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> 21efb6de9bSBernhard Thaler #include <net/ip6_fib.h> 22243a2e63SVlad Yasevich #include <linux/if_vlan.h> 232594e906SNikolay Aleksandrov #include <linux/rhashtable.h> 2425127759SReshetova, Elena #include <linux/refcount.h> 251da177e4SLinus Torvalds 261da177e4SLinus Torvalds #define BR_HASH_BITS 8 271da177e4SLinus Torvalds #define BR_HASH_SIZE (1 << BR_HASH_BITS) 281da177e4SLinus Torvalds 291da177e4SLinus Torvalds #define BR_HOLD_TIME (1*HZ) 301da177e4SLinus Torvalds 311da177e4SLinus Torvalds #define BR_PORT_BITS 10 321da177e4SLinus Torvalds #define BR_MAX_PORTS (1<<BR_PORT_BITS) 331da177e4SLinus Torvalds 349cde0708SStephen Hemminger #define BR_VERSION "2.3" 359cde0708SStephen Hemminger 36515853ccSstephen hemminger /* Control of forwarding link local multicast */ 37515853ccSstephen hemminger #define BR_GROUPFWD_DEFAULT 0 38784b58a3SBernhard Thaler /* Don't allow forwarding of control protocols like STP, MAC PAUSE and LACP */ 395af48b59SNikolay Aleksandrov enum { 405af48b59SNikolay Aleksandrov BR_GROUPFWD_STP = BIT(0), 415af48b59SNikolay Aleksandrov BR_GROUPFWD_MACPAUSE = BIT(1), 425af48b59SNikolay Aleksandrov BR_GROUPFWD_LACP = BIT(2), 435af48b59SNikolay Aleksandrov }; 445af48b59SNikolay Aleksandrov 455af48b59SNikolay Aleksandrov #define BR_GROUPFWD_RESTRICTED (BR_GROUPFWD_STP | BR_GROUPFWD_MACPAUSE | \ 465af48b59SNikolay Aleksandrov BR_GROUPFWD_LACP) 47f2808d22SToshiaki Makita /* The Nearest Customer Bridge Group Address, 01-80-C2-00-00-[00,0B,0C,0D,0F] */ 48f2808d22SToshiaki Makita #define BR_GROUPFWD_8021AD 0xB801u 49515853ccSstephen hemminger 509cde0708SStephen Hemminger /* Path to usermode spanning tree program */ 519cde0708SStephen Hemminger #define BR_STP_PROG "/sbin/bridge-stp" 528cbb512eSStephen Hemminger 531da177e4SLinus Torvalds typedef struct bridge_id bridge_id; 541da177e4SLinus Torvalds typedef struct mac_addr mac_addr; 551da177e4SLinus Torvalds typedef __u16 port_id; 561da177e4SLinus Torvalds 571c1cb6d0SNikolay Aleksandrov struct bridge_id { 581da177e4SLinus Torvalds unsigned char prio[2]; 59e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 601da177e4SLinus Torvalds }; 611da177e4SLinus Torvalds 621c1cb6d0SNikolay Aleksandrov struct mac_addr { 63e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 641da177e4SLinus Torvalds }; 651da177e4SLinus Torvalds 66cc0fdd80SLinus Lüssing #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 67cc0fdd80SLinus Lüssing /* our own querier */ 6890010b36SLinus Lüssing struct bridge_mcast_own_query { 69cc0fdd80SLinus Lüssing struct timer_list timer; 70cc0fdd80SLinus Lüssing u32 startup_sent; 71cc0fdd80SLinus Lüssing }; 72cc0fdd80SLinus Lüssing 73cc0fdd80SLinus Lüssing /* other querier */ 7490010b36SLinus Lüssing struct bridge_mcast_other_query { 75cc0fdd80SLinus Lüssing struct timer_list timer; 76cc0fdd80SLinus Lüssing unsigned long delay_time; 77cc0fdd80SLinus Lüssing }; 78dc4eb53aSLinus Lüssing 79dc4eb53aSLinus Lüssing /* selected querier */ 80dc4eb53aSLinus Lüssing struct bridge_mcast_querier { 81dc4eb53aSLinus Lüssing struct br_ip addr; 822cd41431SLinus Lüssing struct net_bridge_port __rcu *port; 83dc4eb53aSLinus Lüssing }; 841080ab95SNikolay Aleksandrov 851080ab95SNikolay Aleksandrov /* IGMP/MLD statistics */ 861080ab95SNikolay Aleksandrov struct bridge_mcast_stats { 871080ab95SNikolay Aleksandrov struct br_mcast_stats mstats; 881080ab95SNikolay Aleksandrov struct u64_stats_sync syncp; 891080ab95SNikolay Aleksandrov }; 90cc0fdd80SLinus Lüssing #endif 91cc0fdd80SLinus Lüssing 926dada9b1SNikolay Aleksandrov struct br_vlan_stats { 936dada9b1SNikolay Aleksandrov u64 rx_bytes; 946dada9b1SNikolay Aleksandrov u64 rx_packets; 956dada9b1SNikolay Aleksandrov u64 tx_bytes; 966dada9b1SNikolay Aleksandrov u64 tx_packets; 976dada9b1SNikolay Aleksandrov struct u64_stats_sync syncp; 986dada9b1SNikolay Aleksandrov }; 996dada9b1SNikolay Aleksandrov 100efa5356bSRoopa Prabhu struct br_tunnel_info { 101efa5356bSRoopa Prabhu __be64 tunnel_id; 102efa5356bSRoopa Prabhu struct metadata_dst *tunnel_dst; 103efa5356bSRoopa Prabhu }; 104efa5356bSRoopa Prabhu 1052594e906SNikolay Aleksandrov /** 1062594e906SNikolay Aleksandrov * struct net_bridge_vlan - per-vlan entry 1072594e906SNikolay Aleksandrov * 1082594e906SNikolay Aleksandrov * @vnode: rhashtable member 1092594e906SNikolay Aleksandrov * @vid: VLAN id 1102594e906SNikolay Aleksandrov * @flags: bridge vlan flags 1116dada9b1SNikolay Aleksandrov * @stats: per-cpu VLAN statistics 1122594e906SNikolay Aleksandrov * @br: if MASTER flag set, this points to a bridge struct 1132594e906SNikolay Aleksandrov * @port: if MASTER flag unset, this points to a port struct 1142594e906SNikolay Aleksandrov * @refcnt: if MASTER flag set, this is bumped for each port referencing it 1152594e906SNikolay Aleksandrov * @brvlan: if MASTER flag unset, this points to the global per-VLAN context 1162594e906SNikolay Aleksandrov * for this VLAN entry 1172594e906SNikolay Aleksandrov * @vlist: sorted list of VLAN entries 1182594e906SNikolay Aleksandrov * @rcu: used for entry destruction 1192594e906SNikolay Aleksandrov * 1202594e906SNikolay Aleksandrov * This structure is shared between the global per-VLAN entries contained in 1212594e906SNikolay Aleksandrov * the bridge rhashtable and the local per-port per-VLAN entries contained in 1222594e906SNikolay Aleksandrov * the port's rhashtable. The union entries should be interpreted depending on 1232594e906SNikolay Aleksandrov * the entry flags that are set. 1242594e906SNikolay Aleksandrov */ 1252594e906SNikolay Aleksandrov struct net_bridge_vlan { 1262594e906SNikolay Aleksandrov struct rhash_head vnode; 127efa5356bSRoopa Prabhu struct rhash_head tnode; 1282594e906SNikolay Aleksandrov u16 vid; 1292594e906SNikolay Aleksandrov u16 flags; 1306dada9b1SNikolay Aleksandrov struct br_vlan_stats __percpu *stats; 131243a2e63SVlad Yasevich union { 132243a2e63SVlad Yasevich struct net_bridge *br; 1332594e906SNikolay Aleksandrov struct net_bridge_port *port; 1342594e906SNikolay Aleksandrov }; 1352594e906SNikolay Aleksandrov union { 13625127759SReshetova, Elena refcount_t refcnt; 1372594e906SNikolay Aleksandrov struct net_bridge_vlan *brvlan; 1382594e906SNikolay Aleksandrov }; 139efa5356bSRoopa Prabhu 140efa5356bSRoopa Prabhu struct br_tunnel_info tinfo; 141efa5356bSRoopa Prabhu 1422594e906SNikolay Aleksandrov struct list_head vlist; 1432594e906SNikolay Aleksandrov 144243a2e63SVlad Yasevich struct rcu_head rcu; 1452594e906SNikolay Aleksandrov }; 1462594e906SNikolay Aleksandrov 1472594e906SNikolay Aleksandrov /** 1482594e906SNikolay Aleksandrov * struct net_bridge_vlan_group 1492594e906SNikolay Aleksandrov * 1502594e906SNikolay Aleksandrov * @vlan_hash: VLAN entry rhashtable 1512594e906SNikolay Aleksandrov * @vlan_list: sorted VLAN entry list 1522594e906SNikolay Aleksandrov * @num_vlans: number of total VLAN entries 15377751ee8SNikolay Aleksandrov * @pvid: PVID VLAN id 1542594e906SNikolay Aleksandrov * 1552594e906SNikolay Aleksandrov * IMPORTANT: Be careful when checking if there're VLAN entries using list 1562594e906SNikolay Aleksandrov * primitives because