/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */

/*

 * Copyright (c) 2008-2009 Strasbourg University

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation;

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 *

 * Author: Sebastien Vincent <vincent@clarinet.u-strasbg.fr>

 */

// Network topology

//

//       n0    n1

//       |     |

//       =================

//              LAN

//

// - ICMPv6 echo request flows from n0 to n1 and back with ICMPv6 echo reply

// - DropTail queues 

// - Tracing of queues and packet receptions to file "ping6.tr"

#include <fstream>

#include "ns3/core-module.h"

#include "ns3/internet-module.h"

#include "ns3/csma-module.h"

#include "ns3/applications-module.h"

using namespace ns3;

NS_LOG_COMPONENT_DEFINE ("Ping6Example");

int main (int argc, char **argv)

{

  bool verbose = false;

  CommandLine cmd;

  cmd.AddValue ("verbose", "turn on log components", verbose);

  cmd.Parse (argc, argv);

  if (verbose)

    {

      LogComponentEnable ("Ping6Example", LOG_LEVEL_INFO);

      LogComponentEnable ("Ipv6EndPointDemux", LOG_LEVEL_ALL);

      LogComponentEnable ("Ipv6L3Protocol", LOG_LEVEL_ALL);

      LogComponentEnable ("Ipv6StaticRouting", LOG_LEVEL_ALL);

      LogComponentEnable ("Ipv6ListRouting", LOG_LEVEL_ALL);

      LogComponentEnable ("Ipv6Interface", LOG_LEVEL_ALL);

      LogComponentEnable ("Icmpv6L4Protocol", LOG_LEVEL_ALL);

      LogComponentEnable ("Ping6Application", LOG_LEVEL_ALL);

      LogComponentEnable ("NdiscCache", LOG_LEVEL_ALL);

    }

  NS_LOG_INFO ("Create nodes.");

  NodeContainer n;

  n.Create (4);

  /* Install IPv4/IPv6 stack */

  InternetStackHelper internetv6;

  internetv6.SetIpv4StackInstall (false);

  internetv6.Install (n);

  NS_LOG_INFO ("Create channels.");

  CsmaHelper csma;

  csma.SetChannelAttribute ("DataRate", DataRateValue (5000000));

  csma.SetChannelAttribute ("Delay", TimeValue (MilliSeconds (2)));

  NetDeviceContainer d = csma.Install (n);

  Ipv6AddressHelper ipv6;

  NS_LOG_INFO ("Assign IPv6 Addresses.");

  Ipv6InterfaceContainer i = ipv6.Assign (d);

  NS_LOG_INFO ("Create Applications.");

  /* Create a Ping6 application to send ICMPv6 echo request from node zero to

   * all-nodes (ff02::1).

   */

  uint32_t packetSize = 1024;

  uint32_t maxPacketCount = 5;

  Time interPacketInterval = Seconds (1.);

  Ping6Helper ping6;

  /*

     ping6.SetLocal (i.GetAddress (0, 1)); 

     ping6.SetRemote (i.GetAddress (1, 1));

     */

  ping6.SetIfIndex (i.GetInterfaceIndex (0));

  ping6.SetRemote (Ipv6Address::GetAllNodesMulticast ());

  ping6.SetAttribute ("MaxPackets", UintegerValue (maxPacketCount));

  ping6.SetAttribute ("Interval", TimeValue (interPacketInterval));

  ping6.SetAttribute ("PacketSize", UintegerValue (packetSize));

  ApplicationContainer apps = ping6.Install (n.Get (0));

  apps.Start (Seconds (2.0));

  apps.Stop (Seconds (10.0));

  AsciiTraceHelper ascii;

  csma.EnableAsciiAll (ascii.CreateFileStream ("ping6.tr"));

  csma.EnablePcapAll (std::string ("ping6"), true);

  NS_LOG_INFO ("Run Simulation.");

  Simulator::Run ();

  Simulator::Destroy ();

  NS_LOG_INFO ("Done.");

}