NG_HCI_MAX_CON_NUM
if (s > NG_HCI_MAX_CON_NUM)
s = NG_HCI_MAX_CON_NUM;
p->num_connections > NG_HCI_MAX_CON_NUM ||
r.num_connections = NG_HCI_MAX_CON_NUM;
r.connections = calloc(NG_HCI_MAX_CON_NUM, sizeof(ng_hci_node_con_ep));