skarg
506 lines
16 KiB
C
506 lines
16 KiB
C
/*####COPYRIGHTBEGIN####
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-------------------------------------------
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Copyright (C) 2009 Steve Karg
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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The Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA.
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As a special exception, if other files instantiate templates or
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use macros or inline functions from this file, or you compile
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this file and link it with other works to produce a work based
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on this file, this file does not by itself cause the resulting
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work to be covered by the GNU General Public License. However
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the source code for this file must still be made available in
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accordance with section (3) of the GNU General Public License.
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This exception does not invalidate any other reasons why a work
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based on this file might be covered by the GNU General Public
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License.
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-------------------------------------------
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####COPYRIGHTEND####*/
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#include <stdint.h>
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#include "bacenum.h"
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#include "bacdcode.h"
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#include "bacdef.h"
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#include "getevent.h"
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/* encode service */
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int getevent_encode_apdu(
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uint8_t * apdu,
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uint8_t invoke_id,
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BACNET_OBJECT_ID * lastReceivedObjectIdentifier)
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{
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int len = 0; /* length of each encoding */
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int apdu_len = 0; /* total length of the apdu, return value */
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if (apdu) {
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apdu[0] = PDU_TYPE_CONFIRMED_SERVICE_REQUEST;
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apdu[1] = encode_max_segs_max_apdu(0, MAX_APDU);
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apdu[2] = invoke_id;
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apdu[3] = SERVICE_CONFIRMED_GET_EVENT_INFORMATION;
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apdu_len = 4;
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/* encode optional parameter */
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if (lastReceivedObjectIdentifier) {
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len =
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encode_context_object_id(&apdu[apdu_len], 0,
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lastReceivedObjectIdentifier->type,
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lastReceivedObjectIdentifier->instance);
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apdu_len += len;
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}
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}
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return apdu_len;
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}
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/* decode the service request only */
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int getevent_decode_service_request(
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uint8_t * apdu,
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unsigned apdu_len,
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BACNET_OBJECT_ID * lastReceivedObjectIdentifier)
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{
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unsigned len = 0;
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/* check for value pointers */
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if (apdu_len && lastReceivedObjectIdentifier) {
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/* Tag 0: Object ID - optional */
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if (!decode_is_context_tag(&apdu[len++], 0))
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return -1;
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len +=
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decode_object_id(&apdu[len], &lastReceivedObjectIdentifier->type,
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&lastReceivedObjectIdentifier->instance);
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}
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return (int) len;
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}
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int getevent_ack_encode_apdu_init(
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uint8_t * apdu,
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size_t max_apdu,
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uint8_t invoke_id)
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{
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int apdu_len = 0; /* total length of the apdu, return value */
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if (apdu) {
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apdu[0] = PDU_TYPE_COMPLEX_ACK; /* complex ACK service */
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apdu[1] = invoke_id; /* original invoke id from request */
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apdu[2] = SERVICE_CONFIRMED_GET_EVENT_INFORMATION;
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apdu_len = 3;
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/* service ack follows */
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/* Tag 0: listOfEventSummaries */
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apdu_len += encode_opening_tag(&apdu[apdu_len], 0);
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}
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return apdu_len;
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}
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int getevent_ack_encode_apdu_data(
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uint8_t * apdu,
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size_t max_apdu,
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BACNET_GET_EVENT_INFORMATION_DATA * get_event_data)
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{
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int apdu_len = 0; /* total length of the apdu, return value */
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BACNET_GET_EVENT_INFORMATION_DATA *event_data;
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unsigned i = 0; /* counter */
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if (apdu) {
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event_data = get_event_data;
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while (event_data) {
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/* Tag 0: objectIdentifier */
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apdu_len +=
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encode_context_object_id(&apdu[apdu_len], 0,
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event_data->objectIdentifier.type,
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event_data->objectIdentifier.instance);
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/* Tag 1: eventState */
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apdu_len +=
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encode_context_enumerated(&apdu[apdu_len], 1,
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event_data->eventState);
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/* Tag 2: acknowledgedTransitions */
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apdu_len +=
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encode_context_bitstring(&apdu[apdu_len], 2,
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&event_data->acknowledgedTransitions);
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/* Tag 3: eventTimeStamps */
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apdu_len += encode_opening_tag(&apdu[apdu_len], 3);
