SUPDrvInternal.h@ 26600

Last change on this file since 26600 was 25591, checked in by vboxsync, 15 years ago
fix for compiling against Linux 2.6.33+
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1	/* $Revision: 25591 $ */
2	/** @file
3	* VirtualBox Support Driver - Internal header.
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	#ifndef ___SUPDrvInternal_h
32	#define ___SUPDrvInternal_h
33
34
35	/*******************************************************************************
36	* Header Files *
37	*******************************************************************************/
38	#include <VBox/cdefs.h>
39	#include <VBox/types.h>
40	#include <iprt/assert.h>
41	#include <iprt/asm.h>
42	#include <VBox/sup.h>
43	#include <iprt/memobj.h>
44	#include <iprt/time.h>
45	#include <iprt/timer.h>
46	#include <iprt/string.h>
47	#include <iprt/err.h>
48
49	#ifdef SUPDRV_AGNOSTIC
50	/* do nothing */
51
52	#elif defined(RT_OS_WINDOWS)
53	RT_C_DECLS_BEGIN
54	# if (_MSC_VER >= 1400) && !defined(VBOX_WITH_PATCHED_DDK)
55	# define _InterlockedExchange _InterlockedExchange_StupidDDKVsCompilerCrap
56	# define _InterlockedExchangeAdd _InterlockedExchangeAdd_StupidDDKVsCompilerCrap
57	# define _InterlockedCompareExchange _InterlockedCompareExchange_StupidDDKVsCompilerCrap
58	# define _InterlockedAddLargeStatistic _InterlockedAddLargeStatistic_StupidDDKVsCompilerCrap
59	# define _interlockedbittestandset _interlockedbittestandset_StupidDDKVsCompilerCrap
60	# define _interlockedbittestandreset _interlockedbittestandreset_StupidDDKVsCompilerCrap
61	# define _interlockedbittestandset64 _interlockedbittestandset64_StupidDDKVsCompilerCrap
62	# define _interlockedbittestandreset64 _interlockedbittestandreset64_StupidDDKVsCompilerCrap
63	# pragma warning(disable : 4163)
64	# include <ntddk.h>
65	# pragma warning(default : 4163)
66	# undef _InterlockedExchange
67	# undef _InterlockedExchangeAdd
68	# undef _InterlockedCompareExchange
69	# undef _InterlockedAddLargeStatistic
70	# undef _interlockedbittestandset
71	# undef _interlockedbittestandreset
72	# undef _interlockedbittestandset64
73	# undef _interlockedbittestandreset64
74	# else
75	# include <ntddk.h>
76	# endif
77	# include <memory.h>
78	# define memcmp(a,b,c) mymemcmp(a,b,c)
79	int VBOXCALL mymemcmp(const void , const void , size_t);
80	RT_C_DECLS_END
81
82	#elif defined(RT_OS_LINUX)
83	# ifndef AUTOCONF_INCLUDED
84	# include <linux/autoconf.h>
85	# endif
86	# include <linux/version.h>
87	# if defined(CONFIG_MODVERSIONS) && !defined(MODVERSIONS)
88	# define MODVERSIONS
89	# if LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 71)
90	# include <linux/modversions.h>
91	# endif
92	# endif
93	# if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 0)
94	# undef ALIGN
95	# endif
96	# ifndef KBUILD_STR
97	# if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 16)
98	# define KBUILD_STR(s) s
99	# else
100	# define KBUILD_STR(s) #s
101	# endif
102	# endif
103	# include <linux/string.h>
104	# include <linux/spinlock.h>
105	# include <linux/slab.h>
106	# if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
107	# include <linux/semaphore.h>
108	# else /* older kernels */
109	# include <asm/semaphore.h>
110	# endif /* older kernels */
111	# include <linux/timer.h>
112
113	# if 0
114	# include <linux/hrtimer.h>
115	# define VBOX_HRTIMER
116	# endif
117
118	#elif defined(RT_OS_DARWIN)
119	# include <libkern/libkern.h>
120	# include <iprt/string.h>
121
122	#elif defined(RT_OS_OS2)
123
124	#elif defined(RT_OS_FREEBSD)
125	# define memset libkern_memset /** @todo these are just hacks to get it compiling, check out later. */
126	# define memcmp libkern_memcmp
127	# define strchr libkern_strchr
128	# define strrchr libkern_strrchr
129	# define ffsl libkern_ffsl
130	# define fls libkern_fls
131	# define flsl libkern_flsl
132	# include <sys/libkern.h>
133	# undef memset
134	# undef memcmp
135	# undef strchr
136	# undef strrchr
137	# undef ffs
138	# undef ffsl
139	# undef fls
140	# undef flsl
141	# include <iprt/string.h>
142
143	#elif defined(RT_OS_SOLARIS)
144	# include <sys/cmn_err.h>
145	# include <iprt/string.h>
146
147	#else
148	# error "unsupported OS."
