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