#!/usr/local/bin/php -q
<?php
/*
	easyrule CLI Program

	Copyright (C) 2010 Jim Pingle (jpingle@gmail.com)
	All rights reserved.

	Redistribution and use in source and binary forms, with or without
	modification, are permitted provided that the following conditions are met:

	1. Redistributions of source code must retain the above copyright notice,
	   this list of conditions and the following disclaimer.

	2. Redistributions in binary form must reproduce the above copyright
	   notice, this list of conditions and the following disclaimer in the
	   documentation and/or other materials provided with the distribution.

	THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
	INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
	AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
	AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
	OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	POSSIBILITY OF SUCH DAMAGE.
*/

require_once("pfsense-utils.inc");
require_once("easyrule.inc");
require_once("filter.inc");
require_once("shaper.inc");

$message = "";
$specialsrcdst = explode(" ", "any pptp pppoe l2tp openvpn");
$ifdisp = get_configured_interface_with_descr();
foreach ($ifdisp as $kif => $kdescr) {
	$specialsrcdst[] = "{$kif}";
	$specialsrcdst[] = "{$kif}ip";
}

/* Borrow this function from guiconfig.inc since we can't include it for use at the CLI

 - Maybe these need to be moved to util.inc or pfsense-utils.inc?

*/
function pconfig_to_address(&$adr, $padr, $pmask, $pnot=false, $pbeginport=0, $pendport=0) {

	$adr = array();

	if ($padr == "any") {
		$adr['any'] = true;
	} else if (is_specialnet($padr)) {
		$adr['network'] = $padr;
	} else {
		$adr['address'] = $padr;
		if ($pmask != 32) {
			$adr['address'] .= "/" . $pmask;
		}
	}

	if ($pnot) {
		$adr['not'] = true;
	} else {
		unset($adr['not']);
	}

	if (($pbeginport != 0) && ($pbeginport != "any")) {
		if ($pbeginport != $pendport) {
			$adr['port'] = $pbeginport . "-" . $pendport;
		} else {
			$adr['port'] = $pbeginport;
		}
	}

	if (is_alias($pbeginport)) {
		$adr['port'] = $pbeginport;
	}
}

/* Borrow this one from guiconfig.inc also */
function is_specialnet($net) {
	global $specialsrcdst;

	if (!$net) {
		return false;
	}
	if (in_array($net, $specialsrcdst)) {
		return true;
	} else {
		return false;
	}
}


if (($argc > 1) && !empty($argv[1])) {

	/* Automagically derive an alternate alias name from the scripts name
	 * This allows for using alternate alias lists with just a symlink */
	if (($alias = basename($argv[0])) != 'easyrule') {
		$blockaliasname = ucfirst($alias).'Rules';
	}

	$message = "";
	switch ($argv[1]) {
		case 'block':
			$message = easyrule_parse_block($argv[2], $argv[3]);
			break;
		case 'unblock':
			$message = easyrule_parse_unblock($argv[2], $argv[3]);
			break;
		case 'showblock':
			$message = easyrule_parse_getblock($argv[2]);
			break;
		case 'pass':
			$message = easyrule_parse_pass($argv[2], $argv[3], $argv[4], $argv[5], $argv[6]);
			break;
	}
	echo $message . "\n";
} else {
	// Print usage:
	echo "usage:\n";
	echo " Blocking only requires an IP to block, block rules can be shown with showblock and revoked using unblock\n";
	echo "     " . basename($argv[0]) . " block <interface> <source IP>\n";
	echo "\n";
	echo " Passing requires more detail, as it must be as specific as possible. The destination port is optional if you're using a protocol without a port (e.g. ICMP, OSPF, etc).\n";
	echo "     " . basename($argv[0]) . " pass <interface> <protocol> <source IP> <destination ip> [destination port]\n";
	echo "\n";
	echo " Block example:\n";
	echo "     " . basename($argv[0]) . " block wan 1.2.3.4\n";
	echo "\n";
	echo " Show active blocks example:\n";
	echo "     " . basename($argv[0]) . " showblock wan\n";
	echo "\n";
	echo " Unblock example:\n";
	echo "     " . basename($argv[0]) . " unblock wan 1.2.3.4\n";
	echo "\n";
	echo " Pass example (protocol with port):\n";
	echo "     " . basename($argv[0]) . " pass wan tcp 1.2.3.4 192.168.0.4 80\n";
	echo "\n";
	echo " Pass example (protocol without port):\n";
	echo "     " . basename($argv[0]) . " pass wan icmp 1.2.3.4 192.168.0.4\n";
	echo "\n";
}
?>