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 5105a46facbSNikolay Aleksandrov static inline bool br_vlan_valid_id(u16 vid) 5115a46facbSNikolay Aleksandrov { 5125a46facbSNikolay Aleksandrov return vid > 0 && vid < VLAN_VID_MASK; 5135a46facbSNikolay Aleksandrov } 5145a46facbSNikolay Aleksandrov 5155a46facbSNikolay Aleksandrov static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, 5165a46facbSNikolay Aleksandrov const struct bridge_vlan_info *last) 5175a46facbSNikolay Aleksandrov { 5185a46facbSNikolay Aleksandrov /* pvid flag is not allowed in ranges */ 5195a46facbSNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_PVID) 5205a46facbSNikolay Aleksandrov return false; 5215a46facbSNikolay Aleksandrov 5225a46facbSNikolay Aleksandrov /* check for required range flags */ 5235a46facbSNikolay Aleksandrov if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 5245a46facbSNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END))) 5255a46facbSNikolay Aleksandrov return false; 5265a46facbSNikolay Aleksandrov 5275a46facbSNikolay Aleksandrov /* when cur is the range end, check if: 5285a46facbSNikolay Aleksandrov * - it has range start flag 5295a46facbSNikolay Aleksandrov * - range ids are invalid (end is equal to or before start) 5305a46facbSNikolay Aleksandrov */ 5315a46facbSNikolay Aleksandrov if (last) { 5325a46facbSNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) 5335a46facbSNikolay Aleksandrov return false; 5345a46facbSNikolay Aleksandrov else if (cur->vid <= last->vid) 5355a46facbSNikolay Aleksandrov return false; 5365a46facbSNikolay Aleksandrov } 5375a46facbSNikolay Aleksandrov 5385a46facbSNikolay Aleksandrov return true; 5395a46facbSNikolay Aleksandrov } 5405a46facbSNikolay Aleksandrov 541ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 542ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 543ae75767eSNikolay Aleksandrov { 544ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 545ae75767eSNikolay Aleksandrov } 546ae75767eSNikolay Aleksandrov 547a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 548a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 549a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 550a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 551a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 552a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 553a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 554a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 555ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 556ae75767eSNikolay Aleksandrov 5571da177e4SLinus Torvalds /* br_device.c */ 558348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 559348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 560348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 561cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 56291d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 56391d2c34aSHerbert Xu struct sk_buff *skb) 56491d2c34aSHerbert Xu { 56591d2c34aSHerbert Xu struct netpoll *np = p->np; 56691d2c34aSHerbert Xu 56791d2c34aSHerbert Xu if (np) 56891d2c34aSHerbert Xu netpoll_send_skb(np, skb); 56991d2c34aSHerbert Xu } 57091d2c34aSHerbert Xu 571a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 572348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 57391d2c34aSHerbert Xu #else 5749f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 57591d2c34aSHerbert Xu struct sk_buff *skb) 57691d2c34aSHerbert Xu { 57791d2c34aSHerbert Xu } 57891d2c34aSHerbert Xu 579a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 58091d2c34aSHerbert Xu { 58191d2c34aSHerbert Xu return 0; 58291d2c34aSHerbert Xu } 58391d2c34aSHerbert Xu 58491d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 58591d2c34aSHerbert Xu { 58691d2c34aSHerbert Xu } 587cfb478daSstephen hemminger #endif 5881da177e4SLinus Torvalds 5891da177e4SLinus Torvalds /* br_fdb.c */ 590348662a1SJoe Perches int br_fdb_init(void); 591348662a1SJoe Perches void br_fdb_fini(void); 592eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 593eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 594348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 595424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 596424bb9c9SToshiaki Makita const struct net_bridge_port *p, 597424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 598348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 599348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 600f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 601348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 6021ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 603bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 604bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 605bfd0aeacSNikolay Aleksandrov __u16 vid); 606348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 607348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 608348662a1SJoe Perches unsigned long off); 609348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 610348662a1SJoe Perches const unsigned char *addr, u16 vid); 611348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 612be0c5677SNikolay Aleksandrov const unsigned char *addr, u16 vid, unsigned long flags); 61377162022SJohn Fastabend 614348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 