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Merge remote-tracking branch 'origin/stable/3.0'
[mirror_frr.git] / bgpd / bgpd.h
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718e3744 1/* BGP message definition header.
2 Copyright (C) 1996, 97, 98, 99, 2000 Kunihiro Ishiguro
3
4This file is part of GNU Zebra.
5
6GNU Zebra is free software; you can redistribute it and/or modify it
7under the terms of the GNU General Public License as published by the
8Free Software Foundation; either version 2, or (at your option) any
9later version.
10
11GNU Zebra is distributed in the hope that it will be useful, but
12WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with GNU Zebra; see the file COPYING. If not, write to the Free
18Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
1902111-1307, USA. */
20
00d252cb 21#ifndef _QUAGGA_BGPD_H
22#define _QUAGGA_BGPD_H
23
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"
718e3744 36
04b6bdc0
DW		 37#define BGP_MAX_HOSTNAME 64 /* Linux max, is larger than most other sys */
38
5c81b96a 39/* Default interval for IPv6 RAs when triggered by BGP unnumbered neighbor. */
40#define BGP_UNNUM_DEFAULT_RA_INTERVAL 10
41
3f9c7369
DS		 42struct update_subgroup;
43struct bpacket;
44
0299c004
DS		 45/*
46 * Allow the neighbor XXXX remote-as to take internal or external
47 * AS_SPECIFIED is zero to auto-inherit original non-feature/enhancement behavior
48 * in the system.
49 */
50enum {
51 AS_UNSPECIFIED = 0,
52 AS_SPECIFIED,
53 AS_INTERNAL,
54 AS_EXTERNAL,
55};
56
718e3744 57/* Typedef BGP specific types. */
0b2aa3a0
PJ		 58typedef u_int32_t as_t;
59typedef u_int16_t as16_t; /* we may still encounter 16 Bit asnums */
718e3744 60typedef u_int16_t bgp_size_t;
61
3f9c7369
DS		 62#define max(a,b) \
63 ({ __typeof__ (a) _a = (a); \
64 __typeof__ (b) _b = (b); \
65 _a > _b ? _a : _b; })
66
67enum bgp_af_index
68{
69 BGP_AF_START,
70 BGP_AF_IPV4_UNICAST = BGP_AF_START,
71 BGP_AF_IPV4_MULTICAST,
72 BGP_AF_IPV4_VPN,
73 BGP_AF_IPV6_UNICAST,
74 BGP_AF_IPV6_MULTICAST,
6407da5a 75 BGP_AF_IPV6_VPN,
587ff0fd
LB		 76 BGP_AF_IPV4_ENCAP,
77 BGP_AF_IPV6_ENCAP,
2c9ba7c7 78 BGP_AF_L2VPN_EVPN,
cd1964ff
DS		 79 BGP_AF_IPV4_LBL_UNICAST,
80 BGP_AF_IPV6_LBL_UNICAST,
3f9c7369
DS		 81 BGP_AF_MAX
82};
83
84#define AF_FOREACH(af) \
85 for ((af) = BGP_AF_START; (af) < BGP_AF_MAX; (af)++)
86
87#define FOREACH_AFI_SAFI(afi, safi) \
88 for (afi = AFI_IP; afi < AFI_MAX; afi++) \
89 for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++)
90
718e3744 91/* BGP master for system wide configurations and variables. */
92struct bgp_master
93{
94 /* BGP instance list. */
95 struct list *bgp;
96
87d4a781
DS		 97 /* BGP thread master. */
98 struct thread_master *master;
99
200df115 100 /* work queues */
101 struct work_queue *process_main_queue;
200df115 102
0df7c91f
PJ		 103 /* Listening sockets */
104 struct list *listen_sockets;
105
718e3744 106 /* BGP port number. */
107 u_int16_t port;
108
3a02d1f7
PJ		 109 /* Listener address */
110 char *address;
111
718e3744 112 /* BGP start time. */
113 time_t start_time;
114
115 /* Various BGP global configuration. */
116 u_char options;
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
f43e655e
RW		 122 uint64_t updgrp_idspace;
123 uint64_t subgrp_idspace;
5fe9f963 124
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#define RMAP_DEFAULT_UPDATE_TIMER 5 /* disabled by default */
19df7279
DL		 129
130 QOBJ_FIELDS
718e3744 131};
19df7279 132DECLARE_QOBJ_TYPE(bgp_master)
718e3744 133
73ac8160
DS		 134/* BGP route-map structure. */
135struct bgp_rmap
136{
137 char *name;
138 struct route_map *map;
139};
140
7c8ff89e
DS		 141struct bgp_redist
142{
143 u_short instance;
144
145 /* BGP redistribute metric configuration. */
146 u_char redist_metric_flag;
147 u_int32_t redist_metric;
148
149 /* BGP redistribute route-map. */
150 struct bgp_rmap rmap;
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 */
161enum bgp_instance_type
162{
163 BGP_INSTANCE_TYPE_DEFAULT,
164 BGP_INSTANCE_TYPE_VRF,
165 BGP_INSTANCE_TYPE_VIEW
166};
167
718e3744 168/* BGP instance structure. */
169struct bgp
170{
171 /* AS number of this BGP instance. */
172 as_t as;
173
174 /* Name of this BGP instance. */
175 char *name;
6aeb9e78 176
ad4cbda1 177 /* Type of instance and VRF id. */
178 enum bgp_instance_type inst_type;
6aeb9e78 179 vrf_id_t vrf_id;
200df115 180
0088b5dc
SH		 181 /* Reference count to allow peer_delete to finish after bgp_delete */
182 int lock;
183
718e3744 184 /* Self peer. */
185 struct peer *peer_self;
186
187 /* BGP peer. */
188 struct list *peer;
dd793e4a 189 struct hash *peerhash;
718e3744 190
191 /* BGP peer group. */
192 struct list *group;
193
f14e6fdb
DS		 194 /* The maximum number of BGP dynamic neighbors that can be created */
195 int dynamic_neighbors_limit;
196
197 /* The current number of BGP dynamic neighbors */
198 int dynamic_neighbors_count;
199
3f9c7369
DS		 200 struct hash *update_groups[BGP_AF_MAX];
201
202 /*
203 * Global statistics for update groups.
204 */
205 struct {
206 u_int32_t join_events;
207 u_int32_t prune_events;
208 u_int32_t merge_events;
209 u_int32_t split_events;
210 u_int32_t updgrp_switch_events;
211 u_int32_t peer_refreshes_combined;
212 u_int32_t adj_count;
213 u_int32_t merge_checks_triggered;
214
215 u_int32_t updgrps_created;
216 u_int32_t updgrps_deleted;
217 u_int32_t subgrps_created;
218 u_int32_t subgrps_deleted;
219 } update_group_stats;
220
718e3744 221 /* BGP configuration. */
222 u_int16_t config;
c2d58d6d 223#define BGP_CONFIG_CLUSTER_ID (1 << 0)
224#define BGP_CONFIG_CONFEDERATION (1 << 1)
718e3744 225
226 /* BGP router identifier. */
227 struct in_addr router_id;
18a6dce6 228 struct in_addr router_id_static;
6aeb9e78 229 struct in_addr router_id_zebra;
718e3744 230
231 /* BGP route reflector cluster ID. */
232 struct in_addr cluster_id;
233
234 /* BGP confederation information. */
235 as_t confed_id;
236 as_t *confed_peers;
237 int confed_peers_cnt;
238
abc920f8
DS		 239 struct thread *t_startup; /* start-up timer on only once at the beginning */
240
241 u_int32_t v_maxmed_onstartup; /* Duration of max-med on start-up */
242#define BGP_MAXMED_ONSTARTUP_UNCONFIGURED 0 /* 0 means off, its the default */
243 u_int32_t maxmed_onstartup_value; /* Max-med value when active on start-up */
244 struct thread *t_maxmed_onstartup; /* non-null when max-med onstartup is on */
245 u_char maxmed_onstartup_over; /* Flag to make it effective only once */
246
247 u_char v_maxmed_admin; /* 1/0 if max-med administrative is on/off */
248#define BGP_MAXMED_ADMIN_UNCONFIGURED 0 /* Off by default */
249 u_int32_t maxmed_admin_value; /* Max-med value when administrative in on */
250#define BGP_MAXMED_VALUE_DEFAULT 4294967294 /* Maximum by default */
251
252 u_char maxmed_active; /* 1/0 if max-med is active or not */
253 u_int32_t maxmed_value; /* Max-med value when its active */
fe7d2a48 254
f188f2c4
DS		 255 /* BGP update delay on startup */
256 struct thread *t_update_delay;
257 struct thread *t_establish_wait;
258 u_char update_delay_over;
4a16ae86
DS		 259 u_char main_zebra_update_hold;
260 u_char main_peers_update_hold;
f188f2c4
DS		 261 u_int16_t v_update_delay;
262 u_int16_t v_establish_wait;
263 char update_delay_begin_time[64];
264 char update_delay_end_time[64];
4a16ae86
DS		 265 char update_delay_zebra_resume_time[64];
