Attachment #1772 for bug #1845

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Ipv4FlowClassifier::Classify (const Ipv4Header &ipHeader, Ptr<const Packet> ipPayload,
                              uint32_t *out_flowId, uint32_t *out_packetId)
{
  if (ipHeader.GetDestination () == Ipv4Address::GetBroadcast ())
    {
      // we are not prepared to handle broadcast yet
      return false;
    }

  if (ipHeader.GetFragmentOffset () > 0 )
    {
      // Ignore fragments: they don't carry a valid L4 header




{
  NS_LOG_FUNCTION (this << node->GetId ());

  m_ipv4 = node->GetObject<Ipv4L3Protocol> ();

  if (!m_ipv4->TraceConnectWithoutContext ("SendOutgoing",
                                           MakeCallback (&Ipv4FlowProbe::SendOutgoingLogger, Ptr<Ipv4FlowProbe> (this))))
    {
      NS_FATAL_ERROR ("trace fail");
    }
  if (!m_ipv4->TraceConnectWithoutContext ("UnicastForward",
                                           MakeCallback (&Ipv4FlowProbe::ForwardLogger, Ptr<Ipv4FlowProbe> (this))))
    {
      NS_FATAL_ERROR ("trace fail");
    }
  if (!m_ipv4->TraceConnectWithoutContext ("LocalDeliver",
                                           MakeCallback (&Ipv4FlowProbe::ForwardUpLogger, Ptr<Ipv4FlowProbe> (this))))
    {
      NS_FATAL_ERROR ("trace fail");
    }

  if (!m_ipv4->TraceConnectWithoutContext ("Drop",
                                           MakeCallback (&Ipv4FlowProbe::DropLogger, Ptr<Ipv4FlowProbe> (this))))
    {
      NS_FATAL_ERROR ("trace fail");
    }

void
Ipv4FlowProbe::DoDispose ()
{
  m_ipv4 = 0;
  m_classifier = 0;
  FlowProbe::DoDispose ();
}


  FlowId flowId;
  FlowPacketId packetId;

  if (!m_ipv4->IsUnicast(ipHeader.GetDestination ()))
    {
      // we are not prepared to handle broadcast yet
      return;
    }

  if (m_classifier->Classify (ipHeader, ipPayload, &flowId, &packetId))
    {
      uint32_t size = (ipPayload->GetSize () + ipHeader.GetSerializedSize ());

(-)a/src/flow-monitor/model/ipv4-flow-probe.h (+1 lines)

Lines 106-111	Link Here

106

  void QueueDropLogger (Ptr<const Packet> ipPayload);

106

  void QueueDropLogger (Ptr<const Packet> ipPayload);

107

108

  Ptr<Ipv4FlowClassifier> m_classifier; //!< the Ipv4FlowClassifier this probe is associated with

108

  Ptr<Ipv4FlowClassifier> m_classifier; //!< the Ipv4FlowClassifier this probe is associated with

109

  Ptr<Ipv4L3Protocol> m_ipv4; //!< the Ipv4L3Protocol this probe is bound to

109

};

110

};

110

111

112




}

bool
Ipv4L3Protocol::IsUnicast (Ipv4Address ad) const
{
  NS_LOG_FUNCTION (this << ad);

  if (ad.IsBroadcast () || ad.IsMulticast ())
    {
      return false;
    }
  else
    {
      // check for subnet-broadcast
      for (uint32_t ifaceIndex = 0; ifaceIndex < GetNInterfaces (); ifaceIndex++)
        {
          for (uint32_t j = 0; j < GetNAddresses (ifaceIndex); j++)
            {
              Ipv4InterfaceAddress ifAddr = GetAddress (ifaceIndex, j);
              NS_LOG_LOGIC ("Testing address " << ad << " with mask " << ifAddr.GetMask ());
              if (ad.IsSubnetDirectedBroadcast (ifAddr.GetMask ()) )
                {
                  return false;
                }
            }
        }
    }

  return true;
}

bool
Ipv4L3Protocol::IsUnicast (Ipv4Address ad, Ipv4Mask interfaceMask) const
{
  NS_LOG_FUNCTION (this << ad << interfaceMask);





  Ptr<NetDevice> GetNetDevice (uint32_t i);

  /**
   * \brief Check if an IPv4 address is unicast according to the node.
   *
   * This function checks all the node's interfaces and the respective subnet masks.
   * An address is considered unicast if it's not broadcast, subnet-broadcast or multicast.
   *
   * \param ad address
   *
   * \return true if the address is unicast
   */
  bool IsUnicast (Ipv4Address ad) const;

protected:

  virtual void DoDispose (void);

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