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718e3744 1/* BGP message definition header.
896014f4
DL		 2 * Copyright (C) 1996, 97, 98, 99, 2000 Kunihiro Ishiguro
3 *
4 * This file is part of GNU Zebra.
5 *
6 * GNU Zebra is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2, or (at your option) any
9 * later version.
10 *
11 * GNU Zebra is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with this program; see the file COPYING; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 */
718e3744 20
00d252cb 21#ifndef _QUAGGA_BGPD_H
22#define _QUAGGA_BGPD_H
23
19df7279 24#include "qobj.h"
856ca177 25#include "lib/json.h"
6aeb9e78 26#include "vrf.h"
94c60424 27#include "vty.h"
6aeb9e78 28
718e3744 29/* For union sockunion. */
3f9c7369 30#include "queue.h"
718e3744 31#include "sockunion.h"
518f0eb1 32#include "routemap.h"
ffd0c037 33#include "linklist.h"
8efe88ea 34#include "defaults.h"
4a1ab8e4 35#include "bgp_memory.h"
14c1a7bf 36#include "bitfield.h"
718e3744 37
04b6bdc0 38#define BGP_MAX_HOSTNAME 64 /* Linux max, is larger than most other sys */
40520c36 39#define BGP_PEER_MAX_HASH_SIZE 16384
04b6bdc0 40
5c81b96a 41/* Default interval for IPv6 RAs when triggered by BGP unnumbered neighbor. */
42#define BGP_UNNUM_DEFAULT_RA_INTERVAL 10
43
3f9c7369
DS		 44struct update_subgroup;
45struct bpacket;
46
0299c004
DS		 47/*
48 * Allow the neighbor XXXX remote-as to take internal or external
d62a17ae 49 * AS_SPECIFIED is zero to auto-inherit original non-feature/enhancement
50 * behavior
0299c004
DS		 51 * in the system.
52 */
d62a17ae 53enum { AS_UNSPECIFIED = 0,
54 AS_SPECIFIED,
55 AS_INTERNAL,
56 AS_EXTERNAL,
0299c004
DS		 57};
58
718e3744 59/* Typedef BGP specific types. */
0b2aa3a0
PJ		 60typedef u_int32_t as_t;
61typedef u_int16_t as16_t; /* we may still encounter 16 Bit asnums */
718e3744 62typedef u_int16_t bgp_size_t;
63
d62a17ae 64#define max(a, b) \
65 ({ \
66 __typeof__(a) _a = (a); \
67 __typeof__(b) _b = (b); \
68 _a > _b ? _a : _b; \
69 })
70
71enum bgp_af_index {
72 BGP_AF_START,
73 BGP_AF_IPV4_UNICAST = BGP_AF_START,
74 BGP_AF_IPV4_MULTICAST,
75 BGP_AF_IPV4_VPN,
76 BGP_AF_IPV6_UNICAST,
77 BGP_AF_IPV6_MULTICAST,
78 BGP_AF_IPV6_VPN,
79 BGP_AF_IPV4_ENCAP,
80 BGP_AF_IPV6_ENCAP,
81 BGP_AF_L2VPN_EVPN,
82 BGP_AF_IPV4_LBL_UNICAST,
83 BGP_AF_IPV6_LBL_UNICAST,
84 BGP_AF_MAX
3f9c7369
DS		 85};
86
d62a17ae 87#define AF_FOREACH(af) for ((af) = BGP_AF_START; (af) < BGP_AF_MAX; (af)++)
3f9c7369 88
d62a17ae 89#define FOREACH_AFI_SAFI(afi, safi) \
90 for (afi = AFI_IP; afi < AFI_MAX; afi++) \
91 for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++)
3f9c7369 92
718e3744 93/* BGP master for system wide configurations and variables. */
d62a17ae 94struct bgp_master {
95 /* BGP instance list. */
96 struct list *bgp;
97
98 /* BGP thread master. */
99 struct thread_master *master;
718e3744 100
d62a17ae 101 /* work queues */
102 struct work_queue *process_main_queue;
87d4a781 103
d62a17ae 104 /* Listening sockets */
105 struct list *listen_sockets;
718e3744 106
d62a17ae 107 /* BGP port number. */
108 u_int16_t port;
3a02d1f7 109
d62a17ae 110 /* Listener address */
111 char *address;
718e3744 112
d62a17ae 113 /* BGP start time. */
114 time_t start_time;
115
116 /* Various BGP global configuration. */
117 u_char options;
718e3744 118#define BGP_OPT_NO_FIB (1 << 0)
119#define BGP_OPT_MULTIPLE_INSTANCE (1 << 1)
120#define BGP_OPT_CONFIG_CISCO (1 << 2)
cccbc015 121#define BGP_OPT_NO_LISTEN (1 << 3)
3f9c7369 122
d62a17ae 123 uint64_t updgrp_idspace;
124 uint64_t subgrp_idspace;
5fe9f963 125
d62a17ae 126 /* timer to dampen route map changes */
127 struct thread *t_rmap_update; /* Handle route map updates */
128 u_int32_t rmap_update_timer; /* Route map update timer */
129 /* $FRR indent$ */
130 /* clang-format off */
5fe9f963 131#define RMAP_DEFAULT_UPDATE_TIMER 5 /* disabled by default */
19df7279 132
d62a17ae 133 QOBJ_FIELDS
718e3744 134};
19df7279 135DECLARE_QOBJ_TYPE(bgp_master)
718e3744 136
73ac8160 137/* BGP route-map structure. */
d62a17ae 138struct bgp_rmap {
139 char *name;
140 struct route_map *map;
73ac8160
DS		 141};
142
d62a17ae 143struct bgp_redist {
144 u_short instance;
7c8ff89e 145
d62a17ae 146 /* BGP redistribute metric configuration. */
147 u_char redist_metric_flag;
148 u_int32_t redist_metric;
7c8ff89e 149
d62a17ae 150 /* BGP redistribute route-map. */
151 struct bgp_rmap rmap;
7c8ff89e
DS		 152};
153
ad4cbda1 154/*
155 * Type of 'struct bgp'.
156 * - Default: The default instance
157 * - VRF: A specific (non-default) VRF
158 * - View: An instance used for route exchange
159 * The "default" instance is treated separately to simplify the code. Note
160 * that if deployed in a Multi-VRF environment, it may not exist.
161 */
d62a17ae 162enum bgp_instance_type {
163 BGP_INSTANCE_TYPE_DEFAULT,
164 BGP_INSTANCE_TYPE_VRF,
165 BGP_INSTANCE_TYPE_VIEW
ad4cbda1 166};
167
718e3744 168/* BGP instance structure. */
d62a17ae 169struct bgp {
170 /* AS number of this BGP instance. */
171 as_t as;
172
173 /* Name of this BGP instance. */
174 char *name;
175
176 /* Type of instance and VRF id. */
177 enum bgp_instance_type inst_type;
178 vrf_id_t vrf_id;
179
180 /* Reference count to allow peer_delete to finish after bgp_delete */
181 int lock;
182
183 /* Self peer. */
184 struct peer *peer_self;
185
186 /* BGP peer. */
187 struct list *peer;
188 struct hash *peerhash;
189
190 /* BGP peer group. */
191 struct list *group;
192
193 /* The maximum number of BGP dynamic neighbors that can be created */
194 int dynamic_neighbors_limit;
195
196 /* The current number of BGP dynamic neighbors */
197 int dynamic_neighbors_count;
198
199 struct hash *update_groups[BGP_AF_MAX];
200
201 /*
202 * Global statistics for update groups.
