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 1619ba18891SVlad Yasevich #define BR_LEARNING 0x00000020 162867a5943SVlad Yasevich #define BR_FLOOD 0x00000040 163eb1d1641SHerbert Xu 164eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 165eb1d1641SHerbert Xu u32 multicast_startup_queries_sent; 166eb1d1641SHerbert Xu unsigned char multicast_router; 167eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 168eb1d1641SHerbert Xu struct timer_list multicast_query_timer; 169eb1d1641SHerbert Xu struct hlist_head mglist; 170eb1d1641SHerbert Xu struct hlist_node rlist; 171eb1d1641SHerbert Xu #endif 172e0f43752SSimon Arlott 173e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 174e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 175e0f43752SSimon Arlott #endif 17691d2c34aSHerbert Xu 17791d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 17891d2c34aSHerbert Xu struct netpoll *np; 17991d2c34aSHerbert Xu #endif 180243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 181243a2e63SVlad Yasevich struct net_port_vlans __rcu *vlan_info; 182243a2e63SVlad Yasevich #endif 1831da177e4SLinus Torvalds }; 1841da177e4SLinus Torvalds 185f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 186f350a0a8SJiri Pirko 187b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 188b5ed54e9Sstephen hemminger { 1892469ffd7SJohn Fastabend struct net_bridge_port *port = 1902469ffd7SJohn Fastabend rcu_dereference_rtnl(dev->rx_handler_data); 1912469ffd7SJohn Fastabend 192b5ed54e9Sstephen hemminger return br_port_exists(dev) ? port : NULL; 193b5ed54e9Sstephen hemminger } 194b5ed54e9Sstephen hemminger 195ec1e5610SEric Dumazet static inline struct net_bridge_port *br_port_get_rtnl(struct net_device *dev) 196b5ed54e9Sstephen hemminger { 197ec1e5610SEric Dumazet return br_port_exists(dev) ? 198ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 199b5ed54e9Sstephen hemminger } 200b5ed54e9Sstephen hemminger 2010eae88f3SEric Dumazet struct br_cpu_netstats { 202406818ffSEric Dumazet u64 rx_packets; 203406818ffSEric Dumazet u64 rx_bytes; 204406818ffSEric Dumazet u64 tx_packets; 205406818ffSEric Dumazet u64 tx_bytes; 206406818ffSEric Dumazet struct u64_stats_sync syncp; 2070eae88f3SEric Dumazet }; 2080eae88f3SEric Dumazet 2091da177e4SLinus Torvalds struct net_bridge 2101da177e4SLinus Torvalds { 2111da177e4SLinus Torvalds spinlock_t lock; 2121da177e4SLinus Torvalds struct list_head port_list; 2131da177e4SLinus Torvalds struct net_device *dev; 21414bb4789Sstephen hemminger 2150eae88f3SEric Dumazet struct br_cpu_netstats __percpu *stats; 2161da177e4SLinus Torvalds spinlock_t hash_lock; 2171da177e4SLinus Torvalds struct hlist_head hash[BR_HASH_SIZE]; 2184adf0af6SSimon Wunderlich #ifdef CONFIG_BRIDGE_NETFILTER 2194adf0af6SSimon Wunderlich struct rtable fake_rtable; 2204df53d8bSPatrick McHardy bool nf_call_iptables; 2214df53d8bSPatrick McHardy bool nf_call_ip6tables; 2224df53d8bSPatrick McHardy bool nf_call_arptables; 2234adf0af6SSimon Wunderlich #endif 224515853ccSstephen hemminger u16 group_fwd_mask; 225515853ccSstephen hemminger 2261da177e4SLinus Torvalds /* STP */ 2271da177e4SLinus Torvalds bridge_id designated_root; 2281da177e4SLinus Torvalds bridge_id bridge_id; 2291da177e4SLinus Torvalds u32 root_path_cost; 2301da177e4SLinus Torvalds unsigned long max_age; 2311da177e4SLinus Torvalds unsigned long hello_time; 2321da177e4SLinus Torvalds unsigned long forward_delay; 2331da177e4SLinus Torvalds unsigned long bridge_max_age; 2341da177e4SLinus Torvalds unsigned long ageing_time; 2351da177e4SLinus Torvalds unsigned long bridge_hello_time; 2361da177e4SLinus Torvalds unsigned long bridge_forward_delay; 2371da177e4SLinus Torvalds 238fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 2391da177e4SLinus Torvalds u16 root_port; 2409cde0708SStephen Hemminger 2419cde0708SStephen Hemminger enum { 2429cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 2439cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 2449cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 2459cde0708SStephen Hemminger } stp_enabled; 2469cde0708SStephen Hemminger 2471da177e4SLinus Torvalds unsigned char topology_change; 2481da177e4SLinus Torvalds unsigned char topology_change_detected; 2491da177e4SLinus Torvalds 250eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 251eb1d1641SHerbert Xu unsigned char multicast_router; 252eb1d1641SHerbert Xu 253eb1d1641SHerbert Xu u8 multicast_disabled:1; 254c5c23260SHerbert Xu u8 multicast_querier:1; 2551c8ad5bfSCong Wang u8 multicast_query_use_ifaddr:1; 256eb1d1641SHerbert Xu 257eb1d1641SHerbert Xu u32 hash_elasticity; 258eb1d1641SHerbert Xu u32 hash_max; 259eb1d1641SHerbert Xu 260eb1d1641SHerbert Xu u32 multicast_last_member_count; 261eb1d1641SHerbert Xu u32 multicast_startup_queries_sent; 262eb1d1641SHerbert Xu u32 multicast_startup_query_count; 263eb1d1641SHerbert Xu 264eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 265eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 266eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 267eb1d1641SHerbert Xu unsigned long multicast_query_interval; 268eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 269eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 270b00589afSLinus Lüssing unsigned long multicast_querier_delay_time; 271eb1d1641SHerbert Xu 272eb1d1641SHerbert Xu spinlock_t multicast_lock; 273e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 274eb1d1641SHerbert Xu struct hlist_head router_list; 275eb1d1641SHerbert Xu 276eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 277eb1d1641SHerbert Xu struct timer_list multicast_querier_timer; 278eb1d1641SHerbert Xu struct timer_list multicast_query_timer; 279eb1d1641SHerbert Xu #endif 280eb1d1641SHerbert Xu 2811da177e4SLinus Torvalds struct timer_list hello_timer; 2821da177e4SLinus Torvalds struct timer_list tcn_timer; 2831da177e4SLinus Torvalds struct timer_list topology_change_timer; 2841da177e4SLinus Torvalds struct timer_list gc_timer; 28543b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 286243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 287243a2e63SVlad Yasevich u8 vlan_enabled; 288243a2e63SVlad Yasevich struct net_port_vlans __rcu *vlan_info; 289243a2e63SVlad Yasevich #endif 2901da177e4SLinus Torvalds }; 2911da177e4SLinus Torvalds 29268b7c895SHerbert Xu struct br_input_skb_cb { 29368b7c895SHerbert Xu struct net_device *brdev; 29432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 295eb1d1641SHerbert Xu int igmp; 296eb1d1641SHerbert Xu int mrouters_only; 29732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 29868b7c895SHerbert Xu }; 29968b7c895SHerbert Xu 30068b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 30168b7c895SHerbert Xu 30232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 30332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 30432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 30532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 30632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 30732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 30828a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 30928a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 31028a16c97Sstephen hemminger 31128a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 31228a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 31328a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 31428a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 31528a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 31628a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 31728a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 31828a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 31928a16c97Sstephen hemminger 32028a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 32128a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 32228a16c97Sstephen hemminger 3231da177e4SLinus Torvalds extern struct notifier_block br_device_notifier; 3241da177e4SLinus Torvalds 3251da177e4SLinus Torvalds /* called under bridge lock */ 3261da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 3271da177e4SLinus