2 Copyright (C) 1999, 2000 Kunihiro Ishiguro
4 This file is part of GNU Zebra.
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
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.
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
24 #include <net-snmp/net-snmp-config.h>
25 #include <net-snmp/net-snmp-includes.h>
35 #include "bgpd/bgpd.h"
36 #include "bgpd/bgp_table.h"
37 #include "bgpd/bgp_aspath.h"
38 #include "bgpd/bgp_attr.h"
39 #include "bgpd/bgp_route.h"
40 #include "bgpd/bgp_fsm.h"
41 #include "bgpd/bgp_snmp.h"
43 /* BGP4-MIB described in RFC1657. */
44 #define BGP4MIB 1,3,6,1,2,1,15
47 #define BGPESTABLISHED 1
48 #define BGPBACKWARDTRANSITION 2
50 /* BGP MIB bgpVersion. */
53 /* BGP MIB bgpLocalAs. */
56 /* BGP MIB bgpPeerTable. */
57 #define BGPPEERIDENTIFIER 1
58 #define BGPPEERSTATE 2
59 #define BGPPEERADMINSTATUS 3
60 #define BGPPEERNEGOTIATEDVERSION 4
61 #define BGPPEERLOCALADDR 5
62 #define BGPPEERLOCALPORT 6
63 #define BGPPEERREMOTEADDR 7
64 #define BGPPEERREMOTEPORT 8
65 #define BGPPEERREMOTEAS 9
66 #define BGPPEERINUPDATES 10
67 #define BGPPEEROUTUPDATES 11
68 #define BGPPEERINTOTALMESSAGES 12
69 #define BGPPEEROUTTOTALMESSAGES 13
70 #define BGPPEERLASTERROR 14
71 #define BGPPEERFSMESTABLISHEDTRANSITIONS 15
72 #define BGPPEERFSMESTABLISHEDTIME 16
73 #define BGPPEERCONNECTRETRYINTERVAL 17
74 #define BGPPEERHOLDTIME 18
75 #define BGPPEERKEEPALIVE 19
76 #define BGPPEERHOLDTIMECONFIGURED 20
77 #define BGPPEERKEEPALIVECONFIGURED 21
78 #define BGPPEERMINROUTEADVERTISEMENTINTERVAL 22
79 #define BGPPEERINUPDATEELAPSEDTIME 23
81 /* BGP MIB bgpIdentifier. */
82 #define BGPIDENTIFIER 0
84 /* BGP MIB bgpRcvdPathAttrTable */
85 #define BGPPATHATTRPEER 1
86 #define BGPPATHATTRDESTNETWORK 2
87 #define BGPPATHATTRORIGIN 3
88 #define BGPPATHATTRASPATH 4
89 #define BGPPATHATTRNEXTHOP 5
90 #define BGPPATHATTRINTERASMETRIC 6
92 /* BGP MIB bgp4PathAttrTable. */
93 #define BGP4PATHATTRPEER 1
94 #define BGP4PATHATTRIPADDRPREFIXLEN 2
95 #define BGP4PATHATTRIPADDRPREFIX 3
96 #define BGP4PATHATTRORIGIN 4
97 #define BGP4PATHATTRASPATHSEGMENT 5
98 #define BGP4PATHATTRNEXTHOP 6
99 #define BGP4PATHATTRMULTIEXITDISC 7
100 #define BGP4PATHATTRLOCALPREF 8
101 #define BGP4PATHATTRATOMICAGGREGATE 9
102 #define BGP4PATHATTRAGGREGATORAS 10
103 #define BGP4PATHATTRAGGREGATORADDR 11
104 #define BGP4PATHATTRCALCLOCALPREF 12
105 #define BGP4PATHATTRBEST 13
106 #define BGP4PATHATTRUNKNOWN 14
108 /* SNMP value hack. */
109 #define INTEGER ASN_INTEGER
110 #define INTEGER32 ASN_INTEGER
111 #define COUNTER32 ASN_COUNTER
112 #define OCTET_STRING ASN_OCTET_STR
113 #define IPADDRESS ASN_IPADDRESS
114 #define GAUGE32 ASN_UNSIGNED
116 /* Declare static local variables for convenience. */
119 /* BGP-MIB instances. */
120 static oid bgp_oid
[] = { BGP4MIB
};
121 static oid bgp_trap_oid
[] = { BGP4MIB
, 0 };
123 /* IP address 0.0.0.0. */
