SUPLib.cpp@ 19257

Last change on this file since 19257 was 19257, checked in by vboxsync, 16 years ago
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1	/* $Id: SUPLib.cpp 19257 2009-04-29 11:51:55Z vboxsync $ */
2	/** @file
3	* VirtualBox Support Library - Common code.
4	*/
5
6	/*
7	* Copyright (C) 2006-2007 Sun Microsystems, Inc.
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	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
27	* Clara, CA 95054 USA or visit http://www.sun.com if you need
28	* additional information or have any questions.
29	*/
30
31	/** @page pg_sup SUP - The Support Library
32	*
33	* The support library is responsible for providing facilities to load
34	* VMM Host Ring-0 code, to call Host VMM Ring-0 code from Ring-3 Host
35	* code, to pin down physical memory, and more.
36	*
37	* The VMM Host Ring-0 code can be combined in the support driver if
38	* permitted by kernel module license policies. If it is not combined
39	* it will be externalized in a .r0 module that will be loaded using
40	* the IPRT loader.
41	*
42	* The Ring-0 calling is done thru a generic SUP interface which will
43	* tranfer an argument set and call a predefined entry point in the Host
44	* VMM Ring-0 code.
45	*
46	* See @ref grp_sup "SUP - Support APIs" for API details.
47	*/
48
49	/*******************************************************************************
50	* Header Files *
51	*******************************************************************************/
52	#define LOG_GROUP LOG_GROUP_SUP
53	#include <VBox/sup.h>
54	#include <VBox/err.h>
55	#include <VBox/param.h>
56	#include <VBox/vmm.h>
57	#include <VBox/log.h>
58	#include <VBox/x86.h>
59
60	#include <iprt/assert.h>
61	#include <iprt/alloc.h>
62	#include <iprt/alloca.h>
63	#include <iprt/ldr.h>
64	#include <iprt/asm.h>
65	#include <iprt/mp.h>
66	#include <iprt/cpuset.h>
67	#include <iprt/thread.h>
68	#include <iprt/process.h>
69	#include <iprt/path.h>
70	#include <iprt/string.h>
71	#include <iprt/env.h>
72	#include <iprt/rand.h>
73
74	#include "SUPLibInternal.h"
75	#include "SUPDrvIOC.h"
76
77
78	/*******************************************************************************
79	* Defined Constants And Macros *
80	*******************************************************************************/
81	/** R0 VMM module name. */
82	#define VMMR0_NAME "VMMR0"
83
84
85	/*******************************************************************************
86	* Structures and Typedefs *
87	*******************************************************************************/
88	typedef DECLCALLBACK(int) FNCALLVMMR0(PVMR0 pVMR0, unsigned uOperation, void *pvArg);
89	typedef FNCALLVMMR0 *PFNCALLVMMR0;
90
91
92	/*******************************************************************************
93	* Global Variables *
94	*******************************************************************************/
95	/** Init counter. */
96	static uint32_t g_cInits = 0;
97	/** Whether we've been preinitied. */
98	static bool g_fPreInited = false;
99	/** The SUPLib instance data.
100	* Well, at least parts of it, specificly the parts that are being handed over
101	* via the pre-init mechanism from the hardened executable stub. */
102	static SUPLIBDATA g_supLibData =
103	{
104	NIL_RTFILE
105	#if defined(RT_OS_DARWIN)
106	, NULL
107	#elif defined(RT_OS_LINUX)
108	, false
109	#endif
110	};
111
112	/** Pointer to the Global Information Page.
113	*
114	* This pointer is valid as long as SUPLib has a open session. Anyone using
115	* the page must treat this pointer as higly volatile and not trust it beyond
116	* one transaction.
117	*
118	* @todo This will probably deserve it's own session or some other good solution...
119	*/
120	DECLEXPORT(PSUPGLOBALINFOPAGE) g_pSUPGlobalInfoPage;
121	/** Address of the ring-0 mapping of the GIP. */
122	static PSUPGLOBALINFOPAGE g_pSUPGlobalInfoPageR0;
123	/** The physical address of the GIP. */
124	static RTHCPHYS g_HCPhysSUPGlobalInfoPage = NIL_RTHCPHYS;
125
126	/** The negotiated cookie. */
127	uint32_t g_u32Cookie = 0;
128	/** The negotiated session cookie. */
129	uint32_t g_u32SessionCookie;
130	/** Session handle. */
131	PSUPDRVSESSION g_pSession;
132	/** R0 SUP Functions used for resolving referenced to the SUPR0 module. */
133	static PSUPQUERYFUNCS g_pFunctions;
134
135	/** VMMR0 Load Address. */
136	static RTR0PTR g_pvVMMR0 = NIL_RTR0PTR;
137	/** PAGE_ALLOC_EX sans kernel mapping support indicator. */
138	static bool g_fSupportsPageAllocNoKernel = true;
139	/** Fake mode indicator. (~0 at first, 0 or 1 after first test) */
140	static uint32_t g_u32FakeMode = ~0;
141
142
143	/*******************************************************************************
144	* Internal Functions *
145	*******************************************************************************/
146	static int supInitFake(PSUPDRVSESSION *ppSession);
147	static int supLoadModule(const char pszFilename, const char pszModule, const char pszSrvReqHandler, void *ppvImageBase);
148	static DECLCALLBACK(int) supLoadModuleResolveImport(RTLDRMOD hLdrMod, const char pszModule, const char pszSymbol, unsigned uSymbol, RTUINTPTR pValue, void pvUser);
149
150
151	SUPR3DECL(int) SUPInstall(void)
152	{
153	return suplibOsInstall();
154	}
155
156
157	SUPR3DECL(int) SUPUninstall(void)
158	{
159	return suplibOsUninstall();
160	}
161
162
163	DECLEXPORT(int) supR3PreInit(PSUPPREINITDATA pPreInitData, uint32_t fFlags)
164	{
165	/*
166	* The caller is kind of trustworthy, just perform some basic checks.
167	*
168	* Note! Do not do any fancy stuff here because IPRT has NOT been
169	* initialized at this point.
170	*/
171	if (!VALID_PTR(pPreInitData))
172	return VERR_INVALID_POINTER;
173	if (g_fPreInited \|\| g_cInits > 0)
174	return VERR_WRONG_ORDER;
175
176	if ( pPreInitData->u32Magic != SUPPREINITDATA_MAGIC
177	\|\| pPreInitData->u32EndMagic != SUPPREINITDATA_MAGIC)
178	return VERR_INVALID_MAGIC;
179	if ( !(fFlags & SUPSECMAIN_FLAGS_DONT_OPEN_DEV)
180	&& pPreInitData->Data.hDevice == NIL_RTFILE)
181	return VERR_INVALID_HANDLE;
182	if ( (fFlags & SUPSECMAIN_FLAGS_DONT_OPEN_DEV)
183	&& pPreInitData->Data.hDevice != NIL_RTFILE)
184	return VERR_INVALID_PARAMETER;
185
186	/*
187	* Hand out the data.
188	*/
189	int rc = supR3HardenedRecvPreInitData(pPreInitData);
190	if (RT_FAILURE(rc))
191	return rc;
192
193	/** @todo This may need some small restructuring later, it doesn't quite work with a root service flag... */
194	if (!(fFlags & SUPSECMAIN_FLAGS_DONT_OPEN_DEV))
195	{
196	g_supLibData = pPreInitData->Data;
197	g_fPreInited = true;
198	}
199
200	return VINF_SUCCESS;
201	}
202
203
204	SUPR3DECL(int) SUPR3Init(PSUPDRVSESSION *ppSession)
205	{
206	/*
207	* Perform some sanity checks.
208	* (Got some trouble with compile time member alignment assertions.)
209	*/
210	Assert(!(RT_OFFSETOF(SUPGLOBALINFOPAGE, u64NanoTSLastUpdateHz) & 0x7));
211	Assert(!(RT_OFFSETOF(SUPGLOBALINFOPAGE, aCPUs) & 0x1f));
212	Assert(!(RT_OFFSETOF(SUPGLOBALINFOPAGE, aCPUs[1]) & 0x1f));
213	Assert(!(RT_OFFSETOF(SUPGLOBALINFOPAGE, aCPUs[0].u64NanoTS) & 0x7));
214	Assert(!(RT_OFFSETOF(SUPGLOBALINFOPAGE, aCPUs[0].u64TSC) & 0x7));
215	Assert(!(RT_OFFSETOF(SUPGLOBALINFOPAGE, aCPUs[0].u64CpuHz) & 0x7));
216
217	/*
218	* Check if already initialized.
219	*/
220	if (ppSession)
221	*ppSession = g_pSession;
222	if (g_cInits++ > 0)
223	return VINF_SUCCESS;
224
225	/*
226	* Check for fake mode.
227	*
228	* Fake mode is used when we're doing smoke testing and debugging.
229	* It's also useful on platforms where we haven't root access or which
230	* we haven't ported the support driver to.
231	*/
232	if (g_u32FakeMode == ~0U)
233	{
234	const char *psz = RTEnvGet("VBOX_SUPLIB_FAKE");
235	if (psz && !strcmp(psz, "fake"))
236	ASMAtomicCmpXchgU32(&g_u32FakeMode, 1, ~0U);
237	else
238	ASMAtomicCmpXchgU32(&g_u32FakeMode, 0, ~0U);
239	}
240	if (RT_UNLIKELY(g_u32FakeMode))
241	return supInitFake(ppSession);
242
243	/*
244	* Open the support driver.
245	*/
246	int rc = suplibOsInit(&g_supLibData, g_fPreInited);
247	if (RT_SUCCESS(rc))
248	{
249	/*
250	* Negotiate the cookie.
251	*/
252	SUPCOOKIE CookieReq;
253	memset(&CookieReq, 0xff, sizeof(CookieReq));
254	CookieReq.Hdr.u32Cookie = SUPCOOKIE_INITIAL_COOKIE;
255	CookieReq.Hdr.u32SessionCookie = RTRandU32();
256	CookieReq.Hdr.cbIn = SUP_IOCTL_COOKIE_SIZE_IN;
257	CookieReq.Hdr.cbOut = SUP_IOCTL_COOKIE_SIZE_OUT;
258	CookieReq.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
259	CookieReq.Hdr.rc = VERR_INTERNAL_ERROR;
260	strcpy(CookieReq.u.In.szMagic, SUPCOOKIE_MAGIC);
261	CookieReq.u.In.u32ReqVersion = SUPDRV_IOC_VERSION;
262	const uint32_t MinVersion = (SUPDRV_IOC_VERSION & 0xffff0000) == 0x000a0000
263	? 0x000a0009
264	: SUPDRV_IOC_VERSION & 0xffff0000;
265	CookieReq.u.In.u32MinVersion = MinVersion;
266	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_COOKIE, &CookieReq, SUP_IOCTL_COOKIE_SIZE);
267	if ( RT_SUCCESS(rc)
268	&& RT_SUCCESS(CookieReq.Hdr.rc))
269	{
270	if ( (CookieReq.u.Out.u32SessionVersion & 0xffff0000) == (SUPDRV_IOC_VERSION & 0xffff0000)
271	&& CookieReq.u.Out.u32SessionVersion >= MinVersion)
272	{
273	/*
274	* Query the functions.
275	*/
276	PSUPQUERYFUNCS pFuncsReq = (PSUPQUERYFUNCS)RTMemAllocZ(SUP_IOCTL_QUERY_FUNCS_SIZE(CookieReq.u.Out.cFunctions));
277	if (pFuncsReq)
278	{
279	pFuncsReq->Hdr.u32Cookie = CookieReq.u.Out.u32Cookie;
280	pFuncsReq->Hdr.u32SessionCookie = CookieReq.u.Out.u32SessionCookie;
281	pFuncsReq->Hdr.cbIn = SUP_IOCTL_QUERY_FUNCS_SIZE_IN;
282	pFuncsReq->Hdr.cbOut = SUP_IOCTL_QUERY_FUNCS_SIZE_OUT(CookieReq.u.Out.cFunctions);
283	pFuncsReq->Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
284	pFuncsReq->Hdr.rc = VERR_INTERNAL_ERROR;
285	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_QUERY_FUNCS(CookieReq.u.Out.cFunctions), pFuncsReq, SUP_IOCTL_QUERY_FUNCS_SIZE(CookieReq.u.Out.cFunctions));
286	if (RT_SUCCESS(rc))
287	rc = pFuncsReq->Hdr.rc;
288	if (RT_SUCCESS(rc))
289	{
290	/*
291	* Map the GIP into userspace.
