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 571c1cb6d0SNikolay Aleksandrov struct bridge_id { 581da177e4SLinus Torvalds unsigned char prio[2]; 59e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 601da177e4SLinus Torvalds }; 611da177e4SLinus Torvalds 621c1cb6d0SNikolay Aleksandrov struct mac_addr { 63e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 641da177e4SLinus Torvalds }; 651da177e4SLinus Torvalds 66cc0fdd80SLinus Lüssing #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 67cc0fdd80SLinus Lüssing /* our own querier */ 6890010b36SLinus Lüssing struct bridge_mcast_own_query { 69cc0fdd80SLinus Lüssing struct timer_list timer; 70cc0fdd80SLinus Lüssing u32 startup_sent; 71cc0fdd80SLinus Lüssing }; 72cc0fdd80SLinus Lüssing 73cc0fdd80SLinus Lüssing /* other querier */ 7490010b36SLinus Lüssing struct bridge_mcast_other_query { 75cc0fdd80SLinus Lüssing struct timer_list timer; 76cc0fdd80SLinus Lüssing unsigned long delay_time; 77cc0fdd80SLinus Lüssing }; 78dc4eb53aSLinus Lüssing 79dc4eb53aSLinus Lüssing /* selected querier */ 80dc4eb53aSLinus Lüssing struct bridge_mcast_querier { 81dc4eb53aSLinus Lüssing struct br_ip addr; 822cd41431SLinus Lüssing struct net_bridge_port __rcu *port; 83dc4eb53aSLinus Lüssing }; 841080ab95SNikolay Aleksandrov 851080ab95SNikolay Aleksandrov /* IGMP/MLD statistics */ 861080ab95SNikolay Aleksandrov struct bridge_mcast_stats { 871080ab95SNikolay Aleksandrov struct br_mcast_stats mstats; 881080ab95SNikolay Aleksandrov struct u64_stats_sync syncp; 891080ab95SNikolay Aleksandrov }; 90cc0fdd80SLinus Lüssing #endif 91cc0fdd80SLinus Lüssing 926dada9b1SNikolay Aleksandrov struct br_vlan_stats { 936dada9b1SNikolay Aleksandrov u64 rx_bytes; 946dada9b1SNikolay Aleksandrov u64 rx_packets; 956dada9b1SNikolay Aleksandrov u64 tx_bytes; 966dada9b1SNikolay Aleksandrov u64 tx_packets; 976dada9b1SNikolay Aleksandrov struct u64_stats_sync syncp; 986dada9b1SNikolay Aleksandrov }; 996dada9b1SNikolay Aleksandrov 100efa5356bSRoopa Prabhu struct br_tunnel_info { 101efa5356bSRoopa Prabhu __be64 tunnel_id; 102efa5356bSRoopa Prabhu struct metadata_dst *tunnel_dst; 103efa5356bSRoopa Prabhu }; 104efa5356bSRoopa Prabhu 1059d332e69SNikolay Aleksandrov /* private vlan flags */ 1069d332e69SNikolay Aleksandrov enum { 1079d332e69SNikolay Aleksandrov BR_VLFLAG_PER_PORT_STATS = BIT(0), 1089d332e69SNikolay Aleksandrov }; 1099d332e69SNikolay Aleksandrov 1102594e906SNikolay Aleksandrov /** 1112594e906SNikolay Aleksandrov * struct net_bridge_vlan - per-vlan entry 1122594e906SNikolay Aleksandrov * 1132594e906SNikolay Aleksandrov * @vnode: rhashtable member 1142594e906SNikolay Aleksandrov * @vid: VLAN id 1152594e906SNikolay Aleksandrov * @flags: bridge vlan flags 1169d332e69SNikolay Aleksandrov * @priv_flags: private (in-kernel) bridge vlan flags 1176dada9b1SNikolay Aleksandrov * @stats: per-cpu VLAN statistics 1182594e906SNikolay Aleksandrov * @br: if MASTER flag set, this points to a bridge struct 1192594e906SNikolay Aleksandrov * @port: if MASTER flag unset, this points to a port struct 1202594e906SNikolay Aleksandrov * @refcnt: if MASTER flag set, this is bumped for each port referencing it 1212594e906SNikolay Aleksandrov * @brvlan: if MASTER flag unset, this points to the global per-VLAN context 1222594e906SNikolay Aleksandrov * for this VLAN entry 1232594e906SNikolay Aleksandrov * @vlist: sorted list of VLAN entries 1242594e906SNikolay Aleksandrov * @rcu: used for entry destruction 1252594e906SNikolay Aleksandrov * 1262594e906SNikolay Aleksandrov * This structure is shared between the global per-VLAN entries contained in 1272594e906SNikolay Aleksandrov * the bridge rhashtable and the local per-port per-VLAN entries contained in 1282594e906SNikolay Aleksandrov * the port's rhashtable. The union entries should be interpreted depending on 1292594e906SNikolay Aleksandrov * the entry flags that are set. 1302594e906SNikolay Aleksandrov */ 1312594e906SNikolay Aleksandrov struct net_bridge_vlan { 1322594e906SNikolay Aleksandrov struct rhash_head vnode; 133efa5356bSRoopa Prabhu struct rhash_head tnode; 1342594e906SNikolay Aleksandrov u16 vid; 1352594e906SNikolay Aleksandrov u16 flags; 1369d332e69SNikolay Aleksandrov u16 priv_flags; 1376dada9b1SNikolay Aleksandrov struct br_vlan_stats __percpu *stats; 138243a2e63SVlad Yasevich union { 139243a2e63SVlad Yasevich struct net_bridge *br; 1402594e906SNikolay Aleksandrov struct net_bridge_port *port; 1412594e906SNikolay Aleksandrov }; 1422594e906SNikolay Aleksandrov union { 14325127759SReshetova, Elena refcount_t refcnt; 1442594e906SNikolay Aleksandrov struct net_bridge_vlan *brvlan; 1452594e906SNikolay Aleksandrov }; 146efa5356bSRoopa Prabhu 147efa5356bSRoopa Prabhu struct br_tunnel_info tinfo; 148efa5356bSRoopa Prabhu 1492594e906SNikolay Aleksandrov struct list_head vlist; 1502594e906SNikolay Aleksandrov 151243a2e63SVlad Yasevich struct rcu_head rcu; 1522594e906SNikolay Aleksandrov }; 1532594e906SNikolay Aleksandrov 1542594e906SNikolay Aleksandrov /** 1552594e906SNikolay Aleksandrov * struct net_bridge_vlan_group 1562594e906SNikolay Aleksandrov * 1572594e906SNikolay Aleksandrov * @vlan_hash: VLAN entry rhashtable 1582594e906SNikolay Aleksandrov * @vlan_list: sorted VLAN entry list 1592594e906SNikolay Aleksandrov * @num_vlans: number of total VLAN entries 16077751ee8SNikolay Aleksandrov * @pvid: PVID VLAN id 1612594e906SNikolay Aleksandrov * 1622594e906SNikolay Aleksandrov * IMPORTANT: Be careful when checking if there're VLAN entries using list 1632594e906SNikolay Aleksandrov * primitives because the bridge can have entries in its list which 1642594e906SNikolay Aleksandrov * are just for global context but not for filtering, i.e. they have 1652594e906SNikolay Aleksandrov * the master flag set but not the brentry flag. If you have to check 1662594e906SNikolay Aleksandrov * if there're "real" entries in the bridge please test @num_vlans 1672594e906SNikolay Aleksandrov */ 1682594e906SNikolay Aleksandrov struct net_bridge_vlan_group { 1692594e906SNikolay Aleksandrov struct rhashtable vlan_hash; 170efa5356bSRoopa Prabhu struct rhashtable tunnel_hash; 1712594e906SNikolay Aleksandrov struct list_head vlan_list; 1726cbdceebSVlad Yasevich u16 num_vlans; 17377751ee8SNikolay Aleksandrov u16 pvid; 174243a2e63SVlad Yasevich }; 175243a2e63SVlad Yasevich 176eb793583SNikolay Aleksandrov struct net_bridge_fdb_key { 177eb793583SNikolay Aleksandrov mac_addr addr; 178eb793583SNikolay Aleksandrov u16 vlan_id; 179eb793583SNikolay Aleksandrov }; 180eb793583SNikolay Aleksandrov 1811214628cSNikolay Aleksandrov struct net_bridge_fdb_entry { 182eb793583SNikolay Aleksandrov struct rhash_head rhnode; 1831da177e4SLinus Torvalds struct net_bridge_port *dst; 1841da177e4SLinus Torvalds 185eb793583SNikolay Aleksandrov struct net_bridge_fdb_key key; 186eb793583SNikolay Aleksandrov struct hlist_node fdb_node; 18793859b13SJiri Pirko unsigned char is_local:1, 18893859b13SJiri Pirko is_static:1, 189435f2e7cSNikolay Aleksandrov is_sticky:1, 190cf6b8e1eSScott