migrated check_ifoperstatus to standard plugin

git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@28 f882894a-f735-0410-b71e-b25c423dba1c

plugins-scripts/Makefile.am

@@ -6,11 +6,11 @@ VPATH=$(top_srcdir) $(top_srcdir)/plugins-scripts $(top_srcdir)/plugins-scripts/
 
 libexec_SCRIPTS = check_breeze check_disk_smb check_flexlm check_ircd \
 	check_log check_ntp check_oracle check_rpc check_sensors check_wave \
-	check_ifstatus utils.sh utils.pm
+	check_ifstatus check_ifoperstatus utils.sh utils.pm
 
 EXTRA_DIST=check_breeze.pl check_disk_smb.pl check_flexlm.pl check_ircd.pl \
 	check_log.sh check_ntp.pl check_oracle.sh check_rpc.pl check_sensors.sh \
-	check_ifstatus.pl check_wave.pl utils.sh.in utils.pm.in t
+	check_ifstatus.pl check_ifoperstatus.pl check_wave.pl utils.sh.in utils.pm.in t
 
 TESTS_ENVIRONMENT=perl -I $(top_builddir) -I $(top_srcdir)
 

plugins-scripts/check_ifoperstatus.pl

@@ -0,0 +1,255 @@
+#!/usr/local/bin/perl -w
+#
+# check_ifoperstatus.pl - nagios plugin 
+#
+# Copyright (C) 2000 Christoph Kron
+# Modified 5/2002 to conform to updated Nagios Plugin Guidelines
+# Added support for named interfaces per Valdimir Ivaschenko (S. Ghosh)
+#
+# 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
+# $Id$
+
+use POSIX;
+use strict;
+use lib utils.pm ;
+use utils qw($TIMEOUT %ERRORS &print_revision &support);
+
+use Net::SNMP;
+use Getopt::Long;
+&Getopt::Long::config('bundling');
+
+my $PROGNAME = "check_ifoperstatus";
+my $status;
+my %ifOperStatus = 	('1','up',
+			 '2','down',
+			 '3','testing',
+			 '4','unknown',
+			 '5','dormant',
+			 '6','notPresent');
+
+my $state = "UNKNOWN";
+my $answer = "";
+my $snmpkey = 0;
+my $community = "public";
+my $port = 161;
+my @snmpoids;
+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 $hostname;
+my $session;
+my $error;
+my $response;
+my $snmp_version = 1 ;
+my $ifXTable;
+my $opt_h ;
+my $opt_V ;
+my $ifdescr;
+my $key;
+
+
+
+# Just in case of problems, let's not hang Nagios
+$SIG{'ALRM'} = sub {
+     print ("ERROR: No snmp response from $hostname (alarm)\n");
+     exit $ERRORS{"UNKNOWN"};
+};
+#alarm($TIMEOUT);
+
+
+$status = GetOptions(
+			"V"   => \$opt_V, "version"    => \$opt_V,
+			"h"   => \$opt_h, "help"       => \$opt_h,
+			"v=i" => \$snmp_version, "snmp_version=i"  => \$snmp_version,
+			"C=s" =>\$community, "community=s" => \$community,
+			"k=i" =>\$snmpkey, "key=i",\$snmpkey,
+			"d=s" =>\$ifdescr, "descr=s" => \$ifdescr,
+			"p=i" =>\$port,  "port=i",\$port,
+			"H=s" => \$hostname, "hostname=s" => \$hostname,
+			"I"	  => \$ifXTable, "ifmib" => \$ifXTable);
+
+
+				
+if ($status == 0)
+{
+	print_help();
+	exit $ERRORS{'OK'};
+}
+  
+if ($opt_V) {
+	print_revision($PROGNAME,'$Revision$ ');
+	exit $ERRORS{'OK'};
+}
+
+if ($opt_h) {
+	print_help();
+	exit $ERRORS{'OK'};
+}
+
+if (! utils::is_hostname($hostname)){
+	usage();
+	exit $ERRORS{"UNKNOWN"};
+}
+
+
+if ( $snmp_version =~ /[12]/ ) {
+   ($session, $error) = Net::SNMP->session(
+		-hostname  => $hostname,
+		-community => $community,
+		-port      => $port,
+		-version	=> $snmp_version
+	);
+
+	if (!defined($session)) {
+		$state='UNKNOWN';
+		$answer=$error;
+		print ("$state: $answer");
+		exit $ERRORS{$state};
+	}
+}elsif ( $snmp_version =~ /3/ ) {
+	$state='UNKNOWN';
+	print ("$state: No support for SNMP v3 yet\n");
+	exit $ERRORS{$state};
+}else{
+	$state='UNKNOWN';
+	print ("$state: No support for SNMP v$snmp_version yet\n");
+	exit $ERRORS{$state};
+}
+
+if (defined $ifdescr) {
+	# escape "/" in ifdescr - very common in the Cisco world
+	$ifdescr =~ s/\//\\\//g;
+
