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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" |
f663c581 | 45 | #include "bgp_nexthop.h" |
718e3744 | 46 | |
04b6bdc0 | 47 | #define BGP_MAX_HOSTNAME 64 /* Linux max, is larger than most other sys */ |
40520c36 | 48 | #define BGP_PEER_MAX_HASH_SIZE 16384 |
04b6bdc0 | 49 | |
5c81b96a | 50 | /* Default interval for IPv6 RAs when triggered by BGP unnumbered neighbor. */ |
51 | #define BGP_UNNUM_DEFAULT_RA_INTERVAL 10 | |
52 | ||
3f9c7369 DS |
53 | struct update_subgroup; |
54 | struct bpacket; | |
4762c213 | 55 | struct bgp_pbr_config; |
3f9c7369 | 56 | |
0299c004 DS |
57 | /* |
58 | * Allow the neighbor XXXX remote-as to take internal or external | |
d62a17ae | 59 | * AS_SPECIFIED is zero to auto-inherit original non-feature/enhancement |
60 | * behavior | |
0299c004 DS |
61 | * in the system. |
62 | */ | |
d62a17ae | 63 | enum { AS_UNSPECIFIED = 0, |
64 | AS_SPECIFIED, | |
65 | AS_INTERNAL, | |
66 | AS_EXTERNAL, | |
0299c004 DS |
67 | }; |
68 | ||
2d3dd828 | 69 | /* Zebra Gracaful Restart states */ |
70 | enum zebra_gr_mode { | |
71 | ZEBRA_GR_DISABLE = 0, | |
72 | ZEBRA_GR_ENABLE | |
73 | }; | |
74 | ||
718e3744 | 75 | /* Typedef BGP specific types. */ |
d7c0a89a QY |
76 | typedef uint32_t as_t; |
77 | typedef uint16_t as16_t; /* we may still encounter 16 Bit asnums */ | |
78 | typedef uint16_t bgp_size_t; | |
718e3744 | 79 | |
d62a17ae | 80 | #define max(a, b) \ |
81 | ({ \ | |
82 | __typeof__(a) _a = (a); \ | |
83 | __typeof__(b) _b = (b); \ | |
84 | _a > _b ? _a : _b; \ | |
85 | }) | |
86 | ||
87 | enum bgp_af_index { | |
88 | BGP_AF_START, | |
89 | BGP_AF_IPV4_UNICAST = BGP_AF_START, | |
90 | BGP_AF_IPV4_MULTICAST, | |
91 | BGP_AF_IPV4_VPN, | |
92 | BGP_AF_IPV6_UNICAST, | |
93 | BGP_AF_IPV6_MULTICAST, | |
94 | BGP_AF_IPV6_VPN, | |
95 | BGP_AF_IPV4_ENCAP, | |
96 | BGP_AF_IPV6_ENCAP, | |
97 | BGP_AF_L2VPN_EVPN, | |
98 | BGP_AF_IPV4_LBL_UNICAST, | |
99 | BGP_AF_IPV6_LBL_UNICAST, | |
7c40bf39 | 100 | BGP_AF_IPV4_FLOWSPEC, |
101 | BGP_AF_IPV6_FLOWSPEC, | |
d62a17ae | 102 | BGP_AF_MAX |
3f9c7369 DS |
103 | }; |
104 | ||
d62a17ae | 105 | #define AF_FOREACH(af) for ((af) = BGP_AF_START; (af) < BGP_AF_MAX; (af)++) |
3f9c7369 | 106 | |
d1927ebe AS |
107 | #define FOREACH_SAFI(safi) \ |
108 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
3f9c7369 | 109 | |
1ac267a2 DL |
110 | extern struct frr_pthread *bgp_pth_io; |
111 | extern struct frr_pthread *bgp_pth_ka; | |
112 | ||
718e3744 | 113 | /* BGP master for system wide configurations and variables. */ |
d62a17ae | 114 | struct bgp_master { |
115 | /* BGP instance list. */ | |
116 | struct list *bgp; | |
117 | ||
118 | /* BGP thread master. */ | |
119 | struct thread_master *master; | |
718e3744 | 120 | |
d62a17ae | 121 | /* Listening sockets */ |
122 | struct list *listen_sockets; | |
718e3744 | 123 | |
d62a17ae | 124 | /* BGP port number. */ |
d7c0a89a | 125 | uint16_t port; |
3a02d1f7 | 126 | |
d62a17ae | 127 | /* Listener address */ |
128 | char *address; | |
718e3744 | 129 | |
48ecf8f5 DS |
130 | /* The Mac table */ |
131 | struct hash *self_mac_hash; | |
132 | ||
d62a17ae | 133 | /* BGP start time. */ |
134 | time_t start_time; | |
135 | ||
136 | /* Various BGP global configuration. */ | |
d7c0a89a | 137 | uint8_t options; |
718e3744 | 138 | #define BGP_OPT_NO_FIB (1 << 0) |
d8a9922d DS |
139 | #define BGP_OPT_NO_LISTEN (1 << 1) |
140 | #define BGP_OPT_NO_ZEBRA (1 << 2) | |
3f9c7369 | 141 | |
d62a17ae | 142 | uint64_t updgrp_idspace; |
143 | uint64_t subgrp_idspace; | |
5fe9f963 | 144 | |
d62a17ae | 145 | /* timer to dampen route map changes */ |
146 | struct thread *t_rmap_update; /* Handle route map updates */ | |
d7c0a89a | 147 | uint32_t rmap_update_timer; /* Route map update timer */ |
5fe9f963 | 148 | #define RMAP_DEFAULT_UPDATE_TIMER 5 /* disabled by default */ |
19df7279 | 149 | |
e9eb5f63 | 150 | /* Id space for automatic RD derivation for an EVI/VRF */ |
151 | bitfield_t rd_idspace; | |
152 | ||
955bfd98 PZ |
153 | /* dynamic mpls label allocation pool */ |
154 | struct labelpool labelpool; | |
155 | ||
e2f3a930 T |
156 | /* BGP-EVPN VRF ID. Defaults to default VRF (if any) */ |
157 | struct bgp* bgp_evpn; | |
158 | ||
c2d020ad DS |
159 | /* How big should we set the socket buffer size */ |
160 | uint32_t socket_buffer; | |
161 | ||
c44ab6f1 AK |
162 | /* EVPN multihoming */ |
163 | struct bgp_evpn_mh_info *mh_info; | |
164 | ||
d70583f7 D |
165 | /* global update-delay timer values */ |
166 | uint16_t v_update_delay; | |
167 | uint16_t v_establish_wait; | |
168 | ||
05bd726c | 169 | uint32_t flags; |
170 | #define BM_FLAG_GRACEFUL_SHUTDOWN (1 << 0) | |
171 | ||
97b4a0ec | 172 | bool terminating; /* global flag that sigint terminate seen */ |
d62a17ae | 173 | QOBJ_FIELDS |
718e3744 | 174 | }; |
19df7279 | 175 | DECLARE_QOBJ_TYPE(bgp_master) |
718e3744 | 176 | |
73ac8160 | 177 | /* BGP route-map structure. */ |
d62a17ae | 178 | struct bgp_rmap { |
179 | char *name; | |
180 | struct route_map *map; | |
73ac8160 DS |
181 | }; |
182 | ||
d62a17ae | 183 | struct bgp_redist { |
d7c0a89a | 184 | unsigned short instance; |
7c8ff89e | 185 | |
d62a17ae | 186 | /* BGP redistribute metric configuration. */ |
d7c0a89a QY |
187 | uint8_t redist_metric_flag; |
188 | uint32_t redist_metric; | |
7c8ff89e | 189 | |
d62a17ae | 190 | /* BGP redistribute route-map. */ |
191 | struct bgp_rmap rmap; | |
7c8ff89e DS |
192 | }; |
193 | ||
ddb5b488 PZ |
194 | typedef enum { |
195 | BGP_VPN_POLICY_DIR_FROMVPN = 0, | |
196 | BGP_VPN_POLICY_DIR_TOVPN = 1, | |
197 | BGP_VPN_POLICY_DIR_MAX = 2 | |
198 | } vpn_policy_direction_t; | |
199 | ||
e70e9f8e PZ |
200 | struct vpn_policy { |
201 | struct bgp *bgp; /* parent */ | |
202 | afi_t afi; | |
203 | struct ecommunity *rtlist[BGP_VPN_POLICY_DIR_MAX]; | |
204 | struct ecommunity *import_redirect_rtlist; | |
205 | char *rmap_name[BGP_VPN_POLICY_DIR_MAX]; | |
206 | struct route_map *rmap[BGP_VPN_POLICY_DIR_MAX]; | |
207 | ||
208 | /* should be mpls_label_t? */ | |
209 | uint32_t tovpn_label; /* may be MPLS_LABEL_NONE */ | |
210 | uint32_t tovpn_zebra_vrf_label_last_sent; | |
211 | struct prefix_rd tovpn_rd; | |
212 | struct prefix tovpn_nexthop; /* unset => set to 0 */ | |
213 | uint32_t flags; | |
214 | #define BGP_VPN_POLICY_TOVPN_LABEL_AUTO (1 << 0) | |
215 | #define BGP_VPN_POLICY_TOVPN_RD_SET (1 << 1) | |
216 | #define BGP_VPN_POLICY_TOVPN_NEXTHOP_SET (1 << 2) | |
12a844a5 | 217 | |
1d4e8b0d DS |
218 | /* |
219 | * If we are importing another vrf into us keep a list of | |
220 | * vrf names that are being imported into us. | |
221 | */ | |
12a844a5 | 222 | struct list *import_vrf; |
1d4e8b0d DS |
223 | |
224 | /* | |
225 | * if we are being exported to another vrf keep a list of | |
226 | * vrf names that we are being exported to. | |
227 | */ | |
12a844a5 | 228 | struct list *export_vrf; |
e70e9f8e PZ |
229 | }; |
230 | ||
ad4cbda1 | 231 | /* |
232 | * Type of 'struct bgp'. | |
233 | * - Default: The default instance | |
234 | * - VRF: A specific (non-default) VRF | |
235 | * - View: An instance used for route exchange | |
236 | * The "default" instance is treated separately to simplify the code. Note | |
237 | * that if deployed in a Multi-VRF environment, it may not exist. | |
238 | */ | |
d62a17ae | 239 | enum bgp_instance_type { |
240 | BGP_INSTANCE_TYPE_DEFAULT, | |
241 | BGP_INSTANCE_TYPE_VRF, | |
242 | BGP_INSTANCE_TYPE_VIEW | |
ad4cbda1 | 243 | }; |
244 | ||
36235319 | 245 | #define BGP_SEND_EOR(bgp, afi, safi) \ |
892fedb6 | 246 | (!CHECK_FLAG(bgp->flags, BGP_FLAG_GR_DISABLE_EOR) \ |
36235319 QY |
247 | && ((bgp->gr_info[afi][safi].t_select_deferral == NULL) \ |
248 | || (bgp->gr_info[afi][safi].eor_required \ | |
249 | == bgp->gr_info[afi][safi].eor_received))) | |
b0965c44 | 250 | |
251 | /* BGP GR Global ds */ | |
252 | ||
2ba1fe69 | 253 | #define BGP_GLOBAL_GR_MODE 4 |
254 | #define BGP_GLOBAL_GR_EVENT_CMD 4 | |
b0965c44 | 255 | |
b0965c44 | 256 | /* Graceful restart selection deferral timer info */ |
257 | struct graceful_restart_info { | |
258 | /* Count of EOR message expected */ | |
259 | uint32_t eor_required; | |
260 | /* Count of EOR received */ | |
261 | uint32_t eor_received; | |
262 | /* Deferral Timer */ | |
263 | struct thread *t_select_deferral; | |
26742171 DS |
264 | /* Routes Deferred */ |
265 | uint32_t gr_deferred; | |
b0965c44 | 266 | /* Best route select */ |
267 | struct thread *t_route_select; | |
2d3dd828 | 268 | /* AFI, SAFI enabled */ |
269 | bool af_enabled[AFI_MAX][SAFI_MAX]; | |
270 | /* Route update completed */ | |
271 | bool route_sync[AFI_MAX][SAFI_MAX]; | |
b0965c44 | 272 | }; |
273 | ||
b0965c44 | 274 | enum global_mode { |
275 | GLOBAL_HELPER = 0, /* This is the default mode */ | |
276 | GLOBAL_GR, | |
277 | GLOBAL_DISABLE, | |
278 | GLOBAL_INVALID | |
279 | }; | |
280 | ||
281 | enum global_gr_command { | |
282 | GLOBAL_GR_CMD = 0, | |
283 | NO_GLOBAL_GR_CMD, | |
284 | GLOBAL_DISABLE_CMD, | |
285 | NO_GLOBAL_DISABLE_CMD | |
286 | }; | |
287 | ||
288 | #define BGP_GR_SUCCESS 0 | |
289 | #define BGP_GR_FAILURE 1 | |
290 | ||
f7e1c681 | 291 | /* Handling of BGP link bandwidth (LB) on receiver - whether and how to |
292 | * do weighted ECMP. Note: This applies after multipath computation. | |
293 | */ | |
294 | enum bgp_link_bw_handling { | |
295 | /* Do ECMP if some paths don't have LB - default */ | |
296 | BGP_LINK_BW_ECMP, | |
297 | /* Completely ignore LB, just do regular ECMP */ | |
298 | BGP_LINK_BW_IGNORE_BW, | |
299 | /* Skip paths without LB, do wECMP on others */ | |
300 | BGP_LINK_BW_SKIP_MISSING, | |
301 | /* Do wECMP with default weight for paths not having LB */ | |
302 | BGP_LINK_BW_DEFWT_4_MISSING | |
303 | }; | |
304 | ||
c589d847 AK |
305 | RB_HEAD(bgp_es_vrf_rb_head, bgp_evpn_es_vrf); |
306 | RB_PROTOTYPE(bgp_es_vrf_rb_head, bgp_evpn_es_vrf, rb_node, bgp_es_vrf_rb_cmp); | |
307 | ||
718e3744 | 308 | /* BGP instance structure. */ |
d62a17ae | 309 | struct bgp { |
310 | /* AS number of this BGP instance. */ | |
311 | as_t as; | |
312 | ||
313 | /* Name of this BGP instance. */ | |
314 | char *name; | |
3572fb26 | 315 | char *name_pretty; /* printable "VRF|VIEW name|default" */ |
d62a17ae | 316 | |
317 | /* Type of instance and VRF id. */ | |
318 | enum bgp_instance_type inst_type; | |
319 | vrf_id_t vrf_id; | |
320 | ||
321 | /* Reference count to allow peer_delete to finish after bgp_delete */ | |
322 | int lock; | |
323 | ||
324 | /* Self peer. */ | |
325 | struct peer *peer_self; | |
326 | ||
327 | /* BGP peer. */ | |
328 | struct list *peer; | |
329 | struct hash *peerhash; | |
330 | ||
331 | /* BGP peer group. */ | |
332 | struct list *group; | |
333 | ||
334 | /* The maximum number of BGP dynamic neighbors that can be created */ | |
335 | int dynamic_neighbors_limit; | |
336 | ||
337 | /* The current number of BGP dynamic neighbors */ | |
338 | int dynamic_neighbors_count; | |
339 | ||
340 | struct hash *update_groups[BGP_AF_MAX]; | |
341 | ||
342 | /* | |
343 | * Global statistics for update groups. | |
344 | */ | |
345 | struct { | |
d7c0a89a QY |
346 | uint32_t join_events; |
347 | uint32_t prune_events; | |
348 | uint32_t merge_events; | |
349 | uint32_t split_events; | |
350 | uint32_t updgrp_switch_events; | |
351 | uint32_t peer_refreshes_combined; | |
352 | uint32_t adj_count; | |
353 | uint32_t merge_checks_triggered; | |
354 | ||
355 | uint32_t updgrps_created; | |
356 | uint32_t updgrps_deleted; | |
357 | uint32_t subgrps_created; | |
358 | uint32_t subgrps_deleted; | |
d62a17ae | 359 | } update_group_stats; |
360 | ||
361 | /* BGP configuration. */ | |
d7c0a89a | 362 | uint16_t config; |
c2d58d6d | 363 | #define BGP_CONFIG_CLUSTER_ID (1 << 0) |
364 | #define BGP_CONFIG_CONFEDERATION (1 << 1) | |
718e3744 | 365 | |
d62a17ae | 366 | /* BGP router identifier. */ |
367 | struct in_addr router_id; | |
368 | struct in_addr router_id_static; | |
369 | struct in_addr router_id_zebra; | |
718e3744 | 370 | |
d62a17ae | 371 | /* BGP route reflector cluster ID. */ |
372 | struct in_addr cluster_id; | |
718e3744 | 373 | |
d62a17ae | 374 | /* BGP confederation information. */ |
375 | as_t confed_id; | |
376 | as_t *confed_peers; | |
377 | int confed_peers_cnt; | |
718e3744 | 378 | |
d62a17ae | 379 | struct thread |
380 | *t_startup; /* start-up timer on only once at the beginning */ | |
abc920f8 | 381 | |
d7c0a89a | 382 | uint32_t v_maxmed_onstartup; /* Duration of max-med on start-up */ |
abc920f8 | 383 | #define BGP_MAXMED_ONSTARTUP_UNCONFIGURED 0 /* 0 means off, its the default */ |
d7c0a89a QY |
384 | uint32_t maxmed_onstartup_value; /* Max-med value when active on |
385 | start-up */ | |
d62a17ae | 386 | struct thread |
