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 { 21619e3a9c9SNikolay Aleksandrov struct rhash_head rhnode; 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; 22319e3a9c9SNikolay Aleksandrov struct hlist_node mdb_node; 224eb1d1641SHerbert Xu }; 225eb1d1641SHerbert Xu 2261f90c7f3SNikolay Aleksandrov struct net_bridge_port { 2271da177e4SLinus Torvalds struct net_bridge *br; 2281da177e4SLinus Torvalds struct net_device *dev; 2291da177e4SLinus Torvalds struct list_head list; 2301da177e4SLinus Torvalds 2311f90c7f3SNikolay Aleksandrov unsigned long flags; 2321f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 2331f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 2341f90c7f3SNikolay Aleksandrov #endif 2352756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 2361f90c7f3SNikolay Aleksandrov 2371da177e4SLinus Torvalds /* STP */ 2381da177e4SLinus Torvalds u8 priority; 2391da177e4SLinus Torvalds u8 state; 2401da177e4SLinus Torvalds u16 port_no; 2411da177e4SLinus Torvalds unsigned char topology_change_ack; 2421da177e4SLinus Torvalds unsigned char config_pending; 2431da177e4SLinus Torvalds port_id port_id; 2441da177e4SLinus Torvalds port_id designated_port; 2451da177e4SLinus Torvalds bridge_id designated_root; 2461da177e4SLinus Torvalds bridge_id designated_bridge; 2471da177e4SLinus Torvalds u32 path_cost; 2481da177e4SLinus Torvalds u32 designated_cost; 2490c03150eSstephen hemminger unsigned long designated_age; 2501da177e4SLinus Torvalds 2511da177e4SLinus Torvalds struct timer_list forward_delay_timer; 2521da177e4SLinus Torvalds struct timer_list hold_timer; 2531da177e4SLinus Torvalds struct timer_list message_age_timer; 2541da177e4SLinus Torvalds struct kobject kobj; 2551da177e4SLinus Torvalds struct rcu_head rcu; 2563982d3d2SFischer, Anna 257eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 25890010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 259cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 26090010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 261cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 262eb1d1641SHerbert Xu unsigned char multicast_router; 2631080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 264eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 265eb1d1641SHerbert Xu struct hlist_head mglist; 266eb1d1641SHerbert Xu struct hlist_node rlist; 267eb1d1641SHerbert Xu #endif 268e0f43752SSimon Arlott 269e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 270e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 271e0f43752SSimon Arlott #endif 27291d2c34aSHerbert Xu 27391d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 27491d2c34aSHerbert Xu struct netpoll *np; 27591d2c34aSHerbert Xu #endif 2766bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 2776bc506b4SIdo Schimmel int offload_fwd_mark; 2786bc506b4SIdo Schimmel #endif 2795af48b59SNikolay Aleksandrov u16 group_fwd_mask; 2802756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 2811da177e4SLinus Torvalds }; 2821da177e4SLinus Torvalds 283705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 284705e0deaSTyler Hicks 285e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 286f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 287e028e4b8SVlad Yasevich 288f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 289f350a0a8SJiri Pirko 290b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 291b5ed54e9Sstephen hemminger { 292716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 293b5ed54e9Sstephen hemminger } 294b5ed54e9Sstephen hemminger 2951fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 296b5ed54e9Sstephen hemminger { 297ec1e5610SEric Dumazet return br_port_exists(dev) ? 298ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 299b5ed54e9Sstephen hemminger } 300b5ed54e9Sstephen hemminger 3010baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 3020baa10ffSArkadi Sharshevsky { 3030baa10ffSArkadi Sharshevsky return br_port_exists(dev) ? 3040baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3050baa10ffSArkadi Sharshevsky } 3060baa10ffSArkadi Sharshevsky 307ae75767eSNikolay Aleksandrov enum net_bridge_opts { 308ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 309ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 3108df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 3118df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 3128df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 313be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 31413cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 315675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 316675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 317675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 318675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 319c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 3203341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 3219163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 32270e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 323ae75767eSNikolay Aleksandrov }; 324ae75767eSNikolay Aleksandrov 3251f90c7f3SNikolay Aleksandrov struct net_bridge { 3261da177e4SLinus Torvalds spinlock_t lock; 3271f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 3281da177e4SLinus Torvalds struct list_head port_list; 3291da177e4SLinus Torvalds struct net_device *dev; 3308f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 331ae75767eSNikolay Aleksandrov unsigned long options; 3321f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3331f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3341f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3351f90c7f3SNikolay Aleksandrov u16 default_pvid; 3361f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3371f90c7f3SNikolay Aleksandrov #endif 3381f90c7f3SNikolay Aleksandrov 339eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 34034666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 