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; 671da177e4SLinus Torvalds unsigned long ageing_timer; 681da177e4SLinus Torvalds mac_addr addr; 691da177e4SLinus Torvalds unsigned char is_local; 701da177e4SLinus Torvalds unsigned char is_static; 711da177e4SLinus Torvalds }; 721da177e4SLinus Torvalds 73eb1d1641SHerbert Xu struct net_bridge_port_group { 74eb1d1641SHerbert Xu struct net_bridge_port *port; 75e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 76eb1d1641SHerbert Xu struct hlist_node mglist; 77eb1d1641SHerbert Xu struct rcu_head rcu; 78eb1d1641SHerbert Xu struct timer_list timer; 79eb1d1641SHerbert Xu struct timer_list query_timer; 808ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 81eb1d1641SHerbert Xu u32 queries_sent; 82eb1d1641SHerbert Xu }; 83eb1d1641SHerbert Xu 84eb1d1641SHerbert Xu struct net_bridge_mdb_entry 85eb1d1641SHerbert Xu { 86eb1d1641SHerbert Xu struct hlist_node hlist[2]; 87eb1d1641SHerbert Xu struct net_bridge *br; 88e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 89eb1d1641SHerbert Xu struct rcu_head rcu; 90eb1d1641SHerbert Xu struct timer_list timer; 91eb1d1641SHerbert Xu struct timer_list query_timer; 928ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 938a870178SHerbert Xu bool mglist; 94eb1d1641SHerbert Xu u32 queries_sent; 95eb1d1641SHerbert Xu }; 96eb1d1641SHerbert Xu 97eb1d1641SHerbert Xu struct net_bridge_mdb_htable 98eb1d1641SHerbert Xu { 99eb1d1641SHerbert Xu struct hlist_head *mhash; 100eb1d1641SHerbert Xu struct rcu_head rcu; 101eb1d1641SHerbert Xu struct net_bridge_mdb_htable *old; 102eb1d1641SHerbert Xu u32 size; 103eb1d1641SHerbert Xu u32 max; 104eb1d1641SHerbert Xu u32 secret; 105eb1d1641SHerbert Xu u32 ver; 106eb1d1641SHerbert Xu }; 107eb1d1641SHerbert Xu 1081da177e4SLinus Torvalds struct net_bridge_port 1091da177e4SLinus Torvalds { 1101da177e4SLinus Torvalds struct net_bridge *br; 1111da177e4SLinus Torvalds struct net_device *dev; 1121da177e4SLinus Torvalds struct list_head list; 1131da177e4SLinus Torvalds 1141da177e4SLinus Torvalds /* STP */ 1151da177e4SLinus Torvalds u8 priority; 1161da177e4SLinus Torvalds u8 state; 1171da177e4SLinus Torvalds u16 port_no; 1181da177e4SLinus Torvalds unsigned char topology_change_ack; 1191da177e4SLinus Torvalds unsigned char config_pending; 1201da177e4SLinus Torvalds port_id port_id; 1211da177e4SLinus Torvalds port_id designated_port; 1221da177e4SLinus Torvalds bridge_id designated_root; 1231da177e4SLinus Torvalds bridge_id designated_bridge; 1241da177e4SLinus Torvalds u32 path_cost; 1251da177e4SLinus Torvalds u32 designated_cost; 1261da177e4SLinus Torvalds 1271da177e4SLinus Torvalds struct timer_list forward_delay_timer; 1281da177e4SLinus Torvalds struct timer_list hold_timer; 1291da177e4SLinus Torvalds struct timer_list message_age_timer; 1301da177e4SLinus Torvalds struct kobject kobj; 1311da177e4SLinus Torvalds struct rcu_head rcu; 1323982d3d2SFischer, Anna 1333982d3d2SFischer, Anna unsigned long flags; 1343982d3d2SFischer, Anna #define BR_HAIRPIN_MODE 0x00000001 135eb1d1641SHerbert Xu 136eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 137eb1d1641SHerbert Xu u32 multicast_startup_queries_sent; 138eb1d1641SHerbert Xu unsigned char multicast_router; 139eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 140eb1d1641SHerbert Xu struct timer_list multicast_query_timer; 141eb1d1641SHerbert Xu struct hlist_head mglist; 142eb1d1641SHerbert Xu struct hlist_node rlist; 143eb1d1641SHerbert Xu #endif 144e0f43752SSimon Arlott 