ipv4-global-routing.h

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//
// Copyright (c) 2008 University of Washington
//
// 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
//
//
 
#ifndef IPV4_GLOBAL_ROUTING_H
#define IPV4_GLOBAL_ROUTING_H
 
#include "ns3/ipv4-address.h"
#include "ns3/ipv4-header.h"
#include "ns3/ipv4-routing-protocol.h"
#include "ns3/ipv4.h"
#include "ns3/ptr.h"
#include "ns3/random-variable-stream.h"
 
#include <list>
#include <stdint.h>
 
namespace ns3
{
 
class Packet;
class NetDevice;
class Ipv4Interface;
class Ipv4Address;
class Ipv4Header;
class Ipv4RoutingTableEntry;
class Ipv4MulticastRoutingTableEntry;
class Node;
 
class Ipv4GlobalRouting : public Ipv4RoutingProtocol
{
  public:
    static TypeId GetTypeId();
    Ipv4GlobalRouting();
    ~Ipv4GlobalRouting() override;
 
    // These methods inherited from base class
    Ptr<Ipv4Route> RouteOutput(Ptr<Packet> p,
                               const Ipv4Header& header,
                               Ptr<NetDevice> oif,
                               Socket::SocketErrno& sockerr) override;
 
    bool RouteInput(Ptr<const Packet> p,
                    const Ipv4Header& header,
                    Ptr<const NetDevice> idev,
                    const UnicastForwardCallback& ucb,
                    const MulticastForwardCallback& mcb,
                    const LocalDeliverCallback& lcb,
                    const ErrorCallback& ecb) override;
    void NotifyInterfaceUp(uint32_t interface) override;
    void NotifyInterfaceDown(uint32_t interface) override;
    void NotifyAddAddress(uint32_t interface, Ipv4InterfaceAddress address) override;
    void NotifyRemoveAddress(uint32_t interface, Ipv4InterfaceAddress address) override;
    void SetIpv4(Ptr<Ipv4> ipv4) override;
    void PrintRoutingTable(Ptr<OutputStreamWrapper> stream,
                           Time::Unit unit = Time::S) const override;
 
    void AddHostRouteTo(Ipv4Address dest, Ipv4Address nextHop, uint32_t interface);
    void AddHostRouteTo(Ipv4Address dest, uint32_t interface);
 
    void AddNetworkRouteTo(Ipv4Address network,
                           Ipv4Mask networkMask,
                           Ipv4Address nextHop,
                           uint32_t interface);
 
    void AddNetworkRouteTo(Ipv4Address network, Ipv4Mask networkMask, uint32_t interface);
 
    void AddASExternalRouteTo(Ipv4Address network,
                              Ipv4Mask networkMask,
                              Ipv4Address nextHop,
                              uint32_t interface);
 
    uint32_t GetNRoutes() const;
 
    Ipv4RoutingTableEntry* GetRoute(uint32_t i) const;
 
    void RemoveRoute(uint32_t i);
 
    int64_t AssignStreams(int64_t stream);
 
  protected:
    void DoDispose() override;
 
  private:
    bool m_randomEcmpRouting;
    bool m_respondToInterfaceEvents;
    Ptr<UniformRandomVariable> m_rand;
 
    typedef std::list<Ipv4RoutingTableEntry*> HostRoutes;
    typedef std::list<Ipv4RoutingTableEntry*>::const_iterator HostRoutesCI;
    typedef std::list<Ipv4RoutingTableEntry*>::iterator HostRoutesI;
 
    typedef std::list<Ipv4RoutingTableEntry*> NetworkRoutes;
    typedef std::list<Ipv4RoutingTableEntry*>::const_iterator NetworkRoutesCI;
    typedef std::list<Ipv4RoutingTableEntry*>::iterator NetworkRoutesI;
 
    typedef std::list<Ipv4RoutingTableEntry*> ASExternalRoutes;
    typedef std::list<Ipv4RoutingTableEntry*>::const_iterator ASExternalRoutesCI;
    typedef std::list<Ipv4RoutingTableEntry*>::iterator ASExternalRoutesI;
 
    Ptr<Ipv4Route> LookupGlobal(Ipv4Address dest, Ptr<NetDevice> oif = nullptr);
 
    HostRoutes m_hostRoutes;             
    NetworkRoutes m_networkRoutes;       
    ASExternalRoutes m_ASexternalRoutes; 
 
    Ptr<Ipv4> m_ipv4; 
};
 
} // Namespace ns3
 
#endif /* IPV4_GLOBAL_ROUTING_H */