */
967#define BGP_NOTIFY_HEADER_ERR 1
968#define BGP_NOTIFY_OPEN_ERR 2
969#define BGP_NOTIFY_UPDATE_ERR 3
970#define BGP_NOTIFY_HOLD_ERR 4
971#define BGP_NOTIFY_FSM_ERR 5
972#define BGP_NOTIFY_CEASE 6
973#define BGP_NOTIFY_CAPABILITY_ERR 7
974#define BGP_NOTIFY_MAX 8
975
4b4e07d2
DT		 976#define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0
977
718e3744 978/* BGP_NOTIFY_HEADER_ERR sub codes. */
979#define BGP_NOTIFY_HEADER_NOT_SYNC 1
980#define BGP_NOTIFY_HEADER_BAD_MESLEN 2
981#define BGP_NOTIFY_HEADER_BAD_MESTYPE 3
982#define BGP_NOTIFY_HEADER_MAX 4
983
984/* BGP_NOTIFY_OPEN_ERR sub codes. */
14051b36 985#define BGP_NOTIFY_OPEN_MALFORMED_ATTR 0
718e3744 986#define BGP_NOTIFY_OPEN_UNSUP_VERSION 1
987#define BGP_NOTIFY_OPEN_BAD_PEER_AS 2
988#define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3
989#define BGP_NOTIFY_OPEN_UNSUP_PARAM 4
990#define BGP_NOTIFY_OPEN_AUTH_FAILURE 5
991#define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6
992#define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7
993#define BGP_NOTIFY_OPEN_MAX 8
994
995/* BGP_NOTIFY_UPDATE_ERR sub codes. */
996#define BGP_NOTIFY_UPDATE_MAL_ATTR 1
997#define BGP_NOTIFY_UPDATE_UNREC_ATTR 2
998#define BGP_NOTIFY_UPDATE_MISS_ATTR 3
999#define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4
1000#define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5
1001#define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6
1002#define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7
1003#define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8
1004#define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9
1005#define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10
1006#define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11
1007#define BGP_NOTIFY_UPDATE_MAX 12
1008
4b4e07d2 1009/* BGP_NOTIFY_CEASE sub codes (RFC 4486). */
718e3744 1010#define BGP_NOTIFY_CEASE_MAX_PREFIX 1
1011#define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2
1012#define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3
1013#define BGP_NOTIFY_CEASE_ADMIN_RESET 4
1014#define BGP_NOTIFY_CEASE_CONNECT_REJECT 5
1015#define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6
545acafb 1016#define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7
1017#define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8
1018#define BGP_NOTIFY_CEASE_MAX 9
718e3744 1019
1020/* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */
1021#define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1
1022#define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2
1023#define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3
1024#define BGP_NOTIFY_CAPABILITY_MAX 4
1025
1026/* BGP finite state machine status. */
1027#define Idle 1
1028#define Connect 2
1029#define Active 3
1030#define OpenSent 4
1031#define OpenConfirm 5
1032#define Established 6
ca058a30
PJ		 1033#define Clearing 7
1034#define Deleted 8
1035#define BGP_STATUS_MAX 9
718e3744 1036
1037/* BGP finite state machine events. */
1038#define BGP_Start 1
1039#define BGP_Stop 2
1040#define TCP_connection_open 3
1041#define TCP_connection_closed 4
1042#define TCP_connection_open_failed 5
1043#define TCP_fatal_error 6
1044#define ConnectRetry_timer_expired 7
1045#define Hold_Timer_expired 8
1046#define KeepAlive_timer_expired 9
1047#define Receive_OPEN_message 10
1048#define Receive_KEEPALIVE_message 11
1049#define Receive_UPDATE_message 12
1050#define Receive_NOTIFICATION_message 13
ca058a30
PJ		 1051#define Clearing_Completed 14
1052#define BGP_EVENTS_MAX 15
718e3744 1053
1054/* BGP timers default value. */
5ca5f1c8 1055#define BGP_INIT_START_TIMER 1
