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| Dir : //lib64/mrtg2/SNMP_util.pm |
### - *- mode: Perl -*-
######################################################################
### SNMP_util -- SNMP utilities using SNMP_Session.pm and BER.pm
######################################################################
### Copyright (c) 1998-2010, Mike Mitchell.
###
### This program is free software; you can redistribute it under the
### "Artistic License 2.0" included in this distribution
### (file "Artistic").
######################################################################
### Created by: Mike Mitchell <Mike.Mitchell@sas.com>
###
### Contributions and fixes by:
###
### Tobias Oetiker <tobi@oetiker.ch>: Basic layout
### Simon Leinen <simon@switch.ch>: SNMP_session.pm/BER.pm
### Jeff Allen <jeff.allen@acm.org>: length() of undefined value
### Johannes Demel <demel@zid.tuwien.ac.at>: MIB file parse problem
### Simon Leinen <simon@switch.ch>: more OIDs from Interface MIB
### Jacques Supcik <supcik@ip-plus.net>: Specify local IP, port
### Tobias Oetiker <tobi@oetiker.ch>: HASH as first OID to set SNMP options
### Simon Leinen <simon@switch.ch>: 'undefined port' bug
### Daniel McDonald <dmcdonald@digicontech.com>: request for getbulk support
### Laurent Girod <it.fb@net2000.ch>: code for snmpwalkhash
### Ian Duplisse <i.duplisse@cablelabs.com>: MIB parsing suggestions
### Jakob Ilves <jakob.ilves@oracle.com>: return_array_refs for snmpwalk()
### Valerio Bontempi <v.bontempi@inwind.it>: IPv6 support
### Lorenzo Colitti <lorenzo@colitti.com>: IPv6 support
### Joerg Kummer <JOERG.KUMMER@Roche.COM>: TimeTicks support in snmpset()
### Christopher J. Tengi <tengi@CS.Princeton.EDU>: Gauge32 support in snmpset()
### Nicolai Petri <nicolai@catpipe.net>: hashref passing for snmpwalkhash()
### <jaccobs@online.nl>: parse NOTIFICATION-TYPE in MIB
### Dan Thorson <Dan.Thorson@seagate.com>: handle quotes in MIB comments better
######################################################################
package SNMP_util;
require 5.004;
use strict;
use vars qw(@ISA @EXPORT $VERSION);
use Exporter;
use Carp;
use BER "1.02";
use SNMP_Session "1.00";
use Socket;
$VERSION = '1.15';
@ISA = qw(Exporter);
@EXPORT = qw(snmpget snmpgetnext snmpwalk snmpset snmptrap snmpgetbulk snmpmaptable snmpmaptable4 snmpwalkhash 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' => '1.3.6.1.2.1.1.2.0',
'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' => '1.3.6.1.2.1.1.7.0',
'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',
'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',
'ifName' => '1.3.6.1.2.1.31.1.1.1.1',
'ifInMulticastPkts' => '1.3.6.1.2.1.31.1.1.1.2',
'ifInBroadcastPkts' => '1.3.6.1.2.1.31.1.1.1.3',
'ifOutMulticastPkts' => '1.3.6.1.2.1.31.1.1.1.4',
'ifOutBroadcastPkts' => '1.3.6.1.2.1.31.1.1.1.5',
'ifHCInOctets' => '1.3.6.1.2.1.31.1.1.1.6',
'ifHCInUcastPkts' => '1.3.6.1.2.1.31.1.1.1.7',
'ifHCInMulticastPkts' => '1.3.6.1.2.1.31.1.1.1.8',
'ifHCInBroadcastPkts' => '1.3.6.1.2.1.31.1.1.1.9',
'ifHCOutOctets' => '1.3.6.1.2.1.31.1.1.1.10',
'ifHCOutUcastPkts' => '1.3.6.1.2.1.31.1.1.1.11',
'ifHCOutMulticastPkts' => '1.3.6.1.2.1.31.1.1.1.12',
'ifHCOutBroadcastPkts' => '1.3.6.1.2.1.31.1.1.1.13',
'ifLinkUpDownTrapEnable' => '1.3.6.1.2.1.31.1.1.1.14',
'ifHighSpeed' => '1.3.6.1.2.1.31.1.1.1.15',
'ifPromiscuousMode' => '1.3.6.1.2.1.31.1.1.1.16',
'ifConnectorPresent' => '1.3.6.1.2.1.31.1.1.1.17',
'ifAlias' => '1.3.6.1.2.1.31.1.1.1.18',
'ifCounterDiscontinuityTime' => '1.3.6.1.2.1.31.1.1.1.19',
