📄 snmp_util.pm
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package SNMP_util;require 5.002;use strict;use vars qw(@ISA @EXPORT $VERSION);use Exporter;use BER "0.58";use SNMP_Session "0.59";use Socket;$VERSION = '0.71';@ISA = qw(Exporter);@EXPORT = qw(snmpget snmpgetnext snmpwalk snmpset snmptrap snmpmapOID snmpMIB_to_OID snmpLoad_OID_Cache snmpQueue_MIB_File);# The OID numbers from RFC1213 (MIB-II) and RFC1315 (Frame Relay)# are pre-loaded below.%SNMP_util::OIDS = ( 'iso' => '1', 'org' => '1.3', 'dod' => '1.3.6', 'internet' => '1.3.6.1', 'directory' => '1.3.6.1.1', 'mgmt' => '1.3.6.1.2', 'mib-2' => '1.3.6.1.2.1', 'system' => '1.3.6.1.2.1.1', 'sysDescr' => '1.3.6.1.2.1.1.1.0', 'sysObjectID' => '1.3.6.1.2.1.1.2', 'sysUpTime' => '1.3.6.1.2.1.1.3.0', 'sysUptime' => '1.3.6.1.2.1.1.3.0', 'sysContact' => '1.3.6.1.2.1.1.4.0', 'sysName' => '1.3.6.1.2.1.1.5.0', 'sysLocation' => '1.3.6.1.2.1.1.6.0', 'sysServices' => '1.3.6.1.2.1.1.7', 'interfaces' => '1.3.6.1.2.1.2', 'ifNumber' => '1.3.6.1.2.1.2.1.0', 'ifTable' => '1.3.6.1.2.1.2.2', 'ifEntry' => '1.3.6.1.2.1.2.2.1', 'ifIndex' => '1.3.6.1.2.1.2.2.1.1', 'ifInOctets' => '1.3.6.1.2.1.2.2.1.10', 'ifInUcastPkts' => '1.3.6.1.2.1.2.2.1.11', 'ifInNUcastPkts' => '1.3.6.1.2.1.2.2.1.12', 'ifInDiscards' => '1.3.6.1.2.1.2.2.1.13', 'ifInErrors' => '1.3.6.1.2.1.2.2.1.14', 'ifInUnknownProtos' => '1.3.6.1.2.1.2.2.1.15', 'ifOutOctets' => '1.3.6.1.2.1.2.2.1.16', 'ifOutUcastPkts' => '1.3.6.1.2.1.2.2.1.17', 'ifOutNUcastPkts' => '1.3.6.1.2.1.2.2.1.18', 'ifOutDiscards' => '1.3.6.1.2.1.2.2.1.19', 'ifDescr' => '1.3.6.1.2.1.2.2.1.2', 'ifOutErrors' => '1.3.6.1.2.1.2.2.1.20', 'ifOutQLen' => '1.3.6.1.2.1.2.2.1.21', 'ifSpecific' => '1.3.6.1.2.1.2.2.1.22', 'ifType' => '1.3.6.1.2.1.2.2.1.3', 'ifMtu' => '1.3.6.1.2.1.2.2.1.4', 'ifSpeed' => '1.3.6.1.2.1.2.2.1.5', 'ifPhysAddress' => '1.3.6.1.2.1.2.2.1.6', 'ifAdminHack' => '1.3.6.1.2.1.2.2.1.7', 'ifAdminStatus' => '1.3.6.1.2.1.2.2.1.7', 'ifOperHack' => '1.3.6.1.2.1.2.2.1.8', 'ifOperStatus' => '1.3.6.1.2.1.2.2.1.8', 'ifLastChange' => '1.3.6.1.2.1.2.2.1.9', 'applIndex' => '1.3.6.1.2.1.27.1.1.1.1', 'at' => '1.3.6.1.2.1.3', 'atTable' => '1.3.6.1.2.1.3.1', 'atEntry' => '1.3.6.1.2.1.3.1.1', 'atIfIndex' => '1.3.6.1.2.1.3.1.1.1', 'atPhysAddress' => '1.3.6.1.2.1.3.1.1.2', 'atNetAddress' => '1.3.6.1.2.1.3.1.1.3', 'ip' => '1.3.6.1.2.1.4', 'ipForwarding' => '1.3.6.1.2.1.4.1', 'ipOutRequests' => '1.3.6.1.2.1.4.10', 'ipOutDiscards' => '1.3.6.1.2.1.4.11', 'ipOutNoRoutes' => '1.3.6.1.2.1.4.12', 'ipReasmTimeout' => '1.3.6.1.2.1.4.13', 'ipReasmReqds' => '1.3.6.1.2.1.4.14', 