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; 2208ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 221206e7323SThomas Martitz unsigned char eth_addr[ETH_ALEN] __aligned(2); 2229d06b6d8SElad Raz unsigned char flags; 2236ec0d0eeSNikolay Aleksandrov 2246ec0d0eeSNikolay Aleksandrov struct timer_list timer; 2256ec0d0eeSNikolay Aleksandrov struct hlist_node mglist; 2266ec0d0eeSNikolay Aleksandrov 2276ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 228eb1d1641SHerbert Xu }; 229eb1d1641SHerbert Xu 2301c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_entry { 23119e3a9c9SNikolay Aleksandrov struct rhash_head rhnode; 232eb1d1641SHerbert Xu struct net_bridge *br; 233e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 2348ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 235ff0fd34eSAndrew Lunn bool host_joined; 2366ec0d0eeSNikolay Aleksandrov 2376ec0d0eeSNikolay Aleksandrov struct timer_list timer; 23819e3a9c9SNikolay Aleksandrov struct hlist_node mdb_node; 2396ec0d0eeSNikolay Aleksandrov 2406ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 241eb1d1641SHerbert Xu }; 242eb1d1641SHerbert Xu 2431f90c7f3SNikolay Aleksandrov struct net_bridge_port { 2441da177e4SLinus Torvalds struct net_bridge *br; 2451da177e4SLinus Torvalds struct net_device *dev; 2461da177e4SLinus Torvalds struct list_head list; 2471da177e4SLinus Torvalds 2481f90c7f3SNikolay Aleksandrov unsigned long flags; 2491f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 2501f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 2511f90c7f3SNikolay Aleksandrov #endif 2522756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 2531f90c7f3SNikolay Aleksandrov 2541da177e4SLinus Torvalds /* STP */ 2551da177e4SLinus Torvalds u8 priority; 2561da177e4SLinus Torvalds u8 state; 2571da177e4SLinus Torvalds u16 port_no; 2581da177e4SLinus Torvalds unsigned char topology_change_ack; 2591da177e4SLinus Torvalds unsigned char config_pending; 2601da177e4SLinus Torvalds port_id port_id; 2611da177e4SLinus Torvalds port_id designated_port; 2621da177e4SLinus Torvalds bridge_id designated_root; 2631da177e4SLinus Torvalds bridge_id designated_bridge; 2641da177e4SLinus Torvalds u32 path_cost; 2651da177e4SLinus Torvalds u32 designated_cost; 2660c03150eSstephen hemminger unsigned long designated_age; 2671da177e4SLinus Torvalds 2681da177e4SLinus Torvalds struct timer_list forward_delay_timer; 2691da177e4SLinus Torvalds struct timer_list hold_timer; 2701da177e4SLinus Torvalds struct timer_list message_age_timer; 2711da177e4SLinus Torvalds struct kobject kobj; 2721da177e4SLinus Torvalds struct rcu_head rcu; 2733982d3d2SFischer, Anna 274eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 27590010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 276cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 27790010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 278cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 279eb1d1641SHerbert Xu unsigned char multicast_router; 2801080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 281eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 282eb1d1641SHerbert Xu struct hlist_head mglist; 283eb1d1641SHerbert Xu struct hlist_node rlist; 284eb1d1641SHerbert Xu #endif 285e0f43752SSimon Arlott 286e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 287e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 288e0f43752SSimon Arlott #endif 28991d2c34aSHerbert Xu 29091d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 29191d2c34aSHerbert Xu struct netpoll *np; 29291d2c34aSHerbert Xu #endif 2936bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 2946bc506b4SIdo Schimmel int offload_fwd_mark; 2956bc506b4SIdo Schimmel #endif 2965af48b59SNikolay Aleksandrov u16 group_fwd_mask; 2972756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 298de179966SVivien Didelot 299de179966SVivien Didelot struct bridge_stp_xstats stp_xstats; 3001da177e4SLinus Torvalds }; 3011da177e4SLinus Torvalds 302705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 303705e0deaSTyler Hicks 304e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 305f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 306e028e4b8SVlad Yasevich 307b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 308b5ed54e9Sstephen hemminger { 309716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 310b5ed54e9Sstephen hemminger } 311b5ed54e9Sstephen hemminger 3121fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 313b5ed54e9Sstephen hemminger { 31435f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 315ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 316b5ed54e9Sstephen hemminger } 317b5ed54e9Sstephen hemminger 3180baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 3190baa10ffSArkadi Sharshevsky { 32035f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 3210baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3220baa10ffSArkadi Sharshevsky } 3230baa10ffSArkadi Sharshevsky 324ae75767eSNikolay Aleksandrov enum net_bridge_opts { 325ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 326ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 3278df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 3288df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 3298df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 330be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 33113cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 332675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 333675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 334675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 335675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 336c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 3373341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 3389163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 33970e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 3409c0ec2e7SMike Manning BROPT_VLAN_BRIDGE_BINDING, 341ae75767eSNikolay Aleksandrov }; 342ae75767eSNikolay Aleksandrov 3431f90c7f3SNikolay Aleksandrov struct net_bridge { 3441da177e4SLinus Torvalds spinlock_t lock; 3451f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 3461da177e4SLinus Torvalds struct list_head port_list; 3471da177e4SLinus Torvalds struct net_device *dev; 3488f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 349ae75767eSNikolay Aleksandrov unsigned long options; 3501f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3511f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3521f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3531f90c7f3SNikolay Aleksandrov u16 default_pvid; 3541f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3551f90c7f3SNikolay Aleksandrov #endif 3561f90c7f3SNikolay Aleksandrov 357eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 35834666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 359efb6de9bSBernhard Thaler union { 3604adf0af6SSimon Wunderlich struct rtable fake_rtable; 361efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 362efb6de9bSBernhard Thaler }; 3634adf0af6SSimon Wunderlich #endif 364515853ccSstephen hemminger u16 group_fwd_mask; 365f2808d22SToshiaki Makita u16 group_fwd_mask_required; 366515853ccSstephen hemminger 3671da177e4SLinus Torvalds /* STP */ 3681da177e4SLinus Torvalds bridge_id designated_root; 3691da177e4SLinus Torvalds bridge_id bridge_id; 3701f90c7f3SNikolay Aleksandrov unsigned char topology_change; 3711f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 3721f90c7f3SNikolay Aleksandrov u16 root_port; 3731da177e4SLinus Torvalds unsigned