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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 | ||
856ca177 | 27 | #include "lib/json.h" |
6aeb9e78 | 28 | #include "vrf.h" |
94c60424 | 29 | #include "vty.h" |
6aeb9e78 | 30 | |
718e3744 | 31 | /* For union sockunion. */ |
3f9c7369 | 32 | #include "queue.h" |
718e3744 | 33 | #include "sockunion.h" |
518f0eb1 | 34 | #include "routemap.h" |
ffd0c037 | 35 | #include "linklist.h" |
8efe88ea | 36 | #include "defaults.h" |
4a1ab8e4 | 37 | #include "bgp_memory.h" |
14c1a7bf | 38 | #include "bitfield.h" |
fe1dc5a3 | 39 | #include "vxlan.h" |
955bfd98 | 40 | #include "bgp_labelpool.h" |
718e3744 | 41 | |
04b6bdc0 | 42 | #define BGP_MAX_HOSTNAME 64 /* Linux max, is larger than most other sys */ |
40520c36 | 43 | #define BGP_PEER_MAX_HASH_SIZE 16384 |
04b6bdc0 | 44 | |
5c81b96a | 45 | /* Default interval for IPv6 RAs when triggered by BGP unnumbered neighbor. */ |
46 | #define BGP_UNNUM_DEFAULT_RA_INTERVAL 10 | |
47 | ||
3f9c7369 DS |
48 | struct update_subgroup; |
49 | struct bpacket; | |
4762c213 | 50 | struct bgp_pbr_config; |
3f9c7369 | 51 | |
0299c004 DS |
52 | /* |
53 | * Allow the neighbor XXXX remote-as to take internal or external | |
d62a17ae | 54 | * AS_SPECIFIED is zero to auto-inherit original non-feature/enhancement |
55 | * behavior | |
0299c004 DS |
56 | * in the system. |
57 | */ | |
d62a17ae | 58 | enum { AS_UNSPECIFIED = 0, |
59 | AS_SPECIFIED, | |
60 | AS_INTERNAL, | |
61 | AS_EXTERNAL, | |
0299c004 DS |
62 | }; |
63 | ||
718e3744 | 64 | /* Typedef BGP specific types. */ |
d7c0a89a QY |
65 | typedef uint32_t as_t; |
66 | typedef uint16_t as16_t; /* we may still encounter 16 Bit asnums */ | |
67 | typedef uint16_t bgp_size_t; | |
718e3744 | 68 | |
d62a17ae | 69 | #define max(a, b) \ |
70 | ({ \ | |
71 | __typeof__(a) _a = (a); \ | |
72 | __typeof__(b) _b = (b); \ | |
73 | _a > _b ? _a : _b; \ | |
74 | }) | |
75 | ||
76 | enum bgp_af_index { | |
77 | BGP_AF_START, | |
78 | BGP_AF_IPV4_UNICAST = BGP_AF_START, | |
79 | BGP_AF_IPV4_MULTICAST, | |
80 | BGP_AF_IPV4_VPN, | |
81 | BGP_AF_IPV6_UNICAST, | |
82 | BGP_AF_IPV6_MULTICAST, | |
83 | BGP_AF_IPV6_VPN, | |
84 | BGP_AF_IPV4_ENCAP, | |
85 | BGP_AF_IPV6_ENCAP, | |
86 | BGP_AF_L2VPN_EVPN, | |
87 | BGP_AF_IPV4_LBL_UNICAST, | |
88 | BGP_AF_IPV6_LBL_UNICAST, | |
7c40bf39 | 89 | BGP_AF_IPV4_FLOWSPEC, |
90 | BGP_AF_IPV6_FLOWSPEC, | |
d62a17ae | 91 | BGP_AF_MAX |
3f9c7369 DS |
92 | }; |
93 | ||
d62a17ae | 94 | #define AF_FOREACH(af) for ((af) = BGP_AF_START; (af) < BGP_AF_MAX; (af)++) |
3f9c7369 | 95 | |
d62a17ae | 96 | #define FOREACH_AFI_SAFI(afi, safi) \ |
97 | for (afi = AFI_IP; afi < AFI_MAX; afi++) \ | |
98 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
3f9c7369 | 99 | |
718e3744 | 100 | /* BGP master for system wide configurations and variables. */ |
d62a17ae | 101 | struct bgp_master { |
102 | /* BGP instance list. */ | |
103 | struct list *bgp; | |
104 | ||
105 | /* BGP thread master. */ | |
106 | struct thread_master *master; | |
718e3744 | 107 | |
0ca8b79f | 108 | /* BGP pthreads. */ |
424ab01d | 109 | #define PTHREAD_IO (1 << 1) |
0ca8b79f | 110 | #define PTHREAD_KEEPALIVES (1 << 2) |
2d4ee774 | 111 | |
d62a17ae | 112 | /* work queues */ |
113 | struct work_queue *process_main_queue; | |
87d4a781 | 114 | |
d62a17ae | 115 | /* Listening sockets */ |
116 | struct list *listen_sockets; | |
718e3744 | 117 | |
d62a17ae | 118 | /* BGP port number. */ |
d7c0a89a | 119 | uint16_t port; |
3a02d1f7 | 120 | |
d62a17ae | 121 | /* Listener address */ |
122 | char *address; | |
718e3744 | 123 | |
d62a17ae | 124 | /* BGP start time. */ |
125 | time_t start_time; | |
126 | ||
127 | /* Various BGP global configuration. */ | |
d7c0a89a | 128 | uint8_t options; |
718e3744 | 129 | #define BGP_OPT_NO_FIB (1 << 0) |
130 | #define BGP_OPT_MULTIPLE_INSTANCE (1 << 1) | |
131 | #define BGP_OPT_CONFIG_CISCO (1 << 2) | |
cccbc015 | 132 | #define BGP_OPT_NO_LISTEN (1 << 3) |
3f9c7369 | 133 | |
d62a17ae | 134 | uint64_t updgrp_idspace; |
135 | uint64_t subgrp_idspace; | |
5fe9f963 | 136 | |
d62a17ae | 137 | /* timer to dampen route map changes */ |
138 | struct thread *t_rmap_update; /* Handle route map updates */ | |
d7c0a89a | 139 | uint32_t rmap_update_timer; /* Route map update timer */ |
5fe9f963 | 140 | #define RMAP_DEFAULT_UPDATE_TIMER 5 /* disabled by default */ |
19df7279 | 141 | |
e9eb5f63 | 142 | /* Id space for automatic RD derivation for an EVI/VRF */ |
143 | bitfield_t rd_idspace; | |
144 | ||
955bfd98 PZ |
145 | /* dynamic mpls label allocation pool */ |
146 | struct labelpool labelpool; | |
147 | ||
97b4a0ec | 148 | bool terminating; /* global flag that sigint terminate seen */ |
d62a17ae | 149 | QOBJ_FIELDS |
718e3744 | 150 | }; |
19df7279 | 151 | DECLARE_QOBJ_TYPE(bgp_master) |
718e3744 | 152 | |
73ac8160 | 153 | /* BGP route-map structure. */ |
d62a17ae | 154 | struct bgp_rmap { |
155 | char *name; | |
156 | struct route_map *map; | |
73ac8160 DS |
157 | }; |
158 | ||
d62a17ae | 159 | struct bgp_redist { |
d7c0a89a | 160 | unsigned short instance; |
7c8ff89e | 161 | |
d62a17ae | 162 | /* BGP redistribute metric configuration. */ |
d7c0a89a QY |
163 | uint8_t redist_metric_flag; |
164 | uint32_t redist_metric; | |
7c8ff89e | 165 | |
d62a17ae | 166 | /* BGP redistribute route-map. */ |
167 | struct bgp_rmap rmap; | |
7c8ff89e DS |
168 | }; |
169 | ||
ddb5b488 PZ |
170 | typedef enum { |
171 | BGP_VPN_POLICY_DIR_FROMVPN = 0, | |
172 | BGP_VPN_POLICY_DIR_TOVPN = 1, | |
173 | BGP_VPN_POLICY_DIR_MAX = 2 | |
174 | } vpn_policy_direction_t; | |
175 | ||
e70e9f8e PZ |
176 | struct vpn_policy { |
177 | struct bgp *bgp; /* parent */ | |
178 | afi_t afi; | |
179 | struct ecommunity *rtlist[BGP_VPN_POLICY_DIR_MAX]; | |
180 | struct ecommunity *import_redirect_rtlist; | |
181 | char *rmap_name[BGP_VPN_POLICY_DIR_MAX]; | |
182 | struct route_map *rmap[BGP_VPN_POLICY_DIR_MAX]; | |
183 | ||
184 | /* should be mpls_label_t? */ | |
185 | uint32_t tovpn_label; /* may be MPLS_LABEL_NONE */ | |
186 | uint32_t tovpn_zebra_vrf_label_last_sent; | |
187 | struct prefix_rd tovpn_rd; | |
188 | struct prefix tovpn_nexthop; /* unset => set to 0 */ | |
189 | uint32_t flags; | |
190 | #define BGP_VPN_POLICY_TOVPN_LABEL_AUTO (1 << 0) | |
191 | #define BGP_VPN_POLICY_TOVPN_RD_SET (1 << 1) | |
192 | #define BGP_VPN_POLICY_TOVPN_NEXTHOP_SET (1 << 2) | |
12a844a5 | 193 | |
1d4e8b0d DS |
194 | /* |
195 | * If we are importing another vrf into us keep a list of | |
196 | * vrf names that are being imported into us. | |
197 | */ | |
12a844a5 | 198 | struct list *import_vrf; |
1d4e8b0d DS |
199 | |
200 | /* | |
201 | * if we are being exported to another vrf keep a list of | |
202 | * vrf names that we are being exported to. | |
203 | */ | |
12a844a5 | 204 | struct list *export_vrf; |
e70e9f8e PZ |
205 | }; |
206 | ||
ad4cbda1 | 207 | /* |
208 | * Type of 'struct bgp'. | |
209 | * - Default: The default instance | |
210 | * - VRF: A specific (non-default) VRF | |
211 | * - View: An instance used for route exchange | |
212 | * The "default" instance is treated separately to simplify the code. Note | |
213 | * that if deployed in a Multi-VRF environment, it may not exist. | |
214 | */ | |
d62a17ae | 215 | enum bgp_instance_type { |
216 | BGP_INSTANCE_TYPE_DEFAULT, | |
217 | BGP_INSTANCE_TYPE_VRF, | |
218 | BGP_INSTANCE_TYPE_VIEW | |
ad4cbda1 | 219 | }; |
220 | ||
718e3744 | 221 | /* BGP instance structure. */ |
d62a17ae | 222 | struct bgp { |
223 | /* AS number of this BGP instance. */ | |
224 | as_t as; | |
225 | ||
226 | /* Name of this BGP instance. */ | |
227 | char *name; | |
3572fb26 | 228 | char *name_pretty; /* printable "VRF|VIEW name|default" */ |
d62a17ae | 229 | |
230 | /* Type of instance and VRF id. */ | |
231 | enum bgp_instance_type inst_type; | |
232 | vrf_id_t vrf_id; | |
233 | ||
234 | /* Reference count to allow peer_delete to finish after bgp_delete */ | |
235 | int lock; | |
236 | ||
237 | /* Self peer. */ | |
238 | struct peer *peer_self; | |
239 | ||
240 | /* BGP peer. */ | |
241 | struct list *peer; | |
242 | struct hash *peerhash; | |
243 | ||
244 | /* BGP peer group. */ | |
245 | struct list *group; | |
246 | ||
247 | /* The maximum number of BGP dynamic neighbors that can be created */ | |
248 | int dynamic_neighbors_limit; | |
249 | ||
250 | /* The current number of BGP dynamic neighbors */ | |
251 | int dynamic_neighbors_count; | |
252 | ||
253 | struct hash *update_groups[BGP_AF_MAX]; | |
254 | ||
255 | /* | |
256 | * Global statistics for update groups. | |
257 | */ | |
258 | struct { | |
d7c0a89a QY |
259 | uint32_t join_events; |
260 | uint32_t prune_events; | |
261 | uint32_t merge_events; | |
262 | uint32_t split_events; | |
263 | uint32_t updgrp_switch_events; | |
264 | uint32_t peer_refreshes_combined; | |
265 | uint32_t adj_count; | |
266 | uint32_t merge_checks_triggered; | |
267 | ||
268 | uint32_t updgrps_created; | |
269 | uint32_t updgrps_deleted; | |
270 | uint32_t subgrps_created; | |
271 | uint32_t subgrps_deleted; | |
d62a17ae | 272 | } update_group_stats; |
273 | ||
274 | /* BGP configuration. */ | |
d7c0a89a | 275 | uint16_t config; |
c2d58d6d | 276 | #define BGP_CONFIG_CLUSTER_ID (1 << 0) |
277 | #define BGP_CONFIG_CONFEDERATION (1 << 1) | |
718e3744 | 278 | |
d62a17ae | 279 | /* BGP router identifier. */ |
280 | struct in_addr router_id; | |
281 | struct in_addr router_id_static; | |
282 | struct in_addr router_id_zebra; | |
718e3744 | 283 | |
d62a17ae | 284 | /* BGP route reflector cluster ID. */ |
285 | struct in_addr cluster_id; | |
718e3744 | 286 | |
d62a17ae | 287 | /* BGP confederation information. */ |
288 | as_t confed_id; | |
289 | as_t *confed_peers; | |
290 | int confed_peers_cnt; | |
718e3744 | 291 | |
d62a17ae | 292 | struct thread |
293 | *t_startup; /* start-up timer on only once at the beginning */ | |
abc920f8 | 294 | |
d7c0a89a | 295 | uint32_t v_maxmed_onstartup; /* Duration of max-med on start-up */ |
abc920f8 | 296 | #define BGP_MAXMED_ONSTARTUP_UNCONFIGURED 0 /* 0 means off, its the default */ |
d7c0a89a QY |
297 | uint32_t maxmed_onstartup_value; /* Max-med value when active on |
298 | start-up */ | |
d62a17ae | 299 | struct thread |
300 | *t_maxmed_onstartup; /* non-null when max-med onstartup is on */ | |
d7c0a89a | 301 | uint8_t maxmed_onstartup_over; /* Flag to make it effective only once */ |
d62a17ae | 302 | |
d7c0a89a | 303 | uint8_t v_maxmed_admin; /* 1/0 if max-med administrative is on/off */ |
abc920f8 | 304 | #define BGP_MAXMED_ADMIN_UNCONFIGURED 0 /* Off by default */ |
d7c0a89a QY |
305 | uint32_t maxmed_admin_value; /* Max-med value when administrative in on |
306 | */ | |
abc920f8 DS |
307 | #define BGP_MAXMED_VALUE_DEFAULT 4294967294 /* Maximum by default */ |
308 | ||
d7c0a89a QY |
