1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Linux ethernet bridge
8 #ifndef _LINUX_IF_BRIDGE_H
9 #define _LINUX_IF_BRIDGE_H
12 #include <linux/netdevice.h>
13 #include <uapi/linux/if_bridge.h>
14 #include <linux/bitops.h>
19 #if IS_ENABLED(CONFIG_IPV6)
25 #if IS_ENABLED(CONFIG_IPV6)
28 unsigned char mac_addr[ETH_ALEN];
35 struct list_head list;
39 #define BR_HAIRPIN_MODE BIT(0)
40 #define BR_BPDU_GUARD BIT(1)
41 #define BR_ROOT_BLOCK BIT(2)
42 #define BR_MULTICAST_FAST_LEAVE BIT(3)
43 #define BR_ADMIN_COST BIT(4)
44 #define BR_LEARNING BIT(5)
45 #define BR_FLOOD BIT(6)
46 #define BR_AUTO_MASK (BR_FLOOD | BR_LEARNING)
47 #define BR_PROMISC BIT(7)
48 #define BR_PROXYARP BIT(8)
49 #define BR_LEARNING_SYNC BIT(9)
50 #define BR_PROXYARP_WIFI BIT(10)
51 #define BR_MCAST_FLOOD BIT(11)
52 #define BR_MULTICAST_TO_UNICAST BIT(12)
53 #define BR_VLAN_TUNNEL BIT(13)
54 #define BR_BCAST_FLOOD BIT(14)
55 #define BR_NEIGH_SUPPRESS BIT(15)
56 #define BR_ISOLATED BIT(16)
57 #define BR_MRP_AWARE BIT(17)
58 #define BR_MRP_LOST_CONT BIT(18)
59 #define BR_MRP_LOST_IN_CONT BIT(19)
61 #define BR_DEFAULT_AGEING_TIME (300 * HZ)
63 extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __user *));
65 #if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING)
66 int br_multicast_list_adjacent(struct net_device *dev,
67 struct list_head *br_ip_list);
68 bool br_multicast_has_querier_anywhere(struct net_device *dev, int proto);
69 bool br_multicast_has_querier_adjacent(struct net_device *dev, int proto);
70 bool br_multicast_has_router_adjacent(struct net_device *dev, int proto);
71 bool br_multicast_enabled(const struct net_device *dev);
72 bool br_multicast_router(const struct net_device *dev);
73 int br_mdb_replay(struct net_device *br_dev, struct net_device *dev,
74 const void *ctx, bool adding, struct notifier_block *nb,
75 struct netlink_ext_ack *extack);
77 static inline int br_multicast_list_adjacent(struct net_device *dev,
78 struct list_head *br_ip_list)
82 static inline bool br_multicast_has_querier_anywhere(struct net_device *dev,
87 static inline bool br_multicast_has_querier_adjacent(struct net_device *dev,
93 static inline bool br_multicast_has_router_adjacent(struct net_device *dev,
99 static inline bool br_multicast_enabled(const struct net_device *dev)
103 static inline bool br_multicast_router(const struct net_device *dev)
107 static inline int br_mdb_replay(const struct net_device *br_dev,
108 const struct net_device *dev, const void *ctx,
109 bool adding, struct notifier_block *nb,
110 struct netlink_ext_ack *extack)
116 #if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_VLAN_FILTERING)
117 bool br_vlan_enabled(const struct net_device *dev);
118 int br_vlan_get_pvid(const struct net_device *dev, u16 *p_pvid);
119 int br_vlan_get_pvid_rcu(const struct net_device *dev, u16 *p_pvid);
120 int br_vlan_get_proto(const struct net_device *dev, u16 *p_proto);
121 int br_vlan_get_info(const struct net_device *dev, u16 vid,
122 struct bridge_vlan_info *p_vinfo);
123 int br_vlan_replay(struct net_device *br_dev, struct net_device *dev,
124 const void *ctx, bool adding, struct notifier_block *nb,
125 struct netlink_ext_ack *extack);
127 static inline bool br_vlan_enabled(const struct net_device *dev)
132 static inline int br_vlan_get_pvid(const struct net_device *dev, u16 *p_pvid)
137 static inline int br_vlan_get_proto(const struct net_device *dev, u16 *p_proto)
142 static inline int br_vlan_get_pvid_rcu(const struct net_device *dev, u16 *p_pvid)
147 static inline int br_vlan_get_info(const struct net_device *dev, u16 vid,
148 struct bridge_vlan_info *p_vinfo)
153 static inline int br_vlan_replay(struct net_device *br_dev,
154 struct net_device *dev, const void *ctx,
155 bool adding, struct notifier_block *nb,
156 struct netlink_ext_ack *extack)
162 #if IS_ENABLED(CONFIG_BRIDGE)
163 struct net_device *br_fdb_find_port(const struct net_device *br_dev,
164 const unsigned char *addr,
166 void br_fdb_clear_offload(const struct net_device *dev, u16 vid);
167 bool br_port_flag_is_set(const struct net_device *dev, unsigned long flag);
168 u8 br_port_get_stp_state(const struct net_device *dev);
169 clock_t br_get_ageing_time(const struct net_device *br_dev);
170 int br_fdb_replay(const struct net_device *br_dev, const struct net_device *dev,
171 const void *ctx, bool adding, struct notifier_block *nb);
173 static inline struct net_device *
174 br_fdb_find_port(const struct net_device *br_dev,
175 const unsigned char *addr,
181 static inline void br_fdb_clear_offload(const struct net_device *dev, u16 vid)
186 br_port_flag_is_set(const struct net_device *dev, unsigned long flag)
191 static inline u8 br_port_get_stp_state(const struct net_device *dev)
193 return BR_STATE_DISABLED;
196 static inline clock_t br_get_ageing_time(const struct net_device *br_dev)
201 static inline int br_fdb_replay(const struct net_device *br_dev,
202 const struct net_device *dev, const void *ctx,
203 bool adding, struct notifier_block *nb)