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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" |
856ca177 | 25 | #include "lib/json.h" |
6aeb9e78 | 26 | #include "vrf.h" |
94c60424 | 27 | #include "vty.h" |
6aeb9e78 | 28 | |
718e3744 | 29 | /* For union sockunion. */ |
3f9c7369 | 30 | #include "queue.h" |
718e3744 | 31 | #include "sockunion.h" |
518f0eb1 | 32 | #include "routemap.h" |
ffd0c037 | 33 | #include "linklist.h" |
8efe88ea | 34 | #include "defaults.h" |
4a1ab8e4 | 35 | #include "bgp_memory.h" |
14c1a7bf | 36 | #include "bitfield.h" |
718e3744 | 37 | |
04b6bdc0 | 38 | #define BGP_MAX_HOSTNAME 64 /* Linux max, is larger than most other sys */ |
40520c36 | 39 | #define BGP_PEER_MAX_HASH_SIZE 16384 |
04b6bdc0 | 40 | |
5c81b96a | 41 | /* Default interval for IPv6 RAs when triggered by BGP unnumbered neighbor. */ |
42 | #define BGP_UNNUM_DEFAULT_RA_INTERVAL 10 | |
43 | ||
3f9c7369 DS |
44 | struct update_subgroup; |
45 | struct bpacket; | |
46 | ||
0299c004 DS |
47 | /* |
48 | * Allow the neighbor XXXX remote-as to take internal or external | |
d62a17ae | 49 | * AS_SPECIFIED is zero to auto-inherit original non-feature/enhancement |
50 | * behavior | |
0299c004 DS |
51 | * in the system. |
52 | */ | |
d62a17ae | 53 | enum { AS_UNSPECIFIED = 0, |
54 | AS_SPECIFIED, | |
55 | AS_INTERNAL, | |
56 | AS_EXTERNAL, | |
0299c004 DS |
57 | }; |
58 | ||
718e3744 | 59 | /* Typedef BGP specific types. */ |
0b2aa3a0 PJ |
60 | typedef u_int32_t as_t; |
61 | typedef u_int16_t as16_t; /* we may still encounter 16 Bit asnums */ | |
718e3744 | 62 | typedef u_int16_t bgp_size_t; |
63 | ||
d62a17ae | 64 | #define max(a, b) \ |
65 | ({ \ | |
66 | __typeof__(a) _a = (a); \ | |
67 | __typeof__(b) _b = (b); \ | |
68 | _a > _b ? _a : _b; \ | |
69 | }) | |
70 | ||
71 | enum bgp_af_index { | |
72 | BGP_AF_START, | |
73 | BGP_AF_IPV4_UNICAST = BGP_AF_START, | |
74 | BGP_AF_IPV4_MULTICAST, | |
75 | BGP_AF_IPV4_VPN, | |
76 | BGP_AF_IPV6_UNICAST, | |
77 | BGP_AF_IPV6_MULTICAST, | |
78 | BGP_AF_IPV6_VPN, | |
79 | BGP_AF_IPV4_ENCAP, | |
80 | BGP_AF_IPV6_ENCAP, | |
81 | BGP_AF_L2VPN_EVPN, | |
82 | BGP_AF_IPV4_LBL_UNICAST, | |
83 | BGP_AF_IPV6_LBL_UNICAST, | |
84 | BGP_AF_MAX | |
3f9c7369 DS |
85 | }; |
86 | ||
d62a17ae | 87 | #define AF_FOREACH(af) for ((af) = BGP_AF_START; (af) < BGP_AF_MAX; (af)++) |
3f9c7369 | 88 | |
d62a17ae | 89 | #define FOREACH_AFI_SAFI(afi, safi) \ |
90 | for (afi = AFI_IP; afi < AFI_MAX; afi++) \ | |
91 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
3f9c7369 | 92 | |
718e3744 | 93 | /* BGP master for system wide configurations and variables. */ |
d62a17ae | 94 | struct bgp_master { |
95 | /* BGP instance list. */ | |
96 | struct list *bgp; | |
97 | ||
98 | /* BGP thread master. */ | |
99 | struct thread_master *master; | |
718e3744 | 100 | |
d62a17ae | 101 | /* work queues */ |
102 | struct work_queue *process_main_queue; | |
87d4a781 | 103 | |
d62a17ae | 104 | /* Listening sockets */ |
105 | struct list *listen_sockets; | |
718e3744 | 106 | |
d62a17ae | 107 | /* BGP port number. */ |
108 | u_int16_t port; | |
3a02d1f7 | 109 | |
d62a17ae | 110 | /* Listener address */ |
111 | char *address; | |
718e3744 | 112 | |
d62a17ae | 113 | /* BGP start time. */ |
114 | time_t start_time; | |
115 | ||
116 | /* Various BGP global configuration. */ | |
117 | u_char options; | |
718e3744 | 118 | #define BGP_OPT_NO_FIB (1 << 0) |
119 | #define BGP_OPT_MULTIPLE_INSTANCE (1 << 1) | |
120 | #define BGP_OPT_CONFIG_CISCO (1 << 2) | |
cccbc015 | 121 | #define BGP_OPT_NO_LISTEN (1 << 3) |
3f9c7369 | 122 | |
d62a17ae | 123 | uint64_t updgrp_idspace; |
124 | uint64_t subgrp_idspace; | |
5fe9f963 | 125 | |
d62a17ae | 126 | /* timer to dampen route map changes */ |
127 | struct thread *t_rmap_update; /* Handle route map updates */ | |
128 | u_int32_t rmap_update_timer; /* Route map update timer */ | |
129 | /* $FRR indent$ */ | |
130 | /* clang-format off */ | |
5fe9f963 | 131 | #define RMAP_DEFAULT_UPDATE_TIMER 5 /* disabled by default */ |
19df7279 | 132 | |
d62a17ae | 133 | QOBJ_FIELDS |
718e3744 | 134 | }; |
19df7279 | 135 | DECLARE_QOBJ_TYPE(bgp_master) |
718e3744 | 136 | |
73ac8160 | 137 | /* BGP route-map structure. */ |
d62a17ae | 138 | struct bgp_rmap { |
139 | char *name; | |
140 | struct route_map *map; | |
73ac8160 DS |
141 | }; |
142 | ||
d62a17ae | 143 | struct bgp_redist { |
144 | u_short instance; | |
7c8ff89e | 145 | |
d62a17ae | 146 | /* BGP redistribute metric configuration. */ |
147 | u_char redist_metric_flag; | |
148 | u_int32_t redist_metric; | |
7c8ff89e | 149 | |
d62a17ae | 150 | /* BGP redistribute route-map. */ |
151 | struct bgp_rmap rmap; | |
7c8ff89e DS |
152 | }; |
153 | ||
ad4cbda1 | 154 | /* |
155 | * Type of 'struct bgp'. | |
156 | * - Default: The default instance | |
157 | * - VRF: A specific (non-default) VRF | |
158 | * - View: An instance used for route exchange | |
159 | * The "default" instance is treated separately to simplify the code. Note | |
160 | * that if deployed in a Multi-VRF environment, it may not exist. | |
161 | */ | |
d62a17ae | 162 | enum bgp_instance_type { |
163 | BGP_INSTANCE_TYPE_DEFAULT, | |
164 | BGP_INSTANCE_TYPE_VRF, | |
165 | BGP_INSTANCE_TYPE_VIEW | |
ad4cbda1 | 166 | }; |
167 | ||
718e3744 | 168 | /* BGP instance structure. */ |
d62a17ae | 169 | struct bgp { |
170 | /* AS number of this BGP instance. */ | |
171 | as_t as; | |
172 | ||
173 | /* Name of this BGP instance. */ | |
174 | char *name; | |
175 | ||
176 | /* Type of instance and VRF id. */ | |
177 | enum bgp_instance_type inst_type; | |
178 | vrf_id_t vrf_id; | |
179 | ||
180 | /* Reference count to allow peer_delete to finish after bgp_delete */ | |
181 | int lock; | |
182 | ||
183 | /* Self peer. */ | |
184 | struct peer *peer_self; | |
185 | ||
186 | /* BGP peer. */ | |
187 | struct list *peer; | |
188 | struct hash *peerhash; | |
189 | ||
190 | /* BGP peer group. */ | |
191 | struct list *group; | |
192 | ||
193 | /* The maximum number of BGP dynamic neighbors that can be created */ | |
194 | int dynamic_neighbors_limit; | |
195 | ||
196 | /* The current number of BGP dynamic neighbors */ | |
197 | int dynamic_neighbors_count; | |
198 | ||
199 | struct hash *update_groups[BGP_AF_MAX]; | |
200 | ||
201 | /* | |
202 | * Global statistics for update groups. | |
203 | */ | |
204 | struct { | |
205 | u_int32_t join_events; | |
206 | u_int32_t prune_events; | |
207 | u_int32_t merge_events; | |
208 | u_int32_t split_events; | |
209 | u_int32_t updgrp_switch_events; | |
210 | u_int32_t peer_refreshes_combined; | |
211 | u_int32_t adj_count; | |
212 | u_int32_t merge_checks_triggered; | |
213 | ||
214 | u_int32_t updgrps_created; | |
215 | u_int32_t updgrps_deleted; | |
216 | u_int32_t subgrps_created; | |
217 | u_int32_t subgrps_deleted; | |
218 | } update_group_stats; | |
219 | ||
220 | /* BGP configuration. */ | |
221 | u_int16_t config; | |
c2d58d6d | 222 | #define BGP_CONFIG_CLUSTER_ID (1 << 0) |
223 | #define BGP_CONFIG_CONFEDERATION (1 << 1) | |
718e3744 | 224 | |
d62a17ae | 225 | /* BGP router identifier. */ |
226 | struct in_addr router_id; | |
227 | struct in_addr router_id_static; | |
228 | struct in_addr router_id_zebra; | |
718e3744 | 229 | |
d62a17ae | 230 | /* BGP route reflector cluster ID. */ |
231 | struct in_addr cluster_id; | |
718e3744 | 232 | |
d62a17ae | 233 | /* BGP confederation information. */ |
234 | as_t confed_id; | |
235 | as_t *confed_peers; | |
236 | int confed_peers_cnt; | |
718e3744 | 237 | |
d62a17ae | 238 | struct thread |
239 | *t_startup; /* start-up timer on only once at the beginning */ | |
abc920f8 | 240 | |
d62a17ae | 241 | u_int32_t v_maxmed_onstartup; /* Duration of max-med on start-up */ |
242 | /* $FRR indent$ */ | |
243 | /* clang-format off */ | |
abc920f8 | 244 | #define BGP_MAXMED_ONSTARTUP_UNCONFIGURED 0 /* 0 means off, its the default */ |
d62a17ae | 245 | u_int32_t maxmed_onstartup_value; /* Max-med value when active on |
246 | start-up */ | |
247 | struct thread | |
248 | *t_maxmed_onstartup; /* non-null when max-med onstartup is on */ | |
249 | u_char maxmed_onstartup_over; /* Flag to make it effective only once */ | |
250 | ||
251 | u_char v_maxmed_admin; /* 1/0 if max-med administrative is on/off */ | |
252 | /* $FRR indent$ */ | |
253 | /* clang-format off */ | |
abc920f8 | 254 | #define BGP_MAXMED_ADMIN_UNCONFIGURED 0 /* Off by default */ |
9d303b37 DL |
255 | u_int32_t |
256 | maxmed_admin_value; /* Max-med value when administrative in on | |
d62a17ae | 257 | */ |
abc920f8 DS |
258 | #define BGP_MAXMED_VALUE_DEFAULT 4294967294 /* Maximum by default */ |
259 | ||
9d303b37 DL |
260 | u_char maxmed_active; /* 1/0 if max-med is active or not */ |
