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) 2168266a049SNikolay Aleksandrov #define MDB_PG_FLAGS_STAR_EXCL BIT(3) 2179d06b6d8SElad Raz 2188b671779SNikolay Aleksandrov #define PG_SRC_ENT_LIMIT 32 2198b671779SNikolay Aleksandrov 2208b671779SNikolay Aleksandrov #define BR_SGRP_F_DELETE BIT(0) 2218b671779SNikolay Aleksandrov #define BR_SGRP_F_SEND BIT(1) 222b0812368SNikolay Aleksandrov #define BR_SGRP_F_INSTALLED BIT(2) 2238b671779SNikolay Aleksandrov 224e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc { 225e12cec65SNikolay Aleksandrov struct hlist_node gc_node; 226e12cec65SNikolay Aleksandrov void (*destroy)(struct net_bridge_mcast_gc *gc); 227e12cec65SNikolay Aleksandrov }; 228e12cec65SNikolay Aleksandrov 2298b671779SNikolay Aleksandrov struct net_bridge_group_src { 2308b671779SNikolay Aleksandrov struct hlist_node node; 2318b671779SNikolay Aleksandrov 2328b671779SNikolay Aleksandrov struct br_ip addr; 2338b671779SNikolay Aleksandrov struct net_bridge_port_group *pg; 2348b671779SNikolay Aleksandrov u8 flags; 235438ef2d0SNikolay Aleksandrov u8 src_query_rexmit_cnt; 2368b671779SNikolay Aleksandrov struct timer_list timer; 2378b671779SNikolay Aleksandrov 2388b671779SNikolay Aleksandrov struct net_bridge *br; 239e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2408b671779SNikolay Aleksandrov struct rcu_head rcu; 2418b671779SNikolay Aleksandrov }; 2428b671779SNikolay Aleksandrov 243085b53c8SNikolay Aleksandrov struct net_bridge_port_group_sg_key { 244eb1d1641SHerbert Xu struct net_bridge_port *port; 2458ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 246085b53c8SNikolay Aleksandrov }; 247085b53c8SNikolay Aleksandrov 248085b53c8SNikolay Aleksandrov struct net_bridge_port_group { 249085b53c8SNikolay Aleksandrov struct net_bridge_port_group __rcu *next; 250085b53c8SNikolay Aleksandrov struct net_bridge_port_group_sg_key key; 251206e7323SThomas Martitz unsigned char eth_addr[ETH_ALEN] __aligned(2); 2529d06b6d8SElad Raz unsigned char flags; 2538b671779SNikolay Aleksandrov unsigned char filter_mode; 25442c11ccfSNikolay Aleksandrov unsigned char grp_query_rexmit_cnt; 2558f8cb77eSNikolay Aleksandrov unsigned char rt_protocol; 2566ec0d0eeSNikolay Aleksandrov 2578b671779SNikolay Aleksandrov struct hlist_head src_list; 2588b671779SNikolay Aleksandrov unsigned int src_ents; 2596ec0d0eeSNikolay Aleksandrov struct timer_list timer; 26042c11ccfSNikolay Aleksandrov struct timer_list rexmit_timer; 2616ec0d0eeSNikolay Aleksandrov struct hlist_node mglist; 2626ec0d0eeSNikolay Aleksandrov 263085b53c8SNikolay Aleksandrov struct rhash_head rhnode; 264e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2656ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 266eb1d1641SHerbert Xu }; 267eb1d1641SHerbert Xu 2681c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_entry { 26919e3a9c9SNikolay Aleksandrov struct rhash_head rhnode; 270eb1d1641SHerbert Xu struct net_bridge *br; 271e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 2728ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 273ff0fd34eSAndrew Lunn bool host_joined; 2746ec0d0eeSNikolay Aleksandrov 2756ec0d0eeSNikolay Aleksandrov struct timer_list timer; 27619e3a9c9SNikolay Aleksandrov struct hlist_node mdb_node; 2776ec0d0eeSNikolay Aleksandrov 278e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2796ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 280eb1d1641SHerbert Xu }; 281eb1d1641SHerbert Xu 2821f90c7f3SNikolay Aleksandrov struct net_bridge_port { 2831da177e4SLinus Torvalds struct net_bridge *br; 2841da177e4SLinus Torvalds struct net_device *dev; 2851da177e4SLinus Torvalds struct list_head list; 2861da177e4SLinus Torvalds 2871f90c7f3SNikolay Aleksandrov unsigned long flags; 2881f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 2891f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 2901f90c7f3SNikolay Aleksandrov #endif 2912756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 2921f90c7f3SNikolay Aleksandrov 2931da177e4SLinus Torvalds /* STP */ 2941da177e4SLinus Torvalds u8 priority; 2951da177e4SLinus Torvalds u8 state; 2961da177e4SLinus Torvalds u16 port_no; 2971da177e4SLinus Torvalds unsigned char topology_change_ack; 2981da177e4SLinus Torvalds unsigned char config_pending; 2991da177e4SLinus Torvalds port_id port_id; 3001da177e4SLinus Torvalds port_id designated_port; 3011da177e4SLinus Torvalds bridge_id designated_root; 3021da177e4SLinus Torvalds bridge_id designated_bridge; 3031da177e4SLinus Torvalds u32 path_cost; 3041da177e4SLinus Torvalds u32 designated_cost; 3050c03150eSstephen hemminger unsigned long designated_age; 3061da177e4SLinus Torvalds 3071da177e4SLinus Torvalds struct timer_list forward_delay_timer; 3081da177e4SLinus Torvalds struct timer_list hold_timer; 3091da177e4SLinus Torvalds struct timer_list message_age_timer; 3101da177e4SLinus Torvalds struct kobject kobj; 3111da177e4SLinus Torvalds struct rcu_head rcu; 3123982d3d2SFischer, Anna 313eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 31490010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 315cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 31690010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 317cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 318eb1d1641SHerbert Xu unsigned char multicast_router; 3191080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 320eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 321eb1d1641SHerbert Xu struct hlist_head mglist; 322eb1d1641SHerbert Xu struct hlist_node rlist; 323eb1d1641SHerbert Xu #endif 324e0f43752SSimon Arlott 325e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 326e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 327e0f43752SSimon Arlott #endif 32891d2c34aSHerbert Xu 32991d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 33091d2c34aSHerbert Xu struct netpoll *np; 33191d2c34aSHerbert Xu #endif 3326bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 3336bc506b4SIdo Schimmel int offload_fwd_mark; 3346bc506b4SIdo Schimmel #endif 3355af48b59SNikolay Aleksandrov u16 group_fwd_mask; 3362756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 337de179966SVivien Didelot 338de179966SVivien Didelot struct bridge_stp_xstats stp_xstats; 3391da177e4SLinus Torvalds }; 3401da177e4SLinus Torvalds 341705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 342705e0deaSTyler Hicks 343e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 344f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 345e028e4b8SVlad Yasevich 346b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 347b5ed54e9Sstephen hemminger { 348716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 349b5ed54e9Sstephen hemminger } 350b5ed54e9Sstephen hemminger 3511fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 352b5ed54e9Sstephen hemminger { 35335f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 354ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 355b5ed54e9Sstephen hemminger } 356b5ed54e9Sstephen hemminger 3570baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 3580baa10ffSArkadi Sharshevsky { 35935f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 3600baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3610baa10ffSArkadi Sharshevsky } 3620baa10ffSArkadi Sharshevsky 363ae75767eSNikolay Aleksandrov enum net_bridge_opts { 364ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 365ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 3668df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 3678df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 3688df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 369be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 37013cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 371675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 372675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 373675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 374675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 375c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 3763341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 3779163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 37870e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 3799c0ec2e7SMike Manning BROPT_VLAN_BRIDGE_BINDING, 