Annotation of embedaddon/quagga/bgpd/bgpd.h, revision 1.1.1.3
1.1 misho 1: /* BGP message definition header.
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
17: along with GNU Zebra; see the file COPYING. If not, write to the Free
18: Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
19: 02111-1307, USA. */
20:
21: #ifndef _QUAGGA_BGPD_H
22: #define _QUAGGA_BGPD_H
23:
24: /* For union sockunion. */
25: #include "sockunion.h"
26:
27: /* Typedef BGP specific types. */
28: typedef u_int32_t as_t;
29: typedef u_int16_t as16_t; /* we may still encounter 16 Bit asnums */
30: typedef u_int16_t bgp_size_t;
31:
32: /* BGP master for system wide configurations and variables. */
33: struct bgp_master
34: {
35: /* BGP instance list. */
36: struct list *bgp;
37:
38: /* BGP thread master. */
39: struct thread_master *master;
40:
41: /* work queues */
42: struct work_queue *process_main_queue;
43: struct work_queue *process_rsclient_queue;
44:
45: /* Listening sockets */
46: struct list *listen_sockets;
47:
48: /* BGP port number. */
49: u_int16_t port;
50:
51: /* Listener address */
52: char *address;
53:
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)
1.1.1.3 ! misho 62: #define BGP_OPT_NO_LISTEN (1 << 3)
1.1 misho 63: };
64:
65: /* BGP instance structure. */
66: struct bgp
67: {
68: /* AS number of this BGP instance. */
69: as_t as;
70:
71: /* Name of this BGP instance. */
72: char *name;
73:
74: /* Reference count to allow peer_delete to finish after bgp_delete */
75: int lock;
76:
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:
86: /* BGP route-server-clients. */
87: struct list *rsclient;
88:
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)
94:
95: /* BGP router identifier. */
96: struct in_addr router_id;
97: struct in_addr router_id_static;
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)
120: #define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1 << 11)
121: #define BGP_FLAG_GRACEFUL_RESTART (1 << 12)
122: #define BGP_FLAG_ASPATH_CONFED (1 << 13)
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;
162:
163: /* BGP graceful restart */
164: u_int32_t restart_time;
165: u_int32_t stalepath_time;
1.1.1.2 misho 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];
1.1 misho 172: };
173:
174: /* BGP peer-group support. */
175: struct 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. */
191: struct 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. */
200: struct 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:
213: struct bgp_rd
214: {
215: u_char val[BGP_RD_SIZE];
216: };
217:
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:
224: /* BGP filter structure. */
225: struct 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;
253: } map[RMAP_MAX];
254:
255: /* Unsuppress-map. */
256: struct
257: {
258: char *name;
259: struct route_map *map;
260: } usmap;
261: };
262:
1.1.1.3 ! misho 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. */
! 265: typedef 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:
1.1 misho 273: /* BGP neighbor structure. */
274: struct peer
275: {
276: /* BGP structure. */
277: struct bgp *bgp;
278:
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:
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:
1.1.1.3 ! misho 296: bgp_peer_sort_t sort;
! 297:
1.1 misho 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:
307: /* Peer specific RIB when configured as route-server-client. */
308: struct bgp_table *rib[AFI_MAX][SAFI_MAX];
309:
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:
319: /* Peer index, used for dumping TABLE_DUMP_V2 format */
320: uint16_t table_dump_index;
321:
322: /* Peer information */
323: int fd; /* File descriptor */
