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)
60 #define BR_TX_FWD_OFFLOAD BIT(20)
61 #define BR_PORT_LOCKED BIT(21)
62 #define BR_PORT_MAB BIT(22)
64 #define BR_DEFAULT_AGEING_TIME (300 * HZ)
67 void brioctl_set(int (*hook)(struct net *net, struct net_bridge *br,
68 unsigned int cmd, struct ifreq *ifr,
70 int br_ioctl_call(struct net *net, struct net_bridge *br, unsigned int cmd,
71 struct ifreq *ifr, void __user *uarg);
73 #if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING)
74 int br_multicast_list_adjacent(struct net_device *dev,
75 struct list_head *br_ip_list);
76 bool br_multicast_has_querier_anywhere(struct net_device *dev, int proto);
77 bool br_multicast_has_querier_adjacent(struct net_device *dev, int proto);
78 bool br_multicast_has_router_adjacent(struct net_device *dev, int proto);
79 bool br_multicast_enabled(const struct net_device *dev);
80 bool br_multicast_router(const struct net_device *dev);
82 static inline int br_multicast_list_adjacent(struct net_device *dev,
83 struct list_head *br_ip_list)
87 static inline bool br_multicast_has_querier_anywhere(struct net_device *dev,
92 static inline bool br_multicast_has_querier_adjacent(struct net_device *dev,
98 static inline bool br_multicast_has_router_adjacent(struct net_device *dev,
104 static inline bool br_multicast_enabled(const struct net_device *dev)
108 static inline bool br_multicast_router(const struct net_device *dev)
114 #if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_VLAN_FILTERING)
115 bool br_vlan_enabled(const struct net_device *dev);
116 int br_vlan_get_pvid(const struct net_device *dev, u16 *p_pvid);
117 int br_vlan_get_pvid_rcu(const struct net_device *dev, u16 *p_pvid);
118 int br_vlan_get_proto(const struct net_device *dev, u16 *p_proto);
119 int br_vlan_get_info(const struct net_device *dev, u16 vid,
120 struct bridge_vlan_info *p_vinfo);
121 int br_vlan_get_info_rcu(const struct net_device *dev, u16 vid,
122 struct bridge_vlan_info *p_vinfo);
123 bool br_mst_enabled(const struct net_device *dev);
124 int br_mst_get_info(const struct net_device *dev, u16 msti, unsigned long *vids);
125 int br_mst_get_state(const struct net_device *dev, u16 msti, u8 *state);
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_get_info_rcu(const struct net_device *dev, u16 vid,
154 struct bridge_vlan_info *p_vinfo)
159 static inline bool br_mst_enabled(const struct net_device *dev)
164 static inline int br_mst_get_info(const struct net_device *dev, u16 msti,
169 static inline int br_mst_get_state(const struct net_device *dev, u16 msti,
176 #if IS_ENABLED(CONFIG_BRIDGE)
177 struct net_device *br_fdb_find_port(const struct net_device *br_dev,
178 const unsigned char *addr,
180 void br_fdb_clear_offload(const struct net_device *dev, u16 vid);
181 bool br_port_flag_is_set(const struct net_device *dev, unsigned long flag);
182 u8 br_port_get_stp_state(const struct net_device *dev);
183 clock_t br_get_ageing_time(const struct net_device *br_dev);
185 static inline struct net_device *
186 br_fdb_find_port(const struct net_device *br_dev,
187 const unsigned char *addr,
193 static inline void br_fdb_clear_offload(const struct net_device *dev, u16 vid)
198 br_port_flag_is_set(const struct net_device *dev, unsigned long flag)
203 static inline u8 br_port_get_stp_state(const struct net_device *dev)
205 return BR_STATE_DISABLED;
208 static inline clock_t br_get_ageing_time(const struct net_device *br_dev)