309 | uint8_t maxmed_active; /* 1/0 if max-med is active or not */ |
310 | uint32_t maxmed_value; /* Max-med value when its active */ | |
d62a17ae | 311 | |
312 | /* BGP update delay on startup */ | |
313 | struct thread *t_update_delay; | |
314 | struct thread *t_establish_wait; | |
d7c0a89a QY |
315 | uint8_t update_delay_over; |
316 | uint8_t main_zebra_update_hold; | |
317 | uint8_t main_peers_update_hold; | |
318 | uint16_t v_update_delay; | |
319 | uint16_t v_establish_wait; | |
d62a17ae | 320 | char update_delay_begin_time[64]; |
321 | char update_delay_end_time[64]; | |
322 | char update_delay_zebra_resume_time[64]; | |
323 | char update_delay_peers_resume_time[64]; | |
d7c0a89a QY |
324 | uint32_t established; |
325 | uint32_t restarted_peers; | |
326 | uint32_t implicit_eors; | |
327 | uint32_t explicit_eors; | |
f188f2c4 DS |
328 | #define BGP_UPDATE_DELAY_DEF 0 |
329 | #define BGP_UPDATE_DELAY_MIN 0 | |
330 | #define BGP_UPDATE_DELAY_MAX 3600 | |
331 | ||
d62a17ae | 332 | /* BGP flags. */ |
d7c0a89a | 333 | uint32_t flags; |
718e3744 | 334 | #define BGP_FLAG_ALWAYS_COMPARE_MED (1 << 0) |
335 | #define BGP_FLAG_DETERMINISTIC_MED (1 << 1) | |
336 | #define BGP_FLAG_MED_MISSING_AS_WORST (1 << 2) | |
337 | #define BGP_FLAG_MED_CONFED (1 << 3) | |
338 | #define BGP_FLAG_NO_DEFAULT_IPV4 (1 << 4) | |
339 | #define BGP_FLAG_NO_CLIENT_TO_CLIENT (1 << 5) | |
340 | #define BGP_FLAG_ENFORCE_FIRST_AS (1 << 6) | |
341 | #define BGP_FLAG_COMPARE_ROUTER_ID (1 << 7) | |
342 | #define BGP_FLAG_ASPATH_IGNORE (1 << 8) | |
343 | #define BGP_FLAG_IMPORT_CHECK (1 << 9) | |
344 | #define BGP_FLAG_NO_FAST_EXT_FAILOVER (1 << 10) | |
848973c7 | 345 | #define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1 << 11) |
538621f2 | 346 | #define BGP_FLAG_GRACEFUL_RESTART (1 << 12) |
6811845b | 347 | #define BGP_FLAG_ASPATH_CONFED (1 << 13) |
2fdd455c | 348 | #define BGP_FLAG_ASPATH_MULTIPATH_RELAX (1 << 14) |
8bd9d948 | 349 | #define BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY (1 << 15) |
907f92c8 | 350 | #define BGP_FLAG_DISABLE_NH_CONNECTED_CHK (1 << 16) |
219178b6 | 351 | #define BGP_FLAG_MULTIPATH_RELAX_AS_SET (1 << 17) |
078430f6 | 352 | #define BGP_FLAG_FORCE_STATIC_PROCESS (1 << 18) |
5623e905 | 353 | #define BGP_FLAG_SHOW_HOSTNAME (1 << 19) |
6a9a3cde | 354 | #define BGP_FLAG_GR_PRESERVE_FWD (1 << 20) |
7f323236 | 355 | #define BGP_FLAG_GRACEFUL_SHUTDOWN (1 << 21) |
718e3744 | 356 | |
d62a17ae | 357 | /* BGP Per AF flags */ |
d7c0a89a | 358 | uint16_t af_flags[AFI_MAX][SAFI_MAX]; |
f4882003 | 359 | #define BGP_CONFIG_DAMPENING (1 << 0) |
2c29b18a | 360 | /* l2vpn evpn flags - 1 << 0 is used for DAMPENNG */ |
f4882003 MK |
361 | #define BGP_L2VPN_EVPN_ADVERTISE_IPV4_UNICAST (1 << 1) |
362 | #define BGP_L2VPN_EVPN_ADVERTISE_IPV6_UNICAST (1 << 2) | |
363 | #define BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV4 (1 << 3) | |
364 | #define BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV6 (1 << 4) | |
365 | /* import/export between address families */ | |
366 | #define BGP_CONFIG_VRF_TO_MPLSVPN_EXPORT (1 << 5) | |
367 | #define BGP_CONFIG_MPLSVPN_TO_VRF_IMPORT (1 << 6) | |
368 | /* vrf-route leaking flags */ | |
369 | #define BGP_CONFIG_VRF_TO_VRF_IMPORT (1 << 7) | |
370 | #define BGP_CONFIG_VRF_TO_VRF_EXPORT (1 << 8) | |
a8dadcf6 | 371 | #define BGP_DEFAULT_NAME "default" |
154faa50 | 372 | |
d62a17ae | 373 | /* Route table for next-hop lookup cache. */ |
374 | struct bgp_table *nexthop_cache_table[AFI_MAX]; | |
6aeb9e78 | 375 | |
d62a17ae | 376 | /* Route table for import-check */ |
377 | struct bgp_table *import_check_table[AFI_MAX]; | |
6aeb9e78 | 378 | |
d62a17ae | 379 | struct bgp_table *connected_table[AFI_MAX]; |
6aeb9e78 | 380 | |
d62a17ae | 381 | struct hash *address_hash; |
6aeb9e78 | 382 | |
db0e1937 MK |
383 | /* DB for all local tunnel-ips - used mainly for martian checks |
384 | Currently it only has all VxLan tunnel IPs*/ | |
385 | struct hash *tip_hash; | |
386 | ||
d62a17ae | 387 | /* Static route configuration. */ |
388 | struct bgp_table *route[AFI_MAX][SAFI_MAX]; | |
718e3744 | 389 | |
d62a17ae | 390 | /* Aggregate address configuration. */ |
391 | struct bgp_table *aggregate[AFI_MAX][SAFI_MAX]; | |
718e3744 | 392 | |
d62a17ae | 393 | /* BGP routing information base. */ |
394 | struct bgp_table *rib[AFI_MAX][SAFI_MAX]; | |
718e3744 | 395 | |
d62a17ae | 396 | /* BGP table route-map. */ |
397 | struct bgp_rmap table_map[AFI_MAX][SAFI_MAX]; | |
73ac8160 | 398 | |
d62a17ae | 399 | /* BGP redistribute configuration. */ |
400 | struct list *redist[AFI_MAX][ZEBRA_ROUTE_MAX]; | |
718e3744 | 401 | |
318cac96 | 402 | /* Allocate MPLS labels */ |
d7c0a89a | 403 | uint8_t allocate_mpls_labels[AFI_MAX][SAFI_MAX]; |
318cac96 | 404 | |
f3d32faa PG |
405 | /* Allocate hash entries to store policy routing information |
406 | * The hash are used to host pbr rules somewhere. | |
407 | * Actually, pbr will only be used by flowspec | |
408 | * those hash elements will have relationship together as | |
409 | * illustrated in below diagram: | |
410 | * | |
411 | * pbr_action a <----- pbr_match i <--- pbr_match_entry 1..n | |
412 | * <----- pbr_match j <--- pbr_match_entry 1..m | |
413 | * | |
414 | * - here in BGP structure, the list of match and actions will | |
415 | * stand for the list of ipset sets, and table_ids in the kernel | |
416 | * - the arrow above between pbr_match and pbr_action indicate | |
417 | * that a backpointer permits match to find the action | |
418 | * - the arrow betwen match_entry and match is a hash list | |
419 | * contained in match, that lists the whole set of entries | |
420 | */ | |
421 | struct hash *pbr_match_hash; | |
422 | struct hash *pbr_action_hash; | |
423 | ||
d62a17ae | 424 | /* timer to re-evaluate neighbor default-originate route-maps */ |
425 | struct thread *t_rmap_def_originate_eval; | |
0de4848d DS |
426 | #define RMAP_DEFAULT_ORIGINATE_EVAL_TIMER 5 |
427 | ||
d62a17ae | 428 | /* BGP distance configuration. */ |
d7c0a89a QY |
429 | uint8_t distance_ebgp[AFI_MAX][SAFI_MAX]; |
430 | uint8_t distance_ibgp[AFI_MAX][SAFI_MAX]; | |
431 | uint8_t distance_local[AFI_MAX][SAFI_MAX]; | |
d62a17ae | 432 | |
433 | /* BGP default local-preference. */ | |
d7c0a89a | 434 | uint32_t default_local_pref; |
d62a17ae | 435 | |
436 | /* BGP default subgroup pkt queue max */ | |
d7c0a89a | 437 | uint32_t default_subgroup_pkt_queue_max; |
d62a17ae | 438 | |
439 | /* BGP default timer. */ | |
d7c0a89a QY |
440 | uint32_t default_holdtime; |
441 | uint32_t default_keepalive; | |
d62a17ae | 442 | |
443 | /* BGP graceful restart */ | |
d7c0a89a QY |
444 | uint32_t restart_time; |
445 | uint32_t stalepath_time; | |
d62a17ae | 446 | |
447 | /* Maximum-paths configuration */ | |
448 | struct bgp_maxpaths_cfg { | |
d7c0a89a QY |
449 | uint16_t maxpaths_ebgp; |
450 | uint16_t maxpaths_ibgp; | |
451 | uint16_t ibgp_flags; | |
5e242b0d | 452 | #define BGP_FLAG_IBGP_MULTIPATH_SAME_CLUSTERLEN (1 << 0) |
d62a17ae | 453 | } maxpaths[AFI_MAX][SAFI_MAX]; |
cb1faec9 | 454 | |
555e09d4 QY |
455 | _Atomic uint32_t wpkt_quanta; // max # packets to write per i/o cycle |
456 | _Atomic uint32_t rpkt_quanta; // max # packets to read per i/o cycle | |
457 | ||
37a333fe QY |
458 | /* Automatic coalesce adjust on/off */ |
459 | bool heuristic_coalesce; | |
14b8641a QY |
460 | /* Actual coalesce time */ |
461 | uint32_t coalesce_time; | |
adbac85e | 462 | |
f26845f9 QY |
463 | /* Auto-shutdown new peers */ |
464 | bool autoshutdown; | |
465 | ||
d7c0a89a | 466 | uint32_t addpath_tx_id; |
d62a17ae | 467 | int addpath_tx_used[AFI_MAX][SAFI_MAX]; |
65efcfce LB |
468 | |
469 | #if ENABLE_BGP_VNC | |
d62a17ae | 470 | struct rfapi_cfg *rfapi_cfg; |
471 | struct rfapi *rfapi; | |
65efcfce | 472 | #endif |
19df7279 | 473 | |
d62a17ae | 474 | /* EVPN related information */ |
14c1a7bf | 475 | |
d62a17ae | 476 | /* EVI hash table */ |
477 | struct hash *vnihash; | |
14c1a7bf | 478 | |
1a98c087 MK |
479 | /* EVPN enable - advertise gateway macip routes */ |
480 | int advertise_gw_macip; | |
481 | ||
d62a17ae | 482 | /* EVPN enable - advertise local VNIs and their MACs etc. */ |
483 | int advertise_all_vni; | |
14c1a7bf | 484 | |
bf1061d8 VB |
485 | /* EVPN - use RFC 8365 to auto-derive RT */ |
486 | int advertise_autort_rfc8365; | |
487 | ||
d62a17ae | 488 | /* Hash table of Import RTs to EVIs */ |
489 | struct hash *import_rt_hash; | |
14c1a7bf | 490 | |
10ebe1ab MK |
491 | /* Hash table of VRF import RTs to VRFs */ |
492 | struct hash *vrf_import_rt_hash; | |
493 | ||
fe1dc5a3 MK |
494 | /* L3-VNI corresponding to this vrf */ |
495 | vni_t l3vni; | |
496 | ||
497 | /* router-mac to be used in mac-ip routes for this vrf */ | |
498 | struct ethaddr rmac; | |
499 | ||
b67a60d2 | 500 | /* originator ip - to be used as NH for type-5 routes */ |
501 | struct in_addr originator_ip; | |
502 | ||
fe1dc5a3 MK |
503 | /* vrf flags */ |
504 | uint32_t vrf_flags; | |
676f83b9 | 505 | #define BGP_VRF_AUTO (1 << 0) |
154faa50 MK |
506 | #define BGP_VRF_IMPORT_RT_CFGD (1 << 1) |
507 | #define BGP_VRF_EXPORT_RT_CFGD (1 << 2) | |
508 | #define BGP_VRF_RD_CFGD (1 << 3) | |
23e386ac MK |
509 | #define BGP_VRF_L3VNI_PREFIX_ROUTES_ONLY (1 << 4) |
510 | ||
676f83b9 | 511 | |
512 | /* unique ID for auto derivation of RD for this vrf */ | |
513 | uint16_t vrf_rd_id; | |
514 | ||
92708db6 | 515 | /* Automatically derived RD for this VRF */ |
516 | struct prefix_rd vrf_prd_auto; | |
517 | ||
676f83b9 | 518 | /* RD for this VRF */ |
519 | struct prefix_rd vrf_prd; | |
c581d8b0 MK |
520 | |
521 | /* import rt list for the vrf instance */ | |
522 | struct list *vrf_import_rtl; | |
523 | ||
524 | /* export rt list for the vrf instance */ | |
525 | struct list *vrf_export_rtl; | |
fe1dc5a3 | 526 | |
6a8657d0 MK |
527 | /* list of corresponding l2vnis (struct bgpevpn) */ |
528 | struct list *l2vnis; | |
529 | ||
53c84f78 MK |
530 | /* route map for advertise ipv4/ipv6 unicast (type-5 routes) */ |
531 | struct bgp_rmap adv_cmd_rmap[AFI_MAX][SAFI_MAX]; | |
532 | ||
e70e9f8e | 533 | struct vpn_policy vpn_policy[AFI_MAX]; |
ddb5b488 | 534 | |
4762c213 PG |
535 | struct bgp_pbr_config *bgp_pbr_cfg; |
536 | ||
50f74cf1 | 537 | /* local esi hash table */ |
538 | struct hash *esihash; | |
539 | ||
d62a17ae | 540 | QOBJ_FIELDS |
718e3744 | 541 | }; |
19df7279 | 542 | DECLARE_QOBJ_TYPE(bgp) |
718e3744 | 543 | |
2a3d5731 | 544 | #define BGP_ROUTE_ADV_HOLD(bgp) (bgp->main_peers_update_hold) |
d889623f | 545 | |
d62a17ae | 546 | #define IS_BGP_INST_KNOWN_TO_ZEBRA(bgp) \ |
547 | (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT \ | |
548 | || (bgp->inst_type == BGP_INSTANCE_TYPE_VRF \ | |
549 | && bgp->vrf_id != VRF_UNKNOWN)) | |
ad4cbda1 | 550 | |
718e3744 | 551 | /* BGP peer-group support. */ |
