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<?php
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/*
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vpn_ipsec_settings.php
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Copyright (C) 2015 Electric Sheep Fencing, LLC
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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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##|+PRIV
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##|*IDENT=page-vpn-ipsec-settings
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##|*NAME=VPN: IPsec: Settings page
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##|*DESCR=Allow access to the 'VPN: IPsec: Settings' page.
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##|*MATCH=vpn_ipsec_settings.php*
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##|-PRIV
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require("functions.inc");
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require("guiconfig.inc");
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require_once("filter.inc");
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require_once("shaper.inc");
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require_once("ipsec.inc");
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require_once("vpn.inc");
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foreach ($ipsec_loglevels as $lkey => $ldescr) {
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if (!empty($config['ipsec']["ipsec_{$lkey}"])) {
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$pconfig["ipsec_{$lkey}"] = $config['ipsec']["ipsec_{$lkey}"];
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}
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}
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$pconfig['unityplugin'] = isset($config['ipsec']['unityplugin']);
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$pconfig['strictcrlpolicy'] = isset($config['ipsec']['strictcrlpolicy']);
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$pconfig['makebeforebreak'] = isset($config['ipsec']['makebeforebreak']);
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$pconfig['noshuntlaninterfaces'] = isset($config['ipsec']['noshuntlaninterfaces']);
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$pconfig['compression'] = isset($config['ipsec']['compression']);
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$pconfig['enableinterfacesuse'] = isset($config['ipsec']['enableinterfacesuse']);
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$pconfig['acceptunencryptedmainmode'] = isset($config['ipsec']['acceptunencryptedmainmode']);
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$pconfig['maxmss_enable'] = isset($config['system']['maxmss_enable']);
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$pconfig['maxmss'] = $config['system']['maxmss'];
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$pconfig['uniqueids'] = $config['ipsec']['uniqueids'];
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if ($_POST) {
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unset($input_errors);
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$pconfig = $_POST;
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if (!in_array($pconfig['ipsec_dmn'], array('0', '1', '2', '3', '4', '5'), true)) {
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$input_errors[] = "A valid value must be specified for Daemon debug.";
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}
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if (!in_array($pconfig['ipsec_mgr'], array('0', '1', '2', '3', '4', '5'), true)) {
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$input_errors[] = "A valid value must be specified for SA Manager debug.";
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}
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if (!in_array($pconfig['ipsec_ike'], array('0', '1', '2', '3', '4', '5'), true)) {
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$input_errors[] = "A valid value must be specified for IKE SA debug.";
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}
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if (!in_array($pconfig['ipsec_chd'], array('0', '1', '2', '3', '4', '5'), true)) {
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$input_errors[] = "A valid value must be specified for IKE Child SA debug.";
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}
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if (!in_array($pconfig['ipsec_job'], array('0', '1', '2', '3', '4', '5'), true)) {
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$input_errors[] = "A valid value must be specified for Job Processing debug.";
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}
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if (!in_array($pconfig['ipsec_cfg'], array('0', '1', '2', '3', '4', '5'), true)) {
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$input_errors[] = "A valid value must be specified for Configuration backend debug.";
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}
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if (!in_array($pconfig['ipsec_knl'], array('0', '1', '2', '3', '4', '5'), true)) {
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$input_errors[] = "A valid value must be specified for Kernel Interface debug.";
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}
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if (!in_array($pconfig['ipsec_net'], array('0', '1', '2', '3', '4', '5'), true)) {
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$input_errors[] = "A valid value must be specified for Networking debug.";
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}
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if (!in_array($pconfig['ipsec_asn'], array('0', '1', '2', '3', '4', '5'), true)) {
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$input_errors[] = "A valid value must be specified for ASN Encoding debug.";
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}
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if (!in_array($pconfig['ipsec_enc'], array('0', '1', '2', '3', '4', '5'), true)) {
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$input_errors[] = "A valid value must be specified for Message encoding debug.";
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}
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if (!in_array($pconfig['ipsec_imc'], array('0', '1', '2', '3', '4', '5'), true)) {
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$input_errors[] = "A valid value must be specified for Integrity checker debug.";
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}
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if (!in_array($pconfig['ipsec_imv'], array('0', '1', '2', '3', '4', '5'), true)) {
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$input_errors[] = "A valid value must be specified for Integrity Verifier debug.";
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}
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if (!in_array($pconfig['ipsec_pts'], array('0', '1', '2', '3', '4', '5'), true)) {
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$input_errors[] = "A valid value must be specified for Platform Trust Service debug.";
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}
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if (!in_array($pconfig['ipsec_tls'], array('0', '1', '2', '3', '4', '5'), true)) {
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$input_errors[] = "A valid value must be specified for TLS Handler debug.";
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}
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if (!in_array($pconfig['ipsec_esp'], array('0', '1', '2', '3', '4', '5'), true)) {
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$input_errors[] = "A valid value must be specified for IPsec Traffic debug.";
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}
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if (!in_array($pconfig['ipsec_lib'], array('0', '1', '2', '3', '4', '5'), true)) {
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$input_errors[] = "A valid value must be specified for StrongSwan Lib debug.";
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}
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if (isset($pconfig['maxmss'])) {
