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), 11027973793SIdo Schimmel BR_VLFLAG_ADDED_BY_SWITCHDEV = BIT(1), 1119d332e69SNikolay Aleksandrov }; 1129d332e69SNikolay Aleksandrov 1132594e906SNikolay Aleksandrov /** 1142594e906SNikolay Aleksandrov * struct net_bridge_vlan - per-vlan entry 1152594e906SNikolay Aleksandrov * 1162594e906SNikolay Aleksandrov * @vnode: rhashtable member 1172594e906SNikolay Aleksandrov * @vid: VLAN id 1182594e906SNikolay Aleksandrov * @flags: bridge vlan flags 1199d332e69SNikolay Aleksandrov * @priv_flags: private (in-kernel) bridge vlan flags 1206dada9b1SNikolay Aleksandrov * @stats: per-cpu VLAN statistics 1212594e906SNikolay Aleksandrov * @br: if MASTER flag set, this points to a bridge struct 1222594e906SNikolay Aleksandrov * @port: if MASTER flag unset, this points to a port struct 1232594e906SNikolay Aleksandrov * @refcnt: if MASTER flag set, this is bumped for each port referencing it 1242594e906SNikolay Aleksandrov * @brvlan: if MASTER flag unset, this points to the global per-VLAN context 1252594e906SNikolay Aleksandrov * for this VLAN entry 1262594e906SNikolay Aleksandrov * @vlist: sorted list of VLAN entries 1272594e906SNikolay Aleksandrov * @rcu: used for entry destruction 1282594e906SNikolay Aleksandrov * 1292594e906SNikolay Aleksandrov * This structure is shared between the global per-VLAN entries contained in 1302594e906SNikolay Aleksandrov * the bridge rhashtable and the local per-port per-VLAN entries contained in 1312594e906SNikolay Aleksandrov * the port's rhashtable. The union entries should be interpreted depending on 1322594e906SNikolay Aleksandrov * the entry flags that are set. 1332594e906SNikolay Aleksandrov */ 1342594e906SNikolay Aleksandrov struct net_bridge_vlan { 1352594e906SNikolay Aleksandrov struct rhash_head vnode; 136efa5356bSRoopa Prabhu struct rhash_head tnode; 1372594e906SNikolay Aleksandrov u16 vid; 1382594e906SNikolay Aleksandrov u16 flags; 1399d332e69SNikolay Aleksandrov u16 priv_flags; 1406dada9b1SNikolay Aleksandrov struct br_vlan_stats __percpu *stats; 141243a2e63SVlad Yasevich union { 142243a2e63SVlad Yasevich struct net_bridge *br; 1432594e906SNikolay Aleksandrov struct net_bridge_port *port; 1442594e906SNikolay Aleksandrov }; 1452594e906SNikolay Aleksandrov union { 14625127759SReshetova, Elena refcount_t refcnt; 1472594e906SNikolay Aleksandrov struct net_bridge_vlan *brvlan; 1482594e906SNikolay Aleksandrov }; 149efa5356bSRoopa Prabhu 150efa5356bSRoopa Prabhu struct br_tunnel_info tinfo; 151efa5356bSRoopa Prabhu 1522594e906SNikolay Aleksandrov struct list_head vlist; 1532594e906SNikolay Aleksandrov 154243a2e63SVlad Yasevich struct rcu_head rcu; 1552594e906SNikolay Aleksandrov }; 1562594e906SNikolay Aleksandrov 1572594e906SNikolay Aleksandrov /** 1582594e906SNikolay Aleksandrov * struct net_bridge_vlan_group 1592594e906SNikolay Aleksandrov * 1602594e906SNikolay Aleksandrov * @vlan_hash: VLAN entry rhashtable 1612594e906SNikolay Aleksandrov * @vlan_list: sorted VLAN entry list 1622594e906SNikolay Aleksandrov * @num_vlans: number of total VLAN entries 16377751ee8SNikolay Aleksandrov * @pvid: PVID VLAN id 1642594e906SNikolay Aleksandrov * 1652594e906SNikolay Aleksandrov * IMPORTANT: Be careful when checking if there're VLAN entries using list 1662594e906SNikolay Aleksandrov * primitives because the bridge can have entries in its list which 1672594e906SNikolay Aleksandrov * are just for global context but not for filtering, i.e. they have 1682594e906SNikolay Aleksandrov * the master flag set but not the brentry flag. If you have to check 1692594e906SNikolay Aleksandrov * if there're "real" entries in the bridge please test @num_vlans 1702594e906SNikolay Aleksandrov */ 1712594e906SNikolay Aleksandrov struct net_bridge_vlan_group { 1722594e906SNikolay Aleksandrov struct rhashtable vlan_hash; 173efa5356bSRoopa Prabhu struct rhashtable tunnel_hash; 1742594e906SNikolay Aleksandrov struct list_head vlan_list; 1756cbdceebSVlad Yasevich u16 num_vlans; 17677751ee8SNikolay Aleksandrov u16 pvid; 177243a2e63SVlad Yasevich }; 178243a2e63SVlad Yasevich 179eb793583SNikolay Aleksandrov struct net_bridge_fdb_key { 180eb793583SNikolay Aleksandrov mac_addr addr; 181eb793583SNikolay Aleksandrov u16 vlan_id; 182eb793583SNikolay Aleksandrov }; 183eb793583SNikolay Aleksandrov 1841214628cSNikolay Aleksandrov struct net_bridge_fdb_entry { 185eb793583SNikolay Aleksandrov struct rhash_head rhnode; 1861da177e4SLinus Torvalds struct net_bridge_port *dst; 1871da177e4SLinus Torvalds 188eb793583SNikolay Aleksandrov struct net_bridge_fdb_key key; 189eb793583SNikolay Aleksandrov struct hlist_node fdb_node; 19093859b13SJiri Pirko unsigned char is_local:1, 19193859b13SJiri Pirko is_static:1, 192435f2e7cSNikolay Aleksandrov is_sticky:1, 193cf6b8e1eSScott Feldman added_by_user:1, 1949fe8bcecSArkadi Sharshevsky added_by_external_learn:1, 1959fe8bcecSArkadi Sharshevsky offloaded:1; 1961214628cSNikolay Aleksandrov 1971214628cSNikolay Aleksandrov /* write-heavy members should not affect lookups */ 1981214628cSNikolay Aleksandrov unsigned long updated ____cacheline_aligned_in_smp; 1991214628cSNikolay Aleksandrov unsigned long used; 2001214628cSNikolay Aleksandrov 201b22fbf22SNikolay Aleksandrov struct rcu_head rcu; 2021da177e4SLinus Torvalds }; 2031da177e4SLinus Torvalds 2049d06b6d8SElad Raz #define MDB_PG_FLAGS_PERMANENT BIT(0) 2059d06b6d8SElad Raz #define MDB_PG_FLAGS_OFFLOAD BIT(1) 2069d06b6d8SElad Raz 207eb1d1641SHerbert Xu struct net_bridge_port_group { 208eb1d1641SHerbert Xu struct net_bridge_port *port; 209e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 210eb1d1641SHerbert Xu struct hlist_node mglist; 211eb1d1641SHerbert Xu struct rcu_head rcu; 212eb1d1641SHerbert Xu struct timer_list timer; 2138ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 2149d06b6d8SElad Raz unsigned char flags; 2156db6f0eaSFelix Fietkau unsigned char eth_addr[ETH_ALEN]; 216eb1d1641SHerbert Xu }; 217eb1d1641SHerbert Xu 2181c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_entry { 21919e3a9c9SNikolay Aleksandrov struct rhash_head rhnode; 220eb1d1641SHerbert Xu struct net_bridge *br; 221e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 222eb1d1641SHerbert Xu struct rcu_head rcu; 223eb1d1641SHerbert Xu struct timer_list timer; 2248ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 225ff0fd34eSAndrew Lunn bool host_joined; 22619e3a9c9SNikolay Aleksandrov struct hlist_node mdb_node; 227eb1d1641SHerbert Xu }; 228eb1d1641SHerbert Xu 2291f90c7f3SNikolay Aleksandrov struct net_bridge_port { 2301da177e4SLinus Torvalds struct net_bridge *br; 2311da177e4SLinus Torvalds struct net_device *dev; 2321da177e4SLinus Torvalds struct list_head list; 2331da177e4SLinus Torvalds 2341f90c7f3SNikolay Aleksandrov unsigned long flags; 2351f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 2361f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 2371f90c7f3SNikolay Aleksandrov #endif 2382756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 2391f90c7f3SNikolay Aleksandrov 2401da177e4SLinus Torvalds /* STP */ 2411da177e4SLinus Torvalds u8 priority; 2421da177e4SLinus Torvalds u8 state; 2431da177e4SLinus Torvalds u16 port_no; 2441da177e4SLinus Torvalds unsigned char topology_change_ack; 2451da177e4SLinus Torvalds unsigned char config_pending; 2461da177e4SLinus Torvalds port_id port_id; 2471da177e4SLinus Torvalds port_id designated_port; 2481da177e4SLinus Torvalds bridge_id designated_root; 2491da177e4SLinus Torvalds bridge_id designated_bridge; 2501da177e4SLinus Torvalds u32 path_cost; 2511da177e4SLinus Torvalds u32 designated_cost; 2520c03150eSstephen hemminger unsigned long designated_age; 2531da177e4SLinus Torvalds 2541da177e4SLinus Torvalds struct timer_list forward_delay_timer; 2551da177e4SLinus Torvalds struct timer_list hold_timer; 2561da177e4SLinus Torvalds struct timer_list message_age_timer; 2571da177e4SLinus Torvalds struct kobject kobj; 2581da177e4SLinus Torvalds struct rcu_head rcu; 2593982d3d2SFischer, Anna 260eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 26190010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 262cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 26390010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 264cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 265eb1d1641SHerbert Xu unsigned char multicast_router; 2661080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 267eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 268eb1d1641SHerbert Xu struct hlist_head mglist; 269eb1d1641SHerbert Xu struct hlist_node rlist; 270eb1d1641SHerbert Xu #endif 271e0f43752SSimon Arlott 272e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 273e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 274e0f43752SSimon Arlott #endif 27591d2c34aSHerbert Xu 27691d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 27791d2c34aSHerbert Xu struct netpoll *np; 27891d2c34aSHerbert Xu #endif 2796bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 2806bc506b4SIdo Schimmel int offload_fwd_mark; 2816bc506b4SIdo Schimmel #endif 2825af48b59SNikolay Aleksandrov u16 group_fwd_mask; 2832756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 2841da177e4SLinus Torvalds }; 2851da177e4SLinus Torvalds 286705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 287705e0deaSTyler Hicks 288e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 289f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 290e028e4b8SVlad Yasevich 291b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 292b5ed54e9Sstephen hemminger { 293716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 294b5ed54e9Sstephen hemminger } 295b5ed54e9Sstephen hemminger 2961fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 297b5ed54e9Sstephen hemminger { 29835f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 299ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 300b5ed54e9Sstephen hemminger } 301b5ed54e9Sstephen hemminger 3020baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 3030baa10ffSArkadi Sharshevsky { 30435f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 3050baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3060baa10ffSArkadi Sharshevsky } 3070baa10ffSArkadi Sharshevsky 308ae75767eSNikolay Aleksandrov enum net_bridge_opts { 309ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 310ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 3118df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 3128df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 3138df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 314be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 31513cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 316675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 317675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 318675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 319675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 320c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 3213341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 3229163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 32370e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 324ae75767eSNikolay Aleksandrov }; 325ae75767eSNikolay Aleksandrov 3261f90c7f3SNikolay Aleksandrov struct net_bridge { 3271da177e4SLinus Torvalds spinlock_t lock; 3281f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 3291da177e4SLinus Torvalds struct list_head port_list; 3301da177e4SLinus Torvalds struct net_device *dev; 3318f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 332ae75767eSNikolay Aleksandrov unsigned long options; 3331f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3341f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3351f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3361f90c7f3SNikolay Aleksandrov u16 default_pvid; 3371f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3381f90c7f3SNikolay Aleksandrov #endif 3391f90c7f3SNikolay Aleksandrov 340eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 34134666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 342efb6de9bSBernhard Thaler union { 3434adf0af6SSimon Wunderlich struct rtable fake_rtable; 344efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 345efb6de9bSBernhard Thaler }; 3464adf0af6SSimon Wunderlich #endif 347515853ccSstephen hemminger u16 group_fwd_mask; 348f2808d22SToshiaki Makita u16 group_fwd_mask_required; 349515853ccSstephen hemminger 3501da177e4SLinus Torvalds /* STP */ 3511da177e4SLinus Torvalds bridge_id designated_root; 3521da177e4SLinus Torvalds bridge_id bridge_id; 3531f90c7f3SNikolay Aleksandrov unsigned char topology_change; 3541f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 3551f90c7f3SNikolay Aleksandrov u16 root_port; 3561da177e4SLinus Torvalds unsigned long max_age; 3571da177e4SLinus Torvalds unsigned long hello_time; 3581da177e4SLinus Torvalds unsigned long forward_delay; 3591da177e4SLinus Torvalds unsigned long ageing_time; 36034d8acd8SVivien Didelot unsigned long bridge_max_age; 3611da177e4SLinus Torvalds unsigned long bridge_hello_time; 3621da177e4SLinus Torvalds unsigned long bridge_forward_delay; 36334d8acd8SVivien Didelot unsigned long bridge_ageing_time; 36435750b0bSNikolay Aleksandrov u32 root_path_cost; 3651da177e4SLinus Torvalds 366fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 3679cde0708SStephen Hemminger 3689cde0708SStephen Hemminger enum { 3699cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 3709cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 