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

/*

 * Copyright (c) 2006 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 "mgt-headers.h"

#include "ns3/simulator.h"

#include "ns3/assert.h"

namespace ns3 {

/***********************************************************

 *          Probe Request

 ***********************************************************/

NS_OBJECT_ENSURE_REGISTERED (MgtProbeRequestHeader);

MgtProbeRequestHeader::~MgtProbeRequestHeader ()

{}

void 

MgtProbeRequestHeader::SetSsid (Ssid ssid)

{

  m_ssid = ssid;

}

Ssid 

MgtProbeRequestHeader::GetSsid (void) const

{

  return m_ssid;

}

void 

MgtProbeRequestHeader::SetSupportedRates (SupportedRates rates)

{

  m_rates = rates;

}

SupportedRates 

MgtProbeRequestHeader::GetSupportedRates (void) const

{

  return m_rates;

}

uint32_t

MgtProbeRequestHeader::GetSerializedSize (void) const

{

  uint32_t size = 0;

  size += m_ssid.GetSerializedSize ();

  size += m_rates.GetSerializedSize ();

  return size;

}

TypeId 

MgtProbeRequestHeader::GetTypeId (void)

{

  static TypeId tid = TypeId ("ns3::MgtProbeRequestHeader")

    .SetParent<Header> ()

    .AddConstructor<MgtProbeRequestHeader> ()

    ;

  return tid;

}

TypeId 

MgtProbeRequestHeader::GetInstanceTypeId (void) const

{

  return GetTypeId ();

}

void 

MgtProbeRequestHeader::Print (std::ostream &os) const

{

  os << "ssid="<<m_ssid<<", "

     << "rates="<<m_rates;

}

void

MgtProbeRequestHeader::Serialize (Buffer::Iterator start) const

{  

  Buffer::Iterator i = start;

  i = m_ssid.Serialize (i);

  i = m_rates.Serialize (i);

}

uint32_t

MgtProbeRequestHeader::Deserialize (Buffer::Iterator start)

{

  Buffer::Iterator i = start;

  i = m_ssid.Deserialize (i);

  i = m_rates.Deserialize (i);

  return i.GetDistanceFrom (start);

}

/***********************************************************

 *          Probe Response

 ***********************************************************/

NS_OBJECT_ENSURE_REGISTERED (MgtProbeResponseHeader);

MgtProbeResponseHeader::MgtProbeResponseHeader ()

{}

MgtProbeResponseHeader::~MgtProbeResponseHeader ()

{}

uint64_t

MgtProbeResponseHeader::GetTimestamp()

{

  return m_timestamp;

}

Ssid 

MgtProbeResponseHeader::GetSsid (void) const

{

  return m_ssid;

}

uint64_t 

MgtProbeResponseHeader::GetBeaconIntervalUs (void) const

{

  return m_beaconInterval;

}

SupportedRates 

MgtProbeResponseHeader::GetSupportedRates (void) const

{

  return m_rates;

}

void 

MgtProbeResponseHeader::SetSsid (Ssid ssid)

{

  m_ssid = ssid;

}

void 

MgtProbeResponseHeader::SetBeaconIntervalUs (uint64_t us)

{

  m_beaconInterval = us;

}

void

MgtProbeResponseHeader::SetSupportedRates (SupportedRates rates)

{

  m_rates = rates;

}

TypeId 

MgtProbeResponseHeader::GetTypeId (void)

{

  static TypeId tid = TypeId ("ns3::MgtProbeResponseHeader")

    .SetParent<Header> ()

    .AddConstructor<MgtProbeResponseHeader> ()

    ;

  return tid;

}

TypeId 

MgtProbeResponseHeader::GetInstanceTypeId (void) const

{

  return GetTypeId ();

}

uint32_t

MgtProbeResponseHeader::GetSerializedSize (void) const

{

  uint32_t size = 0;

  size += 8; // timestamp

  size += 2; // beacon interval

  size += m_capability.GetSerializedSize ();

  size += m_ssid.GetSerializedSize ();

  size += m_rates.GetSerializedSize ();

  //size += 3; // ds parameter set

  // xxx

  return size;

}

void 

MgtProbeResponseHeader::Print (std::ostream &os) const

{

  os << "ssid="<<m_ssid<<", "

     << "rates="<<m_rates;

}

void 

MgtProbeResponseHeader::Serialize (Buffer::Iterator start) const

{

  // timestamp

  // beacon interval

  // capability information

  // ssid

  // supported rates

  // fh parameter set

  // ds parameter set

  // cf parameter set

  // ibss parameter set

  //XXX

  Buffer::Iterator i = start;

  i.WriteHtonU64 (Simulator::Now ().GetMicroSeconds ());

  i.WriteHtonU16 (m_beaconInterval / 1024);

  i = m_capability.Serialize (i);

  i = m_ssid.Serialize (i);

  i = m_rates.Serialize (i);

  //i.WriteU8 (0, 3); // ds parameter set.