380ae75767eSNikolay Aleksandrov }; 381ae75767eSNikolay Aleksandrov 3821f90c7f3SNikolay Aleksandrov struct net_bridge { 3831da177e4SLinus Torvalds spinlock_t lock; 3841f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 3851da177e4SLinus Torvalds struct list_head port_list; 3861da177e4SLinus Torvalds struct net_device *dev; 3878f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 388ae75767eSNikolay Aleksandrov unsigned long options; 3891f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3901f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3911f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3921f90c7f3SNikolay Aleksandrov u16 default_pvid; 3931f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3941f90c7f3SNikolay Aleksandrov #endif 3951f90c7f3SNikolay Aleksandrov 396eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 39734666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 398efb6de9bSBernhard Thaler union { 3994adf0af6SSimon Wunderlich struct rtable fake_rtable; 400efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 401efb6de9bSBernhard Thaler }; 4024adf0af6SSimon Wunderlich #endif 403515853ccSstephen hemminger u16 group_fwd_mask; 404f2808d22SToshiaki Makita u16 group_fwd_mask_required; 405515853ccSstephen hemminger 4061da177e4SLinus Torvalds /* STP */ 4071da177e4SLinus Torvalds bridge_id designated_root; 4081da177e4SLinus Torvalds bridge_id bridge_id; 4091f90c7f3SNikolay Aleksandrov unsigned char topology_change; 4101f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 4111f90c7f3SNikolay Aleksandrov u16 root_port; 4121da177e4SLinus Torvalds unsigned long max_age; 4131da177e4SLinus Torvalds unsigned long hello_time; 4141da177e4SLinus Torvalds unsigned long forward_delay; 4151da177e4SLinus Torvalds unsigned long ageing_time; 41634d8acd8SVivien Didelot unsigned long bridge_max_age; 4171da177e4SLinus Torvalds unsigned long bridge_hello_time; 4181da177e4SLinus Torvalds unsigned long bridge_forward_delay; 41934d8acd8SVivien Didelot unsigned long bridge_ageing_time; 42035750b0bSNikolay Aleksandrov u32 root_path_cost; 4211da177e4SLinus Torvalds 422fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 4239cde0708SStephen Hemminger 4249cde0708SStephen Hemminger enum { 4259cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 4269cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 4279cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 4289cde0708SStephen Hemminger } stp_enabled; 4299cde0708SStephen Hemminger 430eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 431eb1d1641SHerbert Xu 432eb1d1641SHerbert Xu u32 hash_max; 433eb1d1641SHerbert Xu 434eb1d1641SHerbert Xu u32 multicast_last_member_count; 435eb1d1641SHerbert Xu u32 multicast_startup_query_count; 436eb1d1641SHerbert Xu 4375e923585SNikolay Aleksandrov u8 multicast_igmp_version; 438675779adSNikolay Aleksandrov u8 multicast_router; 439675779adSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 440675779adSNikolay Aleksandrov u8 multicast_mld_version; 441675779adSNikolay Aleksandrov #endif 44235750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 443eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 444eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 445eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 446eb1d1641SHerbert Xu unsigned long multicast_query_interval; 447eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 448eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 449eb1d1641SHerbert Xu 45019e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 451085b53c8SNikolay Aleksandrov struct rhashtable sg_port_tbl; 45219e3a9c9SNikolay Aleksandrov 453e12cec65SNikolay Aleksandrov struct hlist_head mcast_gc_list; 45419e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 455eb1d1641SHerbert Xu struct hlist_head router_list; 456eb1d1641SHerbert Xu 457eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 45890010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 45990010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 460dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 4611080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 462cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 46390010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 46490010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 465dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 466cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 467e12cec65SNikolay Aleksandrov struct work_struct mcast_gc_work; 468eb1d1641SHerbert Xu #endif 469eb1d1641SHerbert Xu 4701da177e4SLinus Torvalds struct timer_list hello_timer; 4711da177e4SLinus Torvalds struct timer_list tcn_timer; 4721da177e4SLinus Torvalds struct timer_list topology_change_timer; 473f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 47443b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 475e028e4b8SVlad Yasevich u32 auto_cnt; 4766bc506b4SIdo Schimmel 4776bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4786bc506b4SIdo Schimmel int offload_fwd_mark; 4796bc506b4SIdo Schimmel #endif 480eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4814b8d7d4cSHoratiu Vultur 4824b8d7d4cSHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 4839b14d1f8SHoratiu Vultur struct list_head mrp_list; 4844b8d7d4cSHoratiu Vultur #endif 4851da177e4SLinus Torvalds }; 4861da177e4SLinus Torvalds 48768b7c895SHerbert Xu struct br_input_skb_cb { 48868b7c895SHerbert Xu struct net_device *brdev; 48993fdd47eSHerbert Xu 4903c171f49SPablo Neira Ayuso u16 frag_max_size; 49132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 492f12064d1SFlorian Westphal u8 igmp; 493f12064d1SFlorian Westphal u8 mrouters_only:1; 49432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 495f12064d1SFlorian Westphal u8 proxyarp_replied:1; 496f12064d1SFlorian Westphal u8 src_port_isolated:1; 49720adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 498f12064d1SFlorian Westphal u8 vlan_filtered:1; 49920adfa1aSVlad Yasevich #endif 500223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 501223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 502223fd0adSFlorian Westphal #endif 5036bc506b4SIdo Schimmel 5046bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 5056bc506b4SIdo Schimmel int offload_fwd_mark; 5066bc506b4SIdo Schimmel #endif 50768b7c895SHerbert Xu }; 50868b7c895SHerbert Xu 50968b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 51068b7c895SHerbert Xu 51132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 51232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 51332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 51432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 51532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 51632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 51728a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 51828a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 51928a16c97Sstephen hemminger 52028a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 52128a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 52228a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 52328a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 52428a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 52528a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 52628a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 52728a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 52828a16c97Sstephen hemminger 52928a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 53028a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 53128a16c97Sstephen hemminger 5321da177e4SLinus Torvalds /* called under bridge lock */ 5331da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 5341da177e4SLinus Torvalds { 5351da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 5361da177e4SLinus Torvalds } 5371da177e4SLinus Torvalds 5382594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 5392594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 5402594e906SNikolay Aleksandrov { 5412594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 5422594e906SNikolay Aleksandrov } 5432594e906SNikolay Aleksandrov 5442594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 5452594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 