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)
62: };
63:
64: /* BGP instance structure. */
65: struct bgp
66: {
67: /* AS number of this BGP instance. */
68: as_t as;
69:
70: /* Name of this BGP instance. */
71: char *name;
72:
73: /* Reference count to allow peer_delete to finish after bgp_delete */
74: int lock;
75:
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:
85: /* BGP route-server-clients. */
86: struct list *rsclient;
87:
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)
93:
94: /* BGP router identifier. */
95: struct in_addr router_id;
96: struct in_addr router_id_static;
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)
119: #define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1 << 11)
120: #define BGP_FLAG_GRACEFUL_RESTART (1 << 12)
121: #define BGP_FLAG_ASPATH_CONFED (1 << 13)
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;
161:
162: /* BGP graceful restart */
163: u_int32_t restart_time;
164: u_int32_t stalepath_time;
165: };
166:
167: /* BGP peer-group support. */
168: struct peer_group
169: {
170: /* Name of the peer-group. */
171: char *name;
172:
173: /* Pointer to BGP. */
174: struct bgp *bgp;
175:
176: /* Peer-group client list. */
177: struct list *peer;
178:
179: /* Peer-group config */
180: struct peer *conf;
181: };
182:
183: /* BGP Notify message format. */
184: struct bgp_notify
185: {
186: u_char code;
187: u_char subcode;
188: char *data;
189: bgp_size_t length;
190: };
191:
192: /* Next hop self address. */
193: struct bgp_nexthop
194: {
195: struct interface *ifp;
196: struct in_addr v4;
197: #ifdef HAVE_IPV6
198: struct in6_addr v6_global;
199: struct in6_addr v6_local;
200: #endif /* HAVE_IPV6 */
201: };
202:
203: /* BGP router distinguisher value. */
204: #define BGP_RD_SIZE 8
205:
206: struct bgp_rd
207: {
208: u_char val[BGP_RD_SIZE];
209: };
210:
211: #define RMAP_IN 0
212: #define RMAP_OUT 1
213: #define RMAP_IMPORT 2
214: #define RMAP_EXPORT 3
215: #define RMAP_MAX 4
216:
217: /* BGP filter structure. */
218: struct bgp_filter
219: {
220: /* Distribute-list. */
221: struct
222: {
223: char *name;
224: struct access_list *alist;
225: } dlist[FILTER_MAX];
226:
227: /* Prefix-list. */
228: struct
229: {
230: char *name;
231: struct prefix_list *plist;
232: } plist[FILTER_MAX];
233:
234: /* Filter-list. */
235: struct
236: {
237: char *name;
238: struct as_list *aslist;
239: } aslist[FILTER_MAX];
240:
241: /* Route-map. */
242: struct
243: {
244: char *name;
245: struct route_map *map;
246: } map[RMAP_MAX];
247:
248: /* Unsuppress-map. */
249: struct
250: {
251: char *name;
252: struct route_map *map;
253: } usmap;
254: };
255:
256: /* BGP neighbor structure. */
257: struct peer
258: {
259: /* BGP structure. */
260: struct bgp *bgp;
261:
262: /* reference count, primarily to allow bgp_process'ing of route_node's
263: * to be done after a struct peer is deleted.
264: *
265: * named 'lock' for hysterical reasons within Quagga.
266: */
267: int lock;
268:
269: /* BGP peer group. */
270: struct peer_group *group;
271: u_char af_group[AFI_MAX][SAFI_MAX];
272:
273: /* Peer's remote AS number. */
274: as_t as;
275:
276: /* Peer's local AS number. */
277: as_t local_as;
278:
279: /* Peer's Change local AS number. */
280: as_t change_local_as;
281:
282: /* Remote router ID. */
283: struct in_addr remote_id;
284:
285: /* Local router ID. */
286: struct in_addr local_id;
287:
288: /* Peer specific RIB when configured as route-server-client. */
289: struct bgp_table *rib[AFI_MAX][SAFI_MAX];
290:
291: /* Packet receive and send buffer. */
292: struct stream *ibuf;
293: struct stream_fifo *obuf;
294: struct stream *work;
295:
296: /* Status of the peer. */
297: int status;
298: int ostatus;
299:
300: /* Peer index, used for dumping TABLE_DUMP_V2 format */
301: uint16_t table_dump_index;
302:
303: /* Peer information */
304: int fd; /* File descriptor */
305: int ttl; /* TTL of TCP connection to the peer. */
306: int gtsm_hops; /* minimum hopcount to peer */
