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]; 49e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 501da177e4SLinus Torvalds }; 511da177e4SLinus Torvalds 521da177e4SLinus Torvalds struct mac_addr 531da177e4SLinus Torvalds { 54e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 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 69cc0fdd80SLinus Lüssing #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 70cc0fdd80SLinus Lüssing /* our own querier */ 71cc0fdd80SLinus Lüssing struct bridge_mcast_query { 72cc0fdd80SLinus Lüssing struct timer_list timer; 73cc0fdd80SLinus Lüssing u32 startup_sent; 74cc0fdd80SLinus Lüssing }; 75cc0fdd80SLinus Lüssing 76cc0fdd80SLinus Lüssing /* other querier */ 77cc0fdd80SLinus Lüssing struct bridge_mcast_querier { 78cc0fdd80SLinus Lüssing struct timer_list timer; 79cc0fdd80SLinus Lüssing unsigned long delay_time; 80cc0fdd80SLinus Lüssing }; 81cc0fdd80SLinus Lüssing #endif 82cc0fdd80SLinus Lüssing 83243a2e63SVlad Yasevich struct net_port_vlans { 84243a2e63SVlad Yasevich u16 port_idx; 8578851988SVlad Yasevich u16 pvid; 86243a2e63SVlad Yasevich union { 87243a2e63SVlad Yasevich struct net_bridge_port *port; 88243a2e63SVlad Yasevich struct net_bridge *br; 89243a2e63SVlad Yasevich } parent; 90243a2e63SVlad Yasevich struct rcu_head rcu; 91243a2e63SVlad Yasevich unsigned long vlan_bitmap[BR_VLAN_BITMAP_LEN]; 9235e03f3aSVlad Yasevich unsigned long untagged_bitmap[BR_VLAN_BITMAP_LEN]; 936cbdceebSVlad Yasevich u16 num_vlans; 94243a2e63SVlad Yasevich }; 95243a2e63SVlad Yasevich 961da177e4SLinus Torvalds struct net_bridge_fdb_entry 971da177e4SLinus Torvalds { 981da177e4SLinus Torvalds struct hlist_node hlist; 991da177e4SLinus Torvalds struct net_bridge_port *dst; 1001da177e4SLinus Torvalds 1011da177e4SLinus Torvalds struct rcu_head rcu; 1027cd8861aSstephen hemminger unsigned long updated; 1037cd8861aSstephen hemminger unsigned long used; 1041da177e4SLinus Torvalds mac_addr addr; 1051da177e4SLinus Torvalds unsigned char is_local; 1061da177e4SLinus Torvalds unsigned char is_static; 107a5642ab4SToshiaki Makita unsigned char added_by_user; 1082ba071ecSVlad Yasevich __u16 vlan_id; 1091da177e4SLinus Torvalds }; 1101da177e4SLinus Torvalds 111eb1d1641SHerbert Xu struct net_bridge_port_group { 112eb1d1641SHerbert Xu struct net_bridge_port *port; 113e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 114eb1d1641SHerbert Xu struct hlist_node mglist; 115eb1d1641SHerbert Xu struct rcu_head rcu; 116eb1d1641SHerbert Xu struct timer_list timer; 1178ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 118ccb1c31aSAmerigo Wang unsigned char state; 119eb1d1641SHerbert Xu }; 120eb1d1641SHerbert Xu 121eb1d1641SHerbert Xu struct net_bridge_mdb_entry 122eb1d1641SHerbert Xu { 123eb1d1641SHerbert Xu struct hlist_node hlist[2]; 124eb1d1641SHerbert Xu struct net_bridge *br; 125e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 126eb1d1641SHerbert Xu struct rcu_head rcu; 127eb1d1641SHerbert Xu struct timer_list timer; 1288ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 1298a870178SHerbert Xu bool mglist; 130eb1d1641SHerbert Xu }; 131eb1d1641SHerbert Xu 132eb1d1641SHerbert Xu struct net_bridge_mdb_htable 133eb1d1641SHerbert Xu { 134eb1d1641SHerbert Xu struct hlist_head *mhash; 135eb1d1641SHerbert Xu struct rcu_head rcu; 136eb1d1641SHerbert Xu struct net_bridge_mdb_htable *old; 137eb1d1641SHerbert Xu u32 size; 138eb1d1641SHerbert Xu u32 max; 139eb1d1641SHerbert Xu u32 secret; 140eb1d1641SHerbert Xu u32 ver; 141eb1d1641SHerbert Xu }; 142eb1d1641SHerbert Xu 1431da177e4SLinus Torvalds struct net_bridge_port 1441da177e4SLinus Torvalds { 1451da177e4SLinus Torvalds struct net_bridge *br; 1461da177e4SLinus Torvalds struct net_device *dev; 1471da177e4SLinus Torvalds struct list_head list; 1481da177e4SLinus Torvalds 1491da177e4SLinus Torvalds /* STP */ 1501da177e4SLinus Torvalds u8 priority; 1511da177e4SLinus Torvalds u8 state; 1521da177e4SLinus Torvalds u16 port_no; 1531da177e4SLinus Torvalds unsigned char topology_change_ack; 1541da177e4SLinus Torvalds unsigned char config_pending; 1551da177e4SLinus Torvalds port_id port_id; 1561da177e4SLinus Torvalds port_id designated_port; 1571da177e4SLinus Torvalds bridge_id designated_root; 1581da177e4SLinus Torvalds bridge_id designated_bridge; 1591da177e4SLinus Torvalds u32 path_cost; 1601da177e4SLinus