11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * Linux ethernet bridge 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Authors: 51da177e4SLinus Torvalds * Lennert Buytenhek <buytenh@gnu.org> 61da177e4SLinus Torvalds * 71da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or 81da177e4SLinus Torvalds * modify it under the terms of the GNU General Public License 91da177e4SLinus Torvalds * as published by the Free Software Foundation; either version 101da177e4SLinus Torvalds * 2 of the License, or (at your option) any later version. 111da177e4SLinus Torvalds */ 121da177e4SLinus Torvalds 131da177e4SLinus Torvalds #ifndef _BR_PRIVATE_H 141da177e4SLinus Torvalds #define _BR_PRIVATE_H 151da177e4SLinus Torvalds 161da177e4SLinus Torvalds #include <linux/netdevice.h> 171da177e4SLinus Torvalds #include <linux/if_bridge.h> 1891d2c34aSHerbert Xu #include <linux/netpoll.h> 19406818ffSEric Dumazet #include <linux/u64_stats_sync.h> 204adf0af6SSimon Wunderlich #include <net/route.h> 21243a2e63SVlad Yasevich #include <linux/if_vlan.h> 221da177e4SLinus Torvalds 231da177e4SLinus Torvalds #define BR_HASH_BITS 8 241da177e4SLinus Torvalds #define BR_HASH_SIZE (1 << BR_HASH_BITS) 251da177e4SLinus Torvalds 261da177e4SLinus Torvalds #define BR_HOLD_TIME (1*HZ) 271da177e4SLinus Torvalds 281da177e4SLinus Torvalds #define BR_PORT_BITS 10 291da177e4SLinus Torvalds #define BR_MAX_PORTS (1<<BR_PORT_BITS) 30243a2e63SVlad Yasevich #define BR_VLAN_BITMAP_LEN BITS_TO_LONGS(VLAN_N_VID) 311da177e4SLinus Torvalds 329cde0708SStephen Hemminger #define BR_VERSION "2.3" 339cde0708SStephen Hemminger 34515853ccSstephen hemminger /* Control of forwarding link local multicast */ 35515853ccSstephen hemminger #define BR_GROUPFWD_DEFAULT 0 36515853ccSstephen hemminger /* Don't allow forwarding control protocols like STP and LLDP */ 37515853ccSstephen hemminger #define BR_GROUPFWD_RESTRICTED 0x4007u 38515853ccSstephen hemminger 399cde0708SStephen Hemminger /* Path to usermode spanning tree program */ 409cde0708SStephen Hemminger #define BR_STP_PROG "/sbin/bridge-stp" 418cbb512eSStephen Hemminger 421da177e4SLinus Torvalds typedef struct bridge_id bridge_id; 431da177e4SLinus Torvalds typedef struct mac_addr mac_addr; 441da177e4SLinus Torvalds typedef __u16 port_id; 451da177e4SLinus Torvalds 461da177e4SLinus Torvalds struct bridge_id 471da177e4SLinus Torvalds { 481da177e4SLinus Torvalds unsigned char prio[2]; 491da177e4SLinus Torvalds unsigned char addr[6]; 501da177e4SLinus Torvalds }; 511da177e4SLinus Torvalds 521da177e4SLinus Torvalds struct mac_addr 531da177e4SLinus Torvalds { 541da177e4SLinus Torvalds unsigned char addr[6]; 551da177e4SLinus Torvalds }; 561da177e4SLinus Torvalds 578ef2a9a5SYOSHIFUJI Hideaki struct br_ip 588ef2a9a5SYOSHIFUJI Hideaki { 598ef2a9a5SYOSHIFUJI Hideaki union { 608ef2a9a5SYOSHIFUJI Hideaki __be32 ip4; 61dfd56b8bSEric Dumazet #if IS_ENABLED(CONFIG_IPV6) 6208b202b6SYOSHIFUJI Hideaki struct in6_addr ip6; 6308b202b6SYOSHIFUJI Hideaki #endif 648ef2a9a5SYOSHIFUJI Hideaki } u; 658ef2a9a5SYOSHIFUJI Hideaki __be16 proto; 66b0e9a30dSVlad Yasevich __u16 vid; 678ef2a9a5SYOSHIFUJI Hideaki }; 688ef2a9a5SYOSHIFUJI Hideaki 69243a2e63SVlad Yasevich struct net_port_vlans { 70243a2e63SVlad Yasevich u16 port_idx; 7178851988SVlad Yasevich u16 pvid; 72243a2e63SVlad Yasevich union { 73243a2e63SVlad Yasevich struct net_bridge_port *port; 74243a2e63SVlad Yasevich struct net_bridge *br; 75243a2e63SVlad Yasevich } parent; 76243a2e63SVlad Yasevich struct rcu_head rcu; 77243a2e63SVlad Yasevich unsigned long vlan_bitmap[BR_VLAN_BITMAP_LEN]; 7835e03f3aSVlad Yasevich unsigned long untagged_bitmap[BR_VLAN_BITMAP_LEN]; 796cbdceebSVlad Yasevich u16 num_vlans; 80243a2e63SVlad Yasevich }; 81243a2e63SVlad Yasevich 821da177e4SLinus Torvalds struct net_bridge_fdb_entry 831da177e4SLinus Torvalds { 841da177e4SLinus Torvalds struct hlist_node hlist; 851da177e4SLinus Torvalds struct net_bridge_port *dst; 861da177e4SLinus Torvalds 871da177e4SLinus Torvalds struct rcu_head rcu; 887cd8861aSstephen hemminger unsigned long updated; 897cd8861aSstephen hemminger unsigned long used; 901da177e4SLinus Torvalds mac_addr addr; 911da177e4SLinus Torvalds unsigned char is_local; 921da177e4SLinus Torvalds unsigned char is_static; 932ba071ecSVlad Yasevich __u16 vlan_id; 941da177e4SLinus Torvalds }; 951da177e4SLinus Torvalds 96eb1d1641SHerbert Xu struct net_bridge_port_group { 97eb1d1641SHerbert Xu struct net_bridge_port *port; 98e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 99eb1d1641SHerbert Xu struct hlist_node mglist; 100eb1d1641SHerbert Xu struct rcu_head rcu; 101eb1d1641SHerbert Xu struct timer_list timer; 1028ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 103ccb1c31aSAmerigo Wang unsigned char state; 104eb1d1641SHerbert Xu }; 105eb1d1641SHerbert Xu 106eb1d1641SHerbert Xu struct net_bridge_mdb_entry 107eb1d1641SHerbert Xu { 108eb1d1641SHerbert Xu struct hlist_node