Torvalds { 3281da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 3291da177e4SLinus Torvalds } 3301da177e4SLinus Torvalds 3311da177e4SLinus Torvalds /* br_device.c */ 3321da177e4SLinus Torvalds extern void br_dev_setup(struct net_device *dev); 3331ce5cce8Sstephen hemminger extern void br_dev_delete(struct net_device *dev, struct list_head *list); 3346fef4c0cSStephen Hemminger extern netdev_tx_t br_dev_xmit(struct sk_buff *skb, 3356fef4c0cSStephen Hemminger struct net_device *dev); 336cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 33791d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 33891d2c34aSHerbert Xu struct sk_buff *skb) 33991d2c34aSHerbert Xu { 34091d2c34aSHerbert Xu struct netpoll *np = p->np; 34191d2c34aSHerbert Xu 34291d2c34aSHerbert Xu if (np) 34391d2c34aSHerbert Xu netpoll_send_skb(np, skb); 34491d2c34aSHerbert Xu } 34591d2c34aSHerbert Xu 34647be03a2SAmerigo Wang extern int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp); 34791d2c34aSHerbert Xu extern void br_netpoll_disable(struct net_bridge_port *p); 34891d2c34aSHerbert Xu #else 3499f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 35091d2c34aSHerbert Xu struct sk_buff *skb) 35191d2c34aSHerbert Xu { 35291d2c34aSHerbert Xu } 35391d2c34aSHerbert Xu 35447be03a2SAmerigo Wang static inline int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp) 35591d2c34aSHerbert Xu { 35691d2c34aSHerbert Xu return 0; 35791d2c34aSHerbert Xu } 35891d2c34aSHerbert Xu 35991d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 36091d2c34aSHerbert Xu { 36191d2c34aSHerbert Xu } 362cfb478daSstephen hemminger #endif 3631da177e4SLinus Torvalds 3641da177e4SLinus Torvalds /* br_fdb.c */ 36587a596e0SAkinobu Mita extern int br_fdb_init(void); 3661da177e4SLinus Torvalds extern void br_fdb_fini(void); 3679cf63747SStephen Hemminger extern void br_fdb_flush(struct net_bridge *br); 3681da177e4SLinus Torvalds extern void br_fdb_changeaddr(struct net_bridge_port *p, 3691da177e4SLinus Torvalds const unsigned char *newaddr); 37043598813Sstephen hemminger extern void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 3711da177e4SLinus Torvalds extern void br_fdb_cleanup(unsigned long arg); 3721da177e4SLinus Torvalds extern void br_fdb_delete_by_port(struct net_bridge *br, 3731a620698SStephen Hemminger const struct net_bridge_port *p, int do_all); 3741da177e4SLinus Torvalds extern struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, 3752ba071ecSVlad Yasevich const unsigned char *addr, 3762ba071ecSVlad Yasevich __u16 vid); 377da678292SMichał Mirosław extern int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 3781da177e4SLinus Torvalds extern int br_fdb_fillbuf(struct net_bridge *br, void *buf, 3791da177e4SLinus Torvalds unsigned long count, unsigned long off); 3801da177e4SLinus Torvalds extern int br_fdb_insert(struct net_bridge *br, 3811da177e4SLinus Torvalds struct net_bridge_port *source, 382bc9a25d2SVlad Yasevich const unsigned char *addr, 383bc9a25d2SVlad Yasevich u16 vid); 3841da177e4SLinus Torvalds extern void br_fdb_update(struct net_bridge *br, 3851da177e4SLinus Torvalds struct net_bridge_port *source, 3862ba071ecSVlad Yasevich const unsigned char *addr, 3872ba071ecSVlad Yasevich u16 vid); 388bc9a25d2SVlad Yasevich extern int fdb_delete_by_addr(struct net_bridge *br, const u8 *addr, u16 vid); 38977162022SJohn Fastabend 3901690be63SVlad Yasevich extern int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 39177162022SJohn Fastabend struct net_device *dev, 3926b6e2725Sstephen hemminger const unsigned char *addr); 393edc7d573Sstephen hemminger extern int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], 39477162022SJohn Fastabend struct net_device *dev, 3956b6e2725Sstephen hemminger const unsigned char *addr, 39677162022SJohn Fastabend u16 nlh_flags); 39777162022SJohn Fastabend extern int br_fdb_dump(struct sk_buff *skb, 39877162022SJohn Fastabend struct netlink_callback *cb, 39977162022SJohn Fastabend struct net_device *dev, 40077162022SJohn Fastabend int idx); 4011da177e4SLinus Torvalds 