snmp_ospf.c
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上传日期:2007-10-30
资源大小:4028k
文件大小:12k
- /*
- * $Id: snmp_ospf.c,v 5.0 2002/04/20 07:30:06 hardaker Exp $
- */
- /*
- * Smux module authored by Rohit Dube.
- */
- #include <net-snmp/net-snmp-config.h>
- #include <stdio.h>
- #if HAVE_STDLIB_H
- #include <stdlib.h>
- #endif
- #if HAVE_STRING_H
- #include <string.h>
- #else
- #include <strings.h>
- #endif
- #if HAVE_UNISTD_H
- #include <unistd.h>
- #endif
- #if HAVE_ERR_H
- #include <err.h>
- #endif
- #if TIME_WITH_SYS_TIME
- # include <sys/time.h>
- # include <time.h>
- #else
- # if HAVE_SYS_TIME_H
- # include <sys/time.h>
- # else
- # include <time.h>
- # endif
- #endif
- #include <errno.h>
- #include <netdb.h>
- #include <sys/stat.h>
- #include <sys/socket.h>
- #if HAVE_SYS_FILIO_H
- #include <sys/filio.h>
- #endif
- #if HAVE_NETINET_IN_H
- #include <netinet/in.h>
- #endif
- #include <net-snmp/net-snmp-includes.h>
- #include <net-snmp/agent/net-snmp-agent-includes.h>
- #include "smux.h"
- #include "snmp_ospf.h"
- static oid max_ospf_mib[] = { 1, 3, 6, 1, 2, 1, 14, 14, 1, 6, 0 };
- static oid min_ospf_mib[] =
- { 1, 3, 6, 1, 2, 1, 14, 1, 1, 0, 0, 0, 0 };
- extern u_char smux_type;
- struct variable13 ospf_variables[] = {
- {ospfRouterId, ASN_IPADDRESS, RWRITE, var_ospf, 3, {1, 1, 1}},
- {ospfAdminStat, ASN_INTEGER, RWRITE, var_ospf, 3, {1, 1, 2}},
- {ospfVersionNumber, ASN_INTEGER, RONLY, var_ospf, 3, {1, 1, 3}},
- {ospfAreaBdrRtrStatus, ASN_INTEGER, RONLY, var_ospf, 3, {1, 1, 4}},
- {ospfASBdrRtrStatus, ASN_INTEGER, RWRITE, var_ospf, 3, {1, 1, 5}},
- {ospfExternLsaCount, ASN_GAUGE, RONLY, var_ospf, 3, {1, 1, 6}},
- {ospfExternLsaCksumSum, ASN_INTEGER, RONLY, var_ospf, 3, {1, 1, 7}},
- {ospfTOSSupport, ASN_INTEGER, RWRITE, var_ospf, 3, {1, 1, 8}},
- {ospfOriginateNewLsas, ASN_COUNTER, RONLY, var_ospf, 3, {1, 1, 9}},
- {ospfRxNewLsas, ASN_COUNTER, RONLY, var_ospf, 3, {1, 1, 10, 0}},
- {ospfExtLsdbLimit, ASN_INTEGER, RWRITE, var_ospf, 3, {1, 1, 11}},
- {ospfMulticastExtensions, ASN_INTEGER, RWRITE, var_ospf, 3,
- {1, 1, 12}},
- {ospfAreaId, ASN_IPADDRESS, RONLY, var_ospf, 3, {2, 1, 1}},
- {ospfAuthType, ASN_INTEGER, RWRITE, var_ospf, 3, {2, 1, 2}},
- {ospfImportAsExtern, ASN_INTEGER, RWRITE, var_ospf, 3, {2, 1, 3}},
- {ospfSpfRuns, ASN_COUNTER, RONLY, var_ospf, 3, {2, 1, 4}},
- {ospfAreaBdrRtrCount, ASN_GAUGE, RONLY, var_ospf, 3, {2, 1, 5}},
- {ospfAsBdrRtrCount, ASN_GAUGE, RONLY, var_ospf, 3, {2, 1, 6}},
- {ospfAreaLsaCount, ASN_GAUGE, RONLY, var_ospf, 3, {2, 1, 7}},
- {ospfAreaLsaCksumSum, ASN_INTEGER, RONLY, var_ospf, 3, {2, 1, 8}},
- {ospfAreaSummary, ASN_INTEGER, RWRITE, var_ospf, 3, {2, 1, 9}},
- {ospfAreaStatus, ASN_INTEGER, RWRITE, var_ospf, 3, {2, 1, 10}},
- {ospfStubAreaId, ASN_IPADDRESS, RONLY, var_ospf, 3, {3, 1, 1}},
- {ospfStubTOS, ASN_INTEGER, RONLY, var_ospf, 3, {3, 1, 2}},