145e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 146e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 147e0f43752SSimon Arlott #endif 14891d2c34aSHerbert Xu 14991d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 15091d2c34aSHerbert Xu struct netpoll *np; 15191d2c34aSHerbert Xu #endif 1521da177e4SLinus Torvalds }; 1531da177e4SLinus Torvalds 154f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 155f350a0a8SJiri Pirko 156b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 157b5ed54e9Sstephen hemminger { 158b5ed54e9Sstephen hemminger struct net_bridge_port *port = rcu_dereference(dev->rx_handler_data); 159b5ed54e9Sstephen hemminger return br_port_exists(dev) ? port : NULL; 160b5ed54e9Sstephen hemminger } 161b5ed54e9Sstephen hemminger 162ec1e5610SEric Dumazet static inline struct net_bridge_port *br_port_get_rtnl(struct net_device *dev) 163b5ed54e9Sstephen hemminger { 164ec1e5610SEric Dumazet return br_port_exists(dev) ? 165ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 166b5ed54e9Sstephen hemminger } 167b5ed54e9Sstephen hemminger 1680eae88f3SEric Dumazet struct br_cpu_netstats { 169406818ffSEric Dumazet u64 rx_packets; 170406818ffSEric Dumazet u64 rx_bytes; 171406818ffSEric Dumazet u64 tx_packets; 172406818ffSEric Dumazet u64 tx_bytes; 173406818ffSEric Dumazet struct u64_stats_sync syncp; 1740eae88f3SEric Dumazet }; 1750eae88f3SEric Dumazet 1761da177e4SLinus Torvalds struct net_bridge 1771da177e4SLinus Torvalds { 1781da177e4SLinus Torvalds spinlock_t lock; 1791da177e4SLinus Torvalds struct list_head port_list; 1801da177e4SLinus Torvalds struct net_device *dev; 18114bb4789Sstephen hemminger 1820eae88f3SEric Dumazet struct br_cpu_netstats __percpu *stats; 1831da177e4SLinus Torvalds spinlock_t hash_lock; 1841da177e4SLinus Torvalds struct hlist_head hash[BR_HASH_SIZE]; 18504ed3e74SMichał Mirosław u32 feature_mask; 1864adf0af6SSimon Wunderlich #ifdef CONFIG_BRIDGE_NETFILTER 1874adf0af6SSimon Wunderlich struct rtable fake_rtable; 1884df53d8bSPatrick McHardy bool nf_call_iptables; 1894df53d8bSPatrick McHardy bool nf_call_ip6tables; 1904df53d8bSPatrick McHardy bool nf_call_arptables; 1914adf0af6SSimon Wunderlich #endif 19292c0574fSStephen Hemminger unsigned long flags; 19392c0574fSStephen Hemminger #define BR_SET_MAC_ADDR 0x00000001 1941da177e4SLinus Torvalds 1951da177e4SLinus Torvalds /* STP */ 1961da177e4SLinus Torvalds bridge_id designated_root; 1971da177e4SLinus Torvalds bridge_id bridge_id; 1981da177e4SLinus Torvalds u32 root_path_cost; 1991da177e4SLinus Torvalds unsigned long max_age; 2001da177e4SLinus Torvalds unsigned long hello_time; 2011da177e4SLinus Torvalds unsigned long forward_delay; 2021da177e4SLinus Torvalds unsigned long bridge_max_age; 2031da177e4SLinus Torvalds unsigned long ageing_time; 2041da177e4SLinus Torvalds unsigned long bridge_hello_time; 2051da177e4SLinus Torvalds unsigned long bridge_forward_delay; 2061da177e4SLinus Torvalds 207fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 2081da177e4SLinus Torvalds u16 root_port; 2099cde0708SStephen Hemminger 2109cde0708SStephen Hemminger enum { 2119cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 2129cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 2139cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 2149cde0708SStephen Hemminger } stp_enabled; 2159cde0708SStephen Hemminger 2161da177e4SLinus Torvalds unsigned char topology_change; 2171da177e4SLinus Torvalds unsigned char topology_change_detected; 2181da177e4SLinus Torvalds 219eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 220eb1d1641SHerbert Xu unsigned char multicast_router; 221eb1d1641SHerbert Xu 222eb1d1641SHerbert Xu u8 multicast_disabled:1; 223eb1d1641SHerbert Xu 224eb1d1641SHerbert Xu u32 hash_elasticity; 225eb1d1641SHerbert Xu u32 hash_max; 226eb1d1641SHerbert Xu 227eb1d1641SHerbert Xu u32 multicast_last_member_count; 228eb1d1641SHerbert Xu u32 multicast_startup_queries_sent; 229eb1d1641SHerbert Xu u32 multicast_startup_query_count; 230eb1d1641SHerbert Xu 231eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 232eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 233eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 234eb1d1641SHerbert Xu unsigned long multicast_query_interval; 235eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 236eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 237eb1d1641SHerbert Xu 238eb1d1641SHerbert Xu spinlock_t multicast_lock; 239e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 240eb1d1641SHerbert Xu struct hlist_head router_list; 241eb1d1641SHerbert Xu 242eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 243eb1d1641SHerbert Xu struct timer_list multicast_querier_timer; 244eb1d1641SHerbert Xu struct timer_list multicast_query_timer; 245eb1d1641SHerbert Xu #endif 246eb1d1641SHerbert Xu 2471da177e4SLinus Torvalds struct timer_list hello_timer; 2481da177e4SLinus Torvalds struct timer_list tcn_timer; 2491da177e4SLinus Torvalds struct timer_list topology_change_timer; 2501da177e4SLinus Torvalds struct timer_list gc_timer; 25143b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 2521da177e4SLinus Torvalds }; 2531da177e4SLinus Torvalds 25468b7c895SHerbert Xu struct br_input_skb_cb { 25568b7c895SHerbert Xu struct net_device *brdev; 25632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 257eb1d1641SHerbert Xu int igmp; 258eb1d1641SHerbert Xu int mrouters_only; 25932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 26068b7c895SHerbert Xu }; 26168b7c895SHerbert Xu 26268b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 26368b7c895SHerbert Xu 26432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 26532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 26632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 26732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 26832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 26932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 27028a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 27128a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 27228a16c97Sstephen hemminger 27328a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 27428a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 27528a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 27628a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 27728a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 27828a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 27928a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 28028a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 28128a16c97Sstephen hemminger 28228a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 28328a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 28428a16c97Sstephen hemminger 2851da177e4SLinus Torvalds extern struct notifier_block br_device_notifier; 286fda93d92SStephen Hemminger extern const u8 br_group_address[ETH_ALEN]; 2871da177e4SLinus Torvalds 2881da177e4SLinus Torvalds /* called under bridge lock */ 2891da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 