292	*/
293	Assert(!g_pSUPGlobalInfoPage);
294	SUPGIPMAP GipMapReq;
295	GipMapReq.Hdr.u32Cookie = CookieReq.u.Out.u32Cookie;
296	GipMapReq.Hdr.u32SessionCookie = CookieReq.u.Out.u32SessionCookie;
297	GipMapReq.Hdr.cbIn = SUP_IOCTL_GIP_MAP_SIZE_IN;
298	GipMapReq.Hdr.cbOut = SUP_IOCTL_GIP_MAP_SIZE_OUT;
299	GipMapReq.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
300	GipMapReq.Hdr.rc = VERR_INTERNAL_ERROR;
301	GipMapReq.u.Out.HCPhysGip = NIL_RTHCPHYS;
302	GipMapReq.u.Out.pGipR0 = NIL_RTR0PTR;
303	GipMapReq.u.Out.pGipR3 = NULL;
304	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_GIP_MAP, &GipMapReq, SUP_IOCTL_GIP_MAP_SIZE);
305	if (RT_SUCCESS(rc))
306	rc = GipMapReq.Hdr.rc;
307	if (RT_SUCCESS(rc))
308	{
309	AssertRelease(GipMapReq.u.Out.pGipR3->u32Magic == SUPGLOBALINFOPAGE_MAGIC);
310	AssertRelease(GipMapReq.u.Out.pGipR3->u32Version >= SUPGLOBALINFOPAGE_VERSION);
311
312	/*
313	* Set the globals and return success.
314	*/
315	ASMAtomicXchgSize(&g_HCPhysSUPGlobalInfoPage, GipMapReq.u.Out.HCPhysGip);
316	ASMAtomicCmpXchgPtr((void * volatile *)&g_pSUPGlobalInfoPage, GipMapReq.u.Out.pGipR3, NULL);
317	ASMAtomicCmpXchgPtr((void * volatile )&g_pSUPGlobalInfoPageR0, (void )GipMapReq.u.Out.pGipR0, NULL);
318
319	g_u32Cookie = CookieReq.u.Out.u32Cookie;
320	g_u32SessionCookie = CookieReq.u.Out.u32SessionCookie;
321	g_pSession = CookieReq.u.Out.pSession;
322	g_pFunctions = pFuncsReq;
323	if (ppSession)
324	*ppSession = CookieReq.u.Out.pSession;
325	return VINF_SUCCESS;
326	}
327	}
328
329	/* bailout */
330	RTMemFree(pFuncsReq);
331	}
332	else
333	rc = VERR_NO_MEMORY;
334	}
335	else
336	{
337	LogRel(("Support driver version mismatch: SessionVersion=%#x DriverVersion=%#x ClientVersion=%#x MinVersion=%#x\n",
338	CookieReq.u.Out.u32SessionVersion, CookieReq.u.Out.u32DriverVersion, SUPDRV_IOC_VERSION, MinVersion));
339	rc = VERR_VM_DRIVER_VERSION_MISMATCH;
340	}
341	}
342	else
343	{
344	if (RT_SUCCESS(rc))
345	{
346	rc = CookieReq.Hdr.rc;
347	LogRel(("Support driver version mismatch: DriverVersion=%#x ClientVersion=%#x rc=%Rrc\n",
348	CookieReq.u.Out.u32DriverVersion, SUPDRV_IOC_VERSION, rc));
349	if (rc != VERR_VM_DRIVER_VERSION_MISMATCH)
350	rc = VERR_VM_DRIVER_VERSION_MISMATCH;
351	}
352	else
353	{
354	/* for pre 0x00060000 drivers */
355	LogRel(("Support driver version mismatch: DriverVersion=too-old ClientVersion=%#x\n", SUPDRV_IOC_VERSION));
356	rc = VERR_VM_DRIVER_VERSION_MISMATCH;
357	}
358	}
359
360	suplibOsTerm(&g_supLibData);
361	}
362	g_cInits--;
363
364	return rc;
365	}
366
367	/**
368	* Fake mode init.
369	*/
370	static int supInitFake(PSUPDRVSESSION *ppSession)
371	{
372	Log(("SUP: Fake mode!\n"));
373	static const SUPFUNC s_aFakeFunctions[] =
374	{
375	/* name function */
376	{ "SUPR0AbsIs64bit", 0 },
377	{ "SUPR0Abs64bitKernelCS", 0 },
378	{ "SUPR0Abs64bitKernelSS", 0 },
379	{ "SUPR0Abs64bitKernelDS", 0 },
380	{ "SUPR0AbsKernelCS", 8 },
381	{ "SUPR0AbsKernelSS", 16 },
382	{ "SUPR0AbsKernelDS", 16 },
383	{ "SUPR0AbsKernelES", 16 },
384	{ "SUPR0AbsKernelFS", 24 },
385	{ "SUPR0AbsKernelGS", 32 },
386	{ "SUPR0ComponentRegisterFactory", 0xefeefffd },
387	{ "SUPR0ComponentDeregisterFactory", 0xefeefffe },
388	{ "SUPR0ComponentQueryFactory", 0xefeeffff },
389	{ "SUPR0ObjRegister", 0xefef0000 },
390	{ "SUPR0ObjAddRef", 0xefef0001 },
391	{ "SUPR0ObjAddRefEx", 0xefef0001 },
392	{ "SUPR0ObjRelease", 0xefef0002 },
393	{ "SUPR0ObjVerifyAccess", 0xefef0003 },
394	{ "SUPR0LockMem", 0xefef0004 },
395	{ "SUPR0UnlockMem", 0xefef0005 },
396	{ "SUPR0ContAlloc", 0xefef0006 },
397	{ "SUPR0ContFree", 0xefef0007 },
398	{ "SUPR0MemAlloc", 0xefef0008 },
399	{ "SUPR0MemGetPhys", 0xefef0009 },
400	{ "SUPR0MemFree", 0xefef000a },
401	{ "SUPR0Printf", 0xefef000b },
402	{ "SUPR0GetPagingMode", 0xefef000c },
403	{ "SUPR0EnableVTx", 0xefef000c },
404	{ "RTMemAlloc", 0xefef000d },
405	{ "RTMemAllocZ", 0xefef000e },
406	{ "RTMemFree", 0xefef000f },
407	{ "RTR0MemObjAddress", 0xefef0010 },
408	{ "RTR0MemObjAddressR3", 0xefef0011 },
409	{ "RTR0MemObjAllocPage", 0xefef0012 },
410	{ "RTR0MemObjAllocPhysNC", 0xefef0013 },
411	{ "RTR0MemObjAllocLow", 0xefef0014 },
412	{ "RTR0MemObjEnterPhys", 0xefef0014 },
413	{ "RTR0MemObjFree", 0xefef0015 },
414	{ "RTR0MemObjGetPagePhysAddr", 0xefef0016 },
415	{ "RTR0MemObjMapUser", 0xefef0017 },
416	{ "RTR0MemObjMapKernel", 0xefef0017 },
417	{ "RTR0MemObjMapKernelEx", 0xefef0017 },
418	{ "RTProcSelf", 0xefef0038 },
419	{ "RTR0ProcHandleSelf", 0xefef0039 },
420	{ "RTSemEventCreate", 0xefef0018 },
421	{ "RTSemEventSignal", 0xefef0019 },
422	{ "RTSemEventWait", 0xefef001a },
423	{ "RTSemEventWaitNoResume", 0xefef001b },
424	{ "RTSemEventDestroy", 0xefef001c },
425	{ "RTSemEventMultiCreate", 0xefef001d },
426	{ "RTSemEventMultiSignal", 0xefef001e },
427	{ "RTSemEventMultiReset", 0xefef001f },
428	{ "RTSemEventMultiWait", 0xefef0020 },
429	{ "RTSemEventMultiWaitNoResume", 0xefef0021 },
430	{ "RTSemEventMultiDestroy", 0xefef0022 },
431	{ "RTSemFastMutexCreate", 0xefef0023 },
432	{ "RTSemFastMutexDestroy", 0xefef0024 },
433	{ "RTSemFastMutexRequest", 0xefef0025 },
434	{ "RTSemFastMutexRelease", 0xefef0026 },
435	{ "RTSpinlockCreate", 0xefef0027 },
436	{ "RTSpinlockDestroy", 0xefef0028 },
437	{ "RTSpinlockAcquire", 0xefef0029 },
438	{ "RTSpinlockRelease", 0xefef002a },
439	{ "RTSpinlockAcquireNoInts", 0xefef002b },
440	{ "RTSpinlockReleaseNoInts", 0xefef002c },
441	{ "RTTimeNanoTS", 0xefef002d },
442	{ "RTTimeMillieTS", 0xefef002e },
443	{ "RTTimeSystemNanoTS", 0xefef002f },
444	{ "RTTimeSystemMillieTS", 0xefef0030 },
445	{ "RTThreadNativeSelf", 0xefef0031 },
446	{ "RTThreadSleep", 0xefef0032 },
447	{ "RTThreadYield", 0xefef0033 },
448	{ "RTLogDefaultInstance", 0xefef0034 },
449	{ "RTLogRelDefaultInstance", 0xefef0035 },
450	{ "RTLogSetDefaultInstanceThread", 0xefef0036 },
451	{ "RTLogLogger", 0xefef0037 },
452	{ "RTLogLoggerEx", 0xefef0038 },
453	{ "RTLogLoggerExV", 0xefef0039 },
454	{ "AssertMsg1", 0xefef003a },
455	{ "AssertMsg2", 0xefef003b },
456	{ "RTAssertMsg1", 0xefef003c },
457	{ "RTAssertMsg2", 0xefef003d },
458	{ "RTAssertMsg2V", 0xefef003e },
459	};
460
461	/* fake r0 functions. */
462	g_pFunctions = (PSUPQUERYFUNCS)RTMemAllocZ(SUP_IOCTL_QUERY_FUNCS_SIZE(RT_ELEMENTS(s_aFakeFunctions)));
463	if (g_pFunctions)
464	{
465	g_pFunctions->u.Out.cFunctions = RT_ELEMENTS(s_aFakeFunctions);
466	memcpy(&g_pFunctions->u.Out.aFunctions[0], &s_aFakeFunctions[0], sizeof(s_aFakeFunctions));
467	g_pSession = (PSUPDRVSESSION)(void *)g_pFunctions;
468	if (ppSession)
469	*ppSession = g_pSession;
470
471	/* fake the GIP. */
472	g_pSUPGlobalInfoPage = (PSUPGLOBALINFOPAGE)RTMemPageAllocZ(PAGE_SIZE);
473	if (g_pSUPGlobalInfoPage)
474	{
475	g_pSUPGlobalInfoPageR0 = g_pSUPGlobalInfoPage;
476	g_HCPhysSUPGlobalInfoPage = NIL_RTHCPHYS & ~(RTHCPHYS)PAGE_OFFSET_MASK;
477	/* the page is supposed to be invalid, so don't set the magic. */
478	return VINF_SUCCESS;
479	}
480
481	RTMemFree(g_pFunctions);
482	g_pFunctions = NULL;
483	}
484	return VERR_NO_MEMORY;
485	}
486
487
488	SUPR3DECL(int) SUPTerm(bool fForced)
489	{
490	/*
491	* Verify state.
492	*/
493	AssertMsg(g_cInits > 0, ("SUPTerm() is called before SUPR3Init()!\n"));
494	if (g_cInits == 0)
495	return VERR_WRONG_ORDER;
496	if (g_cInits == 1 \|\| fForced)
497	{
498	/*
499	* NULL the GIP pointer.
