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0f0ab51808
mirror_frr/ospf6d/ospf6_snmp.c
Vincent Bernat 0f0ab51808 snmp: fix OSPFV3-MIB implementation 
Use the real MIB from RFC 5643. Fix used ASN1 types. Indexes are not
exported any more (they are "no access"). Fix some endian
issues. Also, ID are just integers, not IPv4 addresses.

No additional OID are supported in this commit.
2012-06-25 19:05:16 +02:00

602 lines
19 KiB
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/* OSPFv3 SNMP support
* Copyright (C) 2004 Yasuhiro Ohara
*
* This file is part of GNU Zebra.
*
* GNU Zebra is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* GNU Zebra is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Zebra; see the file COPYING. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <zebra.h>
#ifdef HAVE_SNMP
#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-includes.h>
#include "log.h"
#include "vty.h"
#include "linklist.h"
#include "smux.h"
#include "ospf6_proto.h"
#include "ospf6_lsa.h"
#include "ospf6_lsdb.h"
#include "ospf6_route.h"
#include "ospf6_top.h"
#include "ospf6_area.h"
#include "ospf6_interface.h"
#include "ospf6_message.h"
#include "ospf6_neighbor.h"
#include "ospf6d.h"
#include "ospf6_snmp.h"
/* OSPFv3-MIB */
#define OSPFv3MIB 1,3,6,1,2,1,191
/* OSPFv3 MIB General Group values. */
#define OSPFv3ROUTERID 1
#define OSPFv3ADMINSTAT 2
#define OSPFv3VERSIONNUMBER 3
#define OSPFv3AREABDRRTRSTATUS 4
#define OSPFv3ASBDRRTRSTATUS 5
#define OSPFv3ASSCOPELSACOUNT 6
#define OSPFv3ASSCOPELSACHECKSUMSUM 7
#define OSPFv3ORIGINATENEWLSAS 8
#define OSPFv3RXNEWLSAS 9
#define OSPFv3EXTLSACOUNT 10
#define OSPFv3EXTAREALSDBLIMIT 11
#define OSPFv3EXITOVERFLOWINTERVAL 12
#define OSPFv3DEMANDEXTENSIONS 13
#define OSPFv3REFERENCEBANDWIDTH 14
#define OSPFv3RESTARTSUPPORT 15
#define OSPFv3RESTARTINTERVAL 16
#define OSPFv3RESTARTSTRICTLSACHECKING 17
#define OSPFv3RESTARTSTATUS 18
#define OSPFv3RESTARTAGE 19
#define OSPFv3RESTARTEXITREASON 20
#define OSPFv3NOTIFICATIONENABLE 21
#define OSPFv3STUBROUTERSUPPORT 22
#define OSPFv3STUBROUTERADVERTISEMENT 23
#define OSPFv3DISCONTINUITYTIME 24
#define OSPFv3RESTARTTIME 25
/* OSPFv3 MIB Area Table values: ospfv3AreaTable */
#define OSPFv3IMPORTASEXTERN 2
#define OSPFv3AREASPFRUNS 3
#define OSPFv3AREABDRRTRCOUNT 4
#define OSPFv3AREAASBDRRTRCOUNT 5
#define OSPFv3AREASCOPELSACOUNT 6
#define OSPFv3AREASCOPELSACKSUMSUM 7
#define OSPFv3AREASUMMARY 8
