165 lines
6.3 KiB
C++
165 lines
6.3 KiB
C++
/***************************************************************************
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* Copyright (C) 2008 by Volker Lanz <vl@fidra.de> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (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, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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***************************************************************************/
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#include "fs/xfs.h"
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#include "util/externalcommand.h"
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#include "util/capacity.h"
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#include "util/report.h"
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#include <QString>
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#include <QStringList>
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#include <QRegExp>
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#include <ktempdir.h>
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#include <klocale.h>
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#include <unistd.h>
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namespace FS
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{
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FileSystem::CommandSupportType xfs::m_GetUsed = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType xfs::m_GetLabel = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType xfs::m_Create = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType xfs::m_Grow = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType xfs::m_Move = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType xfs::m_Check = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType xfs::m_Copy = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType xfs::m_Backup = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType xfs::m_SetLabel = FileSystem::cmdSupportNone;
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xfs::xfs(qint64 firstsector, qint64 lastsector, qint64 sectorsused, const QString& label) :
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FileSystem(firstsector, lastsector, sectorsused, label, FileSystem::Xfs)
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{
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}
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void xfs::init()
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{
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m_GetLabel = cmdSupportCore;
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m_SetLabel = m_GetUsed = findExternal("xfs_db") ? cmdSupportFileSystem : cmdSupportNone;
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m_Create = findExternal("mkfs.xfs") ? cmdSupportFileSystem : cmdSupportNone;
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m_Check = findExternal("xfs_repair") ? cmdSupportFileSystem : cmdSupportNone;
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m_Grow = (findExternal("xfs_growfs", QStringList() << "-V") && m_Check != cmdSupportNone) ? cmdSupportFileSystem : cmdSupportNone;
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m_Copy = findExternal("xfs_copy") ? cmdSupportFileSystem : cmdSupportNone;
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m_Move = (m_Check != cmdSupportNone) ? cmdSupportCore : cmdSupportNone;
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m_Backup = cmdSupportCore;
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}
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qint64 xfs::minCapacity() const
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{
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return 32 * Capacity::unitFactor(Capacity::Byte, Capacity::MiB);
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}
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qint64 xfs::readUsedCapacity(const QString& deviceNode) const
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{
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ExternalCommand cmd("xfs_db", QStringList() << "-c" << "sb 0" << "-c" << "print" << deviceNode);
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if (cmd.run())
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{
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qint64 dBlocks = -1;
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QRegExp rxDBlocks("dblocks = (\\d+)");
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if (rxDBlocks.indexIn(cmd.output()) != -1)
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dBlocks = rxDBlocks.cap(1).toLongLong();
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qint64 blockSize = -1;
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QRegExp rxBlockSize("blocksize = (\\d+)");
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if (rxBlockSize.indexIn(cmd.output()) != -1)
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blockSize = rxBlockSize.cap(1).toLongLong();
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qint64 fdBlocks = -1;
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QRegExp rxFdBlocks("fdblocks = (\\d+)");
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if (rxFdBlocks.indexIn(cmd.output()) != -1)
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fdBlocks = rxFdBlocks.cap(1).toLongLong();
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if (dBlocks > -1 && blockSize > -1 && fdBlocks > -1)
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return (dBlocks - fdBlocks) * blockSize;
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}
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return -1;
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}
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bool xfs::writeLabel(Report& report, const QString& deviceNode, const QString& newLabel)
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{
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ExternalCommand cmd(report, "xfs_db", QStringList() << "-x" << "-c" << "sb 0" << "-c" << QString("label " + newLabel) << deviceNode);
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return cmd.run(-1) && cmd.exitCode() == 0;
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}
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bool xfs::check(Report& report, const QString& deviceNode) const
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{
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ExternalCommand cmd(report, "xfs_repair", QStringList() << "-v" << deviceNode);
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return cmd.run(-1) && cmd.exitCode() == 0;
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}
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bool xfs::create(Report& report, const QString& deviceNode) const
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{
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ExternalCommand cmd(report, "mkfs.xfs", QStringList() << "-f" << deviceNode);
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return cmd.run(-1) && cmd.exitCode() == 0;
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}
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bool xfs::copy(Report& report, const QString& targetDeviceNode, const QString& sourceDeviceNode) const
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{
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ExternalCommand cmd(report, "xfs_copy", QStringList() << sourceDeviceNode << targetDeviceNode);
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// xfs_copy behaves a little strangely. It apparently kills itself at the end of main, causing QProcess
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// to report that it crashed.
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// See http://oss.sgi.com/archives/xfs/2004-11/msg00169.html
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// So we cannot rely on QProcess::exitStatus() and thus not on ExternalCommand::run() returning true.
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cmd.run(-1);
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return cmd.exitCode() == 0;
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}
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bool xfs::resize(Report& report, const QString& deviceNode, qint64) const
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{
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KTempDir tempDir;
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if (!tempDir.exists())
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{
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report.line() << i18nc("@info/plain", "Resizing XFS 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, "mount", QStringList() << "-v" << "-t" << "xfs" << deviceNode << tempDir.name());
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if (mountCmd.run(-1))
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{
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ExternalCommand resizeCmd(report, "xfs_growfs", QStringList() << tempDir.name());
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if (resizeCmd.run(-1))
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rval = true;
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else
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report.line() << i18nc("@info/plain", "Resizing XFS file system on partition <filename>%1</filename> failed: xfs_growfs failed.", deviceNode);
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ExternalCommand unmountCmd(report, "umount", QStringList() << tempDir.name());
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if (!unmountCmd.run(-1))
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report.line() << i18nc("@info/plain", "Warning: Resizing XFS file system on partition <filename>%1</filename>: Unmount failed.", deviceNode);
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}
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else
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report.line() << i18nc("@info/plain", "Resizing XFS 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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}
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