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Commit | Line | Data |
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718e3744 | 1 | /* BGP message definition header. |
896014f4 DL |
2 | * Copyright (C) 1996, 97, 98, 99, 2000 Kunihiro Ishiguro |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
718e3744 | 20 | |
00d252cb | 21 | #ifndef _QUAGGA_BGPD_H |
22 | #define _QUAGGA_BGPD_H | |
23 | ||
19df7279 | 24 | #include "qobj.h" |
d3ecc69e QY |
25 | #include <pthread.h> |
26 | ||
2b9bcf30 | 27 | #include "hook.h" |
1ac267a2 | 28 | #include "frr_pthread.h" |
856ca177 | 29 | #include "lib/json.h" |
6aeb9e78 | 30 | #include "vrf.h" |
94c60424 | 31 | #include "vty.h" |
92a9e6f2 | 32 | #include "srv6.h" |
17136bf2 | 33 | #include "iana_afi.h" |
6aeb9e78 | 34 | |
718e3744 | 35 | /* For union sockunion. */ |
3f9c7369 | 36 | #include "queue.h" |
718e3744 | 37 | #include "sockunion.h" |
518f0eb1 | 38 | #include "routemap.h" |
ffd0c037 | 39 | #include "linklist.h" |
8efe88ea | 40 | #include "defaults.h" |
4a1ab8e4 | 41 | #include "bgp_memory.h" |
14c1a7bf | 42 | #include "bitfield.h" |
fe1dc5a3 | 43 | #include "vxlan.h" |
955bfd98 | 44 | #include "bgp_labelpool.h" |
dcc68b5e | 45 | #include "bgp_addpath_types.h" |
f663c581 | 46 | #include "bgp_nexthop.h" |
338f4a78 | 47 | #include "bgp_io.h" |
718e3744 | 48 | |
21bfce98 RZ |
49 | #include "lib/bfd.h" |
50 | ||
04b6bdc0 | 51 | #define BGP_MAX_HOSTNAME 64 /* Linux max, is larger than most other sys */ |
40520c36 | 52 | #define BGP_PEER_MAX_HASH_SIZE 16384 |
04b6bdc0 | 53 | |
5c81b96a | 54 | /* Default interval for IPv6 RAs when triggered by BGP unnumbered neighbor. */ |
55 | #define BGP_UNNUM_DEFAULT_RA_INTERVAL 10 | |
56 | ||
3f9c7369 DS |
57 | struct update_subgroup; |
58 | struct bpacket; | |
4762c213 | 59 | struct bgp_pbr_config; |
3f9c7369 | 60 | |
0299c004 DS |
61 | /* |
62 | * Allow the neighbor XXXX remote-as to take internal or external | |
d62a17ae | 63 | * AS_SPECIFIED is zero to auto-inherit original non-feature/enhancement |
64 | * behavior | |
0299c004 DS |
65 | * in the system. |
66 | */ | |
d62a17ae | 67 | enum { AS_UNSPECIFIED = 0, |
68 | AS_SPECIFIED, | |
69 | AS_INTERNAL, | |
70 | AS_EXTERNAL, | |
0299c004 DS |
71 | }; |
72 | ||
2d3dd828 | 73 | /* Zebra Gracaful Restart states */ |
74 | enum zebra_gr_mode { | |
75 | ZEBRA_GR_DISABLE = 0, | |
76 | ZEBRA_GR_ENABLE | |
77 | }; | |
78 | ||
718e3744 | 79 | /* Typedef BGP specific types. */ |
d7c0a89a QY |
80 | typedef uint32_t as_t; |
81 | typedef uint16_t as16_t; /* we may still encounter 16 Bit asnums */ | |
82 | typedef uint16_t bgp_size_t; | |
718e3744 | 83 | |
d62a17ae | 84 | enum bgp_af_index { |
85 | BGP_AF_START, | |
86 | BGP_AF_IPV4_UNICAST = BGP_AF_START, | |
87 | BGP_AF_IPV4_MULTICAST, | |
88 | BGP_AF_IPV4_VPN, | |
89 | BGP_AF_IPV6_UNICAST, | |
90 | BGP_AF_IPV6_MULTICAST, | |
91 | BGP_AF_IPV6_VPN, | |
92 | BGP_AF_IPV4_ENCAP, | |
93 | BGP_AF_IPV6_ENCAP, | |
94 | BGP_AF_L2VPN_EVPN, | |
95 | BGP_AF_IPV4_LBL_UNICAST, | |
96 | BGP_AF_IPV6_LBL_UNICAST, | |
7c40bf39 | 97 | BGP_AF_IPV4_FLOWSPEC, |
98 | BGP_AF_IPV6_FLOWSPEC, | |
d62a17ae | 99 | BGP_AF_MAX |
3f9c7369 DS |
100 | }; |
101 | ||
d62a17ae | 102 | #define AF_FOREACH(af) for ((af) = BGP_AF_START; (af) < BGP_AF_MAX; (af)++) |
3f9c7369 | 103 | |
d1927ebe AS |
104 | #define FOREACH_SAFI(safi) \ |
105 | for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++) | |
3f9c7369 | 106 | |
1ac267a2 DL |
107 | extern struct frr_pthread *bgp_pth_io; |
108 | extern struct frr_pthread *bgp_pth_ka; | |
109 | ||
718e3744 | 110 | /* BGP master for system wide configurations and variables. */ |
d62a17ae | 111 | struct bgp_master { |
112 | /* BGP instance list. */ | |
113 | struct list *bgp; | |
114 | ||
115 | /* BGP thread master. */ | |
116 | struct thread_master *master; | |
718e3744 | 117 | |
d62a17ae | 118 | /* Listening sockets */ |
119 | struct list *listen_sockets; | |
718e3744 | 120 | |
d62a17ae | 121 | /* BGP port number. */ |
d7c0a89a | 122 | uint16_t port; |
3a02d1f7 | 123 | |
85e9cd9a AMR |
124 | /* Listener addresses */ |
125 | struct list *addresses; | |
718e3744 | 126 | |
48ecf8f5 DS |
127 | /* The Mac table */ |
128 | struct hash *self_mac_hash; | |
129 | ||
d62a17ae | 130 | /* BGP start time. */ |
131 | time_t start_time; | |
132 | ||
133 | /* Various BGP global configuration. */ | |
d7c0a89a | 134 | uint8_t options; |
d1adb448 | 135 | |
718e3744 | 136 | #define BGP_OPT_NO_FIB (1 << 0) |
d8a9922d DS |
137 | #define BGP_OPT_NO_LISTEN (1 << 1) |
138 | #define BGP_OPT_NO_ZEBRA (1 << 2) | |
3f9c7369 | 139 | |
d62a17ae | 140 | uint64_t updgrp_idspace; |
141 | uint64_t subgrp_idspace; | |
5fe9f963 | 142 | |
d62a17ae | 143 | /* timer to dampen route map changes */ |
144 | struct thread *t_rmap_update; /* Handle route map updates */ | |
d7c0a89a | 145 | uint32_t rmap_update_timer; /* Route map update timer */ |
5fe9f963 | 146 | #define RMAP_DEFAULT_UPDATE_TIMER 5 /* disabled by default */ |
19df7279 | 147 | |
e9eb5f63 | 148 | /* Id space for automatic RD derivation for an EVI/VRF */ |
149 | bitfield_t rd_idspace; | |
150 | ||
955bfd98 PZ |
151 | /* dynamic mpls label allocation pool */ |
152 | struct labelpool labelpool; | |
153 | ||
e2f3a930 T |
154 | /* BGP-EVPN VRF ID. Defaults to default VRF (if any) */ |
155 | struct bgp* bgp_evpn; | |
156 | ||
c2d020ad DS |
157 | /* How big should we set the socket buffer size */ |
158 | uint32_t socket_buffer; | |
159 | ||
9acb67cb DS |
160 | /* Should we do wait for fib install globally? */ |
161 | bool wait_for_fib; | |
162 | ||
c44ab6f1 AK |
163 | /* EVPN multihoming */ |
164 | struct bgp_evpn_mh_info *mh_info; | |
165 | ||
d70583f7 D |
166 | /* global update-delay timer values */ |
167 | uint16_t v_update_delay; | |
168 | uint16_t v_establish_wait; | |
169 | ||
05bd726c | 170 | uint32_t flags; |
171 | #define BM_FLAG_GRACEFUL_SHUTDOWN (1 << 0) | |
ec0acb80 | 172 | #define BM_FLAG_SEND_EXTRA_DATA_TO_ZEBRA (1 << 1) |
e46723a5 | 173 | |
97b4a0ec | 174 | bool terminating; /* global flag that sigint terminate seen */ |
425bd64b PS |
175 | |
176 | /* DSCP value for TCP sessions */ | |
177 | uint8_t tcp_dscp; | |
178 | ||
963b7ee4 | 179 | #define BM_DEFAULT_Q_LIMIT 10000 |
a0b937de | 180 | uint32_t inq_limit; |
963b7ee4 | 181 | uint32_t outq_limit; |
a0b937de | 182 | |
96244aca | 183 | QOBJ_FIELDS; |
718e3744 | 184 | }; |
96244aca | 185 | DECLARE_QOBJ_TYPE(bgp_master); |
718e3744 | 186 | |
73ac8160 | 187 | /* BGP route-map structure. */ |
d62a17ae | 188 | struct bgp_rmap { |
189 | char *name; | |
190 | struct route_map *map; | |
73ac8160 DS |
191 | }; |
192 | ||
d62a17ae | 193 | struct bgp_redist { |
d7c0a89a | 194 | unsigned short instance; |
7c8ff89e | 195 | |
d62a17ae | 196 | /* BGP redistribute metric configuration. */ |
d7c0a89a QY |
197 | uint8_t redist_metric_flag; |
198 | uint32_t redist_metric; | |
7c8ff89e | 199 | |
d62a17ae | 200 | /* BGP redistribute route-map. */ |
201 | struct bgp_rmap rmap; | |
7c8ff89e DS |
202 | }; |
203 | ||
9c2fd3fe | 204 | enum vpn_policy_direction { |
ddb5b488 PZ |
205 | BGP_VPN_POLICY_DIR_FROMVPN = 0, |
206 | BGP_VPN_POLICY_DIR_TOVPN = 1, | |
207 | BGP_VPN_POLICY_DIR_MAX = 2 | |
9c2fd3fe | 208 | }; |
ddb5b488 | 209 | |
e70e9f8e PZ |
210 | struct vpn_policy { |
211 | struct bgp *bgp; /* parent */ | |
212 | afi_t afi; | |
213 | struct ecommunity *rtlist[BGP_VPN_POLICY_DIR_MAX]; | |
214 | struct ecommunity *import_redirect_rtlist; | |
215 | char *rmap_name[BGP_VPN_POLICY_DIR_MAX]; | |
216 | struct route_map *rmap[BGP_VPN_POLICY_DIR_MAX]; | |
217 | ||
218 | /* should be mpls_label_t? */ | |
219 | uint32_t tovpn_label; /* may be MPLS_LABEL_NONE */ | |
220 | uint32_t tovpn_zebra_vrf_label_last_sent; | |
221 | struct prefix_rd tovpn_rd; | |
222 | struct prefix tovpn_nexthop; /* unset => set to 0 */ | |
223 | uint32_t flags; | |
224 | #define BGP_VPN_POLICY_TOVPN_LABEL_AUTO (1 << 0) | |
225 | #define BGP_VPN_POLICY_TOVPN_RD_SET (1 << 1) | |
226 | #define BGP_VPN_POLICY_TOVPN_NEXTHOP_SET (1 << 2) | |
92a9e6f2 | 227 | #define BGP_VPN_POLICY_TOVPN_SID_AUTO (1 << 3) |
12a844a5 | 228 | |
1d4e8b0d DS |
229 | /* |
230 | * If we are importing another vrf into us keep a list of | |
231 | * vrf names that are being imported into us. | |
232 | */ | |
12a844a5 | 233 | struct list *import_vrf; |
1d4e8b0d DS |
234 | |
235 | /* | |
236 | * if we are being exported to another vrf keep a list of | |
237 | * vrf names that we are being exported to. | |
238 | */ | |
12a844a5 | 239 | struct list *export_vrf; |
92a9e6f2 HS |
240 | |
241 | /* | |
242 | * Segment-Routing SRv6 Mode | |
243 | */ | |
244 | uint32_t tovpn_sid_index; /* unset => set to 0 */ | |
245 | struct in6_addr *tovpn_sid; | |
bee2e7d0 | 246 | struct srv6_locator_chunk *tovpn_sid_locator; |
a45cd34e | 247 | uint32_t tovpn_sid_transpose_label; |
92a9e6f2 | 248 | struct in6_addr *tovpn_zebra_vrf_sid_last_sent; |
e70e9f8e PZ |
249 | }; |
250 | ||
ad4cbda1 | 251 | /* |
252 | * Type of 'struct bgp'. | |
253 | * - Default: The default instance | |
254 | * - VRF: A specific (non-default) VRF | |
255 | * - View: An instance used for route exchange | |
256 | * The "default" instance is treated separately to simplify the code. Note | |
257 | * that if deployed in a Multi-VRF environment, it may not exist. | |
258 | */ | |
d62a17ae | 259 | enum bgp_instance_type { |
260 | BGP_INSTANCE_TYPE_DEFAULT, | |
261 | BGP_INSTANCE_TYPE_VRF, | |
262 | BGP_INSTANCE_TYPE_VIEW | |
ad4cbda1 | 263 | }; |
264 | ||
36235319 | 265 | #define BGP_SEND_EOR(bgp, afi, safi) \ |
892fedb6 | 266 | (!CHECK_FLAG(bgp->flags, BGP_FLAG_GR_DISABLE_EOR) \ |
36235319 QY |
267 | && ((bgp->gr_info[afi][safi].t_select_deferral == NULL) \ |
268 | || (bgp->gr_info[afi][safi].eor_required \ | |
269 | == bgp->gr_info[afi][safi].eor_received))) | |
b0965c44 | 270 | |
271 | /* BGP GR Global ds */ | |
272 | ||
2ba1fe69 | 273 | #define BGP_GLOBAL_GR_MODE 4 |
274 | #define BGP_GLOBAL_GR_EVENT_CMD 4 | |
b0965c44 | 275 | |
b0965c44 | 276 | /* Graceful restart selection deferral timer info */ |
277 | struct graceful_restart_info { | |
278 | /* Count of EOR message expected */ | |
279 | uint32_t eor_required; | |
280 | /* Count of EOR received */ | |
281 | uint32_t eor_received; | |
282 | /* Deferral Timer */ | |
283 | struct thread *t_select_deferral; | |
26742171 DS |
284 | /* Routes Deferred */ |
285 | uint32_t gr_deferred; | |
b0965c44 | 286 | /* Best route select */ |
287 | struct thread *t_route_select; | |
2d3dd828 | 288 | /* AFI, SAFI enabled */ |
289 | bool af_enabled[AFI_MAX][SAFI_MAX]; | |
290 | /* Route update completed */ | |
291 | bool route_sync[AFI_MAX][SAFI_MAX]; | |
b0965c44 | 292 | }; |
293 | ||
b0965c44 | 294 | enum global_mode { |
295 | GLOBAL_HELPER = 0, /* This is the default mode */ | |
296 | GLOBAL_GR, | |
297 | GLOBAL_DISABLE, | |
298 | GLOBAL_INVALID | |
299 | }; | |
300 | ||
301 | enum global_gr_command { | |
302 | GLOBAL_GR_CMD = 0, | |
303 | NO_GLOBAL_GR_CMD, | |
304 | GLOBAL_DISABLE_CMD, | |
305 | NO_GLOBAL_DISABLE_CMD | |
306 | }; | |
307 | ||
308 | #define BGP_GR_SUCCESS 0 | |
309 | #define BGP_GR_FAILURE 1 | |
310 | ||
f7e1c681 | 311 | /* Handling of BGP link bandwidth (LB) on receiver - whether and how to |
312 | * do weighted ECMP. Note: This applies after multipath computation. | |
313 | */ | |
314 | enum bgp_link_bw_handling { | |
315 | /* Do ECMP if some paths don't have LB - default */ | |
316 | BGP_LINK_BW_ECMP, | |
317 | /* Completely ignore LB, just do regular ECMP */ | |
318 | BGP_LINK_BW_IGNORE_BW, | |
319 | /* Skip paths without LB, do wECMP on others */ | |
320 | BGP_LINK_BW_SKIP_MISSING, | |
321 | /* Do wECMP with default weight for paths not having LB */ | |
322 | BGP_LINK_BW_DEFWT_4_MISSING | |
323 | }; | |
324 | ||
c589d847 AK |
325 | RB_HEAD(bgp_es_vrf_rb_head, bgp_evpn_es_vrf); |
326 | RB_PROTOTYPE(bgp_es_vrf_rb_head, bgp_evpn_es_vrf, rb_node, bgp_es_vrf_rb_cmp); | |
327 | ||
0d020cd6 PR |
328 | struct bgp_snmp_stats { |
329 | /* SNMP variables for mplsL3Vpn*/ | |
330 | time_t creation_time; | |
331 | time_t modify_time; | |
332 | bool active; | |
7fd28dd2 PR |
333 | uint32_t routes_added; |
334 | uint32_t routes_deleted; | |
0d020cd6 PR |
335 | }; |
336 | ||
92a9e6f2 HS |
337 | struct bgp_srv6_function { |
338 | struct in6_addr sid; | |
339 | char locator_name[SRV6_LOCNAME_SIZE]; | |
340 | }; | |
341 | ||
718e3744 | 342 | /* BGP instance structure. */ |
d62a17ae | 343 | struct bgp { |
344 | /* AS number of this BGP instance. */ | |
345 | as_t as; | |
346 | ||
347 | /* Name of this BGP instance. */ | |
348 | char *name; | |
3572fb26 | 349 | char *name_pretty; /* printable "VRF|VIEW name|default" */ |
d62a17ae | 350 | |
351 | /* Type of instance and VRF id. */ | |
352 | enum bgp_instance_type inst_type; | |
353 | vrf_id_t vrf_id; | |
354 | ||
355 | /* Reference count to allow peer_delete to finish after bgp_delete */ | |
356 | int lock; | |
357 | ||
358 | /* Self peer. */ | |
359 | struct peer *peer_self; | |
360 | ||
361 | /* BGP peer. */ | |
362 | struct list *peer; | |
363 | struct hash *peerhash; | |
364 | ||
365 | /* BGP peer group. */ | |
366 | struct list *group; | |
367 | ||
368 | /* The maximum number of BGP dynamic neighbors that can be created */ | |
369 | int dynamic_neighbors_limit; | |
370 | ||
371 | /* The current number of BGP dynamic neighbors */ | |
372 | int dynamic_neighbors_count; | |
373 | ||
374 | struct hash *update_groups[BGP_AF_MAX]; | |
375 | ||
376 | /* | |
377 | * Global statistics for update groups. | |
378 | */ | |
379 | struct { | |
d7c0a89a QY |
380 | uint32_t join_events; |
381 | uint32_t prune_events; | |
382 | uint32_t merge_events; | |
383 | uint32_t split_events; | |
384 | uint32_t updgrp_switch_events; | |
385 | uint32_t peer_refreshes_combined; | |
386 | uint32_t adj_count; | |
387 | uint32_t merge_checks_triggered; | |
388 | ||
389 | uint32_t updgrps_created; | |
390 | uint32_t updgrps_deleted; | |
391 | uint32_t subgrps_created; | |
392 | uint32_t subgrps_deleted; | |
d62a17ae | 393 | } update_group_stats; |
394 | ||
0d020cd6 PR |
395 | struct bgp_snmp_stats *snmp_stats; |
396 | ||
d62a17ae | 397 | /* BGP configuration. */ |
d7c0a89a | 398 | uint16_t config; |
c2d58d6d | 399 | #define BGP_CONFIG_CLUSTER_ID (1 << 0) |
400 | #define BGP_CONFIG_CONFEDERATION (1 << 1) | |
718e3744 | 401 | |
d62a17ae | 402 | /* BGP router identifier. */ |
403 | struct in_addr router_id; | |
404 | struct in_addr router_id_static; | |
405 | struct in_addr router_id_zebra; | |
718e3744 | 406 | |
d62a17ae | 407 | /* BGP route reflector cluster ID. */ |
408 | struct in_addr cluster_id; | |
718e3744 | 409 | |
d62a17ae | 410 | /* BGP confederation information. */ |
411 | as_t confed_id; | |
412 | as_t *confed_peers; | |
413 | int confed_peers_cnt; | |
718e3744 | 414 | |
d62a17ae | 415 | struct thread |
416 | *t_startup; /* start-up timer on only once at the beginning */ | |
abc920f8 | 417 | |
d7c0a89a | 418 | uint32_t v_maxmed_onstartup; /* Duration of max-med on start-up */ |
abc920f8 | 419 | #define BGP_MAXMED_ONSTARTUP_UNCONFIGURED 0 /* 0 means off, its the default */ |
d7c0a89a QY |
