]> git.proxmox.com Git - mirror_frr.git/blame - bgpd/bgpd.h
projects / mirror_frr.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
bgpd: [7.1] Strip `delete` keyword when looking up for lcommuni… (#4786)
[mirror_frr.git] / bgpd / bgpd.h
CommitLineData
718e3744 1/* BGP message definition header.
896014f4
DL		 2 * Copyright (C) 1996, 97, 98, 99, 2000 Kunihiro Ishiguro
3 *
4 * This file is part of GNU Zebra.
5 *
6 * GNU Zebra is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2, or (at your option) any
9 * later version.
10 *
11 * GNU Zebra is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with this program; see the file COPYING; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 */
718e3744 20
00d252cb 21#ifndef _QUAGGA_BGPD_H
22#define _QUAGGA_BGPD_H
23
19df7279 24#include "qobj.h"
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"
6aeb9e78 31
718e3744 32/* For union sockunion. */
3f9c7369 33#include "queue.h"
718e3744 34#include "sockunion.h"
518f0eb1 35#include "routemap.h"
ffd0c037 36#include "linklist.h"
8efe88ea 37#include "defaults.h"
4a1ab8e4 38#include "bgp_memory.h"
14c1a7bf 39#include "bitfield.h"
fe1dc5a3 40#include "vxlan.h"
955bfd98 41#include "bgp_labelpool.h"
dcc68b5e 42#include "bgp_addpath_types.h"
718e3744 43
04b6bdc0 44#define BGP_MAX_HOSTNAME 64 /* Linux max, is larger than most other sys */
40520c36 45#define BGP_PEER_MAX_HASH_SIZE 16384
04b6bdc0 46
5c81b96a 47/* Default interval for IPv6 RAs when triggered by BGP unnumbered neighbor. */
48#define BGP_UNNUM_DEFAULT_RA_INTERVAL 10
49
3f9c7369
DS		 50struct update_subgroup;
51struct bpacket;
4762c213 52struct bgp_pbr_config;
3f9c7369 53
0299c004
DS		 54/*
55 * Allow the neighbor XXXX remote-as to take internal or external
d62a17ae 56 * AS_SPECIFIED is zero to auto-inherit original non-feature/enhancement
57 * behavior
0299c004
DS		 58 * in the system.
59 */
d62a17ae 60enum { AS_UNSPECIFIED = 0,
61 AS_SPECIFIED,
62 AS_INTERNAL,
63 AS_EXTERNAL,
0299c004
DS		 64};
65
718e3744 66/* Typedef BGP specific types. */
d7c0a89a
QY		 67typedef uint32_t as_t;
68typedef uint16_t as16_t; /* we may still encounter 16 Bit asnums */
69typedef uint16_t bgp_size_t;
718e3744 70
d62a17ae 71#define max(a, b) \
72 ({ \
73 __typeof__(a) _a = (a); \
74 __typeof__(b) _b = (b); \
75 _a > _b ? _a : _b; \
76 })
77
78enum bgp_af_index {
79 BGP_AF_START,
80 BGP_AF_IPV4_UNICAST = BGP_AF_START,
81 BGP_AF_IPV4_MULTICAST,
82 BGP_AF_IPV4_VPN,
83 BGP_AF_IPV6_UNICAST,
84 BGP_AF_IPV6_MULTICAST,
85 BGP_AF_IPV6_VPN,
86 BGP_AF_IPV4_ENCAP,
87 BGP_AF_IPV6_ENCAP,
88 BGP_AF_L2VPN_EVPN,
89 BGP_AF_IPV4_LBL_UNICAST,
90 BGP_AF_IPV6_LBL_UNICAST,
7c40bf39 91 BGP_AF_IPV4_FLOWSPEC,
92 BGP_AF_IPV6_FLOWSPEC,
d62a17ae 93 BGP_AF_MAX
3f9c7369
DS		 94};
95
d62a17ae 96#define AF_FOREACH(af) for ((af) = BGP_AF_START; (af) < BGP_AF_MAX; (af)++)
3f9c7369 97
d62a17ae 98#define FOREACH_AFI_SAFI(afi, safi) \
99 for (afi = AFI_IP; afi < AFI_MAX; afi++) \
100 for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++)
3f9c7369 101
d1927ebe
AS		 102#define FOREACH_SAFI(safi) \
103 for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++)
3f9c7369 104
1ac267a2
DL		 105extern struct frr_pthread *bgp_pth_io;
106extern struct frr_pthread *bgp_pth_ka;
107
718e3744 108/* BGP master for system wide configurations and variables. */
d62a17ae 109struct bgp_master {
110 /* BGP instance list. */
111 struct list *bgp;
112
113 /* BGP thread master. */
114 struct thread_master *master;
718e3744 115
d62a17ae 116 /* work queues */
117 struct work_queue *process_main_queue;
87d4a781 118
d62a17ae 119 /* Listening sockets */
120 struct list *listen_sockets;
718e3744 121
d62a17ae 122 /* BGP port number. */
d7c0a89a 123 uint16_t port;
3a02d1f7 124
d62a17ae 125 /* Listener address */
126 char *address;
718e3744 127
48ecf8f5
DS		 128 /* The Mac table */
129 struct hash *self_mac_hash;
130
d62a17ae 131 /* BGP start time. */
132 time_t start_time;
133
134 /* Various BGP global configuration. */
d7c0a89a 135 uint8_t options;
718e3744 136#define BGP_OPT_NO_FIB (1 << 0)
137#define BGP_OPT_MULTIPLE_INSTANCE (1 << 1)
138#define BGP_OPT_CONFIG_CISCO (1 << 2)
cccbc015 139#define BGP_OPT_NO_LISTEN (1 << 3)
0b014ea6 140#define BGP_OPT_NO_ZEBRA (1 << 4)
3f9c7369 141
d62a17ae 142 uint64_t updgrp_idspace;
143 uint64_t subgrp_idspace;
5fe9f963 144
d62a17ae 145 /* timer to dampen route map changes */
146 struct thread *t_rmap_update; /* Handle route map updates */
d7c0a89a 147 uint32_t rmap_update_timer; /* Route map update timer */
5fe9f963 148#define RMAP_DEFAULT_UPDATE_TIMER 5 /* disabled by default */
19df7279 149
e9eb5f63 150 /* Id space for automatic RD derivation for an EVI/VRF */
151 bitfield_t rd_idspace;
152
955bfd98
PZ		 153 /* dynamic mpls label allocation pool */
154 struct labelpool labelpool;
155
e2f3a930
T		 156 /* BGP-EVPN VRF ID. Defaults to default VRF (if any) */
157 struct bgp* bgp_evpn;
158
97b4a0ec 159 bool terminating; /* global flag that sigint terminate seen */
d62a17ae 160 QOBJ_FIELDS
718e3744 161};
19df7279 162DECLARE_QOBJ_TYPE(bgp_master)
718e3744 163
73ac8160 164/* BGP route-map structure. */
d62a17ae 165struct bgp_rmap {
166 char *name;
167 struct route_map *map;
73ac8160
DS		 168};
169
d62a17ae 170struct bgp_redist {
d7c0a89a 171 unsigned short instance;
7c8ff89e 172
d62a17ae 173 /* BGP redistribute metric configuration. */
d7c0a89a
QY		 174 uint8_t redist_metric_flag;
175 uint32_t redist_metric;
7c8ff89e 176
d62a17ae 177 /* BGP redistribute route-map. */
178 struct bgp_rmap rmap;
7c8ff89e
DS		 179};
180
ddb5b488
PZ		 181typedef enum {
182 BGP_VPN_POLICY_DIR_FROMVPN = 0,
183 BGP_VPN_POLICY_DIR_TOVPN = 1,
184 BGP_VPN_POLICY_DIR_MAX = 2
185} vpn_policy_direction_t;
186
e70e9f8e
PZ		 187struct vpn_policy {
188 struct bgp *bgp; /* parent */
189 afi_t afi;
190 struct ecommunity *rtlist[BGP_VPN_POLICY_DIR_MAX];
191 struct ecommunity *import_redirect_rtlist;
192 char *rmap_name[BGP_VPN_POLICY_DIR_MAX];
193 struct route_map *rmap[BGP_VPN_POLICY_DIR_MAX];
194
195 /* should be mpls_label_t? */
196 uint32_t tovpn_label; /* may be MPLS_LABEL_NONE */
197 uint32_t tovpn_zebra_vrf_label_last_sent;
198 struct prefix_rd tovpn_rd;
199 struct prefix tovpn_nexthop; /* unset => set to 0 */
200 uint32_t flags;
201#define BGP_VPN_POLICY_TOVPN_LABEL_AUTO (1 << 0)
202#define BGP_VPN_POLICY_TOVPN_RD_SET (1 << 1)
203#define BGP_VPN_POLICY_TOVPN_NEXTHOP_SET (1 << 2)
12a844a5 204
1d4e8b0d
DS		 205 /*
206 * If we are importing another vrf into us keep a list of
207 * vrf names that are being imported into us.
208 */
12a844a5 209 struct list *import_vrf;
1d4e8b0d
DS		 210
211 /*
212 * if we are being exported to another vrf keep a list of
213 * vrf names that we are being exported to.
214 */
12a844a5 215 struct list *export_vrf;
e70e9f8e
PZ		 216};
217
ad4cbda1 218/*
219 * Type of 'struct bgp'.
220 * - Default: The default instance
221 * - VRF: A specific (non-default) VRF
222 * - View: An instance used for route exchange
223 * The "default" instance is treated separately to simplify the code. Note
224 * that if deployed in a Multi-VRF environment, it may not exist.
225 */
d62a17ae 226enum bgp_instance_type {
227 BGP_INSTANCE_TYPE_DEFAULT,
228 BGP_INSTANCE_TYPE_VRF,
229 BGP_INSTANCE_TYPE_VIEW
ad4cbda1 230};
231
718e3744 232/* BGP instance structure. */
d62a17ae 233struct bgp {
234 /* AS number of this BGP instance. */
235 as_t as;
236
237 /* Name of this BGP instance. */
238 char *name;
3572fb26 239 char *name_pretty; /* printable "VRF|VIEW name|default" */
d62a17ae 240
241 /* Type of instance and VRF id. */
242 enum bgp_instance_type inst_type;
243 vrf_id_t vrf_id;
244
245 /* Reference count to allow peer_delete to finish after bgp_delete */
246 int lock;
247
248 /* Self peer. */
249 struct peer *peer_self;
250
251 /* BGP peer. */
252 struct list *peer;
253 struct hash *peerhash;
254
255 /* BGP peer group. */
256 struct list *group;
257
258 /* The maximum number of BGP dynamic neighbors that can be created */
259 int dynamic_neighbors_limit;
260
261 /* The current number of BGP dynamic neighbors */
262 int dynamic_neighbors_count;
263
264 struct hash *update_groups[BGP_AF_MAX];
265
266 /*
267 * Global statistics for update groups.
