ipv4-static-routing.h

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/*
 * Copyright (c) 2006 Georgia Tech Research Corporation
 *
 * 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: George F. Riley<riley@ece.gatech.edu>
 *         Gustavo Carneiro <gjc@inescporto.pt>
 */
 
#ifndef IPV4_STATIC_ROUTING_H
#define IPV4_STATIC_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/socket.h"
 
#include <list>
#include <stdint.h>
#include <utility>
 
namespace ns3
{
 
class Packet;
class NetDevice;
class Ipv4Interface;
class Ipv4Address;
class Ipv4Header;
class Ipv4RoutingTableEntry;
class Ipv4MulticastRoutingTableEntry;
class Node;
 
class Ipv4StaticRouting : public Ipv4RoutingProtocol
{
  public:
    static TypeId GetTypeId();
 
    Ipv4StaticRouting();
    ~Ipv4StaticRouting() override;
 
    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,
                    UnicastForwardCallback ucb,
                    MulticastForwardCallback mcb,
                    LocalDeliverCallback lcb,
                    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 AddNetworkRouteTo(Ipv4Address network,
                           Ipv4Mask networkMask,
                           Ipv4Address nextHop,
                           uint32_t interface,
                           uint32_t metric = 0);
 
    void AddNetworkRouteTo(Ipv4Address network,
                           Ipv4Mask networkMask,
                           uint32_t interface,
                           uint32_t metric = 0);
 
    void AddHostRouteTo(Ipv4Address dest,
                        Ipv4Address nextHop,
                        uint32_t interface,
                        uint32_t metric = 0);
    void AddHostRouteTo(Ipv4Address dest, uint32_t interface, uint32_t metric = 0);
    void SetDefaultRoute(Ipv4Address nextHop, uint32_t interface, uint32_t metric = 0);
 
    uint32_t GetNRoutes() const;
 
    Ipv4RoutingTableEntry GetDefaultRoute();
 
    Ipv4RoutingTableEntry GetRoute(uint32_t i) const;
 
    uint32_t GetMetric(uint32_t index) const;
 
    void RemoveRoute(uint32_t i);
 
    void AddMulticastRoute(Ipv4Address origin,
                           Ipv4Address group,
                           uint32_t inputInterface,
                           std::vector<uint32_t> outputInterfaces);
 
    void SetDefaultMulticastRoute(uint32_t outputInterface);
 
    uint32_t GetNMulticastRoutes() const;
 
    Ipv4MulticastRoutingTableEntry GetMulticastRoute(uint32_t i) const;
 
    bool RemoveMulticastRoute(Ipv4Address origin, Ipv4Address group, uint32_t inputInterface);
 
    void RemoveMulticastRoute(uint32_t index);
 
  protected:
    void DoDispose() override;
 
  private:
    typedef std::list<std::pair<Ipv4RoutingTableEntry*, uint32_t>> NetworkRoutes;
 
    typedef std::list<std::pair<Ipv4RoutingTableEntry*, uint32_t>>::const_iterator NetworkRoutesCI;
 
    typedef std::list<std::pair<Ipv4RoutingTableEntry*, uint32_t>>::iterator NetworkRoutesI;
 
    typedef std::list<Ipv4MulticastRoutingTableEntry*> MulticastRoutes;
 
    typedef std::list<Ipv4MulticastRoutingTableEntry*>::const_iterator MulticastRoutesCI;
 
    typedef std::list<Ipv4MulticastRoutingTableEntry*>::iterator MulticastRoutesI;
 
    bool LookupRoute(const Ipv4RoutingTableEntry& route, uint32_t metric);
 
    Ptr<Ipv4Route> LookupStatic(Ipv4Address dest, Ptr<NetDevice> oif = nullptr);
 
    Ptr<Ipv4MulticastRoute> LookupStatic(Ipv4Address origin, Ipv4Address group, uint32_t interface);
 
    NetworkRoutes m_networkRoutes;
 
    MulticastRoutes m_multicastRoutes;
 
    Ptr<Ipv4> m_ipv4;
};
 
} // Namespace ns3
 
#endif /* IPV4_STATIC_ROUTING_H */