Curle
d588e232c4
This branch has been dedicated to purely the UEFI bootloader. As such, all other code has been removed. This code can be compiled with Visual Studio, gcc or llvm.
117 lines
2.5 KiB
C
117 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
|
|
|