]>
Commit | Line | Data |
---|---|---|
718e3744 | 1 | /* BGP message definition header. |
896014f4 DL |
2 | * Copyright (C) 1996, 97, 98, 99, 2000 Kunihiro Ishiguro |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
718e3744 | 20 | |
00d252cb | 21 | #ifndef _QUAGGA_BGPD_H |
22 | #define _QUAGGA_BGPD_H | |
23 | ||
19df7279 | 24 | #include "qobj.h" |
d3ecc69e QY |
25 | #include <pthread.h> |
26 | ||
2b9bcf30 | 27 | #include "hook.h" |
1ac267a2 | 28 | #include "frr_pthread.h" |
856ca177 | 29 | #include "lib/json.h" |
6aeb9e78 | 30 | #include "vrf.h" |
94c60424 | 31 | #include "vty.h" |
17136bf2 | 32 | #include "iana_afi.h" |
6aeb9e78 | 33 | |
718e3744 | 34 | /* For union sockunion. */ |
3f9c7369 | 35 | #include "queue.h" |
718e3744 | 36 | #include "sockunion.h" |
518f0eb1 | 37 | #include "routemap.h" |
ffd0c037 | 38 | #include "linklist.h" |
8efe88ea | 39 | #include "defaults.h" |
4a1ab8e4 | 40 | #include "bgp_memory.h" |
14c1a7bf | 41 | #include "bitfield.h" |
fe1dc5a3 | 42 | #include "vxlan.h" |
955bfd98 | 43 | #include "bgp_labelpool.h" |
dcc68b5e | 44 | #include "bgp_addpath_types.h" |
718e3744 | 45 | |
04b6bdc0 | 46 | #define BGP_MAX_HOSTNAME 64 /* Linux max, is larger than most other sys */ |
40520c36 | 47 | #define BGP_PEER_MAX_HASH_SIZE 16384 |
04b6bdc0 | 48 | |
5c81b96a | 49 | /* Default interval for IPv6 RAs when triggered by BGP unnumbered neighbor. */ |
50 | #define BGP_UNNUM_DEFAULT_RA_INTERVAL 10 | |
51 | ||
3f9c7369 DS |
52 | struct update_subgroup; |
53 | struct bpacket; | |
4762c213 | 54 | struct bgp_pbr_config; |
3f9c7369 | 55 | |
0299c004 DS |
56 | /* |
57 | * Allow the neighbor XXXX remote-as to take internal or external | |
d62a17ae | 58 | * AS_SPECIFIED is zero to auto-inherit original non-feature/enhancement |
59 | * behavior | |
0299c004 DS |
60 | * in the system. |
61 | */ | |
d62a17ae | 62 | enum { AS_UNSPECIFIED = 0, |
63 | AS_SPECIFIED, | |
64 | AS_INTERNAL, | |
65 | AS_EXTERNAL, | |
0299c004 DS |
66 | }; |
67 | ||
2d3dd828 | 68 | /* Zebra Gracaful Restart states */ |
69 | enum zebra_gr_mode { | |
70 | ZEBRA_GR_DISABLE = 0, | |
71 | ZEBRA_GR_ENABLE | |
72 | }; | |
73 | ||
718e3744 | 74 | /* Typedef BGP specific types. */ |
d7c0a89a QY |
75 | typedef uint32_t as_t; |
76 | typedef uint16_t as16_t; /* we may still encounter 16 Bit asnums */ | |
77 | typedef uint16_t bgp_size_t; | |
718e3744 | 78 | |
d62a17ae | 79 | #define max(a, b) \ |
80 | ({ \ | |
81 | __typeof__(a) _a = (a); \ | |
82 | __typeof__(b) _b = (b); \ | |
83 | _a > _b ? _a : _b; \ | |
84 | }) | |
85 | ||
86 | enum bgp_af_index { | |
87 | BGP_AF_START, | |
88 | BGP_AF_IPV4_UNICAST = BGP_AF_START, | |
89 | BGP_AF_IPV4_MULTICAST, | |
90 | BGP_AF_IPV4_VPN, | |
91 | BGP_AF_IPV6_UNICAST, | |
92 | BGP_AF_IPV6_MULTICAST, | |
93 | BGP_AF_IPV6_VPN, | |
94 | BGP_AF_IPV4_ENCAP, | |
95 | BGP_AF_IPV6_ENCAP, | |
96 | BGP_AF_L2VPN_EVPN, | |
97 | BGP_AF_IPV4_LBL_UNICAST, | |
98 | BGP_AF_IPV6_LBL_UNICAST, | |
7c40bf39 | 99 | BGP_AF_IPV4_FLOWSPEC, |
100 | BGP_AF_IPV6_FLOWSPEC, | |
d62a17ae | 101 | BGP_AF_MAX |
3f9c7369 DS |
102 | }; |
103 | ||
d62a17ae | 104 | #define AF_FOREACH(af) for ((af) = BGP_AF_START; (af) < BGP_AF_MAX; (af)++) |
3f9c7369 | 105 | |
d62a17ae | 106 | #define FOREACH_AFI_SAFI(afi, safi) \ |
107 | for (afi = AFI_IP; afi < AFI_MAX; afi++) \ | |
108 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
3f9c7369 | 109 | |
d1927ebe AS |
110 | #define FOREACH_SAFI(safi) \ |
111 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
3f9c7369 | 112 | |
1ac267a2 DL |
113 | extern struct frr_pthread *bgp_pth_io; |
114 | extern struct frr_pthread *bgp_pth_ka; | |
115 | ||
718e3744 | 116 | /* BGP master for system wide configurations and variables. */ |
d62a17ae | 117 | struct bgp_master { |
118 | /* BGP instance list. */ | |
119 | struct list *bgp; | |
120 | ||
121 | /* BGP thread master. */ | |
122 | struct thread_master *master; | |
718e3744 | 123 | |
d62a17ae | 124 | /* work queues */ |
125 | struct work_queue *process_main_queue; | |
87d4a781 | 126 | |
d62a17ae | 127 | /* Listening sockets */ |
128 | struct list *listen_sockets; | |
718e3744 | 129 | |
d62a17ae | 130 | /* BGP port number. */ |
d7c0a89a | 131 | uint16_t port; |
3a02d1f7 | 132 | |
d62a17ae | 133 | /* Listener address */ |
134 | char *address; | |
718e3744 | 135 | |
48ecf8f5 DS |
136 | /* The Mac table */ |
137 | struct hash *self_mac_hash; | |
138 | ||
d62a17ae | 139 | /* BGP start time. */ |
140 | time_t start_time; | |
141 | ||
142 | /* Various BGP global configuration. */ | |
d7c0a89a | 143 | uint8_t options; |
718e3744 | 144 | #define BGP_OPT_NO_FIB (1 << 0) |
d8a9922d DS |
145 | #define BGP_OPT_NO_LISTEN (1 << 1) |
146 | #define BGP_OPT_NO_ZEBRA (1 << 2) | |
3f9c7369 | 147 | |
d62a17ae | 148 | uint64_t updgrp_idspace; |
149 | uint64_t subgrp_idspace; | |
5fe9f963 | 150 | |
d62a17ae | 151 | /* timer to dampen route map changes */ |
152 | struct thread *t_rmap_update; /* Handle route map updates */ | |
d7c0a89a | 153 | uint32_t rmap_update_timer; /* Route map update timer */ |
5fe9f963 | 154 | #define RMAP_DEFAULT_UPDATE_TIMER 5 /* disabled by default */ |
19df7279 | 155 | |
e9eb5f63 | 156 | /* Id space for automatic RD derivation for an EVI/VRF */ |
157 | bitfield_t rd_idspace; | |
158 | ||
955bfd98 PZ |
159 | /* dynamic mpls label allocation pool */ |
160 | struct labelpool labelpool; | |
161 | ||
e2f3a930 T |
162 | /* BGP-EVPN VRF ID. Defaults to default VRF (if any) */ |
163 | struct bgp* bgp_evpn; | |
164 | ||
c2d020ad DS |
165 | /* How big should we set the socket buffer size */ |
166 | uint32_t socket_buffer; | |
167 | ||
97b4a0ec | 168 | bool terminating; /* global flag that sigint terminate seen */ |
d62a17ae | 169 | QOBJ_FIELDS |
718e3744 | 170 | }; |
19df7279 | 171 | DECLARE_QOBJ_TYPE(bgp_master) |
718e3744 | 172 | |
73ac8160 | 173 | /* BGP route-map structure. */ |
d62a17ae | 174 | struct bgp_rmap { |
175 | char *name; | |
176 | struct route_map *map; | |
73ac8160 DS |
177 | }; |
178 | ||
d62a17ae | 179 | struct bgp_redist { |
d7c0a89a | 180 | unsigned short instance; |
7c8ff89e | 181 | |
d62a17ae | 182 | /* BGP redistribute metric configuration. */ |
d7c0a89a QY |
183 | uint8_t redist_metric_flag; |
184 | uint32_t redist_metric; | |
7c8ff89e | 185 | |
d62a17ae | 186 | /* BGP redistribute route-map. */ |
187 | struct bgp_rmap rmap; | |
7c8ff89e DS |
188 | }; |
189 | ||
ddb5b488 PZ |
190 | typedef enum { |
191 | BGP_VPN_POLICY_DIR_FROMVPN = 0, | |
192 | BGP_VPN_POLICY_DIR_TOVPN = 1, | |
193 | BGP_VPN_POLICY_DIR_MAX = 2 | |
194 | } vpn_policy_direction_t; | |
195 | ||
e70e9f8e PZ |
196 | struct vpn_policy { |
197 | struct bgp *bgp; /* parent */ | |
198 | afi_t afi; | |
199 | struct ecommunity *rtlist[BGP_VPN_POLICY_DIR_MAX]; | |
200 | struct ecommunity *import_redirect_rtlist; | |
201 | char *rmap_name[BGP_VPN_POLICY_DIR_MAX]; | |
202 | struct route_map *rmap[BGP_VPN_POLICY_DIR_MAX]; | |
203 | ||
204 | /* should be mpls_label_t? */ | |
205 | uint32_t tovpn_label; /* may be MPLS_LABEL_NONE */ | |
206 | uint32_t tovpn_zebra_vrf_label_last_sent; | |
207 | struct prefix_rd tovpn_rd; | |
208 | struct prefix tovpn_nexthop; /* unset => set to 0 */ | |
209 | uint32_t flags; | |
210 | #define BGP_VPN_POLICY_TOVPN_LABEL_AUTO (1 << 0) | |
211 | #define BGP_VPN_POLICY_TOVPN_RD_SET (1 << 1) | |
212 | #define BGP_VPN_POLICY_TOVPN_NEXTHOP_SET (1 << 2) | |
12a844a5 | 213 | |
1d4e8b0d DS |
214 | /* |
215 | * If we are importing another vrf into us keep a list of | |
216 | * vrf names that are being imported into us. | |
217 | */ | |
12a844a5 | 218 | struct list *import_vrf; |
1d4e8b0d DS |
219 | |
220 | /* | |
221 | * if we are being exported to another vrf keep a list of | |
222 | * vrf names that we are being exported to. | |
223 | */ | |
12a844a5 | 224 | struct list *export_vrf; |
e70e9f8e PZ |
225 | }; |
226 | ||
ad4cbda1 | 227 | /* |
228 | * Type of 'struct bgp'. | |
229 | * - Default: The default instance | |
230 | * - VRF: A specific (non-default) VRF | |
231 | * - View: An instance used for route exchange | |
232 | * The "default" instance is treated separately to simplify the code. Note | |
233 | * that if deployed in a Multi-VRF environment, it may not exist. | |
234 | */ | |
d62a17ae | 235 | enum bgp_instance_type { |
236 | BGP_INSTANCE_TYPE_DEFAULT, | |
237 | BGP_INSTANCE_TYPE_VRF, | |
238 | BGP_INSTANCE_TYPE_VIEW | |
ad4cbda1 | 239 | }; |
240 | ||
9e3b51a7 | 241 | #define BGP_SEND_EOR(bgp, afi, safi) \ |
242 | (!bgp_flag_check(bgp, BGP_FLAG_GR_DISABLE_EOR) && \ | |
243 | ((bgp->gr_info[afi][safi].t_select_deferral == NULL) || \ | |
244 | (bgp->gr_info[afi][safi].eor_required == \ | |
245 | bgp->gr_info[afi][safi].eor_received))) | |
b0965c44 | 246 | |
247 | /* BGP GR Global ds */ | |
248 | ||
2ba1fe69 | 249 | #define BGP_GLOBAL_GR_MODE 4 |
250 | #define BGP_GLOBAL_GR_EVENT_CMD 4 | |
b0965c44 | 251 | |
b0965c44 | 252 | /* Graceful restart selection deferral timer info */ |
253 | struct graceful_restart_info { | |
254 | /* Count of EOR message expected */ | |
255 | uint32_t eor_required; | |
256 | /* Count of EOR received */ | |
257 | uint32_t eor_received; | |
258 | /* Deferral Timer */ | |
259 | struct thread *t_select_deferral; | |
260 | /* Route list */ | |
261 | struct list *route_list; | |
262 | /* Best route select */ | |
263 | struct thread *t_route_select; | |
2d3dd828 | 264 | /* AFI, SAFI enabled */ |
265 | bool af_enabled[AFI_MAX][SAFI_MAX]; | |
266 | /* Route update completed */ | |
267 | bool route_sync[AFI_MAX][SAFI_MAX]; | |
b0965c44 | 268 | }; |
269 | ||
b0965c44 | 270 | enum global_mode { |
271 | GLOBAL_HELPER = 0, /* This is the default mode */ | |
272 | GLOBAL_GR, | |
273 | GLOBAL_DISABLE, | |
274 | GLOBAL_INVALID | |
275 | }; | |
276 | ||
277 | enum global_gr_command { | |
278 | GLOBAL_GR_CMD = 0, | |
279 | NO_GLOBAL_GR_CMD, | |
280 | GLOBAL_DISABLE_CMD, | |
281 | NO_GLOBAL_DISABLE_CMD | |
282 | }; | |
283 | ||
284 | #define BGP_GR_SUCCESS 0 | |
285 | #define BGP_GR_FAILURE 1 | |
286 | ||
718e3744 | 287 | /* BGP instance structure. */ |
d62a17ae | 288 | struct bgp { |
289 | /* AS number of this BGP instance. */ | |
290 | as_t as; | |
291 | ||
292 | /* Name of this BGP instance. */ | |
293 | char *name; | |
3572fb26 | 294 | char *name_pretty; /* printable "VRF|VIEW name|default" */ |
d62a17ae | 295 | |
296 | /* Type of instance and VRF id. */ | |
297 | enum bgp_instance_type inst_type; | |
298 | vrf_id_t vrf_id; | |
299 | ||
300 | /* Reference count to allow peer_delete to finish after bgp_delete */ | |
301 | int lock; | |
302 | ||
303 | /* Self peer. */ | |
304 | struct peer *peer_self; | |
305 | ||
306 | /* BGP peer. */ | |
307 | struct list *peer; | |
308 | struct hash *peerhash; | |
309 | ||
310 | /* BGP peer group. */ | |
311 | struct list *group; | |
312 | ||
313 | /* The maximum number of BGP dynamic neighbors that can be created */ | |
314 | int dynamic_neighbors_limit; | |
315 | ||
316 | /* The current number of BGP dynamic neighbors */ | |
317 | int dynamic_neighbors_count; | |
318 | ||
319 | struct hash *update_groups[BGP_AF_MAX]; | |
320 | ||
321 | /* | |
322 | * Global statistics for update groups. | |
323 | */ | |
324 | struct { | |
d7c0a89a QY |
325 | uint32_t join_events; |
326 | uint32_t prune_events; | |
327 | uint32_t merge_events; | |
328 | uint32_t split_events; | |
329 | uint32_t updgrp_switch_events; | |
330 | uint32_t peer_refreshes_combined; | |
331 | uint32_t adj_count; | |
332 | uint32_t merge_checks_triggered; | |
333 | ||
334 | uint32_t updgrps_created; | |
335 | uint32_t updgrps_deleted; | |
336 | uint32_t subgrps_created; | |
337 | uint32_t subgrps_deleted; | |
d62a17ae | 338 | } update_group_stats; |
339 | ||
340 | /* BGP configuration. */ | |
d7c0a89a | 341 | uint16_t config; |
c2d58d6d | 342 | #define BGP_CONFIG_CLUSTER_ID (1 << 0) |
343 | #define BGP_CONFIG_CONFEDERATION (1 << 1) | |
718e3744 | 344 | |
d62a17ae | 345 | /* BGP router identifier. */ |
346 | struct in_addr router_id; | |
347 | struct in_addr router_id_static; | |
348 | struct in_addr router_id_zebra; | |
718e3744 | 349 | |
d62a17ae | 350 | /* BGP route reflector cluster ID. */ |
351 | struct in_addr cluster_id; | |