203 */
204 struct {
205 u_int32_t join_events;
206 u_int32_t prune_events;
207 u_int32_t merge_events;
208 u_int32_t split_events;
209 u_int32_t updgrp_switch_events;
210 u_int32_t peer_refreshes_combined;
211 u_int32_t adj_count;
212 u_int32_t merge_checks_triggered;
213
214 u_int32_t updgrps_created;
215 u_int32_t updgrps_deleted;
216 u_int32_t subgrps_created;
217 u_int32_t subgrps_deleted;
218 } update_group_stats;
219
220 /* BGP configuration. */
221 u_int16_t config;
c2d58d6d 222#define BGP_CONFIG_CLUSTER_ID (1 << 0)
223#define BGP_CONFIG_CONFEDERATION (1 << 1)
718e3744 224
d62a17ae 225 /* BGP router identifier. */
226 struct in_addr router_id;
227 struct in_addr router_id_static;
228 struct in_addr router_id_zebra;
718e3744 229
d62a17ae 230 /* BGP route reflector cluster ID. */
231 struct in_addr cluster_id;
718e3744 232
d62a17ae 233 /* BGP confederation information. */
234 as_t confed_id;
235 as_t *confed_peers;
236 int confed_peers_cnt;
718e3744 237
d62a17ae 238 struct thread
239 *t_startup; /* start-up timer on only once at the beginning */
abc920f8 240
d62a17ae 241 u_int32_t v_maxmed_onstartup; /* Duration of max-med on start-up */
242 /* $FRR indent$ */
243 /* clang-format off */
abc920f8 244#define BGP_MAXMED_ONSTARTUP_UNCONFIGURED 0 /* 0 means off, its the default */
d62a17ae 245 u_int32_t maxmed_onstartup_value; /* Max-med value when active on
246 start-up */
247 struct thread
248 *t_maxmed_onstartup; /* non-null when max-med onstartup is on */
249 u_char maxmed_onstartup_over; /* Flag to make it effective only once */
250
251 u_char v_maxmed_admin; /* 1/0 if max-med administrative is on/off */
252 /* $FRR indent$ */
253 /* clang-format off */
abc920f8 254#define BGP_MAXMED_ADMIN_UNCONFIGURED 0 /* Off by default */
9d303b37
DL		 255 u_int32_t
256 maxmed_admin_value; /* Max-med value when administrative in on
d62a17ae 257 */
abc920f8
DS		 258#define BGP_MAXMED_VALUE_DEFAULT 4294967294 /* Maximum by default */
259
9d303b37
DL		 260 u_char maxmed_active; /* 1/0 if max-med is active or not */
261 u_int32_t maxmed_value; /* Max-med value when its active */
d62a17ae 262
263 /* BGP update delay on startup */
264 struct thread *t_update_delay;
265 struct thread *t_establish_wait;
266 u_char update_delay_over;
267 u_char main_zebra_update_hold;
268 u_char main_peers_update_hold;
269 u_int16_t v_update_delay;
270 u_int16_t v_establish_wait;
271 char update_delay_begin_time[64];
272 char update_delay_end_time[64];
273 char update_delay_zebra_resume_time[64];
274 char update_delay_peers_resume_time[64];
275 u_int32_t established;
276 u_int32_t restarted_peers;
277 u_int32_t implicit_eors;
278 u_int32_t explicit_eors;
f188f2c4
DS		 279#define BGP_UPDATE_DELAY_DEF 0
280#define BGP_UPDATE_DELAY_MIN 0
281#define BGP_UPDATE_DELAY_MAX 3600
282
d62a17ae 283 /* BGP flags. */
284 u_int32_t flags;
718e3744 285#define BGP_FLAG_ALWAYS_COMPARE_MED (1 << 0)
286#define BGP_FLAG_DETERMINISTIC_MED (1 << 1)
287#define BGP_FLAG_MED_MISSING_AS_WORST (1 << 2)
288#define BGP_FLAG_MED_CONFED (1 << 3)
289#define BGP_FLAG_NO_DEFAULT_IPV4 (1 << 4)
290#define BGP_FLAG_NO_CLIENT_TO_CLIENT (1 << 5)
291#define BGP_FLAG_ENFORCE_FIRST_AS (1 << 6)
292#define BGP_FLAG_COMPARE_ROUTER_ID (1 << 7)
293#define BGP_FLAG_ASPATH_IGNORE (1 << 8)
294#define BGP_FLAG_IMPORT_CHECK (1 << 9)
295#define BGP_FLAG_NO_FAST_EXT_FAILOVER (1 << 10)
848973c7 296#define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1 << 11)
538621f2 297#define BGP_FLAG_GRACEFUL_RESTART (1 << 12)
6811845b 298#define BGP_FLAG_ASPATH_CONFED (1 << 13)
2fdd455c 299#define BGP_FLAG_ASPATH_MULTIPATH_RELAX (1 << 14)
8bd9d948 300#define BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY (1 << 15)
907f92c8 301#define BGP_FLAG_DISABLE_NH_CONNECTED_CHK (1 << 16)
219178b6 302#define BGP_FLAG_MULTIPATH_RELAX_AS_SET (1 << 17)
078430f6 303#define BGP_FLAG_FORCE_STATIC_PROCESS (1 << 18)
5623e905 304#define BGP_FLAG_SHOW_HOSTNAME (1 << 19)
6a9a3cde 305#define BGP_FLAG_GR_PRESERVE_FWD (1 << 20)
718e3744 306
d62a17ae 307 /* BGP Per AF flags */
308 u_int16_t af_flags[AFI_MAX][SAFI_MAX];
718e3744 309#define BGP_CONFIG_DAMPENING (1 << 0)
310
d62a17ae 311 /* Route table for next-hop lookup cache. */
312 struct bgp_table *nexthop_cache_table[AFI_MAX];
6aeb9e78 313
d62a17ae 314 /* Route table for import-check */
315 struct bgp_table *import_check_table[AFI_MAX];
6aeb9e78 316
d62a17ae 317 struct bgp_table *connected_table[AFI_MAX];
6aeb9e78 318
d62a17ae 319 struct hash *address_hash;
6aeb9e78 320
d62a17ae 321 /* Static route configuration. */
322 struct bgp_table *route[AFI_MAX][SAFI_MAX];
718e3744 323
d62a17ae 324 /* Aggregate address configuration. */
325 struct bgp_table *aggregate[AFI_MAX][SAFI_MAX];
718e3744 326
d62a17ae 327 /* BGP routing information base. */
328 struct bgp_table *rib[AFI_MAX][SAFI_MAX];
718e3744 329
d62a17ae 330 /* BGP table route-map. */
331 struct bgp_rmap table_map[AFI_MAX][SAFI_MAX];
73ac8160 332
d62a17ae 333 /* BGP redistribute configuration. */
334 struct list *redist[AFI_MAX][ZEBRA_ROUTE_MAX];
718e3744 335
d62a17ae 336 /* timer to re-evaluate neighbor default-originate route-maps */
337 struct thread *t_rmap_def_originate_eval;
0de4848d
DS		 338#define RMAP_DEFAULT_ORIGINATE_EVAL_TIMER 5
339
d62a17ae 340 /* BGP distance configuration. */
341 u_char distance_ebgp[AFI_MAX][SAFI_MAX];
342 u_char distance_ibgp[AFI_MAX][SAFI_MAX];
343 u_char distance_local[AFI_MAX][SAFI_MAX];
344
345 /* BGP default local-preference. */
346 u_int32_t default_local_pref;
347
348 /* BGP default subgroup pkt queue max */
349 u_int32_t default_subgroup_pkt_queue_max;
350
351 /* BGP default timer. */
352 u_int32_t default_holdtime;
353 u_int32_t default_keepalive;
354
355 /* BGP graceful restart */
356 u_int32_t restart_time;
357 u_int32_t stalepath_time;
358
359 /* Maximum-paths configuration */
360 struct bgp_maxpaths_cfg {
361 u_int16_t maxpaths_ebgp;
362 u_int16_t maxpaths_ibgp;
363 u_int16_t ibgp_flags;
5e242b0d 364#define BGP_FLAG_IBGP_MULTIPATH_SAME_CLUSTERLEN (1 << 0)
d62a17ae 365 } maxpaths[AFI_MAX][SAFI_MAX];
cb1faec9 366
d62a17ae 367 u_int32_t wpkt_quanta; /* per peer packet quanta to write */
368 u_int32_t coalesce_time;
adbac85e 369
d62a17ae 370 u_int32_t addpath_tx_id;
371 int addpath_tx_used[AFI_MAX][SAFI_MAX];
65efcfce
LB		 372
373#if ENABLE_BGP_VNC
d62a17ae 374 struct rfapi_cfg *rfapi_cfg;
375 struct rfapi *rfapi;
65efcfce 376#endif
19df7279 377
d62a17ae 378 /* EVPN related information */
14c1a7bf 379
d62a17ae 380 /* EVI hash table */
381 struct hash *vnihash;
14c1a7bf 382
1a98c087
MK		 383 /* EVPN enable - advertise gateway macip routes */
384 int advertise_gw_macip;
385
d62a17ae 386 /* EVPN enable - advertise local VNIs and their MACs etc. */
387 int advertise_all_vni;
14c1a7bf 388
d62a17ae 389 /* Hash table of Import RTs to EVIs */
390 struct hash *import_rt_hash;
14c1a7bf 391
d62a17ae 392 /* Id space for automatic RD derivation for an EVI */
393 bitfield_t rd_idspace;
14c1a7bf 394
d62a17ae 395 QOBJ_FIELDS
718e3744 396};
19df7279 397DECLARE_QOBJ_TYPE(bgp)
718e3744 398
2a3d5731 399#define BGP_ROUTE_ADV_HOLD(bgp) (bgp->main_peers_update_hold)
d889623f 400
d62a17ae 401#define IS_BGP_INST_KNOWN_TO_ZEBRA(bgp) \
402 (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT \
403 || (bgp->inst_type == BGP_INSTANCE_TYPE_VRF \
404 && bgp->vrf_id != VRF_UNKNOWN))
ad4cbda1 405
718e3744 406/* BGP peer-group support. */
d62a17ae 407struct peer_group {
408 /* Name of the peer-group. */
409 char *name;
718e3744 410
d62a17ae 411 /* Pointer to BGP. */
412 struct bgp *bgp;
718e3744 413
d62a17ae 414 /* Peer-group client list. */
415 struct list *peer;
f14e6fdb 416
d62a17ae 417 /** Dynamic neighbor listening ranges */
418 struct list *listen_range[AFI_MAX];
419
420 /* Peer-group config */
421 struct peer *conf;
718e3744 422};
423
424/* BGP Notify message format. */
d62a17ae 425struct bgp_notify {
426 u_char code;
427 u_char subcode;
428 char *data;
429 bgp_size_t length;
430 u_char *raw_data;
718e3744 431};
432
433/* Next hop self address. */
d62a17ae 434struct bgp_nexthop {
435 struct interface *ifp;
436 struct in_addr v4;
437 struct in6_addr v6_global;
438 struct in6_addr v6_local;
718e3744 439};
440
a82478b9
DS		 441/* BGP addpath values */
442#define BGP_ADDPATH_RX 1
443#define BGP_ADDPATH_TX 2
444#define BGP_ADDPATH_ID_LEN 4
445
adbac85e
DW		 446#define BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE 1
447
718e3744 448/* BGP router distinguisher value. */
449#define BGP_RD_SIZE 8
450
d62a17ae 451struct bgp_rd {
452 u_char val[BGP_RD_SIZE];
718e3744 453};
454
2a3d5731
DW		 455#define RMAP_IN 0
456#define RMAP_OUT 1
457#define RMAP_MAX 2
fee0f4c6 458
65efcfce
LB		 459#include "filter.h"
460
718e3744 461/* BGP filter structure. */
d62a17ae 462struct bgp_filter {
463 /* Distribute-list. */
464 struct {
465 char *name;
466 struct access_list *alist;
467 } dlist[FILTER_MAX];
468
469 /* Prefix-list. */
470 struct {
471 char *name;
472 struct prefix_list *plist;
473 } plist[FILTER_MAX];
474
475 /* Filter-list. */
476 struct {
477 char *name;
478 struct as_list *aslist;
479 } aslist[FILTER_MAX];
480
481 /* Route-map. */
482 struct {
483 char *name;
484 struct route_map *map;
485 } map[RMAP_MAX];
486
487 /* Unsuppress-map. */
488 struct {
489 char *name;
490 struct route_map *map;
491 } usmap;
718e3744 492};
493
6d85b15b
JBD		 494/* IBGP/EBGP identifier. We also have a CONFED peer, which is to say,
495 a peer who's AS is part of our Confederation. */
d62a17ae 496typedef enum {
497 BGP_PEER_IBGP = 1,
498 BGP_PEER_EBGP,
499 BGP_PEER_INTERNAL,
500 BGP_PEER_CONFED,
6d85b15b
JBD		 501} bgp_peer_sort_t;
502
d6661008
DS		 503/* BGP message header and packet size. */
504#define BGP_MARKER_SIZE 16
505#define BGP_HEADER_SIZE 19
506#define BGP_MAX_PACKET_SIZE 4096
0a91ff55 507#define BGP_MAX_PACKET_SIZE_OVERFLOW 1024
d6661008 508
3f9c7369
DS		 509/*
510 * Trigger delay for bgp_announce_route().
