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, 1816869c3b0SNikolay Aleksandrov }; 1826869c3b0SNikolay Aleksandrov 183eb793583SNikolay Aleksandrov struct net_bridge_fdb_key { 184eb793583SNikolay Aleksandrov mac_addr addr; 185eb793583SNikolay Aleksandrov u16 vlan_id; 186eb793583SNikolay Aleksandrov }; 187eb793583SNikolay Aleksandrov 1881214628cSNikolay Aleksandrov struct net_bridge_fdb_entry { 189eb793583SNikolay Aleksandrov struct rhash_head rhnode; 1901da177e4SLinus Torvalds struct net_bridge_port *dst; 1911da177e4SLinus Torvalds 192eb793583SNikolay Aleksandrov struct net_bridge_fdb_key key; 193eb793583SNikolay Aleksandrov struct hlist_node fdb_node; 1946869c3b0SNikolay Aleksandrov unsigned long flags; 195ac3ca6afSNikolay Aleksandrov unsigned char added_by_external_learn:1, 1969fe8bcecSArkadi Sharshevsky offloaded:1; 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 503ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 504ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 505ae75767eSNikolay Aleksandrov { 506ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 507ae75767eSNikolay Aleksandrov } 508ae75767eSNikolay Aleksandrov 509a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 510a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 511a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 512a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 513a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 514a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 515a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 516a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 517ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 518ae75767eSNikolay Aleksandrov 5191da177e4SLinus Torvalds /* br_device.c */ 520348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 521348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 522348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 523cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 52491d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 52591d2c34aSHerbert Xu struct sk_buff *skb) 52691d2c34aSHerbert Xu { 52791d2c34aSHerbert Xu struct netpoll *np = p->np; 52891d2c34aSHerbert Xu 52991d2c34aSHerbert Xu if (np) 53091d2c34aSHerbert Xu netpoll_send_skb(np, skb); 53191d2c34aSHerbert Xu } 53291d2c34aSHerbert Xu 533a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 534348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 53591d2c34aSHerbert Xu #else 5369f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 53791d2c34aSHerbert Xu struct sk_buff *skb) 53891d2c34aSHerbert Xu { 53991d2c34aSHerbert Xu } 54091d2c34aSHerbert Xu 541a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 54291d2c34aSHerbert Xu { 54391d2c34aSHerbert Xu return 0; 54491d2c34aSHerbert Xu } 54591d2c34aSHerbert Xu 54691d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 54791d2c34aSHerbert Xu { 54891d2c34aSHerbert Xu } 549cfb478daSstephen hemminger #endif 5501da177e4SLinus Torvalds 5511da177e4SLinus Torvalds /* br_fdb.c */ 552348662a1SJoe Perches int br_fdb_init(void); 553348662a1SJoe Perches void br_fdb_fini(void); 554eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 555eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 556348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 557424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 558424bb9c9SToshiaki Makita const struct net_bridge_port *p, 559424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 560348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 561348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 562f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 563348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 5641ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 565bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 566bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 567bfd0aeacSNikolay Aleksandrov __u16 vid); 568348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 569348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 570348662a1SJoe Perches unsigned long off); 571348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 572348662a1SJoe Perches const unsigned char *addr, u16 vid); 573348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 574a5642ab4SToshiaki Makita const unsigned char *addr, u16 vid, bool added_by_user); 57577162022SJohn Fastabend 576348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 577f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 578348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 57987b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 58087b0984eSPetr Machata struct netlink_ext_ack *extack); 581348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 582d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 58347674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 58447674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 58547674562SRoopa Prabhu struct netlink_ext_ack *extack); 5868db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 5878db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 5883aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 