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acddc0ed | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
718e3744 | 2 | /* BGP message definition header. |
896014f4 | 3 | * Copyright (C) 1996, 97, 98, 99, 2000 Kunihiro Ishiguro |
896014f4 | 4 | */ |
718e3744 | 5 | |
00d252cb | 6 | #ifndef _QUAGGA_BGPD_H |
7 | #define _QUAGGA_BGPD_H | |
8 | ||
19df7279 | 9 | #include "qobj.h" |
d3ecc69e QY |
10 | #include <pthread.h> |
11 | ||
2b9bcf30 | 12 | #include "hook.h" |
1ac267a2 | 13 | #include "frr_pthread.h" |
856ca177 | 14 | #include "lib/json.h" |
6aeb9e78 | 15 | #include "vrf.h" |
94c60424 | 16 | #include "vty.h" |
92a9e6f2 | 17 | #include "srv6.h" |
17136bf2 | 18 | #include "iana_afi.h" |
8079a413 | 19 | #include "asn.h" |
6aeb9e78 | 20 | |
718e3744 | 21 | /* For union sockunion. */ |
3f9c7369 | 22 | #include "queue.h" |
718e3744 | 23 | #include "sockunion.h" |
518f0eb1 | 24 | #include "routemap.h" |
ffd0c037 | 25 | #include "linklist.h" |
8efe88ea | 26 | #include "defaults.h" |
4a1ab8e4 | 27 | #include "bgp_memory.h" |
14c1a7bf | 28 | #include "bitfield.h" |
fe1dc5a3 | 29 | #include "vxlan.h" |
955bfd98 | 30 | #include "bgp_labelpool.h" |
dcc68b5e | 31 | #include "bgp_addpath_types.h" |
f663c581 | 32 | #include "bgp_nexthop.h" |
338f4a78 | 33 | #include "bgp_io.h" |
718e3744 | 34 | |
21bfce98 RZ |
35 | #include "lib/bfd.h" |
36 | ||
04b6bdc0 | 37 | #define BGP_MAX_HOSTNAME 64 /* Linux max, is larger than most other sys */ |
40520c36 | 38 | #define BGP_PEER_MAX_HASH_SIZE 16384 |
04b6bdc0 | 39 | |
5c81b96a | 40 | /* Default interval for IPv6 RAs when triggered by BGP unnumbered neighbor. */ |
41 | #define BGP_UNNUM_DEFAULT_RA_INTERVAL 10 | |
42 | ||
3f9c7369 DS |
43 | struct update_subgroup; |
44 | struct bpacket; | |
4762c213 | 45 | struct bgp_pbr_config; |
3f9c7369 | 46 | |
0299c004 DS |
47 | /* |
48 | * Allow the neighbor XXXX remote-as to take internal or external | |
d62a17ae | 49 | * AS_SPECIFIED is zero to auto-inherit original non-feature/enhancement |
50 | * behavior | |
0299c004 DS |
51 | * in the system. |
52 | */ | |
d62a17ae | 53 | enum { AS_UNSPECIFIED = 0, |
54 | AS_SPECIFIED, | |
55 | AS_INTERNAL, | |
56 | AS_EXTERNAL, | |
0299c004 DS |
57 | }; |
58 | ||
2d3dd828 | 59 | /* Zebra Gracaful Restart states */ |
60 | enum zebra_gr_mode { | |
61 | ZEBRA_GR_DISABLE = 0, | |
62 | ZEBRA_GR_ENABLE | |
63 | }; | |
64 | ||
718e3744 | 65 | /* Typedef BGP specific types. */ |
d7c0a89a QY |
66 | typedef uint16_t as16_t; /* we may still encounter 16 Bit asnums */ |
67 | typedef uint16_t bgp_size_t; | |
718e3744 | 68 | |
d62a17ae | 69 | enum bgp_af_index { |
70 | BGP_AF_START, | |
71 | BGP_AF_IPV4_UNICAST = BGP_AF_START, | |
72 | BGP_AF_IPV4_MULTICAST, | |
73 | BGP_AF_IPV4_VPN, | |
74 | BGP_AF_IPV6_UNICAST, | |
75 | BGP_AF_IPV6_MULTICAST, | |
76 | BGP_AF_IPV6_VPN, | |
77 | BGP_AF_IPV4_ENCAP, | |
78 | BGP_AF_IPV6_ENCAP, | |
79 | BGP_AF_L2VPN_EVPN, | |
80 | BGP_AF_IPV4_LBL_UNICAST, | |
81 | BGP_AF_IPV6_LBL_UNICAST, | |
7c40bf39 | 82 | BGP_AF_IPV4_FLOWSPEC, |
83 | BGP_AF_IPV6_FLOWSPEC, | |
d62a17ae | 84 | BGP_AF_MAX |
3f9c7369 DS |
85 | }; |
86 | ||
d62a17ae | 87 | #define AF_FOREACH(af) for ((af) = BGP_AF_START; (af) < BGP_AF_MAX; (af)++) |
3f9c7369 | 88 | |
d1927ebe AS |
89 | #define FOREACH_SAFI(safi) \ |
90 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
3f9c7369 | 91 | |
1ac267a2 DL |
92 | extern struct frr_pthread *bgp_pth_io; |
93 | extern struct frr_pthread *bgp_pth_ka; | |
94 | ||
718e3744 | 95 | /* BGP master for system wide configurations and variables. */ |
d62a17ae | 96 | struct bgp_master { |
97 | /* BGP instance list. */ | |
98 | struct list *bgp; | |
99 | ||
100 | /* BGP thread master. */ | |
101 | struct thread_master *master; | |
718e3744 | 102 | |
d62a17ae | 103 | /* Listening sockets */ |
104 | struct list *listen_sockets; | |
718e3744 | 105 | |
d62a17ae | 106 | /* BGP port number. */ |
d7c0a89a | 107 | uint16_t port; |
3a02d1f7 | 108 | |
85e9cd9a AMR |
109 | /* Listener addresses */ |
110 | struct list *addresses; | |
718e3744 | 111 | |
48ecf8f5 DS |
112 | /* The Mac table */ |
113 | struct hash *self_mac_hash; | |
114 | ||
d62a17ae | 115 | /* BGP start time. */ |
116 | time_t start_time; | |
117 | ||
118 | /* Various BGP global configuration. */ | |
d7c0a89a | 119 | uint8_t options; |
d1adb448 | 120 | |
718e3744 | 121 | #define BGP_OPT_NO_FIB (1 << 0) |
d8a9922d DS |
122 | #define BGP_OPT_NO_LISTEN (1 << 1) |
123 | #define BGP_OPT_NO_ZEBRA (1 << 2) | |
3f9c7369 | 124 | |
d62a17ae | 125 | uint64_t updgrp_idspace; |
126 | uint64_t subgrp_idspace; | |
5fe9f963 | 127 | |
d62a17ae | 128 | /* timer to dampen route map changes */ |
129 | struct thread *t_rmap_update; /* Handle route map updates */ | |
d7c0a89a | 130 | uint32_t rmap_update_timer; /* Route map update timer */ |
5fe9f963 | 131 | #define RMAP_DEFAULT_UPDATE_TIMER 5 /* disabled by default */ |
19df7279 | 132 | |
e9eb5f63 | 133 | /* Id space for automatic RD derivation for an EVI/VRF */ |
134 | bitfield_t rd_idspace; | |
135 | ||
955bfd98 PZ |
136 | /* dynamic mpls label allocation pool */ |
137 | struct labelpool labelpool; | |
138 | ||
e2f3a930 T |
139 | /* BGP-EVPN VRF ID. Defaults to default VRF (if any) */ |
140 | struct bgp* bgp_evpn; | |
141 | ||
c2d020ad DS |
142 | /* How big should we set the socket buffer size */ |
143 | uint32_t socket_buffer; | |
144 | ||
9acb67cb DS |
145 | /* Should we do wait for fib install globally? */ |
146 | bool wait_for_fib; | |
147 | ||
c44ab6f1 AK |
148 | /* EVPN multihoming */ |
149 | struct bgp_evpn_mh_info *mh_info; | |
150 | ||
d70583f7 D |
151 | /* global update-delay timer values */ |
152 | uint16_t v_update_delay; | |
153 | uint16_t v_establish_wait; | |
154 | ||
05bd726c | 155 | uint32_t flags; |
156 | #define BM_FLAG_GRACEFUL_SHUTDOWN (1 << 0) | |
ec0acb80 | 157 | #define BM_FLAG_SEND_EXTRA_DATA_TO_ZEBRA (1 << 1) |
e46723a5 | 158 | |
97b4a0ec | 159 | bool terminating; /* global flag that sigint terminate seen */ |
425bd64b PS |
160 | |
161 | /* DSCP value for TCP sessions */ | |
162 | uint8_t tcp_dscp; | |
163 | ||
963b7ee4 | 164 | #define BM_DEFAULT_Q_LIMIT 10000 |
a0b937de | 165 | uint32_t inq_limit; |
963b7ee4 | 166 | uint32_t outq_limit; |
a0b937de | 167 | |
96244aca | 168 | QOBJ_FIELDS; |
718e3744 | 169 | }; |
96244aca | 170 | DECLARE_QOBJ_TYPE(bgp_master); |
718e3744 | 171 | |
73ac8160 | 172 | /* BGP route-map structure. */ |
d62a17ae | 173 | struct bgp_rmap { |
174 | char *name; | |
175 | struct route_map *map; | |
73ac8160 DS |
176 | }; |
177 | ||
d62a17ae | 178 | struct bgp_redist { |
d7c0a89a | 179 | unsigned short instance; |
7c8ff89e | 180 | |
d62a17ae | 181 | /* BGP redistribute metric configuration. */ |
d7c0a89a QY |
182 | uint8_t redist_metric_flag; |
183 | uint32_t redist_metric; | |
7c8ff89e | 184 | |
d62a17ae | 185 | /* BGP redistribute route-map. */ |
186 | struct bgp_rmap rmap; | |
7c8ff89e DS |
187 | }; |
188 | ||
9c2fd3fe | 189 | enum vpn_policy_direction { |
ddb5b488 PZ |
190 | BGP_VPN_POLICY_DIR_FROMVPN = 0, |
191 | BGP_VPN_POLICY_DIR_TOVPN = 1, | |
192 | BGP_VPN_POLICY_DIR_MAX = 2 | |
9c2fd3fe | 193 | }; |
ddb5b488 | 194 | |
e70e9f8e PZ |
195 | struct vpn_policy { |
196 | struct bgp *bgp; /* parent */ | |
197 | afi_t afi; | |
198 | struct ecommunity *rtlist[BGP_VPN_POLICY_DIR_MAX]; | |
199 | struct ecommunity *import_redirect_rtlist; | |
200 | char *rmap_name[BGP_VPN_POLICY_DIR_MAX]; | |
201 | struct route_map *rmap[BGP_VPN_POLICY_DIR_MAX]; | |
202 | ||
203 | /* should be mpls_label_t? */ | |
204 | uint32_t tovpn_label; /* may be MPLS_LABEL_NONE */ | |
205 | uint32_t tovpn_zebra_vrf_label_last_sent; | |
fa566a94 | 206 | char *tovpn_rd_pretty; |
e70e9f8e PZ |
207 | struct prefix_rd tovpn_rd; |
208 | struct prefix tovpn_nexthop; /* unset => set to 0 */ | |
209 | uint32_t flags; | |
210 | #define BGP_VPN_POLICY_TOVPN_LABEL_AUTO (1 << 0) | |
211 | #define BGP_VPN_POLICY_TOVPN_RD_SET (1 << 1) | |
212 | #define BGP_VPN_POLICY_TOVPN_NEXTHOP_SET (1 << 2) | |
92a9e6f2 | 213 | #define BGP_VPN_POLICY_TOVPN_SID_AUTO (1 << 3) |
12a844a5 | 214 | |
1d4e8b0d DS |
215 | /* |
216 | * If we are importing another vrf into us keep a list of | |
217 | * vrf names that are being imported into us. | |
218 | */ | |
12a844a5 | 219 | struct list *import_vrf; |
1d4e8b0d DS |
220 | |
221 | /* | |
222 | * if we are being exported to another vrf keep a list of | |
223 | * vrf names that we are being exported to. | |
224 | */ | |
12a844a5 | 225 | struct list *export_vrf; |
92a9e6f2 HS |
226 | |
227 | /* | |
228 | * Segment-Routing SRv6 Mode | |
229 | */ | |
230 | uint32_t tovpn_sid_index; /* unset => set to 0 */ | |
231 | struct in6_addr *tovpn_sid; | |
bee2e7d0 | 232 | struct srv6_locator_chunk *tovpn_sid_locator; |
a45cd34e | 233 | uint32_t tovpn_sid_transpose_label; |
92a9e6f2 | 234 | struct in6_addr *tovpn_zebra_vrf_sid_last_sent; |
e70e9f8e PZ |
235 | }; |
236 | ||
ad4cbda1 | 237 | /* |
238 | * Type of 'struct bgp'. | |
239 | * - Default: The default instance | |
240 | * - VRF: A specific (non-default) VRF | |
241 | * - View: An instance used for route exchange | |
242 | * The "default" instance is treated separately to simplify the code. Note | |
243 | * that if deployed in a Multi-VRF environment, it may not exist. | |
244 | */ | |
d62a17ae | 245 | enum bgp_instance_type { |
246 | BGP_INSTANCE_TYPE_DEFAULT, | |
247 | BGP_INSTANCE_TYPE_VRF, | |
248 | BGP_INSTANCE_TYPE_VIEW | |
ad4cbda1 | 249 | }; |
250 | ||
36235319 | 251 | #define BGP_SEND_EOR(bgp, afi, safi) \ |
892fedb6 | 252 | (!CHECK_FLAG(bgp->flags, BGP_FLAG_GR_DISABLE_EOR) \ |
36235319 QY |
253 | && ((bgp->gr_info[afi][safi].t_select_deferral == NULL) \ |
254 | || (bgp->gr_info[afi][safi].eor_required \ | |
255 | == bgp->gr_info[afi][safi].eor_received))) | |
b0965c44 | 256 | |
257 | /* BGP GR Global ds */ | |
258 | ||
2ba1fe69 | 259 | #define BGP_GLOBAL_GR_MODE 4 |
260 | #define BGP_GLOBAL_GR_EVENT_CMD 4 | |
b0965c44 | 261 | |
b0965c44 | 262 | /* Graceful restart selection deferral timer info */ |
263 | struct graceful_restart_info { | |
264 | /* Count of EOR message expected */ | |
265 | uint32_t eor_required; | |
266 | /* Count of EOR received */ | |
267 | uint32_t eor_received; | |
268 | /* Deferral Timer */ | |
269 | struct thread *t_select_deferral; | |
26742171 DS |
270 | /* Routes Deferred */ |
271 | uint32_t gr_deferred; | |
b0965c44 | 272 | /* Best route select */ |
273 | struct thread *t_route_select; | |
2d3dd828 | 274 | /* AFI, SAFI enabled */ |
275 | bool af_enabled[AFI_MAX][SAFI_MAX]; | |
276 | /* Route update completed */ | |
277 | bool route_sync[AFI_MAX][SAFI_MAX]; | |
b0965c44 | 278 | }; |
279 | ||
b0965c44 | 280 | enum global_mode { |
281 | GLOBAL_HELPER = 0, /* This is the default mode */ | |
282 | GLOBAL_GR, | |
283 | GLOBAL_DISABLE, | |
284 | GLOBAL_INVALID | |
285 | }; | |
286 | ||
287 | enum global_gr_command { | |
288 | GLOBAL_GR_CMD = 0, | |
289 | NO_GLOBAL_GR_CMD, | |
290 | GLOBAL_DISABLE_CMD, | |
291 | NO_GLOBAL_DISABLE_CMD | |
292 | }; | |
293 | ||
294 | #define BGP_GR_SUCCESS 0 | |
295 | #define BGP_GR_FAILURE 1 | |
296 | ||
f7e1c681 | 297 | /* Handling of BGP link bandwidth (LB) on receiver - whether and how to |
298 | * do weighted ECMP. Note: This applies after multipath computation. | |
299 | */ | |
300 | enum bgp_link_bw_handling { | |
301 | /* Do ECMP if some paths don't have LB - default */ | |
302 | BGP_LINK_BW_ECMP, | |
303 | /* Completely ignore LB, just do regular ECMP */ | |
304 | BGP_LINK_BW_IGNORE_BW, | |
305 | /* Skip paths without LB, do wECMP on others */ | |
306 | BGP_LINK_BW_SKIP_MISSING, | |
307 | /* Do wECMP with default weight for paths not having LB */ | |
308 | BGP_LINK_BW_DEFWT_4_MISSING | |
309 | }; | |
310 | ||
c589d847 AK |
311 | RB_HEAD(bgp_es_vrf_rb_head, bgp_evpn_es_vrf); |
312 | RB_PROTOTYPE(bgp_es_vrf_rb_head, bgp_evpn_es_vrf, rb_node, bgp_es_vrf_rb_cmp); | |
313 | ||
0d020cd6 PR |
314 | struct bgp_snmp_stats { |
315 | /* SNMP variables for mplsL3Vpn*/ | |
316 | time_t creation_time; | |
317 | time_t modify_time; | |
318 | bool active; | |
7fd28dd2 PR |
319 | uint32_t routes_added; |
320 | uint32_t routes_deleted; | |
0d020cd6 PR |
321 | }; |
322 | ||
92a9e6f2 HS |
323 | struct bgp_srv6_function { |
324 | struct in6_addr sid; | |
325 | char locator_name[SRV6_LOCNAME_SIZE]; | |
326 | }; | |
327 | ||
7e14d0fa PG |
328 | struct as_confed { |
329 | as_t as; | |
330 | char *as_pretty; | |
331 | }; | |
332 | ||
718e3744 | 333 | /* BGP instance structure. */ |
d62a17ae | 334 | struct bgp { |
335 | /* AS number of this BGP instance. */ | |
336 | as_t as; | |
9eb11997 | 337 | char *as_pretty; |
d62a17ae | 338 | |
339 | /* Name of this BGP instance. */ | |
340 | char *name; | |
3572fb26 | 341 | char *name_pretty; /* printable "VRF|VIEW name|default" */ |
d62a17ae | 342 | |
343 | /* Type of instance and VRF id. */ | |
344 | enum bgp_instance_type inst_type; | |
345 | vrf_id_t vrf_id; | |
346 | ||
347 | /* Reference count to allow peer_delete to finish after bgp_delete */ | |
348 | int lock; | |
349 | ||
350 | /* Self peer. */ | |
351 | struct peer *peer_self; | |
352 | ||
353 | /* BGP peer. */ | |
354 | struct list *peer; | |
355 | struct hash *peerhash; | |
356 | ||
357 | /* BGP peer group. */ | |
358 | struct list *group; | |
359 | ||
360 | /* The maximum number of BGP dynamic neighbors that can be created */ | |
361 | int dynamic_neighbors_limit; | |
362 | ||
363 | /* The current number of BGP dynamic neighbors */ | |
364 | int dynamic_neighbors_count; | |
365 | ||
366 | struct hash *update_groups[BGP_AF_MAX]; | |
367 | ||
368 | /* | |
369 | * Global statistics for update groups. | |
370 | */ | |
371 | struct { | |
d7c0a89a QY |
372 | uint32_t join_events; |
373 | uint32_t prune_events; | |
374 | uint32_t merge_events; | |
375 | uint32_t split_events; | |
376 | uint32_t updgrp_switch_events; | |
377 | uint32_t peer_refreshes_combined; | |
378 | uint32_t adj_count; | |
379 | uint32_t merge_checks_triggered; | |
380 | ||
381 | uint32_t updgrps_created; | |
382 | uint32_t updgrps_deleted; | |
383 | uint32_t subgrps_created; | |
384 | uint32_t subgrps_deleted; | |
d62a17ae | 385 | } update_group_stats; |
386 | ||
0d020cd6 PR |
387 | struct bgp_snmp_stats *snmp_stats; |
388 | ||
d62a17ae | 389 | /* BGP configuration. */ |
d7c0a89a | 390 | uint16_t config; |
c2d58d6d | 391 | #define BGP_CONFIG_CLUSTER_ID (1 << 0) |
392 | #define BGP_CONFIG_CONFEDERATION (1 << 1) | |
e55b0883 | 393 | #define BGP_CONFIG_ASNOTATION (1 << 2) |
718e3744 | 394 | |
d62a17ae | 395 | /* BGP router identifier. */ |
396 | struct in_addr router_id; | |
397 | struct in_addr router_id_static; | |
398 | struct in_addr router_id_zebra; | |
718e3744 | 399 | |
d62a17ae | 400 | /* BGP route reflector cluster ID. */ |
401 | struct in_addr cluster_id; | |
718e3744 | 402 | |
d62a17ae | 403 | /* BGP confederation information. */ |
404 | as_t confed_id; | |
7e14d0fa PG |
405 | char *confed_id_pretty; |
406 | struct as_confed *confed_peers; | |
d62a17ae | 407 | int confed_peers_cnt; |
718e3744 | 408 | |
d62a17ae | 409 | struct thread |
410 | *t_startup; /* start-up timer on only once at the beginning */ | |
abc920f8 | 411 | |
d7c0a89a | 412 | uint32_t v_maxmed_onstartup; /* Duration of max-med on start-up */ |
abc920f8 | 413 | #define BGP_MAXMED_ONSTARTUP_UNCONFIGURED 0 /* 0 means off, its the default */ |
