mirror of
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470 lines
20 KiB
PHP
470 lines
20 KiB
PHP
<?php
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/*
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vpn_l2tp.php
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part of pfSense
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Copyright (C) 2005 Scott Ullrich (sullrich@gmail.com)
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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-vpnl2tp
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##|*NAME=VPN: VPN L2TP page
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##|*DESCR=Allow access to the 'VPN: VPN L2TP' page.
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##|*MATCH=vpn_l2tp.php*
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##|-PRIV
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$pgtitle = array(gettext("VPN"), gettext("L2TP"), gettext("L2TP"));
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require("guiconfig.inc");
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require_once("vpn.inc");
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if (!is_array($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['wins'] = $l2tpcfg['wins'];
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$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'] = $l2tpcfg['radius']['radiusissueips'];
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$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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$input_errors[] = gettext("A valid server address must be specified.");
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}
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if (($_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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$input_errors[] = gettext("A valid RADIUS server address must be specified.");
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}
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/* if this is an AJAX caller then handle via JSON */
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if(isAjax() && is_array($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'], $_POST['l2tp_subnet']);
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$subnet_start = ip2ulong($_POST['remoteip']);
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$subnet_end = ip2ulong($_POST['remoteip']) + $_POST['n_l2tp_units'] - 1;
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if ((ip2ulong($_POST['localip']) >= $subnet_start) &&
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(ip2ulong($_POST['localip']) <= $subnet_end)) {
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$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'] = $_POST['radiusserver'];
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$l2tpcfg['radius']['secret'] = $_POST['radiussecret'];
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$l2tpcfg['secret'] = $_POST['secret'];
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if($_POST['wins'])
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$l2tpcfg['wins'] = $_POST['wins'];
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else
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unset($l2tpcfg['wins']);
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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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} else
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$l2tpcfg['dns1'] = $_POST['l2tp_dns1'];
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if ($_POST['l2tp_dns2'] == "") {
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if (isset($l2tpcfg['dns2']))
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unset($l2tpcfg['dns2']);
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} else
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$l2tpcfg['dns2'] = $_POST['l2tp_dns2'];
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if($_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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if($_POST['radacct_enable'] == "yes")
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$l2tpcfg['radius']['accounting'] = true;
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else
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unset($l2tpcfg['radius']['accounting']);
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if($_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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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_np($savemsg);
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}
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}
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include("head.inc");
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?>
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<body link="#0000CC" vlink="#0000CC" alink="#0000CC" onload="<?= $jsevents["body"]["onload"] ?>">
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<?php include("fbegin.inc"); ?>
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<script type="text/javascript">
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<!--
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function get_radio_value(obj)
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{
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for (i = 0; i < obj.length; i++) {
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if (obj[i].checked)
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return obj[i].value;
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}
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return null;
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}
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function enable_change(enable_over) {
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if ((get_radio_value(document.iform.mode) == "server") || enable_over) {
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document.iform.remoteip.disabled = 0;
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document.iform.localip.disabled = 0;
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document.iform.l2tp_subnet.disabled = 0;
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document.iform.radiusenable.disabled = 0;
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document.iform.radiusissueips.disabled = 0;
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document.iform.paporchap.disabled = 0;
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document.iform.interface.disabled = 0;
