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 1711214628cSNikolay Aleksandrov struct net_bridge_fdb_entry { 1721da177e4SLinus Torvalds struct hlist_node hlist; 1731da177e4SLinus Torvalds struct net_bridge_port *dst; 1741da177e4SLinus Torvalds 1751da177e4SLinus Torvalds mac_addr addr; 176b22fbf22SNikolay Aleksandrov __u16 vlan_id; 17793859b13SJiri Pirko unsigned char is_local:1, 17893859b13SJiri Pirko is_static:1, 179cf6b8e1eSScott Feldman added_by_user:1, 1809fe8bcecSArkadi Sharshevsky added_by_external_learn:1, 1819fe8bcecSArkadi Sharshevsky offloaded:1; 1821214628cSNikolay Aleksandrov 1831214628cSNikolay Aleksandrov /* write-heavy members should not affect lookups */ 1841214628cSNikolay Aleksandrov unsigned long updated ____cacheline_aligned_in_smp; 1851214628cSNikolay Aleksandrov unsigned long used; 1861214628cSNikolay Aleksandrov 187b22fbf22SNikolay Aleksandrov struct rcu_head rcu; 1881da177e4SLinus Torvalds }; 1891da177e4SLinus Torvalds 1909d06b6d8SElad Raz #define MDB_PG_FLAGS_PERMANENT BIT(0) 1919d06b6d8SElad Raz #define MDB_PG_FLAGS_OFFLOAD BIT(1) 1929d06b6d8SElad Raz 193eb1d1641SHerbert Xu struct net_bridge_port_group { 194eb1d1641SHerbert Xu struct net_bridge_port *port; 195e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 196eb1d1641SHerbert Xu struct hlist_node mglist; 197eb1d1641SHerbert Xu struct rcu_head rcu; 198eb1d1641SHerbert Xu struct timer_list timer; 1998ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 2009d06b6d8SElad Raz unsigned char flags; 2016db6f0eaSFelix Fietkau unsigned char eth_addr[ETH_ALEN]; 202eb1d1641SHerbert Xu }; 203eb1d1641SHerbert Xu 204eb1d1641SHerbert Xu struct net_bridge_mdb_entry 205eb1d1641SHerbert Xu { 206eb1d1641SHerbert Xu struct hlist_node hlist[2]; 207eb1d1641SHerbert Xu struct net_bridge *br; 208e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 209eb1d1641SHerbert Xu struct rcu_head rcu; 210eb1d1641SHerbert Xu struct timer_list timer; 2118ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 2128a870178SHerbert Xu bool mglist; 213eb1d1641SHerbert Xu }; 214eb1d1641SHerbert Xu 215eb1d1641SHerbert Xu struct net_bridge_mdb_htable 216eb1d1641SHerbert Xu { 217eb1d1641SHerbert Xu struct hlist_head *mhash; 218eb1d1641SHerbert Xu struct rcu_head rcu; 219eb1d1641SHerbert Xu struct net_bridge_mdb_htable *old; 220eb1d1641SHerbert Xu u32 size; 221eb1d1641SHerbert Xu u32 max; 222eb1d1641SHerbert Xu u32 secret; 223eb1d1641SHerbert Xu u32 ver; 224eb1d1641SHerbert Xu }; 225eb1d1641SHerbert Xu 2261f90c7f3SNikolay Aleksandrov struct net_bridge_port { 2271da177e4SLinus Torvalds struct net_bridge *br; 2281da177e4SLinus Torvalds struct net_device *dev; 2291da177e4SLinus Torvalds struct list_head list; 2301da177e4SLinus Torvalds 2311f90c7f3SNikolay Aleksandrov unsigned long flags; 2321f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 2331f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 2341f90c7f3SNikolay Aleksandrov #endif 2351f90c7f3SNikolay Aleksandrov 2361da177e4SLinus Torvalds /* STP */ 2371da177e4SLinus Torvalds u8 priority; 2381da177e4SLinus Torvalds u8 state; 2391da177e4SLinus Torvalds u16 port_no; 2401da177e4SLinus Torvalds unsigned char topology_change_ack; 2411da177e4SLinus Torvalds unsigned char config_pending; 2421da177e4SLinus Torvalds port_id port_id; 2431da177e4SLinus Torvalds port_id designated_port; 2441da177e4SLinus Torvalds bridge_id designated_root; 2451da177e4SLinus Torvalds bridge_id designated_bridge; 2461da177e4SLinus Torvalds u32 path_cost; 2471da177e4SLinus Torvalds u32 designated_cost; 2480c03150eSstephen hemminger unsigned long designated_age; 2491da177e4SLinus Torvalds 2501da177e4SLinus Torvalds struct timer_list forward_delay_timer; 2511da177e4SLinus Torvalds struct timer_list hold_timer; 2521da177e4SLinus Torvalds struct timer_list message_age_timer; 2531da177e4SLinus Torvalds struct kobject kobj; 2541da177e4SLinus Torvalds struct rcu_head rcu; 2553982d3d2SFischer, Anna 256eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 25790010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 258cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 25990010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 260cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 261eb1d1641SHerbert Xu unsigned char multicast_router; 2621080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 263eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 264eb1d1641SHerbert Xu struct hlist_head mglist; 265eb1d1641SHerbert Xu struct hlist_node rlist; 266eb1d1641SHerbert Xu #endif 267e0f43752SSimon Arlott 268e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 269e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 270e0f43752SSimon Arlott #endif 27191d2c34aSHerbert Xu 27291d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 27391d2c34aSHerbert Xu struct netpoll *np; 27491d2c34aSHerbert Xu #endif 2756bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 2766bc506b4SIdo Schimmel int offload_fwd_mark; 2776bc506b4SIdo Schimmel #endif 2785af48b59SNikolay Aleksandrov u16 group_fwd_mask; 2791da177e4SLinus Torvalds }; 2801da177e4SLinus Torvalds 281e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 282f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 283e028e4b8SVlad Yasevich 284f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 285f350a0a8SJiri Pirko 286b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 287b5ed54e9Sstephen hemminger { 288716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 289b5ed54e9Sstephen hemminger } 290b5ed54e9Sstephen hemminger 2911fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 292b5ed54e9Sstephen hemminger { 293ec1e5610SEric Dumazet return br_port_exists(dev) ? 294ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 295b5ed54e9Sstephen hemminger } 296b5ed54e9Sstephen hemminger 2970baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 2980baa10ffSArkadi Sharshevsky { 2990baa10ffSArkadi Sharshevsky return br_port_exists(dev) ? 3000baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3010baa10ffSArkadi Sharshevsky } 3020baa10ffSArkadi Sharshevsky 3031f90c7f3SNikolay Aleksandrov struct net_bridge { 3041da177e4SLinus Torvalds spinlock_t lock; 3051f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 3061da177e4SLinus Torvalds struct list_head port_list; 3071da177e4SLinus Torvalds struct net_device *dev; 3088f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 3091f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3101f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3111f90c7f3SNikolay Aleksandrov u8 vlan_enabled; 3121f90c7f3SNikolay Aleksandrov u8 vlan_stats_enabled; 3131f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3141f90c7f3SNikolay Aleksandrov u16 default_pvid; 3151f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3161f90c7f3SNikolay Aleksandrov #endif 3171f90c7f3SNikolay Aleksandrov 3181da177e4SLinus Torvalds struct hlist_head hash[BR_HASH_SIZE]; 31934666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 320efb6de9bSBernhard Thaler union { 3214adf0af6SSimon Wunderlich struct rtable fake_rtable; 322efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 323efb6de9bSBernhard Thaler }; 3244df53d8bSPatrick McHardy bool nf_call_iptables; 3254df53d8bSPatrick McHardy bool nf_call_ip6tables; 3264df53d8bSPatrick McHardy bool nf_call_arptables; 3274adf0af6SSimon Wunderlich #endif 328515853ccSstephen hemminger u16 group_fwd_mask; 329f2808d22SToshiaki Makita u16 group_fwd_mask_required; 330515853ccSstephen hemminger 3311da177e4SLinus Torvalds /* STP */ 3321da177e4SLinus Torvalds bridge_id designated_root; 3331da177e4SLinus Torvalds bridge_id bridge_id; 3341da177e4SLinus Torvalds u32 root_path_cost; 3351f90c7f3SNikolay Aleksandrov unsigned char topology_change; 3361f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 3371f90c7f3SNikolay Aleksandrov u16 root_port; 3381da177e4SLinus Torvalds unsigned long max_age; 3391da177e4SLinus Torvalds unsigned long hello_time; 3401da177e4SLinus Torvalds unsigned long forward_delay; 3411da177e4SLinus Torvalds unsigned long ageing_time; 34234d8acd8SVivien Didelot unsigned long bridge_max_age; 3431da177e4SLinus Torvalds unsigned long bridge_hello_time; 3441da177e4SLinus Torvalds unsigned long bridge_forward_delay; 34534d8acd8SVivien Didelot unsigned long bridge_ageing_time; 3461da177e4SLinus Torvalds 347fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 348204177f3SToshiaki Makita bool group_addr_set; 3499cde0708SStephen Hemminger 3509cde0708SStephen Hemminger enum { 3519cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 3529cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 3539cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 3549cde0708SStephen Hemminger } stp_enabled; 3559cde0708SStephen Hemminger 356eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 357eb1d1641SHerbert Xu unsigned char multicast_router; 358eb1d1641SHerbert Xu 359eb1d1641SHerbert Xu u8 multicast_disabled:1; 360c5c23260SHerbert Xu u8 multicast_querier:1; 3611c8ad5bfSCong Wang u8 multicast_query_use_ifaddr:1; 3620888d5f3Sdaniel u8 has_ipv6_addr:1; 3631080ab95SNikolay Aleksandrov u8 multicast_stats_enabled:1; 364eb1d1641SHerbert Xu 365eb1d1641SHerbert Xu u32 hash_elasticity; 366eb1d1641SHerbert Xu u32 hash_max; 367eb1d1641SHerbert Xu 368eb1d1641SHerbert Xu u32 multicast_last_member_count; 369eb1d1641SHerbert Xu u32 multicast_startup_query_count; 370eb1d1641SHerbert Xu 3715e923585SNikolay Aleksandrov u8 multicast_igmp_version; 3725e923585SNikolay Aleksandrov 373eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 374eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 375eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 376eb1d1641SHerbert Xu unsigned long multicast_query_interval; 377eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 378eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 379eb1d1641SHerbert Xu 380eb1d1641SHerbert Xu spinlock_t multicast_lock; 381e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 382eb1d1641SHerbert Xu struct hlist_head router_list; 383eb1d1641SHerbert Xu 384eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 38590010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 38690010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 387dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 3881080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 389cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 39090010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 39190010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 392dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 393aa2ae3e7SNikolay Aleksandrov u8 multicast_mld_version; 394cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 395eb1d1641SHerbert Xu #endif 396eb1d1641SHerbert Xu 3971da177e4SLinus Torvalds struct timer_list hello_timer; 3981da177e4SLinus Torvalds struct timer_list tcn_timer; 3991da177e4SLinus Torvalds struct timer_list topology_change_timer; 400f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 40143b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 402e028e4b8SVlad Yasevich u32 auto_cnt; 4036bc506b4SIdo Schimmel 4046bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4056bc506b4SIdo Schimmel int offload_fwd_mark; 4066bc506b4SIdo Schimmel #endif 407821f1b21SRoopa Prabhu bool neigh_suppress_enabled; 4081da177e4SLinus Torvalds }; 4091da177e4SLinus Torvalds 41068b7c895SHerbert Xu struct br_input_skb_cb { 41168b7c895SHerbert Xu struct net_device *brdev; 