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 929632233eSNikolay Aleksandrov /* net_bridge_mcast_port must be always defined due to forwarding stubs */ 939632233eSNikolay Aleksandrov struct net_bridge_mcast_port { 949632233eSNikolay Aleksandrov #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 959632233eSNikolay Aleksandrov struct net_bridge_port *port; 96613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan; 979632233eSNikolay Aleksandrov 989632233eSNikolay Aleksandrov struct bridge_mcast_own_query ip4_own_query; 999632233eSNikolay Aleksandrov struct timer_list ip4_mc_router_timer; 1009632233eSNikolay Aleksandrov struct hlist_node ip4_rlist; 1019632233eSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 1029632233eSNikolay Aleksandrov struct bridge_mcast_own_query ip6_own_query; 1039632233eSNikolay Aleksandrov struct timer_list ip6_mc_router_timer; 1049632233eSNikolay Aleksandrov struct hlist_node ip6_rlist; 1059632233eSNikolay Aleksandrov #endif /* IS_ENABLED(CONFIG_IPV6) */ 1069632233eSNikolay Aleksandrov unsigned char multicast_router; 1079632233eSNikolay Aleksandrov #endif /* CONFIG_BRIDGE_IGMP_SNOOPING */ 1089632233eSNikolay Aleksandrov }; 1099632233eSNikolay Aleksandrov 110d3d065c0SNikolay Aleksandrov /* net_bridge_mcast must be always defined due to forwarding stubs */ 111d3d065c0SNikolay Aleksandrov struct net_bridge_mcast { 112d3d065c0SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 113d3d065c0SNikolay Aleksandrov struct net_bridge *br; 114613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan; 115d3d065c0SNikolay Aleksandrov 116d3d065c0SNikolay Aleksandrov u32 multicast_last_member_count; 117d3d065c0SNikolay Aleksandrov u32 multicast_startup_query_count; 118d3d065c0SNikolay Aleksandrov 119d3d065c0SNikolay Aleksandrov u8 multicast_igmp_version; 120d3d065c0SNikolay Aleksandrov u8 multicast_router; 121d3d065c0SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 122d3d065c0SNikolay Aleksandrov u8 multicast_mld_version; 123d3d065c0SNikolay Aleksandrov #endif 124d3d065c0SNikolay Aleksandrov unsigned long multicast_last_member_interval; 125d3d065c0SNikolay Aleksandrov unsigned long multicast_membership_interval; 126d3d065c0SNikolay Aleksandrov unsigned long multicast_querier_interval; 127d3d065c0SNikolay Aleksandrov unsigned long multicast_query_interval; 128d3d065c0SNikolay Aleksandrov unsigned long multicast_query_response_interval; 129d3d065c0SNikolay Aleksandrov unsigned long multicast_startup_query_interval; 130d3d065c0SNikolay Aleksandrov struct hlist_head ip4_mc_router_list; 131d3d065c0SNikolay Aleksandrov struct timer_list ip4_mc_router_timer; 132d3d065c0SNikolay Aleksandrov struct bridge_mcast_other_query ip4_other_query; 133d3d065c0SNikolay Aleksandrov struct bridge_mcast_own_query ip4_own_query; 134d3d065c0SNikolay Aleksandrov struct bridge_mcast_querier ip4_querier; 135d3d065c0SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 136d3d065c0SNikolay Aleksandrov struct hlist_head ip6_mc_router_list; 137d3d065c0SNikolay Aleksandrov struct timer_list ip6_mc_router_timer; 138d3d065c0SNikolay Aleksandrov struct bridge_mcast_other_query ip6_other_query; 139d3d065c0SNikolay Aleksandrov struct bridge_mcast_own_query ip6_own_query; 140d3d065c0SNikolay Aleksandrov struct bridge_mcast_querier ip6_querier; 141d3d065c0SNikolay Aleksandrov #endif /* IS_ENABLED(CONFIG_IPV6) */ 142d3d065c0SNikolay Aleksandrov #endif /* CONFIG_BRIDGE_IGMP_SNOOPING */ 143d3d065c0SNikolay Aleksandrov }; 144d3d065c0SNikolay Aleksandrov 145efa5356bSRoopa Prabhu struct br_tunnel_info { 146efa5356bSRoopa Prabhu __be64 tunnel_id; 14758e20717SNikolay Aleksandrov struct metadata_dst __rcu *tunnel_dst; 148efa5356bSRoopa Prabhu }; 149efa5356bSRoopa Prabhu 1509d332e69SNikolay Aleksandrov /* private vlan flags */ 1519d332e69SNikolay Aleksandrov enum { 1529d332e69SNikolay Aleksandrov BR_VLFLAG_PER_PORT_STATS = BIT(0), 15327973793SIdo Schimmel BR_VLFLAG_ADDED_BY_SWITCHDEV = BIT(1), 1547b54aaafSNikolay Aleksandrov BR_VLFLAG_MCAST_ENABLED = BIT(2), 1557b54aaafSNikolay Aleksandrov BR_VLFLAG_GLOBAL_MCAST_ENABLED = BIT(3), 1569d332e69SNikolay Aleksandrov }; 1579d332e69SNikolay Aleksandrov 1582594e906SNikolay Aleksandrov /** 1592594e906SNikolay Aleksandrov * struct net_bridge_vlan - per-vlan entry 1602594e906SNikolay Aleksandrov * 1612594e906SNikolay Aleksandrov * @vnode: rhashtable member 1622594e906SNikolay Aleksandrov * @vid: VLAN id 1632594e906SNikolay Aleksandrov * @flags: bridge vlan flags 1649d332e69SNikolay Aleksandrov * @priv_flags: private (in-kernel) bridge vlan flags 165a580c76dSNikolay Aleksandrov * @state: STP state (e.g. blocking, learning, forwarding) 1666dada9b1SNikolay Aleksandrov * @stats: per-cpu VLAN statistics 1672594e906SNikolay Aleksandrov * @br: if MASTER flag set, this points to a bridge struct 1682594e906SNikolay Aleksandrov * @port: if MASTER flag unset, this points to a port struct 1692594e906SNikolay Aleksandrov * @refcnt: if MASTER flag set, this is bumped for each port referencing it 1702594e906SNikolay Aleksandrov * @brvlan: if MASTER flag unset, this points to the global per-VLAN context 1712594e906SNikolay Aleksandrov * for this VLAN entry 172613d61dbSNikolay Aleksandrov * @br_mcast_ctx: if MASTER flag set, this is the global vlan multicast context 173613d61dbSNikolay Aleksandrov * @port_mcast_ctx: if MASTER flag unset, this is the per-port/vlan multicast 174613d61dbSNikolay Aleksandrov * context 1752594e906SNikolay Aleksandrov * @vlist: sorted list of VLAN entries 1762594e906SNikolay Aleksandrov * @rcu: used for entry destruction 1772594e906SNikolay Aleksandrov * 1782594e906SNikolay Aleksandrov * This structure is shared between the global per-VLAN entries contained in 1792594e906SNikolay Aleksandrov * the bridge rhashtable and the local per-port per-VLAN entries contained in 1802594e906SNikolay Aleksandrov * the port's rhashtable. The union entries should be interpreted depending on 1812594e906SNikolay Aleksandrov * the entry flags that are set. 1822594e906SNikolay Aleksandrov */ 1832594e906SNikolay Aleksandrov struct net_bridge_vlan { 1842594e906SNikolay Aleksandrov struct rhash_head vnode; 185efa5356bSRoopa Prabhu struct rhash_head tnode; 1862594e906SNikolay Aleksandrov u16 vid; 1872594e906SNikolay Aleksandrov u16 flags; 1889d332e69SNikolay Aleksandrov u16 priv_flags; 189a580c76dSNikolay Aleksandrov u8 state; 190281cc284SHeiner Kallweit struct pcpu_sw_netstats __percpu *stats; 191243a2e63SVlad Yasevich union { 192243a2e63SVlad Yasevich struct net_bridge *br; 1932594e906SNikolay Aleksandrov struct net_bridge_port *port; 1942594e906SNikolay Aleksandrov }; 1952594e906SNikolay Aleksandrov union { 19625127759SReshetova, Elena refcount_t refcnt; 1972594e906SNikolay Aleksandrov struct net_bridge_vlan *brvlan; 1982594e906SNikolay Aleksandrov }; 199efa5356bSRoopa Prabhu 200efa5356bSRoopa Prabhu struct br_tunnel_info tinfo; 201efa5356bSRoopa Prabhu 202613d61dbSNikolay Aleksandrov union { 203613d61dbSNikolay Aleksandrov struct net_bridge_mcast br_mcast_ctx; 204613d61dbSNikolay Aleksandrov struct net_bridge_mcast_port port_mcast_ctx; 205613d61dbSNikolay Aleksandrov }; 206613d61dbSNikolay Aleksandrov 2072594e906SNikolay