DrvHostBase.cpp@ 25974

Last change on this file since 25974 was 25974, checked in by vboxsync, 15 years ago
pdmifs.h: another batch of _IID changes.
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1	/* $Id: DrvHostBase.cpp 25974 2010-01-22 14:49:05Z 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.215389.xyz. 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	/**
566	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
567	*/
568	static DECLCALLBACK(void ) drvHostBaseQueryInterface(PPDMIBASE pInterface, const char pszIID)
569	{
570	PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
571	PDRVHOSTBASE pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTBASE);
572
573	if (RTUuidCompare2Strs(pszIID, PDMIBASE_IID) == 0)
574	return &pDrvIns->IBase;
575	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBLOCK, &pThis->IBlock);
576	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBLOCKBIOS, pThis->fBiosVisible ? &pThis->IBlockBios : NULL);
577	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIMOUNT, &pThis->IMount);
578	return NULL;
579	}
580
581
582	/* -=-=-=-=- poller thread -=-=-=-=- */
583
584	#ifdef RT_OS_DARWIN
585	/** The runloop input source name for the disk arbitration events. */
586	# define MY_RUN_LOOP_MODE CFSTR("drvHostBaseDA") /** @todo r=bird: Check if this will cause trouble in the same way that the one in the USB code did. */
587
588	/**
589	* Gets the BSD Name (/dev/disc[0-9]+) for the service.
590	*
591	* This is done by recursing down the I/O registry until we hit upon an entry
592	* with a BSD Name. Usually we find it two levels down. (Further down under
593	* the IOCDPartitionScheme, the volume (slices) BSD Name is found. We don't
594	* seem to have to go this far fortunately.)
595	*
596	* @return VINF_SUCCESS if found, VERR_FILE_NOT_FOUND otherwise.
597	* @param Entry The current I/O registry entry reference.
598	* @param pszName Where to store the name. 128 bytes.
599	* @param cRecursions Number of recursions. This is used as an precation
600	* just to limit the depth and avoid blowing the stack
601	* should we hit a bug or something.
602	*/
603	static int drvHostBaseGetBSDName(io_registry_entry_t Entry, char *pszName, unsigned cRecursions)
604	{
605	int rc = VERR_FILE_NOT_FOUND;
606	io_iterator_t Children = 0;
607	kern_return_t krc = IORegistryEntryGetChildIterator(Entry, kIOServicePlane, &Children);
608	if (krc == KERN_SUCCESS)
609	{
610	io_object_t Child;
611	while ( rc == VERR_FILE_NOT_FOUND
612	&& (Child = IOIteratorNext(Children)) != 0)
613	{
614	CFStringRef BSDNameStrRef = (CFStringRef)IORegistryEntryCreateCFProperty(Child, CFSTR(kIOBSDNameKey), kCFAllocatorDefault, 0);
615	if (BSDNameStrRef)
616	{
617	if (CFStringGetCString(BSDNameStrRef, pszName, 128, kCFStringEncodingUTF8))
618	rc = VINF_SUCCESS;
619	else
620	AssertFailed();
621	CFRelease(BSDNameStrRef);
622	}
623	if (rc == VERR_FILE_NOT_FOUND && cRecursions < 10)
624	rc = drvHostBaseGetBSDName(Child, pszName, cRecursions + 1);
625	IOObjectRelease(Child);
626	}
627	IOObjectRelease(Children);
628	}
629	return rc;
630	}
631
632
633	/**
634	* Callback notifying us that the async DADiskClaim()/DADiskUnmount call has completed.
635	*
636	* @param DiskRef The disk that was attempted claimed / unmounted.
637	* @param DissenterRef NULL on success, contains details on failure.
638	* @param pvContext Pointer to the return code variable.
639	*/
640	static void drvHostBaseDADoneCallback(DADiskRef DiskRef, DADissenterRef DissenterRef, void *pvContext)
641	{
642	int prc = (int )pvContext;
643	if (!DissenterRef)
644	*prc = 0;
645	else
646	*prc = DADissenterGetStatus(DissenterRef) ? DADissenterGetStatus(DissenterRef) : -1;
647	CFRunLoopStop(CFRunLoopGetCurrent());
648	}
649
650
651	/**
652	* Obtain exclusive access to the DVD device, umount it if necessary.
653	*
654	* @return VBox status code.
655	* @param pThis The driver instance.
656	* @param DVDService The DVD service object.
657	*/
658	static int drvHostBaseObtainExclusiveAccess(PDRVHOSTBASE pThis, io_object_t DVDService)
659	{
660	PPDMDRVINS pDrvIns = pThis->pDrvIns; NOREF(pDrvIns);
661
662	for (unsigned iTry = 0;; iTry++)
663	{
664	IOReturn irc = (*pThis->ppScsiTaskDI)->ObtainExclusiveAccess(pThis->ppScsiTaskDI);
665	if (irc == kIOReturnSuccess)
666	{
667	/*
668	* This is a bit weird, but if we unmounted the DVD drive we also need to
669	* unlock it afterwards or the guest won't be able to eject it later on.
670	*/
671	if (pThis->pDADisk)
672	{
673	uint8_t abCmd[16] =
674	{
675	SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL, 0, 0, 0, false, 0,
676	0,0,0,0,0,0,0,0,0,0
677	};
678	DRVHostBaseScsiCmd(pThis, abCmd, 6, PDMBLOCKTXDIR_NONE, NULL, NULL, NULL, 0, 0);
679	}
680	return VINF_SUCCESS;
681	}
682	if (irc == kIOReturnExclusiveAccess)
683	return VERR_SHARING_VIOLATION; /* already used exclusivly. */
684	if (irc != kIOReturnBusy)
685	return VERR_GENERAL_FAILURE; /* not mounted */
686
687	/*
688	* Attempt to the unmount all volumes of the device.
689	* It seems we can can do this all in one go without having to enumerate the
690	* volumes (sessions) and deal with them one by one. This is very fortuitous
691	* as the disk arbitration API is a bit cumbersome to deal with.
692	*/
693	if (iTry > 2)
694	return VERR_DRIVE_LOCKED;
695	char szName[128];
696	int rc = drvHostBaseGetBSDName(DVDService, &szName[0], 0);
697	if (RT_SUCCESS(rc))
698	{
699	pThis->pDASession = DASessionCreate(kCFAllocatorDefault);
700	if (pThis->pDASession)
701	{
702	DASessionScheduleWithRunLoop(pThis->pDASession, CFRunLoopGetCurrent(), MY_RUN_LOOP_MODE);
703	pThis->pDADisk = DADiskCreateFromBSDName(kCFAllocatorDefault, pThis->pDASession, szName);
704	if (pThis->pDADisk)
705	{
706	/*
707	* Try claim the device.
708	*/
709	Log(("%s-%d: calling DADiskClaim on '%s'.\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, szName));
710	int rcDA = -2;
711	DADiskClaim(pThis->pDADisk, kDADiskClaimOptionDefault, NULL, NULL, drvHostBaseDADoneCallback, &rcDA);
712	SInt32 rc32 = CFRunLoopRunInMode(MY_RUN_LOOP_MODE, 120.0, FALSE);
713	AssertMsg(rc32 == kCFRunLoopRunStopped, ("rc32=%RI32 (%RX32)\n", rc32, rc32));
714	if ( rc32 == kCFRunLoopRunStopped
715	&& !rcDA)
716	{
717	/*
718	* Try unmount the device.
719	*/
720	Log(("%s-%d: calling DADiskUnmount on '%s'.\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, szName));
721	rcDA = -2;
722	DADiskUnmount(pThis->pDADisk, kDADiskUnmountOptionWhole, drvHostBaseDADoneCallback, &rcDA);
723	SInt32 rc32 = CFRunLoopRunInMode(MY_RUN_LOOP_MODE, 120.0, FALSE);
724	AssertMsg(rc32 == kCFRunLoopRunStopped, ("rc32=%RI32 (%RX32)\n", rc32, rc32));
725	if ( rc32 == kCFRunLoopRunStopped
726	&& !rcDA)
727	{
728	iTry = 99;
729	DASessionUnscheduleFromRunLoop(pThis->pDASession, CFRunLoopGetCurrent(), MY_RUN_LOOP_MODE);
730	Log(("%s-%d: unmount succeed - retrying.\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
731	continue;
732	}
733	Log(("%s-%d: umount => rc32=%d & rcDA=%#x\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, rc32, rcDA));
734
735	/* failed - cleanup */
736	DADiskUnclaim(pThis->pDADisk);
737	}
738	else
739	Log(("%s-%d: claim => rc32=%d & rcDA=%#x\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, rc32, rcDA));
740
741	CFRelease(pThis->pDADisk);
742	pThis->pDADisk = NULL;
743	}
744	else
745	Log(("%s-%d: failed to open disk '%s'!\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, szName));
746
747	DASessionUnscheduleFromRunLoop(pThis->pDASession, CFRunLoopGetCurrent(), MY_RUN_LOOP_MODE);
748	CFRelease(pThis->pDASession);
749	pThis->pDASession = NULL;
750	}
751	else
752	Log(("%s-%d: failed to create DA session!\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
753	}
754	RTThreadSleep(10);
755	}
756	}
757	#endif /* RT_OS_DARWIN */
758
759
760	#ifndef RT_OS_SOLARIS
761	/**
762	* Wrapper for open / RTFileOpen / IOKit.