4021da177e4SLinus Torvalds /* br_forward.c */ 4031da177e4SLinus Torvalds extern void br_deliver(const struct net_bridge_port *to, 4041da177e4SLinus Torvalds struct sk_buff *skb); 4051da177e4SLinus Torvalds extern int br_dev_queue_push_xmit(struct sk_buff *skb); 4061da177e4SLinus Torvalds extern void br_forward(const struct net_bridge_port *to, 4077f7708f0SMichael Braun struct sk_buff *skb, struct sk_buff *skb0); 4081da177e4SLinus Torvalds extern int br_forward_finish(struct sk_buff *skb); 409867a5943SVlad Yasevich extern void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, 410867a5943SVlad Yasevich bool unicast); 411b33084beSHerbert Xu extern void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, 412867a5943SVlad Yasevich struct sk_buff *skb2, bool unicast); 4131da177e4SLinus Torvalds 4141da177e4SLinus Torvalds /* br_if.c */ 415269def7cSStephen Hemminger extern void br_port_carrier_check(struct net_bridge_port *p); 4164aa678baSAlexey Dobriyan extern int br_add_bridge(struct net *net, const char *name); 4174aa678baSAlexey Dobriyan extern int br_del_bridge(struct net *net, const char *name); 418712d6954SAlexey Dobriyan extern void br_net_exit(struct net *net); 4191da177e4SLinus Torvalds extern int br_add_if(struct net_bridge *br, 4201da177e4SLinus Torvalds struct net_device *dev); 4211da177e4SLinus Torvalds extern int br_del_if(struct net_bridge *br, 4221da177e4SLinus Torvalds struct net_device *dev); 4231da177e4SLinus Torvalds extern int br_min_mtu(const struct net_bridge *br); 424c8f44affSMichał Mirosław extern netdev_features_t br_features_recompute(struct net_bridge *br, 425c8f44affSMichał Mirosław netdev_features_t features); 4261da177e4SLinus Torvalds 4271da177e4SLinus Torvalds /* br_input.c */ 4281da177e4SLinus Torvalds extern int br_handle_frame_finish(struct sk_buff *skb); 4298a4eb573SJiri Pirko extern rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 4301da177e4SLinus Torvalds 4311da177e4SLinus Torvalds /* br_ioctl.c */ 4321da177e4SLinus Torvalds extern int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 433881d966bSEric W. Biederman extern int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __user *arg); 4341da177e4SLinus Torvalds 435eb1d1641SHerbert Xu /* br_multicast.c */ 436eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 4372ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 438eb1d1641SHerbert Xu extern int br_multicast_rcv(struct net_bridge *br, 439eb1d1641SHerbert Xu struct net_bridge_port *port, 440eb1d1641SHerbert Xu struct sk_buff *skb); 441eb1d1641SHerbert Xu extern struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 442fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 443eb1d1641SHerbert Xu extern void br_multicast_add_port(struct net_bridge_port *port); 444eb1d1641SHerbert Xu extern void br_multicast_del_port(struct net_bridge_port *port); 445eb1d1641SHerbert Xu extern void br_multicast_enable_port(struct net_bridge_port *port); 446eb1d1641SHerbert Xu extern void br_multicast_disable_port(struct net_bridge_port *port); 447eb1d1641SHerbert Xu extern void br_multicast_init(struct net_bridge *br); 448eb1d1641SHerbert Xu extern void br_multicast_open(struct net_bridge *br); 449eb1d1641SHerbert Xu extern void br_multicast_stop(struct net_bridge *br); 4505cb5e947SHerbert Xu extern void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 4515cb5e947SHerbert Xu struct sk_buff *skb); 4525cb5e947SHerbert Xu extern void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 4535cb5e947SHerbert Xu struct sk_buff *skb, struct sk_buff *skb2); 4540909e117SHerbert Xu extern int br_multicast_set_router(struct net_bridge *br, unsigned long val); 4550909e117SHerbert Xu extern int br_multicast_set_port_router(struct net_bridge_port *p, 4560909e117SHerbert Xu unsigned long val); 457561f1103SHerbert Xu extern int br_multicast_toggle(struct net_bridge *br, unsigned long val); 458c5c23260SHerbert Xu extern int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 459b195167fSHerbert Xu extern int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 