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, 184435f2e7cSNikolay Aleksandrov is_sticky:1, 185cf6b8e1eSScott Feldman added_by_user:1, 1869fe8bcecSArkadi Sharshevsky added_by_external_learn:1, 1879fe8bcecSArkadi Sharshevsky offloaded:1; 1881214628cSNikolay Aleksandrov 1891214628cSNikolay Aleksandrov /* write-heavy members should not affect lookups */ 1901214628cSNikolay Aleksandrov unsigned long updated ____cacheline_aligned_in_smp; 1911214628cSNikolay Aleksandrov unsigned long used; 1921214628cSNikolay Aleksandrov 193b22fbf22SNikolay Aleksandrov struct rcu_head rcu; 1941da177e4SLinus Torvalds }; 1951da177e4SLinus Torvalds 1969d06b6d8SElad Raz #define MDB_PG_FLAGS_PERMANENT BIT(0) 1979d06b6d8SElad Raz #define MDB_PG_FLAGS_OFFLOAD BIT(1) 1989d06b6d8SElad Raz 199eb1d1641SHerbert Xu struct net_bridge_port_group { 200eb1d1641SHerbert Xu struct net_bridge_port *port; 201e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 202eb1d1641SHerbert Xu struct hlist_node mglist; 203eb1d1641SHerbert Xu struct rcu_head rcu; 204eb1d1641SHerbert Xu struct timer_list timer; 2058ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 2069d06b6d8SElad Raz unsigned char flags; 2076db6f0eaSFelix Fietkau unsigned char eth_addr[ETH_ALEN]; 208eb1d1641SHerbert Xu }; 209eb1d1641SHerbert Xu 210eb1d1641SHerbert Xu struct net_bridge_mdb_entry 211eb1d1641SHerbert Xu { 212eb1d1641SHerbert Xu struct hlist_node hlist[2]; 213eb1d1641SHerbert Xu struct net_bridge *br; 214e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 215eb1d1641SHerbert Xu struct rcu_head rcu; 216eb1d1641SHerbert Xu struct timer_list timer; 2178ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 218ff0fd34eSAndrew Lunn bool host_joined; 219eb1d1641SHerbert Xu }; 220eb1d1641SHerbert Xu 221eb1d1641SHerbert Xu struct net_bridge_mdb_htable 222eb1d1641SHerbert Xu { 223eb1d1641SHerbert Xu struct hlist_head *mhash; 224eb1d1641SHerbert Xu struct rcu_head rcu; 225eb1d1641SHerbert Xu struct net_bridge_mdb_htable *old; 226eb1d1641SHerbert Xu u32 size; 227eb1d1641SHerbert Xu u32 max; 228eb1d1641SHerbert Xu u32 secret; 229eb1d1641SHerbert Xu u32 ver; 230eb1d1641SHerbert Xu }; 231eb1d1641SHerbert Xu 2321f90c7f3SNikolay Aleksandrov struct net_bridge_port { 2331da177e4SLinus Torvalds struct net_bridge *br; 2341da177e4SLinus Torvalds struct net_device *dev; 2351da177e4SLinus Torvalds struct list_head list; 2361da177e4SLinus Torvalds 2371f90c7f3SNikolay Aleksandrov unsigned long flags; 2381f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 2391f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 2401f90c7f3SNikolay Aleksandrov #endif 2412756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 2421f90c7f3SNikolay Aleksandrov 2431da177e4SLinus Torvalds /* STP */ 2441da177e4SLinus Torvalds u8 priority; 2451da177e4SLinus Torvalds u8 state; 2461da177e4SLinus Torvalds u16 port_no; 2471da177e4SLinus Torvalds unsigned char topology_change_ack; 2481da177e4SLinus Torvalds unsigned char config_pending; 2491da177e4SLinus Torvalds port_id port_id; 2501da177e4SLinus Torvalds port_id designated_port; 2511da177e4SLinus Torvalds bridge_id designated_root; 2521da177e4SLinus Torvalds bridge_id designated_bridge; 2531da177e4SLinus Torvalds u32 path_cost; 2541da177e4SLinus Torvalds u32 designated_cost; 2550c03150eSstephen hemminger unsigned long designated_age; 2561da177e4SLinus Torvalds 2571da177e4SLinus Torvalds struct timer_list forward_delay_timer; 2581da177e4SLinus Torvalds struct timer_list hold_timer; 2591da177e4SLinus Torvalds struct timer_list message_age_timer; 2601da177e4SLinus Torvalds struct kobject kobj; 2611da177e4SLinus Torvalds struct rcu_head rcu; 2623982d3d2SFischer, Anna 263eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 26490010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 265cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 26690010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 267cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 268eb1d1641SHerbert Xu unsigned char multicast_router; 2691080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 270eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 271eb1d1641SHerbert Xu struct hlist_head mglist; 272eb1d1641SHerbert Xu struct hlist_node rlist; 273eb1d1641SHerbert Xu #endif 274e0f43752SSimon Arlott 275e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 276e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 277e0f43752SSimon Arlott #endif 27891d2c34aSHerbert Xu 27991d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 28091d2c34aSHerbert Xu struct netpoll *np; 28191d2c34aSHerbert Xu #endif 2826bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 2836bc506b4SIdo Schimmel int offload_fwd_mark; 2846bc506b4SIdo Schimmel #endif 2855af48b59SNikolay Aleksandrov u16 group_fwd_mask; 2862756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 2871da177e4SLinus Torvalds }; 2881da177e4SLinus Torvalds 289705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 290705e0deaSTyler Hicks 291e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 292f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 293e028e4b8SVlad Yasevich 294f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 295f350a0a8SJiri Pirko 296b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 297b5ed54e9Sstephen hemminger { 298716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 299b5ed54e9Sstephen hemminger } 300b5ed54e9Sstephen hemminger 3011fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 302b5ed54e9Sstephen hemminger { 303ec1e5610SEric Dumazet return br_port_exists(dev) ? 304ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 305b5ed54e9Sstephen hemminger } 306b5ed54e9Sstephen hemminger 3070baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 3080baa10ffSArkadi Sharshevsky { 3090baa10ffSArkadi Sharshevsky return br_port_exists(dev) ? 