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718e3744 1/* BGP message definition header.
2 Copyright (C) 1996, 97, 98, 99, 2000 Kunihiro Ishiguro
3
4This file is part of GNU Zebra.
5
6GNU Zebra is free software; you can redistribute it and/or modify it
7under the terms of the GNU General Public License as published by the
8Free Software Foundation; either version 2, or (at your option) any
9later version.
10
11GNU Zebra is distributed in the hope that it will be useful, but
12WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with GNU Zebra; see the file COPYING. If not, write to the Free
18Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
1902111-1307, USA. */
20
00d252cb 21#ifndef _QUAGGA_BGPD_H
22#define _QUAGGA_BGPD_H
23
718e3744 24/* For union sockunion. */
25#include "sockunion.h"
26
27/* Typedef BGP specific types. */
0b2aa3a0
PJ		 28typedef u_int32_t as_t;
29typedef u_int16_t as16_t; /* we may still encounter 16 Bit asnums */
718e3744 30typedef u_int16_t bgp_size_t;
31
32/* BGP master for system wide configurations and variables. */
33struct bgp_master
34{
35 /* BGP instance list. */
36 struct list *bgp;
37
38 /* BGP thread master. */
39 struct thread_master *master;
40
200df115 41 /* work queues */
42 struct work_queue *process_main_queue;
43 struct work_queue *process_rsclient_queue;
200df115 44
0df7c91f
PJ		 45 /* Listening sockets */
46 struct list *listen_sockets;
47
718e3744 48 /* BGP port number. */
49 u_int16_t port;
50
3a02d1f7
PJ		 51 /* Listener address */
52 char *address;
53
718e3744 54 /* BGP start time. */
55 time_t start_time;
56
57 /* Various BGP global configuration. */
58 u_char options;
59#define BGP_OPT_NO_FIB (1 << 0)
60#define BGP_OPT_MULTIPLE_INSTANCE (1 << 1)
61#define BGP_OPT_CONFIG_CISCO (1 << 2)
cccbc015 62#define BGP_OPT_NO_LISTEN (1 << 3)
718e3744 63};
64
65/* BGP instance structure. */
66struct bgp
67{
68 /* AS number of this BGP instance. */
69 as_t as;
70
71 /* Name of this BGP instance. */
72 char *name;
200df115 73
0088b5dc
SH		 74 /* Reference count to allow peer_delete to finish after bgp_delete */
75 int lock;
76
718e3744 77 /* Self peer. */
78 struct peer *peer_self;
79
80 /* BGP peer. */
81 struct list *peer;
82
83 /* BGP peer group. */
84 struct list *group;
85
fee0f4c6 86 /* BGP route-server-clients. */
87 struct list *rsclient;
88
718e3744 89 /* BGP configuration. */
90 u_int16_t config;
91#define BGP_CONFIG_ROUTER_ID (1 << 0)
92#define BGP_CONFIG_CLUSTER_ID (1 << 1)
93#define BGP_CONFIG_CONFEDERATION (1 << 2)
718e3744 94
95 /* BGP router identifier. */
96 struct in_addr router_id;
18a6dce6 97 struct in_addr router_id_static;
718e3744 98
99 /* BGP route reflector cluster ID. */
100 struct in_addr cluster_id;
101
102 /* BGP confederation information. */
103 as_t confed_id;
104 as_t *confed_peers;
105 int confed_peers_cnt;
106
107 /* BGP flags. */
108 u_int16_t flags;
109#define BGP_FLAG_ALWAYS_COMPARE_MED (1 << 0)
110#define BGP_FLAG_DETERMINISTIC_MED (1 << 1)
111#define BGP_FLAG_MED_MISSING_AS_WORST (1 << 2)
112#define BGP_FLAG_MED_CONFED (1 << 3)
113#define BGP_FLAG_NO_DEFAULT_IPV4 (1 << 4)
114#define BGP_FLAG_NO_CLIENT_TO_CLIENT (1 << 5)
115#define BGP_FLAG_ENFORCE_FIRST_AS (1 << 6)
116#define BGP_FLAG_COMPARE_ROUTER_ID (1 << 7)
117#define BGP_FLAG_ASPATH_IGNORE (1 << 8)
118#define BGP_FLAG_IMPORT_CHECK (1 << 9)
119#define BGP_FLAG_NO_FAST_EXT_FAILOVER (1 << 10)
848973c7 120#define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1 << 11)
538621f2 121#define BGP_FLAG_GRACEFUL_RESTART (1 << 12)
6811845b 122#define BGP_FLAG_ASPATH_CONFED (1 << 13)
718e3744 123
124 /* BGP Per AF flags */
125 u_int16_t af_flags[AFI_MAX][SAFI_MAX];
126#define BGP_CONFIG_DAMPENING (1 << 0)
127
128 /* Static route configuration. */
129 struct bgp_table *route[AFI_MAX][SAFI_MAX];
130
131 /* Aggregate address configuration. */
132 struct bgp_table *aggregate[AFI_MAX][SAFI_MAX];
133
134 /* BGP routing information base. */
135 struct bgp_table *rib[AFI_MAX][SAFI_MAX];
136
137 /* BGP redistribute configuration. */
138 u_char redist[AFI_MAX][ZEBRA_ROUTE_MAX];
139
140 /* BGP redistribute metric configuration. */
141 u_char redist_metric_flag[AFI_MAX][ZEBRA_ROUTE_MAX];
142 u_int32_t redist_metric[AFI_MAX][ZEBRA_ROUTE_MAX];
143
144 /* BGP redistribute route-map. */
145 struct
146 {
147 char *name;
148 struct route_map *map;
149 } rmap[AFI_MAX][ZEBRA_ROUTE_MAX];
150
151 /* BGP distance configuration. */
152 u_char distance_ebgp;
153 u_char distance_ibgp;
154 u_char distance_local;
155
156 /* BGP default local-preference. */
