icmpv6-header.h

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/*
 * Copyright (c) 2007-2009 Strasbourg University
 *
 * SPDX-License-Identifier: GPL-2.0-only
 *
 * Author: Sebastien Vincent <vincent@clarinet.u-strasbg.fr>
 *         Mehdi Benamor <benamor.mehdi@ensi.rnu.tn>
 *         David Gross <gdavid.devel@gmail.com>
 */
 
#ifndef ICMPV6_HEADER_H
#define ICMPV6_HEADER_H
 
#include "ns3/header.h"
#include "ns3/ipv6-address.h"
#include "ns3/packet.h"
 
namespace ns3
{
 
/**
 * @ingroup icmpv6
 *
 * @brief ICMPv6 header.
 */
class Icmpv6Header : public Header
{
  public:
    /**
     * @brief ICMPv6 type code.
     */
    enum Type_e
    {
        ICMPV6_ERROR_DESTINATION_UNREACHABLE = 1,
        ICMPV6_ERROR_PACKET_TOO_BIG,
        ICMPV6_ERROR_TIME_EXCEEDED,
        ICMPV6_ERROR_PARAMETER_ERROR,
        ICMPV6_ECHO_REQUEST = 128,
        ICMPV6_ECHO_REPLY,
        ICMPV6_SUBSCRIBE_REQUEST,
        ICMPV6_SUBSCRIBE_REPORT,
        ICMPV6_SUBSCRIVE_END,
        ICMPV6_ND_ROUTER_SOLICITATION,
        ICMPV6_ND_ROUTER_ADVERTISEMENT,
        ICMPV6_ND_NEIGHBOR_SOLICITATION,
        ICMPV6_ND_NEIGHBOR_ADVERTISEMENT,
        ICMPV6_ND_REDIRECTION,
        ICMPV6_ROUTER_RENUMBER,
        ICMPV6_INFORMATION_REQUEST,
        ICMPV6_INFORMATION_RESPONSE,
        ICMPV6_INVERSE_ND_SOLICITATION,
        ICMPV6_INVERSE_ND_ADVERSTISEMENT,
        ICMPV6_MLDV2_SUBSCRIBE_REPORT,
        ICMPV6_MOBILITY_HA_DISCOVER_REQUEST,
        ICMPV6_MOBILITY_HA_DISCOVER_RESPONSE,
        ICMPV6_MOBILITY_MOBILE_PREFIX_SOLICITATION,
        ICMPV6_SECURE_ND_CERTIFICATE_PATH_SOLICITATION,
        ICMPV6_SECURE_ND_CERTIFICATE_PATH_ADVERTISEMENT,
        ICMPV6_EXPERIMENTAL_MOBILITY,
        ICMPV6_ND_DUPLICATE_ADDRESS_REQUEST = 157,
        ICMPV6_ND_DUPLICATE_ADDRESS_CONFIRM
    };
 
    /**
     * @brief ICMPv6 Option type code.
     */
    enum OptionType_e
    {
        ICMPV6_OPT_LINK_LAYER_SOURCE = 1,
        ICMPV6_OPT_LINK_LAYER_TARGET,
        ICMPV6_OPT_PREFIX,
        ICMPV6_OPT_REDIRECTED,
        ICMPV6_OPT_MTU,
        ICMPV6_OPT_EXTENDED_ADDRESS_REGISTRATION = 33,
        ICMPV6_OPT_SIXLOWPAN_CONTEXT,
        ICMPV6_OPT_AUTHORITATIVE_BORDER_ROUTER,
        ICMPV6_OPT_CAPABILITY_INDICATION
    };
 
    /**
     * @brief ICMPv6 error code : Destination Unreachable
     */
    enum ErrorDestinationUnreachable_e
    {
        ICMPV6_NO_ROUTE = 0,
        ICMPV6_ADM_PROHIBITED,
        ICMPV6_NOT_NEIGHBOUR,
        ICMPV6_ADDR_UNREACHABLE,
        ICMPV6_PORT_UNREACHABLE
    };
 
    /**
     * @brief ICMPv6 error code : Time Exceeded
     */
    enum ErrorTimeExceeded_e
    {
        ICMPV6_HOPLIMIT = 0,
        ICMPV6_FRAGTIME
    };
 
    /**
     * @brief ICMPv6 error code : Parameter Error
     */
    enum ErrorParameterError_e
    {
        ICMPV6_MALFORMED_HEADER = 0,
        ICMPV6_UNKNOWN_NEXT_HEADER,
        ICMPV6_UNKNOWN_OPTION
    };
 
    /**
     * @brief Get the UID of this class.
     * @return UID
     */
    static TypeId GetTypeId();
 
    /**
     * @brief Get the instance type ID.
     * @return instance type ID
     */
    TypeId GetInstanceTypeId() const override;
 
    /**
     * @brief Constructor.
     */
    Icmpv6Header();
 
