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 349cde0708SStephen Hemminger #define BR_VERSION "2.3" 359cde0708SStephen Hemminger 36515853ccSstephen hemminger /* Control of forwarding link local multicast */ 37515853ccSstephen hemminger #define BR_GROUPFWD_DEFAULT 0 38784b58a3SBernhard Thaler /* Don't allow forwarding of control protocols like STP, MAC PAUSE and LACP */ 395af48b59SNikolay Aleksandrov enum { 405af48b59SNikolay Aleksandrov BR_GROUPFWD_STP = BIT(0), 415af48b59SNikolay Aleksandrov BR_GROUPFWD_MACPAUSE = BIT(1), 425af48b59SNikolay Aleksandrov BR_GROUPFWD_LACP = BIT(2), 435af48b59SNikolay Aleksandrov }; 445af48b59SNikolay Aleksandrov 455af48b59SNikolay Aleksandrov #define BR_GROUPFWD_RESTRICTED (BR_GROUPFWD_STP | BR_GROUPFWD_MACPAUSE | \ 465af48b59SNikolay Aleksandrov BR_GROUPFWD_LACP) 47f2808d22SToshiaki Makita /* The Nearest Customer Bridge Group Address, 01-80-C2-00-00-[00,0B,0C,0D,0F] */ 48f2808d22SToshiaki Makita #define BR_GROUPFWD_8021AD 0xB801u 49515853ccSstephen hemminger 509cde0708SStephen Hemminger /* Path to usermode spanning tree program */ 519cde0708SStephen Hemminger #define BR_STP_PROG "/sbin/bridge-stp" 528cbb512eSStephen Hemminger 531da177e4SLinus Torvalds typedef struct bridge_id bridge_id; 541da177e4SLinus Torvalds typedef struct mac_addr mac_addr; 551da177e4SLinus Torvalds typedef __u16 port_id; 561da177e4SLinus Torvalds 571da177e4SLinus Torvalds struct bridge_id 581da177e4SLinus Torvalds { 591da177e4SLinus Torvalds unsigned char prio[2]; 60e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 611da177e4SLinus Torvalds }; 621da177e4SLinus Torvalds 631da177e4SLinus Torvalds struct mac_addr 641da177e4SLinus Torvalds { 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 1072594e906SNikolay Aleksandrov /** 1082594e906SNikolay Aleksandrov * struct net_bridge_vlan - per-vlan entry 1092594e906SNikolay Aleksandrov * 1102594e906SNikolay Aleksandrov * @vnode: rhashtable member 1112594e906SNikolay Aleksandrov * @vid: VLAN id 1122594e906SNikolay Aleksandrov * @flags: bridge vlan flags 1136dada9b1SNikolay Aleksandrov * @stats: per-cpu VLAN statistics 1142594e906SNikolay Aleksandrov * @br: if MASTER flag set, this points to a bridge struct 1152594e906SNikolay Aleksandrov * @port: if MASTER flag unset, this points to a port struct 1162594e906SNikolay Aleksandrov * @refcnt: if MASTER flag set, this is bumped for each port referencing it 1172594e906SNikolay Aleksandrov * @brvlan: if MASTER flag unset, this points to the global per-VLAN context 1182594e906SNikolay Aleksandrov * for this VLAN entry 1192594e906SNikolay Aleksandrov * @vlist: sorted list of VLAN entries 1202594e906SNikolay Aleksandrov * @rcu: used for entry destruction 1212594e906SNikolay Aleksandrov * 1222594e906SNikolay Aleksandrov * This structure is shared between the global per-VLAN entries contained in 1232594e906SNikolay Aleksandrov * the bridge rhashtable and the local per-port per-VLAN entries contained in 1242594e906SNikolay Aleksandrov * the port's rhashtable. The union entries should be interpreted depending on 1252594e906SNikolay Aleksandrov * the entry flags that are set. 1262594e906SNikolay Aleksandrov */ 1272594e906SNikolay Aleksandrov struct net_bridge_vlan { 1282594e906SNikolay Aleksandrov struct rhash_head vnode; 129efa5356bSRoopa Prabhu struct rhash_head tnode; 1302594e906SNikolay Aleksandrov u16 vid; 1312594e906SNikolay Aleksandrov u16 flags; 1326dada9b1SNikolay Aleksandrov struct br_vlan_stats __percpu *stats; 133243a2e63SVlad Yasevich union { 134243a2e63SVlad Yasevich struct net_bridge *br; 1352594e906SNikolay Aleksandrov struct net_bridge_port *port; 1362594e906SNikolay Aleksandrov }; 1372594e906SNikolay Aleksandrov union { 13825127759SReshetova, Elena refcount_t refcnt; 1392594e906SNikolay Aleksandrov struct net_bridge_vlan *brvlan; 1402594e906SNikolay Aleksandrov }; 141efa5356bSRoopa Prabhu 142efa5356bSRoopa Prabhu struct br_tunnel_info tinfo; 143efa5356bSRoopa Prabhu 1442594e906SNikolay Aleksandrov struct list_head vlist; 1452594e906SNikolay Aleksandrov 146243a2e63SVlad Yasevich struct rcu_head rcu; 1472594e906SNikolay Aleksandrov }; 1482594e906SNikolay Aleksandrov 1492594e906SNikolay Aleksandrov /** 1502594e906SNikolay Aleksandrov * struct net_bridge_vlan_group 1512594e906SNikolay Aleksandrov * 1522594e906SNikolay Aleksandrov * @vlan_hash: VLAN entry rhashtable 1532594e906SNikolay Aleksandrov * @vlan_list: sorted VLAN entry list 1542594e906SNikolay Aleksandrov * @num_vlans: number of total VLAN entries 15577751ee8SNikolay Aleksandrov * @pvid: PVID VLAN id 1562594e906SNikolay Aleksandrov * 1572594e906SNikolay Aleksandrov * IMPORTANT: Be careful when checking if there're VLAN entries using list 1582594e906SNikolay Aleksandrov * primitives because the bridge can have entries in its list which 1592594e906SNikolay Aleksandrov * are just for global context but not for filtering, i.e. they have 1602594e906SNikolay Aleksandrov * the master flag set but not the brentry flag. If you have to check 1612594e906SNikolay Aleksandrov * if there're "real" entries in the bridge please test @num_vlans 1622594e906SNikolay Aleksandrov */ 1632594e906SNikolay Aleksandrov struct net_bridge_vlan_group { 1642594e906SNikolay Aleksandrov struct rhashtable vlan_hash; 165efa5356bSRoopa Prabhu struct rhashtable tunnel_hash; 1662594e906SNikolay Aleksandrov struct list_head vlan_list; 1676cbdceebSVlad Yasevich u16 num_vlans; 16877751ee8SNikolay Aleksandrov u16 pvid; 169243a2e63SVlad Yasevich }; 170243a2e63SVlad Yasevich 171eb793583SNikolay Aleksandrov struct net_bridge_fdb_key { 172eb793583SNikolay Aleksandrov mac_addr addr; 173eb793583SNikolay Aleksandrov u16 vlan_id; 174eb793583SNikolay Aleksandrov }; 175eb793583SNikolay Aleksandrov 1761214628cSNikolay Aleksandrov struct net_bridge_fdb_entry { 177eb793583SNikolay Aleksandrov struct rhash_head rhnode; 1781da177e4SLinus Torvalds struct net_bridge_port *dst; 1791da177e4SLinus Torvalds 180eb793583SNikolay Aleksandrov struct net_bridge_fdb_key key; 181eb793583SNikolay Aleksandrov struct hlist_node fdb_node; 18293859b13SJiri Pirko unsigned char is_local:1, 18393859b13SJiri Pirko is_static:1, 184cf6b8e1eSScott Feldman added_by_user:1, 1859fe8bcecSArkadi Sharshevsky added_by_external_learn:1, 1869fe8bcecSArkadi Sharshevsky offloaded:1; 1871214628cSNikolay Aleksandrov 1881214628cSNikolay Aleksandrov /* write-heavy members should not affect lookups */ 1891214628cSNikolay Aleksandrov