5462594e906SNikolay Aleksandrov { 5472594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 5482594e906SNikolay Aleksandrov } 5492594e906SNikolay Aleksandrov 5506be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 5512594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 5522594e906SNikolay Aleksandrov { 5532594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 5542594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 5552594e906SNikolay Aleksandrov return true; 5562594e906SNikolay Aleksandrov else 5572594e906SNikolay Aleksandrov return false; 5582594e906SNikolay Aleksandrov } 5592594e906SNikolay Aleksandrov 5602594e906SNikolay Aleksandrov return true; 5612594e906SNikolay Aleksandrov } 5622594e906SNikolay Aleksandrov 5635d1fcaf3SNikolay Aleksandrov static inline bool nbp_state_should_learn(const struct net_bridge_port *p) 5645d1fcaf3SNikolay Aleksandrov { 5655d1fcaf3SNikolay Aleksandrov return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; 5665d1fcaf3SNikolay Aleksandrov } 5675d1fcaf3SNikolay Aleksandrov 5688f4cc940SNikolay Aleksandrov static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack) 5695a46facbSNikolay Aleksandrov { 5708f4cc940SNikolay Aleksandrov bool ret = vid > 0 && vid < VLAN_VID_MASK; 5718f4cc940SNikolay Aleksandrov 5728f4cc940SNikolay Aleksandrov if (!ret) 5738f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid"); 5748f4cc940SNikolay Aleksandrov 5758f4cc940SNikolay Aleksandrov return ret; 5765a46facbSNikolay Aleksandrov } 5775a46facbSNikolay Aleksandrov 5785a46facbSNikolay Aleksandrov static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, 5798f4cc940SNikolay Aleksandrov const struct bridge_vlan_info *last, 5808f4cc940SNikolay Aleksandrov struct netlink_ext_ack *extack) 5815a46facbSNikolay Aleksandrov { 5825a46facbSNikolay Aleksandrov /* pvid flag is not allowed in ranges */ 5838f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_PVID) { 5848f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range"); 5855a46facbSNikolay Aleksandrov return false; 5868f4cc940SNikolay Aleksandrov } 5875a46facbSNikolay Aleksandrov 5885a46facbSNikolay Aleksandrov /* when cur is the range end, check if: 5895a46facbSNikolay Aleksandrov * - it has range start flag 5905a46facbSNikolay Aleksandrov * - range ids are invalid (end is equal to or before start) 5915a46facbSNikolay Aleksandrov */ 5925a46facbSNikolay Aleksandrov if (last) { 5938f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { 5948f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one"); 5955a46facbSNikolay Aleksandrov return false; 5968f4cc940SNikolay Aleksandrov } else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) { 5978f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing"); 5988f4cc940SNikolay Aleksandrov return false; 5998f4cc940SNikolay Aleksandrov } else if (cur->vid <= last->vid) { 6008f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); 6018f4cc940SNikolay Aleksandrov return false; 6028f4cc940SNikolay Aleksandrov } 6038f4cc940SNikolay Aleksandrov } 6048f4cc940SNikolay Aleksandrov 6058f4cc940SNikolay Aleksandrov /* check for required range flags */ 6068f4cc940SNikolay Aleksandrov if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 6078f4cc940SNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END))) { 6088f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing"); 6095a46facbSNikolay Aleksandrov return false; 6105a46facbSNikolay Aleksandrov } 6115a46facbSNikolay Aleksandrov 6125a46facbSNikolay Aleksandrov return true; 6135a46facbSNikolay Aleksandrov } 6145a46facbSNikolay Aleksandrov 615f545923bSNikolay Aleksandrov static inline int br_afspec_cmd_to_rtm(int cmd) 616f545923bSNikolay Aleksandrov { 617f545923bSNikolay Aleksandrov switch (cmd) { 618f545923bSNikolay Aleksandrov case RTM_SETLINK: 619f545923bSNikolay Aleksandrov return RTM_NEWVLAN; 620f545923bSNikolay Aleksandrov case RTM_DELLINK: 621f545923bSNikolay Aleksandrov return RTM_DELVLAN; 622f545923bSNikolay Aleksandrov } 623f545923bSNikolay Aleksandrov 624f545923bSNikolay Aleksandrov return 0; 625f545923bSNikolay Aleksandrov } 626f545923bSNikolay Aleksandrov 627ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 628ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 629ae75767eSNikolay Aleksandrov { 630ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 631ae75767eSNikolay Aleksandrov } 632ae75767eSNikolay Aleksandrov 633a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 634a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 635a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 636a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 637a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 638a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 639a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 640a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 641ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 642ae75767eSNikolay Aleksandrov 6431da177e4SLinus Torvalds /* br_device.c */ 644348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 645348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 646348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 647cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 64891d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 64991d2c34aSHerbert Xu struct sk_buff *skb) 65091d2c34aSHerbert Xu { 651f78ed220SEric Dumazet netpoll_send_skb(p->np, skb); 65291d2c34aSHerbert Xu } 65391d2c34aSHerbert Xu 654a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 655348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 65691d2c34aSHerbert Xu #else 6579f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 65891d2c34aSHerbert Xu struct sk_buff *skb) 65991d2c34aSHerbert Xu { 66091d2c34aSHerbert Xu } 66191d2c34aSHerbert Xu 662a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 66391d2c34aSHerbert Xu { 66491d2c34aSHerbert Xu return 0; 66591d2c34aSHerbert Xu } 66691d2c34aSHerbert Xu 66791d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 66891d2c34aSHerbert Xu { 66991d2c34aSHerbert Xu } 670cfb478daSstephen hemminger #endif 6711da177e4SLinus Torvalds 6721da177e4SLinus Torvalds /* br_fdb.c */ 673348662a1SJoe Perches int br_fdb_init(void); 674348662a1SJoe Perches void br_fdb_fini(void); 675eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 676eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 677348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 678424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 679424bb9c9SToshiaki Makita const struct net_bridge_port *p, 680424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 681348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 682348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 683f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 684348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 6851ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 686bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 687bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 688bfd0aeacSNikolay Aleksandrov __u16 vid); 689348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 690348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 691348662a1SJoe Perches unsigned long off); 692348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 693348662a1SJoe Perches const unsigned char *addr, u16 vid); 694348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 695be0c5677SNikolay Aleksandrov const unsigned char *addr, u16 vid, unsigned long flags); 69677162022SJohn Fastabend 697348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 698f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 699348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 70087b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 70187b0984eSPetr Machata struct netlink_ext_ack *extack); 702348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 703d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 70447674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 70547674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 70647674562SRoopa Prabhu struct netlink_ext_ack *extack); 7078db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 7088db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 