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<?php
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/*
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* vpn_l2tp.php
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*
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* part of pfSense (https://www.pfsense.org)
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* Copyright (c) 2004-2016 Electric Sheep Fencing, LLC
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* All rights reserved.
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*
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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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*
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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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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgment:
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* "This product includes software developed by the pfSense Project
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* for use in the pfSense® software distribution. (http://www.pfsense.org/).
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*
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* 4. The names "pfSense" and "pfSense Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* coreteam@pfsense.org.
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*
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* 5. Products derived from this software may not be called "pfSense"
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* nor may "pfSense" appear in their names without prior written
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* permission of the Electric Sheep Fencing, LLC.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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*
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* "This product includes software developed by the pfSense Project
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* for use in the pfSense software distribution (http://www.pfsense.org/).
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*
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* THIS SOFTWARE IS PROVIDED BY THE pfSense PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE pfSense PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* 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
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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##|+PRIV
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##|*IDENT=page-vpn-vpnl2tp
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##|*NAME=VPN: L2TP
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##|*DESCR=Allow access to the 'VPN: L2TP' page.
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##|*MATCH=vpn_l2tp.php*
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##|-PRIV
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require_once("guiconfig.inc");
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require_once("vpn.inc");
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if (!is_array($config['l2tp']['radius'])) {
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$config['l2tp']['radius'] = array();
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}
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$l2tpcfg = &$config['l2tp'];
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$pconfig['remoteip'] = $l2tpcfg['remoteip'];
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$pconfig['localip'] = $l2tpcfg['localip'];
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$pconfig['l2tp_subnet'] = $l2tpcfg['l2tp_subnet'];
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$pconfig['mode'] = $l2tpcfg['mode'];
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$pconfig['interface'] = $l2tpcfg['interface'];
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$pconfig['l2tp_dns1'] = $l2tpcfg['dns1'];
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$pconfig['l2tp_dns2'] = $l2tpcfg['dns2'];
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$pconfig['radiusenable'] = isset($l2tpcfg['radius']['enable']);
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$pconfig['radacct_enable'] = isset($l2tpcfg['radius']['accounting']);
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$pconfig['radiusserver'] = $l2tpcfg['radius']['server'];
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$pconfig['radiussecret'] = $l2tpcfg['radius']['secret'];
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$pconfig['radiusissueips'] = isset($l2tpcfg['radius']['radiusissueips']);
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$pconfig['n_l2tp_units'] = $l2tpcfg['n_l2tp_units'];
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$pconfig['paporchap'] = $l2tpcfg['paporchap'];
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$pconfig['secret'] = $l2tpcfg['secret'];
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if ($_POST) {
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unset($input_errors);
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$pconfig = $_POST;
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/* input validation */
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if ($_POST['mode'] == "server") {
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$reqdfields = explode(" ", "localip remoteip");
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$reqdfieldsn = array(gettext("Server address"), gettext("Remote start address"));
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if ($_POST['radiusenable']) {
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$reqdfields = array_merge($reqdfields, explode(" ", "radiusserver radiussecret"));
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$reqdfieldsn = array_merge($reqdfieldsn,
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array(gettext("RADIUS server address"), gettext("RADIUS shared secret")));
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}
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do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);
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if (($_POST['localip'] && !is_ipaddr($_POST['localip']))) {
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$input_errors[] = gettext("A valid server address must be specified.");
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}
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if (is_ipaddr_configured($_POST['localip'])) {
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$input_errors[] = gettext("'Server address' parameter should NOT be set to any IP address currently in use on this firewall.");
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}
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if (($_POST['l2tp_subnet'] && !is_ipaddr($_POST['remoteip']))) {
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$input_errors[] = gettext("A valid remote start address must be specified.");
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}
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if (($_POST['radiusserver'] && !is_ipaddr($_POST['radiusserver']))) {
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$input_errors[] = gettext("A valid RADIUS server address must be specified.");
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}
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if ($_POST['secret'] != $_POST['secret_confirm']) {
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$input_errors[] = gettext("Secret and confirmation must match");
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}
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if ($_POST['radiussecret'] != $_POST['radiussecret_confirm']) {
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$input_errors[] = gettext("RADIUS secret and confirmation must match");
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}
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if (!is_numericint($_POST['n_l2tp_units']) || $_POST['n_l2tp_units'] > 255) {
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$input_errors[] = gettext("Number of L2TP users must be between 1 and 255");
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}
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/* if this is an AJAX caller then handle via JSON */
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if (isAjax() && is_array($input_errors)) {
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input_errors2Ajax($input_errors);
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exit;
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}
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if (!$input_errors) {
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$_POST['remoteip'] = $pconfig['remoteip'] = gen_subnet($_POST['remoteip'], $_POST['l2tp_subnet']);
