#! /bin/sh
#
# VirtualBox guest modules init script for Slackware.

# Check architecture
cpu=`uname -m`;
case "$cpu" in
  i[3456789]86|x86)
    cpu="x86"
    lib_path="/usr/lib"
    ;;
  x86_64|amd64)
    cpu="amd64"
    if test -d "/usr/lib64"; then
      lib_path="/usr/lib64"
    else
      lib_path="/usr/lib"
    fi
    ;;
esac

dev=/dev/vboxguest
userdev=/dev/vboxuser
owner=vboxguest
group=vboxguest


vboxaddrunning() {
    lsmod | grep -q "vboxguest[^_-]"
}

running_vboxguest()
{
    lsmod | grep -q "vboxguest[^_-]"
}

running_vboxadd()
{
    lsmod | grep -q "vboxadd[^_-]"
}

running_vboxsf()
{
    lsmod | grep -q "vboxsf[^_-]"
}

start()
{
    # Modules loading
    echo -n "Starting the VirtualBox Guest Modules ";
    running_vboxguest || {
        rm -f $dev || {
            echo "Cannot remove $dev"
        }

        rm -f $userdev || {
            echo "Cannot remove $userdev"
        }

        /sbin/modprobe vboxguest >/dev/null 2>&1 || {
            echo "modprobe vboxguest failed"
        }
        sleep .5
    }
    if [ ! -c $dev ]; then
        maj=`sed -n 's;\([0-9]\+\) vboxguest;\1;p' /proc/devices`
        if [ ! -z "$maj" ]; then
            min=0
        else
            min=`sed -n 's;\([0-9]\+\) vboxguest;\1;p' /proc/misc`
            if [ ! -z "$min" ]; then
                maj=10
            fi
        fi
        test -z "$maj" && {
            rmmod vboxguest 2>/dev/null
            echo "Cannot locate the VirtualBox device"
        }

        mknod -m 0664 $dev c $maj $min || {
            rmmod vboxguest 2>/dev/null
            echo "Cannot create device $dev with major $maj and minor $min"
        }
    fi
    chown $owner:$group $dev 2>/dev/null || {
        rm -f $dev 2>/dev/null
        rm -f $userdev 2>/dev/null
        rmmod vboxguest 2>/dev/null
        echo "Cannot change owner $owner:$group for device $dev"
    }

    if [ ! -c $userdev ]; then
        maj=10
        min=`sed -n 's;\([0-9]\+\) vboxuser;\1;p' /proc/misc`
        if [ ! -z "$min" ]; then
            mknod -m 0666 $userdev c $maj $min || {
                rm -f $dev 2>/dev/null
                rmmod vboxguest 2>/dev/null
                echo "Cannot create device $userdev with major $maj and minor $min"
            }
            chown $owner:$group $userdev 2>/dev/null || {
                rm -f $dev 2>/dev/null
                rm -f $userdev 2>/dev/null
                rmmod vboxguest 2>/dev/null
                echo "Cannot change owner $owner:$group for device $userdev"
            }
        fi
    fi

    running_vboxsf || {
	/sbin/modprobe vboxsf > /dev/null 2>&1 || {
            if dmesg | grep "vboxConnect failed" > /dev/null 2>&1; then
            	echo "Unable to start shared folders support.  Make sure that your VirtualBox build"
            	echo "supports this feature."
            	exit 1
            fi
            echo "modprobe vboxsf failed"
        }
    }

    # Mount all shared folders from /etc/fstab. Normally this is done by some
    # other startup script but this requires the vboxdrv kernel module loaded.
    # This isn't necessary anymore as the vboxsf module is autoloaded.
    # mount -a -t vboxsf

    echo " done"
    # End of modules loading
    return $RETVAL
}

stop()
{
    RETVAL=0
    echo -n "Stopping VirtualBox Guest Modules ";
    if grep -q "vboxsf" /proc/mounts ; then
        if ! umount -a -t vboxsf 2>/dev/null; then
            echo "Cannot unmount vboxsf folders"
        fi
    fi
    if running_vboxsf; then
        rmmod vboxsf 2>/dev/null || echo "Cannot unload module vboxsf"
	sleep 0.5
    fi
    if running_vboxguest; then
        rmmod vboxguest 2>/dev/null || echo "Cannot unload module vboxguest"
        rm -f $userdev || echo "Cannot unlink $userdev"
        rm -f $dev || echo "Cannot unlink $dev"
    fi
    echo " done"
    return $RETVAL
}

restart()
{
    stop
    start
    return 0
}


dmnstatus()
{
    if running_vboxguest; then
        echo "The VirtualBox Additions are currently loaded."
    else
        echo "The VirtualBox Additions are not currently loaded."
    fi
}


case "$1" in
start)
    start
    ;;
stop)
    stop
    ;;
restart)
    restart
    ;;
status)
    dmnstatus
    ;;
*)
    echo "Usage: $0 {start|stop|restart|status}"
    exit 1
esac

exit