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Windows OpenVPN/OpenVPN+Cloak killswitch feature

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This commit is contained in:
Mykola Baibuz 2023-11-29 22:50:36 +02:00
parent dd233f77fc
commit c3fdd977b1
5 changed files with 105 additions and 8 deletions
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23
client/protocols/openvpnprotocol.cpp
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@ -4,6 +4,7 @@
#include <QRandomGenerator>
#include <QTcpServer>
#include <QTcpSocket>
#include <QNetworkInterface>
#include "logger.h"
#include "openvpnprotocol.h"
@ -53,6 +54,11 @@ void OpenVpnProtocol::stop()
QThread::msleep(10);
m_managementServer.stop();
}
#ifdef Q_OS_WIN
IpcClient::Interface()->disableKillSwitch();
#endif
setConnectionState(Vpn::ConnectionState::Disconnected);
}
@ -85,13 +91,13 @@ void OpenVpnProtocol::killOpenVpnProcess()
void OpenVpnProtocol::readOpenVpnConfiguration(const QJsonObject &configuration)
{
if (configuration.contains(ProtocolProps::key_proto_config_data(Proto::OpenVpn))) {
m_configData = configuration;
QJsonObject jConfig = configuration.value(ProtocolProps::key_proto_config_data(Proto::OpenVpn)).toObject();
m_configFile.open();
m_configFile.write(jConfig.value(config_key::config).toString().toUtf8());
m_configFile.close();
m_configFileName = m_configFile.fileName();
qDebug().noquote() << QString("Set config data") << m_configFileName;
}
}
@ -320,14 +326,25 @@ void OpenVpnProtocol::updateVpnGateway(const QString &line)
// line looks like
// PUSH: Received control message: 'PUSH_REPLY,route 10.8.0.1,topology net30,ping 10,ping-restart
// 120,ifconfig 10.8.0.6 10.8.0.5,peer-id 0,cipher AES-256-GCM'
QStringList params = line.split(",");
for (const QString &l : params) {
if (l.contains("ifconfig")) {
if (l.split(" ").size() == 3) {
m_vpnLocalAddress = l.split(" ").at(1);
m_vpnGateway = l.split(" ").at(2);
#ifdef Q_OS_WIN
QList<QNetworkInterface> netInterfaces = QNetworkInterface::allInterfaces();
for (int i = 0; i < netInterfaces.size(); i++) {
for (int j=0; j < netInterfaces.at(i).addressEntries().size(); j++)
{
if (m_vpnLocalAddress == netInterfaces.at(i).addressEntries().at(j).ip().toString()) {
IpcClient::Interface()->enableKillSwitch(netInterfaces.at(i).index());
m_configData.insert("vpnGateway", m_vpnGateway);
IpcClient::Interface()->enablePeerTraffic(m_configData);
}
}
}
#endif
qDebug() << QString("Set vpn local address %1, gw %2").arg(m_vpnLocalAddress).arg(vpnGateway());
}
}