src/network/kernel/qnetworkinterface_symbian.cpp
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the QtNetwork of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
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    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
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    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 //#define QNETWORKINTERFACE_DEBUG
       
    43 
       
    44 #include "qnetworkinterface.h"
       
    45 #include "qnetworkinterface_p.h"
       
    46 #include "../corelib/kernel/qcore_symbian_p.h"
       
    47 
       
    48 #ifndef QT_NO_NETWORKINTERFACE
       
    49 
       
    50 #include <in_sock.h>
       
    51 #include <in_iface.h>
       
    52 #include <es_sock.h>
       
    53 
       
    54 QT_BEGIN_NAMESPACE
       
    55 
       
    56 
       
    57 static QNetworkInterface::InterfaceFlags convertFlags(const TSoInetInterfaceInfo& aInfo)
       
    58 {
       
    59     QNetworkInterface::InterfaceFlags flags = 0;
       
    60     flags |= (aInfo.iState == EIfUp) ? QNetworkInterface::IsUp : QNetworkInterface::InterfaceFlag(0);
       
    61     // We do not have separate flag for running in Symbian OS
       
    62     flags |= (aInfo.iState == EIfUp) ? QNetworkInterface::IsRunning : QNetworkInterface::InterfaceFlag(0);
       
    63     flags |= (aInfo.iFeatures & KIfCanBroadcast) ? QNetworkInterface::CanBroadcast : QNetworkInterface::InterfaceFlag(0);
       
    64     flags |= (aInfo.iFeatures & KIfIsLoopback) ? QNetworkInterface::IsLoopBack : QNetworkInterface::InterfaceFlag(0);
       
    65     flags |= (aInfo.iFeatures & KIfIsPointToPoint) ? QNetworkInterface::IsPointToPoint : QNetworkInterface::InterfaceFlag(0);
       
    66     flags |= (aInfo.iFeatures & KIfCanMulticast) ? QNetworkInterface::CanMulticast : QNetworkInterface::InterfaceFlag(0);
       
    67     return flags;
       
    68 }
       
    69 
       
    70 static QList<QNetworkInterfacePrivate *> interfaceListing()
       
    71 {
       
    72     TInt err(KErrNone);
       
    73     QList<QNetworkInterfacePrivate *> interfaces;
       
    74 
       
    75     // Connect to Native socket server
       
    76     RSocketServ socketServ;
       
    77     err = socketServ.Connect();
       
    78     if (err)
       
    79         return interfaces;
       
    80 
       
    81     // Open dummy socket for interface queries
       
    82     RSocket socket;
       
    83     err = socket.Open(socketServ, _L("udp"));
       
    84     if (err) {
       
    85         socketServ.Close();
       
    86         return interfaces;
       
    87     }
       
    88 
       
    89     // Ask socket to start enumerating interfaces
       
    90     err =  socket.SetOpt(KSoInetEnumInterfaces, KSolInetIfCtrl);
       
    91     if (err) {
       
    92         socket.Close();
       
    93         socketServ.Close();
       
    94         return interfaces;
       
    95     }
       
    96 
       
    97     int ifindex = 0;
       
    98     TPckgBuf<TSoInetInterfaceInfo> infoPckg;
       
    99     TSoInetInterfaceInfo &info = infoPckg();
       
   100     while (socket.GetOpt(KSoInetNextInterface, KSolInetIfCtrl, infoPckg) == KErrNone) {
       
   101         // Do not include IPv6 addresses because netmask and broadcast address cannot be determined correctly
       
   102         if (info.iName != KNullDesC && info.iAddress.IsV4Mapped()) {
       
   103             TName address;
       
   104             QNetworkAddressEntry entry;
       
   105             QNetworkInterfacePrivate *iface = 0;
       
   106 
       
   107             iface = new QNetworkInterfacePrivate;
       
   108             iface->index = ifindex++;
       
   109             interfaces << iface;
       
   110             iface->name = qt_TDesC2QString(info.iName);
       
   111             iface->flags = convertFlags(info);
       
   112 
       
   113             if (/*info.iFeatures&KIfHasHardwareAddr &&*/ info.iHwAddr.Family() != KAFUnspec) {
       
   114                 for (TInt i = sizeof(SSockAddr); i < sizeof(SSockAddr) + info.iHwAddr.GetUserLen(); i++) {
       
   115                     address.AppendNumFixedWidth(info.iHwAddr[i], EHex, 2);
       
   116                     if ((i + 1) < sizeof(SSockAddr) + info.iHwAddr.GetUserLen())
       
   117                         address.Append(_L(":"));
       
   118                 }
       
   119                 address.UpperCase();
       
   120                 iface->hardwareAddress = qt_TDesC2QString(address);
       
   121             }
       
   122 
       
   123             // Get the address of the interface
       
   124             info.iAddress.Output(address);
       
   125             entry.setIp(QHostAddress(qt_TDesC2QString(address)));
       
   126 
       
   127             // Get the interface netmask
       
   128             // For some reason netmask is always 0.0.0.0
       
   129             // info.iNetMask.Output(address);
       
   130             // entry.setNetmask( QHostAddress( qt_TDesC2QString( address ) ) );
       
   131 
       
   132             // Workaround: Let Symbian determine netmask based on IP address class
       
   133             // TODO: Works only for IPv4 - Task: 259128 Implement IPv6 support
       
