12874c5fdSThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-or-later */ 21da177e4SLinus Torvalds /* 31da177e4SLinus Torvalds * Linux ethernet bridge 41da177e4SLinus Torvalds * 51da177e4SLinus Torvalds * Authors: 61da177e4SLinus Torvalds * Lennert Buytenhek <buytenh@gnu.org> 71da177e4SLinus Torvalds */ 81da177e4SLinus Torvalds 91da177e4SLinus Torvalds #ifndef _BR_PRIVATE_H 101da177e4SLinus Torvalds #define _BR_PRIVATE_H 111da177e4SLinus Torvalds 121da177e4SLinus Torvalds #include <linux/netdevice.h> 131da177e4SLinus Torvalds #include <linux/if_bridge.h> 1491d2c34aSHerbert Xu #include <linux/netpoll.h> 15406818ffSEric Dumazet #include <linux/u64_stats_sync.h> 164adf0af6SSimon Wunderlich #include <net/route.h> 17efb6de9bSBernhard Thaler #include <net/ip6_fib.h> 18243a2e63SVlad Yasevich #include <linux/if_vlan.h> 192594e906SNikolay Aleksandrov #include <linux/rhashtable.h> 2025127759SReshetova, Elena #include <linux/refcount.h> 211da177e4SLinus Torvalds 221da177e4SLinus Torvalds #define BR_HASH_BITS 8 231da177e4SLinus Torvalds #define BR_HASH_SIZE (1 << BR_HASH_BITS) 241da177e4SLinus Torvalds 251da177e4SLinus Torvalds #define BR_HOLD_TIME (1*HZ) 261da177e4SLinus Torvalds 271da177e4SLinus Torvalds #define BR_PORT_BITS 10 281da177e4SLinus Torvalds #define BR_MAX_PORTS (1<<BR_PORT_BITS) 291da177e4SLinus Torvalds 30d08c6bc0SNikolay Aleksandrov #define BR_MULTICAST_DEFAULT_HASH_MAX 4096 31d08c6bc0SNikolay Aleksandrov 329cde0708SStephen Hemminger #define BR_VERSION "2.3" 339cde0708SStephen Hemminger 34515853ccSstephen hemminger /* Control of forwarding link local multicast */ 35515853ccSstephen hemminger #define BR_GROUPFWD_DEFAULT 0 36784b58a3SBernhard Thaler /* Don't allow forwarding of control protocols like STP, MAC PAUSE and LACP */ 375af48b59SNikolay Aleksandrov enum { 385af48b59SNikolay Aleksandrov BR_GROUPFWD_STP = BIT(0), 395af48b59SNikolay Aleksandrov BR_GROUPFWD_MACPAUSE = BIT(1), 405af48b59SNikolay Aleksandrov BR_GROUPFWD_LACP = BIT(2), 415af48b59SNikolay Aleksandrov }; 425af48b59SNikolay Aleksandrov 435af48b59SNikolay Aleksandrov #define BR_GROUPFWD_RESTRICTED (BR_GROUPFWD_STP | BR_GROUPFWD_MACPAUSE | \ 445af48b59SNikolay Aleksandrov BR_GROUPFWD_LACP) 45f2808d22SToshiaki Makita /* The Nearest Customer Bridge Group Address, 01-80-C2-00-00-[00,0B,0C,0D,0F] */ 46f2808d22SToshiaki Makita #define BR_GROUPFWD_8021AD 0xB801u 47515853ccSstephen hemminger 489cde0708SStephen Hemminger /* Path to usermode spanning tree program */ 499cde0708SStephen Hemminger #define BR_STP_PROG "/sbin/bridge-stp" 508cbb512eSStephen Hemminger 511da177e4SLinus Torvalds typedef struct bridge_id bridge_id; 521da177e4SLinus Torvalds typedef struct mac_addr mac_addr; 531da177e4SLinus Torvalds typedef __u16 port_id; 541da177e4SLinus Torvalds 551c1cb6d0SNikolay Aleksandrov struct bridge_id { 561da177e4SLinus Torvalds unsigned char prio[2]; 57e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 581da177e4SLinus Torvalds }; 591da177e4SLinus Torvalds 601c1cb6d0SNikolay Aleksandrov struct mac_addr { 61e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 621da177e4SLinus Torvalds }; 631da177e4SLinus Torvalds 64cc0fdd80SLinus Lüssing #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 65cc0fdd80SLinus Lüssing /* our own querier */ 6690010b36SLinus Lüssing struct bridge_mcast_own_query { 67cc0fdd80SLinus Lüssing struct timer_list timer; 68cc0fdd80SLinus Lüssing u32 startup_sent; 69cc0fdd80SLinus Lüssing }; 70cc0fdd80SLinus Lüssing 71cc0fdd80SLinus Lüssing /* other querier */ 7290010b36SLinus Lüssing struct bridge_mcast_other_query { 73cc0fdd80SLinus Lüssing struct timer_list timer; 74cc0fdd80SLinus Lüssing unsigned long delay_time; 75cc0fdd80SLinus Lüssing }; 76dc4eb53aSLinus Lüssing 77dc4eb53aSLinus Lüssing /* selected querier */ 78dc4eb53aSLinus Lüssing struct bridge_mcast_querier { 79dc4eb53aSLinus Lüssing struct br_ip addr; 802cd41431SLinus Lüssing struct net_bridge_port __rcu *port; 81dc4eb53aSLinus Lüssing }; 821080ab95SNikolay Aleksandrov 831080ab95SNikolay Aleksandrov /* IGMP/MLD statistics */ 841080ab95SNikolay Aleksandrov struct bridge_mcast_stats { 851080ab95SNikolay Aleksandrov struct br_mcast_stats mstats; 861080ab95SNikolay Aleksandrov struct u64_stats_sync syncp; 871080ab95SNikolay Aleksandrov }; 88cc0fdd80SLinus Lüssing #endif 89cc0fdd80SLinus Lüssing 906dada9b1SNikolay Aleksandrov struct br_vlan_stats { 916dada9b1SNikolay Aleksandrov u64 rx_bytes; 926dada9b1SNikolay Aleksandrov u64 rx_packets; 936dada9b1SNikolay Aleksandrov u64 tx_bytes; 946dada9b1SNikolay Aleksandrov u64 tx_packets; 956dada9b1SNikolay Aleksandrov struct u64_stats_sync syncp; 966dada9b1SNikolay Aleksandrov }; 976dada9b1SNikolay Aleksandrov 98efa5356bSRoopa Prabhu struct br_tunnel_info { 99efa5356bSRoopa Prabhu __be64 tunnel_id; 100efa5356bSRoopa Prabhu struct metadata_dst *tunnel_dst; 101efa5356bSRoopa Prabhu }; 102efa5356bSRoopa Prabhu 1039d332e69SNikolay Aleksandrov /* private vlan flags */ 1049d332e69SNikolay Aleksandrov enum { 1059d332e69SNikolay Aleksandrov BR_VLFLAG_PER_PORT_STATS = BIT(0), 10627973793SIdo Schimmel BR_VLFLAG_ADDED_BY_SWITCHDEV = BIT(1), 1079d332e69SNikolay Aleksandrov }; 1089d332e69SNikolay Aleksandrov 1092594e906SNikolay Aleksandrov /** 1102594e906SNikolay Aleksandrov * struct net_bridge_vlan - per-vlan entry 1112594e906SNikolay Aleksandrov * 1122594e906SNikolay Aleksandrov * @vnode: rhashtable member 1132594e906SNikolay Aleksandrov * @vid: VLAN id 1142594e906SNikolay Aleksandrov * @flags: bridge vlan flags 1159d332e69SNikolay Aleksandrov * @priv_flags: private (in-kernel) bridge vlan flags 1166dada9b1SNikolay Aleksandrov * @stats: per-cpu VLAN statistics 1172594e906SNikolay Aleksandrov * @br: if MASTER flag set, this points to a bridge struct 1182594e906SNikolay Aleksandrov * @port: if MASTER flag unset, this points to a port struct 1192594e906SNikolay Aleksandrov * @refcnt: if MASTER flag set, this is bumped for each port referencing it 1202594e906SNikolay Aleksandrov * @brvlan: if MASTER flag unset, this points to the global per-VLAN context 1212594e906SNikolay Aleksandrov * for this VLAN entry 1222594e906SNikolay Aleksandrov * @vlist: sorted list of VLAN entries 1232594e906SNikolay Aleksandrov * @rcu: used for entry destruction 1242594e906SNikolay Aleksandrov * 1252594e906SNikolay Aleksandrov * This structure is shared between the global per-VLAN entries contained in 1262594e906SNikolay Aleksandrov * the bridge rhashtable and the local per-port per-VLAN entries contained in 1272594e906SNikolay Aleksandrov * the port's rhashtable. The union entries should be interpreted depending on 1282594e906SNikolay Aleksandrov * the entry flags that are set. 1292594e906SNikolay Aleksandrov */ 1302594e906SNikolay Aleksandrov struct net_bridge_vlan { 1312594e906SNikolay Aleksandrov struct rhash_head vnode; 132efa5356bSRoopa Prabhu struct rhash_head tnode; 1332594e906SNikolay Aleksandrov u16 vid; 1342594e906SNikolay Aleksandrov u16 flags; 1359d332e69SNikolay Aleksandrov u16 priv_flags; 1366dada9b1SNikolay Aleksandrov struct br_vlan_stats __percpu *stats; 137243a2e63SVlad Yasevich union { 138243a2e63SVlad Yasevich struct net_bridge *br; 1392594e906SNikolay Aleksandrov struct net_bridge_port *port; 1402594e906SNikolay Aleksandrov }; 1412594e906SNikolay Aleksandrov union { 14225127759SReshetova, Elena refcount_t refcnt; 1432594e906SNikolay Aleksandrov struct net_bridge_vlan *brvlan; 1442594e906SNikolay Aleksandrov }; 145efa5356bSRoopa Prabhu 146efa5356bSRoopa Prabhu struct br_tunnel_info tinfo; 147efa5356bSRoopa Prabhu 1482594e906SNikolay Aleksandrov struct list_head vlist; 1492594e906SNikolay Aleksandrov 150243a2e63SVlad Yasevich struct rcu_head rcu; 1512594e906SNikolay Aleksandrov }; 1522594e906SNikolay Aleksandrov 1532594e906SNikolay Aleksandrov /** 1542594e906SNikolay Aleksandrov * struct net_bridge_vlan_group 1552594e906SNikolay Aleksandrov * 1562594e906SNikolay Aleksandrov * @vlan_hash: VLAN entry rhashtable 1572594e906SNikolay Aleksandrov * @vlan_list: sorted VLAN entry list 1582594e906SNikolay Aleksandrov * @num_vlans: number of total VLAN entries 15977751ee8SNikolay Aleksandrov * @pvid: PVID VLAN id 