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; 2861da177e4SLinus Torvalds }; 2871da177e4SLinus Torvalds 288705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 289705e0deaSTyler Hicks 290e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 291f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 292e028e4b8SVlad Yasevich 293b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 294b5ed54e9Sstephen hemminger { 295716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 296b5ed54e9Sstephen hemminger } 297b5ed54e9Sstephen hemminger 2981fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 299b5ed54e9Sstephen hemminger { 30035f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 301ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 302b5ed54e9Sstephen hemminger } 303b5ed54e9Sstephen hemminger 3040baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 3050baa10ffSArkadi Sharshevsky { 30635f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 3070baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3080baa10ffSArkadi Sharshevsky } 3090baa10ffSArkadi Sharshevsky 310ae75767eSNikolay Aleksandrov enum net_bridge_opts { 311ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 312ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 3138df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 3148df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 3158df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 316be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 31713cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 318675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 319675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 320675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 321675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 322c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 3233341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 3249163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 32570e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 3269c0ec2e7SMike Manning BROPT_VLAN_BRIDGE_BINDING, 327ae75767eSNikolay Aleksandrov }; 328ae75767eSNikolay Aleksandrov 3291f90c7f3SNikolay Aleksandrov struct net_bridge { 3301da177e4SLinus Torvalds spinlock_t lock; 3311f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 3321da177e4SLinus Torvalds struct list_head port_list; 3331da177e4SLinus Torvalds struct net_device *dev; 3348f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 335ae75767eSNikolay Aleksandrov unsigned long options; 3361f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3371f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3381f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3391f90c7f3SNikolay Aleksandrov u16 default_pvid; 3401f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3411f90c7f3SNikolay Aleksandrov #endif 3421f90c7f3SNikolay Aleksandrov 343eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 34434666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 345efb6de9bSBernhard Thaler union { 3464adf0af6SSimon Wunderlich struct rtable fake_rtable; 347efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 348efb6de9bSBernhard Thaler }; 3494adf0af6SSimon Wunderlich #endif 350515853ccSstephen hemminger u16 group_fwd_mask; 351f2808d22SToshiaki Makita u16 group_fwd_mask_required; 352515853ccSstephen hemminger 3531da177e4SLinus Torvalds /* STP */ 3541da177e4SLinus Torvalds bridge_id designated_root; 3551da177e4SLinus Torvalds bridge_id bridge_id; 3561f90c7f3SNikolay Aleksandrov unsigned char topology_change; 3571f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 3581f90c7f3SNikolay Aleksandrov u16 root_port; 3591da177e4SLinus Torvalds unsigned long max_age; 3601da177e4SLinus Torvalds unsigned long hello_time; 3611da177e4SLinus Torvalds unsigned long forward_delay; 3621da177e4SLinus Torvalds unsigned long ageing_time; 36334d8acd8SVivien Didelot unsigned long bridge_max_age; 3641da177e4SLinus Torvalds unsigned long bridge_hello_time; 3651da177e4SLinus Torvalds unsigned long bridge_forward_delay; 36634d8acd8SVivien Didelot unsigned long bridge_ageing_time; 36735750b0bSNikolay Aleksandrov u32 root_path_cost; 3681da177e4SLinus Torvalds 369fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 3709cde0708SStephen Hemminger 3719cde0708SStephen Hemminger enum { 3729cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 3739cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 3749cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 3759cde0708SStephen Hemminger } stp_enabled; 3769cde0708SStephen Hemminger 377eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 378eb1d1641SHerbert Xu 379eb1d1641SHerbert Xu u32 hash_max; 380eb1d1641SHerbert Xu 381eb1d1641SHerbert Xu u32 multicast_last_member_count; 382eb1d1641SHerbert Xu u32 multicast_startup_query_count; 383eb1d1641SHerbert Xu 3845e923585SNikolay Aleksandrov u8 multicast_igmp_version; 385675779adSNikolay Aleksandrov u8 multicast_router; 386675779adSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 387675779adSNikolay Aleksandrov u8 multicast_mld_version; 388675779adSNikolay Aleksandrov #endif 38935750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 390eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 391eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 392eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 393eb1d1641SHerbert Xu unsigned long multicast_query_interval; 394eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 395eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 396eb1d1641SHerbert Xu 39719e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 39819e3a9c9SNikolay Aleksandrov 39919e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 400eb1d1641SHerbert Xu struct hlist_head router_list; 