3100baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3110baa10ffSArkadi Sharshevsky } 3120baa10ffSArkadi Sharshevsky 3131f90c7f3SNikolay Aleksandrov struct net_bridge { 3141da177e4SLinus Torvalds spinlock_t lock; 3151f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 3161da177e4SLinus Torvalds struct list_head port_list; 3171da177e4SLinus Torvalds struct net_device *dev; 3188f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 3191f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3201f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3211f90c7f3SNikolay Aleksandrov u8 vlan_enabled; 3221f90c7f3SNikolay Aleksandrov u8 vlan_stats_enabled; 3231f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3241f90c7f3SNikolay Aleksandrov u16 default_pvid; 3251f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3261f90c7f3SNikolay Aleksandrov #endif 3271f90c7f3SNikolay Aleksandrov 328eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 32934666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 330efb6de9bSBernhard Thaler union { 3314adf0af6SSimon Wunderlich struct rtable fake_rtable; 332efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 333efb6de9bSBernhard Thaler }; 3344df53d8bSPatrick McHardy bool nf_call_iptables; 3354df53d8bSPatrick McHardy bool nf_call_ip6tables; 3364df53d8bSPatrick McHardy bool nf_call_arptables; 3374adf0af6SSimon Wunderlich #endif 338515853ccSstephen hemminger u16 group_fwd_mask; 339f2808d22SToshiaki Makita u16 group_fwd_mask_required; 340515853ccSstephen hemminger 3411da177e4SLinus Torvalds /* STP */ 3421da177e4SLinus Torvalds bridge_id designated_root; 3431da177e4SLinus Torvalds bridge_id bridge_id; 3441da177e4SLinus Torvalds u32 root_path_cost; 3451f90c7f3SNikolay Aleksandrov unsigned char topology_change; 3461f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 3471f90c7f3SNikolay Aleksandrov u16 root_port; 3481da177e4SLinus Torvalds unsigned long max_age; 3491da177e4SLinus Torvalds unsigned long hello_time; 3501da177e4SLinus Torvalds unsigned long forward_delay; 3511da177e4SLinus Torvalds unsigned long ageing_time; 35234d8acd8SVivien Didelot unsigned long bridge_max_age; 3531da177e4SLinus Torvalds unsigned long bridge_hello_time; 3541da177e4SLinus Torvalds unsigned long bridge_forward_delay; 35534d8acd8SVivien Didelot unsigned long bridge_ageing_time; 3561da177e4SLinus Torvalds 357fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 358204177f3SToshiaki Makita bool group_addr_set; 3599cde0708SStephen Hemminger 3609cde0708SStephen Hemminger enum { 3619cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 3629cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 3639cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 3649cde0708SStephen Hemminger } stp_enabled; 3659cde0708SStephen Hemminger 366eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 367eb1d1641SHerbert Xu unsigned char multicast_router; 368eb1d1641SHerbert Xu 369eb1d1641SHerbert Xu u8 multicast_disabled:1; 370c5c23260SHerbert Xu u8 multicast_querier:1; 3711c8ad5bfSCong Wang u8 multicast_query_use_ifaddr:1; 3720888d5f3Sdaniel u8 has_ipv6_addr:1; 3731080ab95SNikolay Aleksandrov u8 multicast_stats_enabled:1; 374eb1d1641SHerbert Xu 375eb1d1641SHerbert Xu u32 hash_elasticity; 376eb1d1641SHerbert Xu u32 hash_max; 377eb1d1641SHerbert Xu 378eb1d1641SHerbert Xu u32 multicast_last_member_count; 379eb1d1641SHerbert Xu u32 multicast_startup_query_count; 380eb1d1641SHerbert Xu 3815e923585SNikolay Aleksandrov u8 multicast_igmp_version; 3825e923585SNikolay Aleksandrov 383eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 384eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 385eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 386eb1d1641SHerbert Xu unsigned long multicast_query_interval; 387eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 388eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 389eb1d1641SHerbert Xu 390eb1d1641SHerbert Xu spinlock_t multicast_lock; 391e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 392eb1d1641SHerbert Xu struct hlist_head router_list; 393eb1d1641SHerbert Xu 394eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 39590010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 39690010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 397dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 3981080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 399cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 40090010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 40190010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 402dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 403aa2ae3e7SNikolay Aleksandrov u8 multicast_mld_version; 404cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 405eb1d1641SHerbert Xu #endif 406eb1d1641SHerbert Xu 4071da177e4SLinus Torvalds struct timer_list hello_timer; 4081da177e4SLinus Torvalds struct timer_list tcn_timer; 4091da177e4SLinus Torvalds struct timer_list topology_change_timer; 410f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 41143b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 412e028e4b8SVlad Yasevich u32 auto_cnt; 4136bc506b4SIdo Schimmel 4146bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4156bc506b4SIdo Schimmel int offload_fwd_mark; 4166bc506b4SIdo Schimmel #endif 417821f1b21SRoopa Prabhu bool neigh_suppress_enabled; 418804b854dSNikolay Aleksandrov bool mtu_set_by_user; 419eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4201da177e4SLinus Torvalds }; 4211da177e4SLinus Torvalds 42268b7c895SHerbert Xu struct br_input_skb_cb { 42368b7c895SHerbert Xu struct net_device *brdev; 42493fdd47eSHerbert Xu 42532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 426eb1d1641SHerbert Xu int igmp; 427eb1d1641SHerbert Xu int mrouters_only; 42832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 42993fdd47eSHerbert Xu 430842a9ae0SJouni Malinen bool proxyarp_replied; 4317d850abdSNikolay Aleksandrov bool src_port_isolated; 43293fdd47eSHerbert Xu 43320adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 43420adfa1aSVlad Yasevich