157 u_int32_t default_local_pref;
158
159 /* BGP default timer. */
160 u_int32_t default_holdtime;
161 u_int32_t default_keepalive;
538621f2 162
163 /* BGP graceful restart */
93406d87 164 u_int32_t restart_time;
165 u_int32_t stalepath_time;
165b5fff
JB		 166
167 /* Maximum-paths configuration */
168 struct bgp_maxpaths_cfg {
169 u_int16_t maxpaths_ebgp;
170 u_int16_t maxpaths_ibgp;
171 } maxpaths[AFI_MAX][SAFI_MAX];
718e3744 172};
173
174/* BGP peer-group support. */
175struct peer_group
176{
177 /* Name of the peer-group. */
178 char *name;
179
180 /* Pointer to BGP. */
181 struct bgp *bgp;
182
183 /* Peer-group client list. */
184 struct list *peer;
185
186 /* Peer-group config */
187 struct peer *conf;
188};
189
190/* BGP Notify message format. */
191struct bgp_notify
192{
193 u_char code;
194 u_char subcode;
195 char *data;
196 bgp_size_t length;
197};
198
199/* Next hop self address. */
200struct bgp_nexthop
201{
202 struct interface *ifp;
203 struct in_addr v4;
204#ifdef HAVE_IPV6
205 struct in6_addr v6_global;
206 struct in6_addr v6_local;
207#endif /* HAVE_IPV6 */
208};
209
210/* BGP router distinguisher value. */
211#define BGP_RD_SIZE 8
212
213struct bgp_rd
214{
215 u_char val[BGP_RD_SIZE];
216};
217
fee0f4c6 218#define RMAP_IN 0
219#define RMAP_OUT 1
220#define RMAP_IMPORT 2
221#define RMAP_EXPORT 3
222#define RMAP_MAX 4
223
718e3744 224/* BGP filter structure. */
225struct bgp_filter
226{
227 /* Distribute-list. */
228 struct
229 {
230 char *name;
231 struct access_list *alist;
232 } dlist[FILTER_MAX];
233
234 /* Prefix-list. */
235 struct
236 {
237 char *name;
238 struct prefix_list *plist;
239 } plist[FILTER_MAX];
240
241 /* Filter-list. */
242 struct
243 {
244 char *name;
245 struct as_list *aslist;
246 } aslist[FILTER_MAX];
247
248 /* Route-map. */
249 struct
250 {
251 char *name;
252 struct route_map *map;
fee0f4c6 253 } map[RMAP_MAX];
718e3744 254
255 /* Unsuppress-map. */
256 struct
257 {
258 char *name;
259 struct route_map *map;
260 } usmap;
261};
262
6d85b15b
JBD		 263/* IBGP/EBGP identifier. We also have a CONFED peer, which is to say,
264 a peer who's AS is part of our Confederation. */
265typedef enum
266{
267 BGP_PEER_IBGP = 1,
268 BGP_PEER_EBGP,
269 BGP_PEER_INTERNAL,
270 BGP_PEER_CONFED,
271} bgp_peer_sort_t;
272
718e3744 273/* BGP neighbor structure. */
274struct peer
275{
276 /* BGP structure. */
277 struct bgp *bgp;
278
200df115 279 /* reference count, primarily to allow bgp_process'ing of route_node's
280 * to be done after a struct peer is deleted.
281 *
282 * named 'lock' for hysterical reasons within Quagga.
283 */
284 int lock;
285
718e3744 286 /* BGP peer group. */
287 struct peer_group *group;
288 u_char af_group[AFI_MAX][SAFI_MAX];
289
290 /* Peer's remote AS number. */
291 as_t as;
292
293 /* Peer's local AS number. */
294 as_t local_as;
295
6d85b15b
JBD		 296 bgp_peer_sort_t sort;
297
718e3744 298 /* Peer's Change local AS number. */
299 as_t change_local_as;
300
301 /* Remote router ID. */
302 struct in_addr remote_id;
303
304 /* Local router ID. */
305 struct in_addr local_id;
306
fee0f4c6 307 /* Peer specific RIB when configured as route-server-client. */
308 struct bgp_table *rib[AFI_MAX][SAFI_MAX];
309
718e3744 310 /* Packet receive and send buffer. */
311 struct stream *ibuf;
312 struct stream_fifo *obuf;
313 struct stream *work;
314
315 /* Status of the peer. */
316 int status;
317 int ostatus;
318
0b2aa3a0
PJ		 319 /* Peer index, used for dumping TABLE_DUMP_V2 format */
320 uint16_t table_dump_index;
321
718e3744 322 /* Peer information */
eb821189 323 int fd; /* File descriptor */
324 int ttl; /* TTL of TCP connection to the peer. */
fa411a21 325 int gtsm_hops; /* minimum hopcount to peer */
eb821189 326 char *desc; /* Description of the peer. */
327 unsigned short port; /* Destination port for peer */
328 char *host; /* Printable address of the peer. */
329 union sockunion su; /* Sockunion address of the peer. */
330 time_t uptime; /* Last Up/Down time */
331 time_t readtime; /* Last read time */
332 time_t resettime; /* Last reset time */
718e3744 333
eb821189 334 unsigned int ifindex; /* ifindex of the BGP connection. */
335 char *ifname; /* bind interface name. */
336 char *update_if;
337 union sockunion *update_source;
338 struct zlog *log;
eb821189 339
340 union sockunion *su_local; /* Sockunion of local address. */
341 union sockunion *su_remote; /* Sockunion of remote address. */
342 int shared_network; /* Is this peer shared same network. */
343 struct bgp_nexthop nexthop; /* Nexthop */
