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<?php
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/* $Id$ */
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/*
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	system.php
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	part of m0n0wall (http://m0n0.ch/wall)
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	Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
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	All rights reserved.
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	Redistribution and use in source and binary forms, with or without
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	modification, are permitted provided that the following conditions are met:
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	1. Redistributions of source code must retain the above copyright notice,
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	   this list of conditions and the following disclaimer.
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	2. Redistributions in binary form must reproduce the above copyright
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	   notice, this list of conditions and the following disclaimer in the
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	   documentation and/or other materials provided with the distribution.
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	THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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	INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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	AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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	AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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	OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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	POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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	pfSense_BUILDER_BINARIES:	/bin/kill	/usr/bin/tar
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	pfSense_MODULE:	system
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*/
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##|+PRIV
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##|*IDENT=page-system-generalsetup
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##|*NAME=System: General Setup page
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##|*DESCR=Allow access to the 'System: General Setup' page.
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##|*MATCH=system.php*
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##|-PRIV
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require("guiconfig.inc");
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require_once("functions.inc");
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require_once("filter.inc");
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require_once("shaper.inc");
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$pconfig['hostname'] = $config['system']['hostname'];
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$pconfig['domain'] = $config['system']['domain'];
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list($pconfig['dns1'],$pconfig['dns2'],$pconfig['dns3'],$pconfig['dns4']) = $config['system']['dnsserver'];
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$pconfig['dns1gwint'] = $config['system']['dns1gwint'];
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$pconfig['dns2gwint'] = $config['system']['dns2gwint'];
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$pconfig['dns3gwint'] = $config['system']['dns3gwint'];
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$pconfig['dns4gwint'] = $config['system']['dns4gwint'];
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$pconfig['dnsallowoverride'] = isset($config['system']['dnsallowoverride']);
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$pconfig['timezone'] = $config['system']['timezone'];
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$pconfig['timeupdateinterval'] = $config['system']['time-update-interval'];
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$pconfig['timeservers'] = $config['system']['timeservers'];
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$pconfig['theme'] = $config['system']['theme'];
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if (!isset($pconfig['timeupdateinterval']))
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	$pconfig['timeupdateinterval'] = 300;
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if (!$pconfig['timezone'])
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	$pconfig['timezone'] = "Etc/UTC";
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if (!$pconfig['timeservers'])
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	$pconfig['timeservers'] = "pool.ntp.org";
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$changedesc = gettext("System") . ": ";
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$changecount = 0;
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function is_timezone($elt) {
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	return !preg_match("/\/$/", $elt);
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}
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if($pconfig['timezone'] <> $_POST['timezone']) {
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	/* restart firewall log dumper helper */
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	require_once("functions.inc");
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	$pid = `ps awwwux | grep -v "grep" | grep "tcpdump -v -l -n -e -ttt -i pflog0"  | awk '{ print $2 }'`;
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	if($pid) {
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		mwexec("/bin/kill $pid");
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		usleep(1000);
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	}		
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	filter_pflog_start();
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}
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exec('/usr/bin/tar -tzf /usr/share/zoneinfo.tgz', $timezonelist);
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$timezonelist = array_filter($timezonelist, 'is_timezone');
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sort($timezonelist);
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$multiwan = false;
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$interfaces = get_configured_interface_list();
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foreach($interfaces as $interface) {
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	if(interface_has_gateway($interface)) {
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		$multiwan = true;
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	}
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}
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if ($_POST) {
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	$changecount++;
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104
	unset($input_errors);
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	$pconfig = $_POST;
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107
	/* input validation */
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	$reqdfields = split(" ", "hostname domain");
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	$reqdfieldsn = array(gettext("Hostname"),gettext("Domain"));
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	do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
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	if ($_POST['hostname'] && !is_hostname($_POST['hostname'])) {
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		$input_errors[] = gettext("The hostname may only contain the characters a-z, 0-9 and '-'.");
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	}
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	if ($_POST['domain'] && !is_domain($_POST['domain'])) {
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		$input_errors[] = gettext("The domain may only contain the characters a-z, 0-9, '-' and '.'.");
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	}