387 | *t_maxmed_onstartup; /* non-null when max-med onstartup is on */ | |
d7c0a89a | 388 | uint8_t maxmed_onstartup_over; /* Flag to make it effective only once */ |
d62a17ae | 389 | |
ff8a8a7a CS |
390 | bool v_maxmed_admin; /* true/false if max-med administrative is on/off |
391 | */ | |
392 | #define BGP_MAXMED_ADMIN_UNCONFIGURED false /* Off by default */ | |
d7c0a89a QY |
393 | uint32_t maxmed_admin_value; /* Max-med value when administrative in on |
394 | */ | |
abc920f8 DS |
395 | #define BGP_MAXMED_VALUE_DEFAULT 4294967294 /* Maximum by default */ |
396 | ||
d7c0a89a QY |
397 | uint8_t maxmed_active; /* 1/0 if max-med is active or not */ |
398 | uint32_t maxmed_value; /* Max-med value when its active */ | |
d62a17ae | 399 | |
400 | /* BGP update delay on startup */ | |
401 | struct thread *t_update_delay; | |
402 | struct thread *t_establish_wait; | |
d7c0a89a QY |
403 | uint8_t update_delay_over; |
404 | uint8_t main_zebra_update_hold; | |
405 | uint8_t main_peers_update_hold; | |
406 | uint16_t v_update_delay; | |
407 | uint16_t v_establish_wait; | |
d62a17ae | 408 | char update_delay_begin_time[64]; |
409 | char update_delay_end_time[64]; | |
410 | char update_delay_zebra_resume_time[64]; | |
411 | char update_delay_peers_resume_time[64]; | |
d7c0a89a QY |
412 | uint32_t established; |
413 | uint32_t restarted_peers; | |
414 | uint32_t implicit_eors; | |
415 | uint32_t explicit_eors; | |
f188f2c4 DS |
416 | #define BGP_UPDATE_DELAY_DEF 0 |
417 | #define BGP_UPDATE_DELAY_MIN 0 | |
418 | #define BGP_UPDATE_DELAY_MAX 3600 | |
419 | ||
b1875e65 | 420 | /* Reference bandwidth for BGP link-bandwidth. Used when |
421 | * the LB value has to be computed based on some other | |
422 | * factor (e.g., number of multipaths for the prefix) | |
423 | * Value is in Mbps | |
424 | */ | |
425 | uint32_t lb_ref_bw; | |
426 | #define BGP_LINK_BW_REF_BW 1 | |
427 | ||
d62a17ae | 428 | /* BGP flags. */ |
d7c0a89a | 429 | uint32_t flags; |
718e3744 | 430 | #define BGP_FLAG_ALWAYS_COMPARE_MED (1 << 0) |
431 | #define BGP_FLAG_DETERMINISTIC_MED (1 << 1) | |
432 | #define BGP_FLAG_MED_MISSING_AS_WORST (1 << 2) | |
433 | #define BGP_FLAG_MED_CONFED (1 << 3) | |
434 | #define BGP_FLAG_NO_DEFAULT_IPV4 (1 << 4) | |
435 | #define BGP_FLAG_NO_CLIENT_TO_CLIENT (1 << 5) | |
718e3744 | 436 | #define BGP_FLAG_COMPARE_ROUTER_ID (1 << 7) |
437 | #define BGP_FLAG_ASPATH_IGNORE (1 << 8) | |
438 | #define BGP_FLAG_IMPORT_CHECK (1 << 9) | |
439 | #define BGP_FLAG_NO_FAST_EXT_FAILOVER (1 << 10) | |
848973c7 | 440 | #define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1 << 11) |
b0965c44 | 441 | |
442 | /* This flag is set when we have full BGP Graceful-Restart mode enable */ | |
538621f2 | 443 | #define BGP_FLAG_GRACEFUL_RESTART (1 << 12) |
b0965c44 | 444 | |
6811845b | 445 | #define BGP_FLAG_ASPATH_CONFED (1 << 13) |
2fdd455c | 446 | #define BGP_FLAG_ASPATH_MULTIPATH_RELAX (1 << 14) |
8bd9d948 | 447 | #define BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY (1 << 15) |
907f92c8 | 448 | #define BGP_FLAG_DISABLE_NH_CONNECTED_CHK (1 << 16) |
219178b6 | 449 | #define BGP_FLAG_MULTIPATH_RELAX_AS_SET (1 << 17) |
078430f6 | 450 | #define BGP_FLAG_FORCE_STATIC_PROCESS (1 << 18) |
5623e905 | 451 | #define BGP_FLAG_SHOW_HOSTNAME (1 << 19) |
6a9a3cde | 452 | #define BGP_FLAG_GR_PRESERVE_FWD (1 << 20) |
7f323236 | 453 | #define BGP_FLAG_GRACEFUL_SHUTDOWN (1 << 21) |
9f822fa2 | 454 | #define BGP_FLAG_DELETE_IN_PROGRESS (1 << 22) |
cfd47646 | 455 | #define BGP_FLAG_SELECT_DEFER_DISABLE (1 << 23) |
d6e3c15b | 456 | #define BGP_FLAG_GR_DISABLE_EOR (1 << 24) |
c208c586 S |
457 | #define BGP_FLAG_EBGP_REQUIRES_POLICY (1 << 25) |
458 | #define BGP_FLAG_SHOW_NEXTHOP_HOSTNAME (1 << 26) | |
b0965c44 | 459 | |
9cf59432 | 460 | /* This flag is set if the instance is in administrative shutdown */ |
c208c586 S |
461 | #define BGP_FLAG_SHUTDOWN (1 << 27) |
462 | #define BGP_FLAG_SUPPRESS_FIB_PENDING (1 << 28) | |
9cf59432 | 463 | |
2ba1fe69 | 464 | enum global_mode GLOBAL_GR_FSM[BGP_GLOBAL_GR_MODE] |
36235319 | 465 | [BGP_GLOBAL_GR_EVENT_CMD]; |
b0965c44 | 466 | enum global_mode global_gr_present_state; |
467 | ||
2d3dd828 | 468 | /* This variable stores the current Graceful Restart state of Zebra |
469 | * - ZEBRA_GR_ENABLE / ZEBRA_GR_DISABLE | |
470 | */ | |
471 | enum zebra_gr_mode present_zebra_gr_state; | |
472 | ||
d62a17ae | 473 | /* BGP Per AF flags */ |
d7c0a89a | 474 | uint16_t af_flags[AFI_MAX][SAFI_MAX]; |
f4882003 | 475 | #define BGP_CONFIG_DAMPENING (1 << 0) |
2c29b18a | 476 | /* l2vpn evpn flags - 1 << 0 is used for DAMPENNG */ |
f4882003 MK |
477 | #define BGP_L2VPN_EVPN_ADVERTISE_IPV4_UNICAST (1 << 1) |
478 | #define BGP_L2VPN_EVPN_ADVERTISE_IPV6_UNICAST (1 << 2) | |
479 | #define BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV4 (1 << 3) | |
480 | #define BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV6 (1 << 4) | |
481 | /* import/export between address families */ | |
482 | #define BGP_CONFIG_VRF_TO_MPLSVPN_EXPORT (1 << 5) | |
483 | #define BGP_CONFIG_MPLSVPN_TO_VRF_IMPORT (1 << 6) | |
484 | /* vrf-route leaking flags */ | |
485 | #define BGP_CONFIG_VRF_TO_VRF_IMPORT (1 << 7) | |
486 | #define BGP_CONFIG_VRF_TO_VRF_EXPORT (1 << 8) | |
154faa50 | 487 | |
210ec2a0 AS |
488 | /* BGP per AF peer count */ |
489 | uint32_t af_peer_count[AFI_MAX][SAFI_MAX]; | |
490 | ||
f663c581 RW |
491 | /* Tree for next-hop lookup cache. */ |
492 | struct bgp_nexthop_cache_head nexthop_cache_table[AFI_MAX]; | |
6aeb9e78 | 493 | |
f663c581 RW |
494 | /* Tree for import-check */ |
495 | struct bgp_nexthop_cache_head import_check_table[AFI_MAX]; | |
6aeb9e78 | 496 | |
d62a17ae | 497 | struct bgp_table *connected_table[AFI_MAX]; |
6aeb9e78 | 498 | |
d62a17ae | 499 | struct hash *address_hash; |
6aeb9e78 | 500 | |
db0e1937 MK |
501 | /* DB for all local tunnel-ips - used mainly for martian checks |
502 | Currently it only has all VxLan tunnel IPs*/ | |
503 | struct hash *tip_hash; | |
504 | ||
d62a17ae | 505 | /* Static route configuration. */ |
506 | struct bgp_table *route[AFI_MAX][SAFI_MAX]; | |
718e3744 | 507 | |
d62a17ae | 508 | /* Aggregate address configuration. */ |
509 | struct bgp_table *aggregate[AFI_MAX][SAFI_MAX]; | |
718e3744 | 510 | |
d62a17ae | 511 | /* BGP routing information base. */ |
512 | struct bgp_table *rib[AFI_MAX][SAFI_MAX]; | |
718e3744 | 513 | |
d62a17ae | 514 | /* BGP table route-map. */ |
515 | struct bgp_rmap table_map[AFI_MAX][SAFI_MAX]; | |
73ac8160 | 516 | |
d62a17ae | 517 | /* BGP redistribute configuration. */ |
518 | struct list *redist[AFI_MAX][ZEBRA_ROUTE_MAX]; | |
718e3744 | 519 | |
318cac96 | 520 | /* Allocate MPLS labels */ |
d7c0a89a | 521 | uint8_t allocate_mpls_labels[AFI_MAX][SAFI_MAX]; |
318cac96 | 522 | |
f3d32faa PG |
523 | /* Allocate hash entries to store policy routing information |
524 | * The hash are used to host pbr rules somewhere. | |
525 | * Actually, pbr will only be used by flowspec | |
526 | * those hash elements will have relationship together as | |
527 | * illustrated in below diagram: | |
528 | * | |
529 | * pbr_action a <----- pbr_match i <--- pbr_match_entry 1..n | |
530 | * <----- pbr_match j <--- pbr_match_entry 1..m | |
27e376d4 | 531 | * <----- pbr_rule k |
f3d32faa PG |
532 | * |
533 | * - here in BGP structure, the list of match and actions will | |
534 | * stand for the list of ipset sets, and table_ids in the kernel | |
535 | * - the arrow above between pbr_match and pbr_action indicate | |
536 | * that a backpointer permits match to find the action | |
537 | * - the arrow betwen match_entry and match is a hash list | |
538 | * contained in match, that lists the whole set of entries | |
539 | */ | |
540 | struct hash *pbr_match_hash; | |
27e376d4 | 541 | struct hash *pbr_rule_hash; |
f3d32faa PG |
542 | struct hash *pbr_action_hash; |
543 | ||
d62a17ae | 544 | /* timer to re-evaluate neighbor default-originate route-maps */ |
545 | struct thread *t_rmap_def_originate_eval; | |
0de4848d DS |
546 | #define RMAP_DEFAULT_ORIGINATE_EVAL_TIMER 5 |
547 | ||
d62a17ae | 548 | /* BGP distance configuration. */ |
d7c0a89a QY |
549 | uint8_t distance_ebgp[AFI_MAX][SAFI_MAX]; |
550 | uint8_t distance_ibgp[AFI_MAX][SAFI_MAX]; | |
551 | uint8_t distance_local[AFI_MAX][SAFI_MAX]; | |
d62a17ae | 552 | |
553 | /* BGP default local-preference. */ | |
d7c0a89a | 554 | uint32_t default_local_pref; |
d62a17ae | 555 | |
556 | /* BGP default subgroup pkt queue max */ | |
d7c0a89a | 557 | uint32_t default_subgroup_pkt_queue_max; |
d62a17ae | 558 | |
559 | /* BGP default timer. */ | |
d7c0a89a QY |
560 | uint32_t default_holdtime; |
561 | uint32_t default_keepalive; | |
5d5393b9 | 562 | uint32_t default_connect_retry; |
d62a17ae | 563 | |
564 | /* BGP graceful restart */ | |
d7c0a89a QY |
565 | uint32_t restart_time; |
566 | uint32_t stalepath_time; | |
b0965c44 | 567 | uint32_t select_defer_time; |
568 | struct graceful_restart_info gr_info[AFI_MAX][SAFI_MAX]; | |
2d3dd828 | 569 | uint32_t rib_stale_time; |
570 | ||
cfd47646 | 571 | #define BGP_ROUTE_SELECT_DELAY 1 |
572 | #define BGP_MAX_BEST_ROUTE_SELECT 10000 | |
d62a17ae | 573 | /* Maximum-paths configuration */ |
574 | struct bgp_maxpaths_cfg { | |
d7c0a89a QY |
575 | uint16_t maxpaths_ebgp; |
576 | uint16_t maxpaths_ibgp; | |
577 | uint16_t ibgp_flags; | |
5e242b0d | 578 | #define BGP_FLAG_IBGP_MULTIPATH_SAME_CLUSTERLEN (1 << 0) |
d62a17ae | 579 | } maxpaths[AFI_MAX][SAFI_MAX]; |
cb1faec9 | 580 | |
555e09d4 QY |
581 | _Atomic uint32_t wpkt_quanta; // max # packets to write per i/o cycle |
582 | _Atomic uint32_t rpkt_quanta; // max # packets to read per i/o cycle | |
583 | ||
37a333fe QY |
584 | /* Automatic coalesce adjust on/off */ |
585 | bool heuristic_coalesce; | |
14b8641a QY |
586 | /* Actual coalesce time */ |
587 | uint32_t coalesce_time; | |
adbac85e | 588 | |
f26845f9 QY |
589 | /* Auto-shutdown new peers */ |
590 | bool autoshutdown; | |
591 | ||
dcc68b5e | 592 | struct bgp_addpath_bgp_data tx_addpath; |
65efcfce | 593 | |
1e20238a | 594 | #ifdef ENABLE_BGP_VNC |
d62a17ae | 595 | struct rfapi_cfg *rfapi_cfg; |
596 | struct rfapi *rfapi; | |
65efcfce | 597 | #endif |
19df7279 | 598 | |
d62a17ae | 599 | /* EVPN related information */ |
14c1a7bf | 600 | |
d62a17ae | 601 | /* EVI hash table */ |
602 | struct hash *vnihash; | |
14c1a7bf | 603 | |
1a98c087 MK |
604 | /* EVPN enable - advertise gateway macip routes */ |
605 | int advertise_gw_macip; | |
606 | ||
d62a17ae | 607 | /* EVPN enable - advertise local VNIs and their MACs etc. */ |
608 | int advertise_all_vni; | |
14c1a7bf | 609 | |
fb29348a DA |
610 | /* draft-ietf-idr-deprecate-as-set-confed-set |
611 | * Reject aspaths with AS_SET and/or AS_CONFED_SET. | |
612 | */ | |
613 | bool reject_as_sets; | |
fb29348a | 614 | |
85c8d83b CS |
615 | struct bgp_evpn_info *evpn_info; |
616 | ||
bf1061d8 VB |
617 | /* EVPN - use RFC 8365 to auto-derive RT */ |
618 | int advertise_autort_rfc8365; | |
619 | ||
fd069644 DS |
620 | /* |
621 | * Flooding mechanism for BUM packets for VxLAN-EVPN. | |
622 | */ | |
623 | enum vxlan_flood_control vxlan_flood_ctrl; | |
624 | ||
d62a17ae | 625 | /* Hash table of Import RTs to EVIs */ |
626 | struct hash *import_rt_hash; | |
14c1a7bf | 627 | |
10ebe1ab MK |
628 | /* Hash table of VRF import RTs to VRFs */ |
629 | struct hash *vrf_import_rt_hash; | |
630 | ||
fe1dc5a3 MK |
631 | /* L3-VNI corresponding to this vrf */ |
632 | vni_t l3vni; | |
633 | ||
634 | /* router-mac to be used in mac-ip routes for this vrf */ | |
635 | struct ethaddr rmac; | |
636 | ||
b67a60d2 | 637 | /* originator ip - to be used as NH for type-5 routes */ |
638 | struct in_addr originator_ip; | |
639 | ||
0483af6e | 640 | /* SVI associated with the L3-VNI corresponding to this vrf */ |
641 | ifindex_t l3vni_svi_ifindex; | |
642 | ||
c589d847 AK |
643 | /* RB tree of ES-VRFs */ |
644 | struct bgp_es_vrf_rb_head es_vrf_rb_tree; | |
645 | ||
fe1dc5a3 MK |
646 | /* vrf flags */ |
647 | uint32_t vrf_flags; | |
676f83b9 | 648 | #define BGP_VRF_AUTO (1 << 0) |
154faa50 MK |
649 | #define BGP_VRF_IMPORT_RT_CFGD (1 << 1) |
650 | #define BGP_VRF_EXPORT_RT_CFGD (1 << 2) | |
651 | #define BGP_VRF_RD_CFGD (1 << 3) | |
23e386ac MK |
652 | #define BGP_VRF_L3VNI_PREFIX_ROUTES_ONLY (1 << 4) |
653 | ||
676f83b9 | 654 | /* unique ID for auto derivation of RD for this vrf */ |
655 | uint16_t vrf_rd_id; | |
656 | ||
92708db6 | 657 | /* Automatically derived RD for this VRF */ |
658 | struct prefix_rd vrf_prd_auto; | |
659 | ||
676f83b9 | 660 | /* RD for this VRF */ |
661 | struct prefix_rd vrf_prd; | |
c581d8b0 MK |
662 | |
663 | /* import rt list for the vrf instance */ | |
664 | struct list *vrf_import_rtl; | |
665 | ||
666 | /* export rt list for the vrf instance */ | |
