Parallels.cpp@ 44794

Last change on this file since 44794 was 44528, checked in by vboxsync, 12 years ago
header (C) fixes
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1	/* $Id: Parallels.cpp 44528 2013-02-04 14:27:54Z 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	#define PARALLELS_HEADER_MAGIC "WithoutFreeSpace"
32	#define PARALLELS_DISK_VERSION 2
33
34	/** The header of the parallels disk. */
35	#pragma pack(1)
36	typedef struct ParallelsHeader
37	{
38	/** The magic header to identify a parallels hdd image. */
39	char HeaderIdentifier[16];
40	/** The version of the disk image. */
41	uint32_t uVersion;
42	/** The number of heads the hdd has. */
43	uint32_t cHeads;
44	/** Number of cylinders. */
45	uint32_t cCylinders;
46	/** Number of sectors per track. */
47	uint32_t cSectorsPerTrack;
48	/** Number of entries in the allocation bitmap. */
49	uint32_t cEntriesInAllocationBitmap;
50	/** Total number of sectors. */
51	uint32_t cSectors;
52	/** Padding. */
53	char Padding[24];
54	} ParallelsHeader;
55	#pragma pack()
56
57	/**
58	* Parallels image structure.
59	*/
60	typedef struct PARALLELSIMAGE
61	{
62	/** Image file name. */
63	const char *pszFilename;
64	/** Opaque storage handle. */
65	PVDIOSTORAGE pStorage;
66
67	/** Pointer to the per-disk VD interface list. */
68	PVDINTERFACE pVDIfsDisk;
69	/** Pointer to the per-image VD interface list. */
70	PVDINTERFACE pVDIfsImage;
71	/** Error interface. */
72	PVDINTERFACEERROR pIfError;
73	/** I/O interface. */
74	PVDINTERFACEIOINT pIfIo;
75
76	/** Open flags passed by VBoxHDD layer. */
77	unsigned uOpenFlags;
78	/** Image flags defined during creation or determined during open. */
79	unsigned uImageFlags;
80	/** Total size of the image. */
81	uint64_t cbSize;
82
83	/** Physical geometry of this image. */
84	VDGEOMETRY PCHSGeometry;
85	/** Logical geometry of this image. */
86	VDGEOMETRY LCHSGeometry;
87
88	/** Pointer to the allocation bitmap. */
89	uint32_t *pAllocationBitmap;
90	/** Entries in the allocation bitmap. */
91	uint64_t cAllocationBitmapEntries;
92	/** Flag whether the allocation bitmap was changed. */
93	bool fAllocationBitmapChanged;
94	/** Current file size. */
95	uint64_t cbFileCurrent;
96	} PARALLELSIMAGE, *PPARALLELSIMAGE;
97
98	/*******************************************************************************
99	* Static Variables *
100	*******************************************************************************/
101
102	/** NULL-terminated array of supported file extensions. */
103	static const VDFILEEXTENSION s_aParallelsFileExtensions[] =
104	{
105	{"hdd", VDTYPE_HDD},
106	{NULL, VDTYPE_INVALID}
107	};
108
109	/***************************************************
110	* Internal functions *
111	**************************************************/
112
113	/**
114	* Internal. Flush image data to disk.
115	*/
116	static int parallelsFlushImage(PPARALLELSIMAGE pImage)
117	{
118	int rc = VINF_SUCCESS;
119
120	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
121	return VINF_SUCCESS;
122
123	if ( !(pImage->uImageFlags & VD_IMAGE_FLAGS_FIXED)
124	&& (pImage->fAllocationBitmapChanged))
125	{
126	pImage->fAllocationBitmapChanged = false;
127	/* Write the allocation bitmap to the file. */
128	rc = vdIfIoIntFileWriteSync(pImage->pIfIo, pImage->pStorage,
129	sizeof(ParallelsHeader), pImage->pAllocationBitmap,
130	pImage->cAllocationBitmapEntries * sizeof(uint32_t));
131	if (RT_FAILURE(rc))
132	return rc;
133	}
134
135	/* Flush file. */
136	rc = vdIfIoIntFileFlushSync(pImage->pIfIo, pImage->pStorage);
137
138	LogFlowFunc(("returns %Rrc\n", rc));
139	return rc;
140	}
141
142	/**
143	* Internal. Free all allocated space for representing an image except pImage,
144	* and optionally delete the image from disk.
145	*/
146	static int parallelsFreeImage(PPARALLELSIMAGE pImage, bool fDelete)
147	{
148	int rc = VINF_SUCCESS;
149
150	/* Freeing a never allocated image (e.g. because the open failed) is
151	* not signalled as an error. After all nothing bad happens. */
152	if (pImage)
153	{
154	if (pImage->pStorage)
155	{
156	/* No point updating the file that is deleted anyway. */
157	if (!fDelete)
158	parallelsFlushImage(pImage);
159
160	vdIfIoIntFileClose(pImage->pIfIo, pImage->pStorage);
161	pImage->pStorage = NULL;
162	}
163
164	if (pImage->pAllocationBitmap)
165	{
166	RTMemFree(pImage->pAllocationBitmap);
