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718e3744 | 1 | /* BGP message definition header. |
896014f4 DL |
2 | * Copyright (C) 1996, 97, 98, 99, 2000 Kunihiro Ishiguro |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
718e3744 | 20 | |
00d252cb | 21 | #ifndef _QUAGGA_BGPD_H |
22 | #define _QUAGGA_BGPD_H | |
23 | ||
19df7279 | 24 | #include "qobj.h" |
d3ecc69e QY |
25 | #include <pthread.h> |
26 | ||
2b9bcf30 | 27 | #include "hook.h" |
1ac267a2 | 28 | #include "frr_pthread.h" |
856ca177 | 29 | #include "lib/json.h" |
6aeb9e78 | 30 | #include "vrf.h" |
94c60424 | 31 | #include "vty.h" |
17136bf2 | 32 | #include "iana_afi.h" |
6aeb9e78 | 33 | |
718e3744 | 34 | /* For union sockunion. */ |
3f9c7369 | 35 | #include "queue.h" |
718e3744 | 36 | #include "sockunion.h" |
518f0eb1 | 37 | #include "routemap.h" |
ffd0c037 | 38 | #include "linklist.h" |
8efe88ea | 39 | #include "defaults.h" |
4a1ab8e4 | 40 | #include "bgp_memory.h" |
14c1a7bf | 41 | #include "bitfield.h" |
fe1dc5a3 | 42 | #include "vxlan.h" |
955bfd98 | 43 | #include "bgp_labelpool.h" |
dcc68b5e | 44 | #include "bgp_addpath_types.h" |
718e3744 | 45 | |
04b6bdc0 | 46 | #define BGP_MAX_HOSTNAME 64 /* Linux max, is larger than most other sys */ |
40520c36 | 47 | #define BGP_PEER_MAX_HASH_SIZE 16384 |
04b6bdc0 | 48 | |
5c81b96a | 49 | /* Default interval for IPv6 RAs when triggered by BGP unnumbered neighbor. */ |
50 | #define BGP_UNNUM_DEFAULT_RA_INTERVAL 10 | |
51 | ||
3f9c7369 DS |
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 | ||
c44ab6f1 AK |
168 | /* EVPN multihoming */ |
169 | struct bgp_evpn_mh_info *mh_info; | |
170 | ||
97b4a0ec | 171 | bool terminating; /* global flag that sigint terminate seen */ |
d62a17ae | 172 | QOBJ_FIELDS |
718e3744 | 173 | }; |
19df7279 | 174 | DECLARE_QOBJ_TYPE(bgp_master) |
718e3744 | 175 | |
73ac8160 | 176 | /* BGP route-map structure. */ |
d62a17ae | 177 | struct bgp_rmap { |
178 | char *name; | |
179 | struct route_map *map; | |
73ac8160 DS |
180 | }; |
181 | ||
d62a17ae | 182 | struct bgp_redist { |
d7c0a89a | 183 | unsigned short instance; |
7c8ff89e | 184 | |
d62a17ae | 185 | /* BGP redistribute metric configuration. */ |
d7c0a89a QY |
186 | uint8_t redist_metric_flag; |
187 | uint32_t redist_metric; | |
7c8ff89e | 188 | |
d62a17ae | 189 | /* BGP redistribute route-map. */ |
190 | struct bgp_rmap rmap; | |
7c8ff89e DS |
191 | }; |
192 | ||
ddb5b488 PZ |
193 | typedef enum { |
194 | BGP_VPN_POLICY_DIR_FROMVPN = 0, | |
195 | BGP_VPN_POLICY_DIR_TOVPN = 1, | |
196 | BGP_VPN_POLICY_DIR_MAX = 2 | |
197 | } vpn_policy_direction_t; | |
198 | ||
e70e9f8e PZ |
199 | struct vpn_policy { |
200 | struct bgp *bgp; /* parent */ | |
201 | afi_t afi; | |
202 | struct ecommunity *rtlist[BGP_VPN_POLICY_DIR_MAX]; | |
203 | struct ecommunity *import_redirect_rtlist; | |
204 | char *rmap_name[BGP_VPN_POLICY_DIR_MAX]; | |
205 | struct route_map *rmap[BGP_VPN_POLICY_DIR_MAX]; | |
206 | ||
207 | /* should be mpls_label_t? */ | |
208 | uint32_t tovpn_label; /* may be MPLS_LABEL_NONE */ | |
209 | uint32_t tovpn_zebra_vrf_label_last_sent; | |
210 | struct prefix_rd tovpn_rd; | |
211 | struct prefix tovpn_nexthop; /* unset => set to 0 */ | |
212 | uint32_t flags; | |
213 | #define BGP_VPN_POLICY_TOVPN_LABEL_AUTO (1 << 0) | |
214 | #define BGP_VPN_POLICY_TOVPN_RD_SET (1 << 1) | |
215 | #define BGP_VPN_POLICY_TOVPN_NEXTHOP_SET (1 << 2) | |
12a844a5 | 216 | |
1d4e8b0d DS |
217 | /* |
218 | * If we are importing another vrf into us keep a list of | |
219 | * vrf names that are being imported into us. | |
220 | */ | |
12a844a5 | 221 | struct list *import_vrf; |
1d4e8b0d DS |
222 | |
223 | /* | |
224 | * if we are being exported to another vrf keep a list of | |
225 | * vrf names that we are being exported to. | |
226 | */ | |
12a844a5 | 227 | struct list *export_vrf; |
e70e9f8e PZ |
228 | }; |
229 | ||
ad4cbda1 | 230 | /* |
231 | * Type of 'struct bgp'. | |
232 | * - Default: The default instance | |
233 | * - VRF: A specific (non-default) VRF | |
234 | * - View: An instance used for route exchange | |
235 | * The "default" instance is treated separately to simplify the code. Note | |
236 | * that if deployed in a Multi-VRF environment, it may not exist. | |
237 | */ | |
d62a17ae | 238 | enum bgp_instance_type { |
239 | BGP_INSTANCE_TYPE_DEFAULT, | |
240 | BGP_INSTANCE_TYPE_VRF, | |
241 | BGP_INSTANCE_TYPE_VIEW | |
ad4cbda1 | 242 | }; |
243 | ||
36235319 | 244 | #define BGP_SEND_EOR(bgp, afi, safi) \ |
892fedb6 | 245 | (!CHECK_FLAG(bgp->flags, BGP_FLAG_GR_DISABLE_EOR) \ |
36235319 QY |
246 | && ((bgp->gr_info[afi][safi].t_select_deferral == NULL) \ |
247 | || (bgp->gr_info[afi][safi].eor_required \ | |
248 | == bgp->gr_info[afi][safi].eor_received))) | |
b0965c44 | 249 | |
250 | /* BGP GR Global ds */ | |
251 | ||
2ba1fe69 | 252 | #define BGP_GLOBAL_GR_MODE 4 |
253 | #define BGP_GLOBAL_GR_EVENT_CMD 4 | |
b0965c44 | 254 | |
b0965c44 | 255 | /* Graceful restart selection deferral timer info */ |
256 | struct graceful_restart_info { | |
257 | /* Count of EOR message expected */ | |
258 | uint32_t eor_required; | |
259 | /* Count of EOR received */ | |
260 | uint32_t eor_received; | |
261 | /* Deferral Timer */ | |
262 | struct thread *t_select_deferral; | |
263 | /* Route list */ | |
264 | struct list *route_list; | |
265 | /* Best route select */ | |
266 | struct thread *t_route_select; | |
2d3dd828 | 267 | /* AFI, SAFI enabled */ |
268 | bool af_enabled[AFI_MAX][SAFI_MAX]; | |
269 | /* Route update completed */ | |
270 | bool route_sync[AFI_MAX][SAFI_MAX]; | |
b0965c44 | 271 | }; |
272 | ||
b0965c44 | 273 | enum global_mode { |
274 | GLOBAL_HELPER = 0, /* This is the default mode */ | |
275 | GLOBAL_GR, | |
276 | GLOBAL_DISABLE, | |
277 | GLOBAL_INVALID | |
278 | }; | |
279 | ||
280 | enum global_gr_command { | |
281 | GLOBAL_GR_CMD = 0, | |
282 | NO_GLOBAL_GR_CMD, | |
283 | GLOBAL_DISABLE_CMD, | |
284 | NO_GLOBAL_DISABLE_CMD | |
285 | }; | |
286 | ||
287 | #define BGP_GR_SUCCESS 0 | |
288 | #define BGP_GR_FAILURE 1 | |
289 | ||
f7e1c681 | 290 | /* Handling of BGP link bandwidth (LB) on receiver - whether and how to |
291 | * do weighted ECMP. Note: This applies after multipath computation. | |
292 | */ | |
293 | enum bgp_link_bw_handling { | |
294 | /* Do ECMP if some paths don't have LB - default */ | |
295 | BGP_LINK_BW_ECMP, | |
296 | /* Completely ignore LB, just do regular ECMP */ | |
297 | BGP_LINK_BW_IGNORE_BW, | |
298 | /* Skip paths without LB, do wECMP on others */ | |
299 | BGP_LINK_BW_SKIP_MISSING, | |
300 | /* Do wECMP with default weight for paths not having LB */ | |
301 | BGP_LINK_BW_DEFWT_4_MISSING | |
302 | }; | |
303 | ||
718e3744 | 304 | /* BGP instance structure. */ |
d62a17ae | 305 | struct bgp { |
306 | /* AS number of this BGP instance. */ | |
307 | as_t as; | |
308 | ||
309 | /* Name of this BGP instance. */ | |
310 | char *name; | |
3572fb26 | 311 | char *name_pretty; /* printable "VRF|VIEW name|default" */ |
d62a17ae | 312 | |
313 | /* Type of instance and VRF id. */ | |
314 | enum bgp_instance_type inst_type; | |
315 | vrf_id_t vrf_id; | |
316 | ||
317 | /* Reference count to allow peer_delete to finish after bgp_delete */ | |
318 | int lock; | |
319 | ||
320 | /* Self peer. */ | |
321 | struct peer *peer_self; | |
322 | ||
323 | /* BGP peer. */ | |
324 | struct list *peer; | |
325 | struct hash *peerhash; | |
326 | ||
327 | /* BGP peer group. */ | |
328 | struct list *group; | |
329 | ||
330 | /* The maximum number of BGP dynamic neighbors that can be created */ | |
331 | int dynamic_neighbors_limit; | |
332 | ||
333 | /* The current number of BGP dynamic neighbors */ | |
334 | int dynamic_neighbors_count; | |
335 | ||
336 | struct hash *update_groups[BGP_AF_MAX]; | |
337 | ||
338 | /* | |
339 | * Global statistics for update groups. | |
340 | */ | |
341 | struct { | |
d7c0a89a QY |
342 | uint32_t join_events; |
343 | uint32_t prune_events; | |
344 | uint32_t merge_events; | |
345 | uint32_t split_events; | |
346 | uint32_t updgrp_switch_events; | |
347 | uint32_t peer_refreshes_combined; | |
348 | uint32_t adj_count; | |
349 | uint32_t merge_checks_triggered; | |
350 | ||
351 | uint32_t updgrps_created; | |
352 | uint32_t updgrps_deleted; | |
353 | uint32_t subgrps_created; | |
354 | uint32_t subgrps_deleted; | |
d62a17ae | 355 | } update_group_stats; |
356 | ||
357 | /* BGP configuration. */ | |
d7c0a89a | 358 | uint16_t config; |
c2d58d6d | 359 | #define BGP_CONFIG_CLUSTER_ID (1 << 0) |
360 | #define BGP_CONFIG_CONFEDERATION (1 << 1) | |
718e3744 | 361 | |
d62a17ae | 362 | /* BGP router identifier. */ |
363 | struct in_addr router_id; | |
364 | struct in_addr router_id_static; | |
365 | struct in_addr router_id_zebra; | |
718e3744 | 366 | |
d62a17ae | 367 | /* BGP route reflector cluster ID. */ |
368 | struct in_addr cluster_id; | |
718e3744 | 369 | |
d62a17ae | 370 | /* BGP confederation information. */ |
371 | as_t confed_id; | |
372 | as_t *confed_peers; | |
373 | int confed_peers_cnt; | |
718e3744 | 374 | |
d62a17ae | 375 | struct thread |
376 | *t_startup; /* start-up timer on only once at the beginning */ | |
abc920f8 | 377 | |
d7c0a89a | 378 | uint32_t v_maxmed_onstartup; /* Duration of max-med on start-up */ |
abc920f8 | 379 | #define BGP_MAXMED_ONSTARTUP_UNCONFIGURED 0 /* 0 means off, its the default */ |
d7c0a89a QY |
380 | uint32_t maxmed_onstartup_value; /* Max-med value when active on |
381 | start-up */ | |
d62a17ae | 382 | struct thread |
383 | *t_maxmed_onstartup; /* non-null when max-med onstartup is on */ | |
d7c0a89a | 384 | uint8_t maxmed_onstartup_over; /* Flag to make it effective only once */ |
d62a17ae | 385 | |
d7c0a89a | 386 | uint8_t v_maxmed_admin; /* 1/0 if max-med administrative is on/off */ |
abc920f8 | 387 | #define BGP_MAXMED_ADMIN_UNCONFIGURED 0 /* Off by default */ |
d7c0a89a QY |
388 | uint32_t maxmed_admin_value; /* Max-med value when administrative in on |
389 | */ | |
abc920f8 DS |
390 | #define BGP_MAXMED_VALUE_DEFAULT 4294967294 /* Maximum by default */ |
391 | ||
d7c0a89a QY |
392 | uint8_t maxmed_active; /* 1/0 if max-med is active or not */ |
393 | uint32_t maxmed_value; /* Max-med value when its active */ | |
d62a17ae | 394 | |
395 | /* BGP update delay on startup */ | |
396 | struct thread *t_update_delay; | |
397 | struct thread *t_establish_wait; | |
d7c0a89a QY |
398 | uint8_t update_delay_over; |
399 | uint8_t main_zebra_update_hold; | |
400 | uint8_t main_peers_update_hold; | |
401 | uint16_t v_update_delay; | |
402 | uint16_t v_establish_wait; | |
d62a17ae | 403 | char update_delay_begin_time[64]; |
404 | char update_delay_end_time[64]; | |
405 | char update_delay_zebra_resume_time[64]; | |
406 | char update_delay_peers_resume_time[64]; | |
d7c0a89a QY |
407 | uint32_t established; |
408 | uint32_t restarted_peers; | |
409 | uint32_t implicit_eors; | |
410 | uint32_t explicit_eors; | |
f188f2c4 DS |
411 | #define BGP_UPDATE_DELAY_DEF 0 |
412 | #define BGP_UPDATE_DELAY_MIN 0 | |
413 | #define BGP_UPDATE_DELAY_MAX 3600 | |
414 | ||
b1875e65 | 415 | /* Reference bandwidth for BGP link-bandwidth. Used when |
416 | * the LB value has to be computed based on some other | |
417 | * factor (e.g., number of multipaths for the prefix) | |
418 | * Value is in Mbps | |
419 | */ | |
420 | uint32_t lb_ref_bw; | |
421 | #define BGP_LINK_BW_REF_BW 1 | |
422 | ||
d62a17ae | 423 | /* BGP flags. */ |
d7c0a89a | 424 | uint32_t flags; |
718e3744 | 425 | #define BGP_FLAG_ALWAYS_COMPARE_MED (1 << 0) |
426 | #define BGP_FLAG_DETERMINISTIC_MED (1 << 1) | |
427 | #define BGP_FLAG_MED_MISSING_AS_WORST (1 << 2) | |
428 | #define BGP_FLAG_MED_CONFED (1 << 3) | |
429 | #define BGP_FLAG_NO_DEFAULT_IPV4 (1 << 4) | |
430 | #define BGP_FLAG_NO_CLIENT_TO_CLIENT (1 << 5) | |
718e3744 | 431 | #define BGP_FLAG_COMPARE_ROUTER_ID (1 << 7) |
432 | #define BGP_FLAG_ASPATH_IGNORE (1 << 8) | |