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if (!is_numericint($pconfig['maxmss']) && $pconfig['maxmss'] <> '') {
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$input_errors[] = "An integer must be specified for Maximum MSS.";
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}
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if ($pconfig['maxmss'] <> '' && $pconfig['maxmss'] < 576 || $pconfig['maxmss'] > 65535) {
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$input_errors[] = "An integer between 576 and 65535 must be specified for Maximum MSS";
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}
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}
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if (!$input_errors) {
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foreach ($ipsec_loglevels as $lkey => $ldescr) {
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if (empty($_POST["ipsec_{$lkey}"])) {
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if (isset($config['ipsec']["ipsec_{$lkey}"])) {
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unset($config['ipsec']["ipsec_{$lkey}"]);
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}
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} else {
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$config['ipsec']["ipsec_{$lkey}"] = $_POST["ipsec_{$lkey}"];
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}
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}
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$needsrestart = false;
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if ($_POST['compression'] == "yes") {
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if (!isset($config['ipsec']['compression'])) {
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$needsrestart = true;
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}
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$config['ipsec']['compression'] = true;
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} elseif (isset($config['ipsec']['compression'])) {
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$needsrestart = true;
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unset($config['ipsec']['compression']);
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}
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if ($_POST['enableinterfacesuse'] == "yes") {
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if (!isset($config['ipsec']['enableinterfacesuse'])) {
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$needsrestart = true;
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}
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$config['ipsec']['enableinterfacesuse'] = true;
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} elseif (isset($config['ipsec']['enableinterfacesuse'])) {
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$needsrestart = true;
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unset($config['ipsec']['enableinterfacesuse']);
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}
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if ($_POST['unityplugin'] == "yes") {
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if (!isset($config['ipsec']['unityplugin'])) {
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$needsrestart = true;
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}
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$config['ipsec']['unityplugin'] = true;
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} elseif (isset($config['ipsec']['unityplugin'])) {
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$needsrestart = true;
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unset($config['ipsec']['unityplugin']);
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}
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if ($_POST['strictcrlpolicy'] == "yes") {
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$config['ipsec']['strictcrlpolicy'] = true;
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} else {
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unset($config['ipsec']['strictcrlpolicy']);
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}
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if ($_POST['makebeforebreak'] == "yes") {
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$config['ipsec']['makebeforebreak'] = true;
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} elseif (isset($config['ipsec']['makebeforebreak'])) {
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unset($config['ipsec']['makebeforebreak']);
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}
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if ($_POST['noshuntlaninterfaces'] == "yes") {
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if (isset($config['ipsec']['noshuntlaninterfaces'])) {
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unset($config['ipsec']['noshuntlaninterfaces']);
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}
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} else {
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$config['ipsec']['noshuntlaninterfaces'] = true;
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}
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if ($_POST['acceptunencryptedmainmode'] == "yes") {
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if (!isset($config['ipsec']['acceptunencryptedmainmode'])) {
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$needsrestart = true;
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}
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$config['ipsec']['acceptunencryptedmainmode'] = true;
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} elseif (isset($config['ipsec']['acceptunencryptedmainmode'])) {
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$needsrestart = true;
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unset($config['ipsec']['acceptunencryptedmainmode']);
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}
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if (!empty($_POST['uniqueids'])) {
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$config['ipsec']['uniqueids'] = $_POST['uniqueids'];
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} else if (isset($config['ipsec']['uniqueids'])) {
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unset($config['ipsec']['uniqueids']);
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}
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if ($_POST['maxmss_enable'] == "yes") {
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$config['system']['maxmss_enable'] = true;
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$config['system']['maxmss'] = $_POST['maxmss'];
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} else {
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if (isset($config['system']['maxmss_enable'])) {
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unset($config['system']['maxmss_enable']);
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}
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if (isset($config['system']['maxmss'])) {
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unset($config['system']['maxmss']);
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}
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}
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write_config();
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$retval = 0;
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$retval = filter_configure();
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if (stristr($retval, "error") <> true) {
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$savemsg = get_std_save_message(gettext($retval));
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} else {
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$savemsg = gettext($retval);
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}
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vpn_ipsec_configure($needsrestart);
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vpn_ipsec_configure_loglevels();
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header("Location: vpn_ipsec_settings.php");
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return;
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}
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// The logic value sent by $POST is opposite to the way it is stored in the config.
