188 lines
4.0 KiB
C++
188 lines
4.0 KiB
C++
/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2007-2008 Louis Pasteur University
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Sebastien Vincent <vincent@clarinet.u-strasbg.fr>
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*/
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#include "ns3/assert.h"
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#include "ns3/log.h"
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#include "ns3/header.h"
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#include "address-utils.h"
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#include "ipv6-header.h"
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NS_LOG_COMPONENT_DEFINE ("Ipv6Header");
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namespace ns3 {
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NS_OBJECT_ENSURE_REGISTERED (Ipv6Header);
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Ipv6Header::Ipv6Header ()
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: m_version (6),
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m_trafficClass (0),
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m_flowLabel (1),
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m_payloadLength (0),
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m_nextHeader (0),
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m_hopLimit (0)
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{
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SetSourceAddress (Ipv6Address ("::"));
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SetDestinationAddress (Ipv6Address ("::"));
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}
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void Ipv6Header::SetTrafficClass (uint8_t traffic)
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{
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m_trafficClass = traffic;
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}
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uint8_t Ipv6Header::GetTrafficClass () const
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{
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return m_trafficClass;
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}
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void Ipv6Header::SetFlowLabel (uint32_t flow)
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{
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m_flowLabel = flow;
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}
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uint32_t Ipv6Header::GetFlowLabel () const
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{
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return m_flowLabel;
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}
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void Ipv6Header::SetPayloadLength (uint16_t len)
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{
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m_payloadLength = len;
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}
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uint16_t Ipv6Header::GetPayloadLength () const
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{
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return m_payloadLength;
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}
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void Ipv6Header::SetNextHeader (uint8_t next)
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{
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m_nextHeader = next;
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}
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uint8_t Ipv6Header::GetNextHeader () const
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{
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return m_nextHeader;
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}
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void Ipv6Header::SetHopLimit (uint8_t limit)
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{
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m_hopLimit = limit;
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}
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uint8_t Ipv6Header::GetHopLimit () const
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{
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return m_hopLimit;
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}
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void Ipv6Header::SetSourceAddress (Ipv6Address src)
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{
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m_sourceAddress = src;
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}
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Ipv6Address Ipv6Header::GetSourceAddress () const
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{
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return m_sourceAddress;
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}
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void Ipv6Header::SetDestinationAddress (Ipv6Address dst)
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{
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m_destinationAddress = dst;
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}
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Ipv6Address Ipv6Header::GetDestinationAddress () const
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{
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return m_destinationAddress;
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}
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TypeId Ipv6Header::GetTypeId (void)
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{
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static TypeId tid = TypeId ("ns3::Ipv6Header")
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.SetParent<Header> ()
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.AddConstructor<Ipv6Header> ()
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;
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return tid;
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}
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TypeId Ipv6Header::GetInstanceTypeId (void) const
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{
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return GetTypeId ();
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}
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void Ipv6Header::Print (std::ostream& os) const
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{
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os << "("
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"Version " << m_version << " "
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<< "Traffic class 0x" << std::hex << m_trafficClass << std::dec << " "
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<< "Flow Label 0x" << std::hex << m_flowLabel << std::dec << " "
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<< "Payload Length " << m_payloadLength << " "
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<< "Next Header " << std::dec << (uint32_t) m_nextHeader << " "
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<< "Hop Limit " << std::dec << (uint32_t)m_hopLimit << " )"
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<< m_sourceAddress << " > " << m_destinationAddress
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;
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}
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uint32_t Ipv6Header::GetSerializedSize () const
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{
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return 10 * 4;
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}
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void Ipv6Header::Serialize (Buffer::Iterator start) const
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{
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Buffer::Iterator i = start;
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uint32_t vTcFl = 0; /* version, Traffic Class and Flow Label fields */
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vTcFl= (6 << 28) | (m_trafficClass << 20) | (m_flowLabel);
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i.WriteHtonU32(vTcFl);
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i.WriteHtonU16(m_payloadLength);
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i.WriteU8(m_nextHeader);
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i.WriteU8(m_hopLimit);
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WriteTo (i, m_sourceAddress);
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WriteTo (i, m_destinationAddress);
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}
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uint32_t Ipv6Header::Deserialize (Buffer::Iterator start)
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{
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Buffer::Iterator i = start;
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uint32_t vTcFl = 0;
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vTcFl = i.ReadNtohU32();
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m_version = vTcFl >> 28;
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NS_ASSERT ((m_version) == 6);
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m_trafficClass = (uint8_t)((vTcFl >> 20) & 0x000000ff);
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m_flowLabel = vTcFl & 0xfff00000;
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m_payloadLength = i.ReadNtohU16();
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m_nextHeader = i.ReadU8();
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m_hopLimit = i.ReadU8();
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ReadFrom (i, m_sourceAddress);
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ReadFrom (i, m_destinationAddress);
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return GetSerializedSize ();
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}
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} /* namespace ns3 */
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