1 files changed, 42 insertions, 0 deletions
diff --git a/kcontrol/input/consoleUserPerms b/kcontrol/input/consoleUserPerms
new file mode 100755
index 000000000..015df642f
--- /dev/null
+++ b/kcontrol/input/consoleUserPerms
@@ -0,0 +1,42 @@
+#!/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 <[email protected]>
+    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