ospf_snmp.c

router source code for the ospdf.

/* OSPFv2 SNMP support
 * Copyright (C) 2000 IP Infusion Inc.
 *
 * Written by Kunihiro Ishiguro <[e-mail]>
 *
 * 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 <asn1.h>
#include <snmp.h>
#include <snmp_impl.h>

#include "if.h"
#include "log.h"
#include "prefix.h"
#include "table.h"
#include "command.h"
#include "memory.h"
#include "smux.h"

#include "ospfd/ospfd.h"
#include "ospfd/ospf_interface.h"
#include "ospfd/ospf_asbr.h"
#include "ospfd/ospf_lsa.h"
#include "ospfd/ospf_lsdb.h"
#include "ospfd/ospf_abr.h"
#include "ospfd/ospf_neighbor.h"
#include "ospfd/ospf_nsm.h"
#include "ospfd/ospf_flood.h"

/* OSPF2-MIB. */
#define OSPF2MIB 1,3,6,1,2,1,14

/* Zebra enterprise OSPF MIB.  This variable is used for register
   OSPF MIB to SNMP agent under SMUX protocol.  */
#define OSPFDOID 1,3,6,1,4,1,3317,1,2,5

/* OSPF MIB General Group values. */
#define OSPFROUTERID                     1
#define OSPFADMINSTAT                    2
#define OSPFVERSIONNUMBER                3
#define OSPFAREABDRRTRSTATUS             4
#define OSPFASBDRRTRSTATUS               5
#define OSPFEXTERNLSACOUNT               6
#define OSPFEXTERNLSACKSUMSUM            7
#define OSPFTOSSUPPORT                   8
#define OSPFORIGINATENEWLSAS             9
#define OSPFRXNEWLSAS                    10
#define OSPFEXTLSDBLIMIT                 11
#define OSPFMULTICASTEXTENSIONS          12
#define OSPFEXITOVERFLOWINTERVAL         13
#define OSPFDEMANDEXTENSIONS             14

/* OSPF MIB ospfAreaTable. */
#define OSPFAREAID                       1
#define OSPFAUTHTYPE                     2
#define OSPFIMPORTASEXTERN               3
#define OSPFSPFRUNS                      4
#define OSPFAREABDRRTRCOUNT              5
#define OSPFASBDRRTRCOUNT                6
#define OSPFAREALSACOUNT                 7
#define OSPFAREALSACKSUMSUM              8
#define OSPFAREASUMMARY                  9
#define OSPFAREASTATUS                   10

/* OSPF MIB ospfStubAreaTable. */
#define OSPFSTUBAREAID                   1
#define OSPFSTUBTOS                      2
#define OSPFSTUBMETRIC                   3
#define OSPFSTUBSTATUS                   4
#define OSPFSTUBMETRICTYPE               5

/* OSPF MIB ospfLsdbTable. */
#define OSPFLSDBAREAID                   1
#define OSPFLSDBTYPE                     2
#define OSPFLSDBLSID                     3
#define OSPFLSDBROUTERID                 4
#define OSPFLSDBSEQUENCE                 5
#define OSPFLSDBAGE                      6
#define OSPFLSDBCHECKSUM                 7
#define OSPFLSDBADVERTISEMENT            8

/* OSPF MIB ospfAreaRangeTable. */
#define OSPFAREARANGEAREAID              1
#define OSPFAREARANGENET                 2
#define OSPFAREARANGEMASK                3
#define OSPFAREARANGESTATUS              4
#define OSPFAREARANGEEFFECT              5

/* OSPF MIB ospfHostTable. */
#define OSPFHOSTIPADDRESS                1
#define OSPFHOSTTOS                      2
#define OSPFHOSTMETRIC                   3
#define OSPFHOSTSTATUS                   4
#define OSPFHOSTAREAID                   5

/* OSPF MIB ospfIfTable. */
#define OSPFIFIPADDRESS                  1
#define OSPFADDRESSLESSIF                2
#define OSPFIFAREAID                     3
#define OSPFIFTYPE                       4
#define OSPFIFADMINSTAT                  5
#define OSPFIFRTRPRIORITY                6
#define OSPFIFTRANSITDELAY               7
#define OSPFIFRETRANSINTERVAL            8
#define OSPFIFHELLOINTERVAL              9
#define OSPFIFRTRDEADINTERVAL            10
#define OSPFIFPOLLINTERVAL               11
#define OSPFIFSTATE                      12
#define OSPFIFDESIGNATEDROUTER           13
#define OSPFIFBACKUPDESIGNATEDROUTER     14
#define OSPFIFEVENTS                     15
#define OSPFIFAUTHKEY                    16
#define OSPFIFSTATUS                     17
#define OSPFIFMULTICASTFORWARDING        18
#define OSPFIFDEMAND                     19
#define OSPFIFAUTHTYPE                   20

