SUPLib.cpp@ 19167

Last change on this file since 19167 was 18761, checked in by vboxsync, 16 years ago
SUPR3Init: Assertion must go or we'll die in funny places when RTR3Init calls us.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
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1	/* $Id: SUPLib.cpp 18761 2009-04-06 14:11:49Z 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 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.uOperation = uOperation;
612	Req.u.In.u64Arg = u64Arg;
613	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CALL_VMMR0(0), &Req, SUP_IOCTL_CALL_VMMR0_SIZE(0));
614	if (RT_SUCCESS(rc))
615	rc = Req.Hdr.rc;
616	}
617	else if (SUP_IOCTL_CALL_VMMR0_SIZE(pReqHdr->cbReq) < _4K) /* FreeBSD won't copy more than 4K. */
618	{
619	AssertPtrReturn(pReqHdr, VERR_INVALID_POINTER);
620	AssertReturn(pReqHdr->u32Magic == SUPVMMR0REQHDR_MAGIC, VERR_INVALID_MAGIC);
621	const size_t cbReq = pReqHdr->cbReq;
622
623	PSUPCALLVMMR0 pReq = (PSUPCALLVMMR0)alloca(SUP_IOCTL_CALL_VMMR0_SIZE(cbReq));
624	pReq->Hdr.u32Cookie = g_u32Cookie;
625	pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
626	pReq->Hdr.cbIn = SUP_IOCTL_CALL_VMMR0_SIZE_IN(cbReq);
627	pReq->Hdr.cbOut = SUP_IOCTL_CALL_VMMR0_SIZE_OUT(cbReq);
628	pReq->Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
629	pReq->Hdr.rc = VERR_INTERNAL_ERROR;
630	pReq->u.In.pVMR0 = pVMR0;
631	pReq->u.In.uOperation = uOperation;
632	pReq->u.In.u64Arg = u64Arg;
633	memcpy(&pReq->abReqPkt[0], pReqHdr, cbReq);
634	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CALL_VMMR0(cbReq), pReq, SUP_IOCTL_CALL_VMMR0_SIZE(cbReq));
635	if (RT_SUCCESS(rc))
636	rc = pReq->Hdr.rc;
637	memcpy(pReqHdr, &pReq->abReqPkt[0], cbReq);
638	}
639	else /** @todo may have to remove the size limits one this request... */
640	AssertMsgFailedReturn(("cbReq=%#x\n", pReqHdr->cbReq), VERR_INTERNAL_ERROR);
641	return rc;
642	}
643
644
645	SUPR3DECL(int) SUPCallVMMR0(PVMR0 pVMR0, unsigned uOperation, void *pvArg)
646	{
647	/*
648	* The following operations don't belong here.
649	*/
650	AssertMsgReturn( uOperation != SUP_VMMR0_DO_RAW_RUN
651	&& uOperation != SUP_VMMR0_DO_HWACC_RUN
652	&& uOperation != SUP_VMMR0_DO_NOP,
653	("%#x\n", uOperation),
654	VERR_INTERNAL_ERROR);
655	return SUPCallVMMR0Ex(pVMR0, uOperation, (uintptr_t)pvArg, NULL);
656	}
657
658
659	SUPR3DECL(int) SUPSetVMForFastIOCtl(PVMR0 pVMR0)
660	{
661	if (RT_UNLIKELY(g_u32FakeMode))
662	return VINF_SUCCESS;
663
664	SUPSETVMFORFAST Req;
665	Req.Hdr.u32Cookie = g_u32Cookie;
666	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
667	Req.Hdr.cbIn = SUP_IOCTL_SET_VM_FOR_FAST_SIZE_IN;
668	Req.Hdr.cbOut = SUP_IOCTL_SET_VM_FOR_FAST_SIZE_OUT;
669	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
670	Req.Hdr.rc = VERR_INTERNAL_ERROR;
671	Req.u.In.pVMR0 = pVMR0;
672	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_SET_VM_FOR_FAST, &Req, SUP_IOCTL_SET_VM_FOR_FAST_SIZE);
673	if (RT_SUCCESS(rc))
674	rc = Req.Hdr.rc;
675	return rc;
676	}
677
678
679	SUPR3DECL(int) SUPR3CallR0Service(const char *pszService, size_t cchService, uint32_t uOperation, uint64_t u64Arg, PSUPR0SERVICEREQHDR pReqHdr)
680	{
681	AssertReturn(cchService < RT_SIZEOFMEMB(SUPCALLSERVICE, u.In.szName), VERR_INVALID_PARAMETER);
682	Assert(strlen(pszService) == cchService);
683
684	/* fake */
685	if (RT_UNLIKELY(g_u32FakeMode))
686	return VERR_NOT_SUPPORTED;
687
688	int rc;
689	if (!pReqHdr)
690	{
691	/* no data. */
692	SUPCALLSERVICE Req;
693	Req.Hdr.u32Cookie = g_u32Cookie;
694	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
695	Req.Hdr.cbIn = SUP_IOCTL_CALL_SERVICE_SIZE_IN(0);
696	Req.Hdr.cbOut = SUP_IOCTL_CALL_SERVICE_SIZE_OUT(0);
697	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
698	Req.Hdr.rc = VERR_INTERNAL_ERROR;
699	memcpy(Req.u.In.szName, pszService, cchService);
700	Req.u.In.szName[cchService] = '\0';
701	Req.u.In.uOperation = uOperation;
702	Req.u.In.u64Arg = u64Arg;
703	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CALL_SERVICE(0), &Req, SUP_IOCTL_CALL_SERVICE_SIZE(0));
704	if (RT_SUCCESS(rc))
705	rc = Req.Hdr.rc;
706	}
707	else if (SUP_IOCTL_CALL_SERVICE_SIZE(pReqHdr->cbReq) < _4K) /* FreeBSD won't copy more than 4K. */
708	{
709	AssertPtrReturn(pReqHdr, VERR_INVALID_POINTER);
710	AssertReturn(pReqHdr->u32Magic == SUPR0SERVICEREQHDR_MAGIC, VERR_INVALID_MAGIC);
711	const size_t cbReq = pReqHdr->cbReq;
712
713	PSUPCALLSERVICE pReq = (PSUPCALLSERVICE)alloca(SUP_IOCTL_CALL_SERVICE_SIZE(cbReq));
714	pReq->Hdr.u32Cookie = g_u32Cookie;
715	pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
716	pReq->Hdr.cbIn = SUP_IOCTL_CALL_SERVICE_SIZE_IN(cbReq);
717	pReq->Hdr.cbOut = SUP_IOCTL_CALL_SERVICE_SIZE_OUT(cbReq);
718	pReq->Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
719	pReq->Hdr.rc = VERR_INTERNAL_ERROR;
720	memcpy(pReq->u.In.szName, pszService, cchService);
721	pReq->u.In.szName[cchService] = '\0';
722	pReq->u.In.uOperation = uOperation;
723	pReq->u.In.u64Arg = u64Arg;
724	memcpy(&pReq->abReqPkt[0], pReqHdr, cbReq);
725	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CALL_SERVICE(cbReq), pReq, SUP_IOCTL_CALL_SERVICE_SIZE(cbReq));
726	if (RT_SUCCESS(rc))
727	rc = pReq->Hdr.rc;
728	memcpy(pReqHdr, &pReq->abReqPkt[0], cbReq);
729	}
730	else /** @todo may have to remove the size limits one this request... */
731	AssertMsgFailedReturn(("cbReq=%#x\n", pReqHdr->cbReq), VERR_INTERNAL_ERROR);
732	return rc;
733	}
734
735
736	/**
737	* Worker for the SUPR3Logger* APIs.
738	*
739	* @returns VBox status code.
740	* @param enmWhich Which logger.
741	* @param fWhat What to do with the logger.
742	* @param pszFlags The flags settings.
743	* @param pszGroups The groups settings.
744	* @param pszDest The destionation specificier.
