C++ (Cpp) Encode_Property_APDU Examples

Example #1

File: h_rp.c Project: Jongil-Park/Lin_PRJ

void handler_read_property(
    uint8_t * service_request,
    uint16_t service_len,
    BACNET_ADDRESS * src,
    BACNET_CONFIRMED_SERVICE_DATA * service_data)
{
    BACNET_READ_PROPERTY_DATA data;
    int len = 0;
    int pdu_len = 0;
    BACNET_NPDU_DATA npdu_data;
    bool error = false;
    int bytes_sent = 0;
    BACNET_ERROR_CLASS error_class = ERROR_CLASS_OBJECT;
    BACNET_ERROR_CODE error_code = ERROR_CODE_UNKNOWN_OBJECT;
    BACNET_ADDRESS my_address;

    /* encode the NPDU portion of the packet */
    datalink_get_my_address(&my_address);
    npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
    pdu_len =
        npdu_encode_pdu(&Handler_Transmit_Buffer[0], src, &my_address,
        &npdu_data);
    if (service_data->segmented_message) {
        /* we don't support segmentation - send an abort */
        len =
            abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
            service_data->invoke_id, ABORT_REASON_SEGMENTATION_NOT_SUPPORTED,
            true);
        goto RP_ABORT;
    }
    len = rp_decode_service_request(service_request, service_len, &data);
    if (len < 0) {
        /* bad decoding - send an abort */
        len =
            abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
            service_data->invoke_id, ABORT_REASON_OTHER, true);
        goto RP_ABORT;
    }
    /* most cases will be error */
    error = true;
    len =
        Encode_Property_APDU(&Temp_Buf[0], data.object_type,
        data.object_instance, data.object_property, data.array_index,
        &error_class, &error_code);
    if (len >= 0) {
        /* encode the APDU portion of the packet */
        data.application_data = &Temp_Buf[0];
        data.application_data_len = len;
        /* FIXME: probably need a length limitation sent with encode */
        len =
            rp_ack_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
            service_data->invoke_id, &data);
        error = false;
    }
    if (error) {
        if (len == -2) {
            /* BACnet APDU too small to fit data, so proper response is Abort */
            len =
                abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
                service_data->invoke_id,
                ABORT_REASON_SEGMENTATION_NOT_SUPPORTED, true);
            goto RP_ABORT;
        }
        len =
            bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
            service_data->invoke_id, SERVICE_CONFIRMED_READ_PROPERTY,
            error_class, error_code);
    }
  RP_ABORT:
    pdu_len += len;
    bytes_sent =
        datalink_send_pdu(src, &npdu_data, &Handler_Transmit_Buffer[0],
        pdu_len);

    return;
}

Example #2

File: h_rp.c Project: beh9540/bacnetwx2

void handler_read_property(
    uint8_t * service_request,
    uint16_t service_len,
    BACNET_ADDRESS * src,
    BACNET_CONFIRMED_SERVICE_DATA * service_data)
{
    BACNET_READ_PROPERTY_DATA data;
    int len = 0;
    int pdu_len = 0;
    BACNET_NPDU_DATA npdu_data;
    bool error = false;
    int bytes_sent = 0;
    BACNET_ERROR_CLASS error_class = ERROR_CLASS_OBJECT;
    BACNET_ERROR_CODE error_code = ERROR_CODE_UNKNOWN_OBJECT;
    BACNET_ADDRESS my_address;

    /* encode the NPDU portion of the packet */
    datalink_get_my_address(&my_address);
    npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
    pdu_len =
        npdu_encode_pdu(&Handler_Transmit_Buffer[0], src, &my_address,
        &npdu_data);
    if (service_data->segmented_message) {
        /* we don't support segmentation - send an abort */
        len =
            abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
            service_data->invoke_id, ABORT_REASON_SEGMENTATION_NOT_SUPPORTED,
            true);
#if PRINT_ENABLED
        fprintf(stderr, "RP: Segmented message.  Sending Abort!\n");
#endif
        goto RP_ABORT;
    }

    len = rp_decode_service_request(service_request, service_len, &data);
#if PRINT_ENABLED
    if (len <= 0)
        fprintf(stderr, "RP: Unable to decode Request!\n");
#endif
    if (len < 0) {
        /* bad decoding - send an abort */
        len =
            abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
            service_data->invoke_id, ABORT_REASON_OTHER, true);
#if PRINT_ENABLED
        fprintf(stderr, "RP: Bad Encoding.  Sending Abort!\n");
#endif
        goto RP_ABORT;
    }

    /* assume that there is an error */
    error = true;
    len =
        Encode_Property_APDU(&Temp_Buf[0], data.object_type,
        data.object_instance, data.object_property, data.array_index,
        &error_class, &error_code);
    if (len >= 0) {
        /* encode the APDU portion of the packet */
        data.application_data = &Temp_Buf[0];
        data.application_data_len = len;
        /* FIXME: probably need a length limitation sent with encode */
        len =
            rp_ack_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
            service_data->invoke_id, &data);
#if PRINT_ENABLED
        fprintf(stderr, "RP: Sending Ack!\n");
#endif
        error = false;
    }
    if (error) {
        if (len == -2) {
            /* BACnet APDU too small to fit data, so proper response is Abort */
            len =
                abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
                service_data->invoke_id,
                ABORT_REASON_SEGMENTATION_NOT_SUPPORTED, true);
#if PRINT_ENABLED
            fprintf(stderr, "RP: Reply too big to fit into APDU!\n");
#endif
        } else {
            len =
                bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
                service_data->invoke_id, SERVICE_CONFIRMED_READ_PROPERTY,
                error_class, error_code);
#if PRINT_ENABLED
            fprintf(stderr, "RP: Sending Error!\n");
#endif
        }
    }
  RP_ABORT:
    pdu_len += len;
    bytes_sent =
        datalink_send_pdu(src, &npdu_data, &Handler_Transmit_Buffer[0],
        pdu_len);
#if PRINT_ENABLED
    if (bytes_sent <= 0)
        fprintf(stderr, "Failed to send PDU (%s)!\n", strerror(errno));
#endif

    return;
}