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 2178b671779SNikolay Aleksandrov #define PG_SRC_ENT_LIMIT 32 2188b671779SNikolay Aleksandrov 2198b671779SNikolay Aleksandrov #define BR_SGRP_F_DELETE BIT(0) 2208b671779SNikolay Aleksandrov #define BR_SGRP_F_SEND BIT(1) 2218b671779SNikolay Aleksandrov 2228b671779SNikolay Aleksandrov struct net_bridge_group_src { 2238b671779SNikolay Aleksandrov struct hlist_node node; 2248b671779SNikolay Aleksandrov 2258b671779SNikolay Aleksandrov struct br_ip addr; 2268b671779SNikolay Aleksandrov struct net_bridge_port_group *pg; 2278b671779SNikolay Aleksandrov u8 flags; 228438ef2d0SNikolay Aleksandrov u8 src_query_rexmit_cnt; 2298b671779SNikolay Aleksandrov struct timer_list timer; 2308b671779SNikolay Aleksandrov 2318b671779SNikolay Aleksandrov struct net_bridge *br; 2328b671779SNikolay Aleksandrov struct hlist_node del_node; 2338b671779SNikolay Aleksandrov struct rcu_head rcu; 2348b671779SNikolay Aleksandrov }; 2358b671779SNikolay Aleksandrov 236eb1d1641SHerbert Xu struct net_bridge_port_group { 237eb1d1641SHerbert Xu struct net_bridge_port *port; 238e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 2398ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 240206e7323SThomas Martitz unsigned char eth_addr[ETH_ALEN] __aligned(2); 2419d06b6d8SElad Raz unsigned char flags; 2428b671779SNikolay Aleksandrov unsigned char filter_mode; 24342c11ccfSNikolay Aleksandrov unsigned char grp_query_rexmit_cnt; 2446ec0d0eeSNikolay Aleksandrov 2458b671779SNikolay Aleksandrov struct hlist_head src_list; 2468b671779SNikolay Aleksandrov unsigned int src_ents; 2476ec0d0eeSNikolay Aleksandrov struct timer_list timer; 24842c11ccfSNikolay Aleksandrov struct timer_list rexmit_timer; 2496ec0d0eeSNikolay Aleksandrov struct hlist_node mglist; 2506ec0d0eeSNikolay Aleksandrov 2516ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 252eb1d1641SHerbert Xu }; 253eb1d1641SHerbert Xu 2541c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_entry { 25519e3a9c9SNikolay Aleksandrov struct rhash_head rhnode; 256eb1d1641SHerbert Xu struct net_bridge *br; 257e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 2588ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 259ff0fd34eSAndrew Lunn bool host_joined; 2606ec0d0eeSNikolay Aleksandrov 2616ec0d0eeSNikolay Aleksandrov struct timer_list timer; 26219e3a9c9SNikolay Aleksandrov struct hlist_node mdb_node; 2636ec0d0eeSNikolay Aleksandrov 2646ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 265eb1d1641SHerbert Xu }; 266eb1d1641SHerbert Xu 2671f90c7f3SNikolay Aleksandrov struct net_bridge_port { 2681da177e4SLinus Torvalds struct net_bridge *br; 2691da177e4SLinus Torvalds struct net_device *dev; 2701da177e4SLinus Torvalds struct list_head list; 2711da177e4SLinus Torvalds 2721f90c7f3SNikolay Aleksandrov unsigned long flags; 2731f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 2741f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 2751f90c7f3SNikolay Aleksandrov #endif 2762756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 2771f90c7f3SNikolay Aleksandrov 2781da177e4SLinus Torvalds /* STP */ 2791da177e4SLinus Torvalds u8 priority; 2801da177e4SLinus Torvalds u8 state; 2811da177e4SLinus Torvalds u16 port_no; 2821da177e4SLinus Torvalds unsigned char topology_change_ack; 2831da177e4SLinus Torvalds unsigned char config_pending; 2841da177e4SLinus Torvalds port_id port_id; 2851da177e4SLinus Torvalds port_id designated_port; 2861da177e4SLinus Torvalds bridge_id designated_root; 2871da177e4SLinus Torvalds bridge_id designated_bridge; 2881da177e4SLinus Torvalds u32 path_cost; 2891da177e4SLinus Torvalds u32 designated_cost; 2900c03150eSstephen hemminger unsigned long designated_age; 2911da177e4SLinus Torvalds 2921da177e4SLinus Torvalds struct timer_list forward_delay_timer; 2931da177e4SLinus Torvalds struct timer_list hold_timer; 2941da177e4SLinus Torvalds struct timer_list message_age_timer; 2951da177e4SLinus Torvalds struct kobject kobj; 2961da177e4SLinus Torvalds struct rcu_head rcu; 2973982d3d2SFischer, Anna 298eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 29990010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 300cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 30190010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 302cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 303eb1d1641SHerbert Xu unsigned char multicast_router; 3041080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 305eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 306eb1d1641SHerbert Xu struct hlist_head mglist; 307eb1d1641SHerbert Xu struct hlist_node rlist; 308eb1d1641SHerbert Xu #endif 309e0f43752SSimon Arlott 310e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 311e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 312e0f43752SSimon Arlott #endif 31391d2c34aSHerbert Xu 31491d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 31591d2c34aSHerbert Xu struct netpoll *np; 31691d2c34aSHerbert Xu #endif 3176bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 3186bc506b4SIdo Schimmel int offload_fwd_mark; 3196bc506b4SIdo Schimmel #endif 3205af48b59SNikolay Aleksandrov u16 group_fwd_mask; 3212756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 322de179966SVivien Didelot 323de179966SVivien Didelot struct bridge_stp_xstats stp_xstats; 3241da177e4SLinus Torvalds }; 3251da177e4SLinus Torvalds 326705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 327705e0deaSTyler Hicks 328e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 329f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 330e028e4b8SVlad Yasevich 331b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 332b5ed54e9Sstephen hemminger { 333716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 334b5ed54e9Sstephen hemminger } 335b5ed54e9Sstephen hemminger 3361fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 337b5ed54e9Sstephen hemminger { 33835f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 339ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 340b5ed54e9Sstephen hemminger } 341b5ed54e9Sstephen hemminger 3420baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 3430baa10ffSArkadi Sharshevsky { 34435f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 3450baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3460baa10ffSArkadi Sharshevsky } 3470baa10ffSArkadi Sharshevsky 348ae75767eSNikolay Aleksandrov enum net_bridge_opts { 349ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 350ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 3518df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 3528df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 3538df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 354be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 35513cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 356675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 357675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 358675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 359675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 360c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 3613341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 3629163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 36370e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 3649c0ec2e7SMike Manning BROPT_VLAN_BRIDGE_BINDING, 365ae75767eSNikolay Aleksandrov }; 366ae75767eSNikolay Aleksandrov 3671f90c7f3SNikolay Aleksandrov struct net_bridge { 3681da177e4SLinus Torvalds spinlock_t lock; 3691f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 3701da177e4SLinus Torvalds struct list_head port_list; 3711da177e4SLinus Torvalds struct net_device *dev; 3728f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 373ae75767eSNikolay Aleksandrov unsigned long options; 