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718e3744 1/* BGP message definition header.
896014f4
DL		 2 * Copyright (C) 1996, 97, 98, 99, 2000 Kunihiro Ishiguro
3 *
4 * This file is part of GNU Zebra.
5 *
6 * GNU Zebra is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2, or (at your option) any
9 * later version.
10 *
11 * GNU Zebra is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with this program; see the file COPYING; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 */
718e3744 20
00d252cb 21#ifndef _QUAGGA_BGPD_H
22#define _QUAGGA_BGPD_H
23
19df7279 24#include "qobj.h"
d3ecc69e
QY		 25#include <pthread.h>
26
1ac267a2 27#include "frr_pthread.h"
856ca177 28#include "lib/json.h"
6aeb9e78 29#include "vrf.h"
94c60424 30#include "vty.h"
17136bf2 31#include "iana_afi.h"
6aeb9e78 32
718e3744 33/* For union sockunion. */
3f9c7369 34#include "queue.h"
718e3744 35#include "sockunion.h"
518f0eb1 36#include "routemap.h"
ffd0c037 37#include "linklist.h"
8efe88ea 38#include "defaults.h"
4a1ab8e4 39#include "bgp_memory.h"
14c1a7bf 40#include "bitfield.h"
fe1dc5a3 41#include "vxlan.h"
955bfd98 42#include "bgp_labelpool.h"
dcc68b5e 43#include "bgp_addpath_types.h"
718e3744 44
04b6bdc0 45#define BGP_MAX_HOSTNAME 64 /* Linux max, is larger than most other sys */
40520c36 46#define BGP_PEER_MAX_HASH_SIZE 16384
04b6bdc0 47
5c81b96a 48/* Default interval for IPv6 RAs when triggered by BGP unnumbered neighbor. */
49#define BGP_UNNUM_DEFAULT_RA_INTERVAL 10
50
3f9c7369
DS		 51struct update_subgroup;
52struct bpacket;
4762c213 53struct bgp_pbr_config;
3f9c7369 54
0299c004
DS		 55/*
56 * Allow the neighbor XXXX remote-as to take internal or external
d62a17ae 57 * AS_SPECIFIED is zero to auto-inherit original non-feature/enhancement
58 * behavior
0299c004
DS		 59 * in the system.
60 */
d62a17ae 61enum { AS_UNSPECIFIED = 0,
62 AS_SPECIFIED,
63 AS_INTERNAL,
64 AS_EXTERNAL,
0299c004
DS		 65};
66
718e3744 67/* Typedef BGP specific types. */
d7c0a89a
QY		 68typedef uint32_t as_t;
69typedef uint16_t as16_t; /* we may still encounter 16 Bit asnums */
70typedef uint16_t bgp_size_t;
718e3744 71
d62a17ae 72#define max(a, b) \
73 ({ \
74 __typeof__(a) _a = (a); \
75 __typeof__(b) _b = (b); \
76 _a > _b ? _a : _b; \
77 })
78
79enum bgp_af_index {
80 BGP_AF_START,
81 BGP_AF_IPV4_UNICAST = BGP_AF_START,
82 BGP_AF_IPV4_MULTICAST,
83 BGP_AF_IPV4_VPN,
84 BGP_AF_IPV6_UNICAST,
85 BGP_AF_IPV6_MULTICAST,
86 BGP_AF_IPV6_VPN,
87 BGP_AF_IPV4_ENCAP,
88 BGP_AF_IPV6_ENCAP,
89 BGP_AF_L2VPN_EVPN,
90 BGP_AF_IPV4_LBL_UNICAST,
91 BGP_AF_IPV6_LBL_UNICAST,
7c40bf39 92 BGP_AF_IPV4_FLOWSPEC,
93 BGP_AF_IPV6_FLOWSPEC,
d62a17ae 94 BGP_AF_MAX
3f9c7369
DS		 95};
96
d62a17ae 97#define AF_FOREACH(af) for ((af) = BGP_AF_START; (af) < BGP_AF_MAX; (af)++)
3f9c7369 98
d62a17ae 99#define FOREACH_AFI_SAFI(afi, safi) \
100 for (afi = AFI_IP; afi < AFI_MAX; afi++) \
101 for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++)
3f9c7369 102
d1927ebe
AS		 103#define FOREACH_SAFI(safi) \
104 for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++)
3f9c7369 105
1ac267a2
DL		 106extern struct frr_pthread *bgp_pth_io;
107extern struct frr_pthread *bgp_pth_ka;
108
718e3744 109/* BGP master for system wide configurations and variables. */
d62a17ae 110struct bgp_master {
111 /* BGP instance list. */
112 struct list *bgp;
113
114 /* BGP thread master. */
115 struct thread_master *master;
718e3744 116
d62a17ae 117 /* work queues */
118 struct work_queue *process_main_queue;
87d4a781 119
d62a17ae 120 /* Listening sockets */
121 struct list *listen_sockets;
718e3744 122
d62a17ae 123 /* BGP port number. */
d7c0a89a 124 uint16_t port;
3a02d1f7 125
d62a17ae 126 /* Listener address */
127 char *address;
718e3744 128
48ecf8f5
DS		 129 /* The Mac table */
130 struct hash *self_mac_hash;
131
d62a17ae 132 /* BGP start time. */
133 time_t start_time;
134
135 /* Various BGP global configuration. */
d7c0a89a 136 uint8_t options;
718e3744 137#define BGP_OPT_NO_FIB (1 << 0)
d8a9922d
DS		 138#define BGP_OPT_NO_LISTEN (1 << 1)
139#define BGP_OPT_NO_ZEBRA (1 << 2)
3f9c7369 140
d62a17ae 141 uint64_t updgrp_idspace;
142 uint64_t subgrp_idspace;
5fe9f963 143
d62a17ae 144 /* timer to dampen route map changes */
145 struct thread *t_rmap_update; /* Handle route map updates */
d7c0a89a 146 uint32_t rmap_update_timer; /* Route map update timer */
5fe9f963 147#define RMAP_DEFAULT_UPDATE_TIMER 5 /* disabled by default */
19df7279 148
e9eb5f63 149 /* Id space for automatic RD derivation for an EVI/VRF */
150 bitfield_t rd_idspace;
151
955bfd98
PZ		 152 /* dynamic mpls label allocation pool */
153 struct labelpool labelpool;
154
e2f3a930
T		 155 /* BGP-EVPN VRF ID. Defaults to default VRF (if any) */
156 struct bgp* bgp_evpn;
157
97b4a0ec 158 bool terminating; /* global flag that sigint terminate seen */
d62a17ae 159 QOBJ_FIELDS
718e3744 160};
19df7279 161DECLARE_QOBJ_TYPE(bgp_master)
718e3744 162
73ac8160 163/* BGP route-map structure. */
d62a17ae 164struct bgp_rmap {
165 char *name;
166 struct route_map *map;
73ac8160
DS		 167};
168
d62a17ae 169struct bgp_redist {
d7c0a89a 170 unsigned short instance;
7c8ff89e 171
d62a17ae 172 /* BGP redistribute metric configuration. */
d7c0a89a
QY		 173 uint8_t redist_metric_flag;
174 uint32_t redist_metric;
7c8ff89e 175
d62a17ae 176 /* BGP redistribute route-map. */
177 struct bgp_rmap rmap;
7c8ff89e
DS		 178};
179
ddb5b488
PZ		 180typedef enum {
181 BGP_VPN_POLICY_DIR_FROMVPN = 0,
182 BGP_VPN_POLICY_DIR_TOVPN = 1,
183 BGP_VPN_POLICY_DIR_MAX = 2
184} vpn_policy_direction_t;
185
e70e9f8e
PZ		 186struct vpn_policy {
187 struct bgp *bgp; /* parent */
188 afi_t afi;
189 struct ecommunity *rtlist[BGP_VPN_POLICY_DIR_MAX];
190 struct ecommunity *import_redirect_rtlist;
191 char *rmap_name[BGP_VPN_POLICY_DIR_MAX];
192 struct route_map *rmap[BGP_VPN_POLICY_DIR_MAX];
193
194 /* should be mpls_label_t? */
195 uint32_t tovpn_label; /* may be MPLS_LABEL_NONE */
196 uint32_t tovpn_zebra_vrf_label_last_sent;
197 struct prefix_rd tovpn_rd;
198 struct prefix tovpn_nexthop; /* unset => set to 0 */
199 uint32_t flags;
200#define BGP_VPN_POLICY_TOVPN_LABEL_AUTO (1 << 0)
201#define BGP_VPN_POLICY_TOVPN_RD_SET (1 << 1)
202#define BGP_VPN_POLICY_TOVPN_NEXTHOP_SET (1 << 2)
12a844a5 203
1d4e8b0d
DS		 204 /*
205 * If we are importing another vrf into us keep a list of
206 * vrf names that are being imported into us.
207 */
12a844a5 208 struct list *import_vrf;
1d4e8b0d
DS		 209
210 /*
211 * if we are being exported to another vrf keep a list of
212 * vrf names that we are being exported to.
213 */
12a844a5 214 struct list *export_vrf;
e70e9f8e
PZ		 215};
216
ad4cbda1 217/*
218 * Type of 'struct bgp'.
219 * - Default: The default instance
220 * - VRF: A specific (non-default) VRF
221 * - View: An instance used for route exchange
222 * The "default" instance is treated separately to simplify the code. Note
223 * that if deployed in a Multi-VRF environment, it may not exist.
224 */
d62a17ae 225enum bgp_instance_type {
226 BGP_INSTANCE_TYPE_DEFAULT,
227 BGP_INSTANCE_TYPE_VRF,
228 BGP_INSTANCE_TYPE_VIEW
ad4cbda1 229};
230
718e3744 231/* BGP instance structure. */
d62a17ae 232struct bgp {
233 /* AS number of this BGP instance. */
234 as_t as;
235
236 /* Name of this BGP instance. */
237 char *name;
3572fb26 238 char *name_pretty; /* printable "VRF|VIEW name|default" */
d62a17ae 239
240 /* Type of instance and VRF id. */
241 enum bgp_instance_type inst_type;
242 vrf_id_t vrf_id;
243
244 /* Reference count to allow peer_delete to finish after bgp_delete */
245 int lock;
246
247 /* Self peer. */
248 struct peer *peer_self;
249
250 /* BGP peer. */
251 struct list *peer;
252 struct hash *peerhash;
253
254 /* BGP peer group. */
255 struct list *group;
256
257 /* The maximum number of BGP dynamic neighbors that can be created */
258 int dynamic_neighbors_limit;
259
260 /* The current number of BGP dynamic neighbors */
261 int dynamic_neighbors_count;
262
263 struct hash *update_groups[BGP_AF_MAX];
264
265 /*
266 * Global statistics for update groups.