420 | uint32_t maxmed_onstartup_value; /* Max-med value when active on |
421 | start-up */ | |
d62a17ae | 422 | struct thread |
423 | *t_maxmed_onstartup; /* non-null when max-med onstartup is on */ | |
d7c0a89a | 424 | uint8_t maxmed_onstartup_over; /* Flag to make it effective only once */ |
d62a17ae | 425 | |
ff8a8a7a CS |
426 | bool v_maxmed_admin; /* true/false if max-med administrative is on/off |
427 | */ | |
428 | #define BGP_MAXMED_ADMIN_UNCONFIGURED false /* Off by default */ | |
d7c0a89a QY |
429 | uint32_t maxmed_admin_value; /* Max-med value when administrative in on |
430 | */ | |
abc920f8 DS |
431 | #define BGP_MAXMED_VALUE_DEFAULT 4294967294 /* Maximum by default */ |
432 | ||
d7c0a89a QY |
433 | uint8_t maxmed_active; /* 1/0 if max-med is active or not */ |
434 | uint32_t maxmed_value; /* Max-med value when its active */ | |
d62a17ae | 435 | |
436 | /* BGP update delay on startup */ | |
437 | struct thread *t_update_delay; | |
438 | struct thread *t_establish_wait; | |
7f1f9314 DS |
439 | struct thread *t_revalidate[AFI_MAX][SAFI_MAX]; |
440 | ||
d7c0a89a QY |
441 | uint8_t update_delay_over; |
442 | uint8_t main_zebra_update_hold; | |
443 | uint8_t main_peers_update_hold; | |
444 | uint16_t v_update_delay; | |
445 | uint16_t v_establish_wait; | |
d62a17ae | 446 | char update_delay_begin_time[64]; |
447 | char update_delay_end_time[64]; | |
448 | char update_delay_zebra_resume_time[64]; | |
449 | char update_delay_peers_resume_time[64]; | |
d7c0a89a QY |
450 | uint32_t established; |
451 | uint32_t restarted_peers; | |
452 | uint32_t implicit_eors; | |
453 | uint32_t explicit_eors; | |
f188f2c4 DS |
454 | #define BGP_UPDATE_DELAY_DEF 0 |
455 | #define BGP_UPDATE_DELAY_MIN 0 | |
456 | #define BGP_UPDATE_DELAY_MAX 3600 | |
457 | ||
b1875e65 | 458 | /* Reference bandwidth for BGP link-bandwidth. Used when |
459 | * the LB value has to be computed based on some other | |
460 | * factor (e.g., number of multipaths for the prefix) | |
461 | * Value is in Mbps | |
462 | */ | |
463 | uint32_t lb_ref_bw; | |
464 | #define BGP_LINK_BW_REF_BW 1 | |
465 | ||
d62a17ae | 466 | /* BGP flags. */ |
fd6b4f06 | 467 | uint64_t flags; |
97a52c82 DA |
468 | #define BGP_FLAG_ALWAYS_COMPARE_MED (1ULL << 0) |
469 | #define BGP_FLAG_DETERMINISTIC_MED (1ULL << 1) | |
470 | #define BGP_FLAG_MED_MISSING_AS_WORST (1ULL << 2) | |
471 | #define BGP_FLAG_MED_CONFED (1ULL << 3) | |
472 | #define BGP_FLAG_NO_CLIENT_TO_CLIENT (1ULL << 4) | |
473 | #define BGP_FLAG_COMPARE_ROUTER_ID (1ULL << 5) | |
474 | #define BGP_FLAG_ASPATH_IGNORE (1ULL << 6) | |
475 | #define BGP_FLAG_IMPORT_CHECK (1ULL << 7) | |
476 | #define BGP_FLAG_NO_FAST_EXT_FAILOVER (1ULL << 8) | |
477 | #define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1ULL << 9) | |
b0965c44 | 478 | |
479 | /* This flag is set when we have full BGP Graceful-Restart mode enable */ | |
97a52c82 DA |
480 | #define BGP_FLAG_GRACEFUL_RESTART (1ULL << 10) |
481 | ||
482 | #define BGP_FLAG_ASPATH_CONFED (1ULL << 11) | |
483 | #define BGP_FLAG_ASPATH_MULTIPATH_RELAX (1ULL << 12) | |
484 | #define BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY (1ULL << 13) | |
485 | #define BGP_FLAG_DISABLE_NH_CONNECTED_CHK (1ULL << 14) | |
486 | #define BGP_FLAG_MULTIPATH_RELAX_AS_SET (1ULL << 15) | |
487 | #define BGP_FLAG_FORCE_STATIC_PROCESS (1ULL << 16) | |
488 | #define BGP_FLAG_SHOW_HOSTNAME (1ULL << 17) | |
489 | #define BGP_FLAG_GR_PRESERVE_FWD (1ULL << 18) | |
490 | #define BGP_FLAG_GRACEFUL_SHUTDOWN (1ULL << 19) | |
491 | #define BGP_FLAG_DELETE_IN_PROGRESS (1ULL << 20) | |
492 | #define BGP_FLAG_SELECT_DEFER_DISABLE (1ULL << 21) | |
493 | #define BGP_FLAG_GR_DISABLE_EOR (1ULL << 22) | |
494 | #define BGP_FLAG_EBGP_REQUIRES_POLICY (1ULL << 23) | |
495 | #define BGP_FLAG_SHOW_NEXTHOP_HOSTNAME (1ULL << 24) | |
b0965c44 | 496 | |
9cf59432 | 497 | /* This flag is set if the instance is in administrative shutdown */ |
97a52c82 DA |
498 | #define BGP_FLAG_SHUTDOWN (1ULL << 25) |
499 | #define BGP_FLAG_SUPPRESS_FIB_PENDING (1ULL << 26) | |
500 | #define BGP_FLAG_SUPPRESS_DUPLICATES (1ULL << 27) | |
501 | #define BGP_FLAG_PEERTYPE_MULTIPATH_RELAX (1ULL << 29) | |
f2ca5c5b | 502 | /* Indicate Graceful Restart support for BGP NOTIFICATION messages */ |
97a52c82 | 503 | #define BGP_FLAG_GRACEFUL_NOTIFICATION (1ULL << 30) |
1ae314be | 504 | /* Send Hard Reset CEASE Notification for 'Administrative Reset' */ |
97a52c82 DA |
505 | #define BGP_FLAG_HARD_ADMIN_RESET (1ULL << 31) |
506 | /* Evaluate the AIGP attribute during the best path selection process */ | |
507 | #define BGP_FLAG_COMPARE_AIGP (1ULL << 32) | |
b16bcbba TA |
508 | |
509 | /* BGP default address-families. | |
510 | * New peers inherit enabled afi/safis from bgp instance. | |
511 | */ | |
512 | uint16_t default_af[AFI_MAX][SAFI_MAX]; | |
9cf59432 | 513 | |
2ba1fe69 | 514 | enum global_mode GLOBAL_GR_FSM[BGP_GLOBAL_GR_MODE] |
36235319 | 515 | [BGP_GLOBAL_GR_EVENT_CMD]; |
b0965c44 | 516 | enum global_mode global_gr_present_state; |
517 | ||
2d3dd828 | 518 | /* This variable stores the current Graceful Restart state of Zebra |
519 | * - ZEBRA_GR_ENABLE / ZEBRA_GR_DISABLE | |
520 | */ | |
521 | enum zebra_gr_mode present_zebra_gr_state; | |
522 | ||
d62a17ae | 523 | /* BGP Per AF flags */ |
d7c0a89a | 524 | uint16_t af_flags[AFI_MAX][SAFI_MAX]; |
f4882003 | 525 | #define BGP_CONFIG_DAMPENING (1 << 0) |
2c29b18a | 526 | /* l2vpn evpn flags - 1 << 0 is used for DAMPENNG */ |
d4a88de3 AD |
527 | #define BGP_L2VPN_EVPN_ADV_IPV4_UNICAST (1 << 1) |
528 | #define BGP_L2VPN_EVPN_ADV_IPV4_UNICAST_GW_IP (1 << 2) | |
529 | #define BGP_L2VPN_EVPN_ADV_IPV6_UNICAST (1 << 3) | |
530 | #define BGP_L2VPN_EVPN_ADV_IPV6_UNICAST_GW_IP (1 << 4) | |
531 | #define BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV4 (1 << 5) | |
532 | #define BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV6 (1 << 6) | |
f4882003 | 533 | /* import/export between address families */ |
d4a88de3 AD |
534 | #define BGP_CONFIG_VRF_TO_MPLSVPN_EXPORT (1 << 7) |
535 | #define BGP_CONFIG_MPLSVPN_TO_VRF_IMPORT (1 << 8) | |
f4882003 | 536 | /* vrf-route leaking flags */ |
d4a88de3 AD |
537 | #define BGP_CONFIG_VRF_TO_VRF_IMPORT (1 << 9) |
538 | #define BGP_CONFIG_VRF_TO_VRF_EXPORT (1 << 10) | |
a486300b PG |
539 | /* vpnvx retain flag */ |
540 | #define BGP_VPNVX_RETAIN_ROUTE_TARGET_ALL (1 << 11) | |
154faa50 | 541 | |
210ec2a0 AS |
542 | /* BGP per AF peer count */ |
543 | uint32_t af_peer_count[AFI_MAX][SAFI_MAX]; | |
544 | ||
f663c581 RW |
545 | /* Tree for next-hop lookup cache. */ |
546 | struct bgp_nexthop_cache_head nexthop_cache_table[AFI_MAX]; | |
6aeb9e78 | 547 | |
f663c581 RW |
548 | /* Tree for import-check */ |
549 | struct bgp_nexthop_cache_head import_check_table[AFI_MAX]; | |
6aeb9e78 | 550 | |
d62a17ae | 551 | struct bgp_table *connected_table[AFI_MAX]; |
6aeb9e78 | 552 | |
d62a17ae | 553 | struct hash *address_hash; |
6aeb9e78 | 554 | |
db0e1937 MK |
555 | /* DB for all local tunnel-ips - used mainly for martian checks |
556 | Currently it only has all VxLan tunnel IPs*/ | |
557 | struct hash *tip_hash; | |
558 | ||
d62a17ae | 559 | /* Static route configuration. */ |
560 | struct bgp_table *route[AFI_MAX][SAFI_MAX]; | |
718e3744 | 561 | |
d62a17ae | 562 | /* Aggregate address configuration. */ |
563 | struct bgp_table *aggregate[AFI_MAX][SAFI_MAX]; | |
718e3744 | 564 | |
d62a17ae | 565 | /* BGP routing information base. */ |
566 | struct bgp_table *rib[AFI_MAX][SAFI_MAX]; | |
718e3744 | 567 | |
d62a17ae | 568 | /* BGP table route-map. */ |
569 | struct bgp_rmap table_map[AFI_MAX][SAFI_MAX]; | |
73ac8160 | 570 | |
d62a17ae | 571 | /* BGP redistribute configuration. */ |
572 | struct list *redist[AFI_MAX][ZEBRA_ROUTE_MAX]; | |
718e3744 | 573 | |
318cac96 | 574 | /* Allocate MPLS labels */ |
d7c0a89a | 575 | uint8_t allocate_mpls_labels[AFI_MAX][SAFI_MAX]; |
318cac96 | 576 | |
f3d32faa PG |
577 | /* Allocate hash entries to store policy routing information |
578 | * The hash are used to host pbr rules somewhere. | |
579 | * Actually, pbr will only be used by flowspec | |
580 | * those hash elements will have relationship together as | |
581 | * illustrated in below diagram: | |
582 | * | |
583 | * pbr_action a <----- pbr_match i <--- pbr_match_entry 1..n | |
584 | * <----- pbr_match j <--- pbr_match_entry 1..m | |
27e376d4 | 585 | * <----- pbr_rule k |
f3d32faa PG |
586 | * |
587 | * - here in BGP structure, the list of match and actions will | |
588 | * stand for the list of ipset sets, and table_ids in the kernel | |
589 | * - the arrow above between pbr_match and pbr_action indicate | |
590 | * that a backpointer permits match to find the action | |
591 | * - the arrow betwen match_entry and match is a hash list | |
592 | * contained in match, that lists the whole set of entries | |
593 | */ | |
594 | struct hash *pbr_match_hash; | |
27e376d4 | 595 | struct hash *pbr_rule_hash; |
f3d32faa PG |
596 | struct hash *pbr_action_hash; |
597 | ||
d62a17ae | 598 | /* timer to re-evaluate neighbor default-originate route-maps */ |
599 | struct thread *t_rmap_def_originate_eval; | |
0de4848d DS |
600 | #define RMAP_DEFAULT_ORIGINATE_EVAL_TIMER 5 |
601 | ||
d62a17ae | 602 | /* BGP distance configuration. */ |
d7c0a89a QY |
603 | uint8_t distance_ebgp[AFI_MAX][SAFI_MAX]; |
604 | uint8_t distance_ibgp[AFI_MAX][SAFI_MAX]; | |
605 | uint8_t distance_local[AFI_MAX][SAFI_MAX]; | |
d62a17ae | 606 | |
607 | /* BGP default local-preference. */ | |
d7c0a89a | 608 | uint32_t default_local_pref; |
d62a17ae | 609 | |
610 | /* BGP default subgroup pkt queue max */ | |
d7c0a89a | 611 | uint32_t default_subgroup_pkt_queue_max; |
d62a17ae | 612 | |
613 | /* BGP default timer. */ | |
d7c0a89a QY |
614 | uint32_t default_holdtime; |
615 | uint32_t default_keepalive; | |
5d5393b9 | 616 | uint32_t default_connect_retry; |
6c537a18 | 617 | uint32_t default_delayopen; |
d62a17ae | 618 | |
b042667a TI |
619 | /* BGP minimum holdtime. */ |
620 | uint16_t default_min_holdtime; | |
621 | ||
d62a17ae | 622 | /* BGP graceful restart */ |
d7c0a89a QY |
623 | uint32_t restart_time; |
624 | uint32_t stalepath_time; | |
b0965c44 | 625 | uint32_t select_defer_time; |
626 | struct graceful_restart_info gr_info[AFI_MAX][SAFI_MAX]; | |
2d3dd828 | 627 | uint32_t rib_stale_time; |
628 | ||
8606be87 DA |
629 | /* BGP Long-lived Graceful Restart */ |
630 | uint32_t llgr_stale_time; | |
631 | ||
cfd47646 | 632 | #define BGP_ROUTE_SELECT_DELAY 1 |
633 | #define BGP_MAX_BEST_ROUTE_SELECT 10000 | |
d62a17ae | 634 | /* Maximum-paths configuration */ |
635 | struct bgp_maxpaths_cfg { | |
d7c0a89a QY |
636 | uint16_t maxpaths_ebgp; |
637 | uint16_t maxpaths_ibgp; | |
aa53c036 | 638 | bool same_clusterlen; |
d62a17ae | 639 | } maxpaths[AFI_MAX][SAFI_MAX]; |
cb1faec9 | 640 | |
555e09d4 QY |
641 | _Atomic uint32_t wpkt_quanta; // max # packets to write per i/o cycle |
642 | _Atomic uint32_t rpkt_quanta; // max # packets to read per i/o cycle | |
643 | ||
37a333fe QY |
644 | /* Automatic coalesce adjust on/off */ |
645 | bool heuristic_coalesce; | |
14b8641a QY |
646 | /* Actual coalesce time */ |
647 | uint32_t coalesce_time; | |
adbac85e | 648 | |
f26845f9 QY |
649 | /* Auto-shutdown new peers */ |
650 | bool autoshutdown; | |
651 | ||
dcc68b5e | 652 | struct bgp_addpath_bgp_data tx_addpath; |
65efcfce | 653 | |
1e20238a | 654 | #ifdef ENABLE_BGP_VNC |
d62a17ae | 655 | struct rfapi_cfg *rfapi_cfg; |
656 | struct rfapi *rfapi; | |
65efcfce | 657 | #endif |
19df7279 | 658 | |
d62a17ae | 659 | /* EVPN related information */ |
14c1a7bf | 660 | |
d62a17ae | 661 | /* EVI hash table */ |
662 | struct hash *vnihash; | |
14c1a7bf | 663 | |
021b6596 AD |
664 | /* |
665 | * VNI hash table based on SVI ifindex as its key. | |
666 | * We use SVI ifindex as key to lookup a VNI table for gateway IP | |
667 | * overlay index recursive lookup. | |
668 | * For this purpose, a hashtable is added which optimizes this lookup. | |
669 | */ | |
670 | struct hash *vni_svi_hash; | |
671 | ||
1a98c087 MK |
672 | /* EVPN enable - advertise gateway macip routes */ |
673 | int advertise_gw_macip; | |
674 | ||
d62a17ae | 675 | /* EVPN enable - advertise local VNIs and their MACs etc. */ |
676 | int advertise_all_vni; | |
14c1a7bf | 677 | |
fb29348a DA |
678 | /* draft-ietf-idr-deprecate-as-set-confed-set |
679 | * Reject aspaths with AS_SET and/or AS_CONFED_SET. | |
680 | */ | |
681 | bool reject_as_sets; | |
fb29348a | 682 | |
85c8d83b CS |
683 | struct bgp_evpn_info *evpn_info; |
684 | ||
bf1061d8 VB |
685 | /* EVPN - use RFC 8365 to auto-derive RT */ |
686 | int advertise_autort_rfc8365; | |
687 | ||
fd069644 DS |
688 | /* |
689 | * Flooding mechanism for BUM packets for VxLAN-EVPN. | |
690 | */ | |
691 | enum vxlan_flood_control vxlan_flood_ctrl; | |
692 | ||
d62a17ae | 693 | /* Hash table of Import RTs to EVIs */ |
694 | struct hash *import_rt_hash; | |
14c1a7bf | 695 | |
10ebe1ab MK |
696 | /* Hash table of VRF import RTs to VRFs */ |
697 | struct hash *vrf_import_rt_hash; | |
698 | ||
fe1dc5a3 MK |
699 | /* L3-VNI corresponding to this vrf */ |
700 | vni_t l3vni; | |
701 | ||
702 | /* router-mac to be used in mac-ip routes for this vrf */ | |
703 | struct ethaddr rmac; | |
704 | ||
b67a60d2 | 705 | /* originator ip - to be used as NH for type-5 routes */ |
706 | struct in_addr originator_ip; | |
707 | ||
0483af6e | 708 | /* SVI associated with the L3-VNI corresponding to this vrf */ |
709 | ifindex_t l3vni_svi_ifindex; | |
710 | ||
c589d847 AK |
711 | /* RB tree of ES-VRFs */ |
712 | struct bgp_es_vrf_rb_head es_vrf_rb_tree; | |
713 | ||
090efa2f AK |
714 | /* Hash table of EVPN nexthops maintained per-tenant-VRF */ |
715 | struct hash *evpn_nh_table; | |
716 | ||
dc6cef73 AD |
717 | /* |
718 | * Flag resolve_overlay_index is used for recursive resolution | |
719 | * procedures for EVPN type-5 route's gateway IP overlay index. | |
720 | * When this flag is set, we build remote-ip-hash for | |
721 | * all L2VNIs and resolve overlay index nexthops using this hash. | |
722 | * Overlay index nexthops remain unresolved if this flag is not set. | |
723 | */ | |
724 | bool resolve_overlay_index; | |
725 | ||
fe1dc5a3 MK |
726 | /* vrf flags */ |
727 | uint32_t vrf_flags; | |
676f83b9 | 728 | #define BGP_VRF_AUTO (1 << 0) |
154faa50 MK |
729 | #define BGP_VRF_IMPORT_RT_CFGD (1 << 1) |
730 | #define BGP_VRF_EXPORT_RT_CFGD (1 << 2) | |
58d8948c SW |
731 | #define BGP_VRF_IMPORT_AUTO_RT_CFGD (1 << 3) /* retain auto when cfgd */ |
732 | #define BGP_VRF_EXPORT_AUTO_RT_CFGD (1 << 4) /* retain auto when cfgd */ | |
733 | #define BGP_VRF_RD_CFGD (1 << 5) | |
734 | #define BGP_VRF_L3VNI_PREFIX_ROUTES_ONLY (1 << 6) | |
527588aa CS |
735 | /* per-VRF toVPN SID */ |
736 | #define BGP_VRF_TOVPN_SID_AUTO (1 << 7) | |
23e386ac | 737 | |
676f83b9 | 738 | /* unique ID for auto derivation of RD for this vrf */ |
739 | uint16_t vrf_rd_id; | |
740 | ||
92708db6 | 741 | /* Automatically derived RD for this VRF */ |
742 | struct prefix_rd vrf_prd_auto; | |
743 | ||
676f83b9 | 744 | /* RD for this VRF */ |
