diff options
Diffstat (limited to 'include/linux/if_bridge.h')
| -rw-r--r-- | include/linux/if_bridge.h | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h new file mode 100644 index 000000000..d62ef428e --- /dev/null +++ b/include/linux/if_bridge.h @@ -0,0 +1,213 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Linux ethernet bridge + * + * Authors: + * Lennert Buytenhek <buytenh@gnu.org> + */ +#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 + } src; + union { + __be32 ip4; +#if IS_ENABLED(CONFIG_IPV6) + struct in6_addr ip6; +#endif + unsigned char mac_addr[ETH_ALEN]; + } dst; + __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_MRP_AWARE BIT(17) +#define BR_MRP_LOST_CONT BIT(18) +#define BR_MRP_LOST_IN_CONT BIT(19) +#define BR_TX_FWD_OFFLOAD BIT(20) +#define BR_PORT_LOCKED BIT(21) + +#define BR_DEFAULT_AGEING_TIME (300 * HZ) + +struct net_bridge; +void brioctl_set(int (*hook)(struct net *net, struct net_bridge *br, + unsigned int cmd, struct ifreq *ifr, + void __user *uarg)); +int br_ioctl_call(struct net *net, struct net_bridge *br, unsigned int cmd, + struct ifreq *ifr, void __user *uarg); + +#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_has_router_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_has_router_adjacent(struct net_device *dev, + int proto) +{ + return true; +} + +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); +int br_vlan_get_info_rcu(const struct net_device *dev, u16 vid, + struct bridge_vlan_info *p_vinfo); +bool br_mst_enabled(const struct net_device *dev); +int br_mst_get_info(const struct net_device *dev, u16 msti, unsigned long *vids); +int br_mst_get_state(const struct net_device *dev, u16 msti, u8 *state); +#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; +} + +static inline int br_vlan_get_info_rcu(const struct net_device *dev, u16 vid, + struct bridge_vlan_info *p_vinfo) +{ + return -EINVAL; +} + +static inline bool br_mst_enabled(const struct net_device *dev) +{ + return false; +} + +static inline int br_mst_get_info(const struct net_device *dev, u16 msti, + unsigned long *vids) +{ + return -EINVAL; +} +static inline int br_mst_get_state(const struct net_device *dev, u16 msti, + u8 *state) +{ + 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); +u8 br_port_get_stp_state(const struct net_device *dev); +clock_t br_get_ageing_time(const struct net_device *br_dev); +#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; +} + +static inline u8 br_port_get_stp_state(const struct net_device *dev) +{ + return BR_STATE_DISABLED; +} + +static inline clock_t br_get_ageing_time(const struct net_device *br_dev) +{ + return 0; +} +#endif + +#endif |