bool vlan_filtered; 43520adfa1aSVlad Yasevich #endif 4366bc506b4SIdo Schimmel 4376bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4386bc506b4SIdo Schimmel int offload_fwd_mark; 4396bc506b4SIdo Schimmel #endif 44068b7c895SHerbert Xu }; 44168b7c895SHerbert Xu 44268b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 44368b7c895SHerbert Xu 44432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 44532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 44632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 44732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 44832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 44932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 45028a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 45128a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 45228a16c97Sstephen hemminger 45328a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 45428a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 45528a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 45628a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 45728a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 45828a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 45928a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 46028a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 46128a16c97Sstephen hemminger 46228a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 46328a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 46428a16c97Sstephen hemminger 4651da177e4SLinus Torvalds /* called under bridge lock */ 4661da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 4671da177e4SLinus Torvalds { 4681da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 4691da177e4SLinus Torvalds } 4701da177e4SLinus Torvalds 4712594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 4722594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 4732594e906SNikolay Aleksandrov { 4742594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 4752594e906SNikolay Aleksandrov } 4762594e906SNikolay Aleksandrov 4772594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 4782594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 4792594e906SNikolay Aleksandrov { 4802594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 4812594e906SNikolay Aleksandrov } 4822594e906SNikolay Aleksandrov 4836be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 4842594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 4852594e906SNikolay Aleksandrov { 4862594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 4872594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 4882594e906SNikolay Aleksandrov return true; 4892594e906SNikolay Aleksandrov else 4902594e906SNikolay Aleksandrov return false; 4912594e906SNikolay Aleksandrov } 4922594e906SNikolay Aleksandrov 4932594e906SNikolay Aleksandrov return true; 4942594e906SNikolay Aleksandrov } 4952594e906SNikolay Aleksandrov 4961da177e4SLinus Torvalds /* br_device.c */ 497348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 498348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 499348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 500cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 50191d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 50291d2c34aSHerbert Xu struct sk_buff *skb) 50391d2c34aSHerbert Xu { 50491d2c34aSHerbert Xu struct netpoll *np = p->np; 50591d2c34aSHerbert Xu 50691d2c34aSHerbert Xu if (np) 50791d2c34aSHerbert Xu netpoll_send_skb(np, skb); 50891d2c34aSHerbert Xu } 50991d2c34aSHerbert Xu 510a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 511348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 51291d2c34aSHerbert Xu #else 5139f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 51491d2c34aSHerbert Xu struct sk_buff *skb) 51591d2c34aSHerbert Xu { 51691d2c34aSHerbert Xu } 51791d2c34aSHerbert Xu 518a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 51991d2c34aSHerbert Xu { 52091d2c34aSHerbert Xu return 0; 52191d2c34aSHerbert Xu } 52291d2c34aSHerbert Xu 52391d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 52491d2c34aSHerbert Xu { 52591d2c34aSHerbert Xu } 526cfb478daSstephen hemminger #endif 5271da177e4SLinus Torvalds 5281da177e4SLinus Torvalds /* br_fdb.c */ 529348662a1SJoe Perches int br_fdb_init(void); 530348662a1SJoe Perches void br_fdb_fini(void); 531eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 532eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 533348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 534424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 535424bb9c9SToshiaki Makita const struct net_bridge_port *p, 536424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 537348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 538348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 539f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 540348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 5411ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 542bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 543bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 544bfd0aeacSNikolay Aleksandrov __u16 vid); 545348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 546348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 547348662a1SJoe Perches unsigned long off); 548348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 549348662a1SJoe Perches const unsigned char *addr, u16 vid); 550348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 551a5642ab4SToshiaki Makita const unsigned char *addr, u16 vid, bool added_by_user); 55277162022SJohn Fastabend 553348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 554f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 555348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 556f6f6424bSJiri Pirko const unsigned char *addr, u16 vid, u16 nlh_flags); 557348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 558d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 