How to get the wifi configuration file location in android

Question

I'm developing an app that backup the wifi configuration from any android device (rooted) so I want to know how to get the file location in the android device so can I deal with it.

I know there is a lot of location depending on your ROM or device

like /data/wifi/bcm_supp.conf or /data/misc/wifi/wpa_supplicant.conf

but I want to get it dynamically .

Answer 1

You need to create a WifiConfiguration instance like this:

String networkSSID = "test";
String networkPass = "pass";

WifiConfiguration conf = new WifiConfiguration();
conf.SSID = "\"" + networkSSID + "\"";   //

Then, for WEP network you need to do this:

conf.wepKeys[0] = "\"" + networkPass + "\""; 
conf.wepTxKeyIndex = 0;
conf.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
conf.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP40); 

For WPA network you need to add passphrase like this:

conf.preSharedKey = "\""+ networkPass +"\"";

For Open network you need to do this:

 conf.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);

Then, you need to add it to Android Wi-Fi manager settings:

WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE); 
wifiManager.add(conf);

And finally, you might need to enable it, so Android connects to it:

List<WifiConfiguration> list = wifiManager.getConfiguredNetworks();
for (WifiConfiguration i : list) {
    if (i.SSID != null && i.SSID.equals("\"" + networkSSID + "\"")) {
        wm.disconnect();
        wm.enableNetwork(i.networkId, true);
        wm.reconnect();
        break;
    }
}

In case of WEP, if your password is in hex, you do not need to surround it with quotation marks.