401eb1d1641SHerbert Xu 402eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 40390010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 40490010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 405dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 4061080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 407cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 40890010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 40990010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 410dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 411cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 412eb1d1641SHerbert Xu #endif 413eb1d1641SHerbert Xu 4141da177e4SLinus Torvalds struct timer_list hello_timer; 4151da177e4SLinus Torvalds struct timer_list tcn_timer; 4161da177e4SLinus Torvalds struct timer_list topology_change_timer; 417f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 41843b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 419e028e4b8SVlad Yasevich u32 auto_cnt; 4206bc506b4SIdo Schimmel 4216bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4226bc506b4SIdo Schimmel int offload_fwd_mark; 4236bc506b4SIdo Schimmel #endif 424eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4251da177e4SLinus Torvalds }; 4261da177e4SLinus Torvalds 42768b7c895SHerbert Xu struct br_input_skb_cb { 42868b7c895SHerbert Xu struct net_device *brdev; 42993fdd47eSHerbert Xu 4303c171f49SPablo Neira Ayuso u16 frag_max_size; 43132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 432f12064d1SFlorian Westphal u8 igmp; 433f12064d1SFlorian Westphal u8 mrouters_only:1; 43432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 435f12064d1SFlorian Westphal u8 proxyarp_replied:1; 436f12064d1SFlorian Westphal u8 src_port_isolated:1; 43720adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 438f12064d1SFlorian Westphal u8 vlan_filtered:1; 43920adfa1aSVlad Yasevich #endif 440223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 441223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 442223fd0adSFlorian Westphal #endif 4436bc506b4SIdo Schimmel 4446bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4456bc506b4SIdo Schimmel int offload_fwd_mark; 4466bc506b4SIdo Schimmel #endif 44768b7c895SHerbert Xu }; 44868b7c895SHerbert Xu 44968b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 45068b7c895SHerbert Xu 45132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 45232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 45332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 45432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 45532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 45632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 45728a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 45828a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 45928a16c97Sstephen hemminger 46028a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 46128a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 46228a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 46328a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 46428a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 46528a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 46628a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 46728a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 46828a16c97Sstephen hemminger 46928a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 47028a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 47128a16c97Sstephen hemminger 4721da177e4SLinus Torvalds /* called under bridge lock */ 4731da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 4741da177e4SLinus Torvalds { 4751da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 4761da177e4SLinus Torvalds } 4771da177e4SLinus Torvalds 4782594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 4792594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 4802594e906SNikolay Aleksandrov { 4812594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 4822594e906SNikolay Aleksandrov } 4832594e906SNikolay Aleksandrov 4842594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 4852594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 4862594e906SNikolay Aleksandrov { 4872594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 4882594e906SNikolay Aleksandrov } 4892594e906SNikolay Aleksandrov 4906be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 4912594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 4922594e906SNikolay Aleksandrov { 4932594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 4942594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 4952594e906SNikolay Aleksandrov return true; 4962594e906SNikolay Aleksandrov else 4972594e906SNikolay Aleksandrov return false; 4982594e906SNikolay Aleksandrov } 4992594e906SNikolay Aleksandrov 5002594e906SNikolay Aleksandrov return true; 5012594e906SNikolay Aleksandrov } 5022594e906SNikolay Aleksandrov 5035d1fcaf3SNikolay Aleksandrov static inline bool nbp_state_should_learn(const struct net_bridge_port *p) 5045d1fcaf3SNikolay Aleksandrov { 5055d1fcaf3SNikolay Aleksandrov return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; 5065d1fcaf3SNikolay Aleksandrov } 5075d1fcaf3SNikolay Aleksandrov 508ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 509ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 510ae75767eSNikolay Aleksandrov { 511ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 512ae75767eSNikolay Aleksandrov } 513ae75767eSNikolay Aleksandrov 514a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 515a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 516a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 517a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 518a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 