MachineImplMoveVM.cpp@ 81415

Last change on this file since 81415 was 81415, checked in by vboxsync, 5 years ago
Main/MachineImplMoveVM: simplify updatePathsToStateFiles (which is still very wrong, because it uses a method which is used for renaming VMs), because it used the method to update the snapshots too often (for each snapshot, when one call updates them all)
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1	/* $Id: MachineImplMoveVM.cpp 81415 2019-10-21 15:06:34Z vboxsync $ */
2	/** @file
3	* Implementation of MachineMoveVM
4	*/
5
6	/*
7	* Copyright (C) 2011-2019 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18	#define LOG_GROUP LOG_GROUP_MAIN_MACHINE
19	#include <iprt/fs.h>
20	#include <iprt/dir.h>
21	#include <iprt/file.h>
22	#include <iprt/path.h>
23	#include <iprt/cpp/utils.h>
24	#include <iprt/stream.h>
25	#include <VBox/com/ErrorInfo.h>
26
27	#include "MachineImplMoveVM.h"
28	#include "MediumFormatImpl.h"
29	#include "VirtualBoxImpl.h"
30	#include "LoggingNew.h"
31
32	typedef std::multimap<Utf8Str, Utf8Str> list_t;
33	typedef std::multimap<Utf8Str, Utf8Str>::const_iterator cit_t;
34	typedef std::multimap<Utf8Str, Utf8Str>::iterator it_t;
35	typedef std::pair <std::multimap<Utf8Str, Utf8Str>::iterator, std::multimap<Utf8Str, Utf8Str>::iterator> rangeRes_t;
36
37	struct fileList_t
38	{
39	HRESULT add(const Utf8Str &folder, const Utf8Str &file)
40	{
41	HRESULT rc = S_OK;
42	m_list.insert(std::make_pair(folder, file));
43	return rc;
44	}
45
46	HRESULT add(const Utf8Str &fullPath)
47	{
48	HRESULT rc = S_OK;
49	Utf8Str folder = fullPath;
50	folder.stripFilename();
51	Utf8Str filename = fullPath;
52	filename.stripPath();
53	m_list.insert(std::make_pair(folder, filename));
54	return rc;
55	}
56
57	HRESULT removeFileFromList(const Utf8Str &fullPath)
58	{
59	HRESULT rc = S_OK;
60	Utf8Str folder = fullPath;
61	folder.stripFilename();
62	Utf8Str filename = fullPath;
63	filename.stripPath();
64	rangeRes_t res = m_list.equal_range(folder);
65	for (it_t it=res.first; it!=res.second;)
66	{
67	if (it->second.equals(filename))
68	{
69	it_t it2 = it;
70	++it;
71	m_list.erase(it2);
72	}
73	else
74	++it;
75	}
76
77	return rc;
78	}
79
80	HRESULT removeFileFromList(const Utf8Str &path, const Utf8Str &fileName)
81	{
82	HRESULT rc = S_OK;
83	rangeRes_t res = m_list.equal_range(path);
84	for (it_t it=res.first; it!=res.second;)
85	{
86	if (it->second.equals(fileName))
87	{
88	it_t it2 = it;
89	++it;
90	m_list.erase(it2);
91	}
92	else
93	++it;
94	}
95	return rc;
96	}
97
98	HRESULT removeFolderFromList(const Utf8Str &path)
99	{
100	HRESULT rc = S_OK;
101	m_list.erase(path);
102	return rc;
103	}
104
105	rangeRes_t getFilesInRange(const Utf8Str &path)
106	{
107	rangeRes_t res;
108	res = m_list.equal_range(path);
109	return res;
110	}
111
112	std::list<Utf8Str> getFilesInList(const Utf8Str &path)
113	{
114	std::list<Utf8Str> list_;
115	rangeRes_t res = m_list.equal_range(path);
116	for (it_t it=res.first; it!=res.second; ++it)
117	list_.push_back(it->second);
118	return list_;
119	}
120
121
122	list_t m_list;
123
124	};
125
126
127	HRESULT MachineMoveVM::init()
128	{
129	HRESULT hrc = S_OK;
130
131	Utf8Str strTargetFolder;
132	/* adding a trailing slash if it's needed */
133	{
134	size_t len = m_targetPath.length() + 2;
135	if (len >= RTPATH_MAX)
136	return m_pMachine->setError(VBOX_E_IPRT_ERROR, m_pMachine->tr("The destination path exceeds the maximum value."));
137
138	/** @todo r=bird: I need to add a Utf8Str method or iprt/cxx/path.h thingy
139	* for doing this. We need this often and code like this doesn't
140	* need to be repeated and re-optimized in each instance... */
141	char *path = new char [len];
142	RTStrCopy(path, len, m_targetPath.c_str());
143	RTPathEnsureTrailingSeparator(path, len);
144	strTargetFolder = m_targetPath = path;
145	delete[] path;
146	}
147
148	/*
149	* We have a mode which user is able to request
150	* basic mode:
151	* - The images which are solely attached to the VM
152	* and located in the original VM folder will be moved.
153	*
154	* Comment: in the future some other modes can be added.
155	*/
156
157	RTFOFF cbTotal = 0;
158	RTFOFF cbFree = 0;
159	uint32_t cbBlock = 0;
160	uint32_t cbSector = 0;
161
162
163	int vrc = RTFsQuerySizes(strTargetFolder.c_str(), &cbTotal, &cbFree, &cbBlock, &cbSector);
164	if (FAILED(vrc))
165	return m_pMachine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc,
166	m_pMachine->tr("Unable to determine free space at move destination ('%s'): %Rrc"),
167	strTargetFolder.c_str(), vrc);
168
169	RTDIR hDir;
170	vrc = RTDirOpen(&hDir, strTargetFolder.c_str());
171	if (RT_FAILURE(vrc))
172	return m_pMachine->setErrorVrc(vrc);
173
174	Utf8Str strTempFile = strTargetFolder + "test.txt";
175	RTFILE hFile;
176	vrc = RTFileOpen(&hFile, strTempFile.c_str(), RTFILE_O_OPEN_CREATE \| RTFILE_O_READWRITE \| RTFILE_O_DENY_NONE);
177	if (RT_FAILURE(vrc))
178	{
179	RTDirClose(hDir);
180	return m_pMachine->setErrorVrc(vrc,
181	m_pMachine->tr("Can't create a test file test.txt in the %s. Check the access rights of the destination folder."),
182	strTargetFolder.c_str());
183	}
184
185	/** @todo r=vvp: Do we need to check each return result here? Looks excessively.
186	* And it's not so important for the test file.
187	* bird: I'd just do AssertRC on the same line, though the deletion
188	* of the test is a little important. */
189	vrc = RTFileClose(hFile); AssertRC(vrc);
190	RTFileDelete(strTempFile.c_str());
191	vrc = RTDirClose(hDir); AssertRC(vrc);
192
193	Log2(("blocks: total %RTfoff, free %RTfoff\n", cbTotal, cbFree));
194	Log2(("total space (Kb) %RTfoff (Mb) %RTfoff (Gb) %RTfoff\n", cbTotal/_1K, cbTotal/_1M, cbTotal/_1G));
195	Log2(("total free space (Kb) %RTfoff (Mb) %RTfoff (Gb) %RTfoff\n", cbFree/_1K, cbFree/_1M, cbFree/_1G));
196
197	RTFSPROPERTIES properties;
198	vrc = RTFsQueryProperties(strTargetFolder.c_str(), &properties);
199	if (FAILED(vrc))
200	return m_pMachine->setErrorVrc(vrc, "RTFsQueryProperties(%s): %Rrc", strTargetFolder.c_str(), vrc);
201
202	Log2(("disk properties: remote=%RTbool read only=%RTbool compressed=%RTbool\n",
203	properties.fRemote, properties.fReadOnly, properties.fCompressed));
204
205	/* Get the original VM path */
206	Utf8Str strSettingsFilePath;
207	Bstr bstr_settingsFilePath;
208	hrc = m_pMachine->COMGETTER(SettingsFilePath)(bstr_settingsFilePath.asOutParam());
209	if (FAILED(hrc))
210	return hrc;
211
212	strSettingsFilePath = bstr_settingsFilePath;
213	strSettingsFilePath.stripFilename();
214
215	m_vmFolders.insert(std::make_pair(VBox_SettingFolder, strSettingsFilePath));
216
217	/* Collect all files from the VM's folder */
218	fileList_t fullFileList;
219	hrc = getFilesList(strSettingsFilePath, fullFileList);
220	if (FAILED(hrc))
221	return hrc;
222
223	/*
224	* Collect all known folders used by the VM:
225	* - log folder;
226	* - state folder;
227	* - snapshot folder.
