11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * Linux ethernet bridge 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Authors: 51da177e4SLinus Torvalds * Lennert Buytenhek <buytenh@gnu.org> 61da177e4SLinus Torvalds * 71da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or 81da177e4SLinus Torvalds * modify it under the terms of the GNU General Public License 91da177e4SLinus Torvalds * as published by the Free Software Foundation; either version 101da177e4SLinus Torvalds * 2 of the License, or (at your option) any later version. 111da177e4SLinus Torvalds */ 121da177e4SLinus Torvalds 131da177e4SLinus Torvalds #ifndef _BR_PRIVATE_H 141da177e4SLinus Torvalds #define _BR_PRIVATE_H 151da177e4SLinus Torvalds 161da177e4SLinus Torvalds #include <linux/netdevice.h> 171da177e4SLinus Torvalds #include <linux/if_bridge.h> 1891d2c34aSHerbert Xu #include <linux/netpoll.h> 19406818ffSEric Dumazet #include <linux/u64_stats_sync.h> 204adf0af6SSimon Wunderlich #include <net/route.h> 21243a2e63SVlad Yasevich #include <linux/if_vlan.h> 221da177e4SLinus Torvalds 231da177e4SLinus Torvalds #define BR_HASH_BITS 8 241da177e4SLinus Torvalds #define BR_HASH_SIZE (1 << BR_HASH_BITS) 251da177e4SLinus Torvalds 261da177e4SLinus Torvalds #define BR_HOLD_TIME (1*HZ) 271da177e4SLinus Torvalds 281da177e4SLinus Torvalds #define BR_PORT_BITS 10 291da177e4SLinus Torvalds #define BR_MAX_PORTS (1<<BR_PORT_BITS) 30243a2e63SVlad Yasevich #define BR_VLAN_BITMAP_LEN BITS_TO_LONGS(VLAN_N_VID) 311da177e4SLinus Torvalds 329cde0708SStephen Hemminger #define BR_VERSION "2.3" 339cde0708SStephen Hemminger 34515853ccSstephen hemminger /* Control of forwarding link local multicast */ 35515853ccSstephen hemminger #define BR_GROUPFWD_DEFAULT 0 36515853ccSstephen hemminger /* Don't allow forwarding control protocols like STP and LLDP */ 37515853ccSstephen hemminger #define BR_GROUPFWD_RESTRICTED 0x4007u 38515853ccSstephen hemminger 399cde0708SStephen Hemminger /* Path to usermode spanning tree program */ 409cde0708SStephen Hemminger #define BR_STP_PROG "/sbin/bridge-stp" 418cbb512eSStephen Hemminger 421da177e4SLinus Torvalds typedef struct bridge_id bridge_id; 431da177e4SLinus Torvalds typedef struct mac_addr mac_addr; 441da177e4SLinus Torvalds typedef __u16 port_id; 451da177e4SLinus Torvalds 461da177e4SLinus Torvalds struct bridge_id 471da177e4SLinus Torvalds { 481da177e4SLinus Torvalds unsigned char prio[2]; 49e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 501da177e4SLinus Torvalds }; 511da177e4SLinus Torvalds 521da177e4SLinus Torvalds struct mac_addr 531da177e4SLinus Torvalds { 54e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 551da177e4SLinus Torvalds }; 561da177e4SLinus Torvalds 578ef2a9a5SYOSHIFUJI Hideaki struct br_ip 588ef2a9a5SYOSHIFUJI Hideaki { 598ef2a9a5SYOSHIFUJI Hideaki union { 608ef2a9a5SYOSHIFUJI Hideaki __be32 ip4; 61dfd56b8bSEric Dumazet #if IS_ENABLED(CONFIG_IPV6) 6208b202b6SYOSHIFUJI Hideaki struct in6_addr ip6; 6308b202b6SYOSHIFUJI Hideaki #endif 648ef2a9a5SYOSHIFUJI Hideaki } u; 658ef2a9a5SYOSHIFUJI Hideaki __be16 proto; 66b0e9a30dSVlad Yasevich __u16 vid; 678ef2a9a5SYOSHIFUJI Hideaki }; 688ef2a9a5SYOSHIFUJI Hideaki 69cc0fdd80SLinus Lüssing #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 70cc0fdd80SLinus Lüssing /* our own querier */ 7190010b36SLinus Lüssing struct bridge_mcast_own_query { 72cc0fdd80SLinus Lüssing struct timer_list timer; 73cc0fdd80SLinus Lüssing u32 startup_sent; 74cc0fdd80SLinus Lüssing }; 75cc0fdd80SLinus Lüssing 76cc0fdd80SLinus Lüssing /* other querier */ 7790010b36SLinus Lüssing struct bridge_mcast_other_query { 78cc0fdd80SLinus Lüssing struct timer_list timer; 79cc0fdd80SLinus Lüssing unsigned long delay_time; 80cc0fdd80SLinus Lüssing }; 81dc4eb53aSLinus Lüssing 82dc4eb53aSLinus Lüssing /* selected querier */ 83dc4eb53aSLinus Lüssing struct bridge_mcast_querier { 84dc4eb53aSLinus Lüssing struct br_ip addr; 85dc4eb53aSLinus Lüssing }; 86cc0fdd80SLinus Lüssing #endif 87cc0fdd80SLinus Lüssing 88243a2e63SVlad Yasevich struct net_port_vlans { 89243a2e63SVlad Yasevich u16 port_idx; 9078851988SVlad Yasevich u16 pvid; 91243a2e63SVlad Yasevich union { 92243a2e63SVlad Yasevich struct net_bridge_port *port; 93243a2e63SVlad Yasevich struct net_bridge *br; 94243a2e63SVlad Yasevich } parent; 95243a2e63SVlad Yasevich struct rcu_head rcu; 96243a2e63SVlad Yasevich unsigned long