589161d82deSPetr Machata const unsigned char *addr, u16 vid, 590161d82deSPetr Machata bool swdev_notify); 5913aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 592161d82deSPetr Machata const unsigned char *addr, u16 vid, 593161d82deSPetr Machata bool swdev_notify); 5949fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 595e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 5961da177e4SLinus Torvalds 5971da177e4SLinus Torvalds /* br_forward.c */ 5988addd5e7SNikolay Aleksandrov enum br_pkt_type { 5998addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 6008addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 6018addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 6028addd5e7SNikolay Aleksandrov }; 6030c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 604b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 60537b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 6060c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 60737b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 6088addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 6091da177e4SLinus Torvalds 6107d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 6117d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 6127d850abdSNikolay Aleksandrov const struct sk_buff *skb) 6137d850abdSNikolay Aleksandrov { 6147d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 6157d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 6167d850abdSNikolay Aleksandrov } 6177d850abdSNikolay Aleksandrov 6181da177e4SLinus Torvalds /* br_if.c */ 619faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 620348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 621348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 622ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 623ca752be0SDavid Ahern struct netlink_ext_ack *extack); 624348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 625804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 626348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 627c8f44affSMichał Mirosław netdev_features_t features); 628e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 6292796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 6302756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 6311da177e4SLinus Torvalds 6321da177e4SLinus Torvalds /* br_input.c */ 6330c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 634348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 6351da177e4SLinus Torvalds 636859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 637859828c0SJiri Pirko { 638859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 639859828c0SJiri Pirko } 640859828c0SJiri Pirko 6414d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 6424d4fd361SPetr Machata { 6434d4fd361SPetr Machata return rcu_dereference_rtnl(dev->rx_handler) == br_handle_frame; 6444d4fd361SPetr Machata } 6454d4fd361SPetr Machata 646859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 647859828c0SJiri Pirko { 648859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 649859828c0SJiri Pirko } 650859828c0SJiri Pirko 6514d4fd361SPetr Machata static inline struct net_bridge_port * 6524d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 6534d4fd361SPetr Machata { 6544d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 6554d4fd361SPetr Machata } 6564d4fd361SPetr Machata 6571da177e4SLinus Torvalds /* br_ioctl.c */ 658348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 659348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 660348662a1SJoe Perches void __user *arg); 6611da177e4SLinus Torvalds 662eb1d1641SHerbert Xu /* br_multicast.c */ 663eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 664348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 665fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 666348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 667eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 6681080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 669348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 670348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 671348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 672348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 673348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 674348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 675e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 67637b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 67737b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 678348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 679348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 680348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 681348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 682348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 6835e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 684aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 685aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 686aa2ae3e7SNikolay Aleksandrov #endif 687348662a1SJoe Perches struct net_bridge_mdb_entry * 68819e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 