d7c0a89a QY |
414 | uint32_t maxmed_onstartup_value; /* Max-med value when active on |
415 | start-up */ | |
d62a17ae | 416 | struct thread |
417 | *t_maxmed_onstartup; /* non-null when max-med onstartup is on */ | |
d7c0a89a | 418 | uint8_t maxmed_onstartup_over; /* Flag to make it effective only once */ |
d62a17ae | 419 | |
ff8a8a7a CS |
420 | bool v_maxmed_admin; /* true/false if max-med administrative is on/off |
421 | */ | |
422 | #define BGP_MAXMED_ADMIN_UNCONFIGURED false /* Off by default */ | |
d7c0a89a QY |
423 | uint32_t maxmed_admin_value; /* Max-med value when administrative in on |
424 | */ | |
abc920f8 DS |
425 | #define BGP_MAXMED_VALUE_DEFAULT 4294967294 /* Maximum by default */ |
426 | ||
d7c0a89a QY |
427 | uint8_t maxmed_active; /* 1/0 if max-med is active or not */ |
428 | uint32_t maxmed_value; /* Max-med value when its active */ | |
d62a17ae | 429 | |
430 | /* BGP update delay on startup */ | |
431 | struct thread *t_update_delay; | |
432 | struct thread *t_establish_wait; | |
7f1f9314 DS |
433 | struct thread *t_revalidate[AFI_MAX][SAFI_MAX]; |
434 | ||
d7c0a89a QY |
435 | uint8_t update_delay_over; |
436 | uint8_t main_zebra_update_hold; | |
437 | uint8_t main_peers_update_hold; | |
438 | uint16_t v_update_delay; | |
439 | uint16_t v_establish_wait; | |
d62a17ae | 440 | char update_delay_begin_time[64]; |
441 | char update_delay_end_time[64]; | |
442 | char update_delay_zebra_resume_time[64]; | |
443 | char update_delay_peers_resume_time[64]; | |
d7c0a89a QY |
444 | uint32_t established; |
445 | uint32_t restarted_peers; | |
446 | uint32_t implicit_eors; | |
447 | uint32_t explicit_eors; | |
f188f2c4 DS |
448 | #define BGP_UPDATE_DELAY_DEF 0 |
449 | #define BGP_UPDATE_DELAY_MIN 0 | |
450 | #define BGP_UPDATE_DELAY_MAX 3600 | |
451 | ||
b1875e65 | 452 | /* Reference bandwidth for BGP link-bandwidth. Used when |
453 | * the LB value has to be computed based on some other | |
454 | * factor (e.g., number of multipaths for the prefix) | |
455 | * Value is in Mbps | |
456 | */ | |
457 | uint32_t lb_ref_bw; | |
458 | #define BGP_LINK_BW_REF_BW 1 | |
459 | ||
d62a17ae | 460 | /* BGP flags. */ |
fd6b4f06 | 461 | uint64_t flags; |
97a52c82 DA |
462 | #define BGP_FLAG_ALWAYS_COMPARE_MED (1ULL << 0) |
463 | #define BGP_FLAG_DETERMINISTIC_MED (1ULL << 1) | |
464 | #define BGP_FLAG_MED_MISSING_AS_WORST (1ULL << 2) | |
465 | #define BGP_FLAG_MED_CONFED (1ULL << 3) | |
466 | #define BGP_FLAG_NO_CLIENT_TO_CLIENT (1ULL << 4) | |
467 | #define BGP_FLAG_COMPARE_ROUTER_ID (1ULL << 5) | |
468 | #define BGP_FLAG_ASPATH_IGNORE (1ULL << 6) | |
469 | #define BGP_FLAG_IMPORT_CHECK (1ULL << 7) | |
470 | #define BGP_FLAG_NO_FAST_EXT_FAILOVER (1ULL << 8) | |
471 | #define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1ULL << 9) | |
b0965c44 | 472 | |
473 | /* This flag is set when we have full BGP Graceful-Restart mode enable */ | |
97a52c82 DA |
474 | #define BGP_FLAG_GRACEFUL_RESTART (1ULL << 10) |
475 | ||
476 | #define BGP_FLAG_ASPATH_CONFED (1ULL << 11) | |
477 | #define BGP_FLAG_ASPATH_MULTIPATH_RELAX (1ULL << 12) | |
478 | #define BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY (1ULL << 13) | |
479 | #define BGP_FLAG_DISABLE_NH_CONNECTED_CHK (1ULL << 14) | |
480 | #define BGP_FLAG_MULTIPATH_RELAX_AS_SET (1ULL << 15) | |
481 | #define BGP_FLAG_FORCE_STATIC_PROCESS (1ULL << 16) | |
482 | #define BGP_FLAG_SHOW_HOSTNAME (1ULL << 17) | |
483 | #define BGP_FLAG_GR_PRESERVE_FWD (1ULL << 18) | |
484 | #define BGP_FLAG_GRACEFUL_SHUTDOWN (1ULL << 19) | |
485 | #define BGP_FLAG_DELETE_IN_PROGRESS (1ULL << 20) | |
486 | #define BGP_FLAG_SELECT_DEFER_DISABLE (1ULL << 21) | |
487 | #define BGP_FLAG_GR_DISABLE_EOR (1ULL << 22) | |
488 | #define BGP_FLAG_EBGP_REQUIRES_POLICY (1ULL << 23) | |
489 | #define BGP_FLAG_SHOW_NEXTHOP_HOSTNAME (1ULL << 24) | |
b0965c44 | 490 | |
9cf59432 | 491 | /* This flag is set if the instance is in administrative shutdown */ |
97a52c82 DA |
492 | #define BGP_FLAG_SHUTDOWN (1ULL << 25) |
493 | #define BGP_FLAG_SUPPRESS_FIB_PENDING (1ULL << 26) | |
494 | #define BGP_FLAG_SUPPRESS_DUPLICATES (1ULL << 27) | |
495 | #define BGP_FLAG_PEERTYPE_MULTIPATH_RELAX (1ULL << 29) | |
f2ca5c5b | 496 | /* Indicate Graceful Restart support for BGP NOTIFICATION messages */ |
97a52c82 | 497 | #define BGP_FLAG_GRACEFUL_NOTIFICATION (1ULL << 30) |
1ae314be | 498 | /* Send Hard Reset CEASE Notification for 'Administrative Reset' */ |
97a52c82 DA |
499 | #define BGP_FLAG_HARD_ADMIN_RESET (1ULL << 31) |
500 | /* Evaluate the AIGP attribute during the best path selection process */ | |
501 | #define BGP_FLAG_COMPARE_AIGP (1ULL << 32) | |
b16bcbba TA |
502 | |
503 | /* BGP default address-families. | |
504 | * New peers inherit enabled afi/safis from bgp instance. | |
505 | */ | |
506 | uint16_t default_af[AFI_MAX][SAFI_MAX]; | |
9cf59432 | 507 | |
2ba1fe69 | 508 | enum global_mode GLOBAL_GR_FSM[BGP_GLOBAL_GR_MODE] |
36235319 | 509 | [BGP_GLOBAL_GR_EVENT_CMD]; |
b0965c44 | 510 | enum global_mode global_gr_present_state; |
511 | ||
2d3dd828 | 512 | /* This variable stores the current Graceful Restart state of Zebra |
513 | * - ZEBRA_GR_ENABLE / ZEBRA_GR_DISABLE | |
514 | */ | |
515 | enum zebra_gr_mode present_zebra_gr_state; | |
516 | ||
d62a17ae | 517 | /* BGP Per AF flags */ |
d7c0a89a | 518 | uint16_t af_flags[AFI_MAX][SAFI_MAX]; |
f4882003 | 519 | #define BGP_CONFIG_DAMPENING (1 << 0) |
2c29b18a | 520 | /* l2vpn evpn flags - 1 << 0 is used for DAMPENNG */ |
d4a88de3 AD |
521 | #define BGP_L2VPN_EVPN_ADV_IPV4_UNICAST (1 << 1) |
522 | #define BGP_L2VPN_EVPN_ADV_IPV4_UNICAST_GW_IP (1 << 2) | |
523 | #define BGP_L2VPN_EVPN_ADV_IPV6_UNICAST (1 << 3) | |
524 | #define BGP_L2VPN_EVPN_ADV_IPV6_UNICAST_GW_IP (1 << 4) | |
525 | #define BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV4 (1 << 5) | |
526 | #define BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV6 (1 << 6) | |
f4882003 | 527 | /* import/export between address families */ |
d4a88de3 AD |
528 | #define BGP_CONFIG_VRF_TO_MPLSVPN_EXPORT (1 << 7) |
529 | #define BGP_CONFIG_MPLSVPN_TO_VRF_IMPORT (1 << 8) | |
f4882003 | 530 | /* vrf-route leaking flags */ |
d4a88de3 AD |
531 | #define BGP_CONFIG_VRF_TO_VRF_IMPORT (1 << 9) |
532 | #define BGP_CONFIG_VRF_TO_VRF_EXPORT (1 << 10) | |
a486300b PG |
533 | /* vpnvx retain flag */ |
534 | #define BGP_VPNVX_RETAIN_ROUTE_TARGET_ALL (1 << 11) | |
154faa50 | 535 | |
210ec2a0 AS |
536 | /* BGP per AF peer count */ |
537 | uint32_t af_peer_count[AFI_MAX][SAFI_MAX]; | |
538 | ||
f663c581 RW |
539 | /* Tree for next-hop lookup cache. */ |
540 | struct bgp_nexthop_cache_head nexthop_cache_table[AFI_MAX]; | |
6aeb9e78 | 541 | |
f663c581 RW |
542 | /* Tree for import-check */ |
543 | struct bgp_nexthop_cache_head import_check_table[AFI_MAX]; | |
6aeb9e78 | 544 | |
d62a17ae | 545 | struct bgp_table *connected_table[AFI_MAX]; |
6aeb9e78 | 546 | |
d62a17ae | 547 | struct hash *address_hash; |
6aeb9e78 | 548 | |
db0e1937 MK |
549 | /* DB for all local tunnel-ips - used mainly for martian checks |
550 | Currently it only has all VxLan tunnel IPs*/ | |
551 | struct hash *tip_hash; | |
552 | ||
d62a17ae | 553 | /* Static route configuration. */ |
554 | struct bgp_table *route[AFI_MAX][SAFI_MAX]; | |
718e3744 | 555 | |
d62a17ae | 556 | /* Aggregate address configuration. */ |
557 | struct bgp_table *aggregate[AFI_MAX][SAFI_MAX]; | |
718e3744 | 558 | |
d62a17ae | 559 | /* BGP routing information base. */ |
560 | struct bgp_table *rib[AFI_MAX][SAFI_MAX]; | |
718e3744 | 561 | |
d62a17ae | 562 | /* BGP table route-map. */ |
563 | struct bgp_rmap table_map[AFI_MAX][SAFI_MAX]; | |
73ac8160 | 564 | |
d62a17ae | 565 | /* BGP redistribute configuration. */ |
566 | struct list *redist[AFI_MAX][ZEBRA_ROUTE_MAX]; | |
718e3744 | 567 | |
318cac96 | 568 | /* Allocate MPLS labels */ |
d7c0a89a | 569 | uint8_t allocate_mpls_labels[AFI_MAX][SAFI_MAX]; |
318cac96 | 570 | |
f3d32faa PG |
571 | /* Allocate hash entries to store policy routing information |
572 | * The hash are used to host pbr rules somewhere. | |
573 | * Actually, pbr will only be used by flowspec | |
574 | * those hash elements will have relationship together as | |
575 | * illustrated in below diagram: | |
576 | * | |
577 | * pbr_action a <----- pbr_match i <--- pbr_match_entry 1..n | |
578 | * <----- pbr_match j <--- pbr_match_entry 1..m | |
27e376d4 | 579 | * <----- pbr_rule k |
f3d32faa PG |
580 | * |
581 | * - here in BGP structure, the list of match and actions will | |
582 | * stand for the list of ipset sets, and table_ids in the kernel | |
583 | * - the arrow above between pbr_match and pbr_action indicate | |
584 | * that a backpointer permits match to find the action | |
585 | * - the arrow betwen match_entry and match is a hash list | |
586 | * contained in match, that lists the whole set of entries | |
587 | */ | |
588 | struct hash *pbr_match_hash; | |
27e376d4 | 589 | struct hash *pbr_rule_hash; |
f3d32faa PG |
590 | struct hash *pbr_action_hash; |
591 | ||
d62a17ae | 592 | /* timer to re-evaluate neighbor default-originate route-maps */ |
593 | struct thread *t_rmap_def_originate_eval; | |
0de4848d DS |
594 | #define RMAP_DEFAULT_ORIGINATE_EVAL_TIMER 5 |
595 | ||
d62a17ae | 596 | /* BGP distance configuration. */ |
d7c0a89a QY |
597 | uint8_t distance_ebgp[AFI_MAX][SAFI_MAX]; |
598 | uint8_t distance_ibgp[AFI_MAX][SAFI_MAX]; | |
599 | uint8_t distance_local[AFI_MAX][SAFI_MAX]; | |
d62a17ae | 600 | |
601 | /* BGP default local-preference. */ | |
d7c0a89a | 602 | uint32_t default_local_pref; |
d62a17ae | 603 | |
604 | /* BGP default subgroup pkt queue max */ | |
d7c0a89a | 605 | uint32_t default_subgroup_pkt_queue_max; |
d62a17ae | 606 | |
607 | /* BGP default timer. */ | |
d7c0a89a QY |
608 | uint32_t default_holdtime; |
609 | uint32_t default_keepalive; | |
5d5393b9 | 610 | uint32_t default_connect_retry; |
6c537a18 | 611 | uint32_t default_delayopen; |
d62a17ae | 612 | |
b042667a TI |
613 | /* BGP minimum holdtime. */ |
614 | uint16_t default_min_holdtime; | |
615 | ||
d62a17ae | 616 | /* BGP graceful restart */ |
d7c0a89a QY |
617 | uint32_t restart_time; |
618 | uint32_t stalepath_time; | |
b0965c44 | 619 | uint32_t select_defer_time; |
620 | struct graceful_restart_info gr_info[AFI_MAX][SAFI_MAX]; | |
2d3dd828 | 621 | uint32_t rib_stale_time; |
622 | ||
8606be87 DA |
623 | /* BGP Long-lived Graceful Restart */ |
624 | uint32_t llgr_stale_time; | |
625 | ||
cfd47646 | 626 | #define BGP_ROUTE_SELECT_DELAY 1 |
627 | #define BGP_MAX_BEST_ROUTE_SELECT 10000 | |
d62a17ae | 628 | /* Maximum-paths configuration */ |
629 | struct bgp_maxpaths_cfg { | |
d7c0a89a QY |
630 | uint16_t maxpaths_ebgp; |
631 | uint16_t maxpaths_ibgp; | |
aa53c036 | 632 | bool same_clusterlen; |
d62a17ae | 633 | } maxpaths[AFI_MAX][SAFI_MAX]; |
cb1faec9 | 634 | |
555e09d4 QY |
635 | _Atomic uint32_t wpkt_quanta; // max # packets to write per i/o cycle |
636 | _Atomic uint32_t rpkt_quanta; // max # packets to read per i/o cycle | |
637 | ||
37a333fe QY |
638 | /* Automatic coalesce adjust on/off */ |
639 | bool heuristic_coalesce; | |
14b8641a QY |
640 | /* Actual coalesce time */ |
641 | uint32_t coalesce_time; | |
adbac85e | 642 | |
f26845f9 QY |
643 | /* Auto-shutdown new peers */ |
644 | bool autoshutdown; | |
645 | ||
dcc68b5e | 646 | struct bgp_addpath_bgp_data tx_addpath; |
65efcfce | 647 | |
1e20238a | 648 | #ifdef ENABLE_BGP_VNC |
d62a17ae | 649 | struct rfapi_cfg *rfapi_cfg; |
650 | struct rfapi *rfapi; | |
65efcfce | 651 | #endif |
19df7279 | 652 | |
d62a17ae | 653 | /* EVPN related information */ |
14c1a7bf | 654 | |
d62a17ae | 655 | /* EVI hash table */ |
656 | struct hash *vnihash; | |
14c1a7bf | 657 | |
021b6596 AD |
658 | /* |
659 | * VNI hash table based on SVI ifindex as its key. | |
660 | * We use SVI ifindex as key to lookup a VNI table for gateway IP | |
661 | * overlay index recursive lookup. | |
662 | * For this purpose, a hashtable is added which optimizes this lookup. | |
663 | */ | |
664 | struct hash *vni_svi_hash; | |
665 | ||
1a98c087 MK |
666 | /* EVPN enable - advertise gateway macip routes */ |
667 | int advertise_gw_macip; | |
668 | ||
d62a17ae | 669 | /* EVPN enable - advertise local VNIs and their MACs etc. */ |
670 | int advertise_all_vni; | |
14c1a7bf | 671 | |
fb29348a DA |
672 | /* draft-ietf-idr-deprecate-as-set-confed-set |
673 | * Reject aspaths with AS_SET and/or AS_CONFED_SET. | |
674 | */ | |
675 | bool reject_as_sets; | |
fb29348a | 676 | |
85c8d83b CS |
677 | struct bgp_evpn_info *evpn_info; |
678 | ||
bf1061d8 VB |
679 | /* EVPN - use RFC 8365 to auto-derive RT */ |
680 | int advertise_autort_rfc8365; | |
681 | ||
fd069644 DS |
682 | /* |
683 | * Flooding mechanism for BUM packets for VxLAN-EVPN. | |
684 | */ | |
685 | enum vxlan_flood_control vxlan_flood_ctrl; | |
686 | ||
d62a17ae | 687 | /* Hash table of Import RTs to EVIs */ |
688 | struct hash *import_rt_hash; | |
14c1a7bf | 689 | |
10ebe1ab MK |
690 | /* Hash table of VRF import RTs to VRFs */ |
691 | struct hash *vrf_import_rt_hash; | |
692 | ||
fe1dc5a3 MK |
693 | /* L3-VNI corresponding to this vrf */ |
694 | vni_t l3vni; | |
695 | ||
696 | /* router-mac to be used in mac-ip routes for this vrf */ | |
697 | struct ethaddr rmac; | |
698 | ||
b67a60d2 | 699 | /* originator ip - to be used as NH for type-5 routes */ |
700 | struct in_addr originator_ip; | |
701 | ||
0483af6e | 702 | /* SVI associated with the L3-VNI corresponding to this vrf */ |
703 | ifindex_t l3vni_svi_ifindex; | |
704 | ||
c589d847 AK |
705 | /* RB tree of ES-VRFs */ |
706 | struct bgp_es_vrf_rb_head es_vrf_rb_tree; | |
707 | ||
090efa2f AK |
708 | /* Hash table of EVPN nexthops maintained per-tenant-VRF */ |
709 | struct hash *evpn_nh_table; | |
710 | ||
dc6cef73 AD |
711 | /* |
712 | * Flag resolve_overlay_index is used for recursive resolution | |
713 | * procedures for EVPN type-5 route's gateway IP overlay index. | |
714 | * When this flag is set, we build remote-ip-hash for | |
715 | * all L2VNIs and resolve overlay index nexthops using this hash. | |
716 | * Overlay index nexthops remain unresolved if this flag is not set. | |
717 | */ | |
718 | bool resolve_overlay_index; | |
719 | ||
fe1dc5a3 MK |
720 | /* vrf flags */ |
721 | uint32_t vrf_flags; | |
676f83b9 | 722 | #define BGP_VRF_AUTO (1 << 0) |
154faa50 MK |
723 | #define BGP_VRF_IMPORT_RT_CFGD (1 << 1) |
724 | #define BGP_VRF_EXPORT_RT_CFGD (1 << 2) | |
58d8948c SW |
725 | #define BGP_VRF_IMPORT_AUTO_RT_CFGD (1 << 3) /* retain auto when cfgd */ |
726 | #define BGP_VRF_EXPORT_AUTO_RT_CFGD (1 << 4) /* retain auto when cfgd */ | |
727 | #define BGP_VRF_RD_CFGD (1 << 5) | |
728 | #define BGP_VRF_L3VNI_PREFIX_ROUTES_ONLY (1 << 6) | |
527588aa CS |
729 | /* per-VRF toVPN SID */ |
730 | #define BGP_VRF_TOVPN_SID_AUTO (1 << 7) | |
23e386ac | 731 | |
676f83b9 | 732 | /* unique ID for auto derivation of RD for this vrf */ |
733 | uint16_t vrf_rd_id; | |
734 | ||
92708db6 | 735 | /* Automatically derived RD for this VRF */ |
736 | struct prefix_rd vrf_prd_auto; | |
737 | ||
676f83b9 | 738 | /* RD for this VRF */ |
739 | struct prefix_rd vrf_prd; | |
fa566a94 | 740 | char *vrf_prd_pretty; |
c581d8b0 MK |
741 | |
742 | /* import rt list for the vrf instance */ | |
743 | struct list *vrf_import_rtl; | |
744 | ||
745 | /* export rt list for the vrf instance */ | |
