DrvHostBase.cpp@ 63723

Last change on this file since 63723 was 63482, checked in by vboxsync, 8 years ago
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1	/* $Id: DrvHostBase.cpp 63482 2016-08-15 14:24:48Z vboxsync $ */
2	/** @file
3	* DrvHostBase - Host base drive access driver.
4	*/
5
6	/*
7	* Copyright (C) 2006-2016 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 <iprt/win/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	/** @interface_method_impl{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 defined(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	/** @interface_method_impl{PDMIBLOCK,pfnWrite} */
212	static DECLCALLBACK(int) drvHostBaseWrite(PPDMIMEDIA pInterface, uint64_t off, const void *pvBuf, size_t cbWrite)
213	{
214	RT_NOREF(off, pvBuf, cbWrite);
215	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
216	LogFlow(("%s-%d: drvHostBaseWrite: off=%#llx pvBuf=%p cbWrite=%#x (%s)\n",
217	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, off, pvBuf, cbWrite, pThis->pszDevice));
218	Log2(("%s-%d: drvHostBaseWrite: off=%#llx cbWrite=%#x\n"
219	"%16.*Rhxd\n",
220	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, off, cbWrite, cbWrite, pvBuf));
221	RTCritSectEnter(&pThis->CritSect);
222
223	/*
224	* Check the state.
225	*/
226	int rc;
227	if (!pThis->fReadOnly)
228	{
229	if (pThis->fMediaPresent)
230	{
231	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_FREEBSD)
232	/** @todo write support... */
233	rc = VERR_WRITE_PROTECT;
234
235	#else
236	/*
237	* Seek and write.
238	*/
239	rc = RTFileWriteAt(pThis->hFileDevice, off, pvBuf, cbWrite, NULL);
240	if (RT_FAILURE(rc))
241	Log(("%s-%d: drvHostBaseWrite: RTFileWriteAt(%RTfile, %#llx, %p, %#x) -> %Rrc ('%s')\n",
242	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->hFileDevice,
243	off, pvBuf, cbWrite, rc, pThis->pszDevice));
244	#endif
245	}
246	else
247	rc = VERR_MEDIA_NOT_PRESENT;
248	}
249	else
250	rc = VERR_WRITE_PROTECT;
251
252	RTCritSectLeave(&pThis->CritSect);
253	LogFlow(("%s-%d: drvHostBaseWrite: returns %Rrc\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, rc));
254	return rc;
255	}
256
257
258	/** @interface_method_impl{PDMIBLOCK,pfnFlush} */
259	static DECLCALLBACK(int) drvHostBaseFlush(PPDMIMEDIA pInterface)
260	{
261	int rc;
262	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
263	LogFlow(("%s-%d: drvHostBaseFlush: (%s)\n",
264	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->pszDevice));
265	RTCritSectEnter(&pThis->CritSect);
266
267	if (pThis->fMediaPresent)
268	{
269	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_FREEBSD)
270	rc = VINF_SUCCESS;
271	/** @todo scsi device buffer flush... */
272	#else
273	rc = RTFileFlush(pThis->hFileDevice);
274	#endif
275	}
276	else
277	rc = VERR_MEDIA_NOT_PRESENT;
278
279	RTCritSectLeave(&pThis->CritSect);
280	LogFlow(("%s-%d: drvHostBaseFlush: returns %Rrc\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, rc));
281	return rc;
282	}
283
284
285	/** @interface_method_impl{PDMIBLOCK,pfnIsReadOnly} */
286	static DECLCALLBACK(bool) drvHostBaseIsReadOnly(PPDMIMEDIA pInterface)
287	{
288	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
289	return pThis->fReadOnly;
290	}
291
292
293	/** @interface_method_impl{PDMIBLOCK,pfnGetSize} */
294	static DECLCALLBACK(uint64_t) drvHostBaseGetSize(PPDMIMEDIA pInterface)
295	{
296	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
297	RTCritSectEnter(&pThis->CritSect);
298
299	uint64_t cb = 0;
300	if (pThis->fMediaPresent)
301	cb = pThis->cbSize;
302
303	RTCritSectLeave(&pThis->CritSect);
304	LogFlow(("%s-%d: drvHostBaseGetSize: returns %llu\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, cb));
305	return cb;
306	}
307
308
309	/** @interface_method_impl{PDMIBLOCK,pfnGetType} */
310	static DECLCALLBACK(PDMMEDIATYPE) drvHostBaseGetType(PPDMIMEDIA pInterface)
311	{
312	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
313	LogFlow(("%s-%d: drvHostBaseGetType: returns %d\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->enmType));
314	return pThis->enmType;
315	}
316
317
318	/** @interface_method_impl{PDMIBLOCK,pfnGetUuid} */
319	static DECLCALLBACK(int) drvHostBaseGetUuid(PPDMIMEDIA pInterface, PRTUUID pUuid)
320	{
321	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
322
323	*pUuid = pThis->Uuid;
324
325	LogFlow(("%s-%d: drvHostBaseGetUuid: returns VINF_SUCCESS *pUuid=%RTuuid\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pUuid));
326	return VINF_SUCCESS;
327	}
328
329
330	/** @interface_method_impl{PDMIBLOCK,pfnIoBufAlloc} */
331	static DECLCALLBACK(int) drvHostBaseIoBufAlloc(PPDMIMEDIA pInterface, size_t cb, void **ppvNew)
332	{
333	RT_NOREF(pInterface);
334	LogFlowFunc(("\n"));
335
336	int rc;
337	void *pvNew = RTMemAlloc(cb);
338	if (RT_LIKELY(pvNew))
339	{
340	*ppvNew = pvNew;
341	rc = VINF_SUCCESS;
342	}
343	else
344	rc = VERR_NO_MEMORY;
345
346	LogFlowFunc(("returns %Rrc\n", rc));
347	return rc;
348	}
349
350	/** @interface_method_impl{PDMIBLOCK,pfnIoBufFree} */
351	static DECLCALLBACK(int) drvHostBaseIoBufFree(PPDMIMEDIA pInterface, void *pv, size_t cb)
352	{
353	RT_NOREF(pInterface, cb);
354	LogFlowFunc(("\n"));
355
356	RTMemFree(pv);
357
358	LogFlowFunc(("returns %Rrc\n", VINF_SUCCESS));
359	return VINF_SUCCESS;
360	}
361
362
363	/** @interface_method_impl{PDMIBLOCKBIOS,pfnBiosGetPCHSGeometry} */
364	static DECLCALLBACK(int) drvHostBaseGetPCHSGeometry(PPDMIMEDIA pInterface, PPDMMEDIAGEOMETRY pPCHSGeometry)
365	{
366	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
367	RTCritSectEnter(&pThis->CritSect);
368
369	int rc = VINF_SUCCESS;
370	if (pThis->fMediaPresent)
371	{
372	if ( pThis->PCHSGeometry.cCylinders > 0
373	&& pThis->PCHSGeometry.cHeads > 0
374	&& pThis->PCHSGeometry.cSectors > 0)
375	{
376	*pPCHSGeometry = pThis->PCHSGeometry;
377	}
378	else
379	rc = VERR_PDM_GEOMETRY_NOT_SET;
380	}
381	else
382	rc = VERR_PDM_MEDIA_NOT_MOUNTED;
383
384	RTCritSectLeave(&pThis->CritSect);
385	LogFlow(("%s-%d: %s: returns %Rrc CHS={%d,%d,%d}\n",
386	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, __FUNCTION__, rc, pThis->PCHSGeometry.cCylinders, pThis->PCHSGeometry.cHeads, pThis->PCHSGeometry.cSectors));
387	return rc;
388	}
389
390
391	/** @interface_method_impl{PDMIBLOCKBIOS,pfnBiosSetPCHSGeometry} */
392	static DECLCALLBACK(int) drvHostBaseSetPCHSGeometry(PPDMIMEDIA pInterface, PCPDMMEDIAGEOMETRY pPCHSGeometry)
393	{
394	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
395	LogFlow(("%s-%d: %s: cCylinders=%d cHeads=%d cSectors=%d\n",
396	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, __FUNCTION__, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));
397	RTCritSectEnter(&pThis->CritSect);
398
399	int rc = VINF_SUCCESS;
400	if (pThis->fMediaPresent)
401	{
402	pThis->PCHSGeometry = *pPCHSGeometry;
403	}
404	else
405	{
406	AssertMsgFailed(("Invalid state! Not mounted!\n"));
407	rc = VERR_PDM_MEDIA_NOT_MOUNTED;
408	}
409
410	RTCritSectLeave(&pThis->CritSect);
411	return rc;
412	}
413
414
415	/** @interface_method_impl{PDMIBLOCKBIOS,pfnGetLCHSGeometry} */
416	static DECLCALLBACK(int) drvHostBaseGetLCHSGeometry(PPDMIMEDIA pInterface, PPDMMEDIAGEOMETRY pLCHSGeometry)
417	{
418	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
419	RTCritSectEnter(&pThis->CritSect);
420
421	int rc = VINF_SUCCESS;
422	if (pThis->fMediaPresent)
423	{
424	if ( pThis->LCHSGeometry.cCylinders > 0
425	&& pThis->LCHSGeometry.cHeads > 0
426	&& pThis->LCHSGeometry.cSectors > 0)
427	{
428	*pLCHSGeometry = pThis->LCHSGeometry;
429	}
430	else
431	rc = VERR_PDM_GEOMETRY_NOT_SET;
432	}
433	else
434	rc = VERR_PDM_MEDIA_NOT_MOUNTED;
435
436	RTCritSectLeave(&pThis->CritSect);
437	LogFlow(("%s-%d: %s: returns %Rrc CHS={%d,%d,%d}\n",
438	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, __FUNCTION__, rc, pThis->LCHSGeometry.cCylinders, pThis->LCHSGeometry.cHeads, pThis->LCHSGeometry.cSectors));
439	return rc;
440	}
441
442
443	/** @interface_method_impl{PDMIBLOCKBIOS,pfnSetLCHSGeometry} */
444	static DECLCALLBACK(int) drvHostBaseSetLCHSGeometry(PPDMIMEDIA pInterface, PCPDMMEDIAGEOMETRY pLCHSGeometry)
445	{
446	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
447	LogFlow(("%s-%d: %s: cCylinders=%d cHeads=%d cSectors=%d\n",
448	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, __FUNCTION__, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
449	RTCritSectEnter(&pThis->CritSect);
450
451	int rc = VINF_SUCCESS;
452	if (pThis->fMediaPresent)
453	{
454	pThis->LCHSGeometry = *pLCHSGeometry;
455	}
456	else
457	{
458	AssertMsgFailed(("Invalid state! Not mounted!\n"));
459	rc = VERR_PDM_MEDIA_NOT_MOUNTED;
460	}
461
462	RTCritSectLeave(&pThis->CritSect);
463	return rc;
464	}
465
466
467	/** @interface_method_impl{PDMIBLOCKBIOS,pfnIsVisible} */
468	static DECLCALLBACK(bool) drvHostBaseIsVisible(PPDMIMEDIA pInterface)
469	{
470	PDRVHOSTBASE pThis = PDMIMEDIA_2_DRVHOSTBASE(pInterface);
471	return pThis->fBiosVisible;
472	}
473
474
475
476	/* -=-=-=-=- IMount -=-=-=-=- */
477
478	/** @interface_method_impl{PDMIMOUNT,pfnUnmount} */
479	static DECLCALLBACK(int) drvHostBaseUnmount(PPDMIMOUNT pInterface, bool fForce, bool fEject)
480	{
481	RT_NOREF(fEject);
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	/** @interface_method_impl{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	/** @interface_method_impl{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	/** @interface_method_impl{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	/** @interface_method_impl{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	RT_NOREF(DiskRef);
668	int prc = (int )pvContext;
669	if (!DissenterRef)
670	*prc = 0;
671	else
672	*prc = DADissenterGetStatus(DissenterRef) ? DADissenterGetStatus(DissenterRef) : -1;
673	CFRunLoopStop(CFRunLoopGetCurrent());
674	}
675
676
677	/**
678	* Obtain exclusive access to the DVD device, umount it if necessary.