/* OSPF MIB ospfIfMetricTable. */
#define OSPFIFMETRICIPADDRESS            1
#define OSPFIFMETRICADDRESSLESSIF        2
#define OSPFIFMETRICTOS                  3
#define OSPFIFMETRICVALUE                4
#define OSPFIFMETRICSTATUS               5

/* OSPF MIB ospfVirtIfTable. */
#define OSPFVIRTIFAREAID                 1
#define OSPFVIRTIFNEIGHBOR               2
#define OSPFVIRTIFTRANSITDELAY           3
#define OSPFVIRTIFRETRANSINTERVAL        4
#define OSPFVIRTIFHELLOINTERVAL          5
#define OSPFVIRTIFRTRDEADINTERVAL        6
#define OSPFVIRTIFSTATE                  7
#define OSPFVIRTIFEVENTS                 8
#define OSPFVIRTIFAUTHKEY                9
#define OSPFVIRTIFSTATUS                 10
#define OSPFVIRTIFAUTHTYPE               11

/* OSPF MIB ospfNbrTable. */
#define OSPFNBRIPADDR                    1
#define OSPFNBRADDRESSLESSINDEX          2
#define OSPFNBRRTRID                     3
#define OSPFNBROPTIONS                   4
#define OSPFNBRPRIORITY                  5
#define OSPFNBRSTATE                     6
#define OSPFNBREVENTS                    7
#define OSPFNBRLSRETRANSQLEN             8
#define OSPFNBMANBRSTATUS                9
#define OSPFNBMANBRPERMANENCE            10
#define OSPFNBRHELLOSUPPRESSED           11

/* OSPF MIB ospfVirtNbrTable. */
#define OSPFVIRTNBRAREA                  1
#define OSPFVIRTNBRRTRID                 2
#define OSPFVIRTNBRIPADDR                3
#define OSPFVIRTNBROPTIONS               4
#define OSPFVIRTNBRSTATE                 5
#define OSPFVIRTNBREVENTS                6
#define OSPFVIRTNBRLSRETRANSQLEN         7
#define OSPFVIRTNBRHELLOSUPPRESSED       8

/* OSPF MIB ospfExtLsdbTable. */
#define OSPFEXTLSDBTYPE                  1
#define OSPFEXTLSDBLSID                  2
#define OSPFEXTLSDBROUTERID              3
#define OSPFEXTLSDBSEQUENCE              4
#define OSPFEXTLSDBAGE                   5
#define OSPFEXTLSDBCHECKSUM              6
#define OSPFEXTLSDBADVERTISEMENT         7

/* OSPF MIB ospfAreaAggregateTable. */
#define OSPFAREAAGGREGATEAREAID          1
#define OSPFAREAAGGREGATELSDBTYPE        2
#define OSPFAREAAGGREGATENET             3
#define OSPFAREAAGGREGATEMASK            4
#define OSPFAREAAGGREGATESTATUS          5
#define OSPFAREAAGGREGATEEFFECT          6

/* 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 TIMETICKS   ASN_TIMETICKS
#define IPADDRESS   ASN_IPADDRESS
#define STRING      ASN_OCTET_STR

/* Declare static local variables for convenience. */
SNMP_LOCAL_VARIABLES

/* OSPF-MIB instances. */
oid ospf_oid [] = { OSPF2MIB };
oid ospfd_oid [] = { OSPFDOID };

/* IP address 0.0.0.0. */
static struct in_addr ospf_empty_addr = {0};

