--- zzzz-none-000/linux-4.4.271/include/linux/if_bridge.h	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/include/linux/if_bridge.h	2023-04-19 10:22:30.000000000 +0000
@@ -45,13 +45,32 @@
 #define BR_PROXYARP		BIT(8)
 #define BR_LEARNING_SYNC	BIT(9)
 #define BR_PROXYARP_WIFI	BIT(10)
+#define BR_MCAST_FLOOD		BIT(11)
+#define BR_MULTICAST_TO_UNICAST	BIT(12)
+#define BR_ISOLATE_MODE		BIT(13)
+#define BR_BCAST_FLOOD		BIT(14)
 
 #define BR_DEFAULT_AGEING_TIME	(300 * HZ)
 
+struct net_bridge_port;
+
 extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __user *));
+extern struct net_device *br_port_dev_get(struct net_device *dev,
+					  unsigned char *addr,
+					  struct sk_buff *skb,
+					  unsigned int cookie);
+extern void br_refresh_fdb_entry(struct net_device *dev, const char *addr);
+extern void br_dev_update_stats(struct net_device *dev,
+				struct rtnl_link_stats64 *nlstats);
+extern struct net_bridge_fdb_entry *br_fdb_has_entry(struct net_device *dev,
+						     const char *addr,
+						     __u16 vid);
+extern void br_fdb_update_register_notify(struct notifier_block *nb);
+extern void br_fdb_update_unregister_notify(struct notifier_block *nb);
 
 typedef int br_should_route_hook_t(struct sk_buff *skb);
 extern br_should_route_hook_t __rcu *br_should_route_hook;
+extern bool br_is_hairpin_enabled(struct net_device *dev);
 
 #if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING)
 int br_multicast_list_adjacent(struct net_device *dev,
@@ -76,4 +95,40 @@
 }
 #endif
 
+typedef struct net_bridge_port *br_port_dev_get_hook_t(struct net_device *dev,
+						       struct sk_buff *skb,
+						       unsigned char *addr,
+						       unsigned int cookie);
+extern br_port_dev_get_hook_t __rcu *br_port_dev_get_hook;
+
+typedef void (br_notify_hook_t)(int group, int event, const void *ptr);
+extern br_notify_hook_t __rcu *br_notify_hook;
+typedef int (br_multicast_handle_hook_t)(const struct net_bridge_port *src,
+		struct sk_buff *skb);
+extern br_multicast_handle_hook_t __rcu *br_multicast_handle_hook;
+
+#define BR_FDB_EVENT_ADD     0x01
+#define BR_FDB_EVENT_DEL     0x02
+struct br_fdb_event {
+	unsigned char addr[6];
+	unsigned char is_local;
+	struct net_device *dev;
+	struct net_bridge *br;
+	struct net_device *orig_dev;
+};
+extern void br_fdb_register_notify(struct notifier_block *nb);
+extern void br_fdb_unregister_notify(struct notifier_block *nb);
+extern struct net_device *br_fdb_bridge_dev_get_and_hold(struct net_bridge *br);
+extern int br_fdb_delete_by_netdev(struct net_device *dev,
+			const unsigned char *addr, u16 vid);
+extern int br_fdb_add_or_refresh_by_netdev(struct net_device *dev,
+			    const unsigned char *addr, u16 vid, u16 state);
+
+typedef struct net_bridge_port *br_get_dst_hook_t(
+		const struct net_bridge_port *src,
+		struct sk_buff **skb);
+extern br_get_dst_hook_t __rcu *br_get_dst_hook;
+
+typedef void (br_notify_hook_t)(int group, int event, const void *ptr);
+extern br_notify_hook_t __rcu *br_notify_hook;
 #endif