212 lines
6.9 KiB
Perl
212 lines
6.9 KiB
Perl
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#!/usr/bin/perl -w
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#
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# Router bgp (Border Gateway Protocol v4 ) monitor
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# look at each router and get the status of all is BGP neighbour
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# Adapted version for a Pandora FMS server plugin
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# Copyright 2002, Marc Hauswirth, Safe Host SA <marc@safehostnet.com>
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# Copyright 2006, Val Glinskiy, <vglinskiy@gmail.com>
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# Copyright 2010, Sancho Lerena <slerena@artica.es>
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# Some inspiration was taken from Marc Hauswirth's script http://www.kernel.org/pub/software/admin/mon/contrib/monitors/bgp/bgp.monitor
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# Modified to get bad status on a non-BGP device.
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# License: GNU GPL v2, see http://www.gnu.org/copyleft/gpl.html
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#
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# This script needs the Net::SNMP module
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my $version=1;
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use Net::SNMP qw(:snmp);
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use strict;
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use Getopt::Long;
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sub print_usage () {
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print "Usage: $0 -r <router> -c <community> [-hV]\n";
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print "\n";
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exit;
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}
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my ($opt_v, $opt_h, $opt_r, $verbose, $router, $community);
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my %ERRORS=('OK'=>0,'WARNING'=>1,'CRITICAL'=>2,'UNKNOWN'=>3);
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GetOptions
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("h" => \$opt_h, "help" => \$opt_h,
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"r=s" => \$opt_r, "router=s" => \$opt_r,
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"c=s" => \$community, "community=s" => \$community,
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"v" => \$opt_v, "verbose" => \$opt_v);
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if ($opt_v) {
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print "\n";
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print "check_bgp_snmp Pandora FMS server plugin version $version\n";
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print "\n";
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print_usage();
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}
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if ($opt_h) {
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print_usage();
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}
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if ( !defined($opt_r) || !defined($community) ){
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print_usage();
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}
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# OID's to the SNMP elements that I want to show...
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# From Cisco's MIB and RFC's
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# http://tools.cisco.com/Support/SNMP/do/BrowseMIB.do?local=en&step=2&mibName=BGP4-MIB
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my %oids = (
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"SysUptime" => "1.3.6.1.2.1.1.3.0",
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"bgpVersion" => "1.3.6.1.2.1.15.1.0",
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"bgpLocalAs" => "1.3.6.1.2.1.15.2.0",
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# "bgpPeerTable" => "1.3.6.1.2.1.15.3",
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"bgpPeerEntry" => "1.3.6.1.2.1.15.3.1",
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"bgpPeerIdentifier" => "1.3.6.1.2.1.15.3.1.1",
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"bgpPeerState" => "1.3.6.1.2.1.15.3.1.2",
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"bgpPeerAdminStatus" => "1.3.6.1.2.1.15.3.1.3",
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"bgpPeerNegotiatedVersion" => "1.3.6.1.2.1.15.3.1.4",
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"bgpPeerLocalAddr" => "1.3.6.1.2.1.15.3.1.5",
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"bgpPeerLocalPort" => "1.3.6.1.2.1.15.3.1.6",
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"bgpPeerRemoteAddr" => "1.3.6.1.2.1.15.3.1.7",
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"bgpPeerRemotePort" => "1.3.6.1.2.1.15.3.1.8",
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"bgpPeerRemoteAs" => "1.3.6.1.2.1.15.3.1.9",
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"bgpPeerInUpdates" => "1.3.6.1.2.1.15.3.1.10",
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"bgpPeerOutUpdates" => "1.3.6.1.2.1.15.3.1.11",
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"bgpPeerInTotalMessages" => "1.3.6.1.2.1.15.3.1.12",
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"bgpPeerOutTotalMessages" => "1.3.6.1.2.1.15.3.1.13",
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"bgpPeerLastError" => "1.3.6.1.2.1.15.3.1.14",
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"bgpPeerFsmEstablishedTransitions" => "1.3.6.1.2.1.15.3.1.15",
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"bgpPeerFsmEstablishedTime" => "1.3.6.1.2.1.15.3.1.16",
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"bgpPeerConnectRetryInterval" => "1.3.6.1.2.1.15.3.1.17",
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"bgpPeerHoldTime" => "1.3.6.1.2.1.15.3.1.18",
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"bgpPeerKeepAlive" => "1.3.6.1.2.1.15.3.1.19",
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"bgpPeerHoldTimeConfigured" => "1.3.6.1.2.1.15.3.1.20",
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"bgpPeerKeepAliveConfigured" => "1.3.6.1.2.1.15.3.1.21",
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"bgpPeerMinASOriginationInterval" => "1.3.6.1.2.1.15.3.1.22",
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"bgpPeerMinRouteAdvertisementInterval" => "1.3.6.1.2.1.15.3.1.23",
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"bgpPeerInUpdateElapsedTime" => "1.3.6.1.2.1.15.3.1.24",
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"bgpIdentifier" => "1.3.6.1.2.1.15.4",
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"bgpRcvdPathAttrTable" => "1.3.6.1.2.1.15.5",
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"bgp4PathAttrTable" => "1.3.6.1.2.1.15.6",
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"bgpPathAttrEntry" => "1.3.6.1.2.1.15.5.1",
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"bgpPathAttrPeer" => "1.3.6.1.2.1.15.5.1.1",
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"bgpPathAttrDestNetwork" => "1.3.6.1.2.1.15.5.1.2",
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"bgpPathAttrOrigin" => "1.3.6.1.2.1.15.5.1.3",
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"bgpPathAttrASPath" => "1.3.6.1.2.1.15.5.1.4",
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"bgpPathAttrNextHop" => "1.3.6.1.2.1.15.5.1.5",
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"bgpPathAttrInterASMetric" => "1.3.6.1.2.1.15.5.1.6",
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"bgp4PathAttrEntry" => "1.3.6.1.2.1.15.6.1",