615f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 616348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 61787b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 61887b0984eSPetr Machata struct netlink_ext_ack *extack); 619348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 620d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 62147674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 62247674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 62347674562SRoopa Prabhu struct netlink_ext_ack *extack); 6248db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 6258db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 6263aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 627161d82deSPetr Machata const unsigned char *addr, u16 vid, 628161d82deSPetr Machata bool swdev_notify); 6293aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 630161d82deSPetr Machata const unsigned char *addr, u16 vid, 631161d82deSPetr Machata bool swdev_notify); 6329fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 633e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 6341da177e4SLinus Torvalds 6351da177e4SLinus Torvalds /* br_forward.c */ 6368addd5e7SNikolay Aleksandrov enum br_pkt_type { 6378addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 6388addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 6398addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 6408addd5e7SNikolay Aleksandrov }; 6410c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 642b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 64337b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 6440c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 64537b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 6468addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 6471da177e4SLinus Torvalds 6487d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 6497d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 6507d850abdSNikolay Aleksandrov const struct sk_buff *skb) 6517d850abdSNikolay Aleksandrov { 6527d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 6537d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 6547d850abdSNikolay Aleksandrov } 6557d850abdSNikolay Aleksandrov 6561da177e4SLinus Torvalds /* br_if.c */ 657faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 658348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 659348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 660ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 661ca752be0SDavid Ahern struct netlink_ext_ack *extack); 662348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 663804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 664348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 665c8f44affSMichał Mirosław netdev_features_t features); 666e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 6672796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 6682756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 6691da177e4SLinus Torvalds 6701da177e4SLinus Torvalds /* br_input.c */ 6710c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 672348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 6731da177e4SLinus Torvalds 674859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 675859828c0SJiri Pirko { 676859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 677859828c0SJiri Pirko } 678859828c0SJiri Pirko 6794d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 6804d4fd361SPetr Machata { 6814d4fd361SPetr Machata return rcu_dereference_rtnl(dev->rx_handler) == br_handle_frame; 6824d4fd361SPetr Machata } 6834d4fd361SPetr Machata 684859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 685859828c0SJiri Pirko { 686859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 687859828c0SJiri Pirko } 688859828c0SJiri Pirko 6894d4fd361SPetr Machata static inline struct net_bridge_port * 6904d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 6914d4fd361SPetr Machata { 6924d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 6934d4fd361SPetr Machata } 6944d4fd361SPetr Machata 6951da177e4SLinus Torvalds /* br_ioctl.c */ 696348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 697348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 698348662a1SJoe Perches void __user *arg); 6991da177e4SLinus Torvalds 700eb1d1641SHerbert Xu /* br_multicast.c */ 701eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 702348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 703fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 704348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 705eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 7061080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 707348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 708348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 709348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 710348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 711348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 712348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 713e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 71437b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 71537b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 716348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 