Source code of Windows XP (NT5)
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//***************************************************************************
//
// MAIND.CPP
//
// Module: WBEM VIEW PROVIDER
//
// Purpose: Contains the global EXE functions
//
// Copyright (c) 1998-2001 Microsoft Corporation, All Rights Reserved
//
//***************************************************************************
#include "precomp.h"
#include <provtempl.h>
#include <provmt.h>
#include <typeinfo.h>
#include <process.h>
#include <objbase.h>
#include <objidl.h>
#include <olectl.h>
#include <initguid.h>
#ifndef INITGUID
#define INITGUID
#endif
#include <stdio.h>
#include <tchar.h>
#include <wbemidl.h>
#include <provcoll.h>
#include <provcont.h>
#include <provevt.h>
#include <provthrd.h>
#include <provlog.h>
#include <dsgetdc.h>
#include <lmcons.h>
#include <instpath.h>
#include <genlex.h>
#include <sql_1.h>
#include <objpath.h>
#include <vpdefs.h>
#include <vpcfac.h>
#include <vpquals.h>
#include <vpserv.h>
#include <vptasks.h>
//OK we need these globals
ProvDebugLog* CViewProvServ::sm_debugLog = NULL;
IUnsecuredApartment* CViewProvServ::sm_UnsecApp = NULL;
CRITICAL_SECTION g_CriticalSection;
HMODULE ghOle32 = NULL;
BOOL s_Exiting = FALSE;
typedef HRESULT (WINAPI* PFNCOINITIALIZEEX)(void* pvReserved, //Reserved
DWORD dwCoInit //COINIT value
);
typedef HRESULT (WINAPI* PFNCOINITIALIZESECURITY)(
PSECURITY_DESCRIPTOR pSecDesc,
LONG cAuthSvc,
SOLE_AUTHENTICATION_SERVICE *asAuthSvc,
void *pReserved1,
DWORD dwAuthnLevel,
DWORD dwImpLevel,
void *pReserved2,
DWORD dwCapabilities,
void *pReserved3 );
HRESULT COMInit();
STDAPI ExeRegisterServer(void);
STDAPI ExeUnregisterServer(void);
CViewProvClassFactory *g_lpunk;
BOOL StartupVP (DWORD *pdwClassFac)
{
InitializeCriticalSection(&g_CriticalSection);
ProvDebugLog::Startup();
CViewProvServ::sm_debugLog = new ProvDebugLog(_T("ViewProvider"));;
g_lpunk = new CViewProvClassFactory;
g_lpunk->AddRef();
HRESULT hr = CoRegisterClassObject(
CLSID_CViewProviderClassFactory, //Class identifier (CLSID) to be registered
(IUnknown *) g_lpunk, //Pointer to the class object
CLSCTX_LOCAL_SERVER, //Context for running executable code
REGCLS_MULTIPLEUSE, //How to connect to the class object
pdwClassFac //Pointer to the value returned
);
return (SUCCEEDED(hr));
}
void ShutdownVP(DWORD dwClassFac)
{
delete CViewProvServ::sm_debugLog;
CViewProvServ::sm_debugLog = NULL;
ProvDebugLog::Closedown();
if (NULL != CViewProvServ::sm_UnsecApp)
{
CViewProvServ::sm_UnsecApp->Release();
CViewProvServ::sm_UnsecApp = NULL;
}
if (g_lpunk)
{
g_lpunk->Release();
}
CoRevokeClassObject(dwClassFac);
DeleteCriticalSection(&g_CriticalSection);
}
BOOL ParseCommandLine ()
{
BOOL t_Exit = FALSE ;
LPTSTR t_CommandLine = GetCommandLine () ;
if ( t_CommandLine )
{
TCHAR *t_Arg = NULL ;
TCHAR *t_ApplicationArg = NULL ;
t_ApplicationArg = _tcstok ( t_CommandLine , _TEXT ( " \t" ) ) ;
t_Arg = _tcstok ( NULL , _TEXT ( " \t" ) ) ;
if ( t_Arg )
{
if ( _tcsicmp ( t_Arg , _TEXT ( "/RegServer" ) ) == 0 )
{
t_Exit = TRUE ;
ExeRegisterServer();
}
else if ( _tcsicmp ( t_Arg , _TEXT ( "/UnRegServer" ) ) == 0 )
{
t_Exit = TRUE ;
ExeUnregisterServer();
}
else if(_tcsicmp(t_Arg, _TEXT ( "/EMBEDDING" ) ) == 0)
{
// COM called us, so this is the real thing...
