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) 2023247b272SNikolay Aleksandrov #define MDB_PG_FLAGS_FAST_LEAVE BIT(2) 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 288b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 289b5ed54e9Sstephen hemminger { 290716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 291b5ed54e9Sstephen hemminger } 292b5ed54e9Sstephen hemminger 2931fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 294b5ed54e9Sstephen hemminger { 29535f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 296ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 297b5ed54e9Sstephen hemminger } 298b5ed54e9Sstephen hemminger 2990baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 3000baa10ffSArkadi Sharshevsky { 30135f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 3020baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3030baa10ffSArkadi Sharshevsky } 3040baa10ffSArkadi Sharshevsky 305ae75767eSNikolay Aleksandrov enum net_bridge_opts { 306ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 307ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 3088df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 3098df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 3108df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 311be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 31213cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 313675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 314675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 315675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 316675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 317c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 3183341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 3199163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 32070e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 3219c0ec2e7SMike Manning BROPT_VLAN_BRIDGE_BINDING, 322ae75767eSNikolay Aleksandrov }; 323ae75767eSNikolay Aleksandrov 3241f90c7f3SNikolay Aleksandrov struct net_bridge { 3251da177e4SLinus Torvalds spinlock_t lock; 3261f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 3271da177e4SLinus Torvalds struct list_head port_list; 3281da177e4SLinus Torvalds struct net_device *dev; 3298f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 330ae75767eSNikolay Aleksandrov unsigned long options; 3311f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3321f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3331f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3341f90c7f3SNikolay Aleksandrov u16 default_pvid; 3351f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3361f90c7f3SNikolay Aleksandrov #endif 3371f90c7f3SNikolay Aleksandrov 338eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 33934666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 340efb6de9bSBernhard Thaler union { 3414adf0af6SSimon Wunderlich struct rtable fake_rtable; 342efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 343efb6de9bSBernhard Thaler }; 3444adf0af6SSimon Wunderlich #endif 345515853ccSstephen hemminger u16 group_fwd_mask; 346f2808d22SToshiaki Makita u16 group_fwd_mask_required; 347515853ccSstephen hemminger 3481da177e4SLinus Torvalds /* STP */ 3491da177e4SLinus Torvalds bridge_id designated_root; 3501da177e4SLinus Torvalds bridge_id bridge_id; 3511f90c7f3SNikolay Aleksandrov unsigned char topology_change; 3521f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 3531f90c7f3SNikolay Aleksandrov u16 root_port; 3541da177e4SLinus Torvalds unsigned long max_age; 3551da177e4SLinus Torvalds unsigned long hello_time; 3561da177e4SLinus Torvalds unsigned long forward_delay; 3571da177e4SLinus Torvalds unsigned long ageing_time; 35834d8acd8SVivien Didelot unsigned long bridge_max_age; 3591da177e4SLinus Torvalds unsigned long bridge_hello_time; 3601da177e4SLinus Torvalds unsigned long bridge_forward_delay; 36134d8acd8SVivien Didelot unsigned long bridge_ageing_time; 36235750b0bSNikolay Aleksandrov u32 root_path_cost; 3631da177e4SLinus Torvalds 364fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 3659cde0708SStephen Hemminger 3669cde0708SStephen Hemminger enum { 3679cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 3689cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 3699cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 3709cde0708SStephen Hemminger } stp_enabled; 3719cde0708SStephen Hemminger 372eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 373eb1d1641SHerbert Xu 374eb1d1641SHerbert Xu u32 hash_max; 375eb1d1641SHerbert Xu 376eb1d1641SHerbert Xu u32 multicast_last_member_count; 377eb1d1641SHerbert Xu u32 multicast_startup_query_count; 378eb1d1641SHerbert Xu 3795e923585SNikolay Aleksandrov u8 multicast_igmp_version; 380675779adSNikolay Aleksandrov u8 multicast_router; 381675779adSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 382675779adSNikolay Aleksandrov u8 multicast_mld_version; 383675779adSNikolay Aleksandrov #endif 38435750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 385eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 386eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 387eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 388eb1d1641SHerbert Xu unsigned long multicast_query_interval; 389eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 390eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 391eb1d1641SHerbert Xu 39219e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 39319e3a9c9SNikolay Aleksandrov 39419e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 395eb1d1641SHerbert Xu struct hlist_head