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bgpd: Accept no aggregate-address <IP> route-map <RMAP> commands
[mirror_frr.git] / bgpd / bgpd.h
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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
2b9bcf30 27#include "hook.h"
1ac267a2 28#include "frr_pthread.h"
856ca177 29#include "lib/json.h"
6aeb9e78 30#include "vrf.h"
94c60424 31#include "vty.h"
17136bf2 32#include "iana_afi.h"
6aeb9e78 33
718e3744 34/* For union sockunion. */
3f9c7369 35#include "queue.h"
718e3744 36#include "sockunion.h"
518f0eb1 37#include "routemap.h"
ffd0c037 38#include "linklist.h"
8efe88ea 39#include "defaults.h"
4a1ab8e4 40#include "bgp_memory.h"
14c1a7bf 41#include "bitfield.h"
fe1dc5a3 42#include "vxlan.h"
955bfd98 43#include "bgp_labelpool.h"
dcc68b5e 44#include "bgp_addpath_types.h"
718e3744 45
04b6bdc0 46#define BGP_MAX_HOSTNAME 64 /* Linux max, is larger than most other sys */
40520c36 47#define BGP_PEER_MAX_HASH_SIZE 16384
04b6bdc0 48
5c81b96a 49/* Default interval for IPv6 RAs when triggered by BGP unnumbered neighbor. */
50#define BGP_UNNUM_DEFAULT_RA_INTERVAL 10
51
3f9c7369
DS		 52struct update_subgroup;
53struct bpacket;
4762c213 54struct bgp_pbr_config;
3f9c7369 55
0299c004
DS		 56/*
57 * Allow the neighbor XXXX remote-as to take internal or external
d62a17ae 58 * AS_SPECIFIED is zero to auto-inherit original non-feature/enhancement
59 * behavior
0299c004
DS		 60 * in the system.
61 */
d62a17ae 62enum { AS_UNSPECIFIED = 0,
63 AS_SPECIFIED,
64 AS_INTERNAL,
65 AS_EXTERNAL,
0299c004
DS		 66};
67
718e3744 68/* Typedef BGP specific types. */
d7c0a89a
QY		 69typedef uint32_t as_t;
70typedef uint16_t as16_t; /* we may still encounter 16 Bit asnums */
71typedef uint16_t bgp_size_t;
718e3744 72
d62a17ae 73#define max(a, b) \
74 ({ \
75 __typeof__(a) _a = (a); \
76 __typeof__(b) _b = (b); \
77 _a > _b ? _a : _b; \
78 })
79
80enum bgp_af_index {
81 BGP_AF_START,
82 BGP_AF_IPV4_UNICAST = BGP_AF_START,
83 BGP_AF_IPV4_MULTICAST,
84 BGP_AF_IPV4_VPN,
85 BGP_AF_IPV6_UNICAST,
86 BGP_AF_IPV6_MULTICAST,
87 BGP_AF_IPV6_VPN,
88 BGP_AF_IPV4_ENCAP,
89 BGP_AF_IPV6_ENCAP,
90 BGP_AF_L2VPN_EVPN,
91 BGP_AF_IPV4_LBL_UNICAST,
92 BGP_AF_IPV6_LBL_UNICAST,
7c40bf39 93 BGP_AF_IPV4_FLOWSPEC,
94 BGP_AF_IPV6_FLOWSPEC,
d62a17ae 95 BGP_AF_MAX
3f9c7369
DS		 96};
97
d62a17ae 98#define AF_FOREACH(af) for ((af) = BGP_AF_START; (af) < BGP_AF_MAX; (af)++)
3f9c7369 99
d62a17ae 100#define FOREACH_AFI_SAFI(afi, safi) \
101 for (afi = AFI_IP; afi < AFI_MAX; afi++) \
102 for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++)
3f9c7369 103
d1927ebe
AS		 104#define FOREACH_SAFI(safi) \
105 for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++)
3f9c7369 106
1ac267a2
DL		 107extern struct frr_pthread *bgp_pth_io;
108extern struct frr_pthread *bgp_pth_ka;
109
718e3744 110/* BGP master for system wide configurations and variables. */
d62a17ae 111struct bgp_master {
112 /* BGP instance list. */
113 struct list *bgp;
114
115 /* BGP thread master. */
116 struct thread_master *master;
718e3744 117
d62a17ae 118 /* work queues */
119 struct work_queue *process_main_queue;
87d4a781 120
d62a17ae 121 /* Listening sockets */
122 struct list *listen_sockets;
718e3744 123
d62a17ae 124 /* BGP port number. */
d7c0a89a 125 uint16_t port;
3a02d1f7 126
d62a17ae 127 /* Listener address */
128 char *address;
718e3744 129
48ecf8f5
DS		 130 /* The Mac table */
131 struct hash *self_mac_hash;
132
d62a17ae 133 /* BGP start time. */
134 time_t start_time;
135
136 /* Various BGP global configuration. */
d7c0a89a 137 uint8_t options;
718e3744 138#define BGP_OPT_NO_FIB (1 << 0)
d8a9922d
DS		 139#define BGP_OPT_NO_LISTEN (1 << 1)
140#define BGP_OPT_NO_ZEBRA (1 << 2)
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)
718e3744 351#define BGP_FLAG_COMPARE_ROUTER_ID (1 << 7)
352#define BGP_FLAG_ASPATH_IGNORE (1 << 8)
353#define BGP_FLAG_IMPORT_CHECK (1 << 9)
354#define BGP_FLAG_NO_FAST_EXT_FAILOVER (1 << 10)
848973c7 355#define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1 << 11)
538621f2 356#define BGP_FLAG_GRACEFUL_RESTART (1 << 12)
6811845b 357#define BGP_FLAG_ASPATH_CONFED (1 << 13)
2fdd455c 358#define BGP_FLAG_ASPATH_MULTIPATH_RELAX (1 << 14)
8bd9d948 359#define BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY (1 << 15)
907f92c8 360#define BGP_FLAG_DISABLE_NH_CONNECTED_CHK (1 << 16)
219178b6 361#define BGP_FLAG_MULTIPATH_RELAX_AS_SET (1 << 17)
078430f6 362#define BGP_FLAG_FORCE_STATIC_PROCESS (1 << 18)
5623e905 363#define BGP_FLAG_SHOW_HOSTNAME (1 << 19)
6a9a3cde 364#define BGP_FLAG_GR_PRESERVE_FWD (1 << 20)
7f323236 365#define BGP_FLAG_GRACEFUL_SHUTDOWN (1 << 21)
9f822fa2 366#define BGP_FLAG_DELETE_IN_PROGRESS (1 << 22)
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
2b9bcf30
DL		 576DECLARE_HOOK(bgp_inst_delete, (struct bgp *bgp), (bgp))
577DECLARE_HOOK(bgp_inst_config_write,
578 (struct bgp *bgp, struct vty *vty),
579 (bgp, vty))
580
2a3d5731 581#define BGP_ROUTE_ADV_HOLD(bgp) (bgp->main_peers_update_hold)
d889623f 582
d62a17ae 583#define IS_BGP_INST_KNOWN_TO_ZEBRA(bgp) \
584 (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT \
585 || (bgp->inst_type == BGP_INSTANCE_TYPE_VRF \
586 && bgp->vrf_id != VRF_UNKNOWN))
ad4cbda1 587
718e3744 588/* BGP peer-group support. */
d62a17ae 589struct peer_group {
590 /* Name of the peer-group. */
591 char *name;
718e3744 592
d62a17ae 593 /* Pointer to BGP. */
594 struct bgp *bgp;
718e3744 595
d62a17ae 596 /* Peer-group client list. */
597 struct list *peer;
f14e6fdb 598
d62a17ae 599 /** Dynamic neighbor listening ranges */
600 struct list *listen_range[AFI_MAX];
601
602 /* Peer-group config */
603 struct peer *conf;
718e3744 604};
605
606/* BGP Notify message format. */
d62a17ae 607struct bgp_notify {
d7c0a89a
QY		 608 uint8_t code;
609 uint8_t subcode;
d62a17ae 610 char *data;
611 bgp_size_t length;
d7c0a89a 612 uint8_t *raw_data;
718e3744 613};
614
615/* Next hop self address. */
d62a17ae 616struct bgp_nexthop {
617 struct interface *ifp;
618 struct in_addr v4;
619 struct in6_addr v6_global;
620 struct in6_addr v6_local;
718e3744 621};
622
a82478b9
DS		 623/* BGP addpath values */
624#define BGP_ADDPATH_RX 1
625#define BGP_ADDPATH_TX 2
626#define BGP_ADDPATH_ID_LEN 4
627
adbac85e
DW		 628#define BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE 1
629
3f54c705 630/* Route map direction */
2a3d5731
DW		 631#define RMAP_IN 0
632#define RMAP_OUT 1
633#define RMAP_MAX 2
fee0f4c6 634
65efcfce
LB		 635#include "filter.h"
636
718e3744 637/* BGP filter structure. */
d62a17ae 638struct bgp_filter {
639 /* Distribute-list. */
640 struct {
641 char *name;
642 struct access_list *alist;
643 } dlist[FILTER_MAX];
644
645 /* Prefix-list. */
646 struct {
647 char *name;
648 struct prefix_list *plist;
649 } plist[FILTER_MAX];
650
651 /* Filter-list. */
652 struct {
653 char *name;
654 struct as_list *aslist;
655 } aslist[FILTER_MAX];
656
657 /* Route-map. */
658 struct {
659 char *name;
660 struct route_map *map;
661 } map[RMAP_MAX];
662
663 /* Unsuppress-map. */
664 struct {
665 char *name;
666 struct route_map *map;
667 } usmap;
718e3744 668};
669
6d85b15b
JBD		 670/* IBGP/EBGP identifier. We also have a CONFED peer, which is to say,
671 a peer who's AS is part of our Confederation. */
d62a17ae 672typedef enum {
faa16034
DS		 673 BGP_PEER_UNSPECIFIED,
674 BGP_PEER_IBGP,
d62a17ae 675 BGP_PEER_EBGP,
676 BGP_PEER_INTERNAL,
677 BGP_PEER_CONFED,
6d85b15b
JBD		 678} bgp_peer_sort_t;
679
d6661008
DS		 680/* BGP message header and packet size. */
681#define BGP_MARKER_SIZE 16
682#define BGP_HEADER_SIZE 19
683#define BGP_MAX_PACKET_SIZE 4096
0a91ff55 684#define BGP_MAX_PACKET_SIZE_OVERFLOW 1024
d6661008 685
3f9c7369
DS		 686/*
687 * Trigger delay for bgp_announce_route().