266 char update_delay_peers_resume_time[64];
f188f2c4
DS		 267 u_int32_t established;
268 u_int32_t restarted_peers;
269 u_int32_t implicit_eors;
270 u_int32_t explicit_eors;
271#define BGP_UPDATE_DELAY_DEF 0
272#define BGP_UPDATE_DELAY_MIN 0
273#define BGP_UPDATE_DELAY_MAX 3600
274
718e3744 275 /* BGP flags. */
8bd9d948 276 u_int32_t flags;
718e3744 277#define BGP_FLAG_ALWAYS_COMPARE_MED (1 << 0)
278#define BGP_FLAG_DETERMINISTIC_MED (1 << 1)
279#define BGP_FLAG_MED_MISSING_AS_WORST (1 << 2)
280#define BGP_FLAG_MED_CONFED (1 << 3)
281#define BGP_FLAG_NO_DEFAULT_IPV4 (1 << 4)
282#define BGP_FLAG_NO_CLIENT_TO_CLIENT (1 << 5)
283#define BGP_FLAG_ENFORCE_FIRST_AS (1 << 6)
284#define BGP_FLAG_COMPARE_ROUTER_ID (1 << 7)
285#define BGP_FLAG_ASPATH_IGNORE (1 << 8)
286#define BGP_FLAG_IMPORT_CHECK (1 << 9)
287#define BGP_FLAG_NO_FAST_EXT_FAILOVER (1 << 10)
848973c7 288#define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1 << 11)
538621f2 289#define BGP_FLAG_GRACEFUL_RESTART (1 << 12)
6811845b 290#define BGP_FLAG_ASPATH_CONFED (1 << 13)
2fdd455c 291#define BGP_FLAG_ASPATH_MULTIPATH_RELAX (1 << 14)
8bd9d948 292#define BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY (1 << 15)
907f92c8 293#define BGP_FLAG_DISABLE_NH_CONNECTED_CHK (1 << 16)
219178b6 294#define BGP_FLAG_MULTIPATH_RELAX_AS_SET (1 << 17)
078430f6 295#define BGP_FLAG_FORCE_STATIC_PROCESS (1 << 18)
5623e905 296#define BGP_FLAG_SHOW_HOSTNAME (1 << 19)
6a9a3cde 297#define BGP_FLAG_GR_PRESERVE_FWD (1 << 20)
718e3744 298
299 /* BGP Per AF flags */
300 u_int16_t af_flags[AFI_MAX][SAFI_MAX];
301#define BGP_CONFIG_DAMPENING (1 << 0)
302
6aeb9e78
DS		 303 /* Route table for next-hop lookup cache. */
304 struct bgp_table *nexthop_cache_table[AFI_MAX];
305
306 /* Route table for import-check */
307 struct bgp_table *import_check_table[AFI_MAX];
308
309 struct bgp_table *connected_table[AFI_MAX];
310
311 struct hash *address_hash;
312
718e3744 313 /* Static route configuration. */
314 struct bgp_table *route[AFI_MAX][SAFI_MAX];
315
316 /* Aggregate address configuration. */
317 struct bgp_table *aggregate[AFI_MAX][SAFI_MAX];
318
319 /* BGP routing information base. */
320 struct bgp_table *rib[AFI_MAX][SAFI_MAX];
321
73ac8160
DS		 322 /* BGP table route-map. */
323 struct bgp_rmap table_map[AFI_MAX][SAFI_MAX];
324
718e3744 325 /* BGP redistribute configuration. */
7c8ff89e 326 struct list *redist[AFI_MAX][ZEBRA_ROUTE_MAX];
718e3744 327
0de4848d
DS		 328 /* timer to re-evaluate neighbor default-originate route-maps */
329 struct thread *t_rmap_def_originate_eval;
330#define RMAP_DEFAULT_ORIGINATE_EVAL_TIMER 5
331
718e3744 332 /* BGP distance configuration. */
734b349e
MZ		 333 u_char distance_ebgp[AFI_MAX][SAFI_MAX];
334 u_char distance_ibgp[AFI_MAX][SAFI_MAX];
335 u_char distance_local[AFI_MAX][SAFI_MAX];
718e3744 336
337 /* BGP default local-preference. */
338 u_int32_t default_local_pref;
339
3f9c7369
DS		 340 /* BGP default subgroup pkt queue max */
341 u_int32_t default_subgroup_pkt_queue_max;
342
718e3744 343 /* BGP default timer. */
344 u_int32_t default_holdtime;
345 u_int32_t default_keepalive;
538621f2 346
347 /* BGP graceful restart */
93406d87 348 u_int32_t restart_time;
349 u_int32_t stalepath_time;
165b5fff
JB		 350
351 /* Maximum-paths configuration */
352 struct bgp_maxpaths_cfg {
353 u_int16_t maxpaths_ebgp;
354 u_int16_t maxpaths_ibgp;
5e242b0d
DS		 355 u_int16_t ibgp_flags;
356#define BGP_FLAG_IBGP_MULTIPATH_SAME_CLUSTERLEN (1 << 0)
165b5fff 357 } maxpaths[AFI_MAX][SAFI_MAX];
cb1faec9
DS		 358
359 u_int32_t wpkt_quanta; /* per peer packet quanta to write */
3f9c7369 360 u_int32_t coalesce_time;
adbac85e
DW		 361
362 u_int32_t addpath_tx_id;
363 int addpath_tx_used[AFI_MAX][SAFI_MAX];
65efcfce
LB		 364
365#if ENABLE_BGP_VNC
366 struct rfapi_cfg *rfapi_cfg;
367 struct rfapi *rfapi;
368#endif
19df7279
DL		 369
370 QOBJ_FIELDS
718e3744 371};
19df7279 372DECLARE_QOBJ_TYPE(bgp)
718e3744 373
2a3d5731 374#define BGP_ROUTE_ADV_HOLD(bgp) (bgp->main_peers_update_hold)
d889623f 375
ad4cbda1 376#define IS_BGP_INST_KNOWN_TO_ZEBRA(bgp) \
377 (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT || \
5c81a5f3 378 (bgp->inst_type == BGP_INSTANCE_TYPE_VRF && bgp->vrf_id != VRF_UNKNOWN))
ad4cbda1 379
718e3744 380/* BGP peer-group support. */
381struct peer_group
382{
383 /* Name of the peer-group. */
384 char *name;
385
386 /* Pointer to BGP. */
387 struct bgp *bgp;
388
389 /* Peer-group client list. */
390 struct list *peer;
391
f14e6fdb
DS		 392 /** Dynamic neighbor listening ranges */
393 struct list *listen_range[AFI_MAX];
394
718e3744 395 /* Peer-group config */
396 struct peer *conf;
397};
398
399/* BGP Notify message format. */
400struct bgp_notify
401{
402 u_char code;
403 u_char subcode;
404 char *data;
405 bgp_size_t length;
38de8d02 406 u_char *raw_data;
718e3744 407};
408
409/* Next hop self address. */
410struct bgp_nexthop
411{
412 struct interface *ifp;
413 struct in_addr v4;
718e3744 414 struct in6_addr v6_global;
415 struct in6_addr v6_local;
718e3744 416};
417
a82478b9
DS		 418/* BGP addpath values */
419#define BGP_ADDPATH_RX 1
420#define BGP_ADDPATH_TX 2
421#define BGP_ADDPATH_ID_LEN 4
422
adbac85e
DW		 423#define BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE 1
424
718e3744 425/* BGP router distinguisher value. */
426#define BGP_RD_SIZE 8
427
428struct bgp_rd
429{
430 u_char val[BGP_RD_SIZE];
431};
432
2a3d5731
DW		 433#define RMAP_IN 0
434#define RMAP_OUT 1
435#define RMAP_MAX 2
fee0f4c6 436
65efcfce
LB		 437#include "filter.h"
438
718e3744 439/* BGP filter structure. */
440struct bgp_filter
441{
442 /* Distribute-list. */
443 struct
444 {
445 char *name;
446 struct access_list *alist;
447 } dlist[FILTER_MAX];
448
449 /* Prefix-list. */
450 struct
451 {
452 char *name;
453 struct prefix_list *plist;
454 } plist[FILTER_MAX];
455
456 /* Filter-list. */
457 struct
458 {
459 char *name;
460 struct as_list *aslist;
461 } aslist[FILTER_MAX];
462
463 /* Route-map. */
464 struct
465 {
466 char *name;
467 struct route_map *map;
fee0f4c6 468 } map[RMAP_MAX];
718e3744 469
470 /* Unsuppress-map. */
471 struct
472 {
473 char *name;
474 struct route_map *map;
475 } usmap;
476};
477
6d85b15b
JBD		 478/* IBGP/EBGP identifier. We also have a CONFED peer, which is to say,
479 a peer who's AS is part of our Confederation. */
480typedef enum
481{
482 BGP_PEER_IBGP = 1,
483 BGP_PEER_EBGP,
484 BGP_PEER_INTERNAL,
485 BGP_PEER_CONFED,
486} bgp_peer_sort_t;
487
d6661008
DS		 488/* BGP message header and packet size. */
489#define BGP_MARKER_SIZE 16
490#define BGP_HEADER_SIZE 19
491#define BGP_MAX_PACKET_SIZE 4096
0a91ff55 492#define BGP_MAX_PACKET_SIZE_OVERFLOW 1024
d6661008 493
3f9c7369
DS		 494/*
495 * Trigger delay for bgp_announce_route().
496 */
497#define BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS 100
498#define BGP_ANNOUNCE_ROUTE_DELAY_MS 500
499
500struct peer_af
501{
502 /* back pointer to the peer */
503 struct peer *peer;
504
505 /* which subgroup the peer_af belongs to */
506 struct update_subgroup *subgroup;
507
508 /* for being part of an update subgroup's peer list */
509 LIST_ENTRY(peer_af) subgrp_train;
510
511 /* for being part of a packet's peer list */
512 LIST_ENTRY(peer_af) pkt_train;
513
514 struct bpacket *next_pkt_to_send;
515
516 /*
517 * Trigger timer for bgp_announce_route().