long max_age; 3741da177e4SLinus Torvalds unsigned long hello_time; 3751da177e4SLinus Torvalds unsigned long forward_delay; 3761da177e4SLinus Torvalds unsigned long ageing_time; 37734d8acd8SVivien Didelot unsigned long bridge_max_age; 3781da177e4SLinus Torvalds unsigned long bridge_hello_time; 3791da177e4SLinus Torvalds unsigned long bridge_forward_delay; 38034d8acd8SVivien Didelot unsigned long bridge_ageing_time; 38135750b0bSNikolay Aleksandrov u32 root_path_cost; 3821da177e4SLinus Torvalds 383fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 3849cde0708SStephen Hemminger 3859cde0708SStephen Hemminger enum { 3869cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 3879cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 3889cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 3899cde0708SStephen Hemminger } stp_enabled; 3909cde0708SStephen Hemminger 391eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 392eb1d1641SHerbert Xu 393eb1d1641SHerbert Xu u32 hash_max; 394eb1d1641SHerbert Xu 395eb1d1641SHerbert Xu u32 multicast_last_member_count; 396eb1d1641SHerbert Xu u32 multicast_startup_query_count; 397eb1d1641SHerbert Xu 3985e923585SNikolay Aleksandrov u8 multicast_igmp_version; 399675779adSNikolay Aleksandrov u8 multicast_router; 400675779adSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 401675779adSNikolay Aleksandrov u8 multicast_mld_version; 402675779adSNikolay Aleksandrov #endif 40335750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 404eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 405eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 406eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 407eb1d1641SHerbert Xu unsigned long multicast_query_interval; 408eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 409eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 410eb1d1641SHerbert Xu 41119e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 41219e3a9c9SNikolay Aleksandrov 41319e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 414eb1d1641SHerbert Xu struct hlist_head router_list; 415eb1d1641SHerbert Xu 416eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 41790010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 41890010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 419dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 4201080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 421cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 42290010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 42390010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 424dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 425cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 426eb1d1641SHerbert Xu #endif 427eb1d1641SHerbert Xu 4281da177e4SLinus Torvalds struct timer_list hello_timer; 4291da177e4SLinus Torvalds struct timer_list tcn_timer; 4301da177e4SLinus Torvalds struct timer_list topology_change_timer; 431f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 43243b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 433e028e4b8SVlad Yasevich u32 auto_cnt; 4346bc506b4SIdo Schimmel 4356bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4366bc506b4SIdo Schimmel int offload_fwd_mark; 4376bc506b4SIdo Schimmel #endif 438eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4394b8d7d4cSHoratiu Vultur 4404b8d7d4cSHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 4419b14d1f8SHoratiu Vultur struct list_head mrp_list; 4424b8d7d4cSHoratiu Vultur #endif 4431da177e4SLinus Torvalds }; 4441da177e4SLinus Torvalds 44568b7c895SHerbert Xu struct br_input_skb_cb { 44668b7c895SHerbert Xu struct net_device *brdev; 44793fdd47eSHerbert Xu 4483c171f49SPablo Neira Ayuso u16 frag_max_size; 44932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 450f12064d1SFlorian Westphal u8 igmp; 451f12064d1SFlorian Westphal u8 mrouters_only:1; 45232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 453f12064d1SFlorian Westphal u8 proxyarp_replied:1; 454f12064d1SFlorian Westphal u8 src_port_isolated:1; 45520adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 456f12064d1SFlorian Westphal u8 vlan_filtered:1; 45720adfa1aSVlad Yasevich #endif 458223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 459223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 460223fd0adSFlorian Westphal #endif 4616bc506b4SIdo Schimmel 4626bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4636bc506b4SIdo Schimmel int offload_fwd_mark; 4646bc506b4SIdo Schimmel #endif 46568b7c895SHerbert Xu }; 46668b7c895SHerbert Xu 46768b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 46868b7c895SHerbert Xu 46932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 47032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 47132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 47232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 47332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 47432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 47528a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 47628a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 47728a16c97Sstephen hemminger 47828a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 47928a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 48028a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 48128a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 48228a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 48328a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 48428a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 48528a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 48628a16c97Sstephen hemminger 48728a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 48828a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 48928a16c97Sstephen hemminger 4901da177e4SLinus Torvalds /* called under bridge lock */ 4911da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 4921da177e4SLinus Torvalds { 4931da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 4941da177e4SLinus Torvalds } 4951da177e4SLinus Torvalds 4962594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 4972594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 4982594e906SNikolay Aleksandrov { 4992594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 5002594e906SNikolay Aleksandrov } 5012594e906SNikolay Aleksandrov 5022594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 5032594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 5042594e906SNikolay Aleksandrov { 5052594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 5062594e906SNikolay Aleksandrov } 5072594e906SNikolay Aleksandrov 5086be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 5092594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 5102594e906SNikolay Aleksandrov { 5112594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 5122594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 5132594e906SNikolay Aleksandrov return true; 5142594e906SNikolay Aleksandrov else 5152594e906SNikolay Aleksandrov return false; 5162594e906SNikolay Aleksandrov } 5172594e906SNikolay Aleksandrov 5182594e906SNikolay Aleksandrov return true; 5192594e906SNikolay Aleksandrov } 5202594e906SNikolay Aleksandrov 5215d1fcaf3SNikolay Aleksandrov static inline bool nbp_state_should_learn(const struct net_bridge_port *p) 5225d1fcaf3SNikolay Aleksandrov { 5235d1fcaf3SNikolay Aleksandrov return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; 5245d1fcaf3SNikolay Aleksandrov } 5255d1fcaf3SNikolay Aleksandrov 5268f4cc940SNikolay Aleksandrov