3741f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3751f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3761f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3771f90c7f3SNikolay Aleksandrov u16 default_pvid; 3781f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3791f90c7f3SNikolay Aleksandrov #endif 3801f90c7f3SNikolay Aleksandrov 381eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 38234666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 383efb6de9bSBernhard Thaler union { 3844adf0af6SSimon Wunderlich struct rtable fake_rtable; 385efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 386efb6de9bSBernhard Thaler }; 3874adf0af6SSimon Wunderlich #endif 388515853ccSstephen hemminger u16 group_fwd_mask; 389f2808d22SToshiaki Makita u16 group_fwd_mask_required; 390515853ccSstephen hemminger 3911da177e4SLinus Torvalds /* STP */ 3921da177e4SLinus Torvalds bridge_id designated_root; 3931da177e4SLinus Torvalds bridge_id bridge_id; 3941f90c7f3SNikolay Aleksandrov unsigned char topology_change; 3951f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 3961f90c7f3SNikolay Aleksandrov u16 root_port; 3971da177e4SLinus Torvalds unsigned long max_age; 3981da177e4SLinus Torvalds unsigned long hello_time; 3991da177e4SLinus Torvalds unsigned long forward_delay; 4001da177e4SLinus Torvalds unsigned long ageing_time; 40134d8acd8SVivien Didelot unsigned long bridge_max_age; 4021da177e4SLinus Torvalds unsigned long bridge_hello_time; 4031da177e4SLinus Torvalds unsigned long bridge_forward_delay; 40434d8acd8SVivien Didelot unsigned long bridge_ageing_time; 40535750b0bSNikolay Aleksandrov u32 root_path_cost; 4061da177e4SLinus Torvalds 407fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 4089cde0708SStephen Hemminger 4099cde0708SStephen Hemminger enum { 4109cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 4119cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 4129cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 4139cde0708SStephen Hemminger } stp_enabled; 4149cde0708SStephen Hemminger 415eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 416eb1d1641SHerbert Xu 417eb1d1641SHerbert Xu u32 hash_max; 418eb1d1641SHerbert Xu 419eb1d1641SHerbert Xu u32 multicast_last_member_count; 420eb1d1641SHerbert Xu u32 multicast_startup_query_count; 421eb1d1641SHerbert Xu 4225e923585SNikolay Aleksandrov u8 multicast_igmp_version; 423675779adSNikolay Aleksandrov u8 multicast_router; 424675779adSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 425675779adSNikolay Aleksandrov u8 multicast_mld_version; 426675779adSNikolay Aleksandrov #endif 42735750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 428eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 429eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 430eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 431eb1d1641SHerbert Xu unsigned long multicast_query_interval; 432eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 433eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 434eb1d1641SHerbert Xu 43519e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 43619e3a9c9SNikolay Aleksandrov 4378b671779SNikolay Aleksandrov struct hlist_head src_gc_list; 43819e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 439eb1d1641SHerbert Xu struct hlist_head router_list; 440eb1d1641SHerbert Xu 441eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 44290010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 44390010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 444dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 4451080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 446cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 44790010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 44890010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 449dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 450cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 4518b671779SNikolay Aleksandrov struct work_struct src_gc_work; 452eb1d1641SHerbert Xu #endif 453eb1d1641SHerbert Xu 4541da177e4SLinus Torvalds struct timer_list hello_timer; 4551da177e4SLinus Torvalds struct timer_list tcn_timer; 4561da177e4SLinus Torvalds struct timer_list topology_change_timer; 457f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 45843b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 459e028e4b8SVlad Yasevich u32 auto_cnt; 4606bc506b4SIdo Schimmel 4616bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4626bc506b4SIdo Schimmel int offload_fwd_mark; 4636bc506b4SIdo Schimmel #endif 464eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4654b8d7d4cSHoratiu Vultur 4664b8d7d4cSHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 4679b14d1f8SHoratiu Vultur struct list_head mrp_list; 4684b8d7d4cSHoratiu Vultur #endif 4691da177e4SLinus Torvalds }; 4701da177e4SLinus Torvalds 47168b7c895SHerbert Xu struct br_input_skb_cb { 47268b7c895SHerbert Xu struct net_device *brdev; 47393fdd47eSHerbert Xu 4743c171f49SPablo Neira Ayuso u16 frag_max_size; 47532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 476f12064d1SFlorian Westphal u8 igmp; 477f12064d1SFlorian Westphal u8 mrouters_only:1; 47832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 479f12064d1SFlorian Westphal u8 proxyarp_replied:1; 480f12064d1SFlorian Westphal u8 src_port_isolated:1; 48120adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 482f12064d1SFlorian Westphal u8 vlan_filtered:1; 48320adfa1aSVlad Yasevich #endif 484223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 485223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 486223fd0adSFlorian Westphal #endif 4876bc506b4SIdo Schimmel 4886bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4896bc506b4SIdo Schimmel int offload_fwd_mark; 4906bc506b4SIdo Schimmel #endif 49168b7c895SHerbert Xu }; 49268b7c895SHerbert Xu 49368b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 49468b7c895SHerbert Xu 49532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 49632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 49732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 49832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 49932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 50032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 50128a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 50228a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 50328a16c97Sstephen hemminger 50428a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 50528a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 50628a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 50728a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 50828a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 50928a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 51028a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 51128a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 51228a16c97Sstephen hemminger 51328a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 51428a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 51528a16c97Sstephen hemminger 5161da177e4SLinus Torvalds /* called under bridge lock */ 5171da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 5181da177e4SLinus Torvalds { 5191da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 5201da177e4SLinus Torvalds } 5211da177e4SLinus Torvalds 5222594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 5232594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 5242594e906SNikolay Aleksandrov { 5252594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 5262594e906SNikolay Aleksandrov } 5272594e906SNikolay Aleksandrov 5282594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 5292594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 5302594e906SNikolay Aleksandrov { 5312594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 5322594e906SNikolay