341efb6de9bSBernhard Thaler union { 3424adf0af6SSimon Wunderlich struct rtable fake_rtable; 343efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 344efb6de9bSBernhard Thaler }; 3454adf0af6SSimon Wunderlich #endif 346515853ccSstephen hemminger u16 group_fwd_mask; 347f2808d22SToshiaki Makita u16 group_fwd_mask_required; 348515853ccSstephen hemminger 3491da177e4SLinus Torvalds /* STP */ 3501da177e4SLinus Torvalds bridge_id designated_root; 3511da177e4SLinus Torvalds bridge_id bridge_id; 3521f90c7f3SNikolay Aleksandrov unsigned char topology_change; 3531f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 3541f90c7f3SNikolay Aleksandrov u16 root_port; 3551da177e4SLinus Torvalds unsigned long max_age; 3561da177e4SLinus Torvalds unsigned long hello_time; 3571da177e4SLinus Torvalds unsigned long forward_delay; 3581da177e4SLinus Torvalds unsigned long ageing_time; 35934d8acd8SVivien Didelot unsigned long bridge_max_age; 3601da177e4SLinus Torvalds unsigned long bridge_hello_time; 3611da177e4SLinus Torvalds unsigned long bridge_forward_delay; 36234d8acd8SVivien Didelot unsigned long bridge_ageing_time; 36335750b0bSNikolay Aleksandrov u32 root_path_cost; 3641da177e4SLinus Torvalds 365fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 3669cde0708SStephen Hemminger 3679cde0708SStephen Hemminger enum { 3689cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 3699cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 3709cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 3719cde0708SStephen Hemminger } stp_enabled; 3729cde0708SStephen Hemminger 373eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 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; 382675779adSNikolay Aleksandrov u8 multicast_router; 383675779adSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 384675779adSNikolay Aleksandrov u8 multicast_mld_version; 385675779adSNikolay Aleksandrov #endif 38635750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 387eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 388eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 389eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 390eb1d1641SHerbert Xu unsigned long multicast_query_interval; 391eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 392eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 393eb1d1641SHerbert Xu 39419e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 39519e3a9c9SNikolay Aleksandrov 39619e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 397eb1d1641SHerbert Xu struct hlist_head router_list; 398eb1d1641SHerbert Xu 399eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 40090010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 40190010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 402dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 4031080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 404cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 40590010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 40690010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 407dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 408cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 409eb1d1641SHerbert Xu #endif 410eb1d1641SHerbert Xu 4111da177e4SLinus Torvalds struct timer_list hello_timer; 4121da177e4SLinus Torvalds struct timer_list tcn_timer; 4131da177e4SLinus Torvalds struct timer_list topology_change_timer; 414f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 41543b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 416e028e4b8SVlad Yasevich u32 auto_cnt; 4176bc506b4SIdo Schimmel 4186bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4196bc506b4SIdo Schimmel int offload_fwd_mark; 4206bc506b4SIdo Schimmel #endif 421eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4221da177e4SLinus Torvalds }; 4231da177e4SLinus Torvalds 42468b7c895SHerbert Xu struct br_input_skb_cb { 42568b7c895SHerbert Xu struct net_device *brdev; 42693fdd47eSHerbert Xu 42732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 428eb1d1641SHerbert Xu int igmp; 429eb1d1641SHerbert Xu int mrouters_only; 43032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 43193fdd47eSHerbert Xu 432842a9ae0SJouni Malinen bool proxyarp_replied; 4337d850abdSNikolay Aleksandrov bool src_port_isolated; 43493fdd47eSHerbert Xu 43520adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 43620adfa1aSVlad Yasevich bool vlan_filtered; 43720adfa1aSVlad Yasevich #endif 4386bc506b4SIdo Schimmel 4396bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4406bc506b4SIdo Schimmel int offload_fwd_mark; 4416bc506b4SIdo Schimmel #endif 44268b7c895SHerbert Xu }; 44368b7c895SHerbert Xu 44468b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 44568b7c895SHerbert Xu 44632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 44732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 44832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 44932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 45032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 45132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 45228a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 45328a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 45428a16c97Sstephen hemminger 45528a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 45628a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 45728a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 45828a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 45928a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 46028a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 46128a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 46228a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 46328a16c97Sstephen hemminger 46428a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 46528a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 46628a16c97Sstephen hemminger 