5598db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 5608db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 5613aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 562161d82deSPetr Machata const unsigned char *addr, u16 vid, 563161d82deSPetr Machata bool swdev_notify); 5643aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 565161d82deSPetr Machata const unsigned char *addr, u16 vid, 566161d82deSPetr Machata bool swdev_notify); 5679fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 5689fe8bcecSArkadi Sharshevsky const unsigned char *addr, u16 vid); 5691da177e4SLinus Torvalds 5701da177e4SLinus Torvalds /* br_forward.c */ 5718addd5e7SNikolay Aleksandrov enum br_pkt_type { 5728addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 5738addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 5748addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 5758addd5e7SNikolay Aleksandrov }; 5760c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 577b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 57837b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 5790c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 58037b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 5818addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 5821da177e4SLinus Torvalds 5837d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 5847d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 5857d850abdSNikolay Aleksandrov const struct sk_buff *skb) 5867d850abdSNikolay Aleksandrov { 5877d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 5887d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 5897d850abdSNikolay Aleksandrov } 5907d850abdSNikolay Aleksandrov 5911da177e4SLinus Torvalds /* br_if.c */ 592faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 593348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 594348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 595ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 596ca752be0SDavid Ahern struct netlink_ext_ack *extack); 597348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 598804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 599348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 600c8f44affSMichał Mirosław netdev_features_t features); 601e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 6022796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 6032756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 6041da177e4SLinus Torvalds 6051da177e4SLinus Torvalds /* br_input.c */ 6060c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 607348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 6081da177e4SLinus Torvalds 609859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 610859828c0SJiri Pirko { 611859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 612859828c0SJiri Pirko } 613859828c0SJiri Pirko 6144d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 6154d4fd361SPetr Machata { 6164d4fd361SPetr Machata return rcu_dereference_rtnl(dev->rx_handler) == br_handle_frame; 6174d4fd361SPetr Machata } 6184d4fd361SPetr Machata 619859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 620859828c0SJiri Pirko { 621859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 622859828c0SJiri Pirko } 623859828c0SJiri Pirko 6244d4fd361SPetr Machata static inline struct net_bridge_port * 6254d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 6264d4fd361SPetr Machata { 6274d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 6284d4fd361SPetr Machata } 6294d4fd361SPetr Machata 6301da177e4SLinus Torvalds /* br_ioctl.c */ 631348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 632348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 633348662a1SJoe Perches void __user *arg); 6341da177e4SLinus Torvalds 635eb1d1641SHerbert Xu /* br_multicast.c */ 636eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 6372ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 638348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 639fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 640348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 641eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 6421080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 643348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 644348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 645348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 646348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 647348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 648348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 649e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 65037b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 65137b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 652348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 653348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 654348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 655348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 656348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 6575e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 658aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 659aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 660aa2ae3e7SNikolay Aleksandrov #endif 661348662a1SJoe Perches struct net_bridge_mdb_entry * 662348662a1SJoe Perches br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); 663348662a1SJoe Perches struct net_bridge_mdb_entry * 664348662a1SJoe Perches br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, 665348662a1SJoe Perches struct br_ip *group); 666348662a1SJoe Perches void br_multicast_free_pg(struct rcu_head *head); 667348662a1SJoe Perches struct net_bridge_port_group * 668348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 669762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 6706db6f0eaSFelix Fietkau unsigned char flags, const unsigned char *src); 671348662a1SJoe Perches