Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
os
linux
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#define BR_MCAST_FLOOD BIT(11)
49#define BR_MULTICAST_TO_UNICAST BIT(12)
50#define BR_VLAN_TUNNEL BIT(13)
51#define BR_BCAST_FLOOD BIT(14)
52#define BR_NEIGH_SUPPRESS BIT(15)
53
54#define BR_DEFAULT_AGEING_TIME (300 * HZ)
55
56extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __user *));
57
58typedef int br_should_route_hook_t(struct sk_buff *skb);
59extern br_should_route_hook_t __rcu *br_should_route_hook;
60
61#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING)
62int br_multicast_list_adjacent(struct net_device *dev,
63 struct list_head *br_ip_list);
64bool br_multicast_has_querier_anywhere(struct net_device *dev, int proto);
65bool br_multicast_has_querier_adjacent(struct net_device *dev, int proto);
66bool br_multicast_enabled(const struct net_device *dev);
67bool br_multicast_router(const struct net_device *dev);
68#else
69static inline int br_multicast_list_adjacent(struct net_device *dev,
70 struct list_head *br_ip_list)
71{
72 return 0;
73}
74static inline bool br_multicast_has_querier_anywhere(struct net_device *dev,
75 int proto)
76{
77 return false;
78}
79static inline bool br_multicast_has_querier_adjacent(struct net_device *dev,
80 int proto)
81{
82 return false;
83}
84static inline bool br_multicast_enabled(const struct net_device *dev)
85{
86 return false;
87}
88static inline bool br_multicast_router(const struct net_device *dev)
89{
90 return false;
91}
92#endif
93
94#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_VLAN_FILTERING)
95bool br_vlan_enabled(const struct net_device *dev);
96#else
97static inline bool br_vlan_enabled(const struct net_device *dev)
98{
99 return false;
100}
101#endif
102
103#endif