667 | struct list *vrf_export_rtl; | |
fe1dc5a3 | 668 | |
6a8657d0 MK |
669 | /* list of corresponding l2vnis (struct bgpevpn) */ |
670 | struct list *l2vnis; | |
671 | ||
53c84f78 MK |
672 | /* route map for advertise ipv4/ipv6 unicast (type-5 routes) */ |
673 | struct bgp_rmap adv_cmd_rmap[AFI_MAX][SAFI_MAX]; | |
674 | ||
e70e9f8e | 675 | struct vpn_policy vpn_policy[AFI_MAX]; |
ddb5b488 | 676 | |
4762c213 PG |
677 | struct bgp_pbr_config *bgp_pbr_cfg; |
678 | ||
36dc7588 | 679 | /* Count of peers in established state */ |
680 | uint32_t established_peers; | |
681 | ||
f7e1c681 | 682 | /* Weighted ECMP related config. */ |
683 | enum bgp_link_bw_handling lb_handling; | |
684 | ||
b6c386bb DS |
685 | /* Process Queue for handling routes */ |
686 | struct work_queue *process_queue; | |
e73c112e | 687 | |
7f7940e6 | 688 | /* BGP Conditional advertisement */ |
c385f82a | 689 | uint32_t condition_filter_count; |
7f7940e6 | 690 | struct thread *t_condition_check; |
b6c386bb | 691 | |
d62a17ae | 692 | QOBJ_FIELDS |
718e3744 | 693 | }; |
19df7279 | 694 | DECLARE_QOBJ_TYPE(bgp) |
718e3744 | 695 | |
2b9bcf30 DL |
696 | DECLARE_HOOK(bgp_inst_delete, (struct bgp *bgp), (bgp)) |
697 | DECLARE_HOOK(bgp_inst_config_write, | |
698 | (struct bgp *bgp, struct vty *vty), | |
699 | (bgp, vty)) | |
700 | ||
36235319 QY |
701 | /* Thread callback information */ |
702 | struct afi_safi_info { | |
703 | afi_t afi; | |
704 | safi_t safi; | |
705 | struct bgp *bgp; | |
706 | }; | |
cfd47646 | 707 | |
2a3d5731 | 708 | #define BGP_ROUTE_ADV_HOLD(bgp) (bgp->main_peers_update_hold) |
d889623f | 709 | |
d62a17ae | 710 | #define IS_BGP_INST_KNOWN_TO_ZEBRA(bgp) \ |
711 | (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT \ | |
712 | || (bgp->inst_type == BGP_INSTANCE_TYPE_VRF \ | |
713 | && bgp->vrf_id != VRF_UNKNOWN)) | |
ad4cbda1 | 714 | |
36235319 | 715 | #define BGP_SELECT_DEFER_DISABLE(bgp) \ |
892fedb6 | 716 | (CHECK_FLAG(bgp->flags, BGP_FLAG_SELECT_DEFER_DISABLE)) |
cfd47646 | 717 | |
c208c586 S |
718 | #define BGP_SUPPRESS_FIB_ENABLED(bgp) \ |
719 | (CHECK_FLAG(bgp->flags, BGP_FLAG_SUPPRESS_FIB_PENDING)) | |
720 | ||
718e3744 | 721 | /* BGP peer-group support. */ |
d62a17ae | 722 | struct peer_group { |
723 | /* Name of the peer-group. */ | |
724 | char *name; | |
718e3744 | 725 | |
d62a17ae | 726 | /* Pointer to BGP. */ |
727 | struct bgp *bgp; | |
718e3744 | 728 | |
d62a17ae | 729 | /* Peer-group client list. */ |
730 | struct list *peer; | |
f14e6fdb | 731 | |
d62a17ae | 732 | /** Dynamic neighbor listening ranges */ |
733 | struct list *listen_range[AFI_MAX]; | |
734 | ||
735 | /* Peer-group config */ | |
736 | struct peer *conf; | |
718e3744 | 737 | }; |
738 | ||
739 | /* BGP Notify message format. */ | |
d62a17ae | 740 | struct bgp_notify { |
d7c0a89a QY |
741 | uint8_t code; |
742 | uint8_t subcode; | |
d62a17ae | 743 | char *data; |
744 | bgp_size_t length; | |
d7c0a89a | 745 | uint8_t *raw_data; |
718e3744 | 746 | }; |
747 | ||
748 | /* Next hop self address. */ | |
d62a17ae | 749 | struct bgp_nexthop { |
750 | struct interface *ifp; | |
751 | struct in_addr v4; | |
752 | struct in6_addr v6_global; | |
753 | struct in6_addr v6_local; | |
718e3744 | 754 | }; |
755 | ||
a82478b9 DS |
756 | /* BGP addpath values */ |
757 | #define BGP_ADDPATH_RX 1 | |
758 | #define BGP_ADDPATH_TX 2 | |
759 | #define BGP_ADDPATH_ID_LEN 4 | |
760 | ||
adbac85e DW |
761 | #define BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE 1 |
762 | ||
3f54c705 | 763 | /* Route map direction */ |
2a3d5731 DW |
764 | #define RMAP_IN 0 |
765 | #define RMAP_OUT 1 | |
766 | #define RMAP_MAX 2 | |
fee0f4c6 | 767 | |
e2521429 DA |
768 | #define BGP_DEFAULT_TTL 1 |
769 | #define BGP_GTSM_HOPS_DISABLED 0 | |
770 | #define BGP_GTSM_HOPS_CONNECTED 1 | |
a0903cd2 | 771 | |
7f7940e6 | 772 | /* Advertise map */ |
cf2ad4d8 MK |
773 | #define CONDITION_NON_EXIST false |
774 | #define CONDITION_EXIST true | |
c385f82a | 775 | |
cf2ad4d8 | 776 | enum update_type { WITHDRAW, ADVERTISE }; |
7f7940e6 | 777 | |
65efcfce LB |
778 | #include "filter.h" |
779 | ||
718e3744 | 780 | /* BGP filter structure. */ |
d62a17ae | 781 | struct bgp_filter { |
782 | /* Distribute-list. */ | |
783 | struct { | |
784 | char *name; | |
785 | struct access_list *alist; | |
786 | } dlist[FILTER_MAX]; | |
787 | ||
788 | /* Prefix-list. */ | |
789 | struct { | |
790 | char *name; | |
791 | struct prefix_list *plist; | |
792 | } plist[FILTER_MAX]; | |
793 | ||
794 | /* Filter-list. */ | |
795 | struct { | |
796 | char *name; | |
797 | struct as_list *aslist; | |
798 | } aslist[FILTER_MAX]; | |
799 | ||
800 | /* Route-map. */ | |
801 | struct { | |
802 | char *name; | |
803 | struct route_map *map; | |
804 | } map[RMAP_MAX]; | |
805 | ||
806 | /* Unsuppress-map. */ | |
807 | struct { | |
808 | char *name; | |
809 | struct route_map *map; | |
810 | } usmap; | |
7f7940e6 MK |
811 | |
812 | /* Advertise-map */ | |
813 | struct { | |
814 | char *aname; | |
815 | struct route_map *amap; | |
816 | ||
817 | bool condition; | |
818 | ||
819 | char *cname; | |
820 | struct route_map *cmap; | |
821 | ||
fa36596c | 822 | enum update_type update_type; |
7f7940e6 | 823 | } advmap; |
718e3744 | 824 | }; |
825 | ||
6d85b15b JBD |
826 | /* IBGP/EBGP identifier. We also have a CONFED peer, which is to say, |
827 | a peer who's AS is part of our Confederation. */ | |
d62a17ae | 828 | typedef enum { |
faa16034 DS |
829 | BGP_PEER_UNSPECIFIED, |
830 | BGP_PEER_IBGP, | |
d62a17ae | 831 | BGP_PEER_EBGP, |
832 | BGP_PEER_INTERNAL, | |
833 | BGP_PEER_CONFED, | |
6d85b15b JBD |
834 | } bgp_peer_sort_t; |
835 | ||
d6661008 DS |
836 | /* BGP message header and packet size. */ |
837 | #define BGP_MARKER_SIZE 16 | |
838 | #define BGP_HEADER_SIZE 19 | |
839 | #define BGP_MAX_PACKET_SIZE 4096 | |
0a91ff55 | 840 | #define BGP_MAX_PACKET_SIZE_OVERFLOW 1024 |
d6661008 | 841 | |
3f9c7369 DS |
842 | /* |
843 | * Trigger delay for bgp_announce_route(). | |
844 | */ | |
845 | #define BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS 100 | |
846 | #define BGP_ANNOUNCE_ROUTE_DELAY_MS 500 | |
847 | ||
d62a17ae | 848 | struct peer_af { |
849 | /* back pointer to the peer */ | |
850 | struct peer *peer; | |
3f9c7369 | 851 | |
d62a17ae | 852 | /* which subgroup the peer_af belongs to */ |
853 | struct update_subgroup *subgroup; | |
3f9c7369 | 854 | |
d62a17ae | 855 | /* for being part of an update subgroup's peer list */ |
856 | LIST_ENTRY(peer_af) subgrp_train; | |
3f9c7369 | 857 | |
d62a17ae | 858 | /* for being part of a packet's peer list */ |
859 | LIST_ENTRY(peer_af) pkt_train; | |
3f9c7369 | 860 | |
d62a17ae | 861 | struct bpacket *next_pkt_to_send; |
3f9c7369 | 862 | |
d62a17ae | 863 | /* |
864 | * Trigger timer for bgp_announce_route(). | |
865 | */ | |
866 | struct thread *t_announce_route; | |
3f9c7369 | 867 | |
d62a17ae | 868 | afi_t afi; |
869 | safi_t safi; | |
870 | int afid; | |
3f9c7369 | 871 | }; |
b0965c44 | 872 | /* BGP GR per peer ds */ |
873 | ||
2ba1fe69 | 874 | #define BGP_PEER_GR_MODE 5 |
875 | #define BGP_PEER_GR_EVENT_CMD 6 | |
b0965c44 | 876 | |
877 | enum peer_mode { | |
878 | PEER_HELPER = 0, | |
879 | PEER_GR, | |
880 | PEER_DISABLE, | |
881 | PEER_INVALID, | |
882 | PEER_GLOBAL_INHERIT /* This is the default mode */ | |
883 | ||
884 | }; | |
885 | ||
886 | enum peer_gr_command { | |
887 | PEER_GR_CMD = 0, | |
888 | NO_PEER_GR_CMD, | |
2ba1fe69 | 889 | PEER_DISABLE_CMD, |
b0965c44 | 890 | NO_PEER_DISABLE_CMD, |
891 | PEER_HELPER_CMD, | |
892 | NO_PEER_HELPER_CMD | |
893 | }; | |
894 | ||
895 | typedef unsigned int (*bgp_peer_gr_action_ptr)(struct peer *, int, int); | |
896 | ||
897 | struct bgp_peer_gr { | |
898 | enum peer_mode next_state; | |
899 | bgp_peer_gr_action_ptr action_fun; | |
900 | }; | |
901 | ||
d1060698 DS |
902 | /* BGP finite state machine events. */ |
903 | enum bgp_fsm_events { | |
904 | BGP_Start = 1, | |
905 | BGP_Stop, | |
906 | TCP_connection_open, | |
907 | TCP_connection_closed, | |
908 | TCP_connection_open_failed, | |
909 | TCP_fatal_error, | |
910 | ConnectRetry_timer_expired, | |
911 | Hold_Timer_expired, | |
912 | KeepAlive_timer_expired, | |
913 | Receive_OPEN_message, | |
914 | Receive_KEEPALIVE_message, | |
915 | Receive_UPDATE_message, | |
916 | Receive_NOTIFICATION_message, | |
917 | Clearing_Completed, | |
918 | BGP_EVENTS_MAX, | |
919 | }; | |
3f9c7369 | 920 | |
8398b5d5 DS |
921 | /* BGP finite state machine status. */ |
922 | enum bgp_fsm_status { | |
923 | Idle = 1, | |
924 | Connect, | |
925 | Active, | |
926 | OpenSent, | |
927 | OpenConfirm, | |
928 | Established, | |
929 | Clearing, | |
930 | Deleted, | |
931 | BGP_STATUS_MAX, | |
932 | }; | |
933 | ||
718e3744 | 934 | /* BGP neighbor structure. */ |
d62a17ae | 935 | struct peer { |
936 | /* BGP structure. */ | |
937 | struct bgp *bgp; | |
938 | ||
939 | /* reference count, primarily to allow bgp_process'ing of route_node's | |
940 | * to be done after a struct peer is deleted. | |
941 | * | |
942 | * named 'lock' for hysterical reasons within Quagga. | |
943 | */ | |
944 | int lock; | |
945 | ||
946 | /* BGP peer group. */ | |
947 | struct peer_group *group; | |
948 | uint64_t version[AFI_MAX][SAFI_MAX]; | |
949 | ||
950 | /* BGP peer_af structures, per configured AF on this peer */ | |
951 | struct peer_af *peer_af_array[BGP_AF_MAX]; | |
952 | ||
953 | /* Peer's remote AS number. */ | |
954 | int as_type; | |
955 | as_t as; | |
956 | ||
957 | /* Peer's local AS number. */ | |
958 | as_t local_as; | |
959 | ||
960 | bgp_peer_sort_t sort; | |
961 | ||
962 | /* Peer's Change local AS number. */ | |
963 | as_t change_local_as; | |
964 | ||
965 | /* Remote router ID. */ | |
966 | struct in_addr remote_id; | |
967 | ||
968 | /* Local router ID. */ | |
969 | struct in_addr local_id; | |
970 | ||
971 | /* Packet receive and send buffer. */ | |
424ab01d QY |
972 | pthread_mutex_t io_mtx; // guards ibuf, obuf |
973 | struct stream_fifo *ibuf; // packets waiting to be processed | |
974 | struct stream_fifo *obuf; // packets waiting to be written | |
975 | ||
74ffbfe6 QY |
976 | struct ringbuf *ibuf_work; // WiP buffer used by bgp_read() only |
977 | struct stream *obuf_work; // WiP buffer used to construct packets | |
424ab01d QY |
978 | |
979 | struct stream *curr; // the current packet being parsed | |
d62a17ae | 980 | |
981 | /* We use a separate stream to encode MP_REACH_NLRI for efficient | |
424ab01d | 982 | * NLRI packing. peer->obuf_work stores all the other attributes. The |
d62a17ae | 983 | * actual packet is then constructed by concatenating the two. |
984 | */ | |
985 | struct stream *scratch; | |
986 | ||
987 | /* the doppelganger peer structure, due to dual TCP conn setup */ | |
988 | struct peer *doppelganger; | |
989 | ||
990 | /* Status of the peer. */ | |
8398b5d5 DS |
991 | enum bgp_fsm_status status; |
992 | enum bgp_fsm_status ostatus; | |
d62a17ae | 993 | |
994 | /* FSM events, stored for debug purposes. | |
995 | * Note: uchar used for reduced memory usage. | |
996 | */ | |
d1060698 DS |
997 | enum bgp_fsm_events cur_event; |
998 | enum bgp_fsm_events last_event; | |
999 | enum bgp_fsm_events last_major_event; | |
d62a17ae | 1000 | |
1001 | /* Peer index, used for dumping TABLE_DUMP_V2 format */ | |
1002 | uint16_t table_dump_index; | |
1003 | ||
1004 | /* Peer information */ | |
1005 | int fd; /* File descriptor */ | |
1006 | int ttl; /* TTL of TCP connection to the peer. */ | |
1007 | int rtt; /* Estimated round-trip-time from TCP_INFO */ | |
8336c896 DA |
1008 | int rtt_expected; /* Expected round-trip-time for a peer */ |
1009 | uint8_t rtt_keepalive_rcv; /* Received count for RTT shutdown */ | |
1010 | uint8_t rtt_keepalive_conf; /* Configured count for RTT shutdown */ | |
d62a17ae | 1011 | int gtsm_hops; /* minimum hopcount to peer */ |
1012 | char *desc; /* Description of the peer. */ | |
1013 | unsigned short port; /* Destination port for peer */ | |
1014 | char *host; /* Printable address of the peer. */ | |
1015 | union sockunion su; /* Sockunion address of the peer. */ | |
a80beece | 1016 | #define BGP_PEER_SU_UNSPEC(peer) (peer->su.sa.sa_family == AF_UNSPEC) |
d62a17ae | 1017 | time_t uptime; /* Last Up/Down time */ |
1018 | time_t readtime; /* Last read time */ | |
1019 | time_t resettime; /* Last reset time */ | |
1020 | ||
d62a17ae | 1021 | char *conf_if; /* neighbor interface config name. */ |
1022 | struct interface *ifp; /* corresponding interface */ | |
1023 | char *ifname; /* bind interface name. */ | |
1024 | char *update_if; | |
1025 | union sockunion *update_source; | |
1026 | ||
1027 | union sockunion *su_local; /* Sockunion of local address. */ | |
1028 | union sockunion *su_remote; /* Sockunion of remote address. */ | |
