DrvHostBase.cpp@ 36797

Last change on this file since 36797 was 36797, checked in by vboxsync, 14 years ago
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1	/* $Id: DrvHostBase.cpp 36797 2011-04-21 15:46:31Z vboxsync $ */
2	/** @file
3	* DrvHostBase - Host base drive access driver.
4	*/
5
6	/*
7	* Copyright (C) 2006-2007 Oracle Corporation
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
18
19	/*******************************************************************************
20	* Header Files *
21	*******************************************************************************/
22	#define LOG_GROUP LOG_GROUP_DRV_HOST_BASE
23	#ifdef RT_OS_DARWIN
24	# include <mach/mach.h>
25	# include <Carbon/Carbon.h>
26	# include <IOKit/IOKitLib.h>
27	# include <IOKit/storage/IOStorageDeviceCharacteristics.h>
28	# include <IOKit/scsi/SCSITaskLib.h>
29	# include <IOKit/scsi/SCSICommandOperationCodes.h>
30	# include <IOKit/IOBSD.h>
31	# include <DiskArbitration/DiskArbitration.h>
32	# include <mach/mach_error.h>
33	# include <VBox/scsi.h>
34
35	#elif defined(RT_OS_L4)
36	/* Nothing special requires... yeah, right. */
37
38	#elif defined(RT_OS_LINUX)
39	# include <sys/ioctl.h>
40	# include <sys/fcntl.h>
41	# include <errno.h>
42
43	#elif defined(RT_OS_SOLARIS)
44	# include <fcntl.h>
45	# include <errno.h>
46	# include <stropts.h>
47	# include <malloc.h>
48	# include <sys/dkio.h>
49	extern "C" char getfullblkname(char );
50
51	#elif defined(RT_OS_WINDOWS)
52	# define WIN32_NO_STATUS
53	# include <Windows.h>
54	# include <dbt.h>
55	# undef WIN32_NO_STATUS
56	# include <ntstatus.h>
57
58	/* from ntdef.h */
59	typedef LONG NTSTATUS;
60
61	/* from ntddk.h */
62	typedef struct _IO_STATUS_BLOCK {
63	union {
64	NTSTATUS Status;
65	PVOID Pointer;
66	};
67	ULONG_PTR Information;
68	} IO_STATUS_BLOCK, *PIO_STATUS_BLOCK;
69
70
71	/* from ntinternals.com */
72	typedef enum _FS_INFORMATION_CLASS {
73	FileFsVolumeInformation=1,
74	FileFsLabelInformation,
75	FileFsSizeInformation,
76	FileFsDeviceInformation,
77	FileFsAttributeInformation,
78	FileFsControlInformation,
79	FileFsFullSizeInformation,
80	FileFsObjectIdInformation,
81	FileFsMaximumInformation
82	} FS_INFORMATION_CLASS, *PFS_INFORMATION_CLASS;
83
84	typedef struct _FILE_FS_SIZE_INFORMATION {
85	LARGE_INTEGER TotalAllocationUnits;
86	LARGE_INTEGER AvailableAllocationUnits;
87	ULONG SectorsPerAllocationUnit;
88	ULONG BytesPerSector;
89	} FILE_FS_SIZE_INFORMATION, *PFILE_FS_SIZE_INFORMATION;
90
91	extern "C"
92	NTSTATUS __stdcall NtQueryVolumeInformationFile(
93	/IN/ HANDLE FileHandle,
94	/OUT/ PIO_STATUS_BLOCK IoStatusBlock,
95	/OUT/ PVOID FileSystemInformation,
96	/IN/ ULONG Length,
97	/IN/ FS_INFORMATION_CLASS FileSystemInformationClass );
98
99	#elif defined(RT_OS_FREEBSD)
100	# include <sys/cdefs.h>
101	# include <sys/param.h>
102	# include <errno.h>
103	# include <stdio.h>
104	# include <cam/cam.h>
105	# include <cam/cam_ccb.h>
106	# include <cam/scsi/scsi_message.h>
107	# include <cam/scsi/scsi_pass.h>
108	# include <VBox/scsi.h>
109	# include <iprt/log.h>
110	#else
111	# error "Unsupported Platform."
112	#endif
113
114	#include <VBox/vmm/pdmdrv.h>
115	#include <iprt/assert.h>
116	#include <iprt/file.h>
117	#include <iprt/path.h>
118	#include <iprt/string.h>
119	#include <iprt/thread.h>
120	#include <iprt/semaphore.h>
121	#include <iprt/uuid.h>
122	#include <iprt/asm.h>
123	#include <iprt/critsect.h>
124	#include <iprt/ctype.h>
125
126	#include "DrvHostBase.h"
127
128
129
130
131	/* -=-=-=-=- IBlock -=-=-=-=- */
132
133	/** @copydoc PDMIBLOCK::pfnRead */
134	static DECLCALLBACK(int) drvHostBaseRead(PPDMIBLOCK pInterface, uint64_t off, void *pvBuf, size_t cbRead)
135	{
136	PDRVHOSTBASE pThis = PDMIBLOCK_2_DRVHOSTBASE(pInterface);
137	LogFlow(("%s-%d: drvHostBaseRead: off=%#llx pvBuf=%p cbRead=%#x (%s)\n",
138	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, off, pvBuf, cbRead, pThis->pszDevice));
139	RTCritSectEnter(&pThis->CritSect);
140
141	/*
142	* Check the state.
143	*/
144	int rc;
145	#ifdef RT_OS_DARWIN
146	if ( pThis->fMediaPresent
147	&& pThis->ppScsiTaskDI
148	&& pThis->cbBlock)
149	#elif RT_OS_FREEBSD
150	if ( pThis->fMediaPresent
151	&& pThis->cbBlock)
152	#else
153	if (pThis->fMediaPresent)
154	#endif
155	{
156	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_FREEBSD)
157	/*
158	* Issue a READ(12) request.
159	*/
160	do
161	{
162	const uint32_t LBA = off / pThis->cbBlock;
163	AssertReturn(!(off % pThis->cbBlock), VERR_INVALID_PARAMETER);
164	uint32_t cbRead32 = cbRead > SCSI_MAX_BUFFER_SIZE
165	? SCSI_MAX_BUFFER_SIZE
166	: (uint32_t)cbRead;
167	const uint32_t cBlocks = cbRead32 / pThis->cbBlock;
168	AssertReturn(!(cbRead % pThis->cbBlock), VERR_INVALID_PARAMETER);
169	uint8_t abCmd[16] =
170	{
171	SCSI_READ_12, 0,
172	RT_BYTE4(LBA), RT_BYTE3(LBA), RT_BYTE2(LBA), RT_BYTE1(LBA),
173	RT_BYTE4(cBlocks), RT_BYTE3(cBlocks), RT_BYTE2(cBlocks), RT_BYTE1(cBlocks),
174	0, 0, 0, 0, 0
175	};
176	rc = DRVHostBaseScsiCmd(pThis, abCmd, 12, PDMBLOCKTXDIR_FROM_DEVICE, pvBuf, &cbRead32, NULL, 0, 0);
177
178	off += cbRead32;
179	cbRead -= cbRead32;
180	pvBuf = (uint8_t *)pvBuf + cbRead32;
181	} while ((cbRead > 0) && RT_SUCCESS(rc));
182
183	#else
184	/*
185	* Seek and read.
186	*/
187	rc = RTFileSeek(pThis->FileDevice, off, RTFILE_SEEK_BEGIN, NULL);
188	if (RT_SUCCESS(rc))
189	{
190	rc = RTFileRead(pThis->FileDevice, pvBuf, cbRead, NULL);
191	if (RT_SUCCESS(rc))
192	{
193	Log2(("%s-%d: drvHostBaseRead: off=%#llx cbRead=%#x\n"
194	"%16.*Rhxd\n",
195	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, off, cbRead, cbRead, pvBuf));
196	}
197	else
198	Log(("%s-%d: drvHostBaseRead: RTFileRead(%d, %p, %#x) -> %Rrc (off=%#llx '%s')\n",
199	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->FileDevice,
200	pvBuf, cbRead, rc, off, pThis->pszDevice));
201	}
202	else
203	Log(("%s-%d: drvHostBaseRead: RTFileSeek(%d,%#llx,) -> %Rrc\n", pThis->pDrvIns->pReg->szName,
204	pThis->pDrvIns->iInstance, pThis->FileDevice, off, rc));
205	#endif
206	}
207	else
208	rc = VERR_MEDIA_NOT_PRESENT;
209
210	RTCritSectLeave(&pThis->CritSect);
211	LogFlow(("%s-%d: drvHostBaseRead: returns %Rrc\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, rc));
212	return rc;
213	}
214
215
216	/** @copydoc PDMIBLOCK::pfnWrite */
217	static DECLCALLBACK(int) drvHostBaseWrite(PPDMIBLOCK pInterface, uint64_t off, const void *pvBuf, size_t cbWrite)
218	{
219	PDRVHOSTBASE pThis = PDMIBLOCK_2_DRVHOSTBASE(pInterface);
220	LogFlow(("%s-%d: drvHostBaseWrite: off=%#llx pvBuf=%p cbWrite=%#x (%s)\n",
221	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, off, pvBuf, cbWrite, pThis->pszDevice));
222	Log2(("%s-%d: drvHostBaseWrite: off=%#llx cbWrite=%#x\n"
223	"%16.*Rhxd\n",
224	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, off, cbWrite, cbWrite, pvBuf));
225	RTCritSectEnter(&pThis->CritSect);
226
227	/*
228	* Check the state.
229	*/
230	int rc;
231	if (!pThis->fReadOnly)
232	{
233	if (pThis->fMediaPresent)
234	{
235	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_FREEBSD)
236	/** @todo write support... */
237	rc = VERR_WRITE_PROTECT;
238
239	#else
240	/*
241	* Seek and write.
242	*/
243	rc = RTFileSeek(pThis->FileDevice, off, RTFILE_SEEK_BEGIN, NULL);
244	if (RT_SUCCESS(rc))
245	{
246	rc = RTFileWrite(pThis->FileDevice, pvBuf, cbWrite, NULL);
247	if (RT_FAILURE(rc))
248	Log(("%s-%d: drvHostBaseWrite: RTFileWrite(%d, %p, %#x) -> %Rrc (off=%#llx '%s')\n",
249	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->FileDevice,
250	pvBuf, cbWrite, rc, off, pThis->pszDevice));
251	}
252	else
253	Log(("%s-%d: drvHostBaseWrite: RTFileSeek(%d,%#llx,) -> %Rrc\n",
254	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->FileDevice, off, rc));
255	#endif
256	}
257	else
258	rc = VERR_MEDIA_NOT_PRESENT;
259	}
260	else
261	rc = VERR_WRITE_PROTECT;
262
263	RTCritSectLeave(&pThis->CritSect);
264	LogFlow(("%s-%d: drvHostBaseWrite: returns %Rrc\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, rc));
265	return rc;
266	}
267
268
269	/** @copydoc PDMIBLOCK::pfnFlush */
270	static DECLCALLBACK(int) drvHostBaseFlush(PPDMIBLOCK pInterface)
271	{
272	int rc;
273	PDRVHOSTBASE pThis = PDMIBLOCK_2_DRVHOSTBASE(pInterface);
274	LogFlow(("%s-%d: drvHostBaseFlush: (%s)\n",
275	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->pszDevice));
276	RTCritSectEnter(&pThis->CritSect);
277
278	if (pThis->fMediaPresent)
279	{
280	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_FREEBSD)
281	rc = VINF_SUCCESS;
282	/** @todo scsi device buffer flush... */
283	#else
284	rc = RTFileFlush(pThis->FileDevice);
285	#endif
286	}
287	else
288	rc = VERR_MEDIA_NOT_PRESENT;
289
290	RTCritSectLeave(&pThis->CritSect);
291	LogFlow(("%s-%d: drvHostBaseFlush: returns %Rrc\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, rc));
292	return rc;
293	}
294
295
296	/** @copydoc PDMIBLOCK::pfnIsReadOnly */
297	static DECLCALLBACK(bool) drvHostBaseIsReadOnly(PPDMIBLOCK pInterface)
298	{
299	PDRVHOSTBASE pThis = PDMIBLOCK_2_DRVHOSTBASE(pInterface);
300	return pThis->fReadOnly;
301	}
302
303
304	/** @copydoc PDMIBLOCK::pfnGetSize */
305	static DECLCALLBACK(uint64_t) drvHostBaseGetSize(PPDMIBLOCK pInterface)
306	{
307	PDRVHOSTBASE pThis = PDMIBLOCK_2_DRVHOSTBASE(pInterface);
308	RTCritSectEnter(&pThis->CritSect);
309
310	uint64_t cb = 0;
311	if (pThis->fMediaPresent)
312	cb = pThis->cbSize;
313
314	RTCritSectLeave(&pThis->CritSect);
315	LogFlow(("%s-%d: drvHostBaseGetSize: returns %llu\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, cb));
316	return cb;
317	}
318
319
320	/** @copydoc PDMIBLOCK::pfnGetType */
321	static DECLCALLBACK(PDMBLOCKTYPE) drvHostBaseGetType(PPDMIBLOCK pInterface)
322	{
323	PDRVHOSTBASE pThis = PDMIBLOCK_2_DRVHOSTBASE(pInterface);
324	LogFlow(("%s-%d: drvHostBaseGetType: returns %d\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->enmType));
325	return pThis->enmType;
326	}
327
328
329	/** @copydoc PDMIBLOCK::pfnGetUuid */
330	static DECLCALLBACK(int) drvHostBaseGetUuid(PPDMIBLOCK pInterface, PRTUUID pUuid)
331	{
332	PDRVHOSTBASE pThis = PDMIBLOCK_2_DRVHOSTBASE(pInterface);
333
334	*pUuid = pThis->Uuid;
335
336	LogFlow(("%s-%d: drvHostBaseGetUuid: returns VINF_SUCCESS *pUuid=%RTuuid\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pUuid));
337	return VINF_SUCCESS;
338	}
339
340
341	/* -=-=-=-=- IBlockBios -=-=-=-=- */
342
343	/** Makes a PDRVHOSTBASE out of a PPDMIBLOCKBIOS. */
344	#define PDMIBLOCKBIOS_2_DRVHOSTBASE(pInterface) ( (PDRVHOSTBASE((uintptr_t)pInterface - RT_OFFSETOF(DRVHOSTBASE, IBlockBios))) )
345
346
347	/** @copydoc PDMIBLOCKBIOS::pfnGetPCHSGeometry */
348	static DECLCALLBACK(int) drvHostBaseGetPCHSGeometry(PPDMIBLOCKBIOS pInterface, PPDMMEDIAGEOMETRY pPCHSGeometry)
349	{
350	PDRVHOSTBASE pThis = PDMIBLOCKBIOS_2_DRVHOSTBASE(pInterface);
351	RTCritSectEnter(&pThis->CritSect);
352
353	int rc = VINF_SUCCESS;
354	if (pThis->fMediaPresent)
355	{
356	if ( pThis->PCHSGeometry.cCylinders > 0
357	&& pThis->PCHSGeometry.cHeads > 0
358	&& pThis->PCHSGeometry.cSectors > 0)
359	{
360	*pPCHSGeometry = pThis->PCHSGeometry;
361	}
362	else
363	rc = VERR_PDM_GEOMETRY_NOT_SET;
364	}
365	else
366	rc = VERR_PDM_MEDIA_NOT_MOUNTED;
367
368	RTCritSectLeave(&pThis->CritSect);
369	LogFlow(("%s-%d: %s: returns %Rrc CHS={%d,%d,%d}\n",
370	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, __FUNCTION__, rc, pThis->PCHSGeometry.cCylinders, pThis->PCHSGeometry.cHeads, pThis->PCHSGeometry.cSectors));
371	return rc;
372	}
373
374
375	/** @copydoc PDMIBLOCKBIOS::pfnSetPCHSGeometry */
376	static DECLCALLBACK(int) drvHostBaseSetPCHSGeometry(PPDMIBLOCKBIOS pInterface, PCPDMMEDIAGEOMETRY pPCHSGeometry)
377	{
378	PDRVHOSTBASE pThis = PDMIBLOCKBIOS_2_DRVHOSTBASE(pInterface);
379	LogFlow(("%s-%d: %s: cCylinders=%d cHeads=%d cSectors=%d\n",
380	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, __FUNCTION__, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));
381	RTCritSectEnter(&pThis->CritSect);
382
383	int rc = VINF_SUCCESS;
384	if (pThis->fMediaPresent)
385	{
386	pThis->PCHSGeometry = *pPCHSGeometry;
387	}
388	else
389	{
390	AssertMsgFailed(("Invalid state! Not mounted!\n"));
391	rc = VERR_PDM_MEDIA_NOT_MOUNTED;
392	}
393
394	RTCritSectLeave(&pThis->CritSect);
395	return rc;
396	}
397
398
399	/** @copydoc PDMIBLOCKBIOS::pfnGetLCHSGeometry */
400	static DECLCALLBACK(int) drvHostBaseGetLCHSGeometry(PPDMIBLOCKBIOS pInterface, PPDMMEDIAGEOMETRY pLCHSGeometry)
401	{
402	PDRVHOSTBASE pThis = PDMIBLOCKBIOS_2_DRVHOSTBASE(pInterface);
403	RTCritSectEnter(&pThis->CritSect);
404
405	int rc = VINF_SUCCESS;
406	if (pThis->fMediaPresent)
407	{
408	if ( pThis->LCHSGeometry.cCylinders > 0
409	&& pThis->LCHSGeometry.cHeads > 0
410	&& pThis->LCHSGeometry.cSectors > 0)
411	{
412	*pLCHSGeometry = pThis->LCHSGeometry;
413	}
414	else
415	rc = VERR_PDM_GEOMETRY_NOT_SET;
416	}
417	else
418	rc = VERR_PDM_MEDIA_NOT_MOUNTED;
419
420	RTCritSectLeave(&pThis->CritSect);
421	LogFlow(("%s-%d: %s: returns %Rrc CHS={%d,%d,%d}\n",
422	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, __FUNCTION__, rc, pThis->LCHSGeometry.cCylinders, pThis->LCHSGeometry.cHeads, pThis->LCHSGeometry.cSectors));
423	return rc;
424	}
425
426
427	/** @copydoc PDMIBLOCKBIOS::pfnSetLCHSGeometry */
428	static DECLCALLBACK(int) drvHostBaseSetLCHSGeometry(PPDMIBLOCKBIOS pInterface, PCPDMMEDIAGEOMETRY pLCHSGeometry)
429	{
430	PDRVHOSTBASE pThis = PDMIBLOCKBIOS_2_DRVHOSTBASE(pInterface);
431	LogFlow(("%s-%d: %s: cCylinders=%d cHeads=%d cSectors=%d\n",
432	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, __FUNCTION__, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
433	RTCritSectEnter(&pThis->CritSect);
434
435	int rc = VINF_SUCCESS;
436	if (pThis->fMediaPresent)
437	{
438	pThis->LCHSGeometry = *pLCHSGeometry;
439	}
440	else
441	{
442	AssertMsgFailed(("Invalid state! Not mounted!\n"));
443	rc = VERR_PDM_MEDIA_NOT_MOUNTED;
444	}
445
446	RTCritSectLeave(&pThis->CritSect);
447	return rc;
448	}
449
450
451	/** @copydoc PDMIBLOCKBIOS::pfnIsVisible */
452	static DECLCALLBACK(bool) drvHostBaseIsVisible(PPDMIBLOCKBIOS pInterface)
453	{
454	PDRVHOSTBASE pThis = PDMIBLOCKBIOS_2_DRVHOSTBASE(pInterface);
455	return pThis->fBiosVisible;
456	}
457
458
459	/** @copydoc PDMIBLOCKBIOS::pfnGetType */
460	static DECLCALLBACK(PDMBLOCKTYPE) drvHostBaseBiosGetType(PPDMIBLOCKBIOS pInterface)
461	{
462	PDRVHOSTBASE pThis = PDMIBLOCKBIOS_2_DRVHOSTBASE(pInterface);
463	return pThis->enmType;
464	}
465
466
467
468	/* -=-=-=-=- IMount -=-=-=-=- */
469
470	/** @copydoc PDMIMOUNT::pfnMount */
471	static DECLCALLBACK(int) drvHostBaseMount(PPDMIMOUNT pInterface, const char pszFilename, const char pszCoreDriver)
472	{
473	/* We're not mountable. */
474	AssertMsgFailed(("drvHostBaseMount: This shouldn't be called!\n"));
475	return VERR_PDM_MEDIA_MOUNTED;
476	}
477
478
479	/** @copydoc PDMIMOUNT::pfnUnmount */
480	static DECLCALLBACK(int) drvHostBaseUnmount(PPDMIMOUNT pInterface, bool fForce, bool fEject)
481	{
482	LogFlow(("drvHostBaseUnmount: returns VERR_NOT_SUPPORTED\n"));
483	return VERR_NOT_SUPPORTED;
484	}
485
486
487	/** @copydoc PDMIMOUNT::pfnIsMounted */
488	static DECLCALLBACK(bool) drvHostBaseIsMounted(PPDMIMOUNT pInterface)
489	{
490	PDRVHOSTBASE pThis = PDMIMOUNT_2_DRVHOSTBASE(pInterface);
491	RTCritSectEnter(&pThis->CritSect);
492
493	bool fRc = pThis->fMediaPresent;
494
495	RTCritSectLeave(&pThis->CritSect);
496	return fRc;
497	}
498
499
500	/** @copydoc PDMIMOUNT::pfnIsLocked */
501	static DECLCALLBACK(int) drvHostBaseLock(PPDMIMOUNT pInterface)
502	{
503	PDRVHOSTBASE pThis = PDMIMOUNT_2_DRVHOSTBASE(pInterface);
504	RTCritSectEnter(&pThis->CritSect);
505
506	int rc = VINF_SUCCESS;
507	if (!pThis->fLocked)
508	{
509	if (pThis->pfnDoLock)
510	rc = pThis->pfnDoLock(pThis, true);
511	if (RT_SUCCESS(rc))
512	pThis->fLocked = true;
513	}
514	else
515	LogFlow(("%s-%d: drvHostBaseLock: already locked\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance));
516
517	RTCritSectLeave(&pThis->CritSect);
518	LogFlow(("%s-%d: drvHostBaseLock: returns %Rrc\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, rc));
519	return rc;
520	}
521
522
523	/** @copydoc PDMIMOUNT::pfnIsLocked */
524	static DECLCALLBACK(int) drvHostBaseUnlock(PPDMIMOUNT pInterface)
525	{
526	PDRVHOSTBASE pThis = PDMIMOUNT_2_DRVHOSTBASE(pInterface);
527	RTCritSectEnter(&pThis->CritSect);
528
529	int rc = VINF_SUCCESS;
530	if (pThis->fLocked)
531	{
532	if (pThis->pfnDoLock)
533	rc = pThis->pfnDoLock(pThis, false);
534	if (RT_SUCCESS(rc))
535	pThis->fLocked = false;
536	}
537	else
538	LogFlow(("%s-%d: drvHostBaseUnlock: not locked\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance));
539
540	RTCritSectLeave(&pThis->CritSect);
541	LogFlow(("%s-%d: drvHostBaseUnlock: returns %Rrc\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, rc));
542	return rc;
543	}
544
545
546	/** @copydoc PDMIMOUNT::pfnIsLocked */
547	static DECLCALLBACK(bool) drvHostBaseIsLocked(PPDMIMOUNT pInterface)
548	{
549	PDRVHOSTBASE pThis = PDMIMOUNT_2_DRVHOSTBASE(pInterface);
550	RTCritSectEnter(&pThis->CritSect);
551
552	bool fRc = pThis->fLocked;
553
554	RTCritSectLeave(&pThis->CritSect);
555	return fRc;
556	}
557
558
559	/* -=-=-=-=- IBase -=-=-=-=- */
560
561	/**
562	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
563	*/
564	static DECLCALLBACK(void ) drvHostBaseQueryInterface(PPDMIBASE pInterface, const char pszIID)
565	{
566	PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
567	PDRVHOSTBASE pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTBASE);
568
569	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
570	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBLOCK, &pThis->IBlock);
571	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBLOCKBIOS, pThis->fBiosVisible ? &pThis->IBlockBios : NULL);
572	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIMOUNT, &pThis->IMount);
573	return NULL;
574	}
575
576
577	/* -=-=-=-=- poller thread -=-=-=-=- */
578
579	#ifdef RT_OS_DARWIN
580	/** The runloop input source name for the disk arbitration events. */
581	# 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. */
582
583	/**
584	* Gets the BSD Name (/dev/disc[0-9]+) for the service.