519a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 520a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 521a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 522ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 523ae75767eSNikolay Aleksandrov 5241da177e4SLinus Torvalds /* br_device.c */ 525348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 526348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 527348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 528cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 52991d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 53091d2c34aSHerbert Xu struct sk_buff *skb) 53191d2c34aSHerbert Xu { 53291d2c34aSHerbert Xu struct netpoll *np = p->np; 53391d2c34aSHerbert Xu 53491d2c34aSHerbert Xu if (np) 53591d2c34aSHerbert Xu netpoll_send_skb(np, skb); 53691d2c34aSHerbert Xu } 53791d2c34aSHerbert Xu 538a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 539348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 54091d2c34aSHerbert Xu #else 5419f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 54291d2c34aSHerbert Xu struct sk_buff *skb) 54391d2c34aSHerbert Xu { 54491d2c34aSHerbert Xu } 54591d2c34aSHerbert Xu 546a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 54791d2c34aSHerbert Xu { 54891d2c34aSHerbert Xu return 0; 54991d2c34aSHerbert Xu } 55091d2c34aSHerbert Xu 55191d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 55291d2c34aSHerbert Xu { 55391d2c34aSHerbert Xu } 554cfb478daSstephen hemminger #endif 5551da177e4SLinus Torvalds 5561da177e4SLinus Torvalds /* br_fdb.c */ 557348662a1SJoe Perches int br_fdb_init(void); 558348662a1SJoe Perches void br_fdb_fini(void); 559eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 560eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 561348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 562424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 563424bb9c9SToshiaki Makita const struct net_bridge_port *p, 564424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 565348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 566348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 567f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 568348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 5691ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 570bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 571bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 572bfd0aeacSNikolay Aleksandrov __u16 vid); 573348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 574348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 575348662a1SJoe Perches unsigned long off); 576348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 577348662a1SJoe Perches const unsigned char *addr, u16 vid); 578348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 579be0c5677SNikolay Aleksandrov const unsigned char *addr, u16 vid, unsigned long flags); 58077162022SJohn Fastabend 581348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 582f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 583348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 58487b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 58587b0984eSPetr Machata struct netlink_ext_ack *extack); 586348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 587d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 58847674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 58947674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 59047674562SRoopa Prabhu struct netlink_ext_ack *extack); 5918db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 5928db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 5933aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 594161d82deSPetr Machata const unsigned char *addr, u16 vid, 595161d82deSPetr Machata bool swdev_notify); 5963aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 597161d82deSPetr Machata const unsigned char *addr, u16 vid, 598161d82deSPetr Machata bool swdev_notify); 5999fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 600e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 6011da177e4SLinus Torvalds 6021da177e4SLinus Torvalds /* br_forward.c */ 6038addd5e7SNikolay Aleksandrov enum br_pkt_type { 6048addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 6058addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 6068addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 6078addd5e7SNikolay Aleksandrov }; 6080c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 609b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 61037b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 6110c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 61237b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 6138addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 6141da177e4SLinus Torvalds 6157d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 6167d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 6177d850abdSNikolay Aleksandrov const struct sk_buff *skb) 6187d850abdSNikolay Aleksandrov { 6197d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 6207d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 6217d850abdSNikolay Aleksandrov } 6227d850abdSNikolay Aleksandrov 6231da177e4SLinus Torvalds /* br_if.c */ 624faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 625348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 626348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 627ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 628ca752be0SDavid Ahern struct netlink_ext_ack *extack); 629348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 630804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 631348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 632c8f44affSMichał Mirosław