Torvalds u32 designated_cost; 1610c03150eSstephen hemminger unsigned long designated_age; 1621da177e4SLinus Torvalds 1631da177e4SLinus Torvalds struct timer_list forward_delay_timer; 1641da177e4SLinus Torvalds struct timer_list hold_timer; 1651da177e4SLinus Torvalds struct timer_list message_age_timer; 1661da177e4SLinus Torvalds struct kobject kobj; 1671da177e4SLinus Torvalds struct rcu_head rcu; 1683982d3d2SFischer, Anna 1693982d3d2SFischer, Anna unsigned long flags; 1703982d3d2SFischer, Anna #define BR_HAIRPIN_MODE 0x00000001 171a2e01a65Sstephen hemminger #define BR_BPDU_GUARD 0x00000002 1721007dd1aSstephen hemminger #define BR_ROOT_BLOCK 0x00000004 173c2d3babfSDavid S. Miller #define BR_MULTICAST_FAST_LEAVE 0x00000008 1748f3359bdSstephen hemminger #define BR_ADMIN_COST 0x00000010 1759ba18891SVlad Yasevich #define BR_LEARNING 0x00000020 176867a5943SVlad Yasevich #define BR_FLOOD 0x00000040 177eb1d1641SHerbert Xu 178eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 179cc0fdd80SLinus Lüssing struct bridge_mcast_query ip4_query; 180cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 181cc0fdd80SLinus Lüssing struct bridge_mcast_query ip6_query; 182cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 183eb1d1641SHerbert Xu unsigned char multicast_router; 184eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 185eb1d1641SHerbert Xu struct hlist_head mglist; 186eb1d1641SHerbert Xu struct hlist_node rlist; 187eb1d1641SHerbert Xu #endif 188e0f43752SSimon Arlott 189e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 190e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 191e0f43752SSimon Arlott #endif 19291d2c34aSHerbert Xu 19391d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 19491d2c34aSHerbert Xu struct netpoll *np; 19591d2c34aSHerbert Xu #endif 196243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 197243a2e63SVlad Yasevich struct net_port_vlans __rcu *vlan_info; 198243a2e63SVlad Yasevich #endif 1991da177e4SLinus Torvalds }; 2001da177e4SLinus Torvalds 201f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 202f350a0a8SJiri Pirko 203b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 204b5ed54e9Sstephen hemminger { 205716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 206b5ed54e9Sstephen hemminger } 207b5ed54e9Sstephen hemminger 2081fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 209b5ed54e9Sstephen hemminger { 210ec1e5610SEric Dumazet return br_port_exists(dev) ? 211ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 212b5ed54e9Sstephen hemminger } 213b5ed54e9Sstephen hemminger 2141da177e4SLinus Torvalds struct net_bridge 2151da177e4SLinus Torvalds { 2161da177e4SLinus Torvalds spinlock_t lock; 2171da177e4SLinus Torvalds struct list_head port_list; 2181da177e4SLinus Torvalds struct net_device *dev; 21914bb4789Sstephen hemminger 2208f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 2211da177e4SLinus Torvalds spinlock_t hash_lock; 2221da177e4SLinus Torvalds struct hlist_head hash[BR_HASH_SIZE]; 2234adf0af6SSimon Wunderlich #ifdef CONFIG_BRIDGE_NETFILTER 2244adf0af6SSimon Wunderlich struct rtable fake_rtable; 2254df53d8bSPatrick McHardy bool nf_call_iptables; 2264df53d8bSPatrick McHardy bool nf_call_ip6tables; 2274df53d8bSPatrick McHardy bool nf_call_arptables; 2284adf0af6SSimon Wunderlich #endif 229515853ccSstephen hemminger u16 group_fwd_mask; 230515853ccSstephen hemminger 2311da177e4SLinus Torvalds /* STP */ 2321da177e4SLinus Torvalds bridge_id designated_root; 2331da177e4SLinus Torvalds bridge_id bridge_id; 2341da177e4SLinus Torvalds u32 root_path_cost; 2351da177e4SLinus Torvalds unsigned long max_age; 2361da177e4SLinus Torvalds unsigned long hello_time; 2371da177e4SLinus Torvalds unsigned long forward_delay; 2381da177e4SLinus Torvalds unsigned long bridge_max_age; 2391da177e4SLinus Torvalds unsigned long ageing_time; 2401da177e4SLinus Torvalds unsigned long bridge_hello_time; 2411da177e4SLinus Torvalds unsigned long bridge_forward_delay; 2421da177e4SLinus Torvalds 243fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 2441da177e4SLinus Torvalds u16 root_port; 2459cde0708SStephen Hemminger 2469cde0708SStephen Hemminger enum { 2479cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 2489cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 2499cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 