DrvHostBase.cpp@ 23973

Last change on this file since 23973 was 23973, checked in by vboxsync, 15 years ago
*,RTFileOpen: Fixing RTFileOpen flag misdesign: The deny, access and action flags are mandatory now.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
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1	/* $Id: DrvHostBase.cpp 23973 2009-10-22 12:34:22Z vboxsync $ */
2	/** @file
3	* DrvHostBase - Host base drive access driver.
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	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
18	* Clara, CA 95054 USA or visit http://www.sun.com if you need
19	* additional information or have any questions.
20	*/
21
22
23	/*******************************************************************************
24	* Header Files *
25	*******************************************************************************/
26	#define LOG_GROUP LOG_GROUP_DRV_HOST_BASE
27	#ifdef RT_OS_DARWIN
28	# include <mach/mach.h>
29	# include <Carbon/Carbon.h>
30	# include <IOKit/IOKitLib.h>
31	# include <IOKit/storage/IOStorageDeviceCharacteristics.h>
32	# include <IOKit/scsi/SCSITaskLib.h>
33	# include <IOKit/scsi/SCSICommandOperationCodes.h>
34	# include <IOKit/IOBSD.h>
35	# include <DiskArbitration/DiskArbitration.h>
36	# include <mach/mach_error.h>
37	# include <VBox/scsi.h>
38
39	#elif defined(RT_OS_L4)
40	/* Nothing special requires... yeah, right. */
41
42	#elif defined(RT_OS_LINUX)
43	# include <sys/ioctl.h>
44	# include <sys/fcntl.h>
45	# include <errno.h>
46
47	#elif defined(RT_OS_SOLARIS)
48	# include <fcntl.h>
49	# include <errno.h>
50	# include <stropts.h>
51	# include <malloc.h>
52	# include <sys/dkio.h>
53	extern "C" char getfullblkname(char );
54
55	#elif defined(RT_OS_WINDOWS)
56	# define WIN32_NO_STATUS
57	# include <Windows.h>
58	# include <dbt.h>
59	# undef WIN32_NO_STATUS
60	# include <ntstatus.h>
61
62	/* from ntdef.h */
63	typedef LONG NTSTATUS;
64
65	/* from ntddk.h */
66	typedef struct _IO_STATUS_BLOCK {
67	union {
68	NTSTATUS Status;
69	PVOID Pointer;
70	};
71	ULONG_PTR Information;
72	} IO_STATUS_BLOCK, *PIO_STATUS_BLOCK;
73
74
75	/* from ntinternals.com */
76	typedef enum _FS_INFORMATION_CLASS {
77	FileFsVolumeInformation=1,
78	FileFsLabelInformation,
79	FileFsSizeInformation,
80	FileFsDeviceInformation,
81	FileFsAttributeInformation,
82	FileFsControlInformation,
83	FileFsFullSizeInformation,
84	FileFsObjectIdInformation,
85	FileFsMaximumInformation
86	} FS_INFORMATION_CLASS, *PFS_INFORMATION_CLASS;
87
88	typedef struct _FILE_FS_SIZE_INFORMATION {
89	LARGE_INTEGER TotalAllocationUnits;
90	LARGE_INTEGER AvailableAllocationUnits;
91	ULONG SectorsPerAllocationUnit;
92	ULONG BytesPerSector;
93	} FILE_FS_SIZE_INFORMATION, *PFILE_FS_SIZE_INFORMATION;
94
95	extern "C"
96	NTSTATUS __stdcall NtQueryVolumeInformationFile(
97	/IN/ HANDLE FileHandle,
98	/OUT/ PIO_STATUS_BLOCK IoStatusBlock,
99	/OUT/ PVOID FileSystemInformation,
100	/IN/ ULONG Length,
101	/IN/ FS_INFORMATION_CLASS FileSystemInformationClass );
102
103	#elif defined(RT_OS_FREEBSD)
104	# include <sys/cdefs.h>
105	# include <sys/param.h>
106	# include <errno.h>
107	# include <stdio.h>
108	# include <cam/cam.h>
109	# include <cam/cam_ccb.h>
110	# include <cam/scsi/scsi_message.h>
111	# include <cam/scsi/scsi_pass.h>
112	# include <VBox/scsi.h>
113	# include <iprt/log.h>
114	#else
115	# error "Unsupported Platform."
116	#endif
117
118	#include <VBox/pdmdrv.h>
119	#include <iprt/assert.h>
120	#include <iprt/file.h>
121	#include <iprt/path.h>
122	#include <iprt/string.h>
123	#include <iprt/thread.h>
124	#include <iprt/semaphore.h>
125	#include <iprt/uuid.h>
126	#include <iprt/asm.h>
127	#include <iprt/critsect.h>
128	#include <iprt/ctype.h>
129
130	#include "DrvHostBase.h"
131
132
133
134
135	/* -=-=-=-=- IBlock -=-=-=-=- */
136
137	/** @copydoc PDMIBLOCK::pfnRead */
138	static DECLCALLBACK(int) drvHostBaseRead(PPDMIBLOCK pInterface, uint64_t off, void *pvBuf, size_t cbRead)
139	{
140	PDRVHOSTBASE pThis = PDMIBLOCK_2_DRVHOSTBASE(pInterface);
141	LogFlow(("%s-%d: drvHostBaseRead: off=%#llx pvBuf=%p cbRead=%#x (%s)\n",
142	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, off, pvBuf, cbRead, pThis->pszDevice));
143	RTCritSectEnter(&pThis->CritSect);
144
145	/*
146	* Check the state.
147	*/
148	int rc;
149	#ifdef RT_OS_DARWIN
150	if ( pThis->fMediaPresent
151	&& pThis->ppScsiTaskDI
152	&& pThis->cbBlock)
153	#elif RT_OS_FREEBSD
154	if ( pThis->fMediaPresent
155	&& pThis->cbBlock)
156	#else
157	if (pThis->fMediaPresent)
158	#endif
159	{
160	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_FREEBSD)
161	/*
162	* Issue a READ(12) request.
163	*/
164	do
165	{
166	const uint32_t LBA = off / pThis->cbBlock;
167	AssertReturn(!(off % pThis->cbBlock), VERR_INVALID_PARAMETER);
168	uint32_t cbRead32 = cbRead > SCSI_MAX_BUFFER_SIZE
169	? SCSI_MAX_BUFFER_SIZE
170	: (uint32_t)cbRead;
171	const uint32_t cBlocks = cbRead32 / pThis->cbBlock;
172	AssertReturn(!(cbRead % pThis->cbBlock), VERR_INVALID_PARAMETER);
173	uint8_t abCmd[16] =
174	{
175	SCSI_READ_12, 0,
176	RT_BYTE4(LBA), RT_BYTE3(LBA), RT_BYTE2(LBA), RT_BYTE1(LBA),
177	RT_BYTE4(cBlocks), RT_BYTE3(cBlocks), RT_BYTE2(cBlocks), RT_BYTE1(cBlocks),
178	0, 0, 0, 0, 0
179	};
180	rc = DRVHostBaseScsiCmd(pThis, abCmd, 12, PDMBLOCKTXDIR_FROM_DEVICE, pvBuf, &cbRead32, NULL, 0, 0);
181
182	off += cbRead32;
183	cbRead -= cbRead32;
184	pvBuf = (uint8_t *)pvBuf + cbRead32;
185	} while ((cbRead > 0) && RT_SUCCESS(rc));
186
187	#else
188	/*
189	* Seek and read.
190	*/
191	rc = RTFileSeek(pThis->FileDevice, off, RTFILE_SEEK_BEGIN, NULL);
192	if (RT_SUCCESS(rc))
193	{
194	rc = RTFileRead(pThis->FileDevice, pvBuf, cbRead, NULL);
195	if (RT_SUCCESS(rc))
196	{
197	Log2(("%s-%d: drvHostBaseRead: off=%#llx cbRead=%#x\n"
198	"%16.*Rhxd\n",
199	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, off, cbRead, cbRead, pvBuf));
200	}
201	else
202	Log(("%s-%d: drvHostBaseRead: RTFileRead(%d, %p, %#x) -> %Rrc (off=%#llx '%s')\n",
203	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->FileDevice,
204	pvBuf, cbRead, rc, off, pThis->pszDevice));
205	}
206	else
207	Log(("%s-%d: drvHostBaseRead: RTFileSeek(%d,%#llx,) -> %Rrc\n", pThis->pDrvIns->pDrvReg->szDriverName,
208	pThis->pDrvIns->iInstance, pThis->FileDevice, off, rc));
209	#endif
210	}
211	else
212	rc = VERR_MEDIA_NOT_PRESENT;
213
214	RTCritSectLeave(&pThis->CritSect);
215	LogFlow(("%s-%d: drvHostBaseRead: returns %Rrc\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, rc));
216	return rc;
217	}
218
219
220	/** @copydoc PDMIBLOCK::pfnWrite */
221	static DECLCALLBACK(int) drvHostBaseWrite(PPDMIBLOCK pInterface, uint64_t off, const void *pvBuf, size_t cbWrite)
222	{
223	PDRVHOSTBASE pThis = PDMIBLOCK_2_DRVHOSTBASE(pInterface);
224	LogFlow(("%s-%d: drvHostBaseWrite: off=%#llx pvBuf=%p cbWrite=%#x (%s)\n",
225	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, off, pvBuf, cbWrite, pThis->pszDevice));
226	Log2(("%s-%d: drvHostBaseWrite: off=%#llx cbWrite=%#x\n"
227	"%16.*Rhxd\n",
228	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, off, cbWrite, cbWrite, pvBuf));
229	RTCritSectEnter(&pThis->CritSect);
230
231	/*
232	* Check the state.
233	*/
234	int rc;
235	if (!pThis->fReadOnly)
236	{
237	if (pThis->fMediaPresent)
238	{
239	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_FREEBSD)
240	/** @todo write support... */
241	rc = VERR_WRITE_PROTECT;
242
243	#else
244	/*
245	* Seek and write.