void br_mdb_init(void); 672348662a1SJoe Perches void br_mdb_uninit(void); 67345ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 67445ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 675949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 676949f1e39SSatish Ashok int type); 6771080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 678a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 6791080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 680b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 6811080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 6821080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 6831080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 68485b35269SSridhar Samudrala 685cfd56754SCong Wang #define mlock_dereference(X, br) \ 686cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 687cfd56754SCong Wang 68885b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 68985b35269SSridhar Samudrala { 69085b35269SSridhar Samudrala return br->multicast_router == 2 || 69185b35269SSridhar Samudrala (br->multicast_router == 1 && 69285b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 69385b35269SSridhar Samudrala } 694b00589afSLinus Lüssing 695cc0fdd80SLinus Lüssing static inline bool 696cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 6970888d5f3Sdaniel struct bridge_mcast_other_query *querier, 6980888d5f3Sdaniel const bool is_ipv6) 699b00589afSLinus Lüssing { 7000888d5f3Sdaniel bool own_querier_enabled; 7010888d5f3Sdaniel 7020888d5f3Sdaniel if (br->multicast_querier) { 7030888d5f3Sdaniel if (is_ipv6 && !br->has_ipv6_addr) 7040888d5f3Sdaniel own_querier_enabled = false; 7050888d5f3Sdaniel else 7060888d5f3Sdaniel own_querier_enabled = true; 7070888d5f3Sdaniel } else { 7080888d5f3Sdaniel own_querier_enabled = false; 7090888d5f3Sdaniel } 7100888d5f3Sdaniel 711cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 7120888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 713cc0fdd80SLinus Lüssing } 714cc0fdd80SLinus Lüssing 715cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 716cc0fdd80SLinus Lüssing struct ethhdr *eth) 717cc0fdd80SLinus Lüssing { 718cc0fdd80SLinus Lüssing switch (eth->h_proto) { 719cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 7200888d5f3Sdaniel return __br_multicast_querier_exists(br, 7210888d5f3Sdaniel &br->ip4_other_query, false); 722cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 723cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 7240888d5f3Sdaniel return __br_multicast_querier_exists(br, 7250888d5f3Sdaniel &br->ip6_other_query, true); 726cc0fdd80SLinus Lüssing #endif 727cc0fdd80SLinus Lüssing default: 728cc0fdd80SLinus Lüssing return false; 729cc0fdd80SLinus Lüssing } 730b00589afSLinus Lüssing } 7311080ab95SNikolay Aleksandrov 7321080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 7331080ab95SNikolay Aleksandrov { 7341080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 7351080ab95SNikolay Aleksandrov } 736eb1d1641SHerbert Xu #else 737eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 738eb1d1641SHerbert Xu struct net_bridge_port *port, 73906499098SVlad Yasevich struct sk_buff *skb, 74006499098SVlad Yasevich u16 vid) 741eb1d1641SHerbert Xu { 742eb1d1641SHerbert Xu return 0; 743eb1d1641SHerbert Xu } 744eb1d1641SHerbert Xu 745eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 746fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 747eb1d1641SHerbert Xu { 748eb1d1641SHerbert Xu return NULL; 749eb1d1641SHerbert Xu } 750eb1d1641SHerbert Xu 7511080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 752eb1d1641SHerbert Xu { 7531080ab95SNikolay Aleksandrov return 0; 754eb1d1641SHerbert Xu } 755eb1d1641SHerbert Xu 756eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 757eb1d1641SHerbert Xu { 758eb1d1641SHerbert Xu } 759eb1d1641SHerbert Xu 760eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 761eb1d1641SHerbert Xu { 762eb1d1641SHerbert Xu } 763eb1d1641SHerbert Xu 764eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 765eb1d1641SHerbert Xu { 766eb1d1641SHerbert Xu } 767eb1d1641SHerbert Xu 768eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 769eb1d1641SHerbert Xu { 770eb1d1641SHerbert Xu } 771eb1d1641SHerbert Xu 772eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 773eb1d1641SHerbert Xu { 774eb1d1641SHerbert Xu } 775eb1d1641SHerbert Xu 776eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 777eb1d1641SHerbert Xu { 778eb1d1641SHerbert Xu } 7795cb5e947SHerbert Xu 780a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 781a7ce45a7SNikolay Aleksandrov { 782a7ce45a7SNikolay Aleksandrov } 783a7ce45a7SNikolay Aleksandrov 78437b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 78537b090e6SNikolay Aleksandrov struct sk_buff *skb, 78637b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 7875cb5e947SHerbert Xu { 7885cb5e947SHerbert Xu } 7895cb5e947SHerbert Xu 790eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 791eb1d1641SHerbert Xu { 79203aaa9e2SGustavo A. R. Silva return false; 793eb1d1641SHerbert Xu } 79437b090e6SNikolay Aleksandrov 795cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 796cc0fdd80SLinus Lüssing struct ethhdr *eth) 797b00589afSLinus Lüssing { 798b00589afSLinus Lüssing return false; 799b00589afSLinus Lüssing } 80037b090e6SNikolay Aleksandrov 801fdb184d1SRami Rosen static inline void br_mdb_init(void) 802fdb184d1SRami Rosen { 803fdb184d1SRami Rosen } 80437b090e6SNikolay Aleksandrov 805fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 806fdb184d1SRami Rosen { 807fdb184d1SRami Rosen } 8081080ab95SNikolay Aleksandrov 8091080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 8101080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 811a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 812a65056ecSNikolay Aleksandrov u8 type, u8 dir) 8131080ab95SNikolay Aleksandrov { 8141080ab95SNikolay Aleksandrov } 8151080ab95SNikolay Aleksandrov 8161080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 