add "shred partition" feature
svn path=/trunk/extragear/sysadmin/partitionmanager/; revision=1076584
This commit is contained in:
Volker Lanz
parent
d975416a53
commit
908bfe3669
16
TODO
16
TODO
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@ -4,7 +4,7 @@ Random plans and ideas for 1.1 and beyond:
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that deals with labels and try to get it out of the package. If
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that's entirely impossible, maybe a kludge like GParted uses should be
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considered *shudder*
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* To say it bluntly: libparted is a complete dead end. What we have to do is
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separate the backend logic from the core and write backend interfaces so
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partitionmanager can make use of other backends apart from libparted. KDE's
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@ -13,11 +13,6 @@ Random plans and ideas for 1.1 and beyond:
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Also, DeviceKit-disks is around the corner and implementations using it for
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solid begin to materialize.
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* People want mount management (i.e. fstab management) in partition manager.
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I've written a small kcm, Mount Manager, as a proof of concept how this could
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look like, but I'm not yet happy with it. Eventually, this will / should /
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can me merged into partition manager.
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* The whole lvm/dm debacle. Nothing much useful can be done about it without
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the backend stuff mentioned above, though.
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@ -28,4 +23,11 @@ Random plans and ideas for 1.1 and beyond:
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hopefully be able to get meaningful progress status reporting while resizing,
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checking and so on.
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* Default size of File System Support dialog window.
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* Re-design partition list. Maybe include all disks into the list and drop the
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devices panel?
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* Information about file system on a separate tab in the properties, unique
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to the file system in use.
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@ -0,0 +1,63 @@
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/***************************************************************************
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* Copyright (C) 2010 by Volker Lanz <vl@fidra.de> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (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, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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***************************************************************************/
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#include "core/copysourcerandom.h"
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#include <kdebug.h>
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/** Constructs a CopySourceRandom with the given @p size
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@param s the size the copy source will (pretend to) have
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@param sectorsize the sectorsize the copy source will (pretend to) have
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*/
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CopySourceRandom::CopySourceRandom (qint64 s, qint32 sectorsize) :
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CopySource(),
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m_Size(s),
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m_SectorSize(sectorsize),
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m_Random("/dev/urandom")
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{
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}
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/** Opens the random source.
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@return true on success
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*/
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bool CopySourceRandom::open()
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{
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return random().open(QIODevice::ReadOnly);
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}
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/** Returns the length of the random source in sectors.
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@return length of the source in sectors.
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*/
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qint64 CopySourceRandom::length() const
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{
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return size() / sectorSize();
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}
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/** Reads the given number of sectors from the random source into the given buffer.
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@param buffer buffer to store the sectors read in
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@param readOffset offset where to begin reading (unused)
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@param numSectors number of sectors to read
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@return true on success
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*/
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bool CopySourceRandom::readSectors(void* buffer, qint64 readOffset, qint64 numSectors)
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{
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Q_UNUSED(readOffset);
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return random().read(static_cast<char*>(buffer), numSectors * sectorSize()) == numSectors * sectorSize();
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}
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@ -0,0 +1,62 @@
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/***************************************************************************
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* Copyright (C) 2010 by Volker Lanz <vl@fidra.de> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (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, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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***************************************************************************/
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#if !defined(COPYSOURCERANDOM__H)
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#define COPYSOURCERANDOM__H
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#include "core/copysource.h"
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#include <QFile>
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class CopyTarget;
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/** @brief A source of random data to copy from.
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Represents a random date source to copy from. Used to securely overwrite data on disk.
