2016-06-08 16:50:40 +01:00
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/*************************************************************************
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2016-06-10 15:03:17 +01:00
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* Copyright (C) 2016 by Chantara Tith <tith.chantara@gmail.com> *
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2016-06-08 16:50:40 +01:00
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License as *
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* published by the Free Software Foundation; either version 3 of *
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* the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>.*
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*************************************************************************/
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#include "core/lvmdevice.h"
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2016-06-10 15:03:17 +01:00
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#include "fs/filesystem.h"
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2016-07-09 12:50:00 +01:00
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#include "fs/lvm2_pv.h"
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2016-07-22 20:37:23 +01:00
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#include "fs/luks.h"
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2016-06-10 15:03:17 +01:00
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#include "fs/filesystemfactory.h"
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#include "core/partition.h"
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2016-06-08 16:50:40 +01:00
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#include "core/partitiontable.h"
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#include "util/externalcommand.h"
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2016-06-13 00:39:54 +01:00
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#include "util/helpers.h"
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2016-06-08 16:50:40 +01:00
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#include <QRegularExpression>
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2016-06-10 15:03:17 +01:00
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#include <QStringList>
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2016-06-13 00:39:54 +01:00
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#include <KMountPoint>
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2016-06-18 20:54:52 +01:00
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#include <KDiskFreeSpaceInfo>
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2016-06-23 19:41:55 +01:00
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#include <KLocalizedString>
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2016-06-08 16:50:40 +01:00
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/** Constructs a representation of LVM device with functionning LV as Partition
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2016-06-18 20:54:52 +01:00
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*
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* @param name Volume Group name
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*/
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2016-06-08 16:50:40 +01:00
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LvmDevice::LvmDevice(const QString& name, const QString& iconname)
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: VolumeManagerDevice(name,
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(QStringLiteral("/dev/") + name),
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getPeSize(name),
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getTotalPE(name),
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iconname,
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Device::LVM_Device)
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, m_peSize(getPeSize(name))
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, m_totalPE(getTotalPE(name))
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, m_allocPE(getAllocatedPE(name))
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, m_freePE(getFreePE(name))
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2016-06-10 15:03:17 +01:00
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, m_UUID(getUUID(name))
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2016-06-08 16:50:40 +01:00
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{
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initPartitions();
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}
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void LvmDevice::initPartitions()
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{
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qint64 firstUsable = 0;
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qint64 lastusable = totalPE() - 1;
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PartitionTable* pTable = new PartitionTable(PartitionTable::vmd, firstUsable, lastusable);
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foreach (Partition* p, scanPartitions(*this, pTable)) {
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pTable->append(p);
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}
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2016-06-23 19:41:55 +01:00
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2016-06-25 05:36:24 +01:00
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pTable->updateUnallocated(*this);
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2016-06-12 14:09:46 +01:00
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setPartitionTable(pTable);
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}
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/**
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* @returns sorted Partition(LV) Array
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*/
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2016-06-23 19:41:55 +01:00
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QList<Partition*> LvmDevice::scanPartitions(const LvmDevice& dev, PartitionTable* pTable) const
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{
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QList<Partition*> pList;
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foreach (QString lvPath, lvPathList()) {
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pList.append(scanPartition(lvPath, dev, pTable));
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}
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return pList;
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}
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/**
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* @returns sorted Partition(LV) Array
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*/
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Partition* LvmDevice::scanPartition(const QString& lvpath, const LvmDevice& dev, PartitionTable* pTable) const
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{
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/*
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* NOTE:
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* LVM partition have 2 different start and end sector value
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* 1. representing the actual LV start from 0 -> size of LV - 1
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* 2. representing abstract LV's sector inside a VG partitionTable
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2016-07-20 19:43:44 +01:00
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* start from last sector + 1 of last Partitions -> size of LV - 1
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2016-06-18 20:54:52 +01:00
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* Reason for this is for the LV Partition to worrks nicely with other parts of the codebase
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* without too many special cases.