518 */
519 struct thread *t_announce_route;
520
521 afi_t afi;
522 safi_t safi;
523 int afid;
524};
525
718e3744 526/* BGP neighbor structure. */
527struct peer
528{
529 /* BGP structure. */
530 struct bgp *bgp;
531
200df115 532 /* reference count, primarily to allow bgp_process'ing of route_node's
533 * to be done after a struct peer is deleted.
534 *
535 * named 'lock' for hysterical reasons within Quagga.
536 */
537 int lock;
538
718e3744 539 /* BGP peer group. */
540 struct peer_group *group;
f43e655e 541 uint64_t version[AFI_MAX][SAFI_MAX];
3f9c7369
DS		 542
543 /* BGP peer_af structures, per configured AF on this peer */
544 struct peer_af *peer_af_array[BGP_AF_MAX];
718e3744 545
546 /* Peer's remote AS number. */
0299c004
DS		 547 int as_type;
548 as_t as;
718e3744 549
550 /* Peer's local AS number. */
551 as_t local_as;
552
6d85b15b
JBD		 553 bgp_peer_sort_t sort;
554
718e3744 555 /* Peer's Change local AS number. */
556 as_t change_local_as;
557
558 /* Remote router ID. */
559 struct in_addr remote_id;
560
561 /* Local router ID. */
562 struct in_addr local_id;
563
564 /* Packet receive and send buffer. */
565 struct stream *ibuf;
566 struct stream_fifo *obuf;
567 struct stream *work;
568
8c71e481
PM		 569 /* We use a separate stream to encode MP_REACH_NLRI for efficient
570 * NLRI packing. peer->work stores all the other attributes. The
571 * actual packet is then constructed by concatenating the two.
572 */
573 struct stream *scratch;
574
1ff9a340
DS		 575 /* the doppelganger peer structure, due to dual TCP conn setup */
576 struct peer *doppelganger;
577
718e3744 578 /* Status of the peer. */
579 int status;
580 int ostatus;
581
6403814c
DS		 582 /* FSM events, stored for debug purposes.
583 * Note: uchar used for reduced memory usage.
584 */
585 unsigned char cur_event;
586 unsigned char last_event;
587 unsigned char last_major_event;
588
0b2aa3a0
PJ		 589 /* Peer index, used for dumping TABLE_DUMP_V2 format */
590 uint16_t table_dump_index;
591
718e3744 592 /* Peer information */
eb821189 593 int fd; /* File descriptor */
594 int ttl; /* TTL of TCP connection to the peer. */
baa376fc 595 int rtt; /* Estimated round-trip-time from TCP_INFO */
fa411a21 596 int gtsm_hops; /* minimum hopcount to peer */
eb821189 597 char *desc; /* Description of the peer. */
598 unsigned short port; /* Destination port for peer */
599 char *host; /* Printable address of the peer. */
600 union sockunion su; /* Sockunion address of the peer. */
a80beece 601#define BGP_PEER_SU_UNSPEC(peer) (peer->su.sa.sa_family == AF_UNSPEC)
eb821189 602 time_t uptime; /* Last Up/Down time */
603 time_t readtime; /* Last read time */
604 time_t resettime; /* Last reset time */
718e3744 605
b892f1dd 606 ifindex_t ifindex; /* ifindex of the BGP connection. */
a80beece 607 char *conf_if; /* neighbor interface config name. */
4a04e5f7 608 struct interface *ifp; /* corresponding interface */
eb821189 609 char *ifname; /* bind interface name. */
610 char *update_if;
611 union sockunion *update_source;
eb821189 612
613 union sockunion *su_local; /* Sockunion of local address. */
614 union sockunion *su_remote; /* Sockunion of remote address. */
615 int shared_network; /* Is this peer shared same network. */
616 struct bgp_nexthop nexthop; /* Nexthop */
718e3744 617
618 /* Peer address family configuration. */
619 u_char afc[AFI_MAX][SAFI_MAX];
620 u_char afc_nego[AFI_MAX][SAFI_MAX];
621 u_char afc_adv[AFI_MAX][SAFI_MAX];
622 u_char afc_recv[AFI_MAX][SAFI_MAX];
623
0a486e5f 624 /* Capability flags (reset in bgp_stop) */
6410e93a 625 u_int32_t cap;
718e3744 626#define PEER_CAP_REFRESH_ADV (1 << 0) /* refresh advertised */
627#define PEER_CAP_REFRESH_OLD_RCV (1 << 1) /* refresh old received */
628#define PEER_CAP_REFRESH_NEW_RCV (1 << 2) /* refresh rfc received */
629#define PEER_CAP_DYNAMIC_ADV (1 << 3) /* dynamic advertised */
630#define PEER_CAP_DYNAMIC_RCV (1 << 4) /* dynamic received */
538621f2 631#define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */
632#define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */
0b2aa3a0
PJ		 633#define PEER_CAP_AS4_ADV (1 << 7) /* as4 advertised */
634#define PEER_CAP_AS4_RCV (1 << 8) /* as4 received */
fe7d2a48
DS		 635#define PEER_CAP_RESTART_BIT_ADV (1 << 9) /* sent restart state */
636#define PEER_CAP_RESTART_BIT_RCV (1 << 10) /* peer restart state */
a82478b9
DS		 637#define PEER_CAP_ADDPATH_ADV (1 << 11) /* addpath advertised */
638#define PEER_CAP_ADDPATH_RCV (1 << 12) /* addpath received */
c744aa9f
DS		 639#define PEER_CAP_ENHE_ADV (1 << 13) /* Extended nexthop advertised */
640#define PEER_CAP_ENHE_RCV (1 << 14) /* Extended nexthop received */
04b6bdc0
DW		 641#define PEER_CAP_HOSTNAME_ADV (1 << 15) /* hostname advertised */
642#define PEER_CAP_HOSTNAME_RCV (1 << 16) /* hostname received */
718e3744 643
0a486e5f 644 /* Capability flags (reset in bgp_stop) */
04b6bdc0 645 u_int32_t af_cap[AFI_MAX][SAFI_MAX];
718e3744 646#define PEER_CAP_ORF_PREFIX_SM_ADV (1 << 0) /* send-mode advertised */
647#define PEER_CAP_ORF_PREFIX_RM_ADV (1 << 1) /* receive-mode advertised */
648#define PEER_CAP_ORF_PREFIX_SM_RCV (1 << 2) /* send-mode received */
649#define PEER_CAP_ORF_PREFIX_RM_RCV (1 << 3) /* receive-mode received */
650#define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1 << 4) /* send-mode received */
651#define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1 << 5) /* receive-mode received */
93406d87 652#define PEER_CAP_RESTART_AF_RCV (1 << 6) /* graceful restart afi/safi received */
653#define PEER_CAP_RESTART_AF_PRESERVE_RCV (1 << 7) /* graceful restart afi/safi F-bit received */
a82478b9
DS		 654#define PEER_CAP_ADDPATH_AF_TX_ADV (1 << 8) /* addpath tx advertised */
655#define PEER_CAP_ADDPATH_AF_TX_RCV (1 << 9) /* addpath tx received */
656#define PEER_CAP_ADDPATH_AF_RX_ADV (1 << 10) /* addpath rx advertised */
657#define PEER_CAP_ADDPATH_AF_RX_RCV (1 << 11) /* addpath rx received */
8a92a8a0
DS		 658#define PEER_CAP_ENHE_AF_ADV (1 << 12) /* Extended nexthopi afi/safi advertised */
659#define PEER_CAP_ENHE_AF_RCV (1 << 13) /* Extended nexthop afi/safi received */
660#define PEER_CAP_ENHE_AF_NEGO (1 << 14) /* Extended nexthop afi/safi negotiated */
718e3744 661
662 /* Global configuration flags. */
663 u_int32_t flags;
664#define PEER_FLAG_PASSIVE (1 << 0) /* passive mode */
665#define PEER_FLAG_SHUTDOWN (1 << 1) /* shutdown */
666#define PEER_FLAG_DONT_CAPABILITY (1 << 2) /* dont-capability */
667#define PEER_FLAG_OVERRIDE_CAPABILITY (1 << 3) /* override-capability */
668#define PEER_FLAG_STRICT_CAP_MATCH (1 << 4) /* strict-match */
c9502438 669#define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 5) /* dynamic capability */
6ffd2079 670#define PEER_FLAG_DISABLE_CONNECTED_CHECK (1 << 6) /* disable-connected-check */
c9502438 671#define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 7) /* local-as no-prepend */
9d3f9705 672#define PEER_FLAG_LOCAL_AS_REPLACE_AS (1 << 8) /* local-as no-prepend replace-as */