261 | u_int32_t maxmed_value; /* Max-med value when its active */ | |
d62a17ae | 262 | |
263 | /* BGP update delay on startup */ | |
264 | struct thread *t_update_delay; | |
265 | struct thread *t_establish_wait; | |
266 | u_char update_delay_over; | |
267 | u_char main_zebra_update_hold; | |
268 | u_char main_peers_update_hold; | |
269 | u_int16_t v_update_delay; | |
270 | u_int16_t v_establish_wait; | |
271 | char update_delay_begin_time[64]; | |
272 | char update_delay_end_time[64]; | |
273 | char update_delay_zebra_resume_time[64]; | |
274 | char update_delay_peers_resume_time[64]; | |
275 | u_int32_t established; | |
276 | u_int32_t restarted_peers; | |
277 | u_int32_t implicit_eors; | |
278 | u_int32_t explicit_eors; | |
f188f2c4 DS |
279 | #define BGP_UPDATE_DELAY_DEF 0 |
280 | #define BGP_UPDATE_DELAY_MIN 0 | |
281 | #define BGP_UPDATE_DELAY_MAX 3600 | |
282 | ||
d62a17ae | 283 | /* BGP flags. */ |
284 | u_int32_t flags; | |
718e3744 | 285 | #define BGP_FLAG_ALWAYS_COMPARE_MED (1 << 0) |
286 | #define BGP_FLAG_DETERMINISTIC_MED (1 << 1) | |
287 | #define BGP_FLAG_MED_MISSING_AS_WORST (1 << 2) | |
288 | #define BGP_FLAG_MED_CONFED (1 << 3) | |
289 | #define BGP_FLAG_NO_DEFAULT_IPV4 (1 << 4) | |
290 | #define BGP_FLAG_NO_CLIENT_TO_CLIENT (1 << 5) | |
291 | #define BGP_FLAG_ENFORCE_FIRST_AS (1 << 6) | |
292 | #define BGP_FLAG_COMPARE_ROUTER_ID (1 << 7) | |
293 | #define BGP_FLAG_ASPATH_IGNORE (1 << 8) | |
294 | #define BGP_FLAG_IMPORT_CHECK (1 << 9) | |
295 | #define BGP_FLAG_NO_FAST_EXT_FAILOVER (1 << 10) | |
848973c7 | 296 | #define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1 << 11) |
538621f2 | 297 | #define BGP_FLAG_GRACEFUL_RESTART (1 << 12) |
6811845b | 298 | #define BGP_FLAG_ASPATH_CONFED (1 << 13) |
2fdd455c | 299 | #define BGP_FLAG_ASPATH_MULTIPATH_RELAX (1 << 14) |
8bd9d948 | 300 | #define BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY (1 << 15) |
907f92c8 | 301 | #define BGP_FLAG_DISABLE_NH_CONNECTED_CHK (1 << 16) |
219178b6 | 302 | #define BGP_FLAG_MULTIPATH_RELAX_AS_SET (1 << 17) |
078430f6 | 303 | #define BGP_FLAG_FORCE_STATIC_PROCESS (1 << 18) |
5623e905 | 304 | #define BGP_FLAG_SHOW_HOSTNAME (1 << 19) |
6a9a3cde | 305 | #define BGP_FLAG_GR_PRESERVE_FWD (1 << 20) |
718e3744 | 306 | |
d62a17ae | 307 | /* BGP Per AF flags */ |
308 | u_int16_t af_flags[AFI_MAX][SAFI_MAX]; | |
718e3744 | 309 | #define BGP_CONFIG_DAMPENING (1 << 0) |
310 | ||
d62a17ae | 311 | /* Route table for next-hop lookup cache. */ |
312 | struct bgp_table *nexthop_cache_table[AFI_MAX]; | |
6aeb9e78 | 313 | |
d62a17ae | 314 | /* Route table for import-check */ |
315 | struct bgp_table *import_check_table[AFI_MAX]; | |
6aeb9e78 | 316 | |
d62a17ae | 317 | struct bgp_table *connected_table[AFI_MAX]; |
6aeb9e78 | 318 | |
d62a17ae | 319 | struct hash *address_hash; |
6aeb9e78 | 320 | |
d62a17ae | 321 | /* Static route configuration. */ |
322 | struct bgp_table *route[AFI_MAX][SAFI_MAX]; | |
718e3744 | 323 | |
d62a17ae | 324 | /* Aggregate address configuration. */ |
325 | struct bgp_table *aggregate[AFI_MAX][SAFI_MAX]; | |
718e3744 | 326 | |
d62a17ae | 327 | /* BGP routing information base. */ |
328 | struct bgp_table *rib[AFI_MAX][SAFI_MAX]; | |
718e3744 | 329 | |
d62a17ae | 330 | /* BGP table route-map. */ |
331 | struct bgp_rmap table_map[AFI_MAX][SAFI_MAX]; | |
73ac8160 | 332 | |
d62a17ae | 333 | /* BGP redistribute configuration. */ |
334 | struct list *redist[AFI_MAX][ZEBRA_ROUTE_MAX]; | |
718e3744 | 335 | |
d62a17ae | 336 | /* timer to re-evaluate neighbor default-originate route-maps */ |
337 | struct thread *t_rmap_def_originate_eval; | |
0de4848d DS |
338 | #define RMAP_DEFAULT_ORIGINATE_EVAL_TIMER 5 |
339 | ||
d62a17ae | 340 | /* BGP distance configuration. */ |
341 | u_char distance_ebgp[AFI_MAX][SAFI_MAX]; | |
342 | u_char distance_ibgp[AFI_MAX][SAFI_MAX]; | |
343 | u_char distance_local[AFI_MAX][SAFI_MAX]; | |
344 | ||
345 | /* BGP default local-preference. */ | |
346 | u_int32_t default_local_pref; | |
347 | ||
348 | /* BGP default subgroup pkt queue max */ | |
349 | u_int32_t default_subgroup_pkt_queue_max; | |
350 | ||
351 | /* BGP default timer. */ | |
352 | u_int32_t default_holdtime; | |
353 | u_int32_t default_keepalive; | |
354 | ||
355 | /* BGP graceful restart */ | |
356 | u_int32_t restart_time; | |
357 | u_int32_t stalepath_time; | |
358 | ||
359 | /* Maximum-paths configuration */ | |
360 | struct bgp_maxpaths_cfg { | |
361 | u_int16_t maxpaths_ebgp; | |
362 | u_int16_t maxpaths_ibgp; | |
363 | u_int16_t ibgp_flags; | |
5e242b0d | 364 | #define BGP_FLAG_IBGP_MULTIPATH_SAME_CLUSTERLEN (1 << 0) |
d62a17ae | 365 | } maxpaths[AFI_MAX][SAFI_MAX]; |
cb1faec9 | 366 | |
d62a17ae | 367 | u_int32_t wpkt_quanta; /* per peer packet quanta to write */ |
368 | u_int32_t coalesce_time; | |
adbac85e | 369 | |
d62a17ae | 370 | u_int32_t addpath_tx_id; |
371 | int addpath_tx_used[AFI_MAX][SAFI_MAX]; | |
65efcfce LB |
372 | |
373 | #if ENABLE_BGP_VNC | |
d62a17ae | 374 | struct rfapi_cfg *rfapi_cfg; |
375 | struct rfapi *rfapi; | |
65efcfce | 376 | #endif |
19df7279 | 377 | |
d62a17ae | 378 | /* EVPN related information */ |
14c1a7bf | 379 | |
d62a17ae | 380 | /* EVI hash table */ |
381 | struct hash *vnihash; | |
14c1a7bf | 382 | |
d62a17ae | 383 | /* EVPN enable - advertise local VNIs and their MACs etc. */ |
384 | int advertise_all_vni; | |
14c1a7bf | 385 | |
d62a17ae | 386 | /* Hash table of Import RTs to EVIs */ |
387 | struct hash *import_rt_hash; | |
14c1a7bf | 388 | |
d62a17ae | 389 | /* Id space for automatic RD derivation for an EVI */ |
390 | bitfield_t rd_idspace; | |
14c1a7bf | 391 | |
d62a17ae | 392 | QOBJ_FIELDS |
718e3744 | 393 | }; |
19df7279 | 394 | DECLARE_QOBJ_TYPE(bgp) |
718e3744 | 395 | |
2a3d5731 | 396 | #define BGP_ROUTE_ADV_HOLD(bgp) (bgp->main_peers_update_hold) |
d889623f | 397 | |
d62a17ae | 398 | #define IS_BGP_INST_KNOWN_TO_ZEBRA(bgp) \ |
399 | (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT \ | |
400 | || (bgp->inst_type == BGP_INSTANCE_TYPE_VRF \ | |
401 | && bgp->vrf_id != VRF_UNKNOWN)) | |
ad4cbda1 | 402 | |
718e3744 | 403 | /* BGP peer-group support. */ |
d62a17ae | 404 | struct peer_group { |
405 | /* Name of the peer-group. */ | |
406 | char *name; | |
718e3744 | 407 | |
d62a17ae | 408 | /* Pointer to BGP. */ |
409 | struct bgp *bgp; | |
718e3744 | 410 | |
d62a17ae | 411 | /* Peer-group client list. */ |
412 | struct list *peer; | |
f14e6fdb | 413 | |
d62a17ae | 414 | /** Dynamic neighbor listening ranges */ |
415 | struct list *listen_range[AFI_MAX]; | |
416 | ||
417 | /* Peer-group config */ | |
418 | struct peer *conf; | |
718e3744 | 419 | }; |
420 | ||
421 | /* BGP Notify message format. */ | |
d62a17ae | 422 | struct bgp_notify { |
423 | u_char code; | |
424 | u_char subcode; | |
425 | char *data; | |
426 | bgp_size_t length; | |
427 | u_char *raw_data; | |
718e3744 | 428 | }; |
429 | ||
430 | /* Next hop self address. */ | |
d62a17ae | 431 | struct bgp_nexthop { |
432 | struct interface *ifp; | |
433 | struct in_addr v4; | |
434 | struct in6_addr v6_global; | |
435 | struct in6_addr v6_local; | |
718e3744 | 436 | }; |
437 | ||
a82478b9 DS |
438 | /* BGP addpath values */ |
439 | #define BGP_ADDPATH_RX 1 | |
440 | #define BGP_ADDPATH_TX 2 | |
441 | #define BGP_ADDPATH_ID_LEN 4 | |
442 | ||
adbac85e DW |
443 | #define BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE 1 |
444 | ||
718e3744 | 445 | /* BGP router distinguisher value. */ |
446 | #define BGP_RD_SIZE 8 | |
447 | ||
d62a17ae | 448 | struct bgp_rd { |
449 | u_char val[BGP_RD_SIZE]; | |
718e3744 | 450 | }; |
451 | ||
2a3d5731 DW |
452 | #define RMAP_IN 0 |
453 | #define RMAP_OUT 1 | |
454 | #define RMAP_MAX 2 | |
fee0f4c6 | 455 | |
65efcfce LB |
456 | #include "filter.h" |
457 | ||
718e3744 | 458 | /* BGP filter structure. */ |
d62a17ae | 459 | struct bgp_filter { |
460 | /* Distribute-list. */ | |
461 | struct { | |
462 | char *name; | |
463 | struct access_list *alist; | |
464 | } dlist[FILTER_MAX]; | |
465 | ||
466 | /* Prefix-list. */ | |
467 | struct { | |
468 | char *name; | |
469 | struct prefix_list *plist; | |
470 | } plist[FILTER_MAX]; | |
471 | ||
472 | /* Filter-list. */ | |
473 | struct { | |
474 | char *name; | |
475 | struct as_list *aslist; | |
476 | } aslist[FILTER_MAX]; | |
477 | ||
478 | /* Route-map. */ | |
479 | struct { | |
480 | char *name; | |
481 | struct route_map *map; | |
482 | } map[RMAP_MAX]; | |
483 | ||
484 | /* Unsuppress-map. */ | |
485 | struct { | |
486 | char *name; | |
487 | struct route_map *map; | |
488 | } usmap; | |
718e3744 | 489 | }; |
490 | ||
6d85b15b JBD |
491 | /* IBGP/EBGP identifier. We also have a CONFED peer, which is to say, |