1602594e906SNikolay Aleksandrov * 1612594e906SNikolay Aleksandrov * IMPORTANT: Be careful when checking if there're VLAN entries using list 1622594e906SNikolay Aleksandrov * primitives because the bridge can have entries in its list which 1632594e906SNikolay Aleksandrov * are just for global context but not for filtering, i.e. they have 1642594e906SNikolay Aleksandrov * the master flag set but not the brentry flag. If you have to check 1652594e906SNikolay Aleksandrov * if there're "real" entries in the bridge please test @num_vlans 1662594e906SNikolay Aleksandrov */ 1672594e906SNikolay Aleksandrov struct net_bridge_vlan_group { 1682594e906SNikolay Aleksandrov struct rhashtable vlan_hash; 169efa5356bSRoopa Prabhu struct rhashtable tunnel_hash; 1702594e906SNikolay Aleksandrov struct list_head vlan_list; 1716cbdceebSVlad Yasevich u16 num_vlans; 17277751ee8SNikolay Aleksandrov u16 pvid; 173243a2e63SVlad Yasevich }; 174243a2e63SVlad Yasevich 1756869c3b0SNikolay Aleksandrov /* bridge fdb flags */ 1766869c3b0SNikolay Aleksandrov enum { 1776869c3b0SNikolay Aleksandrov BR_FDB_LOCAL, 17829e63fffSNikolay Aleksandrov BR_FDB_STATIC, 179e0458d9aSNikolay Aleksandrov BR_FDB_STICKY, 180ac3ca6afSNikolay Aleksandrov BR_FDB_ADDED_BY_USER, 181b5cd9f7cSNikolay Aleksandrov BR_FDB_ADDED_BY_EXT_LEARN, 182d38c6e3dSNikolay Aleksandrov BR_FDB_OFFLOADED, 1836869c3b0SNikolay Aleksandrov }; 1846869c3b0SNikolay Aleksandrov 185eb793583SNikolay Aleksandrov struct net_bridge_fdb_key { 186eb793583SNikolay Aleksandrov mac_addr addr; 187eb793583SNikolay Aleksandrov u16 vlan_id; 188eb793583SNikolay Aleksandrov }; 189eb793583SNikolay Aleksandrov 1901214628cSNikolay Aleksandrov struct net_bridge_fdb_entry { 191eb793583SNikolay Aleksandrov struct rhash_head rhnode; 1921da177e4SLinus Torvalds struct net_bridge_port *dst; 1931da177e4SLinus Torvalds 194eb793583SNikolay Aleksandrov struct net_bridge_fdb_key key; 195eb793583SNikolay Aleksandrov struct hlist_node fdb_node; 1966869c3b0SNikolay Aleksandrov unsigned long flags; 1971214628cSNikolay Aleksandrov 1981214628cSNikolay Aleksandrov /* write-heavy members should not affect lookups */ 1991214628cSNikolay Aleksandrov unsigned long updated ____cacheline_aligned_in_smp; 2001214628cSNikolay Aleksandrov unsigned long used; 2011214628cSNikolay Aleksandrov 202b22fbf22SNikolay Aleksandrov struct rcu_head rcu; 2031da177e4SLinus Torvalds }; 2041da177e4SLinus Torvalds 2059d06b6d8SElad Raz #define MDB_PG_FLAGS_PERMANENT BIT(0) 2069d06b6d8SElad Raz #define MDB_PG_FLAGS_OFFLOAD BIT(1) 2073247b272SNikolay Aleksandrov #define MDB_PG_FLAGS_FAST_LEAVE BIT(2) 2089d06b6d8SElad Raz 209eb1d1641SHerbert Xu struct net_bridge_port_group { 210eb1d1641SHerbert Xu struct net_bridge_port *port; 211e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 212eb1d1641SHerbert Xu struct hlist_node mglist; 213eb1d1641SHerbert Xu struct rcu_head rcu; 214eb1d1641SHerbert Xu struct timer_list timer; 2158ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 2169d06b6d8SElad Raz unsigned char flags; 2176db6f0eaSFelix Fietkau unsigned char eth_addr[ETH_ALEN]; 218eb1d1641SHerbert Xu }; 219eb1d1641SHerbert Xu 2201c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_entry { 22119e3a9c9SNikolay Aleksandrov struct rhash_head rhnode; 222eb1d1641SHerbert Xu struct net_bridge *br; 223e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 224eb1d1641SHerbert Xu struct rcu_head rcu; 225eb1d1641SHerbert Xu struct timer_list timer; 2268ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 227ff0fd34eSAndrew Lunn bool host_joined; 22819e3a9c9SNikolay Aleksandrov struct hlist_node mdb_node; 229eb1d1641SHerbert Xu }; 230eb1d1641SHerbert Xu 2311f90c7f3SNikolay Aleksandrov struct net_bridge_port { 2321da177e4SLinus Torvalds struct net_bridge *br; 2331da177e4SLinus Torvalds struct net_device *dev; 2341da177e4SLinus Torvalds struct list_head list; 2351da177e4SLinus Torvalds 2361f90c7f3SNikolay Aleksandrov unsigned long flags; 2371f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 2381f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 2391f90c7f3SNikolay Aleksandrov #endif 2402756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 2411f90c7f3SNikolay Aleksandrov 2421da177e4SLinus Torvalds /* STP */ 2431da177e4SLinus Torvalds u8 priority; 2441da177e4SLinus Torvalds u8 state; 2451da177e4SLinus Torvalds u16 port_no; 2461da177e4SLinus Torvalds unsigned char topology_change_ack; 2471da177e4SLinus Torvalds unsigned char config_pending; 2481da177e4SLinus Torvalds port_id port_id; 2491da177e4SLinus Torvalds port_id designated_port; 2501da177e4SLinus Torvalds bridge_id designated_root; 2511da177e4SLinus Torvalds bridge_id designated_bridge; 2521da177e4SLinus Torvalds u32 path_cost; 2531da177e4SLinus Torvalds u32 designated_cost; 2540c03150eSstephen hemminger unsigned long designated_age; 2551da177e4SLinus Torvalds 2561da177e4SLinus Torvalds struct timer_list forward_delay_timer; 2571da177e4SLinus Torvalds struct timer_list hold_timer; 2581da177e4SLinus Torvalds struct timer_list message_age_timer; 2591da177e4SLinus Torvalds struct kobject kobj; 2601da177e4SLinus Torvalds struct rcu_head rcu; 2613982d3d2SFischer, Anna 262eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 26390010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 264cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 26590010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 266cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 267eb1d1641SHerbert Xu unsigned char multicast_router; 2681080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 269eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 270eb1d1641SHerbert Xu struct hlist_head mglist; 271eb1d1641SHerbert Xu struct hlist_node rlist; 272eb1d1641SHerbert Xu #endif 273e0f43752SSimon Arlott 274e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 275e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 276e0f43752SSimon Arlott #endif 27791d2c34aSHerbert Xu 27891d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 27991d2c34aSHerbert Xu struct netpoll *np; 28091d2c34aSHerbert Xu #endif 2816bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 2826bc506b4SIdo Schimmel int offload_fwd_mark; 2836bc506b4SIdo Schimmel #endif 2845af48b59SNikolay Aleksandrov u16 group_fwd_mask; 2852756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 286de179966SVivien Didelot 287de179966SVivien Didelot struct bridge_stp_xstats stp_xstats; 2881da177e4SLinus Torvalds }; 2891da177e4SLinus Torvalds 290705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 291705e0deaSTyler Hicks 292e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 293f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 294e028e4b8SVlad Yasevich 295b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 296b5ed54e9Sstephen hemminger { 297716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 298b5ed54e9Sstephen hemminger } 299b5ed54e9Sstephen hemminger 3001fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 301b5ed54e9Sstephen hemminger { 30235f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 303ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 304b5ed54e9Sstephen hemminger } 305b5ed54e9Sstephen hemminger 3060baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 3070baa10ffSArkadi Sharshevsky { 30835f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 3090baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3100baa10ffSArkadi Sharshevsky } 3110baa10ffSArkadi Sharshevsky 312ae75767eSNikolay Aleksandrov enum net_bridge_opts { 313ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 314ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 3158df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 3168df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 3178df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 318be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 31913cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 320675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 321675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 322675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 