81 lines
2.2 KiB
C++
81 lines
2.2 KiB
C++
/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2007 INRIA
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Authors:
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* Mathieu Lacage <mathieu.lacage@sophia.inria.fr>,
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*/
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#include "ns3/packet.h"
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#include "ns3/composite-trace-resolver.h"
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#include "ns3/node.h"
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#include "ns3/net-device.h"
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#include "arp-ipv4-interface.h"
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#include "i-arp-private.h"
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#include "ipv4.h"
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namespace ns3 {
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ArpIpv4Interface::ArpIpv4Interface (Node *node, NetDevice *device)
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: Ipv4Interface (device),
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m_node (node)
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{
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m_node->Ref ();
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}
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ArpIpv4Interface::~ArpIpv4Interface ()
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{
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m_node->Unref ();
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}
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TraceResolver *
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ArpIpv4Interface::DoCreateTraceResolver (TraceContext const &context)
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{
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CompositeTraceResolver *resolver = new CompositeTraceResolver (context);
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if (PeekDevice () != 0)
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{
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resolver->Add ("netdevice",
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MakeCallback (&NetDevice::CreateTraceResolver, PeekDevice ()),
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ArpIpv4Interface::NETDEVICE);
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}
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return resolver;
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}
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void
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ArpIpv4Interface::SendTo (Packet p, Ipv4Address dest)
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{
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NS_ASSERT (PeekDevice () != 0);
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if (PeekDevice ()->NeedsArp ())
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{
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IArpPrivate * arp = m_node->QueryInterface<IArpPrivate> (IArpPrivate::iid);
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MacAddress hardwareDestination;
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bool found = arp->Lookup (p, dest, PeekDevice (), &hardwareDestination);
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if (found)
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{
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PeekDevice ()->Send (p, hardwareDestination, Ipv4::PROT_NUMBER);
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}
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arp->Unref ();
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}
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else
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{
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PeekDevice ()->Send (p, PeekDevice ()->GetBroadcast (), Ipv4::PROT_NUMBER);
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}
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}
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}//namespace ns3
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