#!/bin/sh
#
# Copyright(c) 2010-2011 Intel Corporation. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms and conditions of the GNU General Public License,
# version 2, as published by the Free Software Foundation.
#
# This program is distributed in the hope it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
#
# chkconfig: - 21 80
#
# Maintained at www.Open-FCoE.org

### BEGIN INIT INFO
# Provides: fcoe
# Required-Start: network
# Required-Stop:
# Default-Start:
# Default-Stop:
# Short-Description: Open-FCoE Initiator
# Description: Open-FCoE Initiator
### END INIT INFO

CONFIG_DIR=/etc/fcoe
LOG_FILE="/var/log/fcoemon.log"
LOCKFILE="/var/lock/subsys/fcoe"
FCOEMON=/usr/sbin/fcoemon
FCOEADM=/usr/sbin/fcoeadm
FCOEMON_OPTS=

. /etc/init.d/functions
. $CONFIG_DIR/config

if [ "$USE_SYSLOG" = "yes" ] || [ "$USE_SYSLOG" = "YES" ]; then
    FCOEMON_OPTS+=" --syslog"
fi

if [ "$DEBUG" = "yes" ] || [ "$DEBUG" = "YES" ]; then
    FCOEMON_OPTS+=" --debug"
fi

test -x $FCOEADM || {
	echo "$FCOEADM not installed";
	if [ "$1" = "stop" ]; then exit 0;
	else
	    failure
	fi
}

test -x $FCOEMON || {
	echo "$FCOEMON not installed";
	if [ "$1" = "stop" ]; then exit 0;
	else
	    failure
	fi
}

start()
{
	echo -n $"Starting FCoE initiator service: "

	pid=$($FCOEADM -p 2> /dev/null)
	if [ -z "$pid" ]; then
		modprobe -q libfc
		modprobe -q sg
		modprobe -q -a $SUPPORTED_DRIVERS

		daemon ${FCOEMON} ${FCOEMON_OPTS}
		echo
		touch ${LOCKFILE}
		echo
	else
		echo "(already running)"
	fi
}

stop()
{
	local force=$1

	pid=$($FCOEADM -p 2> /dev/null)
	if [ "$force" == "force" ]
	then
		action "Destroying any active fcoe interface/s"
		[ "$pid" ] && kill -HUP $pid
		modprobe -r $SUPPORTED_DRIVERS libfc
	else
		[ "$pid" ] && kill -TERM $pid
	fi

	action $"Stopping FCoE initiator service: "

	rm -f ${LOCKFILE}
}

status()
{
	[ -f ${LOCKFILE} ] || { echo "$FCOEMON is stopped" ; return 3; }

	status=0
	pid=$($FCOEADM -p 2> /dev/null)
	echo "$FCOEMON is running, pid=$pid"

	interfaces=`$FCOEADM -i 2>&1 | \
		    awk '/Symbolic Name:/{print $6}' | \
		    sort | awk '{printf("%s ", $1)}'`

	if [ -z "$interfaces" ]; then
		echo "No interfaces created."
		status=2
	else
		echo "Created interfaces: $interfaces"
	fi

	return $status
}

case "$1" in
	start)
		start
		;;

	stop)
		stop $2
		;;

	restart)
		stop $2
		start
		;;

	force-reload)
		stop force
		start
		;;

	status)
		status
		exit $?
		;;
	condrestart|try-restart)
		status || exit 0
		$0 restart
		;;
	*)
		echo -n "Usage: $0 {start|stop [force]|status|restart [force]|"
		echo "force-reload|condrestart|try-restart}"
		exit 1
		;;
esac