1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
|
/* $OpenBSD: bgpd.h,v 1.236 2009/06/06 06:04:10 claudio Exp $ */
/*
* Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef __BGPD_H__
#define __BGPD_H__
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/queue.h>
#include <net/route.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <net/pfkeyv2.h>
#include <poll.h>
#include <stdarg.h>
#define BGP_VERSION 4
#define BGP_PORT 179
#define CONFFILE "/etc/bgpd.conf"
#define BGPD_USER "_bgpd"
#define PEER_DESCR_LEN 32
#define PFTABLE_LEN 16
#define TCP_MD5_KEY_LEN 80
#define IPSEC_ENC_KEY_LEN 32
#define IPSEC_AUTH_KEY_LEN 20
#define ASNUM_MAX 0xffffffff
#define MAX_PKTSIZE 4096
#define MIN_HOLDTIME 3
#define READ_BUF_SIZE 65535
#define RT_BUF_SIZE 16384
#define MAX_RTSOCK_BUF 128 * 1024
#define BGPD_OPT_VERBOSE 0x0001
#define BGPD_OPT_VERBOSE2 0x0002
#define BGPD_OPT_NOACTION 0x0004
#define BGPD_OPT_FORCE_DEMOTE 0x0008
#define BGPD_FLAG_NO_FIB_UPDATE 0x0001
#define BGPD_FLAG_NO_EVALUATE 0x0002
#define BGPD_FLAG_REFLECTOR 0x0004
#define BGPD_FLAG_REDIST_STATIC 0x0008
#define BGPD_FLAG_REDIST_CONNECTED 0x0010
#define BGPD_FLAG_REDIST6_STATIC 0x0020
#define BGPD_FLAG_REDIST6_CONNECTED 0x0040
#define BGPD_FLAG_NEXTHOP_BGP 0x0080
#define BGPD_FLAG_NEXTHOP_DEFAULT 0x1000
#define BGPD_FLAG_DECISION_MASK 0x0f00
#define BGPD_FLAG_DECISION_ROUTEAGE 0x0100
#define BGPD_FLAG_DECISION_TRANS_AS 0x0200
#define BGPD_FLAG_DECISION_MED_ALWAYS 0x0400
#define BGPD_LOG_UPDATES 0x0001
#define SOCKET_NAME "/var/run/bgpd.sock"
#define F_BGPD_INSERTED 0x0001
#define F_KERNEL 0x0002
#define F_CONNECTED 0x0004
#define F_NEXTHOP 0x0008
#define F_DOWN 0x0010
#define F_STATIC 0x0020
#define F_DYNAMIC 0x0040
#define F_REJECT 0x0080
#define F_BLACKHOLE 0x0100
#define F_LONGER 0x0200
#define F_CTL_DETAIL 0x1000 /* only used by bgpctl */
#define F_CTL_ADJ_IN 0x2000
#define F_CTL_ADJ_OUT 0x4000
/*
* Limit the number of control messages generated by the RDE and queued in
* session engine. The RDE limit defines how many imsg are generated in
* one poll round. Then if the SE limit is hit the RDE control socket will no
* longer be polled.
*/
#define RDE_RUNNER_ROUNDS 100
#define SESSION_CTL_QUEUE_MAX 10000
enum {
PROC_MAIN,
PROC_SE,
PROC_RDE
} bgpd_process;
enum reconf_action {
RECONF_NONE,
RECONF_KEEP,
RECONF_REINIT,
RECONF_DELETE
};
struct buf {
TAILQ_ENTRY(buf) entry;
u_char *buf;
size_t size;
size_t max;
size_t wpos;
size_t rpos;
int fd;
};
struct msgbuf {
TAILQ_HEAD(, buf) bufs;
u_int32_t queued;
int fd;
};
struct bgpd_addr {
sa_family_t af;
union {
struct in_addr v4;
struct in6_addr v6;
u_int8_t addr8[16];
u_int16_t addr16[8];
u_int32_t addr32[4];
} ba; /* 128-bit address */
u_int32_t scope_id; /* iface scope id for v6 */
#define v4 ba.v4
#define v6 ba.v6
#define addr8 ba.addr8
#define addr16 ba.addr16
#define addr32 ba.addr32
};
#define DEFAULT_LISTENER 0x01
#define LISTENER_LISTENING 0x02
struct listen_addr {
TAILQ_ENTRY(listen_addr) entry;