679	*
680	* @return VBox status code.
681	* @param pThis The driver instance.
682	* @param DVDService The DVD service object.
683	*/
684	static int drvHostBaseObtainExclusiveAccess(PDRVHOSTBASE pThis, io_object_t DVDService)
685	{
686	PPDMDRVINS pDrvIns = pThis->pDrvIns; NOREF(pDrvIns);
687
688	for (unsigned iTry = 0;; iTry++)
689	{
690	IOReturn irc = (*pThis->ppScsiTaskDI)->ObtainExclusiveAccess(pThis->ppScsiTaskDI);
691	if (irc == kIOReturnSuccess)
692	{
693	/*
694	* This is a bit weird, but if we unmounted the DVD drive we also need to
695	* unlock it afterwards or the guest won't be able to eject it later on.
696	*/
697	if (pThis->pDADisk)
698	{
699	uint8_t abCmd[16] =
700	{
701	SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL, 0, 0, 0, false, 0,
702	0,0,0,0,0,0,0,0,0,0
703	};
704	DRVHostBaseScsiCmd(pThis, abCmd, 6, PDMMEDIATXDIR_NONE, NULL, NULL, NULL, 0, 0);
705	}
706	return VINF_SUCCESS;
707	}
708	if (irc == kIOReturnExclusiveAccess)
709	return VERR_SHARING_VIOLATION; /* already used exclusivly. */
710	if (irc != kIOReturnBusy)
711	return VERR_GENERAL_FAILURE; /* not mounted */
712
713	/*
714	* Attempt to the unmount all volumes of the device.
715	* It seems we can can do this all in one go without having to enumerate the
716	* volumes (sessions) and deal with them one by one. This is very fortuitous
717	* as the disk arbitration API is a bit cumbersome to deal with.
718	*/
719	if (iTry > 2)
720	return VERR_DRIVE_LOCKED;
721	char szName[128];
722	int rc = drvHostBaseGetBSDName(DVDService, &szName[0], 0);
723	if (RT_SUCCESS(rc))
724	{
725	pThis->pDASession = DASessionCreate(kCFAllocatorDefault);
726	if (pThis->pDASession)
727	{
728	DASessionScheduleWithRunLoop(pThis->pDASession, CFRunLoopGetCurrent(), MY_RUN_LOOP_MODE);
729	pThis->pDADisk = DADiskCreateFromBSDName(kCFAllocatorDefault, pThis->pDASession, szName);
730	if (pThis->pDADisk)
731	{
732	/*
733	* Try claim the device.
734	*/
735	Log(("%s-%d: calling DADiskClaim on '%s'.\n", pDrvIns->pReg->szName, pDrvIns->iInstance, szName));
736	int rcDA = -2;
737	DADiskClaim(pThis->pDADisk, kDADiskClaimOptionDefault, NULL, NULL, drvHostBaseDADoneCallback, &rcDA);
738	SInt32 rc32 = CFRunLoopRunInMode(MY_RUN_LOOP_MODE, 120.0, FALSE);
739	AssertMsg(rc32 == kCFRunLoopRunStopped, ("rc32=%RI32 (%RX32)\n", rc32, rc32));
740	if ( rc32 == kCFRunLoopRunStopped
741	&& !rcDA)
742	{
743	/*
744	* Try unmount the device.
745	*/
746	Log(("%s-%d: calling DADiskUnmount on '%s'.\n", pDrvIns->pReg->szName, pDrvIns->iInstance, szName));
747	rcDA = -2;
748	DADiskUnmount(pThis->pDADisk, kDADiskUnmountOptionWhole, drvHostBaseDADoneCallback, &rcDA);
749	rc32 = CFRunLoopRunInMode(MY_RUN_LOOP_MODE, 120.0, FALSE);
750	AssertMsg(rc32 == kCFRunLoopRunStopped, ("rc32=%RI32 (%RX32)\n", rc32, rc32));
751	if ( rc32 == kCFRunLoopRunStopped
752	&& !rcDA)
753	{
754	iTry = 99;
755	DASessionUnscheduleFromRunLoop(pThis->pDASession, CFRunLoopGetCurrent(), MY_RUN_LOOP_MODE);
756	Log(("%s-%d: unmount succeed - retrying.\n", pDrvIns->pReg->szName, pDrvIns->iInstance));
757	continue;
758	}
759	Log(("%s-%d: umount => rc32=%d & rcDA=%#x\n", pDrvIns->pReg->szName, pDrvIns->iInstance, rc32, rcDA));
760
761	/* failed - cleanup */
762	DADiskUnclaim(pThis->pDADisk);
763	}
764	else
765	Log(("%s-%d: claim => rc32=%d & rcDA=%#x\n", pDrvIns->pReg->szName, pDrvIns->iInstance, rc32, rcDA));
766
767	CFRelease(pThis->pDADisk);
768	pThis->pDADisk = NULL;
769	}
770	else
771	Log(("%s-%d: failed to open disk '%s'!\n", pDrvIns->pReg->szName, pDrvIns->iInstance, szName));
772
773	DASessionUnscheduleFromRunLoop(pThis->pDASession, CFRunLoopGetCurrent(), MY_RUN_LOOP_MODE);
774	CFRelease(pThis->pDASession);
775	pThis->pDASession = NULL;
776	}
777	else
778	Log(("%s-%d: failed to create DA session!\n", pDrvIns->pReg->szName, pDrvIns->iInstance));
779	}
780	RTThreadSleep(10);
781	}
782	}
783	#endif /* RT_OS_DARWIN */
784
785
786	#ifndef RT_OS_SOLARIS
787	/**
788	* Wrapper for open / RTFileOpen / IOKit.
789	*
790	* @remark The Darwin code must correspond exactly to the enumeration
791	* done in Main/darwin/iokit.c.
792	*/
793	static int drvHostBaseOpen(PDRVHOSTBASE pThis, PRTFILE pFileDevice, bool fReadOnly)
794	{
795	# ifdef RT_OS_DARWIN
796	RT_NOREF(fReadOnly);
797
798	/* Darwin is kind of special... */
799	Assert(!pFileDevice); NOREF(pFileDevice);
800	Assert(!pThis->cbBlock);
801	Assert(pThis->MasterPort == IO_OBJECT_NULL);
802	Assert(!pThis->ppMMCDI);
803	Assert(!pThis->ppScsiTaskDI);
804
805	/*
806	* Open the master port on the first invocation.
807	*/
808	kern_return_t krc = IOMasterPort(MACH_PORT_NULL, &pThis->MasterPort);
809	AssertReturn(krc == KERN_SUCCESS, VERR_GENERAL_FAILURE);
810
811	/*
812	* Create a matching dictionary for searching for CD, DVD and BlueRay services in the IOKit.
813	*
814	* The idea is to find all the devices which are of class IOCDBlockStorageDevice.
815	* CD devices are represented by IOCDBlockStorageDevice class itself, while DVD and BlueRay ones
816	* have it as a parent class.
817	*/
818	CFMutableDictionaryRef RefMatchingDict = IOServiceMatching("IOCDBlockStorageDevice");
819	AssertReturn(RefMatchingDict, VERR_NOT_FOUND);
820
821	/*
822	* do the search and get a collection of keyboards.
823	*/
824	io_iterator_t DVDServices = IO_OBJECT_NULL;
825	IOReturn irc = IOServiceGetMatchingServices(pThis->MasterPort, RefMatchingDict, &DVDServices);
826	AssertMsgReturn(irc == kIOReturnSuccess, ("irc=%d\n", irc), VERR_NOT_FOUND);
827	RefMatchingDict = NULL; /* the reference is consumed by IOServiceGetMatchingServices. */
828
829	/*
830	* Enumerate the matching drives (services).
831	* (This enumeration must be identical to the one performed in Main/src-server/darwin/iokit.cpp.)
832	*/
833	int rc = VERR_FILE_NOT_FOUND;
834	unsigned i = 0;
835	io_object_t DVDService;
836	while ((DVDService = IOIteratorNext(DVDServices)) != 0)
837	{
838	/*
839	* Get the properties we use to identify the DVD drive.
840	*
841	* While there is a (weird 12 byte) GUID, it isn't persistent
842	* across boots. So, we have to use a combination of the
843	* vendor name and product name properties with an optional
844	* sequence number for identification.
