From 0b6423f9c99d9edf8c96fefd0f6c453859395aa1 Mon Sep 17 00:00:00 2001 From: Holger Weiss Date: Mon, 30 Sep 2013 00:03:24 +0200 Subject: Import Nagios Plugins site Import the Nagios Plugins web site, Cronjobs, infrastructure scripts, and configuration files. --- web/attachments/302952-check_ifstatus | 483 ++++++++++++++++++++++++++++++++++ 1 file changed, 483 insertions(+) create mode 100644 web/attachments/302952-check_ifstatus (limited to 'web/attachments/302952-check_ifstatus') diff --git a/web/attachments/302952-check_ifstatus b/web/attachments/302952-check_ifstatus new file mode 100644 index 0000000..2381fd2 --- /dev/null +++ b/web/attachments/302952-check_ifstatus @@ -0,0 +1,483 @@ +#! /opt/coolstack/bin/perl -w +# vim:foldmethod=syntax:tabstop=4:shiftwidth=4 +# +# Matthew Martin, Tuesday August 14, 2007 +# Problems with check_ifstatus.pl +# 1) "No response from remote host" should be unknown, not critical, right? +# 2) Serial link "dormant" should be critical, not okay +# 3) dormant, excluded and unused interfaces are not correctly counted +# 4) add some default exclusions +# +# check_ifstatus.pl - nagios plugin +# +# +# Copyright (C) 2000 Christoph Kron +# Modified 5/2002 to conform to updated Nagios Plugin Guidelines (S. Ghosh) +# Added -x option (4/2003) +# Added -u option (4/2003) +# Added -M option (10/2003) +# Added SNMPv3 support (10/2003) +# +# This program 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 +# of the License, or (at your option) any later version. +# +# This program 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 this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +# +# +# Report bugs to: ck@zet.net, nagiosplug-help@lists.sf.net +# +# 11.01.2000 Version 1.0 +# +# $Id: check_ifstatus.pl 884 2004-08-18 19:51:35Z tonvoon $ + +use POSIX; +use strict; +use lib "/opt/nagios-3.0.5/libexec" ; +use utils qw($TIMEOUT %ERRORS &print_revision &support); + +use Net::SNMP; +use Getopt::Long; +Getopt::Long::Configure('bundling'); + +my $PROGNAME = "check_ifstatus"; + +sub print_help (); +sub usage (); +sub process_arguments (); + + +my $status; +my %ifOperStatus = ('1','up', + '2','down', + '3','testing', + '4','unknown', + '5','dormant', + '6','notPresent', + '7','lowerLayerDown'); # down due to the state of lower layer interface(s)); + +my $timeout ; +my $state = "UNKNOWN"; +my $answer = ""; +my $snmpkey=0; +my $snmpoid=0; +my $key=0; +my $community = "public"; +my $maxmsgsize = 1472 ; # Net::SNMP default is 1472 +my ($seclevel, $authproto, $secname, $authpass, $privpass, $auth, $priv, $context); +my $port = 161; +my @snmpoids; +my $snmpIfAdminStatus = '1.3.6.1.2.1.2.2.1.7'; +my $snmpIfDescr = '1.3.6.1.2.1.2.2.1.2'; +my $snmpIfOperStatus = '1.3.6.1.2.1.2.2.1.8'; +my $snmpIfName = '1.3.6.1.2.1.31.1.1.1.1'; +my $snmpIfAlias = '1.3.6.1.2.1.31.1.1.1.18'; +my $snmpLocIfDescr = '1.3.6.1.4.1.9.2.2.1.1.28'; +my $snmpIfType = '1.3.6.1.2.1.2.2.1.3'; +my $hostname; +my $session; +my $error; +my $response; +my %ifStatus; +my $ifup =0 ; +my $ifdown =0; +my $ifdormant = 0; +my $ifexclude = 0 ; +my $ifunused = 0; +my $ifmessage = ""; +my $snmp_version = 1; +my $ifXTable; +my $opt_h ; +my $opt_V ; +my $opt_u; +my $opt_x ; +my %excluded ; +my @unused_ports ; + +# Just in case of problems, let's not hang Nagios +$SIG{'ALRM'} = sub { + print ("ERROR: No snmp response from $hostname (alarm timeout)\n"); + exit $ERRORS{"UNKNOWN"}; +}; + + +#Option checking +$status = process_arguments(); + +if ($status != 0) +{ + print_help() ; + exit $ERRORS{'OK'}; +} + + +alarm($timeout); + +push(@snmpoids,$snmpIfOperStatus); +push(@snmpoids,$snmpIfAdminStatus); +push(@snmpoids,$snmpIfDescr); +push(@snmpoids,$snmpIfType); +push(@snmpoids,$snmpIfName) if ( defined $ifXTable); +push(@snmpoids,$snmpIfAlias) if ( defined $ifXTable); + + + + +foreach $snmpoid (@snmpoids) { + + if (!defined($response = $session->get_table($snmpoid))) { + $answer=$session->error; + $session->close; + # mgmart6. Tuesday August 14, 2007 + # I think a SNMP error should give UNKNOWN, not CRITICAL + #$state = 'CRITICAL'; + $state = 'UNKNOWN'; + if ( ( $snmpoid =~ $snmpIfName ) && defined $ifXTable ) { + print ("$state: Device does not support ifTable - try without -I option\n"); + }else{ + print ("$state: $answer for $snmpoid with snmp version $snmp_version\n"); + } + exit $ERRORS{$state}; + } + + foreach $snmpkey (keys %{$response}) { + $snmpkey =~ /.*\.(\d+)$/; + $key = $1; + $ifStatus{$key}{$snmpoid} = $response->{$snmpkey}; + } +} + + +$session->close; + +alarm(0); + +# mgmart6. This script cannot tell that specific logical interfaces are +# associated with their phys IF so it checks them all. +foreach $key (keys %ifStatus) { + + # Skip interfaces flagged with -u (--unused_ports) + # "A comma separated list of ifIndex values that should be excluded" + if (!defined($ifStatus{$key}{'notInUse'})) { + # check only if interface is administratively up + if ($ifStatus{$key}{$snmpIfAdminStatus} == 1 ) { + + # check only if interface type is not listed in %excluded + if (!defined $excluded{$ifStatus{$key}{$snmpIfType}} ) { + if ($ifStatus{$key}{$snmpIfOperStatus} == 1 ) { $ifup++ ;} + if ($ifStatus{$key}{$snmpIfOperStatus} == 2 ) { + $ifdown++ ; + if (defined $ifXTable) { + $ifmessage .= sprintf("%s: down -> %s
", + $ifStatus{$key}{$snmpIfName}, + $ifStatus{$key}{$snmpIfAlias}); + }else{ + $ifmessage .= sprintf("%s: down
", + $ifStatus{$key}{$snmpIfDescr}); + } + } + if ($ifStatus{$key}{$snmpIfOperStatus} == 5 ) { $ifdormant++ ;} + # Matthew Martin Interface is listed in %excluded + } else { + $ifexclude++; + } + # mgmart6 If not administratively up, mark as unused. + } elsif ($ifStatus{$key}{$snmpIfAdminStatus} == 2 ) { + $ifunused++; + } + }else{ + # mgmart6. Original line: $ifunused++; + # actually matches the flag + # -u (--unused_ports) A comma separated list of ifIndex values that should be excluded + # They should be marked as excluded, not unused. + $ifexclude++; + } +} + +# mgmart6 +# The original has dormant serial interfaces return status of "OK". +# A dormant serial connection should be CRITICAL, right? +# I changed the following line to address this: +#if ($ifdown > 0) { +if (($ifdown > 0) || ($ifdormant > 0)) { + $state = 'CRITICAL'; + $answer = sprintf("host '%s', interfaces up: %d, down: %d, dormant: %d, excluded: %d, unused: %d
", + $hostname, + $ifup, + $ifdown, + $ifdormant, + $ifexclude, + $ifunused); + $answer = $answer . $ifmessage . "\n"; +} else { + $state = 'OK'; + $answer = sprintf("host '%s', interfaces up: %d, down: %d, dormant: %d, excluded: %d, unused: %d", + $hostname, + $ifup, + $ifdown, + $ifdormant, + $ifexclude, + $ifunused); +} +my $perfdata = sprintf("up=%d,down=%d,dormant=%d,excluded=%d,unused=%d",$ifup,$ifdown,$ifdormant,$ifexclude,$ifunused); +print ("$state: $answer |$perfdata\n"); +exit $ERRORS{$state}; + + +sub usage (){ + printf "\nMissing arguments!