1029 | int shared_network; /* Is this peer shared same network. */ | |
1030 | struct bgp_nexthop nexthop; /* Nexthop */ | |
1031 | ||
1032 | /* Peer address family configuration. */ | |
d7c0a89a QY |
1033 | uint8_t afc[AFI_MAX][SAFI_MAX]; |
1034 | uint8_t afc_nego[AFI_MAX][SAFI_MAX]; | |
1035 | uint8_t afc_adv[AFI_MAX][SAFI_MAX]; | |
1036 | uint8_t afc_recv[AFI_MAX][SAFI_MAX]; | |
d62a17ae | 1037 | |
1038 | /* Capability flags (reset in bgp_stop) */ | |
d7c0a89a | 1039 | uint32_t cap; |
e9faf4be QY |
1040 | #define PEER_CAP_REFRESH_ADV (1U << 0) /* refresh advertised */ |
1041 | #define PEER_CAP_REFRESH_OLD_RCV (1U << 1) /* refresh old received */ | |
1042 | #define PEER_CAP_REFRESH_NEW_RCV (1U << 2) /* refresh rfc received */ | |
1043 | #define PEER_CAP_DYNAMIC_ADV (1U << 3) /* dynamic advertised */ | |
1044 | #define PEER_CAP_DYNAMIC_RCV (1U << 4) /* dynamic received */ | |
1045 | #define PEER_CAP_RESTART_ADV (1U << 5) /* restart advertised */ | |
1046 | #define PEER_CAP_RESTART_RCV (1U << 6) /* restart received */ | |
1047 | #define PEER_CAP_AS4_ADV (1U << 7) /* as4 advertised */ | |
1048 | #define PEER_CAP_AS4_RCV (1U << 8) /* as4 received */ | |
1049 | #define PEER_CAP_RESTART_BIT_ADV (1U << 9) /* sent restart state */ | |
1050 | #define PEER_CAP_RESTART_BIT_RCV (1U << 10) /* peer restart state */ | |
1051 | #define PEER_CAP_ADDPATH_ADV (1U << 11) /* addpath advertised */ | |
1052 | #define PEER_CAP_ADDPATH_RCV (1U << 12) /* addpath received */ | |
1053 | #define PEER_CAP_ENHE_ADV (1U << 13) /* Extended nexthop advertised */ | |
1054 | #define PEER_CAP_ENHE_RCV (1U << 14) /* Extended nexthop received */ | |
1055 | #define PEER_CAP_HOSTNAME_ADV (1U << 15) /* hostname advertised */ | |
1056 | #define PEER_CAP_HOSTNAME_RCV (1U << 16) /* hostname received */ | |
718e3744 | 1057 | |
d62a17ae | 1058 | /* Capability flags (reset in bgp_stop) */ |
d7c0a89a | 1059 | uint32_t af_cap[AFI_MAX][SAFI_MAX]; |
e9faf4be QY |
1060 | #define PEER_CAP_ORF_PREFIX_SM_ADV (1U << 0) /* send-mode advertised */ |
1061 | #define PEER_CAP_ORF_PREFIX_RM_ADV (1U << 1) /* receive-mode advertised */ | |
1062 | #define PEER_CAP_ORF_PREFIX_SM_RCV (1U << 2) /* send-mode received */ | |
1063 | #define PEER_CAP_ORF_PREFIX_RM_RCV (1U << 3) /* receive-mode received */ | |
1064 | #define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1U << 4) /* send-mode received */ | |
1065 | #define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1U << 5) /* receive-mode received */ | |
1066 | #define PEER_CAP_RESTART_AF_RCV (1U << 6) /* graceful restart afi/safi received */ | |
1067 | #define PEER_CAP_RESTART_AF_PRESERVE_RCV (1U << 7) /* graceful restart afi/safi F-bit received */ | |
1068 | #define PEER_CAP_ADDPATH_AF_TX_ADV (1U << 8) /* addpath tx advertised */ | |
1069 | #define PEER_CAP_ADDPATH_AF_TX_RCV (1U << 9) /* addpath tx received */ | |
1070 | #define PEER_CAP_ADDPATH_AF_RX_ADV (1U << 10) /* addpath rx advertised */ | |
1071 | #define PEER_CAP_ADDPATH_AF_RX_RCV (1U << 11) /* addpath rx received */ | |
1072 | #define PEER_CAP_ENHE_AF_ADV (1U << 12) /* Extended nexthopi afi/safi advertised */ | |
1073 | #define PEER_CAP_ENHE_AF_RCV (1U << 13) /* Extended nexthop afi/safi received */ | |
1074 | #define PEER_CAP_ENHE_AF_NEGO (1U << 14) /* Extended nexthop afi/safi negotiated */ | |
718e3744 | 1075 | |
d62a17ae | 1076 | /* Global configuration flags. */ |
9fb964de PM |
1077 | /* |
1078 | * Parallel array to flags that indicates whether each flag originates | |
1079 | * from a peer-group or if it is config that is specific to this | |
1080 | * individual peer. If a flag is set independent of the peer-group, the | |
1081 | * same bit should be set here. If this peer is a peer-group, this | |
1082 | * memory region should be all zeros. | |
1083 | * | |
1084 | * The assumption is that the default state for all flags is unset, | |
1085 | * so if a flag is unset, the corresponding override flag is unset too. | |
1086 | * However if a flag is set, the corresponding override flag is set. | |
1087 | */ | |
1088 | uint32_t flags_override; | |
1089 | /* | |
1090 | * Parallel array to flags that indicates whether the default behavior | |
1091 | * of *flags_override* should be inverted. If a flag is unset and the | |
1092 | * corresponding invert flag is set, the corresponding override flag | |
1093 | * would be set. However if a flag is set and the corresponding invert | |
1094 | * flag is unset, the corresponding override flag would be unset. | |
1095 | * | |
1096 | * This can be used for attributes like *send-community*, which are | |
1097 | * implicitely enabled and have to be disabled explicitely, compared to | |
1098 | * 'normal' attributes like *next-hop-self* which are implicitely set. | |
1099 | * | |
1100 | * All operations dealing with flags should apply the following boolean | |
1101 | * logic to keep the internal flag system in a sane state: | |
1102 | * | |
1103 | * value=0 invert=0 Inherit flag if member, otherwise unset flag | |
1104 | * value=0 invert=1 Unset flag unconditionally | |
1105 | * value=1 invert=0 Set flag unconditionally | |
1106 | * value=1 invert=1 Inherit flag if member, otherwise set flag | |
1107 | * | |
1108 | * Contrary to the implementation of *flags_override*, the flag | |
1109 | * inversion state can be set either on the peer OR the peer *and* the | |
1110 | * peer-group. This was done on purpose, as the inversion state of a | |
1111 | * flag can be determined on either the peer or the peer-group. | |
1112 | * | |
1113 | * Example: Enabling the cisco configuration mode inverts all flags | |
1114 | * related to *send-community* unconditionally for both peer-groups and | |
1115 | * peers. | |
1116 | * | |
1117 | * This behavior is different for interface peers though, which enable | |
1118 | * the *extended-nexthop* flag by default, which regular peers do not. | |
1119 | * As the peer-group can contain both regular and interface peers, the | |
1120 | * flag inversion state must be set on the peer only. | |
1121 | * | |
1122 | * When a peer inherits the configuration from a peer-group and the | |
1123 | * inversion state of the flag differs between peer and peer-group, the | |
1124 | * newly set value must equal to the inverted state of the peer-group. | |
1125 | */ | |
1126 | uint32_t flags_invert; | |
1127 | /* | |
1128 | * Effective array for storing the peer/peer-group flags. In case of a | |
1129 | * peer-group, the peer-specific overrides (see flags_override and | |
1130 | * flags_invert) must be respected. | |
1131 | */ | |
d7c0a89a | 1132 | uint32_t flags; |
e9faf4be QY |
1133 | #define PEER_FLAG_PASSIVE (1U << 0) /* passive mode */ |
1134 | #define PEER_FLAG_SHUTDOWN (1U << 1) /* shutdown */ | |
1135 | #define PEER_FLAG_DONT_CAPABILITY (1U << 2) /* dont-capability */ | |
1136 | #define PEER_FLAG_OVERRIDE_CAPABILITY (1U << 3) /* override-capability */ | |
1137 | #define PEER_FLAG_STRICT_CAP_MATCH (1U << 4) /* strict-match */ | |
1138 | #define PEER_FLAG_DYNAMIC_CAPABILITY (1U << 5) /* dynamic capability */ | |
1139 | #define PEER_FLAG_DISABLE_CONNECTED_CHECK (1U << 6) /* disable-connected-check */ | |
1140 | #define PEER_FLAG_LOCAL_AS_NO_PREPEND (1U << 7) /* local-as no-prepend */ | |
1141 | #define PEER_FLAG_LOCAL_AS_REPLACE_AS (1U << 8) /* local-as no-prepend replace-as */ | |
1142 | #define PEER_FLAG_DELETE (1U << 9) /* mark the peer for deleting */ | |
1143 | #define PEER_FLAG_CONFIG_NODE (1U << 10) /* the node to update configs on */ | |
1144 | #define PEER_FLAG_LONESOUL (1U << 11) | |
1145 | #define PEER_FLAG_DYNAMIC_NEIGHBOR (1U << 12) /* dynamic neighbor */ | |
1146 | #define PEER_FLAG_CAPABILITY_ENHE (1U << 13) /* Extended next-hop (rfc 5549)*/ | |
1147 | #define PEER_FLAG_IFPEER_V6ONLY (1U << 14) /* if-based peer is v6 only */ | |
1148 | #define PEER_FLAG_IS_RFAPI_HD (1U << 15) /* attached to rfapi HD */ | |
1149 | #define PEER_FLAG_ENFORCE_FIRST_AS (1U << 16) /* enforce-first-as */ | |
1150 | #define PEER_FLAG_ROUTEADV (1U << 17) /* route advertise */ | |
1151 | #define PEER_FLAG_TIMER (1U << 18) /* keepalive & holdtime */ | |
1152 | #define PEER_FLAG_TIMER_CONNECT (1U << 19) /* connect timer */ | |
1153 | #define PEER_FLAG_PASSWORD (1U << 20) /* password */ | |
1154 | #define PEER_FLAG_LOCAL_AS (1U << 21) /* local-as */ | |
1155 | #define PEER_FLAG_UPDATE_SOURCE (1U << 22) /* update-source */ | |
02a82b47 | 1156 | |
b0965c44 | 1157 | /* BGP-GR Peer related flags */ |
e9faf4be QY |
1158 | #define PEER_FLAG_GRACEFUL_RESTART_HELPER (1U << 23) /* Helper */ |
1159 | #define PEER_FLAG_GRACEFUL_RESTART (1U << 24) /* Graceful Restart */ | |
1160 | #define PEER_FLAG_GRACEFUL_RESTART_GLOBAL_INHERIT (1U << 25) /* Global-Inherit */ | |
8336c896 | 1161 | #define PEER_FLAG_RTT_SHUTDOWN (1U << 26) /* shutdown rtt */ |
b0965c44 | 1162 | |
1163 | /* | |
1164 | *GR-Disabled mode means unset PEER_FLAG_GRACEFUL_RESTART | |
1165 | *& PEER_FLAG_GRACEFUL_RESTART_HELPER | |
1166 | *and PEER_FLAG_GRACEFUL_RESTART_GLOBAL_INHERIT | |
1167 | */ | |
1168 | ||
2ba1fe69 | 1169 | struct bgp_peer_gr PEER_GR_FSM[BGP_PEER_GR_MODE][BGP_PEER_GR_EVENT_CMD]; |
b0965c44 | 1170 | enum peer_mode peer_gr_present_state; |
1171 | /* Non stop forwarding afi-safi count for BGP gr feature*/ | |
1172 | uint8_t nsf_af_count; | |
1173 | ||
1174 | uint8_t peer_gr_new_status_flag; | |
e9faf4be QY |
1175 | #define PEER_GRACEFUL_RESTART_NEW_STATE_HELPER (1U << 0) |
1176 | #define PEER_GRACEFUL_RESTART_NEW_STATE_RESTART (1U << 1) | |
1177 | #define PEER_GRACEFUL_RESTART_NEW_STATE_INHERIT (1U << 2) | |
b0965c44 | 1178 | |
d62a17ae | 1179 | /* outgoing message sent in CEASE_ADMIN_SHUTDOWN notify */ |
1180 | char *tx_shutdown_message; | |
718e3744 | 1181 | |
d62a17ae | 1182 | /* NSF mode (graceful restart) */ |
d7c0a89a | 1183 | uint8_t nsf[AFI_MAX][SAFI_MAX]; |
9e3b51a7 | 1184 | /* EOR Send time */ |
1185 | time_t eor_stime[AFI_MAX][SAFI_MAX]; | |
1186 | /* Last update packet sent time */ | |
1187 | time_t pkt_stime[AFI_MAX][SAFI_MAX]; | |
93406d87 | 1188 | |
04e1c5bb QY |
1189 | /* Peer Per AF flags */ |
1190 | /* | |
9fb964de PM |
1191 | * Please consult the comments for *flags_override*, *flags_invert* and |
1192 | * *flags* to understand what these three arrays do. The address-family | |
1193 | * specific attributes are being treated the exact same way as global | |
1194 | * peer attributes. | |
04e1c5bb QY |
1195 | */ |
1196 | uint32_t af_flags_override[AFI_MAX][SAFI_MAX]; | |
27c05d4d | 1197 | uint32_t af_flags_invert[AFI_MAX][SAFI_MAX]; |
d7c0a89a | 1198 | uint32_t af_flags[AFI_MAX][SAFI_MAX]; |
e9faf4be QY |
1199 | #define PEER_FLAG_SEND_COMMUNITY (1U << 0) /* send-community */ |
1200 | #define PEER_FLAG_SEND_EXT_COMMUNITY (1U << 1) /* send-community ext. */ | |
1201 | #define PEER_FLAG_NEXTHOP_SELF (1U << 2) /* next-hop-self */ | |
1202 | #define PEER_FLAG_REFLECTOR_CLIENT (1U << 3) /* reflector-client */ | |
1203 | #define PEER_FLAG_RSERVER_CLIENT (1U << 4) /* route-server-client */ | |
1204 | #define PEER_FLAG_SOFT_RECONFIG (1U << 5) /* soft-reconfiguration */ | |
1205 | #define PEER_FLAG_AS_PATH_UNCHANGED (1U << 6) /* transparent-as */ | |
1206 | #define PEER_FLAG_NEXTHOP_UNCHANGED (1U << 7) /* transparent-next-hop */ | |
1207 | #define PEER_FLAG_MED_UNCHANGED (1U << 8) /* transparent-next-hop */ | |
1208 | #define PEER_FLAG_DEFAULT_ORIGINATE (1U << 9) /* default-originate */ | |
1209 | #define PEER_FLAG_REMOVE_PRIVATE_AS (1U << 10) /* remove-private-as */ | |
1210 | #define PEER_FLAG_ALLOWAS_IN (1U << 11) /* set allowas-in */ | |
1211 | #define PEER_FLAG_ORF_PREFIX_SM (1U << 12) /* orf capability send-mode */ | |
1212 | #define PEER_FLAG_ORF_PREFIX_RM (1U << 13) /* orf capability receive-mode */ | |
1213 | #define PEER_FLAG_MAX_PREFIX (1U << 14) /* maximum prefix */ | |
1214 | #define PEER_FLAG_MAX_PREFIX_WARNING (1U << 15) /* maximum prefix warning-only */ | |
1215 | #define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1U << 16) /* leave link-local nexthop unchanged */ | |
1216 | #define PEER_FLAG_FORCE_NEXTHOP_SELF (1U << 17) /* next-hop-self force */ | |
1217 | #define PEER_FLAG_REMOVE_PRIVATE_AS_ALL (1U << 18) /* remove-private-as all */ | |
1218 | #define PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE (1U << 19) /* remove-private-as replace-as */ | |
1219 | #define PEER_FLAG_AS_OVERRIDE (1U << 20) /* as-override */ | |
1220 | #define PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE (1U << 21) /* remove-private-as all replace-as */ | |
1221 | #define PEER_FLAG_WEIGHT (1U << 24) /* weight */ | |
1222 | #define PEER_FLAG_ALLOWAS_IN_ORIGIN (1U << 25) /* allowas-in origin */ | |
1223 | #define PEER_FLAG_SEND_LARGE_COMMUNITY (1U << 26) /* Send large Communities */ | |
1224 | #define PEER_FLAG_MAX_PREFIX_OUT (1U << 27) /* outgoing maximum prefix */ | |
1225 | #define PEER_FLAG_MAX_PREFIX_FORCE (1U << 28) /* maximum-prefix <num> force */ | |
0df7c91f | 1226 | |
dcc68b5e MS |
1227 | enum bgp_addpath_strat addpath_type[AFI_MAX][SAFI_MAX]; |
1228 | ||
d62a17ae | 1229 | /* MD5 password */ |
1230 | char *password; | |
718e3744 | 1231 | |
d62a17ae | 1232 | /* default-originate route-map. */ |
1233 | struct { | |
1234 | char *name; | |
1235 | struct route_map *map; | |
1236 | } default_rmap[AFI_MAX][SAFI_MAX]; | |
718e3744 | 1237 | |
d62a17ae | 1238 | /* Peer status flags. */ |
d7c0a89a | 1239 | uint16_t sflags; |
e9faf4be QY |
1240 | #define PEER_STATUS_ACCEPT_PEER (1U << 0) /* accept peer */ |
1241 | #define PEER_STATUS_PREFIX_OVERFLOW (1U << 1) /* prefix-overflow */ | |
1242 | #define PEER_STATUS_CAPABILITY_OPEN (1U << 2) /* capability open send */ | |
1243 | #define PEER_STATUS_HAVE_ACCEPT (1U << 3) /* accept peer's parent */ | |
1244 | #define PEER_STATUS_GROUP (1U << 4) /* peer-group conf */ | |
1245 | #define PEER_STATUS_NSF_MODE (1U << 5) /* NSF aware peer */ | |
1246 | #define PEER_STATUS_NSF_WAIT (1U << 6) /* wait comeback peer */ | |
718e3744 | 1247 | |
d62a17ae | 1248 | /* Peer status af flags (reset in bgp_stop) */ |
d7c0a89a | 1249 | uint16_t af_sflags[AFI_MAX][SAFI_MAX]; |
e9faf4be QY |
1250 | #define PEER_STATUS_ORF_PREFIX_SEND (1U << 0) /* prefix-list send peer */ |
1251 | #define PEER_STATUS_ORF_WAIT_REFRESH (1U << 1) /* wait refresh received peer */ | |
1252 | #define PEER_STATUS_PREFIX_THRESHOLD (1U << 2) /* exceed prefix-threshold */ | |
1253 | #define PEER_STATUS_PREFIX_LIMIT (1U << 3) /* exceed prefix-limit */ | |
1254 | #define PEER_STATUS_EOR_SEND (1U << 4) /* end-of-rib send to peer */ | |
1255 | #define PEER_STATUS_EOR_RECEIVED (1U << 5) /* end-of-rib received from peer */ | |
e0701b79 | 1256 | |
b90a8e13 | 1257 | /* Configured timer values. */ |
1588f6f4 QY |
1258 | _Atomic uint32_t holdtime; |
1259 | _Atomic uint32_t keepalive; | |
1260 | _Atomic uint32_t connect; | |
1261 | _Atomic uint32_t routeadv; | |
d62a17ae | 1262 | |
1263 | /* Timer values. */ | |
1588f6f4 QY |
1264 | _Atomic uint32_t v_start; |
1265 | _Atomic uint32_t v_connect; | |
1266 | _Atomic uint32_t v_holdtime; | |
1267 | _Atomic uint32_t v_keepalive; | |
1268 | _Atomic uint32_t v_routeadv; | |
1269 | _Atomic uint32_t v_pmax_restart; | |
1270 | _Atomic uint32_t v_gr_restart; | |
d62a17ae | 1271 | |
1272 | /* Threads. */ | |
1273 | struct thread *t_read; | |
424ab01d | 1274 | struct thread *t_write; |
d62a17ae | 1275 | struct thread *t_start; |
387f984e QY |
1276 | struct thread *t_connect_check_r; |
1277 | struct thread *t_connect_check_w; | |
d62a17ae | 1278 | struct thread *t_connect; |
1279 | struct thread *t_holdtime; | |
d62a17ae | 1280 | struct thread *t_routeadv; |
1281 | struct thread *t_pmax_restart; | |
1282 | struct thread *t_gr_restart; | |
1283 | struct thread *t_gr_stale; | |
56257a44 | 1284 | struct thread *t_generate_updgrp_packets; |
424ab01d | 1285 | struct thread *t_process_packet; |
d62a17ae | 1286 | |
49507a6f | 1287 | /* Thread flags. */ |
0545c373 | 1288 | _Atomic uint32_t thread_flags; |
e9faf4be QY |
1289 | #define PEER_THREAD_WRITES_ON (1U << 0) |
1290 | #define PEER_THREAD_READS_ON (1U << 1) | |
1291 | #define PEER_THREAD_KEEPALIVES_ON (1U << 2) | |
a77e2f4b S |
1292 | #define PEER_THREAD_SUBGRP_ADV_DELAY (1U << 3) |
1293 | ||
d62a17ae | 1294 | /* workqueues */ |
1295 | struct work_queue *clear_node_queue; | |
1296 | ||
a4d82a8a PZ |
1297 | #define PEER_TOTAL_RX(peer) \ |
1298 | atomic_load_explicit(&peer->open_in, memory_order_relaxed) \ | |
1299 | + atomic_load_explicit(&peer->update_in, memory_order_relaxed) \ | |
1300 | + atomic_load_explicit(&peer->notify_in, memory_order_relaxed) \ | |
1301 | + atomic_load_explicit(&peer->refresh_in, \ | |
1302 | memory_order_relaxed) \ | |
1303 | + atomic_load_explicit(&peer->keepalive_in, \ | |
1304 | memory_order_relaxed) \ | |
1305 | + atomic_load_explicit(&peer->dynamic_cap_in, \ | |
1306 | memory_order_relaxed) | |
1307 | ||
1308 | #define PEER_TOTAL_TX(peer) \ | |
1309 | atomic_load_explicit(&peer->open_out, memory_order_relaxed) \ | |
1310 | + atomic_load_explicit(&peer->update_out, \ | |
1311 | memory_order_relaxed) \ | |
1312 | + atomic_load_explicit(&peer->notify_out, \ | |
1313 | memory_order_relaxed) \ | |
1314 | + atomic_load_explicit(&peer->refresh_out, \ | |
1315 | memory_order_relaxed) \ | |
1316 | + atomic_load_explicit(&peer->keepalive_out, \ | |
1317 | memory_order_relaxed) \ | |
1318 | + atomic_load_explicit(&peer->dynamic_cap_out, \ | |
1319 | memory_order_relaxed) | |
0112e9e0 | 1320 | |
d62a17ae | 1321 | /* Statistics field */ |
996c9314 LB |
1322 | _Atomic uint32_t open_in; /* Open message input count */ |
1323 | _Atomic uint32_t open_out; /* Open message output count */ | |
1588f6f4 QY |
1324 | _Atomic uint32_t update_in; /* Update message input count */ |
1325 | _Atomic uint32_t update_out; /* Update message ouput count */ | |
1326 | _Atomic time_t update_time; /* Update message received time. */ | |
1327 | _Atomic uint32_t keepalive_in; /* Keepalive input count */ | |
1328 | _Atomic uint32_t keepalive_out; /* Keepalive output count */ | |
1329 | _Atomic uint32_t notify_in; /* Notify input count */ | |
1330 | _Atomic uint32_t notify_out; /* Notify output count */ | |
1331 | _Atomic uint32_t refresh_in; /* Route Refresh input count */ | |
1332 | _Atomic uint32_t refresh_out; /* Route Refresh output count */ | |
1333 | _Atomic uint32_t dynamic_cap_in; /* Dynamic Capability input count. */ | |
a4d82a8a | 1334 | _Atomic uint32_t dynamic_cap_out; /* Dynamic Capability output count. */ |
d62a17ae | 1335 | |
b4d46cc9 DL |
1336 | uint32_t stat_pfx_filter; |
1337 | uint32_t stat_pfx_aspath_loop; | |
1338 | uint32_t stat_pfx_originator_loop; | |
1339 | uint32_t stat_pfx_cluster_loop; | |
1340 | uint32_t stat_pfx_nh_invalid; | |
1341 | uint32_t stat_pfx_dup_withdraw; | |
1342 | uint32_t stat_upd_7606; /* RFC7606: treat-as-withdraw */ | |
1343 | ||
d62a17ae | 1344 | /* BGP state count */ |
d7c0a89a QY |
1345 | uint32_t established; /* Established */ |
1346 | uint32_t dropped; /* Dropped */ | |
d62a17ae | 1347 | |
1348 | /* Update delay related fields */ | |
d7c0a89a | 1349 | uint8_t update_delay_over; /* When this is set, BGP is no more waiting |
d62a17ae | 1350 | for EOR */ |
1351 | ||
1352 | /* Syncronization list and time. */ | |
1353 | struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX]; | |
1354 | time_t synctime; | |
1588f6f4 QY |
1355 | /* timestamp when the last UPDATE msg was written */ |
1356 | _Atomic time_t last_write; | |
1357 | /* timestamp when the last msg was written */ | |
1358 | _Atomic time_t last_update; | |
d62a17ae | 1359 | |
d62a17ae | 1360 | /* Notify data. */ |
1361 | struct bgp_notify notify; | |
1362 | ||
d62a17ae | 1363 | /* Filter structure. */ |
1364 | struct bgp_filter filter[AFI_MAX][SAFI_MAX]; | |
1365 | ||
70ee29b4 PM |
1366 | /* |
1367 | * Parallel array to filter that indicates whether each filter | |
1368 | * originates from a peer-group or if it is config that is specific to | |
1369 | * this individual peer. If a filter is set independent of the | |
1370 | * peer-group the appropriate bit should be set here. If this peer is a | |
1371 | * peer-group, this memory region should be all zeros. The assumption | |
1372 | * is that the default state for all flags is unset. Due to filters | |
1373 | * having a direction (e.g. in/out/...), this array has a third | |
1374 | * dimension for storing the overrides independently per direction. | |
1375 | * | |
1376 | * Notes: | |
1377 | * - if a filter for an individual peer is unset, the corresponding | |
1378 | * override flag is unset and the peer is considered to be back in | |
1379 | * sync with the peer-group. | |
1380 | * - This does *not* contain the filter values, rather it contains | |
1381 | * whether the filter in filter (struct bgp_filter) is peer-specific. | |
1382 | */ | |
73b1082e | 1383 | uint8_t filter_override[AFI_MAX][SAFI_MAX][FILTER_MAX]; |
e9faf4be QY |
1384 | #define PEER_FT_DISTRIBUTE_LIST (1U << 0) /* distribute-list */ |
1385 | #define PEER_FT_FILTER_LIST (1U << 1) /* filter-list */ | |
1386 | #define PEER_FT_PREFIX_LIST (1U << 2) /* prefix-list */ | |
1387 | #define PEER_FT_ROUTE_MAP (1U << 3) /* route-map */ | |
1388 | #define PEER_FT_UNSUPPRESS_MAP (1U << 4) /* unsuppress-map */ | |
7f7940e6 | 1389 | #define PEER_FT_ADVERTISE_MAP (1U << 5) /* advertise-map */ |
70ee29b4 | 1390 | |
d62a17ae | 1391 | /* ORF Prefix-list */ |
1392 | struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX]; | |
1393 | ||
1394 | /* Text description of last attribute rcvd */ | |
1395 | char rcvd_attr_str[BUFSIZ]; | |
1396 | ||
1397 | /* Track if we printed the attribute in debugs */ | |
1398 | int rcvd_attr_printed; | |
1399 | ||
9cbd06e0 | 1400 | /* Accepted prefix count */ |
a0a87037 | 1401 | uint32_t pcount[AFI_MAX][SAFI_MAX]; |
d62a17ae | 1402 | |
1403 | /* Max prefix count. */ | |
a0a87037 | 1404 | uint32_t pmax[AFI_MAX][SAFI_MAX]; |
d7c0a89a QY |
1405 | uint8_t pmax_threshold[AFI_MAX][SAFI_MAX]; |
1406 | uint16_t pmax_restart[AFI_MAX][SAFI_MAX]; | |
e0701b79 | 1407 | #define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75 |
718e3744 | 1408 | |
fde246e8 DA |
1409 | /* Send prefix count. */ |
1410 | uint32_t pmax_out[AFI_MAX][SAFI_MAX]; | |
1411 | ||
d62a17ae | 1412 | /* allowas-in. */ |
1413 | char allowas_in[AFI_MAX][SAFI_MAX]; | |
ac41b2a2 | 1414 | |
d62a17ae | 1415 | /* weight */ |
1416 | unsigned long weight[AFI_MAX][SAFI_MAX]; | |
d93f7ffc | 1417 | |
d62a17ae | 1418 | /* peer reset cause */ |
1a1f4534 | 1419 | uint8_t last_reset; |
e9faf4be QY |
1420 | #define PEER_DOWN_RID_CHANGE 1U /* bgp router-id command */ |
1421 | #define PEER_DOWN_REMOTE_AS_CHANGE 2U /* neighbor remote-as command */ | |
1422 | #define PEER_DOWN_LOCAL_AS_CHANGE 3U /* neighbor local-as command */ | |
1423 | #define PEER_DOWN_CLID_CHANGE 4U /* bgp cluster-id command */ | |
1424 | #define PEER_DOWN_CONFED_ID_CHANGE 5U /* bgp confederation id command */ | |
1425 | #define PEER_DOWN_CONFED_PEER_CHANGE 6U /* bgp confederation peer command */ | |
1426 | #define PEER_DOWN_RR_CLIENT_CHANGE 7U /* neighbor rr-client command */ | |
1427 | #define PEER_DOWN_RS_CLIENT_CHANGE 8U /* neighbor rs-client command */ | |
1428 | #define PEER_DOWN_UPDATE_SOURCE_CHANGE 9U /* neighbor update-source command */ | |
1429 | #define PEER_DOWN_AF_ACTIVATE 10U /* neighbor activate command */ | |
1430 | #define PEER_DOWN_USER_SHUTDOWN 11U /* neighbor shutdown command */ | |
1431 | #define PEER_DOWN_USER_RESET 12U /* clear ip bgp command */ | |
1432 | #define PEER_DOWN_NOTIFY_RECEIVED 13U /* notification received */ | |
1433 | #define PEER_DOWN_NOTIFY_SEND 14U /* notification send */ | |
1434 | #define PEER_DOWN_CLOSE_SESSION 15U /* tcp session close */ | |
1435 | #define PEER_DOWN_NEIGHBOR_DELETE 16U /* neghbor delete */ | |
1436 | #define PEER_DOWN_RMAP_BIND 17U /* neghbor peer-group command */ | |
1437 | #define PEER_DOWN_RMAP_UNBIND 18U /* no neighbor peer-group command */ | |
1438 | #define PEER_DOWN_CAPABILITY_CHANGE 19U /* neighbor capability command */ | |
1439 | #define PEER_DOWN_PASSIVE_CHANGE 20U /* neighbor passive command */ | |
1440 | #define PEER_DOWN_MULTIHOP_CHANGE 21U /* neighbor multihop command */ | |
1441 | #define PEER_DOWN_NSF_CLOSE_SESSION 22U /* NSF tcp session close */ | |
1442 | #define PEER_DOWN_V6ONLY_CHANGE 23U /* if-based peering v6only toggled */ | |
1443 | #define PEER_DOWN_BFD_DOWN 24U /* BFD down */ | |
1444 | #define PEER_DOWN_IF_DOWN 25U /* Interface down */ | |
1445 | #define PEER_DOWN_NBR_ADDR_DEL 26U /* Peer address lost */ | |
1446 | #define PEER_DOWN_WAITING_NHT 27U /* Waiting for NHT to resolve */ | |
1447 | #define PEER_DOWN_NBR_ADDR 28U /* Waiting for peer IPv6 IP Addr */ | |
1448 | #define PEER_DOWN_VRF_UNINIT 29U /* Associated VRF is not init yet */ | |
1449 | #define PEER_DOWN_NOAFI_ACTIVATED 30U /* No AFI/SAFI activated for peer */ | |
1450 | #define PEER_DOWN_AS_SETS_REJECT 31U /* Reject routes with AS_SET */ | |
1451 | #define PEER_DOWN_WAITING_OPEN 32U /* Waiting for open to succeed */ | |
1452 | #define PEER_DOWN_PFX_COUNT 33U /* Reached received prefix count */ | |
1e91f1d1 DS |
1453 | /* |
1454 | * Remember to update peer_down_str in bgp_fsm.c when you add | |
1455 | * a new value to the last_reset reason | |
1456 | */ | |
1457 | ||
1a1f4534 | 1458 | size_t last_reset_cause_size; |
d7c0a89a | 1459 | uint8_t last_reset_cause[BGP_MAX_PACKET_SIZE]; |
e0701b79 | 1460 | |
d62a17ae | 1461 | /* The kind of route-map Flags.*/ |
a3116965 | 1462 | uint16_t rmap_type; |
e9faf4be QY |
