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/* === This file is part of Calamares - <https://github.com/calamares> ===
*
* Copyright 2014-2017, Teo Mrnjavac <teo@kde.org>
* Copyright 2017-2018, Adriaan de Groot <groot@kde.org>
* Copyright 2018, Collabora Ltd
*
* Calamares 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.
*
* Calamares 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 Calamares. If not, see <http://www.gnu.org/licenses/>.
*/
#include "core/PartitionLayout.h"
#include "core/KPMHelpers.h"
#include "core/PartitionActions.h"
#include "core/PartitionInfo.h"
#include <kpmcore/core/device.h>
#include <kpmcore/core/partition.h>
#include <kpmcore/fs/filesystem.h>
PartitionLayout::PartitionLayout()
{
}
PartitionLayout::PartitionLayout( PartitionLayout::PartitionEntry entry )
{
partLayout.append( entry );
}
PartitionLayout::PartitionLayout( const PartitionLayout& layout )
: partLayout( layout.partLayout )
{
}
PartitionLayout::~PartitionLayout()
{
}
void
PartitionLayout::addEntry( PartitionLayout::PartitionEntry entry )
{
partLayout.append( entry );
}
static double
parseSizeString( QString sizeString, PartitionLayout::SizeUnit *unit )
{
double value;
bool ok;
QString valueString;
QString unitString;
QRegExp rx( "[KkMmGg%]" );
int pos = rx.indexIn( sizeString );
if (pos > 0)
{
valueString = sizeString.mid( 0, pos );
unitString = sizeString.mid( pos );
}
else
valueString = sizeString;
value = valueString.toDouble( &ok );
if ( !ok )
{
/*
* In case the conversion fails, a size of 100% allows a few cases to pass
* anyway (e.g. when it is the last partition of the layout)
*/
*unit = PartitionLayout::SizeUnit::Percent;
return 100;
}
if ( unitString.length() > 0 )
{
if ( unitString.at(0) == '%' )
*unit = PartitionLayout::SizeUnit::Percent;
else if ( unitString.at(0).toUpper() == 'K' )
*unit = PartitionLayout::SizeUnit::KiB;
else if ( unitString.at(0).toUpper() == 'M' )
*unit = PartitionLayout::SizeUnit::MiB;
else if ( unitString.at(0).toUpper() == 'G' )
*unit = PartitionLayout::SizeUnit::GiB;
else
*unit = PartitionLayout::SizeUnit::Byte;
}
else
{
*unit = PartitionLayout::SizeUnit::Byte;
}
return value;
}
void
PartitionLayout::addEntry( QString mountPoint, QString size, QString min )
{
PartitionLayout::PartitionEntry entry;
entry.partMountPoint = mountPoint;
entry.partFileSystem = FileSystem::Ext4;
entry.partSize = parseSizeString( size , &entry.partSizeUnit );
if (min.isEmpty())
entry.partMinSize = 0;
else
entry.partMinSize = parseSizeString( min , &entry.partMinSizeUnit );
partLayout.append( entry );
}
void
PartitionLayout::addEntry( QString label, QString mountPoint, QString fs, QString size, QString min )
{
PartitionLayout::PartitionEntry entry;
entry.partLabel = label;
entry.partMountPoint = mountPoint;
entry.partFileSystem = FileSystem::typeForName( fs );
entry.partSize = parseSizeString( size , &entry.partSizeUnit );
if (min.isEmpty())
entry.partMinSize = 0;
else
entry.partMinSize = parseSizeString( min , &entry.partMinSizeUnit );
partLayout.append( entry );
}
static qint64
sizeToSectors( double size, PartitionLayout::SizeUnit unit, qint64 totalSize, qint64 logicalSize )
{
qint64 sectors;
double tmp;
if ( unit == PartitionLayout::SizeUnit::Percent )
{
tmp = static_cast<double>( totalSize ) * size / 100;
sectors = static_cast<qint64>( tmp );
}
else
{
tmp = size;
if ( unit >= PartitionLayout::SizeUnit::KiB )
tmp *= 1024;
if ( unit >= PartitionLayout::SizeUnit::MiB )
tmp *= 1024;
if ( unit >= PartitionLayout::SizeUnit::GiB )
tmp *= 1024;
sectors = PartitionActions::bytesToSectors( static_cast<unsigned long long>( tmp ),
logicalSize
);
}
return sectors;
}
QList< Partition* >
PartitionLayout::execute( Device *dev, qint64 firstSector,
qint64 lastSector, QString luksPassphrase,
PartitionNode* parent,
const PartitionRole& role )
{
QList< Partition* > partList;
qint64 size, minSize, end;
qint64 totalSize = lastSector - firstSector + 1;
qint64 availableSize = totalSize;
// TODO: Refine partition sizes to make sure there is room for every partition
// Use a default (200-500M ?) minimum size for partition without minSize
foreach( const PartitionLayout::PartitionEntry& part, partLayout )
{
Partition *currentPartition = nullptr;
// Calculate partition size
size = sizeToSectors( part.partSize, part.partSizeUnit, totalSize, dev->logicalSize() );
minSize = sizeToSectors( part.partMinSize, part.partMinSizeUnit, totalSize, dev->logicalSize() );
if ( size < minSize )
size = minSize;
if ( size > availableSize )
size = availableSize;
end = firstSector + size - 1;
if ( luksPassphrase.isEmpty() )
{
currentPartition = KPMHelpers::createNewPartition(
parent,
*dev,
role,
static_cast<FileSystem::Type>(part.partFileSystem),
firstSector,
end,
PartitionTable::FlagNone
);
}
else
{
currentPartition = KPMHelpers::createNewEncryptedPartition(
parent,
*dev,
role,
static_cast<FileSystem::Type>(part.partFileSystem),
firstSector,
end,
luksPassphrase,
PartitionTable::FlagNone
);
}
PartitionInfo::setFormat( currentPartition, true );
PartitionInfo::setMountPoint( currentPartition, part.partMountPoint );
if ( !part.partLabel.isEmpty() )
currentPartition->fileSystem().setLabel( part.partLabel );
// Some buggy (legacy) BIOSes test if the bootflag of at least one partition is set.
// Otherwise they ignore the device in boot-order, so add it here.
partList.append( currentPartition );
firstSector = end + 1;
availableSize -= size;
}
return partList;
}
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