187 lines
6.8 KiB
C++
187 lines
6.8 KiB
C++
/*************************************************************************
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* Copyright (C) 2012 by Volker Lanz <vl@fidra.de> *
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* Copyright (C) 2013 by Andrius Štikonas <andrius@stikonas.eu> *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License as *
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* published by the Free Software Foundation; either version 3 of *
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* the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>.*
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*************************************************************************/
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#include "fs/luks.h"
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#include "util/capacity.h"
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#include "util/externalcommand.h"
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#include <QPointer>
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#include <QString>
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#include <QUuid>
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#include <KLocalizedString>
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namespace FS
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{
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FileSystem::CommandSupportType luks::m_GetUsed = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType luks::m_GetLabel = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType luks::m_Create = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType luks::m_Grow = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType luks::m_Shrink = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType luks::m_Move = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType luks::m_Check = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType luks::m_Copy = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType luks::m_Backup = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType luks::m_SetLabel = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType luks::m_UpdateUUID = FileSystem::cmdSupportNone;
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FileSystem::CommandSupportType luks::m_GetUUID = FileSystem::cmdSupportNone;
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luks::luks(qint64 firstsector, qint64 lastsector, qint64 sectorsused, const QString& label) :
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FileSystem(firstsector, lastsector, sectorsused, label, FileSystem::Luks)
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{
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}
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void luks::init()
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{
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m_UpdateUUID = findExternal(QStringLiteral("cryptsetup")) ? cmdSupportFileSystem : cmdSupportNone;
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m_Copy = cmdSupportCore;
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m_Move = cmdSupportCore;
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m_Backup = cmdSupportCore;
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m_GetUUID = findExternal(QStringLiteral("cryptsetup")) ? cmdSupportFileSystem : cmdSupportNone;
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}
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bool luks::supportToolFound() const
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{
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return
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// m_GetUsed != cmdSupportNone &&
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// m_GetLabel != cmdSupportNone &&
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// m_SetLabel != cmdSupportNone &&
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// m_Create != cmdSupportNone &&
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// m_Check != cmdSupportNone &&
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m_UpdateUUID != cmdSupportNone &&
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// m_Grow != cmdSupportNone &&
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// m_Shrink != cmdSupportNone &&
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m_Copy != cmdSupportNone &&
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m_Move != cmdSupportNone &&
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m_Backup != cmdSupportNone &&
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m_GetUUID != cmdSupportNone;
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}
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FileSystem::SupportTool luks::supportToolName() const
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{
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return SupportTool(QStringLiteral("cryptsetup"), QUrl(QStringLiteral("https://code.google.com/p/cryptsetup/")));
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}
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qint64 luks::minCapacity() const
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{
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return 3 * Capacity::unitFactor(Capacity::Byte, Capacity::MiB);
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}
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QString luks::unmountTitle() const
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{
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return i18nc("@title:menu", "Deactivate");
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}
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bool luks::unmount(const QString& deviceNode)
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{
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ExternalCommand cmd(QStringLiteral("cryptsetup"), QStringList() << QStringLiteral("luksClose") << mapperName(deviceNode));
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return cmd.run(-1) && cmd.exitCode() == 0;
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}
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QString luks::readUUID(const QString& deviceNode) const
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{
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ExternalCommand cmd(QStringLiteral("cryptsetup"), QStringList() << QStringLiteral("luksUUID") << deviceNode);
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if (cmd.run())
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{
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return cmd.output().simplified();
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}
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return QStringLiteral("---");
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}
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bool luks::updateUUID(Report& report, const QString& deviceNode) const
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{
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QUuid uuid = QUuid::createUuid();
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ExternalCommand cmd(report, QStringLiteral("cryptsetup"), QStringList() << QStringLiteral("luksUUID") << deviceNode << QStringLiteral("--uuid") << uuid.toString());
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return cmd.run(-1) && cmd.exitCode() == 0;
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}
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QString luks::mapperName (const QString& deviceNode)
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{
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ExternalCommand cmd(QStringLiteral("find"), QStringList() << QStringLiteral("/dev/mapper/") << QStringLiteral("-exec") << QStringLiteral("cryptsetup") << QStringLiteral("status") << QStringLiteral("{}") << QStringLiteral(";"));
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if (cmd.run())
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{
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QRegExp rxDeviceName(QStringLiteral("(/dev/mapper/[A-Za-z0-9-/]+) is active[A-Za-z0-9- \\.\n]+[A-Za-z0-9-: \n]+") + deviceNode);
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if (rxDeviceName.indexIn(cmd.output()) > -1)
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return rxDeviceName.cap(1);
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}
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return QString();
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}
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QString luks::getCipherName(const QString& deviceNode)
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{
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ExternalCommand cmd(QStringLiteral("cryptsetup"), QStringList() << QStringLiteral("luksDump") << deviceNode);
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if (cmd.run())
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{
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QRegExp rxCipherName(QStringLiteral("(?:Cipher name:\\s+)([A-Za-z0-9-]+)"));
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if (rxCipherName.indexIn(cmd.output()) > -1)
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return rxCipherName.cap(1);
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}
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return QStringLiteral("---");
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}
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QString luks::getCipherMode(const QString& deviceNode)
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{
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ExternalCommand cmd(QStringLiteral("cryptsetup"), QStringList() << QStringLiteral("luksDump") << deviceNode);
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if (cmd.run())
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{
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QRegExp rxCipherMode(QStringLiteral("(?:Cipher mode:\\s+)([A-Za-z0-9-]+)"));
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if (rxCipherMode.indexIn(cmd.output()) > -1)
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return rxCipherMode.cap(1);
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}
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return QStringLiteral("---");
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}
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QString luks::getHashName(const QString& deviceNode)
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{
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ExternalCommand cmd(QStringLiteral("cryptsetup"), QStringList() << QStringLiteral("luksDump") << deviceNode);
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if (cmd.run())
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{
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QRegExp rxHash(QStringLiteral("(?:Hash spec:\\s+)([A-Za-z0-9-]+)"));
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if (rxHash.indexIn(cmd.output()) > -1)
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return rxHash.cap(1);
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}
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return QStringLiteral("---");
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}
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QString luks::getKeySize(const QString& deviceNode)
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{
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ExternalCommand cmd(QStringLiteral("cryptsetup"), QStringList() << QStringLiteral("luksDump") << deviceNode);
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if (cmd.run())
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{
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QRegExp rxKeySize(QStringLiteral("(?:MK bits:\\s+)(\\d+)"));
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if (rxKeySize.indexIn(cmd.output()) > -1)
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return rxKeySize.cap(1);
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}
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return QStringLiteral("---");
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}
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QString luks::getPayloadOffset(const QString& deviceNode)
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{
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ExternalCommand cmd(QStringLiteral("cryptsetup"), QStringList() << QStringLiteral("luksDump") << deviceNode);
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if (cmd.run())
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{
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QRegExp rxPayloadOffset(QStringLiteral("(?:Payload offset:\\s+)(\\d+)"));
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if (rxPayloadOffset.indexIn(cmd.output()) > -1)
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return rxPayloadOffset.cap(1);
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}
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return QStringLiteral("---");
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}
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}
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