763	*
764	* @remark The Darwin code must correspond exactly to the enumeration
765	* done in Main/darwin/iokit.c.
766	*/
767	static int drvHostBaseOpen(PDRVHOSTBASE pThis, PRTFILE pFileDevice, bool fReadOnly)
768	{
769	#ifdef RT_OS_DARWIN
770	/* Darwin is kind of special... */
771	Assert(!pFileDevice); NOREF(pFileDevice);
772	Assert(!pThis->cbBlock);
773	Assert(!pThis->MasterPort);
774	Assert(!pThis->ppMMCDI);
775	Assert(!pThis->ppScsiTaskDI);
776
777	/*
778	* Open the master port on the first invocation.
779	*/
780	kern_return_t krc = IOMasterPort(MACH_PORT_NULL, &pThis->MasterPort);
781	AssertReturn(krc == KERN_SUCCESS, VERR_GENERAL_FAILURE);
782
783	/*
784	* Create a matching dictionary for searching for DVD services in the IOKit.
785	*
786	* [If I understand this correctly, plain CDROMs doesn't show up as
787	* IODVDServices. Too keep things simple, we will only support DVDs
788	* until somebody complains about it and we get hardware to test it on.
789	* (Unless I'm much mistaken, there aren't any (orignal) intel macs with
790	* plain cdroms.)]
791	*/
792	CFMutableDictionaryRef RefMatchingDict = IOServiceMatching("IODVDServices");
793	AssertReturn(RefMatchingDict, NULL);
794
795	/*
796	* do the search and get a collection of keyboards.
797	*/
798	io_iterator_t DVDServices = NULL;
799	IOReturn irc = IOServiceGetMatchingServices(pThis->MasterPort, RefMatchingDict, &DVDServices);
800	AssertMsgReturn(irc == kIOReturnSuccess, ("irc=%d\n", irc), NULL);
801	RefMatchingDict = NULL; /* the reference is consumed by IOServiceGetMatchingServices. */
802
803	/*
804	* Enumerate the DVD drives (services).
805	* (This enumeration must be identical to the one performed in DrvHostBase.cpp.)
806	*/
807	int rc = VERR_FILE_NOT_FOUND;
808	unsigned i = 0;
809	io_object_t DVDService;
810	while ((DVDService = IOIteratorNext(DVDServices)) != 0)
811	{
812	/*
813	* Get the properties we use to identify the DVD drive.
814	*
815	* While there is a (weird 12 byte) GUID, it isn't persistent
816	* accross boots. So, we have to use a combination of the
817	* vendor name and product name properties with an optional
818	* sequence number for identification.
819	*/
820	CFMutableDictionaryRef PropsRef = 0;
821	kern_return_t krc = IORegistryEntryCreateCFProperties(DVDService, &PropsRef, kCFAllocatorDefault, kNilOptions);
822	if (krc == KERN_SUCCESS)
823	{
824	/* Get the Device Characteristics dictionary. */
825	CFDictionaryRef DevCharRef = (CFDictionaryRef)CFDictionaryGetValue(PropsRef, CFSTR(kIOPropertyDeviceCharacteristicsKey));
826	if (DevCharRef)
827	{
828	/* The vendor name. */
829	char szVendor[128];
830	char *pszVendor = &szVendor[0];
831	CFTypeRef ValueRef = CFDictionaryGetValue(DevCharRef, CFSTR(kIOPropertyVendorNameKey));
832	if ( ValueRef
833	&& CFGetTypeID(ValueRef) == CFStringGetTypeID()
834	&& CFStringGetCString((CFStringRef)ValueRef, szVendor, sizeof(szVendor), kCFStringEncodingUTF8))
835	pszVendor = RTStrStrip(szVendor);
836	else
837	*pszVendor = '\0';
838
839	/* The product name. */
840	char szProduct[128];
841	char *pszProduct = &szProduct[0];
842	ValueRef = CFDictionaryGetValue(DevCharRef, CFSTR(kIOPropertyProductNameKey));
843	if ( ValueRef
844	&& CFGetTypeID(ValueRef) == CFStringGetTypeID()
845	&& CFStringGetCString((CFStringRef)ValueRef, szProduct, sizeof(szProduct), kCFStringEncodingUTF8))
846	pszProduct = RTStrStrip(szProduct);
847	else
848	*pszProduct = '\0';
849
850	/* Construct the two names and compare thwm with the one we're searching for. */
851	char szName1[256 + 32];
852	char szName2[256 + 32];
853	if (pszVendor \|\| pszProduct)
854	{
855	if (pszVendor && pszProduct)
856	{
857	RTStrPrintf(szName1, sizeof(szName1), "%s %s", pszVendor, pszProduct);
858	RTStrPrintf(szName2, sizeof(szName2), "%s %s (#%u)", pszVendor, pszProduct, i);
859	}
860	else
861	{
862	strcpy(szName1, *pszVendor ? pszVendor : pszProduct);
863	RTStrPrintf(szName2, sizeof(szName2), "%s %s (#%u)", *pszVendor ? pszVendor : pszProduct, i);
864	}
865	}
866	else
867	{
868	RTStrPrintf(szName1, sizeof(szName1), "(#%u)", i);
869	strcpy(szName2, szName1);
870	}
871
872	if ( !strcmp(szName1, pThis->pszDeviceOpen)
873	\|\| !strcmp(szName2, pThis->pszDeviceOpen))
874	{
875	/*
876	* Found it! Now, get the client interface and stuff.
877	* Note that we could also query kIOSCSITaskDeviceUserClientTypeID here if the
878	* MMC client plugin is missing. For now we assume this won't be necessary.
879	*/
880	SInt32 Score = 0;
881	IOCFPlugInInterface **ppPlugInInterface = NULL;
882	krc = IOCreatePlugInInterfaceForService(DVDService, kIOMMCDeviceUserClientTypeID, kIOCFPlugInInterfaceID,
883	&ppPlugInInterface, &Score);
884	if (krc == KERN_SUCCESS)
885	{
886	HRESULT hrc = (*ppPlugInInterface)->QueryInterface(ppPlugInInterface,
887	CFUUIDGetUUIDBytes(kIOMMCDeviceInterfaceID),
888	(LPVOID *)&pThis->ppMMCDI);
889	(*ppPlugInInterface)->Release(ppPlugInInterface);
890	ppPlugInInterface = NULL;
891	if (hrc == S_OK)
892	{
893	pThis->ppScsiTaskDI = (*pThis->ppMMCDI)->GetSCSITaskDeviceInterface(pThis->ppMMCDI);
894	if (pThis->ppScsiTaskDI)
895	rc = VINF_SUCCESS;
896	else
897	{
898	LogRel(("GetSCSITaskDeviceInterface failed on '%s'\n", pThis->pszDeviceOpen));
899	rc = VERR_NOT_SUPPORTED;
900	(*pThis->ppMMCDI)->Release(pThis->ppMMCDI);
901	}
902	}
903	else
904	{
905	rc = VERR_GENERAL_FAILURE;//RTErrConvertFromDarwinCOM(krc);
906	pThis->ppMMCDI = NULL;
907	}
908	}
909	else /* Check for kIOSCSITaskDeviceUserClientTypeID? */
910	rc = VERR_GENERAL_FAILURE;//RTErrConvertFromDarwinKern(krc);
911
912	/* Obtain exclusive access to the device so we can send SCSI commands. */
913	if (RT_SUCCESS(rc))
914	rc = drvHostBaseObtainExclusiveAccess(pThis, DVDService);
915
916	/* Cleanup on failure. */
917	if (RT_FAILURE(rc))
918	{
919	if (pThis->ppScsiTaskDI)
920	{
921	(*pThis->ppScsiTaskDI)->Release(pThis->ppScsiTaskDI);
922	pThis->ppScsiTaskDI = NULL;
923	}
924	if (pThis->ppMMCDI)
925	{
926	(*pThis->ppMMCDI)->Release(pThis->ppMMCDI);
927	pThis->ppMMCDI = NULL;
928	}
929	}
930
931	IOObjectRelease(DVDService);
932	break;
933	}
934	}
935	CFRelease(PropsRef);
936	}
937	else
938	AssertMsgFailed(("krc=%#x\n", krc));
939
940	IOObjectRelease(DVDService);
941	i++;
942	}
943
944	IOObjectRelease(DVDServices);
945	return rc;
946
947	#elif defined(RT_OS_LINUX)
948	/** @todo we've got RTFILE_O_NON_BLOCK now. Change the code to use RTFileOpen. */
949	int FileDevice = open(pThis->pszDeviceOpen, (pThis->fReadOnlyConfig ? O_RDONLY : O_RDWR) \| O_NONBLOCK);
950	if (FileDevice < 0)
951	return RTErrConvertFromErrno(errno);
952	*pFileDevice = FileDevice;
953	return VINF_SUCCESS;
954
955	#elif defined(RT_OS_FREEBSD)
956	int rc = VINF_SUCCESS;
957	RTFILE FileDevice;
958
959	rc = RTFileOpen(&FileDevice, pThis->pszDeviceOpen, RTFILE_O_READWRITE \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE);
960	if (RT_FAILURE(rc))
961	return rc;
962
963	/*
964	* The current device handle can't passthrough SCSI commands.
965	* We have to get he passthrough device path and open this.