845	*/
846	CFMutableDictionaryRef PropsRef = 0;
847	krc = IORegistryEntryCreateCFProperties(DVDService, &PropsRef, kCFAllocatorDefault, kNilOptions);
848	if (krc == KERN_SUCCESS)
849	{
850	/* Get the Device Characteristics dictionary. */
851	CFDictionaryRef DevCharRef = (CFDictionaryRef)CFDictionaryGetValue(PropsRef, CFSTR(kIOPropertyDeviceCharacteristicsKey));
852	if (DevCharRef)
853	{
854	/* The vendor name. */
855	char szVendor[128];
856	char *pszVendor = &szVendor[0];
857	CFTypeRef ValueRef = CFDictionaryGetValue(DevCharRef, CFSTR(kIOPropertyVendorNameKey));
858	if ( ValueRef
859	&& CFGetTypeID(ValueRef) == CFStringGetTypeID()
860	&& CFStringGetCString((CFStringRef)ValueRef, szVendor, sizeof(szVendor), kCFStringEncodingUTF8))
861	pszVendor = RTStrStrip(szVendor);
862	else
863	*pszVendor = '\0';
864
865	/* The product name. */
866	char szProduct[128];
867	char *pszProduct = &szProduct[0];
868	ValueRef = CFDictionaryGetValue(DevCharRef, CFSTR(kIOPropertyProductNameKey));
869	if ( ValueRef
870	&& CFGetTypeID(ValueRef) == CFStringGetTypeID()
871	&& CFStringGetCString((CFStringRef)ValueRef, szProduct, sizeof(szProduct), kCFStringEncodingUTF8))
872	pszProduct = RTStrStrip(szProduct);
873	else
874	*pszProduct = '\0';
875
876	/* Construct the two names and compare thwm with the one we're searching for. */
877	char szName1[256 + 32];
878	char szName2[256 + 32];
879	if (pszVendor \|\| pszProduct)
880	{
881	if (pszVendor && pszProduct)
882	{
883	RTStrPrintf(szName1, sizeof(szName1), "%s %s", pszVendor, pszProduct);
884	RTStrPrintf(szName2, sizeof(szName2), "%s %s (#%u)", pszVendor, pszProduct, i);
885	}
886	else
887	{
888	strcpy(szName1, *pszVendor ? pszVendor : pszProduct);
889	RTStrPrintf(szName2, sizeof(szName2), "%s (#%u)", *pszVendor ? pszVendor : pszProduct, i);
890	}
891	}
892	else
893	{
894	RTStrPrintf(szName1, sizeof(szName1), "(#%u)", i);
895	strcpy(szName2, szName1);
896	}
897
898	if ( !strcmp(szName1, pThis->pszDeviceOpen)
899	\|\| !strcmp(szName2, pThis->pszDeviceOpen))
900	{
901	/*
902	* Found it! Now, get the client interface and stuff.
903	* Note that we could also query kIOSCSITaskDeviceUserClientTypeID here if the
904	* MMC client plugin is missing. For now we assume this won't be necessary.
905	*/
906	SInt32 Score = 0;
907	IOCFPlugInInterface **ppPlugInInterface = NULL;
908	krc = IOCreatePlugInInterfaceForService(DVDService, kIOMMCDeviceUserClientTypeID, kIOCFPlugInInterfaceID,
909	&ppPlugInInterface, &Score);
910	if (krc == KERN_SUCCESS)
911	{
912	HRESULT hrc = (*ppPlugInInterface)->QueryInterface(ppPlugInInterface,
913	CFUUIDGetUUIDBytes(kIOMMCDeviceInterfaceID),
914	(LPVOID *)&pThis->ppMMCDI);
915	(*ppPlugInInterface)->Release(ppPlugInInterface);
916	ppPlugInInterface = NULL;
917	if (hrc == S_OK)
918	{
919	pThis->ppScsiTaskDI = (*pThis->ppMMCDI)->GetSCSITaskDeviceInterface(pThis->ppMMCDI);
920	if (pThis->ppScsiTaskDI)
921	rc = VINF_SUCCESS;
922	else
923	{
924	LogRel(("GetSCSITaskDeviceInterface failed on '%s'\n", pThis->pszDeviceOpen));
925	rc = VERR_NOT_SUPPORTED;
926	(*pThis->ppMMCDI)->Release(pThis->ppMMCDI);
927	}
928	}
929	else
930	{
931	rc = VERR_GENERAL_FAILURE;//RTErrConvertFromDarwinCOM(krc);
932	pThis->ppMMCDI = NULL;
933	}
934	}
935	else /* Check for kIOSCSITaskDeviceUserClientTypeID? */
936	rc = VERR_GENERAL_FAILURE;//RTErrConvertFromDarwinKern(krc);
937
938	/* Obtain exclusive access to the device so we can send SCSI commands. */
939	if (RT_SUCCESS(rc))
940	rc = drvHostBaseObtainExclusiveAccess(pThis, DVDService);
941
942	/* Cleanup on failure. */
943	if (RT_FAILURE(rc))
944	{
945	if (pThis->ppScsiTaskDI)
946	{
947	(*pThis->ppScsiTaskDI)->Release(pThis->ppScsiTaskDI);
948	pThis->ppScsiTaskDI = NULL;
949	}
950	if (pThis->ppMMCDI)
951	{
952	(*pThis->ppMMCDI)->Release(pThis->ppMMCDI);
953	pThis->ppMMCDI = NULL;
954	}
955	}
956
957	IOObjectRelease(DVDService);
958	break;
959	}
960	}
961	CFRelease(PropsRef);
962	}
963	else
964	AssertMsgFailed(("krc=%#x\n", krc));
965
966	IOObjectRelease(DVDService);
967	i++;
968	}
969
970	IOObjectRelease(DVDServices);
971	return rc;
972
973	#elif defined(RT_OS_FREEBSD)
974	RTFILE hFileDevice;
975	int rc = RTFileOpen(&hFileDevice, pThis->pszDeviceOpen, RTFILE_O_READWRITE \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE);
976	if (RT_FAILURE(rc))
977	return rc;
978
979	/*
980	* The current device handle can't passthrough SCSI commands.
981	* We have to get he passthrough device path and open this.
982	*/
983	union ccb DeviceCCB;
984	memset(&DeviceCCB, 0, sizeof(DeviceCCB));
985
986	DeviceCCB.ccb_h.func_code = XPT_GDEVLIST;
987	int rcBSD = ioctl(RTFileToNative(hFileDevice), CAMGETPASSTHRU, &DeviceCCB);
988	if (!rcBSD)
989	{
990	char *pszPassthroughDevice = NULL;
991	rc = RTStrAPrintf(&pszPassthroughDevice, "/dev/%s%u",
992	DeviceCCB.cgdl.periph_name, DeviceCCB.cgdl.unit_number);
993	if (rc >= 0)
994	{
995	RTFILE hPassthroughDevice;
996	rc = RTFileOpen(&hPassthroughDevice, pszPassthroughDevice, RTFILE_O_READWRITE \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE);
997	RTStrFree(pszPassthroughDevice);
998	if (RT_SUCCESS(rc))
999	{
1000	/* Get needed device parameters. */
1001
1002	/*
1003	* The device path, target id and lun id. Those are
1004	* needed for the SCSI passthrough ioctl.
1005	*/
1006	memset(&DeviceCCB, 0, sizeof(DeviceCCB));
1007	DeviceCCB.ccb_h.func_code = XPT_GDEVLIST;
1008
1009	rcBSD = ioctl(RTFileToNative(hPassthroughDevice), CAMGETPASSTHRU, &DeviceCCB);
1010	if (!rcBSD)
1011	{
1012	if (DeviceCCB.cgdl.status != CAM_GDEVLIST_ERROR)
1013	{
1014	pThis->ScsiBus = DeviceCCB.ccb_h.path_id;
1015	pThis->ScsiTargetID = DeviceCCB.ccb_h.target_id;
1016	pThis->ScsiLunID = DeviceCCB.ccb_h.target_lun;
1017	*pFileDevice = hPassthroughDevice;
1018	}
1019	else
1020	{
1021	/* The passthrough device wasn't found. */
1022	rc = VERR_NOT_FOUND;
1023	}
1024	}
1025	else
1026	rc = RTErrConvertFromErrno(errno);
1027
1028	if (RT_FAILURE(rc))
1029	RTFileClose(hPassthroughDevice);
1030	}
1031	}
1032	else
1033	rc = VERR_NO_STR_MEMORY;
1034	}
1035	else
1036	rc = RTErrConvertFromErrno(errno);
1037
1038	RTFileClose(hFileDevice);
1039	return rc;
1040
1041	#else
1042	uint32_t fFlags = (fReadOnly ? RTFILE_O_READ : RTFILE_O_READWRITE) \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE;
1043	# ifdef RT_OS_LINUX
1044	fFlags \|= RTFILE_O_NON_BLOCK;
1045	# endif
1046	return RTFileOpen(pFileDevice, pThis->pszDeviceOpen, fFlags);
1047	#endif
1048	}
1049
1050	#else /* RT_OS_SOLARIS */
1051
1052	/**
1053	* Solaris wrapper for RTFileOpen.
1054	*
1055	* Solaris has to deal with two filehandles, a block and a raw one. Rather than messing
1056	* with drvHostBaseOpen's function signature & body, having a separate one is better.
1057	*
1058	* @returns VBox status code.
1059	*/
1060	static int drvHostBaseOpen(PDRVHOSTBASE pThis, PRTFILE pFileBlockDevice, PRTFILE pFileRawDevice, bool fReadOnly)
1061	{
1062	unsigned fFlags = (fReadOnly ? RTFILE_O_READ : RTFILE_O_READWRITE)
1063	\| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE \| RTFILE_O_NON_BLOCK;
1064	int rc = RTFileOpen(pFileBlockDevice, pThis->pszDeviceOpen, fFlags);
1065	if (RT_SUCCESS(rc))
1066	{
1067	rc = RTFileOpen(pFileRawDevice, pThis->pszRawDeviceOpen, fFlags);
1068	if (RT_SUCCESS(rc))
1069	return rc;
1070
1071	LogRel(("DVD: failed to open device %s rc=%Rrc\n", pThis->pszRawDeviceOpen, rc));
1072	RTFileClose(*pFileBlockDevice);
1073	}
1074	else
1075	LogRel(("DVD: failed to open device %s rc=%Rrc\n", pThis->pszDeviceOpen, rc));
1076	return rc;
1077	}
1078	#endif /* RT_OS_SOLARIS */
1079
1080
1081	/**
1082	* (Re)opens the device.
1083	*
1084	* This is used to open the device during construction, but it's also used to re-open
1085	* the device when a media is inserted. This re-open will kill off any cached data
1086	* that Linux for some peculiar reason thinks should survive a media change...
1087	*
1088	* @returns VBOX status code.
1089	* @param pThis Instance data.
1090	*/
1091	static int drvHostBaseReopen(PDRVHOSTBASE pThis)
1092	{
1093	#ifndef RT_OS_DARWIN /* Only one open for darwin. */
1094	LogFlow(("%s-%d: drvHostBaseReopen: '%s'\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->pszDeviceOpen));
1095
1096	RTFILE hFileDevice;
1097	#ifdef RT_OS_SOLARIS
1098	if (pThis->hFileRawDevice != NIL_RTFILE)
1099	{
1100	RTFileClose(pThis->hFileRawDevice);
1101	pThis->hFileRawDevice = NIL_RTFILE;
1102	}
1103	if (pThis->hFileDevice != NIL_RTFILE)
1104	{
1105	RTFileClose(pThis->hFileDevice);
1106	pThis->hFileDevice = NIL_RTFILE;
1107	}
1108	RTFILE hFileRawDevice;
1109	int rc = drvHostBaseOpen(pThis, &hFileDevice, &hFileRawDevice, pThis->fReadOnlyConfig);
1110	#else
1111	int rc = drvHostBaseOpen(pThis, &hFileDevice, pThis->fReadOnlyConfig);
1112	#endif
1113	if (RT_FAILURE(rc))
1114	{
1115	if (!pThis->fReadOnlyConfig)
1116	{
1117	LogFlow(("%s-%d: drvHostBaseReopen: '%s' - retry readonly (%Rrc)\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->pszDeviceOpen, rc));
1118	#ifdef RT_OS_SOLARIS
1119	rc = drvHostBaseOpen(pThis, &hFileDevice, &hFileRawDevice, false);
1120	#else
1121	rc = drvHostBaseOpen(pThis, &hFileDevice, false);
1122	#endif
1123	}
1124	if (RT_FAILURE(rc))
1125	{
1126	LogFlow(("%s-%d: failed to open device '%s', rc=%Rrc\n",
1127	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->pszDevice, rc));
1128	return rc;
1129	}
1130	pThis->fReadOnly = true;
1131	}
1132	else
1133	pThis->fReadOnly = pThis->fReadOnlyConfig;
1134
1135	#ifdef RT_OS_SOLARIS
1136	if (pThis->hFileRawDevice != NIL_RTFILE)
1137	RTFileClose(pThis->hFileRawDevice);
1138	pThis->hFileRawDevice = hFileRawDevice;
1139	#endif
1140
1141	if (pThis->hFileDevice != NIL_RTFILE)
1142	RTFileClose(pThis->hFileDevice);
1143	pThis->hFileDevice = hFileDevice;
1144	#else /* RT_OS_DARWIN */
1145	RT_NOREF(pThis);
1146	#endif /* RT_OS_DARWIN */
1147	return VINF_SUCCESS;
1148	}
1149
1150
1151	/**
1152	* Queries the media size.
1153	*
1154	* @returns VBox status code.
1155	* @param pThis Pointer to the instance data.
1156	* @param pcb Where to store the media size in bytes.
1157	*/
1158	static DECLCALLBACK(int) drvHostBaseGetMediaSize(PDRVHOSTBASE pThis, uint64_t *pcb)
1159	{
1160	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_FREEBSD)
1161	/*
1162	* Try a READ_CAPACITY command...
1163	*/
1164	struct
1165	{
1166	uint32_t cBlocks;
1167	uint32_t cbBlock;
1168	} Buf = {0, 0};
1169	uint32_t cbBuf = sizeof(Buf);
1170	uint8_t abCmd[16] =
1171	{
1172	SCSI_READ_CAPACITY, 0, 0, 0, 0, 0, 0,
1173	0,0,0,0,0,0,0,0,0
1174	};
1175	int rc = DRVHostBaseScsiCmd(pThis, abCmd, 6, PDMMEDIATXDIR_FROM_DEVICE, &Buf, &cbBuf, NULL, 0, 0);
1176	if (RT_SUCCESS(rc))
1177	{
1178	Assert(cbBuf == sizeof(Buf));
1179	Buf.cBlocks = RT_BE2H_U32(Buf.cBlocks);
1180	Buf.cbBlock = RT_BE2H_U32(Buf.cbBlock);
1181	//if (Buf.cbBlock > 2048) /* everyone else is doing this... check if it needed/right.*/
1182	// Buf.cbBlock = 2048;
1183	pThis->cbBlock = Buf.cbBlock;
1184
1185	pcb = (uint64_t)Buf.cBlocks Buf.cbBlock;
1186	}
1187	return rc;
1188
1189	#elif defined(RT_OS_SOLARIS)
1190	/*
1191	* Sun docs suggests using DKIOCGGEOM instead of DKIOCGMEDIAINFO, but
1192	* Sun themselves use DKIOCGMEDIAINFO for DVDs/CDs, and use DKIOCGGEOM
1193	* for secondary storage devices.
1194	*/
1195	struct dk_minfo MediaInfo;
1196	if (ioctl(RTFileToNative(pThis->hFileRawDevice), DKIOCGMEDIAINFO, &MediaInfo) == 0)
1197	{
1198	pcb = MediaInfo.dki_capacity (uint64_t)MediaInfo.dki_lbsize;
1199	return VINF_SUCCESS;
1200	}
1201	return RTFileSeek(pThis->hFileDevice, 0, RTFILE_SEEK_END, pcb);
1202
1203	#elif defined(RT_OS_WINDOWS)
1204	/* use NT api, retry a few times if the media is being verified. */
1205	IO_STATUS_BLOCK IoStatusBlock = {0};
1206	FILE_FS_SIZE_INFORMATION FsSize= {0};
1207	NTSTATUS rcNt = NtQueryVolumeInformationFile((HANDLE)RTFileToNative(pThis->hFileDevice), &IoStatusBlock,
1208	&FsSize, sizeof(FsSize), FileFsSizeInformation);
1209	int cRetries = 5;
1210	while (rcNt == STATUS_VERIFY_REQUIRED && cRetries-- > 0)
1211	{
1212	RTThreadSleep(10);
1213	rcNt = NtQueryVolumeInformationFile((HANDLE)RTFileToNative(pThis->hFileDevice), &IoStatusBlock,
1214	&FsSize, sizeof(FsSize), FileFsSizeInformation);
1215	}
1216	if (rcNt >= 0)
1217	{
1218	pcb = FsSize.TotalAllocationUnits.QuadPart FsSize.BytesPerSector;
1219	return VINF_SUCCESS;
1220	}
1221
1222	/* convert nt status code to VBox status code. */
1223	/** @todo Make conversion function!. */
1224	int rc = VERR_GENERAL_FAILURE;
1225	switch (rcNt)
1226	{
1227	case STATUS_NO_MEDIA_IN_DEVICE: rc = VERR_MEDIA_NOT_PRESENT; break;
1228	case STATUS_VERIFY_REQUIRED: rc = VERR_TRY_AGAIN; break;
1229	}
1230	LogFlow(("drvHostBaseGetMediaSize: NtQueryVolumeInformationFile -> %#lx\n", rcNt, rc));
1231	return rc;
1232	#else
1233	return RTFileSeek(pThis->hFileDevice, 0, RTFILE_SEEK_END, pcb);
1234	#endif
1235	}
1236
1237
1238	#if defined(RT_OS_DARWIN) \|\| defined(RT_OS_FREEBSD)
1239	/**
1240	* Execute a SCSI command.
1241	*
1242	* @param pThis The instance data.
1243	* @param pbCmd Pointer to the SCSI command.
1244	* @param cbCmd The size of the SCSI command.
1245	* @param enmTxDir The transfer direction.
1246	* @param pvBuf The buffer. Can be NULL if enmTxDir is PDMMEDIATXDIR_NONE.
1247	* @param pcbBuf Where to get the buffer size from and put the actual transfer size. Can be NULL.
1248	* @param pbSense Where to put the sense data. Can be NULL.
1249	* @param cbSense Size of the sense data buffer.
1250	* @param cTimeoutMillies The timeout. 0 mean the default timeout.
1251	*
1252	* @returns VINF_SUCCESS on success (no sense code).
1253	* @returns VERR_UNRESOLVED_ERROR if sense code is present.
1254	* @returns Some other VBox status code on failures without sense code.
1255	*
1256	* @todo Fix VERR_UNRESOLVED_ERROR abuse.
1257	*/
1258	DECLCALLBACK(int) DRVHostBaseScsiCmd(PDRVHOSTBASE pThis, const uint8_t *pbCmd, size_t cbCmd, PDMMEDIATXDIR enmTxDir,
1259	void pvBuf, uint32_t pcbBuf, uint8_t *pbSense, size_t cbSense, uint32_t cTimeoutMillies)
1260	{
1261	/*
1262	* Minimal input validation.
