/* BACnetDeviceObjectPropertyReference ::= SEQUENCE {
object-identifier [0] BACnetObjectIdentifier,
property-identifier [1] BACnetPropertyIdentifier,
property-array-index [2] Unsigned OPTIONAL,
-- used only with array datatype
-- if omitted with an array then
-- the entire array is referenced
device-identifier [3] BACnetObjectIdentifier OPTIONAL
}
*/
int bacapp_decode_device_obj_property_ref(
uint8_t * apdu,
BACNET_DEVICE_OBJECT_PROPERTY_REFERENCE * value)
{
int len;
int apdu_len = 0;
uint32_t enumValue;
/* object-identifier [0] BACnetObjectIdentifier */
if (-1 == (len =
decode_context_object_id(&apdu[apdu_len], 0,
&value->objectIdentifier.type,
&value->objectIdentifier.instance))) {
return -1;
}
apdu_len += len;
/* property-identifier [1] BACnetPropertyIdentifier */
if (-1 == (len =
decode_context_enumerated(&apdu[apdu_len], 1, &enumValue))) {
return -1;
}
value->propertyIdentifier = (BACNET_PROPERTY_ID) enumValue;
apdu_len += len;
/* property-array-index [2] Unsigned OPTIONAL */
if (decode_is_context_tag(&apdu[apdu_len], 2) &&
!decode_is_closing_tag(&apdu[apdu_len])) {
if (-1 == (len =
decode_context_unsigned(&apdu[apdu_len], 2,
&value->arrayIndex))) {
return -1;
}
apdu_len += len;
} else {
value->arrayIndex = BACNET_ARRAY_ALL;
}
/* device-identifier [3] BACnetObjectIdentifier OPTIONAL */
if (decode_is_context_tag(&apdu[apdu_len], 3) &&
!decode_is_closing_tag(&apdu[apdu_len])) {
if (-1 == (len =
decode_context_object_id(&apdu[apdu_len], 3,
&value->deviceIndentifier.type,
&value->deviceIndentifier.instance))) {
return -1;
}
apdu_len += len;
} else {
value->deviceIndentifier.type = BACNET_NO_DEV_TYPE;
value->deviceIndentifier.instance = BACNET_NO_DEV_ID;
}
return apdu_len;
}
/* BACnetDeviceObjectReference ::= SEQUENCE {
device-identifier [0] BACnetObjectIdentifier OPTIONAL,
object-identifier [1] BACnetObjectIdentifier
}*/
int bacapp_decode_device_obj_ref(
uint8_t * apdu,
BACNET_DEVICE_OBJECT_REFERENCE * value)
{
int len;
int apdu_len = 0;
/* device-identifier [0] BACnetObjectIdentifier OPTIONAL */
if (decode_is_context_tag(&apdu[apdu_len], 0) &&
!decode_is_closing_tag(&apdu[apdu_len])) {
if (-1 == (len =
decode_context_object_id(&apdu[apdu_len], 0,
&value->deviceIndentifier.type,
&value->deviceIndentifier.instance))) {
return -1;
}
apdu_len += len;
} else {
value->deviceIndentifier.type = BACNET_NO_DEV_TYPE;
value->deviceIndentifier.instance = BACNET_NO_DEV_ID;
}
/* object-identifier [1] BACnetObjectIdentifier */
if (-1 == (len =
decode_context_object_id(&apdu[apdu_len], 1,
&value->objectIdentifier.type,
&value->objectIdentifier.instance))) {
return -1;
}
apdu_len += len;
return apdu_len;
}
int wpm_decode_object_property(
uint8_t * apdu,
uint16_t apdu_len,
BACNET_WRITE_PROPERTY_DATA * wp_data)
{
uint8_t tag_number = 0;
uint32_t len_value = 0;
uint32_t ulVal = 0;
int len = 0, i = 0;
if ((apdu) && (apdu_len) && (wp_data)) {
wp_data->array_index = BACNET_ARRAY_ALL;
wp_data->priority = BACNET_MAX_PRIORITY;
wp_data->application_data_len = 0;
/* tag 0 - Property Identifier */
len +=
decode_tag_number_and_value(&apdu[len], &tag_number, &len_value);
if (tag_number == 0) {
len += decode_enumerated(&apdu[len], len_value, &ulVal);
wp_data->object_property = ulVal;
} else {
wp_data->error_code = ERROR_CODE_REJECT_INVALID_TAG;
return BACNET_STATUS_REJECT;
}
/* tag 1 - Property Array Index - optional */
len +=
decode_tag_number_and_value(&apdu[len], &tag_number, &len_value);
if (tag_number == 1) {
len += decode_unsigned(&apdu[len], len_value, &ulVal);
wp_data->array_index = ulVal;
len +=
decode_tag_number_and_value(&apdu[len], &tag_number,
&len_value);
}
/* tag 2 - Property Value */
if ((tag_number == 2) && (decode_is_opening_tag(&apdu[len - 1]))) {
len--;
wp_data->application_data_len =
bacapp_data_len(&apdu[len], (unsigned) (apdu_len - len),
wp_data->object_property);
len++;
/* copy application data */
for (i = 0; i < wp_data->application_data_len; i++) {
wp_data->application_data[i] = apdu[len + i];
}
len += wp_data->application_data_len;
len +=
decode_tag_number_and_value(&apdu[len], &tag_number,
&len_value);
/* closing tag 2 */
if ((tag_number != 2) && (decode_is_closing_tag(&apdu[len - 1]))) {
wp_data->error_code = ERROR_CODE_REJECT_INVALID_TAG;
return BACNET_STATUS_REJECT;
}
} else {
wp_data->error_code = ERROR_CODE_REJECT_INVALID_TAG;
return BACNET_STATUS_REJECT;
}
/* tag 3 - Priority - optional */
len +=
decode_tag_number_and_value(&apdu[len], &tag_number, &len_value);
if (tag_number == 3) {
len += decode_unsigned(&apdu[len], len_value, &ulVal);
wp_data->priority = ulVal;
} else
len--;
} else {
wp_data->error_code = ERROR_CODE_REJECT_MISSING_REQUIRED_PARAMETER;
return BACNET_STATUS_REJECT;
}
return len;
}