268 */
269 struct {
d7c0a89a
QY		 270 uint32_t join_events;
271 uint32_t prune_events;
272 uint32_t merge_events;
273 uint32_t split_events;
274 uint32_t updgrp_switch_events;
275 uint32_t peer_refreshes_combined;
276 uint32_t adj_count;
277 uint32_t merge_checks_triggered;
278
279 uint32_t updgrps_created;
280 uint32_t updgrps_deleted;
281 uint32_t subgrps_created;
282 uint32_t subgrps_deleted;
d62a17ae 283 } update_group_stats;
284
285 /* BGP configuration. */
d7c0a89a 286 uint16_t config;
c2d58d6d 287#define BGP_CONFIG_CLUSTER_ID (1 << 0)
288#define BGP_CONFIG_CONFEDERATION (1 << 1)
718e3744 289
d62a17ae 290 /* BGP router identifier. */
291 struct in_addr router_id;
292 struct in_addr router_id_static;
293 struct in_addr router_id_zebra;
718e3744 294
d62a17ae 295 /* BGP route reflector cluster ID. */
296 struct in_addr cluster_id;
718e3744 297
d62a17ae 298 /* BGP confederation information. */
299 as_t confed_id;
300 as_t *confed_peers;
301 int confed_peers_cnt;
718e3744 302
d62a17ae 303 struct thread
304 *t_startup; /* start-up timer on only once at the beginning */
abc920f8 305
d7c0a89a 306 uint32_t v_maxmed_onstartup; /* Duration of max-med on start-up */
abc920f8 307#define BGP_MAXMED_ONSTARTUP_UNCONFIGURED 0 /* 0 means off, its the default */
d7c0a89a
QY		 308 uint32_t maxmed_onstartup_value; /* Max-med value when active on
309 start-up */
d62a17ae 310 struct thread
311 *t_maxmed_onstartup; /* non-null when max-med onstartup is on */
d7c0a89a 312 uint8_t maxmed_onstartup_over; /* Flag to make it effective only once */
d62a17ae 313
d7c0a89a 314 uint8_t v_maxmed_admin; /* 1/0 if max-med administrative is on/off */
abc920f8 315#define BGP_MAXMED_ADMIN_UNCONFIGURED 0 /* Off by default */
d7c0a89a
QY		 316 uint32_t maxmed_admin_value; /* Max-med value when administrative in on
317 */
abc920f8
DS		 318#define BGP_MAXMED_VALUE_DEFAULT 4294967294 /* Maximum by default */
319
d7c0a89a
QY		 320 uint8_t maxmed_active; /* 1/0 if max-med is active or not */
321 uint32_t maxmed_value; /* Max-med value when its active */
d62a17ae 322
323 /* BGP update delay on startup */
324 struct thread *t_update_delay;
325 struct thread *t_establish_wait;
d7c0a89a
QY		 326 uint8_t update_delay_over;
327 uint8_t main_zebra_update_hold;
328 uint8_t main_peers_update_hold;
329 uint16_t v_update_delay;
330 uint16_t v_establish_wait;
d62a17ae 331 char update_delay_begin_time[64];
332 char update_delay_end_time[64];
333 char update_delay_zebra_resume_time[64];
334 char update_delay_peers_resume_time[64];
d7c0a89a
QY		 335 uint32_t established;
336 uint32_t restarted_peers;
337 uint32_t implicit_eors;
338 uint32_t explicit_eors;
f188f2c4
DS		 339#define BGP_UPDATE_DELAY_DEF 0
340#define BGP_UPDATE_DELAY_MIN 0
341#define BGP_UPDATE_DELAY_MAX 3600
342
d62a17ae 343 /* BGP flags. */
d7c0a89a 344 uint32_t flags;
718e3744 345#define BGP_FLAG_ALWAYS_COMPARE_MED (1 << 0)
346#define BGP_FLAG_DETERMINISTIC_MED (1 << 1)
347#define BGP_FLAG_MED_MISSING_AS_WORST (1 << 2)
348#define BGP_FLAG_MED_CONFED (1 << 3)
349#define BGP_FLAG_NO_DEFAULT_IPV4 (1 << 4)
350#define BGP_FLAG_NO_CLIENT_TO_CLIENT (1 << 5)
351#define BGP_FLAG_ENFORCE_FIRST_AS (1 << 6)
352#define BGP_FLAG_COMPARE_ROUTER_ID (1 << 7)
353#define BGP_FLAG_ASPATH_IGNORE (1 << 8)
354#define BGP_FLAG_IMPORT_CHECK (1 << 9)
355#define BGP_FLAG_NO_FAST_EXT_FAILOVER (1 << 10)
848973c7 356#define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1 << 11)
538621f2 357#define BGP_FLAG_GRACEFUL_RESTART (1 << 12)
6811845b 358#define BGP_FLAG_ASPATH_CONFED (1 << 13)
2fdd455c 359#define BGP_FLAG_ASPATH_MULTIPATH_RELAX (1 << 14)
8bd9d948 360#define BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY (1 << 15)
907f92c8 361#define BGP_FLAG_DISABLE_NH_CONNECTED_CHK (1 << 16)
219178b6 362#define BGP_FLAG_MULTIPATH_RELAX_AS_SET (1 << 17)
078430f6 363#define BGP_FLAG_FORCE_STATIC_PROCESS (1 << 18)
5623e905 364#define BGP_FLAG_SHOW_HOSTNAME (1 << 19)
6a9a3cde 365#define BGP_FLAG_GR_PRESERVE_FWD (1 << 20)
7f323236 366#define BGP_FLAG_GRACEFUL_SHUTDOWN (1 << 21)
718e3744 367
d62a17ae 368 /* BGP Per AF flags */
d7c0a89a 369 uint16_t af_flags[AFI_MAX][SAFI_MAX];
f4882003 370#define BGP_CONFIG_DAMPENING (1 << 0)
2c29b18a 371/* l2vpn evpn flags - 1 << 0 is used for DAMPENNG */
f4882003
MK		 372#define BGP_L2VPN_EVPN_ADVERTISE_IPV4_UNICAST (1 << 1)
373#define BGP_L2VPN_EVPN_ADVERTISE_IPV6_UNICAST (1 << 2)
374#define BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV4 (1 << 3)
375#define BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV6 (1 << 4)
376/* import/export between address families */
377#define BGP_CONFIG_VRF_TO_MPLSVPN_EXPORT (1 << 5)
378#define BGP_CONFIG_MPLSVPN_TO_VRF_IMPORT (1 << 6)
379/* vrf-route leaking flags */
380#define BGP_CONFIG_VRF_TO_VRF_IMPORT (1 << 7)
381#define BGP_CONFIG_VRF_TO_VRF_EXPORT (1 << 8)
154faa50 382
210ec2a0
AS		 383 /* BGP per AF peer count */
384 uint32_t af_peer_count[AFI_MAX][SAFI_MAX];
385
d62a17ae 386 /* Route table for next-hop lookup cache. */
387 struct bgp_table *nexthop_cache_table[AFI_MAX];
6aeb9e78 388
d62a17ae 389 /* Route table for import-check */
390 struct bgp_table *import_check_table[AFI_MAX];
6aeb9e78 391
d62a17ae 392 struct bgp_table *connected_table[AFI_MAX];
6aeb9e78 393
d62a17ae 394 struct hash *address_hash;
6aeb9e78 395
db0e1937
MK		 396 /* DB for all local tunnel-ips - used mainly for martian checks
397 Currently it only has all VxLan tunnel IPs*/
398 struct hash *tip_hash;
399
d62a17ae 400 /* Static route configuration. */
401 struct bgp_table *route[AFI_MAX][SAFI_MAX];
718e3744 402
d62a17ae 403 /* Aggregate address configuration. */
404 struct bgp_table *aggregate[AFI_MAX][SAFI_MAX];
718e3744 405
d62a17ae 406 /* BGP routing information base. */
407 struct bgp_table *rib[AFI_MAX][SAFI_MAX];
718e3744 408
d62a17ae 409 /* BGP table route-map. */
410 struct bgp_rmap table_map[AFI_MAX][SAFI_MAX];
73ac8160 411
d62a17ae 412 /* BGP redistribute configuration. */
413 struct list *redist[AFI_MAX][ZEBRA_ROUTE_MAX];
718e3744 414
318cac96 415 /* Allocate MPLS labels */
d7c0a89a 416 uint8_t allocate_mpls_labels[AFI_MAX][SAFI_MAX];
318cac96 417
f3d32faa
PG		 418 /* Allocate hash entries to store policy routing information
419 * The hash are used to host pbr rules somewhere.
420 * Actually, pbr will only be used by flowspec
421 * those hash elements will have relationship together as
422 * illustrated in below diagram:
423 *
424 * pbr_action a <----- pbr_match i <--- pbr_match_entry 1..n
425 * <----- pbr_match j <--- pbr_match_entry 1..m
27e376d4 426 * <----- pbr_rule k
f3d32faa
PG		 427 *
428 * - here in BGP structure, the list of match and actions will
429 * stand for the list of ipset sets, and table_ids in the kernel
430 * - the arrow above between pbr_match and pbr_action indicate
431 * that a backpointer permits match to find the action
432 * - the arrow betwen match_entry and match is a hash list
433 * contained in match, that lists the whole set of entries
434 */
435 struct hash *pbr_match_hash;
27e376d4 436 struct hash *pbr_rule_hash;
f3d32faa
PG		 437 struct hash *pbr_action_hash;
438
d62a17ae 439 /* timer to re-evaluate neighbor default-originate route-maps */
440 struct thread *t_rmap_def_originate_eval;
0de4848d
DS		 441#define RMAP_DEFAULT_ORIGINATE_EVAL_TIMER 5
442
d62a17ae 443 /* BGP distance configuration. */
d7c0a89a
QY		 444 uint8_t distance_ebgp[AFI_MAX][SAFI_MAX];
445 uint8_t distance_ibgp[AFI_MAX][SAFI_MAX];
446 uint8_t distance_local[AFI_MAX][SAFI_MAX];
d62a17ae 447
448 /* BGP default local-preference. */
d7c0a89a 449 uint32_t default_local_pref;
d62a17ae 450
451 /* BGP default subgroup pkt queue max */
d7c0a89a 452 uint32_t default_subgroup_pkt_queue_max;
d62a17ae 453
454 /* BGP default timer. */
d7c0a89a
QY		 455 uint32_t default_holdtime;
456 uint32_t default_keepalive;
d62a17ae 457
458 /* BGP graceful restart */
d7c0a89a
QY		 459 uint32_t restart_time;
460 uint32_t stalepath_time;
d62a17ae 461
462 /* Maximum-paths configuration */
463 struct bgp_maxpaths_cfg {
d7c0a89a
QY		 464 uint16_t maxpaths_ebgp;
465 uint16_t maxpaths_ibgp;
466 uint16_t ibgp_flags;
5e242b0d 467#define BGP_FLAG_IBGP_MULTIPATH_SAME_CLUSTERLEN (1 << 0)
d62a17ae 468 } maxpaths[AFI_MAX][SAFI_MAX];
cb1faec9 469
555e09d4
QY		 470 _Atomic uint32_t wpkt_quanta; // max # packets to write per i/o cycle
471 _Atomic uint32_t rpkt_quanta; // max # packets to read per i/o cycle
472
37a333fe
QY		 473 /* Automatic coalesce adjust on/off */
474 bool heuristic_coalesce;
14b8641a
QY		 475 /* Actual coalesce time */
476 uint32_t coalesce_time;
adbac85e 477
f26845f9
QY		 478 /* Auto-shutdown new peers */
479 bool autoshutdown;
480
dcc68b5e 481 struct bgp_addpath_bgp_data tx_addpath;
65efcfce
LB		 482
483#if ENABLE_BGP_VNC
d62a17ae 484 struct rfapi_cfg *rfapi_cfg;
485 struct rfapi *rfapi;
65efcfce 486#endif
19df7279 487
d62a17ae 488 /* EVPN related information */
14c1a7bf 489
d62a17ae 490 /* EVI hash table */
491 struct hash *vnihash;
14c1a7bf 492
1a98c087
MK		 493 /* EVPN enable - advertise gateway macip routes */
494 int advertise_gw_macip;
495
d62a17ae 496 /* EVPN enable - advertise local VNIs and their MACs etc. */
497 int advertise_all_vni;
14c1a7bf 498
9dac9fc8
DA		 499 /* RFC 8212 - prevent route leaks. */
500 int ebgp_requires_policy;
501#define DEFAULT_EBGP_POLICY_DISABLED 0
502#define DEFAULT_EBGP_POLICY_ENABLED 1
503
85c8d83b
CS		 504 struct bgp_evpn_info *evpn_info;
505
bf1061d8
VB		 506 /* EVPN - use RFC 8365 to auto-derive RT */
507 int advertise_autort_rfc8365;
508
fd069644
DS		 509 /*
510 * Flooding mechanism for BUM packets for VxLAN-EVPN.