460cfd56754SCong Wang extern struct net_bridge_mdb_entry *br_mdb_ip_get( 461cfd56754SCong Wang struct net_bridge_mdb_htable *mdb, 462cfd56754SCong Wang struct br_ip *dst); 463cfd56754SCong Wang extern struct net_bridge_mdb_entry *br_multicast_new_group(struct net_bridge *br, 464cfd56754SCong Wang struct net_bridge_port *port, struct br_ip *group); 465cfd56754SCong Wang extern void br_multicast_free_pg(struct rcu_head *head); 466cfd56754SCong Wang extern struct net_bridge_port_group *br_multicast_new_port_group( 467cfd56754SCong Wang struct net_bridge_port *port, 468cfd56754SCong Wang struct br_ip *group, 469762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 470ccb1c31aSAmerigo Wang unsigned char state); 471ee07c6e7SCong Wang extern void br_mdb_init(void); 47263233159SVlad Yasevich extern void br_mdb_uninit(void); 47337a393bcSCong Wang extern void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 47437a393bcSCong Wang struct br_ip *group, int type); 47585b35269SSridhar Samudrala 476cfd56754SCong Wang #define mlock_dereference(X, br) \ 477cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 478cfd56754SCong Wang 479cfd56754SCong Wang #if IS_ENABLED(CONFIG_IPV6) 480cfd56754SCong Wang #include <net/addrconf.h> 481cfd56754SCong Wang static inline int ipv6_is_transient_multicast(const struct in6_addr *addr) 482cfd56754SCong Wang { 483cfd56754SCong Wang if (ipv6_addr_is_multicast(addr) && IPV6_ADDR_MC_FLAG_TRANSIENT(addr)) 484cfd56754SCong Wang return 1; 485cfd56754SCong Wang return 0; 486cfd56754SCong Wang } 487cfd56754SCong Wang #endif 488cfd56754SCong Wang 48985b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 49085b35269SSridhar Samudrala { 49185b35269SSridhar Samudrala return br->multicast_router == 2 || 49285b35269SSridhar Samudrala (br->multicast_router == 1 && 49385b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 49485b35269SSridhar Samudrala } 495b00589afSLinus Lüssing 496b00589afSLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br) 497b00589afSLinus Lüssing { 498b00589afSLinus Lüssing return time_is_before_jiffies(br->multicast_querier_delay_time) && 499b00589afSLinus Lüssing (br->multicast_querier || 500b00589afSLinus Lüssing timer_pending(&br->multicast_querier_timer)); 501b00589afSLinus Lüssing } 502eb1d1641SHerbert Xu #else 503eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 504eb1d1641SHerbert Xu struct net_bridge_port *port, 505eb1d1641SHerbert Xu struct sk_buff *skb) 506eb1d1641SHerbert Xu { 507eb1d1641SHerbert Xu return 0; 508eb1d1641SHerbert Xu } 509eb1d1641SHerbert Xu 510eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 511fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 512eb1d1641SHerbert Xu { 513eb1d1641SHerbert Xu return NULL; 514eb1d1641SHerbert Xu } 515eb1d1641SHerbert Xu 516eb1d1641SHerbert Xu static inline void br_multicast_add_port(struct net_bridge_port *port) 517eb1d1641SHerbert Xu { 518eb1d1641SHerbert Xu } 519eb1d1641SHerbert Xu 520eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 521eb1d1641SHerbert Xu { 522eb1d1641SHerbert Xu } 523eb1d1641SHerbert Xu 524eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 525eb1d1641SHerbert Xu { 526eb1d1641SHerbert Xu } 527eb1d1641SHerbert Xu 528eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 529eb1d1641SHerbert Xu { 530eb1d1641SHerbert Xu } 531eb1d1641SHerbert Xu 532eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 533eb1d1641SHerbert Xu { 534eb1d1641SHerbert Xu } 535eb1d1641SHerbert Xu 536eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 537eb1d1641SHerbert Xu { 538eb1d1641SHerbert Xu } 539eb1d1641SHerbert Xu 540eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 541eb1d1641SHerbert Xu { 542eb1d1641SHerbert Xu } 5435cb5e947SHerbert Xu 5445cb5e947SHerbert Xu static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 5455cb5e947SHerbert Xu struct sk_buff *skb) 5465cb5e947SHerbert Xu { 5475cb5e947SHerbert Xu } 5485cb5e947SHerbert Xu 5495cb5e947SHerbert Xu static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 