2509cde0708SStephen Hemminger } stp_enabled; 2519cde0708SStephen Hemminger 2521da177e4SLinus Torvalds unsigned char topology_change; 2531da177e4SLinus Torvalds unsigned char topology_change_detected; 2541da177e4SLinus Torvalds 255eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 256eb1d1641SHerbert Xu unsigned char multicast_router; 257eb1d1641SHerbert Xu 258eb1d1641SHerbert Xu u8 multicast_disabled:1; 259c5c23260SHerbert Xu u8 multicast_querier:1; 2601c8ad5bfSCong Wang u8 multicast_query_use_ifaddr:1; 261eb1d1641SHerbert Xu 262eb1d1641SHerbert Xu u32 hash_elasticity; 263eb1d1641SHerbert Xu u32 hash_max; 264eb1d1641SHerbert Xu 265eb1d1641SHerbert Xu u32 multicast_last_member_count; 266eb1d1641SHerbert Xu u32 multicast_startup_query_count; 267eb1d1641SHerbert Xu 268eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 269eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 270eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 271eb1d1641SHerbert Xu unsigned long multicast_query_interval; 272eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 273eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 274eb1d1641SHerbert Xu 275eb1d1641SHerbert Xu spinlock_t multicast_lock; 276e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 277eb1d1641SHerbert Xu struct hlist_head router_list; 278eb1d1641SHerbert Xu 279eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 280cc0fdd80SLinus Lüssing struct bridge_mcast_querier ip4_querier; 281cc0fdd80SLinus Lüssing struct bridge_mcast_query ip4_query; 282cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 283cc0fdd80SLinus Lüssing struct bridge_mcast_querier ip6_querier; 284cc0fdd80SLinus Lüssing struct bridge_mcast_query ip6_query; 285cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 286eb1d1641SHerbert Xu #endif 287eb1d1641SHerbert Xu 2881da177e4SLinus Torvalds struct timer_list hello_timer; 2891da177e4SLinus Torvalds struct timer_list tcn_timer; 2901da177e4SLinus Torvalds struct timer_list topology_change_timer; 2911da177e4SLinus Torvalds struct timer_list gc_timer; 29243b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 293243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 294243a2e63SVlad Yasevich u8 vlan_enabled; 295243a2e63SVlad Yasevich struct net_port_vlans __rcu *vlan_info; 296243a2e63SVlad Yasevich #endif 2971da177e4SLinus Torvalds }; 2981da177e4SLinus Torvalds 29968b7c895SHerbert Xu struct br_input_skb_cb { 30068b7c895SHerbert Xu struct net_device *brdev; 30132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 302eb1d1641SHerbert Xu int igmp; 303eb1d1641SHerbert Xu int mrouters_only; 30432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 30568b7c895SHerbert Xu }; 30668b7c895SHerbert Xu 30768b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 30868b7c895SHerbert Xu 30932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 31032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 31132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 31232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 31332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 31432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 31528a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 31628a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 31728a16c97Sstephen hemminger 31828a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 31928a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 32028a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 32128a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 32228a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 32328a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 32428a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 32528a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 32628a16c97Sstephen hemminger 32728a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 32828a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 32928a16c97Sstephen hemminger 3301da177e4SLinus Torvalds extern struct notifier_block br_device_notifier; 3311da177e4SLinus Torvalds 3321da177e4SLinus Torvalds /* called under bridge lock */ 3331da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 3341da177e4SLinus Torvalds { 3351da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 3361da177e4SLinus Torvalds } 3371da177e4SLinus Torvalds 3381da177e4SLinus Torvalds /* br_device.c */ 339348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 340348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 341348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 342cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 34391d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 34491d2c34aSHerbert Xu struct sk_buff *skb) 34591d2c34aSHerbert Xu { 34691d2c34aSHerbert Xu struct netpoll *np = p->np; 34791d2c34aSHerbert Xu 34891d2c34aSHerbert Xu if (np) 34991d2c34aSHerbert Xu netpoll_send_skb(np, skb); 35091d2c34aSHerbert Xu } 35191d2c34aSHerbert Xu 352348662a1SJoe Perches int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp); 353348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 35491d2c34aSHerbert Xu #else 3559f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 35691d2c34aSHerbert Xu struct sk_buff *skb) 35791d2c34aSHerbert Xu { 35891d2c34aSHerbert Xu } 35991d2c34aSHerbert Xu 36047be03a2SAmerigo Wang static inline int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp) 36191d2c34aSHerbert Xu { 36291d2c34aSHerbert Xu return 0; 36391d2c34aSHerbert Xu } 36491d2c34aSHerbert Xu 36591d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 36691d2c34aSHerbert Xu { 36791d2c34aSHerbert Xu } 368cfb478daSstephen hemminger #endif 3691da177e4SLinus Torvalds 3701da177e4SLinus Torvalds /* br_fdb.c */ 371348662a1SJoe Perches int br_fdb_init(void); 372348662a1SJoe Perches void br_fdb_fini(void); 373348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 374424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 375424bb9c9SToshiaki Makita const struct net_bridge_port *p, 376424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 377348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 378348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 379348662a1SJoe Perches void br_fdb_cleanup(unsigned long arg); 380348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 3811a620698SStephen Hemminger const struct net_bridge_port *p, int do_all); 382348662a1SJoe Perches struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, 383348662a1SJoe Perches const unsigned char *addr, __u16 vid); 384348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 385348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 386348662a1SJoe Perches unsigned long off); 387348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 388348662a1SJoe Perches const unsigned char *addr, u16 vid); 389348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 390a5642ab4SToshiaki Makita const unsigned char *addr, u16 vid, bool added_by_user); 39177162022SJohn Fastabend 392348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 393348662a1SJoe Perches struct net_device *dev, const unsigned char *addr); 394348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 395348662a1SJoe Perches const unsigned char *addr, u16 nlh_flags); 396348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 397348662a1SJoe Perches struct net_device *dev, int idx); 3981da177e4SLinus Torvalds 3991da177e4SLinus Torvalds /* br_forward.c */ 400348662a1SJoe Perches void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb); 401348662a1SJoe Perches int br_dev_queue_push_xmit(struct sk_buff *skb); 402348662a1SJoe Perches void br_forward(const struct net_bridge_port *to, 4037f7708f0SMichael Braun struct sk_buff *skb, struct sk_buff *skb0); 404348662a1SJoe Perches int br_forward_finish(struct sk_buff *skb); 405348662a1SJoe Perches void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast); 406348662a1SJoe Perches void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, 407867a5943SVlad Yasevich struct sk_buff *skb2, bool unicast); 4081da177e4SLinus Torvalds 4091da177e4SLinus Torvalds /* br_if.c */ 410348662a1SJoe Perches void br_port_carrier_check(struct net_bridge_port *p); 411348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 412348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 413348662a1SJoe Perches int br_add_if(struct net_bridge *br, struct net_device *dev); 414348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 415348662a1SJoe Perches int br_min_mtu(const struct net_bridge *br); 416348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 417c8f44affSMichał Mirosław netdev_features_t features); 4181da177e4SLinus Torvalds 