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 92efa5356bSRoopa Prabhu struct br_tunnel_info { 93efa5356bSRoopa Prabhu __be64 tunnel_id; 94efa5356bSRoopa Prabhu struct metadata_dst *tunnel_dst; 95efa5356bSRoopa Prabhu }; 96efa5356bSRoopa Prabhu 979d332e69SNikolay Aleksandrov /* private vlan flags */ 989d332e69SNikolay Aleksandrov enum { 999d332e69SNikolay Aleksandrov BR_VLFLAG_PER_PORT_STATS = BIT(0), 10027973793SIdo Schimmel BR_VLFLAG_ADDED_BY_SWITCHDEV = BIT(1), 1019d332e69SNikolay Aleksandrov }; 1029d332e69SNikolay Aleksandrov 1032594e906SNikolay Aleksandrov /** 1042594e906SNikolay Aleksandrov * struct net_bridge_vlan - per-vlan entry 1052594e906SNikolay Aleksandrov * 1062594e906SNikolay Aleksandrov * @vnode: rhashtable member 1072594e906SNikolay Aleksandrov * @vid: VLAN id 1082594e906SNikolay Aleksandrov * @flags: bridge vlan flags 1099d332e69SNikolay Aleksandrov * @priv_flags: private (in-kernel) bridge vlan flags 110a580c76dSNikolay Aleksandrov * @state: STP state (e.g. blocking, learning, forwarding) 1116dada9b1SNikolay Aleksandrov * @stats: per-cpu VLAN statistics 1122594e906SNikolay Aleksandrov * @br: if MASTER flag set, this points to a bridge struct 1132594e906SNikolay Aleksandrov * @port: if MASTER flag unset, this points to a port struct 1142594e906SNikolay Aleksandrov * @refcnt: if MASTER flag set, this is bumped for each port referencing it 1152594e906SNikolay Aleksandrov * @brvlan: if MASTER flag unset, this points to the global per-VLAN context 1162594e906SNikolay Aleksandrov * for this VLAN entry 1172594e906SNikolay Aleksandrov * @vlist: sorted list of VLAN entries 1182594e906SNikolay Aleksandrov * @rcu: used for entry destruction 1192594e906SNikolay Aleksandrov * 1202594e906SNikolay Aleksandrov * This structure is shared between the global per-VLAN entries contained in 1212594e906SNikolay Aleksandrov * the bridge rhashtable and the local per-port per-VLAN entries contained in 1222594e906SNikolay Aleksandrov * the port's rhashtable. The union entries should be interpreted depending on 1232594e906SNikolay Aleksandrov * the entry flags that are set. 1242594e906SNikolay Aleksandrov */ 1252594e906SNikolay Aleksandrov struct net_bridge_vlan { 1262594e906SNikolay Aleksandrov struct rhash_head vnode; 127efa5356bSRoopa Prabhu struct rhash_head tnode; 1282594e906SNikolay Aleksandrov u16 vid; 1292594e906SNikolay Aleksandrov u16 flags; 1309d332e69SNikolay Aleksandrov u16 priv_flags; 131a580c76dSNikolay Aleksandrov u8 state; 132281cc284SHeiner Kallweit struct pcpu_sw_netstats __percpu *stats; 133243a2e63SVlad Yasevich union { 134243a2e63SVlad Yasevich struct net_bridge *br; 1352594e906SNikolay Aleksandrov struct net_bridge_port *port; 1362594e906SNikolay Aleksandrov }; 1372594e906SNikolay Aleksandrov union { 13825127759SReshetova, Elena refcount_t refcnt; 1392594e906SNikolay Aleksandrov struct net_bridge_vlan *brvlan; 1402594e906SNikolay Aleksandrov }; 141efa5356bSRoopa Prabhu 142efa5356bSRoopa Prabhu struct br_tunnel_info tinfo; 143efa5356bSRoopa Prabhu 1442594e906SNikolay Aleksandrov struct list_head vlist; 1452594e906SNikolay Aleksandrov 146243a2e63SVlad Yasevich struct rcu_head rcu; 1472594e906SNikolay Aleksandrov }; 1482594e906SNikolay Aleksandrov 1492594e906SNikolay Aleksandrov /** 1502594e906SNikolay Aleksandrov * struct net_bridge_vlan_group 1512594e906SNikolay Aleksandrov * 1522594e906SNikolay Aleksandrov * @vlan_hash: VLAN entry rhashtable 1532594e906SNikolay Aleksandrov * @vlan_list: sorted VLAN entry list 1542594e906SNikolay Aleksandrov * @num_vlans: number of total VLAN entries 15577751ee8SNikolay Aleksandrov * @pvid: PVID VLAN id 156a580c76dSNikolay Aleksandrov * @pvid_state: PVID's STP state (e.g. forwarding, learning, blocking) 1572594e906SNikolay Aleksandrov * 1582594e906SNikolay Aleksandrov * IMPORTANT: Be careful when checking if there're VLAN entries using list 1592594e906SNikolay Aleksandrov * primitives because the bridge can have entries in its list which 1602594e906SNikolay Aleksandrov * are just for global context but not for filtering, i.e. they have 1612594e906SNikolay Aleksandrov * the master flag set but not the brentry flag. If you have to check 1622594e906SNikolay Aleksandrov * if there're "real" entries in the bridge please test @num_vlans 1632594e906SNikolay Aleksandrov */ 1642594e906SNikolay Aleksandrov struct net_bridge_vlan_group { 1652594e906SNikolay Aleksandrov struct rhashtable vlan_hash; 166efa5356bSRoopa Prabhu struct rhashtable tunnel_hash; 1672594e906SNikolay Aleksandrov struct list_head vlan_list; 1686cbdceebSVlad Yasevich u16 num_vlans; 16977751ee8SNikolay Aleksandrov u16 pvid; 170a580c76dSNikolay Aleksandrov u8 pvid_state; 171243a2e63SVlad Yasevich }; 172243a2e63SVlad Yasevich 1736869c3b0SNikolay Aleksandrov /* bridge fdb flags */ 1746869c3b0SNikolay Aleksandrov enum { 1756869c3b0SNikolay Aleksandrov BR_FDB_LOCAL, 17629e63fffSNikolay Aleksandrov BR_FDB_STATIC, 177e0458d9aSNikolay Aleksandrov BR_FDB_STICKY, 178ac3ca6afSNikolay Aleksandrov BR_FDB_ADDED_BY_USER, 179b5cd9f7cSNikolay Aleksandrov BR_FDB_ADDED_BY_EXT_LEARN, 180d38c6e3dSNikolay Aleksandrov BR_FDB_OFFLOADED, 18131cbc39bSNikolay Aleksandrov BR_FDB_NOTIFY, 18231cbc39bSNikolay Aleksandrov BR_FDB_NOTIFY_INACTIVE 1836869c3b0SNikolay Aleksandrov }; 1846869c3b0SNikolay Aleksandrov 185eb793583SNikolay Aleksandrov struct net_bridge_fdb_key { 186eb793583SNikolay Aleksandrov mac_addr addr; 187eb793583SNikolay Aleksandrov u16 vlan_id; 188eb793583SNikolay Aleksandrov }; 189eb793583SNikolay Aleksandrov 1901214628cSNikolay Aleksandrov struct net_bridge_fdb_entry { 191eb793583SNikolay Aleksandrov struct rhash_head rhnode; 1921da177e4SLinus Torvalds struct net_bridge_port *dst; 1931da177e4SLinus Torvalds 194eb793583SNikolay Aleksandrov struct net_bridge_fdb_key key; 195eb793583SNikolay Aleksandrov struct hlist_node fdb_node; 1966869c3b0SNikolay Aleksandrov unsigned long flags; 1971214628cSNikolay Aleksandrov 1981214628cSNikolay Aleksandrov /* write-heavy members should not affect lookups */ 1991214628cSNikolay Aleksandrov unsigned long updated ____cacheline_aligned_in_smp; 2001214628cSNikolay Aleksandrov unsigned long used; 2011214628cSNikolay Aleksandrov 202b22fbf22SNikolay Aleksandrov struct rcu_head rcu; 2031da177e4SLinus Torvalds }; 2041da177e4SLinus Torvalds 2059d06b6d8SElad Raz #define MDB_PG_FLAGS_PERMANENT BIT(0) 2069d06b6d8SElad Raz #define MDB_PG_FLAGS_OFFLOAD BIT(1) 2073247b272SNikolay Aleksandrov #define MDB_PG_FLAGS_FAST_LEAVE BIT(2) 2088266a049SNikolay Aleksandrov #define MDB_PG_FLAGS_STAR_EXCL BIT(3) 2099116ffbfSNikolay Aleksandrov #define MDB_PG_FLAGS_BLOCKED BIT(4) 2109d06b6d8SElad Raz 2118b671779SNikolay Aleksandrov #define PG_SRC_ENT_LIMIT 32 2128b671779SNikolay Aleksandrov 2138b671779SNikolay Aleksandrov #define BR_SGRP_F_DELETE BIT(0) 2148b671779SNikolay Aleksandrov #define BR_SGRP_F_SEND BIT(1) 215b0812368SNikolay Aleksandrov #define BR_SGRP_F_INSTALLED BIT(2) 2168b671779SNikolay Aleksandrov 217e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc { 218e12cec65SNikolay Aleksandrov struct hlist_node gc_node; 219e12cec65SNikolay Aleksandrov void (*destroy)(struct net_bridge_mcast_gc *gc); 220e12cec65SNikolay Aleksandrov }; 221e12cec65SNikolay Aleksandrov 2228b671779SNikolay Aleksandrov struct net_bridge_group_src { 2238b671779SNikolay Aleksandrov struct hlist_node node; 2248b671779SNikolay Aleksandrov 2258b671779SNikolay Aleksandrov struct br_ip addr; 2268b671779SNikolay Aleksandrov struct net_bridge_port_group *pg; 2278b671779SNikolay Aleksandrov u8 flags; 228438ef2d0SNikolay Aleksandrov u8 src_query_rexmit_cnt; 2298b671779SNikolay Aleksandrov struct timer_list timer; 2308b671779SNikolay Aleksandrov 2318b671779SNikolay Aleksandrov struct net_bridge *br; 232e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2338b671779SNikolay Aleksandrov struct rcu_head rcu; 2348b671779SNikolay Aleksandrov }; 2358b671779SNikolay Aleksandrov 236085b53c8SNikolay Aleksandrov struct net_bridge_port_group_sg_key { 237eb1d1641SHerbert Xu struct net_bridge_port *port; 2388ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 239085b53c8SNikolay Aleksandrov }; 240085b53c8SNikolay Aleksandrov 241085b53c8SNikolay Aleksandrov struct net_bridge_port_group { 242085b53c8SNikolay Aleksandrov struct net_bridge_port_group __rcu *next; 243085b53c8SNikolay Aleksandrov struct net_bridge_port_group_sg_key key; 244206e7323SThomas Martitz unsigned char eth_addr[ETH_ALEN] __aligned(2); 2459d06b6d8SElad Raz unsigned char flags; 2468b671779SNikolay Aleksandrov unsigned char filter_mode; 24742c11ccfSNikolay Aleksandrov unsigned char grp_query_rexmit_cnt; 2488f8cb77eSNikolay Aleksandrov unsigned char rt_protocol; 2496ec0d0eeSNikolay Aleksandrov 2508b671779SNikolay Aleksandrov struct hlist_head src_list; 2518b671779SNikolay Aleksandrov unsigned int src_ents; 2526ec0d0eeSNikolay Aleksandrov struct timer_list timer; 25342c11ccfSNikolay Aleksandrov struct timer_list rexmit_timer; 2546ec0d0eeSNikolay Aleksandrov struct hlist_node mglist; 255*8f07b831SNikolay Aleksandrov struct rb_root eht_set_tree; 256*8f07b831SNikolay Aleksandrov struct rb_root eht_host_tree; 2576ec0d0eeSNikolay Aleksandrov 258085b53c8SNikolay Aleksandrov struct rhash_head rhnode; 259e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2606ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 261eb1d1641SHerbert Xu }; 262eb1d1641SHerbert Xu 2631c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_entry { 26419e3a9c9SNikolay Aleksandrov struct rhash_head rhnode; 265eb1d1641SHerbert Xu struct net_bridge *br; 266e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 