void cfm_process_heartbeat(struct cfm *, const struct ofpbuf *packet);
int cfm_get_fault(const struct cfm *);
int cfm_get_health(const struct cfm *);
-bool cfm_get_opup(const struct cfm *);
+int cfm_get_opup(const struct cfm *);
void cfm_get_remote_mpids(const struct cfm *, const uint64_t **rmps,
size_t *n_rmps);
const char *cfm_fault_reason_to_str(int fault);