t_Exit = FALSE;
}
}
}
return t_Exit ;
}
LONG CALLBACK WindowsMainProc ( HWND a_hWnd , UINT a_message , WPARAM a_wParam , LPARAM a_lParam )
{
long t_rc = 0 ;
switch ( a_message )
{
case WM_CLOSE:
{
s_Exiting = TRUE ;
}
break ;
case WM_DESTROY:
{
PostMessage ( a_hWnd , WM_QUIT , 0 , 0 ) ;
}
break ;
default:
{
t_rc = DefWindowProc ( a_hWnd , a_message , a_wParam , a_lParam ) ;
}
break ;
}
return ( t_rc ) ;
}
HWND WindowsInit ( HINSTANCE a_HInstance )
{
static TCHAR *t_TemplateCode = _TEXT("TemplateCode - View Provider") ;
WNDCLASS t_wc ;
t_wc.style = CS_HREDRAW | CS_VREDRAW ;
t_wc.lpfnWndProc = WindowsMainProc ;
t_wc.cbClsExtra = 0 ;
t_wc.cbWndExtra = 0 ;
t_wc.hInstance = a_HInstance ;
t_wc.hIcon = LoadIcon(NULL, IDI_HAND) ;
t_wc.hCursor = LoadCursor(NULL, IDC_ARROW) ;
t_wc.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1) ;
t_wc.lpszMenuName = NULL ;
t_wc.lpszClassName = t_TemplateCode ;
ATOM t_winClass = RegisterClass ( &t_wc ) ;
HWND t_HWnd = CreateWindow (
t_TemplateCode , // see RegisterClass() call
t_TemplateCode , // text for window title bar
WS_OVERLAPPEDWINDOW , // window style
CW_USEDEFAULT , // default horizontal position
CW_USEDEFAULT , // default vertical position
CW_USEDEFAULT , // default width
CW_USEDEFAULT , // default height
NULL , // overlapped windows have no parent
NULL , // use the window class menu
a_HInstance ,
NULL // pointer not needed
) ;
if (t_HWnd)
{
ShowWindow ( t_HWnd, SW_SHOW ) ;
}
return t_HWnd ;
}
void WindowsStop ( HWND a_HWnd )
{
DestroyWindow ( a_HWnd ) ;
}
HWND WindowsStart ( HINSTANCE a_Handle )
{
HWND t_HWnd = WindowsInit(a_Handle);
return t_HWnd;
}
void WindowsDispatch ()
{
BOOL t_GetMessage ;
MSG t_lpMsg ;
while ( ( t_GetMessage = GetMessage ( & t_lpMsg , NULL , 0 , 0 ) ) == TRUE )
{
TranslateMessage ( & t_lpMsg ) ;
DispatchMessage ( & t_lpMsg ) ;
if ( s_Exiting )
return ;
}
}
int WINAPI WinMain (
HINSTANCE hInstance, // handle to current instance
HINSTANCE hPrevInstance, // handle to previous instance
LPSTR lpCmdLine, // pointer to command line
int nShowCmd // show state of window
)
{
BOOL t_Exit = ParseCommandLine();
if (!t_Exit)
{
// Initialize the COM Library.
HRESULT hr = COMInit();
HWND hWnd = WindowsStart(hInstance);
if (hWnd)
{
DWORD dw = 0;
if (StartupVP(&dw))
{
WindowsDispatch();
ShutdownVP(dw);
}
WindowsStop(hWnd);
}
// Uninitialize the COM Library.
::CoUninitialize() ;
}
return 0 ;
}
//Strings used during self registeration
#define REG_FORMAT2_STR _T("%s%s")
#define REG_FORMAT3_STR _T("%s%s\\%s")
#define VER_IND_STR _T("VersionIndependentProgID")
#define NOT_INTERT_STR _T("NotInsertable")
#define LOCALSRV32_STR _T("LocalServer32")
#define PROGID_STR _T("ProgID")
#define THREADING_MODULE_STR _T("ThreadingModel")
#define APARTMENT_STR _T("Both")
#define CLSID_STR _T("CLSID\\")
#define PROVIDER_NAME_STR _T("Microsoft WBEM View Provider")
#define PROVIDER_STR _T("WBEM.VIEW.PROVIDER")
#define PROVIDER_CVER_STR _T("WBEM.VIEW.PROVIDER\\CurVer")
#define PROVIDER_CLSID_STR _T("WBEM.VIEW.PROVIDER\\CLSID")
#define PROVIDER_VER_CLSID_STR _T("WBEM.VIEW.PROVIDER.0\\CLSID")
#define PROVIDER_VER_STR _T("WBEM.VIEW.PROVIDER.0")
/***************************************************************************
* SetKeyAndValue
*
* Purpose:
* Private helper function for DllRegisterServer that creates
* a key, sets a value, and closes that key.
*
* Parameters:
* pszKey LPTSTR to the ame of the key
* pszSubkey LPTSTR ro the name of a subkey
* pszValue LPTSTR to the value to store
*
* Return Value:
* BOOL TRUE if successful, FALSE otherwise.