746 | struct list *vrf_export_rtl; | |
fe1dc5a3 | 747 | |
6a8657d0 MK |
748 | /* list of corresponding l2vnis (struct bgpevpn) */ |
749 | struct list *l2vnis; | |
750 | ||
53c84f78 MK |
751 | /* route map for advertise ipv4/ipv6 unicast (type-5 routes) */ |
752 | struct bgp_rmap adv_cmd_rmap[AFI_MAX][SAFI_MAX]; | |
753 | ||
e70e9f8e | 754 | struct vpn_policy vpn_policy[AFI_MAX]; |
ddb5b488 | 755 | |
4762c213 PG |
756 | struct bgp_pbr_config *bgp_pbr_cfg; |
757 | ||
36dc7588 | 758 | /* Count of peers in established state */ |
759 | uint32_t established_peers; | |
760 | ||
f7e1c681 | 761 | /* Weighted ECMP related config. */ |
762 | enum bgp_link_bw_handling lb_handling; | |
763 | ||
b6c386bb DS |
764 | /* Process Queue for handling routes */ |
765 | struct work_queue *process_queue; | |
e73c112e | 766 | |
f852eb98 PG |
767 | bool fast_convergence; |
768 | ||
7f7940e6 | 769 | /* BGP Conditional advertisement */ |
389e4f92 | 770 | uint32_t condition_check_period; |
c385f82a | 771 | uint32_t condition_filter_count; |
7f7940e6 | 772 | struct thread *t_condition_check; |
b6c386bb | 773 | |
92a9e6f2 HS |
774 | /* BGP VPN SRv6 backend */ |
775 | bool srv6_enabled; | |
776 | char srv6_locator_name[SRV6_LOCNAME_SIZE]; | |
777 | struct list *srv6_locator_chunks; | |
778 | struct list *srv6_functions; | |
527588aa CS |
779 | uint32_t tovpn_sid_index; /* unset => set to 0 */ |
780 | struct in6_addr *tovpn_sid; | |
781 | struct srv6_locator_chunk *tovpn_sid_locator; | |
782 | uint32_t tovpn_sid_transpose_label; | |
783 | struct in6_addr *tovpn_zebra_vrf_sid_last_sent; | |
784 | ||
d1adb448 PG |
785 | /* TCP keepalive parameters for BGP connection */ |
786 | uint16_t tcp_keepalive_idle; | |
787 | uint16_t tcp_keepalive_intvl; | |
788 | uint16_t tcp_keepalive_probes; | |
92a9e6f2 | 789 | |
b17826b7 DS |
790 | struct timeval ebgprequirespolicywarning; |
791 | #define FIFTEENMINUTE2USEC (int64_t)15 * 60 * 1000000 | |
792 | ||
8666265e DS |
793 | bool allow_martian; |
794 | ||
e55b0883 PG |
795 | enum asnotation_mode asnotation; |
796 | ||
96244aca | 797 | QOBJ_FIELDS; |
718e3744 | 798 | }; |
96244aca | 799 | DECLARE_QOBJ_TYPE(bgp); |
718e3744 | 800 | |
4cd690ae PG |
801 | struct bgp_interface { |
802 | #define BGP_INTERFACE_MPLS_BGP_FORWARDING (1 << 0) | |
803 | uint32_t flags; | |
804 | }; | |
805 | ||
8451921b | 806 | DECLARE_HOOK(bgp_inst_delete, (struct bgp *bgp), (bgp)); |
2b9bcf30 DL |
807 | DECLARE_HOOK(bgp_inst_config_write, |
808 | (struct bgp *bgp, struct vty *vty), | |
8451921b | 809 | (bgp, vty)); |
aa24a36a | 810 | DECLARE_HOOK(bgp_config_end, (struct bgp *bgp), (bgp)); |
2b9bcf30 | 811 | |
36235319 QY |
812 | /* Thread callback information */ |
813 | struct afi_safi_info { | |
814 | afi_t afi; | |
815 | safi_t safi; | |
816 | struct bgp *bgp; | |
817 | }; | |
cfd47646 | 818 | |
2a3d5731 | 819 | #define BGP_ROUTE_ADV_HOLD(bgp) (bgp->main_peers_update_hold) |
d889623f | 820 | |
d62a17ae | 821 | #define IS_BGP_INST_KNOWN_TO_ZEBRA(bgp) \ |
822 | (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT \ | |
823 | || (bgp->inst_type == BGP_INSTANCE_TYPE_VRF \ | |
824 | && bgp->vrf_id != VRF_UNKNOWN)) | |
ad4cbda1 | 825 | |
36235319 | 826 | #define BGP_SELECT_DEFER_DISABLE(bgp) \ |
892fedb6 | 827 | (CHECK_FLAG(bgp->flags, BGP_FLAG_SELECT_DEFER_DISABLE)) |
cfd47646 | 828 | |
9acb67cb DS |
829 | #define BGP_SUPPRESS_FIB_ENABLED(bgp) \ |
830 | (CHECK_FLAG(bgp->flags, BGP_FLAG_SUPPRESS_FIB_PENDING) \ | |
831 | || bm->wait_for_fib) | |
c208c586 | 832 | |
718e3744 | 833 | /* BGP peer-group support. */ |
d62a17ae | 834 | struct peer_group { |
835 | /* Name of the peer-group. */ | |
836 | char *name; | |
718e3744 | 837 | |
d62a17ae | 838 | /* Pointer to BGP. */ |
839 | struct bgp *bgp; | |
718e3744 | 840 | |
d62a17ae | 841 | /* Peer-group client list. */ |
842 | struct list *peer; | |
f14e6fdb | 843 | |
d62a17ae | 844 | /** Dynamic neighbor listening ranges */ |
845 | struct list *listen_range[AFI_MAX]; | |
846 | ||
847 | /* Peer-group config */ | |
848 | struct peer *conf; | |
718e3744 | 849 | }; |
850 | ||
851 | /* BGP Notify message format. */ | |
d62a17ae | 852 | struct bgp_notify { |
d7c0a89a QY |
853 | uint8_t code; |
854 | uint8_t subcode; | |
d62a17ae | 855 | char *data; |
856 | bgp_size_t length; | |
d7c0a89a | 857 | uint8_t *raw_data; |
eea685b6 | 858 | bool hard_reset; |
718e3744 | 859 | }; |
860 | ||
861 | /* Next hop self address. */ | |
d62a17ae | 862 | struct bgp_nexthop { |
863 | struct interface *ifp; | |
864 | struct in_addr v4; | |
865 | struct in6_addr v6_global; | |
866 | struct in6_addr v6_local; | |
718e3744 | 867 | }; |
868 | ||
a82478b9 DS |
869 | /* BGP addpath values */ |
870 | #define BGP_ADDPATH_RX 1 | |
871 | #define BGP_ADDPATH_TX 2 | |
872 | #define BGP_ADDPATH_ID_LEN 4 | |
873 | ||
adbac85e DW |
874 | #define BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE 1 |
875 | ||
3f54c705 | 876 | /* Route map direction */ |
2a3d5731 DW |
877 | #define RMAP_IN 0 |
878 | #define RMAP_OUT 1 | |
879 | #define RMAP_MAX 2 | |
fee0f4c6 | 880 | |
e2521429 DA |
881 | #define BGP_DEFAULT_TTL 1 |
882 | #define BGP_GTSM_HOPS_DISABLED 0 | |
883 | #define BGP_GTSM_HOPS_CONNECTED 1 | |
a0903cd2 | 884 | |
7f7940e6 | 885 | /* Advertise map */ |
cf2ad4d8 MK |
886 | #define CONDITION_NON_EXIST false |
887 | #define CONDITION_EXIST true | |
c385f82a | 888 | |
ecf2b628 | 889 | enum update_type { UPDATE_TYPE_WITHDRAW, UPDATE_TYPE_ADVERTISE }; |
7f7940e6 | 890 | |
65efcfce LB |
891 | #include "filter.h" |
892 | ||
718e3744 | 893 | /* BGP filter structure. */ |
d62a17ae | 894 | struct bgp_filter { |
895 | /* Distribute-list. */ | |
896 | struct { | |
897 | char *name; | |
898 | struct access_list *alist; | |
899 | } dlist[FILTER_MAX]; | |
900 | ||
901 | /* Prefix-list. */ | |
902 | struct { | |
903 | char *name; | |
904 | struct prefix_list *plist; | |
905 | } plist[FILTER_MAX]; | |
906 | ||
907 | /* Filter-list. */ | |
908 | struct { | |
909 | char *name; | |
910 | struct as_list *aslist; | |
911 | } aslist[FILTER_MAX]; | |
912 | ||
913 | /* Route-map. */ | |
914 | struct { | |
915 | char *name; | |
916 | struct route_map *map; | |
917 | } map[RMAP_MAX]; | |
918 | ||
919 | /* Unsuppress-map. */ | |
920 | struct { | |
921 | char *name; | |
922 | struct route_map *map; | |
923 | } usmap; | |
7f7940e6 MK |
924 | |
925 | /* Advertise-map */ | |
926 | struct { | |
927 | char *aname; | |
928 | struct route_map *amap; | |
929 | ||
930 | bool condition; | |
931 | ||
932 | char *cname; | |
933 | struct route_map *cmap; | |
934 | ||
fa36596c | 935 | enum update_type update_type; |
7f7940e6 | 936 | } advmap; |
718e3744 | 937 | }; |
938 | ||
6d85b15b JBD |
939 | /* IBGP/EBGP identifier. We also have a CONFED peer, which is to say, |
940 | a peer who's AS is part of our Confederation. */ | |
3061acc2 | 941 | enum bgp_peer_sort { |
faa16034 DS |
942 | BGP_PEER_UNSPECIFIED, |
943 | BGP_PEER_IBGP, | |
d62a17ae | 944 | BGP_PEER_EBGP, |
945 | BGP_PEER_INTERNAL, | |
946 | BGP_PEER_CONFED, | |
3061acc2 | 947 | }; |
6d85b15b | 948 | |
d6661008 DS |
949 | /* BGP message header and packet size. */ |
950 | #define BGP_MARKER_SIZE 16 | |
951 | #define BGP_HEADER_SIZE 19 | |
556beacf QY |
952 | #define BGP_STANDARD_MESSAGE_MAX_PACKET_SIZE 4096 |
953 | #define BGP_EXTENDED_MESSAGE_MAX_PACKET_SIZE 65535 | |
954 | #define BGP_MAX_PACKET_SIZE BGP_EXTENDED_MESSAGE_MAX_PACKET_SIZE | |
0a91ff55 | 955 | #define BGP_MAX_PACKET_SIZE_OVERFLOW 1024 |
d6661008 | 956 | |
3f9c7369 DS |
957 | /* |
958 | * Trigger delay for bgp_announce_route(). | |
959 | */ | |
960 | #define BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS 100 | |
961 | #define BGP_ANNOUNCE_ROUTE_DELAY_MS 500 | |
962 | ||
d62a17ae | 963 | struct peer_af { |
964 | /* back pointer to the peer */ | |
965 | struct peer *peer; | |
3f9c7369 | 966 | |
d62a17ae | 967 | /* which subgroup the peer_af belongs to */ |
968 | struct update_subgroup *subgroup; | |
3f9c7369 | 969 | |
d62a17ae | 970 | /* for being part of an update subgroup's peer list */ |
971 | LIST_ENTRY(peer_af) subgrp_train; | |
3f9c7369 | 972 | |
d62a17ae | 973 | /* for being part of a packet's peer list */ |
974 | LIST_ENTRY(peer_af) pkt_train; | |
3f9c7369 | 975 | |
d62a17ae | 976 | struct bpacket *next_pkt_to_send; |
3f9c7369 | 977 | |
d62a17ae | 978 | /* |
979 | * Trigger timer for bgp_announce_route(). | |
980 | */ | |
981 | struct thread *t_announce_route; | |
3f9c7369 | 982 | |
d62a17ae | 983 | afi_t afi; |
984 | safi_t safi; | |
985 | int afid; | |
3f9c7369 | 986 | }; |
b0965c44 | 987 | /* BGP GR per peer ds */ |
988 | ||
2ba1fe69 | 989 | #define BGP_PEER_GR_MODE 5 |
990 | #define BGP_PEER_GR_EVENT_CMD 6 | |
b0965c44 | 991 | |
992 | enum peer_mode { | |
993 | PEER_HELPER = 0, | |
994 | PEER_GR, | |
995 | PEER_DISABLE, | |
996 | PEER_INVALID, | |
997 | PEER_GLOBAL_INHERIT /* This is the default mode */ | |
998 | ||
999 | }; | |
1000 | ||
1001 | enum peer_gr_command { | |
1002 | PEER_GR_CMD = 0, | |
1003 | NO_PEER_GR_CMD, | |
2ba1fe69 | 1004 | PEER_DISABLE_CMD, |
b0965c44 | 1005 | NO_PEER_DISABLE_CMD, |
1006 | PEER_HELPER_CMD, | |
1007 | NO_PEER_HELPER_CMD | |
1008 | }; | |
1009 | ||
1010 | typedef unsigned int (*bgp_peer_gr_action_ptr)(struct peer *, int, int); | |
1011 | ||
1012 | struct bgp_peer_gr { | |
1013 | enum peer_mode next_state; | |
1014 | bgp_peer_gr_action_ptr action_fun; | |
1015 | }; | |
1016 | ||
21e8caa2 QY |
1017 | /* |
1018 | * BGP FSM event codes, per RFC 4271 ss. 8.1 | |
1019 | */ | |
1020 | enum bgp_fsm_rfc_codes { | |
1021 | BGP_FSM_ManualStart = 1, | |
1022 | BGP_FSM_ManualStop = 2, | |
1023 | BGP_FSM_AutomaticStart = 3, | |
1024 | BGP_FSM_ManualStart_with_PassiveTcpEstablishment = 4, | |
1025 | BGP_FSM_AutomaticStart_with_PassiveTcpEstablishment = 5, | |
1026 | BGP_FSM_AutomaticStart_with_DampPeerOscillations = 6, | |
1027 | BGP_FSM_AutomaticStart_with_DampPeerOscillations_and_PassiveTcpEstablishment = | |
1028 | 7, | |
1029 | BGP_FSM_AutomaticStop = 8, | |
1030 | BGP_FSM_ConnectRetryTimer_Expires = 9, | |
1031 | BGP_FSM_HoldTimer_Expires = 10, | |
1032 | BGP_FSM_KeepaliveTimer_Expires = 11, | |
1033 | BGP_FSM_DelayOpenTimer_Expires = 12, | |
1034 | BGP_FSM_IdleHoldTimer_Expires = 13, | |
1035 | BGP_FSM_TcpConnection_Valid = 14, | |
1036 | BGP_FSM_Tcp_CR_Invalid = 15, | |
1037 | BGP_FSM_Tcp_CR_Acked = 16, | |
1038 | BGP_FSM_TcpConnectionConfirmed = 17, | |
1039 | BGP_FSM_TcpConnectionFails = 18, | |
1040 | BGP_FSM_BGPOpen = 19, | |
1041 | BGP_FSM_BGPOpen_with_DelayOpenTimer_running = 20, | |
1042 | BGP_FSM_BGPHeaderErr = 21, | |
1043 | BGP_FSM_BGPOpenMsgErr = 22, | |
1044 | BGP_FSM_OpenCollisionDump = 23, | |
1045 | BGP_FSM_NotifMsgVerErr = 24, | |
1046 | BGP_FSM_NotifMsg = 25, | |
1047 | BGP_FSM_KeepAliveMsg = 26, | |
1048 | BGP_FSM_UpdateMsg = 27, | |
1049 | BGP_FSM_UpdateMsgErr = 28 | |
1050 | }; | |
1051 | ||
1052 | /* | |
1053 | * BGP finite state machine events | |
1054 | * | |
1055 | * Note: these do not correspond to RFC-defined event codes. Those are | |
1056 | * defined elsewhere. | |
1057 | */ | |
d1060698 DS |
1058 | enum bgp_fsm_events { |
1059 | BGP_Start = 1, | |
1060 | BGP_Stop, | |
1061 | TCP_connection_open, | |
6c537a18 | 1062 | TCP_connection_open_w_delay, |
d1060698 DS |
1063 | TCP_connection_closed, |
1064 | TCP_connection_open_failed, | |
1065 | TCP_fatal_error, | |
1066 | ConnectRetry_timer_expired, | |
1067 | Hold_Timer_expired, | |
1068 | KeepAlive_timer_expired, | |
6c537a18 | 1069 | DelayOpen_timer_expired, |
d1060698 DS |
1070 | Receive_OPEN_message, |
1071 | Receive_KEEPALIVE_message, | |
1072 | Receive_UPDATE_message, | |
1073 | Receive_NOTIFICATION_message, | |
1074 | Clearing_Completed, | |
1075 | BGP_EVENTS_MAX, | |
1076 | }; | |
3f9c7369 | 1077 | |
8398b5d5 DS |
1078 | /* BGP finite state machine status. */ |
1079 | enum bgp_fsm_status { | |
1080 | Idle = 1, | |
1081 | Connect, | |
1082 | Active, | |
1083 | OpenSent, | |
1084 | OpenConfirm, | |
1085 | Established, | |
1086 | Clearing, | |
1087 | Deleted, | |
1088 | BGP_STATUS_MAX, | |
1089 | }; | |
1090 | ||
169afe9d QY |
1091 | #define PEER_HOSTNAME(peer) ((peer)->host ? (peer)->host : "(unknown peer)") |
1092 | ||
8606be87 DA |
1093 | struct llgr_info { |
1094 | uint32_t stale_time; | |
1095 | uint8_t flags; | |
1096 | }; | |
1097 | ||
718e3744 | 1098 | /* BGP neighbor structure. */ |
d62a17ae | 1099 | struct peer { |
1100 | /* BGP structure. */ | |
1101 | struct bgp *bgp; | |
1102 | ||
1103 | /* reference count, primarily to allow bgp_process'ing of route_node's | |
1104 | * to be done after a struct peer is deleted. | |
1105 | * | |
1106 | * named 'lock' for hysterical reasons within Quagga. | |
1107 | */ | |
1108 | int lock; | |
1109 | ||
1110 | /* BGP peer group. */ | |
1111 | struct peer_group *group; | |
1112 | uint64_t version[AFI_MAX][SAFI_MAX]; | |
1113 | ||
1114 | /* BGP peer_af structures, per configured AF on this peer */ | |
1115 | struct peer_af *peer_af_array[BGP_AF_MAX]; | |
1116 | ||
1117 | /* Peer's remote AS number. */ | |
1118 | int as_type; | |
1119 | as_t as; | |
de76ed8a PG |
1120 | /* for vty as format */ |
1121 | char *as_pretty; | |
d62a17ae | 1122 | |
1123 | /* Peer's local AS number. */ | |
1124 | as_t local_as; | |
1125 | ||
3061acc2 | 1126 | enum bgp_peer_sort sort; |
d62a17ae | 1127 | |
1128 | /* Peer's Change local AS number. */ | |
1129 | as_t change_local_as; | |
de76ed8a PG |
1130 | /* for vty as format */ |
1131 | char *change_local_as_pretty; | |
d62a17ae | 1132 | |
1133 | /* Remote router ID. */ | |
1134 | struct in_addr remote_id; | |
1135 | ||
1136 | /* Local router ID. */ | |
1137 | struct in_addr local_id; | |
1138 | ||
1139 | /* Packet receive and send buffer. */ | |
424ab01d QY |
1140 | pthread_mutex_t io_mtx; // guards ibuf, obuf |
1141 | struct stream_fifo *ibuf; // packets waiting to be processed | |
1142 | struct stream_fifo *obuf; // packets waiting to be written | |
1143 | ||
338f4a78 | 1144 | /* used as a block to deposit raw wire data to */ |
556beacf | 1145 | uint8_t ibuf_scratch[BGP_EXTENDED_MESSAGE_MAX_PACKET_SIZE |
338f4a78 | 1146 | * BGP_READ_PACKET_MAX]; |
74ffbfe6 QY |
1147 | struct ringbuf *ibuf_work; // WiP buffer used by bgp_read() only |
1148 | struct stream *obuf_work; // WiP buffer used to construct packets | |
424ab01d QY |
1149 | |
1150 | struct stream *curr; // the current packet being parsed | |
d62a17ae | 1151 | |
1152 | /* We use a separate stream to encode MP_REACH_NLRI for efficient | |
424ab01d | 1153 | * NLRI packing. peer->obuf_work stores all the other attributes. The |
d62a17ae | 1154 | * actual packet is then constructed by concatenating the two. |
1155 | */ | |
1156 | struct stream *scratch; | |
1157 | ||
1158 | /* the doppelganger peer structure, due to dual TCP conn setup */ | |
1159 | struct peer *doppelganger; | |
1160 | ||
1161 | /* Status of the peer. */ | |
8398b5d5 DS |
1162 | enum bgp_fsm_status status; |
1163 | enum bgp_fsm_status ostatus; | |
d62a17ae | 1164 | |
1165 | /* FSM events, stored for debug purposes. | |
1166 | * Note: uchar used for reduced memory usage. | |
1167 | */ | |
d1060698 DS |
1168 | enum bgp_fsm_events cur_event; |
1169 | enum bgp_fsm_events last_event; | |
1170 | enum bgp_fsm_events last_major_event; | |
d62a17ae | 1171 | |
1172 | /* Peer index, used for dumping TABLE_DUMP_V2 format */ | |