246	*/
247	rc = RTFileSeek(pThis->FileDevice, off, RTFILE_SEEK_BEGIN, NULL);
248	if (RT_SUCCESS(rc))
249	{
250	rc = RTFileWrite(pThis->FileDevice, pvBuf, cbWrite, NULL);
251	if (RT_FAILURE(rc))
252	Log(("%s-%d: drvHostBaseWrite: RTFileWrite(%d, %p, %#x) -> %Rrc (off=%#llx '%s')\n",
253	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->FileDevice,
254	pvBuf, cbWrite, rc, off, pThis->pszDevice));
255	}
256	else
257	Log(("%s-%d: drvHostBaseWrite: RTFileSeek(%d,%#llx,) -> %Rrc\n",
258	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->FileDevice, off, rc));
259	#endif
260	}
261	else
262	rc = VERR_MEDIA_NOT_PRESENT;
263	}
264	else
265	rc = VERR_WRITE_PROTECT;
266
267	RTCritSectLeave(&pThis->CritSect);
268	LogFlow(("%s-%d: drvHostBaseWrite: returns %Rrc\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, rc));
269	return rc;
270	}
271
272
273	/** @copydoc PDMIBLOCK::pfnFlush */
274	static DECLCALLBACK(int) drvHostBaseFlush(PPDMIBLOCK pInterface)
275	{
276	int rc;
277	PDRVHOSTBASE pThis = PDMIBLOCK_2_DRVHOSTBASE(pInterface);
278	LogFlow(("%s-%d: drvHostBaseFlush: (%s)\n",
279	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->pszDevice));
280	RTCritSectEnter(&pThis->CritSect);
281
282	if (pThis->fMediaPresent)
283	{
284	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_FREEBSD)
285	rc = VINF_SUCCESS;
286	/** @todo scsi device buffer flush... */
287	#else
288	rc = RTFileFlush(pThis->FileDevice);
289	#endif
290	}
291	else
292	rc = VERR_MEDIA_NOT_PRESENT;
293
294	RTCritSectLeave(&pThis->CritSect);
295	LogFlow(("%s-%d: drvHostBaseFlush: returns %Rrc\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, rc));
296	return rc;
297	}
298
299
300	/** @copydoc PDMIBLOCK::pfnIsReadOnly */
301	static DECLCALLBACK(bool) drvHostBaseIsReadOnly(PPDMIBLOCK pInterface)
302	{
303	PDRVHOSTBASE pThis = PDMIBLOCK_2_DRVHOSTBASE(pInterface);
304	return pThis->fReadOnly;
305	}
306
307
308	/** @copydoc PDMIBLOCK::pfnGetSize */
309	static DECLCALLBACK(uint64_t) drvHostBaseGetSize(PPDMIBLOCK pInterface)
310	{
311	PDRVHOSTBASE pThis = PDMIBLOCK_2_DRVHOSTBASE(pInterface);
312	RTCritSectEnter(&pThis->CritSect);
313
314	uint64_t cb = 0;
315	if (pThis->fMediaPresent)
316	cb = pThis->cbSize;
317
318	RTCritSectLeave(&pThis->CritSect);
319	LogFlow(("%s-%d: drvHostBaseGetSize: returns %llu\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, cb));
320	return cb;
321	}
322
323
324	/** @copydoc PDMIBLOCK::pfnGetType */
325	static DECLCALLBACK(PDMBLOCKTYPE) drvHostBaseGetType(PPDMIBLOCK pInterface)
326	{
327	PDRVHOSTBASE pThis = PDMIBLOCK_2_DRVHOSTBASE(pInterface);
328	LogFlow(("%s-%d: drvHostBaseGetType: returns %d\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->enmType));
329	return pThis->enmType;
330	}
331
332
333	/** @copydoc PDMIBLOCK::pfnGetUuid */
334	static DECLCALLBACK(int) drvHostBaseGetUuid(PPDMIBLOCK pInterface, PRTUUID pUuid)
335	{
336	PDRVHOSTBASE pThis = PDMIBLOCK_2_DRVHOSTBASE(pInterface);
337
338	*pUuid = pThis->Uuid;
339
340	LogFlow(("%s-%d: drvHostBaseGetUuid: returns VINF_SUCCESS *pUuid=%RTuuid\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pUuid));
341	return VINF_SUCCESS;
342	}
343
344
345	/* -=-=-=-=- IBlockBios -=-=-=-=- */
346
347	/** Makes a PDRVHOSTBASE out of a PPDMIBLOCKBIOS. */
348	#define PDMIBLOCKBIOS_2_DRVHOSTBASE(pInterface) ( (PDRVHOSTBASE((uintptr_t)pInterface - RT_OFFSETOF(DRVHOSTBASE, IBlockBios))) )
349
350
351	/** @copydoc PDMIBLOCKBIOS::pfnGetPCHSGeometry */
352	static DECLCALLBACK(int) drvHostBaseGetPCHSGeometry(PPDMIBLOCKBIOS pInterface, PPDMMEDIAGEOMETRY pPCHSGeometry)
353	{
354	PDRVHOSTBASE pThis = PDMIBLOCKBIOS_2_DRVHOSTBASE(pInterface);
355	RTCritSectEnter(&pThis->CritSect);
356
357	int rc = VINF_SUCCESS;
358	if (pThis->fMediaPresent)
359	{
360	if ( pThis->PCHSGeometry.cCylinders > 0
361	&& pThis->PCHSGeometry.cHeads > 0
362	&& pThis->PCHSGeometry.cSectors > 0)
363	{
364	*pPCHSGeometry = pThis->PCHSGeometry;
365	}
366	else
367	rc = VERR_PDM_GEOMETRY_NOT_SET;
368	}
369	else
370	rc = VERR_PDM_MEDIA_NOT_MOUNTED;
371
372	RTCritSectLeave(&pThis->CritSect);
373	LogFlow(("%s-%d: %s: returns %Rrc CHS={%d,%d,%d}\n",
374	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, __FUNCTION__, rc, pThis->PCHSGeometry.cCylinders, pThis->PCHSGeometry.cHeads, pThis->PCHSGeometry.cSectors));
375	return rc;
376	}
377
378
379	/** @copydoc PDMIBLOCKBIOS::pfnSetPCHSGeometry */
380	static DECLCALLBACK(int) drvHostBaseSetPCHSGeometry(PPDMIBLOCKBIOS pInterface, PCPDMMEDIAGEOMETRY pPCHSGeometry)
381	{
382	PDRVHOSTBASE pThis = PDMIBLOCKBIOS_2_DRVHOSTBASE(pInterface);
383	LogFlow(("%s-%d: %s: cCylinders=%d cHeads=%d cSectors=%d\n",
384	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, __FUNCTION__, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));
385	RTCritSectEnter(&pThis->CritSect);
386
387	int rc = VINF_SUCCESS;
388	if (pThis->fMediaPresent)
389	{
390	pThis->PCHSGeometry = *pPCHSGeometry;
391	}
392	else
393	{
394	AssertMsgFailed(("Invalid state! Not mounted!\n"));
395	rc = VERR_PDM_MEDIA_NOT_MOUNTED;
396	}
397
398	RTCritSectLeave(&pThis->CritSect);
399	return rc;
400	}
401
402
403	/** @copydoc PDMIBLOCKBIOS::pfnGetLCHSGeometry */
404	static DECLCALLBACK(int) drvHostBaseGetLCHSGeometry(PPDMIBLOCKBIOS pInterface, PPDMMEDIAGEOMETRY pLCHSGeometry)
405	{
406	PDRVHOSTBASE pThis = PDMIBLOCKBIOS_2_DRVHOSTBASE(pInterface);
407	RTCritSectEnter(&pThis->CritSect);
408
409	int rc = VINF_SUCCESS;
410	if (pThis->fMediaPresent)
411	{
412	if ( pThis->LCHSGeometry.cCylinders > 0
413	&& pThis->LCHSGeometry.cHeads > 0
414	&& pThis->LCHSGeometry.cSectors > 0)
415	{
416	*pLCHSGeometry = pThis->LCHSGeometry;
417	}
418	else
419	rc = VERR_PDM_GEOMETRY_NOT_SET;
420	}
421	else
422	rc = VERR_PDM_MEDIA_NOT_MOUNTED;
423
424	RTCritSectLeave(&pThis->CritSect);
425	LogFlow(("%s-%d: %s: returns %Rrc CHS={%d,%d,%d}\n",
426	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, __FUNCTION__, rc, pThis->LCHSGeometry.cCylinders, pThis->LCHSGeometry.cHeads, pThis->LCHSGeometry.cSectors));
427	return rc;
428	}
429
430
431	/** @copydoc PDMIBLOCKBIOS::pfnSetLCHSGeometry */
432	static DECLCALLBACK(int) drvHostBaseSetLCHSGeometry(PPDMIBLOCKBIOS pInterface, PCPDMMEDIAGEOMETRY pLCHSGeometry)
433	{
434	PDRVHOSTBASE pThis = PDMIBLOCKBIOS_2_DRVHOSTBASE(pInterface);
435	LogFlow(("%s-%d: %s: cCylinders=%d cHeads=%d cSectors=%d\n",
436	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, __FUNCTION__, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
437	RTCritSectEnter(&pThis->CritSect);
438
439	int rc = VINF_SUCCESS;
440	if (pThis->fMediaPresent)
441	{
442	pThis->LCHSGeometry = *pLCHSGeometry;
443	}
444	else
445	{
446	AssertMsgFailed(("Invalid state! Not mounted!\n"));
447	rc = VERR_PDM_MEDIA_NOT_MOUNTED;
448	}
449
450	RTCritSectLeave(&pThis->CritSect);
451	return rc;
452	}
453
454
455	/** @copydoc PDMIBLOCKBIOS::pfnIsVisible */
456	static DECLCALLBACK(bool) drvHostBaseIsVisible(PPDMIBLOCKBIOS pInterface)
457	{
458	PDRVHOSTBASE pThis = PDMIBLOCKBIOS_2_DRVHOSTBASE(pInterface);
459	return pThis->fBiosVisible;
460	}
461
462
463	/** @copydoc PDMIBLOCKBIOS::pfnGetType */
464	static DECLCALLBACK(PDMBLOCKTYPE) drvHostBaseBiosGetType(PPDMIBLOCKBIOS pInterface)
465	{
466	PDRVHOSTBASE pThis = PDMIBLOCKBIOS_2_DRVHOSTBASE(pInterface);
467	return pThis->enmType;
468	}
469
470
471
472	/* -=-=-=-=- IMount -=-=-=-=- */
473
474	/** @copydoc PDMIMOUNT::pfnMount */
475	static DECLCALLBACK(int) drvHostBaseMount(PPDMIMOUNT pInterface, const char pszFilename, const char pszCoreDriver)
476	{
477	/* We're not mountable. */
478	AssertMsgFailed(("drvHostBaseMount: This shouldn't be called!\n"));
479	return VERR_PDM_MEDIA_MOUNTED;
480	}
481
482
483	/** @copydoc PDMIMOUNT::pfnUnmount */
484	static DECLCALLBACK(int) drvHostBaseUnmount(PPDMIMOUNT pInterface, bool fForce)
485	{
486	LogFlow(("drvHostBaseUnmount: returns VERR_NOT_SUPPORTED\n"));
487	return VERR_NOT_SUPPORTED;
488	}
489
490
491	/** @copydoc PDMIMOUNT::pfnIsMounted */
492	static DECLCALLBACK(bool) drvHostBaseIsMounted(PPDMIMOUNT pInterface)
493	{
494	PDRVHOSTBASE pThis = PDMIMOUNT_2_DRVHOSTBASE(pInterface);
495	RTCritSectEnter(&pThis->CritSect);
496
497	bool fRc = pThis->fMediaPresent;
498
499	RTCritSectLeave(&pThis->CritSect);
500	return fRc;
501	}
502
503
504	/** @copydoc PDMIMOUNT::pfnIsLocked */
505	static DECLCALLBACK(int) drvHostBaseLock(PPDMIMOUNT pInterface)
506	{
507	PDRVHOSTBASE pThis = PDMIMOUNT_2_DRVHOSTBASE(pInterface);
508	RTCritSectEnter(&pThis->CritSect);
509
510	int rc = VINF_SUCCESS;
511	if (!pThis->fLocked)
512	{
513	if (pThis->pfnDoLock)
514	rc = pThis->pfnDoLock(pThis, true);
515	if (RT_SUCCESS(rc))
516	pThis->fLocked = true;
517	}
518	else
519	LogFlow(("%s-%d: drvHostBaseLock: already locked\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance));
520
521	RTCritSectLeave(&pThis->CritSect);
522	LogFlow(("%s-%d: drvHostBaseLock: returns %Rrc\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, rc));
523	return rc;
524	}
525
526
527	/** @copydoc PDMIMOUNT::pfnIsLocked */
528	static DECLCALLBACK(int) drvHostBaseUnlock(PPDMIMOUNT pInterface)
529	{
530	PDRVHOSTBASE pThis = PDMIMOUNT_2_DRVHOSTBASE(pInterface);
531	RTCritSectEnter(&pThis->CritSect);
532
533	int rc = VINF_SUCCESS;
534	if (pThis->fLocked)
535	{
536	if (pThis->pfnDoLock)
537	rc = pThis->pfnDoLock(pThis, false);
538	if (RT_SUCCESS(rc))
539	pThis->fLocked = false;
540	}
541	else
542	LogFlow(("%s-%d: drvHostBaseUnlock: not locked\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance));
543
544	RTCritSectLeave(&pThis->CritSect);
545	LogFlow(("%s-%d: drvHostBaseUnlock: returns %Rrc\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, rc));
546	return rc;
547	}
548
549
550	/** @copydoc PDMIMOUNT::pfnIsLocked */
551	static DECLCALLBACK(bool) drvHostBaseIsLocked(PPDMIMOUNT pInterface)
552	{
553	PDRVHOSTBASE pThis = PDMIMOUNT_2_DRVHOSTBASE(pInterface);
554	RTCritSectEnter(&pThis->CritSect);
555
556	bool fRc = pThis->fLocked;
557
558	RTCritSectLeave(&pThis->CritSect);
559	return fRc;
560	}
561
562
563	/* -=-=-=-=- IBase -=-=-=-=- */
564
565	/** @copydoc PDMIBASE::pfnQueryInterface. */
566	static DECLCALLBACK(void *) drvHostBaseQueryInterface(PPDMIBASE pInterface, PDMINTERFACE enmInterface)
567	{
568	PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
569	PDRVHOSTBASE pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTBASE);
570	switch (enmInterface)
571	{
572	case PDMINTERFACE_BASE:
573	return &pDrvIns->IBase;
574	case PDMINTERFACE_BLOCK:
575	return &pThis->IBlock;
576	case PDMINTERFACE_BLOCK_BIOS:
577	return pThis->fBiosVisible ? &pThis->IBlockBios : NULL;
578	case PDMINTERFACE_MOUNT:
579	return &pThis->IMount;
580	default:
581	return NULL;
582	}
583	}
584
585
586	/* -=-=-=-=- poller thread -=-=-=-=- */
587
588	#ifdef RT_OS_DARWIN
589	/** The runloop input source name for the disk arbitration events. */
590	#define MY_RUN_LOOP_MODE CFSTR("drvHostBaseDA")
591
592	/**
593	* Gets the BSD Name (/dev/disc[0-9]+) for the service.
