#!/bin/sh
#
# Copyright (C) 2010 - 2014, Linaro Limited.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that 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 Street, Fifth Floor, Boston, MA 02110-1301, USA.

connection=${1}

for row in $(grep ${connection} common/lng-mapping-table-eth); do
    ifname=""
    mac=$(echo ${row} | awk -F'=' '{print $2}')
    ifname=$(ip link show | grep -B1 "${mac}" | awk -F':' '{print $2}'|head -n1)
    if [ -n ${ifname} ]; then
        ifconfig ${ifname} up
        udhcpc -i ${ifname}
        echo ${ifname}
        break
    fi
done