pfSense

<?php

/*

 *

 * part of pfSense (https://www.pfsense.org)

 * Copyright (c) 2013-2016 Electric Sheep Fencing

 * All rights reserved.

 *

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 * 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.

##|+PRIV

##|*IDENT=page-services-ntpd

##|*DESCR=Allow access to the 'Services: NTP Settings' page.

##|-PRIV

require_once("shaper.inc");

$ntp_poll_values = system_ntp_poll_values();

if (empty($config['ntpd']['interface'])) {

	if (is_array($config['installedpackages']['openntpd']) && is_array($config['installedpackages']['openntpd']['config']) &&

} else {

	$pconfig = $_POST;

	    ($_POST['ntpmaxpeers'] < $min_candidate_peers) || ($_POST['ntpmaxpeers'] > $max_candidate_peers))) {

		$input_errors[] = gettext("The supplied value for NTP Orphan Mode is invalid.");

	}

		$input_errors[] = gettext("The supplied value for Minimum Poll Interval is invalid.");

	}

	if (!array_key_exists($pconfig['ntpmaxpoll'], $ntp_poll_values)) {

		$input_errors[] = gettext("The supplied value for Maximum Poll Interval is invalid.");

	}

		if (isset($pconfig["servselect{$i}"]) && (isset($pconfig["servispool{$i}"]) || 

		    (substr_compare($pconfig["server{$i}"], $auto_pool_suffix, strlen($pconfig["server{$i}"]) - strlen($auto_pool_suffix), strlen($auto_pool_suffix)) === 0))) {

			$input_errors[] = gettext("It is not possible to use 'No Select' for pools.");

		}

		    !is_ipaddr($pconfig["server{$i}"])) {

			$input_errors[] = gettext("NTP Time Server names must be valid domain names, IPv4 addresses, or IPv6 addresses");

		}

	    is_numericint($pconfig['ntpmaxpoll']) &&

	    ($pconfig['ntpmaxpoll'] < $pconfig['ntpminpoll'])) {

		$input_errors[] = gettext("The supplied value for Minimum Poll Interval is higher than NTP Maximum Poll Interval.");

	}

		if (empty($pconfig['serverauthkey'])) {

			$input_errors[] = gettext("The supplied value for NTP Authentication key can't be empty.");

		    !ctype_print($pconfig['serverauthkey']))) {

			$input_errors[] = gettext("The supplied value for NTP Authentication key for MD5 digest must be from 1 to 20 printable characters.");

		} elseif (($pconfig['serverauthalgo'] == 'sha1') && ((strlen($pconfig['serverauthkey']) != 40) ||

			$input_errors[] = gettext("The supplied value for NTP Authentication key for SHA1 digest must be hex-encoded string of 40 characters.");

		    !ctype_xdigit($pconfig['serverauthkey']))) {

			$input_errors[] = gettext("The supplied value for NTP Authentication key for SHA256 digest must be hex-encoded string of 64 characters.");

	}

		unset($config['ntpd']['noselect']);

				$timeservers .= "{$tserver} ";

				}

				}

				}

		}

			$config['ntpd']['ntpmaxpeers'] = $pconfig['ntpmaxpeers'];

		} else {

			unset($config['ntpd']['ntpmaxpeers']);

		}

		$config['ntpd']['ntpmaxpoll'] = $pconfig['ntpmaxpoll'];

		if (!empty($_POST['statsgraph'])) {

		if (isset($enable_rrd_graphing)) {

			$config['ntpd']['leapsec'] = base64_encode($_POST['leaptext']);

			$config['ntpd']['serverauth'] = $_POST['serverauth'];

			$config['ntpd']['serverauthkey'] = base64_encode(trim($_POST['serverauthkey']));

			$config['ntpd']['serverauthalgo'] = $_POST['serverauthalgo'];

		} elseif (isset($config['ntpd']['serverauth'])) {

			unset($config['ntpd']['serverauth']);

			unset($config['ntpd']['serverauthkey']);

			unset($config['ntpd']['serverauthalgo']);

		}

}

function build_interface_list() {

	global $pconfig;

	$iflist = array('options' => array(), 'selected' => array());

	$interfaces = get_configured_interface_with_descr();

		    !is_ipaddrv6(get_interface_ipv6($iface))) {

			array_push($iflist['selected'], $iface);

		}

	return($iflist);

if ($changes_applied) {

	print_apply_result_box($retval);

$tab_array = array();

$tab_array[] = array(gettext("PPS"), false, "services_ntpd_pps.php");

display_top_tabs($tab_array);

$form = new Form;

	'enable',

	'Enable',

	'Enable NTP Server',

$section->addInput(new Form_Select(

	'interface',

	'Interface',

	$iflist['selected'],

	$iflist['options'],

	true

			'Selecting no interfaces will listen on all interfaces with a wildcard.%1$s' .