511 */
512#define BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS 100
513#define BGP_ANNOUNCE_ROUTE_DELAY_MS 500
514
d62a17ae 515struct peer_af {
516 /* back pointer to the peer */
517 struct peer *peer;
3f9c7369 518
d62a17ae 519 /* which subgroup the peer_af belongs to */
520 struct update_subgroup *subgroup;
3f9c7369 521
d62a17ae 522 /* for being part of an update subgroup's peer list */
523 LIST_ENTRY(peer_af) subgrp_train;
3f9c7369 524
d62a17ae 525 /* for being part of a packet's peer list */
526 LIST_ENTRY(peer_af) pkt_train;
3f9c7369 527
d62a17ae 528 struct bpacket *next_pkt_to_send;
3f9c7369 529
d62a17ae 530 /*
531 * Trigger timer for bgp_announce_route().
532 */
533 struct thread *t_announce_route;
3f9c7369 534
d62a17ae 535 afi_t afi;
536 safi_t safi;
537 int afid;
3f9c7369
DS		 538};
539
718e3744 540/* BGP neighbor structure. */
d62a17ae 541struct peer {
542 /* BGP structure. */
543 struct bgp *bgp;
544
545 /* reference count, primarily to allow bgp_process'ing of route_node's
546 * to be done after a struct peer is deleted.
547 *
548 * named 'lock' for hysterical reasons within Quagga.
549 */
550 int lock;
551
552 /* BGP peer group. */
553 struct peer_group *group;
554 uint64_t version[AFI_MAX][SAFI_MAX];
555
556 /* BGP peer_af structures, per configured AF on this peer */
557 struct peer_af *peer_af_array[BGP_AF_MAX];
558
559 /* Peer's remote AS number. */
560 int as_type;
561 as_t as;
562
563 /* Peer's local AS number. */
564 as_t local_as;
565
566 bgp_peer_sort_t sort;
567
568 /* Peer's Change local AS number. */
569 as_t change_local_as;
570
571 /* Remote router ID. */
572 struct in_addr remote_id;
573
574 /* Local router ID. */
575 struct in_addr local_id;
576
577 /* Packet receive and send buffer. */
578 struct stream *ibuf;
579 struct stream_fifo *obuf;
580 struct stream *work;
581
582 /* We use a separate stream to encode MP_REACH_NLRI for efficient
583 * NLRI packing. peer->work stores all the other attributes. The
584 * actual packet is then constructed by concatenating the two.
585 */
586 struct stream *scratch;
587
588 /* the doppelganger peer structure, due to dual TCP conn setup */
589 struct peer *doppelganger;
590
591 /* Status of the peer. */
592 int status;
593 int ostatus;
594
595 /* FSM events, stored for debug purposes.
596 * Note: uchar used for reduced memory usage.
597 */
598 unsigned char cur_event;
599 unsigned char last_event;
600 unsigned char last_major_event;
601
602 /* Peer index, used for dumping TABLE_DUMP_V2 format */
603 uint16_t table_dump_index;
604
605 /* Peer information */
606 int fd; /* File descriptor */
607 int ttl; /* TTL of TCP connection to the peer. */
608 int rtt; /* Estimated round-trip-time from TCP_INFO */
609 int gtsm_hops; /* minimum hopcount to peer */
610 char *desc; /* Description of the peer. */
611 unsigned short port; /* Destination port for peer */
612 char *host; /* Printable address of the peer. */
613 union sockunion su; /* Sockunion address of the peer. */
614 /* $FRR indent$ */
615 /* clang-format off */
a80beece 616#define BGP_PEER_SU_UNSPEC(peer) (peer->su.sa.sa_family == AF_UNSPEC)
d62a17ae 617 time_t uptime; /* Last Up/Down time */
618 time_t readtime; /* Last read time */
619 time_t resettime; /* Last reset time */
620
621 ifindex_t ifindex; /* ifindex of the BGP connection. */
622 char *conf_if; /* neighbor interface config name. */
623 struct interface *ifp; /* corresponding interface */
624 char *ifname; /* bind interface name. */
625 char *update_if;
626 union sockunion *update_source;
627
628 union sockunion *su_local; /* Sockunion of local address. */
629 union sockunion *su_remote; /* Sockunion of remote address. */
630 int shared_network; /* Is this peer shared same network. */
631 struct bgp_nexthop nexthop; /* Nexthop */
632
633 /* Peer address family configuration. */
634 u_char afc[AFI_MAX][SAFI_MAX];
635 u_char afc_nego[AFI_MAX][SAFI_MAX];
636 u_char afc_adv[AFI_MAX][SAFI_MAX];
637 u_char afc_recv[AFI_MAX][SAFI_MAX];
638
639 /* Capability flags (reset in bgp_stop) */
640 u_int32_t cap;
718e3744 641#define PEER_CAP_REFRESH_ADV (1 << 0) /* refresh advertised */
642#define PEER_CAP_REFRESH_OLD_RCV (1 << 1) /* refresh old received */
643#define PEER_CAP_REFRESH_NEW_RCV (1 << 2) /* refresh rfc received */
644#define PEER_CAP_DYNAMIC_ADV (1 << 3) /* dynamic advertised */
645#define PEER_CAP_DYNAMIC_RCV (1 << 4) /* dynamic received */
538621f2 646#define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */
647#define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */
0b2aa3a0
PJ		 648#define PEER_CAP_AS4_ADV (1 << 7) /* as4 advertised */
649#define PEER_CAP_AS4_RCV (1 << 8) /* as4 received */
fe7d2a48
DS		 650#define PEER_CAP_RESTART_BIT_ADV (1 << 9) /* sent restart state */
651#define PEER_CAP_RESTART_BIT_RCV (1 << 10) /* peer restart state */
a82478b9
DS		 652#define PEER_CAP_ADDPATH_ADV (1 << 11) /* addpath advertised */
653#define PEER_CAP_ADDPATH_RCV (1 << 12) /* addpath received */
c744aa9f
DS		 654#define PEER_CAP_ENHE_ADV (1 << 13) /* Extended nexthop advertised */
655#define PEER_CAP_ENHE_RCV (1 << 14) /* Extended nexthop received */
04b6bdc0
DW		 656#define PEER_CAP_HOSTNAME_ADV (1 << 15) /* hostname advertised */
657#define PEER_CAP_HOSTNAME_RCV (1 << 16) /* hostname received */
718e3744 658
d62a17ae 659 /* Capability flags (reset in bgp_stop) */
660 u_int32_t af_cap[AFI_MAX][SAFI_MAX];
718e3744 661#define PEER_CAP_ORF_PREFIX_SM_ADV (1 << 0) /* send-mode advertised */
662#define PEER_CAP_ORF_PREFIX_RM_ADV (1 << 1) /* receive-mode advertised */
663#define PEER_CAP_ORF_PREFIX_SM_RCV (1 << 2) /* send-mode received */
664#define PEER_CAP_ORF_PREFIX_RM_RCV (1 << 3) /* receive-mode received */
665#define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1 << 4) /* send-mode received */
666#define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1 << 5) /* receive-mode received */
93406d87 667#define PEER_CAP_RESTART_AF_RCV (1 << 6) /* graceful restart afi/safi received */
668#define PEER_CAP_RESTART_AF_PRESERVE_RCV (1 << 7) /* graceful restart afi/safi F-bit received */
a82478b9
DS		 669#define PEER_CAP_ADDPATH_AF_TX_ADV (1 << 8) /* addpath tx advertised */
670#define PEER_CAP_ADDPATH_AF_TX_RCV (1 << 9) /* addpath tx received */
671#define PEER_CAP_ADDPATH_AF_RX_ADV (1 << 10) /* addpath rx advertised */
672#define PEER_CAP_ADDPATH_AF_RX_RCV (1 << 11) /* addpath rx received */
8a92a8a0
DS		 673#define PEER_CAP_ENHE_AF_ADV (1 << 12) /* Extended nexthopi afi/safi advertised */
674#define PEER_CAP_ENHE_AF_RCV (1 << 13) /* Extended nexthop afi/safi received */
675#define PEER_CAP_ENHE_AF_NEGO (1 << 14) /* Extended nexthop afi/safi negotiated */
718e3744 676
d62a17ae 677 /* Global configuration flags. */
678 u_int32_t flags;
718e3744 679#define PEER_FLAG_PASSIVE (1 << 0) /* passive mode */
680#define PEER_FLAG_SHUTDOWN (1 << 1) /* shutdown */
681#define PEER_FLAG_DONT_CAPABILITY (1 << 2) /* dont-capability */
682#define PEER_FLAG_OVERRIDE_CAPABILITY (1 << 3) /* override-capability */
683#define PEER_FLAG_STRICT_CAP_MATCH (1 << 4) /* strict-match */
c9502438 684#define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 5) /* dynamic capability */
6ffd2079 685#define PEER_FLAG_DISABLE_CONNECTED_CHECK (1 << 6) /* disable-connected-check */
c9502438 686#define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 7) /* local-as no-prepend */
9d3f9705 687#define PEER_FLAG_LOCAL_AS_REPLACE_AS (1 << 8) /* local-as no-prepend replace-as */
1ff9a340
DS		 688#define PEER_FLAG_DELETE (1 << 9) /* mark the peer for deleting */
689#define PEER_FLAG_CONFIG_NODE (1 << 10) /* the node to update configs on */
7f342629
DS		 690#define PEER_FLAG_LONESOUL (1 << 11)
691#define PEER_FLAG_DYNAMIC_NEIGHBOR (1 << 12) /* dynamic neighbor */
692#define PEER_FLAG_CAPABILITY_ENHE (1 << 13) /* Extended next-hop (rfc 5549)*/
88177fe3 693#define PEER_FLAG_IFPEER_V6ONLY (1 << 14) /* if-based peer is v6 only */
65efcfce
LB		 694#if ENABLE_BGP_VNC
695#define PEER_FLAG_IS_RFAPI_HD (1 << 15) /* attached to rfapi HD */
696#endif
d62a17ae 697 /* outgoing message sent in CEASE_ADMIN_SHUTDOWN notify */
698 char *tx_shutdown_message;
718e3744 699
d62a17ae 700 /* NSF mode (graceful restart) */
701 u_char nsf[AFI_MAX][SAFI_MAX];
93406d87 702
d62a17ae 703 /* Per AF configuration flags. */
704 u_int32_t af_flags[AFI_MAX][SAFI_MAX];
718e3744 705#define PEER_FLAG_SEND_COMMUNITY (1 << 0) /* send-community */
706#define PEER_FLAG_SEND_EXT_COMMUNITY (1 << 1) /* send-community ext. */
707#define PEER_FLAG_NEXTHOP_SELF (1 << 2) /* next-hop-self */
708#define PEER_FLAG_REFLECTOR_CLIENT (1 << 3) /* reflector-client */
709#define PEER_FLAG_RSERVER_CLIENT (1 << 4) /* route-server-client */
710#define PEER_FLAG_SOFT_RECONFIG (1 << 5) /* soft-reconfiguration */
711#define PEER_FLAG_AS_PATH_UNCHANGED (1 << 6) /* transparent-as */
712#define PEER_FLAG_NEXTHOP_UNCHANGED (1 << 7) /* transparent-next-hop */
713#define PEER_FLAG_MED_UNCHANGED (1 << 8) /* transparent-next-hop */
714#define PEER_FLAG_DEFAULT_ORIGINATE (1 << 9) /* default-originate */
715#define PEER_FLAG_REMOVE_PRIVATE_AS (1 << 10) /* remove-private-as */
716#define PEER_FLAG_ALLOWAS_IN (1 << 11) /* set allowas-in */
717#define PEER_FLAG_ORF_PREFIX_SM (1 << 12) /* orf capability send-mode */
718#define PEER_FLAG_ORF_PREFIX_RM (1 << 13) /* orf capability receive-mode */
719#define PEER_FLAG_MAX_PREFIX (1 << 14) /* maximum prefix */
720#define PEER_FLAG_MAX_PREFIX_WARNING (1 << 15) /* maximum prefix warning-only */
0df7c91f 721#define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1 << 16) /* leave link-local nexthop unchanged */
a538debe 722#define PEER_FLAG_FORCE_NEXTHOP_SELF (1 << 17) /* next-hop-self force */
5000f21c
DS		 723#define PEER_FLAG_REMOVE_PRIVATE_AS_ALL (1 << 18) /* remove-private-as all */
724#define PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE (1 << 19) /* remove-private-as replace-as */
c7122e14 725#define PEER_FLAG_AS_OVERRIDE (1 << 20) /* as-override */
88b8ed8d 726#define PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE (1 << 21) /* remove-private-as all replace-as */
adbac85e 727#define PEER_FLAG_ADDPATH_TX_ALL_PATHS (1 << 22) /* addpath-tx-all-paths */
06370dac 728#define PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS (1 << 23) /* addpath-tx-bestpath-per-AS */
d93f7ffc 729#define PEER_FLAG_WEIGHT (1 << 24) /* weight */
aac9ef6c 730#define PEER_FLAG_ALLOWAS_IN_ORIGIN (1 << 25) /* allowas-in origin */
57d187bc 731#define PEER_FLAG_SEND_LARGE_COMMUNITY (1 << 26) /* Send large Communities */
0df7c91f 732
d62a17ae 733 /* MD5 password */
734 char *password;
718e3744 735
d62a17ae 736 /* default-originate route-map. */
737 struct {
738 char *name;
739 struct route_map *map;
740 } default_rmap[AFI_MAX][SAFI_MAX];
718e3744 741
d62a17ae 742 /* Peer status flags. */
743 u_int16_t sflags;
718e3744 744#define PEER_STATUS_ACCEPT_PEER (1 << 0) /* accept peer */
745#define PEER_STATUS_PREFIX_OVERFLOW (1 << 1) /* prefix-overflow */
746#define PEER_STATUS_CAPABILITY_OPEN (1 << 2) /* capability open send */
747#define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */
748#define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */
93406d87 749#define PEER_STATUS_NSF_MODE (1 << 5) /* NSF aware peer */
750#define PEER_STATUS_NSF_WAIT (1 << 6) /* wait comeback peer */
718e3744 751
d62a17ae 752 /* Peer status af flags (reset in bgp_stop) */
753 u_int16_t af_sflags[AFI_MAX][SAFI_MAX];
718e3744 754#define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */
755#define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */
840fced9
DS		 756#define PEER_STATUS_PREFIX_THRESHOLD (1 << 2) /* exceed prefix-threshold */
757#define PEER_STATUS_PREFIX_LIMIT (1 << 3) /* exceed prefix-limit */
758#define PEER_STATUS_EOR_SEND (1 << 4) /* end-of-rib send to peer */
759#define PEER_STATUS_EOR_RECEIVED (1 << 5) /* end-of-rib received from peer */
e0701b79 760
d62a17ae 761 /* Default attribute value for the peer. */
762 u_int32_t config;
d93f7ffc
DW		 763#define PEER_CONFIG_TIMER (1 << 0) /* keepalive & holdtime */
764#define PEER_CONFIG_CONNECT (1 << 1) /* connect */
765#define PEER_CONFIG_ROUTEADV (1 << 2) /* route advertise */
8ffedcea 766
d62a17ae 767 u_int32_t holdtime;
768 u_int32_t keepalive;
769 u_int32_t connect;
770 u_int32_t routeadv;
771
772 /* Timer values. */
773 u_int32_t v_start;
774 u_int32_t v_connect;
775 u_int32_t v_holdtime;
776 u_int32_t v_keepalive;
777 u_int32_t v_routeadv;
778 u_int32_t v_pmax_restart;
779 u_int32_t v_gr_restart;
780
781 /* Threads. */
782 struct thread *t_read;
783 struct thread *t_write;
784 struct thread *t_start;
785 struct thread *t_connect;
786 struct thread *t_holdtime;
787 struct thread *t_keepalive;
788 struct thread *t_routeadv;
789 struct thread *t_pmax_restart;
790 struct thread *t_gr_restart;
791 struct thread *t_gr_stale;
792
793 /* workqueues */
794 struct work_queue *clear_node_queue;
795
796 /* Statistics field */
797 u_int32_t open_in; /* Open message input count */
798 u_int32_t open_out; /* Open message output count */
799 u_int32_t update_in; /* Update message input count */
800 u_int32_t update_out; /* Update message ouput count */
801 time_t update_time; /* Update message received time. */
802 u_int32_t keepalive_in; /* Keepalive input count */
803 u_int32_t keepalive_out; /* Keepalive output count */
804 u_int32_t notify_in; /* Notify input count */
805 u_int32_t notify_out; /* Notify output count */
806 u_int32_t refresh_in; /* Route Refresh input count */
807 u_int32_t refresh_out; /* Route Refresh output count */
808 u_int32_t dynamic_cap_in; /* Dynamic Capability input count. */
809 u_int32_t dynamic_cap_out; /* Dynamic Capability output count. */
810
811 /* BGP state count */
812 u_int32_t established; /* Established */
813 u_int32_t dropped; /* Dropped */
814
815 /* Update delay related fields */
816 u_char update_delay_over; /* When this is set, BGP is no more waiting
817 for EOR */
818
819 /* Syncronization list and time. */
820 struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX];
821 time_t synctime;
822 time_t last_write; /* timestamp when the last msg was written */