Aleksandrov } 5332594e906SNikolay Aleksandrov 5346be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 5352594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 5362594e906SNikolay Aleksandrov { 5372594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 5382594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 5392594e906SNikolay Aleksandrov return true; 5402594e906SNikolay Aleksandrov else 5412594e906SNikolay Aleksandrov return false; 5422594e906SNikolay Aleksandrov } 5432594e906SNikolay Aleksandrov 5442594e906SNikolay Aleksandrov return true; 5452594e906SNikolay Aleksandrov } 5462594e906SNikolay Aleksandrov 5475d1fcaf3SNikolay Aleksandrov static inline bool nbp_state_should_learn(const struct net_bridge_port *p) 5485d1fcaf3SNikolay Aleksandrov { 5495d1fcaf3SNikolay Aleksandrov return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; 5505d1fcaf3SNikolay Aleksandrov } 5515d1fcaf3SNikolay Aleksandrov 5528f4cc940SNikolay Aleksandrov static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack) 5535a46facbSNikolay Aleksandrov { 5548f4cc940SNikolay Aleksandrov bool ret = vid > 0 && vid < VLAN_VID_MASK; 5558f4cc940SNikolay Aleksandrov 5568f4cc940SNikolay Aleksandrov if (!ret) 5578f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid"); 5588f4cc940SNikolay Aleksandrov 5598f4cc940SNikolay Aleksandrov return ret; 5605a46facbSNikolay Aleksandrov } 5615a46facbSNikolay Aleksandrov 5625a46facbSNikolay Aleksandrov static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, 5638f4cc940SNikolay Aleksandrov const struct bridge_vlan_info *last, 5648f4cc940SNikolay Aleksandrov struct netlink_ext_ack *extack) 5655a46facbSNikolay Aleksandrov { 5665a46facbSNikolay Aleksandrov /* pvid flag is not allowed in ranges */ 5678f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_PVID) { 5688f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range"); 5695a46facbSNikolay Aleksandrov return false; 5708f4cc940SNikolay Aleksandrov } 5715a46facbSNikolay Aleksandrov 5725a46facbSNikolay Aleksandrov /* when cur is the range end, check if: 5735a46facbSNikolay Aleksandrov * - it has range start flag 5745a46facbSNikolay Aleksandrov * - range ids are invalid (end is equal to or before start) 5755a46facbSNikolay Aleksandrov */ 5765a46facbSNikolay Aleksandrov if (last) { 5778f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { 5788f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one"); 5795a46facbSNikolay Aleksandrov return false; 5808f4cc940SNikolay Aleksandrov } else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) { 5818f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing"); 5828f4cc940SNikolay Aleksandrov return false; 5838f4cc940SNikolay Aleksandrov } else if (cur->vid <= last->vid) { 5848f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); 5858f4cc940SNikolay Aleksandrov return false; 5868f4cc940SNikolay Aleksandrov } 5878f4cc940SNikolay Aleksandrov } 5888f4cc940SNikolay Aleksandrov 5898f4cc940SNikolay Aleksandrov /* check for required range flags */ 5908f4cc940SNikolay Aleksandrov if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 5918f4cc940SNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END))) { 5928f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing"); 5935a46facbSNikolay Aleksandrov return false; 5945a46facbSNikolay Aleksandrov } 5955a46facbSNikolay Aleksandrov 5965a46facbSNikolay Aleksandrov return true; 5975a46facbSNikolay Aleksandrov } 5985a46facbSNikolay Aleksandrov 599f545923bSNikolay Aleksandrov static inline int br_afspec_cmd_to_rtm(int cmd) 600f545923bSNikolay Aleksandrov { 601f545923bSNikolay Aleksandrov switch (cmd) { 602f545923bSNikolay Aleksandrov case RTM_SETLINK: 603f545923bSNikolay Aleksandrov return RTM_NEWVLAN; 604f545923bSNikolay Aleksandrov case RTM_DELLINK: 605f545923bSNikolay Aleksandrov return RTM_DELVLAN; 606f545923bSNikolay Aleksandrov } 607f545923bSNikolay Aleksandrov 608f545923bSNikolay Aleksandrov return 0; 609f545923bSNikolay Aleksandrov } 610f545923bSNikolay Aleksandrov 611ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 612ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 613ae75767eSNikolay Aleksandrov { 614ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 615ae75767eSNikolay Aleksandrov } 616ae75767eSNikolay Aleksandrov 617a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 618a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 619a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 620a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 621a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 622a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 623a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 624a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 625ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 626ae75767eSNikolay Aleksandrov 6271da177e4SLinus Torvalds /* br_device.c */ 628348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 629348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 630348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 631cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 63291d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 63391d2c34aSHerbert Xu struct sk_buff *skb) 63491d2c34aSHerbert Xu { 635f78ed220SEric Dumazet netpoll_send_skb(p->np, skb); 63691d2c34aSHerbert Xu } 63791d2c34aSHerbert Xu 638a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 639348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 64091d2c34aSHerbert Xu #else 6419f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 64291d2c34aSHerbert Xu struct sk_buff *skb) 64391d2c34aSHerbert Xu { 64491d2c34aSHerbert Xu } 64591d2c34aSHerbert Xu 646a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 64791d2c34aSHerbert Xu { 64891d2c34aSHerbert Xu return 0; 64991d2c34aSHerbert Xu } 65091d2c34aSHerbert Xu 65191d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 65291d2c34aSHerbert Xu { 65391d2c34aSHerbert Xu } 654cfb478daSstephen hemminger #endif 6551da177e4SLinus Torvalds 6561da177e4SLinus Torvalds /* br_fdb.c */ 657348662a1SJoe Perches int br_fdb_init(void); 658348662a1SJoe Perches void br_fdb_fini(void); 659eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 660eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 661348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 662424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 663424bb9c9SToshiaki Makita const struct net_bridge_port *p, 664424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 665348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 666348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 667f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 668348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 6691ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 670bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 671bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 672bfd0aeacSNikolay Aleksandrov __u16 vid); 673348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 674348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 675348662a1SJoe Perches unsigned long off); 676348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 677348662a1SJoe Perches const unsigned char *addr, u16 vid); 678348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 679be0c5677SNikolay Aleksandrov const unsigned char *addr, u16 vid, unsigned long flags); 68077162022SJohn Fastabend 681348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 682f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 683348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 68487b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 68587b0984eSPetr Machata struct netlink_ext_ack *extack); 686348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 687d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 