    /**
     * @brief Destructor.
     */
    ~Icmpv6Header() override;
 
    /**
     * @brief Get the type field.
     * @return type of ICMPv6 message
     */
    uint8_t GetType() const;
 
    /**
     * @brief Set the type.
     * @param type type to set
     */
    void SetType(uint8_t type);
 
    /**
     * @brief Get the code field.
     * @return code of ICMPv6 message
     */
    uint8_t GetCode() const;
 
    /**
     * @brief Set the code field.
     * @param code code to set
     */
    void SetCode(uint8_t code);
 
    /**
     * @brief Get the checksum.
     * @return checksum
     */
    uint16_t GetChecksum() const;
 
    /**
     * @brief Set the checksum.
     * @param checksum to set
     */
    void SetChecksum(uint16_t checksum);
 
    /**
     * @brief Print information.
     * @param os output stream
     */
    void Print(std::ostream& os) const override;
 
    /**
     * @brief Get the serialized size.
     * @return serialized size
     */
    uint32_t GetSerializedSize() const override;
 
    /**
     * @brief Serialize the packet.
     * @param start start offset
     */
    void Serialize(Buffer::Iterator start) const override;
 
    /**
     * @brief Deserialize the packet.
     * @param start start offset
     * @return length of packet
     */
    uint32_t Deserialize(Buffer::Iterator start) override;
 
    /**
     * @brief Calculate pseudo header checksum for IPv6.
     * @param src source address
     * @param dst destination address
     * @param length length
     * @param protocol the protocol number to use in the
     * underlying IPv6 packet.
     */
    void CalculatePseudoHeaderChecksum(Ipv6Address src,
                                       Ipv6Address dst,
                                       uint16_t length,
                                       uint8_t protocol);
 
  protected:
    /**
     * @brief Checksum enable or not.
     */
    bool m_calcChecksum;
 
    /**
     * @brief The checksum.
     */
    uint16_t m_checksum;
 
  private:
    /**
     * @brief The type.
     */
    uint8_t m_type;
 
    /**
     * @brief The code.
     */
    uint8_t m_code;
};
 
/**
 * @ingroup icmpv6
 *
 * @brief ICMPv6 option header.
 */
class Icmpv6OptionHeader : public Header
{
  public:
    /**
     * @brief Get the UID of this class.
     * @return UID
     */
    static TypeId GetTypeId();
 
    /**
     * @brief Get the instance type ID.
     * @return instance type ID
     */
    TypeId GetInstanceTypeId() const override;
 
    /**
     * @brief Constructor.
     */
    Icmpv6OptionHeader();
 
    /**
     * @brief Destructor.
     */
    ~Icmpv6OptionHeader() override;
 
    /**
     * @brief Get the type of the option.
     * @return type
     */
    uint8_t GetType() const;
 
    /**
     * @brief Set the type of the option.
     * @param type the type to set
     */
    void SetType(uint8_t type);
 
    /**
     * @brief Get the length of the option in 8 bytes unit.
     * @return length of the option
     */
    uint8_t GetLength() const;
 
    /**
     * @brief Set the length of the option.
     * @param len length value to set
     */
    void SetLength(uint8_t len);
 
    /**
     * @brief Print information.
     * @param os output stream
     */
    void Print(std::ostream& os) const override;
 
    /**
     * @brief Get the serialized size.
     * @return serialized size
     */
    uint32_t GetSerializedSize() const override;
 
    /**
     * @brief Serialize the packet.
     * @param start start offset
     */
    void Serialize(Buffer::Iterator start) const override;
 
    /**
     * @brief Deserialize the packet.
     * @param start start offset
     * @return length of packet
     */
    uint32_t Deserialize(Buffer::Iterator start) override;
 
  private:
    /**
     * @brief The type.
     */
    uint8_t m_type;
 
    /**
     * @brief The length.
     */
    uint8_t m_len;
};
 
/**
 * @ingroup icmpv6
 *
 * @brief ICMPv6 Neighbor Solicitation header.
 */
class Icmpv6NS : public Icmpv6Header
{
  public:
    /**
     * @brief Constructor.
     * @param target target IPv6 address
     */
    Icmpv6NS(Ipv6Address target);
 
    /**
     * @brief Constructor.
     */
    Icmpv6NS();
 
    /**
     * @brief Destructor.
     */
    ~Icmpv6NS() override;
 
    /**
     * @brief Get the UID of this class.
     * @return UID
     */
    static TypeId GetTypeId();
 
    /**
     * @brief Get the instance type ID.
     * @return instance type ID
     */
    TypeId GetInstanceTypeId() const override;
 
    /**
     * @brief Get the reserved field.
     * @return reserved value
     */
    uint32_t GetReserved() const;
 
    /**
     * @brief Set the reserved field.
     * @param reserved the reserved value
     */
    void SetReserved(uint32_t reserved);
 
