kpmcore/src/fs/zfs.cpp

103 lines
4.2 KiB
C++

/*************************************************************************
* Copyright (C) 2010 by Volker Lanz <vl@fidra.de> *
* Copyright (C) 2016 by Andrius Štikonas <andrius@stikonas.eu> *
* *
* 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 3 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, see <http://www.gnu.org/licenses/>.*
*************************************************************************/
#include "fs/zfs.h"
#include "util/externalcommand.h"
#include "util/capacity.h"
#include "util/report.h"
#include <QString>
namespace FS
{
FileSystem::CommandSupportType zfs::m_GetUsed = FileSystem::cmdSupportNone;
FileSystem::CommandSupportType zfs::m_GetLabel = FileSystem::cmdSupportNone;
FileSystem::CommandSupportType zfs::m_Create = FileSystem::cmdSupportNone;
FileSystem::CommandSupportType zfs::m_Grow = FileSystem::cmdSupportNone;
FileSystem::CommandSupportType zfs::m_Shrink = FileSystem::cmdSupportNone;
FileSystem::CommandSupportType zfs::m_Move = FileSystem::cmdSupportNone;
FileSystem::CommandSupportType zfs::m_Check = FileSystem::cmdSupportNone;
FileSystem::CommandSupportType zfs::m_Copy = FileSystem::cmdSupportNone;
FileSystem::CommandSupportType zfs::m_Backup = FileSystem::cmdSupportNone;
FileSystem::CommandSupportType zfs::m_SetLabel = FileSystem::cmdSupportNone;
FileSystem::CommandSupportType zfs::m_UpdateUUID = FileSystem::cmdSupportNone;
FileSystem::CommandSupportType zfs::m_GetUUID = FileSystem::cmdSupportNone;
zfs::zfs(qint64 firstsector, qint64 lastsector, qint64 sectorsused, const QString& label) :
FileSystem(firstsector, lastsector, sectorsused, label, FileSystem::Zfs)
{
}
void zfs::init()
{
m_SetLabel = findExternal(QStringLiteral("zpool"), {}, 2) ? cmdSupportFileSystem : cmdSupportNone;
m_GetLabel = cmdSupportCore;
m_Backup = cmdSupportCore;
m_GetUUID = cmdSupportCore;
}
bool zfs::supportToolFound() const
{
return
// m_GetUsed != cmdSupportNone &&
m_GetLabel != cmdSupportNone &&
m_SetLabel != cmdSupportNone &&
// m_Create != cmdSupportNone &&
// m_Check != cmdSupportNone &&
// m_UpdateUUID != cmdSupportNone &&
// m_Grow != cmdSupportNone &&
// m_Shrink != cmdSupportNone &&
// m_Copy != cmdSupportNone &&
// m_Move != cmdSupportNone &&
m_Backup != cmdSupportNone &&
m_GetUUID != cmdSupportNone;
}
FileSystem::SupportTool zfs::supportToolName() const
{
return SupportTool(QStringLiteral("zfs"), QUrl(QStringLiteral("http://zfsonlinux.org/")));
}
qint64 zfs::minCapacity() const
{
return 64 * Capacity::unitFactor(Capacity::Byte, Capacity::MiB);
}
qint64 zfs::maxCapacity() const
{
return Capacity::unitFactor(Capacity::Byte, Capacity::EiB);
}
bool zfs::remove(Report& report, const QString& deviceNode) const
{
Q_UNUSED(deviceNode)
ExternalCommand cmd(report, QStringLiteral("zpool"), { QStringLiteral("destroy"), QStringLiteral("-f"), label() });
return cmd.run(-1) && cmd.exitCode() == 0;
}
bool zfs::writeLabel(Report& report, const QString& deviceNode, const QString& newLabel)
{
Q_UNUSED(deviceNode)
ExternalCommand cmd1(report, QStringLiteral("zpool"), { QStringLiteral("export"), label() });
ExternalCommand cmd2(report, QStringLiteral("zpool"), { QStringLiteral("import"), label(), newLabel });
return cmd1.run(-1) && cmd1.exitCode() == 0 && cmd2.run(-1) && cmd2.exitCode() == 0;
}
}