Parallels.cpp@ 96973

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1	/* $Id: Parallels.cpp 96407 2022-08-22 17:43:14Z vboxsync $ */
2	/** @file
3	*
4	* Parallels hdd disk image, core code.
5	*/
6
7	/*
8	* Copyright (C) 2006-2022 Oracle and/or its affiliates.
9	*
10	* This file is part of VirtualBox base platform packages, as
11	* available from https://www.virtualbox.org.
12	*
13	* This program is free software; you can redistribute it and/or
14	* modify it under the terms of the GNU General Public License
15	* as published by the Free Software Foundation, in version 3 of the
16	* License.
17	*
18	* This program is distributed in the hope that it will be useful, but
19	* WITHOUT ANY WARRANTY; without even the implied warranty of
20	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21	* General Public License for more details.
22	*
23	* You should have received a copy of the GNU General Public License
24	* along with this program; if not, see <https://www.gnu.org/licenses>.
25	*
26	* SPDX-License-Identifier: GPL-3.0-only
27	*/
28
29	#define LOG_GROUP LOG_GROUP_VD_PARALLELS
30	#include <VBox/vd-plugin.h>
31	#include <VBox/err.h>
32
33	#include <VBox/log.h>
34	#include <iprt/assert.h>
35	#include <iprt/mem.h>
36	#include <iprt/uuid.h>
37	#include <iprt/path.h>
38	#include <iprt/string.h>
39	#include <iprt/asm.h>
40
41	#include "VDBackends.h"
42
43	#define PARALLELS_HEADER_MAGIC "WithoutFreeSpace"
44	#define PARALLELS_DISK_VERSION 2
45
46	/** The header of the parallels disk. */
47	#pragma pack(1)
48	typedef struct ParallelsHeader
49	{
50	/** The magic header to identify a parallels hdd image. */
51	char HeaderIdentifier[16];
52	/** The version of the disk image. */
53	uint32_t uVersion;
54	/** The number of heads the hdd has. */
55	uint32_t cHeads;
56	/** Number of cylinders. */
57	uint32_t cCylinders;
58	/** Number of sectors per track. */
59	uint32_t cSectorsPerTrack;
60	/** Number of entries in the allocation bitmap. */
61	uint32_t cEntriesInAllocationBitmap;
62	/** Total number of sectors. */
63	uint32_t cSectors;
64	/** Padding. */
65	char Padding[24];
66	} ParallelsHeader;
67	#pragma pack()
68
69	/**
70	* Parallels image structure.
71	*/
72	typedef struct PARALLELSIMAGE
73	{
74	/** Image file name. */
75	const char *pszFilename;
76	/** Opaque storage handle. */
77	PVDIOSTORAGE pStorage;
78
79	/** Pointer to the per-disk VD interface list. */
80	PVDINTERFACE pVDIfsDisk;
81	/** Pointer to the per-image VD interface list. */
82	PVDINTERFACE pVDIfsImage;
83	/** Error interface. */
84	PVDINTERFACEERROR pIfError;
85	/** I/O interface. */
86	PVDINTERFACEIOINT pIfIo;
87
88	/** Open flags passed by VBoxHDD layer. */
89	unsigned uOpenFlags;
90	/** Image flags defined during creation or determined during open. */
91	unsigned uImageFlags;
92	/** Total size of the image. */
93	uint64_t cbSize;
94
95	/** Physical geometry of this image. */
96	VDGEOMETRY PCHSGeometry;
97	/** Logical geometry of this image. */
98	VDGEOMETRY LCHSGeometry;
99
100	/** Pointer to the allocation bitmap. */
101	uint32_t *pAllocationBitmap;
102	/** Entries in the allocation bitmap. */
103	uint64_t cAllocationBitmapEntries;
104	/** Flag whether the allocation bitmap was changed. */
105	bool fAllocationBitmapChanged;
106	/** Current file size. */
107	uint64_t cbFileCurrent;
108	/** The static region list. */
109	VDREGIONLIST RegionList;
110	} PARALLELSIMAGE, *PPARALLELSIMAGE;
111
112
113	/*********************************************************************************************************************************
114	* Static Variables *
115	*********************************************************************************************************************************/
116
117	/** NULL-terminated array of supported file extensions. */
118	static const VDFILEEXTENSION s_aParallelsFileExtensions[] =
119	{
120	{"hdd", VDTYPE_HDD},
121	{NULL, VDTYPE_INVALID}
122	};
123
124	/***************************************************
125	* Internal functions *
126	**************************************************/
127
128	/**
129	* Internal. Flush image data to disk.
130	*/
131	static int parallelsFlushImage(PPARALLELSIMAGE pImage)
132	{
133	int rc = VINF_SUCCESS;
134
135	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
136	return VINF_SUCCESS;
137
138	if ( !(pImage->uImageFlags & VD_IMAGE_FLAGS_FIXED)
139	&& (pImage->fAllocationBitmapChanged))
140	{
141	pImage->fAllocationBitmapChanged = false;
142	/* Write the allocation bitmap to the file. */
143	rc = vdIfIoIntFileWriteSync(pImage->pIfIo, pImage->pStorage,
144	sizeof(ParallelsHeader), pImage->pAllocationBitmap,
145	pImage->cAllocationBitmapEntries * sizeof(uint32_t));
146	if (RT_FAILURE(rc))
147	return rc;
148	}
149
150	/* Flush file. */
151	rc = vdIfIoIntFileFlushSync(pImage->pIfIo, pImage->pStorage);
152
153	LogFlowFunc(("returns %Rrc\n", rc));
154	return rc;
155	}
156
157	/**
158	* Internal. Free all allocated space for representing an image except pImage,
159	* and optionally delete the image from disk.