689348662a1SJoe Perches struct net_bridge_mdb_entry * 69019e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 691348662a1SJoe Perches struct net_bridge_port_group * 692348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 693762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 6946db6f0eaSFelix Fietkau unsigned char flags, const unsigned char *src); 69519e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 69619e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 69745ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 69845ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 699949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 700949f1e39SSatish Ashok int type); 7011080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 702a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 7031080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 704b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 7051080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 7061080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 7071080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 70819e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 70919e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 7101bc844eeSNikolay Aleksandrov void br_multicast_host_join(struct net_bridge_mdb_entry *mp, bool notify); 7111bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 71285b35269SSridhar Samudrala 713cfd56754SCong Wang #define mlock_dereference(X, br) \ 714cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 715cfd56754SCong Wang 71685b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 71785b35269SSridhar Samudrala { 71885b35269SSridhar Samudrala return br->multicast_router == 2 || 71985b35269SSridhar Samudrala (br->multicast_router == 1 && 72085b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 72185b35269SSridhar Samudrala } 722b00589afSLinus Lüssing 723cc0fdd80SLinus Lüssing static inline bool 724cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 7250888d5f3Sdaniel struct bridge_mcast_other_query *querier, 7260888d5f3Sdaniel const bool is_ipv6) 727b00589afSLinus Lüssing { 7280888d5f3Sdaniel bool own_querier_enabled; 7290888d5f3Sdaniel 730675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 731675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 7320888d5f3Sdaniel own_querier_enabled = false; 7330888d5f3Sdaniel else 7340888d5f3Sdaniel own_querier_enabled = true; 7350888d5f3Sdaniel } else { 7360888d5f3Sdaniel own_querier_enabled = false; 7370888d5f3Sdaniel } 7380888d5f3Sdaniel 739cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 7400888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 741cc0fdd80SLinus Lüssing } 742cc0fdd80SLinus Lüssing 743cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 744cc0fdd80SLinus Lüssing struct ethhdr *eth) 745cc0fdd80SLinus Lüssing { 746cc0fdd80SLinus Lüssing switch (eth->h_proto) { 747cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 7480888d5f3Sdaniel return __br_multicast_querier_exists(br, 7490888d5f3Sdaniel &br->ip4_other_query, false); 750cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 751cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 7520888d5f3Sdaniel return __br_multicast_querier_exists(br, 7530888d5f3Sdaniel &br->ip6_other_query, true); 754cc0fdd80SLinus Lüssing #endif 755cc0fdd80SLinus Lüssing default: 756cc0fdd80SLinus Lüssing return false; 757cc0fdd80SLinus Lüssing } 758b00589afSLinus Lüssing } 7591080ab95SNikolay Aleksandrov 7601080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 7611080ab95SNikolay Aleksandrov { 7621080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 7631080ab95SNikolay Aleksandrov } 764eb1d1641SHerbert Xu #else 765eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 766eb1d1641SHerbert Xu struct net_bridge_port *port, 76706499098SVlad Yasevich struct sk_buff *skb, 76806499098SVlad Yasevich u16 vid) 769eb1d1641SHerbert Xu { 770eb1d1641SHerbert Xu return 0; 771eb1d1641SHerbert Xu } 772eb1d1641SHerbert Xu 773eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 774fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 775eb1d1641SHerbert Xu { 776eb1d1641SHerbert Xu return NULL; 777eb1d1641SHerbert Xu } 778eb1d1641SHerbert Xu 7791080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 780eb1d1641SHerbert Xu { 7811080ab95SNikolay Aleksandrov return 0; 782eb1d1641SHerbert Xu } 783eb1d1641SHerbert Xu 784eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 785eb1d1641SHerbert Xu { 786eb1d1641SHerbert Xu } 787eb1d1641SHerbert Xu 788eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 789eb1d1641SHerbert Xu { 790eb1d1641SHerbert Xu } 791eb1d1641SHerbert Xu 792eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 793eb1d1641SHerbert Xu { 794eb1d1641SHerbert Xu } 795eb1d1641SHerbert Xu 796eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 797eb1d1641SHerbert Xu { 798eb1d1641SHerbert Xu } 799eb1d1641SHerbert Xu 800eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 801eb1d1641SHerbert Xu { 802eb1d1641SHerbert Xu } 803eb1d1641SHerbert Xu 804eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 805eb1d1641SHerbert Xu { 806eb1d1641SHerbert