745 | struct prefix_rd vrf_prd; | |
c581d8b0 MK |
746 | |
747 | /* import rt list for the vrf instance */ | |
748 | struct list *vrf_import_rtl; | |
749 | ||
750 | /* export rt list for the vrf instance */ | |
751 | struct list *vrf_export_rtl; | |
fe1dc5a3 | 752 | |
6a8657d0 MK |
753 | /* list of corresponding l2vnis (struct bgpevpn) */ |
754 | struct list *l2vnis; | |
755 | ||
53c84f78 MK |
756 | /* route map for advertise ipv4/ipv6 unicast (type-5 routes) */ |
757 | struct bgp_rmap adv_cmd_rmap[AFI_MAX][SAFI_MAX]; | |
758 | ||
e70e9f8e | 759 | struct vpn_policy vpn_policy[AFI_MAX]; |
ddb5b488 | 760 | |
4762c213 PG |
761 | struct bgp_pbr_config *bgp_pbr_cfg; |
762 | ||
36dc7588 | 763 | /* Count of peers in established state */ |
764 | uint32_t established_peers; | |
765 | ||
f7e1c681 | 766 | /* Weighted ECMP related config. */ |
767 | enum bgp_link_bw_handling lb_handling; | |
768 | ||
b6c386bb DS |
769 | /* Process Queue for handling routes */ |
770 | struct work_queue *process_queue; | |
e73c112e | 771 | |
f852eb98 PG |
772 | bool fast_convergence; |
773 | ||
7f7940e6 | 774 | /* BGP Conditional advertisement */ |
389e4f92 | 775 | uint32_t condition_check_period; |
c385f82a | 776 | uint32_t condition_filter_count; |
7f7940e6 | 777 | struct thread *t_condition_check; |
b6c386bb | 778 | |
92a9e6f2 HS |
779 | /* BGP VPN SRv6 backend */ |
780 | bool srv6_enabled; | |
781 | char srv6_locator_name[SRV6_LOCNAME_SIZE]; | |
782 | struct list *srv6_locator_chunks; | |
783 | struct list *srv6_functions; | |
527588aa CS |
784 | uint32_t tovpn_sid_index; /* unset => set to 0 */ |
785 | struct in6_addr *tovpn_sid; | |
786 | struct srv6_locator_chunk *tovpn_sid_locator; | |
787 | uint32_t tovpn_sid_transpose_label; | |
788 | struct in6_addr *tovpn_zebra_vrf_sid_last_sent; | |
789 | ||
d1adb448 PG |
790 | /* TCP keepalive parameters for BGP connection */ |
791 | uint16_t tcp_keepalive_idle; | |
792 | uint16_t tcp_keepalive_intvl; | |
793 | uint16_t tcp_keepalive_probes; | |
92a9e6f2 | 794 | |
b17826b7 DS |
795 | struct timeval ebgprequirespolicywarning; |
796 | #define FIFTEENMINUTE2USEC (int64_t)15 * 60 * 1000000 | |
797 | ||
8666265e DS |
798 | bool allow_martian; |
799 | ||
96244aca | 800 | QOBJ_FIELDS; |
718e3744 | 801 | }; |
96244aca | 802 | DECLARE_QOBJ_TYPE(bgp); |
718e3744 | 803 | |
4cd690ae PG |
804 | struct bgp_interface { |
805 | #define BGP_INTERFACE_MPLS_BGP_FORWARDING (1 << 0) | |
806 | uint32_t flags; | |
807 | }; | |
808 | ||
8451921b | 809 | DECLARE_HOOK(bgp_inst_delete, (struct bgp *bgp), (bgp)); |
2b9bcf30 DL |
810 | DECLARE_HOOK(bgp_inst_config_write, |
811 | (struct bgp *bgp, struct vty *vty), | |
8451921b | 812 | (bgp, vty)); |
aa24a36a | 813 | DECLARE_HOOK(bgp_config_end, (struct bgp *bgp), (bgp)); |
2b9bcf30 | 814 | |
36235319 QY |
815 | /* Thread callback information */ |
816 | struct afi_safi_info { | |
817 | afi_t afi; | |
818 | safi_t safi; | |
819 | struct bgp *bgp; | |
820 | }; | |
cfd47646 | 821 | |
2a3d5731 | 822 | #define BGP_ROUTE_ADV_HOLD(bgp) (bgp->main_peers_update_hold) |
d889623f | 823 | |
d62a17ae | 824 | #define IS_BGP_INST_KNOWN_TO_ZEBRA(bgp) \ |
825 | (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT \ | |
826 | || (bgp->inst_type == BGP_INSTANCE_TYPE_VRF \ | |
827 | && bgp->vrf_id != VRF_UNKNOWN)) | |
ad4cbda1 | 828 | |
36235319 | 829 | #define BGP_SELECT_DEFER_DISABLE(bgp) \ |
892fedb6 | 830 | (CHECK_FLAG(bgp->flags, BGP_FLAG_SELECT_DEFER_DISABLE)) |
cfd47646 | 831 | |
9acb67cb DS |
832 | #define BGP_SUPPRESS_FIB_ENABLED(bgp) \ |
833 | (CHECK_FLAG(bgp->flags, BGP_FLAG_SUPPRESS_FIB_PENDING) \ | |
834 | || bm->wait_for_fib) | |
c208c586 | 835 | |
718e3744 | 836 | /* BGP peer-group support. */ |
d62a17ae | 837 | struct peer_group { |
838 | /* Name of the peer-group. */ | |
839 | char *name; | |
718e3744 | 840 | |
d62a17ae | 841 | /* Pointer to BGP. */ |
842 | struct bgp *bgp; | |
718e3744 | 843 | |
d62a17ae | 844 | /* Peer-group client list. */ |
845 | struct list *peer; | |
f14e6fdb | 846 | |
d62a17ae | 847 | /** Dynamic neighbor listening ranges */ |
848 | struct list *listen_range[AFI_MAX]; | |
849 | ||
850 | /* Peer-group config */ | |
851 | struct peer *conf; | |
718e3744 | 852 | }; |
853 | ||
854 | /* BGP Notify message format. */ | |
d62a17ae | 855 | struct bgp_notify { |
d7c0a89a QY |
856 | uint8_t code; |
857 | uint8_t subcode; | |
d62a17ae | 858 | char *data; |
859 | bgp_size_t length; | |
d7c0a89a | 860 | uint8_t *raw_data; |
eea685b6 | 861 | bool hard_reset; |
718e3744 | 862 | }; |
863 | ||
864 | /* Next hop self address. */ | |
d62a17ae | 865 | struct bgp_nexthop { |
866 | struct interface *ifp; | |
867 | struct in_addr v4; | |
868 | struct in6_addr v6_global; | |
869 | struct in6_addr v6_local; | |
718e3744 | 870 | }; |
871 | ||
a82478b9 DS |
872 | /* BGP addpath values */ |
873 | #define BGP_ADDPATH_RX 1 | |
874 | #define BGP_ADDPATH_TX 2 | |
875 | #define BGP_ADDPATH_ID_LEN 4 | |
876 | ||
adbac85e DW |
877 | #define BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE 1 |
878 | ||
3f54c705 | 879 | /* Route map direction */ |
2a3d5731 DW |
880 | #define RMAP_IN 0 |
881 | #define RMAP_OUT 1 | |
882 | #define RMAP_MAX 2 | |
fee0f4c6 | 883 | |
e2521429 DA |
884 | #define BGP_DEFAULT_TTL 1 |
885 | #define BGP_GTSM_HOPS_DISABLED 0 | |
886 | #define BGP_GTSM_HOPS_CONNECTED 1 | |
a0903cd2 | 887 | |
7f7940e6 | 888 | /* Advertise map */ |
cf2ad4d8 MK |
889 | #define CONDITION_NON_EXIST false |
890 | #define CONDITION_EXIST true | |
c385f82a | 891 | |
ecf2b628 | 892 | enum update_type { UPDATE_TYPE_WITHDRAW, UPDATE_TYPE_ADVERTISE }; |
7f7940e6 | 893 | |
65efcfce LB |
894 | #include "filter.h" |
895 | ||
718e3744 | 896 | /* BGP filter structure. */ |
d62a17ae | 897 | struct bgp_filter { |
898 | /* Distribute-list. */ | |
899 | struct { | |
900 | char *name; | |
901 | struct access_list *alist; | |
902 | } dlist[FILTER_MAX]; | |
903 | ||
904 | /* Prefix-list. */ | |
905 | struct { | |
906 | char *name; | |
907 | struct prefix_list *plist; | |
908 | } plist[FILTER_MAX]; | |
909 | ||
910 | /* Filter-list. */ | |
911 | struct { | |
912 | char *name; | |
913 | struct as_list *aslist; | |
914 | } aslist[FILTER_MAX]; | |
915 | ||
916 | /* Route-map. */ | |
917 | struct { | |
918 | char *name; | |
919 | struct route_map *map; | |
920 | } map[RMAP_MAX]; | |
921 | ||
922 | /* Unsuppress-map. */ | |
923 | struct { | |
924 | char *name; | |
925 | struct route_map *map; | |
926 | } usmap; | |
7f7940e6 MK |
927 | |
928 | /* Advertise-map */ | |
929 | struct { | |
930 | char *aname; | |
931 | struct route_map *amap; | |
932 | ||
933 | bool condition; | |
934 | ||
935 | char *cname; | |
936 | struct route_map *cmap; | |
937 | ||
fa36596c | 938 | enum update_type update_type; |
7f7940e6 | 939 | } advmap; |
718e3744 | 940 | }; |
941 | ||
6d85b15b JBD |
942 | /* IBGP/EBGP identifier. We also have a CONFED peer, which is to say, |
943 | a peer who's AS is part of our Confederation. */ | |
3061acc2 | 944 | enum bgp_peer_sort { |
faa16034 DS |
945 | BGP_PEER_UNSPECIFIED, |
946 | BGP_PEER_IBGP, | |
d62a17ae | 947 | BGP_PEER_EBGP, |
948 | BGP_PEER_INTERNAL, | |
949 | BGP_PEER_CONFED, | |
3061acc2 | 950 | }; |
6d85b15b | 951 | |
d6661008 DS |
952 | /* BGP message header and packet size. */ |
953 | #define BGP_MARKER_SIZE 16 | |
954 | #define BGP_HEADER_SIZE 19 | |
556beacf QY |
955 | #define BGP_STANDARD_MESSAGE_MAX_PACKET_SIZE 4096 |
956 | #define BGP_EXTENDED_MESSAGE_MAX_PACKET_SIZE 65535 | |
957 | #define BGP_MAX_PACKET_SIZE BGP_EXTENDED_MESSAGE_MAX_PACKET_SIZE | |
0a91ff55 | 958 | #define BGP_MAX_PACKET_SIZE_OVERFLOW 1024 |
d6661008 | 959 | |
3f9c7369 DS |
960 | /* |
961 | * Trigger delay for bgp_announce_route(). | |
962 | */ | |
963 | #define BGP_ANNOUNCE_ROUTE_SHORT_DELAY_MS 100 | |
964 | #define BGP_ANNOUNCE_ROUTE_DELAY_MS 500 | |
965 | ||
d62a17ae | 966 | struct peer_af { |
967 | /* back pointer to the peer */ | |
968 | struct peer *peer; | |
3f9c7369 | 969 | |
d62a17ae | 970 | /* which subgroup the peer_af belongs to */ |
971 | struct update_subgroup *subgroup; | |
3f9c7369 | 972 | |
d62a17ae | 973 | /* for being part of an update subgroup's peer list */ |
974 | LIST_ENTRY(peer_af) subgrp_train; | |
3f9c7369 | 975 | |
d62a17ae | 976 | /* for being part of a packet's peer list */ |
977 | LIST_ENTRY(peer_af) pkt_train; | |
3f9c7369 | 978 | |
d62a17ae | 979 | struct bpacket *next_pkt_to_send; |
3f9c7369 | 980 | |
d62a17ae | 981 | /* |
982 | * Trigger timer for bgp_announce_route(). | |
983 | */ | |
984 | struct thread *t_announce_route; | |
3f9c7369 | 985 | |
d62a17ae | 986 | afi_t afi; |
987 | safi_t safi; | |
988 | int afid; | |
3f9c7369 | 989 | }; |
b0965c44 | 990 | /* BGP GR per peer ds */ |
991 | ||
2ba1fe69 | 992 | #define BGP_PEER_GR_MODE 5 |
993 | #define BGP_PEER_GR_EVENT_CMD 6 | |
b0965c44 | 994 | |
995 | enum peer_mode { | |
996 | PEER_HELPER = 0, | |
997 | PEER_GR, | |
998 | PEER_DISABLE, | |
999 | PEER_INVALID, | |
1000 | PEER_GLOBAL_INHERIT /* This is the default mode */ | |
1001 | ||
1002 | }; | |
1003 | ||
1004 | enum peer_gr_command { | |
1005 | PEER_GR_CMD = 0, | |
1006 | NO_PEER_GR_CMD, | |
2ba1fe69 | 1007 | PEER_DISABLE_CMD, |
b0965c44 | 1008 | NO_PEER_DISABLE_CMD, |
1009 | PEER_HELPER_CMD, | |
1010 | NO_PEER_HELPER_CMD | |
1011 | }; | |
1012 | ||
1013 | typedef unsigned int (*bgp_peer_gr_action_ptr)(struct peer *, int, int); | |
1014 | ||
1015 | struct bgp_peer_gr { | |
1016 | enum peer_mode next_state; | |
1017 | bgp_peer_gr_action_ptr action_fun; | |
1018 | }; | |
1019 | ||
21e8caa2 QY |
1020 | /* |
1021 | * BGP FSM event codes, per RFC 4271 ss. 8.1 | |
1022 | */ | |
1023 | enum bgp_fsm_rfc_codes { | |
1024 | BGP_FSM_ManualStart = 1, | |
1025 | BGP_FSM_ManualStop = 2, | |
1026 | BGP_FSM_AutomaticStart = 3, | |
1027 | BGP_FSM_ManualStart_with_PassiveTcpEstablishment = 4, | |
1028 | BGP_FSM_AutomaticStart_with_PassiveTcpEstablishment = 5, | |
1029 | BGP_FSM_AutomaticStart_with_DampPeerOscillations = 6, | |
1030 | BGP_FSM_AutomaticStart_with_DampPeerOscillations_and_PassiveTcpEstablishment = | |
1031 | 7, | |
1032 | BGP_FSM_AutomaticStop = 8, | |
1033 | BGP_FSM_ConnectRetryTimer_Expires = 9, | |
1034 | BGP_FSM_HoldTimer_Expires = 10, | |
1035 | BGP_FSM_KeepaliveTimer_Expires = 11, | |
1036 | BGP_FSM_DelayOpenTimer_Expires = 12, | |
1037 | BGP_FSM_IdleHoldTimer_Expires = 13, | |
1038 | BGP_FSM_TcpConnection_Valid = 14, | |
1039 | BGP_FSM_Tcp_CR_Invalid = 15, | |
1040 | BGP_FSM_Tcp_CR_Acked = 16, | |
1041 | BGP_FSM_TcpConnectionConfirmed = 17, | |
1042 | BGP_FSM_TcpConnectionFails = 18, | |
1043 | BGP_FSM_BGPOpen = 19, | |
1044 | BGP_FSM_BGPOpen_with_DelayOpenTimer_running = 20, | |
1045 | BGP_FSM_BGPHeaderErr = 21, | |
1046 | BGP_FSM_BGPOpenMsgErr = 22, | |
1047 | BGP_FSM_OpenCollisionDump = 23, | |
1048 | BGP_FSM_NotifMsgVerErr = 24, | |
1049 | BGP_FSM_NotifMsg = 25, | |
1050 | BGP_FSM_KeepAliveMsg = 26, | |
1051 | BGP_FSM_UpdateMsg = 27, | |
1052 | BGP_FSM_UpdateMsgErr = 28 | |
1053 | }; | |
1054 | ||
1055 | /* | |
1056 | * BGP finite state machine events | |
1057 | * | |
1058 | * Note: these do not correspond to RFC-defined event codes. Those are | |
1059 | * defined elsewhere. | |
1060 | */ | |
d1060698 DS |
1061 | enum bgp_fsm_events { |
1062 | BGP_Start = 1, | |
1063 | BGP_Stop, | |
1064 | TCP_connection_open, | |
6c537a18 | 1065 | TCP_connection_open_w_delay, |
d1060698 DS |
1066 | TCP_connection_closed, |
1067 | TCP_connection_open_failed, | |
1068 | TCP_fatal_error, | |
1069 | ConnectRetry_timer_expired, | |
1070 | Hold_Timer_expired, | |
1071 | KeepAlive_timer_expired, | |
6c537a18 | 1072 | DelayOpen_timer_expired, |
d1060698 DS |
1073 | Receive_OPEN_message, |
1074 | Receive_KEEPALIVE_message, | |
1075 | Receive_UPDATE_message, | |
1076 | Receive_NOTIFICATION_message, | |
1077 | Clearing_Completed, | |
1078 | BGP_EVENTS_MAX, | |
1079 | }; | |
3f9c7369 | 1080 | |
8398b5d5 DS |
1081 | /* BGP finite state machine status. */ |
1082 | enum bgp_fsm_status { | |
1083 | Idle = 1, | |
1084 | Connect, | |
1085 | Active, | |
1086 | OpenSent, | |
1087 | OpenConfirm, | |
1088 | Established, | |
1089 | Clearing, | |
1090 | Deleted, | |
1091 | BGP_STATUS_MAX, | |
1092 | }; | |
1093 | ||
169afe9d QY |
1094 | #define PEER_HOSTNAME(peer) ((peer)->host ? (peer)->host : "(unknown peer)") |
1095 | ||
8606be87 DA |
1096 | struct llgr_info { |
1097 | uint32_t stale_time; | |
1098 | uint8_t flags; | |
1099 | }; | |
1100 | ||
718e3744 | 1101 | /* BGP neighbor structure. */ |
d62a17ae | 1102 | struct peer { |
1103 | /* BGP structure. */ | |
1104 | struct bgp *bgp; | |
1105 | ||
1106 | /* reference count, primarily to allow bgp_process'ing of route_node's | |
1107 | * to be done after a struct peer is deleted. | |
1108 | * | |
1109 | * named 'lock' for hysterical reasons within Quagga. | |
1110 | */ | |
1111 | int lock; | |
1112 | ||
1113 | /* BGP peer group. */ | |
1114 | struct peer_group *group; | |
1115 | uint64_t version[AFI_MAX][SAFI_MAX]; | |
1116 | ||
1117 | /* BGP peer_af structures, per configured AF on this peer */ | |
1118 | struct peer_af *peer_af_array[BGP_AF_MAX]; | |
1119 | ||
1120 | /* Peer's remote AS number. */ | |
1121 | int as_type; | |
1122 | as_t as; | |
1123 | ||
1124 | /* Peer's local AS number. */ | |
1125 | as_t local_as; | |
1126 | ||
3061acc2 | 1127 | enum bgp_peer_sort sort; |
d62a17ae | 1128 | |
1129 | /* Peer's Change local AS number. */ | |
1130 | as_t change_local_as; | |
1131 | ||
1132 | /* Remote router ID. */ | |
1133 | struct in_addr remote_id; | |
1134 | ||
1135 | /* Local router ID. */ | |
1136 | struct in_addr local_id; | |
1137 | ||
1138 | /* Packet receive and send buffer. */ | |
424ab01d QY |
1139 | pthread_mutex_t io_mtx; // guards ibuf, obuf |
1140 | struct stream_fifo *ibuf; // packets waiting to be processed | |
1141 | struct stream_fifo *obuf; // packets waiting to be written | |
1142 | ||
338f4a78 | 1143 | /* used as a block to deposit raw wire data to */ |
556beacf | 1144 | uint8_t ibuf_scratch[BGP_EXTENDED_MESSAGE_MAX_PACKET_SIZE |
338f4a78 | 1145 | * BGP_READ_PACKET_MAX]; |
74ffbfe6 QY |
1146 | struct ringbuf *ibuf_work; // WiP buffer used by bgp_read() only |
1147 | struct stream *obuf_work; // WiP buffer used to construct packets | |
424ab01d QY |
1148 | |
1149 | struct stream *curr; // the current packet being parsed | |
d62a17ae | 1150 | |
1151 | /* We use a separate stream to encode MP_REACH_NLRI for efficient | |
424ab01d | 1152 | * NLRI packing. peer->obuf_work stores all the other attributes. The |
d62a17ae | 1153 | * actual packet is then constructed by concatenating the two. |
1154 | */ | |
1155 | struct stream *scratch; | |
1156 | ||
1157 | /* the doppelganger peer structure, due to dual TCP conn setup */ | |
1158 | struct peer *doppelganger; | |
1159 | ||
1160 | /* Status of the peer. */ | |
8398b5d5 DS |
1161 | enum bgp_fsm_status status; |
1162 | enum bgp_fsm_status ostatus; | |
d62a17ae | 1163 | |
1164 | /* FSM events, stored for debug purposes. | |
1165 | * Note: uchar used for reduced memory usage. | |
1166 | */ | |
d1060698 DS |
1167 | enum bgp_fsm_events cur_event; |