433 | #define BGP_FLAG_IMPORT_CHECK (1 << 9) | |
434 | #define BGP_FLAG_NO_FAST_EXT_FAILOVER (1 << 10) | |
848973c7 | 435 | #define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1 << 11) |
b0965c44 | 436 | |
437 | /* This flag is set when we have full BGP Graceful-Restart mode enable */ | |
538621f2 | 438 | #define BGP_FLAG_GRACEFUL_RESTART (1 << 12) |
b0965c44 | 439 | |
6811845b | 440 | #define BGP_FLAG_ASPATH_CONFED (1 << 13) |
2fdd455c | 441 | #define BGP_FLAG_ASPATH_MULTIPATH_RELAX (1 << 14) |
8bd9d948 | 442 | #define BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY (1 << 15) |
907f92c8 | 443 | #define BGP_FLAG_DISABLE_NH_CONNECTED_CHK (1 << 16) |
219178b6 | 444 | #define BGP_FLAG_MULTIPATH_RELAX_AS_SET (1 << 17) |
078430f6 | 445 | #define BGP_FLAG_FORCE_STATIC_PROCESS (1 << 18) |
5623e905 | 446 | #define BGP_FLAG_SHOW_HOSTNAME (1 << 19) |
6a9a3cde | 447 | #define BGP_FLAG_GR_PRESERVE_FWD (1 << 20) |
7f323236 | 448 | #define BGP_FLAG_GRACEFUL_SHUTDOWN (1 << 21) |
9f822fa2 | 449 | #define BGP_FLAG_DELETE_IN_PROGRESS (1 << 22) |
cfd47646 | 450 | #define BGP_FLAG_SELECT_DEFER_DISABLE (1 << 23) |
d6e3c15b | 451 | #define BGP_FLAG_GR_DISABLE_EOR (1 << 24) |
1d3fdccf | 452 | #define BGP_FLAG_EBGP_REQUIRES_POLICY (1 << 25) |
aef999a2 | 453 | #define BGP_FLAG_SHOW_NEXTHOP_HOSTNAME (1 << 26) |
b0965c44 | 454 | |
9cf59432 DS |
455 | /* This flag is set if the instance is in administrative shutdown */ |
456 | #define BGP_FLAG_SHUTDOWN (1 << 27) | |
457 | ||
2ba1fe69 | 458 | enum global_mode GLOBAL_GR_FSM[BGP_GLOBAL_GR_MODE] |
36235319 | 459 | [BGP_GLOBAL_GR_EVENT_CMD]; |
b0965c44 | 460 | enum global_mode global_gr_present_state; |
461 | ||
2d3dd828 | 462 | /* This variable stores the current Graceful Restart state of Zebra |
463 | * - ZEBRA_GR_ENABLE / ZEBRA_GR_DISABLE | |
464 | */ | |
465 | enum zebra_gr_mode present_zebra_gr_state; | |
466 | ||
d62a17ae | 467 | /* BGP Per AF flags */ |
d7c0a89a | 468 | uint16_t af_flags[AFI_MAX][SAFI_MAX]; |
f4882003 | 469 | #define BGP_CONFIG_DAMPENING (1 << 0) |
2c29b18a | 470 | /* l2vpn evpn flags - 1 << 0 is used for DAMPENNG */ |
f4882003 MK |
471 | #define BGP_L2VPN_EVPN_ADVERTISE_IPV4_UNICAST (1 << 1) |
472 | #define BGP_L2VPN_EVPN_ADVERTISE_IPV6_UNICAST (1 << 2) | |
473 | #define BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV4 (1 << 3) | |
474 | #define BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV6 (1 << 4) | |
475 | /* import/export between address families */ | |
476 | #define BGP_CONFIG_VRF_TO_MPLSVPN_EXPORT (1 << 5) | |
477 | #define BGP_CONFIG_MPLSVPN_TO_VRF_IMPORT (1 << 6) | |
478 | /* vrf-route leaking flags */ | |
479 | #define BGP_CONFIG_VRF_TO_VRF_IMPORT (1 << 7) | |
480 | #define BGP_CONFIG_VRF_TO_VRF_EXPORT (1 << 8) | |
154faa50 | 481 | |
210ec2a0 AS |
482 | /* BGP per AF peer count */ |
483 | uint32_t af_peer_count[AFI_MAX][SAFI_MAX]; | |
484 | ||
d62a17ae | 485 | /* Route table for next-hop lookup cache. */ |
486 | struct bgp_table *nexthop_cache_table[AFI_MAX]; | |
6aeb9e78 | 487 | |
d62a17ae | 488 | /* Route table for import-check */ |
489 | struct bgp_table *import_check_table[AFI_MAX]; | |
6aeb9e78 | 490 | |
d62a17ae | 491 | struct bgp_table *connected_table[AFI_MAX]; |
6aeb9e78 | 492 | |
d62a17ae | 493 | struct hash *address_hash; |
6aeb9e78 | 494 | |
db0e1937 MK |
495 | /* DB for all local tunnel-ips - used mainly for martian checks |
496 | Currently it only has all VxLan tunnel IPs*/ | |
497 | struct hash *tip_hash; | |
498 | ||
d62a17ae | 499 | /* Static route configuration. */ |
500 | struct bgp_table *route[AFI_MAX][SAFI_MAX]; | |
718e3744 | 501 | |
d62a17ae | 502 | /* Aggregate address configuration. */ |
503 | struct bgp_table *aggregate[AFI_MAX][SAFI_MAX]; | |
718e3744 | 504 | |
d62a17ae | 505 | /* BGP routing information base. */ |
506 | struct bgp_table *rib[AFI_MAX][SAFI_MAX]; | |
718e3744 | 507 | |
d62a17ae | 508 | /* BGP table route-map. */ |
509 | struct bgp_rmap table_map[AFI_MAX][SAFI_MAX]; | |
73ac8160 | 510 | |
d62a17ae | 511 | /* BGP redistribute configuration. */ |
512 | struct list *redist[AFI_MAX][ZEBRA_ROUTE_MAX]; | |
718e3744 | 513 | |
318cac96 | 514 | /* Allocate MPLS labels */ |
d7c0a89a | 515 | uint8_t allocate_mpls_labels[AFI_MAX][SAFI_MAX]; |
318cac96 | 516 | |
f3d32faa PG |
517 | /* Allocate hash entries to store policy routing information |
518 | * The hash are used to host pbr rules somewhere. | |
519 | * Actually, pbr will only be used by flowspec | |
520 | * those hash elements will have relationship together as | |
521 | * illustrated in below diagram: | |
522 | * | |
523 | * pbr_action a <----- pbr_match i <--- pbr_match_entry 1..n | |
524 | * <----- pbr_match j <--- pbr_match_entry 1..m | |
27e376d4 | 525 | * <----- pbr_rule k |
f3d32faa PG |
526 | * |
527 | * - here in BGP structure, the list of match and actions will | |
528 | * stand for the list of ipset sets, and table_ids in the kernel | |
529 | * - the arrow above between pbr_match and pbr_action indicate | |
530 | * that a backpointer permits match to find the action | |
531 | * - the arrow betwen match_entry and match is a hash list | |
532 | * contained in match, that lists the whole set of entries | |
533 | */ | |
534 | struct hash *pbr_match_hash; | |
27e376d4 | 535 | struct hash *pbr_rule_hash; |
f3d32faa PG |
536 | struct hash *pbr_action_hash; |
537 | ||
d62a17ae | 538 | /* timer to re-evaluate neighbor default-originate route-maps */ |
539 | struct thread *t_rmap_def_originate_eval; | |
0de4848d DS |
540 | #define RMAP_DEFAULT_ORIGINATE_EVAL_TIMER 5 |
541 | ||
d62a17ae | 542 | /* BGP distance configuration. */ |
d7c0a89a QY |
543 | uint8_t distance_ebgp[AFI_MAX][SAFI_MAX]; |
544 | uint8_t distance_ibgp[AFI_MAX][SAFI_MAX]; | |
545 | uint8_t distance_local[AFI_MAX][SAFI_MAX]; | |
d62a17ae | 546 | |
547 | /* BGP default local-preference. */ | |
d7c0a89a | 548 | uint32_t default_local_pref; |
d62a17ae | 549 | |
550 | /* BGP default subgroup pkt queue max */ | |
d7c0a89a | 551 | uint32_t default_subgroup_pkt_queue_max; |
d62a17ae | 552 | |
553 | /* BGP default timer. */ | |
d7c0a89a QY |
554 | uint32_t default_holdtime; |
555 | uint32_t default_keepalive; | |
5d5393b9 | 556 | uint32_t default_connect_retry; |
d62a17ae | 557 | |
558 | /* BGP graceful restart */ | |
d7c0a89a QY |
559 | uint32_t restart_time; |
560 | uint32_t stalepath_time; | |
b0965c44 | 561 | uint32_t select_defer_time; |
562 | struct graceful_restart_info gr_info[AFI_MAX][SAFI_MAX]; | |
2d3dd828 | 563 | uint32_t rib_stale_time; |
564 | ||
cfd47646 | 565 | #define BGP_ROUTE_SELECT_DELAY 1 |
566 | #define BGP_MAX_BEST_ROUTE_SELECT 10000 | |
d62a17ae | 567 | /* Maximum-paths configuration */ |
568 | struct bgp_maxpaths_cfg { | |
d7c0a89a QY |
569 | uint16_t maxpaths_ebgp; |
570 | uint16_t maxpaths_ibgp; | |
571 | uint16_t ibgp_flags; | |
5e242b0d | 572 | #define BGP_FLAG_IBGP_MULTIPATH_SAME_CLUSTERLEN (1 << 0) |
d62a17ae | 573 | } maxpaths[AFI_MAX][SAFI_MAX]; |
cb1faec9 | 574 | |
555e09d4 QY |
575 | _Atomic uint32_t wpkt_quanta; // max # packets to write per i/o cycle |
576 | _Atomic uint32_t rpkt_quanta; // max # packets to read per i/o cycle | |
577 | ||
37a333fe QY |
578 | /* Automatic coalesce adjust on/off */ |
579 | bool heuristic_coalesce; | |
14b8641a QY |
580 | /* Actual coalesce time */ |
581 | uint32_t coalesce_time; | |
adbac85e | 582 | |
f26845f9 QY |
583 | /* Auto-shutdown new peers */ |
584 | bool autoshutdown; | |
585 | ||
dcc68b5e | 586 | struct bgp_addpath_bgp_data tx_addpath; |
65efcfce | 587 | |
1e20238a | 588 | #ifdef ENABLE_BGP_VNC |
d62a17ae | 589 | struct rfapi_cfg *rfapi_cfg; |
590 | struct rfapi *rfapi; | |
65efcfce | 591 | #endif |
19df7279 | 592 | |
d62a17ae | 593 | /* EVPN related information */ |
14c1a7bf | 594 | |
d62a17ae | 595 | /* EVI hash table */ |
596 | struct hash *vnihash; | |
14c1a7bf | 597 | |
1a98c087 MK |
598 | /* EVPN enable - advertise gateway macip routes */ |
599 | int advertise_gw_macip; | |
600 | ||
d62a17ae | 601 | /* EVPN enable - advertise local VNIs and their MACs etc. */ |
602 | int advertise_all_vni; | |
14c1a7bf | 603 | |
fb29348a DA |
604 | /* draft-ietf-idr-deprecate-as-set-confed-set |
605 | * Reject aspaths with AS_SET and/or AS_CONFED_SET. | |
606 | */ | |
607 | bool reject_as_sets; | |
fb29348a | 608 | |
85c8d83b CS |
609 | struct bgp_evpn_info *evpn_info; |
610 | ||
bf1061d8 VB |
611 | /* EVPN - use RFC 8365 to auto-derive RT */ |
612 | int advertise_autort_rfc8365; | |
613 | ||
fd069644 DS |
614 | /* |
615 | * Flooding mechanism for BUM packets for VxLAN-EVPN. | |
616 | */ | |
617 | enum vxlan_flood_control vxlan_flood_ctrl; | |
618 | ||
d62a17ae | 619 | /* Hash table of Import RTs to EVIs */ |
620 | struct hash *import_rt_hash; | |
14c1a7bf | 621 | |
10ebe1ab MK |
622 | /* Hash table of VRF import RTs to VRFs */ |
623 | struct hash *vrf_import_rt_hash; | |
624 | ||
fe1dc5a3 MK |
625 | /* L3-VNI corresponding to this vrf */ |
626 | vni_t l3vni; | |
627 | ||
628 | /* router-mac to be used in mac-ip routes for this vrf */ | |
629 | struct ethaddr rmac; | |
630 | ||
b67a60d2 | 631 | /* originator ip - to be used as NH for type-5 routes */ |
632 | struct in_addr originator_ip; | |
633 | ||
0483af6e | 634 | /* SVI associated with the L3-VNI corresponding to this vrf */ |
635 | ifindex_t l3vni_svi_ifindex; | |
636 | ||
fe1dc5a3 MK |
637 | /* vrf flags */ |
638 | uint32_t vrf_flags; | |
676f83b9 | 639 | #define BGP_VRF_AUTO (1 << 0) |
154faa50 MK |
640 | #define BGP_VRF_IMPORT_RT_CFGD (1 << 1) |
641 | #define BGP_VRF_EXPORT_RT_CFGD (1 << 2) | |
642 | #define BGP_VRF_RD_CFGD (1 << 3) | |
23e386ac MK |
643 | #define BGP_VRF_L3VNI_PREFIX_ROUTES_ONLY (1 << 4) |
644 | ||
676f83b9 | 645 | /* unique ID for auto derivation of RD for this vrf */ |
646 | uint16_t vrf_rd_id; | |
647 | ||
92708db6 | 648 | /* Automatically derived RD for this VRF */ |
649 | struct prefix_rd vrf_prd_auto; | |
650 | ||
676f83b9 | 651 | /* RD for this VRF */ |
652 | struct prefix_rd vrf_prd; | |
c581d8b0 MK |
653 | |
654 | /* import rt list for the vrf instance */ | |
655 | struct list *vrf_import_rtl; | |
656 | ||
657 | /* export rt list for the vrf instance */ | |
658 | struct list *vrf_export_rtl; | |
fe1dc5a3 | 659 | |
6a8657d0 MK |
660 | /* list of corresponding l2vnis (struct bgpevpn) */ |
661 | struct list *l2vnis; | |
662 | ||
53c84f78 MK |
663 | /* route map for advertise ipv4/ipv6 unicast (type-5 routes) */ |
664 | struct bgp_rmap adv_cmd_rmap[AFI_MAX][SAFI_MAX]; | |
665 | ||
e70e9f8e | 666 | struct vpn_policy vpn_policy[AFI_MAX]; |
ddb5b488 | 667 | |
4762c213 PG |
668 | struct bgp_pbr_config *bgp_pbr_cfg; |
669 | ||
36dc7588 | 670 | /* Count of peers in established state */ |
671 | uint32_t established_peers; | |
672 | ||
f7e1c681 | 673 | /* Weighted ECMP related config. */ |
674 | enum bgp_link_bw_handling lb_handling; | |
675 | ||
d62a17ae | 676 | QOBJ_FIELDS |
718e3744 | 677 | }; |
19df7279 | 678 | DECLARE_QOBJ_TYPE(bgp) |
718e3744 | 679 | |
2b9bcf30 DL |
680 | DECLARE_HOOK(bgp_inst_delete, (struct bgp *bgp), (bgp)) |
681 | DECLARE_HOOK(bgp_inst_config_write, | |
682 | (struct bgp *bgp, struct vty *vty), | |
683 | (bgp, vty)) | |
684 | ||
36235319 QY |
685 | /* Thread callback information */ |
686 | struct afi_safi_info { | |
687 | afi_t afi; | |
688 | safi_t safi; | |
689 | struct bgp *bgp; | |
690 | }; | |
cfd47646 | 691 | |
2a3d5731 | 692 | #define BGP_ROUTE_ADV_HOLD(bgp) (bgp->main_peers_update_hold) |
d889623f | 693 | |
d62a17ae | 694 | #define IS_BGP_INST_KNOWN_TO_ZEBRA(bgp) \ |
695 | (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT \ | |
696 | || (bgp->inst_type == BGP_INSTANCE_TYPE_VRF \ | |
697 | && bgp->vrf_id != VRF_UNKNOWN)) | |
ad4cbda1 | 698 | |
36235319 | 699 | #define BGP_SELECT_DEFER_DISABLE(bgp) \ |
892fedb6 | 700 | (CHECK_FLAG(bgp->flags, BGP_FLAG_SELECT_DEFER_DISABLE)) |
cfd47646 | 701 | |
718e3744 | 702 | /* BGP peer-group support. */ |
