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

/*

 * Copyright (c) 2009 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 "ipv4-route.h"

#include "ns3/net-device.h"

#include "ns3/assert.h"

#include "ns3/log.h"

NS_LOG_COMPONENT_DEFINE ("Ipv4Route");

namespace ns3 {

Ipv4Route::Ipv4Route ()

{

  NS_LOG_FUNCTION (this);

}

void

Ipv4Route::SetDestination (Ipv4Address dest)

{

  NS_LOG_FUNCTION (this << dest);

  m_dest = dest;

}

Ipv4Address

Ipv4Route::GetDestination (void) const

{

  NS_LOG_FUNCTION (this);

  return m_dest;

}

void

Ipv4Route::SetSource (Ipv4Address src)

{

  NS_LOG_FUNCTION (this << src);

  m_source = src;

}

Ipv4Address

Ipv4Route::GetSource (void) const

{

  NS_LOG_FUNCTION (this);

  return m_source;

}

void

Ipv4Route::SetGateway (Ipv4Address gw)

{

  NS_LOG_FUNCTION (this << gw);

  m_gateway = gw;

}

Ipv4Address

Ipv4Route::GetGateway (void) const

{

  NS_LOG_FUNCTION (this);

  return m_gateway;

}

void

Ipv4Route::SetOutputDevice (Ptr<NetDevice> outputDevice)

{

  NS_LOG_FUNCTION (this << outputDevice);

  m_outputDevice = outputDevice;

}

Ptr<NetDevice>

Ipv4Route::GetOutputDevice (void) const

{

  NS_LOG_FUNCTION (this);

  return m_outputDevice;

}

std::ostream& operator<< (std::ostream& os, Ipv4Route const& route)

{

  os << "source=" << route.GetSource () << " dest="<< route.GetDestination () <<" gw=" << route.GetGateway ();

  return os;

}

Ipv4MulticastRoute::Ipv4MulticastRoute ()

{

  NS_LOG_FUNCTION (this);

  m_ttls.clear ();

}

void 

Ipv4MulticastRoute::SetGroup (const Ipv4Address group)

{

  NS_LOG_FUNCTION (this << group);

  m_group = group;

}

Ipv4Address 

Ipv4MulticastRoute::GetGroup (void) const

{

  NS_LOG_FUNCTION (this);

  return m_group;

}

void 

Ipv4MulticastRoute::SetOrigin (const Ipv4Address origin)

{

  NS_LOG_FUNCTION (this << origin);

  m_origin = origin;

}

Ipv4Address 

Ipv4MulticastRoute::GetOrigin (void) const

{

  NS_LOG_FUNCTION (this);

  return m_origin;

}

void 

Ipv4MulticastRoute::SetParent (uint32_t parent)

{

  NS_LOG_FUNCTION (this << parent);

  m_parent = parent;

}

uint32_t 

Ipv4MulticastRoute::GetParent (void) const

{

  NS_LOG_FUNCTION (this);

  return m_parent;

}

void 

Ipv4MulticastRoute::SetOutputTtl (uint32_t oif, uint32_t ttl)

{

  NS_LOG_FUNCTION (this << oif << ttl);

  if (ttl >= MAX_TTL)

    {

      // This TTL value effectively disables the interface

      std::map<uint32_t, uint32_t>::iterator iter;

      iter = m_ttls.find (oif);

      if (iter != m_ttls.end ())

        {

          m_ttls.erase (iter);

        }

    }

  else

    {

      m_ttls[oif] = ttl;

    }

}

uint32_t

Ipv4MulticastRoute::GetOutputTtl (uint32_t oif)

{

  NS_LOG_FUNCTION (this << oif);

  // We keep this interface around for compatibility (for now)

  std::map<uint32_t, uint32_t>::const_iterator iter = m_ttls.find (oif);

  if (iter == m_ttls.end ())

    return((uint32_t)MAX_TTL);

  return(iter->second);

}

std::map<uint32_t, uint32_t>

Ipv4MulticastRoute::GetOutputTtlMap () const

{

  NS_LOG_FUNCTION (this);

  return(m_ttls);

}

} // namespace ns3