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document.iform.n_l2tp_units.disabled = 0;
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document.iform.secret.disabled = 0;
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document.iform.l2tp_dns1.disabled = 0;
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document.iform.l2tp_dns2.disabled = 0;
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/* fix colors */
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document.iform.remoteip.style.backgroundColor = '#FFFFFF';
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document.iform.localip.style.backgroundColor = '#FFFFFF';
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document.iform.l2tp_subnet.style.backgroundColor = '#FFFFFF';
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document.iform.radiusenable.style.backgroundColor = '#FFFFFF';
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document.iform.radiusissueips.style.backgroundColor = '#FFFFFF';
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document.iform.paporchap.style.backgroundColor = '#FFFFFF';
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document.iform.interface.style.backgroundColor = '#FFFFFF';
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document.iform.n_l2tp_units.style.backgroundColor = '#FFFFFF';
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document.iform.secret.style.backgroundColor = '#FFFFFF';
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if (document.iform.radiusenable.checked || enable_over) {
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document.iform.radacct_enable.disabled = 0;
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document.iform.radiusserver.disabled = 0;
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document.iform.radiussecret.disabled = 0;
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document.iform.radiusissueips.disabled = 0;
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/* fix colors */
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document.iform.radacct_enable.style.backgroundColor = '#FFFFFF';
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document.iform.radiusserver.style.backgroundColor = '#FFFFFF';
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document.iform.radiussecret.style.backgroundColor = '#FFFFFF';
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document.iform.radiusissueips.style.backgroundColor = '#FFFFFF';
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} else {
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document.iform.radacct_enable.disabled = 1;
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document.iform.radiusserver.disabled = 1;
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document.iform.radiussecret.disabled = 1;
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document.iform.radiusissueips.disabled = 1;
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/* fix colors */
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document.iform.radacct_enable.style.backgroundColor = '#D4D0C8';
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document.iform.radiusserver.style.backgroundColor = '#D4D0C8';
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document.iform.radiussecret.style.backgroundColor = '#D4D0C8';
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document.iform.radiusissueips.style.backgroundColor = '#D4D0C8';
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}
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} else {
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document.iform.interface.disabled = 1;
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document.iform.n_l2tp_units.disabled = 1;
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document.iform.l2tp_subnet.disabled = 1;
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document.iform.l2tp_dns1.disabled = 1;
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document.iform.l2tp_dns2.disabled = 1;
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document.iform.paporchap.disabled = 1;
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document.iform.remoteip.disabled = 1;
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document.iform.localip.disabled = 1;
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document.iform.radiusenable.disabled = 1;
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document.iform.radacct_enable.disabled = 1;
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document.iform.radiusserver.disabled = 1;
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document.iform.radiussecret.disabled = 1;
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document.iform.radiusissueips.disabled = 1;
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document.iform.secret.disabled = 1;
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/* fix colors */
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document.iform.interface.style.backgroundColor = '#D4D0C8';
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document.iform.n_l2tp_units.style.backgroundColor = '#D4D0C8';
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document.iform.l2tp_subnet.style.backgroundColor = '#D4D0C8';
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document.iform.paporchap.style.backgroundColor = '#D4D0C8';
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document.iform.remoteip.style.backgroundColor = '#D4D0C8';
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document.iform.localip.style.backgroundColor = '#D4D0C8';
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document.iform.radiusenable.style.backgroundColor = '#D4D0C8';
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document.iform.radacct_enable.style.backgroundColor = '#D4D0C8';
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document.iform.radiusserver.style.backgroundColor = '#D4D0C8';
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document.iform.radiussecret.style.backgroundColor = '#D4D0C8';
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document.iform.radiusissueips.style.backgroundColor = '#D4D0C8';
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document.iform.secret.style.backgroundColor = '#D4D0C8';
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}
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}
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//-->
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</script>
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<form action="vpn_l2tp.php" method="post" name="iform" id="iform">