323675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 324c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 3253341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 3269163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 32770e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 3289c0ec2e7SMike Manning BROPT_VLAN_BRIDGE_BINDING, 329ae75767eSNikolay Aleksandrov }; 330ae75767eSNikolay Aleksandrov 3311f90c7f3SNikolay Aleksandrov struct net_bridge { 3321da177e4SLinus Torvalds spinlock_t lock; 3331f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 3341da177e4SLinus Torvalds struct list_head port_list; 3351da177e4SLinus Torvalds struct net_device *dev; 3368f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 337ae75767eSNikolay Aleksandrov unsigned long options; 3381f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3391f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3401f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3411f90c7f3SNikolay Aleksandrov u16 default_pvid; 3421f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3431f90c7f3SNikolay Aleksandrov #endif 3441f90c7f3SNikolay Aleksandrov 345eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 34634666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 347efb6de9bSBernhard Thaler union { 3484adf0af6SSimon Wunderlich struct rtable fake_rtable; 349efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 350efb6de9bSBernhard Thaler }; 3514adf0af6SSimon Wunderlich #endif 352515853ccSstephen hemminger u16 group_fwd_mask; 353f2808d22SToshiaki Makita u16 group_fwd_mask_required; 354515853ccSstephen hemminger 3551da177e4SLinus Torvalds /* STP */ 3561da177e4SLinus Torvalds bridge_id designated_root; 3571da177e4SLinus Torvalds bridge_id bridge_id; 3581f90c7f3SNikolay Aleksandrov unsigned char topology_change; 3591f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 3601f90c7f3SNikolay Aleksandrov u16 root_port; 3611da177e4SLinus Torvalds unsigned long max_age; 3621da177e4SLinus Torvalds unsigned long hello_time; 3631da177e4SLinus Torvalds unsigned long forward_delay; 3641da177e4SLinus Torvalds unsigned long ageing_time; 36534d8acd8SVivien Didelot unsigned long bridge_max_age; 3661da177e4SLinus Torvalds unsigned long bridge_hello_time; 3671da177e4SLinus Torvalds unsigned long bridge_forward_delay; 36834d8acd8SVivien Didelot unsigned long bridge_ageing_time; 36935750b0bSNikolay Aleksandrov u32 root_path_cost; 3701da177e4SLinus Torvalds 371fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 3729cde0708SStephen Hemminger 3739cde0708SStephen Hemminger enum { 3749cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 3759cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 3769cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 3779cde0708SStephen Hemminger } stp_enabled; 3789cde0708SStephen Hemminger 379eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 380eb1d1641SHerbert Xu 381eb1d1641SHerbert Xu u32 hash_max; 382eb1d1641SHerbert Xu 383eb1d1641SHerbert Xu u32 multicast_last_member_count; 384eb1d1641SHerbert Xu u32 multicast_startup_query_count; 385eb1d1641SHerbert Xu 3865e923585SNikolay Aleksandrov u8 multicast_igmp_version; 387675779adSNikolay Aleksandrov u8 multicast_router; 388675779adSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 389675779adSNikolay Aleksandrov u8 multicast_mld_version; 390675779adSNikolay Aleksandrov #endif 39135750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 392eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 393eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 394eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 395eb1d1641SHerbert Xu unsigned long multicast_query_interval; 396eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 397eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 398eb1d1641SHerbert Xu 39919e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 40019e3a9c9SNikolay Aleksandrov 40119e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 402eb1d1641SHerbert Xu struct hlist_head router_list; 403eb1d1641SHerbert Xu 404eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 40590010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 40690010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 407dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 4081080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 409cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 41090010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 41190010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 412dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 413cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 414eb1d1641SHerbert Xu #endif 415eb1d1641SHerbert Xu 4161da177e4SLinus Torvalds struct timer_list hello_timer; 4171da177e4SLinus Torvalds struct timer_list tcn_timer; 4181da177e4SLinus Torvalds struct timer_list topology_change_timer; 419f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 42043b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 421e028e4b8SVlad Yasevich u32 auto_cnt; 4226bc506b4SIdo Schimmel 4236bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4246bc506b4SIdo Schimmel int offload_fwd_mark; 4256bc506b4SIdo Schimmel #endif 426eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4271da177e4SLinus Torvalds }; 4281da177e4SLinus Torvalds 42968b7c895SHerbert Xu struct br_input_skb_cb { 43068b7c895SHerbert Xu struct net_device *brdev; 43193fdd47eSHerbert Xu 4323c171f49SPablo Neira Ayuso u16 frag_max_size; 43332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 434f12064d1SFlorian Westphal u8 igmp; 435f12064d1SFlorian Westphal u8 mrouters_only:1; 43632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 437f12064d1SFlorian Westphal u8 proxyarp_replied:1; 438f12064d1SFlorian Westphal u8 src_port_isolated:1; 43920adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 440f12064d1SFlorian Westphal u8 vlan_filtered:1; 44120adfa1aSVlad Yasevich #endif 442223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 443223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 444223fd0adSFlorian Westphal #endif 4456bc506b4SIdo Schimmel 4466bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4476bc506b4SIdo Schimmel int offload_fwd_mark; 4486bc506b4SIdo Schimmel #endif 44968b7c895SHerbert Xu }; 45068b7c895SHerbert Xu 45168b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 45268b7c895SHerbert Xu 45332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 45432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 45532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 45632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 45732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 45832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 45928a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 46028a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 46128a16c97Sstephen hemminger 46228a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 46328a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 46428a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 46528a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 46628a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 46728a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 46828a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 46928a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 47028a16c97Sstephen hemminger 47128a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 47228a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 47328a16c97Sstephen hemminger 4741da177e4SLinus Torvalds /* called under bridge lock */ 4751da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 4761da177e4SLinus Torvalds { 4771da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 4781da177e4SLinus Torvalds } 4791da177e4SLinus Torvalds 4802594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 4812594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 4822594e906SNikolay Aleksandrov { 4832594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 4842594e906SNikolay Aleksandrov } 4852594e906SNikolay Aleksandrov 4862594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 