rip-helper.h

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/*
 * Copyright (c) 2016 Universita' di Firenze, Italy
 *
 * SPDX-License-Identifier: GPL-2.0-only
 *
 * Author: Tommaso Pecorella <tommaso.pecorella@unifi.it>
 */
 
#ifndef RIP_HELPER_H
#define RIP_HELPER_H
 
#include "ipv4-routing-helper.h"
 
#include "ns3/node-container.h"
#include "ns3/node.h"
#include "ns3/object-factory.h"
 
namespace ns3
{
 
/**
 * \ingroup ipv4Helpers
 *
 * \brief Helper class that adds RIP routing to nodes.
 *
 * This class is expected to be used in conjunction with
 * ns3::InternetStackHelper::SetRoutingHelper
 *
 */
class RipHelper : public Ipv4RoutingHelper
{
  public:
    /*
     * Construct an RipHelper to make life easier while adding RIP
     * routing to nodes.
     */
    RipHelper();
 
    /**
     * \brief Construct an RipHelper from another previously
     * initialized instance (Copy Constructor).
     * \param o The object to copy from.
     */
    RipHelper(const RipHelper& o);
 
    ~RipHelper() override;
 
    // Delete assignment operator to avoid misuse
    RipHelper& operator=(const RipHelper&) = delete;
 
    /**
     * \returns pointer to clone of this RipHelper
     *
     * This method is mainly for internal use by the other helpers;
     * clients are expected to free the dynamic memory allocated by this method
     */
    RipHelper* Copy() const override;
 
    /**
     * \param node the node on which the routing protocol will run
     * \returns a newly-created routing protocol
     *
     * This method will be called by ns3::InternetStackHelper::Install
     */
    Ptr<Ipv4RoutingProtocol> Create(Ptr<Node> node) const override;
 
    /**
     * \param name the name of the attribute to set
     * \param value the value of the attribute to set.
     *
     * This method controls the attributes of ns3::Ripng
     */
    void Set(std::string name, const AttributeValue& value);
 
    /**
     * Assign a fixed random variable stream number to the random variables
     * used by this model. Return the number of streams (possibly zero) that
     * have been assigned. The Install() method should have previously been
     * called by the user.
     *
     * \param c NetDeviceContainer of the set of net devices for which the
     *          SixLowPanNetDevice should be modified to use a fixed stream
     * \param stream first stream index to use
     * \return the number of stream indices assigned by this helper
     */
    int64_t AssignStreams(NodeContainer c, int64_t stream);
 
    /**
     * \brief Install a default route in the node.
     *
     * The traffic will be routed to the nextHop, located on the specified
     * interface, unless a more specific route is found.
     *
     * \param node the node
     * \param nextHop the next hop
     * \param interface the network interface
     */
    void SetDefaultRouter(Ptr<Node> node, Ipv4Address nextHop, uint32_t interface);
 
    /**
     * \brief Exclude an interface from RIP protocol.
     *
     * You have to call this function \a before installing RIP in the nodes.
     *
     * Note: the exclusion means that RIP will not be propagated on that interface.
     * The network prefix on that interface will be still considered in RIP.
     *
     * \param node the node
     * \param interface the network interface to be excluded
     */
    void ExcludeInterface(Ptr<Node> node, uint32_t interface);
 
    /**
     * \brief Set a metric for an interface.
     *
     * You have to call this function \a before installing RIP in the nodes.
     *
     * Note: RIP will apply the metric on route message reception.
     * As a consequence, interface metric should be set on the receiver.
     *
     * \param node the node
     * \param interface the network interface
     * \param metric the interface metric
     */
    void SetInterfaceMetric(Ptr<Node> node, uint32_t interface, uint8_t metric);
 
  private:
    ObjectFactory m_factory; //!< Object Factory
 
    std::map<Ptr<Node>, std::set<uint32_t>> m_interfaceExclusions; //!< Interface Exclusion set
    std::map<Ptr<Node>, std::map<uint32_t, uint8_t>> m_interfaceMetrics; //!< Interface Metric set
};
 
} // namespace ns3
 
#endif /* RIP_HELPER_H */