Ip4Dxe

Ip4Dxe implements the IPv4 protocol driver for the AMI UEFI network stack, producing EFI_IP4_SERVICE_BINDING_PROTOCOL, EFI_IP4_PROTOCOL, and EFI_IP4_CONFIG2_PROTOCOL. It handles IP packet input and output, reassembly and fragmentation, route table management, ARP-mediated interface management, and ICMP error generation. The driver consumes the Managed Network Protocol for underlying MNP frame transmit/receive and supports HII-based configuration via the Config2 NVRAM interface.

Key Functions

• DriverEntry, DriverBindingSupported, DriverBindingStart, DriverBindingStop
• Ip4CreateService, Ip4DestroyService, Ip4ServiceBindingCx, Ip4DriverNotify
• Ip4CreateInstance, Ip4DestroyInstance, Ip4Configure, Ip4Receive, Ip4Transmit
• Ip4Group, Ip4Routes, Ip4Cancel, Ip4Polls
• Ip4InputHandler, Ip4InputDhcpcd, Ip4AssembleFragments, Ip4IcmpError
• Ip4ConfigInterface, Ip4IfStartNow, Ip4IfStop, Ip4IfInitArpWaitList
• Ip4RouteTableFree, Ip4RouteTableAdd, Ip4RouteTableDel
• Ip4Config2Init, Ip4Config2Set, Ip4Config2Get

Dependencies

• EFI_MANAGED_NETWORK_PROTOCOL, EFI_IP4_PROTOCOL, EFI_IP4_CONFIG2_PROTOCOL
• UefiBootServicesTableLib, BaseMemoryLib, MemoryAllocationLib, DxeNetLib
• HII Database Protocol, HII Font Protocol, DPC Protocol

Platform

x86-64, PE32+, UEFI DXE driver, 6 sections (.text/.rdata/.data/section_3/.xdata/.reloc), entry at 0x548