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if (is_inrange_v4($_POST['localip'], $_POST['remoteip'], ip_after($_POST['remoteip'], $_POST['n_l2tp_units'] - 1))) {
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$input_errors[] = gettext("The specified server address lies in the remote subnet.");
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}
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if ($_POST['localip'] == get_interface_ip("lan")) {
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$input_errors[] = gettext("The specified server address is equal to the LAN interface address.");
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}
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}
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}
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/* if this is an AJAX caller then handle via JSON */
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if (isAjax() && is_array($input_errors)) {
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input_errors2Ajax($input_errors);
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exit;
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}
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if (!$input_errors) {
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$l2tpcfg['remoteip'] = $_POST['remoteip'];
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$l2tpcfg['localip'] = $_POST['localip'];
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$l2tpcfg['l2tp_subnet'] = $_POST['l2tp_subnet'];
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$l2tpcfg['mode'] = $_POST['mode'];
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$l2tpcfg['interface'] = $_POST['interface'];
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$l2tpcfg['n_l2tp_units'] = $_POST['n_l2tp_units'];
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$l2tpcfg['radius']['server'] = $_POST['radiusserver'];
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if ($_POST['radiussecret'] != DMYPWD) {
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$l2tpcfg['radius']['secret'] = $_POST['radiussecret'];
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}
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if ($_POST['secret'] != DMYPWD) {
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$l2tpcfg['secret'] = $_POST['secret'];
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}
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$l2tpcfg['paporchap'] = $_POST['paporchap'];
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if ($_POST['l2tp_dns1'] == "") {
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if (isset($l2tpcfg['dns1'])) {
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unset($l2tpcfg['dns1']);
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}
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} else {
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$l2tpcfg['dns1'] = $_POST['l2tp_dns1'];
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}
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if ($_POST['l2tp_dns2'] == "") {
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if (isset($l2tpcfg['dns2'])) {
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unset($l2tpcfg['dns2']);
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}
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} else {
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$l2tpcfg['dns2'] = $_POST['l2tp_dns2'];
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}
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if ($_POST['radiusenable'] == "yes") {
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$l2tpcfg['radius']['enable'] = true;
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} else {
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unset($l2tpcfg['radius']['enable']);
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}
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if ($_POST['radacct_enable'] == "yes") {
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$l2tpcfg['radius']['accounting'] = true;
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} else {
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unset($l2tpcfg['radius']['accounting']);
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}
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if ($_POST['radiusissueips'] == "yes") {
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$l2tpcfg['radius']['radiusissueips'] = true;
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} else {
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unset($l2tpcfg['radius']['radiusissueips']);
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}
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write_config();
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$retval = 0;
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$retval = vpn_l2tp_configure();
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$savemsg = get_std_save_message($retval);
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/* if ajax is calling, give them an update message */
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if (isAjax()) {
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print_info_box($savemsg, 'success');
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}
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}
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}
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$pgtitle = array(gettext("VPN"), gettext("L2TP"), gettext("Configuration"));
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$shortcut_section = "l2tps";
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include("head.inc");
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if ($input_errors) {
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print_input_errors($input_errors);
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}
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if ($savemsg) {
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print_info_box($savemsg, 'success');
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}
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$tab_array = array();
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$tab_array[] = array(gettext("Configuration"), true, "vpn_l2tp.php");
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$tab_array[] = array(gettext("Users"), false, "vpn_l2tp_users.php");
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display_top_tabs($tab_array);
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$form = new Form();
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$section = new Form_Section("Enable L2TP");
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$section->addInput(new Form_Checkbox(
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'mode',
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'Enable',
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'Enable L2TP server',
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($pconfig['mode'] == "server"),
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'server'
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));
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$form->add($section);
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$iflist = array();
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$interfaces = get_configured_interface_with_descr();
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foreach ($interfaces as $iface => $ifacename) {
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$iflist[$iface] = $ifacename;
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}
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$section = new Form_Section("Configuration");
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$section->addClass('toggle-l2tp-enable');
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$section->addInput(new Form_Select(
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'interface',
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'Interface',
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$pconfig['interface'],
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$iflist
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));
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264
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$section->addInput(new Form_Input(
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'localip',
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'Server address',
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'text',
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$pconfig['localip']
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))->setHelp('Enter the IP address the L2TP server should give to clients for use as their "gateway". ' . '<br />' .
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'Typically this is set to an unused IP just outside of the client range.' . '<br /><br />' .
