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> 211da177e4SLinus Torvalds 221da177e4SLinus Torvalds #define BR_HASH_BITS 8 231da177e4SLinus Torvalds #define BR_HASH_SIZE (1 << BR_HASH_BITS) 241da177e4SLinus Torvalds 251da177e4SLinus Torvalds #define BR_HOLD_TIME (1*HZ) 261da177e4SLinus Torvalds 271da177e4SLinus Torvalds #define BR_PORT_BITS 10 281da177e4SLinus Torvalds #define BR_MAX_PORTS (1<<BR_PORT_BITS) 291da177e4SLinus Torvalds 309cde0708SStephen Hemminger #define BR_VERSION "2.3" 319cde0708SStephen Hemminger 329cde0708SStephen Hemminger /* Path to usermode spanning tree program */ 339cde0708SStephen Hemminger #define BR_STP_PROG "/sbin/bridge-stp" 348cbb512eSStephen Hemminger 351da177e4SLinus Torvalds typedef struct bridge_id bridge_id; 361da177e4SLinus Torvalds typedef struct mac_addr mac_addr; 371da177e4SLinus Torvalds typedef __u16 port_id; 381da177e4SLinus Torvalds 391da177e4SLinus Torvalds struct bridge_id 401da177e4SLinus Torvalds { 411da177e4SLinus Torvalds unsigned char prio[2]; 421da177e4SLinus Torvalds unsigned char addr[6]; 431da177e4SLinus Torvalds }; 441da177e4SLinus Torvalds 451da177e4SLinus Torvalds struct mac_addr 461da177e4SLinus Torvalds { 471da177e4SLinus Torvalds unsigned char addr[6]; 481da177e4SLinus Torvalds }; 491da177e4SLinus Torvalds 508ef2a9a5SYOSHIFUJI Hideaki struct br_ip 518ef2a9a5SYOSHIFUJI Hideaki { 528ef2a9a5SYOSHIFUJI Hideaki union { 538ef2a9a5SYOSHIFUJI Hideaki __be32 ip4; 5408b202b6SYOSHIFUJI Hideaki #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) 5508b202b6SYOSHIFUJI Hideaki struct in6_addr ip6; 5608b202b6SYOSHIFUJI Hideaki #endif 578ef2a9a5SYOSHIFUJI Hideaki } u; 588ef2a9a5SYOSHIFUJI Hideaki __be16 proto; 598ef2a9a5SYOSHIFUJI Hideaki }; 608ef2a9a5SYOSHIFUJI Hideaki 611da177e4SLinus Torvalds struct net_bridge_fdb_entry 621da177e4SLinus Torvalds { 631da177e4SLinus Torvalds struct hlist_node hlist; 641da177e4SLinus Torvalds struct net_bridge_port *dst; 651da177e4SLinus Torvalds 661da177e4SLinus Torvalds struct rcu_head rcu; 677cd8861aSstephen hemminger unsigned long updated; 687cd8861aSstephen hemminger unsigned long used; 691da177e4SLinus Torvalds mac_addr addr; 701da177e4SLinus Torvalds unsigned char is_local; 711da177e4SLinus Torvalds unsigned char is_static; 721da177e4SLinus Torvalds }; 731da177e4SLinus Torvalds 74eb1d1641SHerbert Xu struct net_bridge_port_group { 75eb1d1641SHerbert Xu struct net_bridge_port *port; 76e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 77eb1d1641SHerbert Xu struct hlist_node mglist; 78eb1d1641SHerbert Xu struct rcu_head rcu; 79eb1d1641SHerbert Xu struct timer_list timer; 80eb1d1641SHerbert Xu struct timer_list query_timer; 818ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 82eb1d1641SHerbert Xu u32 queries_sent; 83eb1d1641SHerbert Xu }; 84eb1d1641SHerbert Xu 85eb1d1641SHerbert Xu struct net_bridge_mdb_entry 86eb1d1641SHerbert Xu { 87eb1d1641SHerbert Xu struct hlist_node hlist[2]; 88eb1d1641SHerbert Xu struct net_bridge *br; 89e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 90eb1d1641SHerbert Xu struct rcu_head rcu; 91eb1d1641SHerbert Xu struct timer_list timer; 92eb1d1641SHerbert Xu struct timer_list query_timer; 938ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 948a870178SHerbert Xu bool mglist; 95eb1d1641SHerbert Xu u32 queries_sent; 96eb1d1641SHerbert Xu }; 97eb1d1641SHerbert Xu 98eb1d1641SHerbert Xu struct net_bridge_mdb_htable 99eb1d1641SHerbert Xu { 100eb1d1641SHerbert Xu struct hlist_head *mhash; 101eb1d1641SHerbert Xu struct rcu_head rcu; 102eb1d1641SHerbert Xu struct net_bridge_mdb_htable *old; 103eb1d1641SHerbert Xu u32 size; 104eb1d1641SHerbert Xu u32 max; 105eb1d1641SHerbert Xu u32 secret; 106eb1d1641SHerbert Xu u32 ver; 107eb1d1641SHerbert Xu }; 108eb1d1641SHerbert Xu 1091da177e4SLinus Torvalds struct net_bridge_port 