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<?php if ($input_errors) print_input_errors($input_errors); ?>
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<?php if ($savemsg) print_info_box($savemsg); ?>
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<div id="inputerrors"></div>
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<table width="100%" border="0" cellpadding="0" cellspacing="0">
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<tr><td class="tabnavtbl">
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<?php
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$tab_array = array();
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$tab_array[0] = array(gettext("Configuration"), true, "vpn_l2tp.php");
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$tab_array[1] = array(gettext("Users"), false, "vpn_l2tp_users.php");
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display_top_tabs($tab_array);
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?>
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</td></tr>
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<tr>
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<td>
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<div id="mainarea">
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<table class="tabcont" width="100%" border="0" cellpadding="6" cellspacing="0">
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<tr>
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<td width="22%" valign="top" class="vtable"> </td>
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<td width="78%" class="vtable">
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<input name="mode" type="radio" onclick="enable_change(false)" value="off"
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<?php if (($pconfig['mode'] != "server") && ($pconfig['mode'] != "redir")) echo "checked=\"checked\"";?> />
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<?=gettext("Off"); ?></td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vtable"> </td>
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<td width="78%" class="vtable">
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<input type="radio" name="mode" value="server" onclick="enable_change(false)" <?php if ($pconfig['mode'] == "server") echo "checked=\"checked\""; ?> />
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<?=gettext("Enable l2tp server"); ?></td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncell"><b><?=gettext("Interface");?></b></td>
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<td width="78%" valign="top" class="vtable">
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<select name="interface" class="formselect" id="interface">
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<?php
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$interfaces = get_configured_interface_with_descr();
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foreach ($interfaces as $iface => $ifacename):
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?>
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<option value="<?=$iface;?>" <?php if ($iface == $pconfig['interface']) echo "selected"; ?>>
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<?=htmlspecialchars($ifacename);?>
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</option>
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<?php endforeach; ?>
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</select> <br />
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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("Server address");?></td>
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<td width="78%" class="vtable">
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<?=$mandfldhtml;?><input name="localip" type="text" class="formfld unknown" id="localip" size="20" value="<?=htmlspecialchars($pconfig['localip']);?>" />
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<br/>
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<?=gettext("Enter the IP address the L2TP server should give to clients for use as their \"gateway\""); ?>.
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<br/>
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<?=gettext("Typically this is set to an unused IP just outside of the client range"); ?>.
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<br/>
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<br/>
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<?=gettext("NOTE: This should NOT be set to any IP address currently in use on this firewall"); ?>.</td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncellreq"><?=gettext("Remote address range");?></td>
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<td width="78%" class="vtable">
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<?=$mandfldhtml;?><input name="remoteip" type="text" class="formfld unknown" id="remoteip" size="20" value="<?=htmlspecialchars($pconfig['remoteip']);?>" />
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<br />
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<?=gettext("Specify the starting address for the client IP address subnet.");?><br />
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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("Subnet netmask"); ?></td>
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<td width="78%" class="vtable">
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<select id="l2tp_subnet" name="l2tp_subnet">
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<?php
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for($x=0; $x<33; $x++) {
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if($x == $pconfig['l2tp_subnet'])
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$SELECTED = " SELECTED";
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else
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$SELECTED = "";
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echo "<option value=\"{$x}\"{$SELECTED}>{$x}</option>\n";
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}
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?>
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</select>
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<br><?=gettext("Hint:"); ?> 24 <?=gettext("is"); ?> 255.255.255.0
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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("Number of L2TP users"); ?></td>
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<td width="78%" class="vtable">
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<select id="n_l2tp_units" name="n_l2tp_units">