966	*/
967	union ccb DeviceCCB;
968	memset(&DeviceCCB, 0, sizeof(DeviceCCB));
969
970	DeviceCCB.ccb_h.func_code = XPT_GDEVLIST;
971	int rcBSD = ioctl(FileDevice, CAMGETPASSTHRU, &DeviceCCB);
972	if (!rcBSD)
973	{
974	char *pszPassthroughDevice = NULL;
975	rc = RTStrAPrintf(&pszPassthroughDevice, "/dev/%s%u",
976	DeviceCCB.cgdl.periph_name, DeviceCCB.cgdl.unit_number);
977	if (RT_SUCCESS(rc))
978	{
979	RTFILE PassthroughDevice;
980
981	rc = RTFileOpen(&PassthroughDevice, pszPassthroughDevice, RTFILE_O_READWRITE \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE);
982
983	RTStrFree(pszPassthroughDevice);
984
985	if (RT_SUCCESS(rc))
986	{
987	/* Get needed device parameters. */
988	union ccb DeviceCCB;
989
990	/*
991	* The device path, target id and lun id. Those are
992	* needed for the SCSI passthrough ioctl.
993	*/
994	memset(&DeviceCCB, 0, sizeof(DeviceCCB));
995	DeviceCCB.ccb_h.func_code = XPT_GDEVLIST;
996
997	rcBSD = ioctl(PassthroughDevice, CAMGETPASSTHRU, &DeviceCCB);
998	if (!rcBSD)
999	{
1000	if (DeviceCCB.cgdl.status != CAM_GDEVLIST_ERROR)
1001	{
1002	pThis->ScsiBus = DeviceCCB.ccb_h.path_id;
1003	pThis->ScsiTargetID = DeviceCCB.ccb_h.target_id;
1004	pThis->ScsiLunID = DeviceCCB.ccb_h.target_lun;
1005	*pFileDevice = PassthroughDevice;
1006	}
1007	else
1008	{
1009	/* The passthrough device wasn't found. */
1010	rc = VERR_NOT_FOUND;
1011	}
1012	}
1013	else
1014	rc = RTErrConvertFromErrno(errno);
1015
1016	if (RT_FAILURE(rc))
1017	RTFileClose(PassthroughDevice);
1018	}
1019	}
1020	}
1021	else
1022	rc = RTErrConvertFromErrno(errno);
1023
1024	RTFileClose(FileDevice);
1025	return rc;
1026	#else
1027	return RTFileOpen(pFileDevice, pThis->pszDeviceOpen,
1028	(fReadOnly ? RTFILE_O_READ : RTFILE_O_READWRITE) \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE);
1029	#endif
1030	}
1031
1032	#else /* RT_OS_SOLARIS */
1033
1034	/**
1035	* Solaris wrapper for RTFileOpen.
1036	*
1037	* Solaris has to deal with two filehandles, a block and a raw one. Rather than messing
1038	* with drvHostBaseOpen's function signature & body, having a seperate one is better.
1039	*
1040	* @returns VBox status code.
1041	*/
1042	static int drvHostBaseOpen(PDRVHOSTBASE pThis, PRTFILE pFileBlockDevice, PRTFILE pFileRawDevice, bool fReadOnly)
1043	{
1044	unsigned fFlags = (fReadOnly ? RTFILE_O_READ : RTFILE_O_READWRITE)
1045	\| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_NON_BLOCK;
1046	int rc = RTFileOpen(pFileBlockDevice, pThis->pszDeviceOpen, fFlags);
1047	if (RT_SUCCESS(rc))
1048	{
1049	rc = RTFileOpen(pFileRawDevice, pThis->pszRawDeviceOpen, fFlags);
1050	if (RT_SUCCESS(rc))
1051	return rc;
1052
1053	LogRel(("DVD: failed to open device %s rc=%Rrc\n", pThis->pszRawDeviceOpen, rc));
1054	RTFileClose(*pFileBlockDevice);
1055	}
1056	else
1057	LogRel(("DVD: failed to open device %s rc=%Rrc\n", pThis->pszDeviceOpen, rc));
1058	return rc;
1059	}
1060	#endif /* RT_OS_SOLARIS */
1061
1062
1063	/**
1064	* (Re)opens the device.
1065	*
1066	* This is used to open the device during construction, but it's also used to re-open
1067	* the device when a media is inserted. This re-open will kill off any cached data
1068	* that Linux for some peculiar reason thinks should survive a media change...
1069	*
1070	* @returns VBOX status code.
1071	* @param pThis Instance data.
1072	*/
1073	static int drvHostBaseReopen(PDRVHOSTBASE pThis)
1074	{
1075	#ifndef RT_OS_DARWIN /* Only one open for darwin. */
1076	LogFlow(("%s-%d: drvHostBaseReopen: '%s'\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->pszDeviceOpen));
1077
1078	RTFILE FileDevice;
1079	#ifdef RT_OS_SOLARIS
1080	if (pThis->FileRawDevice != NIL_RTFILE)
1081	{
1082	RTFileClose(pThis->FileRawDevice);
1083	pThis->FileRawDevice = NIL_RTFILE;
1084	}
1085	if (pThis->FileDevice != NIL_RTFILE)
1086	{
1087	RTFileClose(pThis->FileDevice);
1088	pThis->FileDevice = NIL_RTFILE;
1089	}
1090	RTFILE FileRawDevice;
1091	int rc = drvHostBaseOpen(pThis, &FileDevice, &FileRawDevice, pThis->fReadOnlyConfig);
1092	#else
1093	int rc = drvHostBaseOpen(pThis, &FileDevice, pThis->fReadOnlyConfig);
1094	#endif
1095	if (RT_FAILURE(rc))
1096	{
1097	if (!pThis->fReadOnlyConfig)
1098	{
1099	LogFlow(("%s-%d: drvHostBaseReopen: '%s' - retry readonly (%Rrc)\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->pszDeviceOpen, rc));
1100	#ifdef RT_OS_SOLARIS
1101	rc = drvHostBaseOpen(pThis, &FileDevice, &FileRawDevice, false);
1102	#else
1103	rc = drvHostBaseOpen(pThis, &FileDevice, false);
1104	#endif
1105	}
1106	if (RT_FAILURE(rc))
1107	{
1108	LogFlow(("%s-%d: failed to open device '%s', rc=%Rrc\n",
1109	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->pszDevice, rc));
1110	return rc;
1111	}
1112	pThis->fReadOnly = true;
1113	}
1114	else
1115	pThis->fReadOnly = pThis->fReadOnlyConfig;
1116
1117	#ifdef RT_OS_SOLARIS
1118	if (pThis->FileRawDevice != NIL_RTFILE)
1119	RTFileClose(pThis->FileRawDevice);
1120	pThis->FileRawDevice = FileRawDevice;
1121	#endif
1122
1123	if (pThis->FileDevice != NIL_RTFILE)
1124	RTFileClose(pThis->FileDevice);
1125	pThis->FileDevice = FileDevice;
1126	#endif /* !RT_OS_DARWIN */
1127	return VINF_SUCCESS;
1128	}
1129
1130
1131	/**
1132	* Queries the media size.
1133	*
1134	* @returns VBox status code.
1135	* @param pThis Pointer to the instance data.
1136	* @param pcb Where to store the media size in bytes.
1137	*/
1138	static int drvHostBaseGetMediaSize(PDRVHOSTBASE pThis, uint64_t *pcb)
1139	{
1140	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_FREEBSD)
1141	/*
1142	* Try a READ_CAPACITY command...
1143	*/
1144	struct
1145	{
1146	uint32_t cBlocks;
1147	uint32_t cbBlock;
1148	} Buf = {0, 0};
1149	uint32_t cbBuf = sizeof(Buf);
1150	uint8_t abCmd[16] =
1151	{
1152	SCSI_READ_CAPACITY, 0, 0, 0, 0, 0, 0,
1153	0,0,0,0,0,0,0,0,0
1154	};
1155	int rc = DRVHostBaseScsiCmd(pThis, abCmd, 6, PDMBLOCKTXDIR_FROM_DEVICE, &Buf, &cbBuf, NULL, 0, 0);
1156	if (RT_SUCCESS(rc))
1157	{
1158	Assert(cbBuf == sizeof(Buf));
1159	Buf.cBlocks = RT_BE2H_U32(Buf.cBlocks);
1160	Buf.cbBlock = RT_BE2H_U32(Buf.cbBlock);
1161	//if (Buf.cbBlock > 2048) /* everyone else is doing this... check if it needed/right.*/
1162	// Buf.cbBlock = 2048;
1163	pThis->cbBlock = Buf.cbBlock;
1164
1165	pcb = (uint64_t)Buf.cBlocks Buf.cbBlock;
1166	}
1167	return rc;
1168
1169	#elif defined(RT_OS_SOLARIS)
1170	/*
1171	* Sun docs suggests using DKIOCGGEOM instead of DKIOCGMEDIAINFO, but
1172	* Sun themselves use DKIOCGMEDIAINFO for DVDs/CDs, and use DKIOCGGEOM
1173	* for secondary storage devices.