267 */
268 struct {
d7c0a89a
QY		 269 uint32_t join_events;
270 uint32_t prune_events;
271 uint32_t merge_events;
272 uint32_t split_events;
273 uint32_t updgrp_switch_events;
274 uint32_t peer_refreshes_combined;
275 uint32_t adj_count;
276 uint32_t merge_checks_triggered;
277
278 uint32_t updgrps_created;
279 uint32_t updgrps_deleted;
280 uint32_t subgrps_created;
281 uint32_t subgrps_deleted;
d62a17ae 282 } update_group_stats;
283
284 /* BGP configuration. */
d7c0a89a 285 uint16_t config;
c2d58d6d 286#define BGP_CONFIG_CLUSTER_ID (1 << 0)
287#define BGP_CONFIG_CONFEDERATION (1 << 1)
718e3744 288
d62a17ae 289 /* BGP router identifier. */
290 struct in_addr router_id;
291 struct in_addr router_id_static;
292 struct in_addr router_id_zebra;
718e3744 293
d62a17ae 294 /* BGP route reflector cluster ID. */
295 struct in_addr cluster_id;
718e3744 296
d62a17ae 297 /* BGP confederation information. */
298 as_t confed_id;
299 as_t *confed_peers;
300 int confed_peers_cnt;
718e3744 301
d62a17ae 302 struct thread
303 *t_startup; /* start-up timer on only once at the beginning */
abc920f8 304
d7c0a89a 305 uint32_t v_maxmed_onstartup; /* Duration of max-med on start-up */
abc920f8 306#define BGP_MAXMED_ONSTARTUP_UNCONFIGURED 0 /* 0 means off, its the default */
d7c0a89a
QY		 307 uint32_t maxmed_onstartup_value; /* Max-med value when active on
308 start-up */
d62a17ae 309 struct thread
310 *t_maxmed_onstartup; /* non-null when max-med onstartup is on */
d7c0a89a 311 uint8_t maxmed_onstartup_over; /* Flag to make it effective only once */
d62a17ae 312
d7c0a89a 313 uint8_t v_maxmed_admin; /* 1/0 if max-med administrative is on/off */
abc920f8 314#define BGP_MAXMED_ADMIN_UNCONFIGURED 0 /* Off by default */
d7c0a89a
QY		 315 uint32_t maxmed_admin_value; /* Max-med value when administrative in on
316 */
abc920f8
DS		 317#define BGP_MAXMED_VALUE_DEFAULT 4294967294 /* Maximum by default */
318
d7c0a89a
QY		 319 uint8_t maxmed_active; /* 1/0 if max-med is active or not */
320 uint32_t maxmed_value; /* Max-med value when its active */
d62a17ae 321
322 /* BGP update delay on startup */
323 struct thread *t_update_delay;
324 struct thread *t_establish_wait;
d7c0a89a
QY		 325 uint8_t update_delay_over;
326 uint8_t main_zebra_update_hold;
327 uint8_t main_peers_update_hold;
328 uint16_t v_update_delay;
329 uint16_t v_establish_wait;
d62a17ae 330 char update_delay_begin_time[64];
331 char update_delay_end_time[64];
332 char update_delay_zebra_resume_time[64];
333 char update_delay_peers_resume_time[64];
d7c0a89a
QY		 334 uint32_t established;
335 uint32_t restarted_peers;
336 uint32_t implicit_eors;
337 uint32_t explicit_eors;
f188f2c4
DS		 338#define BGP_UPDATE_DELAY_DEF 0
339#define BGP_UPDATE_DELAY_MIN 0
340#define BGP_UPDATE_DELAY_MAX 3600
341
d62a17ae 342 /* BGP flags. */
d7c0a89a 343 uint32_t flags;
718e3744 344#define BGP_FLAG_ALWAYS_COMPARE_MED (1 << 0)
345#define BGP_FLAG_DETERMINISTIC_MED (1 << 1)
346#define BGP_FLAG_MED_MISSING_AS_WORST (1 << 2)
347#define BGP_FLAG_MED_CONFED (1 << 3)
348#define BGP_FLAG_NO_DEFAULT_IPV4 (1 << 4)
349#define BGP_FLAG_NO_CLIENT_TO_CLIENT (1 << 5)
718e3744 350#define BGP_FLAG_COMPARE_ROUTER_ID (1 << 7)
351#define BGP_FLAG_ASPATH_IGNORE (1 << 8)
352#define BGP_FLAG_IMPORT_CHECK (1 << 9)
353#define BGP_FLAG_NO_FAST_EXT_FAILOVER (1 << 10)
848973c7 354#define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1 << 11)
538621f2 355#define BGP_FLAG_GRACEFUL_RESTART (1 << 12)
6811845b 356#define BGP_FLAG_ASPATH_CONFED (1 << 13)
2fdd455c 357#define BGP_FLAG_ASPATH_MULTIPATH_RELAX (1 << 14)
8bd9d948 358#define BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY (1 << 15)
907f92c8 359#define BGP_FLAG_DISABLE_NH_CONNECTED_CHK (1 << 16)
219178b6 360#define BGP_FLAG_MULTIPATH_RELAX_AS_SET (1 << 17)
078430f6 361#define BGP_FLAG_FORCE_STATIC_PROCESS (1 << 18)
5623e905 362#define BGP_FLAG_SHOW_HOSTNAME (1 << 19)
6a9a3cde 363#define BGP_FLAG_GR_PRESERVE_FWD (1 << 20)
7f323236 364#define BGP_FLAG_GRACEFUL_SHUTDOWN (1 << 21)
9f822fa2 365#define BGP_FLAG_DELETE_IN_PROGRESS (1 << 22)
718e3744 366
d62a17ae 367 /* BGP Per AF flags */
d7c0a89a 368 uint16_t af_flags[AFI_MAX][SAFI_MAX];
f4882003 369#define BGP_CONFIG_DAMPENING (1 << 0)
2c29b18a 370/* l2vpn evpn flags - 1 << 0 is used for DAMPENNG */
f4882003
MK		 371#define BGP_L2VPN_EVPN_ADVERTISE_IPV4_UNICAST (1 << 1)
372#define BGP_L2VPN_EVPN_ADVERTISE_IPV6_UNICAST (1 << 2)
373#define BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV4 (1 << 3)
374#define BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV6 (1 << 4)
375/* import/export between address families */
376#define BGP_CONFIG_VRF_TO_MPLSVPN_EXPORT (1 << 5)
377#define BGP_CONFIG_MPLSVPN_TO_VRF_IMPORT (1 << 6)
378/* vrf-route leaking flags */
379#define BGP_CONFIG_VRF_TO_VRF_IMPORT (1 << 7)
380#define BGP_CONFIG_VRF_TO_VRF_EXPORT (1 << 8)
154faa50 381
210ec2a0
AS		 382 /* BGP per AF peer count */
383 uint32_t af_peer_count[AFI_MAX][SAFI_MAX];
384
d62a17ae 385 /* Route table for next-hop lookup cache. */
386 struct bgp_table *nexthop_cache_table[AFI_MAX];
6aeb9e78 387
d62a17ae 388 /* Route table for import-check */
389 struct bgp_table *import_check_table[AFI_MAX];
6aeb9e78 390
d62a17ae 391 struct bgp_table *connected_table[AFI_MAX];
6aeb9e78 392
d62a17ae 393 struct hash *address_hash;
6aeb9e78 394
db0e1937
MK		 395 /* DB for all local tunnel-ips - used mainly for martian checks
396 Currently it only has all VxLan tunnel IPs*/
397 struct hash *tip_hash;
398
d62a17ae 399 /* Static route configuration. */
400 struct bgp_table *route[AFI_MAX][SAFI_MAX];
718e3744 401
d62a17ae 402 /* Aggregate address configuration. */
403 struct bgp_table *aggregate[AFI_MAX][SAFI_MAX];
718e3744 404
d62a17ae 405 /* BGP routing information base. */
406 struct bgp_table *rib[AFI_MAX][SAFI_MAX];
718e3744 407
d62a17ae 408 /* BGP table route-map. */
409 struct bgp_rmap table_map[AFI_MAX][SAFI_MAX];
73ac8160 410
d62a17ae 411 /* BGP redistribute configuration. */
412 struct list *redist[AFI_MAX][ZEBRA_ROUTE_MAX];
718e3744 413
318cac96 414 /* Allocate MPLS labels */
d7c0a89a 415 uint8_t allocate_mpls_labels[AFI_MAX][SAFI_MAX];
318cac96 416
f3d32faa
PG		 417 /* Allocate hash entries to store policy routing information
418 * The hash are used to host pbr rules somewhere.
419 * Actually, pbr will only be used by flowspec
420 * those hash elements will have relationship together as
421 * illustrated in below diagram:
422 *
423 * pbr_action a <----- pbr_match i <--- pbr_match_entry 1..n
424 * <----- pbr_match j <--- pbr_match_entry 1..m
27e376d4 425 * <----- pbr_rule k
f3d32faa
PG		 426 *
427 * - here in BGP structure, the list of match and actions will
428 * stand for the list of ipset sets, and table_ids in the kernel
429 * - the arrow above between pbr_match and pbr_action indicate
430 * that a backpointer permits match to find the action
431 * - the arrow betwen match_entry and match is a hash list
432 * contained in match, that lists the whole set of entries
433 */
434 struct hash *pbr_match_hash;
27e376d4 435 struct hash *pbr_rule_hash;
f3d32faa
PG		 436 struct hash *pbr_action_hash;
437
d62a17ae 438 /* timer to re-evaluate neighbor default-originate route-maps */
439 struct thread *t_rmap_def_originate_eval;
0de4848d
DS		 440#define RMAP_DEFAULT_ORIGINATE_EVAL_TIMER 5
441
d62a17ae 442 /* BGP distance configuration. */
d7c0a89a
QY		 443 uint8_t distance_ebgp[AFI_MAX][SAFI_MAX];
444 uint8_t distance_ibgp[AFI_MAX][SAFI_MAX];
445 uint8_t distance_local[AFI_MAX][SAFI_MAX];
d62a17ae 446
447 /* BGP default local-preference. */
d7c0a89a 448 uint32_t default_local_pref;
d62a17ae 449
450 /* BGP default subgroup pkt queue max */
d7c0a89a 451 uint32_t default_subgroup_pkt_queue_max;
d62a17ae 452
453 /* BGP default timer. */
d7c0a89a
QY		 454 uint32_t default_holdtime;
455 uint32_t default_keepalive;
d62a17ae 456
457 /* BGP graceful restart */
d7c0a89a
QY		 458 uint32_t restart_time;
459 uint32_t stalepath_time;
d62a17ae 460
461 /* Maximum-paths configuration */
462 struct bgp_maxpaths_cfg {
d7c0a89a
QY		 463 uint16_t maxpaths_ebgp;
464 uint16_t maxpaths_ibgp;
465 uint16_t ibgp_flags;
5e242b0d 466#define BGP_FLAG_IBGP_MULTIPATH_SAME_CLUSTERLEN (1 << 0)
d62a17ae 467 } maxpaths[AFI_MAX][SAFI_MAX];
cb1faec9 468
555e09d4
QY		 469 _Atomic uint32_t wpkt_quanta; // max # packets to write per i/o cycle
470 _Atomic uint32_t rpkt_quanta; // max # packets to read per i/o cycle
471
37a333fe
QY		 472 /* Automatic coalesce adjust on/off */
473 bool heuristic_coalesce;
14b8641a
QY		 474 /* Actual coalesce time */
475 uint32_t coalesce_time;
adbac85e 476
f26845f9
QY		 477 /* Auto-shutdown new peers */
478 bool autoshutdown;
479
dcc68b5e 480 struct bgp_addpath_bgp_data tx_addpath;
65efcfce
LB		 481
482#if ENABLE_BGP_VNC
d62a17ae 483 struct rfapi_cfg *rfapi_cfg;
484 struct rfapi *rfapi;
65efcfce 485#endif
19df7279 486
d62a17ae 487 /* EVPN related information */
14c1a7bf 488
d62a17ae 489 /* EVI hash table */
490 struct hash *vnihash;
14c1a7bf 491
1a98c087
MK		 492 /* EVPN enable - advertise gateway macip routes */
493 int advertise_gw_macip;
494
d62a17ae 495 /* EVPN enable - advertise local VNIs and their MACs etc. */
496 int advertise_all_vni;
14c1a7bf 497
9dac9fc8
DA		 498 /* RFC 8212 - prevent route leaks. */
499 int ebgp_requires_policy;
500#define DEFAULT_EBGP_POLICY_DISABLED 0
501#define DEFAULT_EBGP_POLICY_ENABLED 1
502
85c8d83b
CS		 503 struct bgp_evpn_info *evpn_info;
504
bf1061d8
VB		 505 /* EVPN - use RFC 8365 to auto-derive RT */
506 int advertise_autort_rfc8365;
507
fd069644
DS		 508 /*
509 * Flooding mechanism for BUM packets for VxLAN-EVPN.