netdev_features_t features); 633e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 6342796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 6352756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 6361da177e4SLinus Torvalds 6371da177e4SLinus Torvalds /* br_input.c */ 6380c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 639348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 6401da177e4SLinus Torvalds 641859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 642859828c0SJiri Pirko { 643859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 644859828c0SJiri Pirko } 645859828c0SJiri Pirko 6464d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 6474d4fd361SPetr Machata { 6484d4fd361SPetr Machata return rcu_dereference_rtnl(dev->rx_handler) == br_handle_frame; 6494d4fd361SPetr Machata } 6504d4fd361SPetr Machata 651859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 652859828c0SJiri Pirko { 653859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 654859828c0SJiri Pirko } 655859828c0SJiri Pirko 6564d4fd361SPetr Machata static inline struct net_bridge_port * 6574d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 6584d4fd361SPetr Machata { 6594d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 6604d4fd361SPetr Machata } 6614d4fd361SPetr Machata 6621da177e4SLinus Torvalds /* br_ioctl.c */ 663348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 664348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 665348662a1SJoe Perches void __user *arg); 6661da177e4SLinus Torvalds 667eb1d1641SHerbert Xu /* br_multicast.c */ 668eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 669348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 670fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 671348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 672eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 6731080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 674348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 675348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 676348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 677348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 678348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 679348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 680e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 68137b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 68237b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 683348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 684348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 685348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 686348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 687348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 6885e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 689aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 690aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 691aa2ae3e7SNikolay Aleksandrov #endif 692348662a1SJoe Perches struct net_bridge_mdb_entry * 69319e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 694348662a1SJoe Perches struct net_bridge_mdb_entry * 69519e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 696348662a1SJoe Perches struct net_bridge_port_group * 697348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 698762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 6996db6f0eaSFelix Fietkau unsigned char flags, const unsigned char *src); 70019e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 70119e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 70245ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 70345ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 704949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 705949f1e39SSatish Ashok int type); 7061080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 707a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 7081080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 709b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 7101080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 7111080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 7121080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 71319e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 71419e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 7151bc844eeSNikolay Aleksandrov void br_multicast_host_join(struct net_bridge_mdb_entry *mp, bool notify); 7161bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 71785b35269SSridhar Samudrala 718cfd56754SCong Wang #define mlock_dereference(X, br) \ 719cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 720cfd56754SCong Wang 72185b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 72285b35269SSridhar Samudrala { 72385b35269SSridhar Samudrala return br->multicast_router == 2 || 72485b35269SSridhar Samudrala (br->multicast_router == 1 && 72585b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 72685b35269SSridhar Samudrala } 727b00589afSLinus Lüssing 728cc0fdd80SLinus Lüssing static inline bool 729cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 7300888d5f3Sdaniel struct bridge_mcast_other_query *querier, 7310888d5f3Sdaniel const bool is_ipv6) 732b00589afSLinus Lüssing { 7330888d5f3Sdaniel bool own_querier_enabled; 7340888d5f3Sdaniel 735675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 736675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 7370888d5f3Sdaniel own_querier_enabled = false; 7380888d5f3Sdaniel else 7390888d5f3Sdaniel own_querier_enabled = true; 7400888d5f3Sdaniel } else { 7410888d5f3Sdaniel own_querier_enabled = false; 7420888d5f3Sdaniel } 7430888d5f3Sdaniel 744cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 7450888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 746cc0fdd80SLinus