718e3744 344
345 /* Peer address family configuration. */
346 u_char afc[AFI_MAX][SAFI_MAX];
347 u_char afc_nego[AFI_MAX][SAFI_MAX];
348 u_char afc_adv[AFI_MAX][SAFI_MAX];
349 u_char afc_recv[AFI_MAX][SAFI_MAX];
350
0a486e5f 351 /* Capability flags (reset in bgp_stop) */
0b2aa3a0 352 u_int16_t cap;
718e3744 353#define PEER_CAP_REFRESH_ADV (1 << 0) /* refresh advertised */
354#define PEER_CAP_REFRESH_OLD_RCV (1 << 1) /* refresh old received */
355#define PEER_CAP_REFRESH_NEW_RCV (1 << 2) /* refresh rfc received */
356#define PEER_CAP_DYNAMIC_ADV (1 << 3) /* dynamic advertised */
357#define PEER_CAP_DYNAMIC_RCV (1 << 4) /* dynamic received */
538621f2 358#define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */
359#define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */
0b2aa3a0
PJ		 360#define PEER_CAP_AS4_ADV (1 << 7) /* as4 advertised */
361#define PEER_CAP_AS4_RCV (1 << 8) /* as4 received */
718e3744 362
0a486e5f 363 /* Capability flags (reset in bgp_stop) */
718e3744 364 u_int16_t af_cap[AFI_MAX][SAFI_MAX];
365#define PEER_CAP_ORF_PREFIX_SM_ADV (1 << 0) /* send-mode advertised */
366#define PEER_CAP_ORF_PREFIX_RM_ADV (1 << 1) /* receive-mode advertised */
367#define PEER_CAP_ORF_PREFIX_SM_RCV (1 << 2) /* send-mode received */
368#define PEER_CAP_ORF_PREFIX_RM_RCV (1 << 3) /* receive-mode received */
369#define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1 << 4) /* send-mode received */
370#define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1 << 5) /* receive-mode received */
93406d87 371#define PEER_CAP_RESTART_AF_RCV (1 << 6) /* graceful restart afi/safi received */
372#define PEER_CAP_RESTART_AF_PRESERVE_RCV (1 << 7) /* graceful restart afi/safi F-bit received */
718e3744 373
374 /* Global configuration flags. */
375 u_int32_t flags;
376#define PEER_FLAG_PASSIVE (1 << 0) /* passive mode */
377#define PEER_FLAG_SHUTDOWN (1 << 1) /* shutdown */
378#define PEER_FLAG_DONT_CAPABILITY (1 << 2) /* dont-capability */
379#define PEER_FLAG_OVERRIDE_CAPABILITY (1 << 3) /* override-capability */
380#define PEER_FLAG_STRICT_CAP_MATCH (1 << 4) /* strict-match */
c9502438 381#define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 5) /* dynamic capability */
6ffd2079 382#define PEER_FLAG_DISABLE_CONNECTED_CHECK (1 << 6) /* disable-connected-check */
c9502438 383#define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 7) /* local-as no-prepend */
718e3744 384
93406d87 385 /* NSF mode (graceful restart) */
386 u_char nsf[AFI_MAX][SAFI_MAX];
387
718e3744 388 /* Per AF configuration flags. */
389 u_int32_t af_flags[AFI_MAX][SAFI_MAX];
390#define PEER_FLAG_SEND_COMMUNITY (1 << 0) /* send-community */
391#define PEER_FLAG_SEND_EXT_COMMUNITY (1 << 1) /* send-community ext. */
392#define PEER_FLAG_NEXTHOP_SELF (1 << 2) /* next-hop-self */
393#define PEER_FLAG_REFLECTOR_CLIENT (1 << 3) /* reflector-client */
394#define PEER_FLAG_RSERVER_CLIENT (1 << 4) /* route-server-client */
395#define PEER_FLAG_SOFT_RECONFIG (1 << 5) /* soft-reconfiguration */
396#define PEER_FLAG_AS_PATH_UNCHANGED (1 << 6) /* transparent-as */
397#define PEER_FLAG_NEXTHOP_UNCHANGED (1 << 7) /* transparent-next-hop */
398#define PEER_FLAG_MED_UNCHANGED (1 << 8) /* transparent-next-hop */
399#define PEER_FLAG_DEFAULT_ORIGINATE (1 << 9) /* default-originate */
400#define PEER_FLAG_REMOVE_PRIVATE_AS (1 << 10) /* remove-private-as */
401#define PEER_FLAG_ALLOWAS_IN (1 << 11) /* set allowas-in */
402#define PEER_FLAG_ORF_PREFIX_SM (1 << 12) /* orf capability send-mode */
403#define PEER_FLAG_ORF_PREFIX_RM (1 << 13) /* orf capability receive-mode */
404#define PEER_FLAG_MAX_PREFIX (1 << 14) /* maximum prefix */
405#define PEER_FLAG_MAX_PREFIX_WARNING (1 << 15) /* maximum prefix warning-only */
0df7c91f
PJ		 406#define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1 << 16) /* leave link-local nexthop unchanged */
407
408 /* MD5 password */
409 char *password;
718e3744 410
411 /* default-originate route-map. */
412 struct
413 {
414 char *name;
415 struct route_map *map;
416 } default_rmap[AFI_MAX][SAFI_MAX];
417
418 /* Peer status flags. */
419 u_int16_t sflags;
420#define PEER_STATUS_ACCEPT_PEER (1 << 0) /* accept peer */
421#define PEER_STATUS_PREFIX_OVERFLOW (1 << 1) /* prefix-overflow */
422#define PEER_STATUS_CAPABILITY_OPEN (1 << 2) /* capability open send */
423#define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */
424#define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */
93406d87 425#define PEER_STATUS_NSF_MODE (1 << 5) /* NSF aware peer */
