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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 | ||
3f54c705 | 593 | /* Route map direction */ |
2a3d5731 DW |
594 | #define RMAP_IN 0 |
595 | #define RMAP_OUT 1 | |
596 | #define RMAP_MAX 2 | |
fee0f4c6 | 597 | |
65efcfce LB |
598 | #include "filter.h" |
599 | ||
718e3744 | 600 | /* BGP filter structure. */ |
d62a17ae | 601 | struct bgp_filter { |
602 | /* Distribute-list. */ | |
603 | struct { | |
604 | char *name; | |
605 | struct access_list *alist; | |
606 | } dlist[FILTER_MAX]; | |
607 | ||
608 | /* Prefix-list. */ | |
609 | struct { | |
610 | char *name; | |
611 | struct prefix_list *plist; | |
612 | } plist[FILTER_MAX]; | |
613 | ||
614 | /* Filter-list. */ | |
615 | struct { | |
616 | char *name; | |
617 | struct as_list *aslist; | |
618 | } aslist[FILTER_MAX]; | |
619 | ||
620 | /* Route-map. */ | |
621 | struct { | |
622 | char *name; | |
623 | struct route_map *map; | |
624 | } map[RMAP_MAX]; | |
625 | ||
626 | /* Unsuppress-map. */ | |
627 | struct { | |
628 | char *name; | |
629 | struct route_map *map; | |
630 | } usmap; | |
718e3744 | 631 | }; |
632 | ||
6d85b15b JBD |
633 | /* IBGP/EBGP identifier. We also have a CONFED peer, which is to say, |
634 | a peer who's AS is part of our Confederation. */ | |
d62a17ae | 635 | typedef enum { |
636 | BGP_PEER_IBGP = 1, | |
637 | BGP_PEER_EBGP, | |
638 | BGP_PEER_INTERNAL, | |
639 | BGP_PEER_CONFED, | |
6d85b15b JBD |
640 | } bgp_peer_sort_t; |
641 | ||
d6661008 DS |
642 | /* BGP message header and packet size. */ |
643 | #define BGP_MARKER_SIZE 16 | |
644 | #define BGP_HEADER_SIZE 19 | |
645 | #define BGP_MAX_PACKET_SIZE 4096 | |
0a91ff55 | 646 | #define BGP_MAX_PACKET_SIZE_OVERFLOW 1024 |
d6661008 | 647 | |
3f9c7369 DS |
648 | /* |
649 | * Trigger delay for bgp_announce_route(). | |
650 | */ | |
651 | #define BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS 100 | |
652 | #define BGP_ANNOUNCE_ROUTE_DELAY_MS 500 | |
653 | ||
d62a17ae | 654 | struct peer_af { |
655 | /* back pointer to the peer */ | |
656 | struct peer *peer; | |
3f9c7369 | 657 | |
d62a17ae | 658 | /* which subgroup the peer_af belongs to */ |
659 | struct update_subgroup *subgroup; | |
3f9c7369 | 660 | |
d62a17ae | 661 | /* for being part of an update subgroup's peer list */ |
662 | LIST_ENTRY(peer_af) subgrp_train; | |
3f9c7369 | 663 | |
d62a17ae | 664 | /* for being part of a packet's peer list */ |
665 | LIST_ENTRY(peer_af) pkt_train; | |
3f9c7369 | 666 | |
d62a17ae | 667 | struct bpacket *next_pkt_to_send; |
3f9c7369 | 668 | |
d62a17ae | 669 | /* |
670 | * Trigger timer for bgp_announce_route(). | |
671 | */ | |
672 | struct thread *t_announce_route; | |
3f9c7369 | 673 | |
d62a17ae | 674 | afi_t afi; |
675 | safi_t safi; | |
676 | int afid; | |
3f9c7369 DS |
677 | }; |
678 | ||
718e3744 | 679 | /* BGP neighbor structure. */ |
d62a17ae | 680 | struct peer { |
681 | /* BGP structure. */ | |
682 | struct bgp *bgp; | |
683 | ||
684 | /* reference count, primarily to allow bgp_process'ing of route_node's | |
685 | * to be done after a struct peer is deleted. | |
686 | * | |
687 | * named 'lock' for hysterical reasons within Quagga. | |
688 | */ | |
689 | int lock; | |
690 | ||
691 | /* BGP peer group. */ | |
692 | struct peer_group *group; | |
693 | uint64_t version[AFI_MAX][SAFI_MAX]; | |
694 | ||
695 | /* BGP peer_af structures, per configured AF on this peer */ | |
696 | struct peer_af *peer_af_array[BGP_AF_MAX]; | |
697 | ||
698 | /* Peer's remote AS number. */ | |
699 | int as_type; | |
700 | as_t as; | |
701 | ||
702 | /* Peer's local AS number. */ | |
703 | as_t local_as; | |
704 | ||
705 | bgp_peer_sort_t sort; | |
706 | ||
707 | /* Peer's Change local AS number. */ | |
708 | as_t change_local_as; | |
709 | ||
710 | /* Remote router ID. */ | |
711 | struct in_addr remote_id; | |
712 | ||
713 | /* Local router ID. */ | |
714 | struct in_addr local_id; | |
715 | ||
716 | /* Packet receive and send buffer. */ | |
424ab01d QY |
717 | pthread_mutex_t io_mtx; // guards ibuf, obuf |
718 | struct stream_fifo *ibuf; // packets waiting to be processed | |
719 | struct stream_fifo *obuf; // packets waiting to be written | |
720 | ||
74ffbfe6 QY |
721 | struct ringbuf *ibuf_work; // WiP buffer used by bgp_read() only |
722 | struct stream *obuf_work; // WiP buffer used to construct packets | |
424ab01d QY |
723 | |
724 | struct stream *curr; // the current packet being parsed | |
d62a17ae | 725 | |
726 | /* We use a separate stream to encode MP_REACH_NLRI for efficient | |
424ab01d | 727 | * NLRI packing. peer->obuf_work stores all the other attributes. The |
d62a17ae | 728 | * actual packet is then constructed by concatenating the two. |
729 | */ | |
730 | struct stream *scratch; | |
731 | ||
732 | /* the doppelganger peer structure, due to dual TCP conn setup */ | |
733 | struct peer *doppelganger; | |
734 | ||
735 | /* Status of the peer. */ | |
736 | int status; | |
737 | int ostatus; | |
738 | ||
739 | /* FSM events, stored for debug purposes. | |
740 | * Note: uchar used for reduced memory usage. | |
741 | */ | |
742 | unsigned char cur_event; | |
743 | unsigned char last_event; | |
744 | unsigned char last_major_event; | |
745 | ||
746 | /* Peer index, used for dumping TABLE_DUMP_V2 format */ | |
747 | uint16_t table_dump_index; | |
748 | ||
749 | /* Peer information */ | |
750 | int fd; /* File descriptor */ | |
751 | int ttl; /* TTL of TCP connection to the peer. */ | |
752 | int rtt; /* Estimated round-trip-time from TCP_INFO */ | |
753 | int gtsm_hops; /* minimum hopcount to peer */ | |
754 | char *desc; /* Description of the peer. */ | |
755 | unsigned short port; /* Destination port for peer */ | |
756 | char *host; /* Printable address of the peer. */ | |
757 | union sockunion su; /* Sockunion address of the peer. */ | |
a80beece | 758 | #define BGP_PEER_SU_UNSPEC(peer) (peer->su.sa.sa_family == AF_UNSPEC) |
d62a17ae | 759 | time_t uptime; /* Last Up/Down time */ |
760 | time_t readtime; /* Last read time */ | |
761 | time_t resettime; /* Last reset time */ | |
762 | ||
d62a17ae | 763 | char *conf_if; /* neighbor interface config name. */ |
764 | struct interface *ifp; /* corresponding interface */ | |
765 | char *ifname; /* bind interface name. */ | |
766 | char *update_if; | |
767 | union sockunion *update_source; | |
768 | ||
769 | union sockunion *su_local; /* Sockunion of local address. */ | |
770 | union sockunion *su_remote; /* Sockunion of remote address. */ | |
771 | int shared_network; /* Is this peer shared same network. */ | |
772 | struct bgp_nexthop nexthop; /* Nexthop */ | |
773 | ||
774 | /* Peer address family configuration. */ | |
d7c0a89a QY |
775 | uint8_t afc[AFI_MAX][SAFI_MAX]; |
776 | uint8_t afc_nego[AFI_MAX][SAFI_MAX]; | |
777 | uint8_t afc_adv[AFI_MAX][SAFI_MAX]; | |
778 | uint8_t afc_recv[AFI_MAX][SAFI_MAX]; | |
d62a17ae | 779 | |
780 | /* Capability flags (reset in bgp_stop) */ | |
d7c0a89a | 781 | uint32_t cap; |
718e3744 | 782 | #define PEER_CAP_REFRESH_ADV (1 << 0) /* refresh advertised */ |
783 | #define PEER_CAP_REFRESH_OLD_RCV (1 << 1) /* refresh old received */ | |
784 | #define PEER_CAP_REFRESH_NEW_RCV (1 << 2) /* refresh rfc received */ | |
785 | #define PEER_CAP_DYNAMIC_ADV (1 << 3) /* dynamic advertised */ | |
786 | #define PEER_CAP_DYNAMIC_RCV (1 << 4) /* dynamic received */ | |
538621f2 | 787 | #define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */ |
788 | #define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */ | |
0b2aa3a0 PJ |
789 | #define PEER_CAP_AS4_ADV (1 << 7) /* as4 advertised */ |
790 | #define PEER_CAP_AS4_RCV (1 << 8) /* as4 received */ | |
fe7d2a48 DS |
791 | #define PEER_CAP_RESTART_BIT_ADV (1 << 9) /* sent restart state */ |
792 | #define PEER_CAP_RESTART_BIT_RCV (1 << 10) /* peer restart state */ | |
a82478b9 DS |
793 | #define PEER_CAP_ADDPATH_ADV (1 << 11) /* addpath advertised */ |
