1 /* 2 * Linux ethernet bridge 3 * 4 * Authors: 5 * Lennert Buytenhek <[email protected]> 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * as published by the Free Software Foundation; either version 10 * 2 of the License, or (at your option) any later version. 11 */ 12 #ifndef _LINUX_IF_BRIDGE_H 13 #define _LINUX_IF_BRIDGE_H 14 15 16 #include <linux/netdevice.h> 17 #include <uapi/linux/if_bridge.h> 18 19 struct br_ip { 20 union { 21 __be32 ip4; 22 #if IS_ENABLED(CONFIG_IPV6) 23 struct in6_addr ip6; 24 #endif 25 } u; 26 __be16 proto; 27 __u16 vid; 28 }; 29 30 struct br_ip_list { 31 struct list_head list; 32 struct br_ip addr; 33 }; 34 35 extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __user *)); 36 37 typedef int br_should_route_hook_t(struct sk_buff *skb); 38 extern br_should_route_hook_t __rcu *br_should_route_hook; 39 40 #if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING) 41 int br_multicast_list_adjacent(struct net_device *dev, 42 struct list_head *br_ip_list); 43 bool br_multicast_has_querier_anywhere(struct net_device *dev, int proto); 44 bool br_multicast_has_querier_adjacent(struct net_device *dev, int proto); 45 #else 46 static inline int br_multicast_list_adjacent(struct net_device *dev, 47 struct list_head *br_ip_list) 48 { 49 return 0; 50 } 51 static inline bool br_multicast_has_querier_anywhere(struct net_device *dev, 52 int proto) 53 { 54 return false; 55 } 56 static inline bool br_multicast_has_querier_adjacent(struct net_device *dev, 57 int proto) 58 { 59 return false; 60 } 61 #endif 62 63 #endif 64