717348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 718348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 719348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 720348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 7215e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 722aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 723aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 724aa2ae3e7SNikolay Aleksandrov #endif 725348662a1SJoe Perches struct net_bridge_mdb_entry * 72619e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 727348662a1SJoe Perches struct net_bridge_mdb_entry * 72819e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 729348662a1SJoe Perches struct net_bridge_port_group * 730348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 731762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 7326db6f0eaSFelix Fietkau unsigned char flags, const unsigned char *src); 73319e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 73419e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 73545ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 73645ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 737949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 738949f1e39SSatish Ashok int type); 7391080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 740a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 7411080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 742b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 7431080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 7441080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 7451080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 74619e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 74719e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 7481bc844eeSNikolay Aleksandrov void br_multicast_host_join(struct net_bridge_mdb_entry *mp, bool notify); 7491bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 75085b35269SSridhar Samudrala 751cfd56754SCong Wang #define mlock_dereference(X, br) \ 752cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 753cfd56754SCong Wang 75485b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 75585b35269SSridhar Samudrala { 75685b35269SSridhar Samudrala return br->multicast_router == 2 || 75785b35269SSridhar Samudrala (br->multicast_router == 1 && 75885b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 75985b35269SSridhar Samudrala } 760b00589afSLinus Lüssing 761cc0fdd80SLinus Lüssing static inline bool 762cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 7630888d5f3Sdaniel struct bridge_mcast_other_query *querier, 7640888d5f3Sdaniel const bool is_ipv6) 765b00589afSLinus Lüssing { 7660888d5f3Sdaniel bool own_querier_enabled; 7670888d5f3Sdaniel 768675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 769675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 7700888d5f3Sdaniel own_querier_enabled = false; 7710888d5f3Sdaniel else 7720888d5f3Sdaniel own_querier_enabled = true; 7730888d5f3Sdaniel } else { 7740888d5f3Sdaniel own_querier_enabled = false; 7750888d5f3Sdaniel } 7760888d5f3Sdaniel 777cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 7780888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 779cc0fdd80SLinus Lüssing } 780cc0fdd80SLinus Lüssing 781cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 782cc0fdd80SLinus Lüssing struct ethhdr *eth) 783cc0fdd80SLinus Lüssing { 784cc0fdd80SLinus Lüssing switch (eth->h_proto) { 785cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 7860888d5f3Sdaniel return __br_multicast_querier_exists(br, 7870888d5f3Sdaniel &br->ip4_other_query, false); 788cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 789cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 7900888d5f3Sdaniel return __br_multicast_querier_exists(br, 7910888d5f3Sdaniel &br->ip6_other_query, true); 792cc0fdd80SLinus Lüssing #endif 793cc0fdd80SLinus Lüssing default: 794cc0fdd80SLinus Lüssing return false; 795cc0fdd80SLinus Lüssing } 796b00589afSLinus Lüssing } 7971080ab95SNikolay Aleksandrov 7981080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 7991080ab95SNikolay Aleksandrov { 8001080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 8011080ab95SNikolay Aleksandrov } 802eb1d1641SHerbert Xu #else 803eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 804eb1d1641SHerbert Xu struct net_bridge_port *port, 80506499098SVlad Yasevich struct sk_buff *skb, 80606499098SVlad Yasevich u16 vid) 807eb1d1641SHerbert Xu { 808eb1d1641SHerbert Xu return 0; 809eb1d1641SHerbert Xu } 810eb1d1641SHerbert Xu 811eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 812fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 813eb1d1641SHerbert Xu { 814eb1d1641SHerbert Xu return NULL; 815eb1d1641SHerbert Xu } 816eb1d1641SHerbert Xu 8171080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 818eb1d1641SHerbert Xu { 8191080ab95SNikolay Aleksandrov return 0; 820eb1d1641SHerbert Xu } 821eb1d1641SHerbert Xu 822eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 823eb1d1641SHerbert Xu { 824eb1d1641SHerbert Xu } 825eb1d1641SHerbert Xu 826eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 827eb1d1641SHerbert Xu { 828eb1d1641SHerbert Xu } 829eb1d1641SHerbert Xu 830eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 831eb1d1641SHerbert Xu { 832eb1d1641SHerbert Xu } 833eb1d1641SHerbert Xu 834eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 835eb1d1641SHerbert Xu { 836eb1d1641SHerbert Xu } 837eb1d1641SHerbert Xu 838eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 839eb1d1641SHerbert Xu { 840eb1d1641SHerbert Xu } 841eb1d1641SHerbert Xu 842eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 843eb1d1641SHerbert Xu { 844eb1d1641SHerbert Xu } 8455cb5e947SHerbert Xu 846a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 847a7ce45a7SNikolay Aleksandrov { 848a7ce45a7SNikolay Aleksandrov } 849a7ce45a7SNikolay Aleksandrov 85037b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 85137b090e6SNikolay Aleksandrov struct sk_buff *skb, 85237b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 8535cb5e947SHerbert Xu { 8545cb5e947SHerbert Xu } 8555cb5e947SHerbert Xu 856eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 857eb1d1641SHerbert Xu { 85803aaa9e2SGustavo A. R. Silva return false; 859eb1d1641SHerbert Xu } 86037b090e6SNikolay Aleksandrov 861cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 862cc0fdd80SLinus Lüssing struct ethhdr *eth) 863b00589afSLinus Lüssing { 864b00589afSLinus Lüssing return false; 865b00589afSLinus Lüssing } 86637b090e6SNikolay Aleksandrov 867fdb184d1SRami Rosen static inline void br_mdb_init(void) 868fdb184d1SRami Rosen { 869fdb184d1SRami Rosen } 87037b090e6SNikolay Aleksandrov 871fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 872fdb184d1SRami Rosen { 873fdb184d1SRami Rosen } 8741080ab95SNikolay Aleksandrov 87519e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 87619e3a9c9SNikolay Aleksandrov { 87719e3a9c9SNikolay Aleksandrov return 0; 87819e3a9c9SNikolay Aleksandrov } 87919e3a9c9SNikolay Aleksandrov 88019e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 88119e3a9c9SNikolay Aleksandrov { 88219e3a9c9SNikolay Aleksandrov } 88319e3a9c9SNikolay Aleksandrov 8841080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 8851080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 886a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 887a65056ecSNikolay Aleksandrov u8 type, u8 dir) 8881080ab95SNikolay Aleksandrov { 8891080ab95SNikolay Aleksandrov } 8901080ab95SNikolay Aleksandrov 8911080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 8921080ab95SNikolay Aleksandrov { 8931080ab95SNikolay Aleksandrov return 0; 8941080ab95SNikolay Aleksandrov } 8951080ab95SNikolay Aleksandrov 896b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 897b6fe0440SIdo Schimmel { 898b6fe0440SIdo Schimmel } 899b6fe0440SIdo Schimmel 9001080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 9011080ab95SNikolay Aleksandrov { 9021080ab95SNikolay Aleksandrov return 0; 9031080ab95SNikolay Aleksandrov } 90485b35269SSridhar Samudrala #endif 905eb1d1641SHerbert Xu 906243a2e63SVlad Yasevich /* br_vlan.c */ 907243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 90877751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 90977751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 9102594e906SNikolay Aleksandrov u16 *vid); 91177751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 91285f46c6bSVlad Yasevich const struct sk_buff *skb); 913e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 914348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 91511538d03SRoopa Prabhu const struct net_bridge_port *port, 9162594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 91778851988SVlad Yasevich struct sk_buff *skb); 918f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 919169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 920348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 921348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 9222594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 923204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 924a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 925348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 926d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 927204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 9286dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 9299163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 9305be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 93196a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 932169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 933169327d5SPetr Machata struct netlink_ext_ack *extack); 934f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 935169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 936348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 937348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 938169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 9392594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 940a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 941a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 9429c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 943091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 9449c0ec2e7SMike Manning void *ptr); 945a37b85c9SVlad Yasevich 9462594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 947a37b85c9SVlad Yasevich const struct net_bridge *br) 948a37b85c9SVlad