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; 1011da177e4SLinus Torvalds unsigned char is_local; 1021da177e4SLinus Torvalds unsigned char is_static; 103a5642ab4SToshiaki Makita unsigned char added_by_user; 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 175eb1d1641SHerbert Xu 176eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 17790010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 178cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 17990010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 180cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 181eb1d1641SHerbert Xu unsigned char multicast_router; 182eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 183eb1d1641SHerbert Xu struct hlist_head mglist; 184eb1d1641SHerbert Xu struct hlist_node rlist; 185eb1d1641SHerbert Xu #endif 186e0f43752SSimon Arlott 187e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 188e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 189e0f43752SSimon Arlott #endif 19091d2c34aSHerbert Xu 19191d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 19291d2c34aSHerbert Xu struct netpoll *np; 19391d2c34aSHerbert Xu #endif 194243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 195243a2e63SVlad Yasevich struct net_port_vlans __rcu *vlan_info; 196243a2e63SVlad Yasevich #endif 1971da177e4SLinus Torvalds }; 1981da177e4SLinus Torvalds 199e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 200f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 201e028e4b8SVlad Yasevich 202f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 203f350a0a8SJiri Pirko 204b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 205b5ed54e9Sstephen hemminger { 206716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 207b5ed54e9Sstephen hemminger } 208b5ed54e9Sstephen hemminger 2091fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 210b5ed54e9Sstephen hemminger { 211ec1e5610SEric Dumazet return br_port_exists(dev) ? 212ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 213b5ed54e9Sstephen hemminger } 214b5ed54e9Sstephen hemminger 2151da177e4SLinus Torvalds struct net_bridge 2161da177e4SLinus Torvalds { 2171da177e4SLinus Torvalds spinlock_t lock; 2181da177e4SLinus Torvalds struct list_head port_list; 2191da177e4SLinus Torvalds struct net_device *dev; 22014bb4789Sstephen hemminger 2218f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 2221da177e4SLinus Torvalds spinlock_t hash_lock; 2231da177e4SLinus Torvalds struct hlist_head hash[BR_HASH_SIZE]; 2244adf0af6SSimon Wunderlich #ifdef CONFIG_BRIDGE_NETFILTER 2254adf0af6SSimon Wunderlich struct rtable fake_rtable; 2264df53d8bSPatrick McHardy bool nf_call_iptables; 2274df53d8bSPatrick McHardy bool nf_call_ip6tables; 2284df53d8bSPatrick McHardy bool nf_call_arptables; 2294adf0af6SSimon Wunderlich #endif 230515853ccSstephen hemminger u16 group_fwd_mask; 231f2808d22SToshiaki Makita u16 group_fwd_mask_required; 232515853ccSstephen hemminger 2331da177e4SLinus Torvalds /* STP */ 2341da177e4SLinus Torvalds bridge_id designated_root; 2351da177e4SLinus Torvalds bridge_id bridge_id; 2361da177e4SLinus Torvalds u32 root_path_cost; 2371da177e4SLinus Torvalds unsigned long max_age; 2381da177e4SLinus Torvalds unsigned long hello_time; 2391da177e4SLinus Torvalds unsigned long forward_delay; 2401da177e4SLinus Torvalds unsigned long bridge_max_age; 2411da177e4SLinus Torvalds unsigned long ageing_time; 2421da177e4SLinus Torvalds unsigned long bridge_hello_time; 2431da177e4SLinus Torvalds unsigned long bridge_forward_delay; 2441da177e4SLinus Torvalds 245fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 246204177f3SToshiaki Makita bool group_addr_set; 2471da177e4SLinus Torvalds u16 root_port; 2489cde0708SStephen Hemminger 2499cde0708SStephen Hemminger enum { 2509cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 2519cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 2529cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 2539cde0708SStephen Hemminger } stp_enabled; 2549cde0708SStephen Hemminger 2551da177e4SLinus Torvalds unsigned char topology_change; 2561da177e4SLinus Torvalds unsigned char topology_change_detected; 2571da177e4SLinus Torvalds 258eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 259eb1d1641SHerbert Xu unsigned char multicast_router; 260eb1d1641SHerbert Xu 261eb1d1641SHerbert Xu u8 multicast_disabled:1; 262c5c23260SHerbert Xu u8 multicast_querier:1; 2631c8ad5bfSCong Wang u8 multicast_query_use_ifaddr:1; 264eb1d1641SHerbert Xu 265eb1d1641SHerbert Xu u32 hash_elasticity; 266eb1d1641SHerbert Xu u32 hash_max; 267eb1d1641SHerbert Xu 268eb1d1641SHerbert Xu u32 multicast_last_member_count; 269eb1d1641SHerbert Xu u32 multicast_startup_query_count; 270eb1d1641SHerbert Xu 271eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 272eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 273eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 274eb1d1641SHerbert Xu unsigned long multicast_query_interval; 275eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 276eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 