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 5131cbc39bSNikolay Aleksandrov #define BR_FDB_NOTIFY_SETTABLE_BITS (FDB_NOTIFY_BIT | FDB_NOTIFY_INACTIVE_BIT) 5231cbc39bSNikolay Aleksandrov 531da177e4SLinus Torvalds typedef struct bridge_id bridge_id; 541da177e4SLinus Torvalds typedef struct mac_addr mac_addr; 551da177e4SLinus Torvalds typedef __u16 port_id; 561da177e4SLinus Torvalds 571c1cb6d0SNikolay Aleksandrov struct bridge_id { 581da177e4SLinus Torvalds unsigned char prio[2]; 59e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 601da177e4SLinus Torvalds }; 611da177e4SLinus Torvalds 621c1cb6d0SNikolay Aleksandrov struct mac_addr { 63e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 641da177e4SLinus Torvalds }; 651da177e4SLinus Torvalds 66cc0fdd80SLinus Lüssing #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 67cc0fdd80SLinus Lüssing /* our own querier */ 6890010b36SLinus Lüssing struct bridge_mcast_own_query { 69cc0fdd80SLinus Lüssing struct timer_list timer; 70cc0fdd80SLinus Lüssing u32 startup_sent; 71cc0fdd80SLinus Lüssing }; 72cc0fdd80SLinus Lüssing 73cc0fdd80SLinus Lüssing /* other querier */ 7490010b36SLinus Lüssing struct bridge_mcast_other_query { 75cc0fdd80SLinus Lüssing struct timer_list timer; 76cc0fdd80SLinus Lüssing unsigned long delay_time; 77cc0fdd80SLinus Lüssing }; 78dc4eb53aSLinus Lüssing 79dc4eb53aSLinus Lüssing /* selected querier */ 80dc4eb53aSLinus Lüssing struct bridge_mcast_querier { 81dc4eb53aSLinus Lüssing struct br_ip addr; 822cd41431SLinus Lüssing struct net_bridge_port __rcu *port; 83dc4eb53aSLinus Lüssing }; 841080ab95SNikolay Aleksandrov 851080ab95SNikolay Aleksandrov /* IGMP/MLD statistics */ 861080ab95SNikolay Aleksandrov struct bridge_mcast_stats { 871080ab95SNikolay Aleksandrov struct br_mcast_stats mstats; 881080ab95SNikolay Aleksandrov struct u64_stats_sync syncp; 891080ab95SNikolay Aleksandrov }; 90cc0fdd80SLinus Lüssing #endif 91cc0fdd80SLinus Lüssing 926dada9b1SNikolay Aleksandrov struct br_vlan_stats { 936dada9b1SNikolay Aleksandrov u64 rx_bytes; 946dada9b1SNikolay Aleksandrov u64 rx_packets; 956dada9b1SNikolay Aleksandrov u64 tx_bytes; 966dada9b1SNikolay Aleksandrov u64 tx_packets; 976dada9b1SNikolay Aleksandrov struct u64_stats_sync syncp; 986dada9b1SNikolay Aleksandrov }; 996dada9b1SNikolay Aleksandrov 100efa5356bSRoopa Prabhu struct br_tunnel_info { 101efa5356bSRoopa Prabhu __be64 tunnel_id; 102efa5356bSRoopa Prabhu struct metadata_dst *tunnel_dst; 103efa5356bSRoopa Prabhu }; 104efa5356bSRoopa Prabhu 1059d332e69SNikolay Aleksandrov /* private vlan flags */ 1069d332e69SNikolay Aleksandrov enum { 1079d332e69SNikolay Aleksandrov BR_VLFLAG_PER_PORT_STATS = BIT(0), 10827973793SIdo Schimmel BR_VLFLAG_ADDED_BY_SWITCHDEV = BIT(1), 1099d332e69SNikolay Aleksandrov }; 1109d332e69SNikolay Aleksandrov 1112594e906SNikolay Aleksandrov /** 1122594e906SNikolay Aleksandrov * struct net_bridge_vlan - per-vlan entry 1132594e906SNikolay Aleksandrov * 1142594e906SNikolay Aleksandrov * @vnode: rhashtable member 1152594e906SNikolay Aleksandrov * @vid: VLAN id 1162594e906SNikolay Aleksandrov * @flags: bridge vlan flags 1179d332e69SNikolay Aleksandrov * @priv_flags: private (in-kernel) bridge vlan flags 118a580c76dSNikolay Aleksandrov * @state: STP state (e.g. blocking, learning, forwarding) 1196dada9b1SNikolay Aleksandrov * @stats: per-cpu VLAN statistics 1202594e906SNikolay Aleksandrov * @br: if MASTER flag set, this points to a bridge struct 1212594e906SNikolay Aleksandrov * @port: if MASTER flag unset, this points to a port struct 1222594e906SNikolay Aleksandrov * @refcnt: if MASTER flag set, this is bumped for each port referencing it 1232594e906SNikolay Aleksandrov * @brvlan: if MASTER flag unset, this points to the global per-VLAN context 1242594e906SNikolay Aleksandrov * for this VLAN entry 1252594e906SNikolay Aleksandrov * @vlist: sorted list of VLAN entries 1262594e906SNikolay Aleksandrov * @rcu: used for entry destruction 1272594e906SNikolay Aleksandrov * 1282594e906SNikolay Aleksandrov * This structure is shared between the global per-VLAN entries contained in 1292594e906SNikolay Aleksandrov * the bridge rhashtable and the local per-port per-VLAN entries contained in 1302594e906SNikolay Aleksandrov * the port's rhashtable. The union entries should be interpreted depending on 1312594e906SNikolay Aleksandrov * the entry flags that are set. 1322594e906SNikolay Aleksandrov */ 1332594e906SNikolay Aleksandrov struct net_bridge_vlan { 1342594e906SNikolay Aleksandrov struct rhash_head vnode; 135efa5356bSRoopa Prabhu struct rhash_head tnode; 1362594e906SNikolay Aleksandrov u16 vid; 1372594e906SNikolay Aleksandrov u16 flags; 1389d332e69SNikolay Aleksandrov u16 priv_flags; 139a580c76dSNikolay Aleksandrov u8 state; 1406dada9b1SNikolay Aleksandrov struct br_vlan_stats __percpu *stats; 141243a2e63SVlad Yasevich union { 142243a2e63SVlad Yasevich struct net_bridge *br; 1432594e906SNikolay Aleksandrov struct net_bridge_port *port; 1442594e906SNikolay Aleksandrov }; 1452594e906SNikolay Aleksandrov union { 14625127759SReshetova, Elena refcount_t refcnt; 1472594e906SNikolay Aleksandrov struct net_bridge_vlan *brvlan; 1482594e906SNikolay Aleksandrov }; 149efa5356bSRoopa Prabhu 150efa5356bSRoopa Prabhu struct br_tunnel_info tinfo; 151efa5356bSRoopa Prabhu 1522594e906SNikolay Aleksandrov struct list_head vlist; 1532594e906SNikolay Aleksandrov 154243a2e63SVlad Yasevich struct rcu_head rcu; 1552594e906SNikolay Aleksandrov }; 1562594e906SNikolay Aleksandrov 1572594e906SNikolay Aleksandrov /** 1582594e906SNikolay Aleksandrov * struct net_bridge_vlan_group 1592594e906SNikolay Aleksandrov * 1602594e906SNikolay Aleksandrov * @vlan_hash: VLAN entry rhashtable 1612594e906SNikolay Aleksandrov * @vlan_list: sorted VLAN entry list 1622594e906SNikolay Aleksandrov * @num_vlans: number of total VLAN entries 16377751ee8SNikolay Aleksandrov * @pvid: PVID VLAN id 164a580c76dSNikolay Aleksandrov * @pvid_state: PVID's STP state (e.g. forwarding, learning, blocking) 1652594e906SNikolay Aleksandrov * 1662594e906SNikolay Aleksandrov * IMPORTANT: Be careful when checking if there're VLAN entries using list 1672594e906SNikolay Aleksandrov * primitives because the bridge can have entries in its list which 1682594e906SNikolay Aleksandrov * are just for global context but not for filtering, i.e. they have 1692594e906SNikolay Aleksandrov * the master flag set but not the brentry flag. If you have to check 1702594e906SNikolay Aleksandrov * if there're "real" entries in the bridge please test @num_vlans 1712594e906SNikolay Aleksandrov */ 1722594e906SNikolay Aleksandrov struct net_bridge_vlan_group { 1732594e906SNikolay Aleksandrov struct rhashtable vlan_hash; 174efa5356bSRoopa Prabhu struct rhashtable tunnel_hash; 1752594e906SNikolay Aleksandrov struct list_head vlan_list; 1766cbdceebSVlad Yasevich u16 num_vlans; 17777751ee8SNikolay Aleksandrov u16 pvid; 178a580c76dSNikolay Aleksandrov u8 pvid_state; 179243a2e63SVlad Yasevich }; 180243a2e63SVlad Yasevich 1816869c3b0SNikolay Aleksandrov /* bridge fdb flags */ 1826869c3b0SNikolay Aleksandrov enum { 1836869c3b0SNikolay Aleksandrov BR_FDB_LOCAL, 18429e63fffSNikolay Aleksandrov BR_FDB_STATIC, 185e0458d9aSNikolay Aleksandrov BR_FDB_STICKY, 186ac3ca6afSNikolay Aleksandrov BR_FDB_ADDED_BY_USER, 187b5cd9f7cSNikolay Aleksandrov BR_FDB_ADDED_BY_EXT_LEARN, 188d38c6e3dSNikolay Aleksandrov BR_FDB_OFFLOADED, 18931cbc39bSNikolay Aleksandrov BR_FDB_NOTIFY, 19031cbc39bSNikolay Aleksandrov BR_FDB_NOTIFY_INACTIVE 1916869c3b0SNikolay Aleksandrov }; 1926869c3b0SNikolay Aleksandrov 193eb793583SNikolay Aleksandrov struct net_bridge_fdb_key { 194eb793583SNikolay Aleksandrov mac_addr addr; 195eb793583SNikolay Aleksandrov u16 vlan_id; 196eb793583SNikolay Aleksandrov }; 197eb793583SNikolay Aleksandrov 1981214628cSNikolay Aleksandrov struct net_bridge_fdb_entry { 199eb793583SNikolay Aleksandrov struct rhash_head rhnode; 2001da177e4SLinus Torvalds struct net_bridge_port *dst; 2011da177e4SLinus Torvalds 202eb793583SNikolay Aleksandrov struct net_bridge_fdb_key key; 203eb793583SNikolay Aleksandrov struct hlist_node fdb_node; 2046869c3b0SNikolay Aleksandrov unsigned long flags; 2051214628cSNikolay Aleksandrov 2061214628cSNikolay Aleksandrov /* write-heavy members should not affect lookups */ 2071214628cSNikolay Aleksandrov unsigned long updated ____cacheline_aligned_in_smp; 2081214628cSNikolay Aleksandrov unsigned long used; 2091214628cSNikolay Aleksandrov 210b22fbf22SNikolay Aleksandrov struct rcu_head rcu; 2111da177e4SLinus Torvalds }; 2121da177e4SLinus Torvalds 2139d06b6d8SElad Raz #define MDB_PG_FLAGS_PERMANENT BIT(0) 