DrvHostBase.cpp@ 60756

Last change on this file since 60756 was 59252, checked in by vboxsync, 9 years ago
pdmifs.h: Move the storage related interfaces (PDMIMEDIA, PDMIMOUNT, PDMISCSICONNECTOR, etc.) into a separate header to reduce the overall size of the header a bit
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 76.3 KB

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1	/* $Id: DrvHostBase.cpp 59252 2016-01-05 10:54:49Z vboxsync $ */
2	/** @file
3	* DrvHostBase - Host base drive access driver.
4	*/
5
6	/*
7	* Copyright (C) 2006-2015 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 <VBox/vmm/pdmstorageifs.h>
116	#include <iprt/assert.h>
117	#include <iprt/file.h>
118	#include <iprt/path.h>
119	#include <iprt/string.h>
120	#include <iprt/thread.h>
121	#include <iprt/semaphore.h>
122	#include <iprt/uuid.h>
123	#include <iprt/asm.h>
124	#include <iprt/critsect.h>
125	#include <iprt/ctype.h>
126	#include <iprt/mem.h>
127
128	#include "DrvHostBase.h"
129
130
131
132
133	/* -=-=-=-=- IBlock -=-=-=-=- */
134
135	/** @copydoc PDMIBLOCK::pfnRead */
136	static DECLCALLBACK(int) drvHostBaseRead(PPDMIMEDIA pInterface, uint64_t off, void *pvBuf, size_t cbRead)
137	{
138	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
139	LogFlow(("%s-%d: drvHostBaseRead: off=%#llx pvBuf=%p cbRead=%#x (%s)\n",
140	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, off, pvBuf, cbRead, pThis->pszDevice));
141	RTCritSectEnter(&pThis->CritSect);
142
143	/*
144	* Check the state.
145	*/
146	int rc;
147	#ifdef RT_OS_DARWIN
148	if ( pThis->fMediaPresent
149	&& pThis->ppScsiTaskDI
150	&& pThis->cbBlock)
151	#elif RT_OS_FREEBSD
152	if ( pThis->fMediaPresent
153	&& pThis->cbBlock)
154	#else
155	if (pThis->fMediaPresent)
156	#endif
157	{
158	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_FREEBSD)
159	/*
160	* Issue a READ(12) request.
161	*/
162	do
163	{
164	const uint32_t LBA = off / pThis->cbBlock;
165	AssertReturn(!(off % pThis->cbBlock), VERR_INVALID_PARAMETER);
166	uint32_t cbRead32 = cbRead > SCSI_MAX_BUFFER_SIZE
167	? SCSI_MAX_BUFFER_SIZE
168	: (uint32_t)cbRead;
169	const uint32_t cBlocks = cbRead32 / pThis->cbBlock;
170	AssertReturn(!(cbRead % pThis->cbBlock), VERR_INVALID_PARAMETER);
171	uint8_t abCmd[16] =
172	{
173	SCSI_READ_12, 0,
174	RT_BYTE4(LBA), RT_BYTE3(LBA), RT_BYTE2(LBA), RT_BYTE1(LBA),
175	RT_BYTE4(cBlocks), RT_BYTE3(cBlocks), RT_BYTE2(cBlocks), RT_BYTE1(cBlocks),
176	0, 0, 0, 0, 0
177	};
178	rc = DRVHostBaseScsiCmd(pThis, abCmd, 12, PDMMEDIATXDIR_FROM_DEVICE, pvBuf, &cbRead32, NULL, 0, 0);
179
180	off += cbRead32;
181	cbRead -= cbRead32;
182	pvBuf = (uint8_t *)pvBuf + cbRead32;
183	} while ((cbRead > 0) && RT_SUCCESS(rc));
184
185	#else
186	/*
187	* Seek and read.
188	*/
189	rc = RTFileReadAt(pThis->hFileDevice, off, pvBuf, cbRead, NULL);
190	if (RT_SUCCESS(rc))
191	{
192	Log2(("%s-%d: drvHostBaseRead: off=%#llx cbRead=%#x\n"
193	"%16.*Rhxd\n",
194	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, off, cbRead, cbRead, pvBuf));
195	}
196	else
197	Log(("%s-%d: drvHostBaseRead: RTFileReadAt(%RTfile, %#llx, %p, %#x) -> %Rrc ('%s')\n",
198	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->hFileDevice,
199	off, pvBuf, cbRead, rc, pThis->pszDevice));
200	#endif
201	}
202	else
203	rc = VERR_MEDIA_NOT_PRESENT;
204
205	RTCritSectLeave(&pThis->CritSect);
206	LogFlow(("%s-%d: drvHostBaseRead: returns %Rrc\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, rc));
207	return rc;
208	}
209
210
211	/** @copydoc PDMIBLOCK::pfnWrite */
212	static DECLCALLBACK(int) drvHostBaseWrite(PPDMIMEDIA pInterface, uint64_t off, const void *pvBuf, size_t cbWrite)
213	{
214	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
215	LogFlow(("%s-%d: drvHostBaseWrite: off=%#llx pvBuf=%p cbWrite=%#x (%s)\n",
216	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, off, pvBuf, cbWrite, pThis->pszDevice));
217	Log2(("%s-%d: drvHostBaseWrite: off=%#llx cbWrite=%#x\n"
218	"%16.*Rhxd\n",
219	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, off, cbWrite, cbWrite, pvBuf));
220	RTCritSectEnter(&pThis->CritSect);
221
222	/*
223	* Check the state.
224	*/
225	int rc;
226	if (!pThis->fReadOnly)
227	{
228	if (pThis->fMediaPresent)
229	{
230	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_FREEBSD)
231	/** @todo write support... */
232	rc = VERR_WRITE_PROTECT;
233
234	#else
235	/*
236	* Seek and write.
237	*/
238	rc = RTFileWriteAt(pThis->hFileDevice, off, pvBuf, cbWrite, NULL);
239	if (RT_FAILURE(rc))
240	Log(("%s-%d: drvHostBaseWrite: RTFileWriteAt(%RTfile, %#llx, %p, %#x) -> %Rrc ('%s')\n",
241	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->hFileDevice,
242	off, pvBuf, cbWrite, rc, pThis->pszDevice));
243	#endif
244	}
245	else
246	rc = VERR_MEDIA_NOT_PRESENT;
247	}
248	else
249	rc = VERR_WRITE_PROTECT;
250
251	RTCritSectLeave(&pThis->CritSect);
252	LogFlow(("%s-%d: drvHostBaseWrite: returns %Rrc\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, rc));
253	return rc;
254	}
255
256
257	/** @copydoc PDMIBLOCK::pfnFlush */
258	static DECLCALLBACK(int) drvHostBaseFlush(PPDMIMEDIA pInterface)
259	{
260	int rc;
261	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
262	LogFlow(("%s-%d: drvHostBaseFlush: (%s)\n",
263	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->pszDevice));
264	RTCritSectEnter(&pThis->CritSect);
265
266	if (pThis->fMediaPresent)
267	{
268	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_FREEBSD)
269	rc = VINF_SUCCESS;
270	/** @todo scsi device buffer flush... */
271	#else
272	rc = RTFileFlush(pThis->hFileDevice);
273	#endif
274	}
275	else
276	rc = VERR_MEDIA_NOT_PRESENT;
277
278	RTCritSectLeave(&pThis->CritSect);
279	LogFlow(("%s-%d: drvHostBaseFlush: returns %Rrc\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, rc));
280	return rc;
281	}
282
283
284	/** @copydoc PDMIBLOCK::pfnIsReadOnly */
285	static DECLCALLBACK(bool) drvHostBaseIsReadOnly(PPDMIMEDIA pInterface)
286	{
287	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
288	return pThis->fReadOnly;
289	}
290
291
292	/** @copydoc PDMIBLOCK::pfnGetSize */
293	static DECLCALLBACK(uint64_t) drvHostBaseGetSize(PPDMIMEDIA pInterface)
294	{
295	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
296	RTCritSectEnter(&pThis->CritSect);
297
298	uint64_t cb = 0;
299	if (pThis->fMediaPresent)
300	cb = pThis->cbSize;
301
302	RTCritSectLeave(&pThis->CritSect);
303	LogFlow(("%s-%d: drvHostBaseGetSize: returns %llu\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, cb));
304	return cb;
305	}
306
307
308	/** @copydoc PDMIBLOCK::pfnGetType */
309	static DECLCALLBACK(PDMMEDIATYPE) drvHostBaseGetType(PPDMIMEDIA pInterface)
310	{
311	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
312	LogFlow(("%s-%d: drvHostBaseGetType: returns %d\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->enmType));
313	return pThis->enmType;
314	}
315
316
317	/** @copydoc PDMIBLOCK::pfnGetUuid */
318	static DECLCALLBACK(int) drvHostBaseGetUuid(PPDMIMEDIA pInterface, PRTUUID pUuid)
319	{
320	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
321
322	*pUuid = pThis->Uuid;
323
324	LogFlow(("%s-%d: drvHostBaseGetUuid: returns VINF_SUCCESS *pUuid=%RTuuid\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pUuid));
325	return VINF_SUCCESS;
326	}
327
328
329	/** @copydoc PDMIBLOCK::pfnIoBufAlloc */
330	static DECLCALLBACK(int) drvHostBaseIoBufAlloc(PPDMIMEDIA pInterface, size_t cb, void **ppvNew)
331	{
332	LogFlowFunc(("\n"));
333	int rc;
334	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
335
336	void *pvNew = RTMemAlloc(cb);
337	if (RT_LIKELY(pvNew))
338	{
339	*ppvNew = pvNew;
340	rc = VINF_SUCCESS;
341	}
342	else
343	rc = VERR_NO_MEMORY;
344
345	LogFlowFunc(("returns %Rrc\n", rc));
346	return rc;
347	}
348
349	/** @copydoc PDMIBLOCK::pfnIoBufFree */
350	static DECLCALLBACK(int) drvHostBaseIoBufFree(PPDMIMEDIA pInterface, void *pv, size_t cb)
351	{
352	LogFlowFunc(("\n"));
353	int rc = VINF_SUCCESS;
354	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
355
356	NOREF(cb);
357	RTMemFree(pv);
358
359	LogFlowFunc(("returns %Rrc\n", rc));
360	return rc;
361	}
362
363
364	/** @copydoc PDMIBLOCKBIOS::pfnBiosGetPCHSGeometry */
365	static DECLCALLBACK(int) drvHostBaseGetPCHSGeometry(PPDMIMEDIA pInterface, PPDMMEDIAGEOMETRY pPCHSGeometry)
366	{
367	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
368	RTCritSectEnter(&pThis->CritSect);
369
370	int rc = VINF_SUCCESS;
371	if (pThis->fMediaPresent)
372	{
373	if ( pThis->PCHSGeometry.cCylinders > 0
374	&& pThis->PCHSGeometry.cHeads > 0
375	&& pThis->PCHSGeometry.cSectors > 0)
376	{
377	*pPCHSGeometry = pThis->PCHSGeometry;
378	}
379	else
380	rc = VERR_PDM_GEOMETRY_NOT_SET;
381	}
382	else
383	rc = VERR_PDM_MEDIA_NOT_MOUNTED;
384
385	RTCritSectLeave(&pThis->CritSect);
386	LogFlow(("%s-%d: %s: returns %Rrc CHS={%d,%d,%d}\n",
387	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, __FUNCTION__, rc, pThis->PCHSGeometry.cCylinders, pThis->PCHSGeometry.cHeads, pThis->PCHSGeometry.cSectors));
388	return rc;
389	}
390
391
392	/** @copydoc PDMIBLOCKBIOS::pfnBiosSetPCHSGeometry */
393	static DECLCALLBACK(int) drvHostBaseSetPCHSGeometry(PPDMIMEDIA pInterface, PCPDMMEDIAGEOMETRY pPCHSGeometry)
394	{
395	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
396	LogFlow(("%s-%d: %s: cCylinders=%d cHeads=%d cSectors=%d\n",
