+ case EFI_MTFTP6_OPCODE_OACK:\r
+ if (Len <= MTFTP6_OPCODE_LEN) {\r
+ goto ON_EXIT;\r
+ }\r
+\r
+ //\r
+ // Handle the Oack packet of Wrq.\r
+ //\r
+ Status = Mtftp6WrqHandleOack (Instance, Packet, Len, &UdpPacket, &IsCompleted);\r
+ break;\r
+\r
+ default:\r
+ //\r
+ // Drop and return eror if received error message.\r
+ //\r
+ Status = EFI_TFTP_ERROR;\r
+ break;\r