"Character device drivers can perform a variety of operations, including some that involve sensitive device configurations via IOCTL commands. What security measures do you consider necessary when developing these drivers to prevent unauthorized access and ensure system stability?"
Unauthorized access to hardware is controlled by IOCTL commands for setting operational paramaters and managing network configurations as set by the user or environment.
Setting baud rates, resetting and other network transmission parameters are implemented using IOCTL functions.