228	*/
229	Utf8Str strLogFolder;
230	Bstr bstr_logFolder;
231	hrc = m_pMachine->COMGETTER(LogFolder)(bstr_logFolder.asOutParam());
232	if (FAILED(hrc))
233	return hrc;
234
235	strLogFolder = bstr_logFolder;
236	if ( m_type.equals("basic")
237	&& RTPathStartsWith(strLogFolder.c_str(), strSettingsFilePath.c_str()))
238	m_vmFolders.insert(std::make_pair(VBox_LogFolder, strLogFolder));
239
240	Utf8Str strStateFilePath;
241	Bstr bstr_stateFilePath;
242	MachineState_T machineState;
243	hrc = m_pMachine->COMGETTER(State)(&machineState);
244	if (FAILED(hrc))
245	return hrc;
246
247	if (machineState == MachineState_Saved)
248	{
249	m_pMachine->COMGETTER(StateFilePath)(bstr_stateFilePath.asOutParam());
250	strStateFilePath = bstr_stateFilePath;
251	strStateFilePath.stripFilename();
252	if ( m_type.equals("basic")
253	&& RTPathStartsWith(strStateFilePath.c_str(), strSettingsFilePath.c_str()))
254	m_vmFolders.insert(std::make_pair(VBox_StateFolder, strStateFilePath));
255	}
256
257	Utf8Str strSnapshotFolder;
258	Bstr bstr_snapshotFolder;
259	hrc = m_pMachine->COMGETTER(SnapshotFolder)(bstr_snapshotFolder.asOutParam());
260	if (FAILED(hrc))
261	return hrc;
262
263	strSnapshotFolder = bstr_snapshotFolder;
264	if ( m_type.equals("basic")
265	&& RTPathStartsWith(strSnapshotFolder.c_str(), strSettingsFilePath.c_str()))
266	m_vmFolders.insert(std::make_pair(VBox_SnapshotFolder, strSnapshotFolder));
267
268	if (m_pMachine->i_isSnapshotMachine())
269	{
270	Bstr bstrSrcMachineId;
271	hrc = m_pMachine->COMGETTER(Id)(bstrSrcMachineId.asOutParam());
272	if (FAILED(hrc))
273	return hrc;
274
275	ComPtr<IMachine> newSrcMachine;
276	hrc = m_pMachine->i_getVirtualBox()->FindMachine(bstrSrcMachineId.raw(), newSrcMachine.asOutParam());
277	if (FAILED(hrc))
278	return hrc;
279	}
280
281	/* Add the current machine and all snapshot machines below this machine
282	* in a list for further processing.
283	*/
284
285	int64_t neededFreeSpace = 0;
286
287	/* Actual file list */
288	fileList_t actualFileList;
289	Utf8Str strTargetImageName;
290
291	machineList.push_back(m_pMachine);
292
293	{
294	ULONG cSnapshots = 0;
295	hrc = m_pMachine->COMGETTER(SnapshotCount)(&cSnapshots);
296	if (FAILED(hrc))
297	return hrc;
298
299	if (cSnapshots > 0)
300	{
301	Utf8Str id;
302	if (m_pMachine->i_isSnapshotMachine())
303	id = m_pMachine->i_getSnapshotId().toString();
304	ComPtr<ISnapshot> pSnapshot;
305	hrc = m_pMachine->FindSnapshot(Bstr(id).raw(), pSnapshot.asOutParam());
306	if (FAILED(hrc))
307	return hrc;
308	hrc = createMachineList(pSnapshot);
309	if (FAILED(hrc))
310	return hrc;
311	}
312	}
313
314	ULONG uCount = 1;//looks like it should be initialized by 1. See assertion in the Progress::setNextOperation()
315	ULONG uTotalWeight = 1;
316
317	/* The lists m_llMedias and m_llSaveStateFiles are filled in the queryMediasForAllStates() */
318	hrc = queryMediasForAllStates();
319	if (FAILED(hrc))
320	return hrc;
321
322	/* Calculate the total size of images. Fill m_finalMediumsMap */
323	{ /** The scope here for better reading, apart from that the variables have limited scope too */
324	uint64_t totalMediumsSize = 0;
325
326	for (size_t i = 0; i < m_llMedias.size(); ++i)
327	{
328	MEDIUMTASKCHAINMOVE &mtc = m_llMedias.at(i);
329	for (size_t a = mtc.chain.size(); a > 0; --a)
330	{
331	Bstr bstrLocation;
332	Utf8Str name = mtc.chain[a - 1].strBaseName;
333	ComPtr<IMedium> plMedium = mtc.chain[a - 1].pMedium;
334	hrc = plMedium->COMGETTER(Location)(bstrLocation.asOutParam());
335	if (FAILED(hrc))
336	return hrc;
337
338	Utf8Str strLocation = bstrLocation;
339
340	/* if an image is located in the actual VM folder it will be added to the actual list */
341	if (strLocation.startsWith(strSettingsFilePath))
342	{
343	LONG64 cbSize = 0;
344	hrc = plMedium->COMGETTER(Size)(&cbSize);
345	if (FAILED(hrc))
346	return hrc;
347
348	std::pair<std::map<Utf8Str, MEDIUMTASKMOVE>::iterator,bool> ret;
349	ret = m_finalMediumsMap.insert(std::make_pair(name, mtc.chain[a - 1]));
350	if (ret.second == true)
351	{
352	/* Calculate progress data */
353	++uCount;
354	uTotalWeight += mtc.chain[a - 1].uWeight;
355	totalMediumsSize += cbSize;
356	Log2(("Image %s was added into the moved list\n", name.c_str()));
357	}
358	}
359	}
360	}
361
362	Log2(("Total Size of images is %lld bytes\n", totalMediumsSize));
363	neededFreeSpace += totalMediumsSize;
364	}
365
366	/* Prepare data for moving ".sav" files */
367	{
368	uint64_t totalStateSize = 0;
369
370	for (size_t i = 0; i < m_llSaveStateFiles.size(); ++i)
371	{
372	uint64_t cbFile = 0;
373	SAVESTATETASKMOVE &sst = m_llSaveStateFiles.at(i);
374
375	Utf8Str name = sst.strSaveStateFile;
376	/* if a state file is located in the actual VM folder it will be added to the actual list */
377	if (RTPathStartsWith(name.c_str(), strSettingsFilePath.c_str()))
378	{
379	vrc = RTFileQuerySizeByPath(name.c_str(), &cbFile);
380	if (RT_SUCCESS(vrc))
381	{
382	std::pair<std::map<Utf8Str, SAVESTATETASKMOVE>::iterator,bool> ret;
383	ret = m_finalSaveStateFilesMap.insert(std::make_pair(name, sst));
384	if (ret.second == true)
385	{
386	totalStateSize += cbFile;
387	++uCount;
388	uTotalWeight += sst.uWeight;
389	Log2(("The state file %s was added into the moved list\n", name.c_str()));
390	}
391	}
392	else
393	{
394	Log2(("The state file %s wasn't added into the moved list. Couldn't get the file size.\n",
395	name.c_str()));
396	return m_pMachine->setErrorVrc(vrc,
397	m_pMachine->tr("Failed to get file size for '%s': %Rrc"),
398	name.c_str(), vrc);
399	}
400	}
401	}
402
403	neededFreeSpace += totalStateSize;
404	}
405
406	/* Prepare data for moving the log files */
407	{
408	Utf8Str strFolder = m_vmFolders[VBox_LogFolder];
409
410	if (RTPathExists(strFolder.c_str()))
411	{
412	uint64_t totalLogSize = 0;
413	hrc = getFolderSize(strFolder, totalLogSize);
414	if (SUCCEEDED(hrc))
415	{
416	neededFreeSpace += totalLogSize;
417	if (cbFree - neededFreeSpace <= _1M)
418	return m_pMachine->setError(E_FAIL,
419	m_pMachine->tr("Insufficient disk space available (%RTfoff needed, %RTfoff free)"),
420	neededFreeSpace, cbFree);
421
422	fileList_t filesList;
423	hrc = getFilesList(strFolder, filesList);
424	if (FAILED(hrc))
