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ECMA119.h：源码内容
							
/****************************************************************************************
 *  Copyright (c) 2002 ZORAN Corporation, All Rights Reserved
 *  THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF ZORAN CORPORATION
 *
 *  File: $Workfile: ECMA119.h $             
 *
 * Description:
 * ============
 * 
 * 
 * Log:
 * ====
 * $Revision: 3 $
 * Last Modified by $Author: Leslie $ at $Modtime: 03-01-30 16:34 $ 
 ****************************************************************************************
 * Updates:
 ****************************************************************************************
 * $Log: /SourceCode/I64_Common/I64_Reference/Playcore/FileSys/ISO9660/ECMA119.h $
 * 
 * 3     03-01-30 23:13 Leslie
 * Add new FILEREC struct type
 * 
 * 5     23/04/02 9:30 Nirm
 * - Added dependency in "Config.h".
 * 
 * 4     27/01/02 17:32 Nirm
 * Added support for Short Filenames (to reduce memory consumption).
 * 
 * 3     1/10/02 15:29 Idan
 * Corrected Include-Paths + added a define for memory optimization
 * 
 * 2     12/31/01 19:46 Idan
 * initializing the ISO9660 FS is working.
 * 
 * 1     12/27/01 14:19 Idan
 * 
 ****************************************************************************************/
/////////////////////////////////////////////////////////////////////////////
// ECMA119.h - Definitions and Data-Structures described in ECMA-119 (ISO-9660)
//
// Author:	Nir Milstein
#include "Config.h"		// Global Configuration - do not remove!
#ifndef __ECMA_119_H_
#define __ECMA_119_H_
#include "IncludeSysDefs.h"
// NOTE: All of the structures MUST be packed, since they represent
//		 data-structures resident on the Medium!
#pragma pack(1)
/////////////////////////////////////////////////////////////////////////////
// Constants
#define VOLUME_RECOGNITION_SEQUENCE_START_LSN	16
#define LOGICAL_BLOCK_SIZE	2048
/////////////////////////////////////////////////////////////////////////////
// Recording of Descriptor Fields (ECMA-119 7)
// 16-bit Numerical Value (ECMA-167 7.2)
typedef UINT16 LB16;	// A Little-Endian 16-bit (ECMA-119 7.2.1)
typedef UINT16 MB16;	// A Big-Endian 16-bit (ECMA-119 7.2.2)
// Both-Bytes 16-bit (ECMA-119 7.2.3)
typedef struct BB16_TAG {
	LB16 wLE16;		// Little-Endian
	MB16 wBE16;		// Big-Endian
} BB16;
// 32-bit Numerical Value (ECMA-167 7.3)
typedef UINT32 LB32;	// A Little-Endian 32-bit (ECMA-119 7.3.1)
typedef UINT32 MB32;	// A Big-Endian 32-bit (ECMA-119 7.3.2)
// Both-Bytes 32-bit (ECMA-119 7.3.3)
typedef struct BB32_TAG {
	LB32 dwLE32;	// Little-Endian
	MB32 dwBE32;	// Big-Endian
} BB32;
// Separators (ECMA-119 7.4.3)
#define SEPARATOR1	0x2E
#define SEPARATOR2	0x3B
// File-Identifier (ECMA-119 7.5.1)
#define SHORT_ID_LENGTH	32
/////////////////////////////////////////////////////////////////////////////
// Volume Descriptors (ECMA-119 8)
#define VOLUME_DESC_LEN	2048
#define STANDARD_ID_LEN	5
// Generic Volume Descriptor (ECMA-119 8.1)
struct GenericVolumeStructureDesc {
	UINT8	uVolumeDescType;
	BYTE	aStandardID[STANDARD_ID_LEN];
	UINT8	uVolumeDescVersion;
	BYTE	aReserved[2041];
};
#define STANDARD_ID_CD001	"CD001"
#define DESC_TYPE_BOOT				0
#define DESC_TYPE_PRIMARY_VOLUME	1
#define DESC_TYPE_SUPPL_VOLUME		2