68847674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 68947674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 69047674562SRoopa Prabhu struct netlink_ext_ack *extack); 6918db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 6928db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 6933aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 694161d82deSPetr Machata const unsigned char *addr, u16 vid, 695161d82deSPetr Machata bool swdev_notify); 6963aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 697161d82deSPetr Machata const unsigned char *addr, u16 vid, 698161d82deSPetr Machata bool swdev_notify); 6999fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 700e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 7011da177e4SLinus Torvalds 7021da177e4SLinus Torvalds /* br_forward.c */ 7038addd5e7SNikolay Aleksandrov enum br_pkt_type { 7048addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 7058addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 7068addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 7078addd5e7SNikolay Aleksandrov }; 7080c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 709b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 71037b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 7110c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 71237b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 7138addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 7141da177e4SLinus Torvalds 7157d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 7167d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 7177d850abdSNikolay Aleksandrov const struct sk_buff *skb) 7187d850abdSNikolay Aleksandrov { 7197d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 7207d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 7217d850abdSNikolay Aleksandrov } 7227d850abdSNikolay Aleksandrov 7231da177e4SLinus Torvalds /* br_if.c */ 724faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 725348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 726348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 727ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 728ca752be0SDavid Ahern struct netlink_ext_ack *extack); 729348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 730804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 731348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 732c8f44affSMichał Mirosław netdev_features_t features); 733e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 7342796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 7352756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 7361da177e4SLinus Torvalds 7371da177e4SLinus Torvalds /* br_input.c */ 7380c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 7399eb8eff0SVladimir Oltean rx_handler_func_t *br_get_rx_handler(const struct net_device *dev); 7401da177e4SLinus Torvalds 741859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 742859828c0SJiri Pirko { 7439eb8eff0SVladimir Oltean return rcu_dereference(dev->rx_handler) == br_get_rx_handler(dev); 744859828c0SJiri Pirko } 745859828c0SJiri Pirko 7464d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 7474d4fd361SPetr Machata { 7489eb8eff0SVladimir Oltean return rcu_dereference_rtnl(dev->rx_handler) == br_get_rx_handler(dev); 7494d4fd361SPetr Machata } 7504d4fd361SPetr Machata 751859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 752859828c0SJiri Pirko { 753859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 754859828c0SJiri Pirko } 755859828c0SJiri Pirko 7564d4fd361SPetr Machata static inline struct net_bridge_port * 7574d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 7584d4fd361SPetr Machata { 7594d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 7604d4fd361SPetr Machata } 7614d4fd361SPetr Machata 7621da177e4SLinus Torvalds /* br_ioctl.c */ 763348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 764348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 765348662a1SJoe Perches void __user *arg); 7661da177e4SLinus Torvalds 767eb1d1641SHerbert Xu /* br_multicast.c */ 768eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 769348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 770fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 771348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 772eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 7731080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 774348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 775348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 776348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 777348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 778348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 779348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 780e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 78137b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 78237b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 783348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 784348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 785348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 786348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 787348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 7885e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 789aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 790aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 791aa2ae3e7SNikolay Aleksandrov #endif 792348662a1SJoe Perches struct net_bridge_mdb_entry * 79319e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 794348662a1SJoe Perches struct net_bridge_mdb_entry * 79519e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 796348662a1SJoe Perches struct net_bridge_port_group * 797348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 798762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 7998b671779SNikolay Aleksandrov unsigned char flags, const unsigned char *src, 8008b671779SNikolay Aleksandrov u8 filter_mode); 80119e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 80219e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 80345ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 80445ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 805949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 806949f1e39SSatish Ashok int type); 807681590bdSNikolay Aleksandrov void br_multicast_del_pg(struct net_bridge_mdb_entry *mp, 808681590bdSNikolay Aleksandrov struct net_bridge_port_group *pg, 809681590bdSNikolay Aleksandrov struct net_bridge_port_group __rcu **pp); 8101080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 811a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 8121080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 813b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 8141080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 8151080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 8161080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 81719e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 81819e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 8191bc844eeSNikolay Aleksandrov void br_multicast_host_join(struct net_bridge_mdb_entry *mp, bool notify); 8201bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 82185b35269SSridhar Samudrala 822cfd56754SCong Wang #define mlock_dereference(X, br) \ 823cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 824cfd56754SCong Wang 82585b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 82685b35269SSridhar Samudrala { 82785b35269SSridhar Samudrala return br->multicast_router == 2 || 82885b35269SSridhar Samudrala (br->multicast_router == 1 && 82985b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 83085b35269SSridhar Samudrala } 831b00589afSLinus Lüssing 832cc0fdd80SLinus Lüssing static inline bool 833cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 8340888d5f3Sdaniel struct bridge_mcast_other_query *querier, 8350888d5f3Sdaniel const bool is_ipv6) 836b00589afSLinus Lüssing { 8370888d5f3Sdaniel bool own_querier_enabled; 8380888d5f3Sdaniel 839675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 840675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 8410888d5f3Sdaniel own_querier_enabled = false; 8420888d5f3Sdaniel else 8430888d5f3Sdaniel own_querier_enabled = true; 8440888d5f3Sdaniel } else { 8450888d5f3Sdaniel own_querier_enabled = false; 8460888d5f3Sdaniel } 8470888d5f3Sdaniel 848cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 8490888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 850cc0fdd80SLinus Lüssing } 851cc0fdd80SLinus Lüssing 852cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 853cc0fdd80SLinus Lüssing struct ethhdr *eth) 854cc0fdd80SLinus Lüssing { 855cc0fdd80SLinus Lüssing switch (eth->h_proto) { 856cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 8570888d5f3Sdaniel return __br_multicast_querier_exists(br, 8580888d5f3Sdaniel &br->ip4_other_query, false); 859cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 860cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 8610888d5f3Sdaniel return __br_multicast_querier_exists(br, 8620888d5f3Sdaniel &br->ip6_other_query, true); 863cc0fdd80SLinus Lüssing #endif 864cc0fdd80SLinus Lüssing default: 865cc0fdd80SLinus Lüssing return false; 866cc0fdd80SLinus Lüssing } 867b00589afSLinus Lüssing } 8681080ab95SNikolay Aleksandrov 8691080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 8701080ab95SNikolay Aleksandrov { 8711080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 8721080ab95SNikolay Aleksandrov } 87342c11ccfSNikolay Aleksandrov 87442c11ccfSNikolay Aleksandrov static inline unsigned long br_multicast_lmqt(const struct net_bridge *br) 87542c11ccfSNikolay Aleksandrov { 87642c11ccfSNikolay Aleksandrov return br->multicast_last_member_interval * 87742c11ccfSNikolay Aleksandrov br->multicast_last_member_count; 87842c11ccfSNikolay Aleksandrov } 879eb1d1641SHerbert Xu #else 880eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 881eb1d1641SHerbert Xu struct net_bridge_port *port, 88206499098SVlad Yasevich struct sk_buff *skb, 88306499098SVlad Yasevich u16 vid) 884eb1d1641SHerbert Xu { 885eb1d1641SHerbert Xu return 0; 886eb1d1641SHerbert Xu } 887eb1d1641SHerbert Xu 888eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 889fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 890eb1d1641SHerbert Xu { 891eb1d1641SHerbert Xu return NULL; 892eb1d1641SHerbert Xu } 893eb1d1641SHerbert Xu 8941080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 895eb1d1641SHerbert Xu { 8961080ab95SNikolay Aleksandrov return 0; 897eb1d1641SHerbert Xu } 898eb1d1641SHerbert Xu 899eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 900eb1d1641SHerbert Xu { 901eb1d1641SHerbert Xu } 902eb1d1641SHerbert Xu 903eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 904eb1d1641SHerbert Xu { 905eb1d1641SHerbert Xu } 906eb1d1641SHerbert Xu 907eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 908eb1d1641SHerbert Xu { 909eb1d1641SHerbert Xu } 910eb1d1641SHerbert Xu 911eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 912eb1d1641SHerbert Xu { 913eb1d1641SHerbert Xu } 914eb1d1641SHerbert Xu 915eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 916eb1d1641SHerbert Xu { 917eb1d1641SHerbert Xu } 918eb1d1641SHerbert Xu 919eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 920eb1d1641SHerbert Xu { 921eb1d1641SHerbert Xu } 9225cb5e947SHerbert Xu 923a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 924a7ce45a7SNikolay Aleksandrov { 925a7ce45a7SNikolay Aleksandrov } 926a7ce45a7SNikolay Aleksandrov 92737b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 92837b090e6SNikolay Aleksandrov struct sk_buff *skb, 92937b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 9305cb5e947SHerbert Xu { 9315cb5e947SHerbert Xu } 9325cb5e947SHerbert Xu 933eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 934eb1d1641SHerbert Xu { 93503aaa9e2SGustavo A. R. Silva return false; 936eb1d1641SHerbert Xu } 93737b090e6SNikolay Aleksandrov 938cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 939cc0fdd80SLinus Lüssing struct ethhdr *eth) 940b00589afSLinus Lüssing { 941b00589afSLinus Lüssing return false; 942b00589afSLinus Lüssing } 94337b090e6SNikolay Aleksandrov 944fdb184d1SRami Rosen static inline void br_mdb_init(void) 945fdb184d1SRami Rosen { 946fdb184d1SRami Rosen } 94737b090e6SNikolay Aleksandrov 948fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 949fdb184d1SRami Rosen { 950fdb184d1SRami Rosen } 9511080ab95SNikolay Aleksandrov 95219e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 95319e3a9c9SNikolay Aleksandrov { 95419e3a9c9SNikolay Aleksandrov return 0; 95519e3a9c9SNikolay Aleksandrov } 95619e3a9c9SNikolay Aleksandrov 95719e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 95819e3a9c9SNikolay Aleksandrov { 95919e3a9c9SNikolay Aleksandrov } 96019e3a9c9SNikolay Aleksandrov 9611080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 9621080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 963a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 964a65056ecSNikolay Aleksandrov u8 type, u8 dir) 9651080ab95SNikolay Aleksandrov { 9661080ab95SNikolay Aleksandrov } 9671080ab95SNikolay Aleksandrov 9681080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 9691080ab95SNikolay Aleksandrov { 9701080ab95SNikolay Aleksandrov return 0; 9711080ab95SNikolay Aleksandrov } 9721080ab95SNikolay Aleksandrov 973b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 974b6fe0440SIdo Schimmel { 975b6fe0440SIdo Schimmel } 976b6fe0440SIdo Schimmel 9771080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 9781080ab95SNikolay Aleksandrov { 9791080ab95SNikolay Aleksandrov return 0; 9801080ab95SNikolay Aleksandrov } 98185b35269SSridhar Samudrala #endif 982eb1d1641SHerbert Xu 983243a2e63SVlad Yasevich /* br_vlan.c */ 984243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 98577751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 98677751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 987a580c76dSNikolay Aleksandrov u16 *vid, u8 *state); 98877751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 98985f46c6bSVlad Yasevich const struct sk_buff *skb); 990e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 991348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 99211538d03SRoopa Prabhu const struct net_bridge_port *port, 9932594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 99478851988SVlad Yasevich struct sk_buff *skb); 995f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 996169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 997348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 998348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 9992594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 1000204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 1001a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 1002348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 1003d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 1004204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 10056dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 10069163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 10075be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 100896a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 1009169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 1010169327d5SPetr Machata struct netlink_ext_ack *extack); 1011f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1012169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1013348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 1014348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 