hlist[2]; 109eb1d1641SHerbert Xu struct net_bridge *br; 110e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 111eb1d1641SHerbert Xu struct rcu_head rcu; 112eb1d1641SHerbert Xu struct timer_list timer; 1138ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 1148a870178SHerbert Xu bool mglist; 1159f00b2e7SCong Wang bool timer_armed; 116eb1d1641SHerbert Xu }; 117eb1d1641SHerbert Xu 118eb1d1641SHerbert Xu struct net_bridge_mdb_htable 119eb1d1641SHerbert Xu { 120eb1d1641SHerbert Xu struct hlist_head *mhash; 121eb1d1641SHerbert Xu struct rcu_head rcu; 122eb1d1641SHerbert Xu struct net_bridge_mdb_htable *old; 123eb1d1641SHerbert Xu u32 size; 124eb1d1641SHerbert Xu u32 max; 125eb1d1641SHerbert Xu u32 secret; 126eb1d1641SHerbert Xu u32 ver; 127eb1d1641SHerbert Xu }; 128eb1d1641SHerbert Xu 1291da177e4SLinus Torvalds struct net_bridge_port 1301da177e4SLinus Torvalds { 1311da177e4SLinus Torvalds struct net_bridge *br; 1321da177e4SLinus Torvalds struct net_device *dev; 1331da177e4SLinus Torvalds struct list_head list; 1341da177e4SLinus Torvalds 1351da177e4SLinus Torvalds /* STP */ 1361da177e4SLinus Torvalds u8 priority; 1371da177e4SLinus Torvalds u8 state; 1381da177e4SLinus Torvalds u16 port_no; 1391da177e4SLinus Torvalds unsigned char topology_change_ack; 1401da177e4SLinus Torvalds unsigned char config_pending; 1411da177e4SLinus Torvalds port_id port_id; 1421da177e4SLinus Torvalds port_id designated_port; 1431da177e4SLinus Torvalds bridge_id designated_root; 1441da177e4SLinus Torvalds bridge_id designated_bridge; 1451da177e4SLinus Torvalds u32 path_cost; 1461da177e4SLinus Torvalds u32 designated_cost; 1470c03150eSstephen hemminger unsigned long designated_age; 1481da177e4SLinus Torvalds 1491da177e4SLinus Torvalds struct timer_list forward_delay_timer; 1501da177e4SLinus Torvalds struct timer_list hold_timer; 1511da177e4SLinus Torvalds struct timer_list message_age_timer; 1521da177e4SLinus Torvalds struct kobject kobj; 1531da177e4SLinus Torvalds struct rcu_head rcu; 1543982d3d2SFischer, Anna 1553982d3d2SFischer, Anna unsigned long flags; 1563982d3d2SFischer, Anna #define BR_HAIRPIN_MODE 0x00000001 157a2e01a65Sstephen hemminger #define BR_BPDU_GUARD 0x00000002 1581007dd1aSstephen hemminger #define BR_ROOT_BLOCK 0x00000004 159c2d3babfSDavid S. Miller #define BR_MULTICAST_FAST_LEAVE 0x00000008 1608f3359bdSstephen hemminger #define BR_ADMIN_COST 0x00000010 161eb1d1641SHerbert Xu 162eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 163eb1d1641SHerbert Xu u32 multicast_startup_queries_sent; 164eb1d1641SHerbert Xu unsigned char multicast_router; 165eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 166eb1d1641SHerbert Xu struct timer_list multicast_query_timer; 167eb1d1641SHerbert Xu struct hlist_head mglist; 168eb1d1641SHerbert Xu struct hlist_node rlist; 169eb1d1641SHerbert Xu #endif 170e0f43752SSimon Arlott 171e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 172e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 173e0f43752SSimon Arlott #endif 17491d2c34aSHerbert Xu 17591d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 17691d2c34aSHerbert Xu struct netpoll *np; 17791d2c34aSHerbert Xu #endif 178243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 179243a2e63SVlad Yasevich struct net_port_vlans __rcu *vlan_info; 180243a2e63SVlad Yasevich #endif 1811da177e4SLinus Torvalds }; 1821da177e4SLinus Torvalds 183f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 184f350a0a8SJiri Pirko 185b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 186b5ed54e9Sstephen hemminger { 1872469ffd7SJohn Fastabend struct net_bridge_port *port = 1882469ffd7SJohn Fastabend rcu_dereference_rtnl(dev->rx_handler_data); 1892469ffd7SJohn Fastabend 190b5ed54e9Sstephen hemminger return br_port_exists(dev) ? port : NULL; 191b5ed54e9Sstephen hemminger } 192b5ed54e9Sstephen hemminger 193ec1e5610SEric Dumazet static inline struct net_bridge_port *br_port_get_rtnl(struct net_device *dev) 194b5ed54e9Sstephen hemminger { 195ec1e5610SEric Dumazet return br_port_exists(dev) ? 196ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 197b5ed54e9Sstephen hemminger } 198b5ed54e9Sstephen hemminger 1990eae88f3SEric Dumazet struct br_cpu_netstats { 200406818ffSEric Dumazet u64 rx_packets; 201406818ffSEric Dumazet u64 rx_bytes; 202406818ffSEric Dumazet u64 tx_packets; 203406818ffSEric Dumazet u64 tx_bytes; 204406818ffSEric Dumazet struct u64_stats_sync syncp; 2050eae88f3SEric Dumazet }; 2060eae88f3SEric Dumazet 2071da177e4SLinus Torvalds struct net_bridge 2081da177e4SLinus Torvalds { 2091da177e4SLinus Torvalds spinlock_t lock; 2101da177e4SLinus Torvalds struct list_head port_list; 2111da177e4SLinus Torvalds struct net_device *dev; 21214bb4789Sstephen hemminger 2130eae88f3SEric Dumazet struct br_cpu_netstats __percpu *stats; 2141da177e4SLinus Torvalds spinlock_t hash_lock; 2151da177e4SLinus Torvalds struct hlist_head hash[BR_HASH_SIZE]; 2164adf0af6SSimon