41293fdd47eSHerbert Xu 41332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 414eb1d1641SHerbert Xu int igmp; 415eb1d1641SHerbert Xu int mrouters_only; 41632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 41793fdd47eSHerbert Xu 418842a9ae0SJouni Malinen bool proxyarp_replied; 41993fdd47eSHerbert Xu 42020adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 42120adfa1aSVlad Yasevich bool vlan_filtered; 42220adfa1aSVlad Yasevich #endif 4236bc506b4SIdo Schimmel 4246bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4256bc506b4SIdo Schimmel int offload_fwd_mark; 4266bc506b4SIdo Schimmel #endif 42768b7c895SHerbert Xu }; 42868b7c895SHerbert Xu 42968b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 43068b7c895SHerbert Xu 43132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 43232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 43332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 43432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 43532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 43632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 43728a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 43828a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 43928a16c97Sstephen hemminger 44028a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 44128a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 44228a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 44328a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 44428a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 44528a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 44628a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 44728a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 44828a16c97Sstephen hemminger 44928a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 45028a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 45128a16c97Sstephen hemminger 4521da177e4SLinus Torvalds /* called under bridge lock */ 4531da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 4541da177e4SLinus Torvalds { 4551da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 4561da177e4SLinus Torvalds } 4571da177e4SLinus Torvalds 4582594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 4592594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 4602594e906SNikolay Aleksandrov { 4612594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 4622594e906SNikolay Aleksandrov } 4632594e906SNikolay Aleksandrov 4642594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 4652594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 4662594e906SNikolay Aleksandrov { 4672594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 4682594e906SNikolay Aleksandrov } 4692594e906SNikolay Aleksandrov 4706be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 4712594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 4722594e906SNikolay Aleksandrov { 4732594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 4742594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 4752594e906SNikolay Aleksandrov return true; 4762594e906SNikolay Aleksandrov else 4772594e906SNikolay Aleksandrov return false; 4782594e906SNikolay Aleksandrov } 4792594e906SNikolay Aleksandrov 4802594e906SNikolay Aleksandrov return true; 4812594e906SNikolay Aleksandrov } 4822594e906SNikolay Aleksandrov 4831da177e4SLinus Torvalds /* br_device.c */ 484348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 485348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 486348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 487cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 48891d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 48991d2c34aSHerbert Xu struct sk_buff *skb) 49091d2c34aSHerbert Xu { 49191d2c34aSHerbert Xu struct netpoll *np = p->np; 49291d2c34aSHerbert Xu 49391d2c34aSHerbert Xu if (np) 49491d2c34aSHerbert Xu netpoll_send_skb(np, skb); 49591d2c34aSHerbert Xu } 49691d2c34aSHerbert Xu 497a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 498348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 49991d2c34aSHerbert Xu #else 5009f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 50191d2c34aSHerbert Xu struct sk_buff *skb) 50291d2c34aSHerbert Xu { 50391d2c34aSHerbert Xu } 50491d2c34aSHerbert Xu 505a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 50691d2c34aSHerbert Xu { 50791d2c34aSHerbert Xu return 0; 50891d2c34aSHerbert Xu } 50991d2c34aSHerbert Xu 51091d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 51191d2c34aSHerbert Xu { 51291d2c34aSHerbert Xu } 513cfb478daSstephen hemminger #endif 5141da177e4SLinus Torvalds 5151da177e4SLinus Torvalds /* br_fdb.c */ 516348662a1SJoe Perches int br_fdb_init(void); 517348662a1SJoe Perches void br_fdb_fini(void); 518348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 519424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 520424bb9c9SToshiaki Makita const struct net_bridge_port *p, 521424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 522348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 523348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 524f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 525348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 5261ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 527bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 528bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 529bfd0aeacSNikolay Aleksandrov __u16 vid); 530348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 531348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 532348662a1SJoe Perches unsigned long off); 533348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 534348662a1SJoe Perches const unsigned char *addr, u16 vid); 535348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 