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, 10393859b13SJiri Pirko added_by_user:1; 1042ba071ecSVlad Yasevich __u16 vlan_id; 1051da177e4SLinus Torvalds }; 1061da177e4SLinus Torvalds 107eb1d1641SHerbert Xu struct net_bridge_port_group { 108eb1d1641SHerbert Xu struct net_bridge_port *port; 109e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 110eb1d1641SHerbert Xu struct hlist_node mglist; 111eb1d1641SHerbert Xu struct rcu_head rcu; 112eb1d1641SHerbert Xu struct timer_list timer; 1138ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 114ccb1c31aSAmerigo Wang unsigned char state; 115eb1d1641SHerbert Xu }; 116eb1d1641SHerbert Xu 117eb1d1641SHerbert Xu struct net_bridge_mdb_entry 118eb1d1641SHerbert Xu { 119eb1d1641SHerbert Xu struct hlist_node hlist[2]; 120eb1d1641SHerbert Xu struct net_bridge *br; 121e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 122eb1d1641SHerbert Xu struct rcu_head rcu; 123eb1d1641SHerbert Xu struct timer_list timer; 1248ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 1258a870178SHerbert Xu bool mglist; 126eb1d1641SHerbert Xu }; 127eb1d1641SHerbert Xu 128eb1d1641SHerbert Xu struct net_bridge_mdb_htable 129eb1d1641SHerbert Xu { 130eb1d1641SHerbert Xu struct hlist_head *mhash; 131eb1d1641SHerbert Xu struct rcu_head rcu; 132eb1d1641SHerbert Xu struct net_bridge_mdb_htable *old; 133eb1d1641SHerbert Xu u32 size; 134eb1d1641SHerbert Xu u32 max; 135eb1d1641SHerbert Xu u32 secret; 136eb1d1641SHerbert Xu u32 ver; 137eb1d1641SHerbert Xu }; 138eb1d1641SHerbert Xu 1391da177e4SLinus Torvalds struct net_bridge_port 1401da177e4SLinus Torvalds { 1411da177e4SLinus Torvalds struct net_bridge *br; 1421da177e4SLinus Torvalds struct net_device *dev; 1431da177e4SLinus Torvalds struct list_head list; 1441da177e4SLinus Torvalds 1451da177e4SLinus Torvalds /* STP */ 1461da177e4SLinus Torvalds u8 priority; 1471da177e4SLinus Torvalds u8 state; 1481da177e4SLinus Torvalds u16 port_no; 1491da177e4SLinus Torvalds unsigned char topology_change_ack; 1501da177e4SLinus Torvalds unsigned char config_pending; 1511da177e4SLinus Torvalds port_id port_id; 1521da177e4SLinus Torvalds port_id designated_port; 1531da177e4SLinus Torvalds bridge_id designated_root; 1541da177e4SLinus Torvalds bridge_id designated_bridge; 1551da177e4SLinus Torvalds u32 path_cost; 1561da177e4SLinus Torvalds u32 designated_cost; 1570c03150eSstephen hemminger unsigned long designated_age; 1581da177e4SLinus Torvalds 1591da177e4SLinus Torvalds struct timer_list forward_delay_timer; 1601da177e4SLinus Torvalds struct timer_list hold_timer; 1611da177e4SLinus Torvalds struct timer_list message_age_timer; 1621da177e4SLinus Torvalds struct kobject kobj; 1631da177e4SLinus Torvalds struct rcu_head rcu; 1643982d3d2SFischer, Anna 1653982d3d2SFischer, Anna unsigned long flags; 1663982d3d2SFischer, Anna #define BR_HAIRPIN_MODE 0x00000001 167a2e01a65Sstephen hemminger #define BR_BPDU_GUARD 0x00000002 1681007dd1aSstephen hemminger #define BR_ROOT_BLOCK 0x00000004 169c2d3babfSDavid S. Miller #define BR_MULTICAST_FAST_LEAVE 0x00000008 1708f3359bdSstephen hemminger #define BR_ADMIN_COST 0x00000010 1719ba18891SVlad Yasevich #define BR_LEARNING 0x00000020 172867a5943SVlad Yasevich #define BR_FLOOD 0x00000040 173e028e4b8SVlad Yasevich #define BR_AUTO_MASK (BR_FLOOD | BR_LEARNING) 174f3a6ddf1SVlad Yasevich #define BR_PROMISC 0x00000080 17595850116SKyeyoon Park #define BR_PROXYARP 0x00000100 176eb1d1641SHerbert Xu 177eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 17890010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 179cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 18090010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 181cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 182eb1d1641SHerbert Xu unsigned char multicast_router; 183eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 184eb1d1641SHerbert Xu struct hlist_head mglist; 185eb1d1641SHerbert Xu struct hlist_node rlist; 186eb1d1641SHerbert Xu #endif 187e0f43752SSimon Arlott 188e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 189e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 190e0f43752SSimon Arlott #endif 19191d2c34aSHerbert Xu 19291d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 19391d2c34aSHerbert Xu struct netpoll *np; 19491d2c34aSHerbert Xu #endif 195243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 196243a2e63SVlad Yasevich struct net_port_vlans __rcu *vlan_info; 