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bgpd: remove calls to peer_sort() from fast-path
[mirror_frr.git] / bgpd / bgpd.h
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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)
62};
63
64/* BGP instance structure. */
65struct bgp
66{
67 /* AS number of this BGP instance. */
68 as_t as;
69
70 /* Name of this BGP instance. */
71 char *name;
200df115 72
0088b5dc
SH		 73 /* Reference count to allow peer_delete to finish after bgp_delete */
74 int lock;
75
718e3744 76 /* Self peer. */
77 struct peer *peer_self;
78
79 /* BGP peer. */
80 struct list *peer;
81
82 /* BGP peer group. */
83 struct list *group;
84
fee0f4c6 85 /* BGP route-server-clients. */
86 struct list *rsclient;
87
718e3744 88 /* BGP configuration. */
89 u_int16_t config;
90#define BGP_CONFIG_ROUTER_ID (1 << 0)
91#define BGP_CONFIG_CLUSTER_ID (1 << 1)
92#define BGP_CONFIG_CONFEDERATION (1 << 2)
718e3744 93
94 /* BGP router identifier. */
95 struct in_addr router_id;
18a6dce6 96 struct in_addr router_id_static;
718e3744 97
98 /* BGP route reflector cluster ID. */
99 struct in_addr cluster_id;
100
101 /* BGP confederation information. */
102 as_t confed_id;
103 as_t *confed_peers;
104 int confed_peers_cnt;
105
106 /* BGP flags. */
107 u_int16_t flags;
108#define BGP_FLAG_ALWAYS_COMPARE_MED (1 << 0)
109#define BGP_FLAG_DETERMINISTIC_MED (1 << 1)
110#define BGP_FLAG_MED_MISSING_AS_WORST (1 << 2)
111#define BGP_FLAG_MED_CONFED (1 << 3)
112#define BGP_FLAG_NO_DEFAULT_IPV4 (1 << 4)
113#define BGP_FLAG_NO_CLIENT_TO_CLIENT (1 << 5)
114#define BGP_FLAG_ENFORCE_FIRST_AS (1 << 6)
115#define BGP_FLAG_COMPARE_ROUTER_ID (1 << 7)
116#define BGP_FLAG_ASPATH_IGNORE (1 << 8)
117#define BGP_FLAG_IMPORT_CHECK (1 << 9)
118#define BGP_FLAG_NO_FAST_EXT_FAILOVER (1 << 10)
848973c7 119#define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1 << 11)
538621f2 120#define BGP_FLAG_GRACEFUL_RESTART (1 << 12)
6811845b 121#define BGP_FLAG_ASPATH_CONFED (1 << 13)
718e3744 122
123 /* BGP Per AF flags */
124 u_int16_t af_flags[AFI_MAX][SAFI_MAX];
125#define BGP_CONFIG_DAMPENING (1 << 0)
126
127 /* Static route configuration. */
128 struct bgp_table *route[AFI_MAX][SAFI_MAX];
129
130 /* Aggregate address configuration. */
131 struct bgp_table *aggregate[AFI_MAX][SAFI_MAX];
132
133 /* BGP routing information base. */
134 struct bgp_table *rib[AFI_MAX][SAFI_MAX];
135
136 /* BGP redistribute configuration. */
137 u_char redist[AFI_MAX][ZEBRA_ROUTE_MAX];
138
139 /* BGP redistribute metric configuration. */
140 u_char redist_metric_flag[AFI_MAX][ZEBRA_ROUTE_MAX];
141 u_int32_t redist_metric[AFI_MAX][ZEBRA_ROUTE_MAX];
142
143 /* BGP redistribute route-map. */
144 struct
145 {
146 char *name;
147 struct route_map *map;
148 } rmap[AFI_MAX][ZEBRA_ROUTE_MAX];
149
150 /* BGP distance configuration. */
151 u_char distance_ebgp;
152 u_char distance_ibgp;
153 u_char distance_local;
154
155 /* BGP default local-preference. */
156 u_int32_t default_local_pref;
157
158 /* BGP default timer. */
159 u_int32_t default_holdtime;
160 u_int32_t default_keepalive;
538621f2 161
162 /* BGP graceful restart */
93406d87 163 u_int32_t restart_time;
164 u_int32_t stalepath_time;
165b5fff
JB		 165
166 /* Maximum-paths configuration */
167 struct bgp_maxpaths_cfg {
168 u_int16_t maxpaths_ebgp;
169 u_int16_t maxpaths_ibgp;
170 } maxpaths[AFI_MAX][SAFI_MAX];
718e3744 171};
172
173/* BGP peer-group support. */
174struct peer_group
175{
176 /* Name of the peer-group. */
177 char *name;
178
179 /* Pointer to BGP. */
180 struct bgp *bgp;
181
182 /* Peer-group client list. */
183 struct list *peer;
184
185 /* Peer-group config */
186 struct peer *conf;
187};
188
189/* BGP Notify message format. */
190struct bgp_notify
191{
192 u_char code;
193 u_char subcode;
194 char *data;
195 bgp_size_t length;
196};
197
198/* Next hop self address. */
199struct bgp_nexthop
200{
201 struct interface *ifp;
202 struct in_addr v4;
203#ifdef HAVE_IPV6
204 struct in6_addr v6_global;
205 struct in6_addr v6_local;
206#endif /* HAVE_IPV6 */
207};
208
209/* BGP router distinguisher value. */
210#define BGP_RD_SIZE 8
211
212struct bgp_rd
213{
214 u_char val[BGP_RD_SIZE];
215};
216
fee0f4c6 217#define RMAP_IN 0
218#define RMAP_OUT 1
219#define RMAP_IMPORT 2
220#define RMAP_EXPORT 3
221#define RMAP_MAX 4
222
718e3744 223/* BGP filter structure. */
224struct bgp_filter
225{
226 /* Distribute-list. */
227 struct
228 {
229 char *name;
230 struct access_list *alist;
231 } dlist[FILTER_MAX];
232
233 /* Prefix-list. */
234 struct
235 {
236 char *name;
237 struct prefix_list *plist;
238 } plist[FILTER_MAX];
239
240 /* Filter-list. */
241 struct
242 {
243 char *name;
244 struct as_list *aslist;
245 } aslist[FILTER_MAX];
246
247 /* Route-map. */
248 struct
249 {
250 char *name;
251 struct route_map *map;
fee0f4c6 252 } map[RMAP_MAX];
718e3744 253
254 /* Unsuppress-map. */
255 struct
256 {
257 char *name;
258 struct route_map *map;
259 } usmap;
260};
261
6d85b15b
JBD		 262/* IBGP/EBGP identifier. We also have a CONFED peer, which is to say,
263 a peer who's AS is part of our Confederation. */
264typedef enum
265{
266 BGP_PEER_IBGP = 1,
267 BGP_PEER_EBGP,
268 BGP_PEER_INTERNAL,
269 BGP_PEER_CONFED,
270} bgp_peer_sort_t;
271
718e3744 272/* BGP neighbor structure. */
273struct peer
274{
275 /* BGP structure. */
276 struct bgp *bgp;
277
200df115 278 /* reference count, primarily to allow bgp_process'ing of route_node's
279 * to be done after a struct peer is deleted.
280 *
281 * named 'lock' for hysterical reasons within Quagga.
282 */
283 int lock;
284
718e3744 285 /* BGP peer group. */
286 struct peer_group *group;
287 u_char af_group[AFI_MAX][SAFI_MAX];
288
289 /* Peer's remote AS number. */
290 as_t as;
291
292 /* Peer's local AS number. */
293 as_t local_as;
294
6d85b15b
JBD		 295 bgp_peer_sort_t sort;
296
718e3744 297 /* Peer's Change local AS number. */
298 as_t change_local_as;
299
300 /* Remote router ID. */
301 struct in_addr remote_id;
302
303 /* Local router ID. */
304 struct in_addr local_id;
305
fee0f4c6 306 /* Peer specific RIB when configured as route-server-client. */
307 struct bgp_table *rib[AFI_MAX][SAFI_MAX];
308
718e3744 309 /* Packet receive and send buffer. */
310 struct stream *ibuf;
311 struct stream_fifo *obuf;
312 struct stream *work;
313
314 /* Status of the peer. */
315 int status;
316 int ostatus;
317
0b2aa3a0
PJ		 318 /* Peer index, used for dumping TABLE_DUMP_V2 format */
319 uint16_t table_dump_index;
320
718e3744 321 /* Peer information */
eb821189 322 int fd; /* File descriptor */
323 int ttl; /* TTL of TCP connection to the peer. */
fa411a21 324 int gtsm_hops; /* minimum hopcount to peer */
eb821189 325 char *desc; /* Description of the peer. */
326 unsigned short port; /* Destination port for peer */
327 char *host; /* Printable address of the peer. */
328 union sockunion su; /* Sockunion address of the peer. */
329 time_t uptime; /* Last Up/Down time */
330 time_t readtime; /* Last read time */
331 time_t resettime; /* Last reset time */
718e3744 332
eb821189 333 unsigned int ifindex; /* ifindex of the BGP connection. */
334 char *ifname; /* bind interface name. */
335 char *update_if;
336 union sockunion *update_source;
337 struct zlog *log;
eb821189 338
339 union sockunion *su_local; /* Sockunion of local address. */
340 union sockunion *su_remote; /* Sockunion of remote address. */
341 int shared_network; /* Is this peer shared same network. */
342 struct bgp_nexthop nexthop; /* Nexthop */
718e3744 343
344 /* Peer address family configuration. */
345 u_char afc[AFI_MAX][SAFI_MAX];
346 u_char afc_nego[AFI_MAX][SAFI_MAX];
347 u_char afc_adv[AFI_MAX][SAFI_MAX];
348 u_char afc_recv[AFI_MAX][SAFI_MAX];
349
0a486e5f 350 /* Capability flags (reset in bgp_stop) */
0b2aa3a0 351 u_int16_t cap;
718e3744 352#define PEER_CAP_REFRESH_ADV (1 << 0) /* refresh advertised */
353#define PEER_CAP_REFRESH_OLD_RCV (1 << 1) /* refresh old received */
354#define PEER_CAP_REFRESH_NEW_RCV (1 << 2) /* refresh rfc received */
355#define PEER_CAP_DYNAMIC_ADV (1 << 3) /* dynamic advertised */
356#define PEER_CAP_DYNAMIC_RCV (1 << 4) /* dynamic received */
538621f2 357#define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */
358#define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */
0b2aa3a0
PJ		 359#define PEER_CAP_AS4_ADV (1 << 7) /* as4 advertised */
360#define PEER_CAP_AS4_RCV (1 << 8) /* as4 received */
718e3744 361
0a486e5f 362 /* Capability flags (reset in bgp_stop) */
718e3744 363 u_int16_t af_cap[AFI_MAX][SAFI_MAX];
364#define PEER_CAP_ORF_PREFIX_SM_ADV (1 << 0) /* send-mode advertised */
365#define PEER_CAP_ORF_PREFIX_RM_ADV (1 << 1) /* receive-mode advertised */
366#define PEER_CAP_ORF_PREFIX_SM_RCV (1 << 2) /* send-mode received */
367#define PEER_CAP_ORF_PREFIX_RM_RCV (1 << 3) /* receive-mode received */
368#define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1 << 4) /* send-mode received */
369#define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1 << 5) /* receive-mode received */
93406d87 370#define PEER_CAP_RESTART_AF_RCV (1 << 6) /* graceful restart afi/safi received */
371#define PEER_CAP_RESTART_AF_PRESERVE_RCV (1 << 7) /* graceful restart afi/safi F-bit received */
718e3744 372
373 /* Global configuration flags. */
374 u_int32_t flags;
375#define PEER_FLAG_PASSIVE (1 << 0) /* passive mode */
376#define PEER_FLAG_SHUTDOWN (1 << 1) /* shutdown */
377#define PEER_FLAG_DONT_CAPABILITY (1 << 2) /* dont-capability */
378#define PEER_FLAG_OVERRIDE_CAPABILITY (1 << 3) /* override-capability */
379#define PEER_FLAG_STRICT_CAP_MATCH (1 << 4) /* strict-match */
c9502438 380#define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 5) /* dynamic capability */
6ffd2079 381#define PEER_FLAG_DISABLE_CONNECTED_CHECK (1 << 6) /* disable-connected-check */
c9502438 382#define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 7) /* local-as no-prepend */
718e3744 383
93406d87 384 /* NSF mode (graceful restart) */
385 u_char nsf[AFI_MAX][SAFI_MAX];
386
718e3744 387 /* Per AF configuration flags. */
388 u_int32_t af_flags[AFI_MAX][SAFI_MAX];
389#define PEER_FLAG_SEND_COMMUNITY (1 << 0) /* send-community */
390#define PEER_FLAG_SEND_EXT_COMMUNITY (1 << 1) /* send-community ext. */
391#define PEER_FLAG_NEXTHOP_SELF (1 << 2) /* next-hop-self */
392#define PEER_FLAG_REFLECTOR_CLIENT (1 << 3) /* reflector-client */
393#define PEER_FLAG_RSERVER_CLIENT (1 << 4) /* route-server-client */
394#define PEER_FLAG_SOFT_RECONFIG (1 << 5) /* soft-reconfiguration */
395#define PEER_FLAG_AS_PATH_UNCHANGED (1 << 6) /* transparent-as */
396#define PEER_FLAG_NEXTHOP_UNCHANGED (1 << 7) /* transparent-next-hop */
397#define PEER_FLAG_MED_UNCHANGED (1 << 8) /* transparent-next-hop */
398#define PEER_FLAG_DEFAULT_ORIGINATE (1 << 9) /* default-originate */
