save_masq.cgi

linux环境下的一个防火墙程序的源代码

#!/usr/bin/perl

#======================================================================
# Turtle Firewall webmin module
#
# Copyright (c) Andrea Frigido
# You may distribute under the terms of either the GNU General Public
# License
#======================================================================


do 'lib.pl';

my $idx = $in{'idx'};
my $src = $in{'src'};
my $dst = $in{'dst'};
my ($service, $port) = formServiceParse( $in{'servicetype'}, $in{'service2'}, $in{'service3'}, $in{'port'} );
my $is_masquerade = $in{'masquerade'};
my $active = $in{'active'};

if( $in{'delete'} ) {
	# delete masquerade
	$whatfailed = $text{save_masq_error_title1};
	$fw->DeleteMasquerade( $idx );
} else {
	if( $in{'new'} ) {
		$whatfailed = $text{save_masq_error_title2};
	} else {
		$whatfailed = $text{save_masq_error_title3};
	}
	
	if( $port ne '' && ($port < 0 || $port > 65535) ) {
		error( $text{save_masq_error1} );
	}

	if( $port ne '' && $service ne 'tcp' && $service ne 'udp' ) {
		error( $text{save_masq_error2} );
	}
	
	$fw->AddMasquerade( $in{'new'} ? 0 : $idx, $src, $dst, $service, $port, $is_masquerade, $active );
}

$fw->SaveFirewall();
redirect( 'list_nat.cgi' );