160	*/
161	static int parallelsFreeImage(PPARALLELSIMAGE pImage, bool fDelete)
162	{
163	int rc = VINF_SUCCESS;
164
165	/* Freeing a never allocated image (e.g. because the open failed) is
166	* not signalled as an error. After all nothing bad happens. */
167	if (pImage)
168	{
169	if (pImage->pStorage)
170	{
171	/* No point updating the file that is deleted anyway. */
172	if (!fDelete)
173	parallelsFlushImage(pImage);
174
175	rc = vdIfIoIntFileClose(pImage->pIfIo, pImage->pStorage);
176	pImage->pStorage = NULL;
177	}
178
179	if (pImage->pAllocationBitmap)
180	{
181	RTMemFree(pImage->pAllocationBitmap);
182	pImage->pAllocationBitmap = NULL;
183	}
184
185	if (fDelete && pImage->pszFilename)
186	vdIfIoIntFileDelete(pImage->pIfIo, pImage->pszFilename);
187	}
188
189	return rc;
190	}
191
192	static int parallelsOpenImage(PPARALLELSIMAGE pImage, unsigned uOpenFlags)
193	{
194	pImage->pIfError = VDIfErrorGet(pImage->pVDIfsDisk);
195	pImage->pIfIo = VDIfIoIntGet(pImage->pVDIfsImage);
196	pImage->uOpenFlags = uOpenFlags;
197	AssertPtrReturn(pImage->pIfIo, VERR_INVALID_PARAMETER);
198
199	int rc = vdIfIoIntFileOpen(pImage->pIfIo, pImage->pszFilename,
200	VDOpenFlagsToFileOpenFlags(uOpenFlags,
201	false /* fCreate */),
202	&pImage->pStorage);
203	if (RT_SUCCESS(rc))
204	{
205	rc = vdIfIoIntFileGetSize(pImage->pIfIo, pImage->pStorage, &pImage->cbFileCurrent);
206	if (RT_SUCCESS(rc)
207	&& !(pImage->cbFileCurrent % 512))
208	{
209	ParallelsHeader parallelsHeader;
210
211	rc = vdIfIoIntFileReadSync(pImage->pIfIo, pImage->pStorage, 0,
212	&parallelsHeader, sizeof(parallelsHeader));
213	if (RT_SUCCESS(rc))
214	{
215	if (memcmp(parallelsHeader.HeaderIdentifier, PARALLELS_HEADER_MAGIC, 16))
216	{
217	/* Check if the file has hdd as extension. It is a fixed size raw image then. */
218	char *pszSuffix = RTPathSuffix(pImage->pszFilename);
219	if (!strcmp(pszSuffix, ".hdd"))
220	{
221	/* This is a fixed size image. */
222	pImage->uImageFlags \|= VD_IMAGE_FLAGS_FIXED;
223	pImage->cbSize = pImage->cbFileCurrent;
224
225	pImage->PCHSGeometry.cHeads = 16;
226	pImage->PCHSGeometry.cSectors = 63;
227	uint64_t cCylinders = pImage->cbSize / (512 * pImage->PCHSGeometry.cSectors * pImage->PCHSGeometry.cHeads);
228	pImage->PCHSGeometry.cCylinders = (uint32_t)cCylinders;
229	}
230	else
231	rc = VERR_VD_PARALLELS_INVALID_HEADER;
232	}
233	else
234	{
235	if ( parallelsHeader.uVersion == PARALLELS_DISK_VERSION
236	&& parallelsHeader.cEntriesInAllocationBitmap <= (1 << 30))
237	{
238	Log(("cSectors=%u\n", parallelsHeader.cSectors));
239	pImage->cbSize = ((uint64_t)parallelsHeader.cSectors) * 512;
240	pImage->uImageFlags = VD_IMAGE_FLAGS_NONE;
241	pImage->PCHSGeometry.cCylinders = parallelsHeader.cCylinders;
242	pImage->PCHSGeometry.cHeads = parallelsHeader.cHeads;
243	pImage->PCHSGeometry.cSectors = parallelsHeader.cSectorsPerTrack;
244	pImage->cAllocationBitmapEntries = parallelsHeader.cEntriesInAllocationBitmap;
245	pImage->pAllocationBitmap = (uint32_t )RTMemAllocZ((uint32_t)pImage->cAllocationBitmapEntries sizeof(uint32_t));
246	if (RT_LIKELY(pImage->pAllocationBitmap))
247	rc = vdIfIoIntFileReadSync(pImage->pIfIo, pImage->pStorage,
248	sizeof(ParallelsHeader), pImage->pAllocationBitmap,
249	pImage->cAllocationBitmapEntries * sizeof(uint32_t));
250	else
251	rc = VERR_NO_MEMORY;
252	}
253	else
254	rc = VERR_NOT_SUPPORTED;
255	}
256	}
257	}
258	else if (RT_SUCCESS(rc))
259	rc = VERR_VD_PARALLELS_INVALID_HEADER;
260	}
261
262	if (RT_SUCCESS(rc))
263	{
264	PVDREGIONDESC pRegion = &pImage->RegionList.aRegions[0];
265	pImage->RegionList.fFlags = 0;
266	pImage->RegionList.cRegions = 1;
267
268	pRegion->offRegion = 0; /* Disk start. */
269	pRegion->cbBlock = 512;
270	pRegion->enmDataForm = VDREGIONDATAFORM_RAW;
271	pRegion->enmMetadataForm = VDREGIONMETADATAFORM_NONE;
272	pRegion->cbData = 512;
273	pRegion->cbMetadata = 0;
274	pRegion->cRegionBlocksOrBytes = pImage->cbSize;
275	}
276	else
277	parallelsFreeImage(pImage, false);
278
279	LogFlowFunc(("returns %Rrc\n", rc));
280	return rc;
281	}
282
283	/**
284	* Internal: Create a parallels image.