7093aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 710161d82deSPetr Machata const unsigned char *addr, u16 vid, 711161d82deSPetr Machata bool swdev_notify); 7123aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 713161d82deSPetr Machata const unsigned char *addr, u16 vid, 714161d82deSPetr Machata bool swdev_notify); 7159fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 716e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 7171da177e4SLinus Torvalds 7181da177e4SLinus Torvalds /* br_forward.c */ 7198addd5e7SNikolay Aleksandrov enum br_pkt_type { 7208addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 7218addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 7228addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 7238addd5e7SNikolay Aleksandrov }; 7240c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 725b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 72637b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 7270c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 72837b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 7298addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 7301da177e4SLinus Torvalds 7317d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 7327d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 7337d850abdSNikolay Aleksandrov const struct sk_buff *skb) 7347d850abdSNikolay Aleksandrov { 7357d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 7367d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 7377d850abdSNikolay Aleksandrov } 7387d850abdSNikolay Aleksandrov 7391da177e4SLinus Torvalds /* br_if.c */ 740faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 741348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 742348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 743ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 744ca752be0SDavid Ahern struct netlink_ext_ack *extack); 745348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 746804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 747348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 748c8f44affSMichał Mirosław netdev_features_t features); 749e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 7502796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 7512756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 7521da177e4SLinus Torvalds 7531da177e4SLinus Torvalds /* br_input.c */ 7540c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 7559eb8eff0SVladimir Oltean rx_handler_func_t *br_get_rx_handler(const struct net_device *dev); 7561da177e4SLinus Torvalds 757859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 758859828c0SJiri Pirko { 7599eb8eff0SVladimir Oltean return rcu_dereference(dev->rx_handler) == br_get_rx_handler(dev); 760859828c0SJiri Pirko } 761859828c0SJiri Pirko 7624d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 7634d4fd361SPetr Machata { 7649eb8eff0SVladimir Oltean return rcu_dereference_rtnl(dev->rx_handler) == br_get_rx_handler(dev); 7654d4fd361SPetr Machata } 7664d4fd361SPetr Machata 767859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 768859828c0SJiri Pirko { 769859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 770859828c0SJiri Pirko } 771859828c0SJiri Pirko 7724d4fd361SPetr Machata static inline struct net_bridge_port * 7734d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 7744d4fd361SPetr Machata { 7754d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 7764d4fd361SPetr Machata } 7774d4fd361SPetr Machata 7781da177e4SLinus Torvalds /* br_ioctl.c */ 779348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 780348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 781348662a1SJoe Perches void __user *arg); 7821da177e4SLinus Torvalds 783eb1d1641SHerbert Xu /* br_multicast.c */ 784eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 785348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 786fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 787348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 788eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 7891080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 790348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 791348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 792348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 793348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 794348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 795348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 796e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 79737b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 79837b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 799348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 800348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 801348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 802348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 803348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 8045e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 805aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 806aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 807aa2ae3e7SNikolay Aleksandrov #endif 808348662a1SJoe Perches struct net_bridge_mdb_entry * 80919e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 810348662a1SJoe Perches struct net_bridge_mdb_entry * 81119e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 812348662a1SJoe Perches struct net_bridge_port_group * 813348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 814762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 8158b671779SNikolay Aleksandrov unsigned char flags, const unsigned char *src, 8168f8cb77eSNikolay Aleksandrov u8 filter_mode, u8 rt_protocol); 81719e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 81819e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 81981f19838SNikolay Aleksandrov void br_mdb_notify(struct net_device *dev, struct net_bridge_mdb_entry *mp, 82081f19838SNikolay Aleksandrov struct net_bridge_port_group *pg, int type); 821949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 822949f1e39SSatish Ashok int type); 823681590bdSNikolay Aleksandrov void br_multicast_del_pg(struct net_bridge_mdb_entry *mp, 824681590bdSNikolay Aleksandrov struct net_bridge_port_group *pg, 825681590bdSNikolay Aleksandrov struct net_bridge_port_group __rcu **pp); 8261080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 827a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 8281080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 829b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 8301080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 8311080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 8321080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 83319e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 83419e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 8351bc844eeSNikolay Aleksandrov void br_multicast_host_join(struct net_bridge_mdb_entry *mp, bool notify); 8361bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 8378266a049SNikolay Aleksandrov void br_multicast_star_g_handle_mode(struct net_bridge_port_group *pg, 8388266a049SNikolay Aleksandrov u8 filter_mode); 8398266a049SNikolay Aleksandrov void br_multicast_sg_add_exclude_ports(struct net_bridge_mdb_entry *star_mp, 8408266a049SNikolay Aleksandrov struct net_bridge_port_group *sg); 84185b35269SSridhar Samudrala 842cfd56754SCong Wang #define mlock_dereference(X, br) \ 843cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 844cfd56754SCong Wang 84585b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 84685b35269SSridhar Samudrala { 84785b35269SSridhar Samudrala return br->multicast_router == 2 || 84885b35269SSridhar Samudrala (br->multicast_router == 1 && 84985b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 85085b35269SSridhar Samudrala } 851b00589afSLinus Lüssing 852cc0fdd80SLinus Lüssing static inline bool 853cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 8540888d5f3Sdaniel struct bridge_mcast_other_query *querier, 8550888d5f3Sdaniel const bool is_ipv6) 856b00589afSLinus Lüssing { 8570888d5f3Sdaniel bool own_querier_enabled; 8580888d5f3Sdaniel 859675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 