Yasevich { 949907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 950a37b85c9SVlad Yasevich } 951a37b85c9SVlad Yasevich 9522594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 953a37b85c9SVlad Yasevich const struct net_bridge_port *p) 954a37b85c9SVlad Yasevich { 955907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 956907b1e6eSNikolay Aleksandrov } 957907b1e6eSNikolay Aleksandrov 958907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 959907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 960907b1e6eSNikolay Aleksandrov { 961907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 962907b1e6eSNikolay Aleksandrov } 963907b1e6eSNikolay Aleksandrov 964907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 965907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 966907b1e6eSNikolay Aleksandrov { 967907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 968a37b85c9SVlad Yasevich } 969a37b85c9SVlad Yasevich 970a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 971a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 972a37b85c9SVlad Yasevich */ 973a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 974a37b85c9SVlad Yasevich { 975a37b85c9SVlad Yasevich int err = 0; 976a37b85c9SVlad Yasevich 9772594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 9785978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 9792594e906SNikolay Aleksandrov } else { 980a37b85c9SVlad Yasevich *vid = 0; 981a37b85c9SVlad Yasevich err = -EINVAL; 982a37b85c9SVlad Yasevich } 983a37b85c9SVlad Yasevich 984a37b85c9SVlad Yasevich return err; 985a37b85c9SVlad Yasevich } 98678851988SVlad Yasevich 98777751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 98878851988SVlad Yasevich { 98977751ee8SNikolay Aleksandrov if (!vg) 9905be5a2dfSVlad Yasevich return 0; 9915be5a2dfSVlad Yasevich 99278851988SVlad Yasevich smp_rmb(); 99377751ee8SNikolay Aleksandrov return vg->pvid; 99478851988SVlad Yasevich } 99578851988SVlad Yasevich 996243a2e63SVlad Yasevich #else 99777751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 99877751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 9992594e906SNikolay Aleksandrov struct sk_buff *skb, 10002594e906SNikolay Aleksandrov u16 *vid) 10012594e906SNikolay Aleksandrov { 10022594e906SNikolay Aleksandrov return true; 10032594e906SNikolay Aleksandrov } 10042594e906SNikolay Aleksandrov 10052594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 100685f46c6bSVlad Yasevich const struct sk_buff *skb) 100785f46c6bSVlad Yasevich { 100885f46c6bSVlad Yasevich return true; 100985f46c6bSVlad Yasevich } 101085f46c6bSVlad Yasevich 1011e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 1012e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 1013e0d7968aSToshiaki Makita { 1014e0d7968aSToshiaki Makita return true; 1015e0d7968aSToshiaki Makita } 1016e0d7968aSToshiaki Makita 101778851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 101811538d03SRoopa Prabhu const struct net_bridge_port *port, 10192594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 102078851988SVlad Yasevich struct sk_buff *skb) 102178851988SVlad Yasevich { 102278851988SVlad Yasevich return skb; 102378851988SVlad Yasevich } 102478851988SVlad Yasevich 1025f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1026169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1027243a2e63SVlad Yasevich { 1028f418af63SNikolay Aleksandrov *changed = false; 1029243a2e63SVlad Yasevich return -EOPNOTSUPP; 1030243a2e63SVlad Yasevich } 1031243a2e63SVlad Yasevich 1032243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 1033243a2e63SVlad Yasevich { 1034243a2e63SVlad Yasevich return -EOPNOTSUPP; 1035243a2e63SVlad Yasevich } 1036243a2e63SVlad Yasevich 1037243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1038243a2e63SVlad Yasevich { 1039243a2e63SVlad Yasevich } 1040243a2e63SVlad Yasevich 1041204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1042204177f3SToshiaki Makita { 1043204177f3SToshiaki Makita } 1044204177f3SToshiaki Makita 10455be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 10468580e211SToshiaki Makita { 10475be5a2dfSVlad Yasevich return 0; 10488580e211SToshiaki Makita } 10498580e211SToshiaki Makita 1050f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1051169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1052243a2e63SVlad Yasevich { 1053f418af63SNikolay Aleksandrov *changed = false; 1054243a2e63SVlad Yasevich return -EOPNOTSUPP; 1055243a2e63SVlad Yasevich } 1056243a2e63SVlad Yasevich 1057243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1058243a2e63SVlad Yasevich { 1059243a2e63SVlad Yasevich return -EOPNOTSUPP; 1060243a2e63SVlad Yasevich } 1061243a2e63SVlad Yasevich 1062243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1063243a2e63SVlad Yasevich { 1064243a2e63SVlad Yasevich } 1065243a2e63SVlad Yasevich 10662594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 10672594e906SNikolay Aleksandrov u16 vid) 1068a37b85c9SVlad Yasevich { 1069a37b85c9SVlad Yasevich return NULL; 1070a37b85c9SVlad Yasevich } 1071bc9a25d2SVlad Yasevich 1072169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1073169327d5SPetr Machata struct netlink_ext_ack *extack) 10745be5a2dfSVlad Yasevich { 10755be5a2dfSVlad Yasevich return 0; 10765be5a2dfSVlad Yasevich } 10775be5a2dfSVlad