12874c5fdSThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-or-later */ 21da177e4SLinus Torvalds /* 31da177e4SLinus Torvalds * Linux ethernet bridge 41da177e4SLinus Torvalds * 51da177e4SLinus Torvalds * Authors: 61da177e4SLinus Torvalds * Lennert Buytenhek <buytenh@gnu.org> 71da177e4SLinus Torvalds */ 81da177e4SLinus Torvalds 91da177e4SLinus Torvalds #ifndef _BR_PRIVATE_H 101da177e4SLinus Torvalds #define _BR_PRIVATE_H 111da177e4SLinus Torvalds 121da177e4SLinus Torvalds #include <linux/netdevice.h> 131da177e4SLinus Torvalds #include <linux/if_bridge.h> 1491d2c34aSHerbert Xu #include <linux/netpoll.h> 15406818ffSEric Dumazet #include <linux/u64_stats_sync.h> 164adf0af6SSimon Wunderlich #include <net/route.h> 17efb6de9bSBernhard Thaler #include <net/ip6_fib.h> 18243a2e63SVlad Yasevich #include <linux/if_vlan.h> 192594e906SNikolay Aleksandrov #include <linux/rhashtable.h> 2025127759SReshetova, Elena #include <linux/refcount.h> 211da177e4SLinus Torvalds 221da177e4SLinus Torvalds #define BR_HASH_BITS 8 231da177e4SLinus Torvalds #define BR_HASH_SIZE (1 << BR_HASH_BITS) 241da177e4SLinus Torvalds 251da177e4SLinus Torvalds #define BR_HOLD_TIME (1*HZ) 261da177e4SLinus Torvalds 271da177e4SLinus Torvalds #define BR_PORT_BITS 10 281da177e4SLinus Torvalds #define BR_MAX_PORTS (1<<BR_PORT_BITS) 291da177e4SLinus Torvalds 30d08c6bc0SNikolay Aleksandrov #define BR_MULTICAST_DEFAULT_HASH_MAX 4096 31d08c6bc0SNikolay Aleksandrov 329cde0708SStephen Hemminger #define BR_VERSION "2.3" 339cde0708SStephen Hemminger 34515853ccSstephen hemminger /* Control of forwarding link local multicast */ 35515853ccSstephen hemminger #define BR_GROUPFWD_DEFAULT 0 36784b58a3SBernhard Thaler /* Don't allow forwarding of control protocols like STP, MAC PAUSE and LACP */ 375af48b59SNikolay Aleksandrov enum { 385af48b59SNikolay Aleksandrov BR_GROUPFWD_STP = BIT(0), 395af48b59SNikolay Aleksandrov BR_GROUPFWD_MACPAUSE = BIT(1), 405af48b59SNikolay Aleksandrov BR_GROUPFWD_LACP = BIT(2), 415af48b59SNikolay Aleksandrov }; 425af48b59SNikolay Aleksandrov 435af48b59SNikolay Aleksandrov #define BR_GROUPFWD_RESTRICTED (BR_GROUPFWD_STP | BR_GROUPFWD_MACPAUSE | \ 445af48b59SNikolay Aleksandrov BR_GROUPFWD_LACP) 45f2808d22SToshiaki Makita /* The Nearest Customer Bridge Group Address, 01-80-C2-00-00-[00,0B,0C,0D,0F] */ 46f2808d22SToshiaki Makita #define BR_GROUPFWD_8021AD 0xB801u 47515853ccSstephen hemminger 489cde0708SStephen Hemminger /* Path to usermode spanning tree program */ 499cde0708SStephen Hemminger #define BR_STP_PROG "/sbin/bridge-stp" 508cbb512eSStephen Hemminger 511da177e4SLinus Torvalds typedef struct bridge_id bridge_id; 521da177e4SLinus Torvalds typedef struct mac_addr mac_addr; 531da177e4SLinus Torvalds typedef __u16 port_id; 541da177e4SLinus Torvalds 551c1cb6d0SNikolay Aleksandrov struct bridge_id { 561da177e4SLinus Torvalds unsigned char prio[2]; 57e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 581da177e4SLinus Torvalds }; 591da177e4SLinus Torvalds 601c1cb6d0SNikolay Aleksandrov struct mac_addr { 61e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 621da177e4SLinus Torvalds }; 631da177e4SLinus Torvalds 64cc0fdd80SLinus Lüssing #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 65cc0fdd80SLinus Lüssing /* our own querier */ 6690010b36SLinus Lüssing struct bridge_mcast_own_query { 67cc0fdd80SLinus Lüssing struct timer_list timer; 68cc0fdd80SLinus Lüssing u32 startup_sent; 69cc0fdd80SLinus Lüssing }; 70cc0fdd80SLinus Lüssing 71cc0fdd80SLinus Lüssing /* other querier */ 7290010b36SLinus Lüssing struct bridge_mcast_other_query { 73cc0fdd80SLinus Lüssing struct timer_list timer; 74cc0fdd80SLinus Lüssing unsigned long delay_time; 75cc0fdd80SLinus Lüssing }; 76dc4eb53aSLinus Lüssing 77dc4eb53aSLinus Lüssing /* selected querier */ 78dc4eb53aSLinus Lüssing struct bridge_mcast_querier { 79dc4eb53aSLinus Lüssing struct br_ip addr; 802cd41431SLinus Lüssing struct net_bridge_port __rcu *port; 81dc4eb53aSLinus Lüssing }; 821080ab95SNikolay Aleksandrov 831080ab95SNikolay Aleksandrov /* IGMP/MLD statistics */ 841080ab95SNikolay Aleksandrov struct bridge_mcast_stats { 851080ab95SNikolay Aleksandrov struct br_mcast_stats mstats; 861080ab95SNikolay Aleksandrov struct u64_stats_sync syncp; 871080ab95SNikolay Aleksandrov }; 88cc0fdd80SLinus Lüssing #endif 89cc0fdd80SLinus Lüssing 906dada9b1SNikolay Aleksandrov struct br_vlan_stats { 916dada9b1SNikolay Aleksandrov u64 rx_bytes; 926dada9b1SNikolay Aleksandrov u64 rx_packets; 936dada9b1SNikolay Aleksandrov u64 tx_bytes; 946dada9b1SNikolay Aleksandrov u64 tx_packets; 956dada9b1SNikolay Aleksandrov struct u64_stats_sync syncp; 966dada9b1SNikolay Aleksandrov }; 976dada9b1SNikolay Aleksandrov 98efa5356bSRoopa Prabhu struct br_tunnel_info { 99efa5356bSRoopa Prabhu __be64 tunnel_id; 100efa5356bSRoopa Prabhu struct metadata_dst *tunnel_dst; 101efa5356bSRoopa Prabhu }; 102efa5356bSRoopa Prabhu 1039d332e69SNikolay Aleksandrov /* private vlan flags */ 1049d332e69SNikolay Aleksandrov enum { 1059d332e69SNikolay Aleksandrov BR_VLFLAG_PER_PORT_STATS = BIT(0), 10627973793SIdo Schimmel BR_VLFLAG_ADDED_BY_SWITCHDEV = BIT(1), 1079d332e69SNikolay Aleksandrov }; 1089d332e69SNikolay Aleksandrov 1092594e906SNikolay Aleksandrov /** 1102594e906SNikolay Aleksandrov * struct net_bridge_vlan - per-vlan entry 1112594e906SNikolay Aleksandrov * 1122594e906SNikolay Aleksandrov * @vnode: rhashtable member 1132594e906SNikolay Aleksandrov * @vid: VLAN id 1142594e906SNikolay Aleksandrov * @flags: bridge vlan flags 1159d332e69SNikolay Aleksandrov * @priv_flags: private (in-kernel) bridge vlan flags 1166dada9b1SNikolay Aleksandrov * @stats: per-cpu VLAN statistics 1172594e906SNikolay Aleksandrov * @br: if MASTER flag set, this points to a bridge struct 1182594e906SNikolay Aleksandrov * @port: if MASTER flag unset, this points to a port struct 1192594e906SNikolay Aleksandrov * @refcnt: if MASTER flag set, this is bumped for each port referencing it 1202594e906SNikolay Aleksandrov * @brvlan: if MASTER flag unset, this points to the global per-VLAN context 1212594e906SNikolay Aleksandrov * for this VLAN entry 1222594e906SNikolay Aleksandrov * @vlist: sorted list of VLAN entries 1232594e906SNikolay Aleksandrov * @rcu: used for entry destruction 1242594e906SNikolay Aleksandrov * 1252594e906SNikolay Aleksandrov * This structure is shared between the global per-VLAN entries contained in 1262594e906SNikolay Aleksandrov * the bridge rhashtable and the local per-port per-VLAN entries contained in 1272594e906SNikolay Aleksandrov * the port's rhashtable. The union entries should be interpreted depending on 1282594e906SNikolay Aleksandrov * the entry flags that are set. 1292594e906SNikolay Aleksandrov */ 1302594e906SNikolay Aleksandrov struct net_bridge_vlan { 1312594e906SNikolay Aleksandrov struct rhash_head vnode; 132efa5356bSRoopa Prabhu struct rhash_head tnode; 1332594e906SNikolay Aleksandrov u16 vid; 1342594e906SNikolay Aleksandrov u16 flags; 1359d332e69SNikolay Aleksandrov u16 priv_flags; 1366dada9b1SNikolay Aleksandrov struct br_vlan_stats __percpu *stats; 137243a2e63SVlad Yasevich union { 138243a2e63SVlad Yasevich struct net_bridge *br; 1392594e906SNikolay Aleksandrov struct net_bridge_port *port; 1402594e906SNikolay Aleksandrov }; 1412594e906SNikolay Aleksandrov union { 14225127759SReshetova, Elena refcount_t refcnt; 1432594e906SNikolay Aleksandrov struct net_bridge_vlan *brvlan; 1442594e906SNikolay Aleksandrov }; 145efa5356bSRoopa Prabhu 146efa5356bSRoopa Prabhu struct