2149d06b6d8SElad Raz #define MDB_PG_FLAGS_OFFLOAD BIT(1) 2153247b272SNikolay Aleksandrov #define MDB_PG_FLAGS_FAST_LEAVE BIT(2) 2169d06b6d8SElad Raz 217eb1d1641SHerbert Xu struct net_bridge_port_group { 218eb1d1641SHerbert Xu struct net_bridge_port *port; 219e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 220eb1d1641SHerbert Xu struct hlist_node mglist; 221eb1d1641SHerbert Xu struct rcu_head rcu; 222eb1d1641SHerbert Xu struct timer_list timer; 2238ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 224206e7323SThomas Martitz unsigned char eth_addr[ETH_ALEN] __aligned(2); 2259d06b6d8SElad Raz unsigned char flags; 226eb1d1641SHerbert Xu }; 227eb1d1641SHerbert Xu 2281c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_entry { 22919e3a9c9SNikolay Aleksandrov struct rhash_head rhnode; 230eb1d1641SHerbert Xu struct net_bridge *br; 231e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 232eb1d1641SHerbert Xu struct rcu_head rcu; 233eb1d1641SHerbert Xu struct timer_list timer; 2348ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 235ff0fd34eSAndrew Lunn bool host_joined; 23619e3a9c9SNikolay Aleksandrov struct hlist_node mdb_node; 237eb1d1641SHerbert Xu }; 238eb1d1641SHerbert Xu 2391f90c7f3SNikolay Aleksandrov struct net_bridge_port { 2401da177e4SLinus Torvalds struct net_bridge *br; 2411da177e4SLinus Torvalds struct net_device *dev; 2421da177e4SLinus Torvalds struct list_head list; 2431da177e4SLinus Torvalds 2441f90c7f3SNikolay Aleksandrov unsigned long flags; 2451f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 2461f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 2471f90c7f3SNikolay Aleksandrov #endif 2482756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 2491f90c7f3SNikolay Aleksandrov 2501da177e4SLinus Torvalds /* STP */ 2511da177e4SLinus Torvalds u8 priority; 2521da177e4SLinus Torvalds u8 state; 2531da177e4SLinus Torvalds u16 port_no; 2541da177e4SLinus Torvalds unsigned char topology_change_ack; 2551da177e4SLinus Torvalds unsigned char config_pending; 2561da177e4SLinus Torvalds port_id port_id; 2571da177e4SLinus Torvalds port_id designated_port; 2581da177e4SLinus Torvalds bridge_id designated_root; 2591da177e4SLinus Torvalds bridge_id designated_bridge; 2601da177e4SLinus Torvalds u32 path_cost; 2611da177e4SLinus Torvalds u32 designated_cost; 2620c03150eSstephen hemminger unsigned long designated_age; 2631da177e4SLinus Torvalds 2641da177e4SLinus Torvalds struct timer_list forward_delay_timer; 2651da177e4SLinus Torvalds struct timer_list hold_timer; 2661da177e4SLinus Torvalds struct timer_list message_age_timer; 2671da177e4SLinus Torvalds struct kobject kobj; 2681da177e4SLinus Torvalds struct rcu_head rcu; 2693982d3d2SFischer, Anna 270eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 27190010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 272cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 27390010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 274cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 275eb1d1641SHerbert Xu unsigned char multicast_router; 2761080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 277eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 278eb1d1641SHerbert Xu struct hlist_head mglist; 279eb1d1641SHerbert Xu struct hlist_node rlist; 280eb1d1641SHerbert Xu #endif 281e0f43752SSimon Arlott 282e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 283e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 284e0f43752SSimon Arlott #endif 28591d2c34aSHerbert Xu 28691d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 28791d2c34aSHerbert Xu struct netpoll *np; 28891d2c34aSHerbert Xu #endif 2896bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 2906bc506b4SIdo Schimmel int offload_fwd_mark; 2916bc506b4SIdo Schimmel #endif 2925af48b59SNikolay Aleksandrov u16 group_fwd_mask; 2932756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 294de179966SVivien Didelot 295de179966SVivien Didelot struct bridge_stp_xstats stp_xstats; 2961da177e4SLinus Torvalds }; 2971da177e4SLinus Torvalds 298705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 299705e0deaSTyler Hicks 300e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 301f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 302e028e4b8SVlad Yasevich 303b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 304b5ed54e9Sstephen hemminger { 305716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 306b5ed54e9Sstephen hemminger } 307b5ed54e9Sstephen hemminger 3081fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 309b5ed54e9Sstephen hemminger { 31035f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 311ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 312b5ed54e9Sstephen hemminger } 313b5ed54e9Sstephen hemminger 3140baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 3150baa10ffSArkadi Sharshevsky { 31635f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 3170baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3180baa10ffSArkadi Sharshevsky } 3190baa10ffSArkadi Sharshevsky 320ae75767eSNikolay Aleksandrov enum net_bridge_opts { 321ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 322ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 3238df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 3248df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 3258df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 326be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 32713cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 328675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 329675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 330675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 331675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 332c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 3333341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 3349163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 33570e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 3369c0ec2e7SMike Manning BROPT_VLAN_BRIDGE_BINDING, 337ae75767eSNikolay Aleksandrov }; 338ae75767eSNikolay Aleksandrov 3391f90c7f3SNikolay Aleksandrov struct net_bridge { 3401da177e4SLinus Torvalds spinlock_t lock; 3411f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 3421da177e4SLinus Torvalds struct list_head port_list; 3431da177e4SLinus Torvalds struct net_device *dev; 3448f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 345ae75767eSNikolay Aleksandrov unsigned long options; 3461f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3471f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3481f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3491f90c7f3SNikolay Aleksandrov u16 default_pvid; 3501f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3511f90c7f3SNikolay Aleksandrov #endif 3521f90c7f3SNikolay Aleksandrov 353eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 35434666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 355efb6de9bSBernhard Thaler union { 3564adf0af6SSimon Wunderlich struct rtable fake_rtable; 357efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 358efb6de9bSBernhard Thaler }; 3594adf0af6SSimon Wunderlich #endif 360515853ccSstephen hemminger u16 group_fwd_mask; 361f2808d22SToshiaki Makita u16 group_fwd_mask_required; 362515853ccSstephen hemminger 3631da177e4SLinus Torvalds /* STP */ 3641da177e4SLinus Torvalds bridge_id designated_root; 3651da177e4SLinus Torvalds bridge_id bridge_id; 3661f90c7f3SNikolay Aleksandrov unsigned char topology_change; 3671f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 3681f90c7f3SNikolay Aleksandrov u16 root_port; 3691da177e4SLinus Torvalds unsigned long max_age; 3701da177e4SLinus Torvalds unsigned long hello_time; 3711da177e4SLinus Torvalds unsigned long forward_delay; 3721da177e4SLinus Torvalds unsigned long ageing_time; 37334d8acd8SVivien Didelot unsigned long bridge_max_age; 3741da177e4SLinus Torvalds unsigned long bridge_hello_time; 3751da177e4SLinus Torvalds unsigned long bridge_forward_delay; 37634d8acd8SVivien Didelot unsigned long bridge_ageing_time; 37735750b0bSNikolay Aleksandrov u32 root_path_cost; 3781da177e4SLinus Torvalds 379fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 3809cde0708SStephen Hemminger 3819cde0708SStephen Hemminger enum { 3829cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 3839cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 3849cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 3859cde0708SStephen Hemminger } stp_enabled; 3869cde0708SStephen Hemminger 387eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 388eb1d1641SHerbert Xu 