#!/bin/bash

#

# gfs2 mount/unmount helper

#

# chkconfig: - 26 74

# description: mount/unmount gfs2 filesystems configured in /etc/fstab

### BEGIN INIT INFO

# Provides:		gfs2

# Required-Start:	$network cman gfs_controld

# Required-Stop:	$network cman gfs_controld

# Default-Start:

# Default-Stop:

# Short-Description:	mount/unmount gfs2 filesystems configured in /etc/fstab

# Description:		mount/unmount gfs2 filesystems configured in /etc/fstab

### END INIT INFO

# set secure PATH

PATH="/bin:/sbin:/usr/sbin:/usr/bin"

### generic wrapper functions

success()

{

	echo -ne "[  OK  ]\r"

}

failure()

{

	echo -ne "[FAILED]\r"

}

ok() {

	success

	echo

}

nok() {

	echo -e "$errmsg"

	failure

	echo

	exit 1

}

# rpm based distros

if [ -d /etc/sysconfig ]; then

	[ -f /etc/init.d/functions ] && . /etc/init.d/functions

	[ -f /etc/sysconfig/cluster ] && . /etc/sysconfig/cluster

	[ -f /etc/sysconfig/gfs2 ] && . /etc/sysconfig/gfs2

	[ -z "$LOCK_FILE" ] && LOCK_FILE="/var/lock/subsys/gfs2"

fi

# deb based distros

if [ -d /etc/default ]; then

	[ -f /etc/default/cluster ] && . /etc/default/cluster

	[ -f /etc/default/gfs2 ] && . /etc/default/gfs2

	[ -z "$LOCK_FILE" ] && LOCK_FILE="/var/lock/gfs2"

fi

# proc is required for both status and stop.

# start could live without, but better be consistent with the behavior

if [ ! -f /proc/mounts ]; then

	echo "GFS2: /proc is not available, unable to proceed"

	exit 1

fi

#

# This script's behavior is modeled closely after the netfs script.  

#

GFS2FSTAB=$(LC_ALL=C awk '!/^#/ && $3 == "gfs2" && $4 !~ /noauto/ { print $2 }' /etc/fstab)

GFS2MTAB=$(LC_ALL=C awk '!/^#/ && $3 == "gfs2" && $2 != "/" { print $2 }' /proc/mounts | sort -r)

if [ -z "$GFS2FSTAB" ]; then

	echo "GFS2: no entries found in /etc/fstab"

	exit 6

fi

# See how we were called.

case "$1" in

start)

	[ -z "$GFS2FSTAB" ] && exit 0

	echo -n "Mounting GFS2 filesystems: "

	errmsg="$(mount -a -t gfs2 2>&1)" || nok

	touch $LOCK_FILE

	ok

;;

stop)

	[ -z "$GFS2MTAB" ] && exit 0

	echo -n "Unmounting GFS2 filesystems: "

	errmsg="$(umount -a -t gfs2 2>&1)" || nok

	modprobe -r gfs2 > /dev/null 2>&1 || true

	rm -f $LOCK_FILE

	ok

	;;

status)

	if [ -z "$GFS2MTAB" ] && [ -f $LOCK_FILE ]; then

		echo "GFS2: Found stale lock file $LOCK_FILE"

		exit 2

	fi

	if [ -n "$GFS2FSTAB" ] && [ -z "$GFS2MTAB" ]; then

		echo "GFS2: service is not running"

		exit 3

	fi

	echo "Configured GFS2 mountpoints: "

	for fs in $GFS2FSTAB; do

		echo $fs;

	done

	echo "Active GFS2 mountpoints: "

	for fs in $GFS2MTAB; do

		echo $fs;

	done

;;

condrestart|try-restart)

	$0 status >/dev/null 2>&1 || exit 0

	$0 restart

;;

restart|reload|force-reload)

	$0 stop

	$0 start

;;

*)

	echo "Usage: $0 {start|stop|restart|reload|force-reload|condrestart|try-restart|status}"

	exit 2

;;

esac

exit 0