1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
/****************************************************************************
**
** Copyright (C) 2014 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://www.qt.io/licensing. For further information
** use the contact form at http://www.qt.io/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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** 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 SSHCONNECTION_P_H
#define SSHCONNECTION_P_H
#include "sshconnection.h"
#include "sshexception_p.h"
#include "sshincomingpacket_p.h"
#include "sshsendfacility_p.h"
#include <QHash>
#include <QList>
#include <QObject>
#include <QPair>
#include <QScopedPointer>
#include <QTimer>
QT_BEGIN_NAMESPACE
class QTcpSocket;
QT_END_NAMESPACE
namespace QSsh {
class SftpChannel;
class SshRemoteProcess;
class SshDirectTcpIpTunnel;
namespace Internal {
class SshChannelManager;
// NOTE: When you add stuff here, don't forget to update m_packetHandlers.
enum SshStateInternal {
SocketUnconnected, // initial and after disconnect
SocketConnecting, // After connectToHost()
SocketConnected, // After socket's connected() signal
UserAuthServiceRequested,
UserAuthRequested,
ConnectionEstablished // After service has been started
// ...
};
enum SshKeyExchangeState {
NoKeyExchange,
KexInitSent,
DhInitSent,
NewKeysSent,
KeyExchangeSuccess // After server's DH_REPLY message
};
class SshConnectionPrivate : public QObject
{
Q_OBJECT
friend class QSsh::SshConnection;
public:
SshConnectionPrivate(SshConnection *conn,
const SshConnectionParameters &serverInfo);
~SshConnectionPrivate();
void connectToHost();
void closeConnection(SshErrorCode sshError, SshError userError,
const QByteArray &serverErrorString, const QString &userErrorString);
QSharedPointer<SshRemoteProcess> createRemoteProcess(const QByteArray &command);
QSharedPointer<SshRemoteProcess> createRemoteShell();
QSharedPointer<SftpChannel> createSftpChannel();
QSharedPointer<SshDirectTcpIpTunnel> createTunnel(quint16 remotePort);
SshStateInternal state() const { return m_state; }
SshError error() const { return m_error; }
QString errorString() const { return m_errorString; }
signals:
void connected();
void disconnected();
void dataAvailable(const QString &message);
void error(QSsh::SshError);
private:
Q_SLOT void handleSocketConnected();
Q_SLOT void handleIncomingData();
Q_SLOT void handleSocketError();
Q_SLOT void handleSocketDisconnected();
Q_SLOT void handleTimeout();
Q_SLOT void sendKeepAlivePacket();
void handleServerId();
void handlePackets();
void handleCurrentPacket();
void handleKeyExchangeInitPacket();
void handleKeyExchangeReplyPacket();
void handleNewKeysPacket();
void handleServiceAcceptPacket();
void handlePasswordExpiredPacket();
void handleUserAuthInfoRequestPacket();
void handleUserAuthSuccessPacket();
void handleUserAuthFailurePacket();
void handleUserAuthBannerPacket();
void handleUnexpectedPacket();
void handleGlobalRequest();
void handleDebugPacket();
void handleUnimplementedPacket();
void handleChannelRequest();
void handleChannelOpen();
void handleChannelOpenFailure();
void handleChannelOpenConfirmation();
void handleChannelSuccess();
void handleChannelFailure();
void handleChannelWindowAdjust();
void handleChannelData();
void handleChannelExtendedData();
void handleChannelEof();
void handleChannelClose();
void handleDisconnect();
bool canUseSocket() const;
void createPrivateKey();
void sendData(const QByteArray &data);
typedef void (SshConnectionPrivate::*PacketHandler)();
typedef QList<SshStateInternal> StateList;
void setupPacketHandlers();
void setupPacketHandler(SshPacketType type, const StateList &states,
PacketHandler handler);
typedef QPair<StateList, PacketHandler> HandlerInStates;
QHash<SshPacketType, HandlerInStates> m_packetHandlers;
static const quint64 InvalidSeqNr;
QTcpSocket *m_socket;
SshStateInternal m_state;
SshKeyExchangeState m_keyExchangeState;
SshIncomingPacket m_incomingPacket;
SshSendFacility m_sendFacility;
SshChannelManager * const m_channelManager;
const SshConnectionParameters m_connParams;
QByteArray m_incomingData;
SshError m_error;
QString m_errorString;
QScopedPointer<SshKeyExchange> m_keyExchange;
QTimer m_timeoutTimer;
QTimer m_keepAliveTimer;
bool m_ignoreNextPacket;
SshConnection *m_conn;
quint64 m_lastInvalidMsgSeqNr;
QByteArray m_serverId;
bool m_serverHasSentDataBeforeId;
bool m_triedAllPasswordBasedMethods;
};
} // namespace Internal
} // namespace QSsh
#endif // SSHCONNECTION_P_H
|
