643 lines
17 KiB
Text
643 lines
17 KiB
Text
|
#!/usr/bin/perl
|
||
|
|
|
||
|
|
# nagios: -epn
|
||
|
|
|
||
|
|
package main;
|
||
|
|
|
||
|
|
# check_rbl is a Nagios plugin to check if an SMTP server is black- or
|
||
|
|
# white- listed
|
||
|
|
#
|
||
|
|
# See the INSTALL file for installation instructions
|
||
|
|
#
|
||
|
|
# Copyright (c) 2009-2019 Matteo Corti <matteo@corti.li>
|
||
|
|
# Copyright (c) 2009 ETH Zurich.
|
||
|
|
# Copyright (c) 2010 Elan Ruusamae <glen@delfi.ee>.
|
||
|
|
#
|
||
|
|
# This module is free software; you can redistribute it and/or modify it
|
||
|
|
# under the terms of GNU general public license (gpl) version 3.
|
||
|
|
# See the LICENSE file for details.
|
||
|
|
|
||
|
|
use strict;
|
||
|
|
use warnings;
|
||
|
|
|
||
|
|
our $VERSION = '1.5.4';
|
||
|
|
|
||
|
|
use Data::Validate::Domain qw(is_hostname);
|
||
|
|
use Data::Validate::IP qw(is_ipv4 is_ipv6);
|
||
|
|
use IO::Select;
|
||
|
|
use Net::DNS;
|
||
|
|
use Net::IP qw(ip_expand_address);
|
||
|
|
use Readonly;
|
||
|
|
use English qw(-no_match_vars);
|
||
|
|
|
||
|
|
use Monitoring::Plugin;
|
||
|
|
use Monitoring::Plugin::Threshold;
|
||
|
|
use Monitoring::Plugin::Getopt;
|
||
|
|
|
||
|
|
Readonly our $DEFAULT_TIMEOUT => 15;
|
||
|
|
Readonly our $DEFAULT_RETRIES => 4;
|
||
|
|
Readonly our $DEFAULT_WORKERS => 20;
|
||
|
|
Readonly our $DEFAULT_QUERY_TIMEOUT => 15;
|
||
|
|
Readonly our $DEFAULT_APPEND_STRING => q{};
|
||
|
|
|
||
|
|
# IMPORTANT: Nagios plugins could be executed using embedded perl in this case
|
||
|
|
# the main routine would be executed as a subroutine and all the
|
||
|
|
# declared subroutines would therefore be inner subroutines
|
||
|
|
# This will cause all the global lexical variables not to stay shared
|
||
|
|
# in the subroutines!
|
||
|
|
#
|
||
|
|
# All variables are therefore declared as package variables...
|
||
|
|
#
|
||
|
|
|
||
|
|
## no critic (ProhibitPackageVars)
|
||
|
|
our ( @listed, @timeouts, $options, $plugin, $threshold, $timeouts_string, );
|
||
|
|
|
||
|
|
##############################################################################
|
||
|
|
# Usage : debug("some message string")
|
||
|
|
# Purpose : write a message if the debugging option was specified
|
||
|
|
# Returns : n/a
|
||
|
|
# Arguments : message : message string
|
||
|
|
# Throws : n/a
|
||
|
|
# Comments : n/a
|
||
|
|
# See also : n/a
|
||
|
|
sub debug {
|
||
|
|
|
||
|
|
# arguments
|
||
|
|
my $message = shift;
|
||
|
|
|
||
|
|
if ( !defined $message ) {
|
||
|
|
$plugin->nagios_exit( Monitoring::Plugin->UNKNOWN,
|
||
|
|
q{Internal error: not enough parameters for 'debug'} );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( $options && $options->debug() ) {
|
||
|
|
## no critic (RequireCheckedSyscall)
|
||
|
|
print "[DBG] $message\n";
|
||
|
|
}
|
||
|
|
|
||
|
|
return;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
##############################################################################
