| 1 | /* $Id: VBoxSupLib-win.cpp 69500 2017-10-28 15:14:05Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * IPRT - VBoxSupLib.dll, Windows.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2006-2017 Oracle Corporation
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | *
|
|---|
| 17 | * The contents of this file may alternatively be used under the terms
|
|---|
| 18 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
|---|
| 20 | * VirtualBox OSE distribution, in which case the provisions of the
|
|---|
| 21 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 22 | *
|
|---|
| 23 | * You may elect to license modified versions of this file under the
|
|---|
| 24 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 25 | */
|
|---|
| 26 |
|
|---|
| 27 |
|
|---|
| 28 | /*********************************************************************************************************************************
|
|---|
| 29 | * Header Files *
|
|---|
| 30 | *********************************************************************************************************************************/
|
|---|
| 31 | #include <iprt/nt/nt-and-windows.h>
|
|---|
| 32 |
|
|---|
| 33 | #include <iprt/path.h>
|
|---|
| 34 |
|
|---|
| 35 |
|
|---|
| 36 | /**
|
|---|
| 37 | * The Dll main entry point.
|
|---|
| 38 | * @remarks The dllexport is for forcing the linker to generate an import
|
|---|
| 39 | * library, so the build system doesn't get confused.
|
|---|
| 40 | */
|
|---|
| 41 | extern "C" __declspec(dllexport)
|
|---|
| 42 | BOOL __stdcall DllMainEntrypoint(HANDLE hModule, DWORD dwReason, PVOID pvReserved)
|
|---|
| 43 | {
|
|---|
| 44 | RT_NOREF1(pvReserved);
|
|---|
| 45 |
|
|---|
| 46 | switch (dwReason)
|
|---|
| 47 | {
|
|---|
| 48 | /*
|
|---|
| 49 | * Make sure the DLL isn't ever unloaded.
|
|---|
| 50 | */
|
|---|
| 51 | case DLL_PROCESS_ATTACH:
|
|---|
| 52 | {
|
|---|
| 53 | WCHAR wszName[RTPATH_MAX];
|
|---|
| 54 | SetLastError(NO_ERROR);
|
|---|
| 55 | if ( GetModuleFileNameW((HMODULE)hModule, wszName, RT_ELEMENTS(wszName)) > 0
|
|---|
| 56 | && RtlGetLastWin32Error() == NO_ERROR)
|
|---|
| 57 | {
|
|---|
| 58 | int cExtraLoads = 2;
|
|---|
| 59 | while (cExtraLoads-- > 0)
|
|---|
| 60 | LoadLibraryW(wszName);
|
|---|
| 61 | }
|
|---|
| 62 | break;
|
|---|
| 63 | }
|
|---|
| 64 |
|
|---|
| 65 | case DLL_THREAD_ATTACH:
|
|---|
| 66 | {
|
|---|
| 67 | #ifdef VBOX_WITH_HARDENING
|
|---|
| 68 | # ifndef VBOX_WITHOUT_DEBUGGER_CHECKS
|
|---|
| 69 | /*
|
|---|
| 70 | * Anti debugging hack that prevents most debug notifications from
|
|---|
| 71 | * ending up in the debugger.
|
|---|
| 72 | */
|
|---|
| 73 | NTSTATUS rcNt = NtSetInformationThread(GetCurrentThread(), ThreadHideFromDebugger, NULL, 0);
|
|---|
| 74 | if (!NT_SUCCESS(rcNt))
|
|---|
| 75 | {
|
|---|
| 76 | __debugbreak();
|
|---|
| 77 | return FALSE;
|
|---|
| 78 | }
|
|---|
| 79 | # endif
|
|---|
| 80 | #endif
|
|---|
| 81 | break;
|
|---|
| 82 | }
|
|---|
| 83 |
|
|---|
| 84 | case DLL_THREAD_DETACH:
|
|---|
| 85 | /* Nothing to do. */
|
|---|
| 86 | break;
|
|---|
| 87 |
|
|---|
| 88 | case DLL_PROCESS_DETACH:
|
|---|
| 89 | /* Nothing to do. */
|
|---|
| 90 | break;
|
|---|
| 91 |
|
|---|
| 92 | default:
|
|---|
| 93 | /* ignore */
|
|---|
| 94 | break;
|
|---|
| 95 | }
|
|---|
| 96 | return TRUE;
|
|---|
| 97 | }
|
|---|
| 98 |
|
|---|
