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909 lines
26 KiB
909 lines
26 KiB
#pragma once
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//+============================================================================
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1994 - 1998.
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//
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// File: hntfsstg.hxx
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//
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// This file provides the NFF (NTFS Flat File) IStorage declaration.
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//
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// History:
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// 5/6/98 MikeHill
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// - Split the Init method into two methods, one which is
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// file name based and the other which is handle based.
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// 5/18/98 MikeHill
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// - Simplified constructur and added Init method.
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//
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//+============================================================================
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#include "prophdr.hxx"
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#include "stgprops.hxx"
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#include <new.h>
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#include "psetstg.hxx"
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#include "cli.hxx" // CLargeInteger/CULargeInteger
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#include "hntfsstm.hxx"
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#include "bag.hxx" // CPropertyBagEx
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#include "names.hxx"
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#ifndef ELEMENTS
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#define ELEMENTS(x) (sizeof(x)/sizeof(x[0]))
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#endif
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//+============================================================================
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//
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// Class CNtfsSTATSTGArray
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//
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// This class maintains an array of STATSTG structures. It's used by
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// CNtfsEnumSTATSTG. We separate this out from that class so that if you
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// clone a CNtfsEnumSTATSTG enumerator, the data can be shared, but the
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// clone can maintain its own seek pointer.
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//
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//+============================================================================
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class CNtfsSTATSTGArray
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{
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public:
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CNtfsSTATSTGArray( IBlockingLock *pBlockingLock );
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~CNtfsSTATSTGArray();
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HRESULT Init( HANDLE hFile );
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public:
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HRESULT NextAt( ULONG iNext, STATSTG *prgstatstg, ULONG *pcFetched );
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inline VOID AddRef();
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inline VOID Release();
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inline ULONG GetCount();
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private:
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HRESULT ReadFileStreamInfo( HANDLE hFile );
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private:
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LONG _cRefs;
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IBlockingLock *_pBlockingLock;
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// A cache of the FileStreamInformation. To refresh this cache, the
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// caller must release the IEnum and re-create it.
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PFILE_STREAM_INFORMATION _pFileStreamInformation;
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ULONG _cFileStreamInformation;
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}; // class CNtfsSTATSTGArray
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inline
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CNtfsSTATSTGArray::CNtfsSTATSTGArray( IBlockingLock *pBlockingLock )
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{
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nffXTrace( "CNtfsSTATSTGArray::CNtfsSTATSTGArray" );
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_cFileStreamInformation = 0;
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_cRefs = 1;
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_pFileStreamInformation = NULL;
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_pBlockingLock = pBlockingLock;
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_pBlockingLock->AddRef();
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}
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inline
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CNtfsSTATSTGArray::~CNtfsSTATSTGArray()
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{
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nffXTrace( "CNtfsSTATSTGArray::~CNtfsSTATSTGArray" );
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if( NULL != _pFileStreamInformation )
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{
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CoTaskMemFree( _pFileStreamInformation );
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_pFileStreamInformation = NULL;
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}
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DfpAssert( NULL != _pBlockingLock );
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_pBlockingLock->Release();
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}
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inline VOID
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CNtfsSTATSTGArray::AddRef()
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{
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LONG cRefs;
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cRefs = InterlockedIncrement( &_cRefs );
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nffDebug(( DEB_REFCOUNT, "CNtfsSTATSTGArray::AddRef(this==%x) == %d\n",
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this, cRefs));
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}
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inline VOID
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CNtfsSTATSTGArray::Release()
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{
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LONG cRefs;
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cRefs = InterlockedDecrement( &_cRefs );
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if( 0 == cRefs )
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delete this;
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nffDebug((DEB_REFCOUNT, "CNtfsSTATSTGArray::Release(this=%x) == %d\n",
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this, cRefs));
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}
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inline ULONG
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CNtfsSTATSTGArray::GetCount()
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{
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nffITrace( "CNtfsSTATSTGArray::GetCount" );
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return( _cFileStreamInformation );
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}
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//+============================================================================
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//
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// Class: CNtfsEnumSTATSTG
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//
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// This class IEnum-erates STATSTG structures for the NTFS IStorage
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// implementation (CNtfsStorage). The data for this enumerator is actually
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// held in a CNtfsSTATSTGArray object.
