partitionmanager/src/fs/lvm2_pv.cpp

115 lines
4.7 KiB
C++

/***************************************************************************
* Copyright (C) 2012 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/lvm2_pv.h"
#include "util/externalcommand.h"
#include "util/capacity.h"
#include <QString>
namespace FS
{
FileSystem::CommandSupportType lvm2_pv::m_GetUsed = FileSystem::cmdSupportNone;
FileSystem::CommandSupportType lvm2_pv::m_GetLabel = FileSystem::cmdSupportNone;
FileSystem::CommandSupportType lvm2_pv::m_Create = FileSystem::cmdSupportNone;
FileSystem::CommandSupportType lvm2_pv::m_Grow = FileSystem::cmdSupportNone;
FileSystem::CommandSupportType lvm2_pv::m_Shrink = FileSystem::cmdSupportNone;
FileSystem::CommandSupportType lvm2_pv::m_Move = FileSystem::cmdSupportNone;
FileSystem::CommandSupportType lvm2_pv::m_Check = FileSystem::cmdSupportNone;
FileSystem::CommandSupportType lvm2_pv::m_Copy = FileSystem::cmdSupportNone;
FileSystem::CommandSupportType lvm2_pv::m_Backup = FileSystem::cmdSupportNone;
FileSystem::CommandSupportType lvm2_pv::m_SetLabel = FileSystem::cmdSupportNone;
FileSystem::CommandSupportType lvm2_pv::m_UpdateUUID = FileSystem::cmdSupportNone;
FileSystem::CommandSupportType lvm2_pv::m_GetUUID = FileSystem::cmdSupportNone;
lvm2_pv::lvm2_pv(qint64 firstsector, qint64 lastsector, qint64 sectorsused, const QString& label) :
FileSystem(firstsector, lastsector, sectorsused, label, FileSystem::Lvm2_PV)
{
}
void lvm2_pv::init()
{
m_Create = findExternal("lvm") ? cmdSupportFileSystem : cmdSupportNone;
m_Check = findExternal("lvm") ? cmdSupportFileSystem : cmdSupportNone;
m_GetLabel = cmdSupportCore;
m_UpdateUUID = findExternal("lvm") ? cmdSupportFileSystem : cmdSupportNone;
m_Copy = cmdSupportNone; // Copying PV can confuse LVM
m_Move = (m_Check != cmdSupportNone) ? cmdSupportCore : cmdSupportNone;
m_GetLabel = cmdSupportNone;
m_Backup = cmdSupportCore;
m_GetUUID = cmdSupportCore;
}
bool lvm2_pv::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 lvm2_pv::supportToolName() const
{
return SupportTool("lvm2", QUrl("http://sourceware.org/lvm2/"));
}
qint64 lvm2_pv::maxCapacity() const
{
return Capacity::unitFactor(Capacity::Byte, Capacity::EiB);
}
bool lvm2_pv::check(Report& report, const QString& deviceNode) const
{
ExternalCommand cmd(report, "lvm", QStringList() << "pvck" << "-v" << deviceNode);
return cmd.run(-1) && cmd.exitCode() == 0;
}
bool lvm2_pv::create(Report& report, const QString& deviceNode) const
{
ExternalCommand cmd(report, "lvm", QStringList() << "pvcreate" << deviceNode);
return cmd.run(-1) && cmd.exitCode() == 0;
}
bool lvm2_pv::remove(Report& report, const QString& deviceNode) const
{
// TODO: check if PV is a member of an exported VG
ExternalCommand cmd(report, "lvm", QStringList() << "pvremove" << "-ffy" << deviceNode);
return cmd.run(-1) && cmd.exitCode() == 0;
}
bool lvm2_pv::updateUUID(Report& report, const QString& deviceNode) const
{
ExternalCommand cmd(report, "lvm", QStringList() << "pvchange" << "-u" << deviceNode);
return cmd.run(-1) && cmd.exitCode() == 0;
}
}