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// Reset the $pconfig value so it reflects the opposite of what was $POSTed.
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if ($_POST['noshuntlaninterfaces'] == "yes") {
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$pconfig['noshuntlaninterfaces'] = false;
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} else {
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$pconfig['noshuntlaninterfaces'] = true;
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}
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}
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$pgtitle = array(gettext("VPN"), gettext("IPsec"), gettext("Settings"));
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$shortcut_section = "ipsec";
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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 include("fbegin.inc"); ?>
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<script type="text/javascript">
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//<![CDATA[
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function maxmss_checked(obj) {
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if (obj.checked) {
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jQuery('#maxmss').attr('disabled', false);
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} else {
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jQuery('#maxmss').attr('disabled', 'true');
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}
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}
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//]]>
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</script>
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<form action="vpn_ipsec_settings.php" method="post" name="iform" id="iform">
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<?php
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if ($savemsg) {
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print_info_box($savemsg);
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}
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if ($input_errors) {
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print_input_errors($input_errors);
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}
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?>
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<table width="100%" border="0" cellpadding="0" cellspacing="0" summary="vpn ipsec settings">
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<tr>
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<td class="tabnavtbl">
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<?php
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$tab_array = array();
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$tab_array[0] = array(gettext("Tunnels"), false, "vpn_ipsec.php");
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$tab_array[1] = array(gettext("Mobile clients"), false, "vpn_ipsec_mobile.php");
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$tab_array[2] = array(gettext("Pre-Shared Key"), false, "vpn_ipsec_keys.php");
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$tab_array[3] = array(gettext("Advanced Settings"), true, "vpn_ipsec_settings.php");
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display_top_tabs($tab_array);
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?>
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</td>
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</tr>
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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" summary="main area">
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<tr>
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<td colspan="2" valign="top" class="listtopic"><?=gettext("IPsec Advanced Settings"); ?></td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncell"><?=gettext("IPsec Debug"); ?></td>
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<td width="78%" class="vtable">
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<strong><?=gettext("Start IPsec in debug mode based on sections selected"); ?></strong>
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<br />
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<table summary="ipsec debug">
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<?php foreach ($ipsec_loglevels as $lkey => $ldescr): ?>
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<tr>
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<td width="22%" valign="top" class="vncell"><?=$ldescr;?></td>
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<td width="78%" valign="top" class="vncell">
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<?php
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echo "<select name=\"ipsec_{$lkey}\" id=\"ipsec_{$lkey}\">\n";
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foreach (array("Silent", "Audit", "Control", "Diag", "Raw", "Highest") as $lidx => $lvalue) {
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echo "<option value=\"{$lidx}\" ";
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if ($pconfig["ipsec_{$lkey}"] == $lidx) {
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echo "selected=\"selected\"";
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}
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echo ">{$lvalue}</option>\n";
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}
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?>
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</select>
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</td>
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</tr>
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<?php endforeach; ?>
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<tr style="display:none;">
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<td></td>
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</tr>
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</table>
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<br /><?=gettext("Launches IPsec in debug mode so that more verbose logs " .