- {ospfStubMetric, ASN_INTEGER, RWRITE, var_ospf, 3, {3, 1, 3}},
- {ospfStubStatus, ASN_INTEGER, RWRITE, var_ospf, 3, {3, 1, 4}},
- {ospfStubMetricType, ASN_INTEGER, RWRITE, var_ospf, 3, {3, 1, 5}},
- {ospfLsdbAreaId, ASN_IPADDRESS, RONLY, var_ospf, 3, {4, 1, 1}},
- {ospfLsdbType, ASN_INTEGER, RONLY, var_ospf, 3, {4, 1, 2}},
- {ospfLsdbLsid, ASN_IPADDRESS, RONLY, var_ospf, 3, {4, 1, 3}},
- {ospfLsdbRouterId, ASN_IPADDRESS, RONLY, var_ospf, 3, {4, 1, 4}},
- {ospfLsdbSequence, ASN_INTEGER, RONLY, var_ospf, 3, {4, 1, 5}},
- {ospfLsdbAge, ASN_INTEGER, RONLY, var_ospf, 3, {4, 1, 6}},
- {ospfLsdbChecksum, ASN_INTEGER, RONLY, var_ospf, 3, {4, 1, 7}},
- {ospfLsdbAdvertisement, ASN_OCTET_STR, RONLY, var_ospf, 3, {4, 1, 8}},
- {ospfAreaRangeAreaId, ASN_IPADDRESS, RONLY, var_ospf, 3, {5, 1, 1}},
- {ospfAreaRangeNet, ASN_IPADDRESS, RONLY, var_ospf, 3, {5, 1, 2}},
- {ospfAreaRangeMask, ASN_IPADDRESS, RWRITE, var_ospf, 3, {5, 1, 3}},
- {ospfAreaRangeStatus, ASN_INTEGER, RWRITE, var_ospf, 3, {5, 1, 4}},
- {ospfAreaRangeEffect, ASN_INTEGER, RWRITE, var_ospf, 3, {5, 1, 5}},
- {ospfHostIpAddress, ASN_IPADDRESS, RONLY, var_ospf, 3, {6, 1, 1}},
- {ospfHostTOS, ASN_INTEGER, RONLY, var_ospf, 3, {6, 1, 2}},
- {ospfHostMetric, ASN_INTEGER, RWRITE, var_ospf, 3, {6, 1, 3}},
- {ospfHostStatus, ASN_INTEGER, RWRITE, var_ospf, 3, {6, 1, 4}},
- {ospfHostAreaID, ASN_IPADDRESS, RONLY, var_ospf, 3, {6, 1, 5}},
- {ospfIfIpAddress, ASN_IPADDRESS, RONLY, var_ospf, 3, {7, 1, 1}},
- {ospfAddressLessIf, ASN_INTEGER, RONLY, var_ospf, 3, {7, 1, 2}},
- {ospfIfAreaId, ASN_IPADDRESS, RWRITE, var_ospf, 3, {7, 1, 3}},
- {ospfIfType, ASN_INTEGER, RWRITE, var_ospf, 3, {7, 1, 4}},
- {ospfIfAdminStat, ASN_INTEGER, RWRITE, var_ospf, 3, {7, 1, 5}},
- {ospfIfRtrPriority, ASN_INTEGER, RWRITE, var_ospf, 3, {7, 1, 6}},
- {ospfIfTransitDelay, ASN_INTEGER, RWRITE, var_ospf, 3, {7, 1, 7}},
- {ospfIfRetransInterval, ASN_INTEGER, RWRITE, var_ospf, 3, {7, 1, 8}},
- {ospfIfHelloInterval, ASN_INTEGER, RWRITE, var_ospf, 3, {7, 1, 9}},
- {ospfIfRtrDeadInterval, ASN_INTEGER, RWRITE, var_ospf, 3, {7, 1, 10}},
- {ospfIfPollInterval, ASN_INTEGER, RWRITE, var_ospf, 3, {7, 1, 11}},
- {ospfIfState, ASN_INTEGER, RONLY, var_ospf, 3, {7, 1, 12}},
- {ospfIfDesignatedRouter, ASN_IPADDRESS, RONLY, var_ospf, 3,
- {7, 1, 13}},
- {ospfIfBackupDesignatedRouter, ASN_IPADDRESS, RONLY, var_ospf, 3,
- {7, 1, 14}},
- {ospfIfEvents, ASN_COUNTER, RONLY, var_ospf, 3, {7, 1, 15}},
- {ospfIfAuthKey, ASN_OCTET_STR, RWRITE, var_ospf, 3, {7, 1, 16}},
- {ospfIfStatus, ASN_INTEGER, RWRITE, var_ospf, 3, {7, 1, 17}},
- {ospfIfMulticastForwarding, ASN_INTEGER, RWRITE, var_ospf, 3,
- {7, 1, 18}},
- {ospfIfMetricIpAddress, ASN_IPADDRESS, RONLY, var_ospf, 3, {8, 1, 1}},
- {ospfIfMetricAddressLessIf, ASN_INTEGER, RONLY, var_ospf, 3,
- {8, 1, 2}},