Wunderlich #ifdef CONFIG_BRIDGE_NETFILTER 2174adf0af6SSimon Wunderlich struct rtable fake_rtable; 2184df53d8bSPatrick McHardy bool nf_call_iptables; 2194df53d8bSPatrick McHardy bool nf_call_ip6tables; 2204df53d8bSPatrick McHardy bool nf_call_arptables; 2214adf0af6SSimon Wunderlich #endif 222515853ccSstephen hemminger u16 group_fwd_mask; 223515853ccSstephen hemminger 2241da177e4SLinus Torvalds /* STP */ 2251da177e4SLinus Torvalds bridge_id designated_root; 2261da177e4SLinus Torvalds bridge_id bridge_id; 2271da177e4SLinus Torvalds u32 root_path_cost; 2281da177e4SLinus Torvalds unsigned long max_age; 2291da177e4SLinus Torvalds unsigned long hello_time; 2301da177e4SLinus Torvalds unsigned long forward_delay; 2311da177e4SLinus Torvalds unsigned long bridge_max_age; 2321da177e4SLinus Torvalds unsigned long ageing_time; 2331da177e4SLinus Torvalds unsigned long bridge_hello_time; 2341da177e4SLinus Torvalds unsigned long bridge_forward_delay; 2351da177e4SLinus Torvalds 236fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 2371da177e4SLinus Torvalds u16 root_port; 2389cde0708SStephen Hemminger 2399cde0708SStephen Hemminger enum { 2409cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 2419cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 2429cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 2439cde0708SStephen Hemminger } stp_enabled; 2449cde0708SStephen Hemminger 2451da177e4SLinus Torvalds unsigned char topology_change; 2461da177e4SLinus Torvalds unsigned char topology_change_detected; 2471da177e4SLinus Torvalds 248eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 249eb1d1641SHerbert Xu unsigned char multicast_router; 250eb1d1641SHerbert Xu 251eb1d1641SHerbert Xu u8 multicast_disabled:1; 252c5c23260SHerbert Xu u8 multicast_querier:1; 2531c8ad5bfSCong Wang u8 multicast_query_use_ifaddr:1; 254eb1d1641SHerbert Xu 255eb1d1641SHerbert Xu u32 hash_elasticity; 256eb1d1641SHerbert Xu u32 hash_max; 257eb1d1641SHerbert Xu 258eb1d1641SHerbert Xu u32 multicast_last_member_count; 259eb1d1641SHerbert Xu u32 multicast_startup_queries_sent; 260eb1d1641SHerbert Xu u32 multicast_startup_query_count; 261eb1d1641SHerbert Xu 262eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 263eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 264eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 265eb1d1641SHerbert Xu unsigned long multicast_query_interval; 266eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 267eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 268eb1d1641SHerbert Xu 269eb1d1641SHerbert Xu spinlock_t multicast_lock; 270e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 271eb1d1641SHerbert Xu struct hlist_head router_list; 272eb1d1641SHerbert Xu 273eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 274eb1d1641SHerbert Xu struct timer_list multicast_querier_timer; 275eb1d1641SHerbert Xu struct timer_list multicast_query_timer; 276eb1d1641SHerbert Xu #endif 277eb1d1641SHerbert Xu 2781da177e4SLinus Torvalds struct timer_list hello_timer; 2791da177e4SLinus Torvalds struct timer_list tcn_timer; 2801da177e4SLinus Torvalds struct timer_list topology_change_timer; 2811da177e4SLinus Torvalds struct timer_list gc_timer; 28243b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 283243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 284243a2e63SVlad Yasevich u8 vlan_enabled; 285243a2e63SVlad Yasevich struct net_port_vlans __rcu *vlan_info; 286243a2e63SVlad Yasevich #endif 2871da177e4SLinus Torvalds }; 2881da177e4SLinus Torvalds 28968b7c895SHerbert Xu struct br_input_skb_cb { 29068b7c895SHerbert Xu struct net_device *brdev; 29132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 292eb1d1641SHerbert Xu int igmp; 293eb1d1641SHerbert Xu int mrouters_only; 29432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 29568b7c895SHerbert Xu }; 29668b7c895SHerbert Xu 29768b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 29868b7c895SHerbert Xu 29932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 30032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 30132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 30232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 30332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 30432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 30528a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 30628a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 30728a16c97Sstephen hemminger 30828a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 30928a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 31028a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 31128a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 31228a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 31328a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 31428a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 31528a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 