3719cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 3729cde0708SStephen Hemminger } stp_enabled; 3739cde0708SStephen Hemminger 374eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 375eb1d1641SHerbert Xu 376eb1d1641SHerbert Xu u32 hash_max; 377eb1d1641SHerbert Xu 378eb1d1641SHerbert Xu u32 multicast_last_member_count; 379eb1d1641SHerbert Xu u32 multicast_startup_query_count; 380eb1d1641SHerbert Xu 3815e923585SNikolay Aleksandrov u8 multicast_igmp_version; 382675779adSNikolay Aleksandrov u8 multicast_router; 383675779adSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 384675779adSNikolay Aleksandrov u8 multicast_mld_version; 385675779adSNikolay Aleksandrov #endif 38635750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 387eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 388eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 389eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 390eb1d1641SHerbert Xu unsigned long multicast_query_interval; 391eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 392eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 393eb1d1641SHerbert Xu 39419e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 39519e3a9c9SNikolay Aleksandrov 39619e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 397eb1d1641SHerbert Xu struct hlist_head router_list; 398eb1d1641SHerbert Xu 399eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 40090010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 40190010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 402dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 4031080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 404cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 40590010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 40690010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 407dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 408cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 409eb1d1641SHerbert Xu #endif 410eb1d1641SHerbert Xu 4111da177e4SLinus Torvalds struct timer_list hello_timer; 4121da177e4SLinus Torvalds struct timer_list tcn_timer; 4131da177e4SLinus Torvalds struct timer_list topology_change_timer; 414f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 41543b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 416e028e4b8SVlad Yasevich u32 auto_cnt; 4176bc506b4SIdo Schimmel 4186bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4196bc506b4SIdo Schimmel int offload_fwd_mark; 4206bc506b4SIdo Schimmel #endif 421eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4221da177e4SLinus Torvalds }; 4231da177e4SLinus Torvalds 42468b7c895SHerbert Xu struct br_input_skb_cb { 42568b7c895SHerbert Xu struct net_device *brdev; 42693fdd47eSHerbert Xu 42732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 428f12064d1SFlorian Westphal u8 igmp; 429f12064d1SFlorian Westphal u8 mrouters_only:1; 43032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 431f12064d1SFlorian Westphal u8 proxyarp_replied:1; 432f12064d1SFlorian Westphal u8 src_port_isolated:1; 43320adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 434f12064d1SFlorian Westphal u8 vlan_filtered:1; 43520adfa1aSVlad Yasevich #endif 4366bc506b4SIdo Schimmel 4376bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4386bc506b4SIdo Schimmel int offload_fwd_mark; 4396bc506b4SIdo Schimmel #endif 44068b7c895SHerbert Xu }; 44168b7c895SHerbert Xu 44268b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 44368b7c895SHerbert Xu 44432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 44532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 44632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 44732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 44832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 44932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 45028a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 45128a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 45228a16c97Sstephen hemminger 45328a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 45428a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 45528a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 45628a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 45728a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 45828a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 45928a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 46028a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 46128a16c97Sstephen hemminger 46228a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 46328a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 46428a16c97Sstephen hemminger 4651da177e4SLinus Torvalds /* called under bridge lock */ 4661da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 4671da177e4SLinus Torvalds { 4681da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 4691da177e4SLinus Torvalds } 4701da177e4SLinus Torvalds 4712594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 4722594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 4732594e906SNikolay Aleksandrov { 4742594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 4752594e906SNikolay Aleksandrov } 4762594e906SNikolay Aleksandrov 4772594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 4782594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 4792594e906SNikolay Aleksandrov { 4802594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 4812594e906SNikolay Aleksandrov } 4822594e906SNikolay Aleksandrov 4836be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 4842594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 4852594e906SNikolay Aleksandrov { 4862594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 4872594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 4882594e906SNikolay Aleksandrov return true; 4892594e906SNikolay Aleksandrov else 4902594e906SNikolay Aleksandrov return false; 4912594e906SNikolay Aleksandrov } 4922594e906SNikolay Aleksandrov 4932594e906SNikolay Aleksandrov return true; 4942594e906SNikolay Aleksandrov } 4952594e906SNikolay Aleksandrov 496ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 497ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 498ae75767eSNikolay Aleksandrov { 499ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 500ae75767eSNikolay Aleksandrov } 501ae75767eSNikolay Aleksandrov 502a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 503a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 504a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 505a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 506a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 507a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 508a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 