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 38f2808d22SToshiaki Makita /* The Nearest Customer Bridge Group Address, 01-80-C2-00-00-[00,0B,0C,0D,0F] */ 39f2808d22SToshiaki Makita #define BR_GROUPFWD_8021AD 0xB801u 40515853ccSstephen hemminger 419cde0708SStephen Hemminger /* Path to usermode spanning tree program */ 429cde0708SStephen Hemminger #define BR_STP_PROG "/sbin/bridge-stp" 438cbb512eSStephen Hemminger 441da177e4SLinus Torvalds typedef struct bridge_id bridge_id; 451da177e4SLinus Torvalds typedef struct mac_addr mac_addr; 461da177e4SLinus Torvalds typedef __u16 port_id; 471da177e4SLinus Torvalds 481da177e4SLinus Torvalds struct bridge_id 491da177e4SLinus Torvalds { 501da177e4SLinus Torvalds unsigned char prio[2]; 51e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 521da177e4SLinus Torvalds }; 531da177e4SLinus Torvalds 541da177e4SLinus Torvalds struct mac_addr 551da177e4SLinus Torvalds { 56e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 571da177e4SLinus Torvalds }; 581da177e4SLinus Torvalds 59cc0fdd80SLinus Lüssing #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 60cc0fdd80SLinus Lüssing /* our own querier */ 6190010b36SLinus Lüssing struct bridge_mcast_own_query { 62cc0fdd80SLinus Lüssing struct timer_list timer; 63cc0fdd80SLinus Lüssing u32 startup_sent; 64cc0fdd80SLinus Lüssing }; 65cc0fdd80SLinus Lüssing 66cc0fdd80SLinus Lüssing /* other querier */ 6790010b36SLinus Lüssing struct bridge_mcast_other_query { 68cc0fdd80SLinus Lüssing struct timer_list timer; 69cc0fdd80SLinus Lüssing unsigned long delay_time; 70cc0fdd80SLinus Lüssing }; 71dc4eb53aSLinus Lüssing 72dc4eb53aSLinus Lüssing /* selected querier */ 73dc4eb53aSLinus Lüssing struct bridge_mcast_querier { 74dc4eb53aSLinus Lüssing struct br_ip addr; 752cd41431SLinus Lüssing struct net_bridge_port __rcu *port; 76dc4eb53aSLinus Lüssing }; 77cc0fdd80SLinus Lüssing #endif 78cc0fdd80SLinus Lüssing 79243a2e63SVlad Yasevich struct net_port_vlans { 80243a2e63SVlad Yasevich u16 port_idx; 8178851988SVlad Yasevich u16 pvid; 82243a2e63SVlad Yasevich union { 83243a2e63SVlad Yasevich struct net_bridge_port *port; 84243a2e63SVlad Yasevich struct net_bridge *br; 85243a2e63SVlad Yasevich } parent; 86243a2e63SVlad Yasevich struct rcu_head rcu; 87243a2e63SVlad Yasevich unsigned long vlan_bitmap[BR_VLAN_BITMAP_LEN]; 8835e03f3aSVlad Yasevich unsigned long untagged_bitmap[BR_VLAN_BITMAP_LEN]; 896cbdceebSVlad Yasevich u16 num_vlans; 90243a2e63SVlad Yasevich }; 91243a2e63SVlad Yasevich 921da177e4SLinus Torvalds struct net_bridge_fdb_entry 931da177e4SLinus Torvalds { 941da177e4SLinus Torvalds struct hlist_node hlist; 951da177e4SLinus Torvalds struct net_bridge_port *dst; 961da177e4SLinus Torvalds 971da177e4SLinus Torvalds struct rcu_head rcu; 987cd8861aSstephen hemminger unsigned long updated; 997cd8861aSstephen hemminger unsigned long used; 1001da177e4SLinus Torvalds mac_addr addr; 10193859b13SJiri Pirko unsigned char is_local:1, 10293859b13SJiri Pirko is_static:1, 103cf6b8e1eSScott Feldman added_by_user:1, 104cf6b8e1eSScott Feldman added_by_external_learn:1; 1052ba071ecSVlad Yasevich __u16 vlan_id; 1061da177e4SLinus Torvalds }; 1071da177e4SLinus Torvalds 108eb1d1641SHerbert Xu struct net_bridge_port_group { 109eb1d1641SHerbert Xu struct net_bridge_port *port; 110e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 111eb1d1641SHerbert Xu struct hlist_node mglist; 112eb1d1641SHerbert Xu struct rcu_head rcu; 113eb1d1641SHerbert Xu struct timer_list timer; 1148ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 115ccb1c31aSAmerigo Wang unsigned char state; 116eb1d1641SHerbert Xu }; 117eb1d1641SHerbert Xu 118eb1d1641SHerbert Xu struct net_bridge_mdb_entry 119eb1d1641SHerbert Xu { 120eb1d1641SHerbert Xu struct hlist_node hlist[2]; 121eb1d1641SHerbert Xu struct net_bridge *br; 122e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 123eb1d1641SHerbert Xu struct rcu_head rcu; 124eb1d1641SHerbert Xu struct timer_list timer; 1258ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 1268a870178SHerbert Xu bool mglist; 127eb1d1641SHerbert Xu }; 128eb1d1641SHerbert Xu 129eb1d1641SHerbert Xu struct net_bridge_mdb_htable 130eb1d1641SHerbert Xu { 131eb1d1641SHerbert Xu struct hlist_head *mhash; 132eb1d1641SHerbert Xu struct rcu_head rcu; 133eb1d1641SHerbert Xu struct net_bridge_mdb_htable *old; 134eb1d1641SHerbert Xu u32 size; 135eb1d1641SHerbert Xu u32 max; 136eb1d1641SHerbert Xu u32 secret; 137eb1d1641SHerbert Xu u32 ver; 138eb1d1641SHerbert Xu }; 139eb1d1641SHerbert Xu 1401da177e4SLinus Torvalds struct net_bridge_port 