Xu } 8075cb5e947SHerbert Xu 808a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 809a7ce45a7SNikolay Aleksandrov { 810a7ce45a7SNikolay Aleksandrov } 811a7ce45a7SNikolay Aleksandrov 81237b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 81337b090e6SNikolay Aleksandrov struct sk_buff *skb, 81437b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 8155cb5e947SHerbert Xu { 8165cb5e947SHerbert Xu } 8175cb5e947SHerbert Xu 818eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 819eb1d1641SHerbert Xu { 82003aaa9e2SGustavo A. R. Silva return false; 821eb1d1641SHerbert Xu } 82237b090e6SNikolay Aleksandrov 823cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 824cc0fdd80SLinus Lüssing struct ethhdr *eth) 825b00589afSLinus Lüssing { 826b00589afSLinus Lüssing return false; 827b00589afSLinus Lüssing } 82837b090e6SNikolay Aleksandrov 829fdb184d1SRami Rosen static inline void br_mdb_init(void) 830fdb184d1SRami Rosen { 831fdb184d1SRami Rosen } 83237b090e6SNikolay Aleksandrov 833fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 834fdb184d1SRami Rosen { 835fdb184d1SRami Rosen } 8361080ab95SNikolay Aleksandrov 83719e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 83819e3a9c9SNikolay Aleksandrov { 83919e3a9c9SNikolay Aleksandrov return 0; 84019e3a9c9SNikolay Aleksandrov } 84119e3a9c9SNikolay Aleksandrov 84219e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 84319e3a9c9SNikolay Aleksandrov { 84419e3a9c9SNikolay Aleksandrov } 84519e3a9c9SNikolay Aleksandrov 8461080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 8471080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 848a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 849a65056ecSNikolay Aleksandrov u8 type, u8 dir) 8501080ab95SNikolay Aleksandrov { 8511080ab95SNikolay Aleksandrov } 8521080ab95SNikolay Aleksandrov 8531080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 8541080ab95SNikolay Aleksandrov { 8551080ab95SNikolay Aleksandrov return 0; 8561080ab95SNikolay Aleksandrov } 8571080ab95SNikolay Aleksandrov 858b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 859b6fe0440SIdo Schimmel { 860b6fe0440SIdo Schimmel } 861b6fe0440SIdo Schimmel 8621080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 8631080ab95SNikolay Aleksandrov { 8641080ab95SNikolay Aleksandrov return 0; 8651080ab95SNikolay Aleksandrov } 86685b35269SSridhar Samudrala #endif 867eb1d1641SHerbert Xu 868243a2e63SVlad Yasevich /* br_vlan.c */ 869243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 87077751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 87177751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 8722594e906SNikolay Aleksandrov u16 *vid); 87377751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 87485f46c6bSVlad Yasevich const struct sk_buff *skb); 875e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 876348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 87711538d03SRoopa Prabhu const struct net_bridge_port *port, 8782594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 87978851988SVlad Yasevich struct sk_buff *skb); 880f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 881169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 882348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 883348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 8842594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 885204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 886a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 887348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 888d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 889204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 8906dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 8919163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 8925be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 89396a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 894169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 895169327d5SPetr Machata struct netlink_ext_ack *extack); 896f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 897169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 898348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 899348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 900169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 9012594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 902a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 903a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 9049c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 905091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 9069c0ec2e7SMike Manning void *ptr); 907a37b85c9SVlad Yasevich 9082594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 909a37b85c9SVlad Yasevich const struct net_bridge *br) 910a37b85c9SVlad Yasevich { 911907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 912a37b85c9SVlad Yasevich } 913a37b85c9SVlad Yasevich 9142594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 915a37b85c9SVlad Yasevich const struct net_bridge_port *p) 916a37b85c9SVlad Yasevich { 917907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 918907b1e6eSNikolay