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package Smokeping::probes::EchoPingDNS;
=head1 301 Moved Permanently
This is a Smokeping probe module. Please use the command
C<smokeping -man Smokeping::probes::EchoPingDNS>
to view the documentation or the command
C<smokeping -makepod Smokeping::probes::EchoPingDNS>
to generate the POD document.
=cut
sub pod_hash {
return {
name => <<DOC,
Smokeping::probes::EchoPingDNS - an echoping(1) probe for SmokePing
DOC
overview => <<DOC,
Measures DNS roundtrip times for SmokePing with the echoping_dns plugin.
DOC
authors => <<'DOC',
Niko Tyni <ntyni@iki.fi>
DOC
notes => <<'DOC',
The I<fill>, I<size> and I<udp> EchoPing variables are not valid.
Plugins, including echoping_dns, are available starting with echoping version 6.
DOC
see_also => <<DOC,
L<Smokeping::probes::EchoPing>,
L<Smokeping::probes::EchoPingPlugin>
DOC
}
}
use strict;
use base qw(Smokeping::probes::EchoPingPlugin);
use Carp;
sub plugin_args {
my $self = shift;
my $target = shift;
my @args = ("-t", $target->{vars}{dns_type});
my $tcp = $target->{vars}{dns_tcp};
if ($tcp and $tcp ne "no") {
push @args, "--tcp";
}
push @args, $target->{vars}{dns_request};
return @args;
}
sub test_usage {
my $self = shift;
my $bin = $self->{properties}{binary};
# side effect: this sleeps for a random time between 0 and 1 seconds
# is there anything smarter to do?
croak("Your echoping binary doesn't support the dns plugin")
if `$bin -m dns 127.0.0.1 2>&1` =~ /(not compiled|invalid option|usage)/i;
$self->SUPER::test_usage;
return;
}
sub ProbeDesc($) {
return "DNS pings using the echoping_dns plugin";
}
sub targetvars {
my $class = shift;
my $h = $class->SUPER::targetvars;
delete $h->{udp};
delete $h->{fill};
delete $h->{size};
$h->{plugin}{default} = 'dns';
return $class->_makevars($h, {
_mandatory => [ 'dns_request' ],
dns_request => {
_doc => <<DOC,
The DNS request (domain name) to be queried.
DOC
_example => 'example.org',
},
dns_type => {
_doc => <<DOC,
The echoping_dns '-t' option: type of data requested (NS, A, SOA etc.)
DOC
_example => 'AAAA',
_default => 'A',
},
dns_tcp => {
_doc => <<DOC,
The echoping_dns '--tcp' option: use only TCP ('virtual circuit').
Enabled if specified with a value other than 'no' or '0'.
DOC
_example => 'yes',
},
},
);
}
1;
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