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	if (($_POST['dns1'] && !is_ipaddr($_POST['dns1'])) || ($_POST['dns2'] && !is_ipaddr($_POST['dns2']))) {
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		$input_errors[] = gettext("A valid IP address must be specified for the primary/secondary DNS server.");
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	}
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	if (($_POST['dns3'] && !is_ipaddr($_POST['dns3'])) || ($_POST['dns4'] && !is_ipaddr($_POST['dns4']))) {
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		$input_errors[] = gettext("A valid IP address must be specified for the primary/secondary DNS server.");
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	}	
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	if ($_POST['webguiport'] && (!is_numericint($_POST['webguiport']) ||
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			($_POST['webguiport'] < 1) || ($_POST['webguiport'] > 65535))) {
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		$input_errors[] = gettext("A valid TCP/IP port must be specified for the webConfigurator port.");
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	}
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	$direct_networks_list = explode(" ", filter_get_direct_networks_list());
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	for ($dnscounter=1; $dnscounter<5; $dnscounter++) {
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		$dnsitem = "dns{$dnscounter}";
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		$dnsgwitem = "dns{$dnscounter}gwint";
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		if ($_POST[$dnsgwitem]) {
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			if(interface_has_gateway($_POST[$dnsgwitem])) {
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				foreach($direct_networks_list as $direct_network) {
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					if(ip_in_subnet($_POST[$dnsitem], $direct_network)) {
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						$input_errors[] = gettext("You can not assign a gateway to DNS '{$_POST[$dnsitem]}' server which is on a directly connected network.");
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					}
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				}
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			}
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		}
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	}
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	$t = (int)$_POST['timeupdateinterval'];
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	if (($t < 0) || (($t > 0) && ($t < 6)) || ($t > 1440)) {
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		$input_errors[] = gettext("The time update interval must be either 0 (disabled) or between 6 and 1440.");
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	}
149
	foreach (explode(' ', $_POST['timeservers']) as $ts) {
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		if (!is_domain($ts)) {
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			$input_errors[] = gettext("A NTP Time Server name may only contain the characters a-z, 0-9, '-' and '.'.");
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		}
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	}
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	if (!$input_errors) {
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		update_if_changed("hostname", $config['system']['hostname'], strtolower($_POST['hostname']));
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		update_if_changed("domain", $config['system']['domain'], strtolower($_POST['domain']));
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		update_if_changed("timezone", $config['system']['timezone'], $_POST['timezone']);
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		update_if_changed("NTP servers", $config['system']['timeservers'], strtolower($_POST['timeservers']));
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		update_if_changed("NTP update interval", $config['system']['time-update-interval'], $_POST['timeupdateinterval']);
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		/* pfSense themes */
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		if (! $g['disablethemeselection']) {
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			update_if_changed("System Theme", $config['theme'], $_POST['theme']);	
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		}
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		/* XXX - billm: these still need updating after figuring out how to check if they actually changed */
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		unset($config['system']['dnsserver']);
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		if ($_POST['dns1'])
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			$config['system']['dnsserver'][] = $_POST['dns1'];
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		if ($_POST['dns2'])
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			$config['system']['dnsserver'][] = $_POST['dns2'];
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		if ($_POST['dns3'])
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			$config['system']['dnsserver'][] = $_POST['dns3'];
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		if ($_POST['dns4'])
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			$config['system']['dnsserver'][] = $_POST['dns4'];
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		$olddnsallowoverride = $config['system']['dnsallowoverride'];
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		unset($config['system']['dnsallowoverride']);
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		$config['system']['dnsallowoverride'] = $_POST['dnsallowoverride'] ? true : false;
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		/* which interface should the dns servers resolve through? */
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		if($_POST['dns1gwint']) 
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			$config['system']['dns1gwint'] = $pconfig['dns1gwint'];
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		else 
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			unset($config['system']['dns1gwint']);
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		if($_POST['dns2gwint']) 
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			$config['system']['dns2gwint'] = $pconfig['dns2gwint'];
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		else
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			unset($config['system']['dns2gwint']);
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		if($_POST['dns3gwint']) 
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			$config['system']['dns3gwint'] = $pconfig['dns3gwint'];
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		else 
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			unset($config['system']['dns3gwint']);
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		if($_POST['dns4gwint']) 
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			$config['system']['dns4gwint'] = $pconfig['dns4gwint'];
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		else
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			unset($config['system']['dns4gwint']);
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205
		if ($changecount > 0)
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			write_config($changedesc);
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208
		$retval = 0;
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		$retval = system_hostname_configure();
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		$retval |= system_hosts_generate();
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		$retval |= system_resolvconf_generate();
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		$retval |= services_dnsmasq_configure();
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		$retval |= system_timezone_configure();
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		$retval |= system_ntp_configure();
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		if ($olddnsallowoverride != $config['system']['dnsallowoverride'])
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			$retval |= send_event("service reload dns");
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		// Reload the filter - plugins might need to be run.
