181 lines
7.8 KiB
C++
181 lines
7.8 KiB
C++
/*************************************************************************
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* Copyright (C) 2012 by Volker Lanz <vl@fidra.de> *
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* Copyright (C) 2016 by Andrius Štikonas <andrius@stikonas.eu> *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License as *
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* published by the Free Software Foundation; either version 3 of *
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* the License, or (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, see <http://www.gnu.org/licenses/>.*
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*************************************************************************/
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#include "fs/nilfs2.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 <cmath>
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#include <QString>
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#include <QTemporaryDir>
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#include <QUuid>
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#include <KLocalizedString>
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namespace FS
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{
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FileSystem::CommandSupportType nilfs2::m_GetUsed = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType nilfs2::m_GetLabel = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType nilfs2::m_Create = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType nilfs2::m_Grow = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType nilfs2::m_Shrink = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType nilfs2::m_Move = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType nilfs2::m_Check = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType nilfs2::m_Copy = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType nilfs2::m_Backup = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType nilfs2::m_SetLabel = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType nilfs2::m_UpdateUUID = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType nilfs2::m_GetUUID = FileSystem::cmdSupportNone;
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nilfs2::nilfs2(qint64 firstsector, qint64 lastsector, qint64 sectorsused, const QString& label) :
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FileSystem(firstsector, lastsector, sectorsused, label, FileSystem::Nilfs2)
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{
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}
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void nilfs2::init()
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{
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m_Create = findExternal(QStringLiteral("mkfs.nilfs2")) ? cmdSupportFileSystem : cmdSupportNone;
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m_Check = findExternal(QStringLiteral("fsck.nilfs2")) ? cmdSupportFileSystem : cmdSupportNone;
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m_GetLabel = cmdSupportCore;
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m_SetLabel = findExternal(QStringLiteral("nilfs-tune")) ? cmdSupportFileSystem : cmdSupportNone;
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m_UpdateUUID = findExternal(QStringLiteral("nilfs-tune")) ? cmdSupportFileSystem : cmdSupportNone;
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m_Grow = (m_Check != cmdSupportNone && findExternal(QStringLiteral("nilfs-resize"))) ? cmdSupportFileSystem : cmdSupportNone;
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m_GetUsed = findExternal(QStringLiteral("nilfs-tune")) ? cmdSupportFileSystem : cmdSupportNone;
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m_Shrink = (m_Grow != cmdSupportNone && m_GetUsed != cmdSupportNone) ? cmdSupportFileSystem : cmdSupportNone;
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m_Copy = (m_Check != cmdSupportNone) ? cmdSupportCore : cmdSupportNone;
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m_Move = (m_Check != cmdSupportNone) ? cmdSupportCore : cmdSupportNone;
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m_GetLabel = cmdSupportCore;
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m_Backup = cmdSupportCore;
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m_GetUUID = cmdSupportCore;
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}
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bool nilfs2::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 nilfs2::supportToolName() const
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{
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return SupportTool(QStringLiteral("nilfs2-utils"), QUrl(QStringLiteral("http://code.google.com/p/nilfs2/")));
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}
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qint64 nilfs2::minCapacity() const
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{
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return 128 * Capacity::unitFactor(Capacity::Byte, Capacity::MiB);
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}
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qint64 nilfs2::maxCapacity() const
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{
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return Capacity::unitFactor(Capacity::Byte, Capacity::EiB);
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}
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qint64 nilfs2::maxLabelLength() const
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{
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return 80;
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}
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bool nilfs2::check(Report& report, const QString& deviceNode) const
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{
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ExternalCommand cmd(report, QStringLiteral("fsck.nilfs2"), QStringList() << deviceNode);
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return cmd.run(-1) && cmd.exitCode() == 0;
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}
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bool nilfs2::create(Report& report, const QString& deviceNode) const
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{
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ExternalCommand cmd(report, QStringLiteral("mkfs.nilfs2"), QStringList() << deviceNode);
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return cmd.run(-1) && cmd.exitCode() == 0;
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}
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qint64 nilfs2::readUsedCapacity(const QString& deviceNode) const
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{
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ExternalCommand cmd(QStringLiteral("nilfs-tune"), QStringList() << QStringLiteral("-l") << deviceNode);
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if (cmd.run()) {
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QRegExp rxBlockSize(QStringLiteral("(?:Block size:\\s+)(\\d+)"));
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QRegExp rxDeviceSize(QStringLiteral("(?:Device size:\\s+)(\\d+)"));
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QRegExp rxFreeBlocks(QStringLiteral("(?:Free blocks count:\\s+)(\\d+)"));
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if (rxBlockSize.indexIn(cmd.output()) != -1 && rxDeviceSize.indexIn(cmd.output()) != -1 && rxFreeBlocks.indexIn(cmd.output()) != -1)
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return rxDeviceSize.cap(1).toLongLong() - rxBlockSize.cap(1).toLongLong() * rxFreeBlocks.cap(1).toLongLong();
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}
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return -1;
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}
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bool nilfs2::resize(Report& report, const QString& deviceNode, qint64 length) 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/plain", "Resizing NILFS2 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"), QStringList() << QStringLiteral("-v") << QStringLiteral("-t") << QStringLiteral("nilfs2") << deviceNode << tempDir.path());
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if (mountCmd.run(-1) && mountCmd.exitCode() == 0) {
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ExternalCommand resizeCmd(report, QStringLiteral("nilfs-resize"), QStringList() << QStringLiteral("-v") << QStringLiteral("-y") << deviceNode << QString::number(length));
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if (resizeCmd.run(-1) && resizeCmd.exitCode() == 0)
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rval = true;
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else
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report.line() << xi18nc("@info/plain", "Resizing NILFS2 file system on partition <filename>%1</filename> failed: NILFS2 file system resize failed.", deviceNode);
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ExternalCommand unmountCmd(report, QStringLiteral("umount"), QStringList() << tempDir.path());
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if (!unmountCmd.run(-1) && unmountCmd.exitCode() == 0)
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report.line() << xi18nc("@info/plain", "Warning: Resizing NILFS2 file system on partition <filename>%1</filename>: Unmount failed.", deviceNode);
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} else
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report.line() << xi18nc("@info/plain", "Resizing NILFS2 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 nilfs2::writeLabel(Report& report, const QString& deviceNode, const QString& newLabel)
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{
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ExternalCommand cmd(report, QStringLiteral("nilfs-tune"), QStringList() << QStringLiteral("-l") << newLabel << deviceNode);
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return cmd.run(-1) && cmd.exitCode() == 0;
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}
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bool nilfs2::updateUUID(Report& report, const QString& deviceNode) const
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{
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QUuid uuid = QUuid::createUuid();
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ExternalCommand cmd(report, QStringLiteral("nilfs-tune"), QStringList() << QStringLiteral("-U") << uuid.toString() << deviceNode);
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return cmd.run(-1) && cmd.exitCode() == 0;
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}
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}
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