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// Archive/WimIn.h
#ifndef __ARCHIVE_WIM_IN_H
#define __ARCHIVE_WIM_IN_H
#include "../../../../C/Alloc.h"
#include "../../../Common/MyBuffer.h"
#include "../../../Common/MyXml.h"
#include "../../../Windows/PropVariant.h"
#include "../../Compress/CopyCoder.h"
#include "../../Compress/LzmsDecoder.h"
#include "../../Compress/LzxDecoder.h"
#include "../IArchive.h"
namespace NArchive {
namespace NWim {
/*
WIM versions:
hexVer : headerSize : ver
: 1.07.01 - 1.08.01 : Longhorn.4001-4015 - another header, no signature, CAB compression
10900 : 60 : 1.09 : Longhorn.4029-4039 (2003)
10A00 : 60 : 1.10 : Longhorn.4083 (2004) image starting from 1
10B00 : ?? : 1.11 : ??
10C00 : 74 : 1.12 : Longhorn.4093 - VistaBeta1.5112 (2005) - (Multi-Part, SHA1)
10D00 : D0 : 1.13 : VistaBeta2 - Win10, (NumImages, BootIndex, IntegrityResource)
00E00 : D0 : 0.14 : LZMS, solid, esd, dism
*/
const unsigned kDirRecordSizeOld = 62;
const unsigned kDirRecordSize = 102;
/*
There is error in WIM specification about dwReparseTag, dwReparseReserved and liHardLink fields.
Correct DIRENTRY structure:
{
hex offset
0 UInt64 Len;
8 UInt32 Attrib;
C UInt32 SecurityId;
10 UInt64 SubdirOffset; // = 0 for files
18 UInt64 unused1; // = 0?
20 UInt64 unused2; // = 0?
28 UInt64 CTime;
30 UInt64 ATime;
38 UInt64 MTime;
40 Byte Sha1[20];
54 UInt32 Unknown1; // is it 0 always?
union
{
58 UInt64 NtNodeId;
{
58 UInt32 ReparseTag;
5C UInt32 ReparseFlags; // is it 0 always? Check with new imagex.
}
}
60 UInt16 Streams;
62 UInt16 ShortNameLen;
64 UInt16 FileNameLen;
66 UInt16 Name[];
UInt16 ShortName[];
}
// DIRENTRY for WIM_VERSION <= 1.10
DIRENTRY_OLD structure:
{
hex offset
0 UInt64 Len;
8 UInt32 Attrib;
C UInt32 SecurityId;
union
{
10 UInt64 SubdirOffset; //
10 UInt32 OldWimFileId; // used for files in old WIMs
14 UInt32 OldWimFileId_Reserved; // = 0
}
18 UInt64 CTime;
20 UInt64 ATime;
28 UInt64 MTime;
30 UInt64 Unknown; // NtNodeId ?
38 UInt16 Streams;
3A UInt16 ShortNameLen;
3C UInt16 FileNameLen;
3E UInt16 FileName[];
UInt16 ShortName[];
}
ALT_STREAM structure:
{
hex offset
0 UInt64 Len;
8 UInt64 Unused;
10 Byte Sha1[20];
24 UInt16 FileNameLen;
26 UInt16 FileName[];
}
ALT_STREAM_OLD structure:
{
hex offset
0 UInt64 Len;
8 UInt64 StreamId; // 32-bit value
10 UInt16 FileNameLen;
12 UInt16 FileName[];
}
If item is file (not Directory) and there are alternative streams,
there is additional ALT_STREAM item of main "unnamed" stream in Streams array.