397	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, __FUNCTION__, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));
398	RTCritSectEnter(&pThis->CritSect);
399
400	int rc = VINF_SUCCESS;
401	if (pThis->fMediaPresent)
402	{
403	pThis->PCHSGeometry = *pPCHSGeometry;
404	}
405	else
406	{
407	AssertMsgFailed(("Invalid state! Not mounted!\n"));
408	rc = VERR_PDM_MEDIA_NOT_MOUNTED;
409	}
410
411	RTCritSectLeave(&pThis->CritSect);
412	return rc;
413	}
414
415
416	/** @copydoc PDMIBLOCKBIOS::pfnGetLCHSGeometry */
417	static DECLCALLBACK(int) drvHostBaseGetLCHSGeometry(PPDMIMEDIA pInterface, PPDMMEDIAGEOMETRY pLCHSGeometry)
418	{
419	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
420	RTCritSectEnter(&pThis->CritSect);
421
422	int rc = VINF_SUCCESS;
423	if (pThis->fMediaPresent)
424	{
425	if ( pThis->LCHSGeometry.cCylinders > 0
426	&& pThis->LCHSGeometry.cHeads > 0
427	&& pThis->LCHSGeometry.cSectors > 0)
428	{
429	*pLCHSGeometry = pThis->LCHSGeometry;
430	}
431	else
432	rc = VERR_PDM_GEOMETRY_NOT_SET;
433	}
434	else
435	rc = VERR_PDM_MEDIA_NOT_MOUNTED;
436
437	RTCritSectLeave(&pThis->CritSect);
438	LogFlow(("%s-%d: %s: returns %Rrc CHS={%d,%d,%d}\n",
439	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, __FUNCTION__, rc, pThis->LCHSGeometry.cCylinders, pThis->LCHSGeometry.cHeads, pThis->LCHSGeometry.cSectors));
440	return rc;
441	}
442
443
444	/** @copydoc PDMIBLOCKBIOS::pfnSetLCHSGeometry */
445	static DECLCALLBACK(int) drvHostBaseSetLCHSGeometry(PPDMIMEDIA pInterface, PCPDMMEDIAGEOMETRY pLCHSGeometry)
446	{
447	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
448	LogFlow(("%s-%d: %s: cCylinders=%d cHeads=%d cSectors=%d\n",
449	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, __FUNCTION__, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
450	RTCritSectEnter(&pThis->CritSect);
451
452	int rc = VINF_SUCCESS;
453	if (pThis->fMediaPresent)
454	{
455	pThis->LCHSGeometry = *pLCHSGeometry;
456	}
457	else
458	{
459	AssertMsgFailed(("Invalid state! Not mounted!\n"));
460	rc = VERR_PDM_MEDIA_NOT_MOUNTED;
461	}
462
463	RTCritSectLeave(&pThis->CritSect);
464	return rc;
465	}
466
467
468	/** @copydoc PDMIBLOCKBIOS::pfnIsVisible */
469	static DECLCALLBACK(bool) drvHostBaseIsVisible(PPDMIMEDIA pInterface)
470	{
471	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
472	return pThis->fBiosVisible;
473	}
474
475
476
477	/* -=-=-=-=- IMount -=-=-=-=- */
478
479	/** @copydoc PDMIMOUNT::pfnUnmount */
480	static DECLCALLBACK(int) drvHostBaseUnmount(PPDMIMOUNT pInterface, bool fForce, bool fEject)
481	{
482	/* While we're not mountable (see drvHostBaseMount), we're unmountable. */
483	PDRVHOSTBASE pThis = PDMIMOUNT_2_DRVHOSTBASE(pInterface);
484	RTCritSectEnter(&pThis->CritSect);
485
486	/*
487	* Validate state.
488	*/
489	int rc = VINF_SUCCESS;
490	if (!pThis->fLocked \|\| fForce)
491	{
492	/* Unlock drive if necessary. */
493	if (pThis->fLocked)
494	{
495	if (pThis->pfnDoLock)
496	rc = pThis->pfnDoLock(pThis, false);
497	if (RT_SUCCESS(rc))
498	pThis->fLocked = false;
499	}
500
501	/*
502	* Media is no longer present.
503	*/
504	DRVHostBaseMediaNotPresent(pThis);
505	}
506	else
507	{
508	Log(("drvHostiBaseUnmount: Locked\n"));
509	rc = VERR_PDM_MEDIA_LOCKED;
510	}
511
512	RTCritSectLeave(&pThis->CritSect);
513	LogFlow(("drvHostBaseUnmount: returns %Rrc\n", rc));
514	return rc;
515	}
516
517
518	/** @copydoc PDMIMOUNT::pfnIsMounted */
519	static DECLCALLBACK(bool) drvHostBaseIsMounted(PPDMIMOUNT pInterface)
520	{
521	PDRVHOSTBASE pThis = PDMIMOUNT_2_DRVHOSTBASE(pInterface);
522	RTCritSectEnter(&pThis->CritSect);
523
524	bool fRc = pThis->fMediaPresent;
525
526	RTCritSectLeave(&pThis->CritSect);
527	return fRc;
528	}
529
530
531	/** @copydoc PDMIMOUNT::pfnIsLocked */
532	static DECLCALLBACK(int) drvHostBaseLock(PPDMIMOUNT pInterface)
533	{
534	PDRVHOSTBASE pThis = PDMIMOUNT_2_DRVHOSTBASE(pInterface);
535	RTCritSectEnter(&pThis->CritSect);
536
537	int rc = VINF_SUCCESS;
538	if (!pThis->fLocked)
539	{
540	if (pThis->pfnDoLock)
541	rc = pThis->pfnDoLock(pThis, true);
542	if (RT_SUCCESS(rc))
543	pThis->fLocked = true;
544	}
545	else
546	LogFlow(("%s-%d: drvHostBaseLock: already locked\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance));
547
548	RTCritSectLeave(&pThis->CritSect);
549	LogFlow(("%s-%d: drvHostBaseLock: returns %Rrc\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, rc));
550	return rc;
551	}
552
553
554	/** @copydoc PDMIMOUNT::pfnIsLocked */
555	static DECLCALLBACK(int) drvHostBaseUnlock(PPDMIMOUNT pInterface)
556	{
557	PDRVHOSTBASE pThis = PDMIMOUNT_2_DRVHOSTBASE(pInterface);
558	RTCritSectEnter(&pThis->CritSect);
559
560	int rc = VINF_SUCCESS;
561	if (pThis->fLocked)
562	{
563	if (pThis->pfnDoLock)
564	rc = pThis->pfnDoLock(pThis, false);
565	if (RT_SUCCESS(rc))
566	pThis->fLocked = false;
567	}
568	else
569	LogFlow(("%s-%d: drvHostBaseUnlock: not locked\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance));
570
571	RTCritSectLeave(&pThis->CritSect);
572	LogFlow(("%s-%d: drvHostBaseUnlock: returns %Rrc\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, rc));
573	return rc;
574	}
575
576
577	/** @copydoc PDMIMOUNT::pfnIsLocked */
578	static DECLCALLBACK(bool) drvHostBaseIsLocked(PPDMIMOUNT pInterface)
579	{
580	PDRVHOSTBASE pThis = PDMIMOUNT_2_DRVHOSTBASE(pInterface);
581	RTCritSectEnter(&pThis->CritSect);
582
583	bool fRc = pThis->fLocked;
584
585	RTCritSectLeave(&pThis->CritSect);
586	return fRc;
587	}
588
589
590	/* -=-=-=-=- IBase -=-=-=-=- */
591
592	/**
593	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
594	*/
595	static DECLCALLBACK(void ) drvHostBaseQueryInterface(PPDMIBASE pInterface, const char pszIID)
596	{
597	PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
598	PDRVHOSTBASE pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTBASE);
599
600	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
601	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIMEDIA, &pThis->IMedia);
602	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIMOUNT, &pThis->IMount);
603	return NULL;
604	}
605
606
607	/* -=-=-=-=- poller thread -=-=-=-=- */
608
609	#ifdef RT_OS_DARWIN
610	/** The runloop input source name for the disk arbitration events. */
611	# 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. */
612
613	/**
614	* Gets the BSD Name (/dev/disc[0-9]+) for the service.
615	*
616	* This is done by recursing down the I/O registry until we hit upon an entry
617	* with a BSD Name. Usually we find it two levels down. (Further down under
618	* the IOCDPartitionScheme, the volume (slices) BSD Name is found. We don't
619	* seem to have to go this far fortunately.)
620	*
621	* @return VINF_SUCCESS if found, VERR_FILE_NOT_FOUND otherwise.
622	* @param Entry The current I/O registry entry reference.
623	* @param pszName Where to store the name. 128 bytes.
624	* @param cRecursions Number of recursions. This is used as an precaution
625	* just to limit the depth and avoid blowing the stack
626	* should we hit a bug or something.
627	*/
628	static int drvHostBaseGetBSDName(io_registry_entry_t Entry, char *pszName, unsigned cRecursions)
629	{
630	int rc = VERR_FILE_NOT_FOUND;
631	io_iterator_t Children = 0;
632	kern_return_t krc = IORegistryEntryGetChildIterator(Entry, kIOServicePlane, &Children);
633	if (krc == KERN_SUCCESS)
634	{
635	io_object_t Child;
636	while ( rc == VERR_FILE_NOT_FOUND
637	&& (Child = IOIteratorNext(Children)) != 0)
638	{
639	CFStringRef BSDNameStrRef = (CFStringRef)IORegistryEntryCreateCFProperty(Child, CFSTR(kIOBSDNameKey), kCFAllocatorDefault, 0);
640	if (BSDNameStrRef)
641	{
642	if (CFStringGetCString(BSDNameStrRef, pszName, 128, kCFStringEncodingUTF8))
643	rc = VINF_SUCCESS;
644	else
645	AssertFailed();
646	CFRelease(BSDNameStrRef);
647	}
648	if (rc == VERR_FILE_NOT_FOUND && cRecursions < 10)
649	rc = drvHostBaseGetBSDName(Child, pszName, cRecursions + 1);
650	IOObjectRelease(Child);
651	}
652	IOObjectRelease(Children);
653	}
654	return rc;
655	}
656
657
658	/**
659	* Callback notifying us that the async DADiskClaim()/DADiskUnmount call has completed.
660	*
661	* @param DiskRef The disk that was attempted claimed / unmounted.
662	* @param DissenterRef NULL on success, contains details on failure.
663	* @param pvContext Pointer to the return code variable.
664	*/
665	static void drvHostBaseDADoneCallback(DADiskRef DiskRef, DADissenterRef DissenterRef, void *pvContext)
666	{
667	int prc = (int )pvContext;
668	if (!DissenterRef)
669	*prc = 0;
670	else
671	*prc = DADissenterGetStatus(DissenterRef) ? DADissenterGetStatus(DissenterRef) : -1;
672	CFRunLoopStop(CFRunLoopGetCurrent());
673	}
674
675
676	/**
677	* Obtain exclusive access to the DVD device, umount it if necessary.
678	*
679	* @return VBox status code.
680	* @param pThis The driver instance.
681	* @param DVDService The DVD service object.
682	*/
683	static int drvHostBaseObtainExclusiveAccess(PDRVHOSTBASE pThis, io_object_t DVDService)
684	{
685	PPDMDRVINS pDrvIns = pThis->pDrvIns; NOREF(pDrvIns);
686
687	for (unsigned iTry = 0;; iTry++)
688	{
689	IOReturn irc = (*pThis->ppScsiTaskDI)->ObtainExclusiveAccess(pThis->ppScsiTaskDI);
690	if (irc == kIOReturnSuccess)
691	{
692	/*
693	* This is a bit weird, but if we unmounted the DVD drive we also need to
694	* unlock it afterwards or the guest won't be able to eject it later on.