1101da177e4SLinus Torvalds { 1111da177e4SLinus Torvalds struct net_bridge *br; 1121da177e4SLinus Torvalds struct net_device *dev; 1131da177e4SLinus Torvalds struct list_head list; 1141da177e4SLinus Torvalds 1151da177e4SLinus Torvalds /* STP */ 1161da177e4SLinus Torvalds u8 priority; 1171da177e4SLinus Torvalds u8 state; 1181da177e4SLinus Torvalds u16 port_no; 1191da177e4SLinus Torvalds unsigned char topology_change_ack; 1201da177e4SLinus Torvalds unsigned char config_pending; 1211da177e4SLinus Torvalds port_id port_id; 1221da177e4SLinus Torvalds port_id designated_port; 1231da177e4SLinus Torvalds bridge_id designated_root; 1241da177e4SLinus Torvalds bridge_id designated_bridge; 1251da177e4SLinus Torvalds u32 path_cost; 1261da177e4SLinus Torvalds u32 designated_cost; 1271da177e4SLinus Torvalds 1281da177e4SLinus Torvalds struct timer_list forward_delay_timer; 1291da177e4SLinus Torvalds struct timer_list hold_timer; 1301da177e4SLinus Torvalds struct timer_list message_age_timer; 1311da177e4SLinus Torvalds struct kobject kobj; 1321da177e4SLinus Torvalds struct rcu_head rcu; 1333982d3d2SFischer, Anna 1343982d3d2SFischer, Anna unsigned long flags; 1353982d3d2SFischer, Anna #define BR_HAIRPIN_MODE 0x00000001 136eb1d1641SHerbert Xu 137eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 138eb1d1641SHerbert Xu u32 multicast_startup_queries_sent; 139eb1d1641SHerbert Xu unsigned char multicast_router; 140eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 141eb1d1641SHerbert Xu struct timer_list multicast_query_timer; 142eb1d1641SHerbert Xu struct hlist_head mglist; 143eb1d1641SHerbert Xu struct hlist_node rlist; 144eb1d1641SHerbert Xu #endif 145e0f43752SSimon Arlott 146e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 147e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 148e0f43752SSimon Arlott #endif 14991d2c34aSHerbert Xu 15091d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 15191d2c34aSHerbert Xu struct netpoll *np; 15291d2c34aSHerbert Xu #endif 1531da177e4SLinus Torvalds }; 1541da177e4SLinus Torvalds 155f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 156f350a0a8SJiri Pirko 157b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 158b5ed54e9Sstephen hemminger { 159b5ed54e9Sstephen hemminger struct net_bridge_port *port = rcu_dereference(dev->rx_handler_data); 160b5ed54e9Sstephen hemminger return br_port_exists(dev) ? port : NULL; 161b5ed54e9Sstephen hemminger } 162b5ed54e9Sstephen hemminger 163ec1e5610SEric Dumazet static inline struct net_bridge_port *br_port_get_rtnl(struct net_device *dev) 164b5ed54e9Sstephen hemminger { 165ec1e5610SEric Dumazet return br_port_exists(dev) ? 166ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 167b5ed54e9Sstephen hemminger } 168b5ed54e9Sstephen hemminger 1690eae88f3SEric Dumazet struct br_cpu_netstats { 170406818ffSEric Dumazet u64 rx_packets; 171406818ffSEric Dumazet u64 rx_bytes; 172406818ffSEric Dumazet u64 tx_packets; 173406818ffSEric Dumazet u64 tx_bytes; 174406818ffSEric Dumazet struct u64_stats_sync syncp; 1750eae88f3SEric Dumazet }; 1760eae88f3SEric Dumazet 1771da177e4SLinus Torvalds struct net_bridge 1781da177e4SLinus Torvalds { 1791da177e4SLinus Torvalds spinlock_t lock; 1801da177e4SLinus Torvalds struct list_head port_list; 1811da177e4SLinus Torvalds struct net_device *dev; 18214bb4789Sstephen hemminger 1830eae88f3SEric Dumazet struct br_cpu_netstats __percpu *stats; 1841da177e4SLinus Torvalds spinlock_t hash_lock; 1851da177e4SLinus Torvalds struct hlist_head hash[BR_HASH_SIZE]; 18604ed3e74SMichał Mirosław u32 feature_mask; 1874adf0af6SSimon Wunderlich #ifdef CONFIG_BRIDGE_NETFILTER 1884adf0af6SSimon Wunderlich struct rtable fake_rtable; 1894df53d8bSPatrick McHardy bool nf_call_iptables; 1904df53d8bSPatrick McHardy bool nf_call_ip6tables; 1914df53d8bSPatrick