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) 2179116ffbfSNikolay Aleksandrov #define MDB_PG_FLAGS_BLOCKED BIT(4) 2189d06b6d8SElad Raz 2198b671779SNikolay Aleksandrov #define PG_SRC_ENT_LIMIT 32 2208b671779SNikolay Aleksandrov 2218b671779SNikolay Aleksandrov #define BR_SGRP_F_DELETE BIT(0) 2228b671779SNikolay Aleksandrov #define BR_SGRP_F_SEND BIT(1) 223b0812368SNikolay Aleksandrov #define BR_SGRP_F_INSTALLED BIT(2) 2248b671779SNikolay Aleksandrov 225e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc { 226e12cec65SNikolay Aleksandrov struct hlist_node gc_node; 227e12cec65SNikolay Aleksandrov void (*destroy)(struct net_bridge_mcast_gc *gc); 228e12cec65SNikolay Aleksandrov }; 229e12cec65SNikolay Aleksandrov 2308b671779SNikolay Aleksandrov struct net_bridge_group_src { 2318b671779SNikolay Aleksandrov struct hlist_node node; 2328b671779SNikolay Aleksandrov 2338b671779SNikolay Aleksandrov struct br_ip addr; 2348b671779SNikolay Aleksandrov struct net_bridge_port_group *pg; 2358b671779SNikolay Aleksandrov u8 flags; 236438ef2d0SNikolay Aleksandrov u8 src_query_rexmit_cnt; 2378b671779SNikolay Aleksandrov struct timer_list timer; 2388b671779SNikolay Aleksandrov 2398b671779SNikolay Aleksandrov struct net_bridge *br; 240e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2418b671779SNikolay Aleksandrov struct rcu_head rcu; 2428b671779SNikolay Aleksandrov }; 2438b671779SNikolay Aleksandrov 244085b53c8SNikolay Aleksandrov struct net_bridge_port_group_sg_key { 245eb1d1641SHerbert Xu struct net_bridge_port *port; 2468ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 247085b53c8SNikolay Aleksandrov }; 248085b53c8SNikolay Aleksandrov 249085b53c8SNikolay Aleksandrov struct net_bridge_port_group { 250085b53c8SNikolay Aleksandrov struct net_bridge_port_group __rcu *next; 251085b53c8SNikolay Aleksandrov struct net_bridge_port_group_sg_key key; 252206e7323SThomas Martitz unsigned char eth_addr[ETH_ALEN] __aligned(2); 2539d06b6d8SElad Raz unsigned char flags; 2548b671779SNikolay Aleksandrov unsigned char filter_mode; 25542c11ccfSNikolay Aleksandrov unsigned char grp_query_rexmit_cnt; 2568f8cb77eSNikolay Aleksandrov unsigned char rt_protocol; 2576ec0d0eeSNikolay Aleksandrov 2588b671779SNikolay Aleksandrov struct hlist_head src_list; 2598b671779SNikolay Aleksandrov unsigned int src_ents; 2606ec0d0eeSNikolay Aleksandrov struct timer_list timer; 26142c11ccfSNikolay Aleksandrov struct timer_list rexmit_timer; 2626ec0d0eeSNikolay Aleksandrov struct hlist_node mglist; 2636ec0d0eeSNikolay Aleksandrov 264085b53c8SNikolay Aleksandrov struct rhash_head rhnode; 265e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2666ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 267eb1d1641SHerbert Xu }; 268eb1d1641SHerbert Xu 2691c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_entry { 27019e3a9c9SNikolay Aleksandrov struct rhash_head rhnode; 271eb1d1641SHerbert Xu struct net_bridge *br; 272e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 2738ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 274ff0fd34eSAndrew Lunn bool host_joined; 2756ec0d0eeSNikolay Aleksandrov 2766ec0d0eeSNikolay Aleksandrov struct timer_list timer; 27719e3a9c9SNikolay Aleksandrov struct hlist_node mdb_node; 2786ec0d0eeSNikolay Aleksandrov 279e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2806ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 281eb1d1641SHerbert Xu }; 282eb1d1641SHerbert Xu 2831f90c7f3SNikolay Aleksandrov struct net_bridge_port { 2841da177e4SLinus Torvalds struct net_bridge *br; 2851da177e4SLinus Torvalds struct net_device *dev; 2861da177e4SLinus Torvalds struct list_head list; 2871da177e4SLinus Torvalds 2881f90c7f3SNikolay Aleksandrov unsigned long flags; 2891f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 2901f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 2911f90c7f3SNikolay Aleksandrov #endif 2922756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 2931f90c7f3SNikolay Aleksandrov 2941da177e4SLinus Torvalds /* STP */ 2951da177e4SLinus Torvalds u8 priority; 2961da177e4SLinus Torvalds u8 state; 2971da177e4SLinus Torvalds u16 port_no; 2981da177e4SLinus Torvalds unsigned char topology_change_ack; 2991da177e4SLinus Torvalds unsigned char config_pending; 3001da177e4SLinus Torvalds port_id port_id; 3011da177e4SLinus Torvalds port_id designated_port; 3021da177e4SLinus Torvalds bridge_id designated_root; 3031da177e4SLinus Torvalds bridge_id designated_bridge; 3041da177e4SLinus Torvalds u32 path_cost; 3051da177e4SLinus Torvalds u32 designated_cost; 3060c03150eSstephen hemminger unsigned long designated_age; 3071da177e4SLinus Torvalds 3081da177e4SLinus Torvalds struct timer_list forward_delay_timer; 3091da177e4SLinus Torvalds struct timer_list hold_timer; 3101da177e4SLinus Torvalds struct timer_list message_age_timer; 3111da177e4SLinus Torvalds struct kobject kobj; 3121da177e4SLinus Torvalds struct rcu_head rcu; 3133982d3d2SFischer, Anna 314eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 31590010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 316cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 31790010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 318cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 319eb1d1641SHerbert Xu unsigned char multicast_router; 3201080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 321eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 322eb1d1641SHerbert Xu struct hlist_head mglist; 323eb1d1641SHerbert Xu struct hlist_node rlist; 324eb1d1641SHerbert Xu #endif 325e0f43752SSimon Arlott 326e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 327e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 328e0f43752SSimon Arlott #endif 32991d2c34aSHerbert Xu 33091d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 33191d2c34aSHerbert Xu struct netpoll *np; 33291d2c34aSHerbert Xu #endif 3336bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 3346bc506b4SIdo Schimmel int offload_fwd_mark; 3356bc506b4SIdo Schimmel #endif 3365af48b59SNikolay Aleksandrov u16 group_fwd_mask; 3372756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 338de179966SVivien Didelot 339de179966SVivien Didelot struct bridge_stp_xstats stp_xstats; 3401da177e4SLinus Torvalds }; 3411da177e4SLinus Torvalds 342705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 343705e0deaSTyler Hicks 344e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 345f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 346e028e4b8SVlad Yasevich 347b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 348b5ed54e9Sstephen hemminger { 349716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 350b5ed54e9Sstephen hemminger } 351b5ed54e9Sstephen hemminger 3521fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 353b5ed54e9Sstephen hemminger { 35435f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 355ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 356b5ed54e9Sstephen hemminger } 357b5ed54e9Sstephen hemminger 3580baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 3590baa10ffSArkadi Sharshevsky { 36035f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 3610baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3620baa10ffSArkadi Sharshevsky } 3630baa10ffSArkadi Sharshevsky 364ae75767eSNikolay Aleksandrov enum net_bridge_opts { 365ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 366ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 3678df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 3688df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 3698df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 370be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 37113cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 372675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 373675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 374675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 375675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 376c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 3773341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 3789163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 37970e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 3809c0ec2e7SMike Manning BROPT_VLAN_BRIDGE_BINDING, 381ae75767eSNikolay Aleksandrov }; 382ae75767eSNikolay