1ff9a340
DS		 673#define PEER_FLAG_DELETE (1 << 9) /* mark the peer for deleting */
674#define PEER_FLAG_CONFIG_NODE (1 << 10) /* the node to update configs on */
7f342629
DS		 675#define PEER_FLAG_LONESOUL (1 << 11)
676#define PEER_FLAG_DYNAMIC_NEIGHBOR (1 << 12) /* dynamic neighbor */
677#define PEER_FLAG_CAPABILITY_ENHE (1 << 13) /* Extended next-hop (rfc 5549)*/
88177fe3 678#define PEER_FLAG_IFPEER_V6ONLY (1 << 14) /* if-based peer is v6 only */
65efcfce
LB		 679#if ENABLE_BGP_VNC
680#define PEER_FLAG_IS_RFAPI_HD (1 << 15) /* attached to rfapi HD */
681#endif
73d70fa6
DL		 682 /* outgoing message sent in CEASE_ADMIN_SHUTDOWN notify */
683 char *tx_shutdown_message;
718e3744 684
93406d87 685 /* NSF mode (graceful restart) */
686 u_char nsf[AFI_MAX][SAFI_MAX];
687
718e3744 688 /* Per AF configuration flags. */
689 u_int32_t af_flags[AFI_MAX][SAFI_MAX];
690#define PEER_FLAG_SEND_COMMUNITY (1 << 0) /* send-community */
691#define PEER_FLAG_SEND_EXT_COMMUNITY (1 << 1) /* send-community ext. */
692#define PEER_FLAG_NEXTHOP_SELF (1 << 2) /* next-hop-self */
693#define PEER_FLAG_REFLECTOR_CLIENT (1 << 3) /* reflector-client */
694#define PEER_FLAG_RSERVER_CLIENT (1 << 4) /* route-server-client */
695#define PEER_FLAG_SOFT_RECONFIG (1 << 5) /* soft-reconfiguration */
696#define PEER_FLAG_AS_PATH_UNCHANGED (1 << 6) /* transparent-as */
697#define PEER_FLAG_NEXTHOP_UNCHANGED (1 << 7) /* transparent-next-hop */
698#define PEER_FLAG_MED_UNCHANGED (1 << 8) /* transparent-next-hop */
699#define PEER_FLAG_DEFAULT_ORIGINATE (1 << 9) /* default-originate */
700#define PEER_FLAG_REMOVE_PRIVATE_AS (1 << 10) /* remove-private-as */
701#define PEER_FLAG_ALLOWAS_IN (1 << 11) /* set allowas-in */
702#define PEER_FLAG_ORF_PREFIX_SM (1 << 12) /* orf capability send-mode */
703#define PEER_FLAG_ORF_PREFIX_RM (1 << 13) /* orf capability receive-mode */
704#define PEER_FLAG_MAX_PREFIX (1 << 14) /* maximum prefix */
705#define PEER_FLAG_MAX_PREFIX_WARNING (1 << 15) /* maximum prefix warning-only */
0df7c91f 706#define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1 << 16) /* leave link-local nexthop unchanged */
a538debe 707#define PEER_FLAG_FORCE_NEXTHOP_SELF (1 << 17) /* next-hop-self force */
5000f21c
DS		 708#define PEER_FLAG_REMOVE_PRIVATE_AS_ALL (1 << 18) /* remove-private-as all */
709#define PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE (1 << 19) /* remove-private-as replace-as */
c7122e14 710#define PEER_FLAG_AS_OVERRIDE (1 << 20) /* as-override */
88b8ed8d 711#define PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE (1 << 21) /* remove-private-as all replace-as */
adbac85e 712#define PEER_FLAG_ADDPATH_TX_ALL_PATHS (1 << 22) /* addpath-tx-all-paths */
06370dac 713#define PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS (1 << 23) /* addpath-tx-bestpath-per-AS */
d93f7ffc 714#define PEER_FLAG_WEIGHT (1 << 24) /* weight */
aac9ef6c 715#define PEER_FLAG_ALLOWAS_IN_ORIGIN (1 << 25) /* allowas-in origin */
57d187bc 716#define PEER_FLAG_SEND_LARGE_COMMUNITY (1 << 26) /* Send large Communities */
0df7c91f
PJ		 717
718 /* MD5 password */
719 char *password;
718e3744 720
721 /* default-originate route-map. */
722 struct
723 {
724 char *name;
725 struct route_map *map;
726 } default_rmap[AFI_MAX][SAFI_MAX];
727
728 /* Peer status flags. */
729 u_int16_t sflags;
730#define PEER_STATUS_ACCEPT_PEER (1 << 0) /* accept peer */
731#define PEER_STATUS_PREFIX_OVERFLOW (1 << 1) /* prefix-overflow */
732#define PEER_STATUS_CAPABILITY_OPEN (1 << 2) /* capability open send */
733#define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */
734#define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */
93406d87 735#define PEER_STATUS_NSF_MODE (1 << 5) /* NSF aware peer */
736#define PEER_STATUS_NSF_WAIT (1 << 6) /* wait comeback peer */
718e3744 737
0a486e5f 738 /* Peer status af flags (reset in bgp_stop) */
718e3744 739 u_int16_t af_sflags[AFI_MAX][SAFI_MAX];
740#define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */
741#define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */
840fced9
DS		 742#define PEER_STATUS_PREFIX_THRESHOLD (1 << 2) /* exceed prefix-threshold */
743#define PEER_STATUS_PREFIX_LIMIT (1 << 3) /* exceed prefix-limit */
744#define PEER_STATUS_EOR_SEND (1 << 4) /* end-of-rib send to peer */
745#define PEER_STATUS_EOR_RECEIVED (1 << 5) /* end-of-rib received from peer */
e0701b79 746
718e3744 747 /* Default attribute value for the peer. */
748 u_int32_t config;
d93f7ffc
DW		 749#define PEER_CONFIG_TIMER (1 << 0) /* keepalive & holdtime */
750#define PEER_CONFIG_CONNECT (1 << 1) /* connect */
751#define PEER_CONFIG_ROUTEADV (1 << 2) /* route advertise */
8ffedcea 752
718e3744 753 u_int32_t holdtime;
754 u_int32_t keepalive;
755 u_int32_t connect;
756 u_int32_t routeadv;
757
758 /* Timer values. */
759 u_int32_t v_start;
760 u_int32_t v_connect;
761 u_int32_t v_holdtime;
762 u_int32_t v_keepalive;
718e3744 763 u_int32_t v_routeadv;
0a486e5f 764 u_int32_t v_pmax_restart;
93406d87 765 u_int32_t v_gr_restart;
718e3744 766
767 /* Threads. */
768 struct thread *t_read;
769 struct thread *t_write;
770 struct thread *t_start;
771 struct thread *t_connect;
772 struct thread *t_holdtime;
773 struct thread *t_keepalive;
718e3744 774 struct thread *t_routeadv;
0a486e5f 775 struct thread *t_pmax_restart;
93406d87 776 struct thread *t_gr_restart;
777 struct thread *t_gr_stale;
64e580a7
PJ		 778
779 /* workqueues */
780 struct work_queue *clear_node_queue;
781
718e3744 782 /* Statistics field */
783 u_int32_t open_in; /* Open message input count */
784 u_int32_t open_out; /* Open message output count */
785 u_int32_t update_in; /* Update message input count */
786 u_int32_t update_out; /* Update message ouput count */
787 time_t update_time; /* Update message received time. */
788 u_int32_t keepalive_in; /* Keepalive input count */
789 u_int32_t keepalive_out; /* Keepalive output count */
790 u_int32_t notify_in; /* Notify input count */
791 u_int32_t notify_out; /* Notify output count */
792 u_int32_t refresh_in; /* Route Refresh input count */
793 u_int32_t refresh_out; /* Route Refresh output count */
794 u_int32_t dynamic_cap_in; /* Dynamic Capability input count. */
795 u_int32_t dynamic_cap_out; /* Dynamic Capability output count. */
796
797 /* BGP state count */
798 u_int32_t established; /* Established */
799 u_int32_t dropped; /* Dropped */
800
f188f2c4
DS		 801 /* Update delay related fields */
802 u_char update_delay_over; /* When this is set, BGP is no more waiting for EOR */
803
718e3744 804 /* Syncronization list and time. */
805 struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX];
806 time_t synctime;
1ba2a97a
DW		 807 time_t last_write; /* timestamp when the last msg was written */
808 time_t last_update; /* timestamp when the last UPDATE msg was written */
718e3744 809
810 /* Send prefix count. */
811 unsigned long scount[AFI_MAX][SAFI_MAX];
812
813 /* Announcement attribute hash. */
814 struct hash *hash[AFI_MAX][SAFI_MAX];