Lüssing } 747cc0fdd80SLinus Lüssing 748cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 749cc0fdd80SLinus Lüssing struct ethhdr *eth) 750cc0fdd80SLinus Lüssing { 751cc0fdd80SLinus Lüssing switch (eth->h_proto) { 752cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 7530888d5f3Sdaniel return __br_multicast_querier_exists(br, 7540888d5f3Sdaniel &br->ip4_other_query, false); 755cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 756cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 7570888d5f3Sdaniel return __br_multicast_querier_exists(br, 7580888d5f3Sdaniel &br->ip6_other_query, true); 759cc0fdd80SLinus Lüssing #endif 760cc0fdd80SLinus Lüssing default: 761cc0fdd80SLinus Lüssing return false; 762cc0fdd80SLinus Lüssing } 763b00589afSLinus Lüssing } 7641080ab95SNikolay Aleksandrov 7651080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 7661080ab95SNikolay Aleksandrov { 7671080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 7681080ab95SNikolay Aleksandrov } 769eb1d1641SHerbert Xu #else 770eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 771eb1d1641SHerbert Xu struct net_bridge_port *port, 77206499098SVlad Yasevich struct sk_buff *skb, 77306499098SVlad Yasevich u16 vid) 774eb1d1641SHerbert Xu { 775eb1d1641SHerbert Xu return 0; 776eb1d1641SHerbert Xu } 777eb1d1641SHerbert Xu 778eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 779fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 780eb1d1641SHerbert Xu { 781eb1d1641SHerbert Xu return NULL; 782eb1d1641SHerbert Xu } 783eb1d1641SHerbert Xu 7841080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 785eb1d1641SHerbert Xu { 7861080ab95SNikolay Aleksandrov return 0; 787eb1d1641SHerbert Xu } 788eb1d1641SHerbert Xu 789eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 790eb1d1641SHerbert Xu { 791eb1d1641SHerbert Xu } 792eb1d1641SHerbert Xu 793eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 794eb1d1641SHerbert Xu { 795eb1d1641SHerbert Xu } 796eb1d1641SHerbert Xu 797eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 798eb1d1641SHerbert Xu { 799eb1d1641SHerbert Xu } 800eb1d1641SHerbert Xu 801eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 802eb1d1641SHerbert Xu { 803eb1d1641SHerbert Xu } 804eb1d1641SHerbert Xu 805eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 806eb1d1641SHerbert Xu { 807eb1d1641SHerbert Xu } 808eb1d1641SHerbert Xu 809eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 810eb1d1641SHerbert Xu { 811eb1d1641SHerbert Xu } 8125cb5e947SHerbert Xu 813a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 814a7ce45a7SNikolay Aleksandrov { 815a7ce45a7SNikolay Aleksandrov } 816a7ce45a7SNikolay Aleksandrov 81737b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 81837b090e6SNikolay Aleksandrov struct sk_buff *skb, 81937b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 8205cb5e947SHerbert Xu { 8215cb5e947SHerbert Xu } 8225cb5e947SHerbert Xu 823eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 824eb1d1641SHerbert Xu { 82503aaa9e2SGustavo A. R. Silva return false; 826eb1d1641SHerbert Xu } 82737b090e6SNikolay Aleksandrov 828cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 829cc0fdd80SLinus Lüssing struct ethhdr *eth) 830b00589afSLinus Lüssing { 831b00589afSLinus Lüssing return false; 832b00589afSLinus Lüssing } 83337b090e6SNikolay Aleksandrov 834fdb184d1SRami Rosen static inline void br_mdb_init(void) 835fdb184d1SRami Rosen { 836fdb184d1SRami Rosen } 83737b090e6SNikolay Aleksandrov 838fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 839fdb184d1SRami Rosen { 840fdb184d1SRami Rosen } 8411080ab95SNikolay Aleksandrov 84219e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 84319e3a9c9SNikolay Aleksandrov { 84419e3a9c9SNikolay Aleksandrov return 0; 84519e3a9c9SNikolay Aleksandrov } 84619e3a9c9SNikolay Aleksandrov 84719e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 84819e3a9c9SNikolay Aleksandrov { 84919e3a9c9SNikolay Aleksandrov } 85019e3a9c9SNikolay Aleksandrov 8511080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 8521080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 853a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 854a65056ecSNikolay Aleksandrov u8 type, u8 dir) 8551080ab95SNikolay Aleksandrov { 8561080ab95SNikolay Aleksandrov } 8571080ab95SNikolay Aleksandrov 8581080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 8591080ab95SNikolay Aleksandrov { 8601080ab95SNikolay Aleksandrov return 0; 8611080ab95SNikolay Aleksandrov } 8621080ab95SNikolay Aleksandrov 863b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 864b6fe0440SIdo Schimmel { 865b6fe0440SIdo Schimmel } 866b6fe0440SIdo Schimmel 8671080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 8681080ab95SNikolay Aleksandrov { 8691080ab95SNikolay Aleksandrov return 0; 8701080ab95SNikolay Aleksandrov } 87185b35269SSridhar Samudrala #endif 872eb1d1641SHerbert Xu 873243a2e63SVlad Yasevich /* br_vlan.c */ 874243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 87577751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 87677751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 8772594e906SNikolay Aleksandrov u16 *vid); 87877751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 87985f46c6bSVlad Yasevich const struct sk_buff *skb); 880e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 881348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 88211538d03SRoopa Prabhu const struct net_bridge_port *port, 8832594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 88478851988SVlad Yasevich struct sk_buff *skb); 885f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 886169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 887348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 888348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 