511 */
512 enum vxlan_flood_control vxlan_flood_ctrl;
513
d62a17ae 514 /* Hash table of Import RTs to EVIs */
515 struct hash *import_rt_hash;
14c1a7bf 516
10ebe1ab
MK		 517 /* Hash table of VRF import RTs to VRFs */
518 struct hash *vrf_import_rt_hash;
519
fe1dc5a3
MK		 520 /* L3-VNI corresponding to this vrf */
521 vni_t l3vni;
522
523 /* router-mac to be used in mac-ip routes for this vrf */
524 struct ethaddr rmac;
525
b67a60d2 526 /* originator ip - to be used as NH for type-5 routes */
527 struct in_addr originator_ip;
528
0483af6e 529 /* SVI associated with the L3-VNI corresponding to this vrf */
530 ifindex_t l3vni_svi_ifindex;
531
fe1dc5a3
MK		 532 /* vrf flags */
533 uint32_t vrf_flags;
676f83b9 534#define BGP_VRF_AUTO (1 << 0)
154faa50
MK		 535#define BGP_VRF_IMPORT_RT_CFGD (1 << 1)
536#define BGP_VRF_EXPORT_RT_CFGD (1 << 2)
537#define BGP_VRF_RD_CFGD (1 << 3)
23e386ac
MK		 538#define BGP_VRF_L3VNI_PREFIX_ROUTES_ONLY (1 << 4)
539
676f83b9 540
541 /* unique ID for auto derivation of RD for this vrf */
542 uint16_t vrf_rd_id;
543
92708db6 544 /* Automatically derived RD for this VRF */
545 struct prefix_rd vrf_prd_auto;
546
676f83b9 547 /* RD for this VRF */
548 struct prefix_rd vrf_prd;
c581d8b0
MK		 549
550 /* import rt list for the vrf instance */
551 struct list *vrf_import_rtl;
552
553 /* export rt list for the vrf instance */
554 struct list *vrf_export_rtl;
fe1dc5a3 555
6a8657d0
MK		 556 /* list of corresponding l2vnis (struct bgpevpn) */
557 struct list *l2vnis;
558
53c84f78
MK		 559 /* route map for advertise ipv4/ipv6 unicast (type-5 routes) */
560 struct bgp_rmap adv_cmd_rmap[AFI_MAX][SAFI_MAX];
561
e70e9f8e 562 struct vpn_policy vpn_policy[AFI_MAX];
ddb5b488 563
4762c213
PG		 564 struct bgp_pbr_config *bgp_pbr_cfg;
565
50f74cf1 566 /* local esi hash table */
567 struct hash *esihash;
568
36dc7588 569 /* Count of peers in established state */
570 uint32_t established_peers;
571
d62a17ae 572 QOBJ_FIELDS
718e3744 573};
19df7279 574DECLARE_QOBJ_TYPE(bgp)
718e3744 575
2a3d5731 576#define BGP_ROUTE_ADV_HOLD(bgp) (bgp->main_peers_update_hold)
d889623f 577
d62a17ae 578#define IS_BGP_INST_KNOWN_TO_ZEBRA(bgp) \
579 (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT \
580 || (bgp->inst_type == BGP_INSTANCE_TYPE_VRF \
581 && bgp->vrf_id != VRF_UNKNOWN))
ad4cbda1 582
718e3744 583/* BGP peer-group support. */
d62a17ae 584struct peer_group {
585 /* Name of the peer-group. */
586 char *name;
718e3744 587
d62a17ae 588 /* Pointer to BGP. */
589 struct bgp *bgp;
718e3744 590
d62a17ae 591 /* Peer-group client list. */
592 struct list *peer;
f14e6fdb 593
d62a17ae 594 /** Dynamic neighbor listening ranges */
595 struct list *listen_range[AFI_MAX];
596
597 /* Peer-group config */
598 struct peer *conf;
718e3744 599};
600
601/* BGP Notify message format. */
d62a17ae 602struct bgp_notify {
d7c0a89a
QY		 603 uint8_t code;
604 uint8_t subcode;
d62a17ae 605 char *data;
606 bgp_size_t length;
d7c0a89a 607 uint8_t *raw_data;
718e3744 608};
609
610/* Next hop self address. */
d62a17ae 611struct bgp_nexthop {
612 struct interface *ifp;
613 struct in_addr v4;
614 struct in6_addr v6_global;
615 struct in6_addr v6_local;
718e3744 616};
617
a82478b9
DS		 618/* BGP addpath values */
619#define BGP_ADDPATH_RX 1
620#define BGP_ADDPATH_TX 2
621#define BGP_ADDPATH_ID_LEN 4
622
adbac85e
DW		 623#define BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE 1
624
3f54c705 625/* Route map direction */
2a3d5731
DW		 626#define RMAP_IN 0
627#define RMAP_OUT 1
628#define RMAP_MAX 2
fee0f4c6 629
65efcfce
LB		 630#include "filter.h"
631
718e3744 632/* BGP filter structure. */
d62a17ae 633struct bgp_filter {
634 /* Distribute-list. */
635 struct {
636 char *name;
637 struct access_list *alist;
638 } dlist[FILTER_MAX];
639
640 /* Prefix-list. */
641 struct {
642 char *name;
643 struct prefix_list *plist;
644 } plist[FILTER_MAX];
645
646 /* Filter-list. */
647 struct {
648 char *name;
649 struct as_list *aslist;
650 } aslist[FILTER_MAX];
651
652 /* Route-map. */
653 struct {
654 char *name;
655 struct route_map *map;
656 } map[RMAP_MAX];
657
658 /* Unsuppress-map. */
659 struct {
660 char *name;
661 struct route_map *map;
662 } usmap;
718e3744 663};
664
6d85b15b
JBD		 665/* IBGP/EBGP identifier. We also have a CONFED peer, which is to say,
666 a peer who's AS is part of our Confederation. */
d62a17ae 667typedef enum {
faa16034
DS		 668 BGP_PEER_UNSPECIFIED,
669 BGP_PEER_IBGP,
d62a17ae 670 BGP_PEER_EBGP,
671 BGP_PEER_INTERNAL,
672 BGP_PEER_CONFED,
6d85b15b
JBD		 673} bgp_peer_sort_t;
674
d6661008
DS		 675/* BGP message header and packet size. */
676#define BGP_MARKER_SIZE 16
677#define BGP_HEADER_SIZE 19
678#define BGP_MAX_PACKET_SIZE 4096
0a91ff55 679#define BGP_MAX_PACKET_SIZE_OVERFLOW 1024
d6661008 680
3f9c7369
DS		 681/*
682 * Trigger delay for bgp_announce_route().
683 */
684#define BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS 100
685#define BGP_ANNOUNCE_ROUTE_DELAY_MS 500
686
d62a17ae 687struct peer_af {
688 /* back pointer to the peer */
689 struct peer *peer;
3f9c7369 690
d62a17ae 691 /* which subgroup the peer_af belongs to */
692 struct update_subgroup *subgroup;
3f9c7369 693
d62a17ae 694 /* for being part of an update subgroup's peer list */
695 LIST_ENTRY(peer_af) subgrp_train;
3f9c7369 696
d62a17ae 697 /* for being part of a packet's peer list */
698 LIST_ENTRY(peer_af) pkt_train;
3f9c7369 699
d62a17ae 700 struct bpacket *next_pkt_to_send;
3f9c7369 701
d62a17ae 702 /*
703 * Trigger timer for bgp_announce_route().
704 */
705 struct thread *t_announce_route;
3f9c7369 706
d62a17ae 707 afi_t afi;
708 safi_t safi;
709 int afid;
3f9c7369
DS		 710};
711
718e3744 712/* BGP neighbor structure. */
d62a17ae 713struct peer {
714 /* BGP structure. */
715 struct bgp *bgp;
716
717 /* reference count, primarily to allow bgp_process'ing of route_node's
718 * to be done after a struct peer is deleted.
719 *
720 * named 'lock' for hysterical reasons within Quagga.
721 */
722 int lock;
723
724 /* BGP peer group. */
725 struct peer_group *group;
726 uint64_t version[AFI_MAX][SAFI_MAX];
727
728 /* BGP peer_af structures, per configured AF on this peer */
729 struct peer_af *peer_af_array[BGP_AF_MAX];
730
731 /* Peer's remote AS number. */
732 int as_type;
733 as_t as;
734
735 /* Peer's local AS number. */
736 as_t local_as;
737
738 bgp_peer_sort_t sort;
739
740 /* Peer's Change local AS number. */
741 as_t change_local_as;
742
743 /* Remote router ID. */
744 struct in_addr remote_id;
745
746 /* Local router ID. */
747 struct in_addr local_id;
748
749 /* Packet receive and send buffer. */
424ab01d
QY		 750 pthread_mutex_t io_mtx; // guards ibuf, obuf
751 struct stream_fifo *ibuf; // packets waiting to be processed
752 struct stream_fifo *obuf; // packets waiting to be written
753
74ffbfe6
QY		 754 struct ringbuf *ibuf_work; // WiP buffer used by bgp_read() only
755 struct stream *obuf_work; // WiP buffer used to construct packets
424ab01d
QY		 756
757 struct stream *curr; // the current packet being parsed
d62a17ae 758
759 /* We use a separate stream to encode MP_REACH_NLRI for efficient
424ab01d 760 * NLRI packing. peer->obuf_work stores all the other attributes. The
d62a17ae 761 * actual packet is then constructed by concatenating the two.
762 */
763 struct stream *scratch;
764
765 /* the doppelganger peer structure, due to dual TCP conn setup */
766 struct peer *doppelganger;
767
768 /* Status of the peer. */
769 int status;
770 int ostatus;
771
772 /* FSM events, stored for debug purposes.
773 * Note: uchar used for reduced memory usage.
774 */
775 unsigned char cur_event;
776 unsigned char last_event;
777 unsigned char last_major_event;
778
779 /* Peer index, used for dumping TABLE_DUMP_V2 format */
780 uint16_t table_dump_index;
781
782 /* Peer information */
783 int fd; /* File descriptor */
784 int ttl; /* TTL of TCP connection to the peer. */
785 int rtt; /* Estimated round-trip-time from TCP_INFO */
786 int gtsm_hops; /* minimum hopcount to peer */
787 char *desc; /* Description of the peer. */
788 unsigned short port; /* Destination port for peer */
789 char *host; /* Printable address of the peer. */
790 union sockunion su; /* Sockunion address of the peer. */
a80beece 791#define BGP_PEER_SU_UNSPEC(peer) (peer->su.sa.sa_family == AF_UNSPEC)
d62a17ae 792 time_t uptime; /* Last Up/Down time */
793 time_t readtime; /* Last read time */
794 time_t resettime; /* Last reset time */
795
d62a17ae 796 char *conf_if; /* neighbor interface config name. */
797 struct interface *ifp; /* corresponding interface */
798 char *ifname; /* bind interface name. */
799 char *update_if;
800 union sockunion *update_source;
801
802 union sockunion *su_local; /* Sockunion of local address. */
803 union sockunion *su_remote; /* Sockunion of remote address. */
804 int shared_network; /* Is this peer shared same network. */
805 struct bgp_nexthop nexthop; /* Nexthop */
806
807 /* Peer address family configuration. */
d7c0a89a
QY		 808 uint8_t afc[AFI_MAX][SAFI_MAX];
809 uint8_t afc_nego[AFI_MAX][SAFI_MAX];
810 uint8_t afc_adv[AFI_MAX][SAFI_MAX];
811 uint8_t afc_recv[AFI_MAX][SAFI_MAX];
d62a17ae 812
813 /* Capability flags (reset in bgp_stop) */
d7c0a89a 814 uint32_t cap;
718e3744 815#define PEER_CAP_REFRESH_ADV (1 << 0) /* refresh advertised */
816#define PEER_CAP_REFRESH_OLD_RCV (1 << 1) /* refresh old received */
817#define PEER_CAP_REFRESH_NEW_RCV (1 << 2) /* refresh rfc received */
818#define PEER_CAP_DYNAMIC_ADV (1 << 3) /* dynamic advertised */
819#define PEER_CAP_DYNAMIC_RCV (1 << 4) /* dynamic received */
538621f2 820#define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */
821#define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */
0b2aa3a0
PJ		 822#define PEER_CAP_AS4_ADV (1 << 7) /* as4 advertised */
823#define PEER_CAP_AS4_RCV (1 << 8) /* as4 received */
fe7d2a48
DS		 824#define PEER_CAP_RESTART_BIT_ADV (1 << 9) /* sent restart state */
825#define PEER_CAP_RESTART_BIT_RCV (1 << 10) /* peer restart state */
a82478b9
DS		 826#define PEER_CAP_ADDPATH_ADV (1 << 11) /* addpath advertised */
827#define PEER_CAP_ADDPATH_RCV (1 << 12) /* addpath received */
c744aa9f
DS		 828#define PEER_CAP_ENHE_ADV (1 << 13) /* Extended nexthop advertised */
829#define PEER_CAP_ENHE_RCV (1 << 14) /* Extended nexthop received */
04b6bdc0
DW		 830#define PEER_CAP_HOSTNAME_ADV (1 << 15) /* hostname advertised */
831#define PEER_CAP_HOSTNAME_RCV (1 << 16) /* hostname received */
718e3744 832
d62a17ae 833 /* Capability flags (reset in bgp_stop) */
d7c0a89a 834 uint32_t af_cap[AFI_MAX][SAFI_MAX];
718e3744 835#define PEER_CAP_ORF_PREFIX_SM_ADV (1 << 0) /* send-mode advertised */
836#define PEER_CAP_ORF_PREFIX_RM_ADV (1 << 1) /* receive-mode advertised */
837#define PEER_CAP_ORF_PREFIX_SM_RCV (1 << 2) /* send-mode received */
838#define PEER_CAP_ORF_PREFIX_RM_RCV (1 << 3) /* receive-mode received */
839#define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1 << 4) /* send-mode received */
840#define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1 << 5) /* receive-mode received */
93406d87 841#define PEER_CAP_RESTART_AF_RCV (1 << 6) /* graceful restart afi/safi received */
842#define PEER_CAP_RESTART_AF_PRESERVE_RCV (1 << 7) /* graceful restart afi/safi F-bit received */
a82478b9
DS		 843#define PEER_CAP_ADDPATH_AF_TX_ADV (1 << 8) /* addpath tx advertised */
844#define PEER_CAP_ADDPATH_AF_TX_RCV (1 << 9) /* addpath tx received */
845#define PEER_CAP_ADDPATH_AF_RX_ADV (1 << 10) /* addpath rx advertised */
846#define PEER_CAP_ADDPATH_AF_RX_RCV (1 << 11) /* addpath rx received */
8a92a8a0
DS		 847#define PEER_CAP_ENHE_AF_ADV (1 << 12) /* Extended nexthopi afi/safi advertised */
848#define PEER_CAP_ENHE_AF_RCV (1 << 13) /* Extended nexthop afi/safi received */
849#define PEER_CAP_ENHE_AF_NEGO (1 << 14) /* Extended nexthop afi/safi negotiated */
718e3744 850
d62a17ae 851 /* Global configuration flags. */
9fb964de
PM		 852 /*
853 * Parallel array to flags that indicates whether each flag originates
854 * from a peer-group or if it is config that is specific to this
855 * individual peer. If a flag is set independent of the peer-group, the
856 * same bit should be set here. If this peer is a peer-group, this
857 * memory region should be all zeros.