unsigned long updated ____cacheline_aligned_in_smp; 1901214628cSNikolay Aleksandrov unsigned long used; 1911214628cSNikolay Aleksandrov 192b22fbf22SNikolay Aleksandrov struct rcu_head rcu; 1931da177e4SLinus Torvalds }; 1941da177e4SLinus Torvalds 1959d06b6d8SElad Raz #define MDB_PG_FLAGS_PERMANENT BIT(0) 1969d06b6d8SElad Raz #define MDB_PG_FLAGS_OFFLOAD BIT(1) 1979d06b6d8SElad Raz 198eb1d1641SHerbert Xu struct net_bridge_port_group { 199eb1d1641SHerbert Xu struct net_bridge_port *port; 200e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 201eb1d1641SHerbert Xu struct hlist_node mglist; 202eb1d1641SHerbert Xu struct rcu_head rcu; 203eb1d1641SHerbert Xu struct timer_list timer; 2048ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 2059d06b6d8SElad Raz unsigned char flags; 2066db6f0eaSFelix Fietkau unsigned char eth_addr[ETH_ALEN]; 207eb1d1641SHerbert Xu }; 208eb1d1641SHerbert Xu 209eb1d1641SHerbert Xu struct net_bridge_mdb_entry 210eb1d1641SHerbert Xu { 211eb1d1641SHerbert Xu struct hlist_node hlist[2]; 212eb1d1641SHerbert Xu struct net_bridge *br; 213e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 214eb1d1641SHerbert Xu struct rcu_head rcu; 215eb1d1641SHerbert Xu struct timer_list timer; 2168ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 217ff0fd34eSAndrew Lunn bool host_joined; 218eb1d1641SHerbert Xu }; 219eb1d1641SHerbert Xu 220eb1d1641SHerbert Xu struct net_bridge_mdb_htable 221eb1d1641SHerbert Xu { 222eb1d1641SHerbert Xu struct hlist_head *mhash; 223eb1d1641SHerbert Xu struct rcu_head rcu; 224eb1d1641SHerbert Xu struct net_bridge_mdb_htable *old; 225eb1d1641SHerbert Xu u32 size; 226eb1d1641SHerbert Xu u32 max; 227eb1d1641SHerbert Xu u32 secret; 228eb1d1641SHerbert Xu u32 ver; 229eb1d1641SHerbert Xu }; 230eb1d1641SHerbert Xu 2311f90c7f3SNikolay Aleksandrov struct net_bridge_port { 2321da177e4SLinus Torvalds struct net_bridge *br; 2331da177e4SLinus Torvalds struct net_device *dev; 2341da177e4SLinus Torvalds struct list_head list; 2351da177e4SLinus Torvalds 2361f90c7f3SNikolay Aleksandrov unsigned long flags; 2371f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 2381f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 2391f90c7f3SNikolay Aleksandrov #endif 2401f90c7f3SNikolay Aleksandrov 2411da177e4SLinus Torvalds /* STP */ 2421da177e4SLinus Torvalds u8 priority; 2431da177e4SLinus Torvalds u8 state; 2441da177e4SLinus Torvalds u16 port_no; 2451da177e4SLinus Torvalds unsigned char topology_change_ack; 2461da177e4SLinus Torvalds unsigned char config_pending; 2471da177e4SLinus Torvalds port_id port_id; 2481da177e4SLinus Torvalds port_id designated_port; 2491da177e4SLinus Torvalds bridge_id designated_root; 2501da177e4SLinus Torvalds bridge_id designated_bridge; 2511da177e4SLinus Torvalds u32 path_cost; 2521da177e4SLinus Torvalds u32 designated_cost; 2530c03150eSstephen hemminger unsigned long designated_age; 2541da177e4SLinus Torvalds 2551da177e4SLinus Torvalds struct timer_list forward_delay_timer; 2561da177e4SLinus Torvalds struct timer_list hold_timer; 2571da177e4SLinus Torvalds struct timer_list message_age_timer; 2581da177e4SLinus Torvalds struct kobject kobj; 2591da177e4SLinus Torvalds struct rcu_head rcu; 2603982d3d2SFischer, Anna 261eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 26290010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 263cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 26490010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 265cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 266eb1d1641SHerbert Xu unsigned char multicast_router; 2671080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 268eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 269eb1d1641SHerbert Xu struct hlist_head mglist; 270eb1d1641SHerbert Xu struct hlist_node rlist; 271eb1d1641SHerbert Xu #endif 272e0f43752SSimon Arlott 273e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 274e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 275e0f43752SSimon Arlott #endif 27691d2c34aSHerbert Xu 27791d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 27891d2c34aSHerbert Xu struct netpoll *np; 27991d2c34aSHerbert Xu #endif 2806bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 2816bc506b4SIdo Schimmel int offload_fwd_mark; 2826bc506b4SIdo Schimmel #endif 2835af48b59SNikolay Aleksandrov u16 group_fwd_mask; 2841da177e4SLinus Torvalds }; 2851da177e4SLinus Torvalds 286e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 287f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 288e028e4b8SVlad Yasevich 289f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 290f350a0a8SJiri Pirko 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 { 298ec1e5610SEric Dumazet return br_port_exists(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 { 3040baa10ffSArkadi Sharshevsky return br_port_exists(dev) ? 3050baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3060baa10ffSArkadi Sharshevsky } 3070baa10ffSArkadi Sharshevsky 3081f90c7f3SNikolay Aleksandrov struct net_bridge { 3091da177e4SLinus Torvalds spinlock_t lock; 3101f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 3111da177e4SLinus Torvalds struct list_head port_list; 3121da177e4SLinus Torvalds struct net_device *dev; 3138f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 3141f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3151f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3161f90c7f3SNikolay Aleksandrov u8 vlan_enabled; 3171f90c7f3SNikolay Aleksandrov u8 vlan_stats_enabled; 3181f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3191f90c7f3SNikolay Aleksandrov u16 default_pvid; 3201f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3211f90c7f3SNikolay Aleksandrov #endif 3221f90c7f3SNikolay Aleksandrov 323eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 32434666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 325efb6de9bSBernhard Thaler union { 3264adf0af6SSimon Wunderlich struct rtable fake_rtable; 327efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 328efb6de9bSBernhard Thaler }; 3294df53d8bSPatrick McHardy bool nf_call_iptables; 3304df53d8bSPatrick McHardy bool nf_call_ip6tables; 3314df53d8bSPatrick McHardy bool nf_call_arptables; 3324adf0af6SSimon Wunderlich #endif 333515853ccSstephen hemminger u16 group_fwd_mask; 334f2808d22SToshiaki Makita u16 group_fwd_mask_required; 335515853ccSstephen hemminger 3361da177e4SLinus Torvalds /* STP */ 3371da177e4SLinus Torvalds