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enh(snmp_standard): arp mode - add mac/ip filter options (#3234)

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qgarnier 2021-11-08 11:40:46 +01:00 committed by GitHub
parent 8824c3cd4c
commit f17c9f9341
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1 changed files with 35 additions and 12 deletions
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47
snmp_standard/mode/arp.pm
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@ -29,7 +29,7 @@ sub set_counters {
my ($self, %options) = @_; my ($self, %options) = @_;
$self->{maps_counters_type} = [ $self->{maps_counters_type} = [
{ name => 'global', type => 0, message_separator => ' - ' }, { name => 'global', type => 0, message_separator => ' - ' }
]; ];
$self->{maps_counters}->{global} = [ $self->{maps_counters}->{global} = [
@ -37,26 +37,26 @@ sub set_counters {
key_values => [ { name => 'total' } ], key_values => [ { name => 'total' } ],
output_template => 'total entries %s', output_template => 'total entries %s',
perfdatas => [ perfdatas => [
{ value => 'total', template => '%s', min => 0 }, { template => '%s', min => 0 }
], ]
} }
}, },
{ label => 'duplicate-macaddr', nlabel => 'arp.duplicate.macaddr.count', set => { { label => 'duplicate-macaddr', nlabel => 'arp.duplicate.macaddr.count', set => {
key_values => [ { name => 'duplicate_macaddress' } ], key_values => [ { name => 'duplicate_macaddress' } ],
output_template => 'duplicate mac address %s', output_template => 'duplicate mac address %s',
perfdatas => [ perfdatas => [
{ value => 'duplicate_macaddress', template => '%s', min => 0 }, { template => '%s', min => 0 }
], ]
} }
}, },
{ label => 'duplicate-ipaddr', nlabel => 'arp.duplicate.ipaddr.count', set => { { label => 'duplicate-ipaddr', nlabel => 'arp.duplicate.ipaddr.count', set => {
key_values => [ { name => 'duplicate_ipaddress' } ], key_values => [ { name => 'duplicate_ipaddress' } ],
output_template => 'duplicate ip address %s', output_template => 'duplicate ip address %s',
perfdatas => [ perfdatas => [
{ value => 'duplicate_ipaddress', template => '%s', min => 0 }, { template => '%s', min => 0 }
], ]
} }
}, }
]; ];
} }
@ -66,6 +66,8 @@ sub new {
bless $self, $class; bless $self, $class;
$options{options}->add_options(arguments => { $options{options}->add_options(arguments => {
'filter-macaddr:s' => { name => 'filter_macaddr' },
'filter-ipaddr:s' => { name => 'filter_ipaddr' }
}); });
return $self; return $self;
@ -97,13 +99,26 @@ sub check_arp {
$self->{global} = { total => 0, duplicate_macaddress => 0, duplicate_ipaddress => 0 }; $self->{global} = { total => 0, duplicate_macaddress => 0, duplicate_ipaddress => 0 };
my $duplicate = { mac => { }, ip => {} }; my $duplicate = { mac => { }, ip => {} };
foreach (keys %{$options{result}}) { foreach (keys %{$options{result}}) {
$self->{global}->{total}++;
my $mac = join(':', unpack('(H2)*', $options{result}->{$_})); my $mac = join(':', unpack('(H2)*', $options{result}->{$_}));
/^$options{oid}\.(\d+)\.(.*)$/; /^$options{oid}\.(\d+)\.(.*)$/;
$duplicate->{ip}->{$2} = [] if (!defined($duplicate->{ip}->{$2})); my $ipaddr = $2;
push @{$duplicate->{ip}->{$2}}, $mac;
if (defined($self->{option_results}->{filter_macaddr}) && $self->{option_results}->{filter_macaddr} ne '' &&
$mac !~ /$self->{option_results}->{filter_macaddr}/) {
$self->{output}->output_add(long_msg => "skipping mac addr '" . $mac . "': no matching filter.", debug => 1);
next;
}
if (defined($self->{option_results}->{filter_ipaddr}) && $self->{option_results}->{filter_ipaddr} ne '' &&
$ipaddr !~ /$self->{option_results}->{filter_ipaddr}/) {
$self->{output}->output_add(long_msg => "skipping ip addr '" . $ipaddr . "': no matching filter.", debug => 1);
next;
}
$self->{global}->{total}++;
$duplicate->{ip}->{$ipaddr} = [] if (!defined($duplicate->{ip}->{$ipaddr}));
push @{$duplicate->{ip}->{$ipaddr}}, $mac;
$duplicate->{mac}->{$mac} = [] if (!defined($duplicate->{mac}->{$mac})); $duplicate->{mac}->{$mac} = [] if (!defined($duplicate->{mac}->{$mac}));
push @{$duplicate->{mac}->{$mac}}, $2; push @{$duplicate->{mac}->{$mac}}, $ipaddr;
} }
$self->test_duplicate(duplicate => $duplicate); $self->test_duplicate(duplicate => $duplicate);
@ -146,6 +161,14 @@ Check arp table.
=over 8 =over 8
=item B<--filter-macaddr>
Filter mac addresses (can be a regexp).
=item B<--filter-ipaddr>
Filter ip addresses (can be a regexp).
=item B<--warning-*> B<--critical-*> =item B<--warning-*> B<--critical-*>
Thresholds. Thresholds.