secure GALAXY TAB - how to disable Bluetooth and/o

问题:

Please be kind enough to support me with help me securing Galaxy tabs we give out for employees. Is there a way to disable the permission to stop accessing Bluetooth and WiFi...

"The easiest way to disable bluetooth is to just remove the permission in the bluetooth device. Bluetooth is managed by the kernel through the devices /dev/ttyHS0 and /dev/ttyMSM0 and these devices have set read and write permissions (660) for the user and group bluetooth. If those permissions are removed, the device will not be reachable. This must be done when booting the system since the /dev directory is reset during reboot."

how can i achieve this?

回答1:

Yes this is possible to do on boot - what you will need to do is extract the boot.img from the device.

You can then unpack the boot.img which gives you a ramdisk & a kernel image. In the Ramdisk is a set of init files, init.rc is where you are going to want to either place your code to set up the persmission to this device or reference a script.

Does this help?