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*/
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2016-07-22 20:37:23 +01:00
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qint64 lvSize = getTotalLE(lvpath);
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qint64 startSector = mappedSector(lvpath, 0);
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qint64 endSector = startSector + lvSize - 1;
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FileSystem::Type type = FileSystem::detectFileSystem(lvpath);
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FileSystem* fs = FileSystemFactory::create(type, 0, lvSize - 1);
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bool mounted = isMounted(lvpath);
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QString mountPoint = QString();
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KMountPoint::List mountPointList = KMountPoint::currentMountPoints(KMountPoint::NeedRealDeviceName);
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mountPointList.append(KMountPoint::possibleMountPoints(KMountPoint::NeedRealDeviceName));
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2016-06-25 18:25:05 +01:00
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2016-07-22 20:37:23 +01:00
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PartitionRole::Roles r = PartitionRole::Lvm_Lv;
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if (type == FileSystem::Luks) {
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r |= PartitionRole::Luks;
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FS::luks* luksFs = dynamic_cast<FS::luks*>(fs);
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QString mapperNode = FS::luks::mapperName(lvpath);
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bool isCryptOpen = !mapperNode.isEmpty();
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luksFs->setCryptOpen(isCryptOpen);
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luksFs->setLogicalSectorSize(dev.logicalSize());
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if (isCryptOpen) {
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luksFs->loadInnerFileSystem(lvpath, mapperNode);
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mountPoint = mountPointList.findByDevice(mapperNode) ?
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mountPointList.findByDevice(mapperNode)->mountPoint() :
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QString();
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mounted = isMounted(mapperNode);
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if (mounted) {
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const KDiskFreeSpaceInfo freeSpaceInfo = KDiskFreeSpaceInfo::freeSpaceInfo(mountPoint);
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if (freeSpaceInfo.isValid() && mountPoint != QString())
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2016-07-23 13:28:46 +01:00
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luksFs->setSectorsUsed((freeSpaceInfo.used() + luksFs->getPayloadOffset(lvpath)) / dev.logicalSize());
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2016-07-22 20:37:23 +01:00
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}
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} else {
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mounted = false;
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}
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luksFs->setMounted(mounted);
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} else {
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mountPoint = mountPointList.findByDevice(lvpath) ?
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mountPointList.findByDevice(lvpath)->mountPoint() :
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QString();
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const KDiskFreeSpaceInfo freeSpaceInfo = KDiskFreeSpaceInfo::freeSpaceInfo(mountPoint);
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//TODO: test used space report. probably incorrect
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if (mounted && freeSpaceInfo.isValid() && mountPoint != QString()) {
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fs->setSectorsUsed(freeSpaceInfo.used() / logicalSize());
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} else if (fs->supportGetUsed() == FileSystem::cmdSupportFileSystem) {
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fs->setSectorsUsed(fs->readUsedCapacity(lvpath) / logicalSize());
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}
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}
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2016-06-13 00:39:54 +01:00
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2016-06-18 23:24:05 +01:00
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if (fs->supportGetLabel() != FileSystem::cmdSupportNone) {
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fs->setLabel(fs->readLabel(lvpath));
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}
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2016-06-10 15:03:17 +01:00
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Partition* part = new Partition(pTable,
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dev,
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PartitionRole(r),
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fs,
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startSector,
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endSector,
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lvpath,
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PartitionTable::Flag::FlagLvm,
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mountPoint,
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mounted);
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return part;
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2016-06-08 16:50:40 +01:00
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}
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2016-07-28 14:21:31 +01:00
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QList<LvmDevice*> LvmDevice::scanSystemLVM()
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{
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QList<LvmDevice*> lvmList;
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QString output = getField(QStringLiteral("vg_name"));
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if (!output.isEmpty()) {
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QStringList vgnameList = output.split(QStringLiteral("\n"), QString::SkipEmptyParts);
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foreach(QString vgname, vgnameList) {
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lvmList.append(new LvmDevice(vgname.trimmed()));
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}
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}
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return lvmList;