2678ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 268ff0fd34eSAndrew Lunn bool host_joined; 2696ec0d0eeSNikolay Aleksandrov 2706ec0d0eeSNikolay Aleksandrov struct timer_list timer; 27119e3a9c9SNikolay Aleksandrov struct hlist_node mdb_node; 2726ec0d0eeSNikolay Aleksandrov 273e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2746ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 275eb1d1641SHerbert Xu }; 276eb1d1641SHerbert Xu 2771f90c7f3SNikolay Aleksandrov struct net_bridge_port { 2781da177e4SLinus Torvalds struct net_bridge *br; 2791da177e4SLinus Torvalds struct net_device *dev; 2801da177e4SLinus Torvalds struct list_head list; 2811da177e4SLinus Torvalds 2821f90c7f3SNikolay Aleksandrov unsigned long flags; 2831f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 2841f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 2851f90c7f3SNikolay Aleksandrov #endif 2862756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 2871f90c7f3SNikolay Aleksandrov 2881da177e4SLinus Torvalds /* STP */ 2891da177e4SLinus Torvalds u8 priority; 2901da177e4SLinus Torvalds u8 state; 2911da177e4SLinus Torvalds u16 port_no; 2921da177e4SLinus Torvalds unsigned char topology_change_ack; 2931da177e4SLinus Torvalds unsigned char config_pending; 2941da177e4SLinus Torvalds port_id port_id; 2951da177e4SLinus Torvalds port_id designated_port; 2961da177e4SLinus Torvalds bridge_id designated_root; 2971da177e4SLinus Torvalds bridge_id designated_bridge; 2981da177e4SLinus Torvalds u32 path_cost; 2991da177e4SLinus Torvalds u32 designated_cost; 3000c03150eSstephen hemminger unsigned long designated_age; 3011da177e4SLinus Torvalds 3021da177e4SLinus Torvalds struct timer_list forward_delay_timer; 3031da177e4SLinus Torvalds struct timer_list hold_timer; 3041da177e4SLinus Torvalds struct timer_list message_age_timer; 3051da177e4SLinus Torvalds struct kobject kobj; 3061da177e4SLinus Torvalds struct rcu_head rcu; 3073982d3d2SFischer, Anna 308eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 30990010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 310cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 31190010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 312cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 313eb1d1641SHerbert Xu unsigned char multicast_router; 3141080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 315eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 316eb1d1641SHerbert Xu struct hlist_head mglist; 317eb1d1641SHerbert Xu struct hlist_node rlist; 318eb1d1641SHerbert Xu #endif 319e0f43752SSimon Arlott 320e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 321e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 322e0f43752SSimon Arlott #endif 32391d2c34aSHerbert Xu 32491d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 32591d2c34aSHerbert Xu struct netpoll *np; 32691d2c34aSHerbert Xu #endif 3276bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 3286bc506b4SIdo Schimmel int offload_fwd_mark; 3296bc506b4SIdo Schimmel #endif 3305af48b59SNikolay Aleksandrov u16 group_fwd_mask; 3312756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 332de179966SVivien Didelot 333de179966SVivien Didelot struct bridge_stp_xstats stp_xstats; 3341da177e4SLinus Torvalds }; 3351da177e4SLinus Torvalds 336705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 337705e0deaSTyler Hicks 338e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 339f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 340e028e4b8SVlad Yasevich 341b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 342b5ed54e9Sstephen hemminger { 343716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 344b5ed54e9Sstephen hemminger } 345b5ed54e9Sstephen hemminger 3461fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 347b5ed54e9Sstephen hemminger { 34835f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 349ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 350b5ed54e9Sstephen hemminger } 351b5ed54e9Sstephen hemminger 3520baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 3530baa10ffSArkadi Sharshevsky { 35435f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 3550baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3560baa10ffSArkadi Sharshevsky } 3570baa10ffSArkadi Sharshevsky 358ae75767eSNikolay Aleksandrov enum net_bridge_opts { 359ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 360ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 3618df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 3628df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 3638df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 364be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 36513cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 366675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 367675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 368675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 369675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 370c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 3713341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 3729163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 37370e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 3749c0ec2e7SMike Manning BROPT_VLAN_BRIDGE_BINDING, 375ae75767eSNikolay Aleksandrov }; 376ae75767eSNikolay Aleksandrov 3771f90c7f3SNikolay Aleksandrov struct net_bridge { 3781da177e4SLinus Torvalds spinlock_t lock; 3791f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 38090c628ddSHenrik Bjoernlund struct hlist_head frame_type_list; 3811da177e4SLinus Torvalds struct net_device *dev; 382ae75767eSNikolay Aleksandrov unsigned long options; 3831f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3841f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3851f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3861f90c7f3SNikolay Aleksandrov u16 default_pvid; 3871f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3881f90c7f3SNikolay Aleksandrov #endif 3891f90c7f3SNikolay Aleksandrov 390eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 39190c628ddSHenrik Bjoernlund struct list_head port_list; 39234666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 393efb6de9bSBernhard Thaler union { 3944adf0af6SSimon Wunderlich struct rtable fake_rtable; 395efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 396efb6de9bSBernhard Thaler }; 3974adf0af6SSimon Wunderlich #endif 398515853ccSstephen hemminger u16 group_fwd_mask; 399f2808d22SToshiaki Makita u16 group_fwd_mask_required; 400515853ccSstephen hemminger 4011da177e4SLinus Torvalds /* STP */ 4021da177e4SLinus Torvalds bridge_id designated_root; 4031da177e4SLinus Torvalds bridge_id bridge_id; 4041f90c7f3SNikolay Aleksandrov unsigned char topology_change; 4051f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 4061f90c7f3SNikolay Aleksandrov u16 root_port; 4071da177e4SLinus Torvalds unsigned long max_age; 4081da177e4SLinus Torvalds unsigned long hello_time; 4091da177e4SLinus Torvalds unsigned long forward_delay; 4101da177e4SLinus Torvalds unsigned long ageing_time; 41134d8acd8SVivien Didelot unsigned long bridge_max_age; 4121da177e4SLinus Torvalds unsigned long bridge_hello_time; 4131da177e4SLinus Torvalds unsigned long bridge_forward_delay; 41434d8acd8SVivien Didelot unsigned long bridge_ageing_time; 41535750b0bSNikolay Aleksandrov u32 root_path_cost; 4161da177e4SLinus Torvalds 417fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 4189cde0708SStephen Hemminger 4199cde0708SStephen Hemminger enum { 4209cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 4219cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 4229cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 4239cde0708SStephen Hemminger } stp_enabled; 4249cde0708SStephen Hemminger 425eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 426eb1d1641SHerbert Xu 427eb1d1641SHerbert Xu u32 hash_max; 428eb1d1641SHerbert Xu 429eb1d1641SHerbert Xu u32 multicast_last_member_count; 430eb1d1641SHerbert Xu u32 multicast_startup_query_count; 431eb1d1641SHerbert Xu 4325e923585SNikolay Aleksandrov u8 multicast_igmp_version; 433675779adSNikolay Aleksandrov u8 multicast_router; 434675779adSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 435675779adSNikolay Aleksandrov u8 multicast_mld_version; 436675779adSNikolay Aleksandrov #endif 43735750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 438eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 439eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 440eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 441eb1d1641SHerbert Xu unsigned long multicast_query_interval; 442eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 443eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 444eb1d1641SHerbert Xu 44519e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 446085b53c8SNikolay Aleksandrov struct rhashtable sg_port_tbl; 44719e3a9c9SNikolay Aleksandrov 448e12cec65SNikolay Aleksandrov struct hlist_head mcast_gc_list; 44919e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 450eb1d1641SHerbert Xu struct hlist_head router_list; 451eb1d1641SHerbert Xu 452eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 45390010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 45490010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 455dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 4561080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 457cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 45890010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 45990010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 460dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 461cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 462e12cec65SNikolay Aleksandrov struct work_struct mcast_gc_work; 463eb1d1641SHerbert Xu #endif 464eb1d1641SHerbert Xu 4651da177e4SLinus Torvalds struct timer_list hello_timer; 4661da177e4SLinus Torvalds struct timer_list tcn_timer; 4671da177e4SLinus Torvalds struct timer_list topology_change_timer; 468f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 46943b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 470e028e4b8SVlad Yasevich u32 auto_cnt; 4716bc506b4SIdo Schimmel 4726bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4736bc506b4SIdo Schimmel int offload_fwd_mark; 4746bc506b4SIdo Schimmel #endif 475eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4764b8d7d4cSHoratiu Vultur 4774b8d7d4cSHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 4780169b820SHoratiu Vultur struct hlist_head mrp_list; 4794b8d7d4cSHoratiu Vultur #endif 480f323aa54SHenrik Bjoernlund #if IS_ENABLED(CONFIG_BRIDGE_CFM) 481f323aa54SHenrik Bjoernlund struct hlist_head mep_list; 482f323aa54SHenrik Bjoernlund #endif 4831da177e4SLinus Torvalds }; 4841da177e4SLinus Torvalds 48568b7c895SHerbert Xu struct br_input_skb_cb { 48668b7c895SHerbert Xu struct net_device *brdev; 48793fdd47eSHerbert Xu 4883c171f49SPablo Neira Ayuso u16 frag_max_size; 48932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 490f12064d1SFlorian Westphal u8 igmp; 491f12064d1SFlorian Westphal u8 mrouters_only:1; 49232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 493f12064d1SFlorian Westphal u8 proxyarp_replied:1; 494f12064d1SFlorian Westphal u8 src_port_isolated:1; 49520adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 496f12064d1SFlorian Westphal u8 vlan_filtered:1; 49720adfa1aSVlad Yasevich #endif 498223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 499223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 500223fd0adSFlorian Westphal #endif 5016bc506b4SIdo Schimmel 5026bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 5036bc506b4SIdo Schimmel int offload_fwd_mark; 5046bc506b4SIdo Schimmel #endif 50568b7c895SHerbert Xu }; 50668b7c895SHerbert Xu 50768b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 50868b7c895SHerbert Xu 50932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 51032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 51132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 51232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 51332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 51432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 51528a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 51628a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 51728a16c97Sstephen hemminger 51828a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 51928a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 52028a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 52128a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 52228a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 52328a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 52428a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 52528a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 52628a16c97Sstephen hemminger 52728a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 52828a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 52928a16c97Sstephen hemminger 5301da177e4SLinus Torvalds /* called under bridge lock */ 5311da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 5321da177e4SLinus Torvalds { 5331da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 5341da177e4SLinus Torvalds } 5351da177e4SLinus Torvalds 5362594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 5372594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 5382594e906SNikolay Aleksandrov { 5392594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 5402594e906SNikolay Aleksandrov } 5412594e906SNikolay Aleksandrov 5422594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 5432594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 5442594e906SNikolay Aleksandrov { 5452594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 5462594e906SNikolay Aleksandrov } 5472594e906SNikolay Aleksandrov 5486be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 5492594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 5502594e906SNikolay Aleksandrov { 5512594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 5522594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 5532594e906SNikolay Aleksandrov return true; 5542594e906SNikolay Aleksandrov else 5552594e906SNikolay Aleksandrov return false; 5562594e906SNikolay Aleksandrov } 5572594e906SNikolay Aleksandrov 5582594e906SNikolay Aleksandrov return true; 5592594e906SNikolay Aleksandrov } 5602594e906SNikolay Aleksandrov 5615d1fcaf3SNikolay Aleksandrov static inline bool nbp_state_should_learn(const struct net_bridge_port *p) 5625d1fcaf3SNikolay Aleksandrov { 5635d1fcaf3SNikolay Aleksandrov return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; 5645d1fcaf3SNikolay Aleksandrov } 5655d1fcaf3SNikolay Aleksandrov 5668f4cc940SNikolay Aleksandrov static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack) 5675a46facbSNikolay Aleksandrov { 5688f4cc940SNikolay Aleksandrov bool ret = vid > 0 && vid < VLAN_VID_MASK; 5698f4cc940SNikolay Aleksandrov 5708f4cc940SNikolay Aleksandrov if (!ret) 5718f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid"); 5728f4cc940SNikolay Aleksandrov 5738f4cc940SNikolay Aleksandrov return ret; 5745a46facbSNikolay Aleksandrov } 5755a46facbSNikolay Aleksandrov 5765a46facbSNikolay Aleksandrov static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, 5778f4cc940SNikolay Aleksandrov const struct bridge_vlan_info *last, 5788f4cc940SNikolay Aleksandrov struct netlink_ext_ack *extack) 5795a46facbSNikolay Aleksandrov { 5805a46facbSNikolay Aleksandrov /* pvid flag is not allowed in ranges */ 5818f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_PVID) { 5828f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range"); 5835a46facbSNikolay Aleksandrov return false; 5848f4cc940SNikolay Aleksandrov } 5855a46facbSNikolay Aleksandrov 5865a46facbSNikolay Aleksandrov /* when cur is the range end, check if: 5875a46facbSNikolay Aleksandrov * - it has range start flag 5885a46facbSNikolay Aleksandrov * - range ids are invalid (end is equal to or before start) 5895a46facbSNikolay Aleksandrov */ 5905a46facbSNikolay Aleksandrov if (last) { 5918f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { 5928f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one"); 5935a46facbSNikolay Aleksandrov return false; 5948f4cc940SNikolay Aleksandrov } else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) { 5958f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing"); 5968f4cc940SNikolay Aleksandrov return false; 5978f4cc940SNikolay Aleksandrov } else if (cur->vid <= last->vid) { 5988f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); 5998f4cc940SNikolay Aleksandrov return false; 6008f4cc940SNikolay Aleksandrov } 6018f4cc940SNikolay Aleksandrov } 6028f4cc940SNikolay Aleksandrov 6038f4cc940SNikolay Aleksandrov /* check for required range flags */ 6048f4cc940SNikolay Aleksandrov if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 6058f4cc940SNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END))) { 6068f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing"); 6075a46facbSNikolay Aleksandrov return false; 6085a46facbSNikolay Aleksandrov } 6095a46facbSNikolay Aleksandrov 6105a46facbSNikolay Aleksandrov return true; 6115a46facbSNikolay Aleksandrov } 6125a46facbSNikolay Aleksandrov 613f545923bSNikolay Aleksandrov static inline int br_afspec_cmd_to_rtm(int cmd) 614f545923bSNikolay Aleksandrov { 615f545923bSNikolay Aleksandrov switch (cmd) { 616f545923bSNikolay Aleksandrov case RTM_SETLINK: 617f545923bSNikolay Aleksandrov return RTM_NEWVLAN; 618f545923bSNikolay Aleksandrov case RTM_DELLINK: 619f545923bSNikolay Aleksandrov return RTM_DELVLAN; 620f545923bSNikolay Aleksandrov } 621f545923bSNikolay Aleksandrov 622f545923bSNikolay Aleksandrov return 0; 623f545923bSNikolay Aleksandrov } 624f545923bSNikolay Aleksandrov 625ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 626ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 627ae75767eSNikolay Aleksandrov { 628ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 629ae75767eSNikolay Aleksandrov } 630ae75767eSNikolay Aleksandrov 631a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 632a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 633a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 634a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 635a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 636a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 637a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 638a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 639ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 640ae75767eSNikolay Aleksandrov 6411da177e4SLinus Torvalds /* br_device.c */ 642348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 643348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 644348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 645cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 64691d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 64791d2c34aSHerbert Xu struct sk_buff *skb) 64891d2c34aSHerbert Xu { 649f78ed220SEric Dumazet netpoll_send_skb(p->np, skb); 65091d2c34aSHerbert Xu } 65191d2c34aSHerbert Xu 652a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 653348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 