McHardy bool nf_call_arptables; 1924adf0af6SSimon Wunderlich #endif 19392c0574fSStephen Hemminger unsigned long flags; 19492c0574fSStephen Hemminger #define BR_SET_MAC_ADDR 0x00000001 1951da177e4SLinus Torvalds 1961da177e4SLinus Torvalds /* STP */ 1971da177e4SLinus Torvalds bridge_id designated_root; 1981da177e4SLinus Torvalds bridge_id bridge_id; 1991da177e4SLinus Torvalds u32 root_path_cost; 2001da177e4SLinus Torvalds unsigned long max_age; 2011da177e4SLinus Torvalds unsigned long hello_time; 2021da177e4SLinus Torvalds unsigned long forward_delay; 2031da177e4SLinus Torvalds unsigned long bridge_max_age; 2041da177e4SLinus Torvalds unsigned long ageing_time; 2051da177e4SLinus Torvalds unsigned long bridge_hello_time; 2061da177e4SLinus Torvalds unsigned long bridge_forward_delay; 2071da177e4SLinus Torvalds 208fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 2091da177e4SLinus Torvalds u16 root_port; 2109cde0708SStephen Hemminger 2119cde0708SStephen Hemminger enum { 2129cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 2139cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 2149cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 2159cde0708SStephen Hemminger } stp_enabled; 2169cde0708SStephen Hemminger 2171da177e4SLinus Torvalds unsigned char topology_change; 2181da177e4SLinus Torvalds unsigned char topology_change_detected; 2191da177e4SLinus Torvalds 220eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 221eb1d1641SHerbert Xu unsigned char multicast_router; 222eb1d1641SHerbert Xu 223eb1d1641SHerbert Xu u8 multicast_disabled:1; 224eb1d1641SHerbert Xu 225eb1d1641SHerbert Xu u32 hash_elasticity; 226eb1d1641SHerbert Xu u32 hash_max; 227eb1d1641SHerbert Xu 228eb1d1641SHerbert Xu u32 multicast_last_member_count; 229eb1d1641SHerbert Xu u32 multicast_startup_queries_sent; 230eb1d1641SHerbert Xu u32 multicast_startup_query_count; 231eb1d1641SHerbert Xu 232eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 233eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 234eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 235eb1d1641SHerbert Xu unsigned long multicast_query_interval; 236eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 237eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 238eb1d1641SHerbert Xu 239eb1d1641SHerbert Xu spinlock_t multicast_lock; 240e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 241eb1d1641SHerbert Xu struct hlist_head router_list; 242eb1d1641SHerbert Xu 243eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 244eb1d1641SHerbert Xu struct timer_list multicast_querier_timer; 245eb1d1641SHerbert Xu struct timer_list multicast_query_timer; 246eb1d1641SHerbert Xu #endif 247eb1d1641SHerbert Xu 2481da177e4SLinus Torvalds struct timer_list hello_timer; 2491da177e4SLinus Torvalds struct timer_list tcn_timer; 2501da177e4SLinus Torvalds struct timer_list topology_change_timer; 2511da177e4SLinus Torvalds struct timer_list gc_timer; 25243b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 2531da177e4SLinus Torvalds }; 2541da177e4SLinus Torvalds 25568b7c895SHerbert Xu struct br_input_skb_cb { 25668b7c895SHerbert Xu struct net_device *brdev; 25732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 258eb1d1641SHerbert Xu int igmp; 259eb1d1641SHerbert Xu int mrouters_only; 26032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 26168b7c895SHerbert Xu }; 26268b7c895SHerbert Xu 26368b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 26468b7c895SHerbert Xu 26532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 26632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 26732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 26832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 26932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 27032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 