- {ospfIfMetricTOS, ASN_INTEGER, RONLY, var_ospf, 3, {8, 1, 3}},
- {ospfIfMetricValue, ASN_INTEGER, RWRITE, var_ospf, 3, {8, 1, 4}},
- {ospfIfMetricStatus, ASN_INTEGER, RWRITE, var_ospf, 3, {8, 1, 5}},
- {ospfVirtIfAreaId, ASN_IPADDRESS, RONLY, var_ospf, 3, {9, 1, 1}},
- {ospfVirtIfNeighbor, ASN_IPADDRESS, RONLY, var_ospf, 3, {9, 1, 2}},
- {ospfVirtIfTransitDelay, ASN_INTEGER, RWRITE, var_ospf, 3, {9, 1, 3}},
- {ospfVirtIfRetransInterval, ASN_INTEGER, RWRITE, var_ospf, 3,
- {9, 1, 4}},
- {ospfVirtIfHelloInterval, ASN_INTEGER, RWRITE, var_ospf, 3, {9, 1, 5}},
- {ospfVirtIfRtrDeadInterval, ASN_INTEGER, RWRITE, var_ospf, 3,
- {9, 1, 6}},
- {ospfVirtIfState, ASN_INTEGER, RONLY, var_ospf, 3, {9, 1, 7}},
- {ospfVirtIfEvents, ASN_COUNTER, RONLY, var_ospf, 3, {9, 1, 8}},
- {ospfVirtIfAuthKey, ASN_OCTET_STR, RWRITE, var_ospf, 3, {9, 1, 9}},
- {ospfVirtIfStatus, ASN_INTEGER, RWRITE, var_ospf, 3, {9, 1, 10}},
- {ospfNbrIpAddr, ASN_IPADDRESS, RONLY, var_ospf, 3, {10, 1, 1}},
- {ospfNbrAddressLessIndex, ASN_INTEGER, RONLY, var_ospf, 3, {10, 1, 2}},
- {ospfNbrRtrId, ASN_IPADDRESS, RONLY, var_ospf, 3, {10, 1, 3}},
- {ospfNbrOptions, ASN_INTEGER, RONLY, var_ospf, 3, {10, 1, 4}},
- {ospfNbrPriority, ASN_INTEGER, RWRITE, var_ospf, 3, {10, 1, 5}},
- {ospfNbrState, ASN_INTEGER, RONLY, var_ospf, 3, {10, 1, 6}},
- {ospfNbrEvents, ASN_COUNTER, RONLY, var_ospf, 3, {10, 1, 7}},
- {ospfNbrLsRetransQLen, ASN_GAUGE, RONLY, var_ospf, 3, {10, 1, 8}},
- {ospfNbmaNbrStatus, ASN_INTEGER, RWRITE, var_ospf, 3, {10, 1, 9}},
- {ospfNbmaNbrPermanence, ASN_INTEGER, RWRITE, var_ospf, 3, {10, 1, 10}},
- {ospfVirtNbrArea, ASN_IPADDRESS, RONLY, var_ospf, 3, {11, 1, 1}},
- {ospfVirtNbrRtrId, ASN_IPADDRESS, RONLY, var_ospf, 3, {11, 1, 2}},
- {ospfVirtNbrIpAddr, ASN_IPADDRESS, RONLY, var_ospf, 3, {11, 1, 3}},
- {ospfVirtNbrOptions, ASN_INTEGER, RONLY, var_ospf, 3, {11, 1, 4}},
- {ospfVirtNbrState, ASN_INTEGER, RONLY, var_ospf, 3, {11, 1, 5}},
- {ospfVirtNbrEvents, ASN_COUNTER, RONLY, var_ospf, 3, {11, 1, 6}},
- {ospfVirtNbrLsRetransQLen, ASN_GAUGE, RONLY, var_ospf, 3, {11, 1, 7}},
- {ospfExtLsdbType, ASN_INTEGER, RONLY, var_ospf, 3, {12, 1, 1}},
- {ospfExtLsdbLsid, ASN_IPADDRESS, RONLY, var_ospf, 3, {12, 1, 2}},
- {ospfExtLsdbRouterId, ASN_IPADDRESS, RONLY, var_ospf, 3, {12, 1, 3}},
- {ospfExtLsdbSequence, ASN_INTEGER, RONLY, var_ospf, 3, {12, 1, 4}},
- {ospfExtLsdbAge, ASN_INTEGER, RONLY, var_ospf, 3, {12, 1, 5}},
- {ospfExtLsdbChecksum, ASN_INTEGER, RONLY, var_ospf, 3, {12, 1, 6}},
- {ospfExtLsdbAdvertisement, ASN_OCTET_STR, RONLY, var_ospf, 3,
- {12, 1, 7}},
- {ospfAreaAggregateAreaID, ASN_IPADDRESS, RONLY, var_ospf, 3,
- {14, 1, 1}},
- {ospfAreaAggregateLsdbType, ASN_INTEGER, RONLY, var_ospf, 3,
- {14, 1, 2}},
- {ospfAreaAggregateNet, ASN_IPADDRESS, RONLY, var_ospf, 3, {14, 1, 3}},
- {ospfAreaAggregateMask, ASN_IPADDRESS, RWRITE, var_ospf, 3,