1411da177e4SLinus Torvalds { 1421da177e4SLinus Torvalds struct net_bridge *br; 1431da177e4SLinus Torvalds struct net_device *dev; 1441da177e4SLinus Torvalds struct list_head list; 1451da177e4SLinus Torvalds 1461da177e4SLinus Torvalds /* STP */ 1471da177e4SLinus Torvalds u8 priority; 1481da177e4SLinus Torvalds u8 state; 1491da177e4SLinus Torvalds u16 port_no; 1501da177e4SLinus Torvalds unsigned char topology_change_ack; 1511da177e4SLinus Torvalds unsigned char config_pending; 1521da177e4SLinus Torvalds port_id port_id; 1531da177e4SLinus Torvalds port_id designated_port; 1541da177e4SLinus Torvalds bridge_id designated_root; 1551da177e4SLinus Torvalds bridge_id designated_bridge; 1561da177e4SLinus Torvalds u32 path_cost; 1571da177e4SLinus Torvalds u32 designated_cost; 1580c03150eSstephen hemminger unsigned long designated_age; 1591da177e4SLinus Torvalds 1601da177e4SLinus Torvalds struct timer_list forward_delay_timer; 1611da177e4SLinus Torvalds struct timer_list hold_timer; 1621da177e4SLinus Torvalds struct timer_list message_age_timer; 1631da177e4SLinus Torvalds struct kobject kobj; 1641da177e4SLinus Torvalds struct rcu_head rcu; 1653982d3d2SFischer, Anna 1663982d3d2SFischer, Anna unsigned long flags; 167eb1d1641SHerbert Xu 168eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 16990010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 170cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 17190010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 172cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 173eb1d1641SHerbert Xu unsigned char multicast_router; 174eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 175eb1d1641SHerbert Xu struct hlist_head mglist; 176eb1d1641SHerbert Xu struct hlist_node rlist; 177eb1d1641SHerbert Xu #endif 178e0f43752SSimon Arlott 179e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 180e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 181e0f43752SSimon Arlott #endif 18291d2c34aSHerbert Xu 18391d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 18491d2c34aSHerbert Xu struct netpoll *np; 18591d2c34aSHerbert Xu #endif 186243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 187243a2e63SVlad Yasevich struct net_port_vlans __rcu *vlan_info; 188243a2e63SVlad Yasevich #endif 1891da177e4SLinus Torvalds }; 1901da177e4SLinus Torvalds 191e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 192f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 193e028e4b8SVlad Yasevich 194f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 195f350a0a8SJiri Pirko 196b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 197b5ed54e9Sstephen hemminger { 198716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 199b5ed54e9Sstephen hemminger } 200b5ed54e9Sstephen hemminger 2011fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 202b5ed54e9Sstephen hemminger { 203ec1e5610SEric Dumazet return br_port_exists(dev) ? 204ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 205b5ed54e9Sstephen hemminger } 206b5ed54e9Sstephen hemminger 2071da177e4SLinus Torvalds struct net_bridge 2081da177e4SLinus Torvalds { 2091da177e4SLinus Torvalds spinlock_t lock; 2101da177e4SLinus Torvalds struct list_head port_list; 2111da177e4SLinus Torvalds struct net_device *dev; 21214bb4789Sstephen hemminger 2138f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 2141da177e4SLinus Torvalds spinlock_t hash_lock; 2151da177e4SLinus Torvalds struct hlist_head hash[BR_HASH_SIZE]; 21634666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 2174adf0af6SSimon Wunderlich struct rtable fake_rtable; 2184df53d8bSPatrick McHardy bool nf_call_iptables; 2194df53d8bSPatrick McHardy bool nf_call_ip6tables; 2204df53d8bSPatrick McHardy bool nf_call_arptables; 2214adf0af6SSimon Wunderlich #endif 222515853ccSstephen hemminger u16 group_fwd_mask; 223f2808d22SToshiaki Makita u16 group_fwd_mask_required; 224515853ccSstephen hemminger 2251da177e4SLinus Torvalds /* STP */ 2261da177e4SLinus Torvalds bridge_id designated_root; 2271da177e4SLinus Torvalds bridge_id bridge_id; 2281da177e4SLinus Torvalds u32 root_path_cost; 2291da177e4SLinus Torvalds unsigned long max_age; 2301da177e4SLinus Torvalds unsigned long hello_time; 2311da177e4SLinus Torvalds unsigned long forward_delay; 2321da177e4SLinus Torvalds unsigned long bridge_max_age; 2331da177e4SLinus Torvalds unsigned long ageing_time; 2341da177e4SLinus Torvalds unsigned long bridge_hello_time; 2351da177e4SLinus Torvalds unsigned long bridge_forward_delay; 2361da177e4SLinus Torvalds 237fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 238204177f3SToshiaki