skarg
352 lines
14 KiB
C
352 lines
14 KiB
C
/**************************************************************************
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*
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* Copyright (C) 2005 Steve Karg <skarg@users.sourceforge.net>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*********************************************************************/
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#include <stddef.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include "config.h"
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#include "txbuf.h"
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#include "bacdef.h"
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#include "bacdcode.h"
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#include "apdu.h"
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#include "npdu.h"
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#include "abort.h"
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#include "rp.h"
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/* demo objects */
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#include "device.h"
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#include "ai.h"
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#include "ao.h"
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#include "av.h"
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#include "bi.h"
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#include "bo.h"
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#include "bv.h"
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#include "lsp.h"
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#include "mso.h"
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#if BACFILE
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#include "bacfile.h"
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#endif
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static uint8_t Temp_Buf[MAX_APDU] = { 0 };
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void handler_read_property(uint8_t * service_request,
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uint16_t service_len,
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BACNET_ADDRESS * src, BACNET_CONFIRMED_SERVICE_DATA * service_data)
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{
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BACNET_READ_PROPERTY_DATA data;
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int len = 0;
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int pdu_len = 0;
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BACNET_NPDU_DATA npdu_data;
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bool send = false;
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bool error = false;
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int bytes_sent = 0;
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BACNET_ERROR_CLASS error_class = ERROR_CLASS_OBJECT;
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BACNET_ERROR_CODE error_code = ERROR_CODE_UNKNOWN_OBJECT;
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len = rp_decode_service_request(service_request, service_len, &data);
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#if PRINT_ENABLED
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if (len <= 0)
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fprintf(stderr, "Unable to decode Read-Property Request!\n");
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#endif
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/* bad decoding - send an abort */
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if (len < 0) {
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pdu_len = abort_encode_apdu(&Handler_Transmit_Buffer[0],
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service_data->invoke_id, ABORT_REASON_OTHER);
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#if PRINT_ENABLED
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fprintf(stderr, "Sending Abort!\n");
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#endif
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send = true;
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} else if (service_data->segmented_message) {
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pdu_len = abort_encode_apdu(&Handler_Transmit_Buffer[0],
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service_data->invoke_id,
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ABORT_REASON_SEGMENTATION_NOT_SUPPORTED);
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#if PRINT_ENABLED
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fprintf(stderr, "Sending Abort!\n");
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#endif
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send = true;
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} else {
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switch (data.object_type) {
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case OBJECT_DEVICE:
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/* FIXME: probably need a length limitation sent with encode */
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if (data.object_instance == Device_Object_Instance_Number()) {
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len = Device_Encode_Property_APDU(&Temp_Buf[0],
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data.object_property,
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data.array_index, &error_class, &error_code);
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if (len >= 0) {
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/* encode the APDU portion of the packet */
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data.application_data = &Temp_Buf[0];
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data.application_data_len = len;
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/* FIXME: probably need a length limitation sent with encode */
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pdu_len =
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rp_ack_encode_apdu(&Handler_Transmit_Buffer[0],
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service_data->invoke_id, &data);
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#if PRINT_ENABLED
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fprintf(stderr,
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"Sending Read Property Ack for Device!\n");
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#endif
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send = true;
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} else
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error = true;
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} else
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error = true;
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break;
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case OBJECT_ANALOG_INPUT:
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if (Analog_Input_Valid_Instance(data.object_instance)) {
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len = Analog_Input_Encode_Property_APDU(&Temp_Buf[0],
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data.object_instance,
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data.object_property,
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data.array_index, &error_class, &error_code);
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if (len >= 0) {
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/* encode the APDU portion of the packet */
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data.application_data = &Temp_Buf[0];
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data.application_data_len = len;
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/* FIXME: probably need a length limitation sent with encode */
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pdu_len =
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rp_ack_encode_apdu(&Handler_Transmit_Buffer[0],
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service_data->invoke_id, &data);
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#if PRINT_ENABLED
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fprintf(stderr, "Sending Read Property Ack for AI!\n");
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#endif
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send = true;
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} else
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error = true;