5505cb5e947SHerbert Xu struct sk_buff *skb, 5515cb5e947SHerbert Xu struct sk_buff *skb2) 5525cb5e947SHerbert Xu { 5535cb5e947SHerbert Xu } 554eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 555eb1d1641SHerbert Xu { 55685b35269SSridhar Samudrala return 0; 557eb1d1641SHerbert Xu } 558b00589afSLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br) 559b00589afSLinus Lüssing { 560b00589afSLinus Lüssing return false; 561b00589afSLinus Lüssing } 562fdb184d1SRami Rosen static inline void br_mdb_init(void) 563fdb184d1SRami Rosen { 564fdb184d1SRami Rosen } 565fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 566fdb184d1SRami Rosen { 567fdb184d1SRami Rosen } 56885b35269SSridhar Samudrala #endif 569eb1d1641SHerbert Xu 570243a2e63SVlad Yasevich /* br_vlan.c */ 571243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 572a37b85c9SVlad Yasevich extern bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v, 57378851988SVlad Yasevich struct sk_buff *skb, u16 *vid); 57485f46c6bSVlad Yasevich extern bool br_allowed_egress(struct net_bridge *br, 57585f46c6bSVlad Yasevich const struct net_port_vlans *v, 57685f46c6bSVlad Yasevich const struct sk_buff *skb); 57778851988SVlad Yasevich extern struct sk_buff *br_handle_vlan(struct net_bridge *br, 57878851988SVlad Yasevich const struct net_port_vlans *v, 57978851988SVlad Yasevich struct sk_buff *skb); 580552406c4SVlad Yasevich extern int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); 581243a2e63SVlad Yasevich extern int br_vlan_delete(struct net_bridge *br, u16 vid); 582243a2e63SVlad Yasevich extern void br_vlan_flush(struct net_bridge *br); 583243a2e63SVlad Yasevich extern int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 584552406c4SVlad Yasevich extern int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); 585243a2e63SVlad Yasevich extern int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 586243a2e63SVlad Yasevich extern void nbp_vlan_flush(struct net_bridge_port *port); 587bc9a25d2SVlad Yasevich extern bool nbp_vlan_find(struct net_bridge_port *port, u16 vid); 588a37b85c9SVlad Yasevich 589a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 590a37b85c9SVlad Yasevich const struct net_bridge *br) 591a37b85c9SVlad Yasevich { 5921690be63SVlad Yasevich return rcu_dereference_rtnl(br->vlan_info); 593a37b85c9SVlad Yasevich } 594a37b85c9SVlad Yasevich 595a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 596a37b85c9SVlad Yasevich const struct net_bridge_port *p) 597a37b85c9SVlad Yasevich { 5981690be63SVlad Yasevich return rcu_dereference_rtnl(p->vlan_info); 599a37b85c9SVlad Yasevich } 600a37b85c9SVlad Yasevich 601a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 602a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 603a37b85c9SVlad Yasevich */ 604a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 605a37b85c9SVlad Yasevich { 606a37b85c9SVlad Yasevich int err = 0; 607a37b85c9SVlad Yasevich 608a37b85c9SVlad Yasevich if (vlan_tx_tag_present(skb)) 609a37b85c9SVlad Yasevich *vid = vlan_tx_tag_get(skb) & VLAN_VID_MASK; 610a37b85c9SVlad Yasevich else { 611a37b85c9SVlad Yasevich *vid = 0; 612a37b85c9SVlad Yasevich err = -EINVAL; 613a37b85c9SVlad Yasevich } 614a37b85c9SVlad Yasevich 615a37b85c9SVlad Yasevich return err; 616a37b85c9SVlad Yasevich } 61778851988SVlad Yasevich 61878851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 61978851988SVlad Yasevich { 62078851988SVlad Yasevich /* Return just the VID if it is set, or VLAN_N_VID (invalid vid) if 62178851988SVlad Yasevich * vid wasn't set 62278851988SVlad Yasevich */ 62378851988SVlad Yasevich smp_rmb(); 62478851988SVlad Yasevich return (v->pvid & VLAN_TAG_PRESENT) ? 