1015169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 10162594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 1017a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 1018a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 10199c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 1020091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 10219c0ec2e7SMike Manning void *ptr); 10228dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void); 10238dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void); 1024cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 1025cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1026cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1027cf5bddb9SNikolay Aleksandrov int cmd); 1028a5d29ae2SNikolay Aleksandrov bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1029a5d29ae2SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 1030a37b85c9SVlad Yasevich 10312594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 1032a37b85c9SVlad Yasevich const struct net_bridge *br) 1033a37b85c9SVlad Yasevich { 1034907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 1035a37b85c9SVlad Yasevich } 1036a37b85c9SVlad Yasevich 10372594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 1038a37b85c9SVlad Yasevich const struct net_bridge_port *p) 1039a37b85c9SVlad Yasevich { 1040907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 1041907b1e6eSNikolay Aleksandrov } 1042907b1e6eSNikolay Aleksandrov 1043907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1044907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1045907b1e6eSNikolay Aleksandrov { 1046907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 1047907b1e6eSNikolay Aleksandrov } 1048907b1e6eSNikolay Aleksandrov 1049907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1050907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1051907b1e6eSNikolay Aleksandrov { 1052907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 1053a37b85c9SVlad Yasevich } 1054a37b85c9SVlad Yasevich 1055a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 1056a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 1057a37b85c9SVlad Yasevich */ 1058a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 1059a37b85c9SVlad Yasevich { 1060a37b85c9SVlad Yasevich int err = 0; 1061a37b85c9SVlad Yasevich 10622594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 10635978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 10642594e906SNikolay Aleksandrov } else { 1065a37b85c9SVlad Yasevich *vid = 0; 1066a37b85c9SVlad Yasevich err = -EINVAL; 1067a37b85c9SVlad Yasevich } 1068a37b85c9SVlad Yasevich 1069a37b85c9SVlad Yasevich return err; 1070a37b85c9SVlad Yasevich } 107178851988SVlad Yasevich 107277751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 107378851988SVlad Yasevich { 107477751ee8SNikolay Aleksandrov if (!vg) 10755be5a2dfSVlad Yasevich return 0; 10765be5a2dfSVlad Yasevich 107778851988SVlad Yasevich smp_rmb(); 107877751ee8SNikolay Aleksandrov return vg->pvid; 107978851988SVlad Yasevich } 108078851988SVlad Yasevich 10818dcea187SNikolay Aleksandrov static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) 10828dcea187SNikolay Aleksandrov { 10838dcea187SNikolay Aleksandrov return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags; 10848dcea187SNikolay Aleksandrov } 1085243a2e63SVlad Yasevich #else 108677751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 108777751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 10882594e906SNikolay Aleksandrov struct sk_buff *skb, 1089a580c76dSNikolay Aleksandrov u16 *vid, u8 *state) 10902594e906SNikolay Aleksandrov { 10912594e906SNikolay Aleksandrov return true; 10922594e906SNikolay Aleksandrov } 10932594e906SNikolay Aleksandrov 10942594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 109585f46c6bSVlad Yasevich const struct sk_buff *skb) 109685f46c6bSVlad Yasevich { 109785f46c6bSVlad Yasevich return true; 109885f46c6bSVlad Yasevich } 109985f46c6bSVlad Yasevich 1100e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 1101e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 1102e0d7968aSToshiaki Makita { 1103e0d7968aSToshiaki Makita return true; 1104e0d7968aSToshiaki Makita } 1105e0d7968aSToshiaki Makita 110678851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 110711538d03SRoopa Prabhu const struct net_bridge_port *port, 11082594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 110978851988SVlad Yasevich struct sk_buff *skb) 111078851988SVlad Yasevich { 111178851988SVlad Yasevich return skb; 111278851988SVlad Yasevich } 111378851988SVlad Yasevich 1114f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1115169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1116243a2e63SVlad Yasevich { 1117f418af63SNikolay Aleksandrov *changed = false; 1118243a2e63SVlad Yasevich return -EOPNOTSUPP; 1119243a2e63SVlad Yasevich } 1120243a2e63SVlad Yasevich 1121243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 1122243a2e63SVlad Yasevich { 1123243a2e63SVlad Yasevich return -EOPNOTSUPP; 1124243a2e63SVlad Yasevich } 1125243a2e63SVlad Yasevich 1126243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1127243a2e63SVlad Yasevich { 1128243a2e63SVlad Yasevich } 1129243a2e63SVlad Yasevich 1130204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1131204177f3SToshiaki Makita { 1132204177f3SToshiaki Makita } 1133204177f3SToshiaki Makita 11345be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 11358580e211SToshiaki Makita { 11365be5a2dfSVlad Yasevich return 0; 11378580e211SToshiaki Makita } 11388580e211SToshiaki Makita 1139f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1140169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1141243a2e63SVlad Yasevich { 1142f418af63SNikolay Aleksandrov *changed = false; 1143243a2e63SVlad Yasevich return -EOPNOTSUPP; 1144243a2e63SVlad Yasevich } 1145243a2e63SVlad Yasevich 1146243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1147243a2e63SVlad Yasevich { 1148243a2e63SVlad Yasevich return -EOPNOTSUPP; 1149243a2e63SVlad Yasevich } 1150243a2e63SVlad Yasevich 1151243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1152243a2e63SVlad Yasevich { 1153243a2e63SVlad Yasevich } 1154243a2e63SVlad Yasevich 11552594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 11562594e906SNikolay Aleksandrov u16 vid) 1157a37b85c9SVlad Yasevich { 1158a37b85c9SVlad Yasevich return NULL; 1159a37b85c9SVlad Yasevich } 1160bc9a25d2SVlad Yasevich 1161169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1162169327d5SPetr Machata struct netlink_ext_ack *extack) 11635be5a2dfSVlad Yasevich { 11645be5a2dfSVlad Yasevich return 0; 11655be5a2dfSVlad Yasevich } 11665be5a2dfSVlad Yasevich 116778851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1168a37b85c9SVlad Yasevich { 1169a37b85c9SVlad Yasevich return 0; 1170a37b85c9SVlad Yasevich } 11712594e906SNikolay Aleksandrov 117277751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 117378851988SVlad Yasevich { 11743df6bf45SVlad Yasevich return 0; 117578851988SVlad Yasevich } 11762796d0c6SVlad Yasevich 1177a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1178a7854037SNikolay Aleksandrov unsigned long val) 1179a7854037SNikolay Aleksandrov { 1180a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1181a7854037SNikolay Aleksandrov } 11822594e906SNikolay Aleksandrov 11832594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 11842594e906SNikolay Aleksandrov u32 filter_mask) 11852594e906SNikolay Aleksandrov { 11862594e906SNikolay Aleksandrov return 0; 11872594e906SNikolay Aleksandrov } 11882594e906SNikolay Aleksandrov 11892594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 11902594e906SNikolay Aleksandrov const struct net_bridge *br) 11912594e906SNikolay Aleksandrov { 11922594e906SNikolay Aleksandrov return NULL; 11932594e906SNikolay