1263	*/
1264	Assert(enmTxDir == PDMMEDIATXDIR_NONE \|\| enmTxDir == PDMMEDIATXDIR_FROM_DEVICE \|\| enmTxDir == PDMMEDIATXDIR_TO_DEVICE);
1265	Assert(!pvBuf \|\| pcbBuf);
1266	Assert(pvBuf \|\| enmTxDir == PDMMEDIATXDIR_NONE);
1267	Assert(pbSense \|\| !cbSense);
1268	AssertPtr(pbCmd);
1269	Assert(cbCmd <= 16 && cbCmd >= 1);
1270	const uint32_t cbBuf = pcbBuf ? *pcbBuf : 0;
1271	if (pcbBuf)
1272	*pcbBuf = 0;
1273
1274	# ifdef RT_OS_DARWIN
1275	Assert(pThis->ppScsiTaskDI);
1276
1277	int rc = VERR_GENERAL_FAILURE;
1278	SCSITaskInterface *ppScsiTaskI = (pThis->ppScsiTaskDI)->CreateSCSITask(pThis->ppScsiTaskDI);
1279	if (!ppScsiTaskI)
1280	return VERR_NO_MEMORY;
1281	do
1282	{
1283	/* Setup the scsi command. */
1284	SCSICommandDescriptorBlock cdb = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
1285	memcpy(&cdb[0], pbCmd, cbCmd);
1286	IOReturn irc = (*ppScsiTaskI)->SetCommandDescriptorBlock(ppScsiTaskI, cdb, cbCmd);
1287	AssertBreak(irc == kIOReturnSuccess);
1288
1289	/* Setup the buffer. */
1290	if (enmTxDir == PDMMEDIATXDIR_NONE)
1291	irc = (*ppScsiTaskI)->SetScatterGatherEntries(ppScsiTaskI, NULL, 0, 0, kSCSIDataTransfer_NoDataTransfer);
1292	else
1293	{
1294	IOVirtualRange Range = { (IOVirtualAddress)pvBuf, cbBuf };
1295	irc = (*ppScsiTaskI)->SetScatterGatherEntries(ppScsiTaskI, &Range, 1, cbBuf,
1296	enmTxDir == PDMMEDIATXDIR_FROM_DEVICE
1297	? kSCSIDataTransfer_FromTargetToInitiator
1298	: kSCSIDataTransfer_FromInitiatorToTarget);
1299	}
1300	AssertBreak(irc == kIOReturnSuccess);
1301
1302	/* Set the timeout. */
1303	irc = (ppScsiTaskI)->SetTimeoutDuration(ppScsiTaskI, cTimeoutMillies ? cTimeoutMillies : 30000 /ms*/);
1304	AssertBreak(irc == kIOReturnSuccess);
1305
1306	/* Execute the command and get the response. */
1307	SCSI_Sense_Data SenseData = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
1308	SCSIServiceResponse ServiceResponse = kSCSIServiceResponse_Request_In_Process;
1309	SCSITaskStatus TaskStatus = kSCSITaskStatus_GOOD;
1310	UInt64 cbReturned = 0;
1311	irc = (*ppScsiTaskI)->ExecuteTaskSync(ppScsiTaskI, &SenseData, &TaskStatus, &cbReturned);
1312	AssertBreak(irc == kIOReturnSuccess);
1313	if (pcbBuf)
1314	*pcbBuf = (int32_t)cbReturned;
1315
1316	irc = (*ppScsiTaskI)->GetSCSIServiceResponse(ppScsiTaskI, &ServiceResponse);
1317	AssertBreak(irc == kIOReturnSuccess);
1318	AssertBreak(ServiceResponse == kSCSIServiceResponse_TASK_COMPLETE);
1319
1320	if (TaskStatus == kSCSITaskStatus_GOOD)
1321	rc = VINF_SUCCESS;
1322	else if ( TaskStatus == kSCSITaskStatus_CHECK_CONDITION
1323	&& pbSense)
1324	{
1325	memset(pbSense, 0, cbSense); /* lazy */
1326	memcpy(pbSense, &SenseData, RT_MIN(sizeof(SenseData), cbSense));
1327	rc = VERR_UNRESOLVED_ERROR;
1328	}
1329	/** @todo convert sense codes when caller doesn't wish to do this himself. */
1330	/*else if ( TaskStatus == kSCSITaskStatus_CHECK_CONDITION
1331	&& SenseData.ADDITIONAL_SENSE_CODE == 0x3A)
1332	rc = VERR_MEDIA_NOT_PRESENT; */
1333	else
1334	{
1335	rc = enmTxDir == PDMMEDIATXDIR_NONE
1336	? VERR_DEV_IO_ERROR
1337	: enmTxDir == PDMMEDIATXDIR_FROM_DEVICE
1338	? VERR_READ_ERROR
1339	: VERR_WRITE_ERROR;
1340	if (pThis->cLogRelErrors++ < 10)
1341	LogRel(("DVD scsi error: cmd={%.*Rhxs} TaskStatus=%#x key=%#x ASC=%#x ASCQ=%#x (%Rrc)\n",
1342	cbCmd, pbCmd, TaskStatus, SenseData.SENSE_KEY, SenseData.ADDITIONAL_SENSE_CODE,
1343	SenseData.ADDITIONAL_SENSE_CODE_QUALIFIER, rc));
1344	}
1345	} while (0);
1346
1347	(*ppScsiTaskI)->Release(ppScsiTaskI);
1348
1349	# elif defined(RT_OS_FREEBSD)
1350	int rc = VINF_SUCCESS;
1351	int rcBSD = 0;
1352	union ccb DeviceCCB;
1353	union ccb *pDeviceCCB = &DeviceCCB;
1354	u_int32_t fFlags;
1355
1356	memset(pDeviceCCB, 0, sizeof(DeviceCCB));
1357	pDeviceCCB->ccb_h.path_id = pThis->ScsiBus;
1358	pDeviceCCB->ccb_h.target_id = pThis->ScsiTargetID;
1359	pDeviceCCB->ccb_h.target_lun = pThis->ScsiLunID;
1360
1361	/* The SCSI INQUIRY command can't be passed through directly. */
1362	if (pbCmd[0] == SCSI_INQUIRY)
1363	{
1364	pDeviceCCB->ccb_h.func_code = XPT_GDEV_TYPE;
1365
1366	rcBSD = ioctl(RTFileToNative(pThis->hFileDevice), CAMIOCOMMAND, pDeviceCCB);
1367	if (!rcBSD)
1368	{
1369	uint32_t cbCopy = cbBuf < sizeof(struct scsi_inquiry_data)
1370	? cbBuf
1371	: sizeof(struct scsi_inquiry_data);;
1372	memcpy(pvBuf, &pDeviceCCB->cgd.inq_data, cbCopy);
1373	memset(pbSense, 0, cbSense);
1374
1375	if (pcbBuf)
1376	*pcbBuf = cbCopy;
1377	}
1378	else
1379	rc = RTErrConvertFromErrno(errno);
1380	}
1381	else
1382	{
1383	/* Copy the CDB. */
1384	memcpy(&pDeviceCCB->csio.cdb_io.cdb_bytes, pbCmd, cbCmd);
1385
1386	/* Set direction. */
1387	if (enmTxDir == PDMMEDIATXDIR_NONE)
1388	fFlags = CAM_DIR_NONE;
1389	else if (enmTxDir == PDMMEDIATXDIR_FROM_DEVICE)
1390	fFlags = CAM_DIR_IN;
1391	else
1392	fFlags = CAM_DIR_OUT;
1393
1394	fFlags \|= CAM_DEV_QFRZDIS;
1395
1396	cam_fill_csio(&pDeviceCCB->csio, 1, NULL, fFlags, MSG_SIMPLE_Q_TAG,
1397	(u_int8_t *)pvBuf, cbBuf, cbSense, cbCmd,
1398	cTimeoutMillies ? cTimeoutMillies : 30000/* timeout */);
1399
1400	/* Send command */
1401	rcBSD = ioctl(RTFileToNative(pThis->hFileDevice), CAMIOCOMMAND, pDeviceCCB);
1402	if (!rcBSD)
1403	{
1404	switch (pDeviceCCB->ccb_h.status & CAM_STATUS_MASK)
1405	{
1406	case CAM_REQ_CMP:
1407	rc = VINF_SUCCESS;
1408	break;
1409	case CAM_SEL_TIMEOUT:
1410	rc = VERR_DEV_IO_ERROR;
1411	break;
1412	case CAM_CMD_TIMEOUT:
1413	rc = VERR_TIMEOUT;
1414	break;
1415	default:
1416	rc = VERR_DEV_IO_ERROR;
1417	}
1418
1419	if (pcbBuf)
1420	*pcbBuf = cbBuf - pDeviceCCB->csio.resid;
1421
1422	if (pbSense)
1423	memcpy(pbSense, &pDeviceCCB->csio.sense_data,
1424	cbSense - pDeviceCCB->csio.sense_resid);
1425	}
1426	else
1427	rc = RTErrConvertFromErrno(errno);
1428	}
1429	# endif
1430
1431	return rc;
1432	}
1433	#endif
1434
1435
1436	/**
1437	* Media present.
1438	* Query the size and notify the above driver / device.
1439	*
1440	* @param pThis The instance data.
1441	*/
1442	int DRVHostBaseMediaPresent(PDRVHOSTBASE pThis)
1443	{
1444	/*
1445	* Open the drive.
1446	*/
1447	int rc = drvHostBaseReopen(pThis);
1448	if (RT_FAILURE(rc))
1449	return rc;
1450
1451	/*
1452	* Determine the size.
1453	*/
1454	uint64_t cb;
1455	rc = pThis->pfnGetMediaSize(pThis, &cb);
1456	if (RT_FAILURE(rc))
1457	{
1458	LogFlow(("%s-%d: failed to figure media size of %s, rc=%Rrc\n",
1459	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->pszDevice, rc));
1460	return rc;
1461	}
1462
1463	/*
1464	* Update the data and inform the unit.
1465	*/
1466	pThis->cbSize = cb;
1467	pThis->fMediaPresent = true;
1468	if (pThis->pDrvMountNotify)
1469	pThis->pDrvMountNotify->pfnMountNotify(pThis->pDrvMountNotify);
1470	LogFlow(("%s-%d: drvHostBaseMediaPresent: cbSize=%lld (%#llx)\n",
1471	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, pThis->cbSize, pThis->cbSize));
1472	return VINF_SUCCESS;
1473	}
1474
1475
1476	/**
1477	* Media no longer present.
1478	* @param pThis The instance data.
1479	*/
1480	void DRVHostBaseMediaNotPresent(PDRVHOSTBASE pThis)
1481	{
1482	pThis->fMediaPresent = false;
1483	pThis->fLocked = false;
1484	pThis->PCHSGeometry.cCylinders = 0;
1485	pThis->PCHSGeometry.cHeads = 0;
1486	pThis->PCHSGeometry.cSectors = 0;
1487	pThis->LCHSGeometry.cCylinders = 0;
1488	pThis->LCHSGeometry.cHeads = 0;
1489	pThis->LCHSGeometry.cSectors = 0;
1490	if (pThis->pDrvMountNotify)
1491	pThis->pDrvMountNotify->pfnUnmountNotify(pThis->pDrvMountNotify);
1492	}
1493
1494
1495	#ifdef RT_OS_WINDOWS
1496
1497	/**
1498	* Window procedure for the invisible window used to catch the WM_DEVICECHANGE broadcasts.
1499	*/
1500	static LRESULT CALLBACK DeviceChangeWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1501	{
1502	Log2(("DeviceChangeWindowProc: hwnd=%08x uMsg=%08x\n", hwnd, uMsg));
1503	if (uMsg == WM_DESTROY)
1504	{
1505	PDRVHOSTBASE pThis = (PDRVHOSTBASE)GetWindowLongPtr(hwnd, GWLP_USERDATA);
1506	if (pThis)
1507	ASMAtomicXchgSize(&pThis->hwndDeviceChange, NULL);
1508	PostQuitMessage(0);
1509	}
1510
1511	if (uMsg != WM_DEVICECHANGE)
1512	return DefWindowProc(hwnd, uMsg, wParam, lParam);
1513
1514	PDEV_BROADCAST_HDR lpdb = (PDEV_BROADCAST_HDR)lParam;
1515	PDRVHOSTBASE pThis = (PDRVHOSTBASE)GetWindowLongPtr(hwnd, GWLP_USERDATA);
1516	Assert(pThis);
1517	if (pThis == NULL)
1518	return 0;
1519
1520	switch (wParam)
1521	{
1522	case DBT_DEVICEARRIVAL:
1523	case DBT_DEVICEREMOVECOMPLETE:
1524	// Check whether a CD or DVD was inserted into or removed from a drive.
1525	if (lpdb->dbch_devicetype == DBT_DEVTYP_VOLUME)
1526	{
1527	PDEV_BROADCAST_VOLUME lpdbv = (PDEV_BROADCAST_VOLUME)lpdb;
1528	if ( (lpdbv->dbcv_flags & DBTF_MEDIA)
1529	&& (pThis->fUnitMask & lpdbv->dbcv_unitmask))
1530	{
1531	RTCritSectEnter(&pThis->CritSect);
1532	if (wParam == DBT_DEVICEARRIVAL)
1533	{
1534	int cRetries = 10;
1535	int rc = DRVHostBaseMediaPresent(pThis);
1536	while (RT_FAILURE(rc) && cRetries-- > 0)
1537	{
1538	RTThreadSleep(50);
1539	rc = DRVHostBaseMediaPresent(pThis);
1540	}
1541	}
1542	else
1543	DRVHostBaseMediaNotPresent(pThis);
1544	RTCritSectLeave(&pThis->CritSect);
1545	}
1546	}
1547	break;
1548	}
1549	return TRUE;
1550	}
1551
1552	#endif /* RT_OS_WINDOWS */
1553
1554
1555	/**
1556	* This thread will periodically poll the device for media presence.
1557	*
1558	* @returns Ignored.
1559	* @param ThreadSelf Handle of this thread. Ignored.
1560	* @param pvUser Pointer to the driver instance structure.
1561	*/
1562	static DECLCALLBACK(int) drvHostBaseMediaThread(RTTHREAD ThreadSelf, void *pvUser)
1563	{
1564	PDRVHOSTBASE pThis = (PDRVHOSTBASE)pvUser;
1565	LogFlow(("%s-%d: drvHostBaseMediaThread: ThreadSelf=%p pvUser=%p\n",
1566	pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, ThreadSelf, pvUser));
1567	#ifdef RT_OS_WINDOWS
1568	static WNDCLASS s_classDeviceChange = {0};
1569	static ATOM s_hAtomDeviceChange = 0;
1570
1571	/*
1572	* Register custom window class.
1573	*/
1574	if (s_hAtomDeviceChange == 0)
1575	{
1576	memset(&s_classDeviceChange, 0, sizeof(s_classDeviceChange));
1577	s_classDeviceChange.lpfnWndProc = DeviceChangeWindowProc;
1578	s_classDeviceChange.lpszClassName = "VBOX_DeviceChangeClass";
1579	s_classDeviceChange.hInstance = GetModuleHandle("VBoxDD.dll");
1580	Assert(s_classDeviceChange.hInstance);
1581	s_hAtomDeviceChange = RegisterClassA(&s_classDeviceChange);
1582	Assert(s_hAtomDeviceChange);
1583	}
1584
1585	/*
1586	* Create Window w/ the pThis as user data.
1587	*/
1588	HWND hwnd = CreateWindow((LPCTSTR)s_hAtomDeviceChange, "", WS_POPUP, 0, 0, 0, 0, 0, 0, s_classDeviceChange.hInstance, 0);
1589	AssertMsg(hwnd, ("CreateWindow failed with %d\n", GetLastError()));
1590	SetWindowLongPtr(hwnd, GWLP_USERDATA, (LONG_PTR)pThis);
1591
1592	/*
1593	* Signal the waiting EMT thread that everything went fine.
1594	*/
1595	ASMAtomicXchgPtr((void * volatile *)&pThis->hwndDeviceChange, hwnd);
1596	RTThreadUserSignal(ThreadSelf);
1597	if (!hwnd)
1598	{
1599	LogFlow(("%s-%d: drvHostBaseMediaThread: returns VERR_GENERAL_FAILURE\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance));
1600	return VERR_GENERAL_FAILURE;
1601	}
1602	LogFlow(("%s-%d: drvHostBaseMediaThread: Created hwndDeviceChange=%p\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance, hwnd));
1603
1604	/*
1605	* Message pump.
1606	*/
1607	MSG Msg;
1608	BOOL fRet;
1609	while ((fRet = GetMessage(&Msg, NULL, 0, 0)) != FALSE)
1610	{
1611	if (fRet != -1)
1612	{
1613	TranslateMessage(&Msg);
1614	DispatchMessage(&Msg);
1615	}
1616	//else: handle the error and possibly exit
1617	}
1618	Assert(!pThis->hwndDeviceChange);
1619
1620	#else /* !RT_OS_WINDOWS */
1621	bool fFirst = true;
1622	int cRetries = 10;
1623	while (!pThis->fShutdownPoller)
1624	{
1625	/*
1626	* Perform the polling (unless we've run out of 50ms retries).
1627	*/
1628	if ( pThis->pfnPoll
1629	&& cRetries-- > 0)
1630	{
1631
1632	int rc = pThis->pfnPoll(pThis);
1633	if (RT_FAILURE(rc))
1634	{
1635	RTSemEventWait(pThis->EventPoller, 50);
1636	continue;
1637	}
1638	}
1639
1640	/*
1641	* Signal EMT after the first go.
1642	*/
1643	if (fFirst)
1644	{
1645	RTThreadUserSignal(ThreadSelf);
1646	fFirst = false;
1647	}
1648
1649	/*
1650	* Sleep.
1651	*/
1652	int rc = RTSemEventWait(pThis->EventPoller, pThis->cMilliesPoller);
1653	if ( RT_FAILURE(rc)
1654	&& rc != VERR_TIMEOUT)
1655	{
1656	AssertMsgFailed(("rc=%Rrc\n", rc));
1657	pThis->ThreadPoller = NIL_RTTHREAD;
1658	LogFlow(("drvHostBaseMediaThread: returns %Rrc\n", rc));
1659	return rc;
1660	}
1661	cRetries = 10;
1662	}
1663
1664	#endif /* !RT_OS_WINDOWS */
1665
1666	/* (Don't clear the thread handle here, the destructor thread is using it to wait.) */
1667	LogFlow(("%s-%d: drvHostBaseMediaThread: returns VINF_SUCCESS\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance));
1668	return VINF_SUCCESS;
1669	}
1670
1671	/* -=-=-=-=- driver interface -=-=-=-=- */
1672
1673
1674	/**
1675	* Done state load operation.
1676	*
1677	* @returns VBox load code.
1678	* @param pDrvIns Driver instance of the driver which registered the data unit.
1679	* @param pSSM SSM operation handle.
1680	*/
1681	static DECLCALLBACK(int) drvHostBaseLoadDone(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM)
1682	{
1683	RT_NOREF(pSSM);
1684	PDRVHOSTBASE pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTBASE);
1685	LogFlow(("%s-%d: drvHostBaseMediaThread:\n", pThis->pDrvIns->pReg->szName, pThis->pDrvIns->iInstance));
1686	RTCritSectEnter(&pThis->CritSect);
1687
1688	/*
1689	* Tell the device/driver above us that the media status is uncertain.
1690	*/
1691	if (pThis->pDrvMountNotify)
1692	{
1693	pThis->pDrvMountNotify->pfnUnmountNotify(pThis->pDrvMountNotify);
1694	if (pThis->fMediaPresent)
1695	pThis->pDrvMountNotify->pfnMountNotify(pThis->pDrvMountNotify);
1696	}
1697
1698	RTCritSectLeave(&pThis->CritSect);
1699	return VINF_SUCCESS;
1700	}
1701
1702
1703	/** @copydoc FNPDMDRVDESTRUCT */
1704	DECLCALLBACK(void) DRVHostBaseDestruct(PPDMDRVINS pDrvIns)
1705	{
1706	PDRVHOSTBASE pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTBASE);
1707	LogFlow(("%s-%d: drvHostBaseDestruct: iInstance=%d\n", pDrvIns->pReg->szName, pDrvIns->iInstance, pDrvIns->iInstance));
1708
1709	/*
1710	* Terminate the thread.
1711	*/
1712	if (pThis->ThreadPoller != NIL_RTTHREAD)
1713	{
1714	pThis->fShutdownPoller = true;
1715	int rc;
1716	int cTimes = 50;
1717	do
1718	{
1719	#ifdef RT_OS_WINDOWS
1720	if (pThis->hwndDeviceChange)
1721	PostMessage(pThis->hwndDeviceChange, WM_CLOSE, 0, 0); /* default win proc will destroy the window */
1722	#else
1723	RTSemEventSignal(pThis->EventPoller);
1724	#endif
1725	rc = RTThreadWait(pThis->ThreadPoller, 100, NULL);
1726	} while (cTimes-- > 0 && rc == VERR_TIMEOUT);
1727
1728	if (!rc)
1729	pThis->ThreadPoller = NIL_RTTHREAD;
1730	}
1731
1732	/*
1733	* Unlock the drive if we've locked it or we're in passthru mode.
1734	*/
1735	#ifdef RT_OS_DARWIN
1736	if ( ( pThis->fLocked
1737	\|\| pThis->IMedia.pfnSendCmd)
1738	&& pThis->ppScsiTaskDI
1739	#else /** @todo Check if the other guys can mix pfnDoLock with scsi passthru.
1740	* (We're currently not unlocking the device after use. See todo in DevATA.cpp.) */
1741	if ( pThis->fLocked
1742	&& pThis->hFileDevice != NIL_RTFILE
1743	#endif
1744	&& pThis->pfnDoLock)
1745	{
1746	int rc = pThis->pfnDoLock(pThis, false);
1747	if (RT_SUCCESS(rc))
1748	pThis->fLocked = false;
1749	}
1750
1751	/*
1752	* Cleanup the other resources.
1753	*/
1754	#ifdef RT_OS_WINDOWS
1755	if (pThis->hwndDeviceChange)
1756	{
1757	if (SetWindowLongPtr(pThis->hwndDeviceChange, GWLP_USERDATA, 0) == (LONG_PTR)pThis)
1758	PostMessage(pThis->hwndDeviceChange, WM_CLOSE, 0, 0); /* default win proc will destroy the window */
1759	pThis->hwndDeviceChange = NULL;
1760	}
1761	#else
1762	if (pThis->EventPoller != NULL)
1763	{
1764	RTSemEventDestroy(pThis->EventPoller);
1765	pThis->EventPoller = NULL;
1766	}
1767	#endif
1768
1769	#ifdef RT_OS_DARWIN
1770	/*
1771	* The unclaiming doesn't seem to mean much, the DVD is actually
1772	* remounted when we release exclusive access. I'm not quite sure
1773	* if I should put the unclaim first or not...
1774	*
1775	* Anyway, that it's automatically remounted very good news for us,
1776	* because that means we don't have to mess with that ourselves. Of
1777	* course there is the unlikely scenario that we've succeeded in claiming
1778	* and umount the DVD but somehow failed to gain exclusive scsi access...
1779	*/
1780	if (pThis->ppScsiTaskDI)
1781	{
1782	LogFlow(("%s-%d: releasing exclusive scsi access!\n", pDrvIns->pReg->szName, pDrvIns->iInstance));
1783	(*pThis->ppScsiTaskDI)->ReleaseExclusiveAccess(pThis->ppScsiTaskDI);
1784	(*pThis->ppScsiTaskDI)->Release(pThis->ppScsiTaskDI);
1785	pThis->ppScsiTaskDI = NULL;
1786	}
1787	if (pThis->pDADisk)
1788	{
1789	LogFlow(("%s-%d: unclaiming the disk!\n", pDrvIns->pReg->szName, pDrvIns->iInstance));
1790	DADiskUnclaim(pThis->pDADisk);
1791	CFRelease(pThis->pDADisk);
1792	pThis->pDADisk = NULL;
1793	}
1794	if (pThis->ppMMCDI)
1795	{
1796	LogFlow(("%s-%d: releasing the MMC object!\n", pDrvIns->pReg->szName, pDrvIns->iInstance));
1797	(*pThis->ppMMCDI)->Release(pThis->ppMMCDI);
1798	pThis->ppMMCDI = NULL;
1799	}
1800	if (pThis->MasterPort != IO_OBJECT_NULL)
1801	{
1802	mach_port_deallocate(mach_task_self(), pThis->MasterPort);
1803	pThis->MasterPort = IO_OBJECT_NULL;
1804	}
1805	if (pThis->pDASession)
1806	{
1807	LogFlow(("%s-%d: releasing the DA session!\n", pDrvIns->pReg->szName, pDrvIns->iInstance));
1808	CFRelease(pThis->pDASession);
1809	pThis->pDASession = NULL;
1810	}
1811	#else
1812	if (pThis->hFileDevice != NIL_RTFILE)
1813	{
1814	int rc = RTFileClose(pThis->hFileDevice);
1815	AssertRC(rc);
1816	pThis->hFileDevice = NIL_RTFILE;
1817	}
1818	#endif
1819
1820	#ifdef RT_OS_SOLARIS
1821	if (pThis->hFileRawDevice != NIL_RTFILE)
1822	{
1823	int rc = RTFileClose(pThis->hFileRawDevice);
1824	AssertRC(rc);
1825	pThis->hFileRawDevice = NIL_RTFILE;
1826	}
1827
1828	if (pThis->pszRawDeviceOpen)
1829	{
1830	RTStrFree(pThis->pszRawDeviceOpen);
1831	pThis->pszRawDeviceOpen = NULL;
1832	}
1833	#endif
1834
1835	if (pThis->pszDevice)
1836	{
1837	MMR3HeapFree(pThis->pszDevice);
1838	pThis->pszDevice = NULL;
1839	}
1840
1841	if (pThis->pszDeviceOpen)
1842	{
1843	RTStrFree(pThis->pszDeviceOpen);
1844	pThis->pszDeviceOpen = NULL;
1845	}
1846
1847	/* Forget about the notifications. */
1848	pThis->pDrvMountNotify = NULL;
1849
1850	/* Leave the instance operational if this is just a cleanup of the state
1851	* after an attach error happened. So don't destroy the critsect then. */
1852	if (!pThis->fKeepInstance && RTCritSectIsInitialized(&pThis->CritSect))
1853	RTCritSectDelete(&pThis->CritSect);
1854	LogFlow(("%s-%d: drvHostBaseDestruct completed\n", pDrvIns->pReg->szName, pDrvIns->iInstance));
1855	}
1856
1857
1858	/**
1859	* Initializes the instance data (init part 1).
1860	*
1861	* The driver which derives from this base driver will override function pointers after
1862	* calling this method, and complete the construction by calling DRVHostBaseInitFinish().
1863	*
1864	* On failure call DRVHostBaseDestruct().
1865	*
1866	* @returns VBox status code.
1867	* @param pDrvIns Driver instance.
1868	* @param pCfg Configuration handle.
1869	* @param enmType Device type.
1870	*/
1871	int DRVHostBaseInitData(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, PDMMEDIATYPE enmType)
1872	{
1873	PDRVHOSTBASE pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTBASE);
1874	LogFlow(("%s-%d: DRVHostBaseInitData: iInstance=%d\n", pDrvIns->pReg->szName, pDrvIns->iInstance, pDrvIns->iInstance));
1875
1876	/*
1877	* Initialize most of the data members.
1878	*/
1879	pThis->pDrvIns = pDrvIns;
1880	pThis->fKeepInstance = false;
1881	pThis->ThreadPoller = NIL_RTTHREAD;
1882	#ifdef RT_OS_DARWIN
1883	pThis->MasterPort = IO_OBJECT_NULL;
1884	pThis->ppMMCDI = NULL;
1885	pThis->ppScsiTaskDI = NULL;
1886	pThis->cbBlock = 0;
1887	pThis->pDADisk = NULL;
1888	pThis->pDASession = NULL;
1889	#else
1890	pThis->hFileDevice = NIL_RTFILE;
1891	#endif
1892	#ifdef RT_OS_SOLARIS
1893	pThis->hFileRawDevice = NIL_RTFILE;
1894	#endif
1895	pThis->enmType = enmType;
1896	//pThis->cErrors = 0;
1897	pThis->fAttachFailError = true; /* It's an error until we've read the config. */
1898
1899	pThis->pfnGetMediaSize = drvHostBaseGetMediaSize;
1900
1901	/* IBase. */
1902	pDrvIns->IBase.pfnQueryInterface = drvHostBaseQueryInterface;
1903
1904	/* IMedia. */
1905	pThis->IMedia.pfnRead = drvHostBaseRead;
1906	pThis->IMedia.pfnWrite = drvHostBaseWrite;
1907	pThis->IMedia.pfnFlush = drvHostBaseFlush;
1908	pThis->IMedia.pfnIsReadOnly = drvHostBaseIsReadOnly;
1909	pThis->IMedia.pfnGetSize = drvHostBaseGetSize;
1910	pThis->IMedia.pfnGetType = drvHostBaseGetType;
1911	pThis->IMedia.pfnGetUuid = drvHostBaseGetUuid;
1912	pThis->IMedia.pfnIoBufAlloc = drvHostBaseIoBufAlloc;
1913	pThis->IMedia.pfnIoBufFree = drvHostBaseIoBufFree;
1914	pThis->IMedia.pfnBiosGetPCHSGeometry = drvHostBaseGetPCHSGeometry;
1915	pThis->IMedia.pfnBiosSetPCHSGeometry = drvHostBaseSetPCHSGeometry;
1916	pThis->IMedia.pfnBiosGetLCHSGeometry = drvHostBaseGetLCHSGeometry;
1917	pThis->IMedia.pfnBiosSetLCHSGeometry = drvHostBaseSetLCHSGeometry;
1918	pThis->IMedia.pfnBiosIsVisible = drvHostBaseIsVisible;
1919
1920	/* IMount. */
1921	pThis->IMount.pfnUnmount = drvHostBaseUnmount;
1922	pThis->IMount.pfnIsMounted = drvHostBaseIsMounted;
1923	pThis->IMount.pfnLock = drvHostBaseLock;
1924	pThis->IMount.pfnUnlock = drvHostBaseUnlock;
1925	pThis->IMount.pfnIsLocked = drvHostBaseIsLocked;
1926
1927	/*
1928	* Get the IBlockPort & IMountNotify interfaces of the above driver/device.
1929	*/
1930	pThis->pDrvMediaPort = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMIMEDIAPORT);
1931	if (!pThis->pDrvMediaPort)
1932	{
1933	AssertMsgFailed(("Configuration error: No media port interface above!\n"));
1934	return VERR_PDM_MISSING_INTERFACE_ABOVE;
1935	}
1936	pThis->pDrvMountNotify = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMIMOUNTNOTIFY);
1937
1938	/*
1939	* Query configuration.
1940	*/
1941	/* Device */
1942	int rc = CFGMR3QueryStringAlloc(pCfg, "Path", &pThis->pszDevice);
1943	if (RT_FAILURE(rc))
1944	{
1945	AssertMsgFailed(("Configuration error: query for \"Path\" string returned %Rra.\n", rc));
1946	return rc;
1947	}
1948
1949	/* Mountable */
1950	uint32_t u32;
1951	rc = CFGMR3QueryU32(pCfg, "Interval", &u32);
1952	if (RT_SUCCESS(rc))
1953	pThis->cMilliesPoller = u32;
1954	else if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1955	pThis->cMilliesPoller = 1000;
1956	else if (RT_FAILURE(rc))
1957	{
1958	AssertMsgFailed(("Configuration error: Query \"Mountable\" resulted in %Rrc.\n", rc));
1959	return rc;
1960	}
1961
1962	/* ReadOnly */
1963	rc = CFGMR3QueryBool(pCfg, "ReadOnly", &pThis->fReadOnlyConfig);
1964	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1965	pThis->fReadOnlyConfig = enmType == PDMMEDIATYPE_DVD \|\| enmType == PDMMEDIATYPE_CDROM ? true : false;
1966	else if (RT_FAILURE(rc))
1967	{
1968	AssertMsgFailed(("Configuration error: Query \"ReadOnly\" resulted in %Rrc.\n", rc));
1969	return rc;
1970	}
1971
1972	/* Locked */
1973	rc = CFGMR3QueryBool(pCfg, "Locked", &pThis->fLocked);
1974	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1975	pThis->fLocked = false;
1976	else if (RT_FAILURE(rc))
1977	{
1978	AssertMsgFailed(("Configuration error: Query \"Locked\" resulted in %Rrc.\n", rc));
1979	return rc;
1980	}
1981
1982	/* BIOS visible */
1983	rc = CFGMR3QueryBool(pCfg, "BIOSVisible", &pThis->fBiosVisible);
1984	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1985	pThis->fBiosVisible = true;
1986	else if (RT_FAILURE(rc))
1987	{
1988	AssertMsgFailed(("Configuration error: Query \"BIOSVisible\" resulted in %Rrc.\n", rc));
1989	return rc;
1990	}
1991
1992	/* Uuid */
1993	char *psz;
1994	rc = CFGMR3QueryStringAlloc(pCfg, "Uuid", &psz);
1995	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1996	RTUuidClear(&pThis->Uuid);
1997	else if (RT_SUCCESS(rc))
1998	{
1999	rc = RTUuidFromStr(&pThis->Uuid, psz);
2000	if (RT_FAILURE(rc))
2001	{
2002	AssertMsgFailed(("Configuration error: Uuid from string failed on \"%s\", rc=%Rrc.\n", psz, rc));
2003	MMR3HeapFree(psz);
2004	return rc;
2005	}
2006	MMR3HeapFree(psz);
2007	}
2008	else
2009	{
2010	AssertMsgFailed(("Configuration error: Failed to obtain the uuid, rc=%Rrc.\n", rc));
2011	return rc;
2012	}
2013
2014	/* Define whether attach failure is an error (default) or not. */
2015	bool fAttachFailError;
2016	rc = CFGMR3QueryBool(pCfg, "AttachFailError", &fAttachFailError);
2017	if (RT_FAILURE(rc))
2018	fAttachFailError = true;
2019	pThis->fAttachFailError = fAttachFailError;
2020
2021	/* name to open & watch for */
2022	#ifdef RT_OS_WINDOWS
2023	int iBit = RT_C_TO_UPPER(pThis->pszDevice[0]) - 'A';
2024	if ( iBit > 'Z' - 'A'
2025	\|\| pThis->pszDevice[1] != ':'
2026	\|\| pThis->pszDevice[2])
2027	{
2028	AssertMsgFailed(("Configuration error: Invalid drive specification: '%s'\n", pThis->pszDevice));
2029	return VERR_INVALID_PARAMETER;
2030	}
2031	pThis->fUnitMask = 1 << iBit;
2032	RTStrAPrintf(&pThis->pszDeviceOpen, "\\\\.\\%s", pThis->pszDevice);
2033
2034	#elif defined(RT_OS_SOLARIS)
2035	char *pszBlockDevName = getfullblkname(pThis->pszDevice);
2036	if (!pszBlockDevName)
2037	return VERR_NO_MEMORY;
2038	pThis->pszDeviceOpen = RTStrDup(pszBlockDevName); /* for RTStrFree() */
2039	free(pszBlockDevName);
2040	pThis->pszRawDeviceOpen = RTStrDup(pThis->pszDevice);
2041
2042	#else
2043	pThis->pszDeviceOpen = RTStrDup(pThis->pszDevice);
2044	#endif
2045
2046	if (!pThis->pszDeviceOpen)
2047	return VERR_NO_MEMORY;
2048
2049	return VINF_SUCCESS;
2050	}
2051
2052
2053	/**
2054	* Do the 2nd part of the init after the derived driver has overridden the defaults.
2055	*
2056	* On failure call DRVHostBaseDestruct().
2057	*
2058	* @returns VBox status code.
2059	* @param pThis Pointer to the instance data.
2060	*/
2061	int DRVHostBaseInitFinish(PDRVHOSTBASE pThis)
2062	{
2063	int src = VINF_SUCCESS;
2064	PPDMDRVINS pDrvIns = pThis->pDrvIns;
2065
2066	/* log config summary */
2067	Log(("%s-%d: pszDevice='%s' (%s) cMilliesPoller=%d fReadOnlyConfig=%d fLocked=%d fBIOSVisible=%d Uuid=%RTuuid\n",
2068	pDrvIns->pReg->szName, pDrvIns->iInstance, pThis->pszDevice, pThis->pszDeviceOpen, pThis->cMilliesPoller,
2069	pThis->fReadOnlyConfig, pThis->fLocked, pThis->fBiosVisible, &pThis->Uuid));
2070
2071	/*
2072	* Check that there are no drivers below us.
2073	*/
2074	AssertMsgReturn(PDMDrvHlpNoAttach(pDrvIns) == VERR_PDM_NO_ATTACHED_DRIVER,
2075	("Configuration error: Not possible to attach anything to this driver!\n"),
2076	VERR_PDM_DRVINS_NO_ATTACH);
2077
2078	/*
2079	* Register saved state.
2080	*/
2081	int rc = PDMDrvHlpSSMRegisterLoadDone(pDrvIns, drvHostBaseLoadDone);
2082	if (RT_FAILURE(rc))
2083	return rc;
2084
2085	/*
2086	* Verify type.
2087	*/
2088	#ifdef RT_OS_WINDOWS
2089	UINT uDriveType = GetDriveType(pThis->pszDevice);
2090	switch (pThis->enmType)
2091	{
2092	case PDMMEDIATYPE_FLOPPY_360:
2093	case PDMMEDIATYPE_FLOPPY_720:
2094	case PDMMEDIATYPE_FLOPPY_1_20:
2095	case PDMMEDIATYPE_FLOPPY_1_44:
2096	case PDMMEDIATYPE_FLOPPY_2_88:
2097	case PDMMEDIATYPE_FLOPPY_FAKE_15_6:
2098	case PDMMEDIATYPE_FLOPPY_FAKE_63_5:
2099	if (uDriveType != DRIVE_REMOVABLE)
2100	{
2101	AssertMsgFailed(("Configuration error: '%s' is not a floppy (type=%d)\n",
2102	pThis->pszDevice, uDriveType));
2103	return VERR_INVALID_PARAMETER;
2104	}
2105	break;
2106	case PDMMEDIATYPE_CDROM:
2107	case PDMMEDIATYPE_DVD:
2108	if (uDriveType != DRIVE_CDROM)
2109	{
2110	AssertMsgFailed(("Configuration error: '%s' is not a cdrom (type=%d)\n",
2111	pThis->pszDevice, uDriveType));
2112	return VERR_INVALID_PARAMETER;
2113	}
2114	break;
2115	case PDMMEDIATYPE_HARD_DISK:
2116	default:
2117	AssertMsgFailed(("enmType=%d\n", pThis->enmType));
2118	return VERR_INVALID_PARAMETER;
2119	}
2120	#endif
2121
2122	/*
2123	* Open the device.
2124	*/
2125	#if defined(RT_OS_DARWIN)
2126	rc = drvHostBaseOpen(pThis, NULL, pThis->fReadOnlyConfig);
2127	#else
2128	rc = drvHostBaseReopen(pThis);
2129	#endif
2130	if (RT_FAILURE(rc))
2131	{
2132	char *pszDevice = pThis->pszDevice;
2133	#ifndef RT_OS_DARWIN
2134	char szPathReal[256];
2135	if ( RTPathExists(pszDevice)
2136	&& RT_SUCCESS(RTPathReal(pszDevice, szPathReal, sizeof(szPathReal))))
2137	pszDevice = szPathReal;
2138	pThis->hFileDevice = NIL_RTFILE;
2139	#endif
2140	#ifdef RT_OS_SOLARIS
2141	pThis->hFileRawDevice = NIL_RTFILE;
2142	#endif
2143
2144	/*
2145	* Disable CD/DVD passthrough in case it was enabled. Would cause
2146	* weird failures later when the guest issues commands. These would
2147	* all fail because of the invalid file handle. So use the normal
2148	* virtual CD/DVD code, which deals more gracefully with unavailable
2149	* "media" - actually a complete drive in this case.
2150	*/
2151	pThis->IMedia.pfnSendCmd = NULL;
2152	AssertMsgFailed(("Could not open host device %s, rc=%Rrc\n", pszDevice, rc));
2153	switch (rc)
2154	{
2155	case VERR_ACCESS_DENIED:
2156	return PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS,
2157	#ifdef RT_OS_LINUX
2158	N_("Cannot open host device '%s' for %s access. Check the permissions "
2159	"of that device ('/bin/ls -l %s'): Most probably you need to be member "
2160	"of the device group. Make sure that you logout/login after changing "
2161	"the group settings of the current user"),
2162	#else
2163	N_("Cannot open host device '%s' for %s access. Check the permissions "
2164	"of that device"),
2165	#endif
2166	pszDevice, pThis->fReadOnlyConfig ? "readonly" : "read/write",
2167	pszDevice);
2168	default:
2169	{
2170	if (pThis->fAttachFailError)
2171	return rc;
2172	int erc = PDMDrvHlpVMSetRuntimeError(pDrvIns, 0 /fFlags/,
2173	"DrvHost_MOUNTFAIL",
2174	N_("Cannot attach to host device '%s'"), pszDevice);
2175	AssertRC(erc);
2176	src = rc;
2177	}
2178	}
2179	}
2180	#ifdef RT_OS_WINDOWS
2181	if (RT_SUCCESS(src))
2182	DRVHostBaseMediaPresent(pThis);
2183	#endif
2184
2185	/*
2186	* Lock the drive if that's required by the configuration.
2187	*/
2188	if (pThis->fLocked)
2189	{
2190	if (pThis->pfnDoLock)
2191	rc = pThis->pfnDoLock(pThis, true);
2192	if (RT_FAILURE(rc))
2193	{
2194	AssertMsgFailed(("Failed to lock the dvd drive. rc=%Rrc\n", rc));
2195	return rc;
2196	}
2197	}
2198
2199	#ifndef RT_OS_WINDOWS
2200	if (RT_SUCCESS(src))
2201	{
2202	/*
2203	* Create the event semaphore which the poller thread will wait on.
2204	*/
2205	rc = RTSemEventCreate(&pThis->EventPoller);
2206	if (RT_FAILURE(rc))
2207	return rc;
2208	}
2209	#endif
2210
2211	/*
2212	* Initialize the critical section used for serializing the access to the media.
2213	*/
2214	rc = RTCritSectInit(&pThis->CritSect);
2215	if (RT_FAILURE(rc))
2216	return rc;
2217
2218	if (RT_SUCCESS(src))
2219	{
2220	/*
2221	* Start the thread which will poll for the media.
2222	*/
2223	rc = RTThreadCreate(&pThis->ThreadPoller, drvHostBaseMediaThread, pThis, 0,
2224	RTTHREADTYPE_INFREQUENT_POLLER, RTTHREADFLAGS_WAITABLE, "DVDMEDIA");
2225	if (RT_FAILURE(rc))
2226	{
2227	AssertMsgFailed(("Failed to create poller thread. rc=%Rrc\n", rc));
2228	return rc;
2229	}
2230
2231	/*
2232	* Wait for the thread to start up (!w32:) and do one detection loop.
2233	*/
2234	rc = RTThreadUserWait(pThis->ThreadPoller, 10000);
2235	AssertRC(rc);
2236	#ifdef RT_OS_WINDOWS
2237	if (!pThis->hwndDeviceChange)
2238	return VERR_GENERAL_FAILURE;
2239	#endif
2240	}
2241
2242	if (RT_FAILURE(src))
2243	return src;
2244	return rc;
2245	}
2246

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source: vbox/trunk/src/VBox/Devices/Storage/DrvHostBase.cpp@ 63723

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