Feldman added_by_user:1, 1919fe8bcecSArkadi Sharshevsky added_by_external_learn:1, 1929fe8bcecSArkadi Sharshevsky offloaded:1; 1931214628cSNikolay Aleksandrov 1941214628cSNikolay Aleksandrov /* write-heavy members should not affect lookups */ 1951214628cSNikolay Aleksandrov unsigned long updated ____cacheline_aligned_in_smp; 1961214628cSNikolay Aleksandrov unsigned long used; 1971214628cSNikolay Aleksandrov 198b22fbf22SNikolay Aleksandrov struct rcu_head rcu; 1991da177e4SLinus Torvalds }; 2001da177e4SLinus Torvalds 2019d06b6d8SElad Raz #define MDB_PG_FLAGS_PERMANENT BIT(0) 2029d06b6d8SElad Raz #define MDB_PG_FLAGS_OFFLOAD BIT(1) 2039d06b6d8SElad Raz 204eb1d1641SHerbert Xu struct net_bridge_port_group { 205eb1d1641SHerbert Xu struct net_bridge_port *port; 206e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 207eb1d1641SHerbert Xu struct hlist_node mglist; 208eb1d1641SHerbert Xu struct rcu_head rcu; 209eb1d1641SHerbert Xu struct timer_list timer; 2108ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 2119d06b6d8SElad Raz unsigned char flags; 2126db6f0eaSFelix Fietkau unsigned char eth_addr[ETH_ALEN]; 213eb1d1641SHerbert Xu }; 214eb1d1641SHerbert Xu 2151c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_entry { 216eb1d1641SHerbert Xu struct hlist_node hlist[2]; 217eb1d1641SHerbert Xu struct net_bridge *br; 218e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 219eb1d1641SHerbert Xu struct rcu_head rcu; 220eb1d1641SHerbert Xu struct timer_list timer; 2218ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 222ff0fd34eSAndrew Lunn bool host_joined; 223eb1d1641SHerbert Xu }; 224eb1d1641SHerbert Xu 2251c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_htable { 226eb1d1641SHerbert Xu struct hlist_head *mhash; 227eb1d1641SHerbert Xu struct rcu_head rcu; 228eb1d1641SHerbert Xu struct net_bridge_mdb_htable *old; 229eb1d1641SHerbert Xu u32 size; 230eb1d1641SHerbert Xu u32 max; 231eb1d1641SHerbert Xu u32 secret; 232eb1d1641SHerbert Xu u32 ver; 233eb1d1641SHerbert Xu }; 234eb1d1641SHerbert Xu 2351f90c7f3SNikolay Aleksandrov struct net_bridge_port { 2361da177e4SLinus Torvalds struct net_bridge *br; 2371da177e4SLinus Torvalds struct net_device *dev; 2381da177e4SLinus Torvalds struct list_head list; 2391da177e4SLinus Torvalds 2401f90c7f3SNikolay Aleksandrov unsigned long flags; 2411f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 2421f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 2431f90c7f3SNikolay Aleksandrov #endif 2442756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 2451f90c7f3SNikolay Aleksandrov 2461da177e4SLinus Torvalds /* STP */ 2471da177e4SLinus Torvalds u8 priority; 2481da177e4SLinus Torvalds u8 state; 2491da177e4SLinus Torvalds u16 port_no; 2501da177e4SLinus Torvalds unsigned char topology_change_ack; 2511da177e4SLinus Torvalds unsigned char config_pending; 2521da177e4SLinus Torvalds port_id port_id; 2531da177e4SLinus Torvalds port_id designated_port; 2541da177e4SLinus Torvalds bridge_id designated_root; 2551da177e4SLinus Torvalds bridge_id designated_bridge; 2561da177e4SLinus Torvalds u32 path_cost; 2571da177e4SLinus Torvalds u32 designated_cost; 2580c03150eSstephen hemminger unsigned long designated_age; 2591da177e4SLinus Torvalds 2601da177e4SLinus Torvalds struct timer_list forward_delay_timer; 2611da177e4SLinus Torvalds struct timer_list hold_timer; 2621da177e4SLinus Torvalds struct timer_list message_age_timer; 2631da177e4SLinus Torvalds struct kobject kobj; 2641da177e4SLinus Torvalds struct rcu_head rcu; 2653982d3d2SFischer, Anna 266eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 26790010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 268cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 26990010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 270cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 271eb1d1641SHerbert Xu unsigned char multicast_router; 2721080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 273eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 274eb1d1641SHerbert Xu struct hlist_head mglist; 275eb1d1641SHerbert Xu struct hlist_node rlist; 276eb1d1641SHerbert Xu #endif 277e0f43752SSimon Arlott 278e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 279e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 280e0f43752SSimon Arlott #endif 28191d2c34aSHerbert Xu 28291d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 28391d2c34aSHerbert Xu struct netpoll *np; 28491d2c34aSHerbert Xu #endif 2856bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 2866bc506b4SIdo Schimmel int offload_fwd_mark; 2876bc506b4SIdo Schimmel #endif 2885af48b59SNikolay Aleksandrov u16 group_fwd_mask; 2892756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 2901da177e4SLinus Torvalds }; 2911da177e4SLinus Torvalds 292705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 293705e0deaSTyler Hicks 294e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 295f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 296e028e4b8SVlad Yasevich 297f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 298f350a0a8SJiri Pirko 299b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 300b5ed54e9Sstephen hemminger { 301716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 302b5ed54e9Sstephen hemminger } 303b5ed54e9Sstephen hemminger 3041fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 305b5ed54e9Sstephen hemminger { 306ec1e5610SEric Dumazet return br_port_exists(dev) ? 307ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 308b5ed54e9Sstephen hemminger } 309b5ed54e9Sstephen hemminger 3100baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 3110baa10ffSArkadi Sharshevsky { 3120baa10ffSArkadi Sharshevsky return br_port_exists(dev) ? 3130baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3140baa10ffSArkadi Sharshevsky } 3150baa10ffSArkadi Sharshevsky 316ae75767eSNikolay Aleksandrov enum net_bridge_opts { 317ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 318ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 3198df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 3208df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 3218df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 322be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 32313cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 324675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 325675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 326675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 327675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 328c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 3293341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 3309163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 33170e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 332ae75767eSNikolay Aleksandrov }; 333ae75767eSNikolay Aleksandrov 3341f90c7f3SNikolay Aleksandrov struct net_bridge { 3351da177e4SLinus Torvalds spinlock_t lock; 3361f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 