2901da177e4SLinus Torvalds { 2911da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 2921da177e4SLinus Torvalds } 2931da177e4SLinus Torvalds 2941da177e4SLinus Torvalds /* br_device.c */ 2951da177e4SLinus Torvalds extern void br_dev_setup(struct net_device *dev); 2966fef4c0cSStephen Hemminger extern netdev_tx_t br_dev_xmit(struct sk_buff *skb, 2976fef4c0cSStephen Hemminger struct net_device *dev); 298cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 29991d2c34aSHerbert Xu static inline struct netpoll_info *br_netpoll_info(struct net_bridge *br) 30091d2c34aSHerbert Xu { 30191d2c34aSHerbert Xu return br->dev->npinfo; 30291d2c34aSHerbert Xu } 303cfb478daSstephen hemminger 30491d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 30591d2c34aSHerbert Xu struct sk_buff *skb) 30691d2c34aSHerbert Xu { 30791d2c34aSHerbert Xu struct netpoll *np = p->np; 30891d2c34aSHerbert Xu 30991d2c34aSHerbert Xu if (np) 31091d2c34aSHerbert Xu netpoll_send_skb(np, skb); 31191d2c34aSHerbert Xu } 31291d2c34aSHerbert Xu 31391d2c34aSHerbert Xu extern int br_netpoll_enable(struct net_bridge_port *p); 31491d2c34aSHerbert Xu extern void br_netpoll_disable(struct net_bridge_port *p); 31591d2c34aSHerbert Xu #else 31691d2c34aSHerbert Xu static inline struct netpoll_info *br_netpoll_info(struct net_bridge *br) 31791d2c34aSHerbert Xu { 31891d2c34aSHerbert Xu return NULL; 31991d2c34aSHerbert Xu } 32091d2c34aSHerbert Xu 3219f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 32291d2c34aSHerbert Xu struct sk_buff *skb) 32391d2c34aSHerbert Xu { 32491d2c34aSHerbert Xu } 32591d2c34aSHerbert Xu 32691d2c34aSHerbert Xu static inline int br_netpoll_enable(struct net_bridge_port *p) 32791d2c34aSHerbert Xu { 32891d2c34aSHerbert Xu return 0; 32991d2c34aSHerbert Xu } 33091d2c34aSHerbert Xu 33191d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 33291d2c34aSHerbert Xu { 33391d2c34aSHerbert Xu } 334cfb478daSstephen hemminger #endif 3351da177e4SLinus Torvalds 3361da177e4SLinus Torvalds /* br_fdb.c */ 33787a596e0SAkinobu Mita extern int br_fdb_init(void); 3381da177e4SLinus Torvalds extern void br_fdb_fini(void); 3399cf63747SStephen Hemminger extern void br_fdb_flush(struct net_bridge *br); 3401da177e4SLinus Torvalds extern void br_fdb_changeaddr(struct net_bridge_port *p, 3411da177e4SLinus Torvalds const unsigned char *newaddr); 3421da177e4SLinus Torvalds extern void br_fdb_cleanup(unsigned long arg); 3431da177e4SLinus Torvalds extern void br_fdb_delete_by_port(struct net_bridge *br, 3441a620698SStephen Hemminger const struct net_bridge_port *p, int do_all); 3451da177e4SLinus Torvalds extern struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, 3461da177e4SLinus Torvalds const unsigned char *addr); 347da678292SMichał Mirosław extern int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 3481da177e4SLinus Torvalds extern int br_fdb_fillbuf(struct net_bridge *br, void *buf, 3491da177e4SLinus Torvalds unsigned long count, unsigned long off); 3501da177e4SLinus Torvalds extern int br_fdb_insert(struct net_bridge *br, 3511da177e4SLinus Torvalds struct net_bridge_port *source, 3521da177e4SLinus Torvalds const unsigned char *addr); 3531da177e4SLinus Torvalds extern void br_fdb_update(struct net_bridge *br, 3541da177e4SLinus Torvalds struct net_bridge_port *source, 3551da177e4SLinus Torvalds const unsigned char *addr); 3561da177e4SLinus Torvalds 3571da177e4SLinus Torvalds /* br_forward.c */ 3581da177e4SLinus Torvalds extern void br_deliver(const struct