Makita bool group_addr_set; 2391da177e4SLinus Torvalds u16 root_port; 2409cde0708SStephen Hemminger 2419cde0708SStephen Hemminger enum { 2429cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 2439cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 2449cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 2459cde0708SStephen Hemminger } stp_enabled; 2469cde0708SStephen Hemminger 2471da177e4SLinus Torvalds unsigned char topology_change; 2481da177e4SLinus Torvalds unsigned char topology_change_detected; 2491da177e4SLinus Torvalds 250eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 251eb1d1641SHerbert Xu unsigned char multicast_router; 252eb1d1641SHerbert Xu 253eb1d1641SHerbert Xu u8 multicast_disabled:1; 254c5c23260SHerbert Xu u8 multicast_querier:1; 2551c8ad5bfSCong Wang u8 multicast_query_use_ifaddr:1; 256eb1d1641SHerbert Xu 257eb1d1641SHerbert Xu u32 hash_elasticity; 258eb1d1641SHerbert Xu u32 hash_max; 259eb1d1641SHerbert Xu 260eb1d1641SHerbert Xu u32 multicast_last_member_count; 261eb1d1641SHerbert Xu u32 multicast_startup_query_count; 262eb1d1641SHerbert Xu 263eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 264eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 265eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 266eb1d1641SHerbert Xu unsigned long multicast_query_interval; 267eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 268eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 269eb1d1641SHerbert Xu 270eb1d1641SHerbert Xu spinlock_t multicast_lock; 271e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 272eb1d1641SHerbert Xu struct hlist_head router_list; 273eb1d1641SHerbert Xu 274eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 27590010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 27690010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 277dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 278cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 27990010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 28090010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 281dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 282cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 283eb1d1641SHerbert Xu #endif 284eb1d1641SHerbert Xu 2851da177e4SLinus Torvalds struct timer_list hello_timer; 2861da177e4SLinus Torvalds struct timer_list tcn_timer; 2871da177e4SLinus Torvalds struct timer_list topology_change_timer; 2881da177e4SLinus Torvalds struct timer_list gc_timer; 28943b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 290e028e4b8SVlad Yasevich u32 auto_cnt; 291243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 292243a2e63SVlad Yasevich u8 vlan_enabled; 2938580e211SToshiaki Makita __be16 vlan_proto; 29496a20d9dSVlad Yasevich u16 default_pvid; 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; 30193fdd47eSHerbert Xu 30232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 303eb1d1641SHerbert Xu int igmp; 304eb1d1641SHerbert Xu int mrouters_only; 30532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 30693fdd47eSHerbert Xu 30793fdd47eSHerbert Xu u16 frag_max_size; 308842a9ae0SJouni Malinen bool proxyarp_replied; 30993fdd47eSHerbert Xu 31020adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 31120adfa1aSVlad Yasevich bool vlan_filtered; 31220adfa1aSVlad Yasevich #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 /* called under bridge lock */ 3391da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 3401da177e4SLinus Torvalds { 3411da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 3421da177e4SLinus Torvalds } 3431da177e4SLinus Torvalds 3441da177e4SLinus Torvalds /* br_device.c */ 345348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 346348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 347348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 348cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 34991d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 35091d2c34aSHerbert Xu struct sk_buff *skb) 35191d2c34aSHerbert Xu { 35291d2c34aSHerbert Xu struct netpoll *np = p->np; 35391d2c34aSHerbert Xu 35491d2c34aSHerbert Xu if (np) 35591d2c34aSHerbert Xu netpoll_send_skb(np, skb); 35691d2c34aSHerbert Xu } 35791d2c34aSHerbert Xu 358a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 359348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 36091d2c34aSHerbert Xu #else 3619f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 36291d2c34aSHerbert Xu struct sk_buff *skb) 36391d2c34aSHerbert Xu { 36491d2c34aSHerbert Xu } 36591d2c34aSHerbert Xu 