    /**
     * @brief Get the IPv6 target field.
     * @return IPv6 address
     */
    Ipv6Address GetIpv6Target() const;
 
    /**
     * @brief Set the IPv6 target field.
     * @param target IPv6 address
     */
    void SetIpv6Target(Ipv6Address target);
 
    /**
     * @brief Print information.
     * @param os output stream
     */
    void Print(std::ostream& os) const override;
 
    /**
     * @brief Get the serialized size.
     * @return serialized size
     */
    uint32_t GetSerializedSize() const override;
 
    /**
     * @brief Serialize the packet.
     * @param start start offset
     */
    void Serialize(Buffer::Iterator start) const override;
 
    /**
     * @brief Deserialize the packet.
     * @param start start offset
     * @return length of packet
     */
    uint32_t Deserialize(Buffer::Iterator start) override;
 
  private:
    /**
     * @brief The reserved value.
     */
    uint32_t m_reserved;
 
    /**
     * @brief The IPv6 target address.
     */
    Ipv6Address m_target;
};
 
/**
 * @ingroup icmpv6
 *
 * @brief ICMPv6 Neighbor Advertisement header.
 */
class Icmpv6NA : public Icmpv6Header
{
  public:
    /**
     * @brief Constructor.
     */
    Icmpv6NA();
 
    /**
     * @brief Destructor.
     */
    ~Icmpv6NA() override;
 
    /**
     * @brief Get the UID of this class.
     * @return UID
     */
    static TypeId GetTypeId();
 
    /**
     * @brief Get the instance type ID.
     * @return instance type ID
     */
    TypeId GetInstanceTypeId() const override;
 
    /**
     * @brief Get the reserved field.
     * @return reserved value
     */
    uint32_t GetReserved() const;
 
    /**
     * @brief Set the reserved field.
     * @param reserved the reserved value
     */
    void SetReserved(uint32_t reserved);
 
    /**
     * @brief Get the IPv6 target field.
     * @return IPv6 address
     */
    Ipv6Address GetIpv6Target() const;
 
    /**
     * @brief Set the IPv6 target field.
     * @param target IPv6 address
     */
    void SetIpv6Target(Ipv6Address target);
 
    /**
     * @brief Get the R flag.
     * @return R flag
     */
    bool GetFlagR() const;
 
    /**
     * @brief Set the R flag.
     * @param r value
     */
    void SetFlagR(bool r);
 
    /**
     * @brief Get the S flag.
     * @return S flag
     */
    bool GetFlagS() const;
 
    /**
     * @brief Set the S flag.
     * @param s value
     */
    void SetFlagS(bool s);
 
    /**
     * @brief Get the O flag.
     * @return O flag
     */
    bool GetFlagO() const;
 
    /**
     * @brief Set the O flag.
     * @param o value
     */
    void SetFlagO(bool o);
 
    /**
     * @brief Print information.
     * @param os output stream
     */
    void Print(std::ostream& os) const override;
 
    /**
     * @brief Get the serialized size.
     * @return serialized size
     */
    uint32_t GetSerializedSize() const override;
 
    /**
     * @brief Serialize the packet.
     * @param start start offset
     */
    void Serialize(Buffer::Iterator start) const override;
 
    /**
     * @brief Deserialize the packet.
     * @param start start offset
     * @return length of packet
     */
    uint32_t Deserialize(Buffer::Iterator start) override;
 
  private:
    /**
     * @brief The R flag.
     */
    bool m_flagR;
 
    /**
     * @brief The O flag.
     */
    bool m_flagS;
 
    /**
     * @brief The M flag.
     */
    bool m_flagO;
 
    /**
     * @brief The reserved value.
     */
    uint32_t m_reserved;
 
    /**
     * @brief The IPv6 target address.
     */
    Ipv6Address m_target;
};
 
/**
 * @ingroup icmpv6
 *
 * @brief ICMPv6 Router Advertisement header.
 */
class Icmpv6RA : public Icmpv6Header
{
  public:
    /**
     * @brief Constructor.
     */
    Icmpv6RA();
 
    /**
     * @brief Destructor.
     */
    ~Icmpv6RA() override;
 
    /**
     * @brief Get the UID of this class.
     * @return UID
     */
    static TypeId GetTypeId();
 
    /**
     * @brief Get the instance type ID.
     * @return instance type ID
     */
    TypeId GetInstanceTypeId() const override;
 
    /**
     * @brief Set the IPv6 maximum number of jumps.
     * @param m maximum jumps
     */
    void SetCurHopLimit(uint8_t m);
 
    /**
     * @brief Get the IPv6 maximum number of jumps.
     * @return maximum jumps
     */
    uint8_t GetCurHopLimit() const;
 
    /**
     * @brief Set the node Life time (Neighbor Discovery).
     * @param l life time
     */
    void SetLifeTime(uint16_t l);
 