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} else
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error = true;
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break;
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case OBJECT_BINARY_INPUT:
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if (Binary_Input_Valid_Instance(data.object_instance)) {
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len = Binary_Input_Encode_Property_APDU(&Temp_Buf[0],
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data.object_instance,
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data.object_property,
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data.array_index, &error_class, &error_code);
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if (len >= 0) {
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/* encode the APDU portion of the packet */
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data.application_data = &Temp_Buf[0];
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data.application_data_len = len;
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/* FIXME: probably need a length limitation sent with encode */
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pdu_len =
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rp_ack_encode_apdu(&Handler_Transmit_Buffer[0],
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service_data->invoke_id, &data);
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#if PRINT_ENABLED
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fprintf(stderr, "Sending Read Property Ack for BI!\n");
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#endif
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send = true;
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} else
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error = true;
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} else
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error = true;
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break;
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case OBJECT_BINARY_OUTPUT:
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if (Binary_Output_Valid_Instance(data.object_instance)) {
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len = Binary_Output_Encode_Property_APDU(&Temp_Buf[0],
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data.object_instance,
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data.object_property,
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data.array_index, &error_class, &error_code);
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if (len >= 0) {
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/* encode the APDU portion of the packet */
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data.application_data = &Temp_Buf[0];
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data.application_data_len = len;
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/* FIXME: probably need a length limitation sent with encode */
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pdu_len =
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rp_ack_encode_apdu(&Handler_Transmit_Buffer[0],
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service_data->invoke_id, &data);
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#if PRINT_ENABLED
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fprintf(stderr, "Sending Read Property Ack for BO!\n");
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#endif
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send = true;
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} else
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error = true;
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} else
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error = true;
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break;
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case OBJECT_BINARY_VALUE:
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if (Binary_Value_Valid_Instance(data.object_instance)) {
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len = Binary_Value_Encode_Property_APDU(&Temp_Buf[0],
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data.object_instance,
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data.object_property,
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data.array_index, &error_class, &error_code);
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if (len >= 0) {
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/* encode the APDU portion of the packet */
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data.application_data = &Temp_Buf[0];
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data.application_data_len = len;
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/* FIXME: probably need a length limitation sent with encode */
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pdu_len =
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rp_ack_encode_apdu(&Handler_Transmit_Buffer[0],
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service_data->invoke_id, &data);
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#if PRINT_ENABLED
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fprintf(stderr, "Sending Read Property Ack for BV!\n");
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#endif
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send = true;
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} else
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error = true;
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} else
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error = true;
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break;
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case OBJECT_ANALOG_OUTPUT:
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if (Analog_Output_Valid_Instance(data.object_instance)) {
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len = Analog_Output_Encode_Property_APDU(&Temp_Buf[0],
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data.object_instance,
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data.object_property,
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data.array_index, &error_class, &error_code);
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if (len >= 0) {
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/* encode the APDU portion of the packet */
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data.application_data = &Temp_Buf[0];
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data.application_data_len = len;
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/* FIXME: probably need a length limitation sent with encode */
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pdu_len =
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rp_ack_encode_apdu(&Handler_Transmit_Buffer[0],
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service_data->invoke_id, &data);
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#if PRINT_ENABLED
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fprintf(stderr, "Sending Read Property Ack for AO!\n");
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#endif
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send = true;
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} else
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error = true;
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} else
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error = true;
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break;
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case OBJECT_ANALOG_VALUE:
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if (Analog_Value_Valid_Instance(data.object_instance)) {
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len = Analog_Value_Encode_Property_APDU(&Temp_Buf[0],
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data.object_instance,
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data.object_property,
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data.array_index, &error_class, &error_code);
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if (len >= 0) {
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/* encode the APDU portion of the packet */
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data.application_data = &Temp_Buf[0];
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data.application_data_len = len;
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/* FIXME: probably need a length limitation sent with encode */