4872594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 4882594e906SNikolay Aleksandrov { 4892594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 4902594e906SNikolay Aleksandrov } 4912594e906SNikolay Aleksandrov 4926be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 4932594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 4942594e906SNikolay Aleksandrov { 4952594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 4962594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 4972594e906SNikolay Aleksandrov return true; 4982594e906SNikolay Aleksandrov else 4992594e906SNikolay Aleksandrov return false; 5002594e906SNikolay Aleksandrov } 5012594e906SNikolay Aleksandrov 5022594e906SNikolay Aleksandrov return true; 5032594e906SNikolay Aleksandrov } 5042594e906SNikolay Aleksandrov 5055d1fcaf3SNikolay Aleksandrov static inline bool nbp_state_should_learn(const struct net_bridge_port *p) 5065d1fcaf3SNikolay Aleksandrov { 5075d1fcaf3SNikolay Aleksandrov return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; 5085d1fcaf3SNikolay Aleksandrov } 5095d1fcaf3SNikolay Aleksandrov 5108f4cc940SNikolay Aleksandrov static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack) 5115a46facbSNikolay Aleksandrov { 5128f4cc940SNikolay Aleksandrov bool ret = vid > 0 && vid < VLAN_VID_MASK; 5138f4cc940SNikolay Aleksandrov 5148f4cc940SNikolay Aleksandrov if (!ret) 5158f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid"); 5168f4cc940SNikolay Aleksandrov 5178f4cc940SNikolay Aleksandrov return ret; 5185a46facbSNikolay Aleksandrov } 5195a46facbSNikolay Aleksandrov 5205a46facbSNikolay Aleksandrov static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, 5218f4cc940SNikolay Aleksandrov const struct bridge_vlan_info *last, 5228f4cc940SNikolay Aleksandrov struct netlink_ext_ack *extack) 5235a46facbSNikolay Aleksandrov { 5245a46facbSNikolay Aleksandrov /* pvid flag is not allowed in ranges */ 5258f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_PVID) { 5268f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range"); 5275a46facbSNikolay Aleksandrov return false; 5288f4cc940SNikolay Aleksandrov } 5295a46facbSNikolay Aleksandrov 5305a46facbSNikolay Aleksandrov /* when cur is the range end, check if: 5315a46facbSNikolay Aleksandrov * - it has range start flag 5325a46facbSNikolay Aleksandrov * - range ids are invalid (end is equal to or before start) 5335a46facbSNikolay Aleksandrov */ 5345a46facbSNikolay Aleksandrov if (last) { 5358f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { 5368f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one"); 5375a46facbSNikolay Aleksandrov return false; 5388f4cc940SNikolay Aleksandrov } else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) { 5398f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing"); 5408f4cc940SNikolay Aleksandrov return false; 5418f4cc940SNikolay Aleksandrov } else if (cur->vid <= last->vid) { 5428f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); 5438f4cc940SNikolay Aleksandrov return false; 5448f4cc940SNikolay Aleksandrov } 5458f4cc940SNikolay Aleksandrov } 5468f4cc940SNikolay Aleksandrov 5478f4cc940SNikolay Aleksandrov /* check for required range flags */ 5488f4cc940SNikolay Aleksandrov if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 5498f4cc940SNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END))) { 5508f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing"); 5515a46facbSNikolay Aleksandrov return false; 5525a46facbSNikolay Aleksandrov } 5535a46facbSNikolay Aleksandrov 5545a46facbSNikolay Aleksandrov return true; 5555a46facbSNikolay Aleksandrov } 5565a46facbSNikolay Aleksandrov 557ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 558ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 559ae75767eSNikolay Aleksandrov { 560ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 561ae75767eSNikolay Aleksandrov } 562ae75767eSNikolay Aleksandrov 563a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 564a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 565a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 566a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 567a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 568a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 569a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 570a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 571ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 572ae75767eSNikolay Aleksandrov 5731da177e4SLinus Torvalds /* br_device.c */ 574348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 575348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 576348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 577cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 57891d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 57991d2c34aSHerbert Xu struct sk_buff *skb) 58091d2c34aSHerbert Xu { 58191d2c34aSHerbert Xu struct netpoll *np = p->np; 58291d2c34aSHerbert Xu 58391d2c34aSHerbert Xu if (np) 58491d2c34aSHerbert Xu netpoll_send_skb(np, skb); 58591d2c34aSHerbert Xu } 58691d2c34aSHerbert Xu 587a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 588348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 58991d2c34aSHerbert Xu #else 5909f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 59191d2c34aSHerbert Xu struct sk_buff *skb) 59291d2c34aSHerbert Xu { 59391d2c34aSHerbert Xu } 59491d2c34aSHerbert Xu 595a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 59691d2c34aSHerbert Xu { 59791d2c34aSHerbert Xu return 0; 59891d2c34aSHerbert Xu } 59991d2c34aSHerbert Xu 60091d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 60191d2c34aSHerbert Xu { 60291d2c34aSHerbert Xu } 603cfb478daSstephen hemminger #endif 6041da177e4SLinus Torvalds 6051da177e4SLinus Torvalds /* br_fdb.c */ 606348662a1SJoe Perches int br_fdb_init(void); 607348662a1SJoe Perches void br_fdb_fini(void); 608eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 609eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 610348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 611424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 612424bb9c9SToshiaki Makita const struct net_bridge_port *p, 613424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 614348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 615348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 616f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 617348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 6181ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 619bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 620bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 621bfd0aeacSNikolay Aleksandrov __u16 vid); 622348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 623348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 624348662a1SJoe Perches unsigned long off); 625348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 626348662a1SJoe Perches const unsigned char *addr, u16 vid); 627348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 628be0c5677SNikolay Aleksandrov const unsigned char *addr, u16 vid, unsigned long flags); 62977162022SJohn Fastabend 630348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 631f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 632348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 63387b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 63487b0984eSPetr Machata struct netlink_ext_ack *extack); 635348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 636d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 63747674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 63847674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 63947674562SRoopa Prabhu struct netlink_ext_ack *extack); 6408db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 6418db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 6423aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 643161d82deSPetr Machata const unsigned char *addr, u16 vid, 644161d82deSPetr Machata bool swdev_notify); 6453aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 646161d82deSPetr Machata const