594	*
595	* This is done by recursing down the I/O registry until we hit upon an entry
596	* with a BSD Name. Usually we find it two levels down. (Further down under
597	* the IOCDPartitionScheme, the volume (slices) BSD Name is found. We don't
598	* seem to have to go this far fortunately.)
599	*
600	* @return VINF_SUCCESS if found, VERR_FILE_NOT_FOUND otherwise.
601	* @param Entry The current I/O registry entry reference.
602	* @param pszName Where to store the name. 128 bytes.
603	* @param cRecursions Number of recursions. This is used as an precation
604	* just to limit the depth and avoid blowing the stack
605	* should we hit a bug or something.
606	*/
607	static int drvHostBaseGetBSDName(io_registry_entry_t Entry, char *pszName, unsigned cRecursions)
608	{
609	int rc = VERR_FILE_NOT_FOUND;
610	io_iterator_t Children = 0;
611	kern_return_t krc = IORegistryEntryGetChildIterator(Entry, kIOServicePlane, &Children);
612	if (krc == KERN_SUCCESS)
613	{
614	io_object_t Child;
615	while ( rc == VERR_FILE_NOT_FOUND
616	&& (Child = IOIteratorNext(Children)) != 0)
617	{
618	CFStringRef BSDNameStrRef = (CFStringRef)IORegistryEntryCreateCFProperty(Child, CFSTR(kIOBSDNameKey), kCFAllocatorDefault, 0);
619	if (BSDNameStrRef)
620	{
621	if (CFStringGetCString(BSDNameStrRef, pszName, 128, kCFStringEncodingUTF8))
622	rc = VINF_SUCCESS;
623	else
624	AssertFailed();
625	CFRelease(BSDNameStrRef);
626	}
627	if (rc == VERR_FILE_NOT_FOUND && cRecursions < 10)
628	rc = drvHostBaseGetBSDName(Child, pszName, cRecursions + 1);
629	IOObjectRelease(Child);
630	}
631	IOObjectRelease(Children);
632	}
633	return rc;
634	}
635
636
637	/**
638	* Callback notifying us that the async DADiskClaim()/DADiskUnmount call has completed.
639	*
640	* @param DiskRef The disk that was attempted claimed / unmounted.
641	* @param DissenterRef NULL on success, contains details on failure.
642	* @param pvContext Pointer to the return code variable.
643	*/
644	static void drvHostBaseDADoneCallback(DADiskRef DiskRef, DADissenterRef DissenterRef, void *pvContext)
645	{
646	int prc = (int )pvContext;
647	if (!DissenterRef)
648	*prc = 0;
649	else
650	*prc = DADissenterGetStatus(DissenterRef) ? DADissenterGetStatus(DissenterRef) : -1;
651	CFRunLoopStop(CFRunLoopGetCurrent());
652	}
653
654
655	/**
656	* Obtain exclusive access to the DVD device, umount it if necessary.
657	*
658	* @return VBox status code.
659	* @param pThis The driver instance.
660	* @param DVDService The DVD service object.
661	*/
662	static int drvHostBaseObtainExclusiveAccess(PDRVHOSTBASE pThis, io_object_t DVDService)
663	{
664	PPDMDRVINS pDrvIns = pThis->pDrvIns; NOREF(pDrvIns);
665
666	for (unsigned iTry = 0;; iTry++)
667	{
668	IOReturn irc = (*pThis->ppScsiTaskDI)->ObtainExclusiveAccess(pThis->ppScsiTaskDI);
669	if (irc == kIOReturnSuccess)
670	{
671	/*
672	* This is a bit weird, but if we unmounted the DVD drive we also need to
673	* unlock it afterwards or the guest won't be able to eject it later on.
674	*/
675	if (pThis->pDADisk)
676	{
677	uint8_t abCmd[16] =
678	{
679	SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL, 0, 0, 0, false, 0,
680	0,0,0,0,0,0,0,0,0,0
681	};
682	DRVHostBaseScsiCmd(pThis, abCmd, 6, PDMBLOCKTXDIR_NONE, NULL, NULL, NULL, 0, 0);
683	}
684	return VINF_SUCCESS;
685	}
686	if (irc == kIOReturnExclusiveAccess)
687	return VERR_SHARING_VIOLATION; /* already used exclusivly. */
688	if (irc != kIOReturnBusy)
689	return VERR_GENERAL_FAILURE; /* not mounted */
690
691	/*
692	* Attempt to the unmount all volumes of the device.
693	* It seems we can can do this all in one go without having to enumerate the
694	* volumes (sessions) and deal with them one by one. This is very fortuitous
695	* as the disk arbitration API is a bit cumbersome to deal with.
696	*/
697	if (iTry > 2)
698	return VERR_DRIVE_LOCKED;
699	char szName[128];
700	int rc = drvHostBaseGetBSDName(DVDService, &szName[0], 0);
701	if (RT_SUCCESS(rc))
702	{
703	pThis->pDASession = DASessionCreate(kCFAllocatorDefault);
704	if (pThis->pDASession)
705	{
706	DASessionScheduleWithRunLoop(pThis->pDASession, CFRunLoopGetCurrent(), MY_RUN_LOOP_MODE);
707	pThis->pDADisk = DADiskCreateFromBSDName(kCFAllocatorDefault, pThis->pDASession, szName);
708	if (pThis->pDADisk)
709	{
710	/*
711	* Try claim the device.
712	*/
713	Log(("%s-%d: calling DADiskClaim on '%s'.\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, szName));
714	int rcDA = -2;
715	DADiskClaim(pThis->pDADisk, kDADiskClaimOptionDefault, NULL, NULL, drvHostBaseDADoneCallback, &rcDA);
716	SInt32 rc32 = CFRunLoopRunInMode(MY_RUN_LOOP_MODE, 120.0, FALSE);
717	AssertMsg(rc32 == kCFRunLoopRunStopped, ("rc32=%RI32 (%RX32)\n", rc32, rc32));
718	if ( rc32 == kCFRunLoopRunStopped
719	&& !rcDA)
720	{
721	/*
722	* Try unmount the device.
723	*/
724	Log(("%s-%d: calling DADiskUnmount on '%s'.\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, szName));
725	rcDA = -2;
726	DADiskUnmount(pThis->pDADisk, kDADiskUnmountOptionWhole, drvHostBaseDADoneCallback, &rcDA);
727	SInt32 rc32 = CFRunLoopRunInMode(MY_RUN_LOOP_MODE, 120.0, FALSE);
728	AssertMsg(rc32 == kCFRunLoopRunStopped, ("rc32=%RI32 (%RX32)\n", rc32, rc32));
729	if ( rc32 == kCFRunLoopRunStopped
730	&& !rcDA)
731	{
732	iTry = 99;
733	DASessionUnscheduleFromRunLoop(pThis->pDASession, CFRunLoopGetCurrent(), MY_RUN_LOOP_MODE);
734	Log(("%s-%d: unmount succeed - retrying.\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
735	continue;
736	}
737	Log(("%s-%d: umount => rc32=%d & rcDA=%#x\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, rc32, rcDA));
738
739	/* failed - cleanup */
740	DADiskUnclaim(pThis->pDADisk);
741	}
742	else
743	Log(("%s-%d: claim => rc32=%d & rcDA=%#x\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, rc32, rcDA));
744
745	CFRelease(pThis->pDADisk);
746	pThis->pDADisk = NULL;
747	}
748	else
749	Log(("%s-%d: failed to open disk '%s'!\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, szName));
750
751	DASessionUnscheduleFromRunLoop(pThis->pDASession, CFRunLoopGetCurrent(), MY_RUN_LOOP_MODE);
752	CFRelease(pThis->pDASession);
753	pThis->pDASession = NULL;
754	}
755	else
756	Log(("%s-%d: failed to create DA session!\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
757	}
758	RTThreadSleep(10);
759	}
760	}
761	#endif /* RT_OS_DARWIN */
762
763
764	#ifndef RT_OS_SOLARIS
765	/**
766	* Wrapper for open / RTFileOpen / IOKit.
767	*
768	* @remark The Darwin code must correspond exactly to the enumeration
769	* done in Main/darwin/iokit.c.
770	*/
771	static int drvHostBaseOpen(PDRVHOSTBASE pThis, PRTFILE pFileDevice, bool fReadOnly)
772	{
773	#ifdef RT_OS_DARWIN
774	/* Darwin is kind of special... */
775	Assert(!pFileDevice); NOREF(pFileDevice);
776	Assert(!pThis->cbBlock);
777	Assert(!pThis->MasterPort);
778	Assert(!pThis->ppMMCDI);
779	Assert(!pThis->ppScsiTaskDI);
780
781	/*
782	* Open the master port on the first invocation.
783	*/
784	kern_return_t krc = IOMasterPort(MACH_PORT_NULL, &pThis->MasterPort);
785	AssertReturn(krc == KERN_SUCCESS, VERR_GENERAL_FAILURE);
786
787	/*
788	* Create a matching dictionary for searching for DVD services in the IOKit.
789	*
790	* [If I understand this correctly, plain CDROMs doesn't show up as
791	* IODVDServices. Too keep things simple, we will only support DVDs
792	* until somebody complains about it and we get hardware to test it on.
793	* (Unless I'm much mistaken, there aren't any (orignal) intel macs with
794	* plain cdroms.)]
795	*/
796	CFMutableDictionaryRef RefMatchingDict = IOServiceMatching("IODVDServices");
797	AssertReturn(RefMatchingDict, NULL);
798
799	/*
800	* do the search and get a collection of keyboards.
801	*/
802	io_iterator_t DVDServices = NULL;
803	IOReturn irc = IOServiceGetMatchingServices(pThis->MasterPort, RefMatchingDict, &DVDServices);
804	AssertMsgReturn(irc == kIOReturnSuccess, ("irc=%d\n", irc), NULL);
805	RefMatchingDict = NULL; /* the reference is consumed by IOServiceGetMatchingServices. */
806
807	/*
808	* Enumerate the DVD drives (services).
809	* (This enumeration must be identical to the one performed in DrvHostBase.cpp.)
810	*/
811	int rc = VERR_FILE_NOT_FOUND;
812	unsigned i = 0;
813	io_object_t DVDService;
814	while ((DVDService = IOIteratorNext(DVDServices)) != 0)
815	{
816	/*
817	* Get the properties we use to identify the DVD drive.
818	*
819	* While there is a (weird 12 byte) GUID, it isn't persistent
820	* accross boots. So, we have to use a combination of the
821	* vendor name and product name properties with an optional
822	* sequence number for identification.