\n"; + printf "\n"; + printf "check_ifstatus -C -p -H \n"; + printf "Copyright (C) 2000 Christoph Kron\n"; + printf "Updates 5/2002 Subhendu Ghosh\n"; + printf "\n\n"; + support(); + exit $ERRORS{"UNKNOWN"}; +} + +sub print_help (){ + printf "check_ifstatus plugin for Nagios monitors operational \n"; + printf "status of each network interface on the target host\n"; + printf "\nUsage:\n"; + printf " -H (--hostname) Hostname to query - (required)\n"; + printf " -C (--community) SNMP read community (defaults to public,\n"; + printf " used with SNMP v1 and v2c\n"; + printf " -v (--snmp_version) 1 for SNMP v1 (default)\n"; + printf " 2 for SNMP v2c\n"; + printf " SNMP v2c will use get_bulk for less overhead\n"; + printf " 3 for SNMPv3 (requires -U option)"; + printf " -p (--port) SNMP port (default 161)\n"; + printf " -I (--ifmib) Agent supports IFMIB ifXTable. For Cisco - this will provide\n"; + printf " the descriptive name. Do not use if you don't know what this is. \n"; + printf " -x (--exclude) A comma separated list of ifType values that should be excluded \n"; + printf " from the report (default for an empty list is PPP(23).\n"; + printf " -u (--unused_ports) A comma separated list of ifIndex values that should be excluded \n"; + printf " from the report (default is an empty exclusion list).\n"; + printf " See the IANAifType-MIB for a list of interface types.\n"; + printf " -L (--seclevel) choice of \"noAuthNoPriv\", \"authNoPriv\", or \"authPriv\"\n"; + printf " -U (--secname) username for SNMPv3 context\n"; + printf " -c (--context) SNMPv3 context name (default is empty string)"; + printf " -A (--authpass) authentication password (cleartext ascii or localized key\n"; + printf " in hex with 0x prefix generated by using \"snmpkey\" utility\n"; + printf " auth password and authEngineID\n"; + printf " -a (--authproto) Authentication protocol ( MD5 or SHA1)\n"; + printf " -X (--privpass) privacy password (cleartext ascii or localized key\n"; + printf " in hex with 0x prefix generated by using \"snmpkey\" utility\n"; + printf " privacy password and authEngineID\n"; + printf " -M (--maxmsgsize) Max message size - usefull only for v1 or v2c\n"; + printf " -t (--timeout) seconds before the plugin times out (default=$TIMEOUT)\n"; + printf " -V (--version) Plugin version\n"; + printf " -h (--help) usage help \n\n"; + print_revision($PROGNAME, '$Revision: 884 $'); + +} + +sub process_arguments() { + $status = GetOptions( + "V" => \$opt_V, "version" => \$opt_V, + "h" => \$opt_h, "help" => \$opt_h, + "v=i" => \$snmp_version, "snmp_version=i" => \$snmp_version, + "C=s" => \$community,"community=s" => \$community, + "L=s" => \$seclevel, "seclevel=s" => \$seclevel, + "a=s" => \$authproto, "authproto=s" => \$authproto, + "U=s" => \$secname, "secname=s" => \$secname, + "A=s" => \$authpass, "authpass=s" => \$authpass, + "X=s" => \$privpass, "privpass=s" => \$privpass, + "c=s" => \$context, "context=s" => \$context, + "p=i" =>\$port, "port=i" => \$port, + "H=s" => \$hostname, "hostname=s" => \$hostname, + "I" => \$ifXTable, "ifmib" => \$ifXTable, + "x:s" => \$opt_x, "exclude:s" => \$opt_x, + "u=s" => \$opt_u, "unused_ports=s" => \$opt_u, + "M=i" => \$maxmsgsize, "maxmsgsize=i" => \$maxmsgsize, + "t=i" => \$timeout, "timeout=i" => \$timeout, + ); + + if ($status == 0){ + print_help() ; + exit $ERRORS{'OK'}; + } + if ($opt_V) { + print_revision($PROGNAME,'$Revision: 884 $ '); + exit $ERRORS{'OK'}; + } + + if ($opt_h) { + print_help(); + exit $ERRORS{'OK'}; + } + + unless (defined $timeout) { + $timeout = $TIMEOUT; + } + + if ($snmp_version =~ /3/ ) { + # Must define a security level even though default is noAuthNoPriv + # v3 requires a security username + if (defined $seclevel && defined $secname) { + + # Must define a security level even though defualt is noAuthNoPriv + unless ($seclevel eq ('noAuthNoPriv' || 'authNoPriv' || 'authPriv' ) ) { + usage(); + exit $ERRORS{"UNKNOWN"}; + } + + # Authentication wanted + if ($seclevel eq ('authNoPriv' || 'authPriv') ) { + + unless ($authproto eq ('MD5' || 'SHA1') ) { + usage(); + exit $ERRORS{"UNKNOWN"}; + } + + if ( !defined $authpass) { + usage(); + exit $ERRORS{"UNKNOWN"}; + }else{ + if ($authpass =~ /^0x/ ) { + $auth = "-authkey => $authpass" ; + }else{ + $auth = "-authpassword => $authpass"; + } + } + + } + + # Privacy (DES encryption) wanted + if ($seclevel eq 'authPriv' ) { + if (! defined $privpass) { + usage(); + exit $ERRORS{"UNKNOWN"}; + }else{ + if ($privpass =~ /^0x/){ + $priv = "-privkey => $privpass"; + }else{ + $priv = "-privpassword => $privpass"; + } + } + } + + # Context name defined or default + + unless ( defined $context) { + $context = ""; + } + + + + }else { + usage(); + exit $ERRORS{'UNKNOWN'}; ; + } + } # end snmpv3 + + # for snmp v1 & v2c we default to community = "public" + + # Excluded interfaces types (ifType) (backup interfaces, dial-on demand interfaces, PPP interfaces + if (defined $opt_x) { + my @x = split(/,/, $opt_x); + if ( @x) { + foreach $key (@x){ + $excluded{$key} = 1; + } + } + # Matthew Martin In the original this else was nested wrong and never matched + } else { + $excluded{23} = 1; # default PPP(23) if empty list - note (AIX seems to think PPP is 22 according to a post) + $excluded{24} = 1; # mgmart6, Tuesday August 14, 2007, Nokia, ifDescr.6 = loop0c0 Software Loopback Layer -- ifType.6 = softwareLoopback(24) (taken from a Nokia IP330) + $excluded{25} = 1; # mgmart6, Tuesday August 14, 2007, Nokia, ifDescr.1 = pppoe0 Ethernet Layer -- ifType.1 = eon(25) (from a Nokia IP350) + } + + # Excluded interface ports (ifIndex) - management reasons + if ($opt_u) { + @unused_ports = split(/,/,$opt_u); + foreach $key (@unused_ports) { + $ifStatus{$key}{'notInUse'}++ ; + } + } + + if (! utils::is_hostname($hostname)){ + usage(); + exit $ERRORS{"UNKNOWN"}; + } + + # create SNMP session handle based on options passed. + + if ( ! $snmp_version ) { + $snmp_version =1 ; + }else{ + if ( $snmp_version =~ /[12]/ ) { + + ($session, $error) = Net::SNMP->session( + -hostname => $hostname, + -community => $community, + -port => $port, + -version => $snmp_version, + -maxmsgsize => $maxmsgsize + ); + + if (!defined($session)) { + $state='UNKNOWN'; + $answer=$error; + print ("$state: $answer"); + exit $ERRORS{$state}; + } + + + }elsif ( $snmp_version =~ /3/ ) { + + if ($seclevel eq 'noAuthNoPriv') { + ($session, $error) = Net::SNMP->session( + -hostname => $hostname, + -port => $port, + -version => $snmp_version, + -username => $secname, + ); + + }elsif ( $seclevel eq 'authNoPriv' ) { + ($session, $error) = Net::SNMP->session( + -hostname => $hostname, + -port => $port, + -version => $snmp_version, + -username => $secname, + -authprotocol => $authproto, + $auth + ); + }elsif ($seclevel eq 'authPriv' ) { + ($session, $error) = Net::SNMP->session( + -hostname => $hostname, + -port => $port, + -version => $snmp_version, + -username => $secname, + -authprotocol => $authproto, + $auth, + $priv + ); + } + + + if (!defined($session)) { + $state='UNKNOWN'; + $answer=$error; + print ("$state: $answer"); + exit $ERRORS{$state}; + } + + }else{ + $state='UNKNOWN'; + print ("$state: No support for SNMP v$snmp_version yet\n"); + exit $ERRORS{$state}; + } +} + +return $ERRORS{"OK"}; + +} -- cgit v1.2.3-74-g34f1