unsigned char *addr, u16 vid, 647161d82deSPetr Machata bool swdev_notify); 6489fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 649e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 6501da177e4SLinus Torvalds 6511da177e4SLinus Torvalds /* br_forward.c */ 6528addd5e7SNikolay Aleksandrov enum br_pkt_type { 6538addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 6548addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 6558addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 6568addd5e7SNikolay Aleksandrov }; 6570c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 658b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 65937b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 6600c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 66137b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 6628addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 6631da177e4SLinus Torvalds 6647d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 6657d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 6667d850abdSNikolay Aleksandrov const struct sk_buff *skb) 6677d850abdSNikolay Aleksandrov { 6687d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 6697d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 6707d850abdSNikolay Aleksandrov } 6717d850abdSNikolay Aleksandrov 6721da177e4SLinus Torvalds /* br_if.c */ 673faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 674348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 675348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 676ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 677ca752be0SDavid Ahern struct netlink_ext_ack *extack); 678348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 679804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 680348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 681c8f44affSMichał Mirosław netdev_features_t features); 682e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 6832796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 6842756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 6851da177e4SLinus Torvalds 6861da177e4SLinus Torvalds /* br_input.c */ 6870c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 688348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 6891da177e4SLinus Torvalds 690859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 691859828c0SJiri Pirko { 692859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 693859828c0SJiri Pirko } 694859828c0SJiri Pirko 6954d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 6964d4fd361SPetr Machata { 6974d4fd361SPetr Machata return rcu_dereference_rtnl(dev->rx_handler) == br_handle_frame; 6984d4fd361SPetr Machata } 6994d4fd361SPetr Machata 700859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 701859828c0SJiri Pirko { 702859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 703859828c0SJiri Pirko } 704859828c0SJiri Pirko 7054d4fd361SPetr Machata static inline struct net_bridge_port * 7064d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 7074d4fd361SPetr Machata { 7084d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 7094d4fd361SPetr Machata } 7104d4fd361SPetr Machata 7111da177e4SLinus Torvalds /* br_ioctl.c */ 712348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 713348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 714348662a1SJoe Perches void __user *arg); 7151da177e4SLinus Torvalds 716eb1d1641SHerbert Xu /* br_multicast.c */ 717eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 718348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 719fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 720348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 721eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 7221080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 723348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 724348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 725348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 726348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 727348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 728348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 729e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 73037b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 73137b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 732348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 733348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 734348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 735348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 736348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 7375e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 738aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 739aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 740aa2ae3e7SNikolay Aleksandrov #endif 741348662a1SJoe Perches struct net_bridge_mdb_entry * 74219e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 743348662a1SJoe Perches struct net_bridge_mdb_entry * 74419e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 745348662a1SJoe Perches struct net_bridge_port_group * 746348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 747762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 7486db6f0eaSFelix Fietkau unsigned char flags, const unsigned char *src); 74919e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 75019e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 75145ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 75245ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 753949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 754949f1e39SSatish Ashok int type); 7551080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 756a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 7571080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 758b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 7591080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 7601080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 7611080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 76219e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 76319e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 7641bc844eeSNikolay Aleksandrov void br_multicast_host_join(struct net_bridge_mdb_entry *mp, bool notify); 7651bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 76685b35269SSridhar Samudrala 767cfd56754SCong Wang #define mlock_dereference(X, br) \ 768cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 769cfd56754SCong Wang 77085b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 77185b35269SSridhar Samudrala { 77285b35269SSridhar Samudrala return br->multicast_router == 2 || 77385b35269SSridhar Samudrala (br->multicast_router == 1 && 77485b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 77585b35269SSridhar Samudrala } 776b00589afSLinus Lüssing 777cc0fdd80SLinus Lüssing static inline bool 778cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 7790888d5f3Sdaniel struct bridge_mcast_other_query *querier, 7800888d5f3Sdaniel const bool is_ipv6) 781b00589afSLinus Lüssing { 7820888d5f3Sdaniel bool own_querier_enabled; 7830888d5f3Sdaniel 784675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 785675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 7860888d5f3Sdaniel own_querier_enabled = false; 7870888d5f3Sdaniel else 7880888d5f3Sdaniel own_querier_enabled = true; 7890888d5f3Sdaniel } else { 7900888d5f3Sdaniel own_querier_enabled = false; 7910888d5f3Sdaniel } 7920888d5f3Sdaniel 793cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 7940888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 795cc0fdd80SLinus Lüssing } 796cc0fdd80SLinus Lüssing 797cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 798cc0fdd80SLinus Lüssing struct ethhdr *eth) 799cc0fdd80SLinus Lüssing { 800cc0fdd80SLinus Lüssing switch (eth->h_proto) { 801cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 8020888d5f3Sdaniel return __br_multicast_querier_exists(br, 8030888d5f3Sdaniel &br->ip4_other_query, false); 804cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 805cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 