31628a16c97Sstephen hemminger 31728a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 31828a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 31928a16c97Sstephen hemminger 3201da177e4SLinus Torvalds extern struct notifier_block br_device_notifier; 3211da177e4SLinus Torvalds 3221da177e4SLinus Torvalds /* called under bridge lock */ 3231da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 3241da177e4SLinus Torvalds { 3251da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 3261da177e4SLinus Torvalds } 3271da177e4SLinus Torvalds 3281da177e4SLinus Torvalds /* br_device.c */ 3291da177e4SLinus Torvalds extern void br_dev_setup(struct net_device *dev); 3301ce5cce8Sstephen hemminger extern void br_dev_delete(struct net_device *dev, struct list_head *list); 3316fef4c0cSStephen Hemminger extern netdev_tx_t br_dev_xmit(struct sk_buff *skb, 3326fef4c0cSStephen Hemminger struct net_device *dev); 333cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 33491d2c34aSHerbert Xu static inline struct netpoll_info *br_netpoll_info(struct net_bridge *br) 33591d2c34aSHerbert Xu { 33691d2c34aSHerbert Xu return br->dev->npinfo; 33791d2c34aSHerbert Xu } 338cfb478daSstephen hemminger 33991d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 34091d2c34aSHerbert Xu struct sk_buff *skb) 34191d2c34aSHerbert Xu { 34291d2c34aSHerbert Xu struct netpoll *np = p->np; 34391d2c34aSHerbert Xu 34491d2c34aSHerbert Xu if (np) 34591d2c34aSHerbert Xu netpoll_send_skb(np, skb); 34691d2c34aSHerbert Xu } 34791d2c34aSHerbert Xu 34847be03a2SAmerigo Wang extern int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp); 34991d2c34aSHerbert Xu extern void br_netpoll_disable(struct net_bridge_port *p); 35091d2c34aSHerbert Xu #else 35191d2c34aSHerbert Xu static inline struct netpoll_info *br_netpoll_info(struct net_bridge *br) 35291d2c34aSHerbert Xu { 35391d2c34aSHerbert Xu return NULL; 35491d2c34aSHerbert Xu } 35591d2c34aSHerbert Xu 3569f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 35791d2c34aSHerbert Xu struct sk_buff *skb) 35891d2c34aSHerbert Xu { 35991d2c34aSHerbert Xu } 36091d2c34aSHerbert Xu 36147be03a2SAmerigo Wang static inline int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp) 36291d2c34aSHerbert Xu { 36391d2c34aSHerbert Xu return 0; 36491d2c34aSHerbert Xu } 36591d2c34aSHerbert Xu 36691d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 36791d2c34aSHerbert Xu { 36891d2c34aSHerbert Xu } 369cfb478daSstephen hemminger #endif 3701da177e4SLinus Torvalds 3711da177e4SLinus Torvalds /* br_fdb.c */ 37287a596e0SAkinobu Mita extern int br_fdb_init(void); 3731da177e4SLinus Torvalds extern void br_fdb_fini(void); 3749cf63747SStephen Hemminger extern void br_fdb_flush(struct net_bridge *br); 3751da177e4SLinus Torvalds extern void br_fdb_changeaddr(struct net_bridge_port *p, 3761da177e4SLinus Torvalds const unsigned char *newaddr); 37743598813Sstephen hemminger extern void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 3781da177e4SLinus Torvalds extern void br_fdb_cleanup(unsigned long arg); 3791da177e4SLinus Torvalds extern void br_fdb_delete_by_port(struct net_bridge *br, 3801a620698SStephen Hemminger const struct net_bridge_port *p, int do_all); 3811da177e4SLinus Torvalds extern struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, 3822ba071ecSVlad Yasevich const unsigned char *addr, 3832ba071ecSVlad Yasevich __u16 vid); 384da678292SMichał Mirosław extern int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 3851da177e4SLinus Torvalds extern int br_fdb_fillbuf(struct net_bridge *br, void *buf, 3861da177e4SLinus Torvalds unsigned long count, unsigned long off); 3871da177e4SLinus Torvalds extern int br_fdb_insert(struct net_bridge *br, 3881da177e4SLinus Torvalds struct net_bridge_port *source, 389bc9a25d2SVlad Yasevich const unsigned char *addr, 390bc9a25d2SVlad Yasevich u16 vid); 3911da177e4SLinus Torvalds extern void br_fdb_update(struct net_bridge *br, 3921da177e4SLinus Torvalds struct net_bridge_port *source, 3932ba071ecSVlad Yasevich const unsigned char *addr, 3942ba071ecSVlad Yasevich u16 vid); 395bc9a25d2SVlad Yasevich extern int fdb_delete_by_addr(struct net_bridge *br, const u8 *addr, u16 vid); 39677162022SJohn Fastabend 3971690be63SVlad Yasevich extern int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 39877162022SJohn Fastabend struct net_device *dev, 3996b6e2725Sstephen hemminger const unsigned char *addr); 400edc7d573Sstephen hemminger extern int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], 40177162022SJohn Fastabend struct net_device *dev, 4026b6e2725Sstephen hemminger const unsigned char *addr, 40377162022SJohn Fastabend u16 nlh_flags); 40477162022SJohn Fastabend extern int br_fdb_dump(struct sk_buff *skb, 40577162022SJohn Fastabend struct netlink_callback *cb, 40677162022SJohn Fastabend struct net_device *dev, 40777162022SJohn Fastabend int idx); 4081da177e4SLinus Torvalds 