epc-pgw-application.h

Go to the documentation of this file.

/*
 * Copyright (c) 2018 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
 *
 * 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: Manuel Requena <manuel.requena@cttc.es>
 *         (based on epc-sgw-pgw-application.h)
 */
 
#ifndef EPC_PGW_APPLICATION_H
#define EPC_PGW_APPLICATION_H
 
#include "epc-gtpc-header.h"
#include "epc-tft-classifier.h"
 
#include "ns3/application.h"
#include "ns3/socket.h"
#include "ns3/virtual-net-device.h"
 
namespace ns3
{
 
class EpcPgwApplication : public Application
{
  public:
    static TypeId GetTypeId();
    void DoDispose() override;
 
    EpcPgwApplication(const Ptr<VirtualNetDevice> tunDevice,
                      Ipv4Address s5Addr,
                      const Ptr<Socket> s5uSocket,
                      const Ptr<Socket> s5cSocket);
 
    ~EpcPgwApplication() override;
 
    bool RecvFromTunDevice(Ptr<Packet> packet,
                           const Address& source,
                           const Address& dest,
                           uint16_t protocolNumber);
 
    void RecvFromS5uSocket(Ptr<Socket> socket);
 
    void RecvFromS5cSocket(Ptr<Socket> socket);
 
    void SendToTunDevice(Ptr<Packet> packet, uint32_t teid);
 
    void SendToS5uSocket(Ptr<Packet> packet, Ipv4Address sgwS5uAddress, uint32_t teid);
 
    void AddSgw(Ipv4Address sgwS5Addr);
 
    void AddUe(uint64_t imsi);
 
    void SetUeAddress(uint64_t imsi, Ipv4Address ueAddr);
 
    void SetUeAddress6(uint64_t imsi, Ipv6Address ueAddr);
 
    typedef void (*RxTracedCallback)(Ptr<Packet> packet);
 
  private:
    void DoRecvCreateSessionRequest(Ptr<Packet> packet);
 
    void DoRecvModifyBearerRequest(Ptr<Packet> packet);
 
    void DoRecvDeleteBearerCommand(Ptr<Packet> packet);
 
    void DoRecvDeleteBearerResponse(Ptr<Packet> packet);
 
    class UeInfo : public SimpleRefCount<UeInfo>
    {
      public:
        UeInfo();
 
        void AddBearer(uint8_t bearerId, uint32_t teid, Ptr<EpcTft> tft);
 
        void RemoveBearer(uint8_t bearerId);
 
        uint32_t Classify(Ptr<Packet> p, uint16_t protocolNumber);
 
        Ipv4Address GetSgwAddr();
 
        void SetSgwAddr(Ipv4Address addr);
 
        Ipv4Address GetUeAddr();
 
        void SetUeAddr(Ipv4Address addr);
 
        Ipv6Address GetUeAddr6();
 
        void SetUeAddr6(Ipv6Address addr);
 
      private:
        Ipv4Address m_ueAddr;                            
        Ipv6Address m_ueAddr6;                           
        Ipv4Address m_sgwAddr;                           
        EpcTftClassifier m_tftClassifier;                
        std::map<uint8_t, uint32_t> m_teidByBearerIdMap; 
    };
 
    Ipv4Address m_pgwS5Addr;
 
    Ptr<Socket> m_s5uSocket;
 
    Ptr<Socket> m_s5cSocket;
 
    Ptr<VirtualNetDevice> m_tunDevice;
 
    std::map<Ipv4Address, Ptr<UeInfo>> m_ueInfoByAddrMap;
 
    std::map<Ipv6Address, Ptr<UeInfo>> m_ueInfoByAddrMap6;
 
    std::map<uint64_t, Ptr<UeInfo>> m_ueInfoByImsiMap;
 
    uint16_t m_gtpuUdpPort;
 
    uint16_t m_gtpcUdpPort;
 
    Ipv4Address m_sgwS5Addr;
 
    TracedCallback<Ptr<Packet>> m_rxTunPktTrace;
 
    TracedCallback<Ptr<Packet>> m_rxS5PktTrace;
};
 
} // namespace ns3
 
#endif // EPC_PGW_APPLICATION_H