1173 | uint16_t table_dump_index; | |
1174 | ||
1175 | /* Peer information */ | |
1176 | int fd; /* File descriptor */ | |
1177 | int ttl; /* TTL of TCP connection to the peer. */ | |
1178 | int rtt; /* Estimated round-trip-time from TCP_INFO */ | |
8336c896 DA |
1179 | int rtt_expected; /* Expected round-trip-time for a peer */ |
1180 | uint8_t rtt_keepalive_rcv; /* Received count for RTT shutdown */ | |
1181 | uint8_t rtt_keepalive_conf; /* Configured count for RTT shutdown */ | |
d62a17ae | 1182 | int gtsm_hops; /* minimum hopcount to peer */ |
1183 | char *desc; /* Description of the peer. */ | |
1184 | unsigned short port; /* Destination port for peer */ | |
1185 | char *host; /* Printable address of the peer. */ | |
1186 | union sockunion su; /* Sockunion address of the peer. */ | |
a80beece | 1187 | #define BGP_PEER_SU_UNSPEC(peer) (peer->su.sa.sa_family == AF_UNSPEC) |
d62a17ae | 1188 | time_t uptime; /* Last Up/Down time */ |
1189 | time_t readtime; /* Last read time */ | |
1190 | time_t resettime; /* Last reset time */ | |
1191 | ||
d62a17ae | 1192 | char *conf_if; /* neighbor interface config name. */ |
1193 | struct interface *ifp; /* corresponding interface */ | |
1194 | char *ifname; /* bind interface name. */ | |
1195 | char *update_if; | |
1196 | union sockunion *update_source; | |
1197 | ||
1198 | union sockunion *su_local; /* Sockunion of local address. */ | |
1199 | union sockunion *su_remote; /* Sockunion of remote address. */ | |
1200 | int shared_network; /* Is this peer shared same network. */ | |
1201 | struct bgp_nexthop nexthop; /* Nexthop */ | |
1202 | ||
d864dd9e EB |
1203 | /* Roles in bgp session */ |
1204 | uint8_t local_role; | |
8f2d6021 | 1205 | uint8_t remote_role; |
d864dd9e EB |
1206 | #define ROLE_PROVIDER 0 |
1207 | #define ROLE_RS_SERVER 1 | |
1208 | #define ROLE_RS_CLIENT 2 | |
1209 | #define ROLE_CUSTOMER 3 | |
1210 | #define ROLE_PEER 4 | |
8f2d6021 | 1211 | #define ROLE_UNDEFINED 255 |
d864dd9e EB |
1212 | |
1213 | #define ROLE_NAME_MAX_LEN 20 | |
1214 | ||
d62a17ae | 1215 | /* Peer address family configuration. */ |
d7c0a89a QY |
1216 | uint8_t afc[AFI_MAX][SAFI_MAX]; |
1217 | uint8_t afc_nego[AFI_MAX][SAFI_MAX]; | |
1218 | uint8_t afc_adv[AFI_MAX][SAFI_MAX]; | |
1219 | uint8_t afc_recv[AFI_MAX][SAFI_MAX]; | |
d62a17ae | 1220 | |
1221 | /* Capability flags (reset in bgp_stop) */ | |
d7c0a89a | 1222 | uint32_t cap; |
e9faf4be QY |
1223 | #define PEER_CAP_REFRESH_ADV (1U << 0) /* refresh advertised */ |
1224 | #define PEER_CAP_REFRESH_OLD_RCV (1U << 1) /* refresh old received */ | |
1225 | #define PEER_CAP_REFRESH_NEW_RCV (1U << 2) /* refresh rfc received */ | |
1226 | #define PEER_CAP_DYNAMIC_ADV (1U << 3) /* dynamic advertised */ | |
1227 | #define PEER_CAP_DYNAMIC_RCV (1U << 4) /* dynamic received */ | |
1228 | #define PEER_CAP_RESTART_ADV (1U << 5) /* restart advertised */ | |
1229 | #define PEER_CAP_RESTART_RCV (1U << 6) /* restart received */ | |
1230 | #define PEER_CAP_AS4_ADV (1U << 7) /* as4 advertised */ | |
1231 | #define PEER_CAP_AS4_RCV (1U << 8) /* as4 received */ | |
54394daa DA |
1232 | /* sent graceful-restart restart (R) bit */ |
1233 | #define PEER_CAP_GRACEFUL_RESTART_R_BIT_ADV (1U << 9) | |
1234 | /* received graceful-restart restart (R) bit */ | |
1235 | #define PEER_CAP_GRACEFUL_RESTART_R_BIT_RCV (1U << 10) | |
e9faf4be QY |
1236 | #define PEER_CAP_ADDPATH_ADV (1U << 11) /* addpath advertised */ |
1237 | #define PEER_CAP_ADDPATH_RCV (1U << 12) /* addpath received */ | |
1238 | #define PEER_CAP_ENHE_ADV (1U << 13) /* Extended nexthop advertised */ | |
1239 | #define PEER_CAP_ENHE_RCV (1U << 14) /* Extended nexthop received */ | |
1240 | #define PEER_CAP_HOSTNAME_ADV (1U << 15) /* hostname advertised */ | |
1241 | #define PEER_CAP_HOSTNAME_RCV (1U << 16) /* hostname received */ | |
9af52ccf DA |
1242 | #define PEER_CAP_ENHANCED_RR_ADV (1U << 17) /* enhanced rr advertised */ |
1243 | #define PEER_CAP_ENHANCED_RR_RCV (1U << 18) /* enhanced rr received */ | |
ef56aee4 DA |
1244 | #define PEER_CAP_EXTENDED_MESSAGE_ADV (1U << 19) |
1245 | #define PEER_CAP_EXTENDED_MESSAGE_RCV (1U << 20) | |
8606be87 DA |
1246 | #define PEER_CAP_LLGR_ADV (1U << 21) |
1247 | #define PEER_CAP_LLGR_RCV (1U << 22) | |
eea685b6 DA |
1248 | /* sent graceful-restart notification (N) bit */ |
1249 | #define PEER_CAP_GRACEFUL_RESTART_N_BIT_ADV (1U << 23) | |
1250 | /* received graceful-restart notification (N) bit */ | |
1251 | #define PEER_CAP_GRACEFUL_RESTART_N_BIT_RCV (1U << 24) | |
d864dd9e EB |
1252 | #define PEER_CAP_ROLE_ADV (1U << 25) /* role advertised */ |
1253 | #define PEER_CAP_ROLE_RCV (1U << 26) /* role received */ | |
234f6fd4 DA |
1254 | #define PEER_CAP_SOFT_VERSION_ADV (1U << 27) |
1255 | #define PEER_CAP_SOFT_VERSION_RCV (1U << 28) | |
718e3744 | 1256 | |
d62a17ae | 1257 | /* Capability flags (reset in bgp_stop) */ |
d7c0a89a | 1258 | uint32_t af_cap[AFI_MAX][SAFI_MAX]; |
e9faf4be QY |
1259 | #define PEER_CAP_ORF_PREFIX_SM_ADV (1U << 0) /* send-mode advertised */ |
1260 | #define PEER_CAP_ORF_PREFIX_RM_ADV (1U << 1) /* receive-mode advertised */ | |
1261 | #define PEER_CAP_ORF_PREFIX_SM_RCV (1U << 2) /* send-mode received */ | |
1262 | #define PEER_CAP_ORF_PREFIX_RM_RCV (1U << 3) /* receive-mode received */ | |
1263 | #define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1U << 4) /* send-mode received */ | |
1264 | #define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1U << 5) /* receive-mode received */ | |
1265 | #define PEER_CAP_RESTART_AF_RCV (1U << 6) /* graceful restart afi/safi received */ | |
1266 | #define PEER_CAP_RESTART_AF_PRESERVE_RCV (1U << 7) /* graceful restart afi/safi F-bit received */ | |
1267 | #define PEER_CAP_ADDPATH_AF_TX_ADV (1U << 8) /* addpath tx advertised */ | |
1268 | #define PEER_CAP_ADDPATH_AF_TX_RCV (1U << 9) /* addpath tx received */ | |
1269 | #define PEER_CAP_ADDPATH_AF_RX_ADV (1U << 10) /* addpath rx advertised */ | |
1270 | #define PEER_CAP_ADDPATH_AF_RX_RCV (1U << 11) /* addpath rx received */ | |
1271 | #define PEER_CAP_ENHE_AF_ADV (1U << 12) /* Extended nexthopi afi/safi advertised */ | |
1272 | #define PEER_CAP_ENHE_AF_RCV (1U << 13) /* Extended nexthop afi/safi received */ | |
1273 | #define PEER_CAP_ENHE_AF_NEGO (1U << 14) /* Extended nexthop afi/safi negotiated */ | |
8606be87 DA |
1274 | #define PEER_CAP_LLGR_AF_ADV (1U << 15) |
1275 | #define PEER_CAP_LLGR_AF_RCV (1U << 16) | |
718e3744 | 1276 | |
d62a17ae | 1277 | /* Global configuration flags. */ |
9fb964de PM |
1278 | /* |
1279 | * Parallel array to flags that indicates whether each flag originates | |
1280 | * from a peer-group or if it is config that is specific to this | |
1281 | * individual peer. If a flag is set independent of the peer-group, the | |
1282 | * same bit should be set here. If this peer is a peer-group, this | |
1283 | * memory region should be all zeros. | |
1284 | * | |
1285 | * The assumption is that the default state for all flags is unset, | |
1286 | * so if a flag is unset, the corresponding override flag is unset too. | |
1287 | * However if a flag is set, the corresponding override flag is set. | |
1288 | */ | |
5cb84977 | 1289 | uint64_t flags_override; |
9fb964de PM |
1290 | /* |
1291 | * Parallel array to flags that indicates whether the default behavior | |
1292 | * of *flags_override* should be inverted. If a flag is unset and the | |
1293 | * corresponding invert flag is set, the corresponding override flag | |
1294 | * would be set. However if a flag is set and the corresponding invert | |
1295 | * flag is unset, the corresponding override flag would be unset. | |
1296 | * | |
1297 | * This can be used for attributes like *send-community*, which are | |
1298 | * implicitely enabled and have to be disabled explicitely, compared to | |
1299 | * 'normal' attributes like *next-hop-self* which are implicitely set. | |
1300 | * | |
1301 | * All operations dealing with flags should apply the following boolean | |
1302 | * logic to keep the internal flag system in a sane state: | |
1303 | * | |
1304 | * value=0 invert=0 Inherit flag if member, otherwise unset flag | |
1305 | * value=0 invert=1 Unset flag unconditionally | |
1306 | * value=1 invert=0 Set flag unconditionally | |
1307 | * value=1 invert=1 Inherit flag if member, otherwise set flag | |
1308 | * | |
1309 | * Contrary to the implementation of *flags_override*, the flag | |
1310 | * inversion state can be set either on the peer OR the peer *and* the | |
1311 | * peer-group. This was done on purpose, as the inversion state of a | |
1312 | * flag can be determined on either the peer or the peer-group. | |
1313 | * | |
1314 | * Example: Enabling the cisco configuration mode inverts all flags | |
1315 | * related to *send-community* unconditionally for both peer-groups and | |
1316 | * peers. | |
1317 | * | |
1318 | * This behavior is different for interface peers though, which enable | |
1319 | * the *extended-nexthop* flag by default, which regular peers do not. | |
1320 | * As the peer-group can contain both regular and interface peers, the | |
1321 | * flag inversion state must be set on the peer only. | |
1322 | * | |
1323 | * When a peer inherits the configuration from a peer-group and the | |
1324 | * inversion state of the flag differs between peer and peer-group, the | |
1325 | * newly set value must equal to the inverted state of the peer-group. | |
1326 | */ | |
5cb84977 | 1327 | uint64_t flags_invert; |
9fb964de PM |
1328 | /* |
1329 | * Effective array for storing the peer/peer-group flags. In case of a | |
1330 | * peer-group, the peer-specific overrides (see flags_override and | |
1331 | * flags_invert) must be respected. | |
5cb84977 DA |
1332 | * When changing the structure of flags/af_flags, do not forget to |
1333 | * change flags_invert/flags_override too. | |
9fb964de | 1334 | */ |
0ebabd41 | 1335 | uint64_t flags; |
83194f39 DA |
1336 | #define PEER_FLAG_PASSIVE (1ULL << 0) /* passive mode */ |
1337 | #define PEER_FLAG_SHUTDOWN (1ULL << 1) /* shutdown */ | |
1338 | #define PEER_FLAG_DONT_CAPABILITY (1ULL << 2) /* dont-capability */ | |
1339 | #define PEER_FLAG_OVERRIDE_CAPABILITY (1ULL << 3) /* override-capability */ | |
1340 | #define PEER_FLAG_STRICT_CAP_MATCH (1ULL << 4) /* strict-match */ | |
1341 | #define PEER_FLAG_DYNAMIC_CAPABILITY (1ULL << 5) /* dynamic capability */ | |
1342 | #define PEER_FLAG_DISABLE_CONNECTED_CHECK (1ULL << 6) /* disable-connected-check */ | |
1343 | #define PEER_FLAG_LOCAL_AS_NO_PREPEND (1ULL << 7) /* local-as no-prepend */ | |
1344 | #define PEER_FLAG_LOCAL_AS_REPLACE_AS (1ULL << 8) /* local-as no-prepend replace-as */ | |
1345 | #define PEER_FLAG_DELETE (1ULL << 9) /* mark the peer for deleting */ | |
1346 | #define PEER_FLAG_CONFIG_NODE (1ULL << 10) /* the node to update configs on */ | |
1347 | #define PEER_FLAG_LONESOUL (1ULL << 11) | |
1348 | #define PEER_FLAG_DYNAMIC_NEIGHBOR (1ULL << 12) /* dynamic neighbor */ | |
1349 | #define PEER_FLAG_CAPABILITY_ENHE (1ULL << 13) /* Extended next-hop (rfc 5549)*/ | |
1350 | #define PEER_FLAG_IFPEER_V6ONLY (1ULL << 14) /* if-based peer is v6 only */ | |
1351 | #define PEER_FLAG_IS_RFAPI_HD (1ULL << 15) /* attached to rfapi HD */ | |
1352 | #define PEER_FLAG_ENFORCE_FIRST_AS (1ULL << 16) /* enforce-first-as */ | |
1353 | #define PEER_FLAG_ROUTEADV (1ULL << 17) /* route advertise */ | |
1354 | #define PEER_FLAG_TIMER (1ULL << 18) /* keepalive & holdtime */ | |
1355 | #define PEER_FLAG_TIMER_CONNECT (1ULL << 19) /* connect timer */ | |
1356 | #define PEER_FLAG_PASSWORD (1ULL << 20) /* password */ | |
1357 | #define PEER_FLAG_LOCAL_AS (1ULL << 21) /* local-as */ | |
1358 | #define PEER_FLAG_UPDATE_SOURCE (1ULL << 22) /* update-source */ | |
02a82b47 | 1359 | |
b0965c44 | 1360 | /* BGP-GR Peer related flags */ |
83194f39 DA |
1361 | #define PEER_FLAG_GRACEFUL_RESTART_HELPER (1ULL << 23) /* Helper */ |
1362 | #define PEER_FLAG_GRACEFUL_RESTART (1ULL << 24) /* Graceful Restart */ | |
1363 | #define PEER_FLAG_GRACEFUL_RESTART_GLOBAL_INHERIT (1ULL << 25) /* Global-Inherit */ | |
1364 | #define PEER_FLAG_RTT_SHUTDOWN (1ULL << 26) /* shutdown rtt */ | |
1365 | #define PEER_FLAG_TIMER_DELAYOPEN (1ULL << 27) /* delayopen timer */ | |
1366 | #define PEER_FLAG_TCP_MSS (1ULL << 28) /* tcp-mss */ | |
27aa23a4 DA |
1367 | /* Disable IEEE floating-point link bandwidth encoding in |
1368 | * extended communities. | |
1369 | */ | |
83194f39 | 1370 | #define PEER_FLAG_DISABLE_LINK_BW_ENCODING_IEEE (1ULL << 29) |
d08c0c80 | 1371 | /* force the extended format for Optional Parameters in OPEN message */ |
83194f39 | 1372 | #define PEER_FLAG_EXTENDED_OPT_PARAMS (1ULL << 30) |
b0965c44 | 1373 | |
d864dd9e | 1374 | /* BGP Open Policy flags. |
7dddd1f7 DA |
1375 | * Enforce using roles on both sides: |
1376 | * `local-role ROLE strict-mode` configured. | |
d864dd9e | 1377 | */ |
7dddd1f7 DA |
1378 | #define PEER_FLAG_ROLE_STRICT_MODE (1ULL << 31) |
1379 | /* `local-role` configured */ | |
1380 | #define PEER_FLAG_ROLE (1ULL << 32) | |
c41e9372 | 1381 | #define PEER_FLAG_PORT (1ULL << 33) |
97a52c82 | 1382 | #define PEER_FLAG_AIGP (1ULL << 34) |
4f770cf1 | 1383 | #define PEER_FLAG_GRACEFUL_SHUTDOWN (1ULL << 35) |
234f6fd4 | 1384 | #define PEER_FLAG_CAPABILITY_SOFT_VERSION (1ULL << 36) |
d864dd9e | 1385 | |
b0965c44 | 1386 | /* |
1387 | *GR-Disabled mode means unset PEER_FLAG_GRACEFUL_RESTART | |
1388 | *& PEER_FLAG_GRACEFUL_RESTART_HELPER | |
1389 | *and PEER_FLAG_GRACEFUL_RESTART_GLOBAL_INHERIT | |
1390 | */ | |
1391 | ||
2ba1fe69 | 1392 | struct bgp_peer_gr PEER_GR_FSM[BGP_PEER_GR_MODE][BGP_PEER_GR_EVENT_CMD]; |
b0965c44 | 1393 | enum peer_mode peer_gr_present_state; |
1394 | /* Non stop forwarding afi-safi count for BGP gr feature*/ | |
1395 | uint8_t nsf_af_count; | |
1396 | ||
1397 | uint8_t peer_gr_new_status_flag; | |
e9faf4be QY |
1398 | #define PEER_GRACEFUL_RESTART_NEW_STATE_HELPER (1U << 0) |
1399 | #define PEER_GRACEFUL_RESTART_NEW_STATE_RESTART (1U << 1) | |
1400 | #define PEER_GRACEFUL_RESTART_NEW_STATE_INHERIT (1U << 2) | |
b0965c44 | 1401 | |
d62a17ae | 1402 | /* outgoing message sent in CEASE_ADMIN_SHUTDOWN notify */ |
1403 | char *tx_shutdown_message; | |
718e3744 | 1404 | |
d62a17ae | 1405 | /* NSF mode (graceful restart) */ |
d7c0a89a | 1406 | uint8_t nsf[AFI_MAX][SAFI_MAX]; |
9e3b51a7 | 1407 | /* EOR Send time */ |
1408 | time_t eor_stime[AFI_MAX][SAFI_MAX]; | |
1409 | /* Last update packet sent time */ | |
1410 | time_t pkt_stime[AFI_MAX][SAFI_MAX]; | |
93406d87 | 1411 | |
04e1c5bb QY |
1412 | /* Peer Per AF flags */ |
1413 | /* | |
9fb964de PM |
1414 | * Please consult the comments for *flags_override*, *flags_invert* and |
1415 | * *flags* to understand what these three arrays do. The address-family | |
1416 | * specific attributes are being treated the exact same way as global | |
1417 | * peer attributes. | |
04e1c5bb | 1418 | */ |
da5e1a58 DA |
1419 | uint64_t af_flags_override[AFI_MAX][SAFI_MAX]; |
1420 | uint64_t af_flags_invert[AFI_MAX][SAFI_MAX]; | |
1421 | uint64_t af_flags[AFI_MAX][SAFI_MAX]; | |
b6a3df6b DA |
1422 | #define PEER_FLAG_SEND_COMMUNITY (1ULL << 0) |
1423 | #define PEER_FLAG_SEND_EXT_COMMUNITY (1ULL << 1) | |
1424 | #define PEER_FLAG_NEXTHOP_SELF (1ULL << 2) | |
1425 | #define PEER_FLAG_REFLECTOR_CLIENT (1ULL << 3) | |