Aleksandrov 3831f90c7f3SNikolay Aleksandrov struct net_bridge { 3841da177e4SLinus Torvalds spinlock_t lock; 3851f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 386*90c628ddSHenrik Bjoernlund struct hlist_head frame_type_list; 3871da177e4SLinus Torvalds struct net_device *dev; 3888f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 389ae75767eSNikolay Aleksandrov unsigned long options; 3901f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3911f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3921f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3931f90c7f3SNikolay Aleksandrov u16 default_pvid; 3941f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3951f90c7f3SNikolay Aleksandrov #endif 3961f90c7f3SNikolay Aleksandrov 397eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 398*90c628ddSHenrik Bjoernlund struct list_head port_list; 39934666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 400efb6de9bSBernhard Thaler union { 4014adf0af6SSimon Wunderlich struct rtable fake_rtable; 402efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 403efb6de9bSBernhard Thaler }; 4044adf0af6SSimon Wunderlich #endif 405515853ccSstephen hemminger u16 group_fwd_mask; 406f2808d22SToshiaki Makita u16 group_fwd_mask_required; 407515853ccSstephen hemminger 4081da177e4SLinus Torvalds /* STP */ 4091da177e4SLinus Torvalds bridge_id designated_root; 4101da177e4SLinus Torvalds bridge_id bridge_id; 4111f90c7f3SNikolay Aleksandrov unsigned char topology_change; 4121f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 4131f90c7f3SNikolay Aleksandrov u16 root_port; 4141da177e4SLinus Torvalds unsigned long max_age; 4151da177e4SLinus Torvalds unsigned long hello_time; 4161da177e4SLinus Torvalds unsigned long forward_delay; 4171da177e4SLinus Torvalds unsigned long ageing_time; 41834d8acd8SVivien Didelot unsigned long bridge_max_age; 4191da177e4SLinus Torvalds unsigned long bridge_hello_time; 4201da177e4SLinus Torvalds unsigned long bridge_forward_delay; 42134d8acd8SVivien Didelot unsigned long bridge_ageing_time; 42235750b0bSNikolay Aleksandrov u32 root_path_cost; 4231da177e4SLinus Torvalds 424fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 4259cde0708SStephen Hemminger 4269cde0708SStephen Hemminger enum { 4279cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 4289cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 4299cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 4309cde0708SStephen Hemminger } stp_enabled; 4319cde0708SStephen Hemminger 432eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 433eb1d1641SHerbert Xu 434eb1d1641SHerbert Xu u32 hash_max; 435eb1d1641SHerbert Xu 436eb1d1641SHerbert Xu u32 multicast_last_member_count; 437eb1d1641SHerbert Xu u32 multicast_startup_query_count; 438eb1d1641SHerbert Xu 4395e923585SNikolay Aleksandrov u8 multicast_igmp_version; 440675779adSNikolay Aleksandrov u8 multicast_router; 441675779adSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 442675779adSNikolay Aleksandrov u8 multicast_mld_version; 443675779adSNikolay Aleksandrov #endif 44435750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 445eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 446eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 447eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 448eb1d1641SHerbert Xu unsigned long multicast_query_interval; 449eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 450eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 451eb1d1641SHerbert Xu 45219e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 453085b53c8SNikolay Aleksandrov struct rhashtable sg_port_tbl; 45419e3a9c9SNikolay Aleksandrov 455e12cec65SNikolay Aleksandrov struct hlist_head mcast_gc_list; 45619e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 457eb1d1641SHerbert Xu struct hlist_head router_list; 458eb1d1641SHerbert Xu 459eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 46090010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 46190010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 462dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 4631080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 464cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 46590010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 46690010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 467dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 468cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 469e12cec65SNikolay Aleksandrov struct work_struct mcast_gc_work; 470eb1d1641SHerbert Xu #endif 471eb1d1641SHerbert Xu 4721da177e4SLinus Torvalds struct timer_list hello_timer; 4731da177e4SLinus Torvalds struct timer_list tcn_timer; 4741da177e4SLinus Torvalds struct timer_list topology_change_timer; 475f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 47643b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 477e028e4b8SVlad Yasevich u32 auto_cnt; 4786bc506b4SIdo Schimmel 4796bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4806bc506b4SIdo Schimmel int offload_fwd_mark; 4816bc506b4SIdo Schimmel #endif 482eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4834b8d7d4cSHoratiu Vultur 4844b8d7d4cSHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 4859b14d1f8SHoratiu Vultur struct list_head mrp_list; 4864b8d7d4cSHoratiu Vultur #endif 4871da177e4SLinus Torvalds }; 4881da177e4SLinus Torvalds 48968b7c895SHerbert Xu struct br_input_skb_cb { 49068b7c895SHerbert Xu struct net_device *brdev; 49193fdd47eSHerbert Xu 4923c171f49SPablo Neira Ayuso u16 frag_max_size; 49332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 494f12064d1SFlorian Westphal u8 igmp; 495f12064d1SFlorian Westphal u8 mrouters_only:1; 49632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 497f12064d1SFlorian Westphal u8 proxyarp_replied:1; 498f12064d1SFlorian Westphal u8 src_port_isolated:1; 49920adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 500f12064d1SFlorian Westphal u8 vlan_filtered:1; 50120adfa1aSVlad Yasevich #endif 502223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 503223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 504223fd0adSFlorian Westphal #endif 5056bc506b4SIdo Schimmel 5066bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 5076bc506b4SIdo Schimmel int offload_fwd_mark; 5086bc506b4SIdo Schimmel #endif 50968b7c895SHerbert Xu }; 51068b7c895SHerbert Xu 51168b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 51268b7c895SHerbert Xu 51332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 51432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 51532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 51632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 51732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 51832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 51928a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 52028a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 52128a16c97Sstephen hemminger 52228a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 52328a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 52428a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 52528a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 52628a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 52728a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 52828a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 52928a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 53028a16c97Sstephen hemminger 53128a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 53228a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 53328a16c97Sstephen hemminger 5341da177e4SLinus Torvalds /* called under bridge lock */ 5351da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 5361da177e4SLinus Torvalds { 5371da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 5381da177e4SLinus Torvalds } 5391da177e4SLinus Torvalds 5402594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 5412594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 5422594e906SNikolay Aleksandrov { 5432594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 5442594e906SNikolay Aleksandrov } 5452594e906SNikolay Aleksandrov 5462594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 5472594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 5482594e906SNikolay