aaru-dps/imhex-patterns
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Add DDT2 to AaruFormat.

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Natalia Portillo
2025-08-03 20:45:45 +01:00
parent 4443bf3421
commit a9325df187
1 changed files with 68 additions and 15 deletions
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83
aaruformat.hexpat
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@@ -721,7 +721,7 @@ enum BlockType : u32
{
DataBlock = 0x4B4C4244,
DeDuplicationTable = 0x2A544444,
DeDuplicationTable2 = 0x32454444,
DeDuplicationTable2 = 0x32544444,
Index = 0x58444E49,
Index2 = 0x32584449,
Index3 = 0x33584449,
@@ -812,6 +812,58 @@ struct DdtHeader
u8 data[cmpLength];
};
struct DdtHeader2
{
/**Identifier, <see cref="BlockType.DeDuplicationTable" /> */
BlockType identifier;
/**Type of data pointed by this DDT */
DataType type;
/**Compression algorithm used to compress the DDT */
CompressionType compression;
/**How many levels of subtables are present */
u8 levels;
/**Which level this table belongs to */
u8 tableLevel;
/**Pointer to absolute byte offset in file where the previous level table is located */
u64 previousLevelOffset;
/**Negative displacement of LBAs */
u16 negative;
/**Number of blocks in media */
u64 blocks;
/**Positive overflow displacement of LBAs */
u16 overflow;
/**First LBA contained in this table */
u64 start;
/**Block alignment boundaries */
u8 blockAlignmentShift;
/**Data shift */
u8 dataShift;
/**Table shift */
u8 tableShift;
/**Size type */
u8 sizeType;
/**Entries in this table */
u64 entries;
/**Compressed length for the DDT */
type::Size<u64> cmpLength;
/**Uncompressed length for the DDT */
type::Size<u64> length;
/**CRC64-ECMA of the compressed DDT */
type::Hex<u64> cmpCrc64;
/**CRC64-ECMA of the uncompressed DDT */
type::Hex<u64> crc64;
// TODO: Decompress ?
if(compression == CompressionType::None)
if(sizeType == 0)
u16 ddt[entries];
else
u32 ddt[entries];
else
u8 data[cmpLength];
};
struct BlockHeader
{
BlockType identifier;
@@ -1067,20 +1119,21 @@ struct IndexEntry
match(blockType)
{
(BlockType::DataBlock): BlockHeader *dataBlock : u64 [[inline]];
(BlockType::DeDuplicationTable): DdtHeader *deduplicationTable : u64 [[inline]];
(BlockType::GeometryBlock): GeometryBlock *geometry : u64 [[inline]];
(BlockType::MetadataBlock): MetadataBlock *metadata : u64 [[inline]];
(BlockType::TracksBlock): TracksHeader *tracks : u64 [[inline]];
(BlockType::CicmBlock): CicmMetadataBlock *metadata : u64 [[inline]];
(BlockType::JsonMetadataBlock): JsonMetadataBlock *metadata : u64 [[inline]];
(BlockType::ChecksumBlock): ChecksumHeader *checksums : u64 [[inline]];
(BlockType::DumpHardwareBlock): DumpHardwareHeader *dumpHardware : u64 [[inline]];
(BlockType::TapeFileBlock): TapeFileHeader *tapeFiles : u64 [[inline]];
(BlockType::TapePartitionBlock): TapePartitionHeader *tapePartitions : u64 [[inline]];
(BlockType::CompactDiscIndexesBlock): CompactDiscIndexesBlock *compactDiscIndexes : u64 [[inline]];
(BlockType::Index3): Index *index : u64 [[inline]];
(_): BlockType *offset : u64 [[inline]];
(BlockType::DataBlock): BlockHeader *dataBlock : u64 [[inline]];
(BlockType::DeDuplicationTable): DdtHeader *deduplicationTable : u64 [[inline]];
(BlockType::DeDuplicationTable2): DdtHeader2 *deduplicationTable2 : u64 [[inline]];
(BlockType::GeometryBlock): GeometryBlock *geometry : u64 [[inline]];
(BlockType::MetadataBlock): MetadataBlock *metadata : u64 [[inline]];
(BlockType::TracksBlock): TracksHeader *tracks : u64 [[inline]];
(BlockType::CicmBlock): CicmMetadataBlock *metadata : u64 [[inline]];
(BlockType::JsonMetadataBlock): JsonMetadataBlock *metadata : u64 [[inline]];
(BlockType::ChecksumBlock): ChecksumHeader *checksums : u64 [[inline]];
(BlockType::DumpHardwareBlock): DumpHardwareHeader *dumpHardware : u64 [[inline]];
(BlockType::TapeFileBlock): TapeFileHeader *tapeFiles : u64 [[inline]];
(BlockType::TapePartitionBlock): TapePartitionHeader *tapePartitions : u64 [[inline]];
(BlockType::CompactDiscIndexesBlock): CompactDiscIndexesBlock *compactDiscIndexes : u64 [[inline]];
(BlockType::Index3): Index *index : u64 [[inline]];
(_): BlockType *offset : u64 [[inline]];
}
};