823	*/
824	CFMutableDictionaryRef PropsRef = 0;
825	kern_return_t krc = IORegistryEntryCreateCFProperties(DVDService, &PropsRef, kCFAllocatorDefault, kNilOptions);
826	if (krc == KERN_SUCCESS)
827	{
828	/* Get the Device Characteristics dictionary. */
829	CFDictionaryRef DevCharRef = (CFDictionaryRef)CFDictionaryGetValue(PropsRef, CFSTR(kIOPropertyDeviceCharacteristicsKey));
830	if (DevCharRef)
831	{
832	/* The vendor name. */
833	char szVendor[128];
834	char *pszVendor = &szVendor[0];
835	CFTypeRef ValueRef = CFDictionaryGetValue(DevCharRef, CFSTR(kIOPropertyVendorNameKey));
836	if ( ValueRef
837	&& CFGetTypeID(ValueRef) == CFStringGetTypeID()
838	&& CFStringGetCString((CFStringRef)ValueRef, szVendor, sizeof(szVendor), kCFStringEncodingUTF8))
839	pszVendor = RTStrStrip(szVendor);
840	else
841	*pszVendor = '\0';
842
843	/* The product name. */
844	char szProduct[128];
845	char *pszProduct = &szProduct[0];
846	ValueRef = CFDictionaryGetValue(DevCharRef, CFSTR(kIOPropertyProductNameKey));
847	if ( ValueRef
848	&& CFGetTypeID(ValueRef) == CFStringGetTypeID()
849	&& CFStringGetCString((CFStringRef)ValueRef, szProduct, sizeof(szProduct), kCFStringEncodingUTF8))
850	pszProduct = RTStrStrip(szProduct);
851	else
852	*pszProduct = '\0';
853
854	/* Construct the two names and compare thwm with the one we're searching for. */
855	char szName1[256 + 32];
856	char szName2[256 + 32];
857	if (pszVendor \|\| pszProduct)
858	{
859	if (pszVendor && pszProduct)
860	{
861	RTStrPrintf(szName1, sizeof(szName1), "%s %s", pszVendor, pszProduct);
862	RTStrPrintf(szName2, sizeof(szName2), "%s %s (#%u)", pszVendor, pszProduct, i);
863	}
864	else
865	{
866	strcpy(szName1, *pszVendor ? pszVendor : pszProduct);
867	RTStrPrintf(szName2, sizeof(szName2), "%s %s (#%u)", *pszVendor ? pszVendor : pszProduct, i);
868	}
869	}
870	else
871	{
872	RTStrPrintf(szName1, sizeof(szName1), "(#%u)", i);
873	strcpy(szName2, szName1);
874	}
875
876	if ( !strcmp(szName1, pThis->pszDeviceOpen)
877	\|\| !strcmp(szName2, pThis->pszDeviceOpen))
878	{
879	/*
880	* Found it! Now, get the client interface and stuff.
881	* Note that we could also query kIOSCSITaskDeviceUserClientTypeID here if the
882	* MMC client plugin is missing. For now we assume this won't be necessary.
883	*/
884	SInt32 Score = 0;
885	IOCFPlugInInterface **ppPlugInInterface = NULL;
886	krc = IOCreatePlugInInterfaceForService(DVDService, kIOMMCDeviceUserClientTypeID, kIOCFPlugInInterfaceID,
887	&ppPlugInInterface, &Score);
888	if (krc == KERN_SUCCESS)
889	{
890	HRESULT hrc = (*ppPlugInInterface)->QueryInterface(ppPlugInInterface,
891	CFUUIDGetUUIDBytes(kIOMMCDeviceInterfaceID),
892	(LPVOID *)&pThis->ppMMCDI);
893	(*ppPlugInInterface)->Release(ppPlugInInterface);
894	ppPlugInInterface = NULL;
895	if (hrc == S_OK)
896	{
897	pThis->ppScsiTaskDI = (*pThis->ppMMCDI)->GetSCSITaskDeviceInterface(pThis->ppMMCDI);
898	if (pThis->ppScsiTaskDI)
899	rc = VINF_SUCCESS;
900	else
901	{
902	LogRel(("GetSCSITaskDeviceInterface failed on '%s'\n", pThis->pszDeviceOpen));
903	rc = VERR_NOT_SUPPORTED;
904	(*pThis->ppMMCDI)->Release(pThis->ppMMCDI);
905	}
906	}
907	else
908	{
909	rc = VERR_GENERAL_FAILURE;//RTErrConvertFromDarwinCOM(krc);
910	pThis->ppMMCDI = NULL;
911	}
912	}
913	else /* Check for kIOSCSITaskDeviceUserClientTypeID? */
914	rc = VERR_GENERAL_FAILURE;//RTErrConvertFromDarwinKern(krc);
915
916	/* Obtain exclusive access to the device so we can send SCSI commands. */
917	if (RT_SUCCESS(rc))
918	rc = drvHostBaseObtainExclusiveAccess(pThis, DVDService);
919
920	/* Cleanup on failure. */
921	if (RT_FAILURE(rc))
922	{
923	if (pThis->ppScsiTaskDI)
924	{
925	(*pThis->ppScsiTaskDI)->Release(pThis->ppScsiTaskDI);
926	pThis->ppScsiTaskDI = NULL;
927	}
928	if (pThis->ppMMCDI)
929	{
930	(*pThis->ppMMCDI)->Release(pThis->ppMMCDI);
931	pThis->ppMMCDI = NULL;
932	}
933	}
934
935	IOObjectRelease(DVDService);
936	break;
937	}
938	}
939	CFRelease(PropsRef);
940	}
941	else
942	AssertMsgFailed(("krc=%#x\n", krc));
943
944	IOObjectRelease(DVDService);
945	i++;
946	}
947
948	IOObjectRelease(DVDServices);
949	return rc;
950
951	#elif defined(RT_OS_LINUX)
952	/** @todo we've got RTFILE_O_NON_BLOCK now. Change the code to use RTFileOpen. */
953	int FileDevice = open(pThis->pszDeviceOpen, (pThis->fReadOnlyConfig ? O_RDONLY : O_RDWR) \| O_NONBLOCK);
954	if (FileDevice < 0)
955	return RTErrConvertFromErrno(errno);
956	*pFileDevice = FileDevice;
957	return VINF_SUCCESS;
958
959	#elif defined(RT_OS_FREEBSD)
960	int rc = VINF_SUCCESS;
961	RTFILE FileDevice;
962
963	rc = RTFileOpen(&FileDevice, pThis->pszDeviceOpen, RTFILE_O_READWRITE \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE);
964	if (RT_FAILURE(rc))
965	return rc;
966
967	/*
968	* The current device handle can't passthrough SCSI commands.
969	* We have to get he passthrough device path and open this.
970	*/
971	union ccb DeviceCCB;
972	memset(&DeviceCCB, 0, sizeof(DeviceCCB));
973
974	DeviceCCB.ccb_h.func_code = XPT_GDEVLIST;
975	int rcBSD = ioctl(FileDevice, CAMGETPASSTHRU, &DeviceCCB);
976	if (!rcBSD)
977	{
978	char *pszPassthroughDevice = NULL;
979	rc = RTStrAPrintf(&pszPassthroughDevice, "/dev/%s%u",
980	DeviceCCB.cgdl.periph_name, DeviceCCB.cgdl.unit_number);
981	if (RT_SUCCESS(rc))
982	{
983	RTFILE PassthroughDevice;
984
985	rc = RTFileOpen(&PassthroughDevice, pszPassthroughDevice, RTFILE_O_READWRITE \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE);
986
987	RTStrFree(pszPassthroughDevice);
988
989	if (RT_SUCCESS(rc))
990	{
991	/* Get needed device parameters. */
992	union ccb DeviceCCB;
993
994	/*
995	* The device path, target id and lun id. Those are
996	* needed for the SCSI passthrough ioctl.
997	*/
998	memset(&DeviceCCB, 0, sizeof(DeviceCCB));
999	DeviceCCB.ccb_h.func_code = XPT_GDEVLIST;
1000
1001	rcBSD = ioctl(PassthroughDevice, CAMGETPASSTHRU, &DeviceCCB);
1002	if (!rcBSD)
1003	{
1004	if (DeviceCCB.cgdl.status != CAM_GDEVLIST_ERROR)
1005	{
1006	pThis->ScsiBus = DeviceCCB.ccb_h.path_id;
1007	pThis->ScsiTargetID = DeviceCCB.ccb_h.target_id;
1008	pThis->ScsiLunID = DeviceCCB.ccb_h.target_lun;
1009	*pFileDevice = PassthroughDevice;
1010	}
1011	else
1012	{
1013	/* The passthrough device wasn't found. */
1014	rc = VERR_NOT_FOUND;
1015	}
1016	}
1017	else
1018	rc = RTErrConvertFromErrno(errno);
1019
1020	if (RT_FAILURE(rc))
1021	RTFileClose(PassthroughDevice);
1022	}
1023	}
1024	}
1025	else
1026	rc = RTErrConvertFromErrno(errno);
1027
1028	RTFileClose(FileDevice);
1029	return rc;
1030	#else
1031	return RTFileOpen(pFileDevice, pThis->pszDeviceOpen,
1032	(fReadOnly ? RTFILE_O_READ : RTFILE_O_READWRITE) \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE);
1033	#endif
1034	}
1035
1036	#else /* RT_OS_SOLARIS */
1037
1038	/**
1039	* Solaris wrapper for RTFileOpen.
1040	*
1041	* Solaris has to deal with two filehandles, a block and a raw one. Rather than messing
1042	* with drvHostBaseOpen's function signature & body, having a seperate one is better.
1043	*
1044	* @returns VBox status code.
1045	*/
1046	static int drvHostBaseOpen(PDRVHOSTBASE pThis, PRTFILE pFileBlockDevice, PRTFILE pFileRawDevice, bool fReadOnly)
1047	{
1048	unsigned fFlags = (fReadOnly ? RTFILE_O_READ : RTFILE_O_READWRITE)
1049	\| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_NON_BLOCK;
1050	int rc = RTFileOpen(pFileBlockDevice, pThis->pszDeviceOpen, fFlags);
1051	if (RT_SUCCESS(rc))
1052	{
1053	rc = RTFileOpen(pFileRawDevice, pThis->pszRawDeviceOpen, fFlags);
1054	if (RT_SUCCESS(rc))
1055	return rc;
1056
1057	LogRel(("DVD: failed to open device %s rc=%Rrc\n", pThis->pszRawDeviceOpen, rc));
1058	RTFileClose(*pFileBlockDevice);
1059	}
1060	else
1061	LogRel(("DVD: failed to open device %s rc=%Rrc\n", pThis->pszDeviceOpen, rc));
1062	return rc;
1063	}
1064	#endif /* RT_OS_SOLARIS */
1065
1066
1067	/**
1068	* (Re)opens the device.
1069	*
1070	* This is used to open the device during construction, but it's also used to re-open
1071	* the device when a media is inserted. This re-open will kill off any cached data
1072	* that Linux for some peculiar reason thinks should survive a media change...
1073	*
1074	* @returns VBOX status code.
1075	* @param pThis Instance data.
1076	*/
1077	static int drvHostBaseReopen(PDRVHOSTBASE pThis)
1078	{
1079	#ifndef RT_OS_DARWIN /* Only one open for darwin. */
1080	LogFlow(("%s-%d: drvHostBaseReopen: '%s'\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->pszDeviceOpen));
1081
1082	RTFILE FileDevice;
1083	#ifdef RT_OS_SOLARIS
1084	if (pThis->FileRawDevice != NIL_RTFILE)
1085	{
1086	RTFileClose(pThis->FileRawDevice);
1087	pThis->FileRawDevice = NIL_RTFILE;
1088	}
1089	if (pThis->FileDevice != NIL_RTFILE)
1090	{
1091	RTFileClose(pThis->FileDevice);
1092	pThis->FileDevice = NIL_RTFILE;
1093	}
1094	RTFILE FileRawDevice;
1095	int rc = drvHostBaseOpen(pThis, &FileDevice, &FileRawDevice, pThis->fReadOnlyConfig);
1096	#else
1097	int rc = drvHostBaseOpen(pThis, &FileDevice, pThis->fReadOnlyConfig);
1098	#endif
1099	if (RT_FAILURE(rc))
1100	{
1101	if (!pThis->fReadOnlyConfig)
1102	{
1103	LogFlow(("%s-%d: drvHostBaseReopen: '%s' - retry readonly (%Rrc)\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->pszDeviceOpen, rc));
1104	#ifdef RT_OS_SOLARIS
1105	rc = drvHostBaseOpen(pThis, &FileDevice, &FileRawDevice, false);
1106	#else
1107	rc = drvHostBaseOpen(pThis, &FileDevice, false);
1108	#endif
1109	}
1110	if (RT_FAILURE(rc))
1111	{
1112	LogFlow(("%s-%d: failed to open device '%s', rc=%Rrc\n",
1113	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->pszDevice, rc));
1114	return rc;
1115	}
1116	pThis->fReadOnly = true;
1117	}
1118	else
1119	pThis->fReadOnly = pThis->fReadOnlyConfig;
1120
1121	#ifdef RT_OS_SOLARIS
1122	if (pThis->FileRawDevice != NIL_RTFILE)
1123	RTFileClose(pThis->FileRawDevice);
1124	pThis->FileRawDevice = FileRawDevice;
1125	#endif
1126
1127	if (pThis->FileDevice != NIL_RTFILE)
1128	RTFileClose(pThis->FileDevice);
1129	pThis->FileDevice = FileDevice;
1130	#endif /* !RT_OS_DARWIN */
1131	return VINF_SUCCESS;
1132	}
1133
1134
1135	/**
1136	* Queries the media size.