1463 | #define PEER_RMAP_TYPE_IN (1U << 0) /* neighbor route-map in */ |
1464 | #define PEER_RMAP_TYPE_OUT (1U << 1) /* neighbor route-map out */ | |
1465 | #define PEER_RMAP_TYPE_NETWORK (1U << 2) /* network route-map */ | |
1466 | #define PEER_RMAP_TYPE_REDISTRIBUTE (1U << 3) /* redistribute route-map */ | |
1467 | #define PEER_RMAP_TYPE_DEFAULT (1U << 4) /* default-originate route-map */ | |
1468 | #define PEER_RMAP_TYPE_NOSET (1U << 5) /* not allow to set commands */ | |
1469 | #define PEER_RMAP_TYPE_IMPORT (1U << 6) /* neighbor route-map import */ | |
1470 | #define PEER_RMAP_TYPE_EXPORT (1U << 7) /* neighbor route-map export */ | |
1471 | #define PEER_RMAP_TYPE_AGGREGATE (1U << 8) /* aggregate-address route-map */ | |
6410e93a | 1472 | |
d62a17ae | 1473 | /* peer specific BFD information */ |
1474 | struct bfd_info *bfd_info; | |
04b6bdc0 | 1475 | |
d62a17ae | 1476 | /* hostname and domainname advertised by host */ |
1477 | char *hostname; | |
1478 | char *domainname; | |
19df7279 | 1479 | |
2b31007c RZ |
1480 | /* Sender side AS path loop detection. */ |
1481 | bool as_path_loop_detection; | |
1482 | ||
7f7940e6 | 1483 | /* Conditional advertisement */ |
c385f82a MK |
1484 | bool advmap_config_change[AFI_MAX][SAFI_MAX]; |
1485 | bool advmap_table_change; | |
7f7940e6 | 1486 | |
d62a17ae | 1487 | QOBJ_FIELDS |
718e3744 | 1488 | }; |
19df7279 | 1489 | DECLARE_QOBJ_TYPE(peer) |
718e3744 | 1490 | |
598ce6bd | 1491 | /* Inherit peer attribute from peer-group. */ |
e7103a96 PM |
1492 | #define PEER_ATTR_INHERIT(peer, group, attr) \ |
1493 | ((peer)->attr = (group)->conf->attr) | |
1494 | #define PEER_STR_ATTR_INHERIT(peer, group, attr, mt) \ | |
598ce6bd | 1495 | do { \ |
e1b36e13 | 1496 | XFREE(mt, (peer)->attr); \ |
e7103a96 PM |
1497 | if ((group)->conf->attr) \ |
1498 | (peer)->attr = XSTRDUP(mt, (group)->conf->attr); \ | |
598ce6bd PM |
1499 | else \ |
1500 | (peer)->attr = NULL; \ | |
1501 | } while (0) | |
a14810f4 PM |
1502 | #define PEER_SU_ATTR_INHERIT(peer, group, attr) \ |
1503 | do { \ | |
1504 | if ((peer)->attr) \ | |
1505 | sockunion_free((peer)->attr); \ | |
1506 | if ((group)->conf->attr) \ | |
1507 | (peer)->attr = sockunion_dup((group)->conf->attr); \ | |
1508 | else \ | |
1509 | (peer)->attr = NULL; \ | |
1510 | } while (0) | |
598ce6bd | 1511 | |
ad4cbda1 | 1512 | /* Check if suppress start/restart of sessions to peer. */ |
d62a17ae | 1513 | #define BGP_PEER_START_SUPPRESSED(P) \ |
1514 | (CHECK_FLAG((P)->flags, PEER_FLAG_SHUTDOWN) \ | |
cb9196e7 DS |
1515 | || CHECK_FLAG((P)->sflags, PEER_STATUS_PREFIX_OVERFLOW) \ |
1516 | || CHECK_FLAG((P)->bgp->flags, BGP_FLAG_SHUTDOWN)) | |
ad4cbda1 | 1517 | |
a77e2f4b S |
1518 | #define PEER_ROUTE_ADV_DELAY(peer) \ |
1519 | (CHECK_FLAG(peer->thread_flags, PEER_THREAD_SUBGRP_ADV_DELAY)) | |
c208c586 | 1520 | |
0df7c91f PJ |
1521 | #define PEER_PASSWORD_MINLEN (1) |
1522 | #define PEER_PASSWORD_MAXLEN (80) | |
1523 | ||
718e3744 | 1524 | /* This structure's member directly points incoming packet data |
1525 | stream. */ | |
d62a17ae | 1526 | struct bgp_nlri { |
1527 | /* AFI. */ | |
a46a2e9b | 1528 | uint16_t afi; /* iana_afi_t */ |
718e3744 | 1529 | |
d62a17ae | 1530 | /* SAFI. */ |
a46a2e9b | 1531 | uint8_t safi; /* iana_safi_t */ |
718e3744 | 1532 | |
d62a17ae | 1533 | /* Pointer to NLRI byte stream. */ |
d7c0a89a | 1534 | uint8_t *nlri; |
718e3744 | 1535 | |
d62a17ae | 1536 | /* Length of whole NLRI. */ |
1537 | bgp_size_t length; | |
718e3744 | 1538 | }; |
1539 | ||
1540 | /* BGP versions. */ | |
1541 | #define BGP_VERSION_4 4 | |
718e3744 | 1542 | |
1543 | /* Default BGP port number. */ | |
1544 | #define BGP_PORT_DEFAULT 179 | |
1545 | ||
718e3744 | 1546 | /* BGP minimum message size. */ |
1547 | #define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10) | |
1548 | #define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4) | |
1549 | #define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2) | |
1550 | #define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0) | |
1551 | #define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4) | |
1552 | #define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3) | |
1553 | ||
1554 | /* BGP message types. */ | |
1555 | #define BGP_MSG_OPEN 1 | |
1556 | #define BGP_MSG_UPDATE 2 | |
1557 | #define BGP_MSG_NOTIFY 3 | |
1558 | #define BGP_MSG_KEEPALIVE 4 | |
1559 | #define BGP_MSG_ROUTE_REFRESH_NEW 5 | |
1560 | #define BGP_MSG_CAPABILITY 6 | |
1561 | #define BGP_MSG_ROUTE_REFRESH_OLD 128 | |
1562 | ||
1563 | /* BGP open optional parameter. */ | |
1564 | #define BGP_OPEN_OPT_AUTH 1 | |
1565 | #define BGP_OPEN_OPT_CAP 2 | |
1566 | ||
1567 | /* BGP4 attribute type codes. */ | |
1568 | #define BGP_ATTR_ORIGIN 1 | |
1569 | #define BGP_ATTR_AS_PATH 2 | |
1570 | #define BGP_ATTR_NEXT_HOP 3 | |
1571 | #define BGP_ATTR_MULTI_EXIT_DISC 4 | |
1572 | #define BGP_ATTR_LOCAL_PREF 5 | |
1573 | #define BGP_ATTR_ATOMIC_AGGREGATE 6 | |
1574 | #define BGP_ATTR_AGGREGATOR 7 | |
1575 | #define BGP_ATTR_COMMUNITIES 8 | |
1576 | #define BGP_ATTR_ORIGINATOR_ID 9 | |
1577 | #define BGP_ATTR_CLUSTER_LIST 10 | |
1578 | #define BGP_ATTR_DPA 11 | |
1579 | #define BGP_ATTR_ADVERTISER 12 | |
1580 | #define BGP_ATTR_RCID_PATH 13 | |
1581 | #define BGP_ATTR_MP_REACH_NLRI 14 | |
1582 | #define BGP_ATTR_MP_UNREACH_NLRI 15 | |
1583 | #define BGP_ATTR_EXT_COMMUNITIES 16 | |
0b2aa3a0 PJ |
1584 | #define BGP_ATTR_AS4_PATH 17 |
1585 | #define BGP_ATTR_AS4_AGGREGATOR 18 | |
41367172 | 1586 | #define BGP_ATTR_AS_PATHLIMIT 21 |
a21bd7a3 | 1587 | #define BGP_ATTR_PMSI_TUNNEL 22 |
f4c89855 | 1588 | #define BGP_ATTR_ENCAP 23 |
9a659715 | 1589 | #define BGP_ATTR_IPV6_EXT_COMMUNITIES 25 |
57d187bc | 1590 | #define BGP_ATTR_LARGE_COMMUNITIES 32 |
c5a543b4 | 1591 | #define BGP_ATTR_PREFIX_SID 40 |
ef3e0d04 | 1592 | #define BGP_ATTR_SRTE_COLOR 51 |
1e20238a | 1593 | #ifdef ENABLE_BGP_VNC_ATTR |
65efcfce LB |
1594 | #define BGP_ATTR_VNC 255 |
1595 | #endif | |
718e3744 | 1596 | |
1597 | /* BGP update origin. */ | |
1598 | #define BGP_ORIGIN_IGP 0 | |
1599 | #define BGP_ORIGIN_EGP 1 | |
1600 | #define BGP_ORIGIN_INCOMPLETE 2 | |
229757f1 | 1601 | #define BGP_ORIGIN_UNSPECIFIED 255 |
718e3744 | 1602 | |
1603 | /* BGP notify message codes. */ | |
1604 | #define BGP_NOTIFY_HEADER_ERR 1 | |
1605 | #define BGP_NOTIFY_OPEN_ERR 2 | |
1606 | #define BGP_NOTIFY_UPDATE_ERR 3 | |
1607 | #define BGP_NOTIFY_HOLD_ERR 4 | |
1608 | #define BGP_NOTIFY_FSM_ERR 5 | |
1609 | #define BGP_NOTIFY_CEASE 6 | |
1610 | #define BGP_NOTIFY_CAPABILITY_ERR 7 | |
718e3744 | 1611 | |
3893aeee DA |
1612 | /* Subcodes for BGP Finite State Machine Error */ |
1613 | #define BGP_NOTIFY_FSM_ERR_SUBCODE_UNSPECIFIC 0 | |
1614 | #define BGP_NOTIFY_FSM_ERR_SUBCODE_OPENSENT 1 | |
1615 | #define BGP_NOTIFY_FSM_ERR_SUBCODE_OPENCONFIRM 2 | |
1616 | #define BGP_NOTIFY_FSM_ERR_SUBCODE_ESTABLISHED 3 | |
1617 | ||
4b4e07d2 DT |
1618 | #define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0 |
1619 | ||
718e3744 | 1620 | /* BGP_NOTIFY_HEADER_ERR sub codes. */ |
1621 | #define BGP_NOTIFY_HEADER_NOT_SYNC 1 | |
1622 | #define BGP_NOTIFY_HEADER_BAD_MESLEN 2 | |
1623 | #define BGP_NOTIFY_HEADER_BAD_MESTYPE 3 | |
718e3744 | 1624 | |
1625 | /* BGP_NOTIFY_OPEN_ERR sub codes. */ | |
14051b36 | 1626 | #define BGP_NOTIFY_OPEN_MALFORMED_ATTR 0 |
718e3744 | 1627 | #define BGP_NOTIFY_OPEN_UNSUP_VERSION 1 |
1628 | #define BGP_NOTIFY_OPEN_BAD_PEER_AS 2 | |
1629 | #define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3 | |
1630 | #define BGP_NOTIFY_OPEN_UNSUP_PARAM 4 | |
1631 | #define BGP_NOTIFY_OPEN_AUTH_FAILURE 5 | |
1632 | #define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6 | |
1633 | #define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7 | |
718e3744 | 1634 | |
1635 | /* BGP_NOTIFY_UPDATE_ERR sub codes. */ | |
1636 | #define BGP_NOTIFY_UPDATE_MAL_ATTR 1 | |
1637 | #define BGP_NOTIFY_UPDATE_UNREC_ATTR 2 | |
1638 | #define BGP_NOTIFY_UPDATE_MISS_ATTR 3 | |
1639 | #define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4 | |
1640 | #define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5 | |
1641 | #define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6 | |
1642 | #define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7 | |
1643 | #define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8 | |
1644 | #define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9 | |
1645 | #define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10 | |
1646 | #define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11 | |
718e3744 | 1647 | |
4b4e07d2 | 1648 | /* BGP_NOTIFY_CEASE sub codes (RFC 4486). */ |
718e3744 | 1649 | #define BGP_NOTIFY_CEASE_MAX_PREFIX 1 |
1650 | #define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2 | |
1651 | #define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3 | |
1652 | #define BGP_NOTIFY_CEASE_ADMIN_RESET 4 | |
1653 | #define BGP_NOTIFY_CEASE_CONNECT_REJECT 5 | |
1654 | #define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6 | |
545acafb | 1655 | #define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7 |
1656 | #define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8 | |
718e3744 | 1657 | |
1658 | /* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */ | |
1659 | #define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1 | |
1660 | #define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2 | |
1661 | #define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3 | |
718e3744 | 1662 | |
718e3744 | 1663 | /* BGP timers default value. */ |
5ca5f1c8 | 1664 | #define BGP_INIT_START_TIMER 1 |
5d5393b9 DL |
1665 | /* The following 3 are RFC defaults that are overridden in bgp_vty.c with |
1666 | * version-/profile-specific values. The values here do not matter, they only | |
1667 | * exist to provide a clear layering separation between core and CLI. | |
1668 | */ | |
1669 | #define BGP_DEFAULT_HOLDTIME 180 | |
1670 | #define BGP_DEFAULT_KEEPALIVE 60 | |
1671 | #define BGP_DEFAULT_CONNECT_RETRY 120 | |
1672 | ||
12179ba3 | 1673 | #define BGP_DEFAULT_EBGP_ROUTEADV 0 |
1670355a | 1674 | #define BGP_DEFAULT_IBGP_ROUTEADV 0 |
718e3744 | 1675 | |
1676 | /* BGP default local preference. */ | |
1677 | #define BGP_DEFAULT_LOCAL_PREF 100 | |
1678 | ||
7f323236 DW |
1679 | /* BGP local-preference to send when 'bgp graceful-shutdown' |
1680 | * is configured */ | |
1681 | #define BGP_GSHUT_LOCAL_PREF 0 | |
1682 | ||
3f9c7369 DS |
1683 | /* BGP default subgroup packet queue max . */ |
1684 | #define BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX 40 | |
1685 | ||
538621f2 | 1686 | /* BGP graceful restart */ |
1687 | #define BGP_DEFAULT_RESTART_TIME 120 | |
1688 | #define BGP_DEFAULT_STALEPATH_TIME 360 | |
cfd47646 | 1689 | #define BGP_DEFAULT_SELECT_DEFERRAL_TIME 360 |
2d3dd828 | 1690 | #define BGP_DEFAULT_RIB_STALE_TIME 500 |
c208c586 | 1691 | #define BGP_DEFAULT_UPDATE_ADVERTISEMENT_TIME 1 |
538621f2 | 1692 | |
718e3744 | 1693 | /* BGP uptime string length. */ |
1694 | #define BGP_UPTIME_LEN 25 | |
1695 | ||
1696 | /* Default configuration settings for bgpd. */ | |
1697 | #define BGP_VTY_PORT 2605 | |
718e3744 | 1698 | #define BGP_DEFAULT_CONFIG "bgpd.conf" |
1699 | ||
f14e6fdb DS |
1700 | /* BGP Dynamic Neighbors feature */ |
1701 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT 100 | |
1702 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_MIN 1 | |
1703 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_MAX 5000 | |
1704 | ||
718e3744 | 1705 | /* Flag for peer_clear_soft(). */ |
d62a17ae | 1706 | enum bgp_clear_type { |
1707 | BGP_CLEAR_SOFT_NONE, | |
1708 | BGP_CLEAR_SOFT_OUT, | |
1709 | BGP_CLEAR_SOFT_IN, | |
1710 | BGP_CLEAR_SOFT_BOTH, | |
1711 | BGP_CLEAR_SOFT_IN_ORF_PREFIX | |
718e3744 | 1712 | }; |
1713 | ||
1714 | /* Macros. */ | |
424ab01d | 1715 | #define BGP_INPUT(P) ((P)->curr) |
2d34fb80 | 1716 | #define BGP_INPUT_PNT(P) (stream_pnt(BGP_INPUT(P))) |
d62a17ae | 1717 | #define BGP_IS_VALID_STATE_FOR_NOTIF(S) \ |
1718 | (((S) == OpenSent) || ((S) == OpenConfirm) || ((S) == Established)) | |
718e3744 | 1719 | |
718e3744 | 1720 | /* BGP error codes. */ |
1721 | #define BGP_SUCCESS 0 | |
5d5393b9 | 1722 | #define BGP_CREATED 1 |
718e3744 | 1723 | #define BGP_ERR_INVALID_VALUE -1 |
1724 | #define BGP_ERR_INVALID_FLAG -2 | |
1725 | #define BGP_ERR_INVALID_AS -3 | |
1726 | #define BGP_ERR_INVALID_BGP -4 | |
1727 | #define BGP_ERR_PEER_GROUP_MEMBER -5 | |
c8560b44 DW |
1728 | #define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -7 |
1729 | #define BGP_ERR_PEER_GROUP_CANT_CHANGE -8 | |
1730 | #define BGP_ERR_PEER_GROUP_MISMATCH -9 | |
1731 | #define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -10 | |
c8560b44 DW |
1732 | #define BGP_ERR_AS_MISMATCH -12 |