8060888d5f3Sdaniel return __br_multicast_querier_exists(br, 8070888d5f3Sdaniel &br->ip6_other_query, true); 808cc0fdd80SLinus Lüssing #endif 809cc0fdd80SLinus Lüssing default: 810cc0fdd80SLinus Lüssing return false; 811cc0fdd80SLinus Lüssing } 812b00589afSLinus Lüssing } 8131080ab95SNikolay Aleksandrov 8141080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 8151080ab95SNikolay Aleksandrov { 8161080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 8171080ab95SNikolay Aleksandrov } 818eb1d1641SHerbert Xu #else 819eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 820eb1d1641SHerbert Xu struct net_bridge_port *port, 82106499098SVlad Yasevich struct sk_buff *skb, 82206499098SVlad Yasevich u16 vid) 823eb1d1641SHerbert Xu { 824eb1d1641SHerbert Xu return 0; 825eb1d1641SHerbert Xu } 826eb1d1641SHerbert Xu 827eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 828fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 829eb1d1641SHerbert Xu { 830eb1d1641SHerbert Xu return NULL; 831eb1d1641SHerbert Xu } 832eb1d1641SHerbert Xu 8331080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 834eb1d1641SHerbert Xu { 8351080ab95SNikolay Aleksandrov return 0; 836eb1d1641SHerbert Xu } 837eb1d1641SHerbert Xu 838eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 839eb1d1641SHerbert Xu { 840eb1d1641SHerbert Xu } 841eb1d1641SHerbert Xu 842eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 843eb1d1641SHerbert Xu { 844eb1d1641SHerbert Xu } 845eb1d1641SHerbert Xu 846eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 847eb1d1641SHerbert Xu { 848eb1d1641SHerbert Xu } 849eb1d1641SHerbert Xu 850eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 851eb1d1641SHerbert Xu { 852eb1d1641SHerbert Xu } 853eb1d1641SHerbert Xu 854eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 855eb1d1641SHerbert Xu { 856eb1d1641SHerbert Xu } 857eb1d1641SHerbert Xu 858eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 859eb1d1641SHerbert Xu { 860eb1d1641SHerbert Xu } 8615cb5e947SHerbert Xu 862a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 863a7ce45a7SNikolay Aleksandrov { 864a7ce45a7SNikolay Aleksandrov } 865a7ce45a7SNikolay Aleksandrov 86637b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 86737b090e6SNikolay Aleksandrov struct sk_buff *skb, 86837b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 8695cb5e947SHerbert Xu { 8705cb5e947SHerbert Xu } 8715cb5e947SHerbert Xu 872eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 873eb1d1641SHerbert Xu { 87403aaa9e2SGustavo A. R. Silva return false; 875eb1d1641SHerbert Xu } 87637b090e6SNikolay Aleksandrov 877cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 878cc0fdd80SLinus Lüssing struct ethhdr *eth) 879b00589afSLinus Lüssing { 880b00589afSLinus Lüssing return false; 881b00589afSLinus Lüssing } 88237b090e6SNikolay Aleksandrov 883fdb184d1SRami Rosen static inline void br_mdb_init(void) 884fdb184d1SRami Rosen { 885fdb184d1SRami Rosen } 88637b090e6SNikolay Aleksandrov 887fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 888fdb184d1SRami Rosen { 889fdb184d1SRami Rosen } 8901080ab95SNikolay Aleksandrov 89119e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 89219e3a9c9SNikolay Aleksandrov { 89319e3a9c9SNikolay Aleksandrov return 0; 89419e3a9c9SNikolay Aleksandrov } 89519e3a9c9SNikolay Aleksandrov 89619e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 89719e3a9c9SNikolay Aleksandrov { 89819e3a9c9SNikolay Aleksandrov } 89919e3a9c9SNikolay Aleksandrov 9001080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 9011080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 902a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 903a65056ecSNikolay Aleksandrov u8 type, u8 dir) 9041080ab95SNikolay Aleksandrov { 9051080ab95SNikolay Aleksandrov } 9061080ab95SNikolay Aleksandrov 9071080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 9081080ab95SNikolay Aleksandrov { 9091080ab95SNikolay Aleksandrov return 0; 9101080ab95SNikolay Aleksandrov } 9111080ab95SNikolay Aleksandrov 912b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 913b6fe0440SIdo Schimmel { 914b6fe0440SIdo Schimmel } 915b6fe0440SIdo Schimmel 9161080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 9171080ab95SNikolay Aleksandrov { 9181080ab95SNikolay Aleksandrov return 0; 9191080ab95SNikolay Aleksandrov } 92085b35269SSridhar Samudrala #endif 921eb1d1641SHerbert Xu 922243a2e63SVlad Yasevich /* br_vlan.c */ 923243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 92477751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 92577751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 9262594e906SNikolay Aleksandrov u16 *vid); 92777751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 92885f46c6bSVlad Yasevich const struct sk_buff *skb); 929e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 930348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 93111538d03SRoopa Prabhu const struct net_bridge_port *port, 9322594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 93378851988SVlad Yasevich struct sk_buff *skb); 934f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 935169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 936348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 937348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 9382594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 939204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 940a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 941348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 942d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 943204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 9446dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 9459163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 9465be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 94796a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 948169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 949169327d5SPetr Machata struct netlink_ext_ack *extack); 950f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 951169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 952348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 953348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 954169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 9552594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 956a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 957a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 9589c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 959091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 9609c0ec2e7SMike Manning void *ptr); 9618dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void); 9628dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void); 963cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 964cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 965cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 966cf5bddb9SNikolay Aleksandrov int cmd); 967a37b85c9SVlad Yasevich 9682594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 969a37b85c9SVlad Yasevich const struct net_bridge *br) 970a37b85c9SVlad Yasevich { 971907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 972a37b85c9SVlad Yasevich } 973a37b85c9SVlad Yasevich 9742594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 975a37b85c9SVlad Yasevich const struct net_bridge_port *p) 976a37b85c9SVlad Yasevich { 977907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 978907b1e6eSNikolay Aleksandrov } 979907b1e6eSNikolay Aleksandrov 980907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 981907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 982907b1e6eSNikolay Aleksandrov { 983907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 984907b1e6eSNikolay Aleksandrov } 985907b1e6eSNikolay Aleksandrov 986907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 987907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 988907b1e6eSNikolay Aleksandrov { 989907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 990a37b85c9SVlad Yasevich } 991a37b85c9SVlad Yasevich 992a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 