|
||
|
|
# Usage : verbose("some message string", $optional_verbosity_level);
|
||
|
|
# Purpose : write a message if the verbosity level is high enough
|
||
|
|
# Returns : n/a
|
||
|
|
# Arguments : message : message string
|
||
|
|
# level : options verbosity level
|
||
|
|
# Throws : n/a
|
||
|
|
# Comments : n/a
|
||
|
|
# See also : n/a
|
||
|
|
sub verbose {
|
||
|
|
|
||
|
|
# arguments
|
||
|
|
my $message = shift;
|
||
|
|
my $level = shift;
|
||
|
|
|
||
|
|
if ( !defined $message ) {
|
||
|
|
$plugin->nagios_exit( Monitoring::Plugin->UNKNOWN,
|
||
|
|
q{Internal error: not enough parameters for 'verbose'} );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( !defined $level ) {
|
||
|
|
$level = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( $level < $options->verbose ) {
|
||
|
|
if ( !print $message ) {
|
||
|
|
$plugin->nagios_exit( Monitoring::Plugin->UNKNOWN,
|
||
|
|
'Error: cannot write to STDOUT' );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
# the script is declared as a package so that it can be unit tested
|
||
|
|
# but it should not be used as a module
|
||
|
|
if ( !caller ) {
|
||
|
|
run();
|
||
|
|
}
|
||
|
|
|
||
|
|
##############################################################################
|
||
|
|
# Usage : my $res = init_dns_resolver( $retries )
|
||
|
|
# Purpose : Initializes a new DNS resolver
|
||
|
|
# Arguments : retries : number of retries
|
||
|
|
# Returns : The newly created resolver
|
||
|
|
# See also : Perl Net::DNS
|
||
|
|
sub init_dns_resolver {
|
||
|
|
|
||
|
|
my $retries = shift;
|
||
|
|
|
||
|
|
my $res = Net::DNS::Resolver->new();
|
||
|
|
if ( $res->can('force_v4') ) {
|
||
|
|
$res->force_v4(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($retries) {
|
||
|
|
$res->retry($retries);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $res;
|
||
|
|
}
|
||
|
|
|
||
|
|
##############################################################################
|
||
|
|
# Usage : mdns(\@addresses, $callback)
|
||
|
|
# Purpose : Perform multiple DNS lookups in parallel
|
||
|
|
# Returns : n/a
|
||
|
|
# See also : Perl Net::DNS module mresolv in examples
|
||
|
|
#
|
||
|
|
# Resolves all IPs in C<@addresses> in parallel.
|
||
|
|
# If answer is found C<$callback> is called with arguments as: $name, $host.
|
||
|
|
#
|
||
|
|
# Author: Elan Ruusamae <glen@delfi.ee>, (c) 1999-2010
|
||
|
|
|
||
|
|
## no critic (ProhibitExcessComplexity)
|
||
|
|
sub mdns {
|
||
|
|
|
||
|
|
my ( $data, $callback ) = @_;
|
||
|
|
|
||
|
|
# number of requests to have outstanding at any time
|
||
|
|
my $workers = $options ? $options->workers() : 1;
|
||
|
|
|
||
|
|
# timeout per query (seconds)
|
||
|
|
my $timeout = $options ? $options->get('query-timeout') : $DEFAULT_TIMEOUT;
|
||
|
|
my $res = init_dns_resolver( $options ? $options->retry() : 0 );
|
||
|
|
|
||
|
|
my $sel = IO::Select->new();
|
||
|
|
my $eof = 0;
|
||
|
|
|
||
|
|
my @addrs = @{$data};
|
||
|
|
|
||
|
|
my %addrs;