860675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 8610888d5f3Sdaniel own_querier_enabled = false; 8620888d5f3Sdaniel else 8630888d5f3Sdaniel own_querier_enabled = true; 8640888d5f3Sdaniel } else { 8650888d5f3Sdaniel own_querier_enabled = false; 8660888d5f3Sdaniel } 8670888d5f3Sdaniel 868cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 8690888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 870cc0fdd80SLinus Lüssing } 871cc0fdd80SLinus Lüssing 872cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 873cc0fdd80SLinus Lüssing struct ethhdr *eth) 874cc0fdd80SLinus Lüssing { 875cc0fdd80SLinus Lüssing switch (eth->h_proto) { 876cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 8770888d5f3Sdaniel return __br_multicast_querier_exists(br, 8780888d5f3Sdaniel &br->ip4_other_query, false); 879cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 880cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 8810888d5f3Sdaniel return __br_multicast_querier_exists(br, 8820888d5f3Sdaniel &br->ip6_other_query, true); 883cc0fdd80SLinus Lüssing #endif 884cc0fdd80SLinus Lüssing default: 885cc0fdd80SLinus Lüssing return false; 886cc0fdd80SLinus Lüssing } 887b00589afSLinus Lüssing } 8881080ab95SNikolay Aleksandrov 88988d4bd18SNikolay Aleksandrov static inline bool br_multicast_is_star_g(const struct br_ip *ip) 89088d4bd18SNikolay Aleksandrov { 89188d4bd18SNikolay Aleksandrov switch (ip->proto) { 89288d4bd18SNikolay Aleksandrov case htons(ETH_P_IP): 89388d4bd18SNikolay Aleksandrov return ipv4_is_zeronet(ip->src.ip4); 89488d4bd18SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 89588d4bd18SNikolay Aleksandrov case htons(ETH_P_IPV6): 89688d4bd18SNikolay Aleksandrov return ipv6_addr_any(&ip->src.ip6); 89788d4bd18SNikolay Aleksandrov #endif 89888d4bd18SNikolay Aleksandrov default: 89988d4bd18SNikolay Aleksandrov return false; 90088d4bd18SNikolay Aleksandrov } 90188d4bd18SNikolay Aleksandrov } 90288d4bd18SNikolay Aleksandrov 9038266a049SNikolay Aleksandrov static inline bool br_multicast_should_handle_mode(const struct net_bridge *br, 9048266a049SNikolay Aleksandrov __be16 proto) 9058266a049SNikolay Aleksandrov { 9068266a049SNikolay Aleksandrov switch (proto) { 9078266a049SNikolay Aleksandrov case htons(ETH_P_IP): 9088266a049SNikolay Aleksandrov return !!(br->multicast_igmp_version == 3); 9098266a049SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 9108266a049SNikolay Aleksandrov case htons(ETH_P_IPV6): 9118266a049SNikolay Aleksandrov return !!(br->multicast_mld_version == 2); 9128266a049SNikolay Aleksandrov #endif 9138266a049SNikolay Aleksandrov default: 9148266a049SNikolay Aleksandrov return false; 9158266a049SNikolay Aleksandrov } 9168266a049SNikolay Aleksandrov } 9178266a049SNikolay Aleksandrov 9181080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 9191080ab95SNikolay Aleksandrov { 9201080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 9211080ab95SNikolay Aleksandrov } 92242c11ccfSNikolay Aleksandrov 92342c11ccfSNikolay Aleksandrov static inline unsigned long br_multicast_lmqt(const struct net_bridge *br) 92442c11ccfSNikolay Aleksandrov { 92542c11ccfSNikolay Aleksandrov return br->multicast_last_member_interval * 92642c11ccfSNikolay Aleksandrov br->multicast_last_member_count; 92742c11ccfSNikolay Aleksandrov } 9280436862eSNikolay Aleksandrov 9290436862eSNikolay Aleksandrov static inline unsigned long br_multicast_gmi(const struct net_bridge *br) 9300436862eSNikolay Aleksandrov { 9310436862eSNikolay Aleksandrov /* use the RFC default of 2 for QRV */ 9320436862eSNikolay Aleksandrov return 2 * br->multicast_query_interval + 9330436862eSNikolay Aleksandrov br->multicast_query_response_interval; 9340436862eSNikolay Aleksandrov } 935eb1d1641SHerbert Xu #else 936eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 937eb1d1641SHerbert Xu struct net_bridge_port *port, 93806499098SVlad Yasevich struct sk_buff *skb, 93906499098SVlad Yasevich u16 vid) 940eb1d1641SHerbert Xu { 941eb1d1641SHerbert Xu return 0; 942eb1d1641SHerbert Xu } 943eb1d1641SHerbert Xu 944eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 945fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 946eb1d1641SHerbert Xu { 947eb1d1641SHerbert Xu return NULL; 948eb1d1641SHerbert Xu } 949eb1d1641SHerbert Xu 9501080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 951eb1d1641SHerbert Xu { 9521080ab95SNikolay Aleksandrov return 0; 953eb1d1641SHerbert Xu } 954eb1d1641SHerbert Xu 955eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 956eb1d1641SHerbert Xu { 957eb1d1641SHerbert Xu } 958eb1d1641SHerbert Xu 959eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 960eb1d1641SHerbert Xu { 961eb1d1641SHerbert Xu } 962eb1d1641SHerbert Xu 963eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 964eb1d1641SHerbert Xu { 965eb1d1641SHerbert Xu } 966eb1d1641SHerbert Xu 967eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 968eb1d1641SHerbert Xu { 969eb1d1641SHerbert Xu } 970eb1d1641SHerbert Xu 971eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 972eb1d1641SHerbert Xu { 973eb1d1641SHerbert Xu } 974eb1d1641SHerbert Xu 975eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 976eb1d1641SHerbert Xu { 977eb1d1641SHerbert Xu } 9785cb5e947SHerbert Xu 979a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 980a7ce45a7SNikolay Aleksandrov { 981a7ce45a7SNikolay Aleksandrov } 982a7ce45a7SNikolay Aleksandrov 98337b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 98437b090e6SNikolay Aleksandrov struct sk_buff *skb, 98537b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 9865cb5e947SHerbert Xu { 9875cb5e947SHerbert Xu } 9885cb5e947SHerbert Xu 989eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 990eb1d1641SHerbert Xu { 99103aaa9e2SGustavo A. R. Silva return false; 992eb1d1641SHerbert Xu } 99337b090e6SNikolay Aleksandrov 994cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 995cc0fdd80SLinus Lüssing struct ethhdr *eth) 996b00589afSLinus Lüssing { 997b00589afSLinus Lüssing return false; 998b00589afSLinus Lüssing } 99937b090e6SNikolay Aleksandrov 1000fdb184d1SRami Rosen static inline void br_mdb_init(void) 1001fdb184d1SRami Rosen { 1002fdb184d1SRami Rosen } 100337b090e6SNikolay Aleksandrov 1004fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 1005fdb184d1SRami Rosen { 1006fdb184d1SRami Rosen } 10071080ab95SNikolay Aleksandrov 100819e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 100919e3a9c9SNikolay Aleksandrov { 101019e3a9c9SNikolay Aleksandrov return 0; 101119e3a9c9SNikolay Aleksandrov } 101219e3a9c9SNikolay Aleksandrov 101319e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 101419e3a9c9SNikolay Aleksandrov { 101519e3a9c9SNikolay Aleksandrov } 101619e3a9c9SNikolay Aleksandrov 10171080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 10181080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 1019a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 1020a65056ecSNikolay Aleksandrov u8 type, u8 dir) 10211080ab95SNikolay Aleksandrov { 10221080ab95SNikolay Aleksandrov } 10231080ab95SNikolay Aleksandrov 10241080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 10251080ab95SNikolay Aleksandrov { 10261080ab95SNikolay Aleksandrov return 0; 10271080ab95SNikolay Aleksandrov } 10281080ab95SNikolay Aleksandrov 1029b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 1030b6fe0440SIdo Schimmel { 1031b6fe0440SIdo Schimmel } 1032b6fe0440SIdo Schimmel 10331080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 10341080ab95SNikolay Aleksandrov { 10351080ab95SNikolay Aleksandrov return 0; 10361080ab95SNikolay Aleksandrov } 103785b35269SSridhar Samudrala #endif 1038eb1d1641SHerbert Xu 1039243a2e63SVlad Yasevich /* br_vlan.c */ 1040243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 104177751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 104277751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 1043a580c76dSNikolay Aleksandrov u16 *vid, u8 *state); 104477751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 104585f46c6bSVlad Yasevich const struct sk_buff *skb); 1046e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 1047348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 104811538d03SRoopa Prabhu const struct net_bridge_port *port, 10492594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 