3371da177e4SLinus Torvalds struct list_head port_list; 3381da177e4SLinus Torvalds struct net_device *dev; 3398f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 340ae75767eSNikolay Aleksandrov unsigned long options; 3411f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3421f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3431f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3441f90c7f3SNikolay Aleksandrov u16 default_pvid; 3451f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3461f90c7f3SNikolay Aleksandrov #endif 3471f90c7f3SNikolay Aleksandrov 348eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 34934666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 350efb6de9bSBernhard Thaler union { 3514adf0af6SSimon Wunderlich struct rtable fake_rtable; 352efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 353efb6de9bSBernhard Thaler }; 3544adf0af6SSimon Wunderlich #endif 355515853ccSstephen hemminger u16 group_fwd_mask; 356f2808d22SToshiaki Makita u16 group_fwd_mask_required; 357515853ccSstephen hemminger 3581da177e4SLinus Torvalds /* STP */ 3591da177e4SLinus Torvalds bridge_id designated_root; 3601da177e4SLinus Torvalds bridge_id bridge_id; 3611f90c7f3SNikolay Aleksandrov unsigned char topology_change; 3621f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 3631f90c7f3SNikolay Aleksandrov u16 root_port; 3641da177e4SLinus Torvalds unsigned long max_age; 3651da177e4SLinus Torvalds unsigned long hello_time; 3661da177e4SLinus Torvalds unsigned long forward_delay; 3671da177e4SLinus Torvalds unsigned long ageing_time; 36834d8acd8SVivien Didelot unsigned long bridge_max_age; 3691da177e4SLinus Torvalds unsigned long bridge_hello_time; 3701da177e4SLinus Torvalds unsigned long bridge_forward_delay; 37134d8acd8SVivien Didelot unsigned long bridge_ageing_time; 37235750b0bSNikolay Aleksandrov u32 root_path_cost; 3731da177e4SLinus Torvalds 374fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 3759cde0708SStephen Hemminger 3769cde0708SStephen Hemminger enum { 3779cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 3789cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 3799cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 3809cde0708SStephen Hemminger } stp_enabled; 3819cde0708SStephen Hemminger 382eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 383eb1d1641SHerbert Xu 384eb1d1641SHerbert Xu u32 hash_elasticity; 385eb1d1641SHerbert Xu u32 hash_max; 386eb1d1641SHerbert Xu 387eb1d1641SHerbert Xu u32 multicast_last_member_count; 388eb1d1641SHerbert Xu u32 multicast_startup_query_count; 389eb1d1641SHerbert Xu 3905e923585SNikolay Aleksandrov u8 multicast_igmp_version; 391675779adSNikolay Aleksandrov u8 multicast_router; 392675779adSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 393675779adSNikolay Aleksandrov u8 multicast_mld_version; 394675779adSNikolay Aleksandrov #endif 39535750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 396eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 397eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 398eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 399eb1d1641SHerbert Xu unsigned long multicast_query_interval; 400eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 401eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 402eb1d1641SHerbert Xu 403e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 404eb1d1641SHerbert Xu struct hlist_head router_list; 405eb1d1641SHerbert Xu 406eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 40790010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 40890010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 409dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 4101080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 411cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 41290010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 41390010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 414dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 415cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 416eb1d1641SHerbert Xu #endif 417eb1d1641SHerbert Xu 4181da177e4SLinus Torvalds struct timer_list hello_timer; 4191da177e4SLinus Torvalds struct timer_list tcn_timer; 4201da177e4SLinus Torvalds struct timer_list topology_change_timer; 421f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 42243b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 423e028e4b8SVlad Yasevich u32 auto_cnt; 4246bc506b4SIdo Schimmel 4256bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4266bc506b4SIdo Schimmel int offload_fwd_mark; 4276bc506b4SIdo Schimmel #endif 428eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4291da177e4SLinus Torvalds }; 4301da177e4SLinus Torvalds 43168b7c895SHerbert Xu struct br_input_skb_cb { 43268b7c895SHerbert Xu struct net_device *brdev; 43393fdd47eSHerbert Xu 43432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 435eb1d1641SHerbert Xu int igmp; 436eb1d1641SHerbert Xu int mrouters_only; 43732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 43893fdd47eSHerbert Xu 439842a9ae0SJouni Malinen bool proxyarp_replied; 4407d850abdSNikolay Aleksandrov bool src_port_isolated; 44193fdd47eSHerbert Xu 44220adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 44320adfa1aSVlad Yasevich bool vlan_filtered; 44420adfa1aSVlad Yasevich #endif 4456bc506b4SIdo Schimmel 4466bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4476bc506b4SIdo Schimmel int offload_fwd_mark; 4486bc506b4SIdo Schimmel #endif 44968b7c895SHerbert Xu }; 45068b7c895SHerbert Xu 45168b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 45268b7c895SHerbert Xu 45332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 45432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 45532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 45632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 45732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 45832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 45928a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 46028a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 46128a16c97Sstephen hemminger 46228a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 46328a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 46428a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 46528a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 46628a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 46728a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 46828a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 46928a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 47028a16c97Sstephen hemminger 47128a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 47228a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 47328a16c97Sstephen hemminger 4741da177e4SLinus Torvalds /* called under bridge lock */ 4751da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 4761da177e4SLinus Torvalds { 4771da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 