router_list; 396eb1d1641SHerbert Xu 397eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 39890010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 39990010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 400dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 4011080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 402cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 40390010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 40490010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 405dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 406cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 407eb1d1641SHerbert Xu #endif 408eb1d1641SHerbert Xu 4091da177e4SLinus Torvalds struct timer_list hello_timer; 4101da177e4SLinus Torvalds struct timer_list tcn_timer; 4111da177e4SLinus Torvalds struct timer_list topology_change_timer; 412f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 41343b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 414e028e4b8SVlad Yasevich u32 auto_cnt; 4156bc506b4SIdo Schimmel 4166bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4176bc506b4SIdo Schimmel int offload_fwd_mark; 4186bc506b4SIdo Schimmel #endif 419eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4201da177e4SLinus Torvalds }; 4211da177e4SLinus Torvalds 42268b7c895SHerbert Xu struct br_input_skb_cb { 42368b7c895SHerbert Xu struct net_device *brdev; 42493fdd47eSHerbert Xu 4253c171f49SPablo Neira Ayuso u16 frag_max_size; 42632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 427f12064d1SFlorian Westphal u8 igmp; 428f12064d1SFlorian Westphal u8 mrouters_only:1; 42932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 430f12064d1SFlorian Westphal u8 proxyarp_replied:1; 431f12064d1SFlorian Westphal u8 src_port_isolated:1; 43220adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 433f12064d1SFlorian Westphal u8 vlan_filtered:1; 43420adfa1aSVlad Yasevich #endif 435223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 436223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 437223fd0adSFlorian Westphal #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, 57487b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 57587b0984eSPetr Machata struct netlink_ext_ack *extack); 576348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 577d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 57847674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 57947674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 58047674562SRoopa Prabhu struct netlink_ext_ack *extack); 5818db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 5828db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 5833aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 584161d82deSPetr Machata const unsigned char *addr, u16 vid, 585161d82deSPetr Machata bool swdev_notify); 5863aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 587161d82deSPetr Machata const unsigned char *addr, u16 vid, 588161d82deSPetr Machata bool swdev_notify); 5899fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 590e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 5911da177e4SLinus Torvalds 5921da177e4SLinus Torvalds /* br_forward.c */ 5938addd5e7SNikolay Aleksandrov enum br_pkt_type { 5948addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 5958addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 5968addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 5978addd5e7SNikolay Aleksandrov }; 5980c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 599b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 60037b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 6010c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 60237b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 6038addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 6041da177e4SLinus Torvalds 6057d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 6067d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 6077d850abdSNikolay Aleksandrov const struct sk_buff *skb) 6087d850abdSNikolay Aleksandrov { 6097d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 6107d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 6117d850abdSNikolay Aleksandrov } 6127d850abdSNikolay Aleksandrov 6131da177e4SLinus Torvalds /* br_if.c */ 614faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 615348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 616348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 617ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 618ca752be0SDavid Ahern struct netlink_ext_ack *extack); 619348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 620804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 621348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 622c8f44affSMichał Mirosław netdev_features_t features); 623e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 6242796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 6252756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 6261da177e4SLinus Torvalds 6271da177e4SLinus Torvalds /* br_input.c */ 6280c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 629348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 6301da177e4SLinus Torvalds 631859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 632859828c0SJiri Pirko { 633859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 634859828c0SJiri Pirko } 635859828c0SJiri Pirko 6364d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 6374d4fd361SPetr Machata { 6384d4fd361SPetr Machata return rcu_dereference_rtnl(dev->rx_handler) == br_handle_frame; 6394d4fd361SPetr Machata } 6404d4fd361SPetr