492 | a peer who's AS is part of our Confederation. */ | |
d62a17ae | 493 | typedef enum { |
494 | BGP_PEER_IBGP = 1, | |
495 | BGP_PEER_EBGP, | |
496 | BGP_PEER_INTERNAL, | |
497 | BGP_PEER_CONFED, | |
6d85b15b JBD |
498 | } bgp_peer_sort_t; |
499 | ||
d6661008 DS |
500 | /* BGP message header and packet size. */ |
501 | #define BGP_MARKER_SIZE 16 | |
502 | #define BGP_HEADER_SIZE 19 | |
503 | #define BGP_MAX_PACKET_SIZE 4096 | |
0a91ff55 | 504 | #define BGP_MAX_PACKET_SIZE_OVERFLOW 1024 |
d6661008 | 505 | |
3f9c7369 DS |
506 | /* |
507 | * Trigger delay for bgp_announce_route(). | |
508 | */ | |
509 | #define BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS 100 | |
510 | #define BGP_ANNOUNCE_ROUTE_DELAY_MS 500 | |
511 | ||
d62a17ae | 512 | struct peer_af { |
513 | /* back pointer to the peer */ | |
514 | struct peer *peer; | |
3f9c7369 | 515 | |
d62a17ae | 516 | /* which subgroup the peer_af belongs to */ |
517 | struct update_subgroup *subgroup; | |
3f9c7369 | 518 | |
d62a17ae | 519 | /* for being part of an update subgroup's peer list */ |
520 | LIST_ENTRY(peer_af) subgrp_train; | |
3f9c7369 | 521 | |
d62a17ae | 522 | /* for being part of a packet's peer list */ |
523 | LIST_ENTRY(peer_af) pkt_train; | |
3f9c7369 | 524 | |
d62a17ae | 525 | struct bpacket *next_pkt_to_send; |
3f9c7369 | 526 | |
d62a17ae | 527 | /* |
528 | * Trigger timer for bgp_announce_route(). | |
529 | */ | |
530 | struct thread *t_announce_route; | |
3f9c7369 | 531 | |
d62a17ae | 532 | afi_t afi; |
533 | safi_t safi; | |
534 | int afid; | |
3f9c7369 DS |
535 | }; |
536 | ||
718e3744 | 537 | /* BGP neighbor structure. */ |
d62a17ae | 538 | struct peer { |
539 | /* BGP structure. */ | |
540 | struct bgp *bgp; | |
541 | ||
542 | /* reference count, primarily to allow bgp_process'ing of route_node's | |
543 | * to be done after a struct peer is deleted. | |
544 | * | |
545 | * named 'lock' for hysterical reasons within Quagga. | |
546 | */ | |
547 | int lock; | |
548 | ||
549 | /* BGP peer group. */ | |
550 | struct peer_group *group; | |
551 | uint64_t version[AFI_MAX][SAFI_MAX]; | |
552 | ||
553 | /* BGP peer_af structures, per configured AF on this peer */ | |
554 | struct peer_af *peer_af_array[BGP_AF_MAX]; | |
555 | ||
556 | /* Peer's remote AS number. */ | |
557 | int as_type; | |
558 | as_t as; | |
559 | ||
560 | /* Peer's local AS number. */ | |
561 | as_t local_as; | |
562 | ||
563 | bgp_peer_sort_t sort; | |
564 | ||
565 | /* Peer's Change local AS number. */ | |
566 | as_t change_local_as; | |
567 | ||
568 | /* Remote router ID. */ | |
569 | struct in_addr remote_id; | |
570 | ||
571 | /* Local router ID. */ | |
572 | struct in_addr local_id; | |
573 | ||
574 | /* Packet receive and send buffer. */ | |
575 | struct stream *ibuf; | |
576 | struct stream_fifo *obuf; | |
577 | struct stream *work; | |
578 | ||
579 | /* We use a separate stream to encode MP_REACH_NLRI for efficient | |
580 | * NLRI packing. peer->work stores all the other attributes. The | |
581 | * actual packet is then constructed by concatenating the two. | |
582 | */ | |
583 | struct stream *scratch; | |
584 | ||
585 | /* the doppelganger peer structure, due to dual TCP conn setup */ | |
586 | struct peer *doppelganger; | |
587 | ||
588 | /* Status of the peer. */ | |
589 | int status; | |
590 | int ostatus; | |
591 | ||
592 | /* FSM events, stored for debug purposes. | |
593 | * Note: uchar used for reduced memory usage. | |
594 | */ | |
595 | unsigned char cur_event; | |
596 | unsigned char last_event; | |
597 | unsigned char last_major_event; | |
598 | ||
599 | /* Peer index, used for dumping TABLE_DUMP_V2 format */ | |
600 | uint16_t table_dump_index; | |
601 | ||
602 | /* Peer information */ | |
603 | int fd; /* File descriptor */ | |
604 | int ttl; /* TTL of TCP connection to the peer. */ | |
605 | int rtt; /* Estimated round-trip-time from TCP_INFO */ | |
606 | int gtsm_hops; /* minimum hopcount to peer */ | |
607 | char *desc; /* Description of the peer. */ | |
608 | unsigned short port; /* Destination port for peer */ | |
609 | char *host; /* Printable address of the peer. */ | |
610 | union sockunion su; /* Sockunion address of the peer. */ | |
611 | /* $FRR indent$ */ | |
612 | /* clang-format off */ | |
a80beece | 613 | #define BGP_PEER_SU_UNSPEC(peer) (peer->su.sa.sa_family == AF_UNSPEC) |
d62a17ae | 614 | time_t uptime; /* Last Up/Down time */ |
615 | time_t readtime; /* Last read time */ | |
616 | time_t resettime; /* Last reset time */ | |
617 | ||
618 | ifindex_t ifindex; /* ifindex of the BGP connection. */ | |
619 | char *conf_if; /* neighbor interface config name. */ | |
620 | struct interface *ifp; /* corresponding interface */ | |
621 | char *ifname; /* bind interface name. */ | |
622 | char *update_if; | |
623 | union sockunion *update_source; | |
624 | ||
625 | union sockunion *su_local; /* Sockunion of local address. */ | |
626 | union sockunion *su_remote; /* Sockunion of remote address. */ | |
627 | int shared_network; /* Is this peer shared same network. */ | |
628 | struct bgp_nexthop nexthop; /* Nexthop */ | |
629 | ||
630 | /* Peer address family configuration. */ | |
631 | u_char afc[AFI_MAX][SAFI_MAX]; | |
632 | u_char afc_nego[AFI_MAX][SAFI_MAX]; | |
633 | u_char afc_adv[AFI_MAX][SAFI_MAX]; | |
634 | u_char afc_recv[AFI_MAX][SAFI_MAX]; | |
635 | ||
636 | /* Capability flags (reset in bgp_stop) */ | |
637 | u_int32_t cap; | |
718e3744 | 638 | #define PEER_CAP_REFRESH_ADV (1 << 0) /* refresh advertised */ |
639 | #define PEER_CAP_REFRESH_OLD_RCV (1 << 1) /* refresh old received */ | |
640 | #define PEER_CAP_REFRESH_NEW_RCV (1 << 2) /* refresh rfc received */ | |
641 | #define PEER_CAP_DYNAMIC_ADV (1 << 3) /* dynamic advertised */ | |
642 | #define PEER_CAP_DYNAMIC_RCV (1 << 4) /* dynamic received */ | |
538621f2 | 643 | #define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */ |
644 | #define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */ | |
0b2aa3a0 PJ |
645 | #define PEER_CAP_AS4_ADV (1 << 7) /* as4 advertised */ |
646 | #define PEER_CAP_AS4_RCV (1 << 8) /* as4 received */ | |
fe7d2a48 DS |
647 | #define PEER_CAP_RESTART_BIT_ADV (1 << 9) /* sent restart state */ |
648 | #define PEER_CAP_RESTART_BIT_RCV (1 << 10) /* peer restart state */ | |
a82478b9 DS |
649 | #define PEER_CAP_ADDPATH_ADV (1 << 11) /* addpath advertised */ |
650 | #define PEER_CAP_ADDPATH_RCV (1 << 12) /* addpath received */ | |
c744aa9f DS |
651 | #define PEER_CAP_ENHE_ADV (1 << 13) /* Extended nexthop advertised */ |
652 | #define PEER_CAP_ENHE_RCV (1 << 14) /* Extended nexthop received */ | |
04b6bdc0 DW |
653 | #define PEER_CAP_HOSTNAME_ADV (1 << 15) /* hostname advertised */ |
654 | #define PEER_CAP_HOSTNAME_RCV (1 << 16) /* hostname received */ | |
718e3744 | 655 | |
d62a17ae | 656 | /* Capability flags (reset in bgp_stop) */ |
657 | u_int32_t af_cap[AFI_MAX][SAFI_MAX]; | |
718e3744 | 658 | #define PEER_CAP_ORF_PREFIX_SM_ADV (1 << 0) /* send-mode advertised */ |
659 | #define PEER_CAP_ORF_PREFIX_RM_ADV (1 << 1) /* receive-mode advertised */ | |
660 | #define PEER_CAP_ORF_PREFIX_SM_RCV (1 << 2) /* send-mode received */ | |
661 | #define PEER_CAP_ORF_PREFIX_RM_RCV (1 << 3) /* receive-mode received */ | |
662 | #define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1 << 4) /* send-mode received */ | |
663 | #define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1 << 5) /* receive-mode received */ | |
93406d87 | 664 | #define PEER_CAP_RESTART_AF_RCV (1 << 6) /* graceful restart afi/safi received */ |
665 | #define PEER_CAP_RESTART_AF_PRESERVE_RCV (1 << 7) /* graceful restart afi/safi F-bit received */ | |
a82478b9 DS |
666 | #define PEER_CAP_ADDPATH_AF_TX_ADV (1 << 8) /* addpath tx advertised */ |
667 | #define PEER_CAP_ADDPATH_AF_TX_RCV (1 << 9) /* addpath tx received */ | |
668 | #define PEER_CAP_ADDPATH_AF_RX_ADV (1 << 10) /* addpath rx advertised */ | |
669 | #define PEER_CAP_ADDPATH_AF_RX_RCV (1 << 11) /* addpath rx received */ | |
8a92a8a0 DS |
670 | #define PEER_CAP_ENHE_AF_ADV (1 << 12) /* Extended nexthopi afi/safi advertised */ |
671 | #define PEER_CAP_ENHE_AF_RCV (1 << 13) /* Extended nexthop afi/safi received */ | |
672 | #define PEER_CAP_ENHE_AF_NEGO (1 << 14) /* Extended nexthop afi/safi negotiated */ | |
718e3744 | 673 | |
d62a17ae | 674 | /* Global configuration flags. */ |
675 | u_int32_t flags; | |
718e3744 | 676 | #define PEER_FLAG_PASSIVE (1 << 0) /* passive mode */ |
677 | #define PEER_FLAG_SHUTDOWN (1 << 1) /* shutdown */ | |
678 | #define PEER_FLAG_DONT_CAPABILITY (1 << 2) /* dont-capability */ | |
679 | #define PEER_FLAG_OVERRIDE_CAPABILITY (1 << 3) /* override-capability */ | |