366a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 36791d2c34aSHerbert Xu { 36891d2c34aSHerbert Xu return 0; 36991d2c34aSHerbert Xu } 37091d2c34aSHerbert Xu 37191d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 37291d2c34aSHerbert Xu { 37391d2c34aSHerbert Xu } 374cfb478daSstephen hemminger #endif 3751da177e4SLinus Torvalds 3761da177e4SLinus Torvalds /* br_fdb.c */ 377348662a1SJoe Perches int br_fdb_init(void); 378348662a1SJoe Perches void br_fdb_fini(void); 379348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 380424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 381424bb9c9SToshiaki Makita const struct net_bridge_port *p, 382424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 383348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 384348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 385348662a1SJoe Perches void br_fdb_cleanup(unsigned long arg); 386348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 3871a620698SStephen Hemminger const struct net_bridge_port *p, int do_all); 388348662a1SJoe Perches struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, 389348662a1SJoe Perches const unsigned char *addr, __u16 vid); 390348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 391348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 392348662a1SJoe Perches unsigned long off); 393348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 394348662a1SJoe Perches const unsigned char *addr, u16 vid); 395348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 396a5642ab4SToshiaki Makita const unsigned char *addr, u16 vid, bool added_by_user); 39777162022SJohn Fastabend 398348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 399f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 400348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 401f6f6424bSJiri Pirko const unsigned char *addr, u16 vid, u16 nlh_flags); 402348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 4035d5eacb3SJamal Hadi Salim struct net_device *dev, struct net_device *fdev, int idx); 4048db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 4058db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 4063aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 4073aeb6617SJiri Pirko const unsigned char *addr, u16 vid); 4083aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 4093aeb6617SJiri Pirko const unsigned char *addr, u16 vid); 4101da177e4SLinus Torvalds 4111da177e4SLinus Torvalds /* br_forward.c */ 412348662a1SJoe Perches void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb); 413348662a1SJoe Perches int br_dev_queue_push_xmit(struct sk_buff *skb); 414348662a1SJoe Perches void br_forward(const struct net_bridge_port *to, 4157f7708f0SMichael Braun struct sk_buff *skb, struct sk_buff *skb0); 416348662a1SJoe Perches int br_forward_finish(struct sk_buff *skb); 417348662a1SJoe Perches void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast); 418348662a1SJoe Perches void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, 419867a5943SVlad Yasevich struct sk_buff *skb2, bool unicast); 4201da177e4SLinus Torvalds 4211da177e4SLinus Torvalds /* br_if.c */ 422348662a1SJoe Perches void br_port_carrier_check(struct net_bridge_port *p); 423348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 424348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 425348662a1SJoe Perches int br_add_if(struct net_bridge *br, struct net_device *dev); 426348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 427348662a1SJoe Perches int br_min_mtu(const struct net_bridge *br); 428348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 429c8f44affSMichał Mirosław netdev_features_t features); 430e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 4312796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 4321da177e4SLinus Torvalds 4331da177e4SLinus Torvalds /* br_input.c */ 434348662a1SJoe Perches int br_handle_frame_finish(struct sk_buff *skb); 435348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 4361da177e4SLinus Torvalds 437859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 438859828c0SJiri Pirko { 439859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 440859828c0SJiri Pirko } 441859828c0SJiri Pirko 442859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 443859828c0SJiri Pirko { 444859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 445859828c0SJiri Pirko } 446859828c0SJiri Pirko 4471da177e4SLinus Torvalds /* br_ioctl.c */ 448348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 449348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 450348662a1SJoe