536a5642ab4SToshiaki Makita const unsigned char *addr, u16 vid, bool added_by_user); 53777162022SJohn Fastabend 538348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 539f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 540348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 541f6f6424bSJiri Pirko const unsigned char *addr, u16 vid, u16 nlh_flags); 542348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 543d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 5448db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 5458db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 5463aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 5473aeb6617SJiri Pirko const unsigned char *addr, u16 vid); 5483aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 5493aeb6617SJiri Pirko const unsigned char *addr, u16 vid); 5509fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 5519fe8bcecSArkadi Sharshevsky const unsigned char *addr, u16 vid); 5521da177e4SLinus Torvalds 5531da177e4SLinus Torvalds /* br_forward.c */ 5548addd5e7SNikolay Aleksandrov enum br_pkt_type { 5558addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 5568addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 5578addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 5588addd5e7SNikolay Aleksandrov }; 5590c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 560b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 56137b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 5620c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 56337b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 5648addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 5651da177e4SLinus Torvalds 5661da177e4SLinus Torvalds /* br_if.c */ 567348662a1SJoe Perches void br_port_carrier_check(struct net_bridge_port *p); 568348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 569348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 570ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 571ca752be0SDavid Ahern struct netlink_ext_ack *extack); 572348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 573348662a1SJoe Perches int br_min_mtu(const struct net_bridge *br); 574348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 575c8f44affSMichał Mirosław netdev_features_t features); 576e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 5772796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 5781da177e4SLinus Torvalds 5791da177e4SLinus Torvalds /* br_input.c */ 5800c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 581348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 5821da177e4SLinus Torvalds 583859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 584859828c0SJiri Pirko { 585859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 586859828c0SJiri Pirko } 587859828c0SJiri Pirko 588859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 589859828c0SJiri Pirko { 590859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 591859828c0SJiri Pirko } 592859828c0SJiri Pirko 5931da177e4SLinus Torvalds /* br_ioctl.c */ 594348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 595348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 596348662a1SJoe Perches void __user *arg); 5971da177e4SLinus Torvalds 598eb1d1641SHerbert Xu /* br_multicast.c */ 599eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 6002ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 601348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 602fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 603348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 604eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 6051080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 606348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 607348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 608348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 609348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 610348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 611348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 612e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 61337b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 61437b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 615348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 616348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 617348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 618348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 619348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 6205e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 621aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 622aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 623aa2ae3e7SNikolay Aleksandrov #endif 624348662a1SJoe Perches struct net_bridge_mdb_entry * 625348662a1SJoe Perches br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); 626348662a1SJoe Perches struct net_bridge_mdb_entry * 627348662a1SJoe Perches br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, 628348662a1SJoe Perches struct br_ip *group); 629348662a1SJoe Perches void br_multicast_free_pg(struct rcu_head *head); 630348662a1SJoe Perches struct net_bridge_port_group * 631348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 632762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 6336db6f0eaSFelix Fietkau unsigned char flags, const unsigned char *src); 634348662a1SJoe Perches void br_mdb_init(void); 635348662a1SJoe Perches void br_mdb_uninit(void); 63645ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 63745ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 638949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 639949f1e39SSatish Ashok int type); 