11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * Linux ethernet bridge 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Authors: 51da177e4SLinus Torvalds * Lennert Buytenhek <buytenh@gnu.org> 61da177e4SLinus Torvalds * 71da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or 81da177e4SLinus Torvalds * modify it under the terms of the GNU General Public License 91da177e4SLinus Torvalds * as published by the Free Software Foundation; either version 101da177e4SLinus Torvalds * 2 of the License, or (at your option) any later version. 111da177e4SLinus Torvalds */ 121da177e4SLinus Torvalds 131da177e4SLinus Torvalds #ifndef _BR_PRIVATE_H 141da177e4SLinus Torvalds #define _BR_PRIVATE_H 151da177e4SLinus Torvalds 161da177e4SLinus Torvalds #include <linux/netdevice.h> 171da177e4SLinus Torvalds #include <linux/if_bridge.h> 1891d2c34aSHerbert Xu #include <linux/netpoll.h> 19406818ffSEric Dumazet #include <linux/u64_stats_sync.h> 204adf0af6SSimon Wunderlich #include <net/route.h> 21efb6de9bSBernhard Thaler #include <net/ip6_fib.h> 22243a2e63SVlad Yasevich #include <linux/if_vlan.h> 232594e906SNikolay Aleksandrov #include <linux/rhashtable.h> 2425127759SReshetova, Elena #include <linux/refcount.h> 251da177e4SLinus Torvalds 261da177e4SLinus Torvalds #define BR_HASH_BITS 8 271da177e4SLinus Torvalds #define BR_HASH_SIZE (1 << BR_HASH_BITS) 281da177e4SLinus Torvalds 291da177e4SLinus Torvalds #define BR_HOLD_TIME (1*HZ) 301da177e4SLinus Torvalds 311da177e4SLinus Torvalds #define BR_PORT_BITS 10 321da177e4SLinus Torvalds #define BR_MAX_PORTS (1<<BR_PORT_BITS) 331da177e4SLinus Torvalds 34d08c6bc0SNikolay Aleksandrov #define BR_MULTICAST_DEFAULT_HASH_MAX 4096 35d08c6bc0SNikolay Aleksandrov 369cde0708SStephen Hemminger #define BR_VERSION "2.3" 379cde0708SStephen Hemminger 38515853ccSstephen hemminger /* Control of forwarding link local multicast */ 39515853ccSstephen hemminger #define BR_GROUPFWD_DEFAULT 0 40784b58a3SBernhard Thaler /* Don't allow forwarding of control protocols like STP, MAC PAUSE and LACP */ 415af48b59SNikolay Aleksandrov enum { 425af48b59SNikolay Aleksandrov BR_GROUPFWD_STP = BIT(0), 435af48b59SNikolay Aleksandrov BR_GROUPFWD_MACPAUSE = BIT(1), 445af48b59SNikolay Aleksandrov BR_GROUPFWD_LACP = BIT(2), 455af48b59SNikolay Aleksandrov }; 465af48b59SNikolay Aleksandrov 475af48b59SNikolay Aleksandrov #define BR_GROUPFWD_RESTRICTED (BR_GROUPFWD_STP | BR_GROUPFWD_MACPAUSE | \ 485af48b59SNikolay Aleksandrov BR_GROUPFWD_LACP) 49f2808d22SToshiaki Makita /* The Nearest Customer Bridge Group Address, 01-80-C2-00-00-[00,0B,0C,0D,0F] */ 50f2808d22SToshiaki Makita #define BR_GROUPFWD_8021AD 0xB801u 51515853ccSstephen hemminger 529cde0708SStephen Hemminger /* Path to usermode spanning tree program */ 539cde0708SStephen Hemminger #define BR_STP_PROG "/sbin/bridge-stp" 548cbb512eSStephen Hemminger 551da177e4SLinus Torvalds typedef struct bridge_id bridge_id; 561da177e4SLinus Torvalds typedef struct mac_addr mac_addr; 571da177e4SLinus Torvalds typedef __u16 port_id; 581da177e4SLinus Torvalds 591c1cb6d0SNikolay Aleksandrov struct bridge_id { 601da177e4SLinus Torvalds unsigned char prio[2]; 61e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 621da177e4SLinus Torvalds }; 631da177e4SLinus Torvalds 641c1cb6d0SNikolay Aleksandrov struct mac_addr { 65e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 661da177e4SLinus Torvalds }; 671da177e4SLinus Torvalds 68cc0fdd80SLinus Lüssing #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 69cc0fdd80SLinus Lüssing /* our own querier */ 7090010b36SLinus Lüssing struct bridge_mcast_own_query { 71cc0fdd80SLinus Lüssing struct timer_list timer; 72cc0fdd80SLinus Lüssing u32 startup_sent; 73cc0fdd80SLinus Lüssing }; 74cc0fdd80SLinus Lüssing 75cc0fdd80SLinus Lüssing /* other querier */ 7690010b36SLinus Lüssing struct bridge_mcast_other_query { 77cc0fdd80SLinus Lüssing struct timer_list timer; 78cc0fdd80SLinus Lüssing unsigned long delay_time; 79cc0fdd80SLinus Lüssing }; 80dc4eb53aSLinus Lüssing 81dc4eb53aSLinus Lüssing /* selected querier */ 82dc4eb53aSLinus Lüssing struct bridge_mcast_querier { 83dc4eb53aSLinus Lüssing struct br_ip addr; 842cd41431SLinus Lüssing struct net_bridge_port __rcu *port; 85dc4eb53aSLinus Lüssing }; 861080ab95SNikolay Aleksandrov 871080ab95SNikolay Aleksandrov /* IGMP/MLD statistics */ 881080ab95SNikolay Aleksandrov struct bridge_mcast_stats { 891080ab95SNikolay Aleksandrov struct br_mcast_stats mstats; 901080ab95SNikolay Aleksandrov struct u64_stats_sync syncp; 911080ab95SNikolay Aleksandrov }; 92cc0fdd80SLinus Lüssing #endif 93cc0fdd80SLinus Lüssing 946dada9b1SNikolay Aleksandrov struct br_vlan_stats { 956dada9b1SNikolay Aleksandrov u64 rx_bytes; 966dada9b1SNikolay Aleksandrov u64 rx_packets; 976dada9b1SNikolay Aleksandrov u64 tx_bytes; 986dada9b1SNikolay Aleksandrov u64 tx_packets; 996dada9b1SNikolay Aleksandrov struct u64_stats_sync syncp; 1006dada9b1SNikolay Aleksandrov }; 1016dada9b1SNikolay Aleksandrov 102efa5356bSRoopa Prabhu struct br_tunnel_info { 103efa5356bSRoopa Prabhu __be64 tunnel_id; 104efa5356bSRoopa Prabhu struct metadata_dst *tunnel_dst; 105efa5356bSRoopa Prabhu }; 106efa5356bSRoopa Prabhu 1079d332e69SNikolay Aleksandrov /* private vlan flags */ 1089d332e69SNikolay Aleksandrov enum { 1099d332e69SNikolay Aleksandrov BR_VLFLAG_PER_PORT_STATS = BIT(0), 1109d332e69SNikolay Aleksandrov }; 1119d332e69SNikolay Aleksandrov 1122594e906SNikolay Aleksandrov /** 1132594e906SNikolay Aleksandrov * struct net_bridge_vlan - per-vlan entry 1142594e906SNikolay Aleksandrov * 1152594e906SNikolay Aleksandrov * @vnode: rhashtable member 1162594e906SNikolay Aleksandrov * @vid: VLAN id 1172594e906SNikolay Aleksandrov * @flags: bridge vlan flags 1189d332e69SNikolay Aleksandrov * @priv_flags: private (in-kernel) bridge vlan flags 1196dada9b1SNikolay Aleksandrov * @stats: per-cpu VLAN statistics 1202594e906SNikolay Aleksandrov * @br: if MASTER flag set, this points to a bridge struct 1212594e906SNikolay Aleksandrov * @port: if MASTER flag unset, this points to a port struct 1222594e906SNikolay Aleksandrov * @refcnt: if MASTER flag set, this is bumped for each port referencing it 1232594e906SNikolay Aleksandrov * @brvlan: if MASTER flag unset, this points to the global per-VLAN context 1242594e906SNikolay Aleksandrov * for this VLAN entry 1252594e906SNikolay Aleksandrov * @vlist: sorted list of VLAN entries 1262594e906SNikolay Aleksandrov * @rcu: used for entry destruction 1272594e906SNikolay Aleksandrov * 1282594e906SNikolay Aleksandrov * This structure is shared between the global per-VLAN entries contained in 1292594e906SNikolay Aleksandrov * the bridge rhashtable and the local per-port per-VLAN entries contained in 1302594e906SNikolay Aleksandrov * the port's rhashtable. The union entries should be interpreted depending on 1312594e906SNikolay Aleksandrov * the entry flags that are set. 1322594e906SNikolay Aleksandrov */ 1332594e906SNikolay Aleksandrov struct net_bridge_vlan { 1342594e906SNikolay Aleksandrov struct rhash_head vnode; 135efa5356bSRoopa Prabhu struct rhash_head tnode; 1362594e906SNikolay Aleksandrov u16 vid; 1372594e906SNikolay Aleksandrov u16 flags; 1389d332e69SNikolay Aleksandrov u16 priv_flags; 1396dada9b1SNikolay Aleksandrov struct br_vlan_stats __percpu *stats; 140243a2e63SVlad Yasevich union { 141243a2e63SVlad Yasevich struct net_bridge *br; 1422594e906SNikolay Aleksandrov struct