d62a17ae | 703 | struct peer_group { |
704 | /* Name of the peer-group. */ | |
705 | char *name; | |
718e3744 | 706 | |
d62a17ae | 707 | /* Pointer to BGP. */ |
708 | struct bgp *bgp; | |
718e3744 | 709 | |
d62a17ae | 710 | /* Peer-group client list. */ |
711 | struct list *peer; | |
f14e6fdb | 712 | |
d62a17ae | 713 | /** Dynamic neighbor listening ranges */ |
714 | struct list *listen_range[AFI_MAX]; | |
715 | ||
716 | /* Peer-group config */ | |
717 | struct peer *conf; | |
718e3744 | 718 | }; |
719 | ||
720 | /* BGP Notify message format. */ | |
d62a17ae | 721 | struct bgp_notify { |
d7c0a89a QY |
722 | uint8_t code; |
723 | uint8_t subcode; | |
d62a17ae | 724 | char *data; |
725 | bgp_size_t length; | |
d7c0a89a | 726 | uint8_t *raw_data; |
718e3744 | 727 | }; |
728 | ||
729 | /* Next hop self address. */ | |
d62a17ae | 730 | struct bgp_nexthop { |
731 | struct interface *ifp; | |
732 | struct in_addr v4; | |
733 | struct in6_addr v6_global; | |
734 | struct in6_addr v6_local; | |
718e3744 | 735 | }; |
736 | ||
a82478b9 DS |
737 | /* BGP addpath values */ |
738 | #define BGP_ADDPATH_RX 1 | |
739 | #define BGP_ADDPATH_TX 2 | |
740 | #define BGP_ADDPATH_ID_LEN 4 | |
741 | ||
adbac85e DW |
742 | #define BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE 1 |
743 | ||
3f54c705 | 744 | /* Route map direction */ |
2a3d5731 DW |
745 | #define RMAP_IN 0 |
746 | #define RMAP_OUT 1 | |
747 | #define RMAP_MAX 2 | |
fee0f4c6 | 748 | |
e2521429 DA |
749 | #define BGP_DEFAULT_TTL 1 |
750 | #define BGP_GTSM_HOPS_DISABLED 0 | |
751 | #define BGP_GTSM_HOPS_CONNECTED 1 | |
a0903cd2 | 752 | |
65efcfce LB |
753 | #include "filter.h" |
754 | ||
718e3744 | 755 | /* BGP filter structure. */ |
d62a17ae | 756 | struct bgp_filter { |
757 | /* Distribute-list. */ | |
758 | struct { | |
759 | char *name; | |
760 | struct access_list *alist; | |
761 | } dlist[FILTER_MAX]; | |
762 | ||
763 | /* Prefix-list. */ | |
764 | struct { | |
765 | char *name; | |
766 | struct prefix_list *plist; | |
767 | } plist[FILTER_MAX]; | |
768 | ||
769 | /* Filter-list. */ | |
770 | struct { | |
771 | char *name; | |
772 | struct as_list *aslist; | |
773 | } aslist[FILTER_MAX]; | |
774 | ||
775 | /* Route-map. */ | |
776 | struct { | |
777 | char *name; | |
778 | struct route_map *map; | |
779 | } map[RMAP_MAX]; | |
780 | ||
781 | /* Unsuppress-map. */ | |
782 | struct { | |
783 | char *name; | |
784 | struct route_map *map; | |
785 | } usmap; | |
718e3744 | 786 | }; |
787 | ||
6d85b15b JBD |
788 | /* IBGP/EBGP identifier. We also have a CONFED peer, which is to say, |
789 | a peer who's AS is part of our Confederation. */ | |
d62a17ae | 790 | typedef enum { |
faa16034 DS |
791 | BGP_PEER_UNSPECIFIED, |
792 | BGP_PEER_IBGP, | |
d62a17ae | 793 | BGP_PEER_EBGP, |
794 | BGP_PEER_INTERNAL, | |
795 | BGP_PEER_CONFED, | |
6d85b15b JBD |
796 | } bgp_peer_sort_t; |
797 | ||
d6661008 DS |
798 | /* BGP message header and packet size. */ |
799 | #define BGP_MARKER_SIZE 16 | |
800 | #define BGP_HEADER_SIZE 19 | |
801 | #define BGP_MAX_PACKET_SIZE 4096 | |
0a91ff55 | 802 | #define BGP_MAX_PACKET_SIZE_OVERFLOW 1024 |
d6661008 | 803 | |
3f9c7369 DS |
804 | /* |
805 | * Trigger delay for bgp_announce_route(). | |
806 | */ | |
807 | #define BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS 100 | |
808 | #define BGP_ANNOUNCE_ROUTE_DELAY_MS 500 | |
809 | ||
d62a17ae | 810 | struct peer_af { |
811 | /* back pointer to the peer */ | |
812 | struct peer *peer; | |
3f9c7369 | 813 | |
d62a17ae | 814 | /* which subgroup the peer_af belongs to */ |
815 | struct update_subgroup *subgroup; | |
3f9c7369 | 816 | |
d62a17ae | 817 | /* for being part of an update subgroup's peer list */ |
818 | LIST_ENTRY(peer_af) subgrp_train; | |
3f9c7369 | 819 | |
d62a17ae | 820 | /* for being part of a packet's peer list */ |
821 | LIST_ENTRY(peer_af) pkt_train; | |
3f9c7369 | 822 | |
d62a17ae | 823 | struct bpacket *next_pkt_to_send; |
3f9c7369 | 824 | |
d62a17ae | 825 | /* |
826 | * Trigger timer for bgp_announce_route(). | |
827 | */ | |
828 | struct thread *t_announce_route; | |
3f9c7369 | 829 | |
d62a17ae | 830 | afi_t afi; |
831 | safi_t safi; | |
832 | int afid; | |
3f9c7369 | 833 | }; |
b0965c44 | 834 | /* BGP GR per peer ds */ |
835 | ||
2ba1fe69 | 836 | #define BGP_PEER_GR_MODE 5 |
837 | #define BGP_PEER_GR_EVENT_CMD 6 | |
b0965c44 | 838 | |
839 | enum peer_mode { | |
840 | PEER_HELPER = 0, | |
841 | PEER_GR, | |
842 | PEER_DISABLE, | |
843 | PEER_INVALID, | |
844 | PEER_GLOBAL_INHERIT /* This is the default mode */ | |
845 | ||
846 | }; | |
847 | ||
848 | enum peer_gr_command { | |
849 | PEER_GR_CMD = 0, | |
850 | NO_PEER_GR_CMD, | |
2ba1fe69 | 851 | PEER_DISABLE_CMD, |
b0965c44 | 852 | NO_PEER_DISABLE_CMD, |
853 | PEER_HELPER_CMD, | |
854 | NO_PEER_HELPER_CMD | |
855 | }; | |
856 | ||
857 | typedef unsigned int (*bgp_peer_gr_action_ptr)(struct peer *, int, int); | |
858 | ||
859 | struct bgp_peer_gr { | |
860 | enum peer_mode next_state; | |
861 | bgp_peer_gr_action_ptr action_fun; | |
862 | }; | |
863 | ||
d1060698 DS |
864 | /* BGP finite state machine events. */ |
865 | enum bgp_fsm_events { | |
866 | BGP_Start = 1, | |
867 | BGP_Stop, | |
868 | TCP_connection_open, | |
869 | TCP_connection_closed, | |
870 | TCP_connection_open_failed, | |
871 | TCP_fatal_error, | |
872 | ConnectRetry_timer_expired, | |
873 | Hold_Timer_expired, | |
874 | KeepAlive_timer_expired, | |
875 | Receive_OPEN_message, | |
876 | Receive_KEEPALIVE_message, | |
877 | Receive_UPDATE_message, | |
878 | Receive_NOTIFICATION_message, | |
879 | Clearing_Completed, | |
880 | BGP_EVENTS_MAX, | |
881 | }; | |
3f9c7369 | 882 | |
8398b5d5 DS |
883 | /* BGP finite state machine status. */ |
884 | enum bgp_fsm_status { | |
885 | Idle = 1, | |
886 | Connect, | |
887 | Active, | |
888 | OpenSent, | |
889 | OpenConfirm, | |
890 | Established, | |
891 | Clearing, | |
892 | Deleted, | |
893 | BGP_STATUS_MAX, | |
894 | }; | |
895 | ||
718e3744 | 896 | /* BGP neighbor structure. */ |
d62a17ae | 897 | struct peer { |
898 | /* BGP structure. */ | |
899 | struct bgp *bgp; | |
900 | ||
901 | /* reference count, primarily to allow bgp_process'ing of route_node's | |
902 | * to be done after a struct peer is deleted. | |
903 | * | |
904 | * named 'lock' for hysterical reasons within Quagga. | |
905 | */ | |
906 | int lock; | |
907 | ||
908 | /* BGP peer group. */ | |
909 | struct peer_group *group; | |
910 | uint64_t version[AFI_MAX][SAFI_MAX]; | |
911 | ||
912 | /* BGP peer_af structures, per configured AF on this peer */ | |
913 | struct peer_af *peer_af_array[BGP_AF_MAX]; | |
914 | ||
915 | /* Peer's remote AS number. */ | |
916 | int as_type; | |
917 | as_t as; | |
918 | ||
919 | /* Peer's local AS number. */ | |
920 | as_t local_as; | |
921 | ||
922 | bgp_peer_sort_t sort; | |
923 | ||
924 | /* Peer's Change local AS number. */ | |
925 | as_t change_local_as; | |
926 | ||
927 | /* Remote router ID. */ | |
928 | struct in_addr remote_id; | |
929 | ||
930 | /* Local router ID. */ | |
931 | struct in_addr local_id; | |
932 | ||
933 | /* Packet receive and send buffer. */ | |
424ab01d QY |
934 | pthread_mutex_t io_mtx; // guards ibuf, obuf |
935 | struct stream_fifo *ibuf; // packets waiting to be processed | |
936 | struct stream_fifo *obuf; // packets waiting to be written | |
937 | ||
74ffbfe6 QY |
938 | struct ringbuf *ibuf_work; // WiP buffer used by bgp_read() only |
939 | struct stream *obuf_work; // WiP buffer used to construct packets | |
424ab01d QY |
940 | |
941 | struct stream *curr; // the current packet being parsed | |
d62a17ae | 942 | |
943 | /* We use a separate stream to encode MP_REACH_NLRI for efficient | |
424ab01d | 944 | * NLRI packing. peer->obuf_work stores all the other attributes. The |
d62a17ae | 945 | * actual packet is then constructed by concatenating the two. |
946 | */ | |
947 | struct stream *scratch; | |
948 | ||
949 | /* the doppelganger peer structure, due to dual TCP conn setup */ | |
950 | struct peer *doppelganger; | |
951 | ||
952 | /* Status of the peer. */ | |
8398b5d5 DS |
953 | enum bgp_fsm_status status; |
954 | enum bgp_fsm_status ostatus; | |
d62a17ae | 955 | |
956 | /* FSM events, stored for debug purposes. | |
957 | * Note: uchar used for reduced memory usage. | |
958 | */ | |
d1060698 DS |
959 | enum bgp_fsm_events cur_event; |
960 | enum bgp_fsm_events last_event; | |
961 | enum bgp_fsm_events last_major_event; | |
d62a17ae | 962 | |
963 | /* Peer index, used for dumping TABLE_DUMP_V2 format */ | |
964 | uint16_t table_dump_index; | |
965 | ||
966 | /* Peer information */ | |
967 | int fd; /* File descriptor */ | |
968 | int ttl; /* TTL of TCP connection to the peer. */ | |
969 | int rtt; /* Estimated round-trip-time from TCP_INFO */ | |
970 | int gtsm_hops; /* minimum hopcount to peer */ | |
971 | char *desc; /* Description of the peer. */ | |
972 | unsigned short port; /* Destination port for peer */ | |
973 | char *host; /* Printable address of the peer. */ | |
974 | union sockunion su; /* Sockunion address of the peer. */ | |
a80beece | 975 | #define BGP_PEER_SU_UNSPEC(peer) (peer->su.sa.sa_family == AF_UNSPEC) |
d62a17ae | 976 | time_t uptime; /* Last Up/Down time */ |
977 | time_t readtime; /* Last read time */ | |
978 | time_t resettime; /* Last reset time */ | |
979 | ||
d62a17ae | 980 | char *conf_if; /* neighbor interface config name. */ |
981 | struct interface *ifp; /* corresponding interface */ | |
982 | char *ifname; /* bind interface name. */ | |
983 | char *update_if; | |
984 | union sockunion *update_source; | |
985 | ||
986 | union sockunion *su_local; /* Sockunion of local address. */ | |
987 | union sockunion *su_remote; /* Sockunion of remote address. */ | |
988 | int shared_network; /* Is this peer shared same network. */ | |
989 | struct bgp_nexthop nexthop; /* Nexthop */ | |
990 | ||
991 | /* Peer address family configuration. */ | |
d7c0a89a QY |
992 | uint8_t afc[AFI_MAX][SAFI_MAX]; |
993 | uint8_t afc_nego[AFI_MAX][SAFI_MAX]; | |
994 | uint8_t afc_adv[AFI_MAX][SAFI_MAX]; | |
995 | uint8_t afc_recv[AFI_MAX][SAFI_MAX]; | |
d62a17ae | 996 | |
997 | /* Capability flags (reset in bgp_stop) */ | |
d7c0a89a | 998 | uint32_t cap; |
718e3744 | 999 | #define PEER_CAP_REFRESH_ADV (1 << 0) /* refresh advertised */ |
1000 | #define PEER_CAP_REFRESH_OLD_RCV (1 << 1) /* refresh old received */ | |
1001 | #define PEER_CAP_REFRESH_NEW_RCV (1 << 2) /* refresh rfc received */ | |
1002 | #define PEER_CAP_DYNAMIC_ADV (1 << 3) /* dynamic advertised */ | |
1003 | #define PEER_CAP_DYNAMIC_RCV (1 << 4) /* dynamic received */ | |
538621f2 | 1004 | #define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */ |
1005 | #define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */ | |
0b2aa3a0 PJ |
1006 | #define PEER_CAP_AS4_ADV (1 << 7) /* as4 advertised */ |
1007 | #define PEER_CAP_AS4_RCV (1 << 8) /* as4 received */ | |
fe7d2a48 DS |
1008 | #define PEER_CAP_RESTART_BIT_ADV (1 << 9) /* sent restart state */ |
1009 | #define PEER_CAP_RESTART_BIT_RCV (1 << 10) /* peer restart state */ | |
a82478b9 DS |
1010 | #define PEER_CAP_ADDPATH_ADV (1 << 11) /* addpath advertised */ |
1011 | #define PEER_CAP_ADDPATH_RCV (1 << 12) /* addpath received */ | |
c744aa9f DS |
1012 | #define PEER_CAP_ENHE_ADV (1 << 13) /* Extended nexthop advertised */ |
1013 | #define PEER_CAP_ENHE_RCV (1 << 14) /* Extended nexthop received */ | |
04b6bdc0 DW |
1014 | #define PEER_CAP_HOSTNAME_ADV (1 << 15) /* hostname advertised */ |
1015 | #define PEER_CAP_HOSTNAME_RCV (1 << 16) /* hostname received */ | |
718e3744 | 1016 | |
d62a17ae | 1017 | /* Capability flags (reset in bgp_stop) */ |
d7c0a89a | 1018 | uint32_t af_cap[AFI_MAX][SAFI_MAX]; |
718e3744 | 1019 | #define PEER_CAP_ORF_PREFIX_SM_ADV (1 << 0) /* send-mode advertised */ |
1020 | #define PEER_CAP_ORF_PREFIX_RM_ADV (1 << 1) /* receive-mode advertised */ | |