static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack) 5275a46facbSNikolay Aleksandrov { 5288f4cc940SNikolay Aleksandrov bool ret = vid > 0 && vid < VLAN_VID_MASK; 5298f4cc940SNikolay Aleksandrov 5308f4cc940SNikolay Aleksandrov if (!ret) 5318f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid"); 5328f4cc940SNikolay Aleksandrov 5338f4cc940SNikolay Aleksandrov return ret; 5345a46facbSNikolay Aleksandrov } 5355a46facbSNikolay Aleksandrov 5365a46facbSNikolay Aleksandrov static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, 5378f4cc940SNikolay Aleksandrov const struct bridge_vlan_info *last, 5388f4cc940SNikolay Aleksandrov struct netlink_ext_ack *extack) 5395a46facbSNikolay Aleksandrov { 5405a46facbSNikolay Aleksandrov /* pvid flag is not allowed in ranges */ 5418f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_PVID) { 5428f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range"); 5435a46facbSNikolay Aleksandrov return false; 5448f4cc940SNikolay Aleksandrov } 5455a46facbSNikolay Aleksandrov 5465a46facbSNikolay Aleksandrov /* when cur is the range end, check if: 5475a46facbSNikolay Aleksandrov * - it has range start flag 5485a46facbSNikolay Aleksandrov * - range ids are invalid (end is equal to or before start) 5495a46facbSNikolay Aleksandrov */ 5505a46facbSNikolay Aleksandrov if (last) { 5518f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { 5528f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one"); 5535a46facbSNikolay Aleksandrov return false; 5548f4cc940SNikolay Aleksandrov } else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) { 5558f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing"); 5568f4cc940SNikolay Aleksandrov return false; 5578f4cc940SNikolay Aleksandrov } else if (cur->vid <= last->vid) { 5588f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); 5598f4cc940SNikolay Aleksandrov return false; 5608f4cc940SNikolay Aleksandrov } 5618f4cc940SNikolay Aleksandrov } 5628f4cc940SNikolay Aleksandrov 5638f4cc940SNikolay Aleksandrov /* check for required range flags */ 5648f4cc940SNikolay Aleksandrov if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 5658f4cc940SNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END))) { 5668f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing"); 5675a46facbSNikolay Aleksandrov return false; 5685a46facbSNikolay Aleksandrov } 5695a46facbSNikolay Aleksandrov 5705a46facbSNikolay Aleksandrov return true; 5715a46facbSNikolay Aleksandrov } 5725a46facbSNikolay Aleksandrov 573f545923bSNikolay Aleksandrov static inline int br_afspec_cmd_to_rtm(int cmd) 574f545923bSNikolay Aleksandrov { 575f545923bSNikolay Aleksandrov switch (cmd) { 576f545923bSNikolay Aleksandrov case RTM_SETLINK: 577f545923bSNikolay Aleksandrov return RTM_NEWVLAN; 578f545923bSNikolay Aleksandrov case RTM_DELLINK: 579f545923bSNikolay Aleksandrov return RTM_DELVLAN; 580f545923bSNikolay Aleksandrov } 581f545923bSNikolay Aleksandrov 582f545923bSNikolay Aleksandrov return 0; 583f545923bSNikolay Aleksandrov } 584f545923bSNikolay Aleksandrov 585ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 586ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 587ae75767eSNikolay Aleksandrov { 588ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 589ae75767eSNikolay Aleksandrov } 590ae75767eSNikolay Aleksandrov 591a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 592a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 593a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 594a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 595a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 596a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 597a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 598a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 599ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 600ae75767eSNikolay Aleksandrov 6011da177e4SLinus Torvalds /* br_device.c */ 602348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 603348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 604348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 605cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 60691d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 60791d2c34aSHerbert Xu struct sk_buff *skb) 60891d2c34aSHerbert Xu { 609f78ed220SEric Dumazet netpoll_send_skb(p->np, skb); 61091d2c34aSHerbert Xu } 61191d2c34aSHerbert Xu 612a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 613348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 61491d2c34aSHerbert Xu #else 6159f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 61691d2c34aSHerbert Xu struct sk_buff *skb) 61791d2c34aSHerbert Xu { 61891d2c34aSHerbert Xu } 61991d2c34aSHerbert Xu 620a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 62191d2c34aSHerbert Xu { 62291d2c34aSHerbert Xu return 0; 62391d2c34aSHerbert Xu } 62491d2c34aSHerbert Xu 62591d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 62691d2c34aSHerbert Xu { 62791d2c34aSHerbert Xu } 628cfb478daSstephen hemminger #endif 6291da177e4SLinus Torvalds 6301da177e4SLinus Torvalds /* br_fdb.c */ 631348662a1SJoe Perches int br_fdb_init(void); 632348662a1SJoe Perches void br_fdb_fini(void); 633eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 634eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 635348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 636424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 637424bb9c9SToshiaki Makita const struct net_bridge_port *p, 638424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 639348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 640348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 641f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 642348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 6431ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 644bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 645bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 646bfd0aeacSNikolay Aleksandrov __u16 vid); 647348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 648348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 649348662a1SJoe Perches unsigned long off); 650348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 651348662a1SJoe Perches const unsigned char *addr, u16 vid); 652348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 653be0c5677SNikolay Aleksandrov const unsigned char *addr, u16 vid, unsigned long flags); 65477162022SJohn Fastabend 655348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 656f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 657348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 65887b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 65987b0984eSPetr Machata struct netlink_ext_ack *extack); 660348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 661d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 66247674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 66347674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 66447674562SRoopa Prabhu struct netlink_ext_ack *extack); 6658db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 6668db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 6673aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 668161d82deSPetr Machata const unsigned char *addr, u16 vid, 669161d82deSPetr Machata bool swdev_notify); 6703aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 671161d82deSPetr Machata const unsigned char *addr, u16 vid, 672161d82deSPetr Machata bool swdev_notify); 6739fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 