File indexing completed on 2024-05-05 05:48:48

 /*
     SPDX-FileCopyrightText: 2008-2010 Volker Lanz <vl@fidra.de>
     SPDX-FileCopyrightText: 2012-2018 Andrius Štikonas <andrius@stikonas.eu>
     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/xfs.h"
 
 #include "util/externalcommand.h"
 #include "util/capacity.h"
 #include "util/report.h"
 
 #include <QRegularExpression>
 #include <QString>
 #include <QStringList>
 #include <QTemporaryDir>
 
 #include <KLocalizedString>
 
 namespace FS
 {
 FileSystem::CommandSupportType xfs::m_GetUsed = FileSystem::cmdSupportNone;
 FileSystem::CommandSupportType xfs::m_GetLabel = FileSystem::cmdSupportNone;
 FileSystem::CommandSupportType xfs::m_Create = FileSystem::cmdSupportNone;
 FileSystem::CommandSupportType xfs::m_Grow = FileSystem::cmdSupportNone;
 FileSystem::CommandSupportType xfs::m_Move = FileSystem::cmdSupportNone;
 FileSystem::CommandSupportType xfs::m_Check = FileSystem::cmdSupportNone;
 FileSystem::CommandSupportType xfs::m_Copy = FileSystem::cmdSupportNone;
 FileSystem::CommandSupportType xfs::m_Backup = FileSystem::cmdSupportNone;
 FileSystem::CommandSupportType xfs::m_SetLabel = FileSystem::cmdSupportNone;
 
 xfs::xfs(qint64 firstsector, qint64 lastsector, qint64 sectorsused, const QString& label, const QVariantMap& features) :
     FileSystem(firstsector, lastsector, sectorsused, label, features, FileSystem::Type::Xfs)
 {
 }
 
 void xfs::init()
 {
     m_GetLabel = cmdSupportCore;
     m_SetLabel = m_GetUsed = findExternal(QStringLiteral("xfs_db")) ? cmdSupportFileSystem : cmdSupportNone;
     m_Create = findExternal(QStringLiteral("mkfs.xfs")) ? cmdSupportFileSystem : cmdSupportNone;
 
     m_Check = findExternal(QStringLiteral("xfs_repair")) ? cmdSupportFileSystem : cmdSupportNone;
     m_Grow = (findExternal(QStringLiteral("xfs_growfs"), { QStringLiteral("-V") }) && m_Check != cmdSupportNone) ? cmdSupportFileSystem : cmdSupportNone;
     m_Copy = findExternal(QStringLiteral("xfs_copy")) ? cmdSupportFileSystem : cmdSupportNone;
     m_Move = (m_Check != cmdSupportNone) ? cmdSupportCore : cmdSupportNone;
     m_Backup = cmdSupportCore;
 }
 
 bool xfs::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 xfs::supportToolName() const
 {
     return SupportTool(QStringLiteral("xfsprogs"), QUrl(QStringLiteral("https://xfs.org/index.php/Getting_the_latest_source_code")));
 }
 
 qint64 xfs::minCapacity() const
 {
     return 32 * Capacity::unitFactor(Capacity::Unit::Byte, Capacity::Unit::MiB);
 }
 
 qint64 xfs::maxCapacity() const
 {
     return Capacity::unitFactor(Capacity::Unit::Byte, Capacity::Unit::EiB);
 }
 
 int xfs::maxLabelLength() const
 {
     return 12;
 }
 
 qint64 xfs::readUsedCapacity(const QString& deviceNode) const
 {
     ExternalCommand cmd(QStringLiteral("xfs_db"), { QStringLiteral("-c"), QStringLiteral("sb 0"), QStringLiteral("-c"), QStringLiteral("print"), deviceNode });
 
     if (cmd.run(-1) && cmd.exitCode() == 0) {
         qint64 dBlocks = -1;
         QRegularExpression re(QStringLiteral("dblocks = (\\d+)"));
         QRegularExpressionMatch reDBlocks = re.match(cmd.output());
 
         if (reDBlocks.hasMatch())
             dBlocks = reDBlocks.captured(1).toLongLong();
 
         qint64 blockSize = -1;
         re.setPattern(QStringLiteral("blocksize = (\\d+)"));
         QRegularExpressionMatch reBlockSize = re.match(cmd.output());
 
         if (reBlockSize.hasMatch())
             blockSize = reBlockSize.captured(1).toLongLong();
 
         qint64 fdBlocks = -1;
         re.setPattern(QStringLiteral("fdblocks = (\\d+)"));
         QRegularExpressionMatch reFdBlocks = re.match(cmd.output());
 
         if (reFdBlocks.hasMatch())
             fdBlocks = reFdBlocks.captured(1).toLongLong();
 
         if (dBlocks > -1 && blockSize > -1 && fdBlocks > -1)
             return (dBlocks - fdBlocks) * blockSize;
     }
 
     return -1;
 }
 
 bool xfs::writeLabel(Report& report, const QString& deviceNode, const QString& newLabel)
 {
     ExternalCommand cmd(report, QStringLiteral("xfs_db"), { QStringLiteral("-x"), QStringLiteral("-c"), QStringLiteral("sb 0"), QStringLiteral("-c"), QStringLiteral("label ") + newLabel, deviceNode });
     return cmd.run(-1) && cmd.exitCode() == 0;
 }
 
 bool xfs::check(Report& report, const QString& deviceNode) const
 {
     ExternalCommand cmd(report, QStringLiteral("xfs_repair"), { QStringLiteral("-v"), deviceNode });
     return cmd.run(-1) && cmd.exitCode() == 0;
 }
 
 bool xfs::create(Report& report, const QString& deviceNode)
 {
     ExternalCommand cmd(report, QStringLiteral("mkfs.xfs"), { QStringLiteral("-f"), deviceNode });
     return cmd.run(-1) && cmd.exitCode() == 0;
 }
 
 bool xfs::copy(Report& report, const QString& targetDeviceNode, const QString& sourceDeviceNode) const
 {
     ExternalCommand cmd(report, QStringLiteral("xfs_copy"), { sourceDeviceNode, targetDeviceNode });
 
     // xfs_copy behaves a little strangely. It apparently kills itself at the end of main, causing QProcess
     // to report that it crashed.
     // See https://marc.info/?l=linux-xfs&m=110178337825926&w=2
     // So we cannot rely on QProcess::exitStatus() and thus not on ExternalCommand::run() returning true.
 
     cmd.run(-1);
     return cmd.exitCode() == 0;
 }
 
 bool xfs::resize(Report& report, const QString& deviceNode, qint64) const
 {
     QTemporaryDir tempDir;
     if (!tempDir.isValid()) {
         report.line() << xi18nc("@info:progress", "Resizing XFS file system on partition <filename>%1</filename> failed: Could not create temp dir.", deviceNode);
         return false;
     }
 
     bool rval = false;
 
     ExternalCommand mountCmd(report, QStringLiteral("mount"), { QStringLiteral("--verbose"), QStringLiteral("--types"), QStringLiteral("xfs"), deviceNode, tempDir.path() });
 
     if (mountCmd.run(-1)) {
         ExternalCommand resizeCmd(report, QStringLiteral("xfs_growfs"), { tempDir.path() });
 
         if (resizeCmd.run(-1) && resizeCmd.exitCode() == 0)
             rval = true;
         else
             report.line() << xi18nc("@info:progress", "Resizing XFS file system on partition <filename>%1</filename> failed: xfs_growfs failed.", deviceNode);
 
         ExternalCommand unmountCmd(report, QStringLiteral("umount"), { tempDir.path() });
 
         if (!unmountCmd.run(-1))
             report.line() << xi18nc("@info:progress", "<warning>Resizing XFS file system on partition <filename>%1</filename> failed: Unmount failed.</warning>", deviceNode);
     } else
         report.line() << xi18nc("@info:progress", "Resizing XFS file system on partition <filename>%1</filename> failed: Initial mount failed.", deviceNode);
 
     return rval;
 }
 
 bool xfs::resizeOnline(Report& report, const QString& deviceNode, const QString& mountPoint, qint64) const
 {
     ExternalCommand resizeCmd(report, QStringLiteral("xfs_growfs"), { mountPoint });
 
     if (resizeCmd.run(-1) && resizeCmd.exitCode() == 0)
         return true;
 
     report.line() << xi18nc("@info:progress", "Resizing XFS file system on partition <filename>%1</filename> failed: xfs_growfs failed.", deviceNode);
     return false;
 }
 }