688 */
689#define BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS 100
690#define BGP_ANNOUNCE_ROUTE_DELAY_MS 500
691
d62a17ae 692struct peer_af {
693 /* back pointer to the peer */
694 struct peer *peer;
3f9c7369 695
d62a17ae 696 /* which subgroup the peer_af belongs to */
697 struct update_subgroup *subgroup;
3f9c7369 698
d62a17ae 699 /* for being part of an update subgroup's peer list */
700 LIST_ENTRY(peer_af) subgrp_train;
3f9c7369 701
d62a17ae 702 /* for being part of a packet's peer list */
703 LIST_ENTRY(peer_af) pkt_train;
3f9c7369 704
d62a17ae 705 struct bpacket *next_pkt_to_send;
3f9c7369 706
d62a17ae 707 /*
708 * Trigger timer for bgp_announce_route().
709 */
710 struct thread *t_announce_route;
3f9c7369 711
d62a17ae 712 afi_t afi;
713 safi_t safi;
714 int afid;
3f9c7369
DS		 715};
716
718e3744 717/* BGP neighbor structure. */
d62a17ae 718struct peer {
719 /* BGP structure. */
720 struct bgp *bgp;
721
722 /* reference count, primarily to allow bgp_process'ing of route_node's
723 * to be done after a struct peer is deleted.
724 *
725 * named 'lock' for hysterical reasons within Quagga.
726 */
727 int lock;
728
729 /* BGP peer group. */
730 struct peer_group *group;
731 uint64_t version[AFI_MAX][SAFI_MAX];
732
733 /* BGP peer_af structures, per configured AF on this peer */
734 struct peer_af *peer_af_array[BGP_AF_MAX];
735
736 /* Peer's remote AS number. */
737 int as_type;
738 as_t as;
739
740 /* Peer's local AS number. */
741 as_t local_as;
742
743 bgp_peer_sort_t sort;
744
745 /* Peer's Change local AS number. */
746 as_t change_local_as;
747
748 /* Remote router ID. */
749 struct in_addr remote_id;
750
751 /* Local router ID. */
752 struct in_addr local_id;
753
754 /* Packet receive and send buffer. */
424ab01d
QY		 755 pthread_mutex_t io_mtx; // guards ibuf, obuf
756 struct stream_fifo *ibuf; // packets waiting to be processed
757 struct stream_fifo *obuf; // packets waiting to be written
758
74ffbfe6
QY		 759 struct ringbuf *ibuf_work; // WiP buffer used by bgp_read() only
760 struct stream *obuf_work; // WiP buffer used to construct packets
424ab01d
QY		 761
762 struct stream *curr; // the current packet being parsed
d62a17ae 763
764 /* We use a separate stream to encode MP_REACH_NLRI for efficient
424ab01d 765 * NLRI packing. peer->obuf_work stores all the other attributes. The
d62a17ae 766 * actual packet is then constructed by concatenating the two.
767 */
768 struct stream *scratch;
769
770 /* the doppelganger peer structure, due to dual TCP conn setup */
771 struct peer *doppelganger;
772
773 /* Status of the peer. */
774 int status;
775 int ostatus;
776
777 /* FSM events, stored for debug purposes.
778 * Note: uchar used for reduced memory usage.
779 */
780 unsigned char cur_event;
781 unsigned char last_event;
782 unsigned char last_major_event;
783
784 /* Peer index, used for dumping TABLE_DUMP_V2 format */
785 uint16_t table_dump_index;
786
787 /* Peer information */
788 int fd; /* File descriptor */
789 int ttl; /* TTL of TCP connection to the peer. */
790 int rtt; /* Estimated round-trip-time from TCP_INFO */
791 int gtsm_hops; /* minimum hopcount to peer */
792 char *desc; /* Description of the peer. */
793 unsigned short port; /* Destination port for peer */
794 char *host; /* Printable address of the peer. */
795 union sockunion su; /* Sockunion address of the peer. */
a80beece 796#define BGP_PEER_SU_UNSPEC(peer) (peer->su.sa.sa_family == AF_UNSPEC)
d62a17ae 797 time_t uptime; /* Last Up/Down time */
798 time_t readtime; /* Last read time */
799 time_t resettime; /* Last reset time */
800
d62a17ae 801 char *conf_if; /* neighbor interface config name. */
802 struct interface *ifp; /* corresponding interface */
803 char *ifname; /* bind interface name. */
804 char *update_if;
805 union sockunion *update_source;
806
807 union sockunion *su_local; /* Sockunion of local address. */
808 union sockunion *su_remote; /* Sockunion of remote address. */
809 int shared_network; /* Is this peer shared same network. */
810 struct bgp_nexthop nexthop; /* Nexthop */
811
812 /* Peer address family configuration. */
d7c0a89a
QY		 813 uint8_t afc[AFI_MAX][SAFI_MAX];
814 uint8_t afc_nego[AFI_MAX][SAFI_MAX];
815 uint8_t afc_adv[AFI_MAX][SAFI_MAX];
816 uint8_t afc_recv[AFI_MAX][SAFI_MAX];
d62a17ae 817
818 /* Capability flags (reset in bgp_stop) */
d7c0a89a 819 uint32_t cap;
718e3744 820#define PEER_CAP_REFRESH_ADV (1 << 0) /* refresh advertised */
821#define PEER_CAP_REFRESH_OLD_RCV (1 << 1) /* refresh old received */
822#define PEER_CAP_REFRESH_NEW_RCV (1 << 2) /* refresh rfc received */
823#define PEER_CAP_DYNAMIC_ADV (1 << 3) /* dynamic advertised */
824#define PEER_CAP_DYNAMIC_RCV (1 << 4) /* dynamic received */
538621f2 825#define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */
826#define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */
0b2aa3a0
PJ		 827#define PEER_CAP_AS4_ADV (1 << 7) /* as4 advertised */
828#define PEER_CAP_AS4_RCV (1 << 8) /* as4 received */
fe7d2a48
DS		 829#define PEER_CAP_RESTART_BIT_ADV (1 << 9) /* sent restart state */
830#define PEER_CAP_RESTART_BIT_RCV (1 << 10) /* peer restart state */
a82478b9
DS		 831#define PEER_CAP_ADDPATH_ADV (1 << 11) /* addpath advertised */
832#define PEER_CAP_ADDPATH_RCV (1 << 12) /* addpath received */
c744aa9f
DS		 833#define PEER_CAP_ENHE_ADV (1 << 13) /* Extended nexthop advertised */
834#define PEER_CAP_ENHE_RCV (1 << 14) /* Extended nexthop received */
04b6bdc0
DW		 835#define PEER_CAP_HOSTNAME_ADV (1 << 15) /* hostname advertised */
836#define PEER_CAP_HOSTNAME_RCV (1 << 16) /* hostname received */
718e3744 837
d62a17ae 838 /* Capability flags (reset in bgp_stop) */
d7c0a89a 839 uint32_t af_cap[AFI_MAX][SAFI_MAX];
718e3744 840#define PEER_CAP_ORF_PREFIX_SM_ADV (1 << 0) /* send-mode advertised */
841#define PEER_CAP_ORF_PREFIX_RM_ADV (1 << 1) /* receive-mode advertised */
842#define PEER_CAP_ORF_PREFIX_SM_RCV (1 << 2) /* send-mode received */
843#define PEER_CAP_ORF_PREFIX_RM_RCV (1 << 3) /* receive-mode received */
844#define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1 << 4) /* send-mode received */
845#define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1 << 5) /* receive-mode received */
93406d87 846#define PEER_CAP_RESTART_AF_RCV (1 << 6) /* graceful restart afi/safi received */
847#define PEER_CAP_RESTART_AF_PRESERVE_RCV (1 << 7) /* graceful restart afi/safi F-bit received */
a82478b9
DS		 848#define PEER_CAP_ADDPATH_AF_TX_ADV (1 << 8) /* addpath tx advertised */
849#define PEER_CAP_ADDPATH_AF_TX_RCV (1 << 9) /* addpath tx received */
850#define PEER_CAP_ADDPATH_AF_RX_ADV (1 << 10) /* addpath rx advertised */
851#define PEER_CAP_ADDPATH_AF_RX_RCV (1 << 11) /* addpath rx received */
8a92a8a0
DS		 852#define PEER_CAP_ENHE_AF_ADV (1 << 12) /* Extended nexthopi afi/safi advertised */
853#define PEER_CAP_ENHE_AF_RCV (1 << 13) /* Extended nexthop afi/safi received */
854#define PEER_CAP_ENHE_AF_NEGO (1 << 14) /* Extended nexthop afi/safi negotiated */
718e3744 855
d62a17ae 856 /* Global configuration flags. */
9fb964de
PM		 857 /*
858 * Parallel array to flags that indicates whether each flag originates
859 * from a peer-group or if it is config that is specific to this
860 * individual peer. If a flag is set independent of the peer-group, the
861 * same bit should be set here. If this peer is a peer-group, this
862 * memory region should be all zeros.
863 *
864 * The assumption is that the default state for all flags is unset,
865 * so if a flag is unset, the corresponding override flag is unset too.
866 * However if a flag is set, the corresponding override flag is set.
867 */
868 uint32_t flags_override;
869 /*
870 * Parallel array to flags that indicates whether the default behavior
871 * of *flags_override* should be inverted. If a flag is unset and the
872 * corresponding invert flag is set, the corresponding override flag
873 * would be set. However if a flag is set and the corresponding invert
874 * flag is unset, the corresponding override flag would be unset.