Aleksandrov { 5492594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 5502594e906SNikolay Aleksandrov } 5512594e906SNikolay Aleksandrov 5526be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 5532594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 5542594e906SNikolay Aleksandrov { 5552594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 5562594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 5572594e906SNikolay Aleksandrov return true; 5582594e906SNikolay Aleksandrov else 5592594e906SNikolay Aleksandrov return false; 5602594e906SNikolay Aleksandrov } 5612594e906SNikolay Aleksandrov 5622594e906SNikolay Aleksandrov return true; 5632594e906SNikolay Aleksandrov } 5642594e906SNikolay Aleksandrov 5655d1fcaf3SNikolay Aleksandrov static inline bool nbp_state_should_learn(const struct net_bridge_port *p) 5665d1fcaf3SNikolay Aleksandrov { 5675d1fcaf3SNikolay Aleksandrov return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; 5685d1fcaf3SNikolay Aleksandrov } 5695d1fcaf3SNikolay Aleksandrov 5708f4cc940SNikolay Aleksandrov static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack) 5715a46facbSNikolay Aleksandrov { 5728f4cc940SNikolay Aleksandrov bool ret = vid > 0 && vid < VLAN_VID_MASK; 5738f4cc940SNikolay Aleksandrov 5748f4cc940SNikolay Aleksandrov if (!ret) 5758f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid"); 5768f4cc940SNikolay Aleksandrov 5778f4cc940SNikolay Aleksandrov return ret; 5785a46facbSNikolay Aleksandrov } 5795a46facbSNikolay Aleksandrov 5805a46facbSNikolay Aleksandrov static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, 5818f4cc940SNikolay Aleksandrov const struct bridge_vlan_info *last, 5828f4cc940SNikolay Aleksandrov struct netlink_ext_ack *extack) 5835a46facbSNikolay Aleksandrov { 5845a46facbSNikolay Aleksandrov /* pvid flag is not allowed in ranges */ 5858f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_PVID) { 5868f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range"); 5875a46facbSNikolay Aleksandrov return false; 5888f4cc940SNikolay Aleksandrov } 5895a46facbSNikolay Aleksandrov 5905a46facbSNikolay Aleksandrov /* when cur is the range end, check if: 5915a46facbSNikolay Aleksandrov * - it has range start flag 5925a46facbSNikolay Aleksandrov * - range ids are invalid (end is equal to or before start) 5935a46facbSNikolay Aleksandrov */ 5945a46facbSNikolay Aleksandrov if (last) { 5958f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { 5968f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one"); 5975a46facbSNikolay Aleksandrov return false; 5988f4cc940SNikolay Aleksandrov } else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) { 5998f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing"); 6008f4cc940SNikolay Aleksandrov return false; 6018f4cc940SNikolay Aleksandrov } else if (cur->vid <= last->vid) { 6028f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); 6038f4cc940SNikolay Aleksandrov return false; 6048f4cc940SNikolay Aleksandrov } 6058f4cc940SNikolay Aleksandrov } 6068f4cc940SNikolay Aleksandrov 6078f4cc940SNikolay Aleksandrov /* check for required range flags */ 6088f4cc940SNikolay Aleksandrov if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 6098f4cc940SNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END))) { 6108f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing"); 6115a46facbSNikolay Aleksandrov return false; 6125a46facbSNikolay Aleksandrov } 6135a46facbSNikolay Aleksandrov 6145a46facbSNikolay Aleksandrov return true; 6155a46facbSNikolay Aleksandrov } 6165a46facbSNikolay Aleksandrov 617f545923bSNikolay Aleksandrov static inline int br_afspec_cmd_to_rtm(int cmd) 618f545923bSNikolay Aleksandrov { 619f545923bSNikolay Aleksandrov switch (cmd) { 620f545923bSNikolay Aleksandrov case RTM_SETLINK: 621f545923bSNikolay Aleksandrov return RTM_NEWVLAN; 622f545923bSNikolay Aleksandrov case RTM_DELLINK: 623f545923bSNikolay Aleksandrov return RTM_DELVLAN; 624f545923bSNikolay Aleksandrov } 625f545923bSNikolay Aleksandrov 626f545923bSNikolay Aleksandrov return 0; 627f545923bSNikolay Aleksandrov } 628f545923bSNikolay Aleksandrov 629ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 630ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 631ae75767eSNikolay Aleksandrov { 632ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 633ae75767eSNikolay Aleksandrov } 634ae75767eSNikolay Aleksandrov 635a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 636a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 637a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 638a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 639a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 640a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 641a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 642a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 643ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 644ae75767eSNikolay Aleksandrov 6451da177e4SLinus Torvalds /* br_device.c */ 646348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 647348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 648348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 649cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 65091d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 65191d2c34aSHerbert Xu struct sk_buff *skb) 65291d2c34aSHerbert Xu { 653f78ed220SEric Dumazet netpoll_send_skb(p->np, skb); 65491d2c34aSHerbert Xu } 65591d2c34aSHerbert Xu 656a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 657348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 65891d2c34aSHerbert Xu #else 6599f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 66091d2c34aSHerbert Xu struct sk_buff *skb) 66191d2c34aSHerbert Xu { 66291d2c34aSHerbert Xu } 66391d2c34aSHerbert Xu 664a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 66591d2c34aSHerbert Xu { 66691d2c34aSHerbert Xu return 0; 66791d2c34aSHerbert Xu } 66891d2c34aSHerbert Xu 66991d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 67091d2c34aSHerbert Xu { 67191d2c34aSHerbert Xu } 672cfb478daSstephen hemminger #endif 6731da177e4SLinus Torvalds 6741da177e4SLinus Torvalds /* br_fdb.c */ 675348662a1SJoe Perches int br_fdb_init(void); 676348662a1SJoe Perches void br_fdb_fini(void); 677eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 678eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 679348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 680424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 681424bb9c9SToshiaki Makita const struct net_bridge_port *p, 682424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 683348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 684348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 685f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 686348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 6871ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 688bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 689bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 690bfd0aeacSNikolay Aleksandrov __u16 vid); 691348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 692348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 693348662a1SJoe Perches unsigned long off); 694348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 695348662a1SJoe Perches const unsigned char *addr, u16 vid); 696348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 697be0c5677SNikolay Aleksandrov const unsigned char *addr, u16 vid, unsigned long flags); 69877162022SJohn Fastabend 699348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 700f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 701348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 70287b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 70387b0984eSPetr Machata struct netlink_ext_ack *extack); 704348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 705d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 70647674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 70747674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 70847674562SRoopa Prabhu struct netlink_ext_ack *extack); 7098db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 7108db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 7113aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 712161d82deSPetr