149	#endif
150
151	#include "SUPDrvIOC.h"
152	#include "SUPDrvIDC.h"
153
154
155
156	/*******************************************************************************
157	* Defined Constants And Macros *
158	*******************************************************************************/
159	/*
160	* Hardcoded cookies.
161	*/
162	#define BIRD 0x64726962 /* 'bird' */
163	#define BIRD_INV 0x62697264 /* 'drib' */
164
165
166	#ifdef RT_OS_WINDOWS
167	/** Use a normal mutex for the loader so we remain at the same IRQL after
168	* taking it.
169	* @todo fix the mutex implementation on linux and make this the default. */
170	# define SUPDRV_USE_MUTEX_FOR_LDR
171
172	/** Use a normal mutex for the GIP so we remain at the same IRQL after
173	* taking it.
174	* @todo fix the mutex implementation on linux and make this the default. */
175	# define SUPDRV_USE_MUTEX_FOR_GIP
176	#endif
177
178
179	/**
180	* OS debug print macro.
181	*/
182	#define OSDBGPRINT(a) SUPR0Printf a
183
184
185	/** @name Context values for the per-session handle tables.
186	* The context value is used to distiguish between the different kinds of
187	* handles, making the handle table API do all the work.
188	* @{ */
189	/** Handle context value for single release event handles. */
190	#define SUPDRV_HANDLE_CTX_EVENT ((void *)(uintptr_t)(SUPDRVOBJTYPE_SEM_EVENT))
191	/** Handle context value for multiple release event handles. */
192	#define SUPDRV_HANDLE_CTX_EVENT_MULTI ((void *)(uintptr_t)(SUPDRVOBJTYPE_SEM_EVENT_MULTI))
193	/** @} */
194
195
196	/**
197	* Validates a session pointer.
198	*
199	* @returns true/false accordingly.
200	* @param pSession The session.
201	*/
202	#define SUP_IS_SESSION_VALID(pSession) \
203	( VALID_PTR(pSession) \
204	&& pSession->u32Cookie == BIRD_INV)
205
206
207	/*******************************************************************************
208	* Structures and Typedefs *
209	*******************************************************************************/
210	/** Pointer to the device extension. */
211	typedef struct SUPDRVDEVEXT *PSUPDRVDEVEXT;
212
213
214	/**
215	* Memory reference types.
216	*/
217	typedef enum
218	{
219	/** Unused entry */
220	MEMREF_TYPE_UNUSED = 0,
221	/** Locked memory (r3 mapping only). */
222	MEMREF_TYPE_LOCKED,
223	/** Continous memory block (r3 and r0 mapping). */
224	MEMREF_TYPE_CONT,
225	/** Low memory block (r3 and r0 mapping). */
226	MEMREF_TYPE_LOW,
227	/** Memory block (r3 and r0 mapping). */
228	MEMREF_TYPE_MEM,
229	/** Locked memory (r3 mapping only) allocated by the support driver. */
230	MEMREF_TYPE_PAGE,
231	/** Blow the type up to 32-bit and mark the end. */
232	MEMREG_TYPE_32BIT_HACK = 0x7fffffff
233	} SUPDRVMEMREFTYPE, *PSUPDRVMEMREFTYPE;
234
235
236	/**
237	* Structure used for tracking memory a session
238	* references in one way or another.