389eb1d1641SHerbert Xu u32 hash_max; 390eb1d1641SHerbert Xu 391eb1d1641SHerbert Xu u32 multicast_last_member_count; 392eb1d1641SHerbert Xu u32 multicast_startup_query_count; 393eb1d1641SHerbert Xu 3945e923585SNikolay Aleksandrov u8 multicast_igmp_version; 395675779adSNikolay Aleksandrov u8 multicast_router; 396675779adSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 397675779adSNikolay Aleksandrov u8 multicast_mld_version; 398675779adSNikolay Aleksandrov #endif 39935750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 400eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 401eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 402eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 403eb1d1641SHerbert Xu unsigned long multicast_query_interval; 404eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 405eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 406eb1d1641SHerbert Xu 40719e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 40819e3a9c9SNikolay Aleksandrov 40919e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 410eb1d1641SHerbert Xu struct hlist_head router_list; 411eb1d1641SHerbert Xu 412eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 41390010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 41490010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 415dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 4161080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 417cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 41890010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 41990010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 420dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 421cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 422eb1d1641SHerbert Xu #endif 423eb1d1641SHerbert Xu 4241da177e4SLinus Torvalds struct timer_list hello_timer; 4251da177e4SLinus Torvalds struct timer_list tcn_timer; 4261da177e4SLinus Torvalds struct timer_list topology_change_timer; 427f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 42843b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 429e028e4b8SVlad Yasevich u32 auto_cnt; 4306bc506b4SIdo Schimmel 4316bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4326bc506b4SIdo Schimmel int offload_fwd_mark; 4336bc506b4SIdo Schimmel #endif 434eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4354b8d7d4cSHoratiu Vultur 4364b8d7d4cSHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 4374b8d7d4cSHoratiu Vultur struct list_head __rcu mrp_list; 4384b8d7d4cSHoratiu Vultur #endif 4391da177e4SLinus Torvalds }; 4401da177e4SLinus Torvalds 44168b7c895SHerbert Xu struct br_input_skb_cb { 44268b7c895SHerbert Xu struct net_device *brdev; 44393fdd47eSHerbert Xu 4443c171f49SPablo Neira Ayuso u16 frag_max_size; 44532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 446f12064d1SFlorian Westphal u8 igmp; 447f12064d1SFlorian Westphal u8 mrouters_only:1; 44832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 449f12064d1SFlorian Westphal u8 proxyarp_replied:1; 450f12064d1SFlorian Westphal u8 src_port_isolated:1; 45120adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 452f12064d1SFlorian Westphal u8 vlan_filtered:1; 45320adfa1aSVlad Yasevich #endif 454223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 455223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 456223fd0adSFlorian Westphal #endif 4576bc506b4SIdo Schimmel 4586bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4596bc506b4SIdo Schimmel int offload_fwd_mark; 4606bc506b4SIdo Schimmel #endif 46168b7c895SHerbert Xu }; 46268b7c895SHerbert Xu 46368b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 46468b7c895SHerbert Xu 46532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 46632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 46732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 46832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 46932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 47032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 47128a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 47228a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 47328a16c97Sstephen hemminger 47428a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 47528a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 47628a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 47728a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 47828a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 47928a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 48028a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 48128a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 48228a16c97Sstephen hemminger 48328a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 48428a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 48528a16c97Sstephen hemminger 4861da177e4SLinus Torvalds /* called under bridge lock */ 4871da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 4881da177e4SLinus Torvalds { 4891da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 4901da177e4SLinus Torvalds } 4911da177e4SLinus Torvalds 4922594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 4932594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 4942594e906SNikolay Aleksandrov { 4952594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 4962594e906SNikolay Aleksandrov } 4972594e906SNikolay Aleksandrov 4982594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 4992594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 5002594e906SNikolay Aleksandrov { 5012594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 5022594e906SNikolay Aleksandrov } 5032594e906SNikolay Aleksandrov 5046be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 5052594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 5062594e906SNikolay Aleksandrov { 5072594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 5082594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 5092594e906SNikolay Aleksandrov return true; 5102594e906SNikolay Aleksandrov else 5112594e906SNikolay Aleksandrov return false; 5122594e906SNikolay Aleksandrov } 5132594e906SNikolay Aleksandrov 5142594e906SNikolay Aleksandrov return true; 5152594e906SNikolay Aleksandrov } 5162594e906SNikolay Aleksandrov 5175d1fcaf3SNikolay Aleksandrov static inline bool nbp_state_should_learn(const struct net_bridge_port *p) 5185d1fcaf3SNikolay Aleksandrov { 5195d1fcaf3SNikolay Aleksandrov return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; 5205d1fcaf3SNikolay Aleksandrov } 5215d1fcaf3SNikolay Aleksandrov 5228f4cc940SNikolay Aleksandrov static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack) 5235a46facbSNikolay Aleksandrov { 5248f4cc940SNikolay Aleksandrov bool ret = vid > 0 && vid < VLAN_VID_MASK; 5258f4cc940SNikolay Aleksandrov 5268f4cc940SNikolay Aleksandrov if (!ret) 5278f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid"); 5288f4cc940SNikolay Aleksandrov 5298f4cc940SNikolay Aleksandrov return ret; 5305a46facbSNikolay Aleksandrov } 5315a46facbSNikolay Aleksandrov 5325a46facbSNikolay Aleksandrov static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, 5338f4cc940SNikolay Aleksandrov const struct bridge_vlan_info *last, 5348f4cc940SNikolay Aleksandrov struct netlink_ext_ack *extack) 5355a46facbSNikolay Aleksandrov { 5365a46facbSNikolay Aleksandrov /* pvid flag is not allowed in ranges */ 5378f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_PVID) { 5388f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range"); 5395a46facbSNikolay Aleksandrov return false; 5408f4cc940SNikolay Aleksandrov } 5415a46facbSNikolay Aleksandrov 5425a46facbSNikolay Aleksandrov /* when cur is the range end, check if: 5435a46facbSNikolay Aleksandrov * - it has range start flag 5445a46facbSNikolay Aleksandrov * - range ids are invalid (end is equal to or before start) 5455a46facbSNikolay Aleksandrov */ 5465a46facbSNikolay Aleksandrov if (last) { 5478f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { 5488f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one"); 5495a46facbSNikolay Aleksandrov return false; 5508f4cc940SNikolay Aleksandrov } else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) { 5518f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing"); 5528f4cc940SNikolay Aleksandrov return false; 5538f4cc940SNikolay Aleksandrov } else if (cur->vid <= last->vid) { 5548f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); 5558f4cc940SNikolay Aleksandrov return false; 5568f4cc940SNikolay Aleksandrov } 5578f4cc940SNikolay Aleksandrov } 5588f4cc940SNikolay Aleksandrov 5598f4cc940SNikolay Aleksandrov /* check for required