858 *
859 * The assumption is that the default state for all flags is unset,
860 * so if a flag is unset, the corresponding override flag is unset too.
861 * However if a flag is set, the corresponding override flag is set.
862 */
863 uint32_t flags_override;
864 /*
865 * Parallel array to flags that indicates whether the default behavior
866 * of *flags_override* should be inverted. If a flag is unset and the
867 * corresponding invert flag is set, the corresponding override flag
868 * would be set. However if a flag is set and the corresponding invert
869 * flag is unset, the corresponding override flag would be unset.
870 *
871 * This can be used for attributes like *send-community*, which are
872 * implicitely enabled and have to be disabled explicitely, compared to
873 * 'normal' attributes like *next-hop-self* which are implicitely set.
874 *
875 * All operations dealing with flags should apply the following boolean
876 * logic to keep the internal flag system in a sane state:
877 *
878 * value=0 invert=0 Inherit flag if member, otherwise unset flag
879 * value=0 invert=1 Unset flag unconditionally
880 * value=1 invert=0 Set flag unconditionally
881 * value=1 invert=1 Inherit flag if member, otherwise set flag
882 *
883 * Contrary to the implementation of *flags_override*, the flag
884 * inversion state can be set either on the peer OR the peer *and* the
885 * peer-group. This was done on purpose, as the inversion state of a
886 * flag can be determined on either the peer or the peer-group.
887 *
888 * Example: Enabling the cisco configuration mode inverts all flags
889 * related to *send-community* unconditionally for both peer-groups and
890 * peers.
891 *
892 * This behavior is different for interface peers though, which enable
893 * the *extended-nexthop* flag by default, which regular peers do not.
894 * As the peer-group can contain both regular and interface peers, the
895 * flag inversion state must be set on the peer only.
896 *
897 * When a peer inherits the configuration from a peer-group and the
898 * inversion state of the flag differs between peer and peer-group, the
899 * newly set value must equal to the inverted state of the peer-group.
900 */
901 uint32_t flags_invert;
902 /*
903 * Effective array for storing the peer/peer-group flags. In case of a
904 * peer-group, the peer-specific overrides (see flags_override and
905 * flags_invert) must be respected.
906 */
d7c0a89a 907 uint32_t flags;
718e3744 908#define PEER_FLAG_PASSIVE (1 << 0) /* passive mode */
909#define PEER_FLAG_SHUTDOWN (1 << 1) /* shutdown */
910#define PEER_FLAG_DONT_CAPABILITY (1 << 2) /* dont-capability */
911#define PEER_FLAG_OVERRIDE_CAPABILITY (1 << 3) /* override-capability */
912#define PEER_FLAG_STRICT_CAP_MATCH (1 << 4) /* strict-match */
c9502438 913#define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 5) /* dynamic capability */
6ffd2079 914#define PEER_FLAG_DISABLE_CONNECTED_CHECK (1 << 6) /* disable-connected-check */
c9502438 915#define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 7) /* local-as no-prepend */
9d3f9705 916#define PEER_FLAG_LOCAL_AS_REPLACE_AS (1 << 8) /* local-as no-prepend replace-as */
47cbc09b
PM		 917#define PEER_FLAG_DELETE (1 << 9) /* mark the peer for deleting */
918#define PEER_FLAG_CONFIG_NODE (1 << 10) /* the node to update configs on */
7f342629
DS		 919#define PEER_FLAG_LONESOUL (1 << 11)
920#define PEER_FLAG_DYNAMIC_NEIGHBOR (1 << 12) /* dynamic neighbor */
921#define PEER_FLAG_CAPABILITY_ENHE (1 << 13) /* Extended next-hop (rfc 5549)*/
88177fe3 922#define PEER_FLAG_IFPEER_V6ONLY (1 << 14) /* if-based peer is v6 only */
47cbc09b
PM		 923#define PEER_FLAG_IS_RFAPI_HD (1 << 15) /* attached to rfapi HD */
924#define PEER_FLAG_ENFORCE_FIRST_AS (1 << 16) /* enforce-first-as */
b90a8e13
PM		 925#define PEER_FLAG_ROUTEADV (1 << 17) /* route advertise */
926#define PEER_FLAG_TIMER (1 << 18) /* keepalive & holdtime */
927#define PEER_FLAG_TIMER_CONNECT (1 << 19) /* connect timer */
a14810f4
PM		 928#define PEER_FLAG_PASSWORD (1 << 20) /* password */
929#define PEER_FLAG_LOCAL_AS (1 << 21) /* local-as */
930#define PEER_FLAG_UPDATE_SOURCE (1 << 22) /* update-source */
02a82b47 931
d62a17ae 932 /* outgoing message sent in CEASE_ADMIN_SHUTDOWN notify */
933 char *tx_shutdown_message;
718e3744 934
d62a17ae 935 /* NSF mode (graceful restart) */
d7c0a89a 936 uint8_t nsf[AFI_MAX][SAFI_MAX];
93406d87 937
04e1c5bb
QY		 938 /* Peer Per AF flags */
939 /*
9fb964de
PM		 940 * Please consult the comments for *flags_override*, *flags_invert* and
941 * *flags* to understand what these three arrays do. The address-family
942 * specific attributes are being treated the exact same way as global
943 * peer attributes.
04e1c5bb
QY		 944 */
945 uint32_t af_flags_override[AFI_MAX][SAFI_MAX];
27c05d4d 946 uint32_t af_flags_invert[AFI_MAX][SAFI_MAX];
d7c0a89a 947 uint32_t af_flags[AFI_MAX][SAFI_MAX];
718e3744 948#define PEER_FLAG_SEND_COMMUNITY (1 << 0) /* send-community */
949#define PEER_FLAG_SEND_EXT_COMMUNITY (1 << 1) /* send-community ext. */
950#define PEER_FLAG_NEXTHOP_SELF (1 << 2) /* next-hop-self */
951#define PEER_FLAG_REFLECTOR_CLIENT (1 << 3) /* reflector-client */
952#define PEER_FLAG_RSERVER_CLIENT (1 << 4) /* route-server-client */
953#define PEER_FLAG_SOFT_RECONFIG (1 << 5) /* soft-reconfiguration */
954#define PEER_FLAG_AS_PATH_UNCHANGED (1 << 6) /* transparent-as */
955#define PEER_FLAG_NEXTHOP_UNCHANGED (1 << 7) /* transparent-next-hop */
956#define PEER_FLAG_MED_UNCHANGED (1 << 8) /* transparent-next-hop */
957#define PEER_FLAG_DEFAULT_ORIGINATE (1 << 9) /* default-originate */
958#define PEER_FLAG_REMOVE_PRIVATE_AS (1 << 10) /* remove-private-as */
959#define PEER_FLAG_ALLOWAS_IN (1 << 11) /* set allowas-in */
960#define PEER_FLAG_ORF_PREFIX_SM (1 << 12) /* orf capability send-mode */
961#define PEER_FLAG_ORF_PREFIX_RM (1 << 13) /* orf capability receive-mode */
962#define PEER_FLAG_MAX_PREFIX (1 << 14) /* maximum prefix */
963#define PEER_FLAG_MAX_PREFIX_WARNING (1 << 15) /* maximum prefix warning-only */
0df7c91f 964#define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1 << 16) /* leave link-local nexthop unchanged */
a538debe 965#define PEER_FLAG_FORCE_NEXTHOP_SELF (1 << 17) /* next-hop-self force */
5000f21c
DS		 966#define PEER_FLAG_REMOVE_PRIVATE_AS_ALL (1 << 18) /* remove-private-as all */
967#define PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE (1 << 19) /* remove-private-as replace-as */
c7122e14 968#define PEER_FLAG_AS_OVERRIDE (1 << 20) /* as-override */
88b8ed8d 969#define PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE (1 << 21) /* remove-private-as all replace-as */
d93f7ffc 970#define PEER_FLAG_WEIGHT (1 << 24) /* weight */
aac9ef6c 971#define PEER_FLAG_ALLOWAS_IN_ORIGIN (1 << 25) /* allowas-in origin */
57d187bc 972#define PEER_FLAG_SEND_LARGE_COMMUNITY (1 << 26) /* Send large Communities */
0df7c91f 973
dcc68b5e
MS		 974 enum bgp_addpath_strat addpath_type[AFI_MAX][SAFI_MAX];
975
d62a17ae 976 /* MD5 password */
977 char *password;
718e3744 978
d62a17ae 979 /* default-originate route-map. */
980 struct {
981 char *name;
982 struct route_map *map;
983 } default_rmap[AFI_MAX][SAFI_MAX];
718e3744 984
d62a17ae 985 /* Peer status flags. */
d7c0a89a 986 uint16_t sflags;
718e3744 987#define PEER_STATUS_ACCEPT_PEER (1 << 0) /* accept peer */
988#define PEER_STATUS_PREFIX_OVERFLOW (1 << 1) /* prefix-overflow */
989#define PEER_STATUS_CAPABILITY_OPEN (1 << 2) /* capability open send */
990#define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */
991#define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */
93406d87 992#define PEER_STATUS_NSF_MODE (1 << 5) /* NSF aware peer */
993#define PEER_STATUS_NSF_WAIT (1 << 6) /* wait comeback peer */
718e3744 994
d62a17ae 995 /* Peer status af flags (reset in bgp_stop) */
d7c0a89a 996 uint16_t af_sflags[AFI_MAX][SAFI_MAX];
718e3744 997#define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */
998#define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */
840fced9
DS		 999#define PEER_STATUS_PREFIX_THRESHOLD (1 << 2) /* exceed prefix-threshold */
1000#define PEER_STATUS_PREFIX_LIMIT (1 << 3) /* exceed prefix-limit */
1001#define PEER_STATUS_EOR_SEND (1 << 4) /* end-of-rib send to peer */
1002#define PEER_STATUS_EOR_RECEIVED (1 << 5) /* end-of-rib received from peer */
e0701b79 1003
b90a8e13 1004 /* Configured timer values. */
1588f6f4
QY		 1005 _Atomic uint32_t holdtime;
1006 _Atomic uint32_t keepalive;
1007 _Atomic uint32_t connect;
1008 _Atomic uint32_t routeadv;
d62a17ae 1009
1010 /* Timer values. */
1588f6f4
QY		 1011 _Atomic uint32_t v_start;
1012 _Atomic uint32_t v_connect;
1013 _Atomic uint32_t v_holdtime;
1014 _Atomic uint32_t v_keepalive;
1015 _Atomic uint32_t v_routeadv;
1016 _Atomic uint32_t v_pmax_restart;
1017 _Atomic uint32_t v_gr_restart;
d62a17ae 1018
1019 /* Threads. */
1020 struct thread *t_read;
424ab01d 1021 struct thread *t_write;
d62a17ae 1022 struct thread *t_start;
387f984e
QY		 1023 struct thread *t_connect_check_r;
1024 struct thread *t_connect_check_w;
d62a17ae 1025 struct thread *t_connect;
1026 struct thread *t_holdtime;
d62a17ae 1027 struct thread *t_routeadv;
1028 struct thread *t_pmax_restart;
1029 struct thread *t_gr_restart;
1030 struct thread *t_gr_stale;
56257a44 1031 struct thread *t_generate_updgrp_packets;
424ab01d 1032 struct thread *t_process_packet;
d62a17ae 1033
49507a6f 1034 /* Thread flags. */
0545c373 1035 _Atomic uint32_t thread_flags;
b750b0ba
QY		 1036#define PEER_THREAD_WRITES_ON (1 << 0)
1037#define PEER_THREAD_READS_ON (1 << 1)
1038#define PEER_THREAD_KEEPALIVES_ON (1 << 2)