510 */
511 enum vxlan_flood_control vxlan_flood_ctrl;
512
d62a17ae 513 /* Hash table of Import RTs to EVIs */
514 struct hash *import_rt_hash;
14c1a7bf 515
10ebe1ab
MK		 516 /* Hash table of VRF import RTs to VRFs */
517 struct hash *vrf_import_rt_hash;
518
fe1dc5a3
MK		 519 /* L3-VNI corresponding to this vrf */
520 vni_t l3vni;
521
522 /* router-mac to be used in mac-ip routes for this vrf */
523 struct ethaddr rmac;
524
b67a60d2 525 /* originator ip - to be used as NH for type-5 routes */
526 struct in_addr originator_ip;
527
0483af6e 528 /* SVI associated with the L3-VNI corresponding to this vrf */
529 ifindex_t l3vni_svi_ifindex;
530
fe1dc5a3
MK		 531 /* vrf flags */
532 uint32_t vrf_flags;
676f83b9 533#define BGP_VRF_AUTO (1 << 0)
154faa50
MK		 534#define BGP_VRF_IMPORT_RT_CFGD (1 << 1)
535#define BGP_VRF_EXPORT_RT_CFGD (1 << 2)
536#define BGP_VRF_RD_CFGD (1 << 3)
23e386ac
MK		 537#define BGP_VRF_L3VNI_PREFIX_ROUTES_ONLY (1 << 4)
538
676f83b9 539
540 /* unique ID for auto derivation of RD for this vrf */
541 uint16_t vrf_rd_id;
542
92708db6 543 /* Automatically derived RD for this VRF */
544 struct prefix_rd vrf_prd_auto;
545
676f83b9 546 /* RD for this VRF */
547 struct prefix_rd vrf_prd;
c581d8b0
MK		 548
549 /* import rt list for the vrf instance */
550 struct list *vrf_import_rtl;
551
552 /* export rt list for the vrf instance */
553 struct list *vrf_export_rtl;
fe1dc5a3 554
6a8657d0
MK		 555 /* list of corresponding l2vnis (struct bgpevpn) */
556 struct list *l2vnis;
557
53c84f78
MK		 558 /* route map for advertise ipv4/ipv6 unicast (type-5 routes) */
559 struct bgp_rmap adv_cmd_rmap[AFI_MAX][SAFI_MAX];
560
e70e9f8e 561 struct vpn_policy vpn_policy[AFI_MAX];
ddb5b488 562
4762c213
PG		 563 struct bgp_pbr_config *bgp_pbr_cfg;
564
50f74cf1 565 /* local esi hash table */
566 struct hash *esihash;
567
36dc7588 568 /* Count of peers in established state */
569 uint32_t established_peers;
570
d62a17ae 571 QOBJ_FIELDS
718e3744 572};
19df7279 573DECLARE_QOBJ_TYPE(bgp)
718e3744 574
2a3d5731 575#define BGP_ROUTE_ADV_HOLD(bgp) (bgp->main_peers_update_hold)
d889623f 576
d62a17ae 577#define IS_BGP_INST_KNOWN_TO_ZEBRA(bgp) \
578 (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT \
579 || (bgp->inst_type == BGP_INSTANCE_TYPE_VRF \
580 && bgp->vrf_id != VRF_UNKNOWN))
ad4cbda1 581
718e3744 582/* BGP peer-group support. */
d62a17ae 583struct peer_group {
584 /* Name of the peer-group. */
585 char *name;
718e3744 586
d62a17ae 587 /* Pointer to BGP. */
588 struct bgp *bgp;
718e3744 589
d62a17ae 590 /* Peer-group client list. */
591 struct list *peer;
f14e6fdb 592
d62a17ae 593 /** Dynamic neighbor listening ranges */
594 struct list *listen_range[AFI_MAX];
595
596 /* Peer-group config */
597 struct peer *conf;
718e3744 598};
599
600/* BGP Notify message format. */
d62a17ae 601struct bgp_notify {
d7c0a89a
QY		 602 uint8_t code;
603 uint8_t subcode;
d62a17ae 604 char *data;
605 bgp_size_t length;
d7c0a89a 606 uint8_t *raw_data;
718e3744 607};
608
609/* Next hop self address. */
d62a17ae 610struct bgp_nexthop {
611 struct interface *ifp;
612 struct in_addr v4;
613 struct in6_addr v6_global;
614 struct in6_addr v6_local;
718e3744 615};
616
a82478b9
DS		 617/* BGP addpath values */
618#define BGP_ADDPATH_RX 1
619#define BGP_ADDPATH_TX 2
620#define BGP_ADDPATH_ID_LEN 4
621
adbac85e
DW		 622#define BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE 1
623
3f54c705 624/* Route map direction */
2a3d5731
DW		 625#define RMAP_IN 0
626#define RMAP_OUT 1
627#define RMAP_MAX 2
fee0f4c6 628
65efcfce
LB		 629#include "filter.h"
630
718e3744 631/* BGP filter structure. */
d62a17ae 632struct bgp_filter {
633 /* Distribute-list. */
634 struct {
635 char *name;
636 struct access_list *alist;
637 } dlist[FILTER_MAX];
638
639 /* Prefix-list. */
640 struct {
641 char *name;
642 struct prefix_list *plist;
643 } plist[FILTER_MAX];
644
645 /* Filter-list. */
646 struct {
647 char *name;
648 struct as_list *aslist;
649 } aslist[FILTER_MAX];
650
651 /* Route-map. */
652 struct {
653 char *name;
654 struct route_map *map;
655 } map[RMAP_MAX];
656
657 /* Unsuppress-map. */
658 struct {
659 char *name;
660 struct route_map *map;
661 } usmap;
718e3744 662};
663
6d85b15b
JBD		 664/* IBGP/EBGP identifier. We also have a CONFED peer, which is to say,
665 a peer who's AS is part of our Confederation. */
d62a17ae 666typedef enum {
faa16034
DS		 667 BGP_PEER_UNSPECIFIED,
668 BGP_PEER_IBGP,
d62a17ae 669 BGP_PEER_EBGP,
670 BGP_PEER_INTERNAL,
671 BGP_PEER_CONFED,
6d85b15b
JBD		 672} bgp_peer_sort_t;
673
d6661008
DS		 674/* BGP message header and packet size. */
675#define BGP_MARKER_SIZE 16
676#define BGP_HEADER_SIZE 19
677#define BGP_MAX_PACKET_SIZE 4096
0a91ff55 678#define BGP_MAX_PACKET_SIZE_OVERFLOW 1024
d6661008 679
3f9c7369
DS		 680/*
681 * Trigger delay for bgp_announce_route().
682 */
683#define BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS 100
684#define BGP_ANNOUNCE_ROUTE_DELAY_MS 500
685
d62a17ae 686struct peer_af {
687 /* back pointer to the peer */
688 struct peer *peer;
3f9c7369 689
d62a17ae 690 /* which subgroup the peer_af belongs to */
691 struct update_subgroup *subgroup;
3f9c7369 692
d62a17ae 693 /* for being part of an update subgroup's peer list */
694 LIST_ENTRY(peer_af) subgrp_train;
3f9c7369 695
d62a17ae 696 /* for being part of a packet's peer list */
697 LIST_ENTRY(peer_af) pkt_train;
3f9c7369 698
d62a17ae 699 struct bpacket *next_pkt_to_send;
3f9c7369 700
d62a17ae 701 /*
702 * Trigger timer for bgp_announce_route().
703 */
704 struct thread *t_announce_route;
3f9c7369 705
d62a17ae 706 afi_t afi;
707 safi_t safi;
708 int afid;
3f9c7369
DS		 709};
710
718e3744 711/* BGP neighbor structure. */
d62a17ae 712struct peer {
713 /* BGP structure. */
714 struct bgp *bgp;
715
716 /* reference count, primarily to allow bgp_process'ing of route_node's
717 * to be done after a struct peer is deleted.
718 *
719 * named 'lock' for hysterical reasons within Quagga.
720 */
721 int lock;
722
723 /* BGP peer group. */
724 struct peer_group *group;
725 uint64_t version[AFI_MAX][SAFI_MAX];
726
727 /* BGP peer_af structures, per configured AF on this peer */
728 struct peer_af *peer_af_array[BGP_AF_MAX];
729
730 /* Peer's remote AS number. */
731 int as_type;
732 as_t as;
733
734 /* Peer's local AS number. */
735 as_t local_as;
736
737 bgp_peer_sort_t sort;
738
739 /* Peer's Change local AS number. */
740 as_t change_local_as;
741
742 /* Remote router ID. */
743 struct in_addr remote_id;
744
745 /* Local router ID. */
746 struct in_addr local_id;
747
748 /* Packet receive and send buffer. */
424ab01d
QY		 749 pthread_mutex_t io_mtx; // guards ibuf, obuf
750 struct stream_fifo *ibuf; // packets waiting to be processed
751 struct stream_fifo *obuf; // packets waiting to be written
752
74ffbfe6
QY		 753 struct ringbuf *ibuf_work; // WiP buffer used by bgp_read() only
754 struct stream *obuf_work; // WiP buffer used to construct packets
424ab01d
QY		 755
756 struct stream *curr; // the current packet being parsed
d62a17ae 757
758 /* We use a separate stream to encode MP_REACH_NLRI for efficient
424ab01d 759 * NLRI packing. peer->obuf_work stores all the other attributes. The
d62a17ae 760 * actual packet is then constructed by concatenating the two.
761 */
762 struct stream *scratch;
763
764 /* the doppelganger peer structure, due to dual TCP conn setup */
765 struct peer *doppelganger;
766
767 /* Status of the peer. */
768 int status;
769 int ostatus;
770
771 /* FSM events, stored for debug purposes.
772 * Note: uchar used for reduced memory usage.
773 */
774 unsigned char cur_event;
775 unsigned char last_event;
776 unsigned char last_major_event;
777
778 /* Peer index, used for dumping TABLE_DUMP_V2 format */
779 uint16_t table_dump_index;
780
781 /* Peer information */
782 int fd; /* File descriptor */
783 int ttl; /* TTL of TCP connection to the peer. */
784 int rtt; /* Estimated round-trip-time from TCP_INFO */
785 int gtsm_hops; /* minimum hopcount to peer */
786 char *desc; /* Description of the peer. */
787 unsigned short port; /* Destination port for peer */
788 char *host; /* Printable address of the peer. */
789 union sockunion su; /* Sockunion address of the peer. */
a80beece 790#define BGP_PEER_SU_UNSPEC(peer) (peer->su.sa.sa_family == AF_UNSPEC)
d62a17ae 791 time_t uptime; /* Last Up/Down time */
792 time_t readtime; /* Last read time */
793 time_t resettime; /* Last reset time */
794
d62a17ae 795 char *conf_if; /* neighbor interface config name. */
796 struct interface *ifp; /* corresponding interface */
797 char *ifname; /* bind interface name. */
798 char *update_if;
799 union sockunion *update_source;
800
801 union sockunion *su_local; /* Sockunion of local address. */
802 union sockunion *su_remote; /* Sockunion of remote address. */
803 int shared_network; /* Is this peer shared same network. */
804 struct bgp_nexthop nexthop; /* Nexthop */
805
806 /* Peer address family configuration. */
d7c0a89a
QY		 807 uint8_t afc[AFI_MAX][SAFI_MAX];
808 uint8_t afc_nego[AFI_MAX][SAFI_MAX];
809 uint8_t afc_adv[AFI_MAX][SAFI_MAX];
810 uint8_t afc_recv[AFI_MAX][SAFI_MAX];
d62a17ae 811
812 /* Capability flags (reset in bgp_stop) */
d7c0a89a 813 uint32_t cap;
718e3744 814#define PEER_CAP_REFRESH_ADV (1 << 0) /* refresh advertised */
815#define PEER_CAP_REFRESH_OLD_RCV (1 << 1) /* refresh old received */
816#define PEER_CAP_REFRESH_NEW_RCV (1 << 2) /* refresh rfc received */
817#define PEER_CAP_DYNAMIC_ADV (1 << 3) /* dynamic advertised */
818#define PEER_CAP_DYNAMIC_RCV (1 << 4) /* dynamic received */
538621f2 819#define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */
820#define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */
0b2aa3a0
PJ		 821#define PEER_CAP_AS4_ADV (1 << 7) /* as4 advertised */
822#define PEER_CAP_AS4_RCV (1 << 8) /* as4 received */
fe7d2a48
DS		 823#define PEER_CAP_RESTART_BIT_ADV (1 << 9) /* sent restart state */
824#define PEER_CAP_RESTART_BIT_RCV (1 << 10) /* peer restart state */
a82478b9
DS		 825#define PEER_CAP_ADDPATH_ADV (1 << 11) /* addpath advertised */
826#define PEER_CAP_ADDPATH_RCV (1 << 12) /* addpath received */
c744aa9f
DS		 827#define PEER_CAP_ENHE_ADV (1 << 13) /* Extended nexthop advertised */
828#define PEER_CAP_ENHE_RCV (1 << 14) /* Extended nexthop received */
04b6bdc0
DW		 829#define PEER_CAP_HOSTNAME_ADV (1 << 15) /* hostname advertised */
830#define PEER_CAP_HOSTNAME_RCV (1 << 16) /* hostname received */
718e3744 831
d62a17ae 832 /* Capability flags (reset in bgp_stop) */
d7c0a89a 833 uint32_t af_cap[AFI_MAX][SAFI_MAX];
718e3744 834#define PEER_CAP_ORF_PREFIX_SM_ADV (1 << 0) /* send-mode advertised */
835#define PEER_CAP_ORF_PREFIX_RM_ADV (1 << 1) /* receive-mode advertised */
836#define PEER_CAP_ORF_PREFIX_SM_RCV (1 << 2) /* send-mode received */
837#define PEER_CAP_ORF_PREFIX_RM_RCV (1 << 3) /* receive-mode received */
838#define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1 << 4) /* send-mode received */
839#define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1 << 5) /* receive-mode received */
93406d87 840#define PEER_CAP_RESTART_AF_RCV (1 << 6) /* graceful restart afi/safi received */
841#define PEER_CAP_RESTART_AF_PRESERVE_RCV (1 << 7) /* graceful restart afi/safi F-bit received */
a82478b9
DS		 842#define PEER_CAP_ADDPATH_AF_TX_ADV (1 << 8) /* addpath tx advertised */
843#define PEER_CAP_ADDPATH_AF_TX_RCV (1 << 9) /* addpath tx received */
844#define PEER_CAP_ADDPATH_AF_RX_ADV (1 << 10) /* addpath rx advertised */
845#define PEER_CAP_ADDPATH_AF_RX_RCV (1 << 11) /* addpath rx received */
8a92a8a0
DS		 846#define PEER_CAP_ENHE_AF_ADV (1 << 12) /* Extended nexthopi afi/safi advertised */
847#define PEER_CAP_ENHE_AF_RCV (1 << 13) /* Extended nexthop afi/safi received */
848#define PEER_CAP_ENHE_AF_NEGO (1 << 14) /* Extended nexthop afi/safi negotiated */
718e3744 849
d62a17ae 850 /* Global configuration flags. */
9fb964de
PM		 851 /*
852 * Parallel array to flags that indicates whether each flag originates
853 * from a peer-group or if it is config that is specific to this
854 * individual peer. If a flag is set independent of the peer-group, the
855 * same bit should be set here. If this peer is a peer-group, this
856 * memory region should be all zeros.
