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Merge branch 'stable/3.0' into tmp-3.0-master-merge
[mirror_frr.git] / bgpd / bgpd.h
CommitLineData
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
d62a17ae 383 /* EVPN enable - advertise local VNIs and their MACs etc. */
384 int advertise_all_vni;
14c1a7bf 385
d62a17ae 386 /* Hash table of Import RTs to EVIs */
387 struct hash *import_rt_hash;
14c1a7bf 388
d62a17ae 389 /* Id space for automatic RD derivation for an EVI */
390 bitfield_t rd_idspace;
14c1a7bf 391
d62a17ae 392 QOBJ_FIELDS
718e3744 393};
19df7279 394DECLARE_QOBJ_TYPE(bgp)
718e3744 395
2a3d5731 396#define BGP_ROUTE_ADV_HOLD(bgp) (bgp->main_peers_update_hold)
d889623f 397
d62a17ae 398#define IS_BGP_INST_KNOWN_TO_ZEBRA(bgp) \
399 (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT \
400 || (bgp->inst_type == BGP_INSTANCE_TYPE_VRF \
401 && bgp->vrf_id != VRF_UNKNOWN))
ad4cbda1 402
718e3744 403/* BGP peer-group support. */
d62a17ae 404struct peer_group {
405 /* Name of the peer-group. */
406 char *name;
718e3744 407
d62a17ae 408 /* Pointer to BGP. */
409 struct bgp *bgp;
718e3744 410
d62a17ae 411 /* Peer-group client list. */
412 struct list *peer;
f14e6fdb 413
d62a17ae 414 /** Dynamic neighbor listening ranges */
415 struct list *listen_range[AFI_MAX];
416
417 /* Peer-group config */
418 struct peer *conf;
718e3744 419};
420
421/* BGP Notify message format. */
d62a17ae 422struct bgp_notify {
423 u_char code;
424 u_char subcode;
425 char *data;
426 bgp_size_t length;
427 u_char *raw_data;
718e3744 428};
429
430/* Next hop self address. */
d62a17ae 431struct bgp_nexthop {
432 struct interface *ifp;
433 struct in_addr v4;
434 struct in6_addr v6_global;
435 struct in6_addr v6_local;
718e3744 436};
437
a82478b9
DS		 438/* BGP addpath values */
439#define BGP_ADDPATH_RX 1
440#define BGP_ADDPATH_TX 2
441#define BGP_ADDPATH_ID_LEN 4
442
adbac85e
DW		 443#define BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE 1
444
718e3744 445/* BGP router distinguisher value. */
446#define BGP_RD_SIZE 8
447
d62a17ae 448struct bgp_rd {
449 u_char val[BGP_RD_SIZE];
718e3744 450};
451
2a3d5731
DW		 452#define RMAP_IN 0
453#define RMAP_OUT 1
454#define RMAP_MAX 2
fee0f4c6 455
65efcfce
LB		 456#include "filter.h"
457
718e3744 458/* BGP filter structure. */
d62a17ae 459struct bgp_filter {
460 /* Distribute-list. */
461 struct {
462 char *name;
463 struct access_list *alist;
464 } dlist[FILTER_MAX];
465
466 /* Prefix-list. */
467 struct {
468 char *name;
469 struct prefix_list *plist;
470 } plist[FILTER_MAX];
471
472 /* Filter-list. */
473 struct {
474 char *name;
475 struct as_list *aslist;
476 } aslist[FILTER_MAX];
477
478 /* Route-map. */
479 struct {
480 char *name;
481 struct route_map *map;
482 } map[RMAP_MAX];
483
484 /* Unsuppress-map. */
485 struct {
486 char *name;
487 struct route_map *map;
488 } usmap;
718e3744 489};
490
6d85b15b
JBD		 491/* IBGP/EBGP identifier. We also have a CONFED peer, which is to say,
492 a peer who's AS is part of our Confederation. */
d62a17ae 493typedef enum {
494 BGP_PEER_IBGP = 1,
495 BGP_PEER_EBGP,
496 BGP_PEER_INTERNAL,
497 BGP_PEER_CONFED,
6d85b15b
JBD		 498} bgp_peer_sort_t;
499
d6661008
DS		 500/* BGP message header and packet size. */
501#define BGP_MARKER_SIZE 16
502#define BGP_HEADER_SIZE 19
503#define BGP_MAX_PACKET_SIZE 4096
0a91ff55 504#define BGP_MAX_PACKET_SIZE_OVERFLOW 1024
d6661008 505
3f9c7369
DS		 506/*
507 * Trigger delay for bgp_announce_route().
508 */
509#define BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS 100
510#define BGP_ANNOUNCE_ROUTE_DELAY_MS 500
511
d62a17ae 512struct peer_af {
513 /* back pointer to the peer */
514 struct peer *peer;
3f9c7369 515
d62a17ae 516 /* which subgroup the peer_af belongs to */
517 struct update_subgroup *subgroup;
3f9c7369 518
d62a17ae 519 /* for being part of an update subgroup's peer list */
520 LIST_ENTRY(peer_af) subgrp_train;
3f9c7369 521
d62a17ae 522 /* for being part of a packet's peer list */
523 LIST_ENTRY(peer_af) pkt_train;
3f9c7369 524
d62a17ae 525 struct bpacket *next_pkt_to_send;
3f9c7369 526
d62a17ae 527 /*
528 * Trigger timer for bgp_announce_route().
529 */
530 struct thread *t_announce_route;
3f9c7369 531
d62a17ae 532 afi_t afi;
533 safi_t safi;
534 int afid;
3f9c7369
DS		 535};
536
718e3744 537/* BGP neighbor structure. */
d62a17ae 538struct peer {
539 /* BGP structure. */
540 struct bgp *bgp;
541
542 /* reference count, primarily to allow bgp_process'ing of route_node's
543 * to be done after a struct peer is deleted.
544 *
545 * named 'lock' for hysterical reasons within Quagga.
546 */
547 int lock;
548
549 /* BGP peer group. */
550 struct peer_group *group;
551 uint64_t version[AFI_MAX][SAFI_MAX];
552
553 /* BGP peer_af structures, per configured AF on this peer */
554 struct peer_af *peer_af_array[BGP_AF_MAX];
555
556 /* Peer's remote AS number. */
557 int as_type;
558 as_t as;
559
560 /* Peer's local AS number. */
561 as_t local_as;
562
563 bgp_peer_sort_t sort;
564
565 /* Peer's Change local AS number. */
566 as_t change_local_as;
567
568 /* Remote router ID. */
569 struct in_addr remote_id;
570
571 /* Local router ID. */
572 struct in_addr local_id;
573
574 /* Packet receive and send buffer. */
575 struct stream *ibuf;
576 struct stream_fifo *obuf;
577 struct stream *work;
578
579 /* We use a separate stream to encode MP_REACH_NLRI for efficient
580 * NLRI packing. peer->work stores all the other attributes. The
581 * actual packet is then constructed by concatenating the two.
582 */
583 struct stream *scratch;
584
585 /* the doppelganger peer structure, due to dual TCP conn setup */
586 struct peer *doppelganger;
587
588 /* Status of the peer. */
589 int status;
590 int ostatus;
591
592 /* FSM events, stored for debug purposes.
593 * Note: uchar used for reduced memory usage.