1168 | enum bgp_fsm_events last_event; | |
1169 | enum bgp_fsm_events last_major_event; | |
d62a17ae | 1170 | |
1171 | /* Peer index, used for dumping TABLE_DUMP_V2 format */ | |
1172 | uint16_t table_dump_index; | |
1173 | ||
1174 | /* Peer information */ | |
1175 | int fd; /* File descriptor */ | |
1176 | int ttl; /* TTL of TCP connection to the peer. */ | |
1177 | int rtt; /* Estimated round-trip-time from TCP_INFO */ | |
8336c896 DA |
1178 | int rtt_expected; /* Expected round-trip-time for a peer */ |
1179 | uint8_t rtt_keepalive_rcv; /* Received count for RTT shutdown */ | |
1180 | uint8_t rtt_keepalive_conf; /* Configured count for RTT shutdown */ | |
d62a17ae | 1181 | int gtsm_hops; /* minimum hopcount to peer */ |
1182 | char *desc; /* Description of the peer. */ | |
1183 | unsigned short port; /* Destination port for peer */ | |
1184 | char *host; /* Printable address of the peer. */ | |
1185 | union sockunion su; /* Sockunion address of the peer. */ | |
a80beece | 1186 | #define BGP_PEER_SU_UNSPEC(peer) (peer->su.sa.sa_family == AF_UNSPEC) |
d62a17ae | 1187 | time_t uptime; /* Last Up/Down time */ |
1188 | time_t readtime; /* Last read time */ | |
1189 | time_t resettime; /* Last reset time */ | |
1190 | ||
d62a17ae | 1191 | char *conf_if; /* neighbor interface config name. */ |
1192 | struct interface *ifp; /* corresponding interface */ | |
1193 | char *ifname; /* bind interface name. */ | |
1194 | char *update_if; | |
1195 | union sockunion *update_source; | |
1196 | ||
1197 | union sockunion *su_local; /* Sockunion of local address. */ | |
1198 | union sockunion *su_remote; /* Sockunion of remote address. */ | |
1199 | int shared_network; /* Is this peer shared same network. */ | |
1200 | struct bgp_nexthop nexthop; /* Nexthop */ | |
1201 | ||
d864dd9e EB |
1202 | /* Roles in bgp session */ |
1203 | uint8_t local_role; | |
8f2d6021 | 1204 | uint8_t remote_role; |
d864dd9e EB |
1205 | #define ROLE_PROVIDER 0 |
1206 | #define ROLE_RS_SERVER 1 | |
1207 | #define ROLE_RS_CLIENT 2 | |
1208 | #define ROLE_CUSTOMER 3 | |
1209 | #define ROLE_PEER 4 | |
8f2d6021 | 1210 | #define ROLE_UNDEFINED 255 |
d864dd9e EB |
1211 | |
1212 | #define ROLE_NAME_MAX_LEN 20 | |
1213 | ||
d62a17ae | 1214 | /* Peer address family configuration. */ |
d7c0a89a QY |
1215 | uint8_t afc[AFI_MAX][SAFI_MAX]; |
1216 | uint8_t afc_nego[AFI_MAX][SAFI_MAX]; | |
1217 | uint8_t afc_adv[AFI_MAX][SAFI_MAX]; | |
1218 | uint8_t afc_recv[AFI_MAX][SAFI_MAX]; | |
d62a17ae | 1219 | |
1220 | /* Capability flags (reset in bgp_stop) */ | |
d7c0a89a | 1221 | uint32_t cap; |
e9faf4be QY |
1222 | #define PEER_CAP_REFRESH_ADV (1U << 0) /* refresh advertised */ |
1223 | #define PEER_CAP_REFRESH_OLD_RCV (1U << 1) /* refresh old received */ | |
1224 | #define PEER_CAP_REFRESH_NEW_RCV (1U << 2) /* refresh rfc received */ | |
1225 | #define PEER_CAP_DYNAMIC_ADV (1U << 3) /* dynamic advertised */ | |
1226 | #define PEER_CAP_DYNAMIC_RCV (1U << 4) /* dynamic received */ | |
1227 | #define PEER_CAP_RESTART_ADV (1U << 5) /* restart advertised */ | |
1228 | #define PEER_CAP_RESTART_RCV (1U << 6) /* restart received */ | |
1229 | #define PEER_CAP_AS4_ADV (1U << 7) /* as4 advertised */ | |
1230 | #define PEER_CAP_AS4_RCV (1U << 8) /* as4 received */ | |
54394daa DA |
1231 | /* sent graceful-restart restart (R) bit */ |
1232 | #define PEER_CAP_GRACEFUL_RESTART_R_BIT_ADV (1U << 9) | |
1233 | /* received graceful-restart restart (R) bit */ | |
1234 | #define PEER_CAP_GRACEFUL_RESTART_R_BIT_RCV (1U << 10) | |
e9faf4be QY |
1235 | #define PEER_CAP_ADDPATH_ADV (1U << 11) /* addpath advertised */ |
1236 | #define PEER_CAP_ADDPATH_RCV (1U << 12) /* addpath received */ | |
1237 | #define PEER_CAP_ENHE_ADV (1U << 13) /* Extended nexthop advertised */ | |
1238 | #define PEER_CAP_ENHE_RCV (1U << 14) /* Extended nexthop received */ | |
1239 | #define PEER_CAP_HOSTNAME_ADV (1U << 15) /* hostname advertised */ | |
1240 | #define PEER_CAP_HOSTNAME_RCV (1U << 16) /* hostname received */ | |
9af52ccf DA |
1241 | #define PEER_CAP_ENHANCED_RR_ADV (1U << 17) /* enhanced rr advertised */ |
1242 | #define PEER_CAP_ENHANCED_RR_RCV (1U << 18) /* enhanced rr received */ | |
ef56aee4 DA |
1243 | #define PEER_CAP_EXTENDED_MESSAGE_ADV (1U << 19) |
1244 | #define PEER_CAP_EXTENDED_MESSAGE_RCV (1U << 20) | |
8606be87 DA |
1245 | #define PEER_CAP_LLGR_ADV (1U << 21) |
1246 | #define PEER_CAP_LLGR_RCV (1U << 22) | |
eea685b6 DA |
1247 | /* sent graceful-restart notification (N) bit */ |
1248 | #define PEER_CAP_GRACEFUL_RESTART_N_BIT_ADV (1U << 23) | |
1249 | /* received graceful-restart notification (N) bit */ | |
1250 | #define PEER_CAP_GRACEFUL_RESTART_N_BIT_RCV (1U << 24) | |
d864dd9e EB |
1251 | #define PEER_CAP_ROLE_ADV (1U << 25) /* role advertised */ |
1252 | #define PEER_CAP_ROLE_RCV (1U << 26) /* role received */ | |
718e3744 | 1253 | |
d62a17ae | 1254 | /* Capability flags (reset in bgp_stop) */ |
d7c0a89a | 1255 | uint32_t af_cap[AFI_MAX][SAFI_MAX]; |
e9faf4be QY |
1256 | #define PEER_CAP_ORF_PREFIX_SM_ADV (1U << 0) /* send-mode advertised */ |
1257 | #define PEER_CAP_ORF_PREFIX_RM_ADV (1U << 1) /* receive-mode advertised */ | |
1258 | #define PEER_CAP_ORF_PREFIX_SM_RCV (1U << 2) /* send-mode received */ | |
1259 | #define PEER_CAP_ORF_PREFIX_RM_RCV (1U << 3) /* receive-mode received */ | |
1260 | #define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1U << 4) /* send-mode received */ | |
1261 | #define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1U << 5) /* receive-mode received */ | |
1262 | #define PEER_CAP_RESTART_AF_RCV (1U << 6) /* graceful restart afi/safi received */ | |
1263 | #define PEER_CAP_RESTART_AF_PRESERVE_RCV (1U << 7) /* graceful restart afi/safi F-bit received */ | |
1264 | #define PEER_CAP_ADDPATH_AF_TX_ADV (1U << 8) /* addpath tx advertised */ | |
1265 | #define PEER_CAP_ADDPATH_AF_TX_RCV (1U << 9) /* addpath tx received */ | |
1266 | #define PEER_CAP_ADDPATH_AF_RX_ADV (1U << 10) /* addpath rx advertised */ | |
1267 | #define PEER_CAP_ADDPATH_AF_RX_RCV (1U << 11) /* addpath rx received */ | |
1268 | #define PEER_CAP_ENHE_AF_ADV (1U << 12) /* Extended nexthopi afi/safi advertised */ | |
1269 | #define PEER_CAP_ENHE_AF_RCV (1U << 13) /* Extended nexthop afi/safi received */ | |
1270 | #define PEER_CAP_ENHE_AF_NEGO (1U << 14) /* Extended nexthop afi/safi negotiated */ | |
8606be87 DA |
1271 | #define PEER_CAP_LLGR_AF_ADV (1U << 15) |
1272 | #define PEER_CAP_LLGR_AF_RCV (1U << 16) | |
718e3744 | 1273 | |
d62a17ae | 1274 | /* Global configuration flags. */ |
9fb964de PM |
1275 | /* |
1276 | * Parallel array to flags that indicates whether each flag originates | |
1277 | * from a peer-group or if it is config that is specific to this | |
1278 | * individual peer. If a flag is set independent of the peer-group, the | |
1279 | * same bit should be set here. If this peer is a peer-group, this | |
1280 | * memory region should be all zeros. | |
1281 | * | |
1282 | * The assumption is that the default state for all flags is unset, | |
1283 | * so if a flag is unset, the corresponding override flag is unset too. | |
1284 | * However if a flag is set, the corresponding override flag is set. | |
1285 | */ | |
1286 | uint32_t flags_override; | |
1287 | /* | |
1288 | * Parallel array to flags that indicates whether the default behavior | |
1289 | * of *flags_override* should be inverted. If a flag is unset and the | |
1290 | * corresponding invert flag is set, the corresponding override flag | |
1291 | * would be set. However if a flag is set and the corresponding invert | |
1292 | * flag is unset, the corresponding override flag would be unset. | |
1293 | * | |
1294 | * This can be used for attributes like *send-community*, which are | |
1295 | * implicitely enabled and have to be disabled explicitely, compared to | |
1296 | * 'normal' attributes like *next-hop-self* which are implicitely set. | |
1297 | * | |
1298 | * All operations dealing with flags should apply the following boolean | |
1299 | * logic to keep the internal flag system in a sane state: | |
1300 | * | |
1301 | * value=0 invert=0 Inherit flag if member, otherwise unset flag | |
1302 | * value=0 invert=1 Unset flag unconditionally | |
1303 | * value=1 invert=0 Set flag unconditionally | |
1304 | * value=1 invert=1 Inherit flag if member, otherwise set flag | |
1305 | * | |
1306 | * Contrary to the implementation of *flags_override*, the flag | |
1307 | * inversion state can be set either on the peer OR the peer *and* the | |
1308 | * peer-group. This was done on purpose, as the inversion state of a | |
1309 | * flag can be determined on either the peer or the peer-group. | |
1310 | * | |
1311 | * Example: Enabling the cisco configuration mode inverts all flags | |
1312 | * related to *send-community* unconditionally for both peer-groups and | |
1313 | * peers. | |
1314 | * | |
1315 | * This behavior is different for interface peers though, which enable | |
1316 | * the *extended-nexthop* flag by default, which regular peers do not. | |
1317 | * As the peer-group can contain both regular and interface peers, the | |
1318 | * flag inversion state must be set on the peer only. | |
1319 | * | |
1320 | * When a peer inherits the configuration from a peer-group and the | |
1321 | * inversion state of the flag differs between peer and peer-group, the | |
1322 | * newly set value must equal to the inverted state of the peer-group. | |
1323 | */ | |
1324 | uint32_t flags_invert; | |
1325 | /* | |
1326 | * Effective array for storing the peer/peer-group flags. In case of a | |
1327 | * peer-group, the peer-specific overrides (see flags_override and | |
1328 | * flags_invert) must be respected. | |
1329 | */ | |
0ebabd41 | 1330 | uint64_t flags; |
83194f39 DA |
1331 | #define PEER_FLAG_PASSIVE (1ULL << 0) /* passive mode */ |
1332 | #define PEER_FLAG_SHUTDOWN (1ULL << 1) /* shutdown */ | |
1333 | #define PEER_FLAG_DONT_CAPABILITY (1ULL << 2) /* dont-capability */ | |
1334 | #define PEER_FLAG_OVERRIDE_CAPABILITY (1ULL << 3) /* override-capability */ | |
1335 | #define PEER_FLAG_STRICT_CAP_MATCH (1ULL << 4) /* strict-match */ | |
1336 | #define PEER_FLAG_DYNAMIC_CAPABILITY (1ULL << 5) /* dynamic capability */ | |
1337 | #define PEER_FLAG_DISABLE_CONNECTED_CHECK (1ULL << 6) /* disable-connected-check */ | |
1338 | #define PEER_FLAG_LOCAL_AS_NO_PREPEND (1ULL << 7) /* local-as no-prepend */ | |
1339 | #define PEER_FLAG_LOCAL_AS_REPLACE_AS (1ULL << 8) /* local-as no-prepend replace-as */ | |
1340 | #define PEER_FLAG_DELETE (1ULL << 9) /* mark the peer for deleting */ | |
1341 | #define PEER_FLAG_CONFIG_NODE (1ULL << 10) /* the node to update configs on */ | |
1342 | #define PEER_FLAG_LONESOUL (1ULL << 11) | |
1343 | #define PEER_FLAG_DYNAMIC_NEIGHBOR (1ULL << 12) /* dynamic neighbor */ | |
1344 | #define PEER_FLAG_CAPABILITY_ENHE (1ULL << 13) /* Extended next-hop (rfc 5549)*/ | |
1345 | #define PEER_FLAG_IFPEER_V6ONLY (1ULL << 14) /* if-based peer is v6 only */ | |
1346 | #define PEER_FLAG_IS_RFAPI_HD (1ULL << 15) /* attached to rfapi HD */ | |
1347 | #define PEER_FLAG_ENFORCE_FIRST_AS (1ULL << 16) /* enforce-first-as */ | |
1348 | #define PEER_FLAG_ROUTEADV (1ULL << 17) /* route advertise */ | |
1349 | #define PEER_FLAG_TIMER (1ULL << 18) /* keepalive & holdtime */ | |
1350 | #define PEER_FLAG_TIMER_CONNECT (1ULL << 19) /* connect timer */ | |
1351 | #define PEER_FLAG_PASSWORD (1ULL << 20) /* password */ | |
1352 | #define PEER_FLAG_LOCAL_AS (1ULL << 21) /* local-as */ | |
1353 | #define PEER_FLAG_UPDATE_SOURCE (1ULL << 22) /* update-source */ | |
02a82b47 | 1354 | |
b0965c44 | 1355 | /* BGP-GR Peer related flags */ |
83194f39 DA |
1356 | #define PEER_FLAG_GRACEFUL_RESTART_HELPER (1ULL << 23) /* Helper */ |
1357 | #define PEER_FLAG_GRACEFUL_RESTART (1ULL << 24) /* Graceful Restart */ | |
1358 | #define PEER_FLAG_GRACEFUL_RESTART_GLOBAL_INHERIT (1ULL << 25) /* Global-Inherit */ | |
1359 | #define PEER_FLAG_RTT_SHUTDOWN (1ULL << 26) /* shutdown rtt */ | |
1360 | #define PEER_FLAG_TIMER_DELAYOPEN (1ULL << 27) /* delayopen timer */ | |
1361 | #define PEER_FLAG_TCP_MSS (1ULL << 28) /* tcp-mss */ | |
27aa23a4 DA |
1362 | /* Disable IEEE floating-point link bandwidth encoding in |
1363 | * extended communities. | |
1364 | */ | |
83194f39 | 1365 | #define PEER_FLAG_DISABLE_LINK_BW_ENCODING_IEEE (1ULL << 29) |
d08c0c80 | 1366 | /* force the extended format for Optional Parameters in OPEN message */ |
83194f39 | 1367 | #define PEER_FLAG_EXTENDED_OPT_PARAMS (1ULL << 30) |
b0965c44 | 1368 | |
d864dd9e | 1369 | /* BGP Open Policy flags. |
7dddd1f7 DA |
1370 | * Enforce using roles on both sides: |
1371 | * `local-role ROLE strict-mode` configured. | |
d864dd9e | 1372 | */ |
7dddd1f7 DA |
1373 | #define PEER_FLAG_ROLE_STRICT_MODE (1ULL << 31) |
1374 | /* `local-role` configured */ | |
1375 | #define PEER_FLAG_ROLE (1ULL << 32) | |
c41e9372 | 1376 | #define PEER_FLAG_PORT (1ULL << 33) |
97a52c82 | 1377 | #define PEER_FLAG_AIGP (1ULL << 34) |
4f770cf1 | 1378 | #define PEER_FLAG_GRACEFUL_SHUTDOWN (1ULL << 35) |
d864dd9e | 1379 | |
b0965c44 | 1380 | /* |
1381 | *GR-Disabled mode means unset PEER_FLAG_GRACEFUL_RESTART | |
1382 | *& PEER_FLAG_GRACEFUL_RESTART_HELPER | |
1383 | *and PEER_FLAG_GRACEFUL_RESTART_GLOBAL_INHERIT | |
1384 | */ | |
1385 | ||
2ba1fe69 | 1386 | struct bgp_peer_gr PEER_GR_FSM[BGP_PEER_GR_MODE][BGP_PEER_GR_EVENT_CMD]; |
b0965c44 | 1387 | enum peer_mode peer_gr_present_state; |
1388 | /* Non stop forwarding afi-safi count for BGP gr feature*/ | |
1389 | uint8_t nsf_af_count; | |
1390 | ||
1391 | uint8_t peer_gr_new_status_flag; | |
e9faf4be QY |
1392 | #define PEER_GRACEFUL_RESTART_NEW_STATE_HELPER (1U << 0) |
1393 | #define PEER_GRACEFUL_RESTART_NEW_STATE_RESTART (1U << 1) | |
1394 | #define PEER_GRACEFUL_RESTART_NEW_STATE_INHERIT (1U << 2) | |
b0965c44 | 1395 | |
d62a17ae | 1396 | /* outgoing message sent in CEASE_ADMIN_SHUTDOWN notify */ |
1397 | char *tx_shutdown_message; | |
718e3744 | 1398 | |
d62a17ae | 1399 | /* NSF mode (graceful restart) */ |
d7c0a89a | 1400 | uint8_t nsf[AFI_MAX][SAFI_MAX]; |
9e3b51a7 | 1401 | /* EOR Send time */ |
1402 | time_t eor_stime[AFI_MAX][SAFI_MAX]; | |
1403 | /* Last update packet sent time */ | |
1404 | time_t pkt_stime[AFI_MAX][SAFI_MAX]; | |
93406d87 | 1405 | |
04e1c5bb QY |
1406 | /* Peer Per AF flags */ |
1407 | /* | |
9fb964de PM |
1408 | * Please consult the comments for *flags_override*, *flags_invert* and |
1409 | * *flags* to understand what these three arrays do. The address-family | |
1410 | * specific attributes are being treated the exact same way as global | |
1411 | * peer attributes. | |
04e1c5bb | 1412 | */ |
da5e1a58 DA |
1413 | uint64_t af_flags_override[AFI_MAX][SAFI_MAX]; |
1414 | uint64_t af_flags_invert[AFI_MAX][SAFI_MAX]; | |
1415 | uint64_t af_flags[AFI_MAX][SAFI_MAX]; | |
b6a3df6b DA |
1416 | #define PEER_FLAG_SEND_COMMUNITY (1ULL << 0) |
1417 | #define PEER_FLAG_SEND_EXT_COMMUNITY (1ULL << 1) | |
1418 | #define PEER_FLAG_NEXTHOP_SELF (1ULL << 2) | |
1419 | #define PEER_FLAG_REFLECTOR_CLIENT (1ULL << 3) | |
