Handle luks encrypted USB drives

src/freedombone

@@ -1574,7 +1574,10 @@ function create_backup_script {
   echo '' >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo "umount -f $USB_MOUNT" >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo "mkdir $USB_MOUNT" >> /usr/bin/$BACKUP_SCRIPT_NAME
-  echo "cryptsetup luksOpen $USB_DRIVE $USB_MOUNT" >> /usr/bin/$BACKUP_SCRIPT_NAME
+  echo "cryptsetup luksOpen $USB_DRIVE encrypted_usb" >> /usr/bin/$BACKUP_SCRIPT_NAME
+  echo 'if [ "$?" = "0" ]; then' >> /usr/bin/$BACKUP_SCRIPT_NAME
+  echo '    USB_DRIVE=/dev/mapper/encrypted_usb' >> /usr/bin/$BACKUP_SCRIPT_NAME
+  echo 'fi' >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo -n 'mount $USB_DRIVE ' >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo "$USB_MOUNT" >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo 'if [ ! "$?" = "0" ]; then' >> /usr/bin/$BACKUP_SCRIPT_NAME
@@ -2182,7 +2185,10 @@ function create_restore_script {
   echo '' >> /usr/bin/$RESTORE_SCRIPT_NAME
   echo "if [ ! -d $USB_MOUNT ]; then" >> /usr/bin/$RESTORE_SCRIPT_NAME
   echo "  mkdir $USB_MOUNT" >> /usr/bin/$RESTORE_SCRIPT_NAME
-  echo "  cryptsetup luksOpen $USB_DRIVE $USB_MOUNT" >> /usr/bin/$RESTORE_SCRIPT_NAME
+  echo "  cryptsetup luksOpen $USB_DRIVE encrypted_usb" >> /usr/bin/$BACKUP_SCRIPT_NAME
+  echo '  if [ "$?" = "0" ]; then' >> /usr/bin/$BACKUP_SCRIPT_NAME
+  echo '      USB_DRIVE=/dev/mapper/encrypted_usb' >> /usr/bin/$BACKUP_SCRIPT_NAME
+  echo '  fi' >> /usr/bin/$BACKUP_SCRIPT_NAME
   echo -n '  mount $USB_DRIVE ' >> /usr/bin/$RESTORE_SCRIPT_NAME
   echo "$USB_MOUNT" >> /usr/bin/$RESTORE_SCRIPT_NAME
   echo 'fi' >> /usr/bin/$RESTORE_SCRIPT_NAME