    /**
     * @brief Get the node Life time (Neighbor Discovery).
     * @return life time
     */
    uint16_t GetLifeTime() const;
 
    /**
     * @brief Set the node Reachable time (Neighbor Discovery).
     * @param r Reachable time
     */
    void SetReachableTime(uint32_t r);
 
    /**
     * @brief Get the node Reachable time (Neighbor Discovery).
     * @return reachable time
     */
    uint32_t GetReachableTime() const;
 
    /**
     * @brief Set the node Retransmission time (Neighbor Discovery).
     * @param r Retransmission time
     */
    void SetRetransmissionTime(uint32_t r);
 
    /**
     * @brief Get the node Retransmission time (Neighbor Discovery).
     * @return retransmission time
     */
    uint32_t GetRetransmissionTime() const;
 
    /**
     * @brief Get the M flag.
     * @return M flag
     */
    bool GetFlagM() const;
 
    /**
     * @brief Set the M flag.
     * @param m value
     */
    void SetFlagM(bool m);
 
    /**
     * @brief Get the O flag.
     * @return O flag
     */
    bool GetFlagO() const;
 
    /**
     * @brief Set the O flag.
     * @param o value
     */
    void SetFlagO(bool o);
 
    /**
     * @brief Get the H flag.
     * @return H flag
     */
    bool GetFlagH() const;
 
    /**
     * @brief Set the H flag.
     * @param h value
     */
    void SetFlagH(bool h);
 
    /**
     * @brief Print information.
     * @param os output stream
     */
    void Print(std::ostream& os) const override;
 
    /**
     * @brief Get the serialized size.
     * @return serialized size
     */
    uint32_t GetSerializedSize() const override;
 
    /**
     * @brief Serialize the packet.
     * @param start start offset
     */
    void Serialize(Buffer::Iterator start) const override;
 
    /**
     * @brief Deserialize the packet.
     * @param start start offset
     * @return length of packet
     */
    uint32_t Deserialize(Buffer::Iterator start) override;
 
  private:
    /**
     * @brief The M flag.
     */
    bool m_flagM;
 
    /**
     * @brief The O flag.
     */
    bool m_flagO;
 
    /**
     * @brief The H flag.
     */
    bool m_flagH;
 
    /**
     * @brief The lifetime value.
     */
    uint16_t m_LifeTime;
 
    /**
     * @brief The reachable time value.
     */
    uint32_t m_ReachableTime;
 
    /**
     * @brief The retransmission timer.
     */
    uint32_t m_RetransmissionTimer;
 
    /**
     * @brief The max jumps.
     */
    uint8_t m_curHopLimit;
};
 
/**
 * @ingroup icmpv6
 *
 * @brief ICMPv6 Router Solicitation header.
 */
class Icmpv6RS : public Icmpv6Header
{
  public:
    /**
     * @brief Constructor.
     */
    Icmpv6RS();
 
    /**
     * @brief Destructor.
     */
    ~Icmpv6RS() override;
 
    /**
     * @brief Get the UID of this class.
     * @return UID
     */
    static TypeId GetTypeId();
 
    /**
     * @brief Get the instance type ID.
     * @return instance type ID
     */
    TypeId GetInstanceTypeId() const override;
 
    /**
     * @brief Get the reserved field.
     * @return reserved value
     */
    uint32_t GetReserved() const;
 
    /**
     * @brief Set the reserved field.
     * @param reserved the reserved value
     */
    void SetReserved(uint32_t reserved);
 
    /**
     * @brief Print information.
     * @param os output stream
     */
    void Print(std::ostream& os) const override;
 
    /**
     * @brief Get the serialized size.
     * @return serialized size
     */
    uint32_t GetSerializedSize() const override;
 
    /**
     * @brief Serialize the packet.
     * @param start start offset
     */
    void Serialize(Buffer::Iterator start) const override;
 
    /**
     * @brief Deserialize the packet.
     * @param start start offset
     * @return length of packet
     */
    uint32_t Deserialize(Buffer::Iterator start) override;
 
  private:
    /**
     * @brief The reserved value.
     */
    uint32_t m_reserved;
};
 
/**
 * @ingroup icmpv6
 *
 * @brief ICMPv6 Redirection header.
 */
class Icmpv6Redirection : public Icmpv6Header
{
  public:
    /**
     * @brief Constructor.
     */
    Icmpv6Redirection();
 
    /**
     * @brief Destructor.
     */
    ~Icmpv6Redirection() override;
 
    /**
     * @brief Get the UID of this class.
     * @return UID
     */
    static TypeId GetTypeId();
 
    /**
     * @brief Get the instance type ID.
     * @return instance type ID
     */
    TypeId GetInstanceTypeId() const override;
 
    /**
     * @brief Get the IPv6 target address.
     * @return the IPv6 target address
     */
    Ipv6Address GetTarget() const;
 