124 static struct in_addr bgp_empty_addr
= { .s_addr
= 0 };
126 /* Hook functions. */
127 static u_char
*bgpVersion (struct variable
*, oid
[], size_t *, int,
128 size_t *, WriteMethod
**);
129 static u_char
*bgpLocalAs (struct variable
*, oid
[], size_t *,
130 int, size_t *, WriteMethod
**);
131 static u_char
*bgpPeerTable (struct variable
*, oid
[], size_t *,
132 int, size_t *, WriteMethod
**);
133 static u_char
*bgpRcvdPathAttrTable (struct variable
*, oid
[], size_t *,
134 int, size_t *, WriteMethod
**);
135 static u_char
*bgpIdentifier (struct variable
*, oid
[], size_t *,
136 int, size_t *, WriteMethod
**);
137 static u_char
*bgp4PathAttrTable (struct variable
*, oid
[], size_t *,
138 int, size_t *, WriteMethod
**);
139 /* static u_char *bgpTraps (); */
141 static struct variable bgp_variables
[] =
144 {BGPVERSION
, OCTET_STRING
, RONLY
, bgpVersion
,
147 {BGPLOCALAS
, INTEGER
, RONLY
, bgpLocalAs
,
149 /* BGP peer table. */
150 {BGPPEERIDENTIFIER
, IPADDRESS
, RONLY
, bgpPeerTable
,
152 {BGPPEERSTATE
, INTEGER
, RONLY
, bgpPeerTable
,
154 {BGPPEERADMINSTATUS
, INTEGER
, RWRITE
, bgpPeerTable
,
156 {BGPPEERNEGOTIATEDVERSION
, INTEGER32
, RONLY
, bgpPeerTable
,
158 {BGPPEERLOCALADDR
, IPADDRESS
, RONLY
, bgpPeerTable
,
160 {BGPPEERLOCALPORT
, INTEGER
, RONLY
, bgpPeerTable
,
162 {BGPPEERREMOTEADDR
, IPADDRESS
, RONLY
, bgpPeerTable
,
164 {BGPPEERREMOTEPORT
, INTEGER
, RONLY
, bgpPeerTable
,
166 {BGPPEERREMOTEAS
, INTEGER
, RONLY
, bgpPeerTable
,
168 {BGPPEERINUPDATES
, COUNTER32
, RONLY
, bgpPeerTable
,
170 {BGPPEEROUTUPDATES
, COUNTER32
, RONLY
, bgpPeerTable
,
172 {BGPPEERINTOTALMESSAGES
, COUNTER32
, RONLY
, bgpPeerTable
,
174 {BGPPEEROUTTOTALMESSAGES
, COUNTER32
, RONLY
, bgpPeerTable
,
176 {BGPPEERLASTERROR
, OCTET_STRING
, RONLY
, bgpPeerTable
,
178 {BGPPEERFSMESTABLISHEDTRANSITIONS
, COUNTER32
, RONLY
, bgpPeerTable
,
180 {BGPPEERFSMESTABLISHEDTIME
, GAUGE32
, RONLY
, bgpPeerTable
,
182 {BGPPEERCONNECTRETRYINTERVAL
, INTEGER
, RWRITE
, bgpPeerTable
,
184 {BGPPEERHOLDTIME
, INTEGER
, RONLY
, bgpPeerTable
,
186 {BGPPEERKEEPALIVE
, INTEGER
, RONLY
, bgpPeerTable
,
188 {BGPPEERHOLDTIMECONFIGURED
, INTEGER
, RWRITE
, bgpPeerTable
,
190 {BGPPEERKEEPALIVECONFIGURED
, INTEGER
, RWRITE
, bgpPeerTable
,
192 {BGPPEERMINROUTEADVERTISEMENTINTERVAL
, INTEGER
, RWRITE
, bgpPeerTable
,
194 {BGPPEERINUPDATEELAPSEDTIME
, GAUGE32
, RONLY
, bgpPeerTable
,
196 /* BGP identifier. */
197 {BGPIDENTIFIER
, IPADDRESS
, RONLY
, bgpIdentifier
,
199 /* BGP received path attribute table. */
200 {BGPPATHATTRPEER
, IPADDRESS
, RONLY
, bgpRcvdPathAttrTable
,
202 {BGPPATHATTRDESTNETWORK
, IPADDRESS
, RONLY
, bgpRcvdPathAttrTable
,
204 {BGPPATHATTRORIGIN
, INTEGER
, RONLY
, bgpRcvdPathAttrTable
,
206 {BGPPATHATTRASPATH
, OCTET_STRING
, RONLY
, bgpRcvdPathAttrTable
,
208 {BGPPATHATTRNEXTHOP
, IPADDRESS
, RONLY
, bgpRcvdPathAttrTable
,
210 {BGPPATHATTRINTERASMETRIC
, INTEGER32
, RONLY
, bgpRcvdPathAttrTable
,
212 /* BGP-4 received path attribute table. */
213 {BGP4PATHATTRPEER
, IPADDRESS
, RONLY
, bgp4PathAttrTable
,
215 {BGP4PATHATTRIPADDRPREFIXLEN
, INTEGER
, RONLY
, bgp4PathAttrTable
,
217 {BGP4PATHATTRIPADDRPREFIX
, IPADDRESS
, RONLY
, bgp4PathAttrTable
,
219 {BGP4PATHATTRORIGIN
, INTEGER
, RONLY
, bgp4PathAttrTable
,
221 {BGP4PATHATTRASPATHSEGMENT
, OCTET_STRING
, RONLY
, bgp4PathAttrTable
,
223 {BGP4PATHATTRNEXTHOP
, IPADDRESS
, RONLY
, bgp4PathAttrTable
,
225 {BGP4PATHATTRMULTIEXITDISC
, INTEGER
, RONLY
, bgp4PathAttrTable
,
227 {BGP4PATHATTRLOCALPREF
, INTEGER
, RONLY
, bgp4PathAttrTable
,
229 {BGP4PATHATTRATOMICAGGREGATE
, INTEGER
, RONLY
, bgp4PathAttrTable
,
231 {BGP4PATHATTRAGGREGATORAS
, INTEGER
, RONLY
, bgp4PathAttrTable
,
233 {BGP4PATHATTRAGGREGATORADDR
, IPADDRESS
, RONLY
, bgp4PathAttrTable
,
235 {BGP4PATHATTRCALCLOCALPREF
, INTEGER
, RONLY
, bgp4PathAttrTable
,
237 {BGP4PATHATTRBEST
, INTEGER
, RONLY
, bgp4PathAttrTable
,
239 {BGP4PATHATTRUNKNOWN
, OCTET_STRING
, RONLY
, bgp4PathAttrTable
,
245 bgpVersion (struct variable
*v
, oid name
[], size_t *length
, int exact
,
246 size_t *var_len
, WriteMethod
**write_method
)
248 static u_char version
;
250 if (smux_header_generic(v
, name
, length
, exact
, var_len
, write_method
)
254 /* Retrun BGP version. Zebra bgpd only support version 4. */
255 version
= (0x80 >> (BGP_VERSION_4
- 1));
257 /* Return octet string length 1. */
259 return (u_char
*)&version
;
263 bgpLocalAs (struct variable
*v
, oid name
[], size_t *length
,
264 int exact
, size_t *var_len
, WriteMethod
**write_method
)
268 if (smux_header_generic(v
, name
, length
, exact
, var_len
, write_method
)
272 /* Get BGP structure. */
273 bgp
= bgp_get_default ();
277 return SNMP_INTEGER (bgp
->as
);
281 peer_lookup_addr_ipv4 (struct in_addr
*src
)
285 struct listnode
*node
;
289 bgp
= bgp_get_default ();
293 for (ALL_LIST_ELEMENTS_RO (bgp
->peer
, node
, peer
))
295 ret
= inet_pton (AF_INET
, peer
->host
, &addr
);
298 if (IPV4_ADDR_SAME (&addr
, src
))
306 bgp_peer_lookup_next (struct in_addr
*src
)
310 struct listnode
*node
;
315 sockunion_init (&su
);
317 bgp
= bgp_get_default ();
321 for (ALL_LIST_ELEMENTS_RO (bgp
->peer
, node
, peer
))
323 ret
= inet_pton (AF_INET
, peer
->host
, &su
.sin
.sin_addr
);
326 p
= &su
.sin
.sin_addr
;
328 if (ntohl (p
->s_addr
) > ntohl (src
->s_addr
))
330 src
->s_addr
= p
->s_addr
;
338 /* 1.3.6.1.2.1.15.3.1.x = 10 */
339 #define PEERTAB_NAMELEN 10
342 bgpPeerTable_lookup (struct variable
*v
, oid name
[], size_t *length
,
343 struct in_addr
*addr
, int exact
)
345 struct peer
*peer
= NULL
;
346 size_t namelen
= v
? v
->namelen
: PEERTAB_NAMELEN
;
351 /* Check the length. */
352 if (*length
- namelen
!= sizeof (struct in_addr
))
355 oid2in_addr (name