695	*/
696	if (pThis->pDADisk)
697	{
698	uint8_t abCmd[16] =
699	{
700	SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL, 0, 0, 0, false, 0,
701	0,0,0,0,0,0,0,0,0,0
702	};
703	DRVHostBaseScsiCmd(pThis, abCmd, 6, PDMMEDIATXDIR_NONE, NULL, NULL, NULL, 0, 0);
704	}
705	return VINF_SUCCESS;
706	}
707	if (irc == kIOReturnExclusiveAccess)
708	return VERR_SHARING_VIOLATION; /* already used exclusivly. */
709	if (irc != kIOReturnBusy)
710	return VERR_GENERAL_FAILURE; /* not mounted */
711
712	/*
713	* Attempt to the unmount all volumes of the device.
714	* It seems we can can do this all in one go without having to enumerate the
715	* volumes (sessions) and deal with them one by one. This is very fortuitous
716	* as the disk arbitration API is a bit cumbersome to deal with.
717	*/
718	if (iTry > 2)
719	return VERR_DRIVE_LOCKED;
720	char szName[128];
721	int rc = drvHostBaseGetBSDName(DVDService, &szName[0], 0);
722	if (RT_SUCCESS(rc))
723	{
724	pThis->pDASession = DASessionCreate(kCFAllocatorDefault);
725	if (pThis->pDASession)
726	{
727	DASessionScheduleWithRunLoop(pThis->pDASession, CFRunLoopGetCurrent(), MY_RUN_LOOP_MODE);
728	pThis->pDADisk = DADiskCreateFromBSDName(kCFAllocatorDefault, pThis->pDASession, szName);
729	if (pThis->pDADisk)
730	{
731	/*
732	* Try claim the device.
733	*/
734	Log(("%s-%d: calling DADiskClaim on '%s'.\n", pDrvIns->pReg->szName, pDrvIns->iInstance, szName));
735	int rcDA = -2;
736	DADiskClaim(pThis->pDADisk, kDADiskClaimOptionDefault, NULL, NULL, drvHostBaseDADoneCallback, &rcDA);
737	SInt32 rc32 = CFRunLoopRunInMode(MY_RUN_LOOP_MODE, 120.0, FALSE);
738	AssertMsg(rc32 == kCFRunLoopRunStopped, ("rc32=%RI32 (%RX32)\n", rc32, rc32));
739	if ( rc32 == kCFRunLoopRunStopped
740	&& !rcDA)
741	{
742	/*
743	* Try unmount the device.
744	*/
745	Log(("%s-%d: calling DADiskUnmount on '%s'.\n", pDrvIns->pReg->szName, pDrvIns->iInstance, szName));
746	rcDA = -2;
747	DADiskUnmount(pThis->pDADisk, kDADiskUnmountOptionWhole, drvHostBaseDADoneCallback, &rcDA);
748	rc32 = CFRunLoopRunInMode(MY_RUN_LOOP_MODE, 120.0, FALSE);
749	AssertMsg(rc32 == kCFRunLoopRunStopped, ("rc32=%RI32 (%RX32)\n", rc32, rc32));
750	if ( rc32 == kCFRunLoopRunStopped
751	&& !rcDA)
752	{
753	iTry = 99;
754	DASessionUnscheduleFromRunLoop(pThis->pDASession, CFRunLoopGetCurrent(), MY_RUN_LOOP_MODE);
755	Log(("%s-%d: unmount succeed - retrying.\n", pDrvIns->pReg->szName, pDrvIns->iInstance));
756	continue;
757	}
758	Log(("%s-%d: umount => rc32=%d & rcDA=%#x\n", pDrvIns->pReg->szName, pDrvIns->iInstance, rc32, rcDA));
759
760	/* failed - cleanup */
761	DADiskUnclaim(pThis->pDADisk);
762	}
763	else
764	Log(("%s-%d: claim => rc32=%d & rcDA=%#x\n", pDrvIns->pReg->szName, pDrvIns->iInstance, rc32, rcDA));
765
766	CFRelease(pThis->pDADisk);
767	pThis->pDADisk = NULL;
768	}
769	else
770	Log(("%s-%d: failed to open disk '%s'!\n", pDrvIns->pReg->szName, pDrvIns->iInstance, szName));
771
772	DASessionUnscheduleFromRunLoop(pThis->pDASession, CFRunLoopGetCurrent(), MY_RUN_LOOP_MODE);
773	CFRelease(pThis->pDASession);
774	pThis->pDASession = NULL;
775	}
776	else
777	Log(("%s-%d: failed to create DA session!\n", pDrvIns->pReg->szName, pDrvIns->iInstance));
778	}
779	RTThreadSleep(10);
780	}
781	}
782	#endif /* RT_OS_DARWIN */
783
784
785	#ifndef RT_OS_SOLARIS
786	/**
787	* Wrapper for open / RTFileOpen / IOKit.
788	*
789	* @remark The Darwin code must correspond exactly to the enumeration
790	* done in Main/darwin/iokit.c.
791	*/
792	static int drvHostBaseOpen(PDRVHOSTBASE pThis, PRTFILE pFileDevice, bool fReadOnly)
793	{
794	# ifdef RT_OS_DARWIN
795	/* Darwin is kind of special... */
796	Assert(!pFileDevice); NOREF(pFileDevice);
797	Assert(!pThis->cbBlock);
798	Assert(!pThis->MasterPort);
799	Assert(!pThis->ppMMCDI);
800	Assert(!pThis->ppScsiTaskDI);
801
802	/*
803	* Open the master port on the first invocation.
804	*/
805	kern_return_t krc = IOMasterPort(MACH_PORT_NULL, &pThis->MasterPort);
806	AssertReturn(krc == KERN_SUCCESS, VERR_GENERAL_FAILURE);
807
808	/*
809	* Create a matching dictionary for searching for CD, DVD and BlueRay services in the IOKit.
810	*
811	* The idea is to find all the devices which are of class IOCDBlockStorageDevice.
812	* CD devices are represented by IOCDBlockStorageDevice class itself, while DVD and BlueRay ones
813	* have it as a parent class.
814	*/
815	CFMutableDictionaryRef RefMatchingDict = IOServiceMatching("IOCDBlockStorageDevice");
816	AssertReturn(RefMatchingDict, NULL);
817
818	/*
819	* do the search and get a collection of keyboards.
820	*/
821	io_iterator_t DVDServices = NULL;
822	IOReturn irc = IOServiceGetMatchingServices(pThis->MasterPort, RefMatchingDict, &DVDServices);
823	AssertMsgReturn(irc == kIOReturnSuccess, ("irc=%d\n", irc), NULL);
824	RefMatchingDict = NULL; /* the reference is consumed by IOServiceGetMatchingServices. */
825
826	/*
827	* Enumerate the matching drives (services).
828	* (This enumeration must be identical to the one performed in Main/src-server/darwin/iokit.cpp.)
829	*/
830	int rc = VERR_FILE_NOT_FOUND;
831	unsigned i = 0;
832	io_object_t DVDService;
833	while ((DVDService = IOIteratorNext(DVDServices)) != 0)
834	{
835	/*
836	* Get the properties we use to identify the DVD drive.
837	*
838	* While there is a (weird 12 byte) GUID, it isn't persistent
839	* across boots. So, we have to use a combination of the
840	* vendor name and product name properties with an optional
841	* sequence number for identification.
842	*/
843	CFMutableDictionaryRef PropsRef = 0;
844	krc = IORegistryEntryCreateCFProperties(DVDService, &PropsRef, kCFAllocatorDefault, kNilOptions);
845	if (krc == KERN_SUCCESS)
846	{
847	/* Get the Device Characteristics dictionary. */
848	CFDictionaryRef DevCharRef = (CFDictionaryRef)CFDictionaryGetValue(PropsRef, CFSTR(kIOPropertyDeviceCharacteristicsKey));
849	if (DevCharRef)
850	{
851	/* The vendor name. */
852	char szVendor[128];
853	char *pszVendor = &szVendor[0];
854	CFTypeRef ValueRef = CFDictionaryGetValue(DevCharRef, CFSTR(kIOPropertyVendorNameKey));
855	if ( ValueRef
856	&& CFGetTypeID(ValueRef) == CFStringGetTypeID()
857	&& CFStringGetCString((CFStringRef)ValueRef, szVendor, sizeof(szVendor), kCFStringEncodingUTF8))
858	pszVendor = RTStrStrip(szVendor);
859	else
860	*pszVendor = '\0';
861
862	/* The product name. */
863	char szProduct[128];
864	char *pszProduct = &szProduct[0];
865	ValueRef = CFDictionaryGetValue(DevCharRef, CFSTR(kIOPropertyProductNameKey));
866	if ( ValueRef
867	&& CFGetTypeID(ValueRef) == CFStringGetTypeID()
868	&& CFStringGetCString((CFStringRef)ValueRef, szProduct, sizeof(szProduct), kCFStringEncodingUTF8))
869	pszProduct = RTStrStrip(szProduct);
870	else
871	*pszProduct = '\0';
872
873	/* Construct the two names and compare thwm with the one we're searching for. */
874	char szName1[256 + 32];
875	char szName2[256 + 32];
876	if (pszVendor \|\| pszProduct)
877	{
878	if (pszVendor && pszProduct)
879	{
880	RTStrPrintf(szName1, sizeof(szName1), "%s %s", pszVendor, pszProduct);
881	RTStrPrintf(szName2, sizeof(szName2), "%s %s (#%u)", pszVendor, pszProduct, i);
882	}
883	else
884	{
885	strcpy(szName1, *pszVendor ? pszVendor : pszProduct);
886	RTStrPrintf(szName2, sizeof(szName2), "%s (#%u)", *pszVendor ? pszVendor : pszProduct, i);
887	}
888	}
889	else
890	{
891	RTStrPrintf(szName1, sizeof(szName1), "(#%u)", i);
892	strcpy(szName2, szName1);
893	}
894
895	if ( !strcmp(szName1, pThis->pszDeviceOpen)
896	\|\| !strcmp(szName2, pThis->pszDeviceOpen))
897	{
898	/*
899	* Found it! Now, get the client interface and stuff.
900	* Note that we could also query kIOSCSITaskDeviceUserClientTypeID here if the
901	* MMC client plugin is missing. For now we assume this won't be necessary.