    /**
     * @brief Set the IPv6 target address.
     * @param target IPv6 target address
     */
    void SetTarget(Ipv6Address target);
 
    /**
     * @brief Get the IPv6 destination address.
     * @return the IPv6 destination address
     */
    Ipv6Address GetDestination() const;
 
    /**
     * @brief Set the IPv6 destination address.
     * @param destination IPv6 destination address
     */
    void SetDestination(Ipv6Address destination);
 
    /**
     * @brief Print information.
     * @param os output stream
     */
    void Print(std::ostream& os) const override;
 
    /**
     * @brief Get the serialized size.
     * @return serialized size
     */
    uint32_t GetSerializedSize() const override;
 
    /**
     * @brief Serialize the packet.
     * @param start start offset
     */
    void Serialize(Buffer::Iterator start) const override;
 
    /**
     * @brief Deserialize the packet.
     * @param start start offset
     * @return length of packet
     */
    uint32_t Deserialize(Buffer::Iterator start) override;
 
    /**
     * @brief Get the reserved field.
     * @return reserved value
     */
    uint32_t GetReserved() const;
 
    /**
     * @brief Set the reserved field.
     * @param reserved the reserved value
     */
    void SetReserved(uint32_t reserved);
 
  private:
    /**
     * @brief IPv6 target address.
     */
    Ipv6Address m_target;
 
    /**
     * @brief IPv6 destination address.
     */
    Ipv6Address m_destination;
 
    /**
     * @brief Reserved value.
     */
    uint32_t m_reserved;
};
 
/**
 * @ingroup icmpv6
 *
 * @brief ICMPv6 Echo message.
 */
class Icmpv6Echo : public Icmpv6Header
{
  public:
    /**
     * @brief Get the UID of this class.
     * @return UID
     */
    static TypeId GetTypeId();
 
    /**
     * @brief Get the instance type ID.
     * @return instance type ID
     */
    TypeId GetInstanceTypeId() const override;
 
    /**
     * @brief Default constructor.
     */
    Icmpv6Echo();
 
    /**
     * @brief Constructor.
     * @param request request or reply message
     */
    Icmpv6Echo(bool request);
 
    /**
     * @brief Destructor.
     */
    ~Icmpv6Echo() override;
 
    /**
     * @brief Get the ID of the packet.
     * @return id
     */
    uint16_t GetId() const;
 
    /**
     * @brief Set the ID of the packet.
     * @param id id to set
     */
    void SetId(uint16_t id);
 
    /**
     * @brief Get the sequence number.
     * @return sequence number
     */
    uint16_t GetSeq() const;
 
    /**
     * @brief Set the sequence number.
     * @param seq sequence to set
     */
    void SetSeq(uint16_t seq);
 
    /**
     * @brief Print information.
     * @param os output stream
     */
    void Print(std::ostream& os) const override;
 
    /**
     * @brief Get the serialized size.
     * @return serialized size
     */
    uint32_t GetSerializedSize() const override;
 
    /**
     * @brief Serialize the packet.
     * @param start start offset
     */
    void Serialize(Buffer::Iterator start) const override;
 
    /**
     * @brief Deserialize the packet.
     * @param start start offset
     * @return length of packet
     */
    uint32_t Deserialize(Buffer::Iterator start) override;
 
  private:
    /**
     * @brief ID of the packet (to distinguish response between many ping program).
     */
    uint16_t m_id;
 
    /**
     * @brief Sequence number (to distinguish response).
     */
    uint16_t m_seq;
};
 
/**
 * @ingroup icmpv6
 *
 * @brief ICMPv6 Error Destination Unreachable header.
 */
class Icmpv6DestinationUnreachable : public Icmpv6Header
{
  public:
    /**
     * @brief Constructor.
     */
    Icmpv6DestinationUnreachable();
 
    /**
     * @brief Destructor.
     */
    ~Icmpv6DestinationUnreachable() override;
 
    /**
     * @brief Get the UID of this class.
     * @return UID
     */
    static TypeId GetTypeId();
 
    /**
     * @brief Get the instance type ID.
     * @return instance type ID
     */
    TypeId GetInstanceTypeId() const override;
 
    /**
     * @brief Set the incorrect packet.
     * @param p the incorrect packet
     */
    void SetPacket(Ptr<Packet> p);
 
    /**
     * @brief Print information.
     * @param os output stream
     */
    void Print(std::ostream& os) const override;
 
    /**
     * @brief Get the serialized size.
     * @return serialized size
     */
    uint32_t GetSerializedSize() const override;
 
    /**
     * @brief Serialize the packet.
     * @param start start offset
     */
    void Serialize(Buffer::Iterator start) const override;
 