vlan_bitmap[BR_VLAN_BITMAP_LEN]; 9735e03f3aSVlad Yasevich unsigned long untagged_bitmap[BR_VLAN_BITMAP_LEN]; 986cbdceebSVlad Yasevich u16 num_vlans; 99243a2e63SVlad Yasevich }; 100243a2e63SVlad Yasevich 1011da177e4SLinus Torvalds struct net_bridge_fdb_entry 1021da177e4SLinus Torvalds { 1031da177e4SLinus Torvalds struct hlist_node hlist; 1041da177e4SLinus Torvalds struct net_bridge_port *dst; 1051da177e4SLinus Torvalds 1061da177e4SLinus Torvalds struct rcu_head rcu; 1077cd8861aSstephen hemminger unsigned long updated; 1087cd8861aSstephen hemminger unsigned long used; 1091da177e4SLinus Torvalds mac_addr addr; 1101da177e4SLinus Torvalds unsigned char is_local; 1111da177e4SLinus Torvalds unsigned char is_static; 112a5642ab4SToshiaki Makita unsigned char added_by_user; 1132ba071ecSVlad Yasevich __u16 vlan_id; 1141da177e4SLinus Torvalds }; 1151da177e4SLinus Torvalds 116eb1d1641SHerbert Xu struct net_bridge_port_group { 117eb1d1641SHerbert Xu struct net_bridge_port *port; 118e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 119eb1d1641SHerbert Xu struct hlist_node mglist; 120eb1d1641SHerbert Xu struct rcu_head rcu; 121eb1d1641SHerbert Xu struct timer_list timer; 1228ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 123ccb1c31aSAmerigo Wang unsigned char state; 124eb1d1641SHerbert Xu }; 125eb1d1641SHerbert Xu 126eb1d1641SHerbert Xu struct net_bridge_mdb_entry 127eb1d1641SHerbert Xu { 128eb1d1641SHerbert Xu struct hlist_node hlist[2]; 129eb1d1641SHerbert Xu struct net_bridge *br; 130e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 131eb1d1641SHerbert Xu struct rcu_head rcu; 132eb1d1641SHerbert Xu struct timer_list timer; 1338ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 1348a870178SHerbert Xu bool mglist; 135eb1d1641SHerbert Xu }; 136eb1d1641SHerbert Xu 137eb1d1641SHerbert Xu struct net_bridge_mdb_htable 138eb1d1641SHerbert Xu { 139eb1d1641SHerbert Xu struct hlist_head *mhash; 140eb1d1641SHerbert Xu struct rcu_head rcu; 141eb1d1641SHerbert Xu struct net_bridge_mdb_htable *old; 142eb1d1641SHerbert Xu u32 size; 143eb1d1641SHerbert Xu u32 max; 144eb1d1641SHerbert Xu u32 secret; 145eb1d1641SHerbert Xu u32 ver; 146eb1d1641SHerbert Xu }; 147eb1d1641SHerbert Xu 1481da177e4SLinus Torvalds struct net_bridge_port 1491da177e4SLinus Torvalds { 1501da177e4SLinus Torvalds struct net_bridge *br; 1511da177e4SLinus Torvalds struct net_device *dev; 1521da177e4SLinus Torvalds struct list_head list; 1531da177e4SLinus Torvalds 1541da177e4SLinus Torvalds /* STP */ 1551da177e4SLinus Torvalds u8 priority; 1561da177e4SLinus Torvalds u8 state; 1571da177e4SLinus Torvalds u16 port_no; 1581da177e4SLinus Torvalds unsigned char topology_change_ack; 1591da177e4SLinus Torvalds unsigned char config_pending; 1601da177e4SLinus Torvalds port_id port_id; 1611da177e4SLinus Torvalds port_id designated_port; 1621da177e4SLinus Torvalds bridge_id designated_root; 1631da177e4SLinus Torvalds bridge_id designated_bridge; 1641da177e4SLinus Torvalds u32 path_cost; 1651da177e4SLinus Torvalds u32 designated_cost; 1660c03150eSstephen hemminger unsigned long designated_age; 1671da177e4SLinus Torvalds 1681da177e4SLinus Torvalds struct timer_list forward_delay_timer; 1691da177e4SLinus Torvalds struct timer_list hold_timer; 1701da177e4SLinus Torvalds struct timer_list message_age_timer; 1711da177e4SLinus Torvalds struct kobject kobj; 1721da177e4SLinus Torvalds struct rcu_head rcu; 1733982d3d2SFischer, Anna 1743982d3d2SFischer, Anna unsigned long flags; 1753982d3d2SFischer, Anna #define BR_HAIRPIN_MODE 0x00000001 176a2e01a65Sstephen hemminger #define BR_BPDU_GUARD 0x00000002 1771007dd1aSstephen hemminger #define BR_ROOT_BLOCK 0x00000004 178c2d3babfSDavid S. Miller #define BR_MULTICAST_FAST_LEAVE 0x00000008 1798f3359bdSstephen hemminger #define BR_ADMIN_COST 0x00000010 1809ba18891SVlad Yasevich #define BR_LEARNING 0x00000020 181867a5943SVlad Yasevich #define BR_FLOOD 0x00000040 182e028e4b8SVlad Yasevich #define BR_AUTO_MASK (BR_FLOOD | BR_LEARNING) 183f3a6ddf1SVlad Yasevich #define BR_PROMISC 0x00000080 184eb1d1641SHerbert Xu 185eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 18690010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 187cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 18890010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 189cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 190eb1d1641SHerbert Xu unsigned char