1420 | #define PEER_FLAG_RSERVER_CLIENT (1ULL << 4) | |
1421 | #define PEER_FLAG_SOFT_RECONFIG (1ULL << 5) | |
1422 | #define PEER_FLAG_AS_PATH_UNCHANGED (1ULL << 6) | |
1423 | #define PEER_FLAG_NEXTHOP_UNCHANGED (1ULL << 7) | |
1424 | #define PEER_FLAG_MED_UNCHANGED (1ULL << 8) | |
1425 | #define PEER_FLAG_DEFAULT_ORIGINATE (1ULL << 9) | |
1426 | #define PEER_FLAG_REMOVE_PRIVATE_AS (1ULL << 10) | |
1427 | #define PEER_FLAG_ALLOWAS_IN (1ULL << 11) | |
1428 | #define PEER_FLAG_ORF_PREFIX_SM (1ULL << 12) | |
1429 | #define PEER_FLAG_ORF_PREFIX_RM (1ULL << 13) | |
1430 | #define PEER_FLAG_MAX_PREFIX (1ULL << 14) | |
1431 | #define PEER_FLAG_MAX_PREFIX_WARNING (1ULL << 15) | |
1432 | #define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1ULL << 16) | |
1433 | #define PEER_FLAG_FORCE_NEXTHOP_SELF (1ULL << 17) | |
1434 | #define PEER_FLAG_REMOVE_PRIVATE_AS_ALL (1ULL << 18) | |
1435 | #define PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE (1ULL << 19) | |
1436 | #define PEER_FLAG_AS_OVERRIDE (1ULL << 20) | |
1437 | #define PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE (1ULL << 21) | |
1438 | #define PEER_FLAG_WEIGHT (1ULL << 24) | |
1439 | #define PEER_FLAG_ALLOWAS_IN_ORIGIN (1ULL << 25) | |
1440 | #define PEER_FLAG_SEND_LARGE_COMMUNITY (1ULL << 26) | |
1441 | #define PEER_FLAG_MAX_PREFIX_OUT (1ULL << 27) | |
1442 | #define PEER_FLAG_MAX_PREFIX_FORCE (1ULL << 28) | |
1443 | #define PEER_FLAG_DISABLE_ADDPATH_RX (1ULL << 29) | |
1444 | #define PEER_FLAG_SOO (1ULL << 30) | |
cfd01fc0 | 1445 | #define PEER_FLAG_ACCEPT_OWN (1ULL << 31) |
0df7c91f | 1446 | |
dcc68b5e MS |
1447 | enum bgp_addpath_strat addpath_type[AFI_MAX][SAFI_MAX]; |
1448 | ||
d62a17ae | 1449 | /* MD5 password */ |
1450 | char *password; | |
718e3744 | 1451 | |
d62a17ae | 1452 | /* default-originate route-map. */ |
1453 | struct { | |
1454 | char *name; | |
1455 | struct route_map *map; | |
1456 | } default_rmap[AFI_MAX][SAFI_MAX]; | |
718e3744 | 1457 | |
d62a17ae | 1458 | /* Peer status flags. */ |
d7c0a89a | 1459 | uint16_t sflags; |
e9faf4be QY |
1460 | #define PEER_STATUS_ACCEPT_PEER (1U << 0) /* accept peer */ |
1461 | #define PEER_STATUS_PREFIX_OVERFLOW (1U << 1) /* prefix-overflow */ | |
1462 | #define PEER_STATUS_CAPABILITY_OPEN (1U << 2) /* capability open send */ | |
1463 | #define PEER_STATUS_HAVE_ACCEPT (1U << 3) /* accept peer's parent */ | |
1464 | #define PEER_STATUS_GROUP (1U << 4) /* peer-group conf */ | |
1465 | #define PEER_STATUS_NSF_MODE (1U << 5) /* NSF aware peer */ | |
1466 | #define PEER_STATUS_NSF_WAIT (1U << 6) /* wait comeback peer */ | |
d08c0c80 DA |
1467 | /* received extended format encoding for OPEN message */ |
1468 | #define PEER_STATUS_EXT_OPT_PARAMS_LENGTH (1U << 7) | |
718e3744 | 1469 | |
d62a17ae | 1470 | /* Peer status af flags (reset in bgp_stop) */ |
d7c0a89a | 1471 | uint16_t af_sflags[AFI_MAX][SAFI_MAX]; |
e9faf4be QY |
1472 | #define PEER_STATUS_ORF_PREFIX_SEND (1U << 0) /* prefix-list send peer */ |
1473 | #define PEER_STATUS_ORF_WAIT_REFRESH (1U << 1) /* wait refresh received peer */ | |
1474 | #define PEER_STATUS_PREFIX_THRESHOLD (1U << 2) /* exceed prefix-threshold */ | |
1475 | #define PEER_STATUS_PREFIX_LIMIT (1U << 3) /* exceed prefix-limit */ | |
1476 | #define PEER_STATUS_EOR_SEND (1U << 4) /* end-of-rib send to peer */ | |
1477 | #define PEER_STATUS_EOR_RECEIVED (1U << 5) /* end-of-rib received from peer */ | |
9af52ccf DA |
1478 | #define PEER_STATUS_ENHANCED_REFRESH (1U << 6) /* Enhanced Route Refresh */ |
1479 | #define PEER_STATUS_BORR_SEND (1U << 7) /* BoRR send to peer */ | |
1480 | #define PEER_STATUS_BORR_RECEIVED (1U << 8) /* BoRR received from peer */ | |
1481 | #define PEER_STATUS_EORR_SEND (1U << 9) /* EoRR send to peer */ | |
1482 | #define PEER_STATUS_EORR_RECEIVED (1U << 10) /* EoRR received from peer */ | |
1479ed2f DA |
1483 | /* LLGR aware peer */ |
1484 | #define PEER_STATUS_LLGR_WAIT (1U << 11) | |
a783cc05 | 1485 | #define PEER_STATUS_REFRESH_PENDING (1U << 12) /* refresh request from peer */ |
5597214c | 1486 | #define PEER_STATUS_RTT_SHUTDOWN (1U << 13) /* In shutdown state due to RTT */ |
e0701b79 | 1487 | |
b90a8e13 | 1488 | /* Configured timer values. */ |
1588f6f4 QY |
1489 | _Atomic uint32_t holdtime; |
1490 | _Atomic uint32_t keepalive; | |
1491 | _Atomic uint32_t connect; | |
1492 | _Atomic uint32_t routeadv; | |
6c537a18 | 1493 | _Atomic uint32_t delayopen; |
d62a17ae | 1494 | |
1495 | /* Timer values. */ | |
1588f6f4 QY |
1496 | _Atomic uint32_t v_start; |
1497 | _Atomic uint32_t v_connect; | |
1498 | _Atomic uint32_t v_holdtime; | |
1499 | _Atomic uint32_t v_keepalive; | |
1500 | _Atomic uint32_t v_routeadv; | |
6c537a18 | 1501 | _Atomic uint32_t v_delayopen; |
1588f6f4 QY |
1502 | _Atomic uint32_t v_pmax_restart; |
1503 | _Atomic uint32_t v_gr_restart; | |
d62a17ae | 1504 | |
1505 | /* Threads. */ | |
1506 | struct thread *t_read; | |
424ab01d | 1507 | struct thread *t_write; |
d62a17ae | 1508 | struct thread *t_start; |
387f984e QY |
1509 | struct thread *t_connect_check_r; |
1510 | struct thread *t_connect_check_w; | |
d62a17ae | 1511 | struct thread *t_connect; |
1512 | struct thread *t_holdtime; | |
d62a17ae | 1513 | struct thread *t_routeadv; |
6c537a18 | 1514 | struct thread *t_delayopen; |
d62a17ae | 1515 | struct thread *t_pmax_restart; |
1516 | struct thread *t_gr_restart; | |
1517 | struct thread *t_gr_stale; | |
1479ed2f | 1518 | struct thread *t_llgr_stale[AFI_MAX][SAFI_MAX]; |
7651f277 | 1519 | struct thread *t_revalidate_all[AFI_MAX][SAFI_MAX]; |
56257a44 | 1520 | struct thread *t_generate_updgrp_packets; |
424ab01d | 1521 | struct thread *t_process_packet; |
1fae5c8e | 1522 | struct thread *t_process_packet_error; |
9af52ccf | 1523 | struct thread *t_refresh_stalepath; |
d62a17ae | 1524 | |
49507a6f | 1525 | /* Thread flags. */ |
0545c373 | 1526 | _Atomic uint32_t thread_flags; |
e9faf4be QY |
1527 | #define PEER_THREAD_WRITES_ON (1U << 0) |
1528 | #define PEER_THREAD_READS_ON (1U << 1) | |
1529 | #define PEER_THREAD_KEEPALIVES_ON (1U << 2) | |
a77e2f4b S |
1530 | #define PEER_THREAD_SUBGRP_ADV_DELAY (1U << 3) |
1531 | ||
d62a17ae | 1532 | /* workqueues */ |
1533 | struct work_queue *clear_node_queue; | |
1534 | ||
a4d82a8a PZ |
1535 | #define PEER_TOTAL_RX(peer) \ |
1536 | atomic_load_explicit(&peer->open_in, memory_order_relaxed) \ | |
1537 | + atomic_load_explicit(&peer->update_in, memory_order_relaxed) \ | |
1538 | + atomic_load_explicit(&peer->notify_in, memory_order_relaxed) \ | |
1539 | + atomic_load_explicit(&peer->refresh_in, \ | |
1540 | memory_order_relaxed) \ | |
1541 | + atomic_load_explicit(&peer->keepalive_in, \ | |
1542 | memory_order_relaxed) \ | |
1543 | + atomic_load_explicit(&peer->dynamic_cap_in, \ | |
1544 | memory_order_relaxed) | |
1545 | ||
1546 | #define PEER_TOTAL_TX(peer) \ | |
1547 | atomic_load_explicit(&peer->open_out, memory_order_relaxed) \ | |
1548 | + atomic_load_explicit(&peer->update_out, \ | |
1549 | memory_order_relaxed) \ | |
1550 | + atomic_load_explicit(&peer->notify_out, \ | |
1551 | memory_order_relaxed) \ | |
1552 | + atomic_load_explicit(&peer->refresh_out, \ | |
1553 | memory_order_relaxed) \ | |
1554 | + atomic_load_explicit(&peer->keepalive_out, \ | |
1555 | memory_order_relaxed) \ | |
1556 | + atomic_load_explicit(&peer->dynamic_cap_out, \ | |
1557 | memory_order_relaxed) | |
0112e9e0 | 1558 | |
d62a17ae | 1559 | /* Statistics field */ |
996c9314 LB |
1560 | _Atomic uint32_t open_in; /* Open message input count */ |
1561 | _Atomic uint32_t open_out; /* Open message output count */ | |
1588f6f4 QY |
1562 | _Atomic uint32_t update_in; /* Update message input count */ |
1563 | _Atomic uint32_t update_out; /* Update message ouput count */ | |
1564 | _Atomic time_t update_time; /* Update message received time. */ | |
1565 | _Atomic uint32_t keepalive_in; /* Keepalive input count */ | |
1566 | _Atomic uint32_t keepalive_out; /* Keepalive output count */ | |
1567 | _Atomic uint32_t notify_in; /* Notify input count */ | |
1568 | _Atomic uint32_t notify_out; /* Notify output count */ | |
1569 | _Atomic uint32_t refresh_in; /* Route Refresh input count */ | |
1570 | _Atomic uint32_t refresh_out; /* Route Refresh output count */ | |
1571 | _Atomic uint32_t dynamic_cap_in; /* Dynamic Capability input count. */ | |
a4d82a8a | 1572 | _Atomic uint32_t dynamic_cap_out; /* Dynamic Capability output count. */ |
d62a17ae | 1573 | |
b4d46cc9 DL |
1574 | uint32_t stat_pfx_filter; |
1575 | uint32_t stat_pfx_aspath_loop; | |
1576 | uint32_t stat_pfx_originator_loop; | |
1577 | uint32_t stat_pfx_cluster_loop; | |
1578 | uint32_t stat_pfx_nh_invalid; | |
1579 | uint32_t stat_pfx_dup_withdraw; | |
1580 | uint32_t stat_upd_7606; /* RFC7606: treat-as-withdraw */ | |
1581 | ||
d62a17ae | 1582 | /* BGP state count */ |
d7c0a89a QY |
1583 | uint32_t established; /* Established */ |
1584 | uint32_t dropped; /* Dropped */ | |
d62a17ae | 1585 | |
1586 | /* Update delay related fields */ | |
d7c0a89a | 1587 | uint8_t update_delay_over; /* When this is set, BGP is no more waiting |
d62a17ae | 1588 | for EOR */ |
1589 | ||
1590 | /* Syncronization list and time. */ | |
1591 | struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX]; | |
1592 | time_t synctime; | |
1588f6f4 QY |
1593 | /* timestamp when the last UPDATE msg was written */ |
1594 | _Atomic time_t last_write; | |
1595 | /* timestamp when the last msg was written */ | |
1596 | _Atomic time_t last_update; | |
d62a17ae | 1597 | |
bd9fb6f3 DL |
1598 | /* only updated under io_mtx. |
1599 | * last_sendq_warn is only for ratelimiting log warning messages. | |
1600 | */ | |
1601 | time_t last_sendq_ok, last_sendq_warn; | |
1602 | ||
d62a17ae | 1603 | /* Notify data. */ |
1604 | struct bgp_notify notify; | |
1605 | ||
d62a17ae | 1606 | /* Filter structure. */ |
1607 | struct bgp_filter filter[AFI_MAX][SAFI_MAX]; | |
1608 | ||
70ee29b4 PM |
1609 | /* |
1610 | * Parallel array to filter that indicates whether each filter | |
1611 | * originates from a peer-group or if it is config that is specific to | |
1612 | * this individual peer. If a filter is set independent of the | |
1613 | * peer-group the appropriate bit should be set here. If this peer is a | |
1614 | * peer-group, this memory region should be all zeros. The assumption | |
1615 | * is that the default state for all flags is unset. Due to filters | |
1616 | * having a direction (e.g. in/out/...), this array has a third | |
1617 | * dimension for storing the overrides independently per direction. | |
1618 | * | |
1619 | * Notes: | |
1620 | * - if a filter for an individual peer is unset, the corresponding | |
1621 | * override flag is unset and the peer is considered to be back in | |
1622 | * sync with the peer-group. | |
1623 | * - This does *not* contain the filter values, rather it contains | |
1624 | * whether the filter in filter (struct bgp_filter) is peer-specific. | |
1625 | */ | |
73b1082e | 1626 | uint8_t filter_override[AFI_MAX][SAFI_MAX][FILTER_MAX]; |
e9faf4be QY |
1627 | #define PEER_FT_DISTRIBUTE_LIST (1U << 0) /* distribute-list */ |
1628 | #define PEER_FT_FILTER_LIST (1U << 1) /* filter-list */ | |
1629 | #define PEER_FT_PREFIX_LIST (1U << 2) /* prefix-list */ | |
1630 | #define PEER_FT_ROUTE_MAP (1U << 3) /* route-map */ | |
1631 | #define PEER_FT_UNSUPPRESS_MAP (1U << 4) /* unsuppress-map */ | |
7f7940e6 | 1632 | #define PEER_FT_ADVERTISE_MAP (1U << 5) /* advertise-map */ |
70ee29b4 | 1633 | |
d62a17ae | 1634 | /* ORF Prefix-list */ |
1635 | struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX]; | |
1636 | ||
1637 | /* Text description of last attribute rcvd */ | |
1638 | char rcvd_attr_str[BUFSIZ]; | |
1639 | ||
1640 | /* Track if we printed the attribute in debugs */ | |
1641 | int rcvd_attr_printed; | |
1642 | ||
9cbd06e0 | 1643 | /* Accepted prefix count */ |
a0a87037 | 1644 | uint32_t pcount[AFI_MAX][SAFI_MAX]; |
d62a17ae | 1645 | |
1646 | /* Max prefix count. */ | |
a0a87037 | 1647 | uint32_t pmax[AFI_MAX][SAFI_MAX]; |
d7c0a89a QY |
1648 | uint8_t pmax_threshold[AFI_MAX][SAFI_MAX]; |
1649 | uint16_t pmax_restart[AFI_MAX][SAFI_MAX]; | |
e0701b79 | 1650 | #define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75 |
718e3744 | 1651 | |
fde246e8 DA |
1652 | /* Send prefix count. */ |
1653 | uint32_t pmax_out[AFI_MAX][SAFI_MAX]; | |
1654 | ||
d62a17ae | 1655 | /* allowas-in. */ |
1656 | char allowas_in[AFI_MAX][SAFI_MAX]; | |
ac41b2a2 | 1657 | |
01da2d26 DA |
1658 | /* soo */ |
1659 | struct ecommunity *soo[AFI_MAX][SAFI_MAX]; | |
1660 | ||
d62a17ae | 1661 | /* weight */ |
1662 | unsigned long weight[AFI_MAX][SAFI_MAX]; | |
d93f7ffc | 1663 | |
d62a17ae | 1664 | /* peer reset cause */ |
1a1f4534 | 1665 | uint8_t last_reset; |
e9faf4be QY |
1666 | #define PEER_DOWN_RID_CHANGE 1U /* bgp router-id command */ |
1667 | #define PEER_DOWN_REMOTE_AS_CHANGE 2U /* neighbor remote-as command */ | |
1668 | #define PEER_DOWN_LOCAL_AS_CHANGE 3U /* neighbor local-as command */ | |
1669 | #define PEER_DOWN_CLID_CHANGE 4U /* bgp cluster-id command */ | |
1670 | #define PEER_DOWN_CONFED_ID_CHANGE 5U /* bgp confederation id command */ | |
1671 | #define PEER_DOWN_CONFED_PEER_CHANGE 6U /* bgp confederation peer command */ | |
1672 | #define PEER_DOWN_RR_CLIENT_CHANGE 7U /* neighbor rr-client command */ | |
1673 | #define PEER_DOWN_RS_CLIENT_CHANGE 8U /* neighbor rs-client command */ | |
1674 | #define PEER_DOWN_UPDATE_SOURCE_CHANGE 9U /* neighbor update-source command */ | |
1675 | #define PEER_DOWN_AF_ACTIVATE 10U /* neighbor activate command */ | |
1676 | #define PEER_DOWN_USER_SHUTDOWN 11U /* neighbor shutdown command */ | |
1677 | #define PEER_DOWN_USER_RESET 12U /* clear ip bgp command */ | |
1678 | #define PEER_DOWN_NOTIFY_RECEIVED 13U /* notification received */ | |
1679 | #define PEER_DOWN_NOTIFY_SEND 14U /* notification send */ | |
1680 | #define PEER_DOWN_CLOSE_SESSION 15U /* tcp session close */ | |
1681 | #define PEER_DOWN_NEIGHBOR_DELETE 16U /* neghbor delete */ | |
1682 | #define PEER_DOWN_RMAP_BIND 17U /* neghbor peer-group command */ | |
1683 | #define PEER_DOWN_RMAP_UNBIND 18U /* no neighbor peer-group command */ | |
1684 | #define PEER_DOWN_CAPABILITY_CHANGE 19U /* neighbor capability command */ | |
1685 | #define PEER_DOWN_PASSIVE_CHANGE 20U /* neighbor passive command */ | |
1686 | #define PEER_DOWN_MULTIHOP_CHANGE 21U /* neighbor multihop command */ | |
1687 | #define PEER_DOWN_NSF_CLOSE_SESSION 22U /* NSF tcp session close */ | |
1688 | #define PEER_DOWN_V6ONLY_CHANGE 23U /* if-based peering v6only toggled */ | |
1689 | #define PEER_DOWN_BFD_DOWN 24U /* BFD down */ | |
1690 | #define PEER_DOWN_IF_DOWN 25U /* Interface down */ | |
1691 | #define PEER_DOWN_NBR_ADDR_DEL 26U /* Peer address lost */ | |
1692 | #define PEER_DOWN_WAITING_NHT 27U /* Waiting for NHT to resolve */ | |
1693 | #define PEER_DOWN_NBR_ADDR 28U /* Waiting for peer IPv6 IP Addr */ | |
1694 | #define PEER_DOWN_VRF_UNINIT 29U /* Associated VRF is not init yet */ | |
1695 | #define PEER_DOWN_NOAFI_ACTIVATED 30U /* No AFI/SAFI activated for peer */ | |