net_bridge_port *port; 1432594e906SNikolay Aleksandrov }; 1442594e906SNikolay Aleksandrov union { 14525127759SReshetova, Elena refcount_t refcnt; 1462594e906SNikolay Aleksandrov struct net_bridge_vlan *brvlan; 1472594e906SNikolay Aleksandrov }; 148efa5356bSRoopa Prabhu 149efa5356bSRoopa Prabhu struct br_tunnel_info tinfo; 150efa5356bSRoopa Prabhu 1512594e906SNikolay Aleksandrov struct list_head vlist; 1522594e906SNikolay Aleksandrov 153243a2e63SVlad Yasevich struct rcu_head rcu; 1542594e906SNikolay Aleksandrov }; 1552594e906SNikolay Aleksandrov 1562594e906SNikolay Aleksandrov /** 1572594e906SNikolay Aleksandrov * struct net_bridge_vlan_group 1582594e906SNikolay Aleksandrov * 1592594e906SNikolay Aleksandrov * @vlan_hash: VLAN entry rhashtable 1602594e906SNikolay Aleksandrov * @vlan_list: sorted VLAN entry list 1612594e906SNikolay Aleksandrov * @num_vlans: number of total VLAN entries 16277751ee8SNikolay Aleksandrov * @pvid: PVID VLAN id 1632594e906SNikolay Aleksandrov * 1642594e906SNikolay Aleksandrov * IMPORTANT: Be careful when checking if there're VLAN entries using list 1652594e906SNikolay Aleksandrov * primitives because the bridge can have entries in its list which 1662594e906SNikolay Aleksandrov * are just for global context but not for filtering, i.e. they have 1672594e906SNikolay Aleksandrov * the master flag set but not the brentry flag. If you have to check 1682594e906SNikolay Aleksandrov * if there're "real" entries in the bridge please test @num_vlans 1692594e906SNikolay Aleksandrov */ 1702594e906SNikolay Aleksandrov struct net_bridge_vlan_group { 1712594e906SNikolay Aleksandrov struct rhashtable vlan_hash; 172efa5356bSRoopa Prabhu struct rhashtable tunnel_hash; 1732594e906SNikolay Aleksandrov struct list_head vlan_list; 1746cbdceebSVlad Yasevich u16 num_vlans; 17577751ee8SNikolay Aleksandrov u16 pvid; 176243a2e63SVlad Yasevich }; 177243a2e63SVlad Yasevich 178eb793583SNikolay Aleksandrov struct net_bridge_fdb_key { 179eb793583SNikolay Aleksandrov mac_addr addr; 180eb793583SNikolay Aleksandrov u16 vlan_id; 181eb793583SNikolay Aleksandrov }; 182eb793583SNikolay Aleksandrov 1831214628cSNikolay Aleksandrov struct net_bridge_fdb_entry { 184eb793583SNikolay Aleksandrov struct rhash_head rhnode; 1851da177e4SLinus Torvalds struct net_bridge_port *dst; 1861da177e4SLinus Torvalds 187eb793583SNikolay Aleksandrov struct net_bridge_fdb_key key; 188eb793583SNikolay Aleksandrov struct hlist_node fdb_node; 18993859b13SJiri Pirko unsigned char is_local:1, 19093859b13SJiri Pirko is_static:1, 191435f2e7cSNikolay Aleksandrov is_sticky:1, 192cf6b8e1eSScott Feldman added_by_user:1, 1939fe8bcecSArkadi Sharshevsky added_by_external_learn:1, 1949fe8bcecSArkadi Sharshevsky offloaded:1; 1951214628cSNikolay Aleksandrov 1961214628cSNikolay Aleksandrov /* write-heavy members should not affect lookups */ 1971214628cSNikolay Aleksandrov unsigned long updated ____cacheline_aligned_in_smp; 1981214628cSNikolay Aleksandrov unsigned long used; 1991214628cSNikolay Aleksandrov 200b22fbf22SNikolay Aleksandrov struct rcu_head rcu; 2011da177e4SLinus Torvalds }; 2021da177e4SLinus Torvalds 2039d06b6d8SElad Raz #define MDB_PG_FLAGS_PERMANENT BIT(0) 2049d06b6d8SElad Raz #define MDB_PG_FLAGS_OFFLOAD BIT(1) 2059d06b6d8SElad Raz 206eb1d1641SHerbert Xu struct net_bridge_port_group { 207eb1d1641SHerbert Xu struct net_bridge_port *port; 208e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 209eb1d1641SHerbert Xu struct hlist_node mglist; 210eb1d1641SHerbert Xu struct rcu_head rcu; 211eb1d1641SHerbert Xu struct timer_list timer; 2128ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 2139d06b6d8SElad Raz unsigned char flags; 2146db6f0eaSFelix Fietkau unsigned char eth_addr[ETH_ALEN]; 215eb1d1641SHerbert Xu }; 216eb1d1641SHerbert Xu 2171c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_entry { 21819e3a9c9SNikolay Aleksandrov struct rhash_head rhnode; 219eb1d1641SHerbert Xu struct net_bridge *br; 220e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 221eb1d1641SHerbert Xu struct rcu_head rcu; 222eb1d1641SHerbert Xu struct timer_list timer; 2238ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 224ff0fd34eSAndrew Lunn bool host_joined; 22519e3a9c9SNikolay Aleksandrov struct hlist_node mdb_node; 226eb1d1641SHerbert Xu }; 227eb1d1641SHerbert Xu 2281f90c7f3SNikolay Aleksandrov struct net_bridge_port { 2291da177e4SLinus Torvalds struct net_bridge *br; 2301da177e4SLinus Torvalds struct net_device *dev; 2311da177e4SLinus Torvalds struct list_head list; 2321da177e4SLinus Torvalds 2331f90c7f3SNikolay Aleksandrov unsigned long flags; 2341f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 2351f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 2361f90c7f3SNikolay Aleksandrov #endif 2372756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 2381f90c7f3SNikolay Aleksandrov 2391da177e4SLinus Torvalds /* STP */ 2401da177e4SLinus Torvalds u8 priority; 2411da177e4SLinus Torvalds u8 state; 2421da177e4SLinus Torvalds u16 port_no; 2431da177e4SLinus Torvalds unsigned char topology_change_ack; 2441da177e4SLinus Torvalds unsigned char config_pending; 2451da177e4SLinus Torvalds port_id port_id; 2461da177e4SLinus Torvalds port_id designated_port; 2471da177e4SLinus Torvalds bridge_id designated_root; 2481da177e4SLinus Torvalds bridge_id designated_bridge; 2491da177e4SLinus Torvalds u32 path_cost; 2501da177e4SLinus Torvalds u32 designated_cost; 2510c03150eSstephen hemminger unsigned long designated_age; 2521da177e4SLinus Torvalds 2531da177e4SLinus Torvalds struct timer_list forward_delay_timer; 2541da177e4SLinus Torvalds struct timer_list hold_timer; 2551da177e4SLinus Torvalds struct timer_list message_age_timer; 2561da177e4SLinus Torvalds struct kobject kobj; 2571da177e4SLinus Torvalds struct rcu_head rcu; 2583982d3d2SFischer, Anna 259eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 26090010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 261cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 26290010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 263cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 264eb1d1641SHerbert Xu unsigned char multicast_router; 2651080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 266eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 267eb1d1641SHerbert Xu struct hlist_head mglist; 268eb1d1641SHerbert Xu struct hlist_node rlist; 269eb1d1641SHerbert Xu #endif 270e0f43752SSimon Arlott 271e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 272e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 273e0f43752SSimon Arlott #endif 27491d2c34aSHerbert Xu 27591d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 27691d2c34aSHerbert Xu struct netpoll *np; 27791d2c34aSHerbert Xu #endif 2786bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 2796bc506b4SIdo Schimmel int offload_fwd_mark; 2806bc506b4SIdo Schimmel #endif 2815af48b59SNikolay Aleksandrov u16 group_fwd_mask; 2822756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 2831da177e4SLinus Torvalds }; 2841da177e4SLinus Torvalds 285705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 286705e0deaSTyler Hicks 287e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 288f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 289e028e4b8SVlad Yasevich 290f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 291f350a0a8SJiri Pirko 292b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 293b5ed54e9Sstephen hemminger { 294716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 295b5ed54e9Sstephen hemminger } 296b5ed54e9Sstephen hemminger 2971fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 298b5ed54e9Sstephen hemminger { 299ec1e5610SEric Dumazet return br_port_exists(dev) ? 300ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 301b5ed54e9Sstephen hemminger } 302b5ed54e9Sstephen hemminger 3030baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 3040baa10ffSArkadi Sharshevsky { 3050baa10ffSArkadi Sharshevsky return br_port_exists(dev) ? 3060baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3070baa10ffSArkadi Sharshevsky } 3080baa10ffSArkadi Sharshevsky 309ae75767eSNikolay Aleksandrov enum net_bridge_opts { 310ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 311ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 3128df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 3138df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 3148df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 315be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 31613cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 317675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 318675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 319675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 320675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 321c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 3223341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 3239163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 32470e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 325ae75767eSNikolay Aleksandrov }; 326ae75767eSNikolay Aleksandrov 3271f90c7f3SNikolay Aleksandrov struct net_bridge { 3281da177e4SLinus Torvalds spinlock_t lock; 3291f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 3301da177e4SLinus Torvalds struct list_head port_list; 3311da177e4SLinus Torvalds struct net_device *dev; 3328f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 333ae75767eSNikolay Aleksandrov unsigned long options; 3341f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3351f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3361f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3371f90c7f3SNikolay Aleksandrov u16 default_pvid; 3381f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3391f90c7f3SNikolay Aleksandrov #endif 3401f90c7f3SNikolay Aleksandrov 341eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 34234666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 343efb6de9bSBernhard Thaler union { 3444adf0af6SSimon Wunderlich struct rtable fake_rtable; 345efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 346efb6de9bSBernhard Thaler }; 3474adf0af6SSimon Wunderlich #endif 348515853ccSstephen hemminger u16 group_fwd_mask; 349f2808d22SToshiaki Makita u16 group_fwd_mask_required; 350515853ccSstephen hemminger 3511da177e4SLinus Torvalds /* STP */ 3521da177e4SLinus Torvalds bridge_id designated_root; 3531da177e4SLinus Torvalds bridge_id bridge_id; 3541f90c7f3SNikolay Aleksandrov unsigned char topology_change; 3551f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 3561f90c7f3SNikolay Aleksandrov u16 root_port; 3571da177e4SLinus Torvalds unsigned long max_age; 3581da177e4SLinus Torvalds unsigned long hello_time; 3591da177e4SLinus Torvalds unsigned long forward_delay; 3601da177e4SLinus Torvalds unsigned long ageing_time; 36134d8acd8SVivien Didelot unsigned long bridge_max_age; 3621da177e4SLinus Torvalds unsigned long bridge_hello_time; 3631da177e4SLinus Torvalds unsigned long bridge_forward_delay; 36434d8acd8SVivien Didelot unsigned long bridge_ageing_time; 36535750b0bSNikolay Aleksandrov u32 root_path_cost; 3661da177e4SLinus Torvalds 367fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 3689cde0708SStephen Hemminger 3699cde0708SStephen Hemminger enum { 3709cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 3719cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 3729cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 3739cde0708SStephen Hemminger } stp_enabled; 3749cde0708SStephen Hemminger 375eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 376eb1d1641SHerbert Xu 377eb1d1641SHerbert Xu u32 hash_max; 378eb1d1641SHerbert Xu 379eb1d1641SHerbert Xu u32 multicast_last_member_count; 380eb1d1641SHerbert Xu u32 multicast_startup_query_count; 381eb1d1641SHerbert Xu 3825e923585SNikolay Aleksandrov u8 multicast_igmp_version; 383675779adSNikolay Aleksandrov u8 multicast_router; 384675779adSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 385675779adSNikolay Aleksandrov u8 multicast_mld_version; 386675779adSNikolay Aleksandrov #endif 38735750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 388eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 389eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 390eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 391eb1d1641SHerbert Xu unsigned long multicast_query_interval; 392eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 393eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 394eb1d1641SHerbert Xu 39519e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 39619e3a9c9SNikolay Aleksandrov 39719e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 398eb1d1641SHerbert Xu struct hlist_head router_list; 399eb1d1641SHerbert Xu 400eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 40190010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 40290010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 403dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 4041080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 405cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 40690010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 40790010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 408dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 409cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 410eb1d1641SHerbert Xu #endif 411eb1d1641SHerbert Xu 4121da177e4SLinus Torvalds struct timer_list hello_timer; 4131da177e4SLinus Torvalds struct timer_list tcn_timer; 4141da177e4SLinus Torvalds struct timer_list topology_change_timer; 415f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 41643b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 417e028e4b8SVlad Yasevich u32 auto_cnt; 4186bc506b4SIdo Schimmel 4196bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4206bc506b4SIdo Schimmel int offload_fwd_mark; 4216bc506b4SIdo Schimmel #endif 422eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4231da177e4SLinus Torvalds }; 4241da177e4SLinus Torvalds 42568b7c895SHerbert Xu struct br_input_skb_cb { 42668b7c895SHerbert Xu struct net_device *brdev; 42793fdd47eSHerbert Xu 42832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 429eb1d1641SHerbert Xu int igmp; 430eb1d1641SHerbert Xu int mrouters_only; 43132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 43293fdd47eSHerbert Xu 433842a9ae0SJouni Malinen bool proxyarp_replied; 4347d850abdSNikolay Aleksandrov bool src_port_isolated; 43593fdd47eSHerbert Xu 43620adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 43720adfa1aSVlad Yasevich bool vlan_filtered; 43820adfa1aSVlad Yasevich #endif 4396bc506b4SIdo Schimmel 4406bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4416bc506b4SIdo Schimmel int offload_fwd_mark; 4426bc506b4SIdo Schimmel #endif 