Machata 641859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 642859828c0SJiri Pirko { 643859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 644859828c0SJiri Pirko } 645859828c0SJiri Pirko 6464d4fd361SPetr Machata static inline struct net_bridge_port * 6474d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 6484d4fd361SPetr Machata { 6494d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 6504d4fd361SPetr Machata } 6514d4fd361SPetr Machata 6521da177e4SLinus Torvalds /* br_ioctl.c */ 653348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 654348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 655348662a1SJoe Perches void __user *arg); 6561da177e4SLinus Torvalds 657eb1d1641SHerbert Xu /* br_multicast.c */ 658eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 659348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 660fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 661348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 662eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 6631080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 664348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 665348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 666348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 667348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 668348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 669348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 670e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 67137b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 67237b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 673348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 674348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 675348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 676348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 677348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 6785e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 679aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 680aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 681aa2ae3e7SNikolay Aleksandrov #endif 682348662a1SJoe Perches struct net_bridge_mdb_entry * 68319e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 684348662a1SJoe Perches struct net_bridge_mdb_entry * 68519e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 686348662a1SJoe Perches struct net_bridge_port_group * 687348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 688762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 6896db6f0eaSFelix Fietkau unsigned char flags, const unsigned char *src); 69019e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 69119e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 69245ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 69345ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 694949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 695949f1e39SSatish Ashok int type); 6961080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 697a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 6981080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 699b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 7001080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 7011080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 7021080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 70319e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 70419e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 7051bc844eeSNikolay Aleksandrov void br_multicast_host_join(struct net_bridge_mdb_entry *mp, bool notify); 7061bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 70785b35269SSridhar Samudrala 708cfd56754SCong Wang #define mlock_dereference(X, br) \ 709cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 710cfd56754SCong Wang 71185b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 71285b35269SSridhar Samudrala { 71385b35269SSridhar Samudrala return br->multicast_router == 2 || 71485b35269SSridhar Samudrala (br->multicast_router == 1 && 71585b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 71685b35269SSridhar Samudrala } 717b00589afSLinus Lüssing 718cc0fdd80SLinus Lüssing static inline bool 719cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 7200888d5f3Sdaniel struct bridge_mcast_other_query *querier, 7210888d5f3Sdaniel const bool is_ipv6) 722b00589afSLinus Lüssing { 7230888d5f3Sdaniel bool own_querier_enabled; 7240888d5f3Sdaniel 725675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 726675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 7270888d5f3Sdaniel own_querier_enabled = false; 7280888d5f3Sdaniel else 7290888d5f3Sdaniel own_querier_enabled = true; 7300888d5f3Sdaniel } else { 7310888d5f3Sdaniel own_querier_enabled = false; 7320888d5f3Sdaniel } 7330888d5f3Sdaniel 734cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 7350888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 736cc0fdd80SLinus Lüssing } 737cc0fdd80SLinus Lüssing 738cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 739cc0fdd80SLinus Lüssing struct ethhdr *eth) 740cc0fdd80SLinus Lüssing { 741cc0fdd80SLinus Lüssing switch (eth->h_proto) { 742cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 7430888d5f3Sdaniel return __br_multicast_querier_exists(br, 7440888d5f3Sdaniel &br->ip4_other_query, false); 745cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 746cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 7470888d5f3Sdaniel return __br_multicast_querier_exists(br, 7480888d5f3Sdaniel &br->ip6_other_query, true); 749cc0fdd80SLinus Lüssing #endif 750cc0fdd80SLinus Lüssing