745	*/
746	static int supR3LoggerSettings(SUPLOGGER enmWhich, uint32_t fWhat, const char pszFlags, const char pszGroups, const char *pszDest)
747	{
748	uint32_t const cchFlags = pszFlags ? (uint32_t)strlen(pszFlags) : 0;
749	uint32_t const cchGroups = pszGroups ? (uint32_t)strlen(pszGroups) : 0;
750	uint32_t const cchDest = pszDest ? (uint32_t)strlen(pszDest) : 0;
751	uint32_t const cbStrTab = cchFlags + !!cchFlags
752	+ cchGroups + !!cchGroups
753	+ cchDest + !!cchDest
754	+ (!cchFlags && !cchGroups && !cchDest);
755
756	PSUPLOGGERSETTINGS pReq = (PSUPLOGGERSETTINGS)alloca(SUP_IOCTL_LOGGER_SETTINGS_SIZE(cbStrTab));
757	pReq->Hdr.u32Cookie = g_u32Cookie;
758	pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
759	pReq->Hdr.cbIn = SUP_IOCTL_LOGGER_SETTINGS_SIZE_IN(cbStrTab);
760	pReq->Hdr.cbOut = SUP_IOCTL_LOGGER_SETTINGS_SIZE_OUT;
761	pReq->Hdr.fFlags= SUPREQHDR_FLAGS_DEFAULT;
762	pReq->Hdr.rc = VERR_INTERNAL_ERROR;
763	switch (enmWhich)
764	{
765	case SUPLOGGER_DEBUG: pReq->u.In.fWhich = SUPLOGGERSETTINGS_WHICH_DEBUG; break;
766	case SUPLOGGER_RELEASE: pReq->u.In.fWhich = SUPLOGGERSETTINGS_WHICH_RELEASE; break;
767	default:
768	return VERR_INVALID_PARAMETER;
769	}
770	pReq->u.In.fWhat = fWhat;
771
772	uint32_t off = 0;
773	if (cchFlags)
774	{
775	pReq->u.In.offFlags = off;
776	memcpy(&pReq->u.In.szStrings[off], pszFlags, cchFlags + 1);
777	off += cchFlags + 1;
778	}
779	else
780	pReq->u.In.offFlags = cbStrTab - 1;
781
782	if (cchGroups)
783	{
784	pReq->u.In.offGroups = off;
785	memcpy(&pReq->u.In.szStrings[off], pszGroups, cchGroups + 1);
786	off += cchGroups + 1;
787	}
788	else
789	pReq->u.In.offGroups = cbStrTab - 1;
790
791	if (cchDest)
792	{
793	pReq->u.In.offDestination = off;
794	memcpy(&pReq->u.In.szStrings[off], pszDest, cchDest + 1);
795	off += cchDest + 1;
796	}
797	else
798	pReq->u.In.offDestination = cbStrTab - 1;
799
800	if (!off)
801	{
802	pReq->u.In.szStrings[0] = '\0';
803	off++;
804	}
805	Assert(off == cbStrTab);
806	Assert(pReq->u.In.szStrings[cbStrTab - 1] == '\0');
807
808
809	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LOGGER_SETTINGS(cbStrTab), pReq, SUP_IOCTL_LOGGER_SETTINGS_SIZE(cbStrTab));
810	if (RT_SUCCESS(rc))
811	rc = pReq->Hdr.rc;
812	return rc;
813	}
814
815
816	SUPR3DECL(int) SUPR3LoggerSettings(SUPLOGGER enmWhich, const char pszFlags, const char pszGroups, const char *pszDest)
817	{
818	return supR3LoggerSettings(enmWhich, SUPLOGGERSETTINGS_WHAT_SETTINGS, pszFlags, pszGroups, pszDest);
819	}
820
821
822	SUPR3DECL(int) SUPR3LoggerCreate(SUPLOGGER enmWhich, const char pszFlags, const char pszGroups, const char *pszDest)
823	{
824	return supR3LoggerSettings(enmWhich, SUPLOGGERSETTINGS_WHAT_CREATE, pszFlags, pszGroups, pszDest);
825	}
826
827
828	SUPR3DECL(int) SUPR3LoggerDestroy(SUPLOGGER enmWhich)
829	{
830	return supR3LoggerSettings(enmWhich, SUPLOGGERSETTINGS_WHAT_DESTROY, NULL, NULL, NULL);
831	}
832
833
834	SUPR3DECL(int) SUPPageAlloc(size_t cPages, void **ppvPages)
835	{
836	/*
837	* Validate.
838	*/
839	AssertPtrReturn(ppvPages, VERR_INVALID_POINTER);
840	*ppvPages = NULL;
841	AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
842
843	#ifdef RT_OS_WINDOWS
844	/*
845	* Temporary hack for windows until we've sorted out the
846	* locked memory that doesn't need to be accessible from kernel space.
847	*/
848	return SUPPageAllocLockedEx(cPages, ppvPages, NULL);
849	#else
850	/*
851	* Call OS specific worker.
852	*/
853	return suplibOsPageAlloc(&g_supLibData, cPages, ppvPages);
854	#endif
855	}
856
857
858	SUPR3DECL(int) SUPPageFree(void *pvPages, size_t cPages)
859	{
860	/*
861	* Validate.
862	*/
863	AssertPtrReturn(pvPages, VERR_INVALID_POINTER);
864	AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
865
866	#ifdef RT_OS_WINDOWS
867	/*
868	* Temporary hack for windows, see above.
869	*/
870	return SUPPageFreeLocked(pvPages, cPages);
871	#else
872	/*
873	* Call OS specific worker.
874	*/
875	return suplibOsPageFree(&g_supLibData, pvPages, cPages);
876	#endif
877	}
878
879
880	SUPR3DECL(int) SUPPageLock(void *pvStart, size_t cPages, PSUPPAGE paPages)
881	{
882	/*
883	* Validate.
884	*/
885	AssertPtr(pvStart);
886	AssertMsg(RT_ALIGN_P(pvStart, PAGE_SIZE) == pvStart, ("pvStart (%p) must be page aligned\n", pvStart));
887	AssertPtr(paPages);
888
889	/* fake */
890	if (RT_UNLIKELY(g_u32FakeMode))
891	{
892	RTHCPHYS Phys = (uintptr_t)pvStart + PAGE_SIZE * 1024;
893	size_t iPage = cPages;
894	while (iPage-- > 0)
895	paPages[iPage].Phys = Phys + (iPage << PAGE_SHIFT);
896	return VINF_SUCCESS;
897	}
898
899	/*
900	* Issue IOCtl to the SUPDRV kernel module.
901	*/
902	int rc;
903	PSUPPAGELOCK pReq = (PSUPPAGELOCK)RTMemTmpAllocZ(SUP_IOCTL_PAGE_LOCK_SIZE(cPages));
904	if (RT_LIKELY(pReq))
905	{
906	pReq->Hdr.u32Cookie = g_u32Cookie;
907	pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
908	pReq->Hdr.cbIn = SUP_IOCTL_PAGE_LOCK_SIZE_IN;
909	pReq->Hdr.cbOut = SUP_IOCTL_PAGE_LOCK_SIZE_OUT(cPages);
910	pReq->Hdr.fFlags = SUPREQHDR_FLAGS_MAGIC \| SUPREQHDR_FLAGS_EXTRA_OUT;
911	pReq->Hdr.rc = VERR_INTERNAL_ERROR;
912	pReq->u.In.pvR3 = pvStart;
913	pReq->u.In.cPages = (uint32_t)cPages; AssertRelease(pReq->u.In.cPages == cPages);
914	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_PAGE_LOCK, pReq, SUP_IOCTL_PAGE_LOCK_SIZE(cPages));
915	if (RT_SUCCESS(rc))
916	rc = pReq->Hdr.rc;
917	if (RT_SUCCESS(rc))
918	{
919	for (uint32_t iPage = 0; iPage < cPages; iPage++)
920	{
921	paPages[iPage].uReserved = 0;
922	paPages[iPage].Phys = pReq->u.Out.aPages[iPage];
923	Assert(!(paPages[iPage].Phys & ~X86_PTE_PAE_PG_MASK));
924	}
925	}
926	RTMemTmpFree(pReq);
927	}
928	else
929	rc = VERR_NO_TMP_MEMORY;
930
931	return rc;
932	}
933
934
935	SUPR3DECL(int) SUPPageUnlock(void *pvStart)
936	{
937	/*
938	* Validate.
939	*/
940	AssertPtr(pvStart);
941	AssertMsg(RT_ALIGN_P(pvStart, PAGE_SIZE) == pvStart, ("pvStart (%p) must be page aligned\n", pvStart));
942
943	/* fake */
944	if (RT_UNLIKELY(g_u32FakeMode))
945	return VINF_SUCCESS;
946
947	/*
948	* Issue IOCtl to the SUPDRV kernel module.
