/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2005 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: Emmanuelle Laprise <emmanuelle.laprise@bluekazoo.ca>
*/
#include "ns3/assert.h"
#include "ns3/log.h"
#include "ns3/trailer.h"
#include "ethernet-trailer.h"
NS_LOG_COMPONENT_DEFINE ("EthernetTrailer");
namespace ns3 {
NS_OBJECT_ENSURE_REGISTERED (EthernetTrailer);
bool EthernetTrailer::m_calcFcs = false;
EthernetTrailer::EthernetTrailer ()
{
Init();
}
void EthernetTrailer::Init()
{
m_fcs = 0;
}
void
EthernetTrailer::EnableFcs (bool enable)
{
m_calcFcs = enable;
}
bool
EthernetTrailer::CheckFcs (Ptr<Packet> p) const
{
if (!m_calcFcs)
{
return true;
}
else
{
NS_LOG_WARN ("FCS calculation is not yet enabled");
return false;
}
}
void
EthernetTrailer::CalcFcs (Ptr<Packet> p)
{
NS_LOG_WARN ("FCS calculation is not yet enabled");
}
void
EthernetTrailer::SetFcs (uint32_t fcs)
{
m_fcs = fcs;
}
uint32_t
EthernetTrailer::GetFcs (void)
{
return m_fcs;
}
uint32_t
EthernetTrailer::GetTrailerSize (void) const
{
return GetSerializedSize();
}
TypeId
EthernetTrailer::GetTypeId (void)
{
static TypeId tid = TypeId ("ns3::EthernetTrailer")
.SetParent<Trailer> ()
.AddConstructor<EthernetTrailer> ()
;
return tid;
}
TypeId
EthernetTrailer::GetInstanceTypeId (void) const
{
return GetTypeId ();
}
void
EthernetTrailer::Print (std::ostream &os) const
{
os << "fcs=" << m_fcs;
}
uint32_t
EthernetTrailer::GetSerializedSize (void) const
{
return 4;
}
void
EthernetTrailer::Serialize (Buffer::Iterator end) const
{
Buffer::Iterator i = end;
i.Prev(GetSerializedSize());
i.WriteU32 (m_fcs);
}
uint32_t
EthernetTrailer::Deserialize (Buffer::Iterator end)
{
Buffer::Iterator i = end;
uint32_t size = GetSerializedSize();
i.Prev(size);
m_fcs = i.ReadU32 ();
return size;
}
}; // namespace ns3