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for (i = 0; i < 3; i++) {
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apdu_len +=
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bacapp_encode_timestamp(&apdu[apdu_len],
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&event_data->eventTimeStamps[i]);
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}
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apdu_len += encode_closing_tag(&apdu[apdu_len], 3);
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/* Tag 4: notifyType */
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apdu_len +=
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encode_context_enumerated(&apdu[apdu_len], 4,
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event_data->notifyType);
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/* Tag 5: eventEnable */
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apdu_len +=
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encode_context_bitstring(&apdu[apdu_len], 5,
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&event_data->eventEnable);
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/* Tag 6: eventPriorities */
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apdu_len += encode_opening_tag(&apdu[apdu_len], 6);
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for (i = 0; i < 3; i++) {
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apdu_len +=
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encode_application_unsigned(&apdu[apdu_len],
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event_data->eventPriorities[i]);
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}
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apdu_len += encode_closing_tag(&apdu[apdu_len], 6);
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event_data = event_data->next;
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}
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}
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return apdu_len;
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}
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int getevent_ack_encode_apdu_end(
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uint8_t * apdu,
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size_t max_apdu,
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bool moreEvents)
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{
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int apdu_len = 0; /* total length of the apdu, return value */
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if (apdu) {
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apdu_len += encode_closing_tag(&apdu[apdu_len], 0);
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apdu_len += encode_context_boolean(&apdu[apdu_len], 1, moreEvents);
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}
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return apdu_len;
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}
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int getevent_ack_decode_service_request(
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uint8_t * apdu,
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int apdu_len, /* total length of the apdu */
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BACNET_GET_EVENT_INFORMATION_DATA * get_event_data,
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bool * moreEvents)
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{
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uint8_t tag_number = 0;
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uint32_t len_value = 0;
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int len = 0; /* total length of decodes */
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uint32_t enum_value = 0; /* for decoding */
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BACNET_GET_EVENT_INFORMATION_DATA *event_data;
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unsigned i = 0; /* counter */
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/* FIXME: check apdu_len against the len during decode */
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event_data = get_event_data;
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if (apdu && apdu_len && event_data && moreEvents) {
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if (!decode_is_opening_tag_number(&apdu[len], 0)) {
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return -1;
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}
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len++;
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while (event_data) {
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/* Tag 0: objectIdentifier */
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if (decode_is_context_tag(&apdu[len], 0)) {
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len +=
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decode_tag_number_and_value(&apdu[len], &tag_number,
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&len_value);
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len +=
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decode_object_id(&apdu[len],
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&event_data->objectIdentifier.type,
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&event_data->objectIdentifier.instance);
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} else {
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return -1;
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}
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/* Tag 1: eventState */
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if (decode_is_context_tag(&apdu[len], 1)) {
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len +=
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decode_tag_number_and_value(&apdu[len], &tag_number,
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&len_value);
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len += decode_enumerated(&apdu[len], len_value, &enum_value);
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event_data->eventState = enum_value;
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} else {
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return -1;
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}
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/* Tag 2: acknowledgedTransitions */
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if (decode_is_context_tag(&apdu[len], 2)) {
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len +=
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decode_tag_number_and_value(&apdu[len], &tag_number,
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&len_value);
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len +=
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decode_bitstring(&apdu[len], len_value,
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&event_data->acknowledgedTransitions);
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} else {
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return -1;
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}
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/* Tag 3: eventTimeStamps */
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if (decode_is_opening_tag_number(&apdu[len], 3)) {
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len +=
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decode_tag_number_and_value(&apdu[len], &tag_number,
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&len_value);
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for (i = 0; i < 3; i++) {
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len +=
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bacapp_decode_timestamp(&apdu[len],
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&event_data->eventTimeStamps[i]);
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}
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} else {
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return -1;
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}
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if (decode_is_closing_tag_number(&apdu[len], 3)) {
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len +=
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decode_tag_number_and_value(&apdu[len], &tag_number,
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&len_value);
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} else {
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return -1;
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}
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/* Tag 4: notifyType */
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if (decode_is_context_tag(&apdu[len], 4)) {
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len +=
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decode_tag_number_and_value(&apdu[len], &tag_number,
