uwmulti-destination.h

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//
// Copyright (c) 2018 Regents of the SIGNET lab, University of Padova.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
// 3. Neither the name of the University of Padova (SIGNET lab) nor the
//    names of its contributors may be used to endorse or promote products
//    derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#ifndef UWMULTI_DESTINATION_H
#define UWMULTI_DESTINATION_H
 
#include <climits>
#include <cmath>
#include <iostream>
#include <list>
#include <map>
#include <module.h>
#include <packet.h>
#include <rng.h>
#include <string.h>
#include <tclcl.h>
#include <uwip-module.h>
 
typedef struct IP_range {
    int min_IP; 
    int max_IP; 
    IP_range(int min, int max)
        : min_IP(min)
        , max_IP(max)
    {
    }
 
    bool
    overlappingRange(IP_range range)
    {
        return overlappingRange(range.min_IP, range.max_IP);
    }
 
    bool
    overlappingRange(int min, int max)
    {
        return !(min_IP > max || max_IP < min);
    }
 
    bool
    isInRange(int addr)
    {
        return (addr >= min_IP && addr <= max_IP);
    }
} range_IP;
 
typedef std::pair<int, IP_range> layer_IPrange;
 
class UwMultiDestination : public Module
{
 
public:
    // constant definitions
    static int const layer_not_exist; 
    UwMultiDestination();
 
    virtual ~UwMultiDestination()
    {
    }
 
    virtual int command(int, const char *const *);
 
    virtual bool addLayer(IP_range range, int id);
 
    virtual void recv(Packet *p);
 
protected:
    // Variables
    enum Mode {
        UW_MANUAL_SWITCH = 0, 
        UW_AUTOMATIC_SWITCH 
    };
 
    int debug_; 
    double min_delay_;
    Mode switch_mode_; 
    int lower_id_active_; 
    std::list<layer_IPrange> layer_list; 
    int default_lower_id; 
    virtual void recvFromUpperLayers(Packet *p);
 
    virtual int getDestinationLayer(Packet *p);
 
    virtual bool checkNotOverlap(IP_range range);
 
private:
    // Variables
};
 
#endif /* UWMULTI_DESTINATION_H  */