|
||
|
|
while (1) {
|
||
|
|
|
||
|
|
#----------------------------------------------------------------------
|
||
|
|
# Read names until we've filled our quota of outstanding requests.
|
||
|
|
#----------------------------------------------------------------------
|
||
|
|
|
||
|
|
while ( !$eof && $sel->count() < $workers ) {
|
||
|
|
|
||
|
|
my $name = shift @addrs;
|
||
|
|
|
||
|
|
if ( !defined $name ) {
|
||
|
|
debug('reading...EOF.');
|
||
|
|
$eof = 1;
|
||
|
|
last;
|
||
|
|
}
|
||
|
|
|
||
|
|
debug("reading...$name");
|
||
|
|
|
||
|
|
my $sock = $res->bgsend($name);
|
||
|
|
|
||
|
|
if ( !defined $sock ) {
|
||
|
|
verbose 'DNS query error: ' . $res->errorstring;
|
||
|
|
verbose "Skipping $name";
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
|
||
|
|
# we store in a hash the query we made, as parsing it back from
|
||
|
|
# response gives different ip for ips with multiple hosts
|
||
|
|
$addrs{$sock} = $name;
|
||
|
|
$sel->add($sock);
|
||
|
|
debug( "name = $name, outstanding = " . $sel->count() );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
#----------------------------------------------------------------------
|
||
|
|
# Wait for any replies. Remove any replies from the outstanding pool.
|
||
|
|
#----------------------------------------------------------------------
|
||
|
|
|
||
|
|
my @ready;
|
||
|
|
my $timed_out = 1;
|
||
|
|
|
||
|
|
debug('waiting for replies');
|
||
|
|
|
||
|
|
@ready = $sel->can_read($timeout);
|
||
|
|
|
||
|
|
while (@ready) {
|
||
|
|
|
||
|
|
$timed_out = 0;
|
||
|
|
|
||
|
|
debug( 'replies received: ' . scalar @ready );
|
||
|
|
|
||
|
|
foreach my $sock (@ready) {
|
||
|
|
|
||
|
|
debug('handling a reply');
|
||
|
|
|
||
|
|
my $addr = $addrs{$sock};
|
||
|
|
delete $addrs{$sock};
|
||
|
|
$sel->remove($sock);
|
||
|
|
|
||
|
|
my $ans = $res->bgread($sock);
|
||
|
|
|
||
|
|
my $host;
|
||
|
|
|
||
|
|
if ($ans) {
|
||
|
|
|
||
|
|
foreach my $rr ( $ans->answer ) {
|
||
|
|
|
||
|
|
debug('Processing answer');
|
||
|
|
|
||
|
|
## no critic(ProhibitDeepNests)
|
||
|
|
if ( !( $rr->type eq 'A' ) ) {
|
||
|
|
next;
|
||
|
|
}
|
||
|
|
|
||
|
|
$host = $rr->address;
|
||
|
|
|
||
|
|
debug("host = $host");
|
||
|
|
|
||
|
|
# take just the first answer
|
||
|
|
last;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
|
||
|
|
debug( 'no answer: ' . $res->errorstring() );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( defined $host ) {
|
||
|
|
|
||
|
|
debug("callback( $addr, $host )");
|
||
|
|
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
|
||
|
|
debug("callback( $addr, <undefined> )");
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
&{$callback}( $addr, $host );
|
||
|
|
}
|
||
|
|
|
||
|
|
@ready = $sel->can_read(0);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
#----------------------------------------------------------------------
|
||
|
|
# If we timed out waiting for replies, remove all entries from the
|
||
|
|
# outstanding pool.
|
||
|
|
#----------------------------------------------------------------------
|
||
|
|
|
||
|
|
if ($timed_out) {
|
||
|
|
|
||
|
|
debug('timeout: clearing the outstanding pool.');
|
||
|
|
|
||
|
|
foreach my $sock ( $sel->handles() ) {
|
||
|
|
my $addr = $addrs{$sock};
|
||
|
|
delete $addrs{$sock};
|
||
|
|
$sel->remove($sock);
|
||
|
|
|
||
|
|
# callback for hosts that timed out
|
||
|
|
&{$callback}( $addr, q{} );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
debug( 'outstanding = ' . $sel->count() . ", eof = $eof" );