585	*
586	* This is done by recursing down the I/O registry until we hit upon an entry
587	* with a BSD Name. Usually we find it two levels down. (Further down under
588	* the IOCDPartitionScheme, the volume (slices) BSD Name is found. We don't
589	* seem to have to go this far fortunately.)
590	*
591	* @return VINF_SUCCESS if found, VERR_FILE_NOT_FOUND otherwise.
592	* @param Entry The current I/O registry entry reference.
593	* @param pszName Where to store the name. 128 bytes.
594	* @param cRecursions Number of recursions. This is used as an precaution
595	* just to limit the depth and avoid blowing the stack
596	* should we hit a bug or something.
597	*/
598	static int drvHostBaseGetBSDName(io_registry_entry_t Entry, char *pszName, unsigned cRecursions)
599	{
600	int rc = VERR_FILE_NOT_FOUND;
601	io_iterator_t Children = 0;
602	kern_return_t krc = IORegistryEntryGetChildIterator(Entry, kIOServicePlane, &Children);
603	if (krc == KERN_SUCCESS)
604	{
605	io_object_t Child;
606	while ( rc == VERR_FILE_NOT_FOUND
607	&& (Child = IOIteratorNext(Children)) != 0)
608	{
609	CFStringRef BSDNameStrRef = (CFStringRef)IORegistryEntryCreateCFProperty(Child, CFSTR(kIOBSDNameKey), kCFAllocatorDefault, 0);
610	if (BSDNameStrRef)
611	{
612	if (CFStringGetCString(BSDNameStrRef, pszName, 128, kCFStringEncodingUTF8))
613	rc = VINF_SUCCESS;
614	else
615	AssertFailed();
616	CFRelease(BSDNameStrRef);
617	}
618	if (rc == VERR_FILE_NOT_FOUND && cRecursions < 10)
619	rc = drvHostBaseGetBSDName(Child, pszName, cRecursions + 1);
620	IOObjectRelease(Child);
621	}
622	IOObjectRelease(Children);
623	}
624	return rc;
625	}
626
627
628	/**
629	* Callback notifying us that the async DADiskClaim()/DADiskUnmount call has completed.
630	*
631	* @param DiskRef The disk that was attempted claimed / unmounted.
632	* @param DissenterRef NULL on success, contains details on failure.
633	* @param pvContext Pointer to the return code variable.
634	*/
635	static void drvHostBaseDADoneCallback(DADiskRef DiskRef, DADissenterRef DissenterRef, void *pvContext)
636	{
637	int prc = (int )pvContext;
638	if (!DissenterRef)
639	*prc = 0;
640	else
641	*prc = DADissenterGetStatus(DissenterRef) ? DADissenterGetStatus(DissenterRef) : -1;
642	CFRunLoopStop(CFRunLoopGetCurrent());
643	}
644
645
646	/**
647	* Obtain exclusive access to the DVD device, umount it if necessary.
648	*
649	* @return VBox status code.
650	* @param pThis The driver instance.
651	* @param DVDService The DVD service object.
652	*/
653	static int drvHostBaseObtainExclusiveAccess(PDRVHOSTBASE pThis, io_object_t DVDService)
654	{
655	PPDMDRVINS pDrvIns = pThis->pDrvIns; NOREF(pDrvIns);
656
657	for (unsigned iTry = 0;; iTry++)
658	{
659	IOReturn irc = (*pThis->ppScsiTaskDI)->ObtainExclusiveAccess(pThis->ppScsiTaskDI);
660	if (irc == kIOReturnSuccess)
661	{
662	/*
663	* This is a bit weird, but if we unmounted the DVD drive we also need to
664	* unlock it afterwards or the guest won't be able to eject it later on.
665	*/
666	if (pThis->pDADisk)
667	{
668	uint8_t abCmd[16] =
669	{
670	SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL, 0, 0, 0, false, 0,
671	0,0,0,0,0,0,0,0,0,0
672	};
673	DRVHostBaseScsiCmd(pThis, abCmd, 6, PDMBLOCKTXDIR_NONE, NULL, NULL, NULL, 0, 0);
674	}
675	return VINF_SUCCESS;
676	}
677	if (irc == kIOReturnExclusiveAccess)
678	return VERR_SHARING_VIOLATION; /* already used exclusivly. */
679	if (irc != kIOReturnBusy)
680	return VERR_GENERAL_FAILURE; /* not mounted */
681
682	/*
683	* Attempt to the unmount all volumes of the device.
684	* It seems we can can do this all in one go without having to enumerate the
685	* volumes (sessions) and deal with them one by one. This is very fortuitous
686	* as the disk arbitration API is a bit cumbersome to deal with.
687	*/
688	if (iTry > 2)
689	return VERR_DRIVE_LOCKED;
690	char szName[128];
691	int rc = drvHostBaseGetBSDName(DVDService, &szName[0], 0);
692	if (RT_SUCCESS(rc))
693	{
694	pThis->pDASession = DASessionCreate(kCFAllocatorDefault);
695	if (pThis->pDASession)
696	{
697	DASessionScheduleWithRunLoop(pThis->pDASession, CFRunLoopGetCurrent(), MY_RUN_LOOP_MODE);
698	pThis->pDADisk = DADiskCreateFromBSDName(kCFAllocatorDefault, pThis->pDASession, szName);
699	if (pThis->pDADisk)
700	{
701	/*
702	* Try claim the device.
703	*/
704	Log(("%s-%d: calling DADiskClaim on '%s'.\n", pDrvIns->pReg->szName, pDrvIns->iInstance, szName));
705	int rcDA = -2;
706	DADiskClaim(pThis->pDADisk, kDADiskClaimOptionDefault, NULL, NULL, drvHostBaseDADoneCallback, &rcDA);
707	SInt32 rc32 = CFRunLoopRunInMode(MY_RUN_LOOP_MODE, 120.0, FALSE);
708	AssertMsg(rc32 == kCFRunLoopRunStopped, ("rc32=%RI32 (%RX32)\n", rc32, rc32));
709	if ( rc32 == kCFRunLoopRunStopped
710	&& !rcDA)
711	{
712	/*
713	* Try unmount the device.
714	*/
715	Log(("%s-%d: calling DADiskUnmount on '%s'.\n", pDrvIns->pReg->szName, pDrvIns->iInstance, szName));
716	rcDA = -2;
717	DADiskUnmount(pThis->pDADisk, kDADiskUnmountOptionWhole, drvHostBaseDADoneCallback, &rcDA);
718	rc32 = CFRunLoopRunInMode(MY_RUN_LOOP_MODE, 120.0, FALSE);
719	AssertMsg(rc32 == kCFRunLoopRunStopped, ("rc32=%RI32 (%RX32)\n", rc32, rc32));
720	if ( rc32 == kCFRunLoopRunStopped
721	&& !rcDA)
722	{
723	iTry = 99;
724	DASessionUnscheduleFromRunLoop(pThis->pDASession, CFRunLoopGetCurrent(), MY_RUN_LOOP_MODE);
725	Log(("%s-%d: unmount succeed - retrying.\n", pDrvIns->pReg->szName, pDrvIns->iInstance));
726	continue;
727	}
728	Log(("%s-%d: umount => rc32=%d & rcDA=%#x\n", pDrvIns->pReg->szName, pDrvIns->iInstance, rc32, rcDA));
729
730	/* failed - cleanup */
731	DADiskUnclaim(pThis->pDADisk);
732	}
733	else
734	Log(("%s-%d: claim => rc32=%d & rcDA=%#x\n", pDrvIns->pReg->szName, pDrvIns->iInstance, rc32, rcDA));
735
736	CFRelease(pThis->pDADisk);
737	pThis->pDADisk = NULL;
738	}
739	else
740	Log(("%s-%d: failed to open disk '%s'!\n", pDrvIns->pReg->szName, pDrvIns->iInstance, szName));
741
742	DASessionUnscheduleFromRunLoop(pThis->pDASession, CFRunLoopGetCurrent(), MY_RUN_LOOP_MODE);
743	CFRelease(pThis->pDASession);
744	pThis->pDASession = NULL;
745	}
746	else
747	Log(("%s-%d: failed to create DA session!\n", pDrvIns->pReg->szName, pDrvIns->iInstance));
748	}
749	RTThreadSleep(10);
750	}
751	}
752	#endif /* RT_OS_DARWIN */
753
754
755	#ifndef RT_OS_SOLARIS
756	/**
757	* Wrapper for open / RTFileOpen / IOKit.
758	*
759	* @remark The Darwin code must correspond exactly to the enumeration
760	* done in Main/darwin/iokit.c.
761	*/
762	static int drvHostBaseOpen(PDRVHOSTBASE pThis, PRTFILE pFileDevice, bool fReadOnly)
763	{
764	#ifdef RT_OS_DARWIN
765	/* Darwin is kind of special... */
766	Assert(!pFileDevice); NOREF(pFileDevice);
767	Assert(!pThis->cbBlock);
768	Assert(!pThis->MasterPort);
769	Assert(!pThis->ppMMCDI);
770	Assert(!pThis->ppScsiTaskDI);
771
772	/*
773	* Open the master port on the first invocation.
774	*/
775	kern_return_t krc = IOMasterPort(MACH_PORT_NULL, &pThis->MasterPort);
776	AssertReturn(krc == KERN_SUCCESS, VERR_GENERAL_FAILURE);
777
778	/*
779	* Create a matching dictionary for searching for DVD services in the IOKit.
780	*
781	* [If I understand this correctly, plain CDROMs doesn't show up as
782	* IODVDServices. Too keep things simple, we will only support DVDs
783	* until somebody complains about it and we get hardware to test it on.
784	* (Unless I'm much mistaken, there aren't any (orignal) intel macs with
785	* plain cdroms.)]
786	*/
787	CFMutableDictionaryRef RefMatchingDict = IOServiceMatching("IODVDServices");
788	AssertReturn(RefMatchingDict, NULL);
789
790	/*
791	* do the search and get a collection of keyboards.
792	*/
793	io_iterator_t DVDServices = NULL;
794	IOReturn irc = IOServiceGetMatchingServices(pThis->MasterPort, RefMatchingDict, &DVDServices);
795	AssertMsgReturn(irc == kIOReturnSuccess, ("irc=%d\n", irc), NULL);
796	RefMatchingDict = NULL; /* the reference is consumed by IOServiceGetMatchingServices. */
797
798	/*
799	* Enumerate the DVD drives (services).
800	* (This enumeration must be identical to the one performed in DrvHostBase.cpp.)
801	*/
802	int rc = VERR_FILE_NOT_FOUND;
803	unsigned i = 0;
804	io_object_t DVDService;
805	while ((DVDService = IOIteratorNext(DVDServices)) != 0)
806	{
807	/*
808	* Get the properties we use to identify the DVD drive.
809	*
810	* While there is a (weird 12 byte) GUID, it isn't persistent
811	* across boots. So, we have to use a combination of the
812	* vendor name and product name properties with an optional
813	* sequence number for identification.