multicast_router; 191eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 192eb1d1641SHerbert Xu struct hlist_head mglist; 193eb1d1641SHerbert Xu struct hlist_node rlist; 194eb1d1641SHerbert Xu #endif 195e0f43752SSimon Arlott 196e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 197e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 198e0f43752SSimon Arlott #endif 19991d2c34aSHerbert Xu 20091d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 20191d2c34aSHerbert Xu struct netpoll *np; 20291d2c34aSHerbert Xu #endif 203243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 204243a2e63SVlad Yasevich struct net_port_vlans __rcu *vlan_info; 205243a2e63SVlad Yasevich #endif 2061da177e4SLinus Torvalds }; 2071da177e4SLinus Torvalds 208e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 209f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 210e028e4b8SVlad Yasevich 211f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 212f350a0a8SJiri Pirko 213b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 214b5ed54e9Sstephen hemminger { 215716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 216b5ed54e9Sstephen hemminger } 217b5ed54e9Sstephen hemminger 2181fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 219b5ed54e9Sstephen hemminger { 220ec1e5610SEric Dumazet return br_port_exists(dev) ? 221ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 222b5ed54e9Sstephen hemminger } 223b5ed54e9Sstephen hemminger 2241da177e4SLinus Torvalds struct net_bridge 2251da177e4SLinus Torvalds { 2261da177e4SLinus Torvalds spinlock_t lock; 2271da177e4SLinus Torvalds struct list_head port_list; 2281da177e4SLinus Torvalds struct net_device *dev; 22914bb4789Sstephen hemminger 2308f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 2311da177e4SLinus Torvalds spinlock_t hash_lock; 2321da177e4SLinus Torvalds struct hlist_head hash[BR_HASH_SIZE]; 2334adf0af6SSimon Wunderlich #ifdef CONFIG_BRIDGE_NETFILTER 2344adf0af6SSimon Wunderlich struct rtable fake_rtable; 2354df53d8bSPatrick McHardy bool nf_call_iptables; 2364df53d8bSPatrick McHardy bool nf_call_ip6tables; 2374df53d8bSPatrick McHardy bool nf_call_arptables; 2384adf0af6SSimon Wunderlich #endif 239515853ccSstephen hemminger u16 group_fwd_mask; 240515853ccSstephen hemminger 2411da177e4SLinus Torvalds /* STP */ 2421da177e4SLinus Torvalds bridge_id designated_root; 2431da177e4SLinus Torvalds bridge_id bridge_id; 2441da177e4SLinus Torvalds u32 root_path_cost; 2451da177e4SLinus Torvalds unsigned long max_age; 2461da177e4SLinus Torvalds unsigned long hello_time; 2471da177e4SLinus Torvalds unsigned long forward_delay; 2481da177e4SLinus Torvalds unsigned long bridge_max_age; 2491da177e4SLinus Torvalds unsigned long ageing_time; 2501da177e4SLinus Torvalds unsigned long bridge_hello_time; 2511da177e4SLinus Torvalds unsigned long bridge_forward_delay; 2521da177e4SLinus Torvalds 253fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 2541da177e4SLinus Torvalds u16 root_port; 2559cde0708SStephen Hemminger 2569cde0708SStephen Hemminger enum { 2579cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 2589cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 2599cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 2609cde0708SStephen Hemminger } stp_enabled; 2619cde0708SStephen Hemminger 2621da177e4SLinus Torvalds unsigned char topology_change; 2631da177e4SLinus Torvalds unsigned char topology_change_detected; 2641da177e4SLinus Torvalds 265eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 266eb1d1641SHerbert Xu unsigned char multicast_router; 267eb1d1641SHerbert Xu 268eb1d1641SHerbert Xu u8 multicast_disabled:1; 269c5c23260SHerbert Xu u8 multicast_querier:1; 2701c8ad5bfSCong Wang u8 multicast_query_use_ifaddr:1; 271eb1d1641SHerbert Xu 272eb1d1641SHerbert Xu u32 hash_elasticity; 273eb1d1641SHerbert Xu u32 hash_max; 274eb1d1641SHerbert Xu 275eb1d1641SHerbert Xu u32 multicast_last_member_count; 276eb1d1641SHerbert Xu u32 multicast_startup_query_count; 277eb1d1641SHerbert Xu 278eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 279eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 280eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 281eb1d1641SHerbert Xu unsigned long multicast_query_interval; 282eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 283eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 284eb1d1641SHerbert Xu 285eb1d1641SHerbert Xu