the bridge can have entries in its list which 1572594e906SNikolay Aleksandrov * are just for global context but not for filtering, i.e. they have 1582594e906SNikolay Aleksandrov * the master flag set but not the brentry flag. If you have to check 1592594e906SNikolay Aleksandrov * if there're "real" entries in the bridge please test @num_vlans 1602594e906SNikolay Aleksandrov */ 1612594e906SNikolay Aleksandrov struct net_bridge_vlan_group { 1622594e906SNikolay Aleksandrov struct rhashtable vlan_hash; 163efa5356bSRoopa Prabhu struct rhashtable tunnel_hash; 1642594e906SNikolay Aleksandrov struct list_head vlan_list; 1656cbdceebSVlad Yasevich u16 num_vlans; 16677751ee8SNikolay Aleksandrov u16 pvid; 167243a2e63SVlad Yasevich }; 168243a2e63SVlad Yasevich 169eb793583SNikolay Aleksandrov struct net_bridge_fdb_key { 170eb793583SNikolay Aleksandrov mac_addr addr; 171eb793583SNikolay Aleksandrov u16 vlan_id; 172eb793583SNikolay Aleksandrov }; 173eb793583SNikolay Aleksandrov 1741214628cSNikolay Aleksandrov struct net_bridge_fdb_entry { 175eb793583SNikolay Aleksandrov struct rhash_head rhnode; 1761da177e4SLinus Torvalds struct net_bridge_port *dst; 1771da177e4SLinus Torvalds 178eb793583SNikolay Aleksandrov struct net_bridge_fdb_key key; 179eb793583SNikolay Aleksandrov struct hlist_node fdb_node; 18093859b13SJiri Pirko unsigned char is_local:1, 18193859b13SJiri Pirko is_static:1, 182435f2e7cSNikolay Aleksandrov is_sticky:1, 183cf6b8e1eSScott Feldman added_by_user:1, 1849fe8bcecSArkadi Sharshevsky added_by_external_learn:1, 1859fe8bcecSArkadi Sharshevsky offloaded:1; 1861214628cSNikolay Aleksandrov 1871214628cSNikolay Aleksandrov /* write-heavy members should not affect lookups */ 1881214628cSNikolay Aleksandrov unsigned long updated ____cacheline_aligned_in_smp; 1891214628cSNikolay Aleksandrov unsigned long used; 1901214628cSNikolay Aleksandrov 191b22fbf22SNikolay Aleksandrov struct rcu_head rcu; 1921da177e4SLinus Torvalds }; 1931da177e4SLinus Torvalds 1949d06b6d8SElad Raz #define MDB_PG_FLAGS_PERMANENT BIT(0) 1959d06b6d8SElad Raz #define MDB_PG_FLAGS_OFFLOAD BIT(1) 1969d06b6d8SElad Raz 197eb1d1641SHerbert Xu struct net_bridge_port_group { 198eb1d1641SHerbert Xu struct net_bridge_port *port; 199e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 200eb1d1641SHerbert Xu struct hlist_node mglist; 201eb1d1641SHerbert Xu struct rcu_head rcu; 202eb1d1641SHerbert Xu struct timer_list timer; 2038ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 2049d06b6d8SElad Raz unsigned char flags; 2056db6f0eaSFelix Fietkau unsigned char eth_addr[ETH_ALEN]; 206eb1d1641SHerbert Xu }; 207eb1d1641SHerbert Xu 2081c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_entry { 209eb1d1641SHerbert Xu struct hlist_node hlist[2]; 210eb1d1641SHerbert Xu struct net_bridge *br; 211e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 212eb1d1641SHerbert Xu struct rcu_head rcu; 213eb1d1641SHerbert Xu struct timer_list timer; 2148ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 215ff0fd34eSAndrew Lunn bool host_joined; 216eb1d1641SHerbert Xu }; 217eb1d1641SHerbert Xu 2181c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_htable { 219eb1d1641SHerbert Xu struct hlist_head *mhash; 220eb1d1641SHerbert Xu struct rcu_head rcu; 221eb1d1641SHerbert Xu struct net_bridge_mdb_htable *old; 222eb1d1641SHerbert Xu u32 size; 223eb1d1641SHerbert Xu u32 max; 224eb1d1641SHerbert Xu u32 secret; 225eb1d1641SHerbert Xu u32 ver; 226eb1d1641SHerbert Xu }; 227eb1d1641SHerbert Xu 2281f90c7f3SNikolay Aleksandrov struct net_bridge_port { 2291da177e4SLinus Torvalds struct net_bridge *br; 2301da177e4SLinus Torvalds struct net_device *dev; 2311da177e4SLinus Torvalds struct list_head list; 2321da177e4SLinus Torvalds 2331f90c7f3SNikolay Aleksandrov unsigned long flags; 2341f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 2351f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 2361f90c7f3SNikolay Aleksandrov #endif 2372756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 2381f90c7f3SNikolay Aleksandrov 2391da177e4SLinus Torvalds /* STP */ 2401da177e4SLinus Torvalds u8 priority; 2411da177e4SLinus Torvalds u8 state; 2421da177e4SLinus Torvalds u16 port_no; 2431da177e4SLinus Torvalds unsigned char topology_change_ack; 2441da177e4SLinus Torvalds unsigned char config_pending; 2451da177e4SLinus Torvalds port_id port_id; 2461da177e4SLinus Torvalds port_id designated_port; 2471da177e4SLinus Torvalds bridge_id designated_root; 2481da177e4SLinus Torvalds bridge_id designated_bridge; 2491da177e4SLinus Torvalds u32 path_cost; 2501da177e4SLinus Torvalds u32 designated_cost; 2510c03150eSstephen hemminger unsigned long designated_age; 2521da177e4SLinus Torvalds 2531da177e4SLinus Torvalds struct timer_list forward_delay_timer; 2541da177e4SLinus Torvalds struct timer_list hold_timer; 2551da177e4SLinus Torvalds struct timer_list message_age_timer; 2561da177e4SLinus Torvalds struct kobject kobj; 2571da177e4SLinus Torvalds struct rcu_head rcu; 2583982d3d2SFischer, Anna 259eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 26090010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 261cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 26290010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 263cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 264eb1d1641SHerbert Xu unsigned char multicast_router; 2651080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 266eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 267eb1d1641SHerbert Xu struct hlist_head mglist; 268eb1d1641SHerbert Xu struct hlist_node rlist; 269eb1d1641SHerbert Xu #endif 270e0f43752SSimon Arlott 271e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 272e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 273e0f43752SSimon Arlott #endif 27491d2c34aSHerbert Xu 27591d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 27691d2c34aSHerbert Xu struct netpoll *np; 27791d2c34aSHerbert Xu #endif 2786bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 2796bc506b4SIdo Schimmel int offload_fwd_mark; 2806bc506b4SIdo Schimmel #endif 2815af48b59SNikolay Aleksandrov u16 group_fwd_mask; 2822756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 2831da177e4SLinus Torvalds }; 2841da177e4SLinus Torvalds 285705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 286705e0deaSTyler Hicks 287e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 288f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 289e028e4b8SVlad Yasevich 290f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 291f350a0a8SJiri Pirko 292b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 293b5ed54e9Sstephen hemminger { 294716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 295b5ed54e9Sstephen hemminger } 296b5ed54e9Sstephen hemminger 2971fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 298b5ed54e9Sstephen hemminger { 299ec1e5610SEric Dumazet return br_port_exists(dev) ? 300ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 301b5ed54e9Sstephen hemminger } 302b5ed54e9Sstephen hemminger 3030baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 3040baa10ffSArkadi Sharshevsky { 3050baa10ffSArkadi Sharshevsky return br_port_exists(dev) ? 