1137	*
1138	* @returns VBox status code.
1139	* @param pThis Pointer to the instance data.
1140	* @param pcb Where to store the media size in bytes.
1141	*/
1142	static int drvHostBaseGetMediaSize(PDRVHOSTBASE pThis, uint64_t *pcb)
1143	{
1144	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_FREEBSD)
1145	/*
1146	* Try a READ_CAPACITY command...
1147	*/
1148	struct
1149	{
1150	uint32_t cBlocks;
1151	uint32_t cbBlock;
1152	} Buf = {0, 0};
1153	uint32_t cbBuf = sizeof(Buf);
1154	uint8_t abCmd[16] =
1155	{
1156	SCSI_READ_CAPACITY, 0, 0, 0, 0, 0, 0,
1157	0,0,0,0,0,0,0,0,0
1158	};
1159	int rc = DRVHostBaseScsiCmd(pThis, abCmd, 6, PDMBLOCKTXDIR_FROM_DEVICE, &Buf, &cbBuf, NULL, 0, 0);
1160	if (RT_SUCCESS(rc))
1161	{
1162	Assert(cbBuf == sizeof(Buf));
1163	Buf.cBlocks = RT_BE2H_U32(Buf.cBlocks);
1164	Buf.cbBlock = RT_BE2H_U32(Buf.cbBlock);
1165	//if (Buf.cbBlock > 2048) /* everyone else is doing this... check if it needed/right.*/
1166	// Buf.cbBlock = 2048;
1167	pThis->cbBlock = Buf.cbBlock;
1168
1169	pcb = (uint64_t)Buf.cBlocks Buf.cbBlock;
1170	}
1171	return rc;
1172
1173	#elif defined(RT_OS_SOLARIS)
1174	/*
1175	* Sun docs suggests using DKIOCGGEOM instead of DKIOCGMEDIAINFO, but
1176	* Sun themselves use DKIOCGMEDIAINFO for DVDs/CDs, and use DKIOCGGEOM
1177	* for secondary storage devices.
1178	*/
1179	struct dk_minfo MediaInfo;
1180	if (ioctl(pThis->FileRawDevice, DKIOCGMEDIAINFO, &MediaInfo) == 0)
1181	{
1182	pcb = MediaInfo.dki_capacity (uint64_t)MediaInfo.dki_lbsize;
1183	return VINF_SUCCESS;
1184	}
1185	return RTFileSeek(pThis->FileDevice, 0, RTFILE_SEEK_END, pcb);
1186
1187	#elif defined(RT_OS_WINDOWS)
1188	/* use NT api, retry a few times if the media is being verified. */
1189	IO_STATUS_BLOCK IoStatusBlock = {0};
1190	FILE_FS_SIZE_INFORMATION FsSize= {0};
1191	NTSTATUS rcNt = NtQueryVolumeInformationFile((HANDLE)pThis->FileDevice, &IoStatusBlock,
1192	&FsSize, sizeof(FsSize), FileFsSizeInformation);
1193	int cRetries = 5;
1194	while (rcNt == STATUS_VERIFY_REQUIRED && cRetries-- > 0)
1195	{
1196	RTThreadSleep(10);
1197	rcNt = NtQueryVolumeInformationFile((HANDLE)pThis->FileDevice, &IoStatusBlock,
1198	&FsSize, sizeof(FsSize), FileFsSizeInformation);
1199	}
1200	if (rcNt >= 0)
1201	{
1202	pcb = FsSize.TotalAllocationUnits.QuadPart FsSize.BytesPerSector;
1203	return VINF_SUCCESS;
1204	}
1205
1206	/* convert nt status code to VBox status code. */
1207	/** @todo Make convertion function!. */
1208	int rc = VERR_GENERAL_FAILURE;
1209	switch (rcNt)
1210	{
1211	case STATUS_NO_MEDIA_IN_DEVICE: rc = VERR_MEDIA_NOT_PRESENT; break;
1212	case STATUS_VERIFY_REQUIRED: rc = VERR_TRY_AGAIN; break;
1213	}
1214	LogFlow(("drvHostBaseGetMediaSize: NtQueryVolumeInformationFile -> %#lx\n", rcNt, rc));
1215	return rc;
1216	#else
1217	return RTFileSeek(pThis->FileDevice, 0, RTFILE_SEEK_END, pcb);
1218	#endif
1219	}
1220
1221
1222	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_FREEBSD)
1223	/**
1224	* Execute a SCSI command.
1225	*
1226	* @param pThis The instance data.
1227	* @param pbCmd Pointer to the SCSI command.
1228	* @param cbCmd The size of the SCSI command.
1229	* @param enmTxDir The transfer direction.
1230	* @param pvBuf The buffer. Can be NULL if enmTxDir is PDMBLOCKTXDIR_NONE.
1231	* @param pcbBuf Where to get the buffer size from and put the actual transfer size. Can be NULL.
1232	* @param pbSense Where to put the sense data. Can be NULL.
1233	* @param cbSense Size of the sense data buffer.
1234	* @param cTimeoutMillies The timeout. 0 mean the default timeout.
1235	*
1236	* @returns VINF_SUCCESS on success (no sense code).
1237	* @returns VERR_UNRESOLVED_ERROR if sense code is present.
1238	* @returns Some other VBox status code on failures without sense code.
1239	*
1240	* @todo Fix VERR_UNRESOLVED_ERROR abuse.
1241	*/
1242	DECLCALLBACK(int) DRVHostBaseScsiCmd(PDRVHOSTBASE pThis, const uint8_t *pbCmd, size_t cbCmd, PDMBLOCKTXDIR enmTxDir,
1243	void pvBuf, uint32_t pcbBuf, uint8_t *pbSense, size_t cbSense, uint32_t cTimeoutMillies)
1244	{
1245	/*
1246	* Minimal input validation.
1247	*/
1248	Assert(enmTxDir == PDMBLOCKTXDIR_NONE \|\| enmTxDir == PDMBLOCKTXDIR_FROM_DEVICE \|\| enmTxDir == PDMBLOCKTXDIR_TO_DEVICE);
1249	Assert(!pvBuf \|\| pcbBuf);
1250	Assert(pvBuf \|\| enmTxDir == PDMBLOCKTXDIR_NONE);
1251	Assert(pbSense \|\| !cbSense);
1252	AssertPtr(pbCmd);
1253	Assert(cbCmd <= 16 && cbCmd >= 1);
1254	const uint32_t cbBuf = pcbBuf ? *pcbBuf : 0;
1255	if (pcbBuf)
1256	*pcbBuf = 0;
1257
1258	# ifdef RT_OS_DARWIN
1259	Assert(pThis->ppScsiTaskDI);
1260
1261	int rc = VERR_GENERAL_FAILURE;
1262	SCSITaskInterface *ppScsiTaskI = (pThis->ppScsiTaskDI)->CreateSCSITask(pThis->ppScsiTaskDI);
1263	if (!ppScsiTaskI)
1264	return VERR_NO_MEMORY;
1265	do
1266	{
1267	/* Setup the scsi command. */
1268	SCSICommandDescriptorBlock cdb = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
1269	memcpy(&cdb[0], pbCmd, cbCmd);
1270	IOReturn irc = (*ppScsiTaskI)->SetCommandDescriptorBlock(ppScsiTaskI, cdb, cbCmd);
1271	AssertBreak(irc == kIOReturnSuccess);
1272
1273	/* Setup the buffer. */
1274	if (enmTxDir == PDMBLOCKTXDIR_NONE)
1275	irc = (*ppScsiTaskI)->SetScatterGatherEntries(ppScsiTaskI, NULL, 0, 0, kSCSIDataTransfer_NoDataTransfer);
1276	else
1277	{
1278	IOVirtualRange Range = { (IOVirtualAddress)pvBuf, cbBuf };
1279	irc = (*ppScsiTaskI)->SetScatterGatherEntries(ppScsiTaskI, &Range, 1, cbBuf,
1280	enmTxDir == PDMBLOCKTXDIR_FROM_DEVICE
1281	? kSCSIDataTransfer_FromTargetToInitiator
1282	: kSCSIDataTransfer_FromInitiatorToTarget);
1283	}
1284	AssertBreak(irc == kIOReturnSuccess);
1285
1286	/* Set the timeout. */
1287	irc = (ppScsiTaskI)->SetTimeoutDuration(ppScsiTaskI, cTimeoutMillies ? cTimeoutMillies : 30000 /ms*/);
1288	AssertBreak(irc == kIOReturnSuccess);
1289
1290	/* Execute the command and get the response. */
1291	SCSI_Sense_Data SenseData = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
1292	SCSIServiceResponse ServiceResponse = kSCSIServiceResponse_Request_In_Process;
1293	SCSITaskStatus TaskStatus = kSCSITaskStatus_GOOD;
1294	UInt64 cbReturned = 0;
1295	irc = (*ppScsiTaskI)->ExecuteTaskSync(ppScsiTaskI, &SenseData, &TaskStatus, &cbReturned);
1296	AssertBreak(irc == kIOReturnSuccess);
1297	if (pcbBuf)
1298	*pcbBuf = (int32_t)cbReturned;
1299
1300	irc = (*ppScsiTaskI)->GetSCSIServiceResponse(ppScsiTaskI, &ServiceResponse);
1301	AssertBreak(irc == kIOReturnSuccess);
1302	AssertBreak(ServiceResponse == kSCSIServiceResponse_TASK_COMPLETE);
1303
1304	if (TaskStatus == kSCSITaskStatus_GOOD)
1305	rc = VINF_SUCCESS;
1306	else if ( TaskStatus == kSCSITaskStatus_CHECK_CONDITION
1307	&& pbSense)
1308	{
1309	memset(pbSense, 0, cbSense); /* lazy */
1310	memcpy(pbSense, &SenseData, RT_MIN(sizeof(SenseData), cbSense));
1311	rc = VERR_UNRESOLVED_ERROR;
1312	}
1313	/** @todo convert sense codes when caller doesn't wish to do this himself. */
1314	/*else if ( TaskStatus == kSCSITaskStatus_CHECK_CONDITION
1315	&& SenseData.ADDITIONAL_SENSE_CODE == 0x3A)
1316	rc = VERR_MEDIA_NOT_PRESENT; */
1317	else
1318	{
1319	rc = enmTxDir == PDMBLOCKTXDIR_NONE
1320	? VERR_DEV_IO_ERROR
1321	: enmTxDir == PDMBLOCKTXDIR_FROM_DEVICE
1322	? VERR_READ_ERROR
1323	: VERR_WRITE_ERROR;
1324	if (pThis->cLogRelErrors++ < 10)
1325	LogRel(("DVD scsi error: cmd={%.*Rhxs} TaskStatus=%#x key=%#x ASC=%#x ASCQ=%#x (%Rrc)\n",
1326	cbCmd, pbCmd, TaskStatus, SenseData.SENSE_KEY, SenseData.ADDITIONAL_SENSE_CODE,
1327	SenseData.ADDITIONAL_SENSE_CODE_QUALIFIER, rc));
1328	}
1329	} while (0);
1330
1331	(*ppScsiTaskI)->Release(ppScsiTaskI);
1332
1333	# elif defined(RT_OS_FREEBSD)
1334	int rc = VINF_SUCCESS;
1335	int rcBSD = 0;
1336	union ccb DeviceCCB;
1337	union ccb *pDeviceCCB = &DeviceCCB;
1338	u_int32_t fFlags;
1339
1340	memset(pDeviceCCB, 0, sizeof(DeviceCCB));
1341	pDeviceCCB->ccb_h.path_id = pThis->ScsiBus;
1342	pDeviceCCB->ccb_h.target_id = pThis->ScsiTargetID;
1343	pDeviceCCB->ccb_h.target_lun = pThis->ScsiLunID;
1344
1345	/* The SCSI INQUIRY command can't be passed through directly. */
1346	if (pbCmd[0] == SCSI_INQUIRY)
1347	{
1348	pDeviceCCB->ccb_h.func_code = XPT_GDEV_TYPE;
1349
1350	rcBSD = ioctl(pThis->FileDevice, CAMIOCOMMAND, pDeviceCCB);
1351	if (!rcBSD)
1352	{
1353	uint32_t cbCopy = cbBuf < sizeof(struct scsi_inquiry_data)
1354	? cbBuf
1355	: sizeof(struct scsi_inquiry_data);;
1356	memcpy(pvBuf, &pDeviceCCB->cgd.inq_data, cbCopy);
1357	memset(pbSense, 0, cbSense);
1358
1359	if (pcbBuf)
1360	*pcbBuf = cbCopy;
1361	}
1362	else
1363	rc = RTErrConvertFromErrno(errno);
1364	}
1365	else
1366	{
1367	/* Copy the CDB. */
1368	memcpy(&pDeviceCCB->csio.cdb_io.cdb_bytes, pbCmd, cbCmd);
1369
1370	/* Set direction. */
1371	if (enmTxDir == PDMBLOCKTXDIR_NONE)
1372	fFlags = CAM_DIR_NONE;
1373	else if (enmTxDir == PDMBLOCKTXDIR_FROM_DEVICE)
1374	fFlags = CAM_DIR_IN;
1375	else
1376	fFlags = CAM_DIR_OUT;
1377
1378	fFlags \|= CAM_DEV_QFRZDIS;
1379
1380	cam_fill_csio(&pDeviceCCB->csio, 1, NULL, fFlags, MSG_SIMPLE_Q_TAG,
1381	(u_int8_t *)pvBuf, cbBuf, cbSense, cbCmd,
1382	cTimeoutMillies ? cTimeoutMillies : 30000/* timeout */);
1383
1384	/* Send command */
1385	rcBSD = ioctl(pThis->FileDevice, CAMIOCOMMAND, pDeviceCCB);
1386	if (!rcBSD)
1387	{
1388	switch (pDeviceCCB->ccb_h.status & CAM_STATUS_MASK)
1389	{
1390	case CAM_REQ_CMP:
1391	rc = VINF_SUCCESS;
1392	break;
1393	case CAM_SEL_TIMEOUT:
1394	rc = VERR_DEV_IO_ERROR;
1395	break;
1396	case CAM_CMD_TIMEOUT:
1397	rc = VERR_TIMEOUT;
1398	break;
1399	default:
1400	rc = VERR_DEV_IO_ERROR;
1401	}
1402
1403	if (pcbBuf)
1404	*pcbBuf = cbBuf - pDeviceCCB->csio.resid;
1405
1406	if (pbSense)
1407	memcpy(pbSense, &pDeviceCCB->csio.sense_data,
1408	cbSense - pDeviceCCB->csio.sense_resid);
1409	}
1410	else
1411	rc = RTErrConvertFromErrno(errno);
1412	}
1413	# endif
1414
1415	return rc;
1416	}
1417	#endif
1418
1419
1420	/**
1421	* Media present.