br_tunnel_info tinfo; 147efa5356bSRoopa Prabhu 1482594e906SNikolay Aleksandrov struct list_head vlist; 1492594e906SNikolay Aleksandrov 150243a2e63SVlad Yasevich struct rcu_head rcu; 1512594e906SNikolay Aleksandrov }; 1522594e906SNikolay Aleksandrov 1532594e906SNikolay Aleksandrov /** 1542594e906SNikolay Aleksandrov * struct net_bridge_vlan_group 1552594e906SNikolay Aleksandrov * 1562594e906SNikolay Aleksandrov * @vlan_hash: VLAN entry rhashtable 1572594e906SNikolay Aleksandrov * @vlan_list: sorted VLAN entry list 1582594e906SNikolay Aleksandrov * @num_vlans: number of total VLAN entries 15977751ee8SNikolay Aleksandrov * @pvid: PVID VLAN id 1602594e906SNikolay Aleksandrov * 1612594e906SNikolay Aleksandrov * IMPORTANT: Be careful when checking if there're VLAN entries using list 1622594e906SNikolay Aleksandrov * primitives because the bridge can have entries in its list which 1632594e906SNikolay Aleksandrov * are just for global context but not for filtering, i.e. they have 1642594e906SNikolay Aleksandrov * the master flag set but not the brentry flag. If you have to check 1652594e906SNikolay Aleksandrov * if there're "real" entries in the bridge please test @num_vlans 1662594e906SNikolay Aleksandrov */ 1672594e906SNikolay Aleksandrov struct net_bridge_vlan_group { 1682594e906SNikolay Aleksandrov struct rhashtable vlan_hash; 169efa5356bSRoopa Prabhu struct rhashtable tunnel_hash; 1702594e906SNikolay Aleksandrov struct list_head vlan_list; 1716cbdceebSVlad Yasevich u16 num_vlans; 17277751ee8SNikolay Aleksandrov u16 pvid; 173243a2e63SVlad Yasevich }; 174243a2e63SVlad Yasevich 175eb793583SNikolay Aleksandrov struct net_bridge_fdb_key { 176eb793583SNikolay Aleksandrov mac_addr addr; 177eb793583SNikolay Aleksandrov u16 vlan_id; 178eb793583SNikolay Aleksandrov }; 179eb793583SNikolay Aleksandrov 1801214628cSNikolay Aleksandrov struct net_bridge_fdb_entry { 181eb793583SNikolay Aleksandrov struct rhash_head rhnode; 1821da177e4SLinus Torvalds struct net_bridge_port *dst; 1831da177e4SLinus Torvalds 184eb793583SNikolay Aleksandrov struct net_bridge_fdb_key key; 185eb793583SNikolay Aleksandrov struct hlist_node fdb_node; 18693859b13SJiri Pirko unsigned char is_local:1, 18793859b13SJiri Pirko is_static:1, 188435f2e7cSNikolay Aleksandrov is_sticky:1, 189cf6b8e1eSScott Feldman added_by_user:1, 1909fe8bcecSArkadi Sharshevsky added_by_external_learn:1, 1919fe8bcecSArkadi Sharshevsky offloaded:1; 1921214628cSNikolay Aleksandrov 1931214628cSNikolay Aleksandrov /* write-heavy members should not affect lookups */ 1941214628cSNikolay Aleksandrov unsigned long updated ____cacheline_aligned_in_smp; 1951214628cSNikolay Aleksandrov unsigned long used; 1961214628cSNikolay Aleksandrov 197b22fbf22SNikolay Aleksandrov struct rcu_head rcu; 1981da177e4SLinus Torvalds }; 1991da177e4SLinus Torvalds 2009d06b6d8SElad Raz #define MDB_PG_FLAGS_PERMANENT BIT(0) 2019d06b6d8SElad Raz #define MDB_PG_FLAGS_OFFLOAD BIT(1) 2029d06b6d8SElad Raz 203eb1d1641SHerbert Xu struct net_bridge_port_group { 204eb1d1641SHerbert Xu struct net_bridge_port *port; 205e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 206eb1d1641SHerbert Xu struct hlist_node mglist; 207eb1d1641SHerbert Xu struct rcu_head rcu; 208eb1d1641SHerbert Xu struct timer_list timer; 2098ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 2109d06b6d8SElad Raz unsigned char flags; 2116db6f0eaSFelix Fietkau unsigned char eth_addr[ETH_ALEN]; 212eb1d1641SHerbert Xu }; 213eb1d1641SHerbert Xu 2141c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_entry { 21519e3a9c9SNikolay Aleksandrov struct rhash_head rhnode; 216eb1d1641SHerbert Xu struct net_bridge *br; 217e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 218eb1d1641SHerbert Xu struct rcu_head rcu; 219eb1d1641SHerbert Xu struct timer_list timer; 2208ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 221ff0fd34eSAndrew Lunn bool host_joined; 22219e3a9c9SNikolay Aleksandrov struct hlist_node mdb_node; 223eb1d1641SHerbert Xu }; 224eb1d1641SHerbert Xu 2251f90c7f3SNikolay Aleksandrov struct net_bridge_port { 2261da177e4SLinus Torvalds struct net_bridge *br; 2271da177e4SLinus Torvalds struct net_device *dev; 2281da177e4SLinus Torvalds struct list_head list; 2291da177e4SLinus Torvalds 2301f90c7f3SNikolay Aleksandrov unsigned long flags; 2311f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 2321f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 2331f90c7f3SNikolay Aleksandrov #endif 2342756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 2351f90c7f3SNikolay Aleksandrov 2361da177e4SLinus Torvalds /* STP */ 2371da177e4SLinus Torvalds u8 priority; 2381da177e4SLinus Torvalds u8 state; 2391da177e4SLinus Torvalds u16 port_no; 2401da177e4SLinus Torvalds unsigned char topology_change_ack; 2411da177e4SLinus Torvalds unsigned char config_pending; 2421da177e4SLinus Torvalds port_id port_id; 2431da177e4SLinus Torvalds port_id designated_port; 2441da177e4SLinus Torvalds bridge_id designated_root; 2451da177e4SLinus Torvalds bridge_id designated_bridge; 2461da177e4SLinus Torvalds u32 path_cost; 2471da177e4SLinus Torvalds u32 designated_cost; 2480c03150eSstephen hemminger unsigned long designated_age; 2491da177e4SLinus Torvalds 2501da177e4SLinus Torvalds struct timer_list forward_delay_timer; 2511da177e4SLinus Torvalds struct timer_list hold_timer; 2521da177e4SLinus Torvalds struct timer_list message_age_timer; 2531da177e4SLinus Torvalds struct kobject kobj; 2541da177e4SLinus Torvalds struct rcu_head rcu; 2553982d3d2SFischer, Anna 256eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 25790010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 258cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 25990010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 260cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 261eb1d1641SHerbert Xu unsigned char multicast_router; 2621080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 263eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 264eb1d1641SHerbert Xu struct hlist_head mglist; 265eb1d1641SHerbert Xu struct hlist_node rlist; 266eb1d1641SHerbert Xu #endif 267e0f43752SSimon Arlott 268e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 269e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 270e0f43752SSimon Arlott #endif 27191d2c34aSHerbert Xu 27291d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 27391d2c34aSHerbert Xu struct netpoll *np; 27491d2c34aSHerbert Xu #endif 2756bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 2766bc506b4SIdo Schimmel int offload_fwd_mark; 2776bc506b4SIdo Schimmel #endif 2785af48b59SNikolay Aleksandrov u16 group_fwd_mask; 2792756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 2801da177e4SLinus Torvalds }; 2811da177e4SLinus Torvalds 282705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 283705e0deaSTyler Hicks 284e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 285f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 286e028e4b8SVlad Yasevich 287b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 288b5ed54e9Sstephen hemminger { 289716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 290b5ed54e9Sstephen hemminger } 291b5ed54e9Sstephen hemminger 2921fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 293b5ed54e9Sstephen hemminger { 29435f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 295ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 296b5ed54e9Sstephen hemminger } 297b5ed54e9Sstephen hemminger 2980baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 