27128a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 27228a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 27328a16c97Sstephen hemminger 27428a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 27528a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 27628a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 27728a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 27828a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 27928a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 28028a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 28128a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 28228a16c97Sstephen hemminger 28328a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 28428a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 28528a16c97Sstephen hemminger 2861da177e4SLinus Torvalds extern struct notifier_block br_device_notifier; 287fda93d92SStephen Hemminger extern const u8 br_group_address[ETH_ALEN]; 2881da177e4SLinus Torvalds 2891da177e4SLinus Torvalds /* called under bridge lock */ 2901da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 2911da177e4SLinus Torvalds { 2921da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 2931da177e4SLinus Torvalds } 2941da177e4SLinus Torvalds 2951da177e4SLinus Torvalds /* br_device.c */ 2961da177e4SLinus Torvalds extern void br_dev_setup(struct net_device *dev); 2976fef4c0cSStephen Hemminger extern netdev_tx_t br_dev_xmit(struct sk_buff *skb, 2986fef4c0cSStephen Hemminger struct net_device *dev); 299cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 30091d2c34aSHerbert Xu static inline struct netpoll_info *br_netpoll_info(struct net_bridge *br) 30191d2c34aSHerbert Xu { 30291d2c34aSHerbert Xu return br->dev->npinfo; 30391d2c34aSHerbert Xu } 304cfb478daSstephen hemminger 30591d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 30691d2c34aSHerbert Xu struct sk_buff *skb) 30791d2c34aSHerbert Xu { 30891d2c34aSHerbert Xu struct netpoll *np = p->np; 30991d2c34aSHerbert Xu 31091d2c34aSHerbert Xu if (np) 31191d2c34aSHerbert Xu netpoll_send_skb(np, skb); 31291d2c34aSHerbert Xu } 31391d2c34aSHerbert Xu 31491d2c34aSHerbert Xu extern int br_netpoll_enable(struct net_bridge_port *p); 31591d2c34aSHerbert Xu extern void br_netpoll_disable(struct net_bridge_port *p); 31691d2c34aSHerbert Xu #else 31791d2c34aSHerbert Xu static inline struct netpoll_info *br_netpoll_info(struct net_bridge *br) 31891d2c34aSHerbert Xu { 31991d2c34aSHerbert Xu return NULL; 32091d2c34aSHerbert Xu } 32191d2c34aSHerbert Xu 3229f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 32391d2c34aSHerbert Xu struct sk_buff *skb) 32491d2c34aSHerbert Xu { 32591d2c34aSHerbert Xu } 32691d2c34aSHerbert Xu 32791d2c34aSHerbert Xu static inline int br_netpoll_enable(struct net_bridge_port *p) 32891d2c34aSHerbert Xu { 32991d2c34aSHerbert Xu return 0; 33091d2c34aSHerbert Xu } 33191d2c34aSHerbert Xu 33291d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 33391d2c34aSHerbert Xu { 33491d2c34aSHerbert Xu } 335cfb478daSstephen hemminger #endif 3361da177e4SLinus Torvalds 3371da177e4SLinus Torvalds /* br_fdb.c */ 33887a596e0SAkinobu Mita extern int br_fdb_init(void); 3391da177e4SLinus Torvalds extern void br_fdb_fini(void); 3409cf63747SStephen Hemminger extern void br_fdb_flush(struct net_bridge *br); 3411da177e4SLinus Torvalds extern void br_fdb_changeaddr(struct net_bridge_port *p, 3421da177e4SLinus Torvalds const unsigned char *newaddr); 3431da177e4SLinus Torvalds extern void br_fdb_cleanup(unsigned long arg); 3441da177e4SLinus Torvalds extern void br_fdb_delete_by_port(struct net_bridge *br, 3451a620698SStephen Hemminger const struct net_bridge_port *p, int do_all); 3461da177e4SLinus Torvalds extern struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, 3471da177e4SLinus