#!/bin/sh
#
# vtun		Script for starting and stoping vtund.
#
# chkconfig:	345 55 45
# description:	vtund Virtual Tunnel Daemon. \
#		VTun provides the method for creating Virtual Tunnels over \
#		TCP/IP networks and allows to shape, compress, encrypt \
#		traffic in that tunnels.

# Source function library.
. /etc/rc.d/init.d/functions

# Get network config
. /etc/sysconfig/network

# Check that networking is up.
if is_yes "${NETWORKING}"; then
	if [ ! -f /var/lock/subsys/network -a "$1" != stop -a "$1" != status ]; then
		msg_network_down Vtund
		exit 1
	fi
else
	exit 0
fi

# Get service config
[ -f /etc/sysconfig/vtun ] && . /etc/sysconfig/vtun

err_exit() {
	echo $@
	exit 1
}

[ -n "$VTUND_MODE" ] || err_exit "VTUND_MODE not set"

VTUND_OPTS="$VTUND_OPTS -f $VTUND_CONF"

if [ $VTUND_MODE = "server" ]; then
	VTUND_OPTS="$VTUND_OPTS -s"

elif [ $VTUND_MODE = "client" ]; then
	[ -n "$VTUND_SESSION" ] || err_exit "VTUND_SESSION not set"
	[ -n "$VTUND_SERVER_ADDR" ] || err_exit "VTUND_SERVER_ADDR not set"
	[ -n "$VTUND_PORT" ] && VTUND_OPTS="$VTUND_OPTS -P $VTUND_PORT"
	VTUND_OPTS="$VTUND_OPTS $VTUND_SESSION $VTUND_SERVER_ADDR"

else
	err_exit "Invalid VTUND_MODE ($VTUND_MODE), should be set to \"server\" or \"client\""
fi

RETVAL=0
# See how we were called.
case "$1" in
  start)
	# Check if the service is already running?
	if [ ! -f /var/lock/subsys/vtund ]; then
		msg_starting Vtund
		daemon vtund $VTUND_OPTS
		RETVAL=$?
		[ $RETVAL -eq 0 ] && touch /var/lock/subsys/vtund
	else
		msg_already_running Vtund
	fi
	;;
  stop)
	if [ -f /var/lock/subsys/vtund ]; then
		# Stop daemons.
		msg_stopping Vtund
		killproc vtund
		rm -f /var/lock/subsys/vtund >/dev/null 2>&1
	else
		msg_not_running Vtund
	fi
	;;
  restart|force-reload)
	$0 stop
	$0 start
	exit $?
	;;
  status)
	status vtund
	exit $?
	;;
  *)
	msg_usage "$0 {start|stop|restart|force-reload|status}"
	exit 3
esac

exit $RETVAL