4091da177e4SLinus Torvalds /* br_forward.c */ 4101da177e4SLinus Torvalds extern void br_deliver(const struct net_bridge_port *to, 4111da177e4SLinus Torvalds struct sk_buff *skb); 4121da177e4SLinus Torvalds extern int br_dev_queue_push_xmit(struct sk_buff *skb); 4131da177e4SLinus Torvalds extern void br_forward(const struct net_bridge_port *to, 4147f7708f0SMichael Braun struct sk_buff *skb, struct sk_buff *skb0); 4151da177e4SLinus Torvalds extern int br_forward_finish(struct sk_buff *skb); 416e081e1e3SHerbert Xu extern void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb); 417b33084beSHerbert Xu extern void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, 418b33084beSHerbert Xu struct sk_buff *skb2); 4191da177e4SLinus Torvalds 4201da177e4SLinus Torvalds /* br_if.c */ 421269def7cSStephen Hemminger extern void br_port_carrier_check(struct net_bridge_port *p); 4224aa678baSAlexey Dobriyan extern int br_add_bridge(struct net *net, const char *name); 4234aa678baSAlexey Dobriyan extern int br_del_bridge(struct net *net, const char *name); 424712d6954SAlexey Dobriyan extern void br_net_exit(struct net *net); 4251da177e4SLinus Torvalds extern int br_add_if(struct net_bridge *br, 4261da177e4SLinus Torvalds struct net_device *dev); 4271da177e4SLinus Torvalds extern int br_del_if(struct net_bridge *br, 4281da177e4SLinus Torvalds struct net_device *dev); 4291da177e4SLinus Torvalds extern int br_min_mtu(const struct net_bridge *br); 430c8f44affSMichał Mirosław extern netdev_features_t br_features_recompute(struct net_bridge *br, 431c8f44affSMichał Mirosław netdev_features_t features); 4321da177e4SLinus Torvalds 4331da177e4SLinus Torvalds /* br_input.c */ 4341da177e4SLinus Torvalds extern int br_handle_frame_finish(struct sk_buff *skb); 4358a4eb573SJiri Pirko extern rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 4361da177e4SLinus Torvalds 4371da177e4SLinus Torvalds /* br_ioctl.c */ 4381da177e4SLinus Torvalds extern int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 439881d966bSEric W. Biederman extern int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __user *arg); 4401da177e4SLinus Torvalds 441eb1d1641SHerbert Xu /* br_multicast.c */ 442eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 4432ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 444eb1d1641SHerbert Xu extern int br_multicast_rcv(struct net_bridge *br, 445eb1d1641SHerbert Xu struct net_bridge_port *port, 446eb1d1641SHerbert Xu struct sk_buff *skb); 447eb1d1641SHerbert Xu extern struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 448fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 449eb1d1641SHerbert Xu extern void br_multicast_add_port(struct net_bridge_port *port); 450eb1d1641SHerbert Xu extern void br_multicast_del_port(struct net_bridge_port *port); 451eb1d1641SHerbert Xu extern void br_multicast_enable_port(struct net_bridge_port *port); 452eb1d1641SHerbert Xu extern void br_multicast_disable_port(struct net_bridge_port *port); 453eb1d1641SHerbert Xu extern void br_multicast_init(struct net_bridge *br); 454eb1d1641SHerbert Xu extern void br_multicast_open(struct net_bridge *br); 455eb1d1641SHerbert Xu extern void br_multicast_stop(struct net_bridge *br); 4565cb5e947SHerbert Xu extern void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 4575cb5e947SHerbert Xu struct sk_buff *skb); 4585cb5e947SHerbert Xu extern void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 4595cb5e947SHerbert Xu struct sk_buff *skb, struct sk_buff *skb2); 4600909e117SHerbert Xu extern int br_multicast_set_router(struct net_bridge *br, unsigned long val); 4610909e117SHerbert Xu extern int br_multicast_set_port_router(struct net_bridge_port *p, 4620909e117SHerbert Xu unsigned long val); 463561f1103SHerbert Xu extern int br_multicast_toggle(struct net_bridge *br, unsigned long val); 464c5c23260SHerbert Xu extern int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 465b195167fSHerbert Xu extern int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 466cfd56754SCong Wang extern struct net_bridge_mdb_entry *br_mdb_ip_get( 467cfd56754SCong Wang struct net_bridge_mdb_htable *mdb, 468cfd56754SCong Wang struct br_ip *dst); 469cfd56754SCong Wang extern struct net_bridge_mdb_entry *br_multicast_new_group(struct net_bridge *br, 470cfd56754SCong Wang struct net_bridge_port *port, struct br_ip *group); 471cfd56754SCong Wang extern void br_multicast_free_pg(struct rcu_head *head); 472cfd56754SCong Wang extern struct net_bridge_port_group *br_multicast_new_port_group( 473cfd56754SCong Wang struct net_bridge_port *port, 474cfd56754SCong Wang struct br_ip *group, 475ccb1c31aSAmerigo Wang struct net_bridge_port_group *next, 476ccb1c31aSAmerigo Wang unsigned char state); 477ee07c6e7SCong Wang extern void br_mdb_init(void); 47863233159SVlad Yasevich extern void br_mdb_uninit(void); 47937a393bcSCong Wang extern void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 