500	*/
501	if (g_pSUPGlobalInfoPage)
502	{
503	ASMAtomicXchgPtr((void * volatile *)&g_pSUPGlobalInfoPage, NULL);
504	ASMAtomicXchgPtr((void * volatile *)&g_pSUPGlobalInfoPageR0, NULL);
505	ASMAtomicXchgSize(&g_HCPhysSUPGlobalInfoPage, NIL_RTHCPHYS);
506	/* just a little safe guard against threads using the page. */
507	RTThreadSleep(50);
508	}
509
510	/*
511	* Close the support driver.
512	*/
513	int rc = suplibOsTerm(&g_supLibData);
514	if (rc)
515	return rc;
516
517	g_u32Cookie = 0;
518	g_u32SessionCookie = 0;
519	g_cInits = 0;
520	}
521	else
522	g_cInits--;
523
524	return 0;
525	}
526
527
528	SUPR3DECL(SUPPAGINGMODE) SUPGetPagingMode(void)
529	{
530	/* fake */
531	if (RT_UNLIKELY(g_u32FakeMode))
532	#ifdef RT_ARCH_AMD64
533	return SUPPAGINGMODE_AMD64_GLOBAL_NX;
534	#else
535	return SUPPAGINGMODE_32_BIT_GLOBAL;
536	#endif
537
538	/*
539	* Issue IOCtl to the SUPDRV kernel module.
540	*/
541	SUPGETPAGINGMODE Req;
542	Req.Hdr.u32Cookie = g_u32Cookie;
543	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
544	Req.Hdr.cbIn = SUP_IOCTL_GET_PAGING_MODE_SIZE_IN;
545	Req.Hdr.cbOut = SUP_IOCTL_GET_PAGING_MODE_SIZE_OUT;
546	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
547	Req.Hdr.rc = VERR_INTERNAL_ERROR;
548	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_GET_PAGING_MODE, &Req, SUP_IOCTL_GET_PAGING_MODE_SIZE);
549	if ( RT_FAILURE(rc)
550	\|\| RT_FAILURE(Req.Hdr.rc))
551	{
552	LogRel(("SUPGetPagingMode: %Rrc %Rrc\n", rc, Req.Hdr.rc));
553	Req.u.Out.enmMode = SUPPAGINGMODE_INVALID;
554	}
555
556	return Req.u.Out.enmMode;
557	}
558
559
560	/**
561	* For later.
562	*/
563	static int supCallVMMR0ExFake(PVMR0 pVMR0, unsigned uOperation, uint64_t u64Arg, PSUPVMMR0REQHDR pReqHdr)
564	{
565	AssertMsgFailed(("%d\n", uOperation));
566	return VERR_NOT_SUPPORTED;
567	}
568
569
570	SUPR3DECL(int) SUPCallVMMR0Fast(PVMR0 pVMR0, unsigned uOperation, unsigned idCpu)
571	{
572	if (RT_LIKELY(uOperation == SUP_VMMR0_DO_RAW_RUN))
573	return suplibOsIOCtlFast(&g_supLibData, SUP_IOCTL_FAST_DO_RAW_RUN, idCpu);
574	if (RT_LIKELY(uOperation == SUP_VMMR0_DO_HWACC_RUN))
575	return suplibOsIOCtlFast(&g_supLibData, SUP_IOCTL_FAST_DO_HWACC_RUN, idCpu);
576	if (RT_LIKELY(uOperation == SUP_VMMR0_DO_NOP))
577	return suplibOsIOCtlFast(&g_supLibData, SUP_IOCTL_FAST_DO_NOP, idCpu);
578
579	AssertMsgFailed(("%#x\n", uOperation));
580	return VERR_INTERNAL_ERROR;
581	}
582
583
584	SUPR3DECL(int) SUPCallVMMR0Ex(PVMR0 pVMR0, unsigned idCpu, unsigned uOperation, uint64_t u64Arg, PSUPVMMR0REQHDR pReqHdr)
585	{
586	/*
587	* The following operations don't belong here.
588	*/
589	AssertMsgReturn( uOperation != SUP_VMMR0_DO_RAW_RUN
590	&& uOperation != SUP_VMMR0_DO_HWACC_RUN
591	&& uOperation != SUP_VMMR0_DO_NOP,
592	("%#x\n", uOperation),
593	VERR_INTERNAL_ERROR);
594
595	/* fake */
596	if (RT_UNLIKELY(g_u32FakeMode))
597	return supCallVMMR0ExFake(pVMR0, uOperation, u64Arg, pReqHdr);
598
599	int rc;
600	if (!pReqHdr)
601	{
602	/* no data. */
603	SUPCALLVMMR0 Req;
604	Req.Hdr.u32Cookie = g_u32Cookie;
605	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
606	Req.Hdr.cbIn = SUP_IOCTL_CALL_VMMR0_SIZE_IN(0);
607	Req.Hdr.cbOut = SUP_IOCTL_CALL_VMMR0_SIZE_OUT(0);
608	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
609	Req.Hdr.rc = VERR_INTERNAL_ERROR;
610	Req.u.In.pVMR0 = pVMR0;
611	Req.u.In.idCpu = idCpu;
612	Req.u.In.uOperation = uOperation;
613	Req.u.In.u64Arg = u64Arg;
614	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CALL_VMMR0(0), &Req, SUP_IOCTL_CALL_VMMR0_SIZE(0));
615	if (RT_SUCCESS(rc))
616	rc = Req.Hdr.rc;
617	}
618	else if (SUP_IOCTL_CALL_VMMR0_SIZE(pReqHdr->cbReq) < _4K) /* FreeBSD won't copy more than 4K. */
619	{
620	AssertPtrReturn(pReqHdr, VERR_INVALID_POINTER);
621	AssertReturn(pReqHdr->u32Magic == SUPVMMR0REQHDR_MAGIC, VERR_INVALID_MAGIC);
622	const size_t cbReq = pReqHdr->cbReq;
623
624	PSUPCALLVMMR0 pReq = (PSUPCALLVMMR0)alloca(SUP_IOCTL_CALL_VMMR0_SIZE(cbReq));
625	pReq->Hdr.u32Cookie = g_u32Cookie;
626	pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
627	pReq->Hdr.cbIn = SUP_IOCTL_CALL_VMMR0_SIZE_IN(cbReq);
628	pReq->Hdr.cbOut = SUP_IOCTL_CALL_VMMR0_SIZE_OUT(cbReq);
629	pReq->Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
630	pReq->Hdr.rc = VERR_INTERNAL_ERROR;
631	pReq->u.In.pVMR0 = pVMR0;
632	pReq->u.In.idCpu = idCpu;
633	pReq->u.In.uOperation = uOperation;
634	pReq->u.In.u64Arg = u64Arg;
635	memcpy(&pReq->abReqPkt[0], pReqHdr, cbReq);
636	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CALL_VMMR0(cbReq), pReq, SUP_IOCTL_CALL_VMMR0_SIZE(cbReq));
637	if (RT_SUCCESS(rc))
638	rc = pReq->Hdr.rc;
639	memcpy(pReqHdr, &pReq->abReqPkt[0], cbReq);
640	}
641	else /** @todo may have to remove the size limits one this request... */
642	AssertMsgFailedReturn(("cbReq=%#x\n", pReqHdr->cbReq), VERR_INTERNAL_ERROR);
643	return rc;
644	}
645
646
647	SUPR3DECL(int) SUPCallVMMR0(PVMR0 pVMR0, unsigned idCpu, unsigned uOperation, void *pvArg)
648	{
649	/*
650	* The following operations don't belong here.
651	*/
652	AssertMsgReturn( uOperation != SUP_VMMR0_DO_RAW_RUN
653	&& uOperation != SUP_VMMR0_DO_HWACC_RUN
654	&& uOperation != SUP_VMMR0_DO_NOP,
655	("%#x\n", uOperation),
656	VERR_INTERNAL_ERROR);
657	return SUPCallVMMR0Ex(pVMR0, idCpu, uOperation, (uintptr_t)pvArg, NULL);
658	}
659
660
661	SUPR3DECL(int) SUPSetVMForFastIOCtl(PVMR0 pVMR0)
662	{
663	if (RT_UNLIKELY(g_u32FakeMode))
664	return VINF_SUCCESS;
665
666	SUPSETVMFORFAST Req;
667	Req.Hdr.u32Cookie = g_u32Cookie;
668	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
669	Req.Hdr.cbIn = SUP_IOCTL_SET_VM_FOR_FAST_SIZE_IN;
670	Req.Hdr.cbOut = SUP_IOCTL_SET_VM_FOR_FAST_SIZE_OUT;
671	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
672	Req.Hdr.rc = VERR_INTERNAL_ERROR;
673	Req.u.In.pVMR0 = pVMR0;
674	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_SET_VM_FOR_FAST, &Req, SUP_IOCTL_SET_VM_FOR_FAST_SIZE);
675	if (RT_SUCCESS(rc))
676	rc = Req.Hdr.rc;
677	return rc;
678	}
679
680
681	SUPR3DECL(int) SUPR3CallR0Service(const char *pszService, size_t cchService, uint32_t uOperation, uint64_t u64Arg, PSUPR0SERVICEREQHDR pReqHdr)
682	{
683	AssertReturn(cchService < RT_SIZEOFMEMB(SUPCALLSERVICE, u.In.szName), VERR_INVALID_PARAMETER);
684	Assert(strlen(pszService) == cchService);
685
686	/* fake */
687	if (RT_UNLIKELY(g_u32FakeMode))
688	return VERR_NOT_SUPPORTED;
689
690	int rc;
691	if (!pReqHdr)
692	{
693	/* no data. */
694	SUPCALLSERVICE Req;
695	Req.Hdr.u32Cookie = g_u32Cookie;
696	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
697	Req.Hdr.cbIn = SUP_IOCTL_CALL_SERVICE_SIZE_IN(0);
698	Req.Hdr.cbOut = SUP_IOCTL_CALL_SERVICE_SIZE_OUT(0);
699	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
700	Req.Hdr.rc = VERR_INTERNAL_ERROR;
701	memcpy(Req.u.In.szName, pszService, cchService);
702	Req.u.In.szName[cchService] = '\0';
703	Req.u.In.uOperation = uOperation;
704	Req.u.In.u64Arg = u64Arg;
705	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CALL_SERVICE(0), &Req, SUP_IOCTL_CALL_SERVICE_SIZE(0));
706	if (RT_SUCCESS(rc))
707	rc = Req.Hdr.rc;
708	}
709	else if (SUP_IOCTL_CALL_SERVICE_SIZE(pReqHdr->cbReq) < _4K) /* FreeBSD won't copy more than 4K. */
710	{
711	AssertPtrReturn(pReqHdr, VERR_INVALID_POINTER);
712	AssertReturn(pReqHdr->u32Magic == SUPR0SERVICEREQHDR_MAGIC, VERR_INVALID_MAGIC);
713	const size_t cbReq = pReqHdr->cbReq;
714
715	PSUPCALLSERVICE pReq = (PSUPCALLSERVICE)alloca(SUP_IOCTL_CALL_SERVICE_SIZE(cbReq));
716	pReq->Hdr.u32Cookie = g_u32Cookie;
717	pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
718	pReq->Hdr.cbIn = SUP_IOCTL_CALL_SERVICE_SIZE_IN(cbReq);
719	pReq->Hdr.cbOut = SUP_IOCTL_CALL_SERVICE_SIZE_OUT(cbReq);
720	pReq->Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
721	pReq->Hdr.rc = VERR_INTERNAL_ERROR;
722	memcpy(pReq->u.In.szName, pszService, cchService);
723	pReq->u.In.szName[cchService] = '\0';
724	pReq->u.In.uOperation = uOperation;
725	pReq->u.In.u64Arg = u64Arg;
726	memcpy(&pReq->abReqPkt[0], pReqHdr, cbReq);
727	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CALL_SERVICE(cbReq), pReq, SUP_IOCTL_CALL_SERVICE_SIZE(cbReq));
728	if (RT_SUCCESS(rc))
729	rc = pReq->Hdr.rc;
730	memcpy(pReqHdr, &pReq->abReqPkt[0], cbReq);
731	}
732	else /** @todo may have to remove the size limits one this request... */
733	AssertMsgFailedReturn(("cbReq=%#x\n", pReqHdr->cbReq), VERR_INTERNAL_ERROR);
734	return rc;
735	}
736
737
738	/**
739	* Worker for the SUPR3Logger* APIs.