594 */
595 unsigned char cur_event;
596 unsigned char last_event;
597 unsigned char last_major_event;
598
599 /* Peer index, used for dumping TABLE_DUMP_V2 format */
600 uint16_t table_dump_index;
601
602 /* Peer information */
603 int fd; /* File descriptor */
604 int ttl; /* TTL of TCP connection to the peer. */
605 int rtt; /* Estimated round-trip-time from TCP_INFO */
606 int gtsm_hops; /* minimum hopcount to peer */
607 char *desc; /* Description of the peer. */
608 unsigned short port; /* Destination port for peer */
609 char *host; /* Printable address of the peer. */
610 union sockunion su; /* Sockunion address of the peer. */
611 /* $FRR indent$ */
612 /* clang-format off */
a80beece 613#define BGP_PEER_SU_UNSPEC(peer) (peer->su.sa.sa_family == AF_UNSPEC)
d62a17ae 614 time_t uptime; /* Last Up/Down time */
615 time_t readtime; /* Last read time */
616 time_t resettime; /* Last reset time */
617
618 ifindex_t ifindex; /* ifindex of the BGP connection. */
619 char *conf_if; /* neighbor interface config name. */
620 struct interface *ifp; /* corresponding interface */
621 char *ifname; /* bind interface name. */
622 char *update_if;
623 union sockunion *update_source;
624
625 union sockunion *su_local; /* Sockunion of local address. */
626 union sockunion *su_remote; /* Sockunion of remote address. */
627 int shared_network; /* Is this peer shared same network. */
628 struct bgp_nexthop nexthop; /* Nexthop */
629
630 /* Peer address family configuration. */
631 u_char afc[AFI_MAX][SAFI_MAX];
632 u_char afc_nego[AFI_MAX][SAFI_MAX];
633 u_char afc_adv[AFI_MAX][SAFI_MAX];
634 u_char afc_recv[AFI_MAX][SAFI_MAX];
635
636 /* Capability flags (reset in bgp_stop) */
637 u_int32_t cap;
718e3744 638#define PEER_CAP_REFRESH_ADV (1 << 0) /* refresh advertised */
639#define PEER_CAP_REFRESH_OLD_RCV (1 << 1) /* refresh old received */
640#define PEER_CAP_REFRESH_NEW_RCV (1 << 2) /* refresh rfc received */
641#define PEER_CAP_DYNAMIC_ADV (1 << 3) /* dynamic advertised */
642#define PEER_CAP_DYNAMIC_RCV (1 << 4) /* dynamic received */
538621f2 643#define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */
644#define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */
0b2aa3a0
PJ		 645#define PEER_CAP_AS4_ADV (1 << 7) /* as4 advertised */
646#define PEER_CAP_AS4_RCV (1 << 8) /* as4 received */
fe7d2a48
DS		 647#define PEER_CAP_RESTART_BIT_ADV (1 << 9) /* sent restart state */
648#define PEER_CAP_RESTART_BIT_RCV (1 << 10) /* peer restart state */
a82478b9
DS		 649#define PEER_CAP_ADDPATH_ADV (1 << 11) /* addpath advertised */
650#define PEER_CAP_ADDPATH_RCV (1 << 12) /* addpath received */
c744aa9f
DS		 651#define PEER_CAP_ENHE_ADV (1 << 13) /* Extended nexthop advertised */
652#define PEER_CAP_ENHE_RCV (1 << 14) /* Extended nexthop received */
04b6bdc0
DW		 653#define PEER_CAP_HOSTNAME_ADV (1 << 15) /* hostname advertised */
654#define PEER_CAP_HOSTNAME_RCV (1 << 16) /* hostname received */
718e3744 655
d62a17ae 656 /* Capability flags (reset in bgp_stop) */
657 u_int32_t af_cap[AFI_MAX][SAFI_MAX];
718e3744 658#define PEER_CAP_ORF_PREFIX_SM_ADV (1 << 0) /* send-mode advertised */
659#define PEER_CAP_ORF_PREFIX_RM_ADV (1 << 1) /* receive-mode advertised */
660#define PEER_CAP_ORF_PREFIX_SM_RCV (1 << 2) /* send-mode received */
661#define PEER_CAP_ORF_PREFIX_RM_RCV (1 << 3) /* receive-mode received */
662#define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1 << 4) /* send-mode received */
663#define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1 << 5) /* receive-mode received */
93406d87 664#define PEER_CAP_RESTART_AF_RCV (1 << 6) /* graceful restart afi/safi received */
665#define PEER_CAP_RESTART_AF_PRESERVE_RCV (1 << 7) /* graceful restart afi/safi F-bit received */
a82478b9
DS		 666#define PEER_CAP_ADDPATH_AF_TX_ADV (1 << 8) /* addpath tx advertised */
667#define PEER_CAP_ADDPATH_AF_TX_RCV (1 << 9) /* addpath tx received */
668#define PEER_CAP_ADDPATH_AF_RX_ADV (1 << 10) /* addpath rx advertised */
669#define PEER_CAP_ADDPATH_AF_RX_RCV (1 << 11) /* addpath rx received */
8a92a8a0
DS		 670#define PEER_CAP_ENHE_AF_ADV (1 << 12) /* Extended nexthopi afi/safi advertised */
671#define PEER_CAP_ENHE_AF_RCV (1 << 13) /* Extended nexthop afi/safi received */
672#define PEER_CAP_ENHE_AF_NEGO (1 << 14) /* Extended nexthop afi/safi negotiated */
718e3744 673
d62a17ae 674 /* Global configuration flags. */
675 u_int32_t flags;
718e3744 676#define PEER_FLAG_PASSIVE (1 << 0) /* passive mode */
677#define PEER_FLAG_SHUTDOWN (1 << 1) /* shutdown */
678#define PEER_FLAG_DONT_CAPABILITY (1 << 2) /* dont-capability */
679#define PEER_FLAG_OVERRIDE_CAPABILITY (1 << 3) /* override-capability */
680#define PEER_FLAG_STRICT_CAP_MATCH (1 << 4) /* strict-match */
c9502438 681#define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 5) /* dynamic capability */
6ffd2079 682#define PEER_FLAG_DISABLE_CONNECTED_CHECK (1 << 6) /* disable-connected-check */
c9502438 683#define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 7) /* local-as no-prepend */
9d3f9705 684#define PEER_FLAG_LOCAL_AS_REPLACE_AS (1 << 8) /* local-as no-prepend replace-as */
1ff9a340
DS		 685#define PEER_FLAG_DELETE (1 << 9) /* mark the peer for deleting */
686#define PEER_FLAG_CONFIG_NODE (1 << 10) /* the node to update configs on */
7f342629
DS		 687#define PEER_FLAG_LONESOUL (1 << 11)
688#define PEER_FLAG_DYNAMIC_NEIGHBOR (1 << 12) /* dynamic neighbor */
689#define PEER_FLAG_CAPABILITY_ENHE (1 << 13) /* Extended next-hop (rfc 5549)*/
88177fe3 690#define PEER_FLAG_IFPEER_V6ONLY (1 << 14) /* if-based peer is v6 only */
65efcfce
LB		 691#if ENABLE_BGP_VNC
692#define PEER_FLAG_IS_RFAPI_HD (1 << 15) /* attached to rfapi HD */
693#endif
d62a17ae 694 /* outgoing message sent in CEASE_ADMIN_SHUTDOWN notify */
695 char *tx_shutdown_message;
718e3744 696
d62a17ae 697 /* NSF mode (graceful restart) */
698 u_char nsf[AFI_MAX][SAFI_MAX];
93406d87 699
d62a17ae 700 /* Per AF configuration flags. */
701 u_int32_t af_flags[AFI_MAX][SAFI_MAX];
718e3744 702#define PEER_FLAG_SEND_COMMUNITY (1 << 0) /* send-community */
703#define PEER_FLAG_SEND_EXT_COMMUNITY (1 << 1) /* send-community ext. */
704#define PEER_FLAG_NEXTHOP_SELF (1 << 2) /* next-hop-self */
705#define PEER_FLAG_REFLECTOR_CLIENT (1 << 3) /* reflector-client */
706#define PEER_FLAG_RSERVER_CLIENT (1 << 4) /* route-server-client */
707#define PEER_FLAG_SOFT_RECONFIG (1 << 5) /* soft-reconfiguration */
708#define PEER_FLAG_AS_PATH_UNCHANGED (1 << 6) /* transparent-as */