902	*/
903	SInt32 Score = 0;
904	IOCFPlugInInterface **ppPlugInInterface = NULL;
905	krc = IOCreatePlugInInterfaceForService(DVDService, kIOMMCDeviceUserClientTypeID, kIOCFPlugInInterfaceID,
906	&ppPlugInInterface, &Score);
907	if (krc == KERN_SUCCESS)
908	{
909	HRESULT hrc = (*ppPlugInInterface)->QueryInterface(ppPlugInInterface,
910	CFUUIDGetUUIDBytes(kIOMMCDeviceInterfaceID),
911	(LPVOID *)&pThis->ppMMCDI);
912	(*ppPlugInInterface)->Release(ppPlugInInterface);
913	ppPlugInInterface = NULL;
914	if (hrc == S_OK)
915	{
916	pThis->ppScsiTaskDI = (*pThis->ppMMCDI)->GetSCSITaskDeviceInterface(pThis->ppMMCDI);
917	if (pThis->ppScsiTaskDI)
918	rc = VINF_SUCCESS;
919	else
920	{
921	LogRel(("GetSCSITaskDeviceInterface failed on '%s'\n", pThis->pszDeviceOpen));
922	rc = VERR_NOT_SUPPORTED;
923	(*pThis->ppMMCDI)->Release(pThis->ppMMCDI);
924	}
925	}
926	else
927	{
928	rc = VERR_GENERAL_FAILURE;//RTErrConvertFromDarwinCOM(krc);
929	pThis->ppMMCDI = NULL;
930	}
931	}
932	else /* Check for kIOSCSITaskDeviceUserClientTypeID? */
933	rc = VERR_GENERAL_FAILURE;//RTErrConvertFromDarwinKern(krc);
934
935	/* Obtain exclusive access to the device so we can send SCSI commands. */
936	if (RT_SUCCESS(rc))
937	rc = drvHostBaseObtainExclusiveAccess(pThis, DVDService);
938
939	/* Cleanup on failure. */
940	if (RT_FAILURE(rc))
941	{
942	if (pThis->ppScsiTaskDI)
943	{
944	(*pThis->ppScsiTaskDI)->Release(pThis->ppScsiTaskDI);
945	pThis->ppScsiTaskDI = NULL;
946	}
947	if (pThis->ppMMCDI)
948	{
949	(*pThis->ppMMCDI)->Release(pThis->ppMMCDI);
950	pThis->ppMMCDI = NULL;
951	}
952	}
953
954	IOObjectRelease(DVDService);
955	break;
956	}
957	}
958	CFRelease(PropsRef);
959	}
960	else
961	AssertMsgFailed(("krc=%#x\n", krc));
962
963	IOObjectRelease(DVDService);
964	i++;
965	}
966
967	IOObjectRelease(DVDServices);
968	return rc;
969
970	#elif defined(RT_OS_FREEBSD)
971	RTFILE hFileDevice;
972	int rc = RTFileOpen(&hFileDevice, pThis->pszDeviceOpen, RTFILE_O_READWRITE \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE);
973	if (RT_FAILURE(rc))
974	return rc;
975
976	/*
977	* The current device handle can't passthrough SCSI commands.
978	* We have to get he passthrough device path and open this.
979	*/
980	union ccb DeviceCCB;
981	memset(&DeviceCCB, 0, sizeof(DeviceCCB));
982
983	DeviceCCB.ccb_h.func_code = XPT_GDEVLIST;
984	int rcBSD = ioctl(RTFileToNative(hFileDevice), CAMGETPASSTHRU, &DeviceCCB);
985	if (!rcBSD)
986	{
987	char *pszPassthroughDevice = NULL;
988	rc = RTStrAPrintf(&pszPassthroughDevice, "/dev/%s%u",
989	DeviceCCB.cgdl.periph_name, DeviceCCB.cgdl.unit_number);
990	if (rc >= 0)
991	{
992	RTFILE hPassthroughDevice;
993	rc = RTFileOpen(&hPassthroughDevice, pszPassthroughDevice, RTFILE_O_READWRITE \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE);
994	RTStrFree(pszPassthroughDevice);
995	if (RT_SUCCESS(rc))
996	{
997	/* Get needed device parameters. */
998
999	/*
1000	* The device path, target id and lun id. Those are
1001	* needed for the SCSI passthrough ioctl.
1002	*/
1003	memset(&DeviceCCB, 0, sizeof(DeviceCCB));
1004	DeviceCCB.ccb_h.func_code = XPT_GDEVLIST;
1005
1006	rcBSD = ioctl(RTFileToNative(hPassthroughDevice), CAMGETPASSTHRU, &DeviceCCB);
1007	if (!rcBSD)
1008	{
1009	if (DeviceCCB.cgdl.status != CAM_GDEVLIST_ERROR)
1010	{
1011	pThis->ScsiBus = DeviceCCB.ccb_h.path_id;
1012	pThis->ScsiTargetID = DeviceCCB.ccb_h.target_id;
1013	pThis->ScsiLunID = DeviceCCB.ccb_h.target_lun;
1014	*pFileDevice = hPassthroughDevice;
1015	}
1016	else
1017	{
1018	/* The passthrough device wasn't found. */
1019	rc = VERR_NOT_FOUND;
1020	}
1021	}
1022	else
1023	rc = RTErrConvertFromErrno(errno);
1024
1025	if (RT_FAILURE(rc))
1026	RTFileClose(hPassthroughDevice);
1027	}
1028	}
1029	else
1030	rc = VERR_NO_STR_MEMORY;
1031	}
1032	else
1033	rc = RTErrConvertFromErrno(errno);
1034
1035	RTFileClose(hFileDevice);
1036	return rc;
1037
1038	#else
1039	uint32_t fFlags = (fReadOnly ? RTFILE_O_READ : RTFILE_O_READWRITE) \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE;
1040	# ifdef RT_OS_LINUX
1041	fFlags \|= RTFILE_O_NON_BLOCK;
1042	# endif
1043	return RTFileOpen(pFileDevice, pThis->pszDeviceOpen, fFlags);
1044	#endif
1045	}
1046
1047	#else /* RT_OS_SOLARIS */
1048
1049	/**
1050	* Solaris wrapper for RTFileOpen.
1051	*
1052	* Solaris has to deal with two filehandles, a block and a raw one. Rather than messing
1053	* with drvHostBaseOpen's function signature & body, having a separate one is better.
1054	*
1055	* @returns VBox status code.
1056	*/
1057	static int drvHostBaseOpen(PDRVHOSTBASE pThis, PRTFILE pFileBlockDevice, PRTFILE pFileRawDevice, bool fReadOnly)
1058	{
1059	unsigned fFlags = (fReadOnly ? RTFILE_O_READ : RTFILE_O_READWRITE)
1060	\| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_NON_BLOCK;
1061	int rc = RTFileOpen(pFileBlockDevice, pThis->pszDeviceOpen, fFlags);
1062	if (RT_SUCCESS(rc))
1063	{
1064	rc = RTFileOpen(pFileRawDevice, pThis->pszRawDeviceOpen, fFlags);
1065	if (RT_SUCCESS(rc))
1066	return rc;
1067
1068	LogRel(("DVD: failed to open device %s rc=%Rrc\n", pThis->pszRawDeviceOpen, rc));
1069	RTFileClose(*pFileBlockDevice);
1070	}
1071	else
1072	LogRel(("DVD: failed to open device %s rc=%Rrc\n", pThis->pszDeviceOpen, rc));
1073	return rc;
1074	}
1075	#endif /* RT_OS_SOLARIS */
1076
1077
1078	/**
1079	* (Re)opens the device.
1080	*
1081	* This is used to open the device during construction, but it's also used to re-open
1082	* the device when a media is inserted. This re-open will kill off any cached data
1083	* that Linux for some peculiar reason thinks should survive a media change...
1084	*
1085	* @returns VBOX status code.
1086	* @param pThis Instance data.
1087	*/
1088	static int drvHostBaseReopen(PDRVHOSTBASE pThis)
1089	{
1090	#ifndef RT_OS_DARWIN /* Only one open for darwin. */
1091	LogFlow(("%s-%d: drvHostBaseReopen: '%s'\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->pszDeviceOpen));
1092
1093	RTFILE hFileDevice;
1094	#ifdef RT_OS_SOLARIS
1095	if (pThis->hFileRawDevice != NIL_RTFILE)
1096	{
1097	RTFileClose(pThis->hFileRawDevice);
1098	pThis->hFileRawDevice = NIL_RTFILE;
1099	}
1100	if (pThis->hFileDevice != NIL_RTFILE)
1101	{
1102	RTFileClose(pThis->hFileDevice);
1103	pThis->hFileDevice = NIL_RTFILE;
1104	}
1105	RTFILE hFileRawDevice;
1106	int rc = drvHostBaseOpen(pThis, &hFileDevice, &hFileRawDevice, pThis->fReadOnlyConfig);
1107	#else
1108	int rc = drvHostBaseOpen(pThis, &hFileDevice, pThis->fReadOnlyConfig);
1109	#endif
1110	if (RT_FAILURE(rc))
1111	{
1112	if (!pThis->fReadOnlyConfig)
1113	{
1114	LogFlow(("%s-%d: drvHostBaseReopen: '%s' - retry readonly (%Rrc)\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->pszDeviceOpen, rc));
1115	#ifdef RT_OS_SOLARIS
1116	rc = drvHostBaseOpen(pThis, &hFileDevice, &hFileRawDevice, false);
1117	#else
1118	rc = drvHostBaseOpen(pThis, &hFileDevice, false);
1119	#endif
1120	}
1121	if (RT_FAILURE(rc))
1122	{
1123	LogFlow(("%s-%d: failed to open device '%s', rc=%Rrc\n",
1124	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->pszDevice, rc));
1125	return rc;
1126	}
1127	pThis->fReadOnly = true;
1128	}
1129	else
1130	pThis->fReadOnly = pThis->fReadOnlyConfig;
1131
1132	#ifdef RT_OS_SOLARIS
1133	if (pThis->hFileRawDevice != NIL_RTFILE)
1134	RTFileClose(pThis->hFileRawDevice);
1135	pThis->hFileRawDevice = hFileRawDevice;
1136	#endif
1137
1138	if (pThis->hFileDevice != NIL_RTFILE)
1139	RTFileClose(pThis->hFileDevice);
1140	pThis->hFileDevice = hFileDevice;
1141	#endif /* !RT_OS_DARWIN */
1142	return VINF_SUCCESS;
1143	}
1144
1145
1146	/**
1147	* Queries the media size.
1148	*
1149	* @returns VBox status code.
1150	* @param pThis Pointer to the instance data.
1151	* @param pcb Where to store the media size in bytes.
1152	*/
1153	static DECLCALLBACK(int) drvHostBaseGetMediaSize(PDRVHOSTBASE pThis, uint64_t *pcb)
1154	{
1155	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_FREEBSD)
1156	/*
1157	* Try a READ_CAPACITY command...
1158	*/
1159	struct
1160	{
1161	uint32_t cBlocks;
1162	uint32_t cbBlock;
1163	} Buf = {0, 0};
1164	uint32_t cbBuf = sizeof(Buf);
1165	uint8_t abCmd[16] =
1166	{
1167	SCSI_READ_CAPACITY, 0, 0, 0, 0, 0, 0,
1168	0,0,0,0,0,0,0,0,0
1169	};
1170	int rc = DRVHostBaseScsiCmd(pThis, abCmd, 6, PDMMEDIATXDIR_FROM_DEVICE, &Buf, &cbBuf, NULL, 0, 0);
1171	if (RT_SUCCESS(rc))
1172	{
1173	Assert(cbBuf == sizeof(Buf));
1174	Buf.cBlocks = RT_BE2H_U32(Buf.cBlocks);
1175	Buf.cbBlock = RT_BE2H_U32(Buf.cbBlock);
1176	//if (Buf.cbBlock > 2048) /* everyone else is doing this... check if it needed/right.*/
1177	// Buf.cbBlock = 2048;
1178	pThis->cbBlock = Buf.cbBlock;
1179
1180	pcb = (uint64_t)Buf.cBlocks Buf.cbBlock;
1181	}
1182	return rc;
1183
1184	#elif defined(RT_OS_SOLARIS)
1185	/*
1186	* Sun docs suggests using DKIOCGGEOM instead of DKIOCGMEDIAINFO, but
1187	* Sun themselves use DKIOCGMEDIAINFO for DVDs/CDs, and use DKIOCGGEOM
1188	* for secondary storage devices.