1426 | #define PEER_FLAG_RSERVER_CLIENT (1ULL << 4) | |
1427 | #define PEER_FLAG_SOFT_RECONFIG (1ULL << 5) | |
1428 | #define PEER_FLAG_AS_PATH_UNCHANGED (1ULL << 6) | |
1429 | #define PEER_FLAG_NEXTHOP_UNCHANGED (1ULL << 7) | |
1430 | #define PEER_FLAG_MED_UNCHANGED (1ULL << 8) | |
1431 | #define PEER_FLAG_DEFAULT_ORIGINATE (1ULL << 9) | |
1432 | #define PEER_FLAG_REMOVE_PRIVATE_AS (1ULL << 10) | |
1433 | #define PEER_FLAG_ALLOWAS_IN (1ULL << 11) | |
1434 | #define PEER_FLAG_ORF_PREFIX_SM (1ULL << 12) | |
1435 | #define PEER_FLAG_ORF_PREFIX_RM (1ULL << 13) | |
1436 | #define PEER_FLAG_MAX_PREFIX (1ULL << 14) | |
1437 | #define PEER_FLAG_MAX_PREFIX_WARNING (1ULL << 15) | |
1438 | #define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1ULL << 16) | |
1439 | #define PEER_FLAG_FORCE_NEXTHOP_SELF (1ULL << 17) | |
1440 | #define PEER_FLAG_REMOVE_PRIVATE_AS_ALL (1ULL << 18) | |
1441 | #define PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE (1ULL << 19) | |
1442 | #define PEER_FLAG_AS_OVERRIDE (1ULL << 20) | |
1443 | #define PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE (1ULL << 21) | |
1444 | #define PEER_FLAG_WEIGHT (1ULL << 24) | |
1445 | #define PEER_FLAG_ALLOWAS_IN_ORIGIN (1ULL << 25) | |
1446 | #define PEER_FLAG_SEND_LARGE_COMMUNITY (1ULL << 26) | |
1447 | #define PEER_FLAG_MAX_PREFIX_OUT (1ULL << 27) | |
1448 | #define PEER_FLAG_MAX_PREFIX_FORCE (1ULL << 28) | |
1449 | #define PEER_FLAG_DISABLE_ADDPATH_RX (1ULL << 29) | |
1450 | #define PEER_FLAG_SOO (1ULL << 30) | |
cfd01fc0 | 1451 | #define PEER_FLAG_ACCEPT_OWN (1ULL << 31) |
0df7c91f | 1452 | |
dcc68b5e MS |
1453 | enum bgp_addpath_strat addpath_type[AFI_MAX][SAFI_MAX]; |
1454 | ||
d62a17ae | 1455 | /* MD5 password */ |
1456 | char *password; | |
718e3744 | 1457 | |
d62a17ae | 1458 | /* default-originate route-map. */ |
1459 | struct { | |
1460 | char *name; | |
1461 | struct route_map *map; | |
1462 | } default_rmap[AFI_MAX][SAFI_MAX]; | |
718e3744 | 1463 | |
d62a17ae | 1464 | /* Peer status flags. */ |
d7c0a89a | 1465 | uint16_t sflags; |
e9faf4be QY |
1466 | #define PEER_STATUS_ACCEPT_PEER (1U << 0) /* accept peer */ |
1467 | #define PEER_STATUS_PREFIX_OVERFLOW (1U << 1) /* prefix-overflow */ | |
1468 | #define PEER_STATUS_CAPABILITY_OPEN (1U << 2) /* capability open send */ | |
1469 | #define PEER_STATUS_HAVE_ACCEPT (1U << 3) /* accept peer's parent */ | |
1470 | #define PEER_STATUS_GROUP (1U << 4) /* peer-group conf */ | |
1471 | #define PEER_STATUS_NSF_MODE (1U << 5) /* NSF aware peer */ | |
1472 | #define PEER_STATUS_NSF_WAIT (1U << 6) /* wait comeback peer */ | |
d08c0c80 DA |
1473 | /* received extended format encoding for OPEN message */ |
1474 | #define PEER_STATUS_EXT_OPT_PARAMS_LENGTH (1U << 7) | |
718e3744 | 1475 | |
d62a17ae | 1476 | /* Peer status af flags (reset in bgp_stop) */ |
d7c0a89a | 1477 | uint16_t af_sflags[AFI_MAX][SAFI_MAX]; |
e9faf4be QY |
1478 | #define PEER_STATUS_ORF_PREFIX_SEND (1U << 0) /* prefix-list send peer */ |
1479 | #define PEER_STATUS_ORF_WAIT_REFRESH (1U << 1) /* wait refresh received peer */ | |
1480 | #define PEER_STATUS_PREFIX_THRESHOLD (1U << 2) /* exceed prefix-threshold */ | |
1481 | #define PEER_STATUS_PREFIX_LIMIT (1U << 3) /* exceed prefix-limit */ | |
1482 | #define PEER_STATUS_EOR_SEND (1U << 4) /* end-of-rib send to peer */ | |
1483 | #define PEER_STATUS_EOR_RECEIVED (1U << 5) /* end-of-rib received from peer */ | |
9af52ccf DA |
1484 | #define PEER_STATUS_ENHANCED_REFRESH (1U << 6) /* Enhanced Route Refresh */ |
1485 | #define PEER_STATUS_BORR_SEND (1U << 7) /* BoRR send to peer */ | |
1486 | #define PEER_STATUS_BORR_RECEIVED (1U << 8) /* BoRR received from peer */ | |
1487 | #define PEER_STATUS_EORR_SEND (1U << 9) /* EoRR send to peer */ | |
1488 | #define PEER_STATUS_EORR_RECEIVED (1U << 10) /* EoRR received from peer */ | |
1479ed2f DA |
1489 | /* LLGR aware peer */ |
1490 | #define PEER_STATUS_LLGR_WAIT (1U << 11) | |
a783cc05 | 1491 | #define PEER_STATUS_REFRESH_PENDING (1U << 12) /* refresh request from peer */ |
5597214c | 1492 | #define PEER_STATUS_RTT_SHUTDOWN (1U << 13) /* In shutdown state due to RTT */ |
e0701b79 | 1493 | |
b90a8e13 | 1494 | /* Configured timer values. */ |
1588f6f4 QY |
1495 | _Atomic uint32_t holdtime; |
1496 | _Atomic uint32_t keepalive; | |
1497 | _Atomic uint32_t connect; | |
1498 | _Atomic uint32_t routeadv; | |
6c537a18 | 1499 | _Atomic uint32_t delayopen; |
d62a17ae | 1500 | |
1501 | /* Timer values. */ | |
1588f6f4 QY |
1502 | _Atomic uint32_t v_start; |
1503 | _Atomic uint32_t v_connect; | |
1504 | _Atomic uint32_t v_holdtime; | |
1505 | _Atomic uint32_t v_keepalive; | |
1506 | _Atomic uint32_t v_routeadv; | |
6c537a18 | 1507 | _Atomic uint32_t v_delayopen; |
1588f6f4 QY |
1508 | _Atomic uint32_t v_pmax_restart; |
1509 | _Atomic uint32_t v_gr_restart; | |
d62a17ae | 1510 | |
1511 | /* Threads. */ | |
1512 | struct thread *t_read; | |
424ab01d | 1513 | struct thread *t_write; |
d62a17ae | 1514 | struct thread *t_start; |
387f984e QY |
1515 | struct thread *t_connect_check_r; |
1516 | struct thread *t_connect_check_w; | |
d62a17ae | 1517 | struct thread *t_connect; |
1518 | struct thread *t_holdtime; | |
d62a17ae | 1519 | struct thread *t_routeadv; |
6c537a18 | 1520 | struct thread *t_delayopen; |
d62a17ae | 1521 | struct thread *t_pmax_restart; |
1522 | struct thread *t_gr_restart; | |
1523 | struct thread *t_gr_stale; | |
1479ed2f | 1524 | struct thread *t_llgr_stale[AFI_MAX][SAFI_MAX]; |
7651f277 | 1525 | struct thread *t_revalidate_all[AFI_MAX][SAFI_MAX]; |
56257a44 | 1526 | struct thread *t_generate_updgrp_packets; |
424ab01d | 1527 | struct thread *t_process_packet; |
1fae5c8e | 1528 | struct thread *t_process_packet_error; |
9af52ccf | 1529 | struct thread *t_refresh_stalepath; |
d62a17ae | 1530 | |
49507a6f | 1531 | /* Thread flags. */ |
0545c373 | 1532 | _Atomic uint32_t thread_flags; |
e9faf4be QY |
1533 | #define PEER_THREAD_WRITES_ON (1U << 0) |
1534 | #define PEER_THREAD_READS_ON (1U << 1) | |
1535 | #define PEER_THREAD_KEEPALIVES_ON (1U << 2) | |
a77e2f4b S |
1536 | #define PEER_THREAD_SUBGRP_ADV_DELAY (1U << 3) |
1537 | ||
d62a17ae | 1538 | /* workqueues */ |
1539 | struct work_queue *clear_node_queue; | |
1540 | ||
a4d82a8a PZ |
1541 | #define PEER_TOTAL_RX(peer) \ |
1542 | atomic_load_explicit(&peer->open_in, memory_order_relaxed) \ | |
1543 | + atomic_load_explicit(&peer->update_in, memory_order_relaxed) \ | |
1544 | + atomic_load_explicit(&peer->notify_in, memory_order_relaxed) \ | |
1545 | + atomic_load_explicit(&peer->refresh_in, \ | |
1546 | memory_order_relaxed) \ | |
1547 | + atomic_load_explicit(&peer->keepalive_in, \ | |
1548 | memory_order_relaxed) \ | |
1549 | + atomic_load_explicit(&peer->dynamic_cap_in, \ | |
1550 | memory_order_relaxed) | |
1551 | ||
1552 | #define PEER_TOTAL_TX(peer) \ | |
1553 | atomic_load_explicit(&peer->open_out, memory_order_relaxed) \ | |
1554 | + atomic_load_explicit(&peer->update_out, \ | |
1555 | memory_order_relaxed) \ | |
1556 | + atomic_load_explicit(&peer->notify_out, \ | |
1557 | memory_order_relaxed) \ | |
1558 | + atomic_load_explicit(&peer->refresh_out, \ | |
1559 | memory_order_relaxed) \ | |
1560 | + atomic_load_explicit(&peer->keepalive_out, \ | |
1561 | memory_order_relaxed) \ | |
1562 | + atomic_load_explicit(&peer->dynamic_cap_out, \ | |
1563 | memory_order_relaxed) | |
0112e9e0 | 1564 | |
d62a17ae | 1565 | /* Statistics field */ |
996c9314 LB |
1566 | _Atomic uint32_t open_in; /* Open message input count */ |
1567 | _Atomic uint32_t open_out; /* Open message output count */ | |
1588f6f4 QY |
1568 | _Atomic uint32_t update_in; /* Update message input count */ |
1569 | _Atomic uint32_t update_out; /* Update message ouput count */ | |
1570 | _Atomic time_t update_time; /* Update message received time. */ | |
1571 | _Atomic uint32_t keepalive_in; /* Keepalive input count */ | |
1572 | _Atomic uint32_t keepalive_out; /* Keepalive output count */ | |
1573 | _Atomic uint32_t notify_in; /* Notify input count */ | |
1574 | _Atomic uint32_t notify_out; /* Notify output count */ | |
1575 | _Atomic uint32_t refresh_in; /* Route Refresh input count */ | |
1576 | _Atomic uint32_t refresh_out; /* Route Refresh output count */ | |
1577 | _Atomic uint32_t dynamic_cap_in; /* Dynamic Capability input count. */ | |
a4d82a8a | 1578 | _Atomic uint32_t dynamic_cap_out; /* Dynamic Capability output count. */ |
d62a17ae | 1579 | |
b4d46cc9 DL |
1580 | uint32_t stat_pfx_filter; |
1581 | uint32_t stat_pfx_aspath_loop; | |
1582 | uint32_t stat_pfx_originator_loop; | |
1583 | uint32_t stat_pfx_cluster_loop; | |
1584 | uint32_t stat_pfx_nh_invalid; | |
1585 | uint32_t stat_pfx_dup_withdraw; | |
1586 | uint32_t stat_upd_7606; /* RFC7606: treat-as-withdraw */ | |
1587 | ||
d62a17ae | 1588 | /* BGP state count */ |
d7c0a89a QY |
1589 | uint32_t established; /* Established */ |
1590 | uint32_t dropped; /* Dropped */ | |
d62a17ae | 1591 | |
1592 | /* Update delay related fields */ | |
d7c0a89a | 1593 | uint8_t update_delay_over; /* When this is set, BGP is no more waiting |
d62a17ae | 1594 | for EOR */ |
1595 | ||
1596 | /* Syncronization list and time. */ | |
1597 | struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX]; | |
1598 | time_t synctime; | |
1588f6f4 QY |
1599 | /* timestamp when the last UPDATE msg was written */ |
1600 | _Atomic time_t last_write; | |
1601 | /* timestamp when the last msg was written */ | |
1602 | _Atomic time_t last_update; | |
d62a17ae | 1603 | |
bd9fb6f3 DL |
1604 | /* only updated under io_mtx. |
1605 | * last_sendq_warn is only for ratelimiting log warning messages. | |
1606 | */ | |
1607 | time_t last_sendq_ok, last_sendq_warn; | |
1608 | ||
d62a17ae | 1609 | /* Notify data. */ |
1610 | struct bgp_notify notify; | |
1611 | ||
d62a17ae | 1612 | /* Filter structure. */ |
1613 | struct bgp_filter filter[AFI_MAX][SAFI_MAX]; | |
1614 | ||
70ee29b4 PM |
1615 | /* |
1616 | * Parallel array to filter that indicates whether each filter | |
1617 | * originates from a peer-group or if it is config that is specific to | |
1618 | * this individual peer. If a filter is set independent of the | |
1619 | * peer-group the appropriate bit should be set here. If this peer is a | |
1620 | * peer-group, this memory region should be all zeros. The assumption | |
1621 | * is that the default state for all flags is unset. Due to filters | |
1622 | * having a direction (e.g. in/out/...), this array has a third | |
1623 | * dimension for storing the overrides independently per direction. | |
1624 | * | |
1625 | * Notes: | |
1626 | * - if a filter for an individual peer is unset, the corresponding | |
1627 | * override flag is unset and the peer is considered to be back in | |
1628 | * sync with the peer-group. | |
1629 | * - This does *not* contain the filter values, rather it contains | |
1630 | * whether the filter in filter (struct bgp_filter) is peer-specific. | |
1631 | */ | |
73b1082e | 1632 | uint8_t filter_override[AFI_MAX][SAFI_MAX][FILTER_MAX]; |
e9faf4be QY |
1633 | #define PEER_FT_DISTRIBUTE_LIST (1U << 0) /* distribute-list */ |
1634 | #define PEER_FT_FILTER_LIST (1U << 1) /* filter-list */ | |
1635 | #define PEER_FT_PREFIX_LIST (1U << 2) /* prefix-list */ | |
1636 | #define PEER_FT_ROUTE_MAP (1U << 3) /* route-map */ | |
1637 | #define PEER_FT_UNSUPPRESS_MAP (1U << 4) /* unsuppress-map */ | |
7f7940e6 | 1638 | #define PEER_FT_ADVERTISE_MAP (1U << 5) /* advertise-map */ |
70ee29b4 | 1639 | |
d62a17ae | 1640 | /* ORF Prefix-list */ |
1641 | struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX]; | |
1642 | ||
1643 | /* Text description of last attribute rcvd */ | |
1644 | char rcvd_attr_str[BUFSIZ]; | |
1645 | ||
1646 | /* Track if we printed the attribute in debugs */ | |
1647 | int rcvd_attr_printed; | |
1648 | ||
9cbd06e0 | 1649 | /* Accepted prefix count */ |
a0a87037 | 1650 | uint32_t pcount[AFI_MAX][SAFI_MAX]; |
d62a17ae | 1651 | |
1652 | /* Max prefix count. */ | |
a0a87037 | 1653 | uint32_t pmax[AFI_MAX][SAFI_MAX]; |
d7c0a89a QY |
1654 | uint8_t pmax_threshold[AFI_MAX][SAFI_MAX]; |
1655 | uint16_t pmax_restart[AFI_MAX][SAFI_MAX]; | |
e0701b79 | 1656 | #define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75 |
718e3744 | 1657 | |
fde246e8 DA |
1658 | /* Send prefix count. */ |
1659 | uint32_t pmax_out[AFI_MAX][SAFI_MAX]; | |
1660 | ||
d62a17ae | 1661 | /* allowas-in. */ |
1662 | char allowas_in[AFI_MAX][SAFI_MAX]; | |
ac41b2a2 | 1663 | |
01da2d26 DA |
1664 | /* soo */ |
1665 | struct ecommunity *soo[AFI_MAX][SAFI_MAX]; | |
1666 | ||
d62a17ae | 1667 | /* weight */ |
1668 | unsigned long weight[AFI_MAX][SAFI_MAX]; | |
d93f7ffc | 1669 | |
d62a17ae | 1670 | /* peer reset cause */ |
1a1f4534 | 1671 | uint8_t last_reset; |
e9faf4be QY |
1672 | #define PEER_DOWN_RID_CHANGE 1U /* bgp router-id command */ |
1673 | #define PEER_DOWN_REMOTE_AS_CHANGE 2U /* neighbor remote-as command */ | |
1674 | #define PEER_DOWN_LOCAL_AS_CHANGE 3U /* neighbor local-as command */ | |
1675 | #define PEER_DOWN_CLID_CHANGE 4U /* bgp cluster-id command */ | |
1676 | #define PEER_DOWN_CONFED_ID_CHANGE 5U /* bgp confederation id command */ | |
1677 | #define PEER_DOWN_CONFED_PEER_CHANGE 6U /* bgp confederation peer command */ | |
1678 | #define PEER_DOWN_RR_CLIENT_CHANGE 7U /* neighbor rr-client command */ | |
1679 | #define PEER_DOWN_RS_CLIENT_CHANGE 8U /* neighbor rs-client command */ | |
1680 | #define PEER_DOWN_UPDATE_SOURCE_CHANGE 9U /* neighbor update-source command */ | |
1681 | #define PEER_DOWN_AF_ACTIVATE 10U /* neighbor activate command */ | |
1682 | #define PEER_DOWN_USER_SHUTDOWN 11U /* neighbor shutdown command */ | |
1683 | #define PEER_DOWN_USER_RESET 12U /* clear ip bgp command */ | |
1684 | #define PEER_DOWN_NOTIFY_RECEIVED 13U /* notification received */ | |
1685 | #define PEER_DOWN_NOTIFY_SEND 14U /* notification send */ | |
1686 | #define PEER_DOWN_CLOSE_SESSION 15U /* tcp session close */ | |
1687 | #define PEER_DOWN_NEIGHBOR_DELETE 16U /* neghbor delete */ | |
1688 | #define PEER_DOWN_RMAP_BIND 17U /* neghbor peer-group command */ | |
1689 | #define PEER_DOWN_RMAP_UNBIND 18U /* no neighbor peer-group command */ | |
1690 | #define PEER_DOWN_CAPABILITY_CHANGE 19U /* neighbor capability command */ | |
1691 | #define PEER_DOWN_PASSIVE_CHANGE 20U /* neighbor passive command */ | |
1692 | #define PEER_DOWN_MULTIHOP_CHANGE 21U /* neighbor multihop command */ | |
1693 | #define PEER_DOWN_NSF_CLOSE_SESSION 22U /* NSF tcp session close */ | |
1694 | #define PEER_DOWN_V6ONLY_CHANGE 23U /* if-based peering v6only toggled */ | |
1695 | #define PEER_DOWN_BFD_DOWN 24U /* BFD down */ | |
1696 | #define PEER_DOWN_IF_DOWN 25U /* Interface down */ | |
1697 | #define PEER_DOWN_NBR_ADDR_DEL 26U /* Peer address lost */ | |
1698 | #define PEER_DOWN_WAITING_NHT 27U /* Waiting for NHT to resolve */ | |
1699 | #define PEER_DOWN_NBR_ADDR 28U /* Waiting for peer IPv6 IP Addr */ | |
1700 | #define PEER_DOWN_VRF_UNINIT 29U /* Associated VRF is not init yet */ | |
1701 | #define PEER_DOWN_NOAFI_ACTIVATED 30U /* No AFI/SAFI activated for peer */ | |
1702 | #define PEER_DOWN_AS_SETS_REJECT 31U /* Reject routes with AS_SET */ | |
1703 | #define PEER_DOWN_WAITING_OPEN 32U /* Waiting for open to succeed */ | |
1704 | #define PEER_DOWN_PFX_COUNT 33U /* Reached received prefix count */ | |