|
||
|
|
|
||
|
|
#----------------------------------------------------------------------
|
||
|
|
# We're done if there are no outstanding queries and we've read EOF.
|
||
|
|
#----------------------------------------------------------------------
|
||
|
|
|
||
|
|
last if ( $sel->count() == 0 ) && $eof;
|
||
|
|
}
|
||
|
|
|
||
|
|
return;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
##############################################################################
|
||
|
|
# Usage : validate( $hostname );
|
||
|
|
# Purpose : check if an IP address or host name is valid
|
||
|
|
# Returns : the IP address corresponding to $hostname
|
||
|
|
# Arguments : n/a
|
||
|
|
# Throws : an UNKNOWN error if the argument is not valid
|
||
|
|
# Comments : n/a
|
||
|
|
# See also : n/a
|
||
|
|
sub validate {
|
||
|
|
|
||
|
|
my $hostname = shift;
|
||
|
|
my $ip = $hostname;
|
||
|
|
|
||
|
|
debug("validate($hostname, $ip)");
|
||
|
|
|
||
|
|
if ( !is_ipv4($hostname) && !is_ipv6($hostname) ) {
|
||
|
|
|
||
|
|
if ( is_hostname($hostname) ) {
|
||
|
|
|
||
|
|
mdns(
|
||
|
|
[$hostname],
|
||
|
|
sub {
|
||
|
|
my ( $addr, $host ) = @_;
|
||
|
|
$ip = $host;
|
||
|
|
}
|
||
|
|
);
|
||
|
|
|
||
|
|
if ( !$ip ) {
|
||
|
|
$plugin->nagios_exit(
|
||
|
|
Monitoring::Plugin->UNKNOWN,
|
||
|
|
'Cannot resolve ' . $hostname
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( !$ip ) {
|
||
|
|
$plugin->nagios_exit( Monitoring::Plugin->UNKNOWN,
|
||
|
|
'Cannot resolve ' . $hostname );
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( is_ipv6($ip) ) {
|
||
|
|
## no critic (ProhibitMagicNumbers)
|
||
|
|
$ip = Net::IP::ip_expand_address( $ip, 6 );
|
||
|
|
}
|
||
|
|
|
||
|
|
return $ip;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
##############################################################################
|
||
|
|
# Usage : run();
|
||
|
|
# Purpose : main method
|
||
|
|
# Returns : n/a
|
||
|
|
# Arguments : n/a
|
||
|
|
# Throws : n/a
|
||
|
|
# Comments : n/a
|
||
|
|
# See also : n/a
|
||
|
|
|
||
|
|
## no critic (ProhibitExcessComplexity)
|
||
|
|
sub run {
|
||
|
|
|
||
|
|
################################################################################
|
||
|
|
# Initialization
|
||
|
|
|
||
|
|
$plugin = Monitoring::Plugin->new( shortname => 'CHECK_RBL' );
|
||
|
|
|
||
|
|
my $time = time;
|
||
|
|
|
||
|
|
########################
|
||
|
|
# Command line arguments
|
||
|
|
|
||
|
|
$options = Monitoring::Plugin::Getopt->new(
|
||
|
|
usage => 'Usage: %s [OPTIONS]',
|
||
|
|
version => $VERSION,
|
||
|
|
url => 'http://matteocorti.github.io/check_rbl/',
|
||
|
|
blurb => 'Check SMTP black- or white- listing status',
|
||
|
|
);
|
||
|
|
|
||
|
|
$options->arg(
|
||
|
|
spec => 'critical|c=i',
|
||
|
|
help => 'Number of blacklisting servers for a critical warning',
|
||
|
|
required => 0,
|
||
|
|
default => 1,
|
||
|
|
);
|
||
|
|
|
||
|
|
$options->arg(
|
||
|
|