3fd8c527
DW		 1056#define BGP_DEFAULT_HOLDTIME 9
1057#define BGP_DEFAULT_KEEPALIVE 3
12179ba3 1058#define BGP_DEFAULT_EBGP_ROUTEADV 0
1670355a 1059#define BGP_DEFAULT_IBGP_ROUTEADV 0
23a1f277 1060#define BGP_DEFAULT_CONNECT_RETRY 10
718e3744 1061
1062/* BGP default local preference. */
1063#define BGP_DEFAULT_LOCAL_PREF 100
1064
3f9c7369
DS		 1065/* BGP default subgroup packet queue max . */
1066#define BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX 40
1067
538621f2 1068/* BGP graceful restart */
1069#define BGP_DEFAULT_RESTART_TIME 120
1070#define BGP_DEFAULT_STALEPATH_TIME 360
1071
42e6d745
DO		 1072/* RFC4364 */
1073#define SAFI_MPLS_LABELED_VPN 128
65efcfce 1074#define BGP_SAFI_VPN 128
718e3744 1075
718e3744 1076/* BGP uptime string length. */
1077#define BGP_UPTIME_LEN 25
1078
1079/* Default configuration settings for bgpd. */
1080#define BGP_VTY_PORT 2605
718e3744 1081#define BGP_DEFAULT_CONFIG "bgpd.conf"
1082
1083/* Check AS path loop when we send NLRI. */
1084/* #define BGP_SEND_ASPATH_CHECK */
1085
f14e6fdb
DS		 1086/* BGP Dynamic Neighbors feature */
1087#define BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT 100
1088#define BGP_DYNAMIC_NEIGHBORS_LIMIT_MIN 1
1089#define BGP_DYNAMIC_NEIGHBORS_LIMIT_MAX 5000
1090
718e3744 1091/* Flag for peer_clear_soft(). */
1092enum bgp_clear_type
1093{
1094 BGP_CLEAR_SOFT_NONE,
1095 BGP_CLEAR_SOFT_OUT,
1096 BGP_CLEAR_SOFT_IN,
1097 BGP_CLEAR_SOFT_BOTH,
2a3d5731 1098 BGP_CLEAR_SOFT_IN_ORF_PREFIX
718e3744 1099};
1100
1101/* Macros. */
1102#define BGP_INPUT(P) ((P)->ibuf)
1103#define BGP_INPUT_PNT(P) (STREAM_PNT(BGP_INPUT(P)))
6aa136f1
VS		 1104#define BGP_IS_VALID_STATE_FOR_NOTIF(S)\
1105 (((S) == OpenSent) || ((S) == OpenConfirm) || ((S) == Established))
718e3744 1106
718e3744 1107/* BGP error codes. */
1108#define BGP_SUCCESS 0
1109#define BGP_ERR_INVALID_VALUE -1
1110#define BGP_ERR_INVALID_FLAG -2
1111#define BGP_ERR_INVALID_AS -3
1112#define BGP_ERR_INVALID_BGP -4
1113#define BGP_ERR_PEER_GROUP_MEMBER -5
1114#define BGP_ERR_MULTIPLE_INSTANCE_USED -6
c8560b44
DW		 1115#define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -7
1116#define BGP_ERR_PEER_GROUP_CANT_CHANGE -8
1117#define BGP_ERR_PEER_GROUP_MISMATCH -9
1118#define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -10
1119#define BGP_ERR_MULTIPLE_INSTANCE_NOT_SET -11
1120#define BGP_ERR_AS_MISMATCH -12
1121#define BGP_ERR_PEER_FLAG_CONFLICT -13
1122#define BGP_ERR_PEER_GROUP_SHUTDOWN -14
1123#define BGP_ERR_PEER_FILTER_CONFLICT -15
1124#define BGP_ERR_NOT_INTERNAL_PEER -16
1125#define BGP_ERR_REMOVE_PRIVATE_AS -17
1126#define BGP_ERR_AF_UNCONFIGURED -18
1127#define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -19
1128#define BGP_ERR_INSTANCE_MISMATCH -20
1129#define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -21
1130#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -22
1131#define BGP_ERR_TCPSIG_FAILED -23
1132#define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -24
1133#define BGP_ERR_NO_IBGP_WITH_TTLHACK -25
1134#define BGP_ERR_NO_INTERFACE_CONFIG -26
1135#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS -27
1136#define BGP_ERR_AS_OVERRIDE -28
1137#define BGP_ERR_INVALID_DYNAMIC_NEIGHBORS_LIMIT -29
1138#define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_EXISTS -30
1139#define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND -31
1140#define BGP_ERR_INVALID_FOR_DYNAMIC_PEER -32
1141#define BGP_ERR_MAX -33
63fa10b5 1142#define BGP_ERR_INVALID_FOR_DIRECT_PEER -34
718e3744 1143
3f9c7369
DS		 1144/*
1145 * Enumeration of different policy kinds a peer can be configured with.
