| 1 | //
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| 2 | // THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
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| 3 | // ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
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| 4 | // THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
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| 5 | // PARTICULAR PURPOSE.
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| 6 | //
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| 7 | // Copyright (c) 2006 Microsoft Corporation. All rights reserved.
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| 8 | //
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| 9 | // Standard dll required functions and class factory implementation.
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| 10 | //
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| 11 | // Modifications (c) 2009-2010 Oracle Corporation
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| 12 | //
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| 13 |
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| 14 | /*******************************************************************************
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| 15 | * Header Files *
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| 16 | *******************************************************************************/
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| 17 | #include <windows.h>
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| 18 |
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| 19 | #include <VBox/VBoxGuestLib.h>
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| 20 |
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| 21 | #include "dll.h"
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| 22 | #include "guid.h"
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| 23 |
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| 24 |
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| 25 | /*******************************************************************************
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| 26 | * Global Variables *
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| 27 | *******************************************************************************/
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| 28 | static LONG g_cRef = 0; /* Global DLL reference count. */
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| 29 | HINSTANCE g_hDllInst = NULL; /* Global DLL hinstance. */
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| 30 |
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| 31 |
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| 32 | HRESULT CClassFactory_CreateInstance(REFCLSID rclsid, REFIID riid, void** ppv)
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| 33 | {
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| 34 | HRESULT hr;
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| 35 | if (CLSID_VBoxCredProvider == rclsid)
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| 36 | {
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| 37 | CClassFactory* pClassFactory = new CClassFactory;
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| 38 | if (pClassFactory)
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| 39 | {
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| 40 | hr = pClassFactory->QueryInterface(riid, ppv);
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| 41 | pClassFactory->Release();
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| 42 | }
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| 43 | else
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| 44 | {
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| 45 | hr = E_OUTOFMEMORY;
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| 46 | }
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| 47 | }
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| 48 | else
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| 49 | {
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| 50 | hr = CLASS_E_CLASSNOTAVAILABLE;
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| 51 | }
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| 52 | return hr;
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| 53 | }
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| 54 |
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| 55 |
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| 56 | BOOL WINAPI DllMain(HINSTANCE hinstDll,
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| 57 | DWORD dwReason,
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| 58 | LPVOID pReserved)
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| 59 | {
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| 60 | UNREFERENCED_PARAMETER(pReserved);
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| 61 |
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| 62 | switch (dwReason)
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| 63 | {
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| 64 | case DLL_PROCESS_ATTACH:
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| 65 |
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| 66 | DisableThreadLibraryCalls(hinstDll);
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| 67 | break;
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| 68 |
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| 69 | case DLL_PROCESS_DETACH:
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| 70 | break;
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| 71 |
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| 72 | case DLL_THREAD_ATTACH:
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| 73 | case DLL_THREAD_DETACH:
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| 74 | break;
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| 75 | }
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| 76 |
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| 77 | g_hDllInst = hinstDll;
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| 78 | return TRUE;
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| 79 | }
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| 80 |
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| 81 |
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| 82 | LONG DllAddRef()
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| 83 | {
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| 84 | return InterlockedIncrement(&g_cRef);
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| 85 | }
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| 86 |
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| 87 |
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| 88 | LONG DllRelease()
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| 89 | {
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| 90 | return InterlockedDecrement(&g_cRef);
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| 91 | }
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| 92 |
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| 93 |
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| 94 | LONG DllGetRefCount()
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| 95 | {
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| 96 | return g_cRef;
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| 97 | }
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| 98 |
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| 99 |
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| 100 | /* DLL entry point. */
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| 101 | STDAPI DllCanUnloadNow()
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| 102 | {
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| 103 | HRESULT hr;
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| 104 |
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| 105 | if (g_cRef > 0)
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| 106 | {
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| 107 | hr = S_FALSE; /* Cocreated objects still exist, don't unload */
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| 108 | }
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| 109 | else
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| 110 | {
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| 111 | hr = S_OK; /* Refcount is zero, ok to unload */
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| 112 | }
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| 113 |
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| 114 | /* Never terminate the runtime! */
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| 115 | return hr;
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| 116 | }
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| 117 |
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| 118 |
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| 119 | STDAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, void** ppv)
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| 120 | {
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| 121 | return CClassFactory_CreateInstance(rclsid, riid, ppv);
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| 122 | }
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| 123 |
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