8171080ab95SNikolay Aleksandrov { 8181080ab95SNikolay Aleksandrov return 0; 8191080ab95SNikolay Aleksandrov } 8201080ab95SNikolay Aleksandrov 821b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 822b6fe0440SIdo Schimmel { 823b6fe0440SIdo Schimmel } 824b6fe0440SIdo Schimmel 8251080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 8261080ab95SNikolay Aleksandrov { 8271080ab95SNikolay Aleksandrov return 0; 8281080ab95SNikolay Aleksandrov } 82985b35269SSridhar Samudrala #endif 830eb1d1641SHerbert Xu 831243a2e63SVlad Yasevich /* br_vlan.c */ 832243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 83377751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 83477751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 8352594e906SNikolay Aleksandrov u16 *vid); 83677751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 83785f46c6bSVlad Yasevich const struct sk_buff *skb); 838e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 839348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 84011538d03SRoopa Prabhu const struct net_bridge_port *port, 8412594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 84278851988SVlad Yasevich struct sk_buff *skb); 843f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 844f418af63SNikolay Aleksandrov bool *changed); 845348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 846348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 8472594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 848204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 849a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 850348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 851d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 852204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 8536dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 8545be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 85596a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 8560f963b75SNikolay Aleksandrov int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid); 857f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 858f418af63SNikolay Aleksandrov bool *changed); 859348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 860348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 8615be5a2dfSVlad Yasevich int nbp_vlan_init(struct net_bridge_port *port); 8622594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 863a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 864a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 865a37b85c9SVlad Yasevich 8662594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 867a37b85c9SVlad Yasevich const struct net_bridge *br) 868a37b85c9SVlad Yasevich { 869907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 870a37b85c9SVlad Yasevich } 871a37b85c9SVlad Yasevich 8722594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 873a37b85c9SVlad Yasevich const struct net_bridge_port *p) 874a37b85c9SVlad Yasevich { 875907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 876907b1e6eSNikolay Aleksandrov } 877907b1e6eSNikolay Aleksandrov 878907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 879907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 880907b1e6eSNikolay Aleksandrov { 881907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 882907b1e6eSNikolay Aleksandrov } 883907b1e6eSNikolay Aleksandrov 884907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 885907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 886907b1e6eSNikolay Aleksandrov { 887907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 888a37b85c9SVlad Yasevich } 889a37b85c9SVlad Yasevich 890a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 891a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 892a37b85c9SVlad Yasevich */ 893a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 894a37b85c9SVlad Yasevich { 895a37b85c9SVlad Yasevich int err = 0; 896a37b85c9SVlad Yasevich 8972594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 898df8a39deSJiri Pirko *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; 8992594e906SNikolay Aleksandrov } else { 900a37b85c9SVlad Yasevich *vid = 0; 901a37b85c9SVlad Yasevich err = -EINVAL; 902a37b85c9SVlad Yasevich } 903a37b85c9SVlad Yasevich 904a37b85c9SVlad Yasevich return err; 905a37b85c9SVlad Yasevich } 90678851988SVlad Yasevich 90777751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 90878851988SVlad Yasevich { 90977751ee8SNikolay Aleksandrov if (!vg) 9105be5a2dfSVlad Yasevich return 0; 9115be5a2dfSVlad Yasevich 91278851988SVlad Yasevich smp_rmb(); 91377751ee8SNikolay Aleksandrov return vg->pvid; 91478851988SVlad Yasevich } 91578851988SVlad Yasevich 916243a2e63SVlad Yasevich #else 91777751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 91877751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 9192594e906SNikolay Aleksandrov struct sk_buff *skb, 9202594e906SNikolay Aleksandrov u16 *vid) 9212594e906SNikolay Aleksandrov { 9222594e906SNikolay Aleksandrov return true; 9232594e906SNikolay Aleksandrov } 9242594e906SNikolay Aleksandrov 9252594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 92685f46c6bSVlad Yasevich const struct sk_buff *skb) 92785f46c6bSVlad Yasevich { 92885f46c6bSVlad Yasevich return true; 92985f46c6bSVlad Yasevich } 93085f46c6bSVlad Yasevich 931e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 932e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 933e0d7968aSToshiaki Makita { 934e0d7968aSToshiaki Makita return true; 935e0d7968aSToshiaki Makita } 936e0d7968aSToshiaki Makita 93778851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 93811538d03SRoopa Prabhu const struct net_bridge_port *port, 9392594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 94078851988SVlad Yasevich struct sk_buff *skb) 94178851988SVlad Yasevich { 94278851988SVlad Yasevich return skb; 94378851988SVlad Yasevich } 94478851988SVlad Yasevich 945f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 