'ipReasmOKs' => '1.3.6.1.2.1.4.15', 'ipReasmFails' => '1.3.6.1.2.1.4.16', 'ipFragOKs' => '1.3.6.1.2.1.4.17', 'ipFragFails' => '1.3.6.1.2.1.4.18', 'ipFragCreates' => '1.3.6.1.2.1.4.19', 'ipDefaultTTL' => '1.3.6.1.2.1.4.2', 'ipAddrTable' => '1.3.6.1.2.1.4.20', 'ipAddrEntry' => '1.3.6.1.2.1.4.20.1', 'ipAdEntAddr' => '1.3.6.1.2.1.4.20.1.1', 'ipAdEntIfIndex' => '1.3.6.1.2.1.4.20.1.2', 'ipAdEntNetMask' => '1.3.6.1.2.1.4.20.1.3', 'ipAdEntBcastAddr' => '1.3.6.1.2.1.4.20.1.4', 'ipAdEntReasmMaxSize' => '1.3.6.1.2.1.4.20.1.5', 'ipRouteTable' => '1.3.6.1.2.1.4.21', 'ipRouteEntry' => '1.3.6.1.2.1.4.21.1', 'ipRouteDest' => '1.3.6.1.2.1.4.21.1.1', 'ipRouteAge' => '1.3.6.1.2.1.4.21.1.10', 'ipRouteMask' => '1.3.6.1.2.1.4.21.1.11', 'ipRouteMetric5' => '1.3.6.1.2.1.4.21.1.12', 'ipRouteInfo' => '1.3.6.1.2.1.4.21.1.13', 'ipRouteIfIndex' => '1.3.6.1.2.1.4.21.1.2', 'ipRouteMetric1' => '1.3.6.1.2.1.4.21.1.3', 'ipRouteMetric2' => '1.3.6.1.2.1.4.21.1.4', 'ipRouteMetric3' => '1.3.6.1.2.1.4.21.1.5', 'ipRouteMetric4' => '1.3.6.1.2.1.4.21.1.6', 'ipRouteNextHop' => '1.3.6.1.2.1.4.21.1.7', 'ipRouteType' => '1.3.6.1.2.1.4.21.1.8', 'ipRouteProto' => '1.3.6.1.2.1.4.21.1.9', 'ipNetToMediaTable' => '1.3.6.1.2.1.4.22', 'ipNetToMediaEntry' => '1.3.6.1.2.1.4.22.1', 'ipNetToMediaIfIndex' => '1.3.6.1.2.1.4.22.1.1', 'ipNetToMediaPhysAddress' => '1.3.6.1.2.1.4.22.1.2', 'ipNetToMediaNetAddress' => '1.3.6.1.2.1.4.22.1.3', 'ipNetToMediaType' => '1.3.6.1.2.1.4.22.1.4', 'ipRoutingDiscards' => '1.3.6.1.2.1.4.23', 'ipInReceives' => '1.3.6.1.2.1.4.3', 'ipInHdrErrors' => '1.3.6.1.2.1.4.4', 'ipInAddrErrors' => '1.3.6.1.2.1.4.5', 'ipForwDatagrams' => '1.3.6.1.2.1.4.6', 'ipInUnknownProtos' => '1.3.6.1.2.1.4.7', 'ipInDiscards' => '1.3.6.1.2.1.4.8', 'ipInDelivers' => '1.3.6.1.2.1.4.9', 'icmp' => '1.3.6.1.2.1.5', 'icmpInMsgs' => '1.3.6.1.2.1.5.1', 'icmpInTimestamps' => '1.3.6.1.2.1.5.10', 'icmpInTimestampReps' => '1.3.6.1.2.1.5.11', 'icmpInAddrMasks' => '1.3.6.1.2.1.5.12', 'icmpInAddrMaskReps' => '1.3.6.1.2.1.5.13', 'icmpOutMsgs' => '1.3.6.1.2.1.5.14', 'icmpOutErrors' => '1.3.6.1.2.1.5.15', 'icmpOutDestUnreachs' => '1.3.6.1.2.1.5.16', 'icmpOutTimeExcds' => '1.3.6.1.2.1.5.17', 'icmpOutParmProbs' => '1.3.6.1.2.1.5.18', 'icmpOutSrcQuenchs' => '1.3.6.1.2.1.5.19', 'icmpInErrors' => '1.3.6.1.2.1.5.2', 'icmpOutRedirects' => '1.3.6.1.2.1.5.20', 'icmpOutEchos' => '1.3.6.1.2.1.5.21', 'icmpOutEchoReps' => '1.3.6.1.2.1.5.22', 'icmpOutTimestamps' => '1.3.6.1.2.1.5.23', 'icmpOutTimestampReps' => '1.3.6.1.2.1.5.24', 'icmpOutAddrMasks' => '1.3.6.1.2.1.5.25', 