dsr-fs-header.h

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/*
 * Copyright (c) 2011 Yufei Cheng
 *
 * 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: Yufei Cheng   <yfcheng@ittc.ku.edu>
 *
 * James P.G. Sterbenz <jpgs@ittc.ku.edu>, director
 * ResiliNets Research Group  https://resilinets.org/
 * Information and Telecommunication Technology Center (ITTC)
 * and Department of Electrical Engineering and Computer Science
 * The University of Kansas Lawrence, KS USA.
 *
 * Work supported in part by NSF FIND (Future Internet Design) Program
 * under grant CNS-0626918 (Postmodern Internet Architecture),
 * NSF grant CNS-1050226 (Multilayer Network Resilience Analysis and Experimentation on GENI),
 * US Department of Defense (DoD), and ITTC at The University of Kansas.
 */
 
#ifndef DSR_FS_HEADER_H
#define DSR_FS_HEADER_H
 
#include "dsr-option-header.h"
 
#include "ns3/header.h"
#include "ns3/ipv4-address.h"
 
#include <list>
#include <ostream>
#include <vector>
 
namespace ns3
{
namespace dsr
{
class DsrFsHeader : public Header
{
  public:
    static TypeId GetTypeId();
    TypeId GetInstanceTypeId() const override;
    DsrFsHeader();
    ~DsrFsHeader() override;
    void SetNextHeader(uint8_t protocol);
    uint8_t GetNextHeader() const;
    void SetMessageType(uint8_t messageType);
    uint8_t GetMessageType() const;
    void SetSourceId(uint16_t sourceId);
    uint16_t GetSourceId() const;
    void SetDestId(uint16_t destId);
    uint16_t GetDestId() const;
    void SetPayloadLength(uint16_t length);
    uint16_t GetPayloadLength() 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_nextHeader;
    uint8_t m_messageType;
    uint16_t m_payloadLen;
    uint16_t m_sourceId;
    uint16_t m_destId;
    Buffer m_data;
};
 
class DsrOptionField
{
  public:
    DsrOptionField(uint32_t optionsOffset);
    ~DsrOptionField();
    uint32_t GetSerializedSize() const;
    void Serialize(Buffer::Iterator start) const;
    uint32_t Deserialize(Buffer::Iterator start, uint32_t length);
    void AddDsrOption(const DsrOptionHeader& option);
    uint32_t GetDsrOptionsOffset() const;
    Buffer GetDsrOptionBuffer();
 
  private:
    uint32_t CalculatePad(DsrOptionHeader::Alignment alignment) const;
    Buffer m_optionData;
    uint32_t m_optionsOffset;
};
 
class DsrRoutingHeader : public DsrFsHeader, public DsrOptionField
{
  public:
    static TypeId GetTypeId();
    TypeId GetInstanceTypeId() const override;
    DsrRoutingHeader();
    ~DsrRoutingHeader() 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;
};
 
static inline std::ostream&
operator<<(std::ostream& os, const DsrRoutingHeader& dsr)
{
    dsr.Print(os);
    return os;
}
 
} // namespace dsr
} // namespace ns3
 
#endif /* DSR_FS_HEADER_H */