11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * Linux ethernet bridge 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Authors: 51da177e4SLinus Torvalds * Lennert Buytenhek <buytenh@gnu.org> 61da177e4SLinus Torvalds * 71da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or 81da177e4SLinus Torvalds * modify it under the terms of the GNU General Public License 91da177e4SLinus Torvalds * as published by the Free Software Foundation; either version 101da177e4SLinus Torvalds * 2 of the License, or (at your option) any later version. 111da177e4SLinus Torvalds */ 121da177e4SLinus Torvalds 131da177e4SLinus Torvalds #ifndef _BR_PRIVATE_H 141da177e4SLinus Torvalds #define _BR_PRIVATE_H 151da177e4SLinus Torvalds 161da177e4SLinus Torvalds #include <linux/netdevice.h> 171da177e4SLinus Torvalds #include <linux/if_bridge.h> 1891d2c34aSHerbert Xu #include <linux/netpoll.h> 19406818ffSEric Dumazet #include <linux/u64_stats_sync.h> 204adf0af6SSimon Wunderlich #include <net/route.h> 21243a2e63SVlad Yasevich #include <linux/if_vlan.h> 221da177e4SLinus Torvalds 231da177e4SLinus Torvalds #define BR_HASH_BITS 8 241da177e4SLinus Torvalds #define BR_HASH_SIZE (1 << BR_HASH_BITS) 251da177e4SLinus Torvalds 261da177e4SLinus Torvalds #define BR_HOLD_TIME (1*HZ) 271da177e4SLinus Torvalds 281da177e4SLinus Torvalds #define BR_PORT_BITS 10 291da177e4SLinus Torvalds #define BR_MAX_PORTS (1<<BR_PORT_BITS) 30243a2e63SVlad Yasevich #define BR_VLAN_BITMAP_LEN BITS_TO_LONGS(VLAN_N_VID) 311da177e4SLinus Torvalds 329cde0708SStephen Hemminger #define BR_VERSION "2.3" 339cde0708SStephen Hemminger 34515853ccSstephen hemminger /* Control of forwarding link local multicast */ 35515853ccSstephen hemminger #define BR_GROUPFWD_DEFAULT 0 36515853ccSstephen hemminger /* Don't allow forwarding control protocols like STP and LLDP */ 37515853ccSstephen hemminger #define BR_GROUPFWD_RESTRICTED 0x4007u 38515853ccSstephen hemminger 399cde0708SStephen Hemminger /* Path to usermode spanning tree program */ 409cde0708SStephen Hemminger #define BR_STP_PROG "/sbin/bridge-stp" 418cbb512eSStephen Hemminger 421da177e4SLinus Torvalds typedef struct bridge_id bridge_id; 431da177e4SLinus Torvalds typedef struct mac_addr mac_addr; 441da177e4SLinus Torvalds typedef __u16 port_id; 451da177e4SLinus Torvalds 461da177e4SLinus Torvalds struct bridge_id 471da177e4SLinus Torvalds { 481da177e4SLinus Torvalds unsigned char prio[2]; 491da177e4SLinus Torvalds unsigned char addr[6]; 501da177e4SLinus Torvalds }; 511da177e4SLinus Torvalds 521da177e4SLinus Torvalds struct mac_addr 531da177e4SLinus Torvalds { 541da177e4SLinus Torvalds unsigned char addr[6]; 551da177e4SLinus Torvalds }; 561da177e4SLinus Torvalds 578ef2a9a5SYOSHIFUJI Hideaki struct br_ip 588ef2a9a5SYOSHIFUJI Hideaki { 598ef2a9a5SYOSHIFUJI Hideaki union { 608ef2a9a5SYOSHIFUJI Hideaki __be32 ip4; 61dfd56b8bSEric Dumazet #if IS_ENABLED(CONFIG_IPV6) 6208b202b6SYOSHIFUJI Hideaki struct in6_addr ip6; 6308b202b6SYOSHIFUJI Hideaki #endif 648ef2a9a5SYOSHIFUJI Hideaki } u; 658ef2a9a5SYOSHIFUJI Hideaki __be16 proto; 66b0e9a30dSVlad Yasevich __u16 vid; 678ef2a9a5SYOSHIFUJI Hideaki }; 688ef2a9a5SYOSHIFUJI Hideaki 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; 1072ba071ecSVlad Yasevich __u16 vlan_id; 1081da177e4SLinus Torvalds }; 1091da177e4SLinus Torvalds 110eb1d1641SHerbert Xu struct net_bridge_port_group { 111eb1d1641SHerbert Xu struct net_bridge_port *port; 112e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 113eb1d1641SHerbert Xu struct hlist_node mglist; 114eb1d1641SHerbert Xu struct rcu_head rcu; 115eb1d1641SHerbert Xu struct timer_list timer; 1168ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 117ccb1c31aSAmerigo Wang unsigned char state; 118eb1d1641SHerbert Xu }; 119eb1d1641SHerbert Xu 120eb1d1641SHerbert Xu struct net_bridge_mdb_entry 121eb1d1641SHerbert Xu { 122eb1d1641SHerbert Xu struct hlist_node hlist[2]; 123eb1d1641SHerbert Xu struct net_bridge *br; 124e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 125eb1d1641SHerbert Xu struct rcu_head rcu; 126eb1d1641SHerbert Xu struct timer_list timer; 1278ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 1288a870178SHerbert Xu bool mglist; 1299f00b2e7SCong Wang bool timer_armed; 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 2140eae88f3SEric Dumazet struct br_cpu_netstats { 215406818ffSEric Dumazet u64 rx_packets; 216406818ffSEric Dumazet u64 rx_bytes; 217406818ffSEric Dumazet u64 tx_packets; 218406818ffSEric Dumazet u64 tx_bytes; 219406818ffSEric Dumazet struct u64_stats_sync syncp; 2200eae88f3SEric