307: char *desc; /* Description of the peer. */
308: unsigned short port; /* Destination port for peer */
309: char *host; /* Printable address of the peer. */
310: union sockunion su; /* Sockunion address of the peer. */
311: time_t uptime; /* Last Up/Down time */
312: time_t readtime; /* Last read time */
313: time_t resettime; /* Last reset time */
314:
315: unsigned int ifindex; /* ifindex of the BGP connection. */
316: char *ifname; /* bind interface name. */
317: char *update_if;
318: union sockunion *update_source;
319: struct zlog *log;
320:
321: union sockunion *su_local; /* Sockunion of local address. */
322: union sockunion *su_remote; /* Sockunion of remote address. */
323: int shared_network; /* Is this peer shared same network. */
324: struct bgp_nexthop nexthop; /* Nexthop */
325:
326: /* Peer address family configuration. */
327: u_char afc[AFI_MAX][SAFI_MAX];
328: u_char afc_nego[AFI_MAX][SAFI_MAX];
329: u_char afc_adv[AFI_MAX][SAFI_MAX];
330: u_char afc_recv[AFI_MAX][SAFI_MAX];
331:
332: /* Capability flags (reset in bgp_stop) */
333: u_int16_t cap;
334: #define PEER_CAP_REFRESH_ADV (1 << 0) /* refresh advertised */
335: #define PEER_CAP_REFRESH_OLD_RCV (1 << 1) /* refresh old received */
336: #define PEER_CAP_REFRESH_NEW_RCV (1 << 2) /* refresh rfc received */
337: #define PEER_CAP_DYNAMIC_ADV (1 << 3) /* dynamic advertised */
338: #define PEER_CAP_DYNAMIC_RCV (1 << 4) /* dynamic received */
339: #define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */
340: #define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */
341: #define PEER_CAP_AS4_ADV (1 << 7) /* as4 advertised */
342: #define PEER_CAP_AS4_RCV (1 << 8) /* as4 received */
343:
344: /* Capability flags (reset in bgp_stop) */
345: u_int16_t af_cap[AFI_MAX][SAFI_MAX];
346: #define PEER_CAP_ORF_PREFIX_SM_ADV (1 << 0) /* send-mode advertised */
347: #define PEER_CAP_ORF_PREFIX_RM_ADV (1 << 1) /* receive-mode advertised */
348: #define PEER_CAP_ORF_PREFIX_SM_RCV (1 << 2) /* send-mode received */
349: #define PEER_CAP_ORF_PREFIX_RM_RCV (1 << 3) /* receive-mode received */
350: #define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1 << 4) /* send-mode received */
351: #define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1 << 5) /* receive-mode received */
352: #define PEER_CAP_RESTART_AF_RCV (1 << 6) /* graceful restart afi/safi received */
353: #define PEER_CAP_RESTART_AF_PRESERVE_RCV (1 << 7) /* graceful restart afi/safi F-bit received */
354:
355: /* Global configuration flags. */
356: u_int32_t flags;
357: #define PEER_FLAG_PASSIVE (1 << 0) /* passive mode */
358: #define PEER_FLAG_SHUTDOWN (1 << 1) /* shutdown */
359: #define PEER_FLAG_DONT_CAPABILITY (1 << 2) /* dont-capability */
360: #define PEER_FLAG_OVERRIDE_CAPABILITY (1 << 3) /* override-capability */
361: #define PEER_FLAG_STRICT_CAP_MATCH (1 << 4) /* strict-match */
362: #define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 5) /* dynamic capability */
363: #define PEER_FLAG_DISABLE_CONNECTED_CHECK (1 << 6) /* disable-connected-check */
364: #define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 7) /* local-as no-prepend */
365:
366: /* NSF mode (graceful restart) */
367: u_char nsf[AFI_MAX][SAFI_MAX];
368:
369: /* Per AF configuration flags. */
370: u_int32_t af_flags[AFI_MAX][SAFI_MAX];
371: #define PEER_FLAG_SEND_COMMUNITY (1 << 0) /* send-community */
372: #define PEER_FLAG_SEND_EXT_COMMUNITY (1 << 1) /* send-community ext. */
373: #define PEER_FLAG_NEXTHOP_SELF (1 << 2) /* next-hop-self */
374: #define PEER_FLAG_REFLECTOR_CLIENT (1 << 3) /* reflector-client */
375: #define PEER_FLAG_RSERVER_CLIENT (1 << 4) /* route-server-client */
376: #define PEER_FLAG_SOFT_RECONFIG (1 << 5) /* soft-reconfiguration */
377: #define PEER_FLAG_AS_PATH_UNCHANGED (1 << 6) /* transparent-as */
378: #define PEER_FLAG_NEXTHOP_UNCHANGED (1 << 7) /* transparent-next-hop */
379: #define PEER_FLAG_MED_UNCHANGED (1 << 8) /* transparent-next-hop */