spinlock_t multicast_lock; 286e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 287eb1d1641SHerbert Xu struct hlist_head router_list; 288eb1d1641SHerbert Xu 289eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 29090010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 29190010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 292dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 293cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 29490010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 29590010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 296dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 297cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 298eb1d1641SHerbert Xu #endif 299eb1d1641SHerbert Xu 3001da177e4SLinus Torvalds struct timer_list hello_timer; 3011da177e4SLinus Torvalds struct timer_list tcn_timer; 3021da177e4SLinus Torvalds struct timer_list topology_change_timer; 3031da177e4SLinus Torvalds struct timer_list gc_timer; 30443b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 305e028e4b8SVlad Yasevich u32 auto_cnt; 306243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 307243a2e63SVlad Yasevich u8 vlan_enabled; 308243a2e63SVlad Yasevich struct net_port_vlans __rcu *vlan_info; 309243a2e63SVlad Yasevich #endif 3101da177e4SLinus Torvalds }; 3111da177e4SLinus Torvalds 31268b7c895SHerbert Xu struct br_input_skb_cb { 31368b7c895SHerbert Xu struct net_device *brdev; 31432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 315eb1d1641SHerbert Xu int igmp; 316eb1d1641SHerbert Xu int mrouters_only; 31732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 31868b7c895SHerbert Xu }; 31968b7c895SHerbert Xu 32068b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 32168b7c895SHerbert Xu 32232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 32332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 32432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 32532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 32632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 32732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 32828a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 32928a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 33028a16c97Sstephen hemminger 33128a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 33228a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 33328a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 33428a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 33528a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 33628a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 33728a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 33828a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 33928a16c97Sstephen hemminger 34028a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 34128a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 34228a16c97Sstephen hemminger 3431da177e4SLinus Torvalds /* called under bridge lock */ 3441da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 3451da177e4SLinus Torvalds { 3461da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 3471da177e4SLinus Torvalds } 3481da177e4SLinus Torvalds 3491da177e4SLinus Torvalds /* br_device.c */ 350348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 351348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 352348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 353cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 35491d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 35591d2c34aSHerbert Xu struct sk_buff *skb) 35691d2c34aSHerbert Xu { 35791d2c34aSHerbert Xu struct netpoll *np = p->np; 35891d2c34aSHerbert Xu 35991d2c34aSHerbert Xu if (np) 36091d2c34aSHerbert Xu netpoll_send_skb(np, skb); 36191d2c34aSHerbert Xu } 36291d2c34aSHerbert Xu 363a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 364348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 36591d2c34aSHerbert Xu #else 3669f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 36791d2c34aSHerbert Xu struct sk_buff *skb) 36891d2c34aSHerbert Xu { 36991d2c34aSHerbert Xu } 37091d2c34aSHerbert Xu 371a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 37291d2c34aSHerbert Xu { 37391d2c34aSHerbert Xu return 0; 37491d2c34aSHerbert Xu } 37591d2c34aSHerbert Xu 37691d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 37791d2c34aSHerbert Xu { 