157 lines
4.7 KiB
Perl
157 lines
4.7 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::arp;
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use base qw(centreon::plugins::templates::counter);
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use strict;
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use warnings;
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sub set_counters {
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my ($self, %options) = @_;
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$self->{maps_counters_type} = [
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{ name => 'global', type => 0, message_separator => ' - ' },
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];
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$self->{maps_counters}->{global} = [
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{ label => 'total-entries', nlabel => 'arp.total.entries.count', set => {
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key_values => [ { name => 'total' } ],
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output_template => 'total entries %s',
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perfdatas => [
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{ value => 'total', template => '%s', min => 0 },
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],
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}
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},
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{ label => 'duplicate-macaddr', nlabel => 'arp.duplicate.macaddr.count', set => {
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key_values => [ { name => 'duplicate_macaddress' } ],
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output_template => 'duplicate mac address %s',
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perfdatas => [
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{ value => 'duplicate_macaddress', template => '%s', min => 0 },
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],
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}
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},
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{ label => 'duplicate-ipaddr', nlabel => 'arp.duplicate.ipaddr.count', set => {
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key_values => [ { name => 'duplicate_ipaddress' } ],
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output_template => 'duplicate ip address %s',
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perfdatas => [
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{ value => 'duplicate_ipaddress', template => '%s', min => 0 },
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],
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}
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},
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];
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}
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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, force_new_perfdata => 1);
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bless $self, $class;
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$options{options}->add_options(arguments => {
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});
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return $self;
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}
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sub check_ipNetToMediaTable {
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my ($self, %options) = @_;
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my $oid_ipNetToMediaPhysAddress = '.1.3.6.1.2.1.4.22.1.2';
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my $result = $options{snmp}->get_table(oid => $oid_ipNetToMediaPhysAddress);
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return if (scalar(keys %$result) <= 0);
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$self->check_arp(result => $result, oid => $oid_ipNetToMediaPhysAddress);
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}
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sub check_atTable {
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my ($self, %options) = @_;
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return if (defined($self->{global}));
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my $oid_atPhysAddress = '.1.3.6.1.2.1.4.22.1.2';
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my $result = $options{snmp}->get_table(oid => $oid_atPhysAddress, nothing_quit => 1);
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$self->check_arp(result => $result, oid => $oid_atPhysAddress);
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}
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sub check_arp {
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my ($self, %options) = @_;
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$self->{global} = { total => 0, duplicate_macaddress => 0, duplicate_ipaddress => 0 };
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my $duplicate = { mac => { }, ip => {} };
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foreach (keys %{$options{result}}) {
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$self->{global}->{total}++;
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my $mac = join(':', unpack('(H2)*', $options{result}->{$_}));
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/^$options{oid}\.(\d+)\.(.*)$/;
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$duplicate->{ip}->{$2} = [] if (!defined($duplicate->{ip}->{$2}));
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push @{$duplicate->{ip}->{$2}}, $mac;
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$duplicate->{mac}->{$mac} = [] if (!defined($duplicate->{mac}->{$mac}));
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push @{$duplicate->{mac}->{$mac}}, $2;
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}
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$self->test_duplicate(duplicate => $duplicate);
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}
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sub test_duplicate {
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my ($self, %options) = @_;
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foreach (keys %{$options{duplicate}->{ip}}) {
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next if (scalar(@{$options{duplicate}->{ip}->{$_}}) == 1);
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$self->{global}->{duplicate_ipaddress}++;
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$self->{output}->output_add(long_msg =>
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sprintf("ip address '%s' ==> mac address: %s", $_, join(' ', @{$options{duplicate}->{ip}->{$_}}))
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);
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}
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foreach (keys %{$options{duplicate}->{mac}}) {
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next if (scalar(@{$options{duplicate}->{mac}->{$_}}) == 1);
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$self->{global}->{duplicate_macaddress}++;
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$self->{output}->output_add(long_msg =>
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sprintf("mac address '%s' ==> ip address: %s", $_, join(' ', @{$options{duplicate}->{mac}->{$_}}))
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);
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}
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}
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sub manage_selection {
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my ($self, %options) = @_;
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$self->check_ipNetToMediaTable(%options);
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$self->check_atTable(%options);
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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 arp table.
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=over 8
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=item B<--warning-*> B<--critical-*>
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Thresholds.
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Can be: 'total-entries', 'duplicate-macaddr', 'duplicate-ipaddr'.
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=back
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=cut
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