1733 | #define BGP_ERR_PEER_FLAG_CONFLICT -13 | |
1734 | #define BGP_ERR_PEER_GROUP_SHUTDOWN -14 | |
1735 | #define BGP_ERR_PEER_FILTER_CONFLICT -15 | |
1736 | #define BGP_ERR_NOT_INTERNAL_PEER -16 | |
1737 | #define BGP_ERR_REMOVE_PRIVATE_AS -17 | |
1738 | #define BGP_ERR_AF_UNCONFIGURED -18 | |
1739 | #define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -19 | |
1740 | #define BGP_ERR_INSTANCE_MISMATCH -20 | |
1741 | #define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -21 | |
1742 | #define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -22 | |
1743 | #define BGP_ERR_TCPSIG_FAILED -23 | |
1744 | #define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -24 | |
1745 | #define BGP_ERR_NO_IBGP_WITH_TTLHACK -25 | |
1746 | #define BGP_ERR_NO_INTERFACE_CONFIG -26 | |
1747 | #define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS -27 | |
1748 | #define BGP_ERR_AS_OVERRIDE -28 | |
1749 | #define BGP_ERR_INVALID_DYNAMIC_NEIGHBORS_LIMIT -29 | |
1750 | #define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_EXISTS -30 | |
1751 | #define BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND -31 | |
1752 | #define BGP_ERR_INVALID_FOR_DYNAMIC_PEER -32 | |
1753 | #define BGP_ERR_MAX -33 | |
63fa10b5 | 1754 | #define BGP_ERR_INVALID_FOR_DIRECT_PEER -34 |
9bedbb1e | 1755 | #define BGP_ERR_PEER_SAFI_CONFLICT -35 |
718e3744 | 1756 | |
b0965c44 | 1757 | /* BGP GR ERRORS */ |
b0965c44 | 1758 | #define BGP_ERR_GR_INVALID_CMD -36 |
1759 | #define BGP_ERR_GR_OPERATION_FAILED -37 | |
1760 | #define BGP_GR_NO_OPERATION -38 | |
1761 | ||
3f9c7369 DS |
1762 | /* |
1763 | * Enumeration of different policy kinds a peer can be configured with. | |
1764 | */ | |
d62a17ae | 1765 | typedef enum { |
1766 | BGP_POLICY_ROUTE_MAP, | |
1767 | BGP_POLICY_FILTER_LIST, | |
1768 | BGP_POLICY_PREFIX_LIST, | |
1769 | BGP_POLICY_DISTRIBUTE_LIST, | |
3f9c7369 DS |
1770 | } bgp_policy_type_e; |
1771 | ||
dcc68b5e MS |
1772 | /* peer_flag_change_type. */ |
1773 | enum peer_change_type { | |
1774 | peer_change_none, | |
1775 | peer_change_reset, | |
1776 | peer_change_reset_in, | |
1777 | peer_change_reset_out, | |
1778 | }; | |
1779 | ||
718e3744 | 1780 | extern struct bgp_master *bm; |
37fe7731 | 1781 | extern unsigned int multipath_num; |
718e3744 | 1782 | |
718e3744 | 1783 | /* Prototypes. */ |
d62a17ae | 1784 | extern void bgp_terminate(void); |
1785 | extern void bgp_reset(void); | |
1786 | extern time_t bgp_clock(void); | |
1787 | extern void bgp_zclient_reset(void); | |
d62a17ae | 1788 | extern struct bgp *bgp_get_default(void); |
1789 | extern struct bgp *bgp_lookup(as_t, const char *); | |
1790 | extern struct bgp *bgp_lookup_by_name(const char *); | |
1791 | extern struct bgp *bgp_lookup_by_vrf_id(vrf_id_t); | |
e2f3a930 T |
1792 | extern struct bgp *bgp_get_evpn(void); |
1793 | extern void bgp_set_evpn(struct bgp *bgp); | |
d62a17ae | 1794 | extern struct peer *peer_lookup(struct bgp *, union sockunion *); |
1795 | extern struct peer *peer_lookup_by_conf_if(struct bgp *, const char *); | |
04b6bdc0 | 1796 | extern struct peer *peer_lookup_by_hostname(struct bgp *, const char *); |
d62a17ae | 1797 | extern void bgp_peer_conf_if_to_su_update(struct peer *); |
ffd0c037 | 1798 | extern int peer_group_listen_range_del(struct peer_group *, struct prefix *); |
d62a17ae | 1799 | extern struct peer_group *peer_group_lookup(struct bgp *, const char *); |
1800 | extern struct peer_group *peer_group_get(struct bgp *, const char *); | |
1801 | extern struct peer *peer_create_bind_dynamic_neighbor(struct bgp *, | |
1802 | union sockunion *, | |
1803 | struct peer_group *); | |
1804 | extern struct prefix * | |
1805 | peer_group_lookup_dynamic_neighbor_range(struct peer_group *, struct prefix *); | |
1806 | extern struct peer_group *peer_group_lookup_dynamic_neighbor(struct bgp *, | |
1807 | struct prefix *, | |
1808 | struct prefix **); | |
1809 | extern struct peer *peer_lookup_dynamic_neighbor(struct bgp *, | |
1810 | union sockunion *); | |
28066f4b DS |
1811 | |
1812 | /* | |
1813 | * Peers are incredibly easy to memory leak | |
1814 | * due to the various ways that they are actually used | |
1815 | * Provide some functionality to debug locks and unlocks | |
1816 | */ | |
1817 | extern struct peer *peer_lock_with_caller(const char *, struct peer *); | |
1818 | extern struct peer *peer_unlock_with_caller(const char *, struct peer *); | |
1819 | #define peer_unlock(A) peer_unlock_with_caller(__FUNCTION__, (A)) | |
1820 | #define peer_lock(B) peer_lock_with_caller(__FUNCTION__, (B)) | |
1821 | ||
d62a17ae | 1822 | extern bgp_peer_sort_t peer_sort(struct peer *peer); |
bf0d28dc DS |
1823 | extern bgp_peer_sort_t peer_sort_lookup(struct peer *peer); |
1824 | ||
3dc339cd DA |
1825 | extern bool peer_active(struct peer *); |
1826 | extern bool peer_active_nego(struct peer *); | |
d62a17ae | 1827 | extern void bgp_recalculate_all_bestpaths(struct bgp *bgp); |
a80beece | 1828 | extern struct peer *peer_create(union sockunion *, const char *, struct bgp *, |
d62a17ae | 1829 | as_t, as_t, int, afi_t, safi_t, |
1830 | struct peer_group *); | |
1831 | extern struct peer *peer_create_accept(struct bgp *); | |
1832 | extern void peer_xfer_config(struct peer *dst, struct peer *src); | |
94d4c685 DS |
1833 | extern char *peer_uptime(time_t uptime2, char *buf, size_t len, bool use_json, |
1834 | json_object *json); | |
856ca177 | 1835 | |
d62a17ae | 1836 | extern int bgp_config_write(struct vty *); |
6b0655a2 | 1837 | |
c2d020ad DS |
1838 | extern void bgp_master_init(struct thread_master *master, |
1839 | const int buffer_size); | |
718e3744 | 1840 | |
f533be73 | 1841 | extern void bgp_init(unsigned short instance); |
419dfe6a | 1842 | extern void bgp_pthreads_run(void); |
2d4ee774 | 1843 | extern void bgp_pthreads_finish(void); |
d62a17ae | 1844 | extern void bgp_route_map_init(void); |
1845 | extern void bgp_session_reset(struct peer *); | |
718e3744 | 1846 | |
d62a17ae | 1847 | extern int bgp_option_set(int); |
1848 | extern int bgp_option_unset(int); | |
1849 | extern int bgp_option_check(int); | |
718e3744 | 1850 | |
c163f297 DS |
1851 | /* set the bgp no-rib option during runtime and remove installed routes */ |
1852 | extern void bgp_option_norib_set_runtime(void); | |
1853 | ||
1854 | /* unset the bgp no-rib option during runtime and reset all peers */ | |
1855 | extern void bgp_option_norib_unset_runtime(void); | |
1856 | ||
d62a17ae | 1857 | extern int bgp_get(struct bgp **, as_t *, const char *, enum bgp_instance_type); |
1858 | extern void bgp_instance_up(struct bgp *); | |
1859 | extern void bgp_instance_down(struct bgp *); | |
1860 | extern int bgp_delete(struct bgp *); | |
718e3744 | 1861 | |
e5619c28 PG |
1862 | extern int bgp_handle_socket(struct bgp *bgp, struct vrf *vrf, |
1863 | vrf_id_t old_vrf_id, bool create); | |
1864 | ||
d62a17ae | 1865 | extern void bgp_router_id_zebra_bump(vrf_id_t, const struct prefix *); |
3dc339cd | 1866 | extern void bgp_router_id_static_set(struct bgp *, struct in_addr); |
718e3744 | 1867 | |
c208c586 | 1868 | extern void bgp_suppress_fib_pending_set(struct bgp *bgp, bool set); |
d62a17ae | 1869 | extern int bgp_cluster_id_set(struct bgp *, struct in_addr *); |
1870 | extern int bgp_cluster_id_unset(struct bgp *); | |
718e3744 | 1871 | |
ff8a8a7a | 1872 | extern void bgp_confederation_id_set(struct bgp *, as_t); |
d62a17ae | 1873 | extern int bgp_confederation_id_unset(struct bgp *); |
3dc339cd | 1874 | extern bool bgp_confederation_peers_check(struct bgp *, as_t); |
718e3744 | 1875 | |
d62a17ae | 1876 | extern int bgp_confederation_peers_add(struct bgp *, as_t); |
1877 | extern int bgp_confederation_peers_remove(struct bgp *, as_t); | |
718e3744 | 1878 | |
3dc339cd DA |
1879 | extern void bgp_timers_set(struct bgp *, uint32_t keepalive, uint32_t holdtime, |
1880 | uint32_t connect_retry); | |
1881 | extern void bgp_timers_unset(struct bgp *); | |
718e3744 | 1882 | |
d7c0a89a | 1883 | extern int bgp_default_local_preference_set(struct bgp *, uint32_t); |
d62a17ae | 1884 | extern int bgp_default_local_preference_unset(struct bgp *); |
718e3744 | 1885 | |
d7c0a89a | 1886 | extern int bgp_default_subgroup_pkt_queue_max_set(struct bgp *bgp, uint32_t); |
d62a17ae | 1887 | extern int bgp_default_subgroup_pkt_queue_max_unset(struct bgp *bgp); |
3f9c7369 | 1888 | |
d62a17ae | 1889 | extern int bgp_listen_limit_set(struct bgp *, int); |
1890 | extern int bgp_listen_limit_unset(struct bgp *); | |
f14e6fdb | 1891 | |
3dc339cd DA |
1892 | extern bool bgp_update_delay_active(struct bgp *); |
1893 | extern bool bgp_update_delay_configured(struct bgp *); | |
318cac96 | 1894 | extern int bgp_afi_safi_peer_exists(struct bgp *bgp, afi_t afi, safi_t safi); |
d62a17ae | 1895 | extern void peer_as_change(struct peer *, as_t, int); |
1896 | extern int peer_remote_as(struct bgp *, union sockunion *, const char *, as_t *, | |
1897 | int, afi_t, safi_t); | |
1898 | extern int peer_group_remote_as(struct bgp *, const char *, as_t *, int); | |
1899 | extern int peer_delete(struct peer *peer); | |
3dc339cd | 1900 | extern void peer_notify_unconfig(struct peer *peer); |
d62a17ae | 1901 | extern int peer_group_delete(struct peer_group *); |
1902 | extern int peer_group_remote_as_delete(struct peer_group *); | |
f14e6fdb | 1903 | extern int peer_group_listen_range_add(struct peer_group *, struct prefix *); |
3dc339cd | 1904 | extern void peer_group_notify_unconfig(struct peer_group *group); |
718e3744 | 1905 | |
d62a17ae | 1906 | extern int peer_activate(struct peer *, afi_t, safi_t); |
1907 | extern int peer_deactivate(struct peer *, afi_t, safi_t); | |
718e3744 | 1908 | |
d62a17ae | 1909 | extern int peer_group_bind(struct bgp *, union sockunion *, struct peer *, |
1910 | struct peer_group *, as_t *); | |
718e3744 | 1911 | |
d7c0a89a QY |
1912 | extern int peer_flag_set(struct peer *, uint32_t); |
1913 | extern int peer_flag_unset(struct peer *, uint32_t); | |
9fb964de | 1914 | extern void peer_flag_inherit(struct peer *peer, uint32_t flag); |
718e3744 | 1915 | |
d7c0a89a QY |
1916 | extern int peer_af_flag_set(struct peer *, afi_t, safi_t, uint32_t); |
1917 | extern int peer_af_flag_unset(struct peer *, afi_t, safi_t, uint32_t); | |
1918 | extern int peer_af_flag_check(struct peer *, afi_t, safi_t, uint32_t); | |
cf9ac8bf PM |
1919 | extern void peer_af_flag_inherit(struct peer *peer, afi_t afi, safi_t safi, |
1920 | uint32_t flag); | |
dcc68b5e MS |
1921 | extern void peer_change_action(struct peer *peer, afi_t afi, safi_t safi, |
1922 | enum peer_change_type type); | |
718e3744 | 1923 | |
d62a17ae | 1924 | extern int peer_ebgp_multihop_set(struct peer *, int); |
1925 | extern int peer_ebgp_multihop_unset(struct peer *); | |
1926 | extern int is_ebgp_multihop_configured(struct peer *peer); | |
718e3744 | 1927 | |
3dc339cd DA |
1928 | extern void peer_description_set(struct peer *, const char *); |
1929 | extern void peer_description_unset(struct peer *); | |
718e3744 | 1930 | |
d62a17ae | 1931 | extern int peer_update_source_if_set(struct peer *, const char *); |
1932 | extern int peer_update_source_addr_set(struct peer *, const union sockunion *); | |
1933 | extern int peer_update_source_unset(struct peer *); | |
718e3744 | 1934 | |
1de27621 DA |
1935 | extern int peer_default_originate_set(struct peer *peer, afi_t afi, safi_t safi, |
1936 | const char *rmap, | |
1937 | struct route_map *route_map); | |
d62a17ae | 1938 | extern int peer_default_originate_unset(struct peer *, afi_t, safi_t); |
718e3744 | 1939 | |
3dc339cd DA |
1940 | extern void peer_port_set(struct peer *, uint16_t); |
1941 | extern void peer_port_unset(struct peer *); | |
718e3744 | 1942 | |
d7c0a89a | 1943 | extern int peer_weight_set(struct peer *, afi_t, safi_t, uint16_t); |
d62a17ae | 1944 | extern int peer_weight_unset(struct peer *, afi_t, safi_t); |
718e3744 | 1945 | |
d7c0a89a QY |
1946 | extern int peer_timers_set(struct peer *, uint32_t keepalive, |
1947 | uint32_t holdtime); | |
d62a17ae | 1948 | extern int peer_timers_unset(struct peer *); |
718e3744 | 1949 | |
d7c0a89a | 1950 | extern int peer_timers_connect_set(struct peer *, uint32_t); |
d62a17ae | 1951 | extern int peer_timers_connect_unset(struct peer *); |
718e3744 | 1952 | |
d7c0a89a | 1953 | extern int peer_advertise_interval_set(struct peer *, uint32_t); |
d62a17ae | 1954 | extern int peer_advertise_interval_unset(struct peer *); |
718e3744 | 1955 | |
d62a17ae | 1956 | extern void peer_interface_set(struct peer *, const char *); |
1957 | extern void peer_interface_unset(struct peer *); | |
718e3744 | 1958 | |
d62a17ae | 1959 | extern int peer_distribute_set(struct peer *, afi_t, safi_t, int, const char *); |
