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52 lines
1.8 KiB
52 lines
1.8 KiB
// --------------------------------------------------------------------------
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// Module Name: Impersonation.h
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//
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// Copyright (c) 1999-2000, Microsoft Corporation
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//
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// Classes that handle state preservation, changing and restoration.
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//
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// History: 1999-08-18 vtan created
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// 1999-11-16 vtan separate file
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// 2000-02-01 vtan moved from Neptune to Whistler
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// --------------------------------------------------------------------------
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#ifndef _Impersonation_
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#define _Impersonation_
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#include "KernelResources.h"
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// --------------------------------------------------------------------------
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// CImpersonation
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//
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// Purpose: This class allows a thread to impersonate a user and revert to
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// self when the object goes out of scope.
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//
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// History: 1999-08-18 vtan created
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// 1999-10-13 vtan added reference counting
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// 2000-02-01 vtan moved from Neptune to Whistler
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// --------------------------------------------------------------------------
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class CImpersonation
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{
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private:
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CImpersonation (void);
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public:
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CImpersonation (HANDLE hToken);
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~CImpersonation (void);
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bool IsImpersonating (void) const;
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static NTSTATUS ImpersonateUser (HANDLE hThread, HANDLE hToken);
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static NTSTATUS StaticInitialize (void);
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static NTSTATUS StaticTerminate (void);
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private:
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static CMutex* s_pMutex;
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static int s_iReferenceCount;
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NTSTATUS _status;
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bool _fAlreadyImpersonating;
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};
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#endif /* _Impersonation_ */
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