875 *
876 * This can be used for attributes like *send-community*, which are
877 * implicitely enabled and have to be disabled explicitely, compared to
878 * 'normal' attributes like *next-hop-self* which are implicitely set.
879 *
880 * All operations dealing with flags should apply the following boolean
881 * logic to keep the internal flag system in a sane state:
882 *
883 * value=0 invert=0 Inherit flag if member, otherwise unset flag
884 * value=0 invert=1 Unset flag unconditionally
885 * value=1 invert=0 Set flag unconditionally
886 * value=1 invert=1 Inherit flag if member, otherwise set flag
887 *
888 * Contrary to the implementation of *flags_override*, the flag
889 * inversion state can be set either on the peer OR the peer *and* the
890 * peer-group. This was done on purpose, as the inversion state of a
891 * flag can be determined on either the peer or the peer-group.
892 *
893 * Example: Enabling the cisco configuration mode inverts all flags
894 * related to *send-community* unconditionally for both peer-groups and
895 * peers.
896 *
897 * This behavior is different for interface peers though, which enable
898 * the *extended-nexthop* flag by default, which regular peers do not.
899 * As the peer-group can contain both regular and interface peers, the
900 * flag inversion state must be set on the peer only.
901 *
902 * When a peer inherits the configuration from a peer-group and the
903 * inversion state of the flag differs between peer and peer-group, the
904 * newly set value must equal to the inverted state of the peer-group.
905 */
906 uint32_t flags_invert;
907 /*
908 * Effective array for storing the peer/peer-group flags. In case of a
909 * peer-group, the peer-specific overrides (see flags_override and
910 * flags_invert) must be respected.
911 */
d7c0a89a 912 uint32_t flags;
718e3744 913#define PEER_FLAG_PASSIVE (1 << 0) /* passive mode */
914#define PEER_FLAG_SHUTDOWN (1 << 1) /* shutdown */
915#define PEER_FLAG_DONT_CAPABILITY (1 << 2) /* dont-capability */
916#define PEER_FLAG_OVERRIDE_CAPABILITY (1 << 3) /* override-capability */
917#define PEER_FLAG_STRICT_CAP_MATCH (1 << 4) /* strict-match */
c9502438 918#define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 5) /* dynamic capability */
6ffd2079 919#define PEER_FLAG_DISABLE_CONNECTED_CHECK (1 << 6) /* disable-connected-check */
c9502438 920#define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 7) /* local-as no-prepend */
9d3f9705 921#define PEER_FLAG_LOCAL_AS_REPLACE_AS (1 << 8) /* local-as no-prepend replace-as */
47cbc09b
PM		 922#define PEER_FLAG_DELETE (1 << 9) /* mark the peer for deleting */
923#define PEER_FLAG_CONFIG_NODE (1 << 10) /* the node to update configs on */
7f342629
DS		 924#define PEER_FLAG_LONESOUL (1 << 11)
925#define PEER_FLAG_DYNAMIC_NEIGHBOR (1 << 12) /* dynamic neighbor */
926#define PEER_FLAG_CAPABILITY_ENHE (1 << 13) /* Extended next-hop (rfc 5549)*/
88177fe3 927#define PEER_FLAG_IFPEER_V6ONLY (1 << 14) /* if-based peer is v6 only */
47cbc09b
PM		 928#define PEER_FLAG_IS_RFAPI_HD (1 << 15) /* attached to rfapi HD */
929#define PEER_FLAG_ENFORCE_FIRST_AS (1 << 16) /* enforce-first-as */
b90a8e13
PM		 930#define PEER_FLAG_ROUTEADV (1 << 17) /* route advertise */
931#define PEER_FLAG_TIMER (1 << 18) /* keepalive & holdtime */
932#define PEER_FLAG_TIMER_CONNECT (1 << 19) /* connect timer */
a14810f4
PM		 933#define PEER_FLAG_PASSWORD (1 << 20) /* password */
934#define PEER_FLAG_LOCAL_AS (1 << 21) /* local-as */
935#define PEER_FLAG_UPDATE_SOURCE (1 << 22) /* update-source */
02a82b47 936
d62a17ae 937 /* outgoing message sent in CEASE_ADMIN_SHUTDOWN notify */
938 char *tx_shutdown_message;
718e3744 939
d62a17ae 940 /* NSF mode (graceful restart) */
d7c0a89a 941 uint8_t nsf[AFI_MAX][SAFI_MAX];
93406d87 942
04e1c5bb
QY		 943 /* Peer Per AF flags */
944 /*
9fb964de
PM		 945 * Please consult the comments for *flags_override*, *flags_invert* and
946 * *flags* to understand what these three arrays do. The address-family
947 * specific attributes are being treated the exact same way as global
948 * peer attributes.
04e1c5bb
QY		 949 */
950 uint32_t af_flags_override[AFI_MAX][SAFI_MAX];
27c05d4d 951 uint32_t af_flags_invert[AFI_MAX][SAFI_MAX];
d7c0a89a 952 uint32_t af_flags[AFI_MAX][SAFI_MAX];
718e3744 953#define PEER_FLAG_SEND_COMMUNITY (1 << 0) /* send-community */
954#define PEER_FLAG_SEND_EXT_COMMUNITY (1 << 1) /* send-community ext. */
955#define PEER_FLAG_NEXTHOP_SELF (1 << 2) /* next-hop-self */
956#define PEER_FLAG_REFLECTOR_CLIENT (1 << 3) /* reflector-client */
957#define PEER_FLAG_RSERVER_CLIENT (1 << 4) /* route-server-client */
958#define PEER_FLAG_SOFT_RECONFIG (1 << 5) /* soft-reconfiguration */
959#define PEER_FLAG_AS_PATH_UNCHANGED (1 << 6) /* transparent-as */
960#define PEER_FLAG_NEXTHOP_UNCHANGED (1 << 7) /* transparent-next-hop */
961#define PEER_FLAG_MED_UNCHANGED (1 << 8) /* transparent-next-hop */
962#define PEER_FLAG_DEFAULT_ORIGINATE (1 << 9) /* default-originate */
963#define PEER_FLAG_REMOVE_PRIVATE_AS (1 << 10) /* remove-private-as */
964#define PEER_FLAG_ALLOWAS_IN (1 << 11) /* set allowas-in */
965#define PEER_FLAG_ORF_PREFIX_SM (1 << 12) /* orf capability send-mode */
966#define PEER_FLAG_ORF_PREFIX_RM (1 << 13) /* orf capability receive-mode */
967#define PEER_FLAG_MAX_PREFIX (1 << 14) /* maximum prefix */
968#define PEER_FLAG_MAX_PREFIX_WARNING (1 << 15) /* maximum prefix warning-only */
0df7c91f 969#define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1 << 16) /* leave link-local nexthop unchanged */
a538debe 970#define PEER_FLAG_FORCE_NEXTHOP_SELF (1 << 17) /* next-hop-self force */
5000f21c
DS		 971#define PEER_FLAG_REMOVE_PRIVATE_AS_ALL (1 << 18) /* remove-private-as all */
972#define PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE (1 << 19) /* remove-private-as replace-as */
c7122e14 973#define PEER_FLAG_AS_OVERRIDE (1 << 20) /* as-override */
88b8ed8d 974#define PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE (1 << 21) /* remove-private-as all replace-as */
d93f7ffc 975#define PEER_FLAG_WEIGHT (1 << 24) /* weight */
aac9ef6c 976#define PEER_FLAG_ALLOWAS_IN_ORIGIN (1 << 25) /* allowas-in origin */
57d187bc 977#define PEER_FLAG_SEND_LARGE_COMMUNITY (1 << 26) /* Send large Communities */
0df7c91f 978
dcc68b5e
MS		 979 enum bgp_addpath_strat addpath_type[AFI_MAX][SAFI_MAX];
980
d62a17ae 981 /* MD5 password */
982 char *password;
718e3744 983
d62a17ae 984 /* default-originate route-map. */
985 struct {
986 char *name;
987 struct route_map *map;
988 } default_rmap[AFI_MAX][SAFI_MAX];
718e3744 989
d62a17ae 990 /* Peer status flags. */
d7c0a89a 991 uint16_t sflags;
718e3744 992#define PEER_STATUS_ACCEPT_PEER (1 << 0) /* accept peer */
993#define PEER_STATUS_PREFIX_OVERFLOW (1 << 1) /* prefix-overflow */
994#define PEER_STATUS_CAPABILITY_OPEN (1 << 2) /* capability open send */
995#define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */
996#define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */
93406d87 997#define PEER_STATUS_NSF_MODE (1 << 5) /* NSF aware peer */
998#define PEER_STATUS_NSF_WAIT (1 << 6) /* wait comeback peer */
718e3744 999
d62a17ae 1000 /* Peer status af flags (reset in bgp_stop) */
d7c0a89a 1001 uint16_t af_sflags[AFI_MAX][SAFI_MAX];
718e3744 1002#define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */
1003#define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */
840fced9
DS		 1004#define PEER_STATUS_PREFIX_THRESHOLD (1 << 2) /* exceed prefix-threshold */
1005#define PEER_STATUS_PREFIX_LIMIT (1 << 3) /* exceed prefix-limit */
1006#define PEER_STATUS_EOR_SEND (1 << 4) /* end-of-rib send to peer */
1007#define PEER_STATUS_EOR_RECEIVED (1 << 5) /* end-of-rib received from peer */
e0701b79 1008
b90a8e13 1009 /* Configured timer values. */
1588f6f4