65491d2c34aSHerbert Xu #else 6559f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 65691d2c34aSHerbert Xu struct sk_buff *skb) 65791d2c34aSHerbert Xu { 65891d2c34aSHerbert Xu } 65991d2c34aSHerbert Xu 660a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 66191d2c34aSHerbert Xu { 66291d2c34aSHerbert Xu return 0; 66391d2c34aSHerbert Xu } 66491d2c34aSHerbert Xu 66591d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 66691d2c34aSHerbert Xu { 66791d2c34aSHerbert Xu } 668cfb478daSstephen hemminger #endif 6691da177e4SLinus Torvalds 6701da177e4SLinus Torvalds /* br_fdb.c */ 671348662a1SJoe Perches int br_fdb_init(void); 672348662a1SJoe Perches void br_fdb_fini(void); 673eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 674eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 675348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 676424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 677424bb9c9SToshiaki Makita const struct net_bridge_port *p, 678424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 679348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 680348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 681f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 682348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 6831ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 684bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 685bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 686bfd0aeacSNikolay Aleksandrov __u16 vid); 687348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 688348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 689348662a1SJoe Perches unsigned long off); 690348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 691348662a1SJoe Perches const unsigned char *addr, u16 vid); 692348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 693be0c5677SNikolay Aleksandrov const unsigned char *addr, u16 vid, unsigned long flags); 69477162022SJohn Fastabend 695348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 696f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 697348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 69887b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 69987b0984eSPetr Machata struct netlink_ext_ack *extack); 700348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 701d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 70247674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 70347674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 70447674562SRoopa Prabhu struct netlink_ext_ack *extack); 7058db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 7068db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 7073aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 708161d82deSPetr Machata const unsigned char *addr, u16 vid, 709161d82deSPetr Machata bool swdev_notify); 7103aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 711161d82deSPetr Machata const unsigned char *addr, u16 vid, 712161d82deSPetr Machata bool swdev_notify); 7139fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 714e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 7151da177e4SLinus Torvalds 7161da177e4SLinus Torvalds /* br_forward.c */ 7178addd5e7SNikolay Aleksandrov enum br_pkt_type { 7188addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 7198addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 7208addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 7218addd5e7SNikolay Aleksandrov }; 7220c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 723b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 72437b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 7250c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 72637b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 7278addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 7281da177e4SLinus Torvalds 7297d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 7307d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 7317d850abdSNikolay Aleksandrov const struct sk_buff *skb) 7327d850abdSNikolay Aleksandrov { 7337d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 7347d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 7357d850abdSNikolay Aleksandrov } 7367d850abdSNikolay Aleksandrov 7371da177e4SLinus Torvalds /* br_if.c */ 738faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 739348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 740348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 741ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 742ca752be0SDavid Ahern struct netlink_ext_ack *extack); 743348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 744804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 745348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 746c8f44affSMichał Mirosław netdev_features_t features); 747e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 7482796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 7492756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 7501da177e4SLinus Torvalds 7511da177e4SLinus Torvalds /* br_input.c */ 7520c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 7539eb8eff0SVladimir Oltean rx_handler_func_t *br_get_rx_handler(const struct net_device *dev); 7541da177e4SLinus Torvalds 75590c628ddSHenrik Bjoernlund struct br_frame_type { 75690c628ddSHenrik Bjoernlund __be16 type; 75790c628ddSHenrik Bjoernlund int (*frame_handler)(struct net_bridge_port *port, 75890c628ddSHenrik Bjoernlund struct sk_buff *skb); 75990c628ddSHenrik Bjoernlund struct hlist_node list; 76090c628ddSHenrik Bjoernlund }; 76190c628ddSHenrik Bjoernlund 76290c628ddSHenrik Bjoernlund void br_add_frame(struct net_bridge *br, struct br_frame_type *ft); 76390c628ddSHenrik Bjoernlund void br_del_frame(struct net_bridge *br, struct br_frame_type *ft); 76490c628ddSHenrik Bjoernlund 765859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 766859828c0SJiri Pirko { 7679eb8eff0SVladimir Oltean return rcu_dereference(dev->rx_handler) == br_get_rx_handler(dev); 768859828c0SJiri Pirko } 769859828c0SJiri Pirko 7704d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 7714d4fd361SPetr Machata { 7729eb8eff0SVladimir Oltean return rcu_dereference_rtnl(dev->rx_handler) == br_get_rx_handler(dev); 7734d4fd361SPetr Machata } 7744d4fd361SPetr Machata 775859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 776859828c0SJiri Pirko { 777859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 778859828c0SJiri Pirko } 779859828c0SJiri Pirko 7804d4fd361SPetr Machata static inline struct net_bridge_port * 7814d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 7824d4fd361SPetr Machata { 7834d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 7844d4fd361SPetr Machata } 7854d4fd361SPetr Machata 7861da177e4SLinus Torvalds /* br_ioctl.c */ 787348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 788348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 789348662a1SJoe Perches void __user *arg); 7901da177e4SLinus Torvalds 791eb1d1641SHerbert Xu /* br_multicast.c */ 792eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 793348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 794fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 795348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 796eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 7971080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 798348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 799348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 800348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 801348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 802851d0a73SJoseph Huang void br_multicast_join_snoopers(struct net_bridge *br); 803851d0a73SJoseph Huang void br_multicast_leave_snoopers(struct net_bridge *br); 804348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 805348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 806e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 80737b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 80837b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 809348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 810348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 811348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 812348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 813348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 8145e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 815aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 816aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 817aa2ae3e7SNikolay Aleksandrov #endif 818348662a1SJoe Perches struct net_bridge_mdb_entry * 81919e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 820348662a1SJoe Perches struct net_bridge_mdb_entry * 82119e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 822348662a1SJoe Perches struct net_bridge_port_group * 823348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 824762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 8258b671779SNikolay Aleksandrov unsigned char flags, const unsigned char *src, 8268f8cb77eSNikolay Aleksandrov u8 filter_mode, u8 rt_protocol); 82719e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 82819e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 82981f19838SNikolay Aleksandrov void br_mdb_notify(struct net_device *dev, struct net_bridge_mdb_entry *mp, 83081f19838SNikolay Aleksandrov struct net_bridge_port_group *pg, int type); 831949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 832949f1e39SSatish Ashok int type); 833681590bdSNikolay Aleksandrov void br_multicast_del_pg(struct net_bridge_mdb_entry *mp, 834681590bdSNikolay Aleksandrov struct net_bridge_port_group *pg, 835681590bdSNikolay Aleksandrov struct net_bridge_port_group __rcu **pp); 8361080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 837a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 8381080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 839b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 8401080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 8411080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 8421080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 84319e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 84419e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 8451bc844eeSNikolay Aleksandrov void br_multicast_host_join(struct net_bridge_mdb_entry *mp, bool notify); 8461bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 8478266a049SNikolay Aleksandrov void br_multicast_star_g_handle_mode(struct net_bridge_port_group *pg, 8488266a049SNikolay Aleksandrov u8 filter_mode); 8498266a049SNikolay Aleksandrov void br_multicast_sg_add_exclude_ports(struct net_bridge_mdb_entry *star_mp, 8508266a049SNikolay Aleksandrov struct net_bridge_port_group *sg); 85185b35269SSridhar Samudrala 852955062b0SNikolay Aleksandrov static inline bool br_group_is_l2(const struct br_ip *group) 853955062b0SNikolay Aleksandrov { 854955062b0SNikolay Aleksandrov return group->proto == 0; 855955062b0SNikolay Aleksandrov } 856955062b0SNikolay Aleksandrov 857cfd56754SCong Wang #define mlock_dereference(X, br) \ 858cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 859cfd56754SCong Wang 86085b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 86185b35269SSridhar Samudrala { 86285b35269SSridhar Samudrala return br->multicast_router == 2 || 86385b35269SSridhar Samudrala (br->multicast_router == 1 && 86485b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 86585b35269SSridhar Samudrala } 866b00589afSLinus Lüssing 867cc0fdd80SLinus Lüssing static inline bool 868cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 8690888d5f3Sdaniel struct bridge_mcast_other_query *querier, 8700888d5f3Sdaniel const bool is_ipv6) 871b00589afSLinus Lüssing { 8720888d5f3Sdaniel bool own_querier_enabled; 8730888d5f3Sdaniel 874675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 875675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 8760888d5f3Sdaniel own_querier_enabled = false; 8770888d5f3Sdaniel else 8780888d5f3Sdaniel own_querier_enabled = true; 8790888d5f3Sdaniel } else { 8800888d5f3Sdaniel own_querier_enabled = false; 8810888d5f3Sdaniel } 8820888d5f3Sdaniel 883cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 8840888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 885cc0fdd80SLinus Lüssing } 886cc0fdd80SLinus Lüssing 887cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 888955062b0SNikolay Aleksandrov struct ethhdr *eth, 889955062b0SNikolay Aleksandrov const struct net_bridge_mdb_entry *mdb) 890cc0fdd80SLinus Lüssing { 891cc0fdd80SLinus Lüssing switch (eth->h_proto) { 892cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 8930888d5f3Sdaniel return __br_multicast_querier_exists(br, 8940888d5f3Sdaniel &br->ip4_other_query, false); 895cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 896cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 8970888d5f3Sdaniel return __br_multicast_querier_exists(br, 8980888d5f3Sdaniel &br->ip6_other_query, true); 899cc0fdd80SLinus Lüssing #endif 900cc0fdd80SLinus Lüssing default: 901955062b0SNikolay Aleksandrov return !!mdb && br_group_is_l2(&mdb->addr); 902cc0fdd80SLinus Lüssing } 903b00589afSLinus Lüssing } 9041080ab95SNikolay Aleksandrov 90588d4bd18SNikolay Aleksandrov static inline bool br_multicast_is_star_g(const struct br_ip *ip) 90688d4bd18SNikolay Aleksandrov { 90788d4bd18SNikolay Aleksandrov switch (ip->proto) { 90888d4bd18SNikolay Aleksandrov case htons(ETH_P_IP): 90988d4bd18SNikolay Aleksandrov return ipv4_is_zeronet(ip->src.ip4); 91088d4bd18SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 91188d4bd18SNikolay Aleksandrov case htons(ETH_P_IPV6): 91288d4bd18SNikolay Aleksandrov return ipv6_addr_any(&ip->src.ip6); 91388d4bd18SNikolay Aleksandrov #endif 91488d4bd18SNikolay Aleksandrov default: 91588d4bd18SNikolay Aleksandrov return false; 91688d4bd18SNikolay Aleksandrov } 91788d4bd18SNikolay Aleksandrov } 91888d4bd18SNikolay Aleksandrov 9198266a049SNikolay Aleksandrov static inline bool br_multicast_should_handle_mode(const struct net_bridge *br, 9208266a049SNikolay Aleksandrov __be16 proto) 9218266a049SNikolay Aleksandrov { 9228266a049SNikolay Aleksandrov switch (proto) { 9238266a049SNikolay Aleksandrov case htons(ETH_P_IP): 9248266a049SNikolay Aleksandrov return !!(br->multicast_igmp_version == 3); 9258266a049SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 9268266a049SNikolay Aleksandrov case htons(ETH_P_IPV6): 9278266a049SNikolay Aleksandrov return !!(br->multicast_mld_version == 2); 9288266a049SNikolay Aleksandrov #endif 9298266a049SNikolay Aleksandrov default: 9308266a049SNikolay Aleksandrov return false; 9318266a049SNikolay Aleksandrov } 9328266a049SNikolay Aleksandrov } 9338266a049SNikolay Aleksandrov 9341080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 9351080ab95SNikolay Aleksandrov { 9361080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 9371080ab95SNikolay Aleksandrov } 93842c11ccfSNikolay Aleksandrov 93942c11ccfSNikolay Aleksandrov static inline unsigned long br_multicast_lmqt(const struct net_bridge *br) 94042c11ccfSNikolay Aleksandrov { 94142c11ccfSNikolay Aleksandrov return br->multicast_last_member_interval * 94242c11ccfSNikolay Aleksandrov br->multicast_last_member_count; 94342c11ccfSNikolay Aleksandrov } 9440436862eSNikolay Aleksandrov 9450436862eSNikolay Aleksandrov static inline unsigned long br_multicast_gmi(const struct net_bridge *br) 9460436862eSNikolay Aleksandrov { 9470436862eSNikolay Aleksandrov /* use the RFC default of 2 for QRV */ 9480436862eSNikolay Aleksandrov return 2 * br->multicast_query_interval + 9490436862eSNikolay Aleksandrov br->multicast_query_response_interval; 9500436862eSNikolay Aleksandrov } 951eb1d1641SHerbert Xu #else 952eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 953eb1d1641SHerbert Xu struct net_bridge_port *port, 95406499098SVlad Yasevich struct sk_buff *skb, 95506499098SVlad Yasevich u16 vid) 956eb1d1641SHerbert Xu { 957eb1d1641SHerbert Xu return 0; 958eb1d1641SHerbert Xu } 959eb1d1641SHerbert Xu 960eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 961fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 962eb1d1641SHerbert Xu { 963eb1d1641SHerbert Xu return NULL; 964eb1d1641SHerbert Xu } 965eb1d1641SHerbert Xu 9661080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 967eb1d1641SHerbert Xu { 9681080ab95SNikolay Aleksandrov return 0; 969eb1d1641SHerbert Xu } 970eb1d1641SHerbert Xu 971eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 972eb1d1641SHerbert Xu { 973eb1d1641SHerbert Xu } 974eb1d1641SHerbert Xu 975eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 976eb1d1641SHerbert Xu { 977eb1d1641SHerbert Xu } 978eb1d1641SHerbert Xu 979eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 980eb1d1641SHerbert Xu { 981eb1d1641SHerbert Xu } 982eb1d1641SHerbert Xu 983eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 984eb1d1641SHerbert Xu { 985eb1d1641SHerbert Xu } 986eb1d1641SHerbert Xu 987851d0a73SJoseph Huang static inline void br_multicast_join_snoopers(struct net_bridge *br) 988851d0a73SJoseph Huang { 989851d0a73SJoseph Huang } 990851d0a73SJoseph Huang 991851d0a73SJoseph Huang static inline void br_multicast_leave_snoopers(struct net_bridge *br) 992851d0a73SJoseph Huang { 993851d0a73SJoseph Huang } 994851d0a73SJoseph Huang 995eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 996eb1d1641SHerbert Xu { 997eb1d1641SHerbert Xu } 998eb1d1641SHerbert Xu 999eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 1000eb1d1641SHerbert Xu { 1001eb1d1641SHerbert Xu } 10025cb5e947SHerbert Xu 1003a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 1004a7ce45a7SNikolay Aleksandrov { 1005a7ce45a7SNikolay Aleksandrov } 1006a7ce45a7SNikolay Aleksandrov 100737b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 100837b090e6SNikolay Aleksandrov struct sk_buff *skb, 100937b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 10105cb5e947SHerbert Xu { 10115cb5e947SHerbert Xu } 10125cb5e947SHerbert Xu 1013eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 1014eb1d1641SHerbert Xu { 101503aaa9e2SGustavo A. R. Silva return false; 1016eb1d1641SHerbert Xu } 101737b090e6SNikolay Aleksandrov 1018cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 1019c43fd36fSVladimir Oltean struct ethhdr *eth, 1020c43fd36fSVladimir Oltean const struct net_bridge_mdb_entry *mdb) 1021b00589afSLinus Lüssing { 1022b00589afSLinus Lüssing return false; 1023b00589afSLinus Lüssing } 102437b090e6SNikolay Aleksandrov 1025fdb184d1SRami Rosen static inline void br_mdb_init(void) 1026fdb184d1SRami Rosen { 1027fdb184d1SRami Rosen } 102837b090e6SNikolay Aleksandrov 1029fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 1030fdb184d1SRami Rosen { 1031fdb184d1SRami Rosen } 10321080ab95SNikolay Aleksandrov 103319e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 103419e3a9c9SNikolay Aleksandrov { 103519e3a9c9SNikolay Aleksandrov return 0; 103619e3a9c9SNikolay Aleksandrov } 103719e3a9c9SNikolay Aleksandrov 103819e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 103919e3a9c9SNikolay Aleksandrov { 104019e3a9c9SNikolay Aleksandrov } 104119e3a9c9SNikolay Aleksandrov 10421080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 