197243a2e63SVlad Yasevich #endif 1981da177e4SLinus Torvalds }; 1991da177e4SLinus Torvalds 200e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 201f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 202e028e4b8SVlad Yasevich 203f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 204f350a0a8SJiri Pirko 205b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 206b5ed54e9Sstephen hemminger { 207716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 208b5ed54e9Sstephen hemminger } 209b5ed54e9Sstephen hemminger 2101fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 211b5ed54e9Sstephen hemminger { 212ec1e5610SEric Dumazet return br_port_exists(dev) ? 213ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 214b5ed54e9Sstephen hemminger } 215b5ed54e9Sstephen hemminger 2161da177e4SLinus Torvalds struct net_bridge 2171da177e4SLinus Torvalds { 2181da177e4SLinus Torvalds spinlock_t lock; 2191da177e4SLinus Torvalds struct list_head port_list; 2201da177e4SLinus Torvalds struct net_device *dev; 22114bb4789Sstephen hemminger 2228f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 2231da177e4SLinus Torvalds spinlock_t hash_lock; 2241da177e4SLinus Torvalds struct hlist_head hash[BR_HASH_SIZE]; 22534666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 2264adf0af6SSimon Wunderlich struct rtable fake_rtable; 2274df53d8bSPatrick McHardy bool nf_call_iptables; 2284df53d8bSPatrick McHardy bool nf_call_ip6tables; 2294df53d8bSPatrick McHardy bool nf_call_arptables; 2304adf0af6SSimon Wunderlich #endif 231515853ccSstephen hemminger u16 group_fwd_mask; 232f2808d22SToshiaki Makita u16 group_fwd_mask_required; 233515853ccSstephen hemminger 2341da177e4SLinus Torvalds /* STP */ 2351da177e4SLinus Torvalds bridge_id designated_root; 2361da177e4SLinus Torvalds bridge_id bridge_id; 2371da177e4SLinus Torvalds u32 root_path_cost; 2381da177e4SLinus Torvalds unsigned long max_age; 2391da177e4SLinus Torvalds unsigned long hello_time; 2401da177e4SLinus Torvalds unsigned long forward_delay; 2411da177e4SLinus Torvalds unsigned long bridge_max_age; 2421da177e4SLinus Torvalds unsigned long ageing_time; 2431da177e4SLinus Torvalds unsigned long bridge_hello_time; 2441da177e4SLinus Torvalds unsigned long bridge_forward_delay; 2451da177e4SLinus Torvalds 246fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 247204177f3SToshiaki Makita bool group_addr_set; 2481da177e4SLinus Torvalds u16 root_port; 2499cde0708SStephen Hemminger 2509cde0708SStephen Hemminger enum { 2519cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 2529cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 2539cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 2549cde0708SStephen Hemminger } stp_enabled; 2559cde0708SStephen Hemminger 2561da177e4SLinus Torvalds unsigned char topology_change; 2571da177e4SLinus Torvalds unsigned char topology_change_detected; 2581da177e4SLinus Torvalds 259eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 260eb1d1641SHerbert Xu unsigned char multicast_router; 261eb1d1641SHerbert Xu 262eb1d1641SHerbert Xu u8 multicast_disabled:1; 263c5c23260SHerbert Xu u8 multicast_querier:1; 2641c8ad5bfSCong Wang u8 multicast_query_use_ifaddr:1; 265eb1d1641SHerbert Xu 266eb1d1641SHerbert Xu u32 hash_elasticity; 267eb1d1641SHerbert Xu u32 hash_max; 268eb1d1641SHerbert Xu 269eb1d1641SHerbert Xu u32 multicast_last_member_count; 270eb1d1641SHerbert Xu u32 multicast_startup_query_count; 271eb1d1641SHerbert Xu 272eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 273eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 274eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 275eb1d1641SHerbert Xu unsigned long multicast_query_interval; 276eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 277eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 278eb1d1641SHerbert Xu 279eb1d1641SHerbert Xu spinlock_t multicast_lock; 280e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 281eb1d1641SHerbert Xu struct hlist_head router_list; 282eb1d1641SHerbert Xu 283eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 28490010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 28590010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 286dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 287cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 28890010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 28990010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 290dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 291cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 292eb1d1641SHerbert Xu #endif 293eb1d1641SHerbert Xu 2941da177e4SLinus Torvalds struct timer_list hello_timer; 2951da177e4SLinus Torvalds struct timer_list tcn_timer; 2961da177e4SLinus Torvalds struct timer_list topology_change_timer; 2971da177e4SLinus Torvalds struct timer_list gc_timer; 29843b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 299e028e4b8SVlad Yasevich u32 auto_cnt; 300243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 301243a2e63SVlad Yasevich u8 vlan_enabled; 3028580e211SToshiaki Makita __be16 vlan_proto; 30396a20d9dSVlad Yasevich u16 default_pvid; 304243a2e63SVlad Yasevich struct net_port_vlans __rcu *vlan_info; 305243a2e63SVlad Yasevich #endif 3061da177e4SLinus Torvalds }; 3071da177e4SLinus Torvalds 30868b7c895SHerbert Xu struct br_input_skb_cb { 30968b7c895SHerbert Xu struct net_device *brdev; 31093fdd47eSHerbert Xu 31132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 312eb1d1641SHerbert Xu int igmp; 313eb1d1641SHerbert Xu int mrouters_only; 31432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 31593fdd47eSHerbert Xu 31693fdd47eSHerbert Xu u16 frag_max_size; 31793fdd47eSHerbert Xu 31820adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 31920adfa1aSVlad Yasevich bool vlan_filtered; 32020adfa1aSVlad Yasevich #endif 32168b7c895SHerbert Xu }; 32268b7c895SHerbert Xu 32368b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 32468b7c895SHerbert Xu 32532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 32632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 32732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 32832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 32932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 33032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 33128a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 33228a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 33328a16c97Sstephen hemminger 33428a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 33528a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 33628a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 33728a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 33828a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 33928a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 34028a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 34128a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 34228a16c97Sstephen hemminger 34328a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 34428a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 34528a16c97Sstephen hemminger 3461da177e4SLinus Torvalds /* called under bridge lock */ 3471da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 3481da177e4SLinus Torvalds { 3491da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 3501da177e4SLinus Torvalds } 3511da177e4SLinus Torvalds 3521da177e4SLinus Torvalds /* br_device.c */ 353348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 354348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 355348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 356cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 35791d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 35891d2c34aSHerbert Xu struct sk_buff *skb) 35991d2c34aSHerbert Xu { 36091d2c34aSHerbert Xu struct netpoll *np = p->np; 36191d2c34aSHerbert Xu 36291d2c34aSHerbert Xu if (np) 36391d2c34aSHerbert Xu netpoll_send_skb(np, skb); 36491d2c34aSHerbert Xu } 36591d2c34aSHerbert Xu 366a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 367348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 36891d2c34aSHerbert Xu #else 3699f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 37091d2c34aSHerbert Xu struct sk_buff *skb) 37191d2c34aSHerbert Xu { 37291d2c34aSHerbert Xu } 37391d2c34aSHerbert Xu 374a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 37591d2c34aSHerbert Xu { 37691d2c34aSHerbert Xu return 0; 37791d2c34aSHerbert Xu } 37891d2c34aSHerbert Xu 37991d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 38091d2c34aSHerbert Xu { 38191d2c34aSHerbert Xu } 382cfb478daSstephen hemminger #endif 3831da177e4SLinus Torvalds 3841da177e4SLinus Torvalds /* br_fdb.c */ 385348662a1SJoe Perches int br_fdb_init(void); 386348662a1SJoe Perches void br_fdb_fini(void); 387348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 