range flags */ 5608f4cc940SNikolay Aleksandrov if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 5618f4cc940SNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END))) { 5628f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing"); 5635a46facbSNikolay Aleksandrov return false; 5645a46facbSNikolay Aleksandrov } 5655a46facbSNikolay Aleksandrov 5665a46facbSNikolay Aleksandrov return true; 5675a46facbSNikolay Aleksandrov } 5685a46facbSNikolay Aleksandrov 569f545923bSNikolay Aleksandrov static inline int br_afspec_cmd_to_rtm(int cmd) 570f545923bSNikolay Aleksandrov { 571f545923bSNikolay Aleksandrov switch (cmd) { 572f545923bSNikolay Aleksandrov case RTM_SETLINK: 573f545923bSNikolay Aleksandrov return RTM_NEWVLAN; 574f545923bSNikolay Aleksandrov case RTM_DELLINK: 575f545923bSNikolay Aleksandrov return RTM_DELVLAN; 576f545923bSNikolay Aleksandrov } 577f545923bSNikolay Aleksandrov 578f545923bSNikolay Aleksandrov return 0; 579f545923bSNikolay Aleksandrov } 580f545923bSNikolay Aleksandrov 581ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 582ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 583ae75767eSNikolay Aleksandrov { 584ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 585ae75767eSNikolay Aleksandrov } 586ae75767eSNikolay Aleksandrov 587a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 588a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 589a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 590a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 591a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 592a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 593a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 594a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 595ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 596ae75767eSNikolay Aleksandrov 5971da177e4SLinus Torvalds /* br_device.c */ 598348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 599348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 600348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 601cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 60291d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 60391d2c34aSHerbert Xu struct sk_buff *skb) 60491d2c34aSHerbert Xu { 605f78ed220SEric Dumazet netpoll_send_skb(p->np, skb); 60691d2c34aSHerbert Xu } 60791d2c34aSHerbert Xu 608a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 609348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 61091d2c34aSHerbert Xu #else 6119f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 61291d2c34aSHerbert Xu struct sk_buff *skb) 61391d2c34aSHerbert Xu { 61491d2c34aSHerbert Xu } 61591d2c34aSHerbert Xu 616a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 61791d2c34aSHerbert Xu { 61891d2c34aSHerbert Xu return 0; 61991d2c34aSHerbert Xu } 62091d2c34aSHerbert Xu 62191d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 62291d2c34aSHerbert Xu { 62391d2c34aSHerbert Xu } 624cfb478daSstephen hemminger #endif 6251da177e4SLinus Torvalds 6261da177e4SLinus Torvalds /* br_fdb.c */ 627348662a1SJoe Perches int br_fdb_init(void); 628348662a1SJoe Perches void br_fdb_fini(void); 629eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 630eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 631348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 632424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 633424bb9c9SToshiaki Makita const struct net_bridge_port *p, 634424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 635348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 636348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 637f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 638348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 6391ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 640bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 641bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 642bfd0aeacSNikolay Aleksandrov __u16 vid); 643348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 644348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 645348662a1SJoe Perches unsigned long off); 646348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 647348662a1SJoe Perches const unsigned char *addr, u16 vid); 648348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 649be0c5677SNikolay Aleksandrov const unsigned char *addr, u16 vid, unsigned long flags); 65077162022SJohn Fastabend 651348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 652f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 653348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 65487b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 65587b0984eSPetr Machata struct netlink_ext_ack *extack); 656348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 657d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 65847674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 65947674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 66047674562SRoopa Prabhu struct netlink_ext_ack *extack); 6618db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 6628db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 6633aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 664161d82deSPetr Machata const unsigned char *addr, u16 vid, 665161d82deSPetr Machata bool swdev_notify); 6663aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 667161d82deSPetr Machata const unsigned char *addr, u16 vid, 668161d82deSPetr Machata bool swdev_notify); 6699fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 670e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 6711da177e4SLinus Torvalds 6721da177e4SLinus Torvalds /* br_forward.c */ 6738addd5e7SNikolay Aleksandrov enum br_pkt_type { 6748addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 6758addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 6768addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 6778addd5e7SNikolay Aleksandrov }; 6780c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 679b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 68037b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 6810c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 68237b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 6838addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 6841da177e4SLinus Torvalds 6857d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 6867d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 6877d850abdSNikolay Aleksandrov const struct sk_buff *skb) 6887d850abdSNikolay Aleksandrov { 6897d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 6907d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 6917d850abdSNikolay Aleksandrov } 6927d850abdSNikolay Aleksandrov 6931da177e4SLinus Torvalds /* br_if.c */ 694faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 695348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 696348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 697ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 698ca752be0SDavid Ahern struct netlink_ext_ack *extack); 699348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 700804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 701348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 702c8f44affSMichał Mirosław netdev_features_t features); 703e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 7042796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 7052756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 7061da177e4SLinus Torvalds 7071da177e4SLinus Torvalds /* br_input.c */ 7080c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 7099eb8eff0SVladimir Oltean rx_handler_func_t *br_get_rx_handler(const struct net_device *dev); 7101da177e4SLinus Torvalds 711859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 712859828c0SJiri Pirko { 7139eb8eff0SVladimir Oltean return rcu_dereference(dev->rx_handler) == br_get_rx_handler(dev); 714859828c0SJiri Pirko } 715859828c0SJiri Pirko 7164d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 7174d4fd361SPetr Machata { 7189eb8eff0SVladimir Oltean return rcu_dereference_rtnl(dev->rx_handler) == br_get_rx_handler(dev); 7194d4fd361SPetr Machata } 7204d4fd361SPetr Machata 721859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 722859828c0SJiri Pirko { 723859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 724859828c0SJiri Pirko } 725859828c0SJiri Pirko 7264d4fd361SPetr Machata static inline struct net_bridge_port * 7274d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 7284d4fd361SPetr Machata { 7294d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 7304d4fd361SPetr Machata } 7314d4fd361SPetr Machata 7321da177e4SLinus Torvalds /* br_ioctl.c */ 733348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 734348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 735348662a1SJoe Perches void __user *arg); 7361da177e4SLinus Torvalds 737eb1d1641SHerbert Xu /* br_multicast.c */ 738eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 739348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 740fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 741348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 742eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 7431080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 744348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 745348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 746348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 747348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 748348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 749348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 750e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 75137b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 75237b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 753348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 754348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 755348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 756348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 757348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 7585e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 759aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 760aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 761aa2ae3e7SNikolay Aleksandrov #endif 762348662a1SJoe Perches struct net_bridge_mdb_entry * 76319e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 764348662a1SJoe Perches struct net_bridge_mdb_entry * 76519e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 766348662a1SJoe Perches struct net_bridge_port_group * 767348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 768762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 7696db6f0eaSFelix Fietkau unsigned char flags, const unsigned char *src); 77019e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 77119e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 77245ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 77345ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 774949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 775949f1e39SSatish Ashok int type); 7761080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 777a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 7781080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 779b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 7801080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 7811080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 7821080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 78319e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 78419e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 7851bc844eeSNikolay Aleksandrov void br_multicast_host_join(struct net_bridge_mdb_entry *mp, bool notify); 7861bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 78785b35269SSridhar Samudrala 788cfd56754SCong Wang #define mlock_dereference(X, br) \ 789cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 790cfd56754SCong Wang 79185b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 79285b35269SSridhar Samudrala { 79385b35269SSridhar Samudrala return br->multicast_router == 2 || 79485b35269SSridhar Samudrala (br->multicast_router == 1 && 79585b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 79685b35269SSridhar Samudrala } 797b00589afSLinus Lüssing 798cc0fdd80SLinus Lüssing static inline bool 799cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 8000888d5f3Sdaniel struct bridge_mcast_other_query *querier, 8010888d5f3Sdaniel const bool is_ipv6) 802b00589afSLinus Lüssing { 8030888d5f3Sdaniel bool own_querier_enabled; 8040888d5f3Sdaniel 805675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 806675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 8070888d5f3Sdaniel own_querier_enabled = false; 8080888d5f3Sdaniel else 8090888d5f3Sdaniel own_querier_enabled = true; 8100888d5f3Sdaniel } else { 8110888d5f3Sdaniel own_querier_enabled = false; 8120888d5f3Sdaniel } 8130888d5f3Sdaniel 814cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 8150888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 816cc0fdd80SLinus Lüssing } 817cc0fdd80SLinus Lüssing 818cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 819cc0fdd80SLinus Lüssing struct ethhdr *eth) 820cc0fdd80SLinus Lüssing { 821cc0fdd80SLinus Lüssing switch (eth->h_proto) { 822cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 8230888d5f3Sdaniel return __br_multicast_querier_exists(br, 8240888d5f3Sdaniel &br->ip4_other_query, false); 825cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 826cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 8270888d5f3Sdaniel return __br_multicast_querier_exists(br, 8280888d5f3Sdaniel &br->ip6_other_query, true); 829cc0fdd80SLinus Lüssing #endif 830cc0fdd80SLinus Lüssing default: 831cc0fdd80SLinus Lüssing return false; 832cc0fdd80SLinus Lüssing } 833b00589afSLinus Lüssing } 8341080ab95SNikolay Aleksandrov 8351080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 8361080ab95SNikolay Aleksandrov { 8371080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 8381080ab95SNikolay Aleksandrov } 839eb1d1641SHerbert Xu #else 840eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 841eb1d1641SHerbert Xu struct net_bridge_port *port, 84206499098SVlad Yasevich struct sk_buff *skb, 84306499098SVlad Yasevich u16 vid) 844eb1d1641SHerbert Xu { 845eb1d1641SHerbert Xu return 0; 846eb1d1641SHerbert Xu } 847eb1d1641SHerbert Xu 848eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 849fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 850eb1d1641SHerbert Xu { 851eb1d1641SHerbert Xu return NULL; 852eb1d1641SHerbert Xu } 853eb1d1641SHerbert Xu 8541080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 855eb1d1641SHerbert Xu { 8561080ab95SNikolay Aleksandrov return 0; 857eb1d1641SHerbert Xu } 858eb1d1641SHerbert Xu 859eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 860eb1d1641SHerbert Xu { 861eb1d1641SHerbert Xu } 862eb1d1641SHerbert Xu 863eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 864eb1d1641SHerbert Xu { 865eb1d1641SHerbert Xu } 866eb1d1641SHerbert Xu 867eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 868eb1d1641SHerbert Xu { 869eb1d1641SHerbert Xu } 870eb1d1641SHerbert Xu 871eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 872eb1d1641SHerbert Xu { 873eb1d1641SHerbert Xu } 874eb1d1641SHerbert Xu 875eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 876eb1d1641SHerbert Xu { 877eb1d1641SHerbert Xu } 878eb1d1641SHerbert Xu 879eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 880eb1d1641SHerbert Xu { 881eb1d1641SHerbert Xu } 8825cb5e947SHerbert Xu 883a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 884a7ce45a7SNikolay Aleksandrov { 885a7ce45a7SNikolay Aleksandrov } 886a7ce45a7SNikolay Aleksandrov 88737b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 88837b090e6SNikolay Aleksandrov struct sk_buff *skb, 88937b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 8905cb5e947SHerbert Xu { 8915cb5e947SHerbert Xu } 8925cb5e947SHerbert Xu 893eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 894eb1d1641SHerbert Xu { 89503aaa9e2SGustavo A. R. Silva return false; 896eb1d1641SHerbert Xu } 89737b090e6SNikolay Aleksandrov 898cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 899cc0fdd80SLinus Lüssing struct ethhdr *eth) 900b00589afSLinus Lüssing { 901b00589afSLinus Lüssing return false; 902b00589afSLinus Lüssing } 90337b090e6SNikolay Aleksandrov 904fdb184d1SRami Rosen static inline void br_mdb_init(void) 905fdb184d1SRami Rosen { 906fdb184d1SRami Rosen } 90737b090e6SNikolay Aleksandrov 908fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 909fdb184d1SRami Rosen { 910fdb184d1SRami Rosen } 9111080ab95SNikolay Aleksandrov 91219e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 91319e3a9c9SNikolay Aleksandrov { 91419e3a9c9SNikolay Aleksandrov return 0; 91519e3a9c9SNikolay Aleksandrov } 91619e3a9c9SNikolay Aleksandrov 91719e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 91819e3a9c9SNikolay Aleksandrov { 91919e3a9c9SNikolay Aleksandrov } 92019e3a9c9SNikolay Aleksandrov 9211080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 9221080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 