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}
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2016-06-18 20:54:52 +01:00
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qint64 LvmDevice::mappedSector(const QString& lvpath, qint64 sector) const
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{
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qint64 mSector = 0;
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QList<QString> lvpathList = lvPathList();
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qint32 devIndex = lvpathList.indexOf(lvpath);
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if (devIndex) {
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for (int i = 0; i < devIndex; i++) {
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//TODO: currently going over the same LV again and again is wasteful. Could use some more optimization
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mSector += getTotalLE(lvpathList[i]);
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}
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mSector += sector;
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}
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return mSector;
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}
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2016-07-09 00:52:28 +01:00
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QStringList LvmDevice::getPVs(const QString& vgname)
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2016-06-08 16:50:40 +01:00
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{
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2016-07-09 00:52:28 +01:00
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QStringList devPathList;
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QString cmdOutput = getField(QStringLiteral("pv_name"), vgname);
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2016-06-12 14:09:46 +01:00
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if (cmdOutput.size()) {
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2016-07-09 00:52:28 +01:00
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QStringList tempPathList = cmdOutput.split(QStringLiteral("\n"), QString::SkipEmptyParts);
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2016-06-12 14:09:46 +01:00
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foreach(QString devPath, tempPathList) {
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devPathList.append(devPath.trimmed());
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2016-06-08 16:50:40 +01:00
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}
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}
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2016-06-12 14:09:46 +01:00
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return devPathList;
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}
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2016-07-09 00:52:28 +01:00
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QList<QString> LvmDevice::deviceNodeList() const
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{
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return getPVs(name());
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}
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QStringList LvmDevice::getLVs(const QString& vgname)
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2016-06-18 20:54:52 +01:00
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{
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QStringList lvPathList;
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QString cmdOutput = getField(QStringLiteral("lv_path"), vgname);
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2016-06-18 20:54:52 +01:00
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if (cmdOutput.size()) {
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2016-07-09 00:52:28 +01:00
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QStringList tempPathList = cmdOutput.split(QStringLiteral("\n"), QString::SkipEmptyParts);
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2016-06-18 20:54:52 +01:00
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foreach(QString lvPath, tempPathList) {
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lvPathList.append(lvPath.trimmed());
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}
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}
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return lvPathList;
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}
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2016-07-09 00:52:28 +01:00
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QList<QString> LvmDevice::lvPathList() const
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{
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return getLVs(name());
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}
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2016-07-15 21:54:38 +01:00
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qint64 LvmDevice::getPeSize(const QString& vgname)
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2016-06-12 14:09:46 +01:00
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{
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QString val = getField(QStringLiteral("vg_extent_size"), vgname);
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return val.isEmpty() ? -1 : val.toInt();
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2016-06-08 16:50:40 +01:00
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}
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2016-06-26 11:54:47 +01:00
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qint64 LvmDevice::getTotalPE(const QString& vgname)
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2016-06-08 16:50:40 +01:00
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{
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2016-06-12 14:09:46 +01:00
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QString val = getField(QStringLiteral("vg_extent_count"), vgname);
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return val.isEmpty() ? -1 : val.toInt();
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2016-06-08 16:50:40 +01:00
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}
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2016-07-15 21:54:38 +01:00
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qint64 LvmDevice::getAllocatedPE(const QString& vgname)
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2016-06-08 16:50:40 +01:00
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{
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2016-06-12 14:09:46 +01:00
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return getTotalPE(vgname) - getFreePE(vgname);
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2016-06-08 16:50:40 +01:00
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}
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2016-07-15 21:54:38 +01:00
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qint64 LvmDevice::getFreePE(const QString& vgname)
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2016-06-08 16:50:40 +01:00
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{
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2016-06-12 14:09:46 +01:00
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QString val = getField(QStringLiteral("vg_free_count"), vgname);
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return val.isEmpty() ? -1 : val.toInt();
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2016-06-08 16:50:40 +01:00
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}
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2016-06-10 15:03:17 +01:00
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QString LvmDevice::getUUID(const QString& vgname)
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2016-06-12 14:09:46 +01:00
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{
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QString val = getField(QStringLiteral("vg_uuid"), vgname);
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return val.isEmpty() ? QStringLiteral("---") : val;
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}
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2016-06-18 20:54:52 +01:00
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2016-06-23 19:41:55 +01:00
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/** Get LVM vgs command output with field name
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2016-06-13 00:39:54 +01:00
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*
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* @param fieldName lvm field name
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* @param vgname
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* @returns raw output of command output, usully with manay spaces within the returned string
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* */
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2016-06-12 14:09:46 +01:00
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QString LvmDevice::getField(const QString& fieldName, const QString& vgname)
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2016-06-10 15:03:17 +01:00
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{
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2016-07-04 02:33:07 +01:00
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QStringList args = { QStringLiteral("vgs"),
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2016-06-12 14:09:46 +01:00
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QStringLiteral("--foreign"),
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QStringLiteral("--readonly"),
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QStringLiteral("--noheadings"),
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QStringLiteral("--units"),
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QStringLiteral("B"),
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2016-06-12 14:09:46 +01:00
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QStringLiteral("--nosuffix"),
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QStringLiteral("--options"),
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2016-07-04 02:33:07 +01:00
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fieldName };
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if (!vgname.isEmpty()) {
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args << vgname;
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}
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ExternalCommand cmd(QStringLiteral("lvm"), args);
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2016-06-10 15:03:17 +01:00
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if (cmd.run(-1) && cmd.exitCode() == 0) {
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2016-06-12 14:09:46 +01:00
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return cmd.output().trimmed();
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2016-06-10 15:03:17 +01:00
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}
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2016-06-12 14:09:46 +01:00
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return QString();
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2016-06-10 15:03:17 +01:00
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}
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2016-06-18 20:54:52 +01:00
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2016-07-15 21:54:38 +01:00
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qint64 LvmDevice::getTotalLE(const QString& lvpath)
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2016-06-18 20:54:52 +01:00
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{
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ExternalCommand cmd(QStringLiteral("lvm"),
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{ QStringLiteral("lvdisplay"),
|
|
|
|
lvpath});
|
|
|
|
|
|
|
|
if (cmd.run(-1) && cmd.exitCode() == 0) {
|
|
|
|
QRegularExpression re(QStringLiteral("Current LE\\h+(\\d+)"));
|
|
|
|
QRegularExpressionMatch match = re.match(cmd.output());
|
|
|
|
if (match.hasMatch()) {
|
|
|
|
return match.captured(1).toInt();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return -1;
|
|
|
|
}
|
2016-06-18 21:58:40 +01:00
|
|
|
|
2016-06-23 19:41:55 +01:00
|
|
|
bool LvmDevice::removeLV(Report& report, LvmDevice& dev, Partition& part)
|
2016-06-18 21:58:40 +01:00
|
|
|
{
|
2016-06-25 05:41:00 +01:00
|
|
|
ExternalCommand cmd(report, QStringLiteral("lvm"),
|
2016-06-18 21:58:40 +01:00
|
|
|
{ QStringLiteral("lvremove"),
|
|
|
|
QStringLiteral("--yes"),
|
|
|
|
part.partitionPath()});
|
|
|
|
|
|
|
|
if (cmd.run(-1) && cmd.exitCode() == 0) {
|
2016-06-23 19:41:55 +01:00
|
|
|
//TODO: remove Partition from PartitionTable and delete from memory ??
|
2016-06-18 21:58:40 +01:00
|
|
|
dev.partitionTable()->remove(&part);
|
|
|
|
return true;
|
|
|
|
}
|
2016-06-23 19:41:55 +01:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool LvmDevice::createLV(Report& report, LvmDevice& dev, Partition& part, const QString& lvname)
|
|
|
|
{
|
2016-06-25 05:41:00 +01:00
|
|
|
ExternalCommand cmd(report, QStringLiteral("lvm"),
|
2016-06-23 19:41:55 +01:00
|
|
|
{ QStringLiteral("lvcreate"),
|
|
|
|
QStringLiteral("--yes"),
|
|
|
|
QStringLiteral("--extents"),
|
|
|
|
QString::number(part.length()),
|
|
|
|
QStringLiteral("--name"),
|
|
|
|
lvname,
|
|
|
|
dev.name()});
|
|
|
|
|
2016-06-25 05:41:00 +01:00
|
|
|
return (cmd.run(-1) && cmd.exitCode() == 0);
|
2016-06-23 19:41:55 +01:00
|
|
|
}
|
|
|
|
|
2016-06-25 19:13:09 +01:00
|
|
|
bool LvmDevice::resizeLV(Report& report, LvmDevice& dev, Partition& part)
|
2016-06-23 19:41:55 +01:00
|
|
|
{
|
|
|
|
Q_UNUSED(dev);
|
2016-06-25 19:13:09 +01:00
|
|
|
//TODO: through tests and add warning that it could currupt the user data.
|
2016-06-25 05:41:00 +01:00
|
|
|
ExternalCommand cmd(report, QStringLiteral("lvm"),
|
2016-06-23 19:41:55 +01:00
|
|
|
{ QStringLiteral("lvresize"),
|
2016-06-25 19:13:09 +01:00
|
|
|
QStringLiteral("--force"), // this command could corrupt user data
|
|
|
|
QStringLiteral("--yes"),
|
2016-06-23 19:41:55 +01:00
|
|
|
QStringLiteral("--extents"),
|
|
|
|
QString::number(part.length()),
|
|
|
|
part.partitionPath()});
|
|
|
|
|
2016-06-25 05:41:00 +01:00
|
|
|
return (cmd.run(-1) && cmd.exitCode() == 0);
|
2016-06-23 19:41:55 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
bool LvmDevice::removePV(Report& report, LvmDevice& dev, const QString& pvPath)
|
|
|
|
{
|
|
|
|
//TODO: through tests
|
2016-06-25 05:41:00 +01:00
|
|
|
ExternalCommand cmd(report, QStringLiteral("lvm"),
|
2016-06-23 19:41:55 +01:00
|
|
|
{ QStringLiteral("vgreduce"),
|
|
|
|
//QStringLiteral("--yes"), // potentially corrupt user data
|
|
|
|
dev.name(),
|
|
|
|
pvPath});
|
|
|
|
|
2016-06-25 05:41:00 +01:00
|
|
|
return (cmd.run(-1) && cmd.exitCode() == 0);
|
2016-06-23 19:41:55 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
bool LvmDevice::insertPV(Report& report, LvmDevice& dev, const QString& pvPath)
|
|
|
|
{
|
|
|
|
//TODO: through tests
|
2016-06-25 05:41:00 +01:00
|
|
|
ExternalCommand cmd(report, QStringLiteral("lvm"),
|
2016-06-23 19:41:55 +01:00
|
|
|
{ QStringLiteral("vgextend"),
|
|
|
|
//QStringLiteral("--yes"), // potentially corrupt user data
|
|
|
|
dev.name(),
|
|
|
|
pvPath});
|
|
|
|
|
2016-06-25 05:41:00 +01:00
|
|
|
return (cmd.run(-1) && cmd.exitCode() == 0);
|
2016-06-18 21:58:40 +01:00
|
|
|
}
|
2016-07-11 14:00:44 +01:00
|
|
|
bool LvmDevice::movePV(Report& report, LvmDevice& dev, const QString& pvPath, const QStringList& destinations)
|
2016-07-04 02:13:26 +01:00
|
|
|
{
|
|
|
|
Q_UNUSED(dev);
|
2016-07-09 12:50:00 +01:00
|
|
|
|
|
|
|
if (FS::lvm2_pv::getAllocatedPE(pvPath) <= 0) {
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2016-07-11 14:00:44 +01:00
|
|
|
QStringList args = QStringList();
|
|
|
|
args << QStringLiteral("pvmove");
|
|
|
|
args << pvPath;
|
|
|
|
if (!destinations.isEmpty()) {
|
|
|
|
foreach (QString destPath, destinations) {
|
|
|
|
args << destPath.trimmed();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
ExternalCommand cmd(report, QStringLiteral("lvm"), args);
|
2016-07-04 02:13:26 +01:00
|
|
|
return (cmd.run(-1) && cmd.exitCode() == 0);
|
|
|
|
}
|
2016-06-29 16:08:32 +01:00
|
|
|
|
2016-07-18 01:06:56 +01:00
|
|
|
bool LvmDevice::createVG(Report& report, const QString vgname, const QStringList pvlist, const qint32 peSize)
|
2016-06-29 16:08:32 +01:00
|
|
|
{
|
|
|
|
//TODO: check that all the pv in pvlist is lvm2_pv
|
|
|
|
QStringList args = QStringList();
|
2016-07-18 01:06:56 +01:00
|
|
|
args << QStringLiteral("vgcreate") << QStringLiteral("--physicalextentsize") << QString::number(peSize);
|
|
|
|
args << vgname;
|
2016-07-03 09:01:49 +01:00
|
|
|
foreach (QString pvnode, pvlist) {
|
2016-07-03 12:11:10 +01:00
|
|
|
args << pvnode.trimmed();
|
2016-06-29 16:08:32 +01:00
|
|
|
}
|
|
|
|
ExternalCommand cmd(report, QStringLiteral("lvm"), args);
|
|
|
|
|
|
|
|
return (cmd.run(-1) && cmd.exitCode() == 0);
|
|
|
|
}
|
2016-07-03 09:01:49 +01:00
|
|
|
|
2016-07-03 14:02:48 +01:00
|
|
|
bool LvmDevice::removeVG(Report& report, LvmDevice& dev)
|
2016-07-03 09:01:49 +01:00
|
|
|
{
|
2016-07-24 18:14:06 +01:00
|
|
|
bool deactivated = false;
|
|
|
|
ExternalCommand deactivate(report, QStringLiteral("lvm"),
|
|
|
|
{ QStringLiteral("vgchange"),
|
|
|
|
QStringLiteral("--activate"), QStringLiteral("n"),
|
|
|
|
dev.name() });
|
|
|
|
deactivated = deactivate.run(-1) && deactivate.exitCode() == 0;
|
|
|
|
|
2016-07-03 09:01:49 +01:00
|
|
|
ExternalCommand cmd(report, QStringLiteral("lvm"),
|
|
|
|
{ QStringLiteral("vgremove"),
|
2016-07-03 14:02:48 +01:00
|
|
|
dev.name() });
|
2016-07-24 18:14:06 +01:00
|
|
|
return (deactivated && cmd.run(-1) && cmd.exitCode() == 0);
|
2016-07-03 09:01:49 +01:00
|
|
|
}
|