Aleksandrov } 11942594e906SNikolay Aleksandrov 11952594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 11962594e906SNikolay Aleksandrov const struct net_bridge_port *p) 11972594e906SNikolay Aleksandrov { 11982594e906SNikolay Aleksandrov return NULL; 11992594e906SNikolay Aleksandrov } 1200907b1e6eSNikolay Aleksandrov 1201907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1202907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1203907b1e6eSNikolay Aleksandrov { 1204907b1e6eSNikolay Aleksandrov return NULL; 1205907b1e6eSNikolay Aleksandrov } 1206907b1e6eSNikolay Aleksandrov 1207907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1208907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1209907b1e6eSNikolay Aleksandrov { 1210907b1e6eSNikolay Aleksandrov return NULL; 1211907b1e6eSNikolay Aleksandrov } 1212a60c0903SNikolay Aleksandrov 1213a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1214a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1215a60c0903SNikolay Aleksandrov { 1216a60c0903SNikolay Aleksandrov } 12179c0ec2e7SMike Manning 12189c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 12199c0ec2e7SMike Manning unsigned long event) 12209c0ec2e7SMike Manning { 12219c0ec2e7SMike Manning } 12229c0ec2e7SMike Manning 1223091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 12249c0ec2e7SMike Manning unsigned long event, void *ptr) 12259c0ec2e7SMike Manning { 1226091adf9bSNikolay Aleksandrov return 0; 12279c0ec2e7SMike Manning } 12288dcea187SNikolay Aleksandrov 12298dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_init(void) 12308dcea187SNikolay Aleksandrov { 12318dcea187SNikolay Aleksandrov } 12328dcea187SNikolay Aleksandrov 12338dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_uninit(void) 12348dcea187SNikolay Aleksandrov { 12358dcea187SNikolay Aleksandrov } 1236cf5bddb9SNikolay Aleksandrov 1237cf5bddb9SNikolay Aleksandrov static inline void br_vlan_notify(const struct net_bridge *br, 1238cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1239cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1240cf5bddb9SNikolay Aleksandrov int cmd) 1241cf5bddb9SNikolay Aleksandrov { 1242cf5bddb9SNikolay Aleksandrov } 1243528ae84aSNikolay Aleksandrov 1244528ae84aSNikolay Aleksandrov static inline bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1245528ae84aSNikolay Aleksandrov const struct net_bridge_vlan *range_end) 1246528ae84aSNikolay Aleksandrov { 1247528ae84aSNikolay Aleksandrov return true; 1248528ae84aSNikolay Aleksandrov } 1249243a2e63SVlad Yasevich #endif 1250243a2e63SVlad Yasevich 12517a53e718SNikolay Aleksandrov /* br_vlan_options.c */ 12527a53e718SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 125399f7c5e0SNikolay Aleksandrov bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, 125499f7c5e0SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 12557a53e718SNikolay Aleksandrov bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v); 12567a53e718SNikolay Aleksandrov size_t br_vlan_opts_nl_size(void); 1257a5d29ae2SNikolay Aleksandrov int br_vlan_process_options(const struct net_bridge *br, 1258a5d29ae2SNikolay Aleksandrov const struct net_bridge_port *p, 1259a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_start, 1260a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_end, 1261a5d29ae2SNikolay Aleksandrov struct nlattr **tb, 1262a5d29ae2SNikolay Aleksandrov struct netlink_ext_ack *extack); 1263a580c76dSNikolay Aleksandrov 1264a580c76dSNikolay Aleksandrov /* vlan state manipulation helpers using *_ONCE to annotate lock-free access */ 1265a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v) 1266a580c76dSNikolay Aleksandrov { 1267a580c76dSNikolay Aleksandrov return READ_ONCE(v->state); 1268a580c76dSNikolay Aleksandrov } 1269a580c76dSNikolay Aleksandrov 1270a580c76dSNikolay Aleksandrov static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state) 1271a580c76dSNikolay Aleksandrov { 1272a580c76dSNikolay Aleksandrov WRITE_ONCE(v->state, state); 1273a580c76dSNikolay Aleksandrov } 1274a580c76dSNikolay Aleksandrov 1275a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg) 1276a580c76dSNikolay Aleksandrov { 1277a580c76dSNikolay Aleksandrov return READ_ONCE(vg->pvid_state); 1278a580c76dSNikolay Aleksandrov } 1279a580c76dSNikolay Aleksandrov 1280a580c76dSNikolay Aleksandrov static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg, 1281a580c76dSNikolay Aleksandrov u8 state) 1282a580c76dSNikolay Aleksandrov { 1283a580c76dSNikolay Aleksandrov WRITE_ONCE(vg->pvid_state, state); 1284a580c76dSNikolay Aleksandrov } 1285a580c76dSNikolay Aleksandrov 1286a580c76dSNikolay Aleksandrov /* learn_allow is true at ingress and false at egress */ 1287a580c76dSNikolay Aleksandrov static inline bool br_vlan_state_allowed(u8 state, bool learn_allow) 1288a580c76dSNikolay Aleksandrov { 1289a580c76dSNikolay Aleksandrov switch (state) { 1290a580c76dSNikolay Aleksandrov case BR_STATE_LEARNING: 1291a580c76dSNikolay Aleksandrov return learn_allow; 1292a580c76dSNikolay Aleksandrov case BR_STATE_FORWARDING: 1293a580c76dSNikolay Aleksandrov return true; 1294a580c76dSNikolay Aleksandrov default: 1295a580c76dSNikolay Aleksandrov return false; 1296a580c76dSNikolay Aleksandrov } 1297a580c76dSNikolay Aleksandrov } 12987a53e718SNikolay Aleksandrov #endif 12997a53e718SNikolay Aleksandrov 13001a4ba64dSPablo Neira Ayuso struct nf_br_ops { 13011a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 13021a4ba64dSPablo Neira Ayuso }; 13031a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 13041a4ba64dSPablo Neira Ayuso 13051da177e4SLinus Torvalds /* br_netfilter.c */ 130634666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 130734666d46SPablo Neira Ayuso int br_nf_core_init(void); 130834666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1309348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1310c0909713SStephen Hemminger #else 131134666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 131234666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 13134adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1314c0909713SStephen Hemminger #endif 13151da177e4SLinus Torvalds 13161da177e4SLinus Torvalds /* br_stp.c */ 1317775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1318348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1319348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1320348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 13211da177e4SLinus Torvalds 1322348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1323348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1324348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1325348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 132682dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 13279e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 132814f98f25Sstephen hemminger 132914f98f25Sstephen hemminger 13301da177e4SLinus Torvalds /* br_stp_if.c */ 1331348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1332348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1333419dba8aSHoratiu Vultur int br_stp_set_enabled(struct net_bridge *br, unsigned long val, 1334419dba8aSHoratiu Vultur struct netlink_ext_ack *extack); 1335348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1336348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1337348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1338348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1339348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1340348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1341348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1342348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 13431da177e4SLinus Torvalds 13441da177e4SLinus Torvalds /* br_stp_bpdu.c */ 13457c85fbf0SPatrick McHardy struct stp_proto; 1346348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 