F0E9D620-3E9F-4F6B-8F26-6214FEAB6690

Overview

UEFI network stack PEI/DXE module providing UNDI (Universal Network Driver Interface) support for USB-based network controllers. The module entry initializes EFI tables, locates protocols, and installs a protocol teardown handler. It includes URL parameter parsing, TLV (Type-Length-Value) construction, memory pool management, and NVM-based configuration hashing for persistent network device settings.

Key Functions

• ModuleEntryPoint -- EarlyInit then DxeDriverEntryPoint; installs ProtocolTeardown callback
• EarlyInit -- Saves system table pointers globally; locates base protocols
• DxeDriverEntryPoint -- Main driver init; validates hardware signature (0x103C) and dispatches
• ProtocolBootCallback -- Boot-time protocol callback handler
• ProtocolTeardown -- Protocol teardown and cleanup routine
• UndiChildProtocolAlloc -- Allocates UNDI child protocol structures
• UndiChildProtocolRegister -- Registers child protocol instances
• UtlMemAllocStruct / UtlMemAlloc / UtlMemFree / UtlMemDup -- Memory allocation utilities
• UtlStrCatMemPool / UtlStrStrWide -- String manipulation with memory pool
• UtlParseUrlParam / UtlParseUrlStr -- URL parameter parsing
• UtlBuildTlv -- Type-Length-Value binary encoding
• UtlConfigHash / UtlConfigCalcHash -- Configuration data hashing for integrity
• UtlConfigSaveToNvm -- Saves configuration data to NVM
• UtlInstallProtocol -- Protocol installation helper

Dependencies

UEFI Boot Services, UEFI Runtime Services, UNDI Protocol, USB Protocol

Platform

Lenovo HR650X (Purley/LBG-PCH), X64