44368b7c895SHerbert Xu }; 44468b7c895SHerbert Xu 44568b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 44668b7c895SHerbert Xu 44732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 44832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 44932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 45032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 45132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 45232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 45328a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 45428a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 45528a16c97Sstephen hemminger 45628a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 45728a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 45828a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 45928a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 46028a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 46128a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 46228a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 46328a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 46428a16c97Sstephen hemminger 46528a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 46628a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 46728a16c97Sstephen hemminger 4681da177e4SLinus Torvalds /* called under bridge lock */ 4691da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 4701da177e4SLinus Torvalds { 4711da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 4721da177e4SLinus Torvalds } 4731da177e4SLinus Torvalds 4742594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 4752594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 4762594e906SNikolay Aleksandrov { 4772594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 4782594e906SNikolay Aleksandrov } 4792594e906SNikolay Aleksandrov 4802594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 4812594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 4822594e906SNikolay Aleksandrov { 4832594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 4842594e906SNikolay Aleksandrov } 4852594e906SNikolay Aleksandrov 4866be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 4872594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 4882594e906SNikolay Aleksandrov { 4892594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 4902594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 4912594e906SNikolay Aleksandrov return true; 4922594e906SNikolay Aleksandrov else 4932594e906SNikolay Aleksandrov return false; 4942594e906SNikolay Aleksandrov } 4952594e906SNikolay Aleksandrov 4962594e906SNikolay Aleksandrov return true; 4972594e906SNikolay Aleksandrov } 4982594e906SNikolay Aleksandrov 499ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 500ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 501ae75767eSNikolay Aleksandrov { 502ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 503ae75767eSNikolay Aleksandrov } 504ae75767eSNikolay Aleksandrov 505a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 506a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 507a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 508a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 509a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 510a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 511a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 512a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 513ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 514ae75767eSNikolay Aleksandrov 5151da177e4SLinus Torvalds /* br_device.c */ 516348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 517348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 518348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 519cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 52091d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 52191d2c34aSHerbert Xu struct sk_buff *skb) 52291d2c34aSHerbert Xu { 52391d2c34aSHerbert Xu struct netpoll *np = p->np; 52491d2c34aSHerbert Xu 52591d2c34aSHerbert Xu if (np) 52691d2c34aSHerbert Xu netpoll_send_skb(np, skb); 52791d2c34aSHerbert Xu } 52891d2c34aSHerbert Xu 529a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 530348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 53191d2c34aSHerbert Xu #else 5329f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 53391d2c34aSHerbert Xu struct sk_buff *skb) 53491d2c34aSHerbert Xu { 53591d2c34aSHerbert Xu } 53691d2c34aSHerbert Xu 537a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 53891d2c34aSHerbert Xu { 53991d2c34aSHerbert Xu return 0; 54091d2c34aSHerbert Xu } 54191d2c34aSHerbert Xu 54291d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 54391d2c34aSHerbert Xu { 54491d2c34aSHerbert Xu } 545cfb478daSstephen hemminger #endif 5461da177e4SLinus Torvalds 5471da177e4SLinus Torvalds /* br_fdb.c */ 548348662a1SJoe Perches int br_fdb_init(void); 549348662a1SJoe Perches void br_fdb_fini(void); 550eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 551eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 552348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 553424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 554424bb9c9SToshiaki Makita const struct net_bridge_port *p, 555424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 556348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 557348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 558f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 559348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 5601ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 561bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 562bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 563bfd0aeacSNikolay Aleksandrov __u16 vid); 564348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 565348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 566348662a1SJoe Perches unsigned long off); 567348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 568348662a1SJoe Perches const unsigned char *addr, u16 vid); 569348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 570a5642ab4SToshiaki Makita const unsigned char *addr, u16 vid, bool added_by_user); 57177162022SJohn Fastabend 572348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 573f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 574348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 575f6f6424bSJiri Pirko const unsigned char *addr, u16 vid, u16 nlh_flags); 576348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 577d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 5788db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 5798db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 5803aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 581161d82deSPetr Machata const unsigned char *addr, u16 vid, 582161d82deSPetr Machata bool swdev_notify); 5833aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 584161d82deSPetr Machata const unsigned char *addr, u16 vid, 585161d82deSPetr Machata bool swdev_notify); 5869fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 587e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 5881da177e4SLinus Torvalds 5891da177e4SLinus Torvalds /* br_forward.c */ 5908addd5e7SNikolay Aleksandrov enum br_pkt_type { 5918addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 5928addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 