'experimental' => '1.3.6.1.3',
'private' => '1.3.6.1.4',
'enterprises' => '1.3.6.1.4.1',
);
# GIL
my %revOIDS = (); # Reversed %SNMP_util::OIDS hash
my $RevNeeded = 1;
my $agent_start_time = time;
undef $SNMP_util::Host;
undef $SNMP_util::Session;
undef $SNMP_util::Version;
undef $SNMP_util::LHost;
undef $SNMP_util::IPv4only;
$SNMP_util::Debug = 0;
$SNMP_util::CacheFile = "OID_cache.txt";
$SNMP_util::CacheLoaded = 0;
$SNMP_util::Return_array_refs = 0;
$SNMP_util::Return_hash_refs = 0;
srand(time + $$);
### Prototypes
sub snmpget ($@);
sub snmpgetnext ($@);
sub snmpopen ($$$);
sub snmpwalk ($@);
sub snmpwalk_flg ($$@);
sub snmpset ($@);
sub snmptrap ($$$$$@);
sub snmpgetbulk ($$$@);
sub snmpmaptable ($$@);
sub snmpmaptable4 ($$$@);
sub snmpwalkhash ($$@);
sub toOID (@);
sub snmpmapOID (@);
sub snmpMIB_to_OID ($);
sub encode_oid_with_errmsg ($);
sub Check_OID ($);
sub snmpLoad_OID_Cache ($);
sub snmpQueue_MIB_File (@);
sub MIB_fill_OID ($);
sub version () { $VERSION; }
#
# Start an snmp session
#
sub snmpopen ($$$) {
my($host, $type, $vars) = @_;
my($nhost, $port, $community, $lhost, $lport, $nlhost);
my($timeout, $retries, $backoff, $version);
my $v4onlystr;
$type = 0 if (!defined($type));
$community = "public";
$nlhost = "";
($community, $host) = ($1, $2) if ($host =~ /^(.*)@([^@]+)$/);
# We can't split on the : character because a numeric IPv6
# address contains a variable number of :'s
my $opts;
if( ($host =~ /^(\[.*\]):(.*)$/) or ($host =~ /^(\[.*\])$/) ) {
# Numeric IPv6 address between []
($host, $opts) = ($1, $2);
} else {
# Hostname or numeric IPv4 address
($host, $opts) = split(':', $host, 2);
}
($port, $timeout, $retries, $backoff, $version, $v4onlystr) = split(':', $opts, 6)
if(defined($opts) and (length $opts > 0) );
undef($version) if (defined($version) and length($version) <= 0);
$v4onlystr = "" unless defined $v4onlystr;
$version = '1' unless defined $version;
if (defined($port) and ($port =~ /^([^!]*)!(.*)$/)) {
($port, $lhost) = ($1, $2);
$nlhost = $lhost;
($lhost, $lport) = ($1, $2) if ($lhost =~ /^(.*)!(.*)$/);
undef($lhost) if (defined($lhost) and (length($lhost) <= 0));
undef($lport) if (defined($lport) and (length($lport) <= 0));
}
undef($port) if (defined($port) and length($port) <= 0);
$port = 162 if ($type == 1 and !defined($port));
$nhost = "$community\@$host";
$nhost .= ":" . $port if (defined($port));
if ((!defined($SNMP_util::Session))
or ($SNMP_util::Host ne $nhost)
or ($SNMP_util::Version ne $version)
or ($SNMP_util::LHost ne $nlhost)
or ($SNMP_util::IPv4only ne $v4onlystr)) {
if (defined($SNMP_util::Session)) {
$SNMP_util::Session->close();
undef $SNMP_util::Session;
undef $SNMP_util::Host;
undef $SNMP_util::Version;
undef $SNMP_util::LHost;
undef $SNMP_util::IPv4only;
}
$SNMP_util::Session = ($version =~ /^2c?$/i)
? SNMPv2c_Session->open($host, $community, $port, undef,
$lport, undef, $lhost, ($v4onlystr eq 'v4only') ? 1:0 )
: SNMP_Session->open($host, $community, $port, undef,
$lport, undef, $lhost, ($v4onlystr eq 'v4only') ? 1:0 );
($SNMP_util::Host = $nhost, $SNMP_util::Version = $version,
$SNMP_util::LHost = $nlhost, $SNMP_util::IPv4only = $v4onlystr) if defined($SNMP_util::Session);
}
if (defined($SNMP_util::Session)) {
if (ref $vars->[0] eq 'HASH') {
my $opts = shift @$vars;
foreach $type (keys %$opts) {
if ($type eq 'return_array_refs') {
$SNMP_util::Return_array_refs = $opts->{$type};
} elsif ($type eq 'return_hash_refs') {
$SNMP_util::Return_hash_refs = $opts->{$type};
} else {
if (exists $SNMP_util::Session->{$type}) {
if ($type eq 'timeout') {
$SNMP_util::Session->set_timeout($opts->{$type});
} elsif ($type eq 'retries') {
$SNMP_util::Session->set_retries($opts->{$type});
} elsif ($type eq 'backoff') {
$SNMP_util::Session->set_backoff($opts->{$type});
} else {
$SNMP_util::Session->{$type} = $opts->{$type};
}
} else {
carp "SNMPopen Unknown SNMP Option Key '$type'\n"
unless ($SNMP_Session::suppress_warnings > 1);
}
}
}
}
$SNMP_util::Session->set_timeout($timeout)
if (defined($timeout) and (length($timeout) > 0));
$SNMP_util::Session->set_retries($retries)
if (defined($retries) and (length($retries) > 0));
$SNMP_util::Session->set_backoff($backoff)
if (defined($backoff) and (length($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;
@retvals = ();
$session = &snmpopen($host, 0, \@vars);
if (!defined($session)) {
carp "SNMPGET Problem for $host\n"
unless ($SNMP_Session::suppress_warnings > 1);
return wantarray ? @retvals : undef;
}
@enoid = &toOID(@vars);
if ($#enoid < 0) {
return wantarray ? @retvals : undef;
}
if ($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 wantarray ? @retvals : $retvals[0];
}
$var = join(' ', @vars);
carp "SNMPGET Problem for $var on $host\n"
unless ($SNMP_Session::suppress_warnings > 1);
return wantarray ? @retvals : undef;
}
#
# A restricted snmpgetnext.
#
sub snmpgetnext ($@) {
my($host, @vars) = @_;
my(@enoid, $var, $response, $bindings, $binding);
my($value, $upoid, $oid, @retvals);
my($noid);
my $session;
@retvals = ();
$session = &snmpopen($host, 0, \@vars);
if (!defined($session)) {
carp "SNMPGETNEXT Problem for $host\n"
unless ($SNMP_Session::suppress_warnings > 1);
return wantarray ? @retvals : undef;
}
@enoid = &toOID(@vars);
if ($#enoid < 0) {
return wantarray ? @retvals : undef;
}
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%@");
my $tempo = pretty_print($oid);
my $tempv = pretty_print($value);
push @retvals, "$tempo:$tempv";
}
return wantarray ? @retvals : $retvals[0];
} else {
$var = join(' ', @vars);
carp "SNMPGETNEXT Problem for $var on $host\n"
unless ($SNMP_Session::suppress_warnings > 1);
return wantarray ? @retvals : undef;
}
}
#
# A restricted snmpwalk.
#
sub snmpwalk ($@) {
my($host, @vars) = @_;
return(&snmpwalk_flg($host, undef, @vars));
}
#
# Walk the MIB, putting everything you find into hashes.
#
sub snmpwalkhash($$@) {
# my($host, $hash_sub, @vars) = @_;
return(&snmpwalk_flg( @_ ));
}
sub snmpwalk_flg ($$@) {
my($host, $hash_sub, @vars) = @_;
my(@enoid, $var, $response, $bindings, $binding);
my($value, $upoid, $oid, @retvals, @retvaltmprefs);
my($got, @nnoid, $noid, $ok, $ix, @avars);
my $session;
my(%soid);
my(%done, %rethash, $h_ref);
$h_ref = (ref $vars[$#vars] eq "HASH") ? pop(@vars) : \%rethash;
$session = &snmpopen($host, 0, \@vars);
if (!defined($session)) {
carp "SNMPWALK Problem for $host\n"
unless ($SNMP_Session::suppress_warnings > 1);
if (defined($hash_sub)) {
return ($h_ref) if ($SNMP_util::Return_hash_refs);
return (%$h_ref);
} else {
@retvals = ();
return (@retvals);
}
}
@enoid = toOID(@vars);
if ($#enoid < 0) {
if (defined($hash_sub)) {
return ($h_ref) if ($SNMP_util::Return_hash_refs);
return (%$h_ref);
} else {
@retvals = ();
return (@retvals);
}
}
# GIL
#
# Create/Refresh a reversed hash with oid -> name
#
if (defined($hash_sub) and ($RevNeeded)) {
%revOIDS = reverse %SNMP_util::OIDS;
$RevNeeded = 0;
}
$got = 0;
@nnoid = @enoid;
undef @vars;
foreach $noid (@enoid) {
$upoid = pretty_print($noid);
push(@vars, $upoid);