857 *
858 * The assumption is that the default state for all flags is unset,
859 * so if a flag is unset, the corresponding override flag is unset too.
860 * However if a flag is set, the corresponding override flag is set.
861 */
862 uint32_t flags_override;
863 /*
864 * Parallel array to flags that indicates whether the default behavior
865 * of *flags_override* should be inverted. If a flag is unset and the
866 * corresponding invert flag is set, the corresponding override flag
867 * would be set. However if a flag is set and the corresponding invert
868 * flag is unset, the corresponding override flag would be unset.
869 *
870 * This can be used for attributes like *send-community*, which are
871 * implicitely enabled and have to be disabled explicitely, compared to
872 * 'normal' attributes like *next-hop-self* which are implicitely set.
873 *
874 * All operations dealing with flags should apply the following boolean
875 * logic to keep the internal flag system in a sane state:
876 *
877 * value=0 invert=0 Inherit flag if member, otherwise unset flag
878 * value=0 invert=1 Unset flag unconditionally
879 * value=1 invert=0 Set flag unconditionally
880 * value=1 invert=1 Inherit flag if member, otherwise set flag
881 *
882 * Contrary to the implementation of *flags_override*, the flag
883 * inversion state can be set either on the peer OR the peer *and* the
884 * peer-group. This was done on purpose, as the inversion state of a
885 * flag can be determined on either the peer or the peer-group.
886 *
887 * Example: Enabling the cisco configuration mode inverts all flags
888 * related to *send-community* unconditionally for both peer-groups and
889 * peers.
890 *
891 * This behavior is different for interface peers though, which enable
892 * the *extended-nexthop* flag by default, which regular peers do not.
893 * As the peer-group can contain both regular and interface peers, the
894 * flag inversion state must be set on the peer only.
895 *
896 * When a peer inherits the configuration from a peer-group and the
897 * inversion state of the flag differs between peer and peer-group, the
898 * newly set value must equal to the inverted state of the peer-group.
899 */
900 uint32_t flags_invert;
901 /*
902 * Effective array for storing the peer/peer-group flags. In case of a
903 * peer-group, the peer-specific overrides (see flags_override and
904 * flags_invert) must be respected.
905 */
d7c0a89a 906 uint32_t flags;
718e3744 907#define PEER_FLAG_PASSIVE (1 << 0) /* passive mode */
908#define PEER_FLAG_SHUTDOWN (1 << 1) /* shutdown */
909#define PEER_FLAG_DONT_CAPABILITY (1 << 2) /* dont-capability */
910#define PEER_FLAG_OVERRIDE_CAPABILITY (1 << 3) /* override-capability */
911#define PEER_FLAG_STRICT_CAP_MATCH (1 << 4) /* strict-match */
c9502438 912#define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 5) /* dynamic capability */
6ffd2079 913#define PEER_FLAG_DISABLE_CONNECTED_CHECK (1 << 6) /* disable-connected-check */
c9502438 914#define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 7) /* local-as no-prepend */
9d3f9705 915#define PEER_FLAG_LOCAL_AS_REPLACE_AS (1 << 8) /* local-as no-prepend replace-as */
47cbc09b
PM		 916#define PEER_FLAG_DELETE (1 << 9) /* mark the peer for deleting */
917#define PEER_FLAG_CONFIG_NODE (1 << 10) /* the node to update configs on */
7f342629
DS		 918#define PEER_FLAG_LONESOUL (1 << 11)
919#define PEER_FLAG_DYNAMIC_NEIGHBOR (1 << 12) /* dynamic neighbor */
920#define PEER_FLAG_CAPABILITY_ENHE (1 << 13) /* Extended next-hop (rfc 5549)*/
88177fe3 921#define PEER_FLAG_IFPEER_V6ONLY (1 << 14) /* if-based peer is v6 only */
47cbc09b
PM		 922#define PEER_FLAG_IS_RFAPI_HD (1 << 15) /* attached to rfapi HD */
923#define PEER_FLAG_ENFORCE_FIRST_AS (1 << 16) /* enforce-first-as */
b90a8e13
PM		 924#define PEER_FLAG_ROUTEADV (1 << 17) /* route advertise */
925#define PEER_FLAG_TIMER (1 << 18) /* keepalive & holdtime */
926#define PEER_FLAG_TIMER_CONNECT (1 << 19) /* connect timer */
a14810f4
PM		 927#define PEER_FLAG_PASSWORD (1 << 20) /* password */
928#define PEER_FLAG_LOCAL_AS (1 << 21) /* local-as */
929#define PEER_FLAG_UPDATE_SOURCE (1 << 22) /* update-source */
02a82b47 930
d62a17ae 931 /* outgoing message sent in CEASE_ADMIN_SHUTDOWN notify */
932 char *tx_shutdown_message;
718e3744 933
d62a17ae 934 /* NSF mode (graceful restart) */
d7c0a89a 935 uint8_t nsf[AFI_MAX][SAFI_MAX];
93406d87 936
04e1c5bb
QY		 937 /* Peer Per AF flags */
938 /*
9fb964de
PM		 939 * Please consult the comments for *flags_override*, *flags_invert* and
940 * *flags* to understand what these three arrays do. The address-family
941 * specific attributes are being treated the exact same way as global
942 * peer attributes.
04e1c5bb
QY		 943 */
944 uint32_t af_flags_override[AFI_MAX][SAFI_MAX];
27c05d4d 945 uint32_t af_flags_invert[AFI_MAX][SAFI_MAX];
d7c0a89a 946 uint32_t af_flags[AFI_MAX][SAFI_MAX];
718e3744 947#define PEER_FLAG_SEND_COMMUNITY (1 << 0) /* send-community */
948#define PEER_FLAG_SEND_EXT_COMMUNITY (1 << 1) /* send-community ext. */
949#define PEER_FLAG_NEXTHOP_SELF (1 << 2) /* next-hop-self */
950#define PEER_FLAG_REFLECTOR_CLIENT (1 << 3) /* reflector-client */
951#define PEER_FLAG_RSERVER_CLIENT (1 << 4) /* route-server-client */
952#define PEER_FLAG_SOFT_RECONFIG (1 << 5) /* soft-reconfiguration */
953#define PEER_FLAG_AS_PATH_UNCHANGED (1 << 6) /* transparent-as */
954#define PEER_FLAG_NEXTHOP_UNCHANGED (1 << 7) /* transparent-next-hop */
955#define PEER_FLAG_MED_UNCHANGED (1 << 8) /* transparent-next-hop */
956#define PEER_FLAG_DEFAULT_ORIGINATE (1 << 9) /* default-originate */
957#define PEER_FLAG_REMOVE_PRIVATE_AS (1 << 10) /* remove-private-as */
958#define PEER_FLAG_ALLOWAS_IN (1 << 11) /* set allowas-in */
959#define PEER_FLAG_ORF_PREFIX_SM (1 << 12) /* orf capability send-mode */
960#define PEER_FLAG_ORF_PREFIX_RM (1 << 13) /* orf capability receive-mode */
961#define PEER_FLAG_MAX_PREFIX (1 << 14) /* maximum prefix */
962#define PEER_FLAG_MAX_PREFIX_WARNING (1 << 15) /* maximum prefix warning-only */
0df7c91f 963#define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1 << 16) /* leave link-local nexthop unchanged */
a538debe 964#define PEER_FLAG_FORCE_NEXTHOP_SELF (1 << 17) /* next-hop-self force */
5000f21c
DS		 965#define PEER_FLAG_REMOVE_PRIVATE_AS_ALL (1 << 18) /* remove-private-as all */
966#define PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE (1 << 19) /* remove-private-as replace-as */
c7122e14 967#define PEER_FLAG_AS_OVERRIDE (1 << 20) /* as-override */
88b8ed8d 968#define PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE (1 << 21) /* remove-private-as all replace-as */
d93f7ffc 969#define PEER_FLAG_WEIGHT (1 << 24) /* weight */
aac9ef6c 970#define PEER_FLAG_ALLOWAS_IN_ORIGIN (1 << 25) /* allowas-in origin */
57d187bc 971#define PEER_FLAG_SEND_LARGE_COMMUNITY (1 << 26) /* Send large Communities */
0df7c91f 972
dcc68b5e
MS		 973 enum bgp_addpath_strat addpath_type[AFI_MAX][SAFI_MAX];
974
d62a17ae 975 /* MD5 password */
976 char *password;
718e3744 977
d62a17ae 978 /* default-originate route-map. */
979 struct {
980 char *name;
981 struct route_map *map;
982 } default_rmap[AFI_MAX][SAFI_MAX];
718e3744 983
d62a17ae 984 /* Peer status flags. */
d7c0a89a 985 uint16_t sflags;
718e3744 986#define PEER_STATUS_ACCEPT_PEER (1 << 0) /* accept peer */
987#define PEER_STATUS_PREFIX_OVERFLOW (1 << 1) /* prefix-overflow */
988#define PEER_STATUS_CAPABILITY_OPEN (1 << 2) /* capability open send */
989#define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */
990#define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */
93406d87 991#define PEER_STATUS_NSF_MODE (1 << 5) /* NSF aware peer */
992#define PEER_STATUS_NSF_WAIT (1 << 6) /* wait comeback peer */
718e3744 993
d62a17ae 994 /* Peer status af flags (reset in bgp_stop) */
d7c0a89a 995 uint16_t af_sflags[AFI_MAX][SAFI_MAX];
718e3744 996#define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */
997#define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */
840fced9
DS		 998#define PEER_STATUS_PREFIX_THRESHOLD (1 << 2) /* exceed prefix-threshold */
999#define PEER_STATUS_PREFIX_LIMIT (1 << 3) /* exceed prefix-limit */
1000#define PEER_STATUS_EOR_SEND (1 << 4) /* end-of-rib send to peer */
1001#define PEER_STATUS_EOR_RECEIVED (1 << 5) /* end-of-rib received from peer */
e0701b79 1002
b90a8e13 1003 /* Configured timer values. */
1588f6f4
QY		 1004 _Atomic uint32_t holdtime;
1005 _Atomic uint32_t keepalive;
1006 _Atomic uint32_t connect;
1007 _Atomic uint32_t routeadv;
d62a17ae 1008
1009 /* Timer values. */
1588f6f4
QY		 1010 _Atomic uint32_t v_start;
1011 _Atomic uint32_t v_connect;
1012 _Atomic uint32_t v_holdtime;
1013 _Atomic uint32_t v_keepalive;
1014 _Atomic uint32_t v_routeadv;
1015 _Atomic uint32_t v_pmax_restart;
1016 _Atomic uint32_t v_gr_restart;
d62a17ae 1017
1018 /* Threads. */
1019 struct thread *t_read;
424ab01d 1020 struct thread *t_write;
d62a17ae 1021 struct thread *t_start;
387f984e
QY		 1022 struct thread *t_connect_check_r;
1023 struct thread *t_connect_check_w;
d62a17ae 1024 struct thread *t_connect;
1025 struct thread *t_holdtime;
d62a17ae 1026 struct thread *t_routeadv;
1027 struct thread *t_pmax_restart;
1028 struct thread *t_gr_restart;
1029 struct thread *t_gr_stale;
56257a44 1030 struct thread *t_generate_updgrp_packets;
424ab01d 1031 struct thread *t_process_packet;
d62a17ae 1032
49507a6f 1033 /* Thread flags. */
0545c373 1034 _Atomic uint32_t thread_flags;
b750b0ba
QY		 1035#define PEER_THREAD_WRITES_ON (1 << 0)
1036#define PEER_THREAD_READS_ON (1 << 1)
1037#define PEER_THREAD_KEEPALIVES_ON (1 << 2)
d62a17ae 1038 /* workqueues */
1039 struct work_queue *clear_node_queue;