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"will be generated to aid in troubleshooting."); ?>
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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("Unique IDs"); ?></td>
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<td width="78%" class="vtable">
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<strong><?=gettext("Configure Unique IDs as: "); ?></strong>
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<?php
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echo "<select name=\"uniqueids\" id=\"uniqueids\">\n";
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foreach ($ipsec_idhandling as $value => $lvalue) {
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echo "<option value=\"{$value}\" ";
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334
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if ($pconfig['uniqueids'] == $value) {
|
|
335
|
echo "selected=\"selected\"";
|
|
336
|
}
|
|
337
|
echo ">{$lvalue}</option>\n";
|
|
338
|
}
|
|
339
|
?>
|
|
340
|
</select>
|
|
341
|
<br />
|
|
342
|
<?=gettext("whether a particular participant ID should be kept unique, with any new IKE_SA using an ID " .
|
|
343
|
"deemed to replace all old ones using that ID. Participant IDs normally are unique, so a new " .
|
|
344
|
"IKE_SA using the same ID is almost invariably intended to replace an old one. " .
|
|
345
|
"The difference between <b>no</b> and <b>never</b> is that the old IKE_SAs will be replaced when receiving an " .
|
|
346
|
"INITIAL_CONTACT notify if the option is no but will ignore these notifies if <b>never</b> is configured. " .
|
|
347
|
"The daemon also accepts the value <b>keep</b> to reject " .
|
|
348
|
"new IKE_SA setups and keep the duplicate established earlier. Defaults to Yes."); ?>
|
|
349
|
</td>
|
|
350
|
</tr>
|
|
351
|
<tr>
|
|
352
|
<td width="22%" valign="top" class="vncell"><?=gettext("IP Compression"); ?></td>
|
|
353
|
<td width="78%" class="vtable">
|
|
354
|
<input name="compression" type="checkbox" id="compression" value="yes" <?php if ($pconfig['compression']) echo "checked=\"checked\""; ?> />
|
|
355
|
<strong><?=gettext("Enable IPCompression"); ?></strong>
|
|
356
|
<br />
|
|
357
|
<?=gettext("IPComp compression of content is proposed on the connection."); ?>
|
|
358
|
</td>
|
|
359
|
</tr>
|
|
360
|
<tr>
|
|
361
|
<td width="22%" valign="top" class="vncell"><?=gettext("Strict interface binding"); ?></td>
|
|
362
|
<td width="78%" class="vtable">
|
|
363
|
<input name="enableinterfacesuse" type="checkbox" id="enableinterfacesuse" value="yes" <?php if ($pconfig['enableinterfacesuse']) echo "checked=\"checked\""; ?> />
|
|
364
|
<strong><?=gettext("Enable strict interface binding"); ?></strong>
|
|
365
|
<br />
|
|
366
|
<?=gettext("Enable strongSwan's interfaces_use option to bind specific interfaces only. This option is known to break IPsec with dynamic IP interfaces. This is not recommended at this time."); ?>
|
|
367
|
</td>
|
|
368
|
</tr>
|
|
369
|
<tr>
|
|
370
|
<td width="22%" valign="top" class="vncell"><?=gettext("Unencrypted payloads in IKEv1 Main Mode"); ?></td>
|
|
371
|
<td width="78%" class="vtable">
|
|
372
|
<input name="acceptunencryptedmainmode" type="checkbox" id="acceptunencryptedmainmode" value="yes" <?php if ($pconfig['acceptunencryptedmainmode']) echo "checked=\"checked\""; ?> />
|
|
373
|
<strong><?=gettext("Accept unencrypted ID and HASH payloads in IKEv1 Main Mode"); ?></strong>
|
|
374
|
<br />
|
|
375
|
<?=gettext("Some implementations send the third Main Mode message unencrypted, probably to find the PSKs for the specified ID for authentication." .
|
|
376
|
"This is very similar to Aggressive Mode, and has the same security implications: " .
|
|
377
|
"A passive attacker can sniff the negotiated Identity, and start brute forcing the PSK using the HASH payload." .
|
|
378
|
" It is recommended to keep this option to no, unless you know exactly what the implications are and require compatibility to such devices (for example, some SonicWall boxes).");?>
|
|
379
|
</td>
|
|
380
|
</tr>
|
|
381
|
<tr>
|
|
382
|
<td width="22%" valign="top" class="vncell"><?=gettext("Maximum MSS"); ?></td>
|
|
383
|
<td width="78%" class="vtable">
|
|
384
|
<input name="maxmss_enable" type="checkbox" id="maxmss_enable" value="yes" <?php if ($pconfig['maxmss_enable'] == true) echo "checked=\"checked\""; ?> onclick="maxmss_checked(this)" />
|
|
385
|
<strong><?=gettext("Enable MSS clamping on VPN traffic"); ?></strong>
|
|
386
|
<br />
|
|
387
|
<input name="maxmss" id="maxmss" value="<?php if ($pconfig['maxmss'] <> "") echo htmlspecialchars($pconfig['maxmss']); else "1400"; ?>" class="formfld unknown" <?php if ($pconfig['maxmss_enable'] == false) echo "disabled=\"disabled\""; ?> />
|
|
388
|
<br />
|
|
389
|
<?=gettext("Enable MSS clamping on TCP flows over VPN. " .
