static void print_desc(struct gatt_db_attribute *attr, void *user_data)
{
printf("\t\t " COLOR_MAGENTA "descr" COLOR_OFF
" - handle: 0x%04x, uuid: ",
gatt_db_attribute_get_handle(attr));
print_uuid(gatt_db_attribute_get_type(attr));
}
static struct descriptor *descriptor_create(struct gatt_db_attribute *attr,
struct characteristic *chrc)
{
struct descriptor *desc;
desc = new0(struct descriptor, 1);
desc->chrc = chrc;
desc->attr = attr;
desc->handle = gatt_db_attribute_get_handle(attr);
bt_uuid_to_uuid128(gatt_db_attribute_get_type(attr), &desc->uuid);
desc->path = g_strdup_printf("%s/desc%04x", chrc->path, desc->handle);
if (!g_dbus_register_interface(btd_get_dbus_connection(), desc->path,
GATT_DESCRIPTOR_IFACE,
descriptor_methods, NULL,
descriptor_properties,
desc, descriptor_free)) {
error("Unable to register GATT descriptor with handle 0x%04x",
desc->handle);
descriptor_free(desc);
return NULL;
}
DBG("Exported GATT characteristic descriptor: %s", desc->path);
if (uuid_cmp(&desc->uuid, GATT_CHARAC_EXT_PROPER_UUID))
chrc->ext_props_handle = desc->handle;
return desc;
}
static bool encode_find_info_rsp(struct gatt_db *db, struct queue *q,
uint16_t mtu,
uint8_t *pdu, uint16_t *len)
{
uint16_t handle;
struct gatt_db_attribute *attr;
const bt_uuid_t *type;
int uuid_len, cur_uuid_len;
int iter = 0;
*len = 0;
while (queue_peek_head(q)) {
attr = queue_pop_head(q);
handle = gatt_db_attribute_get_handle(attr);
type = gatt_db_attribute_get_type(attr);
if (!handle || !type)
return false;
cur_uuid_len = bt_uuid_len(type);
if (iter == 0) {
switch (cur_uuid_len) {
case 2:
uuid_len = 2;
pdu[0] = 0x01;
break;
case 4:
case 16:
uuid_len = 16;
pdu[0] = 0x02;
break;
default:
return false;
}
iter++;
} else if (cur_uuid_len != uuid_len)
break;
if (iter + uuid_len + 2 > mtu - 1)
break;
put_le16(handle, pdu + iter);
bt_uuid_to_le(type, pdu + iter + 2);
iter += uuid_len + 2;
}
*len = iter;
return true;
}