1040
a4d82a8a
PZ		 1041#define PEER_TOTAL_RX(peer) \
1042 atomic_load_explicit(&peer->open_in, memory_order_relaxed) \
1043 + atomic_load_explicit(&peer->update_in, memory_order_relaxed) \
1044 + atomic_load_explicit(&peer->notify_in, memory_order_relaxed) \
1045 + atomic_load_explicit(&peer->refresh_in, \
1046 memory_order_relaxed) \
1047 + atomic_load_explicit(&peer->keepalive_in, \
1048 memory_order_relaxed) \
1049 + atomic_load_explicit(&peer->dynamic_cap_in, \
1050 memory_order_relaxed)
1051
1052#define PEER_TOTAL_TX(peer) \
1053 atomic_load_explicit(&peer->open_out, memory_order_relaxed) \
1054 + atomic_load_explicit(&peer->update_out, \
1055 memory_order_relaxed) \
1056 + atomic_load_explicit(&peer->notify_out, \
1057 memory_order_relaxed) \
1058 + atomic_load_explicit(&peer->refresh_out, \
1059 memory_order_relaxed) \
1060 + atomic_load_explicit(&peer->keepalive_out, \
1061 memory_order_relaxed) \
1062 + atomic_load_explicit(&peer->dynamic_cap_out, \
1063 memory_order_relaxed)
0112e9e0 1064
d62a17ae 1065 /* Statistics field */
996c9314
LB		 1066 _Atomic uint32_t open_in; /* Open message input count */
1067 _Atomic uint32_t open_out; /* Open message output count */
1588f6f4
QY		 1068 _Atomic uint32_t update_in; /* Update message input count */
1069 _Atomic uint32_t update_out; /* Update message ouput count */
1070 _Atomic time_t update_time; /* Update message received time. */
1071 _Atomic uint32_t keepalive_in; /* Keepalive input count */
1072 _Atomic uint32_t keepalive_out; /* Keepalive output count */
1073 _Atomic uint32_t notify_in; /* Notify input count */
1074 _Atomic uint32_t notify_out; /* Notify output count */
1075 _Atomic uint32_t refresh_in; /* Route Refresh input count */
1076 _Atomic uint32_t refresh_out; /* Route Refresh output count */
1077 _Atomic uint32_t dynamic_cap_in; /* Dynamic Capability input count. */
a4d82a8a 1078 _Atomic uint32_t dynamic_cap_out; /* Dynamic Capability output count. */
d62a17ae 1079
b4d46cc9
DL		 1080 uint32_t stat_pfx_filter;
1081 uint32_t stat_pfx_aspath_loop;
1082 uint32_t stat_pfx_originator_loop;
1083 uint32_t stat_pfx_cluster_loop;
1084 uint32_t stat_pfx_nh_invalid;
1085 uint32_t stat_pfx_dup_withdraw;
1086 uint32_t stat_upd_7606; /* RFC7606: treat-as-withdraw */
1087
d62a17ae 1088 /* BGP state count */
d7c0a89a
QY		 1089 uint32_t established; /* Established */
1090 uint32_t dropped; /* Dropped */
d62a17ae 1091
1092 /* Update delay related fields */
d7c0a89a 1093 uint8_t update_delay_over; /* When this is set, BGP is no more waiting
d62a17ae 1094 for EOR */
1095
1096 /* Syncronization list and time. */
1097 struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX];
1098 time_t synctime;
1588f6f4
QY		 1099 /* timestamp when the last UPDATE msg was written */
1100 _Atomic time_t last_write;
1101 /* timestamp when the last msg was written */
1102 _Atomic time_t last_update;
d62a17ae 1103
1104 /* Send prefix count. */
1105 unsigned long scount[AFI_MAX][SAFI_MAX];
1106
d62a17ae 1107 /* Notify data. */
1108 struct bgp_notify notify;
1109
d62a17ae 1110 /* Filter structure. */
1111 struct bgp_filter filter[AFI_MAX][SAFI_MAX];
1112
70ee29b4
PM		 1113 /*
1114 * Parallel array to filter that indicates whether each filter
1115 * originates from a peer-group or if it is config that is specific to
1116 * this individual peer. If a filter is set independent of the
1117 * peer-group the appropriate bit should be set here. If this peer is a
1118 * peer-group, this memory region should be all zeros. The assumption
1119 * is that the default state for all flags is unset. Due to filters
1120 * having a direction (e.g. in/out/...), this array has a third
1121 * dimension for storing the overrides independently per direction.
1122 *
1123 * Notes:
1124 * - if a filter for an individual peer is unset, the corresponding
1125 * override flag is unset and the peer is considered to be back in
1126 * sync with the peer-group.
1127 * - This does *not* contain the filter values, rather it contains
1128 * whether the filter in filter (struct bgp_filter) is peer-specific.
1129 */
1130 uint8_t filter_override[AFI_MAX][SAFI_MAX][(FILTER_MAX > RMAP_MAX)
1131 ? FILTER_MAX
1132 : RMAP_MAX];
1133#define PEER_FT_DISTRIBUTE_LIST (1 << 0) /* distribute-list */
1134#define PEER_FT_FILTER_LIST (1 << 1) /* filter-list */
1135#define PEER_FT_PREFIX_LIST (1 << 2) /* prefix-list */
1136#define PEER_FT_ROUTE_MAP (1 << 3) /* route-map */
1137#define PEER_FT_UNSUPPRESS_MAP (1 << 4) /* unsuppress-map */
1138
d62a17ae 1139 /* ORF Prefix-list */
1140 struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX];
1141
1142 /* Text description of last attribute rcvd */
1143 char rcvd_attr_str[BUFSIZ];
1144
1145 /* Track if we printed the attribute in debugs */
1146 int rcvd_attr_printed;
1147
1148 /* Prefix count. */
1149 unsigned long pcount[AFI_MAX][SAFI_MAX];
1150
1151 /* Max prefix count. */
1152 unsigned long pmax[AFI_MAX][SAFI_MAX];
d7c0a89a
QY		 1153 uint8_t pmax_threshold[AFI_MAX][SAFI_MAX];
1154 uint16_t pmax_restart[AFI_MAX][SAFI_MAX];
e0701b79 1155#define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75
718e3744 1156
d62a17ae 1157 /* allowas-in. */
1158 char allowas_in[AFI_MAX][SAFI_MAX];
ac41b2a2 1159
d62a17ae 1160 /* weight */
1161 unsigned long weight[AFI_MAX][SAFI_MAX];
d93f7ffc 1162
d62a17ae 1163 /* peer reset cause */
1a1f4534 1164 uint8_t last_reset;
e0701b79 1165#define PEER_DOWN_RID_CHANGE 1 /* bgp router-id command */
1166#define PEER_DOWN_REMOTE_AS_CHANGE 2 /* neighbor remote-as command */
1167#define PEER_DOWN_LOCAL_AS_CHANGE 3 /* neighbor local-as command */
1168#define PEER_DOWN_CLID_CHANGE 4 /* bgp cluster-id command */
1169#define PEER_DOWN_CONFED_ID_CHANGE 5 /* bgp confederation identifier command */
1170#define PEER_DOWN_CONFED_PEER_CHANGE 6 /* bgp confederation peer command */
1171#define PEER_DOWN_RR_CLIENT_CHANGE 7 /* neighbor route-reflector-client command */
1172#define PEER_DOWN_RS_CLIENT_CHANGE 8 /* neighbor route-server-client command */
1173#define PEER_DOWN_UPDATE_SOURCE_CHANGE 9 /* neighbor update-source command */
1174#define PEER_DOWN_AF_ACTIVATE 10 /* neighbor activate command */
1175#define PEER_DOWN_USER_SHUTDOWN 11 /* neighbor shutdown command */
1176#define PEER_DOWN_USER_RESET 12 /* clear ip bgp command */
1177#define PEER_DOWN_NOTIFY_RECEIVED 13 /* notification received */
1178#define PEER_DOWN_NOTIFY_SEND 14 /* notification send */
1179#define PEER_DOWN_CLOSE_SESSION 15 /* tcp session close */
1180#define PEER_DOWN_NEIGHBOR_DELETE 16 /* neghbor delete */
1181#define PEER_DOWN_RMAP_BIND 17 /* neghbor peer-group command */
1182#define PEER_DOWN_RMAP_UNBIND 18 /* no neighbor peer-group command */
1183#define PEER_DOWN_CAPABILITY_CHANGE 19 /* neighbor capability command */
1184#define PEER_DOWN_PASSIVE_CHANGE 20 /* neighbor passive command */
1185#define PEER_DOWN_MULTIHOP_CHANGE 21 /* neighbor multihop command */
93406d87 1186#define PEER_DOWN_NSF_CLOSE_SESSION 22 /* NSF tcp session close */
8ffedcea 1187#define PEER_DOWN_V6ONLY_CHANGE 23 /* if-based peering v6only toggled */
7bbc6864 1188#define PEER_DOWN_BFD_DOWN 24 /* BFD down */
e60480bd
DD		 1189#define PEER_DOWN_IF_DOWN 25 /* Interface down */
1190#define PEER_DOWN_NBR_ADDR_DEL 26 /* Peer address lost */
1a1f4534 1191 size_t last_reset_cause_size;
d7c0a89a 1192 uint8_t last_reset_cause[BGP_MAX_PACKET_SIZE];
e0701b79 1193
d62a17ae 1194 /* The kind of route-map Flags.*/
d7c0a89a 1195 uint8_t rmap_type;
ac41b2a2 1196#define PEER_RMAP_TYPE_IN (1 << 0) /* neighbor route-map in */
1197#define PEER_RMAP_TYPE_OUT (1 << 1) /* neighbor route-map out */
1198#define PEER_RMAP_TYPE_NETWORK (1 << 2) /* network route-map */
1199#define PEER_RMAP_TYPE_REDISTRIBUTE (1 << 3) /* redistribute route-map */
1200#define PEER_RMAP_TYPE_DEFAULT (1 << 4) /* default-originate route-map */
1201#define PEER_RMAP_TYPE_NOSET (1 << 5) /* not allow to set commands */
fee0f4c6 1202#define PEER_RMAP_TYPE_IMPORT (1 << 6) /* neighbor route-map import */
1203#define PEER_RMAP_TYPE_EXPORT (1 << 7) /* neighbor route-map export */
6410e93a 1204
d62a17ae 1205 /* peer specific BFD information */
1206 struct bfd_info *bfd_info;
04b6bdc0 1207
d62a17ae 1208 /* hostname and domainname advertised by host */
1209 char *hostname;
1210 char *domainname;
19df7279 1211
d62a17ae 1212 QOBJ_FIELDS
718e3744 1213};
19df7279 1214DECLARE_QOBJ_TYPE(peer)
718e3744 1215
598ce6bd 1216/* Inherit peer attribute from peer-group. */
e7103a96
PM		 1217#define PEER_ATTR_INHERIT(peer, group, attr) \
1218 ((peer)->attr = (group)->conf->attr)
1219#define PEER_STR_ATTR_INHERIT(peer, group, attr, mt) \
598ce6bd
PM		 1220 do { \
1221 if ((peer)->attr) \
1222 XFREE(mt, (peer)->attr); \
e7103a96
PM		 1223 if ((group)->conf->attr) \
1224 (peer)->attr = XSTRDUP(mt, (group)->conf->attr); \
598ce6bd
PM		 1225 else \
1226 (peer)->attr = NULL; \
1227 } while (0)
a14810f4
PM		 1228#define PEER_SU_ATTR_INHERIT(peer, group, attr) \
1229 do { \
1230 if ((peer)->attr) \
1231 sockunion_free((peer)->attr); \
1232 if ((group)->conf->attr) \
1233 (peer)->attr = sockunion_dup((group)->conf->attr); \
1234 else \
1235 (peer)->attr = NULL; \
1236 } while (0)
598ce6bd 1237
ad4cbda1 1238/* Check if suppress start/restart of sessions to peer. */
d62a17ae 1239#define BGP_PEER_START_SUPPRESSED(P) \
1240 (CHECK_FLAG((P)->flags, PEER_FLAG_SHUTDOWN) \
1241 || CHECK_FLAG((P)->sflags, PEER_STATUS_PREFIX_OVERFLOW))
ad4cbda1 1242
0df7c91f
PJ		 1243#define PEER_PASSWORD_MINLEN (1)
1244#define PEER_PASSWORD_MAXLEN (80)
1245
718e3744 1246/* This structure's member directly points incoming packet data
1247 stream. */
d62a17ae 1248struct bgp_nlri {
1249 /* AFI. */
a46a2e9b 1250 uint16_t afi; /* iana_afi_t */