bridge_id designated_root; 3381da177e4SLinus Torvalds bridge_id bridge_id; 3391da177e4SLinus Torvalds u32 root_path_cost; 3401f90c7f3SNikolay Aleksandrov unsigned char topology_change; 3411f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 3421f90c7f3SNikolay Aleksandrov u16 root_port; 3431da177e4SLinus Torvalds unsigned long max_age; 3441da177e4SLinus Torvalds unsigned long hello_time; 3451da177e4SLinus Torvalds unsigned long forward_delay; 3461da177e4SLinus Torvalds unsigned long ageing_time; 34734d8acd8SVivien Didelot unsigned long bridge_max_age; 3481da177e4SLinus Torvalds unsigned long bridge_hello_time; 3491da177e4SLinus Torvalds unsigned long bridge_forward_delay; 35034d8acd8SVivien Didelot unsigned long bridge_ageing_time; 3511da177e4SLinus Torvalds 352fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 353204177f3SToshiaki Makita bool group_addr_set; 3549cde0708SStephen Hemminger 3559cde0708SStephen Hemminger enum { 3569cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 3579cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 3589cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 3599cde0708SStephen Hemminger } stp_enabled; 3609cde0708SStephen Hemminger 361eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 362eb1d1641SHerbert Xu unsigned char multicast_router; 363eb1d1641SHerbert Xu 364eb1d1641SHerbert Xu u8 multicast_disabled:1; 365c5c23260SHerbert Xu u8 multicast_querier:1; 3661c8ad5bfSCong Wang u8 multicast_query_use_ifaddr:1; 3670888d5f3Sdaniel u8 has_ipv6_addr:1; 3681080ab95SNikolay Aleksandrov u8 multicast_stats_enabled:1; 369eb1d1641SHerbert Xu 370eb1d1641SHerbert Xu u32 hash_elasticity; 371eb1d1641SHerbert Xu u32 hash_max; 372eb1d1641SHerbert Xu 373eb1d1641SHerbert Xu u32 multicast_last_member_count; 374eb1d1641SHerbert Xu u32 multicast_startup_query_count; 375eb1d1641SHerbert Xu 3765e923585SNikolay Aleksandrov u8 multicast_igmp_version; 3775e923585SNikolay Aleksandrov 378eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 379eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 380eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 381eb1d1641SHerbert Xu unsigned long multicast_query_interval; 382eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 383eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 384eb1d1641SHerbert Xu 385eb1d1641SHerbert Xu spinlock_t multicast_lock; 386e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 387eb1d1641SHerbert Xu struct hlist_head router_list; 388eb1d1641SHerbert Xu 389eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 39090010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 39190010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 392dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 3931080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 394cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 39590010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 39690010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 397dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 398aa2ae3e7SNikolay Aleksandrov u8 multicast_mld_version; 399cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 400eb1d1641SHerbert Xu #endif 401eb1d1641SHerbert Xu 4021da177e4SLinus Torvalds struct timer_list hello_timer; 4031da177e4SLinus Torvalds struct timer_list tcn_timer; 4041da177e4SLinus Torvalds struct timer_list topology_change_timer; 405f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 40643b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 407e028e4b8SVlad Yasevich u32 auto_cnt; 4086bc506b4SIdo Schimmel 4096bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4106bc506b4SIdo Schimmel int offload_fwd_mark; 4116bc506b4SIdo Schimmel #endif 412821f1b21SRoopa Prabhu bool neigh_suppress_enabled; 413eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4141da177e4SLinus Torvalds }; 4151da177e4SLinus Torvalds 41668b7c895SHerbert Xu struct br_input_skb_cb { 41768b7c895SHerbert Xu struct net_device *brdev; 41893fdd47eSHerbert Xu 41932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 420eb1d1641SHerbert Xu int igmp; 421eb1d1641SHerbert Xu int mrouters_only; 42232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 42393fdd47eSHerbert Xu 424842a9ae0SJouni Malinen bool proxyarp_replied; 42593fdd47eSHerbert Xu 42620adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 42720adfa1aSVlad Yasevich bool vlan_filtered; 42820adfa1aSVlad Yasevich #endif 4296bc506b4SIdo Schimmel 4306bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4316bc506b4SIdo Schimmel int offload_fwd_mark; 4326bc506b4SIdo Schimmel #endif 43368b7c895SHerbert Xu }; 43468b7c895SHerbert Xu 43568b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 43668b7c895SHerbert Xu 43732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 43832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 43932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 44032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 44132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 44232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 44328a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 44428a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 44528a16c97Sstephen hemminger 44628a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 44728a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 44828a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 44928a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 45028a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 45128a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 45228a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 45328a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 45428a16c97Sstephen hemminger 45528a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 45628a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 45728a16c97Sstephen hemminger 4581da177e4SLinus Torvalds /* called under bridge lock */ 4591da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 4601da177e4SLinus Torvalds { 4611da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 4621da177e4SLinus Torvalds } 4631da177e4SLinus Torvalds 4642594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 4652594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 4662594e906SNikolay Aleksandrov { 4672594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 4682594e906SNikolay Aleksandrov } 4692594e906SNikolay