48037a393bcSCong Wang struct br_ip *group, int type); 48185b35269SSridhar Samudrala 482cfd56754SCong Wang #define mlock_dereference(X, br) \ 483cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 484cfd56754SCong Wang 485cfd56754SCong Wang #if IS_ENABLED(CONFIG_IPV6) 486cfd56754SCong Wang #include <net/addrconf.h> 487cfd56754SCong Wang static inline int ipv6_is_transient_multicast(const struct in6_addr *addr) 488cfd56754SCong Wang { 489cfd56754SCong Wang if (ipv6_addr_is_multicast(addr) && IPV6_ADDR_MC_FLAG_TRANSIENT(addr)) 490cfd56754SCong Wang return 1; 491cfd56754SCong Wang return 0; 492cfd56754SCong Wang } 493cfd56754SCong Wang #endif 494cfd56754SCong Wang 49585b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 49685b35269SSridhar Samudrala { 49785b35269SSridhar Samudrala return br->multicast_router == 2 || 49885b35269SSridhar Samudrala (br->multicast_router == 1 && 49985b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 50085b35269SSridhar Samudrala } 501eb1d1641SHerbert Xu #else 502eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 503eb1d1641SHerbert Xu struct net_bridge_port *port, 504eb1d1641SHerbert Xu struct sk_buff *skb) 505eb1d1641SHerbert Xu { 506eb1d1641SHerbert Xu return 0; 507eb1d1641SHerbert Xu } 508eb1d1641SHerbert Xu 509eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 510fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 511eb1d1641SHerbert Xu { 512eb1d1641SHerbert Xu return NULL; 513eb1d1641SHerbert Xu } 514eb1d1641SHerbert Xu 515eb1d1641SHerbert Xu static inline void br_multicast_add_port(struct net_bridge_port *port) 516eb1d1641SHerbert Xu { 517eb1d1641SHerbert Xu } 518eb1d1641SHerbert Xu 519eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 520eb1d1641SHerbert Xu { 521eb1d1641SHerbert Xu } 522eb1d1641SHerbert Xu 523eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 524eb1d1641SHerbert Xu { 525eb1d1641SHerbert Xu } 526eb1d1641SHerbert Xu 527eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 528eb1d1641SHerbert Xu { 529eb1d1641SHerbert Xu } 530eb1d1641SHerbert Xu 531eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 532eb1d1641SHerbert Xu { 533eb1d1641SHerbert Xu } 534eb1d1641SHerbert Xu 535eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 536eb1d1641SHerbert Xu { 537eb1d1641SHerbert Xu } 538eb1d1641SHerbert Xu 539eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 540eb1d1641SHerbert Xu { 541eb1d1641SHerbert Xu } 5425cb5e947SHerbert Xu 5435cb5e947SHerbert Xu static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 5445cb5e947SHerbert Xu struct sk_buff *skb) 5455cb5e947SHerbert Xu { 5465cb5e947SHerbert Xu } 5475cb5e947SHerbert Xu 5485cb5e947SHerbert Xu static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 5495cb5e947SHerbert Xu struct sk_buff *skb, 5505cb5e947SHerbert Xu struct sk_buff *skb2) 5515cb5e947SHerbert Xu { 5525cb5e947SHerbert Xu } 553eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 554eb1d1641SHerbert Xu { 55585b35269SSridhar Samudrala return 0; 556eb1d1641SHerbert Xu } 557fdb184d1SRami Rosen static inline void br_mdb_init(void) 558fdb184d1SRami Rosen { 559fdb184d1SRami Rosen } 560fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 561fdb184d1SRami Rosen { 562fdb184d1SRami Rosen } 56385b35269SSridhar Samudrala #endif 564eb1d1641SHerbert Xu 565243a2e63SVlad Yasevich /* br_vlan.c */ 566243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 567a37b85c9SVlad Yasevich extern bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v, 56878851988SVlad Yasevich struct sk_buff *skb, u16 *vid); 56985f46c6bSVlad Yasevich extern bool br_allowed_egress(struct net_bridge *br, 57085f46c6bSVlad Yasevich const struct net_port_vlans *v, 57185f46c6bSVlad Yasevich const struct sk_buff *skb); 57278851988SVlad Yasevich extern struct sk_buff *br_handle_vlan(struct net_bridge *br, 57378851988SVlad Yasevich const struct net_port_vlans *v, 57478851988SVlad Yasevich struct sk_buff *skb); 575552406c4SVlad Yasevich extern int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); 576243a2e63SVlad Yasevich extern int br_vlan_delete(struct net_bridge *br, u16 vid); 577243a2e63SVlad Yasevich extern void br_vlan_flush(struct net_bridge *br); 578243a2e63SVlad Yasevich extern int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 579552406c4SVlad Yasevich extern int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); 580243a2e63SVlad Yasevich extern int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 581243a2e63SVlad Yasevich extern void nbp_vlan_flush(struct net_bridge_port *port); 582bc9a25d2SVlad Yasevich extern bool nbp_vlan_find(struct net_bridge_port *port, u16 vid); 583a37b85c9SVlad Yasevich 584a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 585a37b85c9SVlad Yasevich const struct net_bridge *br) 586a37b85c9SVlad Yasevich { 5871690be63SVlad Yasevich return rcu_dereference_rtnl(br->vlan_info); 588a37b85c9SVlad Yasevich } 589a37b85c9SVlad Yasevich 590a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 591a37b85c9SVlad Yasevich const struct net_bridge_port *p) 592a37b85c9SVlad Yasevich { 5931690be63SVlad Yasevich return rcu_dereference_rtnl(p->vlan_info); 594a37b85c9SVlad Yasevich } 595a37b85c9SVlad Yasevich 596a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 597a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 598a37b85c9SVlad Yasevich */ 599a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 600a37b85c9SVlad Yasevich { 601a37b85c9SVlad Yasevich int err = 0; 602a37b85c9SVlad Yasevich 603a37b85c9SVlad Yasevich if (vlan_tx_tag_present(skb)) 604a37b85c9SVlad Yasevich *vid = vlan_tx_tag_get(skb) & VLAN_VID_MASK; 605a37b85c9SVlad Yasevich else { 606a37b85c9SVlad Yasevich *vid = 0; 607a37b85c9SVlad Yasevich err = -EINVAL; 608a37b85c9SVlad Yasevich } 609a37b85c9SVlad Yasevich 610a37b85c9SVlad Yasevich return err; 611a37b85c9SVlad Yasevich } 61278851988SVlad Yasevich 61378851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 61478851988SVlad Yasevich { 61578851988SVlad Yasevich /* Return just the VID if it is set, or VLAN_N_VID (invalid vid) if 61678851988SVlad Yasevich * vid wasn't set 61778851988SVlad Yasevich */ 61878851988SVlad Yasevich smp_rmb(); 61978851988SVlad Yasevich return (v->pvid & VLAN_TAG_PRESENT) ? 62078851988SVlad Yasevich (v->pvid & ~VLAN_TAG_PRESENT) : 62178851988SVlad Yasevich VLAN_N_VID; 62278851988SVlad Yasevich } 62378851988SVlad Yasevich 624243a2e63SVlad Yasevich #else 625a37b85c9SVlad Yasevich static inline bool br_allowed_ingress(struct net_bridge *br, 626a37b85c9SVlad Yasevich struct net_port_vlans *v, 62778851988SVlad Yasevich struct sk_buff *skb, 62878851988SVlad Yasevich u16 *vid) 629a37b85c9SVlad Yasevich { 630a37b85c9SVlad Yasevich return true; 631a37b85c9SVlad Yasevich } 632a37b85c9SVlad Yasevich 63385f46c6bSVlad Yasevich static inline bool br_allowed_egress(struct net_bridge *br, 63485f46c6bSVlad Yasevich const struct net_port_vlans *v, 63585f46c6bSVlad Yasevich const struct sk_buff *skb) 63685f46c6bSVlad Yasevich { 63785f46c6bSVlad Yasevich return true; 63885f46c6bSVlad Yasevich } 63985f46c6bSVlad Yasevich 64078851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 64178851988SVlad Yasevich const struct net_port_vlans *v, 64278851988SVlad Yasevich struct sk_buff *skb) 64378851988SVlad Yasevich { 64478851988SVlad Yasevich return skb; 64578851988SVlad Yasevich } 64678851988SVlad Yasevich 647552406c4SVlad Yasevich static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) 648243a2e63SVlad Yasevich { 649243a2e63SVlad Yasevich return -EOPNOTSUPP; 650243a2e63SVlad Yasevich } 651243a2e63SVlad Yasevich 652243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 653243a2e63SVlad Yasevich { 654243a2e63SVlad Yasevich return -EOPNOTSUPP; 655243a2e63SVlad Yasevich } 656243a2e63SVlad Yasevich 657243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 658243a2e63SVlad Yasevich { 659243a2e63SVlad Yasevich } 660243a2e63SVlad Yasevich 661552406c4SVlad Yasevich static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) 662243a2e63SVlad Yasevich { 663243a2e63SVlad Yasevich return -EOPNOTSUPP; 664243a2e63SVlad Yasevich } 665243a2e63SVlad Yasevich 666243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 667243a2e63SVlad Yasevich { 668243a2e63SVlad Yasevich return -EOPNOTSUPP; 669243a2e63SVlad Yasevich } 670243a2e63SVlad Yasevich 671243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 672243a2e63SVlad Yasevich { 673243a2e63SVlad Yasevich } 674243a2e63SVlad Yasevich 675a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 676a37b85c9SVlad Yasevich const struct net_bridge *br) 677a37b85c9SVlad Yasevich { 678a37b85c9SVlad Yasevich return NULL; 679a37b85c9SVlad Yasevich } 680a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 681a37b85c9SVlad Yasevich const struct net_bridge_port *p) 682a37b85c9SVlad Yasevich { 683a37b85c9SVlad Yasevich return NULL; 684a37b85c9SVlad Yasevich } 685a37b85c9SVlad Yasevich 686bc9a25d2SVlad Yasevich static inline bool nbp_vlan_find(struct net_bridge_port *port, u16 vid) 687bc9a25d2SVlad Yasevich { 688bc9a25d2SVlad Yasevich return false; 689bc9a25d2SVlad Yasevich } 690bc9a25d2SVlad Yasevich 69178851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 692a37b85c9SVlad Yasevich { 693a37b85c9SVlad Yasevich return 0; 694a37b85c9SVlad Yasevich } 69578851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 69678851988SVlad Yasevich { 69778851988SVlad Yasevich return VLAN_N_VID; /* Returns invalid vid */ 69878851988SVlad Yasevich } 699243a2e63SVlad Yasevich #endif 700243a2e63SVlad Yasevich 7011da177e4SLinus Torvalds /* br_netfilter.c */ 702c0909713SStephen Hemminger #ifdef CONFIG_BRIDGE_NETFILTER 7031da177e4SLinus Torvalds extern int br_netfilter_init(void); 7041da177e4SLinus Torvalds extern void br_netfilter_fini(void); 7054adf0af6SSimon Wunderlich extern void