324: int ttl; /* TTL of TCP connection to the peer. */
325: int gtsm_hops; /* minimum hopcount to peer */
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 */
333:
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;
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 */
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:
351: /* Capability flags (reset in bgp_stop) */
352: u_int16_t cap;
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 */
358: #define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */
359: #define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */
360: #define PEER_CAP_AS4_ADV (1 << 7) /* as4 advertised */
361: #define PEER_CAP_AS4_RCV (1 << 8) /* as4 received */
362:
363: /* Capability flags (reset in bgp_stop) */
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 */
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 */
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 */
381: #define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 5) /* dynamic capability */
382: #define PEER_FLAG_DISABLE_CONNECTED_CHECK (1 << 6) /* disable-connected-check */
383: #define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 7) /* local-as no-prepend */
1.1.1.3 ! misho 384: #define PEER_FLAG_LOCAL_AS_REPLACE_AS (1 << 8) /* local-as no-prepend replace-as */
1.1 misho 385:
386: /* NSF mode (graceful restart) */
387: u_char nsf[AFI_MAX][SAFI_MAX];
388:
389: /* Per AF configuration flags. */
390: u_int32_t af_flags[AFI_MAX][SAFI_MAX];
391: #define PEER_FLAG_SEND_COMMUNITY (1 << 0) /* send-community */
392: #define PEER_FLAG_SEND_EXT_COMMUNITY (1 << 1) /* send-community ext. */
393: #define PEER_FLAG_NEXTHOP_SELF (1 << 2) /* next-hop-self */
394: #define PEER_FLAG_REFLECTOR_CLIENT (1 << 3) /* reflector-client */
395: #define PEER_FLAG_RSERVER_CLIENT (1 << 4) /* route-server-client */
396: #define PEER_FLAG_SOFT_RECONFIG (1 << 5) /* soft-reconfiguration */
397: #define PEER_FLAG_AS_PATH_UNCHANGED (1 << 6) /* transparent-as */
398: #define PEER_FLAG_NEXTHOP_UNCHANGED (1 << 7) /* transparent-next-hop */
399: #define PEER_FLAG_MED_UNCHANGED (1 << 8) /* transparent-next-hop */
400: #define PEER_FLAG_DEFAULT_ORIGINATE (1 << 9) /* default-originate */
401: #define PEER_FLAG_REMOVE_PRIVATE_AS (1 << 10) /* remove-private-as */
402: #define PEER_FLAG_ALLOWAS_IN (1 << 11) /* set allowas-in */
403: #define PEER_FLAG_ORF_PREFIX_SM (1 << 12) /* orf capability send-mode */
404: #define PEER_FLAG_ORF_PREFIX_RM (1 << 13) /* orf capability receive-mode */
405: #define PEER_FLAG_MAX_PREFIX (1 << 14) /* maximum prefix */
406: #define PEER_FLAG_MAX_PREFIX_WARNING (1 << 15) /* maximum prefix warning-only */
407: #define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1 << 16) /* leave link-local nexthop unchanged */
408:
409: /* MD5 password */
410: char *password;
411:
412: /* default-originate route-map. */
413: struct
414: {
415: char *name;
416: struct route_map *map;
417: } default_rmap[AFI_MAX][SAFI_MAX];
418:
419: /* Peer status flags. */
420: u_int16_t sflags;
421: #define PEER_STATUS_ACCEPT_PEER (1 << 0) /* accept peer */
422: #define PEER_STATUS_PREFIX_OVERFLOW (1 << 1) /* prefix-overflow */
423: #define PEER_STATUS_CAPABILITY_OPEN (1 << 2) /* capability open send */
424: #define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */
425: #define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */
426: #define PEER_STATUS_NSF_MODE (1 << 5) /* NSF aware peer */
427: #define PEER_STATUS_NSF_WAIT (1 << 6) /* wait comeback peer */
428:
429: /* Peer status af flags (reset in bgp_stop) */
430: u_int16_t af_sflags[AFI_MAX][SAFI_MAX];
431: #define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */
432: #define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */
433: #define PEER_STATUS_DEFAULT_ORIGINATE (1 << 2) /* default-originate peer */
434: #define PEER_STATUS_PREFIX_THRESHOLD (1 << 3) /* exceed prefix-threshold */
435: #define PEER_STATUS_PREFIX_LIMIT (1 << 4) /* exceed prefix-limit */
436: #define PEER_STATUS_EOR_SEND (1 << 5) /* end-of-rib send to peer */
437: #define PEER_STATUS_EOR_RECEIVED (1 << 6) /* end-of-rib received from peer */
438:
439: /* Default attribute value for the peer. */
440: u_int32_t config;
441: #define PEER_CONFIG_WEIGHT (1 << 0) /* Default weight. */
442: #define PEER_CONFIG_TIMER (1 << 1) /* keepalive & holdtime */
443: #define PEER_CONFIG_CONNECT (1 << 2) /* connect */
444: #define PEER_CONFIG_ROUTEADV (1 << 3) /* route advertise */
445: u_int32_t weight;
446: u_int32_t holdtime;
447: u_int32_t keepalive;
448: u_int32_t connect;
449: u_int32_t routeadv;
450:
451: /* Timer values. */
452: u_int32_t v_start;
453: u_int32_t v_connect;
454: u_int32_t v_holdtime;
455: u_int32_t v_keepalive;
456: u_int32_t v_asorig;
457: u_int32_t v_routeadv;
458: u_int32_t v_pmax_restart;
459: u_int32_t v_gr_restart;
460:
461: /* Threads. */
462: struct thread *t_read;
463: struct thread *t_write;
464: struct thread *t_start;
465: struct thread *t_connect;
466: struct thread *t_holdtime;
467: struct thread *t_keepalive;
468: struct thread *t_asorig;
469: struct thread *t_routeadv;
470: struct thread *t_pmax_restart;
471: struct thread *t_gr_restart;
472: struct thread *t_gr_stale;
473:
474: /* workqueues */
475: struct work_queue *clear_node_queue;
476:
477: /* Statistics field */
478: u_int32_t open_in; /* Open message input count */
479: u_int32_t open_out; /* Open message output count */
480: u_int32_t update_in; /* Update message input count */
481: u_int32_t update_out; /* Update message ouput count */
482: time_t update_time; /* Update message received time. */
483: u_int32_t keepalive_in; /* Keepalive input count */
484: u_int32_t keepalive_out; /* Keepalive output count */
485: u_int32_t notify_in; /* Notify input count */
486: u_int32_t notify_out; /* Notify output count */
487: u_int32_t refresh_in; /* Route Refresh input count */
488: u_int32_t refresh_out; /* Route Refresh output count */
489: u_int32_t dynamic_cap_in; /* Dynamic Capability input count. */
490: u_int32_t dynamic_cap_out; /* Dynamic Capability output count. */
491:
492: /* BGP state count */
493: u_int32_t established; /* Established */
494: u_int32_t dropped; /* Dropped */
495:
496: /* Syncronization list and time. */
497: struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX];
498: time_t synctime;
499:
500: /* Send prefix count. */
501: unsigned long scount[AFI_MAX][SAFI_MAX];
502:
503: /* Announcement attribute hash. */
504: struct hash *hash[AFI_MAX][SAFI_MAX];
505:
506: /* Notify data. */
507: struct bgp_notify notify;
508:
509: /* Whole packet size to be read. */
510: unsigned long packet_size;
511:
512: /* Filter structure. */
513: struct bgp_filter filter[AFI_MAX][SAFI_MAX];
514:
515: /* ORF Prefix-list */
516: struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX];
517:
518: /* Prefix count. */
519: unsigned long pcount[AFI_MAX][SAFI_MAX];
520:
521: /* Max prefix count. */
522: unsigned long pmax[AFI_MAX][SAFI_MAX];
523: u_char pmax_threshold[AFI_MAX][SAFI_MAX];
524: u_int16_t pmax_restart[AFI_MAX][SAFI_MAX];
525: #define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75
526:
527: /* allowas-in. */
528: char allowas_in[AFI_MAX][SAFI_MAX];
529:
530: /* peer reset cause */
531: char last_reset;
532: #define PEER_DOWN_RID_CHANGE 1 /* bgp router-id command */
