TCP_Test.c

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/************************************************************************************
* Copyright (C) 2020                                                               *
* TETCOS, Bangalore. India                                                         *
*                                                                                  *
* Tetcos owns the intellectual property rights in the Product and its content.     *
* The copying, redistribution, reselling or publication of any or all of the       *
* Product or its content without express prior written consent of Tetcos is        *
* prohibited. Ownership and / or any other right relating to the software and all  *
* intellectual property rights therein shall remain at all times with Tetcos.      *
*                                                                                  *
* Author:    Shashi Kant Suman                                                     *
*                                                                                  *
* ---------------------------------------------------------------------------------*/
#include "main.h"
#include "TCP.h"
#include "TCP_Header.h"
 
/*
* This file is used for testing the TCP working in NetSim.
* Work based on drop probability and burst drop.
*/
 
bool pass_test()
{
#ifdef _TEST_TCP_
    double d = NETSIM_RAND_01();
    static int c = 0;
    PTCP_SEGMENT_HDR hdr = TCP_GET_SEGMENT_HDR(pstruEventDetails->pPacket);
    if (!isAckDrop && hdr->Ack == 1)
        return true;
 
    if (burstDrop)
    {
        if (c && c < burstDropSize)
        {
            c++;
            return false;
        }
        else
        {
            c = 0;
        }
    }
    if (d < dropProbability)
    {
        if (burstDrop)
            c = 1;
        return false;
    }
    else
        return true;
#endif
    return true;
}