+static inline bool is_igmp(const struct flow *flow)
+{
+ return (flow->dl_type == htons(ETH_TYPE_IP)
+ && flow->nw_proto == IPPROTO_IGMP);
+}
+
+static inline bool is_mld(const struct flow *flow)
+{
+ return is_icmpv6(flow)
+ && (flow->tp_src == htons(MLD_QUERY)
+ || flow->tp_src == htons(MLD_REPORT)
+ || flow->tp_src == htons(MLD_DONE)
+ || flow->tp_src == htons(MLD2_REPORT));
+}
+
+static inline bool is_mld_query(const struct flow *flow)
+{
+ return is_icmpv6(flow) && flow->tp_src == htons(MLD_QUERY);
+}
+
+static inline bool is_mld_report(const struct flow *flow)
+{
+ return is_mld(flow) && !is_mld_query(flow);
+}
+