meta-digi/meta-digi-dey/recipes-core/init-ifupdown/init-ifupdown-1.0/ifup

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#!/bin/sh
#===============================================================================
#
# ifup
#
# Copyright (C) 2013 by Digi International Inc.
# All rights reserved.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 as published by
# the Free Software Foundation.
#
#
# !Description: Set network interfaces MAC addresses on i.MX5X
#
#===============================================================================
set -e
# loopback methods are directly handled by ifup
[ "${METHOD}" = "loopback" ] && exit 0
# Do nothing if interface does not exist
[ -d "/sys/class/net/${IFACE}" ] || exit 0
driver="$(readlink -f -n /sys/class/net/${IFACE} | sed 's,/sys/devices/platform/\(.\{3\}\).*,\1,g')"
case "${IFACE}:${driver}" in
eth1: | *:sms)
macaddr="$(sed -ne 's,^.*ethaddr3=\([^[:blank:]]\+\)[:blank:]*.*,\1,g;T;p' /proc/cmdline)"
esac
if [ -n "${macaddr}" ]; then
ifconfig ${IFACE} hw ether ${macaddr} up
fi