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