1422	* Query the size and notify the above driver / device.
1423	*
1424	* @param pThis The instance data.
1425	*/
1426	int DRVHostBaseMediaPresent(PDRVHOSTBASE pThis)
1427	{
1428	/*
1429	* Open the drive.
1430	*/
1431	int rc = drvHostBaseReopen(pThis);
1432	if (RT_FAILURE(rc))
1433	return rc;
1434
1435	/*
1436	* Determine the size.
1437	*/
1438	uint64_t cb;
1439	rc = pThis->pfnGetMediaSize(pThis, &cb);
1440	if (RT_FAILURE(rc))
1441	{
1442	LogFlow(("%s-%d: failed to figure media size of %s, rc=%Rrc\n",
1443	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->pszDevice, rc));
1444	return rc;
1445	}
1446
1447	/*
1448	* Update the data and inform the unit.
1449	*/
1450	pThis->cbSize = cb;
1451	pThis->fMediaPresent = true;
1452	if (pThis->pDrvMountNotify)
1453	pThis->pDrvMountNotify->pfnMountNotify(pThis->pDrvMountNotify);
1454	LogFlow(("%s-%d: drvHostBaseMediaPresent: cbSize=%lld (%#llx)\n",
1455	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->cbSize, pThis->cbSize));
1456	return VINF_SUCCESS;
1457	}
1458
1459
1460	/**
1461	* Media no longer present.
1462	* @param pThis The instance data.
1463	*/
1464	void DRVHostBaseMediaNotPresent(PDRVHOSTBASE pThis)
1465	{
1466	pThis->fMediaPresent = false;
1467	pThis->fLocked = false;
1468	pThis->PCHSGeometry.cCylinders = 0;
1469	pThis->PCHSGeometry.cHeads = 0;
1470	pThis->PCHSGeometry.cSectors = 0;
1471	pThis->LCHSGeometry.cCylinders = 0;
1472	pThis->LCHSGeometry.cHeads = 0;
1473	pThis->LCHSGeometry.cSectors = 0;
1474	if (pThis->pDrvMountNotify)
1475	pThis->pDrvMountNotify->pfnUnmountNotify(pThis->pDrvMountNotify);
1476	}
1477
1478
1479	#ifdef RT_OS_WINDOWS
1480
1481	/**
1482	* Window procedure for the invisible window used to catch the WM_DEVICECHANGE broadcasts.
1483	*/
1484	static LRESULT CALLBACK DeviceChangeWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1485	{
1486	Log2(("DeviceChangeWindowProc: hwnd=%08x uMsg=%08x\n", hwnd, uMsg));
1487	if (uMsg == WM_DESTROY)
1488	{
1489	PDRVHOSTBASE pThis = (PDRVHOSTBASE)GetWindowLong(hwnd, GWLP_USERDATA);
1490	if (pThis)
1491	ASMAtomicXchgSize(&pThis->hwndDeviceChange, NULL);
1492	PostQuitMessage(0);
1493	}
1494
1495	if (uMsg != WM_DEVICECHANGE)
1496	return DefWindowProc(hwnd, uMsg, wParam, lParam);
1497
1498	PDEV_BROADCAST_HDR lpdb = (PDEV_BROADCAST_HDR)lParam;
1499	PDRVHOSTBASE pThis = (PDRVHOSTBASE)GetWindowLongPtr(hwnd, GWLP_USERDATA);
1500	Assert(pThis);
1501	if (pThis == NULL)
1502	return 0;
1503
1504	switch (wParam)
1505	{
1506	case DBT_DEVICEARRIVAL:
1507	case DBT_DEVICEREMOVECOMPLETE:
1508	// Check whether a CD or DVD was inserted into or removed from a drive.
1509	if (lpdb->dbch_devicetype == DBT_DEVTYP_VOLUME)
1510	{
1511	PDEV_BROADCAST_VOLUME lpdbv = (PDEV_BROADCAST_VOLUME)lpdb;
1512	if ( (lpdbv->dbcv_flags & DBTF_MEDIA)
1513	&& (pThis->fUnitMask & lpdbv->dbcv_unitmask))
1514	{
1515	RTCritSectEnter(&pThis->CritSect);
1516	if (wParam == DBT_DEVICEARRIVAL)
1517	{
1518	int cRetries = 10;
1519	int rc = DRVHostBaseMediaPresent(pThis);
1520	while (RT_FAILURE(rc) && cRetries-- > 0)
1521	{
1522	RTThreadSleep(50);
1523	rc = DRVHostBaseMediaPresent(pThis);
1524	}
1525	}
1526	else
1527	DRVHostBaseMediaNotPresent(pThis);
1528	RTCritSectLeave(&pThis->CritSect);
1529	}
1530	}
1531	break;
1532	}
1533	return TRUE;
1534	}
1535
1536	#endif /* RT_OS_WINDOWS */
1537
1538
1539	/**
1540	* This thread will periodically poll the device for media presence.
1541	*
1542	* @returns Ignored.
1543	* @param ThreadSelf Handle of this thread. Ignored.
1544	* @param pvUser Pointer to the driver instance structure.
1545	*/
1546	static DECLCALLBACK(int) drvHostBaseMediaThread(RTTHREAD ThreadSelf, void *pvUser)
1547	{
1548	PDRVHOSTBASE pThis = (PDRVHOSTBASE)pvUser;
1549	LogFlow(("%s-%d: drvHostBaseMediaThread: ThreadSelf=%p pvUser=%p\n",
1550	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, ThreadSelf, pvUser));
1551	#ifdef RT_OS_WINDOWS
1552	static WNDCLASS s_classDeviceChange = {0};
1553	static ATOM s_hAtomDeviceChange = 0;
1554
1555	/*
1556	* Register custom window class.
1557	*/
1558	if (s_hAtomDeviceChange == 0)
1559	{
1560	memset(&s_classDeviceChange, 0, sizeof(s_classDeviceChange));
1561	s_classDeviceChange.lpfnWndProc = DeviceChangeWindowProc;
1562	s_classDeviceChange.lpszClassName = "VBOX_DeviceChangeClass";
1563	s_classDeviceChange.hInstance = GetModuleHandle("VBOXDD.DLL");
1564	Assert(s_classDeviceChange.hInstance);
1565	s_hAtomDeviceChange = RegisterClassA(&s_classDeviceChange);
1566	Assert(s_hAtomDeviceChange);
1567	}
1568
1569	/*
1570	* Create Window w/ the pThis as user data.
1571	*/
1572	HWND hwnd = CreateWindow((LPCTSTR)s_hAtomDeviceChange, "", WS_POPUP, 0, 0, 0, 0, 0, 0, s_classDeviceChange.hInstance, 0);
1573	AssertMsg(hwnd, ("CreateWindow failed with %d\n", GetLastError()));
1574	SetWindowLongPtr(hwnd, GWLP_USERDATA, (LONG_PTR)pThis);
1575
1576	/*
1577	* Signal the waiting EMT thread that everything went fine.
1578	*/
1579	ASMAtomicXchgSize(&pThis->hwndDeviceChange, hwnd);
1580	RTThreadUserSignal(ThreadSelf);
1581	if (!hwnd)
1582	{
1583	LogFlow(("%s-%d: drvHostBaseMediaThread: returns VERR_GENERAL_FAILURE\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance));
1584	return VERR_GENERAL_FAILURE;
1585	}
1586	LogFlow(("%s-%d: drvHostBaseMediaThread: Created hwndDeviceChange=%p\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, hwnd));
1587
1588	/*
1589	* Message pump.
1590	*/
1591	MSG Msg;
1592	BOOL fRet;
1593	while ((fRet = GetMessage(&Msg, NULL, 0, 0)) != FALSE)
1594	{
1595	if (fRet != -1)
1596	{
1597	TranslateMessage(&Msg);
1598	DispatchMessage(&Msg);
1599	}
1600	//else: handle the error and possibly exit
1601	}
1602	Assert(!pThis->hwndDeviceChange);
1603
1604	#else /* !RT_OS_WINDOWS */
1605	bool fFirst = true;
1606	int cRetries = 10;
1607	while (!pThis->fShutdownPoller)
1608	{
1609	/*
1610	* Perform the polling (unless we've run out of 50ms retries).
1611	*/
1612	if ( pThis->pfnPoll
1613	&& cRetries-- > 0)
1614	{
1615
1616	int rc = pThis->pfnPoll(pThis);
1617	if (RT_FAILURE(rc))
1618	{
1619	RTSemEventWait(pThis->EventPoller, 50);
1620	continue;
1621	}
1622	}
1623
1624	/*
1625	* Signal EMT after the first go.
1626	*/
1627	if (fFirst)
1628	{
1629	RTThreadUserSignal(ThreadSelf);
1630	fFirst = false;
1631	}
1632
1633	/*
1634	* Sleep.
1635	*/
1636	int rc = RTSemEventWait(pThis->EventPoller, pThis->cMilliesPoller);
1637	if ( RT_FAILURE(rc)
1638	&& rc != VERR_TIMEOUT)
1639	{
1640	AssertMsgFailed(("rc=%Rrc\n", rc));
1641	pThis->ThreadPoller = NIL_RTTHREAD;
1642	LogFlow(("drvHostBaseMediaThread: returns %Rrc\n", rc));
1643	return rc;
1644	}
1645	cRetries = 10;
1646	}
1647
1648	#endif /* !RT_OS_WINDOWS */
1649
1650	/* (Don't clear the thread handle here, the destructor thread is using it to wait.) */
1651	LogFlow(("%s-%d: drvHostBaseMediaThread: returns VINF_SUCCESS\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance));
1652	return VINF_SUCCESS;
1653	}
1654
1655	/* -=-=-=-=- driver interface -=-=-=-=- */
1656
1657
1658	/**
1659	* Done state load operation.
1660	*
1661	* @returns VBox load code.
1662	* @param pDrvIns Driver instance of the driver which registered the data unit.