794 | #define PEER_CAP_ADDPATH_RCV (1 << 12) /* addpath received */ | |
c744aa9f DS |
795 | #define PEER_CAP_ENHE_ADV (1 << 13) /* Extended nexthop advertised */ |
796 | #define PEER_CAP_ENHE_RCV (1 << 14) /* Extended nexthop received */ | |
04b6bdc0 DW |
797 | #define PEER_CAP_HOSTNAME_ADV (1 << 15) /* hostname advertised */ |
798 | #define PEER_CAP_HOSTNAME_RCV (1 << 16) /* hostname received */ | |
718e3744 | 799 | |
d62a17ae | 800 | /* Capability flags (reset in bgp_stop) */ |
d7c0a89a | 801 | uint32_t af_cap[AFI_MAX][SAFI_MAX]; |
718e3744 | 802 | #define PEER_CAP_ORF_PREFIX_SM_ADV (1 << 0) /* send-mode advertised */ |
803 | #define PEER_CAP_ORF_PREFIX_RM_ADV (1 << 1) /* receive-mode advertised */ | |
804 | #define PEER_CAP_ORF_PREFIX_SM_RCV (1 << 2) /* send-mode received */ | |
805 | #define PEER_CAP_ORF_PREFIX_RM_RCV (1 << 3) /* receive-mode received */ | |
806 | #define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1 << 4) /* send-mode received */ | |
807 | #define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1 << 5) /* receive-mode received */ | |
93406d87 | 808 | #define PEER_CAP_RESTART_AF_RCV (1 << 6) /* graceful restart afi/safi received */ |
809 | #define PEER_CAP_RESTART_AF_PRESERVE_RCV (1 << 7) /* graceful restart afi/safi F-bit received */ | |
a82478b9 DS |
810 | #define PEER_CAP_ADDPATH_AF_TX_ADV (1 << 8) /* addpath tx advertised */ |
811 | #define PEER_CAP_ADDPATH_AF_TX_RCV (1 << 9) /* addpath tx received */ | |
812 | #define PEER_CAP_ADDPATH_AF_RX_ADV (1 << 10) /* addpath rx advertised */ | |
813 | #define PEER_CAP_ADDPATH_AF_RX_RCV (1 << 11) /* addpath rx received */ | |
8a92a8a0 DS |
814 | #define PEER_CAP_ENHE_AF_ADV (1 << 12) /* Extended nexthopi afi/safi advertised */ |
815 | #define PEER_CAP_ENHE_AF_RCV (1 << 13) /* Extended nexthop afi/safi received */ | |
816 | #define PEER_CAP_ENHE_AF_NEGO (1 << 14) /* Extended nexthop afi/safi negotiated */ | |
718e3744 | 817 | |
d62a17ae | 818 | /* Global configuration flags. */ |
9fb964de PM |
819 | /* |
820 | * Parallel array to flags that indicates whether each flag originates | |
821 | * from a peer-group or if it is config that is specific to this | |
822 | * individual peer. If a flag is set independent of the peer-group, the | |
823 | * same bit should be set here. If this peer is a peer-group, this | |
824 | * memory region should be all zeros. | |
825 | * | |
826 | * The assumption is that the default state for all flags is unset, | |
827 | * so if a flag is unset, the corresponding override flag is unset too. | |
828 | * However if a flag is set, the corresponding override flag is set. | |
829 | */ | |
830 | uint32_t flags_override; | |
831 | /* | |
832 | * Parallel array to flags that indicates whether the default behavior | |
833 | * of *flags_override* should be inverted. If a flag is unset and the | |
834 | * corresponding invert flag is set, the corresponding override flag | |
835 | * would be set. However if a flag is set and the corresponding invert | |
836 | * flag is unset, the corresponding override flag would be unset. | |
837 | * | |
838 | * This can be used for attributes like *send-community*, which are | |
839 | * implicitely enabled and have to be disabled explicitely, compared to | |
840 | * 'normal' attributes like *next-hop-self* which are implicitely set. | |
841 | * | |
842 | * All operations dealing with flags should apply the following boolean | |
843 | * logic to keep the internal flag system in a sane state: | |
844 | * | |
845 | * value=0 invert=0 Inherit flag if member, otherwise unset flag | |
846 | * value=0 invert=1 Unset flag unconditionally | |
847 | * value=1 invert=0 Set flag unconditionally | |
848 | * value=1 invert=1 Inherit flag if member, otherwise set flag | |
849 | * | |
850 | * Contrary to the implementation of *flags_override*, the flag | |
851 | * inversion state can be set either on the peer OR the peer *and* the | |
852 | * peer-group. This was done on purpose, as the inversion state of a | |
853 | * flag can be determined on either the peer or the peer-group. | |
854 | * | |
855 | * Example: Enabling the cisco configuration mode inverts all flags | |
856 | * related to *send-community* unconditionally for both peer-groups and | |
857 | * peers. | |
858 | * | |
859 | * This behavior is different for interface peers though, which enable | |
860 | * the *extended-nexthop* flag by default, which regular peers do not. | |
861 | * As the peer-group can contain both regular and interface peers, the | |
862 | * flag inversion state must be set on the peer only. | |
863 | * | |
864 | * When a peer inherits the configuration from a peer-group and the | |
865 | * inversion state of the flag differs between peer and peer-group, the | |
866 | * newly set value must equal to the inverted state of the peer-group. | |
867 | */ | |
868 | uint32_t flags_invert; | |
869 | /* | |
870 | * Effective array for storing the peer/peer-group flags. In case of a | |
871 | * peer-group, the peer-specific overrides (see flags_override and | |
872 | * flags_invert) must be respected. | |
873 | */ | |
d7c0a89a | 874 | uint32_t flags; |
718e3744 | 875 | #define PEER_FLAG_PASSIVE (1 << 0) /* passive mode */ |
876 | #define PEER_FLAG_SHUTDOWN (1 << 1) /* shutdown */ | |
877 | #define PEER_FLAG_DONT_CAPABILITY (1 << 2) /* dont-capability */ | |
878 | #define PEER_FLAG_OVERRIDE_CAPABILITY (1 << 3) /* override-capability */ | |
879 | #define PEER_FLAG_STRICT_CAP_MATCH (1 << 4) /* strict-match */ | |
c9502438 | 880 | #define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 5) /* dynamic capability */ |
6ffd2079 | 881 | #define PEER_FLAG_DISABLE_CONNECTED_CHECK (1 << 6) /* disable-connected-check */ |
c9502438 | 882 | #define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 7) /* local-as no-prepend */ |
9d3f9705 | 883 | #define PEER_FLAG_LOCAL_AS_REPLACE_AS (1 << 8) /* local-as no-prepend replace-as */ |
47cbc09b PM |
884 | #define PEER_FLAG_DELETE (1 << 9) /* mark the peer for deleting */ |
885 | #define PEER_FLAG_CONFIG_NODE (1 << 10) /* the node to update configs on */ | |
7f342629 DS |
886 | #define PEER_FLAG_LONESOUL (1 << 11) |
887 | #define PEER_FLAG_DYNAMIC_NEIGHBOR (1 << 12) /* dynamic neighbor */ | |
888 | #define PEER_FLAG_CAPABILITY_ENHE (1 << 13) /* Extended next-hop (rfc 5549)*/ | |
88177fe3 | 889 | #define PEER_FLAG_IFPEER_V6ONLY (1 << 14) /* if-based peer is v6 only */ |
47cbc09b PM |
890 | #define PEER_FLAG_IS_RFAPI_HD (1 << 15) /* attached to rfapi HD */ |
891 | #define PEER_FLAG_ENFORCE_FIRST_AS (1 << 16) /* enforce-first-as */ | |
b90a8e13 PM |
892 | #define PEER_FLAG_ROUTEADV (1 << 17) /* route advertise */ |
893 | #define PEER_FLAG_TIMER (1 << 18) /* keepalive & holdtime */ | |
894 | #define PEER_FLAG_TIMER_CONNECT (1 << 19) /* connect timer */ | |
a14810f4 PM |
895 | #define PEER_FLAG_PASSWORD (1 << 20) /* password */ |
896 | #define PEER_FLAG_LOCAL_AS (1 << 21) /* local-as */ | |
897 | #define PEER_FLAG_UPDATE_SOURCE (1 << 22) /* update-source */ | |
02a82b47 | 898 | |
d62a17ae | 899 | /* outgoing message sent in CEASE_ADMIN_SHUTDOWN notify */ |
900 | char *tx_shutdown_message; | |
718e3744 | 901 | |
d62a17ae | 902 | /* NSF mode (graceful restart) */ |
d7c0a89a | 903 | uint8_t nsf[AFI_MAX][SAFI_MAX]; |
93406d87 | 904 | |
04e1c5bb QY |
905 | /* Peer Per AF flags */ |
906 | /* | |
9fb964de PM |
907 | * Please consult the comments for *flags_override*, *flags_invert* and |
908 | * *flags* to understand what these three arrays do. The address-family | |
909 | * specific attributes are being treated the exact same way as global | |
910 | * peer attributes. | |
04e1c5bb QY |
911 | */ |
912 | uint32_t af_flags_override[AFI_MAX][SAFI_MAX]; | |
27c05d4d | 913 | uint32_t af_flags_invert[AFI_MAX][SAFI_MAX]; |
d7c0a89a | 914 | uint32_t af_flags[AFI_MAX][SAFI_MAX]; |
718e3744 | 915 | #define PEER_FLAG_SEND_COMMUNITY (1 << 0) /* send-community */ |