+	$status=fetch_ifdescr();  # if using on device with large number of interfaces
+							  # recommend use of SNMP v2 (get-bulk)
+	if ($status==0) {
+		$state = "UNKNOWN";
+		printf "$state: could not retrive ifIndex - $status-$snmpkey\n";
+		$session->close;
+		exit $ERRORS{$state};
+	}
+}
+if ( $snmpkey == 0 ) {
+	printf "ifIndex key cannot be 0\n";
+	usage();
+	exit $ERRORS{'UNKNOWN'};
+}
+
+   $snmpIfOperStatus = '1.3.6.1.2.1.2.2.1.8' . "." . $snmpkey;
+   $snmpIfDescr = '1.3.6.1.2.1.2.2.1.2' . "." . $snmpkey;
+   $snmpIfAlias = '1.3.6.1.2.1.31.1.1.1.18' . "." . $snmpkey ; 
+
+
+push(@snmpoids,$snmpIfOperStatus);
+push(@snmpoids,$snmpIfDescr);
+push(@snmpoids,$snmpIfAlias) if (defined $ifXTable) ;
+
+   if (!defined($response = $session->get_request(@snmpoids))) {
+      $answer=$session->error;
+      $session->close;
+      $state = 'CRITICAL';
+      print ("$state: $answer for ifIndex $snmpkey\n");
+      exit $ERRORS{$state};
+   }
+
+   $answer = sprintf("host '%s', %s(%s) is %s\n", 
+      $hostname, 
+      $response->{$snmpIfDescr},
+      $snmpkey, 
+      $ifOperStatus{$response->{$snmpIfOperStatus}}
+   );
+
+   $session->close;
+
+   if ( $response->{$snmpIfOperStatus} == 1 ) {
+      $state = 'OK';
+   }
+   else {
+	$state = 'CRITICAL';
+   }
+
+print ("$state: $answer");
+exit $ERRORS{$state};
+
+
+sub fetch_ifdescr {
+	if (!defined ($response = $session->get_table($snmpIfDescr))) {
+		$answer=$session->error;
+		$session->close;
+		$state = 'CRITICAL';
+		printf ("$state: $answer for $snmpIfDescr  with snmp version $snmp_version\n");
+		$session->close;
+		exit $ERRORS{$state};
+	}
+	
+	foreach $key ( keys %{$response}) {
+		if ($response->{$key} =~ /$ifdescr/) {
+			$key =~ /.*\.(\d+)$/;
+			$snmpkey = $1;
+			#print "$ifdescr = $key / $snmpkey \n";  #debug
+		}
+	}
+	unless (defined $snmpkey) {
+		$session->close;
+		$state = 'CRITICAL';
+		printf "$state: Could not match $ifdescr on $hostname\n";
+		exit $ERRORS{$state};
+	}
+	
+	return $snmpkey;
+}
+
+sub usage {
+  printf "\nMissing arguments!\n";
+  printf "\n";
+  printf "usage: \n";
+  printf "check_ifoperstatus -k <IF_KEY> -H <HOSTNAME> [-C <community>]\n";
+  printf "Copyright (C) 2000 Christoph Kron\n";
+  printf "check_ifoperstatus.pl comes with ABSOLUTELY NO WARRANTY\n";
+  printf "This programm is licensed under the terms of the ";
+  printf "GNU General Public License\n(check source code for details)\n";
+  printf "\n\n";
+  exit $ERRORS{"UNKNOWN"};
+}
+
+sub print_help {
+	printf "check_ifoperstatus plugin for Nagios monitors operational \n";
+  	printf "status of a particular network interface on the target host\n";
+	printf "\nUsage:\n";
+	printf "   -H (--hostname)   Hostname to query - (required)\n";
+	printf "   -C (--community)  SNMP read community (defaults to public,\n";
+	printf "                     used with SNMP v1 and v2c\n";
+	printf "   -v (--snmp_version)  1 for SNMP v1 (default)\n";
+	printf "                        2 for SNMP v2c\n";
+	printf "                        SNMP v2c will use get_bulk for less overhead\n";
+	printf "                        if monitoring with -d\n";
+	printf "   -k (--key)        SNMP ifIndex value\n";
+	printf "   -d (--descr)      SNMP ifDescr value\n";
+	printf "   -p (--port)       SNMP port (default 161)\n";
+	printf "   -I (--ifmib)      Agent supports IFMIB ifXTable.  Do not use if\n";
+	printf "                     you don't know what this is.\n";
+	printf "   -V (--version)    Plugin version\n";
+	printf "   -h (--help)       usage help \n\n";
+	printf " -k or -d must be specified\n\n";
+	print_revision($PROGNAME, '$Revision$');
+	
+}