d62a17ae | 552 | struct peer_group { |
553 | /* Name of the peer-group. */ | |
554 | char *name; | |
718e3744 | 555 | |
d62a17ae | 556 | /* Pointer to BGP. */ |
557 | struct bgp *bgp; | |
718e3744 | 558 | |
d62a17ae | 559 | /* Peer-group client list. */ |
560 | struct list *peer; | |
f14e6fdb | 561 | |
d62a17ae | 562 | /** Dynamic neighbor listening ranges */ |
563 | struct list *listen_range[AFI_MAX]; | |
564 | ||
565 | /* Peer-group config */ | |
566 | struct peer *conf; | |
718e3744 | 567 | }; |
568 | ||
569 | /* BGP Notify message format. */ | |
d62a17ae | 570 | struct bgp_notify { |
d7c0a89a QY |
571 | uint8_t code; |
572 | uint8_t subcode; | |
d62a17ae | 573 | char *data; |
574 | bgp_size_t length; | |
d7c0a89a | 575 | uint8_t *raw_data; |
718e3744 | 576 | }; |
577 | ||
578 | /* Next hop self address. */ | |
d62a17ae | 579 | struct bgp_nexthop { |
580 | struct interface *ifp; | |
581 | struct in_addr v4; | |
582 | struct in6_addr v6_global; | |
583 | struct in6_addr v6_local; | |
718e3744 | 584 | }; |
585 | ||
a82478b9 DS |
586 | /* BGP addpath values */ |
587 | #define BGP_ADDPATH_RX 1 | |
588 | #define BGP_ADDPATH_TX 2 | |
589 | #define BGP_ADDPATH_ID_LEN 4 | |
590 | ||
adbac85e DW |
591 | #define BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE 1 |
592 | ||
718e3744 | 593 | /* BGP router distinguisher value. */ |
594 | #define BGP_RD_SIZE 8 | |
595 | ||
d62a17ae | 596 | struct bgp_rd { |
d7c0a89a | 597 | uint8_t val[BGP_RD_SIZE]; |
718e3744 | 598 | }; |
599 | ||
2a3d5731 DW |
600 | #define RMAP_IN 0 |
601 | #define RMAP_OUT 1 | |
602 | #define RMAP_MAX 2 | |
fee0f4c6 | 603 | |
65efcfce LB |
604 | #include "filter.h" |
605 | ||
718e3744 | 606 | /* BGP filter structure. */ |
d62a17ae | 607 | struct bgp_filter { |
608 | /* Distribute-list. */ | |
609 | struct { | |
610 | char *name; | |
611 | struct access_list *alist; | |
612 | } dlist[FILTER_MAX]; | |
613 | ||
614 | /* Prefix-list. */ | |
615 | struct { | |
616 | char *name; | |
617 | struct prefix_list *plist; | |
618 | } plist[FILTER_MAX]; | |
619 | ||
620 | /* Filter-list. */ | |
621 | struct { | |
622 | char *name; | |
623 | struct as_list *aslist; | |
624 | } aslist[FILTER_MAX]; | |
625 | ||
626 | /* Route-map. */ | |
627 | struct { | |
628 | char *name; | |
629 | struct route_map *map; | |
630 | } map[RMAP_MAX]; | |
631 | ||
632 | /* Unsuppress-map. */ | |
633 | struct { | |
634 | char *name; | |
635 | struct route_map *map; | |
636 | } usmap; | |
718e3744 | 637 | }; |
638 | ||
6d85b15b JBD |
639 | /* IBGP/EBGP identifier. We also have a CONFED peer, which is to say, |
640 | a peer who's AS is part of our Confederation. */ | |
d62a17ae | 641 | typedef enum { |
642 | BGP_PEER_IBGP = 1, | |
643 | BGP_PEER_EBGP, | |
644 | BGP_PEER_INTERNAL, | |
645 | BGP_PEER_CONFED, | |
6d85b15b JBD |
646 | } bgp_peer_sort_t; |
647 | ||
d6661008 DS |
648 | /* BGP message header and packet size. */ |
649 | #define BGP_MARKER_SIZE 16 | |
650 | #define BGP_HEADER_SIZE 19 | |
651 | #define BGP_MAX_PACKET_SIZE 4096 | |
0a91ff55 | 652 | #define BGP_MAX_PACKET_SIZE_OVERFLOW 1024 |
d6661008 | 653 | |
3f9c7369 DS |
654 | /* |
655 | * Trigger delay for bgp_announce_route(). | |
656 | */ | |
657 | #define BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS 100 | |
658 | #define BGP_ANNOUNCE_ROUTE_DELAY_MS 500 | |
659 | ||
d62a17ae | 660 | struct peer_af { |
661 | /* back pointer to the peer */ | |
662 | struct peer *peer; | |
3f9c7369 | 663 | |
d62a17ae | 664 | /* which subgroup the peer_af belongs to */ |
665 | struct update_subgroup *subgroup; | |
3f9c7369 | 666 | |
d62a17ae | 667 | /* for being part of an update subgroup's peer list */ |
668 | LIST_ENTRY(peer_af) subgrp_train; | |
3f9c7369 | 669 | |
d62a17ae | 670 | /* for being part of a packet's peer list */ |
671 | LIST_ENTRY(peer_af) pkt_train; | |
3f9c7369 | 672 | |
d62a17ae | 673 | struct bpacket *next_pkt_to_send; |
3f9c7369 | 674 | |
d62a17ae | 675 | /* |
676 | * Trigger timer for bgp_announce_route(). | |
677 | */ | |
678 | struct thread *t_announce_route; | |
3f9c7369 | 679 | |
d62a17ae | 680 | afi_t afi; |
681 | safi_t safi; | |
682 | int afid; | |
3f9c7369 DS |
683 | }; |
684 | ||
718e3744 | 685 | /* BGP neighbor structure. */ |
d62a17ae | 686 | struct peer { |
687 | /* BGP structure. */ | |
688 | struct bgp *bgp; | |
689 | ||
690 | /* reference count, primarily to allow bgp_process'ing of route_node's | |
691 | * to be done after a struct peer is deleted. | |
692 | * | |
693 | * named 'lock' for hysterical reasons within Quagga. | |
694 | */ | |
695 | int lock; | |
696 | ||
697 | /* BGP peer group. */ | |
698 | struct peer_group *group; | |
699 | uint64_t version[AFI_MAX][SAFI_MAX]; | |
700 | ||
701 | /* BGP peer_af structures, per configured AF on this peer */ | |
702 | struct peer_af *peer_af_array[BGP_AF_MAX]; | |
703 | ||
704 | /* Peer's remote AS number. */ | |
705 | int as_type; | |
706 | as_t as; | |
707 | ||
708 | /* Peer's local AS number. */ | |
709 | as_t local_as; | |
710 | ||
711 | bgp_peer_sort_t sort; | |
712 | ||
713 | /* Peer's Change local AS number. */ | |
714 | as_t change_local_as; | |
715 | ||
716 | /* Remote router ID. */ | |
717 | struct in_addr remote_id; | |
718 | ||
719 | /* Local router ID. */ | |
720 | struct in_addr local_id; | |
721 | ||
722 | /* Packet receive and send buffer. */ | |
424ab01d QY |
723 | pthread_mutex_t io_mtx; // guards ibuf, obuf |
724 | struct stream_fifo *ibuf; // packets waiting to be processed | |
725 | struct stream_fifo *obuf; // packets waiting to be written | |
726 | ||
74ffbfe6 QY |
727 | struct ringbuf *ibuf_work; // WiP buffer used by bgp_read() only |
728 | struct stream *obuf_work; // WiP buffer used to construct packets | |
424ab01d QY |
729 | |
730 | struct stream *curr; // the current packet being parsed | |
d62a17ae | 731 | |
732 | /* We use a separate stream to encode MP_REACH_NLRI for efficient | |
424ab01d | 733 | * NLRI packing. peer->obuf_work stores all the other attributes. The |
d62a17ae | 734 | * actual packet is then constructed by concatenating the two. |
735 | */ | |
736 | struct stream *scratch; | |
737 | ||
738 | /* the doppelganger peer structure, due to dual TCP conn setup */ | |
739 | struct peer *doppelganger; | |
740 | ||
741 | /* Status of the peer. */ | |
742 | int status; | |
743 | int ostatus; | |
744 | ||
745 | /* FSM events, stored for debug purposes. | |
746 | * Note: uchar used for reduced memory usage. | |
747 | */ | |
748 | unsigned char cur_event; | |
749 | unsigned char last_event; | |
750 | unsigned char last_major_event; | |
751 | ||
752 | /* Peer index, used for dumping TABLE_DUMP_V2 format */ | |
753 | uint16_t table_dump_index; | |
754 | ||
755 | /* Peer information */ | |
756 | int fd; /* File descriptor */ | |
757 | int ttl; /* TTL of TCP connection to the peer. */ | |
758 | int rtt; /* Estimated round-trip-time from TCP_INFO */ | |
759 | int gtsm_hops; /* minimum hopcount to peer */ | |
760 | char *desc; /* Description of the peer. */ | |
761 | unsigned short port; /* Destination port for peer */ | |
762 | char *host; /* Printable address of the peer. */ | |
763 | union sockunion su; /* Sockunion address of the peer. */ | |
a80beece | 764 | #define BGP_PEER_SU_UNSPEC(peer) (peer->su.sa.sa_family == AF_UNSPEC) |
d62a17ae | 765 | time_t uptime; /* Last Up/Down time */ |
766 | time_t readtime; /* Last read time */ | |
767 | time_t resettime; /* Last reset time */ | |
768 | ||
d62a17ae | 769 | char *conf_if; /* neighbor interface config name. */ |
770 | struct interface *ifp; /* corresponding interface */ | |
771 | char *ifname; /* bind interface name. */ | |
772 | char *update_if; | |
773 | union sockunion *update_source; | |
774 | ||
775 | union sockunion *su_local; /* Sockunion of local address. */ | |
776 | union sockunion *su_remote; /* Sockunion of remote address. */ | |
777 | int shared_network; /* Is this peer shared same network. */ | |
778 | struct bgp_nexthop nexthop; /* Nexthop */ | |
779 | ||
780 | /* Peer address family configuration. */ | |
d7c0a89a QY |
781 | uint8_t afc[AFI_MAX][SAFI_MAX]; |
782 | uint8_t afc_nego[AFI_MAX][SAFI_MAX]; | |
783 | uint8_t afc_adv[AFI_MAX][SAFI_MAX]; | |
784 | uint8_t afc_recv[AFI_MAX][SAFI_MAX]; | |
d62a17ae | 785 | |
786 | /* Capability flags (reset in bgp_stop) */ | |
d7c0a89a | 787 | uint32_t cap; |
718e3744 | 788 | #define PEER_CAP_REFRESH_ADV (1 << 0) /* refresh advertised */ |
789 | #define PEER_CAP_REFRESH_OLD_RCV (1 << 1) /* refresh old received */ | |
790 | #define PEER_CAP_REFRESH_NEW_RCV (1 << 2) /* refresh rfc received */ | |
791 | #define PEER_CAP_DYNAMIC_ADV (1 << 3) /* dynamic advertised */ | |
792 | #define PEER_CAP_DYNAMIC_RCV (1 << 4) /* dynamic received */ | |
538621f2 | 793 | #define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */ |
794 | #define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */ | |
0b2aa3a0 PJ |
795 | #define PEER_CAP_AS4_ADV (1 << 7) /* as4 advertised */ |
796 | #define PEER_CAP_AS4_RCV (1 << 8) /* as4 received */ | |
fe7d2a48 DS |
797 | #define PEER_CAP_RESTART_BIT_ADV (1 << 9) /* sent restart state */ |
798 | #define PEER_CAP_RESTART_BIT_RCV (1 << 10) /* peer restart state */ | |
a82478b9 DS |
799 | #define PEER_CAP_ADDPATH_ADV (1 << 11) /* addpath advertised */ |
800 | #define PEER_CAP_ADDPATH_RCV (1 << 12) /* addpath received */ | |
c744aa9f DS |
801 | #define PEER_CAP_ENHE_ADV (1 << 13) /* Extended nexthop advertised */ |
802 | #define PEER_CAP_ENHE_RCV (1 << 14) /* Extended nexthop received */ | |
04b6bdc0 DW |
803 | #define PEER_CAP_HOSTNAME_ADV (1 << 15) /* hostname advertised */ |
804 | #define PEER_CAP_HOSTNAME_RCV (1 << 16) /* hostname received */ | |
718e3744 | 805 | |
d62a17ae | 806 | /* Capability flags (reset in bgp_stop) */ |
d7c0a89a | 807 | uint32_t af_cap[AFI_MAX][SAFI_MAX]; |
718e3744 | 808 | #define PEER_CAP_ORF_PREFIX_SM_ADV (1 << 0) /* send-mode advertised */ |
809 | #define PEER_CAP_ORF_PREFIX_RM_ADV (1 << 1) /* receive-mode advertised */ | |
810 | #define PEER_CAP_ORF_PREFIX_SM_RCV (1 << 2) /* send-mode received */ | |
811 | #define PEER_CAP_ORF_PREFIX_RM_RCV (1 << 3) /* receive-mode received */ | |
812 | #define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1 << 4) /* send-mode received */ | |
813 | #define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1 << 5) /* receive-mode received */ | |
93406d87 | 814 | #define PEER_CAP_RESTART_AF_RCV (1 << 6) /* graceful restart afi/safi received */ |
815 | #define PEER_CAP_RESTART_AF_PRESERVE_RCV (1 << 7) /* graceful restart afi/safi F-bit received */ | |
a82478b9 DS |
816 | #define PEER_CAP_ADDPATH_AF_TX_ADV (1 << 8) /* addpath tx advertised */ |
817 | #define PEER_CAP_ADDPATH_AF_TX_RCV (1 << 9) /* addpath tx received */ | |
818 | #define PEER_CAP_ADDPATH_AF_RX_ADV (1 << 10) /* addpath rx advertised */ | |