388424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 389424bb9c9SToshiaki Makita const struct net_bridge_port *p, 390424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 391348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 392348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 393348662a1SJoe Perches void br_fdb_cleanup(unsigned long arg); 394348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 3951a620698SStephen Hemminger const struct net_bridge_port *p, int do_all); 396348662a1SJoe Perches struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, 397348662a1SJoe Perches const unsigned char *addr, __u16 vid); 398348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 399348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 400348662a1SJoe Perches unsigned long off); 401348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 402348662a1SJoe Perches const unsigned char *addr, u16 vid); 403348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 404a5642ab4SToshiaki Makita const unsigned char *addr, u16 vid, bool added_by_user); 40577162022SJohn Fastabend 406348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 407348662a1SJoe Perches struct net_device *dev, const unsigned char *addr); 408348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 409348662a1SJoe Perches const unsigned char *addr, u16 nlh_flags); 410348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 4115d5eacb3SJamal Hadi Salim struct net_device *dev, struct net_device *fdev, int idx); 4128db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 4138db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 4141da177e4SLinus Torvalds 4151da177e4SLinus Torvalds /* br_forward.c */ 416348662a1SJoe Perches void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb); 417348662a1SJoe Perches int br_dev_queue_push_xmit(struct sk_buff *skb); 418348662a1SJoe Perches void br_forward(const struct net_bridge_port *to, 4197f7708f0SMichael Braun struct sk_buff *skb, struct sk_buff *skb0); 420348662a1SJoe Perches int br_forward_finish(struct sk_buff *skb); 421348662a1SJoe Perches void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast); 422348662a1SJoe Perches void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, 423867a5943SVlad Yasevich struct sk_buff *skb2, bool unicast); 4241da177e4SLinus Torvalds 4251da177e4SLinus Torvalds /* br_if.c */ 426348662a1SJoe Perches void br_port_carrier_check(struct net_bridge_port *p); 427348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 428348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 429348662a1SJoe Perches int br_add_if(struct net_bridge *br, struct net_device *dev); 430348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 431348662a1SJoe Perches int br_min_mtu(const struct net_bridge *br); 432348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 433c8f44affSMichał Mirosław netdev_features_t features); 434e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 4352796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 4361da177e4SLinus Torvalds 4371da177e4SLinus Torvalds /* br_input.c */ 438348662a1SJoe Perches int br_handle_frame_finish(struct sk_buff *skb); 439348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 4401da177e4SLinus Torvalds 441859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 442859828c0SJiri Pirko { 443859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 444859828c0SJiri Pirko } 445859828c0SJiri Pirko 446859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 447859828c0SJiri Pirko { 448859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 449859828c0SJiri Pirko } 450859828c0SJiri Pirko 4511da177e4SLinus Torvalds /* br_ioctl.c */ 452348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 453348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 454348662a1SJoe Perches void __user *arg); 4551da177e4SLinus Torvalds 456eb1d1641SHerbert Xu /* br_multicast.c */ 457eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 4582ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 459348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 460fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 461348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 462eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 463348662a1SJoe Perches void br_multicast_add_port(struct net_bridge_port *port); 464348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 