File indexing completed on 2025-01-26 05:06:35

 #!/bin/bash
 #
 # /etc/hotplug/usb/consoleUserPerms
 #
 # Sets up newly plugged in USB device so that the user who owns
 # the console according to pam_console can access it from user space
 #
 # Note that for this script to work, you'll need all of the following:
 # a) a line in the file /etc/hotplug/usb.usermap or another usermap file
 #    in /etc/hotplug/usb/ that corresponds to the device you are using.
 # b) a setup using pam_console creates the respective lock files
 #    containing the name of the respective user. You can check for that
 #    by executing "echo `cat /var/{run,lock}/console.lock`" and
 #    verifying the appropriate user is mentioned somewhere there.
 # c) a Linux kernel supporting hotplug and usbdevfs
 # d) the hotplug package (http://linux-hotplug.sourceforge.net/)
 #
 # In the usermap file, the first field "usb module" should be named
 # "consoleUserPerms" to invoke this script.
 #
 
 if [ "${ACTION}" = "add" ] && [ -f "${DEVICE}" ]
 then
     # New code, using lock files instead of copying /dev/console permissions
     # This also works with non-kdm logins (e.g. on a virtual terminal)
     # Idea and code from Nalin Dahyabhai <nalin@redhat.com>
     if [ -f /var/run/console.lock ]
     then
         CONSOLEOWNER=`cat /var/run/console.lock`
     elif [ -f /var/lock/console.lock ]
     then
         CONSOLEOWNER=`cat /var/lock/console.lock`
     else
         CONSOLEOWNER=
     fi
     if [ -n "$CONSOLEOWNER" ]
     then
         chmod 0000 "${DEVICE}"
         chown "$CONSOLEOWNER" "${DEVICE}"
         chmod 0600 "${DEVICE}"
     fi
 fi