1696 | #define PEER_DOWN_AS_SETS_REJECT 31U /* Reject routes with AS_SET */ | |
1697 | #define PEER_DOWN_WAITING_OPEN 32U /* Waiting for open to succeed */ | |
1698 | #define PEER_DOWN_PFX_COUNT 33U /* Reached received prefix count */ | |
c5fe9095 | 1699 | #define PEER_DOWN_SOCKET_ERROR 34U /* Some socket error happened */ |
5597214c | 1700 | #define PEER_DOWN_RTT_SHUTDOWN 35U /* Automatically shutdown due to RTT */ |
1e91f1d1 DS |
1701 | /* |
1702 | * Remember to update peer_down_str in bgp_fsm.c when you add | |
1703 | * a new value to the last_reset reason | |
1704 | */ | |
1705 | ||
8dcad8e9 | 1706 | uint16_t last_reset_cause_size; |
d7c0a89a | 1707 | uint8_t last_reset_cause[BGP_MAX_PACKET_SIZE]; |
e0701b79 | 1708 | |
d62a17ae | 1709 | /* The kind of route-map Flags.*/ |
a3116965 | 1710 | uint16_t rmap_type; |
e9faf4be QY |
1711 | #define PEER_RMAP_TYPE_IN (1U << 0) /* neighbor route-map in */ |
1712 | #define PEER_RMAP_TYPE_OUT (1U << 1) /* neighbor route-map out */ | |
1713 | #define PEER_RMAP_TYPE_NETWORK (1U << 2) /* network route-map */ | |
1714 | #define PEER_RMAP_TYPE_REDISTRIBUTE (1U << 3) /* redistribute route-map */ | |
1715 | #define PEER_RMAP_TYPE_DEFAULT (1U << 4) /* default-originate route-map */ | |
1716 | #define PEER_RMAP_TYPE_NOSET (1U << 5) /* not allow to set commands */ | |
1717 | #define PEER_RMAP_TYPE_IMPORT (1U << 6) /* neighbor route-map import */ | |
1718 | #define PEER_RMAP_TYPE_EXPORT (1U << 7) /* neighbor route-map export */ | |
1719 | #define PEER_RMAP_TYPE_AGGREGATE (1U << 8) /* aggregate-address route-map */ | |
6410e93a | 1720 | |
21bfce98 RZ |
1721 | /** Peer overwrite configuration. */ |
1722 | struct bfd_session_config { | |
1723 | /** | |
1724 | * Manual configuration bit. | |
1725 | * | |
1726 | * This flag only makes sense for real peers (and not groups), | |
1727 | * it keeps track if the user explicitly configured BFD for a | |
1728 | * peer. | |
1729 | */ | |
1730 | bool manual; | |
1731 | /** Control Plane Independent. */ | |
1732 | bool cbit; | |
1733 | /** Detection multiplier. */ | |
1734 | uint8_t detection_multiplier; | |
1735 | /** Minimum required RX interval. */ | |
1736 | uint32_t min_rx; | |
1737 | /** Minimum required TX interval. */ | |
1738 | uint32_t min_tx; | |
1739 | /** Profile name. */ | |
1740 | char profile[BFD_PROFILE_NAME_LEN]; | |
1741 | /** Peer BFD session */ | |
1742 | struct bfd_session_params *session; | |
1743 | } * bfd_config; | |
04b6bdc0 | 1744 | |
d62a17ae | 1745 | /* hostname and domainname advertised by host */ |
1746 | char *hostname; | |
1747 | char *domainname; | |
19df7279 | 1748 | |
2b31007c RZ |
1749 | /* Sender side AS path loop detection. */ |
1750 | bool as_path_loop_detection; | |
1751 | ||
ef56aee4 DA |
1752 | /* Extended Message Support */ |
1753 | uint16_t max_packet_size; | |
1754 | ||
7f7940e6 | 1755 | /* Conditional advertisement */ |
c385f82a MK |
1756 | bool advmap_config_change[AFI_MAX][SAFI_MAX]; |
1757 | bool advmap_table_change; | |
7f7940e6 | 1758 | |
4ab46701 AR |
1759 | /* set TCP max segment size */ |
1760 | uint32_t tcp_mss; | |
1761 | ||
8606be87 DA |
1762 | /* Long-lived Graceful Restart */ |
1763 | struct llgr_info llgr[AFI_MAX][SAFI_MAX]; | |
1764 | ||
aa24a36a DA |
1765 | bool shut_during_cfg; |
1766 | ||
a5c6a9b1 DA |
1767 | #define BGP_ATTR_MAX 255 |
1768 | /* Path attributes discard */ | |
1769 | bool discard_attrs[BGP_ATTR_MAX]; | |
1770 | ||
96244aca | 1771 | QOBJ_FIELDS; |
718e3744 | 1772 | }; |
96244aca | 1773 | DECLARE_QOBJ_TYPE(peer); |
718e3744 | 1774 | |
598ce6bd | 1775 | /* Inherit peer attribute from peer-group. */ |
e7103a96 PM |
1776 | #define PEER_ATTR_INHERIT(peer, group, attr) \ |
1777 | ((peer)->attr = (group)->conf->attr) | |
1778 | #define PEER_STR_ATTR_INHERIT(peer, group, attr, mt) \ | |
598ce6bd | 1779 | do { \ |
e1b36e13 | 1780 | XFREE(mt, (peer)->attr); \ |
e7103a96 PM |
1781 | if ((group)->conf->attr) \ |
1782 | (peer)->attr = XSTRDUP(mt, (group)->conf->attr); \ | |
598ce6bd PM |
1783 | else \ |
1784 | (peer)->attr = NULL; \ | |
1785 | } while (0) | |
a14810f4 PM |
1786 | #define PEER_SU_ATTR_INHERIT(peer, group, attr) \ |
1787 | do { \ | |
1788 | if ((peer)->attr) \ | |
1789 | sockunion_free((peer)->attr); \ | |
1790 | if ((group)->conf->attr) \ | |
1791 | (peer)->attr = sockunion_dup((group)->conf->attr); \ | |
1792 | else \ | |
1793 | (peer)->attr = NULL; \ | |
1794 | } while (0) | |
598ce6bd | 1795 | |
ad4cbda1 | 1796 | /* Check if suppress start/restart of sessions to peer. */ |
d62a17ae | 1797 | #define BGP_PEER_START_SUPPRESSED(P) \ |
aa24a36a DA |
1798 | (CHECK_FLAG((P)->flags, PEER_FLAG_SHUTDOWN) || \ |
1799 | CHECK_FLAG((P)->sflags, PEER_STATUS_PREFIX_OVERFLOW) || \ | |
1800 | CHECK_FLAG((P)->bgp->flags, BGP_FLAG_SHUTDOWN) || \ | |
1801 | (P)->shut_during_cfg) | |
ad4cbda1 | 1802 | |
a77e2f4b S |
1803 | #define PEER_ROUTE_ADV_DELAY(peer) \ |
1804 | (CHECK_FLAG(peer->thread_flags, PEER_THREAD_SUBGRP_ADV_DELAY)) | |
c208c586 | 1805 | |
0df7c91f PJ |
1806 | #define PEER_PASSWORD_MINLEN (1) |
1807 | #define PEER_PASSWORD_MAXLEN (80) | |
1808 | ||
718e3744 | 1809 | /* This structure's member directly points incoming packet data |
1810 | stream. */ | |
d62a17ae | 1811 | struct bgp_nlri { |
1812 | /* AFI. */ | |
a46a2e9b | 1813 | uint16_t afi; /* iana_afi_t */ |
718e3744 | 1814 | |
d62a17ae | 1815 | /* SAFI. */ |
a46a2e9b | 1816 | uint8_t safi; /* iana_safi_t */ |
718e3744 | 1817 | |
d62a17ae | 1818 | /* Pointer to NLRI byte stream. */ |
d7c0a89a | 1819 | uint8_t *nlri; |
718e3744 | 1820 | |
d62a17ae | 1821 | /* Length of whole NLRI. */ |
1822 | bgp_size_t length; | |
718e3744 | 1823 | }; |
1824 | ||
1825 | /* BGP versions. */ | |
1826 | #define BGP_VERSION_4 4 | |
718e3744 | 1827 | |
1828 | /* Default BGP port number. */ | |
1829 | #define BGP_PORT_DEFAULT 179 | |
1830 | ||
9f33eea3 DA |
1831 | /* Extended BGP Administrative Shutdown Communication */ |
1832 | #define BGP_ADMIN_SHUTDOWN_MSG_LEN 255 | |
1833 | ||
718e3744 | 1834 | /* BGP minimum message size. */ |
1835 | #define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10) | |
1836 | #define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4) | |
1837 | #define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2) | |
1838 | #define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0) | |
1839 | #define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4) | |
1840 | #define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3) | |
1841 | ||
1842 | /* BGP message types. */ | |
1843 | #define BGP_MSG_OPEN 1 | |
1844 | #define BGP_MSG_UPDATE 2 | |
1845 | #define BGP_MSG_NOTIFY 3 | |
1846 | #define BGP_MSG_KEEPALIVE 4 | |
1847 | #define BGP_MSG_ROUTE_REFRESH_NEW 5 | |
1848 | #define BGP_MSG_CAPABILITY 6 | |
1849 | #define BGP_MSG_ROUTE_REFRESH_OLD 128 | |
1850 | ||
1851 | /* BGP open optional parameter. */ | |
718e3744 | 1852 | #define BGP_OPEN_OPT_CAP 2 |
1853 | ||
1854 | /* BGP4 attribute type codes. */ | |
1855 | #define BGP_ATTR_ORIGIN 1 | |
1856 | #define BGP_ATTR_AS_PATH 2 | |
1857 | #define BGP_ATTR_NEXT_HOP 3 | |
1858 | #define BGP_ATTR_MULTI_EXIT_DISC 4 | |
1859 | #define BGP_ATTR_LOCAL_PREF 5 | |
1860 | #define BGP_ATTR_ATOMIC_AGGREGATE 6 | |
1861 | #define BGP_ATTR_AGGREGATOR 7 | |
1862 | #define BGP_ATTR_COMMUNITIES 8 | |
1863 | #define BGP_ATTR_ORIGINATOR_ID 9 | |
1864 | #define BGP_ATTR_CLUSTER_LIST 10 | |
718e3744 | 1865 | #define BGP_ATTR_MP_REACH_NLRI 14 |
1866 | #define BGP_ATTR_MP_UNREACH_NLRI 15 | |
1867 | #define BGP_ATTR_EXT_COMMUNITIES 16 | |
0b2aa3a0 PJ |
1868 | #define BGP_ATTR_AS4_PATH 17 |
1869 | #define BGP_ATTR_AS4_AGGREGATOR 18 | |
a21bd7a3 | 1870 | #define BGP_ATTR_PMSI_TUNNEL 22 |
f4c89855 | 1871 | #define BGP_ATTR_ENCAP 23 |
9a659715 | 1872 | #define BGP_ATTR_IPV6_EXT_COMMUNITIES 25 |
97a52c82 | 1873 | #define BGP_ATTR_AIGP 26 |
57d187bc | 1874 | #define BGP_ATTR_LARGE_COMMUNITIES 32 |
d864dd9e | 1875 | #define BGP_ATTR_OTC 35 |
c5a543b4 | 1876 | #define BGP_ATTR_PREFIX_SID 40 |
ef3e0d04 | 1877 | #define BGP_ATTR_SRTE_COLOR 51 |
1e20238a | 1878 | #ifdef ENABLE_BGP_VNC_ATTR |
65efcfce LB |
1879 | #define BGP_ATTR_VNC 255 |
1880 | #endif | |
718e3744 | 1881 | |
1882 | /* BGP update origin. */ | |
1883 | #define BGP_ORIGIN_IGP 0 | |
1884 | #define BGP_ORIGIN_EGP 1 | |
1885 | #define BGP_ORIGIN_INCOMPLETE 2 | |
229757f1 | 1886 | #define BGP_ORIGIN_UNSPECIFIED 255 |
718e3744 | 1887 | |
1888 | /* BGP notify message codes. */ | |
1889 | #define BGP_NOTIFY_HEADER_ERR 1 | |
1890 | #define BGP_NOTIFY_OPEN_ERR 2 | |
1891 | #define BGP_NOTIFY_UPDATE_ERR 3 | |
1892 | #define BGP_NOTIFY_HOLD_ERR 4 | |
1893 | #define BGP_NOTIFY_FSM_ERR 5 | |
1894 | #define BGP_NOTIFY_CEASE 6 | |
9af52ccf | 1895 | #define BGP_NOTIFY_ROUTE_REFRESH_ERR 7 |
718e3744 | 1896 | |
3893aeee DA |
1897 | /* Subcodes for BGP Finite State Machine Error */ |
1898 | #define BGP_NOTIFY_FSM_ERR_SUBCODE_UNSPECIFIC 0 | |
1899 | #define BGP_NOTIFY_FSM_ERR_SUBCODE_OPENSENT 1 | |
1900 | #define BGP_NOTIFY_FSM_ERR_SUBCODE_OPENCONFIRM 2 | |
1901 | #define BGP_NOTIFY_FSM_ERR_SUBCODE_ESTABLISHED 3 | |
1902 | ||
4b4e07d2 DT |
1903 | #define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0 |
1904 | ||
718e3744 | 1905 | /* BGP_NOTIFY_HEADER_ERR sub codes. */ |
1906 | #define BGP_NOTIFY_HEADER_NOT_SYNC 1 | |
1907 | #define BGP_NOTIFY_HEADER_BAD_MESLEN 2 | |
1908 | #define BGP_NOTIFY_HEADER_BAD_MESTYPE 3 | |
718e3744 | 1909 | |
1910 | /* BGP_NOTIFY_OPEN_ERR sub codes. */ | |
14051b36 | 1911 | #define BGP_NOTIFY_OPEN_MALFORMED_ATTR 0 |
718e3744 | 1912 | #define BGP_NOTIFY_OPEN_UNSUP_VERSION 1 |
1913 | #define BGP_NOTIFY_OPEN_BAD_PEER_AS 2 | |
1914 | #define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3 | |
1915 | #define BGP_NOTIFY_OPEN_UNSUP_PARAM 4 | |
718e3744 | 1916 | #define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6 |
1917 | #define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7 | |
d864dd9e | 1918 | #define BGP_NOTIFY_OPEN_ROLE_MISMATCH 11 |
718e3744 | 1919 | |
1920 | /* BGP_NOTIFY_UPDATE_ERR sub codes. */ | |
1921 | #define BGP_NOTIFY_UPDATE_MAL_ATTR 1 | |
1922 | #define BGP_NOTIFY_UPDATE_UNREC_ATTR 2 | |
1923 | #define BGP_NOTIFY_UPDATE_MISS_ATTR 3 | |
1924 | #define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4 | |
1925 | #define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5 | |
1926 | #define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6 | |
718e3744 | 1927 | #define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8 |
1928 | #define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9 | |
1929 | #define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10 | |
1930 | #define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11 | |
718e3744 | 1931 | |
4b4e07d2 | 1932 | /* BGP_NOTIFY_CEASE sub codes (RFC 4486). */ |
718e3744 | 1933 | #define BGP_NOTIFY_CEASE_MAX_PREFIX 1 |
1934 | #define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2 | |
1935 | #define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3 | |
1936 | #define BGP_NOTIFY_CEASE_ADMIN_RESET 4 | |
1937 | #define BGP_NOTIFY_CEASE_CONNECT_REJECT 5 | |
1938 | #define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6 | |
545acafb | 1939 | #define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7 |
1940 | #define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8 | |
eea685b6 | 1941 | #define BGP_NOTIFY_CEASE_HARD_RESET 9 |
aebe2e37 | 1942 | #define BGP_NOTIFY_CEASE_BFD_DOWN 10 |
718e3744 | 1943 | |
9af52ccf DA |
1944 | /* BGP_NOTIFY_ROUTE_REFRESH_ERR sub codes (RFC 7313). */ |
1945 | #define BGP_NOTIFY_ROUTE_REFRESH_INVALID_MSG_LEN 1 | |
1946 | ||
1947 | /* BGP route refresh optional subtypes. */ | |
1948 | #define BGP_ROUTE_REFRESH_NORMAL 0 | |
1949 | #define BGP_ROUTE_REFRESH_BORR 1 | |
1950 | #define BGP_ROUTE_REFRESH_EORR 2 | |
718e3744 | 1951 | |
718e3744 | 1952 | /* BGP timers default value. */ |
5ca5f1c8 | 1953 | #define BGP_INIT_START_TIMER 1 |
5d5393b9 DL |
1954 | /* The following 3 are RFC defaults that are overridden in bgp_vty.c with |
1955 | * version-/profile-specific values. The values here do not matter, they only | |
1956 | * exist to provide a clear layering separation between core and CLI. | |
1957 | */ | |
1958 | #define BGP_DEFAULT_HOLDTIME 180 | |
1959 | #define BGP_DEFAULT_KEEPALIVE 60 | |
1960 | #define BGP_DEFAULT_CONNECT_RETRY 120 | |
1961 | ||
12179ba3 | 1962 | #define BGP_DEFAULT_EBGP_ROUTEADV 0 |
1670355a | 1963 | #define BGP_DEFAULT_IBGP_ROUTEADV 0 |
718e3744 | 1964 | |
6c537a18 DS |
1965 | /* BGP RFC 4271 DelayOpenTime default value */ |
1966 | #define BGP_DEFAULT_DELAYOPEN 120 | |
1967 | ||
718e3744 | 1968 | /* BGP default local preference. */ |
1969 | #define BGP_DEFAULT_LOCAL_PREF 100 | |
1970 | ||
7f323236 DW |
1971 | /* BGP local-preference to send when 'bgp graceful-shutdown' |
1972 | * is configured */ | |
1973 | #define BGP_GSHUT_LOCAL_PREF 0 | |
1974 | ||
3f9c7369 DS |
1975 | /* BGP default subgroup packet queue max . */ |
1976 | #define BGP_DEFAULT_SUBGROUP_PKT_QUEUE_MAX 40 | |
1977 | ||
538621f2 | 1978 | /* BGP graceful restart */ |
1979 | #define BGP_DEFAULT_RESTART_TIME 120 | |
1980 | #define BGP_DEFAULT_STALEPATH_TIME 360 | |
cfd47646 | 1981 | #define BGP_DEFAULT_SELECT_DEFERRAL_TIME 360 |
2d3dd828 | 1982 | #define BGP_DEFAULT_RIB_STALE_TIME 500 |
c208c586 | 1983 | #define BGP_DEFAULT_UPDATE_ADVERTISEMENT_TIME 1 |
538621f2 | 1984 | |
8606be87 | 1985 | /* BGP Long-lived Graceful Restart */ |
7f8a9a24 | 1986 | #define BGP_DEFAULT_LLGR_STALE_TIME 0 |
8606be87 | 1987 | |
718e3744 | 1988 | /* BGP uptime string length. */ |
1989 | #define BGP_UPTIME_LEN 25 | |
1990 | ||
1991 | /* Default configuration settings for bgpd. */ | |
1992 | #define BGP_VTY_PORT 2605 | |
718e3744 | 1993 | #define BGP_DEFAULT_CONFIG "bgpd.conf" |
1994 | ||
f14e6fdb DS |
1995 | /* BGP Dynamic Neighbors feature */ |
1996 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_DEFAULT 100 | |
1997 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_MIN 1 | |
5b1b6b8b | 1998 | #define BGP_DYNAMIC_NEIGHBORS_LIMIT_MAX 65535 |
f14e6fdb | 1999 | |
97a52c82 DA |
2000 | /* BGP AIGP */ |
2001 | #define BGP_AIGP_TLV_RESERVED 0 /* AIGP Reserved */ | |
2002 | #define BGP_AIGP_TLV_METRIC 1 /* AIGP Metric */ | |
2003 | #define BGP_AIGP_TLV_METRIC_LEN 11 | |
2004 | #define BGP_AIGP_TLV_METRIC_MAX 0xffffffffffffffffULL | |
2005 | #define BGP_AIGP_TLV_METRIC_DESC "Accumulated IGP Metric" | |
2006 | ||
718e3744 | 2007 | /* Flag for peer_clear_soft(). */ |
d62a17ae | 2008 | enum bgp_clear_type { |
2009 | BGP_CLEAR_SOFT_NONE, | |
2010 | BGP_CLEAR_SOFT_OUT, | |
2011 | BGP_CLEAR_SOFT_IN, | |
2012 | BGP_CLEAR_SOFT_BOTH, | |
3cb14f26 DS |
2013 | BGP_CLEAR_SOFT_IN_ORF_PREFIX, |
2014 | BGP_CLEAR_MESSAGE_STATS | |
718e3744 | 2015 | }; |
2016 | ||
2017 | /* Macros. */ | |
424ab01d | 2018 | #define BGP_INPUT(P) ((P)->curr) |
2d34fb80 | 2019 | #define BGP_INPUT_PNT(P) (stream_pnt(BGP_INPUT(P))) |
d62a17ae | 2020 | #define BGP_IS_VALID_STATE_FOR_NOTIF(S) \ |
2021 | (((S) == OpenSent) || ((S) == OpenConfirm) || ((S) == Established)) | |
718e3744 | 2022 | |
718e3744 | 2023 | /* BGP error codes. */ |
4b7e23e9 DS |
2024 | enum bgp_create_error_code { |
2025 | BGP_SUCCESS = 0, | |
2026 | BGP_CREATED = 1, | |
2027 | BGP_ERR_INVALID_VALUE = -1, | |
2028 | BGP_ERR_INVALID_FLAG = -2, | |
2029 | BGP_ERR_INVALID_AS = -3, | |
e4aa4745 DS |
2030 | BGP_ERR_PEER_GROUP_MEMBER = -4, |
2031 | BGP_ERR_PEER_GROUP_NO_REMOTE_AS = -5, | |
2032 | BGP_ERR_PEER_GROUP_CANT_CHANGE = -6, | |
2033 | BGP_ERR_PEER_GROUP_MISMATCH = -7, | |
2034 | BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT = -8, | |
2035 | BGP_ERR_AS_MISMATCH = -9, | |
2036 | BGP_ERR_PEER_FLAG_CONFLICT = -10, | |
2037 | BGP_ERR_PEER_GROUP_SHUTDOWN = -11, | |
2038 | BGP_ERR_PEER_FILTER_CONFLICT = -12, | |
2039 | BGP_ERR_NOT_INTERNAL_PEER = -13, | |
2040 | BGP_ERR_REMOVE_PRIVATE_AS = -14, | |
2041 | BGP_ERR_AF_UNCONFIGURED = -15, | |
2042 | BGP_ERR_SOFT_RECONFIG_UNCONFIGURED = -16, | |
2043 | BGP_ERR_INSTANCE_MISMATCH = -17, | |
e4aa4745 DS |
2044 | BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS = -19, |
2045 | BGP_ERR_TCPSIG_FAILED = -20, | |
2046 | BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK = -21, | |
2047 | BGP_ERR_NO_IBGP_WITH_TTLHACK = -22, | |
2048 | BGP_ERR_NO_INTERFACE_CONFIG = -23, | |
e4aa4745 DS |
2049 | BGP_ERR_AS_OVERRIDE = -25, |
2050 | BGP_ERR_INVALID_DYNAMIC_NEIGHBORS_LIMIT = -26, | |
2051 | BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_EXISTS = -27, | |
2052 | BGP_ERR_DYNAMIC_NEIGHBORS_RANGE_NOT_FOUND = -28, | |
2053 | BGP_ERR_INVALID_FOR_DYNAMIC_PEER = -29, | |
2054 | BGP_ERR_INVALID_FOR_DIRECT_PEER = -30, | |
2055 | BGP_ERR_PEER_SAFI_CONFLICT = -31, | |
4b7e23e9 DS |
2056 | |
2057 | /* BGP GR ERRORS */ | |
e4aa4745 DS |
2058 | BGP_ERR_GR_INVALID_CMD = -32, |
2059 | BGP_ERR_GR_OPERATION_FAILED = -33, | |
2060 | BGP_GR_NO_OPERATION = -34, | |
d864dd9e EB |
2061 | |
2062 | /*BGP Open Policy ERRORS */ | |
2063 | BGP_ERR_INVALID_ROLE_NAME = -35, | |
cfd01fc0 | 2064 | BGP_ERR_INVALID_INTERNAL_ROLE = -36 |
4b7e23e9 | 2065 | }; |
b0965c44 | 2066 | |
3f9c7369 DS |
2067 | /* |
2068 | * Enumeration of different policy kinds a peer can be configured with. | |
2069 | */ | |
d54f55f2 | 2070 | enum bgp_policy_type { |
d62a17ae | 2071 | BGP_POLICY_ROUTE_MAP, |
2072 | BGP_POLICY_FILTER_LIST, | |
2073 | BGP_POLICY_PREFIX_LIST, | |
2074 | BGP_POLICY_DISTRIBUTE_LIST, | |
d54f55f2 | 2075 | }; |
3f9c7369 | 2076 | |
dcc68b5e MS |
2077 | /* peer_flag_change_type. */ |
2078 | enum peer_change_type { | |
2079 | peer_change_none, | |
2080 | peer_change_reset, | |
2081 | peer_change_reset_in, | |
2082 | peer_change_reset_out, | |
2083 | }; | |
2084 | ||
718e3744 | 2085 | extern struct bgp_master *bm; |
37fe7731 | 2086 | extern unsigned int multipath_num; |
718e3744 | 2087 | |
718e3744 | 2088 | /* Prototypes. */ |
d62a17ae | 2089 | extern void bgp_terminate(void); |
2090 | extern void bgp_reset(void); | |
d62a17ae | 2091 | extern void bgp_zclient_reset(void); |
d62a17ae | 2092 | extern struct bgp *bgp_get_default(void); |
2093 | extern struct bgp *bgp_lookup(as_t, const char *); | |
2094 | extern struct bgp *bgp_lookup_by_name(const char *); | |
2095 | extern struct bgp *bgp_lookup_by_vrf_id(vrf_id_t); | |
e2f3a930 T |
2096 | extern struct bgp *bgp_get_evpn(void); |
2097 | extern void bgp_set_evpn(struct bgp *bgp); | |
d62a17ae | 2098 | extern struct peer *peer_lookup(struct bgp *, union sockunion *); |
2099 | extern struct peer *peer_lookup_by_conf_if(struct bgp *, const char *); | |
04b6bdc0 | 2100 | extern struct peer *peer_lookup_by_hostname(struct bgp *, const char *); |
d62a17ae | 2101 | extern void bgp_peer_conf_if_to_su_update(struct peer *); |
ffd0c037 | 2102 | extern int peer_group_listen_range_del(struct peer_group *, struct prefix *); |
d62a17ae | 2103 | extern struct peer_group *peer_group_lookup(struct bgp *, const char *); |
2104 | extern struct peer_group *peer_group_get(struct bgp *, const char *); | |
2105 | extern struct peer *peer_create_bind_dynamic_neighbor(struct bgp *, | |
2106 | union sockunion *, | |
2107 | struct peer_group *); | |
2108 | extern struct prefix * | |
2109 | peer_group_lookup_dynamic_neighbor_range(struct peer_group *, struct prefix *); | |
2110 | extern struct peer_group *peer_group_lookup_dynamic_neighbor(struct bgp *, | |
2111 | struct prefix *, | |
2112 | struct prefix **); | |
2113 | extern struct peer *peer_lookup_dynamic_neighbor(struct bgp *, | |
2114 | union sockunion *); | |
28066f4b DS |
2115 | |
2116 | /* | |
2117 | * Peers are incredibly easy to memory leak | |
2118 | * due to the various ways that they are actually used | |
2119 | * Provide some functionality to debug locks and unlocks | |
2120 | */ | |
2121 | extern struct peer *peer_lock_with_caller(const char *, struct peer *); | |
2122 | extern struct peer *peer_unlock_with_caller(const char *, struct peer *); | |
2123 | #define peer_unlock(A) peer_unlock_with_caller(__FUNCTION__, (A)) | |
2124 | #define peer_lock(B) peer_lock_with_caller(__FUNCTION__, (B)) | |
2125 | ||
3061acc2 DA |
2126 | extern enum bgp_peer_sort peer_sort(struct peer *peer); |
2127 | extern enum bgp_peer_sort peer_sort_lookup(struct peer *peer); | |
bf0d28dc | 2128 | |
3dc339cd DA |
2129 | extern bool peer_active(struct peer *); |
2130 | extern bool peer_active_nego(struct peer *); | |
10711563 DA |
2131 | extern bool peer_afc_received(struct peer *peer); |
2132 | extern bool peer_afc_advertised(struct peer *peer); | |
d62a17ae | 2133 | extern void bgp_recalculate_all_bestpaths(struct bgp *bgp); |
534db980 DS |
2134 | extern struct peer *peer_create(union sockunion *su, const char *conf_if, |
2135 | struct bgp *bgp, as_t local_as, as_t remote_as, | |
2136 | int as_type, struct peer_group *group, | |
2137 | bool config_node); | |
d62a17ae | 2138 | extern struct peer *peer_create_accept(struct bgp *); |
2139 | extern void peer_xfer_config(struct peer *dst, struct peer *src); | |
94d4c685 DS |
2140 | extern char *peer_uptime(time_t uptime2, char *buf, size_t len, bool use_json, |
2141 | json_object *json); | |
856ca177 | 2142 | |
d62a17ae | 2143 | extern int bgp_config_write(struct vty *); |
6b0655a2 | 2144 | |
85e9cd9a AMR |
2145 | extern void bgp_master_init(struct thread_master *master, const int buffer_size, |
2146 | struct list *addresses); | |
718e3744 | 2147 | |
f533be73 | 2148 | extern void bgp_init(unsigned short instance); |
419dfe6a | 2149 | extern void bgp_pthreads_run(void); |
2d4ee774 | 2150 | extern void bgp_pthreads_finish(void); |
d62a17ae | 2151 | extern void bgp_route_map_init(void); |
2152 | extern void bgp_session_reset(struct peer *); | |
718e3744 | 2153 | |
d62a17ae | 2154 | extern int bgp_option_set(int); |
2155 | extern int bgp_option_unset(int); | |
2156 | extern int bgp_option_check(int); | |
718e3744 | 2157 | |
c163f297 DS |
2158 | /* set the bgp no-rib option during runtime and remove installed routes */ |
2159 | extern void bgp_option_norib_set_runtime(void); | |
2160 | ||
2161 | /* unset the bgp no-rib option during runtime and reset all peers */ | |
2162 | extern void bgp_option_norib_unset_runtime(void); | |
2163 | ||
d62a17ae | 2164 | extern int bgp_get(struct bgp **, as_t *, const char *, enum bgp_instance_type); |
2165 | extern void bgp_instance_up(struct bgp *); | |
2166 | extern void bgp_instance_down(struct bgp *); | |
2167 | extern int bgp_delete(struct bgp *); | |
718e3744 | 2168 | |
e5619c28 PG |
2169 | extern int bgp_handle_socket(struct bgp *bgp, struct vrf *vrf, |
2170 | vrf_id_t old_vrf_id, bool create); | |
2171 | ||
d62a17ae | 2172 | extern void bgp_router_id_zebra_bump(vrf_id_t, const struct prefix *); |
3dc339cd | 2173 | extern void bgp_router_id_static_set(struct bgp *, struct in_addr); |
718e3744 | 2174 | |
9acb67cb | 2175 | extern void bm_wait_for_fib_set(bool set); |
c208c586 | 2176 | extern void bgp_suppress_fib_pending_set(struct bgp *bgp, bool set); |
0b1fb52c DA |
2177 | extern void bgp_cluster_id_set(struct bgp *bgp, struct in_addr *cluster_id); |
2178 | extern void bgp_cluster_id_unset(struct bgp *bgp); | |
718e3744 | 2179 | |
0b1fb52c DA |
2180 | extern void bgp_confederation_id_set(struct bgp *bgp, as_t as); |
2181 | extern void bgp_confederation_id_unset(struct bgp *bgp); | |
3dc339cd | 2182 | extern bool bgp_confederation_peers_check(struct bgp *, as_t); |
718e3744 | 2183 | |
0b1fb52c DA |
2184 | extern void bgp_confederation_peers_add(struct bgp *bgp, as_t as); |
2185 | extern void bgp_confederation_peers_remove(struct bgp *bgp, as_t as); | |
718e3744 | 2186 | |
3dc339cd | 2187 | extern void bgp_timers_set(struct bgp *, uint32_t keepalive, uint32_t holdtime, |
6c537a18 | 2188 | uint32_t connect_retry, uint32_t delayopen); |
3dc339cd | 2189 | extern void bgp_timers_unset(struct bgp *); |
718e3744 | 2190 | |
0b1fb52c DA |
2191 | extern void bgp_default_local_preference_set(struct bgp *bgp, |
2192 | uint32_t local_pref); | |
2193 | extern void bgp_default_local_preference_unset(struct bgp *bgp); | |
718e3744 | 2194 | |
0b1fb52c DA |
2195 | extern void bgp_default_subgroup_pkt_queue_max_set(struct bgp *bgp, |
2196 | uint32_t queue_size); | |
2197 | extern void bgp_default_subgroup_pkt_queue_max_unset(struct bgp *bgp); | |
3f9c7369 | 2198 | |
0b1fb52c DA |
2199 | extern void bgp_listen_limit_set(struct bgp *bgp, int listen_limit); |
2200 | extern void bgp_listen_limit_unset(struct bgp *bgp); | |
f14e6fdb | 2201 | |
3dc339cd DA |
2202 | extern bool bgp_update_delay_active(struct bgp *); |
2203 | extern bool bgp_update_delay_configured(struct bgp *); | |
0b1fb52c | 2204 | extern bool bgp_afi_safi_peer_exists(struct bgp *bgp, afi_t afi, safi_t safi); |
d62a17ae | 2205 | extern void peer_as_change(struct peer *, as_t, int); |
2206 | extern int peer_remote_as(struct bgp *, union sockunion *, const char *, as_t *, | |
e84c59af | 2207 | int); |
d62a17ae | 2208 | extern int peer_group_remote_as(struct bgp *, const char *, as_t *, int); |
2209 | extern int peer_delete(struct peer *peer); | |
3dc339cd | 2210 | extern void peer_notify_unconfig(struct peer *peer); |
d62a17ae | 2211 | extern int peer_group_delete(struct peer_group *); |
2212 | extern int peer_group_remote_as_delete(struct peer_group *); | |
f14e6fdb | 2213 | extern int peer_group_listen_range_add(struct peer_group *, struct prefix *); |
3dc339cd | 2214 | extern void peer_group_notify_unconfig(struct peer_group *group); |
718e3744 | 2215 | |
d62a17ae | 2216 | extern int peer_activate(struct peer *, afi_t, safi_t); |
2217 | extern int peer_deactivate(struct peer *, afi_t, safi_t); | |
718e3744 | 2218 | |
d62a17ae | 2219 | extern int peer_group_bind(struct bgp *, union sockunion *, struct peer *, |
2220 | struct peer_group *, as_t *); | |
718e3744 | 2221 | |
83194f39 DA |
2222 | extern int peer_flag_set(struct peer *peer, uint64_t flag); |
2223 | extern int peer_flag_unset(struct peer *peer, uint64_t flag); | |
2224 | extern void peer_flag_inherit(struct peer *peer, uint64_t flag); | |
718e3744 | 2225 | |
da5e1a58 DA |
2226 | extern int peer_af_flag_set(struct peer *peer, afi_t afi, safi_t safi, |
2227 | uint64_t flag); | |
2228 | extern int peer_af_flag_unset(struct peer *peer, afi_t afi, safi_t safi, | |
2229 | uint64_t flag); | |
d7c0a89a | 2230 | extern int peer_af_flag_check(struct peer *, afi_t, safi_t, uint32_t); |
cf9ac8bf | 2231 | extern void peer_af_flag_inherit(struct peer *peer, afi_t afi, safi_t safi, |
da5e1a58 | 2232 | uint64_t flag); |
dcc68b5e MS |
2233 | extern void peer_change_action(struct peer *peer, afi_t afi, safi_t safi, |
2234 | enum peer_change_type type); | |
718e3744 | 2235 | |
d62a17ae | 2236 | extern int peer_ebgp_multihop_set(struct peer *, int); |
2237 | extern int peer_ebgp_multihop_unset(struct peer *); | |
2238 | extern int is_ebgp_multihop_configured(struct peer *peer); | |
718e3744 | 2239 | |
8f2d6021 | 2240 | extern int peer_role_set(struct peer *peer, uint8_t role, bool strict_mode); |
d864dd9e EB |
2241 | extern int peer_role_unset(struct peer *peer); |
2242 | ||
3dc339cd DA |
2243 | extern void peer_description_set(struct peer *, const char *); |
2244 | extern void peer_description_unset(struct peer *); | |
718e3744 | 2245 | |
d62a17ae | 2246 | extern int peer_update_source_if_set(struct peer *, const char *); |
0b1fb52c DA |
2247 | extern void peer_update_source_addr_set(struct peer *peer, |
2248 | const union sockunion *su); | |
2249 | extern void peer_update_source_unset(struct peer *peer); | |
718e3744 | 2250 | |
1de27621 DA |
2251 | extern int peer_default_originate_set(struct peer *peer, afi_t afi, safi_t safi, |
2252 | const char *rmap, | |
2253 | struct route_map *route_map); | |
d62a17ae | 2254 | extern int peer_default_originate_unset(struct peer *, afi_t, safi_t); |
d1adb448 PG |
2255 | extern void bgp_tcp_keepalive_set(struct bgp *bgp, uint16_t idle, |
2256 | uint16_t interval, uint16_t probes); | |
2257 | extern void bgp_tcp_keepalive_unset(struct bgp *bgp); | |
718e3744 | 2258 | |
3dc339cd DA |
2259 | extern void peer_port_set(struct peer *, uint16_t); |
2260 | extern void peer_port_unset(struct peer *); | |
718e3744 | 2261 | |
d7c0a89a | 2262 | extern int peer_weight_set(struct peer *, afi_t, safi_t, uint16_t); |
d62a17ae | 2263 | extern int peer_weight_unset(struct peer *, afi_t, safi_t); |
718e3744 | 2264 | |
d7c0a89a QY |
2265 | extern int peer_timers_set(struct peer *, uint32_t keepalive, |
2266 | uint32_t holdtime); | |
d62a17ae | 2267 | extern int peer_timers_unset(struct peer *); |
718e3744 | 2268 | |
d7c0a89a | 2269 | extern int peer_timers_connect_set(struct peer *, uint32_t); |
d62a17ae | 2270 | extern int peer_timers_connect_unset(struct peer *); |
718e3744 | 2271 | |
d7c0a89a | 2272 | extern int peer_advertise_interval_set(struct peer *, uint32_t); |
d62a17ae | 2273 | extern int peer_advertise_interval_unset(struct peer *); |
718e3744 | 2274 | |
6c537a18 DS |
2275 | extern int peer_timers_delayopen_set(struct peer *peer, uint32_t delayopen); |
2276 | extern int peer_timers_delayopen_unset(struct peer *peer); | |
2277 | ||
d62a17ae | 2278 | extern void peer_interface_set(struct peer *, const char *); |
2279 | extern void peer_interface_unset(struct peer *); | |
718e3744 | 2280 | |
d62a17ae | 2281 | extern int peer_distribute_set(struct peer *, afi_t, safi_t, int, const char *); |
2282 | extern int peer_distribute_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 2283 | |
d62a17ae | 2284 | extern int peer_allowas_in_set(struct peer *, afi_t, safi_t, int, int); |
2285 | extern int peer_allowas_in_unset(struct peer *, afi_t, safi_t); | |
718e3744 | 2286 | |
f4b8ec07 CS |
2287 | extern int peer_local_as_set(struct peer *, as_t, bool no_prepend, |
2288 | bool replace_as); | |
d62a17ae | 2289 | extern int peer_local_as_unset(struct peer *); |
718e3744 | 2290 | |
d62a17ae | 2291 | extern int peer_prefix_list_set(struct peer *, afi_t, safi_t, int, |
2292 | const char *); | |
2293 | extern int peer_prefix_list_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 2294 | |
d62a17ae | 2295 | extern int peer_aslist_set(struct peer *, afi_t, safi_t, int, const char *); |
2296 | extern int peer_aslist_unset(struct peer *, afi_t, safi_t, int); | |