674e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 6751da177e4SLinus Torvalds 6761da177e4SLinus Torvalds /* br_forward.c */ 6778addd5e7SNikolay Aleksandrov enum br_pkt_type { 6788addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 6798addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 6808addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 6818addd5e7SNikolay Aleksandrov }; 6820c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 683b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 68437b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 6850c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 68637b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 6878addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 6881da177e4SLinus Torvalds 6897d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 6907d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 6917d850abdSNikolay Aleksandrov const struct sk_buff *skb) 6927d850abdSNikolay Aleksandrov { 6937d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 6947d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 6957d850abdSNikolay Aleksandrov } 6967d850abdSNikolay Aleksandrov 6971da177e4SLinus Torvalds /* br_if.c */ 698faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 699348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 700348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 701ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 702ca752be0SDavid Ahern struct netlink_ext_ack *extack); 703348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 704804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 705348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 706c8f44affSMichał Mirosław netdev_features_t features); 707e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 7082796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 7092756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 7101da177e4SLinus Torvalds 7111da177e4SLinus Torvalds /* br_input.c */ 7120c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 7139eb8eff0SVladimir Oltean rx_handler_func_t *br_get_rx_handler(const struct net_device *dev); 7141da177e4SLinus Torvalds 715859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 716859828c0SJiri Pirko { 7179eb8eff0SVladimir Oltean return rcu_dereference(dev->rx_handler) == br_get_rx_handler(dev); 718859828c0SJiri Pirko } 719859828c0SJiri Pirko 7204d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 7214d4fd361SPetr Machata { 7229eb8eff0SVladimir Oltean return rcu_dereference_rtnl(dev->rx_handler) == br_get_rx_handler(dev); 7234d4fd361SPetr Machata } 7244d4fd361SPetr Machata 725859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 726859828c0SJiri Pirko { 727859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 728859828c0SJiri Pirko } 729859828c0SJiri Pirko 7304d4fd361SPetr Machata static inline struct net_bridge_port * 7314d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 7324d4fd361SPetr Machata { 7334d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 7344d4fd361SPetr Machata } 7354d4fd361SPetr Machata 7361da177e4SLinus Torvalds /* br_ioctl.c */ 737348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 738348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 739348662a1SJoe Perches void __user *arg); 7401da177e4SLinus Torvalds 741eb1d1641SHerbert Xu /* br_multicast.c */ 742eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 743348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 744fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 745348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 746eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 7471080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 748348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 749348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 750348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 751348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 752348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 753348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 754e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 75537b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 75637b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 757348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 758348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 759348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 760348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 761348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 7625e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 763aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 764aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 765aa2ae3e7SNikolay Aleksandrov #endif 766348662a1SJoe Perches struct net_bridge_mdb_entry * 76719e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 768348662a1SJoe Perches struct net_bridge_mdb_entry * 76919e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 770348662a1SJoe Perches struct net_bridge_port_group * 771348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 772762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 7736db6f0eaSFelix Fietkau unsigned char flags, const unsigned char *src); 77419e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 77519e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 77645ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 77745ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 778949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 779949f1e39SSatish Ashok int type); 7801080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 781a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 7821080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 783b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 7841080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 7851080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 7861080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 78719e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 78819e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 7891bc844eeSNikolay Aleksandrov void br_multicast_host_join(struct net_bridge_mdb_entry *mp, bool notify); 7901bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 79185b35269SSridhar Samudrala 792cfd56754SCong Wang #define mlock_dereference(X, br) \ 793cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 794cfd56754SCong Wang 79585b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 79685b35269SSridhar Samudrala { 79785b35269SSridhar Samudrala return br->multicast_router == 2 || 79885b35269SSridhar Samudrala (br->multicast_router == 1 && 79985b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 80085b35269SSridhar Samudrala } 801b00589afSLinus Lüssing 802cc0fdd80SLinus Lüssing static inline bool 803cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 8040888d5f3Sdaniel struct bridge_mcast_other_query *querier, 8050888d5f3Sdaniel const bool is_ipv6) 806b00589afSLinus Lüssing { 8070888d5f3Sdaniel bool own_querier_enabled; 8080888d5f3Sdaniel 809675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 810675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 8110888d5f3Sdaniel own_querier_enabled = false; 8120888d5f3Sdaniel else 8130888d5f3Sdaniel own_querier_enabled = true; 8140888d5f3Sdaniel } else { 8150888d5f3Sdaniel own_querier_enabled = false; 8160888d5f3Sdaniel } 8170888d5f3Sdaniel 818cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 8190888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 