1021 | #define PEER_CAP_ORF_PREFIX_SM_RCV (1 << 2) /* send-mode received */ | |
1022 | #define PEER_CAP_ORF_PREFIX_RM_RCV (1 << 3) /* receive-mode received */ | |
1023 | #define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1 << 4) /* send-mode received */ | |
1024 | #define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1 << 5) /* receive-mode received */ | |
93406d87 | 1025 | #define PEER_CAP_RESTART_AF_RCV (1 << 6) /* graceful restart afi/safi received */ |
1026 | #define PEER_CAP_RESTART_AF_PRESERVE_RCV (1 << 7) /* graceful restart afi/safi F-bit received */ | |
a82478b9 DS |
1027 | #define PEER_CAP_ADDPATH_AF_TX_ADV (1 << 8) /* addpath tx advertised */ |
1028 | #define PEER_CAP_ADDPATH_AF_TX_RCV (1 << 9) /* addpath tx received */ | |
1029 | #define PEER_CAP_ADDPATH_AF_RX_ADV (1 << 10) /* addpath rx advertised */ | |
1030 | #define PEER_CAP_ADDPATH_AF_RX_RCV (1 << 11) /* addpath rx received */ | |
8a92a8a0 DS |
1031 | #define PEER_CAP_ENHE_AF_ADV (1 << 12) /* Extended nexthopi afi/safi advertised */ |
1032 | #define PEER_CAP_ENHE_AF_RCV (1 << 13) /* Extended nexthop afi/safi received */ | |
1033 | #define PEER_CAP_ENHE_AF_NEGO (1 << 14) /* Extended nexthop afi/safi negotiated */ | |
718e3744 | 1034 | |
d62a17ae | 1035 | /* Global configuration flags. */ |
9fb964de PM |
1036 | /* |
1037 | * Parallel array to flags that indicates whether each flag originates | |
1038 | * from a peer-group or if it is config that is specific to this | |
1039 | * individual peer. If a flag is set independent of the peer-group, the | |
1040 | * same bit should be set here. If this peer is a peer-group, this | |
1041 | * memory region should be all zeros. | |
1042 | * | |
1043 | * The assumption is that the default state for all flags is unset, | |
1044 | * so if a flag is unset, the corresponding override flag is unset too. | |
1045 | * However if a flag is set, the corresponding override flag is set. | |
1046 | */ | |
1047 | uint32_t flags_override; | |
1048 | /* | |
1049 | * Parallel array to flags that indicates whether the default behavior | |
1050 | * of *flags_override* should be inverted. If a flag is unset and the | |
1051 | * corresponding invert flag is set, the corresponding override flag | |
1052 | * would be set. However if a flag is set and the corresponding invert | |
1053 | * flag is unset, the corresponding override flag would be unset. | |
1054 | * | |
1055 | * This can be used for attributes like *send-community*, which are | |
1056 | * implicitely enabled and have to be disabled explicitely, compared to | |
1057 | * 'normal' attributes like *next-hop-self* which are implicitely set. | |
1058 | * | |
1059 | * All operations dealing with flags should apply the following boolean | |
1060 | * logic to keep the internal flag system in a sane state: | |
1061 | * | |
1062 | * value=0 invert=0 Inherit flag if member, otherwise unset flag | |
1063 | * value=0 invert=1 Unset flag unconditionally | |
1064 | * value=1 invert=0 Set flag unconditionally | |
1065 | * value=1 invert=1 Inherit flag if member, otherwise set flag | |
1066 | * | |
1067 | * Contrary to the implementation of *flags_override*, the flag | |
1068 | * inversion state can be set either on the peer OR the peer *and* the | |
1069 | * peer-group. This was done on purpose, as the inversion state of a | |
1070 | * flag can be determined on either the peer or the peer-group. | |
1071 | * | |
1072 | * Example: Enabling the cisco configuration mode inverts all flags | |
1073 | * related to *send-community* unconditionally for both peer-groups and | |
1074 | * peers. | |
1075 | * | |
1076 | * This behavior is different for interface peers though, which enable | |
1077 | * the *extended-nexthop* flag by default, which regular peers do not. | |
1078 | * As the peer-group can contain both regular and interface peers, the | |
1079 | * flag inversion state must be set on the peer only. | |
1080 | * | |
1081 | * When a peer inherits the configuration from a peer-group and the | |
1082 | * inversion state of the flag differs between peer and peer-group, the | |
1083 | * newly set value must equal to the inverted state of the peer-group. | |
1084 | */ | |
1085 | uint32_t flags_invert; | |
1086 | /* | |
1087 | * Effective array for storing the peer/peer-group flags. In case of a | |
1088 | * peer-group, the peer-specific overrides (see flags_override and | |
1089 | * flags_invert) must be respected. | |
1090 | */ | |
d7c0a89a | 1091 | uint32_t flags; |
718e3744 | 1092 | #define PEER_FLAG_PASSIVE (1 << 0) /* passive mode */ |
1093 | #define PEER_FLAG_SHUTDOWN (1 << 1) /* shutdown */ | |
1094 | #define PEER_FLAG_DONT_CAPABILITY (1 << 2) /* dont-capability */ | |
1095 | #define PEER_FLAG_OVERRIDE_CAPABILITY (1 << 3) /* override-capability */ | |
1096 | #define PEER_FLAG_STRICT_CAP_MATCH (1 << 4) /* strict-match */ | |
c9502438 | 1097 | #define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 5) /* dynamic capability */ |
6ffd2079 | 1098 | #define PEER_FLAG_DISABLE_CONNECTED_CHECK (1 << 6) /* disable-connected-check */ |
c9502438 | 1099 | #define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 7) /* local-as no-prepend */ |
9d3f9705 | 1100 | #define PEER_FLAG_LOCAL_AS_REPLACE_AS (1 << 8) /* local-as no-prepend replace-as */ |
47cbc09b PM |
1101 | #define PEER_FLAG_DELETE (1 << 9) /* mark the peer for deleting */ |
1102 | #define PEER_FLAG_CONFIG_NODE (1 << 10) /* the node to update configs on */ | |
7f342629 DS |
1103 | #define PEER_FLAG_LONESOUL (1 << 11) |
1104 | #define PEER_FLAG_DYNAMIC_NEIGHBOR (1 << 12) /* dynamic neighbor */ | |
1105 | #define PEER_FLAG_CAPABILITY_ENHE (1 << 13) /* Extended next-hop (rfc 5549)*/ | |
88177fe3 | 1106 | #define PEER_FLAG_IFPEER_V6ONLY (1 << 14) /* if-based peer is v6 only */ |
47cbc09b PM |
1107 | #define PEER_FLAG_IS_RFAPI_HD (1 << 15) /* attached to rfapi HD */ |
1108 | #define PEER_FLAG_ENFORCE_FIRST_AS (1 << 16) /* enforce-first-as */ | |
b90a8e13 PM |
1109 | #define PEER_FLAG_ROUTEADV (1 << 17) /* route advertise */ |
1110 | #define PEER_FLAG_TIMER (1 << 18) /* keepalive & holdtime */ | |
1111 | #define PEER_FLAG_TIMER_CONNECT (1 << 19) /* connect timer */ | |
a14810f4 PM |
1112 | #define PEER_FLAG_PASSWORD (1 << 20) /* password */ |
1113 | #define PEER_FLAG_LOCAL_AS (1 << 21) /* local-as */ | |
1114 | #define PEER_FLAG_UPDATE_SOURCE (1 << 22) /* update-source */ | |
02a82b47 | 1115 | |
b0965c44 | 1116 | /* BGP-GR Peer related flags */ |
1117 | #define PEER_FLAG_GRACEFUL_RESTART_HELPER (1 << 23) /* Helper */ | |
1118 | #define PEER_FLAG_GRACEFUL_RESTART (1 << 24) /* Graceful Restart */ | |
1119 | #define PEER_FLAG_GRACEFUL_RESTART_GLOBAL_INHERIT (1 << 25) /* Global-Inherit */ | |
1120 | ||
1121 | /* | |
1122 | *GR-Disabled mode means unset PEER_FLAG_GRACEFUL_RESTART | |
1123 | *& PEER_FLAG_GRACEFUL_RESTART_HELPER | |
1124 | *and PEER_FLAG_GRACEFUL_RESTART_GLOBAL_INHERIT | |
1125 | */ | |
1126 | ||
2ba1fe69 | 1127 | struct bgp_peer_gr PEER_GR_FSM[BGP_PEER_GR_MODE][BGP_PEER_GR_EVENT_CMD]; |
b0965c44 | 1128 | enum peer_mode peer_gr_present_state; |
1129 | /* Non stop forwarding afi-safi count for BGP gr feature*/ | |
1130 | uint8_t nsf_af_count; | |
1131 | ||
1132 | uint8_t peer_gr_new_status_flag; | |
1133 | #define PEER_GRACEFUL_RESTART_NEW_STATE_HELPER (1 << 0) | |
1134 | #define PEER_GRACEFUL_RESTART_NEW_STATE_RESTART (1 << 1) | |
794b37d5 | 1135 | #define PEER_GRACEFUL_RESTART_NEW_STATE_INHERIT (1 << 2) |
b0965c44 | 1136 | |
d62a17ae | 1137 | /* outgoing message sent in CEASE_ADMIN_SHUTDOWN notify */ |
1138 | char *tx_shutdown_message; | |
718e3744 | 1139 | |
d62a17ae | 1140 | /* NSF mode (graceful restart) */ |
d7c0a89a | 1141 | uint8_t nsf[AFI_MAX][SAFI_MAX]; |
9e3b51a7 | 1142 | /* EOR Send time */ |
1143 | time_t eor_stime[AFI_MAX][SAFI_MAX]; | |
1144 | /* Last update packet sent time */ | |
1145 | time_t pkt_stime[AFI_MAX][SAFI_MAX]; | |
93406d87 | 1146 | |
04e1c5bb QY |
1147 | /* Peer Per AF flags */ |
1148 | /* | |
9fb964de PM |
1149 | * Please consult the comments for *flags_override*, *flags_invert* and |
1150 | * *flags* to understand what these three arrays do. The address-family | |
1151 | * specific attributes are being treated the exact same way as global | |
1152 | * peer attributes. | |
04e1c5bb QY |
1153 | */ |
1154 | uint32_t af_flags_override[AFI_MAX][SAFI_MAX]; | |
27c05d4d | 1155 | uint32_t af_flags_invert[AFI_MAX][SAFI_MAX]; |
d7c0a89a | 1156 | uint32_t af_flags[AFI_MAX][SAFI_MAX]; |
718e3744 | 1157 | #define PEER_FLAG_SEND_COMMUNITY (1 << 0) /* send-community */ |
1158 | #define PEER_FLAG_SEND_EXT_COMMUNITY (1 << 1) /* send-community ext. */ | |
1159 | #define PEER_FLAG_NEXTHOP_SELF (1 << 2) /* next-hop-self */ | |
1160 | #define PEER_FLAG_REFLECTOR_CLIENT (1 << 3) /* reflector-client */ | |
1161 | #define PEER_FLAG_RSERVER_CLIENT (1 << 4) /* route-server-client */ | |
1162 | #define PEER_FLAG_SOFT_RECONFIG (1 << 5) /* soft-reconfiguration */ | |
1163 | #define PEER_FLAG_AS_PATH_UNCHANGED (1 << 6) /* transparent-as */ | |
1164 | #define PEER_FLAG_NEXTHOP_UNCHANGED (1 << 7) /* transparent-next-hop */ | |
1165 | #define PEER_FLAG_MED_UNCHANGED (1 << 8) /* transparent-next-hop */ | |
1166 | #define PEER_FLAG_DEFAULT_ORIGINATE (1 << 9) /* default-originate */ | |
1167 | #define PEER_FLAG_REMOVE_PRIVATE_AS (1 << 10) /* remove-private-as */ | |
1168 | #define PEER_FLAG_ALLOWAS_IN (1 << 11) /* set allowas-in */ | |
794b37d5 | 1169 | #define PEER_FLAG_ORF_PREFIX_SM (1 << 12) /* orf capability send-mode */ |
718e3744 | 1170 | #define PEER_FLAG_ORF_PREFIX_RM (1 << 13) /* orf capability receive-mode */ |
1171 | #define PEER_FLAG_MAX_PREFIX (1 << 14) /* maximum prefix */ | |
1172 | #define PEER_FLAG_MAX_PREFIX_WARNING (1 << 15) /* maximum prefix warning-only */ | |
0df7c91f | 1173 | #define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1 << 16) /* leave link-local nexthop unchanged */ |
a538debe | 1174 | #define PEER_FLAG_FORCE_NEXTHOP_SELF (1 << 17) /* next-hop-self force */ |
5000f21c DS |
1175 | #define PEER_FLAG_REMOVE_PRIVATE_AS_ALL (1 << 18) /* remove-private-as all */ |
1176 | #define PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE (1 << 19) /* remove-private-as replace-as */ | |
c7122e14 | 1177 | #define PEER_FLAG_AS_OVERRIDE (1 << 20) /* as-override */ |
88b8ed8d | 1178 | #define PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE (1 << 21) /* remove-private-as all replace-as */ |
d93f7ffc | 1179 | #define PEER_FLAG_WEIGHT (1 << 24) /* weight */ |
aac9ef6c | 1180 | #define PEER_FLAG_ALLOWAS_IN_ORIGIN (1 << 25) /* allowas-in origin */ |
57d187bc | 1181 | #define PEER_FLAG_SEND_LARGE_COMMUNITY (1 << 26) /* Send large Communities */ |
fde246e8 | 1182 | #define PEER_FLAG_MAX_PREFIX_OUT (1 << 27) /* outgoing maximum prefix */ |
9cbd06e0 | 1183 | #define PEER_FLAG_MAX_PREFIX_FORCE (1 << 28) /* maximum-prefix <num> force */ |
0df7c91f | 1184 | |
dcc68b5e MS |
1185 | enum bgp_addpath_strat addpath_type[AFI_MAX][SAFI_MAX]; |
1186 | ||
d62a17ae | 1187 | /* MD5 password */ |
1188 | char *password; | |
718e3744 | 1189 | |
d62a17ae | 1190 | /* default-originate route-map. */ |
1191 | struct { | |
1192 | char *name; | |
1193 | struct route_map *map; | |
1194 | } default_rmap[AFI_MAX][SAFI_MAX]; | |
718e3744 | 1195 | |
d62a17ae | 1196 | /* Peer status flags. */ |
d7c0a89a | 1197 | uint16_t sflags; |
718e3744 | 1198 | #define PEER_STATUS_ACCEPT_PEER (1 << 0) /* accept peer */ |
1199 | #define PEER_STATUS_PREFIX_OVERFLOW (1 << 1) /* prefix-overflow */ | |
1200 | #define PEER_STATUS_CAPABILITY_OPEN (1 << 2) /* capability open send */ | |
1201 | #define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */ | |
1202 | #define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */ | |
93406d87 | 1203 | #define PEER_STATUS_NSF_MODE (1 << 5) /* NSF aware peer */ |
1204 | #define PEER_STATUS_NSF_WAIT (1 << 6) /* wait comeback peer */ | |