426#define PEER_STATUS_NSF_WAIT (1 << 6) /* wait comeback peer */
718e3744 427
0a486e5f 428 /* Peer status af flags (reset in bgp_stop) */
718e3744 429 u_int16_t af_sflags[AFI_MAX][SAFI_MAX];
430#define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */
431#define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */
432#define PEER_STATUS_DEFAULT_ORIGINATE (1 << 2) /* default-originate peer */
e0701b79 433#define PEER_STATUS_PREFIX_THRESHOLD (1 << 3) /* exceed prefix-threshold */
434#define PEER_STATUS_PREFIX_LIMIT (1 << 4) /* exceed prefix-limit */
93406d87 435#define PEER_STATUS_EOR_SEND (1 << 5) /* end-of-rib send to peer */
436#define PEER_STATUS_EOR_RECEIVED (1 << 6) /* end-of-rib received from peer */
e0701b79 437
718e3744 438 /* Default attribute value for the peer. */
439 u_int32_t config;
440#define PEER_CONFIG_WEIGHT (1 << 0) /* Default weight. */
441#define PEER_CONFIG_TIMER (1 << 1) /* keepalive & holdtime */
442#define PEER_CONFIG_CONNECT (1 << 2) /* connect */
443#define PEER_CONFIG_ROUTEADV (1 << 3) /* route advertise */
444 u_int32_t weight;
445 u_int32_t holdtime;
446 u_int32_t keepalive;
447 u_int32_t connect;
448 u_int32_t routeadv;
449
450 /* Timer values. */
451 u_int32_t v_start;
452 u_int32_t v_connect;
453 u_int32_t v_holdtime;
454 u_int32_t v_keepalive;
455 u_int32_t v_asorig;
456 u_int32_t v_routeadv;
0a486e5f 457 u_int32_t v_pmax_restart;
93406d87 458 u_int32_t v_gr_restart;
718e3744 459
460 /* Threads. */
461 struct thread *t_read;
462 struct thread *t_write;
463 struct thread *t_start;
464 struct thread *t_connect;
465 struct thread *t_holdtime;
466 struct thread *t_keepalive;
467 struct thread *t_asorig;
468 struct thread *t_routeadv;
0a486e5f 469 struct thread *t_pmax_restart;
93406d87 470 struct thread *t_gr_restart;
471 struct thread *t_gr_stale;
64e580a7
PJ		 472
473 /* workqueues */
474 struct work_queue *clear_node_queue;
475
718e3744 476 /* Statistics field */
477 u_int32_t open_in; /* Open message input count */
478 u_int32_t open_out; /* Open message output count */
479 u_int32_t update_in; /* Update message input count */
480 u_int32_t update_out; /* Update message ouput count */
481 time_t update_time; /* Update message received time. */
482 u_int32_t keepalive_in; /* Keepalive input count */
483 u_int32_t keepalive_out; /* Keepalive output count */
484 u_int32_t notify_in; /* Notify input count */
485 u_int32_t notify_out; /* Notify output count */
486 u_int32_t refresh_in; /* Route Refresh input count */
487 u_int32_t refresh_out; /* Route Refresh output count */
488 u_int32_t dynamic_cap_in; /* Dynamic Capability input count. */
489 u_int32_t dynamic_cap_out; /* Dynamic Capability output count. */
490
491 /* BGP state count */
492 u_int32_t established; /* Established */
493 u_int32_t dropped; /* Dropped */
494
495 /* Syncronization list and time. */
496 struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX];
497 time_t synctime;
498
499 /* Send prefix count. */
500 unsigned long scount[AFI_MAX][SAFI_MAX];
501
502 /* Announcement attribute hash. */
503 struct hash *hash[AFI_MAX][SAFI_MAX];
504
505 /* Notify data. */
506 struct bgp_notify notify;
507
508 /* Whole packet size to be read. */
509 unsigned long packet_size;
510
511 /* Filter structure. */
512 struct bgp_filter filter[AFI_MAX][SAFI_MAX];
513
514 /* ORF Prefix-list */
515 struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX];
516
517 /* Prefix count. */
518 unsigned long pcount[AFI_MAX][SAFI_MAX];
519
520 /* Max prefix count. */
521 unsigned long pmax[AFI_MAX][SAFI_MAX];
e0701b79 522 u_char pmax_threshold[AFI_MAX][SAFI_MAX];
0a486e5f 523 u_int16_t pmax_restart[AFI_MAX][SAFI_MAX];
e0701b79 524#define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75
718e3744 525
526 /* allowas-in. */
527 char allowas_in[AFI_MAX][SAFI_MAX];
ac41b2a2 528
e0701b79 529 /* peer reset cause */
530 char last_reset;
531#define PEER_DOWN_RID_CHANGE 1 /* bgp router-id command */
532#define PEER_DOWN_REMOTE_AS_CHANGE 2 /* neighbor remote-as command */
533#define PEER_DOWN_LOCAL_AS_CHANGE 3 /* neighbor local-as command */
534#define PEER_DOWN_CLID_CHANGE 4 /* bgp cluster-id command */
535#define PEER_DOWN_CONFED_ID_CHANGE 5 /* bgp confederation identifier command */
536#define PEER_DOWN_CONFED_PEER_CHANGE 6 /* bgp confederation peer command */
537#define PEER_DOWN_RR_CLIENT_CHANGE 7 /* neighbor route-reflector-client command */
538#define PEER_DOWN_RS_CLIENT_CHANGE 8 /* neighbor route-server-client command */
