DrvHostBase.cpp@ 4849

Last change on this file since 4849 was 4071, checked in by vboxsync, 17 years ago
Biggest check-in ever. New source code headers for all (C) innotek files.
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1	/** @file
2	*
3	* VBox storage devices:
4	* Host base drive access driver
5	*/
6
7	/*
8	* Copyright (C) 2006-2007 innotek GmbH
9	*
10	* This file is part of VirtualBox Open Source Edition (OSE), as
11	* available from http://www.virtualbox.org. This file is free software;
12	* you can redistribute it and/or modify it under the terms of the GNU
13	* General Public License as published by the Free Software Foundation,
14	* in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
15	* distribution. VirtualBox OSE is distributed in the hope that it will
16	* be useful, but WITHOUT ANY WARRANTY of any kind.
17	*/
18
19
20	/*******************************************************************************
21	* Header Files *
22	*******************************************************************************/
23	#define LOG_GROUP LOG_GROUP_DRV_HOST_BASE
24	#ifdef RT_OS_DARWIN
25	# include <mach/mach.h>
26	# include <Carbon/Carbon.h>
27	# include <IOKit/IOKitLib.h>
28	# include <IOKit/storage/IOStorageDeviceCharacteristics.h>
29	# include <IOKit/scsi-commands/SCSITaskLib.h>
30	# include <IOKit/scsi-commands/SCSICommandOperationCodes.h>
31	# include <IOKit/IOBSD.h>
32	# include <DiskArbitration/DiskArbitration.h>
33	# include <mach/mach_error.h>
34	# include <VBox/scsi.h>
35
36	#elif defined(RT_OS_L4)
37	/* Nothing special requires... yeah, right. */
38
39	#elif defined(RT_OS_LINUX)
40	# include <sys/ioctl.h>
41	# include <sys/fcntl.h>
42	# include <errno.h>
43
44	#elif defined(RT_OS_WINDOWS)
45	# define WIN32_NO_STATUS
46	# include <Windows.h>
47	# include <dbt.h>
48	# undef WIN32_NO_STATUS
49	# include <ntstatus.h>
50
51	/* from ntdef.h */
52	typedef LONG NTSTATUS;
53
54	/* from ntddk.h */
55	typedef struct _IO_STATUS_BLOCK {
56	union {
57	NTSTATUS Status;
58	PVOID Pointer;
59	};
60	ULONG_PTR Information;
61	} IO_STATUS_BLOCK, *PIO_STATUS_BLOCK;
62
63
64	/* from ntinternals.com */
65	typedef enum _FS_INFORMATION_CLASS {
66	FileFsVolumeInformation=1,
67	FileFsLabelInformation,
68	FileFsSizeInformation,
69	FileFsDeviceInformation,
70	FileFsAttributeInformation,
71	FileFsControlInformation,
72	FileFsFullSizeInformation,
73	FileFsObjectIdInformation,
74	FileFsMaximumInformation
75	} FS_INFORMATION_CLASS, *PFS_INFORMATION_CLASS;
76
77	typedef struct _FILE_FS_SIZE_INFORMATION {
78	LARGE_INTEGER TotalAllocationUnits;
79	LARGE_INTEGER AvailableAllocationUnits;
80	ULONG SectorsPerAllocationUnit;
81	ULONG BytesPerSector;
82	} FILE_FS_SIZE_INFORMATION, *PFILE_FS_SIZE_INFORMATION;
83
84	extern "C"
85	NTSTATUS __stdcall NtQueryVolumeInformationFile(
86	/IN/ HANDLE FileHandle,
87	/OUT/ PIO_STATUS_BLOCK IoStatusBlock,
88	/OUT/ PVOID FileSystemInformation,
89	/IN/ ULONG Length,
90	/IN/ FS_INFORMATION_CLASS FileSystemInformationClass );
91
92	#else
93	# error "Unsupported Platform."
94	#endif
95
96	#include <VBox/pdmdrv.h>
97	#include <iprt/assert.h>
98	#include <iprt/file.h>
99	#include <iprt/path.h>
100	#include <iprt/string.h>
101	#include <iprt/thread.h>
102	#include <iprt/semaphore.h>
103	#include <iprt/uuid.h>
104	#include <iprt/asm.h>
105	#include <iprt/critsect.h>
106	#include <iprt/ctype.h>
107
108	#include "DrvHostBase.h"
109
110
111
112
113	/* -=-=-=-=- IBlock -=-=-=-=- */
114
115	/** @copydoc PDMIBLOCK::pfnRead */
116	static DECLCALLBACK(int) drvHostBaseRead(PPDMIBLOCK pInterface, uint64_t off, void *pvBuf, size_t cbRead)
117	{
118	PDRVHOSTBASE pThis = PDMIBLOCK_2_DRVHOSTBASE(pInterface);
119	LogFlow(("%s-%d: drvHostBaseRead: off=%#llx pvBuf=%p cbRead=%#x (%s)\n",
120	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, off, pvBuf, cbRead, pThis->pszDevice));
121	RTCritSectEnter(&pThis->CritSect);
122
123	/*
124	* Check the state.
125	*/
126	int rc;
127	#ifdef RT_OS_DARWIN
128	if ( pThis->fMediaPresent
129	&& pThis->ppScsiTaskDI
130	&& pThis->cbBlock)
131	#else
132	if (pThis->fMediaPresent)
133	#endif
134	{
135	#ifdef RT_OS_DARWIN
136	/*
137	* Issue a READ(12) request.
138	*/
139	const uint32_t LBA = off / pThis->cbBlock;
140	AssertReturn(!(off % pThis->cbBlock), VERR_INVALID_PARAMETER);
141	const uint32_t cBlocks = cbRead / pThis->cbBlock;
142	AssertReturn(!(cbRead % pThis->cbBlock), VERR_INVALID_PARAMETER);
143	uint8_t abCmd[16] =
144	{
145	SCSI_READ_12, 0,
146	RT_BYTE4(LBA), RT_BYTE3(LBA), RT_BYTE2(LBA), RT_BYTE1(LBA),
147	RT_BYTE4(cBlocks), RT_BYTE3(cBlocks), RT_BYTE2(cBlocks), RT_BYTE1(cBlocks),
148	0, 0, 0, 0, 0
149	};
150	rc = DRVHostBaseScsiCmd(pThis, abCmd, 12, PDMBLOCKTXDIR_FROM_DEVICE, pvBuf, &cbRead, NULL, 0, 0);
151
152	#else
153	/*
154	* Seek and read.
155	*/
156	rc = RTFileSeek(pThis->FileDevice, off, RTFILE_SEEK_BEGIN, NULL);
157	if (VBOX_SUCCESS(rc))
158	{
159	rc = RTFileRead(pThis->FileDevice, pvBuf, cbRead, NULL);
160	if (VBOX_SUCCESS(rc))
161	{
162	Log2(("%s-%d: drvHostBaseRead: off=%#llx cbRead=%#x\n"
163	"%16.*Vhxd\n",
164	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, off, cbRead, cbRead, pvBuf));
165	}
166	else
167	Log(("%s-%d: drvHostBaseRead: RTFileRead(%d, %p, %#x) -> %Vrc (off=%#llx '%s')\n",
168	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->FileDevice,
169	pvBuf, cbRead, rc, off, pThis->pszDevice));
170	}
171	else
172	Log(("%s-%d: drvHostBaseRead: RTFileSeek(%d,%#llx,) -> %Vrc\n", pThis->pDrvIns->pDrvReg->szDriverName,
173	pThis->pDrvIns->iInstance, pThis->FileDevice, off, rc));
174	#endif
175	}
176	else
177	rc = VERR_MEDIA_NOT_PRESENT;
178
179	RTCritSectLeave(&pThis->CritSect);
180	LogFlow(("%s-%d: drvHostBaseRead: returns %Vrc\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, rc));
181	return rc;
182	}
183
184
185	/** @copydoc PDMIBLOCK::pfnWrite */
186	static DECLCALLBACK(int) drvHostBaseWrite(PPDMIBLOCK pInterface, uint64_t off, const void *pvBuf, size_t cbWrite)
187	{
188	PDRVHOSTBASE pThis = PDMIBLOCK_2_DRVHOSTBASE(pInterface);
189	LogFlow(("%s-%d: drvHostBaseWrite: off=%#llx pvBuf=%p cbWrite=%#x (%s)\n",
190	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, off, pvBuf, cbWrite, pThis->pszDevice));
191	Log2(("%s-%d: drvHostBaseWrite: off=%#llx cbWrite=%#x\n"
192	"%16.*Vhxd\n",
193	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, off, cbWrite, cbWrite, pvBuf));
194	RTCritSectEnter(&pThis->CritSect);
195
196	/*
197	* Check the state.
198	*/
199	int rc;
200	if (!pThis->fReadOnly)
201	{
202	if (pThis->fMediaPresent)
203	{
204	#ifdef RT_OS_DARWIN
205	/** @todo write support... */
206	rc = VERR_WRITE_PROTECT;
207
208	#else
209	/*
210	* Seek and write.