680 | #define PEER_FLAG_STRICT_CAP_MATCH (1 << 4) /* strict-match */ | |
c9502438 | 681 | #define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 5) /* dynamic capability */ |
6ffd2079 | 682 | #define PEER_FLAG_DISABLE_CONNECTED_CHECK (1 << 6) /* disable-connected-check */ |
c9502438 | 683 | #define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 7) /* local-as no-prepend */ |
9d3f9705 | 684 | #define PEER_FLAG_LOCAL_AS_REPLACE_AS (1 << 8) /* local-as no-prepend replace-as */ |
1ff9a340 DS |
685 | #define PEER_FLAG_DELETE (1 << 9) /* mark the peer for deleting */ |
686 | #define PEER_FLAG_CONFIG_NODE (1 << 10) /* the node to update configs on */ | |
7f342629 DS |
687 | #define PEER_FLAG_LONESOUL (1 << 11) |
688 | #define PEER_FLAG_DYNAMIC_NEIGHBOR (1 << 12) /* dynamic neighbor */ | |
689 | #define PEER_FLAG_CAPABILITY_ENHE (1 << 13) /* Extended next-hop (rfc 5549)*/ | |
88177fe3 | 690 | #define PEER_FLAG_IFPEER_V6ONLY (1 << 14) /* if-based peer is v6 only */ |
65efcfce LB |
691 | #if ENABLE_BGP_VNC |
692 | #define PEER_FLAG_IS_RFAPI_HD (1 << 15) /* attached to rfapi HD */ | |
693 | #endif | |
d62a17ae | 694 | /* outgoing message sent in CEASE_ADMIN_SHUTDOWN notify */ |
695 | char *tx_shutdown_message; | |
718e3744 | 696 | |
d62a17ae | 697 | /* NSF mode (graceful restart) */ |
698 | u_char nsf[AFI_MAX][SAFI_MAX]; | |
93406d87 | 699 | |
d62a17ae | 700 | /* Per AF configuration flags. */ |
701 | u_int32_t af_flags[AFI_MAX][SAFI_MAX]; | |
718e3744 | 702 | #define PEER_FLAG_SEND_COMMUNITY (1 << 0) /* send-community */ |
703 | #define PEER_FLAG_SEND_EXT_COMMUNITY (1 << 1) /* send-community ext. */ | |
704 | #define PEER_FLAG_NEXTHOP_SELF (1 << 2) /* next-hop-self */ | |
705 | #define PEER_FLAG_REFLECTOR_CLIENT (1 << 3) /* reflector-client */ | |
706 | #define PEER_FLAG_RSERVER_CLIENT (1 << 4) /* route-server-client */ | |
707 | #define PEER_FLAG_SOFT_RECONFIG (1 << 5) /* soft-reconfiguration */ | |
708 | #define PEER_FLAG_AS_PATH_UNCHANGED (1 << 6) /* transparent-as */ | |
709 | #define PEER_FLAG_NEXTHOP_UNCHANGED (1 << 7) /* transparent-next-hop */ | |
710 | #define PEER_FLAG_MED_UNCHANGED (1 << 8) /* transparent-next-hop */ | |
711 | #define PEER_FLAG_DEFAULT_ORIGINATE (1 << 9) /* default-originate */ | |
712 | #define PEER_FLAG_REMOVE_PRIVATE_AS (1 << 10) /* remove-private-as */ | |
713 | #define PEER_FLAG_ALLOWAS_IN (1 << 11) /* set allowas-in */ | |
714 | #define PEER_FLAG_ORF_PREFIX_SM (1 << 12) /* orf capability send-mode */ | |
715 | #define PEER_FLAG_ORF_PREFIX_RM (1 << 13) /* orf capability receive-mode */ | |
716 | #define PEER_FLAG_MAX_PREFIX (1 << 14) /* maximum prefix */ | |
717 | #define PEER_FLAG_MAX_PREFIX_WARNING (1 << 15) /* maximum prefix warning-only */ | |
0df7c91f | 718 | #define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1 << 16) /* leave link-local nexthop unchanged */ |
a538debe | 719 | #define PEER_FLAG_FORCE_NEXTHOP_SELF (1 << 17) /* next-hop-self force */ |
5000f21c DS |
720 | #define PEER_FLAG_REMOVE_PRIVATE_AS_ALL (1 << 18) /* remove-private-as all */ |
721 | #define PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE (1 << 19) /* remove-private-as replace-as */ | |
c7122e14 | 722 | #define PEER_FLAG_AS_OVERRIDE (1 << 20) /* as-override */ |
88b8ed8d | 723 | #define PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE (1 << 21) /* remove-private-as all replace-as */ |
adbac85e | 724 | #define PEER_FLAG_ADDPATH_TX_ALL_PATHS (1 << 22) /* addpath-tx-all-paths */ |
06370dac | 725 | #define PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS (1 << 23) /* addpath-tx-bestpath-per-AS */ |
d93f7ffc | 726 | #define PEER_FLAG_WEIGHT (1 << 24) /* weight */ |
aac9ef6c | 727 | #define PEER_FLAG_ALLOWAS_IN_ORIGIN (1 << 25) /* allowas-in origin */ |
57d187bc | 728 | #define PEER_FLAG_SEND_LARGE_COMMUNITY (1 << 26) /* Send large Communities */ |
0df7c91f | 729 | |
d62a17ae | 730 | /* MD5 password */ |
731 | char *password; | |
718e3744 | 732 | |
d62a17ae | 733 | /* default-originate route-map. */ |
734 | struct { | |
735 | char *name; | |
736 | struct route_map *map; | |
737 | } default_rmap[AFI_MAX][SAFI_MAX]; | |
718e3744 | 738 | |
d62a17ae | 739 | /* Peer status flags. */ |
740 | u_int16_t sflags; | |
718e3744 | 741 | #define PEER_STATUS_ACCEPT_PEER (1 << 0) /* accept peer */ |
742 | #define PEER_STATUS_PREFIX_OVERFLOW (1 << 1) /* prefix-overflow */ | |
743 | #define PEER_STATUS_CAPABILITY_OPEN (1 << 2) /* capability open send */ | |
744 | #define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */ | |
745 | #define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */ | |
93406d87 | 746 | #define PEER_STATUS_NSF_MODE (1 << 5) /* NSF aware peer */ |
747 | #define PEER_STATUS_NSF_WAIT (1 << 6) /* wait comeback peer */ | |
718e3744 | 748 | |
d62a17ae | 749 | /* Peer status af flags (reset in bgp_stop) */ |
750 | u_int16_t af_sflags[AFI_MAX][SAFI_MAX]; | |
718e3744 | 751 | #define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */ |
752 | #define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */ | |
840fced9 DS |
753 | #define PEER_STATUS_PREFIX_THRESHOLD (1 << 2) /* exceed prefix-threshold */ |
754 | #define PEER_STATUS_PREFIX_LIMIT (1 << 3) /* exceed prefix-limit */ | |
755 | #define PEER_STATUS_EOR_SEND (1 << 4) /* end-of-rib send to peer */ | |
756 | #define PEER_STATUS_EOR_RECEIVED (1 << 5) /* end-of-rib received from peer */ | |
e0701b79 | 757 | |
d62a17ae | 758 | /* Default attribute value for the peer. */ |
759 | u_int32_t config; | |
d93f7ffc DW |
760 | #define PEER_CONFIG_TIMER (1 << 0) /* keepalive & holdtime */ |
761 | #define PEER_CONFIG_CONNECT (1 << 1) /* connect */ | |
762 | #define PEER_CONFIG_ROUTEADV (1 << 2) /* route advertise */ | |
8ffedcea | 763 | |
d62a17ae | 764 | u_int32_t holdtime; |
765 | u_int32_t keepalive; | |
766 | u_int32_t connect; | |
767 | u_int32_t routeadv; | |
768 | ||
769 | /* Timer values. */ | |
770 | u_int32_t v_start; | |
771 | u_int32_t v_connect; | |
772 | u_int32_t v_holdtime; | |
773 | u_int32_t v_keepalive; | |
774 | u_int32_t v_routeadv; | |
775 | u_int32_t v_pmax_restart; | |
776 | u_int32_t v_gr_restart; | |
777 | ||
778 | /* Threads. */ | |
779 | struct thread *t_read; | |
780 | struct thread *t_write; | |
781 | struct thread *t_start; | |
782 | struct thread *t_connect; | |
783 | struct thread *t_holdtime; | |
784 | struct thread *t_keepalive; | |
785 | struct thread *t_routeadv; | |
786 | struct thread *t_pmax_restart; | |
787 | struct thread *t_gr_restart; | |
788 | struct thread *t_gr_stale; | |
789 | ||
790 | /* workqueues */ | |
791 | struct work_queue *clear_node_queue; | |
792 | ||
793 | /* Statistics field */ | |
794 | u_int32_t open_in; /* Open message input count */ | |
795 | u_int32_t open_out; /* Open message output count */ | |
796 | u_int32_t update_in; /* Update message input count */ | |
797 | u_int32_t update_out; /* Update message ouput count */ | |
798 | time_t update_time; /* Update message received time. */ | |
799 | u_int32_t keepalive_in; /* Keepalive input count */ | |
800 | u_int32_t keepalive_out; /* Keepalive output count */ | |
801 | u_int32_t notify_in; /* Notify input count */ | |
802 | u_int32_t notify_out; /* Notify output count */ | |
803 | u_int32_t refresh_in; /* Route Refresh input count */ | |
804 | u_int32_t refresh_out; /* Route Refresh output count */ | |
805 | u_int32_t dynamic_cap_in; /* Dynamic Capability input count. */ | |
806 | u_int32_t dynamic_cap_out; /* Dynamic Capability output count. */ | |
807 | ||
808 | /* BGP state count */ | |
809 | u_int32_t established; /* Established */ | |
810 | u_int32_t dropped; /* Dropped */ | |
811 | ||
812 | /* Update delay related fields */ | |
813 | u_char update_delay_over; /* When this is set, BGP is no more waiting | |
814 | for EOR */ | |
815 | ||
816 | /* Syncronization list and time. */ | |
817 | struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX]; | |
818 | time_t synctime; | |
819 | time_t last_write; /* timestamp when the last msg was written */ | |
820 | time_t last_update; /* timestamp when the last UPDATE msg was written */ | |
821 | ||
822 | /* Send prefix count. */ | |
823 | unsigned long scount[AFI_MAX][SAFI_MAX]; | |
824 | ||
825 | /* Announcement attribute hash. */ | |
826 | struct hash *hash[AFI_MAX][SAFI_MAX]; | |
827 | ||
828 | /* Notify data. */ | |
829 | struct bgp_notify notify; | |
830 | ||
831 | /* Whole packet size to be read. */ | |
832 | unsigned long packet_size; | |
833 | ||
834 | /* Filter structure. */ | |
835 | struct bgp_filter filter[AFI_MAX][SAFI_MAX]; | |
836 | ||
837 | /* ORF Prefix-list */ | |
838 | struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX]; | |