6401080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 641a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 6421080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 643b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 6441080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 6451080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 6461080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 64785b35269SSridhar Samudrala 648cfd56754SCong Wang #define mlock_dereference(X, br) \ 649cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 650cfd56754SCong Wang 65185b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 65285b35269SSridhar Samudrala { 65385b35269SSridhar Samudrala return br->multicast_router == 2 || 65485b35269SSridhar Samudrala (br->multicast_router == 1 && 65585b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 65685b35269SSridhar Samudrala } 657b00589afSLinus Lüssing 658cc0fdd80SLinus Lüssing static inline bool 659cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 6600888d5f3Sdaniel struct bridge_mcast_other_query *querier, 6610888d5f3Sdaniel const bool is_ipv6) 662b00589afSLinus Lüssing { 6630888d5f3Sdaniel bool own_querier_enabled; 6640888d5f3Sdaniel 6650888d5f3Sdaniel if (br->multicast_querier) { 6660888d5f3Sdaniel if (is_ipv6 && !br->has_ipv6_addr) 6670888d5f3Sdaniel own_querier_enabled = false; 6680888d5f3Sdaniel else 6690888d5f3Sdaniel own_querier_enabled = true; 6700888d5f3Sdaniel } else { 6710888d5f3Sdaniel own_querier_enabled = false; 6720888d5f3Sdaniel } 6730888d5f3Sdaniel 674cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 6750888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 676cc0fdd80SLinus Lüssing } 677cc0fdd80SLinus Lüssing 678cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 679cc0fdd80SLinus Lüssing struct ethhdr *eth) 680cc0fdd80SLinus Lüssing { 681cc0fdd80SLinus Lüssing switch (eth->h_proto) { 682cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 6830888d5f3Sdaniel return __br_multicast_querier_exists(br, 6840888d5f3Sdaniel &br->ip4_other_query, false); 685cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 686cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 6870888d5f3Sdaniel return __br_multicast_querier_exists(br, 6880888d5f3Sdaniel &br->ip6_other_query, true); 689cc0fdd80SLinus Lüssing #endif 690cc0fdd80SLinus Lüssing default: 691cc0fdd80SLinus Lüssing return false; 692cc0fdd80SLinus Lüssing } 693b00589afSLinus Lüssing } 6941080ab95SNikolay Aleksandrov 6951080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 6961080ab95SNikolay Aleksandrov { 6971080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 6981080ab95SNikolay Aleksandrov } 699eb1d1641SHerbert Xu #else 700eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 701eb1d1641SHerbert Xu struct net_bridge_port *port, 70206499098SVlad Yasevich struct sk_buff *skb, 70306499098SVlad Yasevich u16 vid) 704eb1d1641SHerbert Xu { 705eb1d1641SHerbert Xu return 0; 706eb1d1641SHerbert Xu } 707eb1d1641SHerbert Xu 708eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 709fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 710eb1d1641SHerbert Xu { 711eb1d1641SHerbert Xu return NULL; 712eb1d1641SHerbert Xu } 713eb1d1641SHerbert Xu 7141080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 715eb1d1641SHerbert Xu { 7161080ab95SNikolay Aleksandrov return 0; 717eb1d1641SHerbert Xu } 718eb1d1641SHerbert Xu 719eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 720eb1d1641SHerbert Xu { 721eb1d1641SHerbert Xu } 722eb1d1641SHerbert Xu 723eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 724eb1d1641SHerbert Xu { 725eb1d1641SHerbert Xu } 726eb1d1641SHerbert Xu 727eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 728eb1d1641SHerbert Xu { 729eb1d1641SHerbert Xu } 730eb1d1641SHerbert Xu 731eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 732eb1d1641SHerbert Xu { 733eb1d1641SHerbert Xu } 734eb1d1641SHerbert Xu 735eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 736eb1d1641SHerbert Xu { 737eb1d1641SHerbert Xu } 738eb1d1641SHerbert Xu 739eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 740eb1d1641SHerbert Xu { 741eb1d1641SHerbert Xu } 7425cb5e947SHerbert Xu 743a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 744a7ce45a7SNikolay Aleksandrov { 745a7ce45a7SNikolay Aleksandrov } 746a7ce45a7SNikolay Aleksandrov 74737b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 74837b090e6SNikolay Aleksandrov struct sk_buff *skb, 74937b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 7505cb5e947SHerbert Xu { 7515cb5e947SHerbert Xu } 7525cb5e947SHerbert Xu 753eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 754eb1d1641SHerbert Xu { 75585b35269SSridhar Samudrala return 0; 756eb1d1641SHerbert Xu } 75737b090e6SNikolay Aleksandrov 758cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 759cc0fdd80SLinus Lüssing struct ethhdr *eth) 760b00589afSLinus Lüssing { 761b00589afSLinus Lüssing return false; 762b00589afSLinus Lüssing } 76337b090e6SNikolay Aleksandrov 764fdb184d1SRami Rosen static inline void br_mdb_init(void) 765fdb184d1SRami Rosen { 766fdb184d1SRami Rosen } 76737b090e6SNikolay Aleksandrov 768fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 769fdb184d1SRami Rosen { 770fdb184d1SRami Rosen } 7711080ab95SNikolay Aleksandrov 7721080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 7731080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 774a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 775a65056ecSNikolay Aleksandrov u8 type, u8 dir) 7761080ab95SNikolay Aleksandrov { 7771080ab95SNikolay Aleksandrov } 7781080ab95SNikolay Aleksandrov 7791080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 7801080ab95SNikolay Aleksandrov { 7811080ab95SNikolay