Aleksandrov } 919907b1e6eSNikolay Aleksandrov 920907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 921907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 922907b1e6eSNikolay Aleksandrov { 923907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 924907b1e6eSNikolay Aleksandrov } 925907b1e6eSNikolay Aleksandrov 926907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 927907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 928907b1e6eSNikolay Aleksandrov { 929907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 930a37b85c9SVlad Yasevich } 931a37b85c9SVlad Yasevich 932a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 933a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 934a37b85c9SVlad Yasevich */ 935a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 936a37b85c9SVlad Yasevich { 937a37b85c9SVlad Yasevich int err = 0; 938a37b85c9SVlad Yasevich 9392594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 9405978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 9412594e906SNikolay Aleksandrov } else { 942a37b85c9SVlad Yasevich *vid = 0; 943a37b85c9SVlad Yasevich err = -EINVAL; 944a37b85c9SVlad Yasevich } 945a37b85c9SVlad Yasevich 946a37b85c9SVlad Yasevich return err; 947a37b85c9SVlad Yasevich } 94878851988SVlad Yasevich 94977751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 95078851988SVlad Yasevich { 95177751ee8SNikolay Aleksandrov if (!vg) 9525be5a2dfSVlad Yasevich return 0; 9535be5a2dfSVlad Yasevich 95478851988SVlad Yasevich smp_rmb(); 95577751ee8SNikolay Aleksandrov return vg->pvid; 95678851988SVlad Yasevich } 95778851988SVlad Yasevich 958243a2e63SVlad Yasevich #else 95977751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 96077751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 9612594e906SNikolay Aleksandrov struct sk_buff *skb, 9622594e906SNikolay Aleksandrov u16 *vid) 9632594e906SNikolay Aleksandrov { 9642594e906SNikolay Aleksandrov return true; 9652594e906SNikolay Aleksandrov } 9662594e906SNikolay Aleksandrov 9672594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 96885f46c6bSVlad Yasevich const struct sk_buff *skb) 96985f46c6bSVlad Yasevich { 97085f46c6bSVlad Yasevich return true; 97185f46c6bSVlad Yasevich } 97285f46c6bSVlad Yasevich 973e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 974e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 975e0d7968aSToshiaki Makita { 976e0d7968aSToshiaki Makita return true; 977e0d7968aSToshiaki Makita } 978e0d7968aSToshiaki Makita 97978851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 98011538d03SRoopa Prabhu const struct net_bridge_port *port, 9812594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 98278851988SVlad Yasevich struct sk_buff *skb) 98378851988SVlad Yasevich { 98478851988SVlad Yasevich return skb; 98578851988SVlad Yasevich } 98678851988SVlad Yasevich 987f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 988169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 989243a2e63SVlad Yasevich { 990f418af63SNikolay Aleksandrov *changed = false; 991243a2e63SVlad Yasevich return -EOPNOTSUPP; 992243a2e63SVlad Yasevich } 993243a2e63SVlad Yasevich 994243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 995243a2e63SVlad Yasevich { 996243a2e63SVlad Yasevich return -EOPNOTSUPP; 997243a2e63SVlad Yasevich } 998243a2e63SVlad Yasevich 999243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1000243a2e63SVlad Yasevich { 1001243a2e63SVlad Yasevich } 1002243a2e63SVlad Yasevich 1003204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1004204177f3SToshiaki Makita { 1005204177f3SToshiaki Makita } 1006204177f3SToshiaki Makita 10075be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 10088580e211SToshiaki Makita { 10095be5a2dfSVlad Yasevich return 0; 10108580e211SToshiaki Makita } 10118580e211SToshiaki Makita 1012f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1013169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1014243a2e63SVlad Yasevich { 1015f418af63SNikolay Aleksandrov *changed = false; 1016243a2e63SVlad Yasevich return -EOPNOTSUPP; 1017243a2e63SVlad Yasevich } 1018243a2e63SVlad Yasevich 1019243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1020243a2e63SVlad Yasevich { 1021243a2e63SVlad Yasevich return -EOPNOTSUPP; 1022243a2e63SVlad Yasevich } 1023243a2e63SVlad Yasevich 1024243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1025243a2e63SVlad Yasevich { 1026243a2e63SVlad Yasevich } 1027243a2e63SVlad Yasevich 10282594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 10292594e906SNikolay Aleksandrov u16 vid) 1030a37b85c9SVlad Yasevich { 1031a37b85c9SVlad Yasevich return NULL; 1032a37b85c9SVlad Yasevich } 1033bc9a25d2SVlad Yasevich 1034169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1035169327d5SPetr Machata struct netlink_ext_ack *extack) 10365be5a2dfSVlad Yasevich { 10375be5a2dfSVlad Yasevich return 0; 10385be5a2dfSVlad Yasevich } 10395be5a2dfSVlad Yasevich 104078851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1041a37b85c9SVlad Yasevich { 1042a37b85c9SVlad Yasevich return 0; 1043a37b85c9SVlad Yasevich } 10442594e906SNikolay Aleksandrov 104577751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 104678851988SVlad Yasevich { 10473df6bf45SVlad Yasevich return 0; 104878851988SVlad Yasevich } 10492796d0c6SVlad Yasevich 1050a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1051a7854037SNikolay Aleksandrov unsigned long val) 1052a7854037SNikolay Aleksandrov { 1053a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1054a7854037SNikolay Aleksandrov } 10552594e906SNikolay Aleksandrov 10562594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 10572594e906SNikolay Aleksandrov u32 filter_mask) 10582594e906SNikolay Aleksandrov { 10592594e906SNikolay Aleksandrov return 0; 10602594e906SNikolay Aleksandrov } 10612594e906SNikolay Aleksandrov 10622594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 10632594e906SNikolay Aleksandrov const struct net_bridge *br) 10642594e906SNikolay Aleksandrov { 10652594e906SNikolay Aleksandrov return NULL; 10662594e906SNikolay Aleksandrov } 10672594e906SNikolay Aleksandrov 10682594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 10692594e906SNikolay Aleksandrov const struct net_bridge_port *p) 10702594e906SNikolay Aleksandrov { 10712594e906SNikolay Aleksandrov return NULL; 10722594e906SNikolay Aleksandrov } 1073907b1e6eSNikolay Aleksandrov 1074907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1075907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1076907b1e6eSNikolay Aleksandrov { 1077907b1e6eSNikolay Aleksandrov return NULL; 1078907b1e6eSNikolay Aleksandrov } 1079907b1e6eSNikolay Aleksandrov 1080907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1081907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1082907b1e6eSNikolay Aleksandrov { 1083907b1e6eSNikolay Aleksandrov return NULL; 1084907b1e6eSNikolay Aleksandrov } 1085a60c0903SNikolay Aleksandrov 1086a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1087a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1088a60c0903SNikolay Aleksandrov { 1089a60c0903SNikolay Aleksandrov } 10909c0ec2e7SMike Manning 10919c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 10929c0ec2e7SMike Manning unsigned long event) 10939c0ec2e7SMike Manning { 10949c0ec2e7SMike Manning } 10959c0ec2e7SMike Manning 1096091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 10979c0ec2e7SMike Manning unsigned long event, void *ptr) 10989c0ec2e7SMike Manning { 1099091adf9bSNikolay Aleksandrov return 0; 11009c0ec2e7SMike Manning } 1101243a2e63SVlad Yasevich #endif 1102243a2e63SVlad Yasevich 11031a4ba64dSPablo Neira Ayuso struct nf_br_ops { 11041a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 11051a4ba64dSPablo Neira Ayuso }; 11061a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 11071a4ba64dSPablo Neira Ayuso 11081da177e4SLinus Torvalds /* br_netfilter.c */ 110934666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 111034666d46SPablo Neira Ayuso int br_nf_core_init(void); 111134666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1112348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1113c0909713SStephen Hemminger #else 111434666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 111534666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 11164adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1117c0909713SStephen Hemminger #endif 11181da177e4SLinus Torvalds 11191da177e4SLinus Torvalds /* br_stp.c */ 1120775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1121348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1122348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1123348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 11241da177e4SLinus Torvalds 1125348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1126348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1127348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1128348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 112982dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 11309e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 113114f98f25Sstephen hemminger 113214f98f25Sstephen hemminger 11331da177e4SLinus Torvalds /* br_stp_if.c */ 1134348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1135348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1136348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 1137348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1138348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1139348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1140348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1141348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1142348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1143348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1144348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 11451da177e4SLinus Torvalds 11461da177e4SLinus Torvalds /* br_stp_bpdu.c */ 11477c85fbf0SPatrick McHardy struct stp_proto; 1148348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 11497c85fbf0SPatrick McHardy struct net_device *dev); 11501da177e4SLinus Torvalds 11511da177e4SLinus Torvalds /* br_stp_timer.c */ 1152348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1153348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1154348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 11551da177e4SLinus Torvalds 11561da177e4SLinus Torvalds /* br.c */ 1157e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1158da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1159da678292SMichał Mirosław #endif 11601da177e4SLinus Torvalds 116111dc1f36SStephen Hemminger /* br_netlink.c */ 1162149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1163348662a1SJoe Perches int br_netlink_init(void); 1164348662a1SJoe Perches void br_netlink_fini(void); 116592899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 116692899063SNikolay Aleksandrov const struct net_bridge_port *port); 11672fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 11682fd527b7SPetr Machata struct netlink_ext_ack *extack); 1169add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1170348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 117146c264daSNicolas Dichtel u32 filter_mask, int nlflags); 117211dc1f36SStephen Hemminger 11731da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 11741da177e4SLinus Torvalds /* br_sysfs_if.c */ 117552cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1176348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1177348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 11781da177e4SLinus Torvalds 11791da177e4SLinus Torvalds /* br_sysfs_br.c */ 1180348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1181348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 11821da177e4SLinus Torvalds 11831da177e4SLinus Torvalds #else 11841da177e4SLinus Torvalds 11850cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 11860cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 11870cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 11880cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 11891da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 11901da177e4SLinus Torvalds 11916bc506b4SIdo Schimmel /* br_switchdev.c */ 11926bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 11936bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 11946bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 11956bc506b4SIdo Schimmel struct sk_buff *skb); 11966bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 11976bc506b4SIdo Schimmel const struct sk_buff *skb); 11983922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 11993922285dSArkadi Sharshevsky unsigned long flags, 12003922285dSArkadi Sharshevsky unsigned long mask); 12016b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 12026b26b51bSArkadi Sharshevsky int type); 1203169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1204169327d5SPetr Machata struct netlink_ext_ack *extack); 1205d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1206f1c2eddfSIdo Schimmel 1207f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1208f1c2eddfSIdo Schimmel { 1209f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1210f1c2eddfSIdo Schimmel } 12116bc506b4SIdo Schimmel #else 12126bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 12136bc506b4SIdo Schimmel { 12146bc506b4SIdo Schimmel return 0; 12156bc506b4SIdo Schimmel } 12166bc506b4SIdo Schimmel 12176bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 12186bc506b4SIdo Schimmel struct sk_buff *skb) 12196bc506b4SIdo Schimmel { 12206bc506b4SIdo Schimmel } 12216bc506b4SIdo Schimmel 12226bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 12236bc506b4SIdo Schimmel const struct sk_buff *skb) 12246bc506b4SIdo Schimmel { 12256bc506b4SIdo Schimmel return true; 12266bc506b4SIdo Schimmel } 12273922285dSArkadi Sharshevsky 12283922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 12293922285dSArkadi Sharshevsky unsigned long flags, 12303922285dSArkadi Sharshevsky unsigned long mask) 12313922285dSArkadi Sharshevsky { 12323922285dSArkadi Sharshevsky return 0; 12333922285dSArkadi Sharshevsky } 12346b26b51bSArkadi Sharshevsky 1235d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1236169327d5SPetr Machata u16 vid, u16 flags, 1237169327d5SPetr Machata struct netlink_ext_ack *extack) 1238d66e4348SPetr Machata { 1239d66e4348SPetr Machata return -EOPNOTSUPP; 1240d66e4348SPetr Machata } 1241d66e4348SPetr Machata 1242d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1243d66e4348SPetr Machata { 1244d66e4348SPetr Machata return -EOPNOTSUPP; 1245d66e4348SPetr Machata } 1246d66e4348SPetr Machata 12476b26b51bSArkadi Sharshevsky static inline void 12486b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 12496b26b51bSArkadi Sharshevsky { 12506b26b51bSArkadi Sharshevsky } 1251f1c2eddfSIdo Schimmel 1252f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1253f1c2eddfSIdo Schimmel { 1254f1c2eddfSIdo Schimmel } 12556bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 12566bc506b4SIdo Schimmel 1257057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1258821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1259057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1260057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1261ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1262ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1263ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 12641da177e4SLinus Torvalds #endif 1265