#!/bin/sh
#############################################################################
#
# ipmi:		OpenIPMI Driver init script
#
# Authors:	Matt Domsch <Matt_Domsch@dell.com>
#               Chris Poblete <Chris_Poblete@dell.com>
#
# chkconfig: 2345 04 96
# description: OpenIPMI Driver init script
#
### BEGIN INIT INFO
# Provides: ipmidrv
# Required-Start: $localfs $remotefs $syslog
# Required-Stop: $localfs $remotefs $syslog
# Default-Start:
# Default-Stop:
# Short-Description: OpenIPMI Driver init script
# Description: OpenIPMI Driver init script
### END INIT INFO
#
#############################################################################
# for log_success_msg and friends
[ -r /lib/lsb/init-functions ] && . /lib/lsb/init-functions
# source config info
[ -r /etc/sysconfig/ipmi ] && . /etc/sysconfig/ipmi

#############################################################################
# GLOBALS
#############################################################################
MODULE_NAME="ipmi"
INTF_NUM=0

IPMI_SMB_MODULE_NAME="ipmi_smb"
IPMI_SI_MODULE_NAME="ipmi_si"
kernel=`uname -r | cut -d. -f1-2`
if [ "${kernel}" == "2.4" ]; then
    IPMI_SMB_MODULE_NAME="ipmi_smb_intf"
    IPMI_SI_MODULE_NAME="ipmi_si_drv"
fi

MODULES_INTERFACES="ipmi_imb ipmi_devintf"
MODULES_FEATURES="ipmi_watchdog ipmi_poweroff"
MODULES_HW="${IPMI_SMB_MODULE_NAME} ${IPMI_SI_MODULE_NAME}"
MODULES_BASE="ipmi_msghandler"
MODULES="${MODULES_INTERFACES} ${MODULES_FEATURES} ${MODULES_HW} ${MODULES_BASE}"


RETVAL=0
LOCKFILE=/var/lock/subsys/ipmi


#############################################################################
load_si()
{
    if [ "${IPMI_SI}" = "1" ]; then
	modprobe ${IPMI_SI_MODULE_NAME} || RETVAL=1
    fi
}

load_smb()
{
    if [ "${IPMI_SMB}" = "1" ]; then
	modprobe ${IPMI_SMB_MODULE_NAME} || RETVAL=1
    fi
}

load_hw_modules()
{
    load_si
    load_smb
}

start_watchdog()
{
    if [ "${IPMI_WATCHDOG}" = "1" ]; then
	load_hw_modules
	modprobe ipmi_watchdog ${IPMI_WATCHDOG_OPTIONS} || RETVAL=2
	if [ ! -x /sbin/udev -a ! -e /dev/watchdog ]; then
	    mknod -m 0600 /dev/watchdog 10 130 || RETVAL=2
	fi
    fi
}

stop_watchdog()
{
    modprobe -q -r ipmi_watchdog
    [ ! -x /sbin/udev ] && rm /dev/watchdog
}

start_powercontrol()
{
    local poweroff_opts=""
    if [ "${IPMI_POWEROFF}" = "1" ]; then
	load_hw_modules
	[ "${IPMI_POWERCYCLE}" == "1" ] && poweroff_opts="poweroff_control=2"
	modprobe ipmi_poweroff "${poweroff_opts}" || RETVAL=2
    fi
}

stop_powercontrol()
{
    modprobe -q -r ipmi_poweroff
}

#############################################################################
unload_all_ipmi_modules()
{
    [ ! -x /sbin/udev ] && rm -f "/dev/ipmi${INTF_NUM}"
    stop_watchdog
    for m in ${MODULES}; do
	    modprobe -q -r ${m}
    done
}

unload_ipmi_modules_leave_features()
{
    [ ! -x /sbin/udev ] && rm -f "/dev/ipmi${INTF_NUM}"
    for m in ${MODULES_INTERFACES}; do
	    modprobe -q -r ${m}
    done
    lsmod | egrep -q "ipmi_poweroff|ipmi_watchdog"
    if [ "$?" -ne "0" ]; then
	stop_watchdog
	for m in ${MODULES}; do
	    modprobe -q -r ${m}
	done
    fi
}


#############################################################################
load_ipmi_modules ()
{
	modprobe ipmi_msghandler || RETVAL=1
	load_hw_modules
	[ "${RETVAL}" = "1" ] && unload_all_ipmi_modules && return

	start_watchdog
	start_powercontrol

	if [ "${DEV_IPMI}" = "1" ]; then
	    modprobe ipmi_devintf || RETVAL=2
	    if [ "${RETVAL}" != "2" ]; then
		if [ ! -x /sbin/udev ]; then
		    DEVMAJOR=`cat /proc/devices | awk '/ipmidev/{print $1}'`
		    mknod -m 0600 /dev/ipmi${INTF_NUM} c ${DEVMAJOR} 0 || RETVAL=2
		fi
	    fi
	fi

	if [ "${IPMI_IMB}" = "1" ]; then
	    modprobe ipmi_imb || RETVAL=2
	    if [ "${RETVAL}" != "2" ]; then
		DEVMAJOR=`cat /proc/devices | awk '/imb/{print $1}'`
		mknod -m 0600 /dev/imb c ${DEVMAJOR} 0 || RETVAL=2
	    fi
	fi

	# Per Corey Minyard, essentially no one uses ipmi_radisys
	# and we don't want to encourage its further use
	# so it won't be handled here.
	return
}

#############################################################################
start()
{
    echo -n $"Starting ${MODULE_NAME} drivers: "
    load_ipmi_modules
    [ "${RETVAL}" = "1" ] && log_failure_msg && return
    [ "${RETVAL}" = "2" ] && touch ${LOCKFILE} && log_warning_msg
    [ "${RETVAL}" = "0" ] && touch ${LOCKFILE} && log_success_msg
}

#############################################################################
stop()
{
    echo -n $"Stopping ${MODULE_NAME} drivers: "
    unload_ipmi_modules_leave_features
    rm -f ${LOCKFILE}
    log_success_msg
}

stop_all()
{
    echo -n $"Stopping ${MODULE_NAME} drivers: "
    unload_all_ipmi_modules
    rm -f ${LOCKFILE}
    log_success_msg
}

#############################################################################
restart()
{
    stop_all
    start
}

#############################################################################
status ()
{
    for m in ${MODULES}; do
        if /sbin/lsmod | grep $m >/dev/null 2>&1 ; then
            echo "$m module loaded"
        else
            echo "$m module not loaded"
        fi
    done
}

usage ()
{
		echo $"Usage: $0 {start|stop|status|restart|condrestart|" 1>&2
		echo $"          start-watchdog|stop-watchdog|" 1>&2
		echo $"          start-powercontrol|stop-powercontrol|" 1>&2
		echo $"          stop-all}" 1>&2
		RETVAL=1
}

condrestart ()
{
    [ -e ${LOCKFILE} ] && restart
}

#############################################################################
# MAIN
#############################################################################
case "$1" in
	start) start ;;
	stop)  stop ;;
	restart) restart ;;
	status)	status ;;
	condrestart) condrestart ;;
	start-watchdog) start_watchdog ;;
	stop-watchdog) stop_watchdog ;;
	start-powercontrol) start_powercontrol ;;
	stop-powercontrol) stop_powercontrol ;;
        stop-all) stop_all ;;
	*) usage ;;
esac

exit ${RETVAL}

#############################################################################
# end of file
#############################################################################