1174	*/
1175	struct dk_minfo MediaInfo;
1176	if (ioctl(pThis->FileRawDevice, DKIOCGMEDIAINFO, &MediaInfo) == 0)
1177	{
1178	pcb = MediaInfo.dki_capacity (uint64_t)MediaInfo.dki_lbsize;
1179	return VINF_SUCCESS;
1180	}
1181	return RTFileSeek(pThis->FileDevice, 0, RTFILE_SEEK_END, pcb);
1182
1183	#elif defined(RT_OS_WINDOWS)
1184	/* use NT api, retry a few times if the media is being verified. */
1185	IO_STATUS_BLOCK IoStatusBlock = {0};
1186	FILE_FS_SIZE_INFORMATION FsSize= {0};
1187	NTSTATUS rcNt = NtQueryVolumeInformationFile((HANDLE)pThis->FileDevice, &IoStatusBlock,
1188	&FsSize, sizeof(FsSize), FileFsSizeInformation);
1189	int cRetries = 5;
1190	while (rcNt == STATUS_VERIFY_REQUIRED && cRetries-- > 0)
1191	{
1192	RTThreadSleep(10);
1193	rcNt = NtQueryVolumeInformationFile((HANDLE)pThis->FileDevice, &IoStatusBlock,
1194	&FsSize, sizeof(FsSize), FileFsSizeInformation);
1195	}
1196	if (rcNt >= 0)
1197	{
1198	pcb = FsSize.TotalAllocationUnits.QuadPart FsSize.BytesPerSector;
1199	return VINF_SUCCESS;
1200	}
1201
1202	/* convert nt status code to VBox status code. */
1203	/** @todo Make convertion function!. */
1204	int rc = VERR_GENERAL_FAILURE;
1205	switch (rcNt)
1206	{
1207	case STATUS_NO_MEDIA_IN_DEVICE: rc = VERR_MEDIA_NOT_PRESENT; break;
1208	case STATUS_VERIFY_REQUIRED: rc = VERR_TRY_AGAIN; break;
1209	}
1210	LogFlow(("drvHostBaseGetMediaSize: NtQueryVolumeInformationFile -> %#lx\n", rcNt, rc));
1211	return rc;
1212	#else
1213	return RTFileSeek(pThis->FileDevice, 0, RTFILE_SEEK_END, pcb);
1214	#endif
1215	}
1216
1217
1218	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_FREEBSD)
1219	/**
1220	* Execute a SCSI command.
1221	*
1222	* @param pThis The instance data.
1223	* @param pbCmd Pointer to the SCSI command.
1224	* @param cbCmd The size of the SCSI command.
1225	* @param enmTxDir The transfer direction.
1226	* @param pvBuf The buffer. Can be NULL if enmTxDir is PDMBLOCKTXDIR_NONE.
1227	* @param pcbBuf Where to get the buffer size from and put the actual transfer size. Can be NULL.
1228	* @param pbSense Where to put the sense data. Can be NULL.
1229	* @param cbSense Size of the sense data buffer.
1230	* @param cTimeoutMillies The timeout. 0 mean the default timeout.
1231	*
1232	* @returns VINF_SUCCESS on success (no sense code).
1233	* @returns VERR_UNRESOLVED_ERROR if sense code is present.
1234	* @returns Some other VBox status code on failures without sense code.
1235	*
1236	* @todo Fix VERR_UNRESOLVED_ERROR abuse.
1237	*/
1238	DECLCALLBACK(int) DRVHostBaseScsiCmd(PDRVHOSTBASE pThis, const uint8_t *pbCmd, size_t cbCmd, PDMBLOCKTXDIR enmTxDir,
1239	void pvBuf, uint32_t pcbBuf, uint8_t *pbSense, size_t cbSense, uint32_t cTimeoutMillies)
1240	{
1241	/*
1242	* Minimal input validation.
1243	*/
1244	Assert(enmTxDir == PDMBLOCKTXDIR_NONE \|\| enmTxDir == PDMBLOCKTXDIR_FROM_DEVICE \|\| enmTxDir == PDMBLOCKTXDIR_TO_DEVICE);
1245	Assert(!pvBuf \|\| pcbBuf);
1246	Assert(pvBuf \|\| enmTxDir == PDMBLOCKTXDIR_NONE);
1247	Assert(pbSense \|\| !cbSense);
1248	AssertPtr(pbCmd);
1249	Assert(cbCmd <= 16 && cbCmd >= 1);
1250	const uint32_t cbBuf = pcbBuf ? *pcbBuf : 0;
1251	if (pcbBuf)
1252	*pcbBuf = 0;
1253
1254	# ifdef RT_OS_DARWIN
1255	Assert(pThis->ppScsiTaskDI);
1256
1257	int rc = VERR_GENERAL_FAILURE;
1258	SCSITaskInterface *ppScsiTaskI = (pThis->ppScsiTaskDI)->CreateSCSITask(pThis->ppScsiTaskDI);
1259	if (!ppScsiTaskI)
1260	return VERR_NO_MEMORY;
1261	do
1262	{
1263	/* Setup the scsi command. */
1264	SCSICommandDescriptorBlock cdb = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
1265	memcpy(&cdb[0], pbCmd, cbCmd);
1266	IOReturn irc = (*ppScsiTaskI)->SetCommandDescriptorBlock(ppScsiTaskI, cdb, cbCmd);
1267	AssertBreak(irc == kIOReturnSuccess);
1268
1269	/* Setup the buffer. */
1270	if (enmTxDir == PDMBLOCKTXDIR_NONE)
1271	irc = (*ppScsiTaskI)->SetScatterGatherEntries(ppScsiTaskI, NULL, 0, 0, kSCSIDataTransfer_NoDataTransfer);
1272	else
1273	{
1274	IOVirtualRange Range = { (IOVirtualAddress)pvBuf, cbBuf };
1275	irc = (*ppScsiTaskI)->SetScatterGatherEntries(ppScsiTaskI, &Range, 1, cbBuf,
1276	enmTxDir == PDMBLOCKTXDIR_FROM_DEVICE
1277	? kSCSIDataTransfer_FromTargetToInitiator
1278	: kSCSIDataTransfer_FromInitiatorToTarget);
1279	}
1280	AssertBreak(irc == kIOReturnSuccess);
1281
1282	/* Set the timeout. */
1283	irc = (ppScsiTaskI)->SetTimeoutDuration(ppScsiTaskI, cTimeoutMillies ? cTimeoutMillies : 30000 /ms*/);
1284	AssertBreak(irc == kIOReturnSuccess);
1285
1286	/* Execute the command and get the response. */
1287	SCSI_Sense_Data SenseData = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
1288	SCSIServiceResponse ServiceResponse = kSCSIServiceResponse_Request_In_Process;
1289	SCSITaskStatus TaskStatus = kSCSITaskStatus_GOOD;
1290	UInt64 cbReturned = 0;
1291	irc = (*ppScsiTaskI)->ExecuteTaskSync(ppScsiTaskI, &SenseData, &TaskStatus, &cbReturned);
1292	AssertBreak(irc == kIOReturnSuccess);
1293	if (pcbBuf)
1294	*pcbBuf = (int32_t)cbReturned;
1295
1296	irc = (*ppScsiTaskI)->GetSCSIServiceResponse(ppScsiTaskI, &ServiceResponse);
1297	AssertBreak(irc == kIOReturnSuccess);
1298	AssertBreak(ServiceResponse == kSCSIServiceResponse_TASK_COMPLETE);
1299
1300	if (TaskStatus == kSCSITaskStatus_GOOD)
1301	rc = VINF_SUCCESS;
1302	else if ( TaskStatus == kSCSITaskStatus_CHECK_CONDITION
1303	&& pbSense)
1304	{
1305	memset(pbSense, 0, cbSense); /* lazy */
1306	memcpy(pbSense, &SenseData, RT_MIN(sizeof(SenseData), cbSense));
1307	rc = VERR_UNRESOLVED_ERROR;
1308	}
1309	/** @todo convert sense codes when caller doesn't wish to do this himself. */
1310	/*else if ( TaskStatus == kSCSITaskStatus_CHECK_CONDITION
1311	&& SenseData.ADDITIONAL_SENSE_CODE == 0x3A)
1312	rc = VERR_MEDIA_NOT_PRESENT; */
1313	else
1314	{
1315	rc = enmTxDir == PDMBLOCKTXDIR_NONE
1316	? VERR_DEV_IO_ERROR
1317	: enmTxDir == PDMBLOCKTXDIR_FROM_DEVICE
1318	? VERR_READ_ERROR
1319	: VERR_WRITE_ERROR;
1320	if (pThis->cLogRelErrors++ < 10)
1321	LogRel(("DVD scsi error: cmd={%.*Rhxs} TaskStatus=%#x key=%#x ASC=%#x ASCQ=%#x (%Rrc)\n",
1322	cbCmd, pbCmd, TaskStatus, SenseData.SENSE_KEY, SenseData.ADDITIONAL_SENSE_CODE,
1323	SenseData.ADDITIONAL_SENSE_CODE_QUALIFIER, rc));
1324	}
1325	} while (0);
1326
1327	(*ppScsiTaskI)->Release(ppScsiTaskI);
1328
1329	# elif defined(RT_OS_FREEBSD)
1330	int rc = VINF_SUCCESS;
1331	int rcBSD = 0;
1332	union ccb DeviceCCB;
1333	union ccb *pDeviceCCB = &DeviceCCB;
1334	u_int32_t fFlags;
1335
1336	memset(pDeviceCCB, 0, sizeof(DeviceCCB));
1337	pDeviceCCB->ccb_h.path_id = pThis->ScsiBus;
1338	pDeviceCCB->ccb_h.target_id = pThis->ScsiTargetID;