10431080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 1044a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 1045a65056ecSNikolay Aleksandrov u8 type, u8 dir) 10461080ab95SNikolay Aleksandrov { 10471080ab95SNikolay Aleksandrov } 10481080ab95SNikolay Aleksandrov 10491080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 10501080ab95SNikolay Aleksandrov { 10511080ab95SNikolay Aleksandrov return 0; 10521080ab95SNikolay Aleksandrov } 10531080ab95SNikolay Aleksandrov 1054b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 1055b6fe0440SIdo Schimmel { 1056b6fe0440SIdo Schimmel } 1057b6fe0440SIdo Schimmel 10581080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 10591080ab95SNikolay Aleksandrov { 10601080ab95SNikolay Aleksandrov return 0; 10611080ab95SNikolay Aleksandrov } 106285b35269SSridhar Samudrala #endif 1063eb1d1641SHerbert Xu 1064243a2e63SVlad Yasevich /* br_vlan.c */ 1065243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 106677751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 106777751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 1068a580c76dSNikolay Aleksandrov u16 *vid, u8 *state); 106977751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 107085f46c6bSVlad Yasevich const struct sk_buff *skb); 1071e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 1072348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 107311538d03SRoopa Prabhu const struct net_bridge_port *port, 10742594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 107578851988SVlad Yasevich struct sk_buff *skb); 1076f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1077169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1078348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 1079348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 10802594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 1081204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 1082a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 1083348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 1084d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 1085204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 10866dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 10879163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 10885be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 108996a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 1090169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 1091169327d5SPetr Machata struct netlink_ext_ack *extack); 1092f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1093169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1094348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 1095348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 1096169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 10972594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 1098a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 1099281cc284SHeiner Kallweit struct pcpu_sw_netstats *stats); 11009c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 1101091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 11029c0ec2e7SMike Manning void *ptr); 11038dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void); 11048dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void); 1105cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 1106cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1107cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1108cf5bddb9SNikolay Aleksandrov int cmd); 1109a5d29ae2SNikolay Aleksandrov bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1110a5d29ae2SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 1111a37b85c9SVlad Yasevich 11122594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 1113a37b85c9SVlad Yasevich const struct net_bridge *br) 1114a37b85c9SVlad Yasevich { 1115907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 1116a37b85c9SVlad Yasevich } 1117a37b85c9SVlad Yasevich 11182594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 1119a37b85c9SVlad Yasevich const struct net_bridge_port *p) 1120a37b85c9SVlad Yasevich { 1121907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 1122907b1e6eSNikolay Aleksandrov } 1123907b1e6eSNikolay Aleksandrov 1124907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1125907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1126907b1e6eSNikolay Aleksandrov { 1127907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 1128907b1e6eSNikolay Aleksandrov } 1129907b1e6eSNikolay Aleksandrov 1130907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1131907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1132907b1e6eSNikolay Aleksandrov { 1133907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 1134a37b85c9SVlad Yasevich } 1135a37b85c9SVlad Yasevich 1136a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 1137a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 1138a37b85c9SVlad Yasevich */ 1139a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 1140a37b85c9SVlad Yasevich { 1141a37b85c9SVlad Yasevich int err = 0; 1142a37b85c9SVlad Yasevich 11432594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 11445978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 11452594e906SNikolay Aleksandrov } else { 1146a37b85c9SVlad Yasevich *vid = 0; 1147a37b85c9SVlad Yasevich err = -EINVAL; 1148a37b85c9SVlad Yasevich } 1149a37b85c9SVlad Yasevich 1150a37b85c9SVlad Yasevich return err; 1151a37b85c9SVlad Yasevich } 115278851988SVlad Yasevich 115377751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 115478851988SVlad Yasevich { 115577751ee8SNikolay Aleksandrov if (!vg) 11565be5a2dfSVlad Yasevich return 0; 11575be5a2dfSVlad Yasevich 115878851988SVlad Yasevich smp_rmb(); 115977751ee8SNikolay Aleksandrov return vg->pvid; 116078851988SVlad Yasevich } 116178851988SVlad Yasevich 11628dcea187SNikolay Aleksandrov static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) 11638dcea187SNikolay Aleksandrov { 11648dcea187SNikolay Aleksandrov return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags; 11658dcea187SNikolay Aleksandrov } 1166243a2e63SVlad Yasevich #else 116777751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 116877751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 11692594e906SNikolay Aleksandrov struct sk_buff *skb, 1170a580c76dSNikolay Aleksandrov u16 *vid, u8 *state) 11712594e906SNikolay Aleksandrov { 11722594e906SNikolay Aleksandrov return true; 11732594e906SNikolay Aleksandrov } 11742594e906SNikolay Aleksandrov 11752594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 117685f46c6bSVlad Yasevich const struct sk_buff *skb) 117785f46c6bSVlad Yasevich { 117885f46c6bSVlad Yasevich return true; 117985f46c6bSVlad Yasevich } 118085f46c6bSVlad Yasevich 1181e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 1182e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 1183e0d7968aSToshiaki Makita { 1184e0d7968aSToshiaki Makita return true; 1185e0d7968aSToshiaki Makita } 1186e0d7968aSToshiaki Makita 118778851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 118811538d03SRoopa Prabhu const struct net_bridge_port *port, 11892594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 119078851988SVlad Yasevich struct sk_buff *skb) 119178851988SVlad Yasevich { 119278851988SVlad Yasevich return skb; 119378851988SVlad Yasevich } 119478851988SVlad Yasevich 1195f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, 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 br_vlan_delete(struct net_bridge *br, u16 vid) 1203243a2e63SVlad Yasevich { 1204243a2e63SVlad Yasevich return -EOPNOTSUPP; 1205243a2e63SVlad Yasevich } 1206243a2e63SVlad Yasevich 1207243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1208243a2e63SVlad Yasevich { 1209243a2e63SVlad Yasevich } 1210243a2e63SVlad Yasevich 1211204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1212204177f3SToshiaki Makita { 1213204177f3SToshiaki Makita } 1214204177f3SToshiaki Makita 12155be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 12168580e211SToshiaki Makita { 12175be5a2dfSVlad Yasevich return 0; 12188580e211SToshiaki Makita } 12198580e211SToshiaki Makita 1220f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1221169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1222243a2e63SVlad Yasevich { 1223f418af63SNikolay Aleksandrov *changed = false; 1224243a2e63SVlad Yasevich return -EOPNOTSUPP; 1225243a2e63SVlad Yasevich } 1226243a2e63SVlad Yasevich 1227243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1228243a2e63SVlad Yasevich { 1229243a2e63SVlad Yasevich return -EOPNOTSUPP; 1230243a2e63SVlad Yasevich } 1231243a2e63SVlad Yasevich 1232243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1233243a2e63SVlad Yasevich { 1234243a2e63SVlad Yasevich } 1235243a2e63SVlad Yasevich 12362594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 12372594e906SNikolay Aleksandrov u16 vid) 1238a37b85c9SVlad Yasevich { 1239a37b85c9SVlad Yasevich return NULL; 1240a37b85c9SVlad Yasevich } 1241bc9a25d2SVlad Yasevich 1242169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1243169327d5SPetr Machata struct netlink_ext_ack *extack) 12445be5a2dfSVlad Yasevich { 12455be5a2dfSVlad Yasevich return 0; 12465be5a2dfSVlad Yasevich } 12475be5a2dfSVlad Yasevich 124878851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1249a37b85c9SVlad Yasevich { 1250a37b85c9SVlad Yasevich return 0; 1251a37b85c9SVlad Yasevich } 12522594e906SNikolay Aleksandrov 125377751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 125478851988SVlad Yasevich { 12553df6bf45SVlad Yasevich return 0; 125678851988SVlad Yasevich } 12572796d0c6SVlad