}
# @vars is the original set of walked variables.
# @avars is the current set of walked variables as the
# walk goes on.
# @vars stays static while @avars may shrink as we reach end
# of walk for individual variables during PDU exchange.
@avars = @vars;
# IlvJa
#
# Create temporary array of refs to return vals.
if ($SNMP_util::Return_array_refs) {
for($ix = 0;$ix < scalar @vars; $ix++) {
my $tmparray = [];
$retvaltmprefs[$ix] = $tmparray;
$retvals[$ix] = $tmparray;
}
}
while(($SNMP_util::Version ne '1' and $session->{'use_getbulk'})
? $session->getbulk_request_response(0,
$session->default_max_repetitions(),
@nnoid)
: $session->getnext_request_response(@nnoid))
{
$got = 1;
$response = $session->pdu_buffer;
($bindings) = $session->decode_get_response($response);
$ix = 0;
while ($bindings) {
($binding, $bindings) = decode_sequence($bindings);
unless ($nnoid[$ix]) { # IlvJa
$ix = ++$ix % (scalar @avars);
next;
}
($oid, $value) = decode_by_template($binding, "%O%@");
$ok = 0;
my $tempo = pretty_print($oid);
$noid = $avars[$ix]; # IlvJa
if ($tempo =~ /^$noid\./ or $tempo eq $noid ) {
$ok = 1;
$upoid = $noid;
} else {
# IlvJa
#
# The walk for variable $vars[$ix] has been finished as
# $nnoid[$ix] no longer is in the $avar[$ix] OID tree.
# So we exclude this variable from further requests.
$avars[$ix] = "";
$nnoid[$ix] = "";
$retvaltmprefs[$ix] = undef if $SNMP_util::Return_array_refs;
}
if ($ok) {
my $tmp = encode_oid_with_errmsg ($tempo);
if (!defined $tmp) {
if (defined($hash_sub)) {
return ($h_ref) if ($SNMP_util::Return_hash_refs);
return (%$h_ref);
} else {
@retvals = ();
return (@retvals);
}
}
if (exists($done{$tmp})) { # GIL, Ilvja
#
# We've detected a loop for $nnoid[$ix], so mark it as finished.
# Exclude this variable from further requests.
#
$avars[$ix] = "";
$nnoid[$ix] = "";
$retvaltmprefs[$ix] = undef if $SNMP_util::Return_array_refs;
next;
}
$nnoid[$ix] = $tmp; # Keep on walking. (IlvJa)
my $tempv = pretty_print($value);
if (defined($hash_sub)) {
#
# extract name of the oid, if possible, the rest becomes the instance
#
my $inst = "";
my $upo = $upoid;
while (!exists($revOIDS{$upo}) and length($upo)) {
$upo =~ s/(\.\d+?)$//;
if (defined($1) and length($1)) {
$inst = $1 . $inst;
} else {
$upo = "";
last;
}
}
if (length($upo) and exists($revOIDS{$upo})) {
$upo = $revOIDS{$upo} . $inst;
} else {
$upo = $upoid;
}
$inst = "";
while (!exists($revOIDS{$tempo}) and length($tempo)) {
$tempo =~ s/(\.\d+?)$//;
if (defined($1) and length($1)) {
$inst = $1 . $inst;
} else {
$tempo = "";
last;
}
}
if (length($tempo) and exists($revOIDS{$tempo})) {
$var = $revOIDS{$tempo};
} else {
$var = pretty_print($oid);
}
#
# call hash_sub
#
&$hash_sub($h_ref, $host, $var, $tempo, $inst,
$tempv, $upo);
} else {
if ($SNMP_util::Return_array_refs) {
$tempo=~s/^$upoid\.//;
push @{$retvaltmprefs[$ix]}, "$tempo:$tempv";
} else {
$tempo=~s/^$upoid\.// if ($#enoid <= 0);
push @retvals, "$tempo:$tempv";
}
}
$done{$tmp} = 1; # GIL
}
$ix = ++$ix % (scalar @avars);
}
# Ok, @nnoid should contain the remaining variables for the
# next request. Some or all entries in @nnoid might be the empty
# string. If the nth element in @nnoid is "" that means that
# the walk related to the nth variable in the last request has been
# completed and we should not include that var in subsequent reqs.
# Clean up both @nnoid and @avars so "" elements are removed.
@nnoid = grep (($_), @nnoid);
@avars = grep (($_), @avars);
@retvaltmprefs = grep (($_), @retvaltmprefs);
last if ($#nnoid < 0); # @nnoid empty means we are done walking.