465348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 466348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 467348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 468348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 469348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 470348662a1SJoe Perches void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 4715cb5e947SHerbert Xu struct sk_buff *skb); 472348662a1SJoe Perches void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 4735cb5e947SHerbert Xu struct sk_buff *skb, struct sk_buff *skb2); 474348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 475348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 476348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 477348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 478348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 479348662a1SJoe Perches struct net_bridge_mdb_entry * 480348662a1SJoe Perches br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); 481348662a1SJoe Perches struct net_bridge_mdb_entry * 482348662a1SJoe Perches br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, 483348662a1SJoe Perches struct br_ip *group); 484348662a1SJoe Perches void br_multicast_free_pg(struct rcu_head *head); 485348662a1SJoe Perches struct net_bridge_port_group * 486348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 487762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 488ccb1c31aSAmerigo Wang unsigned char state); 489348662a1SJoe Perches void br_mdb_init(void); 490348662a1SJoe Perches void br_mdb_uninit(void); 491348662a1SJoe Perches void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 49237a393bcSCong Wang struct br_ip *group, int type); 49385b35269SSridhar Samudrala 494cfd56754SCong Wang #define mlock_dereference(X, br) \ 495cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 496cfd56754SCong Wang 49785b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 49885b35269SSridhar Samudrala { 49985b35269SSridhar Samudrala return br->multicast_router == 2 || 50085b35269SSridhar Samudrala (br->multicast_router == 1 && 50185b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 50285b35269SSridhar Samudrala } 503b00589afSLinus Lüssing 504cc0fdd80SLinus Lüssing static inline bool 505cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 50690010b36SLinus Lüssing struct bridge_mcast_other_query *querier) 507b00589afSLinus Lüssing { 508cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 509cc0fdd80SLinus Lüssing (br->multicast_querier || timer_pending(&querier->timer)); 510cc0fdd80SLinus Lüssing } 511cc0fdd80SLinus Lüssing 512cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 513cc0fdd80SLinus Lüssing struct ethhdr *eth) 514cc0fdd80SLinus Lüssing { 515cc0fdd80SLinus Lüssing switch (eth->h_proto) { 516cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 51790010b36SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip4_other_query); 518cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 519cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 52090010b36SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip6_other_query); 521cc0fdd80SLinus Lüssing #endif 522cc0fdd80SLinus Lüssing default: 523cc0fdd80SLinus Lüssing return false; 524cc0fdd80SLinus Lüssing } 525b00589afSLinus Lüssing } 526eb1d1641SHerbert Xu #else 527eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 528eb1d1641SHerbert Xu struct net_bridge_port *port, 52906499098SVlad Yasevich struct sk_buff *skb, 53006499098SVlad Yasevich u16 vid) 531eb1d1641SHerbert Xu { 532eb1d1641SHerbert Xu return 0; 533eb1d1641SHerbert Xu } 534eb1d1641SHerbert Xu 535eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 536fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 537eb1d1641SHerbert Xu { 538eb1d1641SHerbert Xu return NULL; 539eb1d1641SHerbert Xu } 540eb1d1641SHerbert Xu 541eb1d1641SHerbert Xu static inline void br_multicast_add_port(struct net_bridge_port *port) 542eb1d1641SHerbert Xu { 543eb1d1641SHerbert Xu } 544eb1d1641SHerbert Xu 545eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 546eb1d1641SHerbert Xu { 547eb1d1641SHerbert Xu } 548eb1d1641SHerbert Xu 549eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 550eb1d1641SHerbert Xu { 551eb1d1641SHerbert Xu } 552eb1d1641SHerbert Xu 553eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 554eb1d1641SHerbert Xu { 555eb1d1641SHerbert Xu } 556eb1d1641SHerbert Xu 557eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 558eb1d1641SHerbert Xu { 559eb1d1641SHerbert Xu } 560eb1d1641SHerbert Xu 561eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 562eb1d1641SHerbert Xu { 563eb1d1641SHerbert Xu } 564eb1d1641SHerbert Xu 565eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 566eb1d1641SHerbert Xu { 567eb1d1641SHerbert Xu } 5685cb5e947SHerbert Xu 5695cb5e947SHerbert Xu static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 5705cb5e947SHerbert Xu struct sk_buff *skb) 5715cb5e947SHerbert Xu { 5725cb5e947SHerbert Xu } 5735cb5e947SHerbert Xu 5745cb5e947SHerbert Xu static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 5755cb5e947SHerbert Xu struct sk_buff *skb, 5765cb5e947SHerbert Xu struct sk_buff *skb2) 5775cb5e947SHerbert Xu { 5785cb5e947SHerbert Xu } 579eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 580eb1d1641SHerbert Xu { 58185b35269SSridhar Samudrala return 0; 582eb1d1641SHerbert Xu } 583cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 584cc0fdd80SLinus Lüssing struct ethhdr *eth) 585b00589afSLinus Lüssing { 586b00589afSLinus Lüssing return false; 587b00589afSLinus Lüssing } 588fdb184d1SRami Rosen static inline void br_mdb_init(void) 589fdb184d1SRami Rosen { 590fdb184d1SRami Rosen } 591fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 592fdb184d1SRami Rosen { 593fdb184d1SRami Rosen } 59485b35269SSridhar Samudrala #endif 595eb1d1641SHerbert Xu 596243a2e63SVlad Yasevich /* br_vlan.c */ 597243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 598348662a1SJoe Perches bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v, 59978851988SVlad Yasevich struct sk_buff *skb, u16 *vid); 600348662a1SJoe Perches bool br_allowed_egress(struct net_bridge *br, const struct net_port_vlans *v, 60185f46c6bSVlad Yasevich const struct sk_buff *skb); 602e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 603348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 60478851988SVlad Yasevich const struct net_port_vlans *v, 60578851988SVlad Yasevich struct sk_buff *skb); 606348662a1SJoe Perches int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); 607348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 608348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 6092b292fb4SToshiaki Makita bool br_vlan_find(struct net_bridge *br, u16 vid); 610204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 611348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 612204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 6135be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 61496a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 615348662a1SJoe Perches int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); 616348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 617348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 618348662a1SJoe Perches bool nbp_vlan_find(struct net_bridge_port *port, u16 vid); 6195be5a2dfSVlad Yasevich int nbp_vlan_init(struct net_bridge_port *port); 620a37b85c9SVlad Yasevich 621a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 622a37b85c9SVlad Yasevich const struct net_bridge *br) 623a37b85c9SVlad Yasevich { 6241690be63SVlad Yasevich return rcu_dereference_rtnl(br->vlan_info); 625a37b85c9SVlad Yasevich } 626a37b85c9SVlad Yasevich 627a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 628a37b85c9SVlad Yasevich const struct net_bridge_port *p) 629a37b85c9SVlad Yasevich { 6301690be63SVlad Yasevich return rcu_dereference_rtnl(p->vlan_info); 631a37b85c9SVlad Yasevich } 632a37b85c9SVlad Yasevich 633a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 634a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 635a37b85c9SVlad Yasevich */ 636a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 637a37b85c9SVlad Yasevich { 638a37b85c9SVlad Yasevich int err = 0; 639a37b85c9SVlad Yasevich 640a37b85c9SVlad Yasevich if (vlan_tx_tag_present(skb)) 641a37b85c9SVlad Yasevich *vid = vlan_tx_tag_get(skb) & VLAN_VID_MASK; 642a37b85c9SVlad Yasevich else { 643a37b85c9SVlad Yasevich *vid = 0; 644a37b85c9SVlad Yasevich err = -EINVAL; 645a37b85c9SVlad Yasevich } 646a37b85c9SVlad Yasevich 647a37b85c9SVlad Yasevich return err; 648a37b85c9SVlad Yasevich } 64978851988SVlad Yasevich 65078851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 65178851988SVlad Yasevich { 6525be5a2dfSVlad Yasevich if (!v) 6535be5a2dfSVlad Yasevich return 0; 6545be5a2dfSVlad Yasevich 