struct sockaddr_storage sa;
int fd;
enum reconf_action reconf;
u_int8_t flags;
};
TAILQ_HEAD(listen_addrs, listen_addr);
TAILQ_HEAD(filter_set_head, filter_set);
struct bgpd_config {
struct filter_set_head connectset;
struct filter_set_head connectset6;
struct filter_set_head staticset;
struct filter_set_head staticset6;
struct listen_addrs *listen_addrs;
char *csock;
char *rcsock;
int opts;
int flags;
int log;
u_int rtableid;
u_int32_t bgpid;
u_int32_t clusterid;
u_int32_t as;
u_int16_t short_as;
u_int16_t holdtime;
u_int16_t min_holdtime;
u_int16_t connectretry;
};
struct buf_read {
u_char buf[READ_BUF_SIZE];
u_char *rptr;
size_t wpos;
};
enum announce_type {
ANNOUNCE_UNDEF,
ANNOUNCE_SELF,
ANNOUNCE_NONE,
ANNOUNCE_DEFAULT_ROUTE,
ANNOUNCE_ALL
};
enum enforce_as {
ENFORCE_AS_UNDEF,
ENFORCE_AS_OFF,
ENFORCE_AS_ON
};
enum auth_method {
AUTH_NONE,
AUTH_MD5SIG,
AUTH_IPSEC_MANUAL_ESP,
AUTH_IPSEC_MANUAL_AH,
AUTH_IPSEC_IKE_ESP,
AUTH_IPSEC_IKE_AH
};
struct peer_auth {
char md5key[TCP_MD5_KEY_LEN];
char auth_key_in[IPSEC_AUTH_KEY_LEN];
char auth_key_out[IPSEC_AUTH_KEY_LEN];
char enc_key_in[IPSEC_ENC_KEY_LEN];
char enc_key_out[IPSEC_ENC_KEY_LEN];
u_int32_t spi_in;
u_int32_t spi_out;
enum auth_method method;
u_int8_t md5key_len;
u_int8_t auth_alg_in;
u_int8_t auth_alg_out;
u_int8_t auth_keylen_in;
u_int8_t auth_keylen_out;
u_int8_t enc_alg_in;
u_int8_t enc_alg_out;
u_int8_t enc_keylen_in;
u_int8_t enc_keylen_out;
};
struct capabilities {
u_int8_t mp_v4; /* multiprotocol extensions, RFC 4760 */
u_int8_t mp_v6;
u_int8_t refresh; /* route refresh, RFC 2918 */
u_int8_t restart; /* graceful restart, RFC 4724 */
u_int8_t as4byte; /* draft-ietf-idr-as4bytes-13 */
};
struct peer_config {
struct bgpd_addr remote_addr;
struct bgpd_addr local_addr;
struct peer_auth auth;
struct capabilities capabilities;
char group[PEER_DESCR_LEN];
char descr[PEER_DESCR_LEN];
char rib[PEER_DESCR_LEN];
char if_depend[IFNAMSIZ];
char demote_group[IFNAMSIZ];
u_int32_t id;
u_int32_t groupid;
u_int32_t remote_as;
u_int32_t local_as;
u_int32_t max_prefix;
enum announce_type announce_type;
enum enforce_as enforce_as;
enum reconf_action reconf_action;
u_int16_t max_prefix_restart;
u_int16_t holdtime;
u_int16_t min_holdtime;
u_int16_t local_short_as;
u_int8_t template;
u_int8_t remote_masklen;
u_int8_t cloned;
u_int8_t ebgp; /* 1 = ebgp, 0 = ibgp */
u_int8_t distance; /* 1 = direct, >1 = multihop */
u_int8_t passive;
u_int8_t down;
u_int8_t announce_capa;
u_int8_t reflector_client;
u_int8_t softreconfig_in;
u_int8_t softreconfig_out;
u_int8_t ttlsec; /* TTL security hack */
u_int8_t flags;
u_int8_t pad[3];
};
#define PEERFLAG_TRANS_AS 0x01
struct network_config {
struct bgpd_addr prefix;
struct filter_set_head attrset;
u_int8_t prefixlen;
};
TAILQ_HEAD(network_head, network);
struct network {
struct network_config net;
TAILQ_ENTRY(network) entry;
};
/* ipc messages */
#define IMSG_HEADER_SIZE sizeof(struct imsg_hdr)
#define MAX_IMSGSIZE 8192