62578851988SVlad Yasevich (v->pvid & ~VLAN_TAG_PRESENT) : 62678851988SVlad Yasevich VLAN_N_VID; 62778851988SVlad Yasevich } 62878851988SVlad Yasevich 629243a2e63SVlad Yasevich #else 630a37b85c9SVlad Yasevich static inline bool br_allowed_ingress(struct net_bridge *br, 631a37b85c9SVlad Yasevich struct net_port_vlans *v, 63278851988SVlad Yasevich struct sk_buff *skb, 63378851988SVlad Yasevich u16 *vid) 634a37b85c9SVlad Yasevich { 635a37b85c9SVlad Yasevich return true; 636a37b85c9SVlad Yasevich } 637a37b85c9SVlad Yasevich 63885f46c6bSVlad Yasevich static inline bool br_allowed_egress(struct net_bridge *br, 63985f46c6bSVlad Yasevich const struct net_port_vlans *v, 64085f46c6bSVlad Yasevich const struct sk_buff *skb) 64185f46c6bSVlad Yasevich { 64285f46c6bSVlad Yasevich return true; 64385f46c6bSVlad Yasevich } 64485f46c6bSVlad Yasevich 64578851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 64678851988SVlad Yasevich const struct net_port_vlans *v, 64778851988SVlad Yasevich struct sk_buff *skb) 64878851988SVlad Yasevich { 64978851988SVlad Yasevich return skb; 65078851988SVlad Yasevich } 65178851988SVlad Yasevich 652552406c4SVlad Yasevich static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) 653243a2e63SVlad Yasevich { 654243a2e63SVlad Yasevich return -EOPNOTSUPP; 655243a2e63SVlad Yasevich } 656243a2e63SVlad Yasevich 657243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 658243a2e63SVlad Yasevich { 659243a2e63SVlad Yasevich return -EOPNOTSUPP; 660243a2e63SVlad Yasevich } 661243a2e63SVlad Yasevich 662243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 663243a2e63SVlad Yasevich { 664243a2e63SVlad Yasevich } 665243a2e63SVlad Yasevich 666552406c4SVlad Yasevich static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) 667243a2e63SVlad Yasevich { 668243a2e63SVlad Yasevich return -EOPNOTSUPP; 669243a2e63SVlad Yasevich } 670243a2e63SVlad Yasevich 671243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 672243a2e63SVlad Yasevich { 673243a2e63SVlad Yasevich return -EOPNOTSUPP; 674243a2e63SVlad Yasevich } 675243a2e63SVlad Yasevich 676243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 677243a2e63SVlad Yasevich { 678243a2e63SVlad Yasevich } 679243a2e63SVlad Yasevich 680a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 681a37b85c9SVlad Yasevich const struct net_bridge *br) 682a37b85c9SVlad Yasevich { 683a37b85c9SVlad Yasevich return NULL; 684a37b85c9SVlad Yasevich } 685a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 686a37b85c9SVlad Yasevich const struct net_bridge_port *p) 687a37b85c9SVlad Yasevich { 688a37b85c9SVlad Yasevich return NULL; 689a37b85c9SVlad Yasevich } 690a37b85c9SVlad Yasevich 691bc9a25d2SVlad Yasevich static inline bool nbp_vlan_find(struct net_bridge_port *port, u16 vid) 692bc9a25d2SVlad Yasevich { 693bc9a25d2SVlad Yasevich return false; 694bc9a25d2SVlad Yasevich } 695bc9a25d2SVlad Yasevich 69678851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 697a37b85c9SVlad Yasevich { 698a37b85c9SVlad Yasevich return 0; 699a37b85c9SVlad Yasevich } 70078851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 70178851988SVlad Yasevich { 70278851988SVlad Yasevich return VLAN_N_VID; /* Returns invalid vid */ 70378851988SVlad Yasevich } 704243a2e63SVlad Yasevich #endif 705243a2e63SVlad Yasevich 7061da177e4SLinus Torvalds /* br_netfilter.c */ 707c0909713SStephen Hemminger #ifdef CONFIG_BRIDGE_NETFILTER 7081da177e4SLinus Torvalds extern int br_netfilter_init(void); 7091da177e4SLinus Torvalds extern void br_netfilter_fini(void); 7104adf0af6SSimon Wunderlich extern void br_netfilter_rtable_init(struct net_bridge *); 711c0909713SStephen Hemminger #else 712c0909713SStephen Hemminger #define br_netfilter_init() (0) 713c0909713SStephen Hemminger #define br_netfilter_fini() do { } while(0) 7144adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 715c0909713SStephen Hemminger #endif 7161da177e4SLinus Torvalds 7171da177e4SLinus Torvalds /* br_stp.c */ 7181da177e4SLinus Torvalds extern void br_log_state(const struct net_bridge_port *p); 7191da177e4SLinus Torvalds extern struct net_bridge_port *br_get_port(struct net_bridge *br, 7201da177e4SLinus Torvalds u16 port_no); 7211da177e4SLinus Torvalds extern void br_init_port(struct net_bridge_port *p); 7221da177e4SLinus Torvalds extern void br_become_designated_port(struct net_bridge_port *p); 7231da177e4SLinus Torvalds 72414f98f25Sstephen hemminger extern int br_set_forward_delay(struct