740	*
741	* @returns VBox status code.
742	* @param enmWhich Which logger.
743	* @param fWhat What to do with the logger.
744	* @param pszFlags The flags settings.
745	* @param pszGroups The groups settings.
746	* @param pszDest The destionation specificier.
747	*/
748	static int supR3LoggerSettings(SUPLOGGER enmWhich, uint32_t fWhat, const char pszFlags, const char pszGroups, const char *pszDest)
749	{
750	uint32_t const cchFlags = pszFlags ? (uint32_t)strlen(pszFlags) : 0;
751	uint32_t const cchGroups = pszGroups ? (uint32_t)strlen(pszGroups) : 0;
752	uint32_t const cchDest = pszDest ? (uint32_t)strlen(pszDest) : 0;
753	uint32_t const cbStrTab = cchFlags + !!cchFlags
754	+ cchGroups + !!cchGroups
755	+ cchDest + !!cchDest
756	+ (!cchFlags && !cchGroups && !cchDest);
757
758	PSUPLOGGERSETTINGS pReq = (PSUPLOGGERSETTINGS)alloca(SUP_IOCTL_LOGGER_SETTINGS_SIZE(cbStrTab));
759	pReq->Hdr.u32Cookie = g_u32Cookie;
760	pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
761	pReq->Hdr.cbIn = SUP_IOCTL_LOGGER_SETTINGS_SIZE_IN(cbStrTab);
762	pReq->Hdr.cbOut = SUP_IOCTL_LOGGER_SETTINGS_SIZE_OUT;
763	pReq->Hdr.fFlags= SUPREQHDR_FLAGS_DEFAULT;
764	pReq->Hdr.rc = VERR_INTERNAL_ERROR;
765	switch (enmWhich)
766	{
767	case SUPLOGGER_DEBUG: pReq->u.In.fWhich = SUPLOGGERSETTINGS_WHICH_DEBUG; break;
768	case SUPLOGGER_RELEASE: pReq->u.In.fWhich = SUPLOGGERSETTINGS_WHICH_RELEASE; break;
769	default:
770	return VERR_INVALID_PARAMETER;
771	}
772	pReq->u.In.fWhat = fWhat;
773
774	uint32_t off = 0;
775	if (cchFlags)
776	{
777	pReq->u.In.offFlags = off;
778	memcpy(&pReq->u.In.szStrings[off], pszFlags, cchFlags + 1);
779	off += cchFlags + 1;
780	}
781	else
782	pReq->u.In.offFlags = cbStrTab - 1;
783
784	if (cchGroups)
785	{
786	pReq->u.In.offGroups = off;
787	memcpy(&pReq->u.In.szStrings[off], pszGroups, cchGroups + 1);
788	off += cchGroups + 1;
789	}
790	else
791	pReq->u.In.offGroups = cbStrTab - 1;
792
793	if (cchDest)
794	{
795	pReq->u.In.offDestination = off;
796	memcpy(&pReq->u.In.szStrings[off], pszDest, cchDest + 1);
797	off += cchDest + 1;
798	}
799	else
800	pReq->u.In.offDestination = cbStrTab - 1;
801
802	if (!off)
803	{
804	pReq->u.In.szStrings[0] = '\0';
805	off++;
806	}
807	Assert(off == cbStrTab);
808	Assert(pReq->u.In.szStrings[cbStrTab - 1] == '\0');
809
810
811	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LOGGER_SETTINGS(cbStrTab), pReq, SUP_IOCTL_LOGGER_SETTINGS_SIZE(cbStrTab));
812	if (RT_SUCCESS(rc))
813	rc = pReq->Hdr.rc;
814	return rc;
815	}
816
817
818	SUPR3DECL(int) SUPR3LoggerSettings(SUPLOGGER enmWhich, const char pszFlags, const char pszGroups, const char *pszDest)
819	{
820	return supR3LoggerSettings(enmWhich, SUPLOGGERSETTINGS_WHAT_SETTINGS, pszFlags, pszGroups, pszDest);
821	}
822
823
824	SUPR3DECL(int) SUPR3LoggerCreate(SUPLOGGER enmWhich, const char pszFlags, const char pszGroups, const char *pszDest)
825	{
826	return supR3LoggerSettings(enmWhich, SUPLOGGERSETTINGS_WHAT_CREATE, pszFlags, pszGroups, pszDest);
827	}
828
829
830	SUPR3DECL(int) SUPR3LoggerDestroy(SUPLOGGER enmWhich)
831	{
832	return supR3LoggerSettings(enmWhich, SUPLOGGERSETTINGS_WHAT_DESTROY, NULL, NULL, NULL);
833	}
834
835
836	SUPR3DECL(int) SUPPageAlloc(size_t cPages, void **ppvPages)
837	{
838	/*
839	* Validate.
840	*/
841	AssertPtrReturn(ppvPages, VERR_INVALID_POINTER);
842	*ppvPages = NULL;
843	AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
844
845	#ifdef RT_OS_WINDOWS
846	/*
847	* Temporary hack for windows until we've sorted out the
848	* locked memory that doesn't need to be accessible from kernel space.
849	*/
850	return SUPPageAllocLockedEx(cPages, ppvPages, NULL);
851	#else
852	/*
853	* Call OS specific worker.
854	*/
855	return suplibOsPageAlloc(&g_supLibData, cPages, ppvPages);
856	#endif
857	}
858
859
860	SUPR3DECL(int) SUPPageFree(void *pvPages, size_t cPages)
861	{
862	/*
863	* Validate.
864	*/
865	AssertPtrReturn(pvPages, VERR_INVALID_POINTER);
866	AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
867
868	#ifdef RT_OS_WINDOWS
869	/*
870	* Temporary hack for windows, see above.
871	*/
872	return SUPPageFreeLocked(pvPages, cPages);
873	#else
874	/*
875	* Call OS specific worker.
876	*/
877	return suplibOsPageFree(&g_supLibData, pvPages, cPages);
878	#endif
879	}
880
881
882	SUPR3DECL(int) SUPPageLock(void *pvStart, size_t cPages, PSUPPAGE paPages)
883	{
884	/*
885	* Validate.
886	*/
887	AssertPtr(pvStart);
888	AssertMsg(RT_ALIGN_P(pvStart, PAGE_SIZE) == pvStart, ("pvStart (%p) must be page aligned\n", pvStart));
889	AssertPtr(paPages);
890
891	/* fake */
892	if (RT_UNLIKELY(g_u32FakeMode))
893	{
894	RTHCPHYS Phys = (uintptr_t)pvStart + PAGE_SIZE * 1024;
895	size_t iPage = cPages;
896	while (iPage-- > 0)
897	paPages[iPage].Phys = Phys + (iPage << PAGE_SHIFT);
898	return VINF_SUCCESS;
899	}
900
901	/*
902	* Issue IOCtl to the SUPDRV kernel module.
903	*/
904	int rc;
905	PSUPPAGELOCK pReq = (PSUPPAGELOCK)RTMemTmpAllocZ(SUP_IOCTL_PAGE_LOCK_SIZE(cPages));
906	if (RT_LIKELY(pReq))
907	{
908	pReq->Hdr.u32Cookie = g_u32Cookie;
909	pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
910	pReq->Hdr.cbIn = SUP_IOCTL_PAGE_LOCK_SIZE_IN;
911	pReq->Hdr.cbOut = SUP_IOCTL_PAGE_LOCK_SIZE_OUT(cPages);
912	pReq->Hdr.fFlags = SUPREQHDR_FLAGS_MAGIC \| SUPREQHDR_FLAGS_EXTRA_OUT;
913	pReq->Hdr.rc = VERR_INTERNAL_ERROR;
914	pReq->u.In.pvR3 = pvStart;
915	pReq->u.In.cPages = (uint32_t)cPages; AssertRelease(pReq->u.In.cPages == cPages);
916	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_PAGE_LOCK, pReq, SUP_IOCTL_PAGE_LOCK_SIZE(cPages));
917	if (RT_SUCCESS(rc))
918	rc = pReq->Hdr.rc;
919	if (RT_SUCCESS(rc))
920	{
921	for (uint32_t iPage = 0; iPage < cPages; iPage++)
922	{
923	paPages[iPage].uReserved = 0;
924	paPages[iPage].Phys = pReq->u.Out.aPages[iPage];
925	Assert(!(paPages[iPage].Phys & ~X86_PTE_PAE_PG_MASK));
926	}
927	}
928	RTMemTmpFree(pReq);
929	}
930	else
931	rc = VERR_NO_TMP_MEMORY;
932
933	return rc;
934	}
935
936
937	SUPR3DECL(int) SUPPageUnlock(void *pvStart)
938	{
939	/*
940	* Validate.
941	*/
942	AssertPtr(pvStart);
943	AssertMsg(RT_ALIGN_P(pvStart, PAGE_SIZE) == pvStart, ("pvStart (%p) must be page aligned\n", pvStart));
944
945	/* fake */
946	if (RT_UNLIKELY(g_u32FakeMode))
947	return VINF_SUCCESS;
948
949	/*
950	* Issue IOCtl to the SUPDRV kernel module.
951	*/
952	SUPPAGEUNLOCK Req;
953	Req.Hdr.u32Cookie = g_u32Cookie;
954	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
955	Req.Hdr.cbIn = SUP_IOCTL_PAGE_UNLOCK_SIZE_IN;
956	Req.Hdr.cbOut = SUP_IOCTL_PAGE_UNLOCK_SIZE_OUT;
957	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
958	Req.Hdr.rc = VERR_INTERNAL_ERROR;
959	Req.u.In.pvR3 = pvStart;
960	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_PAGE_UNLOCK, &Req, SUP_IOCTL_PAGE_UNLOCK_SIZE);
961	if (RT_SUCCESS(rc))
962	rc = Req.Hdr.rc;
963	return rc;
964	}
965
966
967	SUPR3DECL(int) SUPPageAllocLockedEx(size_t cPages, void **ppvPages, PSUPPAGE paPages)
968	{
969	return SUPR3PageAllocEx(cPages, 0 /fFlags/, ppvPages, NULL /pR0Ptr/, paPages);
970	}
971
972
973	SUPR3DECL(int) SUPPageFreeLocked(void *pvPages, size_t cPages)
974	{
975	/*
976	* Validate.
977	*/
978	AssertPtrReturn(pvPages, VERR_INVALID_POINTER);
979	AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
980
981	/*
982	* Check if we're employing the fallback or not to avoid the
983	* fuzzy handling of this in SUPR3PageFreeEx.
984	*/
985	int rc;
986	if (g_fSupportsPageAllocNoKernel)
987	rc = SUPR3PageFreeEx(pvPages, cPages);
988	else
989	{
990	/* fallback */
991	rc = SUPPageUnlock(pvPages);
992	if (RT_SUCCESS(rc))
993	rc = suplibOsPageFree(&g_supLibData, pvPages, cPages);
994	}
995	return rc;
996	}
997
998
999	/**
1000	* Fallback for SUPPageAllocLockedEx on systems where RTR0MemObjPhysAllocNC isn't supported.
1001	*/
1002	static int supPagePageAllocNoKernelFallback(size_t cPages, void **ppvPages, PSUPPAGE paPages)
1003	{
1004	int rc = suplibOsPageAlloc(&g_supLibData, cPages, ppvPages);
1005	if (RT_SUCCESS(rc))
1006	{
1007	if (!paPages)
1008	paPages = (PSUPPAGE)alloca(sizeof(paPages[0]) * cPages);
1009	rc = SUPPageLock(*ppvPages, cPages, paPages);
1010	if (RT_FAILURE(rc))
1011	suplibOsPageFree(&g_supLibData, *ppvPages, cPages);
1012	}
1013	return rc;
1014	}
1015
1016
1017	SUPR3DECL(int) SUPR3PageAllocEx(size_t cPages, uint32_t fFlags, void **ppvPages, PRTR0PTR pR0Ptr, PSUPPAGE paPages)
1018	{
1019	/*
1020	* Validate.