820cc0fdd80SLinus Lüssing } 821cc0fdd80SLinus Lüssing 822cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 823cc0fdd80SLinus Lüssing struct ethhdr *eth) 824cc0fdd80SLinus Lüssing { 825cc0fdd80SLinus Lüssing switch (eth->h_proto) { 826cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 8270888d5f3Sdaniel return __br_multicast_querier_exists(br, 8280888d5f3Sdaniel &br->ip4_other_query, false); 829cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 830cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 8310888d5f3Sdaniel return __br_multicast_querier_exists(br, 8320888d5f3Sdaniel &br->ip6_other_query, true); 833cc0fdd80SLinus Lüssing #endif 834cc0fdd80SLinus Lüssing default: 835cc0fdd80SLinus Lüssing return false; 836cc0fdd80SLinus Lüssing } 837b00589afSLinus Lüssing } 8381080ab95SNikolay Aleksandrov 8391080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 8401080ab95SNikolay Aleksandrov { 8411080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 8421080ab95SNikolay Aleksandrov } 843eb1d1641SHerbert Xu #else 844eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 845eb1d1641SHerbert Xu struct net_bridge_port *port, 84606499098SVlad Yasevich struct sk_buff *skb, 84706499098SVlad Yasevich u16 vid) 848eb1d1641SHerbert Xu { 849eb1d1641SHerbert Xu return 0; 850eb1d1641SHerbert Xu } 851eb1d1641SHerbert Xu 852eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 853fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 854eb1d1641SHerbert Xu { 855eb1d1641SHerbert Xu return NULL; 856eb1d1641SHerbert Xu } 857eb1d1641SHerbert Xu 8581080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 859eb1d1641SHerbert Xu { 8601080ab95SNikolay Aleksandrov return 0; 861eb1d1641SHerbert Xu } 862eb1d1641SHerbert Xu 863eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 864eb1d1641SHerbert Xu { 865eb1d1641SHerbert Xu } 866eb1d1641SHerbert Xu 867eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 868eb1d1641SHerbert Xu { 869eb1d1641SHerbert Xu } 870eb1d1641SHerbert Xu 871eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 872eb1d1641SHerbert Xu { 873eb1d1641SHerbert Xu } 874eb1d1641SHerbert Xu 875eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 876eb1d1641SHerbert Xu { 877eb1d1641SHerbert Xu } 878eb1d1641SHerbert Xu 879eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 880eb1d1641SHerbert Xu { 881eb1d1641SHerbert Xu } 882eb1d1641SHerbert Xu 883eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 884eb1d1641SHerbert Xu { 885eb1d1641SHerbert Xu } 8865cb5e947SHerbert Xu 887a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 888a7ce45a7SNikolay Aleksandrov { 889a7ce45a7SNikolay Aleksandrov } 890a7ce45a7SNikolay Aleksandrov 89137b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 89237b090e6SNikolay Aleksandrov struct sk_buff *skb, 89337b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 8945cb5e947SHerbert Xu { 8955cb5e947SHerbert Xu } 8965cb5e947SHerbert Xu 897eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 898eb1d1641SHerbert Xu { 89903aaa9e2SGustavo A. R. Silva return false; 900eb1d1641SHerbert Xu } 90137b090e6SNikolay Aleksandrov 902cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 903cc0fdd80SLinus Lüssing struct ethhdr *eth) 904b00589afSLinus Lüssing { 905b00589afSLinus Lüssing return false; 906b00589afSLinus Lüssing } 90737b090e6SNikolay Aleksandrov 908fdb184d1SRami Rosen static inline void br_mdb_init(void) 909fdb184d1SRami Rosen { 910fdb184d1SRami Rosen } 91137b090e6SNikolay Aleksandrov 912fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 913fdb184d1SRami Rosen { 914fdb184d1SRami Rosen } 9151080ab95SNikolay Aleksandrov 91619e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 91719e3a9c9SNikolay Aleksandrov { 91819e3a9c9SNikolay Aleksandrov return 0; 91919e3a9c9SNikolay Aleksandrov } 92019e3a9c9SNikolay Aleksandrov 92119e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 92219e3a9c9SNikolay Aleksandrov { 92319e3a9c9SNikolay Aleksandrov } 92419e3a9c9SNikolay Aleksandrov 9251080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 9261080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 927a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 928a65056ecSNikolay Aleksandrov u8 type, u8 dir) 9291080ab95SNikolay Aleksandrov { 9301080ab95SNikolay Aleksandrov } 9311080ab95SNikolay Aleksandrov 9321080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 9331080ab95SNikolay Aleksandrov { 9341080ab95SNikolay Aleksandrov return 0; 9351080ab95SNikolay Aleksandrov } 9361080ab95SNikolay Aleksandrov 937b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 938b6fe0440SIdo Schimmel { 939b6fe0440SIdo Schimmel } 940b6fe0440SIdo Schimmel 9411080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 9421080ab95SNikolay Aleksandrov { 9431080ab95SNikolay Aleksandrov return 0; 9441080ab95SNikolay Aleksandrov } 94585b35269SSridhar Samudrala #endif 946eb1d1641SHerbert Xu 947243a2e63SVlad Yasevich /* br_vlan.c */ 948243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 94977751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 95077751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 951a580c76dSNikolay Aleksandrov u16 *vid, u8 *state); 95277751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 95385f46c6bSVlad Yasevich const struct sk_buff *skb); 954e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 955348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 95611538d03SRoopa Prabhu const struct net_bridge_port *port, 9572594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 95878851988SVlad Yasevich struct sk_buff *skb); 959f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 960169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 961348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 962348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 9632594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 964204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 965a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 966348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 967d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 968204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 9696dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 9709163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 9715be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 97296a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 973169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 974169327d5SPetr Machata struct netlink_ext_ack *extack); 975f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 976169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 977348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 978348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 979169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 9802594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 981a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 982a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 9839c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 984091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 9859c0ec2e7SMike Manning void *ptr); 9868dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void); 9878dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void); 988cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 989cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 990cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 991cf5bddb9SNikolay Aleksandrov int cmd); 992a5d29ae2SNikolay Aleksandrov bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 993a5d29ae2SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 994a37b85c9SVlad Yasevich 9952594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 996a37b85c9SVlad Yasevich const struct net_bridge *br) 997a37b85c9SVlad Yasevich { 998907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 999a37b85c9SVlad Yasevich } 1000a37b85c9SVlad Yasevich 10012594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 1002a37b85c9SVlad Yasevich const struct net_bridge_port *p) 1003a37b85c9SVlad Yasevich { 1004907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 1005907b1e6eSNikolay Aleksandrov } 1006907b1e6eSNikolay Aleksandrov 1007907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1008907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1009907b1e6eSNikolay Aleksandrov { 1010907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 1011907b1e6eSNikolay Aleksandrov } 1012907b1e6eSNikolay Aleksandrov 1013907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1014907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1015907b1e6eSNikolay Aleksandrov { 1016907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 1017a37b85c9SVlad Yasevich } 1018a37b85c9SVlad Yasevich 1019a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 1020a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 1021a37b85c9SVlad Yasevich */ 1022a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 1023a37b85c9SVlad Yasevich { 1024a37b85c9SVlad Yasevich int err = 0; 1025a37b85c9SVlad Yasevich 10262594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 10275978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 10282594e906SNikolay Aleksandrov } else { 1029a37b85c9SVlad Yasevich *vid = 0; 1030a37b85c9SVlad Yasevich err = -EINVAL; 1031a37b85c9SVlad Yasevich } 1032a37b85c9SVlad Yasevich 1033a37b85c9SVlad Yasevich return err; 1034a37b85c9SVlad Yasevich } 103578851988SVlad Yasevich 103677751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 103778851988SVlad Yasevich { 103877751ee8SNikolay Aleksandrov if (!vg) 10395be5a2dfSVlad Yasevich return 0; 10405be5a2dfSVlad Yasevich 104178851988SVlad Yasevich smp_rmb(); 104277751ee8SNikolay Aleksandrov return vg->pvid; 104378851988SVlad Yasevich } 104478851988SVlad Yasevich 10458dcea187SNikolay Aleksandrov static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) 10468dcea187SNikolay Aleksandrov { 10478dcea187SNikolay Aleksandrov return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags; 10488dcea187SNikolay Aleksandrov } 1049243a2e63SVlad Yasevich #else 105077751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 105177751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 10522594e906SNikolay Aleksandrov struct sk_buff *skb, 1053a580c76dSNikolay Aleksandrov u16 *vid, u8 *state) 10542594e906SNikolay Aleksandrov { 10552594e906SNikolay Aleksandrov return true; 10562594e906SNikolay Aleksandrov } 10572594e906SNikolay Aleksandrov 10582594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 105985f46c6bSVlad Yasevich const struct sk_buff *skb) 106085f46c6bSVlad Yasevich { 106185f46c6bSVlad Yasevich return true; 106285f46c6bSVlad Yasevich } 106385f46c6bSVlad Yasevich 1064e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 1065e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 1066e0d7968aSToshiaki Makita { 1067e0d7968aSToshiaki Makita return true; 1068e0d7968aSToshiaki Makita } 1069e0d7968aSToshiaki Makita 107078851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 107111538d03SRoopa Prabhu const struct net_bridge_port *port, 10722594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 107378851988SVlad Yasevich struct sk_buff *skb) 107478851988SVlad Yasevich { 107578851988SVlad Yasevich return skb; 107678851988SVlad Yasevich } 107778851988SVlad Yasevich 1078f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1079169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1080243a2e63SVlad Yasevich { 1081f418af63SNikolay Aleksandrov *changed = false; 1082243a2e63SVlad Yasevich return -EOPNOTSUPP; 1083243a2e63SVlad Yasevich } 1084243a2e63SVlad Yasevich 1085243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 1086243a2e63SVlad Yasevich { 1087243a2e63SVlad Yasevich return -EOPNOTSUPP; 1088243a2e63SVlad Yasevich } 1089243a2e63SVlad Yasevich 1090243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1091243a2e63SVlad Yasevich { 1092243a2e63SVlad Yasevich } 1093243a2e63SVlad Yasevich 1094204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1095204177f3SToshiaki Makita { 1096204177f3SToshiaki Makita } 1097204177f3SToshiaki Makita 10985be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 10998580e211SToshiaki Makita { 11005be5a2dfSVlad Yasevich return 0; 11018580e211SToshiaki Makita } 11028580e211SToshiaki Makita 1103f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1104169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1105243a2e63SVlad Yasevich { 1106f418af63SNikolay Aleksandrov *changed = false; 1107243a2e63SVlad Yasevich return -EOPNOTSUPP; 1108243a2e63SVlad Yasevich } 1109243a2e63SVlad Yasevich 1110243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1111243a2e63SVlad Yasevich { 1112243a2e63SVlad Yasevich return -EOPNOTSUPP; 1113243a2e63SVlad Yasevich } 1114243a2e63SVlad Yasevich 1115243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1116243a2e63SVlad Yasevich { 1117243a2e63SVlad Yasevich } 1118243a2e63SVlad Yasevich 11192594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 11202594e906SNikolay Aleksandrov u16 vid) 1121a37b85c9SVlad Yasevich { 1122a37b85c9SVlad Yasevich return NULL; 1123a37b85c9SVlad Yasevich } 1124bc9a25d2SVlad Yasevich 1125169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1126169327d5SPetr Machata struct netlink_ext_ack *extack) 11275be5a2dfSVlad Yasevich { 11285be5a2dfSVlad Yasevich return 0; 11295be5a2dfSVlad Yasevich } 11305be5a2dfSVlad Yasevich 113178851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1132a37b85c9SVlad Yasevich { 1133a37b85c9SVlad Yasevich return 0; 1134a37b85c9SVlad Yasevich } 11352594e906SNikolay Aleksandrov 113677751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 113778851988SVlad Yasevich { 11383df6bf45SVlad Yasevich return 0; 113978851988SVlad Yasevich } 11402796d0c6SVlad Yasevich 1141a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1142a7854037SNikolay Aleksandrov unsigned long val) 1143a7854037SNikolay Aleksandrov { 1144a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1145a7854037SNikolay Aleksandrov } 11462594e906SNikolay Aleksandrov 11472594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 11482594e906SNikolay Aleksandrov u32 filter_mask) 11492594e906SNikolay Aleksandrov { 11502594e906SNikolay Aleksandrov return 0; 11512594e906SNikolay Aleksandrov } 11522594e906SNikolay Aleksandrov 11532594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 11542594e906SNikolay Aleksandrov const struct net_bridge *br) 11552594e906SNikolay Aleksandrov { 11562594e906SNikolay Aleksandrov return NULL; 11572594e906SNikolay Aleksandrov } 11582594e906SNikolay Aleksandrov 11592594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 11602594e906SNikolay Aleksandrov const struct net_bridge_port *p) 11612594e906SNikolay Aleksandrov { 11622594e906SNikolay Aleksandrov return NULL; 11632594e906SNikolay Aleksandrov } 1164907b1e6eSNikolay Aleksandrov 1165907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1166907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1167907b1e6eSNikolay Aleksandrov { 1168907b1e6eSNikolay Aleksandrov return NULL; 1169907b1e6eSNikolay Aleksandrov } 1170907b1e6eSNikolay Aleksandrov 1171907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1172907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1173907b1e6eSNikolay Aleksandrov { 1174907b1e6eSNikolay Aleksandrov return NULL; 1175907b1e6eSNikolay Aleksandrov } 1176a60c0903SNikolay Aleksandrov 1177a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1178a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1179a60c0903SNikolay Aleksandrov { 1180a60c0903SNikolay Aleksandrov } 11819c0ec2e7SMike Manning 11829c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 11839c0ec2e7SMike Manning unsigned long event) 11849c0ec2e7SMike Manning { 11859c0ec2e7SMike Manning } 11869c0ec2e7SMike Manning 1187091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 11889c0ec2e7SMike Manning unsigned long event, void *ptr) 11899c0ec2e7SMike Manning { 1190091adf9bSNikolay Aleksandrov return 0; 11919c0ec2e7SMike Manning } 11928dcea187SNikolay Aleksandrov 11938dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_init(void) 11948dcea187SNikolay Aleksandrov { 11958dcea187SNikolay Aleksandrov } 11968dcea187SNikolay Aleksandrov 11978dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_uninit(void) 11988dcea187SNikolay Aleksandrov { 11998dcea187SNikolay Aleksandrov } 1200cf5bddb9SNikolay Aleksandrov 1201cf5bddb9SNikolay Aleksandrov static inline void br_vlan_notify(const struct net_bridge *br, 1202cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1203cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1204cf5bddb9SNikolay Aleksandrov int cmd) 1205cf5bddb9SNikolay Aleksandrov { 1206cf5bddb9SNikolay Aleksandrov } 1207528ae84aSNikolay Aleksandrov 1208528ae84aSNikolay Aleksandrov static inline bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1209528ae84aSNikolay Aleksandrov const struct net_bridge_vlan *range_end) 1210528ae84aSNikolay Aleksandrov { 1211528ae84aSNikolay Aleksandrov return true; 1212528ae84aSNikolay Aleksandrov } 1213243a2e63SVlad Yasevich #endif 1214243a2e63SVlad Yasevich 12157a53e718SNikolay Aleksandrov /* br_vlan_options.c */ 12167a53e718SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 121799f7c5e0SNikolay Aleksandrov bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, 121899f7c5e0SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 12197a53e718SNikolay Aleksandrov bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v); 12207a53e718SNikolay Aleksandrov size_t br_vlan_opts_nl_size(void); 1221a5d29ae2SNikolay Aleksandrov int br_vlan_process_options(const struct net_bridge *br, 1222a5d29ae2SNikolay Aleksandrov const struct net_bridge_port *p, 1223a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_start, 1224a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_end, 1225a5d29ae2SNikolay Aleksandrov struct nlattr **tb, 1226a5d29ae2SNikolay Aleksandrov struct netlink_ext_ack *extack); 1227a580c76dSNikolay Aleksandrov 1228a580c76dSNikolay Aleksandrov /* vlan state manipulation helpers using *_ONCE to annotate lock-free access */ 1229a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v) 1230a580c76dSNikolay Aleksandrov { 1231a580c76dSNikolay Aleksandrov return READ_ONCE(v->state); 1232a580c76dSNikolay Aleksandrov } 1233a580c76dSNikolay Aleksandrov 1234a580c76dSNikolay Aleksandrov static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state) 1235a580c76dSNikolay Aleksandrov { 1236a580c76dSNikolay Aleksandrov WRITE_ONCE(v->state, state); 1237a580c76dSNikolay Aleksandrov } 1238a580c76dSNikolay Aleksandrov 1239a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg) 1240a580c76dSNikolay Aleksandrov { 1241a580c76dSNikolay Aleksandrov return READ_ONCE(vg->pvid_state); 1242a580c76dSNikolay Aleksandrov } 1243a580c76dSNikolay Aleksandrov 1244a580c76dSNikolay Aleksandrov static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg, 1245a580c76dSNikolay Aleksandrov u8 state) 1246a580c76dSNikolay Aleksandrov { 1247a580c76dSNikolay Aleksandrov WRITE_ONCE(vg->pvid_state, state); 1248a580c76dSNikolay Aleksandrov } 1249a580c76dSNikolay Aleksandrov 1250a580c76dSNikolay Aleksandrov /* learn_allow is true at ingress and false at egress */ 1251a580c76dSNikolay Aleksandrov static inline bool br_vlan_state_allowed(u8 state, bool learn_allow) 1252a580c76dSNikolay Aleksandrov { 1253a580c76dSNikolay Aleksandrov switch (state) { 1254a580c76dSNikolay Aleksandrov case BR_STATE_LEARNING: 1255a580c76dSNikolay Aleksandrov return learn_allow; 1256a580c76dSNikolay Aleksandrov case BR_STATE_FORWARDING: 1257a580c76dSNikolay Aleksandrov return true; 1258a580c76dSNikolay Aleksandrov default: 1259a580c76dSNikolay Aleksandrov return false; 1260a580c76dSNikolay Aleksandrov } 1261a580c76dSNikolay Aleksandrov } 12627a53e718SNikolay Aleksandrov #endif 12637a53e718SNikolay Aleksandrov 12641a4ba64dSPablo Neira Ayuso struct nf_br_ops { 12651a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 12661a4ba64dSPablo Neira Ayuso }; 12671a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 12681a4ba64dSPablo Neira Ayuso 12691da177e4SLinus Torvalds /* br_netfilter.c */ 127034666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 127134666d46SPablo Neira Ayuso int br_nf_core_init(void); 127234666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1273348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1274c0909713SStephen Hemminger #else 127534666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 127634666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 12774adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1278c0909713SStephen Hemminger #endif 12791da177e4SLinus Torvalds 12801da177e4SLinus Torvalds /* br_stp.c */ 1281775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1282348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1283348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1284348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 12851da177e4SLinus Torvalds 1286348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1287348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1288348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1289348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 129082dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 12919e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 129214f98f25Sstephen hemminger 129314f98f25Sstephen hemminger 12941da177e4SLinus Torvalds /* br_stp_if.c */ 1295348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1296348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1297419dba8aSHoratiu Vultur int br_stp_set_enabled(struct net_bridge *br, unsigned long val, 1298419dba8aSHoratiu Vultur struct netlink_ext_ack *extack); 1299348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1300348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1301348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1302348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1303348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1304348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1305348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1306348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 13071da177e4SLinus Torvalds 13081da177e4SLinus Torvalds /* br_stp_bpdu.c */ 13097c85fbf0SPatrick McHardy struct stp_proto; 1310348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 13117c85fbf0SPatrick McHardy struct net_device *dev); 13121da177e4SLinus Torvalds 13131da177e4SLinus Torvalds /* br_stp_timer.c */ 1314348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1315348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1316348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 