165 lines
6.0 KiB
C++
165 lines
6.0 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/ntfs.h"
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#include "util/externalcommand.h"
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#include "util/capacity.h"
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#include <QString>
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#include <QStringList>
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#include <ctime>
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#include <uuid/uuid.h>
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namespace FS
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{
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FileSystem::SupportType ntfs::m_GetUsed = FileSystem::SupportNone;
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FileSystem::SupportType ntfs::m_GetLabel = FileSystem::SupportNone;
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FileSystem::SupportType ntfs::m_Create = FileSystem::SupportNone;
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FileSystem::SupportType ntfs::m_Grow = FileSystem::SupportNone;
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FileSystem::SupportType ntfs::m_Shrink = FileSystem::SupportNone;
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FileSystem::SupportType ntfs::m_Move = FileSystem::SupportNone;
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FileSystem::SupportType ntfs::m_Check = FileSystem::SupportNone;
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FileSystem::SupportType ntfs::m_Copy = FileSystem::SupportNone;
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FileSystem::SupportType ntfs::m_Backup = FileSystem::SupportNone;
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FileSystem::SupportType ntfs::m_SetLabel = FileSystem::SupportNone;
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FileSystem::SupportType ntfs::m_UpdateUUID = FileSystem::SupportNone;
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ntfs::ntfs(qint64 firstsector, qint64 lastsector, qint64 sectorsused, const QString& label) :
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FileSystem(firstsector, lastsector, sectorsused, label, FileSystem::Ntfs)
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{
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}
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void ntfs::init()
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{
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m_Shrink = m_Grow = m_Check = m_GetUsed = findExternal("ntfsresize") ? SupportExternal : SupportNone;
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m_SetLabel = m_GetLabel = findExternal("ntfslabel") ? SupportExternal : SupportNone;
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m_Create = findExternal("mkfs.ntfs") ? SupportExternal : SupportNone;
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m_Copy = findExternal("ntfsclone") ? SupportExternal : SupportNone;
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m_Backup = SupportInternal;
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m_UpdateUUID = findExternal("dd") ? SupportExternal : SupportNone;
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m_Move = (m_Check != SupportNone) ? SupportInternal : SupportNone;
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}
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qint64 ntfs::maxCapacity() const
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{
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return 256 * Capacity::unitFactor(Capacity::Byte, Capacity::TiB);
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}
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qint64 ntfs::readUsedCapacity(const QString& deviceNode) const
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{
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ExternalCommand cmd("ntfsresize", QStringList() << "--info" << "--force" << "--no-progress-bar" << deviceNode);
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if (cmd.run())
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{
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qint64 usedBytes = -1;
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QRegExp rxUsedBytes("resize at (\\d+) bytes");
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if (rxUsedBytes.indexIn(cmd.output()) != -1)
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usedBytes = rxUsedBytes.cap(1).toLongLong();
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if (usedBytes > -1)
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return usedBytes;
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}
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return -1;
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}
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QString ntfs::readLabel(const QString& deviceNode) const
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{
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ExternalCommand cmd("ntfslabel", QStringList() << "--force" << deviceNode);
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// ntfslabel writes some warning message to stderr when the filesystem is marked as
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// dirty. we don't want that message, so ignore stderr.
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cmd.setProcessChannelMode(QProcess::SeparateChannels);
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return cmd.run() ? cmd.output().simplified() : QString();
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}
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bool ntfs::writeLabel(Report& report, const QString& deviceNode, const QString& newLabel)
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{
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ExternalCommand writeCmd(report, "ntfslabel", QStringList() << "--force" << deviceNode << newLabel.simplified());
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writeCmd.setProcessChannelMode(QProcess::SeparateChannels);
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if (!writeCmd.run(-1))
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return false;
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ExternalCommand testCmd("ntfslabel", QStringList() << "--force" << deviceNode);
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testCmd.setProcessChannelMode(QProcess::SeparateChannels);
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if (!testCmd.run(-1))
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return false;
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return testCmd.output().simplified() == newLabel.simplified();
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}
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bool ntfs::check(Report& report, const QString& deviceNode) const
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{
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ExternalCommand cmd(report, "ntfsresize", QStringList() << "-P" << "-i" << "-f" << "-v" << deviceNode);
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return cmd.run(-1) && cmd.exitCode() == 0;
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}
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bool ntfs::create(Report& report, const QString& deviceNode) const
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{
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return ExternalCommand(report, "mkfs.ntfs", QStringList() << "-f" << "-vv" << deviceNode).run(-1);
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}
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bool ntfs::copy(Report& report, const QString& targetDeviceNode, const QString& sourceDeviceNode) const
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{
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ExternalCommand cmd(report, "ntfsclone", QStringList() << "-f" << "--overwrite" << targetDeviceNode << sourceDeviceNode);
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return cmd.run(-1) && cmd.exitCode() == 0;
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}
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bool ntfs::resize(Report& report, const QString& deviceNode, qint64 length) const
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{
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QStringList args;
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args << "-P" << "-f" << deviceNode << "-s" << QString::number(length);
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QStringList dryRunArgs = args;
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dryRunArgs << "-n";
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ExternalCommand cmdDryRun("ntfsresize", dryRunArgs);
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if (cmdDryRun.run(-1) && cmdDryRun.exitCode() == 0)
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{
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ExternalCommand cmd(report, "ntfsresize", args);
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return cmd.run(-1) && cmd.exitCode() == 0;
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}
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return false;
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}
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bool ntfs::updateUUID(Report& report, const QString& deviceNode) const
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{
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char uuid[16];
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uuid_generate(reinterpret_cast<unsigned char*>(uuid));
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ExternalCommand cmd(report, "dd", QStringList() << "of=" + deviceNode << "bs=1" << "count=8" << "seek=72");
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if (!cmd.start())
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return false;
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if (cmd.write(uuid, 8) != 8)
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return false;
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return cmd.waitFor(-1);
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}
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}
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