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Check in DxeCore for Nt32 platform. Currently, it does not follow PI/UEFI2.1.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3045 6f19259b-4bc3-4df7-8a09-765794883524
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yshang1
2007-07-04 10:51:54 +00:00
parent db6c5cc103
commit 28a0029718
42 changed files with 24972 additions and 0 deletions
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466
MdeModulePkg/Core/Dxe/FwVolDriver.h Normal file
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/*++
Copyright (c) 2006, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
FwVolDriver.h
Abstract:
Firmware File System protocol. Layers on top of Firmware
Block protocol to produce a file abstraction of FV based files.
--*/
#ifndef __FWVOL_H
#define __FWVOL_H
//
// Used to track all non-deleted files
//
typedef struct {
LIST_ENTRY Link;
EFI_FFS_FILE_HEADER *FfsHeader;
UINTN StreamHandle;
EFI_SECTION_EXTRACTION_PROTOCOL *Sep;
} FFS_FILE_LIST_ENTRY;
typedef struct {
UINTN Signature;
EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *Fvb;
EFI_HANDLE Handle;
EFI_FIRMWARE_VOLUME_PROTOCOL Fv;
EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;
UINT8 *CachedFv;
UINT8 *EndOfCachedFv;
FFS_FILE_LIST_ENTRY *LastKey;
LIST_ENTRY FfsFileListHeader;
UINT8 ErasePolarity;
} FV_DEVICE;
#define FV_DEVICE_FROM_THIS(a) CR(a, FV_DEVICE, Fv, FV_DEVICE_SIGNATURE)
EFI_STATUS
EFIAPI
FvGetVolumeAttributes (
IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,
OUT EFI_FV_ATTRIBUTES *Attributes
)
/*++
Routine Description:
Retrieves attributes, insures positive polarity of attribute bits, returns
resulting attributes in output parameter
Arguments:
This - Calling context
Attributes - output buffer which contains attributes
Returns:
EFI_SUCCESS - Successfully got volume attributes
--*/
;
EFI_STATUS
EFIAPI
FvSetVolumeAttributes (
IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,
IN OUT EFI_FV_ATTRIBUTES *Attributes
)
/*++
Routine Description:
Sets current attributes for volume
Arguments:
This - Calling context
Attributes - At input, contains attributes to be set. At output contains
new value of FV
Returns:
EFI_UNSUPPORTED - Could not be set.
--*/
;
EFI_STATUS
EFIAPI
FvGetNextFile (
IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,
IN OUT VOID *Key,
IN OUT EFI_FV_FILETYPE *FileType,
OUT EFI_GUID *NameGuid,
OUT EFI_FV_FILE_ATTRIBUTES *Attributes,
OUT UINTN *Size
)
/*++
Routine Description:
Given the input key, search for the next matching file in the volume.
Arguments:
This - Indicates the calling context.
FileType - FileType is a pointer to a caller allocated
EFI_FV_FILETYPE. The GetNextFile() API can filter it's
search for files based on the value of *FileType input.
A *FileType input of 0 causes GetNextFile() to search for
files of all types. If a file is found, the file's type
is returned in *FileType. *FileType is not modified if
no file is found.
Key - Key is a pointer to a caller allocated buffer that
contains implementation specific data that is used to
track where to begin the search for the next file.
The size of the buffer must be at least This->KeySize
bytes long. To reinitialize the search and begin from
the beginning of the firmware volume, the entire buffer
must be cleared to zero. Other than clearing the buffer
to initiate a new search, the caller must not modify the
data in the buffer between calls to GetNextFile().
NameGuid - NameGuid is a pointer to a caller allocated EFI_GUID.
If a file is found, the file's name is returned in
*NameGuid. *NameGuid is not modified if no file is
found.
Attributes - Attributes is a pointer to a caller allocated
EFI_FV_FILE_ATTRIBUTES. If a file is found, the file's
attributes are returned in *Attributes. *Attributes is
not modified if no file is found.
Size - Size is a pointer to a caller allocated UINTN.
If a file is found, the file's size is returned in *Size.
*Size is not modified if no file is found.
Returns:
EFI_SUCCESS - Successfully find the file.
EFI_DEVICE_ERROR - Device error.