8892594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 890204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 891a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 892348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 893d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 894204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 8956dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 8969163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 8975be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 89896a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 899169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 900169327d5SPetr Machata struct netlink_ext_ack *extack); 901f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 902169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 903348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 904348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 905169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 9062594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 907a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 908a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 9099c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 910091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 9119c0ec2e7SMike Manning void *ptr); 912a37b85c9SVlad Yasevich 9132594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 914a37b85c9SVlad Yasevich const struct net_bridge *br) 915a37b85c9SVlad Yasevich { 916907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 917a37b85c9SVlad Yasevich } 918a37b85c9SVlad Yasevich 9192594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 920a37b85c9SVlad Yasevich const struct net_bridge_port *p) 921a37b85c9SVlad Yasevich { 922907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 923907b1e6eSNikolay Aleksandrov } 924907b1e6eSNikolay Aleksandrov 925907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 926907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 927907b1e6eSNikolay Aleksandrov { 928907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 929907b1e6eSNikolay Aleksandrov } 930907b1e6eSNikolay Aleksandrov 931907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 932907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 933907b1e6eSNikolay Aleksandrov { 934907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 935a37b85c9SVlad Yasevich } 936a37b85c9SVlad Yasevich 937a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 938a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 939a37b85c9SVlad Yasevich */ 940a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 941a37b85c9SVlad Yasevich { 942a37b85c9SVlad Yasevich int err = 0; 943a37b85c9SVlad Yasevich 9442594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 9455978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 9462594e906SNikolay Aleksandrov } else { 947a37b85c9SVlad Yasevich *vid = 0; 948a37b85c9SVlad Yasevich err = -EINVAL; 949a37b85c9SVlad Yasevich } 950a37b85c9SVlad Yasevich 951a37b85c9SVlad Yasevich return err; 952a37b85c9SVlad Yasevich } 95378851988SVlad Yasevich 95477751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 95578851988SVlad Yasevich { 95677751ee8SNikolay Aleksandrov if (!vg) 9575be5a2dfSVlad Yasevich return 0; 9585be5a2dfSVlad Yasevich 95978851988SVlad Yasevich smp_rmb(); 96077751ee8SNikolay Aleksandrov return vg->pvid; 96178851988SVlad Yasevich } 96278851988SVlad Yasevich 963243a2e63SVlad Yasevich #else 96477751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 96577751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 9662594e906SNikolay Aleksandrov struct sk_buff *skb, 9672594e906SNikolay Aleksandrov u16 *vid) 9682594e906SNikolay Aleksandrov { 9692594e906SNikolay Aleksandrov return true; 9702594e906SNikolay Aleksandrov } 9712594e906SNikolay Aleksandrov 9722594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 97385f46c6bSVlad Yasevich const struct sk_buff *skb) 97485f46c6bSVlad Yasevich { 97585f46c6bSVlad Yasevich return true; 97685f46c6bSVlad Yasevich } 97785f46c6bSVlad Yasevich 978e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 979e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 980e0d7968aSToshiaki Makita { 981e0d7968aSToshiaki Makita return true; 982e0d7968aSToshiaki Makita } 983e0d7968aSToshiaki Makita 98478851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 98511538d03SRoopa Prabhu const struct net_bridge_port *port, 9862594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 98778851988SVlad Yasevich struct sk_buff *skb) 98878851988SVlad Yasevich { 98978851988SVlad Yasevich return skb; 99078851988SVlad Yasevich } 99178851988SVlad Yasevich 992f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 993169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 994243a2e63SVlad Yasevich { 995f418af63SNikolay Aleksandrov *changed = false; 996243a2e63SVlad Yasevich return -EOPNOTSUPP; 997243a2e63SVlad Yasevich } 998243a2e63SVlad Yasevich 999243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 1000243a2e63SVlad Yasevich { 1001243a2e63SVlad Yasevich return -EOPNOTSUPP; 1002243a2e63SVlad Yasevich } 1003243a2e63SVlad Yasevich 1004243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1005243a2e63SVlad Yasevich { 1006243a2e63SVlad Yasevich } 1007243a2e63SVlad Yasevich 1008204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1009204177f3SToshiaki Makita { 1010204177f3SToshiaki Makita } 1011204177f3SToshiaki Makita 10125be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 10138580e211SToshiaki Makita { 10145be5a2dfSVlad Yasevich return 0; 10158580e211SToshiaki Makita } 10168580e211SToshiaki Makita 1017f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1018169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1019243a2e63SVlad