993a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 994a37b85c9SVlad Yasevich */ 995a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 996a37b85c9SVlad Yasevich { 997a37b85c9SVlad Yasevich int err = 0; 998a37b85c9SVlad Yasevich 9992594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 10005978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 10012594e906SNikolay Aleksandrov } else { 1002a37b85c9SVlad Yasevich *vid = 0; 1003a37b85c9SVlad Yasevich err = -EINVAL; 1004a37b85c9SVlad Yasevich } 1005a37b85c9SVlad Yasevich 1006a37b85c9SVlad Yasevich return err; 1007a37b85c9SVlad Yasevich } 100878851988SVlad Yasevich 100977751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 101078851988SVlad Yasevich { 101177751ee8SNikolay Aleksandrov if (!vg) 10125be5a2dfSVlad Yasevich return 0; 10135be5a2dfSVlad Yasevich 101478851988SVlad Yasevich smp_rmb(); 101577751ee8SNikolay Aleksandrov return vg->pvid; 101678851988SVlad Yasevich } 101778851988SVlad Yasevich 10188dcea187SNikolay Aleksandrov static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) 10198dcea187SNikolay Aleksandrov { 10208dcea187SNikolay Aleksandrov return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags; 10218dcea187SNikolay Aleksandrov } 1022243a2e63SVlad Yasevich #else 102377751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 102477751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 10252594e906SNikolay Aleksandrov struct sk_buff *skb, 10262594e906SNikolay Aleksandrov u16 *vid) 10272594e906SNikolay Aleksandrov { 10282594e906SNikolay Aleksandrov return true; 10292594e906SNikolay Aleksandrov } 10302594e906SNikolay Aleksandrov 10312594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 103285f46c6bSVlad Yasevich const struct sk_buff *skb) 103385f46c6bSVlad Yasevich { 103485f46c6bSVlad Yasevich return true; 103585f46c6bSVlad Yasevich } 103685f46c6bSVlad Yasevich 1037e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 1038e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 1039e0d7968aSToshiaki Makita { 1040e0d7968aSToshiaki Makita return true; 1041e0d7968aSToshiaki Makita } 1042e0d7968aSToshiaki Makita 104378851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 104411538d03SRoopa Prabhu const struct net_bridge_port *port, 10452594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 104678851988SVlad Yasevich struct sk_buff *skb) 104778851988SVlad Yasevich { 104878851988SVlad Yasevich return skb; 104978851988SVlad Yasevich } 105078851988SVlad Yasevich 1051f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1052169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1053243a2e63SVlad Yasevich { 1054f418af63SNikolay Aleksandrov *changed = false; 1055243a2e63SVlad Yasevich return -EOPNOTSUPP; 1056243a2e63SVlad Yasevich } 1057243a2e63SVlad Yasevich 1058243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 1059243a2e63SVlad Yasevich { 1060243a2e63SVlad Yasevich return -EOPNOTSUPP; 1061243a2e63SVlad Yasevich } 1062243a2e63SVlad Yasevich 1063243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1064243a2e63SVlad Yasevich { 1065243a2e63SVlad Yasevich } 1066243a2e63SVlad Yasevich 1067204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1068204177f3SToshiaki Makita { 1069204177f3SToshiaki Makita } 1070204177f3SToshiaki Makita 10715be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 10728580e211SToshiaki Makita { 10735be5a2dfSVlad Yasevich return 0; 10748580e211SToshiaki Makita } 10758580e211SToshiaki Makita 1076f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1077169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1078243a2e63SVlad Yasevich { 1079f418af63SNikolay Aleksandrov *changed = false; 1080243a2e63SVlad Yasevich return -EOPNOTSUPP; 1081243a2e63SVlad Yasevich } 1082243a2e63SVlad Yasevich 1083243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1084243a2e63SVlad Yasevich { 1085243a2e63SVlad Yasevich return -EOPNOTSUPP; 1086243a2e63SVlad Yasevich } 1087243a2e63SVlad Yasevich 1088243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1089243a2e63SVlad Yasevich { 1090243a2e63SVlad Yasevich } 1091243a2e63SVlad Yasevich 10922594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 10932594e906SNikolay Aleksandrov u16 vid) 1094a37b85c9SVlad Yasevich { 1095a37b85c9SVlad Yasevich return NULL; 1096a37b85c9SVlad Yasevich } 1097bc9a25d2SVlad Yasevich 1098169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1099169327d5SPetr Machata struct netlink_ext_ack *extack) 11005be5a2dfSVlad Yasevich { 11015be5a2dfSVlad Yasevich return 0; 11025be5a2dfSVlad Yasevich } 11035be5a2dfSVlad Yasevich 110478851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1105a37b85c9SVlad Yasevich { 1106a37b85c9SVlad Yasevich return 0; 1107a37b85c9SVlad Yasevich } 11082594e906SNikolay Aleksandrov 110977751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 111078851988SVlad Yasevich { 11113df6bf45SVlad Yasevich return 0; 111278851988SVlad Yasevich } 11132796d0c6SVlad Yasevich 1114a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1115a7854037SNikolay Aleksandrov unsigned long val) 1116a7854037SNikolay Aleksandrov { 1117a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1118a7854037SNikolay Aleksandrov } 11192594e906SNikolay Aleksandrov 11202594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 11212594e906SNikolay Aleksandrov u32 filter_mask) 11222594e906SNikolay Aleksandrov { 11232594e906SNikolay Aleksandrov return 0; 11242594e906SNikolay Aleksandrov } 11252594e906SNikolay Aleksandrov 11262594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 11272594e906SNikolay Aleksandrov const struct net_bridge *br) 11282594e906SNikolay Aleksandrov { 11292594e906SNikolay Aleksandrov return NULL; 11302594e906SNikolay Aleksandrov } 11312594e906SNikolay Aleksandrov 11322594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 11332594e906SNikolay Aleksandrov const struct net_bridge_port *p) 11342594e906SNikolay Aleksandrov { 11352594e906SNikolay Aleksandrov return NULL; 11362594e906SNikolay Aleksandrov } 1137907b1e6eSNikolay Aleksandrov 1138907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1139907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1140907b1e6eSNikolay Aleksandrov { 1141907b1e6eSNikolay Aleksandrov return NULL; 1142907b1e6eSNikolay Aleksandrov } 1143907b1e6eSNikolay Aleksandrov 1144907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1145907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1146907b1e6eSNikolay Aleksandrov { 1147907b1e6eSNikolay Aleksandrov return NULL; 1148907b1e6eSNikolay Aleksandrov } 1149a60c0903SNikolay Aleksandrov 1150a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1151a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1152a60c0903SNikolay Aleksandrov { 1153a60c0903SNikolay Aleksandrov } 11549c0ec2e7SMike Manning 11559c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 11569c0ec2e7SMike Manning unsigned long event) 11579c0ec2e7SMike Manning { 11589c0ec2e7SMike Manning } 11599c0ec2e7SMike Manning 1160091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 11619c0ec2e7SMike Manning unsigned long event, void *ptr) 11629c0ec2e7SMike Manning { 1163091adf9bSNikolay Aleksandrov return 0; 11649c0ec2e7SMike Manning } 11658dcea187SNikolay Aleksandrov 11668dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_init(void) 11678dcea187SNikolay Aleksandrov { 11688dcea187SNikolay Aleksandrov } 11698dcea187SNikolay Aleksandrov 11708dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_uninit(void) 11718dcea187SNikolay Aleksandrov { 11728dcea187SNikolay Aleksandrov } 1173cf5bddb9SNikolay Aleksandrov 1174cf5bddb9SNikolay Aleksandrov static inline void br_vlan_notify(const struct net_bridge *br, 1175cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1176cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1177cf5bddb9SNikolay Aleksandrov int cmd) 1178cf5bddb9SNikolay Aleksandrov { 1179cf5bddb9SNikolay Aleksandrov } 1180243a2e63SVlad Yasevich #endif 1181243a2e63SVlad Yasevich 11821a4ba64dSPablo Neira Ayuso struct nf_br_ops { 11831a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 11841a4ba64dSPablo Neira Ayuso }; 