4671da177e4SLinus Torvalds /* called under bridge lock */ 4681da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 4691da177e4SLinus Torvalds { 4701da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 4711da177e4SLinus Torvalds } 4721da177e4SLinus Torvalds 4732594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 4742594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 4752594e906SNikolay Aleksandrov { 4762594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 4772594e906SNikolay Aleksandrov } 4782594e906SNikolay Aleksandrov 4792594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 4802594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 4812594e906SNikolay Aleksandrov { 4822594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 4832594e906SNikolay Aleksandrov } 4842594e906SNikolay Aleksandrov 4856be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 4862594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 4872594e906SNikolay Aleksandrov { 4882594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 4892594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 4902594e906SNikolay Aleksandrov return true; 4912594e906SNikolay Aleksandrov else 4922594e906SNikolay Aleksandrov return false; 4932594e906SNikolay Aleksandrov } 4942594e906SNikolay Aleksandrov 4952594e906SNikolay Aleksandrov return true; 4962594e906SNikolay Aleksandrov } 4972594e906SNikolay Aleksandrov 498ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 499ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 500ae75767eSNikolay Aleksandrov { 501ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 502ae75767eSNikolay Aleksandrov } 503ae75767eSNikolay Aleksandrov 504a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 505a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 506a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 507a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 508a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 509a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 510a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 511a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 512ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 513ae75767eSNikolay Aleksandrov 5141da177e4SLinus Torvalds /* br_device.c */ 515348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 516348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 517348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 518cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 51991d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 52091d2c34aSHerbert Xu struct sk_buff *skb) 52191d2c34aSHerbert Xu { 52291d2c34aSHerbert Xu struct netpoll *np = p->np; 52391d2c34aSHerbert Xu 52491d2c34aSHerbert Xu if (np) 52591d2c34aSHerbert Xu netpoll_send_skb(np, skb); 52691d2c34aSHerbert Xu } 52791d2c34aSHerbert Xu 528a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 529348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 53091d2c34aSHerbert Xu #else 5319f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 53291d2c34aSHerbert Xu struct sk_buff *skb) 53391d2c34aSHerbert Xu { 53491d2c34aSHerbert Xu } 53591d2c34aSHerbert Xu 536a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 53791d2c34aSHerbert Xu { 53891d2c34aSHerbert Xu return 0; 53991d2c34aSHerbert Xu } 54091d2c34aSHerbert Xu 54191d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 54291d2c34aSHerbert Xu { 54391d2c34aSHerbert Xu } 544cfb478daSstephen hemminger #endif 5451da177e4SLinus Torvalds 5461da177e4SLinus Torvalds /* br_fdb.c */ 547348662a1SJoe Perches int br_fdb_init(void); 548348662a1SJoe Perches void br_fdb_fini(void); 549eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 550eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 551348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 552424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 553424bb9c9SToshiaki Makita const struct net_bridge_port *p, 554424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 555348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 556348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 557f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 558348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 5591ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 560bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 561bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 562bfd0aeacSNikolay Aleksandrov __u16 vid); 563348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 564348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 565348662a1SJoe Perches unsigned long off); 566348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 567348662a1SJoe Perches const unsigned char *addr, u16 vid); 568348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 569a5642ab4SToshiaki Makita const unsigned char *addr, u16 vid, bool added_by_user); 57077162022SJohn Fastabend 571348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 572f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 573348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 574f6f6424bSJiri Pirko const unsigned char *addr, u16 vid, u16 nlh_flags); 575348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 576d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 5778db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 5788db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 5793aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 580161d82deSPetr Machata const unsigned char *addr, u16 vid, 581161d82deSPetr Machata bool swdev_notify); 5823aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 583161d82deSPetr Machata const unsigned char *addr, u16 vid, 584161d82deSPetr Machata bool swdev_notify); 5859fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 586e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 5871da177e4SLinus Torvalds 5881da177e4SLinus Torvalds /* br_forward.c */ 5898addd5e7SNikolay Aleksandrov enum br_pkt_type { 5908addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 5918addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 5928addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 5938addd5e7SNikolay Aleksandrov }; 5940c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 595b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 59637b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 5970c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 59837b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 5998addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 6001da177e4SLinus Torvalds 6017d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 6027d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 6037d850abdSNikolay Aleksandrov const struct sk_buff *skb) 6047d850abdSNikolay Aleksandrov { 6057d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 6067d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 6077d850abdSNikolay Aleksandrov } 6087d850abdSNikolay Aleksandrov 6091da177e4SLinus Torvalds /* br_if.c */ 610faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 611348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 612348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 613ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 614ca752be0SDavid Ahern struct netlink_ext_ack *extack); 615348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 616804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 617348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 618c8f44affSMichał Mirosław netdev_features_t features); 619e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 6202796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 6212756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 6221da177e4SLinus Torvalds 6231da177e4SLinus Torvalds /* br_input.c */ 6240c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 625348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 6261da177e4SLinus Torvalds 627859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 628859828c0SJiri Pirko { 629859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 630859828c0SJiri Pirko } 631859828c0SJiri Pirko 6324d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 6334d4fd361SPetr Machata { 6344d4fd361SPetr Machata return rcu_dereference_rtnl(dev->rx_handler) == br_handle_frame; 6354d4fd361SPetr Machata } 6364d4fd361SPetr Machata 637859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 638859828c0SJiri Pirko { 639859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 640859828c0SJiri Pirko } 641859828c0SJiri Pirko 6424d4fd361SPetr Machata static inline struct net_bridge_port * 6434d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 6444d4fd361SPetr Machata { 6454d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 6464d4fd361SPetr Machata } 6474d4fd361SPetr Machata 6481da177e4SLinus Torvalds /* br_ioctl.c */ 649348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 650348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 651348662a1SJoe Perches void __user *arg); 6521da177e4SLinus Torvalds 653eb1d1641SHerbert Xu /* br_multicast.c */ 654eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 655348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 656fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 657348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 658eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 6591080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 660348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 661348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 662348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 663348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 664348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 665348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 666e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 66737b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 66837b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 669348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 670348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 671348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 672348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 673348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 6745e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 675aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 676aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 677aa2ae3e7SNikolay Aleksandrov #endif 678348662a1SJoe Perches struct net_bridge_mdb_entry * 67919e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 680348662a1SJoe Perches struct net_bridge_mdb_entry * 68119e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 682348662a1SJoe Perches void br_multicast_free_pg(struct rcu_head *head); 683348662a1SJoe Perches struct net_bridge_port_group * 684348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 685762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 6866db6f0eaSFelix Fietkau unsigned char flags, const unsigned char *src); 68719e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 68819e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 68945ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 69045ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 691949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 692949f1e39SSatish Ashok int type); 6931080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 694a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 6951080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 696b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 6971080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 6981080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 6991080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 70019e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 70119e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 70285b35269SSridhar Samudrala 703cfd56754SCong Wang #define mlock_dereference(X, br) \ 704cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 705cfd56754SCong Wang 70685b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 70785b35269SSridhar Samudrala { 70885b35269SSridhar Samudrala return br->multicast_router == 2 || 70985b35269SSridhar Samudrala (br->multicast_router == 1 && 71085b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 71185b35269SSridhar Samudrala } 712b00589afSLinus Lüssing 713cc0fdd80SLinus Lüssing static inline bool 714cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 7150888d5f3Sdaniel struct bridge_mcast_other_query *querier, 7160888d5f3Sdaniel const bool is_ipv6) 717b00589afSLinus Lüssing { 7180888d5f3Sdaniel bool own_querier_enabled; 7190888d5f3Sdaniel 720675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 721675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 7220888d5f3Sdaniel own_querier_enabled = false; 7230888d5f3Sdaniel else 7240888d5f3Sdaniel own_querier_enabled = true; 7250888d5f3Sdaniel } else { 7260888d5f3Sdaniel own_querier_enabled = false; 7270888d5f3Sdaniel } 7280888d5f3Sdaniel 729cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 7300888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 731cc0fdd80SLinus Lüssing } 732cc0fdd80SLinus Lüssing 733cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 734cc0fdd80SLinus Lüssing struct ethhdr *eth) 735cc0fdd80SLinus Lüssing { 736cc0fdd80SLinus Lüssing switch (eth->h_proto) { 737cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 7380888d5f3Sdaniel return __br_multicast_querier_exists(br, 7390888d5f3Sdaniel &br->ip4_other_query, false); 740cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 741cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 7420888d5f3Sdaniel return __br_multicast_querier_exists(br, 7430888d5f3Sdaniel &br->ip6_other_query, true); 744cc0fdd80SLinus Lüssing #endif 745cc0fdd80SLinus Lüssing default: 746cc0fdd80SLinus Lüssing return false; 747cc0fdd80SLinus Lüssing } 748b00589afSLinus Lüssing } 7491080ab95SNikolay Aleksandrov 7501080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 7511080ab95SNikolay Aleksandrov { 7521080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 7531080ab95SNikolay Aleksandrov } 754eb1d1641SHerbert Xu #else 755eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 756eb1d1641SHerbert Xu struct net_bridge_port *port, 75706499098SVlad Yasevich struct sk_buff *skb, 75806499098SVlad Yasevich u16 vid) 759eb1d1641SHerbert Xu { 760eb1d1641SHerbert Xu return 0; 761eb1d1641SHerbert Xu } 762eb1d1641SHerbert Xu 763eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 764fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 765eb1d1641SHerbert Xu { 766eb1d1641SHerbert Xu return NULL; 767eb1d1641SHerbert Xu } 768eb1d1641SHerbert Xu 7691080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 770eb1d1641SHerbert Xu { 7711080ab95SNikolay Aleksandrov return 0; 772eb1d1641SHerbert Xu } 773eb1d1641SHerbert Xu 774eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 775eb1d1641SHerbert Xu { 776eb1d1641SHerbert Xu } 777eb1d1641SHerbert Xu 778eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 779eb1d1641SHerbert Xu { 780eb1d1641SHerbert Xu } 781eb1d1641SHerbert Xu 782eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 783eb1d1641SHerbert Xu { 784eb1d1641SHerbert Xu } 785eb1d1641SHerbert Xu 786eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 787eb1d1641SHerbert Xu { 788eb1d1641SHerbert Xu } 789eb1d1641SHerbert Xu 790eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 791eb1d1641SHerbert Xu { 792eb1d1641SHerbert Xu } 793eb1d1641SHerbert Xu 794eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 795eb1d1641SHerbert Xu { 796eb1d1641SHerbert Xu } 7975cb5e947SHerbert Xu 798a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 799a7ce45a7SNikolay Aleksandrov { 800a7ce45a7SNikolay Aleksandrov } 801a7ce45a7SNikolay Aleksandrov 80237b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 80337b090e6SNikolay Aleksandrov struct sk_buff *skb, 80437b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 8055cb5e947SHerbert Xu { 8065cb5e947SHerbert Xu } 8075cb5e947SHerbert Xu 808eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 809eb1d1641SHerbert Xu { 81003aaa9e2SGustavo A. R. Silva return false; 811eb1d1641SHerbert Xu } 81237b090e6SNikolay Aleksandrov 813cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 814cc0fdd80SLinus Lüssing struct ethhdr *eth) 815b00589afSLinus Lüssing { 816b00589afSLinus Lüssing return false; 817b00589afSLinus Lüssing } 81837b090e6SNikolay Aleksandrov 819fdb184d1SRami Rosen static inline void br_mdb_init(void) 820fdb184d1SRami Rosen { 821fdb184d1SRami Rosen } 82237b090e6SNikolay Aleksandrov 823fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 824fdb184d1SRami Rosen { 825fdb184d1SRami Rosen } 8261080ab95SNikolay Aleksandrov 82719e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 82819e3a9c9SNikolay Aleksandrov { 82919e3a9c9SNikolay Aleksandrov return 0; 83019e3a9c9SNikolay Aleksandrov } 83119e3a9c9SNikolay Aleksandrov 83219e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 83319e3a9c9SNikolay Aleksandrov { 83419e3a9c9SNikolay Aleksandrov } 83519e3a9c9SNikolay Aleksandrov 8361080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 8371080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 838a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 839a65056ecSNikolay Aleksandrov u8 type, u8 dir) 8401080ab95SNikolay Aleksandrov { 8411080ab95SNikolay Aleksandrov } 8421080ab95SNikolay Aleksandrov 8431080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 8441080ab95SNikolay Aleksandrov { 8451080ab95SNikolay Aleksandrov return 0; 8461080ab95SNikolay Aleksandrov } 8471080ab95SNikolay Aleksandrov 848b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 