struct imsg_fd {
TAILQ_ENTRY(imsg_fd) entry;
int fd;
};
struct imsgbuf {
TAILQ_HEAD(fds, imsg_fd) fds;
struct buf_read r;
struct msgbuf w;
int fd;
pid_t pid;
};
enum imsg_type {
IMSG_NONE,
IMSG_RECONF_CONF,
IMSG_RECONF_PEER,
IMSG_RECONF_FILTER,
IMSG_RECONF_LISTENER,
IMSG_RECONF_DONE,
IMSG_UPDATE,
IMSG_UPDATE_ERR,
IMSG_SESSION_ADD,
IMSG_SESSION_UP,
IMSG_SESSION_DOWN,
IMSG_MRT_OPEN,
IMSG_MRT_REOPEN,
IMSG_MRT_CLOSE,
IMSG_KROUTE_CHANGE,
IMSG_KROUTE_DELETE,
IMSG_KROUTE6_CHANGE,
IMSG_KROUTE6_DELETE,
IMSG_NEXTHOP_ADD,
IMSG_NEXTHOP_REMOVE,
IMSG_NEXTHOP_UPDATE,
IMSG_PFTABLE_ADD,
IMSG_PFTABLE_REMOVE,
IMSG_PFTABLE_COMMIT,
IMSG_NETWORK_ADD,
IMSG_NETWORK_REMOVE,
IMSG_NETWORK_FLUSH,
IMSG_NETWORK_DONE,
IMSG_FILTER_SET,
IMSG_CTL_END,
IMSG_CTL_RELOAD,
IMSG_CTL_FIB_COUPLE,
IMSG_CTL_FIB_DECOUPLE,
IMSG_CTL_NEIGHBOR_UP,
IMSG_CTL_NEIGHBOR_DOWN,
IMSG_CTL_NEIGHBOR_CLEAR,
IMSG_CTL_NEIGHBOR_RREFRESH,
IMSG_CTL_KROUTE,
IMSG_CTL_KROUTE6,
IMSG_CTL_KROUTE_ADDR,
IMSG_CTL_RESULT,
IMSG_CTL_SHOW_NEIGHBOR,
IMSG_CTL_SHOW_NEXTHOP,
IMSG_CTL_SHOW_INTERFACE,
IMSG_CTL_SHOW_RIB,
IMSG_CTL_SHOW_RIB_AS,
IMSG_CTL_SHOW_RIB_PREFIX,
IMSG_CTL_SHOW_RIB_ATTR,
IMSG_CTL_SHOW_RIB_COMMUNITY,
IMSG_CTL_SHOW_NETWORK,
IMSG_CTL_SHOW_NETWORK6,
IMSG_CTL_SHOW_RIB_MEM,
IMSG_CTL_SHOW_TERSE,
IMSG_CTL_SHOW_TIMER,
IMSG_REFRESH,
IMSG_IFINFO,
IMSG_DEMOTE
};
struct imsg_hdr {
u_int32_t peerid;
pid_t pid;
enum imsg_type type;
u_int16_t len;
};
struct imsg {
struct imsg_hdr hdr;
void *data;
};
struct demote_msg {
char demote_group[IFNAMSIZ];
int level;
};
enum ctl_results {
CTL_RES_OK,
CTL_RES_NOSUCHPEER,
CTL_RES_DENIED,
CTL_RES_NOCAP,
CTL_RES_PARSE_ERROR,
CTL_RES_NOMEM
};
/* needed for session.h parse prototype */
LIST_HEAD(mrt_head, mrt);
/* error codes and subcodes needed in SE and RDE */
enum err_codes {
ERR_HEADER = 1,
ERR_OPEN,
ERR_UPDATE,
ERR_HOLDTIMEREXPIRED,
ERR_FSM,
ERR_CEASE
};
enum suberr_update {
ERR_UPD_UNSPECIFIC,
ERR_UPD_ATTRLIST,
ERR_UPD_UNKNWN_WK_ATTR,
ERR_UPD_MISSNG_WK_ATTR,
ERR_UPD_ATTRFLAGS,
ERR_UPD_ATTRLEN,
ERR_UPD_ORIGIN,
ERR_UPD_LOOP,
ERR_UPD_NEXTHOP,
ERR_UPD_OPTATTR,
ERR_UPD_NETWORK,
ERR_UPD_ASPATH
};
enum suberr_cease {
ERR_CEASE_MAX_PREFIX = 1,
ERR_CEASE_ADMIN_DOWN,
ERR_CEASE_PEER_UNCONF,
ERR_CEASE_ADMIN_RESET,
ERR_CEASE_CONN_REJECT,
ERR_CEASE_OTHER_CHANGE,
ERR_CEASE_COLLISION,
ERR_CEASE_RSRC_EXHAUST
};
struct kroute {
struct in_addr prefix;
struct in_addr nexthop;
u_int16_t flags;
u_int16_t labelid;
u_short ifindex;
u_int8_t prefixlen;
u_int8_t priority;
};
struct kroute6 {
struct in6_addr prefix;
struct in6_addr nexthop;
u_int16_t flags;
u_int16_t labelid;
u_short ifindex;
u_int8_t prefixlen;
u_int8_t priority;
};
struct kroute_nexthop {
union {
struct kroute kr4;
struct kroute6 kr6;
} kr;
struct bgpd_addr nexthop;
struct bgpd_addr gateway;
u_int8_t valid;
u_int8_t connected;
};
struct kif {
char ifname[IFNAMSIZ];
u_int64_t baudrate;
int flags;
u_short ifindex;
u_int8_t media_type;
u_int8_t link_state;
u_int8_t nh_reachable; /* for nexthop verification */
};
struct session_up {
struct bgpd_addr local_addr;
struct bgpd_addr remote_addr;
struct capabilities capa_announced;
struct capabilities capa_received;
u_int32_t remote_bgpid;
u_int16_t short_as;
};
struct pftable_msg {
struct bgpd_addr addr;
char pftable[PFTABLE_LEN];
u_int8_t len;
};
struct ctl_show_nexthop {
struct bgpd_addr addr;
u_int8_t valid;
struct kif kif;
};
struct ctl_neighbor {
struct bgpd_addr addr;
char descr[PEER_DESCR_LEN];
int show_timers;
};
struct kroute_label {
struct kroute kr;
char label[RTLABEL_LEN];
};
struct kroute6_label {
struct kroute6 kr;
char label[RTLABEL_LEN];
};
#define F_RIB_ELIGIBLE 0x01
#define F_RIB_ACTIVE 0x02
#define F_RIB_INTERNAL 0x04
#define F_RIB_ANNOUNCE 0x08
struct ctl_show_rib {
struct bgpd_addr true_nexthop;
struct bgpd_addr exit_nexthop;
struct bgpd_addr prefix;
struct bgpd_addr remote_addr;
char descr[PEER_DESCR_LEN];
time_t lastchange;
u_int32_t remote_id;
u_int32_t local_pref;
u_int32_t med;
u_int32_t prefix_cnt;
u_int32_t active_cnt;
u_int32_t rib_cnt;
u_int16_t aspath_len;
u_int16_t flags;
u_int8_t prefixlen;
u_int8_t origin;
/* plus a aspath_len bytes long aspath */
};
struct ctl_show_rib_prefix {
struct bgpd_addr prefix;
time_t lastchange;
u_int16_t flags;
u_int8_t prefixlen;
};
enum as_spec {
AS_NONE,
AS_ALL,
AS_SOURCE,
AS_TRANSIT,
AS_PEER,
AS_EMPTY
};
struct filter_as {
enum as_spec type;
u_int32_t as;
};
struct filter_community {
int as;
int type;
};
struct ctl_show_rib_request {
char rib[PEER_DESCR_LEN];
struct ctl_neighbor neighbor;
struct bgpd_addr prefix;
struct filter_as as;
struct filter_community community;
u_int32_t peerid;
pid_t pid;
u_int16_t flags;
enum imsg_type type;
sa_family_t af;
u_int8_t prefixlen;
};
enum filter_actions {
ACTION_NONE,
ACTION_ALLOW,
ACTION_DENY
};
enum directions {
DIR_IN = 1,
DIR_OUT
};
enum from_spec {
FROM_ALL,
FROM_ADDRESS,
FROM_DESCR,
FROM_GROUP
};
enum comp_ops {
OP_NONE,
OP_RANGE,
OP_XRANGE,
OP_EQ,
OP_NE,
OP_LE,
OP_LT,
OP_GE,
OP_GT
};
struct filter_peers {
u_int32_t peerid;
u_int32_t groupid;
u_int16_t ribid;
};
/* special community type */
#define COMMUNITY_ERROR -1
#define COMMUNITY_ANY -2
#define COMMUNITY_NEIGHBOR_AS -3
#define COMMUNITY_UNSET -4
#define COMMUNITY_WELLKNOWN 0xffff
#define COMMUNITY_NO_EXPORT 0xff01
#define COMMUNITY_NO_ADVERTISE 0xff02
#define COMMUNITY_NO_EXPSUBCONFED 0xff03
#define COMMUNITY_NO_PEER 0xff04 /* RFC 3765 */
/* extended community definitions */
#define EXT_COMMUNITY_IANA 0x80
#define EXT_COMMUNITY_TRANSITIVE 0x40
#define EXT_COMMUNITY_VALUE 0x3f
/* extended types */
#define EXT_COMMUNITY_TWO_AS 0 /* 2 octet AS specific */
#define EXT_COMMUNITY_IPV4 1 /* IPv4 specific */
#define EXT_COMMUNITY_FOUR_AS 2 /* 4 octet AS specific */
#define EXT_COMMUNITY_OPAQUE 3 /* opaque ext community */
/* sub types */
#define EXT_COMMUNITY_ROUTE_TGT 2 /* RFC 4360 & RFC4364 */
#define EXT_CUMMUNITY_ROUTE_ORIG 3 /* RFC 4360 & RFC4364 */
#define EXT_COMMUNITY_OSPF_DOM_ID 5 /* RFC 4577 */
