nagios-plugins/check_snmp/check_snmp_connectivity

#!/usr/bin/perl
#
#
# AUTHORS:
#	Pall Sigurdsson <palli@ok.is>
#
#
#    This script 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 script 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 script; if not, write to the Free Software
#    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
#

use lib qw ( /usr/local/nagios/perl/lib );
use Net::SNMP;
use Getopt::Std;

$script         = "check_snmp_description";
$script_version = "1.0.0";
# SNMP options
$version = "2c";
$timeout = 2;

# Oids to use
$oid_description   = ".1.3.6.1.2.1.1.1.0";
$oid_uptime        =".1.3.6.1.2.1.1.3.0";	
$oid_contact	   = ".1.3.6.1.2.1.1.4.0";
$oid_name	   = ".1.3.6.1.2.1.1.5.0";
$oid_location      = ".1.3.6.1.2.1.1.6.0";

# Default values
$description = "";
$uptime = "";
$contact = "";
$name = "";
$location = "";


$hostname = "10.199.7.59";		     # Default hostname
$returnstring = "";
$community      = "public";                  # Default community string
#$configfilepath = "/usr/local/nagios/etc";

# Do we have enough information?
if ( @ARGV < 1 ) {
    print "Too few arguments\n";
    usage();
}

getopts("hH:C:i:w:c:");
if ($opt_h) {
    usage();
    exit(0);
}
if ($opt_H) {
    $hostname = $opt_H;

    # print "Hostname $opt_H\n";
}
else {
    print "No hostname specified\n";
    usage();
    exit(0);
}
if ($opt_C) {
    $community = $opt_C;
}
if ($opt_w) {
    $warning = $opt_w;
}
if ($opt_c) {
    $critical = $opt_c;
}
else {

    # print "Using community $community\n";
}

# Create the SNMP session

$version = "1";
( $s, $e ) = Net::SNMP->session(
    -community => $community,
    -hostname  => $hostname,
    -version   => $version,
    -timeout   => $timeout,
);

if ( !defined( $s->get_request($oid_description) ) ) {

    # If we can't connect using SNMPv1 lets try as SNMPv2
    $s->close();
    sleep 0.5;
    $version = "2c";
    ( $s, $e ) = Net::SNMP->session(
        -community => $community,
        -hostname  => $hostname,
        -version   => $version,
        -timeout   => $timeout,
    );
    if ( !defined( $s->get_request($oid_sysDescr) ) ) {
        print "Agent not responding, tried SNMP v1 and v2 (IP=$hostname, Community=$community)\n";
        exit(1);
    }
    else {
        foreach ( $s->var_bind_names() ) {
            $description = $s->var_bind_list()->{$_};
        }
    }

}
    else {
        foreach ( $s->var_bind_names() ) {
            $description = $s->var_bind_list()->{$_};
        }
    }
# Get Location
    if ( !defined( $s->get_request($oid_location) ) ) {
    }
    else {
        foreach ( $s->var_bind_names() ) {
            $location = $s->var_bind_list()->{$_};
        }
    }

# Get Contact
    if ( !defined( $s->get_request($oid_contact) ) ) {
    }
    else {
        foreach ( $s->var_bind_names() ) {
            $contact = $s->var_bind_list()->{$_};
        }
    }

# Get name
    if ( !defined( $s->get_request($oid_name) ) ) {
    }
    else {
        foreach ( $s->var_bind_names() ) {
            $name = $s->var_bind_list()->{$_};
        }
    }

# Get Uptime
    if ( !defined( $s->get_request($oid_uptime) ) ) {
    }
    else {
        foreach ( $s->var_bind_names() ) {
            $uptime = $s->var_bind_list()->{$_};
        }
    }

print "OK - SNMP is working properly \n\n";
print "Name: $name \n";
print "Contact: $contact \n";
print "Location: $location \n";
print "Description: $description \n";
print "Uptime: $uptime \n";
exit 0;