MdePkg/UefiDevicePathLib: Fix the wrong MAC address length

Network interface type should be checked before the conversion between
text device path node and MAC device path. Otherwise, the MAC text string
can't be converted to the representation of a device node, which leads to
the series failure of network HII configuration(e.g. IP, VLAN, HTTP Boot
configuration in Network Device List).

Cc: Liming Gao <liming.gao@intel.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Ye Ting <ting.ye@intel.com>
Cc: Fu Siyuan <siyuan.fu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>

diff --git a/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c b/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c
index ae38859542de4b3ecac969bd7777e8acc08784b7..a52cbef48f45b7a3c391a8d2de2e87f1495c5662 100644 (file)
--- a/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c
+++ b/MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c
@@ -1800,6 +1800,10 @@ DevPathFromTextMAC (
   MACDevPath->IfType   = (UINT8) Strtoi (IfTypeStr);\r
 \r
   Length = sizeof (EFI_MAC_ADDRESS);\r
+  if (MACDevPath->IfType == 0x01 || MACDevPath->IfType == 0x00) {\r
+    Length = 6;\r
+  }\r
+\r
   StrHexToBytes (AddressStr, Length * 2, MACDevPath->MacAddress.Addr, Length);\r
 \r
   return (EFI_DEVICE_PATH_PROTOCOL *) MACDevPath;\r