#!/usr/local/bin/php
.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
require("guiconfig.inc");
if (!is_array($config['pptpd']['radius'])) {
$config['pptpd']['radius'] = array();
}
$pptpcfg = &$config['pptpd'];
$pconfig['remoteip'] = $pptpcfg['remoteip'];
$pconfig['localip'] = $pptpcfg['localip'];
$pconfig['redir'] = $pptpcfg['redir'];
$pconfig['mode'] = $pptpcfg['mode'];
$pconfig['req128'] = isset($pptpcfg['req128']);
$pconfig['radiusenable'] = isset($pptpcfg['radius']['enable']);
$pconfig['radacct_enable'] = isset($pptpcfg['radius']['accounting']);
$pconfig['radiusserver'] = $pptpcfg['radius']['server'];
$pconfig['radiussecret'] = $pptpcfg['radius']['secret'];
if ($_POST) {
unset($input_errors);
$pconfig = $_POST;
/* input validation */
if ($_POST['mode'] == "server") {
$reqdfields = explode(" ", "localip remoteip");
$reqdfieldsn = explode(",", "Server address,Remote start address");
if ($_POST['radiusenable']) {
$reqdfields = array_merge($reqdfields, explode(" ", "radiusserver radiussecret"));
$reqdfieldsn = array_merge($reqdfieldsn,
explode(",", "RADIUS server address,RADIUS shared secret"));
}
do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
if (($_POST['localip'] && !is_ipaddr($_POST['localip']))) {
$input_errors[] = "A valid server address must be specified.";
}
if (($_POST['subnet'] && !is_ipaddr($_POST['remoteip']))) {
$input_errors[] = "A valid remote start address must be specified.";
}
if (($_POST['radiusserver'] && !is_ipaddr($_POST['radiusserver']))) {
$input_errors[] = "A valid RADIUS server address must be specified.";
}
if (!$input_errors) {
$_POST['remoteip'] = $pconfig['remoteip'] = gen_subnet($_POST['remoteip'], $g['pptp_subnet']);
$subnet_start = ip2long($_POST['remoteip']);
$subnet_end = ip2long($_POST['remoteip']) + $g['n_pptp_units'] - 1;
if ((ip2long($_POST['localip']) >= $subnet_start) &&
(ip2long($_POST['localip']) <= $subnet_end)) {
$input_errors[] = "The specified server address lies in the remote subnet.";
}
if ($_POST['localip'] == $config['interfaces']['lan']['ipaddr']) {
$input_errors[] = "The specified server address is equal to the LAN interface address.";
}
}
} else if ($_POST['mode'] == "redir") {
$reqdfields = explode(" ", "redir");
$reqdfieldsn = explode(",", "PPTP redirection target address");
do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
if (($_POST['redir'] && !is_ipaddr($_POST['redir']))) {
$input_errors[] = "A valid target address must be specified.";
}
}
if (!$input_errors) {
$pptpcfg['remoteip'] = $_POST['remoteip'];
$pptpcfg['redir'] = $_POST['redir'];
$pptpcfg['localip'] = $_POST['localip'];
$pptpcfg['mode'] = $_POST['mode'];
$pptpcfg['req128'] = $_POST['req128'] ? true : false;
$pptpcfg['radius']['enable'] = $_POST['radiusenable'] ? true : false;
$pptpcfg['radius']['accounting'] = $_POST['radacct_enable'] ? true : false;
$pptpcfg['radius']['server'] = $_POST['radiusserver'];
$pptpcfg['radius']['secret'] = $_POST['radiussecret'];
if (($pconfig['mode'] == "server")) {
/*
* traverse ruleset. if no PPTP rule is found
* install one.
*/
$found_pptp_rule = 0;
foreach($config['filter']['rule'] as $rule) {
$pos = strpos($rule['descr'], "PPTP");
if ( $pos <> false ) $found_pptp_rule = 1;
}
if($found_pptp_rule == 0) {
/* no PPTP rule found. craete one. */
add_default_pptp_rule();
}
}
write_config();
$retval = 0;
if (!file_exists($d_sysrebootreqd_path)) {
config_lock();
$retval = vpn_pptpd_configure();
config_unlock();
}
$savemsg = get_std_save_message($retval);
if($found_pptp_rule ==0) $savemsg .= " A default PPTP rule has been added to the firewall rules section.";
}
}
?>
<?=gentitle("VPN: PPTP");?>