#define EXT_COMMUNITY_OSPF_RTR_TYPE 6 /* RFC 4577 */
#define EXT_COMMUNITY_OSPF_RTR_ID 7 /* RFC 4577 */
#define EXT_COMMUNITY_BGP_COLLECT 8 /* RFC 4384 */
struct filter_prefix {
struct bgpd_addr addr;
u_int8_t len;
};
struct filter_prefixlen {
enum comp_ops op;
sa_family_t af;
u_int8_t len_min;
u_int8_t len_max;
};
struct filter_match {
struct filter_prefix prefix;
struct filter_prefixlen prefixlen;
struct filter_as as;
struct filter_community community;
};
TAILQ_HEAD(filter_head, filter_rule);
struct filter_rule {
TAILQ_ENTRY(filter_rule) entry;
char rib[PEER_DESCR_LEN];
struct filter_peers peer;
struct filter_match match;
struct filter_set_head set;
enum filter_actions action;
enum directions dir;
u_int8_t quick;
};
enum action_types {
ACTION_SET_LOCALPREF,
ACTION_SET_RELATIVE_LOCALPREF,
ACTION_SET_MED,
ACTION_SET_RELATIVE_MED,
ACTION_SET_WEIGHT,
ACTION_SET_RELATIVE_WEIGHT,
ACTION_SET_PREPEND_SELF,
ACTION_SET_PREPEND_PEER,
ACTION_SET_NEXTHOP,
ACTION_SET_NEXTHOP_REJECT,
ACTION_SET_NEXTHOP_BLACKHOLE,
ACTION_SET_NEXTHOP_NOMODIFY,
ACTION_SET_NEXTHOP_SELF,
ACTION_SET_COMMUNITY,
ACTION_DEL_COMMUNITY,
ACTION_PFTABLE,
ACTION_PFTABLE_ID,
ACTION_RTLABEL,
ACTION_RTLABEL_ID
};
struct filter_set {
TAILQ_ENTRY(filter_set) entry;
union {
u_int8_t prepend;
u_int16_t id;
u_int32_t metric;
int32_t relative;
struct bgpd_addr nexthop;
struct filter_community community;
char pftable[PFTABLE_LEN];
char rtlabel[RTLABEL_LEN];
} action;
enum action_types type;
};
struct rrefresh {
u_int16_t afi;
u_int8_t safi;
};
struct rde_memstats {
int64_t path_cnt;
int64_t prefix_cnt;
int64_t rib_cnt;
int64_t pt4_cnt;
int64_t pt6_cnt;
int64_t nexthop_cnt;
int64_t aspath_cnt;
int64_t aspath_size;
int64_t aspath_refs;
int64_t attr_cnt;
int64_t attr_refs;
int64_t attr_data;
int64_t attr_dcnt;
};
struct rde_rib {
SIMPLEQ_ENTRY(rde_rib) entry;
char name[PEER_DESCR_LEN];
u_int16_t id;
u_int16_t flags;
};
SIMPLEQ_HEAD(rib_names, rde_rib);
extern struct rib_names ribnames;
/* Address Family Numbers as per RFC 1700 */
#define AFI_IPv4 1
#define AFI_IPv6 2
#define AFI_ALL 0xffff
/* Subsequent Address Family Identifier as per RFC 4760 */
#define SAFI_NONE 0x00
#define SAFI_UNICAST 0x01
#define SAFI_MULTICAST 0x02
#define SAFI_ALL 0xff
/* 4-byte magic AS number */
#define AS_TRANS 23456
/* prototypes */
/* bgpd.c */
void send_nexthop_update(struct kroute_nexthop *);
void send_imsg_session(int, pid_t, void *, u_int16_t);
int bgpd_redistribute(int, struct kroute *, struct kroute6 *);
int bgpd_filternexthop(struct kroute *, struct kroute6 *);
/* buffer.c */
struct buf *buf_open(size_t);
struct buf *buf_dynamic(size_t, size_t);
int buf_add(struct buf *, const void *, size_t);
void *buf_reserve(struct buf *, size_t);
void *buf_seek(struct buf *, size_t, size_t);
size_t buf_size(struct buf *);
size_t buf_left(struct buf *);
int buf_close(struct msgbuf *, struct buf *);
int buf_write(struct msgbuf *);
void buf_free(struct buf *);
void msgbuf_init(struct msgbuf *);