/* Hook functions. */
static u_char *ospfGeneralGroup ();
static u_char *ospfAreaEntry ();
static u_char *ospfStubAreaEntry ();
static u_char *ospfLsdbEntry ();
static u_char *ospfAreaRangeEntry ();
static u_char *ospfHostEntry ();
static u_char *ospfIfEntry ();
static u_char *ospfIfMetricEntry ();
static u_char *ospfVirtIfEntry ();
static u_char *ospfNbrEntry ();
static u_char *ospfVirtNbrEntry ();
static u_char *ospfExtLsdbEntry ();
static u_char *ospfAreaAggregateEntry ();

struct variable ospf_variables[] = 
{
  /* OSPF general variables */
  {OSPFROUTERID,              IPADDRESS, RWRITE, ospfGeneralGroup,
   2, {1, 1}},
  {OSPFADMINSTAT,             INTEGER, RWRITE, ospfGeneralGroup,
   2, {1, 2}},
  {OSPFVERSIONNUMBER,         INTEGER, RONLY, ospfGeneralGroup,
   2, {1, 3}},
  {OSPFAREABDRRTRSTATUS,      INTEGER, RONLY, ospfGeneralGroup,
   2, {1, 4}},
  {OSPFASBDRRTRSTATUS,        INTEGER, RWRITE, ospfGeneralGroup,
   2, {1, 5}},
  {OSPFEXTERNLSACOUNT,        GAUGE, RONLY, ospfGeneralGroup,
   2, {1, 6}},
  {OSPFEXTERNLSACKSUMSUM,     INTEGER, RONLY, ospfGeneralGroup,
   2, {1, 7}},
  {OSPFTOSSUPPORT,            INTEGER, RWRITE, ospfGeneralGroup,
   2, {1, 8}},
  {OSPFORIGINATENEWLSAS,      COUNTER, RONLY, ospfGeneralGroup,
   2, {1, 9}},
  {OSPFRXNEWLSAS,             COUNTER, RONLY, ospfGeneralGroup,
   2, {1, 10}},
  {OSPFEXTLSDBLIMIT,          INTEGER, RWRITE, ospfGeneralGroup,
   2, {1, 11}},
  {OSPFMULTICASTEXTENSIONS,   INTEGER, RWRITE, ospfGeneralGroup,
   2, {1, 12}},
  {OSPFEXITOVERFLOWINTERVAL,  INTEGER, RWRITE, ospfGeneralGroup,
   2, {1, 13}},
  {OSPFDEMANDEXTENSIONS,      INTEGER, RWRITE, ospfGeneralGroup,
   2, {1, 14}},

  /* OSPF area data structure. */
  {OSPFAREAID,                IPADDRESS, RONLY, ospfAreaEntry,
   3, {2, 1, 1}},
  {OSPFAUTHTYPE,              INTEGER, RWRITE, ospfAreaEntry,
   3, {2, 1, 2}},
  {OSPFIMPORTASEXTERN,        INTEGER, RWRITE, ospfAreaEntry,
   3, {2, 1, 3}},
  {OSPFSPFRUNS,               COUNTER, RONLY, ospfAreaEntry,
   3, {2, 1, 4}},
  {OSPFAREABDRRTRCOUNT,       GAUGE, RONLY, ospfAreaEntry,
   3, {2, 1, 5}},
  {OSPFASBDRRTRCOUNT,         GAUGE, RONLY, ospfAreaEntry,
   3, {2, 1, 6}},
  {OSPFAREALSACOUNT,          GAUGE, RONLY, ospfAreaEntry,
   3, {2, 1, 7}},
  {OSPFAREALSACKSUMSUM,       INTEGER, RONLY, ospfAreaEntry,
   3, {2, 1, 8}},
  {OSPFAREASUMMARY,           INTEGER, RWRITE, ospfAreaEntry,
   3, {2, 1, 9}},
  {OSPFAREASTATUS,            INTEGER, RWRITE, ospfAreaEntry,
   3, {2, 1, 10}},

  /* OSPF stub area information. */
  {OSPFSTUBAREAID,            IPADDRESS, RONLY, ospfStubAreaEntry,
   3, {3, 1, 1}},
  {OSPFSTUBTOS,               INTEGER, RONLY, ospfStubAreaEntry,
   3, {3, 1, 2}},
  {OSPFSTUBMETRIC,            INTEGER, RWRITE, ospfStubAreaEntry,
   3, {3, 1, 3}},
  {OSPFSTUBSTATUS,            INTEGER, RWRITE, ospfStubAreaEntry,
   3, {3, 1, 4}},
  {OSPFSTUBMETRICTYPE,        INTEGER, RWRITE, ospfStubAreaEntry,
   3, {3, 1, 5}},

