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

/*

 * Copyright (c) 2008 INRIA

 *

 * 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: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>

 */

#include "csma-helper.h"

#include "ns3/simulator.h"

#include "ns3/object-factory.h"

#include "ns3/queue.h"

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

#include "ns3/csma-channel.h"

#include "ns3/pcap-writer.h"

#include "ns3/config.h"

#include "ns3/packet.h"

#include "ns3/names.h"

#include <string>

namespace ns3 {

CsmaHelper::CsmaHelper ()

{

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

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

  m_channelFactory.SetTypeId ("ns3::CsmaChannel");

}

void 

CsmaHelper::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)

{

  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 

CsmaHelper::SetDeviceAttribute (std::string n1, const AttributeValue &v1)

{

  m_deviceFactory.Set (n1, v1);

}

void 

CsmaHelper::SetChannelAttribute (std::string n1, const AttributeValue &v1)

{

  m_channelFactory.Set (n1, v1);

}

void 

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

{

  std::ostringstream oss;

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

  Config::MatchContainer matches = Config::LookupMatches (oss.str ());

  if (matches.GetN () == 0)

    {

      return;

    }

  oss.str ("");

  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::CsmaNetDevice/PromiscSniffer";

    }

  else

    {

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

    }

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

}

void 

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

{

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

    {

      Ptr<NetDevice> dev = *i;

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

    }

}

void 

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

{

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

}

void 

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

{

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

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

}

void

CsmaHelper::EnablePcap (std::string filename, NodeContainer n, bool 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

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

{

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

}

void 

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

{

  Packet::EnablePrinting ();

  std::ostringstream oss;

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

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

  oss.str ("");

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

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

  oss.str ("");

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

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

  oss.str ("");

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

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

}

void 

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

{

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

    {

      Ptr<NetDevice> dev = *i;

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

    }

}

void

CsmaHelper::EnableAscii (std::ostream &os, NodeContainer 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

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

{

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

}

NetDeviceContainer

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

{

  Ptr<CsmaChannel> channel = m_channelFactory.Create ()->GetObject<CsmaChannel> ();

  return Install (node, channel);

}

NetDeviceContainer

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

{

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

  return Install (node);

}

NetDeviceContainer

CsmaHelper::Install (Ptr<Node> node, Ptr<CsmaChannel> channel) const

{

  return NetDeviceContainer (InstallPriv (node, channel));

}

NetDeviceContainer

CsmaHelper::Install (Ptr<Node> node, std::string channelName) const

{

  Ptr<CsmaChannel> channel = Names::Find<CsmaChannel> (channelName);

  return NetDeviceContainer (InstallPriv (node, channel));

}

NetDeviceContainer

CsmaHelper::Install (std::string nodeName, Ptr<CsmaChannel> channel) const

{

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

  return NetDeviceContainer (InstallPriv (node, channel));

}

NetDeviceContainer

CsmaHelper::Install (std::string nodeName, std::string channelName) const

{

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

  Ptr<CsmaChannel> channel = Names::Find<CsmaChannel> (channelName);

  return NetDeviceContainer (InstallPriv (node, channel));

}

NetDeviceContainer 

CsmaHelper::Install (const NodeContainer &c) const

{

  Ptr<CsmaChannel> channel = m_channelFactory.Create ()->GetObject<CsmaChannel> ();

  return Install (c, channel);

}

NetDeviceContainer 

CsmaHelper::Install (const NodeContainer &c, Ptr<CsmaChannel> channel) const

{

  NetDeviceContainer devs;

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

    {

      devs.Add (InstallPriv (*i, channel));

    }

  return devs;

}

NetDeviceContainer 

CsmaHelper::Install (const NodeContainer &c, std::string channelName) const

{

  Ptr<CsmaChannel> channel = Names::Find<CsmaChannel> (channelName);

  return Install (c, channel);

}

Ptr<NetDevice>

CsmaHelper::InstallPriv (Ptr<Node> node, Ptr<CsmaChannel> channel) const

{

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

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

  node->AddDevice (device);

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

  device->SetQueue (queue);

  device->Attach (channel);

  return device;

}

void 

CsmaHelper::InstallStar (Ptr<Node> hub, NodeContainer spokes, 

                         NetDeviceContainer& hubDevices, NetDeviceContainer& spokeDevices)

{

  for (uint32_t i = 0; i < spokes.GetN (); ++i)

    {

      NodeContainer nodes (hub, spokes.Get (i));

      NetDeviceContainer nd = Install (nodes);

      hubDevices.Add (nd.Get (0));

      spokeDevices.Add (nd.Get (1));

    }

}

void 

CsmaHelper::InstallStar (std::string hubName, NodeContainer spokes, 

                         NetDeviceContainer& hubDevices, NetDeviceContainer& spokeDevices)

{

  Ptr<Node> hub = Names::Find<Node> (hubName);

  InstallStar (hub, spokes, hubDevices, spokeDevices);

}

void 

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

{

  writer->WritePacket (packet);

}

void 

CsmaHelper::AsciiEnqueueEvent (std::ostream *os, std::string path, Ptr<const Packet> packet)

{

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

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

}

void 

CsmaHelper::AsciiDequeueEvent (std::ostream *os, std::string path, Ptr<const Packet> packet)

{

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

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

}

void 

CsmaHelper::AsciiDropEvent (std::ostream *os, std::string path, Ptr<const Packet> packet)

{

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

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

}

void 

CsmaHelper::AsciiRxEvent (std::ostream *os, std::string path, Ptr<const Packet> packet)

{

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

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

}

} // namespace ns3