1021	*/
1022	AssertPtrReturn(ppvPages, VERR_INVALID_POINTER);
1023	*ppvPages = NULL;
1024	AssertPtrNullReturn(pR0Ptr, VERR_INVALID_POINTER);
1025	if (pR0Ptr)
1026	*pR0Ptr = NIL_RTR0PTR;
1027	AssertPtrNullReturn(paPages, VERR_INVALID_POINTER);
1028	AssertMsgReturn(cPages > 0 && cPages <= VBOX_MAX_ALLOC_PAGE_COUNT, ("cPages=%zu\n", cPages), VERR_PAGE_COUNT_OUT_OF_RANGE);
1029
1030	/* fake */
1031	if (RT_UNLIKELY(g_u32FakeMode))
1032	{
1033	void pv = RTMemPageAllocZ(cPages PAGE_SIZE);
1034	if (!pv)
1035	return VERR_NO_MEMORY;
1036	*ppvPages = pv;
1037	if (pR0Ptr)
1038	*pR0Ptr = (RTR0PTR)pv;
1039	if (paPages)
1040	for (size_t iPage = 0; iPage < cPages; iPage++)
1041	{
1042	paPages[iPage].uReserved = 0;
1043	paPages[iPage].Phys = (iPage + 4321) << PAGE_SHIFT;
1044	Assert(!(paPages[iPage].Phys & ~X86_PTE_PAE_PG_MASK));
1045	}
1046	return VINF_SUCCESS;
1047	}
1048
1049	/*
1050	* Use fallback for non-R0 mapping?
1051	*/
1052	if ( !pR0Ptr
1053	&& !g_fSupportsPageAllocNoKernel)
1054	return supPagePageAllocNoKernelFallback(cPages, ppvPages, paPages);
1055
1056	/*
1057	* Issue IOCtl to the SUPDRV kernel module.
1058	*/
1059	int rc;
1060	PSUPPAGEALLOCEX pReq = (PSUPPAGEALLOCEX)RTMemTmpAllocZ(SUP_IOCTL_PAGE_ALLOC_EX_SIZE(cPages));
1061	if (pReq)
1062	{
1063	pReq->Hdr.u32Cookie = g_u32Cookie;
1064	pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
1065	pReq->Hdr.cbIn = SUP_IOCTL_PAGE_ALLOC_EX_SIZE_IN;
1066	pReq->Hdr.cbOut = SUP_IOCTL_PAGE_ALLOC_EX_SIZE_OUT(cPages);
1067	pReq->Hdr.fFlags = SUPREQHDR_FLAGS_MAGIC \| SUPREQHDR_FLAGS_EXTRA_OUT;
1068	pReq->Hdr.rc = VERR_INTERNAL_ERROR;
1069	pReq->u.In.cPages = (uint32_t)cPages; AssertRelease(pReq->u.In.cPages == cPages);
1070	pReq->u.In.fKernelMapping = pR0Ptr != NULL;
1071	pReq->u.In.fUserMapping = true;
1072	pReq->u.In.fReserved0 = false;
1073	pReq->u.In.fReserved1 = false;
1074	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_PAGE_ALLOC_EX, pReq, SUP_IOCTL_PAGE_ALLOC_EX_SIZE(cPages));
1075	if (RT_SUCCESS(rc))
1076	{
1077	rc = pReq->Hdr.rc;
1078	if (RT_SUCCESS(rc))
1079	{
1080	*ppvPages = pReq->u.Out.pvR3;
1081	if (pR0Ptr)
1082	*pR0Ptr = pReq->u.Out.pvR0;
1083	if (paPages)
1084	for (size_t iPage = 0; iPage < cPages; iPage++)
1085	{
1086	paPages[iPage].uReserved = 0;
1087	paPages[iPage].Phys = pReq->u.Out.aPages[iPage];
1088	Assert(!(paPages[iPage].Phys & ~X86_PTE_PAE_PG_MASK));
1089	}
1090	}
1091	else if ( rc == VERR_NOT_SUPPORTED
1092	&& !pR0Ptr)
1093	{
1094	g_fSupportsPageAllocNoKernel = false;
1095	rc = supPagePageAllocNoKernelFallback(cPages, ppvPages, paPages);
1096	}
1097	}
1098
1099	RTMemTmpFree(pReq);
1100	}
1101	else
1102	rc = VERR_NO_TMP_MEMORY;
1103	return rc;
1104
1105	}
1106
1107
1108	SUPR3DECL(int) SUPR3PageMapKernel(void *pvR3, uint32_t off, uint32_t cb, uint32_t fFlags, PRTR0PTR pR0Ptr)
1109	{
1110	/*
1111	* Validate.
1112	*/
1113	AssertPtrReturn(pvR3, VERR_INVALID_POINTER);
1114	AssertPtrReturn(pR0Ptr, VERR_INVALID_POINTER);
1115	Assert(!(off & PAGE_OFFSET_MASK));
1116	Assert(!(cb & PAGE_OFFSET_MASK) && cb);
1117	Assert(!fFlags);
1118	*pR0Ptr = NIL_RTR0PTR;
1119
1120	/* fake */
1121	if (RT_UNLIKELY(g_u32FakeMode))
1122	return VERR_NOT_SUPPORTED;
1123
1124	/*
1125	* Issue IOCtl to the SUPDRV kernel module.
1126	*/
1127	SUPPAGEMAPKERNEL Req;
1128	Req.Hdr.u32Cookie = g_u32Cookie;
1129	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1130	Req.Hdr.cbIn = SUP_IOCTL_PAGE_MAP_KERNEL_SIZE_IN;
1131	Req.Hdr.cbOut = SUP_IOCTL_PAGE_MAP_KERNEL_SIZE_OUT;
1132	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1133	Req.Hdr.rc = VERR_INTERNAL_ERROR;
1134	Req.u.In.pvR3 = pvR3;
1135	Req.u.In.offSub = off;
1136	Req.u.In.cbSub = cb;
1137	Req.u.In.fFlags = fFlags;
1138	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_PAGE_MAP_KERNEL, &Req, SUP_IOCTL_PAGE_MAP_KERNEL_SIZE);
1139	if (RT_SUCCESS(rc))
1140	rc = Req.Hdr.rc;
1141	if (RT_SUCCESS(rc))
1142	*pR0Ptr = Req.u.Out.pvR0;
1143	return rc;
1144	}
1145
1146
1147	SUPR3DECL(int) SUPR3PageFreeEx(void *pvPages, size_t cPages)
1148	{
1149	/*
1150	* Validate.
1151	*/
1152	AssertPtrReturn(pvPages, VERR_INVALID_POINTER);
1153	AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
1154
1155	/* fake */
1156	if (RT_UNLIKELY(g_u32FakeMode))
1157	{
1158	RTMemPageFree(pvPages);
1159	return VINF_SUCCESS;
1160	}
1161
1162	/*
1163	* Try normal free first, then if it fails check if we're using the fallback .
1164	* for the allocations without kernel mappings and attempt unlocking it.
1165	*/
1166	NOREF(cPages);
1167	SUPPAGEFREE Req;
1168	Req.Hdr.u32Cookie = g_u32Cookie;
1169	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1170	Req.Hdr.cbIn = SUP_IOCTL_PAGE_FREE_SIZE_IN;
1171	Req.Hdr.cbOut = SUP_IOCTL_PAGE_FREE_SIZE_OUT;
1172	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1173	Req.Hdr.rc = VERR_INTERNAL_ERROR;
1174	Req.u.In.pvR3 = pvPages;
1175	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_PAGE_FREE, &Req, SUP_IOCTL_PAGE_FREE_SIZE);
1176	if (RT_SUCCESS(rc))
1177	{
1178	rc = Req.Hdr.rc;
1179	if ( rc == VERR_INVALID_PARAMETER
1180	&& !g_fSupportsPageAllocNoKernel)
1181	{
1182	int rc2 = SUPPageUnlock(pvPages);
1183	if (RT_SUCCESS(rc2))
1184	rc = suplibOsPageFree(&g_supLibData, pvPages, cPages);
1185	}
1186	}
1187	return rc;
1188	}
1189
1190
1191	SUPR3DECL(void *) SUPContAlloc(size_t cPages, PRTHCPHYS pHCPhys)
1192	{
1193	return SUPContAlloc2(cPages, NIL_RTR0PTR, pHCPhys);
1194	}
1195
1196
1197	SUPR3DECL(void *) SUPContAlloc2(size_t cPages, PRTR0PTR pR0Ptr, PRTHCPHYS pHCPhys)
1198	{
1199	/*
1200	* Validate.
1201	*/
1202	AssertPtrReturn(pHCPhys, NULL);
1203	*pHCPhys = NIL_RTHCPHYS;
1204	AssertPtrNullReturn(pR0Ptr, NULL);
1205	if (pR0Ptr)
1206	*pR0Ptr = NIL_RTR0PTR;
1207	AssertPtrNullReturn(pHCPhys, NULL);
1208	AssertMsgReturn(cPages > 0 && cPages < 256, ("cPages=%d must be > 0 and < 256\n", cPages), NULL);
1209
1210	/* fake */
1211	if (RT_UNLIKELY(g_u32FakeMode))
1212	{
1213	void pv = RTMemPageAllocZ(cPages PAGE_SIZE);
1214	if (pR0Ptr)
1215	*pR0Ptr = (RTR0PTR)pv;
1216	if (pHCPhys)
1217	pHCPhys = (uintptr_t)pv + (PAGE_SHIFT 1024);
1218	return pv;
1219	}
1220
1221	/*
1222	* Issue IOCtl to the SUPDRV kernel module.
1223	*/
1224	SUPCONTALLOC Req;
1225	Req.Hdr.u32Cookie = g_u32Cookie;
1226	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1227	Req.Hdr.cbIn = SUP_IOCTL_CONT_ALLOC_SIZE_IN;
1228	Req.Hdr.cbOut = SUP_IOCTL_CONT_ALLOC_SIZE_OUT;
1229	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1230	Req.Hdr.rc = VERR_INTERNAL_ERROR;
1231	Req.u.In.cPages = (uint32_t)cPages;
1232	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CONT_ALLOC, &Req, SUP_IOCTL_CONT_ALLOC_SIZE);
1233	if ( RT_SUCCESS(rc)
1234	&& RT_SUCCESS(Req.Hdr.rc))
1235	{
1236	*pHCPhys = Req.u.Out.HCPhys;
1237	if (pR0Ptr)
1238	*pR0Ptr = Req.u.Out.pvR0;
1239	return Req.u.Out.pvR3;
1240	}
1241
1242	return NULL;
1243	}
1244
1245
1246	SUPR3DECL(int) SUPContFree(void *pv, size_t cPages)
1247	{
1248	/*
1249	* Validate.
1250	*/
1251	if (!pv)
1252	return VINF_SUCCESS;
1253	AssertPtrReturn(pv, VERR_INVALID_POINTER);
1254	AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
1255
1256	/* fake */
1257	if (RT_UNLIKELY(g_u32FakeMode))
1258	{
1259	RTMemPageFree(pv);
1260	return VINF_SUCCESS;
1261	}
1262
1263	/*
1264	* Issue IOCtl to the SUPDRV kernel module.
1265	*/
1266	SUPCONTFREE Req;
1267	Req.Hdr.u32Cookie = g_u32Cookie;
1268	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1269	Req.Hdr.cbIn = SUP_IOCTL_CONT_FREE_SIZE_IN;
1270	Req.Hdr.cbOut = SUP_IOCTL_CONT_FREE_SIZE_OUT;
1271	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1272	Req.Hdr.rc = VERR_INTERNAL_ERROR;
1273	Req.u.In.pvR3 = pv;
1274	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CONT_FREE, &Req, SUP_IOCTL_CONT_FREE_SIZE);
1275	if (RT_SUCCESS(rc))
1276	rc = Req.Hdr.rc;
1277	return rc;
1278	}
1279
1280
1281	SUPR3DECL(int) SUPLowAlloc(size_t cPages, void **ppvPages, PRTR0PTR ppvPagesR0, PSUPPAGE paPages)
1282	{
1283	/*
1284	* Validate.
