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Protocols — Network Support
Version 1.10 12/01/02 15-55
HeaderPtr If HeaderSize is not NULL, a pointer to a header to be prepended to
the data at BufferPtr.
BufferSize A pointer to the size of the data at BufferPtr.
BufferPtr A pointer to the data to be written.
Description
This function writes a UDP packet specified by the (optional HeaderPtr and) BufferPtr
parameters to the network interface. The UDP header is automatically built by this routine. It uses
the parameters OpFlags, DestIp, DestPort, GatewayIp, SrcIp, and SrcPort to build
this header. If the packet is successfully built and transmitted through the network interface, then
EFI_SUCCESS will be returned. If a timeout occurs during the transmission of the packet, then
EFI_TIMEOUT will be returned. If an ICMP error occurs during the transmission of the packet,
then the IcmpErrorReceived field is set to TRUE, the IcmpError field is filled in and
EFI_ICMP_ERROR will be returned. If the Callback Protocol does not return
EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE, then EFI_ABORTED will be
returned.
Status Codes Returned
EFI_SUCCESS The UDP Write operation was completed.
EFI_NOT_STARTED The PXE Base Code Protocol is in the stopped state.
EFI_INVALID_PARAMETER One of the parameters is not valid.
EFI_DEVICE_ERROR The network device encountered an error during this operation.
EFI_BAD_BUFFER_SIZE The buffer is too long to be transmitted.
EFI_ABORTED The callback function aborted the UDP Write operation.
EFI_TIMEOUT The UDP Write operation timed out.
EFI_ICMP_ERROR The UDP Write operation generated an error.