949	*/
950	SUPPAGEUNLOCK Req;
951	Req.Hdr.u32Cookie = g_u32Cookie;
952	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
953	Req.Hdr.cbIn = SUP_IOCTL_PAGE_UNLOCK_SIZE_IN;
954	Req.Hdr.cbOut = SUP_IOCTL_PAGE_UNLOCK_SIZE_OUT;
955	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
956	Req.Hdr.rc = VERR_INTERNAL_ERROR;
957	Req.u.In.pvR3 = pvStart;
958	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_PAGE_UNLOCK, &Req, SUP_IOCTL_PAGE_UNLOCK_SIZE);
959	if (RT_SUCCESS(rc))
960	rc = Req.Hdr.rc;
961	return rc;
962	}
963
964
965	SUPR3DECL(int) SUPPageAllocLockedEx(size_t cPages, void **ppvPages, PSUPPAGE paPages)
966	{
967	return SUPR3PageAllocEx(cPages, 0 /fFlags/, ppvPages, NULL /pR0Ptr/, paPages);
968	}
969
970
971	SUPR3DECL(int) SUPPageFreeLocked(void *pvPages, size_t cPages)
972	{
973	/*
974	* Validate.
975	*/
976	AssertPtrReturn(pvPages, VERR_INVALID_POINTER);
977	AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
978
979	/*
980	* Check if we're employing the fallback or not to avoid the
981	* fuzzy handling of this in SUPR3PageFreeEx.
982	*/
983	int rc;
984	if (g_fSupportsPageAllocNoKernel)
985	rc = SUPR3PageFreeEx(pvPages, cPages);
986	else
987	{
988	/* fallback */
989	rc = SUPPageUnlock(pvPages);
990	if (RT_SUCCESS(rc))
991	rc = suplibOsPageFree(&g_supLibData, pvPages, cPages);
992	}
993	return rc;
994	}
995
996
997	/**
998	* Fallback for SUPPageAllocLockedEx on systems where RTR0MemObjPhysAllocNC isn't supported.
999	*/
1000	static int supPagePageAllocNoKernelFallback(size_t cPages, void **ppvPages, PSUPPAGE paPages)
1001	{
1002	int rc = suplibOsPageAlloc(&g_supLibData, cPages, ppvPages);
1003	if (RT_SUCCESS(rc))
1004	{
1005	if (!paPages)
1006	paPages = (PSUPPAGE)alloca(sizeof(paPages[0]) * cPages);
1007	rc = SUPPageLock(*ppvPages, cPages, paPages);
1008	if (RT_FAILURE(rc))
1009	suplibOsPageFree(&g_supLibData, *ppvPages, cPages);
1010	}
1011	return rc;
1012	}
1013
1014
1015	SUPR3DECL(int) SUPR3PageAllocEx(size_t cPages, uint32_t fFlags, void **ppvPages, PRTR0PTR pR0Ptr, PSUPPAGE paPages)
1016	{
1017	/*
1018	* Validate.
1019	*/
1020	AssertPtrReturn(ppvPages, VERR_INVALID_POINTER);
1021	*ppvPages = NULL;
1022	AssertPtrNullReturn(pR0Ptr, VERR_INVALID_POINTER);
1023	if (pR0Ptr)
1024	*pR0Ptr = NIL_RTR0PTR;
1025	AssertPtrNullReturn(paPages, VERR_INVALID_POINTER);
1026	AssertMsgReturn(cPages > 0 && cPages <= VBOX_MAX_ALLOC_PAGE_COUNT, ("cPages=%zu\n", cPages), VERR_PAGE_COUNT_OUT_OF_RANGE);
1027
1028	/* fake */
1029	if (RT_UNLIKELY(g_u32FakeMode))
1030	{
1031	void pv = RTMemPageAllocZ(cPages PAGE_SIZE);
1032	if (!pv)
1033	return VERR_NO_MEMORY;
1034	*ppvPages = pv;
1035	if (pR0Ptr)
1036	*pR0Ptr = (RTR0PTR)pv;
1037	if (paPages)
1038	for (size_t iPage = 0; iPage < cPages; iPage++)
1039	{
1040	paPages[iPage].uReserved = 0;
1041	paPages[iPage].Phys = (iPage + 4321) << PAGE_SHIFT;
1042	Assert(!(paPages[iPage].Phys & ~X86_PTE_PAE_PG_MASK));
1043	}
1044	return VINF_SUCCESS;
1045	}
1046
1047	/*
1048	* Use fallback for non-R0 mapping?
1049	*/
1050	if ( !pR0Ptr
1051	&& !g_fSupportsPageAllocNoKernel)
1052	return supPagePageAllocNoKernelFallback(cPages, ppvPages, paPages);
1053
1054	/*
1055	* Issue IOCtl to the SUPDRV kernel module.
1056	*/
1057	int rc;
1058	PSUPPAGEALLOCEX pReq = (PSUPPAGEALLOCEX)RTMemTmpAllocZ(SUP_IOCTL_PAGE_ALLOC_EX_SIZE(cPages));
1059	if (pReq)
1060	{
1061	pReq->Hdr.u32Cookie = g_u32Cookie;
1062	pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
1063	pReq->Hdr.cbIn = SUP_IOCTL_PAGE_ALLOC_EX_SIZE_IN;
1064	pReq->Hdr.cbOut = SUP_IOCTL_PAGE_ALLOC_EX_SIZE_OUT(cPages);
1065	pReq->Hdr.fFlags = SUPREQHDR_FLAGS_MAGIC \| SUPREQHDR_FLAGS_EXTRA_OUT;
1066	pReq->Hdr.rc = VERR_INTERNAL_ERROR;
1067	pReq->u.In.cPages = (uint32_t)cPages; AssertRelease(pReq->u.In.cPages == cPages);
1068	pReq->u.In.fKernelMapping = pR0Ptr != NULL;
1069	pReq->u.In.fUserMapping = true;
1070	pReq->u.In.fReserved0 = false;
1071	pReq->u.In.fReserved1 = false;
1072	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_PAGE_ALLOC_EX, pReq, SUP_IOCTL_PAGE_ALLOC_EX_SIZE(cPages));
1073	if (RT_SUCCESS(rc))
1074	{
1075	rc = pReq->Hdr.rc;
1076	if (RT_SUCCESS(rc))
1077	{
1078	*ppvPages = pReq->u.Out.pvR3;
1079	if (pR0Ptr)
1080	*pR0Ptr = pReq->u.Out.pvR0;
1081	if (paPages)
1082	for (size_t iPage = 0; iPage < cPages; iPage++)
1083	{
1084	paPages[iPage].uReserved = 0;
1085	paPages[iPage].Phys = pReq->u.Out.aPages[iPage];
1086	Assert(!(paPages[iPage].Phys & ~X86_PTE_PAE_PG_MASK));
1087	}
1088	}
1089	else if ( rc == VERR_NOT_SUPPORTED
1090	&& !pR0Ptr)
1091	{
1092	g_fSupportsPageAllocNoKernel = false;
1093	rc = supPagePageAllocNoKernelFallback(cPages, ppvPages, paPages);
1094	}
1095	}
1096
1097	RTMemTmpFree(pReq);
1098	}
1099	else
1100	rc = VERR_NO_TMP_MEMORY;
1101	return rc;
1102
1103	}
1104
1105
1106	SUPR3DECL(int) SUPR3PageMapKernel(void *pvR3, uint32_t off, uint32_t cb, uint32_t fFlags, PRTR0PTR pR0Ptr)
1107	{
1108	/*
1109	* Validate.
1110	*/
1111	AssertPtrReturn(pvR3, VERR_INVALID_POINTER);
1112	AssertPtrReturn(pR0Ptr, VERR_INVALID_POINTER);
1113	Assert(!(off & PAGE_OFFSET_MASK));
1114	Assert(!(cb & PAGE_OFFSET_MASK) && cb);
1115	Assert(!fFlags);
1116	*pR0Ptr = NIL_RTR0PTR;
1117
1118	/* fake */
1119	if (RT_UNLIKELY(g_u32FakeMode))
1120	return VERR_NOT_SUPPORTED;
1121
1122	/*
1123	* Issue IOCtl to the SUPDRV kernel module.
1124	*/
1125	SUPPAGEMAPKERNEL Req;
1126	Req.Hdr.u32Cookie = g_u32Cookie;
1127	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1128	Req.Hdr.cbIn = SUP_IOCTL_PAGE_MAP_KERNEL_SIZE_IN;
1129	Req.Hdr.cbOut = SUP_IOCTL_PAGE_MAP_KERNEL_SIZE_OUT;
1130	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1131	Req.Hdr.rc = VERR_INTERNAL_ERROR;
1132	Req.u.In.pvR3 = pvR3;
1133	Req.u.In.offSub = off;
1134	Req.u.In.cbSub = cb;
1135	Req.u.In.fFlags = fFlags;
1136	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_PAGE_MAP_KERNEL, &Req, SUP_IOCTL_PAGE_MAP_KERNEL_SIZE);
1137	if (RT_SUCCESS(rc))
1138	rc = Req.Hdr.rc;
1139	if (RT_SUCCESS(rc))
1140	*pR0Ptr = Req.u.Out.pvR0;
1141	return rc;
1142	}
1143
1144
1145	SUPR3DECL(int) SUPR3PageFreeEx(void *pvPages, size_t cPages)
1146	{
1147	/*
1148	* Validate.