QY		 1010 _Atomic uint32_t holdtime;
1011 _Atomic uint32_t keepalive;
1012 _Atomic uint32_t connect;
1013 _Atomic uint32_t routeadv;
d62a17ae 1014
1015 /* Timer values. */
1588f6f4
QY		 1016 _Atomic uint32_t v_start;
1017 _Atomic uint32_t v_connect;
1018 _Atomic uint32_t v_holdtime;
1019 _Atomic uint32_t v_keepalive;
1020 _Atomic uint32_t v_routeadv;
1021 _Atomic uint32_t v_pmax_restart;
1022 _Atomic uint32_t v_gr_restart;
d62a17ae 1023
1024 /* Threads. */
1025 struct thread *t_read;
424ab01d 1026 struct thread *t_write;
d62a17ae 1027 struct thread *t_start;
387f984e
QY		 1028 struct thread *t_connect_check_r;
1029 struct thread *t_connect_check_w;
d62a17ae 1030 struct thread *t_connect;
1031 struct thread *t_holdtime;
d62a17ae 1032 struct thread *t_routeadv;
1033 struct thread *t_pmax_restart;
1034 struct thread *t_gr_restart;
1035 struct thread *t_gr_stale;
56257a44 1036 struct thread *t_generate_updgrp_packets;
424ab01d 1037 struct thread *t_process_packet;
d62a17ae 1038
49507a6f 1039 /* Thread flags. */
0545c373 1040 _Atomic uint32_t thread_flags;
b750b0ba
QY		 1041#define PEER_THREAD_WRITES_ON (1 << 0)
1042#define PEER_THREAD_READS_ON (1 << 1)
1043#define PEER_THREAD_KEEPALIVES_ON (1 << 2)
d62a17ae 1044 /* workqueues */
1045 struct work_queue *clear_node_queue;
1046
a4d82a8a
PZ		 1047#define PEER_TOTAL_RX(peer) \
1048 atomic_load_explicit(&peer->open_in, memory_order_relaxed) \
1049 + atomic_load_explicit(&peer->update_in, memory_order_relaxed) \
1050 + atomic_load_explicit(&peer->notify_in, memory_order_relaxed) \
1051 + atomic_load_explicit(&peer->refresh_in, \
1052 memory_order_relaxed) \
1053 + atomic_load_explicit(&peer->keepalive_in, \
1054 memory_order_relaxed) \
1055 + atomic_load_explicit(&peer->dynamic_cap_in, \
1056 memory_order_relaxed)
1057
1058#define PEER_TOTAL_TX(peer) \
1059 atomic_load_explicit(&peer->open_out, memory_order_relaxed) \
1060 + atomic_load_explicit(&peer->update_out, \
1061 memory_order_relaxed) \
1062 + atomic_load_explicit(&peer->notify_out, \
1063 memory_order_relaxed) \
1064 + atomic_load_explicit(&peer->refresh_out, \
1065 memory_order_relaxed) \
1066 + atomic_load_explicit(&peer->keepalive_out, \
1067 memory_order_relaxed) \
1068 + atomic_load_explicit(&peer->dynamic_cap_out, \
1069 memory_order_relaxed)
0112e9e0 1070
d62a17ae 1071 /* Statistics field */
996c9314
LB		 1072 _Atomic uint32_t open_in; /* Open message input count */
1073 _Atomic uint32_t open_out; /* Open message output count */
1588f6f4
QY		 1074 _Atomic uint32_t update_in; /* Update message input count */
1075 _Atomic uint32_t update_out; /* Update message ouput count */
1076 _Atomic time_t update_time; /* Update message received time. */
1077 _Atomic uint32_t keepalive_in; /* Keepalive input count */
1078 _Atomic uint32_t keepalive_out; /* Keepalive output count */
1079 _Atomic uint32_t notify_in; /* Notify input count */
1080 _Atomic uint32_t notify_out; /* Notify output count */
1081 _Atomic uint32_t refresh_in; /* Route Refresh input count */
1082 _Atomic uint32_t refresh_out; /* Route Refresh output count */
1083 _Atomic uint32_t dynamic_cap_in; /* Dynamic Capability input count. */
a4d82a8a 1084 _Atomic uint32_t dynamic_cap_out; /* Dynamic Capability output count. */
d62a17ae 1085
b4d46cc9
DL		 1086 uint32_t stat_pfx_filter;
1087 uint32_t stat_pfx_aspath_loop;
1088 uint32_t stat_pfx_originator_loop;
1089 uint32_t stat_pfx_cluster_loop;
1090 uint32_t stat_pfx_nh_invalid;
1091 uint32_t stat_pfx_dup_withdraw;
1092 uint32_t stat_upd_7606; /* RFC7606: treat-as-withdraw */
1093
d62a17ae 1094 /* BGP state count */
d7c0a89a
QY		 1095 uint32_t established; /* Established */
1096 uint32_t dropped; /* Dropped */
d62a17ae 1097
1098 /* Update delay related fields */
d7c0a89a 1099 uint8_t update_delay_over; /* When this is set, BGP is no more waiting
d62a17ae 1100 for EOR */
1101
1102 /* Syncronization list and time. */
1103 struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX];
1104 time_t synctime;
1588f6f4
QY		 1105 /* timestamp when the last UPDATE msg was written */
1106 _Atomic time_t last_write;
1107 /* timestamp when the last msg was written */
1108 _Atomic time_t last_update;
d62a17ae 1109
1110 /* Send prefix count. */
1111 unsigned long scount[AFI_MAX][SAFI_MAX];
1112
d62a17ae 1113 /* Notify data. */
1114 struct bgp_notify notify;
1115
d62a17ae 1116 /* Filter structure. */
1117 struct bgp_filter filter[AFI_MAX][SAFI_MAX];
1118
70ee29b4
PM		 1119 /*
1120 * Parallel array to filter that indicates whether each filter
1121 * originates from a peer-group or if it is config that is specific to
1122 * this individual peer. If a filter is set independent of the
1123 * peer-group the appropriate bit should be set here. If this peer is a
1124 * peer-group, this memory region should be all zeros. The assumption
1125 * is that the default state for all flags is unset. Due to filters
1126 * having a direction (e.g. in/out/...), this array has a third
1127 * dimension for storing the overrides independently per direction.
1128 *
1129 * Notes:
1130 * - if a filter for an individual peer is unset, the corresponding
1131 * override flag is unset and the peer is considered to be back in
1132 * sync with the peer-group.
1133 * - This does *not* contain the filter values, rather it contains
1134 * whether the filter in filter (struct bgp_filter) is peer-specific.
1135 */
1136 uint8_t filter_override[AFI_MAX][SAFI_MAX][(FILTER_MAX > RMAP_MAX)
1137 ? FILTER_MAX
1138 : RMAP_MAX];
1139#define PEER_FT_DISTRIBUTE_LIST (1 << 0) /* distribute-list */
1140#define PEER_FT_FILTER_LIST (1 << 1) /* filter-list */
1141#define PEER_FT_PREFIX_LIST (1 << 2) /* prefix-list */
1142#define PEER_FT_ROUTE_MAP (1 << 3) /* route-map */
1143#define PEER_FT_UNSUPPRESS_MAP (1 << 4) /* unsuppress-map */
1144
d62a17ae 1145 /* ORF Prefix-list */
1146 struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX];
1147
1148 /* Text description of last attribute rcvd */
1149 char rcvd_attr_str[BUFSIZ];
1150
1151 /* Track if we printed the attribute in debugs */
1152 int rcvd_attr_printed;
1153
1154 /* Prefix count. */
1155 unsigned long pcount[AFI_MAX][SAFI_MAX];
1156
1157 /* Max prefix count. */
1158 unsigned long pmax[AFI_MAX][SAFI_MAX];
d7c0a89a
QY		 1159 uint8_t pmax_threshold[AFI_MAX][SAFI_MAX];
1160 uint16_t pmax_restart[AFI_MAX][SAFI_MAX];
e0701b79 1161#define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75
718e3744 1162
d62a17ae 1163 /* allowas-in. */
1164 char allowas_in[AFI_MAX][SAFI_MAX];
ac41b2a2 1165
d62a17ae 1166 /* weight */
1167 unsigned long weight[AFI_MAX][SAFI_MAX];
d93f7ffc 1168
d62a17ae 1169 /* peer reset cause */
1a1f4534 1170 uint8_t last_reset;
e0701b79 1171#define PEER_DOWN_RID_CHANGE 1 /* bgp router-id command */
1172#define PEER_DOWN_REMOTE_AS_CHANGE 2 /* neighbor remote-as command */
1173#define PEER_DOWN_LOCAL_AS_CHANGE 3 /* neighbor local-as command */
1174#define PEER_DOWN_CLID_CHANGE 4 /* bgp cluster-id command */
1175#define PEER_DOWN_CONFED_ID_CHANGE 5 /* bgp confederation identifier command */
1176#define PEER_DOWN_CONFED_PEER_CHANGE 6 /* bgp confederation peer command */
1177#define PEER_DOWN_RR_CLIENT_CHANGE 7 /* neighbor route-reflector-client command */
1178#define PEER_DOWN_RS_CLIENT_CHANGE 8 /* neighbor route-server-client command */
1179#define PEER_DOWN_UPDATE_SOURCE_CHANGE 9 /* neighbor update-source command */
1180#define PEER_DOWN_AF_ACTIVATE 10 /* neighbor activate command */
1181#define PEER_DOWN_USER_SHUTDOWN 11 /* neighbor shutdown command */
1182#define PEER_DOWN_USER_RESET 12 /* clear ip bgp command */
1183#define PEER_DOWN_NOTIFY_RECEIVED 13 /* notification received */
1184#define PEER_DOWN_NOTIFY_SEND 14 /* notification send */
1185#define PEER_DOWN_CLOSE_SESSION 15 /* tcp session close */
1186#define PEER_DOWN_NEIGHBOR_DELETE 16 /* neghbor delete */
