#! /bin/sh
#
# skeleton	example file to build /etc/init.d/ scripts.
#		This file should be used to construct scripts for /etc/init.d.
#
#		Written by Miquel van Smoorenburg <miquels@cistron.nl>.
#		Modified for Debian GNU/Linux
#		by Ian Murdock <imurdock@gnu.ai.mit.edu>.
#
# Version:	@(#)skeleton  1.9.1  08-Apr-2002  miquels@cistron.nl
#

PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/bin/ggsn
NAME=openggsn
DESC="OpenGGSN ggsn daemon"

test -x $DAEMON || exit 0
### Please write /etc/ggsn.conf before running this daemon.
if [ ! -f /etc/ggsn.conf ]; then
  echo "Please write /etc/ggsn.conf before running this daemon."
  exit 0
fi
#test -f /etc/ggsn.conf || exit 0

set -e

case "$1" in
  start)
	echo -n "Starting $DESC: $NAME"
	/sbin/modprobe tun >/dev/null 2>&1

	if [ ! -d  /var/lib/ggsn ]; then
	  mkdir /var/lib/ggsn
	fi

	if [ ! -d  /var/lib/ggsn/gsn_restart ]; then
	  echo 0 > /var/lib/ggsn/gsn_restart
	fi

	echo 1 > /proc/sys/net/ipv4/ip_forward
	start-stop-daemon --start --quiet --pidfile /var/run/ggsn.pid \
		--exec $DAEMON
	echo "."
	;;
  stop)
	echo -n "Stopping $DESC: $NAME "
	start-stop-daemon --stop --quiet --pidfile /var/run/ggsn.pid \
		--exec $DAEMON
	echo 0 > /proc/sys/net/ipv4/ip_forward
	echo "."
	;;
  #reload)
	#
	#	If the daemon can reload its config files on the fly
	#	for example by sending it SIGHUP, do it here.
	#
	#	If the daemon responds to changes in its config file
	#	directly anyway, make this a do-nothing entry.
	#
	# echo -n "Reloading $DESC configuration..."
	# start-stop-daemon --stop --signal 1 --quiet --pidfile \
	#	/var/run/$NAME.pid --exec $DAEMON
	# echo "done."
  #;;
  restart|force-reload)
	#
	#	If the "reload" option is implemented, move the "force-reload"
	#	option to the "reload" entry above. If not, "force-reload" is
	#	just the same as "restart".
	#
	echo -n "Restarting $DESC: $NAME"
	start-stop-daemon --stop --quiet --pidfile \
		/var/run/ggsn.pid --exec $DAEMON
	sleep 1
	start-stop-daemon --start --quiet --pidfile \
		/var/run/ggsn.pid --exec $DAEMON
	echo "."
	;;
  *)
	N=/etc/init.d/openggsn
	# echo "Usage: $N {start|stop|restart|reload|force-reload}" >&2
	echo "Usage: $N {start|stop|restart|force-reload}" >&2
	exit 1
	;;
esac

exit 0