Aleksandrov 4702594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 4712594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 4722594e906SNikolay Aleksandrov { 4732594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 4742594e906SNikolay Aleksandrov } 4752594e906SNikolay Aleksandrov 4766be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 4772594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 4782594e906SNikolay Aleksandrov { 4792594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 4802594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 4812594e906SNikolay Aleksandrov return true; 4822594e906SNikolay Aleksandrov else 4832594e906SNikolay Aleksandrov return false; 4842594e906SNikolay Aleksandrov } 4852594e906SNikolay Aleksandrov 4862594e906SNikolay Aleksandrov return true; 4872594e906SNikolay Aleksandrov } 4882594e906SNikolay Aleksandrov 4891da177e4SLinus Torvalds /* br_device.c */ 490348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 491348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 492348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 493cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 49491d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 49591d2c34aSHerbert Xu struct sk_buff *skb) 49691d2c34aSHerbert Xu { 49791d2c34aSHerbert Xu struct netpoll *np = p->np; 49891d2c34aSHerbert Xu 49991d2c34aSHerbert Xu if (np) 50091d2c34aSHerbert Xu netpoll_send_skb(np, skb); 50191d2c34aSHerbert Xu } 50291d2c34aSHerbert Xu 503a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 504348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 50591d2c34aSHerbert Xu #else 5069f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 50791d2c34aSHerbert Xu struct sk_buff *skb) 50891d2c34aSHerbert Xu { 50991d2c34aSHerbert Xu } 51091d2c34aSHerbert Xu 511a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 51291d2c34aSHerbert Xu { 51391d2c34aSHerbert Xu return 0; 51491d2c34aSHerbert Xu } 51591d2c34aSHerbert Xu 51691d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 51791d2c34aSHerbert Xu { 51891d2c34aSHerbert Xu } 519cfb478daSstephen hemminger #endif 5201da177e4SLinus Torvalds 5211da177e4SLinus Torvalds /* br_fdb.c */ 522348662a1SJoe Perches int br_fdb_init(void); 523348662a1SJoe Perches void br_fdb_fini(void); 524eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 525eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 526348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 527424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 528424bb9c9SToshiaki Makita const struct net_bridge_port *p, 529424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 530348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 531348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 532f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 533348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 5341ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 535bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 536bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 537bfd0aeacSNikolay Aleksandrov __u16 vid); 538348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 539348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 540348662a1SJoe Perches unsigned long off); 541348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 542348662a1SJoe Perches const unsigned char *addr, u16 vid); 543348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 544a5642ab4SToshiaki Makita const unsigned char *addr, u16 vid, bool added_by_user); 54577162022SJohn Fastabend 546348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 547f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 548348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 549f6f6424bSJiri Pirko const unsigned char *addr, u16 vid, u16 nlh_flags); 550348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 551d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 5528db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 5538db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 5543aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 5553aeb6617SJiri Pirko const unsigned char *addr, u16 vid); 5563aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 5573aeb6617SJiri Pirko const unsigned char *addr, u16 vid); 5589fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 5599fe8bcecSArkadi Sharshevsky const unsigned char *addr, u16 vid); 5601da177e4SLinus Torvalds 5611da177e4SLinus Torvalds /* br_forward.c */ 5628addd5e7SNikolay Aleksandrov enum br_pkt_type { 5638addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 5648addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 5658addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 5668addd5e7SNikolay Aleksandrov }; 5670c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 568b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 56937b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 5700c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 57137b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 5728addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 5731da177e4SLinus Torvalds 5741da177e4SLinus Torvalds /* br_if.c */ 575348662a1SJoe Perches void br_port_carrier_check(struct net_bridge_port *p); 576348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 577348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 578ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 579ca752be0SDavid Ahern struct netlink_ext_ack *extack); 580348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 581348662a1SJoe Perches int br_min_mtu(const struct net_bridge *br); 582348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 583c8f44affSMichał Mirosław netdev_features_t features); 584e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 5852796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 5861da177e4SLinus Torvalds 5871da177e4SLinus Torvalds /* br_input.c */ 5880c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 589348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 5901da177e4SLinus Torvalds 591859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 592859828c0SJiri Pirko { 593859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 594859828c0SJiri Pirko } 595859828c0SJiri Pirko 596859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 597859828c0SJiri Pirko { 598859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 599859828c0SJiri