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&len_value);
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len +=
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decode_enumerated(&apdu[apdu_len], len_value, &enum_value);
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event_data->notifyType = enum_value;
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} else {
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return -1;
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}
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/* Tag 5: eventEnable */
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if (decode_is_context_tag(&apdu[len], 5)) {
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len +=
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decode_tag_number_and_value(&apdu[len], &tag_number,
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&len_value);
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len +=
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decode_bitstring(&apdu[len], len_value,
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&event_data->eventEnable);
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} else {
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return -1;
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}
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/* Tag 6: eventPriorities */
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if (decode_is_opening_tag_number(&apdu[len], 6)) {
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len +=
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decode_tag_number_and_value(&apdu[len], &tag_number,
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&len_value);
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for (i = 0; i < 3; i++) {
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len +=
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decode_tag_number_and_value(&apdu[len], &tag_number,
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&len_value);
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len +=
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decode_unsigned(&apdu[len], len_value,
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&event_data->eventPriorities[i]);
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}
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} else {
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return -1;
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}
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if (decode_is_closing_tag_number(&apdu[len], 6)) {
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len +=
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decode_tag_number_and_value(&apdu[len], &tag_number,
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&len_value);
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} else {
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return -1;
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}
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if (decode_is_closing_tag_number(&apdu[len], 0)) {
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len +=
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decode_tag_number_and_value(&apdu[len], &tag_number,
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&len_value);
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event_data->next = NULL;
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}
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event_data = event_data->next;
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}
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if (decode_is_context_tag(&apdu[len], 1)) {
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len +=
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decode_tag_number_and_value(&apdu[len], &tag_number,
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&len_value);
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*moreEvents = decode_boolean(len_value);
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} else {
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return -1;
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}
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}
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return len;
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}
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#ifdef TEST
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#include <assert.h>
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#include <string.h>
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#include "ctest.h"
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int getevent_decode_apdu(
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uint8_t * apdu,
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unsigned apdu_len,
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uint8_t * invoke_id,
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BACNET_OBJECT_ID * lastReceivedObjectIdentifier)
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{
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int len = 0;
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unsigned offset = 0;
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if (!apdu)
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return -1;
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/* optional checking - most likely was already done prior to this call */
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if (apdu[0] != PDU_TYPE_CONFIRMED_SERVICE_REQUEST)
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return -1;
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/* apdu[1] = encode_max_segs_max_apdu(0, MAX_APDU); */
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*invoke_id = apdu[2]; /* invoke id - filled in by net layer */
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if (apdu[3] != SERVICE_CONFIRMED_GET_EVENT_INFORMATION)
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return -1;
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offset = 4;
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if (apdu_len > offset) {
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len =
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getevent_decode_service_request(&apdu[offset], apdu_len - offset,
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lastReceivedObjectIdentifier);
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}
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return len;
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}
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int getevent_ack_decode_apdu(
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uint8_t * apdu,
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int apdu_len, /* total length of the apdu */
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uint8_t * invoke_id,
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BACNET_GET_EVENT_INFORMATION_DATA * get_event_data,
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bool * moreEvents)
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{
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int len = 0;
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int offset = 0;
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if (!apdu)
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return -1;
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/* optional checking - most likely was already done prior to this call */
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if (apdu[0] != PDU_TYPE_COMPLEX_ACK)
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return -1;
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*invoke_id = apdu[1];
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if (apdu[2] != SERVICE_CONFIRMED_GET_EVENT_INFORMATION)
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return -1;
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offset = 3;
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if (apdu_len > offset) {
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len =
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getevent_ack_decode_service_request(&apdu[offset],
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apdu_len - offset, get_event_data, moreEvents);
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}
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return len;
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}
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void testGetEventInformationAck(
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Test * pTest)
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{
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uint8_t apdu[480] = { 0 };
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int len = 0;
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int apdu_len = 0;