916 | #define PEER_FLAG_SEND_EXT_COMMUNITY (1 << 1) /* send-community ext. */ | |
917 | #define PEER_FLAG_NEXTHOP_SELF (1 << 2) /* next-hop-self */ | |
918 | #define PEER_FLAG_REFLECTOR_CLIENT (1 << 3) /* reflector-client */ | |
919 | #define PEER_FLAG_RSERVER_CLIENT (1 << 4) /* route-server-client */ | |
920 | #define PEER_FLAG_SOFT_RECONFIG (1 << 5) /* soft-reconfiguration */ | |
921 | #define PEER_FLAG_AS_PATH_UNCHANGED (1 << 6) /* transparent-as */ | |
922 | #define PEER_FLAG_NEXTHOP_UNCHANGED (1 << 7) /* transparent-next-hop */ | |
923 | #define PEER_FLAG_MED_UNCHANGED (1 << 8) /* transparent-next-hop */ | |
924 | #define PEER_FLAG_DEFAULT_ORIGINATE (1 << 9) /* default-originate */ | |
925 | #define PEER_FLAG_REMOVE_PRIVATE_AS (1 << 10) /* remove-private-as */ | |
926 | #define PEER_FLAG_ALLOWAS_IN (1 << 11) /* set allowas-in */ | |
927 | #define PEER_FLAG_ORF_PREFIX_SM (1 << 12) /* orf capability send-mode */ | |
928 | #define PEER_FLAG_ORF_PREFIX_RM (1 << 13) /* orf capability receive-mode */ | |
929 | #define PEER_FLAG_MAX_PREFIX (1 << 14) /* maximum prefix */ | |
930 | #define PEER_FLAG_MAX_PREFIX_WARNING (1 << 15) /* maximum prefix warning-only */ | |
0df7c91f | 931 | #define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1 << 16) /* leave link-local nexthop unchanged */ |
a538debe | 932 | #define PEER_FLAG_FORCE_NEXTHOP_SELF (1 << 17) /* next-hop-self force */ |
5000f21c DS |
933 | #define PEER_FLAG_REMOVE_PRIVATE_AS_ALL (1 << 18) /* remove-private-as all */ |
934 | #define PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE (1 << 19) /* remove-private-as replace-as */ | |
c7122e14 | 935 | #define PEER_FLAG_AS_OVERRIDE (1 << 20) /* as-override */ |
88b8ed8d | 936 | #define PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE (1 << 21) /* remove-private-as all replace-as */ |
adbac85e | 937 | #define PEER_FLAG_ADDPATH_TX_ALL_PATHS (1 << 22) /* addpath-tx-all-paths */ |
06370dac | 938 | #define PEER_FLAG_ADDPATH_TX_BESTPATH_PER_AS (1 << 23) /* addpath-tx-bestpath-per-AS */ |
d93f7ffc | 939 | #define PEER_FLAG_WEIGHT (1 << 24) /* weight */ |
aac9ef6c | 940 | #define PEER_FLAG_ALLOWAS_IN_ORIGIN (1 << 25) /* allowas-in origin */ |
57d187bc | 941 | #define PEER_FLAG_SEND_LARGE_COMMUNITY (1 << 26) /* Send large Communities */ |
0df7c91f | 942 | |
d62a17ae | 943 | /* MD5 password */ |
944 | char *password; | |
718e3744 | 945 | |
d62a17ae | 946 | /* default-originate route-map. */ |
947 | struct { | |
948 | char *name; | |
949 | struct route_map *map; | |
950 | } default_rmap[AFI_MAX][SAFI_MAX]; | |
718e3744 | 951 | |
d62a17ae | 952 | /* Peer status flags. */ |
d7c0a89a | 953 | uint16_t sflags; |
718e3744 | 954 | #define PEER_STATUS_ACCEPT_PEER (1 << 0) /* accept peer */ |
955 | #define PEER_STATUS_PREFIX_OVERFLOW (1 << 1) /* prefix-overflow */ | |
956 | #define PEER_STATUS_CAPABILITY_OPEN (1 << 2) /* capability open send */ | |
957 | #define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */ | |
958 | #define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */ | |
93406d87 | 959 | #define PEER_STATUS_NSF_MODE (1 << 5) /* NSF aware peer */ |
960 | #define PEER_STATUS_NSF_WAIT (1 << 6) /* wait comeback peer */ | |
718e3744 | 961 | |
d62a17ae | 962 | /* Peer status af flags (reset in bgp_stop) */ |
d7c0a89a | 963 | uint16_t af_sflags[AFI_MAX][SAFI_MAX]; |
718e3744 | 964 | #define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */ |
965 | #define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */ | |
840fced9 DS |
966 | #define PEER_STATUS_PREFIX_THRESHOLD (1 << 2) /* exceed prefix-threshold */ |
967 | #define PEER_STATUS_PREFIX_LIMIT (1 << 3) /* exceed prefix-limit */ | |
968 | #define PEER_STATUS_EOR_SEND (1 << 4) /* end-of-rib send to peer */ | |
969 | #define PEER_STATUS_EOR_RECEIVED (1 << 5) /* end-of-rib received from peer */ | |
e0701b79 | 970 | |
b90a8e13 | 971 | /* Configured timer values. */ |
1588f6f4 QY |
972 | _Atomic uint32_t holdtime; |
973 | _Atomic uint32_t keepalive; | |
974 | _Atomic uint32_t connect; | |
975 | _Atomic uint32_t routeadv; | |
d62a17ae | 976 | |
977 | /* Timer values. */ | |
1588f6f4 QY |
978 | _Atomic uint32_t v_start; |
979 | _Atomic uint32_t v_connect; | |
980 | _Atomic uint32_t v_holdtime; | |
981 | _Atomic uint32_t v_keepalive; | |
982 | _Atomic uint32_t v_routeadv; | |
983 | _Atomic uint32_t v_pmax_restart; | |
984 | _Atomic uint32_t v_gr_restart; | |
d62a17ae | 985 | |
986 | /* Threads. */ | |
987 | struct thread *t_read; | |
424ab01d | 988 | struct thread *t_write; |
d62a17ae | 989 | struct thread *t_start; |
387f984e QY |
990 | struct thread *t_connect_check_r; |
991 | struct thread *t_connect_check_w; | |
d62a17ae | 992 | struct thread *t_connect; |
993 | struct thread *t_holdtime; | |
d62a17ae | 994 | struct thread *t_routeadv; |
995 | struct thread *t_pmax_restart; | |
996 | struct thread *t_gr_restart; | |
997 | struct thread *t_gr_stale; | |
56257a44 | 998 | struct thread *t_generate_updgrp_packets; |
424ab01d | 999 | struct thread *t_process_packet; |
d62a17ae | 1000 | |
49507a6f | 1001 | /* Thread flags. */ |
1588f6f4 | 1002 | _Atomic uint16_t thread_flags; |
b750b0ba QY |
1003 | #define PEER_THREAD_WRITES_ON (1 << 0) |
1004 | #define PEER_THREAD_READS_ON (1 << 1) | |
1005 | #define PEER_THREAD_KEEPALIVES_ON (1 << 2) | |
d62a17ae | 1006 | /* workqueues */ |
1007 | struct work_queue *clear_node_queue; | |
1008 | ||
a4d82a8a PZ |
1009 | #define PEER_TOTAL_RX(peer) \ |
1010 | atomic_load_explicit(&peer->open_in, memory_order_relaxed) \ | |
1011 | + atomic_load_explicit(&peer->update_in, memory_order_relaxed) \ | |
1012 | + atomic_load_explicit(&peer->notify_in, memory_order_relaxed) \ | |
1013 | + atomic_load_explicit(&peer->refresh_in, \ | |
1014 | memory_order_relaxed) \ | |
1015 | + atomic_load_explicit(&peer->keepalive_in, \ | |
1016 | memory_order_relaxed) \ | |
1017 | + atomic_load_explicit(&peer->dynamic_cap_in, \ | |
1018 | memory_order_relaxed) | |
1019 | ||
1020 | #define PEER_TOTAL_TX(peer) \ | |
1021 | atomic_load_explicit(&peer->open_out, memory_order_relaxed) \ | |
1022 | + atomic_load_explicit(&peer->update_out, \ | |
1023 | memory_order_relaxed) \ | |
1024 | + atomic_load_explicit(&peer->notify_out, \ | |
1025 | memory_order_relaxed) \ | |
1026 | + atomic_load_explicit(&peer->refresh_out, \ | |
1027 | memory_order_relaxed) \ | |
1028 | + atomic_load_explicit(&peer->keepalive_out, \ | |
1029 | memory_order_relaxed) \ | |
1030 | + atomic_load_explicit(&peer->dynamic_cap_out, \ | |
1031 | memory_order_relaxed) | |
0112e9e0 | 1032 | |
d62a17ae | 1033 | /* Statistics field */ |
996c9314 LB |
1034 | _Atomic uint32_t open_in; /* Open message input count */ |
1035 | _Atomic uint32_t open_out; /* Open message output count */ | |
1588f6f4 QY |
1036 | _Atomic uint32_t update_in; /* Update message input count */ |
1037 | _Atomic uint32_t update_out; /* Update message ouput count */ | |
1038 | _Atomic time_t update_time; /* Update message received time. */ | |
1039 | _Atomic uint32_t keepalive_in; /* Keepalive input count */ | |
1040 | _Atomic uint32_t keepalive_out; /* Keepalive output count */ | |
1041 | _Atomic uint32_t notify_in; /* Notify input count */ | |
1042 | _Atomic uint32_t notify_out; /* Notify output count */ | |
1043 | _Atomic uint32_t refresh_in; /* Route Refresh input count */ | |
1044 | _Atomic uint32_t refresh_out; /* Route Refresh output count */ | |
1045 | _Atomic uint32_t dynamic_cap_in; /* Dynamic Capability input count. */ | |
a4d82a8a | 1046 | _Atomic uint32_t dynamic_cap_out; /* Dynamic Capability output count. */ |
d62a17ae | 1047 | |
1048 | /* BGP state count */ | |
d7c0a89a QY |
1049 | uint32_t established; /* Established */ |
1050 | uint32_t dropped; /* Dropped */ | |
d62a17ae | 1051 | |
1052 | /* Update delay related fields */ | |
d7c0a89a | 1053 | uint8_t update_delay_over; /* When this is set, BGP is no more waiting |
d62a17ae | 1054 | for EOR */ |
1055 | ||
1056 | /* Syncronization list and time. */ | |
1057 | struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX]; | |
1058 | time_t synctime; | |
1588f6f4 QY |
1059 | /* timestamp when the last UPDATE msg was written */ |
1060 | _Atomic time_t last_write; | |
1061 | /* timestamp when the last msg was written */ | |
1062 | _Atomic time_t last_update; | |
d62a17ae | 1063 | |
1064 | /* Send prefix count. */ | |
1065 | unsigned long scount[AFI_MAX][SAFI_MAX]; | |
1066 | ||
d62a17ae | 1067 | /* Notify data. */ |
1068 | struct bgp_notify notify; | |
1069 | ||
d62a17ae | 1070 | /* Filter structure. */ |
1071 | struct bgp_filter filter[AFI_MAX][SAFI_MAX]; | |
1072 | ||
70ee29b4 PM |
1073 | /* |
1074 | * Parallel array to filter that indicates whether each filter | |
1075 | * originates from a peer-group or if it is config that is specific to | |
1076 | * this individual peer. If a filter is set independent of the | |
1077 | * peer-group the appropriate bit should be set here. If this peer is a | |
1078 | * peer-group, this memory region should be all zeros. The assumption | |
1079 | * is that the default state for all flags is unset. Due to filters | |
1080 | * having a direction (e.g. in/out/...), this array has a third | |
1081 | * dimension for storing the overrides independently per direction. | |
1082 | * | |
1083 | * Notes: | |
1084 | * - if a filter for an individual peer is unset, the corresponding | |
1085 | * override flag is unset and the peer is considered to be back in | |
1086 | * sync with the peer-group. | |
1087 | * - This does *not* contain the filter values, rather it contains | |
1088 | * whether the filter in filter (struct bgp_filter) is peer-specific. | |
1089 | */ | |
1090 | uint8_t filter_override[AFI_MAX][SAFI_MAX][(FILTER_MAX > RMAP_MAX) | |
1091 | ? FILTER_MAX | |
1092 | : RMAP_MAX]; | |
1093 | #define PEER_FT_DISTRIBUTE_LIST (1 << 0) /* distribute-list */ | |
1094 | #define PEER_FT_FILTER_LIST (1 << 1) /* filter-list */ | |
1095 | #define PEER_FT_PREFIX_LIST (1 << 2) /* prefix-list */ | |
1096 | #define PEER_FT_ROUTE_MAP (1 << 3) /* route-map */ | |
1097 | #define PEER_FT_UNSUPPRESS_MAP (1 << 4) /* unsuppress-map */ | |
1098 | ||
d62a17ae | 1099 | /* ORF Prefix-list */ |
1100 | struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX]; | |
1101 | ||
1102 | /* Text description of last attribute rcvd */ | |
1103 | char rcvd_attr_str[BUFSIZ]; | |
1104 | ||
1105 | /* Track if we printed the attribute in debugs */ | |
1106 | int rcvd_attr_printed; | |
1107 | ||
1108 | /* Prefix count. */ | |
1109 | unsigned long pcount[AFI_MAX][SAFI_MAX]; | |
1110 | ||
1111 | /* Max prefix count. */ | |
1112 | unsigned long pmax[AFI_MAX][SAFI_MAX]; | |
d7c0a89a QY |
1113 | uint8_t pmax_threshold[AFI_MAX][SAFI_MAX]; |
1114 | uint16_t pmax_restart[AFI_MAX][SAFI_MAX]; | |
e0701b79 | 1115 | #define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75 |
718e3744 | 1116 | |
d62a17ae | 1117 | /* allowas-in. */ |
1118 | char allowas_in[AFI_MAX][SAFI_MAX]; | |
ac41b2a2 | 1119 | |
d62a17ae | 1120 | /* weight */ |
1121 | unsigned long weight[AFI_MAX][SAFI_MAX]; | |
d93f7ffc | 1122 | |
d62a17ae | 1123 | /* peer reset cause */ |
1124 | char last_reset; | |
e0701b79 | 1125 | #define PEER_DOWN_RID_CHANGE 1 /* bgp router-id command */ |
1126 | #define PEER_DOWN_REMOTE_AS_CHANGE 2 /* neighbor remote-as command */ | |
1127 | #define PEER_DOWN_LOCAL_AS_CHANGE 3 /* neighbor local-as command */ | |
1128 | #define PEER_DOWN_CLID_CHANGE 4 /* bgp cluster-id command */ | |
1129 | #define PEER_DOWN_CONFED_ID_CHANGE 5 /* bgp confederation identifier command */ | |
1130 | #define PEER_DOWN_CONFED_PEER_CHANGE 6 /* bgp confederation peer command */ | |
1131 | #define PEER_DOWN_RR_CLIENT_CHANGE 7 /* neighbor route-reflector-client command */ | |
1132 | #define PEER_DOWN_RS_CLIENT_CHANGE 8 /* neighbor route-server-client command */ | |
1133 | #define PEER_DOWN_UPDATE_SOURCE_CHANGE 9 /* neighbor update-source command */ | |
1134 | #define PEER_DOWN_AF_ACTIVATE 10 /* neighbor activate command */ | |
1135 | #define PEER_DOWN_USER_SHUTDOWN 11 /* neighbor shutdown command */ | |
1136 | #define PEER_DOWN_USER_RESET 12 /* clear ip bgp command */ | |
1137 | #define PEER_DOWN_NOTIFY_RECEIVED 13 /* notification received */ | |
1138 | #define PEER_DOWN_NOTIFY_SEND 14 /* notification send */ | |
1139 | #define PEER_DOWN_CLOSE_SESSION 15 /* tcp session close */ | |
1140 | #define PEER_DOWN_NEIGHBOR_DELETE 16 /* neghbor delete */ | |
1141 | #define PEER_DOWN_RMAP_BIND 17 /* neghbor peer-group command */ | |
1142 | #define PEER_DOWN_RMAP_UNBIND 18 /* no neighbor peer-group command */ | |
1143 | #define PEER_DOWN_CAPABILITY_CHANGE 19 /* neighbor capability command */ | |
1144 | #define PEER_DOWN_PASSIVE_CHANGE 20 /* neighbor passive command */ | |
1145 | #define PEER_DOWN_MULTIHOP_CHANGE 21 /* neighbor multihop command */ | |
93406d87 | 1146 | #define PEER_DOWN_NSF_CLOSE_SESSION 22 /* NSF tcp session close */ |
8ffedcea | 1147 | #define PEER_DOWN_V6ONLY_CHANGE 23 /* if-based peering v6only toggled */ |
7bbc6864 | 1148 | #define PEER_DOWN_BFD_DOWN 24 /* BFD down */ |
e60480bd DD |
1149 | #define PEER_DOWN_IF_DOWN 25 /* Interface down */ |
1150 | #define PEER_DOWN_NBR_ADDR_DEL 26 /* Peer address lost */ | |
d62a17ae | 1151 | unsigned long last_reset_cause_size; |
d7c0a89a | 1152 | uint8_t last_reset_cause[BGP_MAX_PACKET_SIZE]; |
e0701b79 | 1153 | |
d62a17ae | 1154 | /* The kind of route-map Flags.*/ |
d7c0a89a | 1155 | uint8_t rmap_type; |
ac41b2a2 | 1156 | #define PEER_RMAP_TYPE_IN (1 << 0) /* neighbor route-map in */ |
1157 | #define PEER_RMAP_TYPE_OUT (1 << 1) /* neighbor route-map out */ | |
1158 | #define PEER_RMAP_TYPE_NETWORK (1 << 2) /* network route-map */ | |
1159 | #define PEER_RMAP_TYPE_REDISTRIBUTE (1 << 3) /* redistribute route-map */ | |
1160 | #define PEER_RMAP_TYPE_DEFAULT (1 << 4) /* default-originate route-map */ | |
1161 | #define PEER_RMAP_TYPE_NOSET (1 << 5) /* not allow to set commands */ | |
fee0f4c6 | 1162 | #define PEER_RMAP_TYPE_IMPORT (1 << 6) /* neighbor route-map import */ |
1163 | #define PEER_RMAP_TYPE_EXPORT (1 << 7) /* neighbor route-map export */ | |
6410e93a | 1164 | |
d62a17ae | 1165 | /* peer specific BFD information */ |
1166 | struct bfd_info *bfd_info; | |
04b6bdc0 | 1167 | |
d62a17ae | 1168 | /* hostname and domainname advertised by host */ |
1169 | char *hostname; | |
1170 | char *domainname; | |
19df7279 | 1171 | |
d62a17ae | 1172 | QOBJ_FIELDS |
718e3744 | 1173 | }; |
19df7279 | 1174 | DECLARE_QOBJ_TYPE(peer) |
718e3744 | 1175 | |
598ce6bd | 1176 | /* Inherit peer attribute from peer-group. */ |
e7103a96 PM |
1177 | #define PEER_ATTR_INHERIT(peer, group, attr) \ |
1178 | ((peer)->attr = (group)->conf->attr) | |
1179 | #define PEER_STR_ATTR_INHERIT(peer, group, attr, mt) \ | |
598ce6bd PM |
1180 | do { \ |
1181 | if ((peer)->attr) \ | |
1182 | XFREE(mt, (peer)->attr); \ | |
e7103a96 PM |
1183 | if ((group)->conf->attr) \ |
1184 | (peer)->attr = XSTRDUP(mt, (group)->conf->attr); \ | |
598ce6bd PM |
1185 | else \ |
1186 | (peer)->attr = NULL; \ | |
1187 | } while (0) | |
a14810f4 PM |
1188 | #define PEER_SU_ATTR_INHERIT(peer, group, attr) \ |
1189 | do { \ | |
1190 | if ((peer)->attr) \ | |
1191 | sockunion_free((peer)->attr); \ | |
1192 | if ((group)->conf->attr) \ | |
1193 | (peer)->attr = sockunion_dup((group)->conf->attr); \ | |
1194 | else \ | |
1195 | (peer)->attr = NULL; \ | |
1196 | } while (0) | |
598ce6bd | 1197 | |
ad4cbda1 | 1198 | /* Check if suppress start/restart of sessions to peer. */ |
d62a17ae | 1199 | #define BGP_PEER_START_SUPPRESSED(P) \ |
1200 | (CHECK_FLAG((P)->flags, PEER_FLAG_SHUTDOWN) \ | |
1201 | || CHECK_FLAG((P)->sflags, PEER_STATUS_PREFIX_OVERFLOW)) | |
ad4cbda1 | 1202 | |
0df7c91f PJ |
1203 | #define PEER_PASSWORD_MINLEN (1) |
