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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtNetwork of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
//#define QNETWORKINTERFACE_DEBUG
#include "qnetworkinterface.h"
#include "qnetworkinterface_p.h"
#include <private/qcore_symbian_p.h>
#ifndef QT_NO_NETWORKINTERFACE
#include <in_sock.h>
#include <in_iface.h>
#include <es_sock.h>
QT_BEGIN_NAMESPACE
static QNetworkInterface::InterfaceFlags convertFlags(const TSoInetInterfaceInfo& aInfo)
{
QNetworkInterface::InterfaceFlags flags = 0;
flags |= (aInfo.iState == EIfUp) ? QNetworkInterface::IsUp : QNetworkInterface::InterfaceFlag(0);
// We do not have separate flag for running in Symbian OS
flags |= (aInfo.iState == EIfUp) ? QNetworkInterface::IsRunning : QNetworkInterface::InterfaceFlag(0);
flags |= (aInfo.iFeatures & KIfCanBroadcast) ? QNetworkInterface::CanBroadcast : QNetworkInterface::InterfaceFlag(0);
flags |= (aInfo.iFeatures & KIfIsLoopback) ? QNetworkInterface::IsLoopBack : QNetworkInterface::InterfaceFlag(0);
flags |= (aInfo.iFeatures & KIfIsPointToPoint) ? QNetworkInterface::IsPointToPoint : QNetworkInterface::InterfaceFlag(0);
flags |= (aInfo.iFeatures & KIfCanMulticast) ? QNetworkInterface::CanMulticast : QNetworkInterface::InterfaceFlag(0);
return flags;
}
//TODO: share this, at least QHostInfo needs to do the same thing
static QHostAddress qt_QHostAddressFromTInetAddr(const TInetAddr& addr)
{
//TODO: do we want to call v4 mapped addresses v4 or v6 outside of this file?
if (addr.IsV4Mapped() || addr.Family() == KAfInet) {
//convert v4 host address
return QHostAddress(addr.Address());
} else {
//convert v6 host address
return QHostAddress((quint8 *)(addr.Ip6Address().u.iAddr8));
}
}
static QList<QNetworkInterfacePrivate *> interfaceListing()
{
TInt err(KErrNone);
QList<QNetworkInterfacePrivate *> interfaces;
QList<QHostAddress> addressesWithEstimatedNetmasks;
// Open dummy socket for interface queries
RSocket socket;
err = socket.Open(qt_symbianGetSocketServer(), _L("udp"));
if (err) {
return interfaces;
}
// Ask socket to start enumerating interfaces
err = socket.SetOpt(KSoInetEnumInterfaces, KSolInetIfCtrl);
if (err) {
socket.Close();
return interfaces;
}
int ifindex = 0;
TPckgBuf<TSoInetInterfaceInfo> infoPckg;
TSoInetInterfaceInfo &info = infoPckg();
while (socket.GetOpt(KSoInetNextInterface, KSolInetIfCtrl, infoPckg) == KErrNone) {
if (info.iName != KNullDesC) {
TName address;
QNetworkAddressEntry entry;
QNetworkInterfacePrivate *iface = 0;
iface = new QNetworkInterfacePrivate;
iface->index = ifindex++;
interfaces << iface;
iface->name = qt_TDesC2QString(info.iName);
iface->flags = convertFlags(info);
if (/*info.iFeatures&KIfHasHardwareAddr &&*/ info.iHwAddr.Family() != KAFUnspec) {
for (TInt i = sizeof(SSockAddr); i < sizeof(SSockAddr) + info.iHwAddr.GetUserLen(); i++) {
address.AppendNumFixedWidth(info.iHwAddr[i], EHex, 2);
if ((i + 1) < sizeof(SSockAddr) + info.iHwAddr.GetUserLen())
address.Append(_L(":"));
}
address.UpperCase();
iface->hardwareAddress = qt_TDesC2QString(address);
}
// Get the address of the interface
entry.setIp(qt_QHostAddressFromTInetAddr(info.iAddress));
#if defined(QNETWORKINTERFACE_DEBUG)
qDebug() << "address is" << info.iAddress.Family() << entry.ip();
qDebug() << "netmask is" << info.iNetMask.Family() << qt_QHostAddressFromTInetAddr( info.iNetMask );
#endif
// Get the interface netmask
if (info.iNetMask.IsUnspecified()) {
// For some reason netmask is always 0.0.0.0 for IPv4 interfaces
// and loopback interfaces (which we statically know)
if (info.iAddress.IsV4Mapped()) {
if (info.iFeatures & KIfIsLoopback) {
entry.setPrefixLength(32);
} else {
// Workaround: Let Symbian determine netmask based on IP address class (IPv4 only API)
TInetAddr netmask;
netmask.NetMask(info.iAddress);
entry.setNetmask(QHostAddress(netmask.Address())); //binary convert v4 address
addressesWithEstimatedNetmasks << entry.ip();
