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/** @file
Routines to process MTFTP4 options.
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef __EFI_MTFTP4_OPTION_H__
#define __EFI_MTFTP4_OPTION_H__
#define MTFTP4_SUPPORTED_OPTIONS 5
#define MTFTP4_OPCODE_LEN 2
#define MTFTP4_ERRCODE_LEN 2
#define MTFTP4_BLKNO_LEN 2
#define MTFTP4_DATA_HEAD_LEN 4
#define MTFTP4_BLKSIZE_EXIST 0x01
#define MTFTP4_TIMEOUT_EXIST 0x02
#define MTFTP4_TSIZE_EXIST 0x04
#define MTFTP4_MCAST_EXIST 0x08
#define MTFTP4_WINDOWSIZE_EXIST 0x10
typedef struct {
UINT16 BlkSize;
UINT16 WindowSize;
UINT8 Timeout;
UINT32 Tsize;
IP4_ADDR McastIp;
UINT16 McastPort;
BOOLEAN Master;
UINT32 Exist;
} MTFTP4_OPTION;
/**
Allocate and fill in a array of Mtftp options from the Packet.
It first calls Mtftp4FillOption to get the option number, then allocate
the array, at last, call Mtftp4FillOption again to save the options.
@param Packet The packet to parse
@param PacketLen The length of the packet
@param OptionCount The number of options in the packet
@param OptionList The point to get the option array.
@retval EFI_INVALID_PARAMETER The parametera are invalid or packet isn't a
well-formatted OACK packet.
@retval EFI_SUCCESS The option array is build
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory for the array
**/
EFI_STATUS
Mtftp4ExtractOptions (
IN EFI_MTFTP4_PACKET *Packet,
IN UINT32 PacketLen,
OUT UINT32 *OptionCount,
OUT EFI_MTFTP4_OPTION **OptionList OPTIONAL
);
/**
Parse the option in Options array to MTFTP4_OPTION which program
can access directly.
@param Options The option array, which contains addresses of each
option's name/value string.
@param Count The number of options in the Options
@param Request Whether this is a request or OACK. The format of
multicast is different according to this setting.
@param Operation The current performed operation.
@param MtftpOption The MTFTP4_OPTION for easy access.
@retval EFI_INVALID_PARAMETER The option is malformatted
@retval EFI_UNSUPPORTED Some option isn't supported
@retval EFI_SUCCESS The option are OK and has been parsed.
**/
EFI_STATUS
Mtftp4ParseOption (
IN EFI_MTFTP4_OPTION *Options,
IN UINT32 Count,
IN BOOLEAN Request,
IN UINT16 Operation,
OUT MTFTP4_OPTION *MtftpOption
);
/**
Parse the options in the OACK packet to MTFTP4_OPTION which program
can access directly.
@param Packet The OACK packet to parse
@param PacketLen The length of the packet
@param Operation The current performed operation.
@param MtftpOption The MTFTP_OPTION for easy access.
@retval EFI_INVALID_PARAMETER The packet option is malformatted
@retval EFI_UNSUPPORTED Some option isn't supported
@retval EFI_SUCCESS The option are OK and has been parsed.
**/
EFI_STATUS
Mtftp4ParseOptionOack (
IN EFI_MTFTP4_PACKET *Packet,
IN UINT32 PacketLen,
IN UINT16 Operation,
OUT MTFTP4_OPTION *MtftpOption
);
extern CHAR8 *mMtftp4SupportedOptions[MTFTP4_SUPPORTED_OPTIONS];
#endif
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