1149	*/
1150	AssertPtrReturn(pvPages, VERR_INVALID_POINTER);
1151	AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
1152
1153	/* fake */
1154	if (RT_UNLIKELY(g_u32FakeMode))
1155	{
1156	RTMemPageFree(pvPages);
1157	return VINF_SUCCESS;
1158	}
1159
1160	/*
1161	* Try normal free first, then if it fails check if we're using the fallback .
1162	* for the allocations without kernel mappings and attempt unlocking it.
1163	*/
1164	NOREF(cPages);
1165	SUPPAGEFREE Req;
1166	Req.Hdr.u32Cookie = g_u32Cookie;
1167	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1168	Req.Hdr.cbIn = SUP_IOCTL_PAGE_FREE_SIZE_IN;
1169	Req.Hdr.cbOut = SUP_IOCTL_PAGE_FREE_SIZE_OUT;
1170	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1171	Req.Hdr.rc = VERR_INTERNAL_ERROR;
1172	Req.u.In.pvR3 = pvPages;
1173	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_PAGE_FREE, &Req, SUP_IOCTL_PAGE_FREE_SIZE);
1174	if (RT_SUCCESS(rc))
1175	{
1176	rc = Req.Hdr.rc;
1177	if ( rc == VERR_INVALID_PARAMETER
1178	&& !g_fSupportsPageAllocNoKernel)
1179	{
1180	int rc2 = SUPPageUnlock(pvPages);
1181	if (RT_SUCCESS(rc2))
1182	rc = suplibOsPageFree(&g_supLibData, pvPages, cPages);
1183	}
1184	}
1185	return rc;
1186	}
1187
1188
1189	SUPR3DECL(void *) SUPContAlloc(size_t cPages, PRTHCPHYS pHCPhys)
1190	{
1191	return SUPContAlloc2(cPages, NIL_RTR0PTR, pHCPhys);
1192	}
1193
1194
1195	SUPR3DECL(void *) SUPContAlloc2(size_t cPages, PRTR0PTR pR0Ptr, PRTHCPHYS pHCPhys)
1196	{
1197	/*
1198	* Validate.
1199	*/
1200	AssertPtrReturn(pHCPhys, NULL);
1201	*pHCPhys = NIL_RTHCPHYS;
1202	AssertPtrNullReturn(pR0Ptr, NULL);
1203	if (pR0Ptr)
1204	*pR0Ptr = NIL_RTR0PTR;
1205	AssertPtrNullReturn(pHCPhys, NULL);
1206	AssertMsgReturn(cPages > 0 && cPages < 256, ("cPages=%d must be > 0 and < 256\n", cPages), NULL);
1207
1208	/* fake */
1209	if (RT_UNLIKELY(g_u32FakeMode))
1210	{
1211	void pv = RTMemPageAllocZ(cPages PAGE_SIZE);
1212	if (pR0Ptr)
1213	*pR0Ptr = (RTR0PTR)pv;
1214	if (pHCPhys)
1215	pHCPhys = (uintptr_t)pv + (PAGE_SHIFT 1024);
1216	return pv;
1217	}
1218
1219	/*
1220	* Issue IOCtl to the SUPDRV kernel module.
1221	*/
1222	SUPCONTALLOC Req;
1223	Req.Hdr.u32Cookie = g_u32Cookie;
1224	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1225	Req.Hdr.cbIn = SUP_IOCTL_CONT_ALLOC_SIZE_IN;
1226	Req.Hdr.cbOut = SUP_IOCTL_CONT_ALLOC_SIZE_OUT;
1227	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1228	Req.Hdr.rc = VERR_INTERNAL_ERROR;
1229	Req.u.In.cPages = (uint32_t)cPages;
1230	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CONT_ALLOC, &Req, SUP_IOCTL_CONT_ALLOC_SIZE);
1231	if ( RT_SUCCESS(rc)
1232	&& RT_SUCCESS(Req.Hdr.rc))
1233	{
1234	*pHCPhys = Req.u.Out.HCPhys;
1235	if (pR0Ptr)
1236	*pR0Ptr = Req.u.Out.pvR0;
1237	return Req.u.Out.pvR3;
1238	}
1239
1240	return NULL;
1241	}
1242
1243
1244	SUPR3DECL(int) SUPContFree(void *pv, size_t cPages)
1245	{
1246	/*
1247	* Validate.
1248	*/
1249	if (!pv)
1250	return VINF_SUCCESS;
1251	AssertPtrReturn(pv, VERR_INVALID_POINTER);
1252	AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
1253
1254	/* fake */
1255	if (RT_UNLIKELY(g_u32FakeMode))
1256	{
1257	RTMemPageFree(pv);
1258	return VINF_SUCCESS;
1259	}
1260
1261	/*
1262	* Issue IOCtl to the SUPDRV kernel module.
1263	*/
1264	SUPCONTFREE Req;
1265	Req.Hdr.u32Cookie = g_u32Cookie;
1266	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1267	Req.Hdr.cbIn = SUP_IOCTL_CONT_FREE_SIZE_IN;
1268	Req.Hdr.cbOut = SUP_IOCTL_CONT_FREE_SIZE_OUT;
1269	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1270	Req.Hdr.rc = VERR_INTERNAL_ERROR;
1271	Req.u.In.pvR3 = pv;
1272	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CONT_FREE, &Req, SUP_IOCTL_CONT_FREE_SIZE);
1273	if (RT_SUCCESS(rc))
1274	rc = Req.Hdr.rc;
1275	return rc;
1276	}
1277
1278
1279	SUPR3DECL(int) SUPLowAlloc(size_t cPages, void **ppvPages, PRTR0PTR ppvPagesR0, PSUPPAGE paPages)
1280	{
1281	/*
1282	* Validate.
1283	*/
1284	AssertPtrReturn(ppvPages, VERR_INVALID_POINTER);
1285	*ppvPages = NULL;
1286	AssertPtrReturn(paPages, VERR_INVALID_POINTER);
1287	AssertMsgReturn(cPages > 0 && cPages < 256, ("cPages=%d must be > 0 and < 256\n", cPages), VERR_PAGE_COUNT_OUT_OF_RANGE);
1288
1289	/* fake */
1290	if (RT_UNLIKELY(g_u32FakeMode))
1291	{
1292	ppvPages = RTMemPageAllocZ((size_t)cPages PAGE_SIZE);
1293	if (!*ppvPages)
1294	return VERR_NO_LOW_MEMORY;
1295
1296	/* fake physical addresses. */
1297	RTHCPHYS Phys = (uintptr_t)ppvPages + PAGE_SIZE 1024;
1298	size_t iPage = cPages;
1299	while (iPage-- > 0)
1300	paPages[iPage].Phys = Phys + (iPage << PAGE_SHIFT);
1301	return VINF_SUCCESS;
1302	}
1303
1304	/*
1305	* Issue IOCtl to the SUPDRV kernel module.
