188 lines
6.6 KiB
Perl
188 lines
6.6 KiB
Perl
#
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# Copyright 2020 Centreon (http://www.centreon.com/)
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#
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# Centreon is a full-fledged industry-strength solution that meets
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# the needs in IT infrastructure and application monitoring for
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# service performance.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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package snmp_standard::mode::uptime;
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use base qw(centreon::plugins::mode);
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use strict;
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use warnings;
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use POSIX;
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use centreon::plugins::misc;
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use centreon::plugins::statefile;
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use Time::HiRes qw(time);
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sub new {
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my ($class, %options) = @_;
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my $self = $class->SUPER::new(package => __PACKAGE__, %options);
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bless $self, $class;
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$options{options}->add_options(arguments => {
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"warning:s" => { name => 'warning' },
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"critical:s" => { name => 'critical' },
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"force-oid:s" => { name => 'force_oid' },
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"check-overload" => { name => 'check_overload' },
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"reboot-window:s" => { name => 'reboot_window', default => 5000 },
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"unit:s" => { name => 'unit', default => 's' },
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});
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$self->{statefile_cache} = centreon::plugins::statefile->new(%options);
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return $self;
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}
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my $unitdiv = { s => 1, w => 604800, d => 86400, h => 3600, m => 60 };
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sub check_options {
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my ($self, %options) = @_;
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$self->SUPER::init(%options);
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if (($self->{perfdata}->threshold_validate(label => 'warning', value => $self->{option_results}->{warning})) == 0) {
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$self->{output}->add_option_msg(short_msg => "Wrong warning threshold '" . $self->{option_results}->{warning} . "'.");
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$self->{output}->option_exit();
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}
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if (($self->{perfdata}->threshold_validate(label => 'critical', value => $self->{option_results}->{critical})) == 0) {
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$self->{output}->add_option_msg(short_msg => "Wrong critical threshold '" . $self->{option_results}->{critical} . "'.");
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$self->{output}->option_exit();
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}
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if ($self->{option_results}->{unit} eq '' || !defined($unitdiv->{$self->{option_results}->{unit}})) {
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$self->{option_results}->{unit} = 's';
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}
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$self->{statefile_cache}->check_options(%options);
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}
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sub check_overload {
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my ($self, %options) = @_;
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return $options{timeticks} if (!defined($self->{option_results}->{check_overload}));
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my $current_time = floor(time() * 100);
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$self->{new_datas} = { last_time => $current_time, uptime => $options{timeticks} };
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$self->{statefile_cache}->read(statefile => "cache_" . $self->{snmp}->get_hostname() . '_' . $self->{snmp}->get_port() . '_' . $self->{mode});
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my $old_uptime = $self->{statefile_cache}->get(name => 'uptime');
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my $last_time = $self->{statefile_cache}->get(name => 'last_time');
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$self->{new_datas}->{overload} = $self->{statefile_cache}->get(name => 'overload') || 0;
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if (defined($old_uptime) && $options{timeticks} < $old_uptime) {
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my $diff_time = $current_time - $last_time;
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my $overflow = ($old_uptime + $diff_time) % 4294967296;
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my $division = ($old_uptime + $diff_time) / 4294967296;
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if ($division >= 1 &&
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$overflow >= ($options{timeticks} - ($self->{option_results}->{reboot_window} / 2)) &&
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$overflow <= ($options{timeticks} + ($self->{option_results}->{reboot_window} / 2))) {
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$self->{new_datas}->{overload}++;
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} else {
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$self->{new_datas}->{overload} = 0;
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}
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}
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$options{timeticks} += ($self->{new_datas}->{overload} * 4294967296);
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$self->{statefile_cache}->write(data => $self->{new_datas});
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return $options{timeticks};
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}
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sub run {
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my ($self, %options) = @_;
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$self->{snmp} = $options{snmp};
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# To be used first for OS
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my $oid_hrSystemUptime = '.1.3.6.1.2.1.25.1.1.0';
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# For network equipment or others
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my $oid_sysUpTime = '.1.3.6.1.2.1.1.3.0';
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my ($result, $value);
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if (defined($self->{option_results}->{force_oid})) {
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$result = $self->{snmp}->get_leef(oids => [ $self->{option_results}->{force_oid} ], nothing_quit => 1);
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$value = $result->{$self->{option_results}->{force_oid}};
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} else {
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$result = $self->{snmp}->get_leef(oids => [ $oid_hrSystemUptime, $oid_sysUpTime ], nothing_quit => 1);
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if (defined($result->{$oid_hrSystemUptime})) {
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$value = $result->{$oid_hrSystemUptime};
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} else {
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$value = $result->{$oid_sysUpTime};
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}
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}
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$value = $self->check_overload(timeticks => $value);
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$value = floor($value / 100);
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my $exit_code = $self->{perfdata}->threshold_check(value => floor($value / $unitdiv->{$self->{option_results}->{unit}}),
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threshold => [ { label => 'critical', exit_litteral => 'critical' }, { label => 'warning', exit_litteral => 'warning' } ]);
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$self->{output}->perfdata_add(
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label => 'uptime', unit => $self->{option_results}->{unit},
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value => floor($value / $unitdiv->{$self->{option_results}->{unit}}),
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warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning'),
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critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical'),
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min => 0
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);
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$self->{output}->output_add(
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severity => $exit_code,
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short_msg => sprintf(
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'System uptime is: %s',
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centreon::plugins::misc::change_seconds(value => $value, start => 'd')
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)
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);
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$self->{output}->display();
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$self->{output}->exit();
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}
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1;
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__END__
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=head1 MODE
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Check system uptime.
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=over 8
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=item B<--warning>
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Threshold warning in seconds.
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=item B<--critical>
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Threshold critical in seconds.
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=item B<--force-oid>
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Can choose your oid (numeric format only).
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=item B<--check-overload>
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Uptime counter limit is 4294967296 and overflow.
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With that option, we manage the counter going back. But there is a few chance we can miss a reboot.
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=item B<--reboot-window>
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To be used with check-overload option. Time in milliseconds (Default: 5000)
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You increase the chance of not missing a reboot if you decrease that value.
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=item B<--unit>
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Select the unit for performance data and thresholds. May be 's' for seconds, 'm' for minutes,
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'h' for hours, 'd' for days, 'w' for weeks. Default is seconds
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=back
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=cut
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