718e3744 1251
d62a17ae 1252 /* SAFI. */
a46a2e9b 1253 uint8_t safi; /* iana_safi_t */
718e3744 1254
d62a17ae 1255 /* Pointer to NLRI byte stream. */
d7c0a89a 1256 uint8_t *nlri;
718e3744 1257
d62a17ae 1258 /* Length of whole NLRI. */
1259 bgp_size_t length;
718e3744 1260};
1261
1262/* BGP versions. */
1263#define BGP_VERSION_4 4
718e3744 1264
1265/* Default BGP port number. */
1266#define BGP_PORT_DEFAULT 179
1267
718e3744 1268/* BGP minimum message size. */
1269#define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10)
1270#define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4)
1271#define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2)
1272#define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0)
1273#define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4)
1274#define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3)
1275
1276/* BGP message types. */
1277#define BGP_MSG_OPEN 1
1278#define BGP_MSG_UPDATE 2
1279#define BGP_MSG_NOTIFY 3
1280#define BGP_MSG_KEEPALIVE 4
1281#define BGP_MSG_ROUTE_REFRESH_NEW 5
1282#define BGP_MSG_CAPABILITY 6
1283#define BGP_MSG_ROUTE_REFRESH_OLD 128
1284
1285/* BGP open optional parameter. */
1286#define BGP_OPEN_OPT_AUTH 1
1287#define BGP_OPEN_OPT_CAP 2
1288
1289/* BGP4 attribute type codes. */
1290#define BGP_ATTR_ORIGIN 1
1291#define BGP_ATTR_AS_PATH 2
1292#define BGP_ATTR_NEXT_HOP 3
1293#define BGP_ATTR_MULTI_EXIT_DISC 4
1294#define BGP_ATTR_LOCAL_PREF 5
1295#define BGP_ATTR_ATOMIC_AGGREGATE 6
1296#define BGP_ATTR_AGGREGATOR 7
1297#define BGP_ATTR_COMMUNITIES 8
1298#define BGP_ATTR_ORIGINATOR_ID 9
1299#define BGP_ATTR_CLUSTER_LIST 10
1300#define BGP_ATTR_DPA 11
1301#define BGP_ATTR_ADVERTISER 12
1302#define BGP_ATTR_RCID_PATH 13
1303#define BGP_ATTR_MP_REACH_NLRI 14
1304#define BGP_ATTR_MP_UNREACH_NLRI 15
1305#define BGP_ATTR_EXT_COMMUNITIES 16
0b2aa3a0
PJ		 1306#define BGP_ATTR_AS4_PATH 17
1307#define BGP_ATTR_AS4_AGGREGATOR 18
41367172 1308#define BGP_ATTR_AS_PATHLIMIT 21
a21bd7a3 1309#define BGP_ATTR_PMSI_TUNNEL 22
f4c89855 1310#define BGP_ATTR_ENCAP 23
57d187bc 1311#define BGP_ATTR_LARGE_COMMUNITIES 32
c5a543b4 1312#define BGP_ATTR_PREFIX_SID 40
943d595a 1313#if ENABLE_BGP_VNC_ATTR
65efcfce
LB		 1314#define BGP_ATTR_VNC 255
1315#endif
718e3744 1316
1317/* BGP update origin. */
1318#define BGP_ORIGIN_IGP 0
1319#define BGP_ORIGIN_EGP 1
1320#define BGP_ORIGIN_INCOMPLETE 2
1321
1322/* BGP notify message codes. */
1323#define BGP_NOTIFY_HEADER_ERR 1
1324#define BGP_NOTIFY_OPEN_ERR 2
1325#define BGP_NOTIFY_UPDATE_ERR 3
1326#define BGP_NOTIFY_HOLD_ERR 4
1327#define BGP_NOTIFY_FSM_ERR 5
1328#define BGP_NOTIFY_CEASE 6
1329#define BGP_NOTIFY_CAPABILITY_ERR 7
718e3744 1330
4b4e07d2
DT		 1331#define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0
1332
718e3744 1333/* BGP_NOTIFY_HEADER_ERR sub codes. */
1334#define BGP_NOTIFY_HEADER_NOT_SYNC 1
1335#define BGP_NOTIFY_HEADER_BAD_MESLEN 2
1336#define BGP_NOTIFY_HEADER_BAD_MESTYPE 3
718e3744 1337
1338/* BGP_NOTIFY_OPEN_ERR sub codes. */
14051b36 1339#define BGP_NOTIFY_OPEN_MALFORMED_ATTR 0
718e3744 1340#define BGP_NOTIFY_OPEN_UNSUP_VERSION 1
1341#define BGP_NOTIFY_OPEN_BAD_PEER_AS 2
1342#define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3
1343#define BGP_NOTIFY_OPEN_UNSUP_PARAM 4
1344#define BGP_NOTIFY_OPEN_AUTH_FAILURE 5
1345#define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6
1346#define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7
718e3744 1347
1348/* BGP_NOTIFY_UPDATE_ERR sub codes. */
1349#define BGP_NOTIFY_UPDATE_MAL_ATTR 1
1350#define BGP_NOTIFY_UPDATE_UNREC_ATTR 2
1351#define BGP_NOTIFY_UPDATE_MISS_ATTR 3
1352#define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4
1353#define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5
1354#define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6
1355#define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7
1356#define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8
1357#define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9
1358#define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10
1359#define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11
718e3744 1360
4b4e07d2 1361/* BGP_NOTIFY_CEASE sub codes (RFC 4486). */
718e3744 1362#define BGP_NOTIFY_CEASE_MAX_PREFIX 1
1363#define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2
1364#define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3
1365#define BGP_NOTIFY_CEASE_ADMIN_RESET 4
1366#define BGP_NOTIFY_CEASE_CONNECT_REJECT 5
1367#define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6
545acafb 1368#define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7
1369#define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8
718e3744 1370
1371/* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */
1372#define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1
1373#define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2
1374#define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3
718e3744 1375
1376/* BGP finite state machine status. */
1377#define Idle 1
1378#define Connect 2
1379#define Active 3
1380#define OpenSent 4
1381#define OpenConfirm 5
1382#define Established 6
ca058a30
PJ		 1383#define Clearing 7
1384#define Deleted 8
1385#define BGP_STATUS_MAX 9
718e3744 1386
1387/* BGP finite state machine events. */
1388#define BGP_Start 1
1389#define BGP_Stop 2
1390#define TCP_connection_open 3
1391#define TCP_connection_closed 4
1392#define TCP_connection_open_failed 5
1393#define TCP_fatal_error 6
1394#define ConnectRetry_timer_expired 7
1395#define Hold_Timer_expired 8
1396#define KeepAlive_timer_expired 9
1397#define Receive_OPEN_message 10
1398#define Receive_KEEPALIVE_message 11
1399#define Receive_UPDATE_message 12
1400#define Receive_NOTIFICATION_message 13
ca058a30
PJ		 1401#define Clearing_Completed 14
1402#define BGP_EVENTS_MAX 15
718e3744 1403
1404/* BGP timers default value. */
8efe88ea 1405/* note: the DFLT_ ones depend on compile-time "defaults" selection */
5ca5f1c8 1406#define BGP_INIT_START_TIMER 1
8efe88ea
DL		 1407#define BGP_DEFAULT_HOLDTIME DFLT_BGP_HOLDTIME
1408#define BGP_DEFAULT_KEEPALIVE DFLT_BGP_KEEPALIVE
12179ba3 1409#define BGP_DEFAULT_EBGP_ROUTEADV 0
1670355a 1410#define BGP_DEFAULT_IBGP_ROUTEADV 0
8efe88ea 1411#define BGP_DEFAULT_CONNECT_RETRY DFLT_BGP_TIMERS_CONNECT
718e3744 1412
1413/* BGP default local preference. */
1414#define BGP_DEFAULT_LOCAL_PREF 100
1415
7f323236
DW		 1416/* BGP local-preference to send when 'bgp graceful-shutdown'
1417 * is configured */
1418#define BGP_GSHUT_LOCAL_PREF 0
1419
3f9c7369
DS		 1420/* BGP default subgroup packet queue max . */
1421#define BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX 40
1422
538621f2 1423/* BGP graceful restart */
1424#define BGP_DEFAULT_RESTART_TIME 120
1425#define BGP_DEFAULT_STALEPATH_TIME 360
1426
718e3744 1427/* BGP uptime string length. */
1428#define BGP_UPTIME_LEN 25
1429
1430/* Default configuration settings for bgpd. */
1431#define BGP_VTY_PORT 2605
718e3744 1432#define BGP_DEFAULT_CONFIG "bgpd.conf"
1433
1434/* Check AS path loop when we send NLRI. */
1435/* #define BGP_SEND_ASPATH_CHECK */
1436
f14e6fdb
DS		 1437/* BGP Dynamic Neighbors feature */
1438#define BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT 100
1439#define BGP_DYNAMIC_NEIGHBORS_LIMIT_MIN 1
1440#define BGP_DYNAMIC_NEIGHBORS_LIMIT_MAX 5000
1441
718e3744 1442/* Flag for peer_clear_soft(). */
d62a17ae 1443enum bgp_clear_type {
1444 BGP_CLEAR_SOFT_NONE,
1445 BGP_CLEAR_SOFT_OUT,
1446 BGP_CLEAR_SOFT_IN,
1447 BGP_CLEAR_SOFT_BOTH,
1448 BGP_CLEAR_SOFT_IN_ORF_PREFIX
718e3744 1449};
1450
1451/* Macros. */
424ab01d 1452#define BGP_INPUT(P) ((P)->curr)
2d34fb80 1453#define BGP_INPUT_PNT(P) (stream_pnt(BGP_INPUT(P)))
d62a17ae 1454#define BGP_IS_VALID_STATE_FOR_NOTIF(S) \
1455 (((S) == OpenSent) || ((S) == OpenConfirm) || ((S) == Established))
718e3744 1456
718e3744 1457/* BGP error codes. */
1458#define BGP_SUCCESS 0
1459#define BGP_ERR_INVALID_VALUE -1
1460#define BGP_ERR_INVALID_FLAG -2
1461#define BGP_ERR_INVALID_AS -3
1462#define BGP_ERR_INVALID_BGP -4
1463#define BGP_ERR_PEER_GROUP_MEMBER -5
c8560b44
DW		 1464#define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -7
1465#define BGP_ERR_PEER_GROUP_CANT_CHANGE -8
1466#define BGP_ERR_PEER_GROUP_MISMATCH -9
1467#define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -10
c8560b44
DW		 1468#define BGP_ERR_AS_MISMATCH -12
1469#define BGP_ERR_PEER_FLAG_CONFLICT -13
1470#define BGP_ERR_PEER_GROUP_SHUTDOWN -14
1471#define BGP_ERR_PEER_FILTER_CONFLICT -15
1472#define BGP_ERR_NOT_INTERNAL_PEER -16
1473#define BGP_ERR_REMOVE_PRIVATE_AS -17
1474#define BGP_ERR_AF_UNCONFIGURED -18
1475#define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -19
1476#define BGP_ERR_INSTANCE_MISMATCH -20
1477#define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -21
1478#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -22
1479#define BGP_ERR_TCPSIG_FAILED -23
1480#define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -24
1481#define BGP_ERR_NO_IBGP_WITH_TTLHACK -25
1482#define BGP_ERR_NO_INTERFACE_CONFIG -26
1483#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS -27
1484#define BGP_ERR_AS_OVERRIDE -28
1485#define BGP_ERR_INVALID_DYNAMIC_NEIGHBORS_LIMIT -29
1486#define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_EXISTS -30
1487#define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND -31
1488#define BGP_ERR_INVALID_FOR_DYNAMIC_PEER -32
1489#define BGP_ERR_MAX -33
63fa10b5 1490#define BGP_ERR_INVALID_FOR_DIRECT_PEER -34
9bedbb1e 1491#define BGP_ERR_PEER_SAFI_CONFLICT -35
718e3744 1492
3f9c7369
DS		 1493/*
1494 * Enumeration of different policy kinds a peer can be configured with.