+ namelen
, IN_ADDR_SIZE
, addr
);
357 peer
= peer_lookup_addr_ipv4 (addr
);
362 len
= *length
- namelen
;
363 if (len
> 4) len
= 4;
365 oid2in_addr (name
+ namelen
, len
, addr
);
367 peer
= bgp_peer_lookup_next (addr
);
372 oid_copy_addr (name
+ namelen
, addr
, sizeof (struct in_addr
));
373 *length
= sizeof (struct in_addr
) + namelen
;
380 /* BGP write methods. */
382 write_bgpPeerTable (int action
, u_char
*var_val
,
383 u_char var_val_type
, size_t var_val_len
,
384 u_char
*statP
, oid
*name
, size_t length
)
390 if (var_val_type
!= ASN_INTEGER
)
392 return SNMP_ERR_WRONGTYPE
;
394 if (var_val_len
!= sizeof (long))
396 return SNMP_ERR_WRONGLENGTH
;
399 intval
= *(long *)var_val
;
401 memset (&addr
, 0, sizeof (struct in_addr
));
403 peer
= bgpPeerTable_lookup (NULL
, name
, &length
, &addr
, 1);
405 return SNMP_ERR_NOSUCHNAME
;
407 if (action
!= SNMP_MSG_INTERNAL_SET_COMMIT
)
408 return SNMP_ERR_NOERROR
;
410 zlog_info ("%s: SNMP write .%ld = %ld",
411 peer
->host
, (long)name
[PEERTAB_NAMELEN
- 1], intval
);
413 switch (name
[PEERTAB_NAMELEN
- 1])
415 case BGPPEERADMINSTATUS
:
416 #define BGP_PeerAdmin_stop 1
417 #define BGP_PeerAdmin_start 2
418 /* When the peer is established, */
419 if (intval
== BGP_PeerAdmin_stop
)
420 BGP_EVENT_ADD (peer
, BGP_Stop
);
421 else if (intval
== BGP_PeerAdmin_start
)
424 return SNMP_ERR_NOSUCHNAME
;
426 case BGPPEERCONNECTRETRYINTERVAL
:
427 SET_FLAG (peer
->config
, PEER_CONFIG_CONNECT
);
428 peer
->connect
= intval
;
429 peer
->v_connect
= intval
;
431 case BGPPEERHOLDTIMECONFIGURED
:
432 SET_FLAG (peer
->config
, PEER_CONFIG_TIMER
);
433 peer
->holdtime
= intval
;
434 peer
->v_holdtime
= intval
;
436 case BGPPEERKEEPALIVECONFIGURED
:
437 SET_FLAG (peer
->config
, PEER_CONFIG_TIMER
);
438 peer
->keepalive
= intval
;
439 peer
->v_keepalive
= intval
;
441 case BGPPEERMINROUTEADVERTISEMENTINTERVAL
:
442 peer
->v_routeadv
= intval
;
445 return SNMP_ERR_NOERROR
;
449 bgpPeerTable (struct variable
*v
, oid name
[], size_t *length
,
450 int exact
, size_t *var_len
, WriteMethod
**write_method
)
452 static struct in_addr addr
;
455 if (smux_header_table(v
, name
, length
, exact
, var_len
, write_method
)
458 memset (&addr
, 0, sizeof (struct in_addr
));
460 peer
= bgpPeerTable_lookup (v
, name
, length
, &addr
, exact
);
466 case BGPPEERIDENTIFIER
:
467 return SNMP_IPADDRESS (peer
->remote_id
);
470 return SNMP_INTEGER (peer
->status
);
472 case BGPPEERADMINSTATUS
:
473 *write_method
= write_bgpPeerTable
;
474 #define BGP_PeerAdmin_stop 1
475 #define BGP_PeerAdmin_start 2
476 if (CHECK_FLAG (peer
->flags
, PEER_FLAG_SHUTDOWN
))
477 return SNMP_INTEGER (BGP_PeerAdmin_stop
);
479 return SNMP_INTEGER (BGP_PeerAdmin_start
);
481 case BGPPEERNEGOTIATEDVERSION
:
482 return SNMP_INTEGER (BGP_VERSION_4
);
484 case BGPPEERLOCALADDR
:
486 return SNMP_IPADDRESS (peer