380: #define PEER_FLAG_DEFAULT_ORIGINATE (1 << 9) /* default-originate */
381: #define PEER_FLAG_REMOVE_PRIVATE_AS (1 << 10) /* remove-private-as */
382: #define PEER_FLAG_ALLOWAS_IN (1 << 11) /* set allowas-in */
383: #define PEER_FLAG_ORF_PREFIX_SM (1 << 12) /* orf capability send-mode */
384: #define PEER_FLAG_ORF_PREFIX_RM (1 << 13) /* orf capability receive-mode */
385: #define PEER_FLAG_MAX_PREFIX (1 << 14) /* maximum prefix */
386: #define PEER_FLAG_MAX_PREFIX_WARNING (1 << 15) /* maximum prefix warning-only */
387: #define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1 << 16) /* leave link-local nexthop unchanged */
388:
389: /* MD5 password */
390: char *password;
391:
392: /* default-originate route-map. */
393: struct
394: {
395: char *name;
396: struct route_map *map;
397: } default_rmap[AFI_MAX][SAFI_MAX];
398:
399: /* Peer status flags. */
400: u_int16_t sflags;
401: #define PEER_STATUS_ACCEPT_PEER (1 << 0) /* accept peer */
402: #define PEER_STATUS_PREFIX_OVERFLOW (1 << 1) /* prefix-overflow */
403: #define PEER_STATUS_CAPABILITY_OPEN (1 << 2) /* capability open send */
404: #define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */
405: #define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */
406: #define PEER_STATUS_NSF_MODE (1 << 5) /* NSF aware peer */
407: #define PEER_STATUS_NSF_WAIT (1 << 6) /* wait comeback peer */
408:
409: /* Peer status af flags (reset in bgp_stop) */
410: u_int16_t af_sflags[AFI_MAX][SAFI_MAX];
411: #define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */
412: #define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */
413: #define PEER_STATUS_DEFAULT_ORIGINATE (1 << 2) /* default-originate peer */
414: #define PEER_STATUS_PREFIX_THRESHOLD (1 << 3) /* exceed prefix-threshold */
415: #define PEER_STATUS_PREFIX_LIMIT (1 << 4) /* exceed prefix-limit */
416: #define PEER_STATUS_EOR_SEND (1 << 5) /* end-of-rib send to peer */
417: #define PEER_STATUS_EOR_RECEIVED (1 << 6) /* end-of-rib received from peer */
418:
419: /* Default attribute value for the peer. */
420: u_int32_t config;
421: #define PEER_CONFIG_WEIGHT (1 << 0) /* Default weight. */
422: #define PEER_CONFIG_TIMER (1 << 1) /* keepalive & holdtime */
423: #define PEER_CONFIG_CONNECT (1 << 2) /* connect */
424: #define PEER_CONFIG_ROUTEADV (1 << 3) /* route advertise */
425: u_int32_t weight;
426: u_int32_t holdtime;
427: u_int32_t keepalive;
428: u_int32_t connect;
429: u_int32_t routeadv;
430:
431: /* Timer values. */
432: u_int32_t v_start;
433: u_int32_t v_connect;
434: u_int32_t v_holdtime;
435: u_int32_t v_keepalive;
436: u_int32_t v_asorig;
437: u_int32_t v_routeadv;
438: u_int32_t v_pmax_restart;
439: u_int32_t v_gr_restart;
440:
441: /* Threads. */
442: struct thread *t_read;
443: struct thread *t_write;
444: struct thread *t_start;
445: struct thread *t_connect;
446: struct thread *t_holdtime;
447: struct thread *t_keepalive;
448: struct thread *t_asorig;
449: struct thread *t_routeadv;
450: struct thread *t_pmax_restart;
451: struct thread *t_gr_restart;
452: struct thread *t_gr_stale;
453:
454: /* workqueues */
455: struct work_queue *clear_node_queue;
456:
457: /* Statistics field */
458: u_int32_t open_in; /* Open message input count */
459: u_int32_t open_out; /* Open message output count */
460: u_int32_t update_in; /* Update message input count */
461: u_int32_t update_out; /* Update message ouput count */
462: time_t update_time; /* Update message received time. */
463: u_int32_t keepalive_in; /* Keepalive input count */
464: u_int32_t keepalive_out; /* Keepalive output count */
465: u_int32_t notify_in; /* Notify input count */
466: u_int32_t notify_out; /* Notify output count */
467: u_int32_t refresh_in; /* Route Refresh input count */
468: u_int32_t refresh_out; /* Route Refresh output count */
469: u_int32_t dynamic_cap_in; /* Dynamic Capability input count. */
470: u_int32_t dynamic_cap_out; /* Dynamic Capability output count. */
471:
