ipv4-packet-info-tag.h

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/*
 * Copyright (c) 2010 Hajime Tazaki
 *
 * 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
 *
 * Authors: Hajime Tazaki <tazaki@sfc.wide.ad.jp>
 */
 
#ifndef IPV4_PACKET_INFO_TAG_H
#define IPV4_PACKET_INFO_TAG_H
 
#include "ns3/ipv4-address.h"
#include "ns3/tag.h"
 
namespace ns3
{
 
class Node;
class Packet;
 
class Ipv4PacketInfoTag : public Tag
{
  public:
    Ipv4PacketInfoTag();
 
    void SetAddress(Ipv4Address addr);
 
    Ipv4Address GetAddress() const;
 
    void SetRecvIf(uint32_t ifindex);
    uint32_t GetRecvIf() const;
 
    void SetTtl(uint8_t ttl);
    uint8_t GetTtl() const;
 
    static TypeId GetTypeId();
    TypeId GetInstanceTypeId() const override;
    uint32_t GetSerializedSize() const override;
    void Serialize(TagBuffer i) const override;
    void Deserialize(TagBuffer i) override;
    void Print(std::ostream& os) const override;
 
  private:
    // Linux IP_PKTINFO ip(7) implementation
    //
    // struct in_pktinfo {
    //   unsigned int   ipi_ifindex;  /* Interface index */
    //   struct in_addr ipi_spec_dst; /* Local address */
    //   struct in_addr ipi_addr;     /* Header Destination
    //                                   address */
    // };
 
    Ipv4Address m_addr; 
    uint32_t m_ifindex; 
 
    // Used for IP_RECVTTL, though not implemented yet.
    uint8_t m_ttl; 
};
} // namespace ns3
 
#endif /* IPV4_PACKET_INFO_TAG_H */