13171da177e4SLinus Torvalds 13181da177e4SLinus Torvalds /* br.c */ 1319e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1320da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1321da678292SMichał Mirosław #endif 13221da177e4SLinus Torvalds 132365369933SHoratiu Vultur /* br_mrp.c */ 132465369933SHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 132565369933SHoratiu Vultur int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 132665369933SHoratiu Vultur struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 132765369933SHoratiu Vultur int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb); 132865369933SHoratiu Vultur bool br_mrp_enabled(struct net_bridge *br); 132965369933SHoratiu Vultur void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p); 1330df42ef22SHoratiu Vultur int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br); 133165369933SHoratiu Vultur #else 133265369933SHoratiu Vultur static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 133365369933SHoratiu Vultur struct nlattr *attr, int cmd, 133465369933SHoratiu Vultur struct netlink_ext_ack *extack) 133565369933SHoratiu Vultur { 133665369933SHoratiu Vultur return -EOPNOTSUPP; 133765369933SHoratiu Vultur } 133865369933SHoratiu Vultur 133965369933SHoratiu Vultur static inline int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb) 134065369933SHoratiu Vultur { 134165369933SHoratiu Vultur return 0; 134265369933SHoratiu Vultur } 134365369933SHoratiu Vultur 134465369933SHoratiu Vultur static inline bool br_mrp_enabled(struct net_bridge *br) 134565369933SHoratiu Vultur { 13468741e184SJason Yan return false; 134765369933SHoratiu Vultur } 134865369933SHoratiu Vultur 134965369933SHoratiu Vultur static inline void br_mrp_port_del(struct net_bridge *br, 135065369933SHoratiu Vultur struct net_bridge_port *p) 135165369933SHoratiu Vultur { 135265369933SHoratiu Vultur } 1353df42ef22SHoratiu Vultur 1354df42ef22SHoratiu Vultur static inline int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br) 1355df42ef22SHoratiu Vultur { 1356df42ef22SHoratiu Vultur return 0; 1357df42ef22SHoratiu Vultur } 1358df42ef22SHoratiu Vultur 135965369933SHoratiu Vultur #endif 136065369933SHoratiu Vultur 136111dc1f36SStephen Hemminger /* br_netlink.c */ 1362149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1363348662a1SJoe Perches int br_netlink_init(void); 1364348662a1SJoe Perches void br_netlink_fini(void); 136592899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 136692899063SNikolay Aleksandrov const struct net_bridge_port *port); 13672fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 13682fd527b7SPetr Machata struct netlink_ext_ack *extack); 1369add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1370348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 137146c264daSNicolas Dichtel u32 filter_mask, int nlflags); 1372f26b2965SNikolay Aleksandrov int br_process_vlan_info(struct net_bridge *br, 1373f26b2965SNikolay Aleksandrov struct net_bridge_port *p, int cmd, 1374f26b2965SNikolay Aleksandrov struct bridge_vlan_info *vinfo_curr, 1375f26b2965SNikolay Aleksandrov struct bridge_vlan_info **vinfo_last, 1376f26b2965SNikolay Aleksandrov bool *changed, 1377f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack); 137811dc1f36SStephen Hemminger 13791da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 13801da177e4SLinus Torvalds /* br_sysfs_if.c */ 138152cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1382348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1383348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 13841da177e4SLinus Torvalds 13851da177e4SLinus Torvalds /* br_sysfs_br.c */ 1386348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1387348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 13881da177e4SLinus Torvalds 13891da177e4SLinus Torvalds #else 13901da177e4SLinus Torvalds 13910cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 13920cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 13930cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 13940cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 13951da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 13961da177e4SLinus Torvalds 13976bc506b4SIdo Schimmel /* br_switchdev.c */ 13986bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 13996bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 14006bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 14016bc506b4SIdo Schimmel struct sk_buff *skb); 14026bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 14036bc506b4SIdo Schimmel const struct sk_buff *skb); 14043922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 14053922285dSArkadi Sharshevsky unsigned long flags, 14063922285dSArkadi Sharshevsky unsigned long mask); 14076b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 14086b26b51bSArkadi Sharshevsky int type); 1409169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1410169327d5SPetr Machata struct netlink_ext_ack *extack); 1411d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1412f1c2eddfSIdo Schimmel 1413f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1414f1c2eddfSIdo Schimmel { 1415f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1416f1c2eddfSIdo Schimmel } 14176bc506b4SIdo Schimmel #else 14186bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 14196bc506b4SIdo Schimmel { 14206bc506b4SIdo Schimmel return 0; 14216bc506b4SIdo Schimmel } 14226bc506b4SIdo Schimmel 14236bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 14246bc506b4SIdo Schimmel struct sk_buff *skb) 14256bc506b4SIdo Schimmel { 14266bc506b4SIdo Schimmel } 14276bc506b4SIdo Schimmel 14286bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 14296bc506b4SIdo Schimmel const struct sk_buff *skb) 14306bc506b4SIdo Schimmel { 14316bc506b4SIdo Schimmel return true; 14326bc506b4SIdo Schimmel } 14333922285dSArkadi Sharshevsky 14343922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 14353922285dSArkadi Sharshevsky unsigned long flags, 14363922285dSArkadi Sharshevsky unsigned long mask) 14373922285dSArkadi Sharshevsky { 14383922285dSArkadi Sharshevsky return 0; 14393922285dSArkadi Sharshevsky } 14406b26b51bSArkadi Sharshevsky 1441d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1442169327d5SPetr Machata u16 vid, u16 flags, 1443169327d5SPetr Machata struct netlink_ext_ack *extack) 1444d66e4348SPetr Machata { 1445d66e4348SPetr Machata return -EOPNOTSUPP; 1446d66e4348SPetr Machata } 1447d66e4348SPetr Machata 1448d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1449d66e4348SPetr Machata { 1450d66e4348SPetr Machata return -EOPNOTSUPP; 1451d66e4348SPetr Machata } 1452d66e4348SPetr Machata 14536b26b51bSArkadi Sharshevsky static inline void 14546b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 14556b26b51bSArkadi Sharshevsky { 14566b26b51bSArkadi Sharshevsky } 1457f1c2eddfSIdo Schimmel 1458f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1459f1c2eddfSIdo Schimmel { 1460f1c2eddfSIdo Schimmel } 14616bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 14626bc506b4SIdo Schimmel 1463057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1464821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1465057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1466057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1467ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1468ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1469ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 14701da177e4SLinus Torvalds #endif 1471