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//
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//+============================================================================
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#define NTFSENUMSTATSTG_SIG LONGSIG('N','T','S','E')
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#define NTFSENUMSTATSTG_SIGDEL LONGSIG('N','T','S','e')
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class CNtfsEnumSTATSTG: public IEnumSTATSTG
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{
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public:
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CNtfsEnumSTATSTG( IBlockingLock *pBlockingLock );
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CNtfsEnumSTATSTG( CNtfsEnumSTATSTG &Other );
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~CNtfsEnumSTATSTG();
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public:
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STDMETHOD(QueryInterface)( REFIID riid, void **ppvObject);
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STDMETHOD_(ULONG, AddRef)(void);
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STDMETHOD_(ULONG, Release)(void);
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STDMETHOD(Next)(ULONG celt, STATSTG * rgelt, ULONG * pceltFetched);
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STDMETHOD(Skip)(ULONG celt);
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STDMETHOD(Reset)();
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STDMETHOD(Clone)(IEnumSTATSTG **ppenum);
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public:
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STDMETHOD(Init)(HANDLE hFile);
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private:
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ULONG _ulSig;
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LONG _cRefs;
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ULONG _istatNextToRead;
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IBlockingLock *_pBlockingLock;
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CNtfsSTATSTGArray *_pstatstgarray;
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}; // class CNtfsEnumSTATSTG
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inline
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CNtfsEnumSTATSTG::CNtfsEnumSTATSTG( IBlockingLock *pBlockingLock )
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{
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nffXTrace( "CNtfsEnumSTATSTG::CNtfsEnumSTATSTG(pBlockingLock)" );
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_ulSig = NTFSENUMSTATSTG_SIG;
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_cRefs = 1;
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_istatNextToRead = 0;
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_pstatstgarray = NULL;
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_pBlockingLock = pBlockingLock;
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_pBlockingLock->AddRef();
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}
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inline
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CNtfsEnumSTATSTG::CNtfsEnumSTATSTG( CNtfsEnumSTATSTG &Other )
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{
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nffXTrace( "CNtfsEnumSTATSTG::CNtfsEnumSTATSTG(CntfsEnumSTATSTG)" );
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Other._pBlockingLock->Lock( INFINITE );
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// Initialize
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new(this) CNtfsEnumSTATSTG( Other._pBlockingLock );
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// Load state from Other
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_pstatstgarray = Other._pstatstgarray;
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_pstatstgarray->AddRef();
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_istatNextToRead = Other._istatNextToRead;
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Other._pBlockingLock->Unlock();
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}
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inline
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CNtfsEnumSTATSTG::~CNtfsEnumSTATSTG()
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{
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nffXTrace( "CNtfsEnumSTATSTG::~CNtfsEnumSTATSTG" );
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if( NULL != _pstatstgarray )
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_pstatstgarray->Release();
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if( NULL != _pBlockingLock )
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_pBlockingLock->Release();
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_ulSig = NTFSENUMSTATSTG_SIGDEL;
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}
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inline HRESULT STDMETHODCALLTYPE
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CNtfsEnumSTATSTG::Init( HANDLE hFile )
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{
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nffITrace( "CNtfsEnumSTATSTG::Init" );
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HRESULT hr = S_OK;
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// Create a STATSTG Array handler
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_pstatstgarray = new CNtfsSTATSTGArray( _pBlockingLock );
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if( NULL == _pstatstgarray )
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{
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hr = E_OUTOFMEMORY;
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goto Exit;
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}
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// Load the array from the handle
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hr = _pstatstgarray->Init( hFile );
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if( FAILED(hr) ) goto Exit;
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Exit:
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return( hr );
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}
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//+----------------------------------------------------------------------------
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//
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// Class: CNtfsStorageForPropSetStg
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//
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// This class presents an IStorage implementation that behaves exactly
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// as CPropertySetStorage expects. It primary calls to CNtfsStorage,
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// but implements Create/OpenStorage by creating a DocFile on an NTFS
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// stream.
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//
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//+----------------------------------------------------------------------------
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class CNtfsStorage;
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class CNtfsStorageForPropSetStg : public IStorage
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{
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public:
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CNtfsStorageForPropSetStg( );
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~CNtfsStorageForPropSetStg();
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inline void Init( CNtfsStorage *pNtfsStorage );
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public:
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HRESULT STDMETHODCALLTYPE QueryInterface( REFIID riid, void** ppvObject );
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ULONG STDMETHODCALLTYPE AddRef();
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ULONG STDMETHODCALLTYPE Release();
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HRESULT STDMETHODCALLTYPE CreateStream(
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/* [string][in] */ const OLECHAR __RPC_FAR *pwcsName,
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/* [in] */ DWORD grfMode,
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/* [in] */ DWORD reserved1,
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/* [in] */ DWORD reserved2,
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/* [out] */ IStream __RPC_FAR *__RPC_FAR *ppstm);
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HRESULT STDMETHODCALLTYPE OpenStream(
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/* [string][in] */ const OLECHAR __RPC_FAR *pwcsName,
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/* [unique][in] */ void __RPC_FAR *reserved1,
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/* [in] */ DWORD grfMode,
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/* [in] */ DWORD reserved2,
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/* [out] */ IStream __RPC_FAR *__RPC_FAR *ppstm);
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HRESULT STDMETHODCALLTYPE CreateStorage(
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/* [string][in] */ const OLECHAR __RPC_FAR *pwcsName,
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/* [in] */ DWORD grfMode,
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/* [in] */ DWORD reserved1,
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/* [in] */ DWORD reserved2,
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/* [out] */ IStorage __RPC_FAR *__RPC_FAR *ppstg);
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HRESULT STDMETHODCALLTYPE OpenStorage(
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/* [string][unique][in] */ const OLECHAR __RPC_FAR *pwcsName,
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/* [unique][in] */ IStorage __RPC_FAR *pstgPriority,
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/* [in] */ DWORD grfMode,
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/* [unique][in] */ SNB snbExclude,
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/* [in] */ DWORD reserved,
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/* [out] */ IStorage __RPC_FAR *__RPC_FAR *ppstg);
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HRESULT STDMETHODCALLTYPE CopyTo(
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/* [in] */ DWORD ciidExclude,
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/* [size_is][unique][in] */ const IID __RPC_FAR *rgiidExclude,
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/* [unique][in] */ SNB snbExclude,
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/* [unique][in] */ IStorage __RPC_FAR *pstgDest);
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HRESULT STDMETHODCALLTYPE MoveElementTo(
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/* [string][in] */ const OLECHAR __RPC_FAR *pwcsName,
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/* [unique][in] */ IStorage __RPC_FAR *pstgDest,
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/* [string][in] */ const OLECHAR __RPC_FAR *pwcsNewName,
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/* [in] */ DWORD grfFlags);
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HRESULT STDMETHODCALLTYPE Commit(
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/* [in] */ DWORD grfCommitFlags);
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HRESULT STDMETHODCALLTYPE Revert( void);
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HRESULT STDMETHODCALLTYPE EnumElements(
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/* [in] */ DWORD reserved1,
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/* [size_is][unique][in] */ void __RPC_FAR *reserved2,
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/* [in] */ DWORD reserved3,
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/* [out] */ IEnumSTATSTG __RPC_FAR *__RPC_FAR *ppenum);
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HRESULT STDMETHODCALLTYPE DestroyElement(
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/* [string][in] */ const OLECHAR __RPC_FAR *pwcsName);
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HRESULT STDMETHODCALLTYPE RenameElement(
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/* [string][in] */ const OLECHAR __RPC_FAR *pwcsOldName,
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/* [string][in] */ const OLECHAR __RPC_FAR *pwcsNewName);
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HRESULT STDMETHODCALLTYPE SetElementTimes(
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/* [string][unique][in] */ const OLECHAR __RPC_FAR *pwcsName,
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/* [unique][in] */ const FILETIME __RPC_FAR *pctime,
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/* [unique][in] */ const FILETIME __RPC_FAR *patime,
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/* [unique][in] */ const FILETIME __RPC_FAR *pmtime);
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HRESULT STDMETHODCALLTYPE SetClass(
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/* [in] */ REFCLSID clsid);
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HRESULT STDMETHODCALLTYPE SetStateBits(
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/* [in] */ DWORD grfStateBits,
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/* [in] */ DWORD grfMask);
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HRESULT STDMETHODCALLTYPE Stat(
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/* [out] */ STATSTG __RPC_FAR *pstatstg,
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/* [in] */ DWORD grfStatFlag);
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public:
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static HRESULT
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CreateOrOpenStorageOnILockBytes( ILockBytes *plkb, IStorage *pstgPriority, DWORD grfMode,
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SNB snbExclude, BOOL fCreate, IStorage **ppstg );
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private:
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HRESULT CreateOrOpenStorage( const OLECHAR *pwcsName, IStorage *pstgPriority, DWORD grfMode,
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SNB snbExclude, BOOL fCreate, IStorage **ppstg );
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private:
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// This CNtfsStorage is considered the same COM object as this IPropertySetStorage.
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// We don't keep a ref on this, and forward all Unk calls to it (except we
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// intercept IStorage/IUnknown from QI).
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CNtfsStorage *_pNtfsStorage;
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}; // class CNtfsStorageForPropSetStg : public IStorage
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inline
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CNtfsStorageForPropSetStg::CNtfsStorageForPropSetStg( )
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{
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nffXTrace( "CNtfsStorageForPropSetStg::CNtfsStorageForPropSetStg" );
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}
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inline
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CNtfsStorageForPropSetStg::~CNtfsStorageForPropSetStg()
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{
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nffXTrace( "CNtfsStorageForPropSetStg::~CNtfsStorageForPropSetStg" );
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_pNtfsStorage = NULL;
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}
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inline void
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CNtfsStorageForPropSetStg::Init( CNtfsStorage *pNtfsStorage )
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{
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_pNtfsStorage = pNtfsStorage;
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}
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//+============================================================================
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//
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// Class: CNFFTreeMutex
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//
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// This class implements the Tree Mutex for and NFF file.
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//
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// The tree mutex is taken at the top of all IStorage and IStream calls.
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//
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//+============================================================================
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class CNFFTreeMutex: public IBlockingLock
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{
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// ------------
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// Construction
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// ------------
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public:
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inline CNFFTreeMutex( );
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inline ~CNFFTreeMutex();
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inline HRESULT Init();
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// --------
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// IUnknown
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// --------
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public:
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HRESULT STDMETHODCALLTYPE QueryInterface( REFIID riid, void** ppvObject );
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ULONG STDMETHODCALLTYPE AddRef();
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ULONG STDMETHODCALLTYPE Release();
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// -------------
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// IBlockingLock
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// -------------
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public:
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virtual HRESULT STDMETHODCALLTYPE Lock(DWORD dwTimeout);
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virtual HRESULT STDMETHODCALLTYPE Unlock();
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public:
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#if DBG
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LONG GetLockCount();
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#endif
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private:
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LONG _cRefs;
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BOOL _fInitialized;
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mutable CRITICAL_SECTION _cs;
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};
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inline
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CNFFTreeMutex::CNFFTreeMutex()
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{
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_cRefs = 1;
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_fInitialized = FALSE;
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}
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inline
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HRESULT CNFFTreeMutex::Init()
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{
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if (_fInitialized == FALSE)
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{
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NTSTATUS nts = RtlInitializeCriticalSection(&_cs);
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if (!NT_SUCCESS(nts))
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return NtStatusToScode (nts);
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_fInitialized = TRUE;
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}
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return S_OK;
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}
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inline
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CNFFTreeMutex::~CNFFTreeMutex()
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{
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if (_fInitialized)
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DeleteCriticalSection( &_cs );
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}
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//+============================================================================
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//
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// Class: CNtfsStorage
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//
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// This class is both an IStorage and an IPropertySetStorage. It also offers
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// a special IStorage interface which is used by the CPropertySetStorage
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// implementation, this special IStorage is implemented in the
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// CNtfsStorageForPropSetStg contained class.
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//
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// When this class is opened, it opens the default data stream (aka the
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// unnamed data stream aka the Contents stream). It puts that stream handle
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// in a member CNtfsStream object, when then owns the handle, though this
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// class also continues to use the handle.
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//
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// There is no place in an NTFS file to store a Storage's clsid or
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// state bits, so these are stored in seperate "Control Stream" (which is
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// not enumerated by CNtfsEnumSTATSTG).
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//
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//+============================================================================
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#define NTFSSTORAGE_SIG LONGSIG('N','T','S','T')
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#define NTFSSTORAGE_SIGDEL LONGSIG('N','T','S','t')
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////////////////////////////////////////////////////////////////
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// IStorage for an NTFS File. Hungarian Prefix "nffstg"
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//
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class CNtfsStorage : public IStorage,
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public IBlockingLock,
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public ITimeAndNoticeControl,
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public CPropertySetStorage
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#if DBG
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, public IStorageTest
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#endif
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{
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friend CNtfsStorageForPropSetStg;
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// ------------
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// Construction
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// ------------
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public:
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inline CNtfsStorage( DWORD grfMode );
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inline ~CNtfsStorage();
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private:
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// --------
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// IUnknown
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// --------
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public:
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HRESULT STDMETHODCALLTYPE QueryInterface( REFIID riid, void** ppvObject );
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ULONG STDMETHODCALLTYPE AddRef();
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ULONG STDMETHODCALLTYPE Release();
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// --------
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// IStorage
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// --------
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public:
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virtual HRESULT STDMETHODCALLTYPE CreateStream(
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/* [string][in] */ const OLECHAR __RPC_FAR *pwcsName,
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/* [in] */ DWORD grfMode,
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/* [in] */ DWORD reserved1,
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/* [in] */ DWORD reserved2,
|
|
/* [out] */ IStream __RPC_FAR *__RPC_FAR *ppstm);
|
|
|
|
virtual HRESULT STDMETHODCALLTYPE OpenStream(
|
|
/* [string][in] */ const OLECHAR __RPC_FAR *pwcsName,
|
|
/* [unique][in] */ void __RPC_FAR *reserved1,
|
|
/* [in] */ DWORD grfMode,
|
|
/* [in] */ DWORD reserved2,
|
|
/* [out] */ IStream __RPC_FAR *__RPC_FAR *ppstm);
|
|
|
|
virtual HRESULT STDMETHODCALLTYPE CreateStorage(
|
|