37891d2c34aSHerbert Xu } 379cfb478daSstephen hemminger #endif 3801da177e4SLinus Torvalds 3811da177e4SLinus Torvalds /* br_fdb.c */ 382348662a1SJoe Perches int br_fdb_init(void); 383348662a1SJoe Perches void br_fdb_fini(void); 384348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 385424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 386424bb9c9SToshiaki Makita const struct net_bridge_port *p, 387424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 388348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 389348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 390348662a1SJoe Perches void br_fdb_cleanup(unsigned long arg); 391348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 3921a620698SStephen Hemminger const struct net_bridge_port *p, int do_all); 393348662a1SJoe Perches struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, 394348662a1SJoe Perches const unsigned char *addr, __u16 vid); 395348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 396348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 397348662a1SJoe Perches unsigned long off); 398348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 399348662a1SJoe Perches const unsigned char *addr, u16 vid); 400348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 401a5642ab4SToshiaki Makita const unsigned char *addr, u16 vid, bool added_by_user); 40277162022SJohn Fastabend 403348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 404348662a1SJoe Perches struct net_device *dev, const unsigned char *addr); 405348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 406348662a1SJoe Perches const unsigned char *addr, u16 nlh_flags); 407348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 408348662a1SJoe Perches struct net_device *dev, int idx); 4098db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 4108db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 4111da177e4SLinus Torvalds 4121da177e4SLinus Torvalds /* br_forward.c */ 413348662a1SJoe Perches void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb); 414348662a1SJoe Perches int br_dev_queue_push_xmit(struct sk_buff *skb); 415348662a1SJoe Perches void br_forward(const struct net_bridge_port *to, 4167f7708f0SMichael Braun struct sk_buff *skb, struct sk_buff *skb0); 417348662a1SJoe Perches int br_forward_finish(struct sk_buff *skb); 418348662a1SJoe Perches void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast); 419348662a1SJoe Perches void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, 420867a5943SVlad Yasevich struct sk_buff *skb2, bool unicast); 4211da177e4SLinus Torvalds 4221da177e4SLinus Torvalds /* br_if.c */ 423348662a1SJoe Perches void br_port_carrier_check(struct net_bridge_port *p); 424348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 425348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 426348662a1SJoe Perches int br_add_if(struct net_bridge *br, struct net_device *dev); 427348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 428348662a1SJoe Perches int br_min_mtu(const struct net_bridge *br); 429348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 430c8f44affSMichał Mirosław netdev_features_t features); 431e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 4322796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 4331da177e4SLinus Torvalds 4341da177e4SLinus Torvalds /* br_input.c */ 435348662a1SJoe Perches int br_handle_frame_finish(struct sk_buff *skb); 436348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 4371da177e4SLinus Torvalds 438859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 439859828c0SJiri Pirko { 440859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 441859828c0SJiri Pirko } 442859828c0SJiri Pirko 443859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 444859828c0SJiri Pirko { 445859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 446859828c0SJiri Pirko } 447859828c0SJiri Pirko 4481da177e4SLinus Torvalds /* br_ioctl.c */ 449348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 450348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 451348662a1SJoe Perches void __user *arg); 4521da177e4SLinus Torvalds 453eb1d1641SHerbert Xu /* br_multicast.c */ 454eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 4552ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 456348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 457fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 458348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 459eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 460348662a1SJoe Perches void br_multicast_add_port(struct net_bridge_port *port); 461348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 462348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 463348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 464348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 465348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 466348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 467348662a1SJoe Perches void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 4685cb5e947SHerbert Xu struct sk_buff *skb); 469348662a1SJoe Perches void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 4705cb5e947SHerbert Xu struct sk_buff *skb, struct sk_buff *skb2); 471348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 472348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 473348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 474348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 475348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 476348662a1SJoe Perches struct net_bridge_mdb_entry * 477348662a1SJoe Perches br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); 478348662a1SJoe Perches struct net_bridge_mdb_entry * 479348662a1SJoe Perches br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, 480348662a1SJoe Perches struct br_ip *group); 481348662a1SJoe Perches void br_multicast_free_pg(struct rcu_head *head); 482348662a1SJoe Perches struct net_bridge_port_group * 483348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 484762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 485ccb1c31aSAmerigo Wang unsigned char state); 486348662a1SJoe Perches void br_mdb_init(void); 487348662a1SJoe Perches void br_mdb_uninit(void); 488348662a1SJoe Perches void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 48937a393bcSCong Wang struct br_ip *group, int type); 49085b35269SSridhar Samudrala 491cfd56754SCong Wang #define mlock_dereference(X, br) \ 492cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 493cfd56754SCong Wang 49485b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 49585b35269SSridhar Samudrala { 49685b35269SSridhar Samudrala return br->multicast_router == 2 || 49785b35269SSridhar Samudrala (br->multicast_router == 1 && 49885b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 49985b35269SSridhar Samudrala } 500b00589afSLinus Lüssing 501cc0fdd80SLinus Lüssing static inline bool 502cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 50390010b36SLinus Lüssing struct bridge_mcast_other_query *querier) 504b00589afSLinus Lüssing { 505cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 506cc0fdd80SLinus Lüssing (br->multicast_querier || timer_pending(&querier->timer)); 507cc0fdd80SLinus Lüssing } 508cc0fdd80SLinus Lüssing 509cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 510cc0fdd80SLinus Lüssing struct ethhdr *eth) 511cc0fdd80SLinus Lüssing { 512cc0fdd80SLinus Lüssing switch (eth->h_proto) { 513cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 51490010b36SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip4_other_query); 515cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 516cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 51790010b36SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip6_other_query); 518cc0fdd80SLinus Lüssing #endif 519cc0fdd80SLinus Lüssing default: 520cc0fdd80SLinus Lüssing return false; 521cc0fdd80SLinus Lüssing } 522b00589afSLinus Lüssing } 523eb1d1641SHerbert Xu #else 524eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 525eb1d1641SHerbert Xu struct net_bridge_port *port, 52606499098SVlad Yasevich struct sk_buff *skb, 52706499098SVlad Yasevich u16 vid) 528eb1d1641SHerbert Xu { 529eb1d1641SHerbert Xu return 0; 530eb1d1641SHerbert Xu } 531eb1d1641SHerbert Xu 532eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 533fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 534eb1d1641SHerbert Xu { 535eb1d1641SHerbert Xu return NULL; 536eb1d1641SHerbert Xu } 537eb1d1641SHerbert Xu 538eb1d1641SHerbert Xu static inline void br_multicast_add_port(struct net_bridge_port *port) 539eb1d1641SHerbert Xu { 540eb1d1641SHerbert Xu } 541eb1d1641SHerbert Xu 542eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 