718e3744 | 352 | |
d62a17ae | 353 | /* BGP confederation information. */ |
354 | as_t confed_id; | |
355 | as_t *confed_peers; | |
356 | int confed_peers_cnt; | |
718e3744 | 357 | |
d62a17ae | 358 | struct thread |
359 | *t_startup; /* start-up timer on only once at the beginning */ | |
abc920f8 | 360 | |
d7c0a89a | 361 | uint32_t v_maxmed_onstartup; /* Duration of max-med on start-up */ |
abc920f8 | 362 | #define BGP_MAXMED_ONSTARTUP_UNCONFIGURED 0 /* 0 means off, its the default */ |
d7c0a89a QY |
363 | uint32_t maxmed_onstartup_value; /* Max-med value when active on |
364 | start-up */ | |
d62a17ae | 365 | struct thread |
366 | *t_maxmed_onstartup; /* non-null when max-med onstartup is on */ | |
d7c0a89a | 367 | uint8_t maxmed_onstartup_over; /* Flag to make it effective only once */ |
d62a17ae | 368 | |
d7c0a89a | 369 | uint8_t v_maxmed_admin; /* 1/0 if max-med administrative is on/off */ |
abc920f8 | 370 | #define BGP_MAXMED_ADMIN_UNCONFIGURED 0 /* Off by default */ |
d7c0a89a QY |
371 | uint32_t maxmed_admin_value; /* Max-med value when administrative in on |
372 | */ | |
abc920f8 DS |
373 | #define BGP_MAXMED_VALUE_DEFAULT 4294967294 /* Maximum by default */ |
374 | ||
d7c0a89a QY |
375 | uint8_t maxmed_active; /* 1/0 if max-med is active or not */ |
376 | uint32_t maxmed_value; /* Max-med value when its active */ | |
d62a17ae | 377 | |
378 | /* BGP update delay on startup */ | |
379 | struct thread *t_update_delay; | |
380 | struct thread *t_establish_wait; | |
d7c0a89a QY |
381 | uint8_t update_delay_over; |
382 | uint8_t main_zebra_update_hold; | |
383 | uint8_t main_peers_update_hold; | |
384 | uint16_t v_update_delay; | |
385 | uint16_t v_establish_wait; | |
d62a17ae | 386 | char update_delay_begin_time[64]; |
387 | char update_delay_end_time[64]; | |
388 | char update_delay_zebra_resume_time[64]; | |
389 | char update_delay_peers_resume_time[64]; | |
d7c0a89a QY |
390 | uint32_t established; |
391 | uint32_t restarted_peers; | |
392 | uint32_t implicit_eors; | |
393 | uint32_t explicit_eors; | |
f188f2c4 DS |
394 | #define BGP_UPDATE_DELAY_DEF 0 |
395 | #define BGP_UPDATE_DELAY_MIN 0 | |
396 | #define BGP_UPDATE_DELAY_MAX 3600 | |
397 | ||
d62a17ae | 398 | /* BGP flags. */ |
d7c0a89a | 399 | uint32_t flags; |
718e3744 | 400 | #define BGP_FLAG_ALWAYS_COMPARE_MED (1 << 0) |
401 | #define BGP_FLAG_DETERMINISTIC_MED (1 << 1) | |
402 | #define BGP_FLAG_MED_MISSING_AS_WORST (1 << 2) | |
403 | #define BGP_FLAG_MED_CONFED (1 << 3) | |
404 | #define BGP_FLAG_NO_DEFAULT_IPV4 (1 << 4) | |
405 | #define BGP_FLAG_NO_CLIENT_TO_CLIENT (1 << 5) | |
718e3744 | 406 | #define BGP_FLAG_COMPARE_ROUTER_ID (1 << 7) |
407 | #define BGP_FLAG_ASPATH_IGNORE (1 << 8) | |
408 | #define BGP_FLAG_IMPORT_CHECK (1 << 9) | |
409 | #define BGP_FLAG_NO_FAST_EXT_FAILOVER (1 << 10) | |
848973c7 | 410 | #define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1 << 11) |
b0965c44 | 411 | |
412 | /* This flag is set when we have full BGP Graceful-Restart mode enable */ | |
538621f2 | 413 | #define BGP_FLAG_GRACEFUL_RESTART (1 << 12) |
b0965c44 | 414 | |
6811845b | 415 | #define BGP_FLAG_ASPATH_CONFED (1 << 13) |
2fdd455c | 416 | #define BGP_FLAG_ASPATH_MULTIPATH_RELAX (1 << 14) |
8bd9d948 | 417 | #define BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY (1 << 15) |
907f92c8 | 418 | #define BGP_FLAG_DISABLE_NH_CONNECTED_CHK (1 << 16) |
219178b6 | 419 | #define BGP_FLAG_MULTIPATH_RELAX_AS_SET (1 << 17) |
078430f6 | 420 | #define BGP_FLAG_FORCE_STATIC_PROCESS (1 << 18) |
5623e905 | 421 | #define BGP_FLAG_SHOW_HOSTNAME (1 << 19) |
6a9a3cde | 422 | #define BGP_FLAG_GR_PRESERVE_FWD (1 << 20) |
7f323236 | 423 | #define BGP_FLAG_GRACEFUL_SHUTDOWN (1 << 21) |
9f822fa2 | 424 | #define BGP_FLAG_DELETE_IN_PROGRESS (1 << 22) |
cfd47646 | 425 | #define BGP_FLAG_SELECT_DEFER_DISABLE (1 << 23) |
d6e3c15b | 426 | #define BGP_FLAG_GR_DISABLE_EOR (1 << 24) |
b0965c44 | 427 | |
2ba1fe69 | 428 | enum global_mode GLOBAL_GR_FSM[BGP_GLOBAL_GR_MODE] |
429 | [BGP_GLOBAL_GR_EVENT_CMD]; | |
b0965c44 | 430 | enum global_mode global_gr_present_state; |
431 | ||
2d3dd828 | 432 | /* This variable stores the current Graceful Restart state of Zebra |
433 | * - ZEBRA_GR_ENABLE / ZEBRA_GR_DISABLE | |
434 | */ | |
435 | enum zebra_gr_mode present_zebra_gr_state; | |
436 | ||
d62a17ae | 437 | /* BGP Per AF flags */ |
d7c0a89a | 438 | uint16_t af_flags[AFI_MAX][SAFI_MAX]; |
f4882003 | 439 | #define BGP_CONFIG_DAMPENING (1 << 0) |
2c29b18a | 440 | /* l2vpn evpn flags - 1 << 0 is used for DAMPENNG */ |
f4882003 MK |
441 | #define BGP_L2VPN_EVPN_ADVERTISE_IPV4_UNICAST (1 << 1) |
442 | #define BGP_L2VPN_EVPN_ADVERTISE_IPV6_UNICAST (1 << 2) | |
443 | #define BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV4 (1 << 3) | |
444 | #define BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV6 (1 << 4) | |
445 | /* import/export between address families */ | |
446 | #define BGP_CONFIG_VRF_TO_MPLSVPN_EXPORT (1 << 5) | |
447 | #define BGP_CONFIG_MPLSVPN_TO_VRF_IMPORT (1 << 6) | |
448 | /* vrf-route leaking flags */ | |
449 | #define BGP_CONFIG_VRF_TO_VRF_IMPORT (1 << 7) | |
450 | #define BGP_CONFIG_VRF_TO_VRF_EXPORT (1 << 8) | |
154faa50 | 451 | |
210ec2a0 AS |
452 | /* BGP per AF peer count */ |
453 | uint32_t af_peer_count[AFI_MAX][SAFI_MAX]; | |
454 | ||
d62a17ae | 455 | /* Route table for next-hop lookup cache. */ |
456 | struct bgp_table *nexthop_cache_table[AFI_MAX]; | |
6aeb9e78 | 457 | |
d62a17ae | 458 | /* Route table for import-check */ |
459 | struct bgp_table *import_check_table[AFI_MAX]; | |
6aeb9e78 | 460 | |
d62a17ae | 461 | struct bgp_table *connected_table[AFI_MAX]; |
6aeb9e78 | 462 | |
d62a17ae | 463 | struct hash *address_hash; |
6aeb9e78 | 464 | |
db0e1937 MK |
465 | /* DB for all local tunnel-ips - used mainly for martian checks |
466 | Currently it only has all VxLan tunnel IPs*/ | |
467 | struct hash *tip_hash; | |
468 | ||
d62a17ae | 469 | /* Static route configuration. */ |
470 | struct bgp_table *route[AFI_MAX][SAFI_MAX]; | |
718e3744 | 471 | |
d62a17ae | 472 | /* Aggregate address configuration. */ |
473 | struct bgp_table *aggregate[AFI_MAX][SAFI_MAX]; | |
718e3744 | 474 | |
d62a17ae | 475 | /* BGP routing information base. */ |
476 | struct bgp_table *rib[AFI_MAX][SAFI_MAX]; | |
718e3744 | 477 | |
d62a17ae | 478 | /* BGP table route-map. */ |
479 | struct bgp_rmap table_map[AFI_MAX][SAFI_MAX]; | |
73ac8160 | 480 | |
d62a17ae | 481 | /* BGP redistribute configuration. */ |
482 | struct list *redist[AFI_MAX][ZEBRA_ROUTE_MAX]; | |
718e3744 | 483 | |
318cac96 | 484 | /* Allocate MPLS labels */ |
d7c0a89a | 485 | uint8_t allocate_mpls_labels[AFI_MAX][SAFI_MAX]; |
318cac96 | 486 | |
f3d32faa PG |
487 | /* Allocate hash entries to store policy routing information |
488 | * The hash are used to host pbr rules somewhere. | |
489 | * Actually, pbr will only be used by flowspec | |
490 | * those hash elements will have relationship together as | |
491 | * illustrated in below diagram: | |
492 | * | |
493 | * pbr_action a <----- pbr_match i <--- pbr_match_entry 1..n | |
494 | * <----- pbr_match j <--- pbr_match_entry 1..m | |
27e376d4 | 495 | * <----- pbr_rule k |
f3d32faa PG |
496 | * |
497 | * - here in BGP structure, the list of match and actions will | |
498 | * stand for the list of ipset sets, and table_ids in the kernel | |
499 | * - the arrow above between pbr_match and pbr_action indicate | |
500 | * that a backpointer permits match to find the action | |
501 | * - the arrow betwen match_entry and match is a hash list | |
502 | * contained in match, that lists the whole set of entries | |
503 | */ | |
504 | struct hash *pbr_match_hash; | |
27e376d4 | 505 | struct hash *pbr_rule_hash; |
f3d32faa PG |
506 | struct hash *pbr_action_hash; |
507 | ||
d62a17ae | 508 | /* timer to re-evaluate neighbor default-originate route-maps */ |
509 | struct thread *t_rmap_def_originate_eval; | |
0de4848d DS |
510 | #define RMAP_DEFAULT_ORIGINATE_EVAL_TIMER 5 |
511 | ||
d62a17ae | 512 | /* BGP distance configuration. */ |
d7c0a89a QY |
513 | uint8_t distance_ebgp[AFI_MAX][SAFI_MAX]; |
514 | uint8_t distance_ibgp[AFI_MAX][SAFI_MAX]; | |
515 | uint8_t distance_local[AFI_MAX][SAFI_MAX]; | |
d62a17ae | 516 | |
517 | /* BGP default local-preference. */ | |
d7c0a89a | 518 | uint32_t default_local_pref; |
d62a17ae | 519 | |
520 | /* BGP default subgroup pkt queue max */ | |
d7c0a89a | 521 | uint32_t default_subgroup_pkt_queue_max; |
d62a17ae | 522 | |
523 | /* BGP default timer. */ | |
d7c0a89a QY |
524 | uint32_t default_holdtime; |
525 | uint32_t default_keepalive; | |
5d5393b9 | 526 | uint32_t default_connect_retry; |
d62a17ae | 527 | |
528 | /* BGP graceful restart */ | |
d7c0a89a QY |
529 | uint32_t restart_time; |
530 | uint32_t stalepath_time; | |
b0965c44 | 531 | uint32_t select_defer_time; |
532 | struct graceful_restart_info gr_info[AFI_MAX][SAFI_MAX]; | |
2d3dd828 | 533 | uint32_t rib_stale_time; |
534 | ||
cfd47646 | 535 | #define BGP_ROUTE_SELECT_DELAY 1 |
536 | #define BGP_MAX_BEST_ROUTE_SELECT 10000 | |
d62a17ae | 537 | /* Maximum-paths configuration */ |
538 | struct bgp_maxpaths_cfg { | |
d7c0a89a QY |
539 | uint16_t maxpaths_ebgp; |
540 | uint16_t maxpaths_ibgp; | |
541 | uint16_t ibgp_flags; | |
5e242b0d | 542 | #define BGP_FLAG_IBGP_MULTIPATH_SAME_CLUSTERLEN (1 << 0) |
d62a17ae | 543 | } maxpaths[AFI_MAX][SAFI_MAX]; |
cb1faec9 | 544 | |
555e09d4 QY |
545 | _Atomic uint32_t wpkt_quanta; // max # packets to write per i/o cycle |
546 | _Atomic uint32_t rpkt_quanta; // max # packets to read per i/o cycle | |
547 | ||
37a333fe QY |
548 | /* Automatic coalesce adjust on/off */ |
549 | bool heuristic_coalesce; | |
14b8641a QY |
550 | /* Actual coalesce time */ |
551 | uint32_t coalesce_time; | |
adbac85e | 552 | |
f26845f9 QY |
553 | /* Auto-shutdown new peers */ |
554 | bool autoshutdown; | |
555 | ||
dcc68b5e | 556 | struct bgp_addpath_bgp_data tx_addpath; |
65efcfce LB |
557 | |
558 | #if ENABLE_BGP_VNC | |
d62a17ae | 559 | struct rfapi_cfg *rfapi_cfg; |
560 | struct rfapi *rfapi; | |
65efcfce | 561 | #endif |
19df7279 | 562 | |
d62a17ae | 563 | /* EVPN related information */ |
14c1a7bf | 564 | |
d62a17ae | 565 | /* EVI hash table */ |
566 | struct hash *vnihash; | |
14c1a7bf | 567 | |
1a98c087 MK |
568 | /* EVPN enable - advertise gateway macip routes */ |
569 | int advertise_gw_macip; | |
570 | ||
d62a17ae | 571 | /* EVPN enable - advertise local VNIs and their MACs etc. */ |
572 | int advertise_all_vni; | |
14c1a7bf | 573 | |
9dac9fc8 DA |
574 | /* RFC 8212 - prevent route leaks. */ |
575 | int ebgp_requires_policy; | |
576 | #define DEFAULT_EBGP_POLICY_DISABLED 0 | |
577 | #define DEFAULT_EBGP_POLICY_ENABLED 1 | |
578 | ||
fb29348a DA |
579 | /* draft-ietf-idr-deprecate-as-set-confed-set |
580 | * Reject aspaths with AS_SET and/or AS_CONFED_SET. | |
581 | */ | |
582 | bool reject_as_sets; | |
583 | #define BGP_REJECT_AS_SETS_DISABLED 0 | |
584 | #define BGP_REJECT_AS_SETS_ENABLED 1 | |
585 | ||
85c8d83b CS |
586 | struct bgp_evpn_info *evpn_info; |
587 | ||
bf1061d8 VB |
588 | /* EVPN - use RFC 8365 to auto-derive RT */ |
589 | int advertise_autort_rfc8365; | |
590 | ||
fd069644 DS |
591 | /* |
592 | * Flooding mechanism for BUM packets for VxLAN-EVPN. | |
593 | */ | |
594 | enum vxlan_flood_control vxlan_flood_ctrl; | |
595 | ||
d62a17ae | 596 | /* Hash table of Import RTs to EVIs */ |
597 | struct hash *import_rt_hash; | |
14c1a7bf | 598 | |
10ebe1ab MK |
599 | /* Hash table of VRF import RTs to VRFs */ |
600 | struct hash *vrf_import_rt_hash; | |
601 | ||
fe1dc5a3 MK |
602 | /* L3-VNI corresponding to this vrf */ |
603 | vni_t l3vni; | |
604 | ||
605 | /* router-mac to be used in mac-ip routes for this vrf */ | |
606 | struct ethaddr rmac; | |
607 | ||
b67a60d2 | 608 | /* originator ip - to be used as NH for type-5 routes */ |
609 | struct in_addr originator_ip; | |
610 | ||
0483af6e | 611 | /* SVI associated with the L3-VNI corresponding to this vrf */ |
612 | ifindex_t l3vni_svi_ifindex; | |
613 | ||
fe1dc5a3 MK |
614 | /* vrf flags */ |
615 | uint32_t vrf_flags; | |
676f83b9 | 616 | #define BGP_VRF_AUTO (1 << 0) |
154faa50 MK |
617 | #define BGP_VRF_IMPORT_RT_CFGD (1 << 1) |
618 | #define BGP_VRF_EXPORT_RT_CFGD (1 << 2) | |
619 | #define BGP_VRF_RD_CFGD (1 << 3) | |
23e386ac MK |
620 | #define BGP_VRF_L3VNI_PREFIX_ROUTES_ONLY (1 << 4) |
621 | ||
676f83b9 | 622 | /* unique ID for auto derivation of RD for this vrf */ |
623 | uint16_t vrf_rd_id; | |
624 | ||
92708db6 | 625 | /* Automatically derived RD for this VRF */ |
626 | struct prefix_rd vrf_prd_auto; | |
627 | ||
676f83b9 | 628 | /* RD for this VRF */ |
629 | struct prefix_rd vrf_prd; | |
c581d8b0 MK |
630 | |
631 | /* import rt list for the vrf instance */ | |
632 | struct list *vrf_import_rtl; | |
633 | ||
634 | /* export rt list for the vrf instance */ | |
635 | struct list *vrf_export_rtl; | |
fe1dc5a3 | 636 | |
6a8657d0 MK |
637 | /* list of corresponding l2vnis (struct bgpevpn) */ |
638 | struct list *l2vnis; | |
639 | ||
53c84f78 MK |
640 | /* route map for advertise ipv4/ipv6 unicast (type-5 routes) */ |
641 | struct bgp_rmap adv_cmd_rmap[AFI_MAX][SAFI_MAX]; | |
642 | ||
e70e9f8e | 643 | struct vpn_policy vpn_policy[AFI_MAX]; |
ddb5b488 | 644 | |
4762c213 PG |
645 | struct bgp_pbr_config *bgp_pbr_cfg; |
646 | ||
50f74cf1 | 647 | /* local esi hash table */ |
648 | struct hash *esihash; | |
649 | ||
36dc7588 | 650 | /* Count of peers in established state */ |
651 | uint32_t established_peers; | |
652 | ||
d62a17ae | 653 | QOBJ_FIELDS |
718e3744 | 654 | }; |
19df7279 | 655 | DECLARE_QOBJ_TYPE(bgp) |
718e3744 | 656 | |
2b9bcf30 DL |
657 | DECLARE_HOOK(bgp_inst_delete, (struct bgp *bgp), (bgp)) |
658 | DECLARE_HOOK(bgp_inst_config_write, | |
659 | (struct bgp *bgp, struct vty *vty), | |
660 | (bgp, vty)) | |
661 | ||
cfd47646 | 662 | /* Thread callback information */ |
663 | struct afi_safi_info { | |
664 | afi_t afi; | |
665 | safi_t safi; | |
666 | struct bgp *bgp; | |
667 | }; | |
668 | ||
2a3d5731 | 669 | #define BGP_ROUTE_ADV_HOLD(bgp) (bgp->main_peers_update_hold) |
d889623f | 670 | |
d62a17ae | 671 | #define IS_BGP_INST_KNOWN_TO_ZEBRA(bgp) \ |
672 | (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT \ | |
673 | || (bgp->inst_type == BGP_INSTANCE_TYPE_VRF \ | |
674 | && bgp->vrf_id != VRF_UNKNOWN)) | |
ad4cbda1 | 675 | |
f009ff26 | 676 | #define BGP_SELECT_DEFER_DISABLE(bgp) \ |
677 | (bgp_flag_check(bgp, BGP_FLAG_SELECT_DEFER_DISABLE)) | |
cfd47646 | 678 | |
718e3744 | 679 | /* BGP peer-group support. */ |
d62a17ae | 680 | struct peer_group { |
681 | /* Name of the peer-group. */ | |
682 | char *name; | |
718e3744 | 683 | |
d62a17ae | 684 | /* Pointer to BGP. */ |
685 | struct bgp *bgp; | |
718e3744 | 686 | |
d62a17ae | 687 | /* Peer-group client list. */ |
688 | struct list *peer; | |
f14e6fdb | 689 | |
d62a17ae | 690 | /** Dynamic neighbor listening ranges */ |
691 | struct list *listen_range[AFI_MAX]; | |
692 | ||
693 | /* Peer-group config */ | |
694 | struct peer *conf; | |
718e3744 | 695 | }; |
696 | ||
697 | /* BGP Notify message format. */ | |
d62a17ae | 698 | struct bgp_notify { |
d7c0a89a QY |
699 | uint8_t code; |
700 | uint8_t subcode; | |
d62a17ae | 701 | char *data; |
702 | bgp_size_t length; | |
d7c0a89a | 703 | uint8_t *raw_data; |
718e3744 | 704 | }; |
705 | ||
706 | /* Next hop self address. */ | |
d62a17ae | 707 | struct bgp_nexthop { |
708 | struct interface *ifp; | |
709 | struct in_addr v4; | |
710 | struct in6_addr v6_global; | |
711 | struct in6_addr v6_local; | |
718e3744 | 712 | }; |
713 | ||
a82478b9 DS |
714 | /* BGP addpath values */ |
715 | #define BGP_ADDPATH_RX 1 | |
716 | #define BGP_ADDPATH_TX 2 | |
717 | #define BGP_ADDPATH_ID_LEN 4 | |
718 | ||
adbac85e DW |
719 | #define BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE 1 |
720 | ||
3f54c705 | 721 | /* Route map direction */ |
2a3d5731 DW |
722 | #define RMAP_IN 0 |
723 | #define RMAP_OUT 1 | |
724 | #define RMAP_MAX 2 | |
fee0f4c6 | 725 | |
a0903cd2 DA |
726 | #define BGP_DEFAULT_TTL 1 |
727 | ||
65efcfce LB |
728 | #include "filter.h" |
729 | ||
718e3744 | 730 | /* BGP filter structure. */ |
d62a17ae | 731 | struct bgp_filter { |
732 | /* Distribute-list. */ | |
733 | struct { | |
734 | char *name; | |
735 | struct access_list *alist; | |
736 | } dlist[FILTER_MAX]; | |
737 | ||
738 | /* Prefix-list. */ | |
739 | struct { | |
740 | char *name; | |
741 | struct prefix_list *plist; | |
742 | } plist[FILTER_MAX]; | |
743 | ||
744 | /* Filter-list. */ | |
745 | struct { | |
746 | char *name; | |
747 | struct as_list *aslist; | |
748 | } aslist[FILTER_MAX]; | |
749 | ||
750 | /* Route-map. */ | |
751 | struct { | |
752 | char *name; | |
753 | struct route_map *map; | |
754 | } map[RMAP_MAX]; | |
755 | ||
756 | /* Unsuppress-map. */ | |
757 | struct { | |
758 | char *name; | |
759 | struct route_map *map; | |
760 | } usmap; | |
718e3744 | 761 | }; |
762 | ||
6d85b15b JBD |
763 | /* IBGP/EBGP identifier. We also have a CONFED peer, which is to say, |
764 | a peer who's AS is part of our Confederation. */ | |
d62a17ae | 765 | typedef enum { |
faa16034 DS |
766 | BGP_PEER_UNSPECIFIED, |
767 | BGP_PEER_IBGP, | |
d62a17ae | 768 | BGP_PEER_EBGP, |
769 | BGP_PEER_INTERNAL, | |
770 | BGP_PEER_CONFED, | |
6d85b15b JBD |
771 | } bgp_peer_sort_t; |
772 | ||
d6661008 DS |
773 | /* BGP message header and packet size. */ |
774 | #define BGP_MARKER_SIZE 16 | |
775 | #define BGP_HEADER_SIZE 19 | |
776 | #define BGP_MAX_PACKET_SIZE 4096 | |
0a91ff55 | 777 | #define BGP_MAX_PACKET_SIZE_OVERFLOW 1024 |
d6661008 | 778 | |
3f9c7369 DS |
779 | /* |
780 | * Trigger delay for bgp_announce_route(). | |
781 | */ | |
782 | #define BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS 100 | |
783 | #define BGP_ANNOUNCE_ROUTE_DELAY_MS 500 | |
784 | ||
d62a17ae | 785 | struct peer_af { |
786 | /* back pointer to the peer */ | |
787 | struct peer *peer; | |
3f9c7369 | 788 | |
d62a17ae | 789 | /* which subgroup the peer_af belongs to */ |
790 | struct update_subgroup *subgroup; | |
3f9c7369 | 791 | |
d62a17ae | 792 | /* for being part of an update subgroup's peer list */ |
793 | LIST_ENTRY(peer_af) subgrp_train; | |
3f9c7369 | 794 | |
d62a17ae | 795 | /* for being part of a packet's peer list */ |
796 | LIST_ENTRY(peer_af) pkt_train; | |
3f9c7369 | 797 | |
d62a17ae | 798 | struct bpacket *next_pkt_to_send; |
3f9c7369 | 799 | |
d62a17ae | 800 | /* |
801 | * Trigger timer for bgp_announce_route(). | |
802 | */ | |
803 | struct thread *t_announce_route; | |
3f9c7369 | 804 | |
d62a17ae | 805 | afi_t afi; |
806 | safi_t safi; | |
807 | int afid; | |
3f9c7369 | 808 | }; |
b0965c44 | 809 | /* BGP GR per peer ds */ |
810 | ||
2ba1fe69 | 811 | #define BGP_PEER_GR_MODE 5 |
812 | #define BGP_PEER_GR_EVENT_CMD 6 | |
b0965c44 | 813 | |
814 | enum peer_mode { | |
815 | PEER_HELPER = 0, | |
816 | PEER_GR, | |
817 | PEER_DISABLE, | |
818 | PEER_INVALID, | |
819 | PEER_GLOBAL_INHERIT /* This is the default mode */ | |
820 | ||
821 | }; | |
822 | ||
823 | enum peer_gr_command { | |
824 | PEER_GR_CMD = 0, | |
825 | NO_PEER_GR_CMD, | |
2ba1fe69 | 826 | PEER_DISABLE_CMD, |
b0965c44 | 827 | NO_PEER_DISABLE_CMD, |
828 | PEER_HELPER_CMD, | |
829 | NO_PEER_HELPER_CMD | |
830 | }; | |
831 | ||
832 | typedef unsigned int (*bgp_peer_gr_action_ptr)(struct peer *, int, int); | |
833 | ||
834 | struct bgp_peer_gr { | |
835 | enum peer_mode next_state; | |
836 | bgp_peer_gr_action_ptr action_fun; | |
837 | }; | |
838 | ||
3f9c7369 | 839 | |
718e3744 | 840 | /* BGP neighbor structure. */ |
d62a17ae | 841 | struct peer { |
842 | /* BGP structure. */ | |
843 | struct bgp *bgp; | |
844 | ||
845 | /* reference count, primarily to allow bgp_process'ing of route_node's | |
846 | * to be done after a struct peer is deleted. | |
847 | * | |
848 | * named 'lock' for hysterical reasons within Quagga. | |
849 | */ | |
850 | int lock; | |
851 | ||
852 | /* BGP peer group. */ | |
853 | struct peer_group *group; | |
854 | uint64_t version[AFI_MAX][SAFI_MAX]; | |
855 | ||
856 | /* BGP peer_af structures, per configured AF on this peer */ | |
857 | struct peer_af *peer_af_array[BGP_AF_MAX]; | |
858 | ||
859 | /* Peer's remote AS number. */ | |
860 | int as_type; | |
861 | as_t as; | |
862 | ||
863 | /* Peer's local AS number. */ | |
864 | as_t local_as; | |
865 | ||
866 | bgp_peer_sort_t sort; | |
867 | ||
868 | /* Peer's Change local AS number. */ | |
869 | as_t change_local_as; | |
870 | ||
871 | /* Remote router ID. */ | |
872 | struct in_addr remote_id; | |
873 | ||
874 | /* Local router ID. */ | |
875 | struct in_addr local_id; | |
876 | ||
877 | /* Packet receive and send buffer. */ | |
424ab01d QY |
878 | pthread_mutex_t io_mtx; // guards ibuf, obuf |
879 | struct stream_fifo *ibuf; // packets waiting to be processed | |
880 | struct stream_fifo *obuf; // packets waiting to be written | |
881 | ||
74ffbfe6 QY |
882 | struct ringbuf *ibuf_work; // WiP buffer used by bgp_read() only |
883 | struct stream *obuf_work; // WiP buffer used to construct packets | |
424ab01d QY |
884 | |
885 | struct stream *curr; // the current packet being parsed | |
d62a17ae | 886 | |
887 | /* We use a separate stream to encode MP_REACH_NLRI for efficient | |
424ab01d | 888 | * NLRI packing. peer->obuf_work stores all the other attributes. The |
d62a17ae | 889 | * actual packet is then constructed by concatenating the two. |
890 | */ | |
891 | struct stream *scratch; | |
892 | ||
893 | /* the doppelganger peer structure, due to dual TCP conn setup */ | |
894 | struct peer *doppelganger; | |
895 | ||
896 | /* Status of the peer. */ | |
897 | int status; | |
898 | int ostatus; | |
899 | ||
900 | /* FSM events, stored for debug purposes. | |
901 | * Note: uchar used for reduced memory usage. | |
902 | */ | |
903 | unsigned char cur_event; | |
904 | unsigned char last_event; | |
905 | unsigned char last_major_event; | |
906 | ||
907 | /* Peer index, used for dumping TABLE_DUMP_V2 format */ | |
908 | uint16_t table_dump_index; | |
909 | ||
910 | /* Peer information */ | |
911 | int fd; /* File descriptor */ | |
912 | int ttl; /* TTL of TCP connection to the peer. */ | |
913 | int rtt; /* Estimated round-trip-time from TCP_INFO */ | |
914 | int gtsm_hops; /* minimum hopcount to peer */ | |
915 | char *desc; /* Description of the peer. */ | |
916 | unsigned short port; /* Destination port for peer */ | |
917 | char *host; /* Printable address of the peer. */ | |
918 | union sockunion su; /* Sockunion address of the peer. */ | |
a80beece | 919 | #define BGP_PEER_SU_UNSPEC(peer) (peer->su.sa.sa_family == AF_UNSPEC) |
d62a17ae | 920 | time_t uptime; /* Last Up/Down time */ |
921 | time_t readtime; /* Last read time */ | |
922 | time_t resettime; /* Last reset time */ | |
923 | ||
d62a17ae | 924 | char *conf_if; /* neighbor interface config name. */ |
925 | struct interface *ifp; /* corresponding interface */ | |
926 | char *ifname; /* bind interface name. */ | |
927 | char *update_if; | |
928 | union sockunion *update_source; | |
929 | ||
930 | union sockunion *su_local; /* Sockunion of local address. */ | |
931 | union sockunion *su_remote; /* Sockunion of remote address. */ | |
932 | int shared_network; /* Is this peer shared same network. */ | |
933 | struct bgp_nexthop nexthop; /* Nexthop */ | |
934 | ||
935 | /* Peer address family configuration. */ | |
d7c0a89a QY |
936 | uint8_t afc[AFI_MAX][SAFI_MAX]; |
937 | uint8_t afc_nego[AFI_MAX][SAFI_MAX]; | |
938 | uint8_t afc_adv[AFI_MAX][SAFI_MAX]; | |
939 | uint8_t afc_recv[AFI_MAX][SAFI_MAX]; | |
d62a17ae | 940 | |
941 | /* Capability flags (reset in bgp_stop) */ | |
d7c0a89a | 942 | uint32_t cap; |
718e3744 | 943 | #define PEER_CAP_REFRESH_ADV (1 << 0) /* refresh advertised */ |
944 | #define PEER_CAP_REFRESH_OLD_RCV (1 << 1) /* refresh old received */ | |
945 | #define PEER_CAP_REFRESH_NEW_RCV (1 << 2) /* refresh rfc received */ | |
946 | #define PEER_CAP_DYNAMIC_ADV (1 << 3) /* dynamic advertised */ | |
947 | #define PEER_CAP_DYNAMIC_RCV (1 << 4) /* dynamic received */ | |
538621f2 | 948 | #define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */ |
949 | #define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */ | |
0b2aa3a0 PJ |
950 | #define PEER_CAP_AS4_ADV (1 << 7) /* as4 advertised */ |