839 | ||
840 | /* Text description of last attribute rcvd */ | |
841 | char rcvd_attr_str[BUFSIZ]; | |
842 | ||
843 | /* Track if we printed the attribute in debugs */ | |
844 | int rcvd_attr_printed; | |
845 | ||
846 | /* Prefix count. */ | |
847 | unsigned long pcount[AFI_MAX][SAFI_MAX]; | |
848 | ||
849 | /* Max prefix count. */ | |
850 | unsigned long pmax[AFI_MAX][SAFI_MAX]; | |
851 | u_char pmax_threshold[AFI_MAX][SAFI_MAX]; | |
852 | u_int16_t pmax_restart[AFI_MAX][SAFI_MAX]; | |
e0701b79 | 853 | #define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75 |
718e3744 | 854 | |
d62a17ae | 855 | /* allowas-in. */ |
856 | char allowas_in[AFI_MAX][SAFI_MAX]; | |
ac41b2a2 | 857 | |
d62a17ae | 858 | /* weight */ |
859 | unsigned long weight[AFI_MAX][SAFI_MAX]; | |
d93f7ffc | 860 | |
d62a17ae | 861 | /* peer reset cause */ |
862 | char last_reset; | |
e0701b79 | 863 | #define PEER_DOWN_RID_CHANGE 1 /* bgp router-id command */ |
864 | #define PEER_DOWN_REMOTE_AS_CHANGE 2 /* neighbor remote-as command */ | |
865 | #define PEER_DOWN_LOCAL_AS_CHANGE 3 /* neighbor local-as command */ | |
866 | #define PEER_DOWN_CLID_CHANGE 4 /* bgp cluster-id command */ | |
867 | #define PEER_DOWN_CONFED_ID_CHANGE 5 /* bgp confederation identifier command */ | |
868 | #define PEER_DOWN_CONFED_PEER_CHANGE 6 /* bgp confederation peer command */ | |
869 | #define PEER_DOWN_RR_CLIENT_CHANGE 7 /* neighbor route-reflector-client command */ | |
870 | #define PEER_DOWN_RS_CLIENT_CHANGE 8 /* neighbor route-server-client command */ | |
871 | #define PEER_DOWN_UPDATE_SOURCE_CHANGE 9 /* neighbor update-source command */ | |
872 | #define PEER_DOWN_AF_ACTIVATE 10 /* neighbor activate command */ | |
873 | #define PEER_DOWN_USER_SHUTDOWN 11 /* neighbor shutdown command */ | |
874 | #define PEER_DOWN_USER_RESET 12 /* clear ip bgp command */ | |
875 | #define PEER_DOWN_NOTIFY_RECEIVED 13 /* notification received */ | |
876 | #define PEER_DOWN_NOTIFY_SEND 14 /* notification send */ | |
877 | #define PEER_DOWN_CLOSE_SESSION 15 /* tcp session close */ | |
878 | #define PEER_DOWN_NEIGHBOR_DELETE 16 /* neghbor delete */ | |
879 | #define PEER_DOWN_RMAP_BIND 17 /* neghbor peer-group command */ | |
880 | #define PEER_DOWN_RMAP_UNBIND 18 /* no neighbor peer-group command */ | |
881 | #define PEER_DOWN_CAPABILITY_CHANGE 19 /* neighbor capability command */ | |
882 | #define PEER_DOWN_PASSIVE_CHANGE 20 /* neighbor passive command */ | |
883 | #define PEER_DOWN_MULTIHOP_CHANGE 21 /* neighbor multihop command */ | |
93406d87 | 884 | #define PEER_DOWN_NSF_CLOSE_SESSION 22 /* NSF tcp session close */ |
8ffedcea | 885 | #define PEER_DOWN_V6ONLY_CHANGE 23 /* if-based peering v6only toggled */ |
7bbc6864 | 886 | #define PEER_DOWN_BFD_DOWN 24 /* BFD down */ |
e60480bd DD |
887 | #define PEER_DOWN_IF_DOWN 25 /* Interface down */ |
888 | #define PEER_DOWN_NBR_ADDR_DEL 26 /* Peer address lost */ | |
d62a17ae | 889 | unsigned long last_reset_cause_size; |
890 | u_char last_reset_cause[BGP_MAX_PACKET_SIZE]; | |
e0701b79 | 891 | |
d62a17ae | 892 | /* The kind of route-map Flags.*/ |
893 | u_char rmap_type; | |
ac41b2a2 | 894 | #define PEER_RMAP_TYPE_IN (1 << 0) /* neighbor route-map in */ |
895 | #define PEER_RMAP_TYPE_OUT (1 << 1) /* neighbor route-map out */ | |
896 | #define PEER_RMAP_TYPE_NETWORK (1 << 2) /* network route-map */ | |
897 | #define PEER_RMAP_TYPE_REDISTRIBUTE (1 << 3) /* redistribute route-map */ | |
898 | #define PEER_RMAP_TYPE_DEFAULT (1 << 4) /* default-originate route-map */ | |
899 | #define PEER_RMAP_TYPE_NOSET (1 << 5) /* not allow to set commands */ | |
fee0f4c6 | 900 | #define PEER_RMAP_TYPE_IMPORT (1 << 6) /* neighbor route-map import */ |
901 | #define PEER_RMAP_TYPE_EXPORT (1 << 7) /* neighbor route-map export */ | |
6410e93a | 902 | |
d62a17ae | 903 | /* peer specific BFD information */ |
904 | struct bfd_info *bfd_info; | |
04b6bdc0 | 905 | |
d62a17ae | 906 | /* hostname and domainname advertised by host */ |
907 | char *hostname; | |
908 | char *domainname; | |
19df7279 | 909 | |
d62a17ae | 910 | QOBJ_FIELDS |
718e3744 | 911 | }; |
19df7279 | 912 | DECLARE_QOBJ_TYPE(peer) |
718e3744 | 913 | |
ad4cbda1 | 914 | /* Check if suppress start/restart of sessions to peer. */ |
d62a17ae | 915 | #define BGP_PEER_START_SUPPRESSED(P) \ |
916 | (CHECK_FLAG((P)->flags, PEER_FLAG_SHUTDOWN) \ | |
917 | || CHECK_FLAG((P)->sflags, PEER_STATUS_PREFIX_OVERFLOW)) | |
ad4cbda1 | 918 | |
0df7c91f PJ |
919 | #define PEER_PASSWORD_MINLEN (1) |
920 | #define PEER_PASSWORD_MAXLEN (80) | |
921 | ||
718e3744 | 922 | /* This structure's member directly points incoming packet data |
923 | stream. */ | |
d62a17ae | 924 | struct bgp_nlri { |
925 | /* AFI. */ | |
a46a2e9b | 926 | uint16_t afi; /* iana_afi_t */ |
718e3744 | 927 | |
d62a17ae | 928 | /* SAFI. */ |
a46a2e9b | 929 | uint8_t safi; /* iana_safi_t */ |
718e3744 | 930 | |
d62a17ae | 931 | /* Pointer to NLRI byte stream. */ |
932 | u_char *nlri; | |
718e3744 | 933 | |
d62a17ae | 934 | /* Length of whole NLRI. */ |
935 | bgp_size_t length; | |
718e3744 | 936 | }; |
937 | ||
938 | /* BGP versions. */ | |
939 | #define BGP_VERSION_4 4 | |
718e3744 | 940 | |
941 | /* Default BGP port number. */ | |
942 | #define BGP_PORT_DEFAULT 179 | |
943 | ||
718e3744 | 944 | /* BGP minimum message size. */ |
945 | #define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10) | |
946 | #define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4) | |
947 | #define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2) | |
948 | #define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0) | |
949 | #define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4) | |
950 | #define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3) | |
951 | ||
952 | /* BGP message types. */ | |
953 | #define BGP_MSG_OPEN 1 | |
954 | #define BGP_MSG_UPDATE 2 | |
955 | #define BGP_MSG_NOTIFY 3 | |
956 | #define BGP_MSG_KEEPALIVE 4 | |
957 | #define BGP_MSG_ROUTE_REFRESH_NEW 5 | |
958 | #define BGP_MSG_CAPABILITY 6 | |
959 | #define BGP_MSG_ROUTE_REFRESH_OLD 128 | |
960 | ||
961 | /* BGP open optional parameter. */ | |
962 | #define BGP_OPEN_OPT_AUTH 1 | |
963 | #define BGP_OPEN_OPT_CAP 2 | |
964 | ||
965 | /* BGP4 attribute type codes. */ | |
966 | #define BGP_ATTR_ORIGIN 1 | |
967 | #define BGP_ATTR_AS_PATH 2 | |
968 | #define BGP_ATTR_NEXT_HOP 3 | |
969 | #define BGP_ATTR_MULTI_EXIT_DISC 4 | |
970 | #define BGP_ATTR_LOCAL_PREF 5 | |
971 | #define BGP_ATTR_ATOMIC_AGGREGATE 6 | |
972 | #define BGP_ATTR_AGGREGATOR 7 | |
973 | #define BGP_ATTR_COMMUNITIES 8 | |
974 | #define BGP_ATTR_ORIGINATOR_ID 9 | |
975 | #define BGP_ATTR_CLUSTER_LIST 10 | |
976 | #define BGP_ATTR_DPA 11 | |
977 | #define BGP_ATTR_ADVERTISER 12 | |
978 | #define BGP_ATTR_RCID_PATH 13 | |
979 | #define BGP_ATTR_MP_REACH_NLRI 14 | |
980 | #define BGP_ATTR_MP_UNREACH_NLRI 15 | |
981 | #define BGP_ATTR_EXT_COMMUNITIES 16 | |
0b2aa3a0 PJ |
982 | #define BGP_ATTR_AS4_PATH 17 |
983 | #define BGP_ATTR_AS4_AGGREGATOR 18 | |
41367172 | 984 | #define BGP_ATTR_AS_PATHLIMIT 21 |
f4c89855 | 985 | #define BGP_ATTR_ENCAP 23 |
57d187bc | 986 | #define BGP_ATTR_LARGE_COMMUNITIES 32 |
c5a543b4 | 987 | #define BGP_ATTR_PREFIX_SID 40 |
65efcfce LB |
988 | #if ENABLE_BGP_VNC |
989 | #define BGP_ATTR_VNC 255 | |
990 | #endif | |
718e3744 | 991 | |
992 | /* BGP update origin. */ | |
993 | #define BGP_ORIGIN_IGP 0 | |
994 | #define BGP_ORIGIN_EGP 1 | |
995 | #define BGP_ORIGIN_INCOMPLETE 2 | |
996 | ||
997 | /* BGP notify message codes. */ | |
998 | #define BGP_NOTIFY_HEADER_ERR 1 | |
999 | #define BGP_NOTIFY_OPEN_ERR 2 | |
1000 | #define BGP_NOTIFY_UPDATE_ERR 3 | |
1001 | #define BGP_NOTIFY_HOLD_ERR 4 | |
1002 | #define BGP_NOTIFY_FSM_ERR 5 | |
1003 | #define BGP_NOTIFY_CEASE 6 | |
1004 | #define BGP_NOTIFY_CAPABILITY_ERR 7 | |
718e3744 | 1005 | |
4b4e07d2 DT |
1006 | #define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0 |
1007 | ||
718e3744 | 1008 | /* BGP_NOTIFY_HEADER_ERR sub codes. */ |
1009 | #define BGP_NOTIFY_HEADER_NOT_SYNC 1 | |
1010 | #define BGP_NOTIFY_HEADER_BAD_MESLEN 2 | |
1011 | #define BGP_NOTIFY_HEADER_BAD_MESTYPE 3 | |
718e3744 | 1012 | |
1013 | /* BGP_NOTIFY_OPEN_ERR sub codes. */ | |
14051b36 | 1014 | #define BGP_NOTIFY_OPEN_MALFORMED_ATTR 0 |
718e3744 | 1015 | #define BGP_NOTIFY_OPEN_UNSUP_VERSION 1 |
1016 | #define BGP_NOTIFY_OPEN_BAD_PEER_AS 2 | |
1017 | #define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3 | |
1018 | #define BGP_NOTIFY_OPEN_UNSUP_PARAM 4 | |
1019 | #define BGP_NOTIFY_OPEN_AUTH_FAILURE 5 | |
1020 | #define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6 | |
1021 | #define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7 | |