718e3744 | 1205 | |
d62a17ae | 1206 | /* Peer status af flags (reset in bgp_stop) */ |
d7c0a89a | 1207 | uint16_t af_sflags[AFI_MAX][SAFI_MAX]; |
718e3744 | 1208 | #define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */ |
1209 | #define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */ | |
840fced9 DS |
1210 | #define PEER_STATUS_PREFIX_THRESHOLD (1 << 2) /* exceed prefix-threshold */ |
1211 | #define PEER_STATUS_PREFIX_LIMIT (1 << 3) /* exceed prefix-limit */ | |
1212 | #define PEER_STATUS_EOR_SEND (1 << 4) /* end-of-rib send to peer */ | |
1213 | #define PEER_STATUS_EOR_RECEIVED (1 << 5) /* end-of-rib received from peer */ | |
e0701b79 | 1214 | |
b90a8e13 | 1215 | /* Configured timer values. */ |
1588f6f4 QY |
1216 | _Atomic uint32_t holdtime; |
1217 | _Atomic uint32_t keepalive; | |
1218 | _Atomic uint32_t connect; | |
1219 | _Atomic uint32_t routeadv; | |
d62a17ae | 1220 | |
1221 | /* Timer values. */ | |
1588f6f4 QY |
1222 | _Atomic uint32_t v_start; |
1223 | _Atomic uint32_t v_connect; | |
1224 | _Atomic uint32_t v_holdtime; | |
1225 | _Atomic uint32_t v_keepalive; | |
1226 | _Atomic uint32_t v_routeadv; | |
1227 | _Atomic uint32_t v_pmax_restart; | |
1228 | _Atomic uint32_t v_gr_restart; | |
d62a17ae | 1229 | |
1230 | /* Threads. */ | |
1231 | struct thread *t_read; | |
424ab01d | 1232 | struct thread *t_write; |
d62a17ae | 1233 | struct thread *t_start; |
387f984e QY |
1234 | struct thread *t_connect_check_r; |
1235 | struct thread *t_connect_check_w; | |
d62a17ae | 1236 | struct thread *t_connect; |
1237 | struct thread *t_holdtime; | |
d62a17ae | 1238 | struct thread *t_routeadv; |
1239 | struct thread *t_pmax_restart; | |
1240 | struct thread *t_gr_restart; | |
1241 | struct thread *t_gr_stale; | |
56257a44 | 1242 | struct thread *t_generate_updgrp_packets; |
424ab01d | 1243 | struct thread *t_process_packet; |
d62a17ae | 1244 | |
49507a6f | 1245 | /* Thread flags. */ |
0545c373 | 1246 | _Atomic uint32_t thread_flags; |
b750b0ba QY |
1247 | #define PEER_THREAD_WRITES_ON (1 << 0) |
1248 | #define PEER_THREAD_READS_ON (1 << 1) | |
1249 | #define PEER_THREAD_KEEPALIVES_ON (1 << 2) | |
d62a17ae | 1250 | /* workqueues */ |
1251 | struct work_queue *clear_node_queue; | |
1252 | ||
a4d82a8a PZ |
1253 | #define PEER_TOTAL_RX(peer) \ |
1254 | atomic_load_explicit(&peer->open_in, memory_order_relaxed) \ | |
1255 | + atomic_load_explicit(&peer->update_in, memory_order_relaxed) \ | |
1256 | + atomic_load_explicit(&peer->notify_in, memory_order_relaxed) \ | |
1257 | + atomic_load_explicit(&peer->refresh_in, \ | |
1258 | memory_order_relaxed) \ | |
1259 | + atomic_load_explicit(&peer->keepalive_in, \ | |
1260 | memory_order_relaxed) \ | |
1261 | + atomic_load_explicit(&peer->dynamic_cap_in, \ | |
1262 | memory_order_relaxed) | |
1263 | ||
1264 | #define PEER_TOTAL_TX(peer) \ | |
1265 | atomic_load_explicit(&peer->open_out, memory_order_relaxed) \ | |
1266 | + atomic_load_explicit(&peer->update_out, \ | |
1267 | memory_order_relaxed) \ | |
1268 | + atomic_load_explicit(&peer->notify_out, \ | |
1269 | memory_order_relaxed) \ | |
1270 | + atomic_load_explicit(&peer->refresh_out, \ | |
1271 | memory_order_relaxed) \ | |
1272 | + atomic_load_explicit(&peer->keepalive_out, \ | |
1273 | memory_order_relaxed) \ | |
1274 | + atomic_load_explicit(&peer->dynamic_cap_out, \ | |
1275 | memory_order_relaxed) | |
0112e9e0 | 1276 | |
d62a17ae | 1277 | /* Statistics field */ |
996c9314 LB |
1278 | _Atomic uint32_t open_in; /* Open message input count */ |
1279 | _Atomic uint32_t open_out; /* Open message output count */ | |
1588f6f4 QY |
1280 | _Atomic uint32_t update_in; /* Update message input count */ |
1281 | _Atomic uint32_t update_out; /* Update message ouput count */ | |
1282 | _Atomic time_t update_time; /* Update message received time. */ | |
1283 | _Atomic uint32_t keepalive_in; /* Keepalive input count */ | |
1284 | _Atomic uint32_t keepalive_out; /* Keepalive output count */ | |
1285 | _Atomic uint32_t notify_in; /* Notify input count */ | |
1286 | _Atomic uint32_t notify_out; /* Notify output count */ | |
1287 | _Atomic uint32_t refresh_in; /* Route Refresh input count */ | |
1288 | _Atomic uint32_t refresh_out; /* Route Refresh output count */ | |
1289 | _Atomic uint32_t dynamic_cap_in; /* Dynamic Capability input count. */ | |
a4d82a8a | 1290 | _Atomic uint32_t dynamic_cap_out; /* Dynamic Capability output count. */ |
d62a17ae | 1291 | |
b4d46cc9 DL |
1292 | uint32_t stat_pfx_filter; |
1293 | uint32_t stat_pfx_aspath_loop; | |
1294 | uint32_t stat_pfx_originator_loop; | |
1295 | uint32_t stat_pfx_cluster_loop; | |
1296 | uint32_t stat_pfx_nh_invalid; | |
1297 | uint32_t stat_pfx_dup_withdraw; | |
1298 | uint32_t stat_upd_7606; /* RFC7606: treat-as-withdraw */ | |
1299 | ||
d62a17ae | 1300 | /* BGP state count */ |
d7c0a89a QY |
1301 | uint32_t established; /* Established */ |
1302 | uint32_t dropped; /* Dropped */ | |
d62a17ae | 1303 | |
1304 | /* Update delay related fields */ | |
d7c0a89a | 1305 | uint8_t update_delay_over; /* When this is set, BGP is no more waiting |
d62a17ae | 1306 | for EOR */ |
1307 | ||
1308 | /* Syncronization list and time. */ | |
1309 | struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX]; | |
1310 | time_t synctime; | |
1588f6f4 QY |
1311 | /* timestamp when the last UPDATE msg was written */ |
1312 | _Atomic time_t last_write; | |
1313 | /* timestamp when the last msg was written */ | |
1314 | _Atomic time_t last_update; | |
d62a17ae | 1315 | |
d62a17ae | 1316 | /* Notify data. */ |
1317 | struct bgp_notify notify; | |
1318 | ||
d62a17ae | 1319 | /* Filter structure. */ |
1320 | struct bgp_filter filter[AFI_MAX][SAFI_MAX]; | |
1321 | ||
70ee29b4 PM |
1322 | /* |
1323 | * Parallel array to filter that indicates whether each filter | |
1324 | * originates from a peer-group or if it is config that is specific to | |
1325 | * this individual peer. If a filter is set independent of the | |
1326 | * peer-group the appropriate bit should be set here. If this peer is a | |
1327 | * peer-group, this memory region should be all zeros. The assumption | |
1328 | * is that the default state for all flags is unset. Due to filters | |
1329 | * having a direction (e.g. in/out/...), this array has a third | |
1330 | * dimension for storing the overrides independently per direction. | |
1331 | * | |
1332 | * Notes: | |
1333 | * - if a filter for an individual peer is unset, the corresponding | |
1334 | * override flag is unset and the peer is considered to be back in | |
1335 | * sync with the peer-group. | |
1336 | * - This does *not* contain the filter values, rather it contains | |
1337 | * whether the filter in filter (struct bgp_filter) is peer-specific. | |
1338 | */ | |
73b1082e | 1339 | uint8_t filter_override[AFI_MAX][SAFI_MAX][FILTER_MAX]; |
70ee29b4 PM |
1340 | #define PEER_FT_DISTRIBUTE_LIST (1 << 0) /* distribute-list */ |
1341 | #define PEER_FT_FILTER_LIST (1 << 1) /* filter-list */ | |
1342 | #define PEER_FT_PREFIX_LIST (1 << 2) /* prefix-list */ | |
1343 | #define PEER_FT_ROUTE_MAP (1 << 3) /* route-map */ | |
1344 | #define PEER_FT_UNSUPPRESS_MAP (1 << 4) /* unsuppress-map */ | |
1345 | ||
d62a17ae | 1346 | /* ORF Prefix-list */ |
1347 | struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX]; | |
1348 | ||
1349 | /* Text description of last attribute rcvd */ | |
1350 | char rcvd_attr_str[BUFSIZ]; | |
1351 | ||
1352 | /* Track if we printed the attribute in debugs */ | |
1353 | int rcvd_attr_printed; | |
1354 | ||
9cbd06e0 | 1355 | /* Accepted prefix count */ |
a0a87037 | 1356 | uint32_t pcount[AFI_MAX][SAFI_MAX]; |
d62a17ae | 1357 | |
1358 | /* Max prefix count. */ | |
a0a87037 | 1359 | uint32_t pmax[AFI_MAX][SAFI_MAX]; |
d7c0a89a QY |
1360 | uint8_t pmax_threshold[AFI_MAX][SAFI_MAX]; |
1361 | uint16_t pmax_restart[AFI_MAX][SAFI_MAX]; | |
e0701b79 | 1362 | #define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75 |
718e3744 | 1363 | |
fde246e8 DA |
1364 | /* Send prefix count. */ |
1365 | uint32_t pmax_out[AFI_MAX][SAFI_MAX]; | |
1366 | ||
d62a17ae | 1367 | /* allowas-in. */ |
1368 | char allowas_in[AFI_MAX][SAFI_MAX]; | |
ac41b2a2 | 1369 | |
d62a17ae | 1370 | /* weight */ |
1371 | unsigned long weight[AFI_MAX][SAFI_MAX]; | |
d93f7ffc | 1372 | |
d62a17ae | 1373 | /* peer reset cause */ |
1a1f4534 | 1374 | uint8_t last_reset; |
e0701b79 | 1375 | #define PEER_DOWN_RID_CHANGE 1 /* bgp router-id command */ |
1376 | #define PEER_DOWN_REMOTE_AS_CHANGE 2 /* neighbor remote-as command */ | |
1377 | #define PEER_DOWN_LOCAL_AS_CHANGE 3 /* neighbor local-as command */ | |
1378 | #define PEER_DOWN_CLID_CHANGE 4 /* bgp cluster-id command */ | |
1e91f1d1 | 1379 | #define PEER_DOWN_CONFED_ID_CHANGE 5 /* bgp confederation id command */ |
e0701b79 | 1380 | #define PEER_DOWN_CONFED_PEER_CHANGE 6 /* bgp confederation peer command */ |
1e91f1d1 DS |
1381 | #define PEER_DOWN_RR_CLIENT_CHANGE 7 /* neighbor rr-client command */ |
1382 | #define PEER_DOWN_RS_CLIENT_CHANGE 8 /* neighbor rs-client command */ | |
e0701b79 | 1383 | #define PEER_DOWN_UPDATE_SOURCE_CHANGE 9 /* neighbor update-source command */ |
1384 | #define PEER_DOWN_AF_ACTIVATE 10 /* neighbor activate command */ | |
1385 | #define PEER_DOWN_USER_SHUTDOWN 11 /* neighbor shutdown command */ | |
1386 | #define PEER_DOWN_USER_RESET 12 /* clear ip bgp command */ | |
1387 | #define PEER_DOWN_NOTIFY_RECEIVED 13 /* notification received */ | |
1388 | #define PEER_DOWN_NOTIFY_SEND 14 /* notification send */ | |
1389 | #define PEER_DOWN_CLOSE_SESSION 15 /* tcp session close */ | |
1390 | #define PEER_DOWN_NEIGHBOR_DELETE 16 /* neghbor delete */ | |
1391 | #define PEER_DOWN_RMAP_BIND 17 /* neghbor peer-group command */ | |
1392 | #define PEER_DOWN_RMAP_UNBIND 18 /* no neighbor peer-group command */ | |
1393 | #define PEER_DOWN_CAPABILITY_CHANGE 19 /* neighbor capability command */ | |
1394 | #define PEER_DOWN_PASSIVE_CHANGE 20 /* neighbor passive command */ | |
1395 | #define PEER_DOWN_MULTIHOP_CHANGE 21 /* neighbor multihop command */ | |
93406d87 | 1396 | #define PEER_DOWN_NSF_CLOSE_SESSION 22 /* NSF tcp session close */ |
8ffedcea | 1397 | #define PEER_DOWN_V6ONLY_CHANGE 23 /* if-based peering v6only toggled */ |
7bbc6864 | 1398 | #define PEER_DOWN_BFD_DOWN 24 /* BFD down */ |
e60480bd DD |
1399 | #define PEER_DOWN_IF_DOWN 25 /* Interface down */ |
1400 | #define PEER_DOWN_NBR_ADDR_DEL 26 /* Peer address lost */ | |
3577f1c5 DD |
1401 | #define PEER_DOWN_WAITING_NHT 27 /* Waiting for NHT to resolve */ |
1402 | #define PEER_DOWN_NBR_ADDR 28 /* Waiting for peer IPv6 IP Addr */ | |
1403 | #define PEER_DOWN_VRF_UNINIT 29 /* Associated VRF is not init yet */ | |
05912a17 | 1404 | #define PEER_DOWN_NOAFI_ACTIVATED 30 /* No AFI/SAFI activated for peer */ |
fb29348a | 1405 | #define PEER_DOWN_AS_SETS_REJECT 31 /* Reject routes with AS_SET */ |
1e91f1d1 | 1406 | #define PEER_DOWN_WAITING_OPEN 32 /* Waiting for open to succeed */ |
07d1e5d9 | 1407 | #define PEER_DOWN_PFX_COUNT 33 /* Reached received prefix count */ |
1e91f1d1 DS |
1408 | /* |
1409 | * Remember to update peer_down_str in bgp_fsm.c when you add | |
1410 | * a new value to the last_reset reason | |
1411 | */ | |
1412 | ||
1a1f4534 | 1413 | size_t last_reset_cause_size; |
d7c0a89a | 1414 | uint8_t last_reset_cause[BGP_MAX_PACKET_SIZE]; |
e0701b79 | 1415 | |
d62a17ae | 1416 | /* The kind of route-map Flags.*/ |
a3116965 | 1417 | uint16_t rmap_type; |
ac41b2a2 | 1418 | #define PEER_RMAP_TYPE_IN (1 << 0) /* neighbor route-map in */ |
1419 | #define PEER_RMAP_TYPE_OUT (1 << 1) /* neighbor route-map out */ | |
1420 | #define PEER_RMAP_TYPE_NETWORK (1 << 2) /* network route-map */ | |
1421 | #define PEER_RMAP_TYPE_REDISTRIBUTE (1 << 3) /* redistribute route-map */ | |
1422 | #define PEER_RMAP_TYPE_DEFAULT (1 << 4) /* default-originate route-map */ | |
