Parallels.cpp@ 55180

Last change on this file since 55180 was 54430, checked in by vboxsync, 10 years ago
Storage/VD: make use of the image type (hdd/dvd/floppy) for sanity checking when creating disk images
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File size: 40.4 KB

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1	/* $Id: Parallels.cpp 54430 2015-02-24 10:43:16Z 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	* Static Variables *
102	*******************************************************************************/
103
104	/** NULL-terminated array of supported file extensions. */
105	static const VDFILEEXTENSION s_aParallelsFileExtensions[] =
106	{
107	{"hdd", VDTYPE_HDD},
108	{NULL, VDTYPE_INVALID}
109	};
110
111	/***************************************************
112	* Internal functions *
113	**************************************************/
114
115	/**
116	* Internal. Flush image data to disk.
117	*/
118	static int parallelsFlushImage(PPARALLELSIMAGE pImage)
119	{
120	int rc = VINF_SUCCESS;
121
122	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
123	return VINF_SUCCESS;
124
125	if ( !(pImage->uImageFlags & VD_IMAGE_FLAGS_FIXED)
126	&& (pImage->fAllocationBitmapChanged))
127	{
128	pImage->fAllocationBitmapChanged = false;
129	/* Write the allocation bitmap to the file. */
130	rc = vdIfIoIntFileWriteSync(pImage->pIfIo, pImage->pStorage,
131	sizeof(ParallelsHeader), pImage->pAllocationBitmap,
132	pImage->cAllocationBitmapEntries * sizeof(uint32_t));
133	if (RT_FAILURE(rc))
134	return rc;
135	}
136
137	/* Flush file. */
138	rc = vdIfIoIntFileFlushSync(pImage->pIfIo, pImage->pStorage);
139
140	LogFlowFunc(("returns %Rrc\n", rc));
141	return rc;
142	}
143
144	/**
145	* Internal. Free all allocated space for representing an image except pImage,
146	* and optionally delete the image from disk.
147	*/
148	static int parallelsFreeImage(PPARALLELSIMAGE pImage, bool fDelete)
149	{
150	int rc = VINF_SUCCESS;
151
152	/* Freeing a never allocated image (e.g. because the open failed) is
153	* not signalled as an error. After all nothing bad happens. */
154	if (pImage)
155	{
156	if (pImage->pStorage)
157	{
158	/* No point updating the file that is deleted anyway. */
159	if (!fDelete)
160	parallelsFlushImage(pImage);
161
162	rc = vdIfIoIntFileClose(pImage->pIfIo, pImage->pStorage);
163	pImage->pStorage = NULL;
164	}
165
166	if (pImage->pAllocationBitmap)
167	{
168	RTMemFree(pImage->pAllocationBitmap);
169	pImage->pAllocationBitmap = NULL;
170	}
171
172	if (fDelete && pImage->pszFilename)
173	vdIfIoIntFileDelete(pImage->pIfIo, pImage->pszFilename);
174	}
175
176	return rc;
177	}
178
179	static int parallelsOpenImage(PPARALLELSIMAGE pImage, unsigned uOpenFlags)
180	{
181	int rc = VINF_SUCCESS;
182	ParallelsHeader parallelsHeader;
183
184	pImage->pIfError = VDIfErrorGet(pImage->pVDIfsDisk);
185	pImage->pIfIo = VDIfIoIntGet(pImage->pVDIfsImage);
186	pImage->uOpenFlags = uOpenFlags;
187	AssertPtrReturn(pImage->pIfIo, VERR_INVALID_PARAMETER);
188
189	rc = vdIfIoIntFileOpen(pImage->pIfIo, pImage->pszFilename,
190	VDOpenFlagsToFileOpenFlags(uOpenFlags,
191	false /* fCreate */),
192	&pImage->pStorage);
193	if (RT_FAILURE(rc))
194	goto out;
195
196	rc = vdIfIoIntFileGetSize(pImage->pIfIo, pImage->pStorage, &pImage->cbFileCurrent);
197	if (RT_FAILURE(rc))
198	goto out;
199	AssertMsg(pImage->cbFileCurrent % 512 == 0, ("File size is not a multiple of 512\n"));
200
201	rc = vdIfIoIntFileReadSync(pImage->pIfIo, pImage->pStorage, 0,
202	&parallelsHeader, sizeof(parallelsHeader));
203	if (RT_FAILURE(rc))
204	goto out;
205
206	if (memcmp(parallelsHeader.HeaderIdentifier, PARALLELS_HEADER_MAGIC, 16))
207	{
208	/* Check if the file has hdd as extension. It is a fixed size raw image then. */
209	char *pszSuffix = RTPathSuffix(pImage->pszFilename);
210	if (strcmp(pszSuffix, ".hdd"))
211	{
212	rc = VERR_VD_PARALLELS_INVALID_HEADER;
213	goto out;
214	}
215
216	/* This is a fixed size image. */
217	pImage->uImageFlags \|= VD_IMAGE_FLAGS_FIXED;
218	pImage->cbSize = pImage->cbFileCurrent;
219
220	pImage->PCHSGeometry.cHeads = 16;
221	pImage->PCHSGeometry.cSectors = 63;
222	uint64_t cCylinders = pImage->cbSize / (512 * pImage->PCHSGeometry.cSectors * pImage->PCHSGeometry.cHeads);
223	pImage->PCHSGeometry.cCylinders = (uint32_t)cCylinders;
224	}
225	else
226	{
227	if (parallelsHeader.uVersion != PARALLELS_DISK_VERSION)
228	{
229	rc = VERR_NOT_SUPPORTED;
230	goto out;
231	}
232
233	if (parallelsHeader.cEntriesInAllocationBitmap > (1 << 30))
234	{
235	rc = VERR_NOT_SUPPORTED;
236	goto out;
237	}
238
239	Log(("cSectors=%u\n", parallelsHeader.cSectors));
240	pImage->cbSize = ((uint64_t)parallelsHeader.cSectors) * 512;
241	pImage->uImageFlags = VD_IMAGE_FLAGS_NONE;
242	pImage->cAllocationBitmapEntries = parallelsHeader.cEntriesInAllocationBitmap;
243	pImage->pAllocationBitmap = (uint32_t )RTMemAllocZ((uint32_t)pImage->cAllocationBitmapEntries sizeof(uint32_t));
244	if (!pImage->pAllocationBitmap)
245	{
246	rc = VERR_NO_MEMORY;
247	goto out;
248	}
249
250	rc = vdIfIoIntFileReadSync(pImage->pIfIo, pImage->pStorage,
251	sizeof(ParallelsHeader), pImage->pAllocationBitmap,
252	pImage->cAllocationBitmapEntries * sizeof(uint32_t));
253	if (RT_FAILURE(rc))
254	goto out;
255
256	pImage->PCHSGeometry.cCylinders = parallelsHeader.cCylinders;
257	pImage->PCHSGeometry.cHeads = parallelsHeader.cHeads;
258	pImage->PCHSGeometry.cSectors = parallelsHeader.cSectorsPerTrack;
259	}
260
261	out:
262	LogFlowFunc(("returns %Rrc\n", rc));
263	return rc;
264	}
265
266	/**
267	* Internal: Create a parallels image.