849b6fe0440SIdo Schimmel { 850b6fe0440SIdo Schimmel } 851b6fe0440SIdo Schimmel 8521080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 8531080ab95SNikolay Aleksandrov { 8541080ab95SNikolay Aleksandrov return 0; 8551080ab95SNikolay Aleksandrov } 85685b35269SSridhar Samudrala #endif 857eb1d1641SHerbert Xu 858243a2e63SVlad Yasevich /* br_vlan.c */ 859243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 86077751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 86177751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 8622594e906SNikolay Aleksandrov u16 *vid); 86377751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 86485f46c6bSVlad Yasevich const struct sk_buff *skb); 865e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 866348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 86711538d03SRoopa Prabhu const struct net_bridge_port *port, 8682594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 86978851988SVlad Yasevich struct sk_buff *skb); 870f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 871f418af63SNikolay Aleksandrov bool *changed); 872348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 873348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 8742594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 875204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 876a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 877348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 878d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 879204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 8806dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 8819163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 8825be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 88396a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 8840f963b75SNikolay Aleksandrov int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid); 885f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 886f418af63SNikolay Aleksandrov bool *changed); 887348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 888348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 8895be5a2dfSVlad Yasevich int nbp_vlan_init(struct net_bridge_port *port); 8902594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 891a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 892a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 893a37b85c9SVlad Yasevich 8942594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 895a37b85c9SVlad Yasevich const struct net_bridge *br) 896a37b85c9SVlad Yasevich { 897907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 898a37b85c9SVlad Yasevich } 899a37b85c9SVlad Yasevich 9002594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 901a37b85c9SVlad Yasevich const struct net_bridge_port *p) 902a37b85c9SVlad Yasevich { 903907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 904907b1e6eSNikolay Aleksandrov } 905907b1e6eSNikolay Aleksandrov 906907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 907907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 908907b1e6eSNikolay Aleksandrov { 909907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 910907b1e6eSNikolay Aleksandrov } 911907b1e6eSNikolay Aleksandrov 912907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 913907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 914907b1e6eSNikolay Aleksandrov { 915907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 916a37b85c9SVlad Yasevich } 917a37b85c9SVlad Yasevich 918a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 919a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 920a37b85c9SVlad Yasevich */ 921a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 922a37b85c9SVlad Yasevich { 923a37b85c9SVlad Yasevich int err = 0; 924a37b85c9SVlad Yasevich 9252594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 9265978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 9272594e906SNikolay Aleksandrov } else { 928a37b85c9SVlad Yasevich *vid = 0; 929a37b85c9SVlad Yasevich err = -EINVAL; 930a37b85c9SVlad Yasevich } 931a37b85c9SVlad Yasevich 932a37b85c9SVlad Yasevich return err; 933a37b85c9SVlad Yasevich } 93478851988SVlad Yasevich 93577751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 93678851988SVlad Yasevich { 93777751ee8SNikolay Aleksandrov if (!vg) 9385be5a2dfSVlad Yasevich return 0; 9395be5a2dfSVlad Yasevich 94078851988SVlad Yasevich smp_rmb(); 94177751ee8SNikolay Aleksandrov return vg->pvid; 94278851988SVlad Yasevich } 94378851988SVlad Yasevich 944243a2e63SVlad Yasevich #else 94577751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 94677751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 9472594e906SNikolay Aleksandrov struct sk_buff *skb, 9482594e906SNikolay Aleksandrov u16 *vid) 9492594e906SNikolay Aleksandrov { 9502594e906SNikolay Aleksandrov return true; 9512594e906SNikolay Aleksandrov } 9522594e906SNikolay Aleksandrov 9532594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 95485f46c6bSVlad Yasevich const struct sk_buff *skb) 95585f46c6bSVlad Yasevich { 95685f46c6bSVlad Yasevich return true; 95785f46c6bSVlad Yasevich } 95885f46c6bSVlad Yasevich 959e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 960e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 961e0d7968aSToshiaki Makita { 962e0d7968aSToshiaki Makita return true; 963e0d7968aSToshiaki Makita } 964e0d7968aSToshiaki Makita 96578851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 96611538d03SRoopa Prabhu const struct net_bridge_port *port, 9672594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 96878851988SVlad Yasevich struct sk_buff *skb) 96978851988SVlad Yasevich { 97078851988SVlad Yasevich return skb; 97178851988SVlad Yasevich } 97278851988SVlad Yasevich 973f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 974f418af63SNikolay Aleksandrov bool *changed) 975243a2e63SVlad Yasevich { 976f418af63SNikolay Aleksandrov *changed = false; 977243a2e63SVlad Yasevich return -EOPNOTSUPP; 978243a2e63SVlad Yasevich } 979243a2e63SVlad Yasevich 980243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 981243a2e63SVlad Yasevich { 982243a2e63SVlad Yasevich return -EOPNOTSUPP; 983243a2e63SVlad Yasevich } 984243a2e63SVlad Yasevich 985243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 986243a2e63SVlad Yasevich { 987243a2e63SVlad Yasevich } 988243a2e63SVlad Yasevich 989204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 990204177f3SToshiaki Makita { 991204177f3SToshiaki Makita } 992204177f3SToshiaki Makita 9935be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 9948580e211SToshiaki Makita { 9955be5a2dfSVlad Yasevich return 0; 9968580e211SToshiaki Makita } 9978580e211SToshiaki Makita 998f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 999f418af63SNikolay Aleksandrov bool *changed) 1000243a2e63SVlad Yasevich { 1001f418af63SNikolay Aleksandrov *changed = false; 1002243a2e63SVlad Yasevich return -EOPNOTSUPP; 1003243a2e63SVlad Yasevich } 1004243a2e63SVlad Yasevich 1005243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1006243a2e63SVlad Yasevich { 1007243a2e63SVlad Yasevich return -EOPNOTSUPP; 1008243a2e63SVlad Yasevich } 1009243a2e63SVlad Yasevich 1010243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1011243a2e63SVlad Yasevich { 1012243a2e63SVlad Yasevich } 1013243a2e63SVlad Yasevich 10142594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 10152594e906SNikolay Aleksandrov u16 vid) 1016a37b85c9SVlad Yasevich { 1017a37b85c9SVlad Yasevich return NULL; 1018a37b85c9SVlad Yasevich } 1019bc9a25d2SVlad Yasevich 10205be5a2dfSVlad Yasevich static inline int nbp_vlan_init(struct net_bridge_port *port) 10215be5a2dfSVlad Yasevich { 10225be5a2dfSVlad Yasevich return 0; 10235be5a2dfSVlad Yasevich } 10245be5a2dfSVlad Yasevich 102578851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1026a37b85c9SVlad Yasevich { 1027a37b85c9SVlad Yasevich return 0; 1028a37b85c9SVlad Yasevich } 10292594e906SNikolay Aleksandrov 103077751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 103178851988SVlad Yasevich { 10323df6bf45SVlad Yasevich return 0; 103378851988SVlad Yasevich } 10342796d0c6SVlad Yasevich 1035a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1036a7854037SNikolay Aleksandrov unsigned long val) 1037a7854037SNikolay Aleksandrov { 1038a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1039a7854037SNikolay Aleksandrov } 10402594e906SNikolay Aleksandrov 10412594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 10422594e906SNikolay Aleksandrov u32 filter_mask) 10432594e906SNikolay Aleksandrov { 10442594e906SNikolay Aleksandrov return 0; 10452594e906SNikolay Aleksandrov } 10462594e906SNikolay Aleksandrov 10472594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 10482594e906SNikolay Aleksandrov const struct net_bridge *br) 10492594e906SNikolay Aleksandrov { 10502594e906SNikolay Aleksandrov return NULL; 10512594e906SNikolay Aleksandrov } 10522594e906SNikolay Aleksandrov 10532594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 10542594e906SNikolay Aleksandrov const struct net_bridge_port *p) 10552594e906SNikolay Aleksandrov { 10562594e906SNikolay Aleksandrov return NULL; 10572594e906SNikolay Aleksandrov } 1058907b1e6eSNikolay Aleksandrov 1059907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1060907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1061907b1e6eSNikolay Aleksandrov { 1062907b1e6eSNikolay Aleksandrov return NULL; 1063907b1e6eSNikolay Aleksandrov } 1064907b1e6eSNikolay Aleksandrov 1065907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1066907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1067907b1e6eSNikolay Aleksandrov { 1068907b1e6eSNikolay Aleksandrov return NULL; 1069907b1e6eSNikolay Aleksandrov } 1070a60c0903SNikolay Aleksandrov 1071a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1072a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1073a60c0903SNikolay Aleksandrov { 1074a60c0903SNikolay Aleksandrov } 1075243a2e63SVlad Yasevich #endif 1076243a2e63SVlad Yasevich 10771a4ba64dSPablo Neira Ayuso struct nf_br_ops { 10781a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 10791a4ba64dSPablo Neira Ayuso }; 10801a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 10811a4ba64dSPablo Neira Ayuso 10821da177e4SLinus Torvalds /* br_netfilter.c */ 108334666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 108434666d46SPablo Neira Ayuso int br_nf_core_init(void); 108534666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1086348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1087c0909713SStephen Hemminger #else 108834666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 108934666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 10904adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1091c0909713SStephen Hemminger #endif 10921da177e4SLinus Torvalds 10931da177e4SLinus Torvalds /* br_stp.c */ 1094775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1095348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1096348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1097348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 10981da177e4SLinus Torvalds 1099348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1100348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1101348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1102348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 110382dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 11049e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 110514f98f25Sstephen hemminger 110614f98f25Sstephen hemminger 11071da177e4SLinus Torvalds /* br_stp_if.c */ 1108348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1109348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1110348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 