/* $NetBSD: efifs.h,v 1.1.1.1 2014/04/01 16:16:07 jakllsch Exp $ */ #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