1146 */
1147typedef enum
1148{
1149 BGP_POLICY_ROUTE_MAP,
1150 BGP_POLICY_FILTER_LIST,
1151 BGP_POLICY_PREFIX_LIST,
1152 BGP_POLICY_DISTRIBUTE_LIST,
1153} bgp_policy_type_e;
1154
718e3744 1155extern struct bgp_master *bm;
1156
718e3744 1157/* Prototypes. */
94f2b392 1158extern void bgp_terminate (void);
1159extern void bgp_reset (void);
65957886 1160extern time_t bgp_clock (void);
94f2b392 1161extern void bgp_zclient_reset (void);
1162extern int bgp_nexthop_set (union sockunion *, union sockunion *,
718e3744 1163 struct bgp_nexthop *, struct peer *);
94f2b392 1164extern struct bgp *bgp_get_default (void);
1165extern struct bgp *bgp_lookup (as_t, const char *);
1166extern struct bgp *bgp_lookup_by_name (const char *);
6aeb9e78 1167extern struct bgp *bgp_lookup_by_vrf_id (vrf_id_t);
94f2b392 1168extern struct peer *peer_lookup (struct bgp *, union sockunion *);
a80beece 1169extern struct peer *peer_lookup_by_conf_if (struct bgp *, const char *);
04b6bdc0 1170extern struct peer *peer_lookup_by_hostname(struct bgp *, const char *);
a80beece 1171extern void bgp_peer_conf_if_to_su_update (struct peer *);
ffd0c037 1172extern int peer_group_listen_range_del(struct peer_group *, struct prefix *);
94f2b392 1173extern struct peer_group *peer_group_lookup (struct bgp *, const char *);
1174extern struct peer_group *peer_group_get (struct bgp *, const char *);
f14e6fdb
DS		 1175extern struct peer *peer_create_bind_dynamic_neighbor (struct bgp *,
1176 union sockunion *, struct peer_group *);
1177extern struct prefix *peer_group_lookup_dynamic_neighbor_range (
1178 struct peer_group *, struct prefix *);
1179extern struct peer_group *peer_group_lookup_dynamic_neighbor (struct bgp *,
1180 struct prefix *, struct prefix **);
1181extern struct peer *peer_lookup_dynamic_neighbor (struct bgp *,
1182 union sockunion *);
1183extern void peer_drop_dynamic_neighbor (struct peer *);
28066f4b
DS		 1184
1185/*
1186 * Peers are incredibly easy to memory leak
1187 * due to the various ways that they are actually used
1188 * Provide some functionality to debug locks and unlocks
1189 */
1190extern struct peer *peer_lock_with_caller(const char *, struct peer *);
1191extern struct peer *peer_unlock_with_caller(const char *, struct peer *);
1192#define peer_unlock(A) peer_unlock_with_caller(__FUNCTION__, (A))
1193#define peer_lock(B) peer_lock_with_caller(__FUNCTION__, (B))
1194
6d85b15b 1195extern bgp_peer_sort_t peer_sort (struct peer *peer);
94f2b392 1196extern int peer_active (struct peer *);
1197extern int peer_active_nego (struct peer *);
06370dac 1198extern void bgp_recalculate_all_bestpaths (struct bgp *bgp);
a80beece 1199extern struct peer *peer_create(union sockunion *, const char *, struct bgp *,
f813b13b 1200 as_t, as_t, int, afi_t, safi_t, struct peer_group *);
94f2b392 1201extern struct peer *peer_create_accept (struct bgp *);
1ff9a340 1202extern void peer_xfer_config (struct peer *dst, struct peer *src);
856ca177
MS		 1203extern char *peer_uptime (time_t, char *, size_t, u_char, json_object *);
1204
94f2b392 1205extern int bgp_config_write (struct vty *);
1206extern void bgp_config_write_family_header (struct vty *, afi_t, safi_t, int *);
