udp-socket-impl.h

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/*
 * Copyright (c) 2007 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 UDP_SOCKET_IMPL_H
#define UDP_SOCKET_IMPL_H
 
#include "icmpv4.h"
#include "ipv4-interface.h"
#include "udp-socket.h"
 
#include "ns3/callback.h"
#include "ns3/ipv4-address.h"
#include "ns3/ptr.h"
#include "ns3/socket.h"
#include "ns3/traced-callback.h"
 
#include <queue>
#include <stdint.h>
 
namespace ns3
{
 
class Ipv4EndPoint;
class Ipv6EndPoint;
class Node;
class Packet;
class UdpL4Protocol;
class Ipv6Header;
class Ipv6Interface;
 
class UdpSocketImpl : public UdpSocket
{
  public:
    static TypeId GetTypeId();
    UdpSocketImpl();
    ~UdpSocketImpl() override;
 
    void SetNode(Ptr<Node> node);
    void SetUdp(Ptr<UdpL4Protocol> udp);
 
    SocketErrno GetErrno() const override;
    SocketType GetSocketType() const override;
    Ptr<Node> GetNode() const override;
    int Bind() override;
    int Bind6() override;
    int Bind(const Address& address) override;
    int Close() override;
    int ShutdownSend() override;
    int ShutdownRecv() override;
    int Connect(const Address& address) override;
    int Listen() override;
    uint32_t GetTxAvailable() const override;
    int Send(Ptr<Packet> p, uint32_t flags) override;
    int SendTo(Ptr<Packet> p, uint32_t flags, const Address& address) override;
    uint32_t GetRxAvailable() const override;
    Ptr<Packet> Recv(uint32_t maxSize, uint32_t flags) override;
    Ptr<Packet> RecvFrom(uint32_t maxSize, uint32_t flags, Address& fromAddress) override;
    int GetSockName(Address& address) const override;
    int GetPeerName(Address& address) const override;
    int MulticastJoinGroup(uint32_t interfaceIndex, const Address& groupAddress) override;
    int MulticastLeaveGroup(uint32_t interfaceIndex, const Address& groupAddress) override;
    void BindToNetDevice(Ptr<NetDevice> netdevice) override;
    bool SetAllowBroadcast(bool allowBroadcast) override;
    bool GetAllowBroadcast() const override;
    void Ipv6JoinGroup(Ipv6Address address,
                       Socket::Ipv6MulticastFilterMode filterMode,
                       std::vector<Ipv6Address> sourceAddresses) override;
 
  private:
    // Attributes set through UdpSocket base class
    void SetRcvBufSize(uint32_t size) override;
    uint32_t GetRcvBufSize() const override;
    void SetIpMulticastTtl(uint8_t ipTtl) override;
    uint8_t GetIpMulticastTtl() const override;
    void SetIpMulticastIf(int32_t ipIf) override;
    int32_t GetIpMulticastIf() const override;
    void SetIpMulticastLoop(bool loop) override;
    bool GetIpMulticastLoop() const override;
    void SetMtuDiscover(bool discover) override;
    bool GetMtuDiscover() const override;
 
    friend class UdpSocketFactory;
    // invoked by Udp class
 
    int FinishBind();
 
    void ForwardUp(Ptr<Packet> packet,
                   Ipv4Header header,
                   uint16_t port,
                   Ptr<Ipv4Interface> incomingInterface);
 
    void ForwardUp6(Ptr<Packet> packet,
                    Ipv6Header header,
                    uint16_t port,
                    Ptr<Ipv6Interface> incomingInterface);
 
    void Destroy();
 
    void Destroy6();
 
    void DeallocateEndPoint();
 
    int DoSend(Ptr<Packet> p);
    int DoSendTo(Ptr<Packet> p, Ipv4Address daddr, uint16_t dport, uint8_t tos);
    int DoSendTo(Ptr<Packet> p, Ipv6Address daddr, uint16_t dport);
 
    void ForwardIcmp(Ipv4Address icmpSource,
                     uint8_t icmpTtl,
                     uint8_t icmpType,
                     uint8_t icmpCode,
                     uint32_t icmpInfo);
 
    void ForwardIcmp6(Ipv6Address icmpSource,
                      uint8_t icmpTtl,
                      uint8_t icmpType,
                      uint8_t icmpCode,
                      uint32_t icmpInfo);
 
    // Connections to other layers of TCP/IP
    Ipv4EndPoint* m_endPoint;  
    Ipv6EndPoint* m_endPoint6; 
    Ptr<Node> m_node;          
    Ptr<UdpL4Protocol> m_udp;  
    Callback<void, Ipv4Address, uint8_t, uint8_t, uint8_t, uint32_t>
        m_icmpCallback; 
    Callback<void, Ipv6Address, uint8_t, uint8_t, uint8_t, uint32_t>
        m_icmpCallback6; 
 
    Address m_defaultAddress;                      
    uint16_t m_defaultPort;                        
    TracedCallback<Ptr<const Packet>> m_dropTrace; 
 
    mutable SocketErrno m_errno; 
    bool m_shutdownSend;         
    bool m_shutdownRecv;         
    bool m_connected;            
    bool m_allowBroadcast;       
 
    std::queue<std::pair<Ptr<Packet>, Address>> m_deliveryQueue; 
    uint32_t m_rxAvailable; 
 
    // Socket attributes
    uint32_t m_rcvBufSize;    
    uint8_t m_ipMulticastTtl; 
    int32_t m_ipMulticastIf;  
    bool m_ipMulticastLoop;   
    bool m_mtuDiscover;       
};
 
} // namespace ns3
 
#endif /* UDP_SOCKET_IMPL_H */