#if defined(QNETWORKINTERFACE_DEBUG)
qDebug() << "address class determined netmask" << entry.netmask();
#endif
}
} else {
// For IPv6 interfaces
if (info.iFeatures & KIfIsLoopback) {
entry.setPrefixLength(128);
} else if (info.iNetMask.IsUnspecified()) {
//Don't see this error for IPv6, but try to handle it if it happens
entry.setPrefixLength(64); //most common
#if defined(QNETWORKINTERFACE_DEBUG)
qDebug() << "total guess netmask" << entry.netmask();
#endif
addressesWithEstimatedNetmasks << entry.ip();
}
}
} else {
//Expected code path for IPv6 non loopback interfaces (IPv4 could come here if symbian is fixed)
entry.setNetmask(qt_QHostAddressFromTInetAddr(info.iNetMask));
#if defined(QNETWORKINTERFACE_DEBUG)
qDebug() << "reported netmask" << entry.netmask();
#endif
}
// broadcast address is determined from the netmask in postProcess()
// Add new entry to interface address entries
iface->addressEntries << entry;
#if defined(QNETWORKINTERFACE_DEBUG)
qDebug("\n Found network interface %s, interface flags:\n\
IsUp = %d, IsRunning = %d, CanBroadcast = %d,\n\
IsLoopBack = %d, IsPointToPoint = %d, CanMulticast = %d, \n\
ip = %s, netmask = %s, broadcast = %s,\n\
hwaddress = %s",
iface->name.toLatin1().constData(),
iface->flags & QNetworkInterface::IsUp, iface->flags & QNetworkInterface::IsRunning, iface->flags & QNetworkInterface::CanBroadcast,
iface->flags & QNetworkInterface::IsLoopBack, iface->flags & QNetworkInterface::IsPointToPoint, iface->flags & QNetworkInterface::CanMulticast,
entry.ip().toString().toLatin1().constData(), entry.netmask().toString().toLatin1().constData(), entry.broadcast().toString().toLatin1().constData(),
iface->hardwareAddress.toLatin1().constData());
#endif
}
}
// if we didn't have to guess any netmasks, then we're done.
if (addressesWithEstimatedNetmasks.isEmpty()) {
socket.Close();
return interfaces;
}
// we will try to use routing info to detect more precisely
// estimated netmasks and then ::postProcess() should calculate
// broadcast addresses
// use dummy socket to start enumerating routes
err = socket.SetOpt(KSoInetEnumRoutes, KSolInetRtCtrl);
if (err) {
socket.Close();
// return what we have
// up to this moment
return interfaces;
}
TSoInetRouteInfo routeInfo;
TPckg<TSoInetRouteInfo> routeInfoPkg(routeInfo);
while (socket.GetOpt(KSoInetNextRoute, KSolInetRtCtrl, routeInfoPkg) == KErrNone) {
// get interface address
QHostAddress ifAddr(qt_QHostAddressFromTInetAddr(routeInfo.iIfAddr));
if (ifAddr.isNull())
continue;
if (!addressesWithEstimatedNetmasks.contains(ifAddr)) {
#if defined(QNETWORKINTERFACE_DEBUG)
qDebug() << "skipping route from" << ifAddr << "because it wasn't an estimated netmask";
#endif
continue;
}
QHostAddress destination(qt_QHostAddressFromTInetAddr(routeInfo.iDstAddr));
#if defined(QNETWORKINTERFACE_DEBUG)
qDebug() << "route from" << ifAddr << "to" << destination;
#endif
if (destination.isNull() || destination != ifAddr)
continue;
// search interfaces
for (int ifindex = 0; ifindex < interfaces.size(); ++ifindex) {
QNetworkInterfacePrivate *iface = interfaces.at(ifindex);
for (int eindex = 0; eindex < iface->addressEntries.size(); ++eindex) {
QNetworkAddressEntry entry = iface->addressEntries.at(eindex);
if (entry.ip() != ifAddr) {
continue;
} else if (!routeInfo.iNetMask.IsUnspecified()) {
//the route may also return 0.0.0.0 netmask, in which case don't use it.
QHostAddress netmask(qt_QHostAddressFromTInetAddr(routeInfo.iNetMask));
entry.setNetmask(netmask);
#if defined(QNETWORKINTERFACE_DEBUG)
qDebug() << " - route netmask" << routeInfo.iNetMask.Family() << netmask << " (using route determined netmask)";
#endif
iface->addressEntries.replace(eindex, entry);
}
}
}
}
socket.Close();
return interfaces;
}
QList<QNetworkInterfacePrivate *> QNetworkInterfaceManager::scan()
{
return interfaceListing();
}
QT_END_NAMESPACE
#endif // QT_NO_NETWORKINTERFACE
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