Pirko } 600859828c0SJiri Pirko 6011da177e4SLinus Torvalds /* br_ioctl.c */ 602348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 603348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 604348662a1SJoe Perches void __user *arg); 6051da177e4SLinus Torvalds 606eb1d1641SHerbert Xu /* br_multicast.c */ 607eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 6082ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 609348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 610fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 611348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 612eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 6131080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 614348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 615348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 616348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 617348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 618348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 619348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 620e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 62137b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 62237b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 623348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 624348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 625348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 626348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 627348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 6285e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 629aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 630aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 631aa2ae3e7SNikolay Aleksandrov #endif 632348662a1SJoe Perches struct net_bridge_mdb_entry * 633348662a1SJoe Perches br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); 634348662a1SJoe Perches struct net_bridge_mdb_entry * 635348662a1SJoe Perches br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, 636348662a1SJoe Perches struct br_ip *group); 637348662a1SJoe Perches void br_multicast_free_pg(struct rcu_head *head); 638348662a1SJoe Perches struct net_bridge_port_group * 639348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 640762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 6416db6f0eaSFelix Fietkau unsigned char flags, const unsigned char *src); 642348662a1SJoe Perches void br_mdb_init(void); 643348662a1SJoe Perches void br_mdb_uninit(void); 64445ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 64545ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 646949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 647949f1e39SSatish Ashok int type); 6481080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 649a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 6501080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 651b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 6521080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 6531080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 6541080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 65585b35269SSridhar Samudrala 656cfd56754SCong Wang #define mlock_dereference(X, br) \ 657cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 658cfd56754SCong Wang 65985b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 66085b35269SSridhar Samudrala { 66185b35269SSridhar Samudrala return br->multicast_router == 2 || 66285b35269SSridhar Samudrala (br->multicast_router == 1 && 66385b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 66485b35269SSridhar Samudrala } 665b00589afSLinus Lüssing 666cc0fdd80SLinus Lüssing static inline bool 667cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 6680888d5f3Sdaniel struct bridge_mcast_other_query *querier, 6690888d5f3Sdaniel const bool is_ipv6) 670b00589afSLinus Lüssing { 6710888d5f3Sdaniel bool own_querier_enabled; 6720888d5f3Sdaniel 6730888d5f3Sdaniel if (br->multicast_querier) { 6740888d5f3Sdaniel if (is_ipv6 && !br->has_ipv6_addr) 6750888d5f3Sdaniel own_querier_enabled = false; 6760888d5f3Sdaniel else 6770888d5f3Sdaniel own_querier_enabled = true; 6780888d5f3Sdaniel } else { 6790888d5f3Sdaniel own_querier_enabled = false; 6800888d5f3Sdaniel } 6810888d5f3Sdaniel 682cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 6830888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 684cc0fdd80SLinus Lüssing } 685cc0fdd80SLinus Lüssing 686cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 687cc0fdd80SLinus Lüssing struct ethhdr *eth) 688cc0fdd80SLinus Lüssing { 689cc0fdd80SLinus Lüssing switch (eth->h_proto) { 690cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 6910888d5f3Sdaniel return __br_multicast_querier_exists(br, 6920888d5f3Sdaniel &br->ip4_other_query, false); 693cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 694cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 6950888d5f3Sdaniel return __br_multicast_querier_exists(br, 6960888d5f3Sdaniel &br->ip6_other_query, true); 697cc0fdd80SLinus Lüssing #endif 698cc0fdd80SLinus Lüssing default: 699cc0fdd80SLinus Lüssing return false; 700cc0fdd80SLinus Lüssing } 701b00589afSLinus Lüssing } 7021080ab95SNikolay Aleksandrov 7031080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 7041080ab95SNikolay Aleksandrov { 7051080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 7061080ab95SNikolay Aleksandrov } 707eb1d1641SHerbert Xu #else 708eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 709eb1d1641SHerbert Xu struct net_bridge_port *port, 71006499098SVlad Yasevich struct sk_buff *skb, 71106499098SVlad Yasevich u16 vid) 712eb1d1641SHerbert Xu { 713eb1d1641SHerbert Xu return 0; 714eb1d1641SHerbert Xu } 715eb1d1641SHerbert Xu 716eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 717fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 718eb1d1641SHerbert Xu { 719eb1d1641SHerbert Xu return NULL; 720eb1d1641SHerbert Xu } 721eb1d1641SHerbert Xu 7221080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 723eb1d1641SHerbert Xu { 7241080ab95SNikolay Aleksandrov return 0; 725eb1d1641SHerbert Xu } 726eb1d1641SHerbert Xu 727eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 728eb1d1641SHerbert Xu { 729eb1d1641SHerbert Xu } 730eb1d1641SHerbert Xu 731eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 732eb1d1641SHerbert Xu { 733eb1d1641SHerbert Xu } 734eb1d1641SHerbert Xu 735eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 736eb1d1641SHerbert Xu { 737eb1d1641SHerbert Xu } 738eb1d1641SHerbert Xu 739eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 740eb1d1641SHerbert Xu { 741eb1d1641SHerbert Xu } 742eb1d1641SHerbert Xu 743eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 744eb1d1641SHerbert Xu { 745eb1d1641SHerbert Xu } 746eb1d1641SHerbert Xu 747eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 748eb1d1641SHerbert Xu { 749eb1d1641SHerbert Xu } 7505cb5e947SHerbert Xu 751a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 752a7ce45a7SNikolay Aleksandrov { 753a7ce45a7SNikolay Aleksandrov } 754a7ce45a7SNikolay Aleksandrov 75537b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 75637b090e6SNikolay Aleksandrov struct sk_buff *skb, 75737b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 7585cb5e947SHerbert Xu { 7595cb5e947SHerbert Xu } 7605cb5e947SHerbert Xu 761eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 762eb1d1641SHerbert Xu { 76303aaa9e2SGustavo A. R. Silva return false; 764eb1d1641SHerbert Xu } 76537b090e6SNikolay Aleksandrov 766cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 767cc0fdd80SLinus Lüssing struct ethhdr *eth) 768b00589afSLinus Lüssing { 769b00589afSLinus Lüssing return false; 770b00589afSLinus Lüssing } 77137b090e6SNikolay Aleksandrov 772fdb184d1SRami Rosen static inline void br_mdb_init(void) 773fdb184d1SRami Rosen { 774fdb184d1SRami Rosen } 77537b090e6SNikolay Aleksandrov 776fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 777fdb184d1SRami Rosen { 778fdb184d1SRami Rosen } 7791080ab95SNikolay Aleksandrov 7801080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 7811080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 782a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 783a65056ecSNikolay Aleksandrov u8 type, u8 dir) 7841080ab95SNikolay Aleksandrov { 7851080ab95SNikolay Aleksandrov } 7861080ab95SNikolay Aleksandrov 7871080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 7881080ab95SNikolay Aleksandrov { 7891080ab95SNikolay Aleksandrov return 0; 7901080ab95SNikolay Aleksandrov } 7911080ab95SNikolay Aleksandrov 792b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 793b6fe0440SIdo Schimmel { 794b6fe0440SIdo Schimmel } 795b6fe0440SIdo Schimmel 7961080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 7971080ab95SNikolay Aleksandrov { 7981080ab95SNikolay Aleksandrov return 0; 7991080ab95SNikolay Aleksandrov } 80085b35269SSridhar Samudrala #endif 801eb1d1641SHerbert Xu 802243a2e63SVlad Yasevich /* br_vlan.c */ 803243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 80477751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 80577751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 8062594e906SNikolay Aleksandrov u16 *vid); 80777751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 80885f46c6bSVlad Yasevich const struct sk_buff *skb); 809e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 810348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 81111538d03SRoopa Prabhu const struct net_bridge_port *port, 8122594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 81378851988SVlad Yasevich struct sk_buff *skb); 814f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 815f418af63SNikolay Aleksandrov bool *changed); 816348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 817348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 8182594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 819204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 820a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 821348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 822d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 823204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 8246dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 8255be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 82696a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 8270f963b75SNikolay Aleksandrov int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid); 828f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 829f418af63SNikolay Aleksandrov bool *changed); 830348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 831348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 8325be5a2dfSVlad Yasevich int nbp_vlan_init(struct net_bridge_port *port); 8332594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 834a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 835a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 836a37b85c9SVlad Yasevich 8372594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 838a37b85c9SVlad Yasevich const struct net_bridge *br) 839a37b85c9SVlad Yasevich { 840907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 841a37b85c9SVlad Yasevich } 842a37b85c9SVlad Yasevich 8432594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 844a37b85c9SVlad Yasevich const struct net_bridge_port *p) 845a37b85c9SVlad Yasevich { 846907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 847907b1e6eSNikolay Aleksandrov } 848907b1e6eSNikolay Aleksandrov 849907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 850907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 851907b1e6eSNikolay Aleksandrov { 852907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 853907b1e6eSNikolay Aleksandrov } 854907b1e6eSNikolay Aleksandrov 855907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 856907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 857907b1e6eSNikolay Aleksandrov { 858907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 859a37b85c9SVlad Yasevich } 860a37b85c9SVlad Yasevich 861a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 862a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 863a37b85c9SVlad Yasevich */ 864a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 865a37b85c9SVlad Yasevich { 866a37b85c9SVlad Yasevich int err = 0; 867a37b85c9SVlad Yasevich 8682594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 869df8a39deSJiri Pirko *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; 8702594e906SNikolay Aleksandrov } else { 871a37b85c9SVlad Yasevich *vid = 0; 872a37b85c9SVlad Yasevich err = -EINVAL; 873a37b85c9SVlad Yasevich } 874a37b85c9SVlad Yasevich 875a37b85c9SVlad Yasevich return err; 876a37b85c9SVlad Yasevich } 87778851988SVlad Yasevich 87877751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 87978851988SVlad Yasevich { 88077751ee8SNikolay