Perches void __user *arg); 4511da177e4SLinus Torvalds 452eb1d1641SHerbert Xu /* br_multicast.c */ 453eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 4542ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 455348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 456fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 457348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 458eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 459348662a1SJoe Perches void br_multicast_add_port(struct net_bridge_port *port); 460348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 461348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 462348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 463348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 464348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 465348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 466348662a1SJoe Perches void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 4675cb5e947SHerbert Xu struct sk_buff *skb); 468348662a1SJoe Perches void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 4695cb5e947SHerbert Xu struct sk_buff *skb, struct sk_buff *skb2); 470348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 471348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 472348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 473348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 474348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 475348662a1SJoe Perches struct net_bridge_mdb_entry * 476348662a1SJoe Perches br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); 477348662a1SJoe Perches struct net_bridge_mdb_entry * 478348662a1SJoe Perches br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, 479348662a1SJoe Perches struct br_ip *group); 480348662a1SJoe Perches void br_multicast_free_pg(struct rcu_head *head); 481348662a1SJoe Perches struct net_bridge_port_group * 482348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 483762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 484ccb1c31aSAmerigo Wang unsigned char state); 485348662a1SJoe Perches void br_mdb_init(void); 486348662a1SJoe Perches void br_mdb_uninit(void); 487348662a1SJoe Perches void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 48837a393bcSCong Wang struct br_ip *group, int type); 48985b35269SSridhar Samudrala 490cfd56754SCong Wang #define mlock_dereference(X, br) \ 491cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 492cfd56754SCong Wang 49385b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 49485b35269SSridhar Samudrala { 49585b35269SSridhar Samudrala return br->multicast_router == 2 || 49685b35269SSridhar Samudrala (br->multicast_router == 1 && 49785b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 49885b35269SSridhar Samudrala } 499b00589afSLinus Lüssing 500cc0fdd80SLinus Lüssing static inline bool 501cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 50290010b36SLinus Lüssing struct bridge_mcast_other_query *querier) 503b00589afSLinus Lüssing { 504cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 505cc0fdd80SLinus Lüssing (br->multicast_querier || timer_pending(&querier->timer)); 506cc0fdd80SLinus Lüssing } 507cc0fdd80SLinus Lüssing 508cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 509cc0fdd80SLinus Lüssing struct ethhdr *eth) 510cc0fdd80SLinus Lüssing { 511cc0fdd80SLinus Lüssing switch (eth->h_proto) { 512cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 51390010b36SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip4_other_query); 514cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 515cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 51690010b36SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip6_other_query); 517cc0fdd80SLinus Lüssing #endif 518cc0fdd80SLinus Lüssing default: 519cc0fdd80SLinus Lüssing return false; 520cc0fdd80SLinus Lüssing } 521b00589afSLinus Lüssing } 522eb1d1641SHerbert Xu #else 523eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 524eb1d1641SHerbert Xu struct net_bridge_port *port, 52506499098SVlad Yasevich struct sk_buff *skb, 52606499098SVlad Yasevich u16 vid) 527eb1d1641SHerbert Xu { 528eb1d1641SHerbert Xu return 0; 529eb1d1641SHerbert Xu } 530eb1d1641SHerbert Xu 531eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 532fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 533eb1d1641SHerbert Xu { 534eb1d1641SHerbert Xu return NULL; 535eb1d1641SHerbert Xu } 536eb1d1641SHerbert Xu 537eb1d1641SHerbert Xu static inline void br_multicast_add_port(struct net_bridge_port *port) 538eb1d1641SHerbert Xu { 539eb1d1641SHerbert Xu } 540eb1d1641SHerbert Xu 541eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 542eb1d1641SHerbert Xu { 543eb1d1641SHerbert Xu } 544eb1d1641SHerbert Xu 545eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 546eb1d1641SHerbert Xu { 547eb1d1641SHerbert Xu } 548eb1d1641SHerbert Xu 549eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 550eb1d1641SHerbert Xu { 551eb1d1641SHerbert Xu } 552eb1d1641SHerbert Xu 553eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 554eb1d1641SHerbert Xu { 555eb1d1641SHerbert Xu } 556eb1d1641SHerbert Xu 557eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 558eb1d1641SHerbert Xu { 559eb1d1641SHerbert Xu } 560eb1d1641SHerbert Xu 561eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 562eb1d1641SHerbert Xu { 563eb1d1641SHerbert Xu } 5645cb5e947SHerbert Xu 5655cb5e947SHerbert Xu static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 5665cb5e947SHerbert Xu struct sk_buff *skb) 5675cb5e947SHerbert Xu { 5685cb5e947SHerbert Xu } 5695cb5e947SHerbert Xu 5705cb5e947SHerbert Xu static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 5715cb5e947SHerbert Xu struct sk_buff *skb, 5725cb5e947SHerbert Xu struct sk_buff *skb2) 5735cb5e947SHerbert Xu { 5745cb5e947SHerbert Xu } 575eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 576eb1d1641SHerbert Xu { 57785b35269SSridhar Samudrala return 0; 578eb1d1641SHerbert Xu } 579cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 580cc0fdd80SLinus Lüssing struct ethhdr *eth) 581b00589afSLinus Lüssing { 582b00589afSLinus Lüssing return false; 583b00589afSLinus Lüssing } 584fdb184d1SRami Rosen static inline void br_mdb_init(void) 585fdb184d1SRami Rosen { 586fdb184d1SRami Rosen } 587fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 588fdb184d1SRami Rosen { 589fdb184d1SRami Rosen } 59085b35269SSridhar Samudrala #endif 591eb1d1641SHerbert Xu 592243a2e63SVlad Yasevich /* br_vlan.c */ 593243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 594348662a1SJoe Perches bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v, 59578851988SVlad Yasevich struct sk_buff *skb, u16 *vid); 596348662a1SJoe Perches bool br_allowed_egress(struct net_bridge *br, const struct net_port_vlans *v, 59785f46c6bSVlad Yasevich const struct sk_buff *skb); 598e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 599348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 60078851988SVlad Yasevich const struct net_port_vlans *v, 60178851988SVlad Yasevich struct sk_buff *skb); 602348662a1SJoe Perches int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); 603348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 604348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 6052b292fb4SToshiaki Makita bool br_vlan_find(struct net_bridge *br, u16 vid); 606204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 607348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 608204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 6095be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 61096a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 611348662a1SJoe Perches int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); 612348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 613348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 614348662a1SJoe Perches bool nbp_vlan_find(struct net_bridge_port *port, u16 vid); 6155be5a2dfSVlad Yasevich int nbp_vlan_init(struct net_bridge_port *port); 616a37b85c9SVlad Yasevich 617a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 618a37b85c9SVlad Yasevich const struct net_bridge *br) 619a37b85c9SVlad Yasevich { 6201690be63SVlad Yasevich return rcu_dereference_rtnl(br->vlan_info); 621a37b85c9SVlad Yasevich } 622a37b85c9SVlad Yasevich 623a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 624a37b85c9SVlad Yasevich const struct net_bridge_port *p) 625a37b85c9SVlad Yasevich { 6261690be63SVlad Yasevich return rcu_dereference_rtnl(p->vlan_info); 627a37b85c9SVlad Yasevich } 628a37b85c9SVlad Yasevich 629a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 630a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 631a37b85c9SVlad Yasevich */ 632a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 633a37b85c9SVlad Yasevich { 634a37b85c9SVlad Yasevich int err = 0; 635a37b85c9SVlad Yasevich 636df8a39deSJiri Pirko if (skb_vlan_tag_present(skb)) 637df8a39deSJiri Pirko *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; 638a37b85c9SVlad Yasevich else { 639a37b85c9SVlad Yasevich *vid = 0; 640a37b85c9SVlad Yasevich err = -EINVAL; 641a37b85c9SVlad Yasevich } 642a37b85c9SVlad Yasevich 643a37b85c9SVlad Yasevich return err; 644a37b85c9SVlad Yasevich } 64578851988SVlad Yasevich 64678851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 64778851988SVlad Yasevich { 6485be5a2dfSVlad Yasevich if (!v) 6495be5a2dfSVlad Yasevich return 0; 6505be5a2dfSVlad Yasevich 65178851988SVlad Yasevich smp_rmb(); 6523df6bf45SVlad Yasevich return v->pvid; 65378851988SVlad Yasevich } 65478851988SVlad Yasevich 6552796d0c6SVlad Yasevich static inline int br_vlan_enabled(struct net_bridge *br) 6562796d0c6SVlad Yasevich { 6572796d0c6SVlad Yasevich return br->vlan_enabled; 6582796d0c6SVlad Yasevich } 659243a2e63SVlad Yasevich #else 660a37b85c9SVlad Yasevich static inline bool br_allowed_ingress(struct net_bridge *br, 661a37b85c9SVlad Yasevich struct net_port_vlans *v, 66278851988SVlad Yasevich struct sk_buff *skb, 66378851988SVlad Yasevich u16 *vid) 664a37b85c9SVlad Yasevich { 665a37b85c9SVlad Yasevich return true; 666a37b85c9SVlad Yasevich } 667a37b85c9SVlad Yasevich 66885f46c6bSVlad Yasevich static inline bool br_allowed_egress(struct net_bridge *br, 66985f46c6bSVlad Yasevich const struct net_port_vlans *v, 67085f46c6bSVlad Yasevich const struct sk_buff *skb) 67185f46c6bSVlad Yasevich { 67285f46c6bSVlad Yasevich return true; 67385f46c6bSVlad Yasevich } 67485f46c6bSVlad Yasevich 675e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 676e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 677e0d7968aSToshiaki Makita { 678e0d7968aSToshiaki Makita return true; 679e0d7968aSToshiaki Makita } 680e0d7968aSToshiaki Makita 68178851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 68278851988SVlad Yasevich const struct net_port_vlans *v, 68378851988SVlad Yasevich struct sk_buff *skb) 68478851988SVlad Yasevich { 68578851988SVlad Yasevich return skb; 68678851988SVlad Yasevich } 68778851988SVlad Yasevich 688552406c4SVlad Yasevich static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) 689243a2e63SVlad Yasevich { 690243a2e63SVlad Yasevich return -EOPNOTSUPP; 691243a2e63SVlad Yasevich } 692243a2e63SVlad Yasevich 693243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 694243a2e63SVlad Yasevich { 695243a2e63SVlad Yasevich return -EOPNOTSUPP; 696243a2e63SVlad Yasevich } 697243a2e63SVlad Yasevich 698243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 699243a2e63SVlad Yasevich { 700243a2e63SVlad Yasevich } 701243a2e63SVlad Yasevich 7022b292fb4SToshiaki Makita static inline bool br_vlan_find(struct net_bridge *br, u16 vid) 7032b292fb4SToshiaki Makita { 7042b292fb4SToshiaki Makita return false; 7052b292fb4SToshiaki Makita } 7062b292fb4SToshiaki Makita 707204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 708204177f3SToshiaki Makita { 709204177f3SToshiaki Makita } 710204177f3SToshiaki Makita 7115be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 7128580e211SToshiaki Makita { 7135be5a2dfSVlad Yasevich return 0; 7148580e211SToshiaki Makita } 7158580e211SToshiaki Makita 716552406c4SVlad Yasevich static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) 717243a2e63SVlad Yasevich { 718243a2e63SVlad Yasevich return -EOPNOTSUPP; 719243a2e63SVlad Yasevich } 720243a2e63SVlad Yasevich 721243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 722243a2e63SVlad Yasevich { 723243a2e63SVlad Yasevich return -EOPNOTSUPP; 724243a2e63SVlad Yasevich } 725243a2e63SVlad Yasevich 726243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 727243a2e63SVlad Yasevich { 728243a2e63SVlad Yasevich } 729243a2e63SVlad Yasevich 730a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 731a37b85c9SVlad Yasevich const struct net_bridge *br) 732a37b85c9SVlad Yasevich { 733a37b85c9SVlad Yasevich return NULL; 734a37b85c9SVlad Yasevich } 735a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 736a37b85c9SVlad Yasevich const struct net_bridge_port *p) 737a37b85c9SVlad Yasevich { 738a37b85c9SVlad Yasevich return NULL; 739a37b85c9SVlad Yasevich } 740a37b85c9SVlad Yasevich 741bc9a25d2SVlad Yasevich static inline bool nbp_vlan_find(struct net_bridge_port *port, u16 vid) 742bc9a25d2SVlad Yasevich { 743bc9a25d2SVlad Yasevich return false; 744bc9a25d2SVlad Yasevich } 745bc9a25d2SVlad Yasevich 7465be5a2dfSVlad Yasevich static inline int nbp_vlan_init(struct net_bridge_port *port) 7475be5a2dfSVlad Yasevich { 7485be5a2dfSVlad Yasevich return 0; 7495be5a2dfSVlad Yasevich } 7505be5a2dfSVlad Yasevich 75178851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 752a37b85c9SVlad Yasevich { 753a37b85c9SVlad Yasevich return 0; 754a37b85c9SVlad Yasevich } 75578851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 