814	*/
815	CFMutableDictionaryRef PropsRef = 0;
816	krc = IORegistryEntryCreateCFProperties(DVDService, &PropsRef, kCFAllocatorDefault, kNilOptions);
817	if (krc == KERN_SUCCESS)
818	{
819	/* Get the Device Characteristics dictionary. */
820	CFDictionaryRef DevCharRef = (CFDictionaryRef)CFDictionaryGetValue(PropsRef, CFSTR(kIOPropertyDeviceCharacteristicsKey));
821	if (DevCharRef)
822	{
823	/* The vendor name. */
824	char szVendor[128];
825	char *pszVendor = &szVendor[0];
826	CFTypeRef ValueRef = CFDictionaryGetValue(DevCharRef, CFSTR(kIOPropertyVendorNameKey));
827	if ( ValueRef
828	&& CFGetTypeID(ValueRef) == CFStringGetTypeID()
829	&& CFStringGetCString((CFStringRef)ValueRef, szVendor, sizeof(szVendor), kCFStringEncodingUTF8))
830	pszVendor = RTStrStrip(szVendor);
831	else
832	*pszVendor = '\0';
833
834	/* The product name. */
835	char szProduct[128];
836	char *pszProduct = &szProduct[0];
837	ValueRef = CFDictionaryGetValue(DevCharRef, CFSTR(kIOPropertyProductNameKey));
838	if ( ValueRef
839	&& CFGetTypeID(ValueRef) == CFStringGetTypeID()
840	&& CFStringGetCString((CFStringRef)ValueRef, szProduct, sizeof(szProduct), kCFStringEncodingUTF8))
841	pszProduct = RTStrStrip(szProduct);
842	else
843	*pszProduct = '\0';
844
845	/* Construct the two names and compare thwm with the one we're searching for. */
846	char szName1[256 + 32];
847	char szName2[256 + 32];
848	if (pszVendor \|\| pszProduct)
849	{
850	if (pszVendor && pszProduct)
851	{
852	RTStrPrintf(szName1, sizeof(szName1), "%s %s", pszVendor, pszProduct);
853	RTStrPrintf(szName2, sizeof(szName2), "%s %s (#%u)", pszVendor, pszProduct, i);
854	}
855	else
856	{
857	strcpy(szName1, *pszVendor ? pszVendor : pszProduct);
858	RTStrPrintf(szName2, sizeof(szName2), "%s %s (#%u)", *pszVendor ? pszVendor : pszProduct, i);
859	}
860	}
861	else
862	{
863	RTStrPrintf(szName1, sizeof(szName1), "(#%u)", i);
864	strcpy(szName2, szName1);
865	}
866
867	if ( !strcmp(szName1, pThis->pszDeviceOpen)
868	\|\| !strcmp(szName2, pThis->pszDeviceOpen))
869	{
870	/*
871	* Found it! Now, get the client interface and stuff.
872	* Note that we could also query kIOSCSITaskDeviceUserClientTypeID here if the
873	* MMC client plugin is missing. For now we assume this won't be necessary.
874	*/
875	SInt32 Score = 0;
876	IOCFPlugInInterface **ppPlugInInterface = NULL;
877	krc = IOCreatePlugInInterfaceForService(DVDService, kIOMMCDeviceUserClientTypeID, kIOCFPlugInInterfaceID,
878	&ppPlugInInterface, &Score);
879	if (krc == KERN_SUCCESS)
880	{
881	HRESULT hrc = (*ppPlugInInterface)->QueryInterface(ppPlugInInterface,
882	CFUUIDGetUUIDBytes(kIOMMCDeviceInterfaceID),
883	(LPVOID *)&pThis->ppMMCDI);
884	(*ppPlugInInterface)->Release(ppPlugInInterface);
885	ppPlugInInterface = NULL;
886	if (hrc == S_OK)
887	{
888	pThis->ppScsiTaskDI = (*pThis->ppMMCDI)->GetSCSITaskDeviceInterface(pThis->ppMMCDI);
889	if (pThis->ppScsiTaskDI)
890	rc = VINF_SUCCESS;
891	else
892	{
893	LogRel(("GetSCSITaskDeviceInterface failed on '%s'\n", pThis->pszDeviceOpen));
894	rc = VERR_NOT_SUPPORTED;
895	(*pThis->ppMMCDI)->Release(pThis->ppMMCDI);
896	}
897	}
898	else
899	{
900	rc = VERR_GENERAL_FAILURE;//RTErrConvertFromDarwinCOM(krc);
901	pThis->ppMMCDI = NULL;
902	}
903	}
904	else /* Check for kIOSCSITaskDeviceUserClientTypeID? */
905	rc = VERR_GENERAL_FAILURE;//RTErrConvertFromDarwinKern(krc);
906
907	/* Obtain exclusive access to the device so we can send SCSI commands. */
908	if (RT_SUCCESS(rc))
909	rc = drvHostBaseObtainExclusiveAccess(pThis, DVDService);
910
911	/* Cleanup on failure. */
912	if (RT_FAILURE(rc))
913	{
914	if (pThis->ppScsiTaskDI)
915	{
916	(*pThis->ppScsiTaskDI)->Release(pThis->ppScsiTaskDI);
917	pThis->ppScsiTaskDI = NULL;
918	}
919	if (pThis->ppMMCDI)
920	{
921	(*pThis->ppMMCDI)->Release(pThis->ppMMCDI);
922	pThis->ppMMCDI = NULL;
923	}
924	}
925
926	IOObjectRelease(DVDService);
927	break;
928	}
929	}
930	CFRelease(PropsRef);
931	}
932	else
933	AssertMsgFailed(("krc=%#x\n", krc));
934
935	IOObjectRelease(DVDService);
936	i++;
937	}
938
939	IOObjectRelease(DVDServices);
940	return rc;
941
942	#elif defined(RT_OS_LINUX)
943	/** @todo we've got RTFILE_O_NON_BLOCK now. Change the code to use RTFileOpen. */
944	int FileDevice = open(pThis->pszDeviceOpen, (pThis->fReadOnlyConfig ? O_RDONLY : O_RDWR) \| O_NONBLOCK);
945	if (FileDevice < 0)
946	return RTErrConvertFromErrno(errno);
947	*pFileDevice = FileDevice;
948	return VINF_SUCCESS;
949
950	#elif defined(RT_OS_FREEBSD)
951	int rc = VINF_SUCCESS;
952	RTFILE FileDevice;
953
954	rc = RTFileOpen(&FileDevice, pThis->pszDeviceOpen, RTFILE_O_READWRITE \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE);
955	if (RT_FAILURE(rc))
956	return rc;
957
958	/*
959	* The current device handle can't passthrough SCSI commands.
960	* We have to get he passthrough device path and open this.
961	*/
962	union ccb DeviceCCB;
963	memset(&DeviceCCB, 0, sizeof(DeviceCCB));
964
965	DeviceCCB.ccb_h.func_code = XPT_GDEVLIST;
966	int rcBSD = ioctl(FileDevice, CAMGETPASSTHRU, &DeviceCCB);
967	if (!rcBSD)
968	{
969	char *pszPassthroughDevice = NULL;
970	rc = RTStrAPrintf(&pszPassthroughDevice, "/dev/%s%u",
971	DeviceCCB.cgdl.periph_name, DeviceCCB.cgdl.unit_number);
972	if (rc >= 0)
973	{
974	RTFILE PassthroughDevice;
975
976	rc = RTFileOpen(&PassthroughDevice, pszPassthroughDevice, RTFILE_O_READWRITE \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE);
977
978	RTStrFree(pszPassthroughDevice);
979
980	if (RT_SUCCESS(rc))
981	{
982	/* Get needed device parameters. */
983
984	/*
985	* The device path, target id and lun id. Those are
986	* needed for the SCSI passthrough ioctl.
987	*/
988	memset(&DeviceCCB, 0, sizeof(DeviceCCB));
989	DeviceCCB.ccb_h.func_code = XPT_GDEVLIST;
990
991	rcBSD = ioctl(PassthroughDevice, CAMGETPASSTHRU, &DeviceCCB);
992	if (!rcBSD)
993	{
994	if (DeviceCCB.cgdl.status != CAM_GDEVLIST_ERROR)
995	{
996	pThis->ScsiBus = DeviceCCB.ccb_h.path_id;
997	pThis->ScsiTargetID = DeviceCCB.ccb_h.target_id;
998	pThis->ScsiLunID = DeviceCCB.ccb_h.target_lun;
999	*pFileDevice = PassthroughDevice;
1000	}
1001	else
1002	{
1003	/* The passthrough device wasn't found. */
1004	rc = VERR_NOT_FOUND;
1005	}
1006	}
1007	else
1008	rc = RTErrConvertFromErrno(errno);
1009
1010	if (RT_FAILURE(rc))
1011	RTFileClose(PassthroughDevice);
1012	}
1013	}
1014	else
1015	rc = VERR_NO_STR_MEMORY;
1016	}
1017	else
1018	rc = RTErrConvertFromErrno(errno);
1019
1020	RTFileClose(FileDevice);
1021	return rc;
1022	#else
1023	return RTFileOpen(pFileDevice, pThis->pszDeviceOpen,
1024	(fReadOnly ? RTFILE_O_READ : RTFILE_O_READWRITE) \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE);
1025	#endif
1026	}
1027
1028	#else /* RT_OS_SOLARIS */
1029
1030	/**
1031	* Solaris wrapper for RTFileOpen.
1032	*
1033	* Solaris has to deal with two filehandles, a block and a raw one. Rather than messing
1034	* with drvHostBaseOpen's function signature & body, having a separate one is better.
1035	*
1036	* @returns VBox status code.
1037	*/
1038	static int drvHostBaseOpen(PDRVHOSTBASE pThis, PRTFILE pFileBlockDevice, PRTFILE pFileRawDevice, bool fReadOnly)
1039	{
1040	unsigned fFlags = (fReadOnly ? RTFILE_O_READ : RTFILE_O_READWRITE)
1041	\| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_NON_BLOCK;
1042	int rc = RTFileOpen(pFileBlockDevice, pThis->pszDeviceOpen, fFlags);
1043	if (RT_SUCCESS(rc))
1044	{
1045	rc = RTFileOpen(pFileRawDevice, pThis->pszRawDeviceOpen, fFlags);
1046	if (RT_SUCCESS(rc))
1047	return rc;
1048
1049	LogRel(("DVD: failed to open device %s rc=%Rrc\n", pThis->pszRawDeviceOpen, rc));
1050	RTFileClose(*pFileBlockDevice);
1051	}
1052	else
1053	LogRel(("DVD: failed to open device %s rc=%Rrc\n", pThis->pszDeviceOpen, rc));
1054	return rc;
1055	}
1056	#endif /* RT_OS_SOLARIS */
1057
1058
1059	/**
1060	* (Re)opens the device.
1061	*
1062	* This is used to open the device during construction, but it's also used to re-open
1063	* the device when a media is inserted. This re-open will kill off any cached data
1064	* that Linux for some peculiar reason thinks should survive a media change...
1065	*
1066	* @returns VBOX status code.
1067	* @param pThis Instance data.
1068	*/
1069	static int drvHostBaseReopen(PDRVHOSTBASE pThis)
1070	{
1071	#ifndef RT_OS_DARWIN /* Only one open for darwin. */
1072	LogFlow(("%s-%d: drvHostBaseReopen: '%s'\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->pszDeviceOpen));
1073
1074	RTFILE FileDevice;
1075	#ifdef RT_OS_SOLARIS
1076	if (pThis->FileRawDevice != NIL_RTFILE)
1077	{
1078	RTFileClose(pThis->FileRawDevice);
1079	pThis->FileRawDevice = NIL_RTFILE;
1080	}
1081	if (pThis->FileDevice != NIL_RTFILE)
1082	{
1083	RTFileClose(pThis->FileDevice);
1084	pThis->FileDevice = NIL_RTFILE;
1085	}
1086	RTFILE FileRawDevice;
1087	int rc = drvHostBaseOpen(pThis, &FileDevice, &FileRawDevice, pThis->fReadOnlyConfig);
1088	#else
1089	int rc = drvHostBaseOpen(pThis, &FileDevice, pThis->fReadOnlyConfig);
1090	#endif
1091	if (RT_FAILURE(rc))
1092	{
1093	if (!pThis->fReadOnlyConfig)
1094	{
1095	LogFlow(("%s-%d: drvHostBaseReopen: '%s' - retry readonly (%Rrc)\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->pszDeviceOpen, rc));
1096	#ifdef RT_OS_SOLARIS
1097	rc = drvHostBaseOpen(pThis, &FileDevice, &FileRawDevice, false);
1098	#else
1099	rc = drvHostBaseOpen(pThis, &FileDevice, false);
1100	#endif
1101	}
1102	if (RT_FAILURE(rc))
1103	{
1104	LogFlow(("%s-%d: failed to open device '%s', rc=%Rrc\n",
1105	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->pszDevice, rc));
1106	return rc;
1107	}
1108	pThis->fReadOnly = true;
1109	}
1110	else
1111	pThis->fReadOnly = pThis->fReadOnlyConfig;
1112
1113	#ifdef RT_OS_SOLARIS
1114	if (pThis->FileRawDevice != NIL_RTFILE)
1115	RTFileClose(pThis->FileRawDevice);
1116	pThis->FileRawDevice = FileRawDevice;
1117	#endif
1118
1119	if (pThis->FileDevice != NIL_RTFILE)
1120	RTFileClose(pThis->FileDevice);
1121	pThis->FileDevice = FileDevice;
1122	#endif /* !RT_OS_DARWIN */
1123	return VINF_SUCCESS;
1124	}
1125
1126
1127	/**
1128	* Queries the media size.
