131 lines
5.2 KiB
C++
131 lines
5.2 KiB
C++
/*************************************************************************
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* Copyright (C) 2008 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/reiser4.h"
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#include "util/capacity.h"
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#include "util/externalcommand.h"
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#include <QRegularExpression>
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#include <QStringList>
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namespace FS
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{
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FileSystem::CommandSupportType reiser4::m_GetUsed = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType reiser4::m_GetLabel = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType reiser4::m_Create = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType reiser4::m_Move = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType reiser4::m_Check = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType reiser4::m_Copy = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType reiser4::m_Backup = FileSystem::cmdSupportNone;
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reiser4::reiser4(qint64 firstsector, qint64 lastsector, qint64 sectorsused, const QString& label) :
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FileSystem(firstsector, lastsector, sectorsused, label, FileSystem::Type::Reiser4)
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{
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}
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void reiser4::init()
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{
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m_GetLabel = cmdSupportCore;
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m_GetUsed = findExternal(QStringLiteral("debugfs.reiser4"), {}, 16) ? cmdSupportFileSystem : cmdSupportNone;
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m_Create = findExternal(QStringLiteral("mkfs.reiser4"), {}, 16) ? cmdSupportFileSystem : cmdSupportNone;
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m_Check = findExternal(QStringLiteral("fsck.reiser4"), {}, 16) ? cmdSupportFileSystem : cmdSupportNone;
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m_Move = m_Copy = (m_Check != cmdSupportNone) ? cmdSupportCore : cmdSupportNone;
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m_Backup = cmdSupportCore;
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}
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bool reiser4::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 reiser4::supportToolName() const
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{
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return SupportTool(QStringLiteral("reiser4progs"), QUrl(QStringLiteral("http://www.kernel.org/pub/linux/utils/fs/reiser4/reiser4progs/")));
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}
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qint64 reiser4::maxCapacity() const
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{
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// looks like it's actually unknown. see
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// http://en.wikipedia.org/wiki/Comparison_of_file_systems
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return Capacity::unitFactor(Capacity::Byte, Capacity::EiB);
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}
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int reiser4::maxLabelLength() const
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{
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return 16;
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}
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qint64 reiser4::readUsedCapacity(const QString& deviceNode) const
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{
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ExternalCommand cmd(QStringLiteral("debugfs.reiser4"), { deviceNode });
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if (cmd.run(-1) && cmd.exitCode() == 16) {
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qint64 blocks = -1;
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QRegularExpression re(QStringLiteral("blocks:\\s+(\\d+)"));
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QRegularExpressionMatch reBlocks = re.match(cmd.output());
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if (reBlocks.hasMatch())
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blocks = reBlocks.captured(1).toLongLong();
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qint64 blockSize = -1;
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re.setPattern(QStringLiteral("blksize:\\s+(\\d+)"));
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QRegularExpressionMatch reBlockSize = re.match(cmd.output());
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if (reBlockSize.hasMatch())
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blockSize = reBlockSize.captured(1).toLongLong();
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qint64 freeBlocks = -1;
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re.setPattern(QStringLiteral("free blocks:\\s+(\\d+)"));
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QRegularExpressionMatch reFreeBlocks = re.match(cmd.output());
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if (reFreeBlocks.hasMatch())
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freeBlocks = reFreeBlocks.captured(1).toLongLong();
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if (blocks > - 1 && blockSize > -1 && freeBlocks > -1)
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return (blocks - freeBlocks) * blockSize;
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}
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return -1;
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}
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bool reiser4::check(Report& report, const QString& deviceNode) const
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{
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ExternalCommand cmd(report, QStringLiteral("fsck.reiser4"), { QStringLiteral("--yes"), QStringLiteral("--fix"), deviceNode });
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return cmd.run(-1) && cmd.exitCode() == 0;
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}
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bool reiser4::create(Report& report, const QString& deviceNode)
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{
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ExternalCommand cmd(report, QStringLiteral("mkfs.reiser4"), { QStringLiteral("--yes"), QStringLiteral("--force"), deviceNode });
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return cmd.run(-1) && cmd.exitCode() == 0;
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}
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}
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