  /* OSPF link state database. */
  {OSPFLSDBAREAID,            IPADDRESS, RONLY, ospfLsdbEntry,
   3, {4, 1, 1}},
  {OSPFLSDBTYPE,              INTEGER, RONLY, ospfLsdbEntry,
   3, {4, 1, 2}},
  {OSPFLSDBLSID,              IPADDRESS, RONLY, ospfLsdbEntry,
   3, {4, 1, 3}},
  {OSPFLSDBROUTERID,          IPADDRESS, RONLY, ospfLsdbEntry,
   3, {4, 1, 4}},
  {OSPFLSDBSEQUENCE,          INTEGER, RONLY, ospfLsdbEntry,
   3, {4, 1, 5}},
  {OSPFLSDBAGE,               INTEGER, RONLY, ospfLsdbEntry,
   3, {4, 1, 6}},
  {OSPFLSDBCHECKSUM,          INTEGER, RONLY, ospfLsdbEntry,
   3, {4, 1, 7}},
  {OSPFLSDBADVERTISEMENT,     STRING, RONLY, ospfLsdbEntry,
   3, {4, 1, 8}},

  /* Area range table. */
  {OSPFAREARANGEAREAID,       IPADDRESS, RONLY, ospfAreaRangeEntry,
   3, {5, 1, 1}},
  {OSPFAREARANGENET,          IPADDRESS, RONLY, ospfAreaRangeEntry,
   3, {5, 1, 2}},
  {OSPFAREARANGEMASK,         IPADDRESS, RWRITE, ospfAreaRangeEntry,
   3, {5, 1, 3}},
  {OSPFAREARANGESTATUS,       INTEGER, RWRITE, ospfAreaRangeEntry,
   3, {5, 1, 4}},
  {OSPFAREARANGEEFFECT,       INTEGER, RWRITE, ospfAreaRangeEntry,
   3, {5, 1, 5}},

  /* OSPF host table. */
  {OSPFHOSTIPADDRESS,         IPADDRESS, RONLY, ospfHostEntry,
   3, {6, 1, 1}},
  {OSPFHOSTTOS,               INTEGER, RONLY, ospfHostEntry,
   3, {6, 1, 2}},
  {OSPFHOSTMETRIC,            INTEGER, RWRITE, ospfHostEntry,
   3, {6, 1, 3}},
  {OSPFHOSTSTATUS,            INTEGER, RWRITE, ospfHostEntry,
   3, {6, 1, 4}},
  {OSPFHOSTAREAID,            IPADDRESS, RONLY, ospfHostEntry,
   3, {6, 1, 5}},

  /* OSPF interface table. */
  {OSPFIFIPADDRESS,           IPADDRESS, RONLY, ospfIfEntry,
   3, {7, 1, 1}},
  {OSPFADDRESSLESSIF,         INTEGER, RONLY, ospfIfEntry,
   3, {7, 1, 2}},
  {OSPFIFAREAID,              IPADDRESS, RWRITE, ospfIfEntry,
   3, {7, 1, 3}},
  {OSPFIFTYPE,                INTEGER, RWRITE, ospfIfEntry,
   3, {7, 1, 4}},
  {OSPFIFADMINSTAT,           INTEGER, RWRITE, ospfIfEntry,
   3, {7, 1, 5}},
  {OSPFIFRTRPRIORITY,         INTEGER, RWRITE, ospfIfEntry,
   3, {7, 1, 6}},
  {OSPFIFTRANSITDELAY,        INTEGER, RWRITE, ospfIfEntry,
   3, {7, 1, 7}},
  {OSPFIFRETRANSINTERVAL,     INTEGER, RWRITE, ospfIfEntry,
   3, {7, 1, 8}},
  {OSPFIFHELLOINTERVAL,       INTEGER, RWRITE, ospfIfEntry,
   3, {7, 1, 9}},
  {OSPFIFRTRDEADINTERVAL,     INTEGER, RWRITE, ospfIfEntry,
   3, {7, 1, 10}},
  {OSPFIFPOLLINTERVAL,        INTEGER, RWRITE, ospfIfEntry,
   3, {7, 1, 11}},
  {OSPFIFSTATE,               INTEGER, RONLY, ospfIfEntry,
   3, {7, 1, 12}},
  {OSPFIFDESIGNATEDROUTER,    IPADDRESS, RONLY, ospfIfEntry,
   3, {7, 1, 13}},
  {OSPFIFBACKUPDESIGNATEDROUTER, IPADDRESS, RONLY, ospfIfEntry,
   3, {7, 1, 14}},
  {OSPFIFEVENTS,              COUNTER, RONLY, ospfIfEntry,
   3, {7, 1, 15}},
  {OSPFIFAUTHKEY,             STRING,  RWRITE, ospfIfEntry,
   3, {7, 1, 16}},
  {OSPFIFSTATUS,              INTEGER, RWRITE, ospfIfEntry,
   3, {7, 1, 17}},
  {OSPFIFMULTICASTFORWARDING, INTEGER, RWRITE, ospfIfEntry,
   3, {7, 1, 18}},
  {OSPFIFDEMAND,              INTEGER, RWRITE, ospfIfEntry,
   3, {7, 1, 19}},
  {OSPFIFAUTHTYPE,            INTEGER, RWRITE, ospfIfEntry,
   3, {7, 1, 20}},