1285	*/
1286	AssertPtrReturn(ppvPages, VERR_INVALID_POINTER);
1287	*ppvPages = NULL;
1288	AssertPtrReturn(paPages, VERR_INVALID_POINTER);
1289	AssertMsgReturn(cPages > 0 && cPages < 256, ("cPages=%d must be > 0 and < 256\n", cPages), VERR_PAGE_COUNT_OUT_OF_RANGE);
1290
1291	/* fake */
1292	if (RT_UNLIKELY(g_u32FakeMode))
1293	{
1294	ppvPages = RTMemPageAllocZ((size_t)cPages PAGE_SIZE);
1295	if (!*ppvPages)
1296	return VERR_NO_LOW_MEMORY;
1297
1298	/* fake physical addresses. */
1299	RTHCPHYS Phys = (uintptr_t)ppvPages + PAGE_SIZE 1024;
1300	size_t iPage = cPages;
1301	while (iPage-- > 0)
1302	paPages[iPage].Phys = Phys + (iPage << PAGE_SHIFT);
1303	return VINF_SUCCESS;
1304	}
1305
1306	/*
1307	* Issue IOCtl to the SUPDRV kernel module.
1308	*/
1309	int rc;
1310	PSUPLOWALLOC pReq = (PSUPLOWALLOC)RTMemTmpAllocZ(SUP_IOCTL_LOW_ALLOC_SIZE(cPages));
1311	if (pReq)
1312	{
1313	pReq->Hdr.u32Cookie = g_u32Cookie;
1314	pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
1315	pReq->Hdr.cbIn = SUP_IOCTL_LOW_ALLOC_SIZE_IN;
1316	pReq->Hdr.cbOut = SUP_IOCTL_LOW_ALLOC_SIZE_OUT(cPages);
1317	pReq->Hdr.fFlags = SUPREQHDR_FLAGS_MAGIC \| SUPREQHDR_FLAGS_EXTRA_OUT;
1318	pReq->Hdr.rc = VERR_INTERNAL_ERROR;
1319	pReq->u.In.cPages = (uint32_t)cPages; AssertRelease(pReq->u.In.cPages == cPages);
1320	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LOW_ALLOC, pReq, SUP_IOCTL_LOW_ALLOC_SIZE(cPages));
1321	if (RT_SUCCESS(rc))
1322	rc = pReq->Hdr.rc;
1323	if (RT_SUCCESS(rc))
1324	{
1325	*ppvPages = pReq->u.Out.pvR3;
1326	if (ppvPagesR0)
1327	*ppvPagesR0 = pReq->u.Out.pvR0;
1328	if (paPages)
1329	for (size_t iPage = 0; iPage < cPages; iPage++)
1330	{
1331	paPages[iPage].uReserved = 0;
1332	paPages[iPage].Phys = pReq->u.Out.aPages[iPage];
1333	Assert(!(paPages[iPage].Phys & ~X86_PTE_PAE_PG_MASK));
1334	Assert(paPages[iPage].Phys <= UINT32_C(0xfffff000));
1335	}
1336	}
1337	RTMemTmpFree(pReq);
1338	}
1339	else
1340	rc = VERR_NO_TMP_MEMORY;
1341
1342	return rc;
1343	}
1344
1345
1346	SUPR3DECL(int) SUPLowFree(void *pv, size_t cPages)
1347	{
1348	/*
1349	* Validate.
1350	*/
1351	if (!pv)
1352	return VINF_SUCCESS;
1353	AssertPtrReturn(pv, VERR_INVALID_POINTER);
1354	AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
1355
1356	/* fake */
1357	if (RT_UNLIKELY(g_u32FakeMode))
1358	{
1359	RTMemPageFree(pv);
1360	return VINF_SUCCESS;
1361	}
1362
1363	/*
1364	* Issue IOCtl to the SUPDRV kernel module.
1365	*/
1366	SUPCONTFREE Req;
1367	Req.Hdr.u32Cookie = g_u32Cookie;
1368	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1369	Req.Hdr.cbIn = SUP_IOCTL_LOW_FREE_SIZE_IN;
1370	Req.Hdr.cbOut = SUP_IOCTL_LOW_FREE_SIZE_OUT;
1371	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1372	Req.Hdr.rc = VERR_INTERNAL_ERROR;
1373	Req.u.In.pvR3 = pv;
1374	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LOW_FREE, &Req, SUP_IOCTL_LOW_FREE_SIZE);
1375	if (RT_SUCCESS(rc))
1376	rc = Req.Hdr.rc;
1377	return rc;
1378	}
1379
1380
1381	SUPR3DECL(int) SUPR3HardenedVerifyFile(const char pszFilename, const char pszMsg, PRTFILE phFile)
1382	{
1383	/*
1384	* Quick input validation.
1385	*/
1386	AssertPtr(pszFilename);
1387	AssertPtr(pszMsg);
1388	AssertReturn(!phFile, VERR_NOT_IMPLEMENTED); /** @todo Implement this. The deal is that we make sure the
1389	file is the same we verified after opening it. */
1390
1391	/*
1392	* Only do the actual check in hardened builds.
1393	*/
1394	#ifdef VBOX_WITH_HARDENING
1395	int rc = supR3HardenedVerifyFile(pszFilename, false /* fFatal */);
1396	if (RT_FAILURE(rc))
1397	LogRel(("SUPR3HardenedVerifyFile: %s: Verification of \"%s\" failed, rc=%Rrc\n", pszMsg, pszFilename, rc));
1398	return rc;
1399	#else
1400	return VINF_SUCCESS;
1401	#endif
1402	}
1403
1404
1405	SUPR3DECL(int) SUPLoadModule(const char pszFilename, const char pszModule, void **ppvImageBase)
1406	{
1407	int rc = VINF_SUCCESS;
1408	#ifdef VBOX_WITH_HARDENING
1409	/*
1410	* Check that the module can be trusted.
1411	*/
1412	rc = supR3HardenedVerifyFile(pszFilename, false /* fFatal */);
1413	#endif
1414	if (RT_SUCCESS(rc))
1415	rc = supLoadModule(pszFilename, pszModule, NULL, ppvImageBase);
1416	else
1417	LogRel(("SUPLoadModule: Verification of \"%s\" failed, rc=%Rrc\n", rc));
1418	return rc;
1419	}
1420
1421
1422	SUPR3DECL(int) SUPR3LoadServiceModule(const char pszFilename, const char pszModule,
1423	const char pszSrvReqHandler, void *ppvImageBase)
1424	{
1425	int rc = VINF_SUCCESS;
1426	AssertPtrReturn(pszSrvReqHandler, VERR_INVALID_PARAMETER);
1427
1428	#ifdef VBOX_WITH_HARDENING
1429	/*
1430	* Check that the module can be trusted.
1431	*/
1432	rc = supR3HardenedVerifyFile(pszFilename, false /* fFatal */);
1433	#endif
1434	if (RT_SUCCESS(rc))
1435	rc = supLoadModule(pszFilename, pszModule, pszSrvReqHandler, ppvImageBase);
1436	else
1437	LogRel(("SUPR3LoadServiceModule: Verification of \"%s\" failed, rc=%Rrc\n", rc));
1438	return rc;
1439	}
1440
1441
1442	/**
1443	* Resolve an external symbol during RTLdrGetBits().
1444	*
1445	* @returns VBox status code.
1446	* @param hLdrMod The loader module handle.
1447	* @param pszModule Module name.
1448	* @param pszSymbol Symbol name, NULL if uSymbol should be used.
1449	* @param uSymbol Symbol ordinal, ~0 if pszSymbol should be used.
1450	* @param pValue Where to store the symbol value (address).
1451	* @param pvUser User argument.
1452	*/
1453	static DECLCALLBACK(int) supLoadModuleResolveImport(RTLDRMOD hLdrMod, const char *pszModule,
1454	const char pszSymbol, unsigned uSymbol, RTUINTPTR pValue, void *pvUser)
1455	{
1456	AssertPtr(pValue);
1457	AssertPtr(pvUser);
1458
1459	/*
1460	* Only SUPR0 and VMMR0.r0
1461	*/
1462	if ( pszModule
1463	&& *pszModule
1464	&& strcmp(pszModule, "SUPR0.dll")
1465	&& strcmp(pszModule, "VMMR0.r0"))
1466	{
1467	AssertMsgFailed(("%s is importing from %s! (expected 'SUPR0.dll' or 'VMMR0.r0', case-sensitiv)\n", pvUser, pszModule));
1468	return VERR_SYMBOL_NOT_FOUND;
1469	}
1470
1471	/*
1472	* No ordinals.
1473	*/
1474	if (pszSymbol < (const char*)0x10000)
1475	{
1476	AssertMsgFailed(("%s is importing by ordinal (ord=%d)\n", pvUser, (int)(uintptr_t)pszSymbol));
1477	return VERR_SYMBOL_NOT_FOUND;
1478	}
1479
1480	/*
1481	* Lookup symbol.
1482	*/
1483	/* skip the 64-bit ELF import prefix first. */
1484	if (!strncmp(pszSymbol, "SUPR0$", sizeof("SUPR0$") - 1))
1485	pszSymbol += sizeof("SUPR0$") - 1;
1486
1487	/*
1488	* Check the VMMR0.r0 module if loaded.
1489	*/
1490	/** @todo call the SUPLoadModule caller.... */
1491	/** @todo proper reference counting and such. */
1492	if (g_pvVMMR0 != NIL_RTR0PTR)
1493	{
1494	void *pvValue;
1495	if (!SUPGetSymbolR0((void *)g_pvVMMR0, pszSymbol, &pvValue))
1496	{
1497	*pValue = (uintptr_t)pvValue;
1498	return VINF_SUCCESS;
1499	}
1500	}
1501
1502	/* iterate the function table. */
1503	int c = g_pFunctions->u.Out.cFunctions;
1504	PSUPFUNC pFunc = &g_pFunctions->u.Out.aFunctions[0];
1505	while (c-- > 0)
1506	{
1507	if (!strcmp(pFunc->szName, pszSymbol))
1508	{
1509	*pValue = (uintptr_t)pFunc->pfn;
1510	return VINF_SUCCESS;
1511	}
1512	pFunc++;
1513	}
1514
1515	/*
1516	* The GIP.
1517	*/
1518	/** @todo R0 mapping? */
1519	if ( pszSymbol
1520	&& g_pSUPGlobalInfoPage
1521	&& g_pSUPGlobalInfoPageR0
1522	&& !strcmp(pszSymbol, "g_SUPGlobalInfoPage"))
1523	{
1524	*pValue = (uintptr_t)g_pSUPGlobalInfoPageR0;
1525	return VINF_SUCCESS;
1526	}
1527
1528	/*
1529	* Despair.
1530	*/
1531	c = g_pFunctions->u.Out.cFunctions;
1532	pFunc = &g_pFunctions->u.Out.aFunctions[0];
1533	while (c-- > 0)
1534	{
1535	AssertMsg2("%d: %s\n", g_pFunctions->u.Out.cFunctions - c, pFunc->szName);
1536	pFunc++;
1537	}
1538
1539	AssertMsg2("%s is importing %s which we couldn't find\n", pvUser, pszSymbol);
1540	AssertMsgFailed(("%s is importing %s which we couldn't find\n", pvUser, pszSymbol));
1541	if (g_u32FakeMode)
1542	{
1543	*pValue = 0xdeadbeef;
1544	return VINF_SUCCESS;
1545	}
1546	return VERR_SYMBOL_NOT_FOUND;
1547	}
1548
1549
1550	/** Argument package for supLoadModuleCalcSizeCB. */
1551	typedef struct SUPLDRCALCSIZEARGS
1552	{
1553	size_t cbStrings;
1554	uint32_t cSymbols;
1555	size_t cbImage;
1556	} SUPLDRCALCSIZEARGS, *PSUPLDRCALCSIZEARGS;
1557
1558	/**
1559	* Callback used to calculate the image size.
