192 lines
6.3 KiB
C++
192 lines
6.3 KiB
C++
/*
|
|
SPDX-FileCopyrightText: 2008-2010 Volker Lanz <vl@fidra.de>
|
|
SPDX-FileCopyrightText: 2012-2018 Andrius Štikonas <andrius@stikonas.eu>
|
|
SPDX-FileCopyrightText: 2016 Teo Mrnjavac <teo@kde.org>
|
|
SPDX-FileCopyrightText: 2016 Chantara Tith <tith.chantara@gmail.com>
|
|
SPDX-FileCopyrightText: 2019 Yuri Chornoivan <yurchor@ukr.net>
|
|
SPDX-FileCopyrightText: 2020 Arnaud Ferraris <arnaud.ferraris@collabora.com>
|
|
SPDX-FileCopyrightText: 2020 Gaël PORTAY <gael.portay@collabora.com>
|
|
|
|
SPDX-License-Identifier: GPL-3.0-or-later
|
|
*/
|
|
|
|
#include "fs/linuxswap.h"
|
|
|
|
#include "util/externalcommand.h"
|
|
|
|
#include <KLocalizedString>
|
|
|
|
#include <QFileInfo>
|
|
#include <QRegularExpression>
|
|
#include <QTextStream>
|
|
|
|
namespace FS
|
|
{
|
|
FileSystem::CommandSupportType linuxswap::m_Create = FileSystem::cmdSupportNone;
|
|
FileSystem::CommandSupportType linuxswap::m_Grow = FileSystem::cmdSupportNone;
|
|
FileSystem::CommandSupportType linuxswap::m_Shrink = FileSystem::cmdSupportNone;
|
|
FileSystem::CommandSupportType linuxswap::m_Move = FileSystem::cmdSupportNone;
|
|
FileSystem::CommandSupportType linuxswap::m_Copy = FileSystem::cmdSupportNone;
|
|
FileSystem::CommandSupportType linuxswap::m_GetUsed = FileSystem::cmdSupportNone;
|
|
FileSystem::CommandSupportType linuxswap::m_GetLabel = FileSystem::cmdSupportNone;
|
|
FileSystem::CommandSupportType linuxswap::m_SetLabel = FileSystem::cmdSupportNone;
|
|
FileSystem::CommandSupportType linuxswap::m_GetUUID = FileSystem::cmdSupportNone;
|
|
FileSystem::CommandSupportType linuxswap::m_UpdateUUID = FileSystem::cmdSupportNone;
|
|
|
|
linuxswap::linuxswap(qint64 firstsector, qint64 lastsector, qint64 sectorsused, const QString& label, const QVariantMap& features) :
|
|
FileSystem(firstsector, lastsector, sectorsused, label, features, FileSystem::Type::LinuxSwap)
|
|
{
|
|
}
|
|
|
|
void linuxswap::init()
|
|
{
|
|
m_SetLabel = m_Shrink = m_Grow = m_Create = m_UpdateUUID = (findExternal(QStringLiteral("mkswap"))) ? cmdSupportFileSystem : cmdSupportNone;
|
|
m_GetLabel = cmdSupportCore;
|
|
m_GetUsed = cmdSupportFileSystem;
|
|
m_Copy = cmdSupportFileSystem;
|
|
m_Move = cmdSupportCore;
|
|
m_GetUUID = cmdSupportCore;
|
|
}
|
|
|
|
bool linuxswap::supportToolFound() const
|
|
{
|
|
return
|
|
m_GetUsed != cmdSupportNone &&
|
|
m_GetLabel != cmdSupportNone &&
|
|
m_SetLabel != cmdSupportNone &&
|
|
m_Create != cmdSupportNone &&
|
|
// m_Check != cmdSupportNone &&
|
|
m_UpdateUUID != cmdSupportNone &&
|
|
m_Grow != cmdSupportNone &&
|
|
m_Shrink != cmdSupportNone &&
|
|
m_Copy != cmdSupportNone &&
|
|
m_Move != cmdSupportNone &&
|
|
// m_Backup != cmdSupportNone &&
|
|
m_GetUUID != cmdSupportNone;
|
|
}
|
|
|
|
FileSystem::SupportTool linuxswap::supportToolName() const
|
|
{
|
|
return SupportTool(QStringLiteral("util-linux"), QUrl(QStringLiteral("https://github.com/karelzak/util-linux")));
|
|
}
|
|
|
|
int linuxswap::maxLabelLength() const
|
|
{
|
|
return 15;
|
|
}
|
|
|
|
bool linuxswap::create(Report& report, const QString& deviceNode)
|
|
{
|
|
ExternalCommand cmd(report, QStringLiteral("mkswap"), { deviceNode });
|
|
return cmd.run(-1) && cmd.exitCode() == 0;
|
|
}
|
|
|
|
bool linuxswap::resize(Report& report, const QString& deviceNode, qint64 length) const
|
|
{
|
|
Q_UNUSED(length)
|
|
const QString label = readLabel(deviceNode);
|
|
const QString uuid = readUUID(deviceNode);
|
|
|
|
QStringList args;
|
|
if (!label.isEmpty())
|
|
args << QStringLiteral("--label") << label;
|
|
if (!uuid.isEmpty())
|
|
args << QStringLiteral("--uuid") << uuid;
|
|
|
|
args << deviceNode;
|
|
|
|
ExternalCommand cmd(report, QStringLiteral("mkswap"), args);
|
|
return cmd.run(-1) && cmd.exitCode() == 0;
|
|
}
|
|
|
|
bool linuxswap::copy(Report& report, const QString& targetDeviceNode, const QString& sourceDeviceNode) const
|
|
{
|
|
const QString label = readLabel(sourceDeviceNode);
|
|
const QString uuid = readUUID(sourceDeviceNode);
|
|
|
|
QStringList args;
|
|
if (!label.isEmpty())
|
|
args << QStringLiteral("--label") << label;
|
|
if (!uuid.isEmpty())
|
|
args << QStringLiteral("--uuid") << uuid;
|
|
|
|
args << targetDeviceNode;
|
|
|
|
ExternalCommand cmd(report, QStringLiteral("mkswap"), args);
|
|
return cmd.run(-1) && cmd.exitCode() == 0;
|
|
}
|
|
|
|
bool linuxswap::writeLabel(Report& report, const QString& deviceNode, const QString& newLabel)
|
|
{
|
|
ExternalCommand cmd(report, QStringLiteral("swaplabel"), { QStringLiteral("--label"), newLabel, deviceNode });
|
|
return cmd.run(-1) && cmd.exitCode() == 0;
|
|
}
|
|
|
|
bool linuxswap::writeLabelOnline(Report& report, const QString& deviceNode, const QString& mountPoint, const QString& newLabel)
|
|
{
|
|
Q_UNUSED(mountPoint)
|
|
return writeLabel(report, deviceNode, newLabel);
|
|
}
|
|
|
|
QString linuxswap::mountTitle() const
|
|
{
|
|
return xi18nc("@title:menu", "Activate swap");
|
|
}
|
|
|
|
QString linuxswap::unmountTitle() const
|
|
{
|
|
return xi18nc("@title:menu", "Deactivate swap");
|
|
}
|
|
|
|
bool linuxswap::canMount(const QString& deviceNode, const QString& mountPoint) const {
|
|
Q_UNUSED(deviceNode)
|
|
// linux swap doesn't require mount point to activate
|
|
return mountPoint != QStringLiteral("/");
|
|
}
|
|
|
|
bool linuxswap::mount(Report& report, const QString& deviceNode, const QString& mountPoint)
|
|
{
|
|
Q_UNUSED(mountPoint)
|
|
ExternalCommand cmd(report, QStringLiteral("swapon"), { deviceNode });
|
|
return cmd.run(-1) && cmd.exitCode() == 0;
|
|
}
|
|
|
|
bool linuxswap::unmount(Report& report, const QString& deviceNode)
|
|
{
|
|
ExternalCommand cmd(report, QStringLiteral("swapoff"), { deviceNode });
|
|
return cmd.run(-1) && cmd.exitCode() == 0;
|
|
}
|
|
|
|
bool linuxswap::updateUUID(Report& report, const QString& deviceNode) const
|
|
{
|
|
const QString label = readLabel(deviceNode);
|
|
|
|
QStringList args;
|
|
if (!label.isEmpty())
|
|
args << QStringLiteral("--label") << label;
|
|
|
|
args << deviceNode;
|
|
|
|
ExternalCommand cmd(report, QStringLiteral("mkswap"), args);
|
|
return cmd.run(-1) && cmd.exitCode() == 0;
|
|
}
|
|
|
|
qint64 linuxswap::readUsedCapacity(const QString& deviceNode) const
|
|
{
|
|
QFile swapsFile(QStringLiteral("/proc/swaps"));
|
|
|
|
if (swapsFile.open(QIODevice::ReadOnly)) {
|
|
QByteArray data = swapsFile.readAll();
|
|
swapsFile.close();
|
|
QTextStream in(&data);
|
|
while (!in.atEnd()) {
|
|
QStringList line = in.readLine().split(QRegularExpression(QStringLiteral("\\s+")));
|
|
QFileInfo kernelPath(deviceNode);
|
|
if (line[0] == kernelPath.canonicalFilePath())
|
|
return line[3].toLongLong() * 1024;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
}
|