| #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 |
| |