5938addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 5948addd5e7SNikolay Aleksandrov }; 5950c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 596b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 59737b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 5980c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 59937b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 6008addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 6011da177e4SLinus Torvalds 6027d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 6037d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 6047d850abdSNikolay Aleksandrov const struct sk_buff *skb) 6057d850abdSNikolay Aleksandrov { 6067d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 6077d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 6087d850abdSNikolay Aleksandrov } 6097d850abdSNikolay Aleksandrov 6101da177e4SLinus Torvalds /* br_if.c */ 611faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 612348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 613348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 614ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 615ca752be0SDavid Ahern struct netlink_ext_ack *extack); 616348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 617804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 618348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 619c8f44affSMichał Mirosław netdev_features_t features); 620e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 6212796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 6222756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 6231da177e4SLinus Torvalds 6241da177e4SLinus Torvalds /* br_input.c */ 6250c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 626348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 6271da177e4SLinus Torvalds 628859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 629859828c0SJiri Pirko { 630859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 631859828c0SJiri Pirko } 632859828c0SJiri Pirko 6334d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 6344d4fd361SPetr Machata { 6354d4fd361SPetr Machata return rcu_dereference_rtnl(dev->rx_handler) == br_handle_frame; 6364d4fd361SPetr Machata } 6374d4fd361SPetr Machata 638859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 639859828c0SJiri Pirko { 640859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 641859828c0SJiri Pirko } 642859828c0SJiri Pirko 6434d4fd361SPetr Machata static inline struct net_bridge_port * 6444d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 6454d4fd361SPetr Machata { 6464d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 6474d4fd361SPetr Machata } 6484d4fd361SPetr Machata 6491da177e4SLinus Torvalds /* br_ioctl.c */ 650348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 651348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 652348662a1SJoe Perches void __user *arg); 6531da177e4SLinus Torvalds 654eb1d1641SHerbert Xu /* br_multicast.c */ 655eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 656348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 657fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 658348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 659eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 6601080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 661348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 662348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 663348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 664348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 665348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 666348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 667e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 66837b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 66937b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 670348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 671348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 672348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 673348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 674348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 6755e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 676aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 677aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 678aa2ae3e7SNikolay Aleksandrov #endif 679348662a1SJoe Perches struct net_bridge_mdb_entry * 68019e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 681348662a1SJoe Perches struct net_bridge_mdb_entry * 68219e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 683348662a1SJoe Perches struct net_bridge_port_group * 684348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 685762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 6866db6f0eaSFelix Fietkau unsigned char flags, const unsigned char *src); 68719e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 68819e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 68945ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 69045ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 691949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 692949f1e39SSatish Ashok int type); 6931080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 694a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 6951080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 696b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 6971080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 6981080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 6991080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 70019e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 70119e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 70285b35269SSridhar Samudrala 703cfd56754SCong Wang #define mlock_dereference(X, br) \ 704cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 705cfd56754SCong Wang 70685b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 70785b35269SSridhar Samudrala { 70885b35269SSridhar Samudrala return br->multicast_router == 2 || 70985b35269SSridhar Samudrala (br->multicast_router == 1 && 71085b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 71185b35269SSridhar Samudrala } 712b00589afSLinus Lüssing 713cc0fdd80SLinus Lüssing static inline bool 714cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 7150888d5f3Sdaniel struct bridge_mcast_other_query *querier, 7160888d5f3Sdaniel const bool is_ipv6) 717b00589afSLinus Lüssing { 7180888d5f3Sdaniel bool own_querier_enabled; 7190888d5f3Sdaniel 720675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 721675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 7220888d5f3Sdaniel own_querier_enabled = false; 7230888d5f3Sdaniel else 7240888d5f3Sdaniel own_querier_enabled = true; 7250888d5f3Sdaniel } else { 7260888d5f3Sdaniel own_querier_enabled = false; 7270888d5f3Sdaniel } 7280888d5f3Sdaniel 729cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 7300888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 731cc0fdd80SLinus Lüssing } 732cc0fdd80SLinus Lüssing 733cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 734cc0fdd80SLinus Lüssing struct ethhdr *eth) 735cc0fdd80SLinus Lüssing { 736cc0fdd80SLinus Lüssing switch (eth->h_proto) { 737cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 7380888d5f3Sdaniel return __br_multicast_querier_exists(br, 7390888d5f3Sdaniel &br->ip4_other_query, false); 740cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 741cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 7420888d5f3Sdaniel return __br_multicast_querier_exists(br, 7430888d5f3Sdaniel &br->ip6_other_query, true); 744cc0fdd80SLinus Lüssing #endif 745cc0fdd80SLinus Lüssing default: 746cc0fdd80SLinus Lüssing return false; 747cc0fdd80SLinus Lüssing } 748b00589afSLinus Lüssing } 7491080ab95SNikolay Aleksandrov 7501080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 7511080ab95SNikolay Aleksandrov { 7521080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 7531080ab95SNikolay Aleksandrov } 754eb1d1641SHerbert Xu #else 755eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 756eb1d1641SHerbert Xu struct net_bridge_port *port, 75706499098SVlad Yasevich struct sk_buff *skb, 75806499098SVlad Yasevich u16 vid) 759eb1d1641SHerbert Xu { 760eb1d1641SHerbert Xu return 0; 761eb1d1641SHerbert Xu } 762eb1d1641SHerbert Xu 763eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 764fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 765eb1d1641SHerbert Xu { 766eb1d1641SHerbert Xu return NULL; 767eb1d1641SHerbert Xu } 768eb1d1641SHerbert Xu 7691080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 770eb1d1641SHerbert Xu { 7711080ab95SNikolay Aleksandrov return 0; 772eb1d1641SHerbert Xu } 773eb1d1641SHerbert Xu 774eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 775eb1d1641SHerbert Xu { 776eb1d1641SHerbert Xu } 777eb1d1641SHerbert Xu 778eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 779eb1d1641SHerbert Xu { 780eb1d1641SHerbert Xu } 781eb1d1641SHerbert Xu 782eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 783eb1d1641SHerbert Xu { 784eb1d1641SHerbert Xu } 785eb1d1641SHerbert Xu 786eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 787eb1d1641SHerbert Xu { 788eb1d1641SHerbert Xu } 789eb1d1641SHerbert Xu 790eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 791eb1d1641SHerbert Xu { 792eb1d1641SHerbert Xu } 793eb1d1641SHerbert Xu 794eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 795eb1d1641SHerbert Xu { 796eb1d1641SHerbert Xu } 7975cb5e947SHerbert Xu 798a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 799a7ce45a7SNikolay Aleksandrov { 800a7ce45a7SNikolay Aleksandrov } 801a7ce45a7SNikolay Aleksandrov 80237b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 80337b090e6SNikolay Aleksandrov struct sk_buff *skb, 80437b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 8055cb5e947SHerbert Xu { 8065cb5e947SHerbert Xu } 8075cb5e947SHerbert Xu 808eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 809eb1d1641SHerbert Xu { 81003aaa9e2SGustavo A. R. Silva return false; 811eb1d1641SHerbert Xu } 81237b090e6SNikolay Aleksandrov 813cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 814cc0fdd80SLinus Lüssing struct ethhdr *eth) 815b00589afSLinus Lüssing { 816b00589afSLinus Lüssing return false; 817b00589afSLinus Lüssing } 81837b090e6SNikolay Aleksandrov 819fdb184d1SRami Rosen static inline void br_mdb_init(void) 820fdb184d1SRami Rosen { 821fdb184d1SRami Rosen } 82237b090e6SNikolay Aleksandrov 823fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 824fdb184d1SRami Rosen { 825fdb184d1SRami Rosen } 8261080ab95SNikolay Aleksandrov 82719e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 82819e3a9c9SNikolay Aleksandrov { 82919e3a9c9SNikolay Aleksandrov return 0; 83019e3a9c9SNikolay Aleksandrov } 83119e3a9c9SNikolay Aleksandrov 83219e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 83319e3a9c9SNikolay Aleksandrov { 83419e3a9c9SNikolay Aleksandrov } 83519e3a9c9SNikolay Aleksandrov 8361080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 8371080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 838a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 839a65056ecSNikolay Aleksandrov u8 type, u8 dir) 8401080ab95SNikolay Aleksandrov { 8411080ab95SNikolay Aleksandrov } 8421080ab95SNikolay Aleksandrov 8431080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 8441080ab95SNikolay Aleksandrov { 8451080ab95SNikolay Aleksandrov return 0; 8461080ab95SNikolay Aleksandrov } 8471080ab95SNikolay Aleksandrov 848b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 849b6fe0440SIdo Schimmel { 850b6fe0440SIdo Schimmel } 851b6fe0440SIdo Schimmel 8521080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 8531080ab95SNikolay Aleksandrov { 8541080ab95SNikolay Aleksandrov return 0; 8551080ab95SNikolay Aleksandrov } 85685b35269SSridhar Samudrala #endif 857eb1d1641SHerbert Xu 858243a2e63SVlad Yasevich /* br_vlan.c */ 859243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 86077751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 86177751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 8622594e906SNikolay Aleksandrov u16 *vid); 86377751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 86485f46c6bSVlad Yasevich const struct sk_buff *skb); 865e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 866348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 86711538d03SRoopa Prabhu const struct net_bridge_port *port, 8682594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 86978851988SVlad Yasevich struct sk_buff *skb); 870f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 871169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 872348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 873348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 8742594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 875204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 876a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 877348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 878d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 879204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 8806dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 8819163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 8825be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 88396a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 884169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 885169327d5SPetr Machata struct netlink_ext_ack *extack); 886f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 887169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 888348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 889348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 890169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 8912594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 892a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 893a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 894a37b85c9SVlad Yasevich 8952594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 896a37b85c9SVlad Yasevich const struct net_bridge *br) 897a37b85c9SVlad Yasevich { 898907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 899a37b85c9SVlad Yasevich } 900a37b85c9SVlad Yasevich 9012594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 902a37b85c9SVlad Yasevich const struct net_bridge_port *p) 903a37b85c9SVlad Yasevich { 904907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 905907b1e6eSNikolay Aleksandrov } 906907b1e6eSNikolay Aleksandrov 907907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 908907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 909907b1e6eSNikolay Aleksandrov { 910907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 