#!/bin/bash

#

# blktapctrl	Script to start the Xen blktapctrl daemon

#

# Author:       Daniel Berrange <berrange@redhat.com>

#

# chkconfig: 2345 97 01

# description: Starts and stops the Xen blktapctrl daemon.

### BEGIN INIT INFO

# Provides:          blktapctrl

# Required-Start:    $syslog $remote_fs

# Should-Start:

# Required-Stop:     $syslog $remote_fs

# Should-Stop:

# Default-Start:     3 4 5

# Default-Stop:      0 1 2 6

# Default-Enabled:   yes

# Short-Description: Start/stop blktapctrl

# Description:       Starts and stops the Xen blktapctrl daemon

### END INIT INFO

# Source function library.

. /etc/rc.d/init.d/functions

if [ ! -d /proc/xen ]; then

	exit 0

fi

if ! grep -q "control_d" /proc/xen/capabilities ; then

	exit 0

fi

# Default config params

BLKTAPCTRL_ARGS=

# User customized params

test -f /etc/sysconfig/blktapctrl && . /etc/sysconfig/blktapctrl

start() {

	echo -n $"Starting xen blktapctrl daemon: "

        /usr/sbin/blktapctrl $BLKTAPCTRL_ARGS

	RETVAL=$?

	test $RETVAL = 0 && echo_success || echo_failure

        echo

        [ $RETVAL -eq 0 ] && touch /var/lock/subsys/blktapctrl

}

stop() {

	echo -n $"Stoping xen blktapctrl daemon: "

	# blktapctrl is not restartable.  So we refuse to stop it

	# unless the machine is being shutdown or rebooted anyway.

	if test "$runlevel" = "0" -o "$runlevel" = "6"; then

		killproc xenstored > /dev/null

		RETVAL=$?

	else

		RETVAL=1

	fi

	test $RETVAL = 0 && echo_success || echo_failure

        echo

        [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/blktapctrl

}

rcstatus() {

        status blktapctrl

        RETVAL=$?

	test $RETVAL = 0 && echo_success || echo_failure

	echo

}

RETVAL=0

case "$1" in

  start)

        start

	;;

  stop)

        stop

	;;

  status)

        rcstatus

	;;

  *)

	echo $"Usage: $0 {start|stop|status}"

	exit 1

esac

exit $RETVAL