211	*/
212	rc = RTFileSeek(pThis->FileDevice, off, RTFILE_SEEK_BEGIN, NULL);
213	if (VBOX_SUCCESS(rc))
214	{
215	rc = RTFileWrite(pThis->FileDevice, pvBuf, cbWrite, NULL);
216	if (VBOX_FAILURE(rc))
217	Log(("%s-%d: drvHostBaseWrite: RTFileWrite(%d, %p, %#x) -> %Vrc (off=%#llx '%s')\n",
218	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->FileDevice,
219	pvBuf, cbWrite, rc, off, pThis->pszDevice));
220	}
221	else
222	Log(("%s-%d: drvHostBaseWrite: RTFileSeek(%d,%#llx,) -> %Vrc\n",
223	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->FileDevice, off, rc));
224	#endif
225	}
226	else
227	rc = VERR_MEDIA_NOT_PRESENT;
228	}
229	else
230	rc = VERR_WRITE_PROTECT;
231
232	RTCritSectLeave(&pThis->CritSect);
233	LogFlow(("%s-%d: drvHostBaseWrite: returns %Vrc\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, rc));
234	return rc;
235	}
236
237
238	/** @copydoc PDMIBLOCK::pfnFlush */
239	static DECLCALLBACK(int) drvHostBaseFlush(PPDMIBLOCK pInterface)
240	{
241	int rc;
242	PDRVHOSTBASE pThis = PDMIBLOCK_2_DRVHOSTBASE(pInterface);
243	LogFlow(("%s-%d: drvHostBaseFlush: (%s)\n",
244	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->pszDevice));
245	RTCritSectEnter(&pThis->CritSect);
246
247	if (pThis->fMediaPresent)
248	{
249	#ifdef RT_OS_DARWIN
250	rc = VINF_SUCCESS;
251	/** @todo scsi device buffer flush... */
252	#else
253	rc = RTFileFlush(pThis->FileDevice);
254	#endif
255	}
256	else
257	rc = VERR_MEDIA_NOT_PRESENT;
258
259	RTCritSectLeave(&pThis->CritSect);
260	LogFlow(("%s-%d: drvHostBaseFlush: returns %Vrc\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, rc));
261	return rc;
262	}
263
264
265	/** @copydoc PDMIBLOCK::pfnIsReadOnly */
266	static DECLCALLBACK(bool) drvHostBaseIsReadOnly(PPDMIBLOCK pInterface)
267	{
268	PDRVHOSTBASE pThis = PDMIBLOCK_2_DRVHOSTBASE(pInterface);
269	return pThis->fReadOnly;
270	}
271
272
273	/** @copydoc PDMIBLOCK::pfnGetSize */
274	static DECLCALLBACK(uint64_t) drvHostBaseGetSize(PPDMIBLOCK pInterface)
275	{
276	PDRVHOSTBASE pThis = PDMIBLOCK_2_DRVHOSTBASE(pInterface);
277	RTCritSectEnter(&pThis->CritSect);
278
279	uint64_t cb = 0;
280	if (pThis->fMediaPresent)
281	cb = pThis->cbSize;
282
283	RTCritSectLeave(&pThis->CritSect);
284	LogFlow(("%s-%d: drvHostBaseGetSize: returns %llu\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, cb));
285	return cb;
286	}
287
288
289	/** @copydoc PDMIBLOCK::pfnGetType */
290	static DECLCALLBACK(PDMBLOCKTYPE) drvHostBaseGetType(PPDMIBLOCK pInterface)
291	{
292	PDRVHOSTBASE pThis = PDMIBLOCK_2_DRVHOSTBASE(pInterface);
293	LogFlow(("%s-%d: drvHostBaseGetType: returns %d\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->enmType));
294	return pThis->enmType;
295	}
296
297
298	/** @copydoc PDMIBLOCK::pfnGetUuid */
299	static DECLCALLBACK(int) drvHostBaseGetUuid(PPDMIBLOCK pInterface, PRTUUID pUuid)
300	{
301	PDRVHOSTBASE pThis = PDMIBLOCK_2_DRVHOSTBASE(pInterface);
302
303	*pUuid = pThis->Uuid;
304
305	LogFlow(("%s-%d: drvHostBaseGetUuid: returns VINF_SUCCESS *pUuid=%Vuuid\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pUuid));
306	return VINF_SUCCESS;
307	}
308
309
310	/* -=-=-=-=- IBlockBios -=-=-=-=- */
311
312	/** Makes a PDRVHOSTBASE out of a PPDMIBLOCKBIOS. */
313	#define PDMIBLOCKBIOS_2_DRVHOSTBASE(pInterface) ( (PDRVHOSTBASE((uintptr_t)pInterface - RT_OFFSETOF(DRVHOSTBASE, IBlockBios))) )
314
315
316	/** @copydoc PDMIBLOCKBIOS::pfnGetGeometry */
317	static DECLCALLBACK(int) drvHostBaseGetGeometry(PPDMIBLOCKBIOS pInterface, uint32_t pcCylinders, uint32_t pcHeads, uint32_t *pcSectors)
318	{
319	PDRVHOSTBASE pThis = PDMIBLOCKBIOS_2_DRVHOSTBASE(pInterface);
320	RTCritSectEnter(&pThis->CritSect);
321
322	int rc = VINF_SUCCESS;
323	if (pThis->fMediaPresent)
324	{
325	if ( pThis->cCylinders > 0
326	&& pThis->cHeads > 0
327	&& pThis->cSectors > 0)
328	{
329	*pcCylinders = pThis->cCylinders;
330	*pcHeads = pThis->cHeads;
331	*pcSectors = pThis->cSectors;
332	}
333	else
334	rc = VERR_PDM_GEOMETRY_NOT_SET;
335	}
336	else
337	rc = VERR_PDM_MEDIA_NOT_MOUNTED;
338
339	RTCritSectLeave(&pThis->CritSect);
340	LogFlow(("%s-%d: drvHostBaseGetGeometry: returns %Vrc CHS={%d,%d,%d}\n",
341	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, rc, pcCylinders, pcHeads, *pcSectors));
342	return rc;
343	}
344
345
346	/** @copydoc PDMIBLOCKBIOS::pfnSetGeometry */
347	static DECLCALLBACK(int) drvHostBaseSetGeometry(PPDMIBLOCKBIOS pInterface, uint32_t cCylinders, uint32_t cHeads, uint32_t cSectors)
348	{
349	PDRVHOSTBASE pThis = PDMIBLOCKBIOS_2_DRVHOSTBASE(pInterface);
350	LogFlow(("%s-%d: drvHostBaseSetGeometry: cCylinders=%d cHeads=%d cSectors=%d\n",
351	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, cCylinders, cHeads, cSectors));
352	RTCritSectEnter(&pThis->CritSect);
353
354	int rc = VINF_SUCCESS;
355	if (pThis->fMediaPresent)
356	{
357	pThis->cCylinders = cCylinders;
358	pThis->cHeads = cHeads;
359	pThis->cSectors = cSectors;
360	}
361	else
362	{
363	AssertMsgFailed(("Invalid state! Not mounted!\n"));
364	rc = VERR_PDM_MEDIA_NOT_MOUNTED;
365	}
366
367	RTCritSectLeave(&pThis->CritSect);
368	return rc;
369	}
370
371
372	/** @copydoc PDMIBLOCKBIOS::pfnGetTranslation */
373	static DECLCALLBACK(int) drvHostBaseGetTranslation(PPDMIBLOCKBIOS pInterface, PPDMBIOSTRANSLATION penmTranslation)
374	{
375	PDRVHOSTBASE pThis = PDMIBLOCKBIOS_2_DRVHOSTBASE(pInterface);
376	RTCritSectEnter(&pThis->CritSect);
377
378	int rc = VINF_SUCCESS;
379	if (pThis->fMediaPresent)
380	{
381	if (pThis->fTranslationSet)
382	*penmTranslation = pThis->enmTranslation;
383	else
384	rc = VERR_PDM_TRANSLATION_NOT_SET;
385	}
386	else
387	rc = VERR_PDM_MEDIA_NOT_MOUNTED;
388
389	RTCritSectLeave(&pThis->CritSect);
390	LogFlow(("%s-%d: drvHostBaseGetTranslation: returns %Vrc *penmTranslation=%d\n",
391	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, rc, *penmTranslation));
392	return rc;
393	}
394
395
396	/** @copydoc PDMIBLOCKBIOS::pfnSetTranslation */
397	static DECLCALLBACK(int) drvHostBaseSetTranslation(PPDMIBLOCKBIOS pInterface, PDMBIOSTRANSLATION enmTranslation)
398	{
399	PDRVHOSTBASE pThis = PDMIBLOCKBIOS_2_DRVHOSTBASE(pInterface);
400	LogFlow(("%s-%d: drvHostBaseSetTranslation: enmTranslation=%d\n",
401	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, enmTranslation));
402	RTCritSectEnter(&pThis->CritSect);
403
404	int rc = VINF_SUCCESS;
405	if (pThis->fMediaPresent)
406	{
407	pThis->fTranslationSet = true;
408	pThis->enmTranslation = enmTranslation;
409	}
410	else
411	{
412	AssertMsgFailed(("Invalid state! Not mounted!\n"));
413	rc = VERR_PDM_MEDIA_NOT_MOUNTED;
414	}
415
416	RTCritSectLeave(&pThis->CritSect);
417	return rc;
418	}
419
420
421	/** @copydoc PDMIBLOCKBIOS::pfnIsVisible */
422	static DECLCALLBACK(bool) drvHostBaseIsVisible(PPDMIBLOCKBIOS pInterface)
423	{
424	PDRVHOSTBASE pThis = PDMIBLOCKBIOS_2_DRVHOSTBASE(pInterface);
425	return pThis->fBiosVisible;
426	}
427
428
429	/** @copydoc PDMIBLOCKBIOS::pfnGetType */
430	static DECLCALLBACK(PDMBLOCKTYPE) drvHostBaseBiosGetType(PPDMIBLOCKBIOS pInterface)
431	{
432	PDRVHOSTBASE pThis = PDMIBLOCKBIOS_2_DRVHOSTBASE(pInterface);
433	return pThis->enmType;
434	}
435
436
437
438	/* -=-=-=-=- IMount -=-=-=-=- */
439
440	/** @copydoc PDMIMOUNT::pfnMount */
441	static DECLCALLBACK(int) drvHostBaseMount(PPDMIMOUNT pInterface, const char pszFilename, const char pszCoreDriver)
442	{
443	/* We're not mountable. */
444	AssertMsgFailed(("drvHostBaseMount: This shouldn't be called!\n"));
445	return VERR_PDM_MEDIA_MOUNTED;
446	}
447
448
449	/** @copydoc PDMIMOUNT::pfnUnmount */
450	static DECLCALLBACK(int) drvHostBaseUnmount(PPDMIMOUNT pInterface, bool fForce)
451	{
452	LogFlow(("drvHostBaseUnmount: returns VERR_NOT_SUPPORTED\n"));
453	return VERR_NOT_SUPPORTED;
454	}
455
456
457	/** @copydoc PDMIMOUNT::pfnIsMounted */
458	static DECLCALLBACK(bool) drvHostBaseIsMounted(PPDMIMOUNT pInterface)
459	{
460	PDRVHOSTBASE pThis = PDMIMOUNT_2_DRVHOSTBASE(pInterface);
461	RTCritSectEnter(&pThis->CritSect);
462
463	bool fRc = pThis->fMediaPresent;
464
465	RTCritSectLeave(&pThis->CritSect);
466	return fRc;
467	}
468
469
470	/** @copydoc PDMIMOUNT::pfnIsLocked */
471	static DECLCALLBACK(int) drvHostBaseLock(PPDMIMOUNT pInterface)
472	{
473	PDRVHOSTBASE pThis = PDMIMOUNT_2_DRVHOSTBASE(pInterface);
474	RTCritSectEnter(&pThis->CritSect);
475
476	int rc = VINF_SUCCESS;
477	if (!pThis->fLocked)
478	{
479	if (pThis->pfnDoLock)
480	rc = pThis->pfnDoLock(pThis, true);
481	if (VBOX_SUCCESS(rc))
482	pThis->fLocked = true;
483	}
484	else
485	LogFlow(("%s-%d: drvHostBaseLock: already locked\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance));
486
487	RTCritSectLeave(&pThis->CritSect);
488	LogFlow(("%s-%d: drvHostBaseLock: returns %Vrc\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, rc));
489	return rc;
490	}
491
492
493	/** @copydoc PDMIMOUNT::pfnIsLocked */
494	static DECLCALLBACK(int) drvHostBaseUnlock(PPDMIMOUNT pInterface)
495	{
496	PDRVHOSTBASE pThis = PDMIMOUNT_2_DRVHOSTBASE(pInterface);
497	RTCritSectEnter(&pThis->CritSect);
498
499	int rc = VINF_SUCCESS;
500	if (pThis->fLocked)
501	{
502	if (pThis->pfnDoLock)
503	rc = pThis->pfnDoLock(pThis, false);
504	if (VBOX_SUCCESS(rc))
505	pThis->fLocked = false;
506	}
507	else
508	LogFlow(("%s-%d: drvHostBaseUnlock: not locked\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance));
509
510	RTCritSectLeave(&pThis->CritSect);
511	LogFlow(("%s-%d: drvHostBaseUnlock: returns %Vrc\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, rc));
512	return rc;
513	}
514
515
516	/** @copydoc PDMIMOUNT::pfnIsLocked */
517	static DECLCALLBACK(bool) drvHostBaseIsLocked(PPDMIMOUNT pInterface)
518	{
519	PDRVHOSTBASE pThis = PDMIMOUNT_2_DRVHOSTBASE(pInterface);
520	RTCritSectEnter(&pThis->CritSect);
521
522	bool fRc = pThis->fLocked;
523
524	RTCritSectLeave(&pThis->CritSect);
525	return fRc;
526	}
527
528
529	/* -=-=-=-=- IBase -=-=-=-=- */
530
531	/** @copydoc PDMIBASE::pfnQueryInterface. */
532	static DECLCALLBACK(void *) drvHostBaseQueryInterface(PPDMIBASE pInterface, PDMINTERFACE enmInterface)
533	{
534	PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
535	PDRVHOSTBASE pThis = PDMINS2DATA(pDrvIns, PDRVHOSTBASE);
536	switch (enmInterface)
537	{
538	case PDMINTERFACE_BASE:
539	return &pDrvIns->IBase;
540	case PDMINTERFACE_BLOCK:
541	return &pThis->IBlock;
542	case PDMINTERFACE_BLOCK_BIOS:
543	return pThis->fBiosVisible ? &pThis->IBlockBios : NULL;
544	case PDMINTERFACE_MOUNT:
545	return &pThis->IMount;
546	default:
547	return NULL;
548	}
549	}
550
551
552	/* -=-=-=-=- poller thread -=-=-=-=- */
553
554	#ifdef RT_OS_DARWIN
555	/** The runloop input source name for the disk arbitration events. */
556	#define MY_RUN_LOOP_MODE CFSTR("drvHostBaseDA")
557
558	/**
559	* Gets the BSD Name (/dev/disc[0-9]+) for the service.