2990baa10ffSArkadi Sharshevsky { 30035f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 3010baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3020baa10ffSArkadi Sharshevsky } 3030baa10ffSArkadi Sharshevsky 304ae75767eSNikolay Aleksandrov enum net_bridge_opts { 305ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 306ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 3078df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 3088df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 3098df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 310be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 31113cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 312675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 313675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 314675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 315675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 316c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 3173341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 3189163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 31970e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 3209c0ec2e7SMike Manning BROPT_VLAN_BRIDGE_BINDING, 321ae75767eSNikolay Aleksandrov }; 322ae75767eSNikolay Aleksandrov 3231f90c7f3SNikolay Aleksandrov struct net_bridge { 3241da177e4SLinus Torvalds spinlock_t lock; 3251f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 3261da177e4SLinus Torvalds struct list_head port_list; 3271da177e4SLinus Torvalds struct net_device *dev; 3288f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 329ae75767eSNikolay Aleksandrov unsigned long options; 3301f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3311f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3321f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3331f90c7f3SNikolay Aleksandrov u16 default_pvid; 3341f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3351f90c7f3SNikolay Aleksandrov #endif 3361f90c7f3SNikolay Aleksandrov 337eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 33834666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 339efb6de9bSBernhard Thaler union { 3404adf0af6SSimon Wunderlich struct rtable fake_rtable; 341efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 342efb6de9bSBernhard Thaler }; 3434adf0af6SSimon Wunderlich #endif 344515853ccSstephen hemminger u16 group_fwd_mask; 345f2808d22SToshiaki Makita u16 group_fwd_mask_required; 346515853ccSstephen hemminger 3471da177e4SLinus Torvalds /* STP */ 3481da177e4SLinus Torvalds bridge_id designated_root; 3491da177e4SLinus Torvalds bridge_id bridge_id; 3501f90c7f3SNikolay Aleksandrov unsigned char topology_change; 3511f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 3521f90c7f3SNikolay Aleksandrov u16 root_port; 3531da177e4SLinus Torvalds unsigned long max_age; 3541da177e4SLinus Torvalds unsigned long hello_time; 3551da177e4SLinus Torvalds unsigned long forward_delay; 3561da177e4SLinus Torvalds unsigned long ageing_time; 35734d8acd8SVivien Didelot unsigned long bridge_max_age; 3581da177e4SLinus Torvalds unsigned long bridge_hello_time; 3591da177e4SLinus Torvalds unsigned long bridge_forward_delay; 36034d8acd8SVivien Didelot unsigned long bridge_ageing_time; 36135750b0bSNikolay Aleksandrov u32 root_path_cost; 3621da177e4SLinus Torvalds 363fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 3649cde0708SStephen Hemminger 3659cde0708SStephen Hemminger enum { 3669cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 3679cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 3689cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 3699cde0708SStephen Hemminger } stp_enabled; 3709cde0708SStephen Hemminger 371eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 372eb1d1641SHerbert Xu 373eb1d1641SHerbert Xu u32 hash_max; 374eb1d1641SHerbert Xu 375eb1d1641SHerbert Xu u32 multicast_last_member_count; 376eb1d1641SHerbert Xu u32 multicast_startup_query_count; 377eb1d1641SHerbert Xu 3785e923585SNikolay Aleksandrov u8 multicast_igmp_version; 379675779adSNikolay Aleksandrov u8 multicast_router; 380675779adSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 381675779adSNikolay Aleksandrov u8 multicast_mld_version; 382675779adSNikolay Aleksandrov #endif 38335750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 384eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 385eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 386eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 387eb1d1641SHerbert Xu unsigned long multicast_query_interval; 388eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 389eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 390eb1d1641SHerbert Xu 39119e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 39219e3a9c9SNikolay Aleksandrov 39319e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 394eb1d1641SHerbert Xu struct hlist_head router_list; 395eb1d1641SHerbert Xu 396eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 39790010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 39890010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 399dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 4001080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 401cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 40290010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 40390010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 404dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 405cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 406eb1d1641SHerbert Xu #endif 407eb1d1641SHerbert Xu 4081da177e4SLinus Torvalds struct timer_list hello_timer; 4091da177e4SLinus Torvalds struct timer_list tcn_timer; 4101da177e4SLinus Torvalds struct timer_list topology_change_timer; 411f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 41243b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 413e028e4b8SVlad Yasevich u32 auto_cnt; 4146bc506b4SIdo Schimmel 4156bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4166bc506b4SIdo Schimmel int offload_fwd_mark; 4176bc506b4SIdo Schimmel #endif 418eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4191da177e4SLinus Torvalds }; 4201da177e4SLinus Torvalds 42168b7c895SHerbert Xu struct br_input_skb_cb { 42268b7c895SHerbert Xu struct net_device *brdev; 42393fdd47eSHerbert Xu 42432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 425f12064d1SFlorian Westphal u8 igmp; 426f12064d1SFlorian Westphal u8 mrouters_only:1; 42732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 428f12064d1SFlorian Westphal u8 proxyarp_replied:1; 429f12064d1SFlorian Westphal u8 src_port_isolated:1; 43020adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 431f12064d1SFlorian Westphal u8 vlan_filtered:1; 43220adfa1aSVlad Yasevich #endif 433223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 434223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 435223fd0adSFlorian Westphal #endif 4366bc506b4SIdo Schimmel 4376bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4386bc506b4SIdo Schimmel int offload_fwd_mark; 4396bc506b4SIdo Schimmel #endif 44068b7c895SHerbert Xu }; 44168b7c895SHerbert Xu 44268b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 44368b7c895SHerbert Xu 44432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 44532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 44632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 44732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 