Dumazet }; 2210eae88f3SEric Dumazet 2221da177e4SLinus Torvalds struct net_bridge 2231da177e4SLinus Torvalds { 2241da177e4SLinus Torvalds spinlock_t lock; 2251da177e4SLinus Torvalds struct list_head port_list; 2261da177e4SLinus Torvalds struct net_device *dev; 22714bb4789Sstephen hemminger 2280eae88f3SEric Dumazet struct br_cpu_netstats __percpu *stats; 2291da177e4SLinus Torvalds spinlock_t hash_lock; 2301da177e4SLinus Torvalds struct hlist_head hash[BR_HASH_SIZE]; 2314adf0af6SSimon Wunderlich #ifdef CONFIG_BRIDGE_NETFILTER 2324adf0af6SSimon Wunderlich struct rtable fake_rtable; 2334df53d8bSPatrick McHardy bool nf_call_iptables; 2344df53d8bSPatrick McHardy bool nf_call_ip6tables; 2354df53d8bSPatrick McHardy bool nf_call_arptables; 2364adf0af6SSimon Wunderlich #endif 237515853ccSstephen hemminger u16 group_fwd_mask; 238515853ccSstephen hemminger 2391da177e4SLinus Torvalds /* STP */ 2401da177e4SLinus Torvalds bridge_id designated_root; 2411da177e4SLinus Torvalds bridge_id bridge_id; 2421da177e4SLinus Torvalds u32 root_path_cost; 2431da177e4SLinus Torvalds unsigned long max_age; 2441da177e4SLinus Torvalds unsigned long hello_time; 2451da177e4SLinus Torvalds unsigned long forward_delay; 2461da177e4SLinus Torvalds unsigned long bridge_max_age; 2471da177e4SLinus Torvalds unsigned long ageing_time; 2481da177e4SLinus Torvalds unsigned long bridge_hello_time; 2491da177e4SLinus Torvalds unsigned long bridge_forward_delay; 2501da177e4SLinus Torvalds 251fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 2521da177e4SLinus Torvalds u16 root_port; 2539cde0708SStephen Hemminger 2549cde0708SStephen Hemminger enum { 2559cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 2569cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 2579cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 2589cde0708SStephen Hemminger } stp_enabled; 2599cde0708SStephen Hemminger 2601da177e4SLinus Torvalds unsigned char topology_change; 2611da177e4SLinus Torvalds unsigned char topology_change_detected; 2621da177e4SLinus Torvalds 263eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 264eb1d1641SHerbert Xu unsigned char multicast_router; 265eb1d1641SHerbert Xu 266eb1d1641SHerbert Xu u8 multicast_disabled:1; 267c5c23260SHerbert Xu u8 multicast_querier:1; 2681c8ad5bfSCong Wang u8 multicast_query_use_ifaddr:1; 269eb1d1641SHerbert Xu 270eb1d1641SHerbert Xu u32 hash_elasticity; 271eb1d1641SHerbert Xu u32 hash_max; 272eb1d1641SHerbert Xu 273eb1d1641SHerbert Xu u32 multicast_last_member_count; 274eb1d1641SHerbert Xu u32 multicast_startup_query_count; 275eb1d1641SHerbert Xu 276eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 277eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 278eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 279eb1d1641SHerbert Xu unsigned long multicast_query_interval; 280eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 281eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 282eb1d1641SHerbert Xu 283eb1d1641SHerbert Xu spinlock_t multicast_lock; 284e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 285eb1d1641SHerbert Xu struct hlist_head router_list; 286eb1d1641SHerbert Xu 287eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 288cc0fdd80SLinus Lüssing struct bridge_mcast_querier ip4_querier; 289cc0fdd80SLinus Lüssing struct bridge_mcast_query ip4_query; 290cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 291cc0fdd80SLinus Lüssing struct bridge_mcast_querier ip6_querier; 292cc0fdd80SLinus Lüssing struct bridge_mcast_query ip6_query; 293cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 294eb1d1641SHerbert Xu #endif 295eb1d1641SHerbert Xu 2961da177e4SLinus Torvalds struct timer_list hello_timer; 2971da177e4SLinus Torvalds struct timer_list tcn_timer; 2981da177e4SLinus Torvalds struct timer_list topology_change_timer; 2991da177e4SLinus Torvalds struct timer_list gc_timer; 30043b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 301243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 302243a2e63SVlad Yasevich u8 vlan_enabled; 303243a2e63SVlad Yasevich struct net_port_vlans __rcu *vlan_info; 304243a2e63SVlad Yasevich #endif 3051da177e4SLinus Torvalds }; 3061da177e4SLinus Torvalds 30768b7c895SHerbert Xu struct br_input_skb_cb { 30868b7c895SHerbert Xu struct net_device *brdev; 30932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 310eb1d1641SHerbert Xu int igmp; 311eb1d1641SHerbert Xu int mrouters_only; 31232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 31368b7c895SHerbert Xu }; 31468b7c895SHerbert Xu 31568b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 