VirtualBox

source: vbox/trunk/src/VBox/HostDrivers/Support/SUPLibInternal.h@ 53002

Last change on this file since 53002 was 53002, checked in by vboxsync, 10 years ago

VBoxDrv-win.cpp: Keep the error info string from failed VBoxDrv and VBoxDrvStub open operations so userland can give us better messages to work on. Fixeds a couple of odd bugs.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 17.8 KB
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1/* $Id: SUPLibInternal.h 53002 2014-10-08 23:46:15Z vboxsync $ */
2/** @file
3 * VirtualBox Support Library - Internal header.
4 */
5
6/*
7 * Copyright (C) 2006-2013 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#ifndef ___SUPLibInternal_h___
28#define ___SUPLibInternal_h___
29
30#include <VBox/cdefs.h>
31#include <VBox/types.h>
32#include <iprt/stdarg.h>
33
34
35/*******************************************************************************
36* Defined Constants And Macros *
37*******************************************************************************/
38/** @def SUPLIB_DLL_SUFF
39 * The (typical) DLL/DYLIB/SO suffix. */
40#if defined(RT_OS_DARWIN)
41# define SUPLIB_DLL_SUFF ".dylib"
42#elif defined(RT_OS_L4)
43# define SUPLIB_DLL_SUFF ".s.so"
44#elif defined(RT_OS_OS2) || defined(RT_OS_WINDOWS)
45# define SUPLIB_DLL_SUFF ".dll"
46#else
47# define SUPLIB_DLL_SUFF ".so"
48#endif
49
50#ifdef RT_OS_SOLARIS
51/** Number of dummy files to open (2:ip4, 1:ip6, 1:extra) see
52 * @bugref{4650}. */
53# define SUPLIB_FLT_DUMMYFILES 4
54#endif
55
56/** @def SUPLIB_EXE_SUFF
57 * The (typical) executable suffix. */
58#if defined(RT_OS_OS2) || defined(RT_OS_WINDOWS)
59# define SUPLIB_EXE_SUFF ".exe"
60#else
61# define SUPLIB_EXE_SUFF ""
62#endif
63
64/** @def SUP_HARDENED_SUID
65 * Whether we're employing set-user-ID-on-execute in the hardening.
66 */
67#if !defined(RT_OS_OS2) && !defined(RT_OS_WINDOWS) && !defined(RT_OS_L4)
68# define SUP_HARDENED_SUID
69#else
70# undef SUP_HARDENED_SUID
71#endif
72
73#ifdef IN_SUP_HARDENED_R3
74/** @name Make the symbols in SUPR3HardenedStatic different from the VBoxRT ones.
75 * We cannot rely on DECLHIDDEN to make this separation for us since it doesn't
76 * work with all GCC versions. So, we resort to old fashion precompiler hacking.
77 * @{
78 */
79# define supR3HardenedPathAppPrivateNoArch supR3HardenedStaticPathAppPrivateNoArch
80# define supR3HardenedPathAppPrivateArch supR3HardenedStaticPathAppPrivateArch
81# define supR3HardenedPathSharedLibs supR3HardenedStaticPathSharedLibs
82# define supR3HardenedPathAppDocs supR3HardenedStaticPathAppDocs
83# define supR3HardenedPathExecDir supR3HardenedStaticPathExecDir
84# define supR3HardenedPathFilename supR3HardenedStaticPathFilename
85# define supR3HardenedFatalV supR3HardenedStaticFatalV
86# define supR3HardenedFatal supR3HardenedStaticFatal
87# define supR3HardenedFatalMsgV supR3HardenedStaticFatalMsgV
88# define supR3HardenedFatalMsg supR3HardenedStaticFatalMsg
89# define supR3HardenedErrorV supR3HardenedStaticErrorV
90# define supR3HardenedError supR3HardenedStaticError
91# define supR3HardenedOpenLog supR3HardenedStaticOpenLog
92# define supR3HardenedLogV supR3HardenedStaticLogV
93# define supR3HardenedLog supR3HardenedStaticLog
94# define supR3HardenedVerifyAll supR3HardenedStaticVerifyAll
95# define supR3HardenedVerifyFixedDir supR3HardenedStaticVerifyFixedDir
96# define supR3HardenedVerifyFixedFile supR3HardenedStaticVerifyFixedFile
97# define supR3HardenedVerifyDir supR3HardenedStaticVerifyDir
98# define supR3HardenedVerifyFile supR3HardenedStaticVerifyFile
99# define supR3HardenedGetPreInitData supR3HardenedStaticGetPreInitData
100# define supR3HardenedRecvPreInitData supR3HardenedStaticRecvPreInitData
101/** @} */
102#endif /* IN_SUP_HARDENED_R3 */
103
104
105/** @name CRT function mappings (not using CRT on Windows).