1423 | #define PEER_RMAP_TYPE_NOSET (1 << 5) /* not allow to set commands */ | |
fee0f4c6 | 1424 | #define PEER_RMAP_TYPE_IMPORT (1 << 6) /* neighbor route-map import */ |
1425 | #define PEER_RMAP_TYPE_EXPORT (1 << 7) /* neighbor route-map export */ | |
20894f50 | 1426 | #define PEER_RMAP_TYPE_AGGREGATE (1 << 8) /* aggregate-address route-map */ |
6410e93a | 1427 | |
d62a17ae | 1428 | /* peer specific BFD information */ |
1429 | struct bfd_info *bfd_info; | |
04b6bdc0 | 1430 | |
d62a17ae | 1431 | /* hostname and domainname advertised by host */ |
1432 | char *hostname; | |
1433 | char *domainname; | |
19df7279 | 1434 | |
2b31007c RZ |
1435 | /* Sender side AS path loop detection. */ |
1436 | bool as_path_loop_detection; | |
1437 | ||
d62a17ae | 1438 | QOBJ_FIELDS |
718e3744 | 1439 | }; |
19df7279 | 1440 | DECLARE_QOBJ_TYPE(peer) |
718e3744 | 1441 | |
598ce6bd | 1442 | /* Inherit peer attribute from peer-group. */ |
e7103a96 PM |
1443 | #define PEER_ATTR_INHERIT(peer, group, attr) \ |
1444 | ((peer)->attr = (group)->conf->attr) | |
1445 | #define PEER_STR_ATTR_INHERIT(peer, group, attr, mt) \ | |
598ce6bd | 1446 | do { \ |
e1b36e13 | 1447 | XFREE(mt, (peer)->attr); \ |
e7103a96 PM |
1448 | if ((group)->conf->attr) \ |
1449 | (peer)->attr = XSTRDUP(mt, (group)->conf->attr); \ | |
598ce6bd PM |
1450 | else \ |
1451 | (peer)->attr = NULL; \ | |
1452 | } while (0) | |
a14810f4 PM |
1453 | #define PEER_SU_ATTR_INHERIT(peer, group, attr) \ |
1454 | do { \ | |
1455 | if ((peer)->attr) \ | |
1456 | sockunion_free((peer)->attr); \ | |
1457 | if ((group)->conf->attr) \ | |
1458 | (peer)->attr = sockunion_dup((group)->conf->attr); \ | |
1459 | else \ | |
1460 | (peer)->attr = NULL; \ | |
1461 | } while (0) | |
598ce6bd | 1462 | |
ad4cbda1 | 1463 | /* Check if suppress start/restart of sessions to peer. */ |
d62a17ae | 1464 | #define BGP_PEER_START_SUPPRESSED(P) \ |
1465 | (CHECK_FLAG((P)->flags, PEER_FLAG_SHUTDOWN) \ | |
cb9196e7 DS |
1466 | || CHECK_FLAG((P)->sflags, PEER_STATUS_PREFIX_OVERFLOW) \ |
1467 | || CHECK_FLAG((P)->bgp->flags, BGP_FLAG_SHUTDOWN)) | |
ad4cbda1 | 1468 | |
0df7c91f PJ |
1469 | #define PEER_PASSWORD_MINLEN (1) |
1470 | #define PEER_PASSWORD_MAXLEN (80) | |
1471 | ||
718e3744 | 1472 | /* This structure's member directly points incoming packet data |
1473 | stream. */ | |
d62a17ae | 1474 | struct bgp_nlri { |
1475 | /* AFI. */ | |
a46a2e9b | 1476 | uint16_t afi; /* iana_afi_t */ |
718e3744 | 1477 | |
d62a17ae | 1478 | /* SAFI. */ |
a46a2e9b | 1479 | uint8_t safi; /* iana_safi_t */ |
718e3744 | 1480 | |
d62a17ae | 1481 | /* Pointer to NLRI byte stream. */ |
d7c0a89a | 1482 | uint8_t *nlri; |
718e3744 | 1483 | |
d62a17ae | 1484 | /* Length of whole NLRI. */ |
1485 | bgp_size_t length; | |
718e3744 | 1486 | }; |
1487 | ||
1488 | /* BGP versions. */ | |
1489 | #define BGP_VERSION_4 4 | |
718e3744 | 1490 | |
1491 | /* Default BGP port number. */ | |
1492 | #define BGP_PORT_DEFAULT 179 | |
1493 | ||
718e3744 | 1494 | /* BGP minimum message size. */ |
1495 | #define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10) | |
1496 | #define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4) | |
1497 | #define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2) | |
1498 | #define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0) | |
1499 | #define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4) | |
1500 | #define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3) | |
1501 | ||
1502 | /* BGP message types. */ | |
1503 | #define BGP_MSG_OPEN 1 | |
1504 | #define BGP_MSG_UPDATE 2 | |
1505 | #define BGP_MSG_NOTIFY 3 | |
1506 | #define BGP_MSG_KEEPALIVE 4 | |
1507 | #define BGP_MSG_ROUTE_REFRESH_NEW 5 | |
1508 | #define BGP_MSG_CAPABILITY 6 | |
1509 | #define BGP_MSG_ROUTE_REFRESH_OLD 128 | |
1510 | ||
1511 | /* BGP open optional parameter. */ | |
1512 | #define BGP_OPEN_OPT_AUTH 1 | |
1513 | #define BGP_OPEN_OPT_CAP 2 | |
1514 | ||
1515 | /* BGP4 attribute type codes. */ | |
1516 | #define BGP_ATTR_ORIGIN 1 | |
1517 | #define BGP_ATTR_AS_PATH 2 | |
1518 | #define BGP_ATTR_NEXT_HOP 3 | |
1519 | #define BGP_ATTR_MULTI_EXIT_DISC 4 | |
1520 | #define BGP_ATTR_LOCAL_PREF 5 | |
1521 | #define BGP_ATTR_ATOMIC_AGGREGATE 6 | |
1522 | #define BGP_ATTR_AGGREGATOR 7 | |
1523 | #define BGP_ATTR_COMMUNITIES 8 | |
1524 | #define BGP_ATTR_ORIGINATOR_ID 9 | |
1525 | #define BGP_ATTR_CLUSTER_LIST 10 | |
1526 | #define BGP_ATTR_DPA 11 | |
1527 | #define BGP_ATTR_ADVERTISER 12 | |
1528 | #define BGP_ATTR_RCID_PATH 13 | |
1529 | #define BGP_ATTR_MP_REACH_NLRI 14 | |
1530 | #define BGP_ATTR_MP_UNREACH_NLRI 15 | |
1531 | #define BGP_ATTR_EXT_COMMUNITIES 16 | |
0b2aa3a0 PJ |
1532 | #define BGP_ATTR_AS4_PATH 17 |
1533 | #define BGP_ATTR_AS4_AGGREGATOR 18 | |
41367172 | 1534 | #define BGP_ATTR_AS_PATHLIMIT 21 |
a21bd7a3 | 1535 | #define BGP_ATTR_PMSI_TUNNEL 22 |
f4c89855 | 1536 | #define BGP_ATTR_ENCAP 23 |
57d187bc | 1537 | #define BGP_ATTR_LARGE_COMMUNITIES 32 |
c5a543b4 | 1538 | #define BGP_ATTR_PREFIX_SID 40 |
1e20238a | 1539 | #ifdef ENABLE_BGP_VNC_ATTR |
65efcfce LB |
1540 | #define BGP_ATTR_VNC 255 |
1541 | #endif | |
718e3744 | 1542 | |
1543 | /* BGP update origin. */ | |
1544 | #define BGP_ORIGIN_IGP 0 | |
1545 | #define BGP_ORIGIN_EGP 1 | |
1546 | #define BGP_ORIGIN_INCOMPLETE 2 | |
229757f1 | 1547 | #define BGP_ORIGIN_UNSPECIFIED 255 |
718e3744 | 1548 | |
1549 | /* BGP notify message codes. */ | |
1550 | #define BGP_NOTIFY_HEADER_ERR 1 | |
1551 | #define BGP_NOTIFY_OPEN_ERR 2 | |
1552 | #define BGP_NOTIFY_UPDATE_ERR 3 | |
1553 | #define BGP_NOTIFY_HOLD_ERR 4 | |
1554 | #define BGP_NOTIFY_FSM_ERR 5 | |
1555 | #define BGP_NOTIFY_CEASE 6 | |
1556 | #define BGP_NOTIFY_CAPABILITY_ERR 7 | |
718e3744 | 1557 | |
3893aeee DA |
1558 | /* Subcodes for BGP Finite State Machine Error */ |
1559 | #define BGP_NOTIFY_FSM_ERR_SUBCODE_UNSPECIFIC 0 | |
1560 | #define BGP_NOTIFY_FSM_ERR_SUBCODE_OPENSENT 1 | |
1561 | #define BGP_NOTIFY_FSM_ERR_SUBCODE_OPENCONFIRM 2 | |
1562 | #define BGP_NOTIFY_FSM_ERR_SUBCODE_ESTABLISHED 3 | |
1563 | ||
4b4e07d2 DT |
1564 | #define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0 |
1565 | ||
718e3744 | 1566 | /* BGP_NOTIFY_HEADER_ERR sub codes. */ |
1567 | #define BGP_NOTIFY_HEADER_NOT_SYNC 1 | |
1568 | #define BGP_NOTIFY_HEADER_BAD_MESLEN 2 | |
1569 | #define BGP_NOTIFY_HEADER_BAD_MESTYPE 3 | |
718e3744 | 1570 | |
1571 | /* BGP_NOTIFY_OPEN_ERR sub codes. */ | |
14051b36 | 1572 | #define BGP_NOTIFY_OPEN_MALFORMED_ATTR 0 |
718e3744 | 1573 | #define BGP_NOTIFY_OPEN_UNSUP_VERSION 1 |
1574 | #define BGP_NOTIFY_OPEN_BAD_PEER_AS 2 | |
1575 | #define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3 | |
1576 | #define BGP_NOTIFY_OPEN_UNSUP_PARAM 4 | |
1577 | #define BGP_NOTIFY_OPEN_AUTH_FAILURE 5 | |
1578 | #define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6 | |
1579 | #define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7 | |
718e3744 | 1580 | |
1581 | /* BGP_NOTIFY_UPDATE_ERR sub codes. */ | |
1582 | #define BGP_NOTIFY_UPDATE_MAL_ATTR 1 | |
1583 | #define BGP_NOTIFY_UPDATE_UNREC_ATTR 2 | |
1584 | #define BGP_NOTIFY_UPDATE_MISS_ATTR 3 | |
1585 | #define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4 | |
1586 | #define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5 | |
1587 | #define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6 | |
1588 | #define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7 | |
1589 | #define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8 | |
1590 | #define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9 | |
1591 | #define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10 | |
1592 | #define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11 | |
718e3744 | 1593 | |
4b4e07d2 | 1594 | /* BGP_NOTIFY_CEASE sub codes (RFC 4486). */ |
718e3744 | 1595 | #define BGP_NOTIFY_CEASE_MAX_PREFIX 1 |
1596 | #define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2 | |
1597 | #define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3 | |
1598 | #define BGP_NOTIFY_CEASE_ADMIN_RESET 4 | |
1599 | #define BGP_NOTIFY_CEASE_CONNECT_REJECT 5 | |
1600 | #define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6 | |
545acafb | 1601 | #define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7 |
1602 | #define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8 | |
718e3744 | 1603 | |
1604 | /* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */ | |
1605 | #define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1 | |
1606 | #define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2 | |
1607 | #define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3 | |
718e3744 | 1608 | |
718e3744 | 1609 | /* BGP timers default value. */ |
5ca5f1c8 | 1610 | #define BGP_INIT_START_TIMER 1 |
5d5393b9 DL |
1611 | /* The following 3 are RFC defaults that are overridden in bgp_vty.c with |
1612 | * version-/profile-specific values. The values here do not matter, they only | |
1613 | * exist to provide a clear layering separation between core and CLI. | |
1614 | */ | |
1615 | #define BGP_DEFAULT_HOLDTIME 180 | |
1616 | #define BGP_DEFAULT_KEEPALIVE 60 | |
1617 | #define BGP_DEFAULT_CONNECT_RETRY 120 | |
1618 | ||
12179ba3 | 1619 | #define BGP_DEFAULT_EBGP_ROUTEADV 0 |
1670355a | 1620 | #define BGP_DEFAULT_IBGP_ROUTEADV 0 |
718e3744 | 1621 | |
1622 | /* BGP default local preference. */ | |
1623 | #define BGP_DEFAULT_LOCAL_PREF 100 | |
1624 | ||
7f323236 DW |
1625 | /* BGP local-preference to send when 'bgp graceful-shutdown' |
1626 | * is configured */ | |
1627 | #define BGP_GSHUT_LOCAL_PREF 0 | |
1628 | ||
3f9c7369 DS |
1629 | /* BGP default subgroup packet queue max . */ |
1630 | #define BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX 40 | |
1631 | ||
538621f2 | 1632 | /* BGP graceful restart */ |
1633 | #define BGP_DEFAULT_RESTART_TIME 120 | |
1634 | #define BGP_DEFAULT_STALEPATH_TIME 360 | |
cfd47646 | 1635 | #define BGP_DEFAULT_SELECT_DEFERRAL_TIME 360 |
2d3dd828 | 1636 | #define BGP_DEFAULT_RIB_STALE_TIME 500 |
538621f2 | 1637 | |
718e3744 | 1638 | /* BGP uptime string length. */ |
1639 | #define BGP_UPTIME_LEN 25 | |
1640 | ||
1641 | /* Default configuration settings for bgpd. */ | |
1642 | #define BGP_VTY_PORT 2605 | |
718e3744 | 1643 | #define BGP_DEFAULT_CONFIG "bgpd.conf" |
1644 | ||
f14e6fdb DS |
1645 | /* BGP Dynamic Neighbors feature */ |
1646 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT 100 | |
1647 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_MIN 1 | |
1648 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_MAX 5000 | |
1649 | ||
718e3744 | 1650 | /* Flag for peer_clear_soft(). */ |
d62a17ae | 1651 | enum bgp_clear_type { |
1652 | BGP_CLEAR_SOFT_NONE, | |
1653 | BGP_CLEAR_SOFT_OUT, | |
1654 | BGP_CLEAR_SOFT_IN, | |
1655 | BGP_CLEAR_SOFT_BOTH, | |
1656 | BGP_CLEAR_SOFT_IN_ORF_PREFIX | |
718e3744 | 1657 | }; |
1658 | ||
1659 | /* Macros. */ | |
424ab01d | 1660 | #define BGP_INPUT(P) ((P)->curr) |
2d34fb80 | 1661 | #define BGP_INPUT_PNT(P) (stream_pnt(BGP_INPUT(P))) |
d62a17ae | 1662 | #define BGP_IS_VALID_STATE_FOR_NOTIF(S) \ |
1663 | (((S) == OpenSent) || ((S) == OpenConfirm) || ((S) == Established)) | |
718e3744 | 1664 | |
718e3744 | 1665 | /* BGP error codes. */ |
1666 | #define BGP_SUCCESS 0 | |
5d5393b9 | 1667 | #define BGP_CREATED 1 |
718e3744 | 1668 | #define BGP_ERR_INVALID_VALUE -1 |
1669 | #define BGP_ERR_INVALID_FLAG -2 | |
1670 | #define BGP_ERR_INVALID_AS -3 | |
1671 | #define BGP_ERR_INVALID_BGP -4 | |
1672 | #define BGP_ERR_PEER_GROUP_MEMBER -5 | |
c8560b44 DW |
1673 | #define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -7 |
1674 | #define BGP_ERR_PEER_GROUP_CANT_CHANGE -8 | |
1675 | #define BGP_ERR_PEER_GROUP_MISMATCH -9 | |
1676 | #define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -10 | |
c8560b44 DW |
1677 | #define BGP_ERR_AS_MISMATCH -12 |
1678 | #define BGP_ERR_PEER_FLAG_CONFLICT -13 | |