239	*/
240	typedef struct SUPDRVMEMREF
241	{
242	/** The memory object handle. */
243	RTR0MEMOBJ MemObj;
244	/** The ring-3 mapping memory object handle. */
245	RTR0MEMOBJ MapObjR3;
246	/** Type of memory. */
247	SUPDRVMEMREFTYPE eType;
248	} SUPDRVMEMREF, *PSUPDRVMEMREF;
249
250
251	/**
252	* Bundle of locked memory ranges.
253	*/
254	typedef struct SUPDRVBUNDLE
255	{
256	/** Pointer to the next bundle. */
257	struct SUPDRVBUNDLE * volatile pNext;
258	/** Referenced memory. */
259	SUPDRVMEMREF aMem[64];
260	/** Number of entries used. */
261	uint32_t volatile cUsed;
262	} SUPDRVBUNDLE, *PSUPDRVBUNDLE;
263
264
265	/**
266	* Loaded image.
267	*/
268	typedef struct SUPDRVLDRIMAGE
269	{
270	/** Next in chain. */
271	struct SUPDRVLDRIMAGE * volatile pNext;
272	/** Pointer to the image. */
273	void *pvImage;
274	/** Pointer to the allocated image buffer.
275	* pvImage is 32-byte aligned or it may governed by the native loader (this
276	* member is NULL then). */
277	void *pvImageAlloc;
278	/** Size of the image including the tables. This is mainly for verification
279	* of the load request. */
280	uint32_t cbImageWithTabs;
281	/** Size of the image. */
282	uint32_t cbImageBits;
283	/** The number of entries in the symbol table. */
284	uint32_t cSymbols;
285	/** Pointer to the symbol table. */
286	PSUPLDRSYM paSymbols;
287	/** The offset of the string table. */
288	char *pachStrTab;
289	/** Size of the string table. */
290	uint32_t cbStrTab;
291	/** Pointer to the optional module initialization callback. */
292	PFNR0MODULEINIT pfnModuleInit;
293	/** Pointer to the optional module termination callback. */
294	PFNR0MODULETERM pfnModuleTerm;
295	/** Service request handler. This is NULL for non-service modules. */
296	PFNSUPR0SERVICEREQHANDLER pfnServiceReqHandler;
297	/** The ldr image state. (IOCtl code of last opration.) */
298	uint32_t uState;
299	/** Usage count. */
300	uint32_t volatile cUsage;
301	#ifdef RT_OS_WINDOWS
302	/** The section object for the loaded image (fNative=true). */
303	void *pvNtSectionObj;
304	/** Lock object. */
305	RTR0MEMOBJ hMemLock;
306	#endif
307	/** Whether it's loaded by the native loader or not. */
308	bool fNative;
309	/** Image name. */
310	char szName[32];
311	} SUPDRVLDRIMAGE, *PSUPDRVLDRIMAGE;
312
313
314	/** Image usage record. */
315	typedef struct SUPDRVLDRUSAGE
316	{
317	/** Next in chain. */
318	struct SUPDRVLDRUSAGE * volatile pNext;
319	/** The image. */
320	PSUPDRVLDRIMAGE pImage;
321	/** Load count. */
322	uint32_t volatile cUsage;
323	} SUPDRVLDRUSAGE, *PSUPDRVLDRUSAGE;
324
325
326	/**
327	* Component factory registration record.
328	*/
329	typedef struct SUPDRVFACTORYREG
330	{
331	/** Pointer to the next registration. */
332	struct SUPDRVFACTORYREG *pNext;
333	/** Pointer to the registered factory. */
334	PCSUPDRVFACTORY pFactory;
335	/** The session owning the factory.
336	* Used for deregistration and session cleanup. */
337	PSUPDRVSESSION pSession;
338	/** Length of the name. */
339	size_t cchName;
340	} SUPDRVFACTORYREG;
341	/** Pointer to a component factory registration record. */
342	typedef SUPDRVFACTORYREG *PSUPDRVFACTORYREG;
343	/** Pointer to a const component factory registration record. */
344	typedef SUPDRVFACTORYREG const *PCSUPDRVFACTORYREG;
345
346
347	/**
348	* Registered object.