1560	* @return VINF_SUCCESS
1561	*/
1562	static DECLCALLBACK(int) supLoadModuleCalcSizeCB(RTLDRMOD hLdrMod, const char pszSymbol, unsigned uSymbol, RTUINTPTR Value, void pvUser)
1563	{
1564	PSUPLDRCALCSIZEARGS pArgs = (PSUPLDRCALCSIZEARGS)pvUser;
1565	if ( pszSymbol != NULL
1566	&& *pszSymbol
1567	&& Value <= pArgs->cbImage)
1568	{
1569	pArgs->cSymbols++;
1570	pArgs->cbStrings += strlen(pszSymbol) + 1;
1571	}
1572	return VINF_SUCCESS;
1573	}
1574
1575
1576	/** Argument package for supLoadModuleCreateTabsCB. */
1577	typedef struct SUPLDRCREATETABSARGS
1578	{
1579	size_t cbImage;
1580	PSUPLDRSYM pSym;
1581	char *pszBase;
1582	char *psz;
1583	} SUPLDRCREATETABSARGS, *PSUPLDRCREATETABSARGS;
1584
1585	/**
1586	* Callback used to calculate the image size.
1587	* @return VINF_SUCCESS
1588	*/
1589	static DECLCALLBACK(int) supLoadModuleCreateTabsCB(RTLDRMOD hLdrMod, const char pszSymbol, unsigned uSymbol, RTUINTPTR Value, void pvUser)
1590	{
1591	PSUPLDRCREATETABSARGS pArgs = (PSUPLDRCREATETABSARGS)pvUser;
1592	if ( pszSymbol != NULL
1593	&& *pszSymbol
1594	&& Value <= pArgs->cbImage)
1595	{
1596	pArgs->pSym->offSymbol = (uint32_t)Value;
1597	pArgs->pSym->offName = pArgs->psz - pArgs->pszBase;
1598	pArgs->pSym++;
1599
1600	size_t cbCopy = strlen(pszSymbol) + 1;
1601	memcpy(pArgs->psz, pszSymbol, cbCopy);
1602	pArgs->psz += cbCopy;
1603	}
1604	return VINF_SUCCESS;
1605	}
1606
1607
1608	/**
1609	* Worker for SUPLoadModule().
1610	*
1611	* @returns VBox status code.
1612	* @param pszFilename Name of the VMMR0 image file
1613	*/
1614	static int supLoadModule(const char pszFilename, const char pszModule, const char pszSrvReqHandler, void *ppvImageBase)
1615	{
1616	/*
1617	* Validate input.
1618	*/
1619	AssertPtrReturn(pszFilename, VERR_INVALID_PARAMETER);
1620	AssertPtrReturn(pszModule, VERR_INVALID_PARAMETER);
1621	AssertPtrReturn(ppvImageBase, VERR_INVALID_PARAMETER);
1622	AssertReturn(strlen(pszModule) < RT_SIZEOFMEMB(SUPLDROPEN, u.In.szName), VERR_FILENAME_TOO_LONG);
1623
1624	const bool fIsVMMR0 = !strcmp(pszModule, "VMMR0.r0");
1625	AssertReturn(!pszSrvReqHandler \|\| !fIsVMMR0, VERR_INTERNAL_ERROR);
1626	*ppvImageBase = NULL;
1627
1628	/*
1629	* Open image file and figure its size.
1630	*/
1631	RTLDRMOD hLdrMod;
1632	int rc = RTLdrOpen(pszFilename, 0, RTLDRARCH_HOST, &hLdrMod);
1633	if (!RT_SUCCESS(rc))
1634	return rc;
1635
1636	SUPLDRCALCSIZEARGS CalcArgs;
1637	CalcArgs.cbStrings = 0;
1638	CalcArgs.cSymbols = 0;
1639	CalcArgs.cbImage = RTLdrSize(hLdrMod);
1640	rc = RTLdrEnumSymbols(hLdrMod, 0, NULL, 0, supLoadModuleCalcSizeCB, &CalcArgs);
1641	if (RT_SUCCESS(rc))
1642	{
1643	const uint32_t offSymTab = RT_ALIGN_32(CalcArgs.cbImage, 8);
1644	const uint32_t offStrTab = offSymTab + CalcArgs.cSymbols * sizeof(SUPLDRSYM);
1645	const uint32_t cbImage = RT_ALIGN_32(offStrTab + CalcArgs.cbStrings, 8);
1646
1647	/*
1648	* Open the R0 image.
1649	*/
1650	SUPLDROPEN OpenReq;
1651	OpenReq.Hdr.u32Cookie = g_u32Cookie;
1652	OpenReq.Hdr.u32SessionCookie = g_u32SessionCookie;
1653	OpenReq.Hdr.cbIn = SUP_IOCTL_LDR_OPEN_SIZE_IN;
1654	OpenReq.Hdr.cbOut = SUP_IOCTL_LDR_OPEN_SIZE_OUT;
1655	OpenReq.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1656	OpenReq.Hdr.rc = VERR_INTERNAL_ERROR;
1657	OpenReq.u.In.cbImage = cbImage;
1658	strcpy(OpenReq.u.In.szName, pszModule);
1659	if (!g_u32FakeMode)
1660	{
1661	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LDR_OPEN, &OpenReq, SUP_IOCTL_LDR_OPEN_SIZE);
1662	if (RT_SUCCESS(rc))
1663	rc = OpenReq.Hdr.rc;
1664	}
1665	else
1666	{
1667	OpenReq.u.Out.fNeedsLoading = true;
1668	OpenReq.u.Out.pvImageBase = 0xef423420;
1669	}
1670	ppvImageBase = (void )OpenReq.u.Out.pvImageBase;
1671	if ( RT_SUCCESS(rc)
1672	&& OpenReq.u.Out.fNeedsLoading)
1673	{
1674	/*
1675	* We need to load it.
1676	* Allocate memory for the image bits.
1677	*/
1678	PSUPLDRLOAD pLoadReq = (PSUPLDRLOAD)RTMemTmpAlloc(SUP_IOCTL_LDR_LOAD_SIZE(cbImage));
1679	if (pLoadReq)
1680	{
1681	/*
1682	* Get the image bits.
1683	*/
1684	rc = RTLdrGetBits(hLdrMod, &pLoadReq->u.In.achImage[0], (uintptr_t)OpenReq.u.Out.pvImageBase,
1685	supLoadModuleResolveImport, (void *)pszModule);
1686
1687	if (RT_SUCCESS(rc))
1688	{
1689	/*
1690	* Get the entry points.
1691	*/
1692	RTUINTPTR VMMR0EntryInt = 0;
1693	RTUINTPTR VMMR0EntryFast = 0;
1694	RTUINTPTR VMMR0EntryEx = 0;
1695	RTUINTPTR SrvReqHandler = 0;
1696	RTUINTPTR ModuleInit = 0;
1697	RTUINTPTR ModuleTerm = 0;
1698	if (fIsVMMR0)
1699	{
1700	rc = RTLdrGetSymbolEx(hLdrMod, &pLoadReq->u.In.achImage[0], (uintptr_t)OpenReq.u.Out.pvImageBase, "VMMR0EntryInt", &VMMR0EntryInt);
1701	if (RT_SUCCESS(rc))
1702	rc = RTLdrGetSymbolEx(hLdrMod, &pLoadReq->u.In.achImage[0], (uintptr_t)OpenReq.u.Out.pvImageBase, "VMMR0EntryFast", &VMMR0EntryFast);
1703	if (RT_SUCCESS(rc))
1704	rc = RTLdrGetSymbolEx(hLdrMod, &pLoadReq->u.In.achImage[0], (uintptr_t)OpenReq.u.Out.pvImageBase, "VMMR0EntryEx", &VMMR0EntryEx);
1705	}
1706	else if (pszSrvReqHandler)
1707	rc = RTLdrGetSymbolEx(hLdrMod, &pLoadReq->u.In.achImage[0], (uintptr_t)OpenReq.u.Out.pvImageBase, pszSrvReqHandler, &SrvReqHandler);
1708	if (RT_SUCCESS(rc))
1709	{
1710	int rc2 = RTLdrGetSymbolEx(hLdrMod, &pLoadReq->u.In.achImage[0], (uintptr_t)OpenReq.u.Out.pvImageBase, "ModuleInit", &ModuleInit);
1711	if (RT_FAILURE(rc2))
1712	ModuleInit = 0;
1713
1714	rc2 = RTLdrGetSymbolEx(hLdrMod, &pLoadReq->u.In.achImage[0], (uintptr_t)OpenReq.u.Out.pvImageBase, "ModuleTerm", &ModuleTerm);
1715	if (RT_FAILURE(rc2))
1716	ModuleTerm = 0;
1717	}
1718	if (RT_SUCCESS(rc))
1719	{
1720	/*
1721	* Create the symbol and string tables.
1722	*/
1723	SUPLDRCREATETABSARGS CreateArgs;
1724	CreateArgs.cbImage = CalcArgs.cbImage;
1725	CreateArgs.pSym = (PSUPLDRSYM)&pLoadReq->u.In.achImage[offSymTab];
1726	CreateArgs.pszBase = (char *)&pLoadReq->u.In.achImage[offStrTab];
1727	CreateArgs.psz = CreateArgs.pszBase;
1728	rc = RTLdrEnumSymbols(hLdrMod, 0, NULL, 0, supLoadModuleCreateTabsCB, &CreateArgs);
1729	if (RT_SUCCESS(rc))
1730	{
1731	AssertRelease((size_t)(CreateArgs.psz - CreateArgs.pszBase) <= CalcArgs.cbStrings);
1732	AssertRelease((size_t)(CreateArgs.pSym - (PSUPLDRSYM)&pLoadReq->u.In.achImage[offSymTab]) <= CalcArgs.cSymbols);
1733
1734	/*
1735	* Upload the image.