44832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 44932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 45028a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 45128a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 45228a16c97Sstephen hemminger 45328a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 45428a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 45528a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 45628a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 45728a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 45828a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 45928a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 46028a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 46128a16c97Sstephen hemminger 46228a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 46328a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 46428a16c97Sstephen hemminger 4651da177e4SLinus Torvalds /* called under bridge lock */ 4661da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 4671da177e4SLinus Torvalds { 4681da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 4691da177e4SLinus Torvalds } 4701da177e4SLinus Torvalds 4712594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 4722594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 4732594e906SNikolay Aleksandrov { 4742594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 4752594e906SNikolay Aleksandrov } 4762594e906SNikolay Aleksandrov 4772594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 4782594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 4792594e906SNikolay Aleksandrov { 4802594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 4812594e906SNikolay Aleksandrov } 4822594e906SNikolay Aleksandrov 4836be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 4842594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 4852594e906SNikolay Aleksandrov { 4862594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 4872594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 4882594e906SNikolay Aleksandrov return true; 4892594e906SNikolay Aleksandrov else 4902594e906SNikolay Aleksandrov return false; 4912594e906SNikolay Aleksandrov } 4922594e906SNikolay Aleksandrov 4932594e906SNikolay Aleksandrov return true; 4942594e906SNikolay Aleksandrov } 4952594e906SNikolay Aleksandrov 496ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 497ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 498ae75767eSNikolay Aleksandrov { 499ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 500ae75767eSNikolay Aleksandrov } 501ae75767eSNikolay Aleksandrov 502a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 503a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 504a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 505a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 506a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 507a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 508a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 509a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 510ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 511ae75767eSNikolay Aleksandrov 5121da177e4SLinus Torvalds /* br_device.c */ 513348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 514348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 515348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 516cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 51791d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 51891d2c34aSHerbert Xu struct sk_buff *skb) 51991d2c34aSHerbert Xu { 52091d2c34aSHerbert Xu struct netpoll *np = p->np; 52191d2c34aSHerbert Xu 52291d2c34aSHerbert Xu if (np) 52391d2c34aSHerbert Xu netpoll_send_skb(np, skb); 52491d2c34aSHerbert Xu } 52591d2c34aSHerbert Xu 526a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 527348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 52891d2c34aSHerbert Xu #else 5299f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 53091d2c34aSHerbert Xu struct sk_buff *skb) 53191d2c34aSHerbert Xu { 53291d2c34aSHerbert Xu } 53391d2c34aSHerbert Xu 534a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 53591d2c34aSHerbert Xu { 53691d2c34aSHerbert Xu return 0; 53791d2c34aSHerbert Xu } 53891d2c34aSHerbert Xu 53991d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 54091d2c34aSHerbert Xu { 54191d2c34aSHerbert Xu } 542cfb478daSstephen hemminger #endif 5431da177e4SLinus Torvalds 5441da177e4SLinus Torvalds /* br_fdb.c */ 545348662a1SJoe Perches int br_fdb_init(void); 546348662a1SJoe Perches void br_fdb_fini(void); 547eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 548eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 549348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 550424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 551424bb9c9SToshiaki Makita const struct net_bridge_port *p, 552424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 553348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 554348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 555f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 556348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 5571ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 558bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 559bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 560bfd0aeacSNikolay Aleksandrov __u16 vid); 561348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 562348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 563348662a1SJoe Perches unsigned long off); 564348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 565348662a1SJoe Perches const unsigned char *addr, u16 vid); 566348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 567a5642ab4SToshiaki Makita const unsigned char *addr, u16 vid, bool added_by_user); 56877162022SJohn Fastabend 569348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 570f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 571348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 57287b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 57387b0984eSPetr Machata struct netlink_ext_ack *extack); 574348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 575d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 57647674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 57747674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 57847674562SRoopa Prabhu struct netlink_ext_ack *extack); 5798db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 5808db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 5813aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 582161d82deSPetr Machata const unsigned char *addr, u16 vid, 583161d82deSPetr Machata bool swdev_notify); 5843aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 585161d82deSPetr Machata const unsigned char *addr, u16 vid, 586161d82deSPetr Machata bool swdev_notify); 5879fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 588e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 5891da177e4SLinus Torvalds 5901da177e4SLinus Torvalds /* br_forward.c */ 5918addd5e7SNikolay Aleksandrov enum br_pkt_type { 5928addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 5938addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 5948addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 5958addd5e7SNikolay Aleksandrov }; 5960c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 597b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 59837b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 5990c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 60037b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 6018addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 6021da177e4SLinus Torvalds 6037d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 6047d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 6057d850abdSNikolay Aleksandrov const struct sk_buff *skb) 6067d850abdSNikolay Aleksandrov { 6077d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 6087d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 6097d850abdSNikolay Aleksandrov } 6107d850abdSNikolay Aleksandrov 6111da177e4SLinus Torvalds /* br_if.c */ 612faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 613348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 614348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 615ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 616ca752be0SDavid Ahern struct netlink_ext_ack *extack); 617348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 618804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 619348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 620c8f44affSMichał Mirosław netdev_features_t features); 621e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 6222796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 6232756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 6241da177e4SLinus Torvalds 6251da177e4SLinus Torvalds /* br_input.c */ 6260c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 627348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 6281da177e4SLinus Torvalds 629859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 630859828c0SJiri Pirko { 631859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 632859828c0SJiri Pirko } 633859828c0SJiri Pirko 6344d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 6354d4fd361SPetr Machata { 6364d4fd361SPetr Machata return rcu_dereference_rtnl(dev->rx_handler) == br_handle_frame; 6374d4fd361SPetr Machata } 6384d4fd361SPetr Machata 639859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 640859828c0SJiri Pirko { 641859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 642859828c0SJiri Pirko } 643859828c0SJiri Pirko 6444d4fd361SPetr Machata static inline struct net_bridge_port * 6454d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 6464d4fd361SPetr Machata { 6474d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 6484d4fd361SPetr Machata } 6494d4fd361SPetr Machata 6501da177e4SLinus Torvalds /* br_ioctl.c */ 651348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 652348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 653348662a1SJoe Perches void __user *arg); 6541da177e4SLinus Torvalds 655eb1d1641SHerbert Xu /* br_multicast.c */ 656eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 657348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 658fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 659348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 660eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 6611080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 662348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 663348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 664348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 665348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 666348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 667348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 668e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 66937b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 67037b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 671348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 672348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 673348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 674348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 675348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 6765e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 677aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 678aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 679aa2ae3e7SNikolay Aleksandrov #endif 680348662a1SJoe Perches struct net_bridge_mdb_entry * 68119e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 682348662a1SJoe Perches struct net_bridge_mdb_entry * 68319e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 684348662a1SJoe Perches struct net_bridge_port_group * 685348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 686762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 6876db6f0eaSFelix Fietkau unsigned char flags, const unsigned char *src); 68819e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 68919e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 69045ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 69145ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 692949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 693949f1e39SSatish Ashok int type); 6941080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 695a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 6961080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 697b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 6981080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 6991080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 7001080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 70119e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 70219e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 70385b35269SSridhar Samudrala 704cfd56754SCong Wang #define mlock_dereference(X, br) \ 705cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 706cfd56754SCong Wang 70785b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 70885b35269SSridhar Samudrala { 70985b35269SSridhar Samudrala return br->multicast_router == 2 || 71085b35269SSridhar Samudrala (br->multicast_router == 1 && 71185b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 71285b35269SSridhar Samudrala } 713b00589afSLinus Lüssing 714cc0fdd80SLinus Lüssing static inline bool 715cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 7160888d5f3Sdaniel struct bridge_mcast_other_query *querier, 7170888d5f3Sdaniel const bool is_ipv6) 718b00589afSLinus Lüssing { 7190888d5f3Sdaniel bool own_querier_enabled; 7200888d5f3Sdaniel 721675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 722675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 7230888d5f3Sdaniel own_querier_enabled = false; 7240888d5f3Sdaniel else 7250888d5f3Sdaniel own_querier_enabled = true; 7260888d5f3Sdaniel } else { 7270888d5f3Sdaniel own_querier_enabled = false; 7280888d5f3Sdaniel } 7290888d5f3Sdaniel 730cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 7310888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 732cc0fdd80SLinus Lüssing } 733cc0fdd80SLinus Lüssing 734cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 735cc0fdd80SLinus Lüssing struct ethhdr *eth) 736cc0fdd80SLinus Lüssing { 737cc0fdd80SLinus Lüssing switch (eth->h_proto) { 738cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 7390888d5f3Sdaniel return __br_multicast_querier_exists(br, 7400888d5f3Sdaniel &br->ip4_other_query, false); 741cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 742cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 7430888d5f3Sdaniel return __br_multicast_querier_exists(br, 7440888d5f3Sdaniel &br->ip6_other_query, true); 745cc0fdd80SLinus Lüssing #endif 746cc0fdd80SLinus Lüssing default: 747cc0fdd80SLinus