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@author vl@fidra.de
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*/
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class CopySourceRandom : public CopySource
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{
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public:
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CopySourceRandom(qint64 size, qint32 sectorsize);
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public:
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virtual bool open();
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virtual bool readSectors(void* buffer, qint64 readOffset, qint64 numSectors);
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virtual qint64 length() const;
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virtual qint32 sectorSize() const { return m_SectorSize; } /**< @return the file's sector size */
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virtual bool overlaps(const CopyTarget&) const { return false; } /**< @return false for random source */
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virtual qint64 firstSector() const { return 0; } /**< @return 0 for random source */
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virtual qint64 lastSector() const { return length(); } /**< @return equal to length for random source. @see length() */
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protected:
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QFile& random() { return m_Random; }
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const QFile& random() const { return m_Random; }
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qint32 size() const { return m_Size; }
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private:
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qint64 m_Size;
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qint32 m_SectorSize;
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QFile m_Random;
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};
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#endif
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@ -1,6 +1,6 @@
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<!DOCTYPE kpartgui SYSTEM "kpartgui.dtd">
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<gui name="KDE Partition Manager" version="5">
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<gui name="KDE Partition Manager" version="7">
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<ToolBar name="editToolBar">
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<text context="@title:menu turn on and off edit toolbar">Edit Toolbar</text>
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<Action name="applyAllOperations"/>
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@ -50,6 +50,7 @@
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<Action name="newPartition"/>
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<Action name="resizePartition"/>
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<Action name="deletePartition"/>
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<Action name="shredPartition"/>
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<separator name="separator_6"/>
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<Action name="copyPartition"/>
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<Action name="pastePartition"/>
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@ -215,7 +215,15 @@ void PartitionManagerWidget::setupActions()
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deletePartition->setToolTip(i18nc("@info:tooltip", "Delete partition"));
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deletePartition->setStatusTip(i18nc("@info:status", "Delete a partition."));
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deletePartition->setShortcut(Qt::Key_Delete);
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deletePartition->setIcon(BarIcon("edit-delete-shred"));
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deletePartition->setIcon(BarIcon("edit-delete"));
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KAction* shredPartition = actionCollection()->addAction("shredPartition", this, SLOT(onShredPartition()));
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shredPartition->setEnabled(false);
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shredPartition->setText(i18nc("@action:inmenu", "Shred"));
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shredPartition->setToolTip(i18nc("@info:tooltip", "Shred partition"));
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shredPartition->setStatusTip(i18nc("@info:status", "Shred a partition so that its contents cannot be restored."));
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shredPartition->setShortcut(Qt::SHIFT | Qt::Key_Delete);
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shredPartition->setIcon(BarIcon("edit-delete-shred"));
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KAction* copyPartition = actionCollection()->addAction("copyPartition", this, SLOT(onCopyPartition()));
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copyPartition->setEnabled(false);
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@ -328,6 +336,7 @@ void PartitionManagerWidget::enableActions()
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actionCollection()->action("resizePartition")->setEnabled(!readOnly && canResize);
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actionCollection()->action("copyPartition")->setEnabled(CopyOperation::canCopy(part));
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actionCollection()->action("deletePartition")->setEnabled(!readOnly && DeleteOperation::canDelete(part));
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actionCollection()->action("shredPartition")->setEnabled(!readOnly && DeleteOperation::canDelete(part));
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actionCollection()->action("pastePartition")->setEnabled(!readOnly && CopyOperation::canPaste(part, clipboardPartition()));
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actionCollection()->action("propertiesPartition")->setEnabled(part != NULL);
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@ -489,6 +498,7 @@ void PartitionManagerWidget::showPartitionContextMenu(const QPoint& pos)
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partitionMenu.addAction(actionCollection()->action("newPartition"));
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partitionMenu.addAction(actionCollection()->action("resizePartition"));
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partitionMenu.addAction(actionCollection()->action("deletePartition"));
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partitionMenu.addAction(actionCollection()->action("shredPartition"));
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partitionMenu.addSeparator();
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partitionMenu.addAction(actionCollection()->action("copyPartition"));
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partitionMenu.addAction(actionCollection()->action("pastePartition"));
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@ -664,7 +674,7 @@ void PartitionManagerWidget::onNewPartition()
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delete dlg;
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}
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void PartitionManagerWidget::onDeletePartition()
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void PartitionManagerWidget::onDeletePartition(bool shred)
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{
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Q_ASSERT(selectedDevice());
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Q_ASSERT(selectedPartition());
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@ -712,12 +722,17 @@ void PartitionManagerWidget::onDeletePartition()
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setClipboardPartition(NULL);
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}
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operationStack().push(new DeleteOperation(*selectedDevice(), selectedPartition()));
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operationStack().push(new DeleteOperation(*selectedDevice(), selectedPartition(), shred));