c5fe9095 | 1705 | #define PEER_DOWN_SOCKET_ERROR 34U /* Some socket error happened */ |
5597214c | 1706 | #define PEER_DOWN_RTT_SHUTDOWN 35U /* Automatically shutdown due to RTT */ |
1e91f1d1 DS |
1707 | /* |
1708 | * Remember to update peer_down_str in bgp_fsm.c when you add | |
1709 | * a new value to the last_reset reason | |
1710 | */ | |
1711 | ||
8dcad8e9 | 1712 | uint16_t last_reset_cause_size; |
d7c0a89a | 1713 | uint8_t last_reset_cause[BGP_MAX_PACKET_SIZE]; |
e0701b79 | 1714 | |
d62a17ae | 1715 | /* The kind of route-map Flags.*/ |
a3116965 | 1716 | uint16_t rmap_type; |
e9faf4be QY |
1717 | #define PEER_RMAP_TYPE_IN (1U << 0) /* neighbor route-map in */ |
1718 | #define PEER_RMAP_TYPE_OUT (1U << 1) /* neighbor route-map out */ | |
1719 | #define PEER_RMAP_TYPE_NETWORK (1U << 2) /* network route-map */ | |
1720 | #define PEER_RMAP_TYPE_REDISTRIBUTE (1U << 3) /* redistribute route-map */ | |
1721 | #define PEER_RMAP_TYPE_DEFAULT (1U << 4) /* default-originate route-map */ | |
1722 | #define PEER_RMAP_TYPE_NOSET (1U << 5) /* not allow to set commands */ | |
1723 | #define PEER_RMAP_TYPE_IMPORT (1U << 6) /* neighbor route-map import */ | |
1724 | #define PEER_RMAP_TYPE_EXPORT (1U << 7) /* neighbor route-map export */ | |
1725 | #define PEER_RMAP_TYPE_AGGREGATE (1U << 8) /* aggregate-address route-map */ | |
6410e93a | 1726 | |
21bfce98 RZ |
1727 | /** Peer overwrite configuration. */ |
1728 | struct bfd_session_config { | |
1729 | /** | |
1730 | * Manual configuration bit. | |
1731 | * | |
1732 | * This flag only makes sense for real peers (and not groups), | |
1733 | * it keeps track if the user explicitly configured BFD for a | |
1734 | * peer. | |
1735 | */ | |
1736 | bool manual; | |
1737 | /** Control Plane Independent. */ | |
1738 | bool cbit; | |
1739 | /** Detection multiplier. */ | |
1740 | uint8_t detection_multiplier; | |
1741 | /** Minimum required RX interval. */ | |
1742 | uint32_t min_rx; | |
1743 | /** Minimum required TX interval. */ | |
1744 | uint32_t min_tx; | |
1745 | /** Profile name. */ | |
1746 | char profile[BFD_PROFILE_NAME_LEN]; | |
1747 | /** Peer BFD session */ | |
1748 | struct bfd_session_params *session; | |
1749 | } * bfd_config; | |
04b6bdc0 | 1750 | |
d62a17ae | 1751 | /* hostname and domainname advertised by host */ |
1752 | char *hostname; | |
1753 | char *domainname; | |
19df7279 | 1754 | |
2b31007c RZ |
1755 | /* Sender side AS path loop detection. */ |
1756 | bool as_path_loop_detection; | |
1757 | ||
ef56aee4 DA |
1758 | /* Extended Message Support */ |
1759 | uint16_t max_packet_size; | |
1760 | ||
7f7940e6 | 1761 | /* Conditional advertisement */ |
c385f82a MK |
1762 | bool advmap_config_change[AFI_MAX][SAFI_MAX]; |
1763 | bool advmap_table_change; | |
7f7940e6 | 1764 | |
4ab46701 AR |
1765 | /* set TCP max segment size */ |
1766 | uint32_t tcp_mss; | |
1767 | ||
8606be87 DA |
1768 | /* Long-lived Graceful Restart */ |
1769 | struct llgr_info llgr[AFI_MAX][SAFI_MAX]; | |
1770 | ||
aa24a36a DA |
1771 | bool shut_during_cfg; |
1772 | ||
a5c6a9b1 DA |
1773 | #define BGP_ATTR_MAX 255 |
1774 | /* Path attributes discard */ | |
1775 | bool discard_attrs[BGP_ATTR_MAX]; | |
1776 | ||
e2863b4f DA |
1777 | /* Path attributes treat-as-withdraw */ |
1778 | bool withdraw_attrs[BGP_ATTR_MAX]; | |
1779 | ||
234f6fd4 DA |
1780 | /* BGP Software Version Capability */ |
1781 | #define BGP_MAX_SOFT_VERSION 64 | |
1782 | char *soft_version; | |
1783 | ||
96244aca | 1784 | QOBJ_FIELDS; |
718e3744 | 1785 | }; |
96244aca | 1786 | DECLARE_QOBJ_TYPE(peer); |
718e3744 | 1787 | |
598ce6bd | 1788 | /* Inherit peer attribute from peer-group. */ |
e7103a96 PM |
1789 | #define PEER_ATTR_INHERIT(peer, group, attr) \ |
1790 | ((peer)->attr = (group)->conf->attr) | |
1791 | #define PEER_STR_ATTR_INHERIT(peer, group, attr, mt) \ | |
598ce6bd | 1792 | do { \ |
e1b36e13 | 1793 | XFREE(mt, (peer)->attr); \ |
e7103a96 PM |
1794 | if ((group)->conf->attr) \ |
1795 | (peer)->attr = XSTRDUP(mt, (group)->conf->attr); \ | |
598ce6bd PM |
1796 | else \ |
1797 | (peer)->attr = NULL; \ | |
1798 | } while (0) | |
a14810f4 PM |
1799 | #define PEER_SU_ATTR_INHERIT(peer, group, attr) \ |
1800 | do { \ | |
1801 | if ((peer)->attr) \ | |
1802 | sockunion_free((peer)->attr); \ | |
1803 | if ((group)->conf->attr) \ | |
1804 | (peer)->attr = sockunion_dup((group)->conf->attr); \ | |
1805 | else \ | |
1806 | (peer)->attr = NULL; \ | |
1807 | } while (0) | |
598ce6bd | 1808 | |
ad4cbda1 | 1809 | /* Check if suppress start/restart of sessions to peer. */ |
d62a17ae | 1810 | #define BGP_PEER_START_SUPPRESSED(P) \ |
aa24a36a DA |
1811 | (CHECK_FLAG((P)->flags, PEER_FLAG_SHUTDOWN) || \ |
1812 | CHECK_FLAG((P)->sflags, PEER_STATUS_PREFIX_OVERFLOW) || \ | |
1813 | CHECK_FLAG((P)->bgp->flags, BGP_FLAG_SHUTDOWN) || \ | |
1814 | (P)->shut_during_cfg) | |
ad4cbda1 | 1815 | |
a77e2f4b S |
1816 | #define PEER_ROUTE_ADV_DELAY(peer) \ |
1817 | (CHECK_FLAG(peer->thread_flags, PEER_THREAD_SUBGRP_ADV_DELAY)) | |
c208c586 | 1818 | |
0df7c91f PJ |
1819 | #define PEER_PASSWORD_MINLEN (1) |
1820 | #define PEER_PASSWORD_MAXLEN (80) | |
1821 | ||
718e3744 | 1822 | /* This structure's member directly points incoming packet data |
1823 | stream. */ | |
d62a17ae | 1824 | struct bgp_nlri { |
1825 | /* AFI. */ | |
a46a2e9b | 1826 | uint16_t afi; /* iana_afi_t */ |
718e3744 | 1827 | |
d62a17ae | 1828 | /* SAFI. */ |
a46a2e9b | 1829 | uint8_t safi; /* iana_safi_t */ |
718e3744 | 1830 | |
d62a17ae | 1831 | /* Pointer to NLRI byte stream. */ |
d7c0a89a | 1832 | uint8_t *nlri; |
718e3744 | 1833 | |
d62a17ae | 1834 | /* Length of whole NLRI. */ |
1835 | bgp_size_t length; | |
718e3744 | 1836 | }; |
1837 | ||
1838 | /* BGP versions. */ | |
1839 | #define BGP_VERSION_4 4 | |
718e3744 | 1840 | |
1841 | /* Default BGP port number. */ | |
1842 | #define BGP_PORT_DEFAULT 179 | |
1843 | ||
9f33eea3 DA |
1844 | /* Extended BGP Administrative Shutdown Communication */ |
1845 | #define BGP_ADMIN_SHUTDOWN_MSG_LEN 255 | |
1846 | ||
718e3744 | 1847 | /* BGP minimum message size. */ |
1848 | #define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10) | |
1849 | #define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4) | |
1850 | #define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2) | |
1851 | #define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0) | |
1852 | #define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4) | |
1853 | #define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3) | |
1854 | ||
1855 | /* BGP message types. */ | |
1856 | #define BGP_MSG_OPEN 1 | |
1857 | #define BGP_MSG_UPDATE 2 | |
1858 | #define BGP_MSG_NOTIFY 3 | |
1859 | #define BGP_MSG_KEEPALIVE 4 | |
1860 | #define BGP_MSG_ROUTE_REFRESH_NEW 5 | |
1861 | #define BGP_MSG_CAPABILITY 6 | |
1862 | #define BGP_MSG_ROUTE_REFRESH_OLD 128 | |
1863 | ||
1864 | /* BGP open optional parameter. */ | |
718e3744 | 1865 | #define BGP_OPEN_OPT_CAP 2 |
1866 | ||
1867 | /* BGP4 attribute type codes. */ | |
1868 | #define BGP_ATTR_ORIGIN 1 | |
1869 | #define BGP_ATTR_AS_PATH 2 | |
1870 | #define BGP_ATTR_NEXT_HOP 3 | |
1871 | #define BGP_ATTR_MULTI_EXIT_DISC 4 | |
1872 | #define BGP_ATTR_LOCAL_PREF 5 | |
1873 | #define BGP_ATTR_ATOMIC_AGGREGATE 6 | |
1874 | #define BGP_ATTR_AGGREGATOR 7 | |
1875 | #define BGP_ATTR_COMMUNITIES 8 | |
1876 | #define BGP_ATTR_ORIGINATOR_ID 9 | |
1877 | #define BGP_ATTR_CLUSTER_LIST 10 | |
718e3744 | 1878 | #define BGP_ATTR_MP_REACH_NLRI 14 |
1879 | #define BGP_ATTR_MP_UNREACH_NLRI 15 | |
1880 | #define BGP_ATTR_EXT_COMMUNITIES 16 | |
0b2aa3a0 PJ |
1881 | #define BGP_ATTR_AS4_PATH 17 |
1882 | #define BGP_ATTR_AS4_AGGREGATOR 18 | |
a21bd7a3 | 1883 | #define BGP_ATTR_PMSI_TUNNEL 22 |
f4c89855 | 1884 | #define BGP_ATTR_ENCAP 23 |
9a659715 | 1885 | #define BGP_ATTR_IPV6_EXT_COMMUNITIES 25 |
97a52c82 | 1886 | #define BGP_ATTR_AIGP 26 |
57d187bc | 1887 | #define BGP_ATTR_LARGE_COMMUNITIES 32 |
d864dd9e | 1888 | #define BGP_ATTR_OTC 35 |
c5a543b4 | 1889 | #define BGP_ATTR_PREFIX_SID 40 |
ef3e0d04 | 1890 | #define BGP_ATTR_SRTE_COLOR 51 |
1e20238a | 1891 | #ifdef ENABLE_BGP_VNC_ATTR |
65efcfce LB |
1892 | #define BGP_ATTR_VNC 255 |
1893 | #endif | |
718e3744 | 1894 | |
1895 | /* BGP update origin. */ | |
1896 | #define BGP_ORIGIN_IGP 0 | |
1897 | #define BGP_ORIGIN_EGP 1 | |
1898 | #define BGP_ORIGIN_INCOMPLETE 2 | |
229757f1 | 1899 | #define BGP_ORIGIN_UNSPECIFIED 255 |
718e3744 | 1900 | |
1901 | /* BGP notify message codes. */ | |
1902 | #define BGP_NOTIFY_HEADER_ERR 1 | |
1903 | #define BGP_NOTIFY_OPEN_ERR 2 | |
1904 | #define BGP_NOTIFY_UPDATE_ERR 3 | |
1905 | #define BGP_NOTIFY_HOLD_ERR 4 | |
1906 | #define BGP_NOTIFY_FSM_ERR 5 | |
1907 | #define BGP_NOTIFY_CEASE 6 | |
9af52ccf | 1908 | #define BGP_NOTIFY_ROUTE_REFRESH_ERR 7 |
718e3744 | 1909 | |
3893aeee DA |
1910 | /* Subcodes for BGP Finite State Machine Error */ |
1911 | #define BGP_NOTIFY_FSM_ERR_SUBCODE_UNSPECIFIC 0 | |
1912 | #define BGP_NOTIFY_FSM_ERR_SUBCODE_OPENSENT 1 | |
1913 | #define BGP_NOTIFY_FSM_ERR_SUBCODE_OPENCONFIRM 2 | |
1914 | #define BGP_NOTIFY_FSM_ERR_SUBCODE_ESTABLISHED 3 | |
1915 | ||
4b4e07d2 DT |
1916 | #define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0 |
1917 | ||
718e3744 | 1918 | /* BGP_NOTIFY_HEADER_ERR sub codes. */ |
1919 | #define BGP_NOTIFY_HEADER_NOT_SYNC 1 | |
1920 | #define BGP_NOTIFY_HEADER_BAD_MESLEN 2 | |
1921 | #define BGP_NOTIFY_HEADER_BAD_MESTYPE 3 | |
718e3744 | 1922 | |
1923 | /* BGP_NOTIFY_OPEN_ERR sub codes. */ | |
14051b36 | 1924 | #define BGP_NOTIFY_OPEN_MALFORMED_ATTR 0 |
718e3744 | 1925 | #define BGP_NOTIFY_OPEN_UNSUP_VERSION 1 |
1926 | #define BGP_NOTIFY_OPEN_BAD_PEER_AS 2 | |
1927 | #define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3 | |
1928 | #define BGP_NOTIFY_OPEN_UNSUP_PARAM 4 | |
718e3744 | 1929 | #define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6 |
1930 | #define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7 | |
d864dd9e | 1931 | #define BGP_NOTIFY_OPEN_ROLE_MISMATCH 11 |
718e3744 | 1932 | |
1933 | /* BGP_NOTIFY_UPDATE_ERR sub codes. */ | |
1934 | #define BGP_NOTIFY_UPDATE_MAL_ATTR 1 | |
1935 | #define BGP_NOTIFY_UPDATE_UNREC_ATTR 2 | |
1936 | #define BGP_NOTIFY_UPDATE_MISS_ATTR 3 | |
1937 | #define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4 | |
1938 | #define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5 | |
1939 | #define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6 | |
718e3744 | 1940 | #define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8 |
1941 | #define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9 | |
1942 | #define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10 | |
1943 | #define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11 | |
718e3744 | 1944 | |
4b4e07d2 | 1945 | /* BGP_NOTIFY_CEASE sub codes (RFC 4486). */ |
718e3744 | 1946 | #define BGP_NOTIFY_CEASE_MAX_PREFIX 1 |
1947 | #define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2 | |
1948 | #define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3 | |
1949 | #define BGP_NOTIFY_CEASE_ADMIN_RESET 4 | |
1950 | #define BGP_NOTIFY_CEASE_CONNECT_REJECT 5 | |
1951 | #define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6 | |
545acafb | 1952 | #define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7 |
1953 | #define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8 | |
eea685b6 | 1954 | #define BGP_NOTIFY_CEASE_HARD_RESET 9 |
aebe2e37 | 1955 | #define BGP_NOTIFY_CEASE_BFD_DOWN 10 |
718e3744 | 1956 | |
9af52ccf DA |
1957 | /* BGP_NOTIFY_ROUTE_REFRESH_ERR sub codes (RFC 7313). */ |
1958 | #define BGP_NOTIFY_ROUTE_REFRESH_INVALID_MSG_LEN 1 | |
1959 | ||
1960 | /* BGP route refresh optional subtypes. */ | |
1961 | #define BGP_ROUTE_REFRESH_NORMAL 0 | |
1962 | #define BGP_ROUTE_REFRESH_BORR 1 | |
1963 | #define BGP_ROUTE_REFRESH_EORR 2 | |
718e3744 | 1964 | |
718e3744 | 1965 | /* BGP timers default value. */ |
5ca5f1c8 | 1966 | #define BGP_INIT_START_TIMER 1 |
5d5393b9 DL |
1967 | /* The following 3 are RFC defaults that are overridden in bgp_vty.c with |
1968 | * version-/profile-specific values. The values here do not matter, they only | |
1969 | * exist to provide a clear layering separation between core and CLI. | |
1970 | */ | |
1971 | #define BGP_DEFAULT_HOLDTIME 180 | |
1972 | #define BGP_DEFAULT_KEEPALIVE 60 | |
1973 | #define BGP_DEFAULT_CONNECT_RETRY 120 | |
1974 | ||
12179ba3 | 1975 | #define BGP_DEFAULT_EBGP_ROUTEADV 0 |
1670355a | 1976 | #define BGP_DEFAULT_IBGP_ROUTEADV 0 |
718e3744 | 1977 | |
6c537a18 DS |
1978 | /* BGP RFC 4271 DelayOpenTime default value */ |
1979 | #define BGP_DEFAULT_DELAYOPEN 120 | |
1980 | ||
718e3744 | 1981 | /* BGP default local preference. */ |
1982 | #define BGP_DEFAULT_LOCAL_PREF 100 | |
1983 | ||
7f323236 DW |
1984 | /* BGP local-preference to send when 'bgp graceful-shutdown' |
1985 | * is configured */ | |
1986 | #define BGP_GSHUT_LOCAL_PREF 0 | |
1987 | ||
3f9c7369 DS |
1988 | /* BGP default subgroup packet queue max . */ |
1989 | #define BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX 40 | |
1990 | ||
538621f2 | 1991 | /* BGP graceful restart */ |
1992 | #define BGP_DEFAULT_RESTART_TIME 120 | |
1993 | #define BGP_DEFAULT_STALEPATH_TIME 360 | |
cfd47646 | 1994 | #define BGP_DEFAULT_SELECT_DEFERRAL_TIME 360 |
2d3dd828 | 1995 | #define BGP_DEFAULT_RIB_STALE_TIME 500 |
c208c586 | 1996 | #define BGP_DEFAULT_UPDATE_ADVERTISEMENT_TIME 1 |
538621f2 | 1997 | |
8606be87 | 1998 | /* BGP Long-lived Graceful Restart */ |
7f8a9a24 | 1999 | #define BGP_DEFAULT_LLGR_STALE_TIME 0 |
8606be87 | 2000 | |
718e3744 | 2001 | /* BGP uptime string length. */ |
2002 | #define BGP_UPTIME_LEN 25 | |
2003 | ||
2004 | /* Default configuration settings for bgpd. */ | |
2005 | #define BGP_VTY_PORT 2605 | |
718e3744 | 2006 | #define BGP_DEFAULT_CONFIG "bgpd.conf" |
2007 | ||
f14e6fdb DS |
2008 | /* BGP Dynamic Neighbors feature */ |
2009 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT 100 | |
2010 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_MIN 1 | |
5b1b6b8b | 2011 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_MAX 65535 |
f14e6fdb | 2012 | |
97a52c82 DA |
2013 | /* BGP AIGP */ |
2014 | #define BGP_AIGP_TLV_RESERVED 0 /* AIGP Reserved */ | |
2015 | #define BGP_AIGP_TLV_METRIC 1 /* AIGP Metric */ | |
2016 | #define BGP_AIGP_TLV_METRIC_LEN 11 | |
2017 | #define BGP_AIGP_TLV_METRIC_MAX 0xffffffffffffffffULL | |
2018 | #define BGP_AIGP_TLV_METRIC_DESC "Accumulated IGP Metric" | |
2019 | ||
718e3744 | 2020 | /* Flag for peer_clear_soft(). */ |
d62a17ae | 2021 | enum bgp_clear_type { |
2022 | BGP_CLEAR_SOFT_NONE, | |
2023 | BGP_CLEAR_SOFT_OUT, | |
2024 | BGP_CLEAR_SOFT_IN, | |
2025 | BGP_CLEAR_SOFT_BOTH, | |
3cb14f26 DS |
2026 | BGP_CLEAR_SOFT_IN_ORF_PREFIX, |
2027 | BGP_CLEAR_MESSAGE_STATS | |
718e3744 | 2028 | }; |
2029 | ||
2030 | /* Macros. */ | |
424ab01d | 2031 | #define BGP_INPUT(P) ((P)->curr) |
2d34fb80 | 2032 | #define BGP_INPUT_PNT(P) (stream_pnt(BGP_INPUT(P))) |
d62a17ae | 2033 | #define BGP_IS_VALID_STATE_FOR_NOTIF(S) \ |
2034 | (((S) == OpenSent) || ((S) == OpenConfirm) || ((S) == Established)) | |
718e3744 | 2035 | |
718e3744 | 2036 | /* BGP error codes. */ |
4b7e23e9 DS |
2037 | enum bgp_create_error_code { |
2038 | BGP_SUCCESS = 0, | |
2039 | BGP_CREATED = 1, | |
2040 | BGP_ERR_INVALID_VALUE = -1, | |