  /* OSPF interface metric table. */
  {OSPFIFMETRICIPADDRESS,     IPADDRESS, RONLY, ospfIfMetricEntry,
   3, {8, 1, 1}},
  {OSPFIFMETRICADDRESSLESSIF, INTEGER, RONLY, ospfIfMetricEntry,
   3, {8, 1, 2}},
  {OSPFIFMETRICTOS,           INTEGER, RONLY, ospfIfMetricEntry,
   3, {8, 1, 3}},
  {OSPFIFMETRICVALUE,         INTEGER, RWRITE, ospfIfMetricEntry,
   3, {8, 1, 4}},
  {OSPFIFMETRICSTATUS,        INTEGER, RWRITE, ospfIfMetricEntry,
   3, {8, 1, 5}},

  /* OSPF virtual interface table. */
  {OSPFVIRTIFAREAID,          IPADDRESS, RONLY, ospfVirtIfEntry,
   3, {9, 1, 1}},
  {OSPFVIRTIFNEIGHBOR,        IPADDRESS, RONLY, ospfVirtIfEntry,
   3, {9, 1, 2}},
  {OSPFVIRTIFTRANSITDELAY,    INTEGER, RWRITE, ospfVirtIfEntry,
   3, {9, 1, 3}},
  {OSPFVIRTIFRETRANSINTERVAL, INTEGER, RWRITE, ospfVirtIfEntry,
   3, {9, 1, 4}},
  {OSPFVIRTIFHELLOINTERVAL,   INTEGER, RWRITE, ospfVirtIfEntry,
   3, {9, 1, 5}},
  {OSPFVIRTIFRTRDEADINTERVAL, INTEGER, RWRITE, ospfVirtIfEntry,
   3, {9, 1, 6}},
  {OSPFVIRTIFSTATE,           INTEGER, RONLY, ospfVirtIfEntry,
   3, {9, 1, 7}},
  {OSPFVIRTIFEVENTS,          COUNTER, RONLY, ospfVirtIfEntry,
   3, {9, 1, 8}},
  {OSPFVIRTIFAUTHKEY,         STRING,  RWRITE, ospfVirtIfEntry,
   3, {9, 1, 9}},
  {OSPFVIRTIFSTATUS,          INTEGER, RWRITE, ospfVirtIfEntry,
   3, {9, 1, 10}},
  {OSPFVIRTIFAUTHTYPE,        INTEGER, RWRITE, ospfVirtIfEntry,
   3, {9, 1, 11}},