1187#define PEER_DOWN_RMAP_BIND 17 /* neghbor peer-group command */
1188#define PEER_DOWN_RMAP_UNBIND 18 /* no neighbor peer-group command */
1189#define PEER_DOWN_CAPABILITY_CHANGE 19 /* neighbor capability command */
1190#define PEER_DOWN_PASSIVE_CHANGE 20 /* neighbor passive command */
1191#define PEER_DOWN_MULTIHOP_CHANGE 21 /* neighbor multihop command */
93406d87 1192#define PEER_DOWN_NSF_CLOSE_SESSION 22 /* NSF tcp session close */
8ffedcea 1193#define PEER_DOWN_V6ONLY_CHANGE 23 /* if-based peering v6only toggled */
7bbc6864 1194#define PEER_DOWN_BFD_DOWN 24 /* BFD down */
e60480bd
DD		 1195#define PEER_DOWN_IF_DOWN 25 /* Interface down */
1196#define PEER_DOWN_NBR_ADDR_DEL 26 /* Peer address lost */
3577f1c5
DD		 1197#define PEER_DOWN_WAITING_NHT 27 /* Waiting for NHT to resolve */
1198#define PEER_DOWN_NBR_ADDR 28 /* Waiting for peer IPv6 IP Addr */
1199#define PEER_DOWN_VRF_UNINIT 29 /* Associated VRF is not init yet */
05912a17 1200#define PEER_DOWN_NOAFI_ACTIVATED 30 /* No AFI/SAFI activated for peer */
1a1f4534 1201 size_t last_reset_cause_size;
d7c0a89a 1202 uint8_t last_reset_cause[BGP_MAX_PACKET_SIZE];
e0701b79 1203
d62a17ae 1204 /* The kind of route-map Flags.*/
d15d460d 1205 uint16_t rmap_type;
ac41b2a2 1206#define PEER_RMAP_TYPE_IN (1 << 0) /* neighbor route-map in */
1207#define PEER_RMAP_TYPE_OUT (1 << 1) /* neighbor route-map out */
1208#define PEER_RMAP_TYPE_NETWORK (1 << 2) /* network route-map */
1209#define PEER_RMAP_TYPE_REDISTRIBUTE (1 << 3) /* redistribute route-map */
1210#define PEER_RMAP_TYPE_DEFAULT (1 << 4) /* default-originate route-map */
1211#define PEER_RMAP_TYPE_NOSET (1 << 5) /* not allow to set commands */
fee0f4c6 1212#define PEER_RMAP_TYPE_IMPORT (1 << 6) /* neighbor route-map import */
1213#define PEER_RMAP_TYPE_EXPORT (1 << 7) /* neighbor route-map export */
cde3c2b2 1214#define PEER_RMAP_TYPE_AGGREGATE (1 << 8) /* aggregate-address route-map */
6410e93a 1215
d62a17ae 1216 /* peer specific BFD information */
1217 struct bfd_info *bfd_info;
04b6bdc0 1218
d62a17ae 1219 /* hostname and domainname advertised by host */
1220 char *hostname;
1221 char *domainname;
19df7279 1222
d62a17ae 1223 QOBJ_FIELDS
718e3744 1224};
19df7279 1225DECLARE_QOBJ_TYPE(peer)
718e3744 1226
598ce6bd 1227/* Inherit peer attribute from peer-group. */
e7103a96
PM		 1228#define PEER_ATTR_INHERIT(peer, group, attr) \
1229 ((peer)->attr = (group)->conf->attr)
1230#define PEER_STR_ATTR_INHERIT(peer, group, attr, mt) \
598ce6bd
PM		 1231 do { \
1232 if ((peer)->attr) \
1233 XFREE(mt, (peer)->attr); \
e7103a96
PM		 1234 if ((group)->conf->attr) \
1235 (peer)->attr = XSTRDUP(mt, (group)->conf->attr); \
598ce6bd
PM		 1236 else \
1237 (peer)->attr = NULL; \
1238 } while (0)
a14810f4
PM		 1239#define PEER_SU_ATTR_INHERIT(peer, group, attr) \
1240 do { \
1241 if ((peer)->attr) \
1242 sockunion_free((peer)->attr); \
1243 if ((group)->conf->attr) \
1244 (peer)->attr = sockunion_dup((group)->conf->attr); \
1245 else \
1246 (peer)->attr = NULL; \
1247 } while (0)
598ce6bd 1248
ad4cbda1 1249/* Check if suppress start/restart of sessions to peer. */
d62a17ae 1250#define BGP_PEER_START_SUPPRESSED(P) \
1251 (CHECK_FLAG((P)->flags, PEER_FLAG_SHUTDOWN) \
1252 || CHECK_FLAG((P)->sflags, PEER_STATUS_PREFIX_OVERFLOW))
ad4cbda1 1253
0df7c91f
PJ		 1254#define PEER_PASSWORD_MINLEN (1)
1255#define PEER_PASSWORD_MAXLEN (80)
1256
718e3744 1257/* This structure's member directly points incoming packet data
1258 stream. */
d62a17ae 1259struct bgp_nlri {
1260 /* AFI. */
a46a2e9b 1261 uint16_t afi; /* iana_afi_t */
718e3744 1262
d62a17ae 1263 /* SAFI. */
a46a2e9b 1264 uint8_t safi; /* iana_safi_t */
718e3744 1265
d62a17ae 1266 /* Pointer to NLRI byte stream. */
d7c0a89a 1267 uint8_t *nlri;
718e3744 1268
d62a17ae 1269 /* Length of whole NLRI. */
1270 bgp_size_t length;
718e3744 1271};
1272
1273/* BGP versions. */
1274#define BGP_VERSION_4 4
718e3744 1275
1276/* Default BGP port number. */
1277#define BGP_PORT_DEFAULT 179
1278
718e3744 1279/* BGP minimum message size. */
1280#define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10)
1281#define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4)
1282#define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2)
1283#define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0)
1284#define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4)
1285#define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3)
1286
1287/* BGP message types. */
1288#define BGP_MSG_OPEN 1
1289#define BGP_MSG_UPDATE 2
1290#define BGP_MSG_NOTIFY 3
1291#define BGP_MSG_KEEPALIVE 4
1292#define BGP_MSG_ROUTE_REFRESH_NEW 5
1293#define BGP_MSG_CAPABILITY 6
1294#define BGP_MSG_ROUTE_REFRESH_OLD 128
1295
1296/* BGP open optional parameter. */
1297#define BGP_OPEN_OPT_AUTH 1
1298#define BGP_OPEN_OPT_CAP 2
1299
1300/* BGP4 attribute type codes. */
1301#define BGP_ATTR_ORIGIN 1
1302#define BGP_ATTR_AS_PATH 2
1303#define BGP_ATTR_NEXT_HOP 3
1304#define BGP_ATTR_MULTI_EXIT_DISC 4
1305#define BGP_ATTR_LOCAL_PREF 5
1306#define BGP_ATTR_ATOMIC_AGGREGATE 6
1307#define BGP_ATTR_AGGREGATOR 7
1308#define BGP_ATTR_COMMUNITIES 8
1309#define BGP_ATTR_ORIGINATOR_ID 9
1310#define BGP_ATTR_CLUSTER_LIST 10
1311#define BGP_ATTR_DPA 11
1312#define BGP_ATTR_ADVERTISER 12
1313#define BGP_ATTR_RCID_PATH 13
1314#define BGP_ATTR_MP_REACH_NLRI 14
1315#define BGP_ATTR_MP_UNREACH_NLRI 15
1316#define BGP_ATTR_EXT_COMMUNITIES 16
0b2aa3a0
PJ		 1317#define BGP_ATTR_AS4_PATH 17
1318#define BGP_ATTR_AS4_AGGREGATOR 18
41367172 1319#define BGP_ATTR_AS_PATHLIMIT 21
a21bd7a3 1320#define BGP_ATTR_PMSI_TUNNEL 22
f4c89855 1321#define BGP_ATTR_ENCAP 23
57d187bc 1322#define BGP_ATTR_LARGE_COMMUNITIES 32
c5a543b4 1323#define BGP_ATTR_PREFIX_SID 40
943d595a 1324#if ENABLE_BGP_VNC_ATTR
65efcfce
LB		 1325#define BGP_ATTR_VNC 255
1326#endif
718e3744 1327
1328/* BGP update origin. */
1329#define BGP_ORIGIN_IGP 0
1330#define BGP_ORIGIN_EGP 1
1331#define BGP_ORIGIN_INCOMPLETE 2
1332
1333/* BGP notify message codes. */
1334#define BGP_NOTIFY_HEADER_ERR 1
1335#define BGP_NOTIFY_OPEN_ERR 2
1336#define BGP_NOTIFY_UPDATE_ERR 3
1337#define BGP_NOTIFY_HOLD_ERR 4
1338#define BGP_NOTIFY_FSM_ERR 5
1339#define BGP_NOTIFY_CEASE 6
1340#define BGP_NOTIFY_CAPABILITY_ERR 7
718e3744 1341
4b4e07d2
DT		 1342#define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0
1343
718e3744 1344/* BGP_NOTIFY_HEADER_ERR sub codes. */
1345#define BGP_NOTIFY_HEADER_NOT_SYNC 1
1346#define BGP_NOTIFY_HEADER_BAD_MESLEN 2
1347#define BGP_NOTIFY_HEADER_BAD_MESTYPE 3
718e3744 1348
1349/* BGP_NOTIFY_OPEN_ERR sub codes. */
14051b36 1350#define BGP_NOTIFY_OPEN_MALFORMED_ATTR 0
718e3744 1351#define BGP_NOTIFY_OPEN_UNSUP_VERSION 1
1352#define BGP_NOTIFY_OPEN_BAD_PEER_AS 2
1353#define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3
1354#define BGP_NOTIFY_OPEN_UNSUP_PARAM 4
1355#define BGP_NOTIFY_OPEN_AUTH_FAILURE 5
1356#define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6
1357#define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7
718e3744 1358
1359/* BGP_NOTIFY_UPDATE_ERR sub codes. */
1360#define BGP_NOTIFY_UPDATE_MAL_ATTR 1
1361#define BGP_NOTIFY_UPDATE_UNREC_ATTR 2
1362#define BGP_NOTIFY_UPDATE_MISS_ATTR 3
1363#define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4
1364#define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5
1365#define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6
1366#define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7
1367#define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8
1368#define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9
1369#define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10
1370#define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11
718e3744 1371
4b4e07d2 1372/* BGP_NOTIFY_CEASE sub codes (RFC 4486). */
