Extensible Firmware Interface Specification
260 12/12/00 Version 1.02
The format of the data returned from a TFTP read directory operation is a null-terminated filename
followed by a null-terminated information string, of the form “size year-month-day
hour:minute:second” (i.e. %d %d-%d-%d %d:%d:%f - note that the seconds field can be a decimal
number), where the date and time are UTC. For an MTFTP read directory command, there is
additionally a null-terminated multicast IP address preceding the filename of the form
%d.%d.%d.%d for IP v4 (TBD for IP v6). The final entry is itself null-terminated, so that the final
information string is terminated with two null octets.
Status Codes Returned
EFI_SUCCESS The TFTP/MTFTP 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_BUFFER_TOO_SMALL The buffer is not large enough to complete the read operation.
EFI_ABORTED The callback function aborted the TFTP/MTFTP operation.
EFI_TIMEOUT The TFTP/MTFTP operation timed out.
EFI_TFTP_ERROR The TFTP/MTFTP operation generated an error.