/* [string][in] */ const OLECHAR __RPC_FAR *pwcsName,
|
|
/* [in] */ DWORD grfMode,
|
|
/* [in] */ DWORD reserved1,
|
|
/* [in] */ DWORD reserved2,
|
|
/* [out] */ IStorage __RPC_FAR *__RPC_FAR *ppstg);
|
|
|
|
virtual HRESULT STDMETHODCALLTYPE OpenStorage(
|
|
/* [string][unique][in] */ const OLECHAR __RPC_FAR *pwcsName,
|
|
/* [unique][in] */ IStorage __RPC_FAR *pstgPriority,
|
|
/* [in] */ DWORD grfMode,
|
|
/* [unique][in] */ SNB snbExclude,
|
|
/* [in] */ DWORD reserved,
|
|
/* [out] */ IStorage __RPC_FAR *__RPC_FAR *ppstg);
|
|
|
|
virtual HRESULT STDMETHODCALLTYPE CopyTo(
|
|
/* [in] */ DWORD ciidExclude,
|
|
/* [size_is][unique][in] */ const IID __RPC_FAR *rgiidExclude,
|
|
/* [unique][in] */ SNB snbExclude,
|
|
/* [unique][in] */ IStorage __RPC_FAR *pstgDest);
|
|
|
|
virtual HRESULT STDMETHODCALLTYPE MoveElementTo(
|
|
/* [string][in] */ const OLECHAR __RPC_FAR *pwcsName,
|
|
/* [unique][in] */ IStorage __RPC_FAR *pstgDest,
|
|
/* [string][in] */ const OLECHAR __RPC_FAR *pwcsNewName,
|
|
/* [in] */ DWORD grfFlags);
|
|
|
|
virtual HRESULT STDMETHODCALLTYPE Commit(
|
|
/* [in] */ DWORD grfCommitFlags);
|
|
|
|
virtual HRESULT STDMETHODCALLTYPE Revert( void);
|
|
|
|
virtual HRESULT STDMETHODCALLTYPE EnumElements(
|
|
/* [in] */ DWORD reserved1,
|
|
/* [size_is][unique][in] */ void __RPC_FAR *reserved2,
|
|
/* [in] */ DWORD reserved3,
|
|
/* [out] */ IEnumSTATSTG __RPC_FAR *__RPC_FAR *ppenum);
|
|
|
|
virtual HRESULT STDMETHODCALLTYPE DestroyElement(
|
|
/* [string][in] */ const OLECHAR __RPC_FAR *pwcsName);
|
|
|
|
virtual HRESULT STDMETHODCALLTYPE RenameElement(
|
|
/* [string][in] */ const OLECHAR __RPC_FAR *pwcsOldName,
|
|
/* [string][in] */ const OLECHAR __RPC_FAR *pwcsNewName);
|
|
|
|
virtual HRESULT STDMETHODCALLTYPE SetElementTimes(
|
|
/* [string][unique][in] */ const OLECHAR __RPC_FAR *pwcsName,
|
|
/* [unique][in] */ const FILETIME __RPC_FAR *pctime,
|
|
/* [unique][in] */ const FILETIME __RPC_FAR *patime,
|
|
/* [unique][in] */ const FILETIME __RPC_FAR *pmtime);
|
|
|
|
virtual HRESULT STDMETHODCALLTYPE SetClass(
|
|
/* [in] */ REFCLSID clsid);
|
|
|
|
virtual HRESULT STDMETHODCALLTYPE SetStateBits(
|
|
/* [in] */ DWORD grfStateBits,
|
|
/* [in] */ DWORD grfMask);
|
|
|
|
virtual HRESULT STDMETHODCALLTYPE Stat(
|
|
/* [out] */ STATSTG __RPC_FAR *pstatstg,
|
|
/* [in] */ DWORD grfStatFlag);
|
|
|
|
|
|
// -------------
|
|
// IBlockingLock
|
|
// -------------
|
|
|
|
public:
|
|
|
|
virtual HRESULT STDMETHODCALLTYPE Lock(DWORD dwTimeout);
|
|
virtual HRESULT STDMETHODCALLTYPE Unlock();
|
|
|
|
|
|
// ---------------------
|
|
// ITimeAndNoticeControl
|
|
// ---------------------
|
|
|
|
#define NFF_SUPPRESS_NOTIFY 1
|
|
|
|
public:
|
|
virtual HRESULT STDMETHODCALLTYPE SuppressChanges(DWORD, DWORD);
|
|
|
|
|
|
// ------------
|
|
// IStorageTest
|
|
// ------------
|
|
public:
|
|
|
|
#if DBG
|
|
STDMETHOD(UseNTFS4Streams)( BOOL fUseNTFS4Streams );
|
|
STDMETHOD(GetFormatVersion)(WORD *pw);
|
|
STDMETHOD(SimulateLowMemory)( BOOL fSimulate );
|
|
STDMETHOD(GetLockCount)();
|
|
STDMETHOD(IsDirty)();
|
|
#endif
|
|
|
|
// -----------------------------------------
|
|
// Public methods (not part of an interface)
|
|
// -----------------------------------------
|
|
|
|
public:
|
|
|
|
HRESULT InitFromName( const WCHAR *pwszName,
|
|
BOOL fCreate,
|
|
DWORD dwFlags );
|
|
|
|
HRESULT InitFromMainStreamHandle( HANDLE* phFileContents,
|
|
const WCHAR* wcszPath,
|
|
BOOL fCreate,
|
|
DWORD dwOpenFlags,
|
|
DWORD fmtKnown );
|
|
|
|
HRESULT GetStreamHandle( HANDLE *phStream,