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"bgp4PathAttrPeer" => "1.3.6.1.2.1.15.6.1.1",
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"bgp4PathAttrIpAddrPrefixLen" => "1.3.6.1.2.1.15.6.1.2",
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"bgp4PathAttrIpAddrPrefix" => "1.3.6.1.2.1.15.6.1.3",
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"bgp4PathAttrOrigin" => "1.3.6.1.2.1.15.6.1.4",
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"bgp4PathAttrASPathSegment" => "1.3.6.1.2.1.15.6.1.5",
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"bgp4PathAttrNextHop" => "1.3.6.1.2.1.15.6.1.6",
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"bgp4PathAttrMultiExitDisc" => "1.3.6.1.2.1.15.6.1.7",
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"bgp4PathAttrLocalPref" => "1.3.6.1.2.1.15.6.1.8",
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"bgp4PathAttrAtomicAggregate" => "1.3.6.1.2.1.15.6.1.9",
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"bgp4PathAttrAggregatorAS" => "1.3.6.1.2.1.15.6.1.10",
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"bgp4PathAttrAggregatorAddr" => "1.3.6.1.2.1.15.6.1.11",
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"bgp4PathAttrCalcLocalPref" => "1.3.6.1.2.1.15.6.1.12",
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"bgp4PathAttrBest" => "1.3.6.1.2.1.15.6.1.13",
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"bgp4PathAttrUnknown" => "1.3.6.1.2.1.15.6.1.14",
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);
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my %BgpPeerState = (
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1 => "idle",
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2 => "connect",
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3 => "active",
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4 => "opensnet",
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5 => "openconfirm",
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6 => "established"
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);
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my %BgpPeerAdminState = (
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1 => "stop",
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2 => "start"
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);
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if ($opt_r) {
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$router= $opt_r;
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# Get some infos about this router
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my ($sess, $error) = Net::SNMP->session ( -hostname => $router, -community => $community, -version => 2 );
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if(!defined($sess)) {
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#print("SESSION ERROR: $error\n");
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print ("0\n");
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exit;
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}
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# if you get "Message size exceeded buffer maxMsgSize" error, try reducing -maxrepetitions
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my $results = $sess->get_bulk_request(-varbindlist => [$oids{bgpPeerRemoteAddr}], -maxrepetitions =>20 );
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if (!defined($results)){
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# print "ERROR: $oids{bgpPeerRemoteAddr} No results $sess->error \n";
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print ("0\n");
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exit;
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}
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my $key;
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my %vals=%{$results};
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my $valid_keys = 0;
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foreach $key (keys %vals) {
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if(oid_base_match($oids{bgpPeerRemoteAddr}, $key)) {
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$valid_keys++;
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my $PeerState;
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my $oidPeerStatus=$oids{bgpPeerState}.".".$vals{$key};
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$PeerState = $sess->get_request(-varbindlist => [$oidPeerStatus]);
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my $oidInPrefixes=$oids{bgpPeerInUpdates}.".".$vals{$key};
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my $InPrefixStatus;
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$InPrefixStatus = $sess->get_request(-varbindlist => [$oidInPrefixes]);
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if (!defined($PeerState)){
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# print "ERROR: $oidPeerStatus No results $sess->error\n";
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print ("0\n");
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exit;
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}
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if (!defined($InPrefixStatus)) {
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# print "ERROR: $InPrefixStatus No results $sess->error\n";
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print ("0\n");
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exit;
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}
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# Let's check neighbor's state. If it's not "established" and not administratively down , send alarm
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if ( $BgpPeerState{$PeerState->{$oidPeerStatus}} ne "established" ) {
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my $oidNeighborAdminStatus= $oids{bgpPeerAdminStatus}.".".$vals{$key};
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my $NeighborAdminStatus = $sess->get_request(-varbindlist => [$oidNeighborAdminStatus]);
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if ( $NeighborAdminStatus -> {$oidNeighborAdminStatus} == 2 ) {
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# print ("ERROR: Neighbor $vals{$key} is $BgpPeerState{$PeerState->{$oidPeerStatus}}\n");
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print ("0\n");
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exit;
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}
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}
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else {
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if(($InPrefixStatus ->{$oidInPrefixes}) == 0) {
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# print "Neighbor $vals{$key} sends 0 prefixes\n";
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print ("0\n");
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exit;
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}
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}
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}
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}
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# If doesnt have any BGP information, exit. BGP not good (modified from original nagios plugin)
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if ($valid_keys == 0){
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print "0\n";
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exit;
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}
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$sess->close;
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# print(" All BGP Neighbors are sending updates\n");
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print ("1\n");
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exit;
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}
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