31668b7c895SHerbert Xu 31732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 31832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 31932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 32032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 32132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 32232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 32328a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 32428a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 32528a16c97Sstephen hemminger 32628a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 32728a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 32828a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 32928a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 33028a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 33128a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 33228a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 33328a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 33428a16c97Sstephen hemminger 33528a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 33628a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 33728a16c97Sstephen hemminger 3381da177e4SLinus Torvalds extern struct notifier_block br_device_notifier; 3391da177e4SLinus Torvalds 3401da177e4SLinus Torvalds /* called under bridge lock */ 3411da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 3421da177e4SLinus Torvalds { 3431da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 3441da177e4SLinus Torvalds } 3451da177e4SLinus Torvalds 3461da177e4SLinus Torvalds /* br_device.c */ 347348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 348348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 349348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 350cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 35191d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 35291d2c34aSHerbert Xu struct sk_buff *skb) 35391d2c34aSHerbert Xu { 35491d2c34aSHerbert Xu struct netpoll *np = p->np; 35591d2c34aSHerbert Xu 35691d2c34aSHerbert Xu if (np) 35791d2c34aSHerbert Xu netpoll_send_skb(np, skb); 35891d2c34aSHerbert Xu } 35991d2c34aSHerbert Xu 360348662a1SJoe Perches int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp); 361348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 36291d2c34aSHerbert Xu #else 3639f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 36491d2c34aSHerbert Xu struct sk_buff *skb) 36591d2c34aSHerbert Xu { 36691d2c34aSHerbert Xu } 36791d2c34aSHerbert Xu 36847be03a2SAmerigo Wang static inline int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp) 36991d2c34aSHerbert Xu { 37091d2c34aSHerbert Xu return 0; 37191d2c34aSHerbert Xu } 37291d2c34aSHerbert Xu 37391d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 37491d2c34aSHerbert Xu { 37591d2c34aSHerbert Xu } 376cfb478daSstephen hemminger #endif 3771da177e4SLinus Torvalds 3781da177e4SLinus Torvalds /* br_fdb.c */ 379348662a1SJoe Perches int br_fdb_init(void); 380348662a1SJoe Perches void br_fdb_fini(void); 381348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 382348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 383348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 384348662a1SJoe Perches void br_fdb_cleanup(unsigned long arg); 385348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 3861a620698SStephen Hemminger const struct net_bridge_port *p, int do_all); 387348662a1SJoe Perches struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, 388348662a1SJoe Perches const unsigned char *addr, __u16 vid); 389348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 390348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 391348662a1SJoe Perches unsigned long off); 392348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 393348662a1SJoe Perches const unsigned char *addr, u16 vid); 394348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 395348662a1SJoe Perches const unsigned char *addr, u16 vid); 396348662a1SJoe Perches int fdb_delete_by_addr(struct net_bridge *br, const u8 *addr, u16 vid); 39777162022SJohn Fastabend 398348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 399348662a1SJoe Perches struct net_device *dev, const unsigned char *addr); 400348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 401348662a1SJoe Perches const unsigned char *addr, u16 nlh_flags); 402348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 403348662a1SJoe Perches struct net_device *dev, int idx); 4041da177e4SLinus Torvalds 4051da177e4SLinus Torvalds /* br_forward.c */ 406348662a1SJoe Perches void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb); 407348662a1SJoe Perches int br_dev_queue_push_xmit(struct sk_buff *skb); 408348662a1SJoe Perches void br_forward(const struct net_bridge_port *to, 4097f7708f0SMichael Braun struct sk_buff *skb, struct sk_buff *skb0); 410348662a1SJoe Perches int br_forward_finish(struct sk_buff *skb); 411348662a1SJoe Perches void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast); 412348662a1SJoe Perches void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, 413867a5943SVlad Yasevich struct sk_buff *skb2, bool unicast); 4141da177e4SLinus Torvalds 4151da177e4SLinus Torvalds /* br_if.c */ 416348662a1SJoe Perches void br_port_carrier_check(struct net_bridge_port *p); 417348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 418348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 419348662a1SJoe Perches void br_net_exit(struct net *net); 420348662a1SJoe Perches int br_add_if(struct net_bridge *br, struct net_device *dev); 421348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 422348662a1SJoe Perches int br_min_mtu(const struct net_bridge *br); 423348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 424c8f44affSMichał Mirosław netdev_features_t features); 4251da177e4SLinus Torvalds 4261da177e4SLinus Torvalds /* br_input.c */ 427348662a1SJoe Perches int br_handle_frame_finish(struct sk_buff *skb); 428348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 4291da177e4SLinus Torvalds 4301da177e4SLinus Torvalds /* br_ioctl.c */ 431348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 432348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 433348662a1SJoe Perches void __user *arg); 4341da177e4SLinus Torvalds 435eb1d1641SHerbert Xu /* br_multicast.c */ 436eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 4372ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 438348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 439eb1d1641SHerbert Xu struct sk_buff *skb); 440348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 441fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 442348662a1SJoe Perches void br_multicast_add_port(struct net_bridge_port *port); 443348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 444348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 445348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 446348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 447348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 448348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 449348662a1SJoe Perches void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 4505cb5e947SHerbert Xu struct sk_buff *skb); 451348662a1SJoe Perches void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 4525cb5e947SHerbert Xu struct sk_buff *skb, struct sk_buff *skb2); 453348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 454348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 455348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 456348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 457348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 458348662a1SJoe Perches struct net_bridge_mdb_entry * 459348662a1SJoe Perches br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); 460348662a1SJoe Perches struct net_bridge_mdb_entry * 461348662a1SJoe Perches br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, 462348662a1SJoe Perches struct br_ip *group); 463348662a1SJoe Perches void br_multicast_free_pg(struct rcu_head *head); 464348662a1SJoe Perches struct net_bridge_port_group * 465348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 466762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 467ccb1c31aSAmerigo Wang unsigned char state); 468348662a1SJoe Perches void br_mdb_init(void); 469348662a1SJoe Perches void br_mdb_uninit(void); 470348662a1SJoe Perches void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 47137a393bcSCong Wang struct br_ip *group, int type); 47285b35269SSridhar Samudrala 473cfd56754SCong Wang #define mlock_dereference(X, br) \ 474cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 475cfd56754SCong Wang 47685b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 47785b35269SSridhar Samudrala { 47885b35269SSridhar Samudrala return br->multicast_router == 2 || 47985b35269SSridhar Samudrala (br->multicast_router == 1 && 48085b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 48185b35269SSridhar Samudrala } 482b00589afSLinus Lüssing 483cc0fdd80SLinus Lüssing static inline bool 484cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 485cc0fdd80SLinus Lüssing struct bridge_mcast_querier *querier) 486b00589afSLinus Lüssing { 487cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 488cc0fdd80SLinus Lüssing (br->multicast_querier || timer_pending(&querier->timer)); 489cc0fdd80SLinus Lüssing } 490cc0fdd80SLinus Lüssing 491cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 492cc0fdd80SLinus Lüssing struct ethhdr *eth) 493cc0fdd80SLinus Lüssing { 494cc0fdd80SLinus Lüssing switch (eth->h_proto) { 495cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 496cc0fdd80SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip4_querier); 497cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 498cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 499cc0fdd80SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip6_querier); 500cc0fdd80SLinus Lüssing #endif 501cc0fdd80SLinus Lüssing default: 502cc0fdd80SLinus Lüssing return false; 503cc0fdd80SLinus Lüssing } 504b00589afSLinus Lüssing } 505eb1d1641SHerbert Xu #else 506eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 507eb1d1641SHerbert Xu struct net_bridge_port *port, 508eb1d1641SHerbert Xu struct sk_buff *skb) 509eb1d1641SHerbert Xu { 510eb1d1641SHerbert Xu return 0; 511eb1d1641SHerbert Xu } 512eb1d1641SHerbert Xu 513eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 514fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 515eb1d1641SHerbert Xu { 516eb1d1641SHerbert Xu return NULL; 517eb1d1641SHerbert Xu } 518eb1d1641SHerbert Xu 519eb1d1641SHerbert Xu static inline void br_multicast_add_port(struct net_bridge_port *port) 520eb1d1641SHerbert Xu { 521eb1d1641SHerbert Xu } 522eb1d1641SHerbert Xu 523eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 524eb1d1641SHerbert Xu { 525eb1d1641SHerbert Xu } 526eb1d1641SHerbert Xu 527eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 528eb1d1641SHerbert Xu { 529eb1d1641SHerbert Xu } 530eb1d1641SHerbert Xu 531eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 532eb1d1641SHerbert Xu { 533eb1d1641SHerbert Xu } 534eb1d1641SHerbert Xu 535eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 536eb1d1641SHerbert Xu { 537eb1d1641SHerbert Xu } 538eb1d1641SHerbert Xu 539eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 540eb1d1641SHerbert Xu { 541eb1d1641SHerbert Xu } 542eb1d1641SHerbert Xu 543eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 544eb1d1641SHerbert Xu { 545eb1d1641SHerbert Xu } 5465cb5e947SHerbert Xu 5475cb5e947SHerbert Xu static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 5485cb5e947SHerbert Xu struct sk_buff *skb) 5495cb5e947SHerbert Xu { 5505cb5e947SHerbert Xu } 5515cb5e947SHerbert Xu 5525cb5e947SHerbert Xu static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 5535cb5e947SHerbert Xu struct sk_buff *skb, 5545cb5e947SHerbert Xu struct sk_buff *skb2) 5555cb5e947SHerbert Xu { 5565cb5e947SHerbert Xu } 557eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 558eb1d1641SHerbert Xu { 55985b35269SSridhar Samudrala return 0; 560eb1d1641SHerbert Xu } 561cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 562cc0fdd80SLinus Lüssing struct ethhdr *eth) 563b00589afSLinus Lüssing { 564b00589afSLinus Lüssing return false; 565b00589afSLinus Lüssing } 566fdb184d1SRami Rosen static inline void br_mdb_init(void) 567fdb184d1SRami Rosen { 568fdb184d1SRami Rosen } 569fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 570fdb184d1SRami Rosen { 571fdb184d1SRami Rosen } 57285b35269SSridhar Samudrala #endif 573eb1d1641SHerbert Xu 574243a2e63SVlad Yasevich /* br_vlan.c */ 575243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 576348662a1SJoe Perches bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v, 57778851988SVlad Yasevich struct sk_buff *skb, u16 *vid); 578348662a1SJoe Perches bool br_allowed_egress(struct net_bridge *br, const struct net_port_vlans *v, 57985f46c6bSVlad Yasevich const struct sk_buff *skb); 580348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 58178851988SVlad Yasevich const struct net_port_vlans *v, 58278851988SVlad Yasevich struct sk_buff *skb); 583348662a1SJoe Perches int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); 584348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 585348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 586348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 587348662a1SJoe Perches int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); 588348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 589348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 590348662a1SJoe