116 lines
2.5 KiB
C
116 lines
2.5 KiB
C
|
#ifndef _EFI_FS_H
|
||
|
|
#define _EFI_FS_H
|
||
|
|
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Copyright (c) 1998 Intel Corporation
|
||
|
|
|
||
|
|
Module Name:
|
||
|
|
|
||
|
|
efifs.h
|
||
|
|
|
||
|
|
Abstract:
|
||
|
|
|
||
|
|
EFI File System structures
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
Revision History
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* EFI Partition header (normaly starts in LBA 1)
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define EFI_PARTITION_SIGNATURE 0x5053595320494249
|
||
|
|
#define EFI_PARTITION_REVISION 0x00010001
|
||
|
|
#define MIN_EFI_PARTITION_BLOCK_SIZE 512
|
||
|
|
#define EFI_PARTITION_LBA 1
|
||
|
|
|
||
|
|
typedef struct _EFI_PARTITION_HEADER {
|
||
|
|
EFI_TABLE_HEADER Hdr;
|
||
|
|
UINT32 DirectoryAllocationNumber;
|
||
|
|
UINT32 BlockSize;
|
||
|
|
EFI_LBA FirstUsableLba;
|
||
|
|
EFI_LBA LastUsableLba;
|
||
|
|
EFI_LBA UnusableSpace;
|
||
|
|
EFI_LBA FreeSpace;
|
||
|
|
EFI_LBA RootFile;
|
||
|
|
EFI_LBA SecutiryFile;
|
||
|
|
} EFI_PARTITION_HEADER;
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* File header
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define EFI_FILE_HEADER_SIGNATURE 0x454c494620494249
|
||
|
|
#define EFI_FILE_HEADER_REVISION 0x00010000
|
||
|
|
#define EFI_FILE_STRING_SIZE 260
|
||
|
|
|
||
|
|
typedef struct _EFI_FILE_HEADER {
|
||
|
|
EFI_TABLE_HEADER Hdr;
|
||
|
|
UINT32 Class;
|
||
|
|
UINT32 LBALOffset;
|
||
|
|
EFI_LBA Parent;
|
||
|
|
UINT64 FileSize;
|
||
|
|
UINT64 FileAttributes;
|
||
|
|
EFI_TIME FileCreateTime;
|
||
|
|
EFI_TIME FileModificationTime;
|
||
|
|
EFI_GUID VendorGuid;
|
||
|
|
CHAR16 FileString[EFI_FILE_STRING_SIZE];
|
||
|
|
} EFI_FILE_HEADER;
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Return the file's first LBAL which is in the same
|
||
|
|
* logical block as the file header
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define EFI_FILE_LBAL(a) ((EFI_LBAL *) (((CHAR8 *) (a)) + (a)->LBALOffset))
|
||
|
|
|
||
|
|
#define EFI_FILE_CLASS_FREE_SPACE 1
|
||
|
|
#define EFI_FILE_CLASS_EMPTY 2
|
||
|
|
#define EFI_FILE_CLASS_NORMAL 3
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Logical Block Address List - the fundemental block
|
||
|
|
* description structure
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define EFI_LBAL_SIGNATURE 0x4c41424c20494249
|
||
|
|
#define EFI_LBAL_REVISION 0x00010000
|
||
|
|
|
||
|
|
typedef struct _EFI_LBAL {
|
||
|
|
EFI_TABLE_HEADER Hdr;
|
||
|
|
UINT32 Class;
|
||
|
|
EFI_LBA Parent;
|
||
|
|
EFI_LBA Next;
|
||
|
|
UINT32 ArraySize;
|
||
|
|
UINT32 ArrayCount;
|
||
|
|
} EFI_LBAL;
|
||
|
|
|
||
|
|
/* Array size */
|
||
|
|
#define EFI_LBAL_ARRAY_SIZE(lbal,offs,blks) \
|
||
|
|
(((blks) - (offs) - (lbal)->Hdr.HeaderSize) / sizeof(EFI_RL))
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Logical Block run-length
|
||
|
|
*/
|
||
|
|
|
||
|
|
typedef struct {
|
||
|
|
EFI_LBA Start;
|
||
|
|
UINT64 Length;
|
||
|
|
} EFI_RL;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Return the run-length structure from an LBAL header
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define EFI_LBAL_RL(a) ((EFI_RL*) (((CHAR8 *) (a)) + (a)->Hdr.HeaderSize))
|
||
|
|
|
||
|
|
#endif
|