65578851988SVlad Yasevich smp_rmb(); 6563df6bf45SVlad Yasevich return v->pvid; 65778851988SVlad Yasevich } 65878851988SVlad Yasevich 6592796d0c6SVlad Yasevich static inline int br_vlan_enabled(struct net_bridge *br) 6602796d0c6SVlad Yasevich { 6612796d0c6SVlad Yasevich return br->vlan_enabled; 6622796d0c6SVlad Yasevich } 663243a2e63SVlad Yasevich #else 664a37b85c9SVlad Yasevich static inline bool br_allowed_ingress(struct net_bridge *br, 665a37b85c9SVlad Yasevich struct net_port_vlans *v, 66678851988SVlad Yasevich struct sk_buff *skb, 66778851988SVlad Yasevich u16 *vid) 668a37b85c9SVlad Yasevich { 669a37b85c9SVlad Yasevich return true; 670a37b85c9SVlad Yasevich } 671a37b85c9SVlad Yasevich 67285f46c6bSVlad Yasevich static inline bool br_allowed_egress(struct net_bridge *br, 67385f46c6bSVlad Yasevich const struct net_port_vlans *v, 67485f46c6bSVlad Yasevich const struct sk_buff *skb) 67585f46c6bSVlad Yasevich { 67685f46c6bSVlad Yasevich return true; 67785f46c6bSVlad Yasevich } 67885f46c6bSVlad Yasevich 679e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 680e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 681e0d7968aSToshiaki Makita { 682e0d7968aSToshiaki Makita return true; 683e0d7968aSToshiaki Makita } 684e0d7968aSToshiaki Makita 68578851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 68678851988SVlad Yasevich const struct net_port_vlans *v, 68778851988SVlad Yasevich struct sk_buff *skb) 68878851988SVlad Yasevich { 68978851988SVlad Yasevich return skb; 69078851988SVlad Yasevich } 69178851988SVlad Yasevich 692552406c4SVlad Yasevich static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) 693243a2e63SVlad Yasevich { 694243a2e63SVlad Yasevich return -EOPNOTSUPP; 695243a2e63SVlad Yasevich } 696243a2e63SVlad Yasevich 697243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 698243a2e63SVlad Yasevich { 699243a2e63SVlad Yasevich return -EOPNOTSUPP; 700243a2e63SVlad Yasevich } 701243a2e63SVlad Yasevich 702243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 703243a2e63SVlad Yasevich { 704243a2e63SVlad Yasevich } 705243a2e63SVlad Yasevich 7062b292fb4SToshiaki Makita static inline bool br_vlan_find(struct net_bridge *br, u16 vid) 7072b292fb4SToshiaki Makita { 7082b292fb4SToshiaki Makita return false; 7092b292fb4SToshiaki Makita } 7102b292fb4SToshiaki Makita 711204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 712204177f3SToshiaki Makita { 713204177f3SToshiaki Makita } 714204177f3SToshiaki Makita 7155be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 7168580e211SToshiaki Makita { 7175be5a2dfSVlad Yasevich return 0; 7188580e211SToshiaki Makita } 7198580e211SToshiaki Makita 720552406c4SVlad Yasevich static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) 721243a2e63SVlad Yasevich { 722243a2e63SVlad Yasevich return -EOPNOTSUPP; 723243a2e63SVlad Yasevich } 724243a2e63SVlad Yasevich 725243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 726243a2e63SVlad Yasevich { 727243a2e63SVlad Yasevich return -EOPNOTSUPP; 728243a2e63SVlad Yasevich } 729243a2e63SVlad Yasevich 730243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 731243a2e63SVlad Yasevich { 732243a2e63SVlad Yasevich } 733243a2e63SVlad Yasevich 734a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 735a37b85c9SVlad Yasevich const struct net_bridge *br) 736a37b85c9SVlad Yasevich { 737a37b85c9SVlad Yasevich return NULL; 738a37b85c9SVlad Yasevich } 739a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 740a37b85c9SVlad Yasevich const struct net_bridge_port *p) 741a37b85c9SVlad Yasevich { 742a37b85c9SVlad Yasevich return NULL; 743a37b85c9SVlad Yasevich } 744a37b85c9SVlad Yasevich 745bc9a25d2SVlad Yasevich static inline bool nbp_vlan_find(struct net_bridge_port *port, u16 vid) 746bc9a25d2SVlad Yasevich { 747bc9a25d2SVlad Yasevich return false; 748bc9a25d2SVlad Yasevich } 749bc9a25d2SVlad Yasevich 7505be5a2dfSVlad Yasevich static inline int nbp_vlan_init(struct net_bridge_port *port) 7515be5a2dfSVlad Yasevich { 7525be5a2dfSVlad Yasevich return 0; 7535be5a2dfSVlad Yasevich } 7545be5a2dfSVlad Yasevich 75578851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 756a37b85c9SVlad Yasevich { 757a37b85c9SVlad Yasevich return 0; 758a37b85c9SVlad Yasevich } 75978851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 76078851988SVlad Yasevich { 7613df6bf45SVlad Yasevich return 0; 76278851988SVlad Yasevich } 7632796d0c6SVlad Yasevich 764d4f0e095SAlexei Starovoitov