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296 lines
7.4 KiB
296 lines
7.4 KiB
//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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//
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// Copyright (C) Microsoft Corporation, 1997 - 1999
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//
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// File: dll.cpp
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//
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// Core entry points for the DLL
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//
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//--------------------------------------------------------------------------
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#include "pch.h"
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#pragma hdrstop
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#define INITGUID
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#include <initguid.h>
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#include "iids.h"
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/*----------------------------------------------------------------------------
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/ Globals
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/----------------------------------------------------------------------------*/
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HINSTANCE g_hInstance = NULL;
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HINSTANCE g_hAclEditDll = NULL;
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DWORD g_tls = 0xffffffffL;
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/*-----------------------------------------------------------------------------
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/ DllMain
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/ -------
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/ Main entry point. We are passed reason codes and assored other
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/ information when loaded or closed down.
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/
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/ In:
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/ hInstance = our instance handle
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/ dwReason = reason code
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/ pReserved = depends on the reason code.
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/
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/ Out:
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/ -
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/----------------------------------------------------------------------------*/
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STDAPI_(BOOL)
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DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID /*pReserved*/)
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{
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switch (dwReason)
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{
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case DLL_PROCESS_ATTACH:
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g_hInstance = hInstance;
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g_tls = TlsAlloc();
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DebugProcessAttach();
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TraceSetMaskFromCLSID(CLSID_DsSecurity);
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#ifndef DEBUG
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DisableThreadLibraryCalls(hInstance);
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#endif
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break;
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case DLL_PROCESS_DETACH:
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SchemaCache_Destroy();
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if (g_hAclEditDll)
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FreeLibrary(g_hAclEditDll);
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TlsFree(g_tls);
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DebugProcessDetach();
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break;
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case DLL_THREAD_DETACH:
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DebugThreadDetach();
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break;
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}
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return TRUE;
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}
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/*-----------------------------------------------------------------------------
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/ DllCanUnloadNow
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/ ---------------
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/ Called by the outside world to determine if our DLL can be unloaded. If we
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/ have any objects in existance then we must not unload.
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/
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/ In:
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/ -
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/ Out:
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/ BOOL inidicate unload state.
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/----------------------------------------------------------------------------*/
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STDAPI
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DllCanUnloadNow(void)
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{
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return GLOBAL_REFCOUNT ? S_FALSE : S_OK;
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}
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/*-----------------------------------------------------------------------------
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/ DllGetClassObject
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/ -----------------
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/ Given a class ID and an interface ID, return the relevant object. This used
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/ by the outside world to access the objects contained here in.
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/
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/ In:
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/ rCLISD = class ID required
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/ riid = interface within that class required
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/ ppv -> receives the newly created object.
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/
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/ Out:
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/ -
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/----------------------------------------------------------------------------*/
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STDAPI
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DllGetClassObject(REFCLSID rCLSID, REFIID riid, LPVOID *ppv)
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{
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HRESULT hr;
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CDsSecurityClassFactory *pClassFactory;
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TraceEnter(TRACE_CORE, "DllGetClassObject");
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TraceGUID("Object requested", rCLSID);
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TraceGUID("Interface requested", riid);
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*ppv = NULL;
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if (!IsEqualIID(rCLSID, CLSID_DsSecurity))
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ExitGracefully(hr, CLASS_E_CLASSNOTAVAILABLE, "CLSID not supported");
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pClassFactory = new CDsSecurityClassFactory;
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if (!pClassFactory)
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ExitGracefully(hr, E_OUTOFMEMORY, "Failed to create class factory");
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hr = pClassFactory->QueryInterface(riid, ppv);
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if (FAILED(hr))
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delete pClassFactory;
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exit_gracefully:
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TraceLeaveResult(hr);
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}
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/*-----------------------------------------------------------------------------
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/ WaitOnThread
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/ -----------------
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/ If a thread is running (if the handle is non-NULL) wait for it to complete.
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/ Then set the handle to NULL.
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/
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/ In:
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/ phThread = address of thread handle
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/
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/ Out:
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/ Result of WaitForSingleObject, or zero.