Machata const unsigned char *addr, u16 vid, 713161d82deSPetr Machata bool swdev_notify); 7143aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 715161d82deSPetr Machata const unsigned char *addr, u16 vid, 716161d82deSPetr Machata bool swdev_notify); 7179fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 718e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 7191da177e4SLinus Torvalds 7201da177e4SLinus Torvalds /* br_forward.c */ 7218addd5e7SNikolay Aleksandrov enum br_pkt_type { 7228addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 7238addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 7248addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 7258addd5e7SNikolay Aleksandrov }; 7260c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 727b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 72837b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 7290c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 73037b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 7318addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 7321da177e4SLinus Torvalds 7337d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 7347d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 7357d850abdSNikolay Aleksandrov const struct sk_buff *skb) 7367d850abdSNikolay Aleksandrov { 7377d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 7387d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 7397d850abdSNikolay Aleksandrov } 7407d850abdSNikolay Aleksandrov 7411da177e4SLinus Torvalds /* br_if.c */ 742faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 743348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 744348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 745ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 746ca752be0SDavid Ahern struct netlink_ext_ack *extack); 747348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 748804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 749348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 750c8f44affSMichał Mirosław netdev_features_t features); 751e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 7522796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 7532756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 7541da177e4SLinus Torvalds 7551da177e4SLinus Torvalds /* br_input.c */ 7560c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 7579eb8eff0SVladimir Oltean rx_handler_func_t *br_get_rx_handler(const struct net_device *dev); 7581da177e4SLinus Torvalds 759*90c628ddSHenrik Bjoernlund struct br_frame_type { 760*90c628ddSHenrik Bjoernlund __be16 type; 761*90c628ddSHenrik Bjoernlund int (*frame_handler)(struct net_bridge_port *port, 762*90c628ddSHenrik Bjoernlund struct sk_buff *skb); 763*90c628ddSHenrik Bjoernlund struct hlist_node list; 764*90c628ddSHenrik Bjoernlund }; 765*90c628ddSHenrik Bjoernlund 766*90c628ddSHenrik Bjoernlund void br_add_frame(struct net_bridge *br, struct br_frame_type *ft); 767*90c628ddSHenrik Bjoernlund void br_del_frame(struct net_bridge *br, struct br_frame_type *ft); 768*90c628ddSHenrik Bjoernlund 769859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 770859828c0SJiri Pirko { 7719eb8eff0SVladimir Oltean return rcu_dereference(dev->rx_handler) == br_get_rx_handler(dev); 772859828c0SJiri Pirko } 773859828c0SJiri Pirko 7744d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 7754d4fd361SPetr Machata { 7769eb8eff0SVladimir Oltean return rcu_dereference_rtnl(dev->rx_handler) == br_get_rx_handler(dev); 7774d4fd361SPetr Machata } 7784d4fd361SPetr Machata 779859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 780859828c0SJiri Pirko { 781859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 782859828c0SJiri Pirko } 783859828c0SJiri Pirko 7844d4fd361SPetr Machata static inline struct net_bridge_port * 7854d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 7864d4fd361SPetr Machata { 7874d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 7884d4fd361SPetr Machata } 7894d4fd361SPetr Machata 7901da177e4SLinus Torvalds /* br_ioctl.c */ 791348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 792348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 793348662a1SJoe Perches void __user *arg); 7941da177e4SLinus Torvalds 795eb1d1641SHerbert Xu /* br_multicast.c */ 796eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 797348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 798fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 799348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 800eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 8011080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 802348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 803348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 804348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 805348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 806348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 807348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 808e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 80937b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 81037b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 811348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 812348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 813348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 814348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 815348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 8165e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 817aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 818aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 819aa2ae3e7SNikolay Aleksandrov #endif 820348662a1SJoe Perches struct net_bridge_mdb_entry * 82119e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 822348662a1SJoe Perches struct net_bridge_mdb_entry * 82319e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 824348662a1SJoe Perches struct net_bridge_port_group * 825348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 826762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 8278b671779SNikolay Aleksandrov unsigned char flags, const unsigned char *src, 8288f8cb77eSNikolay Aleksandrov u8 filter_mode, u8 rt_protocol); 82919e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 83019e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 83181f19838SNikolay Aleksandrov void br_mdb_notify(struct net_device *dev, struct net_bridge_mdb_entry *mp, 83281f19838SNikolay Aleksandrov struct net_bridge_port_group *pg, int type); 833949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 834949f1e39SSatish Ashok int type); 835681590bdSNikolay Aleksandrov void br_multicast_del_pg(struct net_bridge_mdb_entry *mp, 836681590bdSNikolay Aleksandrov struct net_bridge_port_group *pg, 837681590bdSNikolay Aleksandrov struct net_bridge_port_group __rcu **pp); 8381080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 839a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 8401080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 841b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 8421080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 8431080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 8441080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 84519e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 84619e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 8471bc844eeSNikolay Aleksandrov void br_multicast_host_join(struct net_bridge_mdb_entry *mp, bool notify); 8481bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 8498266a049SNikolay Aleksandrov void br_multicast_star_g_handle_mode(struct net_bridge_port_group *pg, 8508266a049SNikolay Aleksandrov u8 filter_mode); 8518266a049SNikolay Aleksandrov void br_multicast_sg_add_exclude_ports(struct net_bridge_mdb_entry *star_mp, 8528266a049SNikolay Aleksandrov struct net_bridge_port_group *sg); 85385b35269SSridhar Samudrala 854cfd56754SCong Wang #define mlock_dereference(X, br) \ 855cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 856cfd56754SCong Wang 85785b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 85885b35269SSridhar Samudrala { 85985b35269SSridhar Samudrala return br->multicast_router == 2 || 86085b35269SSridhar Samudrala (br->multicast_router == 1 && 86185b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 86285b35269SSridhar Samudrala } 863b00589afSLinus Lüssing 864cc0fdd80SLinus Lüssing static inline bool 865cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 8660888d5f3Sdaniel struct bridge_mcast_other_query *querier, 8670888d5f3Sdaniel const bool is_ipv6) 868b00589afSLinus Lüssing { 8690888d5f3Sdaniel bool own_querier_enabled; 8700888d5f3Sdaniel 871675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 872675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 8730888d5f3Sdaniel own_querier_enabled = false; 8740888d5f3Sdaniel else 8750888d5f3Sdaniel own_querier_enabled = true; 8760888d5f3Sdaniel } else { 8770888d5f3Sdaniel own_querier_enabled = false; 8780888d5f3Sdaniel } 8790888d5f3Sdaniel 880cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 8810888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 882cc0fdd80SLinus Lüssing } 883cc0fdd80SLinus Lüssing 884cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 885cc0fdd80SLinus Lüssing struct ethhdr *eth) 886cc0fdd80SLinus Lüssing { 887cc0fdd80SLinus Lüssing switch (eth->h_proto) { 888cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 8890888d5f3Sdaniel return __br_multicast_querier_exists(br, 8900888d5f3Sdaniel &br->ip4_other_query, false); 891cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 892cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 8930888d5f3Sdaniel return __br_multicast_querier_exists(br, 8940888d5f3Sdaniel &br->ip6_other_query, true); 895cc0fdd80SLinus Lüssing #endif 896cc0fdd80SLinus Lüssing default: 897cc0fdd80SLinus Lüssing return false; 898cc0fdd80SLinus Lüssing } 899b00589afSLinus Lüssing } 9001080ab95SNikolay Aleksandrov 90188d4bd18SNikolay Aleksandrov static inline bool br_multicast_is_star_g(const struct br_ip *ip) 90288d4bd18SNikolay Aleksandrov { 90388d4bd18SNikolay Aleksandrov switch (ip->proto) { 90488d4bd18SNikolay Aleksandrov case htons(ETH_P_IP): 90588d4bd18SNikolay Aleksandrov return ipv4_is_zeronet(ip->src.ip4); 90688d4bd18SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 90788d4bd18SNikolay Aleksandrov case htons(ETH_P_IPV6): 90888d4bd18SNikolay Aleksandrov return ipv6_addr_any(&ip->src.ip6); 90988d4bd18SNikolay Aleksandrov #endif 91088d4bd18SNikolay Aleksandrov default: 91188d4bd18SNikolay Aleksandrov return false; 91288d4bd18SNikolay Aleksandrov } 91388d4bd18SNikolay Aleksandrov } 91488d4bd18SNikolay Aleksandrov 9158266a049SNikolay Aleksandrov static inline bool br_multicast_should_handle_mode(const struct net_bridge *br, 9168266a049SNikolay Aleksandrov __be16 proto) 9178266a049SNikolay Aleksandrov { 9188266a049SNikolay Aleksandrov switch (proto) { 9198266a049SNikolay Aleksandrov case htons(ETH_P_IP): 9208266a049SNikolay Aleksandrov return !!(br->multicast_igmp_version == 3); 9218266a049SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 9228266a049SNikolay Aleksandrov case htons(ETH_P_IPV6): 9238266a049SNikolay Aleksandrov return !!(br->multicast_mld_version == 2); 9248266a049SNikolay Aleksandrov #endif 9258266a049SNikolay Aleksandrov default: 9268266a049SNikolay Aleksandrov return false; 9278266a049SNikolay Aleksandrov } 9288266a049SNikolay Aleksandrov } 9298266a049SNikolay Aleksandrov 9301080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 9311080ab95SNikolay Aleksandrov { 9321080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 9331080ab95SNikolay Aleksandrov } 93442c11ccfSNikolay Aleksandrov 93542c11ccfSNikolay Aleksandrov static inline unsigned long br_multicast_lmqt(const struct net_bridge *br) 93642c11ccfSNikolay Aleksandrov { 93742c11ccfSNikolay Aleksandrov return br->multicast_last_member_interval * 93842c11ccfSNikolay Aleksandrov br->multicast_last_member_count; 93942c11ccfSNikolay Aleksandrov } 9400436862eSNikolay Aleksandrov 9410436862eSNikolay Aleksandrov static inline unsigned long br_multicast_gmi(const struct net_bridge *br) 9420436862eSNikolay Aleksandrov { 9430436862eSNikolay Aleksandrov /* use the RFC default of 2 for QRV */ 9440436862eSNikolay Aleksandrov return 2 * br->multicast_query_interval + 9450436862eSNikolay Aleksandrov br->multicast_query_response_interval; 9460436862eSNikolay Aleksandrov } 947eb1d1641SHerbert Xu #else 948eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 949eb1d1641SHerbert Xu struct net_bridge_port *port, 95006499098SVlad Yasevich struct sk_buff *skb, 95106499098SVlad Yasevich u16 vid) 952eb1d1641SHerbert Xu { 953eb1d1641SHerbert Xu return 0; 954eb1d1641SHerbert Xu } 955eb1d1641SHerbert Xu 956eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 957fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 958eb1d1641SHerbert Xu { 959eb1d1641SHerbert Xu return NULL; 960eb1d1641SHerbert Xu } 961eb1d1641SHerbert Xu 9621080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 963eb1d1641SHerbert Xu { 9641080ab95SNikolay Aleksandrov return 0; 965eb1d1641SHerbert Xu } 966eb1d1641SHerbert Xu 967eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 968eb1d1641SHerbert Xu { 969eb1d1641SHerbert Xu } 970eb1d1641SHerbert Xu 971eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 972eb1d1641SHerbert Xu { 973eb1d1641SHerbert Xu } 974eb1d1641SHerbert Xu 975eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 976eb1d1641SHerbert Xu { 977eb1d1641SHerbert Xu } 978eb1d1641SHerbert Xu 979eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 980eb1d1641SHerbert Xu { 981eb1d1641SHerbert Xu } 982eb1d1641SHerbert Xu 983eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 984eb1d1641SHerbert Xu { 985eb1d1641SHerbert Xu } 986eb1d1641SHerbert Xu 987eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 988eb1d1641SHerbert Xu { 989eb1d1641SHerbert Xu } 9905cb5e947SHerbert Xu 991a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 992a7ce45a7SNikolay Aleksandrov { 993a7ce45a7SNikolay Aleksandrov } 994a7ce45a7SNikolay Aleksandrov 99537b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 99637b090e6SNikolay Aleksandrov struct sk_buff *skb, 99737b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 9985cb5e947SHerbert Xu { 9995cb5e947SHerbert Xu } 10005cb5e947SHerbert Xu 1001eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 1002eb1d1641SHerbert Xu { 100303aaa9e2SGustavo A. R. Silva return false; 1004eb1d1641SHerbert Xu } 100537b090e6SNikolay Aleksandrov 1006cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 1007cc0fdd80SLinus Lüssing struct ethhdr *eth) 1008b00589afSLinus Lüssing { 1009b00589afSLinus Lüssing return false; 1010b00589afSLinus Lüssing } 101137b090e6SNikolay Aleksandrov 1012fdb184d1SRami Rosen static inline void br_mdb_init(void) 1013fdb184d1SRami Rosen { 1014fdb184d1SRami Rosen } 101537b090e6SNikolay Aleksandrov 1016fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 1017fdb184d1SRami Rosen { 1018fdb184d1SRami Rosen } 10191080ab95SNikolay Aleksandrov 102019e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 102119e3a9c9SNikolay Aleksandrov { 102219e3a9c9SNikolay Aleksandrov return 0; 102319e3a9c9SNikolay Aleksandrov } 102419e3a9c9SNikolay Aleksandrov 102519e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 102619e3a9c9SNikolay Aleksandrov { 102719e3a9c9SNikolay Aleksandrov } 102819e3a9c9SNikolay Aleksandrov 10291080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 10301080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 1031a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 1032a65056ecSNikolay Aleksandrov u8 type, u8 dir) 10331080ab95SNikolay Aleksandrov { 10341080ab95SNikolay Aleksandrov } 10351080ab95SNikolay Aleksandrov 10361080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 10371080ab95SNikolay Aleksandrov { 10381080ab95SNikolay Aleksandrov return 0; 10391080ab95SNikolay Aleksandrov } 10401080ab95SNikolay Aleksandrov 1041b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 1042b6fe0440SIdo Schimmel { 1043b6fe0440SIdo Schimmel } 1044b6fe0440SIdo Schimmel 10451080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 10461080ab95SNikolay Aleksandrov { 10471080ab95SNikolay Aleksandrov return 0; 10481080ab95SNikolay Aleksandrov } 104985b35269SSridhar Samudrala #endif 1050eb1d1641SHerbert Xu 1051243a2e63SVlad Yasevich /* br_vlan.c */ 1052243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 105377751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 