d62a17ae 1039 /* workqueues */
1040 struct work_queue *clear_node_queue;
1041
a4d82a8a
PZ		 1042#define PEER_TOTAL_RX(peer) \
1043 atomic_load_explicit(&peer->open_in, memory_order_relaxed) \
1044 + atomic_load_explicit(&peer->update_in, memory_order_relaxed) \
1045 + atomic_load_explicit(&peer->notify_in, memory_order_relaxed) \
1046 + atomic_load_explicit(&peer->refresh_in, \
1047 memory_order_relaxed) \
1048 + atomic_load_explicit(&peer->keepalive_in, \
1049 memory_order_relaxed) \
1050 + atomic_load_explicit(&peer->dynamic_cap_in, \
1051 memory_order_relaxed)
1052
1053#define PEER_TOTAL_TX(peer) \
1054 atomic_load_explicit(&peer->open_out, memory_order_relaxed) \
1055 + atomic_load_explicit(&peer->update_out, \
1056 memory_order_relaxed) \
1057 + atomic_load_explicit(&peer->notify_out, \
1058 memory_order_relaxed) \
1059 + atomic_load_explicit(&peer->refresh_out, \
1060 memory_order_relaxed) \
1061 + atomic_load_explicit(&peer->keepalive_out, \
1062 memory_order_relaxed) \
1063 + atomic_load_explicit(&peer->dynamic_cap_out, \
1064 memory_order_relaxed)
0112e9e0 1065
d62a17ae 1066 /* Statistics field */
996c9314
LB		 1067 _Atomic uint32_t open_in; /* Open message input count */
1068 _Atomic uint32_t open_out; /* Open message output count */
1588f6f4
QY		 1069 _Atomic uint32_t update_in; /* Update message input count */
1070 _Atomic uint32_t update_out; /* Update message ouput count */
1071 _Atomic time_t update_time; /* Update message received time. */
1072 _Atomic uint32_t keepalive_in; /* Keepalive input count */
1073 _Atomic uint32_t keepalive_out; /* Keepalive output count */
1074 _Atomic uint32_t notify_in; /* Notify input count */
1075 _Atomic uint32_t notify_out; /* Notify output count */
1076 _Atomic uint32_t refresh_in; /* Route Refresh input count */
1077 _Atomic uint32_t refresh_out; /* Route Refresh output count */
1078 _Atomic uint32_t dynamic_cap_in; /* Dynamic Capability input count. */
a4d82a8a 1079 _Atomic uint32_t dynamic_cap_out; /* Dynamic Capability output count. */
d62a17ae 1080
1081 /* BGP state count */
d7c0a89a
QY		 1082 uint32_t established; /* Established */
1083 uint32_t dropped; /* Dropped */
d62a17ae 1084
1085 /* Update delay related fields */
d7c0a89a 1086 uint8_t update_delay_over; /* When this is set, BGP is no more waiting
d62a17ae 1087 for EOR */
1088
1089 /* Syncronization list and time. */
1090 struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX];
1091 time_t synctime;
1588f6f4
QY		 1092 /* timestamp when the last UPDATE msg was written */
1093 _Atomic time_t last_write;
1094 /* timestamp when the last msg was written */
1095 _Atomic time_t last_update;
d62a17ae 1096
1097 /* Send prefix count. */
1098 unsigned long scount[AFI_MAX][SAFI_MAX];
1099
d62a17ae 1100 /* Notify data. */
1101 struct bgp_notify notify;
1102
d62a17ae 1103 /* Filter structure. */
1104 struct bgp_filter filter[AFI_MAX][SAFI_MAX];
1105
70ee29b4
PM		 1106 /*
1107 * Parallel array to filter that indicates whether each filter
1108 * originates from a peer-group or if it is config that is specific to
1109 * this individual peer. If a filter is set independent of the
1110 * peer-group the appropriate bit should be set here. If this peer is a
1111 * peer-group, this memory region should be all zeros. The assumption
1112 * is that the default state for all flags is unset. Due to filters
1113 * having a direction (e.g. in/out/...), this array has a third
1114 * dimension for storing the overrides independently per direction.
1115 *
1116 * Notes:
1117 * - if a filter for an individual peer is unset, the corresponding
1118 * override flag is unset and the peer is considered to be back in
1119 * sync with the peer-group.
1120 * - This does *not* contain the filter values, rather it contains
1121 * whether the filter in filter (struct bgp_filter) is peer-specific.
1122 */
1123 uint8_t filter_override[AFI_MAX][SAFI_MAX][(FILTER_MAX > RMAP_MAX)
1124 ? FILTER_MAX
1125 : RMAP_MAX];
1126#define PEER_FT_DISTRIBUTE_LIST (1 << 0) /* distribute-list */
1127#define PEER_FT_FILTER_LIST (1 << 1) /* filter-list */
1128#define PEER_FT_PREFIX_LIST (1 << 2) /* prefix-list */
1129#define PEER_FT_ROUTE_MAP (1 << 3) /* route-map */
1130#define PEER_FT_UNSUPPRESS_MAP (1 << 4) /* unsuppress-map */
1131
d62a17ae 1132 /* ORF Prefix-list */
1133 struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX];
1134
1135 /* Text description of last attribute rcvd */
1136 char rcvd_attr_str[BUFSIZ];
1137
1138 /* Track if we printed the attribute in debugs */
1139 int rcvd_attr_printed;
1140
1141 /* Prefix count. */
1142 unsigned long pcount[AFI_MAX][SAFI_MAX];
1143
1144 /* Max prefix count. */
1145 unsigned long pmax[AFI_MAX][SAFI_MAX];
d7c0a89a
QY		 1146 uint8_t pmax_threshold[AFI_MAX][SAFI_MAX];
1147 uint16_t pmax_restart[AFI_MAX][SAFI_MAX];
e0701b79 1148#define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75
718e3744 1149
d62a17ae 1150 /* allowas-in. */
1151 char allowas_in[AFI_MAX][SAFI_MAX];
ac41b2a2 1152
d62a17ae 1153 /* weight */
1154 unsigned long weight[AFI_MAX][SAFI_MAX];
d93f7ffc 1155
d62a17ae 1156 /* peer reset cause */
1157 char last_reset;
e0701b79 1158#define PEER_DOWN_RID_CHANGE 1 /* bgp router-id command */
1159#define PEER_DOWN_REMOTE_AS_CHANGE 2 /* neighbor remote-as command */
1160#define PEER_DOWN_LOCAL_AS_CHANGE 3 /* neighbor local-as command */
1161#define PEER_DOWN_CLID_CHANGE 4 /* bgp cluster-id command */
1162#define PEER_DOWN_CONFED_ID_CHANGE 5 /* bgp confederation identifier command */
1163#define PEER_DOWN_CONFED_PEER_CHANGE 6 /* bgp confederation peer command */
1164#define PEER_DOWN_RR_CLIENT_CHANGE 7 /* neighbor route-reflector-client command */
1165#define PEER_DOWN_RS_CLIENT_CHANGE 8 /* neighbor route-server-client command */
1166#define PEER_DOWN_UPDATE_SOURCE_CHANGE 9 /* neighbor update-source command */
1167#define PEER_DOWN_AF_ACTIVATE 10 /* neighbor activate command */
1168#define PEER_DOWN_USER_SHUTDOWN 11 /* neighbor shutdown command */
1169#define PEER_DOWN_USER_RESET 12 /* clear ip bgp command */
1170#define PEER_DOWN_NOTIFY_RECEIVED 13 /* notification received */
1171#define PEER_DOWN_NOTIFY_SEND 14 /* notification send */
1172#define PEER_DOWN_CLOSE_SESSION 15 /* tcp session close */
1173#define PEER_DOWN_NEIGHBOR_DELETE 16 /* neghbor delete */
1174#define PEER_DOWN_RMAP_BIND 17 /* neghbor peer-group command */
1175#define PEER_DOWN_RMAP_UNBIND 18 /* no neighbor peer-group command */
1176#define PEER_DOWN_CAPABILITY_CHANGE 19 /* neighbor capability command */
1177#define PEER_DOWN_PASSIVE_CHANGE 20 /* neighbor passive command */
1178#define PEER_DOWN_MULTIHOP_CHANGE 21 /* neighbor multihop command */
93406d87 1179#define PEER_DOWN_NSF_CLOSE_SESSION 22 /* NSF tcp session close */
8ffedcea 1180#define PEER_DOWN_V6ONLY_CHANGE 23 /* if-based peering v6only toggled */
7bbc6864 1181#define PEER_DOWN_BFD_DOWN 24 /* BFD down */
e60480bd
DD		 1182#define PEER_DOWN_IF_DOWN 25 /* Interface down */
1183#define PEER_DOWN_NBR_ADDR_DEL 26 /* Peer address lost */
d62a17ae 1184 unsigned long last_reset_cause_size;
d7c0a89a 1185 uint8_t last_reset_cause[BGP_MAX_PACKET_SIZE];
e0701b79 1186
d62a17ae 1187 /* The kind of route-map Flags.*/
d7c0a89a 1188 uint8_t rmap_type;
ac41b2a2 1189#define PEER_RMAP_TYPE_IN (1 << 0) /* neighbor route-map in */
1190#define PEER_RMAP_TYPE_OUT (1 << 1) /* neighbor route-map out */
1191#define PEER_RMAP_TYPE_NETWORK (1 << 2) /* network route-map */
1192#define PEER_RMAP_TYPE_REDISTRIBUTE (1 << 3) /* redistribute route-map */
1193#define PEER_RMAP_TYPE_DEFAULT (1 << 4) /* default-originate route-map */
1194#define PEER_RMAP_TYPE_NOSET (1 << 5) /* not allow to set commands */
fee0f4c6 1195#define PEER_RMAP_TYPE_IMPORT (1 << 6) /* neighbor route-map import */
1196#define PEER_RMAP_TYPE_EXPORT (1 << 7) /* neighbor route-map export */
6410e93a 1197
d62a17ae 1198 /* peer specific BFD information */
1199 struct bfd_info *bfd_info;
04b6bdc0 1200
d62a17ae 1201 /* hostname and domainname advertised by host */
1202 char *hostname;
1203 char *domainname;
19df7279 1204
d62a17ae 1205 QOBJ_FIELDS
718e3744 1206};
19df7279 1207DECLARE_QOBJ_TYPE(peer)
718e3744 1208
598ce6bd 1209/* Inherit peer attribute from peer-group. */
e7103a96
PM		 1210#define PEER_ATTR_INHERIT(peer, group, attr) \
1211 ((peer)->attr = (group)->conf->attr)
1212#define PEER_STR_ATTR_INHERIT(peer, group, attr, mt) \
598ce6bd
PM		 1213 do { \
1214 if ((peer)->attr) \
1215 XFREE(mt, (peer)->attr); \
e7103a96
PM		 1216 if ((group)->conf->attr) \
1217 (peer)->attr = XSTRDUP(mt, (group)->conf->attr); \
598ce6bd
PM		 1218 else \
1219 (peer)->attr = NULL; \
1220 } while (0)
a14810f4
PM		 1221#define PEER_SU_ATTR_INHERIT(peer, group, attr) \
1222 do { \
1223 if ((peer)->attr) \
1224 sockunion_free((peer)->attr); \
1225 if ((group)->conf->attr) \
1226 (peer)->attr = sockunion_dup((group)->conf->attr); \
1227 else \
1228 (peer)->attr = NULL; \
1229 } while (0)
598ce6bd 1230
ad4cbda1 1231/* Check if suppress start/restart of sessions to peer. */
d62a17ae 1232#define BGP_PEER_START_SUPPRESSED(P) \
1233 (CHECK_FLAG((P)->flags, PEER_FLAG_SHUTDOWN) \
1234 || CHECK_FLAG((P)->sflags, PEER_STATUS_PREFIX_OVERFLOW))
ad4cbda1 1235
0df7c91f
PJ		 1236#define PEER_PASSWORD_MINLEN (1)
1237#define PEER_PASSWORD_MAXLEN (80)
1238
718e3744 1239/* This structure's member directly points incoming packet data
1240 stream. */
d62a17ae 1241struct bgp_nlri {
1242 /* AFI. */
a46a2e9b 1243 uint16_t afi; /* iana_afi_t */
718e3744 1244
d62a17ae 1245 /* SAFI. */
a46a2e9b 1246 uint8_t safi; /* iana_safi_t */
718e3744 1247
d62a17ae 1248 /* Pointer to NLRI byte stream. */