923a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 924a65056ecSNikolay Aleksandrov u8 type, u8 dir) 9251080ab95SNikolay Aleksandrov { 9261080ab95SNikolay Aleksandrov } 9271080ab95SNikolay Aleksandrov 9281080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 9291080ab95SNikolay Aleksandrov { 9301080ab95SNikolay Aleksandrov return 0; 9311080ab95SNikolay Aleksandrov } 9321080ab95SNikolay Aleksandrov 933b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 934b6fe0440SIdo Schimmel { 935b6fe0440SIdo Schimmel } 936b6fe0440SIdo Schimmel 9371080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 9381080ab95SNikolay Aleksandrov { 9391080ab95SNikolay Aleksandrov return 0; 9401080ab95SNikolay Aleksandrov } 94185b35269SSridhar Samudrala #endif 942eb1d1641SHerbert Xu 943243a2e63SVlad Yasevich /* br_vlan.c */ 944243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 94577751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 94677751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 947a580c76dSNikolay Aleksandrov u16 *vid, u8 *state); 94877751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 94985f46c6bSVlad Yasevich const struct sk_buff *skb); 950e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 951348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 95211538d03SRoopa Prabhu const struct net_bridge_port *port, 9532594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 95478851988SVlad Yasevich struct sk_buff *skb); 955f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 956169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 957348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 958348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 9592594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 960204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 961a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 962348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 963d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 964204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 9656dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 9669163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 9675be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 96896a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 969169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 970169327d5SPetr Machata struct netlink_ext_ack *extack); 971f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 972169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 973348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 974348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 975169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 9762594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 977a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 978a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 9799c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 980091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 9819c0ec2e7SMike Manning void *ptr); 9828dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void); 9838dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void); 984cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 985cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 986cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 987cf5bddb9SNikolay Aleksandrov int cmd); 988a5d29ae2SNikolay Aleksandrov bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 989a5d29ae2SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 990a37b85c9SVlad Yasevich 9912594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 992a37b85c9SVlad Yasevich const struct net_bridge *br) 993a37b85c9SVlad Yasevich { 994907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 995a37b85c9SVlad Yasevich } 996a37b85c9SVlad Yasevich 9972594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 998a37b85c9SVlad Yasevich const struct net_bridge_port *p) 999a37b85c9SVlad Yasevich { 1000907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 1001907b1e6eSNikolay Aleksandrov } 1002907b1e6eSNikolay Aleksandrov 1003907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1004907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1005907b1e6eSNikolay Aleksandrov { 1006907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 1007907b1e6eSNikolay Aleksandrov } 1008907b1e6eSNikolay Aleksandrov 1009907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1010907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1011907b1e6eSNikolay Aleksandrov { 1012907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 1013a37b85c9SVlad Yasevich } 1014a37b85c9SVlad Yasevich 1015a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 1016a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 1017a37b85c9SVlad Yasevich */ 1018a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 1019a37b85c9SVlad Yasevich { 1020a37b85c9SVlad Yasevich int err = 0; 1021a37b85c9SVlad Yasevich 10222594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 10235978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 10242594e906SNikolay Aleksandrov } else { 1025a37b85c9SVlad Yasevich *vid = 0; 1026a37b85c9SVlad Yasevich err = -EINVAL; 1027a37b85c9SVlad Yasevich } 1028a37b85c9SVlad Yasevich 1029a37b85c9SVlad Yasevich return err; 1030a37b85c9SVlad Yasevich } 103178851988SVlad Yasevich 103277751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 103378851988SVlad Yasevich { 103477751ee8SNikolay Aleksandrov if (!vg) 10355be5a2dfSVlad Yasevich return 0; 10365be5a2dfSVlad Yasevich 103778851988SVlad Yasevich smp_rmb(); 103877751ee8SNikolay Aleksandrov return vg->pvid; 103978851988SVlad Yasevich } 104078851988SVlad Yasevich 10418dcea187SNikolay Aleksandrov static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) 10428dcea187SNikolay Aleksandrov { 10438dcea187SNikolay Aleksandrov return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags; 10448dcea187SNikolay Aleksandrov } 1045243a2e63SVlad Yasevich #else 104677751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 104777751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 10482594e906SNikolay Aleksandrov struct sk_buff *skb, 1049a580c76dSNikolay Aleksandrov u16 *vid, u8 *state) 10502594e906SNikolay Aleksandrov { 10512594e906SNikolay Aleksandrov return true; 10522594e906SNikolay Aleksandrov } 10532594e906SNikolay Aleksandrov 10542594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 105585f46c6bSVlad Yasevich const struct sk_buff *skb) 105685f46c6bSVlad Yasevich { 105785f46c6bSVlad Yasevich return true; 105885f46c6bSVlad Yasevich } 105985f46c6bSVlad Yasevich 1060e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 1061e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 1062e0d7968aSToshiaki Makita { 1063e0d7968aSToshiaki Makita return true; 1064e0d7968aSToshiaki Makita } 1065e0d7968aSToshiaki Makita 106678851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 106711538d03SRoopa Prabhu const struct net_bridge_port *port, 10682594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 106978851988SVlad Yasevich struct sk_buff *skb) 107078851988SVlad Yasevich { 107178851988SVlad Yasevich return skb; 107278851988SVlad Yasevich } 107378851988SVlad Yasevich 1074f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1075169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1076243a2e63SVlad Yasevich { 1077f418af63SNikolay Aleksandrov *changed = false; 1078243a2e63SVlad Yasevich return -EOPNOTSUPP; 1079243a2e63SVlad Yasevich } 1080243a2e63SVlad Yasevich 1081243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 1082243a2e63SVlad Yasevich { 1083243a2e63SVlad Yasevich return -EOPNOTSUPP; 1084243a2e63SVlad Yasevich } 1085243a2e63SVlad Yasevich 1086243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1087243a2e63SVlad Yasevich { 1088243a2e63SVlad Yasevich } 1089243a2e63SVlad Yasevich 1090204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1091204177f3SToshiaki Makita { 1092204177f3SToshiaki Makita } 1093204177f3SToshiaki Makita 10945be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 10958580e211SToshiaki Makita { 10965be5a2dfSVlad Yasevich return 0; 10978580e211SToshiaki Makita } 10988580e211SToshiaki Makita 1099f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1100169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1101243a2e63SVlad Yasevich { 1102f418af63SNikolay Aleksandrov *changed = false; 1103243a2e63SVlad Yasevich return -EOPNOTSUPP; 1104243a2e63SVlad Yasevich } 1105243a2e63SVlad Yasevich 1106243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1107243a2e63SVlad