1204 | #define PEER_PASSWORD_MAXLEN (80) | |
1205 | ||
718e3744 | 1206 | /* This structure's member directly points incoming packet data |
1207 | stream. */ | |
d62a17ae | 1208 | struct bgp_nlri { |
1209 | /* AFI. */ | |
a46a2e9b | 1210 | uint16_t afi; /* iana_afi_t */ |
718e3744 | 1211 | |
d62a17ae | 1212 | /* SAFI. */ |
a46a2e9b | 1213 | uint8_t safi; /* iana_safi_t */ |
718e3744 | 1214 | |
d62a17ae | 1215 | /* Pointer to NLRI byte stream. */ |
d7c0a89a | 1216 | uint8_t *nlri; |
718e3744 | 1217 | |
d62a17ae | 1218 | /* Length of whole NLRI. */ |
1219 | bgp_size_t length; | |
718e3744 | 1220 | }; |
1221 | ||
1222 | /* BGP versions. */ | |
1223 | #define BGP_VERSION_4 4 | |
718e3744 | 1224 | |
1225 | /* Default BGP port number. */ | |
1226 | #define BGP_PORT_DEFAULT 179 | |
1227 | ||
718e3744 | 1228 | /* BGP minimum message size. */ |
1229 | #define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10) | |
1230 | #define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4) | |
1231 | #define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2) | |
1232 | #define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0) | |
1233 | #define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4) | |
1234 | #define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3) | |
1235 | ||
1236 | /* BGP message types. */ | |
1237 | #define BGP_MSG_OPEN 1 | |
1238 | #define BGP_MSG_UPDATE 2 | |
1239 | #define BGP_MSG_NOTIFY 3 | |
1240 | #define BGP_MSG_KEEPALIVE 4 | |
1241 | #define BGP_MSG_ROUTE_REFRESH_NEW 5 | |
1242 | #define BGP_MSG_CAPABILITY 6 | |
1243 | #define BGP_MSG_ROUTE_REFRESH_OLD 128 | |
1244 | ||
1245 | /* BGP open optional parameter. */ | |
1246 | #define BGP_OPEN_OPT_AUTH 1 | |
1247 | #define BGP_OPEN_OPT_CAP 2 | |
1248 | ||
1249 | /* BGP4 attribute type codes. */ | |
1250 | #define BGP_ATTR_ORIGIN 1 | |
1251 | #define BGP_ATTR_AS_PATH 2 | |
1252 | #define BGP_ATTR_NEXT_HOP 3 | |
1253 | #define BGP_ATTR_MULTI_EXIT_DISC 4 | |
1254 | #define BGP_ATTR_LOCAL_PREF 5 | |
1255 | #define BGP_ATTR_ATOMIC_AGGREGATE 6 | |
1256 | #define BGP_ATTR_AGGREGATOR 7 | |
1257 | #define BGP_ATTR_COMMUNITIES 8 | |
1258 | #define BGP_ATTR_ORIGINATOR_ID 9 | |
1259 | #define BGP_ATTR_CLUSTER_LIST 10 | |
1260 | #define BGP_ATTR_DPA 11 | |
1261 | #define BGP_ATTR_ADVERTISER 12 | |
1262 | #define BGP_ATTR_RCID_PATH 13 | |
1263 | #define BGP_ATTR_MP_REACH_NLRI 14 | |
1264 | #define BGP_ATTR_MP_UNREACH_NLRI 15 | |
1265 | #define BGP_ATTR_EXT_COMMUNITIES 16 | |
0b2aa3a0 PJ |
1266 | #define BGP_ATTR_AS4_PATH 17 |
1267 | #define BGP_ATTR_AS4_AGGREGATOR 18 | |
41367172 | 1268 | #define BGP_ATTR_AS_PATHLIMIT 21 |
a21bd7a3 | 1269 | #define BGP_ATTR_PMSI_TUNNEL 22 |
f4c89855 | 1270 | #define BGP_ATTR_ENCAP 23 |
57d187bc | 1271 | #define BGP_ATTR_LARGE_COMMUNITIES 32 |
c5a543b4 | 1272 | #define BGP_ATTR_PREFIX_SID 40 |
65efcfce LB |
1273 | #if ENABLE_BGP_VNC |
1274 | #define BGP_ATTR_VNC 255 | |
1275 | #endif | |
718e3744 | 1276 | |
1277 | /* BGP update origin. */ | |
1278 | #define BGP_ORIGIN_IGP 0 | |
1279 | #define BGP_ORIGIN_EGP 1 | |
1280 | #define BGP_ORIGIN_INCOMPLETE 2 | |
1281 | ||
1282 | /* BGP notify message codes. */ | |
1283 | #define BGP_NOTIFY_HEADER_ERR 1 | |
1284 | #define BGP_NOTIFY_OPEN_ERR 2 | |
1285 | #define BGP_NOTIFY_UPDATE_ERR 3 | |
1286 | #define BGP_NOTIFY_HOLD_ERR 4 | |
1287 | #define BGP_NOTIFY_FSM_ERR 5 | |
1288 | #define BGP_NOTIFY_CEASE 6 | |
1289 | #define BGP_NOTIFY_CAPABILITY_ERR 7 | |
718e3744 | 1290 | |
4b4e07d2 DT |
1291 | #define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0 |
1292 | ||
718e3744 | 1293 | /* BGP_NOTIFY_HEADER_ERR sub codes. */ |
1294 | #define BGP_NOTIFY_HEADER_NOT_SYNC 1 | |
1295 | #define BGP_NOTIFY_HEADER_BAD_MESLEN 2 | |
1296 | #define BGP_NOTIFY_HEADER_BAD_MESTYPE 3 | |
718e3744 | 1297 | |
1298 | /* BGP_NOTIFY_OPEN_ERR sub codes. */ | |
14051b36 | 1299 | #define BGP_NOTIFY_OPEN_MALFORMED_ATTR 0 |
718e3744 | 1300 | #define BGP_NOTIFY_OPEN_UNSUP_VERSION 1 |
1301 | #define BGP_NOTIFY_OPEN_BAD_PEER_AS 2 | |
1302 | #define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3 | |
1303 | #define BGP_NOTIFY_OPEN_UNSUP_PARAM 4 | |
1304 | #define BGP_NOTIFY_OPEN_AUTH_FAILURE 5 | |
1305 | #define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6 | |
1306 | #define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7 | |
718e3744 | 1307 | |
1308 | /* BGP_NOTIFY_UPDATE_ERR sub codes. */ | |
1309 | #define BGP_NOTIFY_UPDATE_MAL_ATTR 1 | |
1310 | #define BGP_NOTIFY_UPDATE_UNREC_ATTR 2 | |
1311 | #define BGP_NOTIFY_UPDATE_MISS_ATTR 3 | |
1312 | #define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4 | |
1313 | #define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5 | |
1314 | #define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6 | |
1315 | #define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7 | |
1316 | #define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8 | |
1317 | #define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9 | |
1318 | #define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10 | |
1319 | #define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11 | |
718e3744 | 1320 | |
4b4e07d2 | 1321 | /* BGP_NOTIFY_CEASE sub codes (RFC 4486). */ |
718e3744 | 1322 | #define BGP_NOTIFY_CEASE_MAX_PREFIX 1 |
1323 | #define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2 | |
1324 | #define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3 | |
1325 | #define BGP_NOTIFY_CEASE_ADMIN_RESET 4 | |
1326 | #define BGP_NOTIFY_CEASE_CONNECT_REJECT 5 | |
1327 | #define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6 | |
545acafb | 1328 | #define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7 |
1329 | #define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8 | |
718e3744 | 1330 | |
1331 | /* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */ | |
1332 | #define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1 | |
1333 | #define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2 | |
1334 | #define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3 | |
718e3744 | 1335 | |
1336 | /* BGP finite state machine status. */ | |
1337 | #define Idle 1 | |
1338 | #define Connect 2 | |
1339 | #define Active 3 | |
1340 | #define OpenSent 4 | |
1341 | #define OpenConfirm 5 | |
1342 | #define Established 6 | |
ca058a30 PJ |
1343 | #define Clearing 7 |
1344 | #define Deleted 8 | |
1345 | #define BGP_STATUS_MAX 9 | |
718e3744 | 1346 | |
1347 | /* BGP finite state machine events. */ | |
1348 | #define BGP_Start 1 | |
1349 | #define BGP_Stop 2 | |
1350 | #define TCP_connection_open 3 | |
1351 | #define TCP_connection_closed 4 | |
1352 | #define TCP_connection_open_failed 5 | |
1353 | #define TCP_fatal_error 6 | |
1354 | #define ConnectRetry_timer_expired 7 | |
1355 | #define Hold_Timer_expired 8 | |
1356 | #define KeepAlive_timer_expired 9 | |
1357 | #define Receive_OPEN_message 10 | |
1358 | #define Receive_KEEPALIVE_message 11 | |
1359 | #define Receive_UPDATE_message 12 | |
1360 | #define Receive_NOTIFICATION_message 13 | |
ca058a30 PJ |
1361 | #define Clearing_Completed 14 |
1362 | #define BGP_EVENTS_MAX 15 | |
718e3744 | 1363 | |
1364 | /* BGP timers default value. */ | |
8efe88ea | 1365 | /* note: the DFLT_ ones depend on compile-time "defaults" selection */ |
5ca5f1c8 | 1366 | #define BGP_INIT_START_TIMER 1 |
8efe88ea DL |
1367 | #define BGP_DEFAULT_HOLDTIME DFLT_BGP_HOLDTIME |
1368 | #define BGP_DEFAULT_KEEPALIVE DFLT_BGP_KEEPALIVE | |
12179ba3 | 1369 | #define BGP_DEFAULT_EBGP_ROUTEADV 0 |
1670355a | 1370 | #define BGP_DEFAULT_IBGP_ROUTEADV 0 |
8efe88ea | 1371 | #define BGP_DEFAULT_CONNECT_RETRY DFLT_BGP_TIMERS_CONNECT |
718e3744 | 1372 | |
1373 | /* BGP default local preference. */ | |
1374 | #define BGP_DEFAULT_LOCAL_PREF 100 | |
1375 | ||
7f323236 DW |
1376 | /* BGP local-preference to send when 'bgp graceful-shutdown' |
1377 | * is configured */ | |