Aleksandrov if (!vg) 8815be5a2dfSVlad Yasevich return 0; 8825be5a2dfSVlad Yasevich 88378851988SVlad Yasevich smp_rmb(); 88477751ee8SNikolay Aleksandrov return vg->pvid; 88578851988SVlad Yasevich } 88678851988SVlad Yasevich 887243a2e63SVlad Yasevich #else 88877751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 88977751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 8902594e906SNikolay Aleksandrov struct sk_buff *skb, 8912594e906SNikolay Aleksandrov u16 *vid) 8922594e906SNikolay Aleksandrov { 8932594e906SNikolay Aleksandrov return true; 8942594e906SNikolay Aleksandrov } 8952594e906SNikolay Aleksandrov 8962594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 89785f46c6bSVlad Yasevich const struct sk_buff *skb) 89885f46c6bSVlad Yasevich { 89985f46c6bSVlad Yasevich return true; 90085f46c6bSVlad Yasevich } 90185f46c6bSVlad Yasevich 902e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 903e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 904e0d7968aSToshiaki Makita { 905e0d7968aSToshiaki Makita return true; 906e0d7968aSToshiaki Makita } 907e0d7968aSToshiaki Makita 90878851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 90911538d03SRoopa Prabhu const struct net_bridge_port *port, 9102594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 91178851988SVlad Yasevich struct sk_buff *skb) 91278851988SVlad Yasevich { 91378851988SVlad Yasevich return skb; 91478851988SVlad Yasevich } 91578851988SVlad Yasevich 916f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 917f418af63SNikolay Aleksandrov bool *changed) 918243a2e63SVlad Yasevich { 919f418af63SNikolay Aleksandrov *changed = false; 920243a2e63SVlad Yasevich return -EOPNOTSUPP; 921243a2e63SVlad Yasevich } 922243a2e63SVlad Yasevich 923243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 924243a2e63SVlad Yasevich { 925243a2e63SVlad Yasevich return -EOPNOTSUPP; 926243a2e63SVlad Yasevich } 927243a2e63SVlad Yasevich 928243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 929243a2e63SVlad Yasevich { 930243a2e63SVlad Yasevich } 931243a2e63SVlad Yasevich 932204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 933204177f3SToshiaki Makita { 934204177f3SToshiaki Makita } 935204177f3SToshiaki Makita 9365be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 9378580e211SToshiaki Makita { 9385be5a2dfSVlad Yasevich return 0; 9398580e211SToshiaki Makita } 9408580e211SToshiaki Makita 941f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 942f418af63SNikolay Aleksandrov bool *changed) 943243a2e63SVlad Yasevich { 944f418af63SNikolay Aleksandrov *changed = false; 945243a2e63SVlad Yasevich return -EOPNOTSUPP; 946243a2e63SVlad Yasevich } 947243a2e63SVlad Yasevich 948243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 949243a2e63SVlad Yasevich { 950243a2e63SVlad Yasevich return -EOPNOTSUPP; 951243a2e63SVlad Yasevich } 952243a2e63SVlad Yasevich 953243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 954243a2e63SVlad Yasevich { 955243a2e63SVlad Yasevich } 956243a2e63SVlad Yasevich 9572594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 9582594e906SNikolay Aleksandrov u16 vid) 959a37b85c9SVlad Yasevich { 960a37b85c9SVlad Yasevich return NULL; 961a37b85c9SVlad Yasevich } 962bc9a25d2SVlad Yasevich 9635be5a2dfSVlad Yasevich static inline int nbp_vlan_init(struct net_bridge_port *port) 9645be5a2dfSVlad Yasevich { 9655be5a2dfSVlad Yasevich return 0; 9665be5a2dfSVlad Yasevich } 9675be5a2dfSVlad Yasevich 96878851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 969a37b85c9SVlad Yasevich { 970a37b85c9SVlad Yasevich return 0; 971a37b85c9SVlad Yasevich } 9722594e906SNikolay Aleksandrov 97377751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 97478851988SVlad Yasevich { 9753df6bf45SVlad Yasevich return 0; 97678851988SVlad Yasevich } 9772796d0c6SVlad Yasevich 978a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 979a7854037SNikolay Aleksandrov unsigned long val) 980a7854037SNikolay Aleksandrov { 981a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 982a7854037SNikolay Aleksandrov } 9832594e906SNikolay Aleksandrov 9842594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 9852594e906SNikolay Aleksandrov u32 filter_mask) 9862594e906SNikolay Aleksandrov { 9872594e906SNikolay Aleksandrov return 0; 9882594e906SNikolay Aleksandrov } 9892594e906SNikolay Aleksandrov 9902594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 9912594e906SNikolay Aleksandrov const struct net_bridge *br) 9922594e906SNikolay Aleksandrov { 9932594e906SNikolay Aleksandrov return NULL; 9942594e906SNikolay Aleksandrov } 9952594e906SNikolay Aleksandrov 9962594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 9972594e906SNikolay Aleksandrov const struct net_bridge_port *p) 9982594e906SNikolay Aleksandrov { 9992594e906SNikolay Aleksandrov return NULL; 10002594e906SNikolay Aleksandrov } 1001907b1e6eSNikolay Aleksandrov 1002907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1003907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1004907b1e6eSNikolay Aleksandrov { 1005907b1e6eSNikolay Aleksandrov return NULL; 1006907b1e6eSNikolay Aleksandrov } 1007907b1e6eSNikolay Aleksandrov 1008907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1009907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1010907b1e6eSNikolay Aleksandrov { 1011907b1e6eSNikolay Aleksandrov return NULL; 1012907b1e6eSNikolay Aleksandrov } 1013a60c0903SNikolay Aleksandrov 1014a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1015a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1016a60c0903SNikolay Aleksandrov { 1017a60c0903SNikolay Aleksandrov } 1018243a2e63SVlad Yasevich #endif 1019243a2e63SVlad Yasevich 10201a4ba64dSPablo Neira Ayuso struct nf_br_ops { 10211a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 10221a4ba64dSPablo Neira Ayuso }; 10231a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 10241a4ba64dSPablo Neira Ayuso 10251da177e4SLinus Torvalds /* br_netfilter.c */ 102634666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 102734666d46SPablo Neira Ayuso int br_nf_core_init(void); 102834666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1029348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1030c0909713SStephen Hemminger #else 103134666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 103234666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 10334adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1034c0909713SStephen Hemminger #endif 