533: #define PEER_DOWN_REMOTE_AS_CHANGE 2 /* neighbor remote-as command */
534: #define PEER_DOWN_LOCAL_AS_CHANGE 3 /* neighbor local-as command */
535: #define PEER_DOWN_CLID_CHANGE 4 /* bgp cluster-id command */
536: #define PEER_DOWN_CONFED_ID_CHANGE 5 /* bgp confederation identifier command */
537: #define PEER_DOWN_CONFED_PEER_CHANGE 6 /* bgp confederation peer command */
538: #define PEER_DOWN_RR_CLIENT_CHANGE 7 /* neighbor route-reflector-client command */
539: #define PEER_DOWN_RS_CLIENT_CHANGE 8 /* neighbor route-server-client command */
540: #define PEER_DOWN_UPDATE_SOURCE_CHANGE 9 /* neighbor update-source command */
541: #define PEER_DOWN_AF_ACTIVATE 10 /* neighbor activate command */
542: #define PEER_DOWN_USER_SHUTDOWN 11 /* neighbor shutdown command */
543: #define PEER_DOWN_USER_RESET 12 /* clear ip bgp command */
544: #define PEER_DOWN_NOTIFY_RECEIVED 13 /* notification received */
545: #define PEER_DOWN_NOTIFY_SEND 14 /* notification send */
546: #define PEER_DOWN_CLOSE_SESSION 15 /* tcp session close */
547: #define PEER_DOWN_NEIGHBOR_DELETE 16 /* neghbor delete */
548: #define PEER_DOWN_RMAP_BIND 17 /* neghbor peer-group command */
549: #define PEER_DOWN_RMAP_UNBIND 18 /* no neighbor peer-group command */
550: #define PEER_DOWN_CAPABILITY_CHANGE 19 /* neighbor capability command */
551: #define PEER_DOWN_PASSIVE_CHANGE 20 /* neighbor passive command */
552: #define PEER_DOWN_MULTIHOP_CHANGE 21 /* neighbor multihop command */
553: #define PEER_DOWN_NSF_CLOSE_SESSION 22 /* NSF tcp session close */
554:
555: /* The kind of route-map Flags.*/
556: u_char rmap_type;
557: #define PEER_RMAP_TYPE_IN (1 << 0) /* neighbor route-map in */
558: #define PEER_RMAP_TYPE_OUT (1 << 1) /* neighbor route-map out */
559: #define PEER_RMAP_TYPE_NETWORK (1 << 2) /* network route-map */
560: #define PEER_RMAP_TYPE_REDISTRIBUTE (1 << 3) /* redistribute route-map */
561: #define PEER_RMAP_TYPE_DEFAULT (1 << 4) /* default-originate route-map */
562: #define PEER_RMAP_TYPE_NOSET (1 << 5) /* not allow to set commands */
563: #define PEER_RMAP_TYPE_IMPORT (1 << 6) /* neighbor route-map import */
564: #define PEER_RMAP_TYPE_EXPORT (1 << 7) /* neighbor route-map export */
565: };
566:
567: #define PEER_PASSWORD_MINLEN (1)
568: #define PEER_PASSWORD_MAXLEN (80)
569:
570: /* This structure's member directly points incoming packet data
571: stream. */
572: struct bgp_nlri
573: {
574: /* AFI. */
575: afi_t afi;
576:
577: /* SAFI. */
578: safi_t safi;
579:
580: /* Pointer to NLRI byte stream. */
581: u_char *nlri;
582:
583: /* Length of whole NLRI. */
584: bgp_size_t length;
585: };
586:
587: /* BGP versions. */
588: #define BGP_VERSION_4 4
589:
590: /* Default BGP port number. */
591: #define BGP_PORT_DEFAULT 179
592:
593: /* BGP message header and packet size. */
594: #define BGP_MARKER_SIZE 16
595: #define BGP_HEADER_SIZE 19
596: #define BGP_MAX_PACKET_SIZE 4096
597:
598: /* BGP minimum message size. */
599: #define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10)
600: #define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4)
601: #define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2)
602: #define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0)
603: #define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4)
604: #define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3)
605:
606: /* BGP message types. */
607: #define BGP_MSG_OPEN 1
608: #define BGP_MSG_UPDATE 2
609: #define BGP_MSG_NOTIFY 3
610: #define BGP_MSG_KEEPALIVE 4
611: #define BGP_MSG_ROUTE_REFRESH_NEW 5
612: #define BGP_MSG_CAPABILITY 6
613: #define BGP_MSG_ROUTE_REFRESH_OLD 128
614:
615: /* BGP open optional parameter. */
616: #define BGP_OPEN_OPT_AUTH 1
617: #define BGP_OPEN_OPT_CAP 2