472: /* BGP state count */
473: u_int32_t established; /* Established */
474: u_int32_t dropped; /* Dropped */
475:
476: /* Syncronization list and time. */
477: struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX];
478: time_t synctime;
479:
480: /* Send prefix count. */
481: unsigned long scount[AFI_MAX][SAFI_MAX];
482:
483: /* Announcement attribute hash. */
484: struct hash *hash[AFI_MAX][SAFI_MAX];
485:
486: /* Notify data. */
487: struct bgp_notify notify;
488:
489: /* Whole packet size to be read. */
490: unsigned long packet_size;
491:
492: /* Filter structure. */
493: struct bgp_filter filter[AFI_MAX][SAFI_MAX];
494:
495: /* ORF Prefix-list */
496: struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX];
497:
498: /* Prefix count. */
499: unsigned long pcount[AFI_MAX][SAFI_MAX];
500:
501: /* Max prefix count. */
502: unsigned long pmax[AFI_MAX][SAFI_MAX];
503: u_char pmax_threshold[AFI_MAX][SAFI_MAX];
504: u_int16_t pmax_restart[AFI_MAX][SAFI_MAX];
505: #define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75
506:
507: /* allowas-in. */
508: char allowas_in[AFI_MAX][SAFI_MAX];
509:
510: /* peer reset cause */
511: char last_reset;
512: #define PEER_DOWN_RID_CHANGE 1 /* bgp router-id command */
513: #define PEER_DOWN_REMOTE_AS_CHANGE 2 /* neighbor remote-as command */
514: #define PEER_DOWN_LOCAL_AS_CHANGE 3 /* neighbor local-as command */
515: #define PEER_DOWN_CLID_CHANGE 4 /* bgp cluster-id command */
516: #define PEER_DOWN_CONFED_ID_CHANGE 5 /* bgp confederation identifier command */
517: #define PEER_DOWN_CONFED_PEER_CHANGE 6 /* bgp confederation peer command */
518: #define PEER_DOWN_RR_CLIENT_CHANGE 7 /* neighbor route-reflector-client command */
519: #define PEER_DOWN_RS_CLIENT_CHANGE 8 /* neighbor route-server-client command */
520: #define PEER_DOWN_UPDATE_SOURCE_CHANGE 9 /* neighbor update-source command */
521: #define PEER_DOWN_AF_ACTIVATE 10 /* neighbor activate command */
522: #define PEER_DOWN_USER_SHUTDOWN 11 /* neighbor shutdown command */
523: #define PEER_DOWN_USER_RESET 12 /* clear ip bgp command */
524: #define PEER_DOWN_NOTIFY_RECEIVED 13 /* notification received */
525: #define PEER_DOWN_NOTIFY_SEND 14 /* notification send */
526: #define PEER_DOWN_CLOSE_SESSION 15 /* tcp session close */
527: #define PEER_DOWN_NEIGHBOR_DELETE 16 /* neghbor delete */
528: #define PEER_DOWN_RMAP_BIND 17 /* neghbor peer-group command */
529: #define PEER_DOWN_RMAP_UNBIND 18 /* no neighbor peer-group command */
530: #define PEER_DOWN_CAPABILITY_CHANGE 19 /* neighbor capability command */
531: #define PEER_DOWN_PASSIVE_CHANGE 20 /* neighbor passive command */
532: #define PEER_DOWN_MULTIHOP_CHANGE 21 /* neighbor multihop command */
533: #define PEER_DOWN_NSF_CLOSE_SESSION 22 /* NSF tcp session close */
534:
535: /* The kind of route-map Flags.*/
536: u_char rmap_type;
537: #define PEER_RMAP_TYPE_IN (1 << 0) /* neighbor route-map in */
538: #define PEER_RMAP_TYPE_OUT (1 << 1) /* neighbor route-map out */
539: #define PEER_RMAP_TYPE_NETWORK (1 << 2) /* network route-map */
540: #define PEER_RMAP_TYPE_REDISTRIBUTE (1 << 3) /* redistribute route-map */
541: #define PEER_RMAP_TYPE_DEFAULT (1 << 4) /* default-originate route-map */
542: #define PEER_RMAP_TYPE_NOSET (1 << 5) /* not allow to set commands */
543: #define PEER_RMAP_TYPE_IMPORT (1 << 6) /* neighbor route-map import */
544: #define PEER_RMAP_TYPE_EXPORT (1 << 7) /* neighbor route-map export */
545: };
546:
547: #define PEER_PASSWORD_MINLEN (1)
548: #define PEER_PASSWORD_MAXLEN (80)
549:
550: /* This structure's member directly points incoming packet data
551: stream. */
552: struct bgp_nlri
553: {
554: /* AFI. */
555: afi_t afi;
556:
557: /* SAFI. */
558: safi_t safi;
559:
560: /* Pointer to NLRI byte stream. */
561: u_char *nlri;
562:
563: /* Length of whole NLRI. */
564: bgp_size_t length;
565: };
566:
567: /* BGP versions. */
568: #define BGP_VERSION_4 4
569:
570: /* Default BGP port number. */
571: #define BGP_PORT_DEFAULT 179
572:
573: /* BGP message header and packet size. */
574: #define BGP_MARKER_SIZE 16
575: #define BGP_HEADER_SIZE 19
576: #define BGP_MAX_PACKET_SIZE 4096
577:
578: /* BGP minimum message size. */
579: #define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10)
580: #define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4)
581: #define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2)
582: #define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0)
583: #define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4)
584: #define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3)
585:
586: /* BGP message types. */
587: #define BGP_MSG_OPEN 1
588: #define BGP_MSG_UPDATE 2
589: #define BGP_MSG_NOTIFY 3
590: #define BGP_MSG_KEEPALIVE 4
591: #define BGP_MSG_ROUTE_REFRESH_NEW 5
592: #define BGP_MSG_CAPABILITY 6
593: #define BGP_MSG_ROUTE_REFRESH_OLD 128
594:
595: /* BGP open optional parameter. */
596: #define BGP_OPEN_OPT_AUTH 1
597: #define BGP_OPEN_OPT_CAP 2
598:
599: /* BGP4 attribute type codes. */
600: #define BGP_ATTR_ORIGIN 1
601: #define BGP_ATTR_AS_PATH 2
602: #define BGP_ATTR_NEXT_HOP 3
603: #define BGP_ATTR_MULTI_EXIT_DISC 4
604: #define BGP_ATTR_LOCAL_PREF 5
605: #define BGP_ATTR_ATOMIC_AGGREGATE 6
606: #define BGP_ATTR_AGGREGATOR 7
607: #define BGP_ATTR_COMMUNITIES 8
608: #define BGP_ATTR_ORIGINATOR_ID 9
609: #define BGP_ATTR_CLUSTER_LIST 10
610: #define BGP_ATTR_DPA 11
611: #define BGP_ATTR_ADVERTISER 12
612: #define BGP_ATTR_RCID_PATH 13
613: #define BGP_ATTR_MP_REACH_NLRI 14
614: #define BGP_ATTR_MP_UNREACH_NLRI 15
615: #define BGP_ATTR_EXT_COMMUNITIES 16
616: #define BGP_ATTR_AS4_PATH 17
617: #define BGP_ATTR_AS4_AGGREGATOR 18
618: #define BGP_ATTR_AS_PATHLIMIT 21
619:
620: /* BGP update origin. */
621: #define BGP_ORIGIN_IGP 0
622: #define BGP_ORIGIN_EGP 1
623: #define BGP_ORIGIN_INCOMPLETE 2
624:
625: /* BGP notify message codes. */
626: #define BGP_NOTIFY_HEADER_ERR 1
627: #define BGP_NOTIFY_OPEN_ERR 2
628: #define BGP_NOTIFY_UPDATE_ERR 3
629: #define BGP_NOTIFY_HOLD_ERR 4
630: #define BGP_NOTIFY_FSM_ERR 5
631: #define BGP_NOTIFY_CEASE 6
632: #define BGP_NOTIFY_CAPABILITY_ERR 7
633: #define BGP_NOTIFY_MAX 8
634:
635: #define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0
636:
637: /* BGP_NOTIFY_HEADER_ERR sub codes. */
638: #define BGP_NOTIFY_HEADER_NOT_SYNC 1
639: #define BGP_NOTIFY_HEADER_BAD_MESLEN 2
640: #define BGP_NOTIFY_HEADER_BAD_MESTYPE 3
641: #define BGP_NOTIFY_HEADER_MAX 4
642:
643: /* BGP_NOTIFY_OPEN_ERR sub codes. */
644: #define BGP_NOTIFY_OPEN_UNSUP_VERSION 1
645: #define BGP_NOTIFY_OPEN_BAD_PEER_AS 2
646: #define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3
647: #define BGP_NOTIFY_OPEN_UNSUP_PARAM 4
648: #define BGP_NOTIFY_OPEN_AUTH_FAILURE 5
649: #define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6
650: #define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7
651: #define BGP_NOTIFY_OPEN_MAX 8
652:
653: /* BGP_NOTIFY_UPDATE_ERR sub codes. */
654: #define BGP_NOTIFY_UPDATE_MAL_ATTR 1
655: #define BGP_NOTIFY_UPDATE_UNREC_ATTR 2
656: #define BGP_NOTIFY_UPDATE_MISS_ATTR 3
657: #define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4
658: #define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5
659: #define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6
660: #define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7
661: #define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8
662: #define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9
663: #define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10
664: #define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11
665: #define BGP_NOTIFY_UPDATE_MAX 12
666:
667: /* BGP_NOTIFY_CEASE sub codes (RFC 4486). */
668: #define BGP_NOTIFY_CEASE_MAX_PREFIX 1
669: #define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2
670: #define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3
671: #define BGP_NOTIFY_CEASE_ADMIN_RESET 4