277eb1d1641SHerbert Xu 278eb1d1641SHerbert Xu spinlock_t multicast_lock; 279e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 280eb1d1641SHerbert Xu struct hlist_head router_list; 281eb1d1641SHerbert Xu 282eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 28390010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 28490010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 285dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 286cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 28790010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 28890010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 289dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 290cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 291eb1d1641SHerbert Xu #endif 292eb1d1641SHerbert Xu 2931da177e4SLinus Torvalds struct timer_list hello_timer; 2941da177e4SLinus Torvalds struct timer_list tcn_timer; 2951da177e4SLinus Torvalds struct timer_list topology_change_timer; 2961da177e4SLinus Torvalds struct timer_list gc_timer; 29743b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 298e028e4b8SVlad Yasevich u32 auto_cnt; 299243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 300243a2e63SVlad Yasevich u8 vlan_enabled; 3018580e211SToshiaki Makita __be16 vlan_proto; 302243a2e63SVlad Yasevich struct net_port_vlans __rcu *vlan_info; 303243a2e63SVlad Yasevich #endif 3041da177e4SLinus Torvalds }; 3051da177e4SLinus Torvalds 30668b7c895SHerbert Xu struct br_input_skb_cb { 30768b7c895SHerbert Xu struct net_device *brdev; 30832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 309eb1d1641SHerbert Xu int igmp; 310eb1d1641SHerbert Xu int mrouters_only; 31132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 31220adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 31320adfa1aSVlad Yasevich bool vlan_filtered; 31420adfa1aSVlad Yasevich #endif 31568b7c895SHerbert Xu }; 31668b7c895SHerbert Xu 31768b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 31868b7c895SHerbert Xu 31932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 32032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 32132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 32232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 32332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 32432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 32528a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 32628a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 32728a16c97Sstephen hemminger 32828a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 32928a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 33028a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 33128a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 33228a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 33328a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 33428a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 33528a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 33628a16c97Sstephen hemminger 33728a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 33828a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 33928a16c97Sstephen hemminger 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 360a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 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 368a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 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); 382424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 383424bb9c9SToshiaki Makita const struct net_bridge_port *p, 384424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 385348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 386348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 387348662a1SJoe Perches void br_fdb_cleanup(unsigned long arg); 388348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 3891a620698SStephen Hemminger const struct net_bridge_port *p, int do_all); 390348662a1SJoe Perches struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, 391348662a1SJoe Perches const unsigned char *addr, __u16 vid); 392348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 393348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 394348662a1SJoe Perches unsigned long off); 395348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 396348662a1SJoe Perches const unsigned char *addr, u16 vid); 397348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 398a5642ab4SToshiaki Makita const unsigned char *addr, u16 vid, bool added_by_user); 39977162022SJohn Fastabend 400348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 401348662a1SJoe Perches struct net_device *dev, const unsigned char *addr); 402348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 403348662a1SJoe Perches const unsigned char *addr, u16 nlh_flags); 404348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 4055d5eacb3SJamal Hadi Salim struct net_device *dev, struct net_device *fdev, int idx); 4068db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 