1129	*
1130	* @returns VBox status code.
1131	* @param pThis Pointer to the instance data.
1132	* @param pcb Where to store the media size in bytes.
1133	*/
1134	static int drvHostBaseGetMediaSize(PDRVHOSTBASE pThis, uint64_t *pcb)
1135	{
1136	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_FREEBSD)
1137	/*
1138	* Try a READ_CAPACITY command...
1139	*/
1140	struct
1141	{
1142	uint32_t cBlocks;
1143	uint32_t cbBlock;
1144	} Buf = {0, 0};
1145	uint32_t cbBuf = sizeof(Buf);
1146	uint8_t abCmd[16] =
1147	{
1148	SCSI_READ_CAPACITY, 0, 0, 0, 0, 0, 0,
1149	0,0,0,0,0,0,0,0,0
1150	};
1151	int rc = DRVHostBaseScsiCmd(pThis, abCmd, 6, PDMBLOCKTXDIR_FROM_DEVICE, &Buf, &cbBuf, NULL, 0, 0);
1152	if (RT_SUCCESS(rc))
1153	{
1154	Assert(cbBuf == sizeof(Buf));
1155	Buf.cBlocks = RT_BE2H_U32(Buf.cBlocks);
1156	Buf.cbBlock = RT_BE2H_U32(Buf.cbBlock);
1157	//if (Buf.cbBlock > 2048) /* everyone else is doing this... check if it needed/right.*/
1158	// Buf.cbBlock = 2048;
1159	pThis->cbBlock = Buf.cbBlock;
1160
1161	pcb = (uint64_t)Buf.cBlocks Buf.cbBlock;
1162	}
1163	return rc;
1164
1165	#elif defined(RT_OS_SOLARIS)
1166	/*
1167	* Sun docs suggests using DKIOCGGEOM instead of DKIOCGMEDIAINFO, but
1168	* Sun themselves use DKIOCGMEDIAINFO for DVDs/CDs, and use DKIOCGGEOM
1169	* for secondary storage devices.
1170	*/
1171	struct dk_minfo MediaInfo;
1172	if (ioctl(pThis->FileRawDevice, DKIOCGMEDIAINFO, &MediaInfo) == 0)
1173	{
1174	pcb = MediaInfo.dki_capacity (uint64_t)MediaInfo.dki_lbsize;
1175	return VINF_SUCCESS;
1176	}
1177	return RTFileSeek(pThis->FileDevice, 0, RTFILE_SEEK_END, pcb);
1178
1179	#elif defined(RT_OS_WINDOWS)
1180	/* use NT api, retry a few times if the media is being verified. */
1181	IO_STATUS_BLOCK IoStatusBlock = {0};
1182	FILE_FS_SIZE_INFORMATION FsSize= {0};
1183	NTSTATUS rcNt = NtQueryVolumeInformationFile((HANDLE)pThis->FileDevice, &IoStatusBlock,
1184	&FsSize, sizeof(FsSize), FileFsSizeInformation);
1185	int cRetries = 5;
1186	while (rcNt == STATUS_VERIFY_REQUIRED && cRetries-- > 0)
1187	{
1188	RTThreadSleep(10);
1189	rcNt = NtQueryVolumeInformationFile((HANDLE)pThis->FileDevice, &IoStatusBlock,
1190	&FsSize, sizeof(FsSize), FileFsSizeInformation);
1191	}
1192	if (rcNt >= 0)
1193	{
1194	pcb = FsSize.TotalAllocationUnits.QuadPart FsSize.BytesPerSector;
1195	return VINF_SUCCESS;
1196	}
1197
1198	/* convert nt status code to VBox status code. */
1199	/** @todo Make conversion function!. */
1200	int rc = VERR_GENERAL_FAILURE;
1201	switch (rcNt)
1202	{
1203	case STATUS_NO_MEDIA_IN_DEVICE: rc = VERR_MEDIA_NOT_PRESENT; break;
1204	case STATUS_VERIFY_REQUIRED: rc = VERR_TRY_AGAIN; break;
1205	}
1206	LogFlow(("drvHostBaseGetMediaSize: NtQueryVolumeInformationFile -> %#lx\n", rcNt, rc));
1207	return rc;
1208	#else
1209	return RTFileSeek(pThis->FileDevice, 0, RTFILE_SEEK_END, pcb);
1210	#endif
1211	}
1212
1213
1214	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_FREEBSD)
1215	/**
1216	* Execute a SCSI command.
1217	*
1218	* @param pThis The instance data.
1219	* @param pbCmd Pointer to the SCSI command.
1220	* @param cbCmd The size of the SCSI command.
1221	* @param enmTxDir The transfer direction.
1222	* @param pvBuf The buffer. Can be NULL if enmTxDir is PDMBLOCKTXDIR_NONE.
1223	* @param pcbBuf Where to get the buffer size from and put the actual transfer size. Can be NULL.
1224	* @param pbSense Where to put the sense data. Can be NULL.
1225	* @param cbSense Size of the sense data buffer.
1226	* @param cTimeoutMillies The timeout. 0 mean the default timeout.
1227	*
1228	* @returns VINF_SUCCESS on success (no sense code).
1229	* @returns VERR_UNRESOLVED_ERROR if sense code is present.
1230	* @returns Some other VBox status code on failures without sense code.
1231	*
1232	* @todo Fix VERR_UNRESOLVED_ERROR abuse.
1233	*/
1234	DECLCALLBACK(int) DRVHostBaseScsiCmd(PDRVHOSTBASE pThis, const uint8_t *pbCmd, size_t cbCmd, PDMBLOCKTXDIR enmTxDir,
1235	void pvBuf, uint32_t pcbBuf, uint8_t *pbSense, size_t cbSense, uint32_t cTimeoutMillies)
1236	{
1237	/*
1238	* Minimal input validation.
1239	*/
1240	Assert(enmTxDir == PDMBLOCKTXDIR_NONE \|\| enmTxDir == PDMBLOCKTXDIR_FROM_DEVICE \|\| enmTxDir == PDMBLOCKTXDIR_TO_DEVICE);
1241	Assert(!pvBuf \|\| pcbBuf);
1242	Assert(pvBuf \|\| enmTxDir == PDMBLOCKTXDIR_NONE);
1243	Assert(pbSense \|\| !cbSense);
1244	AssertPtr(pbCmd);
1245	Assert(cbCmd <= 16 && cbCmd >= 1);
1246	const uint32_t cbBuf = pcbBuf ? *pcbBuf : 0;
1247	if (pcbBuf)
1248	*pcbBuf = 0;
1249
1250	# ifdef RT_OS_DARWIN
1251	Assert(pThis->ppScsiTaskDI);
1252
1253	int rc = VERR_GENERAL_FAILURE;
1254	SCSITaskInterface *ppScsiTaskI = (pThis->ppScsiTaskDI)->CreateSCSITask(pThis->ppScsiTaskDI);
1255	if (!ppScsiTaskI)
1256	return VERR_NO_MEMORY;
1257	do
1258	{
1259	/* Setup the scsi command. */
1260	SCSICommandDescriptorBlock cdb = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
1261	memcpy(&cdb[0], pbCmd, cbCmd);
1262	IOReturn irc = (*ppScsiTaskI)->SetCommandDescriptorBlock(ppScsiTaskI, cdb, cbCmd);
1263	AssertBreak(irc == kIOReturnSuccess);
1264
1265	/* Setup the buffer. */
1266	if (enmTxDir == PDMBLOCKTXDIR_NONE)
1267	irc = (*ppScsiTaskI)->SetScatterGatherEntries(ppScsiTaskI, NULL, 0, 0, kSCSIDataTransfer_NoDataTransfer);
1268	else
1269	{
1270	IOVirtualRange Range = { (IOVirtualAddress)pvBuf, cbBuf };
1271	irc = (*ppScsiTaskI)->SetScatterGatherEntries(ppScsiTaskI, &Range, 1, cbBuf,
1272	enmTxDir == PDMBLOCKTXDIR_FROM_DEVICE
1273	? kSCSIDataTransfer_FromTargetToInitiator
1274	: kSCSIDataTransfer_FromInitiatorToTarget);
1275	}
1276	AssertBreak(irc == kIOReturnSuccess);
1277
1278	/* Set the timeout. */
1279	irc = (ppScsiTaskI)->SetTimeoutDuration(ppScsiTaskI, cTimeoutMillies ? cTimeoutMillies : 30000 /ms*/);
1280	AssertBreak(irc == kIOReturnSuccess);
1281
1282	/* Execute the command and get the response. */
1283	SCSI_Sense_Data SenseData = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
1284	SCSIServiceResponse ServiceResponse = kSCSIServiceResponse_Request_In_Process;
1285	SCSITaskStatus TaskStatus = kSCSITaskStatus_GOOD;
1286	UInt64 cbReturned = 0;
1287	irc = (*ppScsiTaskI)->ExecuteTaskSync(ppScsiTaskI, &SenseData, &TaskStatus, &cbReturned);
1288	AssertBreak(irc == kIOReturnSuccess);
1289	if (pcbBuf)
1290	*pcbBuf = (int32_t)cbReturned;
1291
1292	irc = (*ppScsiTaskI)->GetSCSIServiceResponse(ppScsiTaskI, &ServiceResponse);
1293	AssertBreak(irc == kIOReturnSuccess);
1294	AssertBreak(ServiceResponse == kSCSIServiceResponse_TASK_COMPLETE);
1295
1296	if (TaskStatus == kSCSITaskStatus_GOOD)
1297	rc = VINF_SUCCESS;
1298	else if ( TaskStatus == kSCSITaskStatus_CHECK_CONDITION
1299	&& pbSense)
1300	{
1301	memset(pbSense, 0, cbSense); /* lazy */
1302	memcpy(pbSense, &SenseData, RT_MIN(sizeof(SenseData), cbSense));
1303	rc = VERR_UNRESOLVED_ERROR;
1304	}
1305	/** @todo convert sense codes when caller doesn't wish to do this himself. */
1306	/*else if ( TaskStatus == kSCSITaskStatus_CHECK_CONDITION
1307	&& SenseData.ADDITIONAL_SENSE_CODE == 0x3A)
1308	rc = VERR_MEDIA_NOT_PRESENT; */
1309	else
1310	{
1311	rc = enmTxDir == PDMBLOCKTXDIR_NONE
1312	? VERR_DEV_IO_ERROR
1313	: enmTxDir == PDMBLOCKTXDIR_FROM_DEVICE
1314	? VERR_READ_ERROR
1315	: VERR_WRITE_ERROR;
1316	if (pThis->cLogRelErrors++ < 10)
1317	LogRel(("DVD scsi error: cmd={%.*Rhxs} TaskStatus=%#x key=%#x ASC=%#x ASCQ=%#x (%Rrc)\n",
1318	cbCmd, pbCmd, TaskStatus, SenseData.SENSE_KEY, SenseData.ADDITIONAL_SENSE_CODE,
1319	SenseData.ADDITIONAL_SENSE_CODE_QUALIFIER, rc));
1320	}
1321	} while (0);
1322
1323	(*ppScsiTaskI)->Release(ppScsiTaskI);
1324
1325	# elif defined(RT_OS_FREEBSD)
1326	int rc = VINF_SUCCESS;
1327	int rcBSD = 0;
1328	union ccb DeviceCCB;
1329	union ccb *pDeviceCCB = &DeviceCCB;
1330	u_int32_t fFlags;
1331
1332	memset(pDeviceCCB, 0, sizeof(DeviceCCB));
1333	pDeviceCCB->ccb_h.path_id = pThis->ScsiBus;
1334	pDeviceCCB->ccb_h.target_id = pThis->ScsiTargetID;
1335	pDeviceCCB->ccb_h.target_lun = pThis->ScsiLunID;
1336
1337	/* The SCSI INQUIRY command can't be passed through directly. */
1338	if (pbCmd[0] == SCSI_INQUIRY)
1339	{
1340	pDeviceCCB->ccb_h.func_code = XPT_GDEV_TYPE;
1341
1342	rcBSD = ioctl(pThis->FileDevice, CAMIOCOMMAND, pDeviceCCB);
1343	if (!rcBSD)
1344	{
1345	uint32_t cbCopy = cbBuf < sizeof(struct scsi_inquiry_data)
1346	? cbBuf
1347	: sizeof(struct scsi_inquiry_data);;
1348	memcpy(pvBuf, &pDeviceCCB->cgd.inq_data, cbCopy);
1349	memset(pbSense, 0, cbSense);
1350
1351	if (pcbBuf)
1352	*pcbBuf = cbCopy;
1353	}
1354	else
1355	rc = RTErrConvertFromErrno(errno);
1356	}
1357	else
1358	{
1359	/* Copy the CDB. */
1360	memcpy(&pDeviceCCB->csio.cdb_io.cdb_bytes, pbCmd, cbCmd);
1361
1362	/* Set direction. */
1363	if (enmTxDir == PDMBLOCKTXDIR_NONE)
1364	fFlags = CAM_DIR_NONE;
1365	else if (enmTxDir == PDMBLOCKTXDIR_FROM_DEVICE)
1366	fFlags = CAM_DIR_IN;
1367	else
1368	fFlags = CAM_DIR_OUT;
1369
1370	fFlags \|= CAM_DEV_QFRZDIS;
1371
1372	cam_fill_csio(&pDeviceCCB->csio, 1, NULL, fFlags, MSG_SIMPLE_Q_TAG,
1373	(u_int8_t *)pvBuf, cbBuf, cbSense, cbCmd,
1374	cTimeoutMillies ? cTimeoutMillies : 30000/* timeout */);
1375
1376	/* Send command */
1377	rcBSD = ioctl(pThis->FileDevice, CAMIOCOMMAND, pDeviceCCB);
1378	if (!rcBSD)
1379	{
1380	switch (pDeviceCCB->ccb_h.status & CAM_STATUS_MASK)
1381	{
1382	case CAM_REQ_CMP:
1383	rc = VINF_SUCCESS;
1384	break;
1385	case CAM_SEL_TIMEOUT:
1386	rc = VERR_DEV_IO_ERROR;
1387	break;
1388	case CAM_CMD_TIMEOUT:
1389	rc = VERR_TIMEOUT;
1390	break;
1391	default:
1392	rc = VERR_DEV_IO_ERROR;
1393	}
1394
1395	if (pcbBuf)
1396	*pcbBuf = cbBuf - pDeviceCCB->csio.resid;
1397
1398	if (pbSense)
1399	memcpy(pbSense, &pDeviceCCB->csio.sense_data,
1400	cbSense - pDeviceCCB->csio.sense_resid);
1401	}
1402	else
1403	rc = RTErrConvertFromErrno(errno);
1404	}
1405	# endif
1406
1407	return rc;
1408	}
1409	#endif
1410
1411
1412	/**
1413	* Media present.
