u-boot.git/lib/efi_loader/efi_net.c, branch v2023.07.01

efi_loader: fix handling of DHCP acknowledge

2022-12-02T18:17:24Z

The dhcp command may be executed after the first UEFI command. We should still update the EFI_PXE_BASE_CODE_PROTOCOL. Don't leak content of prior acknowledge packages. Handle failing allocation when calling malloc(). Signed-off-by: Heinrich Schuchardt Reviewed-by: Ilias Apalodimas

efi_loader: fix use after free in receive path

2020-10-19T20:59:53Z

With DM enabled the ethernet code will receive a packet, call the push method that's set by the EFI network implementation and then free the packet. Unfortunately the push methods only sets a flag that the packet needs to be handled, but the code that provides the packet to an EFI application runs after the packet has already been freed. To rectify this issue, adjust the push method to accept the packet and store it in a temporary buffer. The EFI application then gets the data copied from that buffer. This way the packet is cached until is is needed. The DM Ethernet stack tries to receive 32 packets at once, thus we better allocate as many buffers as the stack. Signed-off-by: Patrick Wildt Signed-off-by: Heinrich Schuchardt

common: Drop net.h from common header

2020-05-18T21:33:31Z

Move this header out of the common header. Network support is used in quite a few places but it still does not warrant blanket inclusion. Note that this net.h header itself has quite a lot in it. It could be split into the driver-mode support, functions, structures, checksumming, etc. Signed-off-by: Simon Glass

doc: UEFI API documentation

2019-09-05T21:18:52Z

Add some more files to the UEFI API documentation. Correct some Sphinx comments. Signed-off-by: Heinrich Schuchardt

efi_loader: implement MCastIPtoMAC

2019-09-05T21:18:51Z

Implement the MCastIPtoMAC service of the simple network protocol. It converts an multicast IPv4 (or IPv6) address to a multicast Ethernet address. Signed-off-by: Heinrich Schuchardt

efi_loader: fix status management in network stack

2019-09-05T21:18:51Z

The network should start in status EfiSimpleNetworkStopped. Add and correct status checks in the simple network protocol. Correct the unit test: * Shutdown() and Stop() during setup if needed * invoke Shutdown() before Stop() when tearing down Signed-off-by: Heinrich Schuchardt

efi_loader: EFI_SIMPLE_NETWORK.Transmit() fill header

2019-09-05T21:18:51Z

Fill the media header in EFI_SIMPLE_NETWORK.Transmit(). Check that the buffer size is large enough for the header. Signed-off-by: Heinrich Schuchardt

efi_loader: interrupts in simple network protocol

2019-09-05T21:18:51Z

GetStatus() must clear the interrupt status. Transmit() should set the TX interrupt. Receive() should clear the RX interrupt. Initialize() and Start() should clear the interrupt status. Signed-off-by: Heinrich Schuchardt

efi_loader: EFI_PXE_BASE_CODE_PROTOCOL stub

2019-08-15T18:33:10Z

U-Boot implements the EFI_PXE_BASE_CODE_PROTOCOL because GRUB uses the mode information for booting via PXE. All function pointers in the protocol were NULL up to now which will cause immediate crashes when the services of the protocol are called. Create function stubs for all services of the protocol returning EFI_UNSUPPORTED. Signed-off-by: Heinrich Schuchardt

efi_loader: parameter checks simple network protocol

2019-05-19T06:10:10Z

Check buffer pointers are not NULL as required by the UEFI 2.7 spec. Return EFI_UNSUPPORTED instead of EFI_INVALID_PARAMETER when trying to transmit with non-zero header_size. Signed-off-by: Heinrich Schuchardt