285	*/
286	static int parallelsCreateImage(PPARALLELSIMAGE pImage, uint64_t cbSize,
287	unsigned uImageFlags, const char *pszComment,
288	PCVDGEOMETRY pPCHSGeometry,
289	PCVDGEOMETRY pLCHSGeometry, unsigned uOpenFlags,
290	PFNVDPROGRESS pfnProgress, void *pvUser,
291	unsigned uPercentStart, unsigned uPercentSpan)
292	{
293	RT_NOREF1(pszComment);
294	int rc = VINF_SUCCESS;
295	int32_t fOpen;
296
297	if (!(uImageFlags & VD_IMAGE_FLAGS_FIXED))
298	{
299	pImage->pIfError = VDIfErrorGet(pImage->pVDIfsDisk);
300	pImage->pIfIo = VDIfIoIntGet(pImage->pVDIfsImage);
301	AssertPtrReturn(pImage->pIfIo, VERR_INVALID_PARAMETER);
302
303	pImage->uOpenFlags = uOpenFlags & ~VD_OPEN_FLAGS_READONLY;
304	pImage->uImageFlags = uImageFlags;
305	pImage->PCHSGeometry = *pPCHSGeometry;
306	pImage->LCHSGeometry = *pLCHSGeometry;
307	if (!pImage->PCHSGeometry.cCylinders)
308	{
309	/* Set defaults. */
310	pImage->PCHSGeometry.cSectors = 63;
311	pImage->PCHSGeometry.cHeads = 16;
312	pImage->PCHSGeometry.cCylinders = pImage->cbSize / (512 * pImage->PCHSGeometry.cSectors * pImage->PCHSGeometry.cHeads);
313	}
314
315	/* Create image file. */
316	fOpen = VDOpenFlagsToFileOpenFlags(pImage->uOpenFlags, true /* fCreate */);
317	rc = vdIfIoIntFileOpen(pImage->pIfIo, pImage->pszFilename, fOpen, &pImage->pStorage);
318	if (RT_SUCCESS(rc))
319	{
320	if (pfnProgress)
321	pfnProgress(pvUser, uPercentStart + uPercentSpan * 98 / 100);
322
323	/* Setup image state. */
324	pImage->cbSize = cbSize;
325	pImage->cAllocationBitmapEntries = cbSize / 512 / pImage->PCHSGeometry.cSectors;
326	if (pImage->cAllocationBitmapEntries * pImage->PCHSGeometry.cSectors * 512 < cbSize)
327	pImage->cAllocationBitmapEntries++;
328	pImage->fAllocationBitmapChanged = true;
329	pImage->cbFileCurrent = sizeof(ParallelsHeader) + pImage->cAllocationBitmapEntries * sizeof(uint32_t);
330	/* Round to next sector boundary. */
331	pImage->cbFileCurrent += 512 - pImage->cbFileCurrent % 512;
332	Assert(!(pImage->cbFileCurrent % 512));
333	pImage->pAllocationBitmap = (uint32_t )RTMemAllocZ(pImage->cAllocationBitmapEntries sizeof(uint32_t));
334	if (pImage->pAllocationBitmap)
335	{
336	ParallelsHeader Header;
337
338	memcpy(Header.HeaderIdentifier, PARALLELS_HEADER_MAGIC, sizeof(Header.HeaderIdentifier));
339	Header.uVersion = RT_H2LE_U32(PARALLELS_DISK_VERSION);
340	Header.cHeads = RT_H2LE_U32(pImage->PCHSGeometry.cHeads);
341	Header.cCylinders = RT_H2LE_U32(pImage->PCHSGeometry.cCylinders);
342	Header.cSectorsPerTrack = RT_H2LE_U32(pImage->PCHSGeometry.cSectors);
343	Header.cEntriesInAllocationBitmap = RT_H2LE_U32(pImage->cAllocationBitmapEntries);
344	Header.cSectors = RT_H2LE_U32(pImage->cbSize / 512);
345	memset(Header.Padding, 0, sizeof(Header.Padding));
346
347	/* Write header and allocation bitmap. */
348	rc = vdIfIoIntFileSetSize(pImage->pIfIo, pImage->pStorage, pImage->cbFileCurrent);
349	if (RT_SUCCESS(rc))
350	rc = vdIfIoIntFileWriteSync(pImage->pIfIo, pImage->pStorage, 0,
351	&Header, sizeof(Header));
352	if (RT_SUCCESS(rc))
353	rc = parallelsFlushImage(pImage); /* Writes the allocation bitmap. */
354	}
355	else
356	rc = VERR_NO_MEMORY;
357	}
358	else
359	rc = vdIfError(pImage->pIfError, rc, RT_SRC_POS, N_("Parallels: cannot create image '%s'"), pImage->pszFilename);
360	}
361	else
362	rc = vdIfError(pImage->pIfError, VERR_VD_INVALID_TYPE, RT_SRC_POS, N_("Parallels: cannot create fixed image '%s'. Create a raw image"), pImage->pszFilename);
363
364	if (RT_SUCCESS(rc) && pfnProgress)
365	pfnProgress(pvUser, uPercentStart + uPercentSpan);
366
367	if (RT_SUCCESS(rc))
368	{
369	PVDREGIONDESC pRegion = &pImage->RegionList.aRegions[0];
370	pImage->RegionList.fFlags = 0;
371	pImage->RegionList.cRegions = 1;
372
373	pRegion->offRegion = 0; /* Disk start. */
374	pRegion->cbBlock = 512;
375	pRegion->enmDataForm = VDREGIONDATAFORM_RAW;
376	pRegion->enmMetadataForm = VDREGIONMETADATAFORM_NONE;
377	pRegion->cbData = 512;
378	pRegion->cbMetadata = 0;
379	pRegion->cRegionBlocksOrBytes = pImage->cbSize;
380	}
381	else
382	parallelsFreeImage(pImage, rc != VERR_ALREADY_EXISTS);
383	return rc;
384	}
385
386	/** @copydoc VDIMAGEBACKEND::pfnProbe */
387	static DECLCALLBACK(int) parallelsProbe(const char *pszFilename, PVDINTERFACE pVDIfsDisk,
388	PVDINTERFACE pVDIfsImage, VDTYPE enmDesiredType, VDTYPE *penmType)
389	{
390	RT_NOREF(pVDIfsDisk, enmDesiredType);
391	int rc;
392	PVDIOSTORAGE pStorage;
393	ParallelsHeader parallelsHeader;
394
395	PVDINTERFACEIOINT pIfIo = VDIfIoIntGet(pVDIfsImage);
396	AssertPtrReturn(pIfIo, VERR_INVALID_PARAMETER);
397
398	rc = vdIfIoIntFileOpen(pIfIo, pszFilename,
399	VDOpenFlagsToFileOpenFlags(VD_OPEN_FLAGS_READONLY,
400	false /* fCreate */),
401	&pStorage);
402	if (RT_FAILURE(rc))
403	return rc;
404
405	rc = vdIfIoIntFileReadSync(pIfIo, pStorage, 0, &parallelsHeader,
406	sizeof(ParallelsHeader));
407	if (RT_SUCCESS(rc))
408	{
409	if ( !memcmp(parallelsHeader.HeaderIdentifier, PARALLELS_HEADER_MAGIC, 16)
410	&& (parallelsHeader.uVersion == PARALLELS_DISK_VERSION))
411	rc = VINF_SUCCESS;
412	else
413	{
414	/*
415	* The image may be an fixed size image.
416	* Unfortunately fixed sized parallels images
417	* are just raw files hence no magic header to
418	* check for.