4191da177e4SLinus Torvalds /* br_input.c */ 420348662a1SJoe Perches int br_handle_frame_finish(struct sk_buff *skb); 421348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 4221da177e4SLinus Torvalds 423859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 424859828c0SJiri Pirko { 425859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 426859828c0SJiri Pirko } 427859828c0SJiri Pirko 428859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 429859828c0SJiri Pirko { 430859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 431859828c0SJiri Pirko } 432859828c0SJiri Pirko 4331da177e4SLinus Torvalds /* br_ioctl.c */ 434348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 435348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 436348662a1SJoe Perches void __user *arg); 4371da177e4SLinus Torvalds 438eb1d1641SHerbert Xu /* br_multicast.c */ 439eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 4402ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 441348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 442fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 443348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 444eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 445348662a1SJoe Perches void br_multicast_add_port(struct net_bridge_port *port); 446348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 447348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 448348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 449348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 450348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 451348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 452348662a1SJoe Perches void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 4535cb5e947SHerbert Xu struct sk_buff *skb); 454348662a1SJoe Perches void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 4555cb5e947SHerbert Xu struct sk_buff *skb, struct sk_buff *skb2); 456348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 457348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 458348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 459348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 460348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 461348662a1SJoe Perches struct net_bridge_mdb_entry * 462348662a1SJoe Perches br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); 463348662a1SJoe Perches struct net_bridge_mdb_entry * 464348662a1SJoe Perches br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, 465348662a1SJoe Perches struct br_ip *group); 466348662a1SJoe Perches void br_multicast_free_pg(struct rcu_head *head); 467348662a1SJoe Perches struct net_bridge_port_group * 468348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 469762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 470ccb1c31aSAmerigo Wang unsigned char state); 471348662a1SJoe Perches void br_mdb_init(void); 472348662a1SJoe Perches void br_mdb_uninit(void); 473348662a1SJoe Perches 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 47985b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 48085b35269SSridhar Samudrala { 48185b35269SSridhar Samudrala return br->multicast_router == 2 || 48285b35269SSridhar Samudrala (br->multicast_router == 1 && 48385b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 48485b35269SSridhar Samudrala } 485b00589afSLinus Lüssing 486cc0fdd80SLinus Lüssing static inline bool 487cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 488cc0fdd80SLinus Lüssing struct bridge_mcast_querier *querier) 489b00589afSLinus Lüssing { 490cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 491cc0fdd80SLinus Lüssing (br->multicast_querier || timer_pending(&querier->timer)); 492cc0fdd80SLinus Lüssing } 493cc0fdd80SLinus Lüssing 494cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 495cc0fdd80SLinus Lüssing struct ethhdr *eth) 496cc0fdd80SLinus Lüssing { 497cc0fdd80SLinus Lüssing switch (eth->h_proto) { 498cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 499cc0fdd80SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip4_querier); 500cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 501cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 502cc0fdd80SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip6_querier); 503cc0fdd80SLinus Lüssing #endif 504cc0fdd80SLinus Lüssing default: 