void msgbuf_clear(struct msgbuf *);
int msgbuf_write(struct msgbuf *);
/* log.c */
void log_init(int);
void vlog(int, const char *, va_list);
void log_peer_warn(const struct peer_config *, const char *, ...);
void log_peer_warnx(const struct peer_config *, const char *, ...);
void log_warn(const char *, ...);
void log_warnx(const char *, ...);
void log_info(const char *, ...);
void log_debug(const char *, ...);
void fatal(const char *) __dead;
void fatalx(const char *) __dead;
/* parse.y */
int cmdline_symset(char *);
/* config.c */
int host(const char *, struct bgpd_addr *, u_int8_t *);
/* imsg.c */
void imsg_init(struct imsgbuf *, int);
int imsg_read(struct imsgbuf *);
int imsg_get(struct imsgbuf *, struct imsg *);
int imsg_compose(struct imsgbuf *, enum imsg_type, u_int32_t, pid_t, int,
const void *, u_int16_t);
struct buf *imsg_create(struct imsgbuf *, enum imsg_type, u_int32_t, pid_t,
u_int16_t);
int imsg_add(struct buf *, const void *, u_int16_t);
int imsg_close(struct imsgbuf *, struct buf *);
void imsg_free(struct imsg *);
int imsg_get_fd(struct imsgbuf *);
/* kroute.c */
int kr_init(int, u_int);
int kr_change(struct kroute_label *);
int kr_delete(struct kroute_label *);
int kr6_change(struct kroute6_label *);
int kr6_delete(struct kroute6_label *);
void kr_shutdown(void);
void kr_fib_couple(void);
void kr_fib_decouple(void);
int kr_dispatch_msg(void);
int kr_nexthop_add(struct bgpd_addr *);
void kr_nexthop_delete(struct bgpd_addr *);
void kr_show_route(struct imsg *);
void kr_ifinfo(char *);
int kr_reload(void);
in_addr_t prefixlen2mask(u_int8_t);
struct in6_addr *prefixlen2mask6(u_int8_t prefixlen);
void inet6applymask(struct in6_addr *, const struct in6_addr *,
int);
/* control.c */
void control_cleanup(const char *);
int control_imsg_relay(struct imsg *);
/* pftable.c */
int pftable_exists(const char *);
int pftable_add(const char *);
int pftable_clear_all(void);
int pftable_addr_add(struct pftable_msg *);
int pftable_addr_remove(struct pftable_msg *);
int pftable_commit(void);
/* name2id.c */
u_int16_t rib_name2id(const char *);
const char *rib_id2name(u_int16_t);
void rib_unref(u_int16_t);
void rib_ref(u_int16_t);
u_int16_t rtlabel_name2id(const char *);
const char *rtlabel_id2name(u_int16_t);
void rtlabel_unref(u_int16_t);
void rtlabel_ref(u_int16_t);
u_int16_t pftable_name2id(const char *);
const char *pftable_id2name(u_int16_t);
void pftable_unref(u_int16_t);
void pftable_ref(u_int16_t);
/* rde_filter.c */
void filterset_free(struct filter_set_head *);
int filterset_cmp(struct filter_set *, struct filter_set *);
const char *filterset_name(enum action_types);
/* util.c */
const char *log_addr(const struct bgpd_addr *);
const char *log_in6addr(const struct in6_addr *);
const char *log_sockaddr(struct sockaddr *);
const char *log_as(u_int32_t);
int aspath_snprint(char *, size_t, void *, u_int16_t);
int aspath_asprint(char **, void *, u_int16_t);
size_t aspath_strlen(void *, u_int16_t);
#endif /* __BGPD_H__ */
|