static bool cov_subscribe(
BACNET_ADDRESS * src,
BACNET_SUBSCRIBE_COV_DATA * cov_data,
BACNET_ERROR_CLASS * error_class,
BACNET_ERROR_CODE * error_code)
{
bool status = false; /* return value */
BACNET_OBJECT_TYPE object_type = MAX_BACNET_OBJECT_TYPE;
uint32_t object_instance = 0;
object_type =
(BACNET_OBJECT_TYPE) cov_data->monitoredObjectIdentifier.type;
object_instance = cov_data->monitoredObjectIdentifier.instance;
status = Device_Valid_Object_Id(object_type, object_instance);
if (status) {
status = Device_Value_List_Supported(object_type);
if (status) {
status =
cov_list_subscribe(src, cov_data, error_class, error_code);
} else {
*error_class = ERROR_CLASS_OBJECT;
*error_code = ERROR_CODE_OPTIONAL_FUNCTIONALITY_NOT_SUPPORTED;
}
} else {
*error_class = ERROR_CLASS_OBJECT;
*error_code = ERROR_CODE_UNKNOWN_OBJECT;
}
return status;
}
bool Device_Valid_Object_Name(
const char *object_name,
int *object_type,
uint32_t * object_instance)
{
bool found = false;
int type = 0;
uint32_t instance;
unsigned max_objects = 0, i = 0;
bool check_id = false;
char *name = NULL;
max_objects = Device_Object_List_Count();
for (i = 0; i < max_objects; i++) {
check_id = Device_Object_List_Identifier(i, &type, &instance);
if (check_id) {
name = Device_Valid_Object_Id(type, instance);
if (strcmp(name, object_name) == 0) {
found = true;
if (object_type) {
*object_type = type;
}
if (object_instance) {
*object_instance = instance;
}
break;
}
}
}
return found;
}
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;
}