  /* OSPF neighbor table. */
  {OSPFNBRIPADDR,             IPADDRESS, RONLY, ospfNbrEntry,
   3, {10, 1, 1}},
  {OSPFNBRADDRESSLESSINDEX,   INTEGER, RONLY, ospfNbrEntry,
   3, {10, 1, 2}},
  {OSPFNBRRTRID,              IPADDRESS, RONLY, ospfNbrEntry,
   3, {10, 1, 3}},
  {OSPFNBROPTIONS,            INTEGER, RONLY, ospfNbrEntry,
   3, {10, 1, 4}},
  {OSPFNBRPRIORITY,           INTEGER, RWRITE, ospfNbrEntry,
   3, {10, 1, 5}},
  {OSPFNBRSTATE,              INTEGER, RONLY, ospfNbrEntry,
   3, {10, 1, 6}},
  {OSPFNBREVENTS,             COUNTER, RONLY, ospfNbrEntry,
   3, {10, 1, 7}},
  {OSPFNBRLSRETRANSQLEN,      GAUGE, RONLY, ospfNbrEntry,
   3, {10, 1, 8}},
  {OSPFNBMANBRSTATUS,         INTEGER, RWRITE, ospfNbrEntry,
   3, {10, 1, 9}},
  {OSPFNBMANBRPERMANENCE,     INTEGER, RONLY, ospfNbrEntry,
   3, {10, 1, 10}},
  {OSPFNBRHELLOSUPPRESSED,    INTEGER, RONLY, ospfNbrEntry,
   3, {10, 1, 11}},

  /* OSPF virtual neighbor table. */
  {OSPFVIRTNBRAREA,           IPADDRESS, RONLY, ospfVirtNbrEntry,
   3, {11, 1, 1}},
  {OSPFVIRTNBRRTRID,          IPADDRESS, RONLY, ospfVirtNbrEntry,
   3, {11, 1, 2}},
  {OSPFVIRTNBRIPADDR,         IPADDRESS, RONLY, ospfVirtNbrEntry,
   3, {11, 1, 3}},
  {OSPFVIRTNBROPTIONS,        INTEGER, RONLY, ospfVirtNbrEntry,
   3, {11, 1, 4}},
  {OSPFVIRTNBRSTATE,          INTEGER, RONLY, ospfVirtNbrEntry,
   3, {11, 1, 5}},
  {OSPFVIRTNBREVENTS,         COUNTER, RONLY, ospfVirtNbrEntry,
   3, {11, 1, 6}},
  {OSPFVIRTNBRLSRETRANSQLEN,  INTEGER, RONLY, ospfVirtNbrEntry,
   3, {11, 1, 7}},
  {OSPFVIRTNBRHELLOSUPPRESSED, INTEGER, RONLY, ospfVirtNbrEntry,
   3, {11, 1, 8}},

  /* OSPF link state database, external. */
  {OSPFEXTLSDBTYPE,           INTEGER, RONLY, ospfExtLsdbEntry,
   3, {12, 1, 1}},
  {OSPFEXTLSDBLSID,           IPADDRESS, RONLY, ospfExtLsdbEntry,
   3, {12, 1, 2}},
  {OSPFEXTLSDBROUTERID,       IPADDRESS, RONLY, ospfExtLsdbEntry,
   3, {12, 1, 3}},
  {OSPFEXTLSDBSEQUENCE,       INTEGER, RONLY, ospfExtLsdbEntry,
   3, {12, 1, 4}},
  {OSPFEXTLSDBAGE,            INTEGER, RONLY, ospfExtLsdbEntry,
   3, {12, 1, 5}},
  {OSPFEXTLSDBCHECKSUM,       INTEGER, RONLY, ospfExtLsdbEntry,
   3, {12, 1, 6}},
  {OSPFEXTLSDBADVERTISEMENT,  STRING,  RONLY, ospfExtLsdbEntry,
   3, {12, 1, 7}},

  /* OSPF area aggregate table. */
  {OSPFAREAAGGREGATEAREAID,   IPADDRESS, RONLY, ospfAreaAggregateEntry, 
   3, {14, 1, 1}},
  {OSPFAREAAGGREGATELSDBTYPE, INTEGER, RONLY, ospfAreaAggregateEntry, 
   3, {14, 1, 2}},
  {OSPFAREAAGGREGATENET,      IPADDRESS, RONLY, ospfAreaAggregateEntry, 
   3, {14, 1, 3}},
  {OSPFAREAAGGREGATEMASK,     IPADDRESS, RONLY, ospfAreaAggregateEntry, 
   3, {14, 1, 4}},
  {OSPFAREAAGGREGATESTATUS,   INTEGER, RWRITE, ospfAreaAggregateEntry,
   3, {14, 1, 5}},
  {OSPFAREAAGGREGATEEFFECT,   INTEGER, RWRITE, ospfAreaAggregateEntry,
   3, {14, 1, 6}}
};

/* The administrative status of OSPF.  When OSPF is enbled on at least
   one interface return 1. */
int
ospf_admin_stat (struct ospf *ospf)
{