Aleksandrov return 0; 7821080ab95SNikolay Aleksandrov } 7831080ab95SNikolay Aleksandrov 784b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 785b6fe0440SIdo Schimmel { 786b6fe0440SIdo Schimmel } 787b6fe0440SIdo Schimmel 7881080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 7891080ab95SNikolay Aleksandrov { 7901080ab95SNikolay Aleksandrov return 0; 7911080ab95SNikolay Aleksandrov } 79285b35269SSridhar Samudrala #endif 793eb1d1641SHerbert Xu 794243a2e63SVlad Yasevich /* br_vlan.c */ 795243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 79677751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 79777751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 7982594e906SNikolay Aleksandrov u16 *vid); 79977751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 80085f46c6bSVlad Yasevich const struct sk_buff *skb); 801e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 802348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 80311538d03SRoopa Prabhu const struct net_bridge_port *port, 8042594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 80578851988SVlad Yasevich struct sk_buff *skb); 806f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 807f418af63SNikolay Aleksandrov bool *changed); 808348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 809348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 8102594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 811204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 812a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 813348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 814d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 815204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 8166dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 8175be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 81896a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 8190f963b75SNikolay Aleksandrov int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid); 820f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 821f418af63SNikolay Aleksandrov bool *changed); 822348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 823348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 8245be5a2dfSVlad Yasevich int nbp_vlan_init(struct net_bridge_port *port); 8252594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 826a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 827a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 828a37b85c9SVlad Yasevich 8292594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 830a37b85c9SVlad Yasevich const struct net_bridge *br) 831a37b85c9SVlad Yasevich { 832907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 833a37b85c9SVlad Yasevich } 834a37b85c9SVlad Yasevich 8352594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 836a37b85c9SVlad Yasevich const struct net_bridge_port *p) 837a37b85c9SVlad Yasevich { 838907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 839907b1e6eSNikolay Aleksandrov } 840907b1e6eSNikolay Aleksandrov 841907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 842907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 843907b1e6eSNikolay Aleksandrov { 844907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 845907b1e6eSNikolay Aleksandrov } 846907b1e6eSNikolay Aleksandrov 847907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 848907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 849907b1e6eSNikolay Aleksandrov { 850907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 851a37b85c9SVlad Yasevich } 852a37b85c9SVlad Yasevich 853a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 854a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 855a37b85c9SVlad Yasevich */ 856a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 857a37b85c9SVlad Yasevich { 858a37b85c9SVlad Yasevich int err = 0; 859a37b85c9SVlad Yasevich 8602594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 861df8a39deSJiri Pirko *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; 8622594e906SNikolay Aleksandrov } else { 863a37b85c9SVlad Yasevich *vid = 0; 864a37b85c9SVlad Yasevich err = -EINVAL; 865a37b85c9SVlad Yasevich } 866a37b85c9SVlad Yasevich 867a37b85c9SVlad Yasevich return err; 868a37b85c9SVlad Yasevich } 86978851988SVlad Yasevich 87077751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 87178851988SVlad Yasevich { 87277751ee8SNikolay Aleksandrov if (!vg) 8735be5a2dfSVlad Yasevich return 0; 8745be5a2dfSVlad Yasevich 87578851988SVlad Yasevich smp_rmb(); 87677751ee8SNikolay Aleksandrov return vg->pvid; 87778851988SVlad Yasevich } 87878851988SVlad Yasevich 879243a2e63SVlad Yasevich #else 88077751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 88177751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 8822594e906SNikolay Aleksandrov struct sk_buff *skb, 8832594e906SNikolay Aleksandrov u16 *vid) 8842594e906SNikolay Aleksandrov { 8852594e906SNikolay Aleksandrov return true; 8862594e906SNikolay Aleksandrov } 8872594e906SNikolay Aleksandrov 8882594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 88985f46c6bSVlad Yasevich const struct sk_buff *skb) 89085f46c6bSVlad Yasevich { 89185f46c6bSVlad Yasevich return true; 89285f46c6bSVlad Yasevich } 89385f46c6bSVlad Yasevich 894e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 895e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 896e0d7968aSToshiaki Makita { 897e0d7968aSToshiaki Makita return true; 898e0d7968aSToshiaki Makita } 899e0d7968aSToshiaki Makita 90078851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 90111538d03SRoopa Prabhu const struct net_bridge_port *port, 9022594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 90378851988SVlad Yasevich struct sk_buff *skb) 90478851988SVlad Yasevich { 90578851988SVlad