Torvalds const unsigned char *addr); 348da678292SMichał Mirosław extern int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 3491da177e4SLinus Torvalds extern int br_fdb_fillbuf(struct net_bridge *br, void *buf, 3501da177e4SLinus Torvalds unsigned long count, unsigned long off); 3511da177e4SLinus Torvalds extern int br_fdb_insert(struct net_bridge *br, 3521da177e4SLinus Torvalds struct net_bridge_port *source, 3531da177e4SLinus Torvalds const unsigned char *addr); 3541da177e4SLinus Torvalds extern void br_fdb_update(struct net_bridge *br, 3551da177e4SLinus Torvalds struct net_bridge_port *source, 3561da177e4SLinus Torvalds const unsigned char *addr); 357b078f0dfSstephen hemminger extern int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb); 3581da177e4SLinus Torvalds 3591da177e4SLinus Torvalds /* br_forward.c */ 3601da177e4SLinus Torvalds extern void br_deliver(const struct net_bridge_port *to, 3611da177e4SLinus Torvalds struct sk_buff *skb); 3621da177e4SLinus Torvalds extern int br_dev_queue_push_xmit(struct sk_buff *skb); 3631da177e4SLinus Torvalds extern void br_forward(const struct net_bridge_port *to, 3647f7708f0SMichael Braun struct sk_buff *skb, struct sk_buff *skb0); 3651da177e4SLinus Torvalds extern int br_forward_finish(struct sk_buff *skb); 366e081e1e3SHerbert Xu extern void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb); 367b33084beSHerbert Xu extern void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, 368b33084beSHerbert Xu struct sk_buff *skb2); 3691da177e4SLinus Torvalds 3701da177e4SLinus Torvalds /* br_if.c */ 371269def7cSStephen Hemminger extern void br_port_carrier_check(struct net_bridge_port *p); 3724aa678baSAlexey Dobriyan extern int br_add_bridge(struct net *net, const char *name); 3734aa678baSAlexey Dobriyan extern int br_del_bridge(struct net *net, const char *name); 374712d6954SAlexey Dobriyan extern void br_net_exit(struct net *net); 3751da177e4SLinus Torvalds extern int br_add_if(struct net_bridge *br, 3761da177e4SLinus Torvalds struct net_device *dev); 3771da177e4SLinus Torvalds extern int br_del_if(struct net_bridge *br, 3781da177e4SLinus Torvalds struct net_device *dev); 3791da177e4SLinus Torvalds extern int br_min_mtu(const struct net_bridge *br); 38081d35307SStephen Hemminger extern void br_features_recompute(struct net_bridge *br); 3811da177e4SLinus Torvalds 3821da177e4SLinus Torvalds /* br_input.c */ 3831da177e4SLinus Torvalds extern int br_handle_frame_finish(struct sk_buff *skb); 3848a4eb573SJiri Pirko extern rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 3851da177e4SLinus Torvalds 3861da177e4SLinus Torvalds /* br_ioctl.c */ 3871da177e4SLinus Torvalds extern int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 388881d966bSEric W. Biederman extern int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __user *arg); 3891da177e4SLinus Torvalds 390eb1d1641SHerbert Xu /* br_multicast.c */ 391eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 392eb1d1641SHerbert Xu extern int br_multicast_rcv(struct net_bridge *br, 393eb1d1641SHerbert Xu struct net_bridge_port *port, 394eb1d1641SHerbert Xu struct sk_buff *skb); 395eb1d1641SHerbert Xu extern struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 396eb1d1641SHerbert Xu struct sk_buff *skb); 397eb1d1641SHerbert Xu extern void br_multicast_add_port(struct net_bridge_port *port); 398eb1d1641SHerbert Xu extern void br_multicast_del_port(struct net_bridge_port *port); 399eb1d1641SHerbert Xu extern void br_multicast_enable_port(struct net_bridge_port *port); 400eb1d1641SHerbert Xu extern void br_multicast_disable_port(struct net_bridge_port *port); 401eb1d1641SHerbert Xu extern void br_multicast_init(struct net_bridge *br); 402eb1d1641SHerbert Xu extern void br_multicast_open(struct net_bridge *br); 403eb1d1641SHerbert Xu extern void br_multicast_stop(struct net_bridge *br); 4045cb5e947SHerbert Xu extern void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 4055cb5e947SHerbert Xu struct sk_buff *skb); 4065cb5e947SHerbert Xu extern void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 4075cb5e947SHerbert Xu struct sk_buff *skb, struct sk_buff *skb2); 4080909e117SHerbert Xu extern int br_multicast_set_router(struct net_bridge *br, unsigned long val); 4090909e117SHerbert Xu extern int br_multicast_set_port_router(struct net_bridge_port *p, 4100909e117SHerbert Xu unsigned long val); 411561f1103SHerbert Xu extern int br_multicast_toggle(struct net_bridge *br, unsigned long val); 412b195167fSHerbert Xu extern int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 41385b35269SSridhar Samudrala 41485b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 41585b35269SSridhar Samudrala { 41685b35269SSridhar Samudrala return br->multicast_router == 2 || 41785b35269SSridhar Samudrala (br->multicast_router == 1 && 41885b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 41985b35269SSridhar Samudrala } 420eb1d1641SHerbert Xu #else 421eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 422eb1d1641SHerbert Xu struct net_bridge_port *port, 423eb1d1641SHerbert Xu struct sk_buff *skb) 424eb1d1641SHerbert Xu { 425eb1d1641SHerbert Xu return 0; 426eb1d1641SHerbert Xu } 427eb1d1641SHerbert Xu 428eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 429eb1d1641SHerbert Xu struct sk_buff *skb) 430eb1d1641SHerbert Xu { 431eb1d1641SHerbert Xu return NULL; 432eb1d1641SHerbert Xu } 433eb1d1641SHerbert Xu 434eb1d1641SHerbert Xu static inline void br_multicast_add_port(struct net_bridge_port *port) 435eb1d1641SHerbert Xu { 436eb1d1641SHerbert Xu } 437eb1d1641SHerbert Xu 438eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 439eb1d1641SHerbert Xu { 440eb1d1641SHerbert Xu } 441eb1d1641SHerbert Xu 442eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 443eb1d1641SHerbert Xu { 444eb1d1641SHerbert Xu } 445eb1d1641SHerbert Xu 446eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 447eb1d1641SHerbert Xu { 448eb1d1641SHerbert Xu } 449eb1d1641SHerbert Xu 450eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 451eb1d1641SHerbert Xu { 452eb1d1641SHerbert Xu } 453eb1d1641SHerbert Xu 454eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 455eb1d1641SHerbert Xu { 456eb1d1641SHerbert Xu } 457eb1d1641SHerbert Xu 458eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 459eb1d1641SHerbert Xu { 460eb1d1641SHerbert Xu } 4615cb5e947SHerbert Xu 4625cb5e947SHerbert Xu static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 4635cb5e947SHerbert Xu struct sk_buff *skb) 4645cb5e947SHerbert Xu { 4655cb5e947SHerbert Xu } 4665cb5e947SHerbert Xu 4675cb5e947SHerbert Xu static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 4685cb5e947SHerbert Xu struct sk_buff *skb, 4695cb5e947SHerbert Xu struct sk_buff *skb2) 4705cb5e947SHerbert Xu { 4715cb5e947SHerbert Xu } 472eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 473eb1d1641SHerbert Xu { 47485b35269SSridhar Samudrala return 0; 475eb1d1641SHerbert Xu } 47685b35269SSridhar Samudrala #endif 477eb1d1641SHerbert Xu 4781da177e4SLinus Torvalds /* br_netfilter.c */ 479c0909713SStephen Hemminger #ifdef CONFIG_BRIDGE_NETFILTER 4801da177e4SLinus Torvalds extern int br_netfilter_init(void); 4811da177e4SLinus Torvalds extern void br_netfilter_fini(void); 4824adf0af6SSimon Wunderlich extern void br_netfilter_rtable_init(struct net_bridge *); 483c0909713SStephen Hemminger #else 484c0909713SStephen Hemminger #define br_netfilter_init() (0) 485c0909713SStephen Hemminger #define br_netfilter_fini() do { } while(0) 4864adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 487c0909713SStephen Hemminger #endif 4881da177e4SLinus Torvalds 4891da177e4SLinus Torvalds /* br_stp.c */ 4901da177e4SLinus Torvalds extern void br_log_state(const struct net_bridge_port *p); 4911da177e4SLinus Torvalds extern struct net_bridge_port *br_get_port(struct net_bridge *br, 4921da177e4SLinus Torvalds u16 port_no); 4931da177e4SLinus Torvalds extern void br_init_port(struct net_bridge_port *p); 4941da177e4SLinus Torvalds extern void br_become_designated_port(struct net_bridge_port *p); 4951da177e4SLinus Torvalds 4961da177e4SLinus Torvalds /* br_stp_if.c */ 4971da177e4SLinus Torvalds extern void br_stp_enable_bridge(struct net_bridge *br); 4981da177e4SLinus Torvalds extern void br_stp_disable_bridge(struct net_bridge *br); 4999cde0708SStephen Hemminger extern void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 5001da177e4SLinus Torvalds extern void br_stp_enable_port(struct net_bridge_port *p); 5011da177e4SLinus Torvalds extern void br_stp_disable_port(struct net_bridge_port *p); 502edf947f1Sstephen hemminger extern bool br_stp_recalculate_bridge_id(struct net_bridge *br); 5034505a3efSStephen Hemminger extern void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 5041da177e4SLinus Torvalds extern void br_stp_set_bridge_priority(struct net_bridge *br, 5051da177e4SLinus Torvalds u16 newprio); 5061da177e4SLinus Torvalds extern void br_stp_set_port_priority(struct net_bridge_port *p, 5071da177e4SLinus Torvalds u8 newprio); 5081da177e4SLinus Torvalds extern void br_stp_set_path_cost(struct net_bridge_port *p, 5091da177e4SLinus Torvalds u32 path_cost); 5101da177e4SLinus Torvalds extern ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 5111da177e4SLinus Torvalds 5121da177e4SLinus Torvalds /* br_stp_bpdu.c */ 5137c85fbf0SPatrick McHardy struct stp_proto; 5147c85fbf0SPatrick McHardy extern void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 5157c85fbf0SPatrick McHardy struct net_device *dev); 5161da177e4SLinus Torvalds 5171da177e4SLinus Torvalds /* br_stp_timer.c */ 5181da177e4SLinus Torvalds extern void br_stp_timer_init(struct net_bridge *br); 5191da177e4SLinus Torvalds extern void br_stp_port_timer_init(struct net_bridge_port *p); 5201da177e4SLinus Torvalds extern unsigned long br_timer_value(const struct timer_list *timer); 5211da177e4SLinus Torvalds 5221da177e4SLinus Torvalds /* br.c */ 523da678292SMichał Mirosław #if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE) 524da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 525da678292SMichał Mirosław #endif 5261da177e4SLinus Torvalds 52711dc1f36SStephen Hemminger /* br_netlink.c */ 52832fe21c0SThomas Graf extern int br_netlink_init(void); 52911dc1f36SStephen Hemminger extern void br_netlink_fini(void); 53011dc1f36SStephen Hemminger extern void br_ifinfo_notify(int event, struct net_bridge_port *port); 53111dc1f36SStephen Hemminger 5321da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 5331da177e4SLinus Torvalds /* br_sysfs_if.c */ 53452cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 5351da177e4SLinus Torvalds extern int br_sysfs_addif(struct net_bridge_port *p); 536e0f43752SSimon Arlott extern int br_sysfs_renameif(struct net_bridge_port *p); 5371da177e4SLinus Torvalds 5381da177e4SLinus Torvalds /* br_sysfs_br.c */ 5391da177e4SLinus Torvalds extern int br_sysfs_addbr(struct net_device *dev); 5401da177e4SLinus Torvalds extern void br_sysfs_delbr(struct net_device *dev); 5411da177e4SLinus Torvalds 5421da177e4SLinus Torvalds #else 5431da177e4SLinus Torvalds 5441da177e4SLinus Torvalds #define br_sysfs_addif(p) (0) 545e0f43752SSimon Arlott #define br_sysfs_renameif(p) (0) 5461da177e4SLinus Torvalds #define br_sysfs_addbr(dev) (0) 5471da177e4SLinus Torvalds #define br_sysfs_delbr(dev) do { } while(0) 5481da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 5491da177e4SLinus Torvalds 5501da177e4SLinus Torvalds #endif 551