4078db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 4081da177e4SLinus Torvalds 4091da177e4SLinus Torvalds /* br_forward.c */ 410348662a1SJoe Perches void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb); 411348662a1SJoe Perches int br_dev_queue_push_xmit(struct sk_buff *skb); 412348662a1SJoe Perches void br_forward(const struct net_bridge_port *to, 4137f7708f0SMichael Braun struct sk_buff *skb, struct sk_buff *skb0); 414348662a1SJoe Perches int br_forward_finish(struct sk_buff *skb); 415348662a1SJoe Perches void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast); 416348662a1SJoe Perches void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, 417867a5943SVlad Yasevich struct sk_buff *skb2, bool unicast); 4181da177e4SLinus Torvalds 4191da177e4SLinus Torvalds /* br_if.c */ 420348662a1SJoe Perches void br_port_carrier_check(struct net_bridge_port *p); 421348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 422348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 423348662a1SJoe Perches int br_add_if(struct net_bridge *br, struct net_device *dev); 424348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 425348662a1SJoe Perches int br_min_mtu(const struct net_bridge *br); 426348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 427c8f44affSMichał Mirosław netdev_features_t features); 428e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 4292796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 4301da177e4SLinus Torvalds 4311da177e4SLinus Torvalds /* br_input.c */ 432348662a1SJoe Perches int br_handle_frame_finish(struct sk_buff *skb); 433348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 4341da177e4SLinus Torvalds 435859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 436859828c0SJiri Pirko { 437859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 438859828c0SJiri Pirko } 439859828c0SJiri Pirko 440859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 441859828c0SJiri Pirko { 442859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 443859828c0SJiri Pirko } 444859828c0SJiri Pirko 4451da177e4SLinus Torvalds /* br_ioctl.c */ 446348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 447348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 448348662a1SJoe Perches void __user *arg); 4491da177e4SLinus Torvalds 450eb1d1641SHerbert Xu /* br_multicast.c */ 451eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 4522ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 453348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 454fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 455348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 456eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 457348662a1SJoe Perches void br_multicast_add_port(struct net_bridge_port *port); 458348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 459348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 460348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 461348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 462348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 463348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 464348662a1SJoe Perches void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 4655cb5e947SHerbert Xu struct sk_buff *skb); 466348662a1SJoe Perches void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 4675cb5e947SHerbert Xu struct sk_buff *skb, struct sk_buff *skb2); 468348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 469348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 470348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 471348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 472348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 473348662a1SJoe Perches struct net_bridge_mdb_entry * 474348662a1SJoe Perches br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); 475348662a1SJoe Perches struct net_bridge_mdb_entry * 476348662a1SJoe Perches br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, 477348662a1SJoe Perches struct br_ip *group); 478348662a1SJoe Perches void br_multicast_free_pg(struct rcu_head *head); 479348662a1SJoe Perches struct net_bridge_port_group * 480348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 481762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 482ccb1c31aSAmerigo Wang unsigned char state); 483348662a1SJoe Perches void br_mdb_init(void); 484348662a1SJoe Perches void br_mdb_uninit(void); 485348662a1SJoe Perches void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 48637a393bcSCong Wang struct br_ip *group, int type); 48785b35269SSridhar Samudrala 488cfd56754SCong Wang #define mlock_dereference(X, br) \ 489cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 490cfd56754SCong Wang 49185b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 49285b35269SSridhar Samudrala { 49385b35269SSridhar Samudrala return br->multicast_router == 2 || 49485b35269SSridhar Samudrala (br->multicast_router == 1 && 49585b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 49685b35269SSridhar Samudrala } 497b00589afSLinus Lüssing 498cc0fdd80SLinus