2041 | BGP_ERR_INVALID_FLAG = -2, | |
2042 | BGP_ERR_INVALID_AS = -3, | |
e4aa4745 DS |
2043 | BGP_ERR_PEER_GROUP_MEMBER = -4, |
2044 | BGP_ERR_PEER_GROUP_NO_REMOTE_AS = -5, | |
2045 | BGP_ERR_PEER_GROUP_CANT_CHANGE = -6, | |
2046 | BGP_ERR_PEER_GROUP_MISMATCH = -7, | |
2047 | BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT = -8, | |
2048 | BGP_ERR_AS_MISMATCH = -9, | |
2049 | BGP_ERR_PEER_FLAG_CONFLICT = -10, | |
2050 | BGP_ERR_PEER_GROUP_SHUTDOWN = -11, | |
2051 | BGP_ERR_PEER_FILTER_CONFLICT = -12, | |
2052 | BGP_ERR_NOT_INTERNAL_PEER = -13, | |
2053 | BGP_ERR_REMOVE_PRIVATE_AS = -14, | |
2054 | BGP_ERR_AF_UNCONFIGURED = -15, | |
2055 | BGP_ERR_SOFT_RECONFIG_UNCONFIGURED = -16, | |
2056 | BGP_ERR_INSTANCE_MISMATCH = -17, | |
e4aa4745 DS |
2057 | BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS = -19, |
2058 | BGP_ERR_TCPSIG_FAILED = -20, | |
2059 | BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK = -21, | |
2060 | BGP_ERR_NO_IBGP_WITH_TTLHACK = -22, | |
2061 | BGP_ERR_NO_INTERFACE_CONFIG = -23, | |
e4aa4745 DS |
2062 | BGP_ERR_AS_OVERRIDE = -25, |
2063 | BGP_ERR_INVALID_DYNAMIC_NEIGHBORS_LIMIT = -26, | |
2064 | BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_EXISTS = -27, | |
2065 | BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND = -28, | |
2066 | BGP_ERR_INVALID_FOR_DYNAMIC_PEER = -29, | |
2067 | BGP_ERR_INVALID_FOR_DIRECT_PEER = -30, | |
2068 | BGP_ERR_PEER_SAFI_CONFLICT = -31, | |
4b7e23e9 DS |
2069 | |
2070 | /* BGP GR ERRORS */ | |
e4aa4745 DS |
2071 | BGP_ERR_GR_INVALID_CMD = -32, |
2072 | BGP_ERR_GR_OPERATION_FAILED = -33, | |
2073 | BGP_GR_NO_OPERATION = -34, | |
d864dd9e EB |
2074 | |
2075 | /*BGP Open Policy ERRORS */ | |
2076 | BGP_ERR_INVALID_ROLE_NAME = -35, | |
cfd01fc0 | 2077 | BGP_ERR_INVALID_INTERNAL_ROLE = -36 |
4b7e23e9 | 2078 | }; |
b0965c44 | 2079 | |
3f9c7369 DS |
2080 | /* |
2081 | * Enumeration of different policy kinds a peer can be configured with. | |
2082 | */ | |
d54f55f2 | 2083 | enum bgp_policy_type { |
d62a17ae | 2084 | BGP_POLICY_ROUTE_MAP, |
2085 | BGP_POLICY_FILTER_LIST, | |
2086 | BGP_POLICY_PREFIX_LIST, | |
2087 | BGP_POLICY_DISTRIBUTE_LIST, | |
d54f55f2 | 2088 | }; |
3f9c7369 | 2089 | |
dcc68b5e MS |
2090 | /* peer_flag_change_type. */ |
2091 | enum peer_change_type { | |
2092 | peer_change_none, | |
2093 | peer_change_reset, | |
2094 | peer_change_reset_in, | |
2095 | peer_change_reset_out, | |
2096 | }; | |
2097 | ||
718e3744 | 2098 | extern struct bgp_master *bm; |
37fe7731 | 2099 | extern unsigned int multipath_num; |
718e3744 | 2100 | |
718e3744 | 2101 | /* Prototypes. */ |
d62a17ae | 2102 | extern void bgp_terminate(void); |
2103 | extern void bgp_reset(void); | |
d62a17ae | 2104 | extern void bgp_zclient_reset(void); |
d62a17ae | 2105 | extern struct bgp *bgp_get_default(void); |
2106 | extern struct bgp *bgp_lookup(as_t, const char *); | |
2107 | extern struct bgp *bgp_lookup_by_name(const char *); | |
2108 | extern struct bgp *bgp_lookup_by_vrf_id(vrf_id_t); | |
e2f3a930 T |
2109 | extern struct bgp *bgp_get_evpn(void); |
2110 | extern void bgp_set_evpn(struct bgp *bgp); | |
d62a17ae | 2111 | extern struct peer *peer_lookup(struct bgp *, union sockunion *); |
2112 | extern struct peer *peer_lookup_by_conf_if(struct bgp *, const char *); | |
04b6bdc0 | 2113 | extern struct peer *peer_lookup_by_hostname(struct bgp *, const char *); |
d62a17ae | 2114 | extern void bgp_peer_conf_if_to_su_update(struct peer *); |
ffd0c037 | 2115 | extern int peer_group_listen_range_del(struct peer_group *, struct prefix *); |
d62a17ae | 2116 | extern struct peer_group *peer_group_lookup(struct bgp *, const char *); |
2117 | extern struct peer_group *peer_group_get(struct bgp *, const char *); | |
2118 | extern struct peer *peer_create_bind_dynamic_neighbor(struct bgp *, | |
2119 | union sockunion *, | |
2120 | struct peer_group *); | |
2121 | extern struct prefix * | |
2122 | peer_group_lookup_dynamic_neighbor_range(struct peer_group *, struct prefix *); | |
2123 | extern struct peer_group *peer_group_lookup_dynamic_neighbor(struct bgp *, | |
2124 | struct prefix *, | |
2125 | struct prefix **); | |
2126 | extern struct peer *peer_lookup_dynamic_neighbor(struct bgp *, | |
2127 | union sockunion *); | |
28066f4b DS |
2128 | |
2129 | /* | |
2130 | * Peers are incredibly easy to memory leak | |
2131 | * due to the various ways that they are actually used | |
2132 | * Provide some functionality to debug locks and unlocks | |
2133 | */ | |
2134 | extern struct peer *peer_lock_with_caller(const char *, struct peer *); | |
2135 | extern struct peer *peer_unlock_with_caller(const char *, struct peer *); | |
2136 | #define peer_unlock(A) peer_unlock_with_caller(__FUNCTION__, (A)) | |
2137 | #define peer_lock(B) peer_lock_with_caller(__FUNCTION__, (B)) | |
2138 | ||
3061acc2 DA |
2139 | extern enum bgp_peer_sort peer_sort(struct peer *peer); |
2140 | extern enum bgp_peer_sort peer_sort_lookup(struct peer *peer); | |
bf0d28dc | 2141 | |
3dc339cd DA |
2142 | extern bool peer_active(struct peer *); |
2143 | extern bool peer_active_nego(struct peer *); | |
10711563 DA |
2144 | extern bool peer_afc_received(struct peer *peer); |
2145 | extern bool peer_afc_advertised(struct peer *peer); | |
d62a17ae | 2146 | extern void bgp_recalculate_all_bestpaths(struct bgp *bgp); |
534db980 DS |
2147 | extern struct peer *peer_create(union sockunion *su, const char *conf_if, |
2148 | struct bgp *bgp, as_t local_as, as_t remote_as, | |
2149 | int as_type, struct peer_group *group, | |
de76ed8a | 2150 | bool config_node, const char *as_str); |
d62a17ae | 2151 | extern struct peer *peer_create_accept(struct bgp *); |
2152 | extern void peer_xfer_config(struct peer *dst, struct peer *src); | |
94d4c685 DS |
2153 | extern char *peer_uptime(time_t uptime2, char *buf, size_t len, bool use_json, |
2154 | json_object *json); | |
856ca177 | 2155 | |
d62a17ae | 2156 | extern int bgp_config_write(struct vty *); |
6b0655a2 | 2157 | |
85e9cd9a AMR |
2158 | extern void bgp_master_init(struct thread_master *master, const int buffer_size, |
2159 | struct list *addresses); | |
718e3744 | 2160 | |
f533be73 | 2161 | extern void bgp_init(unsigned short instance); |
419dfe6a | 2162 | extern void bgp_pthreads_run(void); |
2d4ee774 | 2163 | extern void bgp_pthreads_finish(void); |
d62a17ae | 2164 | extern void bgp_route_map_init(void); |
2165 | extern void bgp_session_reset(struct peer *); | |
718e3744 | 2166 | |
d62a17ae | 2167 | extern int bgp_option_set(int); |
2168 | extern int bgp_option_unset(int); | |
2169 | extern int bgp_option_check(int); | |
718e3744 | 2170 | |
c163f297 DS |
2171 | /* set the bgp no-rib option during runtime and remove installed routes */ |
2172 | extern void bgp_option_norib_set_runtime(void); | |
2173 | ||
2174 | /* unset the bgp no-rib option during runtime and reset all peers */ | |
2175 | extern void bgp_option_norib_unset_runtime(void); | |
2176 | ||
9eb11997 | 2177 | extern int bgp_get(struct bgp **bgp, as_t *as, const char *name, |
e55b0883 PG |
2178 | enum bgp_instance_type kind, const char *as_pretty, |
2179 | enum asnotation_mode asnotation); | |
d62a17ae | 2180 | extern void bgp_instance_up(struct bgp *); |
2181 | extern void bgp_instance_down(struct bgp *); | |
2182 | extern int bgp_delete(struct bgp *); | |
718e3744 | 2183 | |
e5619c28 PG |
2184 | extern int bgp_handle_socket(struct bgp *bgp, struct vrf *vrf, |
2185 | vrf_id_t old_vrf_id, bool create); | |
2186 | ||
d62a17ae | 2187 | extern void bgp_router_id_zebra_bump(vrf_id_t, const struct prefix *); |
3dc339cd | 2188 | extern void bgp_router_id_static_set(struct bgp *, struct in_addr); |
718e3744 | 2189 | |
9acb67cb | 2190 | extern void bm_wait_for_fib_set(bool set); |
c208c586 | 2191 | extern void bgp_suppress_fib_pending_set(struct bgp *bgp, bool set); |
0b1fb52c DA |
2192 | extern void bgp_cluster_id_set(struct bgp *bgp, struct in_addr *cluster_id); |
2193 | extern void bgp_cluster_id_unset(struct bgp *bgp); | |
718e3744 | 2194 | |
7e14d0fa PG |
2195 | extern void bgp_confederation_id_set(struct bgp *bgp, as_t as, |
2196 | const char *as_str); | |
0b1fb52c | 2197 | extern void bgp_confederation_id_unset(struct bgp *bgp); |
3dc339cd | 2198 | extern bool bgp_confederation_peers_check(struct bgp *, as_t); |
718e3744 | 2199 | |
7e14d0fa PG |
2200 | extern void bgp_confederation_peers_add(struct bgp *bgp, as_t as, |
2201 | const char *as_str); | |
0b1fb52c | 2202 | extern void bgp_confederation_peers_remove(struct bgp *bgp, as_t as); |
718e3744 | 2203 | |
3dc339cd | 2204 | extern void bgp_timers_set(struct bgp *, uint32_t keepalive, uint32_t holdtime, |
6c537a18 | 2205 | uint32_t connect_retry, uint32_t delayopen); |
3dc339cd | 2206 | extern void bgp_timers_unset(struct bgp *); |
718e3744 | 2207 | |
0b1fb52c DA |
2208 | extern void bgp_default_local_preference_set(struct bgp *bgp, |
2209 | uint32_t local_pref); | |
2210 | extern void bgp_default_local_preference_unset(struct bgp *bgp); | |
718e3744 | 2211 | |
0b1fb52c DA |
2212 | extern void bgp_default_subgroup_pkt_queue_max_set(struct bgp *bgp, |
2213 | uint32_t queue_size); | |
2214 | extern void bgp_default_subgroup_pkt_queue_max_unset(struct bgp *bgp); | |
3f9c7369 | 2215 | |
0b1fb52c DA |
2216 | extern void bgp_listen_limit_set(struct bgp *bgp, int listen_limit); |
2217 | extern void bgp_listen_limit_unset(struct bgp *bgp); | |
f14e6fdb | 2218 | |
3dc339cd DA |
2219 | extern bool bgp_update_delay_active(struct bgp *); |
2220 | extern bool bgp_update_delay_configured(struct bgp *); | |
0b1fb52c | 2221 | extern bool bgp_afi_safi_peer_exists(struct bgp *bgp, afi_t afi, safi_t safi); |
de76ed8a PG |
2222 | extern void peer_as_change(struct peer *peer, as_t as, int as_type, |
2223 | const char *as_str); | |
2224 | extern int peer_remote_as(struct bgp *bgp, union sockunion *su, | |
2225 | const char *conf_if, as_t *as, int as_type, | |
2226 | const char *as_str); | |
2227 | extern int peer_group_remote_as(struct bgp *bgp, const char *peer_str, as_t *as, | |
2228 | int as_type, const char *as_str); | |
d62a17ae | 2229 | extern int peer_delete(struct peer *peer); |
3dc339cd | 2230 | extern void peer_notify_unconfig(struct peer *peer); |
d62a17ae | 2231 | extern int peer_group_delete(struct peer_group *); |
2232 | extern int peer_group_remote_as_delete(struct peer_group *); | |
f14e6fdb | 2233 | extern int peer_group_listen_range_add(struct peer_group *, struct prefix *); |
3dc339cd | 2234 | extern void peer_group_notify_unconfig(struct peer_group *group); |
718e3744 | 2235 | |
d62a17ae | 2236 | extern int peer_activate(struct peer *, afi_t, safi_t); |
2237 | extern int peer_deactivate(struct peer *, afi_t, safi_t); | |
718e3744 | 2238 | |
d62a17ae | 2239 | extern int peer_group_bind(struct bgp *, union sockunion *, struct peer *, |
2240 | struct peer_group *, as_t *); | |
718e3744 | 2241 | |
83194f39 DA |
2242 | extern int peer_flag_set(struct peer *peer, uint64_t flag); |
2243 | extern int peer_flag_unset(struct peer *peer, uint64_t flag); | |
2244 | extern void peer_flag_inherit(struct peer *peer, uint64_t flag); | |
718e3744 | 2245 | |
da5e1a58 DA |
2246 | extern int peer_af_flag_set(struct peer *peer, afi_t afi, safi_t safi, |
2247 | uint64_t flag); | |
2248 | extern int peer_af_flag_unset(struct peer *peer, afi_t afi, safi_t safi, | |
2249 | uint64_t flag); | |
d7c0a89a | 2250 | extern int peer_af_flag_check(struct peer *, afi_t, safi_t, uint32_t); |
cf9ac8bf | 2251 | extern void peer_af_flag_inherit(struct peer *peer, afi_t afi, safi_t safi, |
da5e1a58 | 2252 | uint64_t flag); |
dcc68b5e MS |
2253 | extern void peer_change_action(struct peer *peer, afi_t afi, safi_t safi, |
2254 | enum peer_change_type type); | |
718e3744 | 2255 | |
d62a17ae | 2256 | extern int peer_ebgp_multihop_set(struct peer *, int); |
2257 | extern int peer_ebgp_multihop_unset(struct peer *); | |
2258 | extern int is_ebgp_multihop_configured(struct peer *peer); | |
718e3744 | 2259 | |
8f2d6021 | 2260 | extern int peer_role_set(struct peer *peer, uint8_t role, bool strict_mode); |
d864dd9e EB |
2261 | extern int peer_role_unset(struct peer *peer); |
2262 | ||
3dc339cd DA |
2263 | extern void peer_description_set(struct peer *, const char *); |
2264 | extern void peer_description_unset(struct peer *); | |
718e3744 | 2265 | |
d62a17ae | 2266 | extern int peer_update_source_if_set(struct peer *, const char *); |
0b1fb52c DA |
2267 | extern void peer_update_source_addr_set(struct peer *peer, |
2268 | const union sockunion *su); | |
2269 | extern void peer_update_source_unset(struct peer *peer); | |
718e3744 | 2270 | |
1de27621 DA |
2271 | extern int peer_default_originate_set(struct peer *peer, afi_t afi, safi_t safi, |
2272 | const char *rmap, | |
2273 | struct route_map *route_map); | |
d62a17ae | 2274 | extern int peer_default_originate_unset(struct peer *, afi_t, safi_t); |
d1adb448 PG |
2275 | extern void bgp_tcp_keepalive_set(struct bgp *bgp, uint16_t idle, |
2276 | uint16_t interval, uint16_t probes); | |
2277 | extern void bgp_tcp_keepalive_unset(struct bgp *bgp); | |
718e3744 | 2278 | |
3dc339cd DA |
2279 | extern void peer_port_set(struct peer *, uint16_t); |
2280 | extern void peer_port_unset(struct peer *); | |
718e3744 | 2281 | |
d7c0a89a | 2282 | extern int peer_weight_set(struct peer *, afi_t, safi_t, uint16_t); |
d62a17ae | 2283 | extern int peer_weight_unset(struct peer *, afi_t, safi_t); |
718e3744 | 2284 | |
d7c0a89a QY |
2285 | extern int peer_timers_set(struct peer *, uint32_t keepalive, |
2286 | uint32_t holdtime); | |
d62a17ae | 2287 | extern int peer_timers_unset(struct peer *); |
718e3744 | 2288 | |
d7c0a89a | 2289 | extern int peer_timers_connect_set(struct peer *, uint32_t); |
d62a17ae | 2290 | extern int peer_timers_connect_unset(struct peer *); |
718e3744 | 2291 | |
d7c0a89a | 2292 | extern int peer_advertise_interval_set(struct peer *, uint32_t); |
d62a17ae | 2293 | extern int peer_advertise_interval_unset(struct peer *); |
718e3744 | 2294 | |
6c537a18 DS |
2295 | extern int peer_timers_delayopen_set(struct peer *peer, uint32_t delayopen); |
2296 | extern int peer_timers_delayopen_unset(struct peer *peer); | |
2297 | ||
d62a17ae | 2298 | extern void peer_interface_set(struct peer *, const char *); |
2299 | extern void peer_interface_unset(struct peer *); | |
718e3744 | 2300 | |
d62a17ae | 2301 | extern int peer_distribute_set(struct peer *, afi_t, safi_t, int, const char *); |
2302 | extern int peer_distribute_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 2303 | |
d62a17ae | 2304 | extern int peer_allowas_in_set(struct peer *, afi_t, safi_t, int, int); |
2305 | extern int peer_allowas_in_unset(struct peer *, afi_t, safi_t); | |
718e3744 | 2306 | |
de76ed8a PG |
2307 | extern int peer_local_as_set(struct peer *peer, as_t as, bool no_prepend, |
2308 | bool replace_as, const char *as_str); | |
d62a17ae | 2309 | extern int peer_local_as_unset(struct peer *); |
718e3744 | 2310 | |
d62a17ae | 2311 | extern int peer_prefix_list_set(struct peer *, afi_t, safi_t, int, |
2312 | const char *); | |
2313 | extern int peer_prefix_list_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 2314 | |
d62a17ae | 2315 | extern int peer_aslist_set(struct peer *, afi_t, safi_t, int, const char *); |
2316 | extern int peer_aslist_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 2317 | |
