| 1 | /* $Id: init-win.cpp 46593 2013-06-17 14:32:51Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - Init Ring-3, Windows Specific Code.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2013 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 |
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| 28 | /*******************************************************************************
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| 29 | * Header Files *
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| 30 | *******************************************************************************/
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| 31 | #define LOG_GROUP RTLOGGROUP_DEFAULT
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| 32 | #include <Windows.h>
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| 33 | #ifndef LOAD_LIBRARY_SEARCH_APPLICATION_DIR
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| 34 | # define LOAD_LIBRARY_SEARCH_APPLICATION_DIR 0x200
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| 35 | # define LOAD_LIBRARY_SEARCH_SYSTEM32 0x800
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| 36 | #endif
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| 37 |
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| 38 | #include "internal/iprt.h"
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| 39 | #include <iprt/initterm.h>
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| 40 | #include <iprt/err.h>
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| 41 | #include "../init.h"
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| 42 |
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| 43 |
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| 44 | /*******************************************************************************
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| 45 | * Global Variables *
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| 46 | *******************************************************************************/
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| 47 | /** The native kernel32.dll handle. */
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| 48 | DECLHIDDEN(HMODULE) g_hModKernel32 = NULL;
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| 49 | /** The native ntdll.dll handle. */
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| 50 | DECLHIDDEN(HMODULE) g_hModNtDll = NULL;
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| 51 | /** Windows DLL loader protection level. */
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| 52 | DECLHIDDEN(RTR3WINLDRPROT) g_enmWinLdrProt = RTR3WINLDRPROT_NONE;
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| 53 |
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| 54 |
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| 55 | DECLHIDDEN(int) rtR3InitNativeObtrusiveWorker(void)
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| 56 | {
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| 57 | /*
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| 58 | * Disable error popups.
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| 59 | */
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| 60 | UINT fOldErrMode = SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOOPENFILEERRORBOX);
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| 61 | SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOOPENFILEERRORBOX | fOldErrMode);
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| 62 |
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| 63 | /*
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| 64 | * Restrict DLL searching for the process on windows versions which allow
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| 65 | * us to do so.
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| 66 | * - The first trick works on XP SP1+ and disables the searching of the
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| 67 | * current directory.
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| 68 | * - The second trick is W7 w/ KB2533623 and W8+, it restrict the DLL
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| 69 | * searching to the application directory and the System32 directory.
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| 70 | */
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| 71 | int rc = VINF_SUCCESS;
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| 72 |
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| 73 | typedef BOOL (WINAPI *PFNSETDLLDIRECTORY)(LPCWSTR);
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| 74 | PFNSETDLLDIRECTORY pfnSetDllDir = (PFNSETDLLDIRECTORY)GetProcAddress(g_hModKernel32, "SetDllDirectoryW");
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| 75 | if (pfnSetDllDir)
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| 76 | {
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| 77 | if (pfnSetDllDir(L""))
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| 78 | g_enmWinLdrProt = RTR3WINLDRPROT_NO_CWD;
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| 79 | else
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| 80 | rc = VERR_INTERNAL_ERROR_3;
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| 81 | }
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| 82 |
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| 83 | typedef BOOL (WINAPI *PFNSETDEFAULTDLLDIRECTORIES)(DWORD);
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| 84 | PFNSETDEFAULTDLLDIRECTORIES pfnSetDefDllDirs;
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| 85 | pfnSetDefDllDirs = (PFNSETDEFAULTDLLDIRECTORIES)GetProcAddress(g_hModKernel32, "SetDefaultDllDirectories");
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| 86 | if (pfnSetDefDllDirs)
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| 87 | {
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| 88 | if (pfnSetDefDllDirs(LOAD_LIBRARY_SEARCH_APPLICATION_DIR | LOAD_LIBRARY_SEARCH_SYSTEM32))
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| 89 | g_enmWinLdrProt = RTR3WINLDRPROT_SAFE;
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| 90 | else if (RT_SUCCESS(rc))
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| 91 | rc = VERR_INTERNAL_ERROR_4;
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| 92 | }
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| 93 |
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| 94 | return rc;
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| 95 | }
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| 96 |
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| 97 |
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| 98 | DECLHIDDEN(int) rtR3InitNativeFirst(uint32_t fFlags)
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| 99 | {
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| 100 | /*
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| 101 | * Make sure we've got the handles of the two main Windows NT dlls.
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| 102 | */
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| 103 | g_hModKernel32 = GetModuleHandleW(L"kernel32.dll");
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| 104 | if (g_hModKernel32 == NULL)
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| 105 | return VERR_INTERNAL_ERROR_2;
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| 106 | g_hModNtDll = GetModuleHandleW(L"ntdll.dll");
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| 107 | if (g_hModNtDll == NULL)
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| 108 | return VERR_INTERNAL_ERROR_2;
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| 109 |
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| 110 | int rc = VINF_SUCCESS;
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| 111 | if (!(fFlags & RTR3INIT_FLAGS_UNOBTRUSIVE))
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| 112 | rc = rtR3InitNativeObtrusiveWorker();
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| 113 |
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| 114 | return rc;
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| 115 | }
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| 116 |
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| 117 |
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| 118 | DECLHIDDEN(void) rtR3InitNativeObtrusive(void)
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| 119 | {
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| 120 | rtR3InitNativeObtrusiveWorker();
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| 121 | }
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| 122 |
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| 123 |
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| 124 | DECLHIDDEN(int) rtR3InitNativeFinal(uint32_t fFlags)
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| 125 | {
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| 126 | /* Nothing to do here. */
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| 127 | return VINF_SUCCESS;
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| 128 | }
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| 129 |
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