505cc0fdd80SLinus Lüssing return false; 506cc0fdd80SLinus Lüssing } 507b00589afSLinus Lüssing } 508eb1d1641SHerbert Xu #else 509eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 510eb1d1641SHerbert Xu struct net_bridge_port *port, 51106499098SVlad Yasevich struct sk_buff *skb, 51206499098SVlad Yasevich u16 vid) 513eb1d1641SHerbert Xu { 514eb1d1641SHerbert Xu return 0; 515eb1d1641SHerbert Xu } 516eb1d1641SHerbert Xu 517eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 518fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 519eb1d1641SHerbert Xu { 520eb1d1641SHerbert Xu return NULL; 521eb1d1641SHerbert Xu } 522eb1d1641SHerbert Xu 523eb1d1641SHerbert Xu static inline void br_multicast_add_port(struct net_bridge_port *port) 524eb1d1641SHerbert Xu { 525eb1d1641SHerbert Xu } 526eb1d1641SHerbert Xu 527eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 528eb1d1641SHerbert Xu { 529eb1d1641SHerbert Xu } 530eb1d1641SHerbert Xu 531eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 532eb1d1641SHerbert Xu { 533eb1d1641SHerbert Xu } 534eb1d1641SHerbert Xu 535eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 536eb1d1641SHerbert Xu { 537eb1d1641SHerbert Xu } 538eb1d1641SHerbert Xu 539eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 540eb1d1641SHerbert Xu { 541eb1d1641SHerbert Xu } 542eb1d1641SHerbert Xu 543eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 544eb1d1641SHerbert Xu { 545eb1d1641SHerbert Xu } 546eb1d1641SHerbert Xu 547eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 548eb1d1641SHerbert Xu { 549eb1d1641SHerbert Xu } 5505cb5e947SHerbert Xu 5515cb5e947SHerbert Xu static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 5525cb5e947SHerbert Xu struct sk_buff *skb) 5535cb5e947SHerbert Xu { 5545cb5e947SHerbert Xu } 5555cb5e947SHerbert Xu 5565cb5e947SHerbert Xu static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 5575cb5e947SHerbert Xu struct sk_buff *skb, 5585cb5e947SHerbert Xu struct sk_buff *skb2) 5595cb5e947SHerbert Xu { 5605cb5e947SHerbert Xu } 561eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 562eb1d1641SHerbert Xu { 56385b35269SSridhar Samudrala return 0; 564eb1d1641SHerbert Xu } 565cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 566cc0fdd80SLinus Lüssing struct ethhdr *eth) 567b00589afSLinus Lüssing { 568b00589afSLinus Lüssing return false; 569b00589afSLinus Lüssing } 570fdb184d1SRami Rosen static inline void br_mdb_init(void) 571fdb184d1SRami Rosen { 572fdb184d1SRami Rosen } 573fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 574fdb184d1SRami Rosen { 575fdb184d1SRami Rosen } 57685b35269SSridhar Samudrala #endif 577eb1d1641SHerbert Xu 578243a2e63SVlad Yasevich /* br_vlan.c */ 579243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 580348662a1SJoe Perches bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v, 58178851988SVlad Yasevich struct sk_buff *skb, u16 *vid); 582348662a1SJoe Perches bool br_allowed_egress(struct net_bridge *br, const struct net_port_vlans *v, 58385f46c6bSVlad Yasevich const struct sk_buff *skb); 584348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 58578851988SVlad Yasevich const struct net_port_vlans *v, 58678851988SVlad Yasevich struct sk_buff *skb); 587348662a1SJoe Perches int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); 588348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 589348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 5902b292fb4SToshiaki Makita bool br_vlan_find(struct net_bridge *br, u16 vid); 591348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 592348662a1SJoe Perches int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); 593348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 594348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 595348662a1SJoe Perches bool nbp_vlan_find(struct net_bridge_port *port, u16 vid); 596a37b85c9SVlad Yasevich 597a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 598a37b85c9SVlad Yasevich const struct net_bridge *br) 599a37b85c9SVlad Yasevich { 6001690be63SVlad Yasevich return rcu_dereference_rtnl(br->vlan_info); 601a37b85c9SVlad Yasevich } 602a37b85c9SVlad Yasevich 603a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 604a37b85c9SVlad Yasevich const struct net_bridge_port *p) 605a37b85c9SVlad Yasevich { 6061690be63SVlad Yasevich return rcu_dereference_rtnl(p->vlan_info); 