1679 | #define BGP_ERR_PEER_GROUP_SHUTDOWN -14 | |
1680 | #define BGP_ERR_PEER_FILTER_CONFLICT -15 | |
1681 | #define BGP_ERR_NOT_INTERNAL_PEER -16 | |
1682 | #define BGP_ERR_REMOVE_PRIVATE_AS -17 | |
1683 | #define BGP_ERR_AF_UNCONFIGURED -18 | |
1684 | #define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -19 | |
1685 | #define BGP_ERR_INSTANCE_MISMATCH -20 | |
1686 | #define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -21 | |
1687 | #define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -22 | |
1688 | #define BGP_ERR_TCPSIG_FAILED -23 | |
1689 | #define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -24 | |
1690 | #define BGP_ERR_NO_IBGP_WITH_TTLHACK -25 | |
1691 | #define BGP_ERR_NO_INTERFACE_CONFIG -26 | |
1692 | #define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS -27 | |
1693 | #define BGP_ERR_AS_OVERRIDE -28 | |
1694 | #define BGP_ERR_INVALID_DYNAMIC_NEIGHBORS_LIMIT -29 | |
1695 | #define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_EXISTS -30 | |
1696 | #define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND -31 | |
1697 | #define BGP_ERR_INVALID_FOR_DYNAMIC_PEER -32 | |
1698 | #define BGP_ERR_MAX -33 | |
63fa10b5 | 1699 | #define BGP_ERR_INVALID_FOR_DIRECT_PEER -34 |
9bedbb1e | 1700 | #define BGP_ERR_PEER_SAFI_CONFLICT -35 |
718e3744 | 1701 | |
b0965c44 | 1702 | /* BGP GR ERRORS */ |
b0965c44 | 1703 | #define BGP_ERR_GR_INVALID_CMD -36 |
1704 | #define BGP_ERR_GR_OPERATION_FAILED -37 | |
1705 | #define BGP_GR_NO_OPERATION -38 | |
1706 | ||
3f9c7369 DS |
1707 | /* |
1708 | * Enumeration of different policy kinds a peer can be configured with. | |
1709 | */ | |
d62a17ae | 1710 | typedef enum { |
1711 | BGP_POLICY_ROUTE_MAP, | |
1712 | BGP_POLICY_FILTER_LIST, | |
1713 | BGP_POLICY_PREFIX_LIST, | |
1714 | BGP_POLICY_DISTRIBUTE_LIST, | |
3f9c7369 DS |
1715 | } bgp_policy_type_e; |
1716 | ||
dcc68b5e MS |
1717 | /* peer_flag_change_type. */ |
1718 | enum peer_change_type { | |
1719 | peer_change_none, | |
1720 | peer_change_reset, | |
1721 | peer_change_reset_in, | |
1722 | peer_change_reset_out, | |
1723 | }; | |
1724 | ||
718e3744 | 1725 | extern struct bgp_master *bm; |
37fe7731 | 1726 | extern unsigned int multipath_num; |
718e3744 | 1727 | |
718e3744 | 1728 | /* Prototypes. */ |
d62a17ae | 1729 | extern void bgp_terminate(void); |
1730 | extern void bgp_reset(void); | |
1731 | extern time_t bgp_clock(void); | |
1732 | extern void bgp_zclient_reset(void); | |
d62a17ae | 1733 | extern struct bgp *bgp_get_default(void); |
1734 | extern struct bgp *bgp_lookup(as_t, const char *); | |
1735 | extern struct bgp *bgp_lookup_by_name(const char *); | |
1736 | extern struct bgp *bgp_lookup_by_vrf_id(vrf_id_t); | |
e2f3a930 T |
1737 | extern struct bgp *bgp_get_evpn(void); |
1738 | extern void bgp_set_evpn(struct bgp *bgp); | |
d62a17ae | 1739 | extern struct peer *peer_lookup(struct bgp *, union sockunion *); |
1740 | extern struct peer *peer_lookup_by_conf_if(struct bgp *, const char *); | |
04b6bdc0 | 1741 | extern struct peer *peer_lookup_by_hostname(struct bgp *, const char *); |
d62a17ae | 1742 | extern void bgp_peer_conf_if_to_su_update(struct peer *); |
ffd0c037 | 1743 | extern int peer_group_listen_range_del(struct peer_group *, struct prefix *); |
d62a17ae | 1744 | extern struct peer_group *peer_group_lookup(struct bgp *, const char *); |
1745 | extern struct peer_group *peer_group_get(struct bgp *, const char *); | |
1746 | extern struct peer *peer_create_bind_dynamic_neighbor(struct bgp *, | |
1747 | union sockunion *, | |
1748 | struct peer_group *); | |
1749 | extern struct prefix * | |
1750 | peer_group_lookup_dynamic_neighbor_range(struct peer_group *, struct prefix *); | |
1751 | extern struct peer_group *peer_group_lookup_dynamic_neighbor(struct bgp *, | |
1752 | struct prefix *, | |
1753 | struct prefix **); | |
1754 | extern struct peer *peer_lookup_dynamic_neighbor(struct bgp *, | |
1755 | union sockunion *); | |
28066f4b DS |
1756 | |
1757 | /* | |
1758 | * Peers are incredibly easy to memory leak | |
1759 | * due to the various ways that they are actually used | |
1760 | * Provide some functionality to debug locks and unlocks | |
1761 | */ | |
1762 | extern struct peer *peer_lock_with_caller(const char *, struct peer *); | |
1763 | extern struct peer *peer_unlock_with_caller(const char *, struct peer *); | |
1764 | #define peer_unlock(A) peer_unlock_with_caller(__FUNCTION__, (A)) | |
1765 | #define peer_lock(B) peer_lock_with_caller(__FUNCTION__, (B)) | |
1766 | ||
d62a17ae | 1767 | extern bgp_peer_sort_t peer_sort(struct peer *peer); |
bf0d28dc DS |
1768 | extern bgp_peer_sort_t peer_sort_lookup(struct peer *peer); |
1769 | ||
3dc339cd DA |
1770 | extern bool peer_active(struct peer *); |
1771 | extern bool peer_active_nego(struct peer *); | |
d62a17ae | 1772 | extern void bgp_recalculate_all_bestpaths(struct bgp *bgp); |
a80beece | 1773 | extern struct peer *peer_create(union sockunion *, const char *, struct bgp *, |
d62a17ae | 1774 | as_t, as_t, int, afi_t, safi_t, |
1775 | struct peer_group *); | |
1776 | extern struct peer *peer_create_accept(struct bgp *); | |
1777 | extern void peer_xfer_config(struct peer *dst, struct peer *src); | |
94d4c685 DS |
1778 | extern char *peer_uptime(time_t uptime2, char *buf, size_t len, bool use_json, |
1779 | json_object *json); | |
856ca177 | 1780 | |
d62a17ae | 1781 | extern int bgp_config_write(struct vty *); |
6b0655a2 | 1782 | |
c2d020ad DS |
1783 | extern void bgp_master_init(struct thread_master *master, |
1784 | const int buffer_size); | |
718e3744 | 1785 | |
f533be73 | 1786 | extern void bgp_init(unsigned short instance); |
419dfe6a | 1787 | extern void bgp_pthreads_run(void); |
2d4ee774 | 1788 | extern void bgp_pthreads_finish(void); |
d62a17ae | 1789 | extern void bgp_route_map_init(void); |
1790 | extern void bgp_session_reset(struct peer *); | |
718e3744 | 1791 | |
d62a17ae | 1792 | extern int bgp_option_set(int); |
1793 | extern int bgp_option_unset(int); | |
1794 | extern int bgp_option_check(int); | |
718e3744 | 1795 | |
d62a17ae | 1796 | extern int bgp_get(struct bgp **, as_t *, const char *, enum bgp_instance_type); |
1797 | extern void bgp_instance_up(struct bgp *); | |
1798 | extern void bgp_instance_down(struct bgp *); | |
1799 | extern int bgp_delete(struct bgp *); | |
718e3744 | 1800 | |
e5619c28 PG |
1801 | extern int bgp_handle_socket(struct bgp *bgp, struct vrf *vrf, |
1802 | vrf_id_t old_vrf_id, bool create); | |
1803 | ||
d62a17ae | 1804 | extern void bgp_router_id_zebra_bump(vrf_id_t, const struct prefix *); |
3dc339cd | 1805 | extern void bgp_router_id_static_set(struct bgp *, struct in_addr); |
718e3744 | 1806 | |
d62a17ae | 1807 | extern int bgp_cluster_id_set(struct bgp *, struct in_addr *); |
1808 | extern int bgp_cluster_id_unset(struct bgp *); | |
718e3744 | 1809 | |
d62a17ae | 1810 | extern int bgp_confederation_id_set(struct bgp *, as_t); |
1811 | extern int bgp_confederation_id_unset(struct bgp *); | |
3dc339cd | 1812 | extern bool bgp_confederation_peers_check(struct bgp *, as_t); |
718e3744 | 1813 | |
d62a17ae | 1814 | extern int bgp_confederation_peers_add(struct bgp *, as_t); |
1815 | extern int bgp_confederation_peers_remove(struct bgp *, as_t); | |
718e3744 | 1816 | |
3dc339cd DA |
1817 | extern void bgp_timers_set(struct bgp *, uint32_t keepalive, uint32_t holdtime, |
1818 | uint32_t connect_retry); | |
1819 | extern void bgp_timers_unset(struct bgp *); | |
718e3744 | 1820 | |
d7c0a89a | 1821 | extern int bgp_default_local_preference_set(struct bgp *, uint32_t); |
d62a17ae | 1822 | extern int bgp_default_local_preference_unset(struct bgp *); |
718e3744 | 1823 | |
d7c0a89a | 1824 | extern int bgp_default_subgroup_pkt_queue_max_set(struct bgp *bgp, uint32_t); |
d62a17ae | 1825 | extern int bgp_default_subgroup_pkt_queue_max_unset(struct bgp *bgp); |
3f9c7369 | 1826 | |
d62a17ae | 1827 | extern int bgp_listen_limit_set(struct bgp *, int); |
1828 | extern int bgp_listen_limit_unset(struct bgp *); | |
f14e6fdb | 1829 | |
3dc339cd DA |
1830 | extern bool bgp_update_delay_active(struct bgp *); |
1831 | extern bool bgp_update_delay_configured(struct bgp *); | |
318cac96 | 1832 | extern int bgp_afi_safi_peer_exists(struct bgp *bgp, afi_t afi, safi_t safi); |
d62a17ae | 1833 | extern void peer_as_change(struct peer *, as_t, int); |
1834 | extern int peer_remote_as(struct bgp *, union sockunion *, const char *, as_t *, | |
1835 | int, afi_t, safi_t); | |
1836 | extern int peer_group_remote_as(struct bgp *, const char *, as_t *, int); | |
1837 | extern int peer_delete(struct peer *peer); | |
3dc339cd | 1838 | extern void peer_notify_unconfig(struct peer *peer); |
d62a17ae | 1839 | extern int peer_group_delete(struct peer_group *); |
1840 | extern int peer_group_remote_as_delete(struct peer_group *); | |
f14e6fdb | 1841 | extern int peer_group_listen_range_add(struct peer_group *, struct prefix *); |
3dc339cd | 1842 | extern void peer_group_notify_unconfig(struct peer_group *group); |
718e3744 | 1843 | |
d62a17ae | 1844 | extern int peer_activate(struct peer *, afi_t, safi_t); |
1845 | extern int peer_deactivate(struct peer *, afi_t, safi_t); | |
718e3744 | 1846 | |
d62a17ae | 1847 | extern int peer_group_bind(struct bgp *, union sockunion *, struct peer *, |
1848 | struct peer_group *, as_t *); | |
718e3744 | 1849 | |
d7c0a89a QY |
1850 | extern int peer_flag_set(struct peer *, uint32_t); |
1851 | extern int peer_flag_unset(struct peer *, uint32_t); | |
9fb964de | 1852 | extern void peer_flag_inherit(struct peer *peer, uint32_t flag); |
718e3744 | 1853 | |
d7c0a89a QY |
1854 | extern int peer_af_flag_set(struct peer *, afi_t, safi_t, uint32_t); |
1855 | extern int peer_af_flag_unset(struct peer *, afi_t, safi_t, uint32_t); | |
1856 | extern int peer_af_flag_check(struct peer *, afi_t, safi_t, uint32_t); | |
cf9ac8bf PM |
1857 | extern void peer_af_flag_inherit(struct peer *peer, afi_t afi, safi_t safi, |
1858 | uint32_t flag); | |
dcc68b5e MS |
1859 | extern void peer_change_action(struct peer *peer, afi_t afi, safi_t safi, |
1860 | enum peer_change_type type); | |
718e3744 | 1861 | |
d62a17ae | 1862 | extern int peer_ebgp_multihop_set(struct peer *, int); |
1863 | extern int peer_ebgp_multihop_unset(struct peer *); | |
1864 | extern int is_ebgp_multihop_configured(struct peer *peer); | |
718e3744 | 1865 | |
3dc339cd DA |
1866 | extern void peer_description_set(struct peer *, const char *); |
1867 | extern void peer_description_unset(struct peer *); | |
718e3744 | 1868 | |
d62a17ae | 1869 | extern int peer_update_source_if_set(struct peer *, const char *); |
1870 | extern int peer_update_source_addr_set(struct peer *, const union sockunion *); | |
1871 | extern int peer_update_source_unset(struct peer *); | |
718e3744 | 1872 | |
1de27621 DA |
1873 | extern int peer_default_originate_set(struct peer *peer, afi_t afi, safi_t safi, |
1874 | const char *rmap, | |
1875 | struct route_map *route_map); | |
d62a17ae | 1876 | extern int peer_default_originate_unset(struct peer *, afi_t, safi_t); |
718e3744 | 1877 | |
3dc339cd DA |
1878 | extern void peer_port_set(struct peer *, uint16_t); |
1879 | extern void peer_port_unset(struct peer *); | |
718e3744 | 1880 | |
d7c0a89a | 1881 | extern int peer_weight_set(struct peer *, afi_t, safi_t, uint16_t); |
d62a17ae | 1882 | extern int peer_weight_unset(struct peer *, afi_t, safi_t); |
718e3744 | 1883 | |
d7c0a89a QY |
1884 | extern int peer_timers_set(struct peer *, uint32_t keepalive, |
1885 | uint32_t holdtime); | |
d62a17ae | 1886 | extern int peer_timers_unset(struct peer *); |
718e3744 | 1887 | |
d7c0a89a | 1888 | extern int peer_timers_connect_set(struct peer *, uint32_t); |
d62a17ae | 1889 | extern int peer_timers_connect_unset(struct peer *); |
718e3744 | 1890 | |
d7c0a89a | 1891 | extern int peer_advertise_interval_set(struct peer *, uint32_t); |