819 | #define PEER_CAP_ADDPATH_AF_RX_RCV (1 << 11) /* addpath rx received */ | |
8a92a8a0 DS |
820 | #define PEER_CAP_ENHE_AF_ADV (1 << 12) /* Extended nexthopi afi/safi advertised */ |
821 | #define PEER_CAP_ENHE_AF_RCV (1 << 13) /* Extended nexthop afi/safi received */ | |
822 | #define PEER_CAP_ENHE_AF_NEGO (1 << 14) /* Extended nexthop afi/safi negotiated */ | |
718e3744 | 823 | |
d62a17ae | 824 | /* Global configuration flags. */ |
9fb964de PM |
825 | /* |
826 | * Parallel array to flags that indicates whether each flag originates | |
827 | * from a peer-group or if it is config that is specific to this | |
828 | * individual peer. If a flag is set independent of the peer-group, the | |
829 | * same bit should be set here. If this peer is a peer-group, this | |
830 | * memory region should be all zeros. | |
831 | * | |
832 | * The assumption is that the default state for all flags is unset, | |
833 | * so if a flag is unset, the corresponding override flag is unset too. | |
834 | * However if a flag is set, the corresponding override flag is set. | |
835 | */ | |
836 | uint32_t flags_override; | |
837 | /* | |
838 | * Parallel array to flags that indicates whether the default behavior | |
839 | * of *flags_override* should be inverted. If a flag is unset and the | |
840 | * corresponding invert flag is set, the corresponding override flag | |
841 | * would be set. However if a flag is set and the corresponding invert | |
842 | * flag is unset, the corresponding override flag would be unset. | |
843 | * | |
844 | * This can be used for attributes like *send-community*, which are | |
845 | * implicitely enabled and have to be disabled explicitely, compared to | |
846 | * 'normal' attributes like *next-hop-self* which are implicitely set. | |
847 | * | |
848 | * All operations dealing with flags should apply the following boolean | |
849 | * logic to keep the internal flag system in a sane state: | |
850 | * | |
851 | * value=0 invert=0 Inherit flag if member, otherwise unset flag | |
852 | * value=0 invert=1 Unset flag unconditionally | |
853 | * value=1 invert=0 Set flag unconditionally | |
854 | * value=1 invert=1 Inherit flag if member, otherwise set flag | |
855 | * | |
856 | * Contrary to the implementation of *flags_override*, the flag | |
857 | * inversion state can be set either on the peer OR the peer *and* the | |
858 | * peer-group. This was done on purpose, as the inversion state of a | |
859 | * flag can be determined on either the peer or the peer-group. | |
860 | * | |
861 | * Example: Enabling the cisco configuration mode inverts all flags | |
862 | * related to *send-community* unconditionally for both peer-groups and | |
863 | * peers. | |
864 | * | |
865 | * This behavior is different for interface peers though, which enable | |
866 | * the *extended-nexthop* flag by default, which regular peers do not. | |
867 | * As the peer-group can contain both regular and interface peers, the | |
868 | * flag inversion state must be set on the peer only. | |
869 | * | |
870 | * When a peer inherits the configuration from a peer-group and the | |
871 | * inversion state of the flag differs between peer and peer-group, the | |
872 | * newly set value must equal to the inverted state of the peer-group. | |
873 | */ | |
874 | uint32_t flags_invert; | |
875 | /* | |
876 | * Effective array for storing the peer/peer-group flags. In case of a | |
877 | * peer-group, the peer-specific overrides (see flags_override and | |
878 | * flags_invert) must be respected. | |
879 | */ | |
d7c0a89a | 880 | uint32_t flags; |
718e3744 | 881 | #define PEER_FLAG_PASSIVE (1 << 0) /* passive mode */ |
882 | #define PEER_FLAG_SHUTDOWN (1 << 1) /* shutdown */ | |
883 | #define PEER_FLAG_DONT_CAPABILITY (1 << 2) /* dont-capability */ | |
884 | #define PEER_FLAG_OVERRIDE_CAPABILITY (1 << 3) /* override-capability */ | |
885 | #define PEER_FLAG_STRICT_CAP_MATCH (1 << 4) /* strict-match */ | |
c9502438 | 886 | #define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 5) /* dynamic capability */ |
6ffd2079 | 887 | #define PEER_FLAG_DISABLE_CONNECTED_CHECK (1 << 6) /* disable-connected-check */ |
c9502438 | 888 | #define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 7) /* local-as no-prepend */ |
9d3f9705 | 889 | #define PEER_FLAG_LOCAL_AS_REPLACE_AS (1 << 8) /* local-as no-prepend replace-as */ |
47cbc09b PM |
890 | #define PEER_FLAG_DELETE (1 << 9) /* mark the peer for deleting */ |
891 | #define PEER_FLAG_CONFIG_NODE (1 << 10) /* the node to update configs on */ | |
7f342629 DS |
892 | #define PEER_FLAG_LONESOUL (1 << 11) |
893 | #define PEER_FLAG_DYNAMIC_NEIGHBOR (1 << 12) /* dynamic neighbor */ | |
894 | #define PEER_FLAG_CAPABILITY_ENHE (1 << 13) /* Extended next-hop (rfc 5549)*/ | |
88177fe3 | 895 | #define PEER_FLAG_IFPEER_V6ONLY (1 << 14) /* if-based peer is v6 only */ |
47cbc09b PM |
896 | #define PEER_FLAG_IS_RFAPI_HD (1 << 15) /* attached to rfapi HD */ |
897 | #define PEER_FLAG_ENFORCE_FIRST_AS (1 << 16) /* enforce-first-as */ | |
b90a8e13 PM |
898 | #define PEER_FLAG_ROUTEADV (1 << 17) /* route advertise */ |
899 | #define PEER_FLAG_TIMER (1 << 18) /* keepalive & holdtime */ | |
900 | #define PEER_FLAG_TIMER_CONNECT (1 << 19) /* connect timer */ | |
a14810f4 PM |
901 | #define PEER_FLAG_PASSWORD (1 << 20) /* password */ |
902 | #define PEER_FLAG_LOCAL_AS (1 << 21) /* local-as */ | |
903 | #define PEER_FLAG_UPDATE_SOURCE (1 << 22) /* update-source */ | |
02a82b47 | 904 | |
d62a17ae | 905 | /* outgoing message sent in CEASE_ADMIN_SHUTDOWN notify */ |
906 | char *tx_shutdown_message; | |
718e3744 | 907 | |
d62a17ae | 908 | /* NSF mode (graceful restart) */ |
d7c0a89a | 909 | uint8_t nsf[AFI_MAX][SAFI_MAX]; |
93406d87 | 910 | |
04e1c5bb QY |
911 | /* Peer Per AF flags */ |
912 | /* | |
9fb964de PM |
913 | * Please consult the comments for *flags_override*, *flags_invert* and |
914 | * *flags* to understand what these three arrays do. The address-family | |
915 | * specific attributes are being treated the exact same way as global | |
916 | * peer attributes. | |
04e1c5bb QY |
917 | */ |
918 | uint32_t af_flags_override[AFI_MAX][SAFI_MAX]; | |
27c05d4d | 919 | uint32_t af_flags_invert[AFI_MAX][SAFI_MAX]; |
d7c0a89a | 920 | uint32_t af_flags[AFI_MAX][SAFI_MAX]; |
718e3744 | 921 | #define PEER_FLAG_SEND_COMMUNITY (1 << 0) /* send-community */ |
922 | #define PEER_FLAG_SEND_EXT_COMMUNITY (1 << 1) /* send-community ext. */ | |
923 | #define PEER_FLAG_NEXTHOP_SELF (1 << 2) /* next-hop-self */ | |
924 | #define PEER_FLAG_REFLECTOR_CLIENT (1 << 3) /* reflector-client */ | |
925 | #define PEER_FLAG_RSERVER_CLIENT (1 << 4) /* route-server-client */ | |
926 | #define PEER_FLAG_SOFT_RECONFIG (1 << 5) /* soft-reconfiguration */ | |
927 | #define PEER_FLAG_AS_PATH_UNCHANGED (1 << 6) /* transparent-as */ | |
928 | #define PEER_FLAG_NEXTHOP_UNCHANGED (1 << 7) /* transparent-next-hop */ | |
929 | #define PEER_FLAG_MED_UNCHANGED (1 << 8) /* transparent-next-hop */ | |
930 | #define PEER_FLAG_DEFAULT_ORIGINATE (1 << 9) /* default-originate */ | |
931 | #define PEER_FLAG_REMOVE_PRIVATE_AS (1 << 10) /* remove-private-as */ | |
932 | #define PEER_FLAG_ALLOWAS_IN (1 << 11) /* set allowas-in */ | |
933 | #define PEER_FLAG_ORF_PREFIX_SM (1 << 12) /* orf capability send-mode */ | |
934 | #define PEER_FLAG_ORF_PREFIX_RM (1 << 13) /* orf capability receive-mode */ | |
935 | #define PEER_FLAG_MAX_PREFIX (1 << 14) /* maximum prefix */ | |
936 | #define PEER_FLAG_MAX_PREFIX_WARNING (1 << 15) /* maximum prefix warning-only */ | |
0df7c91f | 937 | #define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1 << 16) /* leave link-local nexthop unchanged */ |
a538debe | 938 | #define PEER_FLAG_FORCE_NEXTHOP_SELF (1 << 17) /* next-hop-self force */ |
5000f21c DS |
939 | #define PEER_FLAG_REMOVE_PRIVATE_AS_ALL (1 << 18) /* remove-private-as all */ |
940 | #define PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE (1 << 19) /* remove-private-as replace-as */ | |
c7122e14 | 941 | #define PEER_FLAG_AS_OVERRIDE (1 << 20) /* as-override */ |
88b8ed8d | 942 | #define PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE (1 << 21) /* remove-private-as all replace-as */ |
adbac85e | 943 | #define PEER_FLAG_ADDPATH_TX_ALL_PATHS (1 << 22) /* addpath-tx-all-paths */ |
06370dac | 944 | #define PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS (1 << 23) /* addpath-tx-bestpath-per-AS */ |
d93f7ffc | 945 | #define PEER_FLAG_WEIGHT (1 << 24) /* weight */ |
aac9ef6c | 946 | #define PEER_FLAG_ALLOWAS_IN_ORIGIN (1 << 25) /* allowas-in origin */ |
57d187bc | 947 | #define PEER_FLAG_SEND_LARGE_COMMUNITY (1 << 26) /* Send large Communities */ |
0df7c91f | 948 | |
d62a17ae | 949 | /* MD5 password */ |
950 | char *password; | |
718e3744 | 951 | |
d62a17ae | 952 | /* default-originate route-map. */ |
953 | struct { | |
954 | char *name; | |
955 | struct route_map *map; | |
956 | } default_rmap[AFI_MAX][SAFI_MAX]; | |
718e3744 | 957 | |
d62a17ae | 958 | /* Peer status flags. */ |
d7c0a89a | 959 | uint16_t sflags; |
718e3744 | 960 | #define PEER_STATUS_ACCEPT_PEER (1 << 0) /* accept peer */ |
961 | #define PEER_STATUS_PREFIX_OVERFLOW (1 << 1) /* prefix-overflow */ | |
962 | #define PEER_STATUS_CAPABILITY_OPEN (1 << 2) /* capability open send */ | |
963 | #define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */ | |
964 | #define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */ | |
93406d87 | 965 | #define PEER_STATUS_NSF_MODE (1 << 5) /* NSF aware peer */ |
966 | #define PEER_STATUS_NSF_WAIT (1 << 6) /* wait comeback peer */ | |
718e3744 | 967 | |
d62a17ae | 968 | /* Peer status af flags (reset in bgp_stop) */ |
d7c0a89a | 969 | uint16_t af_sflags[AFI_MAX][SAFI_MAX]; |
718e3744 | 970 | #define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */ |
971 | #define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */ | |
840fced9 DS |
972 | #define PEER_STATUS_PREFIX_THRESHOLD (1 << 2) /* exceed prefix-threshold */ |
973 | #define PEER_STATUS_PREFIX_LIMIT (1 << 3) /* exceed prefix-limit */ | |
974 | #define PEER_STATUS_EOR_SEND (1 << 4) /* end-of-rib send to peer */ | |
975 | #define PEER_STATUS_EOR_RECEIVED (1 << 5) /* end-of-rib received from peer */ | |
e0701b79 | 976 | |
b90a8e13 | 977 | /* Configured timer values. */ |
1588f6f4 QY |
978 | _Atomic uint32_t holdtime; |
979 | _Atomic uint32_t keepalive; | |
980 | _Atomic uint32_t connect; | |
981 | _Atomic uint32_t routeadv; | |
d62a17ae | 982 | |
983 | /* Timer values. */ | |
1588f6f4 QY |
984 | _Atomic uint32_t v_start; |
985 | _Atomic uint32_t v_connect; | |
986 | _Atomic uint32_t v_holdtime; | |
987 | _Atomic uint32_t v_keepalive; | |
988 | _Atomic uint32_t v_routeadv; | |
989 | _Atomic uint32_t v_pmax_restart; | |
