1/* 2 * Linux ethernet bridge 3 * 4 * Authors: 5 * Lennert Buytenhek <buytenh@gnu.org> 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#include <linux/bitops.h> 19 20struct br_ip { 21 union { 22 __be32 ip4; 23#if IS_ENABLED(CONFIG_IPV6) 24 struct in6_addr ip6; 25#endif 26 } u; 27 __be16 proto; 28 __u16 vid; 29}; 30 31struct br_ip_list { 32 struct list_head list; 33 struct br_ip addr; 34}; 35 36#define BR_HAIRPIN_MODE BIT(0) 37#define BR_BPDU_GUARD BIT(1) 38#define BR_ROOT_BLOCK BIT(2) 39#define BR_MULTICAST_FAST_LEAVE BIT(3) 40#define BR_ADMIN_COST BIT(4) 41#define BR_LEARNING BIT(5) 42#define BR_FLOOD BIT(6) 43#define BR_AUTO_MASK (BR_FLOOD | BR_LEARNING) 44#define BR_PROMISC BIT(7) 45#define BR_PROXYARP BIT(8) 46#define BR_LEARNING_SYNC BIT(9) 47#define BR_PROXYARP_WIFI BIT(10) 48 49#define BR_DEFAULT_AGEING_TIME (300 * HZ) 50 51extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __user *)); 52 53typedef int br_should_route_hook_t(struct sk_buff *skb); 54extern br_should_route_hook_t __rcu *br_should_route_hook; 55 56#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING) 57int br_multicast_list_adjacent(struct net_device *dev, 58 struct list_head *br_ip_list); 59bool br_multicast_has_querier_anywhere(struct net_device *dev, int proto); 60bool br_multicast_has_querier_adjacent(struct net_device *dev, int proto); 61#else 62static inline int br_multicast_list_adjacent(struct net_device *dev, 63 struct list_head *br_ip_list) 64{ 65 return 0; 66} 67static inline bool br_multicast_has_querier_anywhere(struct net_device *dev, 68 int proto) 69{ 70 return false; 71} 72static inline bool br_multicast_has_querier_adjacent(struct net_device *dev, 73 int proto) 74{ 75 return false; 76} 77#endif 78 79#endif 80