|
|
390
|
"This helps overcome problems with PMTUD on IPsec VPN links. If left blank, the default value is 1400 bytes. "); ?>
|
|
391
|
</td>
|
|
392
|
</tr>
|
|
393
|
<tr>
|
|
394
|
<td width="22%" valign="top" class="vncell"><?=gettext("Disable Cisco Extensions"); ?></td>
|
|
395
|
<td width="78%" class="vtable">
|
|
396
|
<input name="unityplugin" type="checkbox" id="unityplugin" value="yes" <?php if ($pconfig['unityplugin'] == true) echo "checked=\"checked\""; ?> />
|
|
397
|
<strong><?=gettext("Disable Unity Plugin"); ?></strong>
|
|
398
|
<br />
|
|
399
|
<?=gettext("Disable Unity Plugin which provides Cisco Extension support as Split-Include, Split-Exclude, Split-Dns, ..."); ?>
|
|
400
|
</td>
|
|
401
|
</tr>
|
|
402
|
<tr>
|
|
403
|
<td width="22%" valign="top" class="vncell"><?=gettext("Strict CRL Checking"); ?></td>
|
|
404
|
<td width="78%" class="vtable">
|
|
405
|
<input name="strictcrlpolicy" type="checkbox" id="strictcrlpolicy" value="yes" <?php if ($pconfig['strictcrlpolicy'] == true) echo "checked=\"checked\""; ?> />
|
|
406
|
<strong><?=gettext("Enable strict Certificate Revocation List checking"); ?></strong>
|
|
407
|
<br />
|
|
408
|
<?=gettext("Check this to require availability of a fresh CRL for peer authentication based on RSA signatures to succeed."); ?>
|
|
409
|
</td>
|
|
410
|
</tr>
|
|
411
|
<tr>
|
|
412
|
<td width="22%" valign="top" class="vncell"><?=gettext("Make before Break"); ?></td>
|
|
413
|
<td width="78%" class="vtable">
|
|
414
|
<input name="makebeforebreak" type="checkbox" id="makebeforebreak" value="yes" <?php if ($pconfig['makebeforebreak'] == true) echo "checked=\"checked\""; ?> />
|
|
415
|
<strong><?=gettext("Initiate IKEv2 reauthentication with a make-before-break"); ?></strong>
|
|
416
|
<br />
|
|
417
|
<?=gettext("instead of a break-before-make scheme. Make-before-break uses overlapping IKE and CHILD_SA during reauthentication " .
|
|
418
|
"by first recreating all new SAs before deleting the old ones. This behavior can be beneficial to avoid connectivity gaps " .
|
|
419
|
"during reauthentication, but requires support for overlapping SAs by the peer.");?>
|
|
420
|
</td>
|
|
421
|
</tr>
|
|
422
|
<tr>
|
|
423
|
<td width="22%" valign="top" class="vncell"><?=gettext("Auto-exclude LAN address"); ?></td>
|
|
424
|
<td width="78%" class="vtable">
|
|
425
|
<input name="noshuntlaninterfaces" type="checkbox" id="noshuntlaninterfaces" value="yes" <?php if ($pconfig['noshuntlaninterfaces'] != true) echo "checked=\"checked\""; ?> />
|
|
426
|
<strong><?=gettext("Enable bypass for LAN interface IP"); ?></strong>
|
|
427
|
<br />
|
|
428
|
<?=gettext("Exclude traffic from LAN subnet to LAN IP address from IPsec."); ?>
|
|
429
|
</td>
|
|
430
|
</tr>
|
|
431
|
<tr>
|
|
432
|
<td width="22%" valign="top"> </td>
|
|
433
|
<td width="78%">
|
|
434
|
<input name="submit" type="submit" class="formbtn" value="<?=gettext("Save"); ?>" />
|
|
435
|
</td>
|
|
436
|
</tr>
|
|
437
|
</table>
|
|
438
|
</div>
|
|
439
|
</td>
|
|
440
|
</tr>
|
|
441
|
</table>
|
|
442
|
</form>
|
|
443
|
<?php include("fend.inc"); ?>
|
|
444
|
</body>
|
|
445
|
</html>
|