- {14, 1, 4}},
- {ospfAreaAggregateStatus, ASN_INTEGER, RWRITE, var_ospf, 3,
- {14, 1, 5}},
- {ospfAreaAggregateEffect, ASN_INTEGER, RWRITE, var_ospf, 3, {14, 1, 6}}
- };
- oid ospf_variables_oid[] = { MIB, 14 };
- void
- init_snmp_ospf(void)
- {
- REGISTER_MIB("smux/snmp_ospf", ospf_variables, variable13,
- ospf_variables_oid);
- }
- u_char *
- var_ospf(struct variable *vp,
- oid * name,
- int *length, int exact, int *var_len, WriteMethod ** write_method)
- {
- u_char *var;
- int result;
- DEBUGMSGTL(("smux/snmp_ospf",
- "[var_ospf] var len %d, oid requested Len %d-", *var_len,
- *length));
- DEBUGMSGOID(("smux/snmp_ospf", name, *length));
- DEBUGMSG(("smux/snmp_ospf", "n"));
- /*
- * Pass on the request to Gated.
- * If the request sent out was a get next, check to see if
- * it lies in the ospf range. If it doesn't, return NULL.
- * In either case, make sure that errors are checked on the
- * returned packets.
- */
- /*
- * No writes for now
- */
- *write_method = NULL;
- /*
- * Donot allow access to the peer stuff as it crashes gated.
- * However A GetNext on the last 23.3.1.9 variable will force gated into
- * the peer stuff and cause it to crash.
- * The only way to fix this is to either solve the Gated problem, or
- * remove the peer variables from Gated itself and cause it to return
- * NULL at the crossing. Currently doing the later.
- */
- /*
- * Reject GET and GETNEXT for anything above ospfifconf range
- */
- result = snmp_oid_compare(name, *length, max_ospf_mib,
- sizeof(max_ospf_mib) / sizeof(u_int));
- if (result >= 0) {
- DEBUGMSGTL(("smux/snmp_ospf", "Over shotn"));
- return NULL;
- }
- /*
- * for GETs we need to be in the ospf range so reject anything below
- */
- result = snmp_oid_compare(name, *length, min_ospf_mib,
- sizeof(min_ospf_mib) / sizeof(u_int));
- if (exact && (result < 0)) {
- DEBUGMSGTL(("smux/snmp_ospf",
- "Exact but doesn't match length %d, size %dn",
- *length, sizeof(min_ospf_mib)));
- return NULL;
- }
- /*
- * On return, 'var' points to the value returned which is of length
- * '*var_len'. 'name' points to the new (same as the one passed in for
- * GETs) oid which has 'length' suboids.
- * 'smux_type' contains the type of the variable.
- */
- var = smux_snmp_process(exact, name, length, var_len);
- DEBUGMSGTL(("smux/snmp_ospf",
- "[var_ospf] var len %d, oid obtained Len %d-", *var_len,
- *length));
- DEBUGMSGOID(("smux/snmp_ospf", name, *length));
- DEBUGMSG(("smux/snmp_ospf", "n"));
- vp->type = smux_type;
- /*
- * XXX Need a mechanism to return errors in gated's responses
- */
- if (var == NULL)
- return NULL;
- /*
- * Any resullt returned should be within the ospf tree.
- * ospf_mib - static u_int ospf_mib[] = {1, 3, 6, 1, 2, 1, 14};
- */
- if (memcmp(ospf_mib, name, sizeof(ospf_mib)) != 0) {
- return NULL;
- } else {
- return var;
- }
- }