718e3744 1373#define BGP_NOTIFY_CEASE_MAX_PREFIX 1
1374#define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2
1375#define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3
1376#define BGP_NOTIFY_CEASE_ADMIN_RESET 4
1377#define BGP_NOTIFY_CEASE_CONNECT_REJECT 5
1378#define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6
545acafb 1379#define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7
1380#define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8
718e3744 1381
1382/* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */
1383#define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1
1384#define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2
1385#define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3
718e3744 1386
1387/* BGP finite state machine status. */
1388#define Idle 1
1389#define Connect 2
1390#define Active 3
1391#define OpenSent 4
1392#define OpenConfirm 5
1393#define Established 6
ca058a30
PJ		 1394#define Clearing 7
1395#define Deleted 8
1396#define BGP_STATUS_MAX 9
718e3744 1397
1398/* BGP finite state machine events. */
1399#define BGP_Start 1
1400#define BGP_Stop 2
1401#define TCP_connection_open 3
1402#define TCP_connection_closed 4
1403#define TCP_connection_open_failed 5
1404#define TCP_fatal_error 6
1405#define ConnectRetry_timer_expired 7
1406#define Hold_Timer_expired 8
1407#define KeepAlive_timer_expired 9
1408#define Receive_OPEN_message 10
1409#define Receive_KEEPALIVE_message 11
1410#define Receive_UPDATE_message 12
1411#define Receive_NOTIFICATION_message 13
ca058a30
PJ		 1412#define Clearing_Completed 14
1413#define BGP_EVENTS_MAX 15
718e3744 1414
1415/* BGP timers default value. */
8efe88ea 1416/* note: the DFLT_ ones depend on compile-time "defaults" selection */
5ca5f1c8 1417#define BGP_INIT_START_TIMER 1
8efe88ea
DL		 1418#define BGP_DEFAULT_HOLDTIME DFLT_BGP_HOLDTIME
1419#define BGP_DEFAULT_KEEPALIVE DFLT_BGP_KEEPALIVE
12179ba3 1420#define BGP_DEFAULT_EBGP_ROUTEADV 0
1670355a 1421#define BGP_DEFAULT_IBGP_ROUTEADV 0
8efe88ea 1422#define BGP_DEFAULT_CONNECT_RETRY DFLT_BGP_TIMERS_CONNECT
718e3744 1423
1424/* BGP default local preference. */
1425#define BGP_DEFAULT_LOCAL_PREF 100
1426
7f323236
DW		 1427/* BGP local-preference to send when 'bgp graceful-shutdown'
1428 * is configured */
1429#define BGP_GSHUT_LOCAL_PREF 0
1430
3f9c7369
DS		 1431/* BGP default subgroup packet queue max . */
1432#define BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX 40
1433
538621f2 1434/* BGP graceful restart */
1435#define BGP_DEFAULT_RESTART_TIME 120
1436#define BGP_DEFAULT_STALEPATH_TIME 360
1437
718e3744 1438/* BGP uptime string length. */
1439#define BGP_UPTIME_LEN 25
1440
1441/* Default configuration settings for bgpd. */
1442#define BGP_VTY_PORT 2605
718e3744 1443#define BGP_DEFAULT_CONFIG "bgpd.conf"
1444
1445/* Check AS path loop when we send NLRI. */
1446/* #define BGP_SEND_ASPATH_CHECK */
1447
f14e6fdb
DS		 1448/* BGP Dynamic Neighbors feature */
1449#define BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT 100
1450#define BGP_DYNAMIC_NEIGHBORS_LIMIT_MIN 1
1451#define BGP_DYNAMIC_NEIGHBORS_LIMIT_MAX 5000
1452
718e3744 1453/* Flag for peer_clear_soft(). */
d62a17ae 1454enum bgp_clear_type {
1455 BGP_CLEAR_SOFT_NONE,
1456 BGP_CLEAR_SOFT_OUT,
1457 BGP_CLEAR_SOFT_IN,
1458 BGP_CLEAR_SOFT_BOTH,
1459 BGP_CLEAR_SOFT_IN_ORF_PREFIX
718e3744 1460};
1461
1462/* Macros. */
424ab01d 1463#define BGP_INPUT(P) ((P)->curr)
2d34fb80 1464#define BGP_INPUT_PNT(P) (stream_pnt(BGP_INPUT(P)))
d62a17ae 1465#define BGP_IS_VALID_STATE_FOR_NOTIF(S) \
1466 (((S) == OpenSent) || ((S) == OpenConfirm) || ((S) == Established))
718e3744 1467
718e3744 1468/* BGP error codes. */
1469#define BGP_SUCCESS 0
1470#define BGP_ERR_INVALID_VALUE -1
1471#define BGP_ERR_INVALID_FLAG -2
1472#define BGP_ERR_INVALID_AS -3
1473#define BGP_ERR_INVALID_BGP -4
1474#define BGP_ERR_PEER_GROUP_MEMBER -5
c8560b44
DW		 1475#define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -7
1476#define BGP_ERR_PEER_GROUP_CANT_CHANGE -8
1477#define BGP_ERR_PEER_GROUP_MISMATCH -9
1478#define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -10
c8560b44
DW		 1479#define BGP_ERR_AS_MISMATCH -12
1480#define BGP_ERR_PEER_FLAG_CONFLICT -13
1481#define BGP_ERR_PEER_GROUP_SHUTDOWN -14
1482#define BGP_ERR_PEER_FILTER_CONFLICT -15
1483#define BGP_ERR_NOT_INTERNAL_PEER -16
1484#define BGP_ERR_REMOVE_PRIVATE_AS -17
1485#define BGP_ERR_AF_UNCONFIGURED -18
1486#define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -19
1487#define BGP_ERR_INSTANCE_MISMATCH -20
1488#define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -21
1489#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -22
1490#define BGP_ERR_TCPSIG_FAILED -23
1491#define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -24
1492#define BGP_ERR_NO_IBGP_WITH_TTLHACK -25
1493#define BGP_ERR_NO_INTERFACE_CONFIG -26
1494#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS -27
1495#define BGP_ERR_AS_OVERRIDE -28
1496#define BGP_ERR_INVALID_DYNAMIC_NEIGHBORS_LIMIT -29
1497#define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_EXISTS -30
1498#define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND -31
1499#define BGP_ERR_INVALID_FOR_DYNAMIC_PEER -32
1500#define BGP_ERR_MAX -33
63fa10b5 1501#define BGP_ERR_INVALID_FOR_DIRECT_PEER -34
9bedbb1e 1502#define BGP_ERR_PEER_SAFI_CONFLICT -35
718e3744 1503
3f9c7369
DS		 1504/*
1505 * Enumeration of different policy kinds a peer can be configured with.
1506 */
d62a17ae 1507typedef enum {
1508 BGP_POLICY_ROUTE_MAP,
1509 BGP_POLICY_FILTER_LIST,
1510 BGP_POLICY_PREFIX_LIST,
1511 BGP_POLICY_DISTRIBUTE_LIST,
3f9c7369
DS		 1512} bgp_policy_type_e;
1513
dcc68b5e
MS		 1514/* peer_flag_change_type. */
1515enum peer_change_type {
1516 peer_change_none,
1517 peer_change_reset,
1518 peer_change_reset_in,
1519 peer_change_reset_out,
1520};
1521
718e3744 1522extern struct bgp_master *bm;
37fe7731 1523extern unsigned int multipath_num;
718e3744 1524
718e3744 1525/* Prototypes. */
d62a17ae 1526extern void bgp_terminate(void);
1527extern void bgp_reset(void);
1528extern time_t bgp_clock(void);
1529extern void bgp_zclient_reset(void);
d62a17ae 1530extern struct bgp *bgp_get_default(void);
1531extern struct bgp *bgp_lookup(as_t, const char *);
1532extern struct bgp *bgp_lookup_by_name(const char *);
1533extern struct bgp *bgp_lookup_by_vrf_id(vrf_id_t);
e2f3a930
T		 1534extern struct bgp *bgp_get_evpn(void);
1535extern void bgp_set_evpn(struct bgp *bgp);
d62a17ae 1536extern struct peer *peer_lookup(struct bgp *, union sockunion *);
1537extern struct peer *peer_lookup_by_conf_if(struct bgp *, const char *);
04b6bdc0 1538extern struct peer *peer_lookup_by_hostname(struct bgp *, const char *);
d62a17ae 1539extern void bgp_peer_conf_if_to_su_update(struct peer *);
ffd0c037 1540extern int peer_group_listen_range_del(struct peer_group *, struct prefix *);
d62a17ae 1541extern struct peer_group *peer_group_lookup(struct bgp *, const char *);
1542extern struct peer_group *peer_group_get(struct bgp *, const char *);
1543extern struct peer *peer_create_bind_dynamic_neighbor(struct bgp *,
1544 union sockunion *,
1545 struct peer_group *);
1546extern struct prefix *
1547peer_group_lookup_dynamic_neighbor_range(struct peer_group *, struct prefix *);
1548extern struct peer_group *peer_group_lookup_dynamic_neighbor(struct bgp *,
1549 struct prefix *,
1550 struct prefix **);
1551extern struct peer *peer_lookup_dynamic_neighbor(struct bgp *,
1552 union sockunion *);
28066f4b
DS		 1553
1554/*
1555 * Peers are incredibly easy to memory leak
1556 * due to the various ways that they are actually used
1557 * Provide some functionality to debug locks and unlocks
1558 */
1559extern struct peer *peer_lock_with_caller(const char *, struct peer *);
1560extern struct peer *peer_unlock_with_caller(const char *, struct peer *);