    /**
     * @brief Deserialize the packet.
     * @param start start offset
     * @return length of packet
     */
    uint32_t Deserialize(Buffer::Iterator start) override;
 
  private:
    /**
     * @brief The incorrect Packet.
     */
    Ptr<Packet> m_packet;
};
 
/**
 * @ingroup icmpv6
 *
 * @brief ICMPv6 Error Too Big header.
 */
class Icmpv6TooBig : public Icmpv6Header
{
  public:
    /**
     * @brief Constructor.
     */
    Icmpv6TooBig();
 
    /**
     * @brief Destructor.
     */
    ~Icmpv6TooBig() override;
 
    /**
     * @brief Get the UID of this class.
     * @return UID
     */
    static TypeId GetTypeId();
 
    /**
     * @brief Get the instance type ID.
     * @return instance type ID
     */
    TypeId GetInstanceTypeId() const override;
 
    /**
     * @brief Set the incorrect packet.
     * @param p the incorrect packet
     */
    void SetPacket(Ptr<Packet> p);
 
    /**
     * @brief Get the MTU field.
     * @return MTU value
     */
    uint32_t GetMtu() const;
 
    /**
     * @brief Set the MTU.
     * @param mtu the MTU
     */
    void SetMtu(uint32_t mtu);
 
    /**
     * @brief Print information.
     * @param os output stream
     */
    void Print(std::ostream& os) const override;
 
    /**
     * @brief Get the serialized size.
     * @return serialized size
     */
    uint32_t GetSerializedSize() const override;
 
    /**
     * @brief Serialize the packet.
     * @param start start offset
     */
    void Serialize(Buffer::Iterator start) const override;
 
    /**
     * @brief Deserialize the packet.
     * @param start start offset
     * @return length of packet
     */
    uint32_t Deserialize(Buffer::Iterator start) override;
 
  private:
    /**
     * @brief the incorrect packet.
     */
    Ptr<Packet> m_packet;
 
    /**
     * @brief The MTU value.
     */
    uint32_t m_mtu;
};
 
/**
 * @ingroup icmpv6
 *
 * @brief ICMPv6 Error Time Exceeded header.
 */
class Icmpv6TimeExceeded : public Icmpv6Header
{
  public:
    /**
     * @brief Constructor.
     */
    Icmpv6TimeExceeded();
 
    /**
     * @brief Destructor.
     */
    ~Icmpv6TimeExceeded() override;
 
    /**
     * @brief Get the UID of this class.
     * @return UID
     */
    static TypeId GetTypeId();
 
    /**
     * @brief Get the instance type ID.
     * @return instance type ID
     */
    TypeId GetInstanceTypeId() const override;
 
    /**
     * @brief Set the incorrect packet.
     * @param p the incorrect packet
     */
    void SetPacket(Ptr<Packet> p);
 
    /**
     * @brief Print information.
     * @param os output stream
     */
    void Print(std::ostream& os) const override;
 
    /**
     * @brief Get the serialized size.
     * @return serialized size
     */
    uint32_t GetSerializedSize() const override;
 
    /**
     * @brief Serialize the packet.
     * @param start start offset
     */
    void Serialize(Buffer::Iterator start) const override;
 
    /**
     * @brief Deserialize the packet.
     * @param start start offset
     * @return length of packet
     */
    uint32_t Deserialize(Buffer::Iterator start) override;
 
  private:
    /**
     * @brief The incorrect packet.
     */
    Ptr<Packet> m_packet;
};
 
/**
 * @ingroup icmpv6
 *
 * @brief ICMPv6 Error Parameter Error header.
 */
class Icmpv6ParameterError : public Icmpv6Header
{
  public:
    /**
     * @brief Constructor.
     */
    Icmpv6ParameterError();
 
    /**
     * @brief Destructor.
     */
    ~Icmpv6ParameterError() override;
 
    /**
     * @brief Get the UID of this class.
     * @return UID
     */
    static TypeId GetTypeId();
 
    /**
     * @brief Get the instance type ID.
     * @return instance type ID
     */
    TypeId GetInstanceTypeId() const override;
 
    /**
     * @brief Set the incorrect packet.
     * @param p the incorrect packet
     */
    void SetPacket(Ptr<Packet> p);
 
    /**
     * @brief Get the pointer field.
     * @return pointer value
     */
    uint32_t GetPtr() const;
 
    /**
     * @brief Set the pointer field.
     * @param ptr byte where the error is located in the incorrect packet
     */
    void SetPtr(uint32_t ptr);
 
    /**
     * @brief Print information.
     * @param os output stream
     */
    void Print(std::ostream& os) const override;
 
    /**
     * @brief Get the serialized size.
     * @return serialized size
     */
    uint32_t GetSerializedSize() const override;
 
    /**
     * @brief Serialize the packet.
     * @param start start offset
     */
    void Serialize(Buffer::Iterator start) const override;
 
    /**
     * @brief Deserialize the packet.
     * @param start start offset
     * @return length of packet
     */
    uint32_t Deserialize(Buffer::Iterator start) override;
 
  private:
    /**
     * @brief The incorrect packet.
     */
    Ptr<Packet> m_packet;
 
    /**
     * @brief The pointer field.
     */
    uint32_t m_ptr;
};
 
/**
 * @ingroup icmpv6
 *
 * @brief ICMPv6 MTU option.
 */
class Icmpv6OptionMtu : public Icmpv6OptionHeader
{
  public:
    /**
     * @brief Constructor.
     */
    Icmpv6OptionMtu();
 
    /**
     * @brief Constructor.
     * @param mtu MTU used.
     */
    Icmpv6OptionMtu(uint32_t mtu);
 
    /**
     * @brief Destructor.
     */
    ~Icmpv6OptionMtu() override;
 
    /**
     * @brief Get the UID of this class.
     * @return UID
     */
    static TypeId GetTypeId();
 
    /**
     * @brief Get the instance type ID.
     * @return instance type ID
     */
    TypeId GetInstanceTypeId() const override;
 
    /**
     * @brief Get the reserved field.
     * @return the reserved value
     */
    uint16_t GetReserved() const;
 
    /**
     * @brief Set the reserved field.
     * @param reserved the reserved value
     */
    void SetReserved(uint16_t reserved);
 
    /**
     * @brief Get the MTU.
     * @return the MTU value
     */
    uint32_t GetMtu() const;
 
    /**
     * @brief Set the MTU.
     * @param mtu the MTU to set
     */
    void SetMtu(uint32_t mtu);
 
    /**
     * @brief Print information.
     * @param os output stream
     */
    void Print(std::ostream& os) const override;
 
    /**
     * @brief Get the serialized size.
     * @return serialized size
     */
    uint32_t GetSerializedSize() const override;
 
    /**
     * @brief Serialize the packet.
     * @param start start offset
     */
    void Serialize(Buffer::Iterator start) const override;
 
    /**
     * @brief Deserialize the packet.
     * @param start start offset
     * @return length of packet
     */
    uint32_t Deserialize(Buffer::Iterator start) override;
 
  private:
    /**
     * @brief The reserved value
     */
    uint16_t m_reserved;
 
    /**
     * @brief The MTU value.
     */
    uint32_t m_mtu;
};
 
/**
 * @ingroup icmpv6
 *
 * @brief ICMPv6 Option Prefix Information.
 */
class Icmpv6OptionPrefixInformation : public Icmpv6OptionHeader
{
  public:
    /**
     * @brief Constructor.
     */
    Icmpv6OptionPrefixInformation();
 
    /**
     * @brief Constructor.
     * @param network prefix
     * @param prefixlen prefix length
     */
    Icmpv6OptionPrefixInformation(Ipv6Address network, uint8_t prefixlen);
 
    /**
     * @brief Destructor.
     */
    ~Icmpv6OptionPrefixInformation() override;
 
    /**
     * @brief Get the UID of this class.
     * @return UID
     */
    static TypeId GetTypeId();
 
    /**
     * @brief Get the instance type ID.
     * @return instance type ID
     */
    TypeId GetInstanceTypeId() const override;
 
    /**
     * @brief Icmpv6 Option Prefix Information flag field values
     */
    enum Flags_t
    {
        NONE = 0,         //!< No flags
        ROUTERADDR = 32,  //!< Router Address
        AUTADDRCONF = 64, //!< Autonomous Address Configuration
        ONLINK = 128      //!< On-link
    };
 
    /**
     * @brief Get the prefix length.
     * @return prefix length
     */
    uint8_t GetPrefixLength() const;
 
    /**
     * @brief Set the prefix length.
     * @param prefixLength the prefix length
     */
    void SetPrefixLength(uint8_t prefixLength);
 
    /**
     * @brief Get the flags.
     * @return the flags.
     */
    uint8_t GetFlags() const;
 
    /**
     * @brief Set the flags.
     * @param flags the flags to set
     */
    void SetFlags(uint8_t flags);
 
    /**
     * @brief Get the valid time of the information.
     * @return valid time
     */
    uint32_t GetValidTime() const;
 
    /**
     * @brief Set the valid time of the information.
     * @param validTime valid time
     */
    void SetValidTime(uint32_t validTime);
 
    /**
     * @brief Get the preferred time of the information.
     * @return preferred time
     */
    uint32_t GetPreferredTime() const;
 
    /**
     * @brief Set the preferred time of the information.
     * @param preferredTime preferred time
     */
    void SetPreferredTime(uint32_t preferredTime);
 
    /**
     * @brief Get the reserved field.
     * @return the reserved field (should be 0x00000000)
     */
    uint32_t GetReserved() const;
 
    /**
     * @brief Set the reserved field (normally it will be 0x00000000).
     * @param reserved reserved value
     */
    void SetReserved(uint32_t reserved);
 