951 | #define PEER_CAP_AS4_RCV (1 << 8) /* as4 received */ | |
fe7d2a48 DS |
952 | #define PEER_CAP_RESTART_BIT_ADV (1 << 9) /* sent restart state */ |
953 | #define PEER_CAP_RESTART_BIT_RCV (1 << 10) /* peer restart state */ | |
a82478b9 DS |
954 | #define PEER_CAP_ADDPATH_ADV (1 << 11) /* addpath advertised */ |
955 | #define PEER_CAP_ADDPATH_RCV (1 << 12) /* addpath received */ | |
c744aa9f DS |
956 | #define PEER_CAP_ENHE_ADV (1 << 13) /* Extended nexthop advertised */ |
957 | #define PEER_CAP_ENHE_RCV (1 << 14) /* Extended nexthop received */ | |
04b6bdc0 DW |
958 | #define PEER_CAP_HOSTNAME_ADV (1 << 15) /* hostname advertised */ |
959 | #define PEER_CAP_HOSTNAME_RCV (1 << 16) /* hostname received */ | |
718e3744 | 960 | |
d62a17ae | 961 | /* Capability flags (reset in bgp_stop) */ |
d7c0a89a | 962 | uint32_t af_cap[AFI_MAX][SAFI_MAX]; |
718e3744 | 963 | #define PEER_CAP_ORF_PREFIX_SM_ADV (1 << 0) /* send-mode advertised */ |
964 | #define PEER_CAP_ORF_PREFIX_RM_ADV (1 << 1) /* receive-mode advertised */ | |
965 | #define PEER_CAP_ORF_PREFIX_SM_RCV (1 << 2) /* send-mode received */ | |
966 | #define PEER_CAP_ORF_PREFIX_RM_RCV (1 << 3) /* receive-mode received */ | |
967 | #define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1 << 4) /* send-mode received */ | |
968 | #define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1 << 5) /* receive-mode received */ | |
93406d87 | 969 | #define PEER_CAP_RESTART_AF_RCV (1 << 6) /* graceful restart afi/safi received */ |
970 | #define PEER_CAP_RESTART_AF_PRESERVE_RCV (1 << 7) /* graceful restart afi/safi F-bit received */ | |
a82478b9 DS |
971 | #define PEER_CAP_ADDPATH_AF_TX_ADV (1 << 8) /* addpath tx advertised */ |
972 | #define PEER_CAP_ADDPATH_AF_TX_RCV (1 << 9) /* addpath tx received */ | |
973 | #define PEER_CAP_ADDPATH_AF_RX_ADV (1 << 10) /* addpath rx advertised */ | |
974 | #define PEER_CAP_ADDPATH_AF_RX_RCV (1 << 11) /* addpath rx received */ | |
8a92a8a0 DS |
975 | #define PEER_CAP_ENHE_AF_ADV (1 << 12) /* Extended nexthopi afi/safi advertised */ |
976 | #define PEER_CAP_ENHE_AF_RCV (1 << 13) /* Extended nexthop afi/safi received */ | |
977 | #define PEER_CAP_ENHE_AF_NEGO (1 << 14) /* Extended nexthop afi/safi negotiated */ | |
718e3744 | 978 | |
d62a17ae | 979 | /* Global configuration flags. */ |
9fb964de PM |
980 | /* |
981 | * Parallel array to flags that indicates whether each flag originates | |
982 | * from a peer-group or if it is config that is specific to this | |
983 | * individual peer. If a flag is set independent of the peer-group, the | |
984 | * same bit should be set here. If this peer is a peer-group, this | |
985 | * memory region should be all zeros. | |
986 | * | |
987 | * The assumption is that the default state for all flags is unset, | |
988 | * so if a flag is unset, the corresponding override flag is unset too. | |
989 | * However if a flag is set, the corresponding override flag is set. | |
990 | */ | |
991 | uint32_t flags_override; | |
992 | /* | |
993 | * Parallel array to flags that indicates whether the default behavior | |
994 | * of *flags_override* should be inverted. If a flag is unset and the | |
995 | * corresponding invert flag is set, the corresponding override flag | |
996 | * would be set. However if a flag is set and the corresponding invert | |
997 | * flag is unset, the corresponding override flag would be unset. | |
998 | * | |
999 | * This can be used for attributes like *send-community*, which are | |
1000 | * implicitely enabled and have to be disabled explicitely, compared to | |
1001 | * 'normal' attributes like *next-hop-self* which are implicitely set. | |
1002 | * | |
1003 | * All operations dealing with flags should apply the following boolean | |
1004 | * logic to keep the internal flag system in a sane state: | |
1005 | * | |
1006 | * value=0 invert=0 Inherit flag if member, otherwise unset flag | |
1007 | * value=0 invert=1 Unset flag unconditionally | |
1008 | * value=1 invert=0 Set flag unconditionally | |
1009 | * value=1 invert=1 Inherit flag if member, otherwise set flag | |
1010 | * | |
1011 | * Contrary to the implementation of *flags_override*, the flag | |
1012 | * inversion state can be set either on the peer OR the peer *and* the | |
1013 | * peer-group. This was done on purpose, as the inversion state of a | |
1014 | * flag can be determined on either the peer or the peer-group. | |
1015 | * | |
1016 | * Example: Enabling the cisco configuration mode inverts all flags | |
1017 | * related to *send-community* unconditionally for both peer-groups and | |
1018 | * peers. | |
1019 | * | |
1020 | * This behavior is different for interface peers though, which enable | |
1021 | * the *extended-nexthop* flag by default, which regular peers do not. | |
1022 | * As the peer-group can contain both regular and interface peers, the | |
1023 | * flag inversion state must be set on the peer only. | |
1024 | * | |
1025 | * When a peer inherits the configuration from a peer-group and the | |
1026 | * inversion state of the flag differs between peer and peer-group, the | |
1027 | * newly set value must equal to the inverted state of the peer-group. | |
1028 | */ | |
1029 | uint32_t flags_invert; | |
1030 | /* | |
1031 | * Effective array for storing the peer/peer-group flags. In case of a | |
1032 | * peer-group, the peer-specific overrides (see flags_override and | |
1033 | * flags_invert) must be respected. | |
1034 | */ | |
d7c0a89a | 1035 | uint32_t flags; |
718e3744 | 1036 | #define PEER_FLAG_PASSIVE (1 << 0) /* passive mode */ |
1037 | #define PEER_FLAG_SHUTDOWN (1 << 1) /* shutdown */ | |
1038 | #define PEER_FLAG_DONT_CAPABILITY (1 << 2) /* dont-capability */ | |
1039 | #define PEER_FLAG_OVERRIDE_CAPABILITY (1 << 3) /* override-capability */ | |
1040 | #define PEER_FLAG_STRICT_CAP_MATCH (1 << 4) /* strict-match */ | |
c9502438 | 1041 | #define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 5) /* dynamic capability */ |
6ffd2079 | 1042 | #define PEER_FLAG_DISABLE_CONNECTED_CHECK (1 << 6) /* disable-connected-check */ |
c9502438 | 1043 | #define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 7) /* local-as no-prepend */ |
9d3f9705 | 1044 | #define PEER_FLAG_LOCAL_AS_REPLACE_AS (1 << 8) /* local-as no-prepend replace-as */ |
47cbc09b PM |
1045 | #define PEER_FLAG_DELETE (1 << 9) /* mark the peer for deleting */ |
1046 | #define PEER_FLAG_CONFIG_NODE (1 << 10) /* the node to update configs on */ | |
7f342629 DS |
1047 | #define PEER_FLAG_LONESOUL (1 << 11) |
1048 | #define PEER_FLAG_DYNAMIC_NEIGHBOR (1 << 12) /* dynamic neighbor */ | |
1049 | #define PEER_FLAG_CAPABILITY_ENHE (1 << 13) /* Extended next-hop (rfc 5549)*/ | |
88177fe3 | 1050 | #define PEER_FLAG_IFPEER_V6ONLY (1 << 14) /* if-based peer is v6 only */ |
47cbc09b PM |
1051 | #define PEER_FLAG_IS_RFAPI_HD (1 << 15) /* attached to rfapi HD */ |
1052 | #define PEER_FLAG_ENFORCE_FIRST_AS (1 << 16) /* enforce-first-as */ | |
b90a8e13 PM |
1053 | #define PEER_FLAG_ROUTEADV (1 << 17) /* route advertise */ |
1054 | #define PEER_FLAG_TIMER (1 << 18) /* keepalive & holdtime */ | |
1055 | #define PEER_FLAG_TIMER_CONNECT (1 << 19) /* connect timer */ | |
a14810f4 PM |
1056 | #define PEER_FLAG_PASSWORD (1 << 20) /* password */ |
1057 | #define PEER_FLAG_LOCAL_AS (1 << 21) /* local-as */ | |
1058 | #define PEER_FLAG_UPDATE_SOURCE (1 << 22) /* update-source */ | |
02a82b47 | 1059 | |
b0965c44 | 1060 | /* BGP-GR Peer related flags */ |
1061 | #define PEER_FLAG_GRACEFUL_RESTART_HELPER (1 << 23) /* Helper */ | |
1062 | #define PEER_FLAG_GRACEFUL_RESTART (1 << 24) /* Graceful Restart */ | |
1063 | #define PEER_FLAG_GRACEFUL_RESTART_GLOBAL_INHERIT (1 << 25) /* Global-Inherit */ | |
1064 | ||
1065 | /* | |
1066 | *GR-Disabled mode means unset PEER_FLAG_GRACEFUL_RESTART | |
1067 | *& PEER_FLAG_GRACEFUL_RESTART_HELPER | |
1068 | *and PEER_FLAG_GRACEFUL_RESTART_GLOBAL_INHERIT | |
1069 | */ | |
1070 | ||
2ba1fe69 | 1071 | struct bgp_peer_gr PEER_GR_FSM[BGP_PEER_GR_MODE][BGP_PEER_GR_EVENT_CMD]; |
b0965c44 | 1072 | enum peer_mode peer_gr_present_state; |
1073 | /* Non stop forwarding afi-safi count for BGP gr feature*/ | |
1074 | uint8_t nsf_af_count; | |
1075 | ||
1076 | uint8_t peer_gr_new_status_flag; | |
1077 | #define PEER_GRACEFUL_RESTART_NEW_STATE_HELPER (1 << 0) | |
1078 | #define PEER_GRACEFUL_RESTART_NEW_STATE_RESTART (1 << 1) | |
794b37d5 | 1079 | #define PEER_GRACEFUL_RESTART_NEW_STATE_INHERIT (1 << 2) |
b0965c44 | 1080 | |
d62a17ae | 1081 | /* outgoing message sent in CEASE_ADMIN_SHUTDOWN notify */ |
1082 | char *tx_shutdown_message; | |
718e3744 | 1083 | |
d62a17ae | 1084 | /* NSF mode (graceful restart) */ |
d7c0a89a | 1085 | uint8_t nsf[AFI_MAX][SAFI_MAX]; |
9e3b51a7 | 1086 | /* EOR Send time */ |
1087 | time_t eor_stime[AFI_MAX][SAFI_MAX]; | |
1088 | /* Last update packet sent time */ | |
1089 | time_t pkt_stime[AFI_MAX][SAFI_MAX]; | |
93406d87 | 1090 | |
04e1c5bb QY |
1091 | /* Peer Per AF flags */ |
1092 | /* | |
9fb964de PM |
1093 | * Please consult the comments for *flags_override*, *flags_invert* and |
1094 | * *flags* to understand what these three arrays do. The address-family | |
1095 | * specific attributes are being treated the exact same way as global | |
1096 | * peer attributes. | |
04e1c5bb QY |
1097 | */ |
1098 | uint32_t af_flags_override[AFI_MAX][SAFI_MAX]; | |
27c05d4d | 1099 | uint32_t af_flags_invert[AFI_MAX][SAFI_MAX]; |
d7c0a89a | 1100 | uint32_t af_flags[AFI_MAX][SAFI_MAX]; |
718e3744 | 1101 | #define PEER_FLAG_SEND_COMMUNITY (1 << 0) /* send-community */ |
1102 | #define PEER_FLAG_SEND_EXT_COMMUNITY (1 << 1) /* send-community ext. */ | |
1103 | #define PEER_FLAG_NEXTHOP_SELF (1 << 2) /* next-hop-self */ | |
1104 | #define PEER_FLAG_REFLECTOR_CLIENT (1 << 3) /* reflector-client */ | |
1105 | #define PEER_FLAG_RSERVER_CLIENT (1 << 4) /* route-server-client */ | |
1106 | #define PEER_FLAG_SOFT_RECONFIG (1 << 5) /* soft-reconfiguration */ | |
1107 | #define PEER_FLAG_AS_PATH_UNCHANGED (1 << 6) /* transparent-as */ | |
1108 | #define PEER_FLAG_NEXTHOP_UNCHANGED (1 << 7) /* transparent-next-hop */ | |
1109 | #define PEER_FLAG_MED_UNCHANGED (1 << 8) /* transparent-next-hop */ | |
1110 | #define PEER_FLAG_DEFAULT_ORIGINATE (1 << 9) /* default-originate */ | |
1111 | #define PEER_FLAG_REMOVE_PRIVATE_AS (1 << 10) /* remove-private-as */ | |
1112 | #define PEER_FLAG_ALLOWAS_IN (1 << 11) /* set allowas-in */ | |
794b37d5 | 1113 | #define PEER_FLAG_ORF_PREFIX_SM (1 << 12) /* orf capability send-mode */ |
718e3744 | 1114 | #define PEER_FLAG_ORF_PREFIX_RM (1 << 13) /* orf capability receive-mode */ |
1115 | #define PEER_FLAG_MAX_PREFIX (1 << 14) /* maximum prefix */ | |
1116 | #define PEER_FLAG_MAX_PREFIX_WARNING (1 << 15) /* maximum prefix warning-only */ | |
0df7c91f | 1117 | #define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1 << 16) /* leave link-local nexthop unchanged */ |
a538debe | 1118 | #define PEER_FLAG_FORCE_NEXTHOP_SELF (1 << 17) /* next-hop-self force */ |
5000f21c DS |
1119 | #define PEER_FLAG_REMOVE_PRIVATE_AS_ALL (1 << 18) /* remove-private-as all */ |
1120 | #define PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE (1 << 19) /* remove-private-as replace-as */ | |
c7122e14 | 1121 | #define PEER_FLAG_AS_OVERRIDE (1 << 20) /* as-override */ |
88b8ed8d | 1122 | #define PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE (1 << 21) /* remove-private-as all replace-as */ |
d93f7ffc | 1123 | #define PEER_FLAG_WEIGHT (1 << 24) /* weight */ |
aac9ef6c | 1124 | #define PEER_FLAG_ALLOWAS_IN_ORIGIN (1 << 25) /* allowas-in origin */ |
57d187bc | 1125 | #define PEER_FLAG_SEND_LARGE_COMMUNITY (1 << 26) /* Send large Communities */ |
fde246e8 | 1126 | #define PEER_FLAG_MAX_PREFIX_OUT (1 << 27) /* outgoing maximum prefix */ |
0df7c91f | 1127 | |
dcc68b5e MS |
1128 | enum bgp_addpath_strat addpath_type[AFI_MAX][SAFI_MAX]; |
1129 | ||
d62a17ae | 1130 | /* MD5 password */ |
1131 | char *password; | |
718e3744 | 1132 | |
d62a17ae | 1133 | /* default-originate route-map. */ |
1134 | struct { | |
1135 | char *name; | |
1136 | struct route_map *map; | |
1137 | } default_rmap[AFI_MAX][SAFI_MAX]; | |