|
|
const WCHAR *pwcsName,
|
|
DWORD grfMode,
|
|
BOOL fCreateAPI);
|
|
|
|
HRESULT NewCNtfsStream( const WCHAR *pwcsName,
|
|
DWORD grfMode,
|
|
BOOL fCreateAPI,
|
|
CNtfsStream **ppstm );
|
|
|
|
static HRESULT IsNffAppropriate( const WCHAR* pwszName );
|
|
|
|
// ----------------
|
|
// Internal Methods
|
|
// ----------------
|
|
|
|
public:
|
|
|
|
HRESULT DestroyStreamElement( const OLECHAR *poszName );
|
|
HRESULT InitCNtfsStream( CNtfsStream *pnffstm,
|
|
HANDLE hStream,
|
|
DWORD grfMode,
|
|
const WCHAR * pwcsName );
|
|
|
|
protected:
|
|
|
|
static HRESULT IsNffAppropriate( HANDLE hFile, const WCHAR* wcszPath );
|
|
|
|
HRESULT OpenControlStream( BOOL fCreateAPI );
|
|
HRESULT DeleteControlStream();
|
|
HRESULT WriteControlStream();
|
|
|
|
HRESULT StreamExists( const WCHAR *pwszName );
|
|
|
|
HRESULT SetAllStreamsTimes( const FILETIME *pctime,
|
|
const FILETIME *patime,
|
|
const FILETIME *pmtime);
|
|
|
|
HRESULT MarkAllStreamsAux();
|
|
|
|
private:
|
|
|
|
HRESULT ShutDownStorage();
|
|
HRESULT CheckReverted();
|
|
HRESULT GetFilePath( WCHAR** ppwszPath );
|
|
BOOL FindAlreadyOpenStream( const OLECHAR* pwcsName,
|
|
CNtfsStream** pstm);
|
|
|
|
static HRESULT ModeToNtFlags(DWORD grfMode,
|
|
DWORD dwFlags,
|
|
BOOL fCreateAPI,
|
|
ACCESS_MASK *pam,
|
|
ULONG *pulAttributes,
|
|
ULONG *pulSharing,
|
|
ULONG *pulCreateDisposition,
|
|
ULONG *pulCreateOptions);
|
|
|
|
HRESULT OpenNtStream( const CNtfsStreamName& nsnName,
|
|
DWORD grfMode,
|
|
DWORD grfAttrs,
|
|
BOOL fCreate,
|
|
HANDLE *ph);
|
|
|
|
static HRESULT OpenNtFileHandle( const UNICODE_STRING& usNtfsName,
|
|
HANDLE hParent,
|
|
DWORD grfMode,
|
|
DWORD grfAttrs,
|
|
BOOL fCreate,
|
|
HANDLE *ph);
|
|
|
|
|
|
static HRESULT IsOfflineFile( HANDLE hFile );
|
|
|
|
static HRESULT TestNt4StreamNameBug(
|
|
PFILE_STREAM_INFORMATION pfsiBuf,
|
|
const WCHAR* wcszPath );
|
|
|
|
static BOOL IsControlStreamExtant(
|
|
PFILE_STREAM_INFORMATION pfsiBuf );
|
|
|
|
static BOOL AreAnyNtPropertyStreamsExtant(
|
|
PFILE_STREAM_INFORMATION pfsiBuf );
|
|
|
|
|
|
// --------------
|
|
// Internal state
|
|
// --------------
|
|
|
|
protected:
|
|
|
|
// _cReferences; is in the base class (CPropertySetStorage)
|
|
|
|
ULONG _sig;
|
|
|
|
CNFFTreeMutex * _pTreeMutex;
|
|
|
|
// Mode used to open/create this storage, used by Stat
|
|
DWORD _grfMode;
|
|
|
|
// E.g. "D:" or "\", used to compose full path name in Stat
|
|
WCHAR _wcDriveLetter;
|
|
|
|
// Implementation of IStorage for CPropertySetStorage
|
|
CNtfsStorageForPropSetStg _NtfsStorageForPropSetStg;
|
|
|
|
// Linked list of open streams.
|
|
CNtfsStream *_pstmOpenList;
|
|
|
|
// File handle for the file (::DATA$ stream)
|
|
HANDLE _hFileMainStream;
|
|
|
|
// Control stream, used to store clsid & state bits
|
|
HANDLE _hFileControlStream;
|
|
WORD _hsmStatus;
|
|
DWORD _dwStgStateBits; // Cache of GetStateBits()
|
|
CLSID _clsidStgClass; // Cache for GetClass()
|
|
|
|
// Property bag. This is a member since it is QI-eqivalent to
|
|
// the IStorage interface
|
|
CPropertyBagEx _PropertyBagEx;
|
|
|
|
// Various state flags
|
|
// #define NFF_UPDATE_MTIME 0x0001 Not Implemented
|
|
#define NFF_NO_TIME_CHANGE 0x0002
|
|
#define NFF_REVERTED 0x0004
|
|
#define NFF_INIT_COMPLETED 0x0008
|
|
#define NFF_FILE_CLOSED 0x0010
|
|
#define NFF_MARK_AUX 0x0020
|
|
DWORD _dwState;
|
|
|
|
// Saved filetime
|
|
FILETIME _filetime;
|
|
|
|
}; // class CNtfsStorage
|
|
|
|
//
|
|
// Version Zero structure of the data in the control stream.