d7c0a89a 1249 uint8_t *nlri;
718e3744 1250
d62a17ae 1251 /* Length of whole NLRI. */
1252 bgp_size_t length;
718e3744 1253};
1254
1255/* BGP versions. */
1256#define BGP_VERSION_4 4
718e3744 1257
1258/* Default BGP port number. */
1259#define BGP_PORT_DEFAULT 179
1260
718e3744 1261/* BGP minimum message size. */
1262#define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10)
1263#define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4)
1264#define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2)
1265#define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0)
1266#define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4)
1267#define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3)
1268
1269/* BGP message types. */
1270#define BGP_MSG_OPEN 1
1271#define BGP_MSG_UPDATE 2
1272#define BGP_MSG_NOTIFY 3
1273#define BGP_MSG_KEEPALIVE 4
1274#define BGP_MSG_ROUTE_REFRESH_NEW 5
1275#define BGP_MSG_CAPABILITY 6
1276#define BGP_MSG_ROUTE_REFRESH_OLD 128
1277
1278/* BGP open optional parameter. */
1279#define BGP_OPEN_OPT_AUTH 1
1280#define BGP_OPEN_OPT_CAP 2
1281
1282/* BGP4 attribute type codes. */
1283#define BGP_ATTR_ORIGIN 1
1284#define BGP_ATTR_AS_PATH 2
1285#define BGP_ATTR_NEXT_HOP 3
1286#define BGP_ATTR_MULTI_EXIT_DISC 4
1287#define BGP_ATTR_LOCAL_PREF 5
1288#define BGP_ATTR_ATOMIC_AGGREGATE 6
1289#define BGP_ATTR_AGGREGATOR 7
1290#define BGP_ATTR_COMMUNITIES 8
1291#define BGP_ATTR_ORIGINATOR_ID 9
1292#define BGP_ATTR_CLUSTER_LIST 10
1293#define BGP_ATTR_DPA 11
1294#define BGP_ATTR_ADVERTISER 12
1295#define BGP_ATTR_RCID_PATH 13
1296#define BGP_ATTR_MP_REACH_NLRI 14
1297#define BGP_ATTR_MP_UNREACH_NLRI 15
1298#define BGP_ATTR_EXT_COMMUNITIES 16
0b2aa3a0
PJ		 1299#define BGP_ATTR_AS4_PATH 17
1300#define BGP_ATTR_AS4_AGGREGATOR 18
41367172 1301#define BGP_ATTR_AS_PATHLIMIT 21
a21bd7a3 1302#define BGP_ATTR_PMSI_TUNNEL 22
f4c89855 1303#define BGP_ATTR_ENCAP 23
57d187bc 1304#define BGP_ATTR_LARGE_COMMUNITIES 32
c5a543b4 1305#define BGP_ATTR_PREFIX_SID 40
943d595a 1306#if ENABLE_BGP_VNC_ATTR
65efcfce
LB		 1307#define BGP_ATTR_VNC 255
1308#endif
718e3744 1309
1310/* BGP update origin. */
1311#define BGP_ORIGIN_IGP 0
1312#define BGP_ORIGIN_EGP 1
1313#define BGP_ORIGIN_INCOMPLETE 2
1314
1315/* BGP notify message codes. */
1316#define BGP_NOTIFY_HEADER_ERR 1
1317#define BGP_NOTIFY_OPEN_ERR 2
1318#define BGP_NOTIFY_UPDATE_ERR 3
1319#define BGP_NOTIFY_HOLD_ERR 4
1320#define BGP_NOTIFY_FSM_ERR 5
1321#define BGP_NOTIFY_CEASE 6
1322#define BGP_NOTIFY_CAPABILITY_ERR 7
718e3744 1323
4b4e07d2
DT		 1324#define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0
1325
718e3744 1326/* BGP_NOTIFY_HEADER_ERR sub codes. */
1327#define BGP_NOTIFY_HEADER_NOT_SYNC 1
1328#define BGP_NOTIFY_HEADER_BAD_MESLEN 2
1329#define BGP_NOTIFY_HEADER_BAD_MESTYPE 3
718e3744 1330
1331/* BGP_NOTIFY_OPEN_ERR sub codes. */
14051b36 1332#define BGP_NOTIFY_OPEN_MALFORMED_ATTR 0
718e3744 1333#define BGP_NOTIFY_OPEN_UNSUP_VERSION 1
1334#define BGP_NOTIFY_OPEN_BAD_PEER_AS 2
1335#define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3
1336#define BGP_NOTIFY_OPEN_UNSUP_PARAM 4
1337#define BGP_NOTIFY_OPEN_AUTH_FAILURE 5
1338#define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6
1339#define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7
718e3744 1340
1341/* BGP_NOTIFY_UPDATE_ERR sub codes. */
1342#define BGP_NOTIFY_UPDATE_MAL_ATTR 1
1343#define BGP_NOTIFY_UPDATE_UNREC_ATTR 2
1344#define BGP_NOTIFY_UPDATE_MISS_ATTR 3
1345#define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4
1346#define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5
1347#define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6
1348#define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7
1349#define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8
1350#define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9
1351#define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10
1352#define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11
718e3744 1353
4b4e07d2 1354/* BGP_NOTIFY_CEASE sub codes (RFC 4486). */
718e3744 1355#define BGP_NOTIFY_CEASE_MAX_PREFIX 1
1356#define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2
1357#define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3
1358#define BGP_NOTIFY_CEASE_ADMIN_RESET 4
1359#define BGP_NOTIFY_CEASE_CONNECT_REJECT 5
1360#define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6
545acafb 1361#define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7
1362#define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8
718e3744 1363
1364/* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */
1365#define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1
1366#define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2
1367#define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3
718e3744 1368
1369/* BGP finite state machine status. */
1370#define Idle 1
1371#define Connect 2
1372#define Active 3
1373#define OpenSent 4
1374#define OpenConfirm 5
1375#define Established 6
ca058a30
PJ		 1376#define Clearing 7
1377#define Deleted 8
1378#define BGP_STATUS_MAX 9
718e3744 1379
1380/* BGP finite state machine events. */
1381#define BGP_Start 1
1382#define BGP_Stop 2
1383#define TCP_connection_open 3
1384#define TCP_connection_closed 4
1385#define TCP_connection_open_failed 5
1386#define TCP_fatal_error 6
1387#define ConnectRetry_timer_expired 7
1388#define Hold_Timer_expired 8
1389#define KeepAlive_timer_expired 9
1390#define Receive_OPEN_message 10
1391#define Receive_KEEPALIVE_message 11
1392#define Receive_UPDATE_message 12
1393#define Receive_NOTIFICATION_message 13
ca058a30
PJ		 1394#define Clearing_Completed 14
1395#define BGP_EVENTS_MAX 15
718e3744 1396
1397/* BGP timers default value. */
8efe88ea 1398/* note: the DFLT_ ones depend on compile-time "defaults" selection */
5ca5f1c8 1399#define BGP_INIT_START_TIMER 1
8efe88ea
DL		 1400#define BGP_DEFAULT_HOLDTIME DFLT_BGP_HOLDTIME
1401#define BGP_DEFAULT_KEEPALIVE DFLT_BGP_KEEPALIVE
12179ba3 1402#define BGP_DEFAULT_EBGP_ROUTEADV 0
1670355a 1403#define BGP_DEFAULT_IBGP_ROUTEADV 0
8efe88ea 1404#define BGP_DEFAULT_CONNECT_RETRY DFLT_BGP_TIMERS_CONNECT
718e3744 1405
1406/* BGP default local preference. */
1407#define BGP_DEFAULT_LOCAL_PREF 100
1408
7f323236
DW		 1409/* BGP local-preference to send when 'bgp graceful-shutdown'
1410 * is configured */
1411#define BGP_GSHUT_LOCAL_PREF 0
1412
3f9c7369
DS		 1413/* BGP default subgroup packet queue max . */
1414#define BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX 40
1415
538621f2 1416/* BGP graceful restart */
1417#define BGP_DEFAULT_RESTART_TIME 120
1418#define BGP_DEFAULT_STALEPATH_TIME 360
1419
718e3744 1420/* BGP uptime string length. */
1421#define BGP_UPTIME_LEN 25
1422
1423/* Default configuration settings for bgpd. */
1424#define BGP_VTY_PORT 2605
718e3744 1425#define BGP_DEFAULT_CONFIG "bgpd.conf"
1426
1427/* Check AS path loop when we send NLRI. */
1428/* #define BGP_SEND_ASPATH_CHECK */
1429
f14e6fdb
DS		 1430/* BGP Dynamic Neighbors feature */
1431#define BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT 100
1432#define BGP_DYNAMIC_NEIGHBORS_LIMIT_MIN 1
1433#define BGP_DYNAMIC_NEIGHBORS_LIMIT_MAX 5000
1434
718e3744 1435/* Flag for peer_clear_soft(). */
d62a17ae 1436enum bgp_clear_type {
1437 BGP_CLEAR_SOFT_NONE,
1438 BGP_CLEAR_SOFT_OUT,
1439 BGP_CLEAR_SOFT_IN,
1440 BGP_CLEAR_SOFT_BOTH,
1441 BGP_CLEAR_SOFT_IN_ORF_PREFIX
718e3744 1442};
1443
1444/* Macros. */
424ab01d 1445#define BGP_INPUT(P) ((P)->curr)
2d34fb80 1446#define BGP_INPUT_PNT(P) (stream_pnt(BGP_INPUT(P)))
d62a17ae 1447#define BGP_IS_VALID_STATE_FOR_NOTIF(S) \
1448 (((S) == OpenSent) || ((S) == OpenConfirm) || ((S) == Established))
718e3744 1449
718e3744 1450/* BGP error codes. */
1451#define BGP_SUCCESS 0
1452#define BGP_ERR_INVALID_VALUE -1
1453#define BGP_ERR_INVALID_FLAG -2
1454#define BGP_ERR_INVALID_AS -3
1455#define BGP_ERR_INVALID_BGP -4
1456#define BGP_ERR_PEER_GROUP_MEMBER -5
1457#define BGP_ERR_MULTIPLE_INSTANCE_USED -6
c8560b44
DW		 1458#define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -7
1459#define BGP_ERR_PEER_GROUP_CANT_CHANGE -8
1460#define BGP_ERR_PEER_GROUP_MISMATCH -9
1461#define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -10
1462#define BGP_ERR_MULTIPLE_INSTANCE_NOT_SET -11
1463#define BGP_ERR_AS_MISMATCH -12
1464#define BGP_ERR_PEER_FLAG_CONFLICT -13
1465#define BGP_ERR_PEER_GROUP_SHUTDOWN -14
1466#define BGP_ERR_PEER_FILTER_CONFLICT -15
1467#define BGP_ERR_NOT_INTERNAL_PEER -16
1468#define BGP_ERR_REMOVE_PRIVATE_AS -17
1469#define BGP_ERR_AF_UNCONFIGURED -18
1470#define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -19
1471#define BGP_ERR_INSTANCE_MISMATCH -20
1472#define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -21
1473#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -22
1474#define BGP_ERR_TCPSIG_FAILED -23
1475#define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -24
1476#define BGP_ERR_NO_IBGP_WITH_TTLHACK -25
1477#define BGP_ERR_NO_INTERFACE_CONFIG -26
1478#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS -27
1479#define BGP_ERR_AS_OVERRIDE -28
1480#define BGP_ERR_INVALID_DYNAMIC_NEIGHBORS_LIMIT -29
1481#define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_EXISTS -30
1482#define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND -31
1483#define BGP_ERR_INVALID_FOR_DYNAMIC_PEER -32
1484#define BGP_ERR_MAX -33
63fa10b5 1485#define BGP_ERR_INVALID_FOR_DIRECT_PEER -34
9bedbb1e 1486#define BGP_ERR_PEER_SAFI_CONFLICT -35
718e3744 1487
3f9c7369
DS		 1488/*
1489 * Enumeration of different policy kinds a peer can be configured with.