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updatePartitions();
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emit statusChanged();
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emit operationsChanged();
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}
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void PartitionManagerWidget::onShredPartition()
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{
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onDeletePartition(true);
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}
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void PartitionManagerWidget::onResizePartition()
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{
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Q_ASSERT(selectedDevice());
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@ -126,7 +126,8 @@ class LIBPARTITIONMANAGERPRIVATE_EXPORT PartitionManagerWidget : public QWidget,
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void onMountPartition();
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void onEditMountPoint();
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void onNewPartition();
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void onDeletePartition();
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void onDeletePartition(bool shred = false);
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void onShredPartition();
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void onResizePartition();
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void onCopyPartition();
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void onPastePartition();
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@ -0,0 +1,89 @@
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/***************************************************************************
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* Copyright (C) 2010 by Volker Lanz <vl@fidra.de> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (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, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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***************************************************************************/
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#include "jobs/shredfilesystemjob.h"
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#include "core/partition.h"
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#include "core/device.h"
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#include "core/copysourcerandom.h"
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#include "core/copytargetdevice.h"
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#include "fs/filesystem.h"
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#include "fs/filesystemfactory.h"
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#include "util/report.h"
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#include <klocale.h>
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#include <kdebug.h>
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/** Creates a new ShredFileSystemJob
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@param d the Device the FileSystem is on
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@param p the Partition the FileSystem is in
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*/
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ShredFileSystemJob::ShredFileSystemJob(Device& d, Partition& p) :
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Job(),
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m_Device(d),
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m_Partition(p)
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{
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}
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qint32 ShredFileSystemJob::numSteps() const
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{
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return 100;
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}
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bool ShredFileSystemJob::run(Report& parent)
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{
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Q_ASSERT(device().deviceNode() == partition().devicePath());
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if (device().deviceNode() != partition().devicePath())
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{
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kWarning() << "deviceNode: " << device().deviceNode() << ", partition path: " << partition().devicePath();
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return false;
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}
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bool rval = false;
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Report* report = jobStarted(parent);
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// Again, a scope for copyTarget and copySource. See MoveFileSystemJob::run()
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{
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CopyTargetDevice copyTarget(device(), partition().fileSystem().firstSector(), partition().fileSystem().lastSector());
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CopySourceRandom copySource(partition().capacity(), copyTarget.sectorSize());
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if (!copySource.open())
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report->line() << i18nc("@info/plain", "Could not open random data source to overwrite file system.");
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else if (!copyTarget.open())
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report->line() << i18nc("@info/plain", "Could not open target partition <filename>%1</filename> to restore to.", partition().deviceNode());
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else
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{
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rval = copyBlocks(*report, copyTarget, copySource);
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report->line() << i18nc("@info/plain", "Closing device. This may take a few seconds.");
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}
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}
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jobFinished(*report, rval);
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return rval;
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}
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QString ShredFileSystemJob::description() const
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{
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return i18nc("@info/plain", "Shred the file system on <filename>%1</filename>", partition().deviceNode());
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}
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@ -0,0 +1,60 @@
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/***************************************************************************
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* Copyright (C) 2010 by Volker Lanz <vl@fidra.de> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
|
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* (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, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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***************************************************************************/
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#if !defined(SHREDFILESYSTEMJOB__H)
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#define SHREDFILESYSTEMJOB__H
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#include "jobs/job.h"
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#include <QString>
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class Partition;
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class Device;
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class Report;
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/** @brief Securely delete and shred a FileSystem.
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Shreds (overwrites with random data) a FileSystem on given Partition and Device.