Lüssing static inline bool 499cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 50090010b36SLinus Lüssing struct bridge_mcast_other_query *querier) 501b00589afSLinus Lüssing { 502cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 503cc0fdd80SLinus Lüssing (br->multicast_querier || timer_pending(&querier->timer)); 504cc0fdd80SLinus Lüssing } 505cc0fdd80SLinus Lüssing 506cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 507cc0fdd80SLinus Lüssing struct ethhdr *eth) 508cc0fdd80SLinus Lüssing { 509cc0fdd80SLinus Lüssing switch (eth->h_proto) { 510cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 51190010b36SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip4_other_query); 512cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 513cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 51490010b36SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip6_other_query); 515cc0fdd80SLinus Lüssing #endif 516cc0fdd80SLinus Lüssing default: 517cc0fdd80SLinus Lüssing return false; 518cc0fdd80SLinus Lüssing } 519b00589afSLinus Lüssing } 520eb1d1641SHerbert Xu #else 521eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 522eb1d1641SHerbert Xu struct net_bridge_port *port, 52306499098SVlad Yasevich struct sk_buff *skb, 52406499098SVlad Yasevich u16 vid) 525eb1d1641SHerbert Xu { 526eb1d1641SHerbert Xu return 0; 527eb1d1641SHerbert Xu } 528eb1d1641SHerbert Xu 529eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 530fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 531eb1d1641SHerbert Xu { 532eb1d1641SHerbert Xu return NULL; 533eb1d1641SHerbert Xu } 534eb1d1641SHerbert Xu 535eb1d1641SHerbert Xu static inline void br_multicast_add_port(struct net_bridge_port *port) 536eb1d1641SHerbert Xu { 537eb1d1641SHerbert Xu } 538eb1d1641SHerbert Xu 539eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 540eb1d1641SHerbert Xu { 541eb1d1641SHerbert Xu } 542eb1d1641SHerbert Xu 543eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 544eb1d1641SHerbert Xu { 545eb1d1641SHerbert Xu } 546eb1d1641SHerbert Xu 547eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 548eb1d1641SHerbert Xu { 549eb1d1641SHerbert Xu } 550eb1d1641SHerbert Xu 551eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 552eb1d1641SHerbert Xu { 553eb1d1641SHerbert Xu } 554eb1d1641SHerbert Xu 555eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 556eb1d1641SHerbert Xu { 557eb1d1641SHerbert Xu } 558eb1d1641SHerbert Xu 559eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 560eb1d1641SHerbert Xu { 561eb1d1641SHerbert Xu } 5625cb5e947SHerbert Xu 5635cb5e947SHerbert Xu static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 5645cb5e947SHerbert Xu struct sk_buff *skb) 5655cb5e947SHerbert Xu { 5665cb5e947SHerbert Xu } 5675cb5e947SHerbert Xu 5685cb5e947SHerbert Xu static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 5695cb5e947SHerbert Xu struct sk_buff *skb, 5705cb5e947SHerbert Xu struct sk_buff *skb2) 5715cb5e947SHerbert Xu { 5725cb5e947SHerbert Xu } 573eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 574eb1d1641SHerbert Xu { 57585b35269SSridhar Samudrala return 0; 576eb1d1641SHerbert Xu } 577cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 578cc0fdd80SLinus Lüssing struct ethhdr *eth) 579b00589afSLinus Lüssing { 580b00589afSLinus Lüssing return false; 581b00589afSLinus Lüssing } 582fdb184d1SRami Rosen static inline void br_mdb_init(void) 583fdb184d1SRami Rosen { 584fdb184d1SRami Rosen } 585fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 586fdb184d1SRami Rosen { 587fdb184d1SRami Rosen } 58885b35269SSridhar Samudrala #endif 589eb1d1641SHerbert Xu 590243a2e63SVlad Yasevich /* br_vlan.c */ 591243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 592348662a1SJoe Perches bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v, 59378851988SVlad Yasevich struct sk_buff *skb, u16 *vid); 594348662a1SJoe Perches bool br_allowed_egress(struct net_bridge *br, const struct net_port_vlans *v, 59585f46c6bSVlad Yasevich const struct sk_buff *skb); 596e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 597348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 59878851988SVlad Yasevich const struct net_port_vlans *v, 59978851988SVlad Yasevich struct sk_buff *skb); 600348662a1SJoe Perches int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); 601348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 602348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 6032b292fb4SToshiaki Makita bool br_vlan_find(struct net_bridge *br, u16 vid); 604204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 605348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 606204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 6078580e211SToshiaki Makita void br_vlan_init(struct net_bridge *br); 608348662a1SJoe Perches int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); 609348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 610348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 611348662a1SJoe Perches bool nbp_vlan_find(struct net_bridge_port *port, u16 vid); 