672: #define BGP_NOTIFY_CEASE_CONNECT_REJECT 5
673: #define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6
674: #define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7
675: #define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8
676: #define BGP_NOTIFY_CEASE_MAX 9
677:
678: /* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */
679: #define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1
680: #define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2
681: #define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3
682: #define BGP_NOTIFY_CAPABILITY_MAX 4
683:
684: /* BGP finite state machine status. */
685: #define Idle 1
686: #define Connect 2
687: #define Active 3
688: #define OpenSent 4
689: #define OpenConfirm 5
690: #define Established 6
691: #define Clearing 7
692: #define Deleted 8
693: #define BGP_STATUS_MAX 9
694:
695: /* BGP finite state machine events. */
696: #define BGP_Start 1
697: #define BGP_Stop 2
698: #define TCP_connection_open 3
699: #define TCP_connection_closed 4
700: #define TCP_connection_open_failed 5
701: #define TCP_fatal_error 6
702: #define ConnectRetry_timer_expired 7
703: #define Hold_Timer_expired 8
704: #define KeepAlive_timer_expired 9
705: #define Receive_OPEN_message 10
706: #define Receive_KEEPALIVE_message 11
707: #define Receive_UPDATE_message 12
708: #define Receive_NOTIFICATION_message 13
709: #define Clearing_Completed 14
710: #define BGP_EVENTS_MAX 15
711:
712: /* BGP timers default value. */
713: #define BGP_INIT_START_TIMER 5
714: #define BGP_ERROR_START_TIMER 30
715: #define BGP_DEFAULT_HOLDTIME 180
716: #define BGP_DEFAULT_KEEPALIVE 60
717: #define BGP_DEFAULT_ASORIGINATE 15
718: #define BGP_DEFAULT_EBGP_ROUTEADV 30
719: #define BGP_DEFAULT_IBGP_ROUTEADV 5
720: #define BGP_CLEAR_CONNECT_RETRY 20
721: #define BGP_DEFAULT_CONNECT_RETRY 120
722:
723: /* BGP default local preference. */
724: #define BGP_DEFAULT_LOCAL_PREF 100
725:
726: /* BGP graceful restart */
727: #define BGP_DEFAULT_RESTART_TIME 120
728: #define BGP_DEFAULT_STALEPATH_TIME 360
729:
730: /* SAFI which used in open capability negotiation. */
731: #define BGP_SAFI_VPNV4 128
732: #define BGP_SAFI_VPNV6 129
733:
734: /* Max TTL value. */
735: #define TTL_MAX 255
736:
737: /* BGP uptime string length. */
738: #define BGP_UPTIME_LEN 25
739:
740: /* Default configuration settings for bgpd. */
741: #define BGP_VTY_PORT 2605
742: #define BGP_DEFAULT_CONFIG "bgpd.conf"
743:
744: /* Check AS path loop when we send NLRI. */
745: /* #define BGP_SEND_ASPATH_CHECK */
746:
747: /* IBGP/EBGP identifier. We also have a CONFED peer, which is to say,
748: a peer who's AS is part of our Confederation. */
749: enum
750: {
751: BGP_PEER_IBGP,
752: BGP_PEER_EBGP,
753: BGP_PEER_INTERNAL,
754: BGP_PEER_CONFED
755: };
756:
757: /* Flag for peer_clear_soft(). */
758: enum bgp_clear_type
759: {
760: BGP_CLEAR_SOFT_NONE,
761: BGP_CLEAR_SOFT_OUT,
762: BGP_CLEAR_SOFT_IN,
763: BGP_CLEAR_SOFT_BOTH,
764: BGP_CLEAR_SOFT_IN_ORF_PREFIX,
765: BGP_CLEAR_SOFT_RSCLIENT
766: };
767:
768: /* Macros. */
769: #define BGP_INPUT(P) ((P)->ibuf)
770: #define BGP_INPUT_PNT(P) (STREAM_PNT(BGP_INPUT(P)))
771:
772: /* Count prefix size from mask length */
773: #define PSIZE(a) (((a) + 7) / (8))
774:
775: /* BGP error codes. */
776: #define BGP_SUCCESS 0
777: #define BGP_ERR_INVALID_VALUE -1
778: #define BGP_ERR_INVALID_FLAG -2
779: #define BGP_ERR_INVALID_AS -3
780: #define BGP_ERR_INVALID_BGP -4
781: #define BGP_ERR_PEER_GROUP_MEMBER -5
782: #define BGP_ERR_MULTIPLE_INSTANCE_USED -6
783: #define BGP_ERR_PEER_GROUP_MEMBER_EXISTS -7
784: #define BGP_ERR_PEER_BELONGS_TO_GROUP -8
785: #define BGP_ERR_PEER_GROUP_AF_UNCONFIGURED -9
786: #define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -10
787: #define BGP_ERR_PEER_GROUP_CANT_CHANGE -11
788: #define BGP_ERR_PEER_GROUP_MISMATCH -12
789: #define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -13
790: #define BGP_ERR_MULTIPLE_INSTANCE_NOT_SET -14