Lüssing return false; 748cc0fdd80SLinus Lüssing } 749b00589afSLinus Lüssing } 7501080ab95SNikolay Aleksandrov 7511080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 7521080ab95SNikolay Aleksandrov { 7531080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 7541080ab95SNikolay Aleksandrov } 755eb1d1641SHerbert Xu #else 756eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 757eb1d1641SHerbert Xu struct net_bridge_port *port, 75806499098SVlad Yasevich struct sk_buff *skb, 75906499098SVlad Yasevich u16 vid) 760eb1d1641SHerbert Xu { 761eb1d1641SHerbert Xu return 0; 762eb1d1641SHerbert Xu } 763eb1d1641SHerbert Xu 764eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 765fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 766eb1d1641SHerbert Xu { 767eb1d1641SHerbert Xu return NULL; 768eb1d1641SHerbert Xu } 769eb1d1641SHerbert Xu 7701080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 771eb1d1641SHerbert Xu { 7721080ab95SNikolay Aleksandrov return 0; 773eb1d1641SHerbert Xu } 774eb1d1641SHerbert Xu 775eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 776eb1d1641SHerbert Xu { 777eb1d1641SHerbert Xu } 778eb1d1641SHerbert Xu 779eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 780eb1d1641SHerbert Xu { 781eb1d1641SHerbert Xu } 782eb1d1641SHerbert Xu 783eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 784eb1d1641SHerbert Xu { 785eb1d1641SHerbert Xu } 786eb1d1641SHerbert Xu 787eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 788eb1d1641SHerbert Xu { 789eb1d1641SHerbert Xu } 790eb1d1641SHerbert Xu 791eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 792eb1d1641SHerbert Xu { 793eb1d1641SHerbert Xu } 794eb1d1641SHerbert Xu 795eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 796eb1d1641SHerbert Xu { 797eb1d1641SHerbert Xu } 7985cb5e947SHerbert Xu 799a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 800a7ce45a7SNikolay Aleksandrov { 801a7ce45a7SNikolay Aleksandrov } 802a7ce45a7SNikolay Aleksandrov 80337b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 80437b090e6SNikolay Aleksandrov struct sk_buff *skb, 80537b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 8065cb5e947SHerbert Xu { 8075cb5e947SHerbert Xu } 8085cb5e947SHerbert Xu 809eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 810eb1d1641SHerbert Xu { 81103aaa9e2SGustavo A. R. Silva return false; 812eb1d1641SHerbert Xu } 81337b090e6SNikolay Aleksandrov 814cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 815cc0fdd80SLinus Lüssing struct ethhdr *eth) 816b00589afSLinus Lüssing { 817b00589afSLinus Lüssing return false; 818b00589afSLinus Lüssing } 81937b090e6SNikolay Aleksandrov 820fdb184d1SRami Rosen static inline void br_mdb_init(void) 821fdb184d1SRami Rosen { 822fdb184d1SRami Rosen } 82337b090e6SNikolay Aleksandrov 824fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 825fdb184d1SRami Rosen { 826fdb184d1SRami Rosen } 8271080ab95SNikolay Aleksandrov 82819e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 82919e3a9c9SNikolay Aleksandrov { 83019e3a9c9SNikolay Aleksandrov return 0; 83119e3a9c9SNikolay Aleksandrov } 83219e3a9c9SNikolay Aleksandrov 83319e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 83419e3a9c9SNikolay Aleksandrov { 83519e3a9c9SNikolay Aleksandrov } 83619e3a9c9SNikolay Aleksandrov 8371080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 8381080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 839a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 840a65056ecSNikolay Aleksandrov u8 type, u8 dir) 8411080ab95SNikolay Aleksandrov { 8421080ab95SNikolay Aleksandrov } 8431080ab95SNikolay Aleksandrov 8441080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 8451080ab95SNikolay Aleksandrov { 8461080ab95SNikolay Aleksandrov return 0; 8471080ab95SNikolay Aleksandrov } 8481080ab95SNikolay Aleksandrov 849b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 850b6fe0440SIdo Schimmel { 851b6fe0440SIdo Schimmel } 852b6fe0440SIdo Schimmel 8531080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 8541080ab95SNikolay Aleksandrov { 8551080ab95SNikolay Aleksandrov return 0; 8561080ab95SNikolay Aleksandrov } 85785b35269SSridhar Samudrala #endif 858eb1d1641SHerbert Xu 859243a2e63SVlad Yasevich /* br_vlan.c */ 860243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 86177751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 86277751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 8632594e906SNikolay Aleksandrov u16 *vid); 86477751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 86585f46c6bSVlad Yasevich const struct sk_buff *skb); 866e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 867348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 86811538d03SRoopa Prabhu const struct net_bridge_port *port, 8692594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 87078851988SVlad Yasevich struct sk_buff *skb); 871f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 872169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 873348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 874348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 8752594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 876204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 877a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 878348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 879d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 880204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 8816dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 8829163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 8835be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 88496a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 885169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 886169327d5SPetr Machata struct netlink_ext_ack *extack); 887f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 888169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 889348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 890348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 891169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 8922594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 893a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 894a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 8959c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 8969c0ec2e7SMike Manning void br_vlan_bridge_event(struct net_device *dev, unsigned long event, 8979c0ec2e7SMike Manning void *ptr); 898a37b85c9SVlad Yasevich 8992594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 900a37b85c9SVlad Yasevich const struct net_bridge *br) 901a37b85c9SVlad Yasevich { 902907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 903a37b85c9SVlad Yasevich } 904a37b85c9SVlad Yasevich 9052594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 906a37b85c9SVlad Yasevich const struct net_bridge_port *p) 907a37b85c9SVlad Yasevich { 908907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 909907b1e6eSNikolay Aleksandrov } 910907b1e6eSNikolay Aleksandrov 911907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 912907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 913907b1e6eSNikolay Aleksandrov { 914907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 915907b1e6eSNikolay Aleksandrov } 916907b1e6eSNikolay Aleksandrov 917907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 918907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 919907b1e6eSNikolay Aleksandrov { 