diff --git a/os/linux/snmp/plugin.pm b/os/linux/snmp/plugin.pm index ec43d5227..8917e1bb3 100644 --- a/os/linux/snmp/plugin.pm +++ b/os/linux/snmp/plugin.pm @@ -61,6 +61,7 @@ sub new { 'processcount' => 'snmp_standard::mode::processcount', 'storage' => 'snmp_standard::mode::storage', 'swap' => 'snmp_standard::mode::swap', + 'time' => 'snmp_standard::mode::ntp', 'tcpcon' => 'snmp_standard::mode::tcpcon', 'traffic' => 'snmp_standard::mode::traffic', 'uptime' => 'snmp_standard::mode::uptime', diff --git a/snmp_standard/mode/ntp.pm b/snmp_standard/mode/ntp.pm new file mode 100644 index 000000000..3f097c647 --- /dev/null +++ b/snmp_standard/mode/ntp.pm @@ -0,0 +1,170 @@ +################################################################################ +# Copyright 2005-2014 MERETHIS +# Centreon is developped by : Julien Mathis and Romain Le Merlus under +# GPL Licence 2.0. +# +# 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. +# +# 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, see . +# +# Linking this program statically or dynamically with other modules is making a +# combined work based on this program. Thus, the terms and conditions of the GNU +# General Public License cover the whole combination. +# +# As a special exception, the copyright holders of this program give MERETHIS +# permission to link this program with independent modules to produce an executable, +# regardless of the license terms of these independent modules, and to copy and +# distribute the resulting executable under terms of MERETHIS choice, provided that +# MERETHIS also meet, for each linked independent module, the terms and conditions +# of the license of that module. An independent module is a module which is not +# derived from this program. If you modify this program, you may extend this +# exception to your version of the program, but you are not obliged to do so. If you +# do not wish to do so, delete this exception statement from your version. +# +# For more information : contact@centreon.com +# Authors : Quentin Garnier +# +#################################################################################### + +package snmp_standard::mode::ntp; + +use base qw(centreon::plugins::mode); + +use strict; +use warnings; +use centreon::plugins::misc; +use DateTime; + +sub new { + my ($class, %options) = @_; + my $self = $class->SUPER::new(package => __PACKAGE__, %options); + bless $self, $class; + + $self->{version} = '1.0'; + $options{options}->add_options(arguments => + { + "ntp-hostname:s" => { name => 'ntp_hostname' }, + "ntp-port:s" => { name => 'ntp_port', default => 123 }, + "warning:s" => { name => 'warning' }, + "critical:s" => { name => 'critical' }, + }); + return $self; +} + +sub check_options { + my ($self, %options) = @_; + $self->SUPER::init(%options); + + if (($self->{perfdata}->threshold_validate(label => 'warning', value => $self->{option_results}->{warning})) == 0) { + $self->{output}->add_option_msg(short_msg => "Wrong warning threshold '" . $self->{option_results}->{warning} . "'."); + $self->{output}->option_exit(); + } + if (($self->{perfdata}->threshold_validate(label => 'critical', value => $self->{option_results}->{critical})) == 0) { + $self->{output}->add_option_msg(short_msg => "Wrong critical threshold '" . $self->{option_results}->{critical} . "'."); + $self->{output}->option_exit(); + } + if (defined($self->{option_results}->{ntp_hostname})) { + centreon::plugins::misc::mymodule_load(output => $self->{output}, module => 'Net::NTP', + error_msg => "Cannot load module 'Net::NTP'."); + } +} + +sub run { + my ($self, %options) = @_; + # $options{snmp} = snmp object + $self->{snmp} = $options{snmp}; + + my ($ref_time, $distant_time); + my $oid_hrSystemDate = '.1.3.6.1.2.1.25.1.2.0'; + my $result = $self->{snmp}->get_leef(oids => [ $oid_hrSystemDate ]); + if (scalar(keys %$result) == 0) { + $self->{output}->output_add(severity => 'UNKNOWN', + short_msg => "Cannot get 'hrSystemDate' information."); + $self->{output}->display(); + $self->{output}->exit(); + } + if (defined($self->{option_results}->{ntp_hostname})) { + my %ntp; + + eval { + %ntp = Net::NTP::get_ntp_response($self->{option_results}->{ntp_hostname}, $self->{option_results}->{ntp_port}); + }; + if ($@) { + $self->{output}->output_add(severity => 'UNKNOWN', + short_msg => "Couldn't connect to ntp server: " . $@); + $self->{output}->display(); + $self->{output}->exit(); + } + + $ref_time = $ntp{'Transmit Timestamp'}; + } else { + $ref_time = time(); + } + + my @remote_date = unpack 'n C6 a C2', $result->{$oid_hrSystemDate}; + my $dt = DateTime->new( + year => $remote_date[0], + month => $remote_date[1], + day => $remote_date[2], + hour => $remote_date[3], + minute => $remote_date[4], + second => $remote_date[5], + time_zone => sprintf("%s%02d%02d", $remote_date[7], $remote_date[8], $remote_date[9]) , # format +0630 + ); + $distant_time = $dt->epoch; + + my $diff = $distant_time - $ref_time; + + my $exit = $self->{perfdata}->threshold_check(value => $diff, + threshold => [ { label => 'critical', 'exit_litteral' => 'critical' }, { label => 'warning', exit_litteral => 'warning' } ]); + $self->{output}->output_add(severity => $exit, + short_msg => sprintf("Time offset %d second(s)", $diff)); + + $self->{output}->perfdata_add(label => 'offset', unit => 's', + value => sprintf("%d", $diff), + warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning'), + critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical'), + ); + + $self->{output}->display(); + $self->{output}->exit(); +} + +1; + +__END__ + +=head1 MODE + +Check time offset of server with ntp server. Use local time if ntp-host option is not set. +SNMP gives a date with second precision (no milliseconds). Time precision is not very accurate. +Use threshold with (+-) 2 seconds offset (minimum). + +=over 8 + +=item B<--warning> + +Threshold warning. + +=item B<--critical> + +Threshold critical. + +=item B<--ntp-hostname> + +Set the ntp hostname (if not set, localtime is used). + +=item B<--ntp-port> + +Set the ntp port (Default: 123). + +=back + +=cut