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'NOTE: This should NOT be set to any IP address currently in use on this firewall.');
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273
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$section->addInput(new Form_IpAddress(
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'remoteip',
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'Remote address range',
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$pconfig['remoteip']
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277
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))->addMask(l2tp_subnet, $pconfig['l2tp_subnet'])
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->setHelp('Specify the starting address for the client IP address subnet.');
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280
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$section->addInput(new Form_Select(
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'n_l2tp_units',
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'Number of L2TP users',
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283
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$pconfig['n_l2tp_units'],
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array_combine(range(1, 255, 1), range(1, 255, 1))
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));
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286
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287
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$section->addPassword(new Form_Input(
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'secret',
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289
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'Secret',
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290
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'password',
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291
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$pconfig['secret']
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))->setHelp('Specify optional secret shared between peers. Required on some devices/setups.');
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293
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294
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$section->addInput(new Form_Select(
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'paporchap',
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'Authentication type',
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297
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$pconfig['paporchap'],
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298
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array(
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299
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'chap' => 'CHAP',
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300
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'chap-msv2' => 'MS-CHAPv2',
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301
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'pap' => 'PAP'
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)
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))->setHelp('Specifies the protocol to use for authentication.');
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304
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305
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$section->addInput(new Form_Input(
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'l2tp_dns1',
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307
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'Primary L2TP DNS server',
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308
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'text',
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309
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$pconfig['l2tp_dns1']
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310
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));
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311
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312
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$section->addInput(new Form_Input(
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313
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'l2tp_dns2',
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314
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'Secondary L2TP DNS server',
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315
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'text',
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316
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$pconfig['l2tp_dns2']
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317
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));
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318
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319
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$form->add($section);
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320
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321
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$section = new Form_Section("RADIUS");
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322
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$section->addClass('toggle-l2tp-enable');
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323
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324
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$section->addInput(new Form_Checkbox(
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325
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'radiusenable',
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326
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'Enable',
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327
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'Use a RADIUS server for authentication',
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328
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$pconfig['radiusenable']
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329
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))->setHelp('When set, all users will be authenticated using the RADIUS server specified below. The local user database will not be used.');
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330
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331
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$section->addInput(new Form_Checkbox(
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'radacct_enable',
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'Accounting',
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334
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'Enable RADIUS accounting',
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335
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$pconfig['radacct_enable']
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))->setHelp('Sends accounting packets to the RADIUS server.');
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338
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$section->addInput(new Form_IpAddress(
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'radiusserver',
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'Server',
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341
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$pconfig['radiusserver']
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342
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))->setHelp('Enter the IP address of the RADIUS server.');
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343
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344
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$section->addPassword(new Form_Input(
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345
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'radiussecret',
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346
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'Secret',
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347
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'password',
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348
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$pconfig['radiussecret']
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349
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))->setHelp('Enter the shared secret that will be used to authenticate to the RADIUS server.');
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350
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351
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$section->addInput(new Form_Checkbox(
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352
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'radiusissueips',
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353
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'RADIUS issued IPs',
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354
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'Issue IP Addresses via RADIUS server.',
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355
|
$pconfig['radiusissueips']
|
|
356
|
));
|
|
357
|
|
|
358
|
$form->add($section);
|
|
359
|
|
|
360
|
print($form);
|
|
361
|
?>
|
|
362
|
<div class="infoblock blockopen">
|
|
363
|
<?php
|
|
364
|
print_info_box(gettext("Don't forget to add a firewall rule to permit traffic from L2TP clients."), 'info', false);
|
|
365
|
?>
|
|
366
|
</div>
|
|
367
|
|
|
368
|
<script type="text/javascript">
|
|
369
|
//<![CDATA[
|
|
370
|
events.push(function() {
|
|
371
|
|
|
372
|
function setL2TP () {
|
|
373
|
hide = ! $('#mode').prop('checked');
|
|
374
|
|
|
375
|
hideClass('toggle-l2tp-enable', hide);
|
|
376
|
}
|
|
377
|
|
|
378
|
function setRADIUS () {
|
|
379
|
hide = ! $('#radiusenable').prop('checked');
|
|
380
|
|
|
381
|
hideCheckbox('radacct_enable', hide);
|
|
382
|
hideInput('radiusserver', hide);
|
|
383
|
hideInput('radiussecret', hide);
|
|
384
|
hideCheckbox('radiusissueips', hide);
|
|
385
|
}
|
|
386
|
|
|
387
|
// on-click
|
|
388
|
$('#mode').click(function () {
|
|
389
|
setL2TP();
|
|
390
|
});
|
|
391
|
|
|
392
|
$('#radiusenable').click(function () {
|
|
393
|
setRADIUS();
|
|
394
|
});
|
|
395
|
|
|
396
|
// on-page-load
|
|
397
|
setRADIUS();
|
|
398
|
setL2TP();
|
|
399
|
|
|
400
|
});
|
|
401
|
//]]>
|
|
402
|
</script>
|
|
403
|
|
|
404
|
<?php include("foot.inc")?>
|