13477c85fbf0SPatrick McHardy struct net_device *dev); 13481da177e4SLinus Torvalds 13491da177e4SLinus Torvalds /* br_stp_timer.c */ 1350348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1351348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1352348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 13531da177e4SLinus Torvalds 13541da177e4SLinus Torvalds /* br.c */ 1355e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1356da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1357da678292SMichał Mirosław #endif 13581da177e4SLinus Torvalds 135965369933SHoratiu Vultur /* br_mrp.c */ 136065369933SHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 136165369933SHoratiu Vultur int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 136265369933SHoratiu Vultur struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 136365369933SHoratiu Vultur int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb); 136465369933SHoratiu Vultur bool br_mrp_enabled(struct net_bridge *br); 136565369933SHoratiu Vultur void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p); 1366df42ef22SHoratiu Vultur int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br); 136765369933SHoratiu Vultur #else 136865369933SHoratiu Vultur static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 136965369933SHoratiu Vultur struct nlattr *attr, int cmd, 137065369933SHoratiu Vultur struct netlink_ext_ack *extack) 137165369933SHoratiu Vultur { 137265369933SHoratiu Vultur return -EOPNOTSUPP; 137365369933SHoratiu Vultur } 137465369933SHoratiu Vultur 137565369933SHoratiu Vultur static inline int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb) 137665369933SHoratiu Vultur { 137765369933SHoratiu Vultur return 0; 137865369933SHoratiu Vultur } 137965369933SHoratiu Vultur 138065369933SHoratiu Vultur static inline bool br_mrp_enabled(struct net_bridge *br) 138165369933SHoratiu Vultur { 13828741e184SJason Yan return false; 138365369933SHoratiu Vultur } 138465369933SHoratiu Vultur 138565369933SHoratiu Vultur static inline void br_mrp_port_del(struct net_bridge *br, 138665369933SHoratiu Vultur struct net_bridge_port *p) 138765369933SHoratiu Vultur { 138865369933SHoratiu Vultur } 1389df42ef22SHoratiu Vultur 1390df42ef22SHoratiu Vultur static inline int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br) 1391df42ef22SHoratiu Vultur { 1392df42ef22SHoratiu Vultur return 0; 1393df42ef22SHoratiu Vultur } 1394df42ef22SHoratiu Vultur 139565369933SHoratiu Vultur #endif 139665369933SHoratiu Vultur 139711dc1f36SStephen Hemminger /* br_netlink.c */ 1398149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1399348662a1SJoe Perches int br_netlink_init(void); 1400348662a1SJoe Perches void br_netlink_fini(void); 140192899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 140292899063SNikolay Aleksandrov const struct net_bridge_port *port); 14032fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 14042fd527b7SPetr Machata struct netlink_ext_ack *extack); 1405add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1406348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 140746c264daSNicolas Dichtel u32 filter_mask, int nlflags); 1408f26b2965SNikolay Aleksandrov int br_process_vlan_info(struct net_bridge *br, 1409f26b2965SNikolay Aleksandrov struct net_bridge_port *p, int cmd, 1410f26b2965SNikolay Aleksandrov struct bridge_vlan_info *vinfo_curr, 1411f26b2965SNikolay Aleksandrov struct bridge_vlan_info **vinfo_last, 1412f26b2965SNikolay Aleksandrov bool *changed, 1413f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack); 141411dc1f36SStephen Hemminger 14151da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 14161da177e4SLinus Torvalds /* br_sysfs_if.c */ 141752cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1418348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1419348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 14201da177e4SLinus Torvalds 14211da177e4SLinus Torvalds /* br_sysfs_br.c */ 1422348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1423348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 14241da177e4SLinus Torvalds 14251da177e4SLinus Torvalds #else 14261da177e4SLinus Torvalds 14270cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 14280cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 14290cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 14300cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 14311da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 14321da177e4SLinus Torvalds 14336bc506b4SIdo Schimmel /* br_switchdev.c */ 14346bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 14356bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 14366bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 14376bc506b4SIdo Schimmel struct sk_buff *skb); 14386bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 14396bc506b4SIdo Schimmel const struct sk_buff *skb); 14403922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 14413922285dSArkadi Sharshevsky unsigned long flags, 14423922285dSArkadi Sharshevsky unsigned long mask); 14436b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 14446b26b51bSArkadi Sharshevsky int type); 1445169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1446169327d5SPetr Machata struct netlink_ext_ack *extack); 1447d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1448f1c2eddfSIdo Schimmel 1449f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1450f1c2eddfSIdo Schimmel { 1451f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1452f1c2eddfSIdo Schimmel } 14536bc506b4SIdo Schimmel #else 14546bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 14556bc506b4SIdo Schimmel { 14566bc506b4SIdo Schimmel return 0; 14576bc506b4SIdo Schimmel } 14586bc506b4SIdo Schimmel 14596bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 14606bc506b4SIdo Schimmel struct sk_buff *skb) 14616bc506b4SIdo Schimmel { 14626bc506b4SIdo Schimmel } 14636bc506b4SIdo Schimmel 14646bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 14656bc506b4SIdo Schimmel const struct sk_buff *skb) 14666bc506b4SIdo Schimmel { 14676bc506b4SIdo Schimmel return true; 14686bc506b4SIdo Schimmel } 14693922285dSArkadi Sharshevsky 14703922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 14713922285dSArkadi Sharshevsky unsigned long flags, 14723922285dSArkadi Sharshevsky unsigned long mask) 14733922285dSArkadi Sharshevsky { 14743922285dSArkadi Sharshevsky return 0; 14753922285dSArkadi Sharshevsky } 14766b26b51bSArkadi Sharshevsky 1477d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1478169327d5SPetr Machata u16 vid, u16 flags, 1479169327d5SPetr Machata struct netlink_ext_ack *extack) 1480d66e4348SPetr Machata { 1481d66e4348SPetr Machata return -EOPNOTSUPP; 1482d66e4348SPetr Machata } 1483d66e4348SPetr Machata 1484d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1485d66e4348SPetr Machata { 1486d66e4348SPetr Machata return -EOPNOTSUPP; 1487d66e4348SPetr Machata } 1488d66e4348SPetr Machata 14896b26b51bSArkadi Sharshevsky static inline void 14906b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 14916b26b51bSArkadi Sharshevsky { 14926b26b51bSArkadi Sharshevsky } 1493f1c2eddfSIdo Schimmel 1494f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1495f1c2eddfSIdo Schimmel { 1496f1c2eddfSIdo Schimmel } 14976bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 14986bc506b4SIdo Schimmel 1499057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1500821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1501057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1502057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1503ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1504ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1505ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 15061da177e4SLinus Torvalds #endif 1507