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@author vl@fidra.de
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*/
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class ShredFileSystemJob : public Job
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{
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public:
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ShredFileSystemJob(Device& d, Partition& p);
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public:
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virtual bool run(Report& parent);
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virtual qint32 numSteps() const;
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virtual QString description() const;
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protected:
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Partition& partition() { return m_Partition; }
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const Partition& partition() const { return m_Partition; }
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Device& device() { return m_Device; }
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const Device& device() const { return m_Device; }
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private:
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Device& m_Device;
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Partition& m_Partition;
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};
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#endif
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@ -1,5 +1,5 @@
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/***************************************************************************
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* Copyright (C) 2008 by Volker Lanz <vl@fidra.de> *
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* Copyright (C) 2008, 2010 by Volker Lanz <vl@fidra.de> *
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* *
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* This program is free software; you can redistribute it and/or modify *
|
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* it under the terms of the GNU General Public License as published by *
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|
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@ -25,6 +25,7 @@
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#include "jobs/deletepartitionjob.h"
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#include "jobs/deletefilesystemjob.h"
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#include "jobs/shredfilesystemjob.h"
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#include "util/capacity.h"
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@ -37,11 +38,14 @@
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@param d the Device to delete a Partition on
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@param p pointer to the Partition to delete. May not be NULL
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*/
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DeleteOperation::DeleteOperation(Device& d, Partition* p) :
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DeleteOperation::DeleteOperation(Device& d, Partition* p, bool secure) :
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Operation(),
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m_TargetDevice(d),
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m_DeletedPartition(p),
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m_DeleteFileSystemJob(new DeleteFileSystemJob(targetDevice(), deletedPartition())),
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m_Secure(secure),
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m_DeleteFileSystemJob(isSecure()
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? static_cast<Job*>(new ShredFileSystemJob(targetDevice(), deletedPartition()))
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: static_cast<Job*>(new DeleteFileSystemJob(targetDevice(), deletedPartition()))),
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m_DeletePartitionJob(new DeletePartitionJob(targetDevice(), deletedPartition()))
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{
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addJob(deleteFileSystemJob());
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@ -68,7 +72,10 @@ void DeleteOperation::undo()
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QString DeleteOperation::description() const
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{
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return QString(i18nc("@info/plain", "Delete partition <filename>%1</filename> (%2, %3)", deletedPartition().deviceNode(), Capacity(deletedPartition()).toString(), deletedPartition().fileSystem().name()));
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if (isSecure())
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return QString(i18nc("@info/plain", "Shred partition <filename>%1</filename> (%2, %3)", deletedPartition().deviceNode(), Capacity(deletedPartition()).toString(), deletedPartition().fileSystem().name()));
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else
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return QString(i18nc("@info/plain", "Delete partition <filename>%1</filename> (%2, %3)", deletedPartition().deviceNode(), Capacity(deletedPartition()).toString(), deletedPartition().fileSystem().name()));
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}
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void DeleteOperation::checkAdjustLogicalNumbers(Partition& p, bool undo)
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@ -90,7 +97,7 @@ bool DeleteOperation::canDelete(const Partition* p)
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{
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if (p == NULL)
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return false;
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||||
|
||||
|
||||
if (p->isMounted())
|
||||
return false;
|
||||
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
/***************************************************************************
|
||||
* Copyright (C) 2008 by Volker Lanz <vl@fidra.de> *
|
||||
* Copyright (C) 2008, 2010 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 *
|
||||
|
|
@ -29,7 +29,7 @@ class Device;
|
|||
class OperationStack;
|
||||
class Partition;
|
||||
|
||||
class DeleteFileSystemJob;
|
||||
class Job;
|
||||
class DeletePartitionJob;
|
||||
|
||||
/** @brief Delete a Partition.
|
||||
|
|
@ -43,14 +43,15 @@ class DeleteOperation : public Operation
|
|||
Q_DISABLE_COPY(DeleteOperation)
|
||||
|
||||
public:
|
||||
DeleteOperation(Device& d, Partition* p);
|
||||
DeleteOperation(Device& d, Partition* p, bool secure = false);
|
||||
~DeleteOperation();
|
||||
|
||||
public:
|
||||
QString iconName() const { return "edit-delete-shred"; }
|
||||
QString iconName() const { return isSecure() ? "edit-delete-shred" : "edit-delete"; }
|
||||
QString description() const;
|
||||
void preview();
|
||||
void undo();
|
||||
bool isSecure() const { return m_Secure; }
|
||||
|
||||
static bool canDelete(const Partition* p);
|
||||
|
||||
|
|
@ -65,13 +66,14 @@ class DeleteOperation : public Operation
|
|||
|
||||
void setDeletedPartition(Partition* p) { m_DeletedPartition = p; }
|
||||
|
||||
DeleteFileSystemJob* deleteFileSystemJob() { return m_DeleteFileSystemJob; }
|
||||
Job* deleteFileSystemJob() { return m_DeleteFileSystemJob; }
|
||||
DeletePartitionJob* deletePartitionJob() { return m_DeletePartitionJob; }
|
||||
|
||||
private:
|
||||
Device& m_TargetDevice;
|
||||
Partition* m_DeletedPartition;
|
||||
DeleteFileSystemJob* m_DeleteFileSystemJob;
|
||||
bool m_Secure;
|
||||
Job* m_DeleteFileSystemJob;
|
||||
DeletePartitionJob* m_DeletePartitionJob;
|
||||
};
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue