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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#ifndef SSHINCOMINGPACKET_P_H
#define SSHINCOMINGPACKET_P_H
#include "sshpacket_p.h"
#include "sshcryptofacility_p.h"
#include "sshpacketparser_p.h"
#include <QList>
#include <QString>
namespace QSsh {
namespace Internal {
class SshKeyExchange;
struct SshKeyExchangeInit
{
char cookie[16];
SshNameList keyAlgorithms;
SshNameList serverHostKeyAlgorithms;
SshNameList encryptionAlgorithmsClientToServer;
SshNameList encryptionAlgorithmsServerToClient;
SshNameList macAlgorithmsClientToServer;
SshNameList macAlgorithmsServerToClient;
SshNameList compressionAlgorithmsClientToServer;
SshNameList compressionAlgorithmsServerToClient;
SshNameList languagesClientToServer;
SshNameList languagesServerToClient;
bool firstKexPacketFollows;
};
struct SshKeyExchangeReply
{
QByteArray k_s;
QList<Botan::BigInt> parameters; // DSS: p, q, g, y. RSA: e, n.
Botan::BigInt f;
QByteArray signatureBlob;
};
struct SshDisconnect
{
quint32 reasonCode;
QString description;
QByteArray language;
};
struct SshUserAuthBanner
{
QString message;
QByteArray language;
};
struct SshDebug
{
bool display;
QString message;
QByteArray language;
};
struct SshUnimplemented
{
quint32 invalidMsgSeqNr;
};
struct SshChannelOpenFailure
{
quint32 localChannel;
quint32 reasonCode;
QString reasonString;
QByteArray language;
};
struct SshChannelOpenConfirmation
{
quint32 localChannel;
quint32 remoteChannel;
quint32 remoteWindowSize;
quint32 remoteMaxPacketSize;
};
struct SshChannelWindowAdjust
{
quint32 localChannel;
quint32 bytesToAdd;
};
struct SshChannelData
{
quint32 localChannel;
QByteArray data;
};
struct SshChannelExtendedData
{
quint32 localChannel;
quint32 type;
QByteArray data;
};
struct SshChannelExitStatus
{
quint32 localChannel;
quint32 exitStatus;
};
struct SshChannelExitSignal
{
quint32 localChannel;
QByteArray signal;
bool coreDumped;
QString error;
QByteArray language;
};
class SshIncomingPacket : public AbstractSshPacket
{
public:
SshIncomingPacket();
void consumeData(QByteArray &data);
void recreateKeys(const SshKeyExchange &keyExchange);
void reset();
SshKeyExchangeInit extractKeyExchangeInitData() const;
SshKeyExchangeReply extractKeyExchangeReply(const QByteArray &pubKeyAlgo) const;
SshDisconnect extractDisconnect() const;
SshUserAuthBanner extractUserAuthBanner() const;
SshDebug extractDebug() const;
SshUnimplemented extractUnimplemented() const;
SshChannelOpenFailure extractChannelOpenFailure() const;
SshChannelOpenConfirmation extractChannelOpenConfirmation() const;
SshChannelWindowAdjust extractWindowAdjust() const;
SshChannelData extractChannelData() const;
SshChannelExtendedData extractChannelExtendedData() const;
SshChannelExitStatus extractChannelExitStatus() const;
SshChannelExitSignal extractChannelExitSignal() const;
quint32 extractRecipientChannel() const;
QByteArray extractChannelRequestType() const;
quint32 serverSeqNr() const { return m_serverSeqNr; }
static const QByteArray ExitStatusType;
static const QByteArray ExitSignalType;
private:
virtual quint32 cipherBlockSize() const;
virtual quint32 macLength() const;
virtual void calculateLength() const;
void decrypt();
void moveFirstBytes(QByteArray &target, QByteArray &source, int n);
quint32 m_serverSeqNr;
SshDecryptionFacility m_decrypter;
};
} // namespace Internal
} // namespace QSsh
#endif // SSHINCOMINGPACKET_P_H
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