Mtftp4Dxe

Index	Module	Size	Phase
150	Mtftp4Dxe	41,248 bytes (40 KB)	Decompiled

Mtftp4Dxe implements the UEFI MTFTP4 (Multicast Trivial File Transfer Protocol) driver for PXE network boot. It provides the EFI_MTFTP4_PROTOCOL and EFI_MTFTP4_SERVICE_BINDING_PROTOCOL for file transfer over UDP/IPv4, supporting both unicast and multicast TFTP sessions. The driver implements the MTFTP4 state machine including session management, packet retransmission with exponential backoff, block numbering, and TFTP option negotiation (block size, timeout, file size).

Key Functions

ModuleEntryPoint, Mtftp4LibConstructor, Mtftp4DriverEntryPoint
Mtftp4CreateService, Mtftp4DestroyService
Mtftp4ServiceBindingCreateChild, Mtftp4ServiceBindingDestroyChild
Mtftp4GetModeData, Mtftp4Configure, Mtftp4GetInfo, Mtftp4ParseOptions
Mtftp4ReadFile, Mtftp4WriteFile, Mtftp4ReadDirectory
Mtftp4Poll, Mtftp4Timeout, Mtftp4Retransmit
Mtftp4UdpTransmit, Mtftp4UdpReceive

Dependencies

EFI_MTFTP4_PROTOCOL, EFI_MTFTP4_SERVICE_BINDING_PROTOCOL
UefiBootServicesTableLib, UefiRuntimeServicesTableLib, BaseMemoryLib
DxeNetLib, DxeUdpIoLib, DxeDpcLib

Platform

x86-64, PE32+, UEFI DXE driver, 6 sections (.text/.rdata/.data/section_3/.xdata/.reloc), entry at 0x528