3060baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3070baa10ffSArkadi Sharshevsky } 3080baa10ffSArkadi Sharshevsky 309ae75767eSNikolay Aleksandrov enum net_bridge_opts { 310ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 311ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 3128df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 3138df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 3148df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 315be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 31613cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 317675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 318675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 319675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 320675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 321c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 3223341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 3239163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 324ae75767eSNikolay Aleksandrov }; 325ae75767eSNikolay Aleksandrov 3261f90c7f3SNikolay Aleksandrov struct net_bridge { 3271da177e4SLinus Torvalds spinlock_t lock; 3281f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 3291da177e4SLinus Torvalds struct list_head port_list; 3301da177e4SLinus Torvalds struct net_device *dev; 3318f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 332ae75767eSNikolay Aleksandrov unsigned long options; 3331f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3341f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3351f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3361f90c7f3SNikolay Aleksandrov u16 default_pvid; 3371f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3381f90c7f3SNikolay Aleksandrov #endif 3391f90c7f3SNikolay Aleksandrov 340eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 34134666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 342efb6de9bSBernhard Thaler union { 3434adf0af6SSimon Wunderlich struct rtable fake_rtable; 344efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 345efb6de9bSBernhard Thaler }; 3464adf0af6SSimon Wunderlich #endif 347515853ccSstephen hemminger u16 group_fwd_mask; 348f2808d22SToshiaki Makita u16 group_fwd_mask_required; 349515853ccSstephen hemminger 3501da177e4SLinus Torvalds /* STP */ 3511da177e4SLinus Torvalds bridge_id designated_root; 3521da177e4SLinus Torvalds bridge_id bridge_id; 3531f90c7f3SNikolay Aleksandrov unsigned char topology_change; 3541f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 3551f90c7f3SNikolay Aleksandrov u16 root_port; 3561da177e4SLinus Torvalds unsigned long max_age; 3571da177e4SLinus Torvalds unsigned long hello_time; 3581da177e4SLinus Torvalds unsigned long forward_delay; 3591da177e4SLinus Torvalds unsigned long ageing_time; 36034d8acd8SVivien Didelot unsigned long bridge_max_age; 3611da177e4SLinus Torvalds unsigned long bridge_hello_time; 3621da177e4SLinus Torvalds unsigned long bridge_forward_delay; 36334d8acd8SVivien Didelot unsigned long bridge_ageing_time; 36435750b0bSNikolay Aleksandrov u32 root_path_cost; 3651da177e4SLinus Torvalds 366fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 3679cde0708SStephen Hemminger 3689cde0708SStephen Hemminger enum { 3699cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 3709cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 3719cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 3729cde0708SStephen Hemminger } stp_enabled; 3739cde0708SStephen Hemminger 374eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 375eb1d1641SHerbert Xu 376eb1d1641SHerbert Xu u32 hash_elasticity; 377eb1d1641SHerbert Xu u32 hash_max; 378eb1d1641SHerbert Xu 379eb1d1641SHerbert Xu u32 multicast_last_member_count; 380eb1d1641SHerbert Xu u32 multicast_startup_query_count; 381eb1d1641SHerbert Xu 3825e923585SNikolay Aleksandrov u8 multicast_igmp_version; 383675779adSNikolay Aleksandrov u8 multicast_router; 384675779adSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 385675779adSNikolay Aleksandrov u8 multicast_mld_version; 386675779adSNikolay Aleksandrov #endif 38735750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 388eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 389eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 390eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 391eb1d1641SHerbert Xu unsigned long multicast_query_interval; 392eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 393eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 394eb1d1641SHerbert Xu 395e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 396eb1d1641SHerbert Xu struct hlist_head router_list; 397eb1d1641SHerbert Xu 398eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 39990010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 40090010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 401dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 4021080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 403cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 40490010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 40590010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 406dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 407cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 408eb1d1641SHerbert Xu #endif 409eb1d1641SHerbert Xu 4101da177e4SLinus Torvalds struct timer_list hello_timer; 4111da177e4SLinus Torvalds struct timer_list tcn_timer; 4121da177e4SLinus Torvalds struct timer_list topology_change_timer; 413f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 41443b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 415e028e4b8SVlad Yasevich u32 auto_cnt; 4166bc506b4SIdo Schimmel 4176bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4186bc506b4SIdo Schimmel int offload_fwd_mark; 4196bc506b4SIdo Schimmel #endif 420eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4211da177e4SLinus Torvalds }; 4221da177e4SLinus Torvalds 42368b7c895SHerbert Xu struct br_input_skb_cb { 42468b7c895SHerbert Xu struct net_device *brdev; 42593fdd47eSHerbert Xu 42632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 427eb1d1641SHerbert Xu int igmp; 428eb1d1641SHerbert Xu int mrouters_only; 42932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 43093fdd47eSHerbert Xu 431842a9ae0SJouni Malinen bool proxyarp_replied; 4327d850abdSNikolay Aleksandrov bool src_port_isolated; 43393fdd47eSHerbert Xu 43420adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 43520adfa1aSVlad Yasevich bool vlan_filtered; 43620adfa1aSVlad Yasevich #endif 4376bc506b4SIdo Schimmel 4386bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4396bc506b4SIdo Schimmel int offload_fwd_mark; 4406bc506b4SIdo Schimmel #endif 44168b7c895SHerbert Xu }; 44268b7c895SHerbert Xu 44368b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 44468b7c895SHerbert Xu 44532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 44632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 44732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 44832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 