106 * @{
107 */
108#if defined(IN_SUP_HARDENED_R3) && defined(RT_OS_WINDOWS)
109# define SUP_HARDENED_NEED_CRT_FUNCTIONS
110DECLHIDDEN(int) suplibHardenedMemComp(void const *pvDst, const void *pvSrc, size_t cbToComp);
111DECLHIDDEN(void *) suplibHardenedMemCopy(void *pvDst, const void *pvSrc, size_t cbToCopy);
112DECLHIDDEN(void *) suplibHardenedMemSet(void *pvDst, int ch, size_t cbToSet);
113DECLHIDDEN(char *) suplibHardenedStrCopy(char *pszDst, const char *pszSrc);
114DECLHIDDEN(size_t) suplibHardenedStrLen(const char *psz);
115DECLHIDDEN(char *) suplibHardenedStrCat(char *pszDst, const char *pszSrc);
116DECLHIDDEN(int) suplibHardenedStrCmp(const char *psz1, const char *psz2);
117DECLHIDDEN(int) suplibHardenedStrNCmp(const char *psz1, const char *psz2, size_t cchMax);
118#else
119# undef SUP_HARDENED_NEED_CRT_FUNCTIONS
120# define suplibHardenedMemComp memcmp
121# define suplibHardenedMemCopy memcpy
122# define suplibHardenedMemSet memset
123# define suplibHardenedStrCopy strcpy
124# define suplibHardenedStrLen strlen
125# define suplibHardenedStrCat strcat
126# define suplibHardenedStrCmp strcmp
127# define suplibHardenedStrNCmp strncmp
128#endif
129DECLNORETURN(void) suplibHardenedExit(RTEXITCODE rcExit);
130DECLHIDDEN(void) suplibHardenedPrintF(const char *pszFormat, ...);
131DECLHIDDEN(void) suplibHardenedPrintFV(const char *pszFormat, va_list va);
132
133/** @} */
134
135/** Debug output macro. */
136#ifdef IN_SUP_HARDENED_R3
137# if defined(DEBUG_bird) && defined(RT_OS_WINDOWS)
138# define SUP_DPRINTF(a) do { supR3HardenedStaticLog a; suplibHardenedPrintF a; } while (0)
139# else
140# define SUP_DPRINTF(a) do { supR3HardenedStaticLog a; } while (0)
141# endif
142#else
143# if defined(DEBUG_bird) && defined(RT_OS_WINDOWS)
144# define SUP_DPRINTF(a) RTLogPrintf a
145# else
146# define SUP_DPRINTF(a) do { } while (0)
147# endif
148#endif
149
150
151/*******************************************************************************
152* Structures and Typedefs *
153*******************************************************************************/
154/**
155 * The type of an installed file.
156 */
157typedef enum SUPINSTFILETYPE
158{
159 kSupIFT_Invalid = 0,
160 kSupIFT_Exe,
161 kSupIFT_Dll,
162 kSupIFT_Rc,
163 kSupIFT_Sys,
164 kSupIFT_Script,
165 kSupIFT_Data,
166 kSupIFT_TestExe,
167 kSupIFT_TestDll,
168 kSupIFT_End
169} SUPINSTFILETYPE;
170
171/**
172 * Installation directory specifier.