default: 751cc0fdd80SLinus Lüssing return false; 752cc0fdd80SLinus Lüssing } 753b00589afSLinus Lüssing } 7541080ab95SNikolay Aleksandrov 7551080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 7561080ab95SNikolay Aleksandrov { 7571080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 7581080ab95SNikolay Aleksandrov } 759eb1d1641SHerbert Xu #else 760eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 761eb1d1641SHerbert Xu struct net_bridge_port *port, 76206499098SVlad Yasevich struct sk_buff *skb, 76306499098SVlad Yasevich u16 vid) 764eb1d1641SHerbert Xu { 765eb1d1641SHerbert Xu return 0; 766eb1d1641SHerbert Xu } 767eb1d1641SHerbert Xu 768eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 769fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 770eb1d1641SHerbert Xu { 771eb1d1641SHerbert Xu return NULL; 772eb1d1641SHerbert Xu } 773eb1d1641SHerbert Xu 7741080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 775eb1d1641SHerbert Xu { 7761080ab95SNikolay Aleksandrov return 0; 777eb1d1641SHerbert Xu } 778eb1d1641SHerbert Xu 779eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 780eb1d1641SHerbert Xu { 781eb1d1641SHerbert Xu } 782eb1d1641SHerbert Xu 783eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 784eb1d1641SHerbert Xu { 785eb1d1641SHerbert Xu } 786eb1d1641SHerbert Xu 787eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 788eb1d1641SHerbert Xu { 789eb1d1641SHerbert Xu } 790eb1d1641SHerbert Xu 791eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 792eb1d1641SHerbert Xu { 793eb1d1641SHerbert Xu } 794eb1d1641SHerbert Xu 795eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 796eb1d1641SHerbert Xu { 797eb1d1641SHerbert Xu } 798eb1d1641SHerbert Xu 799eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 800eb1d1641SHerbert Xu { 801eb1d1641SHerbert Xu } 8025cb5e947SHerbert Xu 803a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 804a7ce45a7SNikolay Aleksandrov { 805a7ce45a7SNikolay Aleksandrov } 806a7ce45a7SNikolay Aleksandrov 80737b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 80837b090e6SNikolay Aleksandrov struct sk_buff *skb, 80937b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 8105cb5e947SHerbert Xu { 8115cb5e947SHerbert Xu } 8125cb5e947SHerbert Xu 813eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 814eb1d1641SHerbert Xu { 81503aaa9e2SGustavo A. R. Silva return false; 816eb1d1641SHerbert Xu } 81737b090e6SNikolay Aleksandrov 818cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 819cc0fdd80SLinus Lüssing struct ethhdr *eth) 820b00589afSLinus Lüssing { 821b00589afSLinus Lüssing return false; 822b00589afSLinus Lüssing } 82337b090e6SNikolay Aleksandrov 824fdb184d1SRami Rosen static inline void br_mdb_init(void) 825fdb184d1SRami Rosen { 826fdb184d1SRami Rosen } 82737b090e6SNikolay Aleksandrov 828fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 829fdb184d1SRami Rosen { 830fdb184d1SRami Rosen } 8311080ab95SNikolay Aleksandrov 83219e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 83319e3a9c9SNikolay Aleksandrov { 83419e3a9c9SNikolay Aleksandrov return 0; 83519e3a9c9SNikolay Aleksandrov } 83619e3a9c9SNikolay Aleksandrov 83719e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 83819e3a9c9SNikolay Aleksandrov { 83919e3a9c9SNikolay Aleksandrov } 84019e3a9c9SNikolay Aleksandrov 8411080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 8421080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 843a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 844a65056ecSNikolay Aleksandrov u8 type, u8 dir) 8451080ab95SNikolay Aleksandrov { 8461080ab95SNikolay Aleksandrov } 8471080ab95SNikolay Aleksandrov 8481080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 8491080ab95SNikolay Aleksandrov { 8501080ab95SNikolay Aleksandrov return 0; 8511080ab95SNikolay Aleksandrov } 8521080ab95SNikolay Aleksandrov 853b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 854b6fe0440SIdo Schimmel { 855b6fe0440SIdo Schimmel } 856b6fe0440SIdo Schimmel 8571080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 8581080ab95SNikolay Aleksandrov { 8591080ab95SNikolay Aleksandrov return 0; 8601080ab95SNikolay Aleksandrov } 86185b35269SSridhar Samudrala #endif 862eb1d1641SHerbert Xu 863243a2e63SVlad Yasevich /* br_vlan.c */ 864243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 86577751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 86677751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 8672594e906SNikolay Aleksandrov u16 *vid); 86877751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 86985f46c6bSVlad Yasevich const struct sk_buff *skb); 870e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 871348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 87211538d03SRoopa Prabhu const struct net_bridge_port *port, 8732594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 87478851988SVlad Yasevich struct sk_buff *skb); 875f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 876169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 877348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 878348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 8792594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 880204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 881a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 882348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 883d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 884204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 8856dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 8869163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 