167	pImage->pAllocationBitmap = NULL;
168	}
169
170	if (fDelete && pImage->pszFilename)
171	vdIfIoIntFileDelete(pImage->pIfIo, pImage->pszFilename);
172	}
173
174	return rc;
175	}
176
177	static int parallelsOpenImage(PPARALLELSIMAGE pImage, unsigned uOpenFlags)
178	{
179	int rc = VINF_SUCCESS;
180	ParallelsHeader parallelsHeader;
181
182	pImage->pIfError = VDIfErrorGet(pImage->pVDIfsDisk);
183	pImage->pIfIo = VDIfIoIntGet(pImage->pVDIfsImage);
184	AssertPtrReturn(pImage->pIfIo, VERR_INVALID_PARAMETER);
185
186	rc = vdIfIoIntFileOpen(pImage->pIfIo, pImage->pszFilename,
187	VDOpenFlagsToFileOpenFlags(uOpenFlags,
188	false /* fCreate */),
189	&pImage->pStorage);
190	if (RT_FAILURE(rc))
191	goto out;
192
193	rc = vdIfIoIntFileGetSize(pImage->pIfIo, pImage->pStorage, &pImage->cbFileCurrent);
194	if (RT_FAILURE(rc))
195	goto out;
196	AssertMsg(pImage->cbFileCurrent % 512 == 0, ("File size is not a multiple of 512\n"));
197
198	rc = vdIfIoIntFileReadSync(pImage->pIfIo, pImage->pStorage, 0,
199	&parallelsHeader, sizeof(parallelsHeader));
200	if (RT_FAILURE(rc))
201	goto out;
202
203	if (memcmp(parallelsHeader.HeaderIdentifier, PARALLELS_HEADER_MAGIC, 16))
204	{
205	/* Check if the file has hdd as extension. It is a fixed size raw image then. */
206	char *pszExtension = RTPathExt(pImage->pszFilename);
207	if (strcmp(pszExtension, ".hdd"))
208	{
209	rc = VERR_VD_PARALLELS_INVALID_HEADER;
210	goto out;
211	}
212
213	/* This is a fixed size image. */
214	pImage->uImageFlags \|= VD_IMAGE_FLAGS_FIXED;
215	pImage->cbSize = pImage->cbFileCurrent;
216
217	pImage->PCHSGeometry.cHeads = 16;
218	pImage->PCHSGeometry.cSectors = 63;
219	uint64_t cCylinders = pImage->cbSize / (512 * pImage->PCHSGeometry.cSectors * pImage->PCHSGeometry.cHeads);
220	pImage->PCHSGeometry.cCylinders = (uint32_t)cCylinders;
221	}
222	else
223	{
224	if (parallelsHeader.uVersion != PARALLELS_DISK_VERSION)
225	{
226	rc = VERR_NOT_SUPPORTED;
227	goto out;
228	}
229
230	if (parallelsHeader.cEntriesInAllocationBitmap > (1 << 30))
231	{
232	rc = VERR_NOT_SUPPORTED;
233	goto out;
234	}
235
236	Log(("cSectors=%u\n", parallelsHeader.cSectors));
237	pImage->cbSize = ((uint64_t)parallelsHeader.cSectors) * 512;
238	pImage->uImageFlags = VD_IMAGE_FLAGS_NONE;
239	pImage->cAllocationBitmapEntries = parallelsHeader.cEntriesInAllocationBitmap;
240	pImage->pAllocationBitmap = (uint32_t )RTMemAllocZ((uint32_t)pImage->cAllocationBitmapEntries sizeof(uint32_t));
241	if (!pImage->pAllocationBitmap)
242	{
243	rc = VERR_NO_MEMORY;
244	goto out;
245	}
246
247	rc = vdIfIoIntFileReadSync(pImage->pIfIo, pImage->pStorage,
248	sizeof(ParallelsHeader), pImage->pAllocationBitmap,
249	pImage->cAllocationBitmapEntries * sizeof(uint32_t));
250	if (RT_FAILURE(rc))
251	goto out;
252
253	pImage->PCHSGeometry.cCylinders = parallelsHeader.cCylinders;
254	pImage->PCHSGeometry.cHeads = parallelsHeader.cHeads;
255	pImage->PCHSGeometry.cSectors = parallelsHeader.cSectorsPerTrack;
256	}
257
258	out:
259	LogFlowFunc(("returns %Rrc\n", rc));
260	return rc;
261	}
262
263	/**
264	* Internal: Create a parallels image.
265	*/
266	static int parallelsCreateImage(PPARALLELSIMAGE pImage, uint64_t cbSize,
267	unsigned uImageFlags, const char *pszComment,
268	PCVDGEOMETRY pPCHSGeometry,
269	PCVDGEOMETRY pLCHSGeometry, unsigned uOpenFlags,
270	PFNVDPROGRESS pfnProgress, void *pvUser,
271	unsigned uPercentStart, unsigned uPercentSpan)
272	{
273	int rc = VINF_SUCCESS;
274	int32_t fOpen;
275
276	if (uImageFlags & VD_IMAGE_FLAGS_FIXED)
277	{
278	rc = vdIfError(pImage->pIfError, VERR_VD_INVALID_TYPE, RT_SRC_POS, N_("Parallels: cannot create fixed image '%s'. Create a raw image"), pImage->pszFilename);
279	goto out;
280	}
281
282	pImage->uOpenFlags = uOpenFlags & ~VD_OPEN_FLAGS_READONLY;
283	pImage->uImageFlags = uImageFlags;
284	pImage->PCHSGeometry = *pPCHSGeometry;
285	pImage->LCHSGeometry = *pLCHSGeometry;
286
287	if (!pImage->PCHSGeometry.cCylinders)
288	{
289	/* Set defaults. */
290	pImage->PCHSGeometry.cSectors = 63;
291	pImage->PCHSGeometry.cHeads = 16;
292	pImage->PCHSGeometry.cCylinders = pImage->cbSize / (512 * pImage->PCHSGeometry.cSectors * pImage->PCHSGeometry.cHeads);
293	}
294
295	pImage->pIfError = VDIfErrorGet(pImage->pVDIfsDisk);
296	pImage->pIfIo = VDIfIoIntGet(pImage->pVDIfsImage);
297	AssertPtrReturn(pImage->pIfIo, VERR_INVALID_PARAMETER);
298
299	/* Create image file. */