Yasevich return skb; 90678851988SVlad Yasevich } 90778851988SVlad Yasevich 908f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 909f418af63SNikolay Aleksandrov bool *changed) 910243a2e63SVlad Yasevich { 911f418af63SNikolay Aleksandrov *changed = false; 912243a2e63SVlad Yasevich return -EOPNOTSUPP; 913243a2e63SVlad Yasevich } 914243a2e63SVlad Yasevich 915243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 916243a2e63SVlad Yasevich { 917243a2e63SVlad Yasevich return -EOPNOTSUPP; 918243a2e63SVlad Yasevich } 919243a2e63SVlad Yasevich 920243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 921243a2e63SVlad Yasevich { 922243a2e63SVlad Yasevich } 923243a2e63SVlad Yasevich 924204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 925204177f3SToshiaki Makita { 926204177f3SToshiaki Makita } 927204177f3SToshiaki Makita 9285be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 9298580e211SToshiaki Makita { 9305be5a2dfSVlad Yasevich return 0; 9318580e211SToshiaki Makita } 9328580e211SToshiaki Makita 933f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 934f418af63SNikolay Aleksandrov bool *changed) 935243a2e63SVlad Yasevich { 936f418af63SNikolay Aleksandrov *changed = false; 937243a2e63SVlad Yasevich return -EOPNOTSUPP; 938243a2e63SVlad Yasevich } 939243a2e63SVlad Yasevich 940243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 941243a2e63SVlad Yasevich { 942243a2e63SVlad Yasevich return -EOPNOTSUPP; 943243a2e63SVlad Yasevich } 944243a2e63SVlad Yasevich 945243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 946243a2e63SVlad Yasevich { 947243a2e63SVlad Yasevich } 948243a2e63SVlad Yasevich 9492594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 9502594e906SNikolay Aleksandrov u16 vid) 951a37b85c9SVlad Yasevich { 952a37b85c9SVlad Yasevich return NULL; 953a37b85c9SVlad Yasevich } 954bc9a25d2SVlad Yasevich 9555be5a2dfSVlad Yasevich static inline int nbp_vlan_init(struct net_bridge_port *port) 9565be5a2dfSVlad Yasevich { 9575be5a2dfSVlad Yasevich return 0; 9585be5a2dfSVlad Yasevich } 9595be5a2dfSVlad Yasevich 96078851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 961a37b85c9SVlad Yasevich { 962a37b85c9SVlad Yasevich return 0; 963a37b85c9SVlad Yasevich } 9642594e906SNikolay Aleksandrov 96577751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 96678851988SVlad Yasevich { 9673df6bf45SVlad Yasevich return 0; 96878851988SVlad Yasevich } 9692796d0c6SVlad Yasevich 970a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 971a7854037SNikolay Aleksandrov unsigned long val) 972a7854037SNikolay Aleksandrov { 973a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 974a7854037SNikolay Aleksandrov } 9752594e906SNikolay Aleksandrov 9762594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 9772594e906SNikolay Aleksandrov u32 filter_mask) 9782594e906SNikolay Aleksandrov { 9792594e906SNikolay Aleksandrov return 0; 9802594e906SNikolay Aleksandrov } 9812594e906SNikolay Aleksandrov 9822594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 9832594e906SNikolay Aleksandrov const struct net_bridge *br) 9842594e906SNikolay Aleksandrov { 9852594e906SNikolay Aleksandrov return NULL; 9862594e906SNikolay Aleksandrov } 9872594e906SNikolay Aleksandrov 9882594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 9892594e906SNikolay Aleksandrov const struct net_bridge_port *p) 9902594e906SNikolay Aleksandrov { 9912594e906SNikolay Aleksandrov return NULL; 9922594e906SNikolay Aleksandrov } 993907b1e6eSNikolay Aleksandrov 994907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 995907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 996907b1e6eSNikolay Aleksandrov { 997907b1e6eSNikolay Aleksandrov return NULL; 998907b1e6eSNikolay Aleksandrov } 999907b1e6eSNikolay Aleksandrov 1000907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1001907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1002907b1e6eSNikolay Aleksandrov { 1003907b1e6eSNikolay Aleksandrov return NULL; 1004907b1e6eSNikolay Aleksandrov } 1005a60c0903SNikolay Aleksandrov 1006a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1007a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1008a60c0903SNikolay Aleksandrov { 1009a60c0903SNikolay Aleksandrov } 1010243a2e63SVlad Yasevich #endif 1011243a2e63SVlad Yasevich 10121a4ba64dSPablo Neira Ayuso struct nf_br_ops { 10131a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 10141a4ba64dSPablo Neira Ayuso }; 10151a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 10161a4ba64dSPablo Neira Ayuso 10171da177e4SLinus Torvalds /* br_netfilter.c */ 101834666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 101934666d46SPablo Neira Ayuso int br_nf_core_init(void); 102034666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1021348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1022c0909713SStephen Hemminger #else 102334666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 102434666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 10254adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1026c0909713SStephen Hemminger #endif 10271da177e4SLinus Torvalds 10281da177e4SLinus Torvalds /* br_stp.c */ 1029775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1030348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1031348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1032348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 10331da177e4SLinus Torvalds 1034348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1035348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1036348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1037348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 103882dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 10399e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 