911907b1e6eSNikolay Aleksandrov } 912907b1e6eSNikolay Aleksandrov 913907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 914907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 915907b1e6eSNikolay Aleksandrov { 916907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 917a37b85c9SVlad Yasevich } 918a37b85c9SVlad Yasevich 919a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 920a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 921a37b85c9SVlad Yasevich */ 922a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 923a37b85c9SVlad Yasevich { 924a37b85c9SVlad Yasevich int err = 0; 925a37b85c9SVlad Yasevich 9262594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 9275978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 9282594e906SNikolay Aleksandrov } else { 929a37b85c9SVlad Yasevich *vid = 0; 930a37b85c9SVlad Yasevich err = -EINVAL; 931a37b85c9SVlad Yasevich } 932a37b85c9SVlad Yasevich 933a37b85c9SVlad Yasevich return err; 934a37b85c9SVlad Yasevich } 93578851988SVlad Yasevich 93677751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 93778851988SVlad Yasevich { 93877751ee8SNikolay Aleksandrov if (!vg) 9395be5a2dfSVlad Yasevich return 0; 9405be5a2dfSVlad Yasevich 94178851988SVlad Yasevich smp_rmb(); 94277751ee8SNikolay Aleksandrov return vg->pvid; 94378851988SVlad Yasevich } 94478851988SVlad Yasevich 945243a2e63SVlad Yasevich #else 94677751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 94777751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 9482594e906SNikolay Aleksandrov struct sk_buff *skb, 9492594e906SNikolay Aleksandrov u16 *vid) 9502594e906SNikolay Aleksandrov { 9512594e906SNikolay Aleksandrov return true; 9522594e906SNikolay Aleksandrov } 9532594e906SNikolay Aleksandrov 9542594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 95585f46c6bSVlad Yasevich const struct sk_buff *skb) 95685f46c6bSVlad Yasevich { 95785f46c6bSVlad Yasevich return true; 95885f46c6bSVlad Yasevich } 95985f46c6bSVlad Yasevich 960e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 961e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 962e0d7968aSToshiaki Makita { 963e0d7968aSToshiaki Makita return true; 964e0d7968aSToshiaki Makita } 965e0d7968aSToshiaki Makita 96678851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 96711538d03SRoopa Prabhu const struct net_bridge_port *port, 9682594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 96978851988SVlad Yasevich struct sk_buff *skb) 97078851988SVlad Yasevich { 97178851988SVlad Yasevich return skb; 97278851988SVlad Yasevich } 97378851988SVlad Yasevich 974f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 975169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 976243a2e63SVlad Yasevich { 977f418af63SNikolay Aleksandrov *changed = false; 978243a2e63SVlad Yasevich return -EOPNOTSUPP; 979243a2e63SVlad Yasevich } 980243a2e63SVlad Yasevich 981243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 982243a2e63SVlad Yasevich { 983243a2e63SVlad Yasevich return -EOPNOTSUPP; 984243a2e63SVlad Yasevich } 985243a2e63SVlad Yasevich 986243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 987243a2e63SVlad Yasevich { 988243a2e63SVlad Yasevich } 989243a2e63SVlad Yasevich 990204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 991204177f3SToshiaki Makita { 992204177f3SToshiaki Makita } 993204177f3SToshiaki Makita 9945be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 9958580e211SToshiaki Makita { 9965be5a2dfSVlad Yasevich return 0; 9978580e211SToshiaki Makita } 9988580e211SToshiaki Makita 999f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1000169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1001243a2e63SVlad Yasevich { 1002f418af63SNikolay Aleksandrov *changed = false; 1003243a2e63SVlad Yasevich return -EOPNOTSUPP; 1004243a2e63SVlad Yasevich } 1005243a2e63SVlad Yasevich 1006243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1007243a2e63SVlad Yasevich { 1008243a2e63SVlad Yasevich return -EOPNOTSUPP; 1009243a2e63SVlad Yasevich } 1010243a2e63SVlad Yasevich 1011243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1012243a2e63SVlad Yasevich { 1013243a2e63SVlad Yasevich } 1014243a2e63SVlad Yasevich 10152594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 10162594e906SNikolay Aleksandrov u16 vid) 1017a37b85c9SVlad Yasevich { 1018a37b85c9SVlad Yasevich return NULL; 1019a37b85c9SVlad Yasevich } 1020bc9a25d2SVlad Yasevich 1021169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1022169327d5SPetr Machata struct netlink_ext_ack *extack) 10235be5a2dfSVlad Yasevich { 10245be5a2dfSVlad Yasevich return 0; 10255be5a2dfSVlad Yasevich } 10265be5a2dfSVlad Yasevich 102778851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1028a37b85c9SVlad Yasevich { 1029a37b85c9SVlad Yasevich return 0; 1030a37b85c9SVlad Yasevich } 10312594e906SNikolay Aleksandrov 103277751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 103378851988SVlad Yasevich { 10343df6bf45SVlad Yasevich return 0; 103578851988SVlad Yasevich } 10362796d0c6SVlad Yasevich 1037a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1038a7854037SNikolay Aleksandrov unsigned long val) 1039a7854037SNikolay Aleksandrov { 1040a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1041a7854037SNikolay Aleksandrov } 10422594e906SNikolay Aleksandrov 10432594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 10442594e906SNikolay Aleksandrov u32 filter_mask) 10452594e906SNikolay Aleksandrov { 10462594e906SNikolay Aleksandrov return 0; 10472594e906SNikolay Aleksandrov } 10482594e906SNikolay Aleksandrov 10492594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 10502594e906SNikolay Aleksandrov const struct net_bridge *br) 10512594e906SNikolay Aleksandrov { 10522594e906SNikolay Aleksandrov return NULL; 10532594e906SNikolay Aleksandrov } 10542594e906SNikolay Aleksandrov 10552594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 10562594e906SNikolay Aleksandrov const struct net_bridge_port *p) 10572594e906SNikolay Aleksandrov { 10582594e906SNikolay Aleksandrov return NULL; 10592594e906SNikolay Aleksandrov } 1060907b1e6eSNikolay Aleksandrov 1061907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1062907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1063907b1e6eSNikolay Aleksandrov { 1064907b1e6eSNikolay Aleksandrov return NULL; 1065907b1e6eSNikolay Aleksandrov } 1066907b1e6eSNikolay Aleksandrov 1067907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1068907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1069907b1e6eSNikolay Aleksandrov { 1070907b1e6eSNikolay Aleksandrov return NULL; 1071907b1e6eSNikolay Aleksandrov } 1072a60c0903SNikolay Aleksandrov 1073a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1074a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1075a60c0903SNikolay Aleksandrov { 1076a60c0903SNikolay Aleksandrov } 1077243a2e63SVlad Yasevich #endif 1078243a2e63SVlad Yasevich 10791a4ba64dSPablo Neira Ayuso struct nf_br_ops { 10801a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 10811a4ba64dSPablo Neira Ayuso }; 10821a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 10831a4ba64dSPablo Neira Ayuso 10841da177e4SLinus Torvalds /* br_netfilter.c */ 108534666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 108634666d46SPablo Neira Ayuso int br_nf_core_init(void); 108734666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1088348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1089c0909713SStephen