920907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 921a37b85c9SVlad Yasevich } 922a37b85c9SVlad Yasevich 923a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 924a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 925a37b85c9SVlad Yasevich */ 926a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 927a37b85c9SVlad Yasevich { 928a37b85c9SVlad Yasevich int err = 0; 929a37b85c9SVlad Yasevich 9302594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 9315978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 9322594e906SNikolay Aleksandrov } else { 933a37b85c9SVlad Yasevich *vid = 0; 934a37b85c9SVlad Yasevich err = -EINVAL; 935a37b85c9SVlad Yasevich } 936a37b85c9SVlad Yasevich 937a37b85c9SVlad Yasevich return err; 938a37b85c9SVlad Yasevich } 93978851988SVlad Yasevich 94077751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 94178851988SVlad Yasevich { 94277751ee8SNikolay Aleksandrov if (!vg) 9435be5a2dfSVlad Yasevich return 0; 9445be5a2dfSVlad Yasevich 94578851988SVlad Yasevich smp_rmb(); 94677751ee8SNikolay Aleksandrov return vg->pvid; 94778851988SVlad Yasevich } 94878851988SVlad Yasevich 949243a2e63SVlad Yasevich #else 95077751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 95177751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 9522594e906SNikolay Aleksandrov struct sk_buff *skb, 9532594e906SNikolay Aleksandrov u16 *vid) 9542594e906SNikolay Aleksandrov { 9552594e906SNikolay Aleksandrov return true; 9562594e906SNikolay Aleksandrov } 9572594e906SNikolay Aleksandrov 9582594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 95985f46c6bSVlad Yasevich const struct sk_buff *skb) 96085f46c6bSVlad Yasevich { 96185f46c6bSVlad Yasevich return true; 96285f46c6bSVlad Yasevich } 96385f46c6bSVlad Yasevich 964e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 965e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 966e0d7968aSToshiaki Makita { 967e0d7968aSToshiaki Makita return true; 968e0d7968aSToshiaki Makita } 969e0d7968aSToshiaki Makita 97078851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 97111538d03SRoopa Prabhu const struct net_bridge_port *port, 9722594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 97378851988SVlad Yasevich struct sk_buff *skb) 97478851988SVlad Yasevich { 97578851988SVlad Yasevich return skb; 97678851988SVlad Yasevich } 97778851988SVlad Yasevich 978f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 979169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 980243a2e63SVlad Yasevich { 981f418af63SNikolay Aleksandrov *changed = false; 982243a2e63SVlad Yasevich return -EOPNOTSUPP; 983243a2e63SVlad Yasevich } 984243a2e63SVlad Yasevich 985243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 986243a2e63SVlad Yasevich { 987243a2e63SVlad Yasevich return -EOPNOTSUPP; 988243a2e63SVlad Yasevich } 989243a2e63SVlad Yasevich 990243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 991243a2e63SVlad Yasevich { 992243a2e63SVlad Yasevich } 993243a2e63SVlad Yasevich 994204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 995204177f3SToshiaki Makita { 996204177f3SToshiaki Makita } 997204177f3SToshiaki Makita 9985be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 9998580e211SToshiaki Makita { 10005be5a2dfSVlad Yasevich return 0; 10018580e211SToshiaki Makita } 10028580e211SToshiaki Makita 1003f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1004169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1005243a2e63SVlad Yasevich { 1006f418af63SNikolay Aleksandrov *changed = false; 1007243a2e63SVlad Yasevich return -EOPNOTSUPP; 1008243a2e63SVlad Yasevich } 1009243a2e63SVlad Yasevich 1010243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1011243a2e63SVlad Yasevich { 1012243a2e63SVlad Yasevich return -EOPNOTSUPP; 1013243a2e63SVlad Yasevich } 1014243a2e63SVlad Yasevich 1015243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1016243a2e63SVlad Yasevich { 1017243a2e63SVlad Yasevich } 1018243a2e63SVlad Yasevich 10192594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 10202594e906SNikolay Aleksandrov u16 vid) 1021a37b85c9SVlad Yasevich { 1022a37b85c9SVlad Yasevich return NULL; 1023a37b85c9SVlad Yasevich } 1024bc9a25d2SVlad Yasevich 1025169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1026169327d5SPetr Machata struct netlink_ext_ack *extack) 10275be5a2dfSVlad Yasevich { 10285be5a2dfSVlad Yasevich return 0; 10295be5a2dfSVlad Yasevich } 10305be5a2dfSVlad Yasevich 103178851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1032a37b85c9SVlad Yasevich { 1033a37b85c9SVlad Yasevich return 0; 1034a37b85c9SVlad Yasevich } 10352594e906SNikolay Aleksandrov 103677751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 103778851988SVlad Yasevich { 10383df6bf45SVlad Yasevich return 0; 103978851988SVlad Yasevich } 10402796d0c6SVlad Yasevich 1041a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1042a7854037SNikolay Aleksandrov unsigned long val) 1043a7854037SNikolay Aleksandrov { 1044a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1045a7854037SNikolay Aleksandrov } 10462594e906SNikolay Aleksandrov 10472594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 10482594e906SNikolay Aleksandrov u32 filter_mask) 10492594e906SNikolay Aleksandrov { 10502594e906SNikolay Aleksandrov return 0; 10512594e906SNikolay Aleksandrov } 10522594e906SNikolay Aleksandrov 10532594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 10542594e906SNikolay Aleksandrov const struct net_bridge *br) 10552594e906SNikolay Aleksandrov { 10562594e906SNikolay Aleksandrov return NULL; 10572594e906SNikolay Aleksandrov } 10582594e906SNikolay Aleksandrov 10592594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 10602594e906SNikolay Aleksandrov const struct net_bridge_port *p) 10612594e906SNikolay Aleksandrov { 10622594e906SNikolay Aleksandrov return NULL; 10632594e906SNikolay Aleksandrov } 1064907b1e6eSNikolay Aleksandrov 1065907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1066907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1067907b1e6eSNikolay Aleksandrov { 1068907b1e6eSNikolay Aleksandrov return NULL; 1069907b1e6eSNikolay Aleksandrov } 1070907b1e6eSNikolay Aleksandrov 1071907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1072907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1073907b1e6eSNikolay Aleksandrov { 1074907b1e6eSNikolay Aleksandrov return NULL; 1075907b1e6eSNikolay Aleksandrov } 1076a60c0903SNikolay Aleksandrov 1077a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1078a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1079a60c0903SNikolay Aleksandrov { 1080a60c0903SNikolay Aleksandrov } 10819c0ec2e7SMike Manning 10829c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 10839c0ec2e7SMike Manning unsigned long event) 10849c0ec2e7SMike Manning { 10859c0ec2e7SMike Manning } 10869c0ec2e7SMike Manning 10879c0ec2e7SMike Manning static inline void br_vlan_bridge_event(struct net_device *dev, 10889c0ec2e7SMike Manning unsigned long event, void *ptr) 10899c0ec2e7SMike Manning { 10909c0ec2e7SMike Manning } 1091243a2e63SVlad Yasevich #endif 1092243a2e63SVlad Yasevich 10931a4ba64dSPablo Neira Ayuso struct nf_br_ops { 10941a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 10951a4ba64dSPablo Neira Ayuso }; 10961a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 10971a4ba64dSPablo Neira Ayuso 10981da177e4SLinus Torvalds /* br_netfilter.c */ 109934666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 110034666d46SPablo Neira Ayuso int br_nf_core_init(void); 