105477751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 1055a580c76dSNikolay Aleksandrov u16 *vid, u8 *state); 105677751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 105785f46c6bSVlad Yasevich const struct sk_buff *skb); 1058e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 1059348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 106011538d03SRoopa Prabhu const struct net_bridge_port *port, 10612594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 106278851988SVlad Yasevich struct sk_buff *skb); 1063f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1064169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1065348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 1066348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 10672594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 1068204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 1069a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 1070348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 1071d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 1072204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 10736dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 10749163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 10755be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 107696a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 1077169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 1078169327d5SPetr Machata struct netlink_ext_ack *extack); 1079f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1080169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1081348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 1082348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 1083169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 10842594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 1085a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 1086a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 10879c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 1088091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 10899c0ec2e7SMike Manning void *ptr); 10908dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void); 10918dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void); 1092cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 1093cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1094cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1095cf5bddb9SNikolay Aleksandrov int cmd); 1096a5d29ae2SNikolay Aleksandrov bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1097a5d29ae2SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 1098a37b85c9SVlad Yasevich 10992594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 1100a37b85c9SVlad Yasevich const struct net_bridge *br) 1101a37b85c9SVlad Yasevich { 1102907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 1103a37b85c9SVlad Yasevich } 1104a37b85c9SVlad Yasevich 11052594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 1106a37b85c9SVlad Yasevich const struct net_bridge_port *p) 1107a37b85c9SVlad Yasevich { 1108907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 1109907b1e6eSNikolay Aleksandrov } 1110907b1e6eSNikolay Aleksandrov 1111907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1112907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1113907b1e6eSNikolay Aleksandrov { 1114907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 1115907b1e6eSNikolay Aleksandrov } 1116907b1e6eSNikolay Aleksandrov 1117907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1118907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1119907b1e6eSNikolay Aleksandrov { 1120907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 1121a37b85c9SVlad Yasevich } 1122a37b85c9SVlad Yasevich 1123a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 1124a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 1125a37b85c9SVlad Yasevich */ 1126a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 1127a37b85c9SVlad Yasevich { 1128a37b85c9SVlad Yasevich int err = 0; 1129a37b85c9SVlad Yasevich 11302594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 11315978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 11322594e906SNikolay Aleksandrov } else { 1133a37b85c9SVlad Yasevich *vid = 0; 1134a37b85c9SVlad Yasevich err = -EINVAL; 1135a37b85c9SVlad Yasevich } 1136a37b85c9SVlad Yasevich 1137a37b85c9SVlad Yasevich return err; 1138a37b85c9SVlad Yasevich } 113978851988SVlad Yasevich 114077751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 114178851988SVlad Yasevich { 114277751ee8SNikolay Aleksandrov if (!vg) 11435be5a2dfSVlad Yasevich return 0; 11445be5a2dfSVlad Yasevich 114578851988SVlad Yasevich smp_rmb(); 114677751ee8SNikolay Aleksandrov return vg->pvid; 114778851988SVlad Yasevich } 114878851988SVlad Yasevich 11498dcea187SNikolay Aleksandrov static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) 11508dcea187SNikolay Aleksandrov { 11518dcea187SNikolay Aleksandrov return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags; 11528dcea187SNikolay Aleksandrov } 1153243a2e63SVlad Yasevich #else 115477751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 115577751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 11562594e906SNikolay Aleksandrov struct sk_buff *skb, 1157a580c76dSNikolay Aleksandrov u16 *vid, u8 *state) 11582594e906SNikolay Aleksandrov { 11592594e906SNikolay Aleksandrov return true; 11602594e906SNikolay Aleksandrov } 11612594e906SNikolay Aleksandrov 11622594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 116385f46c6bSVlad Yasevich const struct sk_buff *skb) 116485f46c6bSVlad Yasevich { 116585f46c6bSVlad Yasevich return true; 116685f46c6bSVlad Yasevich } 116785f46c6bSVlad Yasevich 1168e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 1169e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 1170e0d7968aSToshiaki Makita { 1171e0d7968aSToshiaki Makita return true; 1172e0d7968aSToshiaki Makita } 1173e0d7968aSToshiaki Makita 117478851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 117511538d03SRoopa Prabhu const struct net_bridge_port *port, 11762594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 117778851988SVlad Yasevich struct sk_buff *skb) 117878851988SVlad Yasevich { 117978851988SVlad Yasevich return skb; 118078851988SVlad Yasevich } 118178851988SVlad Yasevich 1182f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1183169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1184243a2e63SVlad Yasevich { 1185f418af63SNikolay Aleksandrov *changed = false; 1186243a2e63SVlad Yasevich return -EOPNOTSUPP; 1187243a2e63SVlad Yasevich } 1188243a2e63SVlad Yasevich 1189243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 1190243a2e63SVlad Yasevich { 1191243a2e63SVlad Yasevich return -EOPNOTSUPP; 1192243a2e63SVlad Yasevich } 1193243a2e63SVlad Yasevich 1194243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1195243a2e63SVlad Yasevich { 1196243a2e63SVlad Yasevich } 1197243a2e63SVlad Yasevich 1198204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1199204177f3SToshiaki Makita { 1200204177f3SToshiaki Makita } 1201204177f3SToshiaki Makita 12025be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 12038580e211SToshiaki Makita { 12045be5a2dfSVlad Yasevich return 0; 12058580e211SToshiaki Makita } 12068580e211SToshiaki Makita 1207f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1208169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1209243a2e63SVlad Yasevich { 1210f418af63SNikolay Aleksandrov *changed = false; 1211243a2e63SVlad Yasevich return -EOPNOTSUPP; 1212243a2e63SVlad Yasevich } 1213243a2e63SVlad Yasevich 1214243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1215243a2e63SVlad Yasevich { 1216243a2e63SVlad Yasevich return -EOPNOTSUPP; 1217243a2e63SVlad Yasevich } 1218243a2e63SVlad Yasevich 1219243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1220243a2e63SVlad Yasevich { 1221243a2e63SVlad Yasevich } 1222243a2e63SVlad Yasevich 12232594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 12242594e906SNikolay Aleksandrov u16 vid) 1225a37b85c9SVlad Yasevich { 1226a37b85c9SVlad Yasevich return NULL; 1227a37b85c9SVlad Yasevich } 1228bc9a25d2SVlad Yasevich 1229169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1230169327d5SPetr Machata struct netlink_ext_ack *extack) 12315be5a2dfSVlad