718e3744 | 1022 | |
1023 | /* BGP_NOTIFY_UPDATE_ERR sub codes. */ | |
1024 | #define BGP_NOTIFY_UPDATE_MAL_ATTR 1 | |
1025 | #define BGP_NOTIFY_UPDATE_UNREC_ATTR 2 | |
1026 | #define BGP_NOTIFY_UPDATE_MISS_ATTR 3 | |
1027 | #define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4 | |
1028 | #define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5 | |
1029 | #define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6 | |
1030 | #define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7 | |
1031 | #define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8 | |
1032 | #define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9 | |
1033 | #define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10 | |
1034 | #define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11 | |
718e3744 | 1035 | |
4b4e07d2 | 1036 | /* BGP_NOTIFY_CEASE sub codes (RFC 4486). */ |
718e3744 | 1037 | #define BGP_NOTIFY_CEASE_MAX_PREFIX 1 |
1038 | #define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2 | |
1039 | #define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3 | |
1040 | #define BGP_NOTIFY_CEASE_ADMIN_RESET 4 | |
1041 | #define BGP_NOTIFY_CEASE_CONNECT_REJECT 5 | |
1042 | #define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6 | |
545acafb | 1043 | #define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7 |
1044 | #define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8 | |
718e3744 | 1045 | |
1046 | /* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */ | |
1047 | #define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1 | |
1048 | #define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2 | |
1049 | #define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3 | |
718e3744 | 1050 | |
1051 | /* BGP finite state machine status. */ | |
1052 | #define Idle 1 | |
1053 | #define Connect 2 | |
1054 | #define Active 3 | |
1055 | #define OpenSent 4 | |
1056 | #define OpenConfirm 5 | |
1057 | #define Established 6 | |
ca058a30 PJ |
1058 | #define Clearing 7 |
1059 | #define Deleted 8 | |
1060 | #define BGP_STATUS_MAX 9 | |
718e3744 | 1061 | |
1062 | /* BGP finite state machine events. */ | |
1063 | #define BGP_Start 1 | |
1064 | #define BGP_Stop 2 | |
1065 | #define TCP_connection_open 3 | |
1066 | #define TCP_connection_closed 4 | |
1067 | #define TCP_connection_open_failed 5 | |
1068 | #define TCP_fatal_error 6 | |
1069 | #define ConnectRetry_timer_expired 7 | |
1070 | #define Hold_Timer_expired 8 | |
1071 | #define KeepAlive_timer_expired 9 | |
1072 | #define Receive_OPEN_message 10 | |
1073 | #define Receive_KEEPALIVE_message 11 | |
1074 | #define Receive_UPDATE_message 12 | |
1075 | #define Receive_NOTIFICATION_message 13 | |
ca058a30 PJ |
1076 | #define Clearing_Completed 14 |
1077 | #define BGP_EVENTS_MAX 15 | |
718e3744 | 1078 | |
1079 | /* BGP timers default value. */ | |
8efe88ea | 1080 | /* note: the DFLT_ ones depend on compile-time "defaults" selection */ |
5ca5f1c8 | 1081 | #define BGP_INIT_START_TIMER 1 |
8efe88ea DL |
1082 | #define BGP_DEFAULT_HOLDTIME DFLT_BGP_HOLDTIME |
1083 | #define BGP_DEFAULT_KEEPALIVE DFLT_BGP_KEEPALIVE | |
12179ba3 | 1084 | #define BGP_DEFAULT_EBGP_ROUTEADV 0 |
1670355a | 1085 | #define BGP_DEFAULT_IBGP_ROUTEADV 0 |
8efe88ea | 1086 | #define BGP_DEFAULT_CONNECT_RETRY DFLT_BGP_TIMERS_CONNECT |
718e3744 | 1087 | |
1088 | /* BGP default local preference. */ | |
1089 | #define BGP_DEFAULT_LOCAL_PREF 100 | |
1090 | ||
3f9c7369 DS |
1091 | /* BGP default subgroup packet queue max . */ |
1092 | #define BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX 40 | |
1093 | ||
538621f2 | 1094 | /* BGP graceful restart */ |
1095 | #define BGP_DEFAULT_RESTART_TIME 120 | |
1096 | #define BGP_DEFAULT_STALEPATH_TIME 360 | |
1097 | ||
718e3744 | 1098 | /* BGP uptime string length. */ |
1099 | #define BGP_UPTIME_LEN 25 | |
1100 | ||
1101 | /* Default configuration settings for bgpd. */ | |
1102 | #define BGP_VTY_PORT 2605 | |
718e3744 | 1103 | #define BGP_DEFAULT_CONFIG "bgpd.conf" |
1104 | ||
1105 | /* Check AS path loop when we send NLRI. */ | |
1106 | /* #define BGP_SEND_ASPATH_CHECK */ | |
1107 | ||
f14e6fdb DS |
1108 | /* BGP Dynamic Neighbors feature */ |
1109 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT 100 | |
1110 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_MIN 1 | |
1111 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_MAX 5000 | |
1112 | ||
718e3744 | 1113 | /* Flag for peer_clear_soft(). */ |
d62a17ae | 1114 | enum bgp_clear_type { |
1115 | BGP_CLEAR_SOFT_NONE, | |
1116 | BGP_CLEAR_SOFT_OUT, | |
1117 | BGP_CLEAR_SOFT_IN, | |
1118 | BGP_CLEAR_SOFT_BOTH, | |
1119 | BGP_CLEAR_SOFT_IN_ORF_PREFIX | |
718e3744 | 1120 | }; |
1121 | ||
1122 | /* Macros. */ | |
1123 | #define BGP_INPUT(P) ((P)->ibuf) | |
1124 | #define BGP_INPUT_PNT(P) (STREAM_PNT(BGP_INPUT(P))) | |
d62a17ae | 1125 | #define BGP_IS_VALID_STATE_FOR_NOTIF(S) \ |
1126 | (((S) == OpenSent) || ((S) == OpenConfirm) || ((S) == Established)) | |
718e3744 | 1127 | |
718e3744 | 1128 | /* BGP error codes. */ |
1129 | #define BGP_SUCCESS 0 | |
1130 | #define BGP_ERR_INVALID_VALUE -1 | |
1131 | #define BGP_ERR_INVALID_FLAG -2 | |
1132 | #define BGP_ERR_INVALID_AS -3 | |
1133 | #define BGP_ERR_INVALID_BGP -4 | |
1134 | #define BGP_ERR_PEER_GROUP_MEMBER -5 | |
1135 | #define BGP_ERR_MULTIPLE_INSTANCE_USED -6 | |
c8560b44 DW |
1136 | #define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -7 |
1137 | #define BGP_ERR_PEER_GROUP_CANT_CHANGE -8 | |
1138 | #define BGP_ERR_PEER_GROUP_MISMATCH -9 | |
1139 | #define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -10 | |
1140 | #define BGP_ERR_MULTIPLE_INSTANCE_NOT_SET -11 | |
1141 | #define BGP_ERR_AS_MISMATCH -12 | |
1142 | #define BGP_ERR_PEER_FLAG_CONFLICT -13 | |
1143 | #define BGP_ERR_PEER_GROUP_SHUTDOWN -14 | |
1144 | #define BGP_ERR_PEER_FILTER_CONFLICT -15 | |
1145 | #define BGP_ERR_NOT_INTERNAL_PEER -16 | |
1146 | #define BGP_ERR_REMOVE_PRIVATE_AS -17 | |
1147 | #define BGP_ERR_AF_UNCONFIGURED -18 | |
1148 | #define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -19 | |
1149 | #define BGP_ERR_INSTANCE_MISMATCH -20 | |
1150 | #define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -21 | |
1151 | #define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -22 | |
1152 | #define BGP_ERR_TCPSIG_FAILED -23 | |
1153 | #define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -24 | |
1154 | #define BGP_ERR_NO_IBGP_WITH_TTLHACK -25 | |
1155 | #define BGP_ERR_NO_INTERFACE_CONFIG -26 | |
1156 | #define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS -27 | |
1157 | #define BGP_ERR_AS_OVERRIDE -28 | |
1158 | #define BGP_ERR_INVALID_DYNAMIC_NEIGHBORS_LIMIT -29 | |
1159 | #define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_EXISTS -30 | |
1160 | #define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND -31 | |
1161 | #define BGP_ERR_INVALID_FOR_DYNAMIC_PEER -32 | |
1162 | #define BGP_ERR_MAX -33 | |
63fa10b5 | 1163 | #define BGP_ERR_INVALID_FOR_DIRECT_PEER -34 |
9bedbb1e | 1164 | #define BGP_ERR_PEER_SAFI_CONFLICT -35 |
718e3744 | 1165 | |
3f9c7369 DS |
1166 | /* |
1167 | * Enumeration of different policy kinds a peer can be configured with. | |
1168 | */ | |
d62a17ae | 1169 | typedef enum { |
1170 | BGP_POLICY_ROUTE_MAP, | |
1171 | BGP_POLICY_FILTER_LIST, | |
1172 | BGP_POLICY_PREFIX_LIST, | |
1173 | BGP_POLICY_DISTRIBUTE_LIST, | |
3f9c7369 DS |
1174 | } bgp_policy_type_e; |
1175 | ||
718e3744 | 1176 | extern struct bgp_master *bm; |
37fe7731 | 1177 | extern unsigned int multipath_num; |
718e3744 | 1178 | |
718e3744 | 1179 | /* Prototypes. */ |
d62a17ae | 1180 | extern void bgp_terminate(void); |
1181 | extern void bgp_reset(void); | |
1182 | extern time_t bgp_clock(void); | |
1183 | extern void bgp_zclient_reset(void); | |
1184 | extern int bgp_nexthop_set(union sockunion *, union sockunion *, | |
1185 | struct bgp_nexthop *, struct peer *); | |
1186 | extern struct bgp *bgp_get_default(void); | |
1187 | extern struct bgp *bgp_lookup(as_t, const char *); | |
1188 | extern struct bgp *bgp_lookup_by_name(const char *); | |
1189 | extern struct bgp *bgp_lookup_by_vrf_id(vrf_id_t); | |
1190 | extern struct peer *peer_lookup(struct bgp *, union sockunion *); | |
1191 | extern struct peer *peer_lookup_by_conf_if(struct bgp *, const char *); | |
04b6bdc0 | 1192 | extern struct peer *peer_lookup_by_hostname(struct bgp *, const char *); |
d62a17ae | 1193 | extern void bgp_peer_conf_if_to_su_update(struct peer *); |
ffd0c037 | 1194 | extern int peer_group_listen_range_del(struct peer_group *, struct prefix *); |
d62a17ae | 1195 | extern struct peer_group *peer_group_lookup(struct bgp *, const char *); |