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		$retval |= filter_configure();
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222
		$savemsg = get_std_save_message($retval);
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	}
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}
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$pgtitle = array(gettext("System"),gettext("General Setup"));
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include("head.inc");
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?>
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<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
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<?php
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	include("fbegin.inc");
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	if ($input_errors)
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		print_input_errors($input_errors);
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	if ($savemsg)
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		print_info_box($savemsg);
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?>
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	<form action="system.php" method="post">
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		<table width="100%" border="0" cellpadding="6" cellspacing="0">
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                        <tr>
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                                <td id="mainarea">
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                                        <div class="tabcont">
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			<table width="100%" border="0" cellpadding="6" cellspacing="0">
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			<tr>
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				<td colspan="2" valign="top" class="listtopic"><?=gettext("System"); ?></td>
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			</tr>
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			<tr>
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				<td width="22%" valign="top" class="vncellreq"><?=gettext("Hostname"); ?></td>
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				<td width="78%" class="vtable"> <input name="hostname" type="text" class="formfld unknown" id="hostname" size="40" value="<?=htmlspecialchars($pconfig['hostname']);?>">
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					<br/>
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					<span class="vexpl">
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						<?=gettext("Name of the firewall host, without domain part"); ?>
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						<br/>
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						<?=gettext("e.g."); ?> <em>firewall</em>
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					</span>
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				</td>
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			</tr>
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			<tr>
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				<td width="22%" valign="top" class="vncellreq"><?=gettext("Domain"); ?></td>
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				<td width="78%" class="vtable"> <input name="domain" type="text" class="formfld unknown" id="domain" size="40" value="<?=htmlspecialchars($pconfig['domain']);?>">
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					<br/>
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					<span class="vexpl">
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						<?=gettext("Do not use 'local' as a domain name. It will cause local hosts running mDNS (avahi, bonjour, etc.) to be unable to resolve local hosts not running mDNS."); ?>
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						<br/>
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						<?=gettext("e.g."); ?> <em><?=gettext("mycorp.com, home, office, private, etc."); ?></em>
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					</span>
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				</td>
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			</tr>
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			<tr>
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				<td width="22%" valign="top" class="vncell"><?=gettext("DNS servers"); ?></td>
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				<td width="78%" class="vtable">
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					<p>
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						<table>
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							<tr>
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								<td><b><?=gettext("DNS Server"); ?></b></td>
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								<?php if ($multiwan): ?>
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								<td><b><?=gettext("Use gateway"); ?></b></td>
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								<?php endif; ?>
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							</tr>
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							<?php
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								for ($dnscounter=1; $dnscounter<5; $dnscounter++):
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									$fldname="dns{$dnscounter}gwint";
284
							?>
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							<tr>
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								<td>
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									<input name="dns<?php echo $dnscounter;?>" type="text" class="formfld unknown" id="dns<?php echo $dnscounter;?>" size="28" value="<?php echo $pconfig['dns'.$dnscounter];?>">
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								</td>
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								<td>
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<?php if ($multiwan): ?>
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									<select name='<?=$fldname;?>'>
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										<?php
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											$interface = "none";
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											$dnsgw = "dns{$dnscounter}gwint";
295
											if($pconfig[$dnsgw] == $interface) {
296
												$selected = "selected";
297
											} else {
298
												$selected = "";
299
											}
300
											echo "<option value='$interface' $selected>". ucwords($interface) ."</option>\n";
301
											foreach($interfaces as $interface) {
302
												if(interface_has_gateway($interface)) {
303
													if($pconfig[$dnsgw] == $interface) {
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														$selected = "selected";
305
													} else {
306
														$selected = "";
307
													}
308
													$friendly_interface = convert_friendly_interface_to_friendly_descr($interface);
309
													echo "<option value='$interface' $selected>". ucwords($friendly_interface) ."</option>\n";
310
												}
311
											}
312
										?>
313
									</select>
314
<?php endif; ?>
315
								</td>
316
							</tr>
317
							<?php endfor; ?>
318
						</table>
319
						<br>
320
						<span class="vexpl">
321
							<?=gettext("IP addresses: these are also used for the DHCP " .
322
							"service, DNS forwarder and for PPTP VPN clients."); ?>
323
							<br/>
324
							<?php if($multiwan): ?>
325
							<br/>
326
							<?=gettext("In addition, select the gateway for each DNS server. " .
