1 files changed, 108 insertions, 0 deletions
diff --git a/src/VBox/HostDrivers/Support/win/VBoxSupLib-win.cpp b/src/VBox/HostDrivers/Support/win/VBoxSupLib-win.cpp
new file mode 100644
index 00000000..f50cf9c5
--- /dev/null
+++ b/src/VBox/HostDrivers/Support/win/VBoxSupLib-win.cpp
@@ -0,0 +1,108 @@
+/* $Id: VBoxSupLib-win.cpp $ */
+/** @file
+ * IPRT - VBoxSupLib.dll, Windows.
+ */
+
+/*
+ * Copyright (C) 2006-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#include <iprt/nt/nt-and-windows.h>
+
+#include <iprt/path.h>
+
+
+/**
+ * The Dll main entry point.
+ * @remarks The dllexport is for forcing the linker to generate an import
+ *          library, so the build system doesn't get confused.
+ */
+extern "C" __declspec(dllexport)
+BOOL __stdcall DllMainEntrypoint(HANDLE hModule, DWORD dwReason, PVOID pvReserved)
+{
+    RT_NOREF1(pvReserved);
+
+    switch (dwReason)
+    {
+        /*
+         * Make sure the DLL isn't ever unloaded.
+         */
+        case DLL_PROCESS_ATTACH:
+        {
+            WCHAR wszName[RTPATH_MAX];
+            SetLastError(NO_ERROR);
+            if (   GetModuleFileNameW((HMODULE)hModule, wszName, RT_ELEMENTS(wszName)) > 0
+                && RtlGetLastWin32Error() == NO_ERROR)
+            {
+                int cExtraLoads = 2;
+                while (cExtraLoads-- > 0)
+                    LoadLibraryW(wszName);
+            }
+            break;
+        }
+
+        case DLL_THREAD_ATTACH:
+        {
+#ifdef VBOX_WITH_HARDENING
+# ifndef VBOX_WITHOUT_DEBUGGER_CHECKS
+            /*
+             * Anti debugging hack that prevents most debug notifications from
+             * ending up in the debugger.
+             */
+            NTSTATUS rcNt = NtSetInformationThread(GetCurrentThread(), ThreadHideFromDebugger, NULL, 0);
+            if (!NT_SUCCESS(rcNt))
+            {
+                __debugbreak();
+                return FALSE;
+            }
+# endif
+#endif
+            break;
+        }
+
+        case DLL_THREAD_DETACH:
+            /* Nothing to do. */
+            break;
+
+        case DLL_PROCESS_DETACH:
+            /* Nothing to do. */
+            break;
+
+        default:
+            /* ignore */
+            break;
+    }
+    return TRUE;
+}
+