Perches bool nbp_vlan_find(struct net_bridge_port *port, u16 vid); 591a37b85c9SVlad Yasevich 592a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 593a37b85c9SVlad Yasevich const struct net_bridge *br) 594a37b85c9SVlad Yasevich { 5951690be63SVlad Yasevich return rcu_dereference_rtnl(br->vlan_info); 596a37b85c9SVlad Yasevich } 597a37b85c9SVlad Yasevich 598a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 599a37b85c9SVlad Yasevich const struct net_bridge_port *p) 600a37b85c9SVlad Yasevich { 6011690be63SVlad Yasevich return rcu_dereference_rtnl(p->vlan_info); 602a37b85c9SVlad Yasevich } 603a37b85c9SVlad Yasevich 604a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 605a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 606a37b85c9SVlad Yasevich */ 607a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 608a37b85c9SVlad Yasevich { 609a37b85c9SVlad Yasevich int err = 0; 610a37b85c9SVlad Yasevich 611a37b85c9SVlad Yasevich if (vlan_tx_tag_present(skb)) 612a37b85c9SVlad Yasevich *vid = vlan_tx_tag_get(skb) & VLAN_VID_MASK; 613a37b85c9SVlad Yasevich else { 614a37b85c9SVlad Yasevich *vid = 0; 615a37b85c9SVlad Yasevich err = -EINVAL; 616a37b85c9SVlad Yasevich } 617a37b85c9SVlad Yasevich 618a37b85c9SVlad Yasevich return err; 619a37b85c9SVlad Yasevich } 62078851988SVlad Yasevich 62178851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 62278851988SVlad Yasevich { 62378851988SVlad Yasevich /* Return just the VID if it is set, or VLAN_N_VID (invalid vid) if 62478851988SVlad Yasevich * vid wasn't set 62578851988SVlad Yasevich */ 62678851988SVlad Yasevich smp_rmb(); 62778851988SVlad Yasevich return (v->pvid & VLAN_TAG_PRESENT) ? 62878851988SVlad Yasevich (v->pvid & ~VLAN_TAG_PRESENT) : 62978851988SVlad Yasevich VLAN_N_VID; 63078851988SVlad Yasevich } 63178851988SVlad Yasevich 632243a2e63SVlad Yasevich #else 633a37b85c9SVlad Yasevich static inline bool br_allowed_ingress(struct net_bridge *br, 634a37b85c9SVlad Yasevich struct net_port_vlans *v, 63578851988SVlad Yasevich struct sk_buff *skb, 63678851988SVlad Yasevich u16 *vid) 637a37b85c9SVlad Yasevich { 638a37b85c9SVlad Yasevich return true; 639a37b85c9SVlad Yasevich } 640a37b85c9SVlad Yasevich 64185f46c6bSVlad Yasevich static inline bool br_allowed_egress(struct net_bridge *br, 64285f46c6bSVlad Yasevich const struct net_port_vlans *v, 64385f46c6bSVlad Yasevich const struct sk_buff *skb) 64485f46c6bSVlad Yasevich { 64585f46c6bSVlad Yasevich return true; 64685f46c6bSVlad Yasevich } 64785f46c6bSVlad Yasevich 64878851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 64978851988SVlad Yasevich const struct net_port_vlans *v, 65078851988SVlad Yasevich struct sk_buff *skb) 65178851988SVlad Yasevich { 65278851988SVlad Yasevich return skb; 65378851988SVlad Yasevich } 65478851988SVlad Yasevich 655552406c4SVlad Yasevich static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) 656243a2e63SVlad Yasevich { 657243a2e63SVlad Yasevich return -EOPNOTSUPP; 658243a2e63SVlad Yasevich } 659243a2e63SVlad Yasevich 660243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 661243a2e63SVlad Yasevich { 662243a2e63SVlad Yasevich return -EOPNOTSUPP; 663243a2e63SVlad Yasevich } 664243a2e63SVlad Yasevich 665243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 666243a2e63SVlad Yasevich { 667243a2e63SVlad Yasevich } 668243a2e63SVlad Yasevich 669552406c4SVlad Yasevich static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) 670243a2e63SVlad Yasevich { 671243a2e63SVlad Yasevich return -EOPNOTSUPP; 672243a2e63SVlad Yasevich } 673243a2e63SVlad Yasevich 674243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 675243a2e63SVlad Yasevich { 676243a2e63SVlad Yasevich return -EOPNOTSUPP; 677243a2e63SVlad Yasevich } 678243a2e63SVlad Yasevich 679243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 680243a2e63SVlad Yasevich { 681243a2e63SVlad Yasevich } 682243a2e63SVlad Yasevich 683a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 684a37b85c9SVlad Yasevich const struct net_bridge *br) 685a37b85c9SVlad Yasevich { 686a37b85c9SVlad Yasevich return NULL; 687a37b85c9SVlad Yasevich } 688a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 689a37b85c9SVlad Yasevich const struct net_bridge_port *p) 690a37b85c9SVlad Yasevich { 691a37b85c9SVlad Yasevich return NULL; 692a37b85c9SVlad Yasevich } 693a37b85c9SVlad Yasevich 694bc9a25d2SVlad Yasevich static inline bool nbp_vlan_find(struct net_bridge_port *port, u16 vid) 695bc9a25d2SVlad Yasevich { 696bc9a25d2SVlad Yasevich return false; 697bc9a25d2SVlad Yasevich } 698bc9a25d2SVlad Yasevich 