diff options
Diffstat (limited to 'CPP/7zip/Archive/Udf/UdfIn.h')
-rwxr-xr-x | CPP/7zip/Archive/Udf/UdfIn.h | 368 |
1 files changed, 368 insertions, 0 deletions
diff --git a/CPP/7zip/Archive/Udf/UdfIn.h b/CPP/7zip/Archive/Udf/UdfIn.h new file mode 100755 index 00000000..f99991a0 --- /dev/null +++ b/CPP/7zip/Archive/Udf/UdfIn.h @@ -0,0 +1,368 @@ +// Archive/UdfIn.h -- UDF / ECMA-167 + +#ifndef __ARCHIVE_UDF_IN_H +#define __ARCHIVE_UDF_IN_H + +#include "Common/MyCom.h" +#include "Common/IntToString.h" +#include "Common/Buffer.h" +#include "Common/MyString.h" +#include "Common/MyMap.h" + +#include "../../IStream.h" + +namespace NArchive { +namespace NUdf { + +// ---------- ECMA Part 1 ---------- + +// ECMA 1/7.2.12 + +/* +struct CDString32 +{ + Byte Data[32]; + void Parse(const Byte *buf); + // UString GetString() const; +}; +*/ + +struct CDString128 +{ + Byte Data[128]; + void Parse(const Byte *buf); + UString GetString() const; +}; + +struct CDString +{ + CByteBuffer Data; + void Parse(const Byte *p, unsigned size); + UString GetString() const; +}; + + +// ECMA 1/7.3 + +struct CTime +{ + Byte Data[12]; + + unsigned GetType() const { return Data[1] >> 4; } + bool IsLocal() const { return GetType() == 1; } + int GetMinutesOffset() const + { + int t = (Data[0] | ((UInt16)Data[1] << 8)) & 0xFFF; + if ((t >> 11) != 0) + t -= (1 << 12); + return (t > (60 * 24) || t < -(60 * 24)) ? 0 : t; + } + unsigned GetYear() const { return (Data[2] | ((UInt16)Data[3] << 8)); } + void Parse(const Byte *buf); +}; + + +// ECMA 1/7.4 + +/* +struct CRegId +{ + Byte Flags; + char Id[23]; + char Suffix[8]; + + void Parse(const Byte *buf); +}; +*/ + +// ---------- ECMA Part 3: Volume Structure ---------- + +// ECMA 3/10.5 + +struct CPartition +{ + // UInt16 Flags; + UInt16 Number; + // CRegId ContentsId; + // Byte ContentsUse[128]; + // UInt32 AccessType; + + UInt32 Pos; + UInt32 Len; + + // CRegId ImplId; + // Byte ImplUse[128]; + + int VolIndex; + CMap32 Map; + + CPartition(): VolIndex(-1) {} + + // bool IsNsr() const { return (strncmp(ContentsId.Id, "+NSR0", 5) == 0); } + // bool IsAllocated() const { return ((Flags & 1) != 0); } +}; + +struct CLogBlockAddr +{ + UInt32 Pos; + UInt16 PartitionRef; + + void Parse(const Byte *buf); +}; + +enum EShortAllocDescType +{ + SHORT_ALLOC_DESC_TYPE_RecordedAndAllocated = 0, + SHORT_ALLOC_DESC_TYPE_NotRecordedButAllocated = 1, + SHORT_ALLOC_DESC_TYPE_NotRecordedAndNotAllocated = 2, + SHORT_ALLOC_DESC_TYPE_NextExtent = 3 +}; + +struct CShortAllocDesc +{ + UInt32 Len; + UInt32 Pos; + + // 4/14.14.1 + // UInt32 GetLen() const { return Len & 0x3FFFFFFF; } + // UInt32 GetType() const { return Len >> 30; } + // bool IsRecAndAlloc() const { return GetType() == SHORT_ALLOC_DESC_TYPE_RecordedAndAllocated; } + void Parse(const Byte *buf); +}; + +/* +struct CADImpUse +{ + UInt16 Flags; + UInt32 UdfUniqueId; + void Parse(const Byte *buf); +}; +*/ + +struct CLongAllocDesc +{ + UInt32 Len; + CLogBlockAddr Location; + + // Byte ImplUse[6]; + // CADImpUse adImpUse; // UDF + + UInt32 GetLen() const { return Len & 0x3FFFFFFF; } + UInt32 GetType() const { return Len >> 30; } + bool IsRecAndAlloc() const { return GetType() == SHORT_ALLOC_DESC_TYPE_RecordedAndAllocated; } + void Parse(const Byte *buf); +}; + +struct CPartitionMap +{ + Byte Type; + // Byte Len; + + // Type - 1 + // UInt16 VolSeqNumber; + UInt16 PartitionNumber; + + // Byte Data[256]; + + int PartitionIndex; +}; + +enum EIcbFileType +{ + ICB_FILE_TYPE_DIR = 4, + ICB_FILE_TYPE_FILE = 5 +}; + +enum EIcbDescriptorType +{ + ICB_DESC_TYPE_SHORT = 0, + ICB_DESC_TYPE_LONG = 1, + ICB_DESC_TYPE_EXTENDED = 2, + ICB_DESC_TYPE_INLINE = 3 +}; + +struct CIcbTag +{ + // UInt32 PriorDirectNum; + // UInt16 StrategyType; + // UInt16 StrategyParam; + // UInt16 MaxNumOfEntries; + Byte FileType; + // CLogBlockAddr ParentIcb; + UInt16 Flags; + + bool IsDir() const { return FileType == ICB_FILE_TYPE_DIR; } + int