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/******************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Debug Bridge.
**
** $QT_BEGIN_LICENSE:COMM$
**
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
******************************************************************************/
#include "handshakeexecutor.h"
#include "configuration.h"
#include "libqdb/stream.h"
#include <QtCore/qdebug.h>
#include <QtCore/qfile.h>
#include <QtCore/qloggingcategory.h>
#include <QtNetwork/qnetworkinterface.h>
Q_LOGGING_CATEGORY(handshakeC, "qdb.executors.handshake");
QString rndisFunctionPath()
{
return Configuration::gadgetConfigFsDir() + "/functions/" + Configuration::rndisFunctionName();
}
QString deviceIpAddress()
{
QFile file{rndisFunctionPath() + "/ifname"};
if (!file.open(QIODevice::ReadOnly)) {
qCCritical(handshakeC) << "Could not find network interface name from RNDIS configuration at" << rndisFunctionPath();
return "";
}
const auto interfaceName = QString{file.readAll()}.trimmed();
const auto interface = QNetworkInterface::interfaceFromName(interfaceName);
const auto addressEntries = interface.addressEntries();
for (const auto &entry : addressEntries) {
const auto ip = entry.ip();
if (ip.protocol() == QAbstractSocket::IPv4Protocol) {
qCDebug(handshakeC) << "Device IP address:" << ip.toString();
return ip.toString();
}
}
return "";
}
QString deviceSerial()
{
QFile file{Configuration::gadgetConfigFsDir() + "/strings/0x409/serialnumber"};
if (!file.open(QIODevice::ReadOnly)) {
qCCritical(handshakeC) << "Could not find device serial number from configfs configuration at" << Configuration::gadgetConfigFsDir();
return "";
}
return QString{file.readAll()}.trimmed();
}
QString hostSideMac()
{
QFile file{rndisFunctionPath() + "/host_addr"};
if (!file.open(QIODevice::ReadOnly)) {
qCCritical(handshakeC) << "Could not find host MAC address from RNDIS configuration at" << rndisFunctionPath();
return "";
}
return QString{file.readAll()}.trimmed();
}
HandshakeExecutor::HandshakeExecutor(Stream *stream)
: m_stream{stream}
{
if (m_stream)
connect(m_stream, &Stream::packetAvailable, this, &Executor::receive);
}
void HandshakeExecutor::receive(StreamPacket packet)
{
Q_UNUSED(packet);
StreamPacket response;
response << deviceSerial();
response << hostSideMac();
response << deviceIpAddress();
m_stream->write(response);
qCDebug(handshakeC) << "Responded to handshake with device information";
}
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