718e3744 | 1138 | |
d62a17ae | 1139 | /* Peer status flags. */ |
d7c0a89a | 1140 | uint16_t sflags; |
718e3744 | 1141 | #define PEER_STATUS_ACCEPT_PEER (1 << 0) /* accept peer */ |
1142 | #define PEER_STATUS_PREFIX_OVERFLOW (1 << 1) /* prefix-overflow */ | |
1143 | #define PEER_STATUS_CAPABILITY_OPEN (1 << 2) /* capability open send */ | |
1144 | #define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */ | |
1145 | #define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */ | |
93406d87 | 1146 | #define PEER_STATUS_NSF_MODE (1 << 5) /* NSF aware peer */ |
1147 | #define PEER_STATUS_NSF_WAIT (1 << 6) /* wait comeback peer */ | |
718e3744 | 1148 | |
d62a17ae | 1149 | /* Peer status af flags (reset in bgp_stop) */ |
d7c0a89a | 1150 | uint16_t af_sflags[AFI_MAX][SAFI_MAX]; |
718e3744 | 1151 | #define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */ |
1152 | #define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */ | |
840fced9 DS |
1153 | #define PEER_STATUS_PREFIX_THRESHOLD (1 << 2) /* exceed prefix-threshold */ |
1154 | #define PEER_STATUS_PREFIX_LIMIT (1 << 3) /* exceed prefix-limit */ | |
1155 | #define PEER_STATUS_EOR_SEND (1 << 4) /* end-of-rib send to peer */ | |
1156 | #define PEER_STATUS_EOR_RECEIVED (1 << 5) /* end-of-rib received from peer */ | |
e0701b79 | 1157 | |
b90a8e13 | 1158 | /* Configured timer values. */ |
1588f6f4 QY |
1159 | _Atomic uint32_t holdtime; |
1160 | _Atomic uint32_t keepalive; | |
1161 | _Atomic uint32_t connect; | |
1162 | _Atomic uint32_t routeadv; | |
d62a17ae | 1163 | |
1164 | /* Timer values. */ | |
1588f6f4 QY |
1165 | _Atomic uint32_t v_start; |
1166 | _Atomic uint32_t v_connect; | |
1167 | _Atomic uint32_t v_holdtime; | |
1168 | _Atomic uint32_t v_keepalive; | |
1169 | _Atomic uint32_t v_routeadv; | |
1170 | _Atomic uint32_t v_pmax_restart; | |
1171 | _Atomic uint32_t v_gr_restart; | |
d62a17ae | 1172 | |
1173 | /* Threads. */ | |
1174 | struct thread *t_read; | |
424ab01d | 1175 | struct thread *t_write; |
d62a17ae | 1176 | struct thread *t_start; |
387f984e QY |
1177 | struct thread *t_connect_check_r; |
1178 | struct thread *t_connect_check_w; | |
d62a17ae | 1179 | struct thread *t_connect; |
1180 | struct thread *t_holdtime; | |
d62a17ae | 1181 | struct thread *t_routeadv; |
1182 | struct thread *t_pmax_restart; | |
1183 | struct thread *t_gr_restart; | |
1184 | struct thread *t_gr_stale; | |
56257a44 | 1185 | struct thread *t_generate_updgrp_packets; |
424ab01d | 1186 | struct thread *t_process_packet; |
d62a17ae | 1187 | |
49507a6f | 1188 | /* Thread flags. */ |
0545c373 | 1189 | _Atomic uint32_t thread_flags; |
b750b0ba QY |
1190 | #define PEER_THREAD_WRITES_ON (1 << 0) |
1191 | #define PEER_THREAD_READS_ON (1 << 1) | |
1192 | #define PEER_THREAD_KEEPALIVES_ON (1 << 2) | |
d62a17ae | 1193 | /* workqueues */ |
1194 | struct work_queue *clear_node_queue; | |
1195 | ||
a4d82a8a PZ |
1196 | #define PEER_TOTAL_RX(peer) \ |
1197 | atomic_load_explicit(&peer->open_in, memory_order_relaxed) \ | |
1198 | + atomic_load_explicit(&peer->update_in, memory_order_relaxed) \ | |
1199 | + atomic_load_explicit(&peer->notify_in, memory_order_relaxed) \ | |
1200 | + atomic_load_explicit(&peer->refresh_in, \ | |
1201 | memory_order_relaxed) \ | |
1202 | + atomic_load_explicit(&peer->keepalive_in, \ | |
1203 | memory_order_relaxed) \ | |
1204 | + atomic_load_explicit(&peer->dynamic_cap_in, \ | |
1205 | memory_order_relaxed) | |
1206 | ||
1207 | #define PEER_TOTAL_TX(peer) \ | |
1208 | atomic_load_explicit(&peer->open_out, memory_order_relaxed) \ | |
1209 | + atomic_load_explicit(&peer->update_out, \ | |
1210 | memory_order_relaxed) \ | |
1211 | + atomic_load_explicit(&peer->notify_out, \ | |
1212 | memory_order_relaxed) \ | |
1213 | + atomic_load_explicit(&peer->refresh_out, \ | |
1214 | memory_order_relaxed) \ | |
1215 | + atomic_load_explicit(&peer->keepalive_out, \ | |
1216 | memory_order_relaxed) \ | |
1217 | + atomic_load_explicit(&peer->dynamic_cap_out, \ | |
1218 | memory_order_relaxed) | |
0112e9e0 | 1219 | |
d62a17ae | 1220 | /* Statistics field */ |
996c9314 LB |
1221 | _Atomic uint32_t open_in; /* Open message input count */ |
1222 | _Atomic uint32_t open_out; /* Open message output count */ | |
1588f6f4 QY |
1223 | _Atomic uint32_t update_in; /* Update message input count */ |
1224 | _Atomic uint32_t update_out; /* Update message ouput count */ | |
1225 | _Atomic time_t update_time; /* Update message received time. */ | |
1226 | _Atomic uint32_t keepalive_in; /* Keepalive input count */ | |
1227 | _Atomic uint32_t keepalive_out; /* Keepalive output count */ | |
1228 | _Atomic uint32_t notify_in; /* Notify input count */ | |
1229 | _Atomic uint32_t notify_out; /* Notify output count */ | |
1230 | _Atomic uint32_t refresh_in; /* Route Refresh input count */ | |
1231 | _Atomic uint32_t refresh_out; /* Route Refresh output count */ | |
1232 | _Atomic uint32_t dynamic_cap_in; /* Dynamic Capability input count. */ | |
a4d82a8a | 1233 | _Atomic uint32_t dynamic_cap_out; /* Dynamic Capability output count. */ |
d62a17ae | 1234 | |
b4d46cc9 DL |
1235 | uint32_t stat_pfx_filter; |
1236 | uint32_t stat_pfx_aspath_loop; | |
1237 | uint32_t stat_pfx_originator_loop; | |
1238 | uint32_t stat_pfx_cluster_loop; | |
1239 | uint32_t stat_pfx_nh_invalid; | |
1240 | uint32_t stat_pfx_dup_withdraw; | |
1241 | uint32_t stat_upd_7606; /* RFC7606: treat-as-withdraw */ | |
1242 | ||
d62a17ae | 1243 | /* BGP state count */ |
d7c0a89a QY |
1244 | uint32_t established; /* Established */ |
1245 | uint32_t dropped; /* Dropped */ | |
d62a17ae | 1246 | |
1247 | /* Update delay related fields */ | |
d7c0a89a | 1248 | uint8_t update_delay_over; /* When this is set, BGP is no more waiting |
d62a17ae | 1249 | for EOR */ |
1250 | ||
1251 | /* Syncronization list and time. */ | |
1252 | struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX]; | |
1253 | time_t synctime; | |
1588f6f4 QY |
1254 | /* timestamp when the last UPDATE msg was written */ |
1255 | _Atomic time_t last_write; | |
1256 | /* timestamp when the last msg was written */ | |
1257 | _Atomic time_t last_update; | |
d62a17ae | 1258 | |
d62a17ae | 1259 | /* Notify data. */ |
1260 | struct bgp_notify notify; | |
1261 | ||
d62a17ae | 1262 | /* Filter structure. */ |
1263 | struct bgp_filter filter[AFI_MAX][SAFI_MAX]; | |
1264 | ||
70ee29b4 PM |
1265 | /* |
1266 | * Parallel array to filter that indicates whether each filter | |
1267 | * originates from a peer-group or if it is config that is specific to | |
1268 | * this individual peer. If a filter is set independent of the | |
1269 | * peer-group the appropriate bit should be set here. If this peer is a | |
1270 | * peer-group, this memory region should be all zeros. The assumption | |
1271 | * is that the default state for all flags is unset. Due to filters | |
1272 | * having a direction (e.g. in/out/...), this array has a third | |
1273 | * dimension for storing the overrides independently per direction. | |
1274 | * | |
1275 | * Notes: | |
1276 | * - if a filter for an individual peer is unset, the corresponding | |
1277 | * override flag is unset and the peer is considered to be back in | |
1278 | * sync with the peer-group. | |
1279 | * - This does *not* contain the filter values, rather it contains | |
1280 | * whether the filter in filter (struct bgp_filter) is peer-specific. | |
1281 | */ | |
1282 | uint8_t filter_override[AFI_MAX][SAFI_MAX][(FILTER_MAX > RMAP_MAX) | |
1283 | ? FILTER_MAX | |
1284 | : RMAP_MAX]; | |
1285 | #define PEER_FT_DISTRIBUTE_LIST (1 << 0) /* distribute-list */ | |
1286 | #define PEER_FT_FILTER_LIST (1 << 1) /* filter-list */ | |
1287 | #define PEER_FT_PREFIX_LIST (1 << 2) /* prefix-list */ | |
1288 | #define PEER_FT_ROUTE_MAP (1 << 3) /* route-map */ | |
1289 | #define PEER_FT_UNSUPPRESS_MAP (1 << 4) /* unsuppress-map */ | |
1290 | ||
d62a17ae | 1291 | /* ORF Prefix-list */ |
1292 | struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX]; | |
1293 | ||
1294 | /* Text description of last attribute rcvd */ | |
1295 | char rcvd_attr_str[BUFSIZ]; | |
1296 | ||
1297 | /* Track if we printed the attribute in debugs */ | |
1298 | int rcvd_attr_printed; | |
1299 | ||
1300 | /* Prefix count. */ | |
a0a87037 | 1301 | uint32_t pcount[AFI_MAX][SAFI_MAX]; |
d62a17ae | 1302 | |
1303 | /* Max prefix count. */ | |
a0a87037 | 1304 | uint32_t pmax[AFI_MAX][SAFI_MAX]; |
d7c0a89a QY |
1305 | uint8_t pmax_threshold[AFI_MAX][SAFI_MAX]; |
1306 | uint16_t pmax_restart[AFI_MAX][SAFI_MAX]; | |
e0701b79 | 1307 | #define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75 |
718e3744 | 1308 | |
fde246e8 DA |
1309 | /* Send prefix count. */ |
1310 | uint32_t pmax_out[AFI_MAX][SAFI_MAX]; | |
1311 | ||
d62a17ae | 1312 | /* allowas-in. */ |
1313 | char allowas_in[AFI_MAX][SAFI_MAX]; | |
ac41b2a2 | 1314 | |
d62a17ae | 1315 | /* weight */ |
1316 | unsigned long weight[AFI_MAX][SAFI_MAX]; | |
d93f7ffc | 1317 | |
d62a17ae | 1318 | /* peer reset cause */ |
1a1f4534 | 1319 | uint8_t last_reset; |
e0701b79 | 1320 | #define PEER_DOWN_RID_CHANGE 1 /* bgp router-id command */ |
1321 | #define PEER_DOWN_REMOTE_AS_CHANGE 2 /* neighbor remote-as command */ | |
1322 | #define PEER_DOWN_LOCAL_AS_CHANGE 3 /* neighbor local-as command */ | |
1323 | #define PEER_DOWN_CLID_CHANGE 4 /* bgp cluster-id command */ | |
1324 | #define PEER_DOWN_CONFED_ID_CHANGE 5 /* bgp confederation identifier command */ | |
1325 | #define PEER_DOWN_CONFED_PEER_CHANGE 6 /* bgp confederation peer command */ | |
1326 | #define PEER_DOWN_RR_CLIENT_CHANGE 7 /* neighbor route-reflector-client command */ | |
1327 | #define PEER_DOWN_RS_CLIENT_CHANGE 8 /* neighbor route-server-client command */ | |
1328 | #define PEER_DOWN_UPDATE_SOURCE_CHANGE 9 /* neighbor update-source command */ | |
1329 | #define PEER_DOWN_AF_ACTIVATE 10 /* neighbor activate command */ | |
1330 | #define PEER_DOWN_USER_SHUTDOWN 11 /* neighbor shutdown command */ | |
1331 | #define PEER_DOWN_USER_RESET 12 /* clear ip bgp command */ | |
1332 | #define PEER_DOWN_NOTIFY_RECEIVED 13 /* notification received */ | |
1333 | #define PEER_DOWN_NOTIFY_SEND 14 /* notification send */ | |
1334 | #define PEER_DOWN_CLOSE_SESSION 15 /* tcp session close */ | |
1335 | #define PEER_DOWN_NEIGHBOR_DELETE 16 /* neghbor delete */ | |
1336 | #define PEER_DOWN_RMAP_BIND 17 /* neghbor peer-group command */ | |
1337 | #define PEER_DOWN_RMAP_UNBIND 18 /* no neighbor peer-group command */ | |
1338 | #define PEER_DOWN_CAPABILITY_CHANGE 19 /* neighbor capability command */ | |
1339 | #define PEER_DOWN_PASSIVE_CHANGE 20 /* neighbor passive command */ | |
1340 | #define PEER_DOWN_MULTIHOP_CHANGE 21 /* neighbor multihop command */ | |
93406d87 | 1341 | #define PEER_DOWN_NSF_CLOSE_SESSION 22 /* NSF tcp session close */ |
8ffedcea | 1342 | #define PEER_DOWN_V6ONLY_CHANGE 23 /* if-based peering v6only toggled */ |
7bbc6864 | 1343 | #define PEER_DOWN_BFD_DOWN 24 /* BFD down */ |
e60480bd DD |
1344 | #define PEER_DOWN_IF_DOWN 25 /* Interface down */ |
1345 | #define PEER_DOWN_NBR_ADDR_DEL 26 /* Peer address lost */ | |
3577f1c5 DD |
1346 | #define PEER_DOWN_WAITING_NHT 27 /* Waiting for NHT to resolve */ |
1347 | #define PEER_DOWN_NBR_ADDR 28 /* Waiting for peer IPv6 IP Addr */ | |
1348 | #define PEER_DOWN_VRF_UNINIT 29 /* Associated VRF is not init yet */ | |
05912a17 | 1349 | #define PEER_DOWN_NOAFI_ACTIVATED 30 /* No AFI/SAFI activated for peer */ |
fb29348a | 1350 | #define PEER_DOWN_AS_SETS_REJECT 31 /* Reject routes with AS_SET */ |
1a1f4534 | 1351 | size_t last_reset_cause_size; |
d7c0a89a | 1352 | uint8_t last_reset_cause[BGP_MAX_PACKET_SIZE]; |
e0701b79 | 1353 | |
d62a17ae | 1354 | /* The kind of route-map Flags.*/ |
a3116965 | 1355 | uint16_t rmap_type; |
ac41b2a2 | 1356 | #define PEER_RMAP_TYPE_IN (1 << 0) /* neighbor route-map in */ |
1357 | #define PEER_RMAP_TYPE_OUT (1 << 1) /* neighbor route-map out */ | |
1358 | #define PEER_RMAP_TYPE_NETWORK (1 << 2) /* network route-map */ | |
1359 | #define PEER_RMAP_TYPE_REDISTRIBUTE (1 << 3) /* redistribute route-map */ | |
1360 | #define PEER_RMAP_TYPE_DEFAULT (1 << 4) /* default-originate route-map */ | |