			'Selecting all interfaces will explicitly listen on only the interfaces/IPs specified.', '<br />');

	$group->setAttribute('max_repeats', NUMTIMESERVERS);

	$group->setAttribute('max_repeats_alert', sprintf(gettext('%d is the maximum number of configured servers.'), NUMTIMESERVERS));

	$group->add(new Form_Input(

		'text',

		['placeholder' => 'Hostname']

	 ))->setWidth(3);

	 $group->add(new Form_Checkbox(

		isset($config['ntpd']['prefer']) && isset($timeservers[$counter]) && substr_count($config['ntpd']['prefer'], $timeservers[$counter])

	 ))->sethelp('Prefer');

	 $group->add(new Form_Checkbox(

		null,

	 ))->sethelp('No Select');

		'servispool' . $counter,

		null,

		null,

		(substr_compare($timeservers[$counter], $auto_pool_suffix, strlen($timeservers[$counter]) - strlen($auto_pool_suffix), strlen($auto_pool_suffix)) === 0)

		 || (isset($config['ntpd']['ispool']) && isset($timeservers[$counter]) && substr_count($config['ntpd']['ispool'], $timeservers[$counter]))

	 ))->sethelp('Is a Pool');

		'deleterow' . $counter,

		'fa-trash'

	))->addClass('btn-warning');

	 $section->add($group);

}

	'addrow',

	'fa-plus'

))->addClass('btn-success');

$section->addInput(new Form_StaticText(

	null,

	$btnaddrow

	'NTP will only sync if a majority of the servers agree on the time.  For best results you should configure between 3 and 5 servers ' .

	'(%4$sNTP support pages recommend at least 4 or 5%5$s), or a pool. If only one server is configured, it %2$swill%3$s be believed, and if 2 servers ' .

	'are configured and they disagree, %2$sneither%3$s will be believed. Options:%1$s' .

	'%2$sPrefer%3$s - NTP should favor the use of this server more than all others.%1$s' .

	'%2$sNo Select%3$s - NTP should not use this server for time, but stats for this server will be collected and displayed.%1$s' .

	'%2$sIs a Pool%3$s - this entry is a pool of NTP servers and not a single address. This is assumed for *.pool.ntp.org.',

	'<b>',

	'</b>',

	'<a target="_blank" href="https://support.ntp.org/bin/view/Support/ConfiguringNTP">',

	);

	'ntpmaxpeers',

	$pconfig['ntpmaxpeers'],

	    'while not contacting an excessively large number of peers. ' .

	    'Many servers inside public pools are provided by volunteers, ' .

	    'and a large candidate pool places unnecessary extra load ' .

	    'on the volunteer time servers for little to no added benefit. (Default: 5).');

	'ntporphan',

	['placeholder' => "12"]

			'The number here specifies the stratum reported during orphan mode and should normally be set to a number high enough ' .

	'ntpminpoll',

	'Minimum Poll Interval',

	$pconfig['ntpminpoll'],

$section->addInput(new Form_Select(

	'ntpmaxpoll',

	'Maximum Poll Interval',

	$pconfig['ntpmaxpoll'],

	'statsgraph',

	'NTP Graphs',

	'Enable RRD graphs of NTP statistics (default: disabled).',

	$pconfig['statsgraph']

));

$section->addInput(new Form_Checkbox(

	'logpeer',

	'Log peer messages (default: disabled).',

));

$section->addInput(new Form_Checkbox(

	'logsys',

	null,

			'<a href="status_logs.php?logfile=ntpd">', '</a>.');

// Statistics logging section

	'fa-cog'

$section->addInput(new Form_StaticText(

$section->addInput(new Form_Checkbox(

	'clockstats',

	null,

));

$section->addInput(new Form_Checkbox(

	'loopstats',

	null,

));

$section->addInput(new Form_Checkbox(

	'peerstats',

	null,

));

// Leap seconds section

	'btnadvleap',

	'Display Advanced',

	'fa-cog'

$section->addInput(new Form_StaticText(

	'Leap seconds',

	'Leap seconds may be added or subtracted at the end of June or December. Leap seconds are administered by the ' .

