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# Ingress Mirror
# Duplicate all packets to another interface
# This is useful for some forms of IDS or capture
#
# **** License ****
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# This code was originally developed by Vyatta, Inc.
# Portions created by Vyatta are Copyright (C) 2010 Vyatta, Inc.
# All Rights Reserved.
# **** End License ****
package Vyatta::Qos::IngressMirror;
use strict;
use warnings;
require Vyatta::Config;
sub new {
my ( $that, $config, $name ) = @_;
my $self = {};
my $class = ref($that) || $that;
bless $self, $class;
$self->_define($config);
return $self;
}
# Setup new instance.
sub _define {
my ( $self, $config ) = @_;
# config is at level: interfaces ethernet $dev input-policy redirect
$self->{_target} = $config->returnValue();
}
sub commands {
my ( $self, $dev, $parent ) = @_;
my $target = $self->{_target};
# Apply filter to ingress qdisc
# NB: action is egress because we are in ingress (upside down)
printf "filter add dev %s parent %x: ", $dev, $parent;
print " protocol all prio 10 u32";
print " match u32 0 0 flowid 1:1";
print " action mirred egress mirror dev $target\n";
}
1;
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