Yasevich 107878851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1079a37b85c9SVlad Yasevich { 1080a37b85c9SVlad Yasevich return 0; 1081a37b85c9SVlad Yasevich } 10822594e906SNikolay Aleksandrov 108377751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 108478851988SVlad Yasevich { 10853df6bf45SVlad Yasevich return 0; 108678851988SVlad Yasevich } 10872796d0c6SVlad Yasevich 1088a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1089a7854037SNikolay Aleksandrov unsigned long val) 1090a7854037SNikolay Aleksandrov { 1091a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1092a7854037SNikolay Aleksandrov } 10932594e906SNikolay Aleksandrov 10942594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 10952594e906SNikolay Aleksandrov u32 filter_mask) 10962594e906SNikolay Aleksandrov { 10972594e906SNikolay Aleksandrov return 0; 10982594e906SNikolay Aleksandrov } 10992594e906SNikolay Aleksandrov 11002594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 11012594e906SNikolay Aleksandrov const struct net_bridge *br) 11022594e906SNikolay Aleksandrov { 11032594e906SNikolay Aleksandrov return NULL; 11042594e906SNikolay Aleksandrov } 11052594e906SNikolay Aleksandrov 11062594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 11072594e906SNikolay Aleksandrov const struct net_bridge_port *p) 11082594e906SNikolay Aleksandrov { 11092594e906SNikolay Aleksandrov return NULL; 11102594e906SNikolay Aleksandrov } 1111907b1e6eSNikolay Aleksandrov 1112907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1113907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1114907b1e6eSNikolay Aleksandrov { 1115907b1e6eSNikolay Aleksandrov return NULL; 1116907b1e6eSNikolay Aleksandrov } 1117907b1e6eSNikolay Aleksandrov 1118907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1119907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1120907b1e6eSNikolay Aleksandrov { 1121907b1e6eSNikolay Aleksandrov return NULL; 1122907b1e6eSNikolay Aleksandrov } 1123a60c0903SNikolay Aleksandrov 1124a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1125a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1126a60c0903SNikolay Aleksandrov { 1127a60c0903SNikolay Aleksandrov } 11289c0ec2e7SMike Manning 11299c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 11309c0ec2e7SMike Manning unsigned long event) 11319c0ec2e7SMike Manning { 11329c0ec2e7SMike Manning } 11339c0ec2e7SMike Manning 1134091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 11359c0ec2e7SMike Manning unsigned long event, void *ptr) 11369c0ec2e7SMike Manning { 1137091adf9bSNikolay Aleksandrov return 0; 11389c0ec2e7SMike Manning } 1139243a2e63SVlad Yasevich #endif 1140243a2e63SVlad Yasevich 11411a4ba64dSPablo Neira Ayuso struct nf_br_ops { 11421a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 11431a4ba64dSPablo Neira Ayuso }; 11441a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 11451a4ba64dSPablo Neira Ayuso 11461da177e4SLinus Torvalds /* br_netfilter.c */ 114734666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 114834666d46SPablo Neira Ayuso int br_nf_core_init(void); 114934666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1150348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1151c0909713SStephen Hemminger #else 115234666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 115334666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 11544adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1155c0909713SStephen Hemminger #endif 11561da177e4SLinus Torvalds 11571da177e4SLinus Torvalds /* br_stp.c */ 1158775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1159348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1160348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1161348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 11621da177e4SLinus Torvalds 1163348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1164348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1165348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1166348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 116782dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 11689e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 116914f98f25Sstephen hemminger 117014f98f25Sstephen hemminger 11711da177e4SLinus Torvalds /* br_stp_if.c */ 1172348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1173348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1174348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 1175348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1176348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1177348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1178348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1179348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1180348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1181348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1182348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 11831da177e4SLinus Torvalds 11841da177e4SLinus Torvalds /* br_stp_bpdu.c */ 11857c85fbf0SPatrick McHardy struct stp_proto; 1186348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 11877c85fbf0SPatrick McHardy struct net_device *dev); 11881da177e4SLinus Torvalds 11891da177e4SLinus Torvalds /* br_stp_timer.c */ 