*/
namespace NResourceFlags
{
// const Byte kFree = 1 << 0;
const Byte kMetadata = 1 << 1;
const Byte kCompressed = 1 << 2;
// const Byte kSpanned = 1 << 3;
const Byte kSolid = 1 << 4;
}
const UInt64 k_SolidBig_Resource_Marker = (UInt64)1 << 32;
struct CResource
{
UInt64 PackSize;
UInt64 Offset;
UInt64 UnpackSize;
Byte Flags;
bool KeepSolid;
int SolidIndex;
void Clear()
{
PackSize = 0;
Offset = 0;
UnpackSize = 0;
Flags = 0;
KeepSolid = false;
SolidIndex = -1;
}
UInt64 GetEndLimit() const { return Offset + PackSize; }
void Parse(const Byte *p);
void ParseAndUpdatePhySize(const Byte *p, UInt64 &phySize)
{
Parse(p);
UInt64 v = GetEndLimit();
if (phySize < v)
phySize = v;
}
void WriteTo(Byte *p) const;
bool IsMetadata() const { return (Flags & NResourceFlags::kMetadata) != 0; }
bool IsCompressed() const { return (Flags & NResourceFlags::kCompressed) != 0; }
bool IsSolid() const { return (Flags & NResourceFlags::kSolid) != 0; }
bool IsSolidBig() const { return IsSolid() && UnpackSize == k_SolidBig_Resource_Marker; }
bool IsSolidSmall() const { return IsSolid() && UnpackSize == 0; }
bool IsEmpty() const { return (UnpackSize == 0); }
};
struct CSolid
{
unsigned StreamIndex;
// unsigned NumRefs;
int FirstSmallStream;
UInt64 SolidOffset;
UInt64 UnpackSize;
int Method;
int ChunkSizeBits;
UInt64 HeadersSize;
// size_t NumChunks;
CObjArray<UInt64> Chunks; // [NumChunks + 1] (start offset)
UInt64 GetChunkPackSize(size_t chunkIndex) const { return Chunks[chunkIndex + 1] - Chunks[chunkIndex]; }
CSolid():
FirstSmallStream(-1),
// NumRefs(0),
Method(-1)
{}
};
namespace NHeaderFlags
{
const UInt32 kCompression = 1 << 1;
const UInt32 kReadOnly = 1 << 2;
const UInt32 kSpanned = 1 << 3;
const UInt32 kResourceOnly = 1 << 4;
const UInt32 kMetadataOnly = 1 << 5;
const UInt32 kWriteInProgress = 1 << 6;
const UInt32 kReparsePointFixup = 1 << 7;
const UInt32 kXPRESS = (UInt32)1 << 17;
const UInt32 kLZX = (UInt32)1 << 18;
const UInt32 kLZMS = (UInt32)1 << 19;
const UInt32 kXPRESS2 = (UInt32)1 << 21; // XPRESS with nonstandard chunk size ?
const UInt32 kMethodMask = 0xFFFE0000;
}
namespace NMethod
{
const UInt32 kXPRESS = 1;
const UInt32 kLZX = 2;
const UInt32 kLZMS = 3;
}
const UInt32 k_Version_NonSolid = 0x10D00;
const UInt32 k_Version_Solid = 0xE00;
const unsigned kHeaderSizeMax = 0xD0;
const unsigned kSignatureSize = 8;
extern const Byte kSignature[kSignatureSize];
const unsigned kChunkSizeBits = 15;
const UInt32 kChunkSize = (UInt32)1 << kChunkSizeBits;
struct CHeader
{
UInt32 Version;
UInt32 Flags;
UInt32 ChunkSize;
unsigned ChunkSizeBits;
Byte Guid[16];
UInt16 PartNumber;
UInt16 NumParts;
UInt32 NumImages;
UInt32 BootIndex;
bool _IsOldVersion; // 1.10-
bool _IsNewVersion; // 1.13+ or 0.14
CResource OffsetResource;
CResource XmlResource;
CResource MetadataResource;
CResource IntegrityResource;
void SetDefaultFields(bool useLZX);
void WriteTo(Byte *p) const;
HRESULT Parse(const Byte *p, UInt64 &phySize);
bool IsCompressed() const { return (Flags & NHeaderFlags::kCompression) != 0; }
bool IsSupported() const
{
return (!IsCompressed()
|| (Flags & NHeaderFlags::kLZX) != 0
|| (Flags & NHeaderFlags::kXPRESS) != 0
|| (Flags & NHeaderFlags::kLZMS) != 0
|| (Flags & NHeaderFlags::kXPRESS2) != 0);
}
unsigned GetMethod() const
{
if (!IsCompressed())
return 0;
UInt32 mask = (Flags & NHeaderFlags::kMethodMask);
if (mask == 0) return 0;
if (mask == NHeaderFlags::kXPRESS) return NMethod::kXPRESS;
if (mask == NHeaderFlags::kLZX) return NMethod::kLZX;
if (mask == NHeaderFlags::kLZMS) return NMethod::kLZMS;
if (mask == NHeaderFlags::kXPRESS2) return NMethod::kXPRESS;
return mask;
}
bool IsOldVersion() const { return _IsOldVersion; }
bool IsNewVersion() const { return _IsNewVersion; }
bool IsSolidVersion() const { return (Version == k_Version_Solid); }
bool AreFromOnArchive(const CHeader &h)
{
return (memcmp(Guid, h.Guid, sizeof(Guid)) == 0) && (h.NumParts == NumParts);
}
};
const unsigned kHashSize = 20;
inline bool IsEmptySha(const Byte *data)
{
for (unsigned i = 0; i < kHashSize; i++)
if (data[i] != 0)
return false;
return true;
}
const unsigned kStreamInfoSize = 24 + 2 + 4 + kHashSize;
struct CStreamInfo
{
CResource Resource;
UInt16 PartNumber; // for NEW WIM format, we set it to 1 for OLD WIM format
UInt32 RefCount;
UInt32 Id; // for OLD WIM format
Byte Hash[kHashSize];
bool IsEmptyHash() const { return IsEmptySha(Hash); }
void WriteTo(Byte *p) const;
};
struct CItem
{
size_t Offset;
int IndexInSorted;
int StreamIndex;
int Parent;
int ImageIndex; // -1 means that file is unreferenced in Images (deleted item?)