823 time_t last_update; /* timestamp when the last UPDATE msg was written */
824
825 /* Send prefix count. */
826 unsigned long scount[AFI_MAX][SAFI_MAX];
827
828 /* Announcement attribute hash. */
829 struct hash *hash[AFI_MAX][SAFI_MAX];
830
831 /* Notify data. */
832 struct bgp_notify notify;
833
834 /* Whole packet size to be read. */
835 unsigned long packet_size;
836
837 /* Filter structure. */
838 struct bgp_filter filter[AFI_MAX][SAFI_MAX];
839
840 /* ORF Prefix-list */
841 struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX];
842
843 /* Text description of last attribute rcvd */
844 char rcvd_attr_str[BUFSIZ];
845
846 /* Track if we printed the attribute in debugs */
847 int rcvd_attr_printed;
848
849 /* Prefix count. */
850 unsigned long pcount[AFI_MAX][SAFI_MAX];
851
852 /* Max prefix count. */
853 unsigned long pmax[AFI_MAX][SAFI_MAX];
854 u_char pmax_threshold[AFI_MAX][SAFI_MAX];
855 u_int16_t pmax_restart[AFI_MAX][SAFI_MAX];
e0701b79 856#define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75
718e3744 857
d62a17ae 858 /* allowas-in. */
859 char allowas_in[AFI_MAX][SAFI_MAX];
ac41b2a2 860
d62a17ae 861 /* weight */
862 unsigned long weight[AFI_MAX][SAFI_MAX];
d93f7ffc 863
d62a17ae 864 /* peer reset cause */
865 char last_reset;
e0701b79 866#define PEER_DOWN_RID_CHANGE 1 /* bgp router-id command */
867#define PEER_DOWN_REMOTE_AS_CHANGE 2 /* neighbor remote-as command */
868#define PEER_DOWN_LOCAL_AS_CHANGE 3 /* neighbor local-as command */
869#define PEER_DOWN_CLID_CHANGE 4 /* bgp cluster-id command */
870#define PEER_DOWN_CONFED_ID_CHANGE 5 /* bgp confederation identifier command */
871#define PEER_DOWN_CONFED_PEER_CHANGE 6 /* bgp confederation peer command */
872#define PEER_DOWN_RR_CLIENT_CHANGE 7 /* neighbor route-reflector-client command */
873#define PEER_DOWN_RS_CLIENT_CHANGE 8 /* neighbor route-server-client command */
874#define PEER_DOWN_UPDATE_SOURCE_CHANGE 9 /* neighbor update-source command */
875#define PEER_DOWN_AF_ACTIVATE 10 /* neighbor activate command */
876#define PEER_DOWN_USER_SHUTDOWN 11 /* neighbor shutdown command */
877#define PEER_DOWN_USER_RESET 12 /* clear ip bgp command */
878#define PEER_DOWN_NOTIFY_RECEIVED 13 /* notification received */
879#define PEER_DOWN_NOTIFY_SEND 14 /* notification send */
880#define PEER_DOWN_CLOSE_SESSION 15 /* tcp session close */
881#define PEER_DOWN_NEIGHBOR_DELETE 16 /* neghbor delete */
882#define PEER_DOWN_RMAP_BIND 17 /* neghbor peer-group command */
883#define PEER_DOWN_RMAP_UNBIND 18 /* no neighbor peer-group command */
884#define PEER_DOWN_CAPABILITY_CHANGE 19 /* neighbor capability command */
885#define PEER_DOWN_PASSIVE_CHANGE 20 /* neighbor passive command */
886#define PEER_DOWN_MULTIHOP_CHANGE 21 /* neighbor multihop command */
93406d87 887#define PEER_DOWN_NSF_CLOSE_SESSION 22 /* NSF tcp session close */
8ffedcea 888#define PEER_DOWN_V6ONLY_CHANGE 23 /* if-based peering v6only toggled */
7bbc6864 889#define PEER_DOWN_BFD_DOWN 24 /* BFD down */
e60480bd
DD		 890#define PEER_DOWN_IF_DOWN 25 /* Interface down */
891#define PEER_DOWN_NBR_ADDR_DEL 26 /* Peer address lost */
d62a17ae 892 unsigned long last_reset_cause_size;
893 u_char last_reset_cause[BGP_MAX_PACKET_SIZE];
e0701b79 894
d62a17ae 895 /* The kind of route-map Flags.*/
896 u_char rmap_type;
ac41b2a2 897#define PEER_RMAP_TYPE_IN (1 << 0) /* neighbor route-map in */
898#define PEER_RMAP_TYPE_OUT (1 << 1) /* neighbor route-map out */
899#define PEER_RMAP_TYPE_NETWORK (1 << 2) /* network route-map */
900#define PEER_RMAP_TYPE_REDISTRIBUTE (1 << 3) /* redistribute route-map */
901#define PEER_RMAP_TYPE_DEFAULT (1 << 4) /* default-originate route-map */
902#define PEER_RMAP_TYPE_NOSET (1 << 5) /* not allow to set commands */
fee0f4c6 903#define PEER_RMAP_TYPE_IMPORT (1 << 6) /* neighbor route-map import */
904#define PEER_RMAP_TYPE_EXPORT (1 << 7) /* neighbor route-map export */
6410e93a 905
d62a17ae 906 /* peer specific BFD information */
907 struct bfd_info *bfd_info;
04b6bdc0 908
d62a17ae 909 /* hostname and domainname advertised by host */
910 char *hostname;
911 char *domainname;
19df7279 912
d62a17ae 913 QOBJ_FIELDS
718e3744 914};
19df7279 915DECLARE_QOBJ_TYPE(peer)
718e3744 916
ad4cbda1 917/* Check if suppress start/restart of sessions to peer. */
d62a17ae 918#define BGP_PEER_START_SUPPRESSED(P) \
919 (CHECK_FLAG((P)->flags, PEER_FLAG_SHUTDOWN) \
920 || CHECK_FLAG((P)->sflags, PEER_STATUS_PREFIX_OVERFLOW))
ad4cbda1 921
0df7c91f
PJ		 922#define PEER_PASSWORD_MINLEN (1)
923#define PEER_PASSWORD_MAXLEN (80)
924
718e3744 925/* This structure's member directly points incoming packet data
926 stream. */
d62a17ae 927struct bgp_nlri {
928 /* AFI. */
a46a2e9b 929 uint16_t afi; /* iana_afi_t */
718e3744 930
d62a17ae 931 /* SAFI. */
a46a2e9b 932 uint8_t safi; /* iana_safi_t */
718e3744 933
d62a17ae 934 /* Pointer to NLRI byte stream. */
935 u_char *nlri;
718e3744 936
d62a17ae 937 /* Length of whole NLRI. */
938 bgp_size_t length;
718e3744 939};
940
941/* BGP versions. */
942#define BGP_VERSION_4 4
718e3744 943
944/* Default BGP port number. */
945#define BGP_PORT_DEFAULT 179
946
718e3744 947/* BGP minimum message size. */
948#define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10)
949#define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4)
950#define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2)
951#define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0)
952#define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4)
953#define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3)
954
955/* BGP message types. */
956#define BGP_MSG_OPEN 1
957#define BGP_MSG_UPDATE 2
958#define BGP_MSG_NOTIFY 3
959#define BGP_MSG_KEEPALIVE 4
960#define BGP_MSG_ROUTE_REFRESH_NEW 5
961#define BGP_MSG_CAPABILITY 6
962#define BGP_MSG_ROUTE_REFRESH_OLD 128
963
964/* BGP open optional parameter. */
965#define BGP_OPEN_OPT_AUTH 1
966#define BGP_OPEN_OPT_CAP 2
967
968/* BGP4 attribute type codes. */
969#define BGP_ATTR_ORIGIN 1
970#define BGP_ATTR_AS_PATH 2
971#define BGP_ATTR_NEXT_HOP 3
972#define BGP_ATTR_MULTI_EXIT_DISC 4
973#define BGP_ATTR_LOCAL_PREF 5
974#define BGP_ATTR_ATOMIC_AGGREGATE 6
975#define BGP_ATTR_AGGREGATOR 7
976#define BGP_ATTR_COMMUNITIES 8
977#define BGP_ATTR_ORIGINATOR_ID 9
978#define BGP_ATTR_CLUSTER_LIST 10
979#define BGP_ATTR_DPA 11
980#define BGP_ATTR_ADVERTISER 12
981#define BGP_ATTR_RCID_PATH 13
982#define BGP_ATTR_MP_REACH_NLRI 14
983#define BGP_ATTR_MP_UNREACH_NLRI 15
984#define BGP_ATTR_EXT_COMMUNITIES 16
0b2aa3a0
PJ		 985#define BGP_ATTR_AS4_PATH 17
986#define BGP_ATTR_AS4_AGGREGATOR 18
41367172 987#define BGP_ATTR_AS_PATHLIMIT 21
f4c89855 988#define BGP_ATTR_ENCAP 23
57d187bc 989#define BGP_ATTR_LARGE_COMMUNITIES 32
c5a543b4 990#define BGP_ATTR_PREFIX_SID 40
65efcfce
LB		 991#if ENABLE_BGP_VNC
992#define BGP_ATTR_VNC 255
993#endif
718e3744 994
995/* BGP update origin. */
996#define BGP_ORIGIN_IGP 0
997#define BGP_ORIGIN_EGP 1
998#define BGP_ORIGIN_INCOMPLETE 2
999
1000/* BGP notify message codes. */
1001#define BGP_NOTIFY_HEADER_ERR 1
1002#define BGP_NOTIFY_OPEN_ERR 2
1003#define BGP_NOTIFY_UPDATE_ERR 3
1004#define BGP_NOTIFY_HOLD_ERR 4
1005#define BGP_NOTIFY_FSM_ERR 5
1006#define BGP_NOTIFY_CEASE 6
1007#define BGP_NOTIFY_CAPABILITY_ERR 7
718e3744 1008
4b4e07d2
DT		 1009#define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0
1010
718e3744 1011/* BGP_NOTIFY_HEADER_ERR sub codes. */
1012#define BGP_NOTIFY_HEADER_NOT_SYNC 1
1013#define BGP_NOTIFY_HEADER_BAD_MESLEN 2
1014#define BGP_NOTIFY_HEADER_BAD_MESTYPE 3
718e3744 1015
1016/* BGP_NOTIFY_OPEN_ERR sub codes. */
14051b36 1017#define BGP_NOTIFY_OPEN_MALFORMED_ATTR 0
718e3744 1018#define BGP_NOTIFY_OPEN_UNSUP_VERSION 1
1019#define BGP_NOTIFY_OPEN_BAD_PEER_AS 2
1020#define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3
1021#define BGP_NOTIFY_OPEN_UNSUP_PARAM 4
1022#define BGP_NOTIFY_OPEN_AUTH_FAILURE 5
1023#define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6
1024#define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7
718e3744 1025
1026/* BGP_NOTIFY_UPDATE_ERR sub codes. */
1027#define BGP_NOTIFY_UPDATE_MAL_ATTR 1
1028#define BGP_NOTIFY_UPDATE_UNREC_ATTR 2
1029#define BGP_NOTIFY_UPDATE_MISS_ATTR 3
1030#define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4
1031#define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5
1032#define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6
1033#define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7
1034#define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8
1035#define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9
1036#define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10
1037#define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11
718e3744 1038
4b4e07d2 1039/* BGP_NOTIFY_CEASE sub codes (RFC 4486). */
718e3744 1040#define BGP_NOTIFY_CEASE_MAX_PREFIX 1
1041#define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2
1042#define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3
1043#define BGP_NOTIFY_CEASE_ADMIN_RESET 4
1044#define BGP_NOTIFY_CEASE_CONNECT_REJECT 5
1045#define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6
545acafb 1046#define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7
1047#define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8
718e3744 1048
1049/* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */
1050#define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1
1051#define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2
1052#define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3
718e3744 1053
1054/* BGP finite state machine status. */
1055#define Idle 1
1056#define Connect 2
1057#define Active 3
1058#define OpenSent 4
1059#define OpenConfirm 5
1060#define Established 6
ca058a30
PJ		 1061#define Clearing 7
1062#define Deleted 8
1063#define BGP_STATUS_MAX 9
718e3744 1064
1065/* BGP finite state machine events. */
1066#define BGP_Start 1
1067#define BGP_Stop 2
1068#define TCP_connection_open 3
1069#define TCP_connection_closed 4
1070#define TCP_connection_open_failed 5
1071#define TCP_fatal_error 6
1072#define ConnectRetry_timer_expired 7
1073#define Hold_Timer_expired 8
1074#define KeepAlive_timer_expired 9
1075#define Receive_OPEN_message 10
1076#define Receive_KEEPALIVE_message 11
1077#define Receive_UPDATE_message 12
1078#define Receive_NOTIFICATION_message 13
ca058a30
PJ		 1079#define Clearing_Completed 14
1080#define BGP_EVENTS_MAX 15
718e3744 1081
1082/* BGP timers default value. */
8efe88ea 1083/* note: the DFLT_ ones depend on compile-time "defaults" selection */
5ca5f1c8 1084#define BGP_INIT_START_TIMER 1
8efe88ea
DL		 1085#define BGP_DEFAULT_HOLDTIME DFLT_BGP_HOLDTIME
1086#define BGP_DEFAULT_KEEPALIVE DFLT_BGP_KEEPALIVE
12179ba3 1087#define BGP_DEFAULT_EBGP_ROUTEADV 0
1670355a 1088#define BGP_DEFAULT_IBGP_ROUTEADV 0
8efe88ea 1089#define BGP_DEFAULT_CONNECT_RETRY DFLT_BGP_TIMERS_CONNECT
718e3744 1090
1091/* BGP default local preference. */
1092#define BGP_DEFAULT_LOCAL_PREF 100
1093
3f9c7369
DS		 1094/* BGP default subgroup packet queue max . */
1095#define BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX 40
1096
538621f2 1097/* BGP graceful restart */
1098#define BGP_DEFAULT_RESTART_TIME 120
1099#define BGP_DEFAULT_STALEPATH_TIME 360
1100
718e3744 1101/* BGP uptime string length. */
1102#define BGP_UPTIME_LEN 25
1103
1104/* Default configuration settings for bgpd. */
1105#define BGP_VTY_PORT 2605
718e3744 1106#define BGP_DEFAULT_CONFIG "bgpd.conf"
1107
1108/* Check AS path loop when we send NLRI. */
1109/* #define BGP_SEND_ASPATH_CHECK */
1110
f14e6fdb
DS		 1111/* BGP Dynamic Neighbors feature */
1112#define BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT 100
1113#define BGP_DYNAMIC_NEIGHBORS_LIMIT_MIN 1
1114#define BGP_DYNAMIC_NEIGHBORS_LIMIT_MAX 5000
1115
718e3744 1116/* Flag for peer_clear_soft(). */
d62a17ae 1117enum bgp_clear_type {
1118 BGP_CLEAR_SOFT_NONE,
1119 BGP_CLEAR_SOFT_OUT,
1120 BGP_CLEAR_SOFT_IN,
1121 BGP_CLEAR_SOFT_BOTH,
1122 BGP_CLEAR_SOFT_IN_ORF_PREFIX
718e3744 1123};
1124
1125/* Macros. */
1126#define BGP_INPUT(P) ((P)->ibuf)
1127#define BGP_INPUT_PNT(P) (STREAM_PNT(BGP_INPUT(P)))
d62a17ae 1128#define BGP_IS_VALID_STATE_FOR_NOTIF(S) \
1129 (((S) == OpenSent) || ((S) == OpenConfirm) || ((S) == Established))
718e3744 1130
718e3744 1131/* BGP error codes. */
1132#define BGP_SUCCESS 0
1133#define BGP_ERR_INVALID_VALUE -1
1134#define BGP_ERR_INVALID_FLAG -2
1135#define BGP_ERR_INVALID_AS -3
1136#define BGP_ERR_INVALID_BGP -4
1137#define BGP_ERR_PEER_GROUP_MEMBER -5
1138#define BGP_ERR_MULTIPLE_INSTANCE_USED -6
c8560b44
DW		 1139#define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -7
1140#define BGP_ERR_PEER_GROUP_CANT_CHANGE -8
1141#define BGP_ERR_PEER_GROUP_MISMATCH -9
1142#define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -10
1143#define BGP_ERR_MULTIPLE_INSTANCE_NOT_SET -11
1144#define BGP_ERR_AS_MISMATCH -12
1145#define BGP_ERR_PEER_FLAG_CONFLICT -13
1146#define BGP_ERR_PEER_GROUP_SHUTDOWN -14
1147#define BGP_ERR_PEER_FILTER_CONFLICT -15
1148#define BGP_ERR_NOT_INTERNAL_PEER -16
1149#define BGP_ERR_REMOVE_PRIVATE_AS -17
1150#define BGP_ERR_AF_UNCONFIGURED -18
1151#define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -19
1152#define BGP_ERR_INSTANCE_MISMATCH -20
1153#define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -21
1154#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -22
1155#define BGP_ERR_TCPSIG_FAILED -23
1156#define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -24
1157#define BGP_ERR_NO_IBGP_WITH_TTLHACK -25
1158#define BGP_ERR_NO_INTERFACE_CONFIG -26
1159#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS -27
1160#define BGP_ERR_AS_OVERRIDE -28
1161#define BGP_ERR_INVALID_DYNAMIC_NEIGHBORS_LIMIT -29
1162#define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_EXISTS -30
1163#define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND -31
1164#define BGP_ERR_INVALID_FOR_DYNAMIC_PEER -32
1165#define BGP_ERR_MAX -33
63fa10b5 1166#define BGP_ERR_INVALID_FOR_DIRECT_PEER -34
9bedbb1e 1167#define BGP_ERR_PEER_SAFI_CONFLICT -35
718e3744 1168
3f9c7369
DS		 1169/*
1170 * Enumeration of different policy kinds a peer can be configured with.
1171 */
d62a17ae 1172typedef enum {
1173 BGP_POLICY_ROUTE_MAP,
1174 BGP_POLICY_FILTER_LIST,
1175 BGP_POLICY_PREFIX_LIST,
1176 BGP_POLICY_DISTRIBUTE_LIST,
3f9c7369
DS		 1177} bgp_policy_type_e;
1178
718e3744 1179extern struct bgp_master *bm;
37fe7731 1180extern unsigned int multipath_num;
718e3744 1181
718e3744 1182/* Prototypes. */
d62a17ae 1183extern void bgp_terminate(void);
1184extern void bgp_reset(void);
1185extern time_t bgp_clock(void);
1186extern void bgp_zclient_reset(void);
1187extern int bgp_nexthop_set(union sockunion *, union sockunion *,
1188 struct bgp_nexthop *, struct peer *);
1189extern struct bgp *bgp_get_default(void);
1190extern struct bgp *bgp_lookup(as_t, const char *);
1191extern struct bgp *bgp_lookup_by_name(const char *);
1192extern struct bgp *bgp_lookup_by_vrf_id(vrf_id_t);
1193extern struct peer *peer_lookup(struct bgp *, union sockunion *);
1194extern struct peer *peer_lookup_by_conf_if(struct bgp *, const char *);
04b6bdc0 1195extern struct peer *peer_lookup_by_hostname(struct bgp *, const char *);
d62a17ae 1196extern void bgp_peer_conf_if_to_su_update(struct peer *);
ffd0c037 1197extern int peer_group_listen_range_del(struct peer_group *, struct prefix *);
d62a17ae 1198extern struct peer_group *peer_group_lookup(struct bgp *, const char *);
1199extern struct peer_group *peer_group_get(struct bgp *, const char *);
1200extern struct peer *peer_create_bind_dynamic_neighbor(struct bgp *,
1201 union sockunion *,
1202 struct peer_group *);
1203extern struct prefix *
1204peer_group_lookup_dynamic_neighbor_range(struct peer_group *, struct prefix *);
1205extern struct peer_group *peer_group_lookup_dynamic_neighbor(struct bgp *,
1206 struct prefix *,
1207 struct prefix **);
1208extern struct peer *peer_lookup_dynamic_neighbor(struct bgp *,
1209 union sockunion *);
1210extern void peer_drop_dynamic_neighbor(struct peer *);
28066f4b
DS		 1211
1212/*
1213 * Peers are incredibly easy to memory leak
1214 * due to the various ways that they are actually used
1215 * Provide some functionality to debug locks and unlocks
1216 */
1217extern struct peer *peer_lock_with_caller(const char *, struct peer *);
1218extern struct peer *peer_unlock_with_caller(const char *, struct peer *);
1219#define peer_unlock(A) peer_unlock_with_caller(__FUNCTION__, (A))
1220#define peer_lock(B) peer_lock_with_caller(__FUNCTION__, (B))
1221
d62a17ae 1222extern bgp_peer_sort_t peer_sort(struct peer *peer);
1223extern int peer_active(struct peer *);
1224extern int peer_active_nego(struct peer *);
1225extern void bgp_recalculate_all_bestpaths(struct bgp *bgp);
a80beece 1226extern struct peer *peer_create(union sockunion *, const char *, struct bgp *,
d62a17ae 1227 as_t, as_t, int, afi_t, safi_t,
1228 struct peer_group *);
1229extern struct peer *peer_create_accept(struct bgp *);
1230extern void peer_xfer_config(struct peer *dst, struct peer *src);
1231extern char *peer_uptime(time_t, char *, size_t, u_char, json_object *);
856ca177 1232
d62a17ae 1233extern int bgp_config_write(struct vty *);
1234extern void bgp_config_write_family_header(struct vty *, afi_t, safi_t, int *);
6b0655a2 1235
d62a17ae 1236extern void bgp_master_init(struct thread_master *master);
718e3744 1237
d62a17ae 1238extern void bgp_init(void);
1239extern void bgp_route_map_init(void);
1240extern void bgp_session_reset(struct peer *);
718e3744 1241
d62a17ae 1242extern int bgp_option_set(int);
1243extern int bgp_option_unset(int);
1244extern int bgp_option_check(int);
718e3744 1245
d62a17ae 1246extern int bgp_get(struct bgp **, as_t *, const char *, enum bgp_instance_type);
1247extern void bgp_instance_up(struct bgp *);
1248extern void bgp_instance_down(struct bgp *);
1249extern int bgp_delete(struct bgp *);
718e3744 1250
d62a17ae 1251extern int bgp_flag_set(struct bgp *, int);
1252extern int bgp_flag_unset(struct bgp *, int);
1253extern int bgp_flag_check(struct bgp *, int);
718e3744 1254
d62a17ae 1255extern void bgp_lock(struct bgp *);
1256extern void bgp_unlock(struct bgp *);
0088b5dc 1257
d62a17ae 1258extern void bgp_router_id_zebra_bump(vrf_id_t, const struct prefix *);
1259extern int bgp_router_id_static_set(struct bgp *, struct in_addr);
718e3744 1260
d62a17ae 1261extern int bgp_cluster_id_set(struct bgp *, struct in_addr *);
1262extern int bgp_cluster_id_unset(struct bgp *);
718e3744 1263
d62a17ae 1264extern int bgp_confederation_id_set(struct bgp *, as_t);
1265extern int bgp_confederation_id_unset(struct bgp *);
1266extern int bgp_confederation_peers_check(struct bgp *, as_t);
718e3744 1267
d62a17ae 1268extern int bgp_confederation_peers_add(struct bgp *, as_t);
1269extern int bgp_confederation_peers_remove(struct bgp *, as_t);
718e3744 1270
d62a17ae 1271extern int bgp_timers_set(struct bgp *, u_int32_t keepalive,
1272 u_int32_t holdtime);
1273extern int bgp_timers_unset(struct bgp *);
718e3744 1274
d62a17ae 1275extern int bgp_default_local_preference_set(struct bgp *, u_int32_t);
1276extern int bgp_default_local_preference_unset(struct bgp *);
718e3744 1277
d62a17ae 1278extern int bgp_default_subgroup_pkt_queue_max_set(struct bgp *bgp, u_int32_t);
1279extern int bgp_default_subgroup_pkt_queue_max_unset(struct bgp *bgp);
3f9c7369 1280
d62a17ae 1281extern int bgp_listen_limit_set(struct bgp *, int);
1282extern int bgp_listen_limit_unset(struct bgp *);
f14e6fdb 1283
d62a17ae 1284extern int bgp_update_delay_active(struct bgp *);
1285extern int bgp_update_delay_configured(struct bgp *);
1286extern void peer_as_change(struct peer *, as_t, int);
1287extern int peer_remote_as(struct bgp *, union sockunion *, const char *, as_t *,
1288 int, afi_t, safi_t);
1289extern int peer_group_remote_as(struct bgp *, const char *, as_t *, int);
1290extern int peer_delete(struct peer *peer);
1291extern int peer_group_delete(struct peer_group *);
1292extern int peer_group_remote_as_delete(struct peer_group *);
f14e6fdb 1293extern int peer_group_listen_range_add(struct peer_group *, struct prefix *);
718e3744 1294
d62a17ae 1295extern int peer_activate(struct peer *, afi_t, safi_t);
1296extern int peer_deactivate(struct peer *, afi_t, safi_t);
1297extern int peer_afc_set(struct peer *, afi_t, safi_t, int);
718e3744 1298
d62a17ae 1299extern int peer_group_bind(struct bgp *, union sockunion *, struct peer *,
1300 struct peer_group *, as_t *);
1301extern int peer_group_unbind(struct bgp *, struct peer *, struct peer_group *);
718e3744 1302
d62a17ae 1303extern int peer_flag_set(struct peer *, u_int32_t);
1304extern int peer_flag_unset(struct peer *, u_int32_t);
718e3744 1305
d62a17ae 1306extern int peer_af_flag_set(struct peer *, afi_t, safi_t, u_int32_t);
1307extern int peer_af_flag_unset(struct peer *, afi_t, safi_t, u_int32_t);
1308extern int peer_af_flag_check(struct peer *, afi_t, safi_t, u_int32_t);
718e3744 1309
d62a17ae 1310extern int peer_ebgp_multihop_set(struct peer *, int);
1311extern int peer_ebgp_multihop_unset(struct peer *);
1312extern int is_ebgp_multihop_configured(struct peer *peer);
718e3744 1313
d62a17ae 1314extern int peer_description_set(struct peer *, const char *);
1315extern int peer_description_unset(struct peer *);
718e3744 1316
d62a17ae 1317extern int peer_update_source_if_set(struct peer *, const char *);
1318extern int peer_update_source_addr_set(struct peer *, const union sockunion *);
1319extern int peer_update_source_unset(struct peer *);
718e3744 1320
d62a17ae 1321extern int peer_default_originate_set(struct peer *, afi_t, safi_t,
1322 const char *);
1323extern int peer_default_originate_unset(struct peer *, afi_t, safi_t);
718e3744 1324
d62a17ae 1325extern int peer_port_set(struct peer *, u_int16_t);
1326extern int peer_port_unset(struct peer *);
718e3744 1327
d62a17ae 1328extern int peer_weight_set(struct peer *, afi_t, safi_t, u_int16_t);
1329extern int peer_weight_unset(struct peer *, afi_t, safi_t);
718e3744 1330
d62a17ae 1331extern int peer_timers_set(struct peer *, u_int32_t keepalive,
1332 u_int32_t holdtime);
1333extern int peer_timers_unset(struct peer *);
718e3744 1334
d62a17ae 1335extern int peer_timers_connect_set(struct peer *, u_int32_t);
1336extern int peer_timers_connect_unset(struct peer *);
718e3744 1337
d62a17ae 1338extern int peer_advertise_interval_set(struct peer *, u_int32_t);
1339extern int peer_advertise_interval_unset(struct peer *);
718e3744 1340
d62a17ae 1341extern void peer_interface_set(struct peer *, const char *);
1342extern void peer_interface_unset(struct peer *);
718e3744 1343
d62a17ae 1344extern int peer_distribute_set(struct peer *, afi_t, safi_t, int, const char *);
1345extern int peer_distribute_unset(struct peer *, afi_t, safi_t, int);
718e3744 1346
d62a17ae 1347extern int peer_allowas_in_set(struct peer *, afi_t, safi_t, int, int);
1348extern int peer_allowas_in_unset(struct peer *, afi_t, safi_t);
718e3744 1349
d62a17ae 1350extern int peer_local_as_set(struct peer *, as_t, int, int);
1351extern int peer_local_as_unset(struct peer *);
718e3744 1352
d62a17ae 1353extern int peer_prefix_list_set(struct peer *, afi_t, safi_t, int,
1354 const char *);
1355extern int peer_prefix_list_unset(struct peer *, afi_t, safi_t, int);
718e3744 1356
d62a17ae 1357extern int peer_aslist_set(struct peer *, afi_t, safi_t, int, const char *);
1358extern int peer_aslist_unset(struct peer *, afi_t, safi_t, int);
718e3744 1359
d62a17ae 1360extern int peer_route_map_set(struct peer *, afi_t, safi_t, int, const char *);
1361extern int peer_route_map_unset(struct peer *, afi_t, safi_t, int);
718e3744 1362
d62a17ae 1363extern int peer_unsuppress_map_set(struct peer *, afi_t, safi_t, const char *);
0df7c91f 1364
d62a17ae 1365extern int peer_password_set(struct peer *, const char *);
1366extern int peer_password_unset(struct peer *);
0df7c91f 1367
d62a17ae 1368extern int peer_unsuppress_map_unset(struct peer *, afi_t, safi_t);
718e3744 1369
d62a17ae 1370extern int peer_maximum_prefix_set(struct peer *, afi_t, safi_t, u_int32_t,
1371 u_char, int, u_int16_t);
1372extern int peer_maximum_prefix_unset(struct peer *, afi_t, safi_t);
718e3744 1373
d62a17ae 1374extern int peer_clear(struct peer *, struct listnode **);
1375extern int peer_clear_soft(struct peer *, afi_t, safi_t, enum bgp_clear_type);
93406d87 1376
d62a17ae 1377extern int peer_ttl_security_hops_set(struct peer *, int);
1378extern int peer_ttl_security_hops_unset(struct peer *);
fa411a21 1379
d62a17ae 1380extern int peer_tx_shutdown_message_set(struct peer *, const char *msg);
1381extern int peer_tx_shutdown_message_unset(struct peer *);
73d70fa6 1382
d62a17ae 1383extern int bgp_route_map_update_timer(struct thread *thread);
518f0eb1 1384extern void bgp_route_map_terminate(void);
16286195 1385
d62a17ae 1386extern int peer_cmp(struct peer *p1, struct peer *p2);
3f9c7369 1387
5c525538 1388extern int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi, iana_safi_t pkt_safi,
d62a17ae 1389 afi_t *afi, safi_t *safi);
1390extern int bgp_map_afi_safi_int2iana(afi_t afi, safi_t safi,
5c525538 1391 iana_afi_t *pkt_afi, iana_safi_t *pkt_safi);
9cabb64b 1392
d62a17ae 1393extern struct peer_af *peer_af_create(struct peer *, afi_t, safi_t);
1394extern struct peer_af *peer_af_find(struct peer *, afi_t, safi_t);
1395extern int peer_af_delete(struct peer *, afi_t, safi_t);
3f9c7369 1396
ffd0c037
DS		 1397extern void bgp_close(void);
1398
d62a17ae 1399static inline int afindex(afi_t afi, safi_t safi)
3f9c7369 1400{
d62a17ae 1401 switch (afi) {
1402 case AFI_IP:
1403 switch (safi) {
1404 case SAFI_UNICAST:
1405 return BGP_AF_IPV4_UNICAST;
1406 break;
1407 case SAFI_MULTICAST:
1408 return BGP_AF_IPV4_MULTICAST;
1409 break;
1410 case SAFI_LABELED_UNICAST:
1411 return BGP_AF_IPV4_LBL_UNICAST;
1412 break;
1413 case SAFI_MPLS_VPN:
1414 return BGP_AF_IPV4_VPN;
1415 break;
1416 case SAFI_ENCAP:
1417 return BGP_AF_IPV4_ENCAP;
1418 break;
1419 default:
1420 return BGP_AF_MAX;
1421 break;
1422 }
1423 break;
1424 case AFI_IP6:
1425 switch (safi) {
1426 case SAFI_UNICAST:
1427 return BGP_AF_IPV6_UNICAST;
1428 break;
1429 case SAFI_MULTICAST:
1430 return BGP_AF_IPV6_MULTICAST;
1431 break;
1432 case SAFI_LABELED_UNICAST:
1433 return BGP_AF_IPV6_LBL_UNICAST;
1434 break;
1435 case SAFI_MPLS_VPN:
1436 return BGP_AF_IPV6_VPN;
1437 break;
1438 case SAFI_ENCAP:
1439 return BGP_AF_IPV6_ENCAP;
1440 break;
1441 default:
1442 return BGP_AF_MAX;
1443 break;
1444 }
1445 break;
1446 case AFI_L2VPN:
1447 switch (safi) {
1448 case SAFI_EVPN:
1449 return BGP_AF_L2VPN_EVPN;
1450 break;
1451 default:
1452 return BGP_AF_MAX;
1453 break;
1454 }
3f9c7369 1455 default:
d62a17ae 1456 return BGP_AF_MAX;
1457 break;
3f9c7369 1458 }
3f9c7369
DS		 1459}
1460
c8560b44 1461/* If the peer is not a peer-group but is bound to a peer-group return 1 */
d62a17ae 1462static inline int peer_group_active(struct peer *peer)
3f9c7369 1463{
d62a17ae 1464 if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) && peer->group)
1465 return 1;
1466 return 0;
3f9c7369
DS		 1467}
1468
1469/* If peer is negotiated at least one address family return 1. */
d62a17ae 1470static inline int peer_afi_active_nego(const struct peer *peer, afi_t afi)
3f9c7369 1471{
d62a17ae 1472 if (peer->afc_nego[afi][SAFI_UNICAST]
1473 || peer->afc_nego[afi][SAFI_MULTICAST]
1474 || peer->afc_nego[afi][SAFI_LABELED_UNICAST]
1475 || peer->afc_nego[afi][SAFI_MPLS_VPN]
1476 || peer->afc_nego[afi][SAFI_ENCAP]
1477 || peer->afc_nego[afi][SAFI_EVPN])
1478 return 1;
1479 return 0;
3f9c7369
DS		 1480}
1481
f14e6fdb 1482/* If at least one address family activated for group, return 1. */
d62a17ae 1483static inline int peer_group_af_configured(struct peer_group *group)
f14e6fdb 1484{
d62a17ae 1485 struct peer *peer = group->conf;
1486
1487 if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST]
1488 || peer->afc[AFI_IP][SAFI_LABELED_UNICAST]
1489 || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP]
1490 || peer->afc[AFI_IP6][SAFI_UNICAST]
1491 || peer->afc[AFI_IP6][SAFI_MULTICAST]
1492 || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST]
1493 || peer->afc[AFI_IP6][SAFI_MPLS_VPN]
ba0fcaf6 1494 || peer->afc[AFI_IP6][SAFI_ENCAP]
1495 || peer->afc[AFI_L2VPN][SAFI_EVPN])
d62a17ae 1496 return 1;
1497 return 0;
f14e6fdb
DS		 1498}
1499
d62a17ae 1500static inline char *timestamp_string(time_t ts)
3f9c7369 1501{
d62a17ae 1502 time_t tbuf;
1503 tbuf = time(NULL) - (bgp_clock() - ts);
1504 return ctime(&tbuf);
3f9c7369
DS		 1505}
1506
d62a17ae 1507static inline int peer_established(struct peer *peer)
3f9c7369 1508{
d62a17ae 1509 if (peer->status == Established)
1510 return 1;
1511 return 0;
3f9c7369
DS		 1512}
1513
d62a17ae 1514static inline int peer_dynamic_neighbor(struct peer *peer)
f14e6fdb 1515{
d62a17ae 1516 return (CHECK_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR)) ? 1 : 0;
f14e6fdb
DS		 1517}
1518
d62a17ae 1519static inline int peer_cap_enhe(struct peer *peer, afi_t afi, safi_t safi)
8a92a8a0 1520{
d62a17ae 1521 return (CHECK_FLAG(peer->af_cap[afi][safi], PEER_CAP_ENHE_AF_NEGO));
8a92a8a0
DS		 1522}
1523
d1be1f08 1524/* Lookup VRF for BGP instance based on its type. */
d62a17ae 1525static inline struct vrf *bgp_vrf_lookup_by_instance_type(struct bgp *bgp)
d1be1f08 1526{
d62a17ae 1527 struct vrf *vrf;
d1be1f08 1528
d62a17ae 1529 if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)
1530 vrf = vrf_lookup_by_id(VRF_DEFAULT);
1531 else if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF)
1532 vrf = vrf_lookup_by_name(bgp->name);
1533 else
1534 vrf = NULL;
d1be1f08 1535
d62a17ae 1536 return vrf;
d1be1f08 1537}
1538
1539/* Link BGP instance to VRF. */
d62a17ae 1540static inline void bgp_vrf_link(struct bgp *bgp, struct vrf *vrf)
d1be1f08 1541{
d62a17ae 1542 bgp->vrf_id = vrf->vrf_id;
1543 if (vrf->info != (void *)bgp) {
1544 bgp_lock(bgp);
1545 vrf->info = (void *)bgp;
1546 }
d1be1f08 1547}
1548
1549/* Unlink BGP instance from VRF. */
d62a17ae 1550static inline void bgp_vrf_unlink(struct bgp *bgp, struct vrf *vrf)
d1be1f08 1551{
d62a17ae 1552 if (vrf->info == (void *)bgp) {
1553 vrf->info = NULL;
1554 bgp_unlock(bgp);
1555 }
1556 bgp->vrf_id = VRF_UNKNOWN;
d1be1f08 1557}
1558
d62a17ae 1559extern void bgp_update_redist_vrf_bitmaps(struct bgp *, vrf_id_t);
65efcfce
LB		 1560
1561/* For benefit of rfapi */
d62a17ae 1562extern struct peer *peer_new(struct bgp *bgp);
65efcfce 1563
00d252cb 1564#endif /* _QUAGGA_BGPD_H */
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