560	*
561	* This is done by recursing down the I/O registry until we hit upon an entry
562	* with a BSD Name. Usually we find it two levels down. (Further down under
563	* the IOCDPartitionScheme, the volume (slices) BSD Name is found. We don't
564	* seem to have to go this far fortunately.)
565	*
566	* @return VINF_SUCCESS if found, VERR_FILE_NOT_FOUND otherwise.
567	* @param Entry The current I/O registry entry reference.
568	* @param pszName Where to store the name. 128 bytes.
569	* @param cRecursions Number of recursions. This is used as an precation
570	* just to limit the depth and avoid blowing the stack
571	* should we hit a bug or something.
572	*/
573	static int drvHostBaseGetBSDName(io_registry_entry_t Entry, char *pszName, unsigned cRecursions)
574	{
575	int rc = VERR_FILE_NOT_FOUND;
576	io_iterator_t Children = 0;
577	kern_return_t krc = IORegistryEntryGetChildIterator(Entry, kIOServicePlane, &Children);
578	if (krc == KERN_SUCCESS)
579	{
580	io_object_t Child;
581	while ( rc == VERR_FILE_NOT_FOUND
582	&& (Child = IOIteratorNext(Children)) != 0)
583	{
584	CFStringRef BSDNameStrRef = (CFStringRef)IORegistryEntryCreateCFProperty(Child, CFSTR(kIOBSDNameKey), kCFAllocatorDefault, 0);
585	if (BSDNameStrRef)
586	{
587	if (CFStringGetCString(BSDNameStrRef, pszName, 128, kCFStringEncodingUTF8))
588	rc = VINF_SUCCESS;
589	else
590	AssertFailed();
591	CFRelease(BSDNameStrRef);
592	}
593	if (rc == VERR_FILE_NOT_FOUND && cRecursions < 10)
594	rc = drvHostBaseGetBSDName(Child, pszName, cRecursions + 1);
595	IOObjectRelease(Child);
596	}
597	IOObjectRelease(Children);
598	}
599	return rc;
600	}
601
602
603	/**
604	* Callback notifying us that the async DADiskClaim()/DADiskUnmount call has completed.
605	*
606	* @param DiskRef The disk that was attempted claimed / unmounted.
607	* @param DissenterRef NULL on success, contains details on failure.
608	* @param pvContext Pointer to the return code variable.
609	*/
610	static void drvHostBaseDADoneCallback(DADiskRef DiskRef, DADissenterRef DissenterRef, void *pvContext)
611	{
612	int prc = (int )pvContext;
613	if (!DissenterRef)
614	*prc = 0;
615	else
616	*prc = DADissenterGetStatus(DissenterRef) ? DADissenterGetStatus(DissenterRef) : -1;
617	CFRunLoopStop(CFRunLoopGetCurrent());
618	}
619
620
621	/**
622	* Obtain exclusive access to the DVD device, umount it if necessary.
623	*
624	* @return VBox status code.
625	* @param pThis The driver instance.
626	* @param DVDService The DVD service object.
627	*/
628	static int drvHostBaseObtainExclusiveAccess(PDRVHOSTBASE pThis, io_object_t DVDService)
629	{
630	PPDMDRVINS pDrvIns = pThis->pDrvIns; NOREF(pDrvIns);
631
632	for (unsigned iTry = 0;; iTry++)
633	{
634	IOReturn irc = (*pThis->ppScsiTaskDI)->ObtainExclusiveAccess(pThis->ppScsiTaskDI);
635	if (irc == kIOReturnSuccess)
636	{
637	/*
638	* This is a bit weird, but if we unmounted the DVD drive we also need to
639	* unlock it afterwards or the guest won't be able to eject it later on.
640	*/
641	if (pThis->pDADisk)
642	{
643	uint8_t abCmd[16] =
644	{
645	SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL, 0, 0, 0, false, 0,
646	0,0,0,0,0,0,0,0,0,0
647	};
648	DRVHostBaseScsiCmd(pThis, abCmd, 6, PDMBLOCKTXDIR_NONE, NULL, NULL, NULL, 0, 0);
649	}
650	return VINF_SUCCESS;
651	}
652	if (irc == kIOReturnExclusiveAccess)
653	return VERR_SHARING_VIOLATION; /* already used exclusivly. */
654	if (irc != kIOReturnBusy)
655	return VERR_GENERAL_FAILURE; /* not mounted */
656
657	/*
658	* Attempt to the unmount all volumes of the device.
659	* It seems we can can do this all in one go without having to enumerate the
660	* volumes (sessions) and deal with them one by one. This is very fortuitous
661	* as the disk arbitration API is a bit cumbersome to deal with.
662	*/
663	if (iTry > 2)
664	return VERR_DRIVE_LOCKED;
665	char szName[128];
666	int rc = drvHostBaseGetBSDName(DVDService, &szName[0], 0);
667	if (VBOX_SUCCESS(rc))
668	{
669	pThis->pDASession = DASessionCreate(kCFAllocatorDefault);
670	if (pThis->pDASession)
671	{
672	DASessionScheduleWithRunLoop(pThis->pDASession, CFRunLoopGetCurrent(), MY_RUN_LOOP_MODE);
673	pThis->pDADisk = DADiskCreateFromBSDName(kCFAllocatorDefault, pThis->pDASession, szName);
674	if (pThis->pDADisk)
675	{
676	/*
677	* Try claim the device.
678	*/
679	Log(("%s-%d: calling DADiskClaim on '%s'.\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, szName));
680	int rcDA = -2;
681	DADiskClaim(pThis->pDADisk, kDADiskClaimOptionDefault, NULL, NULL, drvHostBaseDADoneCallback, &rcDA);
682	SInt32 rc32 = CFRunLoopRunInMode(MY_RUN_LOOP_MODE, 120.0, FALSE);
683	AssertMsg(rc32 == kCFRunLoopRunStopped, ("rc32=%RI32 (%RX32)\n", rc32, rc32));
684	if ( rc32 == kCFRunLoopRunStopped
685	&& !rcDA)
686	{
687	/*
688	* Try unmount the device.
689	*/
690	Log(("%s-%d: calling DADiskUnmount on '%s'.\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, szName));
691	rcDA = -2;
692	DADiskUnmount(pThis->pDADisk, kDADiskUnmountOptionWhole, drvHostBaseDADoneCallback, &rcDA);
693	SInt32 rc32 = CFRunLoopRunInMode(MY_RUN_LOOP_MODE, 120.0, FALSE);
694	AssertMsg(rc32 == kCFRunLoopRunStopped, ("rc32=%RI32 (%RX32)\n", rc32, rc32));
695	if ( rc32 == kCFRunLoopRunStopped
696	&& !rcDA)
697	{
698	iTry = 99;
699	DASessionUnscheduleFromRunLoop(pThis->pDASession, CFRunLoopGetCurrent(), MY_RUN_LOOP_MODE);
700	Log(("%s-%d: unmount succeed - retrying.\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
701	continue;
702	}
703	Log(("%s-%d: umount => rc32=%d & rcDA=%#x\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, rc32, rcDA));
704
705	/* failed - cleanup */
706	DADiskUnclaim(pThis->pDADisk);
707	}
708	else
709	Log(("%s-%d: claim => rc32=%d & rcDA=%#x\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, rc32, rcDA));
710
711	CFRelease(pThis->pDADisk);
712	pThis->pDADisk = NULL;
713	}
714	else
715	Log(("%s-%d: failed to open disk '%s'!\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, szName));
716
717	DASessionUnscheduleFromRunLoop(pThis->pDASession, CFRunLoopGetCurrent(), MY_RUN_LOOP_MODE);
718	CFRelease(pThis->pDASession);
719	pThis->pDASession = NULL;
720	}
721	else
722	Log(("%s-%d: failed to create DA session!\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
723	}
724	RTThreadSleep(10);
725	}
726	}
727	#endif /* RT_OS_DARWIN */
728
729
730	/**
731	* Wrapper for open / RTFileOpen / IOKit.
732	*
733	* @remark The Darwin code must correspond exactly to the enumeration
734	* done in Main/darwin/iokit.c.
735	*/
736	static int drvHostBaseOpen(PDRVHOSTBASE pThis, PRTFILE pFileDevice, bool fReadOnly)
737	{
738	#ifdef RT_OS_DARWIN
739	/* Darwin is kind of special... */
740	Assert(!pFileDevice); NOREF(pFileDevice);
741	Assert(!pThis->cbBlock);
742	Assert(!pThis->MasterPort);
743	Assert(!pThis->ppMMCDI);
744	Assert(!pThis->ppScsiTaskDI);
745
746	/*
747	* Open the master port on the first invocation.