543eb1d1641SHerbert Xu { 544eb1d1641SHerbert Xu } 545eb1d1641SHerbert Xu 546eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 547eb1d1641SHerbert Xu { 548eb1d1641SHerbert Xu } 549eb1d1641SHerbert Xu 550eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 551eb1d1641SHerbert Xu { 552eb1d1641SHerbert Xu } 553eb1d1641SHerbert Xu 554eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 555eb1d1641SHerbert Xu { 556eb1d1641SHerbert Xu } 557eb1d1641SHerbert Xu 558eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 559eb1d1641SHerbert Xu { 560eb1d1641SHerbert Xu } 561eb1d1641SHerbert Xu 562eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 563eb1d1641SHerbert Xu { 564eb1d1641SHerbert Xu } 5655cb5e947SHerbert Xu 5665cb5e947SHerbert Xu static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 5675cb5e947SHerbert Xu struct sk_buff *skb) 5685cb5e947SHerbert Xu { 5695cb5e947SHerbert Xu } 5705cb5e947SHerbert Xu 5715cb5e947SHerbert Xu static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 5725cb5e947SHerbert Xu struct sk_buff *skb, 5735cb5e947SHerbert Xu struct sk_buff *skb2) 5745cb5e947SHerbert Xu { 5755cb5e947SHerbert Xu } 576eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 577eb1d1641SHerbert Xu { 57885b35269SSridhar Samudrala return 0; 579eb1d1641SHerbert Xu } 580cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 581cc0fdd80SLinus Lüssing struct ethhdr *eth) 582b00589afSLinus Lüssing { 583b00589afSLinus Lüssing return false; 584b00589afSLinus Lüssing } 585fdb184d1SRami Rosen static inline void br_mdb_init(void) 586fdb184d1SRami Rosen { 587fdb184d1SRami Rosen } 588fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 589fdb184d1SRami Rosen { 590fdb184d1SRami Rosen } 59185b35269SSridhar Samudrala #endif 592eb1d1641SHerbert Xu 593243a2e63SVlad Yasevich /* br_vlan.c */ 594243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 595348662a1SJoe Perches bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v, 59678851988SVlad Yasevich struct sk_buff *skb, u16 *vid); 597348662a1SJoe Perches bool br_allowed_egress(struct net_bridge *br, const struct net_port_vlans *v, 59885f46c6bSVlad Yasevich const struct sk_buff *skb); 599e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 600348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 60178851988SVlad Yasevich const struct net_port_vlans *v, 60278851988SVlad Yasevich struct sk_buff *skb); 603348662a1SJoe Perches int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); 604348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 605348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 6062b292fb4SToshiaki Makita bool br_vlan_find(struct net_bridge *br, u16 vid); 607348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 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 703552406c4SVlad Yasevich static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) 704243a2e63SVlad Yasevich { 705243a2e63SVlad Yasevich return -EOPNOTSUPP; 706243a2e63SVlad Yasevich } 707243a2e63SVlad Yasevich 708243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 709243a2e63SVlad Yasevich { 710243a2e63SVlad Yasevich return -EOPNOTSUPP; 711243a2e63SVlad Yasevich } 712243a2e63SVlad Yasevich 713243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 714243a2e63SVlad Yasevich { 715243a2e63SVlad Yasevich } 716243a2e63SVlad Yasevich 717a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 718a37b85c9SVlad Yasevich const struct net_bridge *br) 719a37b85c9SVlad Yasevich { 720a37b85c9SVlad Yasevich return NULL; 721a37b85c9SVlad Yasevich } 722a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 723a37b85c9SVlad Yasevich const struct net_bridge_port *p) 724a37b85c9SVlad Yasevich { 725a37b85c9SVlad Yasevich return NULL; 726a37b85c9SVlad Yasevich } 727a37b85c9SVlad Yasevich 728bc9a25d2SVlad Yasevich static inline bool nbp_vlan_find(struct net_bridge_port *port, u16 vid) 729bc9a25d2SVlad Yasevich { 730bc9a25d2SVlad Yasevich return false; 731bc9a25d2SVlad Yasevich } 732bc9a25d2SVlad Yasevich 73378851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 734a37b85c9SVlad Yasevich { 735a37b85c9SVlad Yasevich return 0; 736a37b85c9SVlad Yasevich } 73778851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 73878851988SVlad Yasevich { 73978851988SVlad Yasevich return VLAN_N_VID; /* Returns invalid vid */ 74078851988SVlad Yasevich } 7412796d0c6SVlad Yasevich 742d4f0e095SAlexei