990 | _Atomic uint32_t v_gr_restart; | |
d62a17ae | 991 | |
992 | /* Threads. */ | |
993 | struct thread *t_read; | |
424ab01d | 994 | struct thread *t_write; |
d62a17ae | 995 | struct thread *t_start; |
387f984e QY |
996 | struct thread *t_connect_check_r; |
997 | struct thread *t_connect_check_w; | |
d62a17ae | 998 | struct thread *t_connect; |
999 | struct thread *t_holdtime; | |
d62a17ae | 1000 | struct thread *t_routeadv; |
1001 | struct thread *t_pmax_restart; | |
1002 | struct thread *t_gr_restart; | |
1003 | struct thread *t_gr_stale; | |
56257a44 | 1004 | struct thread *t_generate_updgrp_packets; |
424ab01d | 1005 | struct thread *t_process_packet; |
d62a17ae | 1006 | |
49507a6f | 1007 | /* Thread flags. */ |
1588f6f4 | 1008 | _Atomic uint16_t thread_flags; |
b750b0ba QY |
1009 | #define PEER_THREAD_WRITES_ON (1 << 0) |
1010 | #define PEER_THREAD_READS_ON (1 << 1) | |
1011 | #define PEER_THREAD_KEEPALIVES_ON (1 << 2) | |
d62a17ae | 1012 | /* workqueues */ |
1013 | struct work_queue *clear_node_queue; | |
1014 | ||
a4d82a8a PZ |
1015 | #define PEER_TOTAL_RX(peer) \ |
1016 | atomic_load_explicit(&peer->open_in, memory_order_relaxed) \ | |
1017 | + atomic_load_explicit(&peer->update_in, memory_order_relaxed) \ | |
1018 | + atomic_load_explicit(&peer->notify_in, memory_order_relaxed) \ | |
1019 | + atomic_load_explicit(&peer->refresh_in, \ | |
1020 | memory_order_relaxed) \ | |
1021 | + atomic_load_explicit(&peer->keepalive_in, \ | |
1022 | memory_order_relaxed) \ | |
1023 | + atomic_load_explicit(&peer->dynamic_cap_in, \ | |
1024 | memory_order_relaxed) | |
1025 | ||
1026 | #define PEER_TOTAL_TX(peer) \ | |
1027 | atomic_load_explicit(&peer->open_out, memory_order_relaxed) \ | |
1028 | + atomic_load_explicit(&peer->update_out, \ | |
1029 | memory_order_relaxed) \ | |
1030 | + atomic_load_explicit(&peer->notify_out, \ | |
1031 | memory_order_relaxed) \ | |
1032 | + atomic_load_explicit(&peer->refresh_out, \ | |
1033 | memory_order_relaxed) \ | |
1034 | + atomic_load_explicit(&peer->keepalive_out, \ | |
1035 | memory_order_relaxed) \ | |
1036 | + atomic_load_explicit(&peer->dynamic_cap_out, \ | |
1037 | memory_order_relaxed) | |
0112e9e0 | 1038 | |
d62a17ae | 1039 | /* Statistics field */ |
996c9314 LB |
1040 | _Atomic uint32_t open_in; /* Open message input count */ |
1041 | _Atomic uint32_t open_out; /* Open message output count */ | |
1588f6f4 QY |
1042 | _Atomic uint32_t update_in; /* Update message input count */ |
1043 | _Atomic uint32_t update_out; /* Update message ouput count */ | |
1044 | _Atomic time_t update_time; /* Update message received time. */ | |
1045 | _Atomic uint32_t keepalive_in; /* Keepalive input count */ | |
1046 | _Atomic uint32_t keepalive_out; /* Keepalive output count */ | |
1047 | _Atomic uint32_t notify_in; /* Notify input count */ | |
1048 | _Atomic uint32_t notify_out; /* Notify output count */ | |
1049 | _Atomic uint32_t refresh_in; /* Route Refresh input count */ | |
1050 | _Atomic uint32_t refresh_out; /* Route Refresh output count */ | |
1051 | _Atomic uint32_t dynamic_cap_in; /* Dynamic Capability input count. */ | |
a4d82a8a | 1052 | _Atomic uint32_t dynamic_cap_out; /* Dynamic Capability output count. */ |
d62a17ae | 1053 | |
1054 | /* BGP state count */ | |
d7c0a89a QY |
1055 | uint32_t established; /* Established */ |
1056 | uint32_t dropped; /* Dropped */ | |
d62a17ae | 1057 | |
1058 | /* Update delay related fields */ | |
d7c0a89a | 1059 | uint8_t update_delay_over; /* When this is set, BGP is no more waiting |
d62a17ae | 1060 | for EOR */ |
1061 | ||
1062 | /* Syncronization list and time. */ | |
1063 | struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX]; | |
1064 | time_t synctime; | |
1588f6f4 QY |
1065 | /* timestamp when the last UPDATE msg was written */ |
1066 | _Atomic time_t last_write; | |
1067 | /* timestamp when the last msg was written */ | |
1068 | _Atomic time_t last_update; | |
d62a17ae | 1069 | |
1070 | /* Send prefix count. */ | |
1071 | unsigned long scount[AFI_MAX][SAFI_MAX]; | |
1072 | ||
d62a17ae | 1073 | /* Notify data. */ |
1074 | struct bgp_notify notify; | |
1075 | ||
d62a17ae | 1076 | /* Filter structure. */ |
1077 | struct bgp_filter filter[AFI_MAX][SAFI_MAX]; | |
1078 | ||
70ee29b4 PM |
1079 | /* |
1080 | * Parallel array to filter that indicates whether each filter | |
1081 | * originates from a peer-group or if it is config that is specific to | |
1082 | * this individual peer. If a filter is set independent of the | |
1083 | * peer-group the appropriate bit should be set here. If this peer is a | |
1084 | * peer-group, this memory region should be all zeros. The assumption | |
1085 | * is that the default state for all flags is unset. Due to filters | |
1086 | * having a direction (e.g. in/out/...), this array has a third | |
1087 | * dimension for storing the overrides independently per direction. | |
1088 | * | |
1089 | * Notes: | |
1090 | * - if a filter for an individual peer is unset, the corresponding | |
1091 | * override flag is unset and the peer is considered to be back in | |
1092 | * sync with the peer-group. | |
1093 | * - This does *not* contain the filter values, rather it contains | |
1094 | * whether the filter in filter (struct bgp_filter) is peer-specific. | |
1095 | */ | |
1096 | uint8_t filter_override[AFI_MAX][SAFI_MAX][(FILTER_MAX > RMAP_MAX) | |
1097 | ? FILTER_MAX | |
1098 | : RMAP_MAX]; | |
1099 | #define PEER_FT_DISTRIBUTE_LIST (1 << 0) /* distribute-list */ | |
1100 | #define PEER_FT_FILTER_LIST (1 << 1) /* filter-list */ | |
1101 | #define PEER_FT_PREFIX_LIST (1 << 2) /* prefix-list */ | |
1102 | #define PEER_FT_ROUTE_MAP (1 << 3) /* route-map */ | |
1103 | #define PEER_FT_UNSUPPRESS_MAP (1 << 4) /* unsuppress-map */ | |
1104 | ||
d62a17ae | 1105 | /* ORF Prefix-list */ |
1106 | struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX]; | |
1107 | ||
1108 | /* Text description of last attribute rcvd */ | |
1109 | char rcvd_attr_str[BUFSIZ]; | |
1110 | ||
1111 | /* Track if we printed the attribute in debugs */ | |
1112 | int rcvd_attr_printed; | |
1113 | ||
1114 | /* Prefix count. */ | |
1115 | unsigned long pcount[AFI_MAX][SAFI_MAX]; | |
1116 | ||
1117 | /* Max prefix count. */ | |
1118 | unsigned long pmax[AFI_MAX][SAFI_MAX]; | |
d7c0a89a QY |
1119 | uint8_t pmax_threshold[AFI_MAX][SAFI_MAX]; |
1120 | uint16_t pmax_restart[AFI_MAX][SAFI_MAX]; | |
e0701b79 | 1121 | #define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75 |
718e3744 | 1122 | |
d62a17ae | 1123 | /* allowas-in. */ |
1124 | char allowas_in[AFI_MAX][SAFI_MAX]; | |
ac41b2a2 | 1125 | |
d62a17ae | 1126 | /* weight */ |
1127 | unsigned long weight[AFI_MAX][SAFI_MAX]; | |
d93f7ffc | 1128 | |
d62a17ae | 1129 | /* peer reset cause */ |
1130 | char last_reset; | |
e0701b79 | 1131 | #define PEER_DOWN_RID_CHANGE 1 /* bgp router-id command */ |
1132 | #define PEER_DOWN_REMOTE_AS_CHANGE 2 /* neighbor remote-as command */ | |
1133 | #define PEER_DOWN_LOCAL_AS_CHANGE 3 /* neighbor local-as command */ | |
1134 | #define PEER_DOWN_CLID_CHANGE 4 /* bgp cluster-id command */ | |
1135 | #define PEER_DOWN_CONFED_ID_CHANGE 5 /* bgp confederation identifier command */ | |
1136 | #define PEER_DOWN_CONFED_PEER_CHANGE 6 /* bgp confederation peer command */ | |
1137 | #define PEER_DOWN_RR_CLIENT_CHANGE 7 /* neighbor route-reflector-client command */ | |
1138 | #define PEER_DOWN_RS_CLIENT_CHANGE 8 /* neighbor route-server-client command */ | |
1139 | #define PEER_DOWN_UPDATE_SOURCE_CHANGE 9 /* neighbor update-source command */ | |
1140 | #define PEER_DOWN_AF_ACTIVATE 10 /* neighbor activate command */ | |
1141 | #define PEER_DOWN_USER_SHUTDOWN 11 /* neighbor shutdown command */ | |
1142 | #define PEER_DOWN_USER_RESET 12 /* clear ip bgp command */ | |
1143 | #define PEER_DOWN_NOTIFY_RECEIVED 13 /* notification received */ | |
1144 | #define PEER_DOWN_NOTIFY_SEND 14 /* notification send */ | |
1145 | #define PEER_DOWN_CLOSE_SESSION 15 /* tcp session close */ | |
1146 | #define PEER_DOWN_NEIGHBOR_DELETE 16 /* neghbor delete */ | |
1147 | #define PEER_DOWN_RMAP_BIND 17 /* neghbor peer-group command */ | |
1148 | #define PEER_DOWN_RMAP_UNBIND 18 /* no neighbor peer-group command */ | |
1149 | #define PEER_DOWN_CAPABILITY_CHANGE 19 /* neighbor capability command */ | |
1150 | #define PEER_DOWN_PASSIVE_CHANGE 20 /* neighbor passive command */ | |
1151 | #define PEER_DOWN_MULTIHOP_CHANGE 21 /* neighbor multihop command */ | |
93406d87 | 1152 | #define PEER_DOWN_NSF_CLOSE_SESSION 22 /* NSF tcp session close */ |
8ffedcea | 1153 | #define PEER_DOWN_V6ONLY_CHANGE 23 /* if-based peering v6only toggled */ |
7bbc6864 | 1154 | #define PEER_DOWN_BFD_DOWN 24 /* BFD down */ |
e60480bd DD |
1155 | #define PEER_DOWN_IF_DOWN 25 /* Interface down */ |
1156 | #define PEER_DOWN_NBR_ADDR_DEL 26 /* Peer address lost */ | |
d62a17ae | 1157 | unsigned long last_reset_cause_size; |
d7c0a89a | 1158 | uint8_t last_reset_cause[BGP_MAX_PACKET_SIZE]; |
e0701b79 | 1159 | |
d62a17ae | 1160 | /* The kind of route-map Flags.*/ |
d7c0a89a | 1161 | uint8_t rmap_type; |
ac41b2a2 | 1162 | #define PEER_RMAP_TYPE_IN (1 << 0) /* neighbor route-map in */ |
1163 | #define PEER_RMAP_TYPE_OUT (1 << 1) /* neighbor route-map out */ | |
1164 | #define PEER_RMAP_TYPE_NETWORK (1 << 2) /* network route-map */ | |
1165 | #define PEER_RMAP_TYPE_REDISTRIBUTE (1 << 3) /* redistribute route-map */ | |
1166 | #define PEER_RMAP_TYPE_DEFAULT (1 << 4) /* default-originate route-map */ | |
1167 | #define PEER_RMAP_TYPE_NOSET (1 << 5) /* not allow to set commands */ | |
fee0f4c6 | 1168 | #define PEER_RMAP_TYPE_IMPORT (1 << 6) /* neighbor route-map import */ |
1169 | #define PEER_RMAP_TYPE_EXPORT (1 << 7) /* neighbor route-map export */ | |
6410e93a | 1170 | |
d62a17ae | 1171 | /* peer specific BFD information */ |
1172 | struct bfd_info *bfd_info; | |
04b6bdc0 | 1173 | |
d62a17ae | 1174 | /* hostname and domainname advertised by host */ |
1175 | char *hostname; | |
1176 | char *domainname; | |
19df7279 | 1177 | |
d62a17ae | 1178 | QOBJ_FIELDS |
718e3744 | 1179 | }; |
19df7279 | 1180 | DECLARE_QOBJ_TYPE(peer) |
718e3744 | 1181 | |
598ce6bd | 1182 | /* Inherit peer attribute from peer-group. */ |
e7103a96 PM |
1183 | #define PEER_ATTR_INHERIT(peer, group, attr) \ |
1184 | ((peer)->attr = (group)->conf->attr) | |
1185 | #define PEER_STR_ATTR_INHERIT(peer, group, attr, mt) \ | |
598ce6bd PM |
1186 | do { \ |
1187 | if ((peer)->attr) \ | |
1188 | XFREE(mt, (peer)->attr); \ | |
e7103a96 PM |
1189 | if ((group)->conf->attr) \ |
1190 | (peer)->attr = XSTRDUP(mt, (group)->conf->attr); \ | |
598ce6bd PM |
1191 | else \ |
1192 | (peer)->attr = NULL; \ | |
1193 | } while (0) | |
a14810f4 PM |
1194 | #define PEER_SU_ATTR_INHERIT(peer, group, attr) \ |
