/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2014 Universita' di Firenze
 *
 * 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: Tommaso Pecorella <tommaso.pecorella@unifi.it>
 */

// Network topology
//
//       n0              n1
//       |               |
//       =================
//         SimpleChannel
//
// - Packets flows from n0 to n1
//
// This example shows how to use the PacketSocketServer and PacketSocketClient
// to send non-IP packets over a SimpleNetDevice

#include "ns3/core-module.h"
#include "ns3/network-module.h"

using namespace ns3;


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 ("PacketSocketServer", LOG_LEVEL_ALL);
      LogComponentEnable ("PacketSocketClient", LOG_LEVEL_ALL);
      LogComponentEnable ("SimpleNetDevice", LOG_LEVEL_ALL);
    }

  NodeContainer nodes;
  nodes.Create (2);

  ns3::PacketMetadata::Enable();

  PacketSocketHelper packetSocket;

  // give packet socket powers to nodes.
  packetSocket.Install (nodes);

  Ptr<SimpleNetDevice> txDev;
  txDev = CreateObject<SimpleNetDevice> ();
  nodes.Get (0)->AddDevice (txDev);

  Ptr<SimpleNetDevice> rxDev;
  rxDev = CreateObject<SimpleNetDevice> ();
  nodes.Get (1)->AddDevice (rxDev);

  Ptr<SimpleChannel> channel = CreateObject<SimpleChannel> ();
  txDev->SetChannel (channel);
  rxDev->SetChannel (channel);
  txDev->SetNode (nodes.Get (0));
  rxDev->SetNode (nodes.Get (1));


  PacketSocketAddress socketAddr;
  socketAddr.SetSingleDevice (txDev->GetIfIndex ());
  socketAddr.SetPhysicalAddress (rxDev->GetAddress ());
  // Arbitrary protocol type.
  // Note: PacketSocket doesn't have any L4 multiplexing or demultiplexing
  //       The only mux/demux is based on the protocol field
  socketAddr.SetProtocol (1);

  Ptr<PacketSocketClient> client = CreateObject<PacketSocketClient> ();
  client->SetRemote (socketAddr);
  nodes.Get (0)->AddApplication (client);

  Ptr<PacketSocketServer> server = CreateObject<PacketSocketServer> ();
  server->SetLocal (socketAddr);
  nodes.Get (1)->AddApplication (server);

  Simulator::Run ();
  Simulator::Destroy ();
  return 0;
}