300	fOpen = VDOpenFlagsToFileOpenFlags(pImage->uOpenFlags, true /* fCreate */);
301	rc = vdIfIoIntFileOpen(pImage->pIfIo, pImage->pszFilename, fOpen, &pImage->pStorage);
302	if (RT_FAILURE(rc))
303	{
304	rc = vdIfError(pImage->pIfError, rc, RT_SRC_POS, N_("Parallels: cannot create image '%s'"), pImage->pszFilename);
305	goto out;
306	}
307
308	if (RT_SUCCESS(rc) && pfnProgress)
309	pfnProgress(pvUser, uPercentStart + uPercentSpan * 98 / 100);
310
311	/* Setup image state. */
312	pImage->cbSize = cbSize;
313	pImage->cAllocationBitmapEntries = cbSize / 512 / pImage->PCHSGeometry.cSectors;
314	if (pImage->cAllocationBitmapEntries * pImage->PCHSGeometry.cSectors * 512 < cbSize)
315	pImage->cAllocationBitmapEntries++;
316	pImage->fAllocationBitmapChanged = true;
317	pImage->cbFileCurrent = sizeof(ParallelsHeader) + pImage->cAllocationBitmapEntries * sizeof(uint32_t);
318	/* Round to next sector boundary. */
319	pImage->cbFileCurrent += 512 - pImage->cbFileCurrent % 512;
320	Assert(!(pImage->cbFileCurrent % 512));
321	pImage->pAllocationBitmap = (uint32_t )RTMemAllocZ(pImage->cAllocationBitmapEntries sizeof(uint32_t));
322	if (!pImage->pAllocationBitmap)
323	rc = VERR_NO_MEMORY;
324
325	if (RT_SUCCESS(rc))
326	{
327	ParallelsHeader Header;
328
329	memcpy(Header.HeaderIdentifier, PARALLELS_HEADER_MAGIC, sizeof(Header.HeaderIdentifier));
330	Header.uVersion = RT_H2LE_U32(PARALLELS_DISK_VERSION);
331	Header.cHeads = RT_H2LE_U32(pImage->PCHSGeometry.cHeads);
332	Header.cCylinders = RT_H2LE_U32(pImage->PCHSGeometry.cCylinders);
333	Header.cSectorsPerTrack = RT_H2LE_U32(pImage->PCHSGeometry.cSectors);
334	Header.cEntriesInAllocationBitmap = RT_H2LE_U32(pImage->cAllocationBitmapEntries);
335	Header.cSectors = RT_H2LE_U32(pImage->cbSize / 512);
336	memset(Header.Padding, 0, sizeof(Header.Padding));
337
338	/* Write header and allocation bitmap. */
339	rc = vdIfIoIntFileSetSize(pImage->pIfIo, pImage->pStorage, pImage->cbFileCurrent);
340	if (RT_SUCCESS(rc))
341	rc = vdIfIoIntFileWriteSync(pImage->pIfIo, pImage->pStorage, 0,
342	&Header, sizeof(Header));
343	if (RT_SUCCESS(rc))
344	rc = parallelsFlushImage(pImage); /* Writes the allocation bitmap. */
345	}
346
347	out:
348	if (RT_SUCCESS(rc) && pfnProgress)
349	pfnProgress(pvUser, uPercentStart + uPercentSpan);
350
351	if (RT_FAILURE(rc))
352	parallelsFreeImage(pImage, rc != VERR_ALREADY_EXISTS);
353	return rc;
354	}
355
356	/** @copydoc VBOXHDDBACKEND::pfnCheckIfValid */
357	static int parallelsCheckIfValid(const char *pszFilename, PVDINTERFACE pVDIfsDisk,
358	PVDINTERFACE pVDIfsImage, VDTYPE *penmType)
359	{
360	int rc;
361	PVDIOSTORAGE pStorage;
362	ParallelsHeader parallelsHeader;
363
364	PVDINTERFACEIOINT pIfIo = VDIfIoIntGet(pVDIfsImage);
365	AssertPtrReturn(pIfIo, VERR_INVALID_PARAMETER);
366
367	rc = vdIfIoIntFileOpen(pIfIo, pszFilename,
368	VDOpenFlagsToFileOpenFlags(VD_OPEN_FLAGS_READONLY,
369	false /* fCreate */),
370	&pStorage);
371	if (RT_FAILURE(rc))
372	return rc;
373
374	rc = vdIfIoIntFileReadSync(pIfIo, pStorage, 0, &parallelsHeader,
375	sizeof(ParallelsHeader));
376	if (RT_SUCCESS(rc))
377	{
378	if ( !memcmp(parallelsHeader.HeaderIdentifier, PARALLELS_HEADER_MAGIC, 16)
379	&& (parallelsHeader.uVersion == PARALLELS_DISK_VERSION))
380	rc = VINF_SUCCESS;
381	else
382	{
383	/*
384	* The image may be an fixed size image.
385	* Unfortunately fixed sized parallels images
386	* are just raw files hence no magic header to
387	* check for.
388	* The code succeeds if the file is a multiple
389	* of 512 and if the file extensions is *.hdd
390	*/
391	uint64_t cbFile;
392	char *pszExtension;
393
394	rc = vdIfIoIntFileGetSize(pIfIo, pStorage, &cbFile);
395	if (RT_FAILURE(rc) \|\| ((cbFile % 512) != 0))
396	{
397	vdIfIoIntFileClose(pIfIo, pStorage);
398	return VERR_VD_PARALLELS_INVALID_HEADER;
399	}
400
401	pszExtension = RTPathExt(pszFilename);
402	if (!pszExtension \|\| strcmp(pszExtension, ".hdd"))
403	rc = VERR_VD_PARALLELS_INVALID_HEADER;
404	else
405	rc = VINF_SUCCESS;
406	}
407	}
408
409	if (RT_SUCCESS(rc))
410	*penmType = VDTYPE_HDD;
411
412	vdIfIoIntFileClose(pIfIo, pStorage);
413	return rc;
414	}
415
416	/** @copydoc VBOXHDDBACKEND::pfnOpen */
417	static int parallelsOpen(const char *pszFilename, unsigned uOpenFlags,
418	PVDINTERFACE pVDIfsDisk, PVDINTERFACE pVDIfsImage,
419	VDTYPE enmType, void **ppBackendData)
420	{