'icmpOutAddrMaskReps' => '1.3.6.1.2.1.5.26', 'icmpInDestUnreachs' => '1.3.6.1.2.1.5.3', 'icmpInTimeExcds' => '1.3.6.1.2.1.5.4', 'icmpInParmProbs' => '1.3.6.1.2.1.5.5', 'icmpInSrcQuenchs' => '1.3.6.1.2.1.5.6', 'icmpInRedirects' => '1.3.6.1.2.1.5.7', 'icmpInEchos' => '1.3.6.1.2.1.5.8', 'icmpInEchoReps' => '1.3.6.1.2.1.5.9', 'tcp' => '1.3.6.1.2.1.6', 'tcpRtoAlgorithm' => '1.3.6.1.2.1.6.1', 'tcpInSegs' => '1.3.6.1.2.1.6.10', 'tcpOutSegs' => '1.3.6.1.2.1.6.11', 'tcpRetransSegs' => '1.3.6.1.2.1.6.12', 'tcpConnTable' => '1.3.6.1.2.1.6.13', 'tcpConnEntry' => '1.3.6.1.2.1.6.13.1', 'tcpConnState' => '1.3.6.1.2.1.6.13.1.1', 'tcpConnLocalAddress' => '1.3.6.1.2.1.6.13.1.2', 'tcpConnLocalPort' => '1.3.6.1.2.1.6.13.1.3', 'tcpConnRemAddress' => '1.3.6.1.2.1.6.13.1.4', 'tcpConnRemPort' => '1.3.6.1.2.1.6.13.1.5', 'tcpInErrs' => '1.3.6.1.2.1.6.14', 'tcpOutRsts' => '1.3.6.1.2.1.6.15', 'tcpRtoMin' => '1.3.6.1.2.1.6.2', 'tcpRtoMax' => '1.3.6.1.2.1.6.3', 'tcpMaxConn' => '1.3.6.1.2.1.6.4', 'tcpActiveOpens' => '1.3.6.1.2.1.6.5', 'tcpPassiveOpens' => '1.3.6.1.2.1.6.6', 'tcpAttemptFails' => '1.3.6.1.2.1.6.7', 'tcpEstabResets' => '1.3.6.1.2.1.6.8', 'tcpCurrEstab' => '1.3.6.1.2.1.6.9', 'udp' => '1.3.6.1.2.1.7', 'udpInDatagrams' => '1.3.6.1.2.1.7.1', 'udpNoPorts' => '1.3.6.1.2.1.7.2', 'udpInErrors' => '1.3.6.1.2.1.7.3', 'udpOutDatagrams' => '1.3.6.1.2.1.7.4', 'udpTable' => '1.3.6.1.2.1.7.5', 'udpEntry' => '1.3.6.1.2.1.7.5.1', 'udpLocalAddress' => '1.3.6.1.2.1.7.5.1.1', 'udpLocalPort' => '1.3.6.1.2.1.7.5.1.2', 'egp' => '1.3.6.1.2.1.8', 'egpInMsgs' => '1.3.6.1.2.1.8.1', 'egpInErrors' => '1.3.6.1.2.1.8.2', 'egpOutMsgs' => '1.3.6.1.2.1.8.3', 'egpOutErrors' => '1.3.6.1.2.1.8.4', 'egpNeighTable' => '1.3.6.1.2.1.8.5', 'egpNeighEntry' => '1.3.6.1.2.1.8.5.1', 'egpNeighState' => '1.3.6.1.2.1.8.5.1.1', 'egpNeighStateUps' => '1.3.6.1.2.1.8.5.1.10', 'egpNeighStateDowns' => '1.3.6.1.2.1.8.5.1.11', 'egpNeighIntervalHello' => '1.3.6.1.2.1.8.5.1.12', 'egpNeighIntervalPoll' => '1.3.6.1.2.1.8.5.1.13', 'egpNeighMode' => '1.3.6.1.2.1.8.5.1.14', 'egpNeighEventTrigger' => '1.3.6.1.2.1.8.5.1.15', 'egpNeighAddr' => '1.3.6.1.2.1.8.5.1.2', 'egpNeighAs' => '1.3.6.1.2.1.8.5.1.3', 'egpNeighInMsgs' => '1.3.6.1.2.1.8.5.1.4', 'egpNeighInErrs' => '1.3.6.1.2.1.8.5.1.5', 'egpNeighOutMsgs' => '1.3.6.1.2.1.8.5.1.6', 'egpNeighOutErrs' => '1.3.6.1.2.1.8.5.1.7', 'egpNeighInErrMsgs' => '1.3.6.1.2.1.8.5.1.8', 'egpNeighOutErrMsgs' => '1.3.6.1.2.1.8.5.1.9', 'egpAs' => '1.3.6.1.2.1.8.6', 'transmission' => '1.3.6.1.2.1.10', 'frame-relay' => '1.3.6.1.2.1.10.32', 'frDlcmiTable' => '1.3.6.1.2.1.10.32.1', 