161 lines
5.9 KiB
C
161 lines
5.9 KiB
C
/*
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File: AppleDiskPartitions.h
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Contains: The Apple disk partition scheme as defined in Inside Macintosh: Volume V.
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Version: QuickTime 7.3
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Copyright: (c) 2007 (c) 2000-2001 by Apple Computer, Inc., all rights reserved
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Bugs?: For bug reports, consult the following page on
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the World Wide Web:
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http://developer.apple.com/bugreporter/
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*/
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#ifndef __APPLEDISKPARTITIONS__
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#define __APPLEDISKPARTITIONS__
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#ifndef __MACTYPES__
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#include <MacTypes.h>
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#endif
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#if PRAGMA_ONCE
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#pragma once
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#endif
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#if PRAGMA_IMPORT
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#pragma import on
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#endif
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#if PRAGMA_STRUCT_ALIGN
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#pragma options align=mac68k
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#elif PRAGMA_STRUCT_PACKPUSH
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#pragma pack(push, 2)
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#elif PRAGMA_STRUCT_PACK
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#pragma pack(2)
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#endif
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/* Block 0 Definitions */
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enum {
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sbSIGWord = 0x4552, /* signature word for Block 0 ('ER') */
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sbMac = 1 /* system type for Mac */
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};
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/* Partition Map Signatures */
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enum {
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pMapSIG = 0x504D, /* partition map signature ('PM') */
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pdSigWord = 0x5453, /* partition map signature ('TS') */
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oldPMSigWord = pdSigWord,
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newPMSigWord = pMapSIG
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};
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/* Driver Descriptor Map */
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struct Block0 {
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UInt16 sbSig; /* unique value for SCSI block 0 */
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UInt16 sbBlkSize; /* block size of device */
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UInt32 sbBlkCount; /* number of blocks on device */
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UInt16 sbDevType; /* device type */
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UInt16 sbDevId; /* device id */
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UInt32 sbData; /* not used */
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UInt16 sbDrvrCount; /* driver descriptor count */
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UInt32 ddBlock; /* 1st driver's starting block */
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UInt16 ddSize; /* size of 1st driver (512-byte blks) */
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UInt16 ddType; /* system type (1 for Mac+) */
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UInt16 ddPad[243]; /* ARRAY[0..242] OF INTEGER; not used */
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};
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typedef struct Block0 Block0;
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/* Driver descriptor */
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struct DDMap {
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UInt32 ddBlock; /* 1st driver's starting block */
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UInt16 ddSize; /* size of 1st driver (512-byte blks) */
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UInt16 ddType; /* system type (1 for Mac+) */
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};
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typedef struct DDMap DDMap;
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/* Constants for the ddType field of the DDMap structure. */
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enum {
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kDriverTypeMacSCSI = 0x0001,
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kDriverTypeMacATA = 0x0701,
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kDriverTypeMacSCSIChained = 0xFFFF,
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kDriverTypeMacATAChained = 0xF8FF
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};
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/* Partition Map Entry */
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struct Partition {
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UInt16 pmSig; /* unique value for map entry blk */
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UInt16 pmSigPad; /* currently unused */
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UInt32 pmMapBlkCnt; /* # of blks in partition map */
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UInt32 pmPyPartStart; /* physical start blk of partition */
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UInt32 pmPartBlkCnt; /* # of blks in this partition */
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UInt8 pmPartName[32]; /* ASCII partition name */
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UInt8 pmParType[32]; /* ASCII partition type */
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UInt32 pmLgDataStart; /* log. # of partition's 1st data blk */
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UInt32 pmDataCnt; /* # of blks in partition's data area */
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UInt32 pmPartStatus; /* bit field for partition status */
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UInt32 pmLgBootStart; /* log. blk of partition's boot code */
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UInt32 pmBootSize; /* number of bytes in boot code */
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UInt32 pmBootAddr; /* memory load address of boot code */
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UInt32 pmBootAddr2; /* currently unused */
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UInt32 pmBootEntry; /* entry point of boot code */
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UInt32 pmBootEntry2; /* currently unused */
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UInt32 pmBootCksum; /* checksum of boot code */
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UInt8 pmProcessor[16]; /* ASCII for the processor type */
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UInt16 pmPad[188]; /* ARRAY[0..187] OF INTEGER; not used */
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};
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typedef struct Partition Partition;
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/* Flags for the pmPartStatus field of the Partition data structure. */
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enum {
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kPartitionAUXIsValid = 0x00000001,
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kPartitionAUXIsAllocated = 0x00000002,
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kPartitionAUXIsInUse = 0x00000004,
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kPartitionAUXIsBootValid = 0x00000008,
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kPartitionAUXIsReadable = 0x00000010,
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kPartitionAUXIsWriteable = 0x00000020,
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kPartitionAUXIsBootCodePositionIndependent = 0x00000040,
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kPartitionIsWriteable = 0x00000020,
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kPartitionIsMountedAtStartup = 0x40000000,
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kPartitionIsStartup = (long)0x80000000,
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kPartitionIsChainCompatible = 0x00000100,
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kPartitionIsRealDeviceDriver = 0x00000200,
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kPartitionCanChainToNext = 0x00000400
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};
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/* Well known driver signatures, stored in the first four byte of pmPad. */
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enum {
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kPatchDriverSignature = FOUR_CHAR_CODE('ptDR'), /* SCSI and ATA[PI] patch driver */
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kSCSIDriverSignature = 0x00010600, /* SCSI hard disk driver */
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kATADriverSignature = FOUR_CHAR_CODE('wiki'), /* ATA hard disk driver */
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kSCSICDDriverSignature = FOUR_CHAR_CODE('CDvr'), /* SCSI CD-ROM driver */
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kATAPIDriverSignature = FOUR_CHAR_CODE('ATPI'), /* ATAPI CD-ROM driver */
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kDriveSetupHFSSignature = FOUR_CHAR_CODE('DSU1') /* Drive Setup HFS partition */
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};
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#if PRAGMA_STRUCT_ALIGN
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#pragma options align=reset
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#elif PRAGMA_STRUCT_PACKPUSH
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#pragma pack(pop)
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#elif PRAGMA_STRUCT_PACK
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#pragma pack()
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#endif
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#ifdef PRAGMA_IMPORT_OFF
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#pragma import off
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#elif PRAGMA_IMPORT
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#pragma import reset
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#endif
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#endif /* __APPLEDISKPARTITIONS__ */
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