8875be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 88896a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 889169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 890169327d5SPetr Machata struct netlink_ext_ack *extack); 891f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 892169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 893348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 894348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 895169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 8962594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 897a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 898a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 8999c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 900091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 9019c0ec2e7SMike Manning void *ptr); 902a37b85c9SVlad Yasevich 9032594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 904a37b85c9SVlad Yasevich const struct net_bridge *br) 905a37b85c9SVlad Yasevich { 906907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 907a37b85c9SVlad Yasevich } 908a37b85c9SVlad Yasevich 9092594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 910a37b85c9SVlad Yasevich const struct net_bridge_port *p) 911a37b85c9SVlad Yasevich { 912907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 913907b1e6eSNikolay Aleksandrov } 914907b1e6eSNikolay Aleksandrov 915907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 916907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 917907b1e6eSNikolay Aleksandrov { 918907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 919907b1e6eSNikolay Aleksandrov } 920907b1e6eSNikolay Aleksandrov 921907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 922907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 923907b1e6eSNikolay Aleksandrov { 924907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 925a37b85c9SVlad Yasevich } 926a37b85c9SVlad Yasevich 927a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 928a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 929a37b85c9SVlad Yasevich */ 930a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 931a37b85c9SVlad Yasevich { 932a37b85c9SVlad Yasevich int err = 0; 933a37b85c9SVlad Yasevich 9342594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 9355978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 9362594e906SNikolay Aleksandrov } else { 937a37b85c9SVlad Yasevich *vid = 0; 938a37b85c9SVlad Yasevich err = -EINVAL; 939a37b85c9SVlad Yasevich } 940a37b85c9SVlad Yasevich 941a37b85c9SVlad Yasevich return err; 942a37b85c9SVlad Yasevich } 94378851988SVlad Yasevich 94477751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 94578851988SVlad Yasevich { 94677751ee8SNikolay Aleksandrov if (!vg) 9475be5a2dfSVlad Yasevich return 0; 9485be5a2dfSVlad Yasevich 94978851988SVlad Yasevich smp_rmb(); 95077751ee8SNikolay Aleksandrov return vg->pvid; 95178851988SVlad Yasevich } 95278851988SVlad Yasevich 953243a2e63SVlad Yasevich #else 95477751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 95577751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 9562594e906SNikolay Aleksandrov struct sk_buff *skb, 9572594e906SNikolay Aleksandrov u16 *vid) 9582594e906SNikolay Aleksandrov { 9592594e906SNikolay Aleksandrov return true; 9602594e906SNikolay Aleksandrov } 9612594e906SNikolay Aleksandrov 9622594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 96385f46c6bSVlad Yasevich const struct sk_buff *skb) 96485f46c6bSVlad Yasevich { 96585f46c6bSVlad Yasevich return true; 96685f46c6bSVlad Yasevich } 96785f46c6bSVlad Yasevich 968e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 969e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 970e0d7968aSToshiaki Makita { 971e0d7968aSToshiaki Makita return true; 972e0d7968aSToshiaki Makita } 973e0d7968aSToshiaki Makita 97478851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 97511538d03SRoopa Prabhu const struct net_bridge_port *port, 9762594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 97778851988SVlad Yasevich struct sk_buff *skb) 97878851988SVlad Yasevich { 97978851988SVlad Yasevich return skb; 98078851988SVlad Yasevich } 98178851988SVlad Yasevich 982f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 983169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 984243a2e63SVlad Yasevich { 985f418af63SNikolay Aleksandrov *changed = false; 986243a2e63SVlad Yasevich return -EOPNOTSUPP; 987243a2e63SVlad Yasevich } 988243a2e63SVlad Yasevich 989243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 990243a2e63SVlad Yasevich { 991243a2e63SVlad Yasevich return -EOPNOTSUPP; 992243a2e63SVlad Yasevich } 993243a2e63SVlad Yasevich 994243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 995243a2e63SVlad Yasevich { 996243a2e63SVlad Yasevich } 997243a2e63SVlad Yasevich 998204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 999204177f3SToshiaki Makita { 1000204177f3SToshiaki Makita } 1001204177f3SToshiaki Makita 10025be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 10038580e211SToshiaki Makita { 10045be5a2dfSVlad Yasevich return 0; 10058580e211SToshiaki Makita } 10068580e211SToshiaki Makita 1007f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1008169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1009243a2e63SVlad Yasevich { 1010f418af63SNikolay Aleksandrov *changed = false; 1011243a2e63SVlad Yasevich return -EOPNOTSUPP; 1012243a2e63SVlad Yasevich } 1013243a2e63SVlad Yasevich 1014243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1015243a2e63SVlad Yasevich { 1016243a2e63SVlad Yasevich return -EOPNOTSUPP; 1017243a2e63SVlad