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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 | ||
20 | struct 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 | ||
31 | struct 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 | #define BR_MCAST_FLOOD BIT(11) | |
49 | ||
50 | #define BR_DEFAULT_AGEING_TIME (300 * HZ) | |
51 | ||
52 | extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __user *)); | |
53 | ||
54 | typedef int br_should_route_hook_t(struct sk_buff *skb); | |
55 | extern br_should_route_hook_t __rcu *br_should_route_hook; | |
56 | ||
57 | #if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING) | |
58 | int br_multicast_list_adjacent(struct net_device *dev, | |
59 | struct list_head *br_ip_list); | |
60 | bool br_multicast_has_querier_anywhere(struct net_device *dev, int proto); | |
61 | bool br_multicast_has_querier_adjacent(struct net_device *dev, int proto); | |
62 | #else | |
63 | static inline int br_multicast_list_adjacent(struct net_device *dev, | |
64 | struct list_head *br_ip_list) | |
65 | { | |
66 | return 0; | |
67 | } | |
68 | static inline bool br_multicast_has_querier_anywhere(struct net_device *dev, | |
69 | int proto) | |
70 | { | |
71 | return false; | |
72 | } | |
73 | static inline bool br_multicast_has_querier_adjacent(struct net_device *dev, | |
74 | int proto) | |
75 | { | |
76 | return false; | |
77 | } | |
78 | #endif | |
79 | ||
80 | #endif |