/** Local function which responds with either the requested object name
* or object ID, if the Device has a match.
* @param data [in] The decoded who-has payload from the request.
*/
static void match_name_or_object(
BACNET_WHO_HAS_DATA * data)
{
int object_type = 0;
uint32_t object_instance = 0;
bool found = false;
BACNET_CHARACTER_STRING object_name;
/* do we have such an object? If so, send an I-Have.
note: we should have only 1 of such an object */
if (data->is_object_name) {
/* valid name in my device? */
found =
Device_Valid_Object_Name(&data->object.name, &object_type,
&object_instance);
if (found) {
Send_I_Have(Device_Object_Instance_Number(),
(BACNET_OBJECT_TYPE) object_type, object_instance,
&data->object.name);
}
} else {
/* valid object_name copy in my device? */
found =
Device_Object_Name_Copy((BACNET_OBJECT_TYPE) data->
object.identifier.type, data->object.identifier.instance,
&object_name);
if (found) {
Send_I_Have(Device_Object_Instance_Number(),
(BACNET_OBJECT_TYPE) data->object.identifier.type,
data->object.identifier.instance, &object_name);
}
}
}
void handler_who_has(
uint8_t * service_request,
uint16_t service_len,
BACNET_ADDRESS * src)
{
int len = 0;
BACNET_WHO_HAS_DATA data;
bool directed_to_me = false;
int object_type = 0;
uint32_t object_instance = 0;
char *object_name = NULL;
bool found = false;
(void) src;
len = whohas_decode_service_request(service_request, service_len, &data);
if (len > 0) {
if ((data.low_limit == -1) || (data.high_limit == -1))
directed_to_me = true;
else if ((Device_Object_Instance_Number() >= (uint32_t) data.low_limit)
&& (Device_Object_Instance_Number() <= (uint32_t) data.high_limit))
directed_to_me = true;
if (directed_to_me) {
/* do we have such an object? If so, send an I-Have.
note: we should have only 1 of such an object */
if (data.object_name) {
/* valid name in my device? */
object_name = characterstring_value(&data.object.name);
found =
Device_Valid_Object_Name(object_name, &object_type,
&object_instance);
if (found)
Send_I_Have(Device_Object_Instance_Number(), object_type,
object_instance, object_name);
} else {
/* valid object in my device? */
object_name =
Device_Valid_Object_Id(data.object.identifier.type,
data.object.identifier.instance);
if (object_name)
Send_I_Have(Device_Object_Instance_Number(),
data.object.identifier.type,
data.object.identifier.instance, object_name);
}
}
}
return;
}