1195 | do { \ | |
1196 | if ((peer)->attr) \ | |
1197 | sockunion_free((peer)->attr); \ | |
1198 | if ((group)->conf->attr) \ | |
1199 | (peer)->attr = sockunion_dup((group)->conf->attr); \ | |
1200 | else \ | |
1201 | (peer)->attr = NULL; \ | |
1202 | } while (0) | |
598ce6bd | 1203 | |
ad4cbda1 | 1204 | /* Check if suppress start/restart of sessions to peer. */ |
d62a17ae | 1205 | #define BGP_PEER_START_SUPPRESSED(P) \ |
1206 | (CHECK_FLAG((P)->flags, PEER_FLAG_SHUTDOWN) \ | |
1207 | || CHECK_FLAG((P)->sflags, PEER_STATUS_PREFIX_OVERFLOW)) | |
ad4cbda1 | 1208 | |
0df7c91f PJ |
1209 | #define PEER_PASSWORD_MINLEN (1) |
1210 | #define PEER_PASSWORD_MAXLEN (80) | |
1211 | ||
718e3744 | 1212 | /* This structure's member directly points incoming packet data |
1213 | stream. */ | |
d62a17ae | 1214 | struct bgp_nlri { |
1215 | /* AFI. */ | |
a46a2e9b | 1216 | uint16_t afi; /* iana_afi_t */ |
718e3744 | 1217 | |
d62a17ae | 1218 | /* SAFI. */ |
a46a2e9b | 1219 | uint8_t safi; /* iana_safi_t */ |
718e3744 | 1220 | |
d62a17ae | 1221 | /* Pointer to NLRI byte stream. */ |
d7c0a89a | 1222 | uint8_t *nlri; |
718e3744 | 1223 | |
d62a17ae | 1224 | /* Length of whole NLRI. */ |
1225 | bgp_size_t length; | |
718e3744 | 1226 | }; |
1227 | ||
1228 | /* BGP versions. */ | |
1229 | #define BGP_VERSION_4 4 | |
718e3744 | 1230 | |
1231 | /* Default BGP port number. */ | |
1232 | #define BGP_PORT_DEFAULT 179 | |
1233 | ||
718e3744 | 1234 | /* BGP minimum message size. */ |
1235 | #define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10) | |
1236 | #define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4) | |
1237 | #define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2) | |
1238 | #define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0) | |
1239 | #define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4) | |
1240 | #define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3) | |
1241 | ||
1242 | /* BGP message types. */ | |
1243 | #define BGP_MSG_OPEN 1 | |
1244 | #define BGP_MSG_UPDATE 2 | |
1245 | #define BGP_MSG_NOTIFY 3 | |
1246 | #define BGP_MSG_KEEPALIVE 4 | |
1247 | #define BGP_MSG_ROUTE_REFRESH_NEW 5 | |
1248 | #define BGP_MSG_CAPABILITY 6 | |
1249 | #define BGP_MSG_ROUTE_REFRESH_OLD 128 | |
1250 | ||
1251 | /* BGP open optional parameter. */ | |
1252 | #define BGP_OPEN_OPT_AUTH 1 | |
1253 | #define BGP_OPEN_OPT_CAP 2 | |
1254 | ||
1255 | /* BGP4 attribute type codes. */ | |
1256 | #define BGP_ATTR_ORIGIN 1 | |
1257 | #define BGP_ATTR_AS_PATH 2 | |
1258 | #define BGP_ATTR_NEXT_HOP 3 | |
1259 | #define BGP_ATTR_MULTI_EXIT_DISC 4 | |
1260 | #define BGP_ATTR_LOCAL_PREF 5 | |
1261 | #define BGP_ATTR_ATOMIC_AGGREGATE 6 | |
1262 | #define BGP_ATTR_AGGREGATOR 7 | |
1263 | #define BGP_ATTR_COMMUNITIES 8 | |
1264 | #define BGP_ATTR_ORIGINATOR_ID 9 | |
1265 | #define BGP_ATTR_CLUSTER_LIST 10 | |
1266 | #define BGP_ATTR_DPA 11 | |
1267 | #define BGP_ATTR_ADVERTISER 12 | |
1268 | #define BGP_ATTR_RCID_PATH 13 | |
1269 | #define BGP_ATTR_MP_REACH_NLRI 14 | |
1270 | #define BGP_ATTR_MP_UNREACH_NLRI 15 | |
1271 | #define BGP_ATTR_EXT_COMMUNITIES 16 | |
0b2aa3a0 PJ |
1272 | #define BGP_ATTR_AS4_PATH 17 |
1273 | #define BGP_ATTR_AS4_AGGREGATOR 18 | |
41367172 | 1274 | #define BGP_ATTR_AS_PATHLIMIT 21 |
a21bd7a3 | 1275 | #define BGP_ATTR_PMSI_TUNNEL 22 |
f4c89855 | 1276 | #define BGP_ATTR_ENCAP 23 |
57d187bc | 1277 | #define BGP_ATTR_LARGE_COMMUNITIES 32 |
c5a543b4 | 1278 | #define BGP_ATTR_PREFIX_SID 40 |
65efcfce LB |
1279 | #if ENABLE_BGP_VNC |
1280 | #define BGP_ATTR_VNC 255 | |
1281 | #endif | |
718e3744 | 1282 | |
1283 | /* BGP update origin. */ | |
1284 | #define BGP_ORIGIN_IGP 0 | |
1285 | #define BGP_ORIGIN_EGP 1 | |
1286 | #define BGP_ORIGIN_INCOMPLETE 2 | |
1287 | ||
1288 | /* BGP notify message codes. */ | |
1289 | #define BGP_NOTIFY_HEADER_ERR 1 | |
1290 | #define BGP_NOTIFY_OPEN_ERR 2 | |
1291 | #define BGP_NOTIFY_UPDATE_ERR 3 | |
1292 | #define BGP_NOTIFY_HOLD_ERR 4 | |
1293 | #define BGP_NOTIFY_FSM_ERR 5 | |
1294 | #define BGP_NOTIFY_CEASE 6 | |
1295 | #define BGP_NOTIFY_CAPABILITY_ERR 7 | |
718e3744 | 1296 | |
4b4e07d2 DT |
1297 | #define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0 |
1298 | ||
718e3744 | 1299 | /* BGP_NOTIFY_HEADER_ERR sub codes. */ |
1300 | #define BGP_NOTIFY_HEADER_NOT_SYNC 1 | |
1301 | #define BGP_NOTIFY_HEADER_BAD_MESLEN 2 | |
1302 | #define BGP_NOTIFY_HEADER_BAD_MESTYPE 3 | |
718e3744 | 1303 | |
1304 | /* BGP_NOTIFY_OPEN_ERR sub codes. */ | |
14051b36 | 1305 | #define BGP_NOTIFY_OPEN_MALFORMED_ATTR 0 |
718e3744 | 1306 | #define BGP_NOTIFY_OPEN_UNSUP_VERSION 1 |
1307 | #define BGP_NOTIFY_OPEN_BAD_PEER_AS 2 | |
1308 | #define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3 | |
1309 | #define BGP_NOTIFY_OPEN_UNSUP_PARAM 4 | |
1310 | #define BGP_NOTIFY_OPEN_AUTH_FAILURE 5 | |
1311 | #define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6 | |
1312 | #define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7 | |
718e3744 | 1313 | |
1314 | /* BGP_NOTIFY_UPDATE_ERR sub codes. */ | |
1315 | #define BGP_NOTIFY_UPDATE_MAL_ATTR 1 | |
1316 | #define BGP_NOTIFY_UPDATE_UNREC_ATTR 2 | |
1317 | #define BGP_NOTIFY_UPDATE_MISS_ATTR 3 | |
1318 | #define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4 | |
1319 | #define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5 | |
1320 | #define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6 | |
1321 | #define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7 | |
1322 | #define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8 | |
1323 | #define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9 | |
1324 | #define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10 | |
1325 | #define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11 | |
718e3744 | 1326 | |
4b4e07d2 | 1327 | /* BGP_NOTIFY_CEASE sub codes (RFC 4486). */ |
718e3744 | 1328 | #define BGP_NOTIFY_CEASE_MAX_PREFIX 1 |
1329 | #define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2 | |
1330 | #define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3 | |
1331 | #define BGP_NOTIFY_CEASE_ADMIN_RESET 4 | |
1332 | #define BGP_NOTIFY_CEASE_CONNECT_REJECT 5 | |
1333 | #define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6 | |
545acafb | 1334 | #define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7 |
1335 | #define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8 | |
718e3744 | 1336 | |
1337 | /* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */ | |
1338 | #define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1 | |
1339 | #define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2 | |
1340 | #define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3 | |
718e3744 | 1341 | |
1342 | /* BGP finite state machine status. */ | |
1343 | #define Idle 1 | |
1344 | #define Connect 2 | |
1345 | #define Active 3 | |
1346 | #define OpenSent 4 | |
1347 | #define OpenConfirm 5 | |
1348 | #define Established 6 | |
ca058a30 PJ |
1349 | #define Clearing 7 |
1350 | #define Deleted 8 | |
1351 | #define BGP_STATUS_MAX 9 | |
718e3744 | 1352 | |
1353 | /* BGP finite state machine events. */ | |
1354 | #define BGP_Start 1 | |
1355 | #define BGP_Stop 2 | |
1356 | #define TCP_connection_open 3 | |
1357 | #define TCP_connection_closed 4 | |
1358 | #define TCP_connection_open_failed 5 | |
1359 | #define TCP_fatal_error 6 | |
1360 | #define ConnectRetry_timer_expired 7 | |
1361 | #define Hold_Timer_expired 8 | |
1362 | #define KeepAlive_timer_expired 9 | |
1363 | #define Receive_OPEN_message 10 | |
1364 | #define Receive_KEEPALIVE_message 11 | |
1365 | #define Receive_UPDATE_message 12 | |
1366 | #define Receive_NOTIFICATION_message 13 | |
ca058a30 PJ |
1367 | #define Clearing_Completed 14 |
1368 | #define BGP_EVENTS_MAX 15 | |
718e3744 | 1369 | |
1370 | /* BGP timers default value. */ | |
8efe88ea | 1371 | /* note: the DFLT_ ones depend on compile-time "defaults" selection */ |
5ca5f1c8 | 1372 | #define BGP_INIT_START_TIMER 1 |
8efe88ea DL |
1373 | #define BGP_DEFAULT_HOLDTIME DFLT_BGP_HOLDTIME |
1374 | #define BGP_DEFAULT_KEEPALIVE DFLT_BGP_KEEPALIVE | |
12179ba3 | 1375 | #define BGP_DEFAULT_EBGP_ROUTEADV 0 |
1670355a | 1376 | #define BGP_DEFAULT_IBGP_ROUTEADV 0 |
8efe88ea | 1377 | #define BGP_DEFAULT_CONNECT_RETRY DFLT_BGP_TIMERS_CONNECT |
718e3744 | 1378 | |
1379 | /* BGP default local preference. */ | |
1380 | #define BGP_DEFAULT_LOCAL_PREF 100 | |
1381 | ||
7f323236 DW |
1382 | /* BGP local-preference to send when 'bgp graceful-shutdown' |
1383 | * is configured */ | |
1384 | #define BGP_GSHUT_LOCAL_PREF 0 | |
1385 | ||
3f9c7369 DS |
1386 | /* BGP default subgroup packet queue max . */ |
1387 | #define BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX 40 | |
1388 | ||
538621f2 | 1389 | /* BGP graceful restart */ |
1390 | #define BGP_DEFAULT_RESTART_TIME 120 | |
1391 | #define BGP_DEFAULT_STALEPATH_TIME 360 | |
1392 | ||
718e3744 | 1393 | /* BGP uptime string length. */ |
1394 | #define BGP_UPTIME_LEN 25 | |
1395 | ||
1396 | /* Default configuration settings for bgpd. */ | |
1397 | #define BGP_VTY_PORT 2605 | |
718e3744 | 1398 | #define BGP_DEFAULT_CONFIG "bgpd.conf" |
1399 | ||
1400 | /* Check AS path loop when we send NLRI. */ | |
1401 | /* #define BGP_SEND_ASPATH_CHECK */ | |
1402 | ||
f14e6fdb DS |
1403 | /* BGP Dynamic Neighbors feature */ |
1404 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT 100 | |
1405 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_MIN 1 | |
1406 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_MAX 5000 | |
1407 | ||
718e3744 | 1408 | /* Flag for peer_clear_soft(). */ |
d62a17ae | 1409 | enum bgp_clear_type { |
1410 | BGP_CLEAR_SOFT_NONE, | |
1411 | BGP_CLEAR_SOFT_OUT, | |
1412 | BGP_CLEAR_SOFT_IN, | |
1413 | BGP_CLEAR_SOFT_BOTH, | |
1414 | BGP_CLEAR_SOFT_IN_ORF_PREFIX | |
718e3744 | 1415 | }; |
1416 | ||
1417 | /* Macros. */ | |
424ab01d | 1418 | #define BGP_INPUT(P) ((P)->curr) |
2d34fb80 | 1419 | #define BGP_INPUT_PNT(P) (stream_pnt(BGP_INPUT(P))) |
d62a17ae | 1420 | #define BGP_IS_VALID_STATE_FOR_NOTIF(S) \ |
1421 | (((S) == OpenSent) || ((S) == OpenConfirm) || ((S) == Established)) | |
718e3744 | 1422 | |
718e3744 | 1423 | /* BGP error codes. */ |
1424 | #define BGP_SUCCESS 0 | |
1425 | #define BGP_ERR_INVALID_VALUE -1 | |
1426 | #define BGP_ERR_INVALID_FLAG -2 | |
1427 | #define BGP_ERR_INVALID_AS -3 | |
1428 | #define BGP_ERR_INVALID_BGP -4 | |
1429 | #define BGP_ERR_PEER_GROUP_MEMBER -5 | |
1430 | #define BGP_ERR_MULTIPLE_INSTANCE_USED -6 | |
c8560b44 DW |
1431 | #define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -7 |
1432 | #define BGP_ERR_PEER_GROUP_CANT_CHANGE -8 | |
1433 | #define BGP_ERR_PEER_GROUP_MISMATCH -9 | |
1434 | #define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -10 | |