815
816 /* Notify data. */
817 struct bgp_notify notify;
818
819 /* Whole packet size to be read. */
820 unsigned long packet_size;
821
822 /* Filter structure. */
823 struct bgp_filter filter[AFI_MAX][SAFI_MAX];
824
825 /* ORF Prefix-list */
826 struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX];
827
16286195
DS		 828 /* Text description of last attribute rcvd */
829 char rcvd_attr_str[BUFSIZ];
830
831 /* Track if we printed the attribute in debugs */
832 int rcvd_attr_printed;
833
718e3744 834 /* Prefix count. */
835 unsigned long pcount[AFI_MAX][SAFI_MAX];
836
837 /* Max prefix count. */
838 unsigned long pmax[AFI_MAX][SAFI_MAX];
e0701b79 839 u_char pmax_threshold[AFI_MAX][SAFI_MAX];
0a486e5f 840 u_int16_t pmax_restart[AFI_MAX][SAFI_MAX];
e0701b79 841#define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75
718e3744 842
843 /* allowas-in. */
844 char allowas_in[AFI_MAX][SAFI_MAX];
ac41b2a2 845
d93f7ffc
DW		 846 /* weight */
847 unsigned long weight[AFI_MAX][SAFI_MAX];
848
e0701b79 849 /* peer reset cause */
850 char last_reset;
851#define PEER_DOWN_RID_CHANGE 1 /* bgp router-id command */
852#define PEER_DOWN_REMOTE_AS_CHANGE 2 /* neighbor remote-as command */
853#define PEER_DOWN_LOCAL_AS_CHANGE 3 /* neighbor local-as command */
854#define PEER_DOWN_CLID_CHANGE 4 /* bgp cluster-id command */
855#define PEER_DOWN_CONFED_ID_CHANGE 5 /* bgp confederation identifier command */
856#define PEER_DOWN_CONFED_PEER_CHANGE 6 /* bgp confederation peer command */
857#define PEER_DOWN_RR_CLIENT_CHANGE 7 /* neighbor route-reflector-client command */
858#define PEER_DOWN_RS_CLIENT_CHANGE 8 /* neighbor route-server-client command */
859#define PEER_DOWN_UPDATE_SOURCE_CHANGE 9 /* neighbor update-source command */
860#define PEER_DOWN_AF_ACTIVATE 10 /* neighbor activate command */
861#define PEER_DOWN_USER_SHUTDOWN 11 /* neighbor shutdown command */
862#define PEER_DOWN_USER_RESET 12 /* clear ip bgp command */
863#define PEER_DOWN_NOTIFY_RECEIVED 13 /* notification received */
864#define PEER_DOWN_NOTIFY_SEND 14 /* notification send */
865#define PEER_DOWN_CLOSE_SESSION 15 /* tcp session close */
866#define PEER_DOWN_NEIGHBOR_DELETE 16 /* neghbor delete */
867#define PEER_DOWN_RMAP_BIND 17 /* neghbor peer-group command */
868#define PEER_DOWN_RMAP_UNBIND 18 /* no neighbor peer-group command */
869#define PEER_DOWN_CAPABILITY_CHANGE 19 /* neighbor capability command */
870#define PEER_DOWN_PASSIVE_CHANGE 20 /* neighbor passive command */
871#define PEER_DOWN_MULTIHOP_CHANGE 21 /* neighbor multihop command */
93406d87 872#define PEER_DOWN_NSF_CLOSE_SESSION 22 /* NSF tcp session close */
8ffedcea 873#define PEER_DOWN_V6ONLY_CHANGE 23 /* if-based peering v6only toggled */
7bbc6864 874#define PEER_DOWN_BFD_DOWN 24 /* BFD down */
e60480bd
DD		 875#define PEER_DOWN_IF_DOWN 25 /* Interface down */
876#define PEER_DOWN_NBR_ADDR_DEL 26 /* Peer address lost */
d6661008
DS		 877unsigned long last_reset_cause_size;
878u_char last_reset_cause[BGP_MAX_PACKET_SIZE];
e0701b79 879
ac41b2a2 880 /* The kind of route-map Flags.*/
881 u_char rmap_type;
882#define PEER_RMAP_TYPE_IN (1 << 0) /* neighbor route-map in */
883#define PEER_RMAP_TYPE_OUT (1 << 1) /* neighbor route-map out */
884#define PEER_RMAP_TYPE_NETWORK (1 << 2) /* network route-map */
885#define PEER_RMAP_TYPE_REDISTRIBUTE (1 << 3) /* redistribute route-map */
886#define PEER_RMAP_TYPE_DEFAULT (1 << 4) /* default-originate route-map */
887#define PEER_RMAP_TYPE_NOSET (1 << 5) /* not allow to set commands */
fee0f4c6 888#define PEER_RMAP_TYPE_IMPORT (1 << 6) /* neighbor route-map import */
889#define PEER_RMAP_TYPE_EXPORT (1 << 7) /* neighbor route-map export */
6410e93a 890
c43ed2e4 891 /* peer specific BFD information */
88177fe3 892 struct bfd_info *bfd_info;
04b6bdc0
DW		 893
894 /* hostname and domainname advertised by host */
895 char *hostname;
896 char *domainname;
19df7279
DL		 897
898 QOBJ_FIELDS
718e3744 899};
19df7279 900DECLARE_QOBJ_TYPE(peer)
718e3744 901
ad4cbda1 902/* Check if suppress start/restart of sessions to peer. */
903#define BGP_PEER_START_SUPPRESSED(P) \
904 (CHECK_FLAG ((P)->flags, PEER_FLAG_SHUTDOWN) \
905 || CHECK_FLAG ((P)->sflags, PEER_STATUS_PREFIX_OVERFLOW))
906
0df7c91f
PJ		 907#define PEER_PASSWORD_MINLEN (1)
908#define PEER_PASSWORD_MAXLEN (80)
909
718e3744 910/* This structure's member directly points incoming packet data
911 stream. */
912struct bgp_nlri
913{
914 /* AFI. */
915 afi_t afi;
916
917 /* SAFI. */
918 safi_t safi;
919
920 /* Pointer to NLRI byte stream. */
921 u_char *nlri;
922
923 /* Length of whole NLRI. */
924 bgp_size_t length;
925};
926
927/* BGP versions. */
928#define BGP_VERSION_4 4
718e3744 929
930/* Default BGP port number. */
931#define BGP_PORT_DEFAULT 179
932
718e3744 933/* BGP minimum message size. */
934#define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10)
935#define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4)
936#define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2)
937#define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0)
938#define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4)
939#define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3)
940
941/* BGP message types. */
942#define BGP_MSG_OPEN 1
943#define BGP_MSG_UPDATE 2
944#define BGP_MSG_NOTIFY 3
945#define BGP_MSG_KEEPALIVE 4
946#define BGP_MSG_ROUTE_REFRESH_NEW 5
947#define BGP_MSG_CAPABILITY 6
948#define BGP_MSG_ROUTE_REFRESH_OLD 128
949
950/* BGP open optional parameter. */
951#define BGP_OPEN_OPT_AUTH 1
952#define BGP_OPEN_OPT_CAP 2
953
954/* BGP4 attribute type codes. */
955#define BGP_ATTR_ORIGIN 1
956#define BGP_ATTR_AS_PATH 2
957#define BGP_ATTR_NEXT_HOP 3
958#define BGP_ATTR_MULTI_EXIT_DISC 4
959#define BGP_ATTR_LOCAL_PREF 5
960#define BGP_ATTR_ATOMIC_AGGREGATE 6
961#define BGP_ATTR_AGGREGATOR 7
962#define BGP_ATTR_COMMUNITIES 8
963#define BGP_ATTR_ORIGINATOR_ID 9
964#define BGP_ATTR_CLUSTER_LIST 10
965#define BGP_ATTR_DPA 11
966#define BGP_ATTR_ADVERTISER 12
967#define BGP_ATTR_RCID_PATH 13
968#define BGP_ATTR_MP_REACH_NLRI 14
969#define BGP_ATTR_MP_UNREACH_NLRI 15
970#define BGP_ATTR_EXT_COMMUNITIES 16
0b2aa3a0
PJ		 971#define BGP_ATTR_AS4_PATH 17
972#define BGP_ATTR_AS4_AGGREGATOR 18
41367172 973#define BGP_ATTR_AS_PATHLIMIT 21
f4c89855 974#define BGP_ATTR_ENCAP 23
57d187bc 975#define BGP_ATTR_LARGE_COMMUNITIES 32
c5a543b4 976#define BGP_ATTR_PREFIX_SID 40
65efcfce
LB		 977#if ENABLE_BGP_VNC
978#define BGP_ATTR_VNC 255
979#endif
718e3744 980
981/* BGP update origin. */
982#define BGP_ORIGIN_IGP 0
983#define BGP_ORIGIN_EGP 1
984#define BGP_ORIGIN_INCOMPLETE 2
985
986/* BGP notify message codes. */
987#define BGP_NOTIFY_HEADER_ERR 1
988#define BGP_NOTIFY_OPEN_ERR 2
989#define BGP_NOTIFY_UPDATE_ERR 3
990#define BGP_NOTIFY_HOLD_ERR 4
991#define BGP_NOTIFY_FSM_ERR 5
992#define BGP_NOTIFY_CEASE 6
993#define BGP_NOTIFY_CAPABILITY_ERR 7
994#define BGP_NOTIFY_MAX 8
995
4b4e07d2
DT		 996#define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0
