#!/bin/sh
# MAC地址恢复脚本
# 从vendor_storage读取MAC地址并恢复到/etc/network/interfaces
# 保持大写格式

INTERFACES_FILE="/etc/network/interfaces"

# 从vendor_storage读取MAC (hex格式)
MAC_HEX=$(vendor_storage -r VENDOR_LAN_MAC_ID -t hex 2>/dev/null | \
          grep -A1 "VENDOR_LAN_MAC_ID:" | tail -1 | \
          awk '{print $2$3$4$5$6$7}' | tr 'a-f' 'A-F')

if [ -n "$MAC_HEX" ] && [ ${#MAC_HEX} -eq 12 ]; then
    # 转换为标准MAC格式: 90A9F7300001 -> 90:A9:F7:30:00:01
    MAC_ADDR=$(echo $MAC_HEX | sed 's/../&:/g;s/:$//')
    
    # 更新interfaces文件
    if grep -q "hwaddress ether" $INTERFACES_FILE; then
        sed -i "s/hwaddress ether .*/hwaddress ether $MAC_ADDR/" $INTERFACES_FILE
        echo "MAC address updated: $MAC_ADDR"
    else
        # 在eth0配置后添加MAC地址
        sed -i "/iface eth0 inet/a \    hwaddress ether $MAC_ADDR" $INTERFACES_FILE
        echo "MAC address added: $MAC_ADDR"
    fi
    
    echo "MAC address restored from vendor_storage: $MAC_ADDR"
    exit 0
else
    echo "Warning: No valid MAC address in vendor_storage"
    exit 1
fi