Yasevich { 1020f418af63SNikolay Aleksandrov *changed = false; 1021243a2e63SVlad Yasevich return -EOPNOTSUPP; 1022243a2e63SVlad Yasevich } 1023243a2e63SVlad Yasevich 1024243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1025243a2e63SVlad Yasevich { 1026243a2e63SVlad Yasevich return -EOPNOTSUPP; 1027243a2e63SVlad Yasevich } 1028243a2e63SVlad Yasevich 1029243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1030243a2e63SVlad Yasevich { 1031243a2e63SVlad Yasevich } 1032243a2e63SVlad Yasevich 10332594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 10342594e906SNikolay Aleksandrov u16 vid) 1035a37b85c9SVlad Yasevich { 1036a37b85c9SVlad Yasevich return NULL; 1037a37b85c9SVlad Yasevich } 1038bc9a25d2SVlad Yasevich 1039169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1040169327d5SPetr Machata struct netlink_ext_ack *extack) 10415be5a2dfSVlad Yasevich { 10425be5a2dfSVlad Yasevich return 0; 10435be5a2dfSVlad Yasevich } 10445be5a2dfSVlad Yasevich 104578851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1046a37b85c9SVlad Yasevich { 1047a37b85c9SVlad Yasevich return 0; 1048a37b85c9SVlad Yasevich } 10492594e906SNikolay Aleksandrov 105077751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 105178851988SVlad Yasevich { 10523df6bf45SVlad Yasevich return 0; 105378851988SVlad Yasevich } 10542796d0c6SVlad Yasevich 1055a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1056a7854037SNikolay Aleksandrov unsigned long val) 1057a7854037SNikolay Aleksandrov { 1058a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1059a7854037SNikolay Aleksandrov } 10602594e906SNikolay Aleksandrov 10612594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 10622594e906SNikolay Aleksandrov u32 filter_mask) 10632594e906SNikolay Aleksandrov { 10642594e906SNikolay Aleksandrov return 0; 10652594e906SNikolay Aleksandrov } 10662594e906SNikolay Aleksandrov 10672594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 10682594e906SNikolay Aleksandrov const struct net_bridge *br) 10692594e906SNikolay Aleksandrov { 10702594e906SNikolay Aleksandrov return NULL; 10712594e906SNikolay Aleksandrov } 10722594e906SNikolay Aleksandrov 10732594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 10742594e906SNikolay Aleksandrov const struct net_bridge_port *p) 10752594e906SNikolay Aleksandrov { 10762594e906SNikolay Aleksandrov return NULL; 10772594e906SNikolay Aleksandrov } 1078907b1e6eSNikolay Aleksandrov 1079907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1080907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1081907b1e6eSNikolay Aleksandrov { 1082907b1e6eSNikolay Aleksandrov return NULL; 1083907b1e6eSNikolay Aleksandrov } 1084907b1e6eSNikolay Aleksandrov 1085907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1086907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1087907b1e6eSNikolay Aleksandrov { 1088907b1e6eSNikolay Aleksandrov return NULL; 1089907b1e6eSNikolay Aleksandrov } 1090a60c0903SNikolay Aleksandrov 1091a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1092a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1093a60c0903SNikolay Aleksandrov { 1094a60c0903SNikolay Aleksandrov } 10959c0ec2e7SMike Manning 10969c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 10979c0ec2e7SMike Manning unsigned long event) 10989c0ec2e7SMike Manning { 10999c0ec2e7SMike Manning } 11009c0ec2e7SMike Manning 1101091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 11029c0ec2e7SMike Manning unsigned long event, void *ptr) 11039c0ec2e7SMike Manning { 1104091adf9bSNikolay Aleksandrov return 0; 11059c0ec2e7SMike Manning } 1106243a2e63SVlad Yasevich #endif 1107243a2e63SVlad Yasevich 11081a4ba64dSPablo Neira Ayuso struct nf_br_ops { 11091a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 11101a4ba64dSPablo Neira Ayuso }; 11111a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 11121a4ba64dSPablo Neira Ayuso 11131da177e4SLinus Torvalds /* br_netfilter.c */ 111434666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 111534666d46SPablo Neira Ayuso int br_nf_core_init(void); 111634666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1117348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1118c0909713SStephen Hemminger #else 111934666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 112034666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 11214adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1122c0909713SStephen Hemminger #endif 11231da177e4SLinus Torvalds 11241da177e4SLinus Torvalds /* br_stp.c */ 1125775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1126348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1127348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1128348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 11291da177e4SLinus Torvalds 1130348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1131348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1132348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1133348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 113482dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 11359e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 113614f98f25Sstephen hemminger 113714f98f25Sstephen hemminger 11381da177e4SLinus Torvalds /* br_stp_if.c */ 1139348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1140348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1141348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 1142348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1143348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1144348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1145348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1146348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1147348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1148348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1149348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 