net_bridge_port *to, 3591da177e4SLinus Torvalds struct sk_buff *skb); 3601da177e4SLinus Torvalds extern int br_dev_queue_push_xmit(struct sk_buff *skb); 3611da177e4SLinus Torvalds extern void br_forward(const struct net_bridge_port *to, 3627f7708f0SMichael Braun struct sk_buff *skb, struct sk_buff *skb0); 3631da177e4SLinus Torvalds extern int br_forward_finish(struct sk_buff *skb); 364e081e1e3SHerbert Xu extern void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb); 365b33084beSHerbert Xu extern void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, 366b33084beSHerbert Xu struct sk_buff *skb2); 3671da177e4SLinus Torvalds 3681da177e4SLinus Torvalds /* br_if.c */ 369269def7cSStephen Hemminger extern void br_port_carrier_check(struct net_bridge_port *p); 3704aa678baSAlexey Dobriyan extern int br_add_bridge(struct net *net, const char *name); 3714aa678baSAlexey Dobriyan extern int br_del_bridge(struct net *net, const char *name); 372712d6954SAlexey Dobriyan extern void br_net_exit(struct net *net); 3731da177e4SLinus Torvalds extern int br_add_if(struct net_bridge *br, 3741da177e4SLinus Torvalds struct net_device *dev); 3751da177e4SLinus Torvalds extern int br_del_if(struct net_bridge *br, 3761da177e4SLinus Torvalds struct net_device *dev); 3771da177e4SLinus Torvalds extern int br_min_mtu(const struct net_bridge *br); 37881d35307SStephen Hemminger extern void br_features_recompute(struct net_bridge *br); 3791da177e4SLinus Torvalds 3801da177e4SLinus Torvalds /* br_input.c */ 3811da177e4SLinus Torvalds extern int br_handle_frame_finish(struct sk_buff *skb); 3828a4eb573SJiri Pirko extern rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 3831da177e4SLinus Torvalds 3841da177e4SLinus Torvalds /* br_ioctl.c */ 3851da177e4SLinus Torvalds extern int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 386881d966bSEric W. Biederman extern int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __user *arg); 3871da177e4SLinus Torvalds 388eb1d1641SHerbert Xu /* br_multicast.c */ 389eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 390eb1d1641SHerbert Xu extern int br_multicast_rcv(struct net_bridge *br, 391eb1d1641SHerbert Xu struct net_bridge_port *port, 392eb1d1641SHerbert Xu struct sk_buff *skb); 393eb1d1641SHerbert Xu extern struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 394eb1d1641SHerbert Xu struct sk_buff *skb); 395eb1d1641SHerbert Xu extern void br_multicast_add_port(struct net_bridge_port *port); 396eb1d1641SHerbert Xu extern void br_multicast_del_port(struct net_bridge_port *port); 397eb1d1641SHerbert Xu extern void br_multicast_enable_port(struct net_bridge_port *port); 398eb1d1641SHerbert Xu extern void br_multicast_disable_port(struct net_bridge_port *port); 399eb1d1641SHerbert Xu extern void br_multicast_init(struct net_bridge *br); 400eb1d1641SHerbert Xu extern void br_multicast_open(struct net_bridge *br); 401eb1d1641SHerbert Xu extern void br_multicast_stop(struct net_bridge *br); 4025cb5e947SHerbert Xu extern void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 4035cb5e947SHerbert Xu struct sk_buff *skb); 4045cb5e947SHerbert Xu extern void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 4055cb5e947SHerbert Xu struct sk_buff *skb, struct sk_buff *skb2); 4060909e117SHerbert Xu extern int br_multicast_set_router(struct net_bridge *br, unsigned long val); 4070909e117SHerbert Xu extern int br_multicast_set_port_router(struct net_bridge_port *p, 4080909e117SHerbert Xu unsigned long val); 409561f1103SHerbert Xu extern