69978851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 700a37b85c9SVlad Yasevich { 701a37b85c9SVlad Yasevich return 0; 702a37b85c9SVlad Yasevich } 70378851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 70478851988SVlad Yasevich { 70578851988SVlad Yasevich return VLAN_N_VID; /* Returns invalid vid */ 70678851988SVlad Yasevich } 707243a2e63SVlad Yasevich #endif 708243a2e63SVlad Yasevich 7091da177e4SLinus Torvalds /* br_netfilter.c */ 710c0909713SStephen Hemminger #ifdef CONFIG_BRIDGE_NETFILTER 711348662a1SJoe Perches int br_netfilter_init(void); 712348662a1SJoe Perches void br_netfilter_fini(void); 713348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 714c0909713SStephen Hemminger #else 715c0909713SStephen Hemminger #define br_netfilter_init() (0) 716c0909713SStephen Hemminger #define br_netfilter_fini() do { } while(0) 7174adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 718c0909713SStephen Hemminger #endif 7191da177e4SLinus Torvalds 7201da177e4SLinus Torvalds /* br_stp.c */ 721348662a1SJoe Perches void br_log_state(const struct net_bridge_port *p); 722348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 723348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 724348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 7251da177e4SLinus Torvalds 726348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 727348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 728348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 729348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 73014f98f25Sstephen hemminger 73114f98f25Sstephen hemminger 7321da177e4SLinus Torvalds /* br_stp_if.c */ 733348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 734348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 735348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 736348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 737348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 738348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 739348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 740348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 741348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 742348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 743348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 7441da177e4SLinus Torvalds 7451da177e4SLinus Torvalds /* br_stp_bpdu.c */ 7467c85fbf0SPatrick McHardy struct stp_proto; 747348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 7487c85fbf0SPatrick McHardy struct net_device *dev); 7491da177e4SLinus Torvalds 7501da177e4SLinus Torvalds /* br_stp_timer.c */ 751348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 752348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 753348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 7541da177e4SLinus Torvalds 7551da177e4SLinus Torvalds /* br.c */ 756e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 757da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 758da678292SMichał Mirosław #endif 7591da177e4SLinus Torvalds 76011dc1f36SStephen Hemminger /* br_netlink.c */ 761149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 762348662a1SJoe Perches int br_netlink_init(void); 763348662a1SJoe Perches void br_netlink_fini(void); 764348662a1SJoe Perches void br_ifinfo_notify(int event, struct net_bridge_port *port); 765348662a1SJoe Perches int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg); 766348662a1SJoe Perches int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg); 767348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 768348662a1SJoe Perches u32 filter_mask); 76911dc1f36SStephen Hemminger 7701da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 7711da177e4SLinus Torvalds /* br_sysfs_if.c */ 77252cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 773348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 774348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 7751da177e4SLinus Torvalds 7761da177e4SLinus Torvalds /* br_sysfs_br.c */ 777348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 778348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 7791da177e4SLinus Torvalds 7801da177e4SLinus Torvalds #else 7811da177e4SLinus Torvalds 7820cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 7830cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 7840cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 7850cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 7861da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 7871da177e4SLinus Torvalds 7881da177e4SLinus Torvalds #endif 789