1339	pDeviceCCB->ccb_h.target_lun = pThis->ScsiLunID;
1340
1341	/* The SCSI INQUIRY command can't be passed through directly. */
1342	if (pbCmd[0] == SCSI_INQUIRY)
1343	{
1344	pDeviceCCB->ccb_h.func_code = XPT_GDEV_TYPE;
1345
1346	rcBSD = ioctl(pThis->FileDevice, CAMIOCOMMAND, pDeviceCCB);
1347	if (!rcBSD)
1348	{
1349	uint32_t cbCopy = cbBuf < sizeof(struct scsi_inquiry_data)
1350	? cbBuf
1351	: sizeof(struct scsi_inquiry_data);;
1352	memcpy(pvBuf, &pDeviceCCB->cgd.inq_data, cbCopy);
1353	memset(pbSense, 0, cbSense);
1354
1355	if (pcbBuf)
1356	*pcbBuf = cbCopy;
1357	}
1358	else
1359	rc = RTErrConvertFromErrno(errno);
1360	}
1361	else
1362	{
1363	/* Copy the CDB. */
1364	memcpy(&pDeviceCCB->csio.cdb_io.cdb_bytes, pbCmd, cbCmd);
1365
1366	/* Set direction. */
1367	if (enmTxDir == PDMBLOCKTXDIR_NONE)
1368	fFlags = CAM_DIR_NONE;
1369	else if (enmTxDir == PDMBLOCKTXDIR_FROM_DEVICE)
1370	fFlags = CAM_DIR_IN;
1371	else
1372	fFlags = CAM_DIR_OUT;
1373
1374	fFlags \|= CAM_DEV_QFRZDIS;
1375
1376	cam_fill_csio(&pDeviceCCB->csio, 1, NULL, fFlags, MSG_SIMPLE_Q_TAG,
1377	(u_int8_t *)pvBuf, cbBuf, cbSense, cbCmd,
1378	cTimeoutMillies ? cTimeoutMillies : 30000/* timeout */);
1379
1380	/* Send command */
1381	rcBSD = ioctl(pThis->FileDevice, CAMIOCOMMAND, pDeviceCCB);
1382	if (!rcBSD)
1383	{
1384	switch (pDeviceCCB->ccb_h.status & CAM_STATUS_MASK)
1385	{
1386	case CAM_REQ_CMP:
1387	rc = VINF_SUCCESS;
1388	break;
1389	case CAM_SEL_TIMEOUT:
1390	rc = VERR_DEV_IO_ERROR;
1391	break;
1392	case CAM_CMD_TIMEOUT:
1393	rc = VERR_TIMEOUT;
1394	break;
1395	default:
1396	rc = VERR_DEV_IO_ERROR;
1397	}
1398
1399	if (pcbBuf)
1400	*pcbBuf = cbBuf - pDeviceCCB->csio.resid;
1401
1402	if (pbSense)
1403	memcpy(pbSense, &pDeviceCCB->csio.sense_data,
1404	cbSense - pDeviceCCB->csio.sense_resid);
1405	}
1406	else
1407	rc = RTErrConvertFromErrno(errno);
1408	}
1409	# endif
1410
1411	return rc;
1412	}
1413	#endif
1414
1415
1416	/**
1417	* Media present.
1418	* Query the size and notify the above driver / device.
1419	*
1420	* @param pThis The instance data.
1421	*/
1422	int DRVHostBaseMediaPresent(PDRVHOSTBASE pThis)
1423	{
1424	/*
1425	* Open the drive.
1426	*/
1427	int rc = drvHostBaseReopen(pThis);
1428	if (RT_FAILURE(rc))
1429	return rc;
1430
1431	/*
1432	* Determine the size.
1433	*/
1434	uint64_t cb;
1435	rc = pThis->pfnGetMediaSize(pThis, &cb);
1436	if (RT_FAILURE(rc))
1437	{
1438	LogFlow(("%s-%d: failed to figure media size of %s, rc=%Rrc\n",
1439	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->pszDevice, rc));
1440	return rc;
1441	}
1442
1443	/*
1444	* Update the data and inform the unit.
1445	*/
1446	pThis->cbSize = cb;
1447	pThis->fMediaPresent = true;
1448	if (pThis->pDrvMountNotify)
1449	pThis->pDrvMountNotify->pfnMountNotify(pThis->pDrvMountNotify);
1450	LogFlow(("%s-%d: drvHostBaseMediaPresent: cbSize=%lld (%#llx)\n",
1451	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->cbSize, pThis->cbSize));
1452	return VINF_SUCCESS;
1453	}
1454
1455
1456	/**
1457	* Media no longer present.
1458	* @param pThis The instance data.
1459	*/
1460	void DRVHostBaseMediaNotPresent(PDRVHOSTBASE pThis)
1461	{
1462	pThis->fMediaPresent = false;
1463	pThis->fLocked = false;
1464	pThis->PCHSGeometry.cCylinders = 0;
1465	pThis->PCHSGeometry.cHeads = 0;
1466	pThis->PCHSGeometry.cSectors = 0;
1467	pThis->LCHSGeometry.cCylinders = 0;
1468	pThis->LCHSGeometry.cHeads = 0;
1469	pThis->LCHSGeometry.cSectors = 0;
1470	if (pThis->pDrvMountNotify)
1471	pThis->pDrvMountNotify->pfnUnmountNotify(pThis->pDrvMountNotify);
1472	}
1473
1474
1475	#ifdef RT_OS_WINDOWS
1476
1477	/**
1478	* Window procedure for the invisible window used to catch the WM_DEVICECHANGE broadcasts.
1479	*/
1480	static LRESULT CALLBACK DeviceChangeWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1481	{
1482	Log2(("DeviceChangeWindowProc: hwnd=%08x uMsg=%08x\n", hwnd, uMsg));
1483	if (uMsg == WM_DESTROY)
1484	{
1485	PDRVHOSTBASE pThis = (PDRVHOSTBASE)GetWindowLong(hwnd, GWLP_USERDATA);
1486	if (pThis)
1487	ASMAtomicXchgSize(&pThis->hwndDeviceChange, NULL);
1488	PostQuitMessage(0);
1489	}
1490
1491	if (uMsg != WM_DEVICECHANGE)
1492	return DefWindowProc(hwnd, uMsg, wParam, lParam);
1493
1494	PDEV_BROADCAST_HDR lpdb = (PDEV_BROADCAST_HDR)lParam;
1495	PDRVHOSTBASE pThis = (PDRVHOSTBASE)GetWindowLongPtr(hwnd, GWLP_USERDATA);
1496	Assert(pThis);
1497	if (pThis == NULL)
1498	return 0;
1499
1500	switch (wParam)
1501	{
1502	case DBT_DEVICEARRIVAL:
1503	case DBT_DEVICEREMOVECOMPLETE:
1504	// Check whether a CD or DVD was inserted into or removed from a drive.
1505	if (lpdb->dbch_devicetype == DBT_DEVTYP_VOLUME)
1506	{
1507	PDEV_BROADCAST_VOLUME lpdbv = (PDEV_BROADCAST_VOLUME)lpdb;
1508	if ( (lpdbv->dbcv_flags & DBTF_MEDIA)
1509	&& (pThis->fUnitMask & lpdbv->dbcv_unitmask))
1510	{
1511	RTCritSectEnter(&pThis->CritSect);
1512	if (wParam == DBT_DEVICEARRIVAL)
1513	{
1514	int cRetries = 10;
1515	int rc = DRVHostBaseMediaPresent(pThis);
1516	while (RT_FAILURE(rc) && cRetries-- > 0)
1517	{
1518	RTThreadSleep(50);
1519	rc = DRVHostBaseMediaPresent(pThis);
1520	}
1521	}
1522	else
1523	DRVHostBaseMediaNotPresent(pThis);
1524	RTCritSectLeave(&pThis->CritSect);
1525	}
1526	}
1527	break;
1528	}
1529	return TRUE;
1530	}
1531
1532	#endif /* RT_OS_WINDOWS */
1533
1534
1535	/**
1536	* This thread will periodically poll the device for media presence.
1537	*
1538	* @returns Ignored.
1539	* @param ThreadSelf Handle of this thread. Ignored.
1540	* @param pvUser Pointer to the driver instance structure.
1541	*/
1542	static DECLCALLBACK(int) drvHostBaseMediaThread(RTTHREAD ThreadSelf, void *pvUser)
1543	{
1544	PDRVHOSTBASE pThis = (PDRVHOSTBASE)pvUser;
1545	LogFlow(("%s-%d: drvHostBaseMediaThread: ThreadSelf=%p pvUser=%p\n",
1546	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, ThreadSelf, pvUser));
1547	#ifdef RT_OS_WINDOWS
1548	static WNDCLASS s_classDeviceChange = {0};
1549	static ATOM s_hAtomDeviceChange = 0;
1550
1551	/*
1552	* Register custom window class.
1553	*/
1554	if (s_hAtomDeviceChange == 0)
1555	{
1556	memset(&s_classDeviceChange, 0, sizeof(s_classDeviceChange));
1557	s_classDeviceChange.lpfnWndProc = DeviceChangeWindowProc;
1558	s_classDeviceChange.lpszClassName = "VBOX_DeviceChangeClass";
1559	s_classDeviceChange.hInstance = GetModuleHandle("VBOXDD.DLL");
1560	Assert(s_classDeviceChange.hInstance);
1561	s_hAtomDeviceChange = RegisterClassA(&s_classDeviceChange);
1562	Assert(s_hAtomDeviceChange);
1563	}
1564
1565	/*
1566	* Create Window w/ the pThis as user data.
