net: bridge: add support for IGMP/MLD stats and export them via netlink

[cascardo/linux.git] / net / bridge / br_private.h

diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 52edecf..4dc8511 100644 (file)
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -75,6 +75,12 @@ struct bridge_mcast_querier {
        struct br_ip addr;
        struct net_bridge_port __rcu    *port;
 };
+
+/* IGMP/MLD statistics */
+struct bridge_mcast_stats {
+       struct br_mcast_stats mstats;
+       struct u64_stats_sync syncp;
+};
 #endif
 
 struct br_vlan_stats {
@@ -229,6 +235,7 @@ struct net_bridge_port
        struct bridge_mcast_own_query   ip6_own_query;
 #endif /* IS_ENABLED(CONFIG_IPV6) */
        unsigned char                   multicast_router;
+       struct bridge_mcast_stats       __percpu *mcast_stats;
        struct timer_list               multicast_router_timer;
        struct hlist_head               mglist;
        struct hlist_node               rlist;
@@ -315,6 +322,7 @@ struct net_bridge
        u8                              multicast_querier:1;
        u8                              multicast_query_use_ifaddr:1;
        u8                              has_ipv6_addr:1;
+       u8                              multicast_stats_enabled:1;
 
        u32                             hash_elasticity;
        u32                             hash_max;
@@ -337,6 +345,7 @@ struct net_bridge
        struct bridge_mcast_other_query ip4_other_query;
        struct bridge_mcast_own_query   ip4_own_query;
        struct bridge_mcast_querier     ip4_querier;
+       struct bridge_mcast_stats       __percpu *mcast_stats;
 #if IS_ENABLED(CONFIG_IPV6)
        struct bridge_mcast_other_query ip6_other_query;
        struct bridge_mcast_own_query   ip6_own_query;
@@ -543,7 +552,7 @@ int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port,
                     struct sk_buff *skb, u16 vid);
 struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
                                        struct sk_buff *skb, u16 vid);
-void br_multicast_add_port(struct net_bridge_port *port);
+int br_multicast_add_port(struct net_bridge_port *port);
 void br_multicast_del_port(struct net_bridge_port *port);
 void br_multicast_enable_port(struct net_bridge_port *port);
 void br_multicast_disable_port(struct net_bridge_port *port);
@@ -576,6 +585,12 @@ void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port,
                   struct br_ip *group, int type, u8 flags);
 void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port,
                   int type);
+void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p,
+                       __be16 proto, u8 type, u8 dir);
+int br_multicast_init_stats(struct net_bridge *br);
+void br_multicast_get_stats(const struct net_bridge *br,
+                           const struct net_bridge_port *p,
+                           struct br_mcast_stats *dest);
 
 #define mlock_dereference(X, br) \
        rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock))
@@ -623,6 +638,11 @@ static inline bool br_multicast_querier_exists(struct net_bridge *br,
                return false;
        }
 }
+
+static inline int br_multicast_igmp_type(const struct sk_buff *skb)
+{
+       return BR_INPUT_SKB_CB(skb)->igmp;
+}
 #else
 static inline int br_multicast_rcv(struct net_bridge *br,
                                   struct net_bridge_port *port,
@@ -638,8 +658,9 @@ static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
        return NULL;
 }
 
-static inline void br_multicast_add_port(struct net_bridge_port *port)
+static inline int br_multicast_add_port(struct net_bridge_port *port)
 {
+       return 0;
 }
 
 static inline void br_multicast_del_port(struct net_bridge_port *port)
@@ -695,6 +716,22 @@ static inline void br_mdb_init(void)
 static inline void br_mdb_uninit(void)
 {
 }
+
+static inline void br_multicast_count(struct net_bridge *br,
+                                     const struct net_bridge_port *p,
+                                     __be16 proto, u8 type, u8 dir)
+{
+}
+
+static inline int br_multicast_init_stats(struct net_bridge *br)
+{
+       return 0;
+}
+
+static inline int br_multicast_igmp_type(const struct sk_buff *skb)
+{
+       return 0;
+}
 #endif
 
 /* br_vlan.c */