}

uint32_t

MgtProbeResponseHeader::Deserialize (Buffer::Iterator start)

{

  Buffer::Iterator i = start;

  m_timestamp = i.ReadNtohU64();

  m_beaconInterval = i.ReadNtohU16 ();

  m_beaconInterval *= 1024;

  i = m_capability.Deserialize (i);

  i = m_ssid.Deserialize (i);

  i = m_rates.Deserialize (i);

  //i.Next (3); // ds parameter set

  return i.GetDistanceFrom (start);

}

/***********************************************************

 *          Assoc Request

 ***********************************************************/

NS_OBJECT_ENSURE_REGISTERED (MgtAssocRequestHeader);

MgtAssocRequestHeader::MgtAssocRequestHeader ()

  : m_listenInterval (0)

{}

MgtAssocRequestHeader::~MgtAssocRequestHeader ()

{}

void 

MgtAssocRequestHeader::SetSsid (Ssid ssid)

{

  m_ssid = ssid;

}

void 

MgtAssocRequestHeader::SetSupportedRates (SupportedRates rates)

{

  m_rates = rates;

}

void

MgtAssocRequestHeader::SetListenInterval (uint16_t interval)

{

  m_listenInterval = interval;

}

Ssid 

MgtAssocRequestHeader::GetSsid (void) const

{

  return m_ssid;

}

SupportedRates 

MgtAssocRequestHeader::GetSupportedRates (void) const

{

  return m_rates;

}

uint16_t

MgtAssocRequestHeader::GetListenInterval (void) const

{

  return m_listenInterval;

}

TypeId 

MgtAssocRequestHeader::GetTypeId (void)

{

  static TypeId tid = TypeId ("ns3::MgtAssocRequestHeader")

    .SetParent<Header> ()

    .AddConstructor<MgtAssocRequestHeader> ()

    ;

  return tid;

}

TypeId 

MgtAssocRequestHeader::GetInstanceTypeId (void) const

{

  return GetTypeId ();

}

uint32_t 

MgtAssocRequestHeader::GetSerializedSize (void) const

{

  uint32_t size = 0;

  size += m_capability.GetSerializedSize ();

  size += 2;

  size += m_ssid.GetSerializedSize ();

  size += m_rates.GetSerializedSize ();

  return size;

}

void 

MgtAssocRequestHeader::Print (std::ostream &os) const

{

  os << "ssid="<<m_ssid<<", "

     << "rates="<<m_rates;

}

void 

MgtAssocRequestHeader::Serialize (Buffer::Iterator start) const

{

  Buffer::Iterator i = start;

  i = m_capability.Serialize (i);

  i.WriteHtonU16 (m_listenInterval);

  i = m_ssid.Serialize (i);

  i = m_rates.Serialize (i);

}

uint32_t

MgtAssocRequestHeader::Deserialize (Buffer::Iterator start)

{

  Buffer::Iterator i = start;

  i = m_capability.Deserialize (i);

  m_listenInterval = i.ReadNtohU16 ();

  i = m_ssid.Deserialize (i);

  i = m_rates.Deserialize (i);

  return i.GetDistanceFrom (start);

}

/***********************************************************

 *          Assoc Response

 ***********************************************************/

NS_OBJECT_ENSURE_REGISTERED (MgtAssocResponseHeader);

MgtAssocResponseHeader::MgtAssocResponseHeader ()

  : m_aid (0)

{}

MgtAssocResponseHeader::~MgtAssocResponseHeader ()

{}

StatusCode 

MgtAssocResponseHeader::GetStatusCode (void)

{

  return m_code;

}

SupportedRates 

MgtAssocResponseHeader::GetSupportedRates (void)

{

  return m_rates;

}

void 

MgtAssocResponseHeader::SetStatusCode (StatusCode code)

{

  m_code = code;

}

void 

MgtAssocResponseHeader::SetSupportedRates (SupportedRates rates)

{

  m_rates = rates;

}

TypeId 

MgtAssocResponseHeader::GetTypeId (void)