539#define PEER_DOWN_UPDATE_SOURCE_CHANGE 9 /* neighbor update-source command */
540#define PEER_DOWN_AF_ACTIVATE 10 /* neighbor activate command */
541#define PEER_DOWN_USER_SHUTDOWN 11 /* neighbor shutdown command */
542#define PEER_DOWN_USER_RESET 12 /* clear ip bgp command */
543#define PEER_DOWN_NOTIFY_RECEIVED 13 /* notification received */
544#define PEER_DOWN_NOTIFY_SEND 14 /* notification send */
545#define PEER_DOWN_CLOSE_SESSION 15 /* tcp session close */
546#define PEER_DOWN_NEIGHBOR_DELETE 16 /* neghbor delete */
547#define PEER_DOWN_RMAP_BIND 17 /* neghbor peer-group command */
548#define PEER_DOWN_RMAP_UNBIND 18 /* no neighbor peer-group command */
549#define PEER_DOWN_CAPABILITY_CHANGE 19 /* neighbor capability command */
550#define PEER_DOWN_PASSIVE_CHANGE 20 /* neighbor passive command */
551#define PEER_DOWN_MULTIHOP_CHANGE 21 /* neighbor multihop command */
93406d87 552#define PEER_DOWN_NSF_CLOSE_SESSION 22 /* NSF tcp session close */
e0701b79 553
ac41b2a2 554 /* The kind of route-map Flags.*/
555 u_char rmap_type;
556#define PEER_RMAP_TYPE_IN (1 << 0) /* neighbor route-map in */
557#define PEER_RMAP_TYPE_OUT (1 << 1) /* neighbor route-map out */
558#define PEER_RMAP_TYPE_NETWORK (1 << 2) /* network route-map */
559#define PEER_RMAP_TYPE_REDISTRIBUTE (1 << 3) /* redistribute route-map */
560#define PEER_RMAP_TYPE_DEFAULT (1 << 4) /* default-originate route-map */
561#define PEER_RMAP_TYPE_NOSET (1 << 5) /* not allow to set commands */
fee0f4c6 562#define PEER_RMAP_TYPE_IMPORT (1 << 6) /* neighbor route-map import */
563#define PEER_RMAP_TYPE_EXPORT (1 << 7) /* neighbor route-map export */
718e3744 564};
565
0df7c91f
PJ		 566#define PEER_PASSWORD_MINLEN (1)
567#define PEER_PASSWORD_MAXLEN (80)
568
718e3744 569/* This structure's member directly points incoming packet data
570 stream. */
571struct bgp_nlri
572{
573 /* AFI. */
574 afi_t afi;
575
576 /* SAFI. */
577 safi_t safi;
578
579 /* Pointer to NLRI byte stream. */
580 u_char *nlri;
581
582 /* Length of whole NLRI. */
583 bgp_size_t length;
584};
585
586/* BGP versions. */
587#define BGP_VERSION_4 4
718e3744 588
589/* Default BGP port number. */
590#define BGP_PORT_DEFAULT 179
591
592/* BGP message header and packet size. */
593#define BGP_MARKER_SIZE 16
594#define BGP_HEADER_SIZE 19
595#define BGP_MAX_PACKET_SIZE 4096
596
597/* BGP minimum message size. */
598#define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10)
599#define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4)
600#define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2)
601#define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0)
602#define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4)
603#define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3)
604
605/* BGP message types. */
606#define BGP_MSG_OPEN 1
607#define BGP_MSG_UPDATE 2
608#define BGP_MSG_NOTIFY 3
609#define BGP_MSG_KEEPALIVE 4
610#define BGP_MSG_ROUTE_REFRESH_NEW 5
611#define BGP_MSG_CAPABILITY 6
612#define BGP_MSG_ROUTE_REFRESH_OLD 128
613
614/* BGP open optional parameter. */
615#define BGP_OPEN_OPT_AUTH 1
616#define BGP_OPEN_OPT_CAP 2
617
618/* BGP4 attribute type codes. */
619#define BGP_ATTR_ORIGIN 1
620#define BGP_ATTR_AS_PATH 2
621#define BGP_ATTR_NEXT_HOP 3
622#define BGP_ATTR_MULTI_EXIT_DISC 4
623#define BGP_ATTR_LOCAL_PREF 5
624#define BGP_ATTR_ATOMIC_AGGREGATE 6
625#define BGP_ATTR_AGGREGATOR 7
626#define BGP_ATTR_COMMUNITIES 8
627#define BGP_ATTR_ORIGINATOR_ID 9
628#define BGP_ATTR_CLUSTER_LIST 10
629#define BGP_ATTR_DPA 11
630#define BGP_ATTR_ADVERTISER 12
631#define BGP_ATTR_RCID_PATH 13
632#define BGP_ATTR_MP_REACH_NLRI 14
633#define BGP_ATTR_MP_UNREACH_NLRI 15
634#define BGP_ATTR_EXT_COMMUNITIES 16
0b2aa3a0
PJ		 635#define BGP_ATTR_AS4_PATH 17
636#define BGP_ATTR_AS4_AGGREGATOR 18
41367172 637#define BGP_ATTR_AS_PATHLIMIT 21
718e3744 638
639/* BGP update origin. */
640#define BGP_ORIGIN_IGP 0
641#define BGP_ORIGIN_EGP 1
642#define BGP_ORIGIN_INCOMPLETE 2
643
644/* BGP notify message codes. */
645#define BGP_NOTIFY_HEADER_ERR 1
646#define BGP_NOTIFY_OPEN_ERR 2
647#define BGP_NOTIFY_UPDATE_ERR 3
648#define BGP_NOTIFY_HOLD_ERR 4
649#define BGP_NOTIFY_FSM_ERR 5
650#define BGP_NOTIFY_CEASE 6
651#define BGP_NOTIFY_CAPABILITY_ERR 7
652#define BGP_NOTIFY_MAX 8
653
4b4e07d2
DT		 654#define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0
655
718e3744 656/* BGP_NOTIFY_HEADER_ERR sub codes. */
657#define BGP_NOTIFY_HEADER_NOT_SYNC 1
658#define BGP_NOTIFY_HEADER_BAD_MESLEN 2
659#define BGP_NOTIFY_HEADER_BAD_MESTYPE 3
660#define BGP_NOTIFY_HEADER_MAX 4
661
662/* BGP_NOTIFY_OPEN_ERR sub codes. */
663#define BGP_NOTIFY_OPEN_UNSUP_VERSION 1
664#define BGP_NOTIFY_OPEN_BAD_PEER_AS 2
665#define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3
666#define BGP_NOTIFY_OPEN_UNSUP_PARAM 4
667#define BGP_NOTIFY_OPEN_AUTH_FAILURE 5
668#define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6
669#define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7
670#define BGP_NOTIFY_OPEN_MAX 8
671
672/* BGP_NOTIFY_UPDATE_ERR sub codes. */
673#define BGP_NOTIFY_UPDATE_MAL_ATTR 1
674#define BGP_NOTIFY_UPDATE_UNREC_ATTR 2
675#define BGP_NOTIFY_UPDATE_MISS_ATTR 3
676#define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4
677#define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5
678#define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6
679#define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7
680#define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8
681#define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9
682#define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10
683#define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11
684#define BGP_NOTIFY_UPDATE_MAX 12
685
4b4e07d2 686/* BGP_NOTIFY_CEASE sub codes (RFC 4486). */
718e3744 687#define BGP_NOTIFY_CEASE_MAX_PREFIX 1
688#define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2
689#define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3
690#define BGP_NOTIFY_CEASE_ADMIN_RESET 4
691#define BGP_NOTIFY_CEASE_CONNECT_REJECT 5
692#define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6
545acafb 693#define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7
694#define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8
695#define BGP_NOTIFY_CEASE_MAX 9
718e3744 696
697/* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */
698#define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1
699#define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2
700#define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3
701#define BGP_NOTIFY_CAPABILITY_MAX 4
702
703/* BGP finite state machine status. */
704#define Idle 1
705#define Connect 2
706#define Active 3
707#define OpenSent 4
708#define OpenConfirm 5
709#define Established 6
ca058a30
PJ		 710#define Clearing 7
711#define Deleted 8
712#define BGP_STATUS_MAX 9
718e3744 713
714/* BGP finite state machine events. */
715#define BGP_Start 1
716#define BGP_Stop 2
717#define TCP_connection_open 3
718#define TCP_connection_closed 4
719#define TCP_connection_open_failed 5
720#define TCP_fatal_error 6
721#define ConnectRetry_timer_expired 7
722#define Hold_Timer_expired 8
723#define KeepAlive_timer_expired 9
724#define Receive_OPEN_message 10
725#define Receive_KEEPALIVE_message 11
726#define Receive_UPDATE_message 12
727#define Receive_NOTIFICATION_message 13
ca058a30
PJ		 728#define Clearing_Completed 14
729#define BGP_EVENTS_MAX 15
718e3744 730
731/* BGP timers default value. */
732#define BGP_INIT_START_TIMER 5
733#define BGP_ERROR_START_TIMER 30
734#define BGP_DEFAULT_HOLDTIME 180
735#define BGP_DEFAULT_KEEPALIVE 60
736#define BGP_DEFAULT_ASORIGINATE 15
737#define BGP_DEFAULT_EBGP_ROUTEADV 30
738#define BGP_DEFAULT_IBGP_ROUTEADV 5
739#define BGP_CLEAR_CONNECT_RETRY 20
740#define BGP_DEFAULT_CONNECT_RETRY 120
741
742/* BGP default local preference. */
743#define BGP_DEFAULT_LOCAL_PREF 100
744
538621f2 745/* BGP graceful restart */
746#define BGP_DEFAULT_RESTART_TIME 120
747#define BGP_DEFAULT_STALEPATH_TIME 360
748
42e6d745
DO		 749/* RFC4364 */
750#define SAFI_MPLS_LABELED_VPN 128
718e3744 751
752/* Max TTL value. */
753#define TTL_MAX 255
754
755/* BGP uptime string length. */
756#define BGP_UPTIME_LEN 25
757
758/* Default configuration settings for bgpd. */
759#define BGP_VTY_PORT 2605
718e3744 760#define BGP_DEFAULT_CONFIG "bgpd.conf"
761
762/* Check AS path loop when we send NLRI. */
763/* #define BGP_SEND_ASPATH_CHECK */
764
718e3744 765/* Flag for peer_clear_soft(). */
766enum bgp_clear_type
767{
768 BGP_CLEAR_SOFT_NONE,
769 BGP_CLEAR_SOFT_OUT,
770 BGP_CLEAR_SOFT_IN,
771 BGP_CLEAR_SOFT_BOTH,
fee0f4c6 772 BGP_CLEAR_SOFT_IN_ORF_PREFIX,
773 BGP_CLEAR_SOFT_RSCLIENT
718e3744 774};
775
776/* Macros. */
777#define BGP_INPUT(P) ((P)->ibuf)
778#define BGP_INPUT_PNT(P) (STREAM_PNT(BGP_INPUT(P)))
779
718e3744 780/* Count prefix size from mask length */
781#define PSIZE(a) (((a) + 7) / (8))
782
783/* BGP error codes. */
784#define BGP_SUCCESS 0
785#define BGP_ERR_INVALID_VALUE -1
786#define BGP_ERR_INVALID_FLAG -2
787#define BGP_ERR_INVALID_AS -3
788#define BGP_ERR_INVALID_BGP -4
789#define BGP_ERR_PEER_GROUP_MEMBER -5
790#define BGP_ERR_MULTIPLE_INSTANCE_USED -6
791#define BGP_ERR_PEER_GROUP_MEMBER_EXISTS -7
792#define BGP_ERR_PEER_BELONGS_TO_GROUP -8
793#define BGP_ERR_PEER_GROUP_AF_UNCONFIGURED -9
794#define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -10
795#define BGP_ERR_PEER_GROUP_CANT_CHANGE -11
796#define BGP_ERR_PEER_GROUP_MISMATCH -12
797#define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -13
798#define BGP_ERR_MULTIPLE_INSTANCE_NOT_SET -14
799#define BGP_ERR_AS_MISMATCH -15
800#define BGP_ERR_PEER_INACTIVE -16
801#define BGP_ERR_INVALID_FOR_PEER_GROUP_MEMBER -17
802#define BGP_ERR_PEER_GROUP_HAS_THE_FLAG -18
803#define BGP_ERR_PEER_FLAG_CONFLICT -19
804#define BGP_ERR_PEER_GROUP_SHUTDOWN -20
805#define BGP_ERR_PEER_FILTER_CONFLICT -21
806#define BGP_ERR_NOT_INTERNAL_PEER -22
807#define BGP_ERR_REMOVE_PRIVATE_AS -23
808#define BGP_ERR_AF_UNCONFIGURED -24
809#define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -25
810#define BGP_ERR_INSTANCE_MISMATCH -26
811#define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -27
812#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -28
0df7c91f 813#define BGP_ERR_TCPSIG_FAILED -29
fa411a21 814#define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -30
f5a4827d
SH		 815#define BGP_ERR_NO_IBGP_WITH_TTLHACK -31
816#define BGP_ERR_MAX -32
718e3744 817
818extern struct bgp_master *bm;
819
820extern struct thread_master *master;
821
822/* Prototypes. */
94f2b392 823extern void bgp_terminate (void);
824extern void bgp_reset (void);
65957886 825extern time_t bgp_clock (void);
94f2b392 826extern void bgp_zclient_reset (void);
827extern int bgp_nexthop_set (union sockunion *, union sockunion *,
718e3744 828 struct bgp_nexthop *, struct peer *);
94f2b392 829extern struct bgp *bgp_get_default (void);
830extern struct bgp *bgp_lookup (as_t, const char *);
831extern struct bgp *bgp_lookup_by_name (const char *);
832extern struct peer *peer_lookup (struct bgp *, union sockunion *);
833extern struct peer_group *peer_group_lookup (struct bgp *, const char *);
834extern struct peer_group *peer_group_get (struct bgp *, const char *);
835extern struct peer *peer_lookup_with_open (union sockunion *, as_t, struct in_addr *,
718e3744 836 int *);
200df115 837extern struct peer *peer_lock (struct peer *);
838extern struct peer *peer_unlock (struct peer *);
6d85b15b 839extern bgp_peer_sort_t peer_sort (struct peer *peer);
94f2b392 840extern int peer_active (struct peer *);
841extern int peer_active_nego (struct peer *);
842extern struct peer *peer_create_accept (struct bgp *);
843extern char *peer_uptime (time_t, char *, size_t);
844extern int bgp_config_write (struct vty *);
845extern void bgp_config_write_family_header (struct vty *, afi_t, safi_t, int *);
718e3744 846\f
94f2b392 847extern void bgp_master_init (void);
718e3744 848
94f2b392 849extern void bgp_init (void);
850extern void bgp_route_map_init (void);
718e3744 851
94f2b392 852extern int bgp_option_set (int);
853extern int bgp_option_unset (int);
854extern int bgp_option_check (int);
718e3744 855
94f2b392 856extern int bgp_get (struct bgp **, as_t *, const char *);
857extern int bgp_delete (struct bgp *);
718e3744 858
94f2b392 859extern int bgp_flag_set (struct bgp *, int);
860extern int bgp_flag_unset (struct bgp *, int);
861extern int bgp_flag_check (struct bgp *, int);
718e3744 862
0088b5dc
SH		 863extern void bgp_lock (struct bgp *);
864extern void bgp_unlock (struct bgp *);
865
94f2b392 866extern int bgp_router_id_set (struct bgp *, struct in_addr *);
718e3744 867
94f2b392 868extern int bgp_cluster_id_set (struct bgp *, struct in_addr *);
869extern int bgp_cluster_id_unset (struct bgp *);
718e3744 870
94f2b392 871extern int bgp_confederation_id_set (struct bgp *, as_t);
872extern int bgp_confederation_id_unset (struct bgp *);
873extern int bgp_confederation_peers_check (struct bgp *, as_t);
718e3744 874
94f2b392 875extern int bgp_confederation_peers_add (struct bgp *, as_t);
876extern int bgp_confederation_peers_remove (struct bgp *, as_t);
718e3744 877
94f2b392 878extern int bgp_timers_set (struct bgp *, u_int32_t, u_int32_t);
879extern int bgp_timers_unset (struct bgp *);
718e3744 880
94f2b392 881extern int bgp_default_local_preference_set (struct bgp *, u_int32_t);
882extern int bgp_default_local_preference_unset (struct bgp *);
718e3744 883
94f2b392 884extern int peer_rsclient_active (struct peer *);
fee0f4c6 885
94f2b392 886extern int peer_remote_as (struct bgp *, union sockunion *, as_t *, afi_t, safi_t);
887extern int peer_group_remote_as (struct bgp *, const char *, as_t *);
888extern int peer_delete (struct peer *peer);
889extern int peer_group_delete (struct peer_group *);
890extern int peer_group_remote_as_delete (struct peer_group *);
718e3744 891
94f2b392 892extern int peer_activate (struct peer *, afi_t, safi_t);
893extern int peer_deactivate (struct peer *, afi_t, safi_t);
718e3744 894
94f2b392 895extern int peer_group_bind (struct bgp *, union sockunion *, struct peer_group *,
718e3744 896 afi_t, safi_t, as_t *);
94f2b392 897extern int peer_group_unbind (struct bgp *, struct peer *, struct peer_group *,
718e3744 898 afi_t, safi_t);
899
94f2b392 900extern int peer_flag_set (struct peer *, u_int32_t);
901extern int peer_flag_unset (struct peer *, u_int32_t);
718e3744 902
94f2b392 903extern int peer_af_flag_set (struct peer *, afi_t, safi_t, u_int32_t);
904extern int peer_af_flag_unset (struct peer *, afi_t, safi_t, u_int32_t);
905extern int peer_af_flag_check (struct peer *, afi_t, safi_t, u_int32_t);
718e3744 906
94f2b392 907extern int peer_ebgp_multihop_set (struct peer *, int);
908extern int peer_ebgp_multihop_unset (struct peer *);
718e3744 909
94f2b392 910extern int peer_description_set (struct peer *, char *);
911extern int peer_description_unset (struct peer *);
718e3744 912
94f2b392 913extern int peer_update_source_if_set (struct peer *, const char *);
914extern int peer_update_source_addr_set (struct peer *, union sockunion *);
915extern int peer_update_source_unset (struct peer *);
718e3744 916
94f2b392 917extern int peer_default_originate_set (struct peer *, afi_t, safi_t, const char *);
918extern int peer_default_originate_unset (struct peer *, afi_t, safi_t);
718e3744 919
94f2b392 920extern int peer_port_set (struct peer *, u_int16_t);
921extern int peer_port_unset (struct peer *);
718e3744 922
94f2b392 923extern int peer_weight_set (struct peer *, u_int16_t);
924extern int peer_weight_unset (struct peer *);
718e3744 925
94f2b392 926extern int peer_timers_set (struct peer *, u_int32_t, u_int32_t);
927extern int peer_timers_unset (struct peer *);
718e3744 928
94f2b392 929extern int peer_timers_connect_set (struct peer *, u_int32_t);
930extern int peer_timers_connect_unset (struct peer *);
718e3744 931
94f2b392 932extern int peer_advertise_interval_set (struct peer *, u_int32_t);
933extern int peer_advertise_interval_unset (struct peer *);
718e3744 934
94f2b392 935extern int peer_interface_set (struct peer *, const char *);
936extern int peer_interface_unset (struct peer *);
718e3744 937
94f2b392 938extern int peer_distribute_set (struct peer *, afi_t, safi_t, int, const char *);
939extern int peer_distribute_unset (struct peer *, afi_t, safi_t, int);
718e3744 940
94f2b392 941extern int peer_allowas_in_set (struct peer *, afi_t, safi_t, int);
942extern int peer_allowas_in_unset (struct peer *, afi_t, safi_t);
718e3744 943
94f2b392 944extern int peer_local_as_set (struct peer *, as_t, int);
945extern int peer_local_as_unset (struct peer *);
718e3744 946
94f2b392 947extern int peer_prefix_list_set (struct peer *, afi_t, safi_t, int, const char *);
948extern int peer_prefix_list_unset (struct peer *, afi_t, safi_t, int);
718e3744 949
94f2b392 950extern int peer_aslist_set (struct peer *, afi_t, safi_t, int, const char *);
951extern int peer_aslist_unset (struct peer *,afi_t, safi_t, int);
718e3744 952
94f2b392 953extern int peer_route_map_set (struct peer *, afi_t, safi_t, int, const char *);
954extern int peer_route_map_unset (struct peer *, afi_t, safi_t, int);
718e3744 955
94f2b392 956extern int peer_unsuppress_map_set (struct peer *, afi_t, safi_t, const char *);
0df7c91f
PJ		 957
958extern int peer_password_set (struct peer *, const char *);
959extern int peer_password_unset (struct peer *);
960
94f2b392 961extern int peer_unsuppress_map_unset (struct peer *, afi_t, safi_t);
718e3744 962
94f2b392 963extern int peer_maximum_prefix_set (struct peer *, afi_t, safi_t, u_int32_t, u_char, int, u_int16_t);
964extern int peer_maximum_prefix_unset (struct peer *, afi_t, safi_t);
718e3744 965
94f2b392 966extern int peer_clear (struct peer *);
967extern int peer_clear_soft (struct peer *, afi_t, safi_t, enum bgp_clear_type);
93406d87 968
fa411a21
NH		 969extern int peer_ttl_security_hops_set (struct peer *, int);
970extern int peer_ttl_security_hops_unset (struct peer *);
971
00d252cb 972#endif /* _QUAGGA_BGPD_H */
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