Aleksandrov struct list_head vlist; 2082594e906SNikolay Aleksandrov 209243a2e63SVlad Yasevich struct rcu_head rcu; 2102594e906SNikolay Aleksandrov }; 2112594e906SNikolay Aleksandrov 2122594e906SNikolay Aleksandrov /** 2132594e906SNikolay Aleksandrov * struct net_bridge_vlan_group 2142594e906SNikolay Aleksandrov * 2152594e906SNikolay Aleksandrov * @vlan_hash: VLAN entry rhashtable 2162594e906SNikolay Aleksandrov * @vlan_list: sorted VLAN entry list 2172594e906SNikolay Aleksandrov * @num_vlans: number of total VLAN entries 21877751ee8SNikolay Aleksandrov * @pvid: PVID VLAN id 219a580c76dSNikolay Aleksandrov * @pvid_state: PVID's STP state (e.g. forwarding, learning, blocking) 2202594e906SNikolay Aleksandrov * 2212594e906SNikolay Aleksandrov * IMPORTANT: Be careful when checking if there're VLAN entries using list 2222594e906SNikolay Aleksandrov * primitives because the bridge can have entries in its list which 2232594e906SNikolay Aleksandrov * are just for global context but not for filtering, i.e. they have 2242594e906SNikolay Aleksandrov * the master flag set but not the brentry flag. If you have to check 2252594e906SNikolay Aleksandrov * if there're "real" entries in the bridge please test @num_vlans 2262594e906SNikolay Aleksandrov */ 2272594e906SNikolay Aleksandrov struct net_bridge_vlan_group { 2282594e906SNikolay Aleksandrov struct rhashtable vlan_hash; 229efa5356bSRoopa Prabhu struct rhashtable tunnel_hash; 2302594e906SNikolay Aleksandrov struct list_head vlan_list; 2316cbdceebSVlad Yasevich u16 num_vlans; 23277751ee8SNikolay Aleksandrov u16 pvid; 233a580c76dSNikolay Aleksandrov u8 pvid_state; 234243a2e63SVlad Yasevich }; 235243a2e63SVlad Yasevich 2366869c3b0SNikolay Aleksandrov /* bridge fdb flags */ 2376869c3b0SNikolay Aleksandrov enum { 2386869c3b0SNikolay Aleksandrov BR_FDB_LOCAL, 23929e63fffSNikolay Aleksandrov BR_FDB_STATIC, 240e0458d9aSNikolay Aleksandrov BR_FDB_STICKY, 241ac3ca6afSNikolay Aleksandrov BR_FDB_ADDED_BY_USER, 242b5cd9f7cSNikolay Aleksandrov BR_FDB_ADDED_BY_EXT_LEARN, 243d38c6e3dSNikolay Aleksandrov BR_FDB_OFFLOADED, 24431cbc39bSNikolay Aleksandrov BR_FDB_NOTIFY, 24531cbc39bSNikolay Aleksandrov BR_FDB_NOTIFY_INACTIVE 2466869c3b0SNikolay Aleksandrov }; 2476869c3b0SNikolay Aleksandrov 248eb793583SNikolay Aleksandrov struct net_bridge_fdb_key { 249eb793583SNikolay Aleksandrov mac_addr addr; 250eb793583SNikolay Aleksandrov u16 vlan_id; 251eb793583SNikolay Aleksandrov }; 252eb793583SNikolay Aleksandrov 2531214628cSNikolay Aleksandrov struct net_bridge_fdb_entry { 254eb793583SNikolay Aleksandrov struct rhash_head rhnode; 2551da177e4SLinus Torvalds struct net_bridge_port *dst; 2561da177e4SLinus Torvalds 257eb793583SNikolay Aleksandrov struct net_bridge_fdb_key key; 258eb793583SNikolay Aleksandrov struct hlist_node fdb_node; 2596869c3b0SNikolay Aleksandrov unsigned long flags; 2601214628cSNikolay Aleksandrov 2611214628cSNikolay Aleksandrov /* write-heavy members should not affect lookups */ 2621214628cSNikolay Aleksandrov unsigned long updated ____cacheline_aligned_in_smp; 2631214628cSNikolay Aleksandrov unsigned long used; 2641214628cSNikolay Aleksandrov 265b22fbf22SNikolay Aleksandrov struct rcu_head rcu; 2661da177e4SLinus Torvalds }; 2671da177e4SLinus Torvalds 2689d06b6d8SElad Raz #define MDB_PG_FLAGS_PERMANENT BIT(0) 2699d06b6d8SElad Raz #define MDB_PG_FLAGS_OFFLOAD BIT(1) 2703247b272SNikolay Aleksandrov #define MDB_PG_FLAGS_FAST_LEAVE BIT(2) 2718266a049SNikolay Aleksandrov #define MDB_PG_FLAGS_STAR_EXCL BIT(3) 2729116ffbfSNikolay Aleksandrov #define MDB_PG_FLAGS_BLOCKED BIT(4) 2739d06b6d8SElad Raz 