4781da177e4SLinus Torvalds } 4791da177e4SLinus Torvalds 4802594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 4812594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 4822594e906SNikolay Aleksandrov { 4832594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 4842594e906SNikolay Aleksandrov } 4852594e906SNikolay Aleksandrov 4862594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 4872594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 4882594e906SNikolay Aleksandrov { 4892594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 4902594e906SNikolay Aleksandrov } 4912594e906SNikolay Aleksandrov 4926be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 4932594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 4942594e906SNikolay Aleksandrov { 4952594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 4962594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 4972594e906SNikolay Aleksandrov return true; 4982594e906SNikolay Aleksandrov else 4992594e906SNikolay Aleksandrov return false; 5002594e906SNikolay Aleksandrov } 5012594e906SNikolay Aleksandrov 5022594e906SNikolay Aleksandrov return true; 5032594e906SNikolay Aleksandrov } 5042594e906SNikolay Aleksandrov 505ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 506ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 507ae75767eSNikolay Aleksandrov { 508ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 509ae75767eSNikolay Aleksandrov } 510ae75767eSNikolay Aleksandrov 511a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 512a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 513a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 514a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 515a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 516a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 517a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 518a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 519ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 520ae75767eSNikolay Aleksandrov 5211da177e4SLinus Torvalds /* br_device.c */ 522348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 523348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 524348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 525cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 52691d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 52791d2c34aSHerbert Xu struct sk_buff *skb) 52891d2c34aSHerbert Xu { 52991d2c34aSHerbert Xu struct netpoll *np = p->np; 53091d2c34aSHerbert Xu 53191d2c34aSHerbert Xu if (np) 53291d2c34aSHerbert Xu netpoll_send_skb(np, skb); 53391d2c34aSHerbert Xu } 53491d2c34aSHerbert Xu 535a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 536348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 53791d2c34aSHerbert Xu #else 5389f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 53991d2c34aSHerbert Xu struct sk_buff *skb) 54091d2c34aSHerbert Xu { 54191d2c34aSHerbert Xu } 54291d2c34aSHerbert Xu 543a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 54491d2c34aSHerbert Xu { 54591d2c34aSHerbert Xu return 0; 54691d2c34aSHerbert Xu } 54791d2c34aSHerbert Xu 54891d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 54991d2c34aSHerbert Xu { 55091d2c34aSHerbert Xu } 551cfb478daSstephen hemminger #endif 5521da177e4SLinus Torvalds 5531da177e4SLinus Torvalds /* br_fdb.c */ 554348662a1SJoe Perches int br_fdb_init(void); 555348662a1SJoe Perches void br_fdb_fini(void); 556eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 557eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 558348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 559424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 560424bb9c9SToshiaki Makita const struct net_bridge_port *p, 561424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 562348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 563348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 564f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 565348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 5661ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 567bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 568bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 569bfd0aeacSNikolay Aleksandrov __u16 vid); 570348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 571348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 572348662a1SJoe Perches unsigned long off); 573348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 574348662a1SJoe Perches const unsigned char *addr, u16 vid); 575348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 576a5642ab4SToshiaki Makita const unsigned char *addr, u16 vid, bool added_by_user); 57777162022SJohn Fastabend 578348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 579f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 580348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 581f6f6424bSJiri Pirko const unsigned char *addr, u16 vid, u16 nlh_flags); 582348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 583d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 5848db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 5858db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 5863aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 587161d82deSPetr Machata const unsigned char *addr, u16 vid, 588161d82deSPetr Machata bool swdev_notify); 5893aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 590161d82deSPetr Machata const unsigned char *addr, u16 vid, 591161d82deSPetr Machata bool swdev_notify); 5929fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 593e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 5941da177e4SLinus Torvalds 5951da177e4SLinus Torvalds /* br_forward.c */ 5968addd5e7SNikolay Aleksandrov enum br_pkt_type { 5978addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 5988addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 5998addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 6008addd5e7SNikolay Aleksandrov }; 6010c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 602b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 60337b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 6040c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 60537b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 6068addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 6071da177e4SLinus Torvalds 6087d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 6097d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 6107d850abdSNikolay Aleksandrov const struct sk_buff *skb) 6117d850abdSNikolay Aleksandrov { 6127d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 6137d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 6147d850abdSNikolay Aleksandrov } 6157d850abdSNikolay Aleksandrov 6161da177e4SLinus Torvalds /* br_if.c */ 617faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 618348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 619348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 620ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 621ca752be0SDavid Ahern struct netlink_ext_ack *extack); 622348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 623804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 624348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 625c8f44affSMichał Mirosław netdev_features_t features); 626e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 6272796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 6282756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 6291da177e4SLinus Torvalds 6301da177e4SLinus Torvalds /* br_input.c */ 6310c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 632348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 6331da177e4SLinus Torvalds 634859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 635859828c0SJiri Pirko { 636859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 637859828c0SJiri Pirko } 638859828c0SJiri Pirko 6394d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 6404d4fd361SPetr Machata { 6414d4fd361SPetr Machata return rcu_dereference_rtnl(dev->rx_handler) == br_handle_frame; 6424d4fd361SPetr Machata } 6434d4fd361SPetr Machata 644859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 645859828c0SJiri Pirko { 646859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 647859828c0SJiri Pirko } 648859828c0SJiri Pirko 6494d4fd361SPetr Machata static inline struct net_bridge_port * 6504d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 6514d4fd361SPetr Machata { 6524d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 6534d4fd361SPetr Machata } 6544d4fd361SPetr Machata 6551da177e4SLinus Torvalds /* br_ioctl.c */ 656348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 657348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 658348662a1SJoe Perches void __user *arg); 6591da177e4SLinus Torvalds 660eb1d1641SHerbert Xu /* br_multicast.c */ 661eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 6622ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 663348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 664fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 665348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 666eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 6671080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 668348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 669348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 670348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 671348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 672348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 673348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 674e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 67537b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 67637b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 677348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 678348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 679348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 680348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 681348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 6825e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 683aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 684aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 685aa2ae3e7SNikolay Aleksandrov #endif 686348662a1SJoe Perches struct net_bridge_mdb_entry * 687348662a1SJoe Perches br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); 688348662a1SJoe Perches struct net_bridge_mdb_entry * 689348662a1SJoe Perches br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, 690348662a1SJoe Perches struct br_ip *group); 691348662a1SJoe Perches void br_multicast_free_pg(struct rcu_head *head); 692348662a1SJoe Perches struct net_bridge_port_group * 693348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 694762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 6956db6f0eaSFelix Fietkau unsigned char flags, const unsigned char *src); 696348662a1SJoe Perches void br_mdb_init(void); 697348662a1SJoe Perches void br_mdb_uninit(void); 69845ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 69945ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 700949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 701949f1e39SSatish Ashok int type); 7021080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 703a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 7041080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 705b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 7061080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 7071080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 7081080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 70985b35269SSridhar Samudrala 710cfd56754SCong Wang #define mlock_dereference(X, br) \ 711cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 712cfd56754SCong Wang 71385b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 71485b35269SSridhar Samudrala { 71585b35269SSridhar Samudrala return br->multicast_router == 2 || 71685b35269SSridhar Samudrala (br->multicast_router == 1 && 71785b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 71885b35269SSridhar Samudrala } 719b00589afSLinus Lüssing 720cc0fdd80SLinus Lüssing static inline bool 721cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 7220888d5f3Sdaniel struct bridge_mcast_other_query *querier, 7230888d5f3Sdaniel const bool is_ipv6) 724b00589afSLinus Lüssing { 7250888d5f3Sdaniel bool own_querier_enabled; 7260888d5f3Sdaniel 727675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 728675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 7290888d5f3Sdaniel own_querier_enabled = false; 7300888d5f3Sdaniel else 7310888d5f3Sdaniel own_querier_enabled = true; 7320888d5f3Sdaniel } else { 7330888d5f3Sdaniel own_querier_enabled = false; 7340888d5f3Sdaniel } 7350888d5f3Sdaniel 736cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 7370888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 738cc0fdd80SLinus Lüssing } 739cc0fdd80SLinus Lüssing 740cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 741cc0fdd80SLinus Lüssing struct ethhdr *eth) 742cc0fdd80SLinus Lüssing { 743cc0fdd80SLinus Lüssing switch (eth->h_proto) { 744cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 7450888d5f3Sdaniel return __br_multicast_querier_exists(br, 7460888d5f3Sdaniel &br->ip4_other_query, false); 747cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 748cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 7490888d5f3Sdaniel return __br_multicast_querier_exists(br, 7500888d5f3Sdaniel &br->ip6_other_query, true); 751cc0fdd80SLinus Lüssing #endif 752cc0fdd80SLinus Lüssing default: 753cc0fdd80SLinus Lüssing return false; 754cc0fdd80SLinus Lüssing } 755b00589afSLinus Lüssing } 7561080ab95SNikolay Aleksandrov 7571080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 7581080ab95SNikolay Aleksandrov { 7591080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 7601080ab95SNikolay Aleksandrov } 761eb1d1641SHerbert Xu #else 762eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 763eb1d1641SHerbert Xu struct net_bridge_port *port, 76406499098SVlad Yasevich struct sk_buff *skb, 76506499098SVlad Yasevich u16 vid) 766eb1d1641SHerbert Xu { 767eb1d1641SHerbert Xu return 0; 768eb1d1641SHerbert Xu } 769eb1d1641SHerbert Xu 770eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 771fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 772eb1d1641SHerbert Xu { 773eb1d1641SHerbert Xu return NULL; 774eb1d1641SHerbert Xu } 775eb1d1641SHerbert Xu 7761080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 777eb1d1641SHerbert Xu { 7781080ab95SNikolay Aleksandrov return 0; 779eb1d1641SHerbert Xu } 780eb1d1641SHerbert Xu 781eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 782eb1d1641SHerbert Xu { 783eb1d1641SHerbert Xu } 784eb1d1641SHerbert Xu 785eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 786eb1d1641SHerbert Xu { 787eb1d1641SHerbert Xu } 788eb1d1641SHerbert Xu 789eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 790eb1d1641SHerbert Xu { 791eb1d1641SHerbert Xu } 792eb1d1641SHerbert Xu 793eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 794eb1d1641SHerbert Xu { 795eb1d1641SHerbert Xu } 796eb1d1641SHerbert Xu 797eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 798eb1d1641SHerbert Xu { 799eb1d1641SHerbert Xu } 800eb1d1641SHerbert Xu 801eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 802eb1d1641SHerbert Xu { 803eb1d1641SHerbert Xu } 8045cb5e947SHerbert Xu 805a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 806a7ce45a7SNikolay Aleksandrov { 807a7ce45a7SNikolay Aleksandrov } 808a7ce45a7SNikolay Aleksandrov 80937b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 81037b090e6SNikolay Aleksandrov struct sk_buff *skb, 81137b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 8125cb5e947SHerbert Xu { 8135cb5e947SHerbert Xu } 8145cb5e947SHerbert Xu 815eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 816eb1d1641SHerbert Xu { 81703aaa9e2SGustavo A. R. Silva return false; 818eb1d1641SHerbert Xu } 81937b090e6SNikolay Aleksandrov 820cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 821cc0fdd80SLinus Lüssing struct ethhdr *eth) 822b00589afSLinus Lüssing { 823b00589afSLinus Lüssing return false; 824b00589afSLinus Lüssing } 82537b090e6SNikolay Aleksandrov 826fdb184d1SRami Rosen static inline void br_mdb_init(void) 827fdb184d1SRami Rosen { 828fdb184d1SRami Rosen } 82937b090e6SNikolay Aleksandrov 830fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 831fdb184d1SRami Rosen { 832fdb184d1SRami Rosen } 8331080ab95SNikolay Aleksandrov 8341080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 8351080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 836a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 837a65056ecSNikolay Aleksandrov u8 type, u8 dir) 8381080ab95SNikolay Aleksandrov { 8391080ab95SNikolay Aleksandrov } 8401080ab95SNikolay Aleksandrov 8411080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 8421080ab95SNikolay Aleksandrov { 8431080ab95SNikolay Aleksandrov return 0; 8441080ab95SNikolay Aleksandrov } 8451080ab95SNikolay Aleksandrov 846b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 847b6fe0440SIdo Schimmel { 848b6fe0440SIdo Schimmel } 849b6fe0440SIdo Schimmel 8501080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 8511080ab95SNikolay Aleksandrov { 8521080ab95SNikolay Aleksandrov return 0; 8531080ab95SNikolay Aleksandrov } 85485b35269SSridhar Samudrala #endif 855eb1d1641SHerbert Xu 856243a2e63SVlad Yasevich /* br_vlan.c */ 857243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 85877751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 85977751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 8602594e906SNikolay Aleksandrov u16 *vid); 86177751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 86285f46c6bSVlad Yasevich const struct sk_buff *skb); 863e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 864348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 86511538d03SRoopa Prabhu const struct net_bridge_port *port, 8662594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 86778851988SVlad Yasevich struct sk_buff *skb); 868f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 869f418af63SNikolay Aleksandrov bool *changed); 870348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 871348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 8722594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 873204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 874a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 875348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 876d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 877204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 8786dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 8799163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 8805be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 88196a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 8820f963b75SNikolay Aleksandrov int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid); 883f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 884f418af63SNikolay Aleksandrov bool *changed); 885348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 886348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 8875be5a2dfSVlad Yasevich int nbp_vlan_init(struct net_bridge_port *port); 8882594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 889a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 890a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 891a37b85c9SVlad Yasevich 8922594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 893a37b85c9SVlad Yasevich const struct net_bridge *br) 894a37b85c9SVlad Yasevich { 895907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 896a37b85c9SVlad Yasevich } 897a37b85c9SVlad Yasevich 8982594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 899a37b85c9SVlad Yasevich const struct net_bridge_port *p) 900a37b85c9SVlad Yasevich { 901907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 902907b1e6eSNikolay Aleksandrov } 903907b1e6eSNikolay Aleksandrov 904907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 905907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 906907b1e6eSNikolay Aleksandrov { 907907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 908907b1e6eSNikolay Aleksandrov } 909907b1e6eSNikolay Aleksandrov 910907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 911907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 912907b1e6eSNikolay Aleksandrov { 913907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 914a37b85c9SVlad Yasevich } 915a37b85c9SVlad Yasevich 916a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 917a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 918a37b85c9SVlad Yasevich */ 919a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 920a37b85c9SVlad Yasevich { 921a37b85c9SVlad Yasevich int err = 0; 922a37b85c9SVlad Yasevich 9232594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 9245978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 9252594e906SNikolay Aleksandrov } else { 926a37b85c9SVlad Yasevich *vid = 0; 927a37b85c9SVlad Yasevich err = -EINVAL; 928a37b85c9SVlad Yasevich } 929a37b85c9SVlad Yasevich 930a37b85c9SVlad Yasevich return err; 931a37b85c9SVlad Yasevich } 93278851988SVlad Yasevich 93377751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 93478851988SVlad Yasevich { 93577751ee8SNikolay Aleksandrov if (!vg) 9365be5a2dfSVlad Yasevich return 0; 9375be5a2dfSVlad Yasevich 93878851988SVlad Yasevich smp_rmb(); 93977751ee8SNikolay Aleksandrov return vg->pvid; 94078851988SVlad Yasevich } 94178851988SVlad Yasevich 942243a2e63SVlad Yasevich #else 94377751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 94477751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 9452594e906SNikolay Aleksandrov struct sk_buff *skb, 9462594e906SNikolay Aleksandrov u16 *vid) 9472594e906SNikolay Aleksandrov { 9482594e906SNikolay Aleksandrov return true; 9492594e906SNikolay Aleksandrov } 9502594e906SNikolay Aleksandrov 9512594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 95285f46c6bSVlad Yasevich const struct sk_buff *skb) 95385f46c6bSVlad Yasevich { 95485f46c6bSVlad Yasevich return true; 95585f46c6bSVlad Yasevich } 95685f46c6bSVlad Yasevich 957e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 958e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 959e0d7968aSToshiaki Makita { 960e0d7968aSToshiaki Makita return true; 961e0d7968aSToshiaki Makita } 962e0d7968aSToshiaki Makita 96378851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 96411538d03SRoopa Prabhu const struct net_bridge_port *port, 9652594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 96678851988SVlad Yasevich struct sk_buff *skb) 96778851988SVlad Yasevich { 96878851988SVlad Yasevich return skb; 96978851988SVlad Yasevich } 97078851988SVlad Yasevich 971f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 972f418af63SNikolay Aleksandrov bool *changed) 973243a2e63SVlad Yasevich { 974f418af63SNikolay Aleksandrov *changed = false; 975243a2e63SVlad Yasevich return -EOPNOTSUPP; 976243a2e63SVlad Yasevich } 977243a2e63SVlad Yasevich 978243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 979243a2e63SVlad Yasevich { 980243a2e63SVlad Yasevich return -EOPNOTSUPP; 981243a2e63SVlad Yasevich } 982243a2e63SVlad Yasevich 983243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 984243a2e63SVlad Yasevich { 985243a2e63SVlad Yasevich } 986243a2e63SVlad Yasevich 987204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 988204177f3SToshiaki Makita { 989204177f3SToshiaki Makita } 990204177f3SToshiaki Makita 9915be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 9928580e211SToshiaki Makita { 9935be5a2dfSVlad Yasevich return 0; 9948580e211SToshiaki Makita } 9958580e211SToshiaki Makita 996f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 997f418af63SNikolay Aleksandrov bool *changed) 998243a2e63SVlad Yasevich { 999f418af63SNikolay Aleksandrov *changed = false; 1000243a2e63SVlad Yasevich return -EOPNOTSUPP; 1001243a2e63SVlad Yasevich } 1002243a2e63SVlad Yasevich 1003243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1004243a2e63SVlad Yasevich { 1005243a2e63SVlad Yasevich return -EOPNOTSUPP; 1006243a2e63SVlad Yasevich } 1007243a2e63SVlad Yasevich 1008243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1009243a2e63SVlad Yasevich { 1010243a2e63SVlad Yasevich } 1011243a2e63SVlad Yasevich 10122594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 10132594e906SNikolay Aleksandrov u16 vid) 1014a37b85c9SVlad Yasevich { 1015a37b85c9SVlad Yasevich return NULL; 1016a37b85c9SVlad Yasevich } 1017bc9a25d2SVlad Yasevich 10185be5a2dfSVlad Yasevich static inline int nbp_vlan_init(struct net_bridge_port *port) 10195be5a2dfSVlad Yasevich { 10205be5a2dfSVlad Yasevich return 0; 10215be5a2dfSVlad Yasevich } 10225be5a2dfSVlad Yasevich 102378851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1024a37b85c9SVlad Yasevich { 1025a37b85c9SVlad Yasevich return 0; 1026a37b85c9SVlad Yasevich } 10272594e906SNikolay Aleksandrov 102877751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 102978851988SVlad Yasevich { 10303df6bf45SVlad Yasevich return 0; 103178851988SVlad Yasevich } 10322796d0c6SVlad Yasevich 1033a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1034a7854037SNikolay Aleksandrov unsigned long val) 1035a7854037SNikolay Aleksandrov { 1036a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1037a7854037SNikolay Aleksandrov } 10382594e906SNikolay Aleksandrov 10392594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 10402594e906SNikolay Aleksandrov u32 filter_mask) 10412594e906SNikolay Aleksandrov { 10422594e906SNikolay Aleksandrov return 0; 10432594e906SNikolay Aleksandrov } 10442594e906SNikolay Aleksandrov 10452594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 10462594e906SNikolay Aleksandrov const struct net_bridge *br) 10472594e906SNikolay Aleksandrov { 10482594e906SNikolay Aleksandrov return NULL; 10492594e906SNikolay Aleksandrov } 10502594e906SNikolay Aleksandrov 10512594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 10522594e906SNikolay Aleksandrov const struct net_bridge_port *p) 10532594e906SNikolay Aleksandrov { 10542594e906SNikolay Aleksandrov return NULL; 10552594e906SNikolay Aleksandrov } 1056907b1e6eSNikolay Aleksandrov 1057907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1058907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1059907b1e6eSNikolay Aleksandrov { 1060907b1e6eSNikolay Aleksandrov return NULL; 1061907b1e6eSNikolay Aleksandrov } 1062907b1e6eSNikolay Aleksandrov 1063907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1064907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1065907b1e6eSNikolay Aleksandrov { 1066907b1e6eSNikolay Aleksandrov return NULL; 1067907b1e6eSNikolay Aleksandrov } 1068a60c0903SNikolay Aleksandrov 1069a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1070a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1071a60c0903SNikolay Aleksandrov { 1072a60c0903SNikolay Aleksandrov } 1073243a2e63SVlad Yasevich #endif 1074243a2e63SVlad Yasevich 10751a4ba64dSPablo Neira Ayuso struct nf_br_ops { 10761a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 10771a4ba64dSPablo Neira Ayuso }; 10781a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 10791a4ba64dSPablo Neira Ayuso 10801da177e4SLinus Torvalds /* br_netfilter.c */ 108134666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 108234666d46SPablo Neira Ayuso int br_nf_core_init(void); 108334666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1084348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1085c0909713SStephen Hemminger #else 108634666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 108734666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 10884adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1089c0909713SStephen