612a37b85c9SVlad Yasevich 613a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 614a37b85c9SVlad Yasevich const struct net_bridge *br) 615a37b85c9SVlad Yasevich { 6161690be63SVlad Yasevich return rcu_dereference_rtnl(br->vlan_info); 617a37b85c9SVlad Yasevich } 618a37b85c9SVlad Yasevich 619a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 620a37b85c9SVlad Yasevich const struct net_bridge_port *p) 621a37b85c9SVlad Yasevich { 6221690be63SVlad Yasevich return rcu_dereference_rtnl(p->vlan_info); 623a37b85c9SVlad Yasevich } 624a37b85c9SVlad Yasevich 625a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 626a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 627a37b85c9SVlad Yasevich */ 628a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 629a37b85c9SVlad Yasevich { 630a37b85c9SVlad Yasevich int err = 0; 631a37b85c9SVlad Yasevich 632a37b85c9SVlad Yasevich if (vlan_tx_tag_present(skb)) 633a37b85c9SVlad Yasevich *vid = vlan_tx_tag_get(skb) & VLAN_VID_MASK; 634a37b85c9SVlad Yasevich else { 635a37b85c9SVlad Yasevich *vid = 0; 636a37b85c9SVlad Yasevich err = -EINVAL; 637a37b85c9SVlad Yasevich } 638a37b85c9SVlad Yasevich 639a37b85c9SVlad Yasevich return err; 640a37b85c9SVlad Yasevich } 64178851988SVlad Yasevich 64278851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 64378851988SVlad Yasevich { 64478851988SVlad Yasevich /* Return just the VID if it is set, or VLAN_N_VID (invalid vid) if 64578851988SVlad Yasevich * vid wasn't set 64678851988SVlad Yasevich */ 64778851988SVlad Yasevich smp_rmb(); 648d1c6c708SToshiaki Makita return v->pvid ?: VLAN_N_VID; 64978851988SVlad Yasevich } 65078851988SVlad Yasevich 6512796d0c6SVlad Yasevich static inline int br_vlan_enabled(struct net_bridge *br) 6522796d0c6SVlad Yasevich { 6532796d0c6SVlad Yasevich return br->vlan_enabled; 6542796d0c6SVlad Yasevich } 655243a2e63SVlad Yasevich #else 656a37b85c9SVlad Yasevich static inline bool br_allowed_ingress(struct net_bridge *br, 657a37b85c9SVlad Yasevich struct net_port_vlans *v, 65878851988SVlad Yasevich struct sk_buff *skb, 65978851988SVlad Yasevich u16 *vid) 660a37b85c9SVlad Yasevich { 661a37b85c9SVlad Yasevich return true; 662a37b85c9SVlad Yasevich } 663a37b85c9SVlad Yasevich 66485f46c6bSVlad Yasevich static inline bool br_allowed_egress(struct net_bridge *br, 66585f46c6bSVlad Yasevich const struct net_port_vlans *v, 66685f46c6bSVlad Yasevich const struct sk_buff *skb) 66785f46c6bSVlad Yasevich { 66885f46c6bSVlad Yasevich return true; 66985f46c6bSVlad Yasevich } 67085f46c6bSVlad Yasevich 671e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 672e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 673e0d7968aSToshiaki Makita { 674e0d7968aSToshiaki Makita return true; 675e0d7968aSToshiaki Makita } 676e0d7968aSToshiaki Makita 67778851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 67878851988SVlad Yasevich const struct net_port_vlans *v, 67978851988SVlad Yasevich struct sk_buff *skb) 68078851988SVlad Yasevich { 68178851988SVlad Yasevich return skb; 68278851988SVlad Yasevich } 68378851988SVlad Yasevich 684552406c4SVlad Yasevich static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) 685243a2e63SVlad Yasevich { 686243a2e63SVlad Yasevich return -EOPNOTSUPP; 687243a2e63SVlad Yasevich } 688243a2e63SVlad Yasevich 689243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 690243a2e63SVlad Yasevich { 691243a2e63SVlad Yasevich return -EOPNOTSUPP; 692243a2e63SVlad Yasevich } 693243a2e63SVlad Yasevich 694243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 695243a2e63SVlad Yasevich { 696243a2e63SVlad Yasevich } 697243a2e63SVlad Yasevich 6982b292fb4SToshiaki Makita static inline bool br_vlan_find(struct net_bridge *br, u16 vid) 6992b292fb4SToshiaki Makita { 7002b292fb4SToshiaki Makita return false; 7012b292fb4SToshiaki Makita } 7022b292fb4SToshiaki Makita 703204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 704204177f3SToshiaki Makita { 705204177f3SToshiaki Makita } 706204177f3SToshiaki Makita 7078580e211SToshiaki Makita static inline void br_vlan_init(struct net_bridge *br) 7088580e211SToshiaki Makita { 7098580e211SToshiaki Makita } 7108580e211SToshiaki Makita 711552406c4SVlad Yasevich static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) 712243a2e63SVlad Yasevich { 713243a2e63SVlad Yasevich return -EOPNOTSUPP; 714243a2e63SVlad Yasevich } 715243a2e63SVlad Yasevich 716243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 717243a2e63SVlad Yasevich { 718243a2e63SVlad Yasevich return -EOPNOTSUPP; 719243a2e63SVlad Yasevich } 720243a2e63SVlad Yasevich 721243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 722243a2e63SVlad Yasevich { 723243a2e63SVlad Yasevich } 724243a2e63SVlad Yasevich 725a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 726a37b85c9SVlad Yasevich const struct net_bridge *br) 727a37b85c9SVlad Yasevich { 728a37b85c9SVlad Yasevich return NULL; 729a37b85c9SVlad Yasevich } 730a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 731a37b85c9SVlad Yasevich const struct net_bridge_port *p) 732a37b85c9SVlad Yasevich { 733a37b85c9SVlad Yasevich