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

/*

 * Copyright (c) 2007-2009 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>

 */

#include "ipv6-routing-table-entry.h"

#include "ns3/assert.h"

namespace ns3

{

Ipv6RoutingTableEntry::Ipv6RoutingTableEntry ()

{

}

Ipv6RoutingTableEntry::Ipv6RoutingTableEntry (Ipv6RoutingTableEntry const& route)

  : m_dest (route.m_dest),

  m_destNetworkPrefix (route.m_destNetworkPrefix),

  m_gateway (route.m_gateway),

  m_interface (route.m_interface),

  m_prefixToUse (route.m_prefixToUse)

{

}

Ipv6RoutingTableEntry::Ipv6RoutingTableEntry (Ipv6RoutingTableEntry const* route) 

  : m_dest (route->m_dest),

  m_destNetworkPrefix (route->m_destNetworkPrefix),

  m_gateway (route->m_gateway),

  m_interface (route->m_interface),

  m_prefixToUse (route->m_prefixToUse)

{

}

Ipv6RoutingTableEntry::Ipv6RoutingTableEntry (Ipv6Address dest, Ipv6Address gateway, uint32_t interface)

  : m_dest (dest),

  m_destNetworkPrefix (Ipv6Prefix::GetZero ()),

  m_gateway (gateway),

  m_interface (interface),

  m_prefixToUse (Ipv6Address ("::"))

{

}

Ipv6RoutingTableEntry::Ipv6RoutingTableEntry (Ipv6Address dest, uint32_t interface)

  : m_dest (dest),

  m_destNetworkPrefix (Ipv6Prefix (128)),

  m_gateway (Ipv6Address::GetZero ()),

  m_interface (interface),

  m_prefixToUse (Ipv6Address ("::"))

{

}

Ipv6RoutingTableEntry::Ipv6RoutingTableEntry (Ipv6Address network, Ipv6Prefix networkPrefix, Ipv6Address gateway, uint32_t interface, Ipv6Address prefixToUse)

  : m_dest (network),

  m_destNetworkPrefix (networkPrefix),

  m_gateway (gateway),

  m_interface (interface),

  m_prefixToUse (prefixToUse)

{

}

Ipv6RoutingTableEntry::Ipv6RoutingTableEntry (Ipv6Address network, Ipv6Prefix networkPrefix, Ipv6Address gateway, uint32_t interface)

  : m_dest (network),

  m_destNetworkPrefix (networkPrefix),

  m_gateway (gateway),

  m_interface (interface),

  m_prefixToUse (Ipv6Address::GetZero ())

{

}

Ipv6RoutingTableEntry::Ipv6RoutingTableEntry (Ipv6Address network, Ipv6Prefix networkPrefix, uint32_t interface, Ipv6Address prefixToUse)

  : m_dest (network),

  m_destNetworkPrefix (networkPrefix),

  m_gateway (Ipv6Address::GetZero ()),

  m_interface (interface),

  m_prefixToUse (prefixToUse)

{

}

Ipv6RoutingTableEntry::Ipv6RoutingTableEntry (Ipv6Address network, Ipv6Prefix networkPrefix, uint32_t interface)

  : m_dest (network),

  m_destNetworkPrefix (networkPrefix),

  m_gateway (Ipv6Address::GetZero ()),

  m_interface (interface),

  m_prefixToUse (Ipv6Address ("::"))

{

}

Ipv6RoutingTableEntry::~Ipv6RoutingTableEntry ()

{

}

bool Ipv6RoutingTableEntry::IsHost () const

{

  static Ipv6Prefix prefix (128);

  if (m_destNetworkPrefix.IsEqual (prefix))

  {

    return true;

  }

  return false;

}

Ipv6Address Ipv6RoutingTableEntry::GetDest () const

{

  return m_dest;

}

Ipv6Address Ipv6RoutingTableEntry::GetPrefixToUse () const

{

  return m_prefixToUse;

}

void Ipv6RoutingTableEntry::SetPrefixToUse (Ipv6Address prefix)

{

  m_prefixToUse = prefix;

}

bool Ipv6RoutingTableEntry::IsNetwork () const

{

  return !IsHost ();

}

bool Ipv6RoutingTableEntry::IsDefault () const

{

  if (m_dest.IsEqual (Ipv6Address::GetZero ()))

  {

    return true;

  }

  return false;

}

Ipv6Address Ipv6RoutingTableEntry::GetDestNetwork () const

{

  return m_dest;

}

Ipv6Prefix Ipv6RoutingTableEntry::GetDestNetworkPrefix () const

{

  return m_destNetworkPrefix;

}

bool Ipv6RoutingTableEntry::IsGateway () const

{

  if (m_gateway.IsEqual (Ipv6Address::GetZero ()))

  {

    return false;

  }

  return true;

}

Ipv6Address Ipv6RoutingTableEntry::GetGateway () const

{

  return m_gateway;

}

Ipv6RoutingTableEntry Ipv6RoutingTableEntry::CreateHostRouteTo (Ipv6Address dest, Ipv6Address nextHop, uint32_t interface, Ipv6Address prefixToUse)

{

  return Ipv6RoutingTableEntry (dest, Ipv6Prefix (128), nextHop, interface, prefixToUse);

}

Ipv6RoutingTableEntry Ipv6RoutingTableEntry::CreateHostRouteTo (Ipv6Address dest, uint32_t interface)

{

  return Ipv6RoutingTableEntry (dest, interface);