1495 */
d62a17ae 1496typedef enum {
1497 BGP_POLICY_ROUTE_MAP,
1498 BGP_POLICY_FILTER_LIST,
1499 BGP_POLICY_PREFIX_LIST,
1500 BGP_POLICY_DISTRIBUTE_LIST,
3f9c7369
DS		 1501} bgp_policy_type_e;
1502
dcc68b5e
MS		 1503/* peer_flag_change_type. */
1504enum peer_change_type {
1505 peer_change_none,
1506 peer_change_reset,
1507 peer_change_reset_in,
1508 peer_change_reset_out,
1509};
1510
718e3744 1511extern struct bgp_master *bm;
37fe7731 1512extern unsigned int multipath_num;
718e3744 1513
718e3744 1514/* Prototypes. */
d62a17ae 1515extern void bgp_terminate(void);
1516extern void bgp_reset(void);
1517extern time_t bgp_clock(void);
1518extern void bgp_zclient_reset(void);
d62a17ae 1519extern struct bgp *bgp_get_default(void);
1520extern struct bgp *bgp_lookup(as_t, const char *);
1521extern struct bgp *bgp_lookup_by_name(const char *);
1522extern struct bgp *bgp_lookup_by_vrf_id(vrf_id_t);
e2f3a930
T		 1523extern struct bgp *bgp_get_evpn(void);
1524extern void bgp_set_evpn(struct bgp *bgp);
d62a17ae 1525extern struct peer *peer_lookup(struct bgp *, union sockunion *);
1526extern struct peer *peer_lookup_by_conf_if(struct bgp *, const char *);
04b6bdc0 1527extern struct peer *peer_lookup_by_hostname(struct bgp *, const char *);
d62a17ae 1528extern void bgp_peer_conf_if_to_su_update(struct peer *);
ffd0c037 1529extern int peer_group_listen_range_del(struct peer_group *, struct prefix *);
d62a17ae 1530extern struct peer_group *peer_group_lookup(struct bgp *, const char *);
1531extern struct peer_group *peer_group_get(struct bgp *, const char *);
1532extern struct peer *peer_create_bind_dynamic_neighbor(struct bgp *,
1533 union sockunion *,
1534 struct peer_group *);
1535extern struct prefix *
1536peer_group_lookup_dynamic_neighbor_range(struct peer_group *, struct prefix *);
1537extern struct peer_group *peer_group_lookup_dynamic_neighbor(struct bgp *,
1538 struct prefix *,
1539 struct prefix **);
1540extern struct peer *peer_lookup_dynamic_neighbor(struct bgp *,
1541 union sockunion *);
28066f4b
DS		 1542
1543/*
1544 * Peers are incredibly easy to memory leak
1545 * due to the various ways that they are actually used
1546 * Provide some functionality to debug locks and unlocks
1547 */
1548extern struct peer *peer_lock_with_caller(const char *, struct peer *);
1549extern struct peer *peer_unlock_with_caller(const char *, struct peer *);
1550#define peer_unlock(A) peer_unlock_with_caller(__FUNCTION__, (A))
1551#define peer_lock(B) peer_lock_with_caller(__FUNCTION__, (B))
1552
d62a17ae 1553extern bgp_peer_sort_t peer_sort(struct peer *peer);
1554extern int peer_active(struct peer *);
1555extern int peer_active_nego(struct peer *);
1556extern void bgp_recalculate_all_bestpaths(struct bgp *bgp);
a80beece 1557extern struct peer *peer_create(union sockunion *, const char *, struct bgp *,
d62a17ae 1558 as_t, as_t, int, afi_t, safi_t,
1559 struct peer_group *);
1560extern struct peer *peer_create_accept(struct bgp *);
1561extern void peer_xfer_config(struct peer *dst, struct peer *src);
94d4c685
DS		 1562extern char *peer_uptime(time_t uptime2, char *buf, size_t len, bool use_json,
1563 json_object *json);
856ca177 1564
d62a17ae 1565extern int bgp_config_write(struct vty *);
6b0655a2 1566
d62a17ae 1567extern void bgp_master_init(struct thread_master *master);
718e3744 1568
f533be73 1569extern void bgp_init(unsigned short instance);
419dfe6a 1570extern void bgp_pthreads_run(void);
2d4ee774 1571extern void bgp_pthreads_finish(void);
d62a17ae 1572extern void bgp_route_map_init(void);
1573extern void bgp_session_reset(struct peer *);
718e3744 1574
d62a17ae 1575extern int bgp_option_set(int);
1576extern int bgp_option_unset(int);
1577extern int bgp_option_check(int);
718e3744 1578
d62a17ae 1579extern int bgp_get(struct bgp **, as_t *, const char *, enum bgp_instance_type);
1580extern void bgp_instance_up(struct bgp *);
1581extern void bgp_instance_down(struct bgp *);
1582extern int bgp_delete(struct bgp *);
718e3744 1583
e5619c28
PG		 1584extern int bgp_handle_socket(struct bgp *bgp, struct vrf *vrf,
1585 vrf_id_t old_vrf_id, bool create);
1586
d62a17ae 1587extern int bgp_flag_set(struct bgp *, int);
1588extern int bgp_flag_unset(struct bgp *, int);
1589extern int bgp_flag_check(struct bgp *, int);
718e3744 1590
d62a17ae 1591extern void bgp_router_id_zebra_bump(vrf_id_t, const struct prefix *);
1592extern int bgp_router_id_static_set(struct bgp *, struct in_addr);
718e3744 1593
d62a17ae 1594extern int bgp_cluster_id_set(struct bgp *, struct in_addr *);
1595extern int bgp_cluster_id_unset(struct bgp *);
718e3744 1596
d62a17ae 1597extern int bgp_confederation_id_set(struct bgp *, as_t);
1598extern int bgp_confederation_id_unset(struct bgp *);
1599extern int bgp_confederation_peers_check(struct bgp *, as_t);
718e3744 1600
d62a17ae 1601extern int bgp_confederation_peers_add(struct bgp *, as_t);
1602extern int bgp_confederation_peers_remove(struct bgp *, as_t);
718e3744 1603
d7c0a89a 1604extern int bgp_timers_set(struct bgp *, uint32_t keepalive, uint32_t holdtime);
d62a17ae 1605extern int bgp_timers_unset(struct bgp *);
718e3744 1606
d7c0a89a 1607extern int bgp_default_local_preference_set(struct bgp *, uint32_t);
d62a17ae 1608extern int bgp_default_local_preference_unset(struct bgp *);
718e3744 1609
d7c0a89a 1610extern int bgp_default_subgroup_pkt_queue_max_set(struct bgp *bgp, uint32_t);
d62a17ae 1611extern int bgp_default_subgroup_pkt_queue_max_unset(struct bgp *bgp);
3f9c7369 1612
d62a17ae 1613extern int bgp_listen_limit_set(struct bgp *, int);
1614extern int bgp_listen_limit_unset(struct bgp *);
f14e6fdb 1615
d62a17ae 1616extern int bgp_update_delay_active(struct bgp *);
1617extern int bgp_update_delay_configured(struct bgp *);
318cac96 1618extern int bgp_afi_safi_peer_exists(struct bgp *bgp, afi_t afi, safi_t safi);
d62a17ae 1619extern void peer_as_change(struct peer *, as_t, int);
1620extern int peer_remote_as(struct bgp *, union sockunion *, const char *, as_t *,
1621 int, afi_t, safi_t);
1622extern int peer_group_remote_as(struct bgp *, const char *, as_t *, int);
1623extern int peer_delete(struct peer *peer);
1624extern int peer_group_delete(struct peer_group *);
1625extern int peer_group_remote_as_delete(struct peer_group *);
f14e6fdb 1626extern int peer_group_listen_range_add(struct peer_group *, struct prefix *);
718e3744 1627
d62a17ae 1628extern int peer_activate(struct peer *, afi_t, safi_t);
1629extern int peer_deactivate(struct peer *, afi_t, safi_t);
1630extern int peer_afc_set(struct peer *, afi_t, safi_t, int);
718e3744 1631
d62a17ae 1632extern int peer_group_bind(struct bgp *, union sockunion *, struct peer *,
1633 struct peer_group *, as_t *);
718e3744 1634
d7c0a89a
QY		 1635extern int peer_flag_set(struct peer *, uint32_t);
1636extern int peer_flag_unset(struct peer *, uint32_t);
9fb964de 1637extern void peer_flag_inherit(struct peer *peer, uint32_t flag);
718e3744 1638
d7c0a89a
QY		 1639extern int peer_af_flag_set(struct peer *, afi_t, safi_t, uint32_t);
1640extern int peer_af_flag_unset(struct peer *, afi_t, safi_t, uint32_t);
1641extern int peer_af_flag_check(struct peer *, afi_t, safi_t, uint32_t);
cf9ac8bf
PM		 1642extern void peer_af_flag_inherit(struct peer *peer, afi_t afi, safi_t safi,
1643 uint32_t flag);
dcc68b5e
MS		 1644extern void peer_change_action(struct peer *peer, afi_t afi, safi_t safi,
1645 enum peer_change_type type);
718e3744 1646
d62a17ae 1647extern int peer_ebgp_multihop_set(struct peer *, int);
1648extern int peer_ebgp_multihop_unset(struct peer *);
1649extern int is_ebgp_multihop_configured(struct peer *peer);
718e3744 1650
d62a17ae 1651extern int peer_description_set(struct peer *, const char *);
1652extern int peer_description_unset(struct peer *);
718e3744 1653
d62a17ae 1654extern int peer_update_source_if_set(struct peer *, const char *);
1655extern int peer_update_source_addr_set(struct peer *, const union sockunion *);
1656extern int peer_update_source_unset(struct peer *);
718e3744 1657
1de27621
DA		 1658extern int peer_default_originate_set(struct peer *peer, afi_t afi, safi_t safi,
1659 const char *rmap,
1660 struct route_map *route_map);
d62a17ae 1661extern int peer_default_originate_unset(struct peer *, afi_t, safi_t);
718e3744 1662
d7c0a89a 1663extern int peer_port_set(struct peer *, uint16_t);
d62a17ae 1664extern int peer_port_unset(struct peer *);
718e3744 1665
d7c0a89a 1666extern int peer_weight_set(struct peer *, afi_t, safi_t, uint16_t);
d62a17ae 1667extern int peer_weight_unset(struct peer *, afi_t, safi_t);
718e3744 1668
d7c0a89a
QY		 1669extern int peer_timers_set(struct peer *, uint32_t keepalive,
1670 uint32_t holdtime);
d62a17ae 1671extern int peer_timers_unset(struct peer *);
718e3744 1672
d7c0a89a 1673extern int peer_timers_connect_set(struct peer *, uint32_t);
d62a17ae 1674extern int peer_timers_connect_unset(struct peer *);
718e3744 1675
d7c0a89a 1676extern int peer_advertise_interval_set(struct peer *, uint32_t);