Yasevich { 12325be5a2dfSVlad Yasevich return 0; 12335be5a2dfSVlad Yasevich } 12345be5a2dfSVlad Yasevich 123578851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1236a37b85c9SVlad Yasevich { 1237a37b85c9SVlad Yasevich return 0; 1238a37b85c9SVlad Yasevich } 12392594e906SNikolay Aleksandrov 124077751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 124178851988SVlad Yasevich { 12423df6bf45SVlad Yasevich return 0; 124378851988SVlad Yasevich } 12442796d0c6SVlad Yasevich 1245a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1246a7854037SNikolay Aleksandrov unsigned long val) 1247a7854037SNikolay Aleksandrov { 1248a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1249a7854037SNikolay Aleksandrov } 12502594e906SNikolay Aleksandrov 12512594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 12522594e906SNikolay Aleksandrov u32 filter_mask) 12532594e906SNikolay Aleksandrov { 12542594e906SNikolay Aleksandrov return 0; 12552594e906SNikolay Aleksandrov } 12562594e906SNikolay Aleksandrov 12572594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 12582594e906SNikolay Aleksandrov const struct net_bridge *br) 12592594e906SNikolay Aleksandrov { 12602594e906SNikolay Aleksandrov return NULL; 12612594e906SNikolay Aleksandrov } 12622594e906SNikolay Aleksandrov 12632594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 12642594e906SNikolay Aleksandrov const struct net_bridge_port *p) 12652594e906SNikolay Aleksandrov { 12662594e906SNikolay Aleksandrov return NULL; 12672594e906SNikolay Aleksandrov } 1268907b1e6eSNikolay Aleksandrov 1269907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1270907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1271907b1e6eSNikolay Aleksandrov { 1272907b1e6eSNikolay Aleksandrov return NULL; 1273907b1e6eSNikolay Aleksandrov } 1274907b1e6eSNikolay Aleksandrov 1275907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1276907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1277907b1e6eSNikolay Aleksandrov { 1278907b1e6eSNikolay Aleksandrov return NULL; 1279907b1e6eSNikolay Aleksandrov } 1280a60c0903SNikolay Aleksandrov 1281a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1282a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1283a60c0903SNikolay Aleksandrov { 1284a60c0903SNikolay Aleksandrov } 12859c0ec2e7SMike Manning 12869c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 12879c0ec2e7SMike Manning unsigned long event) 12889c0ec2e7SMike Manning { 12899c0ec2e7SMike Manning } 12909c0ec2e7SMike Manning 1291091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 12929c0ec2e7SMike Manning unsigned long event, void *ptr) 12939c0ec2e7SMike Manning { 1294091adf9bSNikolay Aleksandrov return 0; 12959c0ec2e7SMike Manning } 12968dcea187SNikolay Aleksandrov 12978dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_init(void) 12988dcea187SNikolay Aleksandrov { 12998dcea187SNikolay Aleksandrov } 13008dcea187SNikolay Aleksandrov 13018dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_uninit(void) 13028dcea187SNikolay Aleksandrov { 13038dcea187SNikolay Aleksandrov } 1304cf5bddb9SNikolay Aleksandrov 1305cf5bddb9SNikolay Aleksandrov static inline void br_vlan_notify(const struct net_bridge *br, 1306cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1307cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1308cf5bddb9SNikolay Aleksandrov int cmd) 1309cf5bddb9SNikolay Aleksandrov { 1310cf5bddb9SNikolay Aleksandrov } 1311528ae84aSNikolay Aleksandrov 1312528ae84aSNikolay Aleksandrov static inline bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1313528ae84aSNikolay Aleksandrov const struct net_bridge_vlan *range_end) 1314528ae84aSNikolay Aleksandrov { 1315528ae84aSNikolay Aleksandrov return true; 1316528ae84aSNikolay Aleksandrov } 1317243a2e63SVlad Yasevich #endif 1318243a2e63SVlad Yasevich 13197a53e718SNikolay Aleksandrov /* br_vlan_options.c */ 13207a53e718SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 132199f7c5e0SNikolay Aleksandrov bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, 132299f7c5e0SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 13237a53e718SNikolay Aleksandrov bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v); 13247a53e718SNikolay Aleksandrov size_t br_vlan_opts_nl_size(void); 1325a5d29ae2SNikolay Aleksandrov int br_vlan_process_options(const struct net_bridge *br, 1326a5d29ae2SNikolay Aleksandrov const struct net_bridge_port *p, 1327a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_start, 1328a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_end, 1329a5d29ae2SNikolay Aleksandrov struct nlattr **tb, 1330a5d29ae2SNikolay Aleksandrov struct netlink_ext_ack *extack); 1331a580c76dSNikolay Aleksandrov 1332a580c76dSNikolay Aleksandrov /* vlan state manipulation helpers using *_ONCE to annotate lock-free access */ 1333a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v) 1334a580c76dSNikolay Aleksandrov { 1335a580c76dSNikolay Aleksandrov return READ_ONCE(v->state); 1336a580c76dSNikolay Aleksandrov } 1337a580c76dSNikolay Aleksandrov 1338a580c76dSNikolay Aleksandrov static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state) 1339a580c76dSNikolay Aleksandrov { 1340a580c76dSNikolay Aleksandrov WRITE_ONCE(v->state, state); 1341a580c76dSNikolay Aleksandrov } 1342a580c76dSNikolay Aleksandrov 1343a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg) 1344a580c76dSNikolay Aleksandrov { 1345a580c76dSNikolay Aleksandrov return READ_ONCE(vg->pvid_state); 1346a580c76dSNikolay Aleksandrov } 1347a580c76dSNikolay Aleksandrov 1348a580c76dSNikolay Aleksandrov static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg, 1349a580c76dSNikolay Aleksandrov u8 state) 1350a580c76dSNikolay Aleksandrov { 1351a580c76dSNikolay Aleksandrov WRITE_ONCE(vg->pvid_state, state); 1352a580c76dSNikolay Aleksandrov } 1353a580c76dSNikolay Aleksandrov 1354a580c76dSNikolay Aleksandrov /* learn_allow is true at ingress and false at egress */ 1355a580c76dSNikolay Aleksandrov static inline bool br_vlan_state_allowed(u8 state, bool learn_allow) 1356a580c76dSNikolay Aleksandrov { 1357a580c76dSNikolay Aleksandrov switch (state) { 1358a580c76dSNikolay Aleksandrov case BR_STATE_LEARNING: 1359a580c76dSNikolay Aleksandrov return learn_allow; 1360a580c76dSNikolay Aleksandrov case BR_STATE_FORWARDING: 1361a580c76dSNikolay Aleksandrov return true; 1362a580c76dSNikolay Aleksandrov default: 1363a580c76dSNikolay Aleksandrov return false; 1364a580c76dSNikolay Aleksandrov } 1365a580c76dSNikolay Aleksandrov } 13667a53e718SNikolay Aleksandrov #endif 13677a53e718SNikolay Aleksandrov 13681a4ba64dSPablo Neira Ayuso struct nf_br_ops { 13691a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 13701a4ba64dSPablo Neira Ayuso }; 13711a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 13721a4ba64dSPablo Neira Ayuso 13731da177e4SLinus Torvalds /* br_netfilter.c */ 137434666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 137534666d46SPablo Neira Ayuso int br_nf_core_init(void); 137634666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1377348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1378c0909713SStephen Hemminger #else 137934666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 138034666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 13814adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1382c0909713SStephen Hemminger #endif 13831da177e4SLinus Torvalds 13841da177e4SLinus Torvalds /* br_stp.c */ 1385775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1386348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1387348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1388348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 13891da177e4SLinus Torvalds 1390348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1391348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1392348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1393348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 139482dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 13959e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 139614f98f25Sstephen hemminger 139714f98f25Sstephen hemminger 13981da177e4SLinus Torvalds /* br_stp_if.c */ 1399348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1400348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1401419dba8aSHoratiu