110134666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1102348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1103c0909713SStephen Hemminger #else 110434666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 110534666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 11064adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1107c0909713SStephen Hemminger #endif 11081da177e4SLinus Torvalds 11091da177e4SLinus Torvalds /* br_stp.c */ 1110775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1111348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1112348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1113348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 11141da177e4SLinus Torvalds 1115348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1116348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1117348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1118348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 111982dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 11209e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 112114f98f25Sstephen hemminger 112214f98f25Sstephen hemminger 11231da177e4SLinus Torvalds /* br_stp_if.c */ 1124348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1125348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1126348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 1127348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1128348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1129348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1130348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1131348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1132348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1133348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1134348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 11351da177e4SLinus Torvalds 11361da177e4SLinus Torvalds /* br_stp_bpdu.c */ 11377c85fbf0SPatrick McHardy struct stp_proto; 1138348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 11397c85fbf0SPatrick McHardy struct net_device *dev); 11401da177e4SLinus Torvalds 11411da177e4SLinus Torvalds /* br_stp_timer.c */ 1142348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1143348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1144348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 11451da177e4SLinus Torvalds 11461da177e4SLinus Torvalds /* br.c */ 1147e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1148da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1149da678292SMichał Mirosław #endif 11501da177e4SLinus Torvalds 115111dc1f36SStephen Hemminger /* br_netlink.c */ 1152149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1153348662a1SJoe Perches int br_netlink_init(void); 1154348662a1SJoe Perches void br_netlink_fini(void); 115592899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 115692899063SNikolay Aleksandrov const struct net_bridge_port *port); 11572fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 11582fd527b7SPetr Machata struct netlink_ext_ack *extack); 1159add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1160348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 116146c264daSNicolas Dichtel u32 filter_mask, int nlflags); 116211dc1f36SStephen Hemminger 11631da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 11641da177e4SLinus Torvalds /* br_sysfs_if.c */ 116552cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1166348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1167348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 11681da177e4SLinus Torvalds 11691da177e4SLinus Torvalds /* br_sysfs_br.c */ 1170348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1171348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 11721da177e4SLinus Torvalds 11731da177e4SLinus Torvalds #else 11741da177e4SLinus Torvalds 11750cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 11760cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 11770cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 11780cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 11791da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 11801da177e4SLinus Torvalds 11816bc506b4SIdo Schimmel /* br_switchdev.c */ 11826bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 11836bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 11846bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 11856bc506b4SIdo Schimmel struct sk_buff *skb); 11866bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 11876bc506b4SIdo Schimmel const struct sk_buff *skb); 11883922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 11893922285dSArkadi Sharshevsky unsigned long flags, 11903922285dSArkadi Sharshevsky unsigned long mask); 11916b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 11926b26b51bSArkadi Sharshevsky int type); 1193169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1194169327d5SPetr Machata struct netlink_ext_ack *extack); 1195d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1196f1c2eddfSIdo Schimmel 1197f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1198f1c2eddfSIdo Schimmel { 1199f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1200f1c2eddfSIdo Schimmel } 12016bc506b4SIdo Schimmel #else 12026bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 12036bc506b4SIdo Schimmel { 12046bc506b4SIdo Schimmel return 0; 12056bc506b4SIdo Schimmel } 12066bc506b4SIdo Schimmel 12076bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 12086bc506b4SIdo Schimmel struct sk_buff *skb) 12096bc506b4SIdo Schimmel { 12106bc506b4SIdo Schimmel } 12116bc506b4SIdo Schimmel 12126bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 12136bc506b4SIdo Schimmel const struct sk_buff *skb) 12146bc506b4SIdo Schimmel { 12156bc506b4SIdo Schimmel return true; 12166bc506b4SIdo Schimmel } 12173922285dSArkadi Sharshevsky 12183922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 12193922285dSArkadi Sharshevsky unsigned long flags, 12203922285dSArkadi Sharshevsky unsigned long mask) 12213922285dSArkadi Sharshevsky { 12223922285dSArkadi Sharshevsky return 0; 12233922285dSArkadi Sharshevsky } 12246b26b51bSArkadi Sharshevsky 1225d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1226169327d5SPetr Machata u16 vid, u16 flags, 1227169327d5SPetr Machata struct netlink_ext_ack *extack) 1228d66e4348SPetr Machata { 1229d66e4348SPetr Machata return -EOPNOTSUPP; 1230d66e4348SPetr Machata } 1231d66e4348SPetr Machata 1232d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1233d66e4348SPetr Machata { 1234d66e4348SPetr Machata return -EOPNOTSUPP; 1235d66e4348SPetr Machata } 1236d66e4348SPetr Machata 12376b26b51bSArkadi Sharshevsky static inline void 12386b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 12396b26b51bSArkadi Sharshevsky { 12406b26b51bSArkadi Sharshevsky } 1241f1c2eddfSIdo Schimmel 1242f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1243f1c2eddfSIdo Schimmel { 1244f1c2eddfSIdo Schimmel } 12456bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 12466bc506b4SIdo Schimmel 1247057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1248821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1249057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1250057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1251ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1252ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1253ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 12541da177e4SLinus Torvalds #endif 1255