349	* This takes care of reference counting and tracking data for access checks.
350	*/
351	typedef struct SUPDRVOBJ
352	{
353	/** Magic value (SUPDRVOBJ_MAGIC). */
354	uint32_t u32Magic;
355	/** The object type. */
356	SUPDRVOBJTYPE enmType;
357	/** Pointer to the next in the global list. */
358	struct SUPDRVOBJ * volatile pNext;
359	/** Pointer to the object destructor.
360	* This may be set to NULL if the image containing the destructor get unloaded. */
361	PFNSUPDRVDESTRUCTOR pfnDestructor;
362	/** User argument 1. */
363	void *pvUser1;
364	/** User argument 2. */
365	void *pvUser2;
366	/** The total sum of all per-session usage. */
367	uint32_t volatile cUsage;
368	/** The creator user id. */
369	RTUID CreatorUid;
370	/** The creator group id. */
371	RTGID CreatorGid;
372	/** The creator process id. */
373	RTPROCESS CreatorProcess;
374	} SUPDRVOBJ, *PSUPDRVOBJ;
375
376	/** Magic number for SUPDRVOBJ::u32Magic. (Dame Agatha Mary Clarissa Christie). */
377	#define SUPDRVOBJ_MAGIC 0x18900915
378	/** Dead number magic for SUPDRVOBJ::u32Magic. */
379	#define SUPDRVOBJ_MAGIC_DEAD 0x19760112
380
381	/**
382	* The per-session object usage record.
383	*/
384	typedef struct SUPDRVUSAGE
385	{
386	/** Pointer to the next in the list. */
387	struct SUPDRVUSAGE * volatile pNext;
388	/** Pointer to the object we're recording usage for. */
389	PSUPDRVOBJ pObj;
390	/** The usage count. */
391	uint32_t volatile cUsage;
392	} SUPDRVUSAGE, *PSUPDRVUSAGE;
393
394
395	/**
396	* Per session data.
397	* This is mainly for memory tracking.
398	*/
399	typedef struct SUPDRVSESSION
400	{
401	/** Pointer to the device extension. */
402	PSUPDRVDEVEXT pDevExt;
403	/** Session Cookie. */
404	uint32_t u32Cookie;
405
406	/** The VM associated with the session. */
407	PVM pVM;
408	/** Handle table for IPRT semaphore wrapper APIs.
409	* Programmable from R0 and R3. */
410	RTHANDLETABLE hHandleTable;
411	/** Load usage records. (protected by SUPDRVDEVEXT::mtxLdr) */
412	PSUPDRVLDRUSAGE volatile pLdrUsage;
413
414	/** Spinlock protecting the bundles and the GIP members. */
415	RTSPINLOCK Spinlock;
416	/** The ring-3 mapping of the GIP (readonly). */
417	RTR0MEMOBJ GipMapObjR3;
418	/** Set if the session is using the GIP. */
419	uint32_t fGipReferenced;
420	/** Bundle of locked memory objects. */
421	SUPDRVBUNDLE Bundle;
422	/** List of generic usage records. (protected by SUPDRVDEVEXT::SpinLock) */
423	PSUPDRVUSAGE volatile pUsage;
424
425	/** The user id of the session. (Set by the OS part.) */
426	RTUID Uid;
427	/** The group id of the session. (Set by the OS part.) */
428	RTGID Gid;
429	/** The process (id) of the session. */
430	RTPROCESS Process;
431	/** Which process this session is associated with.