11851a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 11861a4ba64dSPablo Neira Ayuso 11871da177e4SLinus Torvalds /* br_netfilter.c */ 118834666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 118934666d46SPablo Neira Ayuso int br_nf_core_init(void); 119034666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1191348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1192c0909713SStephen Hemminger #else 119334666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 119434666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 11954adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1196c0909713SStephen Hemminger #endif 11971da177e4SLinus Torvalds 11981da177e4SLinus Torvalds /* br_stp.c */ 1199775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1200348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1201348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1202348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 12031da177e4SLinus Torvalds 1204348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1205348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1206348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1207348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 120882dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 12099e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 121014f98f25Sstephen hemminger 121114f98f25Sstephen hemminger 12121da177e4SLinus Torvalds /* br_stp_if.c */ 1213348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1214348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1215348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 1216348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1217348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1218348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1219348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1220348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1221348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1222348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1223348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 12241da177e4SLinus Torvalds 12251da177e4SLinus Torvalds /* br_stp_bpdu.c */ 12267c85fbf0SPatrick McHardy struct stp_proto; 1227348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 12287c85fbf0SPatrick McHardy struct net_device *dev); 12291da177e4SLinus Torvalds 12301da177e4SLinus Torvalds /* br_stp_timer.c */ 1231348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1232348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1233348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 12341da177e4SLinus Torvalds 12351da177e4SLinus Torvalds /* br.c */ 1236e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1237da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1238da678292SMichał Mirosław #endif 12391da177e4SLinus Torvalds 124011dc1f36SStephen Hemminger /* br_netlink.c */ 1241149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1242348662a1SJoe Perches int br_netlink_init(void); 1243348662a1SJoe Perches void br_netlink_fini(void); 124492899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 124592899063SNikolay Aleksandrov const struct net_bridge_port *port); 12462fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 12472fd527b7SPetr Machata struct netlink_ext_ack *extack); 1248add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1249348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 125046c264daSNicolas Dichtel u32 filter_mask, int nlflags); 1251f26b2965SNikolay Aleksandrov int br_process_vlan_info(struct net_bridge *br, 1252f26b2965SNikolay Aleksandrov struct net_bridge_port *p, int cmd, 1253f26b2965SNikolay Aleksandrov struct bridge_vlan_info *vinfo_curr, 1254f26b2965SNikolay Aleksandrov struct bridge_vlan_info **vinfo_last, 1255f26b2965SNikolay Aleksandrov bool *changed, 1256f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack); 125711dc1f36SStephen Hemminger 12581da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 12591da177e4SLinus Torvalds /* br_sysfs_if.c */ 126052cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1261348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1262348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 12631da177e4SLinus Torvalds 12641da177e4SLinus Torvalds /* br_sysfs_br.c */ 1265348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1266348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 12671da177e4SLinus Torvalds 12681da177e4SLinus Torvalds #else 12691da177e4SLinus Torvalds 12700cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 12710cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 12720cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 12730cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 12741da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 12751da177e4SLinus Torvalds 12766bc506b4SIdo Schimmel /* br_switchdev.c */ 12776bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 12786bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 12796bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 12806bc506b4SIdo Schimmel struct sk_buff *skb); 12816bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 12826bc506b4SIdo Schimmel const struct sk_buff *skb); 12833922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 12843922285dSArkadi Sharshevsky unsigned long flags, 12853922285dSArkadi Sharshevsky unsigned long mask); 12866b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 12876b26b51bSArkadi Sharshevsky int type); 1288169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1289169327d5SPetr Machata struct netlink_ext_ack *extack); 1290d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1291f1c2eddfSIdo Schimmel 1292f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1293f1c2eddfSIdo Schimmel { 1294f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1295f1c2eddfSIdo Schimmel } 12966bc506b4SIdo Schimmel #else 12976bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 12986bc506b4SIdo Schimmel { 12996bc506b4SIdo Schimmel return 0; 13006bc506b4SIdo Schimmel } 13016bc506b4SIdo Schimmel 13026bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 13036bc506b4SIdo Schimmel struct sk_buff *skb) 13046bc506b4SIdo Schimmel { 13056bc506b4SIdo Schimmel } 13066bc506b4SIdo Schimmel 13076bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 13086bc506b4SIdo Schimmel const struct sk_buff *skb) 13096bc506b4SIdo Schimmel { 13106bc506b4SIdo Schimmel return true; 13116bc506b4SIdo Schimmel } 13123922285dSArkadi Sharshevsky 13133922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 13143922285dSArkadi Sharshevsky unsigned long flags, 13153922285dSArkadi Sharshevsky unsigned long mask) 13163922285dSArkadi Sharshevsky { 13173922285dSArkadi Sharshevsky return 0; 13183922285dSArkadi Sharshevsky } 13196b26b51bSArkadi Sharshevsky 1320d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1321169327d5SPetr Machata u16 vid, u16 flags, 1322169327d5SPetr Machata struct netlink_ext_ack *extack) 1323d66e4348SPetr Machata { 1324d66e4348SPetr Machata return -EOPNOTSUPP; 1325d66e4348SPetr Machata } 1326d66e4348SPetr Machata 1327d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1328d66e4348SPetr Machata { 1329d66e4348SPetr Machata return -EOPNOTSUPP; 1330d66e4348SPetr Machata } 1331d66e4348SPetr Machata 13326b26b51bSArkadi Sharshevsky static inline void 13336b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 13346b26b51bSArkadi Sharshevsky { 13356b26b51bSArkadi Sharshevsky } 1336f1c2eddfSIdo Schimmel 1337f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1338f1c2eddfSIdo Schimmel { 1339f1c2eddfSIdo Schimmel } 13406bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 13416bc506b4SIdo Schimmel 1342057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1343821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1344057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1345057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1346ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1347ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1348ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 13491da177e4SLinus Torvalds #endif 1350