testcase for wifi bridging

examples/wifi-wired-bridging.cc

@@ -0,0 +1,159 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+
+#include "ns3/core-module.h"
+#include "ns3/simulator-module.h"
+#include "ns3/mobility-module.h"
+#include "ns3/helper-module.h"
+#include "ns3/wifi-module.h"
+#include "ns3/node-module.h"
+#include "ns3/global-route-manager.h"
+#include <vector>
+#include <stdint.h>
+#include <sstream>
+
+using namespace ns3;
+
+Ptr<WifiChannel>
+CreateChannel (void)
+{
+  Ptr<WifiChannel> channel = CreateObject<WifiChannel> ();
+  channel->SetPropagationDelayModel (CreateObject<ConstantSpeedPropagationDelayModel> ());
+  Ptr<LogDistancePropagationLossModel> log = CreateObject<LogDistancePropagationLossModel> ();
+  log->SetReferenceModel (CreateObject<FriisPropagationLossModel> ());
+  channel->SetPropagationLossModel (log);
+  return channel;
+}
+
+int main (int argc, char *argv[])
+{
+  uint32_t nWifis = 2;
+  uint32_t nStas = 2;
+  bool sendIp = true;
+  CommandLine cmd;
+  cmd.AddValue ("nWifis", "Number of wifi networks", nWifis);
+  cmd.AddValue ("nStas", "Number of stations per wifi network", nStas);
+  cmd.AddValue ("SendIp", "Send Ipv4 or raw packets", sendIp);
+  cmd.Parse (argc, argv);
+
+  NodeContainer backboneNodes;
+  NetDeviceContainer backboneDevices;
+  Ipv4InterfaceContainer backboneInterfaces;
+  std::vector<NodeContainer> staNodes;
+  std::vector<NetDeviceContainer> staDevices;
+  std::vector<NetDeviceContainer> apDevices;
+  std::vector<Ipv4InterfaceContainer> staInterfaces;
+  std::vector<Ipv4InterfaceContainer> apInterfaces;
+
+  InternetStackHelper stack;
+  CsmaHelper csma;
+  Ipv4AddressHelper ip;
+  ip.SetBase ("192.168.0.0", "255.255.255.0");
+
+  backboneNodes.Create (nWifis);
+  stack.Install (backboneNodes);
+
+  backboneDevices = csma.Install (backboneNodes);
+  backboneInterfaces = ip.Assign (backboneDevices);
+
+  double wifiX = 0.0;
+  for (uint32_t i = 0; i < nWifis; ++i)
+    {
+      // calculate ssid for wifi subnetwork
+      std::ostringstream oss;
+      oss << "wifi-default-" << i;
+      Ssid ssid = Ssid (oss.str ());
+
+      NodeContainer sta;
+      NetDeviceContainer staDev;
+      NetDeviceContainer apDev;
+      Ipv4InterfaceContainer staInterface;
+      Ipv4InterfaceContainer apInterface;
+      MobilityHelper mobility;
+      BridgeHelper bridge;
+      WifiHelper wifi;
+      Ptr<WifiChannel> channel;
+
+      sta.Create (nStas);
+      wifi.SetPhy ("ns3::WifiPhy");
+      channel = CreateChannel ();
+      ip.NewNetwork ();
+      mobility.SetPositionAllocator ("ns3::GridPositionAllocator",
+				     "MinX", DoubleValue (wifiX),
+				     "MinY", DoubleValue (0.0),
+				     "DeltaX", DoubleValue (5.0),
+				     "DeltaY", DoubleValue (5.0),
+				     "GridWidth", UintegerValue (1),
+				     "LayoutType", StringValue ("RowFirst"));
+
+
+      // setup the AP.
+      mobility.SetMobilityModel ("ns3::StaticMobilityModel");
+      mobility.Install (backboneNodes.Get (i));
+      wifi.SetMac ("ns3::NqapWifiMac",
+		   "Ssid", SsidValue (ssid),
+		   "BeaconGeneration", BooleanValue (true),
+		   "BeaconInterval", TimeValue (Seconds (2.5)));
+      apDev = wifi.Install (backboneNodes.Get (i), channel);
+      apInterface = ip.Assign (apDev);
+      bridge.Install (backboneNodes.Get (i), NetDeviceContainer (apDev, backboneDevices.Get (i)));
+
+      // setup the STAs
+      stack.Install (sta);
+      mobility.SetMobilityModel ("ns3::RandomWalk2dMobilityModel",
+				 "Mode", StringValue ("Time"),
+				 "Time", StringValue ("2s"),
+				 "Speed", StringValue ("Constant:1.0"),
+				 "Bounds", RectangleValue (Rectangle (wifiX, wifiX+5.0,0.0, (nStas+1)*5.0)));
+      mobility.Install (sta);
+      wifi.SetMac ("ns3::NqstaWifiMac",
+		   "Ssid", SsidValue (ssid),
+		   "ActiveProbing", BooleanValue (false));
+      staDev = wifi.Install (sta, channel);
+      staInterface = ip.Assign (staDev);
+
+      // save everything in containers.
+      staNodes.push_back (sta);
+      apDevices.push_back (apDev);
+      apInterfaces.push_back (apInterface);
+      staDevices.push_back (staDev);
+      staInterfaces.push_back (staInterface);
+
+      wifiX += 20.0;
+    }
+
+  GlobalRouteManager::PopulateRoutingTables ();
+
+  Address dest;
+  std::string protocol;
+  if (sendIp)
+    {
+      dest = InetSocketAddress (staInterfaces[1].GetAddress (1), 1025);
+      protocol = "ns3::UdpSocketFactory";
+    }
+  else
+    {
+      PacketSocketAddress tmp;
+      tmp.SetSingleDevice (staDevices[0].Get (0)->GetIfIndex ());
+      tmp.SetPhysicalAddress (staDevices[1].Get (0)->GetAddress ());
+      tmp.SetProtocol (0x807);
+      dest = tmp;
+      protocol = "ns3::PacketSocketFactory";
+    }
+  OnOffHelper onoff = OnOffHelper (protocol, dest);
+  onoff.SetAttribute ("OnTime", RandomVariableValue (ConstantVariable (1)));
+  onoff.SetAttribute ("OffTime", RandomVariableValue (ConstantVariable (0)));
+  ApplicationContainer apps = onoff.Install (staNodes[0].Get (0));
+  apps.Start (Seconds (0.5));
+  apps.Stop (Seconds (3.0));
+  
+
+  WifiHelper::EnablePcap ("wifi-wire-bridging", staNodes[1].Get (1));
+  WifiHelper::EnablePcap ("wifi-wire-bridging", staNodes[0].Get (0));
+  std::ofstream os;
+  os.open ("wifi-wire-bridging.mob");
+  MobilityHelper::EnableAsciiAll (os);
+
+  Simulator::Stop (Seconds (100.0));
+  Simulator::Run ();
+
+}

examples/wscript

@@ -85,3 +85,8 @@ def build(bld):
     obj.source = 'wifi-ap.cc'
 
     bld.add_subdirs('stats')
+
+    obj = bld.create_ns3_program('wifi-wired-bridging',
+                                 ['core', 'simulator', 'mobility', 'wifi', 
+                                  'csma', 'helper', 'bridge'])
+    obj.source = 'wifi-wired-bridging.cc'