Yasevich { 1108243a2e63SVlad Yasevich return -EOPNOTSUPP; 1109243a2e63SVlad Yasevich } 1110243a2e63SVlad Yasevich 1111243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1112243a2e63SVlad Yasevich { 1113243a2e63SVlad Yasevich } 1114243a2e63SVlad Yasevich 11152594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 11162594e906SNikolay Aleksandrov u16 vid) 1117a37b85c9SVlad Yasevich { 1118a37b85c9SVlad Yasevich return NULL; 1119a37b85c9SVlad Yasevich } 1120bc9a25d2SVlad Yasevich 1121169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1122169327d5SPetr Machata struct netlink_ext_ack *extack) 11235be5a2dfSVlad Yasevich { 11245be5a2dfSVlad Yasevich return 0; 11255be5a2dfSVlad Yasevich } 11265be5a2dfSVlad Yasevich 112778851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1128a37b85c9SVlad Yasevich { 1129a37b85c9SVlad Yasevich return 0; 1130a37b85c9SVlad Yasevich } 11312594e906SNikolay Aleksandrov 113277751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 113378851988SVlad Yasevich { 11343df6bf45SVlad Yasevich return 0; 113578851988SVlad Yasevich } 11362796d0c6SVlad Yasevich 1137a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1138a7854037SNikolay Aleksandrov unsigned long val) 1139a7854037SNikolay Aleksandrov { 1140a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1141a7854037SNikolay Aleksandrov } 11422594e906SNikolay Aleksandrov 11432594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 11442594e906SNikolay Aleksandrov u32 filter_mask) 11452594e906SNikolay Aleksandrov { 11462594e906SNikolay Aleksandrov return 0; 11472594e906SNikolay Aleksandrov } 11482594e906SNikolay Aleksandrov 11492594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 11502594e906SNikolay Aleksandrov const struct net_bridge *br) 11512594e906SNikolay Aleksandrov { 11522594e906SNikolay Aleksandrov return NULL; 11532594e906SNikolay Aleksandrov } 11542594e906SNikolay Aleksandrov 11552594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 11562594e906SNikolay Aleksandrov const struct net_bridge_port *p) 11572594e906SNikolay Aleksandrov { 11582594e906SNikolay Aleksandrov return NULL; 11592594e906SNikolay Aleksandrov } 1160907b1e6eSNikolay Aleksandrov 1161907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1162907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1163907b1e6eSNikolay Aleksandrov { 1164907b1e6eSNikolay Aleksandrov return NULL; 1165907b1e6eSNikolay Aleksandrov } 1166907b1e6eSNikolay Aleksandrov 1167907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1168907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1169907b1e6eSNikolay Aleksandrov { 1170907b1e6eSNikolay Aleksandrov return NULL; 1171907b1e6eSNikolay Aleksandrov } 1172a60c0903SNikolay Aleksandrov 1173a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1174a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1175a60c0903SNikolay Aleksandrov { 1176a60c0903SNikolay Aleksandrov } 11779c0ec2e7SMike Manning 11789c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 11799c0ec2e7SMike Manning unsigned long event) 11809c0ec2e7SMike Manning { 11819c0ec2e7SMike Manning } 11829c0ec2e7SMike Manning 1183091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 11849c0ec2e7SMike Manning unsigned long event, void *ptr) 11859c0ec2e7SMike Manning { 1186091adf9bSNikolay Aleksandrov return 0; 11879c0ec2e7SMike Manning } 11888dcea187SNikolay Aleksandrov 11898dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_init(void) 11908dcea187SNikolay Aleksandrov { 11918dcea187SNikolay Aleksandrov } 11928dcea187SNikolay Aleksandrov 11938dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_uninit(void) 11948dcea187SNikolay Aleksandrov { 11958dcea187SNikolay Aleksandrov } 1196cf5bddb9SNikolay Aleksandrov 1197cf5bddb9SNikolay Aleksandrov static inline void br_vlan_notify(const struct net_bridge *br, 1198cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1199cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1200cf5bddb9SNikolay Aleksandrov int cmd) 1201cf5bddb9SNikolay Aleksandrov { 1202cf5bddb9SNikolay Aleksandrov } 1203243a2e63SVlad Yasevich #endif 1204243a2e63SVlad Yasevich 12057a53e718SNikolay Aleksandrov /* br_vlan_options.c */ 12067a53e718SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 120799f7c5e0SNikolay Aleksandrov bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, 120899f7c5e0SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 12097a53e718SNikolay Aleksandrov bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v); 12107a53e718SNikolay Aleksandrov size_t br_vlan_opts_nl_size(void); 1211a5d29ae2SNikolay Aleksandrov int br_vlan_process_options(const struct net_bridge *br, 1212a5d29ae2SNikolay Aleksandrov const struct net_bridge_port *p, 1213a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_start, 1214a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_end, 1215a5d29ae2SNikolay Aleksandrov struct nlattr **tb, 1216a5d29ae2SNikolay Aleksandrov struct netlink_ext_ack *extack); 1217a580c76dSNikolay Aleksandrov 1218a580c76dSNikolay Aleksandrov /* vlan state manipulation helpers using *_ONCE to annotate lock-free access */ 1219a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v) 1220a580c76dSNikolay Aleksandrov { 1221a580c76dSNikolay Aleksandrov return READ_ONCE(v->state); 1222a580c76dSNikolay Aleksandrov } 1223a580c76dSNikolay Aleksandrov 1224a580c76dSNikolay Aleksandrov static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state) 1225a580c76dSNikolay Aleksandrov { 1226a580c76dSNikolay Aleksandrov WRITE_ONCE(v->state, state); 1227a580c76dSNikolay Aleksandrov } 1228a580c76dSNikolay Aleksandrov 1229a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg) 1230a580c76dSNikolay Aleksandrov { 1231a580c76dSNikolay Aleksandrov return READ_ONCE(vg->pvid_state); 1232a580c76dSNikolay Aleksandrov } 1233a580c76dSNikolay Aleksandrov 1234a580c76dSNikolay Aleksandrov static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg, 1235a580c76dSNikolay Aleksandrov u8 state) 1236a580c76dSNikolay Aleksandrov { 1237a580c76dSNikolay Aleksandrov WRITE_ONCE(vg->pvid_state, state); 1238a580c76dSNikolay Aleksandrov } 1239a580c76dSNikolay Aleksandrov 1240a580c76dSNikolay Aleksandrov /* learn_allow is true at ingress and false at egress */ 1241a580c76dSNikolay Aleksandrov static inline bool br_vlan_state_allowed(u8 state, bool learn_allow) 1242a580c76dSNikolay Aleksandrov { 1243a580c76dSNikolay Aleksandrov switch (state) { 1244a580c76dSNikolay Aleksandrov case BR_STATE_LEARNING: 1245a580c76dSNikolay Aleksandrov return learn_allow; 1246a580c76dSNikolay Aleksandrov case BR_STATE_FORWARDING: 1247a580c76dSNikolay Aleksandrov return true; 1248a580c76dSNikolay Aleksandrov default: 1249a580c76dSNikolay Aleksandrov return false; 1250a580c76dSNikolay Aleksandrov } 1251a580c76dSNikolay Aleksandrov } 12527a53e718SNikolay Aleksandrov #endif 12537a53e718SNikolay Aleksandrov 12541a4ba64dSPablo Neira Ayuso struct nf_br_ops { 12551a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 12561a4ba64dSPablo Neira Ayuso }; 12571a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 12581a4ba64dSPablo Neira Ayuso 12591da177e4SLinus Torvalds /* br_netfilter.c */ 126034666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 126134666d46SPablo Neira Ayuso int br_nf_core_init(void); 126234666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1263348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1264c0909713SStephen Hemminger #else 126534666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 126634666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 12674adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1268c0909713SStephen Hemminger #endif 12691da177e4SLinus Torvalds 12701da177e4SLinus Torvalds /* br_stp.c */ 1271775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1272348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1273348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1274348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 12751da177e4SLinus Torvalds 1276348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1277348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1278348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1279348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 128082dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 12819e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 128214f98f25Sstephen hemminger 128314f98f25Sstephen hemminger 12841da177e4SLinus Torvalds /* br_stp_if.c */ 1285348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1286348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1287419dba8aSHoratiu Vultur int