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pdu_len =
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rp_ack_encode_apdu(&Handler_Transmit_Buffer[0],
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service_data->invoke_id, &data);
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#if PRINT_ENABLED
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fprintf(stderr, "Sending Read Property Ack for AV!\n");
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#endif
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send = true;
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} else
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error = true;
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} else
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error = true;
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break;
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case OBJECT_LIFE_SAFETY_POINT:
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if (Life_Safety_Point_Valid_Instance(data.object_instance)) {
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len = Life_Safety_Point_Encode_Property_APDU(&Temp_Buf[0],
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data.object_instance,
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data.object_property,
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data.array_index, &error_class, &error_code);
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if (len >= 0) {
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/* encode the APDU portion of the packet */
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data.application_data = &Temp_Buf[0];
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data.application_data_len = len;
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/* FIXME: probably need a length limitation sent with encode */
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pdu_len =
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rp_ack_encode_apdu(&Handler_Transmit_Buffer[0],
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service_data->invoke_id, &data);
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#if PRINT_ENABLED
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fprintf(stderr,
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"Sending Read Property Ack for LSP!\n");
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#endif
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send = true;
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} else
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error = true;
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} else
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error = true;
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break;
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case OBJECT_MULTI_STATE_OUTPUT:
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if (Multistate_Output_Valid_Instance(data.object_instance)) {
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len = Multistate_Output_Encode_Property_APDU(&Temp_Buf[0],
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data.object_instance,
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data.object_property,
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data.array_index, &error_class, &error_code);
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if (len >= 0) {
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/* encode the APDU portion of the packet */
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data.application_data = &Temp_Buf[0];
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data.application_data_len = len;
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/* FIXME: probably need a length limitation sent with encode */
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pdu_len =
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rp_ack_encode_apdu(&Handler_Transmit_Buffer[0],
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service_data->invoke_id, &data);
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#if PRINT_ENABLED
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fprintf(stderr,
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"Sending Read Property Ack for MSO!\n");
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#endif
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send = true;
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} else
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error = true;
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} else
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error = true;
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break;
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#if BACFILE
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case OBJECT_FILE:
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if (bacfile_valid_instance(data.object_instance)) {
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len = bacfile_encode_property_apdu(&Temp_Buf[0],
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data.object_instance,
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data.object_property,
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data.array_index, &error_class, &error_code);
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if (len >= 0) {
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/* encode the APDU portion of the packet */
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data.application_data = &Temp_Buf[0];
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data.application_data_len = len;
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/* FIXME: probably need a length limitation sent with encode */
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pdu_len =
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rp_ack_encode_apdu(&Handler_Transmit_Buffer[0],
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service_data->invoke_id, &data);
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#if PRINT_ENABLED
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fprintf(stderr,
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"Sending Read Property Ack for File!\n");
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#endif
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send = true;
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} else
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error = true;
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} else
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error = true;
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break;
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#endif /* BACFILE */
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default:
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error = true;
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break;
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}
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}
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if (error) {
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pdu_len = bacerror_encode_apdu(&Handler_Transmit_Buffer[0],
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service_data->invoke_id,
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SERVICE_CONFIRMED_READ_PROPERTY, error_class, error_code);
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#if PRINT_ENABLED
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fprintf(stderr, "Sending Read Property Error!\n");
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#endif
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send = true;
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}
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if (send) {
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npdu_encode_confirmed_apdu(&npdu_data, MESSAGE_PRIORITY_NORMAL);
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bytes_sent = datalink_send_pdu(src, &npdu_data, &Handler_Transmit_Buffer[0], pdu_len); /* number of bytes of data */
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#if PRINT_ENABLED
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if (bytes_sent <= 0)
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fprintf(stderr, "Failed to send PDU (%s)!\n", strerror(errno));
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#endif
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}
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return;
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}
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