406 lines
13 KiB
C++
406 lines
13 KiB
C++
/*************************************************************************
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* Copyright (C) 2018 by Caio Carvalho <caiojcarvalho@gmail.com> *
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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 "softwareraid.h"
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#include "backend/corebackend.h"
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#include "backend/corebackendmanager.h"
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#include "core/partition.h"
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#include "core/volumemanagerdevice_p.h"
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#include "fs/filesystem.h"
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#include "fs/filesystemfactory.h"
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#include "util/externalcommand.h"
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#include <KLocalizedString>
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#include <QRegularExpression>
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#define d_ptr std::static_pointer_cast<SoftwareRAIDPrivate>(d)
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class SoftwareRAIDPrivate : public VolumeManagerDevicePrivate
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{
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public:
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qint32 m_raidLevel;
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qint64 m_chunkSize;
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qint64 m_totalChunk;
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qint64 m_arraySize;
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QString m_UUID;
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QStringList m_devicePathList;
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SoftwareRAID::Status m_status;
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};
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SoftwareRAID::SoftwareRAID(const QString& name, SoftwareRAID::Status status, const QString& iconName)
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: VolumeManagerDevice(std::make_shared<SoftwareRAIDPrivate>(),
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name,
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(QStringLiteral("/dev/") + name),
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getChunkSize(QStringLiteral("/dev/") + name),
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getTotalChunk(QStringLiteral("/dev/") + name),
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iconName,
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Device::Type::SoftwareRAID_Device)
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{
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d_ptr->m_raidLevel = getRaidLevel(deviceNode());
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d_ptr->m_chunkSize = logicalSize();
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d_ptr->m_totalChunk = totalLogical();
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d_ptr->m_arraySize = getArraySize(deviceNode());
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d_ptr->m_UUID = getUUID(deviceNode());
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d_ptr->m_devicePathList = getDevicePathList(deviceNode());
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d_ptr->m_status = status;
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initPartitions();
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}
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const QStringList SoftwareRAID::deviceNodes() const
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{
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return d_ptr->m_devicePathList;
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}
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const QStringList& SoftwareRAID::partitionNodes() const
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{
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return {};
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}
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qint64 SoftwareRAID::partitionSize(QString &partitionPath) const
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{
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Q_UNUSED(partitionPath)
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return 0;
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}
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bool SoftwareRAID::growArray(Report &report, const QStringList &devices)
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{
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Q_UNUSED(report)
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Q_UNUSED(devices)
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return false;
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}
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bool SoftwareRAID::shrinkArray(Report &report, const QStringList &devices)
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{
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Q_UNUSED(report)
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Q_UNUSED(devices)
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return false;
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}
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QString SoftwareRAID::prettyName() const
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{
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QString raidInfo;
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if (status() == SoftwareRAID::Status::Active)
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raidInfo = xi18nc("@item:inlistbox [RAID level]", " [RAID %1]", raidLevel());
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else if (status() == SoftwareRAID::Status::Recovery)
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raidInfo = xi18nc("@item:inlistbox [RAID level - Recovering]", " [RAID %1 - Recovering]", raidLevel());
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else if (status() == SoftwareRAID::Status::Resync)
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raidInfo = xi18nc("@item:inlistbox [RAID level - Resyncing]", " [RAID %1 - Resyncing]", raidLevel());
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else
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raidInfo = QStringLiteral(" [RAID]");
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return VolumeManagerDevice::prettyName() + raidInfo;
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}
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bool SoftwareRAID::operator ==(const Device& other) const
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{
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bool equalDeviceNode = Device::operator ==(other);
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if (other.type() == Device::Type::SoftwareRAID_Device) {
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const SoftwareRAID& raid = static_cast<const SoftwareRAID&>(other);
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if (!equalDeviceNode)
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return raid.uuid() == uuid();
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}
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return equalDeviceNode;
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}
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qint32 SoftwareRAID::raidLevel() const
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{
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return d_ptr->m_raidLevel;
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}
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qint64 SoftwareRAID::chunkSize() const
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{
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return d_ptr->m_chunkSize;
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}
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qint64 SoftwareRAID::totalChunk() const
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{
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return d_ptr->m_totalChunk;
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}
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qint64 SoftwareRAID::arraySize() const
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{
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return d_ptr->m_arraySize;
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}
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QString SoftwareRAID::uuid() const
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{
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return d_ptr->m_UUID;
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}
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QStringList SoftwareRAID::devicePathList() const
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{
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return d_ptr->m_devicePathList;
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}
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SoftwareRAID::Status SoftwareRAID::status() const
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{
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return d_ptr->m_status;
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}
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void SoftwareRAID::setStatus(SoftwareRAID::Status status)
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{
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d_ptr->m_status = status;
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}
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void SoftwareRAID::scanSoftwareRAID(QList<Device*>& devices)
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{
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QStringList availableInConf;
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// TODO: Support custom config files.
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QString config = getRAIDConfiguration(QStringLiteral("/etc/mdadm.conf"));
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if (!config.isEmpty()) {
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QRegularExpression re(QStringLiteral("([\\t\\r\\n\\f\\s]|INACTIVE-)ARRAY \\/dev\\/([\\/\\w-]+)"));
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QRegularExpressionMatchIterator i = re.globalMatch(config);
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while (i.hasNext()) {
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QRegularExpressionMatch reMatch = i.next();
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QString deviceName = reMatch.captured(2).trimmed();
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availableInConf << deviceName;
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}
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}
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ExternalCommand scanRaid(QStringLiteral("cat"), { QStringLiteral("/proc/mdstat") });
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if (scanRaid.run(-1) && scanRaid.exitCode() == 0) {
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QRegularExpression re(QStringLiteral("md([\\/\\w]+)\\s+:\\s+([\\w]+)"));
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QRegularExpressionMatchIterator i = re.globalMatch(scanRaid.output());
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while (i.hasNext()) {
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QRegularExpressionMatch reMatch = i.next();
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QString deviceNode = QStringLiteral("/dev/md") + reMatch.captured(1).trimmed();
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QString status = reMatch.captured(2).trimmed();
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SoftwareRAID* d = static_cast<SoftwareRAID *>(CoreBackendManager::self()->backend()->scanDevice(deviceNode));
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bool isInConf = false;
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for (const QString& path : qAsConst(availableInConf)) {
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if (getUUID(QStringLiteral("/dev/") + path) == d->uuid()) {
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isInConf = true;
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availableInConf.removeAll(path);
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break;
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}
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}
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if (isInConf)
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devices << d;
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if (status == QStringLiteral("inactive"))
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d->setStatus(SoftwareRAID::Status::Inactive);
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if (d->raidLevel() > 0) {
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QRegularExpression reMirrorStatus(QStringLiteral("\\[[=>.]+\\]\\s+(resync|recovery)"));
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QRegularExpressionMatch reMirrorStatusMatch = reMirrorStatus.match(scanRaid.output());
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if (reMirrorStatusMatch.hasMatch()) {
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if (reMirrorStatusMatch.captured(1) == QStringLiteral("resync"))
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d->setStatus(SoftwareRAID::Status::Resync);
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else if (reMirrorStatusMatch.captured(1) == QStringLiteral("recovery"))
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d->setStatus(SoftwareRAID::Status::Recovery);
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}
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}
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}
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}
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for (const QString& name : qAsConst(availableInConf)) {
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SoftwareRAID *raidDevice = new SoftwareRAID(name, SoftwareRAID::Status::Inactive);
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devices << raidDevice;
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}
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}
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qint32 SoftwareRAID::getRaidLevel(const QString &path)
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{
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QString output = getDetail(path);
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if (!output.isEmpty()) {
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QRegularExpression re(QStringLiteral("Raid Level :\\s+\\w+(\\d+)"));
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QRegularExpressionMatch reMatch = re.match(output);
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if (reMatch.hasMatch())
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return reMatch.captured(1).toLongLong();
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}
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return -1;
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}
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qint64 SoftwareRAID::getChunkSize(const QString &path)
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{
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QString output = getDetail(path);
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if (!output.isEmpty()) {
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QRegularExpression re(QStringLiteral("Chunk Size :\\s+(\\d+)"));
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QRegularExpressionMatch reMatch = re.match(output);
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if (reMatch.hasMatch())
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return reMatch.captured(1).toLongLong();
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}
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return -1;
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}
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qint64 SoftwareRAID::getTotalChunk(const QString &path)
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{
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return getArraySize(path) / getChunkSize(path);
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}
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qint64 SoftwareRAID::getArraySize(const QString &path)
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{
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QString output = getDetail(path);
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if (!output.isEmpty()) {
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QRegularExpression re(QStringLiteral("Array Size :\\s+(\\d+)"));
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QRegularExpressionMatch reMatch = re.match(output);
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if (reMatch.hasMatch())
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return reMatch.captured(1).toLongLong() * 1024;
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}
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return -1;
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}
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QString SoftwareRAID::getUUID(const QString &path)
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{
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QString output = getDetail(path);
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if (!output.isEmpty()) {
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QRegularExpression re(QStringLiteral("UUID :\\s+([\\w:]+)"));
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QRegularExpressionMatch reMatch = re.match(output);
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if (reMatch.hasMatch())
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return reMatch.captured(1);
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}
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// If UUID was not found in detail output, it should be searched in config file
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// TODO: Support custom config files.
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QString config = getRAIDConfiguration(QStringLiteral("/etc/mdadm.conf"));
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if (!config.isEmpty()) {
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QRegularExpression re(QStringLiteral("([\\t\\r\\n\\f\\s]|INACTIVE-)ARRAY \\/dev\\/md([\\/\\w-]+)(.*)"));
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QRegularExpressionMatchIterator i = re.globalMatch(config);
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while (i.hasNext()) {
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QRegularExpressionMatch reMatch = i.next();
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QString deviceNode = QStringLiteral("/dev/md") + reMatch.captured(2).trimmed();
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QString otherInfo = reMatch.captured(3).trimmed();
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// Consider device node as name=host:deviceNode when the captured device node string has '-' character
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// It happens when user have included the device to config file using 'mdadm --examine --scan'
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if (deviceNode.contains(QLatin1Char('-'))) {
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QRegularExpression reName(QStringLiteral("name=[\\w:]+\\/dev\\/md\\/([\\/\\w]+)"));
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QRegularExpressionMatch nameMatch = reName.match(otherInfo);
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if (nameMatch.hasMatch())
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deviceNode = nameMatch.captured(1);
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}
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if (deviceNode == path) {
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QRegularExpression reUUID(QStringLiteral("(UUID=|uuid=)([\\w:]+)"));
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QRegularExpressionMatch uuidMatch = reUUID.match(otherInfo);
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if (uuidMatch.hasMatch())
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return uuidMatch.captured(2);
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}
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}
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}
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return QString();
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}
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QStringList SoftwareRAID::getDevicePathList(const QString &path)
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{
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Q_UNUSED(path)
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return {};
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}
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bool SoftwareRAID::isRaidPath(const QString &path)
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{
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return !getDetail(path).isEmpty();
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}
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bool SoftwareRAID::createSoftwareRAID(Report &report,
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const QString &name,
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const QStringList devicePathList,
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const qint32 raidLevel,
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const qint32 chunkSize)
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{
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return false;
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}
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bool SoftwareRAID::deleteSoftwareRAID(Report &report,
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SoftwareRAID &raidDevice)
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{
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Q_UNUSED(report)
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Q_UNUSED(raidDevice)
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return false;
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}
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bool SoftwareRAID::assembleSoftwareRAID(const QString& deviceNode)
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{
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if (!isRaidPath(deviceNode))
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return false;
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ExternalCommand cmd(QStringLiteral("mdadm"),
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{ QStringLiteral("--assemble"), QStringLiteral("--scan"), deviceNode });
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return cmd.run(-1) && cmd.exitCode() == 0;
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}
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bool SoftwareRAID::stopSoftwareRAID(const QString& deviceNode)
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{
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if (!isRaidPath(deviceNode))
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return false;
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ExternalCommand cmd(QStringLiteral("mdadm"),
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{ QStringLiteral("--manage"), QStringLiteral("--stop"), deviceNode });
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return cmd.run(-1) && cmd.exitCode() == 0;
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}
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bool SoftwareRAID::reassembleSoftwareRAID(const QString &deviceNode)
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{
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return stopSoftwareRAID(deviceNode) && assembleSoftwareRAID(deviceNode);
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}
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void SoftwareRAID::initPartitions()
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{
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}
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qint64 SoftwareRAID::mappedSector(const QString &partitionPath, qint64 sector) const
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{
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return -1;
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}
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QString SoftwareRAID::getDetail(const QString &path)
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{
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ExternalCommand cmd(QStringLiteral("mdadm"),
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{ QStringLiteral("--misc"), QStringLiteral("--detail"), path });
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return (cmd.run(-1) && cmd.exitCode() == 0) ? cmd.output() : QString();
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}
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QString SoftwareRAID::getRAIDConfiguration(const QString &configurationPath)
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{
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ExternalCommand cmd(QStringLiteral("cat"), { configurationPath });
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return (cmd.run(-1) && cmd.exitCode() == 0) ? cmd.output() : QString();
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}
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