spec => 'warning|w=i',
|
||
|
|
help => 'Number of blacklisting servers for a warning',
|
||
|
|
required => 0,
|
||
|
|
default => 1,
|
||
|
|
);
|
||
|
|
|
||
|
|
$options->arg(
|
||
|
|
spec => 'debug|d',
|
||
|
|
help => 'Prints debugging information',
|
||
|
|
required => 0,
|
||
|
|
default => 0,
|
||
|
|
);
|
||
|
|
|
||
|
|
$options->arg(
|
||
|
|
spec => 'server|s=s@',
|
||
|
|
help => 'RBL server',
|
||
|
|
required => 1,
|
||
|
|
);
|
||
|
|
|
||
|
|
$options->arg(
|
||
|
|
spec => 'host|H=s',
|
||
|
|
help =>
|
||
|
|
'SMTP server to check. If hostname is given, it will be resolved to its IP first.',
|
||
|
|
required => 0,
|
||
|
|
);
|
||
|
|
|
||
|
|
$options->arg(
|
||
|
|
spec => 'url|U=s',
|
||
|
|
help => 'URL to check. Will be ignored if host is set.',
|
||
|
|
required => 0,
|
||
|
|
);
|
||
|
|
|
||
|
|
$options->arg(
|
||
|
|
spec => 'retry|r=i',
|
||
|
|
help => 'Number of times to try a DNS query (default is 4) ',
|
||
|
|
required => 0,
|
||
|
|
default => $DEFAULT_RETRIES,
|
||
|
|
);
|
||
|
|
|
||
|
|
$options->arg(
|
||
|
|
spec => 'workers=i',
|
||
|
|
help => 'Number of parallel checks',
|
||
|
|
required => 0,
|
||
|
|
default => $DEFAULT_WORKERS,
|
||
|
|
);
|
||
|
|
|
||
|
|
$options->arg(
|
||
|
|
spec => 'whitelistings|wl',
|
||
|
|
help => 'Check whitelistings instead of blacklistings',
|
||
|
|
required => 0,
|
||
|
|
default => 0,
|
||
|
|
);
|
||
|
|
|
||
|
|
$options->arg(
|
||
|
|
spec => 'query-timeout=i',
|
||
|
|
help => 'Timeout of the RBL queries',
|
||
|
|
required => 0,
|
||
|
|
default => $DEFAULT_QUERY_TIMEOUT,
|
||
|
|
);
|
||
|
|
|
||
|
|
$options->arg(
|
||
|
|
spec => 'append|a=s',
|
||
|
|
help => 'Append string at the end of the plugin output',
|
||
|
|
required => 0,
|
||
|
|
default => $DEFAULT_APPEND_STRING,
|
||
|
|
);
|
||
|
|
|
||
|
|
$options->getopts();
|
||
|
|
|
||
|
|
###############
|
||
|
|
# Sanity checks
|
||
|
|
|
||
|
|
if ( $options->critical < $options->warning ) {
|
||
|
|
$plugin->nagios_exit( Monitoring::Plugin->UNKNOWN,
|
||
|
|
'critical has to be greater or equal warning' );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( ( !defined $options->host || $options->host eq q{} )
|
||
|
|
&& ( !defined $options->url || $options->url eq q{} ) )
|
||
|
|
{
|
||
|
|
$plugin->nagios_exit( Monitoring::Plugin->UNKNOWN,
|
||
|
|
'host or url has to be set' );
|
||
|
|
}
|
||
|
|
|
||
|
|
my $check_prefix;
|
||
|
|
my $check_object;
|
||
|
|
if ( defined $options->host and $options->host ne q{} ) {
|
||
|
|
|
||
|
|
# if checking for host
|
||
|
|
# validate ip and resolve hostname if applicable
|
||
|
|
my $ip = validate( $options->host );
|
||
|
|
|
||
|
|
# reverse ip order
|
||
|
|
my $local_ip = $ip;
|
||
|
|
if ( is_ipv6($local_ip) ) {
|
||
|
|
$local_ip = reverse $local_ip;
|
||
|
|
$local_ip =~ s/://gmxs;
|
||
|
|
$local_ip =~ s/(.)/$1\./gmxs;
|
||
|
|
chop($local_ip) # Cut the last character off the ip address.