432	* This is NIL_RTR0PROCESS for kernel sessions and valid for user ones. */
433	RTR0PROCESS R0Process;
434	#ifndef SUPDRV_AGNOSTIC
435	# if defined(RT_OS_DARWIN)
436	/** Pointer to the associated org_virtualbox_SupDrvClient object. */
437	void *pvSupDrvClient;
438	/** Whether this session has been opened or not. */
439	bool fOpened;
440	# endif
441	# if defined(RT_OS_OS2)
442	/** The system file number of this session. */
443	uint16_t sfn;
444	uint16_t Alignment; /*< Alignment /
445	# endif
446	# if defined(RT_OS_DARWIN) \|\| defined(RT_OS_OS2) \|\| defined(RT_OS_SOLARIS)
447	/** Pointer to the next session with the same hash. */
448	PSUPDRVSESSION pNextHash;
449	# endif
450	#endif /* !SUPDRV_AGNOSTIC */
451	} SUPDRVSESSION;
452
453
454	/**
455	* Device extension.
456	*/
457	typedef struct SUPDRVDEVEXT
458	{
459	/** Spinlock to serialize the initialization, usage counting and objects. */
460	RTSPINLOCK Spinlock;
461
462	/** List of registered objects. Protected by the spinlock. */
463	PSUPDRVOBJ volatile pObjs;
464	/** List of free object usage records. */
465	PSUPDRVUSAGE volatile pUsageFree;
466
467	/** Global cookie. */
468	uint32_t u32Cookie;
469	/** The actual size of SUPDRVSESSION. (SUPDRV_AGNOSTIC) */
470	uint32_t cbSession;
471
472	/** Loader mutex.
473	* This protects pvVMMR0, pvVMMR0Entry, pImages and SUPDRVSESSION::pLdrUsage. */
474	#ifdef SUPDRV_USE_MUTEX_FOR_LDR
475	RTSEMMUTEX mtxLdr;
476	#else
477	RTSEMFASTMUTEX mtxLdr;
478	#endif
479
480	/** VMM Module 'handle'.
481	* 0 if the code VMM isn't loaded and Idt are nops. */
482	void * volatile pvVMMR0;
483	/** VMMR0EntryInt() pointer. */
484	DECLR0CALLBACKMEMBER(int, pfnVMMR0EntryInt, (PVM pVM, unsigned uOperation, void *pvArg));
485	/** VMMR0EntryFast() pointer. */
486	DECLR0CALLBACKMEMBER(void, pfnVMMR0EntryFast, (PVM pVM, VMCPUID idCpu, unsigned uOperation));
487	/** VMMR0EntryEx() pointer. */
488	DECLR0CALLBACKMEMBER(int, pfnVMMR0EntryEx, (PVM pVM, VMCPUID idCpu, unsigned uOperation, PSUPVMMR0REQHDR pReq, uint64_t u64Arg, PSUPDRVSESSION pSession));
489
490	/** Linked list of loaded code. */
491	PSUPDRVLDRIMAGE volatile pLdrImages;
492
493	/** GIP mutex.
494	* Any changes to any of the GIP members requires ownership of this mutex,
495	* except on driver init and termination. */
496	#ifdef SUPDRV_USE_MUTEX_FOR_GIP
497	RTSEMMUTEX mtxGip;
498	#else
499	RTSEMFASTMUTEX mtxGip;
500	#endif
501	/** Pointer to the Global Info Page (GIP). */
502	PSUPGLOBALINFOPAGE pGip;
503	/** The physical address of the GIP. */
504	RTHCPHYS HCPhysGip;
505	/** Number of processes using the GIP.
506	* (The updates are suspend while cGipUsers is 0.)*/
507	uint32_t volatile cGipUsers;
508	/** The ring-0 memory object handle for the GIP page. */
509	RTR0MEMOBJ GipMemObj;
510	/** The GIP timer handle. */
511	PRTTIMER pGipTimer;
512	/** If non-zero we've successfully called RTTimerRequestSystemGranularity(). */
513	uint32_t u32SystemTimerGranularityGrant;
514	/** The CPU id of the GIP master.
515	* This CPU is responsible for the updating the common GIP data. */
516	RTCPUID volatile idGipMaster;
517
518	/** Component factory mutex.