1567	*/
1568	HWND hwnd = CreateWindow((LPCTSTR)s_hAtomDeviceChange, "", WS_POPUP, 0, 0, 0, 0, 0, 0, s_classDeviceChange.hInstance, 0);
1569	AssertMsg(hwnd, ("CreateWindow failed with %d\n", GetLastError()));
1570	SetWindowLongPtr(hwnd, GWLP_USERDATA, (LONG_PTR)pThis);
1571
1572	/*
1573	* Signal the waiting EMT thread that everything went fine.
1574	*/
1575	ASMAtomicXchgSize(&pThis->hwndDeviceChange, hwnd);
1576	RTThreadUserSignal(ThreadSelf);
1577	if (!hwnd)
1578	{
1579	LogFlow(("%s-%d: drvHostBaseMediaThread: returns VERR_GENERAL_FAILURE\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance));
1580	return VERR_GENERAL_FAILURE;
1581	}
1582	LogFlow(("%s-%d: drvHostBaseMediaThread: Created hwndDeviceChange=%p\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, hwnd));
1583
1584	/*
1585	* Message pump.
1586	*/
1587	MSG Msg;
1588	BOOL fRet;
1589	while ((fRet = GetMessage(&Msg, NULL, 0, 0)) != FALSE)
1590	{
1591	if (fRet != -1)
1592	{
1593	TranslateMessage(&Msg);
1594	DispatchMessage(&Msg);
1595	}
1596	//else: handle the error and possibly exit
1597	}
1598	Assert(!pThis->hwndDeviceChange);
1599
1600	#else /* !RT_OS_WINDOWS */
1601	bool fFirst = true;
1602	int cRetries = 10;
1603	while (!pThis->fShutdownPoller)
1604	{
1605	/*
1606	* Perform the polling (unless we've run out of 50ms retries).
1607	*/
1608	if ( pThis->pfnPoll
1609	&& cRetries-- > 0)
1610	{
1611
1612	int rc = pThis->pfnPoll(pThis);
1613	if (RT_FAILURE(rc))
1614	{
1615	RTSemEventWait(pThis->EventPoller, 50);
1616	continue;
1617	}
1618	}
1619
1620	/*
1621	* Signal EMT after the first go.
1622	*/
1623	if (fFirst)
1624	{
1625	RTThreadUserSignal(ThreadSelf);
1626	fFirst = false;
1627	}
1628
1629	/*
1630	* Sleep.
1631	*/
1632	int rc = RTSemEventWait(pThis->EventPoller, pThis->cMilliesPoller);
1633	if ( RT_FAILURE(rc)
1634	&& rc != VERR_TIMEOUT)
1635	{
1636	AssertMsgFailed(("rc=%Rrc\n", rc));
1637	pThis->ThreadPoller = NIL_RTTHREAD;
1638	LogFlow(("drvHostBaseMediaThread: returns %Rrc\n", rc));
1639	return rc;
1640	}
1641	cRetries = 10;
1642	}
1643
1644	#endif /* !RT_OS_WINDOWS */
1645
1646	/* (Don't clear the thread handle here, the destructor thread is using it to wait.) */
1647	LogFlow(("%s-%d: drvHostBaseMediaThread: returns VINF_SUCCESS\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance));
1648	return VINF_SUCCESS;
1649	}
1650
1651	/* -=-=-=-=- driver interface -=-=-=-=- */
1652
1653
1654	/**
1655	* Done state load operation.
1656	*
1657	* @returns VBox load code.
1658	* @param pDrvIns Driver instance of the driver which registered the data unit.
1659	* @param pSSM SSM operation handle.
1660	*/
1661	static DECLCALLBACK(int) drvHostBaseLoadDone(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM)
1662	{
1663	PDRVHOSTBASE pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTBASE);
1664	LogFlow(("%s-%d: drvHostBaseMediaThread:\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance));
1665	RTCritSectEnter(&pThis->CritSect);
1666
1667	/*
1668	* Tell the device/driver above us that the media status is uncertain.
1669	*/
1670	if (pThis->pDrvMountNotify)
1671	{
1672	pThis->pDrvMountNotify->pfnUnmountNotify(pThis->pDrvMountNotify);
1673	if (pThis->fMediaPresent)
1674	pThis->pDrvMountNotify->pfnMountNotify(pThis->pDrvMountNotify);
1675	}
1676
1677	RTCritSectLeave(&pThis->CritSect);
1678	return VINF_SUCCESS;
1679	}
1680
1681
1682	/** @copydoc FNPDMDRVDESTRUCT */
1683	DECLCALLBACK(void) DRVHostBaseDestruct(PPDMDRVINS pDrvIns)
1684	{
1685	PDRVHOSTBASE pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTBASE);
1686	LogFlow(("%s-%d: drvHostBaseDestruct: iInstance=%d\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, pDrvIns->iInstance));
1687
1688	/*
1689	* Terminate the thread.
1690	*/
1691	if (pThis->ThreadPoller != NIL_RTTHREAD)
1692	{
1693	pThis->fShutdownPoller = true;
1694	int rc;
1695	int cTimes = 50;
1696	do
1697	{
1698	#ifdef RT_OS_WINDOWS
1699	if (pThis->hwndDeviceChange)
1700	PostMessage(pThis->hwndDeviceChange, WM_CLOSE, 0, 0); /* default win proc will destroy the window */
1701	#else
1702	RTSemEventSignal(pThis->EventPoller);
1703	#endif
1704	rc = RTThreadWait(pThis->ThreadPoller, 100, NULL);
1705	} while (cTimes-- > 0 && rc == VERR_TIMEOUT);
1706
1707	if (!rc)
1708	pThis->ThreadPoller = NIL_RTTHREAD;
1709	}
1710
1711	/*
1712	* Unlock the drive if we've locked it or we're in passthru mode.
1713	*/
1714	#ifdef RT_OS_DARWIN
1715	if ( ( pThis->fLocked
1716	\|\| pThis->IBlock.pfnSendCmd)
1717	&& pThis->ppScsiTaskDI
1718	#else /** @todo Check if the other guys can mix pfnDoLock with scsi passthru.
1719	* (We're currently not unlocking the device after use. See todo in DevATA.cpp.) */
1720	if ( pThis->fLocked
1721	&& pThis->FileDevice != NIL_RTFILE
1722	#endif
1723	&& pThis->pfnDoLock)
1724	{
1725	int rc = pThis->pfnDoLock(pThis, false);
1726	if (RT_SUCCESS(rc))
1727	pThis->fLocked = false;
1728	}
1729
1730	/*
1731	* Cleanup the other resources.
1732	*/
1733	#ifdef RT_OS_WINDOWS
1734	if (pThis->hwndDeviceChange)
1735	{
1736	if (SetWindowLongPtr(pThis->hwndDeviceChange, GWLP_USERDATA, 0) == (LONG_PTR)pThis)
1737	PostMessage(pThis->hwndDeviceChange, WM_CLOSE, 0, 0); /* default win proc will destroy the window */
1738	pThis->hwndDeviceChange = NULL;
1739	}
1740	#else
1741	if (pThis->EventPoller != NULL)
1742	{
1743	RTSemEventDestroy(pThis->EventPoller);
1744	pThis->EventPoller = NULL;
1745	}
1746	#endif
1747
1748	#ifdef RT_OS_DARWIN
1749	/*
1750	* The unclaiming doesn't seem to mean much, the DVD is actaully
1751	* remounted when we release exclusive access. I'm not quite sure
1752	* if I should put the unclaim first or not...
1753	*
1754	* Anyway, that it's automatically remounted very good news for us,
1755	* because that means we don't have to mess with that ourselves. Of
1756	* course there is the unlikely scenario that we've succeeded in claiming
1757	* and umount the DVD but somehow failed to gain exclusive scsi access...
1758	*/
1759	if (pThis->ppScsiTaskDI)
1760	{
1761	LogFlow(("%s-%d: releasing exclusive scsi access!\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
1762	(*pThis->ppScsiTaskDI)->ReleaseExclusiveAccess(pThis->ppScsiTaskDI);
1763	(*pThis->ppScsiTaskDI)->Release(pThis->ppScsiTaskDI);
1764	pThis->ppScsiTaskDI = NULL;
1765	}
1766	if (pThis->pDADisk)
1767	{
1768	LogFlow(("%s-%d: unclaiming the disk!\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
1769	DADiskUnclaim(pThis->pDADisk);
1770	CFRelease(pThis->pDADisk);
1771	pThis->pDADisk = NULL;
1772	}
1773	if (pThis->ppMMCDI)
1774	{
1775	LogFlow(("%s-%d: releasing the MMC object!\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
1776	(*pThis->ppMMCDI)->Release(pThis->ppMMCDI);
1777	pThis->ppMMCDI = NULL;
1778	}
1779	if (pThis->MasterPort)
1780	{
1781	mach_port_deallocate(mach_task_self(), pThis->MasterPort);
1782	pThis->MasterPort = NULL;
1783	}
1784	if (pThis->pDASession)
1785	{
1786	LogFlow(("%s-%d: releasing the DA session!\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
1787	CFRelease(pThis->pDASession);
1788	pThis->pDASession = NULL;
1789	}
1790	#else
1791	if (pThis->FileDevice != NIL_RTFILE)
1792	{
1793	int rc = RTFileClose(pThis->FileDevice);
1794	AssertRC(rc);
1795	pThis->FileDevice = NIL_RTFILE;
1796	}
1797	#endif
1798
1799	#ifdef RT_OS_SOLARIS
1800	if (pThis->FileRawDevice != NIL_RTFILE)
1801	{
1802	int rc = RTFileClose(pThis->FileRawDevice);
1803	AssertRC(rc);
1804	pThis->FileRawDevice = NIL_RTFILE;
1805	}
1806
1807	if (pThis->pszRawDeviceOpen)
1808	{
1809	RTStrFree(pThis->pszRawDeviceOpen);
1810	pThis->pszRawDeviceOpen = NULL;
1811	}
1812	#endif
1813
1814	if (pThis->pszDevice)
1815	{
1816	MMR3HeapFree(pThis->pszDevice);
1817	pThis->pszDevice = NULL;
1818	}
1819
1820	if (pThis->pszDeviceOpen)
1821	{
1822	RTStrFree(pThis->pszDeviceOpen);
1823	pThis->pszDeviceOpen = NULL;
1824	}
1825
1826	/* Forget about the notifications. */
1827	pThis->pDrvMountNotify = NULL;
1828
1829	/* Leave the instance operational if this is just a cleanup of the state
1830	* after an attach error happened. So don't destry the critsect then. */
1831	if (!pThis->fKeepInstance && RTCritSectIsInitialized(&pThis->CritSect))
1832	RTCritSectDelete(&pThis->CritSect);
1833	LogFlow(("%s-%d: drvHostBaseDestruct completed\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
1834	}
1835
1836
1837	/**
1838	* Initializes the instance data (init part 1).
1839	*
1840	* The driver which derives from this base driver will override function pointers after
1841	* calling this method, and complete the construction by calling DRVHostBaseInitFinish().
1842	*
1843	* On failure call DRVHostBaseDestruct().
1844	*
1845	* @returns VBox status code.
1846	* @param pDrvIns Driver instance.
1847	* @param pCfgHandle Configuration handle.
1848	* @param enmType Device type.
1849	*/
1850	int DRVHostBaseInitData(PPDMDRVINS pDrvIns, PCFGMNODE pCfgHandle, PDMBLOCKTYPE enmType)
1851	{
1852	PDRVHOSTBASE pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTBASE);
1853	LogFlow(("%s-%d: DRVHostBaseInitData: iInstance=%d\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, pDrvIns->iInstance));
1854
1855	/*
1856	* Initialize most of the data members.
1857	*/
1858	pThis->pDrvIns = pDrvIns;
1859	pThis->fKeepInstance = false;
1860	pThis->ThreadPoller = NIL_RTTHREAD;
1861	#ifdef RT_OS_DARWIN
1862	pThis->MasterPort = NULL;
1863	pThis->ppMMCDI = NULL;
1864	pThis->ppScsiTaskDI = NULL;
1865	pThis->cbBlock = 0;
1866	pThis->pDADisk = NULL;
1867	pThis->pDASession = NULL;
1868	#else
1869	pThis->FileDevice = NIL_RTFILE;
1870	#endif
1871	#ifdef RT_OS_SOLARIS
1872	pThis->FileRawDevice = NIL_RTFILE;
1873	#endif
1874	pThis->enmType = enmType;
1875	//pThis->cErrors = 0;
1876
1877	pThis->pfnGetMediaSize = drvHostBaseGetMediaSize;
1878
1879	/* IBase. */
1880	pDrvIns->IBase.pfnQueryInterface = drvHostBaseQueryInterface;
1881
1882	/* IBlock. */
1883	pThis->IBlock.pfnRead = drvHostBaseRead;
1884	pThis->IBlock.pfnWrite = drvHostBaseWrite;
1885	pThis->IBlock.pfnFlush = drvHostBaseFlush;
1886	pThis->IBlock.pfnIsReadOnly = drvHostBaseIsReadOnly;
1887	pThis->IBlock.pfnGetSize = drvHostBaseGetSize;
1888	pThis->IBlock.pfnGetType = drvHostBaseGetType;
1889	pThis->IBlock.pfnGetUuid = drvHostBaseGetUuid;
1890
1891	/* IBlockBios. */
1892	pThis->IBlockBios.pfnGetPCHSGeometry = drvHostBaseGetPCHSGeometry;
1893	pThis->IBlockBios.pfnSetPCHSGeometry = drvHostBaseSetPCHSGeometry;
1894	pThis->IBlockBios.pfnGetLCHSGeometry = drvHostBaseGetLCHSGeometry;
1895	pThis->IBlockBios.pfnSetLCHSGeometry = drvHostBaseSetLCHSGeometry;
1896	pThis->IBlockBios.pfnIsVisible = drvHostBaseIsVisible;
1897	pThis->IBlockBios.pfnGetType = drvHostBaseBiosGetType;
1898
1899	/* IMount. */
1900	pThis->IMount.pfnMount = drvHostBaseMount;
1901	pThis->IMount.pfnUnmount = drvHostBaseUnmount;
1902	pThis->IMount.pfnIsMounted = drvHostBaseIsMounted;
1903	pThis->IMount.pfnLock = drvHostBaseLock;
1904	pThis->IMount.pfnUnlock = drvHostBaseUnlock;
1905	pThis->IMount.pfnIsLocked = drvHostBaseIsLocked;
1906
1907	/*
1908	* Get the IBlockPort & IMountNotify interfaces of the above driver/device.
1909	*/
1910	pThis->pDrvBlockPort = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMIBLOCKPORT);
1911	if (!pThis->pDrvBlockPort)
1912	{
1913	AssertMsgFailed(("Configuration error: No block port interface above!\n"));
1914	return VERR_PDM_MISSING_INTERFACE_ABOVE;
1915	}
1916	pThis->pDrvMountNotify = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMIMOUNTNOTIFY);
1917
1918	/*
1919	* Query configuration.
1920	*/
1921	/* Device */
1922	int rc = CFGMR3QueryStringAlloc(pCfgHandle, "Path", &pThis->pszDevice);
1923	if (RT_FAILURE(rc))
1924	{
1925	AssertMsgFailed(("Configuration error: query for \"Path\" string returned %Rra.\n", rc));
1926	return rc;
1927	}
1928
1929	/* Mountable */
1930	uint32_t u32;
1931	rc = CFGMR3QueryU32(pCfgHandle, "Interval", &u32);
1932	if (RT_SUCCESS(rc))
1933	pThis->cMilliesPoller = u32;
1934	else if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1935	pThis->cMilliesPoller = 1000;
1936	else if (RT_FAILURE(rc))
1937	{
1938	AssertMsgFailed(("Configuration error: Query \"Mountable\" resulted in %Rrc.\n", rc));
1939	return rc;
1940	}
1941
1942	/* ReadOnly */
1943	rc = CFGMR3QueryBool(pCfgHandle, "ReadOnly", &pThis->fReadOnlyConfig);
1944	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1945	pThis->fReadOnlyConfig = enmType == PDMBLOCKTYPE_DVD \|\| enmType == PDMBLOCKTYPE_CDROM ? true : false;
1946	else if (RT_FAILURE(rc))
1947	{
1948	AssertMsgFailed(("Configuration error: Query \"ReadOnly\" resulted in %Rrc.\n", rc));
1949	return rc;
1950	}
1951
1952	/* Locked */
1953	rc = CFGMR3QueryBool(pCfgHandle, "Locked", &pThis->fLocked);
1954	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1955	pThis->fLocked = false;
1956	else if (RT_FAILURE(rc))
1957	{
1958	AssertMsgFailed(("Configuration error: Query \"Locked\" resulted in %Rrc.\n", rc));
1959	return rc;
1960	}
1961
1962	/* BIOS visible */
1963	rc = CFGMR3QueryBool(pCfgHandle, "BIOSVisible", &pThis->fBiosVisible);
1964	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1965	pThis->fBiosVisible = true;
1966	else if (RT_FAILURE(rc))
1967	{
1968	AssertMsgFailed(("Configuration error: Query \"BIOSVisible\" resulted in %Rrc.\n", rc));
1969	return rc;
1970	}
1971
1972	/* Uuid */
1973	char *psz;
1974	rc = CFGMR3QueryStringAlloc(pCfgHandle, "Uuid", &psz);
1975	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1976	RTUuidClear(&pThis->Uuid);
1977	else if (RT_SUCCESS(rc))
1978	{
1979	rc = RTUuidFromStr(&pThis->Uuid, psz);
1980	if (RT_FAILURE(rc))
1981	{
1982	AssertMsgFailed(("Configuration error: Uuid from string failed on \"%s\", rc=%Rrc.\n", psz, rc));
1983	MMR3HeapFree(psz);
1984	return rc;
1985	}
1986	MMR3HeapFree(psz);
1987	}
1988	else
1989	{
1990	AssertMsgFailed(("Configuration error: Failed to obtain the uuid, rc=%Rrc.\n", rc));
1991	return rc;
1992	}
1993
1994	/* Define whether attach failure is an error (default) or not. */
1995	bool fAttachFailError;
1996	rc = CFGMR3QueryBool(pCfgHandle, "AttachFailError", &fAttachFailError);
1997	if (RT_FAILURE(rc))
1998	fAttachFailError = true;
1999	pThis->fAttachFailError = fAttachFailError;
2000
2001	/* name to open & watch for */
2002	#ifdef RT_OS_WINDOWS
2003	int iBit = RT_C_TO_UPPER(pThis->pszDevice[0]) - 'A';
2004	if ( iBit > 'Z' - 'A'
2005	\|\| pThis->pszDevice[1] != ':'
2006	\|\| pThis->pszDevice[2])
2007	{
2008	AssertMsgFailed(("Configuration error: Invalid drive specification: '%s'\n", pThis->pszDevice));
2009	return VERR_INVALID_PARAMETER;
2010	}
2011	pThis->fUnitMask = 1 << iBit;
2012	RTStrAPrintf(&pThis->pszDeviceOpen, "\\\\.\\%s", pThis->pszDevice);
2013
2014	#elif defined(RT_OS_SOLARIS)
2015	char *pszBlockDevName = getfullblkname(pThis->pszDevice);
2016	if (!pszBlockDevName)
2017	return VERR_NO_MEMORY;
2018	pThis->pszDeviceOpen = RTStrDup(pszBlockDevName); /* for RTStrFree() */
2019	free(pszBlockDevName);
2020	pThis->pszRawDeviceOpen = RTStrDup(pThis->pszDevice);
2021
2022	#else
2023	pThis->pszDeviceOpen = RTStrDup(pThis->pszDevice);
2024	#endif
2025
2026	if (!pThis->pszDeviceOpen)
2027	return VERR_NO_MEMORY;
2028
2029	return VINF_SUCCESS;
2030	}
2031
2032
2033	/**
2034	* Do the 2nd part of the init after the derived driver has overridden the defaults.