1de27621 DA |
2318 | extern int peer_route_map_set(struct peer *peer, afi_t afi, safi_t safi, int, |
2319 | const char *name, struct route_map *route_map); | |
d62a17ae | 2320 | extern int peer_route_map_unset(struct peer *, afi_t, safi_t, int); |
718e3744 | 2321 | |
1de27621 DA |
2322 | extern int peer_unsuppress_map_set(struct peer *peer, afi_t afi, safi_t safi, |
2323 | const char *name, | |
2324 | struct route_map *route_map); | |
0df7c91f | 2325 | |
7f7940e6 MK |
2326 | extern int peer_advertise_map_set(struct peer *peer, afi_t afi, safi_t safi, |
2327 | const char *advertise_name, | |
2328 | struct route_map *advertise_map, | |
cf2ad4d8 MK |
2329 | const char *condition_name, |
2330 | struct route_map *condition_map, | |
2331 | bool condition); | |
7f7940e6 | 2332 | |
d62a17ae | 2333 | extern int peer_password_set(struct peer *, const char *); |
2334 | extern int peer_password_unset(struct peer *); | |
0df7c91f | 2335 | |
d62a17ae | 2336 | extern int peer_unsuppress_map_unset(struct peer *, afi_t, safi_t); |
718e3744 | 2337 | |
7f7940e6 MK |
2338 | extern int peer_advertise_map_unset(struct peer *peer, afi_t afi, safi_t safi, |
2339 | const char *advertise_name, | |
2340 | struct route_map *advertise_map, | |
cf2ad4d8 MK |
2341 | const char *condition_name, |
2342 | struct route_map *condition_map, | |
2343 | bool condition); | |
7f7940e6 | 2344 | |
d7c0a89a | 2345 | extern int peer_maximum_prefix_set(struct peer *, afi_t, safi_t, uint32_t, |
9cbd06e0 | 2346 | uint8_t, int, uint16_t, bool force); |
d62a17ae | 2347 | extern int peer_maximum_prefix_unset(struct peer *, afi_t, safi_t); |
718e3744 | 2348 | |
d0bf49ec LS |
2349 | extern void peer_maximum_prefix_out_refresh_routes(struct peer *peer, afi_t afi, |
2350 | safi_t safi); | |
80444d30 LS |
2351 | extern int peer_maximum_prefix_out_set(struct peer *peer, afi_t afi, |
2352 | safi_t safi, uint32_t max); | |
2353 | extern int peer_maximum_prefix_out_unset(struct peer *peer, afi_t afi, | |
2354 | safi_t safi); | |
d0bf49ec | 2355 | |
d62a17ae | 2356 | extern int peer_clear(struct peer *, struct listnode **); |
2357 | extern int peer_clear_soft(struct peer *, afi_t, safi_t, enum bgp_clear_type); | |
93406d87 | 2358 | |
d62a17ae | 2359 | extern int peer_ttl_security_hops_set(struct peer *, int); |
2360 | extern int peer_ttl_security_hops_unset(struct peer *); | |
fa411a21 | 2361 | |
3dc339cd DA |
2362 | extern void peer_tx_shutdown_message_set(struct peer *, const char *msg); |
2363 | extern void peer_tx_shutdown_message_unset(struct peer *); | |
73d70fa6 | 2364 | |
cc9f21da | 2365 | extern void bgp_route_map_update_timer(struct thread *thread); |
8f2d6021 | 2366 | extern const char *bgp_get_name_by_role(uint8_t role); |
17571c4a | 2367 | extern enum asnotation_mode bgp_get_asnotation(struct bgp *bgp); |
d864dd9e | 2368 | |
518f0eb1 | 2369 | extern void bgp_route_map_terminate(void); |
16286195 | 2370 | |
d62a17ae | 2371 | extern int peer_cmp(struct peer *p1, struct peer *p2); |
3f9c7369 | 2372 | |
5c525538 | 2373 | extern int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi, iana_safi_t pkt_safi, |
d62a17ae | 2374 | afi_t *afi, safi_t *safi); |
2375 | extern int bgp_map_afi_safi_int2iana(afi_t afi, safi_t safi, | |
a4d82a8a PZ |
2376 | iana_afi_t *pkt_afi, |
2377 | iana_safi_t *pkt_safi); | |
9cabb64b | 2378 | |
d62a17ae | 2379 | extern struct peer_af *peer_af_create(struct peer *, afi_t, safi_t); |
2380 | extern struct peer_af *peer_af_find(struct peer *, afi_t, safi_t); | |
2381 | extern int peer_af_delete(struct peer *, afi_t, safi_t); | |
3f9c7369 | 2382 | |
736b68f3 | 2383 | extern void bgp_shutdown_enable(struct bgp *bgp, const char *msg); |
9cf59432 DS |
2384 | extern void bgp_shutdown_disable(struct bgp *bgp); |
2385 | ||
ffd0c037 | 2386 | extern void bgp_close(void); |
92375c91 | 2387 | extern void bgp_free(struct bgp *); |
b0965c44 | 2388 | void bgp_gr_apply_running_config(void); |
2389 | ||
2390 | /* BGP GR */ | |
b0965c44 | 2391 | int bgp_global_gr_init(struct bgp *bgp); |
2392 | int bgp_peer_gr_init(struct peer *peer); | |
92375c91 | 2393 | |
2d3dd828 | 2394 | |
36235319 QY |
2395 | #define BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(_bgp, _peer_list) \ |
2396 | do { \ | |
2397 | struct peer *peer_loop; \ | |
2398 | bool gr_router_detected = false; \ | |
2399 | struct listnode *node = {0}; \ | |
2400 | for (ALL_LIST_ELEMENTS_RO(_peer_list, node, peer_loop)) { \ | |
2401 | if (CHECK_FLAG(peer_loop->flags, \ | |
2402 | PEER_FLAG_GRACEFUL_RESTART)) \ | |
2403 | gr_router_detected = true; \ | |
2404 | } \ | |
2405 | if (gr_router_detected \ | |
2406 | && _bgp->present_zebra_gr_state == ZEBRA_GR_DISABLE) { \ | |
2407 | bgp_zebra_send_capabilities(_bgp, false); \ | |
2408 | } else if (!gr_router_detected \ | |
2409 | && _bgp->present_zebra_gr_state \ | |
2410 | == ZEBRA_GR_ENABLE) { \ | |
2411 | bgp_zebra_send_capabilities(_bgp, true); \ | |
2412 | } \ | |
2413 | } while (0) | |
2d3dd828 | 2414 | |
92375c91 JB |
2415 | static inline struct bgp *bgp_lock(struct bgp *bgp) |
2416 | { | |
2417 | bgp->lock++; | |
2418 | return bgp; | |
2419 | } | |
2420 | ||
2421 | static inline void bgp_unlock(struct bgp *bgp) | |
2422 | { | |
2423 | assert(bgp->lock > 0); | |
2424 | if (--bgp->lock == 0) | |
2425 | bgp_free(bgp); | |
2426 | } | |
ffd0c037 | 2427 | |
d62a17ae | 2428 | static inline int afindex(afi_t afi, safi_t safi) |
3f9c7369 | 2429 | { |
d62a17ae | 2430 | switch (afi) { |
2431 | case AFI_IP: | |
2432 | switch (safi) { | |
2433 | case SAFI_UNICAST: | |
2434 | return BGP_AF_IPV4_UNICAST; | |
d62a17ae | 2435 | case SAFI_MULTICAST: |
2436 | return BGP_AF_IPV4_MULTICAST; | |
d62a17ae | 2437 | case SAFI_LABELED_UNICAST: |
2438 | return BGP_AF_IPV4_LBL_UNICAST; | |
d62a17ae | 2439 | case SAFI_MPLS_VPN: |
2440 | return BGP_AF_IPV4_VPN; | |
d62a17ae | 2441 | case SAFI_ENCAP: |
2442 | return BGP_AF_IPV4_ENCAP; | |
7c40bf39 | 2443 | case SAFI_FLOWSPEC: |
2444 | return BGP_AF_IPV4_FLOWSPEC; | |
58cf0823 DS |
2445 | case SAFI_EVPN: |
2446 | case SAFI_UNSPEC: | |
2447 | case SAFI_MAX: | |
d62a17ae | 2448 | return BGP_AF_MAX; |
d62a17ae | 2449 | } |
2450 | break; | |
2451 | case AFI_IP6: | |
2452 | switch (safi) { | |
2453 | case SAFI_UNICAST: | |
2454 | return BGP_AF_IPV6_UNICAST; | |
d62a17ae | 2455 | case SAFI_MULTICAST: |
2456 | return BGP_AF_IPV6_MULTICAST; | |
d62a17ae | 2457 | case SAFI_LABELED_UNICAST: |
2458 | return BGP_AF_IPV6_LBL_UNICAST; | |
d62a17ae | 2459 | case SAFI_MPLS_VPN: |
2460 | return BGP_AF_IPV6_VPN; | |
d62a17ae | 2461 | case SAFI_ENCAP: |
2462 | return BGP_AF_IPV6_ENCAP; | |
7c40bf39 | 2463 | case SAFI_FLOWSPEC: |
2464 | return BGP_AF_IPV6_FLOWSPEC; | |
58cf0823 DS |
2465 | case SAFI_EVPN: |
2466 | case SAFI_UNSPEC: | |
2467 | case SAFI_MAX: | |
d62a17ae | 2468 | return BGP_AF_MAX; |
d62a17ae | 2469 | } |
2470 | break; | |
2471 | case AFI_L2VPN: | |
2472 | switch (safi) { | |
2473 | case SAFI_EVPN: | |
2474 | return BGP_AF_L2VPN_EVPN; | |
58cf0823 DS |
2475 | case SAFI_UNICAST: |
2476 | case SAFI_MULTICAST: | |
2477 | case SAFI_LABELED_UNICAST: | |
2478 | case SAFI_MPLS_VPN: | |
2479 | case SAFI_ENCAP: | |
2480 | case SAFI_FLOWSPEC: | |
2481 | case SAFI_UNSPEC: | |
2482 | case SAFI_MAX: | |
d62a17ae | 2483 | return BGP_AF_MAX; |
d62a17ae | 2484 | } |
58cf0823 DS |
2485 | break; |
2486 | case AFI_UNSPEC: | |
2487 | case AFI_MAX: | |
d62a17ae | 2488 | return BGP_AF_MAX; |
3f9c7369 | 2489 | } |
58cf0823 DS |
2490 | |
2491 | assert(!"Reached end of function we should never hit"); | |
3f9c7369 DS |
2492 | } |
2493 | ||
c8560b44 | 2494 | /* If the peer is not a peer-group but is bound to a peer-group return 1 */ |
d62a17ae | 2495 | static inline int peer_group_active(struct peer *peer) |
3f9c7369 | 2496 | { |
d62a17ae | 2497 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) && peer->group) |
2498 | return 1; | |
2499 | return 0; | |
3f9c7369 DS |
2500 | } |
2501 | ||
2502 | /* If peer is negotiated at least one address family return 1. */ | |
d62a17ae | 2503 | static inline int peer_afi_active_nego(const struct peer *peer, afi_t afi) |
3f9c7369 | 2504 | { |
d62a17ae | 2505 | if (peer->afc_nego[afi][SAFI_UNICAST] |
2506 | || peer->afc_nego[afi][SAFI_MULTICAST] | |
2507 | || peer->afc_nego[afi][SAFI_LABELED_UNICAST] | |
2508 | || peer->afc_nego[afi][SAFI_MPLS_VPN] | |
2509 | || peer->afc_nego[afi][SAFI_ENCAP] | |
7c40bf39 | 2510 | || peer->afc_nego[afi][SAFI_FLOWSPEC] |
d62a17ae | 2511 | || peer->afc_nego[afi][SAFI_EVPN]) |
2512 | return 1; | |
2513 | return 0; | |
3f9c7369 DS |
2514 | } |
2515 | ||
f14e6fdb | 2516 | /* If at least one address family activated for group, return 1. */ |
d62a17ae | 2517 | static inline int peer_group_af_configured(struct peer_group *group) |
f14e6fdb | 2518 | { |
d62a17ae | 2519 | struct peer *peer = group->conf; |
2520 | ||
2521 | if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST] | |
2522 | || peer->afc[AFI_IP][SAFI_LABELED_UNICAST] | |
7c40bf39 | 2523 | || peer->afc[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 2524 | || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP] |
2525 | || peer->afc[AFI_IP6][SAFI_UNICAST] | |
2526 | || peer->afc[AFI_IP6][SAFI_MULTICAST] | |
2527 | || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST] | |
2528 | || peer->afc[AFI_IP6][SAFI_MPLS_VPN] | |
ba0fcaf6 | 2529 | || peer->afc[AFI_IP6][SAFI_ENCAP] |
7c40bf39 | 2530 | || peer->afc[AFI_IP6][SAFI_FLOWSPEC] |
ba0fcaf6 | 2531 | || peer->afc[AFI_L2VPN][SAFI_EVPN]) |
d62a17ae | 2532 | return 1; |
2533 | return 0; | |
f14e6fdb DS |
2534 | } |
2535 | ||
d62a17ae | 2536 | static inline char *timestamp_string(time_t ts) |
3f9c7369 | 2537 | { |
d62a17ae | 2538 | time_t tbuf; |
083ec940 | 2539 | tbuf = time(NULL) - (monotime(NULL) - ts); |
d62a17ae | 2540 | return ctime(&tbuf); |
3f9c7369 DS |
2541 | } |
2542 | ||
feb17238 | 2543 | static inline bool peer_established(struct peer *peer) |
3f9c7369 | 2544 | { |
feb17238 | 2545 | return peer->status == Established; |
3f9c7369 DS |
2546 | } |
2547 | ||
af8496af | 2548 | static inline bool peer_dynamic_neighbor(struct peer *peer) |
f14e6fdb | 2549 | { |
af8496af DA |
2550 | return CHECK_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR); |
2551 | } | |
2552 | ||
2553 | static inline bool peer_dynamic_neighbor_no_nsf(struct peer *peer) | |
2554 | { | |
2555 | return (peer_dynamic_neighbor(peer) && | |
2556 | !CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)); | |
f14e6fdb DS |
2557 | } |
2558 | ||
d62a17ae | 2559 | static inline int peer_cap_enhe(struct peer *peer, afi_t afi, safi_t safi) |
8a92a8a0 | 2560 | { |
d62a17ae | 2561 | return (CHECK_FLAG(peer->af_cap[afi][safi], PEER_CAP_ENHE_AF_NEGO)); |
8a92a8a0 DS |
2562 | } |
2563 | ||
d1be1f08 | 2564 | /* Lookup VRF for BGP instance based on its type. */ |
d62a17ae | 2565 | static inline struct vrf *bgp_vrf_lookup_by_instance_type(struct bgp *bgp) |
d1be1f08 | 2566 | { |
d62a17ae | 2567 | struct vrf *vrf; |
d1be1f08 | 2568 | |
d62a17ae | 2569 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) |
2570 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
2571 | else if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
2572 | vrf = vrf_lookup_by_name(bgp->name); | |
2573 | else | |
2574 | vrf = NULL; | |
d1be1f08 | 2575 | |
d62a17ae | 2576 | return vrf; |
d1be1f08 | 2577 | } |
2578 | ||
0d020cd6 PR |
2579 | static inline uint32_t bgp_vrf_interfaces(struct bgp *bgp, bool active) |
2580 | { | |
2581 | struct vrf *vrf; | |
2582 | struct interface *ifp; | |
2583 | uint32_t count = 0; | |
2584 | ||
2585 | /* if there is one interface in the vrf which is up then it is deemed | |
2586 | * active | |
2587 | */ | |
2588 | vrf = bgp_vrf_lookup_by_instance_type(bgp); | |
2589 | if (vrf == NULL) | |
2590 | return 0; | |
2591 | RB_FOREACH (ifp, if_name_head, &vrf->ifaces_by_name) { | |
5bcc6b46 | 2592 | if (strcmp(ifp->name, bgp->name) == 0) |
0d020cd6 PR |
2593 | continue; |
2594 | if (!active || if_is_up(ifp)) | |
2595 | count++; | |
2596 | } | |
2597 | return count; | |
2598 | } | |
2599 | ||
d1be1f08 | 2600 | /* Link BGP instance to VRF. */ |
d62a17ae | 2601 | static inline void bgp_vrf_link(struct bgp *bgp, struct vrf *vrf) |
d1be1f08 | 2602 | { |
d62a17ae | 2603 | bgp->vrf_id = vrf->vrf_id; |
92375c91 JB |
2604 | if (vrf->info != (void *)bgp) |
2605 | vrf->info = (void *)bgp_lock(bgp); | |
d1be1f08 | 2606 | } |
2607 | ||
2608 | /* Unlink BGP instance from VRF. */ | |
d62a17ae | 2609 | static inline void bgp_vrf_unlink(struct bgp *bgp, struct vrf *vrf) |
d1be1f08 | 2610 | { |
d62a17ae | 2611 | if (vrf->info == (void *)bgp) { |
2612 | vrf->info = NULL; | |
2613 | bgp_unlock(bgp); | |
2614 | } | |
2615 | bgp->vrf_id = VRF_UNKNOWN; | |
d1be1f08 | 2616 | } |
2617 | ||
637e5ba4 | 2618 | static inline bool bgp_in_graceful_shutdown(struct bgp *bgp) |
2619 | { | |
05bd726c | 2620 | /* True if either set for this instance or globally */ |
2621 | return (!!CHECK_FLAG(bgp->flags, BGP_FLAG_GRACEFUL_SHUTDOWN) || | |
2622 | !!CHECK_FLAG(bm->flags, BM_FLAG_GRACEFUL_SHUTDOWN)); | |
637e5ba4 | 2623 | } |
2624 | ||
65efcfce | 2625 | /* For benefit of rfapi */ |
d62a17ae | 2626 | extern struct peer *peer_new(struct bgp *bgp); |
dcc1615e DD |
2627 | |
2628 | extern struct peer *peer_lookup_in_view(struct vty *vty, struct bgp *bgp, | |
2629 | const char *ip_str, bool use_json); | |
bdaadb91 CS |
2630 | extern int bgp_lookup_by_as_name_type(struct bgp **bgp_val, as_t *as, |
2631 | const char *name, | |
2632 | enum bgp_instance_type inst_type); | |
dcc1615e | 2633 | |
7d8d0eab | 2634 | /* Hooks */ |
0d020cd6 | 2635 | DECLARE_HOOK(bgp_vrf_status_changed, (struct bgp *bgp, struct interface *ifp), |
8451921b DL |
2636 | (bgp, ifp)); |
2637 | DECLARE_HOOK(peer_status_changed, (struct peer *peer), (peer)); | |
2638 | DECLARE_HOOK(bgp_snmp_init_stats, (struct bgp *bgp), (bgp)); | |
2639 | DECLARE_HOOK(bgp_snmp_update_last_changed, (struct bgp *bgp), (bgp)); | |
7fd28dd2 PR |
2640 | DECLARE_HOOK(bgp_snmp_update_stats, |
2641 | (struct bgp_node *rn, struct bgp_path_info *pi, bool added), | |
8451921b | 2642 | (rn, pi, added)); |
b5b99af8 DS |
2643 | DECLARE_HOOK(bgp_rpki_prefix_status, |
2644 | (struct peer * peer, struct attr *attr, | |
2645 | const struct prefix *prefix), | |
8451921b | 2646 | (peer, attr, prefix)); |
b5b99af8 | 2647 | |
d7b3cda6 | 2648 | void peer_nsf_stop(struct peer *peer); |
7d8d0eab | 2649 | |
4ab46701 AR |
2650 | void peer_tcp_mss_set(struct peer *peer, uint32_t tcp_mss); |
2651 | void peer_tcp_mss_unset(struct peer *peer); | |
1479ed2f DA |
2652 | |
2653 | extern void bgp_recalculate_afi_safi_bestpaths(struct bgp *bgp, afi_t afi, | |
2654 | safi_t safi); | |
e85e4a8d MK |
2655 | extern void peer_on_policy_change(struct peer *peer, afi_t afi, safi_t safi, |
2656 | int outbound); | |
a5c6a9b1 DA |
2657 | extern bool bgp_path_attribute_discard(struct peer *peer, char *buf, |
2658 | size_t size); | |
e2863b4f DA |
2659 | extern bool bgp_path_attribute_treat_as_withdraw(struct peer *peer, char *buf, |
2660 | size_t size); | |
f70c91dc DA |
2661 | #ifdef _FRR_ATTRIBUTE_PRINTFRR |
2662 | /* clang-format off */ | |
2663 | #pragma FRR printfrr_ext "%pBP" (struct peer *) | |
2664 | /* clang-format on */ | |
2665 | #endif | |
2666 | ||
00d252cb | 2667 | #endif /* _QUAGGA_BGPD_H */ |