6b0655a2 1207
94f2b392 1208extern void bgp_master_init (void);
718e3744 1209
94f2b392 1210extern void bgp_init (void);
1211extern void bgp_route_map_init (void);
4c48cf63 1212extern void bgp_session_reset (struct peer *);
718e3744 1213
94f2b392 1214extern int bgp_option_set (int);
1215extern int bgp_option_unset (int);
1216extern int bgp_option_check (int);
718e3744 1217
ad4cbda1 1218extern int bgp_get (struct bgp **, as_t *, const char *, enum bgp_instance_type);
6aeb9e78
DS		 1219extern void bgp_instance_up (struct bgp *);
1220extern void bgp_instance_down (struct bgp *);
94f2b392 1221extern int bgp_delete (struct bgp *);
718e3744 1222
94f2b392 1223extern int bgp_flag_set (struct bgp *, int);
1224extern int bgp_flag_unset (struct bgp *, int);
1225extern int bgp_flag_check (struct bgp *, int);
718e3744 1226
0088b5dc
SH		 1227extern void bgp_lock (struct bgp *);
1228extern void bgp_unlock (struct bgp *);
1229
0e6cb743
DL		 1230extern void bgp_router_id_zebra_bump (vrf_id_t, const struct prefix*);
1231extern int bgp_router_id_static_set (struct bgp *, struct in_addr);
718e3744 1232
94f2b392 1233extern int bgp_cluster_id_set (struct bgp *, struct in_addr *);
1234extern int bgp_cluster_id_unset (struct bgp *);
718e3744 1235
94f2b392 1236extern int bgp_confederation_id_set (struct bgp *, as_t);
1237extern int bgp_confederation_id_unset (struct bgp *);
1238extern int bgp_confederation_peers_check (struct bgp *, as_t);
718e3744 1239
94f2b392 1240extern int bgp_confederation_peers_add (struct bgp *, as_t);
1241extern int bgp_confederation_peers_remove (struct bgp *, as_t);
718e3744 1242
4760600f 1243extern int bgp_timers_set (struct bgp *, u_int32_t keepalive, u_int32_t holdtime);
94f2b392 1244extern int bgp_timers_unset (struct bgp *);
718e3744 1245
94f2b392 1246extern int bgp_default_local_preference_set (struct bgp *, u_int32_t);
1247extern int bgp_default_local_preference_unset (struct bgp *);
718e3744 1248
3f9c7369
DS		 1249extern int bgp_default_subgroup_pkt_queue_max_set (struct bgp *bgp, u_int32_t);
1250extern int bgp_default_subgroup_pkt_queue_max_unset (struct bgp *bgp);
1251
f14e6fdb
DS		 1252extern int bgp_listen_limit_set (struct bgp *, int);
1253extern int bgp_listen_limit_unset (struct bgp *);
1254
f188f2c4
DS		 1255extern int bgp_update_delay_active (struct bgp *);
1256extern int bgp_update_delay_configured (struct bgp *);
0299c004 1257extern void peer_as_change (struct peer *, as_t, int);
a80beece 1258extern int peer_remote_as (struct bgp *, union sockunion *,const char *, as_t *,
0299c004
DS		 1259 int, afi_t, safi_t);
1260extern int peer_group_remote_as (struct bgp *, const char *, as_t *, int);
94f2b392 1261extern int peer_delete (struct peer *peer);
1262extern int peer_group_delete (struct peer_group *);
1263extern int peer_group_remote_as_delete (struct peer_group *);
f14e6fdb 1264extern int peer_group_listen_range_add(struct peer_group *, struct prefix *);
718e3744 1265
94f2b392 1266extern int peer_activate (struct peer *, afi_t, safi_t);
1267extern int peer_deactivate (struct peer *, afi_t, safi_t);
4760600f 1268extern int peer_afc_set (struct peer *, afi_t, safi_t, int);