748	*/
749	kern_return_t krc = IOMasterPort(MACH_PORT_NULL, &pThis->MasterPort);
750	AssertReturn(krc == KERN_SUCCESS, VERR_GENERAL_FAILURE);
751
752	/*
753	* Create a matching dictionary for searching for DVD services in the IOKit.
754	*
755	* [If I understand this correctly, plain CDROMs doesn't show up as
756	* IODVDServices. Too keep things simple, we will only support DVDs
757	* until somebody complains about it and we get hardware to test it on.
758	* (Unless I'm much mistaken, there aren't any (orignal) intel macs with
759	* plain cdroms.)]
760	*/
761	CFMutableDictionaryRef RefMatchingDict = IOServiceMatching("IODVDServices");
762	AssertReturn(RefMatchingDict, NULL);
763
764	/*
765	* do the search and get a collection of keyboards.
766	*/
767	io_iterator_t DVDServices = NULL;
768	IOReturn irc = IOServiceGetMatchingServices(pThis->MasterPort, RefMatchingDict, &DVDServices);
769	AssertMsgReturn(irc == kIOReturnSuccess, ("irc=%d\n", irc), NULL);
770	RefMatchingDict = NULL; /* the reference is consumed by IOServiceGetMatchingServices. */
771
772	/*
773	* Enumerate the DVD drives (services).
774	* (This enumeration must be identical to the one performed in DrvHostBase.cpp.)
775	*/
776	int rc = VERR_FILE_NOT_FOUND;
777	unsigned i = 0;
778	io_object_t DVDService;
779	while ((DVDService = IOIteratorNext(DVDServices)) != 0)
780	{
781	/*
782	* Get the properties we use to identify the DVD drive.
783	*
784	* While there is a (weird 12 byte) GUID, it isn't persistent
785	* accross boots. So, we have to use a combination of the
786	* vendor name and product name properties with an optional
787	* sequence number for identification.
788	*/
789	CFMutableDictionaryRef PropsRef = 0;
790	kern_return_t krc = IORegistryEntryCreateCFProperties(DVDService, &PropsRef, kCFAllocatorDefault, kNilOptions);
791	if (krc == KERN_SUCCESS)
792	{
793	/* Get the Device Characteristics dictionary. */
794	CFDictionaryRef DevCharRef = (CFDictionaryRef)CFDictionaryGetValue(PropsRef, CFSTR(kIOPropertyDeviceCharacteristicsKey));
795	if (DevCharRef)
796	{
797	/* The vendor name. */
798	char szVendor[128];
799	char *pszVendor = &szVendor[0];
800	CFTypeRef ValueRef = CFDictionaryGetValue(DevCharRef, CFSTR(kIOPropertyVendorNameKey));
801	if ( ValueRef
802	&& CFGetTypeID(ValueRef) == CFStringGetTypeID()
803	&& CFStringGetCString((CFStringRef)ValueRef, szVendor, sizeof(szVendor), kCFStringEncodingUTF8))
804	pszVendor = RTStrStrip(szVendor);
805	else
806	*pszVendor = '\0';
807
808	/* The product name. */
809	char szProduct[128];
810	char *pszProduct = &szProduct[0];
811	ValueRef = CFDictionaryGetValue(DevCharRef, CFSTR(kIOPropertyProductNameKey));
812	if ( ValueRef
813	&& CFGetTypeID(ValueRef) == CFStringGetTypeID()
814	&& CFStringGetCString((CFStringRef)ValueRef, szProduct, sizeof(szProduct), kCFStringEncodingUTF8))
815	pszProduct = RTStrStrip(szProduct);
816	else
817	*pszProduct = '\0';
818
819	/* Construct the two names and compare thwm with the one we're searching for. */
820	char szName1[256 + 32];
821	char szName2[256 + 32];
822	if (pszVendor \|\| pszProduct)
823	{
824	if (pszVendor && pszProduct)
825	{
826	RTStrPrintf(szName1, sizeof(szName1), "%s %s", pszVendor, pszProduct);
827	RTStrPrintf(szName2, sizeof(szName2), "%s %s (#%u)", pszVendor, pszProduct, i);
828	}
829	else
830	{
831	strcpy(szName1, *pszVendor ? pszVendor : pszProduct);
832	RTStrPrintf(szName2, sizeof(szName2), "%s %s (#%u)", *pszVendor ? pszVendor : pszProduct, i);
833	}
834	}
835	else
836	{
837	RTStrPrintf(szName1, sizeof(szName1), "(#%u)", i);
838	strcpy(szName2, szName1);
839	}
840
841	if ( !strcmp(szName1, pThis->pszDeviceOpen)
842	\|\| !strcmp(szName2, pThis->pszDeviceOpen))
843	{
844	/*
845	* Found it! Now, get the client interface and stuff.
846	* Note that we could also query kIOSCSITaskDeviceUserClientTypeID here if the
847	* MMC client plugin is missing. For now we assume this won't be necessary.
848	*/
849	SInt32 Score = 0;
850	IOCFPlugInInterface **ppPlugInInterface = NULL;
851	krc = IOCreatePlugInInterfaceForService(DVDService, kIOMMCDeviceUserClientTypeID, kIOCFPlugInInterfaceID,
852	&ppPlugInInterface, &Score);
853	if (krc == KERN_SUCCESS)
854	{
855	HRESULT hrc = (*ppPlugInInterface)->QueryInterface(ppPlugInInterface,
856	CFUUIDGetUUIDBytes(kIOMMCDeviceInterfaceID),
857	(LPVOID *)&pThis->ppMMCDI);
858	(*ppPlugInInterface)->Release(ppPlugInInterface);
859	ppPlugInInterface = NULL;
860	if (hrc == S_OK)
861	{
862	pThis->ppScsiTaskDI = (*pThis->ppMMCDI)->GetSCSITaskDeviceInterface(pThis->ppMMCDI);
863	if (pThis->ppScsiTaskDI)
864	rc = VINF_SUCCESS;
865	else
866	{
867	LogRel(("GetSCSITaskDeviceInterface failed on '%s'\n", pThis->pszDeviceOpen));
868	rc = VERR_NOT_SUPPORTED;
869	(*pThis->ppMMCDI)->Release(pThis->ppMMCDI);
870	}
871	}
872	else
873	{
874	rc = VERR_GENERAL_FAILURE;//RTErrConvertFromDarwinCOM(krc);
875	pThis->ppMMCDI = NULL;
876	}
877	}
878	else /* Check for kIOSCSITaskDeviceUserClientTypeID? */
879	rc = VERR_GENERAL_FAILURE;//RTErrConvertFromDarwinKern(krc);
880
881	/* Obtain exclusive access to the device so we can send SCSI commands. */
882	if (VBOX_SUCCESS(rc))
883	rc = drvHostBaseObtainExclusiveAccess(pThis, DVDService);
884
885	/* Cleanup on failure. */
886	if (VBOX_FAILURE(rc))
887	{
888	if (pThis->ppScsiTaskDI)
889	{
890	(*pThis->ppScsiTaskDI)->Release(pThis->ppScsiTaskDI);
891	pThis->ppScsiTaskDI = NULL;
892	}
893	if (pThis->ppMMCDI)
894	{
895	(*pThis->ppMMCDI)->Release(pThis->ppMMCDI);
896	pThis->ppMMCDI = NULL;
897	}
898	}
899
900	IOObjectRelease(DVDService);
901	break;
902	}
903	}
904	CFRelease(PropsRef);
905	}
906	else
907	AssertMsgFailed(("krc=%#x\n", krc));
908
909	IOObjectRelease(DVDService);
910	i++;
911	}
912
913	IOObjectRelease(DVDServices);
914	return rc;
915
916	#elif defined(RT_OS_LINUX)
917	/** @todo we've got RTFILE_O_NON_BLOCK now. Change the code to use RTFileOpen. */
918	int FileDevice = open(pThis->pszDeviceOpen, (pThis->fReadOnlyConfig ? O_RDONLY : O_RDWR) \| O_NONBLOCK);
919	if (FileDevice < 0)
920	return RTErrConvertFromErrno(errno);
921	*pFileDevice = FileDevice;
922	return VINF_SUCCESS;
923
924	#else
925	return RTFileOpen(pFileDevice, pThis->pszDeviceOpen,
926	(fReadOnly ? RTFILE_O_READ : RTFILE_O_READWRITE) \| RTFILE_O_OPEN \| RTFILE_O_DENY_NONE);
927	#endif
928	}
929
930
931	/**
932	* (Re)opens the device.
933	*
934	* This is used to open the device during construction, but it's also used to re-open
935	* the device when a media is inserted. This re-open will kill off any cached data
936	* that Linux for some peculiar reason thinks should survive a media change...
937	*
938	* @returns VBOX status code.
939	* @param pThis Instance data.
940	*/
941	static int drvHostBaseReopen(PDRVHOSTBASE pThis)
942	{
943	#ifndef RT_OS_DARWIN /* Only one open for darwin. */
944	LogFlow(("%s-%d: drvHostBaseReopen: '%s'\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->pszDeviceOpen));
945
946	RTFILE FileDevice;
947	int rc = drvHostBaseOpen(pThis, &FileDevice, pThis->fReadOnlyConfig);
948	if (VBOX_FAILURE(rc))
949	{
950	if (!pThis->fReadOnlyConfig)
951	{
952	LogFlow(("%s-%d: drvHostBaseReopen: '%s' - retry readonly (%Vrc)\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->pszDeviceOpen, rc));
953	rc = drvHostBaseOpen(pThis, &FileDevice, false);
954	}
955	if (VBOX_FAILURE(rc))
956	{
957	LogFlow(("%s-%d: failed to open device '%s', rc=%Vrc\n",
958	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->pszDevice, rc));
959	return rc;
960	}
961	pThis->fReadOnly = true;
962	}
963	else
964	pThis->fReadOnly = pThis->fReadOnlyConfig;
965
966	if (pThis->FileDevice != NIL_RTFILE)
967	RTFileClose(pThis->FileDevice);
968	pThis->FileDevice = FileDevice;
969	#endif /* !RT_OS_DARWIN */
970	return VINF_SUCCESS;
971	}
972
973
974	/**
975	* Queries the media size.
976	*
977	* @returns VBox status code.
978	* @param pThis Pointer to the instance data.
979	* @param pcb Where to store the media size in bytes.
980	*/
981	static int drvHostBaseGetMediaSize(PDRVHOSTBASE pThis, uint64_t *pcb)
982	{
983	#ifdef RT_OS_DARWIN
984	/*
985	* Try a READ_CAPACITY command...
986	*/
987	struct
988	{
989	uint32_t cBlocks;
990	uint32_t cbBlock;
991	} Buf = {0, 0};
992	size_t cbBuf = sizeof(Buf);
993	uint8_t abCmd[16] =
994	{
995	SCSI_READ_CAPACITY, 0, 0, 0, 0, 0, 0,
996	0,0,0,0,0,0,0,0,0
997	};
998	int rc = DRVHostBaseScsiCmd(pThis, abCmd, 6, PDMBLOCKTXDIR_FROM_DEVICE, &Buf, &cbBuf, NULL, 0, 0);
999	if (VBOX_SUCCESS(rc))
1000	{
1001	Assert(cbBuf == sizeof(Buf));
1002	Buf.cBlocks = RT_BE2H_U32(Buf.cBlocks);
1003	Buf.cbBlock = RT_BE2H_U32(Buf.cbBlock);
1004	//if (Buf.cbBlock > 2048) /* everyone else is doing this... check if it needed/right.*/
1005	// Buf.cbBlock = 2048;
1006	pThis->cbBlock = Buf.cbBlock;
1007
1008	pcb = (uint64_t)Buf.cBlocks Buf.cbBlock;
1009	}
1010	return rc;
1011
1012	#elif defined(RT_OS_WINDOWS)
1013	/* use NT api, retry a few times if the media is being verified. */
1014	IO_STATUS_BLOCK IoStatusBlock = {0};
1015	FILE_FS_SIZE_INFORMATION FsSize= {0};
1016	NTSTATUS rcNt = NtQueryVolumeInformationFile((HANDLE)pThis->FileDevice, &IoStatusBlock,
1017	&FsSize, sizeof(FsSize), FileFsSizeInformation);
1018	int cRetries = 5;
1019	while (rcNt == STATUS_VERIFY_REQUIRED && cRetries-- > 0)
1020	{
1021	RTThreadSleep(10);
1022	rcNt = NtQueryVolumeInformationFile((HANDLE)pThis->FileDevice, &IoStatusBlock,
1023	&FsSize, sizeof(FsSize), FileFsSizeInformation);
1024	}
1025	if (rcNt >= 0)
1026	{
1027	pcb = FsSize.TotalAllocationUnits.QuadPart FsSize.BytesPerSector;
1028	return VINF_SUCCESS;
1029	}
1030
1031	/* convert nt status code to VBox status code. */
1032	/** @todo Make convertion function!. */
1033	int rc = VERR_GENERAL_FAILURE;
1034	switch (rcNt)
1035	{
1036	case STATUS_NO_MEDIA_IN_DEVICE: rc = VERR_MEDIA_NOT_PRESENT; break;
1037	case STATUS_VERIFY_REQUIRED: rc = VERR_TRY_AGAIN; break;
1038	}
1039	LogFlow(("drvHostBaseGetMediaSize: NtQueryVolumeInformationFile -> %#lx\n", rcNt, rc));
1040	return rc;
1041	#else
1042	return RTFileSeek(pThis->FileDevice, 0, RTFILE_SEEK_END, pcb);
1043	#endif
1044	}
1045
1046
1047	#ifdef RT_OS_DARWIN
1048	/**
1049	* Execute a SCSI command.
1050	*
1051	* @param pThis The instance data.
1052	* @param pbCmd Pointer to the SCSI command.
1053	* @param cbCmd The size of the SCSI command.
1054	* @param enmTxDir The transfer direction.
1055	* @param pvBuf The buffer. Can be NULL if enmTxDir is PDMBLOCKTXDIR_NONE.
1056	* @param pcbBuf Where to get the buffer size from and put the actual transfer size. Can be NULL.
1057	* @param pbSense Where to put the sense data. Can be NULL.
1058	* @param cbSense Size of the sense data buffer.
1059	* @param cTimeoutMillies The timeout. 0 mean the default timeout.
1060	*
1061	* @returns VINF_SUCCESS on success (no sense code).
1062	* @returns VERR_UNRESOLVED_ERROR if sense code is present.
1063	* @returns Some other VBox status code on failures without sense code.
1064	*
1065	* @todo Fix VERR_UNRESOLVED_ERROR abuse.
1066	*/
1067	DECLCALLBACK(int) DRVHostBaseScsiCmd(PDRVHOSTBASE pThis, const uint8_t *pbCmd, size_t cbCmd, PDMBLOCKTXDIR enmTxDir,
1068	void pvBuf, size_t pcbBuf, uint8_t *pbSense, size_t cbSense, uint32_t cTimeoutMillies)
1069	{
1070	/*
1071	* Minimal input validation.
1072	*/
1073	Assert(enmTxDir == PDMBLOCKTXDIR_NONE \|\| enmTxDir == PDMBLOCKTXDIR_FROM_DEVICE \|\| enmTxDir == PDMBLOCKTXDIR_TO_DEVICE);
1074	Assert(!pvBuf \|\| pcbBuf);
1075	Assert(pvBuf \|\| enmTxDir == PDMBLOCKTXDIR_NONE);
1076	Assert(pbSense \|\| !cbSense);
1077	AssertPtr(pbCmd);
1078	Assert(cbCmd <= 16 && cbCmd >= 1);
1079	const size_t cbBuf = pcbBuf ? *pcbBuf : 0;
1080	if (pcbBuf)
1081	*pcbBuf = 0;
1082
1083	# ifdef RT_OS_DARWIN
1084	Assert(pThis->ppScsiTaskDI);
1085
1086	int rc = VERR_GENERAL_FAILURE;
1087	SCSITaskInterface *ppScsiTaskI = (pThis->ppScsiTaskDI)->CreateSCSITask(pThis->ppScsiTaskDI);
1088	if (!ppScsiTaskI)
1089	return VERR_NO_MEMORY;
1090	do
1091	{
1092	/* Setup the scsi command. */
1093	SCSICommandDescriptorBlock cdb = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
1094	memcpy(&cdb[0], pbCmd, cbCmd);
1095	IOReturn irc = (*ppScsiTaskI)->SetCommandDescriptorBlock(ppScsiTaskI, cdb, cbCmd);
1096	AssertBreak(irc == kIOReturnSuccess,);
1097
1098	/* Setup the buffer. */
1099	if (enmTxDir == PDMBLOCKTXDIR_NONE)
1100	irc = (*ppScsiTaskI)->SetScatterGatherEntries(ppScsiTaskI, NULL, 0, 0, kSCSIDataTransfer_NoDataTransfer);
1101	else
1102	{
1103	IOVirtualRange Range = { (IOVirtualAddress)pvBuf, cbBuf };
1104	irc = (*ppScsiTaskI)->SetScatterGatherEntries(ppScsiTaskI, &Range, 1, cbBuf,
1105	enmTxDir == PDMBLOCKTXDIR_FROM_DEVICE
1106	? kSCSIDataTransfer_FromTargetToInitiator
1107	: kSCSIDataTransfer_FromInitiatorToTarget);
1108	}
1109	AssertBreak(irc == kIOReturnSuccess,);
1110
1111	/* Set the timeout. */
1112	irc = (ppScsiTaskI)->SetTimeoutDuration(ppScsiTaskI, cTimeoutMillies ? cTimeoutMillies : 30000 /ms*/);
1113	AssertBreak(irc == kIOReturnSuccess,);
1114
1115	/* Execute the command and get the response. */
1116	SCSI_Sense_Data SenseData = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
1117	SCSIServiceResponse ServiceResponse = kSCSIServiceResponse_Request_In_Process;
1118	SCSITaskStatus TaskStatus = kSCSITaskStatus_GOOD;
1119	UInt64 cbReturned = 0;
1120	irc = (*ppScsiTaskI)->ExecuteTaskSync(ppScsiTaskI, &SenseData, &TaskStatus, &cbReturned);
1121	AssertBreak(irc == kIOReturnSuccess,);
1122	if (pcbBuf)
1123	*pcbBuf = cbReturned;
1124
1125	irc = (*ppScsiTaskI)->GetSCSIServiceResponse(ppScsiTaskI, &ServiceResponse);
1126	AssertBreak(irc == kIOReturnSuccess,);
1127	AssertBreak(ServiceResponse == kSCSIServiceResponse_TASK_COMPLETE,);
1128
1129	if (TaskStatus == kSCSITaskStatus_GOOD)
1130	rc = VINF_SUCCESS;
1131	else if ( TaskStatus == kSCSITaskStatus_CHECK_CONDITION
1132	&& pbSense)
1133	{
1134	memset(pbSense, 0, cbSense); /* lazy */
1135	memcpy(pbSense, &SenseData, RT_MIN(sizeof(SenseData), cbSense));
1136	rc = VERR_UNRESOLVED_ERROR;
1137	}
1138	/** @todo convert sense codes when caller doesn't wish to do this himself. */
1139	/*else if ( TaskStatus == kSCSITaskStatus_CHECK_CONDITION
1140	&& SenseData.ADDITIONAL_SENSE_CODE == 0x3A)
1141	rc = VERR_MEDIA_NOT_PRESENT; */
1142	else
1143	{
1144	rc = enmTxDir == PDMBLOCKTXDIR_NONE
1145	? VERR_DEV_IO_ERROR
1146	: enmTxDir == PDMBLOCKTXDIR_FROM_DEVICE
1147	? VERR_READ_ERROR
1148	: VERR_WRITE_ERROR;
1149	if (pThis->cLogRelErrors++ < 10)
1150	LogRel(("DVD scsi error: cmd={%.*Rhxs} TaskStatus=%#x key=%#x ASC=%#x ASCQ=%#x (%Vrc)\n",
1151	cbCmd, pbCmd, TaskStatus, SenseData.SENSE_KEY, SenseData.ADDITIONAL_SENSE_CODE,
1152	SenseData.ADDITIONAL_SENSE_CODE_QUALIFIER, rc));
1153	}
1154	} while (0);
1155
1156	(*ppScsiTaskI)->Release(ppScsiTaskI);
1157
1158	# endif
1159
1160	return rc;
1161	}
1162	#endif
1163
1164
1165	/**
1166	* Media present.
1167	* Query the size and notify the above driver / device.
1168	*
1169	* @param pThis The instance data.
1170	*/
1171	int DRVHostBaseMediaPresent(PDRVHOSTBASE pThis)
1172	{
1173	/*
1174	* Open the drive.
1175	*/
1176	int rc = drvHostBaseReopen(pThis);
1177	if (VBOX_FAILURE(rc))
1178	return rc;
1179
1180	/*
1181	* Determin the size.
1182	*/
1183	uint64_t cb;
1184	rc = pThis->pfnGetMediaSize(pThis, &cb);
1185	if (VBOX_FAILURE(rc))
1186	{
1187	LogFlow(("%s-%d: failed to figure media size of %s, rc=%Vrc\n",
1188	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->pszDevice, rc));
1189	return rc;
1190	}
1191
1192	/*
1193	* Update the data and inform the unit.
1194	*/
1195	pThis->cbSize = cb;
1196	pThis->fMediaPresent = true;
1197	if (pThis->pDrvMountNotify)
1198	pThis->pDrvMountNotify->pfnMountNotify(pThis->pDrvMountNotify);
1199	LogFlow(("%s-%d: drvHostBaseMediaPresent: cbSize=%lld (%#llx)\n",
1200	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, pThis->cbSize, pThis->cbSize));
1201	return VINF_SUCCESS;
1202	}
1203
1204
1205	/**
1206	* Media no longer present.
1207	* @param pThis The instance data.
1208	*/
1209	void DRVHostBaseMediaNotPresent(PDRVHOSTBASE pThis)
1210	{
1211	pThis->fMediaPresent = false;
1212	pThis->fLocked = false;
1213	pThis->fTranslationSet = false;
1214	pThis->cSectors = 0;
1215	if (pThis->pDrvMountNotify)
1216	pThis->pDrvMountNotify->pfnUnmountNotify(pThis->pDrvMountNotify);
1217	}
1218
1219
1220	#ifdef RT_OS_WINDOWS
1221
1222	/**
1223	* Window procedure for the invisible window used to catch the WM_DEVICECHANGE broadcasts.
1224	*/
1225	static LRESULT CALLBACK DeviceChangeWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
1226	{
1227	Log2(("DeviceChangeWindowProc: hwnd=%08x uMsg=%08x\n", hwnd, uMsg));
1228	if (uMsg == WM_DESTROY)
1229	{
1230	PDRVHOSTBASE pThis = (PDRVHOSTBASE)GetWindowLong(hwnd, GWLP_USERDATA);
1231	if (pThis)
1232	ASMAtomicXchgSize(&pThis->hwndDeviceChange, NULL);
1233	PostQuitMessage(0);
1234	}
1235
1236	if (uMsg != WM_DEVICECHANGE)
1237	return DefWindowProc(hwnd, uMsg, wParam, lParam);
1238
1239	PDEV_BROADCAST_HDR lpdb = (PDEV_BROADCAST_HDR)lParam;
1240	PDRVHOSTBASE pThis = (PDRVHOSTBASE)GetWindowLongPtr(hwnd, GWLP_USERDATA);
1241	Assert(pThis);
1242	if (pThis == NULL)
1243	return 0;
1244
1245	switch (wParam)
1246	{
1247	case DBT_DEVICEARRIVAL:
1248	case DBT_DEVICEREMOVECOMPLETE:
1249	// Check whether a CD or DVD was inserted into or removed from a drive.
1250	if (lpdb->dbch_devicetype == DBT_DEVTYP_VOLUME)
1251	{
1252	PDEV_BROADCAST_VOLUME lpdbv = (PDEV_BROADCAST_VOLUME)lpdb;
1253	if ( (lpdbv->dbcv_flags & DBTF_MEDIA)
1254	&& (pThis->fUnitMask & lpdbv->dbcv_unitmask))
1255	{
1256	RTCritSectEnter(&pThis->CritSect);
1257	if (wParam == DBT_DEVICEARRIVAL)
1258	{
1259	int cRetries = 10;
1260	int rc = DRVHostBaseMediaPresent(pThis);
1261	while (VBOX_FAILURE(rc) && cRetries-- > 0)
1262	{
1263	RTThreadSleep(50);
1264	rc = DRVHostBaseMediaPresent(pThis);
1265	}
1266	}
1267	else
1268	DRVHostBaseMediaNotPresent(pThis);
1269	RTCritSectLeave(&pThis->CritSect);
1270	}
1271	}
1272	break;
1273	}
1274	return TRUE;
1275	}
1276
1277	#endif /* RT_OS_WINDOWS */
1278
1279
1280	/**
1281	* This thread will periodically poll the device for media presence.
1282	*
1283	* @returns Ignored.
1284	* @param ThreadSelf Handle of this thread. Ignored.
1285	* @param pvUser Pointer to the driver instance structure.
1286	*/
1287	static DECLCALLBACK(int) drvHostBaseMediaThread(RTTHREAD ThreadSelf, void *pvUser)
1288	{
1289	PDRVHOSTBASE pThis = (PDRVHOSTBASE)pvUser;
1290	LogFlow(("%s-%d: drvHostBaseMediaThread: ThreadSelf=%p pvUser=%p\n",
1291	pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, ThreadSelf, pvUser));
1292	#ifdef RT_OS_WINDOWS
1293	static WNDCLASS s_classDeviceChange = {0};
1294	static ATOM s_hAtomDeviceChange = 0;
1295
1296	/*
1297	* Register custom window class.
1298	*/
1299	if (s_hAtomDeviceChange == 0)
1300	{
1301	memset(&s_classDeviceChange, 0, sizeof(s_classDeviceChange));
1302	s_classDeviceChange.lpfnWndProc = DeviceChangeWindowProc;
1303	s_classDeviceChange.lpszClassName = "VBOX_DeviceChangeClass";
1304	s_classDeviceChange.hInstance = GetModuleHandle("VBOXDD.DLL");
1305	Assert(s_classDeviceChange.hInstance);
1306	s_hAtomDeviceChange = RegisterClassA(&s_classDeviceChange);
1307	Assert(s_hAtomDeviceChange);
1308	}
1309
1310	/*
1311	* Create Window w/ the pThis as user data.
1312	*/
1313	HWND hwnd = CreateWindow((LPCTSTR)s_hAtomDeviceChange, "", WS_POPUP, 0, 0, 0, 0, 0, 0, s_classDeviceChange.hInstance, 0);
1314	AssertMsg(hwnd, ("CreateWindow failed with %d\n", GetLastError()));
1315	SetWindowLongPtr(hwnd, GWLP_USERDATA, (LONG_PTR)pThis);
1316
1317	/*
1318	* Signal the waiting EMT thread that everything went fine.
1319	*/
1320	ASMAtomicXchgSize(&pThis->hwndDeviceChange, hwnd);
1321	RTThreadUserSignal(ThreadSelf);
1322	if (!hwnd)
1323	{
1324	LogFlow(("%s-%d: drvHostBaseMediaThread: returns VERR_GENERAL_FAILURE\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance));
1325	return VERR_GENERAL_FAILURE;
1326	}
1327	LogFlow(("%s-%d: drvHostBaseMediaThread: Created hwndDeviceChange=%p\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance, hwnd));
1328
1329	/*
1330	* Message pump.
1331	*/
1332	MSG Msg;
1333	BOOL fRet;
1334	while ((fRet = GetMessage(&Msg, NULL, 0, 0)) != FALSE)
1335	{
1336	if (fRet != -1)
1337	{
1338	TranslateMessage(&Msg);
1339	DispatchMessage(&Msg);
1340	}
1341	//else: handle the error and possibly exit
1342	}
1343	Assert(!pThis->hwndDeviceChange);
1344
1345	#else /* !RT_OS_WINDOWS */
1346	bool fFirst = true;
1347	int cRetries = 10;
1348	while (!pThis->fShutdownPoller)
1349	{
1350	/*
1351	* Perform the polling (unless we've run out of 50ms retries).
1352	*/
1353	if ( pThis->pfnPoll
1354	&& cRetries-- > 0)
1355	{
1356
1357	int rc = pThis->pfnPoll(pThis);
1358	if (VBOX_FAILURE(rc))
1359	{
1360	RTSemEventWait(pThis->EventPoller, 50);
1361	continue;
1362	}
1363	}
1364
1365	/*
1366	* Signal EMT after the first go.
1367	*/
1368	if (fFirst)
1369	{
1370	RTThreadUserSignal(ThreadSelf);
1371	fFirst = false;
1372	}
1373
1374	/*
1375	* Sleep.
1376	*/
1377	int rc = RTSemEventWait(pThis->EventPoller, pThis->cMilliesPoller);
1378	if ( VBOX_FAILURE(rc)
1379	&& rc != VERR_TIMEOUT)
1380	{
1381	AssertMsgFailed(("rc=%Vrc\n", rc));
1382	pThis->ThreadPoller = NIL_RTTHREAD;
1383	LogFlow(("drvHostBaseMediaThread: returns %Vrc\n", rc));
1384	return rc;
1385	}
1386	cRetries = 10;
1387	}
1388
1389	#endif /* !RT_OS_WINDOWS */
1390
1391	/* (Don't clear the thread handle here, the destructor thread is using it to wait.) */
1392	LogFlow(("%s-%d: drvHostBaseMediaThread: returns VINF_SUCCESS\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance));
1393	return VINF_SUCCESS;
1394	}
1395
1396	/* -=-=-=-=- driver interface -=-=-=-=- */
1397
1398
1399	/**
1400	* Done state load operation.
1401	*
1402	* @returns VBox load code.
1403	* @param pDrvIns Driver instance of the driver which registered the data unit.
1404	* @param pSSM SSM operation handle.
1405	*/
1406	static DECLCALLBACK(int) drvHostBaseLoadDone(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM)
1407	{
1408	PDRVHOSTBASE pThis = PDMINS2DATA(pDrvIns, PDRVHOSTBASE);
1409	LogFlow(("%s-%d: drvHostBaseMediaThread:\n", pThis->pDrvIns->pDrvReg->szDriverName, pThis->pDrvIns->iInstance));
1410	RTCritSectEnter(&pThis->CritSect);
1411
1412	/*
1413	* Tell the device/driver above us that the media status is uncertain.
1414	*/
1415	if (pThis->pDrvMountNotify)
1416	{
1417	pThis->pDrvMountNotify->pfnUnmountNotify(pThis->pDrvMountNotify);
1418	if (pThis->fMediaPresent)
1419	pThis->pDrvMountNotify->pfnMountNotify(pThis->pDrvMountNotify);
1420	}
1421
1422	RTCritSectLeave(&pThis->CritSect);
1423	return VINF_SUCCESS;
1424	}
1425
1426
1427	/** @copydoc FNPDMDRVDESTRUCT */
1428	DECLCALLBACK(void) DRVHostBaseDestruct(PPDMDRVINS pDrvIns)
1429	{
1430	PDRVHOSTBASE pThis = PDMINS2DATA(pDrvIns, PDRVHOSTBASE);
1431	LogFlow(("%s-%d: drvHostBaseDestruct: iInstance=%d\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, pDrvIns->iInstance));
1432
1433	/*
1434	* Terminate the thread.
1435	*/
1436	if (pThis->ThreadPoller != NIL_RTTHREAD)
1437	{
1438	pThis->fShutdownPoller = true;
1439	int rc;
1440	int cTimes = 50;
1441	do
1442	{
1443	#ifdef RT_OS_WINDOWS
1444	if (pThis->hwndDeviceChange)
1445	PostMessage(pThis->hwndDeviceChange, WM_CLOSE, 0, 0); /* default win proc will destroy the window */
1446	#else
1447	RTSemEventSignal(pThis->EventPoller);
1448	#endif
1449	rc = RTThreadWait(pThis->ThreadPoller, 100, NULL);
1450	} while (cTimes-- > 0 && rc == VERR_TIMEOUT);
1451
1452	if (!rc)
1453	pThis->ThreadPoller = NIL_RTTHREAD;
1454	}
1455
1456	/*
1457	* Unlock the drive if we've locked it or we're in passthru mode.
1458	*/
1459	#ifdef RT_OS_DARWIN
1460	if ( ( pThis->fLocked
1461	\|\| pThis->IBlock.pfnSendCmd)
1462	&& pThis->ppScsiTaskDI
1463	#else /** @todo Check if the other guys can mix pfnDoLock with scsi passthru.
1464	* (We're currently not unlocking the device after use. See todo in DevATA.cpp.) */
1465	if ( pThis->fLocked
1466	&& pThis->FileDevice != NIL_RTFILE
1467	#endif
1468	&& pThis->pfnDoLock)
1469	{
1470	int rc = pThis->pfnDoLock(pThis, false);
1471	if (VBOX_SUCCESS(rc))
1472	pThis->fLocked = false;
1473	}
1474
1475	/*
1476	* Cleanup the other resources.
1477	*/
1478	#ifdef RT_OS_WINDOWS
1479	if (pThis->hwndDeviceChange)
1480	{
1481	if (SetWindowLongPtr(pThis->hwndDeviceChange, GWLP_USERDATA, 0) == (LONG_PTR)pThis)
1482	PostMessage(pThis->hwndDeviceChange, WM_CLOSE, 0, 0); /* default win proc will destroy the window */
1483	pThis->hwndDeviceChange = NULL;
1484	}
1485	#else
1486	if (pThis->EventPoller != NULL)
1487	{
1488	RTSemEventDestroy(pThis->EventPoller);
1489	pThis->EventPoller = NULL;
1490	}
1491	#endif
1492
1493	#ifdef RT_OS_DARWIN
1494	/*
1495	* The unclaiming doesn't seem to mean much, the DVD is actaully
1496	* remounted when we release exclusive access. I'm not quite sure
1497	* if I should put the unclaim first or not...
1498	*
1499	* Anyway, that it's automatically remounted very good news for us,
1500	* because that means we don't have to mess with that ourselves. Of
1501	* course there is the unlikely scenario that we've succeeded in claiming
1502	* and umount the DVD but somehow failed to gain exclusive scsi access...
1503	*/
1504	if (pThis->ppScsiTaskDI)
1505	{
1506	LogFlow(("%s-%d: releasing exclusive scsi access!\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
1507	(*pThis->ppScsiTaskDI)->ReleaseExclusiveAccess(pThis->ppScsiTaskDI);
1508	(*pThis->ppScsiTaskDI)->Release(pThis->ppScsiTaskDI);
1509	pThis->ppScsiTaskDI = NULL;
1510	}
1511	if (pThis->pDADisk)
1512	{
1513	LogFlow(("%s-%d: unclaiming the disk!\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
1514	DADiskUnclaim(pThis->pDADisk);
1515	CFRelease(pThis->pDADisk);
1516	pThis->pDADisk = NULL;
1517	}
1518	if (pThis->ppMMCDI)
1519	{
1520	LogFlow(("%s-%d: releasing the MMC object!\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
1521	(*pThis->ppMMCDI)->Release(pThis->ppMMCDI);
1522	pThis->ppMMCDI = NULL;
1523	}
1524	if (pThis->MasterPort)
1525	{
1526	mach_port_deallocate(mach_task_self(), pThis->MasterPort);
1527	pThis->MasterPort = NULL;
1528	}
1529	if (pThis->pDASession)
1530	{
1531	LogFlow(("%s-%d: releasing the DA session!\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
1532	CFRelease(pThis->pDASession);
1533	pThis->pDASession = NULL;
1534	}
1535	#else
1536	if (pThis->FileDevice != NIL_RTFILE)
1537	{
1538	int rc = RTFileClose(pThis->FileDevice);
1539	AssertRC(rc);
1540	pThis->FileDevice = NIL_RTFILE;
1541	}
1542	#endif
1543
1544	if (pThis->pszDevice)
1545	{
1546	MMR3HeapFree(pThis->pszDevice);
1547	pThis->pszDevice = NULL;
1548	}
1549
1550	if (pThis->pszDeviceOpen)
1551	{
1552	RTStrFree(pThis->pszDeviceOpen);
1553	pThis->pszDeviceOpen = NULL;
1554	}
1555
1556	/* Forget about the notifications. */
1557	pThis->pDrvMountNotify = NULL;
1558
1559	/* Leave the instance operational if this is just a cleanup of the state
1560	* after an attach error happened. So don't destry the critsect then. */
1561	if (!pThis->fKeepInstance && RTCritSectIsInitialized(&pThis->CritSect))
1562	RTCritSectDelete(&pThis->CritSect);
1563	LogFlow(("%s-%d: drvHostBaseDestruct completed\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance));
1564	}
1565
1566
1567	/**
1568	* Initializes the instance data (init part 1).
1569	*
1570	* The driver which derives from this base driver will override function pointers after
1571	* calling this method, and complete the construction by calling DRVHostBaseInitFinish().
1572	*
1573	* On failure call DRVHostBaseDestruct().
1574	*
1575	* @returns VBox status code.
1576	* @param pDrvIns Driver instance.
1577	* @param pCfgHandle Configuration handle.
1578	* @param enmType Device type.
1579	*/
1580	int DRVHostBaseInitData(PPDMDRVINS pDrvIns, PCFGMNODE pCfgHandle, PDMBLOCKTYPE enmType)
1581	{
1582	PDRVHOSTBASE pThis = PDMINS2DATA(pDrvIns, PDRVHOSTBASE);
1583	LogFlow(("%s-%d: DRVHostBaseInitData: iInstance=%d\n", pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, pDrvIns->iInstance));
1584
1585	/*
1586	* Initialize most of the data members.
1587	*/
1588	pThis->pDrvIns = pDrvIns;
1589	pThis->fKeepInstance = false;
1590	pThis->ThreadPoller = NIL_RTTHREAD;
1591	#ifdef RT_OS_DARWIN
1592	pThis->MasterPort = NULL;
1593	pThis->ppMMCDI = NULL;
1594	pThis->ppScsiTaskDI = NULL;
1595	pThis->cbBlock = 0;
1596	pThis->pDADisk = NULL;
1597	pThis->pDASession = NULL;
1598	#else
1599	pThis->FileDevice = NIL_RTFILE;
1600	#endif
1601	pThis->enmType = enmType;
1602	//pThis->cErrors = 0;
1603
1604	pThis->pfnGetMediaSize = drvHostBaseGetMediaSize;
1605
1606	/* IBase. */
1607	pDrvIns->IBase.pfnQueryInterface = drvHostBaseQueryInterface;
1608
1609	/* IBlock. */
1610	pThis->IBlock.pfnRead = drvHostBaseRead;
1611	pThis->IBlock.pfnWrite = drvHostBaseWrite;
1612	pThis->IBlock.pfnFlush = drvHostBaseFlush;
1613	pThis->IBlock.pfnIsReadOnly = drvHostBaseIsReadOnly;
1614	pThis->IBlock.pfnGetSize = drvHostBaseGetSize;
1615	pThis->IBlock.pfnGetType = drvHostBaseGetType;
1616	pThis->IBlock.pfnGetUuid = drvHostBaseGetUuid;
1617
1618	/* IBlockBios. */
1619	pThis->IBlockBios.pfnGetGeometry = drvHostBaseGetGeometry;
1620	pThis->IBlockBios.pfnSetGeometry = drvHostBaseSetGeometry;
1621	pThis->IBlockBios.pfnGetTranslation = drvHostBaseGetTranslation;
1622	pThis->IBlockBios.pfnSetTranslation = drvHostBaseSetTranslation;
1623	pThis->IBlockBios.pfnIsVisible = drvHostBaseIsVisible;
1624	pThis->IBlockBios.pfnGetType = drvHostBaseBiosGetType;
1625
1626	/* IMount. */
1627	pThis->IMount.pfnMount = drvHostBaseMount;
1628	pThis->IMount.pfnUnmount = drvHostBaseUnmount;
1629	pThis->IMount.pfnIsMounted = drvHostBaseIsMounted;
1630	pThis->IMount.pfnLock = drvHostBaseLock;
1631	pThis->IMount.pfnUnlock = drvHostBaseUnlock;
1632	pThis->IMount.pfnIsLocked = drvHostBaseIsLocked;
1633
1634	/*
1635	* Get the IBlockPort & IMountNotify interfaces of the above driver/device.
1636	*/
1637	pThis->pDrvBlockPort = (PPDMIBLOCKPORT)pDrvIns->pUpBase->pfnQueryInterface(pDrvIns->pUpBase, PDMINTERFACE_BLOCK_PORT);
1638	if (!pThis->pDrvBlockPort)
1639	{
1640	AssertMsgFailed(("Configuration error: No block port interface above!\n"));
1641	return VERR_PDM_MISSING_INTERFACE_ABOVE;
1642	}
1643	pThis->pDrvMountNotify = (PPDMIMOUNTNOTIFY)pDrvIns->pUpBase->pfnQueryInterface(pDrvIns->pUpBase, PDMINTERFACE_MOUNT_NOTIFY);
1644
1645	/*
1646	* Query configuration.
1647	*/
1648	/* Device */
1649	int rc = CFGMR3QueryStringAlloc(pCfgHandle, "Path", &pThis->pszDevice);
1650	if (VBOX_FAILURE(rc))
1651	{
1652	AssertMsgFailed(("Configuration error: query for \"Path\" string returned %Vra.\n", rc));
1653	return rc;
1654	}
1655
1656	/* Mountable */
1657	uint32_t u32;
1658	rc = CFGMR3QueryU32(pCfgHandle, "Interval", &u32);
1659	if (VBOX_SUCCESS(rc))
1660	pThis->cMilliesPoller = u32;
1661	else if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1662	pThis->cMilliesPoller = 1000;
1663	else if (VBOX_FAILURE(rc))
1664	{
1665	AssertMsgFailed(("Configuration error: Query \"Mountable\" resulted in %Vrc.\n", rc));
1666	return rc;
1667	}
1668
1669	/* ReadOnly */
1670	rc = CFGMR3QueryBool(pCfgHandle, "ReadOnly", &pThis->fReadOnlyConfig);
1671	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1672	pThis->fReadOnlyConfig = enmType == PDMBLOCKTYPE_DVD \|\| enmType == PDMBLOCKTYPE_CDROM ? true : false;
1673	else if (VBOX_FAILURE(rc))
1674	{
1675	AssertMsgFailed(("Configuration error: Query \"ReadOnly\" resulted in %Vrc.\n", rc));
1676	return rc;
1677	}
1678
1679	/* Locked */
1680	rc = CFGMR3QueryBool(pCfgHandle, "Locked", &pThis->fLocked);
1681	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1682	pThis->fLocked = false;
1683	else if (VBOX_FAILURE(rc))
1684	{
1685	AssertMsgFailed(("Configuration error: Query \"Locked\" resulted in %Vrc.\n", rc));
1686	return rc;
1687	}
1688
1689	/* BIOS visible */
1690	rc = CFGMR3QueryBool(pCfgHandle, "BIOSVisible", &pThis->fBiosVisible);
1691	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1692	pThis->fBiosVisible = true;
1693	else if (VBOX_FAILURE(rc))
1694	{
1695	AssertMsgFailed(("Configuration error: Query \"BIOSVisible\" resulted in %Vrc.\n", rc));
1696	return rc;
1697	}
1698
1699	/* Uuid */
1700	char *psz;
1701	rc = CFGMR3QueryStringAlloc(pCfgHandle, "Uuid", &psz);
1702	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1703	RTUuidClear(&pThis->Uuid);
1704	else if (VBOX_SUCCESS(rc))
1705	{
1706	rc = RTUuidFromStr(&pThis->Uuid, psz);
1707	if (VBOX_FAILURE(rc))
1708	{
1709	AssertMsgFailed(("Configuration error: Uuid from string failed on \"%s\", rc=%Vrc.\n", psz, rc));
1710	MMR3HeapFree(psz);
1711	return rc;
1712	}
1713	MMR3HeapFree(psz);
1714	}
1715	else
1716	{
1717	AssertMsgFailed(("Configuration error: Failed to obtain the uuid, rc=%Vrc.\n", rc));
1718	return rc;
1719	}
1720
1721	/* Define whether attach failure is an error (default) or not. */
1722	bool fAttachFailError;
1723	rc = CFGMR3QueryBool(pCfgHandle, "AttachFailError", &fAttachFailError);
1724	if (VBOX_FAILURE(rc))
1725	fAttachFailError = true;
1726	pThis->fAttachFailError = fAttachFailError;
1727
1728	/* name to open & watch for */
1729	#ifdef RT_OS_WINDOWS
1730	int iBit = toupper(pThis->pszDevice[0]) - 'A';
1731	if ( iBit > 'Z' - 'A'
1732	\|\| pThis->pszDevice[1] != ':'
1733	\|\| pThis->pszDevice[2])
1734	{
1735	AssertMsgFailed(("Configuration error: Invalid drive specification: '%s'\n", pThis->pszDevice));
1736	return VERR_INVALID_PARAMETER;
1737	}
1738	pThis->fUnitMask = 1 << iBit;
1739	RTStrAPrintf(&pThis->pszDeviceOpen, "\\\\.\\%s", pThis->pszDevice);
1740	#else
1741	pThis->pszDeviceOpen = RTStrDup(pThis->pszDevice);
1742	#endif
1743	if (!pThis->pszDeviceOpen)
1744	return VERR_NO_MEMORY;
1745
1746	return VINF_SUCCESS;
1747	}
1748
1749
1750	/**
1751	* Do the 2nd part of the init after the derived driver has overridden the defaults.
1752	*
1753	* On failure call DRVHostBaseDestruct().
1754	*
1755	* @returns VBox status code.
1756	* @param pThis Pointer to the instance data.
1757	*/
1758	int DRVHostBaseInitFinish(PDRVHOSTBASE pThis)
1759	{
1760	int src = VINF_SUCCESS;
1761	PPDMDRVINS pDrvIns = pThis->pDrvIns;
1762
1763	/* log config summary */
1764	Log(("%s-%d: pszDevice='%s' (%s) cMilliesPoller=%d fReadOnlyConfig=%d fLocked=%d fBIOSVisible=%d Uuid=%Vuuid\n",
1765	pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, pThis->pszDevice, pThis->pszDeviceOpen, pThis->cMilliesPoller,
1766	pThis->fReadOnlyConfig, pThis->fLocked, pThis->fBiosVisible, &pThis->Uuid));
1767
1768	/*
1769	* Check that there are no drivers below us.
1770	*/
1771	PPDMIBASE pBase;
1772	int rc = pDrvIns->pDrvHlp->pfnAttach(pDrvIns, &pBase);
1773	if (rc != VERR_PDM_NO_ATTACHED_DRIVER)
1774	{
1775	AssertMsgFailed(("Configuration error: No attached driver, please! (rc=%Vrc)\n", rc));
1776	return VERR_PDM_DRVINS_NO_ATTACH;
1777	}
1778
1779	/*
1780	* Register saved state.
1781	*/
1782	rc = pDrvIns->pDrvHlp->pfnSSMRegister(pDrvIns, pDrvIns->pDrvReg->szDriverName, pDrvIns->iInstance, 1, 0,
1783	NULL, NULL, NULL,
1784	NULL, NULL, drvHostBaseLoadDone);
1785	if (VBOX_FAILURE(rc))
1786	return rc;
1787
1788	/*
1789	* Verify type.
1790	*/
1791	#ifdef RT_OS_WINDOWS
1792	UINT uDriveType = GetDriveType(pThis->pszDevice);
1793	switch (pThis->enmType)
1794	{
1795	case PDMBLOCKTYPE_FLOPPY_360:
1796	case PDMBLOCKTYPE_FLOPPY_720:
1797	case PDMBLOCKTYPE_FLOPPY_1_20:
1798	case PDMBLOCKTYPE_FLOPPY_1_44:
1799	case PDMBLOCKTYPE_FLOPPY_2_88:
1800	if (uDriveType != DRIVE_REMOVABLE)
1801	{
1802	AssertMsgFailed(("Configuration error: '%s' is not a floppy (type=%d)\n",
1803	pThis->pszDevice, uDriveType));
1804	return VERR_INVALID_PARAMETER;
1805	}
1806	break;
1807	case PDMBLOCKTYPE_CDROM:
1808	case PDMBLOCKTYPE_DVD:
1809	if (uDriveType != DRIVE_CDROM)
1810	{
1811	AssertMsgFailed(("Configuration error: '%s' is not a cdrom (type=%d)\n",
1812	pThis->pszDevice, uDriveType));
1813	return VERR_INVALID_PARAMETER;
1814	}
1815	break;
1816	case PDMBLOCKTYPE_HARD_DISK:
1817	default:
1818	AssertMsgFailed(("enmType=%d\n", pThis->enmType));
1819	return VERR_INVALID_PARAMETER;
1820	}
1821	#endif
1822
1823	/*
1824	* Open the device.
1825	*/
1826	#ifdef RT_OS_DARWIN
1827	rc = drvHostBaseOpen(pThis, NULL, pThis->fReadOnlyConfig);
1828	#else
1829	rc = drvHostBaseReopen(pThis);
1830	#endif
1831	if (VBOX_FAILURE(rc))
1832	{
1833	char *pszDevice = pThis->pszDevice;
1834	#ifndef RT_OS_DARWIN
1835	char szPathReal[256];
1836	if ( RTPathExists(pszDevice)
1837	&& RT_SUCCESS(RTPathReal(pszDevice, szPathReal, sizeof(szPathReal))))
1838	pszDevice = szPathReal;
1839	pThis->FileDevice = NIL_RTFILE;
1840	#endif
1841	/* Disable CD/DVD passthrough in case it was enabled. Would cause
1842	* weird failures later when the guest issues commands. These would
1843	* all fail because of the invalid file handle. So use the normal
1844	* virtual CD/DVD code, which deals more gracefully with unavailable
1845	* "media" - actually a complete drive in this case. */
1846	pThis->IBlock.pfnSendCmd = NULL;
1847	AssertMsgFailed(("Could not open host device %s, rc=%Vrc\n", pszDevice, rc));
1848	switch (rc)
1849	{
1850	case VERR_ACCESS_DENIED:
1851	return PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS,
1852	#ifdef RT_OS_LINUX
1853	N_("Cannot open host device '%s' for %s access. Check the permissions "
1854	"of that device ('/bin/ls -l %s'): Most probably you need to be member "
1855	"of the device group. Make sure that you logout/login after changing "
1856	"the group settings of the current user"),
1857	#else
1858	N_("Cannot open host device '%s' for %s access. Check the permissions "
1859	"of that device"),
1860	#endif
1861	pszDevice, pThis->fReadOnlyConfig ? "readonly" : "read/write",
1862	pszDevice);
1863	default:
1864	{
1865	if (pThis->fAttachFailError)
1866	return rc;
1867	int erc = PDMDrvHlpVMSetRuntimeError(pDrvIns,
1868	false, "DrvHost_MOUNTFAIL",
1869	N_("Cannot attach to host device '%s'"), pszDevice);
1870	AssertRC(erc);
1871	src = rc;
1872	}
1873	}
1874	}
1875	#ifdef RT_OS_WINDOWS
1876	if (VBOX_SUCCESS(src))
1877	DRVHostBaseMediaPresent(pThis);
1878	#endif
1879
1880	/*
1881	* Lock the drive if that's required by the configuration.
1882	*/
1883	if (pThis->fLocked)
1884	{
1885	if (pThis->pfnDoLock)
1886	rc = pThis->pfnDoLock(pThis, true);
1887	if (VBOX_FAILURE(rc))
1888	{
1889	AssertMsgFailed(("Failed to lock the dvd drive. rc=%Vrc\n", rc));
1890	return rc;
1891	}
1892	}
1893
1894	#ifndef RT_OS_WINDOWS
1895	if (VBOX_SUCCESS(src))
1896	{
1897	/*
1898	* Create the event semaphore which the poller thread will wait on.
1899	*/
1900	rc = RTSemEventCreate(&pThis->EventPoller);
1901	if (VBOX_FAILURE(rc))
1902	return rc;
1903	}
1904	#endif
1905
1906	/*
1907	* Initialize the critical section used for serializing the access to the media.
1908	*/
1909	rc = RTCritSectInit(&pThis->CritSect);
1910	if (VBOX_FAILURE(rc))
1911	return rc;
1912
1913	if (VBOX_SUCCESS(src))
1914	{
1915	/*
1916	* Start the thread which will poll for the media.
1917	*/
1918	rc = RTThreadCreate(&pThis->ThreadPoller, drvHostBaseMediaThread, pThis, 0,
1919	RTTHREADTYPE_INFREQUENT_POLLER, RTTHREADFLAGS_WAITABLE, "DVDMEDIA");
1920	if (VBOX_FAILURE(rc))
1921	{
1922	AssertMsgFailed(("Failed to create poller thread. rc=%Vrc\n", rc));
1923	return rc;
1924	}
1925
1926	/*
1927	* Wait for the thread to start up (!w32:) and do one detection loop.
1928	*/
1929	rc = RTThreadUserWait(pThis->ThreadPoller, 10000);
1930	AssertRC(rc);
1931	#ifdef RT_OS_WINDOWS
1932	if (!pThis->hwndDeviceChange)
1933	return VERR_GENERAL_FAILURE;
1934	#endif
1935	}
1936
1937	if (VBOX_FAILURE(src))
1938	return src;
1939	return rc;
1940	}
1941

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source: vbox/trunk/src/VBox/Devices/Storage/DrvHostBase.cpp@ 4849

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