***************************************************************************/
BOOL SetKeyAndValue(TCHAR* pszKey, TCHAR* pszSubkey, TCHAR* pszValueName, TCHAR* pszValue)
{
HKEY hKey;
TCHAR szKey[256];
_tcscpy(szKey, HKEYCLASSES);
_tcscat(szKey, pszKey);
if (NULL!=pszSubkey)
{
_tcscat(szKey, _T("\\"));
_tcscat(szKey, pszSubkey);
}
if (ERROR_SUCCESS!=RegCreateKeyEx(HKEY_LOCAL_MACHINE
, szKey, 0, NULL, REG_OPTION_NON_VOLATILE
, KEY_ALL_ACCESS, NULL, &hKey, NULL))
return FALSE;
if (NULL!=pszValue)
{
if (ERROR_SUCCESS != RegSetValueEx(hKey, pszValueName, 0, REG_SZ, (BYTE *)pszValue
, (_tcslen(pszValue)+1)*sizeof(TCHAR)))
return FALSE;
}
RegCloseKey(hKey);
return TRUE;
}
//***************************************************************************
//
// ExeRegisterServer
//
// Purpose: Called when /register is specified on the command line.
//
// Return: NOERROR if registration successful, error otherwise.
//***************************************************************************
STDAPI ExeRegisterServer(void)
{
TCHAR szModule[MAX_PATH + 1];
HINSTANCE hInst = GetModuleHandle(_T("VIEWPROV"));
GetModuleFileName(hInst,(TCHAR*)szModule, MAX_PATH + 1);
TCHAR szProviderClassID[128];
TCHAR szProviderCLSIDClassID[128];
#ifndef UNICODE
wchar_t t_strGUID[128];
if (0 == StringFromGUID2(CLSID_CViewProviderClassFactory, t_strGUID, 128))
{
return SELFREG_E_CLASS;
}
if (0 == WideCharToMultiByte(CP_ACP,
0,
t_strGUID,
-1,
szProviderClassID,
128,
NULL,
NULL))
{
return SELFREG_E_CLASS;
}
#else
if (0 == StringFromGUID2(CLSID_CViewProviderClassFactory, szProviderClassID, 128))
{
return SELFREG_E_CLASS;
}
#endif
_tcscpy(szProviderCLSIDClassID,CLSID_STR);
_tcscat(szProviderCLSIDClassID,szProviderClassID);
//Create entries under CLSID
if (FALSE ==SetKeyAndValue(szProviderCLSIDClassID, NULL, NULL, PROVIDER_NAME_STR))
return SELFREG_E_CLASS;
if (FALSE ==SetKeyAndValue(szProviderCLSIDClassID, PROGID_STR, NULL, PROVIDER_VER_STR))
return SELFREG_E_CLASS;
if (FALSE ==SetKeyAndValue(szProviderCLSIDClassID, VER_IND_STR, NULL, PROVIDER_STR))
return SELFREG_E_CLASS;
if (FALSE ==SetKeyAndValue(szProviderCLSIDClassID, NOT_INTERT_STR, NULL, NULL))
return SELFREG_E_CLASS;
if (FALSE ==SetKeyAndValue(szProviderCLSIDClassID, LOCALSRV32_STR, NULL,szModule))
return SELFREG_E_CLASS;
if (FALSE ==SetKeyAndValue(szProviderCLSIDClassID, LOCALSRV32_STR,THREADING_MODULE_STR, APARTMENT_STR))
return SELFREG_E_CLASS;
return S_OK;
}
//***************************************************************************
//
// ExeUnregisterServer
//
// Purpose: Called when /unregister is specified on the command line.
//
// Return: NOERROR if registration successful, error otherwise.