75678851988SVlad Yasevich { 7573df6bf45SVlad Yasevich return 0; 75878851988SVlad Yasevich } 7592796d0c6SVlad Yasevich 760d4f0e095SAlexei Starovoitov static inline int br_vlan_enabled(struct net_bridge *br) 7612796d0c6SVlad Yasevich { 7622796d0c6SVlad Yasevich return 0; 7632796d0c6SVlad Yasevich } 764243a2e63SVlad Yasevich #endif 765243a2e63SVlad Yasevich 7661da177e4SLinus Torvalds /* br_netfilter.c */ 76734666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 76834666d46SPablo Neira Ayuso int br_nf_core_init(void); 76934666d46SPablo Neira Ayuso void br_nf_core_fini(void); 770348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 771c0909713SStephen Hemminger #else 77234666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 77334666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 7744adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 775c0909713SStephen Hemminger #endif 7761da177e4SLinus Torvalds 7771da177e4SLinus Torvalds /* br_stp.c */ 778348662a1SJoe Perches void br_log_state(const struct net_bridge_port *p); 779775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 780348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 781348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 782348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 7831da177e4SLinus Torvalds 784348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 785348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 786348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 787348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 78814f98f25Sstephen hemminger 78914f98f25Sstephen hemminger 7901da177e4SLinus Torvalds /* br_stp_if.c */ 791348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 792348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 793348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 794348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 795348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 796348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 797348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 798348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 799348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 800348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 801348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 8021da177e4SLinus Torvalds 8031da177e4SLinus Torvalds /* br_stp_bpdu.c */ 8047c85fbf0SPatrick McHardy struct stp_proto; 805348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 8067c85fbf0SPatrick McHardy struct net_device *dev); 8071da177e4SLinus Torvalds 8081da177e4SLinus Torvalds /* br_stp_timer.c */ 809348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 810348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 811348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 8121da177e4SLinus Torvalds 8131da177e4SLinus Torvalds /* br.c */ 814e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 815da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 816da678292SMichał Mirosław #endif 8171da177e4SLinus Torvalds 81811dc1f36SStephen Hemminger /* br_netlink.c */ 819149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 820348662a1SJoe Perches int br_netlink_init(void); 821348662a1SJoe Perches void br_netlink_fini(void); 822348662a1SJoe Perches void br_ifinfo_notify(int event, struct net_bridge_port *port); 823add511b3SRoopa Prabhu int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 824add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 825348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 826348662a1SJoe Perches u32 filter_mask); 82711dc1f36SStephen Hemminger 8281da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 8291da177e4SLinus Torvalds /* br_sysfs_if.c */ 83052cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 831348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 832348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 8331da177e4SLinus Torvalds 8341da177e4SLinus Torvalds /* br_sysfs_br.c */ 835348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 836348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 8371da177e4SLinus Torvalds 8381da177e4SLinus Torvalds #else 8391da177e4SLinus Torvalds 8400cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 8410cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 8420cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 8430cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 8441da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 8451da177e4SLinus Torvalds 8461da177e4SLinus Torvalds #endif 847