}
if (!$got) {
$var = join(' ', @vars);
carp "SNMPWALK Problem for $var on $host\n"
unless ($SNMP_Session::suppress_warnings > 1);
@retvals = ();
}
if (defined($hash_sub)) {
return ($h_ref) if ($SNMP_util::Return_hash_refs);
return (%$h_ref);
} else {
return (@retvals);
}
}
#
# A restricted snmpset.
#
sub snmpset($@) {
my($host, @vars) = @_;
my(@enoid, $response, $bindings, $binding);
my($oid, @retvals, $type, $value, $val);
my $session;
@retvals = ();
$session = &snmpopen($host, 0, \@vars);
if (!defined($session)) {
carp "SNMPSET Problem for $host\n"
unless ($SNMP_Session::suppress_warnings > 1);
return wantarray ? @retvals : undef;
}
while(@vars) {
($oid) = toOID((shift @vars));
$type = shift @vars;
$value = shift @vars;
$type =~ tr/A-Z/a-z/;
if ($type eq "int") {
$val = encode_int($value);
} elsif ($type eq "integer") {
$val = encode_int($value);
} elsif ($type eq "string") {
$val = encode_string($value);
} elsif ($type eq "octetstring") {
$val = encode_string($value);
} elsif ($type eq "octet string") {
$val = encode_string($value);
} elsif ($type eq "oid") {
$val = encode_oid_with_errmsg($value);
} elsif ($type eq "object id") {
$val = encode_oid_with_errmsg($value);
} elsif ($type eq "object identifier") {
$val = encode_oid_with_errmsg($value);
} elsif ($type eq "ipaddr") {
$val = encode_ip_address($value);
} elsif ($type eq "ip address") {
$val = encode_ip_address($value);
} elsif ($type eq "timeticks") {
$val = encode_timeticks($value);
} elsif ($type eq "uint") {
$val = encode_uinteger32($value);
} elsif ($type eq "uinteger") {
$val = encode_uinteger32($value);
} elsif ($type eq "uinteger32") {
$val = encode_uinteger32($value);
} elsif ($type eq "unsigned int") {
$val = encode_uinteger32($value);
} elsif ($type eq "unsigned integer") {
$val = encode_uinteger32($value);
} elsif ($type eq "unsigned integer32") {
$val = encode_uinteger32($value);
} elsif ($type eq "counter") {
$val = encode_counter32($value);
} elsif ($type eq "counter32") {
$val = encode_counter32($value);
} elsif ($type eq "counter64") {
$val = encode_counter64($value);
} elsif ($type eq "gauge") {
$val = encode_gauge32($value);
} elsif ($type eq "gauge32") {
$val = encode_gauge32($value);
} else {
carp "unknown SNMP type: $type\n"
unless ($SNMP_Session::suppress_warnings > 1);
return wantarray ? @retvals : undef;
}
if (!defined($val)) {
carp "SNMP type $type value $value didn't encode properly\n"
unless ($SNMP_Session::suppress_warnings > 1);
return wantarray ? @retvals : undef;
}
push @enoid, [$oid,$val];
}
if ($#enoid < 0) {
return wantarray ? @retvals : undef;
}
if ($session->set_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 wantarray ? @retvals : $retvals[0];
}
return wantarray ? @retvals : undef;
}
#
# Send an SNMP trap
#
sub snmptrap($$$$$@) {
my($host, $ent, $agent, $gen, $spec, @vars) = @_;
my($oid, @retvals, $type, $value);
my(@enoid);
my $session;
$session = &snmpopen($host, 1, \@vars);
if (!defined($session)) {
carp "SNMPTRAP Problem for $host\n"
unless ($SNMP_Session::suppress_warnings > 1);
return undef;
}
if ($agent =~ /^\d+\.\d+\.\d+\.\d+(.*)/ ) {
$agent = pack("C*", split /\./, $agent);
} else {
$agent = inet_aton($agent);
}
push @enoid, toOID(($ent));
push @enoid, encode_ip_address($agent);
push @enoid, encode_int($gen);
push @enoid, encode_int($spec);
push @enoid, encode_timeticks((time-$agent_start_time) * 100);
while(@vars) {
($oid) = toOID((shift @vars));
$type = shift @vars;
$value = shift @vars;
if ($type =~ /string/i) {
$value = encode_string($value);
push @enoid, [$oid,$value];
} elsif ($type =~ /ipaddr/i) {
$value = encode_ip_address($value);
push @enoid, [$oid,$value];
} elsif ($type =~ /int/i) {
$value = encode_int($value);
push @enoid, [$oid,$value];
} elsif ($type =~ /oid/i) {
my $tmp = encode_oid_with_errmsg($value);
return undef unless defined $tmp;
push @enoid, [$oid,$tmp];
} else {
carp "unknown SNMP type: $type\n"
unless ($SNMP_Session::suppress_warnings > 1);
return undef;
}
}
return($session->trap_request_send(@enoid));