1196 | extern struct peer_group *peer_group_get(struct bgp *, const char *); | |
1197 | extern struct peer *peer_create_bind_dynamic_neighbor(struct bgp *, | |
1198 | union sockunion *, | |
1199 | struct peer_group *); | |
1200 | extern struct prefix * | |
1201 | peer_group_lookup_dynamic_neighbor_range(struct peer_group *, struct prefix *); | |
1202 | extern struct peer_group *peer_group_lookup_dynamic_neighbor(struct bgp *, | |
1203 | struct prefix *, | |
1204 | struct prefix **); | |
1205 | extern struct peer *peer_lookup_dynamic_neighbor(struct bgp *, | |
1206 | union sockunion *); | |
1207 | extern void peer_drop_dynamic_neighbor(struct peer *); | |
28066f4b DS |
1208 | |
1209 | /* | |
1210 | * Peers are incredibly easy to memory leak | |
1211 | * due to the various ways that they are actually used | |
1212 | * Provide some functionality to debug locks and unlocks | |
1213 | */ | |
1214 | extern struct peer *peer_lock_with_caller(const char *, struct peer *); | |
1215 | extern struct peer *peer_unlock_with_caller(const char *, struct peer *); | |
1216 | #define peer_unlock(A) peer_unlock_with_caller(__FUNCTION__, (A)) | |
1217 | #define peer_lock(B) peer_lock_with_caller(__FUNCTION__, (B)) | |
1218 | ||
d62a17ae | 1219 | extern bgp_peer_sort_t peer_sort(struct peer *peer); |
1220 | extern int peer_active(struct peer *); | |
1221 | extern int peer_active_nego(struct peer *); | |
1222 | extern void bgp_recalculate_all_bestpaths(struct bgp *bgp); | |
a80beece | 1223 | extern struct peer *peer_create(union sockunion *, const char *, struct bgp *, |
d62a17ae | 1224 | as_t, as_t, int, afi_t, safi_t, |
1225 | struct peer_group *); | |
1226 | extern struct peer *peer_create_accept(struct bgp *); | |
1227 | extern void peer_xfer_config(struct peer *dst, struct peer *src); | |
1228 | extern char *peer_uptime(time_t, char *, size_t, u_char, json_object *); | |
856ca177 | 1229 | |
d62a17ae | 1230 | extern int bgp_config_write(struct vty *); |
1231 | extern void bgp_config_write_family_header(struct vty *, afi_t, safi_t, int *); | |
6b0655a2 | 1232 | |
d62a17ae | 1233 | extern void bgp_master_init(struct thread_master *master); |
718e3744 | 1234 | |
d62a17ae | 1235 | extern void bgp_init(void); |
1236 | extern void bgp_route_map_init(void); | |
1237 | extern void bgp_session_reset(struct peer *); | |
718e3744 | 1238 | |
d62a17ae | 1239 | extern int bgp_option_set(int); |
1240 | extern int bgp_option_unset(int); | |
1241 | extern int bgp_option_check(int); | |
718e3744 | 1242 | |
d62a17ae | 1243 | extern int bgp_get(struct bgp **, as_t *, const char *, enum bgp_instance_type); |
1244 | extern void bgp_instance_up(struct bgp *); | |
1245 | extern void bgp_instance_down(struct bgp *); | |
1246 | extern int bgp_delete(struct bgp *); | |
718e3744 | 1247 | |
d62a17ae | 1248 | extern int bgp_flag_set(struct bgp *, int); |
1249 | extern int bgp_flag_unset(struct bgp *, int); | |
1250 | extern int bgp_flag_check(struct bgp *, int); | |
718e3744 | 1251 | |
d62a17ae | 1252 | extern void bgp_lock(struct bgp *); |
1253 | extern void bgp_unlock(struct bgp *); | |
0088b5dc | 1254 | |
d62a17ae | 1255 | extern void bgp_router_id_zebra_bump(vrf_id_t, const struct prefix *); |
1256 | extern int bgp_router_id_static_set(struct bgp *, struct in_addr); | |
718e3744 | 1257 | |
d62a17ae | 1258 | extern int bgp_cluster_id_set(struct bgp *, struct in_addr *); |
1259 | extern int bgp_cluster_id_unset(struct bgp *); | |
718e3744 | 1260 | |
d62a17ae | 1261 | extern int bgp_confederation_id_set(struct bgp *, as_t); |
1262 | extern int bgp_confederation_id_unset(struct bgp *); | |
1263 | extern int bgp_confederation_peers_check(struct bgp *, as_t); | |
718e3744 | 1264 | |
d62a17ae | 1265 | extern int bgp_confederation_peers_add(struct bgp *, as_t); |
1266 | extern int bgp_confederation_peers_remove(struct bgp *, as_t); | |
718e3744 | 1267 | |
d62a17ae | 1268 | extern int bgp_timers_set(struct bgp *, u_int32_t keepalive, |
1269 | u_int32_t holdtime); | |
1270 | extern int bgp_timers_unset(struct bgp *); | |
718e3744 | 1271 | |
d62a17ae | 1272 | extern int bgp_default_local_preference_set(struct bgp *, u_int32_t); |
1273 | extern int bgp_default_local_preference_unset(struct bgp *); | |
718e3744 | 1274 | |
d62a17ae | 1275 | extern int bgp_default_subgroup_pkt_queue_max_set(struct bgp *bgp, u_int32_t); |
1276 | extern int bgp_default_subgroup_pkt_queue_max_unset(struct bgp *bgp); | |
3f9c7369 | 1277 | |
d62a17ae | 1278 | extern int bgp_listen_limit_set(struct bgp *, int); |
1279 | extern int bgp_listen_limit_unset(struct bgp *); | |
f14e6fdb | 1280 | |
d62a17ae | 1281 | extern int bgp_update_delay_active(struct bgp *); |
1282 | extern int bgp_update_delay_configured(struct bgp *); | |
1283 | extern void peer_as_change(struct peer *, as_t, int); | |
1284 | extern int peer_remote_as(struct bgp *, union sockunion *, const char *, as_t *, | |
1285 | int, afi_t, safi_t); | |
1286 | extern int peer_group_remote_as(struct bgp *, const char *, as_t *, int); | |
1287 | extern int peer_delete(struct peer *peer); | |
1288 | extern int peer_group_delete(struct peer_group *); | |
1289 | extern int peer_group_remote_as_delete(struct peer_group *); | |
f14e6fdb | 1290 | extern int peer_group_listen_range_add(struct peer_group *, struct prefix *); |
718e3744 | 1291 | |
d62a17ae | 1292 | extern int peer_activate(struct peer *, afi_t, safi_t); |
1293 | extern int peer_deactivate(struct peer *, afi_t, safi_t); | |
1294 | extern int peer_afc_set(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1295 | |
d62a17ae | 1296 | extern int peer_group_bind(struct bgp *, union sockunion *, struct peer *, |
1297 | struct peer_group *, as_t *); | |
1298 | extern int peer_group_unbind(struct bgp *, struct peer *, struct peer_group *); | |
718e3744 | 1299 | |
d62a17ae | 1300 | extern int peer_flag_set(struct peer *, u_int32_t); |
1301 | extern int peer_flag_unset(struct peer *, u_int32_t); | |
718e3744 | 1302 | |
d62a17ae | 1303 | extern int peer_af_flag_set(struct peer *, afi_t, safi_t, u_int32_t); |
1304 | extern int peer_af_flag_unset(struct peer *, afi_t, safi_t, u_int32_t); | |
1305 | extern int peer_af_flag_check(struct peer *, afi_t, safi_t, u_int32_t); | |
718e3744 | 1306 | |
d62a17ae | 1307 | extern int peer_ebgp_multihop_set(struct peer *, int); |
1308 | extern int peer_ebgp_multihop_unset(struct peer *); | |
1309 | extern int is_ebgp_multihop_configured(struct peer *peer); | |
718e3744 | 1310 | |
d62a17ae | 1311 | extern int peer_description_set(struct peer *, const char *); |
1312 | extern int peer_description_unset(struct peer *); | |
718e3744 | 1313 | |
d62a17ae | 1314 | extern int peer_update_source_if_set(struct peer *, const char *); |
1315 | extern int peer_update_source_addr_set(struct peer *, const union sockunion *); | |
1316 | extern int peer_update_source_unset(struct peer *); | |
718e3744 | 1317 | |
d62a17ae | 1318 | extern int peer_default_originate_set(struct peer *, afi_t, safi_t, |
1319 | const char *); | |
1320 | extern int peer_default_originate_unset(struct peer *, afi_t, safi_t); | |
718e3744 | 1321 | |
d62a17ae | 1322 | extern int peer_port_set(struct peer *, u_int16_t); |
1323 | extern int peer_port_unset(struct peer *); | |
718e3744 | 1324 | |
d62a17ae | 1325 | extern int peer_weight_set(struct peer *, afi_t, safi_t, u_int16_t); |
1326 | extern int peer_weight_unset(struct peer *, afi_t, safi_t); | |
718e3744 | 1327 | |
d62a17ae | 1328 | extern int peer_timers_set(struct peer *, u_int32_t keepalive, |
1329 | u_int32_t holdtime); | |
1330 | extern int peer_timers_unset(struct peer *); | |
718e3744 | 1331 | |
d62a17ae | 1332 | extern int peer_timers_connect_set(struct peer *, u_int32_t); |
1333 | extern int peer_timers_connect_unset(struct peer *); | |
718e3744 | 1334 | |
d62a17ae | 1335 | extern int peer_advertise_interval_set(struct peer *, u_int32_t); |
1336 | extern int peer_advertise_interval_unset(struct peer *); | |
718e3744 | 1337 | |
d62a17ae | 1338 | extern void peer_interface_set(struct peer *, const char *); |
1339 | extern void peer_interface_unset(struct peer *); | |
718e3744 | 1340 | |
d62a17ae | 1341 | extern int peer_distribute_set(struct peer *, afi_t, safi_t, int, const char *); |
1342 | extern int peer_distribute_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1343 | |
d62a17ae | 1344 | extern int peer_allowas_in_set(struct peer *, afi_t, safi_t, int, int); |
1345 | extern int peer_allowas_in_unset(struct peer *, afi_t, safi_t); | |
718e3744 | 1346 | |
d62a17ae | 1347 | extern int peer_local_as_set(struct peer *, as_t, int, int); |
1348 | extern int peer_local_as_unset(struct peer *); | |
