182 lines
7.2 KiB
C++
182 lines
7.2 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 *
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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/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 <QStringList>
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#include <QRegExp>
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#include <QTemporaryDir>
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#include <KLocalizedString>
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#include <unistd.h>
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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) :
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FileSystem(firstsector, lastsector, sectorsused, label, FileSystem::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"), QStringList() << QStringLiteral("-V")) ? cmdSupportFileSystem : cmdSupportNone;
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m_Create = findExternal(QStringLiteral("mkfs.jfs"), QStringList() << QStringLiteral("-V")) ? cmdSupportFileSystem : cmdSupportNone;
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m_Grow = m_Check = findExternal(QStringLiteral("fsck.jfs"), QStringList() << 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::Byte, Capacity::MiB);
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}
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qint64 jfs::maxCapacity() const
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{
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return 32 * Capacity::unitFactor(Capacity::Byte, Capacity::PiB);
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}
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qint64 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.start() && cmd.write("dm") == 2 && cmd.waitFor()) {
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qint64 blockSize = -1;
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QRegExp rxBlockSize(QStringLiteral("Block Size: (\\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 nBlocks = -1;
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QRegExp rxnBlocks(QStringLiteral("dn_mapsize:\\s+0x([0-9a-f]+)"));
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bool ok = false;
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if (rxnBlocks.indexIn(cmd.output()) != -1) {
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nBlocks = rxnBlocks.cap(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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QRegExp rxnFree(QStringLiteral("dn_nfree:\\s+0x([0-9a-f]+)"));
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if (rxnFree.indexIn(cmd.output()) != -1) {
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nFree = rxnFree.cap(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"), 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 jfs::check(Report& report, const QString& deviceNode) const
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{
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ExternalCommand cmd(report, QStringLiteral("fsck.jfs"), QStringList() << 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) const
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{
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ExternalCommand cmd(report, QStringLiteral("mkfs.jfs"), QStringList() << 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/plain", "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"), QStringList() << QStringLiteral("-v") << QStringLiteral("-t") << QStringLiteral("jfs") << deviceNode << tempDir.path());
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if (mountCmd.run(-1)) {
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ExternalCommand resizeMountCmd(report, QStringLiteral("mount"), QStringList() << QStringLiteral("-v") << QStringLiteral("-t") << QStringLiteral("jfs") << QStringLiteral("-o") << QStringLiteral("remount,resize") << deviceNode << tempDir.path());
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if (resizeMountCmd.run(-1))
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rval = true;
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else
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report.line() << xi18nc("@info/plain", "Resizing JFS file system on partition <filename>%1</filename> failed: Remount failed.", deviceNode);
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ExternalCommand unmountCmd(report, QStringLiteral("umount"), QStringList() << tempDir.path());
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if (!unmountCmd.run(-1))
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report.line() << xi18nc("@info/plain", "Warning: Resizing JFS 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 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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}
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