1361 | #define PEER_RMAP_TYPE_NOSET (1 << 5) /* not allow to set commands */ | |
fee0f4c6 | 1362 | #define PEER_RMAP_TYPE_IMPORT (1 << 6) /* neighbor route-map import */ |
1363 | #define PEER_RMAP_TYPE_EXPORT (1 << 7) /* neighbor route-map export */ | |
20894f50 | 1364 | #define PEER_RMAP_TYPE_AGGREGATE (1 << 8) /* aggregate-address route-map */ |
6410e93a | 1365 | |
d62a17ae | 1366 | /* peer specific BFD information */ |
1367 | struct bfd_info *bfd_info; | |
04b6bdc0 | 1368 | |
d62a17ae | 1369 | /* hostname and domainname advertised by host */ |
1370 | char *hostname; | |
1371 | char *domainname; | |
19df7279 | 1372 | |
2b31007c RZ |
1373 | /* Sender side AS path loop detection. */ |
1374 | bool as_path_loop_detection; | |
1375 | ||
d62a17ae | 1376 | QOBJ_FIELDS |
718e3744 | 1377 | }; |
19df7279 | 1378 | DECLARE_QOBJ_TYPE(peer) |
718e3744 | 1379 | |
598ce6bd | 1380 | /* Inherit peer attribute from peer-group. */ |
e7103a96 PM |
1381 | #define PEER_ATTR_INHERIT(peer, group, attr) \ |
1382 | ((peer)->attr = (group)->conf->attr) | |
1383 | #define PEER_STR_ATTR_INHERIT(peer, group, attr, mt) \ | |
598ce6bd | 1384 | do { \ |
e1b36e13 | 1385 | XFREE(mt, (peer)->attr); \ |
e7103a96 PM |
1386 | if ((group)->conf->attr) \ |
1387 | (peer)->attr = XSTRDUP(mt, (group)->conf->attr); \ | |
598ce6bd PM |
1388 | else \ |
1389 | (peer)->attr = NULL; \ | |
1390 | } while (0) | |
a14810f4 PM |
1391 | #define PEER_SU_ATTR_INHERIT(peer, group, attr) \ |
1392 | do { \ | |
1393 | if ((peer)->attr) \ | |
1394 | sockunion_free((peer)->attr); \ | |
1395 | if ((group)->conf->attr) \ | |
1396 | (peer)->attr = sockunion_dup((group)->conf->attr); \ | |
1397 | else \ | |
1398 | (peer)->attr = NULL; \ | |
1399 | } while (0) | |
598ce6bd | 1400 | |
ad4cbda1 | 1401 | /* Check if suppress start/restart of sessions to peer. */ |
d62a17ae | 1402 | #define BGP_PEER_START_SUPPRESSED(P) \ |
1403 | (CHECK_FLAG((P)->flags, PEER_FLAG_SHUTDOWN) \ | |
1404 | || CHECK_FLAG((P)->sflags, PEER_STATUS_PREFIX_OVERFLOW)) | |
ad4cbda1 | 1405 | |
0df7c91f PJ |
1406 | #define PEER_PASSWORD_MINLEN (1) |
1407 | #define PEER_PASSWORD_MAXLEN (80) | |
1408 | ||
718e3744 | 1409 | /* This structure's member directly points incoming packet data |
1410 | stream. */ | |
d62a17ae | 1411 | struct bgp_nlri { |
1412 | /* AFI. */ | |
a46a2e9b | 1413 | uint16_t afi; /* iana_afi_t */ |
718e3744 | 1414 | |
d62a17ae | 1415 | /* SAFI. */ |
a46a2e9b | 1416 | uint8_t safi; /* iana_safi_t */ |
718e3744 | 1417 | |
d62a17ae | 1418 | /* Pointer to NLRI byte stream. */ |
d7c0a89a | 1419 | uint8_t *nlri; |
718e3744 | 1420 | |
d62a17ae | 1421 | /* Length of whole NLRI. */ |
1422 | bgp_size_t length; | |
718e3744 | 1423 | }; |
1424 | ||
1425 | /* BGP versions. */ | |
1426 | #define BGP_VERSION_4 4 | |
718e3744 | 1427 | |
1428 | /* Default BGP port number. */ | |
1429 | #define BGP_PORT_DEFAULT 179 | |
1430 | ||
718e3744 | 1431 | /* BGP minimum message size. */ |
1432 | #define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10) | |
1433 | #define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4) | |
1434 | #define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2) | |
1435 | #define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0) | |
1436 | #define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4) | |
1437 | #define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3) | |
1438 | ||
1439 | /* BGP message types. */ | |
1440 | #define BGP_MSG_OPEN 1 | |
1441 | #define BGP_MSG_UPDATE 2 | |
1442 | #define BGP_MSG_NOTIFY 3 | |
1443 | #define BGP_MSG_KEEPALIVE 4 | |
1444 | #define BGP_MSG_ROUTE_REFRESH_NEW 5 | |
1445 | #define BGP_MSG_CAPABILITY 6 | |
1446 | #define BGP_MSG_ROUTE_REFRESH_OLD 128 | |
1447 | ||
1448 | /* BGP open optional parameter. */ | |
1449 | #define BGP_OPEN_OPT_AUTH 1 | |
1450 | #define BGP_OPEN_OPT_CAP 2 | |
1451 | ||
1452 | /* BGP4 attribute type codes. */ | |
1453 | #define BGP_ATTR_ORIGIN 1 | |
1454 | #define BGP_ATTR_AS_PATH 2 | |
1455 | #define BGP_ATTR_NEXT_HOP 3 | |
1456 | #define BGP_ATTR_MULTI_EXIT_DISC 4 | |
1457 | #define BGP_ATTR_LOCAL_PREF 5 | |
1458 | #define BGP_ATTR_ATOMIC_AGGREGATE 6 | |
1459 | #define BGP_ATTR_AGGREGATOR 7 | |
1460 | #define BGP_ATTR_COMMUNITIES 8 | |
1461 | #define BGP_ATTR_ORIGINATOR_ID 9 | |
1462 | #define BGP_ATTR_CLUSTER_LIST 10 | |
1463 | #define BGP_ATTR_DPA 11 | |
1464 | #define BGP_ATTR_ADVERTISER 12 | |
1465 | #define BGP_ATTR_RCID_PATH 13 | |
1466 | #define BGP_ATTR_MP_REACH_NLRI 14 | |
1467 | #define BGP_ATTR_MP_UNREACH_NLRI 15 | |
1468 | #define BGP_ATTR_EXT_COMMUNITIES 16 | |
0b2aa3a0 PJ |
1469 | #define BGP_ATTR_AS4_PATH 17 |
1470 | #define BGP_ATTR_AS4_AGGREGATOR 18 | |
41367172 | 1471 | #define BGP_ATTR_AS_PATHLIMIT 21 |
a21bd7a3 | 1472 | #define BGP_ATTR_PMSI_TUNNEL 22 |
f4c89855 | 1473 | #define BGP_ATTR_ENCAP 23 |
57d187bc | 1474 | #define BGP_ATTR_LARGE_COMMUNITIES 32 |
c5a543b4 | 1475 | #define BGP_ATTR_PREFIX_SID 40 |
943d595a | 1476 | #if ENABLE_BGP_VNC_ATTR |
65efcfce LB |
1477 | #define BGP_ATTR_VNC 255 |
1478 | #endif | |
718e3744 | 1479 | |
1480 | /* BGP update origin. */ | |
1481 | #define BGP_ORIGIN_IGP 0 | |
1482 | #define BGP_ORIGIN_EGP 1 | |
1483 | #define BGP_ORIGIN_INCOMPLETE 2 | |
1484 | ||
1485 | /* BGP notify message codes. */ | |
1486 | #define BGP_NOTIFY_HEADER_ERR 1 | |
1487 | #define BGP_NOTIFY_OPEN_ERR 2 | |
1488 | #define BGP_NOTIFY_UPDATE_ERR 3 | |
1489 | #define BGP_NOTIFY_HOLD_ERR 4 | |
1490 | #define BGP_NOTIFY_FSM_ERR 5 | |
1491 | #define BGP_NOTIFY_CEASE 6 | |
1492 | #define BGP_NOTIFY_CAPABILITY_ERR 7 | |
718e3744 | 1493 | |
4b4e07d2 DT |
1494 | #define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0 |
1495 | ||
718e3744 | 1496 | /* BGP_NOTIFY_HEADER_ERR sub codes. */ |
1497 | #define BGP_NOTIFY_HEADER_NOT_SYNC 1 | |
1498 | #define BGP_NOTIFY_HEADER_BAD_MESLEN 2 | |
1499 | #define BGP_NOTIFY_HEADER_BAD_MESTYPE 3 | |
718e3744 | 1500 | |
1501 | /* BGP_NOTIFY_OPEN_ERR sub codes. */ | |
14051b36 | 1502 | #define BGP_NOTIFY_OPEN_MALFORMED_ATTR 0 |
718e3744 | 1503 | #define BGP_NOTIFY_OPEN_UNSUP_VERSION 1 |
1504 | #define BGP_NOTIFY_OPEN_BAD_PEER_AS 2 | |
1505 | #define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3 | |
1506 | #define BGP_NOTIFY_OPEN_UNSUP_PARAM 4 | |
1507 | #define BGP_NOTIFY_OPEN_AUTH_FAILURE 5 | |
1508 | #define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6 | |
1509 | #define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7 | |
718e3744 | 1510 | |
1511 | /* BGP_NOTIFY_UPDATE_ERR sub codes. */ | |
1512 | #define BGP_NOTIFY_UPDATE_MAL_ATTR 1 | |
1513 | #define BGP_NOTIFY_UPDATE_UNREC_ATTR 2 | |
1514 | #define BGP_NOTIFY_UPDATE_MISS_ATTR 3 | |
1515 | #define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4 | |
1516 | #define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5 | |
1517 | #define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6 | |
1518 | #define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7 | |
1519 | #define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8 | |
1520 | #define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9 | |
1521 | #define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10 | |
1522 | #define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11 | |
718e3744 | 1523 | |
4b4e07d2 | 1524 | /* BGP_NOTIFY_CEASE sub codes (RFC 4486). */ |
718e3744 | 1525 | #define BGP_NOTIFY_CEASE_MAX_PREFIX 1 |
1526 | #define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2 | |
1527 | #define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3 | |
1528 | #define BGP_NOTIFY_CEASE_ADMIN_RESET 4 | |
1529 | #define BGP_NOTIFY_CEASE_CONNECT_REJECT 5 | |
1530 | #define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6 | |
545acafb | 1531 | #define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7 |
1532 | #define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8 | |
718e3744 | 1533 | |
1534 | /* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */ | |
1535 | #define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1 | |
1536 | #define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2 | |
1537 | #define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3 | |
718e3744 | 1538 | |
1539 | /* BGP finite state machine status. */ | |
1540 | #define Idle 1 | |
1541 | #define Connect 2 | |
1542 | #define Active 3 | |
1543 | #define OpenSent 4 | |
1544 | #define OpenConfirm 5 | |
1545 | #define Established 6 | |
ca058a30 PJ |
1546 | #define Clearing 7 |
1547 | #define Deleted 8 | |
1548 | #define BGP_STATUS_MAX 9 | |
718e3744 | 1549 | |
1550 | /* BGP finite state machine events. */ | |
1551 | #define BGP_Start 1 | |
1552 | #define BGP_Stop 2 | |
1553 | #define TCP_connection_open 3 | |
1554 | #define TCP_connection_closed 4 | |
1555 | #define TCP_connection_open_failed 5 | |
1556 | #define TCP_fatal_error 6 | |
1557 | #define ConnectRetry_timer_expired 7 | |
1558 | #define Hold_Timer_expired 8 | |
1559 | #define KeepAlive_timer_expired 9 | |
1560 | #define Receive_OPEN_message 10 | |
1561 | #define Receive_KEEPALIVE_message 11 | |
1562 | #define Receive_UPDATE_message 12 | |
1563 | #define Receive_NOTIFICATION_message 13 | |
ca058a30 PJ |
1564 | #define Clearing_Completed 14 |
1565 | #define BGP_EVENTS_MAX 15 | |
718e3744 | 1566 | |
1567 | /* BGP timers default value. */ | |
5ca5f1c8 | 1568 | #define BGP_INIT_START_TIMER 1 |
5d5393b9 DL |
1569 | /* The following 3 are RFC defaults that are overridden in bgp_vty.c with |
1570 | * version-/profile-specific values. The values here do not matter, they only | |
1571 | * exist to provide a clear layering separation between core and CLI. | |
1572 | */ | |
1573 | #define BGP_DEFAULT_HOLDTIME 180 | |
1574 | #define BGP_DEFAULT_KEEPALIVE 60 | |
1575 | #define BGP_DEFAULT_CONNECT_RETRY 120 | |
1576 | ||
12179ba3 | 1577 | #define BGP_DEFAULT_EBGP_ROUTEADV 0 |
1670355a | 1578 | #define BGP_DEFAULT_IBGP_ROUTEADV 0 |
718e3744 | 1579 | |
1580 | /* BGP default local preference. */ | |
1581 | #define BGP_DEFAULT_LOCAL_PREF 100 | |
1582 | ||
7f323236 DW |
1583 | /* BGP local-preference to send when 'bgp graceful-shutdown' |
1584 | * is configured */ | |
1585 | #define BGP_GSHUT_LOCAL_PREF 0 | |
1586 | ||
3f9c7369 DS |
1587 | /* BGP default subgroup packet queue max . */ |
1588 | #define BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX 40 | |
1589 | ||
538621f2 | 1590 | /* BGP graceful restart */ |
1591 | #define BGP_DEFAULT_RESTART_TIME 120 | |
1592 | #define BGP_DEFAULT_STALEPATH_TIME 360 | |
cfd47646 | 1593 | #define BGP_DEFAULT_SELECT_DEFERRAL_TIME 360 |
2d3dd828 | 1594 | #define BGP_DEFAULT_RIB_STALE_TIME 500 |
538621f2 | 1595 | |
718e3744 | 1596 | /* BGP uptime string length. */ |
1597 | #define BGP_UPTIME_LEN 25 | |
1598 | ||
1599 | /* Default configuration settings for bgpd. */ | |
1600 | #define BGP_VTY_PORT 2605 | |
718e3744 | 1601 | #define BGP_DEFAULT_CONFIG "bgpd.conf" |
1602 | ||
f14e6fdb DS |
1603 | /* BGP Dynamic Neighbors feature */ |
1604 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT 100 | |
1605 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_MIN 1 | |
1606 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_MAX 5000 | |
1607 | ||
718e3744 | 1608 | /* Flag for peer_clear_soft(). */ |
d62a17ae | 1609 | enum bgp_clear_type { |
1610 | BGP_CLEAR_SOFT_NONE, | |
1611 | BGP_CLEAR_SOFT_OUT, | |
1612 | BGP_CLEAR_SOFT_IN, | |
1613 | BGP_CLEAR_SOFT_BOTH, | |
1614 | BGP_CLEAR_SOFT_IN_ORF_PREFIX | |
718e3744 | 1615 | }; |
1616 | ||
1617 | /* Macros. */ | |
424ab01d | 1618 | #define BGP_INPUT(P) ((P)->curr) |
2d34fb80 | 1619 | #define BGP_INPUT_PNT(P) (stream_pnt(BGP_INPUT(P))) |
d62a17ae | 1620 | #define BGP_IS_VALID_STATE_FOR_NOTIF(S) \ |
1621 | (((S) == OpenSent) || ((S) == OpenConfirm) || ((S) == Established)) | |
718e3744 | 1622 | |
718e3744 | 1623 | /* BGP error codes. */ |
1624 | #define BGP_SUCCESS 0 | |
5d5393b9 | 1625 | #define BGP_CREATED 1 |
718e3744 | 1626 | #define BGP_ERR_INVALID_VALUE -1 |
1627 | #define BGP_ERR_INVALID_FLAG -2 | |
1628 | #define BGP_ERR_INVALID_AS -3 | |
1629 | #define BGP_ERR_INVALID_BGP -4 | |
1630 | #define BGP_ERR_PEER_GROUP_MEMBER -5 | |
c8560b44 DW |