399#define PEER_FLAG_REMOVE_PRIVATE_AS (1 << 10) /* remove-private-as */
400#define PEER_FLAG_ALLOWAS_IN (1 << 11) /* set allowas-in */
401#define PEER_FLAG_ORF_PREFIX_SM (1 << 12) /* orf capability send-mode */
402#define PEER_FLAG_ORF_PREFIX_RM (1 << 13) /* orf capability receive-mode */
403#define PEER_FLAG_MAX_PREFIX (1 << 14) /* maximum prefix */
404#define PEER_FLAG_MAX_PREFIX_WARNING (1 << 15) /* maximum prefix warning-only */
0df7c91f
PJ		 405#define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1 << 16) /* leave link-local nexthop unchanged */
406
407 /* MD5 password */
408 char *password;
718e3744 409
410 /* default-originate route-map. */
411 struct
412 {
413 char *name;
414 struct route_map *map;
415 } default_rmap[AFI_MAX][SAFI_MAX];
416
417 /* Peer status flags. */
418 u_int16_t sflags;
419#define PEER_STATUS_ACCEPT_PEER (1 << 0) /* accept peer */
420#define PEER_STATUS_PREFIX_OVERFLOW (1 << 1) /* prefix-overflow */
421#define PEER_STATUS_CAPABILITY_OPEN (1 << 2) /* capability open send */
422#define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */
423#define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */
93406d87 424#define PEER_STATUS_NSF_MODE (1 << 5) /* NSF aware peer */
425#define PEER_STATUS_NSF_WAIT (1 << 6) /* wait comeback peer */
718e3744 426
0a486e5f 427 /* Peer status af flags (reset in bgp_stop) */
718e3744 428 u_int16_t af_sflags[AFI_MAX][SAFI_MAX];
429#define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */
430#define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */
431#define PEER_STATUS_DEFAULT_ORIGINATE (1 << 2) /* default-originate peer */
e0701b79 432#define PEER_STATUS_PREFIX_THRESHOLD (1 << 3) /* exceed prefix-threshold */
433#define PEER_STATUS_PREFIX_LIMIT (1 << 4) /* exceed prefix-limit */
93406d87 434#define PEER_STATUS_EOR_SEND (1 << 5) /* end-of-rib send to peer */
435#define PEER_STATUS_EOR_RECEIVED (1 << 6) /* end-of-rib received from peer */
e0701b79 436
718e3744 437 /* Default attribute value for the peer. */
438 u_int32_t config;
439#define PEER_CONFIG_WEIGHT (1 << 0) /* Default weight. */
440#define PEER_CONFIG_TIMER (1 << 1) /* keepalive & holdtime */
441#define PEER_CONFIG_CONNECT (1 << 2) /* connect */
442#define PEER_CONFIG_ROUTEADV (1 << 3) /* route advertise */
443 u_int32_t weight;
444 u_int32_t holdtime;
445 u_int32_t keepalive;
446 u_int32_t connect;
447 u_int32_t routeadv;
448
449 /* Timer values. */
450 u_int32_t v_start;
451 u_int32_t v_connect;
452 u_int32_t v_holdtime;
453 u_int32_t v_keepalive;
454 u_int32_t v_asorig;
455 u_int32_t v_routeadv;
0a486e5f 456 u_int32_t v_pmax_restart;
93406d87 457 u_int32_t v_gr_restart;
718e3744 458
459 /* Threads. */
460 struct thread *t_read;
461 struct thread *t_write;
462 struct thread *t_start;
463 struct thread *t_connect;
464 struct thread *t_holdtime;
465 struct thread *t_keepalive;
466 struct thread *t_asorig;
467 struct thread *t_routeadv;
0a486e5f 468 struct thread *t_pmax_restart;
93406d87 469 struct thread *t_gr_restart;
470 struct thread *t_gr_stale;
64e580a7
PJ		 471
472 /* workqueues */
473 struct work_queue *clear_node_queue;
474
718e3744 475 /* Statistics field */
476 u_int32_t open_in; /* Open message input count */
477 u_int32_t open_out; /* Open message output count */
478 u_int32_t update_in; /* Update message input count */
479 u_int32_t update_out; /* Update message ouput count */
480 time_t update_time; /* Update message received time. */
481 u_int32_t keepalive_in; /* Keepalive input count */
482 u_int32_t keepalive_out; /* Keepalive output count */
483 u_int32_t notify_in; /* Notify input count */
484 u_int32_t notify_out; /* Notify output count */
485 u_int32_t refresh_in; /* Route Refresh input count */
486 u_int32_t refresh_out; /* Route Refresh output count */
487 u_int32_t dynamic_cap_in; /* Dynamic Capability input count. */
488 u_int32_t dynamic_cap_out; /* Dynamic Capability output count. */
489
490 /* BGP state count */
491 u_int32_t established; /* Established */
492 u_int32_t dropped; /* Dropped */
493
494 /* Syncronization list and time. */
495 struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX];
496 time_t synctime;
497
498 /* Send prefix count. */
499 unsigned long scount[AFI_MAX][SAFI_MAX];
500
501 /* Announcement attribute hash. */
502 struct hash *hash[AFI_MAX][SAFI_MAX];
503
504 /* Notify data. */
505 struct bgp_notify notify;
506
507 /* Whole packet size to be read. */
508 unsigned long packet_size;
509
510 /* Filter structure. */
511 struct bgp_filter filter[AFI_MAX][SAFI_MAX];
512
513 /* ORF Prefix-list */
514 struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX];
515
516 /* Prefix count. */
517 unsigned long pcount[AFI_MAX][SAFI_MAX];
518
519 /* Max prefix count. */
520 unsigned long pmax[AFI_MAX][SAFI_MAX];
e0701b79 521 u_char pmax_threshold[AFI_MAX][SAFI_MAX];
0a486e5f 522 u_int16_t pmax_restart[AFI_MAX][SAFI_MAX];
e0701b79 523#define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75
718e3744 524
525 /* allowas-in. */
526 char allowas_in[AFI_MAX][SAFI_MAX];
ac41b2a2 527
e0701b79 528 /* peer reset cause */
529 char last_reset;
530#define PEER_DOWN_RID_CHANGE 1 /* bgp router-id command */
531#define PEER_DOWN_REMOTE_AS_CHANGE 2 /* neighbor remote-as command */
532#define PEER_DOWN_LOCAL_AS_CHANGE 3 /* neighbor local-as command */
533#define PEER_DOWN_CLID_CHANGE 4 /* bgp cluster-id command */
534#define PEER_DOWN_CONFED_ID_CHANGE 5 /* bgp confederation identifier command */
535#define PEER_DOWN_CONFED_PEER_CHANGE 6 /* bgp confederation peer command */
536#define PEER_DOWN_RR_CLIENT_CHANGE 7 /* neighbor route-reflector-client command */
537#define PEER_DOWN_RS_CLIENT_CHANGE 8 /* neighbor route-server-client command */
538#define PEER_DOWN_UPDATE_SOURCE_CHANGE 9 /* neighbor update-source command */
539#define PEER_DOWN_AF_ACTIVATE 10 /* neighbor activate command */
540#define PEER_DOWN_USER_SHUTDOWN 11 /* neighbor shutdown command */
541#define PEER_DOWN_USER_RESET 12 /* clear ip bgp command */
542#define PEER_DOWN_NOTIFY_RECEIVED 13 /* notification received */
543#define PEER_DOWN_NOTIFY_SEND 14 /* notification send */
544#define PEER_DOWN_CLOSE_SESSION 15 /* tcp session close */
545#define PEER_DOWN_NEIGHBOR_DELETE 16 /* neghbor delete */
546#define PEER_DOWN_RMAP_BIND 17 /* neghbor peer-group command */
547#define PEER_DOWN_RMAP_UNBIND 18 /* no neighbor peer-group command */
548#define PEER_DOWN_CAPABILITY_CHANGE 19 /* neighbor capability command */
549#define PEER_DOWN_PASSIVE_CHANGE 20 /* neighbor passive command */
550#define PEER_DOWN_MULTIHOP_CHANGE 21 /* neighbor multihop command */
93406d87 551#define PEER_DOWN_NSF_CLOSE_SESSION 22 /* NSF tcp session close */
e0701b79 552
ac41b2a2 553 /* The kind of route-map Flags.*/
554 u_char rmap_type;
555#define PEER_RMAP_TYPE_IN (1 << 0) /* neighbor route-map in */
556#define PEER_RMAP_TYPE_OUT (1 << 1) /* neighbor route-map out */
557#define PEER_RMAP_TYPE_NETWORK (1 << 2) /* network route-map */
558#define PEER_RMAP_TYPE_REDISTRIBUTE (1 << 3) /* redistribute route-map */
559#define PEER_RMAP_TYPE_DEFAULT (1 << 4) /* default-originate route-map */
560#define PEER_RMAP_TYPE_NOSET (1 << 5) /* not allow to set commands */
fee0f4c6 561#define PEER_RMAP_TYPE_IMPORT (1 << 6) /* neighbor route-map import */
562#define PEER_RMAP_TYPE_EXPORT (1 << 7) /* neighbor route-map export */
718e3744 563};
564
0df7c91f
PJ		 565#define PEER_PASSWORD_MINLEN (1)
566#define PEER_PASSWORD_MAXLEN (80)
567
718e3744 568/* This structure's member directly points incoming packet data
569 stream. */
570struct bgp_nlri
571{
572 /* AFI. */
573 afi_t afi;
574
575 /* SAFI. */
576 safi_t safi;
577
578 /* Pointer to NLRI byte stream. */
579 u_char *nlri;
580
581 /* Length of whole NLRI. */
582 bgp_size_t length;
583};
584
585/* BGP versions. */
586#define BGP_VERSION_4 4
718e3744 587
588/* Default BGP port number. */
589#define BGP_PORT_DEFAULT 179
590
591/* BGP message header and packet size. */
592#define BGP_MARKER_SIZE 16
593#define BGP_HEADER_SIZE 19
594#define BGP_MAX_PACKET_SIZE 4096
595
596/* BGP minimum message size. */
597#define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10)
598#define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4)
599#define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2)
600#define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0)
601#define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4)
602#define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3)
603
604/* BGP message types. */
605#define BGP_MSG_OPEN 1
606#define BGP_MSG_UPDATE 2
607#define BGP_MSG_NOTIFY 3
608#define BGP_MSG_KEEPALIVE 4
609#define BGP_MSG_ROUTE_REFRESH_NEW 5
610#define BGP_MSG_CAPABILITY 6
611#define BGP_MSG_ROUTE_REFRESH_OLD 128
612
613/* BGP open optional parameter. */
614#define BGP_OPEN_OPT_AUTH 1
615#define BGP_OPEN_OPT_CAP 2
616
617/* BGP4 attribute type codes. */
618#define BGP_ATTR_ORIGIN 1
619#define BGP_ATTR_AS_PATH 2
620#define BGP_ATTR_NEXT_HOP 3
621#define BGP_ATTR_MULTI_EXIT_DISC 4
622#define BGP_ATTR_LOCAL_PREF 5
623#define BGP_ATTR_ATOMIC_AGGREGATE 6
624#define BGP_ATTR_AGGREGATOR 7
625#define BGP_ATTR_COMMUNITIES 8
626#define BGP_ATTR_ORIGINATOR_ID 9
627#define BGP_ATTR_CLUSTER_LIST 10
628#define BGP_ATTR_DPA 11
629#define BGP_ATTR_ADVERTISER 12
630#define BGP_ATTR_RCID_PATH 13
631#define BGP_ATTR_MP_REACH_NLRI 14
632#define BGP_ATTR_MP_UNREACH_NLRI 15
633#define BGP_ATTR_EXT_COMMUNITIES 16
0b2aa3a0
PJ		 634#define BGP_ATTR_AS4_PATH 17
635#define BGP_ATTR_AS4_AGGREGATOR 18
41367172 636#define BGP_ATTR_AS_PATHLIMIT 21
718e3744 637
638/* BGP update origin. */
639#define BGP_ORIGIN_IGP 0
640#define BGP_ORIGIN_EGP 1
641#define BGP_ORIGIN_INCOMPLETE 2
642
643/* BGP notify message codes. */
644#define BGP_NOTIFY_HEADER_ERR 1
645#define BGP_NOTIFY_OPEN_ERR 2
646#define BGP_NOTIFY_UPDATE_ERR 3
647#define BGP_NOTIFY_HOLD_ERR 4
648#define BGP_NOTIFY_FSM_ERR 5
649#define BGP_NOTIFY_CEASE 6
650#define BGP_NOTIFY_CAPABILITY_ERR 7
651#define BGP_NOTIFY_MAX 8
652
4b4e07d2
DT		 653#define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0
654
718e3744 655/* BGP_NOTIFY_HEADER_ERR sub codes. */
656#define BGP_NOTIFY_HEADER_NOT_SYNC 1
657#define BGP_NOTIFY_HEADER_BAD_MESLEN 2
658#define BGP_NOTIFY_HEADER_BAD_MESTYPE 3
659#define BGP_NOTIFY_HEADER_MAX 4
660
661/* BGP_NOTIFY_OPEN_ERR sub codes. */
662#define BGP_NOTIFY_OPEN_UNSUP_VERSION 1
663#define BGP_NOTIFY_OPEN_BAD_PEER_AS 2
664#define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3
665#define BGP_NOTIFY_OPEN_UNSUP_PARAM 4
666#define BGP_NOTIFY_OPEN_AUTH_FAILURE 5
667#define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6
668#define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7
669#define BGP_NOTIFY_OPEN_MAX 8
670
671/* BGP_NOTIFY_UPDATE_ERR sub codes. */
672#define BGP_NOTIFY_UPDATE_MAL_ATTR 1
673#define BGP_NOTIFY_UPDATE_UNREC_ATTR 2
674#define BGP_NOTIFY_UPDATE_MISS_ATTR 3
675#define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4
676#define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5
677#define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6
678#define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7
679#define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8
680#define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9
681#define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10
682#define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11
683#define BGP_NOTIFY_UPDATE_MAX 12
684
4b4e07d2 685/* BGP_NOTIFY_CEASE sub codes (RFC 4486). */
718e3744 686#define BGP_NOTIFY_CEASE_MAX_PREFIX 1
687#define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2
688#define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3
689#define BGP_NOTIFY_CEASE_ADMIN_RESET 4
690#define BGP_NOTIFY_CEASE_CONNECT_REJECT 5
691#define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6
545acafb 692#define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7
693#define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8
694#define BGP_NOTIFY_CEASE_MAX 9
718e3744 695
696/* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */
697#define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1
698#define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2
699#define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3
700#define BGP_NOTIFY_CAPABILITY_MAX 4
701
702/* BGP finite state machine status. */
703#define Idle 1
704#define Connect 2
705#define Active 3
706#define OpenSent 4
707#define OpenConfirm 5
708#define Established 6
ca058a30
PJ		 709#define Clearing 7
710#define Deleted 8
711#define BGP_STATUS_MAX 9
718e3744 712
713/* BGP finite state machine events. */
714#define BGP_Start 1
715#define BGP_Stop 2
716#define TCP_connection_open 3
717#define TCP_connection_closed 4
718#define TCP_connection_open_failed 5
719#define TCP_fatal_error 6
720#define ConnectRetry_timer_expired 7
721#define Hold_Timer_expired 8
722#define KeepAlive_timer_expired 9
723#define Receive_OPEN_message 10
724#define Receive_KEEPALIVE_message 11
725#define Receive_UPDATE_message 12
726#define Receive_NOTIFICATION_message 13
ca058a30
PJ		 727#define Clearing_Completed 14
728#define BGP_EVENTS_MAX 15
718e3744 729
730/* BGP timers default value. */
731#define BGP_INIT_START_TIMER 5
732#define BGP_ERROR_START_TIMER 30
733#define BGP_DEFAULT_HOLDTIME 180
734#define BGP_DEFAULT_KEEPALIVE 60
735#define BGP_DEFAULT_ASORIGINATE 15
736#define BGP_DEFAULT_EBGP_ROUTEADV 30
737#define BGP_DEFAULT_IBGP_ROUTEADV 5
738#define BGP_CLEAR_CONNECT_RETRY 20
739#define BGP_DEFAULT_CONNECT_RETRY 120
740
741/* BGP default local preference. */
742#define BGP_DEFAULT_LOCAL_PREF 100
743
538621f2 744/* BGP graceful restart */
745#define BGP_DEFAULT_RESTART_TIME 120
746#define BGP_DEFAULT_STALEPATH_TIME 360
747
42e6d745
DO		 748/* RFC4364 */
749#define SAFI_MPLS_LABELED_VPN 128
718e3744 750
751/* Max TTL value. */
752#define TTL_MAX 255
753
754/* BGP uptime string length. */
755#define BGP_UPTIME_LEN 25
756
757/* Default configuration settings for bgpd. */
758#define BGP_VTY_PORT 2605
718e3744 759#define BGP_DEFAULT_CONFIG "bgpd.conf"
760
761/* Check AS path loop when we send NLRI. */
762/* #define BGP_SEND_ASPATH_CHECK */
763
718e3744 764/* Flag for peer_clear_soft(). */
765enum bgp_clear_type
766{
767 BGP_CLEAR_SOFT_NONE,
768 BGP_CLEAR_SOFT_OUT,
769 BGP_CLEAR_SOFT_IN,
770 BGP_CLEAR_SOFT_BOTH,
fee0f4c6 771 BGP_CLEAR_SOFT_IN_ORF_PREFIX,
772 BGP_CLEAR_SOFT_RSCLIENT
718e3744 773};
774
775/* Macros. */
776#define BGP_INPUT(P) ((P)->ibuf)
777#define BGP_INPUT_PNT(P) (STREAM_PNT(BGP_INPUT(P)))
778
718e3744 779/* Count prefix size from mask length */
780#define PSIZE(a) (((a) + 7) / (8))
781
782/* BGP error codes. */
783#define BGP_SUCCESS 0
784#define BGP_ERR_INVALID_VALUE -1
785#define BGP_ERR_INVALID_FLAG -2
786#define BGP_ERR_INVALID_AS -3
787#define BGP_ERR_INVALID_BGP -4
788#define BGP_ERR_PEER_GROUP_MEMBER -5
789#define BGP_ERR_MULTIPLE_INSTANCE_USED -6
790#define BGP_ERR_PEER_GROUP_MEMBER_EXISTS -7
791#define BGP_ERR_PEER_BELONGS_TO_GROUP -8
792#define BGP_ERR_PEER_GROUP_AF_UNCONFIGURED -9
793#define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -10
794#define BGP_ERR_PEER_GROUP_CANT_CHANGE -11
795#define BGP_ERR_PEER_GROUP_MISMATCH -12
796#define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -13
797#define BGP_ERR_MULTIPLE_INSTANCE_NOT_SET -14
798#define BGP_ERR_AS_MISMATCH -15
799#define BGP_ERR_PEER_INACTIVE -16
800#define BGP_ERR_INVALID_FOR_PEER_GROUP_MEMBER -17
801#define BGP_ERR_PEER_GROUP_HAS_THE_FLAG -18
802#define BGP_ERR_PEER_FLAG_CONFLICT -19
803#define BGP_ERR_PEER_GROUP_SHUTDOWN -20
804#define BGP_ERR_PEER_FILTER_CONFLICT -21
805#define BGP_ERR_NOT_INTERNAL_PEER -22
806#define BGP_ERR_REMOVE_PRIVATE_AS -23
807#define BGP_ERR_AF_UNCONFIGURED -24
808#define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -25
809#define BGP_ERR_INSTANCE_MISMATCH -26
810#define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -27
811#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -28
0df7c91f 812#define BGP_ERR_TCPSIG_FAILED -29
fa411a21 813#define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -30
f5a4827d
SH		 814#define BGP_ERR_NO_IBGP_WITH_TTLHACK -31
815#define BGP_ERR_MAX -32
718e3744 816
817extern struct bgp_master *bm;
818
819extern struct thread_master *master;
820
821/* Prototypes. */
94f2b392 822extern void bgp_terminate (void);
823extern void bgp_reset (void);
65957886 824extern time_t bgp_clock (void);
94f2b392 825extern void bgp_zclient_reset (void);
826extern int bgp_nexthop_set (union sockunion *, union sockunion *,
718e3744 827 struct bgp_nexthop *, struct peer *);
94f2b392 828extern struct bgp *bgp_get_default (void);
829extern struct bgp *bgp_lookup (as_t, const char *);
830extern struct bgp *bgp_lookup_by_name (const char *);
831extern struct peer *peer_lookup (struct bgp *, union sockunion *);
832extern struct peer_group *peer_group_lookup (struct bgp *, const char *);
833extern struct peer_group *peer_group_get (struct bgp *, const char *);
834extern struct peer *peer_lookup_with_open (union sockunion *, as_t, struct in_addr *,
718e3744 835 int *);
200df115 836extern struct peer *peer_lock (struct peer *);
837extern struct peer *peer_unlock (struct peer *);
6d85b15b 838extern bgp_peer_sort_t peer_sort (struct peer *peer);
94f2b392 839extern int peer_active (struct peer *);
840extern int peer_active_nego (struct peer *);
841extern struct peer *peer_create_accept (struct bgp *);
842extern char *peer_uptime (time_t, char *, size_t);
843extern int bgp_config_write (struct vty *);
844extern void bgp_config_write_family_header (struct vty *, afi_t, safi_t, int *);
718e3744 845\f
94f2b392 846extern void bgp_master_init (void);
718e3744 847
94f2b392 848extern void bgp_init (void);
7621f336 849extern int bgp_socket_init (void);
94f2b392 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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