static inline int br_vlan_enabled(struct net_bridge *br) 7652796d0c6SVlad Yasevich { 7662796d0c6SVlad Yasevich return 0; 7672796d0c6SVlad Yasevich } 768243a2e63SVlad Yasevich #endif 769243a2e63SVlad Yasevich 7701da177e4SLinus Torvalds /* br_netfilter.c */ 77134666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 77234666d46SPablo Neira Ayuso int br_nf_core_init(void); 77334666d46SPablo Neira Ayuso void br_nf_core_fini(void); 774348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 775c0909713SStephen Hemminger #else 77634666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 77734666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 7784adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 779c0909713SStephen Hemminger #endif 7801da177e4SLinus Torvalds 7811da177e4SLinus Torvalds /* br_stp.c */ 782348662a1SJoe Perches void br_log_state(const struct net_bridge_port *p); 783775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 784348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 785348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 786348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 7871da177e4SLinus Torvalds 788348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 789348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 790348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 791348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 79214f98f25Sstephen hemminger 79314f98f25Sstephen hemminger 7941da177e4SLinus Torvalds /* br_stp_if.c */ 795348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 796348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 797348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 798348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 799348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 800348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 801348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 802348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 803348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 804348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 805348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 8061da177e4SLinus Torvalds 8071da177e4SLinus Torvalds /* br_stp_bpdu.c */ 8087c85fbf0SPatrick McHardy struct stp_proto; 809348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 8107c85fbf0SPatrick McHardy struct net_device *dev); 8111da177e4SLinus Torvalds 8121da177e4SLinus Torvalds /* br_stp_timer.c */ 813348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 814348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 815348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 8161da177e4SLinus Torvalds 8171da177e4SLinus Torvalds /* br.c */ 818e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 819da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 820da678292SMichał Mirosław #endif 8211da177e4SLinus Torvalds 82211dc1f36SStephen Hemminger /* br_netlink.c */ 823149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 824348662a1SJoe Perches int br_netlink_init(void); 825348662a1SJoe Perches void br_netlink_fini(void); 826348662a1SJoe Perches void br_ifinfo_notify(int event, struct net_bridge_port *port); 827348662a1SJoe Perches int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg); 828348662a1SJoe Perches int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg); 829348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 830348662a1SJoe Perches u32 filter_mask); 83111dc1f36SStephen Hemminger 8321da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 8331da177e4SLinus Torvalds /* br_sysfs_if.c */ 83452cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 835348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 836348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 8371da177e4SLinus Torvalds 8381da177e4SLinus Torvalds /* br_sysfs_br.c */ 839348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 840348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 8411da177e4SLinus Torvalds 8421da177e4SLinus Torvalds #else 8431da177e4SLinus Torvalds 8440cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 8450cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 8460cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 8470cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 8481da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 8491da177e4SLinus Torvalds 8501da177e4SLinus Torvalds #endif 851