1189	*/
1190	struct dk_minfo MediaInfo;
1191	if (ioctl(RTFileToNative(pThis->hFileRawDevice), DKIOCGMEDIAINFO, &MediaInfo) == 0)
1192	{
1193	pcb = MediaInfo.dki_capacity (uint64_t)MediaInfo.dki_lbsize;
1194	return VINF_SUCCESS;
1195	}
1196	return RTFileSeek(pThis->hFileDevice, 0, RTFILE_SEEK_END, pcb);
1197
1198	#elif defined(RT_OS_WINDOWS)
1199	/* use NT api, retry a few times if the media is being verified. */
1200	IO_STATUS_BLOCK IoStatusBlock = {0};
1201	FILE_FS_SIZE_INFORMATION FsSize= {0};
1202	NTSTATUS rcNt = NtQueryVolumeInformationFile((HANDLE)RTFileToNative(pThis->hFileDevice), &IoStatusBlock,
1203	&FsSize, sizeof(FsSize), FileFsSizeInformation);
1204	int cRetries = 5;
1205	while (rcNt == STATUS_VERIFY_REQUIRED && cRetries-- > 0)
1206	{
1207	RTThreadSleep(10);
1208	rcNt = NtQueryVolumeInformationFile((HANDLE)RTFileToNative(pThis->hFileDevice), &IoStatusBlock,
1209	&FsSize, sizeof(FsSize), FileFsSizeInformation);
1210	}
1211	if (rcNt >= 0)
1212	{
1213	pcb = FsSize.TotalAllocationUnits.QuadPart FsSize.BytesPerSector;
1214	return VINF_SUCCESS;
1215	}
1216
1217	/* convert nt status code to VBox status code. */
1218	/** @todo Make conversion function!. */
1219	int rc = VERR_GENERAL_FAILURE;
1220	switch (rcNt)
1221	{
1222	case STATUS_NO_MEDIA_IN_DEVICE: rc = VERR_MEDIA_NOT_PRESENT; break;
1223	case STATUS_VERIFY_REQUIRED: rc = VERR_TRY_AGAIN; break;
1224	}
1225	LogFlow(("drvHostBaseGetMediaSize: NtQueryVolumeInformationFile -> %#lx\n", rcNt, rc));
1226	return rc;
1227	#else
1228	return RTFileSeek(pThis->hFileDevice, 0, RTFILE_SEEK_END, pcb);
1229	#endif
1230	}
1231
1232
1233	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_FREEBSD)
1234	/**
1235	* Execute a SCSI command.
1236	*
1237	* @param pThis The instance data.
1238	* @param pbCmd Pointer to the SCSI command.
1239	* @param cbCmd The size of the SCSI command.
1240	* @param enmTxDir The transfer direction.
1241	* @param pvBuf The buffer. Can be NULL if enmTxDir is PDMMEDIATXDIR_NONE.
1242	* @param pcbBuf Where to get the buffer size from and put the actual transfer size. Can be NULL.
1243	* @param pbSense Where to put the sense data. Can be NULL.
1244	* @param cbSense Size of the sense data buffer.
1245	* @param cTimeoutMillies The timeout. 0 mean the default timeout.
1246	*
1247	* @returns VINF_SUCCESS on success (no sense code).
1248	* @returns VERR_UNRESOLVED_ERROR if sense code is present.
1249	* @returns Some other VBox status code on failures without sense code.
1250	*
1251	* @todo Fix VERR_UNRESOLVED_ERROR abuse.
1252	*/
1253	DECLCALLBACK(int) DRVHostBaseScsiCmd(PDRVHOSTBASE pThis, const uint8_t *pbCmd, size_t cbCmd, PDMMEDIATXDIR enmTxDir,
1254	void pvBuf, uint32_t pcbBuf, uint8_t *pbSense, size_t cbSense, uint32_t cTimeoutMillies)
1255	{
1256	/*
1257	* Minimal input validation.
1258	*/
1259	Assert(enmTxDir == PDMMEDIATXDIR_NONE \|\| enmTxDir == PDMMEDIATXDIR_FROM_DEVICE \|\| enmTxDir == PDMMEDIATXDIR_TO_DEVICE);
1260	Assert(!pvBuf \|\| pcbBuf);
1261	Assert(pvBuf \|\| enmTxDir == PDMMEDIATXDIR_NONE);
1262	Assert(pbSense \|\| !cbSense);
1263	AssertPtr(pbCmd);
1264	Assert(cbCmd <= 16 && cbCmd >= 1);
1265	const uint32_t cbBuf = pcbBuf ? *pcbBuf : 0;
1266	if (pcbBuf)
1267	*pcbBuf = 0;
1268
1269	# ifdef RT_OS_DARWIN
1270	Assert(pThis->ppScsiTaskDI);
1271
1272	int rc = VERR_GENERAL_FAILURE;
1273	SCSITaskInterface *ppScsiTaskI = (pThis->ppScsiTaskDI)->CreateSCSITask(pThis->ppScsiTaskDI);
1274	if (!ppScsiTaskI)
1275	return VERR_NO_MEMORY;
1276	do
1277	{
1278	/* Setup the scsi command. */
1279	SCSICommandDescriptorBlock cdb = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
1280	memcpy(&cdb[0], pbCmd, cbCmd);
1281	IOReturn irc = (*ppScsiTaskI)->SetCommandDescriptorBlock(ppScsiTaskI, cdb, cbCmd);
1282	AssertBreak(irc == kIOReturnSuccess);
1283
1284	/* Setup the buffer. */
1285	if (enmTxDir == PDMMEDIATXDIR_NONE)
1286	irc = (*ppScsiTaskI)->SetScatterGatherEntries(ppScsiTaskI, NULL, 0, 0, kSCSIDataTransfer_NoDataTransfer);
1287	else
1288	{
1289	IOVirtualRange Range = { (IOVirtualAddress)pvBuf, cbBuf };
1290	irc = (*ppScsiTaskI)->SetScatterGatherEntries(ppScsiTaskI, &Range, 1, cbBuf,
1291	enmTxDir == PDMMEDIATXDIR_FROM_DEVICE
1292	? kSCSIDataTransfer_FromTargetToInitiator
1293	: kSCSIDataTransfer_FromInitiatorToTarget);
1294	}
1295	AssertBreak(irc == kIOReturnSuccess);
1296
1297	/* Set the timeout. */
1298	irc = (ppScsiTaskI)->SetTimeoutDuration(ppScsiTaskI, cTimeoutMillies ? cTimeoutMillies : 30000 /ms*/);
1299	AssertBreak(irc == kIOReturnSuccess);
1300
1301	/* Execute the command and get the response. */
1302	SCSI_Sense_Data SenseData = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
1303	SCSIServiceResponse ServiceResponse = kSCSIServiceResponse_Request_In_Process;
1304	SCSITaskStatus TaskStatus = kSCSITaskStatus_GOOD;
1305	UInt64 cbReturned = 0;
1306	irc = (*ppScsiTaskI)->ExecuteTaskSync(ppScsiTaskI, &SenseData, &TaskStatus, &cbReturned);
1307	AssertBreak(irc == kIOReturnSuccess);
1308	if (pcbBuf)
1309	*pcbBuf = (int32_t)cbReturned;
1310
1311	irc = (*ppScsiTaskI)->GetSCSIServiceResponse(ppScsiTaskI, &ServiceResponse);
1312	AssertBreak(irc == kIOReturnSuccess);
1313	AssertBreak(ServiceResponse == kSCSIServiceResponse_TASK_COMPLETE);
1314
1315	if (TaskStatus == kSCSITaskStatus_GOOD)
1316	rc = VINF_SUCCESS;
1317	else if ( TaskStatus == kSCSITaskStatus_CHECK_CONDITION
1318	&& pbSense)
1319	{
1320	memset(pbSense, 0, cbSense); /* lazy */
1321	memcpy(pbSense, &SenseData, RT_MIN(sizeof(SenseData), cbSense));
1322	rc = VERR_UNRESOLVED_ERROR;
1323	}
1324	/** @todo convert sense codes when caller doesn't wish to do this himself. */
1325	/*else if ( TaskStatus == kSCSITaskStatus_CHECK_CONDITION
1326	&& SenseData.ADDITIONAL_SENSE_CODE == 0x3A)
1327	rc = VERR_MEDIA_NOT_PRESENT; */
1328	else
1329	{
1330	rc = enmTxDir == PDMMEDIATXDIR_NONE
1331	? VERR_DEV_IO_ERROR
1332	: enmTxDir == PDMMEDIATXDIR_FROM_DEVICE
1333	? VERR_READ_ERROR
1334	: VERR_WRITE_ERROR;
1335	if (pThis->cLogRelErrors++ < 10)
1336	LogRel(("DVD scsi error: cmd={%.*Rhxs} TaskStatus=%#x key=%#x ASC=%#x ASCQ=%#x (%Rrc)\n",
1337	cbCmd, pbCmd, TaskStatus, SenseData.SENSE_KEY, SenseData.ADDITIONAL_SENSE_CODE,
1338	SenseData.ADDITIONAL_SENSE_CODE_QUALIFIER, rc));
1339	}
1340	} while (0);
1341
1342	(*ppScsiTaskI)->Release(ppScsiTaskI);
1343
1344	# elif defined(RT_OS_FREEBSD)
1345	int rc = VINF_SUCCESS;
1346	int rcBSD = 0;
1347	union ccb DeviceCCB;
1348	union ccb *pDeviceCCB = &DeviceCCB;
1349	u_int32_t fFlags;
1350
1351	memset(pDeviceCCB, 0, sizeof(DeviceCCB));
1352	pDeviceCCB->ccb_h.path_id = pThis->ScsiBus;
1353	pDeviceCCB->ccb_h.target_id = pThis->ScsiTargetID;
1354	pDeviceCCB->ccb_h.target_lun = pThis->ScsiLunID;
1355
1356	/* The SCSI INQUIRY command can't be passed through directly. */
1357	if (pbCmd[0] == SCSI_INQUIRY)
1358	{
1359	pDeviceCCB->ccb_h.func_code = XPT_GDEV_TYPE;
1360
1361	rcBSD = ioctl(RTFileToNative(pThis->hFileDevice), CAMIOCOMMAND, pDeviceCCB);
1362	if (!rcBSD)
1363	{
1364	uint32_t cbCopy = cbBuf < sizeof(struct scsi_inquiry_data)
1365	? cbBuf
1366	: sizeof(struct scsi_inquiry_data);;
1367	memcpy(pvBuf, &pDeviceCCB->cgd.inq_data, cbCopy);
1368	memset(pbSense, 0, cbSense);
1369
1370	if (pcbBuf)
1371	*pcbBuf = cbCopy;
1372	}
1373	else
1374	rc = RTErrConvertFromErrno(errno);
1375	}
1376	else
1377	{
1378	/* Copy the CDB. */
1379	memcpy(&pDeviceCCB->csio.cdb_io.cdb_bytes, pbCmd, cbCmd);
1380
1381	/* Set direction. */
1382	if (enmTxDir == PDMMEDIATXDIR_NONE)
1383	fFlags = CAM_DIR_NONE;
1384	else if (enmTxDir == PDMMEDIATXDIR_FROM_DEVICE)
1385	fFlags = CAM_DIR_IN;
1386	else
1387	fFlags = CAM_DIR_OUT;
1388
1389	fFlags \|= CAM_DEV_QFRZDIS;
1390
1391	cam_fill_csio(&pDeviceCCB->csio, 1, NULL, fFlags, MSG_SIMPLE_Q_TAG,
1392	(u_int8_t *)pvBuf, cbBuf, cbSense, cbCmd,
1393	cTimeoutMillies ? cTimeoutMillies : 30000/* timeout */);
1394
1395	/* Send command */
1396	rcBSD = ioctl(RTFileToNative(pThis->hFileDevice), CAMIOCOMMAND, pDeviceCCB);
1397	if (!rcBSD)
1398	{
1399	switch (pDeviceCCB->ccb_h.status & CAM_STATUS_MASK)
1400	{
1401	case CAM_REQ_CMP:
1402	rc = VINF_SUCCESS;
1403	break;
1404	case CAM_SEL_TIMEOUT:
1405	rc = VERR_DEV_IO_ERROR;
1406	break;
1407	case CAM_CMD_TIMEOUT:
1408	rc = VERR_TIMEOUT;
1409	break;
1410	default:
1411	rc = VERR_DEV_IO_ERROR;
1412	}
1413
1414	if (pcbBuf)
1415	*pcbBuf = cbBuf - pDeviceCCB->csio.resid;
1416
1417	if (pbSense)
1418	memcpy(pbSense, &pDeviceCCB->csio.sense_data,
1419	cbSense - pDeviceCCB->csio.sense_resid);
1420	}
1421	else
1422	rc = RTErrConvertFromErrno(errno);
1423	}
1424	# endif
1425
1426	return rc;
1427	}
1428	#endif
1429
1430
1431	/**
1432	* Media present.