br_netfilter_rtable_init(struct net_bridge *); 706c0909713SStephen Hemminger #else 707c0909713SStephen Hemminger #define br_netfilter_init() (0) 708c0909713SStephen Hemminger #define br_netfilter_fini() do { } while(0) 7094adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 710c0909713SStephen Hemminger #endif 7111da177e4SLinus Torvalds 7121da177e4SLinus Torvalds /* br_stp.c */ 7131da177e4SLinus Torvalds extern void br_log_state(const struct net_bridge_port *p); 7141da177e4SLinus Torvalds extern struct net_bridge_port *br_get_port(struct net_bridge *br, 7151da177e4SLinus Torvalds u16 port_no); 7161da177e4SLinus Torvalds extern void br_init_port(struct net_bridge_port *p); 7171da177e4SLinus Torvalds extern void br_become_designated_port(struct net_bridge_port *p); 7181da177e4SLinus Torvalds 71914f98f25Sstephen hemminger extern int br_set_forward_delay(struct net_bridge *br, unsigned long x); 72014f98f25Sstephen hemminger extern int br_set_hello_time(struct net_bridge *br, unsigned long x); 72114f98f25Sstephen hemminger extern int br_set_max_age(struct net_bridge *br, unsigned long x); 72214f98f25Sstephen hemminger 72314f98f25Sstephen hemminger 7241da177e4SLinus Torvalds /* br_stp_if.c */ 7251da177e4SLinus Torvalds extern void br_stp_enable_bridge(struct net_bridge *br); 7261da177e4SLinus Torvalds extern void br_stp_disable_bridge(struct net_bridge *br); 7279cde0708SStephen Hemminger extern void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 7281da177e4SLinus Torvalds extern void br_stp_enable_port(struct net_bridge_port *p); 7291da177e4SLinus Torvalds extern void br_stp_disable_port(struct net_bridge_port *p); 730edf947f1Sstephen hemminger extern bool br_stp_recalculate_bridge_id(struct net_bridge *br); 7314505a3efSStephen Hemminger extern void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 7321da177e4SLinus Torvalds extern void br_stp_set_bridge_priority(struct net_bridge *br, 7331da177e4SLinus Torvalds u16 newprio); 73414f98f25Sstephen hemminger extern int br_stp_set_port_priority(struct net_bridge_port *p, 73514f98f25Sstephen hemminger unsigned long newprio); 73614f98f25Sstephen hemminger extern int br_stp_set_path_cost(struct net_bridge_port *p, 73714f98f25Sstephen hemminger unsigned long path_cost); 7381da177e4SLinus Torvalds extern ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 7391da177e4SLinus Torvalds 7401da177e4SLinus Torvalds /* br_stp_bpdu.c */ 7417c85fbf0SPatrick McHardy struct stp_proto; 7427c85fbf0SPatrick McHardy extern void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 7437c85fbf0SPatrick McHardy struct net_device *dev); 7441da177e4SLinus Torvalds 7451da177e4SLinus Torvalds /* br_stp_timer.c */ 7461da177e4SLinus Torvalds extern void br_stp_timer_init(struct net_bridge *br); 7471da177e4SLinus Torvalds extern void br_stp_port_timer_init(struct net_bridge_port *p); 7481da177e4SLinus Torvalds extern unsigned long br_timer_value(const struct timer_list *timer); 7491da177e4SLinus Torvalds 7501da177e4SLinus Torvalds /* br.c */ 751e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 752da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 753da678292SMichał Mirosław #endif 7541da177e4SLinus Torvalds 75511dc1f36SStephen Hemminger /* br_netlink.c */ 756149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 75732fe21c0SThomas Graf extern int br_netlink_init(void); 75811dc1f36SStephen Hemminger extern void br_netlink_fini(void); 75911dc1f36SStephen Hemminger extern void br_ifinfo_notify(int event, struct net_bridge_port *port); 760e5a55a89SJohn Fastabend extern int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg); 761407af329SVlad Yasevich extern int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg); 762e5a55a89SJohn Fastabend extern int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, 7636cbdceebSVlad Yasevich struct net_device *dev, u32 filter_mask); 76411dc1f36SStephen Hemminger 7651da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 7661da177e4SLinus Torvalds /* br_sysfs_if.c */ 76752cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 7681da177e4SLinus Torvalds extern int br_sysfs_addif(struct net_bridge_port *p); 769e0f43752SSimon Arlott extern int br_sysfs_renameif(struct net_bridge_port *p); 7701da177e4SLinus Torvalds 7711da177e4SLinus Torvalds /* br_sysfs_br.c */ 7721da177e4SLinus Torvalds extern int br_sysfs_addbr(struct net_device *dev); 7731da177e4SLinus Torvalds extern void br_sysfs_delbr(struct net_device *dev); 7741da177e4SLinus Torvalds 7751da177e4SLinus Torvalds #else 7761da177e4SLinus Torvalds 7770cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 7780cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 7790cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 7800cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 7811da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 7821da177e4SLinus Torvalds 7831da177e4SLinus Torvalds #endif 784