1561#define peer_unlock(A) peer_unlock_with_caller(__FUNCTION__, (A))
1562#define peer_lock(B) peer_lock_with_caller(__FUNCTION__, (B))
1563
d62a17ae 1564extern bgp_peer_sort_t peer_sort(struct peer *peer);
1565extern int peer_active(struct peer *);
1566extern int peer_active_nego(struct peer *);
1567extern void bgp_recalculate_all_bestpaths(struct bgp *bgp);
a80beece 1568extern struct peer *peer_create(union sockunion *, const char *, struct bgp *,
d62a17ae 1569 as_t, as_t, int, afi_t, safi_t,
1570 struct peer_group *);
1571extern struct peer *peer_create_accept(struct bgp *);
1572extern void peer_xfer_config(struct peer *dst, struct peer *src);
94d4c685
DS		 1573extern char *peer_uptime(time_t uptime2, char *buf, size_t len, bool use_json,
1574 json_object *json);
856ca177 1575
d62a17ae 1576extern int bgp_config_write(struct vty *);
6b0655a2 1577
d62a17ae 1578extern void bgp_master_init(struct thread_master *master);
718e3744 1579
f533be73 1580extern void bgp_init(unsigned short instance);
419dfe6a 1581extern void bgp_pthreads_run(void);
2d4ee774 1582extern void bgp_pthreads_finish(void);
d62a17ae 1583extern void bgp_route_map_init(void);
1584extern void bgp_session_reset(struct peer *);
718e3744 1585
d62a17ae 1586extern int bgp_option_set(int);
1587extern int bgp_option_unset(int);
1588extern int bgp_option_check(int);
718e3744 1589
d62a17ae 1590extern int bgp_get(struct bgp **, as_t *, const char *, enum bgp_instance_type);
1591extern void bgp_instance_up(struct bgp *);
1592extern void bgp_instance_down(struct bgp *);
1593extern int bgp_delete(struct bgp *);
718e3744 1594
e5619c28
PG		 1595extern int bgp_handle_socket(struct bgp *bgp, struct vrf *vrf,
1596 vrf_id_t old_vrf_id, bool create);
1597
d62a17ae 1598extern int bgp_flag_set(struct bgp *, int);
1599extern int bgp_flag_unset(struct bgp *, int);
1600extern int bgp_flag_check(struct bgp *, int);
718e3744 1601
d62a17ae 1602extern void bgp_router_id_zebra_bump(vrf_id_t, const struct prefix *);
1603extern int bgp_router_id_static_set(struct bgp *, struct in_addr);
718e3744 1604
d62a17ae 1605extern int bgp_cluster_id_set(struct bgp *, struct in_addr *);
1606extern int bgp_cluster_id_unset(struct bgp *);
718e3744 1607
d62a17ae 1608extern int bgp_confederation_id_set(struct bgp *, as_t);
1609extern int bgp_confederation_id_unset(struct bgp *);
1610extern int bgp_confederation_peers_check(struct bgp *, as_t);
718e3744 1611
d62a17ae 1612extern int bgp_confederation_peers_add(struct bgp *, as_t);
1613extern int bgp_confederation_peers_remove(struct bgp *, as_t);
718e3744 1614
d7c0a89a 1615extern int bgp_timers_set(struct bgp *, uint32_t keepalive, uint32_t holdtime);
d62a17ae 1616extern int bgp_timers_unset(struct bgp *);
718e3744 1617
d7c0a89a 1618extern int bgp_default_local_preference_set(struct bgp *, uint32_t);
d62a17ae 1619extern int bgp_default_local_preference_unset(struct bgp *);
718e3744 1620
d7c0a89a 1621extern int bgp_default_subgroup_pkt_queue_max_set(struct bgp *bgp, uint32_t);
d62a17ae 1622extern int bgp_default_subgroup_pkt_queue_max_unset(struct bgp *bgp);
3f9c7369 1623
d62a17ae 1624extern int bgp_listen_limit_set(struct bgp *, int);
1625extern int bgp_listen_limit_unset(struct bgp *);
f14e6fdb 1626
d62a17ae 1627extern int bgp_update_delay_active(struct bgp *);
1628extern int bgp_update_delay_configured(struct bgp *);
318cac96 1629extern int bgp_afi_safi_peer_exists(struct bgp *bgp, afi_t afi, safi_t safi);
d62a17ae 1630extern void peer_as_change(struct peer *, as_t, int);
1631extern int peer_remote_as(struct bgp *, union sockunion *, const char *, as_t *,
1632 int, afi_t, safi_t);
1633extern int peer_group_remote_as(struct bgp *, const char *, as_t *, int);
1634extern int peer_delete(struct peer *peer);
1635extern int peer_group_delete(struct peer_group *);
1636extern int peer_group_remote_as_delete(struct peer_group *);
f14e6fdb 1637extern int peer_group_listen_range_add(struct peer_group *, struct prefix *);
718e3744 1638
d62a17ae 1639extern int peer_activate(struct peer *, afi_t, safi_t);
1640extern int peer_deactivate(struct peer *, afi_t, safi_t);
1641extern int peer_afc_set(struct peer *, afi_t, safi_t, int);
718e3744 1642
d62a17ae 1643extern int peer_group_bind(struct bgp *, union sockunion *, struct peer *,
1644 struct peer_group *, as_t *);
718e3744 1645
d7c0a89a
QY		 1646extern int peer_flag_set(struct peer *, uint32_t);
1647extern int peer_flag_unset(struct peer *, uint32_t);
9fb964de 1648extern void peer_flag_inherit(struct peer *peer, uint32_t flag);
718e3744 1649
d7c0a89a
QY		 1650extern int peer_af_flag_set(struct peer *, afi_t, safi_t, uint32_t);
1651extern int peer_af_flag_unset(struct peer *, afi_t, safi_t, uint32_t);
1652extern int peer_af_flag_check(struct peer *, afi_t, safi_t, uint32_t);
cf9ac8bf
PM		 1653extern void peer_af_flag_inherit(struct peer *peer, afi_t afi, safi_t safi,
1654 uint32_t flag);
dcc68b5e
MS		 1655extern void peer_change_action(struct peer *peer, afi_t afi, safi_t safi,
1656 enum peer_change_type type);
718e3744 1657
d62a17ae 1658extern int peer_ebgp_multihop_set(struct peer *, int);
1659extern int peer_ebgp_multihop_unset(struct peer *);
1660extern int is_ebgp_multihop_configured(struct peer *peer);
718e3744 1661
d62a17ae 1662extern int peer_description_set(struct peer *, const char *);
1663extern int peer_description_unset(struct peer *);
718e3744 1664
d62a17ae 1665extern int peer_update_source_if_set(struct peer *, const char *);
1666extern int peer_update_source_addr_set(struct peer *, const union sockunion *);
1667extern int peer_update_source_unset(struct peer *);
718e3744 1668
1de27621
DA		 1669extern int peer_default_originate_set(struct peer *peer, afi_t afi, safi_t safi,
1670 const char *rmap,
1671 struct route_map *route_map);
d62a17ae 1672extern int peer_default_originate_unset(struct peer *, afi_t, safi_t);
718e3744 1673
d7c0a89a 1674extern int peer_port_set(struct peer *, uint16_t);
d62a17ae 1675extern int peer_port_unset(struct peer *);
718e3744 1676
d7c0a89a 1677extern int peer_weight_set(struct peer *, afi_t, safi_t, uint16_t);
d62a17ae 1678extern int peer_weight_unset(struct peer *, afi_t, safi_t);
718e3744 1679
d7c0a89a
QY		 1680extern int peer_timers_set(struct peer *, uint32_t keepalive,
1681 uint32_t holdtime);
d62a17ae 1682extern int peer_timers_unset(struct peer *);
718e3744 1683
d7c0a89a 1684extern int peer_timers_connect_set(struct peer *, uint32_t);
d62a17ae 1685extern int peer_timers_connect_unset(struct peer *);
718e3744 1686
d7c0a89a 1687extern int peer_advertise_interval_set(struct peer *, uint32_t);
d62a17ae 1688extern int peer_advertise_interval_unset(struct peer *);
718e3744 1689
d62a17ae 1690extern void peer_interface_set(struct peer *, const char *);
1691extern void peer_interface_unset(struct peer *);
718e3744 1692
d62a17ae 1693extern int peer_distribute_set(struct peer *, afi_t, safi_t, int, const char *);
1694extern int peer_distribute_unset(struct peer *, afi_t, safi_t, int);
718e3744 1695
d62a17ae 1696extern int peer_allowas_in_set(struct peer *, afi_t, safi_t, int, int);
1697extern int peer_allowas_in_unset(struct peer *, afi_t, safi_t);
718e3744 1698
d62a17ae 1699extern int peer_local_as_set(struct peer *, as_t, int, int);
1700extern int peer_local_as_unset(struct peer *);
718e3744 1701
d62a17ae 1702extern int peer_prefix_list_set(struct peer *, afi_t, safi_t, int,
1703 const char *);
1704extern int peer_prefix_list_unset(struct peer *, afi_t, safi_t, int);
718e3744 1705
d62a17ae 1706extern int peer_aslist_set(struct peer *, afi_t, safi_t, int, const char *);
1707extern int peer_aslist_unset(struct peer *, afi_t, safi_t, int);
718e3744 1708
1de27621
DA		 1709extern int peer_route_map_set(struct peer *peer, afi_t afi, safi_t safi, int,
1710 const char *name, struct route_map *route_map);