   134             TInetAddr netmask;
       
   135             netmask.NetMask(info.iAddress);
       
   136             netmask.Output(address);
       
   137             entry.setNetmask(QHostAddress(qt_TDesC2QString(address)));
       
   138 
       
   139             // Get the interface broadcast address
       
   140             if (iface->flags & QNetworkInterface::CanBroadcast) {
       
   141                 // For some reason broadcast address is always 0.0.0.0
       
   142                 // info.iBrdAddr.Output(address);
       
   143                 // entry.setBroadcast( QHostAddress( qt_TDesC2QString( address ) ) );
       
   144 
       
   145                 // Workaround: Let Symbian determine broadcast address based on IP address
       
   146                 // TODO: Works only for IPv4 - Task: 259128 Implement IPv6 support
       
   147                 TInetAddr broadcast;
       
   148                 broadcast.NetBroadcast(info.iAddress);
       
   149                 broadcast.Output(address);
       
   150                 entry.setBroadcast(QHostAddress(qt_TDesC2QString(address)));
       
   151             }
       
   152 
       
   153             // Add new entry to interface address entries
       
   154             iface->addressEntries << entry;
       
   155 
       
   156 #if defined(QNETWORKINTERFACE_DEBUG)
       
   157             printf("\n       Found network interface %s, interface flags:\n\
       
   158                 IsUp = %d, IsRunning = %d, CanBroadcast = %d,\n\
       
   159                 IsLoopBack = %d, IsPointToPoint = %d, CanMulticast = %d, \n\
       
   160                 ip = %s, netmask = %s, broadcast = %s,\n\
       
   161                 hwaddress = %s",
       
   162                    iface->name.toLatin1().constData(),
       
   163                    iface->flags & QNetworkInterface::IsUp, iface->flags & QNetworkInterface::IsRunning, iface->flags & QNetworkInterface::CanBroadcast,
       
   164                    iface->flags & QNetworkInterface::IsLoopBack, iface->flags & QNetworkInterface::IsPointToPoint, iface->flags & QNetworkInterface::CanMulticast,
       
   165                    entry.ip().toString().toLatin1().constData(), entry.netmask().toString().toLatin1().constData(), entry.broadcast().toString().toLatin1().constData(),
       
   166                    iface->hardwareAddress.toLatin1().constData());
       
   167 #endif
       
   168         }
       
   169     }
       
   170 
       
   171     // we will try to use routing info to detect more precisely
       
   172     // netmask and then ::postProcess() should calculate
       
   173     // broadcast addresses
       
   174 
       
   175     // use dummy socket to start enumerating routes
       
   176     err =  socket.SetOpt(KSoInetEnumRoutes, KSolInetRtCtrl);
       
   177     if (err) {
       
   178         socket.Close();
       
   179         socketServ.Close();
       
   180         // return what we have
       
   181         // up to this moment
       
   182         return interfaces;
       
   183     }
       
   184 
       
   185     TSoInetRouteInfo routeInfo;
       
   186     TPckg<TSoInetRouteInfo> routeInfoPkg(routeInfo);
       
   187     while (socket.GetOpt(KSoInetNextRoute, KSolInetRtCtrl, routeInfoPkg) == KErrNone) {
       
   188         TName address;
       
   189 
       
   190         // get interface address
       
   191         routeInfo.iIfAddr.Output(address);
       
   192         QHostAddress ifAddr(qt_TDesC2QString(address));
       
   193         if (ifAddr.isNull())
       
   194             continue;
       
   195 
       
   196         routeInfo.iDstAddr.Output(address);
       
   197         QHostAddress destination(qt_TDesC2QString(address));
       
   198         if (destination.isNull() || destination != ifAddr)
       
   199             continue;
       
   200 
       
   201         // search interfaces
       
   202         for (int ifindex = 0; ifindex < interfaces.size(); ++ifindex) {
       
   203             QNetworkInterfacePrivate *iface = interfaces.at(ifindex);
       
   204             for (int eindex = 0; eindex < iface->addressEntries.size(); ++eindex) {
       
   205                 QNetworkAddressEntry entry = iface->addressEntries.at(eindex);
       
   206                 if (entry.ip() != ifAddr) {
       
   207                     continue;
       
   208                 } else if (entry.ip().protocol() != QAbstractSocket::IPv4Protocol) {
       
   209                     // skip if not IPv4 address (e.g. IPv6)
       
   210                     // as results not reliable on Symbian
       
   211                     continue;
       
   212                 } else {
       
   213                     routeInfo.iNetMask.Output(address);
       
   214                     QHostAddress netmask(qt_TDesC2QString(address));
       
   215                     entry.setNetmask(netmask);
       
   216                     // NULL boradcast address for
       
   217                     // ::postProcess to have effect
       
   218                     entry.setBroadcast(QHostAddress());
       
   219                     iface->addressEntries.replace(eindex, entry);
       
   220                 }
       
   221             }
       
   222         }
       
   223     }
       
   224 
       
   225     socket.Close();
       
   226     socketServ.Close();
       
   227 
       
   228     return interfaces;
       
   229 }
       
   230 
       
   231 QList<QNetworkInterfacePrivate *> QNetworkInterfaceManager::scan()
       
   232 {
       
   233     return interfaceListing();
       
   234 }
       
   235 
       
   236 QT_END_NAMESPACE
       
   237 
       
   238 #endif // QT_NO_NETWORKINTERFACE