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

/*

 * Copyright (c) 2008 University of Washington

 *

 * 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

 */

#include <string>

#include "ns3/log.h"

#include "ns3/simulator.h"

#include "ns3/object-factory.h"

#include "ns3/names.h"

#include "ns3/queue.h"

#include "ns3/emu-net-device.h"

#include "ns3/pcap-writer.h"

#include "ns3/config.h"

#include "ns3/packet.h"

#include "emu-helper.h"

NS_LOG_COMPONENT_DEFINE ("EmuHelper");

namespace ns3 {

EmuHelper::EmuHelper ()

{

  NS_LOG_FUNCTION_NOARGS ();

  m_queueFactory.SetTypeId ("ns3::DropTailQueue");

  m_deviceFactory.SetTypeId ("ns3::EmuNetDevice");

}

void 

EmuHelper::SetQueue (

  std::string type,

  std::string n1, const AttributeValue &v1,

  std::string n2, const AttributeValue &v2,

  std::string n3, const AttributeValue &v3,

  std::string n4, const AttributeValue &v4)

{

  NS_LOG_FUNCTION_NOARGS ();

  m_queueFactory.SetTypeId (type);

  m_queueFactory.Set (n1, v1);

  m_queueFactory.Set (n2, v2);

  m_queueFactory.Set (n3, v3);

  m_queueFactory.Set (n4, v4);

}

void 

EmuHelper::SetAttribute (std::string n1, const AttributeValue &v1)

{

  NS_LOG_FUNCTION_NOARGS ();

  m_deviceFactory.Set (n1, v1);

}

void 

EmuHelper::EnablePcap (std::string filename, uint32_t nodeid, uint32_t deviceid, bool promiscuous)

{

  NS_LOG_FUNCTION (filename << nodeid << deviceid << promiscuous);

  std::ostringstream oss;

  oss << filename << "-" << nodeid << "-" << deviceid << ".pcap";

  Ptr<PcapWriter> pcap = CreateObject<PcapWriter> ();

  pcap->Open (oss.str ());

  pcap->WriteEthernetHeader ();

  oss.str ("");

  oss << "/NodeList/" << nodeid << "/DeviceList/" << deviceid;

  if (promiscuous)

    {

      oss << "/$ns3::EmuNetDevice/PromiscSniffer";

    }

  else

    {

      oss << "/$ns3::EmuNetDevice/Sniffer";

    }

  Config::ConnectWithoutContext (oss.str (), MakeBoundCallback (&EmuHelper::SniffEvent, pcap));

}

void 

EmuHelper::EnablePcap (std::string filename, Ptr<NetDevice> nd, bool promiscuous)

{

  NS_LOG_FUNCTION (filename << &nd << promiscuous);

  EnablePcap (filename, nd->GetNode ()->GetId (), nd->GetIfIndex (), promiscuous);

}

void 

EmuHelper::EnablePcap (std::string filename, std::string ndName, bool promiscuous)

{

  NS_LOG_FUNCTION (filename << ndName << promiscuous);

  Ptr<NetDevice> nd = Names::Find<NetDevice> (ndName);

  EnablePcap (filename, nd->GetNode ()->GetId (), nd->GetIfIndex (), promiscuous);

}

void 

EmuHelper::EnablePcap (std::string filename, NetDeviceContainer d, bool promiscuous)

{

  NS_LOG_FUNCTION (filename << &d << promiscuous);

  for (NetDeviceContainer::Iterator i = d.Begin (); i != d.End (); ++i)

    {

      Ptr<NetDevice> dev = *i;

      EnablePcap (filename, dev->GetNode ()->GetId (), dev->GetIfIndex (), promiscuous);

    }

}

void

EmuHelper::EnablePcap (std::string filename, NodeContainer n, bool promiscuous)

{

  NS_LOG_FUNCTION (filename << &n << promiscuous);

  NetDeviceContainer devs;

  for (NodeContainer::Iterator i = n.Begin (); i != n.End (); ++i)

    {

      Ptr<Node> node = *i;

      for (uint32_t j = 0; j < node->GetNDevices (); ++j)

	{

	  devs.Add (node->GetDevice (j));

	}

    }

  EnablePcap (filename, devs, promiscuous);

}

void

EmuHelper::EnablePcapAll (std::string filename, bool promiscuous)

{

  NS_LOG_FUNCTION (filename << promiscuous);

  EnablePcap (filename, NodeContainer::GetGlobal (), promiscuous);

}

void 

EmuHelper::EnableAscii (std::ostream &os, uint32_t nodeid, uint32_t deviceid)

{

  NS_LOG_FUNCTION (&os << nodeid << deviceid);

  Packet::EnablePrinting ();

  std::ostringstream oss;

  oss << "/NodeList/" << nodeid << "/DeviceList/" << deviceid << "/$ns3::EmuNetDevice/MacRx";