//***************************************************************************
STDAPI ExeUnregisterServer(void)
{
TCHAR szTemp[128];
TCHAR szProviderClassID[128];
TCHAR szProviderCLSIDClassID[128];
#ifndef UNICODE
wchar_t t_strGUID[128];
if (0 == StringFromGUID2(CLSID_CViewProviderClassFactory, t_strGUID, 128))
{
return SELFREG_E_CLASS;
}
if (0 == WideCharToMultiByte(CP_ACP,
0,
t_strGUID,
-1,
szProviderClassID,
128,
NULL,
NULL))
{
return SELFREG_E_CLASS;
}
#else
if (0 == StringFromGUID2(CLSID_CViewProviderClassFactory, szProviderClassID, 128))
{
return SELFREG_E_CLASS;
}
#endif
HRESULT hr = S_OK;
_tcscpy(szProviderCLSIDClassID,CLSID_STR);
_tcscat(szProviderCLSIDClassID,szProviderClassID);
//Delete ProgID keys
_stprintf(szTemp, REG_FORMAT2_STR, HKEYCLASSES, PROVIDER_CVER_STR);
if (ERROR_SUCCESS != RegDeleteKey(HKEY_LOCAL_MACHINE, szTemp))
{
hr = SELFREG_E_CLASS;
}
_stprintf(szTemp, REG_FORMAT2_STR, HKEYCLASSES, PROVIDER_CLSID_STR);
if (ERROR_SUCCESS != RegDeleteKey(HKEY_LOCAL_MACHINE, szTemp))
{
hr = SELFREG_E_CLASS;
}
_stprintf(szTemp, REG_FORMAT2_STR, HKEYCLASSES, PROVIDER_STR);
if (ERROR_SUCCESS != RegDeleteKey(HKEY_LOCAL_MACHINE, szTemp))
{
hr = SELFREG_E_CLASS;
}
//Delete VersionIndependentProgID keys
_stprintf(szTemp, REG_FORMAT2_STR, HKEYCLASSES, PROVIDER_VER_CLSID_STR);
if (ERROR_SUCCESS != RegDeleteKey(HKEY_LOCAL_MACHINE, szTemp))
{
hr = SELFREG_E_CLASS;
}
_stprintf(szTemp, REG_FORMAT2_STR, HKEYCLASSES, PROVIDER_VER_STR);
if (ERROR_SUCCESS != RegDeleteKey(HKEY_LOCAL_MACHINE, szTemp))
{
hr = SELFREG_E_CLASS;
}
//Delete entries under CLSID
_stprintf(szTemp, REG_FORMAT3_STR, HKEYCLASSES, szProviderCLSIDClassID, PROGID_STR);
if (ERROR_SUCCESS != RegDeleteKey(HKEY_LOCAL_MACHINE, szTemp))
{
hr = SELFREG_E_CLASS;
}
_stprintf(szTemp, REG_FORMAT3_STR, HKEYCLASSES, szProviderCLSIDClassID, VER_IND_STR);
if (ERROR_SUCCESS != RegDeleteKey(HKEY_LOCAL_MACHINE, szTemp))
{
hr = SELFREG_E_CLASS;
}
_stprintf(szTemp, REG_FORMAT3_STR, HKEYCLASSES, szProviderCLSIDClassID, NOT_INTERT_STR);
if (ERROR_SUCCESS != RegDeleteKey(HKEY_LOCAL_MACHINE, szTemp))
{
hr = SELFREG_E_CLASS;
}
_stprintf(szTemp, REG_FORMAT3_STR, HKEYCLASSES, szProviderCLSIDClassID, LOCALSRV32_STR);
if (ERROR_SUCCESS != RegDeleteKey(HKEY_LOCAL_MACHINE, szTemp))
{
hr = SELFREG_E_CLASS;
}
_stprintf(szTemp, REG_FORMAT2_STR, HKEYCLASSES, szProviderCLSIDClassID);
if (ERROR_SUCCESS != RegDeleteKey(HKEY_LOCAL_MACHINE, szTemp))
{
hr = SELFREG_E_CLASS;
}
return hr;
}
/////////////////////////////////////////////////////////////////////////////
HRESULT COMInit()
{
HRESULT hr;
PFNCOINITIALIZESECURITY pfnCoInitializeSecurity = NULL;
PFNCOINITIALIZEEX pfnCoInitializeEx = NULL;
//Get handle to COM library
ghOle32 = LoadLibraryEx(_T("ole32.dll"), NULL, 0);
if(ghOle32 != NULL)
{
//Get ptr to functions CoInitialize and CoInitializeSecurity.
pfnCoInitializeEx = (PFNCOINITIALIZEEX) GetProcAddress(ghOle32,
"CoInitializeEx");
pfnCoInitializeSecurity = (PFNCOINITIALIZESECURITY) GetProcAddress(ghOle32,
"CoInitializeSecurity");
//Initialize COM
if (pfnCoInitializeEx)
{
hr = pfnCoInitializeEx(NULL, COINIT_MULTITHREADED);
}
else
{
hr = CoInitialize(NULL);
}
if(FAILED(hr))
{
FreeLibrary(ghOle32);
ghOle32 = NULL;
return E_FAIL;
}
//Initialize Security
if (pfnCoInitializeSecurity)
{
hr = pfnCoInitializeSecurity(NULL, -1, NULL, NULL,
RPC_C_AUTHN_LEVEL_CONNECT,
RPC_C_IMP_LEVEL_IMPERSONATE,
NULL, EOAC_NONE, 0);
}
if(FAILED(hr))
{
CoUninitialize();
FreeLibrary(ghOle32);
ghOle32 = NULL;
return E_FAIL;
}
}
else
{
return E_FAIL;
}
return S_OK;
}