	'%1$sIERS%2$s, who publish them in their Bulletin C approximately 6 - 12 months in advance.  Normally this correction ' .

	'should only be needed if the server is a stratum 1 NTP server, but many NTP servers do not advertise an upcoming leap ' .

	'second when other NTP servers synchronise to them.%3$s%4$sIf the leap second is important to your network services, ' .

	'it is %6$sgood practice%2$s to download and add the leap second file at least a day in advance of any time correction%5$s.%3$s ' .

	'More information and files for downloading can be found on their %1$swebsite%2$s, and also on the %7$NIST%2$s and %8$sNTP%2$s websites.',

	'<a target="_blank" href="https://www.iers.org">',

	'</a>',

	'<br />',

	'<b>',

	'</b>',

	'<a target="_blank" href="https://support.ntp.org/bin/view/Support/ConfiguringNTP">',

	'<a target="_blank" href="https://www.nist.gov">',

	'<a target="_blank" href="https://www.ntp.org">'

);

$section->addInput(new Form_Textarea(

	'leaptext',

	null,

	base64_decode(chunk_split($pconfig['leapsec']))

$section->addInput(new Form_Input(

	'leapfile',

	null,

	'file'

))->addClass('btn-default');

	'dnsresolv',

	'DNS Resolution',

	$pconfig['dnsresolv'],

	array(

		'auto' => 'Auto',

		'inet' => 'IPv4',

		'inet6' => 'IPv6',

	)

))->setHelp('Force NTP peers DNS resolution IP protocol. Do not affect pools.');

	'serverauth',

	'Enable NTP Server Authentication',

	'Enable NTPv3 authentication (RFC 1305)',

	$pconfig['serverauth']

))->setHelp('Authentication allows the NTP client to confirm it is communicating with the intended server, ' .

	    'which protects against man-in-the-middle attacks.');

$group = new Form_Group('Authentication key');

$group->addClass('ntpserverauth');

$group->add(new Form_IpAddress(

	'serverauthkey',

	'NTP Authentication key',

	base64_decode($pconfig['serverauthkey']),

	['placeholder' => 'NTP Authentication key']

))->setHelp(

	'SHA256 - The key is a hex-encoded ASCII string of 64 characters',

);

$group->add(new Form_Select(

	'serverauthalgo',

	null,

	$pconfig['serverauthalgo'],

	$ntp_auth_halgos

))->setWidth(3)->setHelp('Digest algorithm');

$section->add($group);

//<![CDATA[

	// IOW the help text will appear on every row

	retainhelp = true;

</script>

	var showadvstats = false;

		var text;

		// On page load decide the initial state based on the data.

		if (ispageload) {

<?php

			if (!$pconfig['clockstats'] && !$pconfig['loopstats'] && !$pconfig['peerstats']) {

				$showadv = false;

			} else {

				$showadv = true;

			}

?>

			showadvstats = <?php if ($showadv) {echo 'true';} else {echo 'false';} ?>;

		} else {

			// It was a click, swap the state.

			showadvstats = !showadvstats;

		}

		hideCheckbox('clockstats', !showadvstats);

		hideCheckbox('loopstats', !showadvstats);

		hideCheckbox('peerstats', !showadvstats);

		if (showadvstats) {

			text = "<?=gettext('Hide Advanced');?>";

		} else {

			text = "<?=gettext('Display Advanced');?>";

		}

		$('#btnadvstats').html('<i class="fa fa-cog"></i> ' + text);

	}

	$('#btnadvstats').click(function(event) {

		show_advstats();

	var showadvleap = false;

	function show_advleap(ispageload) {

		var text;

		// On page load decide the initial state based on the data.

		if (ispageload) {

<?php

			// Note: leapfile is not a field saved in the config, so no need to test for it here.

			// leapsec is the encoded text in the config, leaptext is not a pconfig[] key.

			if (empty($pconfig['leapsec'])) {

				$showadv = false;

			} else {

				$showadv = true;

			}

?>

			showadvleap = <?php if ($showadv) {echo 'true';} else {echo 'false';} ?>;

		} else {

			// It was a click, swap the state.

			showadvleap = !showadvleap;

		}

		hideInput('leaptext', !showadvleap);

		hideInput('leapfile', !showadvleap);

		if (showadvleap) {

			text = "<?=gettext('Hide Advanced');?>";

		} else {

			text = "<?=gettext('Display Advanced');?>";

		}

		$('#btnadvleap').html('<i class="fa fa-cog"></i> ' + text);