1378 | #define BGP_GSHUT_LOCAL_PREF 0 | |
1379 | ||
3f9c7369 DS |
1380 | /* BGP default subgroup packet queue max . */ |
1381 | #define BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX 40 | |
1382 | ||
538621f2 | 1383 | /* BGP graceful restart */ |
1384 | #define BGP_DEFAULT_RESTART_TIME 120 | |
1385 | #define BGP_DEFAULT_STALEPATH_TIME 360 | |
1386 | ||
718e3744 | 1387 | /* BGP uptime string length. */ |
1388 | #define BGP_UPTIME_LEN 25 | |
1389 | ||
1390 | /* Default configuration settings for bgpd. */ | |
1391 | #define BGP_VTY_PORT 2605 | |
718e3744 | 1392 | #define BGP_DEFAULT_CONFIG "bgpd.conf" |
1393 | ||
1394 | /* Check AS path loop when we send NLRI. */ | |
1395 | /* #define BGP_SEND_ASPATH_CHECK */ | |
1396 | ||
f14e6fdb DS |
1397 | /* BGP Dynamic Neighbors feature */ |
1398 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT 100 | |
1399 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_MIN 1 | |
1400 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_MAX 5000 | |
1401 | ||
718e3744 | 1402 | /* Flag for peer_clear_soft(). */ |
d62a17ae | 1403 | enum bgp_clear_type { |
1404 | BGP_CLEAR_SOFT_NONE, | |
1405 | BGP_CLEAR_SOFT_OUT, | |
1406 | BGP_CLEAR_SOFT_IN, | |
1407 | BGP_CLEAR_SOFT_BOTH, | |
1408 | BGP_CLEAR_SOFT_IN_ORF_PREFIX | |
718e3744 | 1409 | }; |
1410 | ||
1411 | /* Macros. */ | |
424ab01d | 1412 | #define BGP_INPUT(P) ((P)->curr) |
2d34fb80 | 1413 | #define BGP_INPUT_PNT(P) (stream_pnt(BGP_INPUT(P))) |
d62a17ae | 1414 | #define BGP_IS_VALID_STATE_FOR_NOTIF(S) \ |
1415 | (((S) == OpenSent) || ((S) == OpenConfirm) || ((S) == Established)) | |
718e3744 | 1416 | |
718e3744 | 1417 | /* BGP error codes. */ |
1418 | #define BGP_SUCCESS 0 | |
1419 | #define BGP_ERR_INVALID_VALUE -1 | |
1420 | #define BGP_ERR_INVALID_FLAG -2 | |
1421 | #define BGP_ERR_INVALID_AS -3 | |
1422 | #define BGP_ERR_INVALID_BGP -4 | |
1423 | #define BGP_ERR_PEER_GROUP_MEMBER -5 | |
1424 | #define BGP_ERR_MULTIPLE_INSTANCE_USED -6 | |
c8560b44 DW |
1425 | #define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -7 |
1426 | #define BGP_ERR_PEER_GROUP_CANT_CHANGE -8 | |
1427 | #define BGP_ERR_PEER_GROUP_MISMATCH -9 | |
1428 | #define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -10 | |
1429 | #define BGP_ERR_MULTIPLE_INSTANCE_NOT_SET -11 | |
1430 | #define BGP_ERR_AS_MISMATCH -12 | |
1431 | #define BGP_ERR_PEER_FLAG_CONFLICT -13 | |
1432 | #define BGP_ERR_PEER_GROUP_SHUTDOWN -14 | |
1433 | #define BGP_ERR_PEER_FILTER_CONFLICT -15 | |
1434 | #define BGP_ERR_NOT_INTERNAL_PEER -16 | |
1435 | #define BGP_ERR_REMOVE_PRIVATE_AS -17 | |
1436 | #define BGP_ERR_AF_UNCONFIGURED -18 | |
1437 | #define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -19 | |
1438 | #define BGP_ERR_INSTANCE_MISMATCH -20 | |
1439 | #define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -21 | |
1440 | #define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -22 | |
1441 | #define BGP_ERR_TCPSIG_FAILED -23 | |
1442 | #define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -24 | |
1443 | #define BGP_ERR_NO_IBGP_WITH_TTLHACK -25 | |
1444 | #define BGP_ERR_NO_INTERFACE_CONFIG -26 | |
1445 | #define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS -27 | |
1446 | #define BGP_ERR_AS_OVERRIDE -28 | |
1447 | #define BGP_ERR_INVALID_DYNAMIC_NEIGHBORS_LIMIT -29 | |
1448 | #define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_EXISTS -30 | |
1449 | #define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND -31 | |
1450 | #define BGP_ERR_INVALID_FOR_DYNAMIC_PEER -32 | |
1451 | #define BGP_ERR_MAX -33 | |
63fa10b5 | 1452 | #define BGP_ERR_INVALID_FOR_DIRECT_PEER -34 |
9bedbb1e | 1453 | #define BGP_ERR_PEER_SAFI_CONFLICT -35 |
718e3744 | 1454 | |
3f9c7369 DS |
1455 | /* |
1456 | * Enumeration of different policy kinds a peer can be configured with. | |
1457 | */ | |
d62a17ae | 1458 | typedef enum { |
1459 | BGP_POLICY_ROUTE_MAP, | |
1460 | BGP_POLICY_FILTER_LIST, | |
1461 | BGP_POLICY_PREFIX_LIST, | |
1462 | BGP_POLICY_DISTRIBUTE_LIST, | |
3f9c7369 DS |
1463 | } bgp_policy_type_e; |
1464 | ||
718e3744 | 1465 | extern struct bgp_master *bm; |
37fe7731 | 1466 | extern unsigned int multipath_num; |
718e3744 | 1467 | |
718e3744 | 1468 | /* Prototypes. */ |
d62a17ae | 1469 | extern void bgp_terminate(void); |
1470 | extern void bgp_reset(void); | |
1471 | extern time_t bgp_clock(void); | |
1472 | extern void bgp_zclient_reset(void); | |
1473 | extern int bgp_nexthop_set(union sockunion *, union sockunion *, | |
1474 | struct bgp_nexthop *, struct peer *); | |
1475 | extern struct bgp *bgp_get_default(void); | |
1476 | extern struct bgp *bgp_lookup(as_t, const char *); | |
1477 | extern struct bgp *bgp_lookup_by_name(const char *); | |
1478 | extern struct bgp *bgp_lookup_by_vrf_id(vrf_id_t); | |
1479 | extern struct peer *peer_lookup(struct bgp *, union sockunion *); | |
1480 | extern struct peer *peer_lookup_by_conf_if(struct bgp *, const char *); | |
04b6bdc0 | 1481 | extern struct peer *peer_lookup_by_hostname(struct bgp *, const char *); |
d62a17ae | 1482 | extern void bgp_peer_conf_if_to_su_update(struct peer *); |
ffd0c037 | 1483 | extern int peer_group_listen_range_del(struct peer_group *, struct prefix *); |
d62a17ae | 1484 | extern struct peer_group *peer_group_lookup(struct bgp *, const char *); |
1485 | extern struct peer_group *peer_group_get(struct bgp *, const char *); | |
1486 | extern struct peer *peer_create_bind_dynamic_neighbor(struct bgp *, | |
1487 | union sockunion *, | |
1488 | struct peer_group *); | |
1489 | extern struct prefix * | |
1490 | peer_group_lookup_dynamic_neighbor_range(struct peer_group *, struct prefix *); | |
1491 | extern struct peer_group *peer_group_lookup_dynamic_neighbor(struct bgp *, | |
1492 | struct prefix *, | |
1493 | struct prefix **); | |
1494 | extern struct peer *peer_lookup_dynamic_neighbor(struct bgp *, | |
1495 | union sockunion *); | |
28066f4b DS |
1496 | |
1497 | /* | |
1498 | * Peers are incredibly easy to memory leak | |
1499 | * due to the various ways that they are actually used | |
1500 | * Provide some functionality to debug locks and unlocks | |
1501 | */ | |
1502 | extern struct peer *peer_lock_with_caller(const char *, struct peer *); | |
1503 | extern struct peer *peer_unlock_with_caller(const char *, struct peer *); | |
1504 | #define peer_unlock(A) peer_unlock_with_caller(__FUNCTION__, (A)) | |
1505 | #define peer_lock(B) peer_lock_with_caller(__FUNCTION__, (B)) | |
1506 | ||
d62a17ae | 1507 | extern bgp_peer_sort_t peer_sort(struct peer *peer); |
1508 | extern int peer_active(struct peer *); | |
1509 | extern int peer_active_nego(struct peer *); | |
1510 | extern void bgp_recalculate_all_bestpaths(struct bgp *bgp); | |
a80beece | 1511 | extern struct peer *peer_create(union sockunion *, const char *, struct bgp *, |
d62a17ae | 1512 | as_t, as_t, int, afi_t, safi_t, |
1513 | struct peer_group *); | |
1514 | extern struct peer *peer_create_accept(struct bgp *); | |
1515 | extern void peer_xfer_config(struct peer *dst, struct peer *src); | |
d7c0a89a | 1516 | extern char *peer_uptime(time_t, char *, size_t, uint8_t, json_object *); |
856ca177 | 1517 | |
d62a17ae | 1518 | extern int bgp_config_write(struct vty *); |
6b0655a2 | 1519 | |
d62a17ae | 1520 | extern void bgp_master_init(struct thread_master *master); |
718e3744 | 1521 | |
d62a17ae | 1522 | extern void bgp_init(void); |
419dfe6a | 1523 | extern void bgp_pthreads_run(void); |
2d4ee774 | 1524 | extern void bgp_pthreads_finish(void); |
d62a17ae | 1525 | extern void bgp_route_map_init(void); |
1526 | extern void bgp_session_reset(struct peer *); | |
718e3744 | 1527 | |
d62a17ae | 1528 | extern int bgp_option_set(int); |
1529 | extern int bgp_option_unset(int); | |
1530 | extern int bgp_option_check(int); | |
718e3744 | 1531 | |
d62a17ae | 1532 | extern int bgp_get(struct bgp **, as_t *, const char *, enum bgp_instance_type); |