519	* This protects pComponentFactoryHead and component factory querying. */
520	RTSEMFASTMUTEX mtxComponentFactory;
521	/** The head of the list of registered component factories. */
522	PSUPDRVFACTORYREG pComponentFactoryHead;
523
524	#ifndef SUPDRV_AGNOSTIC
525	# ifdef RT_OS_WINDOWS
526	/* Callback object returned by ExCreateCallback. */
527	PCALLBACK_OBJECT pObjPowerCallback;
528	/* Callback handle returned by ExRegisterCallback. */
529	PVOID hPowerCallback;
530	# endif
531	#endif
532	} SUPDRVDEVEXT;
533
534
535	RT_C_DECLS_BEGIN
536
537	/*******************************************************************************
538	* OS Specific Functions *
539	*******************************************************************************/
540	void VBOXCALL supdrvOSObjInitCreator(PSUPDRVOBJ pObj, PSUPDRVSESSION pSession);
541	bool VBOXCALL supdrvOSObjCanAccess(PSUPDRVOBJ pObj, PSUPDRVSESSION pSession, const char pszObjName, int prc);
542	bool VBOXCALL supdrvOSGetForcedAsyncTscMode(PSUPDRVDEVEXT pDevExt);
543	int VBOXCALL supdrvOSEnableVTx(bool fEnabled);
544
545	/**
546	* Try open the image using the native loader.
547	*
548	* @returns IPRT status code.
549	* @retval VERR_NOT_SUPPORTED if native loading isn't supported.
550	*
551	* @param pDevExt The device globals.
552	* @param pImage The image handle. pvImage should be set on
553	* success, pvImageAlloc can also be set if
554	* appropriate.
555	* @param pszFilename The file name - UTF-8, may containg UNIX
556	* slashes on non-UNIX systems.
557	*/
558	int VBOXCALL supdrvOSLdrOpen(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage, const char *pszFilename);
559
560	/**
561	* Validates an entry point address.
562	*
563	* Called before supdrvOSLdrLoad.
564	*
565	* @returns IPRT status code.
566	* @param pDevExt The device globals.
567	* @param pImage The image data (still in the open state).
568	* @param pv The address within the image.
569	* @param pbImageBits The image bits as loaded by ring-3.
570	*/
571	int VBOXCALL supdrvOSLdrValidatePointer(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage,
572	void pv, const uint8_t pbImageBits);
573
574	/**
575	* Load the image.
576	*
577	* @returns IPRT status code.
578	* @param pDevExt The device globals.
579	* @param pImage The image data (up to date except for some
580	* entry point pointers).
581	* @param pbImageBits The image bits as loaded by ring-3.
582	*/
583	int VBOXCALL supdrvOSLdrLoad(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage, const uint8_t *pbImageBits);
584
585
586	/**
587	* Unload the image.
588	*
589	* @param pDevExt The device globals.
590	* @param pImage The image data (mostly still valid).
591	*/
592	void VBOXCALL supdrvOSLdrUnload(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage);
593
594
595	/*******************************************************************************
596	* Shared Functions *
597	*******************************************************************************/
598	/* SUPDrv.c */
599	int VBOXCALL supdrvIOCtl(uintptr_t uIOCtl, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPREQHDR pReqHdr);
600	int VBOXCALL supdrvIOCtlFast(uintptr_t uIOCtl, VMCPUID idCpu, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession);
601	int VBOXCALL supdrvIDC(uintptr_t uIOCtl, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPDRVIDCREQHDR pReqHdr);
602	int VBOXCALL supdrvInitDevExt(PSUPDRVDEVEXT pDevExt, size_t cbSession);
603	void VBOXCALL supdrvDeleteDevExt(PSUPDRVDEVEXT pDevExt);
604	int VBOXCALL supdrvCreateSession(PSUPDRVDEVEXT pDevExt, bool fUser, PSUPDRVSESSION *ppSession);
605	void VBOXCALL supdrvCloseSession(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession);
606	void VBOXCALL supdrvCleanupSession(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession);
607
608	RT_C_DECLS_END
609
610	#endif
611

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source: vbox/trunk/src/VBox/HostDrivers/Support/SUPDrvInternal.h@ 26600

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