  Config::Connect (oss.str (), MakeBoundCallback (&EmuHelper::AsciiRxEvent, &os));

  oss.str ("");

  oss << "/NodeList/" << nodeid << "/DeviceList/" << deviceid << "/$ns3::EmuNetDevice/TxQueue/Enqueue";

  Config::Connect (oss.str (), MakeBoundCallback (&EmuHelper::AsciiEnqueueEvent, &os));

  oss.str ("");

  oss << "/NodeList/" << nodeid << "/DeviceList/" << deviceid << "/$ns3::EmuNetDevice/TxQueue/Dequeue";

  Config::Connect (oss.str (), MakeBoundCallback (&EmuHelper::AsciiDequeueEvent, &os));

  oss.str ("");

  oss << "/NodeList/" << nodeid << "/DeviceList/" << deviceid << "/$ns3::EmuNetDevice/TxQueue/Drop";

  Config::Connect (oss.str (), MakeBoundCallback (&EmuHelper::AsciiDropEvent, &os));

}

void 

EmuHelper::EnableAscii (std::ostream &os, NetDeviceContainer d)

{

  NS_LOG_FUNCTION (&os << &d);

  for (NetDeviceContainer::Iterator i = d.Begin (); i != d.End (); ++i)

    {

      Ptr<NetDevice> dev = *i;

      EnableAscii (os, dev->GetNode ()->GetId (), dev->GetIfIndex ());

    }

}

void

EmuHelper::EnableAscii (std::ostream &os, NodeContainer n)

{

  NS_LOG_FUNCTION (&os << &n);

  NetDeviceContainer devs;

  for (NodeContainer::Iterator i = n.Begin (); i != n.End (); ++i)

    {

      Ptr<Node> node = *i;

      for (uint32_t j = 0; j < node->GetNDevices (); ++j)

	{

	  devs.Add (node->GetDevice (j));

	}

    }

  EnableAscii (os, devs);

}

void

EmuHelper::EnableAsciiAll (std::ostream &os)

{

  NS_LOG_FUNCTION (&os);

  EnableAscii (os, NodeContainer::GetGlobal ());

}

NetDeviceContainer

EmuHelper::Install (Ptr<Node> node) const

{

  return NetDeviceContainer (InstallPriv (node));

}

NetDeviceContainer

EmuHelper::Install (std::string nodeName) const

{

  Ptr<Node> node = Names::Find<Node> (nodeName);

  return NetDeviceContainer (InstallPriv (node));

}

NetDeviceContainer 

EmuHelper::Install (const NodeContainer &c) const

{

  NetDeviceContainer devs;

  for (NodeContainer::Iterator i = c.Begin (); i != c.End (); i++)

    {

      devs.Add (InstallPriv (*i));

    }

  return devs;

}

Ptr<NetDevice>

EmuHelper::InstallPriv (Ptr<Node> node) const

{

  Ptr<EmuNetDevice> device = m_deviceFactory.Create<EmuNetDevice> ();

  device->SetAddress (Mac48Address::Allocate ());

  node->AddDevice (device);

  Ptr<Queue> queue = m_queueFactory.Create<Queue> ();

  device->SetQueue (queue);

  return device;

}

void 

EmuHelper::SniffEvent (Ptr<PcapWriter> writer, Ptr<const Packet> packet)

{

  NS_LOG_FUNCTION (writer << packet);

  writer->WritePacket (packet);

}

void 

EmuHelper::AsciiEnqueueEvent (

  std::ostream *os, 

  std::string path, 

  Ptr<const Packet> packet)

{

  NS_LOG_FUNCTION (&os << path << packet);

  *os << "+ " << Simulator::Now ().GetSeconds () << " ";

  *os << path << " " << *packet << std::endl;

}

void 

EmuHelper::AsciiDequeueEvent (

  std::ostream *os, 

  std::string path, 

  Ptr<const Packet> packet)

{

  NS_LOG_FUNCTION (&os << path << packet);

  *os << "- " << Simulator::Now ().GetSeconds () << " ";

  *os << path << " " << *packet << std::endl;

}

void 

EmuHelper::AsciiDropEvent (

  std::ostream *os, 

  std::string path, 

  Ptr<const Packet> packet)

{

  NS_LOG_FUNCTION (&os << path << packet);

  *os << "d " << Simulator::Now ().GetSeconds () << " ";

  *os << path << " " << *packet << std::endl;

}

void 

EmuHelper::AsciiRxEvent (

  std::ostream *os, 

  std::string path, 

  Ptr<const Packet> packet)

{

  NS_LOG_FUNCTION (&os << path << packet);

  *os << "r " << Simulator::Now ().GetSeconds () << " ";

  *os << path << " " << *packet << std::endl;

}

} // namespace ns3