void LanLinkProvider::onNetworkChange()
{
if (combineBroadcastsTimer.isActive()) {
qCDebug(KDECONNECT_CORE()) << "Preventing duplicate broadcasts";
return;
}
combineBroadcastsTimer.start();
}
//I'm in a new network, let's be polite and introduce myself
void LanLinkProvider::broadcastToNetwork()
{
if (!mServer->isListening()) {
//Not started
return;
}
Q_ASSERT(mTcpPort != 0);
qCDebug(KDECONNECT_CORE()) << "Broadcasting identity packet";
QHostAddress destAddress = mTestMode? QHostAddress::LocalHost : QHostAddress(QStringLiteral("255.255.255.255"));
NetworkPackage np(QLatin1String(""));
NetworkPackage::createIdentityPackage(&np);
np.set(QStringLiteral("tcpPort"), mTcpPort);
#ifdef Q_OS_WIN
//On Windows we need to broadcast from every local IP address to reach all networks
QUdpSocket sendSocket;
for (const QNetworkInterface &iface : QNetworkInterface::allInterfaces()) {
if ( (iface.flags() & QNetworkInterface::IsUp)
&& (iface.flags() & QNetworkInterface::IsRunning)
&& (iface.flags() & QNetworkInterface::CanBroadcast)) {
for (const QNetworkAddressEntry &ifaceAddress : iface.addressEntries()) {
QHostAddress sourceAddress = ifaceAddress.ip();
if (sourceAddress.protocol() == QAbstractSocket::IPv4Protocol && sourceAddress != QHostAddress::LocalHost) {
qCDebug(KDECONNECT_CORE()) << "Broadcasting as" << sourceAddress;
sendSocket.bind(sourceAddress, PORT);
sendSocket.writeDatagram(np.serialize(), destAddress, PORT);
sendSocket.close();
}
}
}
}
#else
mUdpSocket.writeDatagram(np.serialize(), destAddress, PORT);
#endif
}
//I'm in a new network, let's be polite and introduce myself
void LanLinkProvider::onNetworkChange()
{
if (!mTcpServer->isListening()) {
//Not started
return;
}
Q_ASSERT(mTcpPort != 0);
qCDebug(KDECONNECT_CORE()) << "Broadcasting identity packet";
NetworkPackage np("");
NetworkPackage::createIdentityPackage(&np);
np.set("tcpPort", mTcpPort);
mUdpSocket.writeDatagram(np.serialize(), QHostAddress("255.255.255.255"), port);
}
