Parallels.cpp@ 52442

Last change on this file since 52442 was 50988, checked in by vboxsync, 11 years ago
Storage/VD: Cleanup VD plugin handling. One shared object can now support an arbitrary number of image backends instead of just one like before
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File size: 40.1 KB

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1	/* $Id: Parallels.cpp 50988 2014-04-07 19:36:54Z vboxsync $ */
2	/** @file
3	*
4	* Parallels hdd disk image, core code.
5	*/
6
7	/*
8	* Copyright (C) 2006-2013 Oracle Corporation
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 (GPL) as published by the Free Software
14	* Foundation, in version 2 as it comes in the "COPYING" file of the
15	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
16	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
17	*/
18
19	#define LOG_GROUP LOG_GROUP_VD_PARALLELS
20	#include <VBox/vd-plugin.h>
21	#include <VBox/err.h>
22
23	#include <VBox/log.h>
24	#include <iprt/assert.h>
25	#include <iprt/mem.h>
26	#include <iprt/uuid.h>
27	#include <iprt/path.h>
28	#include <iprt/string.h>
29	#include <iprt/asm.h>
30
31	#include "VDBackends.h"
32
33	#define PARALLELS_HEADER_MAGIC "WithoutFreeSpace"
34	#define PARALLELS_DISK_VERSION 2
35
36	/** The header of the parallels disk. */
37	#pragma pack(1)
38	typedef struct ParallelsHeader
39	{
40	/** The magic header to identify a parallels hdd image. */
41	char HeaderIdentifier[16];
42	/** The version of the disk image. */
43	uint32_t uVersion;
44	/** The number of heads the hdd has. */
45	uint32_t cHeads;
46	/** Number of cylinders. */
47	uint32_t cCylinders;
48	/** Number of sectors per track. */
49	uint32_t cSectorsPerTrack;
50	/** Number of entries in the allocation bitmap. */
51	uint32_t cEntriesInAllocationBitmap;
52	/** Total number of sectors. */
53	uint32_t cSectors;
54	/** Padding. */
55	char Padding[24];
56	} ParallelsHeader;
57	#pragma pack()
58
59	/**
60	* Parallels image structure.
61	*/
62	typedef struct PARALLELSIMAGE
63	{
64	/** Image file name. */
65	const char *pszFilename;
66	/** Opaque storage handle. */
67	PVDIOSTORAGE pStorage;
68
69	/** Pointer to the per-disk VD interface list. */
70	PVDINTERFACE pVDIfsDisk;
71	/** Pointer to the per-image VD interface list. */
72	PVDINTERFACE pVDIfsImage;
73	/** Error interface. */
74	PVDINTERFACEERROR pIfError;
75	/** I/O interface. */
76	PVDINTERFACEIOINT pIfIo;
77
78	/** Open flags passed by VBoxHDD layer. */
79	unsigned uOpenFlags;
80	/** Image flags defined during creation or determined during open. */
81	unsigned uImageFlags;
82	/** Total size of the image. */
83	uint64_t cbSize;
84
85	/** Physical geometry of this image. */
86	VDGEOMETRY PCHSGeometry;
87	/** Logical geometry of this image. */
88	VDGEOMETRY LCHSGeometry;
89
90	/** Pointer to the allocation bitmap. */
91	uint32_t *pAllocationBitmap;
92	/** Entries in the allocation bitmap. */
93	uint64_t cAllocationBitmapEntries;
94	/** Flag whether the allocation bitmap was changed. */
95	bool fAllocationBitmapChanged;
96	/** Current file size. */
97	uint64_t cbFileCurrent;
98	} PARALLELSIMAGE, *PPARALLELSIMAGE;
99
100	/*******************************************************************************
101	* Static Variables *
102	*******************************************************************************/
103
104	/** NULL-terminated array of supported file extensions. */
105	static const VDFILEEXTENSION s_aParallelsFileExtensions[] =
106	{
107	{"hdd", VDTYPE_HDD},
108	{NULL, VDTYPE_INVALID}
109	};
110
111	/***************************************************
112	* Internal functions *
113	**************************************************/
114
115	/**
116	* Internal. Flush image data to disk.
117	*/
118	static int parallelsFlushImage(PPARALLELSIMAGE pImage)
119	{
120	int rc = VINF_SUCCESS;
121
122	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
123	return VINF_SUCCESS;
124
125	if ( !(pImage->uImageFlags & VD_IMAGE_FLAGS_FIXED)
126	&& (pImage->fAllocationBitmapChanged))
127	{
128	pImage->fAllocationBitmapChanged = false;
129	/* Write the allocation bitmap to the file. */
130	rc = vdIfIoIntFileWriteSync(pImage->pIfIo, pImage->pStorage,
131	sizeof(ParallelsHeader), pImage->pAllocationBitmap,
132	pImage->cAllocationBitmapEntries * sizeof(uint32_t));
133	if (RT_FAILURE(rc))
134	return rc;
135	}
136
137	/* Flush file. */
138	rc = vdIfIoIntFileFlushSync(pImage->pIfIo, pImage->pStorage);
139
140	LogFlowFunc(("returns %Rrc\n", rc));
141	return rc;
142	}
143
144	/**
145	* Internal. Free all allocated space for representing an image except pImage,
146	* and optionally delete the image from disk.