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/----------------------------------------------------------------------------*/
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DWORD
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WaitOnThread(HANDLE *phThread)
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{
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DWORD dwResult = 0;
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if (phThread != NULL && *phThread != NULL)
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{
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HCURSOR hcurPrevious = SetCursor(LoadCursor(NULL, IDC_WAIT));
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SetThreadPriority(*phThread, THREAD_PRIORITY_HIGHEST);
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dwResult = WaitForSingleObject(*phThread, INFINITE);
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CloseHandle(*phThread);
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*phThread = NULL;
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SetCursor(hcurPrevious);
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}
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return dwResult;
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}
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/*-----------------------------------------------------------------------------
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/ Thread Local Storage helpers
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/----------------------------------------------------------------------------*/
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/*-----------------------------------------------------------------------------
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/ ThreadCoInitialize
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/ ------------------
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/ There is some thread local storage that indicates if we have called
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/ CoInitialize. If CoInitialize has not yet been called, call it now.
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/ Otherwise, do nothing.
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/
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/ In:
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/ -
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/ Out:
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/ HRESULT
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/----------------------------------------------------------------------------*/
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HRESULT
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ThreadCoInitialize(void)
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{
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HRESULT hr = S_OK;
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TraceEnter(TRACE_CORE, "ThreadCoInitialize");
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if (!TlsGetValue(g_tls))
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{
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TraceMsg("Calling CoInitialize");
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hr = CoInitialize(NULL);
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TlsSetValue(g_tls, (LPVOID)SUCCEEDED(hr));
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}
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TraceLeaveResult(hr);
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}
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/*-----------------------------------------------------------------------------
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/ ThreadCoUninitialize
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/ ------------------
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/ There is some thread local storage that indicates if we have called
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/ CoInitialize. If CoInitialize has been called, call CoUninitialize now.
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/ Otherwise, do nothing.
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/
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/ In:
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/ -
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/ Out:
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/ HRESULT
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/----------------------------------------------------------------------------*/
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void
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ThreadCoUninitialize(void)
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{
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TraceEnter(TRACE_CORE, "ThreadCoUninitialize");
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if (TlsGetValue(g_tls))
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{
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TraceMsg("Calling CoUninitialize");
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CoUninitialize();
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TlsSetValue(g_tls, NULL);
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}
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TraceLeaveVoid();
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}
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//
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// Wrappers for delay-loading aclui.dll
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//
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char const c_szCreateSecurityPage[] = "CreateSecurityPage";
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char const c_szEditSecurity[] = "EditSecurity";
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typedef HPROPSHEETPAGE (WINAPI *PFN_CREATESECPAGE)(LPSECURITYINFO);
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typedef BOOL (WINAPI *PFN_EDITSECURITY)(HWND, LPSECURITYINFO);
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HRESULT
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_CreateSecurityPage(LPSECURITYINFO pSI, HPROPSHEETPAGE *phPage)
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{
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HRESULT hr = E_FAIL;
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if (NULL == g_hAclEditDll)
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g_hAclEditDll = LoadLibrary(c_szAclUI);
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if (g_hAclEditDll)
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{
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static PFN_CREATESECPAGE s_pfnCreateSecPage = NULL;
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if (NULL == s_pfnCreateSecPage)
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s_pfnCreateSecPage = (PFN_CREATESECPAGE)GetProcAddress(g_hAclEditDll, c_szCreateSecurityPage);
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if (s_pfnCreateSecPage)
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{
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hr = S_OK;
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*phPage = (*s_pfnCreateSecPage)(pSI);
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if (NULL == *phPage)
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hr = E_OUTOFMEMORY;
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}
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}
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return hr;
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}
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HRESULT
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_EditSecurity(HWND hwndOwner, LPSECURITYINFO pSI)
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{
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HRESULT hr = E_FAIL;
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if (NULL == g_hAclEditDll)
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g_hAclEditDll = LoadLibrary(c_szAclUI);
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if (g_hAclEditDll)
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{
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static PFN_EDITSECURITY s_pfnEditSecurity = NULL;
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if (NULL == s_pfnEditSecurity)
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s_pfnEditSecurity = (PFN_EDITSECURITY)GetProcAddress(g_hAclEditDll, c_szEditSecurity);
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if (s_pfnEditSecurity)
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{
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hr = S_OK;
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(*s_pfnEditSecurity)(hwndOwner, pSI);
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}
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}
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return hr;
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}
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