}
if (is_array($ovpnsrv[$id]['expertmode'])) {
$pconfig['expertmode_options'] = "";
foreach ($ovpnsrv[$id]['expertmode']['option'] as $optent) {
$pconfig['expertmode_options'] .= $optent . "\n";
}
$pconfig['expertmode_options'] = rtrim($pconfig['expertmode_options']);
}
} else {
/* creating - set defaults */
$pconfig = array();
$pconfig['type'] = "tun";
$pconfig['psh_options'] = array();
/* Initialise with some sensible defaults */
$pconfig['authentication_method'] = "rsasig";
$pconfig['port'] = getnxt_port();
$pconfig['proto'] = 'udp';
$pconfig['method'] = 'ovpn';
$pconfig['maxcli'] = '';
$pconfig['crypto'] = 'BF-CBC';
$pconfig['dupcn'] = false;
$pconfig['verb'] = 1;
$pconfig['enable'] = true;
}
if ($_POST) {
unset($input_errors);
unset($check_ipblock);
/* input validation */
$reqdfields = explode(" ", "type bind_iface");
$reqdfieldsn = explode(",", "Tunnel type,Interface binding");
if ($_POST['authentication_method'] == "pre_shared_key") {
if ($ovpnent['type'] != $_POST['type']) {
$input_errors[] = "Delete this interface first before changing the type of the tunnel to " . strtoupper($_POST['type']) . ".";
}
if (!isset($ovpnent['enable']) && !isset($_POST['disabled'])) {
/* check if port number is free, else choose another one */
if (in_array($ovpnent['cport'], used_port_list())) {
$ovpnent['cport'] = getnxt_port();
}
}
} else {
/* Creating a new entry */
$ovpnent = array();
if (!($ovpnent['if'] = getnxt_if($_POST['type']))) {
$input_errors[] = "Run out of devices for a tunnel of type {$_POST['type']}";
}
$ovpnent['cport'] = getnxt_port();
/* double bridging? */
if ($_POST['bridge'] && $_POST['type'] == "tap" && $_POST['authentication_method'] == "rsasig") {
$retval = check_bridging($_POST['bridge']);
if (!empty($retval)) {
$input_errors[] = $retval;
}
}
}
if (!$input_errors) {
$ovpnent['enable'] = isset($_POST['disabled']) ? false : true;
$ovpnent['type'] = $_POST['type'];
$ovpnent['authentication_method'] = $_POST['authentication_method'];
$ovpnent['proto'] = $_POST['proto'];
$ovpnent['sport'] = $_POST['sport'];
$ovpnent['ver'] = $_POST['ver'];