1490 */
d62a17ae 1491typedef enum {
1492 BGP_POLICY_ROUTE_MAP,
1493 BGP_POLICY_FILTER_LIST,
1494 BGP_POLICY_PREFIX_LIST,
1495 BGP_POLICY_DISTRIBUTE_LIST,
3f9c7369
DS		 1496} bgp_policy_type_e;
1497
dcc68b5e
MS		 1498/* peer_flag_change_type. */
1499enum peer_change_type {
1500 peer_change_none,
1501 peer_change_reset,
1502 peer_change_reset_in,
1503 peer_change_reset_out,
1504};
1505
718e3744 1506extern struct bgp_master *bm;
37fe7731 1507extern unsigned int multipath_num;
718e3744 1508
718e3744 1509/* Prototypes. */
d62a17ae 1510extern void bgp_terminate(void);
1511extern void bgp_reset(void);
1512extern time_t bgp_clock(void);
1513extern void bgp_zclient_reset(void);
d62a17ae 1514extern struct bgp *bgp_get_default(void);
1515extern struct bgp *bgp_lookup(as_t, const char *);
1516extern struct bgp *bgp_lookup_by_name(const char *);
1517extern struct bgp *bgp_lookup_by_vrf_id(vrf_id_t);
e2f3a930
T		 1518extern struct bgp *bgp_get_evpn(void);
1519extern void bgp_set_evpn(struct bgp *bgp);
d62a17ae 1520extern struct peer *peer_lookup(struct bgp *, union sockunion *);
1521extern struct peer *peer_lookup_by_conf_if(struct bgp *, const char *);
04b6bdc0 1522extern struct peer *peer_lookup_by_hostname(struct bgp *, const char *);
d62a17ae 1523extern void bgp_peer_conf_if_to_su_update(struct peer *);
ffd0c037 1524extern int peer_group_listen_range_del(struct peer_group *, struct prefix *);
d62a17ae 1525extern struct peer_group *peer_group_lookup(struct bgp *, const char *);
1526extern struct peer_group *peer_group_get(struct bgp *, const char *);
1527extern struct peer *peer_create_bind_dynamic_neighbor(struct bgp *,
1528 union sockunion *,
1529 struct peer_group *);
1530extern struct prefix *
1531peer_group_lookup_dynamic_neighbor_range(struct peer_group *, struct prefix *);
1532extern struct peer_group *peer_group_lookup_dynamic_neighbor(struct bgp *,
1533 struct prefix *,
1534 struct prefix **);
1535extern struct peer *peer_lookup_dynamic_neighbor(struct bgp *,
1536 union sockunion *);
28066f4b
DS		 1537
1538/*
1539 * Peers are incredibly easy to memory leak
1540 * due to the various ways that they are actually used
1541 * Provide some functionality to debug locks and unlocks
1542 */
1543extern struct peer *peer_lock_with_caller(const char *, struct peer *);
1544extern struct peer *peer_unlock_with_caller(const char *, struct peer *);
1545#define peer_unlock(A) peer_unlock_with_caller(__FUNCTION__, (A))
1546#define peer_lock(B) peer_lock_with_caller(__FUNCTION__, (B))
1547
d62a17ae 1548extern bgp_peer_sort_t peer_sort(struct peer *peer);
1549extern int peer_active(struct peer *);
1550extern int peer_active_nego(struct peer *);
1551extern void bgp_recalculate_all_bestpaths(struct bgp *bgp);
a80beece 1552extern struct peer *peer_create(union sockunion *, const char *, struct bgp *,
d62a17ae 1553 as_t, as_t, int, afi_t, safi_t,
1554 struct peer_group *);
1555extern struct peer *peer_create_accept(struct bgp *);
1556extern void peer_xfer_config(struct peer *dst, struct peer *src);
94d4c685
DS		 1557extern char *peer_uptime(time_t uptime2, char *buf, size_t len, bool use_json,
1558 json_object *json);
856ca177 1559
d62a17ae 1560extern int bgp_config_write(struct vty *);
6b0655a2 1561
d62a17ae 1562extern void bgp_master_init(struct thread_master *master);
718e3744 1563
f533be73 1564extern void bgp_init(unsigned short instance);
419dfe6a 1565extern void bgp_pthreads_run(void);
2d4ee774 1566extern void bgp_pthreads_finish(void);
d62a17ae 1567extern void bgp_route_map_init(void);
1568extern void bgp_session_reset(struct peer *);
718e3744 1569
d62a17ae 1570extern int bgp_option_set(int);
1571extern int bgp_option_unset(int);
1572extern int bgp_option_check(int);
718e3744 1573
d62a17ae 1574extern int bgp_get(struct bgp **, as_t *, const char *, enum bgp_instance_type);
1575extern void bgp_instance_up(struct bgp *);
1576extern void bgp_instance_down(struct bgp *);
1577extern int bgp_delete(struct bgp *);
718e3744 1578
e5619c28
PG		 1579extern int bgp_handle_socket(struct bgp *bgp, struct vrf *vrf,
1580 vrf_id_t old_vrf_id, bool create);
1581
d62a17ae 1582extern int bgp_flag_set(struct bgp *, int);
1583extern int bgp_flag_unset(struct bgp *, int);
1584extern int bgp_flag_check(struct bgp *, int);
718e3744 1585
d62a17ae 1586extern void bgp_router_id_zebra_bump(vrf_id_t, const struct prefix *);
1587extern int bgp_router_id_static_set(struct bgp *, struct in_addr);
718e3744 1588
d62a17ae 1589extern int bgp_cluster_id_set(struct bgp *, struct in_addr *);
1590extern int bgp_cluster_id_unset(struct bgp *);
718e3744 1591
d62a17ae 1592extern int bgp_confederation_id_set(struct bgp *, as_t);
1593extern int bgp_confederation_id_unset(struct bgp *);
1594extern int bgp_confederation_peers_check(struct bgp *, as_t);
718e3744 1595
d62a17ae 1596extern int bgp_confederation_peers_add(struct bgp *, as_t);
1597extern int bgp_confederation_peers_remove(struct bgp *, as_t);
718e3744 1598
d7c0a89a 1599extern int bgp_timers_set(struct bgp *, uint32_t keepalive, uint32_t holdtime);
d62a17ae 1600extern int bgp_timers_unset(struct bgp *);
718e3744 1601
d7c0a89a 1602extern int bgp_default_local_preference_set(struct bgp *, uint32_t);
d62a17ae 1603extern int bgp_default_local_preference_unset(struct bgp *);
718e3744 1604
d7c0a89a 1605extern int bgp_default_subgroup_pkt_queue_max_set(struct bgp *bgp, uint32_t);
d62a17ae 1606extern int bgp_default_subgroup_pkt_queue_max_unset(struct bgp *bgp);
3f9c7369 1607
d62a17ae 1608extern int bgp_listen_limit_set(struct bgp *, int);
1609extern int bgp_listen_limit_unset(struct bgp *);
f14e6fdb 1610
d62a17ae 1611extern int bgp_update_delay_active(struct bgp *);
1612extern int bgp_update_delay_configured(struct bgp *);
318cac96 1613extern int bgp_afi_safi_peer_exists(struct bgp *bgp, afi_t afi, safi_t safi);
d62a17ae 1614extern void peer_as_change(struct peer *, as_t, int);
1615extern int peer_remote_as(struct bgp *, union sockunion *, const char *, as_t *,
1616 int, afi_t, safi_t);
1617extern int peer_group_remote_as(struct bgp *, const char *, as_t *, int);
1618extern int peer_delete(struct peer *peer);
1619extern int peer_group_delete(struct peer_group *);
1620extern int peer_group_remote_as_delete(struct peer_group *);
f14e6fdb 1621extern int peer_group_listen_range_add(struct peer_group *, struct prefix *);
718e3744 1622
d62a17ae 1623extern int peer_activate(struct peer *, afi_t, safi_t);
1624extern int peer_deactivate(struct peer *, afi_t, safi_t);
1625extern int peer_afc_set(struct peer *, afi_t, safi_t, int);
718e3744 1626
d62a17ae 1627extern int peer_group_bind(struct bgp *, union sockunion *, struct peer *,
1628 struct peer_group *, as_t *);
718e3744 1629
d7c0a89a
QY		 1630extern int peer_flag_set(struct peer *, uint32_t);
1631extern int peer_flag_unset(struct peer *, uint32_t);
9fb964de 1632extern void peer_flag_inherit(struct peer *peer, uint32_t flag);
718e3744 1633
d7c0a89a
QY		 1634extern int peer_af_flag_set(struct peer *, afi_t, safi_t, uint32_t);
1635extern int peer_af_flag_unset(struct peer *, afi_t, safi_t, uint32_t);
1636extern int peer_af_flag_check(struct peer *, afi_t, safi_t, uint32_t);
cf9ac8bf
PM		 1637extern void peer_af_flag_inherit(struct peer *peer, afi_t afi, safi_t safi,
1638 uint32_t flag);
dcc68b5e
MS		 1639extern void peer_change_action(struct peer *peer, afi_t afi, safi_t safi,
1640 enum peer_change_type type);
718e3744 1641
d62a17ae 1642extern int peer_ebgp_multihop_set(struct peer *, int);
1643extern int peer_ebgp_multihop_unset(struct peer *);
1644extern int is_ebgp_multihop_configured(struct peer *peer);
718e3744 1645
d62a17ae 1646extern int peer_description_set(struct peer *, const char *);
1647extern int peer_description_unset(struct peer *);
718e3744 1648
d62a17ae 1649extern int peer_update_source_if_set(struct peer *, const char *);
1650extern int peer_update_source_addr_set(struct peer *, const union sockunion *);
1651extern int peer_update_source_unset(struct peer *);
718e3744 1652
1de27621
DA		 1653extern int peer_default_originate_set(struct peer *peer, afi_t afi, safi_t safi,
1654 const char *rmap,
1655 struct route_map *route_map);
d62a17ae 1656extern int peer_default_originate_unset(struct peer *, afi_t, safi_t);
718e3744 1657
d7c0a89a 1658extern int peer_port_set(struct peer *, uint16_t);
d62a17ae 1659extern int peer_port_unset(struct peer *);
718e3744 1660
d7c0a89a 1661extern int peer_weight_set(struct peer *, afi_t, safi_t, uint16_t);
d62a17ae 1662extern int peer_weight_unset(struct peer *, afi_t, safi_t);
718e3744 1663
d7c0a89a
QY		 1664extern int peer_timers_set(struct peer *, uint32_t keepalive,
1665 uint32_t holdtime);
d62a17ae 1666extern int peer_timers_unset(struct peer *);
718e3744 1667
d7c0a89a 1668extern int peer_timers_connect_set(struct peer *, uint32_t);
d62a17ae 1669extern int peer_timers_connect_unset(struct peer *);
718e3744 1670