147	*/
148	static int parallelsFreeImage(PPARALLELSIMAGE pImage, bool fDelete)
149	{
150	int rc = VINF_SUCCESS;
151
152	/* Freeing a never allocated image (e.g. because the open failed) is
153	* not signalled as an error. After all nothing bad happens. */
154	if (pImage)
155	{
156	if (pImage->pStorage)
157	{
158	/* No point updating the file that is deleted anyway. */
159	if (!fDelete)
160	parallelsFlushImage(pImage);
161
162	rc = vdIfIoIntFileClose(pImage->pIfIo, pImage->pStorage);
163	pImage->pStorage = NULL;
164	}
165
166	if (pImage->pAllocationBitmap)
167	{
168	RTMemFree(pImage->pAllocationBitmap);
169	pImage->pAllocationBitmap = NULL;
170	}
171
172	if (fDelete && pImage->pszFilename)
173	vdIfIoIntFileDelete(pImage->pIfIo, pImage->pszFilename);
174	}
175
176	return rc;
177	}
178
179	static int parallelsOpenImage(PPARALLELSIMAGE pImage, unsigned uOpenFlags)
180	{
181	int rc = VINF_SUCCESS;
182	ParallelsHeader parallelsHeader;
183
184	pImage->pIfError = VDIfErrorGet(pImage->pVDIfsDisk);
185	pImage->pIfIo = VDIfIoIntGet(pImage->pVDIfsImage);
186	pImage->uOpenFlags = uOpenFlags;
187	AssertPtrReturn(pImage->pIfIo, VERR_INVALID_PARAMETER);
188
189	rc = vdIfIoIntFileOpen(pImage->pIfIo, pImage->pszFilename,
190	VDOpenFlagsToFileOpenFlags(uOpenFlags,
191	false /* fCreate */),
192	&pImage->pStorage);
193	if (RT_FAILURE(rc))
194	goto out;
195
196	rc = vdIfIoIntFileGetSize(pImage->pIfIo, pImage->pStorage, &pImage->cbFileCurrent);
197	if (RT_FAILURE(rc))
198	goto out;
199	AssertMsg(pImage->cbFileCurrent % 512 == 0, ("File size is not a multiple of 512\n"));
200
201	rc = vdIfIoIntFileReadSync(pImage->pIfIo, pImage->pStorage, 0,
202	&parallelsHeader, sizeof(parallelsHeader));
203	if (RT_FAILURE(rc))
204	goto out;
205
206	if (memcmp(parallelsHeader.HeaderIdentifier, PARALLELS_HEADER_MAGIC, 16))
207	{
208	/* Check if the file has hdd as extension. It is a fixed size raw image then. */
209	char *pszSuffix = RTPathSuffix(pImage->pszFilename);
210	if (strcmp(pszSuffix, ".hdd"))
211	{
212	rc = VERR_VD_PARALLELS_INVALID_HEADER;
213	goto out;
214	}
215
216	/* This is a fixed size image. */
217	pImage->uImageFlags \|= VD_IMAGE_FLAGS_FIXED;
218	pImage->cbSize = pImage->cbFileCurrent;
219
220	pImage->PCHSGeometry.cHeads = 16;
221	pImage->PCHSGeometry.cSectors = 63;
222	uint64_t cCylinders = pImage->cbSize / (512 * pImage->PCHSGeometry.cSectors * pImage->PCHSGeometry.cHeads);
223	pImage->PCHSGeometry.cCylinders = (uint32_t)cCylinders;
224	}
225	else
226	{
227	if (parallelsHeader.uVersion != PARALLELS_DISK_VERSION)
228	{
229	rc = VERR_NOT_SUPPORTED;
230	goto out;
231	}
232
233	if (parallelsHeader.cEntriesInAllocationBitmap > (1 << 30))
234	{
235	rc = VERR_NOT_SUPPORTED;
236	goto out;
237	}
238
239	Log(("cSectors=%u\n", parallelsHeader.cSectors));
240	pImage->cbSize = ((uint64_t)parallelsHeader.cSectors) * 512;
241	pImage->uImageFlags = VD_IMAGE_FLAGS_NONE;
242	pImage->cAllocationBitmapEntries = parallelsHeader.cEntriesInAllocationBitmap;
243	pImage->pAllocationBitmap = (uint32_t )RTMemAllocZ((uint32_t)pImage->cAllocationBitmapEntries sizeof(uint32_t));
244	if (!pImage->pAllocationBitmap)
245	{
246	rc = VERR_NO_MEMORY;
247	goto out;
248	}
249
250	rc = vdIfIoIntFileReadSync(pImage->pIfIo, pImage->pStorage,
251	sizeof(ParallelsHeader), pImage->pAllocationBitmap,
252	pImage->cAllocationBitmapEntries * sizeof(uint32_t));
253	if (RT_FAILURE(rc))
254	goto out;
255
256	pImage->PCHSGeometry.cCylinders = parallelsHeader.cCylinders;
257	pImage->PCHSGeometry.cHeads = parallelsHeader.cHeads;
258	pImage->PCHSGeometry.cSectors = parallelsHeader.cSectorsPerTrack;
259	}
260
261	out:
262	LogFlowFunc(("returns %Rrc\n", rc));
263	return rc;
264	}
265
266	/**
267	* Internal: Create a parallels image.
268	*/
269	static int parallelsCreateImage(PPARALLELSIMAGE pImage, uint64_t cbSize,
270	unsigned uImageFlags, const char *pszComment,
271	PCVDGEOMETRY pPCHSGeometry,
272	PCVDGEOMETRY pLCHSGeometry, unsigned uOpenFlags,
273	PFNVDPROGRESS pfnProgress, void *pvUser,
274	unsigned uPercentStart, unsigned uPercentSpan)
275	{
276	int rc = VINF_SUCCESS;
277	int32_t fOpen;
278
279	if (uImageFlags & VD_IMAGE_FLAGS_FIXED)
280	{
281	rc = vdIfError(pImage->pIfError, VERR_VD_INVALID_TYPE, RT_SRC_POS, N_("Parallels: cannot create fixed image '%s'. Create a raw image"), pImage->pszFilename);
282	goto out;
283	}
284
285	pImage->uOpenFlags = uOpenFlags & ~VD_OPEN_FLAGS_READONLY;
286	pImage->uImageFlags = uImageFlags;
287	pImage->PCHSGeometry = *pPCHSGeometry;
288	pImage->LCHSGeometry = *pLCHSGeometry;
289
290	if (!pImage->PCHSGeometry.cCylinders)
291	{
292	/* Set defaults. */
293	pImage->PCHSGeometry.cSectors = 63;
294	pImage->PCHSGeometry.cHeads = 16;
295	pImage->PCHSGeometry.cCylinders = pImage->cbSize / (512 * pImage->PCHSGeometry.cSectors * pImage->PCHSGeometry.cHeads);
296	}
297
298	pImage->pIfError = VDIfErrorGet(pImage->pVDIfsDisk);
299	pImage->pIfIo = VDIfIoIntGet(pImage->pVDIfsImage);
300	AssertPtrReturn(pImage->pIfIo, VERR_INVALID_PARAMETER);
301
302	/* Create image file. */
303	fOpen = VDOpenFlagsToFileOpenFlags(pImage->uOpenFlags, true /* fCreate */);
304	rc = vdIfIoIntFileOpen(pImage->pIfIo, pImage->pszFilename, fOpen, &pImage->pStorage);
305	if (RT_FAILURE(rc))
306	{
307	rc = vdIfError(pImage->pIfError, rc, RT_SRC_POS, N_("Parallels: cannot create image '%s'"), pImage->pszFilename);
308	goto out;
309	}
310
311	if (RT_SUCCESS(rc) && pfnProgress)
312	pfnProgress(pvUser, uPercentStart + uPercentSpan * 98 / 100);
313
314	/* Setup image state. */
315	pImage->cbSize = cbSize;
316	pImage->cAllocationBitmapEntries = cbSize / 512 / pImage->PCHSGeometry.cSectors;
317	if (pImage->cAllocationBitmapEntries * pImage->PCHSGeometry.cSectors * 512 < cbSize)
318	pImage->cAllocationBitmapEntries++;
319	pImage->fAllocationBitmapChanged = true;
320	pImage->cbFileCurrent = sizeof(ParallelsHeader) + pImage->cAllocationBitmapEntries * sizeof(uint32_t);
321	/* Round to next sector boundary. */
322	pImage->cbFileCurrent += 512 - pImage->cbFileCurrent % 512;
323	Assert(!(pImage->cbFileCurrent % 512));
324	pImage->pAllocationBitmap = (uint32_t )RTMemAllocZ(pImage->cAllocationBitmapEntries sizeof(uint32_t));
325	if (!pImage->pAllocationBitmap)
326	rc = VERR_NO_MEMORY;
327
328	if (RT_SUCCESS(rc))
329	{
330	ParallelsHeader Header;
331
332	memcpy(Header.HeaderIdentifier, PARALLELS_HEADER_MAGIC, sizeof(Header.HeaderIdentifier));
333	Header.uVersion = RT_H2LE_U32(PARALLELS_DISK_VERSION);
334	Header.cHeads = RT_H2LE_U32(pImage->PCHSGeometry.cHeads);
335	Header.cCylinders = RT_H2LE_U32(pImage->PCHSGeometry.cCylinders);
336	Header.cSectorsPerTrack = RT_H2LE_U32(pImage->PCHSGeometry.cSectors);
337	Header.cEntriesInAllocationBitmap = RT_H2LE_U32(pImage->cAllocationBitmapEntries);
338	Header.cSectors = RT_H2LE_U32(pImage->cbSize / 512);
339	memset(Header.Padding, 0, sizeof(Header.Padding));
340
341	/* Write header and allocation bitmap. */
342	rc = vdIfIoIntFileSetSize(pImage->pIfIo, pImage->pStorage, pImage->cbFileCurrent);
343	if (RT_SUCCESS(rc))
344	rc = vdIfIoIntFileWriteSync(pImage->pIfIo, pImage->pStorage, 0,
345	&Header, sizeof(Header));
346	if (RT_SUCCESS(rc))
347	rc = parallelsFlushImage(pImage); /* Writes the allocation bitmap. */
348	}
349
350	out:
351	if (RT_SUCCESS(rc) && pfnProgress)
352	pfnProgress(pvUser, uPercentStart + uPercentSpan);
353
354	if (RT_FAILURE(rc))
355	parallelsFreeImage(pImage, rc != VERR_ALREADY_EXISTS);
356	return rc;
357	}
358
359	/** @copydoc VBOXHDDBACKEND::pfnCheckIfValid */
360	static int parallelsCheckIfValid(const char *pszFilename, PVDINTERFACE pVDIfsDisk,
361	PVDINTERFACE pVDIfsImage, VDTYPE *penmType)
362	{
363	int rc;
364	PVDIOSTORAGE pStorage;
365	ParallelsHeader parallelsHeader;
366
367	PVDINTERFACEIOINT pIfIo = VDIfIoIntGet(pVDIfsImage);
368	AssertPtrReturn(pIfIo, VERR_INVALID_PARAMETER);
369
370	rc = vdIfIoIntFileOpen(pIfIo, pszFilename,
371	VDOpenFlagsToFileOpenFlags(VD_OPEN_FLAGS_READONLY,
372	false /* fCreate */),
373	&pStorage);
374	if (RT_FAILURE(rc))
375	return rc;
376
377	rc = vdIfIoIntFileReadSync(pIfIo, pStorage, 0, &parallelsHeader,
378	sizeof(ParallelsHeader));
379	if (RT_SUCCESS(rc))
380	{
381	if ( !memcmp(parallelsHeader.HeaderIdentifier, PARALLELS_HEADER_MAGIC, 16)
382	&& (parallelsHeader.uVersion == PARALLELS_DISK_VERSION))
383	rc = VINF_SUCCESS;
384	else
385	{
386	/*
387	* The image may be an fixed size image.
388	* Unfortunately fixed sized parallels images
389	* are just raw files hence no magic header to
390	* check for.
391	* The code succeeds if the file is a multiple
392	* of 512 and if the file extensions is *.hdd
393	*/
394	uint64_t cbFile;
395	char *pszSuffix;
396
397	rc = vdIfIoIntFileGetSize(pIfIo, pStorage, &cbFile);
398	if (RT_FAILURE(rc) \|\| ((cbFile % 512) != 0))
399	{
400	vdIfIoIntFileClose(pIfIo, pStorage);
401	return VERR_VD_PARALLELS_INVALID_HEADER;
402	}
403
404	pszSuffix = RTPathSuffix(pszFilename);
405	if (!pszSuffix \|\| strcmp(pszSuffix, ".hdd"))
406	rc = VERR_VD_PARALLELS_INVALID_HEADER;
407	else
408	rc = VINF_SUCCESS;
409	}
410	}
411
412	if (RT_SUCCESS(rc))
413	*penmType = VDTYPE_HDD;
414
415	vdIfIoIntFileClose(pIfIo, pStorage);
416	return rc;
417	}
418
419	/** @copydoc VBOXHDDBACKEND::pfnOpen */
420	static int parallelsOpen(const char *pszFilename, unsigned uOpenFlags,
421	PVDINTERFACE pVDIfsDisk, PVDINTERFACE pVDIfsImage,
422	VDTYPE enmType, void **ppBackendData)
423	{
424	LogFlowFunc(("pszFilename=\"%s\" uOpenFlags=%#x pVDIfsDisk=%#p pVDIfsImage=%#p ppBackendData=%#p\n", pszFilename, uOpenFlags, pVDIfsDisk, pVDIfsImage, ppBackendData));
425	int rc;
426	PPARALLELSIMAGE pImage;
427
428	/* Check open flags. All valid flags are supported. */
429	if (uOpenFlags & ~VD_OPEN_FLAGS_MASK)
430	{
431	rc = VERR_INVALID_PARAMETER;
432	goto out;
433	}
434
435	/* Check remaining arguments. */
436	if ( !VALID_PTR(pszFilename)
437	\|\| !*pszFilename)
438	{
439	rc = VERR_INVALID_PARAMETER;
440	goto out;
441	}
442
443	pImage = (PPARALLELSIMAGE)RTMemAllocZ(sizeof(PARALLELSIMAGE));
444	if (!pImage)
445	{
446	rc = VERR_NO_MEMORY;
447	goto out;
448	}
449
450	pImage->pszFilename = pszFilename;
451	pImage->pStorage = NULL;
452	pImage->pVDIfsDisk = pVDIfsDisk;
453	pImage->pVDIfsImage = pVDIfsImage;
454	pImage->fAllocationBitmapChanged = false;
455
456	rc = parallelsOpenImage(pImage, uOpenFlags);
457	if (RT_SUCCESS(rc))
458	*ppBackendData = pImage;
459	else
460	RTMemFree(pImage);
461
462	out:
463	LogFlowFunc(("returns %Rrc (pBackendData=%#p)\n", rc, *ppBackendData));
464	return rc;
465	}
466
467	/** @copydoc VBOXHDDBACKEND::pfnCreate */
468	static int parallelsCreate(const char *pszFilename, uint64_t cbSize,
469	unsigned uImageFlags, const char *pszComment,
470	PCVDGEOMETRY pPCHSGeometry,
471	PCVDGEOMETRY pLCHSGeometry, PCRTUUID pUuid,
472	unsigned uOpenFlags, unsigned uPercentStart,
473	unsigned uPercentSpan, PVDINTERFACE pVDIfsDisk,
474	PVDINTERFACE pVDIfsImage,
475	PVDINTERFACE pVDIfsOperation, void **ppBackendData)
476	{
477	LogFlowFunc(("pszFilename=\"%s\" cbSize=%llu uImageFlags=%#x pszComment=\"%s\" pPCHSGeometry=%#p pLCHSGeometry=%#p Uuid=%RTuuid uOpenFlags=%#x uPercentStart=%u uPercentSpan=%u pVDIfsDisk=%#p pVDIfsImage=%#p pVDIfsOperation=%#p ppBackendData=%#p",
478	pszFilename, cbSize, uImageFlags, pszComment, pPCHSGeometry, pLCHSGeometry, pUuid, uOpenFlags, uPercentStart, uPercentSpan, pVDIfsDisk, pVDIfsImage, pVDIfsOperation, ppBackendData));
479	int rc = VINF_SUCCESS;
480	PPARALLELSIMAGE pImage;
481
482	PFNVDPROGRESS pfnProgress = NULL;
483	void *pvUser = NULL;
484	PVDINTERFACEPROGRESS pIfProgress = VDIfProgressGet(pVDIfsOperation);
485	if (pIfProgress)
486	{
487	pfnProgress = pIfProgress->pfnProgress;
488	pvUser = pIfProgress->Core.pvUser;
489	}
490
491	/* Check open flags. All valid flags are supported. */
492	if (uOpenFlags & ~VD_OPEN_FLAGS_MASK)
493	{
494	rc = VERR_INVALID_PARAMETER;
495	goto out;
496	}
497
498	/* Check remaining arguments. */
499	if ( !VALID_PTR(pszFilename)
500	\|\| !*pszFilename
501	\|\| !VALID_PTR(pPCHSGeometry)
502	\|\| !VALID_PTR(pLCHSGeometry))
503	{
504	rc = VERR_INVALID_PARAMETER;
505	goto out;
506	}
507
508	pImage = (PPARALLELSIMAGE)RTMemAllocZ(sizeof(PARALLELSIMAGE));
509	if (!pImage)
510	{
511	rc = VERR_NO_MEMORY;
512	goto out;
513	}
514	pImage->pszFilename = pszFilename;
515	pImage->pStorage = NULL;
516	pImage->pVDIfsDisk = pVDIfsDisk;
517	pImage->pVDIfsImage = pVDIfsImage;
518
519	rc = parallelsCreateImage(pImage, cbSize, uImageFlags, pszComment,
520	pPCHSGeometry, pLCHSGeometry, uOpenFlags,
521	pfnProgress, pvUser, uPercentStart, uPercentSpan);
522	if (RT_SUCCESS(rc))
523	{
524	/* So far the image is opened in read/write mode. Make sure the
525	* image is opened in read-only mode if the caller requested that. */
526	if (uOpenFlags & VD_OPEN_FLAGS_READONLY)
527	{
528	parallelsFreeImage(pImage, false);
529	rc = parallelsOpenImage(pImage, uOpenFlags);
530	if (RT_FAILURE(rc))
531	{
532	RTMemFree(pImage);
533	goto out;
534	}
535	}
536	*ppBackendData = pImage;
537	}
538	else
539	RTMemFree(pImage);
540
541	out:
542	LogFlowFunc(("returns %Rrc\n", rc));
543	return rc;
544	}
545
546	/** @copydoc VBOXHDDBACKEND::pfnRename */
547	static int parallelsRename(void pBackendData, const char pszFilename)
548	{
549	LogFlowFunc(("pBackendData=%#p pszFilename=%#p\n", pBackendData, pszFilename));
550	int rc = VINF_SUCCESS;
551	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
552
553	/* Check arguments. */
554	if ( !pImage
555	\|\| !pszFilename
556	\|\| !*pszFilename)
557	{
558	rc = VERR_INVALID_PARAMETER;
559	goto out;
560	}
561
562	/* Close the image. */
563	rc = parallelsFreeImage(pImage, false);
564	if (RT_FAILURE(rc))
565	goto out;
566
567	/* Rename the file. */
568	rc = vdIfIoIntFileMove(pImage->pIfIo, pImage->pszFilename, pszFilename, 0);
569	if (RT_FAILURE(rc))
570	{
571	/* The move failed, try to reopen the original image. */
572	int rc2 = parallelsOpenImage(pImage, pImage->uOpenFlags);
573	if (RT_FAILURE(rc2))
574	rc = rc2;
575
576	goto out;
577	}
578
579	/* Update pImage with the new information. */
580	pImage->pszFilename = pszFilename;
581
582	/* Open the old image with new name. */
583	rc = parallelsOpenImage(pImage, pImage->uOpenFlags);
584	if (RT_FAILURE(rc))
585	goto out;
586
587	out:
588	LogFlowFunc(("returns %Rrc\n", rc));
589	return rc;
590	}
591
592	/** @copydoc VBOXHDDBACKEND::pfnClose */
593	static int parallelsClose(void *pBackendData, bool fDelete)
594	{
595	LogFlowFunc(("pBackendData=%#p fDelete=%d\n", pBackendData, fDelete));
596	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
597	int rc;
598
599	rc = parallelsFreeImage(pImage, fDelete);
600	RTMemFree(pImage);
601
602	LogFlowFunc(("returns %Rrc\n", rc));
603	return rc;
604	}
605
606	/** @copydoc VBOXHDDBACKEND::pfnRead */
607	static int parallelsRead(void *pBackendData, uint64_t uOffset, size_t cbToRead,
608	PVDIOCTX pIoCtx, size_t *pcbActuallyRead)
609	{
610	LogFlowFunc(("pBackendData=%#p uOffset=%llu pIoCtx=%#p cbToRead=%zu pcbActuallyRead=%#p\n",
611	pBackendData, uOffset, pIoCtx, cbToRead, pcbActuallyRead));
612	int rc = VINF_SUCCESS;
613	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
614	uint64_t uSector;
615	uint64_t uOffsetInFile;
616	uint32_t iIndexInAllocationTable;
617
618	AssertPtr(pImage);
619	Assert(uOffset % 512 == 0);
620	Assert(cbToRead % 512 == 0);
621
622	if (pImage->uImageFlags & VD_IMAGE_FLAGS_FIXED)
623	rc = vdIfIoIntFileReadUser(pImage->pIfIo, pImage->pStorage, uOffset,
624	pIoCtx, cbToRead);
625	else
626	{
627	/* Calculate offset in the real file. */
628	uSector = uOffset / 512;
629	/* One chunk in the file is always one track big. */
630	iIndexInAllocationTable = (uint32_t)(uSector / pImage->PCHSGeometry.cSectors);
631	uSector = uSector % pImage->PCHSGeometry.cSectors;
632
633	cbToRead = RT_MIN(cbToRead, (pImage->PCHSGeometry.cSectors - uSector)*512);
634
635	if (pImage->pAllocationBitmap[iIndexInAllocationTable] == 0)
636	rc = VERR_VD_BLOCK_FREE;
637	else
638	{
639	uOffsetInFile = (pImage->pAllocationBitmap[iIndexInAllocationTable] + uSector) * 512;
640	rc = vdIfIoIntFileReadUser(pImage->pIfIo, pImage->pStorage, uOffsetInFile,
641	pIoCtx, cbToRead);
642	}
643	}
644
645	*pcbActuallyRead = cbToRead;
646
647	LogFlowFunc(("returns %Rrc\n", rc));
648	return rc;
649	}
650
651	/** @copydoc VBOXHDDBACKEND::pfnWrite */
652	static int parallelsWrite(void *pBackendData, uint64_t uOffset, size_t cbToWrite,
653	PVDIOCTX pIoCtx, size_t pcbWriteProcess, size_t pcbPreRead,
654	size_t *pcbPostRead, unsigned fWrite)
655	{
656	LogFlowFunc(("pBackendData=%#p uOffset=%llu pIoCtx=%#p cbToWrite=%zu pcbWriteProcess=%#p\n",
657	pBackendData, uOffset, pIoCtx, cbToWrite, pcbWriteProcess));
658	int rc = VINF_SUCCESS;
659	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
660	uint64_t uSector;
661	uint64_t uOffsetInFile;
662	uint32_t iIndexInAllocationTable;
663
664	AssertPtr(pImage);
665	Assert(uOffset % 512 == 0);
666	Assert(cbToWrite % 512 == 0);
667
668	if (pImage->uImageFlags & VD_IMAGE_FLAGS_FIXED)
669	rc = vdIfIoIntFileWriteUser(pImage->pIfIo, pImage->pStorage, uOffset,
670	pIoCtx, cbToWrite, NULL, NULL);
671	else
672	{
673	/* Calculate offset in the real file. */
674	uSector = uOffset / 512;
675	/* One chunk in the file is always one track big. */
676	iIndexInAllocationTable = (uint32_t)(uSector / pImage->PCHSGeometry.cSectors);
677	uSector = uSector % pImage->PCHSGeometry.cSectors;
678
679	cbToWrite = RT_MIN(cbToWrite, (pImage->PCHSGeometry.cSectors - uSector)*512);
680
681	if (pImage->pAllocationBitmap[iIndexInAllocationTable] == 0)
682	{
683	if (fWrite & VD_WRITE_NO_ALLOC)
684	{
685	pcbPreRead = uSector 512;
686	pcbPostRead = pImage->PCHSGeometry.cSectors 512 - cbToWrite - *pcbPreRead;
687
688	if (pcbWriteProcess)
689	*pcbWriteProcess = cbToWrite;
690	return VERR_VD_BLOCK_FREE;
691	}
692
693	/* Allocate new chunk in the file. */
694	Assert(uSector == 0);
695	AssertMsg(pImage->cbFileCurrent % 512 == 0, ("File size is not a multiple of 512\n"));
696	pImage->pAllocationBitmap[iIndexInAllocationTable] = (uint32_t)(pImage->cbFileCurrent / 512);
697	pImage->cbFileCurrent += pImage->PCHSGeometry.cSectors * 512;
698	pImage->fAllocationBitmapChanged = true;
699	uOffsetInFile = (uint64_t)pImage->pAllocationBitmap[iIndexInAllocationTable] * 512;
700
701	/*
702	* Write the new block at the current end of the file.
703	*/
704	rc = vdIfIoIntFileWriteUser(pImage->pIfIo, pImage->pStorage,
705	uOffsetInFile, pIoCtx, cbToWrite, NULL, NULL);
706	if (RT_SUCCESS(rc) \|\| (rc == VERR_VD_ASYNC_IO_IN_PROGRESS))
707	{
708	/* Write the changed allocation bitmap entry. */
709	/** @todo: Error handling. */
710	rc = vdIfIoIntFileWriteMeta(pImage->pIfIo, pImage->pStorage,
711	sizeof(ParallelsHeader) + iIndexInAllocationTable * sizeof(uint32_t),
712	&pImage->pAllocationBitmap[iIndexInAllocationTable],
713	sizeof(uint32_t), pIoCtx,
714	NULL, NULL);
715	}
716
717	*pcbPreRead = 0;
718	*pcbPostRead = 0;
719	}
720	else
721	{
722	uOffsetInFile = (pImage->pAllocationBitmap[iIndexInAllocationTable] + uSector) * 512;
723	rc = vdIfIoIntFileWriteUser(pImage->pIfIo, pImage->pStorage,
724	uOffsetInFile, pIoCtx, cbToWrite, NULL, NULL);
725	}
726	}
727
728	if (pcbWriteProcess)
729	*pcbWriteProcess = cbToWrite;
730
731	LogFlowFunc(("returns %Rrc\n", rc));
732	return rc;
733	}
734
735	/** @copydoc VBOXHDDBACKEND::pfnFlush */
736	static int parallelsFlush(void *pBackendData, PVDIOCTX pIoCtx)
737	{
738	int rc = VINF_SUCCESS;
739	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
740
741	LogFlowFunc(("pImage=#%p\n", pImage));
742
743	/* Flush the file, everything is up to date already. */
744	rc = vdIfIoIntFileFlush(pImage->pIfIo, pImage->pStorage, pIoCtx, NULL, NULL);
745
746	LogFlowFunc(("returns %Rrc\n", rc));
747	return rc;
748	}
749
750	/** @copydoc VBOXHDDBACKEND::pfnGetVersion */
751	static unsigned parallelsGetVersion(void *pBackendData)
752	{
753	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
754	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
755
756	AssertPtr(pImage);
757
758	if (pImage)
759	return PARALLELS_DISK_VERSION;
760	else
761	return 0;
762	}
763
764	/** @copydoc VBOXHDDBACKEND::pfnGetSectorSize */
765	static uint32_t parallelsGetSectorSize(void *pBackendData)
766	{
767	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
768	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
769	uint32_t cb = 0;
770
771	AssertPtr(pImage);
772
773	if (pImage && pImage->pStorage)
774	cb = 512;
775
776	LogFlowFunc(("returns %llu\n", cb));
777	return cb;
778	}
779
780	/** @copydoc VBOXHDDBACKEND::pfnGetSize */
781	static uint64_t parallelsGetSize(void *pBackendData)
782	{
783	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
784	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
785	uint64_t cb = 0;
786
787	AssertPtr(pImage);
788
789	if (pImage && pImage->pStorage)
790	cb = pImage->cbSize;
791
792	LogFlowFunc(("returns %llu\n", cb));
793	return cb;
794	}
795
796	/** @copydoc VBOXHDDBACKEND::pfnGetFileSize */
797	static uint64_t parallelsGetFileSize(void *pBackendData)
798	{
799	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
800	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
801	uint64_t cb = 0;
802
803	AssertPtr(pImage);
804
805	if (pImage && pImage->pStorage)
806	cb = pImage->cbFileCurrent;
807
808	LogFlowFunc(("returns %lld\n", cb));
809	return cb;
810	}
811
812	/** @copydoc VBOXHDDBACKEND::pfnGetPCHSGeometry */
813	static int parallelsGetPCHSGeometry(void *pBackendData,
814	PVDGEOMETRY pPCHSGeometry)
815	{
816	LogFlowFunc(("pBackendData=%#p pPCHSGeometry=%#p\n", pBackendData, pPCHSGeometry));
817	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
818	int rc;
819
820	AssertPtr(pImage);
821
822	if (pImage)
823	{
824	if (pImage->PCHSGeometry.cCylinders)
825	{
826	*pPCHSGeometry = pImage->PCHSGeometry;
827	rc = VINF_SUCCESS;
828	}
829	else
830	rc = VERR_VD_GEOMETRY_NOT_SET;
831	}
832	else
833	rc = VERR_VD_NOT_OPENED;
834
835	LogFlowFunc(("returns %Rrc (PCHS=%u/%u/%u)\n", rc, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));
836	return rc;
837	}
838
839	/** @copydoc VBOXHDDBACKEND::pfnSetPCHSGeometry */
840	static int parallelsSetPCHSGeometry(void *pBackendData,
841	PCVDGEOMETRY pPCHSGeometry)
842	{
843	LogFlowFunc(("pBackendData=%#p pPCHSGeometry=%#p PCHS=%u/%u/%u\n", pBackendData, pPCHSGeometry, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));
844	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
845	int rc;
846
847	AssertPtr(pImage);
848
849	if (pImage)
850	{
851	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
852	{
853	rc = VERR_VD_IMAGE_READ_ONLY;
854	goto out;
855	}
856
857	pImage->PCHSGeometry = *pPCHSGeometry;
858	rc = VINF_SUCCESS;
859	}
860	else
861	rc = VERR_VD_NOT_OPENED;
862
863	out:
864	LogFlowFunc(("returns %Rrc\n", rc));
865	return rc;
866	}
867
868	/** @copydoc VBOXHDDBACKEND::pfnGetLCHSGeometry */
869	static int parallelsGetLCHSGeometry(void *pBackendData,
870	PVDGEOMETRY pLCHSGeometry)
871	{
872	LogFlowFunc(("pBackendData=%#p pLCHSGeometry=%#p\n", pBackendData, pLCHSGeometry));
873	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
874	int rc;
875
876	AssertPtr(pImage);
877
878	if (pImage)
879	{
880	if (pImage->LCHSGeometry.cCylinders)
881	{
882	*pLCHSGeometry = pImage->LCHSGeometry;
883	rc = VINF_SUCCESS;
884	}
885	else
886	rc = VERR_VD_GEOMETRY_NOT_SET;
887	}
888	else
889	rc = VERR_VD_NOT_OPENED;
890
891	LogFlowFunc(("returns %Rrc (LCHS=%u/%u/%u)\n", rc, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
892	return rc;
893	}
894
895	/** @copydoc VBOXHDDBACKEND::pfnSetLCHSGeometry */
896	static int parallelsSetLCHSGeometry(void *pBackendData,
897	PCVDGEOMETRY pLCHSGeometry)
898	{
899	LogFlowFunc(("pBackendData=%#p pLCHSGeometry=%#p LCHS=%u/%u/%u\n", pBackendData, pLCHSGeometry, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
900	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
901	int rc;
902
903	AssertPtr(pImage);
904
905	if (pImage)
906	{
907	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
908	{
909	rc = VERR_VD_IMAGE_READ_ONLY;
910	goto out;
911	}
912
913	pImage->LCHSGeometry = *pLCHSGeometry;
914	rc = VINF_SUCCESS;
915	}
916	else
917	rc = VERR_VD_NOT_OPENED;
918
919	out:
920	LogFlowFunc(("returns %Rrc\n", rc));
921	return rc;
922	}
923
924	/** @copydoc VBOXHDDBACKEND::pfnGetImageFlags */
925	static unsigned parallelsGetImageFlags(void *pBackendData)
926	{
927	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
928	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
929	unsigned uImageFlags;
930
931	AssertPtr(pImage);
932
933	if (pImage)
934	uImageFlags = pImage->uImageFlags;
935	else
936	uImageFlags = 0;
937
938	LogFlowFunc(("returns %#x\n", uImageFlags));
939	return uImageFlags;
940	}
941
942	/** @copydoc VBOXHDDBACKEND::pfnGetOpenFlags */
943	static unsigned parallelsGetOpenFlags(void *pBackendData)
944	{
945	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
946	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
947	unsigned uOpenFlags;
948
949	AssertPtr(pImage);
950
951	if (pImage)
952	uOpenFlags = pImage->uOpenFlags;
953	else
954	uOpenFlags = 0;
955
956	LogFlowFunc(("returns %#x\n", uOpenFlags));
957	return uOpenFlags;
958	}
959
960	/** @copydoc VBOXHDDBACKEND::pfnSetOpenFlags */
961	static int parallelsSetOpenFlags(void *pBackendData, unsigned uOpenFlags)
962	{
963	LogFlowFunc(("pBackendData=%#p\n uOpenFlags=%#x", pBackendData, uOpenFlags));
964	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
965	int rc;
966
967	/* Image must be opened and the new flags must be valid. */
968	if (!pImage \|\| (uOpenFlags & ~( VD_OPEN_FLAGS_READONLY \| VD_OPEN_FLAGS_INFO
969	\| VD_OPEN_FLAGS_ASYNC_IO \| VD_OPEN_FLAGS_SHAREABLE
970	\| VD_OPEN_FLAGS_SEQUENTIAL \| VD_OPEN_FLAGS_SKIP_CONSISTENCY_CHECKS)))
971	{
972	rc = VERR_INVALID_PARAMETER;
973	goto out;
974	}
975
976	/* Implement this operation via reopening the image. */
977	parallelsFreeImage(pImage, false);
978	rc = parallelsOpenImage(pImage, uOpenFlags);
979
980	out:
981	LogFlowFunc(("returns %Rrc\n", rc));
982	return rc;
983	}
984
985	/** @copydoc VBOXHDDBACKEND::pfnGetComment */
986	static int parallelsGetComment(void pBackendData, char pszComment,
987	size_t cbComment)
988	{
989	LogFlowFunc(("pBackendData=%#p pszComment=%#p cbComment=%zu\n", pBackendData, pszComment, cbComment));
990	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
991	int rc;
992
993	AssertPtr(pImage);
994
995	if (pImage)
996	rc = VERR_NOT_SUPPORTED;
997	else
998	rc = VERR_VD_NOT_OPENED;
999
1000	LogFlowFunc(("returns %Rrc comment='%s'\n", rc, pszComment));
1001	return rc;
1002	}
1003
1004	/** @copydoc VBOXHDDBACKEND::pfnSetComment */
1005	static int parallelsSetComment(void pBackendData, const char pszComment)
1006	{
1007	LogFlowFunc(("pBackendData=%#p pszComment=\"%s\"\n", pBackendData, pszComment));
1008	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1009	int rc;
1010
1011	AssertPtr(pImage);
1012
1013	if (pImage)
1014	{
1015	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
1016	rc = VERR_VD_IMAGE_READ_ONLY;
1017	else
1018	rc = VERR_NOT_SUPPORTED;
1019	}
1020	else
1021	rc = VERR_VD_NOT_OPENED;
1022
1023	LogFlowFunc(("returns %Rrc\n", rc));
1024	return rc;
1025	}
1026
1027	/** @copydoc VBOXHDDBACKEND::pfnGetUuid */
1028	static int parallelsGetUuid(void *pBackendData, PRTUUID pUuid)
1029	{
1030	LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
1031	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1032	int rc;
1033
1034	AssertPtr(pImage);
1035
1036	if (pImage)
1037	rc = VERR_NOT_SUPPORTED;
1038	else
1039	rc = VERR_VD_NOT_OPENED;
1040
1041	LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
1042	return rc;
1043	}
1044
1045	/** @copydoc VBOXHDDBACKEND::pfnSetUuid */
1046	static int parallelsSetUuid(void *pBackendData, PCRTUUID pUuid)
1047	{
1048	LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
1049	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1050	int rc;
1051
1052	AssertPtr(pImage);
1053
1054	if (pImage)
1055	{
1056	if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
1057	rc = VERR_NOT_SUPPORTED;
1058	else
1059	rc = VERR_VD_IMAGE_READ_ONLY;
1060	}
1061	else
1062	rc = VERR_VD_NOT_OPENED;
1063
1064	LogFlowFunc(("returns %Rrc\n", rc));
1065	return rc;
1066	}
1067
1068	/** @copydoc VBOXHDDBACKEND::pfnGetModificationUuid */
1069	static int parallelsGetModificationUuid(void *pBackendData, PRTUUID pUuid)
1070	{
1071	LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
1072	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1073	int rc;
1074
1075	AssertPtr(pImage);
1076
1077	if (pImage)
1078	rc = VERR_NOT_SUPPORTED;
1079	else
1080	rc = VERR_VD_NOT_OPENED;
1081
1082	LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
1083	return rc;
1084	}
1085
1086	/** @copydoc VBOXHDDBACKEND::pfnSetModificationUuid */
1087	static int parallelsSetModificationUuid(void *pBackendData, PCRTUUID pUuid)
1088	{
1089	LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
1090	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1091	int rc;
1092
1093	AssertPtr(pImage);
1094
1095	if (pImage)
1096	{
1097	if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
1098	rc = VERR_NOT_SUPPORTED;
1099	else
1100	rc = VERR_VD_IMAGE_READ_ONLY;
1101	}
1102	else
1103	rc = VERR_VD_NOT_OPENED;
1104
1105	LogFlowFunc(("returns %Rrc\n", rc));
1106	return rc;
1107	}
1108
1109	/** @copydoc VBOXHDDBACKEND::pfnGetParentUuid */
1110	static int parallelsGetParentUuid(void *pBackendData, PRTUUID pUuid)
1111	{
1112	LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
1113	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1114	int rc;
1115
1116	AssertPtr(pImage);
1117
1118	if (pImage)
1119	rc = VERR_NOT_SUPPORTED;
1120	else
1121	rc = VERR_VD_NOT_OPENED;
1122
1123	LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
1124	return rc;
1125	}
1126
1127	/** @copydoc VBOXHDDBACKEND::pfnSetParentUuid */
1128	static int parallelsSetParentUuid(void *pBackendData, PCRTUUID pUuid)
1129	{
1130	LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
1131	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1132	int rc;
1133
1134	AssertPtr(pImage);
1135
1136	if (pImage)
1137	{
1138	if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
1139	rc = VERR_NOT_SUPPORTED;
1140	else
1141	rc = VERR_VD_IMAGE_READ_ONLY;
1142	}
1143	else
1144	rc = VERR_VD_NOT_OPENED;
1145
1146	LogFlowFunc(("returns %Rrc\n", rc));
1147	return rc;
1148	}
1149
1150	/** @copydoc VBOXHDDBACKEND::pfnGetParentModificationUuid */
1151	static int parallelsGetParentModificationUuid(void *pBackendData, PRTUUID pUuid)
1152	{
1153	LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
1154	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1155	int rc;
1156
1157	AssertPtr(pImage);
1158
1159	if (pImage)
1160	rc = VERR_NOT_SUPPORTED;
1161	else
1162	rc = VERR_VD_NOT_OPENED;
1163
1164	LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
1165	return rc;
1166	}
1167
1168	/** @copydoc VBOXHDDBACKEND::pfnSetParentModificationUuid */
1169	static int parallelsSetParentModificationUuid(void *pBackendData, PCRTUUID pUuid)
1170	{
1171	LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
1172	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1173	int rc;
1174
1175	AssertPtr(pImage);
1176
1177	if (pImage)
1178	{
1179	if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
1180	rc = VERR_NOT_SUPPORTED;
1181	else
1182	rc = VERR_VD_IMAGE_READ_ONLY;
1183	}
1184	else
1185	rc = VERR_VD_NOT_OPENED;
1186
1187	LogFlowFunc(("returns %Rrc\n", rc));
1188	return rc;
1189	}
1190
1191	/** @copydoc VBOXHDDBACKEND::pfnDump */
1192	static void parallelsDump(void *pBackendData)
1193	{
1194	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1195
1196	AssertPtr(pImage);
1197	if (pImage)
1198	{
1199	vdIfErrorMessage(pImage->pIfError, "Header: Geometry PCHS=%u/%u/%u LCHS=%u/%u/%u\n",
1200	pImage->PCHSGeometry.cCylinders, pImage->PCHSGeometry.cHeads, pImage->PCHSGeometry.cSectors,
1201	pImage->LCHSGeometry.cCylinders, pImage->LCHSGeometry.cHeads, pImage->LCHSGeometry.cSectors);
1202	}
1203	}
1204
1205
1206
1207	const VBOXHDDBACKEND g_ParallelsBackend =
1208	{
1209	/* pszBackendName */
1210	"Parallels",
1211	/* cbSize */
1212	sizeof(VBOXHDDBACKEND),
1213	/* uBackendCaps */
1214	VD_CAP_FILE \| VD_CAP_ASYNC \| VD_CAP_VFS \| VD_CAP_CREATE_DYNAMIC \| VD_CAP_DIFF,
1215	/* paFileExtensions */
1216	s_aParallelsFileExtensions,
1217	/* paConfigInfo */
1218	NULL,
1219	/* pfnCheckIfValid */
1220	parallelsCheckIfValid,
1221	/* pfnOpen */
1222	parallelsOpen,
1223	/* pfnCreate */
1224	parallelsCreate,
1225	/* pfnRename */
1226	parallelsRename,
1227	/* pfnClose */
1228	parallelsClose,
1229	/* pfnRead */
1230	parallelsRead,
1231	/* pfnWrite */
1232	parallelsWrite,
1233	/* pfnFlush */
1234	parallelsFlush,
1235	/* pfnDiscard */
1236	NULL,
1237	/* pfnGetVersion */
1238	parallelsGetVersion,
1239	/* pfnGetSectorSize */
1240	parallelsGetSectorSize,
1241	/* pfnGetSize */
1242	parallelsGetSize,
1243	/* pfnGetFileSize */
1244	parallelsGetFileSize,
1245	/* pfnGetPCHSGeometry */
1246	parallelsGetPCHSGeometry,
1247	/* pfnSetPCHSGeometry */
1248	parallelsSetPCHSGeometry,
1249	/* pfnGetLCHSGeometry */
1250	parallelsGetLCHSGeometry,
1251	/* pfnSetLCHSGeometry */
1252	parallelsSetLCHSGeometry,
1253	/* pfnGetImageFlags */
1254	parallelsGetImageFlags,
1255	/* pfnGetOpenFlags */
1256	parallelsGetOpenFlags,
1257	/* pfnSetOpenFlags */
1258	parallelsSetOpenFlags,
1259	/* pfnGetComment */
1260	parallelsGetComment,
1261	/* pfnSetComment */
1262	parallelsSetComment,
1263	/* pfnGetUuid */
1264	parallelsGetUuid,
1265	/* pfnSetUuid */
1266	parallelsSetUuid,
1267	/* pfnGetModificationUuid */
1268	parallelsGetModificationUuid,
1269	/* pfnSetModificationUuid */
1270	parallelsSetModificationUuid,
1271	/* pfnGetParentUuid */
1272	parallelsGetParentUuid,
1273	/* pfnSetParentUuid */
1274	parallelsSetParentUuid,
1275	/* pfnGetParentModificationUuid */
1276	parallelsGetParentModificationUuid,
1277	/* pfnSetParentModificationUuid */
1278	parallelsSetParentModificationUuid,
1279	/* pfnDump */
1280	parallelsDump,
1281	/* pfnGetTimeStamp */
1282	NULL,
1283	/* pfnGetParentTimeStamp */
1284	NULL,
1285	/* pfnSetParentTimeStamp */
1286	NULL,
1287	/* pfnGetParentFilename */
1288	NULL,
1289	/* pfnSetParentFilename */
1290	NULL,
1291	/* pfnComposeLocation */
1292	genericFileComposeLocation,
1293	/* pfnComposeName */
1294	genericFileComposeName,
1295	/* pfnCompact */
1296	NULL,
1297	/* pfnResize */
1298	NULL,
1299	/* pfnRepair */
1300	NULL,
1301	/* pfnTraverseMetadata */
1302	NULL
1303	};

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source: vbox/trunk/src/VBox/Storage/Parallels.cpp@ 52442

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