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/** @file
These functions assist in parsing and manipulating a Firmware Volume.
Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _EFI_FV_LIB_H
#define _EFI_FV_LIB_H
//
// Include files
//
#include <string.h>
#include <Common/UefiBaseTypes.h>
#include <Common/PiFirmwareFile.h>
#include <Common/PiFirmwareVolume.h>
EFI_STATUS
InitializeFvLib (
IN VOID *Fv,
IN UINT32 FvLength
)
;
EFI_STATUS
GetFvHeader (
OUT EFI_FIRMWARE_VOLUME_HEADER **FvHeader,
OUT UINT32 *FvLength
)
;
EFI_STATUS
GetNextFile (
IN EFI_FFS_FILE_HEADER *CurrentFile,
OUT EFI_FFS_FILE_HEADER **NextFile
)
;
EFI_STATUS
GetFileByName (
IN EFI_GUID *FileName,
OUT EFI_FFS_FILE_HEADER **File
)
;
EFI_STATUS
GetFileByType (
IN EFI_FV_FILETYPE FileType,
IN UINTN Instance,
OUT EFI_FFS_FILE_HEADER **File
)
;
EFI_STATUS
GetSectionByType (
IN EFI_FFS_FILE_HEADER *File,
IN EFI_SECTION_TYPE SectionType,
IN UINTN Instance,
OUT EFI_FILE_SECTION_POINTER *Section
)
;
//
// will not parse compressed sections
//
EFI_STATUS
VerifyFv (
IN EFI_FIRMWARE_VOLUME_HEADER *FvHeader
)
;
EFI_STATUS
VerifyFfsFile (
IN EFI_FFS_FILE_HEADER *FfsHeader
)
;
UINT32
GetFfsFileLength (
EFI_FFS_FILE_HEADER *FfsHeader
)
;
UINT32
GetSectionFileLength (
EFI_COMMON_SECTION_HEADER *SectionHeader
)
;
UINT32
GetFfsHeaderLength(
IN EFI_FFS_FILE_HEADER *FfsHeader
)
;
UINT32
GetSectionHeaderLength(
IN EFI_COMMON_SECTION_HEADER *SectionHeader
)
;
/*++
Routine Description:
Verify the current pointer points to a FFS file header.
Arguments:
FfsHeader Pointer to an alleged FFS file.
Returns:
EFI_SUCCESS The Ffs header is valid.
EFI_NOT_FOUND This "file" is the beginning of free space.
EFI_VOLUME_CORRUPTED The Ffs header is not valid.
--*/
UINT32
GetLength (
UINT8 *ThreeByteLength
)
;
/*++
Routine Description:
Converts a three byte length value into a UINT32.
Arguments:
ThreeByteLength Pointer to the first of the 3 byte length.
Returns:
UINT32 Size of the section
--*/
EFI_STATUS
GetErasePolarity (
OUT BOOLEAN *ErasePolarity
)
;
/*++
Routine Description:
This function returns with the FV erase polarity. If the erase polarity
for a bit is 1, the function return TRUE.
Arguments:
ErasePolarity A pointer to the erase polarity.
Returns:
EFI_SUCCESS The function completed successfully.
EFI_INVALID_PARAMETER One of the input parameters was invalid.
--*/
UINT8
GetFileState (
IN BOOLEAN ErasePolarity,
IN EFI_FFS_FILE_HEADER *FfsHeader
)
;
/*++
Routine Description:
This function returns a the highest state bit in the FFS that is set.
It in no way validate the FFS file.
Arguments:
ErasePolarity The erase polarity for the file state bits.
FfsHeader Pointer to a FFS file.
Returns:
UINT8 The hightest set state of the file.
--*/
#endif
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