1960 | extern int peer_distribute_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1961 | |
d62a17ae | 1962 | extern int peer_allowas_in_set(struct peer *, afi_t, safi_t, int, int); |
1963 | extern int peer_allowas_in_unset(struct peer *, afi_t, safi_t); | |
718e3744 | 1964 | |
f4b8ec07 CS |
1965 | extern int peer_local_as_set(struct peer *, as_t, bool no_prepend, |
1966 | bool replace_as); | |
d62a17ae | 1967 | extern int peer_local_as_unset(struct peer *); |
718e3744 | 1968 | |
d62a17ae | 1969 | extern int peer_prefix_list_set(struct peer *, afi_t, safi_t, int, |
1970 | const char *); | |
1971 | extern int peer_prefix_list_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1972 | |
d62a17ae | 1973 | extern int peer_aslist_set(struct peer *, afi_t, safi_t, int, const char *); |
1974 | extern int peer_aslist_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 1975 | |
1de27621 DA |
1976 | extern int peer_route_map_set(struct peer *peer, afi_t afi, safi_t safi, int, |
1977 | const char *name, struct route_map *route_map); | |
d62a17ae | 1978 | extern int peer_route_map_unset(struct peer *, afi_t, safi_t, int); |
718e3744 | 1979 | |
1de27621 DA |
1980 | extern int peer_unsuppress_map_set(struct peer *peer, afi_t afi, safi_t safi, |
1981 | const char *name, | |
1982 | struct route_map *route_map); | |
0df7c91f | 1983 | |
7f7940e6 MK |
1984 | extern int peer_advertise_map_set(struct peer *peer, afi_t afi, safi_t safi, |
1985 | const char *advertise_name, | |
1986 | struct route_map *advertise_map, | |
cf2ad4d8 MK |
1987 | const char *condition_name, |
1988 | struct route_map *condition_map, | |
1989 | bool condition); | |
7f7940e6 | 1990 | |
d62a17ae | 1991 | extern int peer_password_set(struct peer *, const char *); |
1992 | extern int peer_password_unset(struct peer *); | |
0df7c91f | 1993 | |
d62a17ae | 1994 | extern int peer_unsuppress_map_unset(struct peer *, afi_t, safi_t); |
718e3744 | 1995 | |
7f7940e6 MK |
1996 | extern int peer_advertise_map_unset(struct peer *peer, afi_t afi, safi_t safi, |
1997 | const char *advertise_name, | |
1998 | struct route_map *advertise_map, | |
cf2ad4d8 MK |
1999 | const char *condition_name, |
2000 | struct route_map *condition_map, | |
2001 | bool condition); | |
7f7940e6 | 2002 | |
d7c0a89a | 2003 | extern int peer_maximum_prefix_set(struct peer *, afi_t, safi_t, uint32_t, |
9cbd06e0 | 2004 | uint8_t, int, uint16_t, bool force); |
d62a17ae | 2005 | extern int peer_maximum_prefix_unset(struct peer *, afi_t, safi_t); |
718e3744 | 2006 | |
d62a17ae | 2007 | extern int peer_clear(struct peer *, struct listnode **); |
2008 | extern int peer_clear_soft(struct peer *, afi_t, safi_t, enum bgp_clear_type); | |
93406d87 | 2009 | |
d62a17ae | 2010 | extern int peer_ttl_security_hops_set(struct peer *, int); |
2011 | extern int peer_ttl_security_hops_unset(struct peer *); | |
fa411a21 | 2012 | |
3dc339cd DA |
2013 | extern void peer_tx_shutdown_message_set(struct peer *, const char *msg); |
2014 | extern void peer_tx_shutdown_message_unset(struct peer *); | |
73d70fa6 | 2015 | |
d62a17ae | 2016 | extern int bgp_route_map_update_timer(struct thread *thread); |
518f0eb1 | 2017 | extern void bgp_route_map_terminate(void); |
16286195 | 2018 | |
d62a17ae | 2019 | extern int peer_cmp(struct peer *p1, struct peer *p2); |
3f9c7369 | 2020 | |
5c525538 | 2021 | extern int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi, iana_safi_t pkt_safi, |
d62a17ae | 2022 | afi_t *afi, safi_t *safi); |
2023 | extern int bgp_map_afi_safi_int2iana(afi_t afi, safi_t safi, | |
a4d82a8a PZ |
2024 | iana_afi_t *pkt_afi, |
2025 | iana_safi_t *pkt_safi); | |
9cabb64b | 2026 | |
d62a17ae | 2027 | extern struct peer_af *peer_af_create(struct peer *, afi_t, safi_t); |
2028 | extern struct peer_af *peer_af_find(struct peer *, afi_t, safi_t); | |
2029 | extern int peer_af_delete(struct peer *, afi_t, safi_t); | |
3f9c7369 | 2030 | |
736b68f3 | 2031 | extern void bgp_shutdown_enable(struct bgp *bgp, const char *msg); |
9cf59432 DS |
2032 | extern void bgp_shutdown_disable(struct bgp *bgp); |
2033 | ||
ffd0c037 | 2034 | extern void bgp_close(void); |
92375c91 | 2035 | extern void bgp_free(struct bgp *); |
b0965c44 | 2036 | void bgp_gr_apply_running_config(void); |
2037 | ||
2038 | /* BGP GR */ | |
b0965c44 | 2039 | int bgp_global_gr_init(struct bgp *bgp); |
2040 | int bgp_peer_gr_init(struct peer *peer); | |
92375c91 | 2041 | |
2d3dd828 | 2042 | |
36235319 QY |
2043 | #define BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(_bgp, _peer_list) \ |
2044 | do { \ | |
2045 | struct peer *peer_loop; \ | |
2046 | bool gr_router_detected = false; \ | |
2047 | struct listnode *node = {0}; \ | |
2048 | for (ALL_LIST_ELEMENTS_RO(_peer_list, node, peer_loop)) { \ | |
2049 | if (CHECK_FLAG(peer_loop->flags, \ | |
2050 | PEER_FLAG_GRACEFUL_RESTART)) \ | |
2051 | gr_router_detected = true; \ | |
2052 | } \ | |
2053 | if (gr_router_detected \ | |
2054 | && _bgp->present_zebra_gr_state == ZEBRA_GR_DISABLE) { \ | |
2055 | bgp_zebra_send_capabilities(_bgp, false); \ | |
2056 | } else if (!gr_router_detected \ | |
2057 | && _bgp->present_zebra_gr_state \ | |
2058 | == ZEBRA_GR_ENABLE) { \ | |
2059 | bgp_zebra_send_capabilities(_bgp, true); \ | |
2060 | } \ | |
2061 | } while (0) | |
2d3dd828 | 2062 | |
92375c91 JB |
2063 | static inline struct bgp *bgp_lock(struct bgp *bgp) |
2064 | { | |
2065 | bgp->lock++; | |
2066 | return bgp; | |
2067 | } | |
2068 | ||
2069 | static inline void bgp_unlock(struct bgp *bgp) | |
2070 | { | |
2071 | assert(bgp->lock > 0); | |
2072 | if (--bgp->lock == 0) | |
2073 | bgp_free(bgp); | |
2074 | } | |
ffd0c037 | 2075 | |
d62a17ae | 2076 | static inline int afindex(afi_t afi, safi_t safi) |
3f9c7369 | 2077 | { |
d62a17ae | 2078 | switch (afi) { |
2079 | case AFI_IP: | |
2080 | switch (safi) { | |
2081 | case SAFI_UNICAST: | |
2082 | return BGP_AF_IPV4_UNICAST; | |
d62a17ae | 2083 | case SAFI_MULTICAST: |
2084 | return BGP_AF_IPV4_MULTICAST; | |
d62a17ae | 2085 | case SAFI_LABELED_UNICAST: |
2086 | return BGP_AF_IPV4_LBL_UNICAST; | |
d62a17ae | 2087 | case SAFI_MPLS_VPN: |
2088 | return BGP_AF_IPV4_VPN; | |
d62a17ae | 2089 | case SAFI_ENCAP: |
2090 | return BGP_AF_IPV4_ENCAP; | |
7c40bf39 | 2091 | case SAFI_FLOWSPEC: |
2092 | return BGP_AF_IPV4_FLOWSPEC; | |
d62a17ae | 2093 | default: |
2094 | return BGP_AF_MAX; | |
d62a17ae | 2095 | } |
2096 | break; | |
2097 | case AFI_IP6: | |
2098 | switch (safi) { | |
2099 | case SAFI_UNICAST: | |
2100 | return BGP_AF_IPV6_UNICAST; | |
d62a17ae | 2101 | case SAFI_MULTICAST: |
2102 | return BGP_AF_IPV6_MULTICAST; | |
d62a17ae | 2103 | case SAFI_LABELED_UNICAST: |
2104 | return BGP_AF_IPV6_LBL_UNICAST; | |
d62a17ae | 2105 | case SAFI_MPLS_VPN: |
2106 | return BGP_AF_IPV6_VPN; | |
d62a17ae | 2107 | case SAFI_ENCAP: |
2108 | return BGP_AF_IPV6_ENCAP; | |
7c40bf39 | 2109 | case SAFI_FLOWSPEC: |
2110 | return BGP_AF_IPV6_FLOWSPEC; | |
d62a17ae | 2111 | default: |
2112 | return BGP_AF_MAX; | |
d62a17ae | 2113 | } |
2114 | break; | |
2115 | case AFI_L2VPN: | |
2116 | switch (safi) { | |
2117 | case SAFI_EVPN: | |
2118 | return BGP_AF_L2VPN_EVPN; | |
d62a17ae | 2119 | default: |
2120 | return BGP_AF_MAX; | |
d62a17ae | 2121 | } |
3f9c7369 | 2122 | default: |
d62a17ae | 2123 | return BGP_AF_MAX; |
3f9c7369 | 2124 | } |
3f9c7369 DS |
2125 | } |
2126 | ||
c8560b44 | 2127 | /* If the peer is not a peer-group but is bound to a peer-group return 1 */ |
d62a17ae | 2128 | static inline int peer_group_active(struct peer *peer) |
3f9c7369 | 2129 | { |
d62a17ae | 2130 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) && peer->group) |
2131 | return 1; | |
2132 | return 0; | |
3f9c7369 DS |
2133 | } |
2134 | ||
2135 | /* If peer is negotiated at least one address family return 1. */ | |
d62a17ae | 2136 | static inline int peer_afi_active_nego(const struct peer *peer, afi_t afi) |
3f9c7369 | 2137 | { |
d62a17ae | 2138 | if (peer->afc_nego[afi][SAFI_UNICAST] |
2139 | || peer->afc_nego[afi][SAFI_MULTICAST] | |
2140 | || peer->afc_nego[afi][SAFI_LABELED_UNICAST] | |
2141 | || peer->afc_nego[afi][SAFI_MPLS_VPN] | |
2142 | || peer->afc_nego[afi][SAFI_ENCAP] | |
7c40bf39 | 2143 | || peer->afc_nego[afi][SAFI_FLOWSPEC] |
d62a17ae | 2144 | || peer->afc_nego[afi][SAFI_EVPN]) |
2145 | return 1; | |
2146 | return 0; | |
3f9c7369 DS |
2147 | } |
2148 | ||
f14e6fdb | 2149 | /* If at least one address family activated for group, return 1. */ |
d62a17ae | 2150 | static inline int peer_group_af_configured(struct peer_group *group) |
f14e6fdb | 2151 | { |
d62a17ae | 2152 | struct peer *peer = group->conf; |
2153 | ||
2154 | if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST] | |
2155 | || peer->afc[AFI_IP][SAFI_LABELED_UNICAST] | |
7c40bf39 | 2156 | || peer->afc[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 2157 | || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP] |
2158 | || peer->afc[AFI_IP6][SAFI_UNICAST] | |
2159 | || peer->afc[AFI_IP6][SAFI_MULTICAST] | |
2160 | || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST] | |
2161 | || peer->afc[AFI_IP6][SAFI_MPLS_VPN] | |
ba0fcaf6 | 2162 | || peer->afc[AFI_IP6][SAFI_ENCAP] |
7c40bf39 | 2163 | || peer->afc[AFI_IP6][SAFI_FLOWSPEC] |
ba0fcaf6 | 2164 | || peer->afc[AFI_L2VPN][SAFI_EVPN]) |
d62a17ae | 2165 | return 1; |
2166 | return 0; | |
f14e6fdb DS |
2167 | } |
2168 | ||
d62a17ae | 2169 | static inline char *timestamp_string(time_t ts) |
3f9c7369 | 2170 | { |
d62a17ae | 2171 | time_t tbuf; |
2172 | tbuf = time(NULL) - (bgp_clock() - ts); | |
2173 | return ctime(&tbuf); | |
3f9c7369 DS |
2174 | } |
2175 | ||
d62a17ae | 2176 | static inline int peer_established(struct peer *peer) |
3f9c7369 | 2177 | { |
d62a17ae | 2178 | if (peer->status == Established) |
2179 | return 1; | |
2180 | return 0; | |
3f9c7369 DS |
2181 | } |
2182 | ||
d62a17ae | 2183 | static inline int peer_dynamic_neighbor(struct peer *peer) |
f14e6fdb | 2184 | { |
d62a17ae | 2185 | return (CHECK_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR)) ? 1 : 0; |
f14e6fdb DS |
2186 | } |
2187 | ||
d62a17ae | 2188 | static inline int peer_cap_enhe(struct peer *peer, afi_t afi, safi_t safi) |
8a92a8a0 | 2189 | { |
d62a17ae | 2190 | return (CHECK_FLAG(peer->af_cap[afi][safi], PEER_CAP_ENHE_AF_NEGO)); |
8a92a8a0 DS |
2191 | } |
2192 | ||
d1be1f08 | 2193 | /* Lookup VRF for BGP instance based on its type. */ |
d62a17ae | 2194 | static inline struct vrf *bgp_vrf_lookup_by_instance_type(struct bgp *bgp) |
d1be1f08 | 2195 | { |
d62a17ae | 2196 | struct vrf *vrf; |
d1be1f08 | 2197 | |
d62a17ae | 2198 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) |
2199 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
2200 | else if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
2201 | vrf = vrf_lookup_by_name(bgp->name); | |
2202 | else | |
2203 | vrf = NULL; | |
d1be1f08 | 2204 | |
d62a17ae | 2205 | return vrf; |
d1be1f08 | 2206 | } |
2207 | ||
2208 | /* Link BGP instance to VRF. */ | |
d62a17ae | 2209 | static inline void bgp_vrf_link(struct bgp *bgp, struct vrf *vrf) |
d1be1f08 | 2210 | { |
d62a17ae | 2211 | bgp->vrf_id = vrf->vrf_id; |
92375c91 JB |
2212 | if (vrf->info != (void *)bgp) |
2213 | vrf->info = (void *)bgp_lock(bgp); | |
d1be1f08 | 2214 | } |
2215 | ||
2216 | /* Unlink BGP instance from VRF. */ | |
d62a17ae | 2217 | static inline void bgp_vrf_unlink(struct bgp *bgp, struct vrf *vrf) |
d1be1f08 | 2218 | { |
d62a17ae | 2219 | if (vrf->info == (void *)bgp) { |
2220 | vrf->info = NULL; | |
2221 | bgp_unlock(bgp); | |
2222 | } | |
2223 | bgp->vrf_id = VRF_UNKNOWN; | |
d1be1f08 | 2224 | } |
2225 | ||
637e5ba4 | 2226 | static inline bool bgp_in_graceful_shutdown(struct bgp *bgp) |
2227 | { | |
05bd726c | 2228 | /* True if either set for this instance or globally */ |
2229 | return (!!CHECK_FLAG(bgp->flags, BGP_FLAG_GRACEFUL_SHUTDOWN) || | |
2230 | !!CHECK_FLAG(bm->flags, BM_FLAG_GRACEFUL_SHUTDOWN)); | |
637e5ba4 | 2231 | } |
2232 | ||
401d56cc | 2233 | extern void bgp_unset_redist_vrf_bitmaps(struct bgp *, vrf_id_t); |
65efcfce LB |
2234 | |
2235 | /* For benefit of rfapi */ | |
d62a17ae | 2236 | extern struct peer *peer_new(struct bgp *bgp); |
dcc1615e DD |
2237 | |
2238 | extern struct peer *peer_lookup_in_view(struct vty *vty, struct bgp *bgp, | |
2239 | const char *ip_str, bool use_json); | |
bdaadb91 CS |
2240 | extern int bgp_lookup_by_as_name_type(struct bgp **bgp_val, as_t *as, |
2241 | const char *name, | |
2242 | enum bgp_instance_type inst_type); | |
dcc1615e | 2243 | |
7d8d0eab MKS |
2244 | /* Hooks */ |
2245 | DECLARE_HOOK(peer_status_changed, (struct peer * peer), (peer)) | |
d7b3cda6 | 2246 | void peer_nsf_stop(struct peer *peer); |
7d8d0eab | 2247 | |
00d252cb | 2248 | #endif /* _QUAGGA_BGPD_H */ |