105078851988SVlad Yasevich struct sk_buff *skb); 1051f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1052169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1053348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 1054348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 10552594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 1056204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 1057a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 1058348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 1059d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 1060204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 10616dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 10629163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 10635be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 106496a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 1065169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 1066169327d5SPetr Machata struct netlink_ext_ack *extack); 1067f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1068169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1069348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 1070348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 1071169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 10722594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 1073a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 1074a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 10759c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 1076091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 10779c0ec2e7SMike Manning void *ptr); 10788dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void); 10798dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void); 1080cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 1081cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1082cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1083cf5bddb9SNikolay Aleksandrov int cmd); 1084a5d29ae2SNikolay Aleksandrov bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1085a5d29ae2SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 1086a37b85c9SVlad Yasevich 10872594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 1088a37b85c9SVlad Yasevich const struct net_bridge *br) 1089a37b85c9SVlad Yasevich { 1090907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 1091a37b85c9SVlad Yasevich } 1092a37b85c9SVlad Yasevich 10932594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 1094a37b85c9SVlad Yasevich const struct net_bridge_port *p) 1095a37b85c9SVlad Yasevich { 1096907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 1097907b1e6eSNikolay Aleksandrov } 1098907b1e6eSNikolay Aleksandrov 1099907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1100907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1101907b1e6eSNikolay Aleksandrov { 1102907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 1103907b1e6eSNikolay Aleksandrov } 1104907b1e6eSNikolay Aleksandrov 1105907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1106907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1107907b1e6eSNikolay Aleksandrov { 1108907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 1109a37b85c9SVlad Yasevich } 1110a37b85c9SVlad Yasevich 1111a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 1112a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 1113a37b85c9SVlad Yasevich */ 1114a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 1115a37b85c9SVlad Yasevich { 1116a37b85c9SVlad Yasevich int err = 0; 1117a37b85c9SVlad Yasevich 11182594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 11195978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 11202594e906SNikolay Aleksandrov } else { 1121a37b85c9SVlad Yasevich *vid = 0; 1122a37b85c9SVlad Yasevich err = -EINVAL; 1123a37b85c9SVlad Yasevich } 1124a37b85c9SVlad Yasevich 1125a37b85c9SVlad Yasevich return err; 1126a37b85c9SVlad Yasevich } 112778851988SVlad Yasevich 112877751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 112978851988SVlad Yasevich { 113077751ee8SNikolay Aleksandrov if (!vg) 11315be5a2dfSVlad Yasevich return 0; 11325be5a2dfSVlad Yasevich 113378851988SVlad Yasevich smp_rmb(); 113477751ee8SNikolay Aleksandrov return vg->pvid; 113578851988SVlad Yasevich } 113678851988SVlad Yasevich 11378dcea187SNikolay Aleksandrov static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) 11388dcea187SNikolay Aleksandrov { 11398dcea187SNikolay Aleksandrov return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags; 11408dcea187SNikolay Aleksandrov } 1141243a2e63SVlad Yasevich #else 114277751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 114377751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 11442594e906SNikolay Aleksandrov struct sk_buff *skb, 1145a580c76dSNikolay Aleksandrov u16 *vid, u8 *state) 11462594e906SNikolay Aleksandrov { 11472594e906SNikolay Aleksandrov return true; 11482594e906SNikolay Aleksandrov } 11492594e906SNikolay Aleksandrov 11502594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 115185f46c6bSVlad Yasevich const struct sk_buff *skb) 115285f46c6bSVlad Yasevich { 115385f46c6bSVlad Yasevich return true; 115485f46c6bSVlad Yasevich } 115585f46c6bSVlad Yasevich 1156e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 1157e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 1158e0d7968aSToshiaki Makita { 1159e0d7968aSToshiaki Makita return true; 1160e0d7968aSToshiaki Makita } 1161e0d7968aSToshiaki Makita 116278851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 116311538d03SRoopa Prabhu const struct net_bridge_port *port, 11642594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 116578851988SVlad Yasevich struct sk_buff *skb) 116678851988SVlad Yasevich { 116778851988SVlad Yasevich return skb; 116878851988SVlad Yasevich } 116978851988SVlad Yasevich 1170f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1171169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1172243a2e63SVlad Yasevich { 1173f418af63SNikolay Aleksandrov *changed = false; 1174243a2e63SVlad Yasevich return -EOPNOTSUPP; 1175243a2e63SVlad Yasevich } 1176243a2e63SVlad Yasevich 1177243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 1178243a2e63SVlad Yasevich { 1179243a2e63SVlad Yasevich return -EOPNOTSUPP; 1180243a2e63SVlad Yasevich } 1181243a2e63SVlad Yasevich 1182243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1183243a2e63SVlad Yasevich { 1184243a2e63SVlad Yasevich } 1185243a2e63SVlad Yasevich 1186204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1187204177f3SToshiaki Makita { 1188204177f3SToshiaki Makita } 1189204177f3SToshiaki Makita 11905be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 11918580e211SToshiaki Makita { 11925be5a2dfSVlad Yasevich return 0; 11938580e211SToshiaki Makita } 11948580e211SToshiaki Makita 1195f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1196169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1197243a2e63SVlad Yasevich { 1198f418af63SNikolay Aleksandrov *changed = false; 1199243a2e63SVlad Yasevich return -EOPNOTSUPP; 1200243a2e63SVlad Yasevich } 1201243a2e63SVlad Yasevich 1202243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1203243a2e63SVlad Yasevich { 1204243a2e63SVlad Yasevich return -EOPNOTSUPP; 1205243a2e63SVlad Yasevich } 1206243a2e63SVlad Yasevich 1207243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1208243a2e63SVlad Yasevich { 1209243a2e63SVlad Yasevich } 1210243a2e63SVlad Yasevich 12112594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 12122594e906SNikolay Aleksandrov u16 vid) 1213a37b85c9SVlad Yasevich { 1214a37b85c9SVlad Yasevich return NULL; 1215a37b85c9SVlad Yasevich } 1216bc9a25d2SVlad Yasevich 1217169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1218169327d5SPetr Machata struct netlink_ext_ack *extack) 12195be5a2dfSVlad Yasevich { 12205be5a2dfSVlad Yasevich return 0; 12215be5a2dfSVlad Yasevich } 12225be5a2dfSVlad Yasevich 122378851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1224a37b85c9SVlad Yasevich { 1225a37b85c9SVlad Yasevich return 0; 1226a37b85c9SVlad Yasevich } 12272594e906SNikolay Aleksandrov 122877751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 122978851988SVlad Yasevich { 12303df6bf45SVlad