[EXPERIMENTAL] [PHP SCRIPT] WIFI-MAC Spoofer v1.1 - Optimus One, P500, V General

Hi.
I wasn't too sure, if I should post this into the development area, I think it fits more into general.
Introduction
According to this thread, I tried to write a little script which lets one spoof his wi-fi MAC address unindependently from any adb shell or usb connection. It's very experimental and might not work that properly. If I try it at home, my router somehow shuts down any incoming wi-fi connection in the whole network and turns the internet off. :/ But the script itself actually SEEMS to change the MAC address (according to what the wi-fi settings say).
I am not responsible for any damage to your phone. However, you can reset the changed MAC address anyway, if something bad happens.
Please note, that you are only allowed to use this script in those networks where you have the permission to do so. Especially the use of the "MAC takeover" function might be illegal in different networks.
Requirements
You will need SL4A (Android Scripting Environment) and PFA (PHP for Android). Check out: http://www.phpforandroid.net/#requirements
The script
PHP:
<?php
// config: config-file and tmp-file
$cnf = "/etc/wl/nvram.txt";
$tmp = "/sdcard/nvram-tmp.txt";
// this is my very dirty solution to replace the actual config file with a new edited one. root needed. might not work everywhere.
$cmd = 'su -c "mount -o rw,remount -t yaffs2 /dev/block/mtdblock4 /system; mv -f \"'.$tmp.'\" \"'.$cnf.'\"; chmod 644 \"'.$cnf.'\"; mount -o ro,remount -t yaffs2 /dev/block/mtdblock4 /system"';
// access android api
require_once("Android.php");
$droid = new Android();
// get config file src
$src = file_get_contents($cnf);
// check, if mac address was already spoofed before
preg_match("|macaddr=([a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2})|i", $src, $res);
$spoofed = false;
$macaddr = "13:57:9B:DF:13:37";
if(isset($res[1]))
{
$spoofed = true;
$macaddr = $res[1];
}
// pre-configurations
$title = "LG-OO-P500 MAC Spoofer";
$action = "start";
// main loop for actions
while(true)
{
switch($action)
{
// start
case "start":
$msg = "Your MAC address is currently set on default.";
// currently spoofed mac address?
if($spoofed)
{
$msg = "Your currently spoofed MAC address is: ".$macaddr;
}
$droid->makeToast($msg);
// create dialog
$droid->dialogCreateAlert($title);
$droid->dialogSetItems(array("Change MAC address", "MAC takeover", "Reset MAC address", "Exit"));
$droid->dialogShow();
// determine next action
$res = $droid->dialogGetResponse();
$actions = array("spoof", "scan", "reset", "exit");
$action = $actions[$res["result"]->item];
$droid->dialogDismiss();
break;
// spoof and reset action
case "spoof": case "scan": case "reset":
// get user input for new mac addr
switch($action)
{
case "spoof":
while(true)
{
$res = $droid->dialogGetInput($title, "Insert new MAC address", $macaddr);
$macaddr = strtoupper($res["result"]);
if(preg_match("|[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}|i", $macaddr))
{
break;
}
$droid->makeToast("Invalid MAC address. (example: 00:00:00:00:00:00 to FF:FF:FF:FF:FF:FF)");
}
$rpl = "macaddr=".$macaddr;
break;
case "scan":
$droid->dialogCreateSpinnerProgress("Now scanning network...");
// scan for MACs and filter ip and MAC addresses from the output
exec("arp -a", $out);
preg_match_all("|\(([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+)\) at ([a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2})|i", strtoupper(implode("\r\n", $out)), $res);
$droid->dialogDismiss();
// create new array
$arr = array();
for($i = 0; $i != count($res[1]); $i++)
{
$arr["list"][] = $res[1][$i]."\n=> ".$res[2][$i];
$arr["ip"][] = $res[1][$i];
$arr["mac"][] = $res[2][$i];
}
$droid->dialogCreateAlert("Found ".count($arr)." individuals... please choose:");
$droid->dialogSetItems($arr["list"]);
$droid->dialogShow();
$res = $droid->dialogGetResponse();
$rpl = "macaddr=".$arr["mac"][$res["result"]->item];
break;
case "reset": default:
$rpl = null;
break;
}
// edit src
($spoofed || empty($rpl)) ? $src = rtrim(preg_replace("|macaddr=.*|i", $rpl, $src)) : $src = rtrim($src)."\n".$rpl;
// disable wifi
$droid->toggleWifiState(false);
// save tmp file
$h = fopen($tmp, "w");
fwrite($h, $src);
fclose($h);
// overwrite with root privileges
exec($cmd);
$droid->makeToast("Operation complete.");
$action = "exit";
break;
// exit
case "exit":
// enable wlan and exit
$droid->toggleWifiState(true);
$droid->exit();
exit();
break;
}
}
I am really not sure, if it is going to work for you. I tested it under devoid #forever (CM7, 2.3.4). Maybe other ROMs and other smartphones are going to behave different. And to be honest, for me it didn't work that good either until now.
If you are having trouble, you can also try to reboot after spoofing.
Have fun trying.

---

Is this all this about adding macaddr in nvram.txt as we had this discussion earlier.
Nice work.
Sent from my LG-P500 using XDA Premium App

---

I added another very experimental function which I named "MAC takeover". It allows the user to scan the network for all connected MAC addresses and afterwards display and finally spoof one of those addresses.
The whole script might be buggy, so tell me if something doesn't work properly.
Please note, that you are only allowed to use this script in those networks where you have the permission to do so. Especially the use of the "MAC takeover" function might be illegal in different networks.
See the changes above in the source code.
Is this all this about adding macaddr in nvram.txt as we had this discussion earlier.
Click to expand...
Click to collapse
Yup, but it makes things a lot easier, because you just need your phone to change the MAC address. Additionally it has something like an interface.

---

I have a bash script somewhere doing the same (except for takeover... nasty boy ). Will post it when I find it. Should be a hell lot easier to use (just bash, no weird stuff needed.)

---

This is actually quite easy as well, you just need PHP installed on android. However, I'm also very interested in that bash script, please share!