2035	*
2036	* On failure call DRVHostBaseDestruct().
2037	*
2038	* @returns VBox status code.
2039	* @param pThis Pointer to the instance data.
2040	*/
2041	int DRVHostBaseInitFinish(PDRVHOSTBASE pThis)
2042	{
2043	int src = VINF_SUCCESS;
2044	PPDMDRVINS pDrvIns = pThis->pDrvIns;
2045
2046	/* log config summary */
2047	Log(("%s-%d: pszDevice='%s' (%s) cMilliesPoller=%d fReadOnlyConfig=%d fLocked=%d fBIOSVisible=%d Uuid=%RTuuid\n",
2048	pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, pThis->pszDevice, pThis->pszDeviceOpen, pThis->cMilliesPoller,
2049	pThis->fReadOnlyConfig, pThis->fLocked, pThis->fBiosVisible, &pThis->Uuid));
2050
2051	/*
2052	* Check that there are no drivers below us.
2053	*/
2054	AssertMsgReturn(PDMDrvHlpNoAttach(pDrvIns) == VERR_PDM_NO_ATTACHED_DRIVER,
2055	("Configuration error: Not possible to attach anything to this driver!\n"),
2056	VERR_PDM_DRVINS_NO_ATTACH);
2057
2058	/*
2059	* Register saved state.
2060	*/
2061	int rc = PDMDrvHlpSSMRegisterLoadDone(pDrvIns, drvHostBaseLoadDone);
2062	if (RT_FAILURE(rc))
2063	return rc;
2064
2065	/*
2066	* Verify type.
2067	*/
2068	#ifdef RT_OS_WINDOWS
2069	UINT uDriveType = GetDriveType(pThis->pszDevice);
2070	switch (pThis->enmType)
2071	{
2072	case PDMBLOCKTYPE_FLOPPY_360:
2073	case PDMBLOCKTYPE_FLOPPY_720:
2074	case PDMBLOCKTYPE_FLOPPY_1_20:
2075	case PDMBLOCKTYPE_FLOPPY_1_44:
2076	case PDMBLOCKTYPE_FLOPPY_2_88:
2077	if (uDriveType != DRIVE_REMOVABLE)
2078	{
2079	AssertMsgFailed(("Configuration error: '%s' is not a floppy (type=%d)\n",
2080	pThis->pszDevice, uDriveType));
2081	return VERR_INVALID_PARAMETER;
2082	}
2083	break;
2084	case PDMBLOCKTYPE_CDROM:
2085	case PDMBLOCKTYPE_DVD:
2086	if (uDriveType != DRIVE_CDROM)
2087	{
2088	AssertMsgFailed(("Configuration error: '%s' is not a cdrom (type=%d)\n",
2089	pThis->pszDevice, uDriveType));
2090	return VERR_INVALID_PARAMETER;
2091	}
2092	break;
2093	case PDMBLOCKTYPE_HARD_DISK:
2094	default:
2095	AssertMsgFailed(("enmType=%d\n", pThis->enmType));
2096	return VERR_INVALID_PARAMETER;
2097	}
2098	#endif
2099
2100	/*
2101	* Open the device.
2102	*/
2103	#if defined(RT_OS_DARWIN)
2104	rc = drvHostBaseOpen(pThis, NULL, pThis->fReadOnlyConfig);
2105	#else
2106	rc = drvHostBaseReopen(pThis);
2107	#endif
2108	if (RT_FAILURE(rc))
2109	{
2110	char *pszDevice = pThis->pszDevice;
2111	#ifndef RT_OS_DARWIN
2112	char szPathReal[256];
2113	if ( RTPathExists(pszDevice)
2114	&& RT_SUCCESS(RTPathReal(pszDevice, szPathReal, sizeof(szPathReal))))
2115	pszDevice = szPathReal;
2116	pThis->FileDevice = NIL_RTFILE;
2117	#endif
2118	#ifdef RT_OS_SOLARIS
2119	pThis->FileRawDevice = NIL_RTFILE;
2120	#endif
2121
2122	/*
2123	* Disable CD/DVD passthrough in case it was enabled. Would cause
2124	* weird failures later when the guest issues commands. These would
2125	* all fail because of the invalid file handle. So use the normal
2126	* virtual CD/DVD code, which deals more gracefully with unavailable
2127	* "media" - actually a complete drive in this case.
2128	*/
2129	pThis->IBlock.pfnSendCmd = NULL;
2130	AssertMsgFailed(("Could not open host device %s, rc=%Rrc\n", pszDevice, rc));
2131	switch (rc)
2132	{
2133	case VERR_ACCESS_DENIED:
2134	return PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS,
2135	#ifdef RT_OS_LINUX
2136	N_("Cannot open host device '%s' for %s access. Check the permissions "
2137	"of that device ('/bin/ls -l %s'): Most probably you need to be member "
2138	"of the device group. Make sure that you logout/login after changing "
2139	"the group settings of the current user"),
2140	#else
2141	N_("Cannot open host device '%s' for %s access. Check the permissions "
2142	"of that device"),
2143	#endif
2144	pszDevice, pThis->fReadOnlyConfig ? "readonly" : "read/write",
2145	pszDevice);
2146	default:
2147	{
2148	if (pThis->fAttachFailError)
2149	return rc;
2150	int erc = PDMDrvHlpVMSetRuntimeError(pDrvIns, 0 /fFlags/,
2151	"DrvHost_MOUNTFAIL",
2152	N_("Cannot attach to host device '%s'"), pszDevice);
2153	AssertRC(erc);
2154	src = rc;
2155	}
2156	}
2157	}
2158	#ifdef RT_OS_WINDOWS
2159	if (RT_SUCCESS(src))
2160	DRVHostBaseMediaPresent(pThis);
2161	#endif
2162
2163	/*
2164	* Lock the drive if that's required by the configuration.
2165	*/
2166	if (pThis->fLocked)
2167	{
2168	if (pThis->pfnDoLock)
2169	rc = pThis->pfnDoLock(pThis, true);
2170	if (RT_FAILURE(rc))
2171	{
2172	AssertMsgFailed(("Failed to lock the dvd drive. rc=%Rrc\n", rc));
2173	return rc;
2174	}
2175	}
2176
2177	#ifndef RT_OS_WINDOWS
2178	if (RT_SUCCESS(src))
2179	{
2180	/*
2181	* Create the event semaphore which the poller thread will wait on.
2182	*/
2183	rc = RTSemEventCreate(&pThis->EventPoller);
2184	if (RT_FAILURE(rc))
2185	return rc;
2186	}
2187	#endif
2188
2189	/*
2190	* Initialize the critical section used for serializing the access to the media.
2191	*/
2192	rc = RTCritSectInit(&pThis->CritSect);
2193	if (RT_FAILURE(rc))
2194	return rc;
2195
2196	if (RT_SUCCESS(src))
2197	{
2198	/*
2199	* Start the thread which will poll for the media.
2200	*/
2201	rc = RTThreadCreate(&pThis->ThreadPoller, drvHostBaseMediaThread, pThis, 0,
2202	RTTHREADTYPE_INFREQUENT_POLLER, RTTHREADFLAGS_WAITABLE, "DVDMEDIA");
2203	if (RT_FAILURE(rc))
2204	{
2205	AssertMsgFailed(("Failed to create poller thread. rc=%Rrc\n", rc));
2206	return rc;
2207	}
2208
2209	/*
2210	* Wait for the thread to start up (!w32:) and do one detection loop.
2211	*/
2212	rc = RTThreadUserWait(pThis->ThreadPoller, 10000);
2213	AssertRC(rc);
2214	#ifdef RT_OS_WINDOWS
2215	if (!pThis->hwndDeviceChange)
2216	return VERR_GENERAL_FAILURE;
2217	#endif
2218	}
2219
2220	if (RT_FAILURE(src))
2221	return src;
2222	return rc;
2223	}
2224

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source: vbox/trunk/src/VBox/Devices/Storage/DrvHostBase.cpp@ 25974

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