1631 | #define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -7 |
1632 | #define BGP_ERR_PEER_GROUP_CANT_CHANGE -8 | |
1633 | #define BGP_ERR_PEER_GROUP_MISMATCH -9 | |
1634 | #define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -10 | |
c8560b44 DW |
1635 | #define BGP_ERR_AS_MISMATCH -12 |
1636 | #define BGP_ERR_PEER_FLAG_CONFLICT -13 | |
1637 | #define BGP_ERR_PEER_GROUP_SHUTDOWN -14 | |
1638 | #define BGP_ERR_PEER_FILTER_CONFLICT -15 | |
1639 | #define BGP_ERR_NOT_INTERNAL_PEER -16 | |
1640 | #define BGP_ERR_REMOVE_PRIVATE_AS -17 | |
1641 | #define BGP_ERR_AF_UNCONFIGURED -18 | |
1642 | #define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -19 | |
1643 | #define BGP_ERR_INSTANCE_MISMATCH -20 | |
1644 | #define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -21 | |
1645 | #define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -22 | |
1646 | #define BGP_ERR_TCPSIG_FAILED -23 | |
1647 | #define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -24 | |
1648 | #define BGP_ERR_NO_IBGP_WITH_TTLHACK -25 | |
1649 | #define BGP_ERR_NO_INTERFACE_CONFIG -26 | |
1650 | #define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS -27 | |
1651 | #define BGP_ERR_AS_OVERRIDE -28 | |
1652 | #define BGP_ERR_INVALID_DYNAMIC_NEIGHBORS_LIMIT -29 | |
1653 | #define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_EXISTS -30 | |
1654 | #define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND -31 | |
1655 | #define BGP_ERR_INVALID_FOR_DYNAMIC_PEER -32 | |
1656 | #define BGP_ERR_MAX -33 | |
63fa10b5 | 1657 | #define BGP_ERR_INVALID_FOR_DIRECT_PEER -34 |
9bedbb1e | 1658 | #define BGP_ERR_PEER_SAFI_CONFLICT -35 |
718e3744 | 1659 | |
b0965c44 | 1660 | /* BGP GR ERRORS */ |
b0965c44 | 1661 | #define BGP_ERR_GR_INVALID_CMD -36 |
1662 | #define BGP_ERR_GR_OPERATION_FAILED -37 | |
1663 | #define BGP_GR_NO_OPERATION -38 | |
1664 | ||
3f9c7369 DS |
1665 | /* |
1666 | * Enumeration of different policy kinds a peer can be configured with. | |
1667 | */ | |
d62a17ae | 1668 | typedef enum { |
1669 | BGP_POLICY_ROUTE_MAP, | |
1670 | BGP_POLICY_FILTER_LIST, | |
1671 | BGP_POLICY_PREFIX_LIST, | |
1672 | BGP_POLICY_DISTRIBUTE_LIST, | |
3f9c7369 DS |
1673 | } bgp_policy_type_e; |
1674 | ||
dcc68b5e MS |
1675 | /* peer_flag_change_type. */ |
1676 | enum peer_change_type { | |
1677 | peer_change_none, | |
1678 | peer_change_reset, | |
1679 | peer_change_reset_in, | |
1680 | peer_change_reset_out, | |
1681 | }; | |
1682 | ||
718e3744 | 1683 | extern struct bgp_master *bm; |
37fe7731 | 1684 | extern unsigned int multipath_num; |
718e3744 | 1685 | |
718e3744 | 1686 | /* Prototypes. */ |
d62a17ae | 1687 | extern void bgp_terminate(void); |
1688 | extern void bgp_reset(void); | |
1689 | extern time_t bgp_clock(void); | |
1690 | extern void bgp_zclient_reset(void); | |
d62a17ae | 1691 | extern struct bgp *bgp_get_default(void); |
1692 | extern struct bgp *bgp_lookup(as_t, const char *); | |
1693 | extern struct bgp *bgp_lookup_by_name(const char *); | |
1694 | extern struct bgp *bgp_lookup_by_vrf_id(vrf_id_t); | |
e2f3a930 T |
1695 | extern struct bgp *bgp_get_evpn(void); |
1696 | extern void bgp_set_evpn(struct bgp *bgp); | |
d62a17ae | 1697 | extern struct peer *peer_lookup(struct bgp *, union sockunion *); |
1698 | extern struct peer *peer_lookup_by_conf_if(struct bgp *, const char *); | |
04b6bdc0 | 1699 | extern struct peer *peer_lookup_by_hostname(struct bgp *, const char *); |
d62a17ae | 1700 | extern void bgp_peer_conf_if_to_su_update(struct peer *); |
ffd0c037 | 1701 | extern int peer_group_listen_range_del(struct peer_group *, struct prefix *); |
d62a17ae | 1702 | extern struct peer_group *peer_group_lookup(struct bgp *, const char *); |
1703 | extern struct peer_group *peer_group_get(struct bgp *, const char *); | |
1704 | extern struct peer *peer_create_bind_dynamic_neighbor(struct bgp *, | |
1705 | union sockunion *, | |
1706 | struct peer_group *); | |
1707 | extern struct prefix * | |
1708 | peer_group_lookup_dynamic_neighbor_range(struct peer_group *, struct prefix *); | |
1709 | extern struct peer_group *peer_group_lookup_dynamic_neighbor(struct bgp *, | |
1710 | struct prefix *, | |
1711 | struct prefix **); | |
1712 | extern struct peer *peer_lookup_dynamic_neighbor(struct bgp *, | |
1713 | union sockunion *); | |
28066f4b DS |
1714 | |
1715 | /* | |
1716 | * Peers are incredibly easy to memory leak | |
1717 | * due to the various ways that they are actually used | |
1718 | * Provide some functionality to debug locks and unlocks | |
1719 | */ | |
1720 | extern struct peer *peer_lock_with_caller(const char *, struct peer *); | |
1721 | extern struct peer *peer_unlock_with_caller(const char *, struct peer *); | |
1722 | #define peer_unlock(A) peer_unlock_with_caller(__FUNCTION__, (A)) | |
1723 | #define peer_lock(B) peer_lock_with_caller(__FUNCTION__, (B)) | |
1724 | ||
d62a17ae | 1725 | extern bgp_peer_sort_t peer_sort(struct peer *peer); |
1726 | extern int peer_active(struct peer *); | |
1727 | extern int peer_active_nego(struct peer *); | |
1728 | extern void bgp_recalculate_all_bestpaths(struct bgp *bgp); | |
a80beece | 1729 | extern struct peer *peer_create(union sockunion *, const char *, struct bgp *, |
d62a17ae | 1730 | as_t, as_t, int, afi_t, safi_t, |
1731 | struct peer_group *); | |
1732 | extern struct peer *peer_create_accept(struct bgp *); | |
1733 | extern void peer_xfer_config(struct peer *dst, struct peer *src); | |
94d4c685 DS |
1734 | extern char *peer_uptime(time_t uptime2, char *buf, size_t len, bool use_json, |
1735 | json_object *json); | |
856ca177 | 1736 | |
d62a17ae | 1737 | extern int bgp_config_write(struct vty *); |
6b0655a2 | 1738 | |
c2d020ad DS |
1739 | extern void bgp_master_init(struct thread_master *master, |
1740 | const int buffer_size); | |
718e3744 | 1741 | |
f533be73 | 1742 | extern void bgp_init(unsigned short instance); |
419dfe6a | 1743 | extern void bgp_pthreads_run(void); |
2d4ee774 | 1744 | extern void bgp_pthreads_finish(void); |
d62a17ae | 1745 | extern void bgp_route_map_init(void); |
1746 | extern void bgp_session_reset(struct peer *); | |
718e3744 | 1747 | |
d62a17ae | 1748 | extern int bgp_option_set(int); |
1749 | extern int bgp_option_unset(int); | |
1750 | extern int bgp_option_check(int); | |
718e3744 | 1751 | |
d62a17ae | 1752 | extern int bgp_get(struct bgp **, as_t *, const char *, enum bgp_instance_type); |
1753 | extern void bgp_instance_up(struct bgp *); | |
1754 | extern void bgp_instance_down(struct bgp *); | |
1755 | extern int bgp_delete(struct bgp *); | |
718e3744 | 1756 | |
e5619c28 PG |
1757 | extern int bgp_handle_socket(struct bgp *bgp, struct vrf *vrf, |
1758 | vrf_id_t old_vrf_id, bool create); | |
1759 | ||
d62a17ae | 1760 | extern int bgp_flag_set(struct bgp *, int); |
1761 | extern int bgp_flag_unset(struct bgp *, int); | |
1762 | extern int bgp_flag_check(struct bgp *, int); | |
718e3744 | 1763 | |
d62a17ae | 1764 | extern void bgp_router_id_zebra_bump(vrf_id_t, const struct prefix *); |
1765 | extern int bgp_router_id_static_set(struct bgp *, struct in_addr); | |
718e3744 | 1766 | |
d62a17ae | 1767 | extern int bgp_cluster_id_set(struct bgp *, struct in_addr *); |
1768 | extern int bgp_cluster_id_unset(struct bgp *); | |
718e3744 | 1769 | |
d62a17ae | 1770 | extern int bgp_confederation_id_set(struct bgp *, as_t); |
1771 | extern int bgp_confederation_id_unset(struct bgp *); | |
1772 | extern int bgp_confederation_peers_check(struct bgp *, as_t); | |
718e3744 | 1773 | |
d62a17ae | 1774 | extern int bgp_confederation_peers_add(struct bgp *, as_t); |
1775 | extern int bgp_confederation_peers_remove(struct bgp *, as_t); | |
718e3744 | 1776 | |
5d5393b9 DL |
1777 | extern int bgp_timers_set(struct bgp *, uint32_t keepalive, uint32_t holdtime, |
1778 | uint32_t connect_retry); | |
d62a17ae | 1779 | extern int bgp_timers_unset(struct bgp *); |
718e3744 | 1780 | |
d7c0a89a | 1781 | extern int bgp_default_local_preference_set(struct bgp *, uint32_t); |
d62a17ae | 1782 | extern int bgp_default_local_preference_unset(struct bgp *); |
718e3744 | 1783 | |
d7c0a89a | 1784 | extern int bgp_default_subgroup_pkt_queue_max_set(struct bgp *bgp, uint32_t); |
d62a17ae | 1785 | extern int bgp_default_subgroup_pkt_queue_max_unset(struct bgp *bgp); |
3f9c7369 | 1786 | |
d62a17ae | 1787 | extern int bgp_listen_limit_set(struct bgp *, int); |
1788 | extern int bgp_listen_limit_unset(struct bgp *); | |
f14e6fdb | 1789 | |
d62a17ae | 1790 | extern int bgp_update_delay_active(struct bgp *); |
1791 | extern int bgp_update_delay_configured(struct bgp *); | |
318cac96 | 1792 | extern int bgp_afi_safi_peer_exists(struct bgp *bgp, afi_t afi, safi_t safi); |
d62a17ae | 1793 | extern void peer_as_change(struct peer *, as_t, int); |
1794 | extern int peer_remote_as(struct bgp *, union sockunion *, const char *, as_t *, | |
1795 | int, afi_t, safi_t); | |
1796 | extern int peer_group_remote_as(struct bgp *, const char *, as_t *, int); | |
1797 | extern int peer_delete(struct peer *peer); | |
4e2786df | 1798 | extern int peer_notify_unconfig(struct peer *peer); |
d62a17ae | 1799 | extern int peer_group_delete(struct peer_group *); |
1800 | extern int peer_group_remote_as_delete(struct peer_group *); | |
f14e6fdb | 1801 | extern int peer_group_listen_range_add(struct peer_group *, struct prefix *); |
4e2786df | 1802 | extern int peer_group_notify_unconfig(struct peer_group *group); |
718e3744 | 1803 | |
d62a17ae | 1804 | extern int peer_activate(struct peer *, afi_t, safi_t); |
1805 | extern int peer_deactivate(struct peer *, afi_t, safi_t); | |
1806 | extern int peer_afc_set(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1807 | |
d62a17ae | 1808 | extern int peer_group_bind(struct bgp *, union sockunion *, struct peer *, |
1809 | struct peer_group *, as_t *); | |
718e3744 | 1810 | |
d7c0a89a QY |
1811 | extern int peer_flag_set(struct peer *, uint32_t); |
1812 | extern int peer_flag_unset(struct peer *, uint32_t); | |
9fb964de | 1813 | extern void peer_flag_inherit(struct peer *peer, uint32_t flag); |
718e3744 | 1814 | |
d7c0a89a QY |
1815 | extern int peer_af_flag_set(struct peer *, afi_t, safi_t, uint32_t); |
1816 | extern int peer_af_flag_unset(struct peer *, afi_t, safi_t, uint32_t); | |
1817 | extern int peer_af_flag_check(struct peer *, afi_t, safi_t, uint32_t); | |
cf9ac8bf PM |
1818 | extern void peer_af_flag_inherit(struct peer *peer, afi_t afi, safi_t safi, |
1819 | uint32_t flag); | |
dcc68b5e MS |
1820 | extern void peer_change_action(struct peer *peer, afi_t afi, safi_t safi, |
1821 | enum peer_change_type type); | |
718e3744 | 1822 | |
d62a17ae | 1823 | extern int peer_ebgp_multihop_set(struct peer *, int); |
1824 | extern int peer_ebgp_multihop_unset(struct peer *); | |
1825 | extern int is_ebgp_multihop_configured(struct peer *peer); | |
718e3744 | 1826 | |
d62a17ae | 1827 | extern int peer_description_set(struct peer *, const char *); |
1828 | extern int peer_description_unset(struct peer *); | |
718e3744 | 1829 | |
d62a17ae | 1830 | extern int peer_update_source_if_set(struct peer *, const char *); |
1831 | extern int peer_update_source_addr_set(struct peer *, const union sockunion *); | |
1832 | extern int peer_update_source_unset(struct peer *); | |
718e3744 | 1833 | |
1de27621 DA |
1834 | extern int peer_default_originate_set(struct peer *peer, afi_t afi, safi_t safi, |
1835 | const char *rmap, | |
1836 | struct route_map *route_map); | |
d62a17ae | 1837 | extern int peer_default_originate_unset(struct peer *, afi_t, safi_t); |
718e3744 | 1838 | |
d7c0a89a | 1839 | extern int peer_port_set(struct peer *, uint16_t); |
d62a17ae | 1840 | extern int peer_port_unset(struct peer *); |
718e3744 | 1841 | |
d7c0a89a | 1842 | extern int peer_weight_set(struct peer *, afi_t, safi_t, uint16_t); |
d62a17ae | 1843 | extern int peer_weight_unset(struct peer *, afi_t, safi_t); |
718e3744 | 1844 | |
d7c0a89a QY |
1845 | extern int peer_timers_set(struct peer *, uint32_t keepalive, |
1846 | uint32_t holdtime); | |
d62a17ae | 1847 | extern int peer_timers_unset(struct peer *); |
718e3744 | 1848 | |
