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506 lines
11 KiB
506 lines
11 KiB
//***************************************************************************
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//
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// MAINDLL.CPP
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//
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// Module: WBEM VIEW PROVIDER
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//
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// Purpose: Contains the global dll functions
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//
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// Copyright (c) 1998-2001 Microsoft Corporation, All Rights Reserved
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//
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//***************************************************************************
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#include "precomp.h"
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#include <provtempl.h>
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#include <provmt.h>
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#include <typeinfo.h>
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#include <process.h>
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#include <objbase.h>
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#include <olectl.h>
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#include <dsgetdc.h>
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#include <lmcons.h>
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#include <initguid.h>
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#ifndef INITGUID
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#define INITGUID
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#endif
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#include <windows.h>
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#include <stdio.h>
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#include <provexpt.h>
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#include <tchar.h>
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#include <wbemidl.h>
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#include <provcoll.h>
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#include <provcont.h>
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#include <provevt.h>
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#include <provthrd.h>
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#include <provlog.h>
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#include <instpath.h>
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#include <genlex.h>
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#include <sql_1.h>
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#include <objpath.h>
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#include <vpdefs.h>
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#include <vpcfac.h>
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#include <vpquals.h>
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#include <vpserv.h>
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#include <vptasks.h>
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//OK we need these globals
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HINSTANCE g_hInst = NULL;
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ProvDebugLog* CViewProvServ::sm_debugLog = NULL;
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IUnsecuredApartment* CViewProvServ::sm_UnsecApp = NULL;
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CRITICAL_SECTION g_CriticalSection;
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//***************************************************************************
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//
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// LibMain32
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//
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// Purpose: Entry point for DLL. Good place for initialization.
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// Return: TRUE if OK.
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//***************************************************************************
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BOOL APIENTRY DllMain (
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HINSTANCE hInstance,
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ULONG ulReason ,
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LPVOID pvReserved
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)
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{
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BOOL status = TRUE ;
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if ( DLL_PROCESS_DETACH == ulReason )
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{
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DeleteCriticalSection(&g_CriticalSection);
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}
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else if ( DLL_PROCESS_ATTACH == ulReason )
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{
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g_hInst=hInstance;
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InitializeCriticalSection(&g_CriticalSection);
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DisableThreadLibraryCalls(hInstance);
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CViewProvServ::sm_debugLog = ProvDebugLog::GetProvDebugLog(LOG_VIEWPROV);
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}
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else if ( DLL_THREAD_DETACH == ulReason )
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{
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}
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else if ( DLL_THREAD_ATTACH == ulReason )
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{
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}
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return status;
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}
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//***************************************************************************
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//
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// DllGetClassObject
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//
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// Purpose: Called by Ole when some client wants a a class factory. Return
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// one only if it is the sort of class this DLL supports.
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//
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//***************************************************************************
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STDAPI DllGetClassObject (
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REFCLSID rclsid ,
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REFIID riid,
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void **ppv
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)
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{
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HRESULT status = S_OK ;
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SetStructuredExceptionHandler seh;
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BOOL bEnteredCritSec = FALSE;
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BOOL bAllocate = FALSE;
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BOOL bDebugLog = FALSE;
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BOOL bClear = FALSE;
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try
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{
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EnterCriticalSection(&g_CriticalSection);
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bEnteredCritSec = TRUE;
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if ( rclsid == CLSID_CViewProviderClassFactory )
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{
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CViewProvClassFactory *lpunk = new CViewProvClassFactory;
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if ( lpunk == NULL )
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{
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status = E_OUTOFMEMORY ;
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}
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else
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{
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status = lpunk->QueryInterface ( riid , ppv ) ;
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if ( FAILED ( status ) )
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{
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delete lpunk ;
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}
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}
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}
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else
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{
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status = CLASS_E_CLASSNOTAVAILABLE ;
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}
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LeaveCriticalSection(&g_CriticalSection);
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bEnteredCritSec = FALSE;
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}
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catch(Structured_Exception e_SE)
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{
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bClear = TRUE;
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status = E_UNEXPECTED;
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}
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catch(Heap_Exception e_HE)
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{
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bClear = TRUE;
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status = E_OUTOFMEMORY;
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}
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catch(...)
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{
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bClear = TRUE;
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status = E_UNEXPECTED;
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}
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if ( bEnteredCritSec )
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{
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LeaveCriticalSection(&g_CriticalSection);
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}
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return status ;
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}
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//***************************************************************************
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//
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// DllCanUnloadNow
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//
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// Purpose: Called periodically by Ole in order to determine if the
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// DLL can be freed.//
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// Return: TRUE if there are no objects in use and the class factory
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// isn't locked.
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//***************************************************************************
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STDAPI DllCanUnloadNow ()
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{
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/*
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* Place code in critical section
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*/
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BOOL unload = FALSE;
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SetStructuredExceptionHandler seh;
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BOOL bEnteredCritSec = FALSE;
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try
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{
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EnterCriticalSection(&g_CriticalSection);
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bEnteredCritSec = TRUE;
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unload = (0 == CViewProvClassFactory :: locksInProgress)
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&& (0 == CViewProvClassFactory :: objectsInProgress);
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if (unload)
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{
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if (NULL != CViewProvServ::sm_UnsecApp)
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{
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CViewProvServ::sm_UnsecApp->Release();
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CViewProvServ::sm_UnsecApp = NULL;
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}
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}
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LeaveCriticalSection(&g_CriticalSection);
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bEnteredCritSec = FALSE;
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}
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catch(Structured_Exception e_SE)
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{
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unload = FALSE;
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}
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catch(Heap_Exception e_HE)
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{
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unload = FALSE;
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}
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catch(...)
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{
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unload = FALSE;
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}
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if ( bEnteredCritSec )
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{
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LeaveCriticalSection(&g_CriticalSection);
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}
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return unload ? ResultFromScode ( S_OK ) : ResultFromScode ( S_FALSE ) ;
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}
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//Strings used during self registeration
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#define REG_FORMAT2_STR _T("%s%s")
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#define REG_FORMAT3_STR _T("%s%s\\%s")
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#define VER_IND_STR _T("VersionIndependentProgID")
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#define NOT_INTERT_STR _T("NotInsertable")
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#define INPROC32_STR _T("InprocServer32")
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#define PROGID_STR _T("ProgID")
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#define THREADING_MODULE_STR _T("ThreadingModel")
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#define APARTMENT_STR _T("Both")
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#define CLSID_STR _T("CLSID\\")
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#define PROVIDER_NAME_STR _T("Microsoft WBEM View Provider")
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#define PROVIDER_STR _T("WBEM.VIEW.PROVIDER")
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#define PROVIDER_CVER_STR _T("WBEM.VIEW.PROVIDER\\CurVer")
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#define PROVIDER_CLSID_STR _T("WBEM.VIEW.PROVIDER\\CLSID")
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#define PROVIDER_VER_CLSID_STR _T("WBEM.VIEW.PROVIDER.0\\CLSID")
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#define PROVIDER_VER_STR _T("WBEM.VIEW.PROVIDER.0")
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/***************************************************************************
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* SetKeyAndValue
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*
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* Purpose:
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* Private helper function for DllRegisterServer that creates
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* a key, sets a value, and closes that key.
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*
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* Parameters:
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* pszKey LPTSTR to the ame of the key
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* pszSubkey LPTSTR ro the name of a subkey
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* pszValue LPTSTR to the value to store
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*
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* Return Value:
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* BOOL TRUE if successful, FALSE otherwise.
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***************************************************************************/
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BOOL SetKeyAndValue(TCHAR* pszKey, TCHAR* pszSubkey, TCHAR* pszValueName, TCHAR* pszValue)
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{
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HKEY hKey;
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TCHAR szKey[256];
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_tcscpy(szKey, HKEYCLASSES);
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_tcscat(szKey, pszKey);
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if (NULL!=pszSubkey)
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{
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_tcscat(szKey, _T("\\"));
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_tcscat(szKey, pszSubkey);
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}
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if (ERROR_SUCCESS!=RegCreateKeyEx(HKEY_LOCAL_MACHINE
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, szKey, 0, NULL, REG_OPTION_NON_VOLATILE
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, KEY_ALL_ACCESS, NULL, &hKey, NULL))
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return FALSE;
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if (NULL!=pszValue)
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{
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if (ERROR_SUCCESS != RegSetValueEx(hKey, pszValueName, 0, REG_SZ, (BYTE *)pszValue
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, (_tcslen(pszValue)+1)*sizeof(TCHAR)))
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return FALSE;
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}
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RegCloseKey(hKey);
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return TRUE;
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}
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/***************************************************************************
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* DllRegisterServer
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*
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* Purpose:
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* Instructs the server to create its own registry entries
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*
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* Parameters:
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* None
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*
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* Return Value:
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* HRESULT NOERROR if registration successful, error
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* otherwise.
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***************************************************************************/
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STDAPI DllRegisterServer()
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{
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SetStructuredExceptionHandler seh;
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try
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{
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TCHAR szModule[MAX_PATH + 1];
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GetModuleFileName(g_hInst,(TCHAR*)szModule, MAX_PATH + 1);
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TCHAR szProviderClassID[128];
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TCHAR szProviderCLSIDClassID[128];
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#ifndef UNICODE
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wchar_t t_strGUID[128];
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if (0 == StringFromGUID2(CLSID_CViewProviderClassFactory, t_strGUID, 128))
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{
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return SELFREG_E_CLASS;
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}
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if (0 == WideCharToMultiByte(CP_ACP,
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0,
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t_strGUID,
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-1,
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szProviderClassID,
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128,
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NULL,
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NULL))
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{
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return SELFREG_E_CLASS;
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}
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#else
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if (0 == StringFromGUID2(CLSID_CViewProviderClassFactory, szProviderClassID, 128))
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{
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return SELFREG_E_CLASS;
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}
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#endif
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_tcscpy(szProviderCLSIDClassID,CLSID_STR);
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_tcscat(szProviderCLSIDClassID,szProviderClassID);
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//Create entries under CLSID
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if (FALSE ==SetKeyAndValue(szProviderCLSIDClassID, NULL, NULL, PROVIDER_NAME_STR))
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return SELFREG_E_CLASS;
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if (FALSE ==SetKeyAndValue(szProviderCLSIDClassID, PROGID_STR, NULL, PROVIDER_VER_STR))
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return SELFREG_E_CLASS;
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if (FALSE ==SetKeyAndValue(szProviderCLSIDClassID, VER_IND_STR, NULL, PROVIDER_STR))
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return SELFREG_E_CLASS;
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if (FALSE ==SetKeyAndValue(szProviderCLSIDClassID, NOT_INTERT_STR, NULL, NULL))
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return SELFREG_E_CLASS;
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if (FALSE ==SetKeyAndValue(szProviderCLSIDClassID, INPROC32_STR, NULL,szModule))
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return SELFREG_E_CLASS;
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if (FALSE ==SetKeyAndValue(szProviderCLSIDClassID, INPROC32_STR,THREADING_MODULE_STR, APARTMENT_STR))
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return SELFREG_E_CLASS;
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}
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catch(Structured_Exception e_SE)
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{
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return E_UNEXPECTED;
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}
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catch(Heap_Exception e_HE)
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{
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return E_OUTOFMEMORY;
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}
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catch(...)
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{
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return E_UNEXPECTED;
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}
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return S_OK;
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}
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/***************************************************************************
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* DllUnregisterServer
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*
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* Purpose:
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* Instructs the server to remove its own registry entries
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*
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* Parameters:
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* None
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*
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* Return Value:
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* HRESULT NOERROR if registration successful, error
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* otherwise.
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***************************************************************************/
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STDAPI DllUnregisterServer(void)
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{
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HRESULT hr = S_OK;
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SetStructuredExceptionHandler seh;
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try
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{
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TCHAR szTemp[128];
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TCHAR szProviderClassID[128];
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TCHAR szProviderCLSIDClassID[128];
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#ifndef UNICODE
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wchar_t t_strGUID[128];
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if (0 == StringFromGUID2(CLSID_CViewProviderClassFactory, t_strGUID, 128))
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{
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return SELFREG_E_CLASS;
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}
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if (0 == WideCharToMultiByte(CP_ACP,
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0,
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t_strGUID,
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-1,
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szProviderClassID,
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128,
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NULL,
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NULL))
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{
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return SELFREG_E_CLASS;
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}
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#else
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if (0 == StringFromGUID2(CLSID_CViewProviderClassFactory, szProviderClassID, 128))
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{
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return SELFREG_E_CLASS;
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}
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#endif
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_tcscpy(szProviderCLSIDClassID,CLSID_STR);
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_tcscat(szProviderCLSIDClassID,szProviderClassID);
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//Delete entries under CLSID
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_stprintf(szTemp, REG_FORMAT3_STR, HKEYCLASSES, szProviderCLSIDClassID, PROGID_STR);
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if (ERROR_SUCCESS != RegDeleteKey(HKEY_LOCAL_MACHINE, szTemp))
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{
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hr = SELFREG_E_CLASS;
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}
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_stprintf(szTemp, REG_FORMAT3_STR, HKEYCLASSES, szProviderCLSIDClassID, VER_IND_STR);
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if (ERROR_SUCCESS != RegDeleteKey(HKEY_LOCAL_MACHINE, szTemp))
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{
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hr = SELFREG_E_CLASS;
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}
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_stprintf(szTemp, REG_FORMAT3_STR, HKEYCLASSES, szProviderCLSIDClassID, NOT_INTERT_STR);
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if (ERROR_SUCCESS != RegDeleteKey(HKEY_LOCAL_MACHINE, szTemp))
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{
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hr = SELFREG_E_CLASS;
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}
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_stprintf(szTemp, REG_FORMAT3_STR, HKEYCLASSES, szProviderCLSIDClassID, INPROC32_STR);
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if (ERROR_SUCCESS != RegDeleteKey(HKEY_LOCAL_MACHINE, szTemp))
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{
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hr = SELFREG_E_CLASS;
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}
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_stprintf(szTemp, REG_FORMAT2_STR, HKEYCLASSES, szProviderCLSIDClassID);
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if (ERROR_SUCCESS != RegDeleteKey(HKEY_LOCAL_MACHINE, szTemp))
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{
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hr = SELFREG_E_CLASS;
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}
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}
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catch(Structured_Exception e_SE)
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{
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hr = E_UNEXPECTED;
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}
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catch(Heap_Exception e_HE)
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{
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hr = E_OUTOFMEMORY;
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}
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catch(...)
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{
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hr = E_UNEXPECTED;
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}
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return hr;
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}
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