718e3744 1269
a80beece 1270extern int peer_group_bind (struct bgp *, union sockunion *, struct peer *,
c8560b44
DW		 1271 struct peer_group *, as_t *);
1272extern int peer_group_unbind (struct bgp *, struct peer *, struct peer_group *);
718e3744 1273
94f2b392 1274extern int peer_flag_set (struct peer *, u_int32_t);
1275extern int peer_flag_unset (struct peer *, u_int32_t);
718e3744 1276
94f2b392 1277extern int peer_af_flag_set (struct peer *, afi_t, safi_t, u_int32_t);
1278extern int peer_af_flag_unset (struct peer *, afi_t, safi_t, u_int32_t);
1279extern int peer_af_flag_check (struct peer *, afi_t, safi_t, u_int32_t);
718e3744 1280
94f2b392 1281extern int peer_ebgp_multihop_set (struct peer *, int);
1282extern int peer_ebgp_multihop_unset (struct peer *);
c43ed2e4 1283extern int is_ebgp_multihop_configured (struct peer *peer);
718e3744 1284
4760600f 1285extern int peer_description_set (struct peer *, const char *);
94f2b392 1286extern int peer_description_unset (struct peer *);
718e3744 1287
94f2b392 1288extern int peer_update_source_if_set (struct peer *, const char *);
4760600f 1289extern int peer_update_source_addr_set (struct peer *, const union sockunion *);
94f2b392 1290extern int peer_update_source_unset (struct peer *);
718e3744 1291
94f2b392 1292extern int peer_default_originate_set (struct peer *, afi_t, safi_t, const char *);
1293extern int peer_default_originate_unset (struct peer *, afi_t, safi_t);
718e3744 1294
94f2b392 1295extern int peer_port_set (struct peer *, u_int16_t);
1296extern int peer_port_unset (struct peer *);
718e3744 1297
d93f7ffc
DW		 1298extern int peer_weight_set (struct peer *, afi_t, safi_t, u_int16_t);
1299extern int peer_weight_unset (struct peer *, afi_t, safi_t);
718e3744 1300
4760600f 1301extern int peer_timers_set (struct peer *, u_int32_t keepalive, u_int32_t holdtime);
94f2b392 1302extern int peer_timers_unset (struct peer *);
718e3744 1303
94f2b392 1304extern int peer_timers_connect_set (struct peer *, u_int32_t);
1305extern int peer_timers_connect_unset (struct peer *);
718e3744 1306
94f2b392 1307extern int peer_advertise_interval_set (struct peer *, u_int32_t);
1308extern int peer_advertise_interval_unset (struct peer *);
718e3744 1309
ffd0c037
DS		 1310extern void peer_interface_set (struct peer *, const char *);
1311extern void peer_interface_unset (struct peer *);
718e3744 1312
94f2b392 1313extern int peer_distribute_set (struct peer *, afi_t, safi_t, int, const char *);
1314extern int peer_distribute_unset (struct peer *, afi_t, safi_t, int);
718e3744 1315
aac9ef6c 1316extern int peer_allowas_in_set (struct peer *, afi_t, safi_t, int, int);
94f2b392 1317extern int peer_allowas_in_unset (struct peer *, afi_t, safi_t);
718e3744 1318
9d3f9705 1319extern int peer_local_as_set (struct peer *, as_t, int, int);
94f2b392 1320extern int peer_local_as_unset (struct peer *);
718e3744 1321
94f2b392 1322extern int peer_prefix_list_set (struct peer *, afi_t, safi_t, int, const char *);
1323extern int peer_prefix_list_unset (struct peer *, afi_t, safi_t, int);
718e3744 1324
94f2b392 1325extern int peer_aslist_set (struct peer *, afi_t, safi_t, int, const char *);
