ipv6-extension-header.h

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/*
 * Copyright (c) 2008-2009 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: David Gross <gdavid.devel@gmail.com>
 */
 
#ifndef IPV6_EXTENSION_HEADER_H
#define IPV6_EXTENSION_HEADER_H
 
#include "ipv6-option-header.h"
 
#include "ns3/header.h"
#include "ns3/ipv6-address.h"
 
#include <list>
#include <ostream>
#include <vector>
 
namespace ns3
{
 
class Ipv6ExtensionHeader : public Header
{
  public:
    static TypeId GetTypeId();
 
    TypeId GetInstanceTypeId() const override;
 
    Ipv6ExtensionHeader();
 
    ~Ipv6ExtensionHeader() override;
 
    void SetNextHeader(uint8_t nextHeader);
 
    uint8_t GetNextHeader() const;
 
    void SetLength(uint16_t length);
 
    uint16_t GetLength() const;
 
    void Print(std::ostream& os) const override;
 
    uint32_t GetSerializedSize() const override;
 
    void Serialize(Buffer::Iterator start) const override;
 
    uint32_t Deserialize(Buffer::Iterator start) override;
 
  protected:
    uint8_t m_length;
 
  private:
    uint8_t m_nextHeader;
 
    Buffer m_data;
};
 
class OptionField
{
  public:
    OptionField(uint32_t optionsOffset);
 
    ~OptionField();
 
    uint32_t GetSerializedSize() const;
 
    void Serialize(Buffer::Iterator start) const;
 
    uint32_t Deserialize(Buffer::Iterator start, uint32_t length);
 
    void AddOption(const Ipv6OptionHeader& option);
 
    uint32_t GetOptionsOffset() const;
 
    Buffer GetOptionBuffer();
 
  private:
    uint32_t CalculatePad(Ipv6OptionHeader::Alignment alignment) const;
 
    Buffer m_optionData;
 
    uint32_t m_optionsOffset;
};
 
class Ipv6ExtensionHopByHopHeader : public Ipv6ExtensionHeader, public OptionField
{
  public:
    static TypeId GetTypeId();
 
    TypeId GetInstanceTypeId() const override;
 
    Ipv6ExtensionHopByHopHeader();
 
    ~Ipv6ExtensionHopByHopHeader() override;
 
    void Print(std::ostream& os) const override;
 
    uint32_t GetSerializedSize() const override;
 
    void Serialize(Buffer::Iterator start) const override;
 
    uint32_t Deserialize(Buffer::Iterator start) override;
};
 
class Ipv6ExtensionDestinationHeader : public Ipv6ExtensionHeader, public OptionField
{
  public:
    static TypeId GetTypeId();
 
    TypeId GetInstanceTypeId() const override;
 
    Ipv6ExtensionDestinationHeader();
 
    ~Ipv6ExtensionDestinationHeader() override;
 
    void Print(std::ostream& os) const override;
 
    uint32_t GetSerializedSize() const override;
 
    void Serialize(Buffer::Iterator start) const override;
 
    uint32_t Deserialize(Buffer::Iterator start) override;
};
 
class Ipv6ExtensionFragmentHeader : public Ipv6ExtensionHeader
{
  public:
    static TypeId GetTypeId();
 
    TypeId GetInstanceTypeId() const override;
 
    Ipv6ExtensionFragmentHeader();
 
    ~Ipv6ExtensionFragmentHeader() override;
 
    void SetOffset(uint16_t offset);
 
    uint16_t GetOffset() const;
 
    void SetMoreFragment(bool moreFragment);
 
    bool GetMoreFragment() const;
 
    void SetIdentification(uint32_t identification);
 
    uint32_t GetIdentification() const;
 
    void Print(std::ostream& os) const override;
 
    uint32_t GetSerializedSize() const override;
 
    void Serialize(Buffer::Iterator start) const override;
 
    uint32_t Deserialize(Buffer::Iterator start) override;
 
  private:
    uint16_t m_offset;
 
    uint32_t m_identification;
};
 
class Ipv6ExtensionRoutingHeader : public Ipv6ExtensionHeader
{
  public:
    static TypeId GetTypeId();
 
    TypeId GetInstanceTypeId() const override;
 
    Ipv6ExtensionRoutingHeader();
 
    ~Ipv6ExtensionRoutingHeader() override;
 
    void SetTypeRouting(uint8_t typeRouting);
 
    uint8_t GetTypeRouting() const;
 
    void SetSegmentsLeft(uint8_t segmentsLeft);
 
    uint8_t GetSegmentsLeft() const;
 
    void Print(std::ostream& os) const override;
 
    uint32_t GetSerializedSize() const override;
 
    void Serialize(Buffer::Iterator start) const override;
 
    uint32_t Deserialize(Buffer::Iterator start) override;
 
  private:
    uint8_t m_typeRouting;
 
    uint8_t m_segmentsLeft;
};
 
class Ipv6ExtensionLooseRoutingHeader : public Ipv6ExtensionRoutingHeader
{
  public:
    static TypeId GetTypeId();
 
    TypeId GetInstanceTypeId() const override;
 
    Ipv6ExtensionLooseRoutingHeader();
 
    ~Ipv6ExtensionLooseRoutingHeader() override;
 
    void SetNumberAddress(uint8_t n);
 
    void SetRoutersAddress(std::vector<Ipv6Address> routersAddress);
 
    std::vector<Ipv6Address> GetRoutersAddress() const;
 
    void SetRouterAddress(uint8_t index, Ipv6Address addr);
 
    Ipv6Address GetRouterAddress(uint8_t index) const;
 
    void Print(std::ostream& os) const override;
 
    uint32_t GetSerializedSize() const override;
 
    void Serialize(Buffer::Iterator start) const override;
 
    uint32_t Deserialize(Buffer::Iterator start) override;
 
  private:
    typedef std::vector<Ipv6Address> VectorIpv6Address_t;
 
    VectorIpv6Address_t m_routersAddress;
};
 
class Ipv6ExtensionESPHeader : public Ipv6ExtensionHeader
{
  public:
    static TypeId GetTypeId();
 
    TypeId GetInstanceTypeId() const override;
 
    Ipv6ExtensionESPHeader();
 
    ~Ipv6ExtensionESPHeader() override;
 
    void Print(std::ostream& os) const override;
 
    uint32_t GetSerializedSize() const override;
 
    void Serialize(Buffer::Iterator start) const override;
 
    uint32_t Deserialize(Buffer::Iterator start) override;
};
 
class Ipv6ExtensionAHHeader : public Ipv6ExtensionHeader
{
  public:
    static TypeId GetTypeId();
 
    TypeId GetInstanceTypeId() const override;
 
    Ipv6ExtensionAHHeader();
 
    ~Ipv6ExtensionAHHeader() override;
 
    void Print(std::ostream& os) const override;
 
    uint32_t GetSerializedSize() const override;
 
    void Serialize(Buffer::Iterator start) const override;
 
    uint32_t Deserialize(Buffer::Iterator start) override;
};
 
} // namespace ns3
 
#endif /* IPV6_EXTENSION_HEADER_H */