618:
619: /* BGP4 attribute type codes. */
620: #define BGP_ATTR_ORIGIN 1
621: #define BGP_ATTR_AS_PATH 2
622: #define BGP_ATTR_NEXT_HOP 3
623: #define BGP_ATTR_MULTI_EXIT_DISC 4
624: #define BGP_ATTR_LOCAL_PREF 5
625: #define BGP_ATTR_ATOMIC_AGGREGATE 6
626: #define BGP_ATTR_AGGREGATOR 7
627: #define BGP_ATTR_COMMUNITIES 8
628: #define BGP_ATTR_ORIGINATOR_ID 9
629: #define BGP_ATTR_CLUSTER_LIST 10
630: #define BGP_ATTR_DPA 11
631: #define BGP_ATTR_ADVERTISER 12
632: #define BGP_ATTR_RCID_PATH 13
633: #define BGP_ATTR_MP_REACH_NLRI 14
634: #define BGP_ATTR_MP_UNREACH_NLRI 15
635: #define BGP_ATTR_EXT_COMMUNITIES 16
636: #define BGP_ATTR_AS4_PATH 17
637: #define BGP_ATTR_AS4_AGGREGATOR 18
638: #define BGP_ATTR_AS_PATHLIMIT 21
639:
640: /* BGP update origin. */
641: #define BGP_ORIGIN_IGP 0
642: #define BGP_ORIGIN_EGP 1
643: #define BGP_ORIGIN_INCOMPLETE 2
644:
645: /* BGP notify message codes. */
646: #define BGP_NOTIFY_HEADER_ERR 1
647: #define BGP_NOTIFY_OPEN_ERR 2
648: #define BGP_NOTIFY_UPDATE_ERR 3
649: #define BGP_NOTIFY_HOLD_ERR 4
650: #define BGP_NOTIFY_FSM_ERR 5
651: #define BGP_NOTIFY_CEASE 6
652: #define BGP_NOTIFY_CAPABILITY_ERR 7
653: #define BGP_NOTIFY_MAX 8
654:
655: #define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0
656:
657: /* BGP_NOTIFY_HEADER_ERR sub codes. */
658: #define BGP_NOTIFY_HEADER_NOT_SYNC 1
659: #define BGP_NOTIFY_HEADER_BAD_MESLEN 2
660: #define BGP_NOTIFY_HEADER_BAD_MESTYPE 3
661: #define BGP_NOTIFY_HEADER_MAX 4
662:
663: /* BGP_NOTIFY_OPEN_ERR sub codes. */
664: #define BGP_NOTIFY_OPEN_UNSUP_VERSION 1
665: #define BGP_NOTIFY_OPEN_BAD_PEER_AS 2
666: #define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3
667: #define BGP_NOTIFY_OPEN_UNSUP_PARAM 4
668: #define BGP_NOTIFY_OPEN_AUTH_FAILURE 5
669: #define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6
670: #define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7
671: #define BGP_NOTIFY_OPEN_MAX 8
672:
673: /* BGP_NOTIFY_UPDATE_ERR sub codes. */
674: #define BGP_NOTIFY_UPDATE_MAL_ATTR 1
675: #define BGP_NOTIFY_UPDATE_UNREC_ATTR 2
676: #define BGP_NOTIFY_UPDATE_MISS_ATTR 3
677: #define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4
678: #define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5
679: #define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6
680: #define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7
681: #define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8
682: #define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9
683: #define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10
684: #define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11
685: #define BGP_NOTIFY_UPDATE_MAX 12
686:
687: /* BGP_NOTIFY_CEASE sub codes (RFC 4486). */
688: #define BGP_NOTIFY_CEASE_MAX_PREFIX 1
689: #define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2
690: #define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3
691: #define BGP_NOTIFY_CEASE_ADMIN_RESET 4
692: #define BGP_NOTIFY_CEASE_CONNECT_REJECT 5
693: #define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6
694: #define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7
695: #define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8
696: #define BGP_NOTIFY_CEASE_MAX 9
697:
698: /* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */
699: #define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1
700: #define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2
701: #define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3
702: #define BGP_NOTIFY_CAPABILITY_MAX 4
703:
704: /* BGP finite state machine status. */
705: #define Idle 1
706: #define Connect 2
707: #define Active 3
708: #define OpenSent 4
709: #define OpenConfirm 5
710: #define Established 6
711: #define Clearing 7
712: #define Deleted 8
713: #define BGP_STATUS_MAX 9
714:
715: /* BGP finite state machine events. */
716: #define BGP_Start 1
717: #define BGP_Stop 2
718: #define TCP_connection_open 3
719: #define TCP_connection_closed 4
720: #define TCP_connection_open_failed 5
721: #define TCP_fatal_error 6
722: #define ConnectRetry_timer_expired 7
723: #define Hold_Timer_expired 8
724: #define KeepAlive_timer_expired 9
725: #define Receive_OPEN_message 10
726: #define Receive_KEEPALIVE_message 11
727: #define Receive_UPDATE_message 12
728: #define Receive_NOTIFICATION_message 13
729: #define Clearing_Completed 14
730: #define BGP_EVENTS_MAX 15
731:
732: /* BGP timers default value. */
733: #define BGP_INIT_START_TIMER 5
734: #define BGP_ERROR_START_TIMER 30
735: #define BGP_DEFAULT_HOLDTIME 180
736: #define BGP_DEFAULT_KEEPALIVE 60
737: #define BGP_DEFAULT_ASORIGINATE 15
738: #define BGP_DEFAULT_EBGP_ROUTEADV 30
739: #define BGP_DEFAULT_IBGP_ROUTEADV 5
740: #define BGP_CLEAR_CONNECT_RETRY 20
741: #define BGP_DEFAULT_CONNECT_RETRY 120
742:
743: /* BGP default local preference. */
744: #define BGP_DEFAULT_LOCAL_PREF 100
745:
746: /* BGP graceful restart */
747: #define BGP_DEFAULT_RESTART_TIME 120
748: #define BGP_DEFAULT_STALEPATH_TIME 360
749:
1.1.1.2 misho 750: /* RFC4364 */
751: #define SAFI_MPLS_LABELED_VPN 128
1.1 misho 752:
753: /* Max TTL value. */
754: #define TTL_MAX 255
755:
756: /* BGP uptime string length. */
757: #define BGP_UPTIME_LEN 25
758:
759: /* Default configuration settings for bgpd. */
760: #define BGP_VTY_PORT 2605
761: #define BGP_DEFAULT_CONFIG "bgpd.conf"
762:
763: /* Check AS path loop when we send NLRI. */
764: /* #define BGP_SEND_ASPATH_CHECK */
765:
766: /* Flag for peer_clear_soft(). */
767: enum bgp_clear_type
768: {
769: BGP_CLEAR_SOFT_NONE,
770: BGP_CLEAR_SOFT_OUT,
771: BGP_CLEAR_SOFT_IN,
772: BGP_CLEAR_SOFT_BOTH,
773: BGP_CLEAR_SOFT_IN_ORF_PREFIX,
774: BGP_CLEAR_SOFT_RSCLIENT
775: };
776:
777: /* Macros. */
778: #define BGP_INPUT(P) ((P)->ibuf)
779: #define BGP_INPUT_PNT(P) (STREAM_PNT(BGP_INPUT(P)))
780:
781: /* Count prefix size from mask length */
782: #define PSIZE(a) (((a) + 7) / (8))
783:
784: /* BGP error codes. */
785: #define BGP_SUCCESS 0
786: #define BGP_ERR_INVALID_VALUE -1
787: #define BGP_ERR_INVALID_FLAG -2
788: #define BGP_ERR_INVALID_AS -3
789: #define BGP_ERR_INVALID_BGP -4
790: #define BGP_ERR_PEER_GROUP_MEMBER -5
791: #define BGP_ERR_MULTIPLE_INSTANCE_USED -6
792: #define BGP_ERR_PEER_GROUP_MEMBER_EXISTS -7
793: #define BGP_ERR_PEER_BELONGS_TO_GROUP -8
794: #define BGP_ERR_PEER_GROUP_AF_UNCONFIGURED -9
795: #define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -10
796: #define BGP_ERR_PEER_GROUP_CANT_CHANGE -11
797: #define BGP_ERR_PEER_GROUP_MISMATCH -12
798: #define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -13
799: #define BGP_ERR_MULTIPLE_INSTANCE_NOT_SET -14
800: #define BGP_ERR_AS_MISMATCH -15
801: #define BGP_ERR_PEER_INACTIVE -16
802: #define BGP_ERR_INVALID_FOR_PEER_GROUP_MEMBER -17
803: #define BGP_ERR_PEER_GROUP_HAS_THE_FLAG -18
804: #define BGP_ERR_PEER_FLAG_CONFLICT -19
805: #define BGP_ERR_PEER_GROUP_SHUTDOWN -20
806: #define BGP_ERR_PEER_FILTER_CONFLICT -21
807: #define BGP_ERR_NOT_INTERNAL_PEER -22
808: #define BGP_ERR_REMOVE_PRIVATE_AS -23
809: #define BGP_ERR_AF_UNCONFIGURED -24
810: #define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -25
811: #define BGP_ERR_INSTANCE_MISMATCH -26
812: #define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -27
813: #define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -28
814: #define BGP_ERR_TCPSIG_FAILED -29
815: #define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -30
816: #define BGP_ERR_NO_IBGP_WITH_TTLHACK -31
817: #define BGP_ERR_MAX -32
1.1.1.3 ! misho 818: #define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS -33
1.1 misho 819:
820: extern struct bgp_master *bm;
821:
822: extern struct thread_master *master;
823:
824: /* Prototypes. */
825: extern void bgp_terminate (void);
826: extern void bgp_reset (void);
827: extern time_t bgp_clock (void);
828: extern void bgp_zclient_reset (void);
829: extern int bgp_nexthop_set (union sockunion *, union sockunion *,
830: struct bgp_nexthop *, struct peer *);
831: extern struct bgp *bgp_get_default (void);
832: extern struct bgp *bgp_lookup (as_t, const char *);
833: extern struct bgp *bgp_lookup_by_name (const char *);
834: extern struct peer *peer_lookup (struct bgp *, union sockunion *);
835: extern struct peer_group *peer_group_lookup (struct bgp *, const char *);
836: extern struct peer_group *peer_group_get (struct bgp *, const char *);
837: extern struct peer *peer_lookup_with_open (union sockunion *, as_t, struct in_addr *,
838: int *);
839: extern struct peer *peer_lock (struct peer *);
840: extern struct peer *peer_unlock (struct peer *);
1.1.1.3 ! misho 841: extern bgp_peer_sort_t peer_sort (struct peer *peer);
1.1 misho 842: extern int peer_active (struct peer *);
843: extern int peer_active_nego (struct peer *);
844: extern struct peer *peer_create_accept (struct bgp *);
845: extern char *peer_uptime (time_t, char *, size_t);
846: extern int bgp_config_write (struct vty *);
847: extern void bgp_config_write_family_header (struct vty *, afi_t, safi_t, int *);
848:
849: extern void bgp_master_init (void);
850:
851: extern void bgp_init (void);
852: extern void bgp_route_map_init (void);
853:
854: extern int bgp_option_set (int);
855: extern int bgp_option_unset (int);
856: extern int bgp_option_check (int);
857:
858: extern int bgp_get (struct bgp **, as_t *, const char *);
859: extern int bgp_delete (struct bgp *);
860:
861: extern int bgp_flag_set (struct bgp *, int);
862: extern int bgp_flag_unset (struct bgp *, int);
863: extern int bgp_flag_check (struct bgp *, int);
864:
865: extern void bgp_lock (struct bgp *);
866: extern void bgp_unlock (struct bgp *);
867:
868: extern int bgp_router_id_set (struct bgp *, struct in_addr *);
869:
870: extern int bgp_cluster_id_set (struct bgp *, struct in_addr *);
871: extern int bgp_cluster_id_unset (struct bgp *);
872:
873: extern int bgp_confederation_id_set (struct bgp *, as_t);
874: extern int bgp_confederation_id_unset (struct bgp *);
875: extern int bgp_confederation_peers_check (struct bgp *, as_t);
876:
877: extern int bgp_confederation_peers_add (struct bgp *, as_t);
878: extern int bgp_confederation_peers_remove (struct bgp *, as_t);
879:
880: extern int bgp_timers_set (struct bgp *, u_int32_t, u_int32_t);
881: extern int bgp_timers_unset (struct bgp *);
882:
883: extern int bgp_default_local_preference_set (struct bgp *, u_int32_t);
884: extern int bgp_default_local_preference_unset (struct bgp *);
885:
886: extern int peer_rsclient_active (struct peer *);
887:
888: extern int peer_remote_as (struct bgp *, union sockunion *, as_t *, afi_t, safi_t);
889: extern int peer_group_remote_as (struct bgp *, const char *, as_t *);
890: extern int peer_delete (struct peer *peer);
891: extern int peer_group_delete (struct peer_group *);
892: extern int peer_group_remote_as_delete (struct peer_group *);
893:
894: extern int peer_activate (struct peer *, afi_t, safi_t);
895: extern int peer_deactivate (struct peer *, afi_t, safi_t);
896:
897: extern int peer_group_bind (struct bgp *, union sockunion *, struct peer_group *,
898: afi_t, safi_t, as_t *);
899: extern int peer_group_unbind (struct bgp *, struct peer *, struct peer_group *,
900: afi_t, safi_t);
901:
902: extern int peer_flag_set (struct peer *, u_int32_t);
903: extern int peer_flag_unset (struct peer *, u_int32_t);
904:
905: extern int peer_af_flag_set (struct peer *, afi_t, safi_t, u_int32_t);
906: extern int peer_af_flag_unset (struct peer *, afi_t, safi_t, u_int32_t);
907: extern int peer_af_flag_check (struct peer *, afi_t, safi_t, u_int32_t);
908:
909: extern int peer_ebgp_multihop_set (struct peer *, int);
910: extern int peer_ebgp_multihop_unset (struct peer *);
911:
912: extern int peer_description_set (struct peer *, char *);
913: extern int peer_description_unset (struct peer *);
914:
915: extern int peer_update_source_if_set (struct peer *, const char *);
916: extern int peer_update_source_addr_set (struct peer *, union sockunion *);
917: extern int peer_update_source_unset (struct peer *);
918:
919: extern int peer_default_originate_set (struct peer *, afi_t, safi_t, const char *);
920: extern int peer_default_originate_unset (struct peer *, afi_t, safi_t);
921:
922: extern int peer_port_set (struct peer *, u_int16_t);
923: extern int peer_port_unset (struct peer *);
924:
925: extern int peer_weight_set (struct peer *, u_int16_t);
926: extern int peer_weight_unset (struct peer *);
927:
928: extern int peer_timers_set (struct peer *, u_int32_t, u_int32_t);
929: extern int peer_timers_unset (struct peer *);
930:
931: extern int peer_timers_connect_set (struct peer *, u_int32_t);
932: extern int peer_timers_connect_unset (struct peer *);
933:
934: extern int peer_advertise_interval_set (struct peer *, u_int32_t);
935: extern int peer_advertise_interval_unset (struct peer *);
936:
937: extern int peer_interface_set (struct peer *, const char *);
938: extern int peer_interface_unset (struct peer *);
939:
940: extern int peer_distribute_set (struct peer *, afi_t, safi_t, int, const char *);
941: extern int peer_distribute_unset (struct peer *, afi_t, safi_t, int);
942:
943: extern int peer_allowas_in_set (struct peer *, afi_t, safi_t, int);
944: extern int peer_allowas_in_unset (struct peer *, afi_t, safi_t);
945:
1.1.1.3 ! misho 946: extern int peer_local_as_set (struct peer *, as_t, int, int);
1.1 misho 947: extern int peer_local_as_unset (struct peer *);
948:
949: extern int peer_prefix_list_set (struct peer *, afi_t, safi_t, int, const char *);
950: extern int peer_prefix_list_unset (struct peer *, afi_t, safi_t, int);
951:
952: extern int peer_aslist_set (struct peer *, afi_t, safi_t, int, const char *);
953: extern int peer_aslist_unset (struct peer *,afi_t, safi_t, int);
954:
955: extern int peer_route_map_set (struct peer *, afi_t, safi_t, int, const char *);
956: extern int peer_route_map_unset (struct peer *, afi_t, safi_t, int);
957:
958: extern int peer_unsuppress_map_set (struct peer *, afi_t, safi_t, const char *);
959:
960: extern int peer_password_set (struct peer *, const char *);
961: extern int peer_password_unset (struct peer *);
962:
963: extern int peer_unsuppress_map_unset (struct peer *, afi_t, safi_t);
964:
965: extern int peer_maximum_prefix_set (struct peer *, afi_t, safi_t, u_int32_t, u_char, int, u_int16_t);
966: extern int peer_maximum_prefix_unset (struct peer *, afi_t, safi_t);
967:
968: extern int peer_clear (struct peer *);
969: extern int peer_clear_soft (struct peer *, afi_t, safi_t, enum bgp_clear_type);
970:
971: extern int peer_ttl_security_hops_set (struct peer *, int);
972: extern int peer_ttl_security_hops_unset (struct peer *);
973:
974: #endif /* _QUAGGA_BGPD_H */
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