1326extern int peer_aslist_unset (struct peer *,afi_t, safi_t, int);
718e3744 1327
94f2b392 1328extern int peer_route_map_set (struct peer *, afi_t, safi_t, int, const char *);
1329extern int peer_route_map_unset (struct peer *, afi_t, safi_t, int);
718e3744 1330
94f2b392 1331extern int peer_unsuppress_map_set (struct peer *, afi_t, safi_t, const char *);
0df7c91f
PJ		 1332
1333extern int peer_password_set (struct peer *, const char *);
1334extern int peer_password_unset (struct peer *);
1335
94f2b392 1336extern int peer_unsuppress_map_unset (struct peer *, afi_t, safi_t);
718e3744 1337
94f2b392 1338extern int peer_maximum_prefix_set (struct peer *, afi_t, safi_t, u_int32_t, u_char, int, u_int16_t);
1339extern int peer_maximum_prefix_unset (struct peer *, afi_t, safi_t);
718e3744 1340
1ff9a340 1341extern int peer_clear (struct peer *, struct listnode **);
94f2b392 1342extern int peer_clear_soft (struct peer *, afi_t, safi_t, enum bgp_clear_type);
93406d87 1343
fa411a21
NH		 1344extern int peer_ttl_security_hops_set (struct peer *, int);
1345extern int peer_ttl_security_hops_unset (struct peer *);
1346
518f0eb1
DS		 1347extern int bgp_route_map_update_timer (struct thread *thread);
1348extern void bgp_route_map_terminate(void);
16286195
DS		 1349
1350extern int peer_cmp (struct peer *p1, struct peer *p2);
3f9c7369
DS		 1351
1352extern struct peer_af * peer_af_create (struct peer *, afi_t, safi_t);
1353extern struct peer_af * peer_af_find (struct peer *, afi_t, safi_t);
1354extern int peer_af_delete (struct peer *, afi_t, safi_t);
1355
ffd0c037
DS		 1356extern void bgp_close(void);
1357
3f9c7369
DS		 1358static inline int
1359afindex (afi_t afi, safi_t safi)
1360{
1361 switch (afi)
1362 {
1363 case AFI_IP:
1364 switch (safi)
1365 {
1366 case SAFI_UNICAST:
1367 return BGP_AF_IPV4_UNICAST;
1368 break;
1369 case SAFI_MULTICAST:
1370 return BGP_AF_IPV4_MULTICAST;
1371 break;
1372 case SAFI_MPLS_VPN:
1373 return BGP_AF_IPV4_VPN;
1374 break;
587ff0fd
LB		 1375 case SAFI_ENCAP:
1376 return BGP_AF_IPV4_ENCAP;
1377 break;
3f9c7369
DS		 1378 default:
1379 return BGP_AF_MAX;
1380 break;
1381 }
1382 break;
1383 case AFI_IP6:
1384 switch (safi)
1385 {
1386 case SAFI_UNICAST:
1387 return BGP_AF_IPV6_UNICAST;
1388 break;
1389 case SAFI_MULTICAST:
1390 return BGP_AF_IPV6_MULTICAST;
1391 break;
6407da5a 1392 case SAFI_MPLS_VPN:
1393 return BGP_AF_IPV6_VPN;
1394 break;
587ff0fd
LB		 1395 case SAFI_ENCAP:
1396 return BGP_AF_IPV6_ENCAP;
1397 break;
3f9c7369
DS		 1398 default:
1399 return BGP_AF_MAX;
1400 break;
1401 }
1402 break;
1403 default:
1404 return BGP_AF_MAX;
1405 break;
1406 }
1407}
1408
c8560b44 1409/* If the peer is not a peer-group but is bound to a peer-group return 1 */
3f9c7369
DS		 1410static inline int
1411peer_group_active (struct peer *peer)
1412{
c8560b44 1413 if (!CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP) && peer->group)
3f9c7369
DS		 1414 return 1;
1415 return 0;
1416}
1417
1418/* If peer is negotiated at least one address family return 1. */
1419static inline int
1420peer_afi_active_nego (const struct peer *peer, afi_t afi)
1421{
1422 if (peer->afc_nego[afi][SAFI_UNICAST]