}
#
# A restricted snmpgetbulk.
#
sub snmpgetbulk ($$$@) {
my($host, $nr, $mr, @vars) = @_;
my(@enoid, $var, $response, $bindings, $binding);
my($value, $upoid, $oid, @retvals);
my($noid);
my $session;
@retvals = ();
$session = &snmpopen($host, 0, \@vars);
if (!defined($session)) {
carp "SNMPGETBULK Problem for $host\n"
unless ($SNMP_Session::suppress_warnings > 1);
return @retvals;
}
@enoid = &toOID(@vars);
return @retvals if ($#enoid < 0);
undef @vars;
foreach $noid (@enoid) {
$upoid = pretty_print($noid);
push(@vars, $upoid);
}
if ($session->getbulk_request_response($nr, $mr, @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 $tempo = pretty_print($oid);
my $tempv = pretty_print($value);
push @retvals, "$tempo:$tempv";
}
return @retvals;
} else {
$var = join(' ', @vars);
carp "SNMPGETBULK Problem for $var on $host\n"
unless ($SNMP_Session::suppress_warnings > 1);
return @retvals;
}
}
#
# walk a table, calling a user-supplied function for each
# column of a table.
#
sub snmpmaptable($$@) {
my($host, $fun, @vars) = @_;
return snmpmaptable4($host, $fun, 0, @vars);
}
sub snmpmaptable4($$$@) {
my($host, $fun, $max_reps, @vars) = @_;
my(@enoid, $var, $session);
$session = &snmpopen($host, 0, \@vars);
if (!defined($session)) {
carp "SNMPMAPTABLE Problem for $host\n"
unless ($SNMP_Session::suppress_warnings > 1);
return undef;
}
foreach $var (toOID(@vars)) {
push(@enoid, [split('\.', pretty_print($var))]);
}
$max_reps = $session->default_max_repetitions() if ($max_reps <= 0);
return $session->map_table_start_end( [@enoid],
sub() {
my ($ind, @vals) = @_;
my (@pvals, $val);
foreach $val (@vals) {
push(@pvals, pretty_print($val));
}
&$fun($ind, @pvals);
},
"", undef, $max_reps);
}
#
# Given an OID in either ASN.1 or mixed text/ASN.1 notation, return an
# encoded OID.
#
sub toOID(@) {
my(@vars) = @_;
my($oid, $var, $tmp, $tmpv, @retvar);
undef @retvar;
foreach $var (@vars) {
($oid, $tmp) = &Check_OID($var);
if (!$oid and $SNMP_util::CacheLoaded == 0) {
$tmp = $SNMP_Session::suppress_warnings;
$SNMP_Session::suppress_warnings = 1000;
&snmpLoad_OID_Cache($SNMP_util::CacheFile);
$SNMP_util::CacheLoaded = 1;
$SNMP_Session::suppress_warnings = $tmp;
($oid, $tmp) = &Check_OID($var);
}
while (!$oid and $#SNMP_util::MIB_Files >= 0) {
$tmp = $SNMP_Session::suppress_warnings;
$SNMP_Session::suppress_warnings = 1000;
snmpMIB_to_OID(shift(@SNMP_util::MIB_Files));
$SNMP_Session::suppress_warnings = $tmp;
($oid, $tmp) = &Check_OID($var);
if ($oid) {
open(CACHE, ">>$SNMP_util::CacheFile");
print CACHE "$tmp\t$oid\n";
close(CACHE);
}
}
if ($oid) {
$var =~ s/^$tmp/$oid/;
} else {
carp "Unknown SNMP var $var\n"
unless ($SNMP_Session::suppress_warnings > 1);
next;
}
while ($var =~ /\"([^\"]*)\"/) {
$tmp = sprintf("%d.%s", length($1), join(".", map(ord, split(//, $1))));
$var =~ s/\"$1\"/$tmp/;
}
print "toOID: $var\n" if $SNMP_util::Debug;
$tmp = encode_oid_with_errmsg($var);
if (!defined($tmp)) {
my @empty = ();
return @empty;
}
push(@retvar, $tmp);
}
return @retvar;