997
718e3744 998/* BGP_NOTIFY_HEADER_ERR sub codes. */
999#define BGP_NOTIFY_HEADER_NOT_SYNC 1
1000#define BGP_NOTIFY_HEADER_BAD_MESLEN 2
1001#define BGP_NOTIFY_HEADER_BAD_MESTYPE 3
1002#define BGP_NOTIFY_HEADER_MAX 4
1003
1004/* BGP_NOTIFY_OPEN_ERR sub codes. */
14051b36 1005#define BGP_NOTIFY_OPEN_MALFORMED_ATTR 0
718e3744 1006#define BGP_NOTIFY_OPEN_UNSUP_VERSION 1
1007#define BGP_NOTIFY_OPEN_BAD_PEER_AS 2
1008#define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3
1009#define BGP_NOTIFY_OPEN_UNSUP_PARAM 4
1010#define BGP_NOTIFY_OPEN_AUTH_FAILURE 5
1011#define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6
1012#define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7
1013#define BGP_NOTIFY_OPEN_MAX 8
1014
1015/* BGP_NOTIFY_UPDATE_ERR sub codes. */
1016#define BGP_NOTIFY_UPDATE_MAL_ATTR 1
1017#define BGP_NOTIFY_UPDATE_UNREC_ATTR 2
1018#define BGP_NOTIFY_UPDATE_MISS_ATTR 3
1019#define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4
1020#define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5
1021#define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6
1022#define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7
1023#define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8
1024#define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9
1025#define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10
1026#define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11
1027#define BGP_NOTIFY_UPDATE_MAX 12
1028
4b4e07d2 1029/* BGP_NOTIFY_CEASE sub codes (RFC 4486). */
718e3744 1030#define BGP_NOTIFY_CEASE_MAX_PREFIX 1
1031#define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2
1032#define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3
1033#define BGP_NOTIFY_CEASE_ADMIN_RESET 4
1034#define BGP_NOTIFY_CEASE_CONNECT_REJECT 5
1035#define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6
545acafb 1036#define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7
1037#define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8
1038#define BGP_NOTIFY_CEASE_MAX 9
718e3744 1039
1040/* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */
1041#define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1
1042#define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2
1043#define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3
1044#define BGP_NOTIFY_CAPABILITY_MAX 4
1045
1046/* BGP finite state machine status. */
1047#define Idle 1
1048#define Connect 2
1049#define Active 3
1050#define OpenSent 4
1051#define OpenConfirm 5
1052#define Established 6
ca058a30
PJ		 1053#define Clearing 7
1054#define Deleted 8
1055#define BGP_STATUS_MAX 9
718e3744 1056
1057/* BGP finite state machine events. */
1058#define BGP_Start 1
1059#define BGP_Stop 2
1060#define TCP_connection_open 3
1061#define TCP_connection_closed 4
1062#define TCP_connection_open_failed 5
1063#define TCP_fatal_error 6
1064#define ConnectRetry_timer_expired 7
1065#define Hold_Timer_expired 8
1066#define KeepAlive_timer_expired 9
1067#define Receive_OPEN_message 10
1068#define Receive_KEEPALIVE_message 11
1069#define Receive_UPDATE_message 12
1070#define Receive_NOTIFICATION_message 13
ca058a30
PJ		 1071#define Clearing_Completed 14
1072#define BGP_EVENTS_MAX 15
718e3744 1073
1074/* BGP timers default value. */
8efe88ea 1075/* note: the DFLT_ ones depend on compile-time "defaults" selection */
5ca5f1c8 1076#define BGP_INIT_START_TIMER 1
8efe88ea
DL		 1077#define BGP_DEFAULT_HOLDTIME DFLT_BGP_HOLDTIME
1078#define BGP_DEFAULT_KEEPALIVE DFLT_BGP_KEEPALIVE
12179ba3 1079#define BGP_DEFAULT_EBGP_ROUTEADV 0
1670355a 1080#define BGP_DEFAULT_IBGP_ROUTEADV 0
8efe88ea 1081#define BGP_DEFAULT_CONNECT_RETRY DFLT_BGP_TIMERS_CONNECT
718e3744 1082
1083/* BGP default local preference. */
1084#define BGP_DEFAULT_LOCAL_PREF 100
1085
3f9c7369
DS		 1086/* BGP default subgroup packet queue max . */
1087#define BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX 40
1088
538621f2 1089/* BGP graceful restart */
1090#define BGP_DEFAULT_RESTART_TIME 120
1091#define BGP_DEFAULT_STALEPATH_TIME 360
1092
718e3744 1093/* BGP uptime string length. */
1094#define BGP_UPTIME_LEN 25
1095
1096/* Default configuration settings for bgpd. */
1097#define BGP_VTY_PORT 2605
718e3744 1098#define BGP_DEFAULT_CONFIG "bgpd.conf"
1099
1100/* Check AS path loop when we send NLRI. */
1101/* #define BGP_SEND_ASPATH_CHECK */
1102
f14e6fdb
DS		 1103/* BGP Dynamic Neighbors feature */
1104#define BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT 100
1105#define BGP_DYNAMIC_NEIGHBORS_LIMIT_MIN 1
1106#define BGP_DYNAMIC_NEIGHBORS_LIMIT_MAX 5000
1107
718e3744 1108/* Flag for peer_clear_soft(). */
1109enum bgp_clear_type
1110{
1111 BGP_CLEAR_SOFT_NONE,
1112 BGP_CLEAR_SOFT_OUT,
1113 BGP_CLEAR_SOFT_IN,
1114 BGP_CLEAR_SOFT_BOTH,
2a3d5731 1115 BGP_CLEAR_SOFT_IN_ORF_PREFIX
718e3744 1116};
1117
1118/* Macros. */
1119#define BGP_INPUT(P) ((P)->ibuf)
1120#define BGP_INPUT_PNT(P) (STREAM_PNT(BGP_INPUT(P)))
6aa136f1
VS		 1121#define BGP_IS_VALID_STATE_FOR_NOTIF(S)\
1122 (((S) == OpenSent) || ((S) == OpenConfirm) || ((S) == Established))
718e3744 1123
718e3744 1124/* BGP error codes. */
1125#define BGP_SUCCESS 0
1126#define BGP_ERR_INVALID_VALUE -1
1127#define BGP_ERR_INVALID_FLAG -2
1128#define BGP_ERR_INVALID_AS -3
1129#define BGP_ERR_INVALID_BGP -4
1130#define BGP_ERR_PEER_GROUP_MEMBER -5
1131#define BGP_ERR_MULTIPLE_INSTANCE_USED -6
c8560b44
DW		 1132#define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -7
1133#define BGP_ERR_PEER_GROUP_CANT_CHANGE -8
1134#define BGP_ERR_PEER_GROUP_MISMATCH -9
1135#define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -10
1136#define BGP_ERR_MULTIPLE_INSTANCE_NOT_SET -11
1137#define BGP_ERR_AS_MISMATCH -12
1138#define BGP_ERR_PEER_FLAG_CONFLICT -13
1139#define BGP_ERR_PEER_GROUP_SHUTDOWN -14
1140#define BGP_ERR_PEER_FILTER_CONFLICT -15
1141#define BGP_ERR_NOT_INTERNAL_PEER -16
1142#define BGP_ERR_REMOVE_PRIVATE_AS -17
1143#define BGP_ERR_AF_UNCONFIGURED -18
1144#define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -19
1145#define BGP_ERR_INSTANCE_MISMATCH -20
1146#define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -21
1147#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -22
1148#define BGP_ERR_TCPSIG_FAILED -23
1149#define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -24
1150#define BGP_ERR_NO_IBGP_WITH_TTLHACK -25
1151#define BGP_ERR_NO_INTERFACE_CONFIG -26
1152#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS -27
1153#define BGP_ERR_AS_OVERRIDE -28
1154#define BGP_ERR_INVALID_DYNAMIC_NEIGHBORS_LIMIT -29
1155#define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_EXISTS -30
1156#define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND -31
1157#define BGP_ERR_INVALID_FOR_DYNAMIC_PEER -32
1158#define BGP_ERR_MAX -33
63fa10b5 1159#define BGP_ERR_INVALID_FOR_DIRECT_PEER -34
718e3744 1160
3f9c7369
DS		 1161/*
1162 * Enumeration of different policy kinds a peer can be configured with.
