#! /bin/sh
#
# Copyright (c) 2013-2014 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#

#
# chkconfig: 2345 95 95
#
### BEGIN INIT INFO
# Provides:          mgmtlinkup 
# Default-Start:     3 5
# Default-Stop:      0 1 2 6
# Short-Description: Loop trying to bring up the mgmt interface 
### END INIT INFO

. /etc/init.d/functions

PLATFORM_CONF="/etc/platform/platform.conf"

IFACE=""

# Linux Standard Base (LSB) Error Codes
RETVAL=0
GENERIC_ERROR=1
INVALID_ARGS=2
UNSUPPORTED_FEATURE=3
NOT_INSTALLED=5
NOT_RUNNING=7

PATH=/sbin:/usr/sbin:/bin:/usr/bin:/usr/local/bin
export PATH

LINK_UP_RETRIES=10
LINK_UP_INTERVAL=5

case "$1" in
    start)
        echo -n "$0 : "
        if [ -f ${PLATFORM_CONF} ] ; then
            while [ "${LINK_UP_RETRIES}" -gt 0 ] ; do
                IFACE=`cat ${PLATFORM_CONF} | grep management_interface | cut -f2 -d'='`
                if [ "${IFACE}" != "" ] ; then
                    if ip link show ${IFACE} | grep -sq 'state UP'; then
                        logger "${IFACE} is up"
                        echo "OK $IFACE is up"
                        break
                    fi
                    logger "trying to bring ${IFACE} up"
                    ip link set dev ${IFACE} up
                    sleep ${LINK_UP_INTERVAL}
                    LINK_UP_RETRIES=`expr ${LINK_UP_RETRIES} - 1`
                fi
            done
            if [ "${LINK_UP_RETRIES}" -eq 0 ] ; then
                echo "FAILED to bring $IFACE up"
            fi
        fi
        ;;

    restart)
        start
        ;;

    status)
        ;;

    condrestart)
        $0 restart
        ;;

    *)
        echo "usage: $0 { start | stop | status | restart | condrestart | status }"
        ;;
esac

exit ${RETVAL}