epc-x2.h

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/*
 * Copyright (c) 2012 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>
 */
 
#ifndef EPC_X2_H
#define EPC_X2_H
 
#include "ns3/callback.h"
#include "ns3/epc-x2-sap.h"
#include "ns3/object.h"
#include "ns3/ptr.h"
#include "ns3/socket.h"
 
#include <map>
 
namespace ns3
{
 
class X2IfaceInfo : public SimpleRefCount<X2IfaceInfo>
{
  public:
    X2IfaceInfo(Ipv4Address remoteIpAddr,
                Ptr<Socket> localCtrlPlaneSocket,
                Ptr<Socket> localUserPlaneSocket);
    virtual ~X2IfaceInfo();
 
    X2IfaceInfo& operator=(const X2IfaceInfo& value);
 
  public:
    Ipv4Address m_remoteIpAddr;         
    Ptr<Socket> m_localCtrlPlaneSocket; 
    Ptr<Socket> m_localUserPlaneSocket; 
};
 
class X2CellInfo : public SimpleRefCount<X2CellInfo>
{
  public:
    X2CellInfo(std::vector<uint16_t> localCellIds, std::vector<uint16_t> remoteCellIds);
    virtual ~X2CellInfo();
 
    X2CellInfo& operator=(const X2CellInfo& value);
 
  public:
    std::vector<uint16_t> m_localCellIds;  
    std::vector<uint16_t> m_remoteCellIds; 
};
 
class EpcX2 : public Object
{
    friend class EpcX2SpecificEpcX2SapProvider<EpcX2>;
 
  public:
    EpcX2();
 
    ~EpcX2() override;
 
    static TypeId GetTypeId();
    void DoDispose() override;
 
    void SetEpcX2SapUser(EpcX2SapUser* s);
 
    EpcX2SapProvider* GetEpcX2SapProvider();
 
    void AddX2Interface(uint16_t enb1CellId,
                        Ipv4Address enb1X2Address,
                        std::vector<uint16_t> enb2CellIds,
                        Ipv4Address enb2X2Address);
 
    void RecvFromX2cSocket(Ptr<Socket> socket);
 
    void RecvFromX2uSocket(Ptr<Socket> socket);
 
  protected:
    // Interface provided by EpcX2SapProvider
    virtual void DoSendHandoverRequest(EpcX2SapProvider::HandoverRequestParams params);
    virtual void DoSendHandoverRequestAck(EpcX2SapProvider::HandoverRequestAckParams params);
    virtual void DoSendHandoverPreparationFailure(
        EpcX2SapProvider::HandoverPreparationFailureParams params);
    virtual void DoSendSnStatusTransfer(EpcX2SapProvider::SnStatusTransferParams params);
    virtual void DoSendUeContextRelease(EpcX2SapProvider::UeContextReleaseParams params);
    virtual void DoSendLoadInformation(EpcX2SapProvider::LoadInformationParams params);
    virtual void DoSendResourceStatusUpdate(EpcX2SapProvider::ResourceStatusUpdateParams params);
    virtual void DoSendUeData(EpcX2SapProvider::UeDataParams params);
    virtual void DoSendHandoverCancel(EpcX2SapProvider::HandoverCancelParams params);
 
    EpcX2SapUser* m_x2SapUser;         
    EpcX2SapProvider* m_x2SapProvider; 
 
  private:
    std::map<uint16_t, Ptr<X2IfaceInfo>> m_x2InterfaceSockets;
 
    std::map<Ptr<Socket>, Ptr<X2CellInfo>> m_x2InterfaceCellIds;
 
    uint16_t m_x2cUdpPort;
    uint16_t m_x2uUdpPort;
};
 
} // namespace ns3
 
#endif // EPC_X2_H