Hemminger #endif 10901da177e4SLinus Torvalds 10911da177e4SLinus Torvalds /* br_stp.c */ 1092775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1093348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1094348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1095348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 10961da177e4SLinus Torvalds 1097348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1098348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1099348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1100348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 110182dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 11029e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 110314f98f25Sstephen hemminger 110414f98f25Sstephen hemminger 11051da177e4SLinus Torvalds /* br_stp_if.c */ 1106348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1107348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1108348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 1109348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1110348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1111348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1112348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1113348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1114348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1115348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1116348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 11171da177e4SLinus Torvalds 11181da177e4SLinus Torvalds /* br_stp_bpdu.c */ 11197c85fbf0SPatrick McHardy struct stp_proto; 1120348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 11217c85fbf0SPatrick McHardy struct net_device *dev); 11221da177e4SLinus Torvalds 11231da177e4SLinus Torvalds /* br_stp_timer.c */ 1124348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1125348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1126348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 11271da177e4SLinus Torvalds 11281da177e4SLinus Torvalds /* br.c */ 1129e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1130da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1131da678292SMichał Mirosław #endif 11321da177e4SLinus Torvalds 113311dc1f36SStephen Hemminger /* br_netlink.c */ 1134149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1135348662a1SJoe Perches int br_netlink_init(void); 1136348662a1SJoe Perches void br_netlink_fini(void); 113792899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 113892899063SNikolay Aleksandrov const struct net_bridge_port *port); 1139add511b3SRoopa Prabhu int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1140add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1141348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 114246c264daSNicolas Dichtel u32 filter_mask, int nlflags); 114311dc1f36SStephen Hemminger 11441da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 11451da177e4SLinus Torvalds /* br_sysfs_if.c */ 114652cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1147348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1148348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 11491da177e4SLinus Torvalds 11501da177e4SLinus Torvalds /* br_sysfs_br.c */ 1151348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1152348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 11531da177e4SLinus Torvalds 11541da177e4SLinus Torvalds #else 11551da177e4SLinus Torvalds 11560cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 11570cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 11580cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 11590cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 11601da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 11611da177e4SLinus Torvalds 11626bc506b4SIdo Schimmel /* br_switchdev.c */ 11636bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 11646bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 11656bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 11666bc506b4SIdo Schimmel struct sk_buff *skb); 11676bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 11686bc506b4SIdo Schimmel const struct sk_buff *skb); 11693922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 11703922285dSArkadi Sharshevsky unsigned long flags, 11713922285dSArkadi Sharshevsky unsigned long mask); 11726b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 11736b26b51bSArkadi Sharshevsky int type); 1174d66e4348SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags); 1175d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1176f1c2eddfSIdo Schimmel 1177f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1178f1c2eddfSIdo Schimmel { 1179f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1180f1c2eddfSIdo Schimmel } 11816bc506b4SIdo Schimmel #else 11826bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 11836bc506b4SIdo Schimmel { 11846bc506b4SIdo Schimmel return 0; 11856bc506b4SIdo Schimmel } 11866bc506b4SIdo Schimmel 11876bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 11886bc506b4SIdo Schimmel struct sk_buff *skb) 11896bc506b4SIdo Schimmel { 11906bc506b4SIdo Schimmel } 11916bc506b4SIdo Schimmel 11926bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 11936bc506b4SIdo Schimmel const struct sk_buff *skb) 11946bc506b4SIdo Schimmel { 11956bc506b4SIdo Schimmel return true; 11966bc506b4SIdo Schimmel } 11973922285dSArkadi Sharshevsky 11983922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 11993922285dSArkadi Sharshevsky unsigned long flags, 12003922285dSArkadi Sharshevsky unsigned long mask) 12013922285dSArkadi Sharshevsky { 12023922285dSArkadi Sharshevsky return 0; 12033922285dSArkadi Sharshevsky } 12046b26b51bSArkadi Sharshevsky 1205d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1206d66e4348SPetr Machata u16 vid, u16 flags) 1207d66e4348SPetr Machata { 1208d66e4348SPetr Machata return -EOPNOTSUPP; 1209d66e4348SPetr Machata } 1210d66e4348SPetr Machata 1211d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1212d66e4348SPetr Machata { 1213d66e4348SPetr Machata return -EOPNOTSUPP; 1214d66e4348SPetr Machata } 1215d66e4348SPetr Machata 12166b26b51bSArkadi Sharshevsky static inline void 12176b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 12186b26b51bSArkadi Sharshevsky { 12196b26b51bSArkadi Sharshevsky } 1220f1c2eddfSIdo Schimmel 1221f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1222f1c2eddfSIdo Schimmel { 1223f1c2eddfSIdo Schimmel } 12246bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 12256bc506b4SIdo Schimmel 1226057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1227821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1228057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1229057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1230ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1231ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1232ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 12331da177e4SLinus Torvalds #endif 1234