#define DESC_TYPE_VOLUME_PARTITION	3
#define DESC_TYPE_TERMINATOR		255
// Boot Record (ECMA-119 8.2)
struct BootRecordDesc {
	UINT8	uVolumeDescType;
	BYTE	aStandardID[STANDARD_ID_LEN];
	UINT8	uVolumeDescVersion;
	BYTE	sBootSystemID[32];
	BYTE	sBootID[32];
	BYTE	aBootSystemUse[1977];
};
// Volume Descriptor-Set Terminator (ECMA-119 8.3)
#define VolumeDescriptorSetTerminator GenericVolumeStructureDesc
// Root-Directory Record (ECMA-119 8.9.1)
// Record Timestamp (ECMA-119 9.1.5)
typedef struct RecordTimestamp_TAG {
	BYTE uYear;		// Since 1900
	BYTE uMonth;
	BYTE uDay;
	BYTE uHour;
	BYTE uMinute;
	BYTE uSecond;
	BYTE uGMT_Offset;
} RecordTimestamp;
struct ReservedDirRecord {
	UINT8	cbLengthOfDirRecord;
	UINT8	cbExtendedAttrRecordLength;
	BB32	dwExtentLocation;
	BB32	dwDataLength;
	RecordTimestamp rtsRecording;
	UINT8	uFlags;
	UINT8	uFileUnitSize;
	UINT8	uInterleaveGapSize;
	BB16	uVolumeSequenceNumber;
	UINT8	cbLengthOfDirID;
	BYTE	cDirID;
};
// Primary-Volume Descriptor (ECMA-119 8.4)
#define MAX_ID_LENGTH	128
// Volume Timestamp (ECMA-119 8.4.26.1)
typedef struct VolumeTimestamp_TAG {
	BYTE sYear[4];
	BYTE sMonth[2];
	BYTE sDay[2];
	BYTE sHour[2];
	BYTE sMinute[2];
	BYTE sSecond[2];
	BYTE sHundredthsOfSec[2];
	BYTE uGMT_Offset;
} VolumeTimestamp;
struct PrimaryVolumeDesc {
	UINT8 uVolumeDescType;
	BYTE  aStandardID[STANDARD_ID_LEN];
	UINT8 uVolumeDescVersion;
	UINT8 uUnused1;
	BYTE sSystemID[32];
	BYTE sVolumeID[32];
	BYTE aUnused2[8];
	BB32 dwVolumeSpaceSize;
	BYTE aUnused3[32];
	BB16 uVolumeSetSize;
	BB16 uVolumeSequenceNumber;
	BB16 uLogicalBlockSize;
	BB32 dwPathTableSize;
	LB32 dwLocationOfLPathTable;
	LB32 dwLocationOfOptionalLPathTable;
	MB32 dwLoactionOfMPathTable;
	MB32 dwLoactionOfOptionalMPathTable;
	struct ReservedDirRecord rdrRootDir;
	BYTE sVolumeSetID[MAX_ID_LENGTH];
	BYTE sPublisherID[MAX_ID_LENGTH];
	BYTE sDataPreparerID[MAX_ID_LENGTH];
	BYTE sApplicationID[MAX_ID_LENGTH];
	BYTE sCopyrightFileID[37];
	BYTE sAbstractFileID[37];
	BYTE sBibliographicFileID[37];
	VolumeTimestamp vtsCreation;
	VolumeTimestamp vtsModification;
	VolumeTimestamp vtsExpiration;
	VolumeTimestamp vtsEffective;
	UINT8 uFileStructureVersion;
	UINT8 uReserved;
	BYTE aApplicationUse[512];
	BYTE aReserved[653];
};
// Supplementary Volume Descriptor (ECMA-119 8.5)
struct SupplementaryVolumeDesc {
	UINT8 uVolumeDescType;
	BYTE  aStandardID[STANDARD_ID_LEN];
	UINT8 uVolumeDescVersion;
	UINT8 uVolumeFlags;
	BYTE sSystemID[32];
	BYTE sVolumeID[32];
	BYTE aUnused1[8];
	BB32 dwVolumeSpaceSize;
	BYTE aEscapeSequences[32];
	BB16 uVolumeSetSize;
	BB16 uVolumeSequenceNumber;
	BB16 uLogicalBlockSize;
	BB32 dwPathTableSize;
	LB32 dwLocationOfLPathTable;
	LB32 dwLocationOfOptionalLPathTable;
	MB32 dwLoactionOfMPathTable;
	MB32 dwLoactionOfOptionalMPathTable;
	struct ReservedDirRecord rdrRootDir;
	BYTE sVolumeSetID[MAX_ID_LENGTH];
	BYTE sPublisherID[MAX_ID_LENGTH];
	BYTE sDataPreparerID[MAX_ID_LENGTH];
	BYTE sApplicationID[MAX_ID_LENGTH];
	BYTE sCopyrightFileID[37];
	BYTE sAbstractFileID[37];
	BYTE sBibliographicFileID[37];
	VolumeTimestamp vtsCreation;
	VolumeTimestamp vtsModification;
	VolumeTimestamp vtsExpiration;
	VolumeTimestamp vtsEffective;
	UINT8 uFileStructureVersion;
	UINT8 uReserved;
	BYTE aApplicationUse[512];
	BYTE aReserved[653];
};