1414	* Query the size and notify the above driver / device.
1415	*
1416	* @param pThis The instance data.
1417	*/
1418	int DRVHostBaseMediaPresent(PDRVHOSTBASE pThis)
1419	{
1420	/*
1421	* Open the drive.
1422	*/
1423	int rc = drvHostBaseReopen(pThis);
1424	if (RT_FAILURE(rc))
1425	return rc;
1426
1427	/*
1428	* Determine the size.
1429	*/
1430	uint64_t cb;
1431	rc = pThis->pfnGetMediaSize(pThis, &cb);
1432	if (RT_FAILURE(rc))
1433	{
1434	LogFlow(("%s-%d: failed to figure media size of %s, rc=%Rrc\n",
1435	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->pszDevice, rc));
1436	return rc;
1437	}
1438
1439	/*
1440	* Update the data and inform the unit.
1441	*/
1442	pThis->cbSize = cb;
1443	pThis->fMediaPresent = true;
1444	if (pThis->pDrvMountNotify)
1445	pThis->pDrvMountNotify->pfnMountNotify(pThis->pDrvMountNotify);
1446	LogFlow(("%s-%d: drvHostBaseMediaPresent: cbSize=%lld (%#llx)\n",
1447	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->cbSize, pThis->cbSize));
1448	return VINF_SUCCESS;
1449	}
1450
1451
1452	/**
1453	* Media no longer present.
1454	* @param pThis The instance data.
1455	*/
1456	void DRVHostBaseMediaNotPresent(PDRVHOSTBASE pThis)
1457	{
1458	pThis->fMediaPresent = false;
1459	pThis->fLocked = false;
1460	pThis->PCHSGeometry.cCylinders = 0;
1461	pThis->PCHSGeometry.cHeads = 0;
1462	pThis->PCHSGeometry.cSectors = 0;
1463	pThis->LCHSGeometry.cCylinders = 0;
1464	pThis->LCHSGeometry.cHeads = 0;
1465	pThis->LCHSGeometry.cSectors = 0;
1466	if (pThis->pDrvMountNotify)
1467	pThis->pDrvMountNotify->pfnUnmountNotify(pThis->pDrvMountNotify);
1468	}
1469
1470
1471	#ifdef RT_OS_WINDOWS
1472
1473	/**
1474	* Window procedure for the invisible window used to catch the WM_DEVICECHANGE broadcasts.
1475	*/
1476	static LRESULT CALLBACK DeviceChangeWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1477	{
1478	Log2(("DeviceChangeWindowProc: hwnd=%08x uMsg=%08x\n", hwnd, uMsg));
1479	if (uMsg == WM_DESTROY)
1480	{
1481	PDRVHOSTBASE pThis = (PDRVHOSTBASE)GetWindowLong(hwnd, GWLP_USERDATA);
1482	if (pThis)
1483	ASMAtomicXchgSize(&pThis->hwndDeviceChange, NULL);
1484	PostQuitMessage(0);
1485	}
1486
1487	if (uMsg != WM_DEVICECHANGE)
1488	return DefWindowProc(hwnd, uMsg, wParam, lParam);
1489
1490	PDEV_BROADCAST_HDR lpdb = (PDEV_BROADCAST_HDR)lParam;
1491	PDRVHOSTBASE pThis = (PDRVHOSTBASE)GetWindowLongPtr(hwnd, GWLP_USERDATA);
1492	Assert(pThis);
1493	if (pThis == NULL)
1494	return 0;
1495
1496	switch (wParam)
1497	{
1498	case DBT_DEVICEARRIVAL:
1499	case DBT_DEVICEREMOVECOMPLETE:
1500	// Check whether a CD or DVD was inserted into or removed from a drive.
1501	if (lpdb->dbch_devicetype == DBT_DEVTYP_VOLUME)
1502	{
1503	PDEV_BROADCAST_VOLUME lpdbv = (PDEV_BROADCAST_VOLUME)lpdb;
1504	if ( (lpdbv->dbcv_flags & DBTF_MEDIA)
1505	&& (pThis->fUnitMask & lpdbv->dbcv_unitmask))
1506	{
1507	RTCritSectEnter(&pThis->CritSect);
1508	if (wParam == DBT_DEVICEARRIVAL)
1509	{
1510	int cRetries = 10;
1511	int rc = DRVHostBaseMediaPresent(pThis);
1512	while (RT_FAILURE(rc) && cRetries-- > 0)
1513	{
1514	RTThreadSleep(50);
1515	rc = DRVHostBaseMediaPresent(pThis);
1516	}
1517	}
1518	else
1519	DRVHostBaseMediaNotPresent(pThis);
1520	RTCritSectLeave(&pThis->CritSect);
1521	}
1522	}
1523	break;
1524	}
1525	return TRUE;
1526	}
1527
1528	#endif /* RT_OS_WINDOWS */
1529
1530
1531	/**
1532	* This thread will periodically poll the device for media presence.
1533	*
1534	* @returns Ignored.
1535	* @param ThreadSelf Handle of this thread. Ignored.
1536	* @param pvUser Pointer to the driver instance structure.
1537	*/
1538	static DECLCALLBACK(int) drvHostBaseMediaThread(RTTHREAD ThreadSelf, void *pvUser)
1539	{
1540	PDRVHOSTBASE pThis = (PDRVHOSTBASE)pvUser;
1541	LogFlow(("%s-%d: drvHostBaseMediaThread: ThreadSelf=%p pvUser=%p\n",
1542	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, ThreadSelf, pvUser));
1543	#ifdef RT_OS_WINDOWS
1544	static WNDCLASS s_classDeviceChange = {0};
1545	static ATOM s_hAtomDeviceChange = 0;
1546
1547	/*
1548	* Register custom window class.
1549	*/
1550	if (s_hAtomDeviceChange == 0)
1551	{
1552	memset(&s_classDeviceChange, 0, sizeof(s_classDeviceChange));
1553	s_classDeviceChange.lpfnWndProc = DeviceChangeWindowProc;
1554	s_classDeviceChange.lpszClassName = "VBOX_DeviceChangeClass";
1555	s_classDeviceChange.hInstance = GetModuleHandle("VBOXDD.DLL");
1556	Assert(s_classDeviceChange.hInstance);
1557	s_hAtomDeviceChange = RegisterClassA(&s_classDeviceChange);
1558	Assert(s_hAtomDeviceChange);
1559	}
1560
1561	/*
1562	* Create Window w/ the pThis as user data.
1563	*/
1564	HWND hwnd = CreateWindow((LPCTSTR)s_hAtomDeviceChange, "", WS_POPUP, 0, 0, 0, 0, 0, 0, s_classDeviceChange.hInstance, 0);
1565	AssertMsg(hwnd, ("CreateWindow failed with %d\n", GetLastError()));
1566	SetWindowLongPtr(hwnd, GWLP_USERDATA, (LONG_PTR)pThis);
1567
1568	/*
1569	* Signal the waiting EMT thread that everything went fine.
1570	*/
1571	ASMAtomicXchgSize(&pThis->hwndDeviceChange, hwnd);
1572	RTThreadUserSignal(ThreadSelf);
1573	if (!hwnd)
1574	{
1575	LogFlow(("%s-%d: drvHostBaseMediaThread: returns VERR_GENERAL_FAILURE\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance));
1576	return VERR_GENERAL_FAILURE;
1577	}
1578	LogFlow(("%s-%d: drvHostBaseMediaThread: Created hwndDeviceChange=%p\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, hwnd));
1579
1580	/*
1581	* Message pump.
1582	*/
1583	MSG Msg;
1584	BOOL fRet;
1585	while ((fRet = GetMessage(&Msg, NULL, 0, 0)) != FALSE)
1586	{
1587	if (fRet != -1)
1588	{
1589	TranslateMessage(&Msg);
1590	DispatchMessage(&Msg);
1591	}
1592	//else: handle the error and possibly exit
1593	}
1594	Assert(!pThis->hwndDeviceChange);
1595
1596	#else /* !RT_OS_WINDOWS */
1597	bool fFirst = true;
1598	int cRetries = 10;
1599	while (!pThis->fShutdownPoller)
1600	{
1601	/*
1602	* Perform the polling (unless we've run out of 50ms retries).
1603	*/
1604	if ( pThis->pfnPoll
1605	&& cRetries-- > 0)
1606	{
1607
1608	int rc = pThis->pfnPoll(pThis);
1609	if (RT_FAILURE(rc))
1610	{
1611	RTSemEventWait(pThis->EventPoller, 50);
1612	continue;
1613	}
1614	}
1615
1616	/*
1617	* Signal EMT after the first go.
1618	*/
1619	if (fFirst)
1620	{
1621	RTThreadUserSignal(ThreadSelf);
1622	fFirst = false;
1623	}
1624
1625	/*
1626	* Sleep.
1627	*/
1628	int rc = RTSemEventWait(pThis->EventPoller, pThis->cMilliesPoller);
1629	if ( RT_FAILURE(rc)
1630	&& rc != VERR_TIMEOUT)
1631	{
1632	AssertMsgFailed(("rc=%Rrc\n", rc));
1633	pThis->ThreadPoller = NIL_RTTHREAD;
1634	LogFlow(("drvHostBaseMediaThread: returns %Rrc\n", rc));
1635	return rc;
1636	}
1637	cRetries = 10;
1638	}
1639
1640	#endif /* !RT_OS_WINDOWS */
1641
1642	/* (Don't clear the thread handle here, the destructor thread is using it to wait.) */
1643	LogFlow(("%s-%d: drvHostBaseMediaThread: returns VINF_SUCCESS\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance));
1644	return VINF_SUCCESS;
1645	}
1646
1647	/* -=-=-=-=- driver interface -=-=-=-=- */
1648
1649
1650	/**
1651	* Done state load operation.
1652	*
1653	* @returns VBox load code.
1654	* @param pDrvIns Driver instance of the driver which registered the data unit.
1655	* @param pSSM SSM operation handle.