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							"You should have a unique DNS server per gateway."); ?>
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							<br/>
329
							<?php endif; ?>
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							<br/>
331
							<input name="dnsallowoverride" type="checkbox" id="dnsallowoverride" value="yes" <?php if ($pconfig['dnsallowoverride']) echo "checked"; ?>>
332
							<strong>
333
								<?=gettext("Allow DNS server list to be overridden by DHCP/PPP on WAN"); ?>
334
							</strong>
335
							<br/>
336
							<?php printf(gettext("If this option is set, %s will " .
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							"use DNS servers assigned by a DHCP/PPP server on WAN " .
338
							"for its own purposes (including the DNS forwarder). " .
339
							"However, they will not be assigned to DHCP and PPTP " .
340
							"VPN clients."), $g['product_name']); ?>
341
						</span>
342
					</p>
343
				</td>
344
			</tr>
345
			<tr>
346
				<td width="22%" valign="top" class="vncell"><?=gettext("Time zone"); ?></td>
347
				<td width="78%" class="vtable">
348
					<select name="timezone" id="timezone">
349
						<?php foreach ($timezonelist as $value): ?>
350
						<?php if(strstr($value, "GMT")) continue; ?>
351
						<option value="<?=htmlspecialchars($value);?>" <?php if ($value == $pconfig['timezone']) echo "selected"; ?>>
352
							<?=htmlspecialchars($value);?>
353
						</option>
354
						<?php endforeach; ?>
355
					</select>
356
					<br/>
357
					<span class="vexpl">
358
						<?=gettext("Select the location closest to you"); ?>
359
					</span>
360
				</td>
361
			</tr>
362
<!--
363
			<tr>
364
				<td width="22%" valign="top" class="vncell">Time update interval</td>
365
				<td width="78%" class="vtable">
366
					<input name="timeupdateinterval" type="text" class="formfld unknown" id="timeupdateinterval" size="4" value="<?=htmlspecialchars($pconfig['timeupdateinterval']);?>">
367
					<br/>
368
					<span class="vexpl">
369
						Minutes between network time sync. 300 recommended,
370
						or 0 to disable
371
					</span>
372
				</td>
373
			</tr>
374
-->
375
			<tr>
376
				<td width="22%" valign="top" class="vncell"><?=gettext("NTP time server"); ?></td>
377
				<td width="78%" class="vtable">
378
					<input name="timeservers" type="text" class="formfld unknown" id="timeservers" size="40" value="<?=htmlspecialchars($pconfig['timeservers']);?>">
379
					<br/>
380
					<span class="vexpl">
381
						<?=gettext("Use a space to separate multiple hosts (only one " .
382
						"required). Remember to set up at least one DNS server " .
383
						"if you enter a host name here!"); ?>
384
					</span>
385
				</td>
386
			</tr>
387
			<tr>
388
				<td colspan="2" class="list" height="12">&nbsp;</td>
389
			</tr>
390
			<?php if (! $g['disablethemeselection']): ?>
391
			<tr>
392
				<td colspan="2" valign="top" class="listtopic"><?=gettext("Theme"); ?></td>
393
			</tr>
394
			<tr>
395
				<td width="22%" valign="top" class="vncell">&nbsp;</td>
396
				<td width="78%" class="vtable">
397
					<select name="theme">
398
						<?php
399
							$files = return_dir_as_array("/usr/local/www/themes/");
400
							foreach($files as $f):
401
								if ((substr($f, 0, 1) == "_") && !isset($config['system']['developer']))
402
									continue;
403
								if ($f == "CVS")
404
									continue;
405
								$curtheme = "pfsense";
406
								if ($config['theme'])
407
									$curtheme = $config['theme'];
408
								$selected = "";
409
								if($f == $curtheme)
410
									$selected = " SELECTED";
411
						?>
412
						<option <?=$selected;?>><?=$f;?></option>
413
						<?php endforeach; ?>
414
					</select>
415
					<strong>
416
						<?=gettext("This will change the look and feel of"); ?>
417
						<?=$g['product_name'];?>.
418
					</strong>
419
				</td>
420
			</tr>
421
			<?php endif; ?>
422
			<tr>
423
				<td colspan="2" class="list" height="12">&nbsp;</td>
424
			</tr>			
425
			<tr>
426
				<td width="22%" valign="top">&nbsp;</td>
427
				<td width="78%">
428
					<input name="Submit" type="submit" class="formbtn" value="<?=gettext("Save");?>">
429
				</td>
430
			</tr>
431
		</table>
432
		</div>
433
		</td></tr>
434
		</table>
435
	</form>
436
<?php include("fend.inc"); ?>
437
</body>
438
</html>
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