ReceivingRIP.c

/************************************************************************************
* Copyright (C) 2023     
*
* 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:  Thangarasu.K                                                       *
* ---------------------------------------------------------------------------------*/
#define _CRT_SECURE_NO_DEPRECATE
#include "main.h"
#include "Routing.h"
/**
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    The RIP message from the neighbor routers are received in this function, After receiving
    the RIP message trigger the timeout timer event
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
 */
_declspec(dllexport) int fn_NetSim_RIP_ReceivingOf_RIP_Message(struct stru_NetSim_Network *pstruNETWORK,NetSim_EVENTDETAILS *pstruEventDetails)
{
    NETSIM_ID nDeviceId;
    double dEventTime;
    RIP_ENTRY *pstruEntry;
    // NetSim packet To store the RIP packet
    NetSim_PACKET *pstruControlPacket = NULL;
    // RIP PACKET to store RIP packet data  
    RIP_PACKET *pstruPacketRip = NULL;  
    pstruControlPacket=pstruEventDetails->pPacket;
    pstruPacketRip=pstruControlPacket->pstruAppData->Packet_AppProtocol;
    pstruEntry=pstruPacketRip->pstruRIPEntry;
    NETWORK=pstruNETWORK;
    nDeviceId=pstruEventDetails->nDeviceId;
    dEventTime=pstruEventDetails->dEventTime;
    get_RIP_var(nDeviceId)->uniInteriorRouting.struRIP.nStatus++;
    pstruEventDetails->nEventType=APPLICATION_IN_EVENT;
    pstruEventDetails->nProtocolId=APP_PROTOCOL_RIP;
    pstruEventDetails->nSubEventType=ROUTING_TABLE_UPDATION;
    fnpAddEvent(pstruEventDetails);
    pstruEventDetails->pPacket = NULL;
    while(pstruEntry!=NULL)
    {
        pstruEventDetails->nApplicationId=0;
        //Assign the packet size as 512
        pstruEventDetails->dPacketSize=RIP_PACKET_SIZE_WITH_HEADER;
        pstruEventDetails->nEventType=TIMER_EVENT;
        pstruEventDetails->nProtocolId=APP_PROTOCOL_RIP;
        pstruEventDetails->nSubEventType=RIP_TIMEOUT;
        // Add the timeout timer with the event time to trigger the timeout event
        pstruEventDetails->dEventTime=dEventTime+get_RIP_var(nDeviceId)->uniInteriorRouting.struRIP.n_timeout_timer;
        fnpAddEvent(pstruEventDetails);
        pstruEntry=pstruEntry->pstru_RIP_NextEntry;
    }       
    return 0;
}