Yasevich 1258a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1259a7854037SNikolay Aleksandrov unsigned long val) 1260a7854037SNikolay Aleksandrov { 1261a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1262a7854037SNikolay Aleksandrov } 12632594e906SNikolay Aleksandrov 12642594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 12652594e906SNikolay Aleksandrov u32 filter_mask) 12662594e906SNikolay Aleksandrov { 12672594e906SNikolay Aleksandrov return 0; 12682594e906SNikolay Aleksandrov } 12692594e906SNikolay Aleksandrov 12702594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 12712594e906SNikolay Aleksandrov const struct net_bridge *br) 12722594e906SNikolay Aleksandrov { 12732594e906SNikolay Aleksandrov return NULL; 12742594e906SNikolay Aleksandrov } 12752594e906SNikolay Aleksandrov 12762594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 12772594e906SNikolay Aleksandrov const struct net_bridge_port *p) 12782594e906SNikolay Aleksandrov { 12792594e906SNikolay Aleksandrov return NULL; 12802594e906SNikolay Aleksandrov } 1281907b1e6eSNikolay Aleksandrov 1282907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1283907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1284907b1e6eSNikolay Aleksandrov { 1285907b1e6eSNikolay Aleksandrov return NULL; 1286907b1e6eSNikolay Aleksandrov } 1287907b1e6eSNikolay Aleksandrov 1288907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1289907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1290907b1e6eSNikolay Aleksandrov { 1291907b1e6eSNikolay Aleksandrov return NULL; 1292907b1e6eSNikolay Aleksandrov } 1293a60c0903SNikolay Aleksandrov 1294a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1295281cc284SHeiner Kallweit struct pcpu_sw_netstats *stats) 1296a60c0903SNikolay Aleksandrov { 1297a60c0903SNikolay Aleksandrov } 12989c0ec2e7SMike Manning 12999c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 13009c0ec2e7SMike Manning unsigned long event) 13019c0ec2e7SMike Manning { 13029c0ec2e7SMike Manning } 13039c0ec2e7SMike Manning 1304091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 13059c0ec2e7SMike Manning unsigned long event, void *ptr) 13069c0ec2e7SMike Manning { 1307091adf9bSNikolay Aleksandrov return 0; 13089c0ec2e7SMike Manning } 13098dcea187SNikolay Aleksandrov 13108dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_init(void) 13118dcea187SNikolay Aleksandrov { 13128dcea187SNikolay Aleksandrov } 13138dcea187SNikolay Aleksandrov 13148dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_uninit(void) 13158dcea187SNikolay Aleksandrov { 13168dcea187SNikolay Aleksandrov } 1317cf5bddb9SNikolay Aleksandrov 1318cf5bddb9SNikolay Aleksandrov static inline void br_vlan_notify(const struct net_bridge *br, 1319cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1320cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1321cf5bddb9SNikolay Aleksandrov int cmd) 1322cf5bddb9SNikolay Aleksandrov { 1323cf5bddb9SNikolay Aleksandrov } 1324528ae84aSNikolay Aleksandrov 1325528ae84aSNikolay Aleksandrov static inline bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1326528ae84aSNikolay Aleksandrov const struct net_bridge_vlan *range_end) 1327528ae84aSNikolay Aleksandrov { 1328528ae84aSNikolay Aleksandrov return true; 1329528ae84aSNikolay Aleksandrov } 1330243a2e63SVlad Yasevich #endif 1331243a2e63SVlad Yasevich 13327a53e718SNikolay Aleksandrov /* br_vlan_options.c */ 13337a53e718SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 133499f7c5e0SNikolay Aleksandrov bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, 133599f7c5e0SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 13367a53e718SNikolay Aleksandrov bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v); 13377a53e718SNikolay Aleksandrov size_t br_vlan_opts_nl_size(void); 1338a5d29ae2SNikolay Aleksandrov int br_vlan_process_options(const struct net_bridge *br, 1339a5d29ae2SNikolay Aleksandrov const struct net_bridge_port *p, 1340a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_start, 1341a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_end, 1342a5d29ae2SNikolay Aleksandrov struct nlattr **tb, 1343a5d29ae2SNikolay Aleksandrov struct netlink_ext_ack *extack); 1344a580c76dSNikolay Aleksandrov 1345a580c76dSNikolay Aleksandrov /* vlan state manipulation helpers using *_ONCE to annotate lock-free access */ 1346a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v) 1347a580c76dSNikolay Aleksandrov { 1348a580c76dSNikolay Aleksandrov return READ_ONCE(v->state); 1349a580c76dSNikolay Aleksandrov } 1350a580c76dSNikolay Aleksandrov 1351a580c76dSNikolay Aleksandrov static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state) 1352a580c76dSNikolay Aleksandrov { 1353a580c76dSNikolay Aleksandrov WRITE_ONCE(v->state, state); 1354a580c76dSNikolay Aleksandrov } 1355a580c76dSNikolay Aleksandrov 1356a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg) 1357a580c76dSNikolay Aleksandrov { 1358a580c76dSNikolay Aleksandrov return READ_ONCE(vg->pvid_state); 1359a580c76dSNikolay Aleksandrov } 1360a580c76dSNikolay Aleksandrov 1361a580c76dSNikolay Aleksandrov static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg, 1362a580c76dSNikolay Aleksandrov u8 state) 1363a580c76dSNikolay Aleksandrov { 1364a580c76dSNikolay Aleksandrov WRITE_ONCE(vg->pvid_state, state); 1365a580c76dSNikolay Aleksandrov } 1366a580c76dSNikolay Aleksandrov 1367a580c76dSNikolay Aleksandrov /* learn_allow is true at ingress and false at egress */ 1368a580c76dSNikolay Aleksandrov static inline bool br_vlan_state_allowed(u8 state, bool learn_allow) 1369a580c76dSNikolay Aleksandrov { 1370a580c76dSNikolay Aleksandrov switch (state) { 1371a580c76dSNikolay Aleksandrov case BR_STATE_LEARNING: 1372a580c76dSNikolay Aleksandrov return learn_allow; 1373a580c76dSNikolay Aleksandrov case BR_STATE_FORWARDING: 1374a580c76dSNikolay Aleksandrov return true; 1375a580c76dSNikolay Aleksandrov default: 1376a580c76dSNikolay Aleksandrov return false; 1377a580c76dSNikolay Aleksandrov } 1378a580c76dSNikolay Aleksandrov } 13797a53e718SNikolay Aleksandrov #endif 13807a53e718SNikolay Aleksandrov 13811a4ba64dSPablo Neira Ayuso struct nf_br_ops { 13821a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 13831a4ba64dSPablo Neira Ayuso }; 13841a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 13851a4ba64dSPablo Neira Ayuso 13861da177e4SLinus Torvalds /* br_netfilter.c */ 138734666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 138834666d46SPablo Neira Ayuso int br_nf_core_init(void); 138934666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1390348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1391c0909713SStephen Hemminger #else 139234666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 139334666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 13944adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1395c0909713SStephen Hemminger #endif 13961da177e4SLinus Torvalds 13971da177e4SLinus Torvalds /* br_stp.c */ 1398775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1399348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1400348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1401348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 14021da177e4SLinus Torvalds 1403348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1404348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1405348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1406348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 140782dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 14089e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 140914f98f25Sstephen hemminger 141014f98f25Sstephen hemminger 14111da177e4SLinus Torvalds /* br_stp_if.c */ 1412348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1413348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1414419dba8aSHoratiu Vultur int br_stp_set_enabled(struct net_bridge *br, unsigned long val, 1415419dba8aSHoratiu Vultur struct netlink_ext_ack *extack); 1416348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1417348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1418348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1419348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1420348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1421348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1422348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1423348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 14241da177e4SLinus Torvalds 14251da177e4SLinus Torvalds /* br_stp_bpdu.c */ 14267c85fbf0SPatrick McHardy struct stp_proto; 1427348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 14287c85fbf0SPatrick McHardy struct net_device *dev); 14291da177e4SLinus Torvalds 14301da177e4SLinus Torvalds /* br_stp_timer.c */ 1431348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1432348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1433348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 14341da177e4SLinus Torvalds 14351da177e4SLinus Torvalds /* br.c */ 1436e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1437da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1438da678292SMichał Mirosław #endif 14391da177e4SLinus Torvalds 144065369933SHoratiu Vultur /* br_mrp.c */ 144165369933SHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 144265369933SHoratiu Vultur int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 144365369933SHoratiu Vultur struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 144465369933SHoratiu Vultur bool br_mrp_enabled(struct net_bridge *br); 144565369933SHoratiu Vultur void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p); 