104014f98f25Sstephen hemminger 104114f98f25Sstephen hemminger 10421da177e4SLinus Torvalds /* br_stp_if.c */ 1043348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1044348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1045348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 1046348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1047348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1048348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1049348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1050348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1051348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1052348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1053348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 10541da177e4SLinus Torvalds 10551da177e4SLinus Torvalds /* br_stp_bpdu.c */ 10567c85fbf0SPatrick McHardy struct stp_proto; 1057348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 10587c85fbf0SPatrick McHardy struct net_device *dev); 10591da177e4SLinus Torvalds 10601da177e4SLinus Torvalds /* br_stp_timer.c */ 1061348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1062348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1063348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 10641da177e4SLinus Torvalds 10651da177e4SLinus Torvalds /* br.c */ 1066e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1067da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1068da678292SMichał Mirosław #endif 10691da177e4SLinus Torvalds 107011dc1f36SStephen Hemminger /* br_netlink.c */ 1071149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1072348662a1SJoe Perches int br_netlink_init(void); 1073348662a1SJoe Perches void br_netlink_fini(void); 107492899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 107592899063SNikolay Aleksandrov const struct net_bridge_port *port); 1076add511b3SRoopa Prabhu int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1077add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1078348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 107946c264daSNicolas Dichtel u32 filter_mask, int nlflags); 108011dc1f36SStephen Hemminger 10811da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 10821da177e4SLinus Torvalds /* br_sysfs_if.c */ 108352cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1084348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1085348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 10861da177e4SLinus Torvalds 10871da177e4SLinus Torvalds /* br_sysfs_br.c */ 1088348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1089348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 10901da177e4SLinus Torvalds 10911da177e4SLinus Torvalds #else 10921da177e4SLinus Torvalds 10930cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 10940cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 10950cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 10960cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 10971da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 10981da177e4SLinus Torvalds 10996bc506b4SIdo Schimmel /* br_switchdev.c */ 11006bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 11016bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 11026bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 11036bc506b4SIdo Schimmel struct sk_buff *skb); 11046bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 11056bc506b4SIdo Schimmel const struct sk_buff *skb); 11063922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 11073922285dSArkadi Sharshevsky unsigned long flags, 11083922285dSArkadi Sharshevsky unsigned long mask); 11096b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 11106b26b51bSArkadi Sharshevsky int type); 1111f1c2eddfSIdo Schimmel 1112f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1113f1c2eddfSIdo Schimmel { 1114f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1115f1c2eddfSIdo Schimmel } 11166bc506b4SIdo Schimmel #else 11176bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 11186bc506b4SIdo Schimmel { 11196bc506b4SIdo Schimmel return 0; 11206bc506b4SIdo Schimmel } 11216bc506b4SIdo Schimmel 11226bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 11236bc506b4SIdo Schimmel struct sk_buff *skb) 11246bc506b4SIdo Schimmel { 11256bc506b4SIdo Schimmel } 11266bc506b4SIdo Schimmel 11276bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 11286bc506b4SIdo Schimmel const struct sk_buff *skb) 11296bc506b4SIdo Schimmel { 11306bc506b4SIdo Schimmel return true; 11316bc506b4SIdo Schimmel } 11323922285dSArkadi Sharshevsky 11333922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 11343922285dSArkadi Sharshevsky unsigned long flags, 11353922285dSArkadi Sharshevsky unsigned long mask) 11363922285dSArkadi Sharshevsky { 11373922285dSArkadi Sharshevsky return 0; 11383922285dSArkadi Sharshevsky } 11396b26b51bSArkadi Sharshevsky 11406b26b51bSArkadi Sharshevsky static inline void 11416b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 11426b26b51bSArkadi Sharshevsky { 11436b26b51bSArkadi Sharshevsky } 1144f1c2eddfSIdo Schimmel 1145f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1146f1c2eddfSIdo Schimmel { 1147f1c2eddfSIdo Schimmel } 11486bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 11496bc506b4SIdo Schimmel 1150057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1151821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1152057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1153057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1154ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1155ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1156ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 11571da177e4SLinus Torvalds #endif 1158