Method handleInitMsg

Server/src/bmp/parseBMP.cpp:838–920

* handle the initiation message and update the router entry * * \param [in] sock Socket to read the init message from * \param [in/out] r_entry Already defined router entry reference (will be updated) */

 * \param [in/out] r_entry     Already defined router entry reference (will be updated)
 */
void parseBMP::handleInitMsg(int sock, MsgBusInterface::obj_router &r_entry) {
    info_tlv_msg info;
    char infoBuf[sizeof(r_entry.initiate_data)];
    int infoLen;
    r_entry.hash_type=0;    

    // Buffer the init message for parsing
    bufferBMPMessage(sock);

    u_char *bufPtr = bmp_data;

    /*
     * Loop through the init message (in buffer) to parse each TLV
     */
    for (int i=0; i < bmp_data_len; i += BMP_INFO_TLV_HDR_LEN) {
        memcpy(&info, bufPtr, BMP_INFO_TLV_HDR_LEN);
        info.info = NULL;
        bgp::SWAP_BYTES(&info.len);
        bgp::SWAP_BYTES(&info.type);

        bufPtr += BMP_INFO_TLV_HDR_LEN;                // Move pointer past the info header

        // TODO: Change to SELF_DEBUG after IOS supports INIT messages correctly
        LOG_INFO("Init message type %hu and length %hu parsed", info.type, info.len);

        if (info.len > 0) {
            infoLen = sizeof(infoBuf) < info.len ? sizeof(infoBuf) : info.len;
            bzero(infoBuf, sizeof(infoBuf));
            memcpy(infoBuf, bufPtr, infoLen);
            bufPtr += infoLen;                     // Move pointer past the info data
            i += infoLen;                          // Update the counter past the info data

            info.info = infoBuf;

        }
        else {
            // ignore info lengths of zero
            continue;
        }

        /*
         * Save the data based on info type
         */
        switch (info.type) {
            case INIT_TYPE_FREE_FORM_STRING :
                infoLen = sizeof(r_entry.initiate_data) < (info.len - 1) ? (sizeof(r_entry.initiate_data) - 1) : info.len;
                memcpy(r_entry.initiate_data, info.info, infoLen);
                LOG_INFO("Init message type %hu = %s", info.type, r_entry.initiate_data);

                break;

            case INIT_TYPE_SYSNAME :
                infoLen = sizeof(r_entry.name) < (info.len - 1) ? (sizeof(r_entry.name) - 1) : info.len;
                strncpy((char *)r_entry.name, info.info, infoLen);
                LOG_INFO("Init message type %hu = %s", info.type, r_entry.name);

                if(r_entry.hash_type<2)	//Here we will check if bgp_id is not received, then we will update the hash_type
                    r_entry.hash_type=1;