1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/examples/tap-net-device.cc	Sat May 30 17:36:50 2009 +0100
     1.3 @@ -0,0 +1,278 @@
     1.4 +/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
     1.5 +/*
     1.6 + * This program is free software; you can redistribute it and/or modify
     1.7 + * it under the terms of the GNU General Public License version 2 as
     1.8 + * published by the Free Software Foundation;
     1.9 + *
    1.10 + * This program is distributed in the hope that it will be useful,
    1.11 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.12 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    1.13 + * GNU General Public License for more details.
    1.14 + *
    1.15 + * You should have received a copy of the GNU General Public License
    1.16 + * along with this program; if not, write to the Free Software
    1.17 + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    1.18 + *
    1.19 + * Based on simple-global-routing.cc
    1.20 + * ns-2 simple.tcl script (ported from ns-2)
    1.21 + * Originally authored by Steve McCanne, 12/19/1996
    1.22 + */
    1.23 +
    1.24 +// Port of ns-2/tcl/ex/simple.tcl to ns-3
    1.25 +//
    1.26 +// Network topology
    1.27 +//
    1.28 +//  n0
    1.29 +//     \ 5 Mb/s, 2ms
    1.30 +//      \          1.5Mb/s, 10ms
    1.31 +//       n2 -------------------------n3
    1.32 +//      /
    1.33 +//     / 5 Mb/s, 2ms
    1.34 +//   n1
    1.35 +//
    1.36 +// - all links are point-to-point links with indicated one-way BW/delay
    1.37 +// - CBR/UDP flows from n0 to n3, and from n3 to n1
    1.38 +// - FTP/TCP flow from n0 to n3, starting at time 1.2 to time 1.35 sec.
    1.39 +// - UDP packet size of 210 bytes, with per-packet interval 0.00375 sec.
    1.40 +//   (i.e., DataRate of 448,000 bps)
    1.41 +// - DropTail queues 
    1.42 +// - Tracing of queues and packet receptions to file "simple-global-routing.tr"
    1.43 +
    1.44 +// Tunneling changes (relative to the simple-global-routing example):
    1.45 +// n0 will receive an extra virtual interface with address 11.0.0.1
    1.46 +// n1 will also receive an extra virtual interface with the same address 11.0.0.1
    1.47 +// n3 will receive an extra virtual interface with address 11.0.0.254
    1.48 +// The flows will be between 11.0.0.x (tunnel) addresses instead of 10.1.x.y ones
    1.49 +// n3 will decide, on a per-packet basis, via random number, whether to
    1.50 +// send the packet to n0 or to n1.
    1.51 +
    1.52 +#include <iostream>
    1.53 +#include <fstream>
    1.54 +#include <string>
    1.55 +#include <cassert>
    1.56 +
    1.57 +#include "ns3/core-module.h"
    1.58 +#include "ns3/simulator-module.h"
    1.59 +#include "ns3/node-module.h"
    1.60 +#include "ns3/helper-module.h"
    1.61 +#include "ns3/global-route-manager.h"
    1.62 +#include "ns3/tap-net-device.h"
    1.63 +
    1.64 +using namespace ns3;
    1.65 +
    1.66 +NS_LOG_COMPONENT_DEFINE ("TapNetDeviceExample");
    1.67 +
    1.68 +class Tunnel
    1.69 +{
    1.70 +  Ptr<Socket> m_n3Socket;
    1.71 +  Ptr<Socket> m_n0Socket;
    1.72 +  Ptr<Socket> m_n1Socket;
    1.73 +  Ipv4Address m_n3Address;
    1.74 +  Ipv4Address m_n0Address;
