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|
#!/usr/bin/perl -w
#
# Checks HP printers for supplies
#
# Copyright (c) 2006 Peter Palfrader <peter@palfrader.org>
#
#
# Based on snmp__supplies, a munin plugin for graphing supplies:
#
# Copyright (C) Rune Nordboe Skillingstad, Sveinung Marvik
# Reports supplies (ie. toner level) on printers adhering to RFC1759
#
# 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; version 2 dated June,
# 1991.
#
# 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.
use strict;
use English;
use Net::SNMP;
use Getopt::Long;
my $VERSION = '$Revision$';
# nagios exit codes
my %CODE = (
'UNDEF' => -1,
'OK' => 0,
'WARNING' => 1,
'CRITICAL' => 2,
'UNKNOWN' => 3
);
my $EXITCODE = 'UNDEF';
my $MESSAGE = {};
my $params = {
'port' => 161,
'community' => 'public',
'timeout' => 10,
'warning' => 15,
'critical' => 5,
'verbose' => 0,
};
my %cache;
my %supplies;
my $session;
sub version($$) {
my ($fd, $exit) = @_;
print $fd "nagios-check-printer-supplies $VERSION\n";
print $fd "Copyright (c) 2006 Peter Palfrader <peter\@palfrader.org>\n";
print $fd "Also Copyright Rune Nordboe Skillingstad, Sveinung Marvik\n";
exit 0 if $exit;
};
sub help($$) {
my ($exitcode, $fd) = @_;
version ($fd, 0);
print $fd "Usage: $PROGRAM_NAME --version\n";
print $fd "Usage: $PROGRAM_NAME [--verbose [--verbose ..]] [--community <community>] [--timeout <timeout>] [--port <port>] [--critical <critical>] [--warning <warning>] --host <hostname>\n";
exit $exitcode
};
sub record($$) {
my ($newexit, $msg) = @_;
die "code $newexit not defined" unless defined $CODE{$newexit};
if ($CODE{$newexit} > $CODE{$EXITCODE}) {
$EXITCODE = $newexit;
};
push @{$MESSAGE->{$newexit}}, $msg
}
sub get_multiple($$$) {
my $handle = shift;
my $oid = shift;
my $type = shift;
print STDERR "# Getting table $oid...\n" if ($params->{'verbose'} > 0);
my $response = $handle->get_table($oid);
if(!defined($response)) {
record 'UKNOWN', "Did not get a respons when asking for $handle";
} else {
for my $key (keys(%{$response})) {
$supplies{keyname($key)}{$type} = $response->{$key};
print STDERR "$key -> ".$response->{$key}."\n" if ($params->{'verbose'} > 0);
}
}
}
sub keyname($) {
my $key = shift;
return $cache{$key} if (defined $cache{$key});
my $tkey = $key;
$tkey =~ s/.*(\d+\.\d+)$/$1/;
$tkey =~ s/\./_/;
$cache{$key} = $tkey;
return $tkey;
}
Getopt::Long::config('bundling');
if (!GetOptions (
'h|help' => \$params->{'help'},
'V|version' => \$params->{'version'},
'v|verbose+' => \$params->{'verbose'},
'H|host=s' => \$params->{'host'},
'p|port=i' => \$params->{'port'},
'C|community=s' => \$params->{'community'},
't|timeout=i' => \$params->{'timeout'},
'c|critical=i' => \$params->{'critical'},
'w|warning=i' => \$params->{'warning'},
)) {
die ("$PROGRAM_NAME: Usage: $PROGRAM_NAME [-fwhv]\n");
};
version(*STDOUT, 1) if $params->{'version'};
help(0, *STDOUT) if $params->{'help'};
help(1, *STDERR) unless defined $params->{'host'};
help(1, *STDERR) if scalar @ARGV > 0;
my $error;
($session, $error) = Net::SNMP->session(
-hostname => $params->{'host'},
-community => $params->{'community'},
-port => $params->{'port'},
-timeout => $params->{'timeout'}
);
if(!defined ($session)) {
die "Croaking: $error";
}
get_multiple ($session, "1.3.6.1.2.1.43.11.1.1.6", "desc");
get_multiple ($session, "1.3.6.1.2.1.43.11.1.1.8", "max");
get_multiple ($session, "1.3.6.1.2.1.43.11.1.1.9", "level");
# Get rid of supply-levels reporting negative values
{
for my $supply (keys (%supplies)) {
if ($supplies{$supply}{level} < 0) {
delete $supplies{$supply};
print STDERR "# Deleting entry $supply: supply level unknown.\n" if ($params->{'verbose'} > 0);
}
}
}
# Values
if (keys(%supplies) > 0) {
for my $supply (keys(%supplies)) {
my $level = ($supplies{$supply}{level}/$supplies{$supply}{max})*100;
my $desc = $supplies{$supply}{desc};
$level = sprintf("%.2f", $level);
if ($level < $params->{'critical'}) {
record 'CRITICAL', "$desc is at $level";
} elsif ($level < $params->{'warning'}) {
record 'WARNING', "$desc is at $level";
} else {
record 'OK', "$desc is at $level";
}
}
}
if ($EXITCODE eq 'UNDEF') {
record 'UNKNOWN', "no data found"
}
my @msg;
my $message = '';
for my $i (qw{UNKNOWN CRITICAL WARNING OK}) {
push @msg, @{$MESSAGE->{$i}} if defined $MESSAGE->{$i};
};
print $EXITCODE, ': ', join('; ', @msg). "\n";
exit $CODE{$EXITCODE};
|