173 */
174typedef enum SUPINSTDIR
175{
176 kSupID_Invalid = 0,
177 kSupID_Bin,
178 kSupID_AppBin,
179 kSupID_SharedLib,
180 kSupID_AppPrivArch,
181 kSupID_AppPrivArchComp,
182 kSupID_AppPrivNoArch,
183 kSupID_Testcase,
184 kSupID_End
185} SUPINSTDIR;
186
187/**
188 * Installed file.
189 */
190typedef struct SUPINSTFILE
191{
192 /** File type. */
193 SUPINSTFILETYPE enmType;
194 /** Install directory. */
195 SUPINSTDIR enmDir;
196 /** Optional (true) or mandatory (false. */
197 bool fOptional;
198 /** File name. */
199 const char *pszFile;
200} SUPINSTFILE;
201typedef SUPINSTFILE *PSUPINSTFILE;
202typedef SUPINSTFILE const *PCSUPINSTFILE;
203
204/**
205 * Status data for a verified file.
206 */
207typedef struct SUPVERIFIEDFILE
208{
209 /** The file handle or descriptor. -1 if not open. */
210 intptr_t hFile;
211 /** Whether the file has been validated. */
212 bool fValidated;
213#ifdef RT_OS_WINDOWS
214 /** Whether we've checked the signature of the file. */
215 bool fCheckedSignature;
216#endif
217} SUPVERIFIEDFILE;
218typedef SUPVERIFIEDFILE *PSUPVERIFIEDFILE;
219typedef SUPVERIFIEDFILE const *PCSUPVERIFIEDFILE;
220
221/**
222 * Status data for a verified directory.
223 */
224typedef struct SUPVERIFIEDDIR
225{
226 /** The directory handle or descriptor. -1 if not open. */
227 intptr_t hDir;
228 /** Whether the directory has been validated. */
229 bool fValidated;
230} SUPVERIFIEDDIR;
231typedef SUPVERIFIEDDIR *PSUPVERIFIEDDIR;
232typedef SUPVERIFIEDDIR const *PCSUPVERIFIEDDIR;
233
234
235/**
236 * SUPLib instance data.
237 *
238 * This is data that is passed from the static to the dynamic SUPLib
239 * in a hardened setup.
240 */
241typedef struct SUPLIBDATA
242{
243 /** The device handle. */
244#if defined(RT_OS_WINDOWS)
245 void *hDevice;
246#else
247 int hDevice;
248#endif
249 /** Indicates whether we have unrestricted (true) or restricted access to the
250 * support device. */
251 bool fUnrestricted;
252#if defined(RT_OS_DARWIN)
253 /** The connection to the VBoxSupDrv service. */
254 uintptr_t uConnection;
255#elif defined(RT_OS_LINUX)
256 /** Indicates whether madvise(,,MADV_DONTFORK) works. */
257 bool fSysMadviseWorks;
258#elif defined(RT_OS_SOLARIS)
259 /** Extra dummy file descriptors to prevent growing file-descriptor table on
260 * clean up (see @bugref{4650}). */
261 int ahDummy[SUPLIB_FLT_DUMMYFILES];
262#elif defined(RT_OS_WINDOWS)
263#endif
264} SUPLIBDATA;
265/** Pointer to the pre-init data. */
266typedef SUPLIBDATA *PSUPLIBDATA;
267/** Pointer to const pre-init data. */
268typedef SUPLIBDATA const *PCSUPLIBDATA;
269
270/** The NIL value of SUPLIBDATA::hDevice. */
271#if defined(RT_OS_WINDOWS)
272# define SUP_HDEVICE_NIL NULL
273#else
274# define SUP_HDEVICE_NIL (-1)
275#endif
276
277
278/**
279 * Pre-init data that is handed over from the hardened executable stub.