1111348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1112348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1113348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1114348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1115348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1116348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1117348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1118348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 11191da177e4SLinus Torvalds 11201da177e4SLinus Torvalds /* br_stp_bpdu.c */ 11217c85fbf0SPatrick McHardy struct stp_proto; 1122348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 11237c85fbf0SPatrick McHardy struct net_device *dev); 11241da177e4SLinus Torvalds 11251da177e4SLinus Torvalds /* br_stp_timer.c */ 1126348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1127348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1128348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 11291da177e4SLinus Torvalds 11301da177e4SLinus Torvalds /* br.c */ 1131e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1132da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1133da678292SMichał Mirosław #endif 11341da177e4SLinus Torvalds 113511dc1f36SStephen Hemminger /* br_netlink.c */ 1136149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1137348662a1SJoe Perches int br_netlink_init(void); 1138348662a1SJoe Perches void br_netlink_fini(void); 113992899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 114092899063SNikolay Aleksandrov const struct net_bridge_port *port); 1141add511b3SRoopa Prabhu int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1142add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1143348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 114446c264daSNicolas Dichtel u32 filter_mask, int nlflags); 114511dc1f36SStephen Hemminger 11461da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 11471da177e4SLinus Torvalds /* br_sysfs_if.c */ 114852cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1149348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1150348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 11511da177e4SLinus Torvalds 11521da177e4SLinus Torvalds /* br_sysfs_br.c */ 1153348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1154348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 11551da177e4SLinus Torvalds 11561da177e4SLinus Torvalds #else 11571da177e4SLinus Torvalds 11580cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 11590cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 11600cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 11610cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 11621da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 11631da177e4SLinus Torvalds 11646bc506b4SIdo Schimmel /* br_switchdev.c */ 11656bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 11666bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 11676bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 11686bc506b4SIdo Schimmel struct sk_buff *skb); 11696bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 11706bc506b4SIdo Schimmel const struct sk_buff *skb); 11713922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 11723922285dSArkadi Sharshevsky unsigned long flags, 11733922285dSArkadi Sharshevsky unsigned long mask); 11746b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 11756b26b51bSArkadi Sharshevsky int type); 1176d66e4348SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags); 1177d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1178f1c2eddfSIdo Schimmel 1179f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1180f1c2eddfSIdo Schimmel { 1181f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1182f1c2eddfSIdo Schimmel } 11836bc506b4SIdo Schimmel #else 11846bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 11856bc506b4SIdo Schimmel { 11866bc506b4SIdo Schimmel return 0; 11876bc506b4SIdo Schimmel } 11886bc506b4SIdo Schimmel 11896bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 11906bc506b4SIdo Schimmel struct sk_buff *skb) 11916bc506b4SIdo Schimmel { 11926bc506b4SIdo Schimmel } 11936bc506b4SIdo Schimmel 11946bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 11956bc506b4SIdo Schimmel const struct sk_buff *skb) 11966bc506b4SIdo Schimmel { 11976bc506b4SIdo Schimmel return true; 11986bc506b4SIdo Schimmel } 11993922285dSArkadi Sharshevsky 12003922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 12013922285dSArkadi Sharshevsky unsigned long flags, 12023922285dSArkadi Sharshevsky unsigned long mask) 12033922285dSArkadi Sharshevsky { 12043922285dSArkadi Sharshevsky return 0; 12053922285dSArkadi Sharshevsky } 12066b26b51bSArkadi Sharshevsky 1207d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1208d66e4348SPetr Machata u16 vid, u16 flags) 1209d66e4348SPetr Machata { 1210d66e4348SPetr Machata return -EOPNOTSUPP; 1211d66e4348SPetr Machata } 1212d66e4348SPetr Machata 1213d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1214d66e4348SPetr Machata { 1215d66e4348SPetr Machata return -EOPNOTSUPP; 1216d66e4348SPetr Machata } 1217d66e4348SPetr Machata 12186b26b51bSArkadi Sharshevsky static inline void 12196b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 12206b26b51bSArkadi Sharshevsky { 12216b26b51bSArkadi Sharshevsky } 1222f1c2eddfSIdo Schimmel 1223f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1224f1c2eddfSIdo Schimmel { 1225f1c2eddfSIdo Schimmel } 12266bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 12276bc506b4SIdo Schimmel 1228057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1229821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1230057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1231057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1232ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1233ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1234ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 12351da177e4SLinus Torvalds #endif 1236