Yasevich return 0; 123178851988SVlad Yasevich } 12322796d0c6SVlad Yasevich 1233a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1234a7854037SNikolay Aleksandrov unsigned long val) 1235a7854037SNikolay Aleksandrov { 1236a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1237a7854037SNikolay Aleksandrov } 12382594e906SNikolay Aleksandrov 12392594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 12402594e906SNikolay Aleksandrov u32 filter_mask) 12412594e906SNikolay Aleksandrov { 12422594e906SNikolay Aleksandrov return 0; 12432594e906SNikolay Aleksandrov } 12442594e906SNikolay Aleksandrov 12452594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 12462594e906SNikolay Aleksandrov const struct net_bridge *br) 12472594e906SNikolay Aleksandrov { 12482594e906SNikolay Aleksandrov return NULL; 12492594e906SNikolay Aleksandrov } 12502594e906SNikolay Aleksandrov 12512594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 12522594e906SNikolay Aleksandrov const struct net_bridge_port *p) 12532594e906SNikolay Aleksandrov { 12542594e906SNikolay Aleksandrov return NULL; 12552594e906SNikolay Aleksandrov } 1256907b1e6eSNikolay Aleksandrov 1257907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1258907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1259907b1e6eSNikolay Aleksandrov { 1260907b1e6eSNikolay Aleksandrov return NULL; 1261907b1e6eSNikolay Aleksandrov } 1262907b1e6eSNikolay Aleksandrov 1263907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1264907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1265907b1e6eSNikolay Aleksandrov { 1266907b1e6eSNikolay Aleksandrov return NULL; 1267907b1e6eSNikolay Aleksandrov } 1268a60c0903SNikolay Aleksandrov 1269a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1270a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1271a60c0903SNikolay Aleksandrov { 1272a60c0903SNikolay Aleksandrov } 12739c0ec2e7SMike Manning 12749c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 12759c0ec2e7SMike Manning unsigned long event) 12769c0ec2e7SMike Manning { 12779c0ec2e7SMike Manning } 12789c0ec2e7SMike Manning 1279091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 12809c0ec2e7SMike Manning unsigned long event, void *ptr) 12819c0ec2e7SMike Manning { 1282091adf9bSNikolay Aleksandrov return 0; 12839c0ec2e7SMike Manning } 12848dcea187SNikolay Aleksandrov 12858dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_init(void) 12868dcea187SNikolay Aleksandrov { 12878dcea187SNikolay Aleksandrov } 12888dcea187SNikolay Aleksandrov 12898dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_uninit(void) 12908dcea187SNikolay Aleksandrov { 12918dcea187SNikolay Aleksandrov } 1292cf5bddb9SNikolay Aleksandrov 1293cf5bddb9SNikolay Aleksandrov static inline void br_vlan_notify(const struct net_bridge *br, 1294cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1295cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1296cf5bddb9SNikolay Aleksandrov int cmd) 1297cf5bddb9SNikolay Aleksandrov { 1298cf5bddb9SNikolay Aleksandrov } 1299528ae84aSNikolay Aleksandrov 1300528ae84aSNikolay Aleksandrov static inline bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1301528ae84aSNikolay Aleksandrov const struct net_bridge_vlan *range_end) 1302528ae84aSNikolay Aleksandrov { 1303528ae84aSNikolay Aleksandrov return true; 1304528ae84aSNikolay Aleksandrov } 1305243a2e63SVlad Yasevich #endif 1306243a2e63SVlad Yasevich 13077a53e718SNikolay Aleksandrov /* br_vlan_options.c */ 13087a53e718SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 130999f7c5e0SNikolay Aleksandrov bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, 131099f7c5e0SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 13117a53e718SNikolay Aleksandrov bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v); 13127a53e718SNikolay Aleksandrov size_t br_vlan_opts_nl_size(void); 1313a5d29ae2SNikolay Aleksandrov int br_vlan_process_options(const struct net_bridge *br, 1314a5d29ae2SNikolay Aleksandrov const struct net_bridge_port *p, 1315a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_start, 1316a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_end, 1317a5d29ae2SNikolay Aleksandrov struct nlattr **tb, 1318a5d29ae2SNikolay Aleksandrov struct netlink_ext_ack *extack); 1319a580c76dSNikolay Aleksandrov 1320a580c76dSNikolay Aleksandrov /* vlan state manipulation helpers using *_ONCE to annotate lock-free access */ 1321a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v) 1322a580c76dSNikolay Aleksandrov { 1323a580c76dSNikolay Aleksandrov return READ_ONCE(v->state); 1324a580c76dSNikolay Aleksandrov } 1325a580c76dSNikolay Aleksandrov 1326a580c76dSNikolay Aleksandrov static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state) 1327a580c76dSNikolay Aleksandrov { 1328a580c76dSNikolay Aleksandrov WRITE_ONCE(v->state, state); 1329a580c76dSNikolay Aleksandrov } 1330a580c76dSNikolay Aleksandrov 1331a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg) 1332a580c76dSNikolay Aleksandrov { 1333a580c76dSNikolay Aleksandrov return READ_ONCE(vg->pvid_state); 1334a580c76dSNikolay Aleksandrov } 1335a580c76dSNikolay Aleksandrov 1336a580c76dSNikolay Aleksandrov static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg, 1337a580c76dSNikolay Aleksandrov u8 state) 1338a580c76dSNikolay Aleksandrov { 1339a580c76dSNikolay Aleksandrov WRITE_ONCE(vg->pvid_state, state); 1340a580c76dSNikolay Aleksandrov } 1341a580c76dSNikolay Aleksandrov 1342a580c76dSNikolay Aleksandrov /* learn_allow is true at ingress and false at egress */ 1343a580c76dSNikolay Aleksandrov static inline bool br_vlan_state_allowed(u8 state, bool learn_allow) 1344a580c76dSNikolay Aleksandrov { 1345a580c76dSNikolay Aleksandrov switch (state) { 1346a580c76dSNikolay Aleksandrov case BR_STATE_LEARNING: 1347a580c76dSNikolay Aleksandrov return learn_allow; 1348a580c76dSNikolay Aleksandrov case BR_STATE_FORWARDING: 1349a580c76dSNikolay Aleksandrov return true; 1350a580c76dSNikolay Aleksandrov default: 1351a580c76dSNikolay Aleksandrov return false; 1352a580c76dSNikolay Aleksandrov } 1353a580c76dSNikolay Aleksandrov } 13547a53e718SNikolay Aleksandrov #endif 13557a53e718SNikolay Aleksandrov 13561a4ba64dSPablo Neira Ayuso struct nf_br_ops { 13571a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 13581a4ba64dSPablo Neira Ayuso }; 13591a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 13601a4ba64dSPablo Neira Ayuso 13611da177e4SLinus Torvalds /* br_netfilter.c */ 136234666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 136334666d46SPablo Neira Ayuso int br_nf_core_init(void); 136434666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1365348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1366c0909713SStephen Hemminger #else 136734666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 136834666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 13694adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1370c0909713SStephen Hemminger #endif 13711da177e4SLinus Torvalds 13721da177e4SLinus Torvalds /* br_stp.c */ 1373775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1374348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1375348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1376348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 13771da177e4SLinus Torvalds 1378348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1379348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1380348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1381348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 138282dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 13839e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 138414f98f25Sstephen hemminger 138514f98f25Sstephen hemminger 13861da177e4SLinus Torvalds /* br_stp_if.c */ 1387348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1388348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1389419dba8aSHoratiu Vultur int br_stp_set_enabled(struct net_bridge *br, unsigned long val, 1390419dba8aSHoratiu Vultur struct netlink_ext_ack *extack); 