#!/bin/bash

#

# Bring up/down opensm

#

# chkconfig: - 15 85

# description: Activates/Deactivates InfiniBand Subnet Manager

#

### BEGIN INIT INFO

# Provides:       opensm

# Required-Start: $syslog @RDMA_SERVICE@

# Required-Stop: $syslog @RDMA_SERVICE@

# Default-Start: @DEFAULT_START@

# Default-Stop: @DEFAULT_STOP@

# Description:  Manage OpenSM

### END INIT INFO

#

# Copyright (c) 2008 Voltaire, Inc. All rights reserved.

# Copyright (c) 2006 Mellanox Technologies. All rights reserved.

#

# This Software is licensed under one of the following licenses:

#

# 1) under the terms of the "Common Public License 1.0" a copy of which is

#    available from the Open Source Initiative, see

#    http://www.opensource.org/licenses/cpl.php.

#

# 2) under the terms of the "The BSD License" a copy of which is

#    available from the Open Source Initiative, see

#    http://www.opensource.org/licenses/bsd-license.php.

#

# 3) under the terms of the "GNU General Public License (GPL) Version 2" a

#    copy of which is available from the Open Source Initiative, see

#    http://www.opensource.org/licenses/gpl-license.php.

#

# Licensee has the right to choose one of the above licenses.

#

# Redistributions of source code must retain the above copyright

# notice and one of the license notices.

#

# Redistributions in binary form must reproduce both the above copyright

# notice, one of the license notices in the documentation

# and/or other materials provided with the distribution.

#

#

#  $Id: openib-1.0-opensm.init,v 1.5 2006/08/02 18:18:23 dledford Exp $

#

# processname: @sbindir@/opensm

# config: @sysconfdir@/sysconfig/opensm

# pidfile: /var/run/opensm.pid

prefix=@prefix@

exec_prefix=@exec_prefix@

. /etc/rc.d/init.d/functions

CONFIG=@sysconfdir@/sysconfig/opensm

if [ -f $CONFIG ]; then

    . $CONFIG

fi

prog=@sbindir@/opensm

bin=${prog##*/}

# Handover daemon for updating guid2lid cache file

sldd_prog=@sbindir@/sldd.sh

sldd_bin=${sldd_prog##*/}

sldd_pid_file=/var/run/sldd.pid

ACTION=$1

# Setting OpenSM start parameters

PID_FILE=/var/run/${bin}.pid

touch $PID_FILE

if [[ -n "${OSM_HOSTS}" && $(echo -n ${OSM_HOSTS} | wc -w | tr -d '[:space:]') -gt 1  ]]; then

    HONORE_GUID2LID="--honor_guid2lid"

fi

#########################################################################

start_sldd()

{

    if [ -f $sldd_pid_file ]; then

            local line p

            read line < $sldd_pid_file

            for p in $line ; do

                    [ -z "${p//[0-9]/}" -a -d "/proc/$p" ] && sldd_pid="$sldd_pid $p"

            done

    fi

    if [ -z "$sldd_pid" ]; then

        sldd_pid=`pidof -x $sldd_bin`

    fi

    if [ -n "${sldd_pid:-}" ] ; then

	kill -9 ${sldd_pid} > /dev/null 2>&1

    fi

    $sldd_prog > /dev/null 2>&1 &

    sldd_pid=$!

    echo ${sldd_pid} > $sldd_pid_file

    # Sleep is needed in order to update local gid2lid cache file before running opensm

    sleep 3

}

stop_sldd()

{

    if [ -f $sldd_pid_file ]; then

            local line p

            read line < $sldd_pid_file

            for p in $line ; do

                    [ -z "${p//[0-9]/}" -a -d "/proc/$p" ] && sldd_pid="$sldd_pid $p"

            done

    fi

    if [ -z "$sldd_pid" ]; then

        sldd_pid=`pidof -x $sldd_bin`

    fi

    if [ -n "${sldd_pid:-}" ] ; then

        kill -15 ${sldd_pid} > /dev/null 2>&1

    fi

}

start()

{

    local OSM_PID=

    pid=""

    if [ -f $PID_FILE ]; then

            local line p

            read line < $PID_FILE

            for p in $line ; do

                    [ -z "${p//[0-9]/}" -a -d "/proc/$p" ] && pid="$pid $p"

            done

    fi

    if [ -z "$pid" ]; then

        pid=`pidof -o $$ -o $PPID -o %PPID -x $bin`

    fi

    if [ -n "${pid:-}" ] ; then

        echo $"${bin} (pid $pid) is already running..."

    else

	if [ -n "${HONORE_GUID2LID}" ]; then

		# Run sldd daemod

		start_sldd

	fi

        # Start opensm

	echo -n "Starting IB Subnet Manager"

        $prog --daemon ${HONORE_GUID2LID} ${OPTIONS} > /dev/null

        cnt=0; alive=0

        while [ $cnt -lt 6 -a $alive -ne 1 ]; do

		echo -n ".";

		sleep 1

		alive=0

                OSM_PID=`pidof $prog`

                if [ "$OSM_PID" != "" ]; then

                        alive=1

                fi

		let cnt++;

	done

        echo $OSM_PID > $PID_FILE

        checkpid $OSM_PID

        RC=$?

        [ $RC -eq 0 ] && echo_success || echo_failure

        [ $RC -eq 0 ] && touch /var/lock/subsys/opensm

	echo

    fi

return $RC

}

stop()

{

    local pid=

    local pid1=

    local pid2=

    # Stop sldd daemon

    stop_sldd

    if [ -f $PID_FILE ]; then

            local line p

            read line < $PID_FILE

            for p in $line ; do

                    [ -z "${p//[0-9]/}" -a -d "/proc/$p" ] && pid1="$pid1 $p"

            done

    fi

    pid2=`pidof -o $$ -o $PPID -o %PPID -x $bin`

    pid=`echo "$pid1 $pid2" | sed -e 's/\ /\n/g' | sort -n | uniq | sed -e 's/\n/\ /g'`

    if [ -n "${pid:-}" ] ; then

        # Kill opensm

	echo -n "Stopping IB Subnet Manager."

        kill -15 $pid > /dev/null 2>&1

		cnt=0; alive=1

        while [ $cnt -lt 6 -a $alive -ne 0 ]; do

		echo -n ".";

		alive=0

		for p in $pid; do

			if checkpid $p ; then alive=1; echo -n "-"; fi

		done

		let cnt++;

		sleep $alive

	done

        for p in $pid

        do

            while checkpid $p ; do

                kill -KILL $p > /dev/null 2>&1

                echo -n "+"

                sleep 1

            done

        done

        checkpid $pid

        RC=$?

        [ $RC -eq 0 ] && echo_failure || echo_success

	echo

        RC=$((! $RC))

    else

	echo -n "Stopping IB Subnet Manager."

        echo_failure

	echo

        RC=1

    fi

    # Remove pid file if any.

    rm -f $PID_FILE

    rm -f /var/lock/subsys/opensm

    return $RC

}

status()

{

    local pid

    # First try "pidof"

    pid=`pidof -o $$ -o $PPID -o %PPID -x ${bin}`

    if [ -n "$pid" ]; then

            echo $"${bin} (pid $pid) is running..."

            return 0

    fi

     # Next try "/var/run/opensm.pid" files

     if [ -f $PID_FILE ] ; then

             read pid < $PID_FILE

             if [ -n "$pid" ]; then

                     echo $"${bin} dead but pid file $PID_FILE exists"

                     return 1

             fi

     fi

     echo $"${bin} is stopped"

     return 3

}

case $ACTION in

	start)

                start

		;;

	stop)

		stop

		;;

	restart)

		stop

                start

		;;

	status)

		status

		;;

	condrestart)

		pid=`pidof -o $$ -o $PPID -o %PPID -x $bin`

		if [ -n "$pid" ]; then

			stop

			sleep 1

			start

		fi

		;;

	*)

		echo

		echo "Usage: `basename $0` {start|stop|restart|status}"

		echo

		exit 1

		;;

esac

RC=$?

exit $RC