return NULL; 734a37b85c9SVlad Yasevich } 735a37b85c9SVlad Yasevich 736bc9a25d2SVlad Yasevich static inline bool nbp_vlan_find(struct net_bridge_port *port, u16 vid) 737bc9a25d2SVlad Yasevich { 738bc9a25d2SVlad Yasevich return false; 739bc9a25d2SVlad Yasevich } 740bc9a25d2SVlad Yasevich 74178851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 742a37b85c9SVlad Yasevich { 743a37b85c9SVlad Yasevich return 0; 744a37b85c9SVlad Yasevich } 74578851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 74678851988SVlad Yasevich { 74778851988SVlad Yasevich return VLAN_N_VID; /* Returns invalid vid */ 74878851988SVlad Yasevich } 7492796d0c6SVlad Yasevich 750d4f0e095SAlexei Starovoitov static inline int br_vlan_enabled(struct net_bridge *br) 7512796d0c6SVlad Yasevich { 7522796d0c6SVlad Yasevich return 0; 7532796d0c6SVlad Yasevich } 754243a2e63SVlad Yasevich #endif 755243a2e63SVlad Yasevich 7561da177e4SLinus Torvalds /* br_netfilter.c */ 757c0909713SStephen Hemminger #ifdef CONFIG_BRIDGE_NETFILTER 758348662a1SJoe Perches int br_netfilter_init(void); 759348662a1SJoe Perches void br_netfilter_fini(void); 760348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 761c0909713SStephen Hemminger #else 762c0909713SStephen Hemminger #define br_netfilter_init() (0) 763c0909713SStephen Hemminger #define br_netfilter_fini() do { } while (0) 7644adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 765c0909713SStephen Hemminger #endif 7661da177e4SLinus Torvalds 7671da177e4SLinus Torvalds /* br_stp.c */ 768348662a1SJoe Perches void br_log_state(const struct net_bridge_port *p); 769348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 770348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 771348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 7721da177e4SLinus Torvalds 773348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 774348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 775348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 776348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 77714f98f25Sstephen hemminger 77814f98f25Sstephen hemminger 7791da177e4SLinus Torvalds /* br_stp_if.c */ 780348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 781348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 782348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 783348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 784348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 785348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 786348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 787348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 788348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 789348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 790348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 7911da177e4SLinus Torvalds 7921da177e4SLinus Torvalds /* br_stp_bpdu.c */ 7937c85fbf0SPatrick McHardy struct stp_proto; 794348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 7957c85fbf0SPatrick McHardy struct net_device *dev); 7961da177e4SLinus Torvalds 7971da177e4SLinus Torvalds /* br_stp_timer.c */ 798348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 799348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 800348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 8011da177e4SLinus Torvalds 8021da177e4SLinus Torvalds /* br.c */ 803e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 804da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 805da678292SMichał Mirosław #endif 8061da177e4SLinus Torvalds 80711dc1f36SStephen Hemminger /* br_netlink.c */ 808149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 809348662a1SJoe Perches int br_netlink_init(void); 810348662a1SJoe Perches void br_netlink_fini(void); 811348662a1SJoe Perches void br_ifinfo_notify(int event, struct net_bridge_port *port); 812348662a1SJoe Perches int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg); 813348662a1SJoe Perches int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg); 814348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 815348662a1SJoe Perches u32 filter_mask); 81611dc1f36SStephen Hemminger 8171da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 8181da177e4SLinus Torvalds /* br_sysfs_if.c */ 81952cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 820348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 821348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 8221da177e4SLinus Torvalds 8231da177e4SLinus Torvalds /* br_sysfs_br.c */ 824348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 825348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 8261da177e4SLinus Torvalds 8271da177e4SLinus Torvalds #else 8281da177e4SLinus Torvalds 8290cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 8300cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 8310cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 8320cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 8331da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 8341da177e4SLinus Torvalds 8351da177e4SLinus Torvalds #endif 836