bool IsDir;
bool IsAltStream;
bool HasMetadata() const { return ImageIndex >= 0; }
CItem():
IndexInSorted(-1),
StreamIndex(-1),
Parent(-1),
IsDir(false),
IsAltStream(false)
{}
};
struct CImage
{
CByteBuffer Meta;
CRecordVector<UInt32> SecurOffsets;
unsigned StartItem;
unsigned NumItems;
unsigned NumEmptyRootItems;
int VirtualRootIndex; // index in CDatabase::VirtualRoots[]
UString RootName;
CByteBuffer RootNameBuf;
CImage(): VirtualRootIndex(-1) {}
};
struct CImageInfo
{
bool CTimeDefined;
bool MTimeDefined;
bool NameDefined;
bool IndexDefined;
FILETIME CTime;
FILETIME MTime;
UString Name;
UInt64 DirCount;
UInt64 FileCount;
UInt32 Index;
int ItemIndexInXml;
UInt64 GetTotalFilesAndDirs() const { return DirCount + FileCount; }
CImageInfo(): CTimeDefined(false), MTimeDefined(false), NameDefined(false),
IndexDefined(false), ItemIndexInXml(-1) {}
void Parse(const CXmlItem &item);
};
struct CWimXml
{
CByteBuffer Data;
CXml Xml;
UInt16 VolIndex;
CObjectVector<CImageInfo> Images;
UString FileName;
bool IsEncrypted;
UInt64 GetTotalFilesAndDirs() const
{
UInt64 sum = 0;
FOR_VECTOR (i, Images)
sum += Images[i].GetTotalFilesAndDirs();
return sum;
}
void ToUnicode(UString &s);
bool Parse();
CWimXml(): IsEncrypted(false) {}
};
struct CVolume
{
CHeader Header;
CMyComPtr<IInStream> Stream;
};
class CDatabase
{
Byte *DirData;
size_t DirSize;
size_t DirProcessed;
size_t DirStartOffset;
IArchiveOpenCallback *OpenCallback;
HRESULT ParseDirItem(size_t pos, int parent);
HRESULT ParseImageDirs(CByteBuffer &buf, int parent);
public:
CRecordVector<CStreamInfo> DataStreams;
CRecordVector<CStreamInfo> MetaStreams;
CObjectVector<CSolid> Solids;
CRecordVector<CItem> Items;
CObjectVector<CByteBuffer> ReparseItems;
CIntVector ItemToReparse; // from index_in_Items to index_in_ReparseItems
// -1 means no reparse;
CObjectVector<CImage> Images;
bool IsOldVersion9;
bool IsOldVersion;
bool ThereAreDeletedStreams;
bool ThereAreAltStreams;
bool RefCountError;
bool HeadersError;
bool GetStartImageIndex() const { return IsOldVersion9 ? 0 : 1; }
unsigned GetDirAlignMask() const { return IsOldVersion9 ? 3 : 7; }
// User Items can contain all images or just one image from all.