|
|
//
|
|
typedef struct tagNFFCONTROLBITS {
|
|
WORD sig;
|
|
WORD hsmStatus;
|
|
DWORD bits; // Set/Get StateBits
|
|
CLSID clsid; // Set/Get Class
|
|
} NFFCONTROLBITS;
|
|
|
|
|
|
|
|
inline HRESULT
|
|
CNtfsStorage::CheckReverted()
|
|
{
|
|
if(NFF_REVERTED & _dwState)
|
|
return STG_E_REVERTED;
|
|
return S_OK;
|
|
}
|
|
|
|
#define STGM_READ_ATTRIBUTE 0x04 // Not a real STGM_ flag.
|
|
|
|
// Values for the "dwFlags" argument in NFFOpen*()
|
|
//
|
|
#define NFFOPEN_NORMAL 0x0
|
|
//#define NFFOPEN_ASYNC 0x0
|
|
#define NFFOPEN_SYNC 0x0001
|
|
#define NFFOPEN_CONTENTSTREAM 0x0004
|
|
#define NFFOPEN_SUPPRESS_CHANGES 0x0008
|
|
#define NFFOPEN_CLEANUP 0x0010
|
|
|
|
//-----------------------------------------------------------
|
|
//
|
|
// NFFOpen();
|
|
//
|
|
// Routine for the rest of Storage to use to open NFF files
|
|
// without knowing a lot of details.
|
|
//
|
|
HRESULT NFFOpen(const WCHAR *pwszName,
|
|
DWORD grfMode,
|
|
DWORD dwFlags,
|
|
BOOL fCreate,
|
|
REFIID riid,
|
|
void **ppv);
|
|
|
|
HRESULT
|
|
NFFOpenOnHandle( BOOL fCreate,
|
|
DWORD grfMode,
|
|
DWORD stgfmt,
|
|
HANDLE* phStream,
|
|
REFIID riid,
|
|
void **ppv);
|
|
|
|
HRESULT EnumNtStreams (HANDLE h,
|
|
FILE_STREAM_INFORMATION ** ppfsi,
|
|
ULONG *pulBufferSize,
|
|
BOOL fGrow);
|
|
|
|
const FILE_STREAM_INFORMATION *
|
|
FindStreamInFSI( IN const FILE_STREAM_INFORMATION *pfsi,
|
|
IN const WCHAR *pwszNtStreamName // In :*:$data format
|
|
);
|
|
|
|
BOOL
|
|
FindStreamPrefixInFSI( IN const FILE_STREAM_INFORMATION *pfsi,
|
|
IN const WCHAR *pwszPrefix
|
|
);
|
|
|
|
BOOL IsNtStreamExtant( const FILE_STREAM_INFORMATION *pfsi,
|
|
const WCHAR *pwsz );
|
|
//+----------------------------------------------------------------------------
|
|
//
|
|
// Method: CNtfsEnumSTATSTG::NextFSI (private)
|
|
//
|
|
// Advances the FILE Stream Information pointer to the nex record
|
|
// Returns NULL after the last record.
|
|
//
|
|
//+----------------------------------------------------------------------------
|
|
|
|
inline PFILE_STREAM_INFORMATION
|
|
NextFSI( const FILE_STREAM_INFORMATION *pFSI )
|
|
{
|
|
if( 0 == pFSI->NextEntryOffset )
|
|
return NULL;
|
|
else
|
|
return (PFILE_STREAM_INFORMATION) ((PBYTE)pFSI + pFSI->NextEntryOffset);
|
|
}
|
|
|
|
inline BOOL
|
|
IsNtStreamExtant( const FILE_STREAM_INFORMATION *pfsi,
|
|
const WCHAR *pwszNtStreamName // In :*:$data format
|
|
)
|
|
{
|
|
return( NULL != FindStreamInFSI( pfsi, pwszNtStreamName ));
|
|
}
|
|
|
|
|
|
|