509a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 510ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 511ae75767eSNikolay Aleksandrov 5121da177e4SLinus Torvalds /* br_device.c */ 513348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 514348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 515348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 516cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 51791d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 51891d2c34aSHerbert Xu struct sk_buff *skb) 51991d2c34aSHerbert Xu { 52091d2c34aSHerbert Xu struct netpoll *np = p->np; 52191d2c34aSHerbert Xu 52291d2c34aSHerbert Xu if (np) 52391d2c34aSHerbert Xu netpoll_send_skb(np, skb); 52491d2c34aSHerbert Xu } 52591d2c34aSHerbert Xu 526a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 527348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 52891d2c34aSHerbert Xu #else 5299f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 53091d2c34aSHerbert Xu struct sk_buff *skb) 53191d2c34aSHerbert Xu { 53291d2c34aSHerbert Xu } 53391d2c34aSHerbert Xu 534a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 53591d2c34aSHerbert Xu { 53691d2c34aSHerbert Xu return 0; 53791d2c34aSHerbert Xu } 53891d2c34aSHerbert Xu 53991d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 54091d2c34aSHerbert Xu { 54191d2c34aSHerbert Xu } 542cfb478daSstephen hemminger #endif 5431da177e4SLinus Torvalds 5441da177e4SLinus Torvalds /* br_fdb.c */ 545348662a1SJoe Perches int br_fdb_init(void); 546348662a1SJoe Perches void br_fdb_fini(void); 547eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 548eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 549348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 550424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 551424bb9c9SToshiaki Makita const struct net_bridge_port *p, 552424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 553348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 554348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 555f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 556348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 5571ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 558bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 559bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 560bfd0aeacSNikolay Aleksandrov __u16 vid); 561348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 562348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 563348662a1SJoe Perches unsigned long off); 564348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 565348662a1SJoe Perches const unsigned char *addr, u16 vid); 566348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 567a5642ab4SToshiaki Makita const unsigned char *addr, u16 vid, bool added_by_user); 56877162022SJohn Fastabend 569348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 570f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 571348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 57287b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 57387b0984eSPetr Machata struct netlink_ext_ack *extack); 574348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 575d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 57647674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 57747674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 57847674562SRoopa Prabhu struct netlink_ext_ack *extack); 5798db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 5808db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 5813aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 582161d82deSPetr Machata const unsigned char *addr, u16 vid, 583161d82deSPetr Machata bool swdev_notify); 5843aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 585161d82deSPetr Machata const unsigned char *addr, u16 vid, 586161d82deSPetr Machata bool swdev_notify); 5879fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 588e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 5891da177e4SLinus Torvalds 5901da177e4SLinus Torvalds /* br_forward.c */ 5918addd5e7SNikolay Aleksandrov enum br_pkt_type { 5928addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 5938addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 5948addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 5958addd5e7SNikolay Aleksandrov }; 5960c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 597b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 59837b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 5990c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 60037b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 6018addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 6021da177e4SLinus Torvalds 6037d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 6047d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 6057d850abdSNikolay Aleksandrov const struct sk_buff *skb) 6067d850abdSNikolay Aleksandrov { 6077d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 6087d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 6097d850abdSNikolay Aleksandrov } 6107d850abdSNikolay Aleksandrov 6111da177e4SLinus Torvalds /* br_if.c */ 612faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 613348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 614348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 615ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 616ca752be0SDavid Ahern struct netlink_ext_ack *extack); 617348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 618804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 619348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 620c8f44affSMichał Mirosław netdev_features_t features); 621e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 6222796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 6232756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 6241da177e4SLinus Torvalds 6251da177e4SLinus Torvalds /* br_input.c */ 6260c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 627348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 6281da177e4SLinus Torvalds 629859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 630859828c0SJiri Pirko { 631859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 632859828c0SJiri Pirko } 633859828c0SJiri Pirko 6344d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 6354d4fd361SPetr Machata { 6364d4fd361SPetr Machata return rcu_dereference_rtnl(dev->rx_handler) == br_handle_frame; 6374d4fd361SPetr Machata } 6384d4fd361SPetr Machata 639859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 640859828c0SJiri Pirko { 641859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 642859828c0SJiri Pirko } 643859828c0SJiri Pirko 6444d4fd361SPetr Machata static inline struct net_bridge_port * 