1190348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1191348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1192348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 11931da177e4SLinus Torvalds 11941da177e4SLinus Torvalds /* br.c */ 1195e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1196da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1197da678292SMichał Mirosław #endif 11981da177e4SLinus Torvalds 119911dc1f36SStephen Hemminger /* br_netlink.c */ 1200149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1201348662a1SJoe Perches int br_netlink_init(void); 1202348662a1SJoe Perches void br_netlink_fini(void); 120392899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 120492899063SNikolay Aleksandrov const struct net_bridge_port *port); 12052fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 12062fd527b7SPetr Machata struct netlink_ext_ack *extack); 1207add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1208348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 120946c264daSNicolas Dichtel u32 filter_mask, int nlflags); 121011dc1f36SStephen Hemminger 12111da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 12121da177e4SLinus Torvalds /* br_sysfs_if.c */ 121352cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1214348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1215348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 12161da177e4SLinus Torvalds 12171da177e4SLinus Torvalds /* br_sysfs_br.c */ 1218348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1219348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 12201da177e4SLinus Torvalds 12211da177e4SLinus Torvalds #else 12221da177e4SLinus Torvalds 12230cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 12240cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 12250cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 12260cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 12271da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 12281da177e4SLinus Torvalds 12296bc506b4SIdo Schimmel /* br_switchdev.c */ 12306bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 12316bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 12326bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 12336bc506b4SIdo Schimmel struct sk_buff *skb); 12346bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 12356bc506b4SIdo Schimmel const struct sk_buff *skb); 12363922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 12373922285dSArkadi Sharshevsky unsigned long flags, 12383922285dSArkadi Sharshevsky unsigned long mask); 12396b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 12406b26b51bSArkadi Sharshevsky int type); 1241169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1242169327d5SPetr Machata struct netlink_ext_ack *extack); 1243d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1244f1c2eddfSIdo Schimmel 1245f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1246f1c2eddfSIdo Schimmel { 1247f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1248f1c2eddfSIdo Schimmel } 12496bc506b4SIdo Schimmel #else 12506bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 12516bc506b4SIdo Schimmel { 12526bc506b4SIdo Schimmel return 0; 12536bc506b4SIdo Schimmel } 12546bc506b4SIdo Schimmel 12556bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 12566bc506b4SIdo Schimmel struct sk_buff *skb) 12576bc506b4SIdo Schimmel { 12586bc506b4SIdo Schimmel } 12596bc506b4SIdo Schimmel 12606bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 12616bc506b4SIdo Schimmel const struct sk_buff *skb) 12626bc506b4SIdo Schimmel { 12636bc506b4SIdo Schimmel return true; 12646bc506b4SIdo Schimmel } 12653922285dSArkadi Sharshevsky 12663922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 12673922285dSArkadi Sharshevsky unsigned long flags, 12683922285dSArkadi Sharshevsky unsigned long mask) 12693922285dSArkadi Sharshevsky { 12703922285dSArkadi Sharshevsky return 0; 12713922285dSArkadi Sharshevsky } 12726b26b51bSArkadi Sharshevsky 1273d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1274169327d5SPetr Machata u16 vid, u16 flags, 1275169327d5SPetr Machata struct netlink_ext_ack *extack) 1276d66e4348SPetr Machata { 1277d66e4348SPetr Machata return -EOPNOTSUPP; 1278d66e4348SPetr Machata } 1279d66e4348SPetr Machata 1280d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1281d66e4348SPetr Machata { 1282d66e4348SPetr Machata return -EOPNOTSUPP; 1283d66e4348SPetr Machata } 1284d66e4348SPetr Machata 12856b26b51bSArkadi Sharshevsky static inline void 12866b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 12876b26b51bSArkadi Sharshevsky { 12886b26b51bSArkadi Sharshevsky } 1289f1c2eddfSIdo Schimmel 1290f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1291f1c2eddfSIdo Schimmel { 1292f1c2eddfSIdo Schimmel } 12936bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 12946bc506b4SIdo Schimmel 1295057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1296821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1297057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1298057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1299ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1300ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1301ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 13021da177e4SLinus Torvalds #endif 1303