1391348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1392348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1393348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1394348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1395348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1396348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1397348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1398348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 13991da177e4SLinus Torvalds 14001da177e4SLinus Torvalds /* br_stp_bpdu.c */ 14017c85fbf0SPatrick McHardy struct stp_proto; 1402348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 14037c85fbf0SPatrick McHardy struct net_device *dev); 14041da177e4SLinus Torvalds 14051da177e4SLinus Torvalds /* br_stp_timer.c */ 1406348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1407348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1408348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 14091da177e4SLinus Torvalds 14101da177e4SLinus Torvalds /* br.c */ 1411e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1412da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1413da678292SMichał Mirosław #endif 14141da177e4SLinus Torvalds 141565369933SHoratiu Vultur /* br_mrp.c */ 141665369933SHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 141765369933SHoratiu Vultur int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 141865369933SHoratiu Vultur struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 141965369933SHoratiu Vultur int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb); 142065369933SHoratiu Vultur bool br_mrp_enabled(struct net_bridge *br); 142165369933SHoratiu Vultur void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p); 1422df42ef22SHoratiu Vultur int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br); 142365369933SHoratiu Vultur #else 142465369933SHoratiu Vultur static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 142565369933SHoratiu Vultur struct nlattr *attr, int cmd, 142665369933SHoratiu Vultur struct netlink_ext_ack *extack) 142765369933SHoratiu Vultur { 142865369933SHoratiu Vultur return -EOPNOTSUPP; 142965369933SHoratiu Vultur } 143065369933SHoratiu Vultur 143165369933SHoratiu Vultur static inline int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb) 143265369933SHoratiu Vultur { 143365369933SHoratiu Vultur return 0; 143465369933SHoratiu Vultur } 143565369933SHoratiu Vultur 143665369933SHoratiu Vultur static inline bool br_mrp_enabled(struct net_bridge *br) 143765369933SHoratiu Vultur { 14388741e184SJason Yan return false; 143965369933SHoratiu Vultur } 144065369933SHoratiu Vultur 144165369933SHoratiu Vultur static inline void br_mrp_port_del(struct net_bridge *br, 144265369933SHoratiu Vultur struct net_bridge_port *p) 144365369933SHoratiu Vultur { 144465369933SHoratiu Vultur } 1445df42ef22SHoratiu Vultur 1446df42ef22SHoratiu Vultur static inline int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br) 1447df42ef22SHoratiu Vultur { 1448df42ef22SHoratiu Vultur return 0; 1449df42ef22SHoratiu Vultur } 1450df42ef22SHoratiu Vultur 145165369933SHoratiu Vultur #endif 145265369933SHoratiu Vultur 145311dc1f36SStephen Hemminger /* br_netlink.c */ 1454149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1455348662a1SJoe Perches int br_netlink_init(void); 1456348662a1SJoe Perches void br_netlink_fini(void); 145792899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 145892899063SNikolay Aleksandrov const struct net_bridge_port *port); 14592fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 14602fd527b7SPetr Machata struct netlink_ext_ack *extack); 1461add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1462348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 146346c264daSNicolas Dichtel u32 filter_mask, int nlflags); 1464f26b2965SNikolay Aleksandrov int br_process_vlan_info(struct net_bridge *br, 1465f26b2965SNikolay Aleksandrov struct net_bridge_port *p, int cmd, 1466f26b2965SNikolay Aleksandrov struct bridge_vlan_info *vinfo_curr, 1467f26b2965SNikolay Aleksandrov struct bridge_vlan_info **vinfo_last, 1468f26b2965SNikolay Aleksandrov bool *changed, 1469f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack); 147011dc1f36SStephen Hemminger 14711da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 14721da177e4SLinus Torvalds /* br_sysfs_if.c */ 147352cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1474348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1475348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 14761da177e4SLinus Torvalds 14771da177e4SLinus Torvalds /* br_sysfs_br.c */ 1478348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1479348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 14801da177e4SLinus Torvalds 14811da177e4SLinus Torvalds #else 14821da177e4SLinus Torvalds 14830cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 14840cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 14850cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 14860cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 14871da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 14881da177e4SLinus Torvalds 14896bc506b4SIdo Schimmel /* br_switchdev.c */ 14906bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 14916bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 14926bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 14936bc506b4SIdo Schimmel struct sk_buff *skb); 14946bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 14956bc506b4SIdo Schimmel const struct sk_buff *skb); 14963922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 14973922285dSArkadi Sharshevsky unsigned long flags, 14983922285dSArkadi Sharshevsky unsigned long mask); 14996b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 15006b26b51bSArkadi Sharshevsky int type); 1501169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1502169327d5SPetr Machata struct netlink_ext_ack *extack); 1503d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1504f1c2eddfSIdo Schimmel 1505f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1506f1c2eddfSIdo Schimmel { 1507f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1508f1c2eddfSIdo Schimmel } 15096bc506b4SIdo Schimmel #else 15106bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 15116bc506b4SIdo Schimmel { 15126bc506b4SIdo Schimmel return 0; 15136bc506b4SIdo Schimmel } 15146bc506b4SIdo Schimmel 15156bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 15166bc506b4SIdo Schimmel struct sk_buff *skb) 15176bc506b4SIdo Schimmel { 15186bc506b4SIdo Schimmel } 15196bc506b4SIdo Schimmel 15206bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 15216bc506b4SIdo Schimmel const struct sk_buff *skb) 15226bc506b4SIdo Schimmel { 15236bc506b4SIdo Schimmel return true; 15246bc506b4SIdo Schimmel } 15253922285dSArkadi Sharshevsky 15263922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 15273922285dSArkadi Sharshevsky unsigned long flags, 15283922285dSArkadi Sharshevsky unsigned long mask) 15293922285dSArkadi Sharshevsky { 15303922285dSArkadi Sharshevsky return 0; 15313922285dSArkadi Sharshevsky } 15326b26b51bSArkadi Sharshevsky 1533d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1534169327d5SPetr Machata u16 vid, u16 flags, 1535169327d5SPetr Machata struct netlink_ext_ack *extack) 1536d66e4348SPetr Machata { 1537d66e4348SPetr Machata return -EOPNOTSUPP; 1538d66e4348SPetr Machata } 1539d66e4348SPetr Machata 1540d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1541d66e4348SPetr Machata { 1542d66e4348SPetr Machata return -EOPNOTSUPP; 1543d66e4348SPetr Machata } 1544d66e4348SPetr Machata 15456b26b51bSArkadi Sharshevsky static inline void 15466b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 15476b26b51bSArkadi Sharshevsky { 15486b26b51bSArkadi Sharshevsky } 1549f1c2eddfSIdo Schimmel 1550f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1551f1c2eddfSIdo Schimmel { 1552f1c2eddfSIdo Schimmel } 15536bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 15546bc506b4SIdo Schimmel 1555057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1556821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1557057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1558057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1559ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1560ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1561ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 15621da177e4SLinus Torvalds #endif 1563