Yasevich } 1018243a2e63SVlad Yasevich 1019243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1020243a2e63SVlad Yasevich { 1021243a2e63SVlad Yasevich } 1022243a2e63SVlad Yasevich 10232594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 10242594e906SNikolay Aleksandrov u16 vid) 1025a37b85c9SVlad Yasevich { 1026a37b85c9SVlad Yasevich return NULL; 1027a37b85c9SVlad Yasevich } 1028bc9a25d2SVlad Yasevich 1029169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1030169327d5SPetr Machata struct netlink_ext_ack *extack) 10315be5a2dfSVlad Yasevich { 10325be5a2dfSVlad Yasevich return 0; 10335be5a2dfSVlad Yasevich } 10345be5a2dfSVlad Yasevich 103578851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1036a37b85c9SVlad Yasevich { 1037a37b85c9SVlad Yasevich return 0; 1038a37b85c9SVlad Yasevich } 10392594e906SNikolay Aleksandrov 104077751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 104178851988SVlad Yasevich { 10423df6bf45SVlad Yasevich return 0; 104378851988SVlad Yasevich } 10442796d0c6SVlad Yasevich 1045a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1046a7854037SNikolay Aleksandrov unsigned long val) 1047a7854037SNikolay Aleksandrov { 1048a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1049a7854037SNikolay Aleksandrov } 10502594e906SNikolay Aleksandrov 10512594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 10522594e906SNikolay Aleksandrov u32 filter_mask) 10532594e906SNikolay Aleksandrov { 10542594e906SNikolay Aleksandrov return 0; 10552594e906SNikolay Aleksandrov } 10562594e906SNikolay Aleksandrov 10572594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 10582594e906SNikolay Aleksandrov const struct net_bridge *br) 10592594e906SNikolay Aleksandrov { 10602594e906SNikolay Aleksandrov return NULL; 10612594e906SNikolay Aleksandrov } 10622594e906SNikolay Aleksandrov 10632594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 10642594e906SNikolay Aleksandrov const struct net_bridge_port *p) 10652594e906SNikolay Aleksandrov { 10662594e906SNikolay Aleksandrov return NULL; 10672594e906SNikolay Aleksandrov } 1068907b1e6eSNikolay Aleksandrov 1069907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1070907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1071907b1e6eSNikolay Aleksandrov { 1072907b1e6eSNikolay Aleksandrov return NULL; 1073907b1e6eSNikolay Aleksandrov } 1074907b1e6eSNikolay Aleksandrov 1075907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1076907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1077907b1e6eSNikolay Aleksandrov { 1078907b1e6eSNikolay Aleksandrov return NULL; 1079907b1e6eSNikolay Aleksandrov } 1080a60c0903SNikolay Aleksandrov 1081a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1082a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1083a60c0903SNikolay Aleksandrov { 1084a60c0903SNikolay Aleksandrov } 10859c0ec2e7SMike Manning 10869c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 10879c0ec2e7SMike Manning unsigned long event) 10889c0ec2e7SMike Manning { 10899c0ec2e7SMike Manning } 10909c0ec2e7SMike Manning 1091091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 10929c0ec2e7SMike Manning unsigned long event, void *ptr) 10939c0ec2e7SMike Manning { 1094091adf9bSNikolay Aleksandrov return 0; 10959c0ec2e7SMike Manning } 1096243a2e63SVlad Yasevich #endif 1097243a2e63SVlad Yasevich 10981a4ba64dSPablo Neira Ayuso struct nf_br_ops { 10991a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 11001a4ba64dSPablo Neira Ayuso }; 11011a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 11021a4ba64dSPablo Neira Ayuso 11031da177e4SLinus Torvalds /* br_netfilter.c */ 110434666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 110534666d46SPablo Neira Ayuso int br_nf_core_init(void); 110634666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1107348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1108c0909713SStephen Hemminger #else 110934666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 111034666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 11114adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1112c0909713SStephen Hemminger #endif 11131da177e4SLinus Torvalds 11141da177e4SLinus Torvalds /* br_stp.c */ 1115775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1116348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1117348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1118348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 11191da177e4SLinus Torvalds 1120348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1121348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1122348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1123348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 112482dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 11259e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 112614f98f25Sstephen hemminger 112714f98f25Sstephen hemminger 11281da177e4SLinus Torvalds /* br_stp_if.c */ 1129348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1130348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1131348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 1132348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1133348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1134348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1135348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1136348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1137348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1138348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1139348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 11401da177e4SLinus Torvalds 