1306	*/
1307	int rc;
1308	PSUPLOWALLOC pReq = (PSUPLOWALLOC)RTMemTmpAllocZ(SUP_IOCTL_LOW_ALLOC_SIZE(cPages));
1309	if (pReq)
1310	{
1311	pReq->Hdr.u32Cookie = g_u32Cookie;
1312	pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
1313	pReq->Hdr.cbIn = SUP_IOCTL_LOW_ALLOC_SIZE_IN;
1314	pReq->Hdr.cbOut = SUP_IOCTL_LOW_ALLOC_SIZE_OUT(cPages);
1315	pReq->Hdr.fFlags = SUPREQHDR_FLAGS_MAGIC \| SUPREQHDR_FLAGS_EXTRA_OUT;
1316	pReq->Hdr.rc = VERR_INTERNAL_ERROR;
1317	pReq->u.In.cPages = (uint32_t)cPages; AssertRelease(pReq->u.In.cPages == cPages);
1318	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LOW_ALLOC, pReq, SUP_IOCTL_LOW_ALLOC_SIZE(cPages));
1319	if (RT_SUCCESS(rc))
1320	rc = pReq->Hdr.rc;
1321	if (RT_SUCCESS(rc))
1322	{
1323	*ppvPages = pReq->u.Out.pvR3;
1324	if (ppvPagesR0)
1325	*ppvPagesR0 = pReq->u.Out.pvR0;
1326	if (paPages)
1327	for (size_t iPage = 0; iPage < cPages; iPage++)
1328	{
1329	paPages[iPage].uReserved = 0;
1330	paPages[iPage].Phys = pReq->u.Out.aPages[iPage];
1331	Assert(!(paPages[iPage].Phys & ~X86_PTE_PAE_PG_MASK));
1332	Assert(paPages[iPage].Phys <= UINT32_C(0xfffff000));
1333	}
1334	}
1335	RTMemTmpFree(pReq);
1336	}
1337	else
1338	rc = VERR_NO_TMP_MEMORY;
1339
1340	return rc;
1341	}
1342
1343
1344	SUPR3DECL(int) SUPLowFree(void *pv, size_t cPages)
1345	{
1346	/*
1347	* Validate.
1348	*/
1349	if (!pv)
1350	return VINF_SUCCESS;
1351	AssertPtrReturn(pv, VERR_INVALID_POINTER);
1352	AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
1353
1354	/* fake */
1355	if (RT_UNLIKELY(g_u32FakeMode))
1356	{
1357	RTMemPageFree(pv);
1358	return VINF_SUCCESS;
1359	}
1360
1361	/*
1362	* Issue IOCtl to the SUPDRV kernel module.
1363	*/
1364	SUPCONTFREE Req;
1365	Req.Hdr.u32Cookie = g_u32Cookie;
1366	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1367	Req.Hdr.cbIn = SUP_IOCTL_LOW_FREE_SIZE_IN;
1368	Req.Hdr.cbOut = SUP_IOCTL_LOW_FREE_SIZE_OUT;
1369	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1370	Req.Hdr.rc = VERR_INTERNAL_ERROR;
1371	Req.u.In.pvR3 = pv;
1372	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LOW_FREE, &Req, SUP_IOCTL_LOW_FREE_SIZE);
1373	if (RT_SUCCESS(rc))
1374	rc = Req.Hdr.rc;
1375	return rc;
1376	}
1377
1378
1379	SUPR3DECL(int) SUPR3HardenedVerifyFile(const char pszFilename, const char pszMsg, PRTFILE phFile)
1380	{
1381	/*
1382	* Quick input validation.
1383	*/
1384	AssertPtr(pszFilename);
1385	AssertPtr(pszMsg);
1386	AssertReturn(!phFile, VERR_NOT_IMPLEMENTED); /** @todo Implement this. The deal is that we make sure the
1387	file is the same we verified after opening it. */
1388
1389	/*
1390	* Only do the actual check in hardened builds.
1391	*/
1392	#ifdef VBOX_WITH_HARDENING
1393	int rc = supR3HardenedVerifyFile(pszFilename, false /* fFatal */);
1394	if (RT_FAILURE(rc))
1395	LogRel(("SUPR3HardenedVerifyFile: %s: Verification of \"%s\" failed, rc=%Rrc\n", pszMsg, pszFilename, rc));
1396	return rc;
1397	#else
1398	return VINF_SUCCESS;
1399	#endif
1400	}
1401
1402
1403	SUPR3DECL(int) SUPLoadModule(const char pszFilename, const char pszModule, void **ppvImageBase)
1404	{
1405	int rc = VINF_SUCCESS;
1406	#ifdef VBOX_WITH_HARDENING
1407	/*
1408	* Check that the module can be trusted.
1409	*/
1410	rc = supR3HardenedVerifyFile(pszFilename, false /* fFatal */);
1411	#endif
1412	if (RT_SUCCESS(rc))
1413	rc = supLoadModule(pszFilename, pszModule, NULL, ppvImageBase);
1414	else
1415	LogRel(("SUPLoadModule: Verification of \"%s\" failed, rc=%Rrc\n", rc));
1416	return rc;
1417	}
1418
1419
1420	SUPR3DECL(int) SUPR3LoadServiceModule(const char pszFilename, const char pszModule,
1421	const char pszSrvReqHandler, void *ppvImageBase)
1422	{
1423	int rc = VINF_SUCCESS;
1424	AssertPtrReturn(pszSrvReqHandler, VERR_INVALID_PARAMETER);
1425
1426	#ifdef VBOX_WITH_HARDENING
1427	/*
1428	* Check that the module can be trusted.
1429	*/
1430	rc = supR3HardenedVerifyFile(pszFilename, false /* fFatal */);
1431	#endif
1432	if (RT_SUCCESS(rc))
1433	rc = supLoadModule(pszFilename, pszModule, pszSrvReqHandler, ppvImageBase);
1434	else
1435	LogRel(("SUPR3LoadServiceModule: Verification of \"%s\" failed, rc=%Rrc\n", rc));
1436	return rc;
1437	}
1438
1439
1440	/**
1441	* Resolve an external symbol during RTLdrGetBits().
1442	*
1443	* @returns VBox status code.
1444	* @param hLdrMod The loader module handle.
1445	* @param pszModule Module name.
1446	* @param pszSymbol Symbol name, NULL if uSymbol should be used.
1447	* @param uSymbol Symbol ordinal, ~0 if pszSymbol should be used.
1448	* @param pValue Where to store the symbol value (address).
1449	* @param pvUser User argument.
1450	*/
1451	static DECLCALLBACK(int) supLoadModuleResolveImport(RTLDRMOD hLdrMod, const char *pszModule,
1452	const char pszSymbol, unsigned uSymbol, RTUINTPTR pValue, void *pvUser)
1453	{
1454	AssertPtr(pValue);
1455	AssertPtr(pvUser);
1456
1457	/*
1458	* Only SUPR0 and VMMR0.r0
1459	*/
1460	if ( pszModule
1461	&& *pszModule
1462	&& strcmp(pszModule, "SUPR0.dll")
1463	&& strcmp(pszModule, "VMMR0.r0"))
1464	{
1465	AssertMsgFailed(("%s is importing from %s! (expected 'SUPR0.dll' or 'VMMR0.r0', case-sensitiv)\n", pvUser, pszModule));
1466	return VERR_SYMBOL_NOT_FOUND;
1467	}
1468
1469	/*
1470	* No ordinals.
1471	*/
1472	if (pszSymbol < (const char*)0x10000)
1473	{
1474	AssertMsgFailed(("%s is importing by ordinal (ord=%d)\n", pvUser, (int)(uintptr_t)pszSymbol));
1475	return VERR_SYMBOL_NOT_FOUND;
1476	}
1477
1478	/*
1479	* Lookup symbol.
1480	*/
1481	/* skip the 64-bit ELF import prefix first. */
1482	if (!strncmp(pszSymbol, "SUPR0$", sizeof("SUPR0$") - 1))
1483	pszSymbol += sizeof("SUPR0$") - 1;
1484
1485	/*
1486	* Check the VMMR0.r0 module if loaded.
1487	*/
1488	/** @todo call the SUPLoadModule caller.... */
1489	/** @todo proper reference counting and such. */
1490	if (g_pvVMMR0 != NIL_RTR0PTR)
1491	{
1492	void *pvValue;
1493	if (!SUPGetSymbolR0((void *)g_pvVMMR0, pszSymbol, &pvValue))
1494	{
1495	*pValue = (uintptr_t)pvValue;
1496	return VINF_SUCCESS;
1497	}
1498	}
1499
1500	/* iterate the function table. */
1501	int c = g_pFunctions->u.Out.cFunctions;
1502	PSUPFUNC pFunc = &g_pFunctions->u.Out.aFunctions[0];
1503	while (c-- > 0)
1504	{
1505	if (!strcmp(pFunc->szName, pszSymbol))
1506	{
1507	*pValue = (uintptr_t)pFunc->pfn;
1508	return VINF_SUCCESS;
1509	}
1510	pFunc++;
1511	}
1512
1513	/*
1514	* The GIP.
1515	*/
1516	/** @todo R0 mapping? */
1517	if ( pszSymbol
1518	&& g_pSUPGlobalInfoPage
1519	&& g_pSUPGlobalInfoPageR0
1520	&& !strcmp(pszSymbol, "g_SUPGlobalInfoPage"))
1521	{
1522	*pValue = (uintptr_t)g_pSUPGlobalInfoPageR0;
1523	return VINF_SUCCESS;
1524	}
1525
1526	/*
1527	* Despair.