->su_local
->sin
.sin_addr
);
488 return SNMP_IPADDRESS (bgp_empty_addr
);
490 case BGPPEERLOCALPORT
:
492 return SNMP_INTEGER (ntohs (peer
->su_local
->sin
.sin_port
));
494 return SNMP_INTEGER (0);
496 case BGPPEERREMOTEADDR
:
498 return SNMP_IPADDRESS (peer
->su_remote
->sin
.sin_addr
);
500 return SNMP_IPADDRESS (bgp_empty_addr
);
502 case BGPPEERREMOTEPORT
:
504 return SNMP_INTEGER (ntohs (peer
->su_remote
->sin
.sin_port
));
506 return SNMP_INTEGER (0);
508 case BGPPEERREMOTEAS
:
509 return SNMP_INTEGER (peer
->as
);
511 case BGPPEERINUPDATES
:
512 return SNMP_INTEGER (peer
->update_in
);
514 case BGPPEEROUTUPDATES
:
515 return SNMP_INTEGER (peer
->update_out
);
517 case BGPPEERINTOTALMESSAGES
:
518 return SNMP_INTEGER (peer
->open_in
+ peer
->update_in
519 + peer
->keepalive_in
+ peer
->notify_in
520 + peer
->refresh_in
+ peer
->dynamic_cap_in
);
522 case BGPPEEROUTTOTALMESSAGES
:
523 return SNMP_INTEGER (peer
->open_out
+ peer
->update_out
524 + peer
->keepalive_out
+ peer
->notify_out
525 + peer
->refresh_out
+ peer
->dynamic_cap_out
);
527 case BGPPEERLASTERROR
:
529 static u_char lasterror
[2];
530 lasterror
[0] = peer
->notify
.code
;
531 lasterror
[1] = peer
->notify
.subcode
;
533 return (u_char
*)&lasterror
;
536 case BGPPEERFSMESTABLISHEDTRANSITIONS
:
537 return SNMP_INTEGER (peer
->established
);
539 case BGPPEERFSMESTABLISHEDTIME
:
540 if (peer
->uptime
== 0)
541 return SNMP_INTEGER (0);
543 return SNMP_INTEGER (bgp_clock () - peer
->uptime
);
545 case BGPPEERCONNECTRETRYINTERVAL
:
546 *write_method
= write_bgpPeerTable
;
547 return SNMP_INTEGER (peer
->v_connect
);
549 case BGPPEERHOLDTIME
:
550 return SNMP_INTEGER (peer
->v_holdtime
);
552 case BGPPEERKEEPALIVE
:
553 return SNMP_INTEGER (peer
->v_keepalive
);
555 case BGPPEERHOLDTIMECONFIGURED
:
556 *write_method
= write_bgpPeerTable
;
557 if (CHECK_FLAG (peer
->config
, PEER_CONFIG_TIMER
))
558 return SNMP_INTEGER (peer
->holdtime
);
560 return SNMP_INTEGER (peer
->v_holdtime
);
562 case BGPPEERKEEPALIVECONFIGURED
:
563 *write_method
= write_bgpPeerTable
;
564 if (CHECK_FLAG (peer
->config
, PEER_CONFIG_TIMER
))
565 return SNMP_INTEGER (peer
->keepalive
);
567 return SNMP_INTEGER (peer
->v_keepalive
);
569 case BGPPEERMINROUTEADVERTISEMENTINTERVAL
:
570 *write_method
= write_bgpPeerTable
;
571 return SNMP_INTEGER (peer
->v_routeadv
);
573 case BGPPEERINUPDATEELAPSEDTIME
:
574 if (peer
->update_time
== 0)
575 return SNMP_INTEGER (0);
577 return SNMP_INTEGER (bgp_clock () - peer
->update_time
);
587 bgpIdentifier (struct variable
*v
, oid name
[], size_t *length
,
588 int exact
, size_t *var_len
, WriteMethod
**write_method
)
592 if (smux_header_generic(v
, name
, length
, exact
, var_len
, write_method
)
596 bgp
= bgp_get_default ();
600 return SNMP_IPADDRESS (bgp
->router_id
);
604 bgpRcvdPathAttrTable (struct variable
*v