    /**
     * @brief Get the IPv6 prefix.
     * @return IPv6 prefix
     */
    Ipv6Address GetPrefix() const;
 
    /**
     * @brief Set the IPv6 prefix.
     * @param prefix the IPv6 prefix
     */
    void SetPrefix(Ipv6Address prefix);
 
    /**
     * @brief Print information.
     * @param os output stream
     */
    void Print(std::ostream& os) const override;
 
    /**
     * @brief Get the serialized size.
     * @return serialized size
     */
    uint32_t GetSerializedSize() const override;
 
    /**
     * @brief Serialize the packet.
     * @param start start offset
     */
    void Serialize(Buffer::Iterator start) const override;
 
    /**
     * @brief Deserialize the packet.
     * @param start start offset
     * @return length of packet
     */
    uint32_t Deserialize(Buffer::Iterator start) override;
 
  private:
    /**
     * @brief The prefix value.
     */
    Ipv6Address m_prefix;
 
    /**
     * @brief The length of the prefix.
     */
    uint8_t m_prefixLength;
 
    /**
     * @brief The flags.
     */
    uint8_t m_flags;
 
    /**
     * @brief The valid time.
     */
    uint32_t m_validTime;
 
    /**
     * @brief The preferred time.
     */
    uint32_t m_preferredTime;
 
    /**
     * @brief The reserved field.
     */
    uint32_t m_reserved;
};
 
/**
 * @ingroup icmpv6
 *
 * @brief ICMPv6 link-layer address option.
 */
class Icmpv6OptionLinkLayerAddress : public Icmpv6OptionHeader
{
  public:
    /**
     * @brief Constructor.
     * @param source source hardware address or target hardware address for the option
     */
    Icmpv6OptionLinkLayerAddress(bool source);
 
    /**
     * @brief Get the UID of this class.
     * @return UID
     */
    static TypeId GetTypeId();
 
    /**
     * @brief Get the instance type ID.
     * @return instance type ID
     */
    TypeId GetInstanceTypeId() const override;
 
    /**
     * @brief Constructor.
     * @param source source hardware address or target hardware address for the option
     * @param addr hardware address
     */
    Icmpv6OptionLinkLayerAddress(bool source, Address addr);
 
    /**
     * @brief Constructor.
     */
    Icmpv6OptionLinkLayerAddress();
 
    /**
     * @brief Destructor.
     */
    ~Icmpv6OptionLinkLayerAddress() override;
 
    /**
     * @brief Get the hardware address.
     * @return the hardware address
     */
    Address GetAddress() const;
 
    /**
     * @brief Set the hardware address.
     * @param addr the address to set
     */
    void SetAddress(Address addr);
 
    /**
     * @brief Print information.
     * @param os output stream
     */
    void Print(std::ostream& os) const override;
 
    /**
     * @brief Get the serialized size.
     * @return serialized size
     */
    uint32_t GetSerializedSize() const override;
 
    /**
     * @brief Serialize the packet.
     * @param start start offset
     */
    void Serialize(Buffer::Iterator start) const override;
 
    /**
     * @brief Deserialize the packet.
     * @param start start offset
     * @return length of packet
     */
    uint32_t Deserialize(Buffer::Iterator start) override;
 
  private:
    /**
     * @brief The hardware address.
     */
    Address m_addr;
};
 
/**
 * @ingroup icmpv6
 *
 * @brief ICMPv6 redirected option.
 */
class Icmpv6OptionRedirected : public Icmpv6OptionHeader
{
  public:
    /**
     * @brief Get the UID of this class.
     * @return UID
     */
    static TypeId GetTypeId();
 
    /**
     * @brief Get the instance type ID.
     * @return instance type ID
     */
    TypeId GetInstanceTypeId() const override;
 
    /**
     * @brief Constructor.
     */
    Icmpv6OptionRedirected();
 
    /**
     * @brief Destructor.
     */
    ~Icmpv6OptionRedirected() override;
 
    /**
     * @brief Set the redirected packet.
     * @param packet the redirected packet
     */
    void SetPacket(Ptr<Packet> packet);
 
    /**
     * @brief Print information.
     * @param os output stream
     */
    void Print(std::ostream& os) const override;
 
    /**
     * @brief Get the serialized size.
     * @return serialized size
     */
    uint32_t GetSerializedSize() const override;
 
    /**
     * @brief Serialize the packet.
     * @param start start offset
     */
    void Serialize(Buffer::Iterator start) const override;
 
    /**
     * @brief Deserialize the packet.
     * @param start start offset
     * @return length of packet
     */
    uint32_t Deserialize(Buffer::Iterator start) override;
 
  private:
    /**
     * @brief The redirected packet.
     */
    Ptr<Packet> m_packet;
};
 
} /* namespace ns3 */
 
#endif /* ICMPV6_HEADER_H */