没有固定mac地址的设备支持持久化设备的mac地址

services/set-mac.sh

 #!/system/bin/sh
-if [[ -f /system/.no_macaddres_in_eeprom ]]
+if [ "$(cat /sys/class/net/eth0/addr_assign_type)" != "0" ]
 then
     macaddress=$(cat /data/.macaddress)
-    if [[ -z $macaddress ]]
+    if [ -z "$macaddress" ]
     then
-        MAC_ADDRESS_OUIID="2c:f0:5d"
-        macaddress=$(hexdump -n3 -e"/3 \"$MAC_ADDRESS_OUIID\" 3/1 \":%02x\"" /dev/random)
-        echo $macaddress > /data/.macaddress
-    fi
+        macaddress="$(ip link show eth0 |grep "link/ether" | head -n 1 | awk '{print $2}')"
+        echo "$macaddress" > /data/.macaddress
+    else
         ip link set eth0 down
-    ip link set dev eth0 addr $macaddress
+        ip link set dev eth0 addr "$macaddress"
         ip link set eth0 up
         restart netd
+    fi
 fi