11501da177e4SLinus Torvalds 11511da177e4SLinus Torvalds /* br_stp_bpdu.c */ 11527c85fbf0SPatrick McHardy struct stp_proto; 1153348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 11547c85fbf0SPatrick McHardy struct net_device *dev); 11551da177e4SLinus Torvalds 11561da177e4SLinus Torvalds /* br_stp_timer.c */ 1157348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1158348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1159348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 11601da177e4SLinus Torvalds 11611da177e4SLinus Torvalds /* br.c */ 1162e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1163da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1164da678292SMichał Mirosław #endif 11651da177e4SLinus Torvalds 116611dc1f36SStephen Hemminger /* br_netlink.c */ 1167149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1168348662a1SJoe Perches int br_netlink_init(void); 1169348662a1SJoe Perches void br_netlink_fini(void); 117092899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 117192899063SNikolay Aleksandrov const struct net_bridge_port *port); 11722fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 11732fd527b7SPetr Machata struct netlink_ext_ack *extack); 1174add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1175348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 117646c264daSNicolas Dichtel u32 filter_mask, int nlflags); 117711dc1f36SStephen Hemminger 11781da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 11791da177e4SLinus Torvalds /* br_sysfs_if.c */ 118052cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1181348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1182348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 11831da177e4SLinus Torvalds 11841da177e4SLinus Torvalds /* br_sysfs_br.c */ 1185348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1186348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 11871da177e4SLinus Torvalds 11881da177e4SLinus Torvalds #else 11891da177e4SLinus Torvalds 11900cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 11910cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 11920cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 11930cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 11941da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 11951da177e4SLinus Torvalds 11966bc506b4SIdo Schimmel /* br_switchdev.c */ 11976bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 11986bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 11996bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 12006bc506b4SIdo Schimmel struct sk_buff *skb); 12016bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 12026bc506b4SIdo Schimmel const struct sk_buff *skb); 12033922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 12043922285dSArkadi Sharshevsky unsigned long flags, 12053922285dSArkadi Sharshevsky unsigned long mask); 12066b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 12076b26b51bSArkadi Sharshevsky int type); 1208169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1209169327d5SPetr Machata struct netlink_ext_ack *extack); 1210d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1211f1c2eddfSIdo Schimmel 1212f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1213f1c2eddfSIdo Schimmel { 1214f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1215f1c2eddfSIdo Schimmel } 12166bc506b4SIdo Schimmel #else 12176bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 12186bc506b4SIdo Schimmel { 12196bc506b4SIdo Schimmel return 0; 12206bc506b4SIdo Schimmel } 12216bc506b4SIdo Schimmel 12226bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 12236bc506b4SIdo Schimmel struct sk_buff *skb) 12246bc506b4SIdo Schimmel { 12256bc506b4SIdo Schimmel } 12266bc506b4SIdo Schimmel 12276bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 12286bc506b4SIdo Schimmel const struct sk_buff *skb) 12296bc506b4SIdo Schimmel { 12306bc506b4SIdo Schimmel return true; 12316bc506b4SIdo Schimmel } 12323922285dSArkadi Sharshevsky 12333922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 12343922285dSArkadi Sharshevsky unsigned long flags, 12353922285dSArkadi Sharshevsky unsigned long mask) 12363922285dSArkadi Sharshevsky { 12373922285dSArkadi Sharshevsky return 0; 12383922285dSArkadi Sharshevsky } 12396b26b51bSArkadi Sharshevsky 1240d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1241169327d5SPetr Machata u16 vid, u16 flags, 1242169327d5SPetr Machata struct netlink_ext_ack *extack) 1243d66e4348SPetr Machata { 1244d66e4348SPetr Machata return -EOPNOTSUPP; 1245d66e4348SPetr Machata } 1246d66e4348SPetr Machata 1247d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1248d66e4348SPetr Machata { 1249d66e4348SPetr Machata return -EOPNOTSUPP; 1250d66e4348SPetr Machata } 1251d66e4348SPetr Machata 12526b26b51bSArkadi Sharshevsky static inline void 12536b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 12546b26b51bSArkadi Sharshevsky { 12556b26b51bSArkadi Sharshevsky } 1256f1c2eddfSIdo Schimmel 1257f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1258f1c2eddfSIdo Schimmel { 1259f1c2eddfSIdo Schimmel } 12606bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 12616bc506b4SIdo Schimmel 1262057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1263821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1264057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1265057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1266ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1267ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1268ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 12691da177e4SLinus Torvalds #endif 1270