607a37b85c9SVlad Yasevich } 608a37b85c9SVlad Yasevich 609a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 610a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 611a37b85c9SVlad Yasevich */ 612a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 613a37b85c9SVlad Yasevich { 614a37b85c9SVlad Yasevich int err = 0; 615a37b85c9SVlad Yasevich 616a37b85c9SVlad Yasevich if (vlan_tx_tag_present(skb)) 617a37b85c9SVlad Yasevich *vid = vlan_tx_tag_get(skb) & VLAN_VID_MASK; 618a37b85c9SVlad Yasevich else { 619a37b85c9SVlad Yasevich *vid = 0; 620a37b85c9SVlad Yasevich err = -EINVAL; 621a37b85c9SVlad Yasevich } 622a37b85c9SVlad Yasevich 623a37b85c9SVlad Yasevich return err; 624a37b85c9SVlad Yasevich } 62578851988SVlad Yasevich 62678851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 62778851988SVlad Yasevich { 62878851988SVlad Yasevich /* Return just the VID if it is set, or VLAN_N_VID (invalid vid) if 62978851988SVlad Yasevich * vid wasn't set 63078851988SVlad Yasevich */ 63178851988SVlad Yasevich smp_rmb(); 632d1c6c708SToshiaki Makita return v->pvid ?: VLAN_N_VID; 63378851988SVlad Yasevich } 63478851988SVlad Yasevich 635243a2e63SVlad Yasevich #else 636a37b85c9SVlad Yasevich static inline bool br_allowed_ingress(struct net_bridge *br, 637a37b85c9SVlad Yasevich struct net_port_vlans *v, 63878851988SVlad Yasevich struct sk_buff *skb, 63978851988SVlad Yasevich u16 *vid) 640a37b85c9SVlad Yasevich { 641a37b85c9SVlad Yasevich return true; 642a37b85c9SVlad Yasevich } 643a37b85c9SVlad Yasevich 64485f46c6bSVlad Yasevich static inline bool br_allowed_egress(struct net_bridge *br, 64585f46c6bSVlad Yasevich const struct net_port_vlans *v, 64685f46c6bSVlad Yasevich const struct sk_buff *skb) 64785f46c6bSVlad Yasevich { 64885f46c6bSVlad Yasevich return true; 64985f46c6bSVlad Yasevich } 65085f46c6bSVlad Yasevich 65178851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 65278851988SVlad Yasevich const struct net_port_vlans *v, 65378851988SVlad Yasevich struct sk_buff *skb) 65478851988SVlad Yasevich { 65578851988SVlad Yasevich return skb; 65678851988SVlad Yasevich } 65778851988SVlad Yasevich 658552406c4SVlad Yasevich static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) 659243a2e63SVlad Yasevich { 660243a2e63SVlad Yasevich return -EOPNOTSUPP; 661243a2e63SVlad Yasevich } 662243a2e63SVlad Yasevich 663243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 664243a2e63SVlad Yasevich { 665243a2e63SVlad Yasevich return -EOPNOTSUPP; 666243a2e63SVlad Yasevich } 667243a2e63SVlad Yasevich 668243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 669243a2e63SVlad Yasevich { 670243a2e63SVlad Yasevich } 671243a2e63SVlad Yasevich 6722b292fb4SToshiaki Makita static inline bool br_vlan_find(struct net_bridge *br, u16 vid) 6732b292fb4SToshiaki Makita { 6742b292fb4SToshiaki Makita return false; 6752b292fb4SToshiaki Makita } 6762b292fb4SToshiaki Makita 677552406c4SVlad Yasevich static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) 678243a2e63SVlad Yasevich { 679243a2e63SVlad Yasevich return -EOPNOTSUPP; 680243a2e63SVlad Yasevich } 681243a2e63SVlad Yasevich 682243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 683243a2e63SVlad Yasevich { 684243a2e63SVlad Yasevich return -EOPNOTSUPP; 685243a2e63SVlad Yasevich } 686243a2e63SVlad Yasevich 687243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 688243a2e63SVlad Yasevich { 689243a2e63SVlad Yasevich } 690243a2e63SVlad Yasevich 691a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 692a37b85c9SVlad Yasevich const struct net_bridge *br) 693a37b85c9SVlad Yasevich { 694a37b85c9SVlad Yasevich return NULL; 695a37b85c9SVlad Yasevich } 696a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 697a37b85c9SVlad Yasevich const struct net_bridge_port *p) 698a37b85c9SVlad Yasevich { 699a37b85c9SVlad Yasevich return NULL; 700a37b85c9SVlad Yasevich } 701a37b85c9SVlad Yasevich 702bc9a25d2SVlad Yasevich static inline bool nbp_vlan_find(struct net_bridge_port *port, u16 vid) 703bc9a25d2SVlad Yasevich { 704bc9a25d2SVlad Yasevich return false; 705bc9a25d2SVlad Yasevich } 706bc9a25d2SVlad Yasevich 70778851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 708a37b85c9SVlad Yasevich { 709a37b85c9SVlad Yasevich return 0; 710a37b85c9SVlad Yasevich } 71178851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 71278851988SVlad