| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| /* |
| * Linux ethernet bridge |
| * |
| * Authors: |
| * Lennert Buytenhek <[email protected]> |
| */ |
| #ifndef _LINUX_IF_BRIDGE_H |
| #define _LINUX_IF_BRIDGE_H |
| |
| |
| #include <linux/netdevice.h> |
| #include <uapi/linux/if_bridge.h> |
| #include <linux/bitops.h> |
| |
| struct br_ip { |
| union { |
| __be32 ip4; |
| #if IS_ENABLED(CONFIG_IPV6) |
| struct in6_addr ip6; |
| #endif |
| } u; |
| __be16 proto; |
| __u16 vid; |
| }; |
| |
| struct br_ip_list { |
| struct list_head list; |
| struct br_ip addr; |
| }; |
| |
| #define BR_HAIRPIN_MODE BIT(0) |
| #define BR_BPDU_GUARD BIT(1) |
| #define BR_ROOT_BLOCK BIT(2) |
| #define BR_MULTICAST_FAST_LEAVE BIT(3) |
| #define BR_ADMIN_COST BIT(4) |
| #define BR_LEARNING BIT(5) |
| #define BR_FLOOD BIT(6) |
| #define BR_AUTO_MASK (BR_FLOOD | BR_LEARNING) |
| #define BR_PROMISC BIT(7) |
| #define BR_PROXYARP BIT(8) |
| #define BR_LEARNING_SYNC BIT(9) |
| #define BR_PROXYARP_WIFI BIT(10) |
| #define BR_MCAST_FLOOD BIT(11) |
| #define BR_MULTICAST_TO_UNICAST BIT(12) |
| #define BR_VLAN_TUNNEL BIT(13) |
| #define BR_BCAST_FLOOD BIT(14) |
| #define BR_NEIGH_SUPPRESS BIT(15) |
| #define BR_ISOLATED BIT(16) |
| |
| #define BR_DEFAULT_AGEING_TIME (300 * HZ) |
| |
| extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __user *)); |
| |
| #if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING) |
| int br_multicast_list_adjacent(struct net_device *dev, |
| struct list_head *br_ip_list); |
| bool br_multicast_has_querier_anywhere(struct net_device *dev, int proto); |
| bool br_multicast_has_querier_adjacent(struct net_device *dev, int proto); |
| bool br_multicast_enabled(const struct net_device *dev); |
| bool br_multicast_router(const struct net_device *dev); |
| #else |
| static inline int br_multicast_list_adjacent(struct net_device *dev, |
| struct list_head *br_ip_list) |
| { |
| return 0; |
| } |
| static inline bool br_multicast_has_querier_anywhere(struct net_device *dev, |
| int proto) |
| { |
| return false; |
| } |
| static inline bool br_multicast_has_querier_adjacent(struct net_device *dev, |
| int proto) |
| { |
| return false; |
| } |
| static inline bool br_multicast_enabled(const struct net_device *dev) |
| { |
| return false; |
| } |
| static inline bool br_multicast_router(const struct net_device *dev) |
| { |
| return false; |
| } |
| #endif |
| |
| #if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_VLAN_FILTERING) |
| bool br_vlan_enabled(const struct net_device *dev); |
| int br_vlan_get_pvid(const struct net_device *dev, u16 *p_pvid); |
| int br_vlan_get_pvid_rcu(const struct net_device *dev, u16 *p_pvid); |
| int br_vlan_get_proto(const struct net_device *dev, u16 *p_proto); |
| int br_vlan_get_info(const struct net_device *dev, u16 vid, |
| struct bridge_vlan_info *p_vinfo); |
| #else |
| static inline bool br_vlan_enabled(const struct net_device *dev) |
| { |
| return false; |
| } |
| |
| static inline int br_vlan_get_pvid(const struct net_device *dev, u16 *p_pvid) |
| { |
| return -EINVAL; |
| } |
| |
| static inline int br_vlan_get_proto(const struct net_device *dev, u16 *p_proto) |
| { |
| return -EINVAL; |
| } |
| |
| static inline int br_vlan_get_pvid_rcu(const struct net_device *dev, u16 *p_pvid) |
| { |
| return -EINVAL; |
| } |
| |
| static inline int br_vlan_get_info(const struct net_device *dev, u16 vid, |
| struct bridge_vlan_info *p_vinfo) |
| { |
| return -EINVAL; |
| } |
| #endif |
| |
| #if IS_ENABLED(CONFIG_BRIDGE) |
| struct net_device *br_fdb_find_port(const struct net_device *br_dev, |
| const unsigned char *addr, |
| __u16 vid); |
| void br_fdb_clear_offload(const struct net_device *dev, u16 vid); |
| bool br_port_flag_is_set(const struct net_device *dev, unsigned long flag); |
| #else |
| static inline struct net_device * |
| br_fdb_find_port(const struct net_device *br_dev, |
| const unsigned char *addr, |
| __u16 vid) |
| { |
| return NULL; |
| } |
| |
| static inline void br_fdb_clear_offload(const struct net_device *dev, u16 vid) |
| { |
| } |
| |
| static inline bool |
| br_port_flag_is_set(const struct net_device *dev, unsigned long flag) |
| { |
| return false; |
| } |
| #endif |
| |
| #endif |