1433	* Query the size and notify the above driver / device.
1434	*
1435	* @param pThis The instance data.
1436	*/
1437	int DRVHostBaseMediaPresent(PDRVHOSTBASE pThis)
1438	{
1439	/*
1440	* Open the drive.
1441	*/
1442	int rc = drvHostBaseReopen(pThis);
1443	if (RT_FAILURE(rc))
1444	return rc;
1445
1446	/*
1447	* Determine the size.
1448	*/
1449	uint64_t cb;
1450	rc = pThis->pfnGetMediaSize(pThis, &cb);
1451	if (RT_FAILURE(rc))
1452	{
1453	LogFlow(("%s-%d: failed to figure media size of %s, rc=%Rrc\n",
1454	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->pszDevice, rc));
1455	return rc;
1456	}
1457
1458	/*
1459	* Update the data and inform the unit.
1460	*/
1461	pThis->cbSize = cb;
1462	pThis->fMediaPresent = true;
1463	if (pThis->pDrvMountNotify)
1464	pThis->pDrvMountNotify->pfnMountNotify(pThis->pDrvMountNotify);
1465	LogFlow(("%s-%d: drvHostBaseMediaPresent: cbSize=%lld (%#llx)\n",
1466	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->cbSize, pThis->cbSize));
1467	return VINF_SUCCESS;
1468	}
1469
1470
1471	/**
1472	* Media no longer present.
1473	* @param pThis The instance data.
1474	*/
1475	void DRVHostBaseMediaNotPresent(PDRVHOSTBASE pThis)
1476	{
1477	pThis->fMediaPresent = false;
1478	pThis->fLocked = false;
1479	pThis->PCHSGeometry.cCylinders = 0;
1480	pThis->PCHSGeometry.cHeads = 0;
1481	pThis->PCHSGeometry.cSectors = 0;
1482	pThis->LCHSGeometry.cCylinders = 0;
1483	pThis->LCHSGeometry.cHeads = 0;
1484	pThis->LCHSGeometry.cSectors = 0;
1485	if (pThis->pDrvMountNotify)
1486	pThis->pDrvMountNotify->pfnUnmountNotify(pThis->pDrvMountNotify);
1487	}
1488
1489
1490	#ifdef RT_OS_WINDOWS
1491
1492	/**
1493	* Window procedure for the invisible window used to catch the WM_DEVICECHANGE broadcasts.
1494	*/
1495	static LRESULT CALLBACK DeviceChangeWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1496	{
1497	Log2(("DeviceChangeWindowProc: hwnd=%08x uMsg=%08x\n", hwnd, uMsg));
1498	if (uMsg == WM_DESTROY)
1499	{
1500	PDRVHOSTBASE pThis = (PDRVHOSTBASE)GetWindowLongPtr(hwnd, GWLP_USERDATA);
1501	if (pThis)
1502	ASMAtomicXchgSize(&pThis->hwndDeviceChange, NULL);
1503	PostQuitMessage(0);
1504	}
1505
1506	if (uMsg != WM_DEVICECHANGE)
1507	return DefWindowProc(hwnd, uMsg, wParam, lParam);
1508
1509	PDEV_BROADCAST_HDR lpdb = (PDEV_BROADCAST_HDR)lParam;
1510	PDRVHOSTBASE pThis = (PDRVHOSTBASE)GetWindowLongPtr(hwnd, GWLP_USERDATA);
1511	Assert(pThis);
1512	if (pThis == NULL)
1513	return 0;
1514
1515	switch (wParam)
1516	{
1517	case DBT_DEVICEARRIVAL:
1518	case DBT_DEVICEREMOVECOMPLETE:
1519	// Check whether a CD or DVD was inserted into or removed from a drive.
1520	if (lpdb->dbch_devicetype == DBT_DEVTYP_VOLUME)
1521	{
1522	PDEV_BROADCAST_VOLUME lpdbv = (PDEV_BROADCAST_VOLUME)lpdb;
1523	if ( (lpdbv->dbcv_flags & DBTF_MEDIA)
1524	&& (pThis->fUnitMask & lpdbv->dbcv_unitmask))
1525	{
1526	RTCritSectEnter(&pThis->CritSect);
1527	if (wParam == DBT_DEVICEARRIVAL)
1528	{
1529	int cRetries = 10;
1530	int rc = DRVHostBaseMediaPresent(pThis);
1531	while (RT_FAILURE(rc) && cRetries-- > 0)
1532	{
1533	RTThreadSleep(50);
1534	rc = DRVHostBaseMediaPresent(pThis);
1535	}
1536	}
1537	else
1538	DRVHostBaseMediaNotPresent(pThis);
1539	RTCritSectLeave(&pThis->CritSect);
1540	}
1541	}
1542	break;
1543	}
1544	return TRUE;
1545	}
1546
1547	#endif /* RT_OS_WINDOWS */
1548
1549
1550	/**
1551	* This thread will periodically poll the device for media presence.
1552	*
1553	* @returns Ignored.
1554	* @param ThreadSelf Handle of this thread. Ignored.
1555	* @param pvUser Pointer to the driver instance structure.
1556	*/
1557	static DECLCALLBACK(int) drvHostBaseMediaThread(RTTHREAD ThreadSelf, void *pvUser)
1558	{
1559	PDRVHOSTBASE pThis = (PDRVHOSTBASE)pvUser;
1560	LogFlow(("%s-%d: drvHostBaseMediaThread: ThreadSelf=%p pvUser=%p\n",
1561	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, ThreadSelf, pvUser));
1562	#ifdef RT_OS_WINDOWS
1563	static WNDCLASS s_classDeviceChange = {0};
1564	static ATOM s_hAtomDeviceChange = 0;
1565
1566	/*
1567	* Register custom window class.
1568	*/
1569	if (s_hAtomDeviceChange == 0)
1570	{
1571	memset(&s_classDeviceChange, 0, sizeof(s_classDeviceChange));
1572	s_classDeviceChange.lpfnWndProc = DeviceChangeWindowProc;
1573	s_classDeviceChange.lpszClassName = "VBOX_DeviceChangeClass";
1574	s_classDeviceChange.hInstance = GetModuleHandle("VBoxDD.dll");
1575	Assert(s_classDeviceChange.hInstance);
1576	s_hAtomDeviceChange = RegisterClassA(&s_classDeviceChange);
1577	Assert(s_hAtomDeviceChange);
1578	}
1579
1580	/*
1581	* Create Window w/ the pThis as user data.
1582	*/
1583	HWND hwnd = CreateWindow((LPCTSTR)s_hAtomDeviceChange, "", WS_POPUP, 0, 0, 0, 0, 0, 0, s_classDeviceChange.hInstance, 0);
1584	AssertMsg(hwnd, ("CreateWindow failed with %d\n", GetLastError()));
1585	SetWindowLongPtr(hwnd, GWLP_USERDATA, (LONG_PTR)pThis);
1586
1587	/*
1588	* Signal the waiting EMT thread that everything went fine.
1589	*/
1590	ASMAtomicXchgSize(&pThis->hwndDeviceChange, hwnd);
1591	RTThreadUserSignal(ThreadSelf);
1592	if (!hwnd)
1593	{
1594	LogFlow(("%s-%d: drvHostBaseMediaThread: returns VERR_GENERAL_FAILURE\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance));
1595	return VERR_GENERAL_FAILURE;
1596	}
1597	LogFlow(("%s-%d: drvHostBaseMediaThread: Created hwndDeviceChange=%p\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, hwnd));
1598
1599	/*
1600	* Message pump.
1601	*/
1602	MSG Msg;
1603	BOOL fRet;
1604	while ((fRet = GetMessage(&Msg, NULL, 0, 0)) != FALSE)
1605	{
1606	if (fRet != -1)
1607	{
1608	TranslateMessage(&Msg);
1609	DispatchMessage(&Msg);
1610	}
1611	//else: handle the error and possibly exit
1612	}
1613	Assert(!pThis->hwndDeviceChange);
1614
1615	#else /* !RT_OS_WINDOWS */
1616	bool fFirst = true;
1617	int cRetries = 10;
1618	while (!pThis->fShutdownPoller)
1619	{
1620	/*
1621	* Perform the polling (unless we've run out of 50ms retries).
1622	*/
1623	if ( pThis->pfnPoll
1624	&& cRetries-- > 0)
1625	{
1626
1627	int rc = pThis->pfnPoll(pThis);
1628	if (RT_FAILURE(rc))
1629	{
1630	RTSemEventWait(pThis->EventPoller, 50);
1631	continue;
1632	}
1633	}
1634
1635	/*
1636	* Signal EMT after the first go.
1637	*/
1638	if (fFirst)
1639	{
1640	RTThreadUserSignal(ThreadSelf);
1641	fFirst = false;
1642	}
1643
1644	/*
1645	* Sleep.
1646	*/
1647	int rc = RTSemEventWait(pThis->EventPoller, pThis->cMilliesPoller);
1648	if ( RT_FAILURE(rc)
1649	&& rc != VERR_TIMEOUT)
1650	{
1651	AssertMsgFailed(("rc=%Rrc\n", rc));
1652	pThis->ThreadPoller = NIL_RTTHREAD;
1653	LogFlow(("drvHostBaseMediaThread: returns %Rrc\n", rc));
1654	return rc;
1655	}
1656	cRetries = 10;
1657	}
1658
1659	#endif /* !RT_OS_WINDOWS */
1660
1661	/* (Don't clear the thread handle here, the destructor thread is using it to wait.) */
1662	LogFlow(("%s-%d: drvHostBaseMediaThread: returns VINF_SUCCESS\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance));
1663	return VINF_SUCCESS;
1664	}
1665
1666	/* -=-=-=-=- driver interface -=-=-=-=- */
1667
1668
1669	/**
1670	* Done state load operation.
1671	*
1672	* @returns VBox load code.
1673	* @param pDrvIns Driver instance of the driver which registered the data unit.
1674	* @param pSSM SSM operation handle.
1675	*/
1676	static DECLCALLBACK(int) drvHostBaseLoadDone(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM)
1677	{
1678	PDRVHOSTBASE pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTBASE);
1679	LogFlow(("%s-%d: drvHostBaseMediaThread:\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance));
1680	RTCritSectEnter(&pThis->CritSect);
1681
1682	/*
1683	* Tell the device/driver above us that the media status is uncertain.
1684	*/
1685	if (pThis->pDrvMountNotify)
1686	{
1687	pThis->pDrvMountNotify->pfnUnmountNotify(pThis->pDrvMountNotify);
1688	if (pThis->fMediaPresent)
1689	pThis->pDrvMountNotify->pfnMountNotify(pThis->pDrvMountNotify);
1690	}
1691
1692	RTCritSectLeave(&pThis->CritSect);
1693	return VINF_SUCCESS;
1694	}
1695
1696
1697	/** @copydoc FNPDMDRVDESTRUCT */
1698	DECLCALLBACK(void) DRVHostBaseDestruct(PPDMDRVINS pDrvIns)
1699	{
1700	PDRVHOSTBASE pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTBASE);
1701	LogFlow(("%s-%d: drvHostBaseDestruct: iInstance=%d\n", pDrvIns->pReg->szName, pDrvIns->iInstance, pDrvIns->iInstance));
1702
1703	/*
1704	* Terminate the thread.
1705	*/
1706	if (pThis->ThreadPoller != NIL_RTTHREAD)
1707	{
1708	pThis->fShutdownPoller = true;
1709	int rc;
1710	int cTimes = 50;
1711	do
1712	{
1713	#ifdef RT_OS_WINDOWS
1714	if (pThis->hwndDeviceChange)
1715	PostMessage(pThis->hwndDeviceChange, WM_CLOSE, 0, 0); /* default win proc will destroy the window */
1716	#else
1717	RTSemEventSignal(pThis->EventPoller);
1718	#endif
1719	rc = RTThreadWait(pThis->ThreadPoller, 100, NULL);
1720	} while (cTimes-- > 0 && rc == VERR_TIMEOUT);
1721
1722	if (!rc)
1723	pThis->ThreadPoller = NIL_RTTHREAD;
1724	}
1725
1726	/*
1727	* Unlock the drive if we've locked it or we're in passthru mode.
1728	*/
1729	#ifdef RT_OS_DARWIN
1730	if ( ( pThis->fLocked
1731	\|\| pThis->IMedia.pfnSendCmd)
1732	&& pThis->ppScsiTaskDI
1733	#else /** @todo Check if the other guys can mix pfnDoLock with scsi passthru.
1734	* (We're currently not unlocking the device after use. See todo in DevATA.cpp.) */
1735	if ( pThis->fLocked
1736	&& pThis->hFileDevice != NIL_RTFILE
1737	#endif
1738	&& pThis->pfnDoLock)
1739	{
1740	int rc = pThis->pfnDoLock(pThis, false);
1741	if (RT_SUCCESS(rc))
1742	pThis->fLocked = false;
1743	}
1744
1745	/*
1746	* Cleanup the other resources.
1747	*/
1748	#ifdef RT_OS_WINDOWS
1749	if (pThis->hwndDeviceChange)
1750	{
1751	if (SetWindowLongPtr(pThis->hwndDeviceChange, GWLP_USERDATA, 0) == (LONG_PTR)pThis)
1752	PostMessage(pThis->hwndDeviceChange, WM_CLOSE, 0, 0); /* default win proc will destroy the window */
1753	pThis->hwndDeviceChange = NULL;
1754	}
1755	#else
1756	if (pThis->EventPoller != NULL)
1757	{
1758	RTSemEventDestroy(pThis->EventPoller);
1759	pThis->EventPoller = NULL;
1760	}
1761	#endif
1762
1763	#ifdef RT_OS_DARWIN
1764	/*
1765	* The unclaiming doesn't seem to mean much, the DVD is actually
1766	* remounted when we release exclusive access. I'm not quite sure
1767	* if I should put the unclaim first or not...
1768	*
1769	* Anyway, that it's automatically remounted very good news for us,
1770	* because that means we don't have to mess with that ourselves. Of
1771	* course there is the unlikely scenario that we've succeeded in claiming
1772	* and umount the DVD but somehow failed to gain exclusive scsi access...
1773	*/
1774	if (pThis->ppScsiTaskDI)
1775	{
1776	LogFlow(("%s-%d: releasing exclusive scsi access!\n", pDrvIns->pReg->szName, pDrvIns->iInstance));
1777	(*pThis->ppScsiTaskDI)->ReleaseExclusiveAccess(pThis->ppScsiTaskDI);
1778	(*pThis->ppScsiTaskDI)->Release(pThis->ppScsiTaskDI);
1779	pThis->ppScsiTaskDI = NULL;
1780	}
1781	if (pThis->pDADisk)
1782	{
1783	LogFlow(("%s-%d: unclaiming the disk!\n", pDrvIns->pReg->szName, pDrvIns->iInstance));
1784	DADiskUnclaim(pThis->pDADisk);
1785	CFRelease(pThis->pDADisk);
1786	pThis->pDADisk = NULL;
1787	}
1788	if (pThis->ppMMCDI)
1789	{
1790	LogFlow(("%s-%d: releasing the MMC object!\n", pDrvIns->pReg->szName, pDrvIns->iInstance));
1791	(*pThis->ppMMCDI)->Release(pThis->ppMMCDI);
1792	pThis->ppMMCDI = NULL;
1793	}
1794	if (pThis->MasterPort)
1795	{
1796	mach_port_deallocate(mach_task_self(), pThis->MasterPort);
1797	pThis->MasterPort = NULL;
1798	}
1799	if (pThis->pDASession)
1800	{
1801	LogFlow(("%s-%d: releasing the DA session!\n", pDrvIns->pReg->szName, pDrvIns->iInstance));
1802	CFRelease(pThis->pDASession);
1803	pThis->pDASession = NULL;
1804	}
1805	#else
1806	if (pThis->hFileDevice != NIL_RTFILE)
1807	{
1808	int rc = RTFileClose(pThis->hFileDevice);
1809	AssertRC(rc);
1810	pThis->hFileDevice = NIL_RTFILE;
1811	}
1812	#endif
1813
1814	#ifdef RT_OS_SOLARIS
1815	if (pThis->hFileRawDevice != NIL_RTFILE)
1816	{
1817	int rc = RTFileClose(pThis->hFileRawDevice);
1818	AssertRC(rc);
1819	pThis->hFileRawDevice = NIL_RTFILE;
1820	}
1821
1822	if (pThis->pszRawDeviceOpen)
1823	{
1824	RTStrFree(pThis->pszRawDeviceOpen);
1825	pThis->pszRawDeviceOpen = NULL;
1826	}
1827	#endif
1828
1829	if (pThis->pszDevice)
1830	{
1831	MMR3HeapFree(pThis->pszDevice);
1832	pThis->pszDevice = NULL;
1833	}
1834
1835	if (pThis->pszDeviceOpen)
1836	{
1837	RTStrFree(pThis->pszDeviceOpen);
1838	pThis->pszDeviceOpen = NULL;
1839	}
1840
1841	/* Forget about the notifications. */
1842	pThis->pDrvMountNotify = NULL;
1843
1844	/* Leave the instance operational if this is just a cleanup of the state
1845	* after an attach error happened. So don't destroy the critsect then. */
1846	if (!pThis->fKeepInstance && RTCritSectIsInitialized(&pThis->CritSect))
1847	RTCritSectDelete(&pThis->CritSect);
1848	LogFlow(("%s-%d: drvHostBaseDestruct completed\n", pDrvIns->pReg->szName, pDrvIns->iInstance));
1849	}
1850
1851
1852	/**
1853	* Initializes the instance data (init part 1).
1854	*
1855	* The driver which derives from this base driver will override function pointers after
1856	* calling this method, and complete the construction by calling DRVHostBaseInitFinish().
1857	*
1858	* On failure call DRVHostBaseDestruct().
1859	*
1860	* @returns VBox status code.
1861	* @param pDrvIns Driver instance.
1862	* @param pCfg Configuration handle.
1863	* @param enmType Device type.
1864	*/
1865	int DRVHostBaseInitData(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, PDMMEDIATYPE enmType)
1866	{
1867	PDRVHOSTBASE pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTBASE);
1868	LogFlow(("%s-%d: DRVHostBaseInitData: iInstance=%d\n", pDrvIns->pReg->szName, pDrvIns->iInstance, pDrvIns->iInstance));
1869
1870	/*
1871	* Initialize most of the data members.
1872	*/
1873	pThis->pDrvIns = pDrvIns;
1874	pThis->fKeepInstance = false;
1875	pThis->ThreadPoller = NIL_RTTHREAD;
1876	#ifdef RT_OS_DARWIN
1877	pThis->MasterPort = NULL;
1878	pThis->ppMMCDI = NULL;
1879	pThis->ppScsiTaskDI = NULL;
1880	pThis->cbBlock = 0;
1881	pThis->pDADisk = NULL;
1882	pThis->pDASession = NULL;
1883	#else
1884	pThis->hFileDevice = NIL_RTFILE;
1885	#endif
1886	#ifdef RT_OS_SOLARIS
1887	pThis->hFileRawDevice = NIL_RTFILE;
1888	#endif
1889	pThis->enmType = enmType;
1890	//pThis->cErrors = 0;
1891	pThis->fAttachFailError = true; /* It's an error until we've read the config. */
1892
1893	pThis->pfnGetMediaSize = drvHostBaseGetMediaSize;
1894
1895	/* IBase. */
1896	pDrvIns->IBase.pfnQueryInterface = drvHostBaseQueryInterface;
1897
1898	/* IMedia. */
1899	pThis->IMedia.pfnRead = drvHostBaseRead;
1900	pThis->IMedia.pfnWrite = drvHostBaseWrite;
1901	pThis->IMedia.pfnFlush = drvHostBaseFlush;
1902	pThis->IMedia.pfnIsReadOnly = drvHostBaseIsReadOnly;
1903	pThis->IMedia.pfnGetSize = drvHostBaseGetSize;
1904	pThis->IMedia.pfnGetType = drvHostBaseGetType;
1905	pThis->IMedia.pfnGetUuid = drvHostBaseGetUuid;
1906	pThis->IMedia.pfnIoBufAlloc = drvHostBaseIoBufAlloc;
1907	pThis->IMedia.pfnIoBufFree = drvHostBaseIoBufFree;
1908	pThis->IMedia.pfnBiosGetPCHSGeometry = drvHostBaseGetPCHSGeometry;
1909	pThis->IMedia.pfnBiosSetPCHSGeometry = drvHostBaseSetPCHSGeometry;
1910	pThis->IMedia.pfnBiosGetLCHSGeometry = drvHostBaseGetLCHSGeometry;
1911	pThis->IMedia.pfnBiosSetLCHSGeometry = drvHostBaseSetLCHSGeometry;
1912	pThis->IMedia.pfnBiosIsVisible = drvHostBaseIsVisible;
1913
1914	/* IMount. */
1915	pThis->IMount.pfnUnmount = drvHostBaseUnmount;
1916	pThis->IMount.pfnIsMounted = drvHostBaseIsMounted;
1917	pThis->IMount.pfnLock = drvHostBaseLock;
1918	pThis->IMount.pfnUnlock = drvHostBaseUnlock;
1919	pThis->IMount.pfnIsLocked = drvHostBaseIsLocked;
1920
1921	/*
1922	* Get the IBlockPort & IMountNotify interfaces of the above driver/device.
1923	*/
1924	pThis->pDrvMediaPort = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMIMEDIAPORT);
1925	if (!pThis->pDrvMediaPort)
1926	{
1927	AssertMsgFailed(("Configuration error: No media port interface above!\n"));
1928	return VERR_PDM_MISSING_INTERFACE_ABOVE;
1929	}
1930	pThis->pDrvMountNotify = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMIMOUNTNOTIFY);
1931
1932	/*
1933	* Query configuration.
1934	*/
1935	/* Device */
1936	int rc = CFGMR3QueryStringAlloc(pCfg, "Path", &pThis->pszDevice);
1937	if (RT_FAILURE(rc))
1938	{
1939	AssertMsgFailed(("Configuration error: query for \"Path\" string returned %Rra.\n", rc));
1940	return rc;
1941	}
1942
1943	/* Mountable */
1944	uint32_t u32;
1945	rc = CFGMR3QueryU32(pCfg, "Interval", &u32);
1946	if (RT_SUCCESS(rc))
1947	pThis->cMilliesPoller = u32;
1948	else if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1949	pThis->cMilliesPoller = 1000;
1950	else if (RT_FAILURE(rc))
1951	{
1952	AssertMsgFailed(("Configuration error: Query \"Mountable\" resulted in %Rrc.\n", rc));
1953	return rc;
1954	}
1955
1956	/* ReadOnly */
1957	rc = CFGMR3QueryBool(pCfg, "ReadOnly", &pThis->fReadOnlyConfig);
1958	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1959	pThis->fReadOnlyConfig = enmType == PDMMEDIATYPE_DVD \|\| enmType == PDMMEDIATYPE_CDROM ? true : false;
1960	else if (RT_FAILURE(rc))
1961	{
1962	AssertMsgFailed(("Configuration error: Query \"ReadOnly\" resulted in %Rrc.\n", rc));
1963	return rc;
1964	}
1965
1966	/* Locked */
1967	rc = CFGMR3QueryBool(pCfg, "Locked", &pThis->fLocked);
1968	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1969	pThis->fLocked = false;
1970	else if (RT_FAILURE(rc))
1971	{
1972	AssertMsgFailed(("Configuration error: Query \"Locked\" resulted in %Rrc.\n", rc));
1973	return rc;
1974	}
1975
1976	/* BIOS visible */
1977	rc = CFGMR3QueryBool(pCfg, "BIOSVisible", &pThis->fBiosVisible);
1978	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1979	pThis->fBiosVisible = true;
1980	else if (RT_FAILURE(rc))
1981	{
1982	AssertMsgFailed(("Configuration error: Query \"BIOSVisible\" resulted in %Rrc.\n", rc));
1983	return rc;
1984	}
1985
1986	/* Uuid */
1987	char *psz;
1988	rc = CFGMR3QueryStringAlloc(pCfg, "Uuid", &psz);
1989	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1990	RTUuidClear(&pThis->Uuid);
1991	else if (RT_SUCCESS(rc))
1992	{
1993	rc = RTUuidFromStr(&pThis->Uuid, psz);
1994	if (RT_FAILURE(rc))
1995	{
1996	AssertMsgFailed(("Configuration error: Uuid from string failed on \"%s\", rc=%Rrc.\n", psz, rc));
1997	MMR3HeapFree(psz);
1998	return rc;
1999	}
2000	MMR3HeapFree(psz);
2001	}
2002	else
2003	{
2004	AssertMsgFailed(("Configuration error: Failed to obtain the uuid, rc=%Rrc.\n", rc));
2005	return rc;
2006	}
2007
2008	/* Define whether attach failure is an error (default) or not. */
2009	bool fAttachFailError;
2010	rc = CFGMR3QueryBool(pCfg, "AttachFailError", &fAttachFailError);
2011	if (RT_FAILURE(rc))
2012	fAttachFailError = true;
2013	pThis->fAttachFailError = fAttachFailError;
2014
2015	/* name to open & watch for */
2016	#ifdef RT_OS_WINDOWS
2017	int iBit = RT_C_TO_UPPER(pThis->pszDevice[0]) - 'A';
2018	if ( iBit > 'Z' - 'A'
2019	\|\| pThis->pszDevice[1] != ':'
2020	\|\| pThis->pszDevice[2])
2021	{
2022	AssertMsgFailed(("Configuration error: Invalid drive specification: '%s'\n", pThis->pszDevice));
2023	return VERR_INVALID_PARAMETER;
2024	}
2025	pThis->fUnitMask = 1 << iBit;
2026	RTStrAPrintf(&pThis->pszDeviceOpen, "\\\\.\\%s", pThis->pszDevice);
2027
2028	#elif defined(RT_OS_SOLARIS)
2029	char *pszBlockDevName = getfullblkname(pThis->pszDevice);
2030	if (!pszBlockDevName)
2031	return VERR_NO_MEMORY;
2032	pThis->pszDeviceOpen = RTStrDup(pszBlockDevName); /* for RTStrFree() */
2033	free(pszBlockDevName);
2034	pThis->pszRawDeviceOpen = RTStrDup(pThis->pszDevice);
2035
2036	#else
2037	pThis->pszDeviceOpen = RTStrDup(pThis->pszDevice);
2038	#endif
2039
2040	if (!pThis->pszDeviceOpen)
2041	return VERR_NO_MEMORY;
2042
2043	return VINF_SUCCESS;
2044	}
2045
2046
2047	/**
2048	* Do the 2nd part of the init after the derived driver has overridden the defaults.
2049	*
2050	* On failure call DRVHostBaseDestruct().
2051	*
2052	* @returns VBox status code.
2053	* @param pThis Pointer to the instance data.
2054	*/
2055	int DRVHostBaseInitFinish(PDRVHOSTBASE pThis)
2056	{
2057	int src = VINF_SUCCESS;
2058	PPDMDRVINS pDrvIns = pThis->pDrvIns;
2059
2060	/* log config summary */
2061	Log(("%s-%d: pszDevice='%s' (%s) cMilliesPoller=%d fReadOnlyConfig=%d fLocked=%d fBIOSVisible=%d Uuid=%RTuuid\n",
2062	pDrvIns->pReg->szName, pDrvIns->iInstance, pThis->pszDevice, pThis->pszDeviceOpen, pThis->cMilliesPoller,
2063	pThis->fReadOnlyConfig, pThis->fLocked, pThis->fBiosVisible, &pThis->Uuid));
2064
2065	/*
2066	* Check that there are no drivers below us.
2067	*/
2068	AssertMsgReturn(PDMDrvHlpNoAttach(pDrvIns) == VERR_PDM_NO_ATTACHED_DRIVER,
2069	("Configuration error: Not possible to attach anything to this driver!\n"),
2070	VERR_PDM_DRVINS_NO_ATTACH);
2071
2072	/*
2073	* Register saved state.
2074	*/
2075	int rc = PDMDrvHlpSSMRegisterLoadDone(pDrvIns, drvHostBaseLoadDone);
2076	if (RT_FAILURE(rc))
2077	return rc;
2078
2079	/*
2080	* Verify type.
2081	*/
2082	#ifdef RT_OS_WINDOWS
2083	UINT uDriveType = GetDriveType(pThis->pszDevice);
2084	switch (pThis->enmType)
2085	{
2086	case PDMMEDIATYPE_FLOPPY_360:
2087	case PDMMEDIATYPE_FLOPPY_720:
2088	case PDMMEDIATYPE_FLOPPY_1_20:
2089	case PDMMEDIATYPE_FLOPPY_1_44:
2090	case PDMMEDIATYPE_FLOPPY_2_88:
2091	case PDMMEDIATYPE_FLOPPY_FAKE_15_6:
2092	case PDMMEDIATYPE_FLOPPY_FAKE_63_5:
2093	if (uDriveType != DRIVE_REMOVABLE)
2094	{
2095	AssertMsgFailed(("Configuration error: '%s' is not a floppy (type=%d)\n",
2096	pThis->pszDevice, uDriveType));
2097	return VERR_INVALID_PARAMETER;
2098	}
2099	break;
2100	case PDMMEDIATYPE_CDROM:
2101	case PDMMEDIATYPE_DVD:
2102	if (uDriveType != DRIVE_CDROM)
2103	{
2104	AssertMsgFailed(("Configuration error: '%s' is not a cdrom (type=%d)\n",
2105	pThis->pszDevice, uDriveType));
2106	return VERR_INVALID_PARAMETER;
2107	}
2108	break;
2109	case PDMMEDIATYPE_HARD_DISK:
2110	default:
2111	AssertMsgFailed(("enmType=%d\n", pThis->enmType));
2112	return VERR_INVALID_PARAMETER;
2113	}
2114	#endif
2115
2116	/*
2117	* Open the device.
2118	*/
2119	#if defined(RT_OS_DARWIN)
2120	rc = drvHostBaseOpen(pThis, NULL, pThis->fReadOnlyConfig);
2121	#else
2122	rc = drvHostBaseReopen(pThis);
2123	#endif
2124	if (RT_FAILURE(rc))
2125	{
2126	char *pszDevice = pThis->pszDevice;
2127	#ifndef RT_OS_DARWIN
2128	char szPathReal[256];
2129	if ( RTPathExists(pszDevice)
2130	&& RT_SUCCESS(RTPathReal(pszDevice, szPathReal, sizeof(szPathReal))))
2131	pszDevice = szPathReal;
2132	pThis->hFileDevice = NIL_RTFILE;
2133	#endif
2134	#ifdef RT_OS_SOLARIS
2135	pThis->hFileRawDevice = NIL_RTFILE;
2136	#endif
2137
2138	/*
2139	* Disable CD/DVD passthrough in case it was enabled. Would cause
2140	* weird failures later when the guest issues commands. These would
2141	* all fail because of the invalid file handle. So use the normal
2142	* virtual CD/DVD code, which deals more gracefully with unavailable
2143	* "media" - actually a complete drive in this case.
2144	*/
2145	pThis->IMedia.pfnSendCmd = NULL;
2146	AssertMsgFailed(("Could not open host device %s, rc=%Rrc\n", pszDevice, rc));
2147	switch (rc)
2148	{
2149	case VERR_ACCESS_DENIED:
2150	return PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS,
2151	#ifdef RT_OS_LINUX
2152	N_("Cannot open host device '%s' for %s access. Check the permissions "
2153	"of that device ('/bin/ls -l %s'): Most probably you need to be member "
2154	"of the device group. Make sure that you logout/login after changing "
2155	"the group settings of the current user"),
2156	#else
2157	N_("Cannot open host device '%s' for %s access. Check the permissions "
2158	"of that device"),
2159	#endif
2160	pszDevice, pThis->fReadOnlyConfig ? "readonly" : "read/write",
2161	pszDevice);
2162	default:
2163	{
2164	if (pThis->fAttachFailError)
2165	return rc;
2166	int erc = PDMDrvHlpVMSetRuntimeError(pDrvIns, 0 /fFlags/,
2167	"DrvHost_MOUNTFAIL",
2168	N_("Cannot attach to host device '%s'"), pszDevice);
2169	AssertRC(erc);
2170	src = rc;
2171	}
2172	}
2173	}
2174	#ifdef RT_OS_WINDOWS
2175	if (RT_SUCCESS(src))
2176	DRVHostBaseMediaPresent(pThis);
2177	#endif
2178
2179	/*
2180	* Lock the drive if that's required by the configuration.
2181	*/
2182	if (pThis->fLocked)
2183	{
2184	if (pThis->pfnDoLock)
2185	rc = pThis->pfnDoLock(pThis, true);
2186	if (RT_FAILURE(rc))
2187	{
2188	AssertMsgFailed(("Failed to lock the dvd drive. rc=%Rrc\n", rc));
2189	return rc;
2190	}
2191	}
2192
2193	#ifndef RT_OS_WINDOWS
2194	if (RT_SUCCESS(src))
2195	{
2196	/*
2197	* Create the event semaphore which the poller thread will wait on.
2198	*/
2199	rc = RTSemEventCreate(&pThis->EventPoller);
2200	if (RT_FAILURE(rc))
2201	return rc;
2202	}
2203	#endif
2204
2205	/*
2206	* Initialize the critical section used for serializing the access to the media.
2207	*/
2208	rc = RTCritSectInit(&pThis->CritSect);
2209	if (RT_FAILURE(rc))
2210	return rc;
2211
2212	if (RT_SUCCESS(src))
2213	{
2214	/*
2215	* Start the thread which will poll for the media.
2216	*/
2217	rc = RTThreadCreate(&pThis->ThreadPoller, drvHostBaseMediaThread, pThis, 0,
2218	RTTHREADTYPE_INFREQUENT_POLLER, RTTHREADFLAGS_WAITABLE, "DVDMEDIA");
2219	if (RT_FAILURE(rc))
2220	{
2221	AssertMsgFailed(("Failed to create poller thread. rc=%Rrc\n", rc));
2222	return rc;
2223	}
2224
2225	/*
2226	* Wait for the thread to start up (!w32:) and do one detection loop.
2227	*/
2228	rc = RTThreadUserWait(pThis->ThreadPoller, 10000);
2229	AssertRC(rc);
2230	#ifdef RT_OS_WINDOWS
2231	if (!pThis->hwndDeviceChange)
2232	return VERR_GENERAL_FAILURE;
2233	#endif
2234	}
2235
2236	if (RT_FAILURE(src))
2237	return src;
2238	return rc;
2239	}
2240

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source: vbox/trunk/src/VBox/Devices/Storage/DrvHostBase.cpp@ 60756

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