GetDescriptorType() const { return Flags & 3; } + void Parse(const Byte *p); +}; + +// const Byte FILEID_CHARACS_Existance = (1 << 0); +const Byte FILEID_CHARACS_Parent = (1 << 3); + +struct CFile +{ + // UInt16 FileVersion; + // Byte FileCharacteristics; + // CByteBuffer ImplUse; + CDString Id; + + CFile(): /* FileVersion(0), FileCharacteristics(0), */ ItemIndex(-1) {} + int ItemIndex; + UString GetName() const { return Id.GetString(); } +}; + +struct CMyExtent +{ + UInt32 Pos; + UInt32 Len; + int PartitionRef; + + UInt32 GetLen() const { return Len & 0x3FFFFFFF; } + UInt32 GetType() const { return Len >> 30; } + bool IsRecAndAlloc() const { return GetType() == SHORT_ALLOC_DESC_TYPE_RecordedAndAllocated; } +}; + +struct CItem +{ + CIcbTag IcbTag; + + // UInt32 Uid; + // UInt32 Gid; + // UInt32 Permissions; + // UInt16 FileLinkCount; + // Byte RecordFormat; + // Byte RecordDisplayAttr; + // UInt32 RecordLen; + UInt64 Size; + UInt64 NumLogBlockRecorded; + CTime ATime; + CTime MTime; + // CTime AttrtTime; + // UInt32 CheckPoint; + // CLongAllocDesc ExtendedAttrIcb; + // CRegId ImplId; + // UInt64 UniqueId; + + CRecordVector<CMyExtent> Extents; + CRecordVector<int> SubFiles; + + void Parse(const Byte *buf); + + bool IsRecAndAlloc() const + { + for (int i = 0; i < Extents.Size(); i++) + if (!Extents[i].IsRecAndAlloc()) + return false; + return true; + } + + UInt64 GetChunksSumSize() const + { + UInt64 size = 0; + for (int i = 0; i < Extents.Size(); i++) + size += Extents[i].GetLen(); + return size; + } + + bool CheckChunkSizes() const { return GetChunksSumSize() == Size; } + + bool IsDir() const { return IcbTag.IsDir(); } +}; + +struct CRef +{ + int Parent; + int FileIndex; +}; + + +// ECMA 4 / 14.1 +struct CFileSet +{ + CTime RecodringTime; + // UInt16 InterchangeLevel; + // UInt16 MaxInterchangeLevel; + // UInt32 FileSetNumber; + // UInt32 FileSetDescNumber; + // CDString32 Id; + // CDString32 CopyrightId; + // CDString32 AbstractId; + + CLongAllocDesc RootDirICB; + // CRegId DomainId; + // CLongAllocDesc SystemStreamDirICB; + + CRecordVector<CRef> Refs; +}; + + +// ECMA 3/10.6 + +struct CLogVol +{ + CDString128 Id; + UInt32 BlockSize; + // CRegId DomainId; + + // Byte ContentsUse[16]; + CLongAllocDesc FileSetLocation; // UDF + + // CRegId ImplId; + // Byte ImplUse[128]; + + CObjectVector<CPartitionMap> PartitionMaps; + CObjectVector<CFileSet> FileSets; + + UString GetName() const { return Id.GetString(); } +}; + +struct CProgressVirt +{ + virtual HRESULT SetTotal(UInt64 numBytes) PURE; + virtual HRESULT SetCompleted(UInt64 numFiles, UInt64 numBytes) PURE; + virtual HRESULT SetCompleted() PURE; +}; + +class CInArchive +{ + CMyComPtr<IInStream> _stream; + CProgressVirt *_progress; + + HRESULT Read(int volIndex, int partitionRef, UInt32 blockPos, UInt32 len, Byte *buf); + HRESULT Read(int volIndex, const CLongAllocDesc &lad, Byte *buf); + HRESULT ReadFromFile(int volIndex, const CItem &item, CByteBuffer &buf); + + HRESULT ReadFileItem(int volIndex, int fsIndex, const CLongAllocDesc &lad, int numRecurseAllowed); + HRESULT ReadItem(int volIndex, int fsIndex, const CLongAllocDesc &lad, int numRecurseAllowed); + + HRESULT Open2(); + HRESULT FillRefs(CFileSet &fs, int fileIndex, int parent, int numRecurseAllowed); + + UInt64 _processedProgressBytes; + + UInt64 _fileNameLengthTotal; + int _numRefs; + UInt32 _numExtents; + bool CheckExtent(int volIndex, int partitionRef, UInt32 blockPos, UInt32 len) const; +public: + HRESULT Open(IInStream *inStream, CProgressVirt *progress); + void Clear(); + + CObjectVector<CPartition> Partitions; + CObjectVector<CLogVol> LogVols; + + CObjectVector<CItem> Items; + CObjectVector<CFile> Files; + + int SecLogSize; + + UString GetComment() const; + UString GetItemPath(int volIndex, int fsIndex, int refIndex, + bool showVolName, bool showFsName) const; + + bool CheckItemExtents(int volIndex, const CItem &item) const; +}; + +}} + +#endif |