1528	*/
1529	c = g_pFunctions->u.Out.cFunctions;
1530	pFunc = &g_pFunctions->u.Out.aFunctions[0];
1531	while (c-- > 0)
1532	{
1533	AssertMsg2("%d: %s\n", g_pFunctions->u.Out.cFunctions - c, pFunc->szName);
1534	pFunc++;
1535	}
1536
1537	AssertMsg2("%s is importing %s which we couldn't find\n", pvUser, pszSymbol);
1538	AssertMsgFailed(("%s is importing %s which we couldn't find\n", pvUser, pszSymbol));
1539	if (g_u32FakeMode)
1540	{
1541	*pValue = 0xdeadbeef;
1542	return VINF_SUCCESS;
1543	}
1544	return VERR_SYMBOL_NOT_FOUND;
1545	}
1546
1547
1548	/** Argument package for supLoadModuleCalcSizeCB. */
1549	typedef struct SUPLDRCALCSIZEARGS
1550	{
1551	size_t cbStrings;
1552	uint32_t cSymbols;
1553	size_t cbImage;
1554	} SUPLDRCALCSIZEARGS, *PSUPLDRCALCSIZEARGS;
1555
1556	/**
1557	* Callback used to calculate the image size.
1558	* @return VINF_SUCCESS
1559	*/
1560	static DECLCALLBACK(int) supLoadModuleCalcSizeCB(RTLDRMOD hLdrMod, const char pszSymbol, unsigned uSymbol, RTUINTPTR Value, void pvUser)
1561	{
1562	PSUPLDRCALCSIZEARGS pArgs = (PSUPLDRCALCSIZEARGS)pvUser;
1563	if ( pszSymbol != NULL
1564	&& *pszSymbol
1565	&& Value <= pArgs->cbImage)
1566	{
1567	pArgs->cSymbols++;
1568	pArgs->cbStrings += strlen(pszSymbol) + 1;
1569	}
1570	return VINF_SUCCESS;
1571	}
1572
1573
1574	/** Argument package for supLoadModuleCreateTabsCB. */
1575	typedef struct SUPLDRCREATETABSARGS
1576	{
1577	size_t cbImage;
1578	PSUPLDRSYM pSym;
1579	char *pszBase;
1580	char *psz;
1581	} SUPLDRCREATETABSARGS, *PSUPLDRCREATETABSARGS;
1582
1583	/**
1584	* Callback used to calculate the image size.
1585	* @return VINF_SUCCESS
1586	*/
1587	static DECLCALLBACK(int) supLoadModuleCreateTabsCB(RTLDRMOD hLdrMod, const char pszSymbol, unsigned uSymbol, RTUINTPTR Value, void pvUser)
1588	{
1589	PSUPLDRCREATETABSARGS pArgs = (PSUPLDRCREATETABSARGS)pvUser;
1590	if ( pszSymbol != NULL
1591	&& *pszSymbol
1592	&& Value <= pArgs->cbImage)
1593	{
1594	pArgs->pSym->offSymbol = (uint32_t)Value;
1595	pArgs->pSym->offName = pArgs->psz - pArgs->pszBase;
1596	pArgs->pSym++;
1597
1598	size_t cbCopy = strlen(pszSymbol) + 1;
1599	memcpy(pArgs->psz, pszSymbol, cbCopy);
1600	pArgs->psz += cbCopy;
1601	}
1602	return VINF_SUCCESS;
1603	}
1604
1605
1606	/**
1607	* Worker for SUPLoadModule().
1608	*
1609	* @returns VBox status code.
1610	* @param pszFilename Name of the VMMR0 image file
1611	*/
1612	static int supLoadModule(const char pszFilename, const char pszModule, const char pszSrvReqHandler, void *ppvImageBase)
1613	{
1614	/*
1615	* Validate input.
1616	*/
1617	AssertPtrReturn(pszFilename, VERR_INVALID_PARAMETER);
1618	AssertPtrReturn(pszModule, VERR_INVALID_PARAMETER);
1619	AssertPtrReturn(ppvImageBase, VERR_INVALID_PARAMETER);
1620	AssertReturn(strlen(pszModule) < RT_SIZEOFMEMB(SUPLDROPEN, u.In.szName), VERR_FILENAME_TOO_LONG);
1621
1622	const bool fIsVMMR0 = !strcmp(pszModule, "VMMR0.r0");
1623	AssertReturn(!pszSrvReqHandler \|\| !fIsVMMR0, VERR_INTERNAL_ERROR);
1624	*ppvImageBase = NULL;
1625
1626	/*
1627	* Open image file and figure its size.
1628	*/
1629	RTLDRMOD hLdrMod;
1630	int rc = RTLdrOpen(pszFilename, 0, RTLDRARCH_HOST, &hLdrMod);
1631	if (!RT_SUCCESS(rc))
1632	return rc;
1633
1634	SUPLDRCALCSIZEARGS CalcArgs;
1635	CalcArgs.cbStrings = 0;
1636	CalcArgs.cSymbols = 0;
1637	CalcArgs.cbImage = RTLdrSize(hLdrMod);
1638	rc = RTLdrEnumSymbols(hLdrMod, 0, NULL, 0, supLoadModuleCalcSizeCB, &CalcArgs);
1639	if (RT_SUCCESS(rc))
1640	{
1641	const uint32_t offSymTab = RT_ALIGN_32(CalcArgs.cbImage, 8);
1642	const uint32_t offStrTab = offSymTab + CalcArgs.cSymbols * sizeof(SUPLDRSYM);
1643	const uint32_t cbImage = RT_ALIGN_32(offStrTab + CalcArgs.cbStrings, 8);
1644
1645	/*
1646	* Open the R0 image.
1647	*/
1648	SUPLDROPEN OpenReq;
1649	OpenReq.Hdr.u32Cookie = g_u32Cookie;
1650	OpenReq.Hdr.u32SessionCookie = g_u32SessionCookie;
1651	OpenReq.Hdr.cbIn = SUP_IOCTL_LDR_OPEN_SIZE_IN;
1652	OpenReq.Hdr.cbOut = SUP_IOCTL_LDR_OPEN_SIZE_OUT;
1653	OpenReq.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1654	OpenReq.Hdr.rc = VERR_INTERNAL_ERROR;
1655	OpenReq.u.In.cbImage = cbImage;
1656	strcpy(OpenReq.u.In.szName, pszModule);
1657	if (!g_u32FakeMode)
1658	{
1659	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LDR_OPEN, &OpenReq, SUP_IOCTL_LDR_OPEN_SIZE);
1660	if (RT_SUCCESS(rc))
1661	rc = OpenReq.Hdr.rc;
1662	}
1663	else
1664	{
1665	OpenReq.u.Out.fNeedsLoading = true;
1666	OpenReq.u.Out.pvImageBase = 0xef423420;
1667	}
1668	ppvImageBase = (void )OpenReq.u.Out.pvImageBase;
1669	if ( RT_SUCCESS(rc)
1670	&& OpenReq.u.Out.fNeedsLoading)
1671	{
1672	/*
1673	* We need to load it.
1674	* Allocate memory for the image bits.
1675	*/
1676	PSUPLDRLOAD pLoadReq = (PSUPLDRLOAD)RTMemTmpAlloc(SUP_IOCTL_LDR_LOAD_SIZE(cbImage));
1677	if (pLoadReq)
1678	{
1679	/*
1680	* Get the image bits.
1681	*/
1682	rc = RTLdrGetBits(hLdrMod, &pLoadReq->u.In.achImage[0], (uintptr_t)OpenReq.u.Out.pvImageBase,
1683	supLoadModuleResolveImport, (void *)pszModule);
1684
1685	if (RT_SUCCESS(rc))
1686	{
1687	/*
1688	* Get the entry points.