EFI_ACCESS_DENIED - Fv could not read.
EFI_NOT_FOUND - No matching file found.
EFI_INVALID_PARAMETER - Invalid parameter
--*/
;
EFI_STATUS
EFIAPI
FvReadFile (
IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,
IN EFI_GUID *NameGuid,
IN OUT VOID **Buffer,
IN OUT UINTN *BufferSize,
OUT EFI_FV_FILETYPE *FoundType,
OUT EFI_FV_FILE_ATTRIBUTES *FileAttributes,
OUT UINT32 *AuthenticationStatus
)
/*++
Routine Description:
Locates a file in the firmware volume and
copies it to the supplied buffer.
Arguments:
This - Indicates the calling context.
NameGuid - Pointer to an EFI_GUID, which is the filename.
Buffer - Buffer is a pointer to pointer to a buffer in
which the file or section contents or are returned.
BufferSize - BufferSize is a pointer to caller allocated
UINTN. On input *BufferSize indicates the size
in bytes of the memory region pointed to by
Buffer. On output, *BufferSize contains the number
of bytes required to read the file.
FoundType - FoundType is a pointer to a caller allocated
EFI_FV_FILETYPE that on successful return from Read()
contains the type of file read. This output reflects
the file type irrespective of the value of the
SectionType input.
FileAttributes - FileAttributes is a pointer to a caller allocated
EFI_FV_FILE_ATTRIBUTES. On successful return from
Read(), *FileAttributes contains the attributes of
the file read.
AuthenticationStatus - AuthenticationStatus is a pointer to a caller
allocated UINTN in which the authentication status
is returned.
Returns:
EFI_SUCCESS - Successfully read to memory buffer.
EFI_WARN_BUFFER_TOO_SMALL - Buffer too small.
EFI_NOT_FOUND - Not found.
EFI_DEVICE_ERROR - Device error.
EFI_ACCESS_DENIED - Could not read.
EFI_INVALID_PARAMETER - Invalid parameter.
EFI_OUT_OF_RESOURCES - Not enough buffer to be allocated.
--*/
;
EFI_STATUS
EFIAPI
FvReadFileSection (
IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,
IN EFI_GUID *NameGuid,
IN EFI_SECTION_TYPE SectionType,
IN UINTN SectionInstance,
IN OUT VOID **Buffer,
IN OUT UINTN *BufferSize,
OUT UINT32 *AuthenticationStatus
)
/*++
Routine Description:
Locates a section in a given FFS File and
copies it to the supplied buffer (not including section header).
Arguments:
This - Indicates the calling context.
NameGuid - Pointer to an EFI_GUID, which is the filename.
SectionType - Indicates the section type to return.
SectionInstance - Indicates which instance of sections with a type of
SectionType to return.
Buffer - Buffer is a pointer to pointer to a buffer in which
the file or section contents or are returned.
BufferSize - BufferSize is a pointer to caller allocated UINTN.
AuthenticationStatus -AuthenticationStatus is a pointer to a caller
allocated UINT32 in which the authentication status
is returned.
Returns:
EFI_SUCCESS - Successfully read the file section into buffer.
EFI_WARN_BUFFER_TOO_SMALL - Buffer too small.
EFI_NOT_FOUND - Section not found.
EFI_DEVICE_ERROR - Device error.
EFI_ACCESS_DENIED - Could not read.
EFI_INVALID_PARAMETER - Invalid parameter.
--*/
;
EFI_STATUS
EFIAPI
FvWriteFile (
IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,
IN UINT32 NumberOfFiles,
IN EFI_FV_WRITE_POLICY WritePolicy,
IN EFI_FV_WRITE_FILE_DATA *FileData
)
/*++
Routine Description:
Writes one or more files to the firmware volume.
Arguments:
This - Indicates the calling context.
WritePolicy - WritePolicy indicates the level of reliability for
the write in the event of a power failure or other
system failure during the write operation.
FileData - FileData is an pointer to an array of EFI_FV_WRITE_DATA.
Each element of FileData[] represents a file to be written.
Returns:
EFI_SUCCESS - Files successfully written to firmware volume
EFI_OUT_OF_RESOURCES - Not enough buffer to be allocated.
EFI_DEVICE_ERROR - Device error.