718e3744 | 2297 | |
1de27621 DA |
2298 | extern int peer_route_map_set(struct peer *peer, afi_t afi, safi_t safi, int, |
2299 | const char *name, struct route_map *route_map); | |
d62a17ae | 2300 | extern int peer_route_map_unset(struct peer *, afi_t, safi_t, int); |
718e3744 | 2301 | |
1de27621 DA |
2302 | extern int peer_unsuppress_map_set(struct peer *peer, afi_t afi, safi_t safi, |
2303 | const char *name, | |
2304 | struct route_map *route_map); | |
0df7c91f | 2305 | |
7f7940e6 MK |
2306 | extern int peer_advertise_map_set(struct peer *peer, afi_t afi, safi_t safi, |
2307 | const char *advertise_name, | |
2308 | struct route_map *advertise_map, | |
cf2ad4d8 MK |
2309 | const char *condition_name, |
2310 | struct route_map *condition_map, | |
2311 | bool condition); | |
7f7940e6 | 2312 | |
d62a17ae | 2313 | extern int peer_password_set(struct peer *, const char *); |
2314 | extern int peer_password_unset(struct peer *); | |
0df7c91f | 2315 | |
d62a17ae | 2316 | extern int peer_unsuppress_map_unset(struct peer *, afi_t, safi_t); |
718e3744 | 2317 | |
7f7940e6 MK |
2318 | extern int peer_advertise_map_unset(struct peer *peer, afi_t afi, safi_t safi, |
2319 | const char *advertise_name, | |
2320 | struct route_map *advertise_map, | |
cf2ad4d8 MK |
2321 | const char *condition_name, |
2322 | struct route_map *condition_map, | |
2323 | bool condition); | |
7f7940e6 | 2324 | |
d7c0a89a | 2325 | extern int peer_maximum_prefix_set(struct peer *, afi_t, safi_t, uint32_t, |
9cbd06e0 | 2326 | uint8_t, int, uint16_t, bool force); |
d62a17ae | 2327 | extern int peer_maximum_prefix_unset(struct peer *, afi_t, safi_t); |
718e3744 | 2328 | |
d0bf49ec LS |
2329 | extern void peer_maximum_prefix_out_refresh_routes(struct peer *peer, afi_t afi, |
2330 | safi_t safi); | |
80444d30 LS |
2331 | extern int peer_maximum_prefix_out_set(struct peer *peer, afi_t afi, |
2332 | safi_t safi, uint32_t max); | |
2333 | extern int peer_maximum_prefix_out_unset(struct peer *peer, afi_t afi, | |
2334 | safi_t safi); | |
d0bf49ec | 2335 | |
d62a17ae | 2336 | extern int peer_clear(struct peer *, struct listnode **); |
2337 | extern int peer_clear_soft(struct peer *, afi_t, safi_t, enum bgp_clear_type); | |
93406d87 | 2338 | |
d62a17ae | 2339 | extern int peer_ttl_security_hops_set(struct peer *, int); |
2340 | extern int peer_ttl_security_hops_unset(struct peer *); | |
fa411a21 | 2341 | |
3dc339cd DA |
2342 | extern void peer_tx_shutdown_message_set(struct peer *, const char *msg); |
2343 | extern void peer_tx_shutdown_message_unset(struct peer *); | |
73d70fa6 | 2344 | |
cc9f21da | 2345 | extern void bgp_route_map_update_timer(struct thread *thread); |
8f2d6021 | 2346 | extern const char *bgp_get_name_by_role(uint8_t role); |
d864dd9e | 2347 | |
518f0eb1 | 2348 | extern void bgp_route_map_terminate(void); |
16286195 | 2349 | |
d62a17ae | 2350 | extern int peer_cmp(struct peer *p1, struct peer *p2); |
3f9c7369 | 2351 | |
5c525538 | 2352 | extern int bgp_map_afi_safi_iana2int(iana_afi_t pkt_afi, iana_safi_t pkt_safi, |
d62a17ae | 2353 | afi_t *afi, safi_t *safi); |
2354 | extern int bgp_map_afi_safi_int2iana(afi_t afi, safi_t safi, | |
a4d82a8a PZ |
2355 | iana_afi_t *pkt_afi, |
2356 | iana_safi_t *pkt_safi); | |
9cabb64b | 2357 | |
d62a17ae | 2358 | extern struct peer_af *peer_af_create(struct peer *, afi_t, safi_t); |
2359 | extern struct peer_af *peer_af_find(struct peer *, afi_t, safi_t); | |
2360 | extern int peer_af_delete(struct peer *, afi_t, safi_t); | |
3f9c7369 | 2361 | |
736b68f3 | 2362 | extern void bgp_shutdown_enable(struct bgp *bgp, const char *msg); |
9cf59432 DS |
2363 | extern void bgp_shutdown_disable(struct bgp *bgp); |
2364 | ||
ffd0c037 | 2365 | extern void bgp_close(void); |
92375c91 | 2366 | extern void bgp_free(struct bgp *); |
b0965c44 | 2367 | void bgp_gr_apply_running_config(void); |
2368 | ||
2369 | /* BGP GR */ | |
b0965c44 | 2370 | int bgp_global_gr_init(struct bgp *bgp); |
2371 | int bgp_peer_gr_init(struct peer *peer); | |
92375c91 | 2372 | |
2d3dd828 | 2373 | |
36235319 QY |
2374 | #define BGP_GR_ROUTER_DETECT_AND_SEND_CAPABILITY_TO_ZEBRA(_bgp, _peer_list) \ |
2375 | do { \ | |
2376 | struct peer *peer_loop; \ | |
2377 | bool gr_router_detected = false; \ | |
2378 | struct listnode *node = {0}; \ | |
2379 | for (ALL_LIST_ELEMENTS_RO(_peer_list, node, peer_loop)) { \ | |
2380 | if (CHECK_FLAG(peer_loop->flags, \ | |
2381 | PEER_FLAG_GRACEFUL_RESTART)) \ | |
2382 | gr_router_detected = true; \ | |
2383 | } \ | |
2384 | if (gr_router_detected \ | |
2385 | && _bgp->present_zebra_gr_state == ZEBRA_GR_DISABLE) { \ | |
2386 | bgp_zebra_send_capabilities(_bgp, false); \ | |
2387 | } else if (!gr_router_detected \ | |
2388 | && _bgp->present_zebra_gr_state \ | |
2389 | == ZEBRA_GR_ENABLE) { \ | |
2390 | bgp_zebra_send_capabilities(_bgp, true); \ | |
2391 | } \ | |
2392 | } while (0) | |
2d3dd828 | 2393 | |
92375c91 JB |
2394 | static inline struct bgp *bgp_lock(struct bgp *bgp) |
2395 | { | |
2396 | bgp->lock++; | |
2397 | return bgp; | |
2398 | } | |
2399 | ||
2400 | static inline void bgp_unlock(struct bgp *bgp) | |
2401 | { | |
2402 | assert(bgp->lock > 0); | |
2403 | if (--bgp->lock == 0) | |
2404 | bgp_free(bgp); | |
2405 | } | |
ffd0c037 | 2406 | |
d62a17ae | 2407 | static inline int afindex(afi_t afi, safi_t safi) |
3f9c7369 | 2408 | { |
d62a17ae | 2409 | switch (afi) { |
2410 | case AFI_IP: | |
2411 | switch (safi) { | |
2412 | case SAFI_UNICAST: | |
2413 | return BGP_AF_IPV4_UNICAST; | |
d62a17ae | 2414 | case SAFI_MULTICAST: |
2415 | return BGP_AF_IPV4_MULTICAST; | |
d62a17ae | 2416 | case SAFI_LABELED_UNICAST: |
2417 | return BGP_AF_IPV4_LBL_UNICAST; | |
d62a17ae | 2418 | case SAFI_MPLS_VPN: |
2419 | return BGP_AF_IPV4_VPN; | |
d62a17ae | 2420 | case SAFI_ENCAP: |
2421 | return BGP_AF_IPV4_ENCAP; | |
7c40bf39 | 2422 | case SAFI_FLOWSPEC: |
2423 | return BGP_AF_IPV4_FLOWSPEC; | |
58cf0823 DS |
2424 | case SAFI_EVPN: |
2425 | case SAFI_UNSPEC: | |
2426 | case SAFI_MAX: | |
d62a17ae | 2427 | return BGP_AF_MAX; |
d62a17ae | 2428 | } |
2429 | break; | |
2430 | case AFI_IP6: | |
2431 | switch (safi) { | |
2432 | case SAFI_UNICAST: | |
2433 | return BGP_AF_IPV6_UNICAST; | |
d62a17ae | 2434 | case SAFI_MULTICAST: |
2435 | return BGP_AF_IPV6_MULTICAST; | |
d62a17ae | 2436 | case SAFI_LABELED_UNICAST: |
2437 | return BGP_AF_IPV6_LBL_UNICAST; | |
d62a17ae | 2438 | case SAFI_MPLS_VPN: |
2439 | return BGP_AF_IPV6_VPN; | |
d62a17ae | 2440 | case SAFI_ENCAP: |
2441 | return BGP_AF_IPV6_ENCAP; | |
7c40bf39 | 2442 | case SAFI_FLOWSPEC: |
2443 | return BGP_AF_IPV6_FLOWSPEC; | |
58cf0823 DS |
2444 | case SAFI_EVPN: |
2445 | case SAFI_UNSPEC: | |
2446 | case SAFI_MAX: | |
d62a17ae | 2447 | return BGP_AF_MAX; |
d62a17ae | 2448 | } |
2449 | break; | |
2450 | case AFI_L2VPN: | |
2451 | switch (safi) { | |
2452 | case SAFI_EVPN: | |
2453 | return BGP_AF_L2VPN_EVPN; | |
58cf0823 DS |
2454 | case SAFI_UNICAST: |
2455 | case SAFI_MULTICAST: | |
2456 | case SAFI_LABELED_UNICAST: | |
2457 | case SAFI_MPLS_VPN: | |
2458 | case SAFI_ENCAP: | |
2459 | case SAFI_FLOWSPEC: | |
2460 | case SAFI_UNSPEC: | |
2461 | case SAFI_MAX: | |
d62a17ae | 2462 | return BGP_AF_MAX; |
d62a17ae | 2463 | } |
58cf0823 DS |
2464 | break; |
2465 | case AFI_UNSPEC: | |
2466 | case AFI_MAX: | |
d62a17ae | 2467 | return BGP_AF_MAX; |
3f9c7369 | 2468 | } |
58cf0823 DS |
2469 | |
2470 | assert(!"Reached end of function we should never hit"); | |
3f9c7369 DS |
2471 | } |
2472 | ||
c8560b44 | 2473 | /* If the peer is not a peer-group but is bound to a peer-group return 1 */ |
d62a17ae | 2474 | static inline int peer_group_active(struct peer *peer) |
3f9c7369 | 2475 | { |
d62a17ae | 2476 | if (!CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP) && peer->group) |
2477 | return 1; | |
2478 | return 0; | |
3f9c7369 DS |
2479 | } |
2480 | ||
2481 | /* If peer is negotiated at least one address family return 1. */ | |
d62a17ae | 2482 | static inline int peer_afi_active_nego(const struct peer *peer, afi_t afi) |
3f9c7369 | 2483 | { |
d62a17ae | 2484 | if (peer->afc_nego[afi][SAFI_UNICAST] |
2485 | || peer->afc_nego[afi][SAFI_MULTICAST] | |
2486 | || peer->afc_nego[afi][SAFI_LABELED_UNICAST] | |
2487 | || peer->afc_nego[afi][SAFI_MPLS_VPN] | |
2488 | || peer->afc_nego[afi][SAFI_ENCAP] | |
7c40bf39 | 2489 | || peer->afc_nego[afi][SAFI_FLOWSPEC] |
d62a17ae | 2490 | || peer->afc_nego[afi][SAFI_EVPN]) |
2491 | return 1; | |
2492 | return 0; | |
3f9c7369 DS |
2493 | } |
2494 | ||
f14e6fdb | 2495 | /* If at least one address family activated for group, return 1. */ |
d62a17ae | 2496 | static inline int peer_group_af_configured(struct peer_group *group) |
f14e6fdb | 2497 | { |
d62a17ae | 2498 | struct peer *peer = group->conf; |
2499 | ||
2500 | if (peer->afc[AFI_IP][SAFI_UNICAST] || peer->afc[AFI_IP][SAFI_MULTICAST] | |
2501 | || peer->afc[AFI_IP][SAFI_LABELED_UNICAST] | |
7c40bf39 | 2502 | || peer->afc[AFI_IP][SAFI_FLOWSPEC] |
d62a17ae | 2503 | || peer->afc[AFI_IP][SAFI_MPLS_VPN] || peer->afc[AFI_IP][SAFI_ENCAP] |
2504 | || peer->afc[AFI_IP6][SAFI_UNICAST] | |
2505 | || peer->afc[AFI_IP6][SAFI_MULTICAST] | |
2506 | || peer->afc[AFI_IP6][SAFI_LABELED_UNICAST] | |
2507 | || peer->afc[AFI_IP6][SAFI_MPLS_VPN] | |
ba0fcaf6 | 2508 | || peer->afc[AFI_IP6][SAFI_ENCAP] |
7c40bf39 | 2509 | || peer->afc[AFI_IP6][SAFI_FLOWSPEC] |
ba0fcaf6 | 2510 | || peer->afc[AFI_L2VPN][SAFI_EVPN]) |
d62a17ae | 2511 | return 1; |
2512 | return 0; | |
f14e6fdb DS |
2513 | } |
2514 | ||
d62a17ae | 2515 | static inline char *timestamp_string(time_t ts) |
3f9c7369 | 2516 | { |
d62a17ae | 2517 | time_t tbuf; |
083ec940 | 2518 | tbuf = time(NULL) - (monotime(NULL) - ts); |
d62a17ae | 2519 | return ctime(&tbuf); |
3f9c7369 DS |
2520 | } |
2521 | ||
feb17238 | 2522 | static inline bool peer_established(struct peer *peer) |
3f9c7369 | 2523 | { |
feb17238 | 2524 | return peer->status == Established; |
3f9c7369 DS |
2525 | } |
2526 | ||
af8496af | 2527 | static inline bool peer_dynamic_neighbor(struct peer *peer) |
f14e6fdb | 2528 | { |
af8496af DA |
2529 | return CHECK_FLAG(peer->flags, PEER_FLAG_DYNAMIC_NEIGHBOR); |
2530 | } | |
2531 | ||
2532 | static inline bool peer_dynamic_neighbor_no_nsf(struct peer *peer) | |
2533 | { | |
2534 | return (peer_dynamic_neighbor(peer) && | |
2535 | !CHECK_FLAG(peer->sflags, PEER_STATUS_NSF_WAIT)); | |
f14e6fdb DS |
2536 | } |
2537 | ||
d62a17ae | 2538 | static inline int peer_cap_enhe(struct peer *peer, afi_t afi, safi_t safi) |
8a92a8a0 | 2539 | { |
d62a17ae | 2540 | return (CHECK_FLAG(peer->af_cap[afi][safi], PEER_CAP_ENHE_AF_NEGO)); |
8a92a8a0 DS |
2541 | } |
2542 | ||
d1be1f08 | 2543 | /* Lookup VRF for BGP instance based on its type. */ |
d62a17ae | 2544 | static inline struct vrf *bgp_vrf_lookup_by_instance_type(struct bgp *bgp) |
d1be1f08 | 2545 | { |
d62a17ae | 2546 | struct vrf *vrf; |
d1be1f08 | 2547 | |
d62a17ae | 2548 | if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) |
2549 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
2550 | else if (bgp->inst_type == BGP_INSTANCE_TYPE_VRF) | |
2551 | vrf = vrf_lookup_by_name(bgp->name); | |
2552 | else | |
2553 | vrf = NULL; | |
d1be1f08 | 2554 | |
d62a17ae | 2555 | return vrf; |
d1be1f08 | 2556 | } |
2557 | ||
0d020cd6 PR |
2558 | static inline uint32_t bgp_vrf_interfaces(struct bgp *bgp, bool active) |
2559 | { | |
2560 | struct vrf *vrf; | |
2561 | struct interface *ifp; | |
2562 | uint32_t count = 0; | |
2563 | ||
2564 | /* if there is one interface in the vrf which is up then it is deemed | |
2565 | * active | |
2566 | */ | |
2567 | vrf = bgp_vrf_lookup_by_instance_type(bgp); | |
2568 | if (vrf == NULL) | |
2569 | return 0; | |
2570 | RB_FOREACH (ifp, if_name_head, &vrf->ifaces_by_name) { | |
5bcc6b46 | 2571 | if (strcmp(ifp->name, bgp->name) == 0) |
0d020cd6 PR |
2572 | continue; |
2573 | if (!active || if_is_up(ifp)) | |
2574 | count++; | |
2575 | } | |
2576 | return count; | |
2577 | } | |
2578 | ||
d1be1f08 | 2579 | /* Link BGP instance to VRF. */ |
d62a17ae | 2580 | static inline void bgp_vrf_link(struct bgp *bgp, struct vrf *vrf) |
d1be1f08 | 2581 | { |
d62a17ae | 2582 | bgp->vrf_id = vrf->vrf_id; |
92375c91 JB |
2583 | if (vrf->info != (void *)bgp) |
2584 | vrf->info = (void *)bgp_lock(bgp); | |
d1be1f08 | 2585 | } |
2586 | ||
2587 | /* Unlink BGP instance from VRF. */ | |
d62a17ae | 2588 | static inline void bgp_vrf_unlink(struct bgp *bgp, struct vrf *vrf) |
d1be1f08 | 2589 | { |
d62a17ae | 2590 | if (vrf->info == (void *)bgp) { |
2591 | vrf->info = NULL; | |
2592 | bgp_unlock(bgp); | |
2593 | } | |
2594 | bgp->vrf_id = VRF_UNKNOWN; | |
d1be1f08 | 2595 | } |
2596 | ||
637e5ba4 | 2597 | static inline bool bgp_in_graceful_shutdown(struct bgp *bgp) |
2598 | { | |
05bd726c | 2599 | /* True if either set for this instance or globally */ |
2600 | return (!!CHECK_FLAG(bgp->flags, BGP_FLAG_GRACEFUL_SHUTDOWN) || | |
2601 | !!CHECK_FLAG(bm->flags, BM_FLAG_GRACEFUL_SHUTDOWN)); | |
637e5ba4 | 2602 | } |
2603 | ||
65efcfce | 2604 | /* For benefit of rfapi */ |
d62a17ae | 2605 | extern struct peer *peer_new(struct bgp *bgp); |
dcc1615e DD |
2606 | |
2607 | extern struct peer *peer_lookup_in_view(struct vty *vty, struct bgp *bgp, | |
2608 | const char *ip_str, bool use_json); | |
bdaadb91 CS |
2609 | extern int bgp_lookup_by_as_name_type(struct bgp **bgp_val, as_t *as, |
2610 | const char *name, | |
2611 | enum bgp_instance_type inst_type); | |
dcc1615e | 2612 | |
7d8d0eab | 2613 | /* Hooks */ |
0d020cd6 | 2614 | DECLARE_HOOK(bgp_vrf_status_changed, (struct bgp *bgp, struct interface *ifp), |
8451921b DL |
2615 | (bgp, ifp)); |
2616 | DECLARE_HOOK(peer_status_changed, (struct peer *peer), (peer)); | |
2617 | DECLARE_HOOK(bgp_snmp_init_stats, (struct bgp *bgp), (bgp)); | |
2618 | DECLARE_HOOK(bgp_snmp_update_last_changed, (struct bgp *bgp), (bgp)); | |
7fd28dd2 PR |
2619 | DECLARE_HOOK(bgp_snmp_update_stats, |
2620 | (struct bgp_node *rn, struct bgp_path_info *pi, bool added), | |
8451921b | 2621 | (rn, pi, added)); |
b5b99af8 DS |
2622 | DECLARE_HOOK(bgp_rpki_prefix_status, |
2623 | (struct peer * peer, struct attr *attr, | |
2624 | const struct prefix *prefix), | |
8451921b | 2625 | (peer, attr, prefix)); |
b5b99af8 | 2626 | |
d7b3cda6 | 2627 | void peer_nsf_stop(struct peer *peer); |
7d8d0eab | 2628 | |
4ab46701 AR |
2629 | void peer_tcp_mss_set(struct peer *peer, uint32_t tcp_mss); |
2630 | void peer_tcp_mss_unset(struct peer *peer); | |
1479ed2f DA |
2631 | |
2632 | extern void bgp_recalculate_afi_safi_bestpaths(struct bgp *bgp, afi_t afi, | |
2633 | safi_t safi); | |
e85e4a8d MK |
2634 | extern void peer_on_policy_change(struct peer *peer, afi_t afi, safi_t safi, |
2635 | int outbound); | |
a5c6a9b1 DA |
2636 | extern bool bgp_path_attribute_discard(struct peer *peer, char *buf, |
2637 | size_t size); | |
f70c91dc DA |
2638 | #ifdef _FRR_ATTRIBUTE_PRINTFRR |
2639 | /* clang-format off */ | |
2640 | #pragma FRR printfrr_ext "%pBP" (struct peer *) | |
2641 | /* clang-format on */ | |
2642 | #endif | |
2643 | ||
00d252cb | 2644 | #endif /* _QUAGGA_BGPD_H */ |