Parallels.cpp@ 61202

Last change on this file since 61202 was 58132, checked in by vboxsync, 9 years ago
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1	/* $Id: Parallels.cpp 58132 2015-10-09 00:09:37Z vboxsync $ */
2	/** @file
3	*
4	* Parallels hdd disk image, core code.
5	*/
6
7	/*
8	* Copyright (C) 2006-2015 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	/*********************************************************************************************************************************
102	* Static Variables *
103	*********************************************************************************************************************************/
104
105	/** NULL-terminated array of supported file extensions. */
106	static const VDFILEEXTENSION s_aParallelsFileExtensions[] =
107	{
108	{"hdd", VDTYPE_HDD},
109	{NULL, VDTYPE_INVALID}
110	};
111
112	/***************************************************
113	* Internal functions *
114	**************************************************/
115
116	/**
117	* Internal. Flush image data to disk.
118	*/
119	static int parallelsFlushImage(PPARALLELSIMAGE pImage)
120	{
121	int rc = VINF_SUCCESS;
122
123	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
124	return VINF_SUCCESS;
125
126	if ( !(pImage->uImageFlags & VD_IMAGE_FLAGS_FIXED)
127	&& (pImage->fAllocationBitmapChanged))
128	{
129	pImage->fAllocationBitmapChanged = false;
130	/* Write the allocation bitmap to the file. */
131	rc = vdIfIoIntFileWriteSync(pImage->pIfIo, pImage->pStorage,
132	sizeof(ParallelsHeader), pImage->pAllocationBitmap,
133	pImage->cAllocationBitmapEntries * sizeof(uint32_t));
134	if (RT_FAILURE(rc))
135	return rc;
136	}
137
138	/* Flush file. */
139	rc = vdIfIoIntFileFlushSync(pImage->pIfIo, pImage->pStorage);
140
141	LogFlowFunc(("returns %Rrc\n", rc));
142	return rc;
143	}
144
145	/**
146	* Internal. Free all allocated space for representing an image except pImage,
147	* and optionally delete the image from disk.
148	*/
149	static int parallelsFreeImage(PPARALLELSIMAGE pImage, bool fDelete)
150	{
151	int rc = VINF_SUCCESS;
152
153	/* Freeing a never allocated image (e.g. because the open failed) is
154	* not signalled as an error. After all nothing bad happens. */
155	if (pImage)
156	{
157	if (pImage->pStorage)
158	{
159	/* No point updating the file that is deleted anyway. */
160	if (!fDelete)
161	parallelsFlushImage(pImage);
162
163	rc = vdIfIoIntFileClose(pImage->pIfIo, pImage->pStorage);
164	pImage->pStorage = NULL;
165	}
166
167	if (pImage->pAllocationBitmap)
168	{
169	RTMemFree(pImage->pAllocationBitmap);
170	pImage->pAllocationBitmap = NULL;
171	}
172
173	if (fDelete && pImage->pszFilename)
174	vdIfIoIntFileDelete(pImage->pIfIo, pImage->pszFilename);
175	}
176
177	return rc;
178	}
179
180	static int parallelsOpenImage(PPARALLELSIMAGE pImage, unsigned uOpenFlags)
181	{
182	int rc = VINF_SUCCESS;
183	ParallelsHeader parallelsHeader;
184
185	pImage->pIfError = VDIfErrorGet(pImage->pVDIfsDisk);
186	pImage->pIfIo = VDIfIoIntGet(pImage->pVDIfsImage);
187	pImage->uOpenFlags = uOpenFlags;
188	AssertPtrReturn(pImage->pIfIo, VERR_INVALID_PARAMETER);
189
190	rc = vdIfIoIntFileOpen(pImage->pIfIo, pImage->pszFilename,
191	VDOpenFlagsToFileOpenFlags(uOpenFlags,
192	false /* fCreate */),
193	&pImage->pStorage);
194	if (RT_FAILURE(rc))
195	goto out;
196
197	rc = vdIfIoIntFileGetSize(pImage->pIfIo, pImage->pStorage, &pImage->cbFileCurrent);
198	if (RT_FAILURE(rc))
199	goto out;
200	AssertMsg(pImage->cbFileCurrent % 512 == 0, ("File size is not a multiple of 512\n"));
201
202	rc = vdIfIoIntFileReadSync(pImage->pIfIo, pImage->pStorage, 0,
203	&parallelsHeader, sizeof(parallelsHeader));
204	if (RT_FAILURE(rc))
205	goto out;
206
207	if (memcmp(parallelsHeader.HeaderIdentifier, PARALLELS_HEADER_MAGIC, 16))
208	{
209	/* Check if the file has hdd as extension. It is a fixed size raw image then. */
210	char *pszSuffix = RTPathSuffix(pImage->pszFilename);
211	if (strcmp(pszSuffix, ".hdd"))
212	{
213	rc = VERR_VD_PARALLELS_INVALID_HEADER;
214	goto out;
215	}
216
217	/* This is a fixed size image. */
218	pImage->uImageFlags \|= VD_IMAGE_FLAGS_FIXED;
219	pImage->cbSize = pImage->cbFileCurrent;
220
221	pImage->PCHSGeometry.cHeads = 16;
222	pImage->PCHSGeometry.cSectors = 63;
223	uint64_t cCylinders = pImage->cbSize / (512 * pImage->PCHSGeometry.cSectors * pImage->PCHSGeometry.cHeads);
224	pImage->PCHSGeometry.cCylinders = (uint32_t)cCylinders;
225	}
226	else
227	{
228	if (parallelsHeader.uVersion != PARALLELS_DISK_VERSION)
229	{
230	rc = VERR_NOT_SUPPORTED;
231	goto out;
232	}
233
234	if (parallelsHeader.cEntriesInAllocationBitmap > (1 << 30))
235	{
236	rc = VERR_NOT_SUPPORTED;
237	goto out;
238	}
239
240	Log(("cSectors=%u\n", parallelsHeader.cSectors));
241	pImage->cbSize = ((uint64_t)parallelsHeader.cSectors) * 512;
242	pImage->uImageFlags = VD_IMAGE_FLAGS_NONE;
243	pImage->cAllocationBitmapEntries = parallelsHeader.cEntriesInAllocationBitmap;
244	pImage->pAllocationBitmap = (uint32_t )RTMemAllocZ((uint32_t)pImage->cAllocationBitmapEntries sizeof(uint32_t));
245	if (!pImage->pAllocationBitmap)
246	{
247	rc = VERR_NO_MEMORY;
248	goto out;
249	}
250
251	rc = vdIfIoIntFileReadSync(pImage->pIfIo, pImage->pStorage,
252	sizeof(ParallelsHeader), pImage->pAllocationBitmap,
253	pImage->cAllocationBitmapEntries * sizeof(uint32_t));
254	if (RT_FAILURE(rc))
255	goto out;
256
257	pImage->PCHSGeometry.cCylinders = parallelsHeader.cCylinders;
258	pImage->PCHSGeometry.cHeads = parallelsHeader.cHeads;
259	pImage->PCHSGeometry.cSectors = parallelsHeader.cSectorsPerTrack;
260	}
261
262	out:
263	LogFlowFunc(("returns %Rrc\n", rc));
264	return rc;
265	}
266
267	/**
268	* Internal: Create a parallels image.