}
#
# Add passed-in text, OID pairs to the OID mapping table.
#
sub snmpmapOID(@)
{
my(@vars) = @_;
my($oid, $txt);
while($#vars >= 0) {
$txt = shift @vars;
$oid = shift @vars;
next unless($txt =~ /^[a-zA-Z][\w\-]*(\.[a-zA-Z][\w\-])*$/);
next unless($oid =~ /^\d+(\.\d+)*$/);
$SNMP_util::OIDS{$txt} = $oid;
$RevNeeded = 1;
print "snmpmapOID: $txt => $oid\n" if $SNMP_util::Debug;
}
return undef;
}
#
# Open the passed-in file name and read it in to populate
# the cache of text-to-OID map table. It expects lines
# with two fields, the first the textual string like "ifInOctets",
# and the second the OID value, like "1.3.6.1.2.1.2.2.1.10".
#
# blank lines and anything after a '#' or between '--' is ignored.
#
sub snmpLoad_OID_Cache ($) {
my($arg) = @_;
my($txt, $oid);
if (!open(CACHE, $arg)) {
carp "snmpLoad_OID_Cache: Can't open $arg: $!"
unless ($SNMP_Session::suppress_warnings > 1);
return -1;
}
while(<CACHE>) {
s/#.*//; # '#' starts a comment
s/--.*?--/ /g; # comment delimited by '--', like MIBs
s/--.*//; # comment started by '--'
next if (/^$/);
next unless (/\s/); # must have whitespace as separator
chomp;
($txt, $oid) = split(' ', $_, 2);
$txt = $1 if ($txt =~ /^[\'\"](.*)[\'\"]/);
$oid = $1 if ($oid =~ /^[\'\"](.*)[\'\"]/);
if (($txt =~ /^\.?\d+(\.\d+)*\.?$/)
and ($oid !~ /^\.?\d+(\.\d+)*\.?$/)) {
my($a) = $oid;
$oid = $txt;
$txt = $a;
}
$oid =~ s/^\.//;
$oid =~ s/\.$//;
&snmpmapOID($txt, $oid);
}
close(CACHE);
return 0;
}
#
# Check to see if an OID is in the text-to-OID cache.
# Returns the OID and the corresponding text as two separate
# elements.
#
sub Check_OID ($) {
my($var) = @_;
my($tmp, $tmpv, $oid);
if ($var =~ /^[a-zA-Z][\w\-]*(\.[a-zA-Z][\w\-]*)*/)
{
$tmp = $&;
$tmpv = $tmp;
for (;;) {
last if exists($SNMP_util::OIDS{$tmpv});
last if !($tmpv =~ s/^[^\.]*\.//);
}
$oid = $SNMP_util::OIDS{$tmpv};
if ($oid) {
return ($oid, $tmp);
} else {
my @empty = ();
return @empty;
}
}
return ($var, $var);
}
#
# Save the passed-in list of MIB files until an OID can't be
# found in the existing table. At that time the MIB file will
# be loaded, and the lookup attempted again.
#
sub snmpQueue_MIB_File (@) {
my(@files) = @_;
my($file);
foreach $file (@files) {
push(@SNMP_util::MIB_Files, $file);
}
}
#
# Read in the passed MIB file, parsing it
# for their text-to-OID mappings
#
sub snmpMIB_to_OID ($) {
my($arg) = @_;
my($cnt, $quote, $buf, %tOIDs, $tgot);
my($var, @parts, $strt, $indx, $ind, $val);
if (!open(MIB, $arg)) {
carp "snmpMIB_to_OID: Can't open $arg: $!"