2748b671779SNikolay Aleksandrov #define PG_SRC_ENT_LIMIT 32 2758b671779SNikolay Aleksandrov 2768b671779SNikolay Aleksandrov #define BR_SGRP_F_DELETE BIT(0) 2778b671779SNikolay Aleksandrov #define BR_SGRP_F_SEND BIT(1) 278b0812368SNikolay Aleksandrov #define BR_SGRP_F_INSTALLED BIT(2) 2798b671779SNikolay Aleksandrov 280e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc { 281e12cec65SNikolay Aleksandrov struct hlist_node gc_node; 282e12cec65SNikolay Aleksandrov void (*destroy)(struct net_bridge_mcast_gc *gc); 283e12cec65SNikolay Aleksandrov }; 284e12cec65SNikolay Aleksandrov 2858b671779SNikolay Aleksandrov struct net_bridge_group_src { 2868b671779SNikolay Aleksandrov struct hlist_node node; 2878b671779SNikolay Aleksandrov 2888b671779SNikolay Aleksandrov struct br_ip addr; 2898b671779SNikolay Aleksandrov struct net_bridge_port_group *pg; 2908b671779SNikolay Aleksandrov u8 flags; 291438ef2d0SNikolay Aleksandrov u8 src_query_rexmit_cnt; 2928b671779SNikolay Aleksandrov struct timer_list timer; 2938b671779SNikolay Aleksandrov 2948b671779SNikolay Aleksandrov struct net_bridge *br; 295e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2968b671779SNikolay Aleksandrov struct rcu_head rcu; 2978b671779SNikolay Aleksandrov }; 2988b671779SNikolay Aleksandrov 299085b53c8SNikolay Aleksandrov struct net_bridge_port_group_sg_key { 300eb1d1641SHerbert Xu struct net_bridge_port *port; 3018ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 302085b53c8SNikolay Aleksandrov }; 303085b53c8SNikolay Aleksandrov 304085b53c8SNikolay Aleksandrov struct net_bridge_port_group { 305085b53c8SNikolay Aleksandrov struct net_bridge_port_group __rcu *next; 306085b53c8SNikolay Aleksandrov struct net_bridge_port_group_sg_key key; 307206e7323SThomas Martitz unsigned char eth_addr[ETH_ALEN] __aligned(2); 3089d06b6d8SElad Raz unsigned char flags; 3098b671779SNikolay Aleksandrov unsigned char filter_mode; 31042c11ccfSNikolay Aleksandrov unsigned char grp_query_rexmit_cnt; 3118f8cb77eSNikolay Aleksandrov unsigned char rt_protocol; 3126ec0d0eeSNikolay Aleksandrov 3138b671779SNikolay Aleksandrov struct hlist_head src_list; 3148b671779SNikolay Aleksandrov unsigned int src_ents; 3156ec0d0eeSNikolay Aleksandrov struct timer_list timer; 31642c11ccfSNikolay Aleksandrov struct timer_list rexmit_timer; 3176ec0d0eeSNikolay Aleksandrov struct hlist_node mglist; 3188f07b831SNikolay Aleksandrov struct rb_root eht_set_tree; 3198f07b831SNikolay Aleksandrov struct rb_root eht_host_tree; 3206ec0d0eeSNikolay Aleksandrov 321085b53c8SNikolay Aleksandrov struct rhash_head rhnode; 322e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 3236ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 324eb1d1641SHerbert Xu }; 325eb1d1641SHerbert Xu 3261c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_entry { 32719e3a9c9SNikolay Aleksandrov struct rhash_head rhnode; 328eb1d1641SHerbert Xu struct net_bridge *br; 329e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 3308ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 331ff0fd34eSAndrew Lunn bool host_joined; 3326ec0d0eeSNikolay Aleksandrov 3336ec0d0eeSNikolay Aleksandrov struct timer_list timer; 33419e3a9c9SNikolay Aleksandrov struct hlist_node mdb_node; 3356ec0d0eeSNikolay Aleksandrov 336e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 3376ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 338eb1d1641SHerbert Xu }; 339eb1d1641SHerbert Xu 3401f90c7f3SNikolay Aleksandrov struct net_bridge_port { 3411da177e4SLinus Torvalds struct net_bridge *br; 3421da177e4SLinus Torvalds struct net_device *dev; 3431da177e4SLinus Torvalