137 lines
5.6 KiB
C++
137 lines
5.6 KiB
C++
/***************************************************************************
|
|
* Copyright (C) 2008 by Volker Lanz <vl@fidra.de> *
|
|
* *
|
|
* This program is free software; you can redistribute it and/or modify *
|
|
* it under the terms of the GNU General Public License as published by *
|
|
* the Free Software Foundation; either version 2 of the License, or *
|
|
* (at your option) any later version. *
|
|
* *
|
|
* This program is distributed in the hope that it will be useful, *
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
|
|
* GNU General Public License for more details. *
|
|
* *
|
|
* You should have received a copy of the GNU General Public License *
|
|
* along with this program; if not, write to the *
|
|
* Free Software Foundation, Inc., *
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
|
|
***************************************************************************/
|
|
|
|
#include "fs/ext2.h"
|
|
|
|
#include "util/externalcommand.h"
|
|
#include "util/capacity.h"
|
|
|
|
#include <QString>
|
|
#include <QRegExp>
|
|
|
|
namespace FS
|
|
{
|
|
FileSystem::SupportType ext2::m_GetUsed = FileSystem::SupportNone;
|
|
FileSystem::SupportType ext2::m_GetLabel = FileSystem::SupportNone;
|
|
FileSystem::SupportType ext2::m_Create = FileSystem::SupportNone;
|
|
FileSystem::SupportType ext2::m_Grow = FileSystem::SupportNone;
|
|
FileSystem::SupportType ext2::m_Shrink = FileSystem::SupportNone;
|
|
FileSystem::SupportType ext2::m_Move = FileSystem::SupportNone;
|
|
FileSystem::SupportType ext2::m_Check = FileSystem::SupportNone;
|
|
FileSystem::SupportType ext2::m_Copy = FileSystem::SupportNone;
|
|
FileSystem::SupportType ext2::m_Backup = FileSystem::SupportNone;
|
|
FileSystem::SupportType ext2::m_SetLabel = FileSystem::SupportNone;
|
|
FileSystem::SupportType ext2::m_UpdateUUID = FileSystem::SupportNone;
|
|
|
|
ext2::ext2(qint64 firstsector, qint64 lastsector, qint64 sectorsused, const QString& label, FileSystem::Type t) :
|
|
FileSystem(firstsector, lastsector, sectorsused, label, t)
|
|
{
|
|
}
|
|
|
|
void ext2::init()
|
|
{
|
|
m_GetUsed = findExternal("dumpe2fs") ? SupportExternal : SupportNone;
|
|
m_SetLabel = m_GetLabel = findExternal("e2label") ? SupportExternal : SupportNone;
|
|
m_Create = findExternal("mkfs.ext2") ? SupportExternal : SupportNone;
|
|
m_Check = findExternal("e2fsck", QStringList() << "-V") ? SupportExternal : SupportNone;
|
|
m_UpdateUUID = findExternal("tune2fs") ? SupportExternal : SupportNone;
|
|
m_Grow = (m_Check != SupportNone && findExternal("resize2fs")) ? SupportExternal : SupportNone;
|
|
m_Shrink = m_GetUsed != SupportNone ? SupportExternal : SupportNone;
|
|
m_Copy = (m_Check != SupportNone) ? SupportInternal : SupportNone;
|
|
m_Move = (m_Check != SupportNone) ? SupportInternal : SupportNone;
|
|
m_Backup = SupportInternal;
|
|
}
|
|
|
|
qint64 ext2::maxCapacity() const
|
|
{
|
|
return Capacity::unitFactor(Capacity::Byte, Capacity::EiB);
|
|
}
|
|
|
|
qint64 ext2::readUsedCapacity(const QString& deviceNode) const
|
|
{
|
|
ExternalCommand cmd("dumpe2fs", QStringList() << "-h" << deviceNode);
|
|
|
|
if (cmd.run())
|
|
{
|
|
qint64 blockCount = -1;
|
|
QRegExp rxBlockCount("Block count:\\s*(\\d+)");
|
|
|
|
if (rxBlockCount.indexIn(cmd.output()) != -1)
|
|
blockCount = rxBlockCount.cap(1).toLongLong();
|
|
|
|
qint64 reservedBlocks = -1;
|
|
QRegExp rxReservedBlocks("Reserved block count:\\s*(\\d+)");
|
|
|
|
if (rxReservedBlocks.indexIn(cmd.output()) != -1)
|
|
reservedBlocks = rxReservedBlocks.cap(1).toLongLong();
|
|
|
|
qint64 numFreeBlocks = -1;
|
|
QRegExp rxFreeBlocks("Free blocks:\\s*(\\d+)");
|
|
|
|
if (rxFreeBlocks.indexIn(cmd.output()) != -1)
|
|
numFreeBlocks = rxFreeBlocks.cap(1).toLongLong();
|
|
|
|
qint64 blockSize = -1;
|
|
QRegExp rxBlockSize("Block size:\\s*(\\d+)");
|
|
|
|
if (rxBlockSize.indexIn(cmd.output()) != -1)
|
|
blockSize = rxBlockSize.cap(1).toLongLong();
|
|
|
|
if (blockCount > -1 && reservedBlocks > -1 && numFreeBlocks > -1 && blockSize > -1)
|
|
return (blockCount - reservedBlocks - numFreeBlocks) * blockSize;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
QString ext2::readLabel(const QString& deviceNode) const
|
|
{
|
|
ExternalCommand cmd("e2label", QStringList() << deviceNode);
|
|
return cmd.run() ? cmd.output().simplified() : QString();
|
|
}
|
|
|
|
bool ext2::check(Report& report, const QString& deviceNode) const
|
|
{
|
|
ExternalCommand cmd(report, "e2fsck", QStringList() << "-f" << "-y" << "-v" << deviceNode);
|
|
return cmd.run(-1) && (cmd.exitCode() == 0 || cmd.exitCode() == 1 || cmd.exitCode() == 2 || cmd.exitCode() == 256);
|
|
}
|
|
|
|
bool ext2::create(Report& report, const QString& deviceNode) const
|
|
{
|
|
return ExternalCommand(report, "mkfs.ext2", QStringList() << deviceNode).run(-1);
|
|
}
|
|
|
|
bool ext2::resize(Report& report, const QString& deviceNode, qint64 length) const
|
|
{
|
|
const QString len = QString::number(length / 512) + 's';
|
|
ExternalCommand cmd(report, "resize2fs", QStringList() << deviceNode << len);
|
|
return cmd.run(-1) && cmd.exitCode() == 0;
|
|
}
|
|
|
|
bool ext2::writeLabel(Report& report, const QString& deviceNode, const QString& newLabel)
|
|
{
|
|
return ExternalCommand(report, "e2label", QStringList() << deviceNode << newLabel).run(-1);
|
|
}
|
|
|
|
bool ext2::updateUUID(Report& report, const QString& deviceNode) const
|
|
{
|
|
return ExternalCommand(report, "tune2fs", QStringList() << "-U" << "random" << deviceNode).run(-1);
|
|
}
|
|
}
|