#
# $Id: Sniff.pm 2172 2012-09-12 12:48:37Z gomor $
#
package Net::SinFP3::Input::Sniff;
use strict;
use warnings;
use base qw(Net::SinFP3::Input);
our @AS = qw(
promisc
filter
_dump
);
__PACKAGE__->cgBuildIndices;
__PACKAGE__->cgBuildAccessorsScalar(\@AS);
use Net::SinFP3::Next::Frame;
sub give {
return [
'Net::SinFP3::Next::Frame',
];
}
sub new {
my $self = shift->SUPER::new(
promisc => 1,
@_,
);
return $self;
}
sub init {
my $self = shift->SUPER::init(@_) or return;
my $global = $self->global;
my $log = $global->log;
# Default filter for passive fingerprinting
if (! $self->filter) {
my $filter = '';
if ($global->ipv6) {
$filter = 'ip6 and tcp';
}
else {
$filter = 'tcp and tcp[tcpflags] == tcp-syn';
}
$self->filter($filter);
}
my $oDump = $global->getDumpOnline(
promisc => $self->promisc,
filter => $self->filter,
timeoutOnNext => 0,
) or return;
$oDump->start or return;
$self->_dump($oDump);
return 1;
}
sub run {
my $self = shift->SUPER::run(@_) or return;
my $global = $self->global;
my $oDump = $self->_dump;
while (1) {
if (my $h = $oDump->next) {
my $frame = Net::Frame::Simple->newFromDump($h);
# Due to some buggy pcap installs that miss ip6 filter
if ($global->ipv6 && !exists($frame->ref->{IPv6})) {
next;
}
my $next = Net::SinFP3::Next::Frame->new(
global => $global,
frame => $frame,
);
return $next;
}
}
return;
}
1;
__END__
=head1 NAME
Net::SinFP3::Input::Sniff - sniff the network and returns Next::Frame objects
=head1 SYNOPSIS
=head1 DESCRIPTION
=head1 AUTHOR
Patrice E<lt>GomoRE<gt> Auffret
=head1 COPYRIGHT AND LICENSE
Copyright (c) 2011-2012, Patrice E<lt>GomoRE<gt> Auffret
You may distribute this module under the terms of the Artistic license.
See LICENSE.Artistic file in the source distribution archive.
=cut