plugins/sfdisk/sfdiskgptattributes.cpp

0001 /*
0002     SPDX-FileCopyrightText: 2020 Gaël PORTAY <gael.portay@collabora.com>
0003
0004     SPDX-License-Identifier: GPL-3.0-or-later
0005 */
0006
0007 #include "plugins/sfdisk/sfdiskgptattributes.h"
0008
0009 #include <QString>
0010 #include <QStringList>
0011 #include <QStringView>
0012
0013 const static QString requiredPartition = QStringLiteral("RequiredPartition");
0014 const static QString noBlockIoProtocol = QStringLiteral("NoBlockIOProtocol");
0015 const static QString legacyBiosBootable = QStringLiteral("LegacyBIOSBootable");
0016 const static QString guid = QStringLiteral("GUID:");
0017
0018 quint64 SfdiskGptAttributes::toULongLong(const QStringList& attrs)
0019 {
0020     quint64 attributes = 0;
0021     for (auto& attr: attrs)
0022         if (attr.compare(requiredPartition) == 0)
0023             attributes |= 0x1ULL;
0024         else if (attr.compare(noBlockIoProtocol) == 0)
0025             attributes |= 0x2ULL;
0026         else if (attr.compare(legacyBiosBootable) == 0)
0027             attributes |= 0x4ULL;
0028         else if (attr.startsWith(guid))
0029             attributes |= 1ULL << QStringView{ attr }.mid(guid.length(), attr.length() - guid.length()).toULongLong();
0030
0031     return attributes;
0032 }
0033
0034 QStringList SfdiskGptAttributes::toStringList(quint64 attrs)
0035 {
0036     QStringList list;
0037     if (attrs & 0x1)
0038         list += requiredPartition;
0039     if (attrs & 0x2)
0040         list += noBlockIoProtocol;
0041     if (attrs & 0x4)
0042         list += legacyBiosBootable;
0043     for (int bit = 48; bit < 64; bit++)
0044         if (attrs & (1LL << bit))
0045             list += guid + QString::number(bit);
0046
0047     return list;
0048 }