718e3744 | 1349 | |
d62a17ae | 1350 | extern int peer_prefix_list_set(struct peer *, afi_t, safi_t, int, |
1351 | const char *); | |
1352 | extern int peer_prefix_list_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1353 | |
d62a17ae | 1354 | extern int peer_aslist_set(struct peer *, afi_t, safi_t, int, const char *); |
1355 | extern int peer_aslist_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1356 | |
d62a17ae | 1357 | extern int peer_route_map_set(struct peer *, afi_t, safi_t, int, const char *); |
1358 | extern int peer_route_map_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1359 | |
d62a17ae | 1360 | extern int peer_unsuppress_map_set(struct peer *, afi_t, safi_t, const char *); |
0df7c91f | 1361 | |
d62a17ae | 1362 | extern int peer_password_set(struct peer *, const char *); |
1363 | extern int peer_password_unset(struct peer *); | |
0df7c91f | 1364 | |
d62a17ae | 1365 | extern int peer_unsuppress_map_unset(struct peer *, afi_t, safi_t); |
718e3744 | 1366 | |
d62a17ae | 1367 | extern int peer_maximum_prefix_set(struct peer *, afi_t, safi_t, u_int32_t, |
1368 | u_char, int, u_int16_t); | |
1369 | extern int peer_maximum_prefix_unset(struct peer *, afi_t, safi_t); | |
718e3744 | 1370 | |
d62a17ae | 1371 | extern int peer_clear(struct peer *, struct listnode **); |
1372 | extern int peer_clear_soft(struct peer *, afi_t, safi_t, enum bgp_clear_type); | |
93406d87 | 1373 | |
d62a17ae | 1374 | extern int peer_ttl_security_hops_set(struct peer *, int); |
1375 | extern int peer_ttl_security_hops_unset(struct peer *); | |
fa411a21 | 1376 | |
d62a17ae | 1377 | extern int peer_tx_shutdown_message_set(struct peer *, const char *msg); |
1378 | extern int peer_tx_shutdown_message_unset(struct peer *); | |
73d70fa6 | 1379 | |
d62a17ae | 1380 | extern int bgp_route_map_update_timer(struct thread *thread); |
518f0eb1 | 1381 | extern void bgp_route_map_terminate(void); |
16286195 | 1382 | |
d62a17ae | 1383 | extern int peer_cmp(struct peer *p1, struct peer *p2); |
3f9c7369 | 1384 | |
5c525538 | 1385 | extern int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi, iana_safi_t pkt_safi, |
d62a17ae | 1386 | afi_t *afi, safi_t *safi); |
1387 | extern int bgp_map_afi_safi_int2iana(afi_t afi, safi_t safi, | |
5c525538 | 1388 | iana_afi_t *pkt_afi, iana_safi_t *pkt_safi); |
9cabb64b | 1389 | |
d62a17ae | 1390 | extern struct peer_af *peer_af_create(struct peer *, afi_t, safi_t); |
1391 | extern struct peer_af *peer_af_find(struct peer *, afi_t, safi_t); | |
1392 | extern int peer_af_delete(struct peer *, afi_t, safi_t); | |
3f9c7369 | 1393 | |
ffd0c037 DS |
1394 | extern void bgp_close(void); |
1395 | ||
d62a17ae | 1396 | static inline int afindex(afi_t afi, safi_t safi) |
3f9c7369 | 1397 | { |
d62a17ae | 1398 | switch (afi) { |
1399 | case AFI_IP: | |
1400 | switch (safi) { | |
1401 | case SAFI_UNICAST: | |
1402 | return BGP_AF_IPV4_UNICAST; | |
1403 | break; | |
1404 | case SAFI_MULTICAST: | |
1405 | return BGP_AF_IPV4_MULTICAST; | |
1406 | break; | |
1407 | case SAFI_LABELED_UNICAST: | |
1408 | return BGP_AF_IPV4_LBL_UNICAST; | |
1409 | break; | |
1410 | case SAFI_MPLS_VPN: | |
1411 | return BGP_AF_IPV4_VPN; | |
1412 | break; | |
1413 | case SAFI_ENCAP: | |
1414 | return BGP_AF_IPV4_ENCAP; | |
1415 | break; | |
1416 | default: | |
1417 | return BGP_AF_MAX; | |
1418 | break; | |
1419 | } | |
1420 | break; | |
1421 | case AFI_IP6: | |
1422 | switch (safi) { | |
1423 | case SAFI_UNICAST: | |
1424 | return BGP_AF_IPV6_UNICAST; | |
1425 | break; | |
1426 | case SAFI_MULTICAST: | |
1427 | return BGP_AF_IPV6_MULTICAST; | |
1428 | break; | |
1429 | case SAFI_LABELED_UNICAST: | |
1430 | return BGP_AF_IPV6_LBL_UNICAST; | |
1431 | break; | |
1432 | case SAFI_MPLS_VPN: | |
1433 | return BGP_AF_IPV6_VPN; | |
1434 | break; | |
1435 | case SAFI_ENCAP: | |
1436 | return BGP_AF_IPV6_ENCAP; | |
1437 | break; | |
1438 | default: | |
1439 | return BGP_AF_MAX; | |
1440 | break; | |
1441 | } | |
1442 | break; | |
1443 | case AFI_L2VPN: | |
1444 | switch (safi) { | |
1445 | case SAFI_EVPN: | |
1446 | return BGP_AF_L2VPN_EVPN; | |
1447 | break; | |
1448 | default: | |
1449 | return BGP_AF_MAX; | |
1450 | break; | |
1451 | } | |
3f9c7369 | 1452 | default: |
d62a17ae | 1453 | return BGP_AF_MAX; |
1454 | break; | |
3f9c7369 | 1455 | } |
3f9c7369 DS |
1456 | } |
1457 | ||
c8560b44 | 1458 | /* If the peer is not a peer-group but is bound to a peer-group return 1 */ |
d62a17ae | 1459 | static inline int peer_group_active(struct peer *peer) |
3f9c7369 | 1460 | { |
d62a17ae | 1461 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) && peer->group) |
1462 | return 1; | |
1463 | return 0; | |
3f9c7369 DS |
1464 | } |
1465 | ||
1466 | /* If peer is negotiated at least one address family return 1. */ | |
d62a17ae | 1467 | static inline int peer_afi_active_nego(const struct peer *peer, afi_t afi) |
3f9c7369 | 1468 | { |
d62a17ae | 1469 | if (peer->afc_nego[afi][SAFI_UNICAST] |
1470 | || peer->afc_nego[afi][SAFI_MULTICAST] | |
1471 | || peer->afc_nego[afi][SAFI_LABELED_UNICAST] | |
1472 | || peer->afc_nego[afi][SAFI_MPLS_VPN] | |
1473 | || peer->afc_nego[afi][SAFI_ENCAP] | |
1474 | || peer->afc_nego[afi][SAFI_EVPN]) | |
1475 | return 1; | |
1476 | return 0; | |
3f9c7369 DS |
1477 | } |
1478 | ||
f14e6fdb | 1479 | /* If at least one address family activated for group, return 1. */ |
d62a17ae | 1480 | static inline int peer_group_af_configured(struct peer_group *group) |
f14e6fdb | 1481 | { |
d62a17ae | 1482 | struct peer *peer = group->conf; |
1483 | ||
1484 | if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST] | |
1485 | || peer->afc[AFI_IP][SAFI_LABELED_UNICAST] | |
1486 | || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP] | |
1487 | || peer->afc[AFI_IP6][SAFI_UNICAST] | |
1488 | || peer->afc[AFI_IP6][SAFI_MULTICAST] | |
1489 | || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST] | |
1490 | || peer->afc[AFI_IP6][SAFI_MPLS_VPN] | |
ba0fcaf6 | 1491 | || peer->afc[AFI_IP6][SAFI_ENCAP] |
1492 | || peer->afc[AFI_L2VPN][SAFI_EVPN]) | |
d62a17ae | 1493 | return 1; |
1494 | return 0; | |
f14e6fdb DS |
1495 | } |
1496 | ||
d62a17ae | 1497 | static inline char *timestamp_string(time_t ts) |
3f9c7369 | 1498 | { |
d62a17ae | 1499 | time_t tbuf; |
1500 | tbuf = time(NULL) - (bgp_clock() - ts); | |
1501 | return ctime(&tbuf); | |
3f9c7369 DS |
1502 | } |
1503 | ||
d62a17ae | 1504 | static inline int peer_established(struct peer *peer) |
3f9c7369 | 1505 | { |
d62a17ae | 1506 | if (peer->status == Established) |
1507 | return 1; | |
1508 | return 0; | |
3f9c7369 DS |
1509 | } |
1510 | ||
d62a17ae | 1511 | static inline int peer_dynamic_neighbor(struct peer *peer) |
f14e6fdb | 1512 | { |
d62a17ae | 1513 | return (CHECK_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR)) ? 1 : 0; |
f14e6fdb DS |
1514 | } |
1515 | ||
d62a17ae | 1516 | static inline int peer_cap_enhe(struct peer *peer, afi_t afi, safi_t safi) |
8a92a8a0 | 1517 | { |
d62a17ae | 1518 | return (CHECK_FLAG(peer->af_cap[afi][safi], PEER_CAP_ENHE_AF_NEGO)); |
8a92a8a0 DS |
1519 | } |
1520 | ||
d1be1f08 | 1521 | /* Lookup VRF for BGP instance based on its type. */ |
d62a17ae | 1522 | static inline struct vrf *bgp_vrf_lookup_by_instance_type(struct bgp *bgp) |
d1be1f08 | 1523 | { |
d62a17ae | 1524 | struct vrf *vrf; |
d1be1f08 | 1525 | |
d62a17ae | 1526 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) |
1527 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
1528 | else if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
1529 | vrf = vrf_lookup_by_name(bgp->name); | |
1530 | else | |
1531 | vrf = NULL; | |
d1be1f08 | 1532 | |
d62a17ae | 1533 | return vrf; |
d1be1f08 | 1534 | } |
1535 | ||
1536 | /* Link BGP instance to VRF. */ | |
d62a17ae | 1537 | static inline void bgp_vrf_link(struct bgp *bgp, struct vrf *vrf) |
d1be1f08 | 1538 | { |
d62a17ae | 1539 | bgp->vrf_id = vrf->vrf_id; |
1540 | if (vrf->info != (void *)bgp) { | |
1541 | bgp_lock(bgp); | |
1542 | vrf->info = (void *)bgp; | |
1543 | } | |
d1be1f08 | 1544 | } |
1545 | ||
1546 | /* Unlink BGP instance from VRF. */ | |
d62a17ae | 1547 | static inline void bgp_vrf_unlink(struct bgp *bgp, struct vrf *vrf) |
d1be1f08 | 1548 | { |
d62a17ae | 1549 | if (vrf->info == (void *)bgp) { |
1550 | vrf->info = NULL; | |
1551 | bgp_unlock(bgp); | |
1552 | } | |
1553 | bgp->vrf_id = VRF_UNKNOWN; | |
d1be1f08 | 1554 | } |
1555 | ||
d62a17ae | 1556 | extern void bgp_update_redist_vrf_bitmaps(struct bgp *, vrf_id_t); |
65efcfce LB |
1557 | |
1558 | /* For benefit of rfapi */ | |
d62a17ae | 1559 | extern struct peer *peer_new(struct bgp *bgp); |
65efcfce | 1560 | |
00d252cb | 1561 | #endif /* _QUAGGA_BGPD_H */ |