d62a17ae 1711extern int peer_route_map_unset(struct peer *, afi_t, safi_t, int);
718e3744 1712
1de27621
DA		 1713extern int peer_unsuppress_map_set(struct peer *peer, afi_t afi, safi_t safi,
1714 const char *name,
1715 struct route_map *route_map);
0df7c91f 1716
d62a17ae 1717extern int peer_password_set(struct peer *, const char *);
1718extern int peer_password_unset(struct peer *);
0df7c91f 1719
d62a17ae 1720extern int peer_unsuppress_map_unset(struct peer *, afi_t, safi_t);
718e3744 1721
d7c0a89a
QY		 1722extern int peer_maximum_prefix_set(struct peer *, afi_t, safi_t, uint32_t,
1723 uint8_t, int, uint16_t);
d62a17ae 1724extern int peer_maximum_prefix_unset(struct peer *, afi_t, safi_t);
718e3744 1725
d62a17ae 1726extern int peer_clear(struct peer *, struct listnode **);
1727extern int peer_clear_soft(struct peer *, afi_t, safi_t, enum bgp_clear_type);
93406d87 1728
d62a17ae 1729extern int peer_ttl_security_hops_set(struct peer *, int);
1730extern int peer_ttl_security_hops_unset(struct peer *);
fa411a21 1731
d62a17ae 1732extern int peer_tx_shutdown_message_set(struct peer *, const char *msg);
1733extern int peer_tx_shutdown_message_unset(struct peer *);
73d70fa6 1734
d62a17ae 1735extern int bgp_route_map_update_timer(struct thread *thread);
518f0eb1 1736extern void bgp_route_map_terminate(void);
16286195 1737
d62a17ae 1738extern int peer_cmp(struct peer *p1, struct peer *p2);
3f9c7369 1739
5c525538 1740extern int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi, iana_safi_t pkt_safi,
d62a17ae 1741 afi_t *afi, safi_t *safi);
1742extern int bgp_map_afi_safi_int2iana(afi_t afi, safi_t safi,
a4d82a8a
PZ		 1743 iana_afi_t *pkt_afi,
1744 iana_safi_t *pkt_safi);
9cabb64b 1745
d62a17ae 1746extern struct peer_af *peer_af_create(struct peer *, afi_t, safi_t);
1747extern struct peer_af *peer_af_find(struct peer *, afi_t, safi_t);
1748extern int peer_af_delete(struct peer *, afi_t, safi_t);
3f9c7369 1749
ffd0c037 1750extern void bgp_close(void);
92375c91
JB		 1751extern void bgp_free(struct bgp *);
1752
1753static inline struct bgp *bgp_lock(struct bgp *bgp)
1754{
1755 bgp->lock++;
1756 return bgp;
1757}
1758
1759static inline void bgp_unlock(struct bgp *bgp)
1760{
1761 assert(bgp->lock > 0);
1762 if (--bgp->lock == 0)
1763 bgp_free(bgp);
1764}
ffd0c037 1765
d62a17ae 1766static inline int afindex(afi_t afi, safi_t safi)
3f9c7369 1767{
d62a17ae 1768 switch (afi) {
1769 case AFI_IP:
1770 switch (safi) {
1771 case SAFI_UNICAST:
1772 return BGP_AF_IPV4_UNICAST;
1773 break;
1774 case SAFI_MULTICAST:
1775 return BGP_AF_IPV4_MULTICAST;
1776 break;
1777 case SAFI_LABELED_UNICAST:
1778 return BGP_AF_IPV4_LBL_UNICAST;
1779 break;
1780 case SAFI_MPLS_VPN:
1781 return BGP_AF_IPV4_VPN;
1782 break;
1783 case SAFI_ENCAP:
1784 return BGP_AF_IPV4_ENCAP;
1785 break;
7c40bf39 1786 case SAFI_FLOWSPEC:
1787 return BGP_AF_IPV4_FLOWSPEC;
d62a17ae 1788 default:
1789 return BGP_AF_MAX;
1790 break;
1791 }
1792 break;
1793 case AFI_IP6:
1794 switch (safi) {
1795 case SAFI_UNICAST:
1796 return BGP_AF_IPV6_UNICAST;
1797 break;
1798 case SAFI_MULTICAST:
1799 return BGP_AF_IPV6_MULTICAST;
1800 break;
1801 case SAFI_LABELED_UNICAST:
1802 return BGP_AF_IPV6_LBL_UNICAST;
1803 break;
1804 case SAFI_MPLS_VPN:
1805 return BGP_AF_IPV6_VPN;
1806 break;
1807 case SAFI_ENCAP:
1808 return BGP_AF_IPV6_ENCAP;
1809 break;
7c40bf39 1810 case SAFI_FLOWSPEC:
1811 return BGP_AF_IPV6_FLOWSPEC;
d62a17ae 1812 default:
1813 return BGP_AF_MAX;
1814 break;
1815 }
1816 break;
1817 case AFI_L2VPN:
1818 switch (safi) {
1819 case SAFI_EVPN:
1820 return BGP_AF_L2VPN_EVPN;
1821 break;
1822 default:
1823 return BGP_AF_MAX;
1824 break;
1825 }
3f9c7369 1826 default:
d62a17ae 1827 return BGP_AF_MAX;
1828 break;
3f9c7369 1829 }
3f9c7369
DS		 1830}
1831
c8560b44 1832/* If the peer is not a peer-group but is bound to a peer-group return 1 */
d62a17ae 1833static inline int peer_group_active(struct peer *peer)
3f9c7369 1834{
d62a17ae 1835 if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) && peer->group)
1836 return 1;
1837 return 0;
3f9c7369
DS		 1838}
1839
1840/* If peer is negotiated at least one address family return 1. */
d62a17ae 1841static inline int peer_afi_active_nego(const struct peer *peer, afi_t afi)
3f9c7369 1842{
d62a17ae 1843 if (peer->afc_nego[afi][SAFI_UNICAST]
1844 || peer->afc_nego[afi][SAFI_MULTICAST]
1845 || peer->afc_nego[afi][SAFI_LABELED_UNICAST]
1846 || peer->afc_nego[afi][SAFI_MPLS_VPN]
1847 || peer->afc_nego[afi][SAFI_ENCAP]
7c40bf39 1848 || peer->afc_nego[afi][SAFI_FLOWSPEC]
d62a17ae 1849 || peer->afc_nego[afi][SAFI_EVPN])
1850 return 1;
1851 return 0;
3f9c7369
DS		 1852}
1853
f14e6fdb 1854/* If at least one address family activated for group, return 1. */
d62a17ae 1855static inline int peer_group_af_configured(struct peer_group *group)
f14e6fdb 1856{
d62a17ae 1857 struct peer *peer = group->conf;
1858
1859 if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST]
1860 || peer->afc[AFI_IP][SAFI_LABELED_UNICAST]
7c40bf39 1861 || peer->afc[AFI_IP][SAFI_FLOWSPEC]
d62a17ae 1862 || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP]
1863 || peer->afc[AFI_IP6][SAFI_UNICAST]
1864 || peer->afc[AFI_IP6][SAFI_MULTICAST]
1865 || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST]
1866 || peer->afc[AFI_IP6][SAFI_MPLS_VPN]
ba0fcaf6 1867 || peer->afc[AFI_IP6][SAFI_ENCAP]
7c40bf39 1868 || peer->afc[AFI_IP6][SAFI_FLOWSPEC]
ba0fcaf6 1869 || peer->afc[AFI_L2VPN][SAFI_EVPN])
d62a17ae 1870 return 1;
1871 return 0;
f14e6fdb
DS		 1872}
1873
d62a17ae 1874static inline char *timestamp_string(time_t ts)
3f9c7369 1875{
d62a17ae 1876 time_t tbuf;
1877 tbuf = time(NULL) - (bgp_clock() - ts);
1878 return ctime(&tbuf);
3f9c7369
DS		 1879}
1880
d62a17ae 1881static inline int peer_established(struct peer *peer)
3f9c7369 1882{
d62a17ae 1883 if (peer->status == Established)
1884 return 1;
1885 return 0;
3f9c7369
DS		 1886}
1887
d62a17ae 1888static inline int peer_dynamic_neighbor(struct peer *peer)
f14e6fdb 1889{
d62a17ae 1890 return (CHECK_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR)) ? 1 : 0;
f14e6fdb
DS		 1891}
1892
d62a17ae 1893static inline int peer_cap_enhe(struct peer *peer, afi_t afi, safi_t safi)
8a92a8a0 1894{
d62a17ae 1895 return (CHECK_FLAG(peer->af_cap[afi][safi], PEER_CAP_ENHE_AF_NEGO));
8a92a8a0
DS		 1896}
1897
d1be1f08 1898/* Lookup VRF for BGP instance based on its type. */
d62a17ae 1899static inline struct vrf *bgp_vrf_lookup_by_instance_type(struct bgp *bgp)
d1be1f08 1900{
d62a17ae 1901 struct vrf *vrf;
d1be1f08 1902
d62a17ae 1903 if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)
1904 vrf = vrf_lookup_by_id(VRF_DEFAULT);
1905 else if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF)
1906 vrf = vrf_lookup_by_name(bgp->name);
1907 else
1908 vrf = NULL;
d1be1f08 1909
d62a17ae 1910 return vrf;
d1be1f08 1911}
1912
1913/* Link BGP instance to VRF. */
d62a17ae 1914static inline void bgp_vrf_link(struct bgp *bgp, struct vrf *vrf)
d1be1f08 1915{
d62a17ae 1916 bgp->vrf_id = vrf->vrf_id;
92375c91
JB		 1917 if (vrf->info != (void *)bgp)
1918 vrf->info = (void *)bgp_lock(bgp);
d1be1f08 1919}
1920
1921/* Unlink BGP instance from VRF. */
d62a17ae 1922static inline void bgp_vrf_unlink(struct bgp *bgp, struct vrf *vrf)
d1be1f08 1923{
d62a17ae 1924 if (vrf->info == (void *)bgp) {
1925 vrf->info = NULL;
1926 bgp_unlock(bgp);
1927 }
1928 bgp->vrf_id = VRF_UNKNOWN;
d1be1f08 1929}
1930
401d56cc 1931extern void bgp_unset_redist_vrf_bitmaps(struct bgp *, vrf_id_t);
65efcfce
LB		 1932
1933/* For benefit of rfapi */
d62a17ae 1934extern struct peer *peer_new(struct bgp *bgp);
dcc1615e
DD		 1935
1936extern struct peer *peer_lookup_in_view(struct vty *vty, struct bgp *bgp,
1937 const char *ip_str, bool use_json);
1938
00d252cb 1939#endif /* _QUAGGA_BGPD_H */
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