1663	* @param pSSM SSM operation handle.
1664	*/
1665	static DECLCALLBACK(int) drvHostBaseLoadDone(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM)
1666	{
1667	PDRVHOSTBASE pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTBASE);
1668	LogFlow(("%s-%d: drvHostBaseMediaThread:\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance));
1669	RTCritSectEnter(&pThis->CritSect);
1670
1671	/*
1672	* Tell the device/driver above us that the media status is uncertain.
1673	*/
1674	if (pThis->pDrvMountNotify)
1675	{
1676	pThis->pDrvMountNotify->pfnUnmountNotify(pThis->pDrvMountNotify);
1677	if (pThis->fMediaPresent)
1678	pThis->pDrvMountNotify->pfnMountNotify(pThis->pDrvMountNotify);
1679	}
1680
1681	RTCritSectLeave(&pThis->CritSect);
1682	return VINF_SUCCESS;
1683	}
1684
1685
1686	/** @copydoc FNPDMDRVDESTRUCT */
1687	DECLCALLBACK(void) DRVHostBaseDestruct(PPDMDRVINS pDrvIns)
1688	{
1689	PDRVHOSTBASE pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTBASE);
1690	LogFlow(("%s-%d: drvHostBaseDestruct: iInstance=%d\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, pDrvIns->iInstance));
1691
1692	/*
1693	* Terminate the thread.
1694	*/
1695	if (pThis->ThreadPoller != NIL_RTTHREAD)
1696	{
1697	pThis->fShutdownPoller = true;
1698	int rc;
1699	int cTimes = 50;
1700	do
1701	{
1702	#ifdef RT_OS_WINDOWS
1703	if (pThis->hwndDeviceChange)
1704	PostMessage(pThis->hwndDeviceChange, WM_CLOSE, 0, 0); /* default win proc will destroy the window */
1705	#else
1706	RTSemEventSignal(pThis->EventPoller);
1707	#endif
1708	rc = RTThreadWait(pThis->ThreadPoller, 100, NULL);
1709	} while (cTimes-- > 0 && rc == VERR_TIMEOUT);
1710
1711	if (!rc)
1712	pThis->ThreadPoller = NIL_RTTHREAD;
1713	}
1714
1715	/*
1716	* Unlock the drive if we've locked it or we're in passthru mode.
1717	*/
1718	#ifdef RT_OS_DARWIN
1719	if ( ( pThis->fLocked
1720	\|\| pThis->IBlock.pfnSendCmd)
1721	&& pThis->ppScsiTaskDI
1722	#else /** @todo Check if the other guys can mix pfnDoLock with scsi passthru.
1723	* (We're currently not unlocking the device after use. See todo in DevATA.cpp.) */
1724	if ( pThis->fLocked
1725	&& pThis->FileDevice != NIL_RTFILE
1726	#endif
1727	&& pThis->pfnDoLock)
1728	{
1729	int rc = pThis->pfnDoLock(pThis, false);
1730	if (RT_SUCCESS(rc))
1731	pThis->fLocked = false;
1732	}
1733
1734	/*
1735	* Cleanup the other resources.
1736	*/
1737	#ifdef RT_OS_WINDOWS
1738	if (pThis->hwndDeviceChange)
1739	{
1740	if (SetWindowLongPtr(pThis->hwndDeviceChange, GWLP_USERDATA, 0) == (LONG_PTR)pThis)
1741	PostMessage(pThis->hwndDeviceChange, WM_CLOSE, 0, 0); /* default win proc will destroy the window */
1742	pThis->hwndDeviceChange = NULL;
1743	}
1744	#else
1745	if (pThis->EventPoller != NULL)
1746	{
1747	RTSemEventDestroy(pThis->EventPoller);
1748	pThis->EventPoller = NULL;
1749	}
1750	#endif
1751
1752	#ifdef RT_OS_DARWIN
1753	/*
1754	* The unclaiming doesn't seem to mean much, the DVD is actaully
1755	* remounted when we release exclusive access. I'm not quite sure
1756	* if I should put the unclaim first or not...
1757	*
1758	* Anyway, that it's automatically remounted very good news for us,
1759	* because that means we don't have to mess with that ourselves. Of
1760	* course there is the unlikely scenario that we've succeeded in claiming
1761	* and umount the DVD but somehow failed to gain exclusive scsi access...
1762	*/
1763	if (pThis->ppScsiTaskDI)
1764	{
1765	LogFlow(("%s-%d: releasing exclusive scsi access!\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
1766	(*pThis->ppScsiTaskDI)->ReleaseExclusiveAccess(pThis->ppScsiTaskDI);
1767	(*pThis->ppScsiTaskDI)->Release(pThis->ppScsiTaskDI);
1768	pThis->ppScsiTaskDI = NULL;
1769	}
1770	if (pThis->pDADisk)
1771	{
1772	LogFlow(("%s-%d: unclaiming the disk!\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
1773	DADiskUnclaim(pThis->pDADisk);
1774	CFRelease(pThis->pDADisk);
1775	pThis->pDADisk = NULL;
1776	}
1777	if (pThis->ppMMCDI)
1778	{
1779	LogFlow(("%s-%d: releasing the MMC object!\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
1780	(*pThis->ppMMCDI)->Release(pThis->ppMMCDI);
1781	pThis->ppMMCDI = NULL;
1782	}
1783	if (pThis->MasterPort)
1784	{
1785	mach_port_deallocate(mach_task_self(), pThis->MasterPort);
1786	pThis->MasterPort = NULL;
1787	}
1788	if (pThis->pDASession)
1789	{
1790	LogFlow(("%s-%d: releasing the DA session!\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
1791	CFRelease(pThis->pDASession);
1792	pThis->pDASession = NULL;
1793	}
1794	#else
1795	if (pThis->FileDevice != NIL_RTFILE)
1796	{
1797	int rc = RTFileClose(pThis->FileDevice);
1798	AssertRC(rc);
1799	pThis->FileDevice = NIL_RTFILE;
1800	}
1801	#endif
1802
1803	#ifdef RT_OS_SOLARIS
1804	if (pThis->FileRawDevice != NIL_RTFILE)
1805	{
1806	int rc = RTFileClose(pThis->FileRawDevice);
1807	AssertRC(rc);
1808	pThis->FileRawDevice = NIL_RTFILE;
1809	}
1810
1811	if (pThis->pszRawDeviceOpen)
1812	{
1813	RTStrFree(pThis->pszRawDeviceOpen);
1814	pThis->pszRawDeviceOpen = NULL;
1815	}
1816	#endif
1817
1818	if (pThis->pszDevice)
1819	{
1820	MMR3HeapFree(pThis->pszDevice);
1821	pThis->pszDevice = NULL;
1822	}
1823
1824	if (pThis->pszDeviceOpen)
1825	{
1826	RTStrFree(pThis->pszDeviceOpen);
1827	pThis->pszDeviceOpen = NULL;
1828	}
1829
1830	/* Forget about the notifications. */
1831	pThis->pDrvMountNotify = NULL;
1832
1833	/* Leave the instance operational if this is just a cleanup of the state
1834	* after an attach error happened. So don't destry the critsect then. */
1835	if (!pThis->fKeepInstance && RTCritSectIsInitialized(&pThis->CritSect))
1836	RTCritSectDelete(&pThis->CritSect);
1837	LogFlow(("%s-%d: drvHostBaseDestruct completed\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
1838	}
1839
1840
1841	/**
1842	* Initializes the instance data (init part 1).
1843	*
1844	* The driver which derives from this base driver will override function pointers after
1845	* calling this method, and complete the construction by calling DRVHostBaseInitFinish().
1846	*
1847	* On failure call DRVHostBaseDestruct().
1848	*
1849	* @returns VBox status code.
1850	* @param pDrvIns Driver instance.
1851	* @param pCfgHandle Configuration handle.
1852	* @param enmType Device type.
1853	*/
1854	int DRVHostBaseInitData(PPDMDRVINS pDrvIns, PCFGMNODE pCfgHandle, PDMBLOCKTYPE enmType)
1855	{
1856	PDRVHOSTBASE pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTBASE);
1857	LogFlow(("%s-%d: DRVHostBaseInitData: iInstance=%d\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, pDrvIns->iInstance));
1858
1859	/*
1860	* Initialize most of the data members.
1861	*/
1862	pThis->pDrvIns = pDrvIns;
1863	pThis->fKeepInstance = false;
1864	pThis->ThreadPoller = NIL_RTTHREAD;
1865	#ifdef RT_OS_DARWIN
1866	pThis->MasterPort = NULL;
1867	pThis->ppMMCDI = NULL;
1868	pThis->ppScsiTaskDI = NULL;
1869	pThis->cbBlock = 0;
1870	pThis->pDADisk = NULL;
1871	pThis->pDASession = NULL;
1872	#else
1873	pThis->FileDevice = NIL_RTFILE;
1874	#endif
1875	#ifdef RT_OS_SOLARIS
1876	pThis->FileRawDevice = NIL_RTFILE;
1877	#endif
1878	pThis->enmType = enmType;
1879	//pThis->cErrors = 0;
1880
1881	pThis->pfnGetMediaSize = drvHostBaseGetMediaSize;
1882
1883	/* IBase. */
1884	pDrvIns->IBase.pfnQueryInterface = drvHostBaseQueryInterface;
1885
1886	/* IBlock. */
1887	pThis->IBlock.pfnRead = drvHostBaseRead;
1888	pThis->IBlock.pfnWrite = drvHostBaseWrite;
1889	pThis->IBlock.pfnFlush = drvHostBaseFlush;
1890	pThis->IBlock.pfnIsReadOnly = drvHostBaseIsReadOnly;
1891	pThis->IBlock.pfnGetSize = drvHostBaseGetSize;
1892	pThis->IBlock.pfnGetType = drvHostBaseGetType;
1893	pThis->IBlock.pfnGetUuid = drvHostBaseGetUuid;
1894
1895	/* IBlockBios. */
1896	pThis->IBlockBios.pfnGetPCHSGeometry = drvHostBaseGetPCHSGeometry;
1897	pThis->IBlockBios.pfnSetPCHSGeometry = drvHostBaseSetPCHSGeometry;
1898	pThis->IBlockBios.pfnGetLCHSGeometry = drvHostBaseGetLCHSGeometry;
1899	pThis->IBlockBios.pfnSetLCHSGeometry = drvHostBaseSetLCHSGeometry;
1900	pThis->IBlockBios.pfnIsVisible = drvHostBaseIsVisible;
1901	pThis->IBlockBios.pfnGetType = drvHostBaseBiosGetType;
1902
1903	/* IMount. */
1904	pThis->IMount.pfnMount = drvHostBaseMount;
1905	pThis->IMount.pfnUnmount = drvHostBaseUnmount;
1906	pThis->IMount.pfnIsMounted = drvHostBaseIsMounted;
1907	pThis->IMount.pfnLock = drvHostBaseLock;
1908	pThis->IMount.pfnUnlock = drvHostBaseUnlock;
1909	pThis->IMount.pfnIsLocked = drvHostBaseIsLocked;
1910
1911	/*
1912	* Get the IBlockPort & IMountNotify interfaces of the above driver/device.
1913	*/
1914	pThis->pDrvBlockPort = (PPDMIBLOCKPORT)pDrvIns->pUpBase->pfnQueryInterface(pDrvIns->pUpBase, PDMINTERFACE_BLOCK_PORT);
1915	if (!pThis->pDrvBlockPort)
1916	{
1917	AssertMsgFailed(("Configuration error: No block port interface above!\n"));
1918	return VERR_PDM_MISSING_INTERFACE_ABOVE;
1919	}
1920	pThis->pDrvMountNotify = (PPDMIMOUNTNOTIFY)pDrvIns->pUpBase->pfnQueryInterface(pDrvIns->pUpBase, PDMINTERFACE_MOUNT_NOTIFY);
1921
1922	/*
1923	* Query configuration.
