icmpv4.h

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/*
 * Copyright (c) 2008 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>
 */
 
#ifndef ICMPV4_H
#define ICMPV4_H
 
#include "ipv4-header.h"
 
#include "ns3/header.h"
#include "ns3/ptr.h"
 
#include <stdint.h>
 
namespace ns3
{
 
class Packet;
 
class Icmpv4Header : public Header
{
  public:
    enum Type_e
    {
        ICMPV4_ECHO_REPLY = 0,
        ICMPV4_DEST_UNREACH = 3,
        ICMPV4_ECHO = 8,
        ICMPV4_TIME_EXCEEDED = 11
    };
 
    void EnableChecksum();
 
    void SetType(uint8_t type);
 
    void SetCode(uint8_t code);
 
    uint8_t GetType() const;
    uint8_t GetCode() const;
 
    static TypeId GetTypeId();
    Icmpv4Header();
    ~Icmpv4Header() override;
 
    TypeId GetInstanceTypeId() const override;
    uint32_t GetSerializedSize() const override;
    void Serialize(Buffer::Iterator start) const override;
    uint32_t Deserialize(Buffer::Iterator start) override;
    void Print(std::ostream& os) const override;
 
  private:
    uint8_t m_type;      
    uint8_t m_code;      
    bool m_calcChecksum; 
};
 
class Icmpv4Echo : public Header
{
  public:
    void SetIdentifier(uint16_t id);
    void SetSequenceNumber(uint16_t seq);
    void SetData(Ptr<const Packet> data);
    uint16_t GetIdentifier() const;
    uint16_t GetSequenceNumber() const;
    uint32_t GetDataSize() const;
    uint32_t GetData(uint8_t payload[]) const;
 
    static TypeId GetTypeId();
    Icmpv4Echo();
    ~Icmpv4Echo() override;
    TypeId GetInstanceTypeId() const override;
    uint32_t GetSerializedSize() const override;
    void Serialize(Buffer::Iterator start) const override;
    uint32_t Deserialize(Buffer::Iterator start) override;
    void Print(std::ostream& os) const override;
 
  private:
    uint16_t m_identifier; 
    uint16_t m_sequence;   
    uint8_t* m_data;       
    uint32_t m_dataSize;   
};
 
class Icmpv4DestinationUnreachable : public Header
{
  public:
    enum ErrorDestinationUnreachable_e
    {
        ICMPV4_NET_UNREACHABLE = 0,
        ICMPV4_HOST_UNREACHABLE = 1,
        ICMPV4_PROTOCOL_UNREACHABLE = 2,
        ICMPV4_PORT_UNREACHABLE = 3,
        ICMPV4_FRAG_NEEDED = 4,
        ICMPV4_SOURCE_ROUTE_FAILED = 5
    };
 
    static TypeId GetTypeId();
    Icmpv4DestinationUnreachable();
    ~Icmpv4DestinationUnreachable() override;
 
    void SetNextHopMtu(uint16_t mtu);
    uint16_t GetNextHopMtu() const;
 
    void SetData(Ptr<const Packet> data);
    void SetHeader(Ipv4Header header);
 
    void GetData(uint8_t payload[8]) const;
    Ipv4Header GetHeader() const;
 
  private:
    TypeId GetInstanceTypeId() const override;
    uint32_t GetSerializedSize() const override;
    void Serialize(Buffer::Iterator start) const override;
    uint32_t Deserialize(Buffer::Iterator start) override;
    void Print(std::ostream& os) const override;
 
  private:
    uint16_t m_nextHopMtu; 
    Ipv4Header m_header;   
    uint8_t m_data[8];     
};
 
class Icmpv4TimeExceeded : public Header
{
  public:
    enum ErrorTimeExceeded_e
    {
        ICMPV4_TIME_TO_LIVE = 0,
        ICMPV4_FRAGMENT_REASSEMBLY = 1
    };
 
    void SetData(Ptr<const Packet> data);
    void SetHeader(Ipv4Header header);
 
    void GetData(uint8_t payload[8]) const;
    Ipv4Header GetHeader() const;
 
    static TypeId GetTypeId();
    Icmpv4TimeExceeded();
    ~Icmpv4TimeExceeded() override;
    TypeId GetInstanceTypeId() const override;
    uint32_t GetSerializedSize() const override;
    void Serialize(Buffer::Iterator start) const override;
    uint32_t Deserialize(Buffer::Iterator start) override;
    void Print(std::ostream& os) const override;
 
  private:
    Ipv4Header m_header; 
    uint8_t m_data[8];   
};
 
} // namespace ns3
 
#endif /* ICMPV4_H */