{

  static TypeId tid = TypeId ("ns3::MgtAssocResponseHeader")

    .SetParent<Header> ()

    .AddConstructor<MgtAssocResponseHeader> ()

    ;

  return tid;

}

TypeId 

MgtAssocResponseHeader::GetInstanceTypeId (void) const

{

  return GetTypeId ();

}

uint32_t

MgtAssocResponseHeader::GetSerializedSize (void) const

{

  uint32_t size = 0;

  size += m_capability.GetSerializedSize ();

  size += m_code.GetSerializedSize ();

  size += 2; // aid

  size += m_rates.GetSerializedSize ();

  return size;

}

void 

MgtAssocResponseHeader::Print (std::ostream &os) const

{

  os << "status code="<<m_code<<", "

     << "rates="<<m_rates;

}

void 

MgtAssocResponseHeader::Serialize (Buffer::Iterator start) const

{

  Buffer::Iterator i = start;

  i = m_capability.Serialize (i);

  i = m_code.Serialize (i);

  i.WriteHtonU16 (m_aid);

  i = m_rates.Serialize (i);

}

uint32_t

MgtAssocResponseHeader::Deserialize (Buffer::Iterator start)

{

  Buffer::Iterator i = start;

  i = m_capability.Deserialize (i);

  i = m_code.Deserialize (i);

  m_aid = i.ReadNtohU16 ();

  i = m_rates.Deserialize (i);

  return i.GetDistanceFrom (start);

}

/**********************************************************

 *   ActionFrame

 **********************************************************/

WifiActionHeader::WifiActionHeader ()

{

}

WifiActionHeader::~WifiActionHeader ()

{

}

void

WifiActionHeader::SetAction (WifiActionHeader::CategoryValue type,

    WifiActionHeader::ActionValue action)

{

  m_category = type;

  switch (type)

    {

  case MESH_PEERING_MGT:

    {

      m_actionValue = action.peerLink;

      break;

    }

  case MESH_PATH_SELECTION:

    {

      m_actionValue = action.pathSelection;

      break;

    }

  case MESH_LINK_METRIC:

  case MESH_INTERWORKING:

  case MESH_RESOURCE_COORDINATION:

  case MESH_PROXY_FORWARDING:

    break;

    }

}

WifiActionHeader::CategoryValue

WifiActionHeader::GetCategory ()

{

  switch (m_category)

    {

  case MESH_PEERING_MGT:

    return MESH_PEERING_MGT;

  case MESH_LINK_METRIC:

    return MESH_LINK_METRIC;

  case MESH_PATH_SELECTION:

    return MESH_PATH_SELECTION;

  case MESH_INTERWORKING:

    return MESH_INTERWORKING;

  case MESH_RESOURCE_COORDINATION:

    return MESH_RESOURCE_COORDINATION;

  case MESH_PROXY_FORWARDING:

    return MESH_PROXY_FORWARDING;

  default:

    NS_FATAL_ERROR ("Unknown action value");

    return MESH_PEERING_MGT;

    }

}

WifiActionHeader::ActionValue

WifiActionHeader::GetAction ()

{

  ActionValue retval;

  retval.peerLink = PEER_LINK_OPEN; // Needs to be initialized to something to quiet valgrind in default cases

  switch (m_category)

    {

  case MESH_PEERING_MGT:

    switch (m_actionValue)

      {

    case PEER_LINK_OPEN:

      retval.peerLink = PEER_LINK_OPEN;

      return retval;

    case PEER_LINK_CONFIRM:

      retval.peerLink = PEER_LINK_CONFIRM;

      return retval;

    case PEER_LINK_CLOSE:

      retval.peerLink = PEER_LINK_CLOSE;

      return retval;

    default:

      NS_FATAL_ERROR ("Unknown mesh peering management action code");

      retval.peerLink = PEER_LINK_OPEN;  /* quiet compiler */

      return retval;

      }

  case MESH_PATH_SELECTION:

    switch (m_actionValue)

      {

    case PATH_SELECTION:

      retval.pathSelection = PATH_SELECTION;

      return retval;

    default:

      NS_FATAL_ERROR ("Unknown mesh path selection action code");

      retval.peerLink = PEER_LINK_OPEN;  /* quiet compiler */

      return retval;

      }

  case MESH_LINK_METRIC:

    // not yet supported

  case MESH_INTERWORKING:

    // not yet supported

  case MESH_RESOURCE_COORDINATION:

    // not yet supported

  default: