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mirror_frr/ospf6d/ospf6_snmp.c

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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 **);
static u_char *ospfv3NbrEntry (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}},
/* OSPFv3 neighbors */
{OSPFv3NBRADDRESSTYPE, INTEGER, RONLY, ospfv3NbrEntry,
4, {1, 9, 1, 4}},
{OSPFv3NBRADDRESS, STRING, RONLY, ospfv3NbrEntry,
4, {1, 9, 1, 5}},
{OSPFv3NBROPTIONS, INTEGER, RONLY, ospfv3NbrEntry,
4, {1, 9, 1, 6}},
{OSPFv3NBRPRIORITY, INTEGER, RONLY, ospfv3NbrEntry,
4, {1, 9, 1, 7}},
{OSPFv3NBRSTATE, INTEGER, RONLY, ospfv3NbrEntry,
4, {1, 9, 1, 8}},
{OSPFv3NBREVENTS, COUNTER, RONLY, ospfv3NbrEntry,
4, {1, 9, 1, 9}},
{OSPFv3NBRLSRETRANSQLEN, GAUGE, RONLY, ospfv3NbrEntry,
4, {1, 9, 1, 10}},
{OSPFv3NBRHELLOSUPPRESSED, INTEGER, RONLY, ospfv3NbrEntry,
4, {1, 9, 1, 11}},
{OSPFv3NBRIFID, INTEGER, RONLY, ospfv3NbrEntry,
4, {1, 9, 1, 12}},
{OSPFv3NBRRESTARTHELPERSTATUS, INTEGER, RONLY, ospfv3NbrEntry,
4, {1, 9, 1, 13}},
{OSPFv3NBRRESTARTHELPERAGE, UNSIGNED, RONLY, ospfv3NbrEntry,
4, {1, 9, 1, 14}},
{OSPFv3NBRRESTARTHELPEREXITREASON, INTEGER, RONLY, ospfv3NbrEntry,
4, {1, 9, 1, 15}},
};
static u_char *
ospfv3GeneralGroup (struct variable *v, oid *name, size_t *length,
int exact, size_t *var_len, WriteMethod **write_method)
{
u_int16_t sum;
u_int32_t count;
struct ospf6_lsa *lsa = NULL;
/* 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:
if (ospf6)
return SNMP_INTEGER (CHECK_FLAG (ospf6->flag, OSPF6_DISABLED)?
OSPF_STATUS_DISABLED:OSPF_STATUS_ENABLED);
return SNMP_INTEGER (OSPF_STATUS_DISABLED);
case OSPFv3VERSIONNUMBER:
return SNMP_INTEGER (3);
case OSPFv3AREABDRRTRSTATUS:
if (ospf6)
return SNMP_INTEGER (ospf6_is_router_abr (ospf6)?SNMP_TRUE:SNMP_FALSE);
return SNMP_INTEGER (SNMP_FALSE);
case OSPFv3ASBDRRTRSTATUS:
if (ospf6)
return SNMP_INTEGER (ospf6_asbr_is_asbr (ospf6)?SNMP_TRUE:SNMP_FALSE);
return SNMP_INTEGER (SNMP_FALSE);
case OSPFv3ASSCOPELSACOUNT:
if (ospf6)
return SNMP_INTEGER (ospf6->lsdb->count);
return SNMP_INTEGER (0);
case OSPFv3ASSCOPELSACHECKSUMSUM:
if (ospf6)
{
for (sum = 0, lsa = ospf6_lsdb_head (ospf6->lsdb);
lsa;
lsa = ospf6_lsdb_next (lsa))
sum += ntohs (lsa->header->checksum);
return SNMP_INTEGER (sum);
}
return SNMP_INTEGER (0);
case OSPFv3ORIGINATENEWLSAS:
return SNMP_INTEGER (0); /* Don't know where to get this value... */
case OSPFv3RXNEWLSAS:
return SNMP_INTEGER (0); /* Don't know where to get this value... */
case OSPFv3EXTLSACOUNT:
if (ospf6)
{
for (count = 0, lsa = ospf6_lsdb_type_head (htons (OSPF6_LSTYPE_AS_EXTERNAL),
ospf6->lsdb);
lsa;
lsa = ospf6_lsdb_type_next (htons (OSPF6_LSTYPE_AS_EXTERNAL),
lsa))
count += 1;
return SNMP_INTEGER (count);
}
return SNMP_INTEGER (0);
case OSPFv3EXTAREALSDBLIMIT:
return SNMP_INTEGER (-1);
case OSPFv3EXITOVERFLOWINTERVAL:
return SNMP_INTEGER (0); /* Not supported */
case OSPFv3DEMANDEXTENSIONS:
return SNMP_INTEGER (0); /* Not supported */
case OSPFv3REFERENCEBANDWIDTH:
return SNMP_INTEGER (100000);
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;
struct ospf6_lsa *lsa = NULL;
u_int32_t area_id = 0;
u_int32_t count;
u_int16_t sum;
struct listnode *node;
unsigned int len;
char a[16];
struct ospf6_route *ro;
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:
/* No NSSA support */
return SNMP_INTEGER (IS_AREA_STUB(area)?2:1);
case OSPFv3AREASPFRUNS:
return SNMP_INTEGER (area->spf_calculation);
case OSPFv3AREABDRRTRCOUNT:
case OSPFv3AREAASBDRRTRCOUNT:
count = 0;
for (ro = ospf6_route_head (ospf6->brouter_table); ro;
ro = ospf6_route_next (ro))
{
if (ntohl (ro->path.area_id) != ntohl (area->area_id)) continue;
if (v->magic == OSPFv3AREABDRRTRCOUNT &&
CHECK_FLAG (ro->path.router_bits, OSPF6_ROUTER_BIT_B))
count++;
if (v->magic == OSPFv3AREAASBDRRTRCOUNT &&
CHECK_FLAG (ro->path.router_bits, OSPF6_ROUTER_BIT_E))
count++;
}
return SNMP_INTEGER (count);
case OSPFv3AREASCOPELSACOUNT:
return SNMP_INTEGER (area->lsdb->count);
case OSPFv3AREASCOPELSACKSUMSUM:
for (sum = 0, lsa = ospf6_lsdb_head (area->lsdb);
lsa;
lsa = ospf6_lsdb_next (lsa))
sum += ntohs (lsa->header->checksum);
return SNMP_INTEGER (sum);
case OSPFv3AREASUMMARY:
return SNMP_INTEGER (2); /* sendAreaSummary */
case OSPFv3AREAROWSTATUS:
return SNMP_INTEGER (1); /* Active */
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;
}
static int
if_icmp_func (struct interface *ifp1, struct interface *ifp2)
{
return (ifp1->ifindex - ifp2->ifindex);
}
static u_char *
ospfv3NbrEntry (struct variable *v, oid *name, size_t *length,
int exact, size_t *var_len, WriteMethod **write_method)
{
unsigned int ifindex, instid, rtrid;
struct ospf6_interface *oi = NULL;
struct ospf6_neighbor *on = NULL;
struct interface *iif;
struct listnode *i, *j;
struct list *ifslist;
oid *offset;
int offsetlen, len;
if (smux_header_table (v, name, length, exact, var_len, write_method)
== MATCH_FAILED)
return NULL;
ifindex = instid = rtrid = 0;
/* Check OSPFv3 instance. */
if (ospf6 == NULL)
return NULL;
/* Get variable length. */
offset = name + v->namelen;
offsetlen = *length - v->namelen;
if (exact && offsetlen != 3)
return NULL;
/* Parse if index */
len = (offsetlen < 1 ? 0 : 1);
if (len)
ifindex = *offset;
offset += len;
offsetlen -= len;
/* Parse instance ID */
len = (offsetlen < 1 ? 0 : 1);
if (len)
instid = *offset;
offset += len;
offsetlen -= len;
/* Parse router ID */
len = (offsetlen < 1 ? 0 : 1);
if (len)
rtrid = htonl (*offset);
offset += len;
offsetlen -= len;
if (exact)
{
oi = ospf6_interface_lookup_by_ifindex (ifindex);
on = ospf6_neighbor_lookup (rtrid, oi);
if (oi->instance_id != instid) return NULL;
}
else
{
/* We build a sorted list of interfaces */
ifslist = list_new ();
if (!ifslist) return NULL;
ifslist->cmp = (int (*)(void *, void *))if_icmp_func;
for (ALL_LIST_ELEMENTS_RO (iflist, i, iif))
listnode_add_sort (ifslist, iif);
for (ALL_LIST_ELEMENTS_RO (ifslist, i, iif))
{
if (!iif->ifindex) continue;
oi = ospf6_interface_lookup_by_ifindex (iif->ifindex);
if (!oi) continue;
for (ALL_LIST_ELEMENTS_RO (oi->neighbor_list, j, on)) {
if (iif->ifindex > ifindex ||
(iif->ifindex == ifindex &&
(oi->instance_id > instid ||
(oi->instance_id == instid &&
ntohl (on->router_id) > ntohl (rtrid)))))
break;
}
if (on) break;
oi = on = NULL;
}
list_delete_all_node (ifslist);
}
if (!oi || !on) return NULL;
/* Add Index (IfIndex, IfInstId, RtrId) */
*length = v->namelen + 3;
offset = name + v->namelen;
*offset = oi->interface->ifindex;
offset++;
*offset = oi->instance_id;
offset++;
*offset = ntohl (on->router_id);
offset++;
/* Return the current value of the variable */
switch (v->magic)
{
case OSPFv3NBRADDRESSTYPE:
return SNMP_INTEGER (2); /* IPv6 only */
case OSPFv3NBRADDRESS:
*var_len = sizeof (struct in6_addr);
return (u_char *) &on->linklocal_addr;
case OSPFv3NBROPTIONS:
return SNMP_INTEGER (on->options[2]);
case OSPFv3NBRPRIORITY:
return SNMP_INTEGER (on->priority);
case OSPFv3NBRSTATE:
return SNMP_INTEGER (on->state);
case OSPFv3NBREVENTS:
return SNMP_INTEGER (on->state_change);
case OSPFv3NBRLSRETRANSQLEN:
return SNMP_INTEGER (on->retrans_list->count);
case OSPFv3NBRHELLOSUPPRESSED:
return SNMP_INTEGER (SNMP_FALSE);
case OSPFv3NBRIFID:
return SNMP_INTEGER (on->ifindex);
case OSPFv3NBRRESTARTHELPERSTATUS:
case OSPFv3NBRRESTARTHELPERAGE:
case OSPFv3NBRRESTARTHELPEREXITREASON:
/* Not implemented. Only works if all the last ones are not
implemented! */
return NULL;
}
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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