709#define PEER_FLAG_NEXTHOP_UNCHANGED (1 << 7) /* transparent-next-hop */
710#define PEER_FLAG_MED_UNCHANGED (1 << 8) /* transparent-next-hop */
711#define PEER_FLAG_DEFAULT_ORIGINATE (1 << 9) /* default-originate */
712#define PEER_FLAG_REMOVE_PRIVATE_AS (1 << 10) /* remove-private-as */
713#define PEER_FLAG_ALLOWAS_IN (1 << 11) /* set allowas-in */
714#define PEER_FLAG_ORF_PREFIX_SM (1 << 12) /* orf capability send-mode */
715#define PEER_FLAG_ORF_PREFIX_RM (1 << 13) /* orf capability receive-mode */
716#define PEER_FLAG_MAX_PREFIX (1 << 14) /* maximum prefix */
717#define PEER_FLAG_MAX_PREFIX_WARNING (1 << 15) /* maximum prefix warning-only */
0df7c91f 718#define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1 << 16) /* leave link-local nexthop unchanged */
a538debe 719#define PEER_FLAG_FORCE_NEXTHOP_SELF (1 << 17) /* next-hop-self force */
5000f21c
DS		 720#define PEER_FLAG_REMOVE_PRIVATE_AS_ALL (1 << 18) /* remove-private-as all */
721#define PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE (1 << 19) /* remove-private-as replace-as */
c7122e14 722#define PEER_FLAG_AS_OVERRIDE (1 << 20) /* as-override */
88b8ed8d 723#define PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE (1 << 21) /* remove-private-as all replace-as */
adbac85e 724#define PEER_FLAG_ADDPATH_TX_ALL_PATHS (1 << 22) /* addpath-tx-all-paths */
06370dac 725#define PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS (1 << 23) /* addpath-tx-bestpath-per-AS */
d93f7ffc 726#define PEER_FLAG_WEIGHT (1 << 24) /* weight */
aac9ef6c 727#define PEER_FLAG_ALLOWAS_IN_ORIGIN (1 << 25) /* allowas-in origin */
57d187bc 728#define PEER_FLAG_SEND_LARGE_COMMUNITY (1 << 26) /* Send large Communities */
0df7c91f 729
d62a17ae 730 /* MD5 password */
731 char *password;
718e3744 732
d62a17ae 733 /* default-originate route-map. */
734 struct {
735 char *name;
736 struct route_map *map;
737 } default_rmap[AFI_MAX][SAFI_MAX];
718e3744 738
d62a17ae 739 /* Peer status flags. */
740 u_int16_t sflags;
718e3744 741#define PEER_STATUS_ACCEPT_PEER (1 << 0) /* accept peer */
742#define PEER_STATUS_PREFIX_OVERFLOW (1 << 1) /* prefix-overflow */
743#define PEER_STATUS_CAPABILITY_OPEN (1 << 2) /* capability open send */
744#define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */
745#define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */
93406d87 746#define PEER_STATUS_NSF_MODE (1 << 5) /* NSF aware peer */
747#define PEER_STATUS_NSF_WAIT (1 << 6) /* wait comeback peer */
718e3744 748
d62a17ae 749 /* Peer status af flags (reset in bgp_stop) */
750 u_int16_t af_sflags[AFI_MAX][SAFI_MAX];
718e3744 751#define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */
752#define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */
840fced9
DS		 753#define PEER_STATUS_PREFIX_THRESHOLD (1 << 2) /* exceed prefix-threshold */
754#define PEER_STATUS_PREFIX_LIMIT (1 << 3) /* exceed prefix-limit */
755#define PEER_STATUS_EOR_SEND (1 << 4) /* end-of-rib send to peer */
756#define PEER_STATUS_EOR_RECEIVED (1 << 5) /* end-of-rib received from peer */
e0701b79 757
d62a17ae 758 /* Default attribute value for the peer. */
759 u_int32_t config;
d93f7ffc
DW		 760#define PEER_CONFIG_TIMER (1 << 0) /* keepalive & holdtime */
761#define PEER_CONFIG_CONNECT (1 << 1) /* connect */
762#define PEER_CONFIG_ROUTEADV (1 << 2) /* route advertise */
8ffedcea 763
d62a17ae 764 u_int32_t holdtime;
765 u_int32_t keepalive;
766 u_int32_t connect;
767 u_int32_t routeadv;
768
769 /* Timer values. */
770 u_int32_t v_start;
771 u_int32_t v_connect;
772 u_int32_t v_holdtime;
773 u_int32_t v_keepalive;
774 u_int32_t v_routeadv;
775 u_int32_t v_pmax_restart;
776 u_int32_t v_gr_restart;
777
778 /* Threads. */
779 struct thread *t_read;
780 struct thread *t_write;
781 struct thread *t_start;
782 struct thread *t_connect;
783 struct thread *t_holdtime;
784 struct thread *t_keepalive;
785 struct thread *t_routeadv;
786 struct thread *t_pmax_restart;
787 struct thread *t_gr_restart;
788 struct thread *t_gr_stale;
789
790 /* workqueues */
791 struct work_queue *clear_node_queue;
792
793 /* Statistics field */
794 u_int32_t open_in; /* Open message input count */
795 u_int32_t open_out; /* Open message output count */
796 u_int32_t update_in; /* Update message input count */
797 u_int32_t update_out; /* Update message ouput count */
798 time_t update_time; /* Update message received time. */
799 u_int32_t keepalive_in; /* Keepalive input count */
800 u_int32_t keepalive_out; /* Keepalive output count */
801 u_int32_t notify_in; /* Notify input count */
802 u_int32_t notify_out; /* Notify output count */
803 u_int32_t refresh_in; /* Route Refresh input count */
804 u_int32_t refresh_out; /* Route Refresh output count */
805 u_int32_t dynamic_cap_in; /* Dynamic Capability input count. */
806 u_int32_t dynamic_cap_out; /* Dynamic Capability output count. */
807
808 /* BGP state count */
809 u_int32_t established; /* Established */
810 u_int32_t dropped; /* Dropped */
811
812 /* Update delay related fields */
813 u_char update_delay_over; /* When this is set, BGP is no more waiting
814 for EOR */
815
816 /* Syncronization list and time. */
817 struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX];
818 time_t synctime;
819 time_t last_write; /* timestamp when the last msg was written */
820 time_t last_update; /* timestamp when the last UPDATE msg was written */
821
822 /* Send prefix count. */
823 unsigned long scount[AFI_MAX][SAFI_MAX];
824
825 /* Announcement attribute hash. */
826 struct hash *hash[AFI_MAX][SAFI_MAX];
827
828 /* Notify data. */
829 struct bgp_notify notify;
830
831 /* Whole packet size to be read. */
832 unsigned long packet_size;
833
834 /* Filter structure. */
835 struct bgp_filter filter[AFI_MAX][SAFI_MAX];
836
837 /* ORF Prefix-list */
838 struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX];
839
840 /* Text description of last attribute rcvd */
841 char rcvd_attr_str[BUFSIZ];
842
843 /* Track if we printed the attribute in debugs */
844 int rcvd_attr_printed;
845
846 /* Prefix count. */
847 unsigned long pcount[AFI_MAX][SAFI_MAX];
848
849 /* Max prefix count. */
850 unsigned long pmax[AFI_MAX][SAFI_MAX];
851 u_char pmax_threshold[AFI_MAX][SAFI_MAX];
852 u_int16_t pmax_restart[AFI_MAX][SAFI_MAX];
e0701b79 853#define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75
718e3744 854
d62a17ae 855 /* allowas-in. */
856 char allowas_in[AFI_MAX][SAFI_MAX];
ac41b2a2 857
d62a17ae 858 /* weight */
859 unsigned long weight[AFI_MAX][SAFI_MAX];