1689	*/
1690	RTUINTPTR VMMR0EntryInt = 0;
1691	RTUINTPTR VMMR0EntryFast = 0;
1692	RTUINTPTR VMMR0EntryEx = 0;
1693	RTUINTPTR SrvReqHandler = 0;
1694	RTUINTPTR ModuleInit = 0;
1695	RTUINTPTR ModuleTerm = 0;
1696	if (fIsVMMR0)
1697	{
1698	rc = RTLdrGetSymbolEx(hLdrMod, &pLoadReq->u.In.achImage[0], (uintptr_t)OpenReq.u.Out.pvImageBase, "VMMR0EntryInt", &VMMR0EntryInt);
1699	if (RT_SUCCESS(rc))
1700	rc = RTLdrGetSymbolEx(hLdrMod, &pLoadReq->u.In.achImage[0], (uintptr_t)OpenReq.u.Out.pvImageBase, "VMMR0EntryFast", &VMMR0EntryFast);
1701	if (RT_SUCCESS(rc))
1702	rc = RTLdrGetSymbolEx(hLdrMod, &pLoadReq->u.In.achImage[0], (uintptr_t)OpenReq.u.Out.pvImageBase, "VMMR0EntryEx", &VMMR0EntryEx);
1703	}
1704	else if (pszSrvReqHandler)
1705	rc = RTLdrGetSymbolEx(hLdrMod, &pLoadReq->u.In.achImage[0], (uintptr_t)OpenReq.u.Out.pvImageBase, pszSrvReqHandler, &SrvReqHandler);
1706	if (RT_SUCCESS(rc))
1707	{
1708	int rc2 = RTLdrGetSymbolEx(hLdrMod, &pLoadReq->u.In.achImage[0], (uintptr_t)OpenReq.u.Out.pvImageBase, "ModuleInit", &ModuleInit);
1709	if (RT_FAILURE(rc2))
1710	ModuleInit = 0;
1711
1712	rc2 = RTLdrGetSymbolEx(hLdrMod, &pLoadReq->u.In.achImage[0], (uintptr_t)OpenReq.u.Out.pvImageBase, "ModuleTerm", &ModuleTerm);
1713	if (RT_FAILURE(rc2))
1714	ModuleTerm = 0;
1715	}
1716	if (RT_SUCCESS(rc))
1717	{
1718	/*
1719	* Create the symbol and string tables.
1720	*/
1721	SUPLDRCREATETABSARGS CreateArgs;
1722	CreateArgs.cbImage = CalcArgs.cbImage;
1723	CreateArgs.pSym = (PSUPLDRSYM)&pLoadReq->u.In.achImage[offSymTab];
1724	CreateArgs.pszBase = (char *)&pLoadReq->u.In.achImage[offStrTab];
1725	CreateArgs.psz = CreateArgs.pszBase;
1726	rc = RTLdrEnumSymbols(hLdrMod, 0, NULL, 0, supLoadModuleCreateTabsCB, &CreateArgs);
1727	if (RT_SUCCESS(rc))
1728	{
1729	AssertRelease((size_t)(CreateArgs.psz - CreateArgs.pszBase) <= CalcArgs.cbStrings);
1730	AssertRelease((size_t)(CreateArgs.pSym - (PSUPLDRSYM)&pLoadReq->u.In.achImage[offSymTab]) <= CalcArgs.cSymbols);
1731
1732	/*
1733	* Upload the image.
1734	*/
1735	pLoadReq->Hdr.u32Cookie = g_u32Cookie;
1736	pLoadReq->Hdr.u32SessionCookie = g_u32SessionCookie;
1737	pLoadReq->Hdr.cbIn = SUP_IOCTL_LDR_LOAD_SIZE_IN(cbImage);
1738	pLoadReq->Hdr.cbOut = SUP_IOCTL_LDR_LOAD_SIZE_OUT;
1739	pLoadReq->Hdr.fFlags = SUPREQHDR_FLAGS_MAGIC \| SUPREQHDR_FLAGS_EXTRA_IN;
1740	pLoadReq->Hdr.rc = VERR_INTERNAL_ERROR;
1741
1742	pLoadReq->u.In.pfnModuleInit = (RTR0PTR)ModuleInit;
1743	pLoadReq->u.In.pfnModuleTerm = (RTR0PTR)ModuleTerm;
1744	if (fIsVMMR0)
1745	{
1746	pLoadReq->u.In.eEPType = SUPLDRLOADEP_VMMR0;
1747	pLoadReq->u.In.EP.VMMR0.pvVMMR0 = OpenReq.u.Out.pvImageBase;
1748	pLoadReq->u.In.EP.VMMR0.pvVMMR0EntryInt = (RTR0PTR)VMMR0EntryInt;
1749	pLoadReq->u.In.EP.VMMR0.pvVMMR0EntryFast= (RTR0PTR)VMMR0EntryFast;
1750	pLoadReq->u.In.EP.VMMR0.pvVMMR0EntryEx = (RTR0PTR)VMMR0EntryEx;
1751	}
1752	else if (pszSrvReqHandler)
1753	{
1754	pLoadReq->u.In.eEPType = SUPLDRLOADEP_SERVICE;
1755	pLoadReq->u.In.EP.Service.pfnServiceReq = (RTR0PTR)SrvReqHandler;
1756	pLoadReq->u.In.EP.Service.apvReserved[0] = NIL_RTR0PTR;
1757	pLoadReq->u.In.EP.Service.apvReserved[1] = NIL_RTR0PTR;
1758	pLoadReq->u.In.EP.Service.apvReserved[2] = NIL_RTR0PTR;
1759	}
1760	else
1761	pLoadReq->u.In.eEPType = SUPLDRLOADEP_NOTHING;
1762	pLoadReq->u.In.offStrTab = offStrTab;
1763	pLoadReq->u.In.cbStrTab = (uint32_t)CalcArgs.cbStrings;
1764	AssertRelease(pLoadReq->u.In.cbStrTab == CalcArgs.cbStrings);
1765	pLoadReq->u.In.offSymbols = offSymTab;
1766	pLoadReq->u.In.cSymbols = CalcArgs.cSymbols;
1767	pLoadReq->u.In.cbImage = cbImage;
1768	pLoadReq->u.In.pvImageBase = OpenReq.u.Out.pvImageBase;
1769	if (!g_u32FakeMode)
1770	{
1771	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LDR_LOAD, pLoadReq, SUP_IOCTL_LDR_LOAD_SIZE(cbImage));
1772	if (RT_SUCCESS(rc))
1773	rc = pLoadReq->Hdr.rc;
1774	}
1775	else
1776	rc = VINF_SUCCESS;
1777	if ( RT_SUCCESS(rc)
1778	\|\| rc == VERR_ALREADY_LOADED /* A competing process. */
1779	)
1780	{
1781	LogRel(("SUP: Loaded %s (%s) at %#p - ModuleInit at %RTptr and ModuleTerm at %RTptr\n", pszModule, pszFilename,
1782	OpenReq.u.Out.pvImageBase, ModuleInit, ModuleTerm));
1783	if (fIsVMMR0)
1784	{
1785	g_pvVMMR0 = OpenReq.u.Out.pvImageBase;
1786	LogRel(("SUP: VMMR0EntryEx located at %RTptr, VMMR0EntryFast at %RTptr and VMMR0EntryInt at %RTptr\n",
1787	VMMR0EntryEx, VMMR0EntryFast, VMMR0EntryInt));
1788	}
1789	#ifdef RT_OS_WINDOWS
1790	LogRel(("SUP: windbg> .reload /f %s=%#p\n", pszFilename, OpenReq.u.Out.pvImageBase));
1791	#endif
1792
1793	RTMemTmpFree(pLoadReq);
1794	RTLdrClose(hLdrMod);
1795	return VINF_SUCCESS;
1796	}
1797	}
1798	}
1799	}
1800	RTMemTmpFree(pLoadReq);
1801	}
1802	else
1803	{
1804	AssertMsgFailed(("failed to allocated %d bytes for SUPLDRLOAD_IN structure!\n", SUP_IOCTL_LDR_LOAD_SIZE(cbImage)));
1805	rc = VERR_NO_TMP_MEMORY;
1806	}
1807	}
1808	else if (RT_SUCCESS(rc))
1809	{
1810	if (fIsVMMR0)
1811	g_pvVMMR0 = OpenReq.u.Out.pvImageBase;
1812	LogRel(("SUP: Opened %s (%s) at %#p.\n", pszModule, pszFilename, OpenReq.u.Out.pvImageBase));
1813	#ifdef RT_OS_WINDOWS
1814	LogRel(("SUP: windbg> .reload /f %s=%#p\n", pszFilename, OpenReq.u.Out.pvImageBase));
1815	#endif
1816	}
1817	}
1818	RTLdrClose(hLdrMod);
1819	return rc;
1820	}
1821
1822
1823	SUPR3DECL(int) SUPFreeModule(void *pvImageBase)
1824	{
1825	/* fake */
1826	if (RT_UNLIKELY(g_u32FakeMode))
1827	{
1828	g_pvVMMR0 = NIL_RTR0PTR;
1829	return VINF_SUCCESS;
1830	}
1831
1832	/*
1833	* Free the requested module.
1834	*/
1835	SUPLDRFREE Req;
1836	Req.Hdr.u32Cookie = g_u32Cookie;
1837	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1838	Req.Hdr.cbIn = SUP_IOCTL_LDR_FREE_SIZE_IN;
1839	Req.Hdr.cbOut = SUP_IOCTL_LDR_FREE_SIZE_OUT;
1840	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1841	Req.Hdr.rc = VERR_INTERNAL_ERROR;
1842	Req.u.In.pvImageBase = (RTR0PTR)pvImageBase;
1843	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LDR_FREE, &Req, SUP_IOCTL_LDR_FREE_SIZE);
1844	if (RT_SUCCESS(rc))
1845	rc = Req.Hdr.rc;
1846	if ( RT_SUCCESS(rc)
1847	&& (RTR0PTR)pvImageBase == g_pvVMMR0)
1848	g_pvVMMR0 = NIL_RTR0PTR;
1849	return rc;
1850	}
1851
1852
1853	SUPR3DECL(int) SUPGetSymbolR0(void pvImageBase, const char pszSymbol, void **ppvValue)
1854	{
1855	*ppvValue = NULL;
1856
1857	/* fake */
1858	if (RT_UNLIKELY(g_u32FakeMode))
1859	{
1860	ppvValue = (void )(uintptr_t)0xdeadf00d;
1861	return VINF_SUCCESS;
1862	}
1863
1864	/*
1865	* Do ioctl.
1866	*/
1867	SUPLDRGETSYMBOL Req;
1868	Req.Hdr.u32Cookie = g_u32Cookie;
1869	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1870	Req.Hdr.cbIn = SUP_IOCTL_LDR_GET_SYMBOL_SIZE_IN;
1871	Req.Hdr.cbOut = SUP_IOCTL_LDR_GET_SYMBOL_SIZE_OUT;
1872	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1873	Req.Hdr.rc = VERR_INTERNAL_ERROR;
1874	Req.u.In.pvImageBase = (RTR0PTR)pvImageBase;
1875	size_t cchSymbol = strlen(pszSymbol);
1876	if (cchSymbol >= sizeof(Req.u.In.szSymbol))
1877	return VERR_SYMBOL_NOT_FOUND;
1878	memcpy(Req.u.In.szSymbol, pszSymbol, cchSymbol + 1);
1879	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LDR_GET_SYMBOL, &Req, SUP_IOCTL_LDR_GET_SYMBOL_SIZE);
1880	if (RT_SUCCESS(rc))
1881	rc = Req.Hdr.rc;
1882	if (RT_SUCCESS(rc))
1883	ppvValue = (void )Req.u.Out.pvSymbol;
1884	return rc;
1885	}
1886
1887
1888	SUPR3DECL(int) SUPLoadVMM(const char *pszFilename)
1889	{
1890	void *pvImageBase;
1891	return SUPLoadModule(pszFilename, "VMMR0.r0", &pvImageBase);
1892	}
1893
1894
1895	SUPR3DECL(int) SUPUnloadVMM(void)
1896	{
1897	return SUPFreeModule((void*)g_pvVMMR0);
1898	}
1899
1900
1901	SUPR3DECL(int) SUPGipGetPhys(PRTHCPHYS pHCPhys)
1902	{
1903	if (g_pSUPGlobalInfoPage)
1904	{
1905	*pHCPhys = g_HCPhysSUPGlobalInfoPage;
1906	return VINF_SUCCESS;
1907	}
1908	*pHCPhys = NIL_RTHCPHYS;
1909	return VERR_WRONG_ORDER;
1910	}
1911
1912
1913	/**
1914	* Worker for SUPR3HardenedLdrLoad and SUPR3HardenedLdrLoadAppPriv.
1915	*
1916	* @returns iprt status code.
1917	* @param pszFilename The full file name.
1918	* @param phLdrMod Where to store the handle to the loaded module.
1919	*/
1920	static int supR3HardenedLdrLoadIt(const char *pszFilename, PRTLDRMOD phLdrMod)
1921	{
1922	#ifdef VBOX_WITH_HARDENING
1923	/*
1924	* Verify the image file.
1925	*/
1926	int rc = supR3HardenedVerifyFile(pszFilename, false /* fFatal */);
1927	if (RT_FAILURE(rc))
1928	{
1929	LogRel(("supR3HardenedLdrLoadIt: Verification of \"%s\" failed, rc=%Rrc\n", pszFilename, rc));
1930	return rc;
1931	}
1932	#endif
1933
1934	/*
1935	* Try load it.
1936	*/
1937	return RTLdrLoad(pszFilename, phLdrMod);
1938	}
1939
1940
1941	SUPR3DECL(int) SUPR3HardenedLdrLoad(const char *pszFilename, PRTLDRMOD phLdrMod)
1942	{
1943	/*
1944	* Validate input.
1945	*/
1946	AssertPtrReturn(pszFilename, VERR_INVALID_PARAMETER);
1947	AssertPtrReturn(phLdrMod, VERR_INVALID_PARAMETER);
1948	*phLdrMod = NIL_RTLDRMOD;
1949	AssertReturn(RTPathHavePath(pszFilename), VERR_INVALID_PARAMETER);
1950
1951	/*
1952	* Add the default extension if it's missing.
1953	*/
1954	if (!RTPathHaveExt(pszFilename))
1955	{
1956	const char *pszSuff = RTLdrGetSuff();
1957	size_t cchSuff = strlen(pszSuff);
1958	size_t cchFilename = strlen(pszFilename);
1959	char psz = (char )alloca(cchFilename + cchSuff + 1);
1960	AssertReturn(psz, VERR_NO_TMP_MEMORY);
1961	memcpy(psz, pszFilename, cchFilename);
1962	memcpy(psz + cchFilename, pszSuff, cchSuff + 1);
1963	pszFilename = psz;
1964	}
1965
1966	/*
1967	* Pass it on to the common library loader.
1968	*/
1969	return supR3HardenedLdrLoadIt(pszFilename, phLdrMod);
1970	}
1971
1972
1973	SUPR3DECL(int) SUPR3HardenedLdrLoadAppPriv(const char *pszFilename, PRTLDRMOD phLdrMod)
1974	{
1975	LogFlow(("SUPR3HardenedLdrLoadAppPriv: pszFilename=%p:{%s} phLdrMod=%p\n", pszFilename, pszFilename, phLdrMod));
1976
1977	/*
1978	* Validate input.
1979	*/
1980	AssertPtrReturn(phLdrMod, VERR_INVALID_PARAMETER);
1981	*phLdrMod = NIL_RTLDRMOD;
1982	AssertPtrReturn(pszFilename, VERR_INVALID_PARAMETER);
1983	AssertMsgReturn(!RTPathHavePath(pszFilename), ("%s\n", pszFilename), VERR_INVALID_PARAMETER);
1984
1985	/*
1986	* Check the filename.
1987	*/
1988	size_t cchFilename = strlen(pszFilename);
1989	AssertMsgReturn(cchFilename < (RTPATH_MAX / 4) * 3, ("%zu\n", cchFilename), VERR_INVALID_PARAMETER);
1990
1991	const char *pszExt = "";
1992	size_t cchExt = 0;
1993	if (!RTPathHaveExt(pszFilename))
1994	{
1995	pszExt = RTLdrGetSuff();
1996	cchExt = strlen(pszExt);
1997	}
1998
1999	/*
2000	* Construct the private arch path and check if the file exists.
2001	*/
2002	char szPath[RTPATH_MAX];
2003	int rc = RTPathAppPrivateArch(szPath, sizeof(szPath) - 1 - cchExt - cchFilename);
2004	AssertRCReturn(rc, rc);
2005
2006	char *psz = strchr(szPath, '\0');
2007	*psz++ = RTPATH_SLASH;
2008	memcpy(psz, pszFilename, cchFilename);
2009	psz += cchFilename;
2010	memcpy(psz, pszExt, cchExt + 1);
2011
2012	if (!RTPathExists(szPath))
2013	{
2014	LogRel(("SUPR3HardenedLdrLoadAppPriv: \"%s\" not found\n", szPath));
2015	return VERR_FILE_NOT_FOUND;
2016	}
2017
2018	/*
2019	* Pass it on to SUPR3HardenedLdrLoad.
2020	*/
2021	rc = SUPR3HardenedLdrLoad(szPath, phLdrMod);
2022
2023	LogFlow(("SUPR3HardenedLdrLoadAppPriv: returns %Rrc\n", rc));
2024	return rc;
2025	}
2026

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source: vbox/trunk/src/VBox/HostDrivers/Support/SUPLib.cpp@ 19167

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