#!/bin/bash
#
# rpcgssd       Start up and shut down RPCSEC GSS daemon
#
# Authors:	Chuck Lever <cel@netapp.com>
#
# chkconfig: 345 19 69
# description: Starts user-level daemon that manages RPCSEC GSS contexts \
#	       for the NFSv4 client.

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

# Source networking configuration.
if [ ! -f /etc/sysconfig/network ]; then
    exit 0
fi
. /etc/sysconfig/network

# Check that networking is up.
[ "${NETWORKING}" = "no" ] && exit 0

[ ! -x /usr/sbin/rpc.gssd ] && exit 0

# Check for and source configuration file otherwise set defaults
[ -f /etc/sysconfig/nfs ] && . /etc/sysconfig/nfs
[ "${SECURE_NFS}" != "yes" ] && exit 0

# List of kernel modules to load
[ -z "${SECURE_NFS_MODS}" ] && SECURE_NFS_MODS="des rpcsec_gss_krb5"


# Try to use machine credentials by default
OPTIONS=""
RETVAL=0
prog="rpc.gssd"

case "$1" in
  start|condstart)
	# Make sure the daemon is not already running.
	if status $prog > /dev/null ; then
		exit 0
	fi
	rm -f /var/lock/subsys/$prog

	echo -n $"Starting RPC gssd: "

	# Load sunrpc which mounts the rpc_pipes fs.
	[ -x /sbin/lsmod -a -x /sbin/modprobe ] && {
		if ! /sbin/lsmod | grep sunrpc > /dev/null ; then
			 /sbin/modprobe sunrpc || exit 1
		fi
		# Load rpcsec modules
		for i in ${SECURE_NFS_MODS}
		do 
			if ! /sbin/lsmod | grep $i > /dev/null ;  then
				 /sbin/modprobe $i || exit 1
			fi
		done
	}
	# Make sure the mount worked.
	[ -z "${RPCMTAB}" ] && RPCMTAB=`grep -v '^#' /proc/mounts | \
		awk '{ if ($3 ~ /^rpc_pipefs$/ ) print $2}'`
	[ -z "${RPCMTAB}" ] && {
		echo "Error: RPC MTAB does not exist."
		exit 1
	}	

	# Start daemon.
	daemon $prog ${OPTIONS}
	RETVAL=$?
	echo
	[ $RETVAL -eq 0 ] && touch /var/lock/subsys/rpc.gssd
	;;
  stop)
	# Stop daemon.
	echo -n $"Shutting down RPC gssd: "
	killproc $prog
	RETVAL=$?
	echo
	[ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/rpc.gssd
	;;
  status)
	status rpc.gssd
	RETVAL=$?
	;;
  restart|reload)
	$0 stop
	$0 start
	RETVAL=$?
	;;
  condrestart)
	if [ -f /var/lock/subsys/rpc.gssd ]; then
		$0 restart
		RETVAL=$?
	fi
	;;
  *)
	echo $"Usage: $0 {start|stop|restart|condstart|condrestart|status}"
	exit 1
esac

exit $RETVAL