1656	*/
1657	static DECLCALLBACK(int) drvHostBaseLoadDone(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM)
1658	{
1659	PDRVHOSTBASE pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTBASE);
1660	LogFlow(("%s-%d: drvHostBaseMediaThread:\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance));
1661	RTCritSectEnter(&pThis->CritSect);
1662
1663	/*
1664	* Tell the device/driver above us that the media status is uncertain.
1665	*/
1666	if (pThis->pDrvMountNotify)
1667	{
1668	pThis->pDrvMountNotify->pfnUnmountNotify(pThis->pDrvMountNotify);
1669	if (pThis->fMediaPresent)
1670	pThis->pDrvMountNotify->pfnMountNotify(pThis->pDrvMountNotify);
1671	}
1672
1673	RTCritSectLeave(&pThis->CritSect);
1674	return VINF_SUCCESS;
1675	}
1676
1677
1678	/** @copydoc FNPDMDRVDESTRUCT */
1679	DECLCALLBACK(void) DRVHostBaseDestruct(PPDMDRVINS pDrvIns)
1680	{
1681	PDRVHOSTBASE pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTBASE);
1682	LogFlow(("%s-%d: drvHostBaseDestruct: iInstance=%d\n", pDrvIns->pReg->szName, pDrvIns->iInstance, pDrvIns->iInstance));
1683
1684	/*
1685	* Terminate the thread.
1686	*/
1687	if (pThis->ThreadPoller != NIL_RTTHREAD)
1688	{
1689	pThis->fShutdownPoller = true;
1690	int rc;
1691	int cTimes = 50;
1692	do
1693	{
1694	#ifdef RT_OS_WINDOWS
1695	if (pThis->hwndDeviceChange)
1696	PostMessage(pThis->hwndDeviceChange, WM_CLOSE, 0, 0); /* default win proc will destroy the window */
1697	#else
1698	RTSemEventSignal(pThis->EventPoller);
1699	#endif
1700	rc = RTThreadWait(pThis->ThreadPoller, 100, NULL);
1701	} while (cTimes-- > 0 && rc == VERR_TIMEOUT);
1702
1703	if (!rc)
1704	pThis->ThreadPoller = NIL_RTTHREAD;
1705	}
1706
1707	/*
1708	* Unlock the drive if we've locked it or we're in passthru mode.
1709	*/
1710	#ifdef RT_OS_DARWIN
1711	if ( ( pThis->fLocked
1712	\|\| pThis->IBlock.pfnSendCmd)
1713	&& pThis->ppScsiTaskDI
1714	#else /** @todo Check if the other guys can mix pfnDoLock with scsi passthru.
1715	* (We're currently not unlocking the device after use. See todo in DevATA.cpp.) */
1716	if ( pThis->fLocked
1717	&& pThis->FileDevice != NIL_RTFILE
1718	#endif
1719	&& pThis->pfnDoLock)
1720	{
1721	int rc = pThis->pfnDoLock(pThis, false);
1722	if (RT_SUCCESS(rc))
1723	pThis->fLocked = false;
1724	}
1725
1726	/*
1727	* Cleanup the other resources.
1728	*/
1729	#ifdef RT_OS_WINDOWS
1730	if (pThis->hwndDeviceChange)
1731	{
1732	if (SetWindowLongPtr(pThis->hwndDeviceChange, GWLP_USERDATA, 0) == (LONG_PTR)pThis)
1733	PostMessage(pThis->hwndDeviceChange, WM_CLOSE, 0, 0); /* default win proc will destroy the window */
1734	pThis->hwndDeviceChange = NULL;
1735	}
1736	#else
1737	if (pThis->EventPoller != NULL)
1738	{
1739	RTSemEventDestroy(pThis->EventPoller);
1740	pThis->EventPoller = NULL;
1741	}
1742	#endif
1743
1744	#ifdef RT_OS_DARWIN
1745	/*
1746	* The unclaiming doesn't seem to mean much, the DVD is actually
1747	* remounted when we release exclusive access. I'm not quite sure
1748	* if I should put the unclaim first or not...
1749	*
1750	* Anyway, that it's automatically remounted very good news for us,
1751	* because that means we don't have to mess with that ourselves. Of
1752	* course there is the unlikely scenario that we've succeeded in claiming
1753	* and umount the DVD but somehow failed to gain exclusive scsi access...
1754	*/
1755	if (pThis->ppScsiTaskDI)
1756	{
1757	LogFlow(("%s-%d: releasing exclusive scsi access!\n", pDrvIns->pReg->szName, pDrvIns->iInstance));
1758	(*pThis->ppScsiTaskDI)->ReleaseExclusiveAccess(pThis->ppScsiTaskDI);
1759	(*pThis->ppScsiTaskDI)->Release(pThis->ppScsiTaskDI);
1760	pThis->ppScsiTaskDI = NULL;
1761	}
1762	if (pThis->pDADisk)
1763	{
1764	LogFlow(("%s-%d: unclaiming the disk!\n", pDrvIns->pReg->szName, pDrvIns->iInstance));
1765	DADiskUnclaim(pThis->pDADisk);
1766	CFRelease(pThis->pDADisk);
1767	pThis->pDADisk = NULL;
1768	}
1769	if (pThis->ppMMCDI)
1770	{
1771	LogFlow(("%s-%d: releasing the MMC object!\n", pDrvIns->pReg->szName, pDrvIns->iInstance));
1772	(*pThis->ppMMCDI)->Release(pThis->ppMMCDI);
1773	pThis->ppMMCDI = NULL;
1774	}
1775	if (pThis->MasterPort)
1776	{
1777	mach_port_deallocate(mach_task_self(), pThis->MasterPort);
1778	pThis->MasterPort = NULL;
1779	}
1780	if (pThis->pDASession)
1781	{
1782	LogFlow(("%s-%d: releasing the DA session!\n", pDrvIns->pReg->szName, pDrvIns->iInstance));
1783	CFRelease(pThis->pDASession);
1784	pThis->pDASession = NULL;
1785	}
1786	#else
1787	if (pThis->FileDevice != NIL_RTFILE)
1788	{
1789	int rc = RTFileClose(pThis->FileDevice);
1790	AssertRC(rc);
1791	pThis->FileDevice = NIL_RTFILE;
1792	}
1793	#endif
1794
1795	#ifdef RT_OS_SOLARIS
1796	if (pThis->FileRawDevice != NIL_RTFILE)
1797	{
1798	int rc = RTFileClose(pThis->FileRawDevice);
1799	AssertRC(rc);
1800	pThis->FileRawDevice = NIL_RTFILE;
1801	}
1802
1803	if (pThis->pszRawDeviceOpen)
1804	{
1805	RTStrFree(pThis->pszRawDeviceOpen);
1806	pThis->pszRawDeviceOpen = NULL;
1807	}
1808	#endif
1809
1810	if (pThis->pszDevice)
1811	{
1812	MMR3HeapFree(pThis->pszDevice);
1813	pThis->pszDevice = NULL;
1814	}
1815
1816	if (pThis->pszDeviceOpen)
1817	{
1818	RTStrFree(pThis->pszDeviceOpen);
1819	pThis->pszDeviceOpen = NULL;
1820	}
1821
1822	/* Forget about the notifications. */
1823	pThis->pDrvMountNotify = NULL;
1824
1825	/* Leave the instance operational if this is just a cleanup of the state
1826	* after an attach error happened. So don't destroy the critsect then. */
1827	if (!pThis->fKeepInstance && RTCritSectIsInitialized(&pThis->CritSect))
1828	RTCritSectDelete(&pThis->CritSect);
1829	LogFlow(("%s-%d: drvHostBaseDestruct completed\n", pDrvIns->pReg->szName, pDrvIns->iInstance));
1830	}
1831
1832
1833	/**
1834	* Initializes the instance data (init part 1).
1835	*
1836	* The driver which derives from this base driver will override function pointers after
1837	* calling this method, and complete the construction by calling DRVHostBaseInitFinish().
1838	*
1839	* On failure call DRVHostBaseDestruct().
1840	*
1841	* @returns VBox status code.
1842	* @param pDrvIns Driver instance.
1843	* @param pCfg Configuration handle.
1844	* @param enmType Device type.
1845	*/
1846	int DRVHostBaseInitData(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, PDMBLOCKTYPE enmType)
1847	{
1848	PDRVHOSTBASE pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTBASE);
1849	LogFlow(("%s-%d: DRVHostBaseInitData: iInstance=%d\n", pDrvIns->pReg->szName, pDrvIns->iInstance, pDrvIns->iInstance));
1850
1851	/*
1852	* Initialize most of the data members.
1853	*/
1854	pThis->pDrvIns = pDrvIns;
1855	pThis->fKeepInstance = false;
1856	pThis->ThreadPoller = NIL_RTTHREAD;
1857	#ifdef RT_OS_DARWIN
1858	pThis->MasterPort = NULL;
1859	pThis->ppMMCDI = NULL;
1860	pThis->ppScsiTaskDI = NULL;
1861	pThis->cbBlock = 0;
1862	pThis->pDADisk = NULL;
1863	pThis->pDASession = NULL;
1864	#else
1865	pThis->FileDevice = NIL_RTFILE;
1866	#endif
1867	#ifdef RT_OS_SOLARIS
1868	pThis->FileRawDevice = NIL_RTFILE;
1869	#endif
1870	pThis->enmType = enmType;
1871	//pThis->cErrors = 0;
1872
1873	pThis->pfnGetMediaSize = drvHostBaseGetMediaSize;
1874
1875	/* IBase. */
1876	pDrvIns->IBase.pfnQueryInterface = drvHostBaseQueryInterface;
1877
1878	/* IBlock. */
1879	pThis->IBlock.pfnRead = drvHostBaseRead;
1880	pThis->IBlock.pfnWrite = drvHostBaseWrite;
1881	pThis->IBlock.pfnFlush = drvHostBaseFlush;
1882	pThis->IBlock.pfnIsReadOnly = drvHostBaseIsReadOnly;
1883	pThis->IBlock.pfnGetSize = drvHostBaseGetSize;
1884	pThis->IBlock.pfnGetType = drvHostBaseGetType;
1885	pThis->IBlock.pfnGetUuid = drvHostBaseGetUuid;
1886
1887	/* IBlockBios. */
1888	pThis->IBlockBios.pfnGetPCHSGeometry = drvHostBaseGetPCHSGeometry;
1889	pThis->IBlockBios.pfnSetPCHSGeometry = drvHostBaseSetPCHSGeometry;
1890	pThis->IBlockBios.pfnGetLCHSGeometry = drvHostBaseGetLCHSGeometry;
1891	pThis->IBlockBios.pfnSetLCHSGeometry = drvHostBaseSetLCHSGeometry;
1892	pThis->IBlockBios.pfnIsVisible = drvHostBaseIsVisible;
1893	pThis->IBlockBios.pfnGetType = drvHostBaseBiosGetType;
1894
1895	/* IMount. */
1896	pThis->IMount.pfnMount = drvHostBaseMount;
1897	pThis->IMount.pfnUnmount = drvHostBaseUnmount;
1898	pThis->IMount.pfnIsMounted = drvHostBaseIsMounted;
1899	pThis->IMount.pfnLock = drvHostBaseLock;
1900	pThis->IMount.pfnUnlock = drvHostBaseUnlock;
1901	pThis->IMount.pfnIsLocked = drvHostBaseIsLocked;
1902
1903	/*
1904	* Get the IBlockPort & IMountNotify interfaces of the above driver/device.
1905	*/
1906	pThis->pDrvBlockPort = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMIBLOCKPORT);
1907	if (!pThis->pDrvBlockPort)
1908	{
1909	AssertMsgFailed(("Configuration error: No block port interface above!\n"));
1910	return VERR_PDM_MISSING_INTERFACE_ABOVE;
1911	}
1912	pThis->pDrvMountNotify = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMIMOUNTNOTIFY);
1913
1914	/*
1915	* Query configuration.
1916	*/
1917	/* Device */
1918	int rc = CFGMR3QueryStringAlloc(pCfg, "Path", &pThis->pszDevice);
1919	if (RT_FAILURE(rc))
1920	{
1921	AssertMsgFailed(("Configuration error: query for \"Path\" string returned %Rra.\n", rc));
1922	return rc;
1923	}
1924
1925	/* Mountable */
1926	uint32_t u32;
1927	rc = CFGMR3QueryU32(pCfg, "Interval", &u32);
1928	if (RT_SUCCESS(rc))
1929	pThis->cMilliesPoller = u32;
1930	else if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1931	pThis->cMilliesPoller = 1000;
1932	else if (RT_FAILURE(rc))
1933	{
1934	AssertMsgFailed(("Configuration error: Query \"Mountable\" resulted in %Rrc.\n", rc));
1935	return rc;
1936	}
1937
1938	/* ReadOnly */
1939	rc = CFGMR3QueryBool(pCfg, "ReadOnly", &pThis->fReadOnlyConfig);
1940	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1941	pThis->fReadOnlyConfig = enmType == PDMBLOCKTYPE_DVD \|\| enmType == PDMBLOCKTYPE_CDROM ? true : false;
1942	else if (RT_FAILURE(rc))
1943	{
1944	AssertMsgFailed(("Configuration error: Query \"ReadOnly\" resulted in %Rrc.\n", rc));
1945	return rc;
1946	}
1947
1948	/* Locked */
1949	rc = CFGMR3QueryBool(pCfg, "Locked", &pThis->fLocked);
1950	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1951	pThis->fLocked = false;
1952	else if (RT_FAILURE(rc))
1953	{
1954	AssertMsgFailed(("Configuration error: Query \"Locked\" resulted in %Rrc.\n", rc));
1955	return rc;
1956	}
1957
1958	/* BIOS visible */
1959	rc = CFGMR3QueryBool(pCfg, "BIOSVisible", &pThis->fBiosVisible);
1960	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1961	pThis->fBiosVisible = true;
1962	else if (RT_FAILURE(rc))
1963	{
1964	AssertMsgFailed(("Configuration error: Query \"BIOSVisible\" resulted in %Rrc.\n", rc));
1965	return rc;
1966	}
1967
1968	/* Uuid */
1969	char *psz;
1970	rc = CFGMR3QueryStringAlloc(pCfg, "Uuid", &psz);
1971	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1972	RTUuidClear(&pThis->Uuid);
1973	else if (RT_SUCCESS(rc))
1974	{
1975	rc = RTUuidFromStr(&pThis->Uuid, psz);
1976	if (RT_FAILURE(rc))
1977	{
1978	AssertMsgFailed(("Configuration error: Uuid from string failed on \"%s\", rc=%Rrc.\n", psz, rc));
1979	MMR3HeapFree(psz);
1980	return rc;
1981	}
1982	MMR3HeapFree(psz);
1983	}
1984	else
1985	{
1986	AssertMsgFailed(("Configuration error: Failed to obtain the uuid, rc=%Rrc.\n", rc));
1987	return rc;
1988	}
1989
1990	/* Define whether attach failure is an error (default) or not. */
1991	bool fAttachFailError;
1992	rc = CFGMR3QueryBool(pCfg, "AttachFailError", &fAttachFailError);
1993	if (RT_FAILURE(rc))
1994	fAttachFailError = true;
1995	pThis->fAttachFailError = fAttachFailError;
1996
1997	/* name to open & watch for */
1998	#ifdef RT_OS_WINDOWS
1999	int iBit = RT_C_TO_UPPER(pThis->pszDevice[0]) - 'A';
2000	if ( iBit > 'Z' - 'A'
2001	\|\| pThis->pszDevice[1] != ':'
2002	\|\| pThis->pszDevice[2])
2003	{
2004	AssertMsgFailed(("Configuration error: Invalid drive specification: '%s'\n", pThis->pszDevice));
2005	return VERR_INVALID_PARAMETER;
2006	}
2007	pThis->fUnitMask = 1 << iBit;
2008	RTStrAPrintf(&pThis->pszDeviceOpen, "\\\\.\\%s", pThis->pszDevice);
2009
2010	#elif defined(RT_OS_SOLARIS)
2011	char *pszBlockDevName = getfullblkname(pThis->pszDevice);
2012	if (!pszBlockDevName)
2013	return VERR_NO_MEMORY;
2014	pThis->pszDeviceOpen = RTStrDup(pszBlockDevName); /* for RTStrFree() */
2015	free(pszBlockDevName);
2016	pThis->pszRawDeviceOpen = RTStrDup(pThis->pszDevice);
2017
2018	#else
2019	pThis->pszDeviceOpen = RTStrDup(pThis->pszDevice);
2020	#endif
2021
2022	if (!pThis->pszDeviceOpen)
2023	return VERR_NO_MEMORY;
2024
2025	return VINF_SUCCESS;
2026	}
2027
2028
2029	/**
2030	* Do the 2nd part of the init after the derived driver has overridden the defaults.
2031	*
2032	* On failure call DRVHostBaseDestruct().
2033	*
2034	* @returns VBox status code.
2035	* @param pThis Pointer to the instance data.
2036	*/
2037	int DRVHostBaseInitFinish(PDRVHOSTBASE pThis)
2038	{
2039	int src = VINF_SUCCESS;
2040	PPDMDRVINS pDrvIns = pThis->pDrvIns;
2041
2042	/* log config summary */
2043	Log(("%s-%d: pszDevice='%s' (%s) cMilliesPoller=%d fReadOnlyConfig=%d fLocked=%d fBIOSVisible=%d Uuid=%RTuuid\n",
2044	pDrvIns->pReg->szName, pDrvIns->iInstance, pThis->pszDevice, pThis->pszDeviceOpen, pThis->cMilliesPoller,
2045	pThis->fReadOnlyConfig, pThis->fLocked, pThis->fBiosVisible, &pThis->Uuid));
2046
2047	/*
2048	* Check that there are no drivers below us.
2049	*/
2050	AssertMsgReturn(PDMDrvHlpNoAttach(pDrvIns) == VERR_PDM_NO_ATTACHED_DRIVER,
2051	("Configuration error: Not possible to attach anything to this driver!\n"),
2052	VERR_PDM_DRVINS_NO_ATTACH);
2053
2054	/*
2055	* Register saved state.
2056	*/
2057	int rc = PDMDrvHlpSSMRegisterLoadDone(pDrvIns, drvHostBaseLoadDone);
2058	if (RT_FAILURE(rc))
2059	return rc;
2060
2061	/*
2062	* Verify type.
2063	*/
2064	#ifdef RT_OS_WINDOWS
2065	UINT uDriveType = GetDriveType(pThis->pszDevice);
2066	switch (pThis->enmType)
2067	{
2068	case PDMBLOCKTYPE_FLOPPY_360:
2069	case PDMBLOCKTYPE_FLOPPY_720:
2070	case PDMBLOCKTYPE_FLOPPY_1_20:
2071	case PDMBLOCKTYPE_FLOPPY_1_44:
2072	case PDMBLOCKTYPE_FLOPPY_2_88:
2073	if (uDriveType != DRIVE_REMOVABLE)
2074	{
2075	AssertMsgFailed(("Configuration error: '%s' is not a floppy (type=%d)\n",
2076	pThis->pszDevice, uDriveType));
2077	return VERR_INVALID_PARAMETER;
2078	}
2079	break;
2080	case PDMBLOCKTYPE_CDROM:
2081	case PDMBLOCKTYPE_DVD:
2082	if (uDriveType != DRIVE_CDROM)
2083	{
2084	AssertMsgFailed(("Configuration error: '%s' is not a cdrom (type=%d)\n",
2085	pThis->pszDevice, uDriveType));
2086	return VERR_INVALID_PARAMETER;
2087	}
2088	break;
2089	case PDMBLOCKTYPE_HARD_DISK:
2090	default:
2091	AssertMsgFailed(("enmType=%d\n", pThis->enmType));
2092	return VERR_INVALID_PARAMETER;
2093	}
2094	#endif
2095
2096	/*
2097	* Open the device.
2098	*/
2099	#if defined(RT_OS_DARWIN)
2100	rc = drvHostBaseOpen(pThis, NULL, pThis->fReadOnlyConfig);
2101	#else
2102	rc = drvHostBaseReopen(pThis);
2103	#endif
2104	if (RT_FAILURE(rc))
2105	{
2106	char *pszDevice = pThis->pszDevice;
2107	#ifndef RT_OS_DARWIN
2108	char szPathReal[256];
2109	if ( RTPathExists(pszDevice)
2110	&& RT_SUCCESS(RTPathReal(pszDevice, szPathReal, sizeof(szPathReal))))
2111	pszDevice = szPathReal;
2112	pThis->FileDevice = NIL_RTFILE;
2113	#endif
2114	#ifdef RT_OS_SOLARIS
2115	pThis->FileRawDevice = NIL_RTFILE;
2116	#endif
2117
2118	/*
2119	* Disable CD/DVD passthrough in case it was enabled. Would cause
2120	* weird failures later when the guest issues commands. These would
2121	* all fail because of the invalid file handle. So use the normal
2122	* virtual CD/DVD code, which deals more gracefully with unavailable
2123	* "media" - actually a complete drive in this case.
2124	*/
2125	pThis->IBlock.pfnSendCmd = NULL;
2126	AssertMsgFailed(("Could not open host device %s, rc=%Rrc\n", pszDevice, rc));
2127	switch (rc)
2128	{
2129	case VERR_ACCESS_DENIED:
2130	return PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS,
2131	#ifdef RT_OS_LINUX
2132	N_("Cannot open host device '%s' for %s access. Check the permissions "
2133	"of that device ('/bin/ls -l %s'): Most probably you need to be member "
2134	"of the device group. Make sure that you logout/login after changing "
2135	"the group settings of the current user"),
2136	#else
2137	N_("Cannot open host device '%s' for %s access. Check the permissions "
2138	"of that device"),
2139	#endif
2140	pszDevice, pThis->fReadOnlyConfig ? "readonly" : "read/write",
2141	pszDevice);
2142	default:
2143	{
2144	if (pThis->fAttachFailError)
2145	return rc;
2146	int erc = PDMDrvHlpVMSetRuntimeError(pDrvIns, 0 /fFlags/,
2147	"DrvHost_MOUNTFAIL",
2148	N_("Cannot attach to host device '%s'"), pszDevice);
2149	AssertRC(erc);
2150	src = rc;
2151	}
2152	}
2153	}
2154	#ifdef RT_OS_WINDOWS
2155	if (RT_SUCCESS(src))
2156	DRVHostBaseMediaPresent(pThis);
2157	#endif
2158
2159	/*
2160	* Lock the drive if that's required by the configuration.
2161	*/
2162	if (pThis->fLocked)
2163	{
2164	if (pThis->pfnDoLock)
2165	rc = pThis->pfnDoLock(pThis, true);
2166	if (RT_FAILURE(rc))
2167	{
2168	AssertMsgFailed(("Failed to lock the dvd drive. rc=%Rrc\n", rc));
2169	return rc;
2170	}
2171	}
2172
2173	#ifndef RT_OS_WINDOWS
2174	if (RT_SUCCESS(src))
2175	{
2176	/*
2177	* Create the event semaphore which the poller thread will wait on.
2178	*/
2179	rc = RTSemEventCreate(&pThis->EventPoller);
2180	if (RT_FAILURE(rc))
2181	return rc;
2182	}
2183	#endif
2184
2185	/*
2186	* Initialize the critical section used for serializing the access to the media.
2187	*/
2188	rc = RTCritSectInit(&pThis->CritSect);
2189	if (RT_FAILURE(rc))
2190	return rc;
2191
2192	if (RT_SUCCESS(src))
2193	{
2194	/*
2195	* Start the thread which will poll for the media.
2196	*/
2197	rc = RTThreadCreate(&pThis->ThreadPoller, drvHostBaseMediaThread, pThis, 0,
2198	RTTHREADTYPE_INFREQUENT_POLLER, RTTHREADFLAGS_WAITABLE, "DVDMEDIA");
2199	if (RT_FAILURE(rc))
2200	{
2201	AssertMsgFailed(("Failed to create poller thread. rc=%Rrc\n", rc));
2202	return rc;
2203	}
2204
2205	/*
2206	* Wait for the thread to start up (!w32:) and do one detection loop.
2207	*/
2208	rc = RTThreadUserWait(pThis->ThreadPoller, 10000);
2209	AssertRC(rc);
2210	#ifdef RT_OS_WINDOWS
2211	if (!pThis->hwndDeviceChange)
2212	return VERR_GENERAL_FAILURE;
2213	#endif
2214	}
2215
2216	if (RT_FAILURE(src))
2217	return src;
2218	return rc;
2219	}
2220

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source: vbox/trunk/src/VBox/Devices/Storage/DrvHostBase.cpp@ 36797

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