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)
62 #define BR_DEFAULT_AGEING_TIME (300 * HZ)
65 void brioctl_set(int (*hook)(struct net *net, struct net_bridge *br,
66 unsigned int cmd, struct ifreq *ifr,
68 int br_ioctl_call(struct net *net, struct net_bridge *br, unsigned int cmd,
69 struct ifreq *ifr, void __user *uarg);
71 #if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING)
72 int br_multicast_list_adjacent(struct net_device *dev,
73 struct list_head *br_ip_list);
74 bool br_multicast_has_querier_anywhere(struct net_device *dev, int proto);
75 bool br_multicast_has_querier_adjacent(struct net_device *dev, int proto);
76 bool br_multicast_has_router_adjacent(struct net_device *dev, int proto);
77 bool br_multicast_enabled(const struct net_device *dev);
78 bool br_multicast_router(const struct net_device *dev);
80 static inline int br_multicast_list_adjacent(struct net_device *dev,
81 struct list_head *br_ip_list)
85 static inline bool br_multicast_has_querier_anywhere(struct net_device *dev,
90 static inline bool br_multicast_has_querier_adjacent(struct net_device *dev,
96 static inline bool br_multicast_has_router_adjacent(struct net_device *dev,
102 static inline bool br_multicast_enabled(const struct net_device *dev)
106 static inline bool br_multicast_router(const struct net_device *dev)
112 #if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_VLAN_FILTERING)
113 bool br_vlan_enabled(const struct net_device *dev);
114 int br_vlan_get_pvid(const struct net_device *dev, u16 *p_pvid);
115 int br_vlan_get_pvid_rcu(const struct net_device *dev, u16 *p_pvid);
116 int br_vlan_get_proto(const struct net_device *dev, u16 *p_proto);
117 int br_vlan_get_info(const struct net_device *dev, u16 vid,
118 struct bridge_vlan_info *p_vinfo);
119 int br_vlan_get_info_rcu(const struct net_device *dev, u16 vid,
120 struct bridge_vlan_info *p_vinfo);
122 static inline bool br_vlan_enabled(const struct net_device *dev)
127 static inline int br_vlan_get_pvid(const struct net_device *dev, u16 *p_pvid)
132 static inline int br_vlan_get_proto(const struct net_device *dev, u16 *p_proto)
137 static inline int br_vlan_get_pvid_rcu(const struct net_device *dev, u16 *p_pvid)
142 static inline int br_vlan_get_info(const struct net_device *dev, u16 vid,
143 struct bridge_vlan_info *p_vinfo)
148 static inline int br_vlan_get_info_rcu(const struct net_device *dev, u16 vid,
149 struct bridge_vlan_info *p_vinfo)
155 #if IS_ENABLED(CONFIG_BRIDGE)
156 struct net_device *br_fdb_find_port(const struct net_device *br_dev,
157 const unsigned char *addr,
159 void br_fdb_clear_offload(const struct net_device *dev, u16 vid);
160 bool br_port_flag_is_set(const struct net_device *dev, unsigned long flag);
161 u8 br_port_get_stp_state(const struct net_device *dev);
162 clock_t br_get_ageing_time(const struct net_device *br_dev);
164 static inline struct net_device *
165 br_fdb_find_port(const struct net_device *br_dev,
166 const unsigned char *addr,
172 static inline void br_fdb_clear_offload(const struct net_device *dev, u16 vid)
177 br_port_flag_is_set(const struct net_device *dev, unsigned long flag)
182 static inline u8 br_port_get_stp_state(const struct net_device *dev)
184 return BR_STATE_DISABLED;
187 static inline clock_t br_get_ageing_time(const struct net_device *br_dev)