791: #define BGP_ERR_AS_MISMATCH -15
792: #define BGP_ERR_PEER_INACTIVE -16
793: #define BGP_ERR_INVALID_FOR_PEER_GROUP_MEMBER -17
794: #define BGP_ERR_PEER_GROUP_HAS_THE_FLAG -18
795: #define BGP_ERR_PEER_FLAG_CONFLICT -19
796: #define BGP_ERR_PEER_GROUP_SHUTDOWN -20
797: #define BGP_ERR_PEER_FILTER_CONFLICT -21
798: #define BGP_ERR_NOT_INTERNAL_PEER -22
799: #define BGP_ERR_REMOVE_PRIVATE_AS -23
800: #define BGP_ERR_AF_UNCONFIGURED -24
801: #define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -25
802: #define BGP_ERR_INSTANCE_MISMATCH -26
803: #define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -27
804: #define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -28
805: #define BGP_ERR_TCPSIG_FAILED -29
806: #define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -30
807: #define BGP_ERR_NO_IBGP_WITH_TTLHACK -31
808: #define BGP_ERR_MAX -32
809:
810: extern struct bgp_master *bm;
811:
812: extern struct thread_master *master;
813:
814: /* Prototypes. */
815: extern void bgp_terminate (void);
816: extern void bgp_reset (void);
817: extern time_t bgp_clock (void);
818: extern void bgp_zclient_reset (void);
819: extern int bgp_nexthop_set (union sockunion *, union sockunion *,
820: struct bgp_nexthop *, struct peer *);
821: extern struct bgp *bgp_get_default (void);
822: extern struct bgp *bgp_lookup (as_t, const char *);
823: extern struct bgp *bgp_lookup_by_name (const char *);
824: extern struct peer *peer_lookup (struct bgp *, union sockunion *);
825: extern struct peer_group *peer_group_lookup (struct bgp *, const char *);
826: extern struct peer_group *peer_group_get (struct bgp *, const char *);
827: extern struct peer *peer_lookup_with_open (union sockunion *, as_t, struct in_addr *,
828: int *);
829: extern struct peer *peer_lock (struct peer *);
830: extern struct peer *peer_unlock (struct peer *);
831: extern int peer_sort (struct peer *peer);
832: extern int peer_active (struct peer *);
833: extern int peer_active_nego (struct peer *);
834: extern struct peer *peer_create_accept (struct bgp *);
835: extern char *peer_uptime (time_t, char *, size_t);
836: extern int bgp_config_write (struct vty *);
837: extern void bgp_config_write_family_header (struct vty *, afi_t, safi_t, int *);
838:
839: extern void bgp_master_init (void);
840:
841: extern void bgp_init (void);
842: extern void bgp_route_map_init (void);
843:
844: extern int bgp_option_set (int);
845: extern int bgp_option_unset (int);
846: extern int bgp_option_check (int);
847:
848: extern int bgp_get (struct bgp **, as_t *, const char *);
849: extern int bgp_delete (struct bgp *);
850:
851: extern int bgp_flag_set (struct bgp *, int);
852: extern int bgp_flag_unset (struct bgp *, int);
853: extern int bgp_flag_check (struct bgp *, int);
854:
855: extern void bgp_lock (struct bgp *);
856: extern void bgp_unlock (struct bgp *);
857:
858: extern int bgp_router_id_set (struct bgp *, struct in_addr *);
859:
860: extern int bgp_cluster_id_set (struct bgp *, struct in_addr *);
861: extern int bgp_cluster_id_unset (struct bgp *);
862:
863: extern int bgp_confederation_id_set (struct bgp *, as_t);
864: extern int bgp_confederation_id_unset (struct bgp *);
865: extern int bgp_confederation_peers_check (struct bgp *, as_t);
866:
867: extern int bgp_confederation_peers_add (struct bgp *, as_t);
868: extern int bgp_confederation_peers_remove (struct bgp *, as_t);
869:
870: extern int bgp_timers_set (struct bgp *, u_int32_t, u_int32_t);
871: extern int bgp_timers_unset (struct bgp *);
872:
873: extern int bgp_default_local_preference_set (struct bgp *, u_int32_t);
874: extern int bgp_default_local_preference_unset (struct bgp *);
875:
876: extern int peer_rsclient_active (struct peer *);
877:
878: extern int peer_remote_as (struct bgp *, union sockunion *, as_t *, afi_t, safi_t);
879: extern int peer_group_remote_as (struct bgp *, const char *, as_t *);
880: extern int peer_delete (struct peer *peer);