br_stp_set_enabled(struct net_bridge *br, unsigned long val, 1288419dba8aSHoratiu Vultur struct netlink_ext_ack *extack); 1289348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1290348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1291348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1292348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1293348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1294348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1295348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1296348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 12971da177e4SLinus Torvalds 12981da177e4SLinus Torvalds /* br_stp_bpdu.c */ 12997c85fbf0SPatrick McHardy struct stp_proto; 1300348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 13017c85fbf0SPatrick McHardy struct net_device *dev); 13021da177e4SLinus Torvalds 13031da177e4SLinus Torvalds /* br_stp_timer.c */ 1304348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1305348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1306348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 13071da177e4SLinus Torvalds 13081da177e4SLinus Torvalds /* br.c */ 1309e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1310da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1311da678292SMichał Mirosław #endif 13121da177e4SLinus Torvalds 131365369933SHoratiu Vultur /* br_mrp.c */ 131465369933SHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 131565369933SHoratiu Vultur int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 131665369933SHoratiu Vultur struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 131765369933SHoratiu Vultur int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb); 131865369933SHoratiu Vultur bool br_mrp_enabled(struct net_bridge *br); 131965369933SHoratiu Vultur void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p); 1320df42ef22SHoratiu Vultur int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br); 132165369933SHoratiu Vultur #else 132265369933SHoratiu Vultur static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 132365369933SHoratiu Vultur struct nlattr *attr, int cmd, 132465369933SHoratiu Vultur struct netlink_ext_ack *extack) 132565369933SHoratiu Vultur { 132665369933SHoratiu Vultur return -EOPNOTSUPP; 132765369933SHoratiu Vultur } 132865369933SHoratiu Vultur 132965369933SHoratiu Vultur static inline int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb) 133065369933SHoratiu Vultur { 133165369933SHoratiu Vultur return 0; 133265369933SHoratiu Vultur } 133365369933SHoratiu Vultur 133465369933SHoratiu Vultur static inline bool br_mrp_enabled(struct net_bridge *br) 133565369933SHoratiu Vultur { 13368741e184SJason Yan return false; 133765369933SHoratiu Vultur } 133865369933SHoratiu Vultur 133965369933SHoratiu Vultur static inline void br_mrp_port_del(struct net_bridge *br, 134065369933SHoratiu Vultur struct net_bridge_port *p) 134165369933SHoratiu Vultur { 134265369933SHoratiu Vultur } 1343df42ef22SHoratiu Vultur 1344df42ef22SHoratiu Vultur static inline int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br) 1345df42ef22SHoratiu Vultur { 1346df42ef22SHoratiu Vultur return 0; 1347df42ef22SHoratiu Vultur } 1348df42ef22SHoratiu Vultur 134965369933SHoratiu Vultur #endif 135065369933SHoratiu Vultur 135111dc1f36SStephen Hemminger /* br_netlink.c */ 1352149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1353348662a1SJoe Perches int br_netlink_init(void); 1354348662a1SJoe Perches void br_netlink_fini(void); 135592899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 135692899063SNikolay Aleksandrov const struct net_bridge_port *port); 13572fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 13582fd527b7SPetr Machata struct netlink_ext_ack *extack); 1359add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1360348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 136146c264daSNicolas Dichtel u32 filter_mask, int nlflags); 1362f26b2965SNikolay Aleksandrov int br_process_vlan_info(struct net_bridge *br, 1363f26b2965SNikolay Aleksandrov struct net_bridge_port *p, int cmd, 1364f26b2965SNikolay Aleksandrov struct bridge_vlan_info *vinfo_curr, 1365f26b2965SNikolay Aleksandrov struct bridge_vlan_info **vinfo_last, 1366f26b2965SNikolay Aleksandrov bool *changed, 1367f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack); 136811dc1f36SStephen Hemminger 13691da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 13701da177e4SLinus Torvalds /* br_sysfs_if.c */ 137152cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1372348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1373348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 13741da177e4SLinus Torvalds 13751da177e4SLinus Torvalds /* br_sysfs_br.c */ 1376348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1377348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 13781da177e4SLinus Torvalds 13791da177e4SLinus Torvalds #else 13801da177e4SLinus Torvalds 13810cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 13820cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 13830cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 13840cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 13851da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 13861da177e4SLinus Torvalds 13876bc506b4SIdo Schimmel /* br_switchdev.c */ 13886bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 13896bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 13906bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 13916bc506b4SIdo Schimmel struct sk_buff *skb); 13926bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 13936bc506b4SIdo Schimmel const struct sk_buff *skb); 13943922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 13953922285dSArkadi Sharshevsky unsigned long flags, 13963922285dSArkadi Sharshevsky unsigned long mask); 13976b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 13986b26b51bSArkadi Sharshevsky int type); 1399169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1400169327d5SPetr Machata struct netlink_ext_ack *extack); 1401d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1402f1c2eddfSIdo Schimmel 1403f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1404f1c2eddfSIdo Schimmel { 1405f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1406f1c2eddfSIdo Schimmel } 14076bc506b4SIdo Schimmel #else 14086bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 14096bc506b4SIdo Schimmel { 14106bc506b4SIdo Schimmel return 0; 14116bc506b4SIdo Schimmel } 14126bc506b4SIdo Schimmel 14136bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 14146bc506b4SIdo Schimmel struct sk_buff *skb) 14156bc506b4SIdo Schimmel { 14166bc506b4SIdo Schimmel } 14176bc506b4SIdo Schimmel 14186bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 14196bc506b4SIdo Schimmel const struct sk_buff *skb) 14206bc506b4SIdo Schimmel { 14216bc506b4SIdo Schimmel return true; 14226bc506b4SIdo Schimmel } 14233922285dSArkadi Sharshevsky 14243922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 14253922285dSArkadi Sharshevsky unsigned long flags, 14263922285dSArkadi Sharshevsky unsigned long mask) 14273922285dSArkadi Sharshevsky { 14283922285dSArkadi Sharshevsky return 0; 14293922285dSArkadi Sharshevsky } 14306b26b51bSArkadi Sharshevsky 1431d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1432169327d5SPetr Machata u16 vid, u16 flags, 1433169327d5SPetr Machata struct netlink_ext_ack *extack) 1434d66e4348SPetr Machata { 1435d66e4348SPetr Machata return -EOPNOTSUPP; 1436d66e4348SPetr Machata } 1437d66e4348SPetr Machata 1438d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1439d66e4348SPetr Machata { 1440d66e4348SPetr Machata return -EOPNOTSUPP; 1441d66e4348SPetr Machata } 1442d66e4348SPetr Machata 14436b26b51bSArkadi Sharshevsky static inline void 14446b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 14456b26b51bSArkadi Sharshevsky { 14466b26b51bSArkadi Sharshevsky } 1447f1c2eddfSIdo Schimmel 1448f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1449f1c2eddfSIdo Schimmel { 1450f1c2eddfSIdo Schimmel } 14516bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 14526bc506b4SIdo Schimmel 1453057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1454821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1455057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1456057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1457ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1458ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1459ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 14601da177e4SLinus Torvalds #endif 1461