419	* The code succeeds if the file is a multiple
420	* of 512 and if the file extensions is *.hdd
421	*/
422	uint64_t cbFile;
423	char *pszSuffix;
424
425	rc = vdIfIoIntFileGetSize(pIfIo, pStorage, &cbFile);
426	if (RT_FAILURE(rc) \|\| ((cbFile % 512) != 0))
427	{
428	vdIfIoIntFileClose(pIfIo, pStorage);
429	return VERR_VD_PARALLELS_INVALID_HEADER;
430	}
431
432	pszSuffix = RTPathSuffix(pszFilename);
433	if (!pszSuffix \|\| strcmp(pszSuffix, ".hdd"))
434	rc = VERR_VD_PARALLELS_INVALID_HEADER;
435	else
436	rc = VINF_SUCCESS;
437	}
438	}
439
440	if (RT_SUCCESS(rc))
441	*penmType = VDTYPE_HDD;
442
443	vdIfIoIntFileClose(pIfIo, pStorage);
444	return rc;
445	}
446
447	/** @copydoc VDIMAGEBACKEND::pfnOpen */
448	static DECLCALLBACK(int) parallelsOpen(const char *pszFilename, unsigned uOpenFlags,
449	PVDINTERFACE pVDIfsDisk, PVDINTERFACE pVDIfsImage,
450	VDTYPE enmType, void **ppBackendData)
451	{
452	LogFlowFunc(("pszFilename=\"%s\" uOpenFlags=%#x pVDIfsDisk=%#p pVDIfsImage=%#p enmType=%u ppBackendData=%#p\n", pszFilename, uOpenFlags, pVDIfsDisk, pVDIfsImage, enmType, ppBackendData));
453	int rc;
454	PPARALLELSIMAGE pImage;
455
456	NOREF(enmType); /*< @todo r=klaus make use of the type info. /
457
458	/* Check parameters. */
459	AssertReturn(!(uOpenFlags & ~VD_OPEN_FLAGS_MASK), VERR_INVALID_PARAMETER);
460	AssertPtrReturn(pszFilename, VERR_INVALID_POINTER);
461	AssertReturn(*pszFilename != '\0', VERR_INVALID_PARAMETER);
462
463
464	pImage = (PPARALLELSIMAGE)RTMemAllocZ(RT_UOFFSETOF(PARALLELSIMAGE, RegionList.aRegions[1]));
465	if (RT_LIKELY(pImage))
466	{
467	pImage->pszFilename = pszFilename;
468	pImage->pStorage = NULL;
469	pImage->pVDIfsDisk = pVDIfsDisk;
470	pImage->pVDIfsImage = pVDIfsImage;
471	pImage->fAllocationBitmapChanged = false;
472
473	rc = parallelsOpenImage(pImage, uOpenFlags);
474	if (RT_SUCCESS(rc))
475	*ppBackendData = pImage;
476	else
477	RTMemFree(pImage);
478	}
479	else
480	rc = VERR_NO_MEMORY;
481
482	LogFlowFunc(("returns %Rrc (pBackendData=%#p)\n", rc, *ppBackendData));
483	return rc;
484	}
485
486	/** @copydoc VDIMAGEBACKEND::pfnCreate */
487	static DECLCALLBACK(int) parallelsCreate(const char *pszFilename, uint64_t cbSize,
488	unsigned uImageFlags, const char *pszComment,
489	PCVDGEOMETRY pPCHSGeometry,
490	PCVDGEOMETRY pLCHSGeometry, PCRTUUID pUuid,
491	unsigned uOpenFlags, unsigned uPercentStart,
492	unsigned uPercentSpan, PVDINTERFACE pVDIfsDisk,
493	PVDINTERFACE pVDIfsImage,
494	PVDINTERFACE pVDIfsOperation, VDTYPE enmType,
495	void **ppBackendData)
496	{
497	RT_NOREF1(pUuid);
498	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",
499	pszFilename, cbSize, uImageFlags, pszComment, pPCHSGeometry, pLCHSGeometry, pUuid, uOpenFlags, uPercentStart, uPercentSpan, pVDIfsDisk, pVDIfsImage, pVDIfsOperation, enmType, ppBackendData));
500
501	/* Check the VD container type. */
502	if (enmType != VDTYPE_HDD)
503	return VERR_VD_INVALID_TYPE;
504
505	/* Check arguments. */
506	AssertReturn(!(uOpenFlags & ~VD_OPEN_FLAGS_MASK), VERR_INVALID_PARAMETER);
507	AssertPtrReturn(pszFilename, VERR_INVALID_POINTER);
508	AssertReturn(*pszFilename != '\0', VERR_INVALID_PARAMETER);
509	AssertPtrReturn(pPCHSGeometry, VERR_INVALID_POINTER);
510	AssertPtrReturn(pLCHSGeometry, VERR_INVALID_POINTER);
511
512	int rc = VINF_SUCCESS;
513	PPARALLELSIMAGE pImage;
514	PFNVDPROGRESS pfnProgress = NULL;
515	void *pvUser = NULL;
516	PVDINTERFACEPROGRESS pIfProgress = VDIfProgressGet(pVDIfsOperation);
517	if (pIfProgress)
518	{
519	pfnProgress = pIfProgress->pfnProgress;
520	pvUser = pIfProgress->Core.pvUser;
521	}
522
523	pImage = (PPARALLELSIMAGE)RTMemAllocZ(RT_UOFFSETOF(PARALLELSIMAGE, RegionList.aRegions[1]));
524	if (RT_LIKELY(pImage))
525	{
526	pImage->pszFilename = pszFilename;
527	pImage->pStorage = NULL;
528	pImage->pVDIfsDisk = pVDIfsDisk;
529	pImage->pVDIfsImage = pVDIfsImage;
530
531	rc = parallelsCreateImage(pImage, cbSize, uImageFlags, pszComment,
532	pPCHSGeometry, pLCHSGeometry, uOpenFlags,
533	pfnProgress, pvUser, uPercentStart, uPercentSpan);
534	if (RT_SUCCESS(rc))
535	{
536	/* So far the image is opened in read/write mode. Make sure the
537	* image is opened in read-only mode if the caller requested that. */
538	if (uOpenFlags & VD_OPEN_FLAGS_READONLY)
539	{
540	parallelsFreeImage(pImage, false);
541	rc = parallelsOpenImage(pImage, uOpenFlags);
542	}
543
544	if (RT_SUCCESS(rc))
545	*ppBackendData = pImage;
546	}
547
548	if (RT_FAILURE(rc))
549	RTMemFree(pImage);
550	}
551	else
552	rc = VERR_NO_MEMORY;
553
554	LogFlowFunc(("returns %Rrc\n", rc));
555	return rc;
556	}
557
558	/** @copydoc VDIMAGEBACKEND::pfnRename */
559	static DECLCALLBACK(int) parallelsRename(void pBackendData, const char pszFilename)
560	{
561	LogFlowFunc(("pBackendData=%#p pszFilename=%#p\n", pBackendData, pszFilename));
562	int rc = VINF_SUCCESS;
563	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
564
565	/* Check arguments. */
566	AssertReturn((pImage && pszFilename && *pszFilename), VERR_INVALID_PARAMETER);
567
568	/* Close the image. */
569	rc = parallelsFreeImage(pImage, false);
570	if (RT_SUCCESS(rc))
571	{
572	/* Rename the file. */
573	rc = vdIfIoIntFileMove(pImage->pIfIo, pImage->pszFilename, pszFilename, 0);
574	if (RT_SUCCESS(rc))
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	}
582	else
583	{
584	/* The move failed, try to reopen the original image. */
585	int rc2 = parallelsOpenImage(pImage, pImage->uOpenFlags);
586	if (RT_FAILURE(rc2))
587	rc = rc2;
588	}
589	}
590
591	LogFlowFunc(("returns %Rrc\n", rc));
592	return rc;
593	}
594
595	/** @copydoc VDIMAGEBACKEND::pfnClose */
596	static DECLCALLBACK(int) parallelsClose(void *pBackendData, bool fDelete)
597	{
598	LogFlowFunc(("pBackendData=%#p fDelete=%d\n", pBackendData, fDelete));
599	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
600	int rc = parallelsFreeImage(pImage, fDelete);
601	RTMemFree(pImage);
602
603	LogFlowFunc(("returns %Rrc\n", rc));
604	return rc;
605	}
606
607	/** @copydoc VDIMAGEBACKEND::pfnRead */
608	static DECLCALLBACK(int) parallelsRead(void *pBackendData, uint64_t uOffset, size_t cbToRead,
609	PVDIOCTX pIoCtx, size_t *pcbActuallyRead)
610	{
611	LogFlowFunc(("pBackendData=%#p uOffset=%llu pIoCtx=%#p cbToRead=%zu pcbActuallyRead=%#p\n",
612	pBackendData, uOffset, pIoCtx, cbToRead, pcbActuallyRead));
613	int rc = VINF_SUCCESS;
614	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
615	uint64_t uSector;
616	uint64_t uOffsetInFile;
617	uint32_t iIndexInAllocationTable;
618
619	AssertPtr(pImage);
620	Assert(uOffset % 512 == 0);
621	Assert(cbToRead % 512 == 0);
622
623	if (pImage->uImageFlags & VD_IMAGE_FLAGS_FIXED)
624	rc = vdIfIoIntFileReadUser(pImage->pIfIo, pImage->pStorage, uOffset,
625	pIoCtx, cbToRead);
626	else
627	{
628	/* Calculate offset in the real file. */
629	uSector = uOffset / 512;
630	/* One chunk in the file is always one track big. */
631	iIndexInAllocationTable = (uint32_t)(uSector / pImage->PCHSGeometry.cSectors);
632	uSector = uSector % pImage->PCHSGeometry.cSectors;
633
634	cbToRead = RT_MIN(cbToRead, (pImage->PCHSGeometry.cSectors - uSector)*512);
635
636	if (pImage->pAllocationBitmap[iIndexInAllocationTable] == 0)
637	rc = VERR_VD_BLOCK_FREE;
638	else
639	{
640	uOffsetInFile = (pImage->pAllocationBitmap[iIndexInAllocationTable] + uSector) * 512;
641	rc = vdIfIoIntFileReadUser(pImage->pIfIo, pImage->pStorage, uOffsetInFile,
642	pIoCtx, cbToRead);
643	}
644	}
645
646	*pcbActuallyRead = cbToRead;
647
648	LogFlowFunc(("returns %Rrc\n", rc));
649	return rc;
650	}
651
652	/** @copydoc VDIMAGEBACKEND::pfnWrite */
653	static DECLCALLBACK(int) parallelsWrite(void *pBackendData, uint64_t uOffset, size_t cbToWrite,
654	PVDIOCTX pIoCtx, size_t pcbWriteProcess, size_t pcbPreRead,
655	size_t *pcbPostRead, unsigned fWrite)
656	{
657	LogFlowFunc(("pBackendData=%#p uOffset=%llu pIoCtx=%#p cbToWrite=%zu pcbWriteProcess=%#p\n",
658	pBackendData, uOffset, pIoCtx, cbToWrite, pcbWriteProcess));
659	int rc = VINF_SUCCESS;
660	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
661	uint64_t uSector;
662	uint64_t uOffsetInFile;
663	uint32_t iIndexInAllocationTable;
664
665	AssertPtr(pImage);
666	Assert(uOffset % 512 == 0);
667	Assert(cbToWrite % 512 == 0);
668
669	if (pImage->uImageFlags & VD_IMAGE_FLAGS_FIXED)
670	rc = vdIfIoIntFileWriteUser(pImage->pIfIo, pImage->pStorage, uOffset,
671	pIoCtx, cbToWrite, NULL, NULL);
672	else
673	{
674	/* Calculate offset in the real file. */
675	uSector = uOffset / 512;
676	/* One chunk in the file is always one track big. */
677	iIndexInAllocationTable = (uint32_t)(uSector / pImage->PCHSGeometry.cSectors);
678	uSector = uSector % pImage->PCHSGeometry.cSectors;
679
680	cbToWrite = RT_MIN(cbToWrite, (pImage->PCHSGeometry.cSectors - uSector)*512);
681
682	if (pImage->pAllocationBitmap[iIndexInAllocationTable] == 0)
683	{
684	if (fWrite & VD_WRITE_NO_ALLOC)
685	{
686	pcbPreRead = uSector 512;
687	pcbPostRead = pImage->PCHSGeometry.cSectors 512 - cbToWrite - *pcbPreRead;
688
689	if (pcbWriteProcess)
690	*pcbWriteProcess = cbToWrite;
691	return VERR_VD_BLOCK_FREE;
692	}
693
694	/* Allocate new chunk in the file. */
695	Assert(uSector == 0);
696	AssertMsg(pImage->cbFileCurrent % 512 == 0, ("File size is not a multiple of 512\n"));
697	pImage->pAllocationBitmap[iIndexInAllocationTable] = (uint32_t)(pImage->cbFileCurrent / 512);
698	pImage->cbFileCurrent += pImage->PCHSGeometry.cSectors * 512;
699	pImage->fAllocationBitmapChanged = true;
700	uOffsetInFile = (uint64_t)pImage->pAllocationBitmap[iIndexInAllocationTable] * 512;
701
702	/*
703	* Write the new block at the current end of the file.
704	*/
705	rc = vdIfIoIntFileWriteUser(pImage->pIfIo, pImage->pStorage,
706	uOffsetInFile, pIoCtx, cbToWrite, NULL, NULL);
707	if (RT_SUCCESS(rc) \|\| (rc == VERR_VD_ASYNC_IO_IN_PROGRESS))
708	{
709	/* Write the changed allocation bitmap entry. */
710	/** @todo Error handling. */
711	rc = vdIfIoIntFileWriteMeta(pImage->pIfIo, pImage->pStorage,
712	sizeof(ParallelsHeader) + iIndexInAllocationTable * sizeof(uint32_t),
713	&pImage->pAllocationBitmap[iIndexInAllocationTable],
714	sizeof(uint32_t), pIoCtx,
715	NULL, NULL);
716	}
717
718	*pcbPreRead = 0;
719	*pcbPostRead = 0;
720	}
721	else
722	{
723	uOffsetInFile = (pImage->pAllocationBitmap[iIndexInAllocationTable] + uSector) * 512;
724	rc = vdIfIoIntFileWriteUser(pImage->pIfIo, pImage->pStorage,
725	uOffsetInFile, pIoCtx, cbToWrite, NULL, NULL);
726	}
727	}
728
729	if (pcbWriteProcess)
730	*pcbWriteProcess = cbToWrite;
731
732	LogFlowFunc(("returns %Rrc\n", rc));
733	return rc;
734	}
735
736	/** @copydoc VDIMAGEBACKEND::pfnFlush */
737	static DECLCALLBACK(int) parallelsFlush(void *pBackendData, PVDIOCTX pIoCtx)
738	{
739	int rc = VINF_SUCCESS;
740	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
741
742	LogFlowFunc(("pImage=#%p\n", pImage));
743
744	/* Flush the file, everything is up to date already. */
745	rc = vdIfIoIntFileFlush(pImage->pIfIo, pImage->pStorage, pIoCtx, NULL, NULL);
746
747	LogFlowFunc(("returns %Rrc\n", rc));
748	return rc;
749	}
750
751	/** @copydoc VDIMAGEBACKEND::pfnGetVersion */
752	static DECLCALLBACK(unsigned) parallelsGetVersion(void *pBackendData)
753	{
754	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
755	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
756
757	AssertPtrReturn(pImage, 0);
758
759	return PARALLELS_DISK_VERSION;
760	}
761
762	/** @copydoc VDIMAGEBACKEND::pfnGetFileSize */
763	static DECLCALLBACK(uint64_t) parallelsGetFileSize(void *pBackendData)
764	{
765	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
766	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
767	uint64_t cb = 0;
768
769	AssertPtrReturn(pImage, 0);
770
771	if (pImage->pStorage)
772	cb = pImage->cbFileCurrent;
773
774	LogFlowFunc(("returns %lld\n", cb));
775	return cb;
776	}
777
778	/** @copydoc VDIMAGEBACKEND::pfnGetPCHSGeometry */
779	static DECLCALLBACK(int) parallelsGetPCHSGeometry(void *pBackendData,
780	PVDGEOMETRY pPCHSGeometry)
781	{
782	LogFlowFunc(("pBackendData=%#p pPCHSGeometry=%#p\n", pBackendData, pPCHSGeometry));
783	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
784	int rc = VINF_SUCCESS;
785
786	AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
787
788	if (pImage->PCHSGeometry.cCylinders)
789	*pPCHSGeometry = pImage->PCHSGeometry;
790	else
791	rc = VERR_VD_GEOMETRY_NOT_SET;
792
793	LogFlowFunc(("returns %Rrc (PCHS=%u/%u/%u)\n", rc, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));
794	return rc;
795	}
796
797	/** @copydoc VDIMAGEBACKEND::pfnSetPCHSGeometry */
798	static DECLCALLBACK(int) parallelsSetPCHSGeometry(void *pBackendData,
799	PCVDGEOMETRY pPCHSGeometry)
800	{
801	LogFlowFunc(("pBackendData=%#p pPCHSGeometry=%#p PCHS=%u/%u/%u\n", pBackendData,
802	pPCHSGeometry, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));
803	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
804	int rc = VINF_SUCCESS;
805
806	AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
807
808	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
809	rc = VERR_VD_IMAGE_READ_ONLY;
810	else
811	pImage->PCHSGeometry = *pPCHSGeometry;
812
813	LogFlowFunc(("returns %Rrc\n", rc));
814	return rc;
815	}
816
817	/** @copydoc VDIMAGEBACKEND::pfnGetLCHSGeometry */
818	static DECLCALLBACK(int) parallelsGetLCHSGeometry(void *pBackendData,
819	PVDGEOMETRY pLCHSGeometry)
820	{
821	LogFlowFunc(("pBackendData=%#p pLCHSGeometry=%#p\n", pBackendData, pLCHSGeometry));
822	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
823	int rc = VINF_SUCCESS;
824
825	AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
826
827	if (pImage->LCHSGeometry.cCylinders)
828	*pLCHSGeometry = pImage->LCHSGeometry;
829	else
830	rc = VERR_VD_GEOMETRY_NOT_SET;
831
832	LogFlowFunc(("returns %Rrc (LCHS=%u/%u/%u)\n", rc, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
833	return rc;
834	}
835
836	/** @copydoc VDIMAGEBACKEND::pfnSetLCHSGeometry */
837	static DECLCALLBACK(int) parallelsSetLCHSGeometry(void *pBackendData,
838	PCVDGEOMETRY pLCHSGeometry)
839	{
840	LogFlowFunc(("pBackendData=%#p pLCHSGeometry=%#p LCHS=%u/%u/%u\n", pBackendData, pLCHSGeometry, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
841	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
842	int rc = VINF_SUCCESS;
843
844	AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
845
846	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
847	rc = VERR_VD_IMAGE_READ_ONLY;
848	else
849	pImage->LCHSGeometry = *pLCHSGeometry;
850
851	LogFlowFunc(("returns %Rrc\n", rc));
852	return rc;
853	}
854
855	/** @copydoc VDIMAGEBACKEND::pfnQueryRegions */
856	static DECLCALLBACK(int) parallelsQueryRegions(void pBackendData, PCVDREGIONLIST ppRegionList)
857	{
858	LogFlowFunc(("pBackendData=%#p ppRegionList=%#p\n", pBackendData, ppRegionList));
859	PPARALLELSIMAGE pThis = (PPARALLELSIMAGE)pBackendData;
860
861	AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
862
863	*ppRegionList = &pThis->RegionList;
864	LogFlowFunc(("returns %Rrc\n", VINF_SUCCESS));
865	return VINF_SUCCESS;
866	}
867
868	/** @copydoc VDIMAGEBACKEND::pfnRegionListRelease */
869	static DECLCALLBACK(void) parallelsRegionListRelease(void *pBackendData, PCVDREGIONLIST pRegionList)
870	{
871	RT_NOREF1(pRegionList);
872	LogFlowFunc(("pBackendData=%#p pRegionList=%#p\n", pBackendData, pRegionList));
873	PPARALLELSIMAGE pThis = (PPARALLELSIMAGE)pBackendData;
874	AssertPtr(pThis); RT_NOREF(pThis);
875
876	/* Nothing to do here. */
877	}
878
879	/** @copydoc VDIMAGEBACKEND::pfnGetImageFlags */
880	static DECLCALLBACK(unsigned) parallelsGetImageFlags(void *pBackendData)
881	{
882	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
883	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
884
885	AssertPtrReturn(pImage, 0);
886
887	LogFlowFunc(("returns %#x\n", pImage->uImageFlags));
888	return pImage->uImageFlags;
889	}
890
891	/** @copydoc VDIMAGEBACKEND::pfnGetOpenFlags */
892	static DECLCALLBACK(unsigned) parallelsGetOpenFlags(void *pBackendData)
893	{
894	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
895	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
896
897	AssertPtrReturn(pImage, 0);
898
899	LogFlowFunc(("returns %#x\n", pImage->uOpenFlags));
900	return pImage->uOpenFlags;
901	}
902
903	/** @copydoc VDIMAGEBACKEND::pfnSetOpenFlags */
904	static DECLCALLBACK(int) parallelsSetOpenFlags(void *pBackendData, unsigned uOpenFlags)
905	{
906	LogFlowFunc(("pBackendData=%#p\n uOpenFlags=%#x", pBackendData, uOpenFlags));
907	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
908	int rc = VINF_SUCCESS;
909
910	/* Image must be opened and the new flags must be valid. */
911	if (!pImage \|\| (uOpenFlags & ~( VD_OPEN_FLAGS_READONLY \| VD_OPEN_FLAGS_INFO
912	\| VD_OPEN_FLAGS_ASYNC_IO \| VD_OPEN_FLAGS_SHAREABLE
913	\| VD_OPEN_FLAGS_SEQUENTIAL \| VD_OPEN_FLAGS_SKIP_CONSISTENCY_CHECKS)))
914	rc = VERR_INVALID_PARAMETER;
915	else
916	{
917	/* Implement this operation via reopening the image. */
918	parallelsFreeImage(pImage, false);
919	rc = parallelsOpenImage(pImage, uOpenFlags);
920	}
921
922	LogFlowFunc(("returns %Rrc\n", rc));
923	return rc;
924	}
925
926	/** @copydoc VDIMAGEBACKEND::pfnGetComment */
927	static DECLCALLBACK(int) parallelsGetComment(void pBackendData, char pszComment,
928	size_t cbComment)
929	{
930	RT_NOREF2(pszComment, cbComment);
931	LogFlowFunc(("pBackendData=%#p pszComment=%#p cbComment=%zu\n", pBackendData, pszComment, cbComment));
932	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
933
934	AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
935
936	LogFlowFunc(("returns %Rrc comment='%s'\n", VERR_NOT_SUPPORTED, pszComment));
937	return VERR_NOT_SUPPORTED;
938	}
939
940	/** @copydoc VDIMAGEBACKEND::pfnSetComment */
941	static DECLCALLBACK(int) parallelsSetComment(void pBackendData, const char pszComment)
942	{
943	RT_NOREF1(pszComment);
944	LogFlowFunc(("pBackendData=%#p pszComment=\"%s\"\n", pBackendData, pszComment));
945	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
946
947	AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
948
949	int rc;
950	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
951	rc = VERR_VD_IMAGE_READ_ONLY;
952	else
953	rc = VERR_NOT_SUPPORTED;
954
955	LogFlowFunc(("returns %Rrc\n", rc));
956	return rc;
957	}
958
959	/** @copydoc VDIMAGEBACKEND::pfnGetUuid */
960	static DECLCALLBACK(int) parallelsGetUuid(void *pBackendData, PRTUUID pUuid)
961	{
962	RT_NOREF1(pUuid);
963	LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
964	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
965
966	AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
967
968	LogFlowFunc(("returns %Rrc (%RTuuid)\n", VERR_NOT_SUPPORTED, pUuid));
969	return VERR_NOT_SUPPORTED;
970	}
971
972	/** @copydoc VDIMAGEBACKEND::pfnSetUuid */
973	static DECLCALLBACK(int) parallelsSetUuid(void *pBackendData, PCRTUUID pUuid)
974	{
975	RT_NOREF1(pUuid);
976	LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
977	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
978
979	AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
980
981	int rc;
982	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
983	rc = VERR_VD_IMAGE_READ_ONLY;
984	else
985	rc = VERR_NOT_SUPPORTED;
986
987	LogFlowFunc(("returns %Rrc\n", rc));
988	return rc;
989	}
990
991	/** @copydoc VDIMAGEBACKEND::pfnGetModificationUuid */
992	static DECLCALLBACK(int) parallelsGetModificationUuid(void *pBackendData, PRTUUID pUuid)
993	{
994	RT_NOREF1(pUuid);
995	LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
996	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
997
998	AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
999
1000	LogFlowFunc(("returns %Rrc (%RTuuid)\n", VERR_NOT_SUPPORTED, pUuid));
1001	return VERR_NOT_SUPPORTED;
1002	}
1003
1004	/** @copydoc VDIMAGEBACKEND::pfnSetModificationUuid */
1005	static DECLCALLBACK(int) parallelsSetModificationUuid(void *pBackendData, PCRTUUID pUuid)
1006	{
1007	RT_NOREF1(pUuid);
1008	LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
1009	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1010
1011	AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
1012
1013	int rc;
1014	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
1015	rc = VERR_VD_IMAGE_READ_ONLY;
1016	else
1017	rc = VERR_NOT_SUPPORTED;
1018
1019	LogFlowFunc(("returns %Rrc\n", rc));
1020	return rc;
1021	}
1022
1023	/** @copydoc VDIMAGEBACKEND::pfnGetParentUuid */
1024	static DECLCALLBACK(int) parallelsGetParentUuid(void *pBackendData, PRTUUID pUuid)
1025	{
1026	RT_NOREF1(pUuid);
1027	LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
1028	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1029
1030	AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
1031
1032	LogFlowFunc(("returns %Rrc (%RTuuid)\n", VERR_NOT_SUPPORTED, pUuid));
1033	return VERR_NOT_SUPPORTED;
1034	}
1035
1036	/** @copydoc VDIMAGEBACKEND::pfnSetParentUuid */
1037	static DECLCALLBACK(int) parallelsSetParentUuid(void *pBackendData, PCRTUUID pUuid)
1038	{
1039	RT_NOREF1(pUuid);
1040	LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
1041	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1042
1043	AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
1044
1045	int rc;
1046	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
1047	rc = VERR_VD_IMAGE_READ_ONLY;
1048	else
1049	rc = VERR_NOT_SUPPORTED;
1050
1051	LogFlowFunc(("returns %Rrc\n", rc));
1052	return rc;
1053	}
1054
1055	/** @copydoc VDIMAGEBACKEND::pfnGetParentModificationUuid */
1056	static DECLCALLBACK(int) parallelsGetParentModificationUuid(void *pBackendData, PRTUUID pUuid)
1057	{
1058	RT_NOREF1(pUuid);
1059	LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
1060	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1061
1062	AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
1063
1064	int rc;
1065	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
1066	rc = VERR_VD_IMAGE_READ_ONLY;
1067	else
1068	rc = VERR_NOT_SUPPORTED;
1069
1070	LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
1071	return rc;
1072	}
1073
1074	/** @copydoc VDIMAGEBACKEND::pfnSetParentModificationUuid */
1075	static DECLCALLBACK(int) parallelsSetParentModificationUuid(void *pBackendData, PCRTUUID pUuid)
1076	{
1077	RT_NOREF1(pUuid);
1078	LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
1079	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1080
1081	AssertPtrReturn(pImage, VERR_VD_NOT_OPENED);
1082
1083	int rc;
1084	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
1085	rc = VERR_VD_IMAGE_READ_ONLY;
1086	else
1087	rc = VERR_NOT_SUPPORTED;
1088
1089	LogFlowFunc(("returns %Rrc\n", rc));
1090	return rc;
1091	}
1092
1093	/** @copydoc VDIMAGEBACKEND::pfnDump */
1094	static DECLCALLBACK(void) parallelsDump(void *pBackendData)
1095	{
1096	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1097
1098	AssertPtrReturnVoid(pImage);
1099	vdIfErrorMessage(pImage->pIfError, "Header: Geometry PCHS=%u/%u/%u LCHS=%u/%u/%u\n",
1100	pImage->PCHSGeometry.cCylinders, pImage->PCHSGeometry.cHeads, pImage->PCHSGeometry.cSectors,
1101	pImage->LCHSGeometry.cCylinders, pImage->LCHSGeometry.cHeads, pImage->LCHSGeometry.cSectors);
1102	}
1103
1104
1105
1106	const VDIMAGEBACKEND g_ParallelsBackend =
1107	{
1108	/* u32Version */
1109	VD_IMGBACKEND_VERSION,
1110	/* pszBackendName */
1111	"Parallels",
1112	/* uBackendCaps */
1113	VD_CAP_FILE \| VD_CAP_ASYNC \| VD_CAP_VFS \| VD_CAP_CREATE_DYNAMIC \| VD_CAP_DIFF,
1114	/* paFileExtensions */
1115	s_aParallelsFileExtensions,
1116	/* paConfigInfo */
1117	NULL,
1118	/* pfnProbe */
1119	parallelsProbe,
1120	/* pfnOpen */
1121	parallelsOpen,
1122	/* pfnCreate */
1123	parallelsCreate,
1124	/* pfnRename */
1125	parallelsRename,
1126	/* pfnClose */
1127	parallelsClose,
1128	/* pfnRead */
1129	parallelsRead,
1130	/* pfnWrite */
1131	parallelsWrite,
1132	/* pfnFlush */
1133	parallelsFlush,
1134	/* pfnDiscard */
1135	NULL,
1136	/* pfnGetVersion */
1137	parallelsGetVersion,
1138	/* pfnGetFileSize */
1139	parallelsGetFileSize,
1140	/* pfnGetPCHSGeometry */
1141	parallelsGetPCHSGeometry,
1142	/* pfnSetPCHSGeometry */
1143	parallelsSetPCHSGeometry,
1144	/* pfnGetLCHSGeometry */
1145	parallelsGetLCHSGeometry,
1146	/* pfnSetLCHSGeometry */
1147	parallelsSetLCHSGeometry,
1148	/* pfnQueryRegions */
1149	parallelsQueryRegions,
1150	/* pfnRegionListRelease */
1151	parallelsRegionListRelease,
1152	/* pfnGetImageFlags */
1153	parallelsGetImageFlags,
1154	/* pfnGetOpenFlags */
1155	parallelsGetOpenFlags,
1156	/* pfnSetOpenFlags */
1157	parallelsSetOpenFlags,
1158	/* pfnGetComment */
1159	parallelsGetComment,
1160	/* pfnSetComment */
1161	parallelsSetComment,
1162	/* pfnGetUuid */
1163	parallelsGetUuid,
1164	/* pfnSetUuid */
1165	parallelsSetUuid,
1166	/* pfnGetModificationUuid */
1167	parallelsGetModificationUuid,
1168	/* pfnSetModificationUuid */
1169	parallelsSetModificationUuid,
1170	/* pfnGetParentUuid */
1171	parallelsGetParentUuid,
1172	/* pfnSetParentUuid */
1173	parallelsSetParentUuid,
1174	/* pfnGetParentModificationUuid */
1175	parallelsGetParentModificationUuid,
1176	/* pfnSetParentModificationUuid */
1177	parallelsSetParentModificationUuid,
1178	/* pfnDump */
1179	parallelsDump,
1180	/* pfnGetTimestamp */
1181	NULL,
1182	/* pfnGetParentTimestamp */
1183	NULL,
1184	/* pfnSetParentTimestamp */
1185	NULL,
1186	/* pfnGetParentFilename */
1187	NULL,
1188	/* pfnSetParentFilename */
1189	NULL,
1190	/* pfnComposeLocation */
1191	genericFileComposeLocation,
1192	/* pfnComposeName */
1193	genericFileComposeName,
1194	/* pfnCompact */
1195	NULL,
1196	/* pfnResize */
1197	NULL,
1198	/* pfnRepair */
1199	NULL,
1200	/* pfnTraverseMetadata */
1201	NULL,
1202	/* u32VersionEnd */
1203	VD_IMGBACKEND_VERSION
1204	};

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source: vbox/trunk/src/VBox/Storage/Parallels.cpp@ 96973

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