6454d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 6464d4fd361SPetr Machata { 6474d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 6484d4fd361SPetr Machata } 6494d4fd361SPetr Machata 6501da177e4SLinus Torvalds /* br_ioctl.c */ 651348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 652348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 653348662a1SJoe Perches void __user *arg); 6541da177e4SLinus Torvalds 655eb1d1641SHerbert Xu /* br_multicast.c */ 656eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 657348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 658fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 659348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 660eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 6611080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 662348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 663348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 664348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 665348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 666348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 667348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 668e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 66937b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 67037b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 671348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 672348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 673348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 674348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 675348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 6765e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 677aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 678aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 679aa2ae3e7SNikolay Aleksandrov #endif 680348662a1SJoe Perches struct net_bridge_mdb_entry * 68119e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 682348662a1SJoe Perches struct net_bridge_mdb_entry * 68319e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 684348662a1SJoe Perches struct net_bridge_port_group * 685348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 686762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 6876db6f0eaSFelix Fietkau unsigned char flags, const unsigned char *src); 68819e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 68919e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 69045ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 69145ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 692949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 693949f1e39SSatish Ashok int type); 6941080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 695a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 6961080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 697b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 6981080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 6991080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 7001080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 70119e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 70219e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 70385b35269SSridhar Samudrala 704cfd56754SCong Wang #define mlock_dereference(X, br) \ 705cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 706cfd56754SCong Wang 70785b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 70885b35269SSridhar Samudrala { 70985b35269SSridhar Samudrala return br->multicast_router == 2 || 71085b35269SSridhar Samudrala (br->multicast_router == 1 && 71185b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 71285b35269SSridhar Samudrala } 713b00589afSLinus Lüssing 714cc0fdd80SLinus Lüssing static inline bool 715cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 7160888d5f3Sdaniel struct bridge_mcast_other_query *querier, 7170888d5f3Sdaniel const bool is_ipv6) 718b00589afSLinus Lüssing { 7190888d5f3Sdaniel bool own_querier_enabled; 7200888d5f3Sdaniel 721675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 722675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 7230888d5f3Sdaniel own_querier_enabled = false; 7240888d5f3Sdaniel else 7250888d5f3Sdaniel own_querier_enabled = true; 7260888d5f3Sdaniel } else { 7270888d5f3Sdaniel own_querier_enabled = false; 7280888d5f3Sdaniel } 7290888d5f3Sdaniel 730cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 7310888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 732cc0fdd80SLinus Lüssing } 733cc0fdd80SLinus Lüssing 734cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 735cc0fdd80SLinus Lüssing struct ethhdr *eth) 736cc0fdd80SLinus Lüssing { 737cc0fdd80SLinus Lüssing switch (eth->h_proto) { 738cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 7390888d5f3Sdaniel return __br_multicast_querier_exists(br, 7400888d5f3Sdaniel &br->ip4_other_query, false); 741cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 742cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 7430888d5f3Sdaniel return __br_multicast_querier_exists(br, 7440888d5f3Sdaniel &br->ip6_other_query, true); 745cc0fdd80SLinus Lüssing #endif 746cc0fdd80SLinus Lüssing default: 747cc0fdd80SLinus Lüssing return false; 748cc0fdd80SLinus Lüssing } 749b00589afSLinus Lüssing } 7501080ab95SNikolay Aleksandrov 7511080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 7521080ab95SNikolay Aleksandrov { 7531080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 7541080ab95SNikolay Aleksandrov } 755eb1d1641SHerbert Xu #else 756eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 757eb1d1641SHerbert Xu struct net_bridge_port *port, 75806499098SVlad Yasevich struct sk_buff *skb, 75906499098SVlad Yasevich u16 vid) 760eb1d1641SHerbert Xu { 761eb1d1641SHerbert Xu return 0; 762eb1d1641SHerbert Xu } 763eb1d1641SHerbert Xu 764eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 765fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 766eb1d1641SHerbert Xu { 767eb1d1641SHerbert Xu return NULL; 768eb1d1641SHerbert Xu } 769eb1d1641SHerbert Xu 7701080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 771eb1d1641SHerbert Xu { 7721080ab95SNikolay Aleksandrov return 0; 773eb1d1641SHerbert Xu } 774eb1d1641SHerbert Xu 775eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 776eb1d1641SHerbert Xu { 777eb1d1641SHerbert Xu } 778eb1d1641SHerbert Xu 779eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 780eb1d1641SHerbert Xu { 781eb1d1641SHerbert Xu } 782eb1d1641SHerbert Xu 783eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 784eb1d1641SHerbert Xu { 785eb1d1641SHerbert Xu } 786eb1d1641SHerbert Xu 787eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 788eb1d1641SHerbert Xu { 789eb1d1641SHerbert Xu } 790eb1d1641SHerbert Xu 791eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 792eb1d1641SHerbert Xu { 793eb1d1641SHerbert Xu } 794eb1d1641SHerbert Xu 795eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 796eb1d1641SHerbert Xu { 797eb1d1641SHerbert Xu } 7985cb5e947SHerbert Xu 799a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 800a7ce45a7SNikolay Aleksandrov { 801a7ce45a7SNikolay Aleksandrov } 802a7ce45a7SNikolay Aleksandrov 80337b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 80437b090e6SNikolay Aleksandrov struct sk_buff *skb, 80537b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 8065cb5e947SHerbert Xu { 8075cb5e947SHerbert Xu } 8085cb5e947SHerbert Xu 809eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 810eb1d1641SHerbert Xu { 81103aaa9e2SGustavo A. R. Silva return false; 812eb1d1641SHerbert Xu } 81337b090e6SNikolay Aleksandrov 814cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 815cc0fdd80SLinus Lüssing struct ethhdr *eth) 816b00589afSLinus Lüssing { 817b00589afSLinus Lüssing return false; 818b00589afSLinus Lüssing } 81937b090e6SNikolay Aleksandrov 820fdb184d1SRami Rosen static inline void br_mdb_init(void) 821fdb184d1SRami Rosen { 822fdb184d1SRami Rosen } 82337b090e6SNikolay Aleksandrov 824fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 825fdb184d1SRami Rosen { 826fdb184d1SRami Rosen } 8271080ab95SNikolay Aleksandrov 82819e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 82919e3a9c9SNikolay Aleksandrov { 83019e3a9c9SNikolay Aleksandrov return 0; 83119e3a9c9SNikolay Aleksandrov } 83219e3a9c9SNikolay Aleksandrov 83319e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 83419e3a9c9SNikolay Aleksandrov { 83519e3a9c9SNikolay Aleksandrov } 83619e3a9c9SNikolay Aleksandrov 8371080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 8381080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 839a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 840a65056ecSNikolay Aleksandrov u8 type, u8 dir) 8411080ab95SNikolay Aleksandrov { 8421080ab95SNikolay Aleksandrov } 8431080ab95SNikolay Aleksandrov 8441080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 8451080ab95SNikolay Aleksandrov { 8461080ab95SNikolay Aleksandrov return 0; 8471080ab95SNikolay Aleksandrov } 8481080ab95SNikolay Aleksandrov 849b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 850b6fe0440SIdo Schimmel { 851b6fe0440SIdo Schimmel } 852b6fe0440SIdo Schimmel 8531080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 8541080ab95SNikolay Aleksandrov { 8551080ab95SNikolay Aleksandrov return 0; 8561080ab95SNikolay Aleksandrov } 85785b35269SSridhar Samudrala #endif 858eb1d1641SHerbert Xu 859243a2e63SVlad Yasevich /* br_vlan.c */ 860243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 86177751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 86277751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 8632594e906SNikolay Aleksandrov u16 *vid); 86477751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 86585f46c6bSVlad Yasevich const struct sk_buff *skb); 866e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 867348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 86811538d03SRoopa Prabhu const struct net_bridge_port *port, 8692594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 87078851988SVlad Yasevich struct sk_buff *skb); 871f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 872169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 873348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 874348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 8752594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 876204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 877a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 878348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 879d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 880204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 8816dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 8829163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 8835be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 88496a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 885169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 886169327d5SPetr Machata struct netlink_ext_ack *extack); 887f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 888169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 889348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 890348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 891169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 8922594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 893a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 894a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 895a37b85c9SVlad Yasevich 8962594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 897a37b85c9SVlad Yasevich const struct net_bridge *br) 898a37b85c9SVlad Yasevich { 899907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 900a37b85c9SVlad Yasevich } 901a37b85c9SVlad Yasevich 9022594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 903a37b85c9SVlad Yasevich const struct net_bridge_port *p) 904a37b85c9SVlad Yasevich { 905907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 906907b1e6eSNikolay Aleksandrov } 907907b1e6eSNikolay Aleksandrov 908907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 909907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 910907b1e6eSNikolay Aleksandrov { 911907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 912907b1e6eSNikolay Aleksandrov } 913907b1e6eSNikolay Aleksandrov 914907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 915907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 916907b1e6eSNikolay Aleksandrov { 917907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 918a37b85c9SVlad Yasevich } 919a37b85c9SVlad Yasevich 920a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 921a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 922a37b85c9SVlad Yasevich */ 923a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 924a37b85c9SVlad Yasevich { 925a37b85c9SVlad Yasevich int err = 0; 926a37b85c9SVlad Yasevich 9272594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 9285978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 9292594e906SNikolay Aleksandrov } else { 930a37b85c9SVlad Yasevich *vid = 0; 931a37b85c9SVlad Yasevich err = -EINVAL; 932a37b85c9SVlad Yasevich } 933a37b85c9SVlad Yasevich 934a37b85c9SVlad Yasevich return err; 935a37b85c9SVlad Yasevich } 93678851988SVlad Yasevich 93777751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 93878851988SVlad Yasevich { 93977751ee8SNikolay Aleksandrov if (!vg) 9405be5a2dfSVlad Yasevich return 0; 9415be5a2dfSVlad Yasevich 94278851988SVlad Yasevich smp_rmb(); 94377751ee8SNikolay