1435 | #define BGP_ERR_MULTIPLE_INSTANCE_NOT_SET -11 | |
1436 | #define BGP_ERR_AS_MISMATCH -12 | |
1437 | #define BGP_ERR_PEER_FLAG_CONFLICT -13 | |
1438 | #define BGP_ERR_PEER_GROUP_SHUTDOWN -14 | |
1439 | #define BGP_ERR_PEER_FILTER_CONFLICT -15 | |
1440 | #define BGP_ERR_NOT_INTERNAL_PEER -16 | |
1441 | #define BGP_ERR_REMOVE_PRIVATE_AS -17 | |
1442 | #define BGP_ERR_AF_UNCONFIGURED -18 | |
1443 | #define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -19 | |
1444 | #define BGP_ERR_INSTANCE_MISMATCH -20 | |
1445 | #define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -21 | |
1446 | #define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -22 | |
1447 | #define BGP_ERR_TCPSIG_FAILED -23 | |
1448 | #define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -24 | |
1449 | #define BGP_ERR_NO_IBGP_WITH_TTLHACK -25 | |
1450 | #define BGP_ERR_NO_INTERFACE_CONFIG -26 | |
1451 | #define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS -27 | |
1452 | #define BGP_ERR_AS_OVERRIDE -28 | |
1453 | #define BGP_ERR_INVALID_DYNAMIC_NEIGHBORS_LIMIT -29 | |
1454 | #define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_EXISTS -30 | |
1455 | #define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND -31 | |
1456 | #define BGP_ERR_INVALID_FOR_DYNAMIC_PEER -32 | |
1457 | #define BGP_ERR_MAX -33 | |
63fa10b5 | 1458 | #define BGP_ERR_INVALID_FOR_DIRECT_PEER -34 |
9bedbb1e | 1459 | #define BGP_ERR_PEER_SAFI_CONFLICT -35 |
718e3744 | 1460 | |
3f9c7369 DS |
1461 | /* |
1462 | * Enumeration of different policy kinds a peer can be configured with. | |
1463 | */ | |
d62a17ae | 1464 | typedef enum { |
1465 | BGP_POLICY_ROUTE_MAP, | |
1466 | BGP_POLICY_FILTER_LIST, | |
1467 | BGP_POLICY_PREFIX_LIST, | |
1468 | BGP_POLICY_DISTRIBUTE_LIST, | |
3f9c7369 DS |
1469 | } bgp_policy_type_e; |
1470 | ||
718e3744 | 1471 | extern struct bgp_master *bm; |
37fe7731 | 1472 | extern unsigned int multipath_num; |
718e3744 | 1473 | |
718e3744 | 1474 | /* Prototypes. */ |
d62a17ae | 1475 | extern void bgp_terminate(void); |
1476 | extern void bgp_reset(void); | |
1477 | extern time_t bgp_clock(void); | |
1478 | extern void bgp_zclient_reset(void); | |
1479 | extern int bgp_nexthop_set(union sockunion *, union sockunion *, | |
1480 | struct bgp_nexthop *, struct peer *); | |
1481 | extern struct bgp *bgp_get_default(void); | |
1482 | extern struct bgp *bgp_lookup(as_t, const char *); | |
1483 | extern struct bgp *bgp_lookup_by_name(const char *); | |
1484 | extern struct bgp *bgp_lookup_by_vrf_id(vrf_id_t); | |
1485 | extern struct peer *peer_lookup(struct bgp *, union sockunion *); | |
1486 | extern struct peer *peer_lookup_by_conf_if(struct bgp *, const char *); | |
04b6bdc0 | 1487 | extern struct peer *peer_lookup_by_hostname(struct bgp *, const char *); |
d62a17ae | 1488 | extern void bgp_peer_conf_if_to_su_update(struct peer *); |
ffd0c037 | 1489 | extern int peer_group_listen_range_del(struct peer_group *, struct prefix *); |
d62a17ae | 1490 | extern struct peer_group *peer_group_lookup(struct bgp *, const char *); |
1491 | extern struct peer_group *peer_group_get(struct bgp *, const char *); | |
1492 | extern struct peer *peer_create_bind_dynamic_neighbor(struct bgp *, | |
1493 | union sockunion *, | |
1494 | struct peer_group *); | |
1495 | extern struct prefix * | |
1496 | peer_group_lookup_dynamic_neighbor_range(struct peer_group *, struct prefix *); | |
1497 | extern struct peer_group *peer_group_lookup_dynamic_neighbor(struct bgp *, | |
1498 | struct prefix *, | |
1499 | struct prefix **); | |
1500 | extern struct peer *peer_lookup_dynamic_neighbor(struct bgp *, | |
1501 | union sockunion *); | |
28066f4b DS |
1502 | |
1503 | /* | |
1504 | * Peers are incredibly easy to memory leak | |
1505 | * due to the various ways that they are actually used | |
1506 | * Provide some functionality to debug locks and unlocks | |
1507 | */ | |
1508 | extern struct peer *peer_lock_with_caller(const char *, struct peer *); | |
1509 | extern struct peer *peer_unlock_with_caller(const char *, struct peer *); | |
1510 | #define peer_unlock(A) peer_unlock_with_caller(__FUNCTION__, (A)) | |
1511 | #define peer_lock(B) peer_lock_with_caller(__FUNCTION__, (B)) | |
1512 | ||
d62a17ae | 1513 | extern bgp_peer_sort_t peer_sort(struct peer *peer); |
1514 | extern int peer_active(struct peer *); | |
1515 | extern int peer_active_nego(struct peer *); | |
1516 | extern void bgp_recalculate_all_bestpaths(struct bgp *bgp); | |
a80beece | 1517 | extern struct peer *peer_create(union sockunion *, const char *, struct bgp *, |
d62a17ae | 1518 | as_t, as_t, int, afi_t, safi_t, |
1519 | struct peer_group *); | |
1520 | extern struct peer *peer_create_accept(struct bgp *); | |
1521 | extern void peer_xfer_config(struct peer *dst, struct peer *src); | |
d7c0a89a | 1522 | extern char *peer_uptime(time_t, char *, size_t, uint8_t, json_object *); |
856ca177 | 1523 | |
d62a17ae | 1524 | extern int bgp_config_write(struct vty *); |
6b0655a2 | 1525 | |
d62a17ae | 1526 | extern void bgp_master_init(struct thread_master *master); |
718e3744 | 1527 | |
d62a17ae | 1528 | extern void bgp_init(void); |
419dfe6a | 1529 | extern void bgp_pthreads_run(void); |
2d4ee774 | 1530 | extern void bgp_pthreads_finish(void); |
d62a17ae | 1531 | extern void bgp_route_map_init(void); |
1532 | extern void bgp_session_reset(struct peer *); | |
718e3744 | 1533 | |
d62a17ae | 1534 | extern int bgp_option_set(int); |
1535 | extern int bgp_option_unset(int); | |
1536 | extern int bgp_option_check(int); | |
718e3744 | 1537 | |
d62a17ae | 1538 | extern int bgp_get(struct bgp **, as_t *, const char *, enum bgp_instance_type); |
1539 | extern void bgp_instance_up(struct bgp *); | |
1540 | extern void bgp_instance_down(struct bgp *); | |
1541 | extern int bgp_delete(struct bgp *); | |
718e3744 | 1542 | |
e5619c28 PG |
1543 | extern int bgp_handle_socket(struct bgp *bgp, struct vrf *vrf, |
1544 | vrf_id_t old_vrf_id, bool create); | |
1545 | ||
d62a17ae | 1546 | extern int bgp_flag_set(struct bgp *, int); |
1547 | extern int bgp_flag_unset(struct bgp *, int); | |
1548 | extern int bgp_flag_check(struct bgp *, int); | |
718e3744 | 1549 | |
d62a17ae | 1550 | extern void bgp_router_id_zebra_bump(vrf_id_t, const struct prefix *); |
1551 | extern int bgp_router_id_static_set(struct bgp *, struct in_addr); | |
718e3744 | 1552 | |
d62a17ae | 1553 | extern int bgp_cluster_id_set(struct bgp *, struct in_addr *); |
1554 | extern int bgp_cluster_id_unset(struct bgp *); | |
718e3744 | 1555 | |
d62a17ae | 1556 | extern int bgp_confederation_id_set(struct bgp *, as_t); |
1557 | extern int bgp_confederation_id_unset(struct bgp *); | |
1558 | extern int bgp_confederation_peers_check(struct bgp *, as_t); | |
718e3744 | 1559 | |
d62a17ae | 1560 | extern int bgp_confederation_peers_add(struct bgp *, as_t); |
1561 | extern int bgp_confederation_peers_remove(struct bgp *, as_t); | |
718e3744 | 1562 | |
d7c0a89a | 1563 | extern int bgp_timers_set(struct bgp *, uint32_t keepalive, uint32_t holdtime); |
d62a17ae | 1564 | extern int bgp_timers_unset(struct bgp *); |
718e3744 | 1565 | |
d7c0a89a | 1566 | extern int bgp_default_local_preference_set(struct bgp *, uint32_t); |
d62a17ae | 1567 | extern int bgp_default_local_preference_unset(struct bgp *); |
718e3744 | 1568 | |
d7c0a89a | 1569 | extern int bgp_default_subgroup_pkt_queue_max_set(struct bgp *bgp, uint32_t); |
d62a17ae | 1570 | extern int bgp_default_subgroup_pkt_queue_max_unset(struct bgp *bgp); |
3f9c7369 | 1571 | |
d62a17ae | 1572 | extern int bgp_listen_limit_set(struct bgp *, int); |
1573 | extern int bgp_listen_limit_unset(struct bgp *); | |
f14e6fdb | 1574 | |
d62a17ae | 1575 | extern int bgp_update_delay_active(struct bgp *); |
1576 | extern int bgp_update_delay_configured(struct bgp *); | |
318cac96 | 1577 | extern int bgp_afi_safi_peer_exists(struct bgp *bgp, afi_t afi, safi_t safi); |
d62a17ae | 1578 | extern void peer_as_change(struct peer *, as_t, int); |
1579 | extern int peer_remote_as(struct bgp *, union sockunion *, const char *, as_t *, | |
1580 | int, afi_t, safi_t); | |
1581 | extern int peer_group_remote_as(struct bgp *, const char *, as_t *, int); | |
1582 | extern int peer_delete(struct peer *peer); | |
1583 | extern int peer_group_delete(struct peer_group *); | |
1584 | extern int peer_group_remote_as_delete(struct peer_group *); | |
f14e6fdb | 1585 | extern int peer_group_listen_range_add(struct peer_group *, struct prefix *); |
718e3744 | 1586 | |
d62a17ae | 1587 | extern int peer_activate(struct peer *, afi_t, safi_t); |
1588 | extern int peer_deactivate(struct peer *, afi_t, safi_t); | |
1589 | extern int peer_afc_set(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1590 | |
d62a17ae | 1591 | extern int peer_group_bind(struct bgp *, union sockunion *, struct peer *, |
1592 | struct peer_group *, as_t *); | |
1593 | extern int peer_group_unbind(struct bgp *, struct peer *, struct peer_group *); | |
718e3744 | 1594 | |
d7c0a89a QY |
1595 | extern int peer_flag_set(struct peer *, uint32_t); |
1596 | extern int peer_flag_unset(struct peer *, uint32_t); | |
9fb964de | 1597 | extern void peer_flag_inherit(struct peer *peer, uint32_t flag); |
718e3744 | 1598 | |
d7c0a89a QY |
1599 | extern int peer_af_flag_set(struct peer *, afi_t, safi_t, uint32_t); |
1600 | extern int peer_af_flag_unset(struct peer *, afi_t, safi_t, uint32_t); | |
1601 | extern int peer_af_flag_check(struct peer *, afi_t, safi_t, uint32_t); | |
cf9ac8bf PM |
1602 | extern void peer_af_flag_inherit(struct peer *peer, afi_t afi, safi_t safi, |
1603 | uint32_t flag); | |
718e3744 | 1604 | |
d62a17ae | 1605 | extern int peer_ebgp_multihop_set(struct peer *, int); |
1606 | extern int peer_ebgp_multihop_unset(struct peer *); | |
1607 | extern int is_ebgp_multihop_configured(struct peer *peer); | |
718e3744 | 1608 | |
d62a17ae | 1609 | extern int peer_description_set(struct peer *, const char *); |
1610 | extern int peer_description_unset(struct peer *); | |
718e3744 | 1611 | |
d62a17ae | 1612 | extern int peer_update_source_if_set(struct peer *, const char *); |
1613 | extern int peer_update_source_addr_set(struct peer *, const union sockunion *); | |
1614 | extern int peer_update_source_unset(struct peer *); | |
718e3744 | 1615 | |
d62a17ae | 1616 | extern int peer_default_originate_set(struct peer *, afi_t, safi_t, |
1617 | const char *); | |
1618 | extern int peer_default_originate_unset(struct peer *, afi_t, safi_t); | |
718e3744 | 1619 | |
d7c0a89a | 1620 | extern int peer_port_set(struct peer *, uint16_t); |
d62a17ae | 1621 | extern int peer_port_unset(struct peer *); |
718e3744 | 1622 | |
d7c0a89a | 1623 | extern int peer_weight_set(struct peer *, afi_t, safi_t, uint16_t); |
d62a17ae | 1624 | extern int peer_weight_unset(struct peer *, afi_t, safi_t); |