, oid name
[], size_t *length
,
605 int exact
, size_t *var_len
, WriteMethod
**write_method
)
607 /* Received Path Attribute Table. This table contains, one entry
608 per path to a network, path attributes received from all peers
609 running BGP version 3 or less. This table is obsolete, having
610 been replaced in functionality with the bgp4PathAttrTable. */
614 static struct bgp_info
*
615 bgp4PathAttrLookup (struct variable
*v
, oid name
[], size_t *length
,
616 struct bgp
*bgp
, struct prefix_ipv4
*addr
, int exact
)
620 struct bgp_info
*binfo
;
621 struct bgp_info
*min
;
625 struct in_addr paddr
;
627 sockunion_init (&su
);
629 #define BGP_PATHATTR_ENTRY_OFFSET \
630 (IN_ADDR_SIZE + 1 + IN_ADDR_SIZE)
634 if (*length
- v
->namelen
!= BGP_PATHATTR_ENTRY_OFFSET
)
637 /* Set OID offset for prefix. */
638 offset
= name
+ v
->namelen
;
639 oid2in_addr (offset
, IN_ADDR_SIZE
, &addr
->prefix
);
640 offset
+= IN_ADDR_SIZE
;
643 addr
->prefixlen
= *offset
;
647 su
.sin
.sin_family
= AF_INET
;
648 oid2in_addr (offset
, IN_ADDR_SIZE
, &su
.sin
.sin_addr
);
651 rn
= bgp_node_lookup (bgp
->rib
[AFI_IP
][SAFI_UNICAST
],
652 (struct prefix
*) addr
);
655 bgp_unlock_node (rn
);
657 for (binfo
= rn
->info
; binfo
; binfo
= binfo
->next
)
658 if (sockunion_same (&binfo
->peer
->su
, &su
))
664 offset
= name
+ v
->namelen
;
665 offsetlen
= *length
- v
->namelen
;
669 rn
= bgp_table_top (bgp
->rib
[AFI_IP
][SAFI_UNICAST
]);
672 if (len
> IN_ADDR_SIZE
)
675 oid2in_addr (offset
, len
, &addr
->prefix
);
677 offset
+= IN_ADDR_SIZE
;
678 offsetlen
-= IN_ADDR_SIZE
;
681 addr
->prefixlen
= *offset
;
683 addr
->prefixlen
= len
* 8;
685 rn
= bgp_node_get (bgp
->rib
[AFI_IP
][SAFI_UNICAST
],
686 (struct prefix
*) addr
);
695 if (len
> IN_ADDR_SIZE
)
698 oid2in_addr (offset
, len
, &paddr
);
710 for (binfo
= rn
->info
; binfo
; binfo
= binfo
->next
)
712 if (binfo
->peer
->su
.sin
.sin_family
== AF_INET
713 && ntohl (paddr
.s_addr
)
714 < ntohl (binfo
->peer
->su
.sin
.sin_addr
.s_addr
))
718 if (ntohl (binfo
->peer
->su
.sin
.sin_addr
.s_addr
)
719 < ntohl (min
->peer
->su
.sin
.sin_addr
.s_addr
))
729 *length
= v
->namelen
+ BGP_PATHATTR_ENTRY_OFFSET
;
731 offset
= name
+ v
->namelen
;
732 oid_copy_addr (offset
, &rn
->p
.u
.prefix4
, IN_ADDR_SIZE
);
733 offset
+= IN_ADDR_SIZE
;
734 *offset
= rn
->p
.prefixlen
;
736 oid_copy_addr (offset
, &min
->peer
->su
.sin
.sin_addr
,
738 addr
->prefix
= rn
->p
.u
.prefix4
;
739 addr
->prefixlen
= rn
->p
.prefixlen
;
741 bgp_unlock_node (rn
);
748 while ((rn
= bgp_route_next (rn
)) != NULL
);
754 bgp4PathAttrTable (struct variable
*v
, oid name
[], size_t *length
,
755 int exact
, size_t *var_len
, WriteMethod
**write_method
)
758 struct bgp_info
*binfo
;
759 struct prefix_ipv4 addr
;
761 bgp
= bgp_get_default ();
765 if (smux_header_table(v
, name
, length
, exact
, var_len
, write_method
)
768 memset (&addr
, 0, sizeof (struct prefix_ipv4
));
770 binfo
= bgp4PathAttrLookup (v
, name
, length
, bgp
, &addr
, exact
);
776 case BGP4PATHATTRPEER
: /* 1 */
777 return SNMP_IPADDRESS (binfo
->peer
->su
.sin
.sin_addr
);
779 case BGP4PATHATTRIPADDRPREFIXLEN
: /* 2 */
780 return SNMP_INTEGER (addr
.prefixlen
);
782 case BGP4PATHATTRIPADDRPREFIX
: /* 3 */
783 return SNMP_IPADDRESS (addr
.prefix
);
785 case BGP4PATHATTRORIGIN
: /* 4 */
786 return SNMP_INTEGER (binfo
->attr
->origin
);
788 case BGP4PATHATTRASPATHSEGMENT
: /* 5 */
789 return aspath_snmp_pathseg (binfo
->attr
->aspath
, var_len
);
791 case BGP4PATHATTRNEXTHOP
: /* 6 */
792 return SNMP_IPADDRESS (binfo
->attr
->nexthop
);
794 case BGP4PATHATTRMULTIEXITDISC
: /* 7 */
795 return SNMP_INTEGER (binfo
->attr
->med
);
797 case BGP4PATHATTRLOCALPREF
: /* 8 */
798 return SNMP_INTEGER (binfo
->attr
->local_pref
);
800 case BGP4PATHATTRATOMICAGGREGATE
: /* 9 */
801 return SNMP_INTEGER (1);
803 case BGP4PATHATTRAGGREGATORAS
: /* 10 */
804 if (binfo
->attr
->extra
)
805 return SNMP_INTEGER (binfo
->attr
->extra
->aggregator_as
);
807 return SNMP_INTEGER (0);
809 case BGP4PATHATTRAGGREGATORADDR
: /* 11 */
810 if (binfo
->attr
->extra
)
811 return SNMP_IPADDRESS (binfo
->attr
->extra
->aggregator_addr
);
813 return SNMP_INTEGER (0);
815 case BGP4PATHATTRCALCLOCALPREF
: /* 12 */
816 return SNMP_INTEGER (-1);
818 case BGP4PATHATTRBEST
: /* 13 */
819 #define BGP4_PathAttrBest_false 1
820 #define BGP4_PathAttrBest_true 2
821 if (CHECK_FLAG (binfo
->flags
, BGP_INFO_SELECTED
))
822 return SNMP_INTEGER (BGP4_PathAttrBest_true
);
824 return SNMP_INTEGER (BGP4_PathAttrBest_false
);
826 case BGP4PATHATTRUNKNOWN
: /* 14 */
835 static struct trap_object bgpTrapList
[] =
837 {3, {3, 1, BGPPEERLASTERROR
}},
838 {3, {3, 1, BGPPEERSTATE
}}
842 bgpTrapEstablished (struct peer
*peer
)
846 oid index
[sizeof (oid
) * IN_ADDR_SIZE
];
848 ret
= inet_aton (peer
->host
, &addr
);
852 oid_copy_addr (index
, &addr
, IN_ADDR_SIZE
);
854 smux_trap (bgp_variables
, sizeof bgp_variables
/ sizeof (struct variable
),
855 bgp_trap_oid
, sizeof bgp_trap_oid
/ sizeof (oid
),
856 bgp_oid
, sizeof bgp_oid
/ sizeof (oid
),
858 bgpTrapList
, sizeof bgpTrapList
/ sizeof (struct trap_object
),
863 bgpTrapBackwardTransition (struct peer
*peer
)
867 oid index
[sizeof (oid
) * IN_ADDR_SIZE
];
869 ret
= inet_aton (peer
->host
, &addr
);
873 oid_copy_addr (index
, &addr
, IN_ADDR_SIZE
);
875 smux_trap (bgp_variables
, sizeof bgp_variables
/ sizeof (struct variable
),
876 bgp_trap_oid
, sizeof bgp_trap_oid
/ sizeof (oid
),
877 bgp_oid
, sizeof bgp_oid
/ sizeof (oid
),
879 bgpTrapList
, sizeof bgpTrapList
/ sizeof (struct trap_object
),
880 BGPBACKWARDTRANSITION
);
886 smux_init (bm
->master
);
887 REGISTER_MIB("mibII/bgp", bgp_variables
, variable
, bgp_oid
);
889 #endif /* HAVE_SNMP */