    1.75 +  Ipv4Address m_n1Address;
    1.76 +  UniformVariable m_rng;
    1.77 +  Ptr<TapNetDevice> m_n0Tap;
    1.78 +  Ptr<TapNetDevice> m_n1Tap;
    1.79 +  Ptr<TapNetDevice> m_n3Tap;
    1.80 +  
    1.81 +  
    1.82 +  bool
    1.83 +  N0N1VirtualSend (Ptr<Packet> packet, const Address& source, const Address& dest, uint16_t protocolNumber)
    1.84 +  {
    1.85 +    m_n3Socket->SendTo (packet, 0, InetSocketAddress (m_n3Address, 667));
    1.86 +    return true;
    1.87 +  }
    1.88 +
    1.89 +  bool
    1.90 +  N3VirtualSend (Ptr<Packet> packet, const Address& source, const Address& dest, uint16_t protocolNumber)
    1.91 +  {
    1.92 +    
    1.93 +    if (m_rng.GetValue () < 0.25)
    1.94 +      {
    1.95 +        m_n0Socket->SendTo (packet, 0, InetSocketAddress (m_n0Address, 667));
    1.96 +      }
    1.97 +    else 
    1.98 +      {
    1.99 +        m_n1Socket->SendTo (packet, 0, InetSocketAddress (m_n1Address, 667));
   1.100 +      }
   1.101 +    return true;
   1.102 +  }
   1.103 +
   1.104 +  void N3SocketRecv (Ptr<Socket> socket)
   1.105 +  {
   1.106 +    Ptr<Packet> packet = socket->Recv (65535, 0);
   1.107 +    m_n3Tap->Receive (packet, 0x0800, Address ());
   1.108 +  }
   1.109 +
   1.110 +  void N0SocketRecv (Ptr<Socket> socket)
   1.111 +  {
   1.112 +    Ptr<Packet> packet = socket->Recv (65535, 0);
   1.113 +    m_n0Tap->Receive (packet, 0x0800, Address ());
   1.114 +  }
   1.115 +
   1.116 +  void N1SocketRecv (Ptr<Socket> socket)
   1.117 +  {
   1.118 +    Ptr<Packet> packet = socket->Recv (65535, 0);
   1.119 +    m_n0Tap->Receive (packet, 0x0800, Address ());
   1.120 +  }
   1.121 +
   1.122 +public:
   1.123 +  
   1.124 +  Tunnel (Ptr<Node> n3, Ptr<Node> n0, Ptr<Node> n1,
   1.125 +          Ipv4Address n3Addr, Ipv4Address n0Addr, Ipv4Address n1Addr)
   1.126 +    : m_n3Address (n3Addr), m_n0Address (n0Addr), m_n1Address (n1Addr)
   1.127 +  {
   1.128 +    m_n3Socket = Socket::CreateSocket (n3, TypeId::LookupByName ("ns3::UdpSocketFactory"));
   1.129 +    m_n3Socket->Bind (InetSocketAddress (Ipv4Address::GetAny (), 667));
   1.130 +    m_n3Socket->SetRecvCallback (MakeCallback (&Tunnel::N3SocketRecv, this));    
   1.131 +    
   1.132 +    m_n0Socket = Socket::CreateSocket (n0, TypeId::LookupByName ("ns3::UdpSocketFactory"));
   1.133 +    m_n0Socket->Bind (InetSocketAddress (Ipv4Address::GetAny (), 667));
   1.134 +    m_n0Socket->SetRecvCallback (MakeCallback (&Tunnel::N0SocketRecv, this));    
   1.135 +    
   1.136 +    m_n1Socket = Socket::CreateSocket (n1, TypeId::LookupByName ("ns3::UdpSocketFactory"));
   1.137 +    m_n1Socket->Bind (InetSocketAddress (Ipv4Address::GetAny (), 667));
   1.138 +    m_n1Socket->SetRecvCallback (MakeCallback (&Tunnel::N1SocketRecv, this));
   1.139 +    
   1.140 +    // n0 tap device
   1.141 +    m_n0Tap = CreateObject<TapNetDevice> ();
   1.142 +    m_n0Tap->SetSendFromCallback (MakeCallback (&Tunnel::N0N1VirtualSend, this));
   1.143 +    n0->AddDevice (m_n0Tap);
   1.144 +    Ptr<Ipv4> ipv4 = n0->GetObject<Ipv4> ();
   1.145 +    uint32_t i = ipv4->AddInterface (m_n0Tap);
   1.146 +    ipv4->AddAddress (i, Ipv4InterfaceAddress (Ipv4Address ("11.0.0.1"), Ipv4Mask ("255.255.255.0")));
