ipsp_ids_flow_cmp
static inline int ipsp_ids_flow_cmp(const struct ipsec_ids *,
RBT_PROTOTYPE(ipsec_ids_flows, ipsec_ids, id_node_id, ipsp_ids_flow_cmp);
RBT_GENERATE(ipsec_ids_flows, ipsec_ids, id_node_id, ipsp_ids_flow_cmp);