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kpmcore/src/fs/luks.h

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/*************************************************************************
* Copyright (C) 2012 by Volker Lanz <vl@fidra.de> *
* Copyright (C) 2013 by Andrius Štikonas <andrius@stikonas.eu> *
* Copyright (C) 2015-2016 by Teo Mrnjavac <teo@kde.org> *
* *
* 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/>.*
*************************************************************************/
#if !defined(KPMCORE_LUKS_H)
#define KPMCORE_LUKS_H
#include "util/libpartitionmanagerexport.h"
#include "fs/filesystem.h"
#include <QtGlobal>
class Report;
class QString;
class QWidget;
namespace FS
{
/** A LUKS crypto file system.
@author Andrius Štikonas <andrius@stikonas.eu>
*/
class LIBKPMCORE_EXPORT luks : public FileSystem
{
public:
luks(qint64 firstsector, qint64 lastsector, qint64 sectorsused, const QString& label, FileSystem::Type t = FileSystem::Type::Luks);
~luks() override;
enum KeyLocation {
unknown,
dmcrypt,
keyring
};
public:
void init() override;
void scan(const QString& deviceNode) override;
qint64 readUsedCapacity(const QString& deviceNode) const override;
CommandSupportType supportGetUsed() const override {
return m_GetUsed;
}
CommandSupportType supportGetLabel() const override {
return m_GetLabel;
}
CommandSupportType supportCreate() const override {
return m_Create;
}
CommandSupportType supportGrow() const override {
if (!m_isCryptOpen)
return cmdSupportNone;
if (m_Grow && m_innerFs)
return m_innerFs->supportGrow();
return cmdSupportNone;
}
CommandSupportType supportGrowOnline() const override {
if (!m_isCryptOpen)
return cmdSupportNone;
if (m_Grow && m_innerFs)
return m_innerFs->supportGrowOnline();
return cmdSupportNone;
}
CommandSupportType supportShrink() const override {
if (!m_isCryptOpen)
return cmdSupportNone;
if (m_Shrink && m_innerFs)
return m_innerFs->supportShrink();
return cmdSupportNone;
}
CommandSupportType supportShrinkOnline() const override {
if (!m_isCryptOpen)
return cmdSupportNone;
if (m_Shrink && m_innerFs)
return m_innerFs->supportShrinkOnline();
return cmdSupportNone;
}
CommandSupportType supportMove() const override {
if (m_isCryptOpen)
return cmdSupportNone;
return m_Move;
}
CommandSupportType supportCheck() const override {
if (!m_isCryptOpen)
return cmdSupportNone;
if (m_Check && m_innerFs)
return m_innerFs->supportCheck();
return cmdSupportNone;
}
CommandSupportType supportCheckOnline() const override {
if (!m_isCryptOpen)
return cmdSupportNone;
if (m_Check && m_innerFs)
return m_innerFs->supportCheckOnline();
return cmdSupportNone;
}
CommandSupportType supportCopy() const override {
if (m_isCryptOpen)
return cmdSupportNone;
return m_Copy;
}
CommandSupportType supportBackup() const override {
return m_Backup;
}
CommandSupportType supportSetLabel() const override {
if (m_Check && m_innerFs)
return m_innerFs->supportSetLabel();
return cmdSupportNone;
}
CommandSupportType supportUpdateUUID() const override {
return m_UpdateUUID;
}
CommandSupportType supportGetUUID() const override {
return m_GetUUID;
}
bool check(Report& report, const QString& deviceNode) const override;
bool create(Report& report, const QString& deviceNode) override;
SupportTool supportToolName() const override;
bool supportToolFound() const override;
QString readUUID(const QString& deviceNode) const override;
bool updateUUID(Report& report, const QString& deviceNode) const override;
bool resize(Report& report, const QString& deviceNode, qint64 length) const override;
bool resizeOnline(Report& report, const QString& deviceNode, const QString& mountPoint, qint64 length) const override;
QString readLabel(const QString& deviceNode) const override;
bool writeLabel(Report& report, const QString& deviceNode, const QString& newLabel) override;
QString mountTitle() const override;
QString unmountTitle() const override;
QString cryptOpenTitle() const;
QString cryptCloseTitle() const;
void setPassphrase(const QString&);
QString passphrase() const;
bool canMount(const QString&, const QString&) const override;
bool canUnmount(const QString&) const override;
bool isMounted() const;
void setMounted(bool mounted);
bool canCryptOpen(const QString& deviceNode) const;
bool canCryptClose(const QString& deviceNode) const;
bool isCryptOpen() const;
void setCryptOpen(bool cryptOpen);
bool cryptOpen(QWidget* parent, const QString& deviceNode);
bool cryptClose(const QString& deviceNode);
void loadInnerFileSystem(const QString& mapperNode);
void createInnerFileSystem(Type type);
bool mount(Report& report, const QString& deviceNode, const QString& mountPoint) override;
bool unmount(Report& report, const QString& deviceNode) override;
FileSystem::Type type() const override;
QString suggestedMapperName(const QString& deviceNode) const;
void getMapperName(const QString& deviceNode);
virtual void getLuksInfo(const QString& deviceNode);
FileSystem* innerFS() const { return m_innerFs; }
QString outerUuid() const;
QString mapperName() const { return m_MapperName; }
QString cipherName() const { return m_CipherName; }
QString cipherMode() const { return m_CipherMode; }
QString hashName() const { return m_HashName; }
qint64 keySize() const { return m_KeySize; }
qint64 payloadOffset() const { return m_PayloadOffset; }
static bool canEncryptType(FileSystem::Type type);
void initLUKS();
bool testPassphrase(const QString& deviceNode, const QString& passphrase) const;
protected:
virtual QString readOuterUUID(const QString& deviceNode) const;
void setPayloadSize();
public:
static CommandSupportType m_GetUsed;
static CommandSupportType m_GetLabel;
static CommandSupportType m_Create;
static CommandSupportType m_Grow;
static CommandSupportType m_Shrink;
static CommandSupportType m_Move;
static CommandSupportType m_Check;
static CommandSupportType m_Copy;
static CommandSupportType m_Backup;
static CommandSupportType m_SetLabel;
static CommandSupportType m_UpdateUUID;
static CommandSupportType m_GetUUID;
protected:
mutable FileSystem* m_innerFs;
mutable bool m_isCryptOpen;
mutable bool m_cryptsetupFound;
QString m_passphrase;
bool m_isMounted;
QString m_MapperName;
QString m_CipherName;
QString m_CipherMode;
QString m_HashName;
qint64 m_KeySize;
qint64 m_PayloadOffset;
qint64 m_PayloadSize;
QString m_outerUuid;
luks::KeyLocation m_KeyLocation = unknown;
};
}
#endif
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