421	LogFlowFunc(("pszFilename=\"%s\" uOpenFlags=%#x pVDIfsDisk=%#p pVDIfsImage=%#p ppBackendData=%#p\n", pszFilename, uOpenFlags, pVDIfsDisk, pVDIfsImage, ppBackendData));
422	int rc;
423	PPARALLELSIMAGE pImage;
424
425	/* Check open flags. All valid flags are supported. */
426	if (uOpenFlags & ~VD_OPEN_FLAGS_MASK)
427	{
428	rc = VERR_INVALID_PARAMETER;
429	goto out;
430	}
431
432	/* Check remaining arguments. */
433	if ( !VALID_PTR(pszFilename)
434	\|\| !*pszFilename)
435	{
436	rc = VERR_INVALID_PARAMETER;
437	goto out;
438	}
439
440	pImage = (PPARALLELSIMAGE)RTMemAllocZ(sizeof(PARALLELSIMAGE));
441	if (!pImage)
442	{
443	rc = VERR_NO_MEMORY;
444	goto out;
445	}
446
447	pImage->pszFilename = pszFilename;
448	pImage->pStorage = NULL;
449	pImage->pVDIfsDisk = pVDIfsDisk;
450	pImage->pVDIfsImage = pVDIfsImage;
451	pImage->fAllocationBitmapChanged = false;
452
453	rc = parallelsOpenImage(pImage, uOpenFlags);
454	if (RT_SUCCESS(rc))
455	*ppBackendData = pImage;
456	else
457	RTMemFree(pImage);
458
459	out:
460	LogFlowFunc(("returns %Rrc (pBackendData=%#p)\n", rc, *ppBackendData));
461	return rc;
462	}
463
464	/** @copydoc VBOXHDDBACKEND::pfnCreate */
465	static int parallelsCreate(const char *pszFilename, uint64_t cbSize,
466	unsigned uImageFlags, const char *pszComment,
467	PCVDGEOMETRY pPCHSGeometry,
468	PCVDGEOMETRY pLCHSGeometry, PCRTUUID pUuid,
469	unsigned uOpenFlags, unsigned uPercentStart,
470	unsigned uPercentSpan, PVDINTERFACE pVDIfsDisk,
471	PVDINTERFACE pVDIfsImage,
472	PVDINTERFACE pVDIfsOperation, void **ppBackendData)
473	{
474	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",
475	pszFilename, cbSize, uImageFlags, pszComment, pPCHSGeometry, pLCHSGeometry, pUuid, uOpenFlags, uPercentStart, uPercentSpan, pVDIfsDisk, pVDIfsImage, pVDIfsOperation, ppBackendData));
476	int rc = VINF_SUCCESS;
477	PPARALLELSIMAGE pImage;
478
479	PFNVDPROGRESS pfnProgress = NULL;
480	void *pvUser = NULL;
481	PVDINTERFACEPROGRESS pIfProgress = VDIfProgressGet(pVDIfsOperation);
482	if (pIfProgress)
483	{
484	pfnProgress = pIfProgress->pfnProgress;
485	pvUser = pIfProgress->Core.pvUser;
486	}
487
488	/* Check open flags. All valid flags are supported. */
489	if (uOpenFlags & ~VD_OPEN_FLAGS_MASK)
490	{
491	rc = VERR_INVALID_PARAMETER;
492	goto out;
493	}
494
495	/* Check remaining arguments. */
496	if ( !VALID_PTR(pszFilename)
497	\|\| !*pszFilename
498	\|\| !VALID_PTR(pPCHSGeometry)
499	\|\| !VALID_PTR(pLCHSGeometry))
500	{
501	rc = VERR_INVALID_PARAMETER;
502	goto out;
503	}
504
505	pImage = (PPARALLELSIMAGE)RTMemAllocZ(sizeof(PARALLELSIMAGE));
506	if (!pImage)
507	{
508	rc = VERR_NO_MEMORY;
509	goto out;
510	}
511	pImage->pszFilename = pszFilename;
512	pImage->pStorage = NULL;
513	pImage->pVDIfsDisk = pVDIfsDisk;
514	pImage->pVDIfsImage = pVDIfsImage;
515
516	rc = parallelsCreateImage(pImage, cbSize, uImageFlags, pszComment,
517	pPCHSGeometry, pLCHSGeometry, uOpenFlags,
518	pfnProgress, pvUser, uPercentStart, uPercentSpan);
519	if (RT_SUCCESS(rc))
520	{
521	/* So far the image is opened in read/write mode. Make sure the
522	* image is opened in read-only mode if the caller requested that. */
523	if (uOpenFlags & VD_OPEN_FLAGS_READONLY)
524	{
525	parallelsFreeImage(pImage, false);
526	rc = parallelsOpenImage(pImage, uOpenFlags);
527	if (RT_FAILURE(rc))
528	{
529	RTMemFree(pImage);
530	goto out;
531	}
532	}
533	*ppBackendData = pImage;
534	}
535	else
536	RTMemFree(pImage);
537
538	out:
539	LogFlowFunc(("returns %Rrc\n", rc));
540	return rc;
541	}
542
543	/** @copydoc VBOXHDDBACKEND::pfnRename */
544	static int parallelsRename(void pBackendData, const char pszFilename)
545	{
546	LogFlowFunc(("pBackendData=%#p pszFilename=%#p\n", pBackendData, pszFilename));
547	int rc = VINF_SUCCESS;
548	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
549
550	/* Check arguments. */
551	if ( !pImage
552	\|\| !pszFilename
553	\|\| !*pszFilename)
554	{
555	rc = VERR_INVALID_PARAMETER;
556	goto out;
557	}
558
559	/* Close the image. */
560	rc = parallelsFreeImage(pImage, false);
561	if (RT_FAILURE(rc))
562	goto out;
563
564	/* Rename the file. */
565	rc = vdIfIoIntFileMove(pImage->pIfIo, pImage->pszFilename, pszFilename, 0);
566	if (RT_FAILURE(rc))
567	{
568	/* The move failed, try to reopen the original image. */
569	int rc2 = parallelsOpenImage(pImage, pImage->uOpenFlags);
570	if (RT_FAILURE(rc2))
571	rc = rc2;
572
573	goto out;
574	}
575
576	/* Update pImage with the new information. */
577	pImage->pszFilename = pszFilename;
578
579	/* Open the old image with new name. */
580	rc = parallelsOpenImage(pImage, pImage->uOpenFlags);
581	if (RT_FAILURE(rc))
582	goto out;
583
584	out:
585	LogFlowFunc(("returns %Rrc\n", rc));
586	return rc;
587	}
588
589	/** @copydoc VBOXHDDBACKEND::pfnClose */
590	static int parallelsClose(void *pBackendData, bool fDelete)
591	{
592	LogFlowFunc(("pBackendData=%#p fDelete=%d\n", pBackendData, fDelete));
593	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
594	int rc;
595
596	rc = parallelsFreeImage(pImage, fDelete);
597	RTMemFree(pImage);
598
599	LogFlowFunc(("returns %Rrc\n", rc));
600	return rc;
601	}
602
603	/** @copydoc VBOXHDDBACKEND::pfnRead */
604	static int parallelsRead(void *pBackendData, uint64_t uOffset, size_t cbToRead,
605	PVDIOCTX pIoCtx, size_t *pcbActuallyRead)
606	{
607	LogFlowFunc(("pBackendData=%#p uOffset=%llu pIoCtx=%#p cbToRead=%zu pcbActuallyRead=%#p\n",
608	pBackendData, uOffset, pIoCtx, cbToRead, pcbActuallyRead));
609	int rc = VINF_SUCCESS;
610	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
611	uint64_t uSector;
612	uint64_t uOffsetInFile;
613	uint32_t iIndexInAllocationTable;
614
615	AssertPtr(pImage);
616	Assert(uOffset % 512 == 0);
617	Assert(cbToRead % 512 == 0);
618
619	if (pImage->uImageFlags & VD_IMAGE_FLAGS_FIXED)
620	rc = vdIfIoIntFileReadUser(pImage->pIfIo, pImage->pStorage, uOffset,
621	pIoCtx, cbToRead);
622	else
623	{
624	/* Calculate offset in the real file. */
625	uSector = uOffset / 512;
626	/* One chunk in the file is always one track big. */
627	iIndexInAllocationTable = (uint32_t)(uSector / pImage->PCHSGeometry.cSectors);
628	uSector = uSector % pImage->PCHSGeometry.cSectors;
629
630	cbToRead = RT_MIN(cbToRead, (pImage->PCHSGeometry.cSectors - uSector)*512);
631
632	if (pImage->pAllocationBitmap[iIndexInAllocationTable] == 0)
633	rc = VERR_VD_BLOCK_FREE;
634	else
635	{
636	uOffsetInFile = (pImage->pAllocationBitmap[iIndexInAllocationTable] + uSector) * 512;
637	rc = vdIfIoIntFileReadUser(pImage->pIfIo, pImage->pStorage, uOffsetInFile,
638	pIoCtx, cbToRead);
639	}
640	}
641
642	*pcbActuallyRead = cbToRead;
643
644	LogFlowFunc(("returns %Rrc\n", rc));
645	return rc;
646	}
647
648	/** @copydoc VBOXHDDBACKEND::pfnWrite */
649	static int parallelsWrite(void *pBackendData, uint64_t uOffset, size_t cbToWrite,
650	PVDIOCTX pIoCtx, size_t pcbWriteProcess, size_t pcbPreRead,
651	size_t *pcbPostRead, unsigned fWrite)
652	{
653	LogFlowFunc(("pBackendData=%#p uOffset=%llu pIoCtx=%#p cbToWrite=%zu pcbWriteProcess=%#p\n",
654	pBackendData, uOffset, pIoCtx, cbToWrite, pcbWriteProcess));
655	int rc = VINF_SUCCESS;
656	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
657	uint64_t uSector;
658	uint64_t uOffsetInFile;
659	uint32_t iIndexInAllocationTable;
660
661	AssertPtr(pImage);
662	Assert(uOffset % 512 == 0);
663	Assert(cbToWrite % 512 == 0);
664
665	if (pImage->uImageFlags & VD_IMAGE_FLAGS_FIXED)
666	rc = vdIfIoIntFileWriteUser(pImage->pIfIo, pImage->pStorage, uOffset,
667	pIoCtx, cbToWrite, NULL, NULL);
668	else
669	{
670	/* Calculate offset in the real file. */
671	uSector = uOffset / 512;
672	/* One chunk in the file is always one track big. */
673	iIndexInAllocationTable = (uint32_t)(uSector / pImage->PCHSGeometry.cSectors);
674	uSector = uSector % pImage->PCHSGeometry.cSectors;
675
676	cbToWrite = RT_MIN(cbToWrite, (pImage->PCHSGeometry.cSectors - uSector)*512);
677
678	if (pImage->pAllocationBitmap[iIndexInAllocationTable] == 0)
679	{
680	if (fWrite & VD_WRITE_NO_ALLOC)
681	{
682	pcbPreRead = uSector 512;
683	pcbPostRead = pImage->PCHSGeometry.cSectors 512 - cbToWrite - *pcbPreRead;
684
685	if (pcbWriteProcess)
686	*pcbWriteProcess = cbToWrite;
687	return VERR_VD_BLOCK_FREE;
688	}
689
690	/* Allocate new chunk in the file. */
691	Assert(uSector == 0);
692	AssertMsg(pImage->cbFileCurrent % 512 == 0, ("File size is not a multiple of 512\n"));
693	pImage->pAllocationBitmap[iIndexInAllocationTable] = (uint32_t)(pImage->cbFileCurrent / 512);
694	pImage->cbFileCurrent += pImage->PCHSGeometry.cSectors * 512;
695	pImage->fAllocationBitmapChanged = true;
696	uOffsetInFile = (uint64_t)pImage->pAllocationBitmap[iIndexInAllocationTable] * 512;
697
698	/*
699	* Write the new block at the current end of the file.
700	*/
701	rc = vdIfIoIntFileWriteUser(pImage->pIfIo, pImage->pStorage,
702	uOffsetInFile, pIoCtx, cbToWrite, NULL, NULL);
703	if (RT_SUCCESS(rc) \|\| (rc == VERR_VD_ASYNC_IO_IN_PROGRESS))
704	{
705	/* Write the changed allocation bitmap entry. */
706	/** @todo: Error handling. */
707	rc = vdIfIoIntFileWriteMeta(pImage->pIfIo, pImage->pStorage,
708	sizeof(ParallelsHeader) + iIndexInAllocationTable * sizeof(uint32_t),
709	&pImage->pAllocationBitmap[iIndexInAllocationTable],
710	sizeof(uint32_t), pIoCtx,
711	NULL, NULL);
712	}
713
714	*pcbPreRead = 0;
715	*pcbPostRead = 0;
716	}
717	else
718	{
719	uOffsetInFile = (pImage->pAllocationBitmap[iIndexInAllocationTable] + uSector) * 512;
720	rc = vdIfIoIntFileWriteUser(pImage->pIfIo, pImage->pStorage,
721	uOffsetInFile, pIoCtx, cbToWrite, NULL, NULL);
722	}
723	}
724
725	if (pcbWriteProcess)
726	*pcbWriteProcess = cbToWrite;
727
728	LogFlowFunc(("returns %Rrc\n", rc));
729	return rc;
730	}
731
732	/** @copydoc VBOXHDDBACKEND::pfnFlush */
733	static int parallelsFlush(void *pBackendData, PVDIOCTX pIoCtx)
734	{
735	int rc = VINF_SUCCESS;
736	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
737
738	LogFlowFunc(("pImage=#%p\n", pImage));
739
740	/* Flush the file, everything is up to date already. */
741	rc = vdIfIoIntFileFlush(pImage->pIfIo, pImage->pStorage, pIoCtx, NULL, NULL);
742
743	LogFlowFunc(("returns %Rrc\n", rc));
744	return rc;
745	}
746
747	/** @copydoc VBOXHDDBACKEND::pfnGetVersion */
748	static unsigned parallelsGetVersion(void *pBackendData)
749	{
750	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
751	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
752
753	AssertPtr(pImage);
754
755	if (pImage)
756	return PARALLELS_DISK_VERSION;
757	else
758	return 0;
759	}
760
761	/** @copydoc VBOXHDDBACKEND::pfnGetSize */
762	static uint64_t parallelsGetSize(void *pBackendData)
763	{
764	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
765	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
766	uint64_t cb = 0;
767
768	AssertPtr(pImage);
769
770	if (pImage && pImage->pStorage)
771	cb = pImage->cbSize;
772
773	LogFlowFunc(("returns %llu\n", cb));
774	return cb;
775	}
776
777	/** @copydoc VBOXHDDBACKEND::pfnGetFileSize */
778	static uint64_t parallelsGetFileSize(void *pBackendData)
779	{
780	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
781	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
782	uint64_t cb = 0;
783
784	AssertPtr(pImage);
785
786	if (pImage && pImage->pStorage)
787	cb = pImage->cbFileCurrent;
788
789	LogFlowFunc(("returns %lld\n", cb));
790	return cb;
791	}
792
793	/** @copydoc VBOXHDDBACKEND::pfnGetPCHSGeometry */
794	static int parallelsGetPCHSGeometry(void *pBackendData,
795	PVDGEOMETRY pPCHSGeometry)
796	{
797	LogFlowFunc(("pBackendData=%#p pPCHSGeometry=%#p\n", pBackendData, pPCHSGeometry));
798	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
799	int rc;
800
801	AssertPtr(pImage);
802
803	if (pImage)
804	{
805	if (pImage->PCHSGeometry.cCylinders)
806	{
807	*pPCHSGeometry = pImage->PCHSGeometry;
808	rc = VINF_SUCCESS;
809	}
810	else
811	rc = VERR_VD_GEOMETRY_NOT_SET;
812	}
813	else
814	rc = VERR_VD_NOT_OPENED;
815
816	LogFlowFunc(("returns %Rrc (PCHS=%u/%u/%u)\n", rc, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));
817	return rc;
818	}
819
820	/** @copydoc VBOXHDDBACKEND::pfnSetPCHSGeometry */
821	static int parallelsSetPCHSGeometry(void *pBackendData,
822	PCVDGEOMETRY pPCHSGeometry)
823	{
824	LogFlowFunc(("pBackendData=%#p pPCHSGeometry=%#p PCHS=%u/%u/%u\n", pBackendData, pPCHSGeometry, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));
825	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
826	int rc;
827
828	AssertPtr(pImage);
829
830	if (pImage)
831	{
832	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
833	{
834	rc = VERR_VD_IMAGE_READ_ONLY;
835	goto out;
836	}
837
838	pImage->PCHSGeometry = *pPCHSGeometry;
839	rc = VINF_SUCCESS;
840	}
841	else
842	rc = VERR_VD_NOT_OPENED;
843
844	out:
845	LogFlowFunc(("returns %Rrc\n", rc));
846	return rc;
847	}
848
849	/** @copydoc VBOXHDDBACKEND::pfnGetLCHSGeometry */
850	static int parallelsGetLCHSGeometry(void *pBackendData,
851	PVDGEOMETRY pLCHSGeometry)
852	{
853	LogFlowFunc(("pBackendData=%#p pLCHSGeometry=%#p\n", pBackendData, pLCHSGeometry));
854	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
855	int rc;
856
857	AssertPtr(pImage);
858
859	if (pImage)
860	{
861	if (pImage->LCHSGeometry.cCylinders)
862	{
863	*pLCHSGeometry = pImage->LCHSGeometry;
864	rc = VINF_SUCCESS;
865	}
866	else
867	rc = VERR_VD_GEOMETRY_NOT_SET;
868	}
869	else
870	rc = VERR_VD_NOT_OPENED;
871
872	LogFlowFunc(("returns %Rrc (LCHS=%u/%u/%u)\n", rc, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
873	return rc;
874	}
875
876	/** @copydoc VBOXHDDBACKEND::pfnSetLCHSGeometry */
877	static int parallelsSetLCHSGeometry(void *pBackendData,
878	PCVDGEOMETRY pLCHSGeometry)
879	{
880	LogFlowFunc(("pBackendData=%#p pLCHSGeometry=%#p LCHS=%u/%u/%u\n", pBackendData, pLCHSGeometry, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
881	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
882	int rc;
883
884	AssertPtr(pImage);
885
886	if (pImage)
887	{
888	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
889	{
890	rc = VERR_VD_IMAGE_READ_ONLY;
891	goto out;
892	}
893
894	pImage->LCHSGeometry = *pLCHSGeometry;
895	rc = VINF_SUCCESS;
896	}
897	else
898	rc = VERR_VD_NOT_OPENED;
899
900	out:
901	LogFlowFunc(("returns %Rrc\n", rc));
902	return rc;
903	}
904
905	/** @copydoc VBOXHDDBACKEND::pfnGetImageFlags */
906	static unsigned parallelsGetImageFlags(void *pBackendData)
907	{
908	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
909	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
910	unsigned uImageFlags;
911
912	AssertPtr(pImage);
913
914	if (pImage)
915	uImageFlags = pImage->uImageFlags;
916	else
917	uImageFlags = 0;
918
919	LogFlowFunc(("returns %#x\n", uImageFlags));
920	return uImageFlags;
921	}
922
923	/** @copydoc VBOXHDDBACKEND::pfnGetOpenFlags */
924	static unsigned parallelsGetOpenFlags(void *pBackendData)
925	{
926	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
927	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
928	unsigned uOpenFlags;
929
930	AssertPtr(pImage);
931
932	if (pImage)
933	uOpenFlags = pImage->uOpenFlags;
934	else
935	uOpenFlags = 0;
936
937	LogFlowFunc(("returns %#x\n", uOpenFlags));
938	return uOpenFlags;
939	}
940
941	/** @copydoc VBOXHDDBACKEND::pfnSetOpenFlags */
942	static int parallelsSetOpenFlags(void *pBackendData, unsigned uOpenFlags)
943	{
944	LogFlowFunc(("pBackendData=%#p\n uOpenFlags=%#x", pBackendData, uOpenFlags));
945	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
946	int rc;
947
948	/* Image must be opened and the new flags must be valid. */
949	if (!pImage \|\| (uOpenFlags & ~( VD_OPEN_FLAGS_READONLY \| VD_OPEN_FLAGS_INFO
950	\| VD_OPEN_FLAGS_ASYNC_IO \| VD_OPEN_FLAGS_SHAREABLE
951	\| VD_OPEN_FLAGS_SEQUENTIAL \| VD_OPEN_FLAGS_SKIP_CONSISTENCY_CHECKS)))
952	{
953	rc = VERR_INVALID_PARAMETER;
954	goto out;
955	}
956
957	/* Implement this operation via reopening the image. */
958	parallelsFreeImage(pImage, false);
959	rc = parallelsOpenImage(pImage, uOpenFlags);
960
961	out:
962	LogFlowFunc(("returns %Rrc\n", rc));
963	return rc;
964	}
965
966	/** @copydoc VBOXHDDBACKEND::pfnGetComment */
967	static int parallelsGetComment(void pBackendData, char pszComment,
968	size_t cbComment)
969	{
970	LogFlowFunc(("pBackendData=%#p pszComment=%#p cbComment=%zu\n", pBackendData, pszComment, cbComment));
971	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
972	int rc;
973
974	AssertPtr(pImage);
975
976	if (pImage)
977	rc = VERR_NOT_SUPPORTED;
978	else
979	rc = VERR_VD_NOT_OPENED;
980
981	LogFlowFunc(("returns %Rrc comment='%s'\n", rc, pszComment));
982	return rc;
983	}
984
985	/** @copydoc VBOXHDDBACKEND::pfnSetComment */
986	static int parallelsSetComment(void pBackendData, const char pszComment)
987	{
988	LogFlowFunc(("pBackendData=%#p pszComment=\"%s\"\n", pBackendData, pszComment));
989	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
990	int rc;
991
992	AssertPtr(pImage);
993
994	if (pImage)
995	{
996	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
997	rc = VERR_VD_IMAGE_READ_ONLY;
998	else
999	rc = VERR_NOT_SUPPORTED;
1000	}
1001	else
1002	rc = VERR_VD_NOT_OPENED;
1003
1004	LogFlowFunc(("returns %Rrc\n", rc));
1005	return rc;
1006	}
1007
1008	/** @copydoc VBOXHDDBACKEND::pfnGetUuid */
1009	static int parallelsGetUuid(void *pBackendData, PRTUUID pUuid)
1010	{
1011	LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
1012	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1013	int rc;
1014
1015	AssertPtr(pImage);
1016
1017	if (pImage)
1018	rc = VERR_NOT_SUPPORTED;
1019	else
1020	rc = VERR_VD_NOT_OPENED;
1021
1022	LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
1023	return rc;
1024	}
1025
1026	/** @copydoc VBOXHDDBACKEND::pfnSetUuid */
1027	static int parallelsSetUuid(void *pBackendData, PCRTUUID pUuid)
1028	{
1029	LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
1030	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1031	int rc;
1032
1033	AssertPtr(pImage);
1034
1035	if (pImage)
1036	{
1037	if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
1038	rc = VERR_NOT_SUPPORTED;
1039	else
1040	rc = VERR_VD_IMAGE_READ_ONLY;
1041	}
1042	else
1043	rc = VERR_VD_NOT_OPENED;
1044
1045	LogFlowFunc(("returns %Rrc\n", rc));
1046	return rc;
1047	}
1048
1049	/** @copydoc VBOXHDDBACKEND::pfnGetModificationUuid */
1050	static int parallelsGetModificationUuid(void *pBackendData, PRTUUID pUuid)
1051	{
1052	LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
1053	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1054	int rc;
1055
1056	AssertPtr(pImage);
1057
1058	if (pImage)
1059	rc = VERR_NOT_SUPPORTED;
1060	else
1061	rc = VERR_VD_NOT_OPENED;
1062
1063	LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
1064	return rc;
1065	}
1066
1067	/** @copydoc VBOXHDDBACKEND::pfnSetModificationUuid */
1068	static int parallelsSetModificationUuid(void *pBackendData, PCRTUUID pUuid)
1069	{
1070	LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
1071	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1072	int rc;
1073
1074	AssertPtr(pImage);
1075
1076	if (pImage)
1077	{
1078	if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
1079	rc = VERR_NOT_SUPPORTED;
1080	else
1081	rc = VERR_VD_IMAGE_READ_ONLY;
1082	}
1083	else
1084	rc = VERR_VD_NOT_OPENED;
1085
1086	LogFlowFunc(("returns %Rrc\n", rc));
1087	return rc;
1088	}
1089
1090	/** @copydoc VBOXHDDBACKEND::pfnGetParentUuid */
1091	static int parallelsGetParentUuid(void *pBackendData, PRTUUID pUuid)
1092	{
1093	LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
1094	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1095	int rc;
1096
1097	AssertPtr(pImage);
1098
1099	if (pImage)
1100	rc = VERR_NOT_SUPPORTED;
1101	else
1102	rc = VERR_VD_NOT_OPENED;
1103
1104	LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
1105	return rc;
1106	}
1107
1108	/** @copydoc VBOXHDDBACKEND::pfnSetParentUuid */
1109	static int parallelsSetParentUuid(void *pBackendData, PCRTUUID pUuid)
1110	{
1111	LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
1112	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1113	int rc;
1114
1115	AssertPtr(pImage);
1116
1117	if (pImage)
1118	{
1119	if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
1120	rc = VERR_NOT_SUPPORTED;
1121	else
1122	rc = VERR_VD_IMAGE_READ_ONLY;
1123	}
1124	else
1125	rc = VERR_VD_NOT_OPENED;
1126
1127	LogFlowFunc(("returns %Rrc\n", rc));
1128	return rc;
1129	}
1130
1131	/** @copydoc VBOXHDDBACKEND::pfnGetParentModificationUuid */
1132	static int parallelsGetParentModificationUuid(void *pBackendData, PRTUUID pUuid)
1133	{
1134	LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
1135	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1136	int rc;
1137
1138	AssertPtr(pImage);
1139
1140	if (pImage)
1141	rc = VERR_NOT_SUPPORTED;
1142	else
1143	rc = VERR_VD_NOT_OPENED;
1144
1145	LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
1146	return rc;
1147	}
1148
1149	/** @copydoc VBOXHDDBACKEND::pfnSetParentModificationUuid */
1150	static int parallelsSetParentModificationUuid(void *pBackendData, PCRTUUID pUuid)
1151	{
1152	LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
1153	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1154	int rc;
1155
1156	AssertPtr(pImage);
1157
1158	if (pImage)
1159	{
1160	if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
1161	rc = VERR_NOT_SUPPORTED;
1162	else
1163	rc = VERR_VD_IMAGE_READ_ONLY;
1164	}
1165	else
1166	rc = VERR_VD_NOT_OPENED;
1167
1168	LogFlowFunc(("returns %Rrc\n", rc));
1169	return rc;
1170	}
1171
1172	/** @copydoc VBOXHDDBACKEND::pfnDump */
1173	static void parallelsDump(void *pBackendData)
1174	{
1175	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1176
1177	AssertPtr(pImage);
1178	if (pImage)
1179	{
1180	vdIfErrorMessage(pImage->pIfError, "Header: Geometry PCHS=%u/%u/%u LCHS=%u/%u/%u\n",
1181	pImage->PCHSGeometry.cCylinders, pImage->PCHSGeometry.cHeads, pImage->PCHSGeometry.cSectors,
1182	pImage->LCHSGeometry.cCylinders, pImage->LCHSGeometry.cHeads, pImage->LCHSGeometry.cSectors);
1183	}
1184	}
1185
1186
1187
1188	VBOXHDDBACKEND g_ParallelsBackend =
1189	{
1190	/* pszBackendName */
1191	"Parallels",
1192	/* cbSize */
1193	sizeof(VBOXHDDBACKEND),
1194	/* uBackendCaps */
1195	VD_CAP_FILE \| VD_CAP_ASYNC \| VD_CAP_VFS \| VD_CAP_CREATE_DYNAMIC \| VD_CAP_DIFF,
1196	/* paFileExtensions */
1197	s_aParallelsFileExtensions,
1198	/* paConfigInfo */
1199	NULL,
1200	/* hPlugin */
1201	NIL_RTLDRMOD,
1202	/* pfnCheckIfValid */
1203	parallelsCheckIfValid,
1204	/* pfnOpen */
1205	parallelsOpen,
1206	/* pfnCreate */
1207	parallelsCreate,
1208	/* pfnRename */
1209	parallelsRename,
1210	/* pfnClose */
1211	parallelsClose,
1212	/* pfnRead */
1213	parallelsRead,
1214	/* pfnWrite */
1215	parallelsWrite,
1216	/* pfnFlush */
1217	parallelsFlush,
1218	/* pfnDiscard */
1219	NULL,
1220	/* pfnGetVersion */
1221	parallelsGetVersion,
1222	/* pfnGetSize */
1223	parallelsGetSize,
1224	/* pfnGetFileSize */
1225	parallelsGetFileSize,
1226	/* pfnGetPCHSGeometry */
1227	parallelsGetPCHSGeometry,
1228	/* pfnSetPCHSGeometry */
1229	parallelsSetPCHSGeometry,
1230	/* pfnGetLCHSGeometry */
1231	parallelsGetLCHSGeometry,
1232	/* pfnSetLCHSGeometry */
1233	parallelsSetLCHSGeometry,
1234	/* pfnGetImageFlags */
1235	parallelsGetImageFlags,
1236	/* pfnGetOpenFlags */
1237	parallelsGetOpenFlags,
1238	/* pfnSetOpenFlags */
1239	parallelsSetOpenFlags,
1240	/* pfnGetComment */
1241	parallelsGetComment,
1242	/* pfnSetComment */
1243	parallelsSetComment,
1244	/* pfnGetUuid */
1245	parallelsGetUuid,
1246	/* pfnSetUuid */
1247	parallelsSetUuid,
1248	/* pfnGetModificationUuid */
1249	parallelsGetModificationUuid,
1250	/* pfnSetModificationUuid */
1251	parallelsSetModificationUuid,
1252	/* pfnGetParentUuid */
1253	parallelsGetParentUuid,
1254	/* pfnSetParentUuid */
1255	parallelsSetParentUuid,
1256	/* pfnGetParentModificationUuid */
1257	parallelsGetParentModificationUuid,
1258	/* pfnSetParentModificationUuid */
1259	parallelsSetParentModificationUuid,
1260	/* pfnDump */
1261	parallelsDump,
1262	/* pfnGetTimeStamp */
1263	NULL,
1264	/* pfnGetParentTimeStamp */
1265	NULL,
1266	/* pfnSetParentTimeStamp */
1267	NULL,
1268	/* pfnGetParentFilename */
1269	NULL,
1270	/* pfnSetParentFilename */
1271	NULL,
1272	/* pfnComposeLocation */
1273	genericFileComposeLocation,
1274	/* pfnComposeName */
1275	genericFileComposeName,
1276	/* pfnCompact */
1277	NULL,
1278	/* pfnResize */
1279	NULL,
1280	/* pfnRepair */
1281	NULL
1282	};

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source: vbox/trunk/src/VBox/Storage/Parallels.cpp@ 44794

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