718e3744 | 1625 | |
d7c0a89a QY |
1626 | extern int peer_timers_set(struct peer *, uint32_t keepalive, |
1627 | uint32_t holdtime); | |
d62a17ae | 1628 | extern int peer_timers_unset(struct peer *); |
718e3744 | 1629 | |
d7c0a89a | 1630 | extern int peer_timers_connect_set(struct peer *, uint32_t); |
d62a17ae | 1631 | extern int peer_timers_connect_unset(struct peer *); |
718e3744 | 1632 | |
d7c0a89a | 1633 | extern int peer_advertise_interval_set(struct peer *, uint32_t); |
d62a17ae | 1634 | extern int peer_advertise_interval_unset(struct peer *); |
718e3744 | 1635 | |
d62a17ae | 1636 | extern void peer_interface_set(struct peer *, const char *); |
1637 | extern void peer_interface_unset(struct peer *); | |
718e3744 | 1638 | |
d62a17ae | 1639 | extern int peer_distribute_set(struct peer *, afi_t, safi_t, int, const char *); |
1640 | extern int peer_distribute_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1641 | |
d62a17ae | 1642 | extern int peer_allowas_in_set(struct peer *, afi_t, safi_t, int, int); |
1643 | extern int peer_allowas_in_unset(struct peer *, afi_t, safi_t); | |
718e3744 | 1644 | |
d62a17ae | 1645 | extern int peer_local_as_set(struct peer *, as_t, int, int); |
1646 | extern int peer_local_as_unset(struct peer *); | |
718e3744 | 1647 | |
d62a17ae | 1648 | extern int peer_prefix_list_set(struct peer *, afi_t, safi_t, int, |
1649 | const char *); | |
1650 | extern int peer_prefix_list_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1651 | |
d62a17ae | 1652 | extern int peer_aslist_set(struct peer *, afi_t, safi_t, int, const char *); |
1653 | extern int peer_aslist_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1654 | |
d62a17ae | 1655 | extern int peer_route_map_set(struct peer *, afi_t, safi_t, int, const char *); |
1656 | extern int peer_route_map_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1657 | |
d62a17ae | 1658 | extern int peer_unsuppress_map_set(struct peer *, afi_t, safi_t, const char *); |
0df7c91f | 1659 | |
d62a17ae | 1660 | extern int peer_password_set(struct peer *, const char *); |
1661 | extern int peer_password_unset(struct peer *); | |
0df7c91f | 1662 | |
d62a17ae | 1663 | extern int peer_unsuppress_map_unset(struct peer *, afi_t, safi_t); |
718e3744 | 1664 | |
d7c0a89a QY |
1665 | extern int peer_maximum_prefix_set(struct peer *, afi_t, safi_t, uint32_t, |
1666 | uint8_t, int, uint16_t); | |
d62a17ae | 1667 | extern int peer_maximum_prefix_unset(struct peer *, afi_t, safi_t); |
718e3744 | 1668 | |
d62a17ae | 1669 | extern int peer_clear(struct peer *, struct listnode **); |
1670 | extern int peer_clear_soft(struct peer *, afi_t, safi_t, enum bgp_clear_type); | |
93406d87 | 1671 | |
d62a17ae | 1672 | extern int peer_ttl_security_hops_set(struct peer *, int); |
1673 | extern int peer_ttl_security_hops_unset(struct peer *); | |
fa411a21 | 1674 | |
d62a17ae | 1675 | extern int peer_tx_shutdown_message_set(struct peer *, const char *msg); |
1676 | extern int peer_tx_shutdown_message_unset(struct peer *); | |
73d70fa6 | 1677 | |
d62a17ae | 1678 | extern int bgp_route_map_update_timer(struct thread *thread); |
518f0eb1 | 1679 | extern void bgp_route_map_terminate(void); |
16286195 | 1680 | |
d62a17ae | 1681 | extern int peer_cmp(struct peer *p1, struct peer *p2); |
3f9c7369 | 1682 | |
5c525538 | 1683 | extern int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi, iana_safi_t pkt_safi, |
d62a17ae | 1684 | afi_t *afi, safi_t *safi); |
1685 | extern int bgp_map_afi_safi_int2iana(afi_t afi, safi_t safi, | |
a4d82a8a PZ |
1686 | iana_afi_t *pkt_afi, |
1687 | iana_safi_t *pkt_safi); | |
9cabb64b | 1688 | |
d62a17ae | 1689 | extern struct peer_af *peer_af_create(struct peer *, afi_t, safi_t); |
1690 | extern struct peer_af *peer_af_find(struct peer *, afi_t, safi_t); | |
1691 | extern int peer_af_delete(struct peer *, afi_t, safi_t); | |
3f9c7369 | 1692 | |
ffd0c037 | 1693 | extern void bgp_close(void); |
92375c91 JB |
1694 | extern void bgp_free(struct bgp *); |
1695 | ||
1696 | static inline struct bgp *bgp_lock(struct bgp *bgp) | |
1697 | { | |
1698 | bgp->lock++; | |
1699 | return bgp; | |
1700 | } | |
1701 | ||
1702 | static inline void bgp_unlock(struct bgp *bgp) | |
1703 | { | |
1704 | assert(bgp->lock > 0); | |
1705 | if (--bgp->lock == 0) | |
1706 | bgp_free(bgp); | |
1707 | } | |
ffd0c037 | 1708 | |
d62a17ae | 1709 | static inline int afindex(afi_t afi, safi_t safi) |
3f9c7369 | 1710 | { |
d62a17ae | 1711 | switch (afi) { |
1712 | case AFI_IP: | |
1713 | switch (safi) { | |
1714 | case SAFI_UNICAST: | |
1715 | return BGP_AF_IPV4_UNICAST; | |
1716 | break; | |
1717 | case SAFI_MULTICAST: | |
1718 | return BGP_AF_IPV4_MULTICAST; | |
1719 | break; | |
1720 | case SAFI_LABELED_UNICAST: | |
1721 | return BGP_AF_IPV4_LBL_UNICAST; | |
1722 | break; | |
1723 | case SAFI_MPLS_VPN: | |
1724 | return BGP_AF_IPV4_VPN; | |
1725 | break; | |
1726 | case SAFI_ENCAP: | |
1727 | return BGP_AF_IPV4_ENCAP; | |
1728 | break; | |
7c40bf39 | 1729 | case SAFI_FLOWSPEC: |
1730 | return BGP_AF_IPV4_FLOWSPEC; | |
d62a17ae | 1731 | default: |
1732 | return BGP_AF_MAX; | |
1733 | break; | |
1734 | } | |
1735 | break; | |
1736 | case AFI_IP6: | |
1737 | switch (safi) { | |
1738 | case SAFI_UNICAST: | |
1739 | return BGP_AF_IPV6_UNICAST; | |
1740 | break; | |
1741 | case SAFI_MULTICAST: | |
1742 | return BGP_AF_IPV6_MULTICAST; | |
1743 | break; | |
1744 | case SAFI_LABELED_UNICAST: | |
1745 | return BGP_AF_IPV6_LBL_UNICAST; | |
1746 | break; | |
1747 | case SAFI_MPLS_VPN: | |
1748 | return BGP_AF_IPV6_VPN; | |
1749 | break; | |
1750 | case SAFI_ENCAP: | |
1751 | return BGP_AF_IPV6_ENCAP; | |
1752 | break; | |
7c40bf39 | 1753 | case SAFI_FLOWSPEC: |
1754 | return BGP_AF_IPV6_FLOWSPEC; | |
d62a17ae | 1755 | default: |
1756 | return BGP_AF_MAX; | |
1757 | break; | |
1758 | } | |
1759 | break; | |
1760 | case AFI_L2VPN: | |
1761 | switch (safi) { | |
1762 | case SAFI_EVPN: | |
1763 | return BGP_AF_L2VPN_EVPN; | |
1764 | break; | |
1765 | default: | |
1766 | return BGP_AF_MAX; | |
1767 | break; | |
1768 | } | |
3f9c7369 | 1769 | default: |
d62a17ae | 1770 | return BGP_AF_MAX; |
1771 | break; | |
3f9c7369 | 1772 | } |
3f9c7369 DS |
1773 | } |
1774 | ||
c8560b44 | 1775 | /* If the peer is not a peer-group but is bound to a peer-group return 1 */ |
d62a17ae | 1776 | static inline int peer_group_active(struct peer *peer) |
3f9c7369 | 1777 | { |
d62a17ae | 1778 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) && peer->group) |
1779 | return 1; | |
1780 | return 0; | |
3f9c7369 DS |
1781 | } |
1782 | ||
1783 | /* If peer is negotiated at least one address family return 1. */ | |
d62a17ae | 1784 | static inline int peer_afi_active_nego(const struct peer *peer, afi_t afi) |
3f9c7369 | 1785 | { |
d62a17ae | 1786 | if (peer->afc_nego[afi][SAFI_UNICAST] |
1787 | || peer->afc_nego[afi][SAFI_MULTICAST] | |
1788 | || peer->afc_nego[afi][SAFI_LABELED_UNICAST] | |
1789 | || peer->afc_nego[afi][SAFI_MPLS_VPN] | |
1790 | || peer->afc_nego[afi][SAFI_ENCAP] | |
7c40bf39 | 1791 | || peer->afc_nego[afi][SAFI_FLOWSPEC] |
d62a17ae | 1792 | || peer->afc_nego[afi][SAFI_EVPN]) |
1793 | return 1; | |
1794 | return 0; | |
3f9c7369 DS |
1795 | } |
1796 | ||
f14e6fdb | 1797 | /* If at least one address family activated for group, return 1. */ |
d62a17ae | 1798 | static inline int peer_group_af_configured(struct peer_group *group) |
f14e6fdb | 1799 | { |
d62a17ae | 1800 | struct peer *peer = group->conf; |
1801 | ||
1802 | if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST] | |
1803 | || peer->afc[AFI_IP][SAFI_LABELED_UNICAST] | |
7c40bf39 | 1804 | || peer->afc[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 1805 | || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP] |
1806 | || peer->afc[AFI_IP6][SAFI_UNICAST] | |
1807 | || peer->afc[AFI_IP6][SAFI_MULTICAST] | |
1808 | || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST] | |
1809 | || peer->afc[AFI_IP6][SAFI_MPLS_VPN] | |
ba0fcaf6 | 1810 | || peer->afc[AFI_IP6][SAFI_ENCAP] |
7c40bf39 | 1811 | || peer->afc[AFI_IP6][SAFI_FLOWSPEC] |
ba0fcaf6 | 1812 | || peer->afc[AFI_L2VPN][SAFI_EVPN]) |
d62a17ae | 1813 | return 1; |
1814 | return 0; | |
f14e6fdb DS |
1815 | } |
1816 | ||
d62a17ae | 1817 | static inline char *timestamp_string(time_t ts) |
3f9c7369 | 1818 | { |
d62a17ae | 1819 | time_t tbuf; |
1820 | tbuf = time(NULL) - (bgp_clock() - ts); | |
1821 | return ctime(&tbuf); | |
3f9c7369 DS |
1822 | } |
1823 | ||
d62a17ae | 1824 | static inline int peer_established(struct peer *peer) |
3f9c7369 | 1825 | { |
d62a17ae | 1826 | if (peer->status == Established) |
1827 | return 1; | |
1828 | return 0; | |
3f9c7369 DS |
1829 | } |
1830 | ||
d62a17ae | 1831 | static inline int peer_dynamic_neighbor(struct peer *peer) |
f14e6fdb | 1832 | { |
d62a17ae | 1833 | return (CHECK_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR)) ? 1 : 0; |
f14e6fdb DS |
1834 | } |
1835 | ||
d62a17ae | 1836 | static inline int peer_cap_enhe(struct peer *peer, afi_t afi, safi_t safi) |
8a92a8a0 | 1837 | { |
d62a17ae | 1838 | return (CHECK_FLAG(peer->af_cap[afi][safi], PEER_CAP_ENHE_AF_NEGO)); |
8a92a8a0 DS |
1839 | } |
1840 | ||
d1be1f08 | 1841 | /* Lookup VRF for BGP instance based on its type. */ |
d62a17ae | 1842 | static inline struct vrf *bgp_vrf_lookup_by_instance_type(struct bgp *bgp) |
d1be1f08 | 1843 | { |
d62a17ae | 1844 | struct vrf *vrf; |
d1be1f08 | 1845 | |
d62a17ae | 1846 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) |
1847 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
1848 | else if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
1849 | vrf = vrf_lookup_by_name(bgp->name); | |
1850 | else | |
1851 | vrf = NULL; | |
d1be1f08 | 1852 | |
d62a17ae | 1853 | return vrf; |
d1be1f08 | 1854 | } |
1855 | ||
1856 | /* Link BGP instance to VRF. */ | |
d62a17ae | 1857 | static inline void bgp_vrf_link(struct bgp *bgp, struct vrf *vrf) |
d1be1f08 | 1858 | { |
d62a17ae | 1859 | bgp->vrf_id = vrf->vrf_id; |
92375c91 JB |
1860 | if (vrf->info != (void *)bgp) |
1861 | vrf->info = (void *)bgp_lock(bgp); | |
d1be1f08 | 1862 | } |
1863 | ||
1864 | /* Unlink BGP instance from VRF. */ | |
d62a17ae | 1865 | static inline void bgp_vrf_unlink(struct bgp *bgp, struct vrf *vrf) |
d1be1f08 | 1866 | { |
d62a17ae | 1867 | if (vrf->info == (void *)bgp) { |
1868 | vrf->info = NULL; | |
1869 | bgp_unlock(bgp); | |
1870 | } | |
1871 | bgp->vrf_id = VRF_UNKNOWN; | |
d1be1f08 | 1872 | } |
1873 | ||
d62a17ae | 1874 | extern void bgp_update_redist_vrf_bitmaps(struct bgp *, vrf_id_t); |
65efcfce LB |
1875 | |
1876 | /* For benefit of rfapi */ | |
d62a17ae | 1877 | extern struct peer *peer_new(struct bgp *bgp); |
65efcfce | 1878 | |
00d252cb | 1879 | #endif /* _QUAGGA_BGPD_H */ |