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/******************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtKnx module.
**
** $QT_BEGIN_LICENSE:GPL$
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
******************************************************************************/
#ifndef QKNXNETIPDISCOVERYAGENT_P_H
#define QKNXNETIPDISCOVERYAGENT_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt KNX API. It exists for the convenience
// of the Qt KNX implementation. This header file may change from version
// to version without notice, or even be removed.
//
// We mean it.
//
#include <QtCore/qtimer.h>
#include <QtKnx/qtknxglobal.h>
#include <QtKnx/qknxnetip.h>
#include <QtKnx/qknxnetipsearchrequest.h>
#include <QtKnx/qknxnetipsearchresponse.h>
#include <QtKnx/qknxnetipserverdiscoveryagent.h>
#include <QtNetwork/qhostaddress.h>
#include <QtNetwork/qnetworkdatagram.h>
#include <QtNetwork/qnetworkinterface.h>
#include <QtNetwork/qudpsocket.h>
#include <private/qobject_p.h>
QT_BEGIN_NAMESPACE
struct Adapter
{
QHostAddress address;
QNetworkInterface iface;
};
struct DiscovererConfig
{
DiscovererConfig() = default;
~DiscovererConfig() = default;
DiscovererConfig(int ttl, int timeout, bool nat, bool multicast, bool coreV1, bool coreV2,
const QVector<QKnxNetIpSrp> &srps)
: Ttl(ttl)
, Timeout(timeout)
, Nat(nat)
, Multicast(multicast)
, DiscoveryCoreV1(coreV1)
, DiscoveryCoreV2(coreV2)
, ExtendedSearchParameters(srps)
{}
int Ttl { 64 };
int Timeout { 3000 };
bool Nat { false };
bool Multicast { true };
bool DiscoveryCoreV1 { true };
bool DiscoveryCoreV2 { true };
QVector<QKnxNetIpSrp> ExtendedSearchParameters;
};
class Discoverer : public QObject
{
Q_OBJECT
public:
Discoverer(const QHostAddress &address, const QNetworkInterface iface, const DiscovererConfig &config);
~Discoverer() override;
public slots:
void start();
void finish();
signals:
void started();
void timeout();
void finished(Discoverer *iam);
void stateChanged(QKnxNetIpServerDiscoveryAgent::State state);
void errorOccurred(QKnxNetIpServerDiscoveryAgent::Error error, const QString &errorString);
void deviceDiscovered(const QKnxNetIpServerInfo &discoveryInfo);
private slots:
void onTimeout();
void onReadyRead();
void onError(QUdpSocket::SocketError error);
private:
void setAndEmitStateChanged(QKnxNetIpServerDiscoveryAgent::State state);
private:
QHostAddress m_address;
QNetworkInterface m_iface;
QTimer *m_timer { nullptr };
QUdpSocket *m_socket { nullptr };
DiscovererConfig m_config;
QVector<QByteArray> m_devices;
QHostAddress m_multicast { QStringLiteral("224.0.23.12") };
QKnxNetIpServerDiscoveryAgent::State m_state { QKnxNetIpServerDiscoveryAgent::State::NotRunning };
};
class Q_KNX_EXPORT QKnxNetIpServerDiscoveryAgentPrivate final : public QObjectPrivate
{
Q_DECLARE_PUBLIC(QKnxNetIpServerDiscoveryAgent)
public:
QKnxNetIpServerDiscoveryAgentPrivate(const QHostAddress &addr, quint16 prt);
~QKnxNetIpServerDiscoveryAgentPrivate() override = default;
void setupSocket();
void setupAndStartReceiveTimer();
void setupAndStartFrequencyTimer();
void setAndEmitStateChanged(QKnxNetIpServerDiscoveryAgent::State newState);
void setAndEmitDeviceDiscovered(const QKnxNetIpServerInfo &discoveryInfo);
void setAndEmitErrorOccurred(QKnxNetIpServerDiscoveryAgent::Error newError, const QString &message);
void start();
void start(const QVector<Adapter> &adapters);
void start(const QVector<QHostAddress> addresses);
void start(QKnxNetIpServerDiscoveryAgent::InterfaceTypes types);
void stop();
private:
QUdpSocket *socket { nullptr };
QTimer *receiveTimer { nullptr };
QTimer *frequencyTimer { nullptr };
quint16 port { 0 }, usedPort { 0 };
QHostAddress address { QHostAddress::Null }, usedAddress;
const quint16 multicastPort { QKnxNetIp::Constants::DefaultPort };
const QHostAddress multicastAddress { QLatin1String(QKnxNetIp::Constants::MulticastAddress) };
quint8 ttl { 64 };
bool nat { false };
int frequency { 0 };
int timeout { QKnxNetIp::Timeout::SearchTimeout };
QString errorString;
QVector<QKnxNetIpServerInfo> servers;
QKnxNetIpServerDiscoveryAgent::Error error { QKnxNetIpServerDiscoveryAgent::Error::None };
QKnxNetIpServerDiscoveryAgent::State state { QKnxNetIpServerDiscoveryAgent::State::NotRunning };
QKnxNetIpServerDiscoveryAgent::ResponseType
type { QKnxNetIpServerDiscoveryAgent::ResponseType::Multicast };
QKnxNetIpServerDiscoveryAgent::DiscoveryModes mode
{ QKnxNetIpServerDiscoveryAgent::DiscoveryMode::CoreV1 };
QVector<QKnxNetIpSrp> srps;
Adapter adapter;
QVector<Discoverer*> discoveries;
};
QT_END_NAMESPACE
#endif
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