int br_multicast_toggle(struct net_bridge *br, unsigned long val); 410b195167fSHerbert Xu extern int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 41185b35269SSridhar Samudrala 41285b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 41385b35269SSridhar Samudrala { 41485b35269SSridhar Samudrala return br->multicast_router == 2 || 41585b35269SSridhar Samudrala (br->multicast_router == 1 && 41685b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 41785b35269SSridhar Samudrala } 418eb1d1641SHerbert Xu #else 419eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 420eb1d1641SHerbert Xu struct net_bridge_port *port, 421eb1d1641SHerbert Xu struct sk_buff *skb) 422eb1d1641SHerbert Xu { 423eb1d1641SHerbert Xu return 0; 424eb1d1641SHerbert Xu } 425eb1d1641SHerbert Xu 426eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 427eb1d1641SHerbert Xu struct sk_buff *skb) 428eb1d1641SHerbert Xu { 429eb1d1641SHerbert Xu return NULL; 430eb1d1641SHerbert Xu } 431eb1d1641SHerbert Xu 432eb1d1641SHerbert Xu static inline void br_multicast_add_port(struct net_bridge_port *port) 433eb1d1641SHerbert Xu { 434eb1d1641SHerbert Xu } 435eb1d1641SHerbert Xu 436eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 437eb1d1641SHerbert Xu { 438eb1d1641SHerbert Xu } 439eb1d1641SHerbert Xu 440eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 441eb1d1641SHerbert Xu { 442eb1d1641SHerbert Xu } 443eb1d1641SHerbert Xu 444eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 445eb1d1641SHerbert Xu { 446eb1d1641SHerbert Xu } 447eb1d1641SHerbert Xu 448eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 449eb1d1641SHerbert Xu { 450eb1d1641SHerbert Xu } 451eb1d1641SHerbert Xu 452eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 453eb1d1641SHerbert Xu { 454eb1d1641SHerbert Xu } 455eb1d1641SHerbert Xu 456eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 457eb1d1641SHerbert Xu { 458eb1d1641SHerbert Xu } 4595cb5e947SHerbert Xu 4605cb5e947SHerbert Xu static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 4615cb5e947SHerbert Xu struct sk_buff *skb) 4625cb5e947SHerbert Xu { 4635cb5e947SHerbert Xu } 4645cb5e947SHerbert Xu 4655cb5e947SHerbert Xu static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 4665cb5e947SHerbert Xu struct sk_buff *skb, 4675cb5e947SHerbert Xu struct sk_buff *skb2) 4685cb5e947SHerbert Xu { 4695cb5e947SHerbert Xu } 470eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 471eb1d1641SHerbert Xu { 47285b35269SSridhar Samudrala return 0; 473eb1d1641SHerbert Xu } 47485b35269SSridhar Samudrala #endif 475eb1d1641SHerbert Xu 4761da177e4SLinus Torvalds /* br_netfilter.c */ 477c0909713SStephen Hemminger #ifdef CONFIG_BRIDGE_NETFILTER 4781da177e4SLinus Torvalds extern int br_netfilter_init(void); 4791da177e4SLinus Torvalds extern void br_netfilter_fini(void); 4804adf0af6SSimon Wunderlich extern void br_netfilter_rtable_init(struct net_bridge *); 481c0909713SStephen Hemminger #else 482c0909713SStephen Hemminger #define br_netfilter_init() (0) 483c0909713SStephen Hemminger #define br_netfilter_fini() do { } while(0) 4844adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 485c0909713SStephen Hemminger #endif 4861da177e4SLinus Torvalds 4871da177e4SLinus Torvalds /* br_stp.c */ 4881da177e4SLinus Torvalds extern void br_log_state(const struct net_bridge_port *p); 4891da177e4SLinus Torvalds extern struct net_bridge_port *br_get_port(struct net_bridge *br, 4901da177e4SLinus Torvalds u16 port_no); 4911da177e4SLinus Torvalds extern void