280 */
281typedef struct SUPPREINITDATA
282{
283 /** Magic value (SUPPREINITDATA_MAGIC). */
284 uint32_t u32Magic;
285 /** The SUPLib instance data. */
286 SUPLIBDATA Data;
287 /** The number of entries in paInstallFiles and paVerifiedFiles. */
288 size_t cInstallFiles;
289 /** g_aSupInstallFiles. */
290 PCSUPINSTFILE paInstallFiles;
291 /** g_aSupVerifiedFiles. */
292 PCSUPVERIFIEDFILE paVerifiedFiles;
293 /** The number of entries in paVerifiedDirs. */
294 size_t cVerifiedDirs;
295 /** g_aSupVerifiedDirs. */
296 PCSUPVERIFIEDDIR paVerifiedDirs;
297 /** Magic value (SUPPREINITDATA_MAGIC). */
298 uint32_t u32EndMagic;
299} SUPPREINITDATA;
300typedef SUPPREINITDATA *PSUPPREINITDATA;
301typedef SUPPREINITDATA const *PCSUPPREINITDATA;
302
303/** Magic value for SUPPREINITDATA::u32Magic and SUPPREINITDATA::u32EndMagic. */
304#define SUPPREINITDATA_MAGIC UINT32_C(0xbeef0001)
305
306/** @copydoc supR3PreInit */
307typedef DECLCALLBACK(int) FNSUPR3PREINIT(PSUPPREINITDATA pPreInitData, uint32_t fFlags);
308/** Pointer to supR3PreInit. */
309typedef FNSUPR3PREINIT *PFNSUPR3PREINIT;
310
311/** The current SUPR3HardenedMain state / location. */
312typedef enum SUPR3HARDENEDMAINSTATE
313{
314 SUPR3HARDENEDMAINSTATE_NOT_YET_CALLED = 0,
315 SUPR3HARDENEDMAINSTATE_WIN_EARLY_INIT_CALLED,
316 SUPR3HARDENEDMAINSTATE_WIN_EARLY_IMPORTS_RESOLVED,
317 SUPR3HARDENEDMAINSTATE_WIN_EARLY_DEVICE_OPENED,
318 SUPR3HARDENEDMAINSTATE_WIN_EP_CALLED,
319 SUPR3HARDENEDMAINSTATE_WIN_IMPORTS_RESOLVED,
320 SUPR3HARDENEDMAINSTATE_WIN_VERSION_INITIALIZED,
321 SUPR3HARDENEDMAINSTATE_WIN_VERIFY_TRUST_READY,
322 SUPR3HARDENEDMAINSTATE_HARDENED_MAIN_CALLED,
323 SUPR3HARDENEDMAINSTATE_INIT_RUNTIME,
324 SUPR3HARDENEDMAINSTATE_GET_TRUSTED_MAIN,
325 SUPR3HARDENEDMAINSTATE_CALLED_TRUSTED_MAIN,
326 SUPR3HARDENEDMAINSTATE_END,
327 SUPR3HARDENEDMAINSTATE_32BIT_HACK = 0x7fffffff
328} SUPR3HARDENEDMAINSTATE;
329
330
331/*******************************************************************************
332* Global Variables *
333*******************************************************************************/
334extern DECLHIDDEN(uint32_t) g_u32Cookie;
335extern DECLHIDDEN(uint32_t) g_u32SessionCookie;
336extern DECLHIDDEN(SUPLIBDATA) g_supLibData;
337extern DECLHIDDEN(uint32_t) g_uSupFakeMode;
338extern DECLHIDDEN(PSUPGLOBALINFOPAGE) g_pSUPGlobalInfoPageR0;
339#ifdef ___SUPDrvIOC_h___
340extern DECLHIDDEN(PSUPQUERYFUNCS) g_pSupFunctions;
341#endif
342extern DECLHIDDEN(SUPR3HARDENEDMAINSTATE) g_enmSupR3HardenedMainState;
343#ifdef RT_OS_WINDOWS
344extern DECLHIDDEN(bool) g_fSupEarlyProcessInit;
345#endif
346
347
348/*******************************************************************************
349* OS Specific Function *
350*******************************************************************************/
351RT_C_DECLS_BEGIN
352int suplibOsInstall(void);
353int suplibOsUninstall(void);
354int suplibOsInit(PSUPLIBDATA pThis, bool fPreInited, bool fUnrestricted, SUPINITOP *penmWhat, PRTERRINFO pErrInfo);
355int suplibOsTerm(PSUPLIBDATA pThis);
356int suplibOsHardenedVerifyInit(void);
357int suplibOsHardenedVerifyTerm(void);
358int suplibOsIOCtl(PSUPLIBDATA pThis, uintptr_t uFunction, void *pvReq, size_t cbReq);
359int suplibOsIOCtlFast(PSUPLIBDATA pThis, uintptr_t uFunction, uintptr_t idCpu);
360int suplibOsPageAlloc(PSUPLIBDATA pThis, size_t cPages, void **ppvPages);
361int suplibOsPageFree(PSUPLIBDATA pThis, void *pvPages, size_t cPages);
362int suplibOsQueryVTxSupported(void);
363
364
365/**
366 * Performs the pre-initialization of the support library.
