#!/bin/sh
#
# nfslock	This shell script takes care of starting and stopping
#		the NSM status monitor - rpc.statd
#
# chkconfig:	345 14 82
# description:	The rpc.statd server implements the NSM \
#		(Network  Status  Monitor) RPC protocol. \
#		It is used by the NFS file locking service, lockd \
#		to implement lock recovery when the NFS server \
#		machine crashes and reboots.
# probe:	true

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

# Get network config
. /etc/sysconfig/network

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

# 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 "RPC statd"
		exit 1
	fi
else
	exit 0
fi

if [ "$1" != "stop" ]; then
	check_portmapper || { nls "Error: portmap isn't running" && exit 0; }
fi

start() {
	# Check if the service is already running?
	if [ -f /var/lock/subsys/nfslock ]; then
		msg_already_running "RPC statd"
		return
	fi

	# Set the ports lockd should listen on
	if [ -n "$LOCKD_TCPPORT" ]; then
		/sbin/sysctl -w fs.nfs.nlm_tcpport=$LOCKD_TCPPORT >/dev/null 2>&1
	fi
	if [ -n "$LOCKD_UDPPORT" ]; then
		/sbin/sysctl -w fs.nfs.nlm_udpport=$LOCKD_UDPPORT >/dev/null 2>&1
	fi

	# Start daemons.
	# Don't put sm-notify here, statd will run it when started
	msg_starting "RPC statd"
	daemon /sbin/rpc.statd $STATDOPTIONS
	RETVAL=$?
	[ $RETVAL -eq 0 ] && touch /var/lock/subsys/nfslock
}

stop() {
	if [ ! -f /var/lock/subsys/nfslock ]; then
		msg_not_running "RPC statd"
		return
	fi

	# Reset the lockd ports if they were set
	if [ -n "$LOCKD_TCPPORT" ]; then
		/sbin/sysctl -w fs.nfs.nlm_tcpport=0 >/dev/null 2>&1
	fi
	if [ -n "$LOCKD_UDPPORT" ]; then
		/sbin/sysctl -w fs.nfs.nlm_udpport=0 >/dev/null 2>&1
	fi
	# Stop daemons.
	msg_stopping "RPC statd"
	killproc rpc.statd
	rm -f /var/lock/subsys/nfslock
}

RETVAL=0
# See how we were called.
case "$1" in
  start)
  	start
	;;
  stop)
  	stop
	;;
  restart|force-reload)
	stop
	start
	;;
  probe)
	if [ ! -f /var/lock/subsys/nfslock ]; then
		echo start
		exit 0
	fi
	/sbin/pidof rpc.statd >/dev/null 2>&1; STATD="$?"
	if [ $STATD = 1 ]; then
		echo restart
		exit 0
	fi
	;;
  status)
	status rpc.statd
	exit $?
	;;
  *)
	msg_usage "$0 {start|stop|restart|force-reload|probe|status}"
	exit 3
esac

exit $RETVAL