br_init_port(struct net_bridge_port *p); 4921da177e4SLinus Torvalds extern void br_become_designated_port(struct net_bridge_port *p); 4931da177e4SLinus Torvalds 4941da177e4SLinus Torvalds /* br_stp_if.c */ 4951da177e4SLinus Torvalds extern void br_stp_enable_bridge(struct net_bridge *br); 4961da177e4SLinus Torvalds extern void br_stp_disable_bridge(struct net_bridge *br); 4979cde0708SStephen Hemminger extern void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 4981da177e4SLinus Torvalds extern void br_stp_enable_port(struct net_bridge_port *p); 4991da177e4SLinus Torvalds extern void br_stp_disable_port(struct net_bridge_port *p); 5001da177e4SLinus Torvalds extern void br_stp_recalculate_bridge_id(struct net_bridge *br); 5014505a3efSStephen Hemminger extern void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 5021da177e4SLinus Torvalds extern void br_stp_set_bridge_priority(struct net_bridge *br, 5031da177e4SLinus Torvalds u16 newprio); 5041da177e4SLinus Torvalds extern void br_stp_set_port_priority(struct net_bridge_port *p, 5051da177e4SLinus Torvalds u8 newprio); 5061da177e4SLinus Torvalds extern void br_stp_set_path_cost(struct net_bridge_port *p, 5071da177e4SLinus Torvalds u32 path_cost); 5081da177e4SLinus Torvalds extern ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 5091da177e4SLinus Torvalds 5101da177e4SLinus Torvalds /* br_stp_bpdu.c */ 5117c85fbf0SPatrick McHardy struct stp_proto; 5127c85fbf0SPatrick McHardy extern void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 5137c85fbf0SPatrick McHardy struct net_device *dev); 5141da177e4SLinus Torvalds 5151da177e4SLinus Torvalds /* br_stp_timer.c */ 5161da177e4SLinus Torvalds extern void br_stp_timer_init(struct net_bridge *br); 5171da177e4SLinus Torvalds extern void br_stp_port_timer_init(struct net_bridge_port *p); 5181da177e4SLinus Torvalds extern unsigned long br_timer_value(const struct timer_list *timer); 5191da177e4SLinus Torvalds 5201da177e4SLinus Torvalds /* br.c */ 521da678292SMichał Mirosław #if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE) 522da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 523da678292SMichał Mirosław #endif 5241da177e4SLinus Torvalds 52511dc1f36SStephen Hemminger /* br_netlink.c */ 52632fe21c0SThomas Graf extern int br_netlink_init(void); 52711dc1f36SStephen Hemminger extern void br_netlink_fini(void); 52811dc1f36SStephen Hemminger extern void br_ifinfo_notify(int event, struct net_bridge_port *port); 52911dc1f36SStephen Hemminger 5301da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 5311da177e4SLinus Torvalds /* br_sysfs_if.c */ 53252cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 5331da177e4SLinus Torvalds extern int br_sysfs_addif(struct net_bridge_port *p); 534e0f43752SSimon Arlott extern int br_sysfs_renameif(struct net_bridge_port *p); 5351da177e4SLinus Torvalds 5361da177e4SLinus Torvalds /* br_sysfs_br.c */ 5371da177e4SLinus Torvalds extern int br_sysfs_addbr(struct net_device *dev); 5381da177e4SLinus Torvalds extern void br_sysfs_delbr(struct net_device *dev); 5391da177e4SLinus Torvalds 5401da177e4SLinus Torvalds #else 5411da177e4SLinus Torvalds 5421da177e4SLinus Torvalds #define br_sysfs_addif(p) (0) 543e0f43752SSimon Arlott #define br_sysfs_renameif(p) (0) 5441da177e4SLinus Torvalds #define br_sysfs_addbr(dev) (0) 5451da177e4SLinus Torvalds #define br_sysfs_delbr(dev) do { } while(0) 5461da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 5471da177e4SLinus Torvalds 5481da177e4SLinus Torvalds #endif 549