unless ($SNMP_Session::suppress_warnings > 1);
return -1;
}
print "snmpMIB_to_OID: loading $arg\n" if $SNMP_util::Debug;
$cnt = 0;
$quote = 0;
$tgot = 0;
$buf = '';
while(<MIB>) {
if ($quote) {
next unless /"/;
$quote = 0;
}
chomp;
$buf .= ' ' . $_;
$buf =~ s/"[^"]*"//g; # throw away quoted strings
$buf =~ s/--.*?--/ /g; # throw away comments (-- anything --)
$buf =~ s/--.*//; # throw away comments (-- anything to EOL)
$buf =~ s/\s+/ /g; # clean up multiple spaces
if ($buf =~ /"/) { # look for quoted string
$quote = 1;
next;
}
if ($buf =~ /DEFINITIONS *::= *BEGIN/) {
$cnt += MIB_fill_OID(\%tOIDs) if ($tgot);
$buf = '';
%tOIDs = ();
$tgot = 0;
next;
}
$buf =~ s/OBJECT-TYPE/OBJECT IDENTIFIER/;
$buf =~ s/OBJECT-IDENTITY/OBJECT IDENTIFIER/;
$buf =~ s/OBJECT-GROUP/OBJECT IDENTIFIER/;
$buf =~ s/MODULE-IDENTITY/OBJECT IDENTIFIER/;
$buf =~ s/NOTIFICATION-TYPE/OBJECT IDENTIFIER/;
$buf =~ s/ IMPORTS .*\;//;
$buf =~ s/ SEQUENCE *{.*}//;
$buf =~ s/ SYNTAX .*//;
$buf =~ s/ [\w\-]+ *::= *OBJECT IDENTIFIER//;
$buf =~ s/ OBJECT IDENTIFIER.*::= *{/ OBJECT IDENTIFIER ::= {/;
if ($buf =~ / ([\w\-]+) OBJECT IDENTIFIER *::= *{([^}]+)}/) {
$var = $1;
$buf = $2;
$buf =~ s/ +$//;
$buf =~ s/\s+\(/\(/g; # remove spacing around '('
$buf =~ s/\(\s+/\(/g;
$buf =~ s/\s+\)/\)/g; # remove spacing before ')'
@parts = split(' ', $buf);
$strt = '';
foreach $indx (@parts) {
if ($indx =~ /([\w\-]+)\((\d+)\)/) {
$ind = $1;
$val = $2;
if (exists($tOIDs{$strt})) {
$tOIDs{$ind} = $tOIDs{$strt} . '.' . $val;
} elsif ($strt ne '') {
$tOIDs{$ind} = "${strt}.${val}";
} else {
$tOIDs{$ind} = $val;
}
$strt = $ind;
$tgot = 1;
} elsif ($indx =~ /^\d+$/) {
if (exists($tOIDs{$strt})) {
$tOIDs{$var} = $tOIDs{$strt} . '.' . $indx;
} else {
$tOIDs{$var} = "${strt}.${indx}";
}
$tgot = 1;
} else {
$strt = $indx;
}
}
$buf = '';
}
}
$cnt += MIB_fill_OID(\%tOIDs) if ($tgot);
$RevNeeded = 1 if ($cnt > 0);
return $cnt;
}
#
# Fill the OIDS hash with results from the MIB parsing
#
sub MIB_fill_OID ($)
{
my($href) = @_;
my($cnt, $changed, @del, $var, $val, @parts, $indx);
my(%seen);
$cnt = 0;
do {
$changed = 0;
@del = ();
foreach $var (keys %$href) {
$val = $href->{$var};
@parts = split('\.', $val);
$val = '';
foreach $indx (@parts) {
if ($indx =~ /^\d+$/) {
$val .= '.' . $indx;
} else {
if (exists($SNMP_util::OIDS{$indx})) {
$val = $SNMP_util::OIDS{$indx};
} else {
$val .= '.' . $indx;
}
}
}
if ($val =~ /^[\d\.]+$/) {
$val =~ s/^\.+//;
if (!exists($SNMP_util::OIDS{$var})
|| (length($val) > length($SNMP_util::OIDS{$var}))) {
$SNMP_util::OIDS{$var} = $val;
print "'$var' => '$val'\n" if $SNMP_util::Debug;
$changed = 1;
$cnt++;
}
push @del, $var;
}
}
foreach $var (@del) {
delete $href->{$var};
}
} while($changed);
$Carp::CarpLevel++;
foreach $var (sort keys %$href) {
$val = $href->{$var};
$val =~ s/\..*//;
next if (exists($seen{$val}));
$seen{$val} = 1;
$seen{$var} = 1;
carp "snmpMIB_to_OID: prefix \"$val\" unknown, load the parent MIB first.\n"
unless ($SNMP_Session::suppress_warnings > 1);
}
$Carp::CarpLevel--;
return $cnt;
}
sub encode_oid_with_errmsg ($) {
my ($oid) = @_;
my $tmp = encode_oid(split(/\./, $oid));
if (! defined $tmp) {
carp "cannot encode Object ID $oid: $BER::errmsg"
unless ($SNMP_Session::suppress_warnings > 1);
return undef;
}
return $tmp;
}
1;