#define OSPFv3AREAROWSTATUS 9
#define OSPFv3AREASTUBMETRIC 10
#define OSPFv3AREANSSATRANSLATORROLE 11
#define OSPFv3AREANSSATRANSLATORSTATE 12
#define OSPFv3AREANSSATRANSLATORSTABINTERVAL 13
#define OSPFv3AREANSSATRANSLATOREVENTS 14
#define OSPFv3AREASTUBMETRICTYPE 15
#define OSPFv3AREATEENABLED 16
/* OSPFv3 MIB AS Lsdb Table values: ospfv3AsLsdbTable */
#define OSPFv3ASLSDBSEQUENCE 4
#define OSPFv3ASLSDBAGE 5
#define OSPFv3ASLSDBCHECKSUM 6
#define OSPFv3ASLSDBADVERTISEMENT 7
#define OSPFv3ASLSDBTYPEKNOWN 8
/* OSPFv3 MIB Area Lsdb Table values: ospfv3AreaLsdbTable */
#define OSPFv3AREALSDBSEQUENCE 5
#define OSPFv3AREALSDBAGE 6
#define OSPFv3AREALSDBCHECKSUM 7
#define OSPFv3AREALSDBADVERTISEMENT 8
#define OSPFv3AREALSDBTYPEKNOWN 9
/* OSPFv3 MIB Link Lsdb Table values: ospfv3LinkLsdbTable */
#define OSPFv3LINKLSDBSEQUENCE 6
#define OSPFv3LINKLSDBAGE 7
#define OSPFv3LINKLSDBCHECKSUM 8
#define OSPFv3LINKLSDBADVERTISEMENT 9
#define OSPFv3LINKLSDBTYPEKNOWN 10
/* OSPFv3 MIB Host Table values: ospfv3HostTable */
#define OSPFv3HOSTMETRIC 3
#define OSPFv3HOSTROWSTATUS 4
#define OSPFv3HOSTAREAID 5
/* OSPFv3 MIB Interface Table values: ospfv3IfTable */
#define OSPFv3IFAREAID 3
#define OSPFv3IFTYPE 4
#define OSPFv3IFADMINSTATUS 5
#define OSPFv3IFRTRPRIORITY 6
#define OSPFv3IFTRANSITDELAY 7
#define OSPFv3IFRETRANSINTERVAL 8
#define OSPFv3IFHELLOINTERVAL 9
#define OSPFv3IFRTRDEADINTERVAL 10
#define OSPFv3IFPOLLINTERVAL 11
#define OSPFv3IFSTATE 12
#define OSPFv3IFDESIGNATEDROUTER 13
#define OSPFv3IFBACKUPDESIGNATEDROUTER 14
#define OSPFv3IFEVENTS 15
#define OSPFv3IFROWSTATUS 16
#define OSPFv3IFDEMAND 17
#define OSPFv3IFMETRICVALUE 18
#define OSPFv3IFLINKSCOPELSACOUNT 19
#define OSPFv3IFLINKLSACKSUMSUM 20
#define OSPFv3IFDEMANDNBRPROBE 21
#define OSPFv3IFDEMANDNBRPROBERETRANSLIMIT 22
#define OSPFv3IFDEMANDNBRPROBEINTERVAL 23
#define OSPFv3IFTEDISABLED 24
#define OSPFv3IFLINKLSASUPPRESSION 25
/* OSPFv3 MIB Virtual Interface Table values: ospfv3VirtIfTable */
#define OSPFv3VIRTIFINDEX 3
#define OSPFv3VIRTIFINSTID 4
#define OSPFv3VIRTIFTRANSITDELAY 5
#define OSPFv3VIRTIFRETRANSINTERVAL 6
#define OSPFv3VIRTIFHELLOINTERVAL 7
#define OSPFv3VIRTIFRTRDEADINTERVAL 8
#define OSPFv3VIRTIFSTATE 9
#define OSPFv3VIRTIFEVENTS 10
#define OSPFv3VIRTIFROWSTATUS 11
#define OSPFv3VIRTIFLINKSCOPELSACOUNT 12
#define OSPFv3VIRTIFLINKLSACKSUMSUM 13
/* OSPFv3 MIB Neighbors Table values: ospfv3NbrTable */