Starovoitov static inline int br_vlan_enabled(struct net_bridge *br) 7432796d0c6SVlad Yasevich { 7442796d0c6SVlad Yasevich return 0; 7452796d0c6SVlad Yasevich } 746243a2e63SVlad Yasevich #endif 747243a2e63SVlad Yasevich 7481da177e4SLinus Torvalds /* br_netfilter.c */ 749c0909713SStephen Hemminger #ifdef CONFIG_BRIDGE_NETFILTER 750348662a1SJoe Perches int br_netfilter_init(void); 751348662a1SJoe Perches void br_netfilter_fini(void); 752348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 753c0909713SStephen Hemminger #else 754c0909713SStephen Hemminger #define br_netfilter_init() (0) 755c0909713SStephen Hemminger #define br_netfilter_fini() do { } while (0) 7564adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 757c0909713SStephen Hemminger #endif 7581da177e4SLinus Torvalds 7591da177e4SLinus Torvalds /* br_stp.c */ 760348662a1SJoe Perches void br_log_state(const struct net_bridge_port *p); 761348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 762348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 763348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 7641da177e4SLinus Torvalds 765348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 766348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 767348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 768348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 76914f98f25Sstephen hemminger 77014f98f25Sstephen hemminger 7711da177e4SLinus Torvalds /* br_stp_if.c */ 772348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 773348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 774348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 775348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 776348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 777348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 778348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 779348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 780348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 781348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 782348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 7831da177e4SLinus Torvalds 7841da177e4SLinus Torvalds /* br_stp_bpdu.c */ 7857c85fbf0SPatrick McHardy struct stp_proto; 786348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 7877c85fbf0SPatrick McHardy struct net_device *dev); 7881da177e4SLinus Torvalds 7891da177e4SLinus Torvalds /* br_stp_timer.c */ 790348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 791348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 792348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 7931da177e4SLinus Torvalds 7941da177e4SLinus Torvalds /* br.c */ 795e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 796da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 797da678292SMichał Mirosław #endif 7981da177e4SLinus Torvalds 79911dc1f36SStephen Hemminger /* br_netlink.c */ 800149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 801348662a1SJoe Perches int br_netlink_init(void); 802348662a1SJoe Perches void br_netlink_fini(void); 803348662a1SJoe Perches void br_ifinfo_notify(int event, struct net_bridge_port *port); 804348662a1SJoe Perches int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg); 805348662a1SJoe Perches int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg); 806348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 807348662a1SJoe Perches u32 filter_mask); 80811dc1f36SStephen Hemminger 8091da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 8101da177e4SLinus Torvalds /* br_sysfs_if.c */ 81152cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 812348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 813348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 8141da177e4SLinus Torvalds 8151da177e4SLinus Torvalds /* br_sysfs_br.c */ 816348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 817348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 8181da177e4SLinus Torvalds 8191da177e4SLinus Torvalds #else 8201da177e4SLinus Torvalds 8210cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 8220cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 8230cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 8240cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 8251da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 8261da177e4SLinus Torvalds 8271da177e4SLinus Torvalds #endif 828