367 *
368 * This is dynamically resolved and invoked by the static library before it
369 * calls RTR3InitEx and thereby SUPR3Init.
370 *
371 * @returns IPRT status code.
372 * @param pPreInitData The pre init data.
373 * @param fFlags The SUPR3HardenedMain flags.
374 */
375DECLEXPORT(int) supR3PreInit(PSUPPREINITDATA pPreInitData, uint32_t fFlags);
376
377
378/** @copydoc RTPathAppPrivateNoArch */
379DECLHIDDEN(int) supR3HardenedPathAppPrivateNoArch(char *pszPath, size_t cchPath);
380/** @copydoc RTPathAppPrivateArch */
381DECLHIDDEN(int) supR3HardenedPathAppPrivateArch(char *pszPath, size_t cchPath);
382/** @copydoc RTPathSharedLibs */
383DECLHIDDEN(int) supR3HardenedPathSharedLibs(char *pszPath, size_t cchPath);
384/** @copydoc RTPathAppDocs */
385DECLHIDDEN(int) supR3HardenedPathAppDocs(char *pszPath, size_t cchPath);
386/** @copydoc RTPathExecDir */
387DECLHIDDEN(int) supR3HardenedPathExecDir(char *pszPath, size_t cchPath);
388/** @copydoc RTPathFilename */
389DECLHIDDEN(char *) supR3HardenedPathFilename(const char *pszPath);
390
391/**
392 * Display a fatal error and try call TrustedError or quit.
393 */
394DECLHIDDEN(void) supR3HardenedFatalMsgV(const char *pszWhere, SUPINITOP enmWhat, int rc, const char *pszMsgFmt, va_list va);
395
396/**
397 * Display a fatal error and try call TrustedError or quit.
398 */
399DECLHIDDEN(void) supR3HardenedFatalMsg(const char *pszWhere, SUPINITOP enmWhat, int rc, const char *pszMsgFmt, ...);
400
401/**
402 * Display a fatal error and quit.
403 */
404DECLHIDDEN(void) supR3HardenedFatalV(const char *pszFormat, va_list va);
405
406/**
407 * Display a fatal error and quit.
408 */
409DECLHIDDEN(void) supR3HardenedFatal(const char *pszFormat, ...);
410
411/**
412 * Display an error which may or may not be fatal.
413 */
414DECLHIDDEN(int) supR3HardenedErrorV(int rc, bool fFatal, const char *pszFormat, va_list va);
415
416/**
417 * Display an error which may or may not be fatal.
418 */
419DECLHIDDEN(int) supR3HardenedError(int rc, bool fFatal, const char *pszFormat, ...);
420
421/**
422 * Open any startup log file specified in the argument.
423 */
424DECLHIDDEN(void) supR3HardenedOpenLog(int *pcArgs, char **papszArgs);
425
426/**
427 * Write to the startup log file.
428 */
429DECLHIDDEN(void) supR3HardenedLogV(const char *pszFormat, va_list va);
430
431/**
432 * Write to the startup log file.
