<?php
/*
	services_ntpd.php

	Copyright (C) 2012	Jim Pingle
	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.
*/
/*
	pfSense_MODULE:	ntpd
*/

##|+PRIV
##|*IDENT=page-services-ntpd
##|*NAME=Services: NTP
##|*DESCR=Allow access to the 'Services: NTP' page.
##|*MATCH=services_ntpd.php*
##|-PRIV

require("guiconfig.inc");

if (empty($config['ntpd']['interface']))
	if ($config['installedpackages']['openntpd'] && empty($config['installedpackages']['openntpd']['config'][0]['interface'])) {
		$pconfig['interface'] = explode(",", $config['installedpackages']['openntpd']['config'][0]['interface']);
		unset($config['installedpackages']['openntpd']);
	} else
		$pconfig['interface'] = array();
else
	$pconfig['interface'] = explode(",", $config['ntpd']['interface']);

if ($_POST) {

	unset($input_errors);
	$pconfig = $_POST;

	if (!$input_errors) {
		if (is_array($_POST['interface']))
			$config['ntpd']['interface'] = implode(",", $_POST['interface']);
		elseif (isset($config['ntpd']['interface']))
			unset($config['ntpd']['interface']);

		if (!empty($_POST['gpsport']) && file_exists('/dev/'.$_POST['gpsport']))
			$config['ntpd']['gpsport'] = $_POST['gpsport'];
		elseif (isset($config['ntpd']['gpsport']))
			unset($config['ntpd']['gpsport']);

		write_config("Updated NTP Server Settings");

		$retval = 0;
		$retval = system_ntp_configure();
		$savemsg = get_std_save_message($retval);

	}
}

$pgtitle = array(gettext("Services"),gettext("NTP"));
$shortcut_section = "ntp";
include("head.inc");

?>

<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
<?php include("fbegin.inc"); ?>
<form action="services_ntpd.php" method="post" name="iform" id="iform">
<?php if ($input_errors) print_input_errors($input_errors); ?>
<?php if ($savemsg) print_info_box($savemsg); ?>

<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr><td><div id="mainarea">
<table class="tabcont" width="100%" border="0" cellpadding="6" cellspacing="0">
<tr>
	<td colspan="2" valign="top" class="listtopic"><?=gettext("NTP Server Configuration"); ?></td>
</tr>
<tr>
	<td width="22%" valign="top" class="vncellreq">Interface(s)</td>
	<td width="78%" class="vtable">
<?php
	$interfaces = get_configured_interface_with_descr();
	$carplist = get_configured_carp_interface_list();
	foreach ($carplist as $cif => $carpip)
		$interfaces[$cif] = $carpip." (".get_vip_descr($carpip).")";
	$aliaslist = get_configured_ip_aliases_list();
	foreach ($aliaslist as $aliasip => $aliasif)
		$interfaces[$aliasip] = $aliasip." (".get_vip_descr($aliasip).")";
	$size = (count($interfaces) < 10) ? count($interfaces) : 10;
?>
	<select id="interface" name="interface[]" multiple="true" class="formselect" size="<?php echo $size; ?>">
<?php	
	foreach ($interfaces as $iface => $ifacename) {
		if (!is_ipaddr(get_interface_ip($iface)) && !is_ipaddr($iface))
			continue;
		echo "<option value='{$iface}'";
		if (in_array($iface, $pconfig['interface']))
			echo "selected";
		echo ">{$ifacename}</option>\n";
	} ?>
	</select>
	<br/>
	<br/><?php echo gettext("Interfaces without an IP address will not be shown."); ?>
	<br/>
	<br/><?php echo gettext("Selecting no interfaces will listen on all interfaces with a wildcard."); ?>
	<br/><?php echo gettext("Selecting all interfaces will explicitly listen on only the interfaces/IPs specified."); ?>
	</td>
</tr>
<?php /* Probing would be nice, but much more complex. Would need to listen to each port for 1s+ and watch for strings. */ ?>
<?php $serialports = glob("/dev/cua?[0-9]{,.[0-9]}", GLOB_BRACE); ?>
<?php if (!empty($serialports)): ?>
<tr>
	<td width="22%" valign="top" class="vncellreq">Serial GPS</td>
	<td width="78%" class="vtable">
		<select name="gpsport">
			<option value="">none</option>
			<?php foreach ($serialports as $port):
				$shortport = substr($port,5);
				$selected = ($shortport == $config['ntpd']['gpsport']) ? " selected" : "";?>
				<option value="<?php echo $shortport;?>"<?php echo $selected;?>><?php echo $shortport;?></option>
			<?php endforeach; ?>
		</select>
		<br/>
		<br/><?php echo gettext("The GPS must provide NMEA format output!"); ?>
		<br/>
		<br/><?php echo gettext("All serial ports are listed, be sure to pick only the port with the GPS attached."); ?>
		<br/>
		<br/><?php echo gettext("It is best to configure at least 2 servers under"); ?> <a href="system.php"><?php echo gettext("System > General"); ?></a> <?php echo gettext("to avoid loss of sync if the GPS data is not valid over time. Otherwise ntpd may only use values from the unsynchronized local clock when providing time to clients."); ?>
	</td>
</tr>
<?php endif; ?>
<tr>
	<td width="22%" valign="top">&nbsp;</td>
	<td width="78%">
	<input name="Submit" type="submit" class="formbtn" value="<?=gettext("Save");?>" onclick="enable_change(true)">
	</td>
</tr>
</table>
</div></td></tr></table>
</form>
<?php include("fend.inc"); ?>
</body>
</html>