Hemminger #else 109034666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 109134666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 10924adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1093c0909713SStephen Hemminger #endif 10941da177e4SLinus Torvalds 10951da177e4SLinus Torvalds /* br_stp.c */ 1096775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1097348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1098348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1099348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 11001da177e4SLinus Torvalds 1101348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1102348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1103348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1104348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 110582dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 11069e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 110714f98f25Sstephen hemminger 110814f98f25Sstephen hemminger 11091da177e4SLinus Torvalds /* br_stp_if.c */ 1110348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1111348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1112348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 1113348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1114348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1115348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1116348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1117348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1118348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1119348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1120348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 11211da177e4SLinus Torvalds 11221da177e4SLinus Torvalds /* br_stp_bpdu.c */ 11237c85fbf0SPatrick McHardy struct stp_proto; 1124348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 11257c85fbf0SPatrick McHardy struct net_device *dev); 11261da177e4SLinus Torvalds 11271da177e4SLinus Torvalds /* br_stp_timer.c */ 1128348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1129348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1130348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 11311da177e4SLinus Torvalds 11321da177e4SLinus Torvalds /* br.c */ 1133e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1134da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1135da678292SMichał Mirosław #endif 11361da177e4SLinus Torvalds 113711dc1f36SStephen Hemminger /* br_netlink.c */ 1138149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1139348662a1SJoe Perches int br_netlink_init(void); 1140348662a1SJoe Perches void br_netlink_fini(void); 114192899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 114292899063SNikolay Aleksandrov const struct net_bridge_port *port); 11432fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 11442fd527b7SPetr Machata struct netlink_ext_ack *extack); 1145add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1146348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 114746c264daSNicolas Dichtel u32 filter_mask, int nlflags); 114811dc1f36SStephen Hemminger 11491da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 11501da177e4SLinus Torvalds /* br_sysfs_if.c */ 115152cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1152348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1153348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 11541da177e4SLinus Torvalds 11551da177e4SLinus Torvalds /* br_sysfs_br.c */ 1156348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1157348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 11581da177e4SLinus Torvalds 11591da177e4SLinus Torvalds #else 11601da177e4SLinus Torvalds 11610cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 11620cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 11630cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 11640cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 11651da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 11661da177e4SLinus Torvalds 11676bc506b4SIdo Schimmel /* br_switchdev.c */ 11686bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 11696bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 11706bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 11716bc506b4SIdo Schimmel struct sk_buff *skb); 11726bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 11736bc506b4SIdo Schimmel const struct sk_buff *skb); 11743922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 11753922285dSArkadi Sharshevsky unsigned long flags, 11763922285dSArkadi Sharshevsky unsigned long mask); 11776b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 11786b26b51bSArkadi Sharshevsky int type); 1179169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1180169327d5SPetr Machata struct netlink_ext_ack *extack); 1181d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1182f1c2eddfSIdo Schimmel 1183f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1184f1c2eddfSIdo Schimmel { 1185f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1186f1c2eddfSIdo Schimmel } 11876bc506b4SIdo Schimmel #else 11886bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 11896bc506b4SIdo Schimmel { 11906bc506b4SIdo Schimmel return 0; 11916bc506b4SIdo Schimmel } 11926bc506b4SIdo Schimmel 11936bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 11946bc506b4SIdo Schimmel struct sk_buff *skb) 11956bc506b4SIdo Schimmel { 11966bc506b4SIdo Schimmel } 11976bc506b4SIdo Schimmel 11986bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 11996bc506b4SIdo Schimmel const struct sk_buff *skb) 12006bc506b4SIdo Schimmel { 12016bc506b4SIdo Schimmel return true; 12026bc506b4SIdo Schimmel } 12033922285dSArkadi Sharshevsky 12043922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 12053922285dSArkadi Sharshevsky unsigned long flags, 12063922285dSArkadi Sharshevsky unsigned long mask) 12073922285dSArkadi Sharshevsky { 12083922285dSArkadi Sharshevsky return 0; 12093922285dSArkadi Sharshevsky } 12106b26b51bSArkadi Sharshevsky 1211d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1212169327d5SPetr Machata u16 vid, u16 flags, 1213169327d5SPetr Machata struct netlink_ext_ack *extack) 1214d66e4348SPetr Machata { 1215d66e4348SPetr Machata return -EOPNOTSUPP; 1216d66e4348SPetr Machata } 1217d66e4348SPetr Machata 1218d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1219d66e4348SPetr Machata { 1220d66e4348SPetr Machata return -EOPNOTSUPP; 1221d66e4348SPetr Machata } 1222d66e4348SPetr Machata 12236b26b51bSArkadi Sharshevsky static inline void 12246b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 12256b26b51bSArkadi Sharshevsky { 12266b26b51bSArkadi Sharshevsky } 1227f1c2eddfSIdo Schimmel 1228f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1229f1c2eddfSIdo Schimmel { 1230f1c2eddfSIdo Schimmel } 12316bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 12326bc506b4SIdo Schimmel 1233057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1234821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1235057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1236057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1237ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1238ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1239ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 12401da177e4SLinus Torvalds #endif 1241