Satellite_HDR.c

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/************************************************************************************
* Copyright (C) 2021                                                                *
* 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.       *
*                                                                                   *
* This source code is licensed per the NetSim license agreement.                    *
*                                                                                   *
* No portion of this source code may be used as the basis for a derivative work,    *
* or used, for any purpose other than its intended use per the NetSim license       *
* agreement.                                                                        *
*                                                                                   *
* This source code and the algorithms contained within it are confidential trade    *
* secrets of TETCOS and may not be used as the basis for any other software,        *
* hardware, product or service.                                                     *
*                                                                                   *
* Author:    Shashi Kant Suman                                                      *
*                                                                                   *
* ----------------------------------------------------------------------------------*/
#include "main.h"
#include "Satellite_HDR.h"
#include "Satellite_MAC.h"
 
void satellite_hdr_init(NETSIM_ID d, NETSIM_ID in,
                        NetSim_PACKET* packet)
{
    ptrSATELLITE_HDR hdr = calloc(1, sizeof * hdr);
    
    packet->pstruMacData->nMACProtocol = MAC_PROTOCOL_SATELLITE;
    packet->pstruMacData->Packet_MACProtocol = hdr;
 
    if (isUT(d, in))
    {
        ptrSATELLITE_UT_MAC mac = SATELLITE_UTMAC_GET(d, in);
        hdr->gwId = mac->gatewayId;
        hdr->gwIf = mac->gatewayIf;
        hdr->linkType = LINKTYPE_RETURN;
        hdr->satelliteId = mac->satelliteId;
        hdr->satelliteIf = mac->satelliteIf;
        hdr->utId = d;
        hdr->utIf = in;
    }
    else if (isGW(d, in))
    {
        ptrSATELLITE_GW_MAC mac = SATELLITE_GWMAC_GET(d, in);
        hdr->gwId = d;
        hdr->gwIf = in;
        hdr->linkType = LINKTYPE_FORWARD;
        hdr->satelliteId = mac->satelliteId;
        hdr->satelliteIf = mac->satelliteIf;
        hdr->utId = packet->nReceiverId;
        hdr->utIf = fn_NetSim_Stack_GetConnectedInterface(d, in, hdr->utId);
    }
    else
    {
        fnNetSimError("Unknown device type %d for %d:%d in function %s\n",
                      SATELLITE_DEVICETYPE_GET(d, in), d, in);
    }
}
 
ptrSATELLITE_HDR SATELLITE_HDR_GET(NetSim_PACKET* packet)
{
    return (ptrSATELLITE_HDR)packet->pstruMacData->Packet_MACProtocol;
}
 
void SATELLITE_HDR_REMOVE(NetSim_PACKET* packet)
{
    ptrSATELLITE_HDR hdr = packet->pstruMacData->Packet_MACProtocol;
    free(hdr);
    packet->pstruMacData->Packet_MACProtocol = NULL;
}