net_bridge *br, unsigned long x); 72514f98f25Sstephen hemminger extern int br_set_hello_time(struct net_bridge *br, unsigned long x); 72614f98f25Sstephen hemminger extern int br_set_max_age(struct net_bridge *br, unsigned long x); 72714f98f25Sstephen hemminger 72814f98f25Sstephen hemminger 7291da177e4SLinus Torvalds /* br_stp_if.c */ 7301da177e4SLinus Torvalds extern void br_stp_enable_bridge(struct net_bridge *br); 7311da177e4SLinus Torvalds extern void br_stp_disable_bridge(struct net_bridge *br); 7329cde0708SStephen Hemminger extern void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 7331da177e4SLinus Torvalds extern void br_stp_enable_port(struct net_bridge_port *p); 7341da177e4SLinus Torvalds extern void br_stp_disable_port(struct net_bridge_port *p); 735edf947f1Sstephen hemminger extern bool br_stp_recalculate_bridge_id(struct net_bridge *br); 7364505a3efSStephen Hemminger extern void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 7371da177e4SLinus Torvalds extern void br_stp_set_bridge_priority(struct net_bridge *br, 7381da177e4SLinus Torvalds u16 newprio); 73914f98f25Sstephen hemminger extern int br_stp_set_port_priority(struct net_bridge_port *p, 74014f98f25Sstephen hemminger unsigned long newprio); 74114f98f25Sstephen hemminger extern int br_stp_set_path_cost(struct net_bridge_port *p, 74214f98f25Sstephen hemminger unsigned long path_cost); 7431da177e4SLinus Torvalds extern ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 7441da177e4SLinus Torvalds 7451da177e4SLinus Torvalds /* br_stp_bpdu.c */ 7467c85fbf0SPatrick McHardy struct stp_proto; 7477c85fbf0SPatrick McHardy extern void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 7487c85fbf0SPatrick McHardy struct net_device *dev); 7491da177e4SLinus Torvalds 7501da177e4SLinus Torvalds /* br_stp_timer.c */ 7511da177e4SLinus Torvalds extern void br_stp_timer_init(struct net_bridge *br); 7521da177e4SLinus Torvalds extern void br_stp_port_timer_init(struct net_bridge_port *p); 7531da177e4SLinus Torvalds extern unsigned long br_timer_value(const struct timer_list *timer); 7541da177e4SLinus Torvalds 7551da177e4SLinus Torvalds /* br.c */ 756e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 757da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 758da678292SMichał Mirosław #endif 7591da177e4SLinus Torvalds 76011dc1f36SStephen Hemminger /* br_netlink.c */ 761149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 76232fe21c0SThomas Graf extern int br_netlink_init(void); 76311dc1f36SStephen Hemminger extern void br_netlink_fini(void); 76411dc1f36SStephen Hemminger extern void br_ifinfo_notify(int event, struct net_bridge_port *port); 765e5a55a89SJohn Fastabend extern int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg); 766407af329SVlad Yasevich extern int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg); 767e5a55a89SJohn Fastabend extern int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, 7686cbdceebSVlad Yasevich struct net_device *dev, u32 filter_mask); 76911dc1f36SStephen Hemminger 7701da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 7711da177e4SLinus Torvalds /* br_sysfs_if.c */ 77252cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 7731da177e4SLinus Torvalds extern int br_sysfs_addif(struct net_bridge_port *p); 774e0f43752SSimon Arlott extern int br_sysfs_renameif(struct net_bridge_port *p); 7751da177e4SLinus Torvalds 7761da177e4SLinus Torvalds /* br_sysfs_br.c */ 7771da177e4SLinus Torvalds extern int br_sysfs_addbr(struct net_device *dev); 7781da177e4SLinus Torvalds extern void br_sysfs_delbr(struct net_device *dev); 7791da177e4SLinus Torvalds 7801da177e4SLinus Torvalds #else 7811da177e4SLinus Torvalds 7820cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 7830cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 7840cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 7850cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 7861da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 7871da177e4SLinus Torvalds 7881da177e4SLinus Torvalds #endif 789