881: extern int peer_group_delete (struct peer_group *);
882: extern int peer_group_remote_as_delete (struct peer_group *);
883:
884: extern int peer_activate (struct peer *, afi_t, safi_t);
885: extern int peer_deactivate (struct peer *, afi_t, safi_t);
886:
887: extern int peer_group_bind (struct bgp *, union sockunion *, struct peer_group *,
888: afi_t, safi_t, as_t *);
889: extern int peer_group_unbind (struct bgp *, struct peer *, struct peer_group *,
890: afi_t, safi_t);
891:
892: extern int peer_flag_set (struct peer *, u_int32_t);
893: extern int peer_flag_unset (struct peer *, u_int32_t);
894:
895: extern int peer_af_flag_set (struct peer *, afi_t, safi_t, u_int32_t);
896: extern int peer_af_flag_unset (struct peer *, afi_t, safi_t, u_int32_t);
897: extern int peer_af_flag_check (struct peer *, afi_t, safi_t, u_int32_t);
898:
899: extern int peer_ebgp_multihop_set (struct peer *, int);
900: extern int peer_ebgp_multihop_unset (struct peer *);
901:
902: extern int peer_description_set (struct peer *, char *);
903: extern int peer_description_unset (struct peer *);
904:
905: extern int peer_update_source_if_set (struct peer *, const char *);
906: extern int peer_update_source_addr_set (struct peer *, union sockunion *);
907: extern int peer_update_source_unset (struct peer *);
908:
909: extern int peer_default_originate_set (struct peer *, afi_t, safi_t, const char *);
910: extern int peer_default_originate_unset (struct peer *, afi_t, safi_t);
911:
912: extern int peer_port_set (struct peer *, u_int16_t);
913: extern int peer_port_unset (struct peer *);
914:
915: extern int peer_weight_set (struct peer *, u_int16_t);
916: extern int peer_weight_unset (struct peer *);
917:
918: extern int peer_timers_set (struct peer *, u_int32_t, u_int32_t);
919: extern int peer_timers_unset (struct peer *);
920:
921: extern int peer_timers_connect_set (struct peer *, u_int32_t);
922: extern int peer_timers_connect_unset (struct peer *);
923:
924: extern int peer_advertise_interval_set (struct peer *, u_int32_t);
925: extern int peer_advertise_interval_unset (struct peer *);
926:
927: extern int peer_interface_set (struct peer *, const char *);
928: extern int peer_interface_unset (struct peer *);
929:
930: extern int peer_distribute_set (struct peer *, afi_t, safi_t, int, const char *);
931: extern int peer_distribute_unset (struct peer *, afi_t, safi_t, int);
932:
933: extern int peer_allowas_in_set (struct peer *, afi_t, safi_t, int);
934: extern int peer_allowas_in_unset (struct peer *, afi_t, safi_t);
935:
936: extern int peer_local_as_set (struct peer *, as_t, int);
937: extern int peer_local_as_unset (struct peer *);
938:
939: extern int peer_prefix_list_set (struct peer *, afi_t, safi_t, int, const char *);
940: extern int peer_prefix_list_unset (struct peer *, afi_t, safi_t, int);
941:
942: extern int peer_aslist_set (struct peer *, afi_t, safi_t, int, const char *);
943: extern int peer_aslist_unset (struct peer *,afi_t, safi_t, int);
944:
945: extern int peer_route_map_set (struct peer *, afi_t, safi_t, int, const char *);
946: extern int peer_route_map_unset (struct peer *, afi_t, safi_t, int);
947:
948: extern int peer_unsuppress_map_set (struct peer *, afi_t, safi_t, const char *);
949:
950: extern int peer_password_set (struct peer *, const char *);
951: extern int peer_password_unset (struct peer *);
952:
953: extern int peer_unsuppress_map_unset (struct peer *, afi_t, safi_t);
954:
955: extern int peer_maximum_prefix_set (struct peer *, afi_t, safi_t, u_int32_t, u_char, int, u_int16_t);
956: extern int peer_maximum_prefix_unset (struct peer *, afi_t, safi_t);
957:
958: extern int peer_clear (struct peer *);
959: extern int peer_clear_soft (struct peer *, afi_t, safi_t, enum bgp_clear_type);
960:
961: extern int peer_ttl_security_hops_set (struct peer *, int);
962: extern int peer_ttl_security_hops_unset (struct peer *);
963:
964: #endif /* _QUAGGA_BGPD_H */
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