1533 | extern void bgp_instance_up(struct bgp *); | |
1534 | extern void bgp_instance_down(struct bgp *); | |
1535 | extern int bgp_delete(struct bgp *); | |
718e3744 | 1536 | |
e5619c28 PG |
1537 | extern int bgp_handle_socket(struct bgp *bgp, struct vrf *vrf, |
1538 | vrf_id_t old_vrf_id, bool create); | |
1539 | ||
d62a17ae | 1540 | extern int bgp_flag_set(struct bgp *, int); |
1541 | extern int bgp_flag_unset(struct bgp *, int); | |
1542 | extern int bgp_flag_check(struct bgp *, int); | |
718e3744 | 1543 | |
d62a17ae | 1544 | extern void bgp_router_id_zebra_bump(vrf_id_t, const struct prefix *); |
1545 | extern int bgp_router_id_static_set(struct bgp *, struct in_addr); | |
718e3744 | 1546 | |
d62a17ae | 1547 | extern int bgp_cluster_id_set(struct bgp *, struct in_addr *); |
1548 | extern int bgp_cluster_id_unset(struct bgp *); | |
718e3744 | 1549 | |
d62a17ae | 1550 | extern int bgp_confederation_id_set(struct bgp *, as_t); |
1551 | extern int bgp_confederation_id_unset(struct bgp *); | |
1552 | extern int bgp_confederation_peers_check(struct bgp *, as_t); | |
718e3744 | 1553 | |
d62a17ae | 1554 | extern int bgp_confederation_peers_add(struct bgp *, as_t); |
1555 | extern int bgp_confederation_peers_remove(struct bgp *, as_t); | |
718e3744 | 1556 | |
d7c0a89a | 1557 | extern int bgp_timers_set(struct bgp *, uint32_t keepalive, uint32_t holdtime); |
d62a17ae | 1558 | extern int bgp_timers_unset(struct bgp *); |
718e3744 | 1559 | |
d7c0a89a | 1560 | extern int bgp_default_local_preference_set(struct bgp *, uint32_t); |
d62a17ae | 1561 | extern int bgp_default_local_preference_unset(struct bgp *); |
718e3744 | 1562 | |
d7c0a89a | 1563 | extern int bgp_default_subgroup_pkt_queue_max_set(struct bgp *bgp, uint32_t); |
d62a17ae | 1564 | extern int bgp_default_subgroup_pkt_queue_max_unset(struct bgp *bgp); |
3f9c7369 | 1565 | |
d62a17ae | 1566 | extern int bgp_listen_limit_set(struct bgp *, int); |
1567 | extern int bgp_listen_limit_unset(struct bgp *); | |
f14e6fdb | 1568 | |
d62a17ae | 1569 | extern int bgp_update_delay_active(struct bgp *); |
1570 | extern int bgp_update_delay_configured(struct bgp *); | |
318cac96 | 1571 | extern int bgp_afi_safi_peer_exists(struct bgp *bgp, afi_t afi, safi_t safi); |
d62a17ae | 1572 | extern void peer_as_change(struct peer *, as_t, int); |
1573 | extern int peer_remote_as(struct bgp *, union sockunion *, const char *, as_t *, | |
1574 | int, afi_t, safi_t); | |
1575 | extern int peer_group_remote_as(struct bgp *, const char *, as_t *, int); | |
1576 | extern int peer_delete(struct peer *peer); | |
1577 | extern int peer_group_delete(struct peer_group *); | |
1578 | extern int peer_group_remote_as_delete(struct peer_group *); | |
f14e6fdb | 1579 | extern int peer_group_listen_range_add(struct peer_group *, struct prefix *); |
718e3744 | 1580 | |
d62a17ae | 1581 | extern int peer_activate(struct peer *, afi_t, safi_t); |
1582 | extern int peer_deactivate(struct peer *, afi_t, safi_t); | |
1583 | extern int peer_afc_set(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1584 | |
d62a17ae | 1585 | extern int peer_group_bind(struct bgp *, union sockunion *, struct peer *, |
1586 | struct peer_group *, as_t *); | |
718e3744 | 1587 | |
d7c0a89a QY |
1588 | extern int peer_flag_set(struct peer *, uint32_t); |
1589 | extern int peer_flag_unset(struct peer *, uint32_t); | |
9fb964de | 1590 | extern void peer_flag_inherit(struct peer *peer, uint32_t flag); |
718e3744 | 1591 | |
d7c0a89a QY |
1592 | extern int peer_af_flag_set(struct peer *, afi_t, safi_t, uint32_t); |
1593 | extern int peer_af_flag_unset(struct peer *, afi_t, safi_t, uint32_t); | |
1594 | extern int peer_af_flag_check(struct peer *, afi_t, safi_t, uint32_t); | |
cf9ac8bf PM |
1595 | extern void peer_af_flag_inherit(struct peer *peer, afi_t afi, safi_t safi, |
1596 | uint32_t flag); | |
718e3744 | 1597 | |
d62a17ae | 1598 | extern int peer_ebgp_multihop_set(struct peer *, int); |
1599 | extern int peer_ebgp_multihop_unset(struct peer *); | |
1600 | extern int is_ebgp_multihop_configured(struct peer *peer); | |
718e3744 | 1601 | |
d62a17ae | 1602 | extern int peer_description_set(struct peer *, const char *); |
1603 | extern int peer_description_unset(struct peer *); | |
718e3744 | 1604 | |
d62a17ae | 1605 | extern int peer_update_source_if_set(struct peer *, const char *); |
1606 | extern int peer_update_source_addr_set(struct peer *, const union sockunion *); | |
1607 | extern int peer_update_source_unset(struct peer *); | |
718e3744 | 1608 | |
d62a17ae | 1609 | extern int peer_default_originate_set(struct peer *, afi_t, safi_t, |
1610 | const char *); | |
1611 | extern int peer_default_originate_unset(struct peer *, afi_t, safi_t); | |
718e3744 | 1612 | |
d7c0a89a | 1613 | extern int peer_port_set(struct peer *, uint16_t); |
d62a17ae | 1614 | extern int peer_port_unset(struct peer *); |
718e3744 | 1615 | |
d7c0a89a | 1616 | extern int peer_weight_set(struct peer *, afi_t, safi_t, uint16_t); |
d62a17ae | 1617 | extern int peer_weight_unset(struct peer *, afi_t, safi_t); |
718e3744 | 1618 | |
d7c0a89a QY |
1619 | extern int peer_timers_set(struct peer *, uint32_t keepalive, |
1620 | uint32_t holdtime); | |
d62a17ae | 1621 | extern int peer_timers_unset(struct peer *); |
718e3744 | 1622 | |
d7c0a89a | 1623 | extern int peer_timers_connect_set(struct peer *, uint32_t); |
d62a17ae | 1624 | extern int peer_timers_connect_unset(struct peer *); |
718e3744 | 1625 | |
d7c0a89a | 1626 | extern int peer_advertise_interval_set(struct peer *, uint32_t); |
d62a17ae | 1627 | extern int peer_advertise_interval_unset(struct peer *); |
718e3744 | 1628 | |
d62a17ae | 1629 | extern void peer_interface_set(struct peer *, const char *); |
1630 | extern void peer_interface_unset(struct peer *); | |
718e3744 | 1631 | |
d62a17ae | 1632 | extern int peer_distribute_set(struct peer *, afi_t, safi_t, int, const char *); |
1633 | extern int peer_distribute_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1634 | |
d62a17ae | 1635 | extern int peer_allowas_in_set(struct peer *, afi_t, safi_t, int, int); |
1636 | extern int peer_allowas_in_unset(struct peer *, afi_t, safi_t); | |
718e3744 | 1637 | |
d62a17ae | 1638 | extern int peer_local_as_set(struct peer *, as_t, int, int); |
1639 | extern int peer_local_as_unset(struct peer *); | |
718e3744 | 1640 | |
d62a17ae | 1641 | extern int peer_prefix_list_set(struct peer *, afi_t, safi_t, int, |
1642 | const char *); | |
1643 | extern int peer_prefix_list_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1644 | |
d62a17ae | 1645 | extern int peer_aslist_set(struct peer *, afi_t, safi_t, int, const char *); |
1646 | extern int peer_aslist_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1647 | |
d62a17ae | 1648 | extern int peer_route_map_set(struct peer *, afi_t, safi_t, int, const char *); |
1649 | extern int peer_route_map_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1650 | |
d62a17ae | 1651 | extern int peer_unsuppress_map_set(struct peer *, afi_t, safi_t, const char *); |
0df7c91f | 1652 | |
d62a17ae | 1653 | extern int peer_password_set(struct peer *, const char *); |
1654 | extern int peer_password_unset(struct peer *); | |
0df7c91f | 1655 | |
d62a17ae | 1656 | extern int peer_unsuppress_map_unset(struct peer *, afi_t, safi_t); |
718e3744 | 1657 | |
d7c0a89a QY |
1658 | extern int peer_maximum_prefix_set(struct peer *, afi_t, safi_t, uint32_t, |
1659 | uint8_t, int, uint16_t); | |
d62a17ae | 1660 | extern int peer_maximum_prefix_unset(struct peer *, afi_t, safi_t); |
718e3744 | 1661 | |
d62a17ae | 1662 | extern int peer_clear(struct peer *, struct listnode **); |
1663 | extern int peer_clear_soft(struct peer *, afi_t, safi_t, enum bgp_clear_type); | |
93406d87 | 1664 | |
d62a17ae | 1665 | extern int peer_ttl_security_hops_set(struct peer *, int); |
1666 | extern int peer_ttl_security_hops_unset(struct peer *); | |