Aleksandrov return vg->pvid; 94478851988SVlad Yasevich } 94578851988SVlad Yasevich 946243a2e63SVlad Yasevich #else 94777751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 94877751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 9492594e906SNikolay Aleksandrov struct sk_buff *skb, 9502594e906SNikolay Aleksandrov u16 *vid) 9512594e906SNikolay Aleksandrov { 9522594e906SNikolay Aleksandrov return true; 9532594e906SNikolay Aleksandrov } 9542594e906SNikolay Aleksandrov 9552594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 95685f46c6bSVlad Yasevich const struct sk_buff *skb) 95785f46c6bSVlad Yasevich { 95885f46c6bSVlad Yasevich return true; 95985f46c6bSVlad Yasevich } 96085f46c6bSVlad Yasevich 961e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 962e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 963e0d7968aSToshiaki Makita { 964e0d7968aSToshiaki Makita return true; 965e0d7968aSToshiaki Makita } 966e0d7968aSToshiaki Makita 96778851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 96811538d03SRoopa Prabhu const struct net_bridge_port *port, 9692594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 97078851988SVlad Yasevich struct sk_buff *skb) 97178851988SVlad Yasevich { 97278851988SVlad Yasevich return skb; 97378851988SVlad Yasevich } 97478851988SVlad Yasevich 975f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 976169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 977243a2e63SVlad Yasevich { 978f418af63SNikolay Aleksandrov *changed = false; 979243a2e63SVlad Yasevich return -EOPNOTSUPP; 980243a2e63SVlad Yasevich } 981243a2e63SVlad Yasevich 982243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 983243a2e63SVlad Yasevich { 984243a2e63SVlad Yasevich return -EOPNOTSUPP; 985243a2e63SVlad Yasevich } 986243a2e63SVlad Yasevich 987243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 988243a2e63SVlad Yasevich { 989243a2e63SVlad Yasevich } 990243a2e63SVlad Yasevich 991204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 992204177f3SToshiaki Makita { 993204177f3SToshiaki Makita } 994204177f3SToshiaki Makita 9955be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 9968580e211SToshiaki Makita { 9975be5a2dfSVlad Yasevich return 0; 9988580e211SToshiaki Makita } 9998580e211SToshiaki Makita 1000f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1001169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1002243a2e63SVlad Yasevich { 1003f418af63SNikolay Aleksandrov *changed = false; 1004243a2e63SVlad Yasevich return -EOPNOTSUPP; 1005243a2e63SVlad Yasevich } 1006243a2e63SVlad Yasevich 1007243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1008243a2e63SVlad Yasevich { 1009243a2e63SVlad Yasevich return -EOPNOTSUPP; 1010243a2e63SVlad Yasevich } 1011243a2e63SVlad Yasevich 1012243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1013243a2e63SVlad Yasevich { 1014243a2e63SVlad Yasevich } 1015243a2e63SVlad Yasevich 10162594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 10172594e906SNikolay Aleksandrov u16 vid) 1018a37b85c9SVlad Yasevich { 1019a37b85c9SVlad Yasevich return NULL; 1020a37b85c9SVlad Yasevich } 1021bc9a25d2SVlad Yasevich 1022169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1023169327d5SPetr Machata struct netlink_ext_ack *extack) 10245be5a2dfSVlad Yasevich { 10255be5a2dfSVlad Yasevich return 0; 10265be5a2dfSVlad Yasevich } 10275be5a2dfSVlad Yasevich 102878851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1029a37b85c9SVlad Yasevich { 1030a37b85c9SVlad Yasevich return 0; 1031a37b85c9SVlad Yasevich } 10322594e906SNikolay Aleksandrov 103377751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 103478851988SVlad Yasevich { 10353df6bf45SVlad Yasevich return 0; 103678851988SVlad Yasevich } 10372796d0c6SVlad Yasevich 1038a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1039a7854037SNikolay Aleksandrov unsigned long val) 1040a7854037SNikolay Aleksandrov { 1041a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1042a7854037SNikolay Aleksandrov } 10432594e906SNikolay Aleksandrov 10442594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 10452594e906SNikolay Aleksandrov u32 filter_mask) 10462594e906SNikolay Aleksandrov { 10472594e906SNikolay Aleksandrov return 0; 10482594e906SNikolay Aleksandrov } 10492594e906SNikolay Aleksandrov 10502594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 10512594e906SNikolay Aleksandrov const struct net_bridge *br) 10522594e906SNikolay Aleksandrov { 10532594e906SNikolay Aleksandrov return NULL; 10542594e906SNikolay Aleksandrov } 10552594e906SNikolay Aleksandrov 10562594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 10572594e906SNikolay Aleksandrov const struct net_bridge_port *p) 10582594e906SNikolay Aleksandrov { 10592594e906SNikolay Aleksandrov return NULL; 10602594e906SNikolay Aleksandrov } 1061907b1e6eSNikolay Aleksandrov 1062907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1063907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1064907b1e6eSNikolay Aleksandrov { 1065907b1e6eSNikolay Aleksandrov return NULL; 1066907b1e6eSNikolay Aleksandrov } 1067907b1e6eSNikolay Aleksandrov 1068907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1069907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1070907b1e6eSNikolay Aleksandrov { 1071907b1e6eSNikolay Aleksandrov return NULL; 1072907b1e6eSNikolay Aleksandrov } 1073a60c0903SNikolay Aleksandrov 1074a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1075a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1076a60c0903SNikolay Aleksandrov { 1077a60c0903SNikolay Aleksandrov } 1078243a2e63SVlad Yasevich #endif 1079243a2e63SVlad Yasevich 10801a4ba64dSPablo Neira Ayuso struct nf_br_ops { 10811a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 10821a4ba64dSPablo Neira Ayuso }; 10831a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 10841a4ba64dSPablo Neira Ayuso 10851da177e4SLinus Torvalds /* br_netfilter.c */ 108634666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 108734666d46SPablo Neira Ayuso int br_nf_core_init(void); 108834666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1089348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1090c0909713SStephen Hemminger #else 109134666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 109234666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 10934adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1094c0909713SStephen Hemminger #endif 10951da177e4SLinus Torvalds 10961da177e4SLinus Torvalds /* br_stp.c */ 1097775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1098348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1099348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1100348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 11011da177e4SLinus Torvalds 