#define OSPFv3NBRADDRESSTYPE 4
#define OSPFv3NBRADDRESS 5
#define OSPFv3NBROPTIONS 6
#define OSPFv3NBRPRIORITY 7
#define OSPFv3NBRSTATE 8
#define OSPFv3NBREVENTS 9
#define OSPFv3NBRLSRETRANSQLEN 10
#define OSPFv3NBRHELLOSUPPRESSED 11
#define OSPFv3NBRIFID 12
#define OSPFv3NBRRESTARTHELPERSTATUS 13
#define OSPFv3NBRRESTARTHELPERAGE 14
#define OSPFv3NBRRESTARTHELPEREXITREASON 15
/* OSPFv3 MIB Configured Neighbors Table values: ospfv3CfgNbrTable */
#define OSPFv3CFGNBRPRIORITY 5
#define OSPFv3CFGNBRROWSTATUS 6
/* OSPFv3 MIB Virtual Neighbors Table values: ospfv3VirtNbrTable */
#define OSPFv3VIRTNBRIFINDEX 3
#define OSPFv3VIRTNBRIFINSTID 4
#define OSPFv3VIRTNBRADDRESSTYPE 5
#define OSPFv3VIRTNBRADDRESS 6
#define OSPFv3VIRTNBROPTIONS 7
#define OSPFv3VIRTNBRSTATE 8
#define OSPFv3VIRTNBREVENTS 9
#define OSPFv3VIRTNBRLSRETRANSQLEN 10
#define OSPFv3VIRTNBRHELLOSUPPRESSED 11
#define OSPFv3VIRTNBRIFID 12
#define OSPFv3VIRTNBRRESTARTHELPERSTATUS 13
#define OSPFv3VIRTNBRRESTARTHELPERAGE 14
#define OSPFv3VIRTNBRRESTARTHELPEREXITREASON 15
/* OSPFv3 MIB Area Aggregate Table values: ospfv3AreaAggregateTable */
#define OSPFv3AREAAGGREGATEROWSTATUS 6
#define OSPFv3AREAAGGREGATEEFFECT 7
#define OSPFv3AREAAGGREGATEROUTETAG 8
/* OSPFv3 MIB Virtual Link Lsdb Table values: ospfv3VirtLinkLsdbTable */
#define OSPFv3VIRTLINKLSDBSEQUENCE 6
#define OSPFv3VIRTLINKLSDBAGE 7
#define OSPFv3VIRTLINKLSDBCHECKSUM 8
#define OSPFv3VIRTLINKLSDBADVERTISEMENT 9
#define OSPFv3VIRTLINKLSDBTYPEKNOWN 10
/* SYNTAX Status from OSPF-MIB. */
#define OSPF_STATUS_ENABLED 1
#define OSPF_STATUS_DISABLED 2
/* SNMP value hack. */
#define COUNTER ASN_COUNTER
#define INTEGER ASN_INTEGER
#define GAUGE ASN_GAUGE
#define UNSIGNED ASN_UNSIGNED
#define TIMETICKS ASN_TIMETICKS
#define IPADDRESS ASN_IPADDRESS
#define STRING ASN_OCTET_STR
/* For return values e.g. SNMP_INTEGER macro */
SNMP_LOCAL_VARIABLES
/* OSPFv3-MIB instances. */
oid ospfv3_oid [] = { OSPFv3MIB };
/* Hook functions. */
static u_char *ospfv3GeneralGroup (struct variable *, oid *, size_t *,
int, size_t *, WriteMethod **);
static u_char *ospfv3AreaEntry (struct variable *, oid *, size_t *,
int, size_t *, WriteMethod **);
static u_char *ospfv3AreaLsdbEntry (struct variable *, oid *, size_t *,
int, size_t *, WriteMethod **);
struct variable ospfv3_variables[] =
{
/* OSPF general variables */
{OSPFv3ROUTERID, UNSIGNED, RWRITE, ospfv3GeneralGroup,
3, {1, 1, 1}},