Vultur int br_stp_set_enabled(struct net_bridge *br, unsigned long val, 1402419dba8aSHoratiu Vultur struct netlink_ext_ack *extack); 1403348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1404348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1405348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1406348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1407348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1408348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1409348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1410348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 14111da177e4SLinus Torvalds 14121da177e4SLinus Torvalds /* br_stp_bpdu.c */ 14137c85fbf0SPatrick McHardy struct stp_proto; 1414348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 14157c85fbf0SPatrick McHardy struct net_device *dev); 14161da177e4SLinus Torvalds 14171da177e4SLinus Torvalds /* br_stp_timer.c */ 1418348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1419348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1420348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 14211da177e4SLinus Torvalds 14221da177e4SLinus Torvalds /* br.c */ 1423e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1424da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1425da678292SMichał Mirosław #endif 14261da177e4SLinus Torvalds 142765369933SHoratiu Vultur /* br_mrp.c */ 142865369933SHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 142965369933SHoratiu Vultur int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 143065369933SHoratiu Vultur struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 143165369933SHoratiu Vultur bool br_mrp_enabled(struct net_bridge *br); 143265369933SHoratiu Vultur void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p); 1433df42ef22SHoratiu Vultur int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br); 143465369933SHoratiu Vultur #else 143565369933SHoratiu Vultur static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 143665369933SHoratiu Vultur struct nlattr *attr, int cmd, 143765369933SHoratiu Vultur struct netlink_ext_ack *extack) 143865369933SHoratiu Vultur { 143965369933SHoratiu Vultur return -EOPNOTSUPP; 144065369933SHoratiu Vultur } 144165369933SHoratiu Vultur 144265369933SHoratiu Vultur static inline bool br_mrp_enabled(struct net_bridge *br) 144365369933SHoratiu Vultur { 14448741e184SJason Yan return false; 144565369933SHoratiu Vultur } 144665369933SHoratiu Vultur 144765369933SHoratiu Vultur static inline void br_mrp_port_del(struct net_bridge *br, 144865369933SHoratiu Vultur struct net_bridge_port *p) 144965369933SHoratiu Vultur { 145065369933SHoratiu Vultur } 1451df42ef22SHoratiu Vultur 1452df42ef22SHoratiu Vultur static inline int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br) 1453df42ef22SHoratiu Vultur { 1454df42ef22SHoratiu Vultur return 0; 1455df42ef22SHoratiu Vultur } 1456df42ef22SHoratiu Vultur 145765369933SHoratiu Vultur #endif 145865369933SHoratiu Vultur 145911dc1f36SStephen Hemminger /* br_netlink.c */ 1460149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1461348662a1SJoe Perches int br_netlink_init(void); 1462348662a1SJoe Perches void br_netlink_fini(void); 146392899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 146492899063SNikolay Aleksandrov const struct net_bridge_port *port); 14652fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 14662fd527b7SPetr Machata struct netlink_ext_ack *extack); 1467add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1468348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 146946c264daSNicolas Dichtel u32 filter_mask, int nlflags); 1470f26b2965SNikolay Aleksandrov int br_process_vlan_info(struct net_bridge *br, 1471f26b2965SNikolay Aleksandrov struct net_bridge_port *p, int cmd, 1472f26b2965SNikolay Aleksandrov struct bridge_vlan_info *vinfo_curr, 1473f26b2965SNikolay Aleksandrov struct bridge_vlan_info **vinfo_last, 1474f26b2965SNikolay Aleksandrov bool *changed, 1475f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack); 147611dc1f36SStephen Hemminger 14771da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 14781da177e4SLinus Torvalds /* br_sysfs_if.c */ 147952cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1480348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1481348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 14821da177e4SLinus Torvalds 14831da177e4SLinus Torvalds /* br_sysfs_br.c */ 1484348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1485348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 14861da177e4SLinus Torvalds 14871da177e4SLinus Torvalds #else 14881da177e4SLinus Torvalds 14890cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 14900cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 14910cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 14920cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 14931da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 14941da177e4SLinus Torvalds 14956bc506b4SIdo Schimmel /* br_switchdev.c */ 14966bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 14976bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 14986bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 14996bc506b4SIdo Schimmel struct sk_buff *skb); 15006bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 15016bc506b4SIdo Schimmel const struct sk_buff *skb); 15023922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 15033922285dSArkadi Sharshevsky unsigned long flags, 15043922285dSArkadi Sharshevsky unsigned long mask); 15056b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 15066b26b51bSArkadi Sharshevsky int type); 1507169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1508169327d5SPetr Machata struct netlink_ext_ack *extack); 1509d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1510f1c2eddfSIdo Schimmel 1511f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1512f1c2eddfSIdo Schimmel { 1513f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1514f1c2eddfSIdo Schimmel } 15156bc506b4SIdo Schimmel #else 15166bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 15176bc506b4SIdo Schimmel { 15186bc506b4SIdo Schimmel return 0; 15196bc506b4SIdo Schimmel } 15206bc506b4SIdo Schimmel 15216bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 15226bc506b4SIdo Schimmel struct sk_buff *skb) 15236bc506b4SIdo Schimmel { 15246bc506b4SIdo Schimmel } 15256bc506b4SIdo Schimmel 15266bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 15276bc506b4SIdo Schimmel const struct sk_buff *skb) 15286bc506b4SIdo Schimmel { 15296bc506b4SIdo Schimmel return true; 15306bc506b4SIdo Schimmel } 15313922285dSArkadi Sharshevsky 15323922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 15333922285dSArkadi Sharshevsky unsigned long flags, 15343922285dSArkadi Sharshevsky unsigned long mask) 15353922285dSArkadi Sharshevsky { 15363922285dSArkadi Sharshevsky return 0; 15373922285dSArkadi Sharshevsky } 15386b26b51bSArkadi Sharshevsky 1539d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1540169327d5SPetr Machata u16 vid, u16 flags, 1541169327d5SPetr Machata struct netlink_ext_ack *extack) 1542d66e4348SPetr Machata { 1543d66e4348SPetr Machata return -EOPNOTSUPP; 1544d66e4348SPetr Machata } 1545d66e4348SPetr Machata 1546d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1547d66e4348SPetr Machata { 1548d66e4348SPetr Machata return -EOPNOTSUPP; 1549d66e4348SPetr Machata } 1550d66e4348SPetr Machata 15516b26b51bSArkadi Sharshevsky static inline void 15526b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 15536b26b51bSArkadi Sharshevsky { 15546b26b51bSArkadi Sharshevsky } 1555f1c2eddfSIdo Schimmel 1556f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1557f1c2eddfSIdo Schimmel { 1558f1c2eddfSIdo Schimmel } 15596bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 15606bc506b4SIdo Schimmel 1561057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1562821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1563057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1564057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1565ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1566ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1567ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 15681da177e4SLinus Torvalds #endif 1569