10351da177e4SLinus Torvalds 10361da177e4SLinus Torvalds /* br_stp.c */ 1037775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1038348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1039348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1040348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 10411da177e4SLinus Torvalds 1042348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1043348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1044348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1045348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 104682dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 10479e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 104814f98f25Sstephen hemminger 104914f98f25Sstephen hemminger 10501da177e4SLinus Torvalds /* br_stp_if.c */ 1051348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1052348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1053348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 1054348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1055348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1056348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1057348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1058348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1059348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1060348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1061348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 10621da177e4SLinus Torvalds 10631da177e4SLinus Torvalds /* br_stp_bpdu.c */ 10647c85fbf0SPatrick McHardy struct stp_proto; 1065348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 10667c85fbf0SPatrick McHardy struct net_device *dev); 10671da177e4SLinus Torvalds 10681da177e4SLinus Torvalds /* br_stp_timer.c */ 1069348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1070348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1071348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 10721da177e4SLinus Torvalds 10731da177e4SLinus Torvalds /* br.c */ 1074e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1075da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1076da678292SMichał Mirosław #endif 10771da177e4SLinus Torvalds 107811dc1f36SStephen Hemminger /* br_netlink.c */ 1079149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1080348662a1SJoe Perches int br_netlink_init(void); 1081348662a1SJoe Perches void br_netlink_fini(void); 108292899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 108392899063SNikolay Aleksandrov const struct net_bridge_port *port); 1084add511b3SRoopa Prabhu int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1085add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1086348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 108746c264daSNicolas Dichtel u32 filter_mask, int nlflags); 108811dc1f36SStephen Hemminger 10891da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 10901da177e4SLinus Torvalds /* br_sysfs_if.c */ 109152cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1092348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1093348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 10941da177e4SLinus Torvalds 10951da177e4SLinus Torvalds /* br_sysfs_br.c */ 1096348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1097348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 10981da177e4SLinus Torvalds 10991da177e4SLinus Torvalds #else 11001da177e4SLinus Torvalds 11010cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 11020cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 11030cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 11040cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 11051da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 11061da177e4SLinus Torvalds 11076bc506b4SIdo Schimmel /* br_switchdev.c */ 11086bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 11096bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 11106bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 11116bc506b4SIdo Schimmel struct sk_buff *skb); 11126bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 11136bc506b4SIdo Schimmel const struct sk_buff *skb); 11143922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 11153922285dSArkadi Sharshevsky unsigned long flags, 11163922285dSArkadi Sharshevsky unsigned long mask); 11176b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 11186b26b51bSArkadi Sharshevsky int type); 1119f1c2eddfSIdo Schimmel 1120f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1121f1c2eddfSIdo Schimmel { 1122f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1123f1c2eddfSIdo Schimmel } 11246bc506b4SIdo Schimmel #else 11256bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 11266bc506b4SIdo Schimmel { 11276bc506b4SIdo Schimmel return 0; 11286bc506b4SIdo Schimmel } 11296bc506b4SIdo Schimmel 11306bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 11316bc506b4SIdo Schimmel struct sk_buff *skb) 11326bc506b4SIdo Schimmel { 11336bc506b4SIdo Schimmel } 11346bc506b4SIdo Schimmel 11356bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 11366bc506b4SIdo Schimmel const struct sk_buff *skb) 11376bc506b4SIdo Schimmel { 11386bc506b4SIdo Schimmel return true; 11396bc506b4SIdo Schimmel } 11403922285dSArkadi Sharshevsky 11413922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 11423922285dSArkadi Sharshevsky unsigned long flags, 11433922285dSArkadi Sharshevsky unsigned long mask) 11443922285dSArkadi Sharshevsky { 11453922285dSArkadi Sharshevsky return 0; 11463922285dSArkadi Sharshevsky } 11476b26b51bSArkadi Sharshevsky 11486b26b51bSArkadi Sharshevsky static inline void 11496b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 11506b26b51bSArkadi Sharshevsky { 11516b26b51bSArkadi Sharshevsky } 1152f1c2eddfSIdo Schimmel 1153f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1154f1c2eddfSIdo Schimmel { 1155f1c2eddfSIdo Schimmel } 11566bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 11576bc506b4SIdo Schimmel 1158057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1159821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1160057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1161057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1162ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1163ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1164ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 11651da177e4SLinus Torvalds #endif 1166