#!/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.
*/
$pgtitle = array("Interfaces", "Assign network ports", "Edit WLAN");
require("guiconfig.inc");
if (!is_array($config['wlans']['wlan']))
$config['wlans']['wlan'] = array();
$a_wlans = &$config['wlans']['wlan'];
$portlist = get_interface_list(false, true, false);
/* if there's only one interface, we can "pre-select" it */
if (count($portlist) == 1) {
$pconfig = array();
foreach ($portlist as $pn => $pv) {
$pconfig['if'] = $pn;
break;
}
}
$id = $_GET['id'];
if (isset($_POST['id']))
$id = $_POST['id'];
if (isset($id) && $a_wlans[$id]) {
$pconfig['if'] = $a_wlans[$id]['if'];
$pconfig['descr'] = $a_wlans[$id]['descr'];
$pconfig['standard'] = $a_wlans[$id]['standard'];
$pconfig['ht'] = isset($a_wlans[$id]['ht']);
$pconfig['mode'] = $a_wlans[$id]['mode'];
$pconfig['ssid'] = $a_wlans[$id]['ssid'];
$pconfig['channel'] = $a_wlans[$id]['channel'];
$pconfig['txpower'] = $a_wlans[$id]['txpower'];
$pconfig['wep_enable'] = isset($a_wlans[$id]['wep']['enable']);
$pconfig['hidessid'] = isset($a_wlans[$id]['hidessid']);
$pconfig['wpamode'] = $a_wlans[$id]['wpa']['mode'];
$pconfig['wpaversion'] = $a_wlans[$id]['wpa']['version'];
$pconfig['wpacipher'] = $a_wlans[$id]['wpa']['cipher'];
$pconfig['wpapsk'] = $a_wlans[$id]['wpa']['psk'];
$pconfig['radiusip'] = $a_wlans[$id]['wpa']['radius']['server'];
$pconfig['radiusauthport'] = $a_wlans[$id]['wpa']['radius']['authport'];
$pconfig['radiusacctport'] = $a_wlans[$id]['wpa']['radius']['acctport'];
$pconfig['radiussecret'] = $a_wlans[$id]['wpa']['radius']['secret'];
if (is_array($a_wlans[$id]['wep']['key'])) {
$i = 1;
foreach ($a_wlans[$id]['wep']['key'] as $wepkey) {
$pconfig['key' . $i] = $wepkey['value'];
if (isset($wepkey['txkey']))
$pconfig['txkey'] = $i;
$i++;
}
if (!isset($wepkey['txkey']))
$pconfig['txkey'] = 1;
}
}
if ($_POST) {
unset($input_errors);
$pconfig = $_POST;
}
/* If a physical interface has been selected at this point, we can
determine the supported standards and channels */
if ($pconfig['if']) {
$wlstandards = wireless_get_standards($pconfig['if']);
$wlchannels = wireless_get_channellist($pconfig['if']);
} else {
$wlstandards = array();
$wlchannels = array();
}
if ($_POST) {
if (!$_POST['chgifonly']) {
/* input validation */
$reqdfields = "if mode ssid channel txpower";
$reqdfieldsn = "Parent interface,Mode,SSID,Channel,Transmit power";
if ($_POST['wpamode'] != "none") {
$reqdfields .= " wpaversion wpacipher";
$reqdfieldsn .= ",WPA version,WPA cipher";
if ($_POST['wpamode'] == "psk") {
$reqdfields .= " wpapsk";
$reqdfieldsn .= ",WPA PSK";
} else if ($_POST['wpamode'] == "enterprise") {
$reqdfields .= " radiusip radiussecret";
$reqdfieldsn .= ",RADIUS IP,RADIUS Shared secret";
}
}
do_input_validation($_POST, explode(" ", $reqdfields), explode(",", $reqdfieldsn), &$input_errors);
if ($_POST['radiusip'] && !is_ipaddr($_POST['radiusip']))
$input_errors[] = "A valid RADIUS IP address must be specified.";
if ($_POST['radiusauthport'] && !is_port($_POST['radiusauthport']))
$input_errors[] = "A valid RADIUS authentication port number must be specified.";
if ($_POST['radiusacctport'] && !is_port($_POST['radiusacctport']))
$input_errors[] = "A valid RADIUS accounting port number must be specified.";
if ($_POST['wpapsk'] && !(strlen($_POST['wpapsk']) >= 8 && strlen($_POST['wpapsk']) <= 63))
$input_errors[] = "The WPA PSK must be between 8 and 63 characters long.";
/* XXX - check whether multiple WLANs are supported on the physical interface */
if (!$input_errors) {
/* if an 11a channel is selected, the mode must be 11a too, and vice versa */
$is_chan_11a = (strpos($wlchannels[$_POST['channel']]['mode'], "11a") !== false);
$is_std_11a = ($_POST['standard'] == "11a" || $_POST['standard'] == "11na");
if ($is_chan_11a && !$is_std_11a)
$input_errors[] = "802.11a channels can only be selected if the standard is set to 802.11(n)a too.";
else if (!$is_chan_11a && $is_std_11a)
$input_errors[] = "802.11(n)a can only be selected if an 802.11a channel is selected too.";
/* currently, WPA is only supported in AP (hostap) mode */
if ($_POST['wpamode'] != "none" && $pconfig['mode'] != "hostap")
$input_errors[] = "WPA is only supported in hostap mode.";
}
if (!$input_errors) {
$wlan = array();
$wlan['if'] = $_POST['if'];
$wlan['descr'] = $_POST['descr'];
$wlan['standard'] = $_POST['standard'];
$wlan['ht'] = $_POST['ht'] ? true : false;
$wlan['mode'] = $_POST['mode'];
$wlan['ssid'] = $_POST['ssid'];
$wlan['channel'] = $_POST['channel'];
$wlan['txpower'] = $_POST['txpower'];
$wlan['wep']['enable'] = $_POST['wep_enable'] ? true : false;
$wlan['hidessid'] = $_POST['hidessid'] ? true : false;
$wlan['wep']['key'] = array();
for ($i = 1; $i <= 4; $i++) {
if ($_POST['key' . $i]) {
$newkey = array();
$newkey['value'] = $_POST['key' . $i];
if ($_POST['txkey'] == $i)
$newkey['txkey'] = true;
$wlan['wep']['key'][] = $newkey;
}
}
$wlan['wpa'] = array();
$wlan['wpa']['mode'] = $_POST['wpamode'];
$wlan['wpa']['version'] = $_POST['wpaversion'];
$wlan['wpa']['cipher'] = $_POST['wpacipher'];
$wlan['wpa']['psk'] = $_POST['wpapsk'];
$wlan['wpa']['radius'] = array();
$wlan['wpa']['radius']['server'] = $_POST['radiusip'];
$wlan['wpa']['radius']['authport'] = $_POST['radiusauthport'];
$wlan['wpa']['radius']['acctport'] = $_POST['radiusacctport'];
$wlan['wpa']['radius']['secret'] = $_POST['radiussecret'];
if (isset($id) && $a_wlans[$id])
$a_wlans[$id] = $wlan;
else
$a_wlans[] = $wlan;
write_config();
touch($d_sysrebootreqd_path);
header("Location: interfaces_wlan.php");
exit;
}
}
}
if (!isset($pconfig['txpower']) || strlen($pconfig['txpower']) == 0)
$pconfig['txpower'] = 17; /* pick a reasonable default */
function wireless_get_standards($if) {
$standards = array();
$fd = popen("/sbin/ifconfig -m $if", "r");
if ($fd) {
while (!feof($fd)) {
$line = trim(fgets($fd));
if (preg_match("/media \S+ mode (11\S+)/", $line, $matches)) {
$standards[] = $matches[1];
}
}
}
return array_unique($standards);
}
function wireless_get_channellist($if) {
$chanlist = array();
/* cannot get channels from physical interface anymore - need a
subinterface. Find out if there is already one for this physical
interface; if not, create one and destroy it again afterwards */
unset($subif);
$fd = popen("/sbin/sysctl -a net.wlan", "r");
if ($fd) {
while (!feof($fd)) {
$line = trim(fgets($fd));
if (preg_match("/^net\.wlan\.(\d+)\.%parent: (\S+)$/", $line, $matches)) {
if ($matches[2] == $if) {
$subif = "wlan" . $matches[1];
break;
}
}
}
pclose($fd);
}
if (!isset($subif)) {
$subif = "wlan999";
mwexec("/sbin/ifconfig wlan999 create wlandev " . escapeshellarg($if));
}
$fd = popen("/sbin/ifconfig $subif list chan", "r");
if ($fd) {
while (!feof($fd)) {
$line = trim(fgets($fd));
/* could have two channels on this line */
$chans = explode("Channel", $line);
foreach ($chans as $chan) {
if (preg_match("/(\d+)\s+:\s+(\d+)\s+MHz\s+(.+)/i", $chan, $matches)) {
$chaninfo = array();
$chaninfo['chan'] = $matches[1];
$chaninfo['freq'] = $matches[2];
$chaninfo['mode'] = trim($matches[3]);
$chanlist[$chaninfo['chan']] = $chaninfo;
}
}
}
pclose($fd);
}
if ($subif == "wlan999")
mwexec("/sbin/ifconfig wlan999 destroy");
ksort($chanlist, SORT_NUMERIC);
return $chanlist;
}
?>