192 lines
7.3 KiB
C++
192 lines
7.3 KiB
C++
/*
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SPDX-FileCopyrightText: 2008-2010 Volker Lanz <vl@fidra.de>
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SPDX-FileCopyrightText: 2013-2018 Andrius Štikonas <andrius@stikonas.eu>
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SPDX-FileCopyrightText: 2020 Arnaud Ferraris <arnaud.ferraris@collabora.com>
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SPDX-FileCopyrightText: 2020 Gaël PORTAY <gael.portay@collabora.com>
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SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#include "fs/jfs.h"
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#include "util/externalcommand.h"
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#include "util/report.h"
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#include "util/capacity.h"
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#include <QRegularExpression>
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#include <QStringList>
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#include <QTemporaryDir>
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#include <KLocalizedString>
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namespace FS
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{
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FileSystem::CommandSupportType jfs::m_GetUsed = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType jfs::m_GetLabel = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType jfs::m_Create = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType jfs::m_Grow = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType jfs::m_Move = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType jfs::m_Check = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType jfs::m_Copy = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType jfs::m_Backup = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType jfs::m_SetLabel = FileSystem::cmdSupportNone;
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jfs::jfs(qint64 firstsector, qint64 lastsector, qint64 sectorsused, const QString& label, const QVariantMap& features) :
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FileSystem(firstsector, lastsector, sectorsused, label, features, FileSystem::Type::Jfs)
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{
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}
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void jfs::init()
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{
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m_GetUsed = findExternal(QStringLiteral("jfs_debugfs")) ? cmdSupportFileSystem : cmdSupportNone;
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m_GetLabel = cmdSupportCore;
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m_SetLabel = findExternal(QStringLiteral("jfs_tune"), { QStringLiteral("-V") }) ? cmdSupportFileSystem : cmdSupportNone;
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m_Create = findExternal(QStringLiteral("mkfs.jfs"),{ QStringLiteral("-V") }) ? cmdSupportFileSystem : cmdSupportNone;
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m_Grow = m_Check = findExternal(QStringLiteral("fsck.jfs"), { QStringLiteral("-V") }) ? cmdSupportFileSystem : cmdSupportNone;
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m_Copy = m_Move = (m_Check != cmdSupportNone) ? cmdSupportCore : cmdSupportNone;
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m_Backup = cmdSupportCore;
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}
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bool jfs::supportToolFound() const
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{
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return
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m_GetUsed != cmdSupportNone &&
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m_GetLabel != cmdSupportNone &&
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m_SetLabel != cmdSupportNone &&
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m_Create != cmdSupportNone &&
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m_Check != cmdSupportNone &&
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// m_UpdateUUID != cmdSupportNone &&
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m_Grow != cmdSupportNone &&
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// m_Shrink != cmdSupportNone &&
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m_Copy != cmdSupportNone &&
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m_Move != cmdSupportNone &&
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m_Backup != cmdSupportNone;
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// m_GetUUID != cmdSupportNone;
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}
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FileSystem::SupportTool jfs::supportToolName() const
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{
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return SupportTool(QStringLiteral("jfsutils"), QUrl(QStringLiteral("http://jfs.sourceforge.net/")));
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}
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qint64 jfs::minCapacity() const
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{
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return 16 * Capacity::unitFactor(Capacity::Unit::Byte, Capacity::Unit::MiB);
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}
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qint64 jfs::maxCapacity() const
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{
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return 16 * Capacity::unitFactor(Capacity::Unit::Byte, Capacity::Unit::TiB);
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}
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int jfs::maxLabelLength() const
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{
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return 11;
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}
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qint64 jfs::readUsedCapacity(const QString& deviceNode) const
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{
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ExternalCommand cmd(QStringLiteral("jfs_debugfs"), QStringList() << deviceNode);
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if (cmd.write(QByteArrayLiteral("dm")) && cmd.start()) {
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qint64 blockSize = -1;
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QRegularExpression re(QStringLiteral("Block Size: (\\d+)"));
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QRegularExpressionMatch reBlockSize = re.match(cmd.output());
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if (reBlockSize.hasMatch())
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blockSize = reBlockSize.captured(1).toLongLong();
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qint64 nBlocks = -1;
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re.setPattern(QStringLiteral("dn_mapsize:\\s+0x(\\x+)"));