44932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 45032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 45128a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 45228a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 45328a16c97Sstephen hemminger 45428a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 45528a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 45628a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 45728a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 45828a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 45928a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 46028a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 46128a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 46228a16c97Sstephen hemminger 46328a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 46428a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 46528a16c97Sstephen hemminger 4661da177e4SLinus Torvalds /* called under bridge lock */ 4671da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 4681da177e4SLinus Torvalds { 4691da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 4701da177e4SLinus Torvalds } 4711da177e4SLinus Torvalds 4722594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 4732594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 4742594e906SNikolay Aleksandrov { 4752594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 4762594e906SNikolay Aleksandrov } 4772594e906SNikolay Aleksandrov 4782594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 4792594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 4802594e906SNikolay Aleksandrov { 4812594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 4822594e906SNikolay Aleksandrov } 4832594e906SNikolay Aleksandrov 4846be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 4852594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 4862594e906SNikolay Aleksandrov { 4872594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 4882594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 4892594e906SNikolay Aleksandrov return true; 4902594e906SNikolay Aleksandrov else 4912594e906SNikolay Aleksandrov return false; 4922594e906SNikolay Aleksandrov } 4932594e906SNikolay Aleksandrov 4942594e906SNikolay Aleksandrov return true; 4952594e906SNikolay Aleksandrov } 4962594e906SNikolay Aleksandrov 497ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 498ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 499ae75767eSNikolay Aleksandrov { 500ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 501ae75767eSNikolay Aleksandrov } 502ae75767eSNikolay Aleksandrov 503ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 504ae75767eSNikolay Aleksandrov 5051da177e4SLinus Torvalds /* br_device.c */ 506348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 507348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 508348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 509cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 51091d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 51191d2c34aSHerbert Xu struct sk_buff *skb) 51291d2c34aSHerbert Xu { 51391d2c34aSHerbert Xu struct netpoll *np = p->np; 51491d2c34aSHerbert Xu 51591d2c34aSHerbert Xu if (np) 51691d2c34aSHerbert Xu netpoll_send_skb(np, skb); 51791d2c34aSHerbert Xu } 51891d2c34aSHerbert Xu 519a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 520348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 52191d2c34aSHerbert Xu #else 5229f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 52391d2c34aSHerbert Xu struct sk_buff *skb) 52491d2c34aSHerbert Xu { 52591d2c34aSHerbert Xu } 52691d2c34aSHerbert Xu 527a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 52891d2c34aSHerbert Xu { 52991d2c34aSHerbert Xu return 0; 53091d2c34aSHerbert Xu } 53191d2c34aSHerbert Xu 53291d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 53391d2c34aSHerbert Xu { 53491d2c34aSHerbert Xu } 535cfb478daSstephen hemminger #endif 5361da177e4SLinus Torvalds 5371da177e4SLinus Torvalds /* br_fdb.c */ 538348662a1SJoe Perches int br_fdb_init(void); 539348662a1SJoe Perches void br_fdb_fini(void); 540eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 541eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 542348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 543424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 544424bb9c9SToshiaki Makita const struct net_bridge_port *p, 545424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 546348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 547348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 548f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 549348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 5501ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 551bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 552bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 553bfd0aeacSNikolay Aleksandrov __u16 vid); 554348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 555348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 556348662a1SJoe Perches unsigned long off); 557348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 558348662a1SJoe Perches const unsigned char *addr, u16 vid); 559348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 560a5642ab4SToshiaki Makita const unsigned char *addr, u16 vid, bool added_by_user); 56177162022SJohn Fastabend 562348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 563f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 564348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 565f6f6424bSJiri Pirko const unsigned char *addr, u16 vid, u16 nlh_flags); 566348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 567d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 5688db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 5698db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 5703aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 571161d82deSPetr Machata const unsigned char *addr, u16 vid, 572161d82deSPetr Machata bool swdev_notify); 5733aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 574161d82deSPetr Machata const unsigned char *addr, u16 vid, 575161d82deSPetr Machata bool swdev_notify); 5769fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 577e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 5781da177e4SLinus Torvalds 5791da177e4SLinus Torvalds /* br_forward.c */ 5808addd5e7SNikolay Aleksandrov enum br_pkt_type { 5818addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 5828addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 5838addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 5848addd5e7SNikolay Aleksandrov }; 5850c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 586b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 58737b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 5880c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 58937b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 5908addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 5911da177e4SLinus Torvalds 5927d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 5937d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 