433 */
434DECLHIDDEN(void) supR3HardenedLog(const char *pszFormat, ...);
435
436
437DECLHIDDEN(int) supR3HardenedVerifyAll(bool fFatal, const char *pszProgName);
438DECLHIDDEN(int) supR3HardenedVerifyFixedDir(SUPINSTDIR enmDir, bool fFatal);
439DECLHIDDEN(int) supR3HardenedVerifyFixedFile(const char *pszFilename, bool fFatal);
440DECLHIDDEN(int) supR3HardenedVerifyDir(const char *pszDirPath, bool fRecursive, bool fCheckFiles, PRTERRINFO pErrInfo);
441DECLHIDDEN(int) supR3HardenedVerifyFile(const char *pszFilename, RTHCUINTPTR hNativeFile, bool fMaybe3rdParty,
442 PRTERRINFO pErrInfo);
443DECLHIDDEN(void) supR3HardenedGetPreInitData(PSUPPREINITDATA pPreInitData);
444DECLHIDDEN(int) supR3HardenedRecvPreInitData(PCSUPPREINITDATA pPreInitData);
445
446#ifdef RT_OS_WINDOWS
447DECLHIDDEN(void) supR3HardenedWinInit(uint32_t fFlags, bool fAvastKludge);
448DECLHIDDEN(void) supR3HardenedWinInitVersion(void);
449DECLHIDDEN(void) supR3HardenedWinInitImports(void);
450# ifdef ___iprt_nt_nt_h___
451DECLHIDDEN(void) supR3HardenedWinGetVeryEarlyImports(uintptr_t uNtDllAddr,
452 PFNNTWAITFORSINGLEOBJECT *ppfnNtWaitForSingleObject,
453 PFNNTSETEVENT *ppfnNtSetEvent);
454# endif
455DECLHIDDEN(void) supR3HardenedWinInitImportsEarly(uintptr_t uNtDllAddr);
456DECLHIDDEN(void) supR3HardenedWinInitSyscalls(bool fReportErrors);
457DECLHIDDEN(PFNRT) supR3HardenedWinGetRealDllSymbol(const char *pszDll, const char *pszProcedure);
458DECLHIDDEN(void) supR3HardenedWinEnableThreadCreation(void);
459DECLHIDDEN(void) supR3HardenedWinResolveVerifyTrustApiAndHookThreadCreation(const char *pszProgName);
460DECLHIDDEN(void) supR3HardenedWinFlushLoaderCache();
461DECLHIDDEN(bool) supR3HardenedWinIsReSpawnNeeded(int iWhich, int cArgs, char **papszArgs);
462DECLHIDDEN(int) supR3HardenedWinReSpawn(int iWhich);
463# ifdef _WINDEF_
464DECLHIDDEN(void) supR3HardenedWinCreateParentWatcherThread(HMODULE hVBoxRT);
465# endif
466DECLHIDDEN(void *) supR3HardenedWinLoadLibrary(const char *pszName, bool fSystem32Only);
467extern RTUTF16 g_wszSupLibHardenedExePath[1024];
468# ifdef RTPATH_MAX
469extern char g_szSupLibHardenedExePath[RTPATH_MAX];
470# endif
471DECLHIDDEN(void) supR3HardenedWinCompactHeaps(void);
472DECLHIDDEN(void) supR3HardenedMainOpenDevice(void);
473DECLHIDDEN(char *) supR3HardenedWinReadErrorInfoDevice(char *pszErrorInfo, size_t cbErrorInfo, const char *pszPrefix);
474DECLHIDDEN(void) supR3HardenedWinReportErrorToParent(const char *pszWhere, SUPINITOP enmWhat, int rc,
475 const char *pszFormat, va_list va);
476#endif
477
478SUPR3DECL(int) supR3PageLock(void *pvStart, size_t cPages, PSUPPAGE paPages);
479SUPR3DECL(int) supR3PageUnlock(void *pvStart);
480
481RT_C_DECLS_END
482
483
484#endif
485
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