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
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
br_multicast_list_adjacent(struct net_device * dev,struct list_head * br_ip_list)46 static inline int br_multicast_list_adjacent(struct net_device *dev,
47 struct list_head *br_ip_list)
48 {
49 return 0;
50 }
br_multicast_has_querier_anywhere(struct net_device * dev,int proto)51 static inline bool br_multicast_has_querier_anywhere(struct net_device *dev,
52 int proto)
53 {
54 return false;
55 }
br_multicast_has_querier_adjacent(struct net_device * dev,int proto)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