d93f7ffc 860
d62a17ae 861 /* peer reset cause */
862 char last_reset;
e0701b79 863#define PEER_DOWN_RID_CHANGE 1 /* bgp router-id command */
864#define PEER_DOWN_REMOTE_AS_CHANGE 2 /* neighbor remote-as command */
865#define PEER_DOWN_LOCAL_AS_CHANGE 3 /* neighbor local-as command */
866#define PEER_DOWN_CLID_CHANGE 4 /* bgp cluster-id command */
867#define PEER_DOWN_CONFED_ID_CHANGE 5 /* bgp confederation identifier command */
868#define PEER_DOWN_CONFED_PEER_CHANGE 6 /* bgp confederation peer command */
869#define PEER_DOWN_RR_CLIENT_CHANGE 7 /* neighbor route-reflector-client command */
870#define PEER_DOWN_RS_CLIENT_CHANGE 8 /* neighbor route-server-client command */
871#define PEER_DOWN_UPDATE_SOURCE_CHANGE 9 /* neighbor update-source command */
872#define PEER_DOWN_AF_ACTIVATE 10 /* neighbor activate command */
873#define PEER_DOWN_USER_SHUTDOWN 11 /* neighbor shutdown command */
874#define PEER_DOWN_USER_RESET 12 /* clear ip bgp command */
875#define PEER_DOWN_NOTIFY_RECEIVED 13 /* notification received */
876#define PEER_DOWN_NOTIFY_SEND 14 /* notification send */
877#define PEER_DOWN_CLOSE_SESSION 15 /* tcp session close */
878#define PEER_DOWN_NEIGHBOR_DELETE 16 /* neghbor delete */
879#define PEER_DOWN_RMAP_BIND 17 /* neghbor peer-group command */
880#define PEER_DOWN_RMAP_UNBIND 18 /* no neighbor peer-group command */
881#define PEER_DOWN_CAPABILITY_CHANGE 19 /* neighbor capability command */
882#define PEER_DOWN_PASSIVE_CHANGE 20 /* neighbor passive command */
883#define PEER_DOWN_MULTIHOP_CHANGE 21 /* neighbor multihop command */
93406d87 884#define PEER_DOWN_NSF_CLOSE_SESSION 22 /* NSF tcp session close */
8ffedcea 885#define PEER_DOWN_V6ONLY_CHANGE 23 /* if-based peering v6only toggled */
7bbc6864 886#define PEER_DOWN_BFD_DOWN 24 /* BFD down */
e60480bd
DD		 887#define PEER_DOWN_IF_DOWN 25 /* Interface down */
888#define PEER_DOWN_NBR_ADDR_DEL 26 /* Peer address lost */
d62a17ae 889 unsigned long last_reset_cause_size;
890 u_char last_reset_cause[BGP_MAX_PACKET_SIZE];
e0701b79 891
d62a17ae 892 /* The kind of route-map Flags.*/
893 u_char rmap_type;
ac41b2a2 894#define PEER_RMAP_TYPE_IN (1 << 0) /* neighbor route-map in */
895#define PEER_RMAP_TYPE_OUT (1 << 1) /* neighbor route-map out */
896#define PEER_RMAP_TYPE_NETWORK (1 << 2) /* network route-map */
897#define PEER_RMAP_TYPE_REDISTRIBUTE (1 << 3) /* redistribute route-map */
898#define PEER_RMAP_TYPE_DEFAULT (1 << 4) /* default-originate route-map */
899#define PEER_RMAP_TYPE_NOSET (1 << 5) /* not allow to set commands */
fee0f4c6 900#define PEER_RMAP_TYPE_IMPORT (1 << 6) /* neighbor route-map import */
901#define PEER_RMAP_TYPE_EXPORT (1 << 7) /* neighbor route-map export */
6410e93a 902
d62a17ae 903 /* peer specific BFD information */
904 struct bfd_info *bfd_info;
04b6bdc0 905
d62a17ae 906 /* hostname and domainname advertised by host */
907 char *hostname;
908 char *domainname;
19df7279 909
d62a17ae 910 QOBJ_FIELDS
718e3744 911};
19df7279 912DECLARE_QOBJ_TYPE(peer)
718e3744 913
ad4cbda1 914/* Check if suppress start/restart of sessions to peer. */
d62a17ae 915#define BGP_PEER_START_SUPPRESSED(P) \
916 (CHECK_FLAG((P)->flags, PEER_FLAG_SHUTDOWN) \
917 || CHECK_FLAG((P)->sflags, PEER_STATUS_PREFIX_OVERFLOW))
ad4cbda1 918
0df7c91f
PJ		 919#define PEER_PASSWORD_MINLEN (1)
920#define PEER_PASSWORD_MAXLEN (80)
921
718e3744 922/* This structure's member directly points incoming packet data
923 stream. */
d62a17ae 924struct bgp_nlri {
925 /* AFI. */
a46a2e9b 926 uint16_t afi; /* iana_afi_t */
718e3744 927
d62a17ae 928 /* SAFI. */
a46a2e9b 929 uint8_t safi; /* iana_safi_t */
718e3744 930
d62a17ae 931 /* Pointer to NLRI byte stream. */
932 u_char *nlri;
718e3744 933
d62a17ae 934 /* Length of whole NLRI. */
935 bgp_size_t length;
718e3744 936};
937
938/* BGP versions. */
939#define BGP_VERSION_4 4
718e3744 940
941/* Default BGP port number. */
942#define BGP_PORT_DEFAULT 179
943
718e3744 944/* BGP minimum message size. */
945#define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10)
946#define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4)
947#define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2)
948#define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0)
949#define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4)
950#define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3)
951
952/* BGP message types. */
953#define BGP_MSG_OPEN 1
954#define BGP_MSG_UPDATE 2
955#define BGP_MSG_NOTIFY 3
956#define BGP_MSG_KEEPALIVE 4
957#define BGP_MSG_ROUTE_REFRESH_NEW 5
958#define BGP_MSG_CAPABILITY 6
959#define BGP_MSG_ROUTE_REFRESH_OLD 128
960
961/* BGP open optional parameter. */
962#define BGP_OPEN_OPT_AUTH 1
963#define BGP_OPEN_OPT_CAP 2
964
965/* BGP4 attribute type codes. */
966#define BGP_ATTR_ORIGIN 1
967#define BGP_ATTR_AS_PATH 2
968#define BGP_ATTR_NEXT_HOP 3
969#define BGP_ATTR_MULTI_EXIT_DISC 4
970#define BGP_ATTR_LOCAL_PREF 5
971#define BGP_ATTR_ATOMIC_AGGREGATE 6
972#define BGP_ATTR_AGGREGATOR 7
973#define BGP_ATTR_COMMUNITIES 8
974#define BGP_ATTR_ORIGINATOR_ID 9
975#define BGP_ATTR_CLUSTER_LIST 10
976#define BGP_ATTR_DPA 11
977#define BGP_ATTR_ADVERTISER 12
978#define BGP_ATTR_RCID_PATH 13
979#define BGP_ATTR_MP_REACH_NLRI 14
980#define BGP_ATTR_MP_UNREACH_NLRI 15
981#define BGP_ATTR_EXT_COMMUNITIES 16
0b2aa3a0
PJ		 982#define BGP_ATTR_AS4_PATH 17
983#define BGP_ATTR_AS4_AGGREGATOR 18
41367172 984#define BGP_ATTR_AS_PATHLIMIT 21
f4c89855 985#define BGP_ATTR_ENCAP 23
57d187bc 986#define BGP_ATTR_LARGE_COMMUNITIES 32
c5a543b4 987#define BGP_ATTR_PREFIX_SID 40
65efcfce
LB		 988#if ENABLE_BGP_VNC
989#define BGP_ATTR_VNC 255
990#endif
718e3744 991
992/* BGP update origin. */
993#define BGP_ORIGIN_IGP 0
994#define BGP_ORIGIN_EGP 1
995#define BGP_ORIGIN_INCOMPLETE 2
996
997/* BGP notify message codes. */
998#define BGP_NOTIFY_HEADER_ERR 1
999#define BGP_NOTIFY_OPEN_ERR 2
1000#define BGP_NOTIFY_UPDATE_ERR 3
1001#define BGP_NOTIFY_HOLD_ERR 4
1002#define BGP_NOTIFY_FSM_ERR 5
1003#define BGP_NOTIFY_CEASE 6
1004#define BGP_NOTIFY_CAPABILITY_ERR 7
718e3744 1005
4b4e07d2
DT		 1006#define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0
1007
718e3744 1008/* BGP_NOTIFY_HEADER_ERR sub codes. */
1009#define BGP_NOTIFY_HEADER_NOT_SYNC 1
1010#define BGP_NOTIFY_HEADER_BAD_MESLEN 2
1011#define BGP_NOTIFY_HEADER_BAD_MESTYPE 3
718e3744 1012
1013/* BGP_NOTIFY_OPEN_ERR sub codes. */
14051b36 1014#define BGP_NOTIFY_OPEN_MALFORMED_ATTR 0
718e3744 1015#define BGP_NOTIFY_OPEN_UNSUP_VERSION 1
1016#define BGP_NOTIFY_OPEN_BAD_PEER_AS 2
1017#define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3
1018#define BGP_NOTIFY_OPEN_UNSUP_PARAM 4
1019#define BGP_NOTIFY_OPEN_AUTH_FAILURE 5
1020#define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6
1021#define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7
718e3744 1022
1023/* BGP_NOTIFY_UPDATE_ERR sub codes. */
1024#define BGP_NOTIFY_UPDATE_MAL_ATTR 1
1025#define BGP_NOTIFY_UPDATE_UNREC_ATTR 2
1026#define BGP_NOTIFY_UPDATE_MISS_ATTR 3
1027#define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4
1028#define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5
1029#define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6
1030#define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7
1031#define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8
1032#define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9
1033#define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10
1034#define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11
718e3744 1035
4b4e07d2 1036/* BGP_NOTIFY_CEASE sub codes (RFC 4486). */
718e3744 1037#define BGP_NOTIFY_CEASE_MAX_PREFIX 1
1038#define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2
1039#define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3
1040#define BGP_NOTIFY_CEASE_ADMIN_RESET 4
1041#define BGP_NOTIFY_CEASE_CONNECT_REJECT 5
1042#define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6
545acafb 1043#define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7
1044#define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8
718e3744 1045
1046/* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */
1047#define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1
1048#define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2
1049#define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3
718e3744 1050
1051/* BGP finite state machine status. */
1052#define Idle 1
1053#define Connect 2
1054#define Active 3
1055#define OpenSent 4
1056#define OpenConfirm 5
1057#define Established 6
ca058a30
PJ		 1058#define Clearing 7
1059#define Deleted 8
1060#define BGP_STATUS_MAX 9
718e3744 1061
1062/* BGP finite state machine events. */
1063#define BGP_Start 1
1064#define BGP_Stop 2
1065#define TCP_connection_open 3
1066#define TCP_connection_closed 4
1067#define TCP_connection_open_failed 5
1068#define TCP_fatal_error 6
1069#define ConnectRetry_timer_expired 7
1070#define Hold_Timer_expired 8
1071#define KeepAlive_timer_expired 9
1072#define Receive_OPEN_message 10
1073#define Receive_KEEPALIVE_message 11
1074#define Receive_UPDATE_message 12
1075#define Receive_NOTIFICATION_message 13
ca058a30
PJ		 1076#define Clearing_Completed 14
1077#define BGP_EVENTS_MAX 15
718e3744 1078
1079/* BGP timers default value. */
8efe88ea 1080/* note: the DFLT_ ones depend on compile-time "defaults" selection */
5ca5f1c8 1081#define BGP_INIT_START_TIMER 1
8efe88ea
DL		 1082#define BGP_DEFAULT_HOLDTIME DFLT_BGP_HOLDTIME
1083#define BGP_DEFAULT_KEEPALIVE DFLT_BGP_KEEPALIVE
12179ba3 1084#define BGP_DEFAULT_EBGP_ROUTEADV 0
1670355a 1085#define BGP_DEFAULT_IBGP_ROUTEADV 0
8efe88ea 1086#define BGP_DEFAULT_CONNECT_RETRY DFLT_BGP_TIMERS_CONNECT
718e3744 1087
1088/* BGP default local preference. */
1089#define BGP_DEFAULT_LOCAL_PREF 100
1090
3f9c7369
DS		 1091/* BGP default subgroup packet queue max . */
1092#define BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX 40
1093
538621f2 1094/* BGP graceful restart */
1095#define BGP_DEFAULT_RESTART_TIME 120
1096#define BGP_DEFAULT_STALEPATH_TIME 360
1097
718e3744 1098/* BGP uptime string length. */
1099#define BGP_UPTIME_LEN 25
1100
1101/* Default configuration settings for bgpd. */
1102#define BGP_VTY_PORT 2605
718e3744 1103#define BGP_DEFAULT_CONFIG "bgpd.conf"
1104
1105/* Check AS path loop when we send NLRI. */
1106/* #define BGP_SEND_ASPATH_CHECK */
1107
f14e6fdb
DS		 1108/* BGP Dynamic Neighbors feature */
1109#define BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT 100
1110#define BGP_DYNAMIC_NEIGHBORS_LIMIT_MIN 1
1111#define BGP_DYNAMIC_NEIGHBORS_LIMIT_MAX 5000
1112
718e3744 1113/* Flag for peer_clear_soft(). */
d62a17ae 1114enum bgp_clear_type {
1115 BGP_CLEAR_SOFT_NONE,
1116 BGP_CLEAR_SOFT_OUT,
1117 BGP_CLEAR_SOFT_IN,
1118 BGP_CLEAR_SOFT_BOTH,
1119 BGP_CLEAR_SOFT_IN_ORF_PREFIX
718e3744 1120};
1121
1122/* Macros. */
1123#define BGP_INPUT(P) ((P)->ibuf)
1124#define BGP_INPUT_PNT(P) (STREAM_PNT(BGP_INPUT(P)))
d62a17ae 1125#define BGP_IS_VALID_STATE_FOR_NOTIF(S) \
1126 (((S) == OpenSent) || ((S) == OpenConfirm) || ((S) == Established))
718e3744 1127
718e3744 1128/* BGP error codes. */
1129#define BGP_SUCCESS 0
1130#define BGP_ERR_INVALID_VALUE -1
1131#define BGP_ERR_INVALID_FLAG -2
1132#define BGP_ERR_INVALID_AS -3
1133#define BGP_ERR_INVALID_BGP -4
1134#define BGP_ERR_PEER_GROUP_MEMBER -5
1135#define BGP_ERR_MULTIPLE_INSTANCE_USED -6
c8560b44
DW		 1136#define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -7
1137#define BGP_ERR_PEER_GROUP_CANT_CHANGE -8
1138#define BGP_ERR_PEER_GROUP_MISMATCH -9
1139#define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -10
1140#define BGP_ERR_MULTIPLE_INSTANCE_NOT_SET -11
1141#define BGP_ERR_AS_MISMATCH -12
1142#define BGP_ERR_PEER_FLAG_CONFLICT -13
1143#define BGP_ERR_PEER_GROUP_SHUTDOWN -14
1144#define BGP_ERR_PEER_FILTER_CONFLICT -15
1145#define BGP_ERR_NOT_INTERNAL_PEER -16
1146#define BGP_ERR_REMOVE_PRIVATE_AS -17
1147#define BGP_ERR_AF_UNCONFIGURED -18
1148#define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -19
1149#define BGP_ERR_INSTANCE_MISMATCH -20
1150#define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -21
1151#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -22
1152#define BGP_ERR_TCPSIG_FAILED -23
1153#define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -24
1154#define BGP_ERR_NO_IBGP_WITH_TTLHACK -25
1155#define BGP_ERR_NO_INTERFACE_CONFIG -26
1156#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS -27
1157#define BGP_ERR_AS_OVERRIDE -28
1158#define BGP_ERR_INVALID_DYNAMIC_NEIGHBORS_LIMIT -29
1159#define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_EXISTS -30
1160#define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND -31
1161#define BGP_ERR_INVALID_FOR_DYNAMIC_PEER -32
1162#define BGP_ERR_MAX -33
63fa10b5 1163#define BGP_ERR_INVALID_FOR_DIRECT_PEER -34
9bedbb1e 1164#define BGP_ERR_PEER_SAFI_CONFLICT -35
718e3744 1165
3f9c7369
DS		 1166/*
1167 * Enumeration of different policy kinds a peer can be configured with.
1168 */
d62a17ae 1169typedef enum {
1170 BGP_POLICY_ROUTE_MAP,
1171 BGP_POLICY_FILTER_LIST,
1172 BGP_POLICY_PREFIX_LIST,
1173 BGP_POLICY_DISTRIBUTE_LIST,
3f9c7369
DS		 1174} bgp_policy_type_e;
1175
718e3744 1176extern struct bgp_master *bm;
37fe7731 1177extern unsigned int multipath_num;
718e3744 1178
718e3744 1179/* Prototypes. */
d62a17ae 1180extern void bgp_terminate(void);
1181extern void bgp_reset(void);
1182extern time_t bgp_clock(void);
1183extern void bgp_zclient_reset(void);
1184extern int bgp_nexthop_set(union sockunion *, union sockunion *,
1185 struct bgp_nexthop *, struct peer *);
1186extern struct bgp *bgp_get_default(void);
1187extern struct bgp *bgp_lookup(as_t, const char *);
1188extern struct bgp *bgp_lookup_by_name(const char *);
1189extern struct bgp *bgp_lookup_by_vrf_id(vrf_id_t);
1190extern struct peer *peer_lookup(struct bgp *, union sockunion *);
1191extern struct peer *peer_lookup_by_conf_if(struct bgp *, const char *);
04b6bdc0 1192extern struct peer *peer_lookup_by_hostname(struct bgp *, const char *);
d62a17ae 1193extern void bgp_peer_conf_if_to_su_update(struct peer *);
ffd0c037 1194extern int peer_group_listen_range_del(struct peer_group *, struct prefix *);
d62a17ae 1195extern struct peer_group *peer_group_lookup(struct bgp *, const char *);
1196extern struct peer_group *peer_group_get(struct bgp *, const char *);
1197extern struct peer *peer_create_bind_dynamic_neighbor(struct bgp *,
1198 union sockunion *,
1199 struct peer_group *);
1200extern struct prefix *
1201peer_group_lookup_dynamic_neighbor_range(struct peer_group *, struct prefix *);
1202extern struct peer_group *peer_group_lookup_dynamic_neighbor(struct bgp *,
1203 struct prefix *,
1204 struct prefix **);
1205extern struct peer *peer_lookup_dynamic_neighbor(struct bgp *,
1206 union sockunion *);
1207extern void peer_drop_dynamic_neighbor(struct peer *);
28066f4b
DS		 1208
1209/*
1210 * Peers are incredibly easy to memory leak
1211 * due to the various ways that they are actually used
1212 * Provide some functionality to debug locks and unlocks
1213 */
1214extern struct peer *peer_lock_with_caller(const char *, struct peer *);
1215extern struct peer *peer_unlock_with_caller(const char *, struct peer *);
1216#define peer_unlock(A) peer_unlock_with_caller(__FUNCTION__, (A))
1217#define peer_lock(B) peer_lock_with_caller(__FUNCTION__, (B))
1218
d62a17ae 1219extern bgp_peer_sort_t peer_sort(struct peer *peer);
1220extern int peer_active(struct peer *);
1221extern int peer_active_nego(struct peer *);
1222extern void bgp_recalculate_all_bestpaths(struct bgp *bgp);
a80beece 1223extern struct peer *peer_create(union sockunion *, const char *, struct bgp *,
d62a17ae 1224 as_t, as_t, int, afi_t, safi_t,
1225 struct peer_group *);
1226extern struct peer *peer_create_accept(struct bgp *);
1227extern void peer_xfer_config(struct peer *dst, struct peer *src);
1228extern char *peer_uptime(time_t, char *, size_t, u_char, json_object *);
856ca177 1229
d62a17ae 1230extern int bgp_config_write(struct vty *);
1231extern void bgp_config_write_family_header(struct vty *, afi_t, safi_t, int *);
6b0655a2 1232
d62a17ae 1233extern void bgp_master_init(struct thread_master *master);
718e3744 1234
d62a17ae 1235extern void bgp_init(void);
1236extern void bgp_route_map_init(void);
1237extern void bgp_session_reset(struct peer *);
718e3744 1238
d62a17ae 1239extern int bgp_option_set(int);
1240extern int bgp_option_unset(int);
1241extern int bgp_option_check(int);
718e3744 1242
d62a17ae 1243extern int bgp_get(struct bgp **, as_t *, const char *, enum bgp_instance_type);
1244extern void bgp_instance_up(struct bgp *);
1245extern void bgp_instance_down(struct bgp *);
1246extern int bgp_delete(struct bgp *);
718e3744 1247
d62a17ae 1248extern int bgp_flag_set(struct bgp *, int);
1249extern int bgp_flag_unset(struct bgp *, int);
1250extern int bgp_flag_check(struct bgp *, int);
718e3744 1251
d62a17ae 1252extern void bgp_lock(struct bgp *);
1253extern void bgp_unlock(struct bgp *);
0088b5dc 1254
d62a17ae 1255extern void bgp_router_id_zebra_bump(vrf_id_t, const struct prefix *);
1256extern int bgp_router_id_static_set(struct bgp *, struct in_addr);
718e3744 1257
d62a17ae 1258extern int bgp_cluster_id_set(struct bgp *, struct in_addr *);
1259extern int bgp_cluster_id_unset(struct bgp *);
718e3744 1260
d62a17ae 1261extern int bgp_confederation_id_set(struct bgp *, as_t);
1262extern int bgp_confederation_id_unset(struct bgp *);
1263extern int bgp_confederation_peers_check(struct bgp *, as_t);
718e3744 1264
d62a17ae 1265extern int bgp_confederation_peers_add(struct bgp *, as_t);
1266extern int bgp_confederation_peers_remove(struct bgp *, as_t);
718e3744 1267
d62a17ae 1268extern int bgp_timers_set(struct bgp *, u_int32_t keepalive,
1269 u_int32_t holdtime);
1270extern int bgp_timers_unset(struct bgp *);
718e3744 1271
d62a17ae 1272extern int bgp_default_local_preference_set(struct bgp *, u_int32_t);
1273extern int bgp_default_local_preference_unset(struct bgp *);
718e3744 1274
d62a17ae 1275extern int bgp_default_subgroup_pkt_queue_max_set(struct bgp *bgp, u_int32_t);
1276extern int bgp_default_subgroup_pkt_queue_max_unset(struct bgp *bgp);
3f9c7369 1277
d62a17ae 1278extern int bgp_listen_limit_set(struct bgp *, int);
1279extern int bgp_listen_limit_unset(struct bgp *);
f14e6fdb 1280
d62a17ae 1281extern int bgp_update_delay_active(struct bgp *);
1282extern int bgp_update_delay_configured(struct bgp *);
1283extern void peer_as_change(struct peer *, as_t, int);
1284extern int peer_remote_as(struct bgp *, union sockunion *, const char *, as_t *,
1285 int, afi_t, safi_t);
1286extern int peer_group_remote_as(struct bgp *, const char *, as_t *, int);
1287extern int peer_delete(struct peer *peer);
1288extern int peer_group_delete(struct peer_group *);
1289extern int peer_group_remote_as_delete(struct peer_group *);
f14e6fdb 1290extern int peer_group_listen_range_add(struct peer_group *, struct prefix *);
718e3744 1291
d62a17ae 1292extern int peer_activate(struct peer *, afi_t, safi_t);
1293extern int peer_deactivate(struct peer *, afi_t, safi_t);
1294extern int peer_afc_set(struct peer *, afi_t, safi_t, int);
718e3744 1295
d62a17ae 1296extern int peer_group_bind(struct bgp *, union sockunion *, struct peer *,
1297 struct peer_group *, as_t *);
1298extern int peer_group_unbind(struct bgp *, struct peer *, struct peer_group *);
718e3744 1299
d62a17ae 1300extern int peer_flag_set(struct peer *, u_int32_t);
1301extern int peer_flag_unset(struct peer *, u_int32_t);
718e3744 1302
d62a17ae 1303extern int peer_af_flag_set(struct peer *, afi_t, safi_t, u_int32_t);
1304extern int peer_af_flag_unset(struct peer *, afi_t, safi_t, u_int32_t);
1305extern int peer_af_flag_check(struct peer *, afi_t, safi_t, u_int32_t);
718e3744 1306
d62a17ae 1307extern int peer_ebgp_multihop_set(struct peer *, int);
1308extern int peer_ebgp_multihop_unset(struct peer *);
1309extern int is_ebgp_multihop_configured(struct peer *peer);
718e3744 1310
d62a17ae 1311extern int peer_description_set(struct peer *, const char *);
1312extern int peer_description_unset(struct peer *);
718e3744 1313
d62a17ae 1314extern int peer_update_source_if_set(struct peer *, const char *);
1315extern int peer_update_source_addr_set(struct peer *, const union sockunion *);
1316extern int peer_update_source_unset(struct peer *);
718e3744 1317
d62a17ae 1318extern int peer_default_originate_set(struct peer *, afi_t, safi_t,
1319 const char *);
1320extern int peer_default_originate_unset(struct peer *, afi_t, safi_t);
718e3744 1321
d62a17ae 1322extern int peer_port_set(struct peer *, u_int16_t);
1323extern int peer_port_unset(struct peer *);
718e3744 1324
d62a17ae 1325extern int peer_weight_set(struct peer *, afi_t, safi_t, u_int16_t);
1326extern int peer_weight_unset(struct peer *, afi_t, safi_t);
718e3744 1327
d62a17ae 1328extern int peer_timers_set(struct peer *, u_int32_t keepalive,
1329 u_int32_t holdtime);
1330extern int peer_timers_unset(struct peer *);
718e3744 1331
d62a17ae 1332extern int peer_timers_connect_set(struct peer *, u_int32_t);
1333extern int peer_timers_connect_unset(struct peer *);
718e3744 1334
d62a17ae 1335extern int peer_advertise_interval_set(struct peer *, u_int32_t);
1336extern int peer_advertise_interval_unset(struct peer *);
718e3744 1337
d62a17ae 1338extern void peer_interface_set(struct peer *, const char *);
1339extern void peer_interface_unset(struct peer *);
718e3744 1340
d62a17ae 1341extern int peer_distribute_set(struct peer *, afi_t, safi_t, int, const char *);
1342extern int peer_distribute_unset(struct peer *, afi_t, safi_t, int);
718e3744 1343
d62a17ae 1344extern int peer_allowas_in_set(struct peer *, afi_t, safi_t, int, int);
1345extern int peer_allowas_in_unset(struct peer *, afi_t, safi_t);
718e3744 1346
d62a17ae 1347extern int peer_local_as_set(struct peer *, as_t, int, int);
1348extern int peer_local_as_unset(struct peer *);
718e3744 1349
d62a17ae 1350extern int peer_prefix_list_set(struct peer *, afi_t, safi_t, int,
1351 const char *);
1352extern int peer_prefix_list_unset(struct peer *, afi_t, safi_t, int);
718e3744 1353
d62a17ae 1354extern int peer_aslist_set(struct peer *, afi_t, safi_t, int, const char *);
1355extern int peer_aslist_unset(struct peer *, afi_t, safi_t, int);
718e3744 1356
d62a17ae 1357extern int peer_route_map_set(struct peer *, afi_t, safi_t, int, const char *);
1358extern int peer_route_map_unset(struct peer *, afi_t, safi_t, int);
718e3744 1359
d62a17ae 1360extern int peer_unsuppress_map_set(struct peer *, afi_t, safi_t, const char *);
0df7c91f 1361
d62a17ae 1362extern int peer_password_set(struct peer *, const char *);
1363extern int peer_password_unset(struct peer *);
0df7c91f 1364
d62a17ae 1365extern int peer_unsuppress_map_unset(struct peer *, afi_t, safi_t);
718e3744 1366
d62a17ae 1367extern int peer_maximum_prefix_set(struct peer *, afi_t, safi_t, u_int32_t,
1368 u_char, int, u_int16_t);
1369extern int peer_maximum_prefix_unset(struct peer *, afi_t, safi_t);
718e3744 1370
d62a17ae 1371extern int peer_clear(struct peer *, struct listnode **);
1372extern int peer_clear_soft(struct peer *, afi_t, safi_t, enum bgp_clear_type);
93406d87 1373
d62a17ae 1374extern int peer_ttl_security_hops_set(struct peer *, int);
1375extern int peer_ttl_security_hops_unset(struct peer *);
fa411a21 1376
d62a17ae 1377extern int peer_tx_shutdown_message_set(struct peer *, const char *msg);
1378extern int peer_tx_shutdown_message_unset(struct peer *);
73d70fa6 1379
d62a17ae 1380extern int bgp_route_map_update_timer(struct thread *thread);
518f0eb1 1381extern void bgp_route_map_terminate(void);
16286195 1382
d62a17ae 1383extern int peer_cmp(struct peer *p1, struct peer *p2);
3f9c7369 1384
5c525538 1385extern int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi, iana_safi_t pkt_safi,
d62a17ae 1386 afi_t *afi, safi_t *safi);