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uint8_t invoke_id = 1;
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uint8_t test_invoke_id = 0;
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BACNET_GET_EVENT_INFORMATION_DATA event_data;
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BACNET_GET_EVENT_INFORMATION_DATA test_event_data;
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bool moreEvents = false;
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bool test_moreEvents = false;
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unsigned i = 0;
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event_data.objectIdentifier.type = OBJECT_BINARY_INPUT;
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event_data.objectIdentifier.instance = 1;
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event_data.eventState = EVENT_STATE_NORMAL;
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bitstring_init(&event_data.acknowledgedTransitions);
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bitstring_set_bit(&event_data.acknowledgedTransitions,
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TRANSITION_TO_OFFNORMAL, false);
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bitstring_set_bit(&event_data.acknowledgedTransitions, TRANSITION_TO_FAULT,
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false);
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bitstring_set_bit(&event_data.acknowledgedTransitions,
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TRANSITION_TO_NORMAL, false);
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for (i = 0; i < 3; i++) {
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event_data.eventTimeStamps[i].tag = TIME_STAMP_SEQUENCE;
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event_data.eventTimeStamps[i].value.sequenceNum = 0;
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}
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event_data.notifyType = NOTIFY_ALARM;
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bitstring_init(&event_data.eventEnable);
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bitstring_set_bit(&event_data.eventEnable, TRANSITION_TO_OFFNORMAL, true);
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bitstring_set_bit(&event_data.eventEnable, TRANSITION_TO_FAULT, true);
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bitstring_set_bit(&event_data.eventEnable, TRANSITION_TO_NORMAL, true);
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for (i = 0; i < 3; i++) {
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event_data.eventPriorities[i] = 1;
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}
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event_data.next = NULL;
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len = getevent_ack_encode_apdu_init(&apdu[0], sizeof(apdu), invoke_id);
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ct_test(pTest, len != 0);
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ct_test(pTest, len != -1);
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apdu_len = len;
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len = getevent_ack_encode_apdu_data(&apdu[apdu_len],
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sizeof(apdu)-apdu_len, &event_data);
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ct_test(pTest, len != 0);
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ct_test(pTest, len != -1);
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apdu_len += len;
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len = getevent_ack_encode_apdu_end(&apdu[apdu_len],
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sizeof(apdu)-apdu_len, moreEvents);
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ct_test(pTest, len != 0);
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ct_test(pTest, len != -1);
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apdu_len += len;
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len = getevent_ack_decode_apdu(&apdu[0], apdu_len, /* total length of the apdu */
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&test_invoke_id, &test_event_data, &test_moreEvents);
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ct_test(pTest, len != -1);
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ct_test(pTest, test_invoke_id == invoke_id);
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ct_test(pTest,
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event_data.objectIdentifier.type ==
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test_event_data.objectIdentifier.type);
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ct_test(pTest,
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event_data.objectIdentifier.instance ==
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test_event_data.objectIdentifier.instance);
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ct_test(pTest, event_data.eventState == test_event_data.eventState);
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}
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void testGetEventInformation(
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Test * pTest)
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{
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uint8_t apdu[480] = { 0 };
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int len = 0;
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int apdu_len = 0;
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uint8_t invoke_id = 128;
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uint8_t test_invoke_id = 0;
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BACNET_OBJECT_ID lastReceivedObjectIdentifier;
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BACNET_OBJECT_ID test_lastReceivedObjectIdentifier;
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lastReceivedObjectIdentifier.type = OBJECT_BINARY_INPUT;
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lastReceivedObjectIdentifier.instance = 12345;
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len =
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getevent_encode_apdu(&apdu[0], invoke_id,
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&lastReceivedObjectIdentifier);
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ct_test(pTest, len != 0);
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apdu_len = len;
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len =
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getevent_decode_apdu(&apdu[0], apdu_len, &test_invoke_id,
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&test_lastReceivedObjectIdentifier);
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ct_test(pTest, len != -1);
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ct_test(pTest, test_invoke_id == invoke_id);
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ct_test(pTest,
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test_lastReceivedObjectIdentifier.type ==
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lastReceivedObjectIdentifier.type);
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ct_test(pTest,
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test_lastReceivedObjectIdentifier.instance ==
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lastReceivedObjectIdentifier.instance);
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return;
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}
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#ifdef TEST_GET_EVENT_INFORMATION
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int main(
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void)
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{
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Test *pTest;
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bool rc;
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pTest = ct_create("BACnet GetEventInformation", NULL);
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/* individual tests */
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rc = ct_addTestFunction(pTest, testGetEventInformation);
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assert(rc);
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rc = ct_addTestFunction(pTest, testGetEventInformationAck);
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assert(rc);
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ct_setStream(pTest, stdout);
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ct_run(pTest);
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(void) ct_report(pTest);
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ct_destroy(pTest);
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return 0;
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}
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#endif
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#endif /* TEST */
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