#!/bin/sh
# Copyright (C) 2018 OpenWrt.org

RECOVERY_PART=/dev/mmcblk0p1

preinit_set_mac_address() {
	local mac

	. /lib/functions.sh
	. /lib/functions/system.sh

	case $(board_name) in
	unielec,u7623-02-emmc-512m)
		if [ -b $RECOVERY_PART ]; then
			insmod nls_cp437
			insmod nls_iso8859-1
			insmod fat
			insmod vfat
			mkdir -p /tmp/recovery
			mount -o rw,noatime $RECOVERY_PART /tmp/recovery

			if [ -f "/tmp/recovery/mac_addr" ];
			then
				mac=$(cat /tmp/recovery/mac_addr)
			else
				mac=$(cat /sys/class/net/eth0/address)
				echo "$mac" > /tmp/recovery/mac_addr
			fi

			sync
			umount /tmp/recovery
			rm -rf /tmp/recovery
		fi

		ip link set dev wan address $mac 2> /dev/null

		mac=$(macaddr_add $mac 1)

		ip link set dev lan0 address $mac 2>/dev/null
		ip link set dev lan1 address $mac 2>/dev/null
		ip link set dev lan2 address $mac 2>/dev/null
		ip link set dev lan3 address $mac 2>/dev/null
		;;
	esac
}

boot_hook_add preinit_main preinit_set_mac_address