EFI_WRITE_PROTECTED - Write protected.
EFI_NOT_FOUND - Not found.
EFI_INVALID_PARAMETER - Invalid parameter.
EFI_UNSUPPORTED - This function not supported.
--*/
;
//
//Internal functions
//
typedef enum {
EfiCheckSumUint8 = 0,
EfiCheckSumUint16 = 1,
EfiCheckSumUint32 = 2,
EfiCheckSumUint64 = 3,
EfiCheckSumMaximum = 4
} EFI_CHECKSUM_TYPE;
BOOLEAN
IsBufferErased (
IN UINT8 ErasePolarity,
IN VOID *Buffer,
IN UINTN BufferSize
)
/*++
Routine Description:
Check if a block of buffer is erased
Arguments:
ErasePolarity - Erase polarity attribute of the firmware volume
Buffer - The buffer to be checked
BufferSize - Size of the buffer in bytes
Returns:
TRUE - The block of buffer is erased
FALSE - The block of buffer is not erased
--*/
;
EFI_FFS_FILE_STATE
GetFileState (
IN UINT8 ErasePolarity,
IN EFI_FFS_FILE_HEADER *FfsHeader
)
/*++
Routine Description:
Get the FFS file state by checking the highest bit set in the header's state field
Arguments:
ErasePolarity - Erase polarity attribute of the firmware volume
FfsHeader - Points to the FFS file header
Returns:
FFS File state
--*/
;
VOID
SetFileState (
IN UINT8 State,
IN EFI_FFS_FILE_HEADER *FfsHeader
)
/*++
Routine Description:
Set the FFS file state.
Arguments:
State - The state to be set.
FfsHeader - Points to the FFS file header
Returns:
None.
--*/
;
BOOLEAN
VerifyFvHeaderChecksum (
IN EFI_FIRMWARE_VOLUME_HEADER *FvHeader
)
/*++
Routine Description:
Verify checksum of the firmware volume header
Arguments:
FvHeader - Points to the firmware volume header to be checked
Returns:
TRUE - Checksum verification passed
FALSE - Checksum verification failed
--*/
;
BOOLEAN
IsValidFfsHeader (
IN UINT8 ErasePolarity,
IN EFI_FFS_FILE_HEADER *FfsHeader,
OUT EFI_FFS_FILE_STATE *FileState
)
/*++
Routine Description:
Check if it's a valid FFS file header
Arguments:
ErasePolarity - Erase polarity attribute of the firmware volume
FfsHeader - Points to the FFS file header to be checked
FileState - FFS file state to be returned
Returns:
TRUE - Valid FFS file header
FALSE - Invalid FFS file header
--*/
;
BOOLEAN
IsValidFfsFile (
IN UINT8 ErasePolarity,
IN EFI_FFS_FILE_HEADER *FfsHeader
)
/*++
Routine Description:
Check if it's a valid FFS file.
Here we are sure that it has a valid FFS file header since we must call IsValidFfsHeader() first.
Arguments:
ErasePolarity - Erase polarity attribute of the firmware volume
FfsHeader - Points to the FFS file to be checked
Returns:
TRUE - Valid FFS file
FALSE - Invalid FFS file
--*/
;
EFI_STATUS
GetFwVolHeader (
IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *Fvb,
OUT EFI_FIRMWARE_VOLUME_HEADER **FwVolHeader
)
/*++
Routine Description:
given the supplied FW_VOL_BLOCK_PROTOCOL, allocate a buffer for output and
copy the volume header into it.
Arguments:
Fvb - The FW_VOL_BLOCK_PROTOCOL instance from which to read the volume
header
FwVolHeader - Pointer to pointer to allocated buffer in which the volume
header is returned.
Returns:
Status code.
--*/
;
EFI_STATUS
FvCheck (
IN OUT FV_DEVICE *FvDevice
)
/*++
Routine Description:
Check if a FV is consistent and allocate cache
Arguments:
FvDevice - pointer to the FvDevice to be checked.
Returns:
EFI_OUT_OF_RESOURCES - Not enough buffer to be allocated.
EFI_SUCCESS - FV is consistent and cache is allocated.
EFI_VOLUME_CORRUPTED - File system is corrupted.
--*/
;
#endif