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<?php
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for($x=0; $x<255; $x++) {
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if($x == $pconfig['n_l2tp_units'])
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$SELECTED = " SELECTED";
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else
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$SELECTED = "";
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echo "<option value=\"{$x}\"{$SELECTED}>{$x}</option>\n";
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}
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?>
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</select>
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<br><?=gettext("Hint:"); ?> 10 <?=gettext("is ten L2TP clients"); ?>
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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("Secret");?></td>
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<td width="78%" class="vtable">
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<input type="password" name="secret" id="secret" class="formfld pwd" value="<? echo htmlspecialchars($pconfig['secret']); ?>">
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<br />
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<?=gettext("Specify optional secret shared between peers. Required on some devices/setups.");?><br />
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</td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncellreq"><?=gettext("Encryption type");?></td>
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<td width="78%" class="vtable">
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<?=$mandfldhtml;?><select name="paporchap" id="paporchap">
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<option value='chap'<?php if($pconfig['paporchap'] == "chap") echo " SELECTED"; ?>><?=gettext("CHAP"); ?></option>
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<option value='pap'<?php if($pconfig['paporchap'] == "pap") echo " SELECTED"; ?>><?=gettext("PAP"); ?></option>
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</select>
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<br />
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<?=gettext("Specifies which protocol to use for authentication.");?><br />
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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("L2TP DNS Servers"); ?></td>
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<td width="78%" class="vtable">
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<?=$mandfldhtml;?><input name="l2tp_dns1" type="text" class="formfld unknown" id="l2tp_dns1" size="20" value="<?=htmlspecialchars($pconfig['l2tp_dns1']);?>">
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<br>
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<input name="l2tp_dns2" type="text" class="formfld unknown" id="l2tp_dns2" size="20" value="<?=htmlspecialchars($pconfig['l2tp_dns2']);?>">
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<br>
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<?=gettext("primary and secondary DNS servers assigned to L2TP clients"); ?><br>
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</td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncell"><?=gettext("WINS Server"); ?></td>
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<td width="78%" valign="top" class="vtable">
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<input name="wins" class="formfld unknown" id="wins" size="20" value="<?=htmlspecialchars($pconfig['wins']);?>">
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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("RADIUS"); ?></td>
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<td width="78%" class="vtable">
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|
<input name="radiusenable" type="checkbox" id="radiusenable" onclick="enable_change(false)" value="yes" <?php if ($pconfig['radiusenable']) echo "checked=\"checked\""; ?> />
|
|
<strong> <?=gettext("Use a RADIUS server for authentication");?><br /></strong>
|
|
<?=gettext("When set, all users will be authenticated using the RADIUS server specified below. The local user database will not be used.");?><br />
|
|
<br />
|
|
<input name="radacct_enable" type="checkbox" id="radacct_enable" onclick="enable_change(false)" value="yes" <?php if ($pconfig['radacct_enable']) echo "checked=\"checked\""; ?> />
|
|
<strong><?=gettext("Enable RADIUS accounting");?></strong><br />
|
|
<?=gettext("Sends accounting packets to the RADIUS server.");?></td>
|
|
</tr>
|
|
<tr>
|
|
<td width="22%" valign="top" class="vncell"><?=gettext("RADIUS server");?></td>
|
|
<td width="78%" class="vtable">
|
|
<input name="radiusserver" type="text" class="formfld unknown" id="radiusserver" size="20" value="<?=htmlspecialchars($pconfig['radiusserver']);?>" />
|
|
<br />
|
|
<?=gettext("Enter the IP address of the RADIUS server.");?></td>
|
|
</tr>
|
|
<tr>
|
|
<td width="22%" valign="top" class="vncell"><?=gettext("RADIUS shared secret");?></td>
|
|
<td width="78%" valign="top" class="vtable">
|
|
<input name="radiussecret" type="password" class="formfld pwd" id="radiussecret" size="20" value="<?=htmlspecialchars($pconfig['radiussecret']);?>" />
|
|
<br />
|
|
<?=gettext("Enter the shared secret that will be used to authenticate to the RADIUS server.");?></td>
|
|
</tr>
|
|
<tr>
|
|
<td width="22%" valign="top" class="vncell"><?=gettext("RADIUS issued IP's");?></td>
|
|
<td width="78%" valign="top" class="vtable">
|
|
<input name="radiusissueips" value="yes" type="checkbox" class="formfld" id="radiusissueips"<?php if(isset($pconfig['radiusissueips'])) echo " checked=\"checked\""; ?> />
|
|
<br />
|
|
<?=gettext("Issue IP Addresses via RADIUS server.");?>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td width="22%" valign="top"> </td>
|
|
<td width="78%">
|
|
<input id="submit" name="Submit" type="submit" class="formbtn" value="<?=gettext("Save"); ?>" onclick="enable_change(true)" />
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td colspan="2">
|
|
<span class="vexpl">
|
|
<strong class="red"><?=gettext("Note:");?></strong><br />
|
|
<?=gettext("Don't forget to add a firewall rule to permit traffic from L2TP clients!");?>
|
|
</span>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
</div>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
</form>
|
|
|
|
<script type="text/javascript">
|
|
enable_change(false);
|
|
</script>
|
|
|
|
<?php include("fend.inc"); ?>
|
|
</body>
|
|
</html>
|