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$local_ip =~
|
||
|
|
s/(\d{1,3}) [.] (\d{1,3}) [.] (\d{1,3}) [.] (\d{1,3})/$4.$3.$2.$1/mxs;
|
||
|
|
}
|
||
|
|
|
||
|
|
$check_prefix = $local_ip;
|
||
|
|
$check_object = $options->host;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
# if checking for url, just set the prefix to the url name
|
||
|
|
$check_prefix = $options->url;
|
||
|
|
$check_object = $options->url;
|
||
|
|
}
|
||
|
|
|
||
|
|
my @servers = @{ $options->server };
|
||
|
|
|
||
|
|
verbose 'Using ' . $options->timeout . " as global script timeout\n";
|
||
|
|
alarm $options->timeout;
|
||
|
|
|
||
|
|
################
|
||
|
|
# Set the limits
|
||
|
|
|
||
|
|
# see https://nagios-plugins.org/doc/guidelines.html#THRESHOLDFORMAT
|
||
|
|
$threshold = Monitoring::Plugin::Threshold->set_thresholds(
|
||
|
|
warning => $options->warning - 1,
|
||
|
|
critical => $options->critical - 1,
|
||
|
|
);
|
||
|
|
|
||
|
|
################################################################################
|
||
|
|
|
||
|
|
my $nservers = scalar @servers;
|
||
|
|
|
||
|
|
verbose 'Checking ' . $check_prefix . " on $nservers server(s)\n";
|
||
|
|
|
||
|
|
# build address lists
|
||
|
|
my @addrs;
|
||
|
|
foreach my $server (@servers) {
|
||
|
|
my $local_ip = $check_prefix . q{.} . $server;
|
||
|
|
push @addrs, $local_ip;
|
||
|
|
}
|
||
|
|
|
||
|
|
mdns(
|
||
|
|
\@addrs,
|
||
|
|
sub {
|
||
|
|
my ( $addr, $host ) = @_;
|
||
|
|
|
||
|
|
if ( defined $host ) {
|
||
|
|
|
||
|
|
debug("callback( $addr, $host )");
|
||
|
|
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
|
||
|
|
debug("callback( $addr, <undefined> )");
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
# extract RBL we checked
|
||
|
|
$addr =~ s/^(?:[a-f\d][.]){32}//mxs;
|
||
|
|
$addr =~ s/^(?:\d+[.]){4}//mxs;
|
||
|
|
if ( defined $host ) {
|
||
|
|
if ( $host eq q{} ) {
|
||
|
|
push @timeouts, $addr;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
verbose "listed in $addr as $host\n";
|
||
|
|
if ( !$options->get('whitelistings') ) {
|
||
|
|
push @listed, $addr . ' (' . $host . ')';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
verbose "not listed in $addr\n";
|
||
|
|
if ( $options->get('whitelistings') ) {
|
||
|
|
push @listed, $addr;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
);
|
||
|
|
|
||
|
|
my $total = scalar @listed;
|
||
|
|
|
||
|
|
my $status;
|
||
|
|
my $appendstring = $options->append;
|
||
|
|
if ( $options->get('whitelistings') ) {
|
||
|
|
|
||
|
|
$status =
|
||
|
|
$check_object
|
||
|
|
. " NOT WHITELISTED on $total "
|
||
|
|
. ( ( $total == 1 ) ? 'server' : 'servers' )
|
||
|
|
. " of $nservers";
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$status =
|
||
|
|
$check_object
|
||
|
|
. " BLACKLISTED on $total "
|
||
|
|
. ( ( $total == 1 ) ? 'server' : 'servers' )
|
||
|
|
. " of $nservers";
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
# append timeout info, but do not account these in status
|
||
|
|
if (@timeouts) {
|
||
|
|
$timeouts_string = scalar @timeouts;
|
||
|
|
$status =
|
||
|
|
" ($timeouts_string server"
|
||
|
|
. ( ( $timeouts_string > 1 ) ? 's' : q{} )
|
||
|
|
. ' timed out: '
|
||
|
|
. join( ', ', @timeouts ) . ')';
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( $total > 0 ) {
|
||
|
|
$status .= " (@listed)";
|
||
|
|
}
|
||
|
|
|
||
|
|
$plugin->add_perfdata(
|
||
|
|
label => 'servers',
|
||
|
|
value => $total,
|
||
|
|
uom => q{},
|
||
|
|
threshold => $threshold,
|
||
|
|
);
|
||
|
|
|
||
|
|
$plugin->add_perfdata(
|
||
|
|
label => 'time',
|
||
|
|
value => time - $time,
|
||
|
|
uom => q{s},
|
||
|
|
);
|
||
|
|
|
||
|
|
# append string defined in append argument to status output
|
||
|
|
if ( $appendstring ne q{} ) {
|
||
|
|
$status .= " $appendstring";
|
||
|
|
}
|
||
|
|
|
||
|
|
$plugin->nagios_exit( $threshold->get_status($total), $status );
|
||
|
|
|
||
|
|
return;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
1;
|