1924	*/
1925	/* Device */
1926	int rc = CFGMR3QueryStringAlloc(pCfgHandle, "Path", &pThis->pszDevice);
1927	if (RT_FAILURE(rc))
1928	{
1929	AssertMsgFailed(("Configuration error: query for \"Path\" string returned %Rra.\n", rc));
1930	return rc;
1931	}
1932
1933	/* Mountable */
1934	uint32_t u32;
1935	rc = CFGMR3QueryU32(pCfgHandle, "Interval", &u32);
1936	if (RT_SUCCESS(rc))
1937	pThis->cMilliesPoller = u32;
1938	else if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1939	pThis->cMilliesPoller = 1000;
1940	else if (RT_FAILURE(rc))
1941	{
1942	AssertMsgFailed(("Configuration error: Query \"Mountable\" resulted in %Rrc.\n", rc));
1943	return rc;
1944	}
1945
1946	/* ReadOnly */
1947	rc = CFGMR3QueryBool(pCfgHandle, "ReadOnly", &pThis->fReadOnlyConfig);
1948	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1949	pThis->fReadOnlyConfig = enmType == PDMBLOCKTYPE_DVD \|\| enmType == PDMBLOCKTYPE_CDROM ? true : false;
1950	else if (RT_FAILURE(rc))
1951	{
1952	AssertMsgFailed(("Configuration error: Query \"ReadOnly\" resulted in %Rrc.\n", rc));
1953	return rc;
1954	}
1955
1956	/* Locked */
1957	rc = CFGMR3QueryBool(pCfgHandle, "Locked", &pThis->fLocked);
1958	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1959	pThis->fLocked = false;
1960	else if (RT_FAILURE(rc))
1961	{
1962	AssertMsgFailed(("Configuration error: Query \"Locked\" resulted in %Rrc.\n", rc));
1963	return rc;
1964	}
1965
1966	/* BIOS visible */
1967	rc = CFGMR3QueryBool(pCfgHandle, "BIOSVisible", &pThis->fBiosVisible);
1968	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1969	pThis->fBiosVisible = true;
1970	else if (RT_FAILURE(rc))
1971	{
1972	AssertMsgFailed(("Configuration error: Query \"BIOSVisible\" resulted in %Rrc.\n", rc));
1973	return rc;
1974	}
1975
1976	/* Uuid */
1977	char *psz;
1978	rc = CFGMR3QueryStringAlloc(pCfgHandle, "Uuid", &psz);
1979	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1980	RTUuidClear(&pThis->Uuid);
1981	else if (RT_SUCCESS(rc))
1982	{
1983	rc = RTUuidFromStr(&pThis->Uuid, psz);
1984	if (RT_FAILURE(rc))
1985	{
1986	AssertMsgFailed(("Configuration error: Uuid from string failed on \"%s\", rc=%Rrc.\n", psz, rc));
1987	MMR3HeapFree(psz);
1988	return rc;
1989	}
1990	MMR3HeapFree(psz);
1991	}
1992	else
1993	{
1994	AssertMsgFailed(("Configuration error: Failed to obtain the uuid, rc=%Rrc.\n", rc));
1995	return rc;
1996	}
1997
1998	/* Define whether attach failure is an error (default) or not. */
1999	bool fAttachFailError;
2000	rc = CFGMR3QueryBool(pCfgHandle, "AttachFailError", &fAttachFailError);
2001	if (RT_FAILURE(rc))
2002	fAttachFailError = true;
2003	pThis->fAttachFailError = fAttachFailError;
2004
2005	/* name to open & watch for */
2006	#ifdef RT_OS_WINDOWS
2007	int iBit = toupper(pThis->pszDevice[0]) - 'A';
2008	if ( iBit > 'Z' - 'A'
2009	\|\| pThis->pszDevice[1] != ':'
2010	\|\| pThis->pszDevice[2])
2011	{
2012	AssertMsgFailed(("Configuration error: Invalid drive specification: '%s'\n", pThis->pszDevice));
2013	return VERR_INVALID_PARAMETER;
2014	}
2015	pThis->fUnitMask = 1 << iBit;
2016	RTStrAPrintf(&pThis->pszDeviceOpen, "\\\\.\\%s", pThis->pszDevice);
2017
2018	#elif defined(RT_OS_SOLARIS)
2019	char *pszBlockDevName = getfullblkname(pThis->pszDevice);
2020	if (!pszBlockDevName)
2021	return VERR_NO_MEMORY;
2022	pThis->pszDeviceOpen = RTStrDup(pszBlockDevName); /* for RTStrFree() */
2023	free(pszBlockDevName);
2024	pThis->pszRawDeviceOpen = RTStrDup(pThis->pszDevice);
2025
2026	#else
2027	pThis->pszDeviceOpen = RTStrDup(pThis->pszDevice);
2028	#endif
2029
2030	if (!pThis->pszDeviceOpen)
2031	return VERR_NO_MEMORY;
2032
2033	return VINF_SUCCESS;
2034	}
2035
2036
2037	/**
2038	* Do the 2nd part of the init after the derived driver has overridden the defaults.
2039	*
2040	* On failure call DRVHostBaseDestruct().
2041	*
2042	* @returns VBox status code.
2043	* @param pThis Pointer to the instance data.
2044	*/
2045	int DRVHostBaseInitFinish(PDRVHOSTBASE pThis)
2046	{
2047	int src = VINF_SUCCESS;
2048	PPDMDRVINS pDrvIns = pThis->pDrvIns;
2049
2050	/* log config summary */
2051	Log(("%s-%d: pszDevice='%s' (%s) cMilliesPoller=%d fReadOnlyConfig=%d fLocked=%d fBIOSVisible=%d Uuid=%RTuuid\n",
2052	pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, pThis->pszDevice, pThis->pszDeviceOpen, pThis->cMilliesPoller,
2053	pThis->fReadOnlyConfig, pThis->fLocked, pThis->fBiosVisible, &pThis->Uuid));
2054
2055	/*
2056	* Check that there are no drivers below us.
2057	*/
2058	AssertMsgReturn(PDMDrvHlpNoAttach(pDrvIns) == VERR_PDM_NO_ATTACHED_DRIVER,
2059	("Configuration error: Not possible to attach anything to this driver!\n"),
2060	VERR_PDM_DRVINS_NO_ATTACH);
2061
2062	/*
2063	* Register saved state.
2064	*/
2065	int rc = PDMDrvHlpSSMRegisterLoadDone(pDrvIns, drvHostBaseLoadDone);
2066	if (RT_FAILURE(rc))
2067	return rc;
2068
2069	/*
2070	* Verify type.
2071	*/
2072	#ifdef RT_OS_WINDOWS
2073	UINT uDriveType = GetDriveType(pThis->pszDevice);
2074	switch (pThis->enmType)
2075	{
2076	case PDMBLOCKTYPE_FLOPPY_360:
2077	case PDMBLOCKTYPE_FLOPPY_720:
2078	case PDMBLOCKTYPE_FLOPPY_1_20:
2079	case PDMBLOCKTYPE_FLOPPY_1_44:
2080	case PDMBLOCKTYPE_FLOPPY_2_88:
2081	if (uDriveType != DRIVE_REMOVABLE)
2082	{
2083	AssertMsgFailed(("Configuration error: '%s' is not a floppy (type=%d)\n",
2084	pThis->pszDevice, uDriveType));
2085	return VERR_INVALID_PARAMETER;
2086	}
2087	break;
2088	case PDMBLOCKTYPE_CDROM:
2089	case PDMBLOCKTYPE_DVD:
2090	if (uDriveType != DRIVE_CDROM)
2091	{
2092	AssertMsgFailed(("Configuration error: '%s' is not a cdrom (type=%d)\n",
2093	pThis->pszDevice, uDriveType));
2094	return VERR_INVALID_PARAMETER;
2095	}
2096	break;
2097	case PDMBLOCKTYPE_HARD_DISK:
2098	default:
2099	AssertMsgFailed(("enmType=%d\n", pThis->enmType));
2100	return VERR_INVALID_PARAMETER;
2101	}
2102	#endif
2103
2104	/*
2105	* Open the device.
2106	*/
2107	#if defined(RT_OS_DARWIN)
2108	rc = drvHostBaseOpen(pThis, NULL, pThis->fReadOnlyConfig);
2109	#else
2110	rc = drvHostBaseReopen(pThis);
2111	#endif
2112	if (RT_FAILURE(rc))
2113	{
2114	char *pszDevice = pThis->pszDevice;
2115	#ifndef RT_OS_DARWIN
2116	char szPathReal[256];
2117	if ( RTPathExists(pszDevice)
2118	&& RT_SUCCESS(RTPathReal(pszDevice, szPathReal, sizeof(szPathReal))))
2119	pszDevice = szPathReal;
2120	pThis->FileDevice = NIL_RTFILE;
2121	#endif
2122	#ifdef RT_OS_SOLARIS
2123	pThis->FileRawDevice = NIL_RTFILE;
2124	#endif
2125
2126	/*
2127	* Disable CD/DVD passthrough in case it was enabled. Would cause
2128	* weird failures later when the guest issues commands. These would
2129	* all fail because of the invalid file handle. So use the normal
2130	* virtual CD/DVD code, which deals more gracefully with unavailable
2131	* "media" - actually a complete drive in this case.
2132	*/
2133	pThis->IBlock.pfnSendCmd = NULL;
2134	AssertMsgFailed(("Could not open host device %s, rc=%Rrc\n", pszDevice, rc));
2135	switch (rc)
2136	{
2137	case VERR_ACCESS_DENIED:
2138	return PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS,
2139	#ifdef RT_OS_LINUX
2140	N_("Cannot open host device '%s' for %s access. Check the permissions "
2141	"of that device ('/bin/ls -l %s'): Most probably you need to be member "
2142	"of the device group. Make sure that you logout/login after changing "
2143	"the group settings of the current user"),
2144	#else
2145	N_("Cannot open host device '%s' for %s access. Check the permissions "
2146	"of that device"),
2147	#endif
2148	pszDevice, pThis->fReadOnlyConfig ? "readonly" : "read/write",
2149	pszDevice);
2150	default:
2151	{
2152	if (pThis->fAttachFailError)
2153	return rc;
2154	int erc = PDMDrvHlpVMSetRuntimeError(pDrvIns, 0 /fFlags/,
2155	"DrvHost_MOUNTFAIL",
2156	N_("Cannot attach to host device '%s'"), pszDevice);
2157	AssertRC(erc);
2158	src = rc;
2159	}
2160	}
2161	}
2162	#ifdef RT_OS_WINDOWS
2163	if (RT_SUCCESS(src))
2164	DRVHostBaseMediaPresent(pThis);
2165	#endif
2166
2167	/*
2168	* Lock the drive if that's required by the configuration.
2169	*/
2170	if (pThis->fLocked)
2171	{
2172	if (pThis->pfnDoLock)
2173	rc = pThis->pfnDoLock(pThis, true);
2174	if (RT_FAILURE(rc))
2175	{
2176	AssertMsgFailed(("Failed to lock the dvd drive. rc=%Rrc\n", rc));
2177	return rc;
2178	}
2179	}
2180
2181	#ifndef RT_OS_WINDOWS
2182	if (RT_SUCCESS(src))
2183	{
2184	/*
2185	* Create the event semaphore which the poller thread will wait on.
2186	*/
2187	rc = RTSemEventCreate(&pThis->EventPoller);
2188	if (RT_FAILURE(rc))
2189	return rc;
2190	}
2191	#endif
2192
2193	/*
2194	* Initialize the critical section used for serializing the access to the media.
2195	*/
2196	rc = RTCritSectInit(&pThis->CritSect);
2197	if (RT_FAILURE(rc))
2198	return rc;
2199
2200	if (RT_SUCCESS(src))
2201	{
2202	/*
2203	* Start the thread which will poll for the media.
2204	*/
2205	rc = RTThreadCreate(&pThis->ThreadPoller, drvHostBaseMediaThread, pThis, 0,
2206	RTTHREADTYPE_INFREQUENT_POLLER, RTTHREADFLAGS_WAITABLE, "DVDMEDIA");
2207	if (RT_FAILURE(rc))
2208	{
2209	AssertMsgFailed(("Failed to create poller thread. rc=%Rrc\n", rc));
2210	return rc;
2211	}
2212
2213	/*
2214	* Wait for the thread to start up (!w32:) and do one detection loop.
2215	*/
2216	rc = RTThreadUserWait(pThis->ThreadPoller, 10000);
2217	AssertRC(rc);
2218	#ifdef RT_OS_WINDOWS
2219	if (!pThis->hwndDeviceChange)
2220	return VERR_GENERAL_FAILURE;
2221	#endif
2222	}
2223
2224	if (RT_FAILURE(src))
2225	return src;
2226	return rc;
2227	}
2228

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source: vbox/trunk/src/VBox/Devices/Storage/DrvHostBase.cpp@ 23973

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