fa411a21 | 1667 | |
d62a17ae | 1668 | extern int peer_tx_shutdown_message_set(struct peer *, const char *msg); |
1669 | extern int peer_tx_shutdown_message_unset(struct peer *); | |
73d70fa6 | 1670 | |
d62a17ae | 1671 | extern int bgp_route_map_update_timer(struct thread *thread); |
518f0eb1 | 1672 | extern void bgp_route_map_terminate(void); |
16286195 | 1673 | |
d62a17ae | 1674 | extern int peer_cmp(struct peer *p1, struct peer *p2); |
3f9c7369 | 1675 | |
5c525538 | 1676 | extern int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi, iana_safi_t pkt_safi, |
d62a17ae | 1677 | afi_t *afi, safi_t *safi); |
1678 | extern int bgp_map_afi_safi_int2iana(afi_t afi, safi_t safi, | |
a4d82a8a PZ |
1679 | iana_afi_t *pkt_afi, |
1680 | iana_safi_t *pkt_safi); | |
9cabb64b | 1681 | |
d62a17ae | 1682 | extern struct peer_af *peer_af_create(struct peer *, afi_t, safi_t); |
1683 | extern struct peer_af *peer_af_find(struct peer *, afi_t, safi_t); | |
1684 | extern int peer_af_delete(struct peer *, afi_t, safi_t); | |
3f9c7369 | 1685 | |
ffd0c037 | 1686 | extern void bgp_close(void); |
92375c91 JB |
1687 | extern void bgp_free(struct bgp *); |
1688 | ||
1689 | static inline struct bgp *bgp_lock(struct bgp *bgp) | |
1690 | { | |
1691 | bgp->lock++; | |
1692 | return bgp; | |
1693 | } | |
1694 | ||
1695 | static inline void bgp_unlock(struct bgp *bgp) | |
1696 | { | |
1697 | assert(bgp->lock > 0); | |
1698 | if (--bgp->lock == 0) | |
1699 | bgp_free(bgp); | |
1700 | } | |
ffd0c037 | 1701 | |
d62a17ae | 1702 | static inline int afindex(afi_t afi, safi_t safi) |
3f9c7369 | 1703 | { |
d62a17ae | 1704 | switch (afi) { |
1705 | case AFI_IP: | |
1706 | switch (safi) { | |
1707 | case SAFI_UNICAST: | |
1708 | return BGP_AF_IPV4_UNICAST; | |
1709 | break; | |
1710 | case SAFI_MULTICAST: | |
1711 | return BGP_AF_IPV4_MULTICAST; | |
1712 | break; | |
1713 | case SAFI_LABELED_UNICAST: | |
1714 | return BGP_AF_IPV4_LBL_UNICAST; | |
1715 | break; | |
1716 | case SAFI_MPLS_VPN: | |
1717 | return BGP_AF_IPV4_VPN; | |
1718 | break; | |
1719 | case SAFI_ENCAP: | |
1720 | return BGP_AF_IPV4_ENCAP; | |
1721 | break; | |
7c40bf39 | 1722 | case SAFI_FLOWSPEC: |
1723 | return BGP_AF_IPV4_FLOWSPEC; | |
d62a17ae | 1724 | default: |
1725 | return BGP_AF_MAX; | |
1726 | break; | |
1727 | } | |
1728 | break; | |
1729 | case AFI_IP6: | |
1730 | switch (safi) { | |
1731 | case SAFI_UNICAST: | |
1732 | return BGP_AF_IPV6_UNICAST; | |
1733 | break; | |
1734 | case SAFI_MULTICAST: | |
1735 | return BGP_AF_IPV6_MULTICAST; | |
1736 | break; | |
1737 | case SAFI_LABELED_UNICAST: | |
1738 | return BGP_AF_IPV6_LBL_UNICAST; | |
1739 | break; | |
1740 | case SAFI_MPLS_VPN: | |
1741 | return BGP_AF_IPV6_VPN; | |
1742 | break; | |
1743 | case SAFI_ENCAP: | |
1744 | return BGP_AF_IPV6_ENCAP; | |
1745 | break; | |
7c40bf39 | 1746 | case SAFI_FLOWSPEC: |
1747 | return BGP_AF_IPV6_FLOWSPEC; | |
d62a17ae | 1748 | default: |
1749 | return BGP_AF_MAX; | |
1750 | break; | |
1751 | } | |
1752 | break; | |
1753 | case AFI_L2VPN: | |
1754 | switch (safi) { | |
1755 | case SAFI_EVPN: | |
1756 | return BGP_AF_L2VPN_EVPN; | |
1757 | break; | |
1758 | default: | |
1759 | return BGP_AF_MAX; | |
1760 | break; | |
1761 | } | |
3f9c7369 | 1762 | default: |
d62a17ae | 1763 | return BGP_AF_MAX; |
1764 | break; | |
3f9c7369 | 1765 | } |
3f9c7369 DS |
1766 | } |
1767 | ||
c8560b44 | 1768 | /* If the peer is not a peer-group but is bound to a peer-group return 1 */ |
d62a17ae | 1769 | static inline int peer_group_active(struct peer *peer) |
3f9c7369 | 1770 | { |
d62a17ae | 1771 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) && peer->group) |
1772 | return 1; | |
1773 | return 0; | |
3f9c7369 DS |
1774 | } |
1775 | ||
1776 | /* If peer is negotiated at least one address family return 1. */ | |
d62a17ae | 1777 | static inline int peer_afi_active_nego(const struct peer *peer, afi_t afi) |
3f9c7369 | 1778 | { |
d62a17ae | 1779 | if (peer->afc_nego[afi][SAFI_UNICAST] |
1780 | || peer->afc_nego[afi][SAFI_MULTICAST] | |
1781 | || peer->afc_nego[afi][SAFI_LABELED_UNICAST] | |
1782 | || peer->afc_nego[afi][SAFI_MPLS_VPN] | |
1783 | || peer->afc_nego[afi][SAFI_ENCAP] | |
7c40bf39 | 1784 | || peer->afc_nego[afi][SAFI_FLOWSPEC] |
d62a17ae | 1785 | || peer->afc_nego[afi][SAFI_EVPN]) |
1786 | return 1; | |
1787 | return 0; | |
3f9c7369 DS |
1788 | } |
1789 | ||
f14e6fdb | 1790 | /* If at least one address family activated for group, return 1. */ |
d62a17ae | 1791 | static inline int peer_group_af_configured(struct peer_group *group) |
f14e6fdb | 1792 | { |
d62a17ae | 1793 | struct peer *peer = group->conf; |
1794 | ||
1795 | if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST] | |
1796 | || peer->afc[AFI_IP][SAFI_LABELED_UNICAST] | |
7c40bf39 | 1797 | || peer->afc[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 1798 | || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP] |
1799 | || peer->afc[AFI_IP6][SAFI_UNICAST] | |
1800 | || peer->afc[AFI_IP6][SAFI_MULTICAST] | |
1801 | || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST] | |
1802 | || peer->afc[AFI_IP6][SAFI_MPLS_VPN] | |
ba0fcaf6 | 1803 | || peer->afc[AFI_IP6][SAFI_ENCAP] |
7c40bf39 | 1804 | || peer->afc[AFI_IP6][SAFI_FLOWSPEC] |
ba0fcaf6 | 1805 | || peer->afc[AFI_L2VPN][SAFI_EVPN]) |
d62a17ae | 1806 | return 1; |
1807 | return 0; | |
f14e6fdb DS |
1808 | } |
1809 | ||
d62a17ae | 1810 | static inline char *timestamp_string(time_t ts) |
3f9c7369 | 1811 | { |
d62a17ae | 1812 | time_t tbuf; |
1813 | tbuf = time(NULL) - (bgp_clock() - ts); | |
1814 | return ctime(&tbuf); | |
3f9c7369 DS |
1815 | } |
1816 | ||
d62a17ae | 1817 | static inline int peer_established(struct peer *peer) |
3f9c7369 | 1818 | { |
d62a17ae | 1819 | if (peer->status == Established) |
1820 | return 1; | |
1821 | return 0; | |
3f9c7369 DS |
1822 | } |
1823 | ||
d62a17ae | 1824 | static inline int peer_dynamic_neighbor(struct peer *peer) |
f14e6fdb | 1825 | { |
d62a17ae | 1826 | return (CHECK_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR)) ? 1 : 0; |
f14e6fdb DS |
1827 | } |
1828 | ||
d62a17ae | 1829 | static inline int peer_cap_enhe(struct peer *peer, afi_t afi, safi_t safi) |
8a92a8a0 | 1830 | { |
d62a17ae | 1831 | return (CHECK_FLAG(peer->af_cap[afi][safi], PEER_CAP_ENHE_AF_NEGO)); |
8a92a8a0 DS |
1832 | } |
1833 | ||
d1be1f08 | 1834 | /* Lookup VRF for BGP instance based on its type. */ |
d62a17ae | 1835 | static inline struct vrf *bgp_vrf_lookup_by_instance_type(struct bgp *bgp) |
d1be1f08 | 1836 | { |
d62a17ae | 1837 | struct vrf *vrf; |
d1be1f08 | 1838 | |
d62a17ae | 1839 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) |
1840 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
1841 | else if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
1842 | vrf = vrf_lookup_by_name(bgp->name); | |
1843 | else | |
1844 | vrf = NULL; | |
d1be1f08 | 1845 | |
d62a17ae | 1846 | return vrf; |
d1be1f08 | 1847 | } |
1848 | ||
1849 | /* Link BGP instance to VRF. */ | |
d62a17ae | 1850 | static inline void bgp_vrf_link(struct bgp *bgp, struct vrf *vrf) |
d1be1f08 | 1851 | { |
d62a17ae | 1852 | bgp->vrf_id = vrf->vrf_id; |
92375c91 JB |
1853 | if (vrf->info != (void *)bgp) |
1854 | vrf->info = (void *)bgp_lock(bgp); | |
d1be1f08 | 1855 | } |
1856 | ||
1857 | /* Unlink BGP instance from VRF. */ | |
d62a17ae | 1858 | static inline void bgp_vrf_unlink(struct bgp *bgp, struct vrf *vrf) |
d1be1f08 | 1859 | { |
d62a17ae | 1860 | if (vrf->info == (void *)bgp) { |
1861 | vrf->info = NULL; | |
1862 | bgp_unlock(bgp); | |
1863 | } | |
1864 | bgp->vrf_id = VRF_UNKNOWN; | |
d1be1f08 | 1865 | } |
1866 | ||
d62a17ae | 1867 | extern void bgp_update_redist_vrf_bitmaps(struct bgp *, vrf_id_t); |
65efcfce LB |
1868 | |
1869 | /* For benefit of rfapi */ | |
d62a17ae | 1870 | extern struct peer *peer_new(struct bgp *bgp); |
65efcfce | 1871 | |
00d252cb | 1872 | #endif /* _QUAGGA_BGPD_H */ |