d62a17ae 1677extern int peer_advertise_interval_unset(struct peer *);
718e3744 1678
d62a17ae 1679extern void peer_interface_set(struct peer *, const char *);
1680extern void peer_interface_unset(struct peer *);
718e3744 1681
d62a17ae 1682extern int peer_distribute_set(struct peer *, afi_t, safi_t, int, const char *);
1683extern int peer_distribute_unset(struct peer *, afi_t, safi_t, int);
718e3744 1684
d62a17ae 1685extern int peer_allowas_in_set(struct peer *, afi_t, safi_t, int, int);
1686extern int peer_allowas_in_unset(struct peer *, afi_t, safi_t);
718e3744 1687
d62a17ae 1688extern int peer_local_as_set(struct peer *, as_t, int, int);
1689extern int peer_local_as_unset(struct peer *);
718e3744 1690
d62a17ae 1691extern int peer_prefix_list_set(struct peer *, afi_t, safi_t, int,
1692 const char *);
1693extern int peer_prefix_list_unset(struct peer *, afi_t, safi_t, int);
718e3744 1694
d62a17ae 1695extern int peer_aslist_set(struct peer *, afi_t, safi_t, int, const char *);
1696extern int peer_aslist_unset(struct peer *, afi_t, safi_t, int);
718e3744 1697
1de27621
DA		 1698extern int peer_route_map_set(struct peer *peer, afi_t afi, safi_t safi, int,
1699 const char *name, struct route_map *route_map);
d62a17ae 1700extern int peer_route_map_unset(struct peer *, afi_t, safi_t, int);
718e3744 1701
1de27621
DA		 1702extern int peer_unsuppress_map_set(struct peer *peer, afi_t afi, safi_t safi,
1703 const char *name,
1704 struct route_map *route_map);
0df7c91f 1705
d62a17ae 1706extern int peer_password_set(struct peer *, const char *);
1707extern int peer_password_unset(struct peer *);
0df7c91f 1708
d62a17ae 1709extern int peer_unsuppress_map_unset(struct peer *, afi_t, safi_t);
718e3744 1710
d7c0a89a
QY		 1711extern int peer_maximum_prefix_set(struct peer *, afi_t, safi_t, uint32_t,
1712 uint8_t, int, uint16_t);
d62a17ae 1713extern int peer_maximum_prefix_unset(struct peer *, afi_t, safi_t);
718e3744 1714
d62a17ae 1715extern int peer_clear(struct peer *, struct listnode **);
1716extern int peer_clear_soft(struct peer *, afi_t, safi_t, enum bgp_clear_type);
93406d87 1717
d62a17ae 1718extern int peer_ttl_security_hops_set(struct peer *, int);
1719extern int peer_ttl_security_hops_unset(struct peer *);
fa411a21 1720
d62a17ae 1721extern int peer_tx_shutdown_message_set(struct peer *, const char *msg);
1722extern int peer_tx_shutdown_message_unset(struct peer *);
73d70fa6 1723
d62a17ae 1724extern int bgp_route_map_update_timer(struct thread *thread);
518f0eb1 1725extern void bgp_route_map_terminate(void);
16286195 1726
d62a17ae 1727extern int peer_cmp(struct peer *p1, struct peer *p2);
3f9c7369 1728
5c525538 1729extern int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi, iana_safi_t pkt_safi,
d62a17ae 1730 afi_t *afi, safi_t *safi);
1731extern int bgp_map_afi_safi_int2iana(afi_t afi, safi_t safi,
a4d82a8a
PZ		 1732 iana_afi_t *pkt_afi,
1733 iana_safi_t *pkt_safi);
9cabb64b 1734
d62a17ae 1735extern struct peer_af *peer_af_create(struct peer *, afi_t, safi_t);
1736extern struct peer_af *peer_af_find(struct peer *, afi_t, safi_t);
1737extern int peer_af_delete(struct peer *, afi_t, safi_t);
3f9c7369 1738
ffd0c037 1739extern void bgp_close(void);
92375c91
JB		 1740extern void bgp_free(struct bgp *);
1741
1742static inline struct bgp *bgp_lock(struct bgp *bgp)
1743{
1744 bgp->lock++;
1745 return bgp;
1746}
1747
1748static inline void bgp_unlock(struct bgp *bgp)
1749{
1750 assert(bgp->lock > 0);
1751 if (--bgp->lock == 0)
1752 bgp_free(bgp);
1753}
ffd0c037 1754
d62a17ae 1755static inline int afindex(afi_t afi, safi_t safi)
3f9c7369 1756{
d62a17ae 1757 switch (afi) {
1758 case AFI_IP:
1759 switch (safi) {
1760 case SAFI_UNICAST:
1761 return BGP_AF_IPV4_UNICAST;
1762 break;
1763 case SAFI_MULTICAST:
1764 return BGP_AF_IPV4_MULTICAST;
1765 break;
1766 case SAFI_LABELED_UNICAST:
1767 return BGP_AF_IPV4_LBL_UNICAST;
1768 break;
1769 case SAFI_MPLS_VPN:
1770 return BGP_AF_IPV4_VPN;
1771 break;
1772 case SAFI_ENCAP:
1773 return BGP_AF_IPV4_ENCAP;
1774 break;
7c40bf39 1775 case SAFI_FLOWSPEC:
1776 return BGP_AF_IPV4_FLOWSPEC;
d62a17ae 1777 default:
1778 return BGP_AF_MAX;
1779 break;
1780 }
1781 break;
1782 case AFI_IP6:
1783 switch (safi) {
1784 case SAFI_UNICAST:
1785 return BGP_AF_IPV6_UNICAST;
1786 break;
1787 case SAFI_MULTICAST:
1788 return BGP_AF_IPV6_MULTICAST;
1789 break;
1790 case SAFI_LABELED_UNICAST:
1791 return BGP_AF_IPV6_LBL_UNICAST;
1792 break;
1793 case SAFI_MPLS_VPN:
1794 return BGP_AF_IPV6_VPN;
1795 break;
1796 case SAFI_ENCAP:
1797 return BGP_AF_IPV6_ENCAP;
1798 break;
7c40bf39 1799 case SAFI_FLOWSPEC:
1800 return BGP_AF_IPV6_FLOWSPEC;
d62a17ae 1801 default:
1802 return BGP_AF_MAX;
1803 break;
1804 }
1805 break;
1806 case AFI_L2VPN:
1807 switch (safi) {
1808 case SAFI_EVPN:
1809 return BGP_AF_L2VPN_EVPN;
1810 break;
1811 default:
1812 return BGP_AF_MAX;
1813 break;
1814 }
3f9c7369 1815 default:
d62a17ae 1816 return BGP_AF_MAX;
1817 break;
3f9c7369 1818 }
3f9c7369
DS		 1819}
1820
c8560b44 1821/* If the peer is not a peer-group but is bound to a peer-group return 1 */
d62a17ae 1822static inline int peer_group_active(struct peer *peer)
3f9c7369 1823{
d62a17ae 1824 if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) && peer->group)
1825 return 1;
1826 return 0;
3f9c7369
DS		 1827}
1828
1829/* If peer is negotiated at least one address family return 1. */
d62a17ae 1830static inline int peer_afi_active_nego(const struct peer *peer, afi_t afi)
3f9c7369 1831{
d62a17ae 1832 if (peer->afc_nego[afi][SAFI_UNICAST]
1833 || peer->afc_nego[afi][SAFI_MULTICAST]
1834 || peer->afc_nego[afi][SAFI_LABELED_UNICAST]
1835 || peer->afc_nego[afi][SAFI_MPLS_VPN]
1836 || peer->afc_nego[afi][SAFI_ENCAP]
7c40bf39 1837 || peer->afc_nego[afi][SAFI_FLOWSPEC]
d62a17ae 1838 || peer->afc_nego[afi][SAFI_EVPN])
1839 return 1;
1840 return 0;
3f9c7369
DS		 1841}
1842
f14e6fdb 1843/* If at least one address family activated for group, return 1. */
d62a17ae 1844static inline int peer_group_af_configured(struct peer_group *group)
f14e6fdb 1845{
d62a17ae 1846 struct peer *peer = group->conf;
1847
1848 if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST]
1849 || peer->afc[AFI_IP][SAFI_LABELED_UNICAST]
7c40bf39 1850 || peer->afc[AFI_IP][SAFI_FLOWSPEC]
d62a17ae 1851 || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP]
1852 || peer->afc[AFI_IP6][SAFI_UNICAST]
1853 || peer->afc[AFI_IP6][SAFI_MULTICAST]
1854 || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST]
1855 || peer->afc[AFI_IP6][SAFI_MPLS_VPN]
ba0fcaf6 1856 || peer->afc[AFI_IP6][SAFI_ENCAP]
7c40bf39 1857 || peer->afc[AFI_IP6][SAFI_FLOWSPEC]
ba0fcaf6 1858 || peer->afc[AFI_L2VPN][SAFI_EVPN])
d62a17ae 1859 return 1;
1860 return 0;
f14e6fdb
DS		 1861}
1862
d62a17ae 1863static inline char *timestamp_string(time_t ts)
3f9c7369 1864{
d62a17ae 1865 time_t tbuf;
1866 tbuf = time(NULL) - (bgp_clock() - ts);
1867 return ctime(&tbuf);
3f9c7369
DS		 1868}
1869
d62a17ae 1870static inline int peer_established(struct peer *peer)
3f9c7369 1871{
d62a17ae 1872 if (peer->status == Established)
1873 return 1;
1874 return 0;
3f9c7369
DS		 1875}
1876
d62a17ae 1877static inline int peer_dynamic_neighbor(struct peer *peer)
f14e6fdb 1878{
d62a17ae 1879 return (CHECK_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR)) ? 1 : 0;
f14e6fdb
DS		 1880}
1881
d62a17ae 1882static inline int peer_cap_enhe(struct peer *peer, afi_t afi, safi_t safi)
8a92a8a0 1883{
d62a17ae 1884 return (CHECK_FLAG(peer->af_cap[afi][safi], PEER_CAP_ENHE_AF_NEGO));
8a92a8a0
DS		 1885}
1886
d1be1f08 1887/* Lookup VRF for BGP instance based on its type. */
d62a17ae 1888static inline struct vrf *bgp_vrf_lookup_by_instance_type(struct bgp *bgp)
d1be1f08 1889{
d62a17ae 1890 struct vrf *vrf;
d1be1f08 1891
d62a17ae 1892 if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)
1893 vrf = vrf_lookup_by_id(VRF_DEFAULT);
1894 else if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF)
1895 vrf = vrf_lookup_by_name(bgp->name);
1896 else
1897 vrf = NULL;
d1be1f08 1898
d62a17ae 1899 return vrf;
d1be1f08 1900}
1901
1902/* Link BGP instance to VRF. */
d62a17ae 1903static inline void bgp_vrf_link(struct bgp *bgp, struct vrf *vrf)
d1be1f08 1904{
d62a17ae 1905 bgp->vrf_id = vrf->vrf_id;
92375c91
JB		 1906 if (vrf->info != (void *)bgp)
1907 vrf->info = (void *)bgp_lock(bgp);
d1be1f08 1908}
1909
1910/* Unlink BGP instance from VRF. */
d62a17ae 1911static inline void bgp_vrf_unlink(struct bgp *bgp, struct vrf *vrf)
d1be1f08 1912{
d62a17ae 1913 if (vrf->info == (void *)bgp) {
1914 vrf->info = NULL;
1915 bgp_unlock(bgp);
1916 }
1917 bgp->vrf_id = VRF_UNKNOWN;
d1be1f08 1918}
1919
401d56cc 1920extern void bgp_unset_redist_vrf_bitmaps(struct bgp *, vrf_id_t);
65efcfce
LB		 1921
1922/* For benefit of rfapi */
d62a17ae 1923extern struct peer *peer_new(struct bgp *bgp);
00d252cb 1924#endif /* _QUAGGA_BGPD_H */
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