1163 */
1164typedef enum
1165{
1166 BGP_POLICY_ROUTE_MAP,
1167 BGP_POLICY_FILTER_LIST,
1168 BGP_POLICY_PREFIX_LIST,
1169 BGP_POLICY_DISTRIBUTE_LIST,
1170} bgp_policy_type_e;
1171
718e3744 1172extern struct bgp_master *bm;
37fe7731 1173extern unsigned int multipath_num;
718e3744 1174
718e3744 1175/* Prototypes. */
94f2b392 1176extern void bgp_terminate (void);
1177extern void bgp_reset (void);
65957886 1178extern time_t bgp_clock (void);
94f2b392 1179extern void bgp_zclient_reset (void);
1180extern int bgp_nexthop_set (union sockunion *, union sockunion *,
718e3744 1181 struct bgp_nexthop *, struct peer *);
94f2b392 1182extern struct bgp *bgp_get_default (void);
1183extern struct bgp *bgp_lookup (as_t, const char *);
1184extern struct bgp *bgp_lookup_by_name (const char *);
6aeb9e78 1185extern struct bgp *bgp_lookup_by_vrf_id (vrf_id_t);
94f2b392 1186extern struct peer *peer_lookup (struct bgp *, union sockunion *);
a80beece 1187extern struct peer *peer_lookup_by_conf_if (struct bgp *, const char *);
04b6bdc0 1188extern struct peer *peer_lookup_by_hostname(struct bgp *, const char *);
a80beece 1189extern void bgp_peer_conf_if_to_su_update (struct peer *);
ffd0c037 1190extern int peer_group_listen_range_del(struct peer_group *, struct prefix *);
94f2b392 1191extern struct peer_group *peer_group_lookup (struct bgp *, const char *);
1192extern struct peer_group *peer_group_get (struct bgp *, const char *);
f14e6fdb
DS		 1193extern struct peer *peer_create_bind_dynamic_neighbor (struct bgp *,
1194 union sockunion *, struct peer_group *);
1195extern struct prefix *peer_group_lookup_dynamic_neighbor_range (
1196 struct peer_group *, struct prefix *);
1197extern struct peer_group *peer_group_lookup_dynamic_neighbor (struct bgp *,
1198 struct prefix *, struct prefix **);
1199extern struct peer *peer_lookup_dynamic_neighbor (struct bgp *,
1200 union sockunion *);
1201extern void peer_drop_dynamic_neighbor (struct peer *);
28066f4b
DS		 1202
1203/*
1204 * Peers are incredibly easy to memory leak
1205 * due to the various ways that they are actually used
1206 * Provide some functionality to debug locks and unlocks
1207 */
1208extern struct peer *peer_lock_with_caller(const char *, struct peer *);
1209extern struct peer *peer_unlock_with_caller(const char *, struct peer *);
1210#define peer_unlock(A) peer_unlock_with_caller(__FUNCTION__, (A))
1211#define peer_lock(B) peer_lock_with_caller(__FUNCTION__, (B))
1212
6d85b15b 1213extern bgp_peer_sort_t peer_sort (struct peer *peer);
94f2b392 1214extern int peer_active (struct peer *);
1215extern int peer_active_nego (struct peer *);
06370dac 1216extern void bgp_recalculate_all_bestpaths (struct bgp *bgp);
a80beece 1217extern struct peer *peer_create(union sockunion *, const char *, struct bgp *,
f813b13b 1218 as_t, as_t, int, afi_t, safi_t, struct peer_group *);
94f2b392 1219extern struct peer *peer_create_accept (struct bgp *);
1ff9a340 1220extern void peer_xfer_config (struct peer *dst, struct peer *src);
856ca177
MS		 1221extern char *peer_uptime (time_t, char *, size_t, u_char, json_object *);
1222
94f2b392 1223extern int bgp_config_write (struct vty *);
1224extern void bgp_config_write_family_header (struct vty *, afi_t, safi_t, int *);
6b0655a2 1225
4f04a76b 1226extern void bgp_master_init (struct thread_master *master);
718e3744 1227
94f2b392 1228extern void bgp_init (void);
1229extern void bgp_route_map_init (void);
4c48cf63 1230extern void bgp_session_reset (struct peer *);
718e3744 1231
94f2b392 1232extern int bgp_option_set (int);
1233extern int bgp_option_unset (int);
1234extern int bgp_option_check (int);
718e3744 1235
ad4cbda1 1236extern int bgp_get (struct bgp **, as_t *, const char *, enum bgp_instance_type);
6aeb9e78
DS		 1237extern void bgp_instance_up (struct bgp *);
1238extern void bgp_instance_down (struct bgp *);
94f2b392 1239extern int bgp_delete (struct bgp *);
718e3744 1240
94f2b392 1241extern int bgp_flag_set (struct bgp *, int);
1242extern int bgp_flag_unset (struct bgp *, int);
1243extern int bgp_flag_check (struct bgp *, int);
718e3744 1244
0088b5dc
SH		 1245extern void bgp_lock (struct bgp *);
1246extern void bgp_unlock (struct bgp *);
1247
0e6cb743
DL		 1248extern void bgp_router_id_zebra_bump (vrf_id_t, const struct prefix*);
1249extern int bgp_router_id_static_set (struct bgp *, struct in_addr);
718e3744 1250
94f2b392 1251extern int bgp_cluster_id_set (struct bgp *, struct in_addr *);
1252extern int bgp_cluster_id_unset (struct bgp *);
718e3744 1253
94f2b392 1254extern int bgp_confederation_id_set (struct bgp *, as_t);
1255extern int bgp_confederation_id_unset (struct bgp *);
1256extern int bgp_confederation_peers_check (struct bgp *, as_t);
718e3744 1257
94f2b392 1258extern int bgp_confederation_peers_add (struct bgp *, as_t);
1259extern int bgp_confederation_peers_remove (struct bgp *, as_t);
718e3744 1260
4760600f 1261extern int bgp_timers_set (struct bgp *, u_int32_t keepalive, u_int32_t holdtime);
94f2b392 1262extern int bgp_timers_unset (struct bgp *);
718e3744 1263
94f2b392 1264extern int bgp_default_local_preference_set (struct bgp *, u_int32_t);
1265extern int bgp_default_local_preference_unset (struct bgp *);
718e3744 1266
3f9c7369
DS		 1267extern int bgp_default_subgroup_pkt_queue_max_set (struct bgp *bgp, u_int32_t);
1268extern int bgp_default_subgroup_pkt_queue_max_unset (struct bgp *bgp);
1269
f14e6fdb
DS		 1270extern int bgp_listen_limit_set (struct bgp *, int);
1271extern int bgp_listen_limit_unset (struct bgp *);
1272
f188f2c4
DS		 1273extern int bgp_update_delay_active (struct bgp *);
1274extern int bgp_update_delay_configured (struct bgp *);
0299c004 1275extern void peer_as_change (struct peer *, as_t, int);
a80beece 1276extern int peer_remote_as (struct bgp *, union sockunion *,const char *, as_t *,
0299c004
DS		 1277 int, afi_t, safi_t);
1278extern int peer_group_remote_as (struct bgp *, const char *, as_t *, int);
94f2b392 1279extern int peer_delete (struct peer *peer);
1280extern int peer_group_delete (struct peer_group *);
1281extern int peer_group_remote_as_delete (struct peer_group *);
f14e6fdb 1282extern int peer_group_listen_range_add(struct peer_group *, struct prefix *);
718e3744 1283
94f2b392 1284extern int peer_activate (struct peer *, afi_t, safi_t);
1285extern int peer_deactivate (struct peer *, afi_t, safi_t);
4760600f 1286extern int peer_afc_set (struct peer *, afi_t, safi_t, int);
718e3744 1287
a80beece 1288extern int peer_group_bind (struct bgp *, union sockunion *, struct peer *,
c8560b44
DW		 1289 struct peer_group *, as_t *);
1290extern int peer_group_unbind (struct bgp *, struct peer *, struct peer_group *);
718e3744 1291
94f2b392 1292extern int peer_flag_set (struct peer *, u_int32_t);
1293extern int peer_flag_unset (struct peer *, u_int32_t);
718e3744 1294
94f2b392 1295extern int peer_af_flag_set (struct peer *, afi_t, safi_t, u_int32_t);
1296extern int peer_af_flag_unset (struct peer *, afi_t, safi_t, u_int32_t);
1297extern int peer_af_flag_check (struct peer *, afi_t, safi_t, u_int32_t);
718e3744 1298
94f2b392 1299extern int peer_ebgp_multihop_set (struct peer *, int);
1300extern int peer_ebgp_multihop_unset (struct peer *);
c43ed2e4 1301extern int is_ebgp_multihop_configured (struct peer *peer);
718e3744 1302
4760600f 1303extern int peer_description_set (struct peer *, const char *);
94f2b392 1304extern int peer_description_unset (struct peer *);
718e3744 1305
94f2b392 1306extern int peer_update_source_if_set (struct peer *, const char *);
4760600f 1307extern int peer_update_source_addr_set (struct peer *, const union sockunion *);
94f2b392 1308extern int peer_update_source_unset (struct peer *);
718e3744 1309
94f2b392 1310extern int peer_default_originate_set (struct peer *, afi_t, safi_t, const char *);
1311extern int peer_default_originate_unset (struct peer *, afi_t, safi_t);
718e3744 1312
94f2b392 1313extern int peer_port_set (struct peer *, u_int16_t);
1314extern int peer_port_unset (struct peer *);
718e3744 1315
d93f7ffc
DW		 1316extern int peer_weight_set (struct peer *, afi_t, safi_t, u_int16_t);
1317extern int peer_weight_unset (struct peer *, afi_t, safi_t);
718e3744 1318
4760600f 1319extern int peer_timers_set (struct peer *, u_int32_t keepalive, u_int32_t holdtime);
94f2b392 1320extern int peer_timers_unset (struct peer *);
718e3744 1321
94f2b392 1322extern int peer_timers_connect_set (struct peer *, u_int32_t);