CUIntVector SortedItems;
int IndexOfUserImage; // -1 : if more than one images was filled to Sorted Items
unsigned NumExcludededItems;
int ExludedItem; // -1 : if there are no exclude items
CUIntVector VirtualRoots; // we use them for old 1.10 WIM archives
bool ThereIsError() const { return RefCountError; }
unsigned GetNumUserItemsInImage(unsigned imageIndex) const
{
if (IndexOfUserImage >= 0 && imageIndex != (unsigned)IndexOfUserImage)
return 0;
if (imageIndex >= Images.Size())
return 0;
return Images[imageIndex].NumItems - NumExcludededItems;
}
bool ItemHasStream(const CItem &item) const;
UInt64 Get_UnpackSize_of_Resource(const CResource &r) const
{
if (!r.IsSolid())
return r.UnpackSize;
if (r.IsSolidSmall())
return r.PackSize;
if (r.IsSolidBig() && r.SolidIndex >= 0)
return Solids[(unsigned)r.SolidIndex].UnpackSize;
return 0;
}
UInt64 Get_PackSize_of_Resource(unsigned streamIndex) const
{
const CResource &r = DataStreams[streamIndex].Resource;
if (!r.IsSolidSmall())
return r.PackSize;
if (r.SolidIndex >= 0)
{
const CSolid &ss = Solids[(unsigned)r.SolidIndex];
if (ss.FirstSmallStream == (int)streamIndex)
return DataStreams[ss.StreamIndex].Resource.PackSize;
}
return 0;
}
UInt64 GetUnpackSize() const
{
UInt64 res = 0;
FOR_VECTOR (i, DataStreams)
res += DataStreams[i].Resource.UnpackSize;
return res;
}
UInt64 GetPackSize() const
{
UInt64 res = 0;
FOR_VECTOR (i, DataStreams)
res += DataStreams[i].Resource.PackSize;
return res;
}
void Clear()
{
DataStreams.Clear();
MetaStreams.Clear();
Solids.Clear();
Items.Clear();
ReparseItems.Clear();
ItemToReparse.Clear();
SortedItems.Clear();
Images.Clear();
VirtualRoots.Clear();
IsOldVersion = false;
ThereAreDeletedStreams = false;
ThereAreAltStreams = false;
RefCountError = false;
HeadersError = false;
}
CDatabase(): RefCountError(false) {}
void GetShortName(unsigned index, NWindows::NCOM::CPropVariant &res) const;
void GetItemName(unsigned index1, NWindows::NCOM::CPropVariant &res) const;
void GetItemPath(unsigned index, bool showImageNumber, NWindows::NCOM::CPropVariant &res) const;
HRESULT OpenXml(IInStream *inStream, const CHeader &h, CByteBuffer &xml);
HRESULT Open(IInStream *inStream, const CHeader &h, unsigned numItemsReserve, IArchiveOpenCallback *openCallback);
HRESULT FillAndCheck(const CObjectVector<CVolume> &volumes);
/*
imageIndex showImageNumber NumImages
* true * Show Image_Number
-1 * >1 Show Image_Number
-1 false 1 Don't show Image_Number
N false * Don't show Image_Number
*/
HRESULT GenerateSortedItems(int imageIndex, bool showImageNumber);
HRESULT ExtractReparseStreams(const CObjectVector<CVolume> &volumes, IArchiveOpenCallback *openCallback);
};
HRESULT ReadHeader(IInStream *inStream, CHeader &header, UInt64 &phySize);
struct CMidBuf
{
Byte *Data;
size_t _size;
CMidBuf(): Data(NULL), _size(0) {}
void EnsureCapacity(size_t size)
{
if (size > _size)
{
::MidFree(Data);
_size = 0;
Data = (Byte *)::MidAlloc(size);
if (Data)
_size = size;
}
}
~CMidBuf() { ::MidFree(Data); }
};
class CUnpacker
{
NCompress::CCopyCoder *copyCoderSpec;
CMyComPtr<ICompressCoder> copyCoder;
NCompress::NLzx::CDecoder *lzxDecoderSpec;
CMyComPtr<IUnknown> lzxDecoder;
NCompress::NLzms::CDecoder *lzmsDecoder;
CByteBuffer sizesBuf;
CMidBuf packBuf;
CMidBuf unpackBuf;
// solid resource
int _solidIndex;
size_t _unpackedChunkIndex;
HRESULT UnpackChunk(
ISequentialInStream *inStream,
unsigned method, unsigned chunkSizeBits,
size_t inSize, size_t outSize,
ISequentialOutStream *outStream);
HRESULT Unpack2(
IInStream *inStream,
const CResource &res,
const CHeader &header,
const CDatabase *db,
ISequentialOutStream *outStream,
ICompressProgressInfo *progress);
public:
UInt64 TotalPacked;
CUnpacker():
lzmsDecoder(NULL),
_solidIndex(-1),
_unpackedChunkIndex(0),
TotalPacked(0)
{}
~CUnpacker();
HRESULT Unpack(
IInStream *inStream,
const CResource &res,
const CHeader &header,
const CDatabase *db,
ISequentialOutStream *outStream,
ICompressProgressInfo *progress,
Byte *digest);
HRESULT UnpackData(IInStream *inStream,
const CResource &resource, const CHeader &header,
const CDatabase *db,
CByteBuffer &buf, Byte *digest);
};
}}
#endif
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