d7c0a89a 1671extern int peer_advertise_interval_set(struct peer *, uint32_t);
d62a17ae 1672extern int peer_advertise_interval_unset(struct peer *);
718e3744 1673
d62a17ae 1674extern void peer_interface_set(struct peer *, const char *);
1675extern void peer_interface_unset(struct peer *);
718e3744 1676
d62a17ae 1677extern int peer_distribute_set(struct peer *, afi_t, safi_t, int, const char *);
1678extern int peer_distribute_unset(struct peer *, afi_t, safi_t, int);
718e3744 1679
d62a17ae 1680extern int peer_allowas_in_set(struct peer *, afi_t, safi_t, int, int);
1681extern int peer_allowas_in_unset(struct peer *, afi_t, safi_t);
718e3744 1682
d62a17ae 1683extern int peer_local_as_set(struct peer *, as_t, int, int);
1684extern int peer_local_as_unset(struct peer *);
718e3744 1685
d62a17ae 1686extern int peer_prefix_list_set(struct peer *, afi_t, safi_t, int,
1687 const char *);
1688extern int peer_prefix_list_unset(struct peer *, afi_t, safi_t, int);
718e3744 1689
d62a17ae 1690extern int peer_aslist_set(struct peer *, afi_t, safi_t, int, const char *);
1691extern int peer_aslist_unset(struct peer *, afi_t, safi_t, int);
718e3744 1692
1de27621
DA		 1693extern int peer_route_map_set(struct peer *peer, afi_t afi, safi_t safi, int,
1694 const char *name, struct route_map *route_map);
d62a17ae 1695extern int peer_route_map_unset(struct peer *, afi_t, safi_t, int);
718e3744 1696
1de27621
DA		 1697extern int peer_unsuppress_map_set(struct peer *peer, afi_t afi, safi_t safi,
1698 const char *name,
1699 struct route_map *route_map);
0df7c91f 1700
d62a17ae 1701extern int peer_password_set(struct peer *, const char *);
1702extern int peer_password_unset(struct peer *);
0df7c91f 1703
d62a17ae 1704extern int peer_unsuppress_map_unset(struct peer *, afi_t, safi_t);
718e3744 1705
d7c0a89a
QY		 1706extern int peer_maximum_prefix_set(struct peer *, afi_t, safi_t, uint32_t,
1707 uint8_t, int, uint16_t);
d62a17ae 1708extern int peer_maximum_prefix_unset(struct peer *, afi_t, safi_t);
718e3744 1709
d62a17ae 1710extern int peer_clear(struct peer *, struct listnode **);
1711extern int peer_clear_soft(struct peer *, afi_t, safi_t, enum bgp_clear_type);
93406d87 1712
d62a17ae 1713extern int peer_ttl_security_hops_set(struct peer *, int);
1714extern int peer_ttl_security_hops_unset(struct peer *);
fa411a21 1715
d62a17ae 1716extern int peer_tx_shutdown_message_set(struct peer *, const char *msg);
1717extern int peer_tx_shutdown_message_unset(struct peer *);
73d70fa6 1718
d62a17ae 1719extern int bgp_route_map_update_timer(struct thread *thread);
518f0eb1 1720extern void bgp_route_map_terminate(void);
16286195 1721
d62a17ae 1722extern int peer_cmp(struct peer *p1, struct peer *p2);
3f9c7369 1723
5c525538 1724extern int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi, iana_safi_t pkt_safi,
d62a17ae 1725 afi_t *afi, safi_t *safi);
1726extern int bgp_map_afi_safi_int2iana(afi_t afi, safi_t safi,
a4d82a8a
PZ		 1727 iana_afi_t *pkt_afi,
1728 iana_safi_t *pkt_safi);
9cabb64b 1729
d62a17ae 1730extern struct peer_af *peer_af_create(struct peer *, afi_t, safi_t);
1731extern struct peer_af *peer_af_find(struct peer *, afi_t, safi_t);
1732extern int peer_af_delete(struct peer *, afi_t, safi_t);
3f9c7369 1733
ffd0c037 1734extern void bgp_close(void);
92375c91
JB		 1735extern void bgp_free(struct bgp *);
1736
1737static inline struct bgp *bgp_lock(struct bgp *bgp)
1738{
1739 bgp->lock++;
1740 return bgp;
1741}
1742
1743static inline void bgp_unlock(struct bgp *bgp)
1744{
1745 assert(bgp->lock > 0);
1746 if (--bgp->lock == 0)
1747 bgp_free(bgp);
1748}
ffd0c037 1749
d62a17ae 1750static inline int afindex(afi_t afi, safi_t safi)
3f9c7369 1751{
d62a17ae 1752 switch (afi) {
1753 case AFI_IP:
1754 switch (safi) {
1755 case SAFI_UNICAST:
1756 return BGP_AF_IPV4_UNICAST;
1757 break;
1758 case SAFI_MULTICAST:
1759 return BGP_AF_IPV4_MULTICAST;
1760 break;
1761 case SAFI_LABELED_UNICAST:
1762 return BGP_AF_IPV4_LBL_UNICAST;
1763 break;
1764 case SAFI_MPLS_VPN:
1765 return BGP_AF_IPV4_VPN;
1766 break;
1767 case SAFI_ENCAP:
1768 return BGP_AF_IPV4_ENCAP;
1769 break;
7c40bf39 1770 case SAFI_FLOWSPEC:
1771 return BGP_AF_IPV4_FLOWSPEC;
d62a17ae 1772 default:
1773 return BGP_AF_MAX;
1774 break;
1775 }
1776 break;
1777 case AFI_IP6:
1778 switch (safi) {
1779 case SAFI_UNICAST:
1780 return BGP_AF_IPV6_UNICAST;
1781 break;
1782 case SAFI_MULTICAST:
1783 return BGP_AF_IPV6_MULTICAST;
1784 break;
1785 case SAFI_LABELED_UNICAST:
1786 return BGP_AF_IPV6_LBL_UNICAST;
1787 break;
1788 case SAFI_MPLS_VPN:
1789 return BGP_AF_IPV6_VPN;
1790 break;
1791 case SAFI_ENCAP:
1792 return BGP_AF_IPV6_ENCAP;
1793 break;
7c40bf39 1794 case SAFI_FLOWSPEC:
1795 return BGP_AF_IPV6_FLOWSPEC;
d62a17ae 1796 default:
1797 return BGP_AF_MAX;
1798 break;
1799 }
1800 break;
1801 case AFI_L2VPN:
1802 switch (safi) {
1803 case SAFI_EVPN:
1804 return BGP_AF_L2VPN_EVPN;
1805 break;
1806 default:
1807 return BGP_AF_MAX;
1808 break;
1809 }
3f9c7369 1810 default:
d62a17ae 1811 return BGP_AF_MAX;
1812 break;
3f9c7369 1813 }
3f9c7369
DS		 1814}
1815
c8560b44 1816/* If the peer is not a peer-group but is bound to a peer-group return 1 */
d62a17ae 1817static inline int peer_group_active(struct peer *peer)
3f9c7369 1818{
d62a17ae 1819 if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) && peer->group)
1820 return 1;
1821 return 0;
3f9c7369
DS		 1822}
1823
1824/* If peer is negotiated at least one address family return 1. */
d62a17ae 1825static inline int peer_afi_active_nego(const struct peer *peer, afi_t afi)
3f9c7369 1826{
d62a17ae 1827 if (peer->afc_nego[afi][SAFI_UNICAST]
1828 || peer->afc_nego[afi][SAFI_MULTICAST]
1829 || peer->afc_nego[afi][SAFI_LABELED_UNICAST]
1830 || peer->afc_nego[afi][SAFI_MPLS_VPN]
1831 || peer->afc_nego[afi][SAFI_ENCAP]
7c40bf39 1832 || peer->afc_nego[afi][SAFI_FLOWSPEC]
d62a17ae 1833 || peer->afc_nego[afi][SAFI_EVPN])
1834 return 1;
1835 return 0;
3f9c7369
DS		 1836}
1837
f14e6fdb 1838/* If at least one address family activated for group, return 1. */
d62a17ae 1839static inline int peer_group_af_configured(struct peer_group *group)
f14e6fdb 1840{
d62a17ae 1841 struct peer *peer = group->conf;
1842
1843 if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST]
1844 || peer->afc[AFI_IP][SAFI_LABELED_UNICAST]
7c40bf39 1845 || peer->afc[AFI_IP][SAFI_FLOWSPEC]
d62a17ae 1846 || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP]
1847 || peer->afc[AFI_IP6][SAFI_UNICAST]
1848 || peer->afc[AFI_IP6][SAFI_MULTICAST]
1849 || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST]
1850 || peer->afc[AFI_IP6][SAFI_MPLS_VPN]
ba0fcaf6 1851 || peer->afc[AFI_IP6][SAFI_ENCAP]
7c40bf39 1852 || peer->afc[AFI_IP6][SAFI_FLOWSPEC]
ba0fcaf6 1853 || peer->afc[AFI_L2VPN][SAFI_EVPN])
d62a17ae 1854 return 1;
1855 return 0;
f14e6fdb
DS		 1856}
1857
d62a17ae 1858static inline char *timestamp_string(time_t ts)
3f9c7369 1859{
d62a17ae 1860 time_t tbuf;
1861 tbuf = time(NULL) - (bgp_clock() - ts);
1862 return ctime(&tbuf);
3f9c7369
DS		 1863}
1864
d62a17ae 1865static inline int peer_established(struct peer *peer)
3f9c7369 1866{
d62a17ae 1867 if (peer->status == Established)
1868 return 1;
1869 return 0;
3f9c7369
DS		 1870}
1871
d62a17ae 1872static inline int peer_dynamic_neighbor(struct peer *peer)
f14e6fdb 1873{
d62a17ae 1874 return (CHECK_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR)) ? 1 : 0;
f14e6fdb
DS		 1875}
1876
d62a17ae 1877static inline int peer_cap_enhe(struct peer *peer, afi_t afi, safi_t safi)
8a92a8a0 1878{
d62a17ae 1879 return (CHECK_FLAG(peer->af_cap[afi][safi], PEER_CAP_ENHE_AF_NEGO));
8a92a8a0
DS		 1880}
1881
d1be1f08 1882/* Lookup VRF for BGP instance based on its type. */
d62a17ae 1883static inline struct vrf *bgp_vrf_lookup_by_instance_type(struct bgp *bgp)
d1be1f08 1884{
d62a17ae 1885 struct vrf *vrf;
d1be1f08 1886
d62a17ae 1887 if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)
1888 vrf = vrf_lookup_by_id(VRF_DEFAULT);
1889 else if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF)
1890 vrf = vrf_lookup_by_name(bgp->name);
1891 else
1892 vrf = NULL;
d1be1f08 1893
d62a17ae 1894 return vrf;
d1be1f08 1895}
1896
1897/* Link BGP instance to VRF. */
d62a17ae 1898static inline void bgp_vrf_link(struct bgp *bgp, struct vrf *vrf)
d1be1f08 1899{
d62a17ae 1900 bgp->vrf_id = vrf->vrf_id;
92375c91
JB		 1901 if (vrf->info != (void *)bgp)
1902 vrf->info = (void *)bgp_lock(bgp);
d1be1f08 1903}
1904
1905/* Unlink BGP instance from VRF. */
d62a17ae 1906static inline void bgp_vrf_unlink(struct bgp *bgp, struct vrf *vrf)
d1be1f08 1907{
d62a17ae 1908 if (vrf->info == (void *)bgp) {
1909 vrf->info = NULL;
1910 bgp_unlock(bgp);
1911 }
1912 bgp->vrf_id = VRF_UNKNOWN;
d1be1f08 1913}
1914
401d56cc 1915extern void bgp_unset_redist_vrf_bitmaps(struct bgp *, vrf_id_t);
65efcfce
LB		 1916
1917/* For benefit of rfapi */
d62a17ae 1918extern struct peer *peer_new(struct bgp *bgp);
00d252cb 1919#endif /* _QUAGGA_BGPD_H */
FRRouting mirror