1446df42ef22SHoratiu Vultur int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br); 144765369933SHoratiu Vultur #else 144865369933SHoratiu Vultur static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 144965369933SHoratiu Vultur struct nlattr *attr, int cmd, 145065369933SHoratiu Vultur struct netlink_ext_ack *extack) 145165369933SHoratiu Vultur { 145265369933SHoratiu Vultur return -EOPNOTSUPP; 145365369933SHoratiu Vultur } 145465369933SHoratiu Vultur 145565369933SHoratiu Vultur static inline bool br_mrp_enabled(struct net_bridge *br) 145665369933SHoratiu Vultur { 14578741e184SJason Yan return false; 145865369933SHoratiu Vultur } 145965369933SHoratiu Vultur 146065369933SHoratiu Vultur static inline void br_mrp_port_del(struct net_bridge *br, 146165369933SHoratiu Vultur struct net_bridge_port *p) 146265369933SHoratiu Vultur { 146365369933SHoratiu Vultur } 1464df42ef22SHoratiu Vultur 1465df42ef22SHoratiu Vultur static inline int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br) 1466df42ef22SHoratiu Vultur { 1467df42ef22SHoratiu Vultur return 0; 1468df42ef22SHoratiu Vultur } 1469df42ef22SHoratiu Vultur 147065369933SHoratiu Vultur #endif 147165369933SHoratiu Vultur 14722be665c3SHenrik Bjoernlund /* br_cfm.c */ 147386a14b79SHenrik Bjoernlund #if IS_ENABLED(CONFIG_BRIDGE_CFM) 14742be665c3SHenrik Bjoernlund int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p, 14752be665c3SHenrik Bjoernlund struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 14762be665c3SHenrik Bjoernlund bool br_cfm_created(struct net_bridge *br); 147786a14b79SHenrik Bjoernlund void br_cfm_port_del(struct net_bridge *br, struct net_bridge_port *p); 14785e312fc0SHenrik Bjoernlund int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br); 1479b6d0425bSHenrik Bjoernlund int br_cfm_status_fill_info(struct sk_buff *skb, 1480b6d0425bSHenrik Bjoernlund struct net_bridge *br, 1481b6d0425bSHenrik Bjoernlund bool getlink); 1482b6d0425bSHenrik Bjoernlund int br_cfm_mep_count(struct net_bridge *br, u32 *count); 1483b6d0425bSHenrik Bjoernlund int br_cfm_peer_mep_count(struct net_bridge *br, u32 *count); 148486a14b79SHenrik Bjoernlund #else 14852be665c3SHenrik Bjoernlund static inline int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p, 14862be665c3SHenrik Bjoernlund struct nlattr *attr, int cmd, 14872be665c3SHenrik Bjoernlund struct netlink_ext_ack *extack) 14882be665c3SHenrik Bjoernlund { 14892be665c3SHenrik Bjoernlund return -EOPNOTSUPP; 14902be665c3SHenrik Bjoernlund } 14912be665c3SHenrik Bjoernlund 14922be665c3SHenrik Bjoernlund static inline bool br_cfm_created(struct net_bridge *br) 14932be665c3SHenrik Bjoernlund { 14942be665c3SHenrik Bjoernlund return false; 14952be665c3SHenrik Bjoernlund } 14962be665c3SHenrik Bjoernlund 149786a14b79SHenrik Bjoernlund static inline void br_cfm_port_del(struct net_bridge *br, 149886a14b79SHenrik Bjoernlund struct net_bridge_port *p) 149986a14b79SHenrik Bjoernlund { 150086a14b79SHenrik Bjoernlund } 15015e312fc0SHenrik Bjoernlund 15025e312fc0SHenrik Bjoernlund static inline int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br) 15035e312fc0SHenrik Bjoernlund { 15045e312fc0SHenrik Bjoernlund return -EOPNOTSUPP; 15055e312fc0SHenrik Bjoernlund } 1506e77824d8SHenrik Bjoernlund 1507b6d0425bSHenrik Bjoernlund static inline int br_cfm_status_fill_info(struct sk_buff *skb, 1508b6d0425bSHenrik Bjoernlund struct net_bridge *br, 1509b6d0425bSHenrik Bjoernlund bool getlink) 1510b6d0425bSHenrik Bjoernlund { 1511b6d0425bSHenrik Bjoernlund return -EOPNOTSUPP; 1512b6d0425bSHenrik Bjoernlund } 1513b6d0425bSHenrik Bjoernlund 1514b6d0425bSHenrik Bjoernlund static inline int br_cfm_mep_count(struct net_bridge *br, u32 *count) 1515b6d0425bSHenrik Bjoernlund { 1516b6d0425bSHenrik Bjoernlund return -EOPNOTSUPP; 1517b6d0425bSHenrik Bjoernlund } 1518b6d0425bSHenrik Bjoernlund 1519b6d0425bSHenrik Bjoernlund static inline int br_cfm_peer_mep_count(struct net_bridge *br, u32 *count) 1520e77824d8SHenrik Bjoernlund { 1521e77824d8SHenrik Bjoernlund return -EOPNOTSUPP; 1522e77824d8SHenrik Bjoernlund } 152386a14b79SHenrik Bjoernlund #endif 152486a14b79SHenrik Bjoernlund 152511dc1f36SStephen Hemminger /* br_netlink.c */ 1526149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1527348662a1SJoe Perches int br_netlink_init(void); 1528348662a1SJoe Perches void br_netlink_fini(void); 152992899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 153092899063SNikolay Aleksandrov const struct net_bridge_port *port); 1531b6d0425bSHenrik Bjoernlund void br_info_notify(int event, const struct net_bridge *br, 1532b6d0425bSHenrik Bjoernlund const struct net_bridge_port *port, u32 filter); 15332fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 15342fd527b7SPetr Machata struct netlink_ext_ack *extack); 1535add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1536348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 153746c264daSNicolas Dichtel u32 filter_mask, int nlflags); 1538f26b2965SNikolay Aleksandrov int br_process_vlan_info(struct net_bridge *br, 1539f26b2965SNikolay Aleksandrov struct net_bridge_port *p, int cmd, 1540f26b2965SNikolay Aleksandrov struct bridge_vlan_info *vinfo_curr, 1541f26b2965SNikolay Aleksandrov struct bridge_vlan_info **vinfo_last, 1542f26b2965SNikolay Aleksandrov bool *changed, 1543f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack); 154411dc1f36SStephen Hemminger 15451da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 15461da177e4SLinus Torvalds /* br_sysfs_if.c */ 154752cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1548348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1549348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 15501da177e4SLinus Torvalds 15511da177e4SLinus Torvalds /* br_sysfs_br.c */ 1552348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1553348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 15541da177e4SLinus Torvalds 15551da177e4SLinus Torvalds #else 15561da177e4SLinus Torvalds 15570cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 15580cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 15590cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 15600cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 15611da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 15621da177e4SLinus Torvalds 15636bc506b4SIdo Schimmel /* br_switchdev.c */ 15646bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 15656bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 15666bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 15676bc506b4SIdo Schimmel struct sk_buff *skb); 15686bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 15696bc506b4SIdo Schimmel const struct sk_buff *skb); 15703922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 15713922285dSArkadi Sharshevsky unsigned long flags, 15723922285dSArkadi Sharshevsky unsigned long mask); 15736b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 15746b26b51bSArkadi Sharshevsky int type); 1575169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1576169327d5SPetr Machata struct netlink_ext_ack *extack); 1577d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1578f1c2eddfSIdo Schimmel 1579f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1580f1c2eddfSIdo Schimmel { 1581f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1582f1c2eddfSIdo Schimmel } 15836bc506b4SIdo Schimmel #else 15846bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 15856bc506b4SIdo Schimmel { 15866bc506b4SIdo Schimmel return 0; 15876bc506b4SIdo Schimmel } 15886bc506b4SIdo Schimmel 15896bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 15906bc506b4SIdo Schimmel struct sk_buff *skb) 15916bc506b4SIdo Schimmel { 15926bc506b4SIdo Schimmel } 15936bc506b4SIdo Schimmel 15946bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 15956bc506b4SIdo Schimmel const struct sk_buff *skb) 15966bc506b4SIdo Schimmel { 15976bc506b4SIdo Schimmel return true; 15986bc506b4SIdo Schimmel } 15993922285dSArkadi Sharshevsky 16003922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 16013922285dSArkadi Sharshevsky unsigned long flags, 16023922285dSArkadi Sharshevsky unsigned long mask) 16033922285dSArkadi Sharshevsky { 16043922285dSArkadi Sharshevsky return 0; 16053922285dSArkadi Sharshevsky } 16066b26b51bSArkadi Sharshevsky 1607d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1608169327d5SPetr Machata u16 vid, u16 flags, 1609169327d5SPetr Machata struct netlink_ext_ack *extack) 1610d66e4348SPetr Machata { 1611d66e4348SPetr Machata return -EOPNOTSUPP; 1612d66e4348SPetr Machata } 1613d66e4348SPetr Machata 1614d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1615d66e4348SPetr Machata { 1616d66e4348SPetr Machata return -EOPNOTSUPP; 1617d66e4348SPetr Machata } 1618d66e4348SPetr Machata 16196b26b51bSArkadi Sharshevsky static inline void 16206b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 16216b26b51bSArkadi Sharshevsky { 16226b26b51bSArkadi Sharshevsky } 1623f1c2eddfSIdo Schimmel 1624f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1625f1c2eddfSIdo Schimmel { 1626f1c2eddfSIdo Schimmel } 16276bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 16286bc506b4SIdo Schimmel 1629057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1630821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1631057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1632057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1633ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1634ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1635ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 16361da177e4SLinus Torvalds #endif 1637