{OSPFv3ADMINSTAT, INTEGER, RWRITE, ospfv3GeneralGroup,
3, {1, 1, 2}},
{OSPFv3VERSIONNUMBER, INTEGER, RONLY, ospfv3GeneralGroup,
3, {1, 1, 3}},
{OSPFv3AREABDRRTRSTATUS, INTEGER, RONLY, ospfv3GeneralGroup,
3, {1, 1, 4}},
{OSPFv3ASBDRRTRSTATUS, INTEGER, RWRITE, ospfv3GeneralGroup,
3, {1, 1, 5}},
{OSPFv3ASSCOPELSACOUNT, GAUGE, RONLY, ospfv3GeneralGroup,
3, {1, 1, 6}},
{OSPFv3ASSCOPELSACHECKSUMSUM,UNSIGNED, RONLY, ospfv3GeneralGroup,
3, {1, 1, 7}},
{OSPFv3ORIGINATENEWLSAS, COUNTER, RONLY, ospfv3GeneralGroup,
3, {1, 1, 8}},
{OSPFv3RXNEWLSAS, COUNTER, RONLY, ospfv3GeneralGroup,
3, {1, 1, 9}},
{OSPFv3EXTLSACOUNT, GAUGE, RONLY, ospfv3GeneralGroup,
3, {1, 1, 10}},
{OSPFv3EXTAREALSDBLIMIT, INTEGER, RWRITE, ospfv3GeneralGroup,
3, {1, 1, 11}},
{OSPFv3EXITOVERFLOWINTERVAL, UNSIGNED, RWRITE, ospfv3GeneralGroup,
3, {1, 1, 12}},
{OSPFv3DEMANDEXTENSIONS, INTEGER, RWRITE, ospfv3GeneralGroup,
3, {1, 1, 13}},
{OSPFv3REFERENCEBANDWIDTH, UNSIGNED, RWRITE, ospfv3GeneralGroup,
3, {1, 1, 14}},
{OSPFv3RESTARTSUPPORT, INTEGER, RWRITE, ospfv3GeneralGroup,
3, {1, 1, 15}},
{OSPFv3RESTARTINTERVAL, UNSIGNED, RWRITE, ospfv3GeneralGroup,
3, {1, 1, 16}},
{OSPFv3RESTARTSTRICTLSACHECKING, INTEGER, RWRITE, ospfv3GeneralGroup,
3, {1, 1, 17}},
{OSPFv3RESTARTSTATUS, INTEGER, RONLY, ospfv3GeneralGroup,
3, {1, 1, 18}},
{OSPFv3RESTARTAGE, UNSIGNED, RONLY, ospfv3GeneralGroup,
3, {1, 1, 19}},
{OSPFv3RESTARTEXITREASON, INTEGER, RONLY, ospfv3GeneralGroup,
3, {1, 1, 20}},
{OSPFv3NOTIFICATIONENABLE, INTEGER, RWRITE, ospfv3GeneralGroup,
3, {1, 1, 21}},
{OSPFv3STUBROUTERSUPPORT, INTEGER, RONLY, ospfv3GeneralGroup,
3, {1, 1, 22}},
{OSPFv3STUBROUTERADVERTISEMENT, INTEGER, RWRITE, ospfv3GeneralGroup,
3, {1, 1, 23}},
{OSPFv3DISCONTINUITYTIME, TIMETICKS, RONLY, ospfv3GeneralGroup,
3, {1, 1, 24}},
{OSPFv3RESTARTTIME, TIMETICKS, RONLY, ospfv3GeneralGroup,
3, {1, 1, 25}},
/* OSPFv3 Area Data Structure */
{OSPFv3IMPORTASEXTERN, INTEGER, RWRITE, ospfv3AreaEntry,
4, {1, 2, 1, 2}},
{OSPFv3AREASPFRUNS, COUNTER, RONLY, ospfv3AreaEntry,
4, {1, 2, 1, 3}},
{OSPFv3AREABDRRTRCOUNT, GAUGE, RONLY, ospfv3AreaEntry,
4, {1, 2, 1, 4}},
{OSPFv3AREAASBDRRTRCOUNT, GAUGE, RONLY, ospfv3AreaEntry,
4, {1, 2, 1, 5}},
{OSPFv3AREASCOPELSACOUNT, GAUGE, RONLY, ospfv3AreaEntry,
4, {1, 2, 1, 6}},
{OSPFv3AREASCOPELSACKSUMSUM, UNSIGNED, RONLY, ospfv3AreaEntry,
4, {1, 2, 1, 7}},
{OSPFv3AREASUMMARY, INTEGER, RWRITE, ospfv3AreaEntry,
4, {1, 2, 1, 8}},
{OSPFv3AREAROWSTATUS, INTEGER, RWRITE, ospfv3AreaEntry,