425	return hrc;
426
427	cit_t it = filesList.m_list.begin();
428	while (it != filesList.m_list.end())
429	{
430	Utf8Str strFile = it->first.c_str();
431	strFile.append(RTPATH_DELIMITER).append(it->second.c_str());
432
433	uint64_t cbFile = 0;
434	vrc = RTFileQuerySizeByPath(strFile.c_str(), &cbFile);
435	if (RT_SUCCESS(vrc))
436	{
437	uCount += 1;
438	uTotalWeight += (ULONG)((cbFile + _1M - 1) / _1M);
439	actualFileList.add(strFile);
440	Log2(("The log file %s added into the moved list\n", strFile.c_str()));
441	}
442	else
443	Log2(("The log file %s wasn't added into the moved list. Couldn't get the file size.\n", strFile.c_str()));
444	++it;
445	}
446	}
447	else
448	return hrc;
449	}
450	else
451	{
452	Log2(("Information: The original log folder %s doesn't exist\n", strFolder.c_str()));
453	hrc = S_OK;//it's not error in this case if there isn't an original log folder
454	}
455	}
456
457	LogRel(("Total space needed is %lld bytes\n", neededFreeSpace));
458	/* Check a target location on enough room */
459	if (cbFree - neededFreeSpace <= _1M)
460	{
461	LogRel(("but free space on destination is %RTfoff\n", cbFree));
462	return m_pMachine->setError(VBOX_E_IPRT_ERROR,
463	m_pMachine->tr("Insufficient disk space available (%RTfoff needed, %RTfoff free)"),
464	neededFreeSpace, cbFree);
465	}
466
467	/* Add step for .vbox machine setting file */
468	++uCount;
469	uTotalWeight += 1;
470
471	/* Reserve additional steps in case of failure and rollback all changes */
472	uTotalWeight += uCount;//just add 1 for each possible rollback operation
473	uCount += uCount;//and increase the steps twice
474
475	/* Init Progress instance */
476	{
477	hrc = m_pProgress->init(m_pMachine->i_getVirtualBox(),
478	static_cast<IMachine >(m_pMachine) / aInitiator */,
479	Utf8Str(m_pMachine->tr("Moving Machine")),
480	true /* fCancellable */,
481	uCount,
482	uTotalWeight,
483	Utf8Str(m_pMachine->tr("Initialize Moving")),
484	1);
485	if (FAILED(hrc))
486	return m_pMachine->setError(hrc,
487	m_pMachine->tr("Couldn't correctly setup the progress object for moving VM operation"));
488	}
489
490	/* save all VM data */
491	m_pMachine->i_setModified(Machine::IsModified_MachineData);
492	hrc = m_pMachine->SaveSettings();
493	if (FAILED(hrc))
494	return hrc;
495
496	LogFlowFuncLeave();
497
498	return hrc;
499	}
500
501	void MachineMoveVM::printStateFile(settings::SnapshotsList &snl)
502	{
503	settings::SnapshotsList::iterator it;
504	for (it = snl.begin(); it != snl.end(); ++it)
505	{
506	if (!it->strStateFile.isEmpty())
507	{
508	settings::Snapshot snap = (settings::Snapshot)(*it);
509	Log2(("snap.uuid = %s\n", snap.uuid.toStringCurly().c_str()));
510	Log2(("snap.strStateFile = %s\n", snap.strStateFile.c_str()));
511	}
512
513	if (!it->llChildSnapshots.empty())
514	printStateFile(it->llChildSnapshots);
515	}
516	}
517
518	/* static */
519	DECLCALLBACK(int) MachineMoveVM::updateProgress(unsigned uPercent, void *pvUser)
520	{
521	MachineMoveVM pTask = (MachineMoveVM **)pvUser;
522
523	if ( pTask
524	&& !pTask->m_pProgress.isNull())
525	{
526	BOOL fCanceled;
527	pTask->m_pProgress->COMGETTER(Canceled)(&fCanceled);
528	if (fCanceled)
529	return -1;
530	pTask->m_pProgress->SetCurrentOperationProgress(uPercent);
531	}
532	return VINF_SUCCESS;
533	}
534
535	/* static */
536	DECLCALLBACK(int) MachineMoveVM::copyFileProgress(unsigned uPercentage, void *pvUser)
537	{
538	ComObjPtr<Progress> pProgress = static_cast<ComObjPtr<Progress> >(pvUser);
539
540	BOOL fCanceled = false;
541	HRESULT rc = pProgress->COMGETTER(Canceled)(&fCanceled);
542	if (FAILED(rc)) return VERR_GENERAL_FAILURE;
543	/* If canceled by the user tell it to the copy operation. */
544	if (fCanceled) return VERR_CANCELLED;
545	/* Set the new process. */
546	rc = pProgress->SetCurrentOperationProgress(uPercentage);
547	if (FAILED(rc)) return VERR_GENERAL_FAILURE;
548
549	return VINF_SUCCESS;
550	}
551
552	/* static */
553	void MachineMoveVM::i_MoveVMThreadTask(MachineMoveVM *task)
554	{
555	LogFlowFuncEnter();
556	HRESULT hrc = S_OK;
557
558	MachineMoveVM *taskMoveVM = task;
559	ComObjPtr<Machine> &machine = taskMoveVM->m_pMachine;
560
561	AutoCaller autoCaller(machine);
562	// if (FAILED(autoCaller.rc())) return;//Should we return something here?
563
564	Utf8Str strTargetFolder = taskMoveVM->m_targetPath;
565	{
566	Bstr bstrMachineName;
567	hrc = machine->COMGETTER(Name)(bstrMachineName.asOutParam());
568	if (FAILED(hrc))
569	{
570	taskMoveVM->m_result = hrc;
571	if (!taskMoveVM->m_pProgress.isNull())
572	taskMoveVM->m_pProgress->i_notifyComplete(taskMoveVM->m_result);
573	return;
574	}
575	strTargetFolder.append(Utf8Str(bstrMachineName));
576	}
577
578	RTCList<Utf8Str> newFiles; /* All extra created files (save states, ...) */
579	RTCList<Utf8Str> originalFiles; /* All original files except images */
580	typedef std::map<Utf8Str, ComObjPtr<Medium> > MediumMap;
581	MediumMap mapOriginalMedium;
582
583	/*
584	* We have the couple modes which user is able to request
585	* basic mode:
586	* - The images which are solely attached to the VM
587	* and located in the original VM folder will be moved.
588	* All subfolders related to the original VM are also moved from the original location
589	* (Standard - snapshots and logs folders).
590	*
591	* canonical mode:
592	* - All disks tied with the VM will be moved into a new location if it's possible.
593	* All folders related to the original VM are also moved.
594	* This mode is intended to collect all files/images/snapshots related to the VM in the one place.
595	*
596	*/
597
598	/*
599	* A way to handle shareable disk:
600	* Collect the shareable disks attched to the VM.
601	* Get the machines whom the shareable disks attach to.
602	* Return an error if the state of any VM doesn't allow to move a shareable disk and
603	* this disk is located in the VM's folder (it means the disk is intended for "moving").
604	*/
605
606
607	/*
608	* Check new destination whether enough room for the VM or not. if "not" return an error.
609	* Make a copy of VM settings and a list with all files which are moved. Save the list on the disk.
610	* Start "move" operation.
611	* Check the result of operation.
612	* if the operation was successful:
613	* - delete all files in the original VM folder;
614	* - update VM disks info with new location;
615	* - update all other VM if it's needed;
616	* - update global settings
617	*/
618
619	try
620	{
621	/* Move all disks */
622	hrc = taskMoveVM->moveAllDisks(taskMoveVM->m_finalMediumsMap, strTargetFolder);
623	if (FAILED(hrc))
624	throw hrc;
625
626	/* Get Machine::Data here because moveAllDisks() change it */
627	Machine::Data *machineData = machine->mData.data();
628	settings::MachineConfigFile *machineConfFile = machineData->pMachineConfigFile;
629
630	/* Copy all save state files. */
631	Utf8Str strTrgSnapshotFolder;
632	{
633	/* When the current snapshot folder is absolute we reset it to the
634	* default relative folder. */
635	if (RTPathStartsWithRoot(machineConfFile->machineUserData.strSnapshotFolder.c_str()))
636	machineConfFile->machineUserData.strSnapshotFolder = "Snapshots";
637	machineConfFile->strStateFile = "";
638
639	/* The absolute name of the snapshot folder. */
640	strTrgSnapshotFolder = Utf8StrFmt("%s%c%s", strTargetFolder.c_str(), RTPATH_DELIMITER,
641	machineConfFile->machineUserData.strSnapshotFolder.c_str());
642
643	/* Check if a snapshot folder is necessary and if so doesn't already
644	* exists. */
645	if ( taskMoveVM->m_finalSaveStateFilesMap.size() != 0
646	&& !RTDirExists(strTrgSnapshotFolder.c_str()))
647	{
648	int vrc = RTDirCreateFullPath(strTrgSnapshotFolder.c_str(), 0700);
649	if (RT_FAILURE(vrc))
650	throw machine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc,
651	taskMoveVM->m_pMachine->tr("Could not create snapshots folder '%s' (%Rrc)"),
652	strTrgSnapshotFolder.c_str(), vrc);
653	}
654
655	std::map<Utf8Str, SAVESTATETASKMOVE>::iterator itState = taskMoveVM->m_finalSaveStateFilesMap.begin();
656	while (itState != taskMoveVM->m_finalSaveStateFilesMap.end())
657	{
658	const SAVESTATETASKMOVE &sst = itState->second;
659	const Utf8Str &strTrgSaveState = Utf8StrFmt("%s%c%s", strTrgSnapshotFolder.c_str(), RTPATH_DELIMITER,
660	RTPathFilename(sst.strSaveStateFile.c_str()));
661
662	/* Move to next sub-operation. */
663	hrc = taskMoveVM->m_pProgress->SetNextOperation(BstrFmt(machine->tr("Copy the save state file '%s' ..."),
664	RTPathFilename(sst.strSaveStateFile.c_str())).raw(),
665	sst.uWeight);
666	if (FAILED(hrc))
667	throw hrc;
668
669	int vrc = RTFileCopyEx(sst.strSaveStateFile.c_str(), strTrgSaveState.c_str(), 0,
670	MachineMoveVM::copyFileProgress, &taskMoveVM->m_pProgress);
671	if (RT_FAILURE(vrc))
672	throw machine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc,
673	taskMoveVM->m_pMachine->tr("Could not copy state file '%s' to '%s' (%Rrc)"),
674	sst.strSaveStateFile.c_str(),
675	strTrgSaveState.c_str(),
676	vrc);
677
678	/* save new file in case of restoring */
679	newFiles.append(strTrgSaveState);
680	/* save original file for deletion in the end */
681	originalFiles.append(sst.strSaveStateFile);
682	++itState;
683	}
684	}
685
686	/*
687	* Update state file path
688	* very important step!
689	*/
690	Log2(("Update state file path\n"));
691	/** @todo r=klaus: this update is not necessarily matching what the
692	* above code has set as the new folders, so it needs reimplementing */
693	taskMoveVM->updatePathsToStateFiles(taskMoveVM->m_vmFolders[VBox_SettingFolder],
694	strTargetFolder);
695
696	/*
697	* Moving Machine settings file
698	* The settings file are moved after all disks and snapshots because this file should be updated
699	* with actual information and only then should be moved.
700	*/
701	{
702	Log2(("Copy Machine settings file\n"));
703
704	hrc = taskMoveVM->m_pProgress->SetNextOperation(BstrFmt(machine->tr("Copy Machine settings file '%s' ..."),
705	machineConfFile->machineUserData.strName.c_str()).raw(),
706	1);
707	if (FAILED(hrc))
708	throw hrc;
709
710	Utf8Str strTargetSettingsFilePath = strTargetFolder;
711
712	/* Check a folder existing and create one if it's not */
713	if (!RTDirExists(strTargetSettingsFilePath.c_str()))
714	{
715	int vrc = RTDirCreateFullPath(strTargetSettingsFilePath.c_str(), 0700);
716	if (RT_FAILURE(vrc))
717	throw machine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc,
718	taskMoveVM->m_pMachine->tr("Could not create a home machine folder '%s' (%Rrc)"),
719	strTargetSettingsFilePath.c_str(), vrc);
720
721	Log2(("Created a home machine folder %s\n", strTargetSettingsFilePath.c_str()));
722	}
723
724	/* Create a full path */
725	Bstr bstrMachineName;
726	machine->COMGETTER(Name)(bstrMachineName.asOutParam());
727	if (FAILED(hrc))
728	throw hrc;
729	strTargetSettingsFilePath.append(RTPATH_DELIMITER).append(Utf8Str(bstrMachineName));
730	strTargetSettingsFilePath.append(".vbox");
731
732	Utf8Str strSettingsFilePath;
733	Bstr bstr_settingsFilePath;
734	machine->COMGETTER(SettingsFilePath)(bstr_settingsFilePath.asOutParam());
735	if (FAILED(hrc))
736	throw hrc;
737	strSettingsFilePath = bstr_settingsFilePath;
738
739	int vrc = RTFileCopyEx(strSettingsFilePath.c_str(), strTargetSettingsFilePath.c_str(), 0,
740	MachineMoveVM::copyFileProgress, &taskMoveVM->m_pProgress);
741	if (RT_FAILURE(vrc))
742	throw machine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc,
743	taskMoveVM->m_pMachine->tr("Could not copy the setting file '%s' to '%s' (%Rrc)"),
744	strSettingsFilePath.c_str(),
745	strTargetSettingsFilePath.stripFilename().c_str(),
746	vrc);
747
748	Log2(("The setting file %s has been copied into the folder %s\n",
749	strSettingsFilePath.c_str(), strTargetSettingsFilePath.stripFilename().c_str()));
750
751	/* save new file in case of restoring */
752	newFiles.append(strTargetSettingsFilePath);
753	/* save original file for deletion in the end */
754	originalFiles.append(strSettingsFilePath);
755	}
756
757	/* Moving Machine log files */
758	{
759	Log2(("Copy machine log files\n"));
760
761	if (taskMoveVM->m_vmFolders[VBox_LogFolder].isNotEmpty())
762	{
763	/* Check an original log folder existence */
764	if (RTDirExists(taskMoveVM->m_vmFolders[VBox_LogFolder].c_str()))
765	{
766	Utf8Str strTargetLogFolderPath = strTargetFolder;
767	strTargetLogFolderPath.append(RTPATH_DELIMITER).append("Logs");
768
769	/* Check a destination log folder existence and create one if it's not */
770	if (!RTDirExists(strTargetLogFolderPath.c_str()))
771	{
772	int vrc = RTDirCreateFullPath(strTargetLogFolderPath.c_str(), 0700);
773	if (RT_FAILURE(vrc))
774	throw machine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc,
775	taskMoveVM->m_pMachine->tr("Could not create log folder '%s' (%Rrc)"),
776	strTargetLogFolderPath.c_str(), vrc);
777
778	Log2(("Created a log machine folder %s\n", strTargetLogFolderPath.c_str()));
779	}
780
781	fileList_t filesList;
782	taskMoveVM->getFilesList(taskMoveVM->m_vmFolders[VBox_LogFolder], filesList);
783	cit_t it = filesList.m_list.begin();
784	while (it != filesList.m_list.end())
785	{
786	Utf8Str strFullSourceFilePath = it->first.c_str();
787	strFullSourceFilePath.append(RTPATH_DELIMITER).append(it->second.c_str());
788
789	Utf8Str strFullTargetFilePath = strTargetLogFolderPath;
790	strFullTargetFilePath.append(RTPATH_DELIMITER).append(it->second.c_str());
791
792	/* Move to next sub-operation. */
793	hrc = taskMoveVM->m_pProgress->SetNextOperation(BstrFmt(machine->tr("Copying the log file '%s' ..."),
794	RTPathFilename(strFullSourceFilePath.c_str())).raw(),
795	1);
796	if (FAILED(hrc))
797	throw hrc;
798
799	int vrc = RTFileCopyEx(strFullSourceFilePath.c_str(), strFullTargetFilePath.c_str(), 0,
800	MachineMoveVM::copyFileProgress, &taskMoveVM->m_pProgress);
801	if (RT_FAILURE(vrc))
802	throw machine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc,
803	taskMoveVM->m_pMachine->tr("Could not copy the log file '%s' to '%s' (%Rrc)"),
804	strFullSourceFilePath.c_str(),
805	strFullTargetFilePath.stripFilename().c_str(),
806	vrc);
807
808	Log2(("The log file %s has been copied into the folder %s\n", strFullSourceFilePath.c_str(),
809	strFullTargetFilePath.stripFilename().c_str()));
810
811	/* save new file in case of restoring */
812	newFiles.append(strFullTargetFilePath);
813	/* save original file for deletion in the end */
814	originalFiles.append(strFullSourceFilePath);
815
816	++it;
817	}
818	}
819	}
820	}
821
822	/* save all VM data */
823	hrc = machine->SaveSettings();
824	if (FAILED(hrc))
825	throw hrc;
826
827	Log2(("Update path to XML setting file\n"));
828	Utf8Str strTargetSettingsFilePath = strTargetFolder;
829	Bstr bstrMachineName;
830	hrc = machine->COMGETTER(Name)(bstrMachineName.asOutParam());
831	if (FAILED(hrc))
832	throw hrc;
833	strTargetSettingsFilePath.append(RTPATH_DELIMITER).append(Utf8Str(bstrMachineName)).append(".vbox");
834	machineData->m_strConfigFileFull = strTargetSettingsFilePath;
835	machine->mParent->i_copyPathRelativeToConfig(strTargetSettingsFilePath, machineData->m_strConfigFile);
836
837	/* Marks the global registry for uuid as modified */
838	Guid uuid = machine->mData->mUuid;
839	machine->mParent->i_markRegistryModified(uuid);
840
841	/* for saving the global settings we should hold only the VirtualBox lock */
842	AutoWriteLock vboxLock(machine->mParent COMMA_LOCKVAL_SRC_POS);
843
844	/* Save global settings in the VirtualBox.xml */
845	hrc = machine->mParent->i_saveSettings();
846	if (FAILED(hrc))
847	throw hrc;
848	}
849	catch(HRESULT aRc)
850	{
851	hrc = aRc;
852	taskMoveVM->m_result = hrc;
853	}
854	catch (...)
855	{
856	Log2(("Moving machine to a new destination was failed. Check original and destination places.\n"));
857	hrc = VirtualBoxBase::handleUnexpectedExceptions(machine, RT_SRC_POS);
858	taskMoveVM->m_result = hrc;
859	}
860
861	/* Cleanup on failure */
862	if (FAILED(hrc))
863	{
864	Machine::Data *machineData = machine->mData.data();
865
866	/* Restoring the original mediums */
867	try
868	{
869	/*
870	* Fix the progress counter
871	* In instance, the whole "move vm" operation is failed on 5th step. But total count is 20.
872	* Where 20 = 2 * 10 operations, where 10 is the real number of operations. And this value was doubled
873	* earlier in the init() exactly for one reason - rollback operation. Because in this case we must do
874	* the same operations but in backward direction.
875	* Thus now we want to correct the progress counter from 5 to 15. Why?
876	* Because we should have evaluated the counter as "20/2 + (20/2 - 5)" = 15 or just "20 - 5" = 15
877	* And because the 5th step failed it shouldn't be counted.
878	* As result, we need to rollback 4 operations.
879	* Thus we start from "operation + 1" and finish when "i < operationCount - operation".
880	*/
881
882	/** @todo r=vvp: Do we need to check each return result here? Looks excessively
883	* and what to do with any failure here? We are already in the rollback action.
884	* Throw only the important errors?
885	* We MUST finish this action anyway to avoid garbage and get the original VM state. */
886	/* ! Apparently we should update the Progress object !*/
887	ULONG operationCount = 0;
888	hrc = taskMoveVM->m_pProgress->COMGETTER(OperationCount)(&operationCount);
889	if (FAILED(hrc))
890	throw hrc;
891	ULONG operation = 0;
892	hrc = taskMoveVM->m_pProgress->COMGETTER(Operation)(&operation);
893	if (FAILED(hrc))
894	throw hrc;
895	Bstr bstrOperationDescription;
896	hrc = taskMoveVM->m_pProgress->COMGETTER(OperationDescription)(bstrOperationDescription.asOutParam());
897	if (FAILED(hrc))
898	throw hrc;
899	Utf8Str strOperationDescription = bstrOperationDescription;
900	ULONG operationPercent = 0;
901	hrc = taskMoveVM->m_pProgress->COMGETTER(OperationPercent)(&operationPercent);
902	if (FAILED(hrc))
903	throw hrc;
904	Bstr bstrMachineName;
905	hrc = machine->COMGETTER(Name)(bstrMachineName.asOutParam());
906	if (FAILED(hrc))
907	throw hrc;
908
909	Log2(("Moving machine %s was failed on operation %s\n",
910	Utf8Str(bstrMachineName.raw()).c_str(), Utf8Str(bstrOperationDescription.raw()).c_str()));
911
912	for (ULONG i = operation + 1; i < operationCount - operation; ++i)
913	taskMoveVM->m_pProgress->SetNextOperation(BstrFmt("Skip the empty operation %d...", i + 1).raw(), 1);
914
915	hrc = taskMoveVM->moveAllDisks(taskMoveVM->m_finalMediumsMap);
916	if (FAILED(hrc))
917	throw hrc;
918
919	/* Revert original paths to the state files */
920	taskMoveVM->updatePathsToStateFiles(strTargetFolder,
921	taskMoveVM->m_vmFolders[VBox_SettingFolder]);
922
923	/* Delete all created files. Here we update progress object */
924	hrc = taskMoveVM->deleteFiles(newFiles);
925	if (FAILED(hrc))
926	{
927	Log2(("Rollback scenario: can't delete new created files. Check the destination folder.\n"));
928	throw hrc;
929	}
930
931	/* Delete destination folder */
932	int vrc = RTDirRemove(strTargetFolder.c_str());
933	if (RT_FAILURE(vrc))
934	{
935	Log2(("Rollback scenario: can't delete new destination folder.\n"));
936	throw machine->setErrorVrc(vrc, "Rollback scenario: can't delete new destination folder.");
937	}
938
939	/* save all VM data */
940	{
941	AutoWriteLock srcLock(machine COMMA_LOCKVAL_SRC_POS);
942	srcLock.release();
943	hrc = machine->SaveSettings();
944	if (FAILED(hrc))
945	{
946	Log2(("Rollback scenario: can't save machine settings.\n"));
947	throw hrc;
948	}
949	srcLock.acquire();
950	}
951
952	/* Restore an original path to XML setting file */
953	{
954	Log2(("Rollback scenario: restoration of the original path to XML setting file\n"));
955	Utf8Str strOriginalSettingsFilePath = taskMoveVM->m_vmFolders[VBox_SettingFolder];
956	strOriginalSettingsFilePath.append(RTPATH_DELIMITER).append(Utf8Str(bstrMachineName)).append(".vbox");
957	machineData->m_strConfigFileFull = strOriginalSettingsFilePath;
958	machine->mParent->i_copyPathRelativeToConfig(strOriginalSettingsFilePath, machineData->m_strConfigFile);
959	}
960
961	/* Marks the global registry for uuid as modified */
962	{
963	AutoWriteLock srcLock(machine COMMA_LOCKVAL_SRC_POS);
964	srcLock.release();
965	Guid uuid = machine->mData->mUuid;
966	machine->mParent->i_markRegistryModified(uuid);
967	srcLock.acquire();
968	}
969
970	/* save the global settings; for that we should hold only the VirtualBox lock */
971	{
972	AutoWriteLock vboxLock(machine->mParent COMMA_LOCKVAL_SRC_POS);
973	hrc = machine->mParent->i_saveSettings();
974	if (FAILED(hrc))
975	{
976	Log2(("Rollback scenario: can't save global settings.\n"));
977	throw hrc;
978	}
979	}
980	}
981	catch(HRESULT aRc)
982	{
983	hrc = aRc;
984	Log2(("Rollback scenario: restoration the original mediums were failed. Machine can be corrupted.\n"));
985	}
986	catch (...)
987	{
988	Log2(("Rollback scenario: restoration the original mediums were failed. Machine can be corrupted.\n"));
989	hrc = VirtualBoxBase::handleUnexpectedExceptions(machine, RT_SRC_POS);
990	}
991	/* In case of failure the progress object on the other side (user side) get notification about operation
992	completion but the operation percentage may not be set to 100% */
993	}
994	else /Operation was successful and now we can delete the original files like the state files, XML setting, log files /
995	{
996	/*
997	* In case of success it's not urgent to update the progress object because we call i_notifyComplete() with
998	* the success result. As result, the last number of progress operation can be not equal the number of operations
999	* because we doubled the number of operations for rollback case.
1000	* But if we want to update the progress object corectly it's needed to add all medium moved by standard
1001	* "move medium" logic (for us it's taskMoveVM->m_finalMediumsMap) to the current number of operation.
1002	*/
1003
1004	ULONG operationCount = 0;
1005	hrc = taskMoveVM->m_pProgress->COMGETTER(OperationCount)(&operationCount);
1006	ULONG operation = 0;
1007	hrc = taskMoveVM->m_pProgress->COMGETTER(Operation)(&operation);
1008
1009	for (ULONG i = operation; i < operation + taskMoveVM->m_finalMediumsMap.size() - 1; ++i)
1010	taskMoveVM->m_pProgress->SetNextOperation(BstrFmt("Skip the empty operation %d...", i).raw(), 1);
1011
1012	hrc = taskMoveVM->deleteFiles(originalFiles);
1013	if (FAILED(hrc))
1014	Log2(("Forward scenario: can't delete all original files.\n"));
1015	}
1016
1017	if (!taskMoveVM->m_pProgress.isNull())
1018	taskMoveVM->m_pProgress->i_notifyComplete(taskMoveVM->m_result);
1019
1020	LogFlowFuncLeave();
1021	}
1022
1023	HRESULT MachineMoveVM::moveAllDisks(const std::map<Utf8Str, MEDIUMTASKMOVE> &listOfDisks,
1024	const Utf8Str &strTargetFolder)
1025	{
1026	HRESULT rc = S_OK;
1027	ComObjPtr<Machine> &machine = m_pMachine;
1028	Utf8Str strLocation;
1029
1030	AutoWriteLock machineLock(machine COMMA_LOCKVAL_SRC_POS);
1031
1032	try
1033	{
1034	std::map<Utf8Str, MEDIUMTASKMOVE>::const_iterator itMedium = listOfDisks.begin();
1035	while (itMedium != listOfDisks.end())
1036	{
1037	const MEDIUMTASKMOVE &mt = itMedium->second;
1038	ComPtr<IMedium> pMedium = mt.pMedium;
1039	Utf8Str strTargetImageName;
1040	Bstr bstrLocation;
1041	Bstr bstrSrcName;
1042
1043	rc = pMedium->COMGETTER(Name)(bstrSrcName.asOutParam());
1044	if (FAILED(rc)) throw rc;
1045
1046	if (strTargetFolder.isNotEmpty())
1047	{
1048	strTargetImageName = strTargetFolder;
1049	rc = pMedium->COMGETTER(Location)(bstrLocation.asOutParam());
1050	if (FAILED(rc)) throw rc;
1051	strLocation = bstrLocation;
1052
1053	if (mt.fSnapshot == true)
1054	strLocation.stripFilename().stripPath().append(RTPATH_DELIMITER).append(Utf8Str(bstrSrcName));
1055	else
1056	strLocation.stripPath();
1057
1058	strTargetImageName.append(RTPATH_DELIMITER).append(strLocation);
1059	rc = m_pProgress->SetNextOperation(BstrFmt(machine->tr("Moving medium '%ls' ..."),
1060	bstrSrcName.raw()).raw(),
1061	mt.uWeight);
1062	if (FAILED(rc)) throw rc;
1063	}
1064	else
1065	{
1066	strTargetImageName = mt.strBaseName;//Should contain full path to the image
1067	rc = m_pProgress->SetNextOperation(BstrFmt(machine->tr("Moving medium '%ls' back..."),
1068	bstrSrcName.raw()).raw(),
1069	mt.uWeight);
1070	if (FAILED(rc)) throw rc;
1071	}
1072
1073
1074
1075	/* consistency: use \ if appropriate on the platform */
1076	RTPathChangeToDosSlashes(strTargetImageName.mutableRaw(), false);
1077
1078	bstrLocation = strTargetImageName.c_str();
1079
1080	MediumType_T mediumType;//immutable, shared, passthrough
1081	rc = pMedium->COMGETTER(Type)(&mediumType);
1082	if (FAILED(rc)) throw rc;
1083
1084	DeviceType_T deviceType;//floppy, hard, DVD
1085	rc = pMedium->COMGETTER(DeviceType)(&deviceType);
1086	if (FAILED(rc)) throw rc;
1087
1088	/* Drop lock early because IMedium::MoveTo needs to get the VirtualBox one. */
1089	machineLock.release();
1090
1091	ComPtr<IProgress> moveDiskProgress;
1092	rc = pMedium->MoveTo(bstrLocation.raw(), moveDiskProgress.asOutParam());
1093	if (SUCCEEDED(rc))
1094	{
1095	/* In case of failure moveDiskProgress would be in the invalid state or not initialized at all
1096	* Call i_waitForOtherProgressCompletion only in success
1097	*/
1098	/* Wait until the other process has finished. */
1099	rc = m_pProgress->WaitForOtherProgressCompletion(moveDiskProgress, 0 /* indefinite wait */);
1100	}
1101
1102	/acquire the lock back/
1103	machineLock.acquire();
1104
1105	if (FAILED(rc)) throw rc;
1106
1107	Log2(("Moving %s has been finished\n", strTargetImageName.c_str()));
1108
1109	++itMedium;
1110	}
1111
1112	machineLock.release();
1113	}
1114	catch(HRESULT hrc)
1115	{
1116	Log2(("Exception during moving the disk %s\n", strLocation.c_str()));
1117	rc = hrc;
1118	machineLock.release();
1119	}
1120	catch (...)
1121	{
1122	Log2(("Exception during moving the disk %s\n", strLocation.c_str()));
1123	rc = VirtualBoxBase::handleUnexpectedExceptions(m_pMachine, RT_SRC_POS);
1124	machineLock.release();
1125	}
1126
1127	return rc;
1128	}
1129
1130	void MachineMoveVM::updatePathsToStateFiles(const Utf8Str &sourcePath, const Utf8Str &targetPath)
1131	{
1132	ComObjPtr<Snapshot> pSnapshot;
1133	HRESULT rc = m_pMachine->i_findSnapshotById(Guid() /* zero */, pSnapshot, true);
1134	if (SUCCEEDED(rc) && !pSnapshot.isNull())
1135	pSnapshot->i_updateSavedStatePaths(sourcePath.c_str(),
1136	targetPath.c_str());
1137	if (RTPathStartsWith(m_pMachine->mSSData->strStateFilePath.c_str(), sourcePath.c_str()))
1138	m_pMachine->mSSData->strStateFilePath = Utf8StrFmt("%s%s",
1139	targetPath.c_str(),
1140	m_pMachine->mSSData->strStateFilePath.c_str() + sourcePath.length());
1141	else
1142	m_pMachine->mSSData->strStateFilePath = Utf8StrFmt("%s%c%s",
1143	targetPath.c_str(),
1144	RTPATH_DELIMITER,
1145	RTPathFilename(m_pMachine->mSSData->strStateFilePath.c_str()));
1146	}
1147
1148	HRESULT MachineMoveVM::getFilesList(const Utf8Str &strRootFolder, fileList_t &filesList)
1149	{
1150	RTDIR hDir;
1151	HRESULT hrc = S_OK;
1152	int vrc = RTDirOpen(&hDir, strRootFolder.c_str());
1153	if (RT_SUCCESS(vrc))
1154	{
1155	/** @todo r=bird: RTDIRENTRY is big and this function is doing
1156	* unrestrained recursion of arbritrary depth. Four things:
1157	* - Add a depth counter parameter and refuse to go deeper than
1158	* a certain reasonable limit.
1159	* - Split this method into a main and a worker, placing
1160	* RTDIRENTRY on the stack in the main and passing it onto to
1161	* worker as a parameter.
1162	* - RTDirRead may fail for reasons other than
1163	* VERR_NO_MORE_FILES. For instance someone could create an
1164	* entry with a name longer than RTDIRENTRY have space to
1165	* store (windows host with UTF-16 encoding shorter than 255
1166	* chars, but UTF-8 encoding longer than 260).
1167	* - enmType can be RTDIRENTRYTYPE_UNKNOWN if the file system or
1168	* the host doesn't return the information. See
1169	* RTDIRENTRY::enmType. Use RTDirQueryUnknownType() to get the
1170	* actual type. */
1171	RTDIRENTRY DirEntry;
1172	while (RT_SUCCESS(RTDirRead(hDir, &DirEntry, NULL)))
1173	{
1174	if (RTDirEntryIsStdDotLink(&DirEntry))
1175	continue;
1176
1177	if (DirEntry.enmType == RTDIRENTRYTYPE_FILE)
1178	{
1179	Utf8Str fullPath(strRootFolder);
1180	filesList.add(strRootFolder, DirEntry.szName);
1181	}
1182	else if (DirEntry.enmType == RTDIRENTRYTYPE_DIRECTORY)
1183	{
1184	Utf8Str strNextFolder(strRootFolder);
1185	strNextFolder.append(RTPATH_DELIMITER).append(DirEntry.szName);
1186	hrc = getFilesList(strNextFolder, filesList);
1187	if (FAILED(hrc))
1188	break;
1189	}
1190	}
1191
1192	vrc = RTDirClose(hDir);
1193	AssertRC(vrc);
1194	}
1195	else if (vrc == VERR_FILE_NOT_FOUND)
1196	hrc = m_pMachine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc,
1197	m_pMachine->tr("Folder '%s' doesn't exist (%Rrc)"),
1198	strRootFolder.c_str(), vrc);
1199	else
1200	hrc = m_pMachine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc,
1201	m_pMachine->tr("Could not open folder '%s' (%Rrc)"),
1202	strRootFolder.c_str(), vrc);
1203
1204	return hrc;
1205	}
1206
1207	HRESULT MachineMoveVM::deleteFiles(const RTCList<Utf8Str> &listOfFiles)
1208	{
1209	HRESULT hrc = S_OK;
1210	/* Delete all created files. */
1211	for (size_t i = 0; i < listOfFiles.size(); ++i)
1212	{
1213	Log2(("Deleting file %s ...\n", listOfFiles.at(i).c_str()));
1214	hrc = m_pProgress->SetNextOperation(BstrFmt("Deleting file %s...", listOfFiles.at(i).c_str()).raw(), 1);
1215	if (FAILED(hrc)) return hrc;
1216
1217	int vrc = RTFileDelete(listOfFiles.at(i).c_str());
1218	if (RT_FAILURE(vrc))
1219	return m_pMachine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc,
1220	m_pMachine->tr("Could not delete file '%s' (%Rrc)"),
1221	listOfFiles.at(i).c_str(), vrc);
1222
1223	else
1224	Log2(("File %s has been deleted\n", listOfFiles.at(i).c_str()));
1225	}
1226
1227	return hrc;
1228	}
1229
1230	HRESULT MachineMoveVM::getFolderSize(const Utf8Str &strRootFolder, uint64_t &size)
1231	{
1232	HRESULT hrc = S_OK;
1233	int vrc = 0;
1234	uint64_t totalFolderSize = 0;
1235	fileList_t filesList;
1236
1237	bool ex = RTPathExists(strRootFolder.c_str());
1238	if (ex == true)
1239	{
1240	hrc = getFilesList(strRootFolder, filesList);
1241	if (SUCCEEDED(hrc))
1242	{
1243	cit_t it = filesList.m_list.begin();
1244	while (it != filesList.m_list.end())
1245	{
1246	uint64_t cbFile = 0;
1247	Utf8Str fullPath = it->first;
1248	fullPath.append(RTPATH_DELIMITER).append(it->second);
1249	vrc = RTFileQuerySizeByPath(fullPath.c_str(), &cbFile);
1250	if (RT_SUCCESS(vrc))
1251	{
1252	totalFolderSize += cbFile;
1253	}
1254	else
1255	return m_pMachine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc,
1256	m_pMachine->tr("Could not get the size of file '%s': %Rrc"),
1257	fullPath.c_str(),
1258	vrc);
1259
1260	++it;
1261	}
1262
1263	size = totalFolderSize;
1264	}
1265	}
1266	else
1267	size = 0;
1268
1269	return hrc;
1270	}
1271
1272	HRESULT MachineMoveVM::queryBaseName(const ComPtr<IMedium> &pMedium, Utf8Str &strBaseName) const
1273	{
1274	ComPtr<IMedium> pBaseMedium;
1275	HRESULT rc = pMedium->COMGETTER(Base)(pBaseMedium.asOutParam());
1276	if (FAILED(rc)) return rc;
1277	Bstr bstrBaseName;
1278	rc = pBaseMedium->COMGETTER(Name)(bstrBaseName.asOutParam());
1279	if (FAILED(rc)) return rc;
1280	strBaseName = bstrBaseName;
1281	return rc;
1282	}
1283
1284	HRESULT MachineMoveVM::createMachineList(const ComPtr<ISnapshot> &pSnapshot)
1285	{
1286	Bstr name;
1287	HRESULT rc = pSnapshot->COMGETTER(Name)(name.asOutParam());
1288	if (FAILED(rc)) return rc;
1289
1290	ComPtr<IMachine> l_pMachine;
1291	rc = pSnapshot->COMGETTER(Machine)(l_pMachine.asOutParam());
1292	if (FAILED(rc)) return rc;
1293	machineList.push_back((Machine)(IMachine)l_pMachine);
1294
1295	SafeIfaceArray<ISnapshot> sfaChilds;
1296	rc = pSnapshot->COMGETTER(Children)(ComSafeArrayAsOutParam(sfaChilds));
1297	if (FAILED(rc)) return rc;
1298	for (size_t i = 0; i < sfaChilds.size(); ++i)
1299	{
1300	rc = createMachineList(sfaChilds[i]);
1301	if (FAILED(rc)) return rc;
1302	}
1303
1304	return rc;
1305	}
1306
1307	HRESULT MachineMoveVM::queryMediasForAllStates()
1308	{
1309	/* In this case we create a exact copy of the original VM. This means just
1310	* adding all directly and indirectly attached disk images to the worker
1311	* list. */
1312	HRESULT rc = S_OK;
1313	for (size_t i = 0; i < machineList.size(); ++i)
1314	{
1315	const ComObjPtr<Machine> &machine = machineList.at(i);
1316
1317	/* Add all attachments (and their parents) of the different
1318	* machines to a worker list. */
1319	SafeIfaceArray<IMediumAttachment> sfaAttachments;
1320	rc = machine->COMGETTER(MediumAttachments)(ComSafeArrayAsOutParam(sfaAttachments));
1321	if (FAILED(rc)) return rc;
1322	for (size_t a = 0; a < sfaAttachments.size(); ++a)
1323	{
1324	const ComPtr<IMediumAttachment> &pAtt = sfaAttachments[a];
1325	DeviceType_T deviceType;//floppy, hard, DVD
1326	rc = pAtt->COMGETTER(Type)(&deviceType);
1327	if (FAILED(rc)) return rc;
1328
1329	/* Valid medium attached? */
1330	ComPtr<IMedium> pMedium;
1331	rc = pAtt->COMGETTER(Medium)(pMedium.asOutParam());
1332	if (FAILED(rc)) return rc;
1333
1334	if (pMedium.isNull())
1335	continue;
1336
1337	Bstr bstrLocation;
1338	rc = pMedium->COMGETTER(Location)(bstrLocation.asOutParam());
1339	if (FAILED(rc)) return rc;
1340
1341	/* Cast to ComObjPtr<Medium> */
1342	ComObjPtr<Medium> pObjMedium = (Medium )(IMedium )pMedium;
1343
1344	/* Check for "read-only" medium in terms that VBox can't create this one */
1345	rc = isMediumTypeSupportedForMoving(pMedium);
1346	if (FAILED(rc))
1347	{
1348	if (rc == S_FALSE)
1349	{
1350	Log2(("Skipping file %ls because of this medium type hasn't been supported for moving.\n",
1351	bstrLocation.raw()));
1352	continue;
1353	}
1354	else
1355	return rc;
1356	}
1357
1358	MEDIUMTASKCHAINMOVE mtc;
1359	mtc.devType = deviceType;
1360	mtc.fAttachLinked = false;
1361	mtc.fCreateDiffs = false;
1362
1363	while (!pMedium.isNull())
1364	{
1365	/* Refresh the state so that the file size get read. */
1366	MediumState_T e;
1367	rc = pMedium->RefreshState(&e);
1368	if (FAILED(rc)) return rc;
1369
1370	LONG64 lSize;
1371	rc = pMedium->COMGETTER(Size)(&lSize);
1372	if (FAILED(rc)) return rc;
1373
1374	MediumType_T mediumType;//immutable, shared, passthrough
1375	rc = pMedium->COMGETTER(Type)(&mediumType);
1376	if (FAILED(rc)) return rc;
1377
1378	rc = pMedium->COMGETTER(Location)(bstrLocation.asOutParam());
1379	if (FAILED(rc)) return rc;
1380
1381	MEDIUMTASKMOVE mt;// = {false, "basename", NULL, 0, 0};
1382	mt.strBaseName = bstrLocation;
1383	Utf8Str const &strFolder = m_vmFolders[VBox_SnapshotFolder];
1384
1385	if (strFolder.isNotEmpty() && RTPathStartsWith(mt.strBaseName.c_str(), strFolder.c_str()))
1386	mt.fSnapshot = true;
1387	else
1388	mt.fSnapshot = false;
1389
1390	mt.uIdx = UINT32_MAX;
1391	mt.pMedium = pMedium;
1392	mt.uWeight = (ULONG)((lSize + _1M - 1) / _1M);
1393	mtc.chain.append(mt);
1394
1395	/* Query next parent. */
1396	rc = pMedium->COMGETTER(Parent)(pMedium.asOutParam());
1397	if (FAILED(rc)) return rc;
1398	}
1399
1400	m_llMedias.append(mtc);
1401	}
1402
1403	/* Add the save state files of this machine if there is one. */
1404	rc = addSaveState(machine);
1405	if (FAILED(rc)) return rc;
1406	}
1407
1408	/* Build up the index list of the image chain. Unfortunately we can't do
1409	* that in the previous loop, cause there we go from child -> parent and
1410	* didn't know how many are between. */
1411	for (size_t i = 0; i < m_llMedias.size(); ++i)
1412	{
1413	uint32_t uIdx = 0;
1414	MEDIUMTASKCHAINMOVE &mtc = m_llMedias.at(i);
1415	for (size_t a = mtc.chain.size(); a > 0; --a)
1416	mtc.chain[a - 1].uIdx = uIdx++;
1417	}
1418
1419	return rc;
1420	}
1421
1422	HRESULT MachineMoveVM::addSaveState(const ComObjPtr<Machine> &machine)
1423	{
1424	Bstr bstrSrcSaveStatePath;
1425	HRESULT rc = machine->COMGETTER(StateFilePath)(bstrSrcSaveStatePath.asOutParam());
1426	if (FAILED(rc)) return rc;
1427	if (!bstrSrcSaveStatePath.isEmpty())
1428	{
1429	SAVESTATETASKMOVE sst;
1430
1431	sst.snapshotUuid = machine->i_getSnapshotId();
1432	sst.strSaveStateFile = bstrSrcSaveStatePath;
1433	uint64_t cbSize;
1434
1435	int vrc = RTFileQuerySizeByPath(sst.strSaveStateFile.c_str(), &cbSize);
1436	if (RT_FAILURE(vrc))
1437	return m_pMachine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc,
1438	m_pMachine->tr("Could not get file size of '%s': %Rrc"),
1439	sst.strSaveStateFile.c_str(),
1440	vrc);
1441
1442	/* same rule as above: count both the data which needs to
1443	* be read and written */
1444	sst.uWeight = (ULONG)(2 * (cbSize + _1M - 1) / _1M);
1445	m_llSaveStateFiles.append(sst);
1446	}
1447	return S_OK;
1448	}
1449
1450	void MachineMoveVM::updateProgressStats(MEDIUMTASKCHAINMOVE &mtc, ULONG &uCount, ULONG &uTotalWeight) const
1451	{
1452
1453	/* Currently the copying of diff images involves reading at least
1454	* the biggest parent in the previous chain. So even if the new
1455	* diff image is small in size, it could need some time to create
1456	* it. Adding the biggest size in the chain should balance this a
1457	* little bit more, i.e. the weight is the sum of the data which
1458	* needs to be read and written. */
1459	ULONG uMaxWeight = 0;
1460	for (size_t e = mtc.chain.size(); e > 0; --e)
1461	{
1462	MEDIUMTASKMOVE &mt = mtc.chain.at(e - 1);
1463	mt.uWeight += uMaxWeight;
1464
1465	/* Calculate progress data */
1466	++uCount;
1467	uTotalWeight += mt.uWeight;
1468
1469	/* Save the max size for better weighting of diff image
1470	* creation. */
1471	uMaxWeight = RT_MAX(uMaxWeight, mt.uWeight);
1472	}
1473	}
1474
1475	HRESULT MachineMoveVM::isMediumTypeSupportedForMoving(const ComPtr<IMedium> &pMedium)
1476	{
1477	Bstr bstrLocation;
1478	HRESULT rc = pMedium->COMGETTER(Location)(bstrLocation.asOutParam());
1479	if (FAILED(rc))
1480	return rc;
1481
1482	DeviceType_T deviceType;
1483	rc = pMedium->COMGETTER(DeviceType)(&deviceType);
1484	if (FAILED(rc))
1485	return rc;
1486
1487	ComPtr<IMediumFormat> mediumFormat;
1488	rc = pMedium->COMGETTER(MediumFormat)(mediumFormat.asOutParam());
1489	if (FAILED(rc))
1490	return rc;
1491
1492	/* Check whether VBox is able to create this medium format or not, i.e. medium can be "read-only" */
1493	Bstr bstrFormatName;
1494	rc = mediumFormat->COMGETTER(Name)(bstrFormatName.asOutParam());
1495	if (FAILED(rc))
1496	return rc;
1497
1498	Utf8Str formatName = Utf8Str(bstrFormatName);
1499	if (formatName.compare("VHDX", Utf8Str::CaseInsensitive) == 0)
1500	{
1501	Log2(("Skipping medium %ls. VHDX format is supported in \"read-only\" mode only.\n", bstrLocation.raw()));
1502	return S_FALSE;
1503	}
1504
1505	/* Check whether medium is represented by file on the disk or not */
1506	ComObjPtr<Medium> pObjMedium = (Medium )(IMedium )pMedium;
1507	if (!pObjMedium->i_isMediumFormatFile())
1508	{
1509	Log2(("Skipping medium %ls because it's not a real file on the disk.\n", bstrLocation.raw()));
1510	return S_FALSE;
1511	}
1512
1513	/* some special checks for DVD */
1514	if (deviceType == DeviceType_DVD)
1515	{
1516	Utf8Str ext = bstrLocation;
1517	/* only ISO image is moved */
1518	if (!ext.endsWith(".iso", Utf8Str::CaseInsensitive))
1519	{
1520	Log2(("Skipping file %ls. Only ISO images are supported for now.\n", bstrLocation.raw()));
1521	return S_FALSE;
1522	}
1523	}
1524
1525	return S_OK;
1526	}

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source: vbox/trunk/src/VBox/Main/src-server/MachineImplMoveVM.cpp@ 81415

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