Yasevich { 71378851988SVlad Yasevich return VLAN_N_VID; /* Returns invalid vid */ 71478851988SVlad Yasevich } 715243a2e63SVlad Yasevich #endif 716243a2e63SVlad Yasevich 7171da177e4SLinus Torvalds /* br_netfilter.c */ 718c0909713SStephen Hemminger #ifdef CONFIG_BRIDGE_NETFILTER 719348662a1SJoe Perches int br_netfilter_init(void); 720348662a1SJoe Perches void br_netfilter_fini(void); 721348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 722c0909713SStephen Hemminger #else 723c0909713SStephen Hemminger #define br_netfilter_init() (0) 724c0909713SStephen Hemminger #define br_netfilter_fini() do { } while (0) 7254adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 726c0909713SStephen Hemminger #endif 7271da177e4SLinus Torvalds 7281da177e4SLinus Torvalds /* br_stp.c */ 729348662a1SJoe Perches void br_log_state(const struct net_bridge_port *p); 730348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 731348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 732348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 7331da177e4SLinus Torvalds 734348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 735348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 736348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 737348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 73814f98f25Sstephen hemminger 73914f98f25Sstephen hemminger 7401da177e4SLinus Torvalds /* br_stp_if.c */ 741348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 742348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 743348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 744348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 745348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 746348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 747348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 748348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 749348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 750348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 751348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 7521da177e4SLinus Torvalds 7531da177e4SLinus Torvalds /* br_stp_bpdu.c */ 7547c85fbf0SPatrick McHardy struct stp_proto; 755348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 7567c85fbf0SPatrick McHardy struct net_device *dev); 7571da177e4SLinus Torvalds 7581da177e4SLinus Torvalds /* br_stp_timer.c */ 759348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 760348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 761348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 7621da177e4SLinus Torvalds 7631da177e4SLinus Torvalds /* br.c */ 764e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 765da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 766da678292SMichał Mirosław #endif 7671da177e4SLinus Torvalds 76811dc1f36SStephen Hemminger /* br_netlink.c */ 769149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 770348662a1SJoe Perches int br_netlink_init(void); 771348662a1SJoe Perches void br_netlink_fini(void); 772348662a1SJoe Perches void br_ifinfo_notify(int event, struct net_bridge_port *port); 773348662a1SJoe Perches int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg); 774348662a1SJoe Perches int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg); 775348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 776348662a1SJoe Perches u32 filter_mask); 77711dc1f36SStephen Hemminger 7781da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 7791da177e4SLinus Torvalds /* br_sysfs_if.c */ 78052cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 781348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 782348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 7831da177e4SLinus Torvalds 7841da177e4SLinus Torvalds /* br_sysfs_br.c */ 785348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 786348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 7871da177e4SLinus Torvalds 7881da177e4SLinus Torvalds #else 7891da177e4SLinus Torvalds 7900cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 7910cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 7920cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 7930cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 7941da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 7951da177e4SLinus Torvalds 7961da177e4SLinus Torvalds #endif 797