AppleDiskImage.h

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#ifndef APPLE_DISK_IMAGE_H
#define APPLE_DISK_IMAGE_H
 
//
// Magic number used to identify the disk image trailer.
//
#define APPLE_DISK_IMAGE_MAGIC  0x6B6F6C79
 
//
// Supported disk image version.
//
#define APPLE_DISK_IMAGE_VERSION  4
 
//
// Checksum length.
//
#define APPLE_DISK_IMAGE_CHECKSUM_SIZE  32
 
//
// Magic number used to identify the disk image block data.
//
#define APPLE_DISK_IMAGE_BLOCK_DATA_MAGIC  0x6D697368
 
//
// Sector size.
//
#define APPLE_DISK_IMAGE_SECTOR_SIZE  512
 
//
// Disk image checksum type.
//
#define APPLE_DISK_IMAGE_CHECKSUM_TYPE_CRC32  0x00000002
 
//
// Disk image chunk type.
//
#define APPLE_DISK_IMAGE_CHUNK_TYPE_ZERO     0x00000000
#define APPLE_DISK_IMAGE_CHUNK_TYPE_RAW      0x00000001
#define APPLE_DISK_IMAGE_CHUNK_TYPE_IGNORE   0x00000002
#define APPLE_DISK_IMAGE_CHUNK_TYPE_ADC      0x80000004
#define APPLE_DISK_IMAGE_CHUNK_TYPE_ZLIB     0x80000005
#define APPLE_DISK_IMAGE_CHUNK_TYPE_BZ2      0x80000006
#define APPLE_DISK_IMAGE_CHUNK_TYPE_COMMENT  0x7FFFFFFE
#define APPLE_DISK_IMAGE_CHUNK_TYPE_LAST     0xFFFFFFFF
 
#pragma pack(push, 1)
 
//
// Disk image checksum.
//
typedef struct APPLE_DISK_IMAGE_CHECKSUM_ {
  UINT32    Type;
  UINT32    Size;
  UINT32    Data[APPLE_DISK_IMAGE_CHECKSUM_SIZE];
} APPLE_DISK_IMAGE_CHECKSUM;
 
//
// Disk image chunk (in XML).
//
typedef struct APPLE_DISK_IMAGE_CHUNK_ {
  UINT32    Type;
  UINT32    Comment;
  UINT64    SectorNumber;
  UINT64    SectorCount;
  UINT64    CompressedOffset;
  UINT64    CompressedLength;
} APPLE_DISK_IMAGE_CHUNK;
 
//
// Disk image block data (in XML).
//
typedef struct APPLE_DISK_IMAGE_BLOCK_DATA_ {
  UINT32                       Signature;
  UINT32                       Version;
  UINT64                       SectorNumber;
  UINT64                       SectorCount;
 
  UINT64                       DataOffset;
  UINT32                       BuffersNeeded;
  UINT32                       BlockDescriptors;
  UINT32                       Reserved[6];
  APPLE_DISK_IMAGE_CHECKSUM    Checksum;
 
  UINT32                       ChunkCount;
  APPLE_DISK_IMAGE_CHUNK       Chunks[];
} APPLE_DISK_IMAGE_BLOCK_DATA;
 
//
// Disk image trailer.
//
typedef struct APPLE_DISK_IMAGE_TRAILER_ {
  UINT32                       Signature;
  UINT32                       Version;
  UINT32                       HeaderSize;
  UINT32                       Flags;
  UINT64                       RunningDataForkOffset;
  UINT64                       DataForkOffset;
  UINT64                       DataForkLength;
  UINT64                       RsrcForkOffset;
  UINT64                       RsrcForkLength;
  UINT32                       SegmentNumber;
  UINT32                       SegmentCount;
  GUID                         SegmentId;
  APPLE_DISK_IMAGE_CHECKSUM    DataForkChecksum;
 
  UINT64                       XmlOffset;
  UINT64                       XmlLength;
  UINT8                        Reserved1[120];
 
  APPLE_DISK_IMAGE_CHECKSUM    Checksum;
  UINT32                       ImageVariant;
  UINT64                       SectorCount;
  UINT32                       Reserved2[3];
} APPLE_DISK_IMAGE_TRAILER;
 
#pragma pack(pop)
 
#endif // APPLE_DISK_IMAGE_H