5947d850abdSNikolay Aleksandrov const struct sk_buff *skb) 5957d850abdSNikolay Aleksandrov { 5967d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 5977d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 5987d850abdSNikolay Aleksandrov } 5997d850abdSNikolay Aleksandrov 6001da177e4SLinus Torvalds /* br_if.c */ 601faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 602348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 603348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 604ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 605ca752be0SDavid Ahern struct netlink_ext_ack *extack); 606348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 607804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 608348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 609c8f44affSMichał Mirosław netdev_features_t features); 610e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 6112796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 6122756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 6131da177e4SLinus Torvalds 6141da177e4SLinus Torvalds /* br_input.c */ 6150c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 616348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 6171da177e4SLinus Torvalds 618859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 619859828c0SJiri Pirko { 620859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 621859828c0SJiri Pirko } 622859828c0SJiri Pirko 6234d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 6244d4fd361SPetr Machata { 6254d4fd361SPetr Machata return rcu_dereference_rtnl(dev->rx_handler) == br_handle_frame; 6264d4fd361SPetr Machata } 6274d4fd361SPetr Machata 628859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 629859828c0SJiri Pirko { 630859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 631859828c0SJiri Pirko } 632859828c0SJiri Pirko 6334d4fd361SPetr Machata static inline struct net_bridge_port * 6344d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 6354d4fd361SPetr Machata { 6364d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 6374d4fd361SPetr Machata } 6384d4fd361SPetr Machata 6391da177e4SLinus Torvalds /* br_ioctl.c */ 640348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 641348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 642348662a1SJoe Perches void __user *arg); 6431da177e4SLinus Torvalds 644eb1d1641SHerbert Xu /* br_multicast.c */ 645eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 6462ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 647348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 648fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 649348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 650eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 6511080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 652348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 653348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 654348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 655348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 656348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 657348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 658e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 65937b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 66037b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 661348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 662348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 663348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 664348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 665348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 6665e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 667aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 668aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 669aa2ae3e7SNikolay Aleksandrov #endif 670348662a1SJoe Perches struct net_bridge_mdb_entry * 671348662a1SJoe Perches br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); 672348662a1SJoe Perches struct net_bridge_mdb_entry * 673348662a1SJoe Perches br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, 674348662a1SJoe Perches struct br_ip *group); 675348662a1SJoe Perches void br_multicast_free_pg(struct rcu_head *head); 676348662a1SJoe Perches struct net_bridge_port_group * 677348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 678762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 6796db6f0eaSFelix Fietkau unsigned char flags, const unsigned char *src); 680348662a1SJoe Perches void br_mdb_init(void); 681348662a1SJoe Perches void br_mdb_uninit(void); 68245ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 68345ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 684949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 685949f1e39SSatish Ashok int type); 6861080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 687a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 6881080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 689b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 6901080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 6911080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 6921080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 69385b35269SSridhar Samudrala 694cfd56754SCong Wang #define mlock_dereference(X, br) \ 695cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 696cfd56754SCong Wang 69785b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 69885b35269SSridhar Samudrala { 69985b35269SSridhar Samudrala return br->multicast_router == 2 || 70085b35269SSridhar Samudrala (br->multicast_router == 1 && 70185b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 70285b35269SSridhar Samudrala } 703b00589afSLinus Lüssing 704cc0fdd80SLinus Lüssing static inline bool 705cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 7060888d5f3Sdaniel struct bridge_mcast_other_query *querier, 7070888d5f3Sdaniel const bool is_ipv6) 708b00589afSLinus Lüssing { 7090888d5f3Sdaniel bool own_querier_enabled; 7100888d5f3Sdaniel 711675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 712675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 7130888d5f3Sdaniel own_querier_enabled = false; 7140888d5f3Sdaniel else 7150888d5f3Sdaniel own_querier_enabled = true; 7160888d5f3Sdaniel } else { 7170888d5f3Sdaniel own_querier_enabled = false; 7180888d5f3Sdaniel } 7190888d5f3Sdaniel 720cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 7210888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 722cc0fdd80SLinus Lüssing } 723cc0fdd80SLinus Lüssing 724cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 725cc0fdd80SLinus Lüssing struct ethhdr *eth) 726cc0fdd80SLinus Lüssing { 727cc0fdd80SLinus Lüssing switch (eth->h_proto) { 728cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 7290888d5f3Sdaniel return __br_multicast_querier_exists(br, 7300888d5f3Sdaniel &br->ip4_other_query, false); 731cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 732cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 7330888d5f3Sdaniel return __br_multicast_querier_exists(br, 7340888d5f3Sdaniel &br->ip6_other_query, true); 735cc0fdd80SLinus Lüssing #endif 736cc0fdd80SLinus Lüssing default: 737cc0fdd80SLinus Lüssing return false; 738cc0fdd80SLinus Lüssing } 739b00589afSLinus Lüssing } 7401080ab95SNikolay Aleksandrov 7411080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 7421080ab95SNikolay Aleksandrov { 7431080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 7441080ab95SNikolay Aleksandrov } 745eb1d1641SHerbert Xu #else 746eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 747eb1d1641SHerbert Xu struct net_bridge_port *port, 74806499098SVlad Yasevich struct sk_buff *skb, 74906499098SVlad Yasevich u16 vid) 750eb1d1641SHerbert Xu { 751eb1d1641SHerbert Xu return 0; 752eb1d1641SHerbert Xu } 753eb1d1641SHerbert Xu 754eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 755fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 756eb1d1641SHerbert Xu { 757eb1d1641SHerbert Xu return NULL; 758eb1d1641SHerbert Xu } 759eb1d1641SHerbert Xu 7601080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 761eb1d1641SHerbert Xu { 7621080ab95SNikolay Aleksandrov return 0; 763eb1d1641SHerbert Xu } 764eb1d1641SHerbert Xu 765eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 766eb1d1641SHerbert Xu { 767eb1d1641SHerbert Xu } 768eb1d1641SHerbert Xu 769eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 770eb1d1641SHerbert Xu { 771eb1d1641SHerbert Xu } 772eb1d1641SHerbert Xu 773eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 774eb1d1641SHerbert Xu { 775eb1d1641SHerbert Xu } 776eb1d1641SHerbert Xu 777eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 778eb1d1641SHerbert Xu { 779eb1d1641SHerbert Xu } 780eb1d1641SHerbert Xu 781eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 782eb1d1641SHerbert Xu { 783eb1d1641SHerbert Xu } 784eb1d1641SHerbert Xu 785eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 786eb1d1641SHerbert Xu { 787eb1d1641SHerbert Xu } 7885cb5e947SHerbert Xu 789a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 790a7ce45a7SNikolay Aleksandrov { 791a7ce45a7SNikolay Aleksandrov } 792a7ce45a7SNikolay Aleksandrov 79337b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 79437b090e6SNikolay Aleksandrov struct sk_buff *skb, 79537b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 7965cb5e947SHerbert Xu { 7975cb5e947SHerbert Xu } 7985cb5e947SHerbert Xu 799eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 800eb1d1641SHerbert Xu { 80103aaa9e2SGustavo A. R. Silva return false; 802eb1d1641SHerbert Xu } 80337b090e6SNikolay Aleksandrov 804cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 805cc0fdd80SLinus Lüssing struct ethhdr *eth) 806b00589afSLinus Lüssing { 807b00589afSLinus Lüssing return false; 808b00589afSLinus Lüssing } 80937b090e6SNikolay Aleksandrov 810fdb184d1SRami Rosen static inline void br_mdb_init(void) 811fdb184d1SRami Rosen { 812fdb184d1SRami Rosen } 81337b090e6SNikolay Aleksandrov 814fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 815fdb184d1SRami Rosen { 816fdb184d1SRami Rosen } 8171080ab95SNikolay Aleksandrov 8181080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 8191080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 820a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 821a65056ecSNikolay Aleksandrov u8 type, u8 dir) 8221080ab95SNikolay Aleksandrov { 8231080ab95SNikolay Aleksandrov } 8241080ab95SNikolay Aleksandrov 8251080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 8261080ab95SNikolay Aleksandrov { 8271080ab95SNikolay Aleksandrov return 0; 8281080ab95SNikolay Aleksandrov } 8291080ab95SNikolay Aleksandrov 830b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 831b6fe0440SIdo Schimmel { 832b6fe0440SIdo Schimmel } 833b6fe0440SIdo Schimmel 8341080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 8351080ab95SNikolay Aleksandrov { 8361080ab95SNikolay Aleksandrov return 0; 8371080ab95SNikolay Aleksandrov } 83885b35269SSridhar Samudrala #endif 839eb1d1641SHerbert Xu 840243a2e63SVlad Yasevich /* br_vlan.c */ 841243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 84277751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 84377751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 8442594e906SNikolay Aleksandrov u16 *vid); 84577751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 84685f46c6bSVlad Yasevich const struct sk_buff *skb); 847e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 848348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 84911538d03SRoopa Prabhu const struct net_bridge_port *port, 8502594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 85178851988SVlad Yasevich struct sk_buff *skb); 852f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 853f418af63SNikolay Aleksandrov bool *changed); 854348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 855348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 8562594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 857204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 858a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 859348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 860d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 861204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 8626dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 8639163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 8645be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 86596a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 8660f963b75SNikolay Aleksandrov int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid); 867f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 868f418af63SNikolay Aleksandrov bool *changed); 869348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 870348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 8715be5a2dfSVlad Yasevich int nbp_vlan_init(struct net_bridge_port *port); 8722594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 873a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 874a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 875a37b85c9SVlad Yasevich 8762594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 877a37b85c9SVlad Yasevich const struct net_bridge *br) 878a37b85c9SVlad Yasevich { 879907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 880a37b85c9SVlad Yasevich } 881a37b85c9SVlad Yasevich 8822594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 883a37b85c9SVlad Yasevich const struct net_bridge_port *p) 884a37b85c9SVlad Yasevich { 885907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 886907b1e6eSNikolay Aleksandrov } 887907b1e6eSNikolay Aleksandrov 888907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 889907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 890907b1e6eSNikolay Aleksandrov { 891907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 892907b1e6eSNikolay Aleksandrov } 893907b1e6eSNikolay Aleksandrov 894907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 895907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 896907b1e6eSNikolay Aleksandrov { 897907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 898a37b85c9SVlad Yasevich } 899a37b85c9SVlad Yasevich 900a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 901a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 902a37b85c9SVlad Yasevich */ 903a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 904a37b85c9SVlad Yasevich { 905a37b85c9SVlad Yasevich int err = 0; 906a37b85c9SVlad Yasevich 9072594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 908df8a39deSJiri Pirko *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; 9092594e906SNikolay Aleksandrov } else { 910a37b85c9SVlad Yasevich *vid = 0; 911a37b85c9SVlad Yasevich err = -EINVAL; 912a37b85c9SVlad Yasevich } 913a37b85c9SVlad Yasevich 914a37b85c9SVlad Yasevich return err; 915a37b85c9SVlad Yasevich } 91678851988SVlad Yasevich 91777751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 91878851988SVlad Yasevich { 91977751ee8SNikolay Aleksandrov if (!vg) 9205be5a2dfSVlad Yasevich return 0; 9215be5a2dfSVlad Yasevich 92278851988SVlad Yasevich smp_rmb(); 92377751ee8SNikolay Aleksandrov return vg->pvid; 92478851988SVlad Yasevich } 92578851988SVlad Yasevich 926243a2e63SVlad Yasevich #else 92777751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 92877751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 9292594e906SNikolay Aleksandrov struct sk_buff *skb, 9302594e906SNikolay Aleksandrov u16 *vid) 9312594e906SNikolay Aleksandrov { 9322594e906SNikolay Aleksandrov return true; 9332594e906SNikolay Aleksandrov } 9342594e906SNikolay Aleksandrov 9352594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 93685f46c6bSVlad Yasevich const struct sk_buff *skb) 93785f46c6bSVlad Yasevich { 93885f46c6bSVlad Yasevich return true; 93985f46c6bSVlad Yasevich } 94085f46c6bSVlad Yasevich 941e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 942e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 943e0d7968aSToshiaki Makita { 944e0d7968aSToshiaki Makita return true; 945e0d7968aSToshiaki Makita } 946e0d7968aSToshiaki Makita 94778851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 94811538d03SRoopa Prabhu const struct net_bridge_port *port, 9492594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 95078851988SVlad Yasevich struct sk_buff *skb) 95178851988SVlad Yasevich { 95278851988SVlad Yasevich return skb; 95378851988SVlad Yasevich } 95478851988SVlad Yasevich 955f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 956f418af63SNikolay Aleksandrov bool *changed) 957243a2e63SVlad Yasevich { 958f418af63SNikolay Aleksandrov *changed = false; 959243a2e63SVlad Yasevich return -EOPNOTSUPP; 960243a2e63SVlad Yasevich } 961243a2e63SVlad Yasevich 962243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 963243a2e63SVlad Yasevich { 964243a2e63SVlad Yasevich return -EOPNOTSUPP; 965243a2e63SVlad Yasevich } 966243a2e63SVlad Yasevich 967243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 968243a2e63SVlad Yasevich { 969243a2e63SVlad Yasevich } 970243a2e63SVlad Yasevich 971204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 972204177f3SToshiaki Makita { 973204177f3SToshiaki Makita } 974204177f3SToshiaki Makita 9755be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 9768580e211SToshiaki Makita { 9775be5a2dfSVlad Yasevich return 0; 9788580e211SToshiaki Makita } 9798580e211SToshiaki Makita 980f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 981f418af63SNikolay Aleksandrov bool *changed) 982243a2e63SVlad Yasevich { 983f418af63SNikolay Aleksandrov *changed = false; 984243a2e63SVlad Yasevich return -EOPNOTSUPP; 985243a2e63SVlad Yasevich } 986243a2e63SVlad Yasevich 987243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 988243a2e63SVlad Yasevich { 989243a2e63SVlad Yasevich return -EOPNOTSUPP; 990243a2e63SVlad Yasevich } 991243a2e63SVlad Yasevich 992243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 993243a2e63SVlad Yasevich { 994243a2e63SVlad Yasevich } 995243a2e63SVlad Yasevich 9962594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 9972594e906SNikolay Aleksandrov u16 vid) 998a37b85c9SVlad Yasevich { 999a37b85c9SVlad Yasevich return NULL; 1000a37b85c9SVlad Yasevich } 1001bc9a25d2SVlad Yasevich 10025be5a2dfSVlad Yasevich static inline int nbp_vlan_init(struct net_bridge_port *port) 10035be5a2dfSVlad Yasevich { 10045be5a2dfSVlad Yasevich return 0; 10055be5a2dfSVlad Yasevich } 10065be5a2dfSVlad Yasevich 100778851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1008a37b85c9SVlad Yasevich { 1009a37b85c9SVlad Yasevich return 0; 1010a37b85c9SVlad Yasevich } 10112594e906SNikolay Aleksandrov 101277751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 101378851988SVlad Yasevich { 10143df6bf45SVlad Yasevich return 0; 101578851988SVlad Yasevich } 10162796d0c6SVlad Yasevich 1017a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1018a7854037SNikolay Aleksandrov unsigned long val) 1019a7854037SNikolay Aleksandrov { 1020a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1021a7854037SNikolay Aleksandrov } 10222594e906SNikolay Aleksandrov 10232594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 10242594e906SNikolay Aleksandrov u32 filter_mask) 10252594e906SNikolay Aleksandrov { 10262594e906SNikolay Aleksandrov return 0; 10272594e906SNikolay Aleksandrov } 10282594e906SNikolay Aleksandrov 10292594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 10302594e906SNikolay Aleksandrov const struct net_bridge *br) 10312594e906SNikolay Aleksandrov { 10322594e906SNikolay Aleksandrov return NULL; 10332594e906SNikolay Aleksandrov } 10342594e906SNikolay Aleksandrov 10352594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 10362594e906SNikolay Aleksandrov const struct net_bridge_port *p) 10372594e906SNikolay Aleksandrov { 10382594e906SNikolay Aleksandrov return NULL; 10392594e906SNikolay Aleksandrov } 1040907b1e6eSNikolay Aleksandrov 1041907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1042907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1043907b1e6eSNikolay Aleksandrov { 1044907b1e6eSNikolay Aleksandrov return NULL; 1045907b1e6eSNikolay Aleksandrov } 1046907b1e6eSNikolay Aleksandrov 1047907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1048907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1049907b1e6eSNikolay Aleksandrov { 1050907b1e6eSNikolay Aleksandrov return NULL; 1051907b1e6eSNikolay Aleksandrov } 1052a60c0903SNikolay Aleksandrov 1053a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1054a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1055a60c0903SNikolay Aleksandrov { 1056a60c0903SNikolay Aleksandrov } 1057243a2e63SVlad Yasevich #endif 1058243a2e63SVlad Yasevich 10591a4ba64dSPablo Neira Ayuso struct nf_br_ops { 10601a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 10611a4ba64dSPablo Neira Ayuso }; 10621a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 10631a4ba64dSPablo Neira Ayuso 10641da177e4SLinus Torvalds /* br_netfilter.c */ 106534666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 106634666d46SPablo Neira Ayuso int br_nf_core_init(void); 106734666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1068348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1069c0909713SStephen Hemminger #else 107034666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 