1102348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1103348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1104348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1105348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 110682dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 11079e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 110814f98f25Sstephen hemminger 110914f98f25Sstephen hemminger 11101da177e4SLinus Torvalds /* br_stp_if.c */ 1111348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1112348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1113348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 1114348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1115348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1116348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1117348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1118348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1119348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1120348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1121348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 11221da177e4SLinus Torvalds 11231da177e4SLinus Torvalds /* br_stp_bpdu.c */ 11247c85fbf0SPatrick McHardy struct stp_proto; 1125348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 11267c85fbf0SPatrick McHardy struct net_device *dev); 11271da177e4SLinus Torvalds 11281da177e4SLinus Torvalds /* br_stp_timer.c */ 1129348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1130348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1131348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 11321da177e4SLinus Torvalds 11331da177e4SLinus Torvalds /* br.c */ 1134e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1135da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1136da678292SMichał Mirosław #endif 11371da177e4SLinus Torvalds 113811dc1f36SStephen Hemminger /* br_netlink.c */ 1139149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1140348662a1SJoe Perches int br_netlink_init(void); 1141348662a1SJoe Perches void br_netlink_fini(void); 114292899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 114392899063SNikolay Aleksandrov const struct net_bridge_port *port); 11442fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 11452fd527b7SPetr Machata struct netlink_ext_ack *extack); 1146add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1147348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 114846c264daSNicolas Dichtel u32 filter_mask, int nlflags); 114911dc1f36SStephen Hemminger 11501da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 11511da177e4SLinus Torvalds /* br_sysfs_if.c */ 115252cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1153348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1154348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 11551da177e4SLinus Torvalds 11561da177e4SLinus Torvalds /* br_sysfs_br.c */ 1157348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1158348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 11591da177e4SLinus Torvalds 11601da177e4SLinus Torvalds #else 11611da177e4SLinus Torvalds 11620cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 11630cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 11640cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 11650cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 11661da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 11671da177e4SLinus Torvalds 11686bc506b4SIdo Schimmel /* br_switchdev.c */ 11696bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 11706bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 11716bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 11726bc506b4SIdo Schimmel struct sk_buff *skb); 11736bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 11746bc506b4SIdo Schimmel const struct sk_buff *skb); 11753922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 11763922285dSArkadi Sharshevsky unsigned long flags, 11773922285dSArkadi Sharshevsky unsigned long mask); 11786b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 11796b26b51bSArkadi Sharshevsky int type); 1180169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1181169327d5SPetr Machata struct netlink_ext_ack *extack); 1182d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1183f1c2eddfSIdo Schimmel 1184f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1185f1c2eddfSIdo Schimmel { 1186f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1187f1c2eddfSIdo Schimmel } 11886bc506b4SIdo Schimmel #else 11896bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 11906bc506b4SIdo Schimmel { 11916bc506b4SIdo Schimmel return 0; 11926bc506b4SIdo Schimmel } 11936bc506b4SIdo Schimmel 11946bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 11956bc506b4SIdo Schimmel struct sk_buff *skb) 11966bc506b4SIdo Schimmel { 11976bc506b4SIdo Schimmel } 11986bc506b4SIdo Schimmel 11996bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 12006bc506b4SIdo Schimmel const struct sk_buff *skb) 12016bc506b4SIdo Schimmel { 12026bc506b4SIdo Schimmel return true; 12036bc506b4SIdo Schimmel } 12043922285dSArkadi Sharshevsky 12053922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 12063922285dSArkadi Sharshevsky unsigned long flags, 12073922285dSArkadi Sharshevsky unsigned long mask) 12083922285dSArkadi Sharshevsky { 12093922285dSArkadi Sharshevsky return 0; 12103922285dSArkadi Sharshevsky } 12116b26b51bSArkadi Sharshevsky 1212d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1213169327d5SPetr Machata u16 vid, u16 flags, 1214169327d5SPetr Machata struct netlink_ext_ack *extack) 1215d66e4348SPetr Machata { 1216d66e4348SPetr Machata return -EOPNOTSUPP; 1217d66e4348SPetr Machata } 1218d66e4348SPetr Machata 1219d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1220d66e4348SPetr Machata { 1221d66e4348SPetr Machata return -EOPNOTSUPP; 1222d66e4348SPetr Machata } 1223d66e4348SPetr Machata 12246b26b51bSArkadi Sharshevsky static inline void 12256b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 12266b26b51bSArkadi Sharshevsky { 12276b26b51bSArkadi Sharshevsky } 1228f1c2eddfSIdo Schimmel 1229f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1230f1c2eddfSIdo Schimmel { 1231f1c2eddfSIdo Schimmel } 12326bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 12336bc506b4SIdo Schimmel 1234057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1235821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1236057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1237057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1238ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1239ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1240ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 12411da177e4SLinus Torvalds #endif 1242