d62a17ae | 1892 | extern int peer_advertise_interval_unset(struct peer *); |
718e3744 | 1893 | |
d62a17ae | 1894 | extern void peer_interface_set(struct peer *, const char *); |
1895 | extern void peer_interface_unset(struct peer *); | |
718e3744 | 1896 | |
d62a17ae | 1897 | extern int peer_distribute_set(struct peer *, afi_t, safi_t, int, const char *); |
1898 | extern int peer_distribute_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1899 | |
d62a17ae | 1900 | extern int peer_allowas_in_set(struct peer *, afi_t, safi_t, int, int); |
1901 | extern int peer_allowas_in_unset(struct peer *, afi_t, safi_t); | |
718e3744 | 1902 | |
d62a17ae | 1903 | extern int peer_local_as_set(struct peer *, as_t, int, int); |
1904 | extern int peer_local_as_unset(struct peer *); | |
718e3744 | 1905 | |
d62a17ae | 1906 | extern int peer_prefix_list_set(struct peer *, afi_t, safi_t, int, |
1907 | const char *); | |
1908 | extern int peer_prefix_list_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1909 | |
d62a17ae | 1910 | extern int peer_aslist_set(struct peer *, afi_t, safi_t, int, const char *); |
1911 | extern int peer_aslist_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1912 | |
1de27621 DA |
1913 | extern int peer_route_map_set(struct peer *peer, afi_t afi, safi_t safi, int, |
1914 | const char *name, struct route_map *route_map); | |
d62a17ae | 1915 | extern int peer_route_map_unset(struct peer *, afi_t, safi_t, int); |
718e3744 | 1916 | |
1de27621 DA |
1917 | extern int peer_unsuppress_map_set(struct peer *peer, afi_t afi, safi_t safi, |
1918 | const char *name, | |
1919 | struct route_map *route_map); | |
0df7c91f | 1920 | |
d62a17ae | 1921 | extern int peer_password_set(struct peer *, const char *); |
1922 | extern int peer_password_unset(struct peer *); | |
0df7c91f | 1923 | |
d62a17ae | 1924 | extern int peer_unsuppress_map_unset(struct peer *, afi_t, safi_t); |
718e3744 | 1925 | |
d7c0a89a | 1926 | extern int peer_maximum_prefix_set(struct peer *, afi_t, safi_t, uint32_t, |
9cbd06e0 | 1927 | uint8_t, int, uint16_t, bool force); |
d62a17ae | 1928 | extern int peer_maximum_prefix_unset(struct peer *, afi_t, safi_t); |
718e3744 | 1929 | |
d62a17ae | 1930 | extern int peer_clear(struct peer *, struct listnode **); |
1931 | extern int peer_clear_soft(struct peer *, afi_t, safi_t, enum bgp_clear_type); | |
93406d87 | 1932 | |
d62a17ae | 1933 | extern int peer_ttl_security_hops_set(struct peer *, int); |
1934 | extern int peer_ttl_security_hops_unset(struct peer *); | |
fa411a21 | 1935 | |
3dc339cd DA |
1936 | extern void peer_tx_shutdown_message_set(struct peer *, const char *msg); |
1937 | extern void peer_tx_shutdown_message_unset(struct peer *); | |
73d70fa6 | 1938 | |
d62a17ae | 1939 | extern int bgp_route_map_update_timer(struct thread *thread); |
518f0eb1 | 1940 | extern void bgp_route_map_terminate(void); |
16286195 | 1941 | |
d62a17ae | 1942 | extern int peer_cmp(struct peer *p1, struct peer *p2); |
3f9c7369 | 1943 | |
5c525538 | 1944 | extern int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi, iana_safi_t pkt_safi, |
d62a17ae | 1945 | afi_t *afi, safi_t *safi); |
1946 | extern int bgp_map_afi_safi_int2iana(afi_t afi, safi_t safi, | |
a4d82a8a PZ |
1947 | iana_afi_t *pkt_afi, |
1948 | iana_safi_t *pkt_safi); | |
9cabb64b | 1949 | |
d62a17ae | 1950 | extern struct peer_af *peer_af_create(struct peer *, afi_t, safi_t); |
1951 | extern struct peer_af *peer_af_find(struct peer *, afi_t, safi_t); | |
1952 | extern int peer_af_delete(struct peer *, afi_t, safi_t); | |
3f9c7369 | 1953 | |
8389c83a | 1954 | extern void bgp_shutdown_enable(struct bgp *bgp, char *msg); |
9cf59432 DS |
1955 | extern void bgp_shutdown_disable(struct bgp *bgp); |
1956 | ||
ffd0c037 | 1957 | extern void bgp_close(void); |
92375c91 | 1958 | extern void bgp_free(struct bgp *); |
b0965c44 | 1959 | void bgp_gr_apply_running_config(void); |
1960 | ||
1961 | /* BGP GR */ | |
b0965c44 | 1962 | int bgp_global_gr_init(struct bgp *bgp); |
1963 | int bgp_peer_gr_init(struct peer *peer); | |
92375c91 | 1964 | |
2d3dd828 | 1965 | |
36235319 QY |
1966 | #define BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(_bgp, _peer_list) \ |
1967 | do { \ | |
1968 | struct peer *peer_loop; \ | |
1969 | bool gr_router_detected = false; \ | |
1970 | struct listnode *node = {0}; \ | |
1971 | for (ALL_LIST_ELEMENTS_RO(_peer_list, node, peer_loop)) { \ | |
1972 | if (CHECK_FLAG(peer_loop->flags, \ | |
1973 | PEER_FLAG_GRACEFUL_RESTART)) \ | |
1974 | gr_router_detected = true; \ | |
1975 | } \ | |
1976 | if (gr_router_detected \ | |
1977 | && _bgp->present_zebra_gr_state == ZEBRA_GR_DISABLE) { \ | |
1978 | bgp_zebra_send_capabilities(_bgp, false); \ | |
1979 | } else if (!gr_router_detected \ | |
1980 | && _bgp->present_zebra_gr_state \ | |
1981 | == ZEBRA_GR_ENABLE) { \ | |
1982 | bgp_zebra_send_capabilities(_bgp, true); \ | |
1983 | } \ | |
1984 | } while (0) | |
2d3dd828 | 1985 | |
92375c91 JB |
1986 | static inline struct bgp *bgp_lock(struct bgp *bgp) |
1987 | { | |
1988 | bgp->lock++; | |
1989 | return bgp; | |
1990 | } | |
1991 | ||
1992 | static inline void bgp_unlock(struct bgp *bgp) | |
1993 | { | |
1994 | assert(bgp->lock > 0); | |
1995 | if (--bgp->lock == 0) | |
1996 | bgp_free(bgp); | |
1997 | } | |
ffd0c037 | 1998 | |
d62a17ae | 1999 | static inline int afindex(afi_t afi, safi_t safi) |
3f9c7369 | 2000 | { |
d62a17ae | 2001 | switch (afi) { |
2002 | case AFI_IP: | |
2003 | switch (safi) { | |
2004 | case SAFI_UNICAST: | |
2005 | return BGP_AF_IPV4_UNICAST; | |
d62a17ae | 2006 | case SAFI_MULTICAST: |
2007 | return BGP_AF_IPV4_MULTICAST; | |
d62a17ae | 2008 | case SAFI_LABELED_UNICAST: |
2009 | return BGP_AF_IPV4_LBL_UNICAST; | |
d62a17ae | 2010 | case SAFI_MPLS_VPN: |
2011 | return BGP_AF_IPV4_VPN; | |
d62a17ae | 2012 | case SAFI_ENCAP: |
2013 | return BGP_AF_IPV4_ENCAP; | |
7c40bf39 | 2014 | case SAFI_FLOWSPEC: |
2015 | return BGP_AF_IPV4_FLOWSPEC; | |
d62a17ae | 2016 | default: |
2017 | return BGP_AF_MAX; | |
d62a17ae | 2018 | } |
2019 | break; | |
2020 | case AFI_IP6: | |
2021 | switch (safi) { | |
2022 | case SAFI_UNICAST: | |
2023 | return BGP_AF_IPV6_UNICAST; | |
d62a17ae | 2024 | case SAFI_MULTICAST: |
2025 | return BGP_AF_IPV6_MULTICAST; | |
d62a17ae | 2026 | case SAFI_LABELED_UNICAST: |
2027 | return BGP_AF_IPV6_LBL_UNICAST; | |
d62a17ae | 2028 | case SAFI_MPLS_VPN: |
2029 | return BGP_AF_IPV6_VPN; | |
d62a17ae | 2030 | case SAFI_ENCAP: |
2031 | return BGP_AF_IPV6_ENCAP; | |
7c40bf39 | 2032 | case SAFI_FLOWSPEC: |
2033 | return BGP_AF_IPV6_FLOWSPEC; | |
d62a17ae | 2034 | default: |
2035 | return BGP_AF_MAX; | |
d62a17ae | 2036 | } |
2037 | break; | |
2038 | case AFI_L2VPN: | |
2039 | switch (safi) { | |
2040 | case SAFI_EVPN: | |
2041 | return BGP_AF_L2VPN_EVPN; | |
d62a17ae | 2042 | default: |
2043 | return BGP_AF_MAX; | |
d62a17ae | 2044 | } |
3f9c7369 | 2045 | default: |
d62a17ae | 2046 | return BGP_AF_MAX; |
3f9c7369 | 2047 | } |
3f9c7369 DS |
2048 | } |
2049 | ||
c8560b44 | 2050 | /* If the peer is not a peer-group but is bound to a peer-group return 1 */ |
d62a17ae | 2051 | static inline int peer_group_active(struct peer *peer) |
3f9c7369 | 2052 | { |
d62a17ae | 2053 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) && peer->group) |
2054 | return 1; | |
2055 | return 0; | |
3f9c7369 DS |
2056 | } |
2057 | ||
2058 | /* If peer is negotiated at least one address family return 1. */ | |
d62a17ae | 2059 | static inline int peer_afi_active_nego(const struct peer *peer, afi_t afi) |
3f9c7369 | 2060 | { |
d62a17ae | 2061 | if (peer->afc_nego[afi][SAFI_UNICAST] |
2062 | || peer->afc_nego[afi][SAFI_MULTICAST] | |
2063 | || peer->afc_nego[afi][SAFI_LABELED_UNICAST] | |
2064 | || peer->afc_nego[afi][SAFI_MPLS_VPN] | |
2065 | || peer->afc_nego[afi][SAFI_ENCAP] | |
7c40bf39 | 2066 | || peer->afc_nego[afi][SAFI_FLOWSPEC] |
d62a17ae | 2067 | || peer->afc_nego[afi][SAFI_EVPN]) |
2068 | return 1; | |
2069 | return 0; | |
3f9c7369 DS |
2070 | } |
2071 | ||
f14e6fdb | 2072 | /* If at least one address family activated for group, return 1. */ |
d62a17ae | 2073 | static inline int peer_group_af_configured(struct peer_group *group) |
f14e6fdb | 2074 | { |
d62a17ae | 2075 | struct peer *peer = group->conf; |
2076 | ||
2077 | if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST] | |
2078 | || peer->afc[AFI_IP][SAFI_LABELED_UNICAST] | |
7c40bf39 | 2079 | || peer->afc[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 2080 | || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP] |
2081 | || peer->afc[AFI_IP6][SAFI_UNICAST] | |
2082 | || peer->afc[AFI_IP6][SAFI_MULTICAST] | |
2083 | || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST] | |
2084 | || peer->afc[AFI_IP6][SAFI_MPLS_VPN] | |
ba0fcaf6 | 2085 | || peer->afc[AFI_IP6][SAFI_ENCAP] |
7c40bf39 | 2086 | || peer->afc[AFI_IP6][SAFI_FLOWSPEC] |
ba0fcaf6 | 2087 | || peer->afc[AFI_L2VPN][SAFI_EVPN]) |
d62a17ae | 2088 | return 1; |
2089 | return 0; | |
f14e6fdb DS |
2090 | } |
2091 | ||
d62a17ae | 2092 | static inline char *timestamp_string(time_t ts) |
3f9c7369 | 2093 | { |
d62a17ae | 2094 | time_t tbuf; |
2095 | tbuf = time(NULL) - (bgp_clock() - ts); | |
2096 | return ctime(&tbuf); | |
3f9c7369 DS |
2097 | } |
2098 | ||
d62a17ae | 2099 | static inline int peer_established(struct peer *peer) |
3f9c7369 | 2100 | { |
d62a17ae | 2101 | if (peer->status == Established) |
2102 | return 1; | |
2103 | return 0; | |
3f9c7369 DS |
2104 | } |
2105 | ||
d62a17ae | 2106 | static inline int peer_dynamic_neighbor(struct peer *peer) |
f14e6fdb | 2107 | { |
d62a17ae | 2108 | return (CHECK_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR)) ? 1 : 0; |
f14e6fdb DS |
2109 | } |
2110 | ||
d62a17ae | 2111 | static inline int peer_cap_enhe(struct peer *peer, afi_t afi, safi_t safi) |
8a92a8a0 | 2112 | { |
d62a17ae | 2113 | return (CHECK_FLAG(peer->af_cap[afi][safi], PEER_CAP_ENHE_AF_NEGO)); |
8a92a8a0 DS |
2114 | } |
2115 | ||
d1be1f08 | 2116 | /* Lookup VRF for BGP instance based on its type. */ |
d62a17ae | 2117 | static inline struct vrf *bgp_vrf_lookup_by_instance_type(struct bgp *bgp) |
d1be1f08 | 2118 | { |
d62a17ae | 2119 | struct vrf *vrf; |
d1be1f08 | 2120 | |
d62a17ae | 2121 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) |
2122 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
2123 | else if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
2124 | vrf = vrf_lookup_by_name(bgp->name); | |
2125 | else | |
2126 | vrf = NULL; | |
d1be1f08 | 2127 | |
d62a17ae | 2128 | return vrf; |
d1be1f08 | 2129 | } |
2130 | ||
2131 | /* Link BGP instance to VRF. */ | |
d62a17ae | 2132 | static inline void bgp_vrf_link(struct bgp *bgp, struct vrf *vrf) |
d1be1f08 | 2133 | { |
d62a17ae | 2134 | bgp->vrf_id = vrf->vrf_id; |
92375c91 JB |
2135 | if (vrf->info != (void *)bgp) |
2136 | vrf->info = (void *)bgp_lock(bgp); | |
d1be1f08 | 2137 | } |
2138 | ||
2139 | /* Unlink BGP instance from VRF. */ | |
d62a17ae | 2140 | static inline void bgp_vrf_unlink(struct bgp *bgp, struct vrf *vrf) |
d1be1f08 | 2141 | { |
d62a17ae | 2142 | if (vrf->info == (void *)bgp) { |
2143 | vrf->info = NULL; | |
2144 | bgp_unlock(bgp); | |
2145 | } | |
2146 | bgp->vrf_id = VRF_UNKNOWN; | |
d1be1f08 | 2147 | } |
2148 | ||
401d56cc | 2149 | extern void bgp_unset_redist_vrf_bitmaps(struct bgp *, vrf_id_t); |
65efcfce LB |
2150 | |
2151 | /* For benefit of rfapi */ | |
d62a17ae | 2152 | extern struct peer *peer_new(struct bgp *bgp); |
dcc1615e DD |
2153 | |
2154 | extern struct peer *peer_lookup_in_view(struct vty *vty, struct bgp *bgp, | |
2155 | const char *ip_str, bool use_json); | |
2156 | ||
7d8d0eab MKS |
2157 | /* Hooks */ |
2158 | DECLARE_HOOK(peer_status_changed, (struct peer * peer), (peer)) | |
d7b3cda6 | 2159 | void peer_nsf_stop(struct peer *peer); |
7d8d0eab | 2160 | |
00d252cb | 2161 | #endif /* _QUAGGA_BGPD_H */ |