1323extern int peer_timers_connect_unset (struct peer *);
718e3744 1324
94f2b392 1325extern int peer_advertise_interval_set (struct peer *, u_int32_t);
1326extern int peer_advertise_interval_unset (struct peer *);
718e3744 1327
ffd0c037
DS		 1328extern void peer_interface_set (struct peer *, const char *);
1329extern void peer_interface_unset (struct peer *);
718e3744 1330
94f2b392 1331extern int peer_distribute_set (struct peer *, afi_t, safi_t, int, const char *);
1332extern int peer_distribute_unset (struct peer *, afi_t, safi_t, int);
718e3744 1333
aac9ef6c 1334extern int peer_allowas_in_set (struct peer *, afi_t, safi_t, int, int);
94f2b392 1335extern int peer_allowas_in_unset (struct peer *, afi_t, safi_t);
718e3744 1336
9d3f9705 1337extern int peer_local_as_set (struct peer *, as_t, int, int);
94f2b392 1338extern int peer_local_as_unset (struct peer *);
718e3744 1339
94f2b392 1340extern int peer_prefix_list_set (struct peer *, afi_t, safi_t, int, const char *);
1341extern int peer_prefix_list_unset (struct peer *, afi_t, safi_t, int);
718e3744 1342
94f2b392 1343extern int peer_aslist_set (struct peer *, afi_t, safi_t, int, const char *);
1344extern int peer_aslist_unset (struct peer *,afi_t, safi_t, int);
718e3744 1345
94f2b392 1346extern int peer_route_map_set (struct peer *, afi_t, safi_t, int, const char *);
1347extern int peer_route_map_unset (struct peer *, afi_t, safi_t, int);
718e3744 1348
94f2b392 1349extern int peer_unsuppress_map_set (struct peer *, afi_t, safi_t, const char *);
0df7c91f
PJ		 1350
1351extern int peer_password_set (struct peer *, const char *);
1352extern int peer_password_unset (struct peer *);
1353
94f2b392 1354extern int peer_unsuppress_map_unset (struct peer *, afi_t, safi_t);
718e3744 1355
94f2b392 1356extern int peer_maximum_prefix_set (struct peer *, afi_t, safi_t, u_int32_t, u_char, int, u_int16_t);
1357extern int peer_maximum_prefix_unset (struct peer *, afi_t, safi_t);
718e3744 1358
1ff9a340 1359extern int peer_clear (struct peer *, struct listnode **);
94f2b392 1360extern int peer_clear_soft (struct peer *, afi_t, safi_t, enum bgp_clear_type);
93406d87 1361
fa411a21
NH		 1362extern int peer_ttl_security_hops_set (struct peer *, int);
1363extern int peer_ttl_security_hops_unset (struct peer *);
1364
73d70fa6
DL		 1365extern int peer_tx_shutdown_message_set (struct peer *, const char *msg);
1366extern int peer_tx_shutdown_message_unset (struct peer *);
1367
518f0eb1
DS		 1368extern int bgp_route_map_update_timer (struct thread *thread);
1369extern void bgp_route_map_terminate(void);
16286195
DS		 1370
1371extern int peer_cmp (struct peer *p1, struct peer *p2);
3f9c7369 1372
9cabb64b 1373extern int
b58ed1f8 1374bgp_map_afi_safi_iana2int (iana_afi_t pkt_afi, safi_t pkt_safi,
9cabb64b 1375 afi_t *afi, safi_t *safi);
1376extern int
1377bgp_map_afi_safi_int2iana (afi_t afi, safi_t safi,
b58ed1f8 1378 iana_afi_t *pkt_afi, safi_t *pkt_safi);
9cabb64b 1379
3f9c7369
DS		 1380extern struct peer_af * peer_af_create (struct peer *, afi_t, safi_t);
1381extern struct peer_af * peer_af_find (struct peer *, afi_t, safi_t);
1382extern int peer_af_delete (struct peer *, afi_t, safi_t);
1383
ffd0c037
DS		 1384extern void bgp_close(void);
1385
3f9c7369
DS		 1386static inline int
1387afindex (afi_t afi, safi_t safi)
1388{
1389 switch (afi)
1390 {
1391 case AFI_IP:
1392 switch (safi)
1393 {
1394 case SAFI_UNICAST:
1395 return BGP_AF_IPV4_UNICAST;
1396 break;
1397 case SAFI_MULTICAST:
1398 return BGP_AF_IPV4_MULTICAST;
1399 break;
cd1964ff
DS		 1400 case SAFI_LABELED_UNICAST:
1401 return BGP_AF_IPV4_LBL_UNICAST;
1402 break;
3f9c7369
DS		 1403 case SAFI_MPLS_VPN:
1404 return BGP_AF_IPV4_VPN;
1405 break;
587ff0fd
LB		 1406 case SAFI_ENCAP:
1407 return BGP_AF_IPV4_ENCAP;
1408 break;
3f9c7369
DS		 1409 default:
1410 return BGP_AF_MAX;
1411 break;
1412 }
1413 break;
1414 case AFI_IP6:
1415 switch (safi)
1416 {
1417 case SAFI_UNICAST:
1418 return BGP_AF_IPV6_UNICAST;
1419 break;
1420 case SAFI_MULTICAST:
1421 return BGP_AF_IPV6_MULTICAST;
1422 break;
cd1964ff
DS		 1423 case SAFI_LABELED_UNICAST:
1424 return BGP_AF_IPV6_LBL_UNICAST;
1425 break;
1426 case SAFI_MPLS_VPN:
6407da5a 1427 return BGP_AF_IPV6_VPN;
1428 break;
587ff0fd
LB		 1429 case SAFI_ENCAP:
1430 return BGP_AF_IPV6_ENCAP;
1431 break;
3f9c7369
DS		 1432 default:
1433 return BGP_AF_MAX;
1434 break;
1435 }
1436 break;
2c9ba7c7
PG		 1437 case AFI_L2VPN:
1438 switch (safi)
1439 {
1440 case SAFI_EVPN:
1441 return BGP_AF_L2VPN_EVPN;
1442 break;
1443 default:
1444 return BGP_AF_MAX;
1445 break;
1446 }
3f9c7369
DS		 1447 default:
1448 return BGP_AF_MAX;
1449 break;
1450 }
1451}
1452
c8560b44 1453/* If the peer is not a peer-group but is bound to a peer-group return 1 */
3f9c7369
DS		 1454static inline int
1455peer_group_active (struct peer *peer)
1456{
c8560b44 1457 if (!CHECK_FLAG (peer->sflags, PEER_STATUS_GROUP) && peer->group)
3f9c7369
DS		 1458 return 1;
1459 return 0;
1460}
1461
1462/* If peer is negotiated at least one address family return 1. */
1463static inline int
1464peer_afi_active_nego (const struct peer *peer, afi_t afi)
1465{
1466 if (peer->afc_nego[afi][SAFI_UNICAST]
1467 || peer->afc_nego[afi][SAFI_MULTICAST]
cd1964ff 1468 || peer->afc_nego[afi][SAFI_LABELED_UNICAST]
587ff0fd
LB		 1469 || peer->afc_nego[afi][SAFI_MPLS_VPN]
1470 || peer->afc_nego[afi][SAFI_ENCAP])
3f9c7369
DS		 1471 return 1;
1472 return 0;
1473}
1474
f14e6fdb
DS		 1475/* If at least one address family activated for group, return 1. */
1476static inline int
1477peer_group_af_configured (struct peer_group *group)
1478{
1479 struct peer *peer = group->conf;
1480
1481 if (peer->afc[AFI_IP][SAFI_UNICAST]
1482 || peer->afc[AFI_IP][SAFI_MULTICAST]
cd1964ff 1483 || peer->afc[AFI_IP][SAFI_LABELED_UNICAST]
f14e6fdb 1484 || peer->afc[AFI_IP][SAFI_MPLS_VPN]
587ff0fd 1485 || peer->afc[AFI_IP][SAFI_ENCAP]
f14e6fdb 1486 || peer->afc[AFI_IP6][SAFI_UNICAST]
6407da5a 1487 || peer->afc[AFI_IP6][SAFI_MULTICAST]
cd1964ff 1488 || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST]
587ff0fd
LB		 1489 || peer->afc[AFI_IP6][SAFI_MPLS_VPN]
1490 || peer->afc[AFI_IP6][SAFI_ENCAP])
f14e6fdb
DS		 1491 return 1;
1492 return 0;
1493}
1494
3f9c7369
DS		 1495static inline char *
1496timestamp_string (time_t ts)
1497{
3f9c7369
DS		 1498 time_t tbuf;
1499 tbuf = time(NULL) - (bgp_clock() - ts);
1500 return ctime(&tbuf);
3f9c7369
DS		 1501}
1502
1503static inline int
1504peer_established (struct peer *peer)
1505{
1506 if (peer->status == Established)
1507 return 1;
1508 return 0;
1509}
1510
f14e6fdb
DS		 1511static inline int
1512peer_dynamic_neighbor (struct peer *peer)
1513{
1514 return (CHECK_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR)) ? 1 : 0;
1515}
1516
8a92a8a0
DS		 1517/*
1518 * Currently supporting RFC 5549 for AFI_IP/SAFI_UNICAST only.
1519 *
1520 * Note: When other RFC-5549 applicable SAFIs to be supported, that should
1521 * come as an argument to this routine.
1522 */
1523static inline int
1524peer_cap_enhe (struct peer *peer)
1525{
1526 return (CHECK_FLAG(peer->af_cap[AFI_IP][SAFI_UNICAST], PEER_CAP_ENHE_AF_NEGO));
1527}
1528
d1be1f08 1529/* Lookup VRF for BGP instance based on its type. */
1530static inline struct vrf *
1531bgp_vrf_lookup_by_instance_type (struct bgp *bgp)
1532{
1533 struct vrf *vrf;
1534
1535 if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)
5f3d1bdf 1536 vrf = vrf_lookup_by_id (VRF_DEFAULT);
d1be1f08 1537 else if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF)
1538 vrf = vrf_lookup_by_name (bgp->name);
1539 else
1540 vrf = NULL;
1541
1542 return vrf;
1543}
1544
1545/* Link BGP instance to VRF. */
1546static inline void
1547bgp_vrf_link (struct bgp *bgp, struct vrf *vrf)
1548{
1549 bgp->vrf_id = vrf->vrf_id;
59ecefe2 1550 if (vrf->info != (void *)bgp)
1551 {
1552 bgp_lock (bgp);
1553 vrf->info = (void *)bgp;
1554 }
d1be1f08 1555}
1556
1557/* Unlink BGP instance from VRF. */
1558static inline void
1559bgp_vrf_unlink (struct bgp *bgp, struct vrf *vrf)
1560{
59ecefe2 1561 if (vrf->info == (void *)bgp)
1562 {
1563 vrf->info = NULL;
1564 bgp_unlock (bgp);
1565 }
5c81a5f3 1566 bgp->vrf_id = VRF_UNKNOWN;
d1be1f08 1567}
1568
eb117f29 1569extern void bgp_update_redist_vrf_bitmaps (struct bgp*, vrf_id_t);
65efcfce
LB		 1570
1571/* For benefit of rfapi */
1572extern struct peer * peer_new (struct bgp *bgp);
1573
00d252cb 1574#endif /* _QUAGGA_BGPD_H */
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