11411da177e4SLinus Torvalds /* br_stp_bpdu.c */ 11427c85fbf0SPatrick McHardy struct stp_proto; 1143348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 11447c85fbf0SPatrick McHardy struct net_device *dev); 11451da177e4SLinus Torvalds 11461da177e4SLinus Torvalds /* br_stp_timer.c */ 1147348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1148348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1149348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 11501da177e4SLinus Torvalds 11511da177e4SLinus Torvalds /* br.c */ 1152e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1153da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1154da678292SMichał Mirosław #endif 11551da177e4SLinus Torvalds 115611dc1f36SStephen Hemminger /* br_netlink.c */ 1157149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1158348662a1SJoe Perches int br_netlink_init(void); 1159348662a1SJoe Perches void br_netlink_fini(void); 116092899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 116192899063SNikolay Aleksandrov const struct net_bridge_port *port); 11622fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 11632fd527b7SPetr Machata struct netlink_ext_ack *extack); 1164add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1165348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 116646c264daSNicolas Dichtel u32 filter_mask, int nlflags); 116711dc1f36SStephen Hemminger 11681da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 11691da177e4SLinus Torvalds /* br_sysfs_if.c */ 117052cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1171348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1172348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 11731da177e4SLinus Torvalds 11741da177e4SLinus Torvalds /* br_sysfs_br.c */ 1175348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1176348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 11771da177e4SLinus Torvalds 11781da177e4SLinus Torvalds #else 11791da177e4SLinus Torvalds 11800cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 11810cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 11820cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 11830cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 11841da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 11851da177e4SLinus Torvalds 11866bc506b4SIdo Schimmel /* br_switchdev.c */ 11876bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 11886bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 11896bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 11906bc506b4SIdo Schimmel struct sk_buff *skb); 11916bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 11926bc506b4SIdo Schimmel const struct sk_buff *skb); 11933922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 11943922285dSArkadi Sharshevsky unsigned long flags, 11953922285dSArkadi Sharshevsky unsigned long mask); 11966b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 11976b26b51bSArkadi Sharshevsky int type); 1198169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1199169327d5SPetr Machata struct netlink_ext_ack *extack); 1200d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1201f1c2eddfSIdo Schimmel 1202f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1203f1c2eddfSIdo Schimmel { 1204f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1205f1c2eddfSIdo Schimmel } 12066bc506b4SIdo Schimmel #else 12076bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 12086bc506b4SIdo Schimmel { 12096bc506b4SIdo Schimmel return 0; 12106bc506b4SIdo Schimmel } 12116bc506b4SIdo Schimmel 12126bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 12136bc506b4SIdo Schimmel struct sk_buff *skb) 12146bc506b4SIdo Schimmel { 12156bc506b4SIdo Schimmel } 12166bc506b4SIdo Schimmel 12176bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 12186bc506b4SIdo Schimmel const struct sk_buff *skb) 12196bc506b4SIdo Schimmel { 12206bc506b4SIdo Schimmel return true; 12216bc506b4SIdo Schimmel } 12223922285dSArkadi Sharshevsky 12233922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 12243922285dSArkadi Sharshevsky unsigned long flags, 12253922285dSArkadi Sharshevsky unsigned long mask) 12263922285dSArkadi Sharshevsky { 12273922285dSArkadi Sharshevsky return 0; 12283922285dSArkadi Sharshevsky } 12296b26b51bSArkadi Sharshevsky 1230d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1231169327d5SPetr Machata u16 vid, u16 flags, 1232169327d5SPetr Machata struct netlink_ext_ack *extack) 1233d66e4348SPetr Machata { 1234d66e4348SPetr Machata return -EOPNOTSUPP; 1235d66e4348SPetr Machata } 1236d66e4348SPetr Machata 1237d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1238d66e4348SPetr Machata { 1239d66e4348SPetr Machata return -EOPNOTSUPP; 1240d66e4348SPetr Machata } 1241d66e4348SPetr Machata 12426b26b51bSArkadi Sharshevsky static inline void 12436b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 12446b26b51bSArkadi Sharshevsky { 12456b26b51bSArkadi Sharshevsky } 1246f1c2eddfSIdo Schimmel 1247f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1248f1c2eddfSIdo Schimmel { 1249f1c2eddfSIdo Schimmel } 12506bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 12516bc506b4SIdo Schimmel 1252057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1253821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1254057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1255057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1256ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1257ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1258ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 12591da177e4SLinus Torvalds #endif 1260