uwip-module.h

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//
// Copyright (c) 2017 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 _UWIPMODULE_
#define _UWIPMODULE_
 
#include <module.h>
 
#include <iostream>
#include <string>
 
#define NOT_FOR_ME_REASON \
    "NFM" 
#define DESTINATION_ADDR_UNSET \
    "DAU" 
#define ORIGINATED_BY_ME \
    "OBM" 
#define INVALID_DESTINATION_ADDR \
    "IDA" 
#define HDR_UWIP(P) (hdr_uwip::access(P))
 
static const uint8_t UWIP_BROADCAST = static_cast<uint8_t>(
        0x000000ff); 
extern packet_t PT_UWIP;
 
typedef struct hdr_uwip {
    uint8_t saddr_; 
    uint8_t daddr_; 
    static int offset_; 
    static int &
    offset()
    {
        return offset_;
    }
 
    static hdr_uwip *
    access(const Packet *p)
    {
        return (hdr_uwip *) p->access(offset_);
    }
 
    uint8_t &
    saddr()
    {
        return saddr_;
    }
 
    uint8_t &
    daddr()
    {
        return daddr_;
    }
 
} hdr_uwip;
 
class UWIPModule : public Module
{
 
public:
    UWIPModule();
 
    virtual ~UWIPModule() = default;
 
    virtual void recv(Packet *p);
 
    virtual int command(int argc, const char *const *argv);
 
    virtual int recvSyncClMsg(ClMessage *m);
 
    static const string printIP(const nsaddr_t &);
 
    static const string printIP(const uint8_t &);
 
    void
    printIdsPkts() const
    {
        std::cout << "UWIP packets IDs:" << std::endl;
        std::cout << "PT_UWIP: \t\t" << PT_UWIP << std::endl;
    }
 
protected:
    static uint8_t lastIP; 
    uint8_t ipAddr_; 
    int debug_; 
    bool addr_type_inet; 
    static int
    getIpHeaderSize()
    {
        return sizeof(hdr_uwip);
    }
};
 
#endif // _UWIPMODULE_