1387extern int bgp_map_afi_safi_int2iana(afi_t afi, safi_t safi,
5c525538 1388 iana_afi_t *pkt_afi, iana_safi_t *pkt_safi);
9cabb64b 1389
d62a17ae 1390extern struct peer_af *peer_af_create(struct peer *, afi_t, safi_t);
1391extern struct peer_af *peer_af_find(struct peer *, afi_t, safi_t);
1392extern int peer_af_delete(struct peer *, afi_t, safi_t);
3f9c7369 1393
ffd0c037
DS		 1394extern void bgp_close(void);
1395
d62a17ae 1396static inline int afindex(afi_t afi, safi_t safi)
3f9c7369 1397{
d62a17ae 1398 switch (afi) {
1399 case AFI_IP:
1400 switch (safi) {
1401 case SAFI_UNICAST:
1402 return BGP_AF_IPV4_UNICAST;
1403 break;
1404 case SAFI_MULTICAST:
1405 return BGP_AF_IPV4_MULTICAST;
1406 break;
1407 case SAFI_LABELED_UNICAST:
1408 return BGP_AF_IPV4_LBL_UNICAST;
1409 break;
1410 case SAFI_MPLS_VPN:
1411 return BGP_AF_IPV4_VPN;
1412 break;
1413 case SAFI_ENCAP:
1414 return BGP_AF_IPV4_ENCAP;
1415 break;
1416 default:
1417 return BGP_AF_MAX;
1418 break;
1419 }
1420 break;
1421 case AFI_IP6:
1422 switch (safi) {
1423 case SAFI_UNICAST:
1424 return BGP_AF_IPV6_UNICAST;
1425 break;
1426 case SAFI_MULTICAST:
1427 return BGP_AF_IPV6_MULTICAST;
1428 break;
1429 case SAFI_LABELED_UNICAST:
1430 return BGP_AF_IPV6_LBL_UNICAST;
1431 break;
1432 case SAFI_MPLS_VPN:
1433 return BGP_AF_IPV6_VPN;
1434 break;
1435 case SAFI_ENCAP:
1436 return BGP_AF_IPV6_ENCAP;
1437 break;
1438 default:
1439 return BGP_AF_MAX;
1440 break;
1441 }
1442 break;
1443 case AFI_L2VPN:
1444 switch (safi) {
1445 case SAFI_EVPN:
1446 return BGP_AF_L2VPN_EVPN;
1447 break;
1448 default:
1449 return BGP_AF_MAX;
1450 break;
1451 }
3f9c7369 1452 default:
d62a17ae 1453 return BGP_AF_MAX;
1454 break;
3f9c7369 1455 }
3f9c7369
DS		 1456}
1457
c8560b44 1458/* If the peer is not a peer-group but is bound to a peer-group return 1 */
d62a17ae 1459static inline int peer_group_active(struct peer *peer)
3f9c7369 1460{
d62a17ae 1461 if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) && peer->group)
1462 return 1;
1463 return 0;
3f9c7369
DS		 1464}
1465
1466/* If peer is negotiated at least one address family return 1. */
d62a17ae 1467static inline int peer_afi_active_nego(const struct peer *peer, afi_t afi)
3f9c7369 1468{
d62a17ae 1469 if (peer->afc_nego[afi][SAFI_UNICAST]
1470 || peer->afc_nego[afi][SAFI_MULTICAST]
1471 || peer->afc_nego[afi][SAFI_LABELED_UNICAST]
1472 || peer->afc_nego[afi][SAFI_MPLS_VPN]
1473 || peer->afc_nego[afi][SAFI_ENCAP]
1474 || peer->afc_nego[afi][SAFI_EVPN])
1475 return 1;
1476 return 0;
3f9c7369
DS		 1477}
1478
f14e6fdb 1479/* If at least one address family activated for group, return 1. */
d62a17ae 1480static inline int peer_group_af_configured(struct peer_group *group)
f14e6fdb 1481{
d62a17ae 1482 struct peer *peer = group->conf;
1483
1484 if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST]
1485 || peer->afc[AFI_IP][SAFI_LABELED_UNICAST]
1486 || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP]
1487 || peer->afc[AFI_IP6][SAFI_UNICAST]
1488 || peer->afc[AFI_IP6][SAFI_MULTICAST]
1489 || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST]
1490 || peer->afc[AFI_IP6][SAFI_MPLS_VPN]
1491 || peer->afc[AFI_IP6][SAFI_ENCAP] || peer->afc[AFI_IP6][SAFI_EVPN])
1492 return 1;
1493 return 0;
f14e6fdb
DS		 1494}
1495
d62a17ae 1496static inline char *timestamp_string(time_t ts)
3f9c7369 1497{
d62a17ae 1498 time_t tbuf;
1499 tbuf = time(NULL) - (bgp_clock() - ts);
1500 return ctime(&tbuf);
3f9c7369
DS		 1501}
1502
d62a17ae 1503static inline int peer_established(struct peer *peer)
3f9c7369 1504{
d62a17ae 1505 if (peer->status == Established)
1506 return 1;
1507 return 0;
3f9c7369
DS		 1508}
1509
d62a17ae 1510static inline int peer_dynamic_neighbor(struct peer *peer)
f14e6fdb 1511{
d62a17ae 1512 return (CHECK_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR)) ? 1 : 0;
f14e6fdb
DS		 1513}
1514
d62a17ae 1515static inline int peer_cap_enhe(struct peer *peer, afi_t afi, safi_t safi)
8a92a8a0 1516{
d62a17ae 1517 return (CHECK_FLAG(peer->af_cap[afi][safi], PEER_CAP_ENHE_AF_NEGO));
8a92a8a0
DS		 1518}
1519
d1be1f08 1520/* Lookup VRF for BGP instance based on its type. */
d62a17ae 1521static inline struct vrf *bgp_vrf_lookup_by_instance_type(struct bgp *bgp)
d1be1f08 1522{
d62a17ae 1523 struct vrf *vrf;
d1be1f08 1524
d62a17ae 1525 if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)
1526 vrf = vrf_lookup_by_id(VRF_DEFAULT);
1527 else if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF)
1528 vrf = vrf_lookup_by_name(bgp->name);
1529 else
1530 vrf = NULL;
d1be1f08 1531
d62a17ae 1532 return vrf;
d1be1f08 1533}
1534
1535/* Link BGP instance to VRF. */
d62a17ae 1536static inline void bgp_vrf_link(struct bgp *bgp, struct vrf *vrf)
d1be1f08 1537{
d62a17ae 1538 bgp->vrf_id = vrf->vrf_id;
1539 if (vrf->info != (void *)bgp) {
1540 bgp_lock(bgp);
1541 vrf->info = (void *)bgp;
1542 }
d1be1f08 1543}
1544
1545/* Unlink BGP instance from VRF. */
d62a17ae 1546static inline void bgp_vrf_unlink(struct bgp *bgp, struct vrf *vrf)
d1be1f08 1547{
d62a17ae 1548 if (vrf->info == (void *)bgp) {
1549 vrf->info = NULL;
1550 bgp_unlock(bgp);
1551 }
1552 bgp->vrf_id = VRF_UNKNOWN;
d1be1f08 1553}
1554
d62a17ae 1555extern void bgp_update_redist_vrf_bitmaps(struct bgp *, vrf_id_t);
65efcfce
LB		 1556
1557/* For benefit of rfapi */
d62a17ae 1558extern struct peer *peer_new(struct bgp *bgp);
65efcfce 1559
00d252cb 1560#endif /* _QUAGGA_BGPD_H */
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