// Volume Partition Descriptor (ECMA-119 8.6)
struct VolumePartitionDesc {
	UINT8 uVolumeDescType;
	BYTE  aStandardID[STANDARD_ID_LEN];
	UINT8 uVolumeDescVersion;
	UINT8 uUnused;
	BYTE aSystemID[32];
	BYTE aVolumePartitionID[32];
	BB32 dwVolumePartitionLocation;
	BB32 dwVolumePartitionSize;
	BYTE aSystemUse[1960];
};
/////////////////////////////////////////////////////////////////////////////
// File and Directory Descriptors (ECMA-119 9)
// Directory/File Record (ECMA-119 9.1)
struct DirFileRecord {
	UINT8 cbLengthOfDirRecord;
	UINT8 cbExtendedAttrRecordLength;
	BB32  dwExtentLocation;
	BB32  dwDataLength;
	RecordTimestamp rtsRecording;
	UINT8 uFlags;
	UINT8 uFileUnitSize;
	UINT8 uInterleaveGapSize;
	BB16  uVolumeSequenceNumber;
	UINT8 cbLengthOfFileID;
	BYTE sFileID[];
	BYTE aPadding[];
	BYTE aSystemUse[];
};
struct FILEREC
{			 // Total size MUST fit a multiple of DWORDs 
    	UINT32 StartAddr; 	 /* 4 bytes : Location start block address */
   	UINT32 Size;		     /* 4 bytes : File size in Bytes */
    	WCHAR Name[CLIPS_MAX_FILENAME_LEN];	     /* xx bytes : File Name */
	UINT8  FileType;		 /* 1 byte ; index of the file type */
};
#define FILE_FLAGS_HIDDEN			0x01
#define FILE_FLAGS_DIRECTORY		0x02
#define FILE_FLAGS_ASSOCIATED		0x04
#define FILE_FLAGS_RECORD_VALID		0x08
#define FILE_FLAGS_PROTECTION		0x10
#define FILE_FLAGS_MULTI_EXT		0x80
#define FILE_FILEID_CURRENT			"0"
#define FILE_FILEID_PARENT			"1"
// The following two variants of the Dir/File Record are used to access the
// members in a 32-bit Word-aligned manner.
struct DirFileRecord_Aligned {
	BYTE aPadding[2];
	struct DirFileRecord dfrRec;
};
struct ReservedDirRecord_Aligned {
	BYTE aPadding[2];
	struct ReservedDirRecord rdrRec;
};
// DVD Copyright-Management Information of System-Use (DVD-ROM Spec., Part 2: File-System, 3.7.2)
struct DirFileRecordSystemUse_DVD {
	BYTE  ucCGMSInfo;
	UINT8 uDataStructureType;
	BYTE  aProtectionSystemInfo[4];
};
// Path-Table Record (ECMA-119 9.4)
struct PathTableRecord {
	UINT8 cbLengthOfDirID;
	UINT8 cbExtendedAttrRecordLength;
#ifdef MOTOROLA
	MB32  dwExtentLocation;
	MB16  uParentDirNumber;
#else
	LB32  dwExtentLocation;
	LB16  uParentDirNumber;
#endif //MOTOROLA
	BYTE  sDirID[];
	BYTE  aPadding[];
};
// The following variant of the Path-Table Record is used to access the
// members in a 32-bit Word-aligned manner.
struct PathTableRecord_Aligned {
	BYTE aPadding[2];
	struct PathTableRecord ptrRec;
};
// Extended Attribute Record (ECMA-119 9.5)
// Note: This class is not required
/////////////////////////////////////////////////////////////////////////////
// Implementation-Specific auxiliary structures
struct GenericVolumeStructureDesc_Base {
	UINT8	uVolumeDescType;
	BYTE	aStandardID[STANDARD_ID_LEN];
	UINT8	uVolumeDescVersion;
};
#define	PARTIAL_VOLUME_DESC_OFFSET	40
#define DATA_PREPARER_IDENTIFIER_OFFSET    446
struct VolumeDesc_Partial {
	BYTE sVolumeID[32];
	BYTE aUnused2[8];
	BB32 dwVolumeSpaceSize;
	BYTE aEscapeSequences[32];
	BB16 uVolumeSetSize;
	BB16 uVolumeSequenceNumber;
	BB16 uLogicalBlockSize;
	BB32 dwPathTableSize;
	LB32 dwLocationOfLPathTable;
	LB32 dwLocationOfOptionalLPathTable;
	MB32 dwLoactionOfMPathTable;
	MB32 dwLoactionOfOptionalMPathTable;
	struct ReservedDirRecord rdrRootDir;
};
#pragma pack()
#endif //__ECMA_119_H_

						