/* $Id: MachineImplMoveVM.cpp 98352 2023-01-30 19:44:51Z vboxsync $ */ /** @file * Implementation of MachineMoveVM */ /* * Copyright (C) 2011-2023 Oracle and/or its affiliates. * * This file is part of VirtualBox base platform packages, as * available from https://www.virtualbox.org. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation, in version 3 of the * License. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see . * * SPDX-License-Identifier: GPL-3.0-only */ #define LOG_GROUP LOG_GROUP_MAIN_MACHINE #include #include #include #include #include #include #include #include "MachineImplMoveVM.h" #include "SnapshotImpl.h" #include "MediumFormatImpl.h" #include "VirtualBoxImpl.h" #include "LoggingNew.h" typedef std::multimap list_t; typedef std::multimap::const_iterator cit_t; typedef std::multimap::iterator it_t; typedef std::pair ::iterator, std::multimap::iterator> rangeRes_t; struct fileList_t { HRESULT add(const Utf8Str &folder, const Utf8Str &file) { m_list.insert(std::make_pair(folder, file)); return S_OK; } HRESULT add(const Utf8Str &fullPath) { Utf8Str folder = fullPath; folder.stripFilename(); Utf8Str filename = fullPath; filename.stripPath(); m_list.insert(std::make_pair(folder, filename)); return S_OK; } HRESULT removeFileFromList(const Utf8Str &fullPath) { Utf8Str folder = fullPath; folder.stripFilename(); Utf8Str filename = fullPath; filename.stripPath(); rangeRes_t res = m_list.equal_range(folder); for (it_t it=res.first; it!=res.second;) { if (it->second.equals(filename)) { it_t it2 = it; ++it; m_list.erase(it2); } else ++it; } return S_OK; } HRESULT removeFileFromList(const Utf8Str &path, const Utf8Str &fileName) { rangeRes_t res = m_list.equal_range(path); for (it_t it=res.first; it!=res.second;) { if (it->second.equals(fileName)) { it_t it2 = it; ++it; m_list.erase(it2); } else ++it; } return S_OK; } HRESULT removeFolderFromList(const Utf8Str &path) { m_list.erase(path); return S_OK; } rangeRes_t getFilesInRange(const Utf8Str &path) { rangeRes_t res; res = m_list.equal_range(path); return res; } std::list getFilesInList(const Utf8Str &path) { std::list list_; rangeRes_t res = m_list.equal_range(path); for (it_t it=res.first; it!=res.second; ++it) list_.push_back(it->second); return list_; } list_t m_list; }; HRESULT MachineMoveVM::init() { HRESULT hrc = S_OK; Utf8Str strTargetFolder; /* adding a trailing slash if it's needed */ { size_t len = m_targetPath.length() + 2; if (len >= RTPATH_MAX) return m_pMachine->setError(VBOX_E_IPRT_ERROR, tr("The destination path exceeds the maximum value.")); /** @todo r=bird: I need to add a Utf8Str method or iprt/cxx/path.h thingy * for doing this. We need this often and code like this doesn't * need to be repeated and re-optimized in each instance... */ char *path = new char [len]; RTStrCopy(path, len, m_targetPath.c_str()); RTPathEnsureTrailingSeparator(path, len); strTargetFolder = m_targetPath = path; delete[] path; } /* * We have a mode which user is able to request * basic mode: * - The images which are solely attached to the VM * and located in the original VM folder will be moved. * * Comment: in the future some other modes can be added. */ RTFOFF cbTotal = 0; RTFOFF cbFree = 0; uint32_t cbBlock = 0; uint32_t cbSector = 0; int vrc = RTFsQuerySizes(strTargetFolder.c_str(), &cbTotal, &cbFree, &cbBlock, &cbSector); if (RT_FAILURE(vrc)) return m_pMachine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc, tr("Unable to determine free space at move destination ('%s'): %Rrc"), strTargetFolder.c_str(), vrc); RTDIR hDir; vrc = RTDirOpen(&hDir, strTargetFolder.c_str()); if (RT_FAILURE(vrc)) return m_pMachine->setErrorVrc(vrc); Utf8Str strTempFile = strTargetFolder + "test.txt"; RTFILE hFile; vrc = RTFileOpen(&hFile, strTempFile.c_str(), RTFILE_O_OPEN_CREATE | RTFILE_O_READWRITE | RTFILE_O_DENY_NONE); if (RT_FAILURE(vrc)) { RTDirClose(hDir); return m_pMachine->setErrorVrc(vrc, tr("Can't create a test file test.txt in the %s. Check the access rights of the destination folder."), strTargetFolder.c_str()); } /** @todo r=vvp: Do we need to check each return result here? Looks excessively. * And it's not so important for the test file. * bird: I'd just do AssertRC on the same line, though the deletion * of the test is a little important. */ vrc = RTFileClose(hFile); AssertRC(vrc); RTFileDelete(strTempFile.c_str()); vrc = RTDirClose(hDir); AssertRC(vrc); Log2(("blocks: total %RTfoff, free %RTfoff\n", cbTotal, cbFree)); Log2(("total space (Kb) %RTfoff (Mb) %RTfoff (Gb) %RTfoff\n", cbTotal/_1K, cbTotal/_1M, cbTotal/_1G)); Log2(("total free space (Kb) %RTfoff (Mb) %RTfoff (Gb) %RTfoff\n", cbFree/_1K, cbFree/_1M, cbFree/_1G)); RTFSPROPERTIES properties; vrc = RTFsQueryProperties(strTargetFolder.c_str(), &properties); if (RT_FAILURE(vrc)) return m_pMachine->setErrorVrc(vrc, "RTFsQueryProperties(%s): %Rrc", strTargetFolder.c_str(), vrc); Log2(("disk properties: remote=%RTbool read only=%RTbool compressed=%RTbool\n", properties.fRemote, properties.fReadOnly, properties.fCompressed)); /* Get the original VM path */ Utf8Str strSettingsFilePath; Bstr bstr_settingsFilePath; hrc = m_pMachine->COMGETTER(SettingsFilePath)(bstr_settingsFilePath.asOutParam()); if (FAILED(hrc)) return hrc; strSettingsFilePath = bstr_settingsFilePath; strSettingsFilePath.stripFilename(); m_vmFolders.insert(std::make_pair(VBox_SettingFolder, strSettingsFilePath)); /* Collect all files from the VM's folder */ fileList_t fullFileList; hrc = getFilesList(strSettingsFilePath, fullFileList); if (FAILED(hrc)) return hrc; /* * Collect all known folders used by the VM: * - log folder; * - state folder; * - snapshot folder. */ Utf8Str strLogFolder; Bstr bstr_logFolder; hrc = m_pMachine->COMGETTER(LogFolder)(bstr_logFolder.asOutParam()); if (FAILED(hrc)) return hrc; strLogFolder = bstr_logFolder; if ( m_type.equals("basic") && RTPathStartsWith(strLogFolder.c_str(), strSettingsFilePath.c_str())) m_vmFolders.insert(std::make_pair(VBox_LogFolder, strLogFolder)); Utf8Str strStateFilePath; Bstr bstr_stateFilePath; MachineState_T machineState; hrc = m_pMachine->COMGETTER(State)(&machineState); if (FAILED(hrc)) return hrc; if (machineState == MachineState_Saved || machineState == MachineState_AbortedSaved) { m_pMachine->COMGETTER(StateFilePath)(bstr_stateFilePath.asOutParam()); strStateFilePath = bstr_stateFilePath; strStateFilePath.stripFilename(); if ( m_type.equals("basic") && RTPathStartsWith(strStateFilePath.c_str(), strSettingsFilePath.c_str())) m_vmFolders.insert(std::make_pair(VBox_StateFolder, strStateFilePath)); } Utf8Str strSnapshotFolder; Bstr bstr_snapshotFolder; hrc = m_pMachine->COMGETTER(SnapshotFolder)(bstr_snapshotFolder.asOutParam()); if (FAILED(hrc)) return hrc; strSnapshotFolder = bstr_snapshotFolder; if ( m_type.equals("basic") && RTPathStartsWith(strSnapshotFolder.c_str(), strSettingsFilePath.c_str())) m_vmFolders.insert(std::make_pair(VBox_SnapshotFolder, strSnapshotFolder)); if (m_pMachine->i_isSnapshotMachine()) { Bstr bstrSrcMachineId; hrc = m_pMachine->COMGETTER(Id)(bstrSrcMachineId.asOutParam()); if (FAILED(hrc)) return hrc; ComPtr newSrcMachine; hrc = m_pMachine->i_getVirtualBox()->FindMachine(bstrSrcMachineId.raw(), newSrcMachine.asOutParam()); if (FAILED(hrc)) return hrc; } /* Add the current machine and all snapshot machines below this machine * in a list for further processing. */ int64_t neededFreeSpace = 0; /* Actual file list */ fileList_t actualFileList; Utf8Str strTargetImageName; machineList.push_back(m_pMachine); { ULONG cSnapshots = 0; hrc = m_pMachine->COMGETTER(SnapshotCount)(&cSnapshots); if (FAILED(hrc)) return hrc; if (cSnapshots > 0) { Utf8Str id; if (m_pMachine->i_isSnapshotMachine()) id = m_pMachine->i_getSnapshotId().toString(); ComPtr pSnapshot; hrc = m_pMachine->FindSnapshot(Bstr(id).raw(), pSnapshot.asOutParam()); if (FAILED(hrc)) return hrc; hrc = createMachineList(pSnapshot); if (FAILED(hrc)) return hrc; } } ULONG uCount = 1;//looks like it should be initialized by 1. See assertion in the Progress::setNextOperation() ULONG uTotalWeight = 1; /* The lists m_llMedia, m_llSaveStateFiles and m_llNVRAMFiles are filled in the queryMediaForAllStates() */ hrc = queryMediaForAllStates(); if (FAILED(hrc)) return hrc; /* Calculate the total size of images. Fill m_finalMediaMap */ { /** The scope here for better reading, apart from that the variables have limited scope too */ uint64_t totalMediaSize = 0; for (size_t i = 0; i < m_llMedia.size(); ++i) { MEDIUMTASKCHAINMOVE &mtc = m_llMedia.at(i); for (size_t a = mtc.chain.size(); a > 0; --a) { Bstr bstrLocation; Utf8Str name = mtc.chain[a - 1].strBaseName; ComPtr plMedium = mtc.chain[a - 1].pMedium; hrc = plMedium->COMGETTER(Location)(bstrLocation.asOutParam()); if (FAILED(hrc)) return hrc; Utf8Str strLocation = bstrLocation; /* if an image is located in the actual VM folder it will be added to the actual list */ if (strLocation.startsWith(strSettingsFilePath)) { LONG64 cbSize = 0; hrc = plMedium->COMGETTER(Size)(&cbSize); if (FAILED(hrc)) return hrc; std::pair::iterator,bool> ret; ret = m_finalMediaMap.insert(std::make_pair(name, mtc.chain[a - 1])); if (ret.second == true) { /* Calculate progress data */ ++uCount; uTotalWeight += mtc.chain[a - 1].uWeight; totalMediaSize += (uint64_t)cbSize; Log2(("Image %s was added into the moved list\n", name.c_str())); } } } } Log2(("Total Size of images is %lld bytes\n", totalMediaSize)); neededFreeSpace += totalMediaSize; } /* Prepare data for moving ".sav" files */ { uint64_t totalStateSize = 0; for (size_t i = 0; i < m_llSaveStateFiles.size(); ++i) { uint64_t cbFile = 0; SNAPFILETASKMOVE &sft = m_llSaveStateFiles.at(i); Utf8Str name = sft.strFile; /* if a state file is located in the actual VM folder it will be added to the actual list */ if (RTPathStartsWith(name.c_str(), strSettingsFilePath.c_str())) { vrc = RTFileQuerySizeByPath(name.c_str(), &cbFile); if (RT_SUCCESS(vrc)) { std::pair::iterator,bool> ret; ret = m_finalSaveStateFilesMap.insert(std::make_pair(name, sft)); if (ret.second == true) { totalStateSize += cbFile; ++uCount; uTotalWeight += sft.uWeight; Log2(("The state file %s was added into the moved list\n", name.c_str())); } } else { Log2(("The state file %s wasn't added into the moved list. Couldn't get the file size.\n", name.c_str())); return m_pMachine->setErrorVrc(vrc, tr("Failed to get file size for '%s': %Rrc"), name.c_str(), vrc); } } } neededFreeSpace += totalStateSize; } /* Prepare data for moving ".nvram" files */ { uint64_t totalNVRAMSize = 0; for (size_t i = 0; i < m_llNVRAMFiles.size(); ++i) { uint64_t cbFile = 0; SNAPFILETASKMOVE &sft = m_llNVRAMFiles.at(i); Utf8Str name = sft.strFile; /* if a NVRAM file is located in the actual VM folder it will be added to the actual list */ if (RTPathStartsWith(name.c_str(), strSettingsFilePath.c_str())) { vrc = RTFileQuerySizeByPath(name.c_str(), &cbFile); if (RT_SUCCESS(vrc)) { std::pair::iterator,bool> ret; ret = m_finalNVRAMFilesMap.insert(std::make_pair(name, sft)); if (ret.second == true) { totalNVRAMSize += cbFile; ++uCount; uTotalWeight += sft.uWeight; Log2(("The NVRAM file %s was added into the moved list\n", name.c_str())); } } else { Log2(("The NVRAM file %s wasn't added into the moved list. Couldn't get the file size.\n", name.c_str())); return m_pMachine->setErrorVrc(vrc, tr("Failed to get file size for '%s': %Rrc"), name.c_str(), vrc); } } } neededFreeSpace += totalNVRAMSize; } /* Prepare data for moving the log files */ { Utf8Str strFolder = m_vmFolders[VBox_LogFolder]; if (RTPathExists(strFolder.c_str())) { uint64_t totalLogSize = 0; hrc = getFolderSize(strFolder, totalLogSize); if (SUCCEEDED(hrc)) { neededFreeSpace += totalLogSize; if (cbFree - neededFreeSpace <= _1M) return m_pMachine->setError(E_FAIL, tr("Insufficient disk space available (%RTfoff needed, %RTfoff free)"), neededFreeSpace, cbFree); fileList_t filesList; hrc = getFilesList(strFolder, filesList); if (FAILED(hrc)) return hrc; cit_t it = filesList.m_list.begin(); while (it != filesList.m_list.end()) { Utf8Str strFile = it->first.c_str(); strFile.append(RTPATH_DELIMITER).append(it->second.c_str()); uint64_t cbFile = 0; vrc = RTFileQuerySizeByPath(strFile.c_str(), &cbFile); if (RT_SUCCESS(vrc)) { uCount += 1; uTotalWeight += (ULONG)((cbFile + _1M - 1) / _1M); actualFileList.add(strFile); Log2(("The log file %s added into the moved list\n", strFile.c_str())); } else Log2(("The log file %s wasn't added into the moved list. Couldn't get the file size.\n", strFile.c_str())); ++it; } } else return hrc; } else { Log2(("Information: The original log folder %s doesn't exist\n", strFolder.c_str())); hrc = S_OK;//it's not error in this case if there isn't an original log folder } } LogRel(("Total space needed is %lld bytes\n", neededFreeSpace)); /* Check a target location on enough room */ if (cbFree - neededFreeSpace <= _1M) { LogRel(("but free space on destination is %RTfoff\n", cbFree)); return m_pMachine->setError(VBOX_E_IPRT_ERROR, tr("Insufficient disk space available (%RTfoff needed, %RTfoff free)"), neededFreeSpace, cbFree); } /* Add step for .vbox machine setting file */ ++uCount; uTotalWeight += 1; /* Reserve additional steps in case of failure and rollback all changes */ uTotalWeight += uCount;//just add 1 for each possible rollback operation uCount += uCount;//and increase the steps twice /* Init Progress instance */ { hrc = m_pProgress->init(m_pMachine->i_getVirtualBox(), static_cast(m_pMachine) /* aInitiator */, Utf8Str(tr("Moving Machine")), true /* fCancellable */, uCount, uTotalWeight, Utf8Str(tr("Initialize Moving")), 1); if (FAILED(hrc)) return m_pMachine->setError(hrc, tr("Couldn't correctly setup the progress object for moving VM operation")); } /* save all VM data */ m_pMachine->i_setModified(Machine::IsModified_MachineData); hrc = m_pMachine->SaveSettings(); if (FAILED(hrc)) return hrc; LogFlowFuncLeave(); return hrc; } void MachineMoveVM::printStateFile(settings::SnapshotsList &snl) { settings::SnapshotsList::iterator it; for (it = snl.begin(); it != snl.end(); ++it) { if (!it->strStateFile.isEmpty()) { settings::Snapshot snap = (settings::Snapshot)(*it); Log2(("snap.uuid = %s\n", snap.uuid.toStringCurly().c_str())); Log2(("snap.strStateFile = %s\n", snap.strStateFile.c_str())); } if (!it->llChildSnapshots.empty()) printStateFile(it->llChildSnapshots); } } /* static */ DECLCALLBACK(int) MachineMoveVM::updateProgress(unsigned uPercent, void *pvUser) { MachineMoveVM *pTask = *(MachineMoveVM **)pvUser; if ( pTask && !pTask->m_pProgress.isNull()) { BOOL fCanceled; pTask->m_pProgress->COMGETTER(Canceled)(&fCanceled); if (fCanceled) return -1; pTask->m_pProgress->SetCurrentOperationProgress(uPercent); } return VINF_SUCCESS; } /* static */ DECLCALLBACK(int) MachineMoveVM::copyFileProgress(unsigned uPercentage, void *pvUser) { ComObjPtr pProgress = *static_cast *>(pvUser); BOOL fCanceled = false; HRESULT hrc = pProgress->COMGETTER(Canceled)(&fCanceled); if (FAILED(hrc)) return VERR_GENERAL_FAILURE; /* If canceled by the user tell it to the copy operation. */ if (fCanceled) return VERR_CANCELLED; /* Set the new process. */ hrc = pProgress->SetCurrentOperationProgress(uPercentage); if (FAILED(hrc)) return VERR_GENERAL_FAILURE; return VINF_SUCCESS; } /* static */ void MachineMoveVM::i_MoveVMThreadTask(MachineMoveVM *task) { LogFlowFuncEnter(); HRESULT hrc = S_OK; MachineMoveVM *taskMoveVM = task; ComObjPtr &machine = taskMoveVM->m_pMachine; AutoCaller autoCaller(machine); // if (FAILED(autoCaller.hrc())) return;//Should we return something here? Utf8Str strTargetFolder = taskMoveVM->m_targetPath; { Bstr bstrMachineName; hrc = machine->COMGETTER(Name)(bstrMachineName.asOutParam()); if (FAILED(hrc)) { taskMoveVM->m_result = hrc; if (!taskMoveVM->m_pProgress.isNull()) taskMoveVM->m_pProgress->i_notifyComplete(taskMoveVM->m_result); return; } strTargetFolder.append(Utf8Str(bstrMachineName)); } RTCList newFiles; /* All extra created files (save states, ...) */ RTCList originalFiles; /* All original files except images */ typedef std::map > MediumMap; MediumMap mapOriginalMedium; /* * We have the couple modes which user is able to request * basic mode: * - The images which are solely attached to the VM * and located in the original VM folder will be moved. * All subfolders related to the original VM are also moved from the original location * (Standard - snapshots and logs folders). * * canonical mode: * - All disks tied with the VM will be moved into a new location if it's possible. * All folders related to the original VM are also moved. * This mode is intended to collect all files/images/snapshots related to the VM in the one place. * */ /* * A way to handle shareable disk: * Collect the shareable disks attched to the VM. * Get the machines whom the shareable disks attach to. * Return an error if the state of any VM doesn't allow to move a shareable disk and * this disk is located in the VM's folder (it means the disk is intended for "moving"). */ /* * Check new destination whether enough room for the VM or not. if "not" return an error. * Make a copy of VM settings and a list with all files which are moved. Save the list on the disk. * Start "move" operation. * Check the result of operation. * if the operation was successful: * - delete all files in the original VM folder; * - update VM disks info with new location; * - update all other VM if it's needed; * - update global settings */ try { /* Move all disks */ hrc = taskMoveVM->moveAllDisks(taskMoveVM->m_finalMediaMap, strTargetFolder); if (FAILED(hrc)) throw hrc; /* Get Machine::Data here because moveAllDisks() change it */ Machine::Data *machineData = machine->mData.data(); settings::MachineConfigFile *machineConfFile = machineData->pMachineConfigFile; /* Copy all save state files. */ Utf8Str strTrgSnapshotFolder; { /* When the current snapshot folder is absolute we reset it to the * default relative folder. */ if (RTPathStartsWithRoot(machineConfFile->machineUserData.strSnapshotFolder.c_str())) machineConfFile->machineUserData.strSnapshotFolder = "Snapshots"; machineConfFile->strStateFile = ""; /* The absolute name of the snapshot folder. */ strTrgSnapshotFolder = Utf8StrFmt("%s%c%s", strTargetFolder.c_str(), RTPATH_DELIMITER, machineConfFile->machineUserData.strSnapshotFolder.c_str()); /* Check if a snapshot folder is necessary and if so doesn't already * exists. */ if ( ( taskMoveVM->m_finalSaveStateFilesMap.size() > 0 || taskMoveVM->m_finalNVRAMFilesMap.size() > 1) && !RTDirExists(strTrgSnapshotFolder.c_str())) { int vrc = RTDirCreateFullPath(strTrgSnapshotFolder.c_str(), 0700); if (RT_FAILURE(vrc)) throw machine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc, tr("Could not create snapshots folder '%s' (%Rrc)"), strTrgSnapshotFolder.c_str(), vrc); } std::map::iterator itState = taskMoveVM->m_finalSaveStateFilesMap.begin(); while (itState != taskMoveVM->m_finalSaveStateFilesMap.end()) { const SNAPFILETASKMOVE &sft = itState->second; const Utf8Str &strTrgSaveState = Utf8StrFmt("%s%c%s", strTrgSnapshotFolder.c_str(), RTPATH_DELIMITER, RTPathFilename(sft.strFile.c_str())); /* Move to next sub-operation. */ hrc = taskMoveVM->m_pProgress->SetNextOperation(BstrFmt(tr("Copy the save state file '%s' ..."), RTPathFilename(sft.strFile.c_str())).raw(), sft.uWeight); if (FAILED(hrc)) throw hrc; int vrc = RTFileCopyEx(sft.strFile.c_str(), strTrgSaveState.c_str(), 0, MachineMoveVM::copyFileProgress, &taskMoveVM->m_pProgress); if (RT_FAILURE(vrc)) throw machine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc, tr("Could not copy state file '%s' to '%s' (%Rrc)"), sft.strFile.c_str(), strTrgSaveState.c_str(), vrc); /* save new file in case of restoring */ newFiles.append(strTrgSaveState); /* save original file for deletion in the end */ originalFiles.append(sft.strFile); ++itState; } std::map::iterator itNVRAM = taskMoveVM->m_finalNVRAMFilesMap.begin(); while (itNVRAM != taskMoveVM->m_finalNVRAMFilesMap.end()) { const SNAPFILETASKMOVE &sft = itNVRAM->second; const Utf8Str &strTrgNVRAM = Utf8StrFmt("%s%c%s", sft.snapshotUuid.isZero() ? strTargetFolder.c_str() : strTrgSnapshotFolder.c_str(), RTPATH_DELIMITER, RTPathFilename(sft.strFile.c_str())); /* Move to next sub-operation. */ hrc = taskMoveVM->m_pProgress->SetNextOperation(BstrFmt(tr("Copy the NVRAM file '%s' ..."), RTPathFilename(sft.strFile.c_str())).raw(), sft.uWeight); if (FAILED(hrc)) throw hrc; int vrc = RTFileCopyEx(sft.strFile.c_str(), strTrgNVRAM.c_str(), 0, MachineMoveVM::copyFileProgress, &taskMoveVM->m_pProgress); if (RT_FAILURE(vrc)) throw machine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc, tr("Could not copy NVRAM file '%s' to '%s' (%Rrc)"), sft.strFile.c_str(), strTrgNVRAM.c_str(), vrc); /* save new file in case of restoring */ newFiles.append(strTrgNVRAM); /* save original file for deletion in the end */ originalFiles.append(sft.strFile); ++itNVRAM; } } /* * Update state file path * very important step! */ Log2(("Update state file path\n")); /** @todo r=klaus: this update is not necessarily matching what the * above code has set as the new folders, so it needs reimplementing */ taskMoveVM->updatePathsToStateFiles(taskMoveVM->m_vmFolders[VBox_SettingFolder], strTargetFolder); /* * Update NVRAM file paths * very important step! */ Log2(("Update NVRAM paths\n")); /** @todo r=klaus: this update is not necessarily matching what the * above code has set as the new folders, so it needs reimplementing. * What's good about this implementation: it does not look at the * list of NVRAM files, because that only lists the existing ones, * but all paths need fixing. */ taskMoveVM->updatePathsToNVRAMFiles(taskMoveVM->m_vmFolders[VBox_SettingFolder], strTargetFolder); /* * Moving Machine settings file * The settings file are moved after all disks and snapshots because this file should be updated * with actual information and only then should be moved. */ { Log2(("Copy Machine settings file\n")); hrc = taskMoveVM->m_pProgress->SetNextOperation(BstrFmt(tr("Copy Machine settings file '%s' ..."), machineConfFile->machineUserData.strName.c_str()).raw(), 1); if (FAILED(hrc)) throw hrc; Utf8Str strTargetSettingsFilePath = strTargetFolder; /* Check a folder existing and create one if it's not */ if (!RTDirExists(strTargetSettingsFilePath.c_str())) { int vrc = RTDirCreateFullPath(strTargetSettingsFilePath.c_str(), 0700); if (RT_FAILURE(vrc)) throw machine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc, tr("Could not create a home machine folder '%s' (%Rrc)"), strTargetSettingsFilePath.c_str(), vrc); Log2(("Created a home machine folder %s\n", strTargetSettingsFilePath.c_str())); } /* Create a full path */ Bstr bstrMachineName; machine->COMGETTER(Name)(bstrMachineName.asOutParam()); if (FAILED(hrc)) throw hrc; strTargetSettingsFilePath.append(RTPATH_DELIMITER).append(Utf8Str(bstrMachineName)); strTargetSettingsFilePath.append(".vbox"); Utf8Str strSettingsFilePath; Bstr bstr_settingsFilePath; machine->COMGETTER(SettingsFilePath)(bstr_settingsFilePath.asOutParam()); if (FAILED(hrc)) throw hrc; strSettingsFilePath = bstr_settingsFilePath; int vrc = RTFileCopyEx(strSettingsFilePath.c_str(), strTargetSettingsFilePath.c_str(), 0, MachineMoveVM::copyFileProgress, &taskMoveVM->m_pProgress); if (RT_FAILURE(vrc)) throw machine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc, tr("Could not copy the setting file '%s' to '%s' (%Rrc)"), strSettingsFilePath.c_str(), strTargetSettingsFilePath.stripFilename().c_str(), vrc); Log2(("The setting file %s has been copied into the folder %s\n", strSettingsFilePath.c_str(), strTargetSettingsFilePath.stripFilename().c_str())); /* save new file in case of restoring */ newFiles.append(strTargetSettingsFilePath); /* save original file for deletion in the end */ originalFiles.append(strSettingsFilePath); Utf8Str strPrevSettingsFilePath = strSettingsFilePath; strPrevSettingsFilePath.append("-prev"); if (RTFileExists(strPrevSettingsFilePath.c_str())) originalFiles.append(strPrevSettingsFilePath); } /* Moving Machine log files */ { Log2(("Copy machine log files\n")); if (taskMoveVM->m_vmFolders[VBox_LogFolder].isNotEmpty()) { /* Check an original log folder existence */ if (RTDirExists(taskMoveVM->m_vmFolders[VBox_LogFolder].c_str())) { Utf8Str strTargetLogFolderPath = strTargetFolder; strTargetLogFolderPath.append(RTPATH_DELIMITER).append("Logs"); /* Check a destination log folder existence and create one if it's not */ if (!RTDirExists(strTargetLogFolderPath.c_str())) { int vrc = RTDirCreateFullPath(strTargetLogFolderPath.c_str(), 0700); if (RT_FAILURE(vrc)) throw machine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc, tr("Could not create log folder '%s' (%Rrc)"), strTargetLogFolderPath.c_str(), vrc); Log2(("Created a log machine folder %s\n", strTargetLogFolderPath.c_str())); } fileList_t filesList; taskMoveVM->getFilesList(taskMoveVM->m_vmFolders[VBox_LogFolder], filesList); cit_t it = filesList.m_list.begin(); while (it != filesList.m_list.end()) { Utf8Str strFullSourceFilePath = it->first.c_str(); strFullSourceFilePath.append(RTPATH_DELIMITER).append(it->second.c_str()); Utf8Str strFullTargetFilePath = strTargetLogFolderPath; strFullTargetFilePath.append(RTPATH_DELIMITER).append(it->second.c_str()); /* Move to next sub-operation. */ hrc = taskMoveVM->m_pProgress->SetNextOperation(BstrFmt(tr("Copying the log file '%s' ..."), RTPathFilename(strFullSourceFilePath.c_str())).raw(), 1); if (FAILED(hrc)) throw hrc; int vrc = RTFileCopyEx(strFullSourceFilePath.c_str(), strFullTargetFilePath.c_str(), 0, MachineMoveVM::copyFileProgress, &taskMoveVM->m_pProgress); if (RT_FAILURE(vrc)) throw machine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc, tr("Could not copy the log file '%s' to '%s' (%Rrc)"), strFullSourceFilePath.c_str(), strFullTargetFilePath.stripFilename().c_str(), vrc); Log2(("The log file %s has been copied into the folder %s\n", strFullSourceFilePath.c_str(), strFullTargetFilePath.stripFilename().c_str())); /* save new file in case of restoring */ newFiles.append(strFullTargetFilePath); /* save original file for deletion in the end */ originalFiles.append(strFullSourceFilePath); ++it; } } } } /* save all VM data */ hrc = machine->SaveSettings(); if (FAILED(hrc)) throw hrc; Log2(("Update path to XML setting file\n")); Utf8Str strTargetSettingsFilePath = strTargetFolder; Bstr bstrMachineName; hrc = machine->COMGETTER(Name)(bstrMachineName.asOutParam()); if (FAILED(hrc)) throw hrc; strTargetSettingsFilePath.append(RTPATH_DELIMITER).append(Utf8Str(bstrMachineName)).append(".vbox"); machineData->m_strConfigFileFull = strTargetSettingsFilePath; machine->mParent->i_copyPathRelativeToConfig(strTargetSettingsFilePath, machineData->m_strConfigFile); /* Marks the global registry for uuid as modified */ Guid uuid = machine->mData->mUuid; machine->mParent->i_markRegistryModified(uuid); /* for saving the global settings we should hold only the VirtualBox lock */ AutoWriteLock vboxLock(machine->mParent COMMA_LOCKVAL_SRC_POS); /* Save global settings in the VirtualBox.xml */ hrc = machine->mParent->i_saveSettings(); if (FAILED(hrc)) throw hrc; } catch(HRESULT aRc) { hrc = aRc; taskMoveVM->m_result = hrc; } catch (...) { Log2(("Moving machine to a new destination was failed. Check original and destination places.\n")); hrc = VirtualBoxBase::handleUnexpectedExceptions(machine, RT_SRC_POS); taskMoveVM->m_result = hrc; } /* Cleanup on failure */ if (FAILED(hrc)) { Machine::Data *machineData = machine->mData.data(); /* Restoring the original media */ try { /* * Fix the progress counter * In instance, the whole "move vm" operation is failed on 5th step. But total count is 20. * Where 20 = 2 * 10 operations, where 10 is the real number of operations. And this value was doubled * earlier in the init() exactly for one reason - rollback operation. Because in this case we must do * the same operations but in backward direction. * Thus now we want to correct the progress counter from 5 to 15. Why? * Because we should have evaluated the counter as "20/2 + (20/2 - 5)" = 15 or just "20 - 5" = 15 * And because the 5th step failed it shouldn't be counted. * As result, we need to rollback 4 operations. * Thus we start from "operation + 1" and finish when "i < operationCount - operation". */ /** @todo r=vvp: Do we need to check each return result here? Looks excessively * and what to do with any failure here? We are already in the rollback action. * Throw only the important errors? * We MUST finish this action anyway to avoid garbage and get the original VM state. */ /* ! Apparently we should update the Progress object !*/ ULONG operationCount = 0; hrc = taskMoveVM->m_pProgress->COMGETTER(OperationCount)(&operationCount); if (FAILED(hrc)) throw hrc; ULONG operation = 0; hrc = taskMoveVM->m_pProgress->COMGETTER(Operation)(&operation); if (FAILED(hrc)) throw hrc; Bstr bstrOperationDescription; hrc = taskMoveVM->m_pProgress->COMGETTER(OperationDescription)(bstrOperationDescription.asOutParam()); if (FAILED(hrc)) throw hrc; Utf8Str strOperationDescription = bstrOperationDescription; ULONG operationPercent = 0; hrc = taskMoveVM->m_pProgress->COMGETTER(OperationPercent)(&operationPercent); if (FAILED(hrc)) throw hrc; Bstr bstrMachineName; hrc = machine->COMGETTER(Name)(bstrMachineName.asOutParam()); if (FAILED(hrc)) throw hrc; Log2(("Moving machine %s was failed on operation %s\n", Utf8Str(bstrMachineName.raw()).c_str(), Utf8Str(bstrOperationDescription.raw()).c_str())); for (ULONG i = operation + 1; i < operationCount - operation; ++i) taskMoveVM->m_pProgress->SetNextOperation(BstrFmt(tr("Skip the empty operation %d..."), i + 1).raw(), 1); hrc = taskMoveVM->moveAllDisks(taskMoveVM->m_finalMediaMap); if (FAILED(hrc)) throw hrc; /* Revert original paths to the state files */ taskMoveVM->updatePathsToStateFiles(strTargetFolder, taskMoveVM->m_vmFolders[VBox_SettingFolder]); /* Revert original paths to the NVRAM files */ taskMoveVM->updatePathsToNVRAMFiles(strTargetFolder, taskMoveVM->m_vmFolders[VBox_SettingFolder]); /* Delete all created files. Here we update progress object */ hrc = taskMoveVM->deleteFiles(newFiles); if (FAILED(hrc)) { Log2(("Rollback scenario: can't delete new created files. Check the destination folder.\n")); throw hrc; } /* Delete destination folder */ int vrc = RTDirRemove(strTargetFolder.c_str()); if (RT_FAILURE(vrc)) { Log2(("Rollback scenario: can't delete new destination folder.\n")); throw machine->setErrorVrc(vrc, tr("Rollback scenario: can't delete new destination folder.")); } /* save all VM data */ { AutoWriteLock srcLock(machine COMMA_LOCKVAL_SRC_POS); srcLock.release(); hrc = machine->SaveSettings(); if (FAILED(hrc)) { Log2(("Rollback scenario: can't save machine settings.\n")); throw hrc; } srcLock.acquire(); } /* Restore an original path to XML setting file */ { Log2(("Rollback scenario: restoration of the original path to XML setting file\n")); Utf8Str strOriginalSettingsFilePath = taskMoveVM->m_vmFolders[VBox_SettingFolder]; strOriginalSettingsFilePath.append(RTPATH_DELIMITER).append(Utf8Str(bstrMachineName)).append(".vbox"); machineData->m_strConfigFileFull = strOriginalSettingsFilePath; machine->mParent->i_copyPathRelativeToConfig(strOriginalSettingsFilePath, machineData->m_strConfigFile); } /* Marks the global registry for uuid as modified */ { AutoWriteLock srcLock(machine COMMA_LOCKVAL_SRC_POS); srcLock.release(); Guid uuid = machine->mData->mUuid; machine->mParent->i_markRegistryModified(uuid); srcLock.acquire(); } /* save the global settings; for that we should hold only the VirtualBox lock */ { AutoWriteLock vboxLock(machine->mParent COMMA_LOCKVAL_SRC_POS); hrc = machine->mParent->i_saveSettings(); if (FAILED(hrc)) { Log2(("Rollback scenario: can't save global settings.\n")); throw hrc; } } } catch(HRESULT aRc) { hrc = aRc; Log2(("Rollback scenario: restoration the original media failed. Machine can be corrupted.\n")); } catch (...) { Log2(("Rollback scenario: restoration the original media failed. Machine can be corrupted.\n")); hrc = VirtualBoxBase::handleUnexpectedExceptions(machine, RT_SRC_POS); } /* In case of failure the progress object on the other side (user side) get notification about operation completion but the operation percentage may not be set to 100% */ } else /*Operation was successful and now we can delete the original files like the state files, XML setting, log files */ { /* * In case of success it's not urgent to update the progress object because we call i_notifyComplete() with * the success result. As result, the last number of progress operation can be not equal the number of operations * because we doubled the number of operations for rollback case. * But if we want to update the progress object corectly it's needed to add all medium moved by standard * "move medium" logic (for us it's taskMoveVM->m_finalMediaMap) to the current number of operation. */ ULONG operationCount = 0; hrc = taskMoveVM->m_pProgress->COMGETTER(OperationCount)(&operationCount); ULONG operation = 0; hrc = taskMoveVM->m_pProgress->COMGETTER(Operation)(&operation); for (ULONG i = operation; i < operation + taskMoveVM->m_finalMediaMap.size() - 1; ++i) taskMoveVM->m_pProgress->SetNextOperation(BstrFmt(tr("Skip the empty operation %d..."), i).raw(), 1); hrc = taskMoveVM->deleteFiles(originalFiles); if (FAILED(hrc)) Log2(("Forward scenario: can't delete all original files.\n")); /* delete no longer needed source directories */ if ( taskMoveVM->m_vmFolders[VBox_SnapshotFolder].isNotEmpty() && RTDirExists(taskMoveVM->m_vmFolders[VBox_SnapshotFolder].c_str())) RTDirRemove(taskMoveVM->m_vmFolders[VBox_SnapshotFolder].c_str()); if ( taskMoveVM->m_vmFolders[VBox_LogFolder].isNotEmpty() && RTDirExists(taskMoveVM->m_vmFolders[VBox_LogFolder].c_str())) RTDirRemove(taskMoveVM->m_vmFolders[VBox_LogFolder].c_str()); if ( taskMoveVM->m_vmFolders[VBox_SettingFolder].isNotEmpty() && RTDirExists(taskMoveVM->m_vmFolders[VBox_SettingFolder].c_str())) RTDirRemove(taskMoveVM->m_vmFolders[VBox_SettingFolder].c_str()); } if (!taskMoveVM->m_pProgress.isNull()) taskMoveVM->m_pProgress->i_notifyComplete(taskMoveVM->m_result); LogFlowFuncLeave(); } HRESULT MachineMoveVM::moveAllDisks(const std::map &listOfDisks, const Utf8Str &strTargetFolder) { HRESULT hrc = S_OK; ComObjPtr &machine = m_pMachine; Utf8Str strLocation; AutoWriteLock machineLock(machine COMMA_LOCKVAL_SRC_POS); try { std::map::const_iterator itMedium = listOfDisks.begin(); while (itMedium != listOfDisks.end()) { const MEDIUMTASKMOVE &mt = itMedium->second; ComPtr pMedium = mt.pMedium; Utf8Str strTargetImageName; Bstr bstrLocation; Bstr bstrSrcName; hrc = pMedium->COMGETTER(Name)(bstrSrcName.asOutParam()); if (FAILED(hrc)) throw hrc; if (strTargetFolder.isNotEmpty()) { strTargetImageName = strTargetFolder; hrc = pMedium->COMGETTER(Location)(bstrLocation.asOutParam()); if (FAILED(hrc)) throw hrc; strLocation = bstrLocation; if (mt.fSnapshot == true) strLocation.stripFilename().stripPath().append(RTPATH_DELIMITER).append(Utf8Str(bstrSrcName)); else strLocation.stripPath(); strTargetImageName.append(RTPATH_DELIMITER).append(strLocation); hrc = m_pProgress->SetNextOperation(BstrFmt(tr("Moving medium '%ls' ..."), bstrSrcName.raw()).raw(), mt.uWeight); if (FAILED(hrc)) throw hrc; } else { strTargetImageName = mt.strBaseName;//Should contain full path to the image hrc = m_pProgress->SetNextOperation(BstrFmt(tr("Moving medium '%ls' back..."), bstrSrcName.raw()).raw(), mt.uWeight); if (FAILED(hrc)) throw hrc; } /* consistency: use \ if appropriate on the platform */ RTPathChangeToDosSlashes(strTargetImageName.mutableRaw(), false); bstrLocation = strTargetImageName.c_str(); MediumType_T mediumType;//immutable, shared, passthrough hrc = pMedium->COMGETTER(Type)(&mediumType); if (FAILED(hrc)) throw hrc; DeviceType_T deviceType;//floppy, hard, DVD hrc = pMedium->COMGETTER(DeviceType)(&deviceType); if (FAILED(hrc)) throw hrc; /* Drop lock early because IMedium::MoveTo needs to get the VirtualBox one. */ machineLock.release(); ComPtr moveDiskProgress; hrc = pMedium->MoveTo(bstrLocation.raw(), moveDiskProgress.asOutParam()); if (SUCCEEDED(hrc)) { /* In case of failure moveDiskProgress would be in the invalid state or not initialized at all * Call i_waitForOtherProgressCompletion only in success */ /* Wait until the other process has finished. */ hrc = m_pProgress->WaitForOtherProgressCompletion(moveDiskProgress, 0 /* indefinite wait */); } /*acquire the lock back*/ machineLock.acquire(); if (FAILED(hrc)) throw hrc; Log2(("Moving %s has been finished\n", strTargetImageName.c_str())); ++itMedium; } machineLock.release(); } catch (HRESULT hrcXcpt) { Log2(("Exception during moving the disk %s: %Rhrc\n", strLocation.c_str(), hrcXcpt)); hrc = hrcXcpt; machineLock.release(); } catch (...) { Log2(("Exception during moving the disk %s\n", strLocation.c_str())); hrc = VirtualBoxBase::handleUnexpectedExceptions(m_pMachine, RT_SRC_POS); machineLock.release(); } return hrc; } void MachineMoveVM::updatePathsToStateFiles(const Utf8Str &sourcePath, const Utf8Str &targetPath) { ComObjPtr pSnapshot; HRESULT hrc = m_pMachine->i_findSnapshotById(Guid() /* zero */, pSnapshot, true); if (SUCCEEDED(hrc) && !pSnapshot.isNull()) pSnapshot->i_updateSavedStatePaths(sourcePath.c_str(), targetPath.c_str()); if (m_pMachine->mSSData->strStateFilePath.isNotEmpty()) { if (RTPathStartsWith(m_pMachine->mSSData->strStateFilePath.c_str(), sourcePath.c_str())) m_pMachine->mSSData->strStateFilePath = Utf8StrFmt("%s%s", targetPath.c_str(), m_pMachine->mSSData->strStateFilePath.c_str() + sourcePath.length()); else m_pMachine->mSSData->strStateFilePath = Utf8StrFmt("%s%c%s", targetPath.c_str(), RTPATH_DELIMITER, RTPathFilename(m_pMachine->mSSData->strStateFilePath.c_str())); } } void MachineMoveVM::updatePathsToNVRAMFiles(const Utf8Str &sourcePath, const Utf8Str &targetPath) { ComObjPtr pSnapshot; HRESULT hrc = m_pMachine->i_findSnapshotById(Guid() /* zero */, pSnapshot, true); if (SUCCEEDED(hrc) && !pSnapshot.isNull()) pSnapshot->i_updateNVRAMPaths(sourcePath.c_str(), targetPath.c_str()); ComObjPtr pNvramStore(m_pMachine->mNvramStore); const Utf8Str NVRAMFile(pNvramStore->i_getNonVolatileStorageFile()); if (NVRAMFile.isNotEmpty()) { Utf8Str newNVRAMFile; if (RTPathStartsWith(NVRAMFile.c_str(), sourcePath.c_str())) newNVRAMFile = Utf8StrFmt("%s%s", targetPath.c_str(), NVRAMFile.c_str() + sourcePath.length()); else newNVRAMFile = Utf8StrFmt("%s%c%s", targetPath.c_str(), RTPATH_DELIMITER, RTPathFilename(newNVRAMFile.c_str())); pNvramStore->i_updateNonVolatileStorageFile(newNVRAMFile); } } HRESULT MachineMoveVM::getFilesList(const Utf8Str &strRootFolder, fileList_t &filesList) { RTDIR hDir; HRESULT hrc = S_OK; int vrc = RTDirOpen(&hDir, strRootFolder.c_str()); if (RT_SUCCESS(vrc)) { /** @todo r=bird: RTDIRENTRY is big and this function is doing * unrestrained recursion of arbritrary depth. Four things: * - Add a depth counter parameter and refuse to go deeper than * a certain reasonable limit. * - Split this method into a main and a worker, placing * RTDIRENTRY on the stack in the main and passing it onto to * worker as a parameter. * - RTDirRead may fail for reasons other than * VERR_NO_MORE_FILES. For instance someone could create an * entry with a name longer than RTDIRENTRY have space to * store (windows host with UTF-16 encoding shorter than 255 * chars, but UTF-8 encoding longer than 260). * - enmType can be RTDIRENTRYTYPE_UNKNOWN if the file system or * the host doesn't return the information. See * RTDIRENTRY::enmType. Use RTDirQueryUnknownType() to get the * actual type. */ RTDIRENTRY DirEntry; while (RT_SUCCESS(RTDirRead(hDir, &DirEntry, NULL))) { if (RTDirEntryIsStdDotLink(&DirEntry)) continue; if (DirEntry.enmType == RTDIRENTRYTYPE_FILE) { Utf8Str fullPath(strRootFolder); filesList.add(strRootFolder, DirEntry.szName); } else if (DirEntry.enmType == RTDIRENTRYTYPE_DIRECTORY) { Utf8Str strNextFolder(strRootFolder); strNextFolder.append(RTPATH_DELIMITER).append(DirEntry.szName); hrc = getFilesList(strNextFolder, filesList); if (FAILED(hrc)) break; } } vrc = RTDirClose(hDir); AssertRC(vrc); } else if (vrc == VERR_FILE_NOT_FOUND) hrc = m_pMachine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc, tr("Folder '%s' doesn't exist (%Rrc)"), strRootFolder.c_str(), vrc); else hrc = m_pMachine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc, tr("Could not open folder '%s' (%Rrc)"), strRootFolder.c_str(), vrc); return hrc; } HRESULT MachineMoveVM::deleteFiles(const RTCList &listOfFiles) { HRESULT hrc = S_OK; /* Delete all created files. */ for (size_t i = 0; i < listOfFiles.size(); ++i) { Log2(("Deleting file %s ...\n", listOfFiles.at(i).c_str())); hrc = m_pProgress->SetNextOperation(BstrFmt(tr("Deleting file %s..."), listOfFiles.at(i).c_str()).raw(), 1); if (FAILED(hrc)) return hrc; int vrc = RTFileDelete(listOfFiles.at(i).c_str()); if (RT_FAILURE(vrc)) return m_pMachine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc, tr("Could not delete file '%s' (%Rrc)"), listOfFiles.at(i).c_str(), vrc); else Log2(("File %s has been deleted\n", listOfFiles.at(i).c_str())); } return hrc; } HRESULT MachineMoveVM::getFolderSize(const Utf8Str &strRootFolder, uint64_t &size) { HRESULT hrc = S_OK; int vrc = 0; uint64_t totalFolderSize = 0; fileList_t filesList; bool ex = RTPathExists(strRootFolder.c_str()); if (ex == true) { hrc = getFilesList(strRootFolder, filesList); if (SUCCEEDED(hrc)) { cit_t it = filesList.m_list.begin(); while (it != filesList.m_list.end()) { uint64_t cbFile = 0; Utf8Str fullPath = it->first; fullPath.append(RTPATH_DELIMITER).append(it->second); vrc = RTFileQuerySizeByPath(fullPath.c_str(), &cbFile); if (RT_SUCCESS(vrc)) { totalFolderSize += cbFile; } else return m_pMachine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc, tr("Could not get the size of file '%s': %Rrc"), fullPath.c_str(), vrc); ++it; } size = totalFolderSize; } } else size = 0; return hrc; } HRESULT MachineMoveVM::queryBaseName(const ComPtr &pMedium, Utf8Str &strBaseName) const { ComPtr pBaseMedium; HRESULT hrc = pMedium->COMGETTER(Base)(pBaseMedium.asOutParam()); if (FAILED(hrc)) return hrc; Bstr bstrBaseName; hrc = pBaseMedium->COMGETTER(Name)(bstrBaseName.asOutParam()); if (FAILED(hrc)) return hrc; strBaseName = bstrBaseName; return hrc; } HRESULT MachineMoveVM::createMachineList(const ComPtr &pSnapshot) { Bstr name; HRESULT hrc = pSnapshot->COMGETTER(Name)(name.asOutParam()); if (FAILED(hrc)) return hrc; ComPtr l_pMachine; hrc = pSnapshot->COMGETTER(Machine)(l_pMachine.asOutParam()); if (FAILED(hrc)) return hrc; machineList.push_back((Machine*)(IMachine*)l_pMachine); SafeIfaceArray sfaChilds; hrc = pSnapshot->COMGETTER(Children)(ComSafeArrayAsOutParam(sfaChilds)); if (FAILED(hrc)) return hrc; for (size_t i = 0; i < sfaChilds.size(); ++i) { hrc = createMachineList(sfaChilds[i]); if (FAILED(hrc)) return hrc; } return hrc; } HRESULT MachineMoveVM::queryMediaForAllStates() { /* In this case we create a exact copy of the original VM. This means just * adding all directly and indirectly attached disk images to the worker * list. */ HRESULT hrc = S_OK; for (size_t i = 0; i < machineList.size(); ++i) { const ComObjPtr &machine = machineList.at(i); /* Add all attachments (and their parents) of the different * machines to a worker list. */ SafeIfaceArray sfaAttachments; hrc = machine->COMGETTER(MediumAttachments)(ComSafeArrayAsOutParam(sfaAttachments)); if (FAILED(hrc)) return hrc; for (size_t a = 0; a < sfaAttachments.size(); ++a) { const ComPtr &pAtt = sfaAttachments[a]; DeviceType_T deviceType;//floppy, hard, DVD hrc = pAtt->COMGETTER(Type)(&deviceType); if (FAILED(hrc)) return hrc; /* Valid medium attached? */ ComPtr pMedium; hrc = pAtt->COMGETTER(Medium)(pMedium.asOutParam()); if (FAILED(hrc)) return hrc; if (pMedium.isNull()) continue; Bstr bstrLocation; hrc = pMedium->COMGETTER(Location)(bstrLocation.asOutParam()); if (FAILED(hrc)) return hrc; /* Cast to ComObjPtr */ ComObjPtr pObjMedium = (Medium *)(IMedium *)pMedium; /* Check for "read-only" medium in terms that VBox can't create this one */ hrc = isMediumTypeSupportedForMoving(pMedium); if (FAILED(hrc)) { if (hrc != S_FALSE) return hrc; Log2(("Skipping file %ls because of this medium type hasn't been supported for moving.\n", bstrLocation.raw())); continue; } MEDIUMTASKCHAINMOVE mtc; mtc.devType = deviceType; mtc.fAttachLinked = false; mtc.fCreateDiffs = false; while (!pMedium.isNull()) { /* Refresh the state so that the file size get read. */ MediumState_T e; hrc = pMedium->RefreshState(&e); if (FAILED(hrc)) return hrc; LONG64 lSize; hrc = pMedium->COMGETTER(Size)(&lSize); if (FAILED(hrc)) return hrc; MediumType_T mediumType;//immutable, shared, passthrough hrc = pMedium->COMGETTER(Type)(&mediumType); if (FAILED(hrc)) return hrc; hrc = pMedium->COMGETTER(Location)(bstrLocation.asOutParam()); if (FAILED(hrc)) return hrc; MEDIUMTASKMOVE mt;// = {false, "basename", NULL, 0, 0}; mt.strBaseName = bstrLocation; Utf8Str const &strFolder = m_vmFolders[VBox_SnapshotFolder]; if (strFolder.isNotEmpty() && RTPathStartsWith(mt.strBaseName.c_str(), strFolder.c_str())) mt.fSnapshot = true; else mt.fSnapshot = false; mt.uIdx = UINT32_MAX; mt.pMedium = pMedium; mt.uWeight = (ULONG)((lSize + _1M - 1) / _1M); mtc.chain.append(mt); /* Query next parent. */ hrc = pMedium->COMGETTER(Parent)(pMedium.asOutParam()); if (FAILED(hrc)) return hrc; } m_llMedia.append(mtc); } /* Add the save state files of this machine if there is one. */ hrc = addSaveState(machine); if (FAILED(hrc)) return hrc; /* Add the NVRAM files of this machine if there is one. */ hrc = addNVRAM(machine); if (FAILED(hrc)) return hrc; } /* Build up the index list of the image chain. Unfortunately we can't do * that in the previous loop, cause there we go from child -> parent and * didn't know how many are between. */ for (size_t i = 0; i < m_llMedia.size(); ++i) { uint32_t uIdx = 0; MEDIUMTASKCHAINMOVE &mtc = m_llMedia.at(i); for (size_t a = mtc.chain.size(); a > 0; --a) mtc.chain[a - 1].uIdx = uIdx++; } return hrc; } HRESULT MachineMoveVM::addSaveState(const ComObjPtr &machine) { Bstr bstrSrcSaveStatePath; HRESULT hrc = machine->COMGETTER(StateFilePath)(bstrSrcSaveStatePath.asOutParam()); if (FAILED(hrc)) return hrc; if (!bstrSrcSaveStatePath.isEmpty()) { SNAPFILETASKMOVE sft; sft.snapshotUuid = machine->i_getSnapshotId(); sft.strFile = bstrSrcSaveStatePath; uint64_t cbSize; int vrc = RTFileQuerySizeByPath(sft.strFile.c_str(), &cbSize); if (RT_FAILURE(vrc)) return m_pMachine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc, tr("Could not get file size of '%s': %Rrc"), sft.strFile.c_str(), vrc); /* same rule as above: count both the data which needs to * be read and written */ sft.uWeight = (ULONG)(2 * (cbSize + _1M - 1) / _1M); m_llSaveStateFiles.append(sft); } return S_OK; } HRESULT MachineMoveVM::addNVRAM(const ComObjPtr &machine) { ComPtr pNvramStore; HRESULT hrc = machine->COMGETTER(NonVolatileStore)(pNvramStore.asOutParam()); if (FAILED(hrc)) return hrc; Bstr bstrSrcNVRAMPath; hrc = pNvramStore->COMGETTER(NonVolatileStorageFile)(bstrSrcNVRAMPath.asOutParam()); if (FAILED(hrc)) return hrc; Utf8Str strSrcNVRAMPath(bstrSrcNVRAMPath); if (!strSrcNVRAMPath.isEmpty() && RTFileExists(strSrcNVRAMPath.c_str())) { SNAPFILETASKMOVE sft; sft.snapshotUuid = machine->i_getSnapshotId(); sft.strFile = strSrcNVRAMPath; uint64_t cbSize; int vrc = RTFileQuerySizeByPath(sft.strFile.c_str(), &cbSize); if (RT_FAILURE(vrc)) return m_pMachine->setErrorBoth(VBOX_E_IPRT_ERROR, vrc, tr("Could not get file size of '%s': %Rrc"), sft.strFile.c_str(), vrc); /* same rule as above: count both the data which needs to * be read and written */ sft.uWeight = (ULONG)(2 * (cbSize + _1M - 1) / _1M); m_llNVRAMFiles.append(sft); } return S_OK; } void MachineMoveVM::updateProgressStats(MEDIUMTASKCHAINMOVE &mtc, ULONG &uCount, ULONG &uTotalWeight) const { /* Currently the copying of diff images involves reading at least * the biggest parent in the previous chain. So even if the new * diff image is small in size, it could need some time to create * it. Adding the biggest size in the chain should balance this a * little bit more, i.e. the weight is the sum of the data which * needs to be read and written. */ ULONG uMaxWeight = 0; for (size_t e = mtc.chain.size(); e > 0; --e) { MEDIUMTASKMOVE &mt = mtc.chain.at(e - 1); mt.uWeight += uMaxWeight; /* Calculate progress data */ ++uCount; uTotalWeight += mt.uWeight; /* Save the max size for better weighting of diff image * creation. */ uMaxWeight = RT_MAX(uMaxWeight, mt.uWeight); } } HRESULT MachineMoveVM::isMediumTypeSupportedForMoving(const ComPtr &pMedium) { Bstr bstrLocation; HRESULT hrc = pMedium->COMGETTER(Location)(bstrLocation.asOutParam()); if (FAILED(hrc)) return hrc; DeviceType_T deviceType; hrc = pMedium->COMGETTER(DeviceType)(&deviceType); if (FAILED(hrc)) return hrc; ComPtr mediumFormat; hrc = pMedium->COMGETTER(MediumFormat)(mediumFormat.asOutParam()); if (FAILED(hrc)) return hrc; /* Check whether VBox is able to create this medium format or not, i.e. medium can be "read-only" */ Bstr bstrFormatName; hrc = mediumFormat->COMGETTER(Name)(bstrFormatName.asOutParam()); if (FAILED(hrc)) return hrc; Utf8Str formatName = Utf8Str(bstrFormatName); if (formatName.compare("VHDX", Utf8Str::CaseInsensitive) == 0) { Log2(("Skipping medium %ls. VHDX format is supported in \"read-only\" mode only.\n", bstrLocation.raw())); return S_FALSE; } /* Check whether medium is represented by file on the disk or not */ ComObjPtr pObjMedium = (Medium *)(IMedium *)pMedium; if (!pObjMedium->i_isMediumFormatFile()) { Log2(("Skipping medium %ls because it's not a real file on the disk.\n", bstrLocation.raw())); return S_FALSE; } /* some special checks for DVD */ if (deviceType == DeviceType_DVD) { Utf8Str ext = bstrLocation; /* only ISO image is moved */ if (!ext.endsWith(".iso", Utf8Str::CaseInsensitive)) { Log2(("Skipping file %ls. Only ISO images are supported for now.\n", bstrLocation.raw())); return S_FALSE; } } return S_OK; }