mirror of https://github.com/lianthony/NT4.0
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
210 lines
3.9 KiB
210 lines
3.9 KiB
/*++
|
|
|
|
Copyright (c) 1996 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
EtfsBoot.h
|
|
|
|
Abstract:
|
|
|
|
This module defines globally used procedure and data structures used
|
|
by Etfs boot.
|
|
|
|
Author:
|
|
|
|
Steve Collins [stevec] 25-Nov-1995
|
|
|
|
Revision History:
|
|
|
|
--*/
|
|
|
|
#if defined(ELTORITO)
|
|
#ifndef _ETFSBOOT_
|
|
#define _ETFSBOOT_
|
|
|
|
//
|
|
// The following constants are values from the disk.
|
|
//
|
|
|
|
#define ELTORITO_VD_SECTOR (16)
|
|
#define ELTORITO_BRVD_SECTOR (17)
|
|
#define ET_SYS_ID "EL TORITO SPECIFICATION"
|
|
#define BRVD_VERSION_1 (1)
|
|
#define VD_BOOTREC (0)
|
|
|
|
typedef struct _RAW_ET_BRVD {
|
|
|
|
UCHAR BrIndicator; // boot record indicator = 0
|
|
UCHAR StandardId[5]; // volume structure standard id = "CD001"
|
|
UCHAR Version; // descriptor version number = 1
|
|
UCHAR BootSysId[32]; // boot system identifier = "EL TORITO SPECIFICATION"
|
|
UCHAR Unused1[32]; // unused = 0
|
|
ULONG BootCatPtr; // absolute pointer to first sector of boot catalog
|
|
UCHAR Reserved[1973]; // unused = 0
|
|
|
|
} RAW_ET_BRVD;
|
|
typedef RAW_ET_BRVD *PRAW_ET_BRVD;
|
|
|
|
|
|
//
|
|
// The following macros are used to recover data from the different
|
|
// volume descriptor structures.
|
|
//
|
|
|
|
#define RBRVD_BR_IND( r ) ( r->BrIndicator )
|
|
#define RBRVD_STD_ID( r ) ( r->StandardId )
|
|
#define RBRVD_VERSION( r ) ( r->Version )
|
|
#define RBRVD_SYS_ID( r ) ( r->BootSysId )
|
|
|
|
typedef struct _ETFS_STRUCTURE_CONTEXT {
|
|
|
|
//
|
|
// The following field is the sector offset of the start of
|
|
// directory data.
|
|
//
|
|
|
|
ULONG RootDirSectorOffset;
|
|
|
|
//
|
|
// The following field is the start of the sector containing the
|
|
// this directory.
|
|
//
|
|
|
|
ULONG RootDirDiskOffset;
|
|
|
|
//
|
|
// The following field is the size of the directory.
|
|
//
|
|
|
|
ULONG RootDirSize;
|
|
|
|
//
|
|
// The following field is the sector offset of the start of
|
|
// directory data.
|
|
//
|
|
|
|
ULONG DirSectorOffset;
|
|
|
|
//
|
|
// The following field is the start of the sector containing the
|
|
// this directory.
|
|
//
|
|
|
|
ULONG DirDiskOffset;
|
|
|
|
//
|
|
// The following field is the size of the directory.
|
|
//
|
|
|
|
ULONG DirSize;
|
|
|
|
//
|
|
// The following field indicates the size of the disk Logical Blocks.
|
|
//
|
|
|
|
ULONG LbnBlockSize;
|
|
|
|
//
|
|
// The following field indicates the number of logical blocks on the
|
|
// disk.
|
|
//
|
|
|
|
ULONG LogicalBlockCount;
|
|
|
|
//
|
|
// The following indicates whether this is an Iso or Hsg disk.
|
|
//
|
|
|
|
BOOLEAN IsIsoVol;
|
|
|
|
} ETFS_STRUCTURE_CONTEXT, *PETFS_STRUCTURE_CONTEXT;
|
|
|
|
//
|
|
// Define Etfs file context structure.
|
|
//
|
|
|
|
typedef struct _ETFS_FILE_CONTEXT {
|
|
|
|
//
|
|
// The following is the disk offset of the read position for the
|
|
// start of the file. This may include the above number of non-file
|
|
// bytes.
|
|
//
|
|
|
|
ULONG DiskOffset;
|
|
|
|
//
|
|
// The following field contains the size of the file, in bytes.
|
|
//
|
|
|
|
ULONG FileSize;
|
|
|
|
//
|
|
// The following field indicates whether this is a directory.
|
|
//
|
|
|
|
BOOLEAN IsDirectory;
|
|
|
|
} ETFS_FILE_CONTEXT, *PETFS_FILE_CONTEXT;
|
|
|
|
//
|
|
// Define file I/O prototypes.
|
|
//
|
|
|
|
ARC_STATUS
|
|
EtfsClose (
|
|
IN ULONG FileId
|
|
);
|
|
|
|
ARC_STATUS
|
|
EtfsOpen (
|
|
IN PCHAR OpenPath,
|
|
IN OPEN_MODE OpenMode,
|
|
OUT PULONG FileId
|
|
);
|
|
|
|
ARC_STATUS
|
|
EtfsRead (
|
|
IN ULONG FileId,
|
|
OUT PVOID Buffer,
|
|
IN ULONG Length,
|
|
OUT PULONG Count
|
|
);
|
|
|
|
ARC_STATUS
|
|
EtfsSeek (
|
|
IN ULONG FileId,
|
|
IN PLARGE_INTEGER Offset,
|
|
IN SEEK_MODE SeekMode
|
|
);
|
|
|
|
ARC_STATUS
|
|
EtfsWrite (
|
|
IN ULONG FileId,
|
|
IN PVOID Buffer,
|
|
IN ULONG Length,
|
|
OUT PULONG Count
|
|
);
|
|
|
|
ARC_STATUS
|
|
EtfsGetFileInformation (
|
|
IN ULONG FileId,
|
|
OUT PFILE_INFORMATION Buffer
|
|
);
|
|
|
|
ARC_STATUS
|
|
EtfsSetFileInformation (
|
|
IN ULONG FileId,
|
|
IN ULONG AttributeFlags,
|
|
IN ULONG AttributeMask
|
|
);
|
|
|
|
ARC_STATUS
|
|
EtfsInitialize(
|
|
VOID
|
|
);
|
|
|
|
#endif // _ETFSBOOT_
|
|
#endif
|
|
|