1423 || peer->afc_nego[afi][SAFI_MULTICAST]
587ff0fd
LB		 1424 || peer->afc_nego[afi][SAFI_MPLS_VPN]
1425 || peer->afc_nego[afi][SAFI_ENCAP])
3f9c7369
DS		 1426 return 1;
1427 return 0;
1428}
1429
f14e6fdb
DS		 1430/* If at least one address family activated for group, return 1. */
1431static inline int
1432peer_group_af_configured (struct peer_group *group)
1433{
1434 struct peer *peer = group->conf;
1435
1436 if (peer->afc[AFI_IP][SAFI_UNICAST]
1437 || peer->afc[AFI_IP][SAFI_MULTICAST]
1438 || peer->afc[AFI_IP][SAFI_MPLS_VPN]
587ff0fd 1439 || peer->afc[AFI_IP][SAFI_ENCAP]
f14e6fdb 1440 || peer->afc[AFI_IP6][SAFI_UNICAST]
6407da5a 1441 || peer->afc[AFI_IP6][SAFI_MULTICAST]
587ff0fd
LB		 1442 || peer->afc[AFI_IP6][SAFI_MPLS_VPN]
1443 || peer->afc[AFI_IP6][SAFI_ENCAP])
f14e6fdb
DS		 1444 return 1;
1445 return 0;
1446}
1447
3f9c7369
DS		 1448static inline char *
1449timestamp_string (time_t ts)
1450{
1451#ifdef HAVE_CLOCK_MONOTONIC
1452 time_t tbuf;
1453 tbuf = time(NULL) - (bgp_clock() - ts);
1454 return ctime(&tbuf);
1455#else
1456 return ctime(&ts);
1457#endif /* HAVE_CLOCK_MONOTONIC */
1458}
1459
1460static inline int
1461peer_established (struct peer *peer)
1462{
1463 if (peer->status == Established)
1464 return 1;
1465 return 0;
1466}
1467
f14e6fdb
DS		 1468static inline int
1469peer_dynamic_neighbor (struct peer *peer)
1470{
1471 return (CHECK_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR)) ? 1 : 0;
1472}
1473
8a92a8a0
DS		 1474/*
1475 * Currently supporting RFC 5549 for AFI_IP/SAFI_UNICAST only.
1476 *
1477 * Note: When other RFC-5549 applicable SAFIs to be supported, that should
1478 * come as an argument to this routine.
1479 */
1480static inline int
1481peer_cap_enhe (struct peer *peer)
1482{
1483 return (CHECK_FLAG(peer->af_cap[AFI_IP][SAFI_UNICAST], PEER_CAP_ENHE_AF_NEGO));
1484}
1485
d1be1f08 1486/* Lookup VRF for BGP instance based on its type. */
1487static inline struct vrf *
1488bgp_vrf_lookup_by_instance_type (struct bgp *bgp)
1489{
1490 struct vrf *vrf;
1491
1492 if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)
5f3d1bdf 1493 vrf = vrf_lookup_by_id (VRF_DEFAULT);
d1be1f08 1494 else if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF)
1495 vrf = vrf_lookup_by_name (bgp->name);
1496 else
1497 vrf = NULL;
1498
1499 return vrf;
1500}
1501
1502/* Link BGP instance to VRF. */
1503static inline void
1504bgp_vrf_link (struct bgp *bgp, struct vrf *vrf)
1505{
1506 bgp->vrf_id = vrf->vrf_id;
59ecefe2 1507 if (vrf->info != (void *)bgp)
1508 {
1509 bgp_lock (bgp);
1510 vrf->info = (void *)bgp;
1511 }
d1be1f08 1512}
1513
1514/* Unlink BGP instance from VRF. */
1515static inline void
1516bgp_vrf_unlink (struct bgp *bgp, struct vrf *vrf)
1517{
59ecefe2 1518 if (vrf->info == (void *)bgp)
1519 {
1520 vrf->info = NULL;
1521 bgp_unlock (bgp);
1522 }
5c81a5f3 1523 bgp->vrf_id = VRF_UNKNOWN;
d1be1f08 1524}
1525
eb117f29 1526extern void bgp_update_redist_vrf_bitmaps (struct bgp*, vrf_id_t);
65efcfce
LB		 1527
1528/* For benefit of rfapi */
1529extern struct peer * peer_new (struct bgp *bgp);
1530
00d252cb 1531#endif /* _QUAGGA_BGPD_H */
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