1736	*/
1737	pLoadReq->Hdr.u32Cookie = g_u32Cookie;
1738	pLoadReq->Hdr.u32SessionCookie = g_u32SessionCookie;
1739	pLoadReq->Hdr.cbIn = SUP_IOCTL_LDR_LOAD_SIZE_IN(cbImage);
1740	pLoadReq->Hdr.cbOut = SUP_IOCTL_LDR_LOAD_SIZE_OUT;
1741	pLoadReq->Hdr.fFlags = SUPREQHDR_FLAGS_MAGIC \| SUPREQHDR_FLAGS_EXTRA_IN;
1742	pLoadReq->Hdr.rc = VERR_INTERNAL_ERROR;
1743
1744	pLoadReq->u.In.pfnModuleInit = (RTR0PTR)ModuleInit;
1745	pLoadReq->u.In.pfnModuleTerm = (RTR0PTR)ModuleTerm;
1746	if (fIsVMMR0)
1747	{
1748	pLoadReq->u.In.eEPType = SUPLDRLOADEP_VMMR0;
1749	pLoadReq->u.In.EP.VMMR0.pvVMMR0 = OpenReq.u.Out.pvImageBase;
1750	pLoadReq->u.In.EP.VMMR0.pvVMMR0EntryInt = (RTR0PTR)VMMR0EntryInt;
1751	pLoadReq->u.In.EP.VMMR0.pvVMMR0EntryFast= (RTR0PTR)VMMR0EntryFast;
1752	pLoadReq->u.In.EP.VMMR0.pvVMMR0EntryEx = (RTR0PTR)VMMR0EntryEx;
1753	}
1754	else if (pszSrvReqHandler)
1755	{
1756	pLoadReq->u.In.eEPType = SUPLDRLOADEP_SERVICE;
1757	pLoadReq->u.In.EP.Service.pfnServiceReq = (RTR0PTR)SrvReqHandler;
1758	pLoadReq->u.In.EP.Service.apvReserved[0] = NIL_RTR0PTR;
1759	pLoadReq->u.In.EP.Service.apvReserved[1] = NIL_RTR0PTR;
1760	pLoadReq->u.In.EP.Service.apvReserved[2] = NIL_RTR0PTR;
1761	}
1762	else
1763	pLoadReq->u.In.eEPType = SUPLDRLOADEP_NOTHING;
1764	pLoadReq->u.In.offStrTab = offStrTab;
1765	pLoadReq->u.In.cbStrTab = (uint32_t)CalcArgs.cbStrings;
1766	AssertRelease(pLoadReq->u.In.cbStrTab == CalcArgs.cbStrings);
1767	pLoadReq->u.In.offSymbols = offSymTab;
1768	pLoadReq->u.In.cSymbols = CalcArgs.cSymbols;
1769	pLoadReq->u.In.cbImage = cbImage;
1770	pLoadReq->u.In.pvImageBase = OpenReq.u.Out.pvImageBase;
1771	if (!g_u32FakeMode)
1772	{
1773	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LDR_LOAD, pLoadReq, SUP_IOCTL_LDR_LOAD_SIZE(cbImage));
1774	if (RT_SUCCESS(rc))
1775	rc = pLoadReq->Hdr.rc;
1776	}
1777	else
1778	rc = VINF_SUCCESS;
1779	if ( RT_SUCCESS(rc)
1780	\|\| rc == VERR_ALREADY_LOADED /* A competing process. */
1781	)
1782	{
1783	LogRel(("SUP: Loaded %s (%s) at %#p - ModuleInit at %RTptr and ModuleTerm at %RTptr\n", pszModule, pszFilename,
1784	OpenReq.u.Out.pvImageBase, ModuleInit, ModuleTerm));
1785	if (fIsVMMR0)
1786	{
1787	g_pvVMMR0 = OpenReq.u.Out.pvImageBase;
1788	LogRel(("SUP: VMMR0EntryEx located at %RTptr, VMMR0EntryFast at %RTptr and VMMR0EntryInt at %RTptr\n",
1789	VMMR0EntryEx, VMMR0EntryFast, VMMR0EntryInt));
1790	}
1791	#ifdef RT_OS_WINDOWS
1792	LogRel(("SUP: windbg> .reload /f %s=%#p\n", pszFilename, OpenReq.u.Out.pvImageBase));
1793	#endif
1794
1795	RTMemTmpFree(pLoadReq);
1796	RTLdrClose(hLdrMod);
1797	return VINF_SUCCESS;
1798	}
1799	}
1800	}
1801	}
1802	RTMemTmpFree(pLoadReq);
1803	}
1804	else
1805	{
1806	AssertMsgFailed(("failed to allocated %d bytes for SUPLDRLOAD_IN structure!\n", SUP_IOCTL_LDR_LOAD_SIZE(cbImage)));
1807	rc = VERR_NO_TMP_MEMORY;
1808	}
1809	}
1810	else if (RT_SUCCESS(rc))
1811	{
1812	if (fIsVMMR0)
1813	g_pvVMMR0 = OpenReq.u.Out.pvImageBase;
1814	LogRel(("SUP: Opened %s (%s) at %#p.\n", pszModule, pszFilename, OpenReq.u.Out.pvImageBase));
1815	#ifdef RT_OS_WINDOWS
1816	LogRel(("SUP: windbg> .reload /f %s=%#p\n", pszFilename, OpenReq.u.Out.pvImageBase));
1817	#endif
1818	}
1819	}
1820	RTLdrClose(hLdrMod);
1821	return rc;
1822	}
1823
1824
1825	SUPR3DECL(int) SUPFreeModule(void *pvImageBase)
1826	{
1827	/* fake */
1828	if (RT_UNLIKELY(g_u32FakeMode))
1829	{
1830	g_pvVMMR0 = NIL_RTR0PTR;
1831	return VINF_SUCCESS;
1832	}
1833
1834	/*
1835	* Free the requested module.
1836	*/
1837	SUPLDRFREE Req;
1838	Req.Hdr.u32Cookie = g_u32Cookie;
1839	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1840	Req.Hdr.cbIn = SUP_IOCTL_LDR_FREE_SIZE_IN;
1841	Req.Hdr.cbOut = SUP_IOCTL_LDR_FREE_SIZE_OUT;
1842	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1843	Req.Hdr.rc = VERR_INTERNAL_ERROR;
1844	Req.u.In.pvImageBase = (RTR0PTR)pvImageBase;
1845	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LDR_FREE, &Req, SUP_IOCTL_LDR_FREE_SIZE);
1846	if (RT_SUCCESS(rc))
1847	rc = Req.Hdr.rc;
1848	if ( RT_SUCCESS(rc)
1849	&& (RTR0PTR)pvImageBase == g_pvVMMR0)
1850	g_pvVMMR0 = NIL_RTR0PTR;
1851	return rc;
1852	}
1853
1854
1855	SUPR3DECL(int) SUPGetSymbolR0(void pvImageBase, const char pszSymbol, void **ppvValue)
1856	{
1857	*ppvValue = NULL;
1858
1859	/* fake */
1860	if (RT_UNLIKELY(g_u32FakeMode))
1861	{
1862	ppvValue = (void )(uintptr_t)0xdeadf00d;
1863	return VINF_SUCCESS;
1864	}
1865
1866	/*
1867	* Do ioctl.
1868	*/
1869	SUPLDRGETSYMBOL Req;
1870	Req.Hdr.u32Cookie = g_u32Cookie;
1871	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1872	Req.Hdr.cbIn = SUP_IOCTL_LDR_GET_SYMBOL_SIZE_IN;
1873	Req.Hdr.cbOut = SUP_IOCTL_LDR_GET_SYMBOL_SIZE_OUT;
1874	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1875	Req.Hdr.rc = VERR_INTERNAL_ERROR;
1876	Req.u.In.pvImageBase = (RTR0PTR)pvImageBase;
1877	size_t cchSymbol = strlen(pszSymbol);
1878	if (cchSymbol >= sizeof(Req.u.In.szSymbol))
1879	return VERR_SYMBOL_NOT_FOUND;
1880	memcpy(Req.u.In.szSymbol, pszSymbol, cchSymbol + 1);
1881	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LDR_GET_SYMBOL, &Req, SUP_IOCTL_LDR_GET_SYMBOL_SIZE);
1882	if (RT_SUCCESS(rc))
1883	rc = Req.Hdr.rc;
1884	if (RT_SUCCESS(rc))
1885	ppvValue = (void )Req.u.Out.pvSymbol;
1886	return rc;
1887	}
1888
1889
1890	SUPR3DECL(int) SUPLoadVMM(const char *pszFilename)
1891	{
1892	void *pvImageBase;
1893	return SUPLoadModule(pszFilename, "VMMR0.r0", &pvImageBase);
1894	}
1895
1896
1897	SUPR3DECL(int) SUPUnloadVMM(void)
1898	{
1899	return SUPFreeModule((void*)g_pvVMMR0);
1900	}
1901
1902
1903	SUPR3DECL(int) SUPGipGetPhys(PRTHCPHYS pHCPhys)
1904	{
1905	if (g_pSUPGlobalInfoPage)
1906	{
1907	*pHCPhys = g_HCPhysSUPGlobalInfoPage;
1908	return VINF_SUCCESS;
1909	}
1910	*pHCPhys = NIL_RTHCPHYS;
1911	return VERR_WRONG_ORDER;
1912	}
1913
1914
1915	/**
1916	* Worker for SUPR3HardenedLdrLoad and SUPR3HardenedLdrLoadAppPriv.
1917	*
1918	* @returns iprt status code.
1919	* @param pszFilename The full file name.
1920	* @param phLdrMod Where to store the handle to the loaded module.
1921	*/
1922	static int supR3HardenedLdrLoadIt(const char *pszFilename, PRTLDRMOD phLdrMod)
1923	{
1924	#ifdef VBOX_WITH_HARDENING
1925	/*
1926	* Verify the image file.
1927	*/
1928	int rc = supR3HardenedVerifyFile(pszFilename, false /* fFatal */);
1929	if (RT_FAILURE(rc))
1930	{
1931	LogRel(("supR3HardenedLdrLoadIt: Verification of \"%s\" failed, rc=%Rrc\n", pszFilename, rc));
1932	return rc;
1933	}
1934	#endif
1935
1936	/*
1937	* Try load it.
1938	*/
1939	return RTLdrLoad(pszFilename, phLdrMod);
1940	}
1941
1942
1943	SUPR3DECL(int) SUPR3HardenedLdrLoad(const char *pszFilename, PRTLDRMOD phLdrMod)
1944	{
1945	/*
1946	* Validate input.
1947	*/
1948	AssertPtrReturn(pszFilename, VERR_INVALID_PARAMETER);
1949	AssertPtrReturn(phLdrMod, VERR_INVALID_PARAMETER);
1950	*phLdrMod = NIL_RTLDRMOD;
1951	AssertReturn(RTPathHavePath(pszFilename), VERR_INVALID_PARAMETER);
1952
1953	/*
1954	* Add the default extension if it's missing.
1955	*/
1956	if (!RTPathHaveExt(pszFilename))
1957	{
1958	const char *pszSuff = RTLdrGetSuff();
1959	size_t cchSuff = strlen(pszSuff);
1960	size_t cchFilename = strlen(pszFilename);
1961	char psz = (char )alloca(cchFilename + cchSuff + 1);
1962	AssertReturn(psz, VERR_NO_TMP_MEMORY);
1963	memcpy(psz, pszFilename, cchFilename);
1964	memcpy(psz + cchFilename, pszSuff, cchSuff + 1);
1965	pszFilename = psz;
1966	}
1967
1968	/*
1969	* Pass it on to the common library loader.
1970	*/
1971	return supR3HardenedLdrLoadIt(pszFilename, phLdrMod);
1972	}
1973
1974
1975	SUPR3DECL(int) SUPR3HardenedLdrLoadAppPriv(const char *pszFilename, PRTLDRMOD phLdrMod)
1976	{
1977	LogFlow(("SUPR3HardenedLdrLoadAppPriv: pszFilename=%p:{%s} phLdrMod=%p\n", pszFilename, pszFilename, phLdrMod));
1978
1979	/*
1980	* Validate input.
1981	*/
1982	AssertPtrReturn(phLdrMod, VERR_INVALID_PARAMETER);
1983	*phLdrMod = NIL_RTLDRMOD;
1984	AssertPtrReturn(pszFilename, VERR_INVALID_PARAMETER);
1985	AssertMsgReturn(!RTPathHavePath(pszFilename), ("%s\n", pszFilename), VERR_INVALID_PARAMETER);
1986
1987	/*
1988	* Check the filename.
1989	*/
1990	size_t cchFilename = strlen(pszFilename);
1991	AssertMsgReturn(cchFilename < (RTPATH_MAX / 4) * 3, ("%zu\n", cchFilename), VERR_INVALID_PARAMETER);
1992
1993	const char *pszExt = "";
1994	size_t cchExt = 0;
1995	if (!RTPathHaveExt(pszFilename))
1996	{
1997	pszExt = RTLdrGetSuff();
1998	cchExt = strlen(pszExt);
1999	}
2000
2001	/*
2002	* Construct the private arch path and check if the file exists.
2003	*/
2004	char szPath[RTPATH_MAX];
2005	int rc = RTPathAppPrivateArch(szPath, sizeof(szPath) - 1 - cchExt - cchFilename);
2006	AssertRCReturn(rc, rc);
2007
2008	char *psz = strchr(szPath, '\0');
2009	*psz++ = RTPATH_SLASH;
2010	memcpy(psz, pszFilename, cchFilename);
2011	psz += cchFilename;
2012	memcpy(psz, pszExt, cchExt + 1);
2013
2014	if (!RTPathExists(szPath))
2015	{
2016	LogRel(("SUPR3HardenedLdrLoadAppPriv: \"%s\" not found\n", szPath));
2017	return VERR_FILE_NOT_FOUND;
2018	}
2019
2020	/*
2021	* Pass it on to SUPR3HardenedLdrLoad.
2022	*/
2023	rc = SUPR3HardenedLdrLoad(szPath, phLdrMod);
2024
2025	LogFlow(("SUPR3HardenedLdrLoadAppPriv: returns %Rrc\n", rc));
2026	return rc;
2027	}
2028

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source: vbox/trunk/src/VBox/HostDrivers/Support/SUPLib.cpp@ 19257

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