269	*/
270	static int parallelsCreateImage(PPARALLELSIMAGE pImage, uint64_t cbSize,
271	unsigned uImageFlags, const char *pszComment,
272	PCVDGEOMETRY pPCHSGeometry,
273	PCVDGEOMETRY pLCHSGeometry, unsigned uOpenFlags,
274	PFNVDPROGRESS pfnProgress, void *pvUser,
275	unsigned uPercentStart, unsigned uPercentSpan)
276	{
277	int rc = VINF_SUCCESS;
278	int32_t fOpen;
279
280	if (uImageFlags & VD_IMAGE_FLAGS_FIXED)
281	{
282	rc = vdIfError(pImage->pIfError, VERR_VD_INVALID_TYPE, RT_SRC_POS, N_("Parallels: cannot create fixed image '%s'. Create a raw image"), pImage->pszFilename);
283	goto out;
284	}
285
286	pImage->uOpenFlags = uOpenFlags & ~VD_OPEN_FLAGS_READONLY;
287	pImage->uImageFlags = uImageFlags;
288	pImage->PCHSGeometry = *pPCHSGeometry;
289	pImage->LCHSGeometry = *pLCHSGeometry;
290
291	if (!pImage->PCHSGeometry.cCylinders)
292	{
293	/* Set defaults. */
294	pImage->PCHSGeometry.cSectors = 63;
295	pImage->PCHSGeometry.cHeads = 16;
296	pImage->PCHSGeometry.cCylinders = pImage->cbSize / (512 * pImage->PCHSGeometry.cSectors * pImage->PCHSGeometry.cHeads);
297	}
298
299	pImage->pIfError = VDIfErrorGet(pImage->pVDIfsDisk);
300	pImage->pIfIo = VDIfIoIntGet(pImage->pVDIfsImage);
301	AssertPtrReturn(pImage->pIfIo, VERR_INVALID_PARAMETER);
302
303	/* Create image file. */
304	fOpen = VDOpenFlagsToFileOpenFlags(pImage->uOpenFlags, true /* fCreate */);
305	rc = vdIfIoIntFileOpen(pImage->pIfIo, pImage->pszFilename, fOpen, &pImage->pStorage);
306	if (RT_FAILURE(rc))
307	{
308	rc = vdIfError(pImage->pIfError, rc, RT_SRC_POS, N_("Parallels: cannot create image '%s'"), pImage->pszFilename);
309	goto out;
310	}
311
312	if (RT_SUCCESS(rc) && pfnProgress)
313	pfnProgress(pvUser, uPercentStart + uPercentSpan * 98 / 100);
314
315	/* Setup image state. */
316	pImage->cbSize = cbSize;
317	pImage->cAllocationBitmapEntries = cbSize / 512 / pImage->PCHSGeometry.cSectors;
318	if (pImage->cAllocationBitmapEntries * pImage->PCHSGeometry.cSectors * 512 < cbSize)
319	pImage->cAllocationBitmapEntries++;
320	pImage->fAllocationBitmapChanged = true;
321	pImage->cbFileCurrent = sizeof(ParallelsHeader) + pImage->cAllocationBitmapEntries * sizeof(uint32_t);
322	/* Round to next sector boundary. */
323	pImage->cbFileCurrent += 512 - pImage->cbFileCurrent % 512;
324	Assert(!(pImage->cbFileCurrent % 512));
325	pImage->pAllocationBitmap = (uint32_t )RTMemAllocZ(pImage->cAllocationBitmapEntries sizeof(uint32_t));
326	if (!pImage->pAllocationBitmap)
327	rc = VERR_NO_MEMORY;
328
329	if (RT_SUCCESS(rc))
330	{
331	ParallelsHeader Header;
332
333	memcpy(Header.HeaderIdentifier, PARALLELS_HEADER_MAGIC, sizeof(Header.HeaderIdentifier));
334	Header.uVersion = RT_H2LE_U32(PARALLELS_DISK_VERSION);
335	Header.cHeads = RT_H2LE_U32(pImage->PCHSGeometry.cHeads);
336	Header.cCylinders = RT_H2LE_U32(pImage->PCHSGeometry.cCylinders);
337	Header.cSectorsPerTrack = RT_H2LE_U32(pImage->PCHSGeometry.cSectors);
338	Header.cEntriesInAllocationBitmap = RT_H2LE_U32(pImage->cAllocationBitmapEntries);
339	Header.cSectors = RT_H2LE_U32(pImage->cbSize / 512);
340	memset(Header.Padding, 0, sizeof(Header.Padding));
341
342	/* Write header and allocation bitmap. */
343	rc = vdIfIoIntFileSetSize(pImage->pIfIo, pImage->pStorage, pImage->cbFileCurrent);
344	if (RT_SUCCESS(rc))
345	rc = vdIfIoIntFileWriteSync(pImage->pIfIo, pImage->pStorage, 0,
346	&Header, sizeof(Header));
347	if (RT_SUCCESS(rc))
348	rc = parallelsFlushImage(pImage); /* Writes the allocation bitmap. */
349	}
350
351	out:
352	if (RT_SUCCESS(rc) && pfnProgress)
353	pfnProgress(pvUser, uPercentStart + uPercentSpan);
354
355	if (RT_FAILURE(rc))
356	parallelsFreeImage(pImage, rc != VERR_ALREADY_EXISTS);
357	return rc;
358	}
359
360	/** @copydoc VBOXHDDBACKEND::pfnCheckIfValid */
361	static DECLCALLBACK(int) parallelsCheckIfValid(const char *pszFilename, PVDINTERFACE pVDIfsDisk,
362	PVDINTERFACE pVDIfsImage, VDTYPE *penmType)
363	{
364	int rc;
365	PVDIOSTORAGE pStorage;
366	ParallelsHeader parallelsHeader;
367
368	PVDINTERFACEIOINT pIfIo = VDIfIoIntGet(pVDIfsImage);
369	AssertPtrReturn(pIfIo, VERR_INVALID_PARAMETER);
370
371	rc = vdIfIoIntFileOpen(pIfIo, pszFilename,
372	VDOpenFlagsToFileOpenFlags(VD_OPEN_FLAGS_READONLY,
373	false /* fCreate */),
374	&pStorage);
375	if (RT_FAILURE(rc))
376	return rc;
377
378	rc = vdIfIoIntFileReadSync(pIfIo, pStorage, 0, &parallelsHeader,
379	sizeof(ParallelsHeader));
380	if (RT_SUCCESS(rc))
381	{
382	if ( !memcmp(parallelsHeader.HeaderIdentifier, PARALLELS_HEADER_MAGIC, 16)
383	&& (parallelsHeader.uVersion == PARALLELS_DISK_VERSION))
384	rc = VINF_SUCCESS;
385	else
386	{
387	/*
388	* The image may be an fixed size image.
389	* Unfortunately fixed sized parallels images
390	* are just raw files hence no magic header to
391	* check for.
392	* The code succeeds if the file is a multiple
393	* of 512 and if the file extensions is *.hdd
394	*/
395	uint64_t cbFile;
396	char *pszSuffix;
397
398	rc = vdIfIoIntFileGetSize(pIfIo, pStorage, &cbFile);
399	if (RT_FAILURE(rc) \|\| ((cbFile % 512) != 0))
400	{
401	vdIfIoIntFileClose(pIfIo, pStorage);
402	return VERR_VD_PARALLELS_INVALID_HEADER;
403	}
404
405	pszSuffix = RTPathSuffix(pszFilename);
406	if (!pszSuffix \|\| strcmp(pszSuffix, ".hdd"))
407	rc = VERR_VD_PARALLELS_INVALID_HEADER;
408	else
409	rc = VINF_SUCCESS;
410	}
411	}
412
413	if (RT_SUCCESS(rc))
414	*penmType = VDTYPE_HDD;
415
416	vdIfIoIntFileClose(pIfIo, pStorage);
417	return rc;
418	}
419
420	/** @copydoc VBOXHDDBACKEND::pfnOpen */
421	static DECLCALLBACK(int) parallelsOpen(const char *pszFilename, unsigned uOpenFlags,
422	PVDINTERFACE pVDIfsDisk, PVDINTERFACE pVDIfsImage,
423	VDTYPE enmType, void **ppBackendData)
424	{
425	LogFlowFunc(("pszFilename=\"%s\" uOpenFlags=%#x pVDIfsDisk=%#p pVDIfsImage=%#p enmType=%u ppBackendData=%#p\n", pszFilename, uOpenFlags, pVDIfsDisk, pVDIfsImage, enmType, ppBackendData));
426	int rc;
427	PPARALLELSIMAGE pImage;
428
429	NOREF(enmType); /*< @todo r=klaus make use of the type info. /
430
431	/* Check open flags. All valid flags are supported. */
432	if (uOpenFlags & ~VD_OPEN_FLAGS_MASK)
433	{
434	rc = VERR_INVALID_PARAMETER;
435	goto out;
436	}
437
438	/* Check remaining arguments. */
439	if ( !VALID_PTR(pszFilename)
440	\|\| !*pszFilename)
441	{
442	rc = VERR_INVALID_PARAMETER;
443	goto out;
444	}
445
446	pImage = (PPARALLELSIMAGE)RTMemAllocZ(sizeof(PARALLELSIMAGE));
447	if (!pImage)
448	{
449	rc = VERR_NO_MEMORY;
450	goto out;
451	}
452
453	pImage->pszFilename = pszFilename;
454	pImage->pStorage = NULL;
455	pImage->pVDIfsDisk = pVDIfsDisk;
456	pImage->pVDIfsImage = pVDIfsImage;
457	pImage->fAllocationBitmapChanged = false;
458
459	rc = parallelsOpenImage(pImage, uOpenFlags);
460	if (RT_SUCCESS(rc))
461	*ppBackendData = pImage;
462	else
463	RTMemFree(pImage);
464
465	out:
466	LogFlowFunc(("returns %Rrc (pBackendData=%#p)\n", rc, *ppBackendData));
467	return rc;
468	}
469
470	/** @copydoc VBOXHDDBACKEND::pfnCreate */
471	static DECLCALLBACK(int) parallelsCreate(const char *pszFilename, uint64_t cbSize,
472	unsigned uImageFlags, const char *pszComment,
473	PCVDGEOMETRY pPCHSGeometry,
474	PCVDGEOMETRY pLCHSGeometry, PCRTUUID pUuid,
475	unsigned uOpenFlags, unsigned uPercentStart,
476	unsigned uPercentSpan, PVDINTERFACE pVDIfsDisk,
477	PVDINTERFACE pVDIfsImage,
478	PVDINTERFACE pVDIfsOperation, VDTYPE enmType,
479	void **ppBackendData)
480	{
481	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 enmType=%u ppBackendData=%#p",
482	pszFilename, cbSize, uImageFlags, pszComment, pPCHSGeometry, pLCHSGeometry, pUuid, uOpenFlags, uPercentStart, uPercentSpan, pVDIfsDisk, pVDIfsImage, pVDIfsOperation, enmType, ppBackendData));
483	int rc = VINF_SUCCESS;
484	PPARALLELSIMAGE pImage;
485
486	PFNVDPROGRESS pfnProgress = NULL;
487	void *pvUser = NULL;
488	PVDINTERFACEPROGRESS pIfProgress = VDIfProgressGet(pVDIfsOperation);
489	if (pIfProgress)
490	{
491	pfnProgress = pIfProgress->pfnProgress;
492	pvUser = pIfProgress->Core.pvUser;
493	}
494
495	/* Check the VD container type. */
496	if (enmType != VDTYPE_HDD)
497	{
498	rc = VERR_VD_INVALID_TYPE;
499	goto out;
500	}
501
502	/* Check open flags. All valid flags are supported. */
503	if (uOpenFlags & ~VD_OPEN_FLAGS_MASK)
504	{
505	rc = VERR_INVALID_PARAMETER;
506	goto out;
507	}
508
509	/* Check remaining arguments. */
510	if ( !VALID_PTR(pszFilename)
511	\|\| !*pszFilename
512	\|\| !VALID_PTR(pPCHSGeometry)
513	\|\| !VALID_PTR(pLCHSGeometry))
514	{
515	rc = VERR_INVALID_PARAMETER;
516	goto out;
517	}
518
519	pImage = (PPARALLELSIMAGE)RTMemAllocZ(sizeof(PARALLELSIMAGE));
520	if (!pImage)
521	{
522	rc = VERR_NO_MEMORY;
523	goto out;
524	}
525	pImage->pszFilename = pszFilename;
526	pImage->pStorage = NULL;
527	pImage->pVDIfsDisk = pVDIfsDisk;
528	pImage->pVDIfsImage = pVDIfsImage;
529
530	rc = parallelsCreateImage(pImage, cbSize, uImageFlags, pszComment,
531	pPCHSGeometry, pLCHSGeometry, uOpenFlags,
532	pfnProgress, pvUser, uPercentStart, uPercentSpan);
533	if (RT_SUCCESS(rc))
534	{
535	/* So far the image is opened in read/write mode. Make sure the
536	* image is opened in read-only mode if the caller requested that. */
537	if (uOpenFlags & VD_OPEN_FLAGS_READONLY)
538	{
539	parallelsFreeImage(pImage, false);
540	rc = parallelsOpenImage(pImage, uOpenFlags);
541	if (RT_FAILURE(rc))
542	{
543	RTMemFree(pImage);
544	goto out;
545	}
546	}
547	*ppBackendData = pImage;
548	}
549	else
550	RTMemFree(pImage);
551
552	out:
553	LogFlowFunc(("returns %Rrc\n", rc));
554	return rc;
555	}
556
557	/** @copydoc VBOXHDDBACKEND::pfnRename */
558	static DECLCALLBACK(int) parallelsRename(void pBackendData, const char pszFilename)
559	{
560	LogFlowFunc(("pBackendData=%#p pszFilename=%#p\n", pBackendData, pszFilename));
561	int rc = VINF_SUCCESS;
562	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
563
564	/* Check arguments. */
565	if ( !pImage
566	\|\| !pszFilename
567	\|\| !*pszFilename)
568	{
569	rc = VERR_INVALID_PARAMETER;
570	goto out;
571	}
572
573	/* Close the image. */
574	rc = parallelsFreeImage(pImage, false);
575	if (RT_FAILURE(rc))
576	goto out;
577
578	/* Rename the file. */
579	rc = vdIfIoIntFileMove(pImage->pIfIo, pImage->pszFilename, pszFilename, 0);
580	if (RT_FAILURE(rc))
581	{
582	/* The move failed, try to reopen the original image. */
583	int rc2 = parallelsOpenImage(pImage, pImage->uOpenFlags);
584	if (RT_FAILURE(rc2))
585	rc = rc2;
586
587	goto out;
588	}
589
590	/* Update pImage with the new information. */
591	pImage->pszFilename = pszFilename;
592
593	/* Open the old image with new name. */
594	rc = parallelsOpenImage(pImage, pImage->uOpenFlags);
595	if (RT_FAILURE(rc))
596	goto out;
597
598	out:
599	LogFlowFunc(("returns %Rrc\n", rc));
600	return rc;
601	}
602
603	/** @copydoc VBOXHDDBACKEND::pfnClose */
604	static DECLCALLBACK(int) parallelsClose(void *pBackendData, bool fDelete)
605	{
606	LogFlowFunc(("pBackendData=%#p fDelete=%d\n", pBackendData, fDelete));
607	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
608	int rc;
609
610	rc = parallelsFreeImage(pImage, fDelete);
611	RTMemFree(pImage);
612
613	LogFlowFunc(("returns %Rrc\n", rc));
614	return rc;
615	}
616
617	/** @copydoc VBOXHDDBACKEND::pfnRead */
618	static DECLCALLBACK(int) parallelsRead(void *pBackendData, uint64_t uOffset, size_t cbToRead,
619	PVDIOCTX pIoCtx, size_t *pcbActuallyRead)
620	{
621	LogFlowFunc(("pBackendData=%#p uOffset=%llu pIoCtx=%#p cbToRead=%zu pcbActuallyRead=%#p\n",
622	pBackendData, uOffset, pIoCtx, cbToRead, pcbActuallyRead));
623	int rc = VINF_SUCCESS;
624	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
625	uint64_t uSector;
626	uint64_t uOffsetInFile;
627	uint32_t iIndexInAllocationTable;
628
629	AssertPtr(pImage);
630	Assert(uOffset % 512 == 0);
631	Assert(cbToRead % 512 == 0);
632
633	if (pImage->uImageFlags & VD_IMAGE_FLAGS_FIXED)
634	rc = vdIfIoIntFileReadUser(pImage->pIfIo, pImage->pStorage, uOffset,
635	pIoCtx, cbToRead);
636	else
637	{
638	/* Calculate offset in the real file. */
639	uSector = uOffset / 512;
640	/* One chunk in the file is always one track big. */
641	iIndexInAllocationTable = (uint32_t)(uSector / pImage->PCHSGeometry.cSectors);
642	uSector = uSector % pImage->PCHSGeometry.cSectors;
643
644	cbToRead = RT_MIN(cbToRead, (pImage->PCHSGeometry.cSectors - uSector)*512);
645
646	if (pImage->pAllocationBitmap[iIndexInAllocationTable] == 0)
647	rc = VERR_VD_BLOCK_FREE;
648	else
649	{
650	uOffsetInFile = (pImage->pAllocationBitmap[iIndexInAllocationTable] + uSector) * 512;
651	rc = vdIfIoIntFileReadUser(pImage->pIfIo, pImage->pStorage, uOffsetInFile,
652	pIoCtx, cbToRead);
653	}
654	}
655
656	*pcbActuallyRead = cbToRead;
657
658	LogFlowFunc(("returns %Rrc\n", rc));
659	return rc;
660	}
661
662	/** @copydoc VBOXHDDBACKEND::pfnWrite */
663	static DECLCALLBACK(int) parallelsWrite(void *pBackendData, uint64_t uOffset, size_t cbToWrite,
664	PVDIOCTX pIoCtx, size_t pcbWriteProcess, size_t pcbPreRead,
665	size_t *pcbPostRead, unsigned fWrite)
666	{
667	LogFlowFunc(("pBackendData=%#p uOffset=%llu pIoCtx=%#p cbToWrite=%zu pcbWriteProcess=%#p\n",
668	pBackendData, uOffset, pIoCtx, cbToWrite, pcbWriteProcess));
669	int rc = VINF_SUCCESS;
670	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
671	uint64_t uSector;
672	uint64_t uOffsetInFile;
673	uint32_t iIndexInAllocationTable;
674
675	AssertPtr(pImage);
676	Assert(uOffset % 512 == 0);
677	Assert(cbToWrite % 512 == 0);
678
679	if (pImage->uImageFlags & VD_IMAGE_FLAGS_FIXED)
680	rc = vdIfIoIntFileWriteUser(pImage->pIfIo, pImage->pStorage, uOffset,
681	pIoCtx, cbToWrite, NULL, NULL);
682	else
683	{
684	/* Calculate offset in the real file. */
685	uSector = uOffset / 512;
686	/* One chunk in the file is always one track big. */
687	iIndexInAllocationTable = (uint32_t)(uSector / pImage->PCHSGeometry.cSectors);
688	uSector = uSector % pImage->PCHSGeometry.cSectors;
689
690	cbToWrite = RT_MIN(cbToWrite, (pImage->PCHSGeometry.cSectors - uSector)*512);
691
692	if (pImage->pAllocationBitmap[iIndexInAllocationTable] == 0)
693	{
694	if (fWrite & VD_WRITE_NO_ALLOC)
695	{
696	pcbPreRead = uSector 512;
697	pcbPostRead = pImage->PCHSGeometry.cSectors 512 - cbToWrite - *pcbPreRead;
698
699	if (pcbWriteProcess)
700	*pcbWriteProcess = cbToWrite;
701	return VERR_VD_BLOCK_FREE;
702	}
703
704	/* Allocate new chunk in the file. */
705	Assert(uSector == 0);
706	AssertMsg(pImage->cbFileCurrent % 512 == 0, ("File size is not a multiple of 512\n"));
707	pImage->pAllocationBitmap[iIndexInAllocationTable] = (uint32_t)(pImage->cbFileCurrent / 512);
708	pImage->cbFileCurrent += pImage->PCHSGeometry.cSectors * 512;
709	pImage->fAllocationBitmapChanged = true;
710	uOffsetInFile = (uint64_t)pImage->pAllocationBitmap[iIndexInAllocationTable] * 512;
711
712	/*
713	* Write the new block at the current end of the file.
714	*/
715	rc = vdIfIoIntFileWriteUser(pImage->pIfIo, pImage->pStorage,
716	uOffsetInFile, pIoCtx, cbToWrite, NULL, NULL);
717	if (RT_SUCCESS(rc) \|\| (rc == VERR_VD_ASYNC_IO_IN_PROGRESS))
718	{
719	/* Write the changed allocation bitmap entry. */
720	/** @todo: Error handling. */
721	rc = vdIfIoIntFileWriteMeta(pImage->pIfIo, pImage->pStorage,
722	sizeof(ParallelsHeader) + iIndexInAllocationTable * sizeof(uint32_t),
723	&pImage->pAllocationBitmap[iIndexInAllocationTable],
724	sizeof(uint32_t), pIoCtx,
725	NULL, NULL);
726	}
727
728	*pcbPreRead = 0;
729	*pcbPostRead = 0;
730	}
731	else
732	{
733	uOffsetInFile = (pImage->pAllocationBitmap[iIndexInAllocationTable] + uSector) * 512;
734	rc = vdIfIoIntFileWriteUser(pImage->pIfIo, pImage->pStorage,
735	uOffsetInFile, pIoCtx, cbToWrite, NULL, NULL);
736	}
737	}
738
739	if (pcbWriteProcess)
740	*pcbWriteProcess = cbToWrite;
741
742	LogFlowFunc(("returns %Rrc\n", rc));
743	return rc;
744	}
745
746	/** @copydoc VBOXHDDBACKEND::pfnFlush */
747	static DECLCALLBACK(int) parallelsFlush(void *pBackendData, PVDIOCTX pIoCtx)
748	{
749	int rc = VINF_SUCCESS;
750	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
751
752	LogFlowFunc(("pImage=#%p\n", pImage));
753
754	/* Flush the file, everything is up to date already. */
755	rc = vdIfIoIntFileFlush(pImage->pIfIo, pImage->pStorage, pIoCtx, NULL, NULL);
756
757	LogFlowFunc(("returns %Rrc\n", rc));
758	return rc;
759	}
760
761	/** @copydoc VBOXHDDBACKEND::pfnGetVersion */
762	static DECLCALLBACK(unsigned) parallelsGetVersion(void *pBackendData)
763	{
764	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
765	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
766
767	AssertPtr(pImage);
768
769	if (pImage)
770	return PARALLELS_DISK_VERSION;
771	else
772	return 0;
773	}
774
775	/** @copydoc VBOXHDDBACKEND::pfnGetSectorSize */
776	static DECLCALLBACK(uint32_t) parallelsGetSectorSize(void *pBackendData)
777	{
778	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
779	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
780	uint32_t cb = 0;
781
782	AssertPtr(pImage);
783
784	if (pImage && pImage->pStorage)
785	cb = 512;
786
787	LogFlowFunc(("returns %llu\n", cb));
788	return cb;
789	}
790
791	/** @copydoc VBOXHDDBACKEND::pfnGetSize */
792	static DECLCALLBACK(uint64_t) parallelsGetSize(void *pBackendData)
793	{
794	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
795	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
796	uint64_t cb = 0;
797
798	AssertPtr(pImage);
799
800	if (pImage && pImage->pStorage)
801	cb = pImage->cbSize;
802
803	LogFlowFunc(("returns %llu\n", cb));
804	return cb;
805	}
806
807	/** @copydoc VBOXHDDBACKEND::pfnGetFileSize */
808	static DECLCALLBACK(uint64_t) parallelsGetFileSize(void *pBackendData)
809	{
810	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
811	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
812	uint64_t cb = 0;
813
814	AssertPtr(pImage);
815
816	if (pImage && pImage->pStorage)
817	cb = pImage->cbFileCurrent;
818
819	LogFlowFunc(("returns %lld\n", cb));
820	return cb;
821	}
822
823	/** @copydoc VBOXHDDBACKEND::pfnGetPCHSGeometry */
824	static DECLCALLBACK(int) parallelsGetPCHSGeometry(void *pBackendData,
825	PVDGEOMETRY pPCHSGeometry)
826	{
827	LogFlowFunc(("pBackendData=%#p pPCHSGeometry=%#p\n", pBackendData, pPCHSGeometry));
828	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
829	int rc;
830
831	AssertPtr(pImage);
832
833	if (pImage)
834	{
835	if (pImage->PCHSGeometry.cCylinders)
836	{
837	*pPCHSGeometry = pImage->PCHSGeometry;
838	rc = VINF_SUCCESS;
839	}
840	else
841	rc = VERR_VD_GEOMETRY_NOT_SET;
842	}
843	else
844	rc = VERR_VD_NOT_OPENED;
845
846	LogFlowFunc(("returns %Rrc (PCHS=%u/%u/%u)\n", rc, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));
847	return rc;
848	}
849
850	/** @copydoc VBOXHDDBACKEND::pfnSetPCHSGeometry */
851	static DECLCALLBACK(int) parallelsSetPCHSGeometry(void *pBackendData,
852	PCVDGEOMETRY pPCHSGeometry)
853	{
854	LogFlowFunc(("pBackendData=%#p pPCHSGeometry=%#p PCHS=%u/%u/%u\n", pBackendData, pPCHSGeometry, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));
855	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
856	int rc;
857
858	AssertPtr(pImage);
859
860	if (pImage)
861	{
862	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
863	{
864	rc = VERR_VD_IMAGE_READ_ONLY;
865	goto out;
866	}
867
868	pImage->PCHSGeometry = *pPCHSGeometry;
869	rc = VINF_SUCCESS;
870	}
871	else
872	rc = VERR_VD_NOT_OPENED;
873
874	out:
875	LogFlowFunc(("returns %Rrc\n", rc));
876	return rc;
877	}
878
879	/** @copydoc VBOXHDDBACKEND::pfnGetLCHSGeometry */
880	static DECLCALLBACK(int) parallelsGetLCHSGeometry(void *pBackendData,
881	PVDGEOMETRY pLCHSGeometry)
882	{
883	LogFlowFunc(("pBackendData=%#p pLCHSGeometry=%#p\n", pBackendData, pLCHSGeometry));
884	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
885	int rc;
886
887	AssertPtr(pImage);
888
889	if (pImage)
890	{
891	if (pImage->LCHSGeometry.cCylinders)
892	{
893	*pLCHSGeometry = pImage->LCHSGeometry;
894	rc = VINF_SUCCESS;
895	}
896	else
897	rc = VERR_VD_GEOMETRY_NOT_SET;
898	}
899	else
900	rc = VERR_VD_NOT_OPENED;
901
902	LogFlowFunc(("returns %Rrc (LCHS=%u/%u/%u)\n", rc, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
903	return rc;
904	}
905
906	/** @copydoc VBOXHDDBACKEND::pfnSetLCHSGeometry */
907	static DECLCALLBACK(int) parallelsSetLCHSGeometry(void *pBackendData,
908	PCVDGEOMETRY pLCHSGeometry)
909	{
910	LogFlowFunc(("pBackendData=%#p pLCHSGeometry=%#p LCHS=%u/%u/%u\n", pBackendData, pLCHSGeometry, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
911	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
912	int rc;
913
914	AssertPtr(pImage);
915
916	if (pImage)
917	{
918	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
919	{
920	rc = VERR_VD_IMAGE_READ_ONLY;
921	goto out;
922	}
923
924	pImage->LCHSGeometry = *pLCHSGeometry;
925	rc = VINF_SUCCESS;
926	}
927	else
928	rc = VERR_VD_NOT_OPENED;
929
930	out:
931	LogFlowFunc(("returns %Rrc\n", rc));
932	return rc;
933	}
934
935	/** @copydoc VBOXHDDBACKEND::pfnGetImageFlags */
936	static DECLCALLBACK(unsigned) parallelsGetImageFlags(void *pBackendData)
937	{
938	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
939	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
940	unsigned uImageFlags;
941
942	AssertPtr(pImage);
943
944	if (pImage)
945	uImageFlags = pImage->uImageFlags;
946	else
947	uImageFlags = 0;
948
949	LogFlowFunc(("returns %#x\n", uImageFlags));
950	return uImageFlags;
951	}
952
953	/** @copydoc VBOXHDDBACKEND::pfnGetOpenFlags */
954	static DECLCALLBACK(unsigned) parallelsGetOpenFlags(void *pBackendData)
955	{
956	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
957	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
958	unsigned uOpenFlags;
959
960	AssertPtr(pImage);
961
962	if (pImage)
963	uOpenFlags = pImage->uOpenFlags;
964	else
965	uOpenFlags = 0;
966
967	LogFlowFunc(("returns %#x\n", uOpenFlags));
968	return uOpenFlags;
969	}
970
971	/** @copydoc VBOXHDDBACKEND::pfnSetOpenFlags */
972	static DECLCALLBACK(int) parallelsSetOpenFlags(void *pBackendData, unsigned uOpenFlags)
973	{
974	LogFlowFunc(("pBackendData=%#p\n uOpenFlags=%#x", pBackendData, uOpenFlags));
975	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
976	int rc;
977
978	/* Image must be opened and the new flags must be valid. */
979	if (!pImage \|\| (uOpenFlags & ~( VD_OPEN_FLAGS_READONLY \| VD_OPEN_FLAGS_INFO
980	\| VD_OPEN_FLAGS_ASYNC_IO \| VD_OPEN_FLAGS_SHAREABLE
981	\| VD_OPEN_FLAGS_SEQUENTIAL \| VD_OPEN_FLAGS_SKIP_CONSISTENCY_CHECKS)))
982	{
983	rc = VERR_INVALID_PARAMETER;
984	goto out;
985	}
986
987	/* Implement this operation via reopening the image. */
988	parallelsFreeImage(pImage, false);
989	rc = parallelsOpenImage(pImage, uOpenFlags);
990
991	out:
992	LogFlowFunc(("returns %Rrc\n", rc));
993	return rc;
994	}
995
996	/** @copydoc VBOXHDDBACKEND::pfnGetComment */
997	static DECLCALLBACK(int) parallelsGetComment(void pBackendData, char pszComment,
998	size_t cbComment)
999	{
1000	LogFlowFunc(("pBackendData=%#p pszComment=%#p cbComment=%zu\n", pBackendData, pszComment, cbComment));
1001	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1002	int rc;
1003
1004	AssertPtr(pImage);
1005
1006	if (pImage)
1007	rc = VERR_NOT_SUPPORTED;
1008	else
1009	rc = VERR_VD_NOT_OPENED;
1010
1011	LogFlowFunc(("returns %Rrc comment='%s'\n", rc, pszComment));
1012	return rc;
1013	}
1014
1015	/** @copydoc VBOXHDDBACKEND::pfnSetComment */
1016	static DECLCALLBACK(int) parallelsSetComment(void pBackendData, const char pszComment)
1017	{
1018	LogFlowFunc(("pBackendData=%#p pszComment=\"%s\"\n", pBackendData, pszComment));
1019	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1020	int rc;
1021
1022	AssertPtr(pImage);
1023
1024	if (pImage)
1025	{
1026	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
1027	rc = VERR_VD_IMAGE_READ_ONLY;
1028	else
1029	rc = VERR_NOT_SUPPORTED;
1030	}
1031	else
1032	rc = VERR_VD_NOT_OPENED;
1033
1034	LogFlowFunc(("returns %Rrc\n", rc));
1035	return rc;
1036	}
1037
1038	/** @copydoc VBOXHDDBACKEND::pfnGetUuid */
1039	static DECLCALLBACK(int) parallelsGetUuid(void *pBackendData, PRTUUID pUuid)
1040	{
1041	LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
1042	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1043	int rc;
1044
1045	AssertPtr(pImage);
1046
1047	if (pImage)
1048	rc = VERR_NOT_SUPPORTED;
1049	else
1050	rc = VERR_VD_NOT_OPENED;
1051
1052	LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
1053	return rc;
1054	}
1055
1056	/** @copydoc VBOXHDDBACKEND::pfnSetUuid */
1057	static DECLCALLBACK(int) parallelsSetUuid(void *pBackendData, PCRTUUID pUuid)
1058	{
1059	LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
1060	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1061	int rc;
1062
1063	AssertPtr(pImage);
1064
1065	if (pImage)
1066	{
1067	if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
1068	rc = VERR_NOT_SUPPORTED;
1069	else
1070	rc = VERR_VD_IMAGE_READ_ONLY;
1071	}
1072	else
1073	rc = VERR_VD_NOT_OPENED;
1074
1075	LogFlowFunc(("returns %Rrc\n", rc));
1076	return rc;
1077	}
1078
1079	/** @copydoc VBOXHDDBACKEND::pfnGetModificationUuid */
1080	static DECLCALLBACK(int) parallelsGetModificationUuid(void *pBackendData, PRTUUID pUuid)
1081	{
1082	LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
1083	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1084	int rc;
1085
1086	AssertPtr(pImage);
1087
1088	if (pImage)
1089	rc = VERR_NOT_SUPPORTED;
1090	else
1091	rc = VERR_VD_NOT_OPENED;
1092
1093	LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
1094	return rc;
1095	}
1096
1097	/** @copydoc VBOXHDDBACKEND::pfnSetModificationUuid */
1098	static DECLCALLBACK(int) parallelsSetModificationUuid(void *pBackendData, PCRTUUID pUuid)
1099	{
1100	LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
1101	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1102	int rc;
1103
1104	AssertPtr(pImage);
1105
1106	if (pImage)
1107	{
1108	if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
1109	rc = VERR_NOT_SUPPORTED;
1110	else
1111	rc = VERR_VD_IMAGE_READ_ONLY;
1112	}
1113	else
1114	rc = VERR_VD_NOT_OPENED;
1115
1116	LogFlowFunc(("returns %Rrc\n", rc));
1117	return rc;
1118	}
1119
1120	/** @copydoc VBOXHDDBACKEND::pfnGetParentUuid */
1121	static DECLCALLBACK(int) parallelsGetParentUuid(void *pBackendData, PRTUUID pUuid)
1122	{
1123	LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
1124	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1125	int rc;
1126
1127	AssertPtr(pImage);
1128
1129	if (pImage)
1130	rc = VERR_NOT_SUPPORTED;
1131	else
1132	rc = VERR_VD_NOT_OPENED;
1133
1134	LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
1135	return rc;
1136	}
1137
1138	/** @copydoc VBOXHDDBACKEND::pfnSetParentUuid */
1139	static DECLCALLBACK(int) parallelsSetParentUuid(void *pBackendData, PCRTUUID pUuid)
1140	{
1141	LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
1142	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1143	int rc;
1144
1145	AssertPtr(pImage);
1146
1147	if (pImage)
1148	{
1149	if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
1150	rc = VERR_NOT_SUPPORTED;
1151	else
1152	rc = VERR_VD_IMAGE_READ_ONLY;
1153	}
1154	else
1155	rc = VERR_VD_NOT_OPENED;
1156
1157	LogFlowFunc(("returns %Rrc\n", rc));
1158	return rc;
1159	}
1160
1161	/** @copydoc VBOXHDDBACKEND::pfnGetParentModificationUuid */
1162	static DECLCALLBACK(int) parallelsGetParentModificationUuid(void *pBackendData, PRTUUID pUuid)
1163	{
1164	LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
1165	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1166	int rc;
1167
1168	AssertPtr(pImage);
1169
1170	if (pImage)
1171	rc = VERR_NOT_SUPPORTED;
1172	else
1173	rc = VERR_VD_NOT_OPENED;
1174
1175	LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
1176	return rc;
1177	}
1178
1179	/** @copydoc VBOXHDDBACKEND::pfnSetParentModificationUuid */
1180	static DECLCALLBACK(int) parallelsSetParentModificationUuid(void *pBackendData, PCRTUUID pUuid)
1181	{
1182	LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
1183	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1184	int rc;
1185
1186	AssertPtr(pImage);
1187
1188	if (pImage)
1189	{
1190	if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
1191	rc = VERR_NOT_SUPPORTED;
1192	else
1193	rc = VERR_VD_IMAGE_READ_ONLY;
1194	}
1195	else
1196	rc = VERR_VD_NOT_OPENED;
1197
1198	LogFlowFunc(("returns %Rrc\n", rc));
1199	return rc;
1200	}
1201
1202	/** @copydoc VBOXHDDBACKEND::pfnDump */
1203	static DECLCALLBACK(void) parallelsDump(void *pBackendData)
1204	{
1205	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1206
1207	AssertPtr(pImage);
1208	if (pImage)
1209	{
1210	vdIfErrorMessage(pImage->pIfError, "Header: Geometry PCHS=%u/%u/%u LCHS=%u/%u/%u\n",
1211	pImage->PCHSGeometry.cCylinders, pImage->PCHSGeometry.cHeads, pImage->PCHSGeometry.cSectors,
1212	pImage->LCHSGeometry.cCylinders, pImage->LCHSGeometry.cHeads, pImage->LCHSGeometry.cSectors);
1213	}
1214	}
1215
1216
1217
1218	const VBOXHDDBACKEND g_ParallelsBackend =
1219	{
1220	/* pszBackendName */
1221	"Parallels",
1222	/* cbSize */
1223	sizeof(VBOXHDDBACKEND),
1224	/* uBackendCaps */
1225	VD_CAP_FILE \| VD_CAP_ASYNC \| VD_CAP_VFS \| VD_CAP_CREATE_DYNAMIC \| VD_CAP_DIFF,
1226	/* paFileExtensions */
1227	s_aParallelsFileExtensions,
1228	/* paConfigInfo */
1229	NULL,
1230	/* pfnCheckIfValid */
1231	parallelsCheckIfValid,
1232	/* pfnOpen */
1233	parallelsOpen,
1234	/* pfnCreate */
1235	parallelsCreate,
1236	/* pfnRename */
1237	parallelsRename,
1238	/* pfnClose */
1239	parallelsClose,
1240	/* pfnRead */
1241	parallelsRead,
1242	/* pfnWrite */
1243	parallelsWrite,
1244	/* pfnFlush */
1245	parallelsFlush,
1246	/* pfnDiscard */
1247	NULL,
1248	/* pfnGetVersion */
1249	parallelsGetVersion,
1250	/* pfnGetSectorSize */
1251	parallelsGetSectorSize,
1252	/* pfnGetSize */
1253	parallelsGetSize,
1254	/* pfnGetFileSize */
1255	parallelsGetFileSize,
1256	/* pfnGetPCHSGeometry */
1257	parallelsGetPCHSGeometry,
1258	/* pfnSetPCHSGeometry */
1259	parallelsSetPCHSGeometry,
1260	/* pfnGetLCHSGeometry */
1261	parallelsGetLCHSGeometry,
1262	/* pfnSetLCHSGeometry */
1263	parallelsSetLCHSGeometry,
1264	/* pfnGetImageFlags */
1265	parallelsGetImageFlags,
1266	/* pfnGetOpenFlags */
1267	parallelsGetOpenFlags,
1268	/* pfnSetOpenFlags */
1269	parallelsSetOpenFlags,
1270	/* pfnGetComment */
1271	parallelsGetComment,
1272	/* pfnSetComment */
1273	parallelsSetComment,
1274	/* pfnGetUuid */
1275	parallelsGetUuid,
1276	/* pfnSetUuid */
1277	parallelsSetUuid,
1278	/* pfnGetModificationUuid */
1279	parallelsGetModificationUuid,
1280	/* pfnSetModificationUuid */
1281	parallelsSetModificationUuid,
1282	/* pfnGetParentUuid */
1283	parallelsGetParentUuid,
1284	/* pfnSetParentUuid */
1285	parallelsSetParentUuid,
1286	/* pfnGetParentModificationUuid */
1287	parallelsGetParentModificationUuid,
1288	/* pfnSetParentModificationUuid */
1289	parallelsSetParentModificationUuid,
1290	/* pfnDump */
1291	parallelsDump,
1292	/* pfnGetTimestamp */
1293	NULL,
1294	/* pfnGetParentTimestamp */
1295	NULL,
1296	/* pfnSetParentTimestamp */
1297	NULL,
1298	/* pfnGetParentFilename */
1299	NULL,
1300	/* pfnSetParentFilename */
1301	NULL,
1302	/* pfnComposeLocation */
1303	genericFileComposeLocation,
1304	/* pfnComposeName */
1305	genericFileComposeName,
1306	/* pfnCompact */
1307	NULL,
1308	/* pfnResize */
1309	NULL,
1310	/* pfnRepair */
1311	NULL,
1312	/* pfnTraverseMetadata */
1313	NULL
1314	};

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source: vbox/trunk/src/VBox/Storage/Parallels.cpp@ 61202

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