268	*/
269	static int parallelsCreateImage(PPARALLELSIMAGE pImage, uint64_t cbSize,
270	unsigned uImageFlags, const char *pszComment,
271	PCVDGEOMETRY pPCHSGeometry,
272	PCVDGEOMETRY pLCHSGeometry, unsigned uOpenFlags,
273	PFNVDPROGRESS pfnProgress, void *pvUser,
274	unsigned uPercentStart, unsigned uPercentSpan)
275	{
276	int rc = VINF_SUCCESS;
277	int32_t fOpen;
278
279	if (uImageFlags & VD_IMAGE_FLAGS_FIXED)
280	{
281	rc = vdIfError(pImage->pIfError, VERR_VD_INVALID_TYPE, RT_SRC_POS, N_("Parallels: cannot create fixed image '%s'. Create a raw image"), pImage->pszFilename);
282	goto out;
283	}
284
285	pImage->uOpenFlags = uOpenFlags & ~VD_OPEN_FLAGS_READONLY;
286	pImage->uImageFlags = uImageFlags;
287	pImage->PCHSGeometry = *pPCHSGeometry;
288	pImage->LCHSGeometry = *pLCHSGeometry;
289
290	if (!pImage->PCHSGeometry.cCylinders)
291	{
292	/* Set defaults. */
293	pImage->PCHSGeometry.cSectors = 63;
294	pImage->PCHSGeometry.cHeads = 16;
295	pImage->PCHSGeometry.cCylinders = pImage->cbSize / (512 * pImage->PCHSGeometry.cSectors * pImage->PCHSGeometry.cHeads);
296	}
297
298	pImage->pIfError = VDIfErrorGet(pImage->pVDIfsDisk);
299	pImage->pIfIo = VDIfIoIntGet(pImage->pVDIfsImage);
300	AssertPtrReturn(pImage->pIfIo, VERR_INVALID_PARAMETER);
301
302	/* Create image file. */
303	fOpen = VDOpenFlagsToFileOpenFlags(pImage->uOpenFlags, true /* fCreate */);
304	rc = vdIfIoIntFileOpen(pImage->pIfIo, pImage->pszFilename, fOpen, &pImage->pStorage);
305	if (RT_FAILURE(rc))
306	{
307	rc = vdIfError(pImage->pIfError, rc, RT_SRC_POS, N_("Parallels: cannot create image '%s'"), pImage->pszFilename);
308	goto out;
309	}
310
311	if (RT_SUCCESS(rc) && pfnProgress)
312	pfnProgress(pvUser, uPercentStart + uPercentSpan * 98 / 100);
313
314	/* Setup image state. */
315	pImage->cbSize = cbSize;
316	pImage->cAllocationBitmapEntries = cbSize / 512 / pImage->PCHSGeometry.cSectors;
317	if (pImage->cAllocationBitmapEntries * pImage->PCHSGeometry.cSectors * 512 < cbSize)
318	pImage->cAllocationBitmapEntries++;
319	pImage->fAllocationBitmapChanged = true;
320	pImage->cbFileCurrent = sizeof(ParallelsHeader) + pImage->cAllocationBitmapEntries * sizeof(uint32_t);
321	/* Round to next sector boundary. */
322	pImage->cbFileCurrent += 512 - pImage->cbFileCurrent % 512;
323	Assert(!(pImage->cbFileCurrent % 512));
324	pImage->pAllocationBitmap = (uint32_t )RTMemAllocZ(pImage->cAllocationBitmapEntries sizeof(uint32_t));
325	if (!pImage->pAllocationBitmap)
326	rc = VERR_NO_MEMORY;
327
328	if (RT_SUCCESS(rc))
329	{
330	ParallelsHeader Header;
331
332	memcpy(Header.HeaderIdentifier, PARALLELS_HEADER_MAGIC, sizeof(Header.HeaderIdentifier));
333	Header.uVersion = RT_H2LE_U32(PARALLELS_DISK_VERSION);
334	Header.cHeads = RT_H2LE_U32(pImage->PCHSGeometry.cHeads);
335	Header.cCylinders = RT_H2LE_U32(pImage->PCHSGeometry.cCylinders);
336	Header.cSectorsPerTrack = RT_H2LE_U32(pImage->PCHSGeometry.cSectors);
337	Header.cEntriesInAllocationBitmap = RT_H2LE_U32(pImage->cAllocationBitmapEntries);
338	Header.cSectors = RT_H2LE_U32(pImage->cbSize / 512);
339	memset(Header.Padding, 0, sizeof(Header.Padding));
340
341	/* Write header and allocation bitmap. */
342	rc = vdIfIoIntFileSetSize(pImage->pIfIo, pImage->pStorage, pImage->cbFileCurrent);
343	if (RT_SUCCESS(rc))
344	rc = vdIfIoIntFileWriteSync(pImage->pIfIo, pImage->pStorage, 0,
345	&Header, sizeof(Header));
346	if (RT_SUCCESS(rc))
347	rc = parallelsFlushImage(pImage); /* Writes the allocation bitmap. */
348	}
349
350	out:
351	if (RT_SUCCESS(rc) && pfnProgress)
352	pfnProgress(pvUser, uPercentStart + uPercentSpan);
353
354	if (RT_FAILURE(rc))
355	parallelsFreeImage(pImage, rc != VERR_ALREADY_EXISTS);
356	return rc;
357	}
358
359	/** @copydoc VBOXHDDBACKEND::pfnCheckIfValid */
360	static int parallelsCheckIfValid(const char *pszFilename, PVDINTERFACE pVDIfsDisk,
361	PVDINTERFACE pVDIfsImage, VDTYPE *penmType)
362	{
363	int rc;
364	PVDIOSTORAGE pStorage;
365	ParallelsHeader parallelsHeader;
366
367	PVDINTERFACEIOINT pIfIo = VDIfIoIntGet(pVDIfsImage);
368	AssertPtrReturn(pIfIo, VERR_INVALID_PARAMETER);
369
370	rc = vdIfIoIntFileOpen(pIfIo, pszFilename,
371	VDOpenFlagsToFileOpenFlags(VD_OPEN_FLAGS_READONLY,
372	false /* fCreate */),
373	&pStorage);
374	if (RT_FAILURE(rc))
375	return rc;
376
377	rc = vdIfIoIntFileReadSync(pIfIo, pStorage, 0, &parallelsHeader,
378	sizeof(ParallelsHeader));
379	if (RT_SUCCESS(rc))
380	{
381	if ( !memcmp(parallelsHeader.HeaderIdentifier, PARALLELS_HEADER_MAGIC, 16)
382	&& (parallelsHeader.uVersion == PARALLELS_DISK_VERSION))
383	rc = VINF_SUCCESS;
384	else
385	{
386	/*
387	* The image may be an fixed size image.
388	* Unfortunately fixed sized parallels images
389	* are just raw files hence no magic header to
390	* check for.
391	* The code succeeds if the file is a multiple
392	* of 512 and if the file extensions is *.hdd
393	*/
394	uint64_t cbFile;
395	char *pszSuffix;
396
397	rc = vdIfIoIntFileGetSize(pIfIo, pStorage, &cbFile);
398	if (RT_FAILURE(rc) \|\| ((cbFile % 512) != 0))
399	{
400	vdIfIoIntFileClose(pIfIo, pStorage);
401	return VERR_VD_PARALLELS_INVALID_HEADER;
402	}
403
404	pszSuffix = RTPathSuffix(pszFilename);
405	if (!pszSuffix \|\| strcmp(pszSuffix, ".hdd"))
406	rc = VERR_VD_PARALLELS_INVALID_HEADER;
407	else
408	rc = VINF_SUCCESS;
409	}
410	}
411
412	if (RT_SUCCESS(rc))
413	*penmType = VDTYPE_HDD;
414
415	vdIfIoIntFileClose(pIfIo, pStorage);
416	return rc;
417	}
418
419	/** @copydoc VBOXHDDBACKEND::pfnOpen */
420	static int parallelsOpen(const char *pszFilename, unsigned uOpenFlags,
421	PVDINTERFACE pVDIfsDisk, PVDINTERFACE pVDIfsImage,
422	VDTYPE enmType, void **ppBackendData)
423	{
424	LogFlowFunc(("pszFilename=\"%s\" uOpenFlags=%#x pVDIfsDisk=%#p pVDIfsImage=%#p enmType=%u ppBackendData=%#p\n", pszFilename, uOpenFlags, pVDIfsDisk, pVDIfsImage, enmType, ppBackendData));
425	int rc;
426	PPARALLELSIMAGE pImage;
427
428	NOREF(enmType); /*< @todo r=klaus make use of the type info. /
429
430	/* Check open flags. All valid flags are supported. */
431	if (uOpenFlags & ~VD_OPEN_FLAGS_MASK)
432	{
433	rc = VERR_INVALID_PARAMETER;
434	goto out;
435	}
436
437	/* Check remaining arguments. */
438	if ( !VALID_PTR(pszFilename)
439	\|\| !*pszFilename)
440	{
441	rc = VERR_INVALID_PARAMETER;
442	goto out;
443	}
444
445	pImage = (PPARALLELSIMAGE)RTMemAllocZ(sizeof(PARALLELSIMAGE));
446	if (!pImage)
447	{
448	rc = VERR_NO_MEMORY;
449	goto out;
450	}
451
452	pImage->pszFilename = pszFilename;
453	pImage->pStorage = NULL;
454	pImage->pVDIfsDisk = pVDIfsDisk;
455	pImage->pVDIfsImage = pVDIfsImage;
456	pImage->fAllocationBitmapChanged = false;
457
458	rc = parallelsOpenImage(pImage, uOpenFlags);
459	if (RT_SUCCESS(rc))
460	*ppBackendData = pImage;
461	else
462	RTMemFree(pImage);
463
464	out:
465	LogFlowFunc(("returns %Rrc (pBackendData=%#p)\n", rc, *ppBackendData));
466	return rc;
467	}
468
469	/** @copydoc VBOXHDDBACKEND::pfnCreate */
470	static int parallelsCreate(const char *pszFilename, uint64_t cbSize,
471	unsigned uImageFlags, const char *pszComment,
472	PCVDGEOMETRY pPCHSGeometry,
473	PCVDGEOMETRY pLCHSGeometry, PCRTUUID pUuid,
474	unsigned uOpenFlags, unsigned uPercentStart,
475	unsigned uPercentSpan, PVDINTERFACE pVDIfsDisk,
476	PVDINTERFACE pVDIfsImage,
477	PVDINTERFACE pVDIfsOperation, VDTYPE enmType,
478	void **ppBackendData)
479	{
480	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",
481	pszFilename, cbSize, uImageFlags, pszComment, pPCHSGeometry, pLCHSGeometry, pUuid, uOpenFlags, uPercentStart, uPercentSpan, pVDIfsDisk, pVDIfsImage, pVDIfsOperation, enmType, ppBackendData));
482	int rc = VINF_SUCCESS;
483	PPARALLELSIMAGE pImage;
484
485	PFNVDPROGRESS pfnProgress = NULL;
486	void *pvUser = NULL;
487	PVDINTERFACEPROGRESS pIfProgress = VDIfProgressGet(pVDIfsOperation);
488	if (pIfProgress)
489	{
490	pfnProgress = pIfProgress->pfnProgress;
491	pvUser = pIfProgress->Core.pvUser;
492	}
493
494	/* Check the VD container type. */
495	if (enmType != VDTYPE_HDD)
496	{
497	rc = VERR_VD_INVALID_TYPE;
498	goto out;
499	}
500
501	/* Check open flags. All valid flags are supported. */
502	if (uOpenFlags & ~VD_OPEN_FLAGS_MASK)
503	{
504	rc = VERR_INVALID_PARAMETER;
505	goto out;
506	}
507
508	/* Check remaining arguments. */
509	if ( !VALID_PTR(pszFilename)
510	\|\| !*pszFilename
511	\|\| !VALID_PTR(pPCHSGeometry)
512	\|\| !VALID_PTR(pLCHSGeometry))
513	{
514	rc = VERR_INVALID_PARAMETER;
515	goto out;
516	}
517
518	pImage = (PPARALLELSIMAGE)RTMemAllocZ(sizeof(PARALLELSIMAGE));
519	if (!pImage)
520	{
521	rc = VERR_NO_MEMORY;
522	goto out;
523	}
524	pImage->pszFilename = pszFilename;
525	pImage->pStorage = NULL;
526	pImage->pVDIfsDisk = pVDIfsDisk;
527	pImage->pVDIfsImage = pVDIfsImage;
528
529	rc = parallelsCreateImage(pImage, cbSize, uImageFlags, pszComment,
530	pPCHSGeometry, pLCHSGeometry, uOpenFlags,
531	pfnProgress, pvUser, uPercentStart, uPercentSpan);
532	if (RT_SUCCESS(rc))
533	{
534	/* So far the image is opened in read/write mode. Make sure the
535	* image is opened in read-only mode if the caller requested that. */
536	if (uOpenFlags & VD_OPEN_FLAGS_READONLY)
537	{
538	parallelsFreeImage(pImage, false);
539	rc = parallelsOpenImage(pImage, uOpenFlags);
540	if (RT_FAILURE(rc))
541	{
542	RTMemFree(pImage);
543	goto out;
544	}
545	}
546	*ppBackendData = pImage;
547	}
548	else
549	RTMemFree(pImage);
550
551	out:
552	LogFlowFunc(("returns %Rrc\n", rc));
553	return rc;
554	}
555
556	/** @copydoc VBOXHDDBACKEND::pfnRename */
557	static int parallelsRename(void pBackendData, const char pszFilename)
558	{
559	LogFlowFunc(("pBackendData=%#p pszFilename=%#p\n", pBackendData, pszFilename));
560	int rc = VINF_SUCCESS;
561	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
562
563	/* Check arguments. */
564	if ( !pImage
565	\|\| !pszFilename
566	\|\| !*pszFilename)
567	{
568	rc = VERR_INVALID_PARAMETER;
569	goto out;
570	}
571
572	/* Close the image. */
573	rc = parallelsFreeImage(pImage, false);
574	if (RT_FAILURE(rc))
575	goto out;
576
577	/* Rename the file. */
578	rc = vdIfIoIntFileMove(pImage->pIfIo, pImage->pszFilename, pszFilename, 0);
579	if (RT_FAILURE(rc))
580	{
581	/* The move failed, try to reopen the original image. */
582	int rc2 = parallelsOpenImage(pImage, pImage->uOpenFlags);
583	if (RT_FAILURE(rc2))
584	rc = rc2;
585
586	goto out;
587	}
588
589	/* Update pImage with the new information. */
590	pImage->pszFilename = pszFilename;
591
592	/* Open the old image with new name. */
593	rc = parallelsOpenImage(pImage, pImage->uOpenFlags);
594	if (RT_FAILURE(rc))
595	goto out;
596
597	out:
598	LogFlowFunc(("returns %Rrc\n", rc));
599	return rc;
600	}
601
602	/** @copydoc VBOXHDDBACKEND::pfnClose */
603	static int parallelsClose(void *pBackendData, bool fDelete)
604	{
605	LogFlowFunc(("pBackendData=%#p fDelete=%d\n", pBackendData, fDelete));
606	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
607	int rc;
608
609	rc = parallelsFreeImage(pImage, fDelete);
610	RTMemFree(pImage);
611
612	LogFlowFunc(("returns %Rrc\n", rc));
613	return rc;
614	}
615
616	/** @copydoc VBOXHDDBACKEND::pfnRead */
617	static int parallelsRead(void *pBackendData, uint64_t uOffset, size_t cbToRead,
618	PVDIOCTX pIoCtx, size_t *pcbActuallyRead)
619	{
620	LogFlowFunc(("pBackendData=%#p uOffset=%llu pIoCtx=%#p cbToRead=%zu pcbActuallyRead=%#p\n",
621	pBackendData, uOffset, pIoCtx, cbToRead, pcbActuallyRead));
622	int rc = VINF_SUCCESS;
623	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
624	uint64_t uSector;
625	uint64_t uOffsetInFile;
626	uint32_t iIndexInAllocationTable;
627
628	AssertPtr(pImage);
629	Assert(uOffset % 512 == 0);
630	Assert(cbToRead % 512 == 0);
631
632	if (pImage->uImageFlags & VD_IMAGE_FLAGS_FIXED)
633	rc = vdIfIoIntFileReadUser(pImage->pIfIo, pImage->pStorage, uOffset,
634	pIoCtx, cbToRead);
635	else
636	{
637	/* Calculate offset in the real file. */
638	uSector = uOffset / 512;
639	/* One chunk in the file is always one track big. */
640	iIndexInAllocationTable = (uint32_t)(uSector / pImage->PCHSGeometry.cSectors);
641	uSector = uSector % pImage->PCHSGeometry.cSectors;
642
643	cbToRead = RT_MIN(cbToRead, (pImage->PCHSGeometry.cSectors - uSector)*512);
644
645	if (pImage->pAllocationBitmap[iIndexInAllocationTable] == 0)
646	rc = VERR_VD_BLOCK_FREE;
647	else
648	{
649	uOffsetInFile = (pImage->pAllocationBitmap[iIndexInAllocationTable] + uSector) * 512;
650	rc = vdIfIoIntFileReadUser(pImage->pIfIo, pImage->pStorage, uOffsetInFile,
651	pIoCtx, cbToRead);
652	}
653	}
654
655	*pcbActuallyRead = cbToRead;
656
657	LogFlowFunc(("returns %Rrc\n", rc));
658	return rc;
659	}
660
661	/** @copydoc VBOXHDDBACKEND::pfnWrite */
662	static int parallelsWrite(void *pBackendData, uint64_t uOffset, size_t cbToWrite,
663	PVDIOCTX pIoCtx, size_t pcbWriteProcess, size_t pcbPreRead,
664	size_t *pcbPostRead, unsigned fWrite)
665	{
666	LogFlowFunc(("pBackendData=%#p uOffset=%llu pIoCtx=%#p cbToWrite=%zu pcbWriteProcess=%#p\n",
667	pBackendData, uOffset, pIoCtx, cbToWrite, pcbWriteProcess));
668	int rc = VINF_SUCCESS;
669	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
670	uint64_t uSector;
671	uint64_t uOffsetInFile;
672	uint32_t iIndexInAllocationTable;
673
674	AssertPtr(pImage);
675	Assert(uOffset % 512 == 0);
676	Assert(cbToWrite % 512 == 0);
677
678	if (pImage->uImageFlags & VD_IMAGE_FLAGS_FIXED)
679	rc = vdIfIoIntFileWriteUser(pImage->pIfIo, pImage->pStorage, uOffset,
680	pIoCtx, cbToWrite, NULL, NULL);
681	else
682	{
683	/* Calculate offset in the real file. */
684	uSector = uOffset / 512;
685	/* One chunk in the file is always one track big. */
686	iIndexInAllocationTable = (uint32_t)(uSector / pImage->PCHSGeometry.cSectors);
687	uSector = uSector % pImage->PCHSGeometry.cSectors;
688
689	cbToWrite = RT_MIN(cbToWrite, (pImage->PCHSGeometry.cSectors - uSector)*512);
690
691	if (pImage->pAllocationBitmap[iIndexInAllocationTable] == 0)
692	{
693	if (fWrite & VD_WRITE_NO_ALLOC)
694	{
695	pcbPreRead = uSector 512;
696	pcbPostRead = pImage->PCHSGeometry.cSectors 512 - cbToWrite - *pcbPreRead;
697
698	if (pcbWriteProcess)
699	*pcbWriteProcess = cbToWrite;
700	return VERR_VD_BLOCK_FREE;
701	}
702
703	/* Allocate new chunk in the file. */
704	Assert(uSector == 0);
705	AssertMsg(pImage->cbFileCurrent % 512 == 0, ("File size is not a multiple of 512\n"));
706	pImage->pAllocationBitmap[iIndexInAllocationTable] = (uint32_t)(pImage->cbFileCurrent / 512);
707	pImage->cbFileCurrent += pImage->PCHSGeometry.cSectors * 512;
708	pImage->fAllocationBitmapChanged = true;
709	uOffsetInFile = (uint64_t)pImage->pAllocationBitmap[iIndexInAllocationTable] * 512;
710
711	/*
712	* Write the new block at the current end of the file.
713	*/
714	rc = vdIfIoIntFileWriteUser(pImage->pIfIo, pImage->pStorage,
715	uOffsetInFile, pIoCtx, cbToWrite, NULL, NULL);
716	if (RT_SUCCESS(rc) \|\| (rc == VERR_VD_ASYNC_IO_IN_PROGRESS))
717	{
718	/* Write the changed allocation bitmap entry. */
719	/** @todo: Error handling. */
720	rc = vdIfIoIntFileWriteMeta(pImage->pIfIo, pImage->pStorage,
721	sizeof(ParallelsHeader) + iIndexInAllocationTable * sizeof(uint32_t),
722	&pImage->pAllocationBitmap[iIndexInAllocationTable],
723	sizeof(uint32_t), pIoCtx,
724	NULL, NULL);
725	}
726
727	*pcbPreRead = 0;
728	*pcbPostRead = 0;
729	}
730	else
731	{
732	uOffsetInFile = (pImage->pAllocationBitmap[iIndexInAllocationTable] + uSector) * 512;
733	rc = vdIfIoIntFileWriteUser(pImage->pIfIo, pImage->pStorage,
734	uOffsetInFile, pIoCtx, cbToWrite, NULL, NULL);
735	}
736	}
737
738	if (pcbWriteProcess)
739	*pcbWriteProcess = cbToWrite;
740
741	LogFlowFunc(("returns %Rrc\n", rc));
742	return rc;
743	}
744
745	/** @copydoc VBOXHDDBACKEND::pfnFlush */
746	static int parallelsFlush(void *pBackendData, PVDIOCTX pIoCtx)
747	{
748	int rc = VINF_SUCCESS;
749	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
750
751	LogFlowFunc(("pImage=#%p\n", pImage));
752
753	/* Flush the file, everything is up to date already. */
754	rc = vdIfIoIntFileFlush(pImage->pIfIo, pImage->pStorage, pIoCtx, NULL, NULL);
755
756	LogFlowFunc(("returns %Rrc\n", rc));
757	return rc;
758	}
759
760	/** @copydoc VBOXHDDBACKEND::pfnGetVersion */
761	static unsigned parallelsGetVersion(void *pBackendData)
762	{
763	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
764	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
765
766	AssertPtr(pImage);
767
768	if (pImage)
769	return PARALLELS_DISK_VERSION;
770	else
771	return 0;
772	}
773
774	/** @copydoc VBOXHDDBACKEND::pfnGetSectorSize */
775	static uint32_t parallelsGetSectorSize(void *pBackendData)
776	{
777	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
778	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
779	uint32_t cb = 0;
780
781	AssertPtr(pImage);
782
783	if (pImage && pImage->pStorage)
784	cb = 512;
785
786	LogFlowFunc(("returns %llu\n", cb));
787	return cb;
788	}
789
790	/** @copydoc VBOXHDDBACKEND::pfnGetSize */
791	static uint64_t parallelsGetSize(void *pBackendData)
792	{
793	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
794	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
795	uint64_t cb = 0;
796
797	AssertPtr(pImage);
798
799	if (pImage && pImage->pStorage)
800	cb = pImage->cbSize;
801
802	LogFlowFunc(("returns %llu\n", cb));
803	return cb;
804	}
805
806	/** @copydoc VBOXHDDBACKEND::pfnGetFileSize */
807	static uint64_t parallelsGetFileSize(void *pBackendData)
808	{
809	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
810	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
811	uint64_t cb = 0;
812
813	AssertPtr(pImage);
814
815	if (pImage && pImage->pStorage)
816	cb = pImage->cbFileCurrent;
817
818	LogFlowFunc(("returns %lld\n", cb));
819	return cb;
820	}
821
822	/** @copydoc VBOXHDDBACKEND::pfnGetPCHSGeometry */
823	static int parallelsGetPCHSGeometry(void *pBackendData,
824	PVDGEOMETRY pPCHSGeometry)
825	{
826	LogFlowFunc(("pBackendData=%#p pPCHSGeometry=%#p\n", pBackendData, pPCHSGeometry));
827	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
828	int rc;
829
830	AssertPtr(pImage);
831
832	if (pImage)
833	{
834	if (pImage->PCHSGeometry.cCylinders)
835	{
836	*pPCHSGeometry = pImage->PCHSGeometry;
837	rc = VINF_SUCCESS;
838	}
839	else
840	rc = VERR_VD_GEOMETRY_NOT_SET;
841	}
842	else
843	rc = VERR_VD_NOT_OPENED;
844
845	LogFlowFunc(("returns %Rrc (PCHS=%u/%u/%u)\n", rc, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));
846	return rc;
847	}
848
849	/** @copydoc VBOXHDDBACKEND::pfnSetPCHSGeometry */
850	static int parallelsSetPCHSGeometry(void *pBackendData,
851	PCVDGEOMETRY pPCHSGeometry)
852	{
853	LogFlowFunc(("pBackendData=%#p pPCHSGeometry=%#p PCHS=%u/%u/%u\n", pBackendData, pPCHSGeometry, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));
854	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
855	int rc;
856
857	AssertPtr(pImage);
858
859	if (pImage)
860	{
861	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
862	{
863	rc = VERR_VD_IMAGE_READ_ONLY;
864	goto out;
865	}
866
867	pImage->PCHSGeometry = *pPCHSGeometry;
868	rc = VINF_SUCCESS;
869	}
870	else
871	rc = VERR_VD_NOT_OPENED;
872
873	out:
874	LogFlowFunc(("returns %Rrc\n", rc));
875	return rc;
876	}
877
878	/** @copydoc VBOXHDDBACKEND::pfnGetLCHSGeometry */
879	static int parallelsGetLCHSGeometry(void *pBackendData,
880	PVDGEOMETRY pLCHSGeometry)
881	{
882	LogFlowFunc(("pBackendData=%#p pLCHSGeometry=%#p\n", pBackendData, pLCHSGeometry));
883	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
884	int rc;
885
886	AssertPtr(pImage);
887
888	if (pImage)
889	{
890	if (pImage->LCHSGeometry.cCylinders)
891	{
892	*pLCHSGeometry = pImage->LCHSGeometry;
893	rc = VINF_SUCCESS;
894	}
895	else
896	rc = VERR_VD_GEOMETRY_NOT_SET;
897	}
898	else
899	rc = VERR_VD_NOT_OPENED;
900
901	LogFlowFunc(("returns %Rrc (LCHS=%u/%u/%u)\n", rc, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
902	return rc;
903	}
904
905	/** @copydoc VBOXHDDBACKEND::pfnSetLCHSGeometry */
906	static int parallelsSetLCHSGeometry(void *pBackendData,
907	PCVDGEOMETRY pLCHSGeometry)
908	{
909	LogFlowFunc(("pBackendData=%#p pLCHSGeometry=%#p LCHS=%u/%u/%u\n", pBackendData, pLCHSGeometry, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
910	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
911	int rc;
912
913	AssertPtr(pImage);
914
915	if (pImage)
916	{
917	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
918	{
919	rc = VERR_VD_IMAGE_READ_ONLY;
920	goto out;
921	}
922
923	pImage->LCHSGeometry = *pLCHSGeometry;
924	rc = VINF_SUCCESS;
925	}
926	else
927	rc = VERR_VD_NOT_OPENED;
928
929	out:
930	LogFlowFunc(("returns %Rrc\n", rc));
931	return rc;
932	}
933
934	/** @copydoc VBOXHDDBACKEND::pfnGetImageFlags */
935	static unsigned parallelsGetImageFlags(void *pBackendData)
936	{
937	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
938	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
939	unsigned uImageFlags;
940
941	AssertPtr(pImage);
942
943	if (pImage)
944	uImageFlags = pImage->uImageFlags;
945	else
946	uImageFlags = 0;
947
948	LogFlowFunc(("returns %#x\n", uImageFlags));
949	return uImageFlags;
950	}
951
952	/** @copydoc VBOXHDDBACKEND::pfnGetOpenFlags */
953	static unsigned parallelsGetOpenFlags(void *pBackendData)
954	{
955	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
956	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
957	unsigned uOpenFlags;
958
959	AssertPtr(pImage);
960
961	if (pImage)
962	uOpenFlags = pImage->uOpenFlags;
963	else
964	uOpenFlags = 0;
965
966	LogFlowFunc(("returns %#x\n", uOpenFlags));
967	return uOpenFlags;
968	}
969
970	/** @copydoc VBOXHDDBACKEND::pfnSetOpenFlags */
971	static int parallelsSetOpenFlags(void *pBackendData, unsigned uOpenFlags)
972	{
973	LogFlowFunc(("pBackendData=%#p\n uOpenFlags=%#x", pBackendData, uOpenFlags));
974	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
975	int rc;
976
977	/* Image must be opened and the new flags must be valid. */
978	if (!pImage \|\| (uOpenFlags & ~( VD_OPEN_FLAGS_READONLY \| VD_OPEN_FLAGS_INFO
979	\| VD_OPEN_FLAGS_ASYNC_IO \| VD_OPEN_FLAGS_SHAREABLE
980	\| VD_OPEN_FLAGS_SEQUENTIAL \| VD_OPEN_FLAGS_SKIP_CONSISTENCY_CHECKS)))
981	{
982	rc = VERR_INVALID_PARAMETER;
983	goto out;
984	}
985
986	/* Implement this operation via reopening the image. */
987	parallelsFreeImage(pImage, false);
988	rc = parallelsOpenImage(pImage, uOpenFlags);
989
990	out:
991	LogFlowFunc(("returns %Rrc\n", rc));
992	return rc;
993	}
994
995	/** @copydoc VBOXHDDBACKEND::pfnGetComment */
996	static int parallelsGetComment(void pBackendData, char pszComment,
997	size_t cbComment)
998	{
999	LogFlowFunc(("pBackendData=%#p pszComment=%#p cbComment=%zu\n", pBackendData, pszComment, cbComment));
1000	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1001	int rc;
1002
1003	AssertPtr(pImage);
1004
1005	if (pImage)
1006	rc = VERR_NOT_SUPPORTED;
1007	else
1008	rc = VERR_VD_NOT_OPENED;
1009
1010	LogFlowFunc(("returns %Rrc comment='%s'\n", rc, pszComment));
1011	return rc;
1012	}
1013
1014	/** @copydoc VBOXHDDBACKEND::pfnSetComment */
1015	static int parallelsSetComment(void pBackendData, const char pszComment)
1016	{
1017	LogFlowFunc(("pBackendData=%#p pszComment=\"%s\"\n", pBackendData, pszComment));
1018	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1019	int rc;
1020
1021	AssertPtr(pImage);
1022
1023	if (pImage)
1024	{
1025	if (pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY)
1026	rc = VERR_VD_IMAGE_READ_ONLY;
1027	else
1028	rc = VERR_NOT_SUPPORTED;
1029	}
1030	else
1031	rc = VERR_VD_NOT_OPENED;
1032
1033	LogFlowFunc(("returns %Rrc\n", rc));
1034	return rc;
1035	}
1036
1037	/** @copydoc VBOXHDDBACKEND::pfnGetUuid */
1038	static int parallelsGetUuid(void *pBackendData, PRTUUID pUuid)
1039	{
1040	LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
1041	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1042	int rc;
1043
1044	AssertPtr(pImage);
1045
1046	if (pImage)
1047	rc = VERR_NOT_SUPPORTED;
1048	else
1049	rc = VERR_VD_NOT_OPENED;
1050
1051	LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
1052	return rc;
1053	}
1054
1055	/** @copydoc VBOXHDDBACKEND::pfnSetUuid */
1056	static int parallelsSetUuid(void *pBackendData, PCRTUUID pUuid)
1057	{
1058	LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
1059	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1060	int rc;
1061
1062	AssertPtr(pImage);
1063
1064	if (pImage)
1065	{
1066	if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
1067	rc = VERR_NOT_SUPPORTED;
1068	else
1069	rc = VERR_VD_IMAGE_READ_ONLY;
1070	}
1071	else
1072	rc = VERR_VD_NOT_OPENED;
1073
1074	LogFlowFunc(("returns %Rrc\n", rc));
1075	return rc;
1076	}
1077
1078	/** @copydoc VBOXHDDBACKEND::pfnGetModificationUuid */
1079	static int parallelsGetModificationUuid(void *pBackendData, PRTUUID pUuid)
1080	{
1081	LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
1082	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1083	int rc;
1084
1085	AssertPtr(pImage);
1086
1087	if (pImage)
1088	rc = VERR_NOT_SUPPORTED;
1089	else
1090	rc = VERR_VD_NOT_OPENED;
1091
1092	LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
1093	return rc;
1094	}
1095
1096	/** @copydoc VBOXHDDBACKEND::pfnSetModificationUuid */
1097	static int parallelsSetModificationUuid(void *pBackendData, PCRTUUID pUuid)
1098	{
1099	LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
1100	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1101	int rc;
1102
1103	AssertPtr(pImage);
1104
1105	if (pImage)
1106	{
1107	if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
1108	rc = VERR_NOT_SUPPORTED;
1109	else
1110	rc = VERR_VD_IMAGE_READ_ONLY;
1111	}
1112	else
1113	rc = VERR_VD_NOT_OPENED;
1114
1115	LogFlowFunc(("returns %Rrc\n", rc));
1116	return rc;
1117	}
1118
1119	/** @copydoc VBOXHDDBACKEND::pfnGetParentUuid */
1120	static int parallelsGetParentUuid(void *pBackendData, PRTUUID pUuid)
1121	{
1122	LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
1123	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1124	int rc;
1125
1126	AssertPtr(pImage);
1127
1128	if (pImage)
1129	rc = VERR_NOT_SUPPORTED;
1130	else
1131	rc = VERR_VD_NOT_OPENED;
1132
1133	LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
1134	return rc;
1135	}
1136
1137	/** @copydoc VBOXHDDBACKEND::pfnSetParentUuid */
1138	static int parallelsSetParentUuid(void *pBackendData, PCRTUUID pUuid)
1139	{
1140	LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
1141	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1142	int rc;
1143
1144	AssertPtr(pImage);
1145
1146	if (pImage)
1147	{
1148	if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
1149	rc = VERR_NOT_SUPPORTED;
1150	else
1151	rc = VERR_VD_IMAGE_READ_ONLY;
1152	}
1153	else
1154	rc = VERR_VD_NOT_OPENED;
1155
1156	LogFlowFunc(("returns %Rrc\n", rc));
1157	return rc;
1158	}
1159
1160	/** @copydoc VBOXHDDBACKEND::pfnGetParentModificationUuid */
1161	static int parallelsGetParentModificationUuid(void *pBackendData, PRTUUID pUuid)
1162	{
1163	LogFlowFunc(("pBackendData=%#p pUuid=%#p\n", pBackendData, pUuid));
1164	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1165	int rc;
1166
1167	AssertPtr(pImage);
1168
1169	if (pImage)
1170	rc = VERR_NOT_SUPPORTED;
1171	else
1172	rc = VERR_VD_NOT_OPENED;
1173
1174	LogFlowFunc(("returns %Rrc (%RTuuid)\n", rc, pUuid));
1175	return rc;
1176	}
1177
1178	/** @copydoc VBOXHDDBACKEND::pfnSetParentModificationUuid */
1179	static int parallelsSetParentModificationUuid(void *pBackendData, PCRTUUID pUuid)
1180	{
1181	LogFlowFunc(("pBackendData=%#p Uuid=%RTuuid\n", pBackendData, pUuid));
1182	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1183	int rc;
1184
1185	AssertPtr(pImage);
1186
1187	if (pImage)
1188	{
1189	if (!(pImage->uOpenFlags & VD_OPEN_FLAGS_READONLY))
1190	rc = VERR_NOT_SUPPORTED;
1191	else
1192	rc = VERR_VD_IMAGE_READ_ONLY;
1193	}
1194	else
1195	rc = VERR_VD_NOT_OPENED;
1196
1197	LogFlowFunc(("returns %Rrc\n", rc));
1198	return rc;
1199	}
1200
1201	/** @copydoc VBOXHDDBACKEND::pfnDump */
1202	static void parallelsDump(void *pBackendData)
1203	{
1204	PPARALLELSIMAGE pImage = (PPARALLELSIMAGE)pBackendData;
1205
1206	AssertPtr(pImage);
1207	if (pImage)
1208	{
1209	vdIfErrorMessage(pImage->pIfError, "Header: Geometry PCHS=%u/%u/%u LCHS=%u/%u/%u\n",
1210	pImage->PCHSGeometry.cCylinders, pImage->PCHSGeometry.cHeads, pImage->PCHSGeometry.cSectors,
1211	pImage->LCHSGeometry.cCylinders, pImage->LCHSGeometry.cHeads, pImage->LCHSGeometry.cSectors);
1212	}
1213	}
1214
1215
1216
1217	const VBOXHDDBACKEND g_ParallelsBackend =
1218	{
1219	/* pszBackendName */
1220	"Parallels",
1221	/* cbSize */
1222	sizeof(VBOXHDDBACKEND),
1223	/* uBackendCaps */
1224	VD_CAP_FILE \| VD_CAP_ASYNC \| VD_CAP_VFS \| VD_CAP_CREATE_DYNAMIC \| VD_CAP_DIFF,
1225	/* paFileExtensions */
1226	s_aParallelsFileExtensions,
1227	/* paConfigInfo */
1228	NULL,
1229	/* pfnCheckIfValid */
1230	parallelsCheckIfValid,
1231	/* pfnOpen */
1232	parallelsOpen,
1233	/* pfnCreate */
1234	parallelsCreate,
1235	/* pfnRename */
1236	parallelsRename,
1237	/* pfnClose */
1238	parallelsClose,
1239	/* pfnRead */
1240	parallelsRead,
1241	/* pfnWrite */
1242	parallelsWrite,
1243	/* pfnFlush */
1244	parallelsFlush,
1245	/* pfnDiscard */
1246	NULL,
1247	/* pfnGetVersion */
1248	parallelsGetVersion,
1249	/* pfnGetSectorSize */
1250	parallelsGetSectorSize,
1251	/* pfnGetSize */
1252	parallelsGetSize,
1253	/* pfnGetFileSize */
1254	parallelsGetFileSize,
1255	/* pfnGetPCHSGeometry */
1256	parallelsGetPCHSGeometry,
1257	/* pfnSetPCHSGeometry */
1258	parallelsSetPCHSGeometry,
1259	/* pfnGetLCHSGeometry */
1260	parallelsGetLCHSGeometry,
1261	/* pfnSetLCHSGeometry */
1262	parallelsSetLCHSGeometry,
1263	/* pfnGetImageFlags */
1264	parallelsGetImageFlags,
1265	/* pfnGetOpenFlags */
1266	parallelsGetOpenFlags,
1267	/* pfnSetOpenFlags */
1268	parallelsSetOpenFlags,
1269	/* pfnGetComment */
1270	parallelsGetComment,
1271	/* pfnSetComment */
1272	parallelsSetComment,
1273	/* pfnGetUuid */
1274	parallelsGetUuid,
1275	/* pfnSetUuid */
1276	parallelsSetUuid,
1277	/* pfnGetModificationUuid */
1278	parallelsGetModificationUuid,
1279	/* pfnSetModificationUuid */
1280	parallelsSetModificationUuid,
1281	/* pfnGetParentUuid */
1282	parallelsGetParentUuid,
1283	/* pfnSetParentUuid */
1284	parallelsSetParentUuid,
1285	/* pfnGetParentModificationUuid */
1286	parallelsGetParentModificationUuid,
1287	/* pfnSetParentModificationUuid */
1288	parallelsSetParentModificationUuid,
1289	/* pfnDump */
1290	parallelsDump,
1291	/* pfnGetTimeStamp */
1292	NULL,
1293	/* pfnGetParentTimeStamp */
1294	NULL,
1295	/* pfnSetParentTimeStamp */
1296	NULL,
1297	/* pfnGetParentFilename */
1298	NULL,
1299	/* pfnSetParentFilename */
1300	NULL,
1301	/* pfnComposeLocation */
1302	genericFileComposeLocation,
1303	/* pfnComposeName */
1304	genericFileComposeName,
1305	/* pfnCompact */
1306	NULL,
1307	/* pfnResize */
1308	NULL,
1309	/* pfnRepair */
1310	NULL,
1311	/* pfnTraverseMetadata */
1312	NULL
1313	};

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source: vbox/trunk/src/VBox/Storage/Parallels.cpp@ 55180

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