d7c0a89a | 1849 | extern int peer_timers_connect_set(struct peer *, uint32_t); |
d62a17ae | 1850 | extern int peer_timers_connect_unset(struct peer *); |
718e3744 | 1851 | |
d7c0a89a | 1852 | extern int peer_advertise_interval_set(struct peer *, uint32_t); |
d62a17ae | 1853 | extern int peer_advertise_interval_unset(struct peer *); |
718e3744 | 1854 | |
d62a17ae | 1855 | extern void peer_interface_set(struct peer *, const char *); |
1856 | extern void peer_interface_unset(struct peer *); | |
718e3744 | 1857 | |
d62a17ae | 1858 | extern int peer_distribute_set(struct peer *, afi_t, safi_t, int, const char *); |
1859 | extern int peer_distribute_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1860 | |
d62a17ae | 1861 | extern int peer_allowas_in_set(struct peer *, afi_t, safi_t, int, int); |
1862 | extern int peer_allowas_in_unset(struct peer *, afi_t, safi_t); | |
718e3744 | 1863 | |
d62a17ae | 1864 | extern int peer_local_as_set(struct peer *, as_t, int, int); |
1865 | extern int peer_local_as_unset(struct peer *); | |
718e3744 | 1866 | |
d62a17ae | 1867 | extern int peer_prefix_list_set(struct peer *, afi_t, safi_t, int, |
1868 | const char *); | |
1869 | extern int peer_prefix_list_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1870 | |
d62a17ae | 1871 | extern int peer_aslist_set(struct peer *, afi_t, safi_t, int, const char *); |
1872 | extern int peer_aslist_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1873 | |
1de27621 DA |
1874 | extern int peer_route_map_set(struct peer *peer, afi_t afi, safi_t safi, int, |
1875 | const char *name, struct route_map *route_map); | |
d62a17ae | 1876 | extern int peer_route_map_unset(struct peer *, afi_t, safi_t, int); |
718e3744 | 1877 | |
1de27621 DA |
1878 | extern int peer_unsuppress_map_set(struct peer *peer, afi_t afi, safi_t safi, |
1879 | const char *name, | |
1880 | struct route_map *route_map); | |
0df7c91f | 1881 | |
d62a17ae | 1882 | extern int peer_password_set(struct peer *, const char *); |
1883 | extern int peer_password_unset(struct peer *); | |
0df7c91f | 1884 | |
d62a17ae | 1885 | extern int peer_unsuppress_map_unset(struct peer *, afi_t, safi_t); |
718e3744 | 1886 | |
d7c0a89a QY |
1887 | extern int peer_maximum_prefix_set(struct peer *, afi_t, safi_t, uint32_t, |
1888 | uint8_t, int, uint16_t); | |
d62a17ae | 1889 | extern int peer_maximum_prefix_unset(struct peer *, afi_t, safi_t); |
718e3744 | 1890 | |
d62a17ae | 1891 | extern int peer_clear(struct peer *, struct listnode **); |
1892 | extern int peer_clear_soft(struct peer *, afi_t, safi_t, enum bgp_clear_type); | |
93406d87 | 1893 | |
d62a17ae | 1894 | extern int peer_ttl_security_hops_set(struct peer *, int); |
1895 | extern int peer_ttl_security_hops_unset(struct peer *); | |
fa411a21 | 1896 | |
d62a17ae | 1897 | extern int peer_tx_shutdown_message_set(struct peer *, const char *msg); |
1898 | extern int peer_tx_shutdown_message_unset(struct peer *); | |
73d70fa6 | 1899 | |
d62a17ae | 1900 | extern int bgp_route_map_update_timer(struct thread *thread); |
518f0eb1 | 1901 | extern void bgp_route_map_terminate(void); |
16286195 | 1902 | |
d62a17ae | 1903 | extern int peer_cmp(struct peer *p1, struct peer *p2); |
3f9c7369 | 1904 | |
5c525538 | 1905 | extern int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi, iana_safi_t pkt_safi, |
d62a17ae | 1906 | afi_t *afi, safi_t *safi); |
1907 | extern int bgp_map_afi_safi_int2iana(afi_t afi, safi_t safi, | |
a4d82a8a PZ |
1908 | iana_afi_t *pkt_afi, |
1909 | iana_safi_t *pkt_safi); | |
9cabb64b | 1910 | |
d62a17ae | 1911 | extern struct peer_af *peer_af_create(struct peer *, afi_t, safi_t); |
1912 | extern struct peer_af *peer_af_find(struct peer *, afi_t, safi_t); | |
1913 | extern int peer_af_delete(struct peer *, afi_t, safi_t); | |
3f9c7369 | 1914 | |
ffd0c037 | 1915 | extern void bgp_close(void); |
92375c91 | 1916 | extern void bgp_free(struct bgp *); |
b0965c44 | 1917 | void bgp_gr_apply_running_config(void); |
1918 | ||
1919 | /* BGP GR */ | |
b0965c44 | 1920 | int bgp_global_gr_init(struct bgp *bgp); |
1921 | int bgp_peer_gr_init(struct peer *peer); | |
92375c91 | 1922 | |
2d3dd828 | 1923 | |
1924 | #define BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA( \ | |
1925 | _bgp, _peer_list) \ | |
1926 | do { \ | |
1927 | struct peer *peer_loop; \ | |
1928 | bool gr_router_detected = false; \ | |
1929 | struct listnode *node = {0}; \ | |
1930 | struct listnode *nnode = {0}; \ | |
1931 | for (ALL_LIST_ELEMENTS( \ | |
1932 | _peer_list, node, \ | |
1933 | nnode, peer_loop)) { \ | |
1934 | if (CHECK_FLAG( \ | |
1935 | peer_loop->flags, \ | |
1936 | PEER_FLAG_GRACEFUL_RESTART)) \ | |
1937 | gr_router_detected = true; \ | |
1938 | } \ | |
1939 | if (gr_router_detected && \ | |
1940 | _bgp->present_zebra_gr_state == ZEBRA_GR_DISABLE) { \ | |
1941 | bgp_zebra_send_capabilities(_bgp, false); \ | |
1942 | } else if (!gr_router_detected && \ | |
1943 | _bgp->present_zebra_gr_state == ZEBRA_GR_ENABLE) { \ | |
1944 | bgp_zebra_send_capabilities(_bgp, true); \ | |
1945 | } \ | |
1946 | } while (0) | |
1947 | ||
92375c91 JB |
1948 | static inline struct bgp *bgp_lock(struct bgp *bgp) |
1949 | { | |
1950 | bgp->lock++; | |
1951 | return bgp; | |
1952 | } | |
1953 | ||
1954 | static inline void bgp_unlock(struct bgp *bgp) | |
1955 | { | |
1956 | assert(bgp->lock > 0); | |
1957 | if (--bgp->lock == 0) | |
1958 | bgp_free(bgp); | |
1959 | } | |
ffd0c037 | 1960 | |
d62a17ae | 1961 | static inline int afindex(afi_t afi, safi_t safi) |
3f9c7369 | 1962 | { |
d62a17ae | 1963 | switch (afi) { |
1964 | case AFI_IP: | |
1965 | switch (safi) { | |
1966 | case SAFI_UNICAST: | |
1967 | return BGP_AF_IPV4_UNICAST; | |
1968 | break; | |
1969 | case SAFI_MULTICAST: | |
1970 | return BGP_AF_IPV4_MULTICAST; | |
1971 | break; | |
1972 | case SAFI_LABELED_UNICAST: | |
1973 | return BGP_AF_IPV4_LBL_UNICAST; | |
1974 | break; | |
1975 | case SAFI_MPLS_VPN: | |
1976 | return BGP_AF_IPV4_VPN; | |
1977 | break; | |
1978 | case SAFI_ENCAP: | |
1979 | return BGP_AF_IPV4_ENCAP; | |
1980 | break; | |
7c40bf39 | 1981 | case SAFI_FLOWSPEC: |
1982 | return BGP_AF_IPV4_FLOWSPEC; | |
d62a17ae | 1983 | default: |
1984 | return BGP_AF_MAX; | |
1985 | break; | |
1986 | } | |
1987 | break; | |
1988 | case AFI_IP6: | |
1989 | switch (safi) { | |
1990 | case SAFI_UNICAST: | |
1991 | return BGP_AF_IPV6_UNICAST; | |
1992 | break; | |
1993 | case SAFI_MULTICAST: | |
1994 | return BGP_AF_IPV6_MULTICAST; | |
1995 | break; | |
1996 | case SAFI_LABELED_UNICAST: | |
1997 | return BGP_AF_IPV6_LBL_UNICAST; | |
1998 | break; | |
1999 | case SAFI_MPLS_VPN: | |
2000 | return BGP_AF_IPV6_VPN; | |
2001 | break; | |
2002 | case SAFI_ENCAP: | |
2003 | return BGP_AF_IPV6_ENCAP; | |
2004 | break; | |
7c40bf39 | 2005 | case SAFI_FLOWSPEC: |
2006 | return BGP_AF_IPV6_FLOWSPEC; | |
d62a17ae | 2007 | default: |
2008 | return BGP_AF_MAX; | |
2009 | break; | |
2010 | } | |
2011 | break; | |
2012 | case AFI_L2VPN: | |
2013 | switch (safi) { | |
2014 | case SAFI_EVPN: | |
2015 | return BGP_AF_L2VPN_EVPN; | |
2016 | break; | |
2017 | default: | |
2018 | return BGP_AF_MAX; | |
2019 | break; | |
2020 | } | |
3f9c7369 | 2021 | default: |
d62a17ae | 2022 | return BGP_AF_MAX; |
2023 | break; | |
3f9c7369 | 2024 | } |
3f9c7369 DS |
2025 | } |
2026 | ||
c8560b44 | 2027 | /* If the peer is not a peer-group but is bound to a peer-group return 1 */ |
d62a17ae | 2028 | static inline int peer_group_active(struct peer *peer) |
3f9c7369 | 2029 | { |
d62a17ae | 2030 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) && peer->group) |
2031 | return 1; | |
2032 | return 0; | |
3f9c7369 DS |
2033 | } |
2034 | ||
2035 | /* If peer is negotiated at least one address family return 1. */ | |
d62a17ae | 2036 | static inline int peer_afi_active_nego(const struct peer *peer, afi_t afi) |
3f9c7369 | 2037 | { |
d62a17ae | 2038 | if (peer->afc_nego[afi][SAFI_UNICAST] |
2039 | || peer->afc_nego[afi][SAFI_MULTICAST] | |
2040 | || peer->afc_nego[afi][SAFI_LABELED_UNICAST] | |
2041 | || peer->afc_nego[afi][SAFI_MPLS_VPN] | |
2042 | || peer->afc_nego[afi][SAFI_ENCAP] | |
7c40bf39 | 2043 | || peer->afc_nego[afi][SAFI_FLOWSPEC] |
d62a17ae | 2044 | || peer->afc_nego[afi][SAFI_EVPN]) |
2045 | return 1; | |
2046 | return 0; | |
3f9c7369 DS |
2047 | } |
2048 | ||
f14e6fdb | 2049 | /* If at least one address family activated for group, return 1. */ |
d62a17ae | 2050 | static inline int peer_group_af_configured(struct peer_group *group) |
f14e6fdb | 2051 | { |
d62a17ae | 2052 | struct peer *peer = group->conf; |
2053 | ||
2054 | if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST] | |
2055 | || peer->afc[AFI_IP][SAFI_LABELED_UNICAST] | |
7c40bf39 | 2056 | || peer->afc[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 2057 | || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP] |
2058 | || peer->afc[AFI_IP6][SAFI_UNICAST] | |
2059 | || peer->afc[AFI_IP6][SAFI_MULTICAST] | |
2060 | || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST] | |
2061 | || peer->afc[AFI_IP6][SAFI_MPLS_VPN] | |
ba0fcaf6 | 2062 | || peer->afc[AFI_IP6][SAFI_ENCAP] |
7c40bf39 | 2063 | || peer->afc[AFI_IP6][SAFI_FLOWSPEC] |
ba0fcaf6 | 2064 | || peer->afc[AFI_L2VPN][SAFI_EVPN]) |
d62a17ae | 2065 | return 1; |
2066 | return 0; | |
f14e6fdb DS |
2067 | } |
2068 | ||
d62a17ae | 2069 | static inline char *timestamp_string(time_t ts) |
3f9c7369 | 2070 | { |
d62a17ae | 2071 | time_t tbuf; |
2072 | tbuf = time(NULL) - (bgp_clock() - ts); | |
2073 | return ctime(&tbuf); | |
3f9c7369 DS |
2074 | } |
2075 | ||
d62a17ae | 2076 | static inline int peer_established(struct peer *peer) |
3f9c7369 | 2077 | { |
d62a17ae | 2078 | if (peer->status == Established) |
2079 | return 1; | |
2080 | return 0; | |
3f9c7369 DS |
2081 | } |
2082 | ||
d62a17ae | 2083 | static inline int peer_dynamic_neighbor(struct peer *peer) |
f14e6fdb | 2084 | { |
d62a17ae | 2085 | return (CHECK_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR)) ? 1 : 0; |
f14e6fdb DS |
2086 | } |
2087 | ||
d62a17ae | 2088 | static inline int peer_cap_enhe(struct peer *peer, afi_t afi, safi_t safi) |
8a92a8a0 | 2089 | { |
d62a17ae | 2090 | return (CHECK_FLAG(peer->af_cap[afi][safi], PEER_CAP_ENHE_AF_NEGO)); |
8a92a8a0 DS |
2091 | } |
2092 | ||
d1be1f08 | 2093 | /* Lookup VRF for BGP instance based on its type. */ |
d62a17ae | 2094 | static inline struct vrf *bgp_vrf_lookup_by_instance_type(struct bgp *bgp) |
d1be1f08 | 2095 | { |
d62a17ae | 2096 | struct vrf *vrf; |
d1be1f08 | 2097 | |
d62a17ae | 2098 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) |
2099 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
2100 | else if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
2101 | vrf = vrf_lookup_by_name(bgp->name); | |
2102 | else | |
2103 | vrf = NULL; | |
d1be1f08 | 2104 | |
d62a17ae | 2105 | return vrf; |
d1be1f08 | 2106 | } |
2107 | ||
2108 | /* Link BGP instance to VRF. */ | |
d62a17ae | 2109 | static inline void bgp_vrf_link(struct bgp *bgp, struct vrf *vrf) |
d1be1f08 | 2110 | { |
d62a17ae | 2111 | bgp->vrf_id = vrf->vrf_id; |
92375c91 JB |
2112 | if (vrf->info != (void *)bgp) |
2113 | vrf->info = (void *)bgp_lock(bgp); | |
d1be1f08 | 2114 | } |
2115 | ||
2116 | /* Unlink BGP instance from VRF. */ | |
d62a17ae | 2117 | static inline void bgp_vrf_unlink(struct bgp *bgp, struct vrf *vrf) |
d1be1f08 | 2118 | { |
d62a17ae | 2119 | if (vrf->info == (void *)bgp) { |
2120 | vrf->info = NULL; | |
2121 | bgp_unlock(bgp); | |
2122 | } | |
2123 | bgp->vrf_id = VRF_UNKNOWN; | |
d1be1f08 | 2124 | } |
2125 | ||
401d56cc | 2126 | extern void bgp_unset_redist_vrf_bitmaps(struct bgp *, vrf_id_t); |
65efcfce LB |
2127 | |
2128 | /* For benefit of rfapi */ | |
d62a17ae | 2129 | extern struct peer *peer_new(struct bgp *bgp); |
dcc1615e DD |
2130 | |
2131 | extern struct peer *peer_lookup_in_view(struct vty *vty, struct bgp *bgp, | |
2132 | const char *ip_str, bool use_json); | |
2133 | ||
7d8d0eab MKS |
2134 | /* Hooks */ |
2135 | DECLARE_HOOK(peer_status_changed, (struct peer * peer), (peer)) | |
d7b3cda6 | 2136 | void peer_nsf_stop(struct peer *peer); |
7d8d0eab | 2137 | |
00d252cb | 2138 | #endif /* _QUAGGA_BGPD_H */ |