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QRegularExpressionMatch renBlocks = re.match(cmd.output());
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bool ok = false;
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if (renBlocks.hasMatch()) {
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nBlocks = renBlocks.captured(1).toLongLong(&ok, 16);
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if (!ok)
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nBlocks = -1;
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}
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qint64 nFree = -1;
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re.setPattern(QStringLiteral("dn_nfree:\\s+0x(\\x+)"));
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QRegularExpressionMatch renFree = re.match(cmd.output());
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if (renFree.hasMatch()) {
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nFree = renFree.captured(1).toLongLong(&ok, 16);
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if (!ok)
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nFree = -1;
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}
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if (nBlocks > -1 && blockSize > -1 && nFree > -1)
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return (nBlocks - nFree) * blockSize;
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}
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return -1;
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}
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bool jfs::writeLabel(Report& report, const QString& deviceNode, const QString& newLabel)
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{
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ExternalCommand cmd(report, QStringLiteral("jfs_tune"), { QStringLiteral("-L"), newLabel, deviceNode });
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return cmd.run(-1) && cmd.exitCode() == 0;
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}
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bool jfs::writeLabelOnline(Report& report, const QString& deviceNode, const QString& mountPoint, const QString& newLabel)
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{
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Q_UNUSED(mountPoint)
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return writeLabel(report, deviceNode, newLabel);
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}
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bool jfs::check(Report& report, const QString& deviceNode) const
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{
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ExternalCommand cmd(report, QStringLiteral("fsck.jfs"), { QStringLiteral("-f"), deviceNode });
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return cmd.run(-1) && (cmd.exitCode() == 0 || cmd.exitCode() == 1);
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}
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bool jfs::create(Report& report, const QString& deviceNode)
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{
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ExternalCommand cmd(report, QStringLiteral("mkfs.jfs"), { QStringLiteral("-q"), deviceNode });
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return cmd.run(-1) && cmd.exitCode() == 0;
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}
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bool jfs::resize(Report& report, const QString& deviceNode, qint64) const
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{
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QTemporaryDir tempDir;
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if (!tempDir.isValid()) {
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report.line() << xi18nc("@info:progress", "Resizing JFS file system on partition <filename>%1</filename> failed: Could not create temp dir.", deviceNode);
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return false;
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}
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bool rval = false;
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ExternalCommand mountCmd(report, QStringLiteral("mount"), { QStringLiteral("--verbose"), QStringLiteral("--type"), QStringLiteral("jfs"), deviceNode, tempDir.path() });
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if (mountCmd.run(-1)) {
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ExternalCommand resizeMountCmd(report, QStringLiteral("mount"), { QStringLiteral("--verbose"), QStringLiteral("--type"), QStringLiteral("jfs"), QStringLiteral("--options"), QStringLiteral("remount,resize"), deviceNode, tempDir.path() });
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if (resizeMountCmd.run(-1) && resizeMountCmd.exitCode() == 0)
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rval = true;
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else
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report.line() << xi18nc("@info:progress", "Resizing JFS file system on partition <filename>%1</filename> failed: Remount failed.", deviceNode);
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ExternalCommand unmountCmd(report, QStringLiteral("umount"), { tempDir.path() });
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if (!unmountCmd.run(-1))
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report.line() << xi18nc("@info:progress", "<warning>Resizing JFS file system on partition <filename>%1</filename>: Unmount failed.</warning>", deviceNode);
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} else
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report.line() << xi18nc("@info:progress", "Resizing JFS file system on partition <filename>%1</filename> failed: Initial mount failed.", deviceNode);
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return rval;
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}
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bool jfs::resizeOnline(Report& report, const QString& deviceNode, const QString& mountPoint, qint64) const
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{
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ExternalCommand resizeMountCmd(report, QStringLiteral("mount"), { QStringLiteral("--verbose"), QStringLiteral("--type"), QStringLiteral("jfs"), QStringLiteral("--options"), QStringLiteral("remount,resize"), deviceNode, mountPoint });
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if (resizeMountCmd.run(-1) && resizeMountCmd.exitCode() == 0)
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return true;
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report.line() << xi18nc("@info:progress", "Resizing JFS file system on partition <filename>%1</filename> failed: Remount failed.", deviceNode);
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return false;
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}
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}
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