}

Ipv6RoutingTableEntry Ipv6RoutingTableEntry::CreateNetworkRouteTo (Ipv6Address network, Ipv6Prefix networkPrefix, Ipv6Address nextHop, uint32_t interface)

{

  return Ipv6RoutingTableEntry (network, networkPrefix, nextHop, interface);

}

Ipv6RoutingTableEntry Ipv6RoutingTableEntry::CreateNetworkRouteTo (Ipv6Address network, Ipv6Prefix networkPrefix, Ipv6Address nextHop, uint32_t interface, Ipv6Address prefixToUse)

{

  return Ipv6RoutingTableEntry (network, networkPrefix, nextHop, interface, prefixToUse);

}

Ipv6RoutingTableEntry Ipv6RoutingTableEntry::CreateNetworkRouteTo (Ipv6Address network, Ipv6Prefix networkPrefix, uint32_t interface)

{

  return Ipv6RoutingTableEntry (network, networkPrefix, interface, network);

}

Ipv6RoutingTableEntry Ipv6RoutingTableEntry::CreateDefaultRoute (Ipv6Address nextHop, uint32_t interface)

{

  return Ipv6RoutingTableEntry (Ipv6Address::GetZero (), nextHop, interface);

}

uint32_t Ipv6RoutingTableEntry::GetInterface () const

{

  return m_interface;

}

std::ostream& operator<< (std::ostream& os, Ipv6RoutingTableEntry const& route)

{

  if (route.IsDefault ())

  {

    NS_ASSERT (route.IsGateway ());

    os << "default out =" << route.GetInterface () << ", next hop =" << route.GetGateway ();

  }

  else if (route.IsHost ())

  {

    if (route.IsGateway ())

    {

      os << "host ="<< route.GetDest () <<

        ", out =" << route.GetInterface () <<

        ", next hop =" << route.GetGateway ();

    }

    else

    {

      os << "host =" << route.GetDest () <<

        ", out =" << route.GetInterface ();

    }

  }

  else if (route.IsNetwork ())

  {

    if (route.IsGateway ())

    {

      os << "network =" << route.GetDestNetwork () <<

        ", mask =" << route.GetDestNetworkPrefix () <<

        ",out =" << route.GetInterface () <<

        ", next hop =" << route.GetGateway ();

    }

    else

    {

      os << "network =" << route.GetDestNetwork () <<

        ", mask =" << route.GetDestNetworkPrefix () <<

        ",out =" << route.GetInterface ();

    }

  }

  else

  {

    NS_ASSERT (false);

  }

  return os;

}

Ipv6MulticastRoutingTableEntry::Ipv6MulticastRoutingTableEntry ()

{

}

Ipv6MulticastRoutingTableEntry::Ipv6MulticastRoutingTableEntry (Ipv6MulticastRoutingTableEntry const & route) 

  : m_origin (route.m_origin),

  m_group (route.m_group),

  m_inputInterface (route.m_inputInterface),

  m_outputInterfaces (route.m_outputInterfaces)

{

}

Ipv6MulticastRoutingTableEntry::Ipv6MulticastRoutingTableEntry (Ipv6MulticastRoutingTableEntry const* route)

  : m_origin (route->m_origin),

  m_group (route->m_group),

  m_inputInterface (route->m_inputInterface),

  m_outputInterfaces (route->m_outputInterfaces)

{

}

Ipv6MulticastRoutingTableEntry::Ipv6MulticastRoutingTableEntry (Ipv6Address origin, Ipv6Address group, uint32_t inputInterface, std::vector<uint32_t> outputInterfaces)

  : m_origin (origin),

  m_group (group),

  m_inputInterface (inputInterface),

  m_outputInterfaces (outputInterfaces)

{

}

Ipv6Address Ipv6MulticastRoutingTableEntry::GetOrigin () const

{

  return m_origin;

}

Ipv6Address Ipv6MulticastRoutingTableEntry::GetGroup () const

{

  return m_group;

}

uint32_t Ipv6MulticastRoutingTableEntry::GetInputInterface () const

{

  return m_inputInterface;

}

uint32_t Ipv6MulticastRoutingTableEntry::GetNOutputInterfaces () const

{

  return m_outputInterfaces.size ();

}

uint32_t Ipv6MulticastRoutingTableEntry::GetOutputInterface (uint32_t n) const

{

  NS_ASSERT_MSG (n < m_outputInterfaces.size (), "Ipv6MulticastRoutingTableEntry::GetOutputInterface () : index out of bounds");

  return m_outputInterfaces[n];

}

std::vector <uint32_t> Ipv6MulticastRoutingTableEntry::GetOutputInterfaces () const

{

  return m_outputInterfaces;

}

Ipv6MulticastRoutingTableEntry Ipv6MulticastRoutingTableEntry::CreateMulticastRoute (Ipv6Address origin, Ipv6Address group, uint32_t inputInterface, std::vector<uint32_t> outputInterfaces)

{

  return Ipv6MulticastRoutingTableEntry (origin, group, inputInterface, outputInterfaces);

}

std::ostream& operator<< (std::ostream& os, Ipv6MulticastRoutingTableEntry const& route)

{

  os << "origin =" << route.GetOrigin () <<

    ", group =" << route.GetGroup () <<

    ", input interface =" << route.GetInputInterface () <<

    ", output interfaces =";

  for (uint32_t i = 0; i < route.GetNOutputInterfaces (); ++i)

  {

    os << route.GetOutputInterface (i) << " ";

  }

  return os;

}

} /* namespace ns3 */