   1.147 +    ipv4->SetUp (i);
   1.148 +    
   1.149 +    // n1 tap device
   1.150 +    m_n1Tap = CreateObject<TapNetDevice> ();
   1.151 +    m_n1Tap->SetSendFromCallback (MakeCallback (&Tunnel::N0N1VirtualSend, this));
   1.152 +    n1->AddDevice (m_n1Tap);
   1.153 +    ipv4 = n1->GetObject<Ipv4> ();
   1.154 +    i = ipv4->AddInterface (m_n1Tap);
   1.155 +    ipv4->AddAddress (i, Ipv4InterfaceAddress (Ipv4Address ("11.0.0.1"), Ipv4Mask ("255.255.255.0")));
   1.156 +    ipv4->SetUp (i);
   1.157 +
   1.158 +    // n3 tap device
   1.159 +    m_n3Tap = CreateObject<TapNetDevice> ();
   1.160 +    m_n3Tap->SetSendFromCallback (MakeCallback (&Tunnel::N3VirtualSend, this));
   1.161 +    n3->AddDevice (m_n3Tap);
   1.162 +    ipv4 = n3->GetObject<Ipv4> ();
   1.163 +    i = ipv4->AddInterface (m_n3Tap);
   1.164 +    ipv4->AddAddress (i, Ipv4InterfaceAddress (Ipv4Address ("11.0.0.254"), Ipv4Mask ("255.255.255.0")));
   1.165 +    ipv4->SetUp (i);
   1.166 +    
   1.167 +  }
   1.168 +  
   1.169 +  
   1.170 +};
   1.171 +
   1.172 +  
   1.173 +
   1.174 +int 
   1.175 +main (int argc, char *argv[])
   1.176 +{
   1.177 +  // Users may find it convenient to turn on explicit debugging
   1.178 +  // for selected modules; the below lines suggest how to do this
   1.179 +#if 0 
   1.180 +  LogComponentEnable ("SimpleGlobalRoutingExample", LOG_LEVEL_INFO);
   1.181 +#endif
   1.182 +
   1.183 +  // Set up some default values for the simulation.  Use the 
   1.184 +  Config::SetDefault ("ns3::OnOffApplication::PacketSize", UintegerValue (210));
   1.185 +  Config::SetDefault ("ns3::OnOffApplication::DataRate", StringValue ("448kb/s"));
   1.186 +
   1.187 +  //DefaultValue::Bind ("DropTailQueue::m_maxPackets", 30);   
   1.188 +
   1.189 +  // Allow the user to override any of the defaults and the above
   1.190 +  // DefaultValue::Bind ()s at run-time, via command-line arguments
   1.191 +  CommandLine cmd;
   1.192 +  cmd.Parse (argc, argv);
   1.193 +
   1.194 +  // Here, we will explicitly create four nodes.  In more sophisticated
   1.195 +  // topologies, we could configure a node factory.
   1.196 +  NS_LOG_INFO ("Create nodes.");
   1.197 +  NodeContainer c;
   1.198 +  c.Create (4);
   1.199 +  NodeContainer n0n2 = NodeContainer (c.Get(0), c.Get (2));
   1.200 +  NodeContainer n1n2 = NodeContainer (c.Get(1), c.Get (2));
   1.201 +  NodeContainer n3n2 = NodeContainer (c.Get(3), c.Get (2));
   1.202 +
   1.203 +  InternetStackHelper internet;
   1.204 +  internet.Install (c);
   1.205 +
   1.206 +  // We create the channels first without any IP addressing information
   1.207 +  NS_LOG_INFO ("Create channels.");
   1.208 +  PointToPointHelper p2p;
   1.209 +  p2p.SetDeviceAttribute ("DataRate", StringValue ("5Mbps"));
   1.210 +  p2p.SetChannelAttribute ("Delay", StringValue ("2ms"));
   1.211 +  NetDeviceContainer d0d2 = p2p.Install (n0n2);
   1.212 +
   1.213 +  NetDeviceContainer d1d2 = p2p.Install (n1n2);
   1.214 +  
   1.215 +  p2p.SetDeviceAttribute ("DataRate", StringValue ("1500kbps"));
   1.216 +  p2p.SetChannelAttribute ("Delay", StringValue ("10ms"));
   1.217 +  NetDeviceContainer d3d2 = p2p.Install (n3n2);
   1.218 +  
   1.219 +  // Later, we add IP addresses.  
   1.220 +  NS_LOG_INFO ("Assign IP Addresses.");
   1.221 +  Ipv4AddressHelper ipv4;
   1.222 +  ipv4.SetBase ("10.1.1.0", "255.255.255.0");
   1.223 +  Ipv4InterfaceContainer i0i2 = ipv4.Assign (d0d2);
   1.224 +
   1.225 +  ipv4.SetBase ("10.1.2.0", "255.255.255.0");
   1.226 +  Ipv4InterfaceContainer i1i2 = ipv4.Assign (d1d2);
   1.227 +  
   1.228 +  ipv4.SetBase ("10.1.3.0", "255.255.255.0");
   1.229 +  Ipv4InterfaceContainer i3i2 = ipv4.Assign (d3d2);
   1.230 +
   1.231 +  // Create router nodes, initialize routing database and set up the routing
   1.232 +  // tables in the nodes.
   1.233 +  GlobalRouteManager::PopulateRoutingTables ();
   1.234 +
   1.235 +  // Add the tunnels
   1.236 +  Tunnel tunnel (c.Get (3), c.Get (0), c.Get (1),
   1.237 +                 i3i2.GetAddress (0), i0i2.GetAddress (0), i1i2.GetAddress (0));
   1.238 +
   1.239 +  // Create the OnOff application to send UDP datagrams of size
   1.240 +  // 210 bytes at a rate of 448 Kb/s
   1.241 +  NS_LOG_INFO ("Create Applications.");
   1.242 +  uint16_t port = 9;   // Discard port (RFC 863)
   1.243 +  OnOffHelper onoff ("ns3::UdpSocketFactory", 
   1.244 +                     Address (InetSocketAddress (Ipv4Address ("11.0.0.254"), port)));
   1.245 +  onoff.SetAttribute ("OnTime", RandomVariableValue (ConstantVariable (1)));
   1.246 +  onoff.SetAttribute ("OffTime", RandomVariableValue (ConstantVariable (0)));
   1.247 +  ApplicationContainer apps = onoff.Install (c.Get (0));
   1.248 +  apps.Start (Seconds (1.0));
   1.249 +  apps.Stop (Seconds (10.0));
   1.250 +
   1.251 +  // Create a packet sink to receive these packets
   1.252 +  PacketSinkHelper sink ("ns3::UdpSocketFactory",
   1.253 +    Address (InetSocketAddress (Ipv4Address::GetAny (), port)));
   1.254 +  apps = sink.Install (c.Get (3));
   1.255 +  apps.Start (Seconds (1.0));
   1.256 +  apps.Stop (Seconds (10.0));
   1.257 +
   1.258 +  // Create a similar flow from n3 to n1, starting at time 1.1 seconds
   1.259 +  onoff.SetAttribute ("Remote", 
   1.260 +                      AddressValue (InetSocketAddress (Ipv4Address ("11.0.0.2"), port)));
   1.261 +  apps = onoff.Install (c.Get (3));
   1.262 +  apps.Start (Seconds (1.1));
   1.263 +  apps.Stop (Seconds (10.0));
   1.264 +
   1.265 +  // Create a packet sink to receive these packets
   1.266 +  apps = sink.Install (c.Get (1));
   1.267 +  apps.Start (Seconds (1.1));
   1.268 +  apps.Stop (Seconds (10.0));
   1.269 +
   1.270 +  std::ofstream ascii;
   1.271 +  ascii.open ("tap-net-device.tr");
   1.272 +  PointToPointHelper::EnablePcapAll ("tap-net-device");
   1.273 +  PointToPointHelper::EnableAsciiAll (ascii);
   1.274 +
   1.275 +  NS_LOG_INFO ("Run Simulation.");
   1.276 +  Simulator::Run ();
   1.277 +  Simulator::Destroy ();
   1.278 +  NS_LOG_INFO ("Done.");
   1.279 +
   1.280 +  return 0;
   1.281 +}

     2.1 --- a/examples/wscript	Sat May 30 17:36:29 2009 +0100
     2.2 +++ b/examples/wscript	Sat May 30 17:36:50 2009 +0100
     2.3 @@ -40,6 +40,10 @@
     2.4                                   ['point-to-point', 'internet-stack', 'global-routing'])
     2.5      obj.source = 'simple-global-routing.cc'
     2.6  
     2.7 +    obj = bld.create_ns3_program('tap-net-device',
     2.8 +                                 ['point-to-point', 'internet-stack', 'global-routing', 'tap-net-device'])
     2.9 +    obj.source = 'tap-net-device.cc'
    2.10 +
    2.11      obj = bld.create_ns3_program('simple-alternate-routing',
    2.12                                   ['point-to-point', 'internet-stack', 'global-routing'])
    2.13      obj.source = 'simple-alternate-routing.cc'