4, {1, 2, 1, 9}},
{OSPFv3AREASTUBMETRIC, INTEGER, RWRITE, ospfv3AreaEntry,
4, {1, 2, 1, 10}},
{OSPFv3AREANSSATRANSLATORROLE, INTEGER, RWRITE, ospfv3AreaEntry,
4, {1, 2, 1, 11}},
{OSPFv3AREANSSATRANSLATORSTATE, INTEGER, RONLY, ospfv3AreaEntry,
4, {1, 2, 1, 12}},
{OSPFv3AREANSSATRANSLATORSTABINTERVAL, UNSIGNED, RWRITE, ospfv3AreaEntry,
4, {1, 2, 1, 13}},
{OSPFv3AREANSSATRANSLATOREVENTS, COUNTER, RONLY, ospfv3AreaEntry,
4, {1, 2, 1, 14}},
{OSPFv3AREASTUBMETRICTYPE, INTEGER, RWRITE, ospfv3AreaEntry,
4, {1, 2, 1, 15}},
{OSPFv3AREATEENABLED, INTEGER, RWRITE, ospfv3AreaEntry,
4, {1, 2, 1, 16}},
/* OSPFv3 Area LSDB */
{OSPFv3AREALSDBSEQUENCE, INTEGER, RONLY, ospfv3AreaLsdbEntry,
4, {1, 4, 1, 5}},
{OSPFv3AREALSDBAGE, UNSIGNED, RONLY, ospfv3AreaLsdbEntry,
4, {1, 4, 1, 6}},
{OSPFv3AREALSDBCHECKSUM, INTEGER, RONLY, ospfv3AreaLsdbEntry,
4, {1, 4, 1, 7}},
{OSPFv3AREALSDBADVERTISEMENT, STRING, RONLY, ospfv3AreaLsdbEntry,
4, {1, 4, 1, 8}},
{OSPFv3AREALSDBTYPEKNOWN, INTEGER, RONLY, ospfv3AreaLsdbEntry,
4, {1, 4, 1, 9}},
};
static u_char *
ospfv3GeneralGroup (struct variable *v, oid *name, size_t *length,
int exact, size_t *var_len, WriteMethod **write_method)
{
/* Check whether the instance identifier is valid */
if (smux_header_generic (v, name, length, exact, var_len, write_method)
== MATCH_FAILED)
return NULL;
/* Return the current value of the variable */
switch (v->magic)
{
case OSPFv3ROUTERID:
/* Router-ID of this OSPF instance. */
if (ospf6)
return SNMP_INTEGER (ntohl (ospf6->router_id));
return SNMP_INTEGER (0);
case OSPFv3ADMINSTAT:
case OSPFv3VERSIONNUMBER:
case OSPFv3AREABDRRTRSTATUS:
case OSPFv3ASBDRRTRSTATUS:
case OSPFv3ASSCOPELSACOUNT:
case OSPFv3ASSCOPELSACHECKSUMSUM:
case OSPFv3ORIGINATENEWLSAS:
case OSPFv3RXNEWLSAS:
case OSPFv3EXTLSACOUNT:
case OSPFv3EXTAREALSDBLIMIT:
case OSPFv3EXITOVERFLOWINTERVAL:
case OSPFv3DEMANDEXTENSIONS:
case OSPFv3REFERENCEBANDWIDTH:
case OSPFv3RESTARTSUPPORT:
case OSPFv3RESTARTINTERVAL:
case OSPFv3RESTARTSTRICTLSACHECKING:
case OSPFv3RESTARTSTATUS:
case OSPFv3RESTARTAGE:
case OSPFv3RESTARTEXITREASON:
case OSPFv3NOTIFICATIONENABLE:
case OSPFv3STUBROUTERSUPPORT:
case OSPFv3STUBROUTERADVERTISEMENT:
case OSPFv3DISCONTINUITYTIME:
case OSPFv3RESTARTTIME:
/* TODO: Not implemented */
return NULL;
}
return NULL;
}
static u_char *
ospfv3AreaEntry (struct variable *v, oid *name, size_t *length,
int exact, size_t *var_len, WriteMethod **write_method)
{
struct ospf6_area *oa, *area = NULL;
u_int32_t area_id = 0;
struct listnode *node;
unsigned int len;
char a[16];
if (ospf6 == NULL)
return NULL;
if (smux_header_table(v, name, length, exact, var_len, write_method)
== MATCH_FAILED)
return NULL;
len = *length - v->namelen;
len = (len >= 1 ? sizeof 1 : 0);
if (exact && len != 1)
return NULL;
if (len)
area_id = htonl (name[v->namelen]);
inet_ntop (AF_INET, &area_id, a, sizeof (a));
zlog_debug ("SNMP access by area: %s, exact=%d len=%d length=%lu",
a, exact, len, (u_long)*length);
for (ALL_LIST_ELEMENTS_RO (ospf6->area_list, node, oa))
{
if (area == NULL)
{
if (len == 0) /* return first area entry */
area = oa;
else if (exact && ntohl (oa->area_id) == ntohl (area_id))
area = oa;
else if (ntohl (oa->area_id) > ntohl (area_id))
area = oa;
}
}
if (area == NULL)
return NULL;
*length = v->namelen + 1;
name[v->namelen] = ntohl (area->area_id);
inet_ntop (AF_INET, &area->area_id, a, sizeof (a));
zlog_debug ("SNMP found area: %s, exact=%d len=%d length=%lu",
a, exact, len, (u_long)*length);
switch (v->magic)
{
case OSPFv3IMPORTASEXTERN:
return SNMP_INTEGER (ospf6->external_table->count);
break;
case OSPFv3AREASPFRUNS:
case OSPFv3AREABDRRTRCOUNT:
case OSPFv3AREAASBDRRTRCOUNT:
case OSPFv3AREASCOPELSACOUNT:
case OSPFv3AREASCOPELSACKSUMSUM:
case OSPFv3AREASUMMARY:
case OSPFv3AREAROWSTATUS:
case OSPFv3AREASTUBMETRIC:
case OSPFv3AREANSSATRANSLATORROLE:
case OSPFv3AREANSSATRANSLATORSTATE:
case OSPFv3AREANSSATRANSLATORSTABINTERVAL:
case OSPFv3AREANSSATRANSLATOREVENTS:
case OSPFv3AREASTUBMETRICTYPE:
case OSPFv3AREATEENABLED:
/* Not implemented. */
return NULL;
}
return NULL;
}
static u_char *
ospfv3AreaLsdbEntry (struct variable *v, oid *name, size_t *length,
int exact, size_t *var_len, WriteMethod **write_method)
{
struct ospf6_lsa *lsa = NULL;
u_int32_t area_id, id, adv_router;
u_int16_t type;
int len;
oid *offset;
int offsetlen;
char a[16], b[16], c[16];
struct ospf6_area *oa;
struct listnode *node;
if (smux_header_table(v, name, length, exact, var_len, write_method)
== MATCH_FAILED)
return NULL;
area_id = type = id = adv_router = 0;
/* Check OSPFv3 instance. */
if (ospf6 == NULL)
return NULL;
/* Get variable length. */
offset = name + v->namelen;
offsetlen = *length - v->namelen;
#define OSPFV3_AREA_LSDB_ENTRY_EXACT_OFFSET 4
if (exact && offsetlen != OSPFV3_AREA_LSDB_ENTRY_EXACT_OFFSET)
return NULL;
/* Parse area-id */
len = (offsetlen < 1 ? 0 : 1);
if (len)
area_id = htonl (*offset);
offset += len;
offsetlen -= len;
/* Parse type */
len = (offsetlen < 1 ? 0 : 1);
if (len)
type = htons (*offset);
offset += len;
offsetlen -= len;
/* Parse Router-ID */
len = (offsetlen < 1 ? 0 : 1);
if (len)
adv_router = htonl (*offset);
offset += len;
offsetlen -= len;
/* Parse LS-ID */
len = (offsetlen < 1 ? 0 : 1);
if (len)
id = htonl (*offset);
offset += len;
offsetlen -= len;
inet_ntop (AF_INET, &area_id, a, sizeof (a));
inet_ntop (AF_INET, &adv_router, b, sizeof (b));
inet_ntop (AF_INET, &id, c, sizeof (c));
zlog_debug ("SNMP access by lsdb: area=%s exact=%d length=%lu magic=%d"
" type=%#x adv_router=%s id=%s",
a, exact, (u_long)*length, v->magic, ntohs (type), b, c);
if (exact)
{
oa = ospf6_area_lookup (area_id, ospf6);
lsa = ospf6_lsdb_lookup (type, id, adv_router, oa->lsdb);
}
else
{
for (ALL_LIST_ELEMENTS_RO (ospf6->area_list, node, oa))
{
if (lsa)
continue;
if (oa->area_id < area_id)
continue;
lsa = ospf6_lsdb_lookup_next (type, id, adv_router,
oa->lsdb);
if (! lsa)
{
type = 0;
id = 0;
adv_router = 0;
}
}
}
if (! lsa)
{
zlog_debug ("SNMP respond: No LSA to return");
return NULL;
}
oa = OSPF6_AREA (lsa->lsdb->data);
zlog_debug ("SNMP respond: area: %s lsa: %s", oa->name, lsa->name);
/* Add Index (AreaId, Type, RouterId, Lsid) */
*length = v->namelen + OSPFV3_AREA_LSDB_ENTRY_EXACT_OFFSET;
offset = name + v->namelen;
*offset = ntohl (oa->area_id);
offset++;
*offset = ntohs (lsa->header->type);
offset++;
*offset = ntohl (lsa->header->adv_router);
offset++;
*offset = ntohl (lsa->header->id);
offset++;
/* Return the current value of the variable */
switch (v->magic)
{
case OSPFv3AREALSDBSEQUENCE:
return SNMP_INTEGER (ntohl (lsa->header->seqnum));
break;
case OSPFv3AREALSDBAGE:
ospf6_lsa_age_current (lsa);
return SNMP_INTEGER (ntohs (lsa->header->age));
break;
case OSPFv3AREALSDBCHECKSUM:
return SNMP_INTEGER (ntohs (lsa->header->checksum));
break;
case OSPFv3AREALSDBADVERTISEMENT:
*var_len = ntohs (lsa->header->length);
return (u_char *) lsa->header;
break;
case OSPFv3AREALSDBTYPEKNOWN:
return SNMP_INTEGER (OSPF6_LSA_IS_KNOWN (lsa->header->type) ?
SNMP_TRUE : SNMP_FALSE);
break;
}
return NULL;
}
/* Register OSPFv3-MIB. */
void
ospf6_snmp_init (struct thread_master *master)
{
smux_init (master);
REGISTER_MIB ("OSPFv3MIB", ospfv3_variables, variable, ospfv3_oid);
}
#endif /* HAVE_SNMP */
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