#!/usr/local/bin/php-cgi -q
<?php
/*
 * easyrule
 *
 * part of pfSense (https://www.pfsense.org)
 * Copyright (c) 2010-2013 BSD Perimeter
 * Copyright (c) 2013-2016 Electric Sheep Fencing
 * Copyright (c) 2014-2021 Rubicon Communications, LLC (Netgate)
 * All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


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";
}
?>