946f418af63SNikolay Aleksandrov bool *changed) 947243a2e63SVlad Yasevich { 948f418af63SNikolay Aleksandrov *changed = false; 949243a2e63SVlad Yasevich return -EOPNOTSUPP; 950243a2e63SVlad Yasevich } 951243a2e63SVlad Yasevich 952243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 953243a2e63SVlad Yasevich { 954243a2e63SVlad Yasevich return -EOPNOTSUPP; 955243a2e63SVlad Yasevich } 956243a2e63SVlad Yasevich 957243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 958243a2e63SVlad Yasevich { 959243a2e63SVlad Yasevich } 960243a2e63SVlad Yasevich 961204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 962204177f3SToshiaki Makita { 963204177f3SToshiaki Makita } 964204177f3SToshiaki Makita 9655be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 9668580e211SToshiaki Makita { 9675be5a2dfSVlad Yasevich return 0; 9688580e211SToshiaki Makita } 9698580e211SToshiaki Makita 970f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 971f418af63SNikolay Aleksandrov bool *changed) 972243a2e63SVlad Yasevich { 973f418af63SNikolay Aleksandrov *changed = false; 974243a2e63SVlad Yasevich return -EOPNOTSUPP; 975243a2e63SVlad Yasevich } 976243a2e63SVlad Yasevich 977243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 978243a2e63SVlad Yasevich { 979243a2e63SVlad Yasevich return -EOPNOTSUPP; 980243a2e63SVlad Yasevich } 981243a2e63SVlad Yasevich 982243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 983243a2e63SVlad Yasevich { 984243a2e63SVlad Yasevich } 985243a2e63SVlad Yasevich 9862594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 9872594e906SNikolay Aleksandrov u16 vid) 988a37b85c9SVlad Yasevich { 989a37b85c9SVlad Yasevich return NULL; 990a37b85c9SVlad Yasevich } 991bc9a25d2SVlad Yasevich 9925be5a2dfSVlad Yasevich static inline int nbp_vlan_init(struct net_bridge_port *port) 9935be5a2dfSVlad Yasevich { 9945be5a2dfSVlad Yasevich return 0; 9955be5a2dfSVlad Yasevich } 9965be5a2dfSVlad Yasevich 99778851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 998a37b85c9SVlad Yasevich { 999a37b85c9SVlad Yasevich return 0; 1000a37b85c9SVlad Yasevich } 10012594e906SNikolay Aleksandrov 100277751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 100378851988SVlad Yasevich { 10043df6bf45SVlad Yasevich return 0; 100578851988SVlad Yasevich } 10062796d0c6SVlad Yasevich 1007a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1008a7854037SNikolay Aleksandrov unsigned long val) 1009a7854037SNikolay Aleksandrov { 1010a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1011a7854037SNikolay Aleksandrov } 10122594e906SNikolay Aleksandrov 10132594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 10142594e906SNikolay Aleksandrov u32 filter_mask) 10152594e906SNikolay Aleksandrov { 10162594e906SNikolay Aleksandrov return 0; 10172594e906SNikolay Aleksandrov } 10182594e906SNikolay Aleksandrov 10192594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 10202594e906SNikolay Aleksandrov const struct net_bridge *br) 10212594e906SNikolay Aleksandrov { 10222594e906SNikolay Aleksandrov return NULL; 10232594e906SNikolay Aleksandrov } 10242594e906SNikolay Aleksandrov 10252594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 10262594e906SNikolay Aleksandrov const struct net_bridge_port *p) 10272594e906SNikolay Aleksandrov { 10282594e906SNikolay Aleksandrov return NULL; 10292594e906SNikolay Aleksandrov } 1030907b1e6eSNikolay Aleksandrov 1031907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1032907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1033907b1e6eSNikolay Aleksandrov { 1034907b1e6eSNikolay Aleksandrov return NULL; 1035907b1e6eSNikolay Aleksandrov } 1036907b1e6eSNikolay Aleksandrov 1037907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1038907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1039907b1e6eSNikolay Aleksandrov { 1040907b1e6eSNikolay Aleksandrov return NULL; 1041907b1e6eSNikolay Aleksandrov } 1042a60c0903SNikolay Aleksandrov 1043a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1044a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1045a60c0903SNikolay Aleksandrov { 1046a60c0903SNikolay Aleksandrov } 1047243a2e63SVlad Yasevich #endif 1048243a2e63SVlad Yasevich 10491a4ba64dSPablo Neira Ayuso struct nf_br_ops { 10501a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 10511a4ba64dSPablo Neira Ayuso }; 10521a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 10531a4ba64dSPablo Neira Ayuso 10541da177e4SLinus Torvalds /* br_netfilter.c */ 105534666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 105634666d46SPablo Neira Ayuso int br_nf_core_init(void); 105734666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1058348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1059c0909713SStephen Hemminger #else 106034666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 106134666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 10624adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1063c0909713SStephen Hemminger #endif 10641da177e4SLinus Torvalds 10651da177e4SLinus Torvalds /* br_stp.c */ 1066775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1067348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1068348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1069348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 10701da177e4SLinus Torvalds 1071348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1072348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1073348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1074348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 107582dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 10769e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 107714f98f25Sstephen hemminger 107814f98f25Sstephen hemminger 10791da177e4SLinus Torvalds /* br_stp_if.c */ 1080348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1081348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1082348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 1083348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1084348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1085348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1086348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1087348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1088348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1089348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1090348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 10911da177e4SLinus Torvalds 10921da177e4SLinus Torvalds /* br_stp_bpdu.c */ 10937c85fbf0SPatrick McHardy struct stp_proto; 1094348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 10957c85fbf0SPatrick McHardy struct net_device *dev); 10961da177e4SLinus Torvalds 10971da177e4SLinus Torvalds /* br_stp_timer.c */ 1098348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1099348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1100348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 11011da177e4SLinus Torvalds 11021da177e4SLinus Torvalds /* br.c */ 1103e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1104da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1105da678292SMichał Mirosław #endif 11061da177e4SLinus Torvalds 110711dc1f36SStephen Hemminger /* br_netlink.c */ 1108149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1109348662a1SJoe Perches int br_netlink_init(void); 1110348662a1SJoe Perches void br_netlink_fini(void); 111192899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 111292899063SNikolay Aleksandrov const struct net_bridge_port *port); 1113add511b3SRoopa Prabhu int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1114add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1115348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 111646c264daSNicolas Dichtel u32 filter_mask, int nlflags); 111711dc1f36SStephen Hemminger 11181da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 11191da177e4SLinus Torvalds /* br_sysfs_if.c */ 112052cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1121348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1122348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 11231da177e4SLinus Torvalds 11241da177e4SLinus Torvalds /* br_sysfs_br.c */ 1125348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1126348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 11271da177e4SLinus Torvalds 11281da177e4SLinus Torvalds #else 11291da177e4SLinus Torvalds 11300cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 11310cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 11320cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 11330cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 11341da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 11351da177e4SLinus Torvalds 11366bc506b4SIdo Schimmel /* br_switchdev.c */ 11376bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 11386bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 11396bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 11406bc506b4SIdo Schimmel struct sk_buff *skb); 11416bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 11426bc506b4SIdo Schimmel const struct sk_buff *skb); 11433922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 11443922285dSArkadi Sharshevsky unsigned long flags, 11453922285dSArkadi Sharshevsky unsigned long mask); 11466b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 11476b26b51bSArkadi Sharshevsky int type); 1148d66e4348SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags); 1149d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1150f1c2eddfSIdo Schimmel 1151f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1152f1c2eddfSIdo Schimmel { 1153f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1154f1c2eddfSIdo Schimmel } 11556bc506b4SIdo Schimmel #else 11566bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 11576bc506b4SIdo Schimmel { 11586bc506b4SIdo Schimmel return 0; 11596bc506b4SIdo Schimmel } 11606bc506b4SIdo Schimmel 11616bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 11626bc506b4SIdo Schimmel struct sk_buff *skb) 11636bc506b4SIdo Schimmel { 11646bc506b4SIdo Schimmel } 11656bc506b4SIdo Schimmel 11666bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 11676bc506b4SIdo Schimmel const struct sk_buff *skb) 11686bc506b4SIdo Schimmel { 11696bc506b4SIdo Schimmel return true; 11706bc506b4SIdo Schimmel } 11713922285dSArkadi Sharshevsky 11723922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 11733922285dSArkadi Sharshevsky unsigned long flags, 11743922285dSArkadi Sharshevsky unsigned long mask) 11753922285dSArkadi Sharshevsky { 11763922285dSArkadi Sharshevsky return 0; 11773922285dSArkadi Sharshevsky } 11786b26b51bSArkadi Sharshevsky 1179d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1180d66e4348SPetr Machata u16 vid, u16 flags) 1181d66e4348SPetr Machata { 1182d66e4348SPetr Machata return -EOPNOTSUPP; 1183d66e4348SPetr Machata } 1184d66e4348SPetr Machata 1185d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1186d66e4348SPetr Machata { 1187d66e4348SPetr Machata return -EOPNOTSUPP; 1188d66e4348SPetr Machata } 1189d66e4348SPetr Machata 11906b26b51bSArkadi Sharshevsky static inline void 11916b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 11926b26b51bSArkadi Sharshevsky { 11936b26b51bSArkadi Sharshevsky } 1194f1c2eddfSIdo Schimmel 1195f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1196f1c2eddfSIdo Schimmel { 1197f1c2eddfSIdo Schimmel } 11986bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 11996bc506b4SIdo Schimmel 1200057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1201821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1202057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1203057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1204ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1205ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1206ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 12071da177e4SLinus Torvalds #endif 1208