107134666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 10724adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1073c0909713SStephen Hemminger #endif 10741da177e4SLinus Torvalds 10751da177e4SLinus Torvalds /* br_stp.c */ 1076775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1077348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1078348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1079348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 10801da177e4SLinus Torvalds 1081348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1082348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1083348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1084348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 108582dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 10869e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 108714f98f25Sstephen hemminger 108814f98f25Sstephen hemminger 10891da177e4SLinus Torvalds /* br_stp_if.c */ 1090348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1091348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1092348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 1093348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1094348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1095348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1096348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1097348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1098348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1099348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1100348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 11011da177e4SLinus Torvalds 11021da177e4SLinus Torvalds /* br_stp_bpdu.c */ 11037c85fbf0SPatrick McHardy struct stp_proto; 1104348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 11057c85fbf0SPatrick McHardy struct net_device *dev); 11061da177e4SLinus Torvalds 11071da177e4SLinus Torvalds /* br_stp_timer.c */ 1108348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1109348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1110348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 11111da177e4SLinus Torvalds 11121da177e4SLinus Torvalds /* br.c */ 1113e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1114da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1115da678292SMichał Mirosław #endif 11161da177e4SLinus Torvalds 111711dc1f36SStephen Hemminger /* br_netlink.c */ 1118149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1119348662a1SJoe Perches int br_netlink_init(void); 1120348662a1SJoe Perches void br_netlink_fini(void); 112192899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 112292899063SNikolay Aleksandrov const struct net_bridge_port *port); 1123add511b3SRoopa Prabhu int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1124add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1125348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 112646c264daSNicolas Dichtel u32 filter_mask, int nlflags); 112711dc1f36SStephen Hemminger 11281da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 11291da177e4SLinus Torvalds /* br_sysfs_if.c */ 113052cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1131348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1132348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 11331da177e4SLinus Torvalds 11341da177e4SLinus Torvalds /* br_sysfs_br.c */ 1135348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1136348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 11371da177e4SLinus Torvalds 11381da177e4SLinus Torvalds #else 11391da177e4SLinus Torvalds 11400cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 11410cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 11420cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 11430cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 11441da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 11451da177e4SLinus Torvalds 11466bc506b4SIdo Schimmel /* br_switchdev.c */ 11476bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 11486bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 11496bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 11506bc506b4SIdo Schimmel struct sk_buff *skb); 11516bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 11526bc506b4SIdo Schimmel const struct sk_buff *skb); 11533922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 11543922285dSArkadi Sharshevsky unsigned long flags, 11553922285dSArkadi Sharshevsky unsigned long mask); 11566b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 11576b26b51bSArkadi Sharshevsky int type); 1158d66e4348SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags); 1159d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1160f1c2eddfSIdo Schimmel 1161f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1162f1c2eddfSIdo Schimmel { 1163f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1164f1c2eddfSIdo Schimmel } 11656bc506b4SIdo Schimmel #else 11666bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 11676bc506b4SIdo Schimmel { 11686bc506b4SIdo Schimmel return 0; 11696bc506b4SIdo Schimmel } 11706bc506b4SIdo Schimmel 11716bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 11726bc506b4SIdo Schimmel struct sk_buff *skb) 11736bc506b4SIdo Schimmel { 11746bc506b4SIdo Schimmel } 11756bc506b4SIdo Schimmel 11766bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 11776bc506b4SIdo Schimmel const struct sk_buff *skb) 11786bc506b4SIdo Schimmel { 11796bc506b4SIdo Schimmel return true; 11806bc506b4SIdo Schimmel } 11813922285dSArkadi Sharshevsky 11823922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 11833922285dSArkadi Sharshevsky unsigned long flags, 11843922285dSArkadi Sharshevsky unsigned long mask) 11853922285dSArkadi Sharshevsky { 11863922285dSArkadi Sharshevsky return 0; 11873922285dSArkadi Sharshevsky } 11886b26b51bSArkadi Sharshevsky 1189d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1190d66e4348SPetr Machata u16 vid, u16 flags) 1191d66e4348SPetr Machata { 1192d66e4348SPetr Machata return -EOPNOTSUPP; 1193d66e4348SPetr Machata } 1194d66e4348SPetr Machata 1195d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1196d66e4348SPetr Machata { 1197d66e4348SPetr Machata return -EOPNOTSUPP; 1198d66e4348SPetr Machata } 1199d66e4348SPetr Machata 12006b26b51bSArkadi Sharshevsky static inline void 12016b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 12026b26b51bSArkadi Sharshevsky { 12036b26b51bSArkadi Sharshevsky } 1204f1c2eddfSIdo Schimmel 1205f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1206f1c2eddfSIdo Schimmel { 1207f1c2eddfSIdo Schimmel } 12086bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 12096bc506b4SIdo Schimmel 1210057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1211821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1212057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1213057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1214ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1215ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1216ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 12171da177e4SLinus Torvalds #endif 1218