'frDlcmiEntry' => '1.3.6.1.2.1.10.32.1.1', 'frDlcmiIfIndex' => '1.3.6.1.2.1.10.32.1.1.1', 'frDlcmiState' => '1.3.6.1.2.1.10.32.1.1.2', 'frDlcmiAddress' => '1.3.6.1.2.1.10.32.1.1.3', 'frDlcmiAddressLen' => '1.3.6.1.2.1.10.32.1.1.4', 'frDlcmiPollingInterval' => '1.3.6.1.2.1.10.32.1.1.5', 'frDlcmiFullEnquiryInterval' => '1.3.6.1.2.1.10.32.1.1.6', 'frDlcmiErrorThreshold' => '1.3.6.1.2.1.10.32.1.1.7', 'frDlcmiMonitoredEvents' => '1.3.6.1.2.1.10.32.1.1.8', 'frDlcmiMaxSupportedVCs' => '1.3.6.1.2.1.10.32.1.1.9', 'frDlcmiMulticast' => '1.3.6.1.2.1.10.32.1.1.10', 'frCircuitTable' => '1.3.6.1.2.1.10.32.2', 'frCircuitEntry' => '1.3.6.1.2.1.10.32.2.1', 'frCircuitIfIndex' => '1.3.6.1.2.1.10.32.2.1.1', 'frCircuitDlci' => '1.3.6.1.2.1.10.32.2.1.2', 'frCircuitState' => '1.3.6.1.2.1.10.32.2.1.3', 'frCircuitReceivedFECNs' => '1.3.6.1.2.1.10.32.2.1.4', 'frCircuitReceivedBECNs' => '1.3.6.1.2.1.10.32.2.1.5', 'frCircuitSentFrames' => '1.3.6.1.2.1.10.32.2.1.6', 'frCircuitSentOctets' => '1.3.6.1.2.1.10.32.2.1.7', 'frOutOctets' => '1.3.6.1.2.1.10.32.2.1.7', 'frCircuitReceivedFrames' => '1.3.6.1.2.1.10.32.2.1.8', 'frCircuitReceivedOctets' => '1.3.6.1.2.1.10.32.2.1.9', 'frInOctets' => '1.3.6.1.2.1.10.32.2.1.9', 'frCircuitCreationTime' => '1.3.6.1.2.1.10.32.2.1.10', 'frCircuitLastTimeChange' => '1.3.6.1.2.1.10.32.2.1.11', 'frCircuitCommittedBurst' => '1.3.6.1.2.1.10.32.2.1.12', 'frCircuitExcessBurst' => '1.3.6.1.2.1.10.32.2.1.13', 'frCircuitThroughput' => '1.3.6.1.2.1.10.32.2.1.14', 'frErrTable' => '1.3.6.1.2.1.10.32.3', 'frErrEntry' => '1.3.6.1.2.1.10.32.3.1', 'frErrIfIndex' => '1.3.6.1.2.1.10.32.3.1.1', 'frErrType' => '1.3.6.1.2.1.10.32.3.1.2', 'frErrData' => '1.3.6.1.2.1.10.32.3.1.3', 'frErrTime' => '1.3.6.1.2.1.10.32.3.1.4', 'frame-relay-globals' => '1.3.6.1.2.1.10.32.4', 'frTrapState' => '1.3.6.1.2.1.10.32.4.1', 'snmp' => '1.3.6.1.2.1.11', 'snmpInPkts' => '1.3.6.1.2.1.11.1', 'snmpInBadValues' => '1.3.6.1.2.1.11.10', 'snmpInReadOnlys' => '1.3.6.1.2.1.11.11', 'snmpInGenErrs' => '1.3.6.1.2.1.11.12', 'snmpInTotalReqVars' => '1.3.6.1.2.1.11.13', 'snmpInTotalSetVars' => '1.3.6.1.2.1.11.14', 'snmpInGetRequests' => '1.3.6.1.2.1.11.15', 'snmpInGetNexts' => '1.3.6.1.2.1.11.16', 'snmpInSetRequests' => '1.3.6.1.2.1.11.17', 'snmpInGetResponses' => '1.3.6.1.2.1.11.18', 'snmpInTraps' => '1.3.6.1.2.1.11.19', 'snmpOutPkts' => '1.3.6.1.2.1.11.2', 'snmpOutTooBigs' => '1.3.6.1.2.1.11.20', 'snmpOutNoSuchNames' => '1.3.6.1.2.1.11.21', 'snmpOutBadValues' => '1.3.6.1.2.1.11.22', 'snmpOutGenErrs' => '1.3.6.1.2.1.11.24', 'snmpOutGetRequests' => '1.3.6.1.2.1.11.25', 'snmpOutGetNexts' => '1.3.6.1.2.1.11.26', 'snmpOutSetRequests' => '1.3.6.1.2.1.11.27', 'snmpOutGetResponses' => '1.3.6.1.2.1.11.28', 'snmpOutTraps' => '1.3.6.1.2.1.11.29', 'snmpInBadVersions' => '1.3.6.1.2.1.11.3', 'snmpEnableAuthenTraps' => '1.3.6.1.2.1.11.30', 'snmpInBadCommunityNames' => '1.3.6.1.2.1.11.4', 'snmpInBadCommunityUses' => '1.3.6.1.2.1.11.5', 'snmpInASNParseErrs' => '1.3.6.1.2.1.11.6', 'snmpInTooBigs' => '1.3.6.1.2.1.11.8', 'snmpInNoSuchNames' => '1.3.6.1.2.1.11.9', 'experimental' => '1.3.6.1.3', 'private' => '1.3.6.1.4', 'enterprises' => '1.3.6.1.4.1', );my $agent_start_time = time;undef $SNMP_util::Host;undef $SNMP_util::Session;$SNMP_util::Debug = 0;$SNMP_util::CacheFile = "OID_cache.txt";$SNMP_util::CacheLoaded = 0;srand(time|$$);### Prototypessub snmpget (@);sub snmpgetnext (@);sub snmpopen (@);sub snmpwalk (@);sub snmpset (@);sub snmptrap (@);sub toOID (@);sub snmpmapOID (@);sub snmpMIB_to_OID ($);sub encode_oid_with_errmsg ($);sub Check_OID ($);sub snmpLoad_OID_Cache ($);sub snmpQueue_MIB_File (@);sub version () { $VERSION; }## Start an snmp session#sub snmpopen (@) { my($host) = @_; my($nhost, $port, $community); my($timeout, $retries, $backoff); $community = "public"; $port = 161; ($community, $host) = ($1, $2) if ($host =~ /^(.*)@([^@]+)$/); ($host, $port, $timeout, $retries, $backoff) = split(':', $host, 5) if ($host =~ /:/); $port = 161 if (defined($port) && (length($port) <= 0)); $nhost = "$community\@$host:$port"; if ((!defined($SNMP_util::Session)) || ($SNMP_util::Host ne $nhost)) { if (defined($SNMP_util::Session)) { $SNMP_util::Session->close(); undef $SNMP_util::Session; undef $SNMP_util::Host; } $SNMP_util::Session = SNMP_Session->open($host, $community, $port); $SNMP_util::Host = $nhost if defined($SNMP_util::Session); } if (defined($SNMP_util::Session)) { $SNMP_util::Session->set_timeout($timeout) if (defined($timeout) && (length($timeout) > 0)); $SNMP_util::Session->set_retries($retries) if (defined($retries) && (length($retries) > 0)); $SNMP_util::Session->set_backoff($backoff) if (defined($backoff) && (length($backoff) > 0)); } return $SNMP_util::Session;}## A restricted snmpget.#sub snmpget (@) { my($host, @vars) = @_; my(@enoid, $var, $response, $bindings, $binding, $value, $oid, @retvals); my $session; $session = &snmpopen($host); if (!defined($session)) { warn "SNMPGET Problem for $host\n" unless ($SNMP_Session::suppress_warnings > 1); return undef; } @enoid = &toOID(@vars); return undef unless defined $enoid[0]; if ($session->get_request_response(@enoid)) { $response = $session->pdu_buffer; ($bindings) = $session->decode_get_response($response); while ($bindings) { ($binding, $bindings) = decode_sequence($bindings); ($oid, $value) = decode_by_template($binding, "%O%@"); my $tempo = pretty_print($value); push @retvals, $tempo; } return(@retvals); } $var = join(' ', @vars); warn "SNMPGET Problem for $var on $host\n" unless ($SNMP_Session::suppress_warnings > 1); return undef;}## A restricted snmpgetnext.#sub snmpgetnext (@) { my($host, @vars) = @_; my(@enoid, $var, $response, $bindings, $binding); my($value, $upoid, $oid, @retvals); my($noid, $ok); my $session; $session = &snmpopen($host); if (!defined($session)) { warn "SNMPGETNEXT Problem for $host\n" unless ($SNMP_Session::suppress_warnings > 1); return undef; } @enoid = &toOID(@vars); undef @vars; undef @retvals; foreach $noid (@enoid) { $upoid = pretty_print($noid); push(@vars, $upoid); } if ($session->getnext_request_response(@enoid)) { $response = $session->pdu_buffer; ($bindings) = $session->decode_get_response($response); while ($bindings) { ($binding, $bindings) = decode_sequence($bindings); ($oid, $value) = decode_by_template($binding, "%O%@"); $ok = 0; my $tempo = pretty_print($oid); foreach $noid (@vars) { if ($tempo =~ /^$noid\./) { $ok = 1; $upoid = $noid; last; } } if ($ok) { my $tempv = pretty_print($value);########################################################################## Don't remove the OID prefix because there could be multiple#### OID's specified in the 'getnext' call!######## $tempo=~s/^$upoid\.//;################################################################## push @retvals, "$tempo:$tempv"; } } return (@retvals); } else { $var = join(' ', @vars); warn "SNMPGETNEXT Problem for $var on $host\n" unless ($SNMP_Session::suppress_warnings > 1); return undef; }}## A restricted snmpwalk.#sub snmpwalk (@) { my($host, @vars) = @_; my(@enoid, $var, $response, $bindings, $binding); my($value, $upoid, $oid, @retvals); my($got, @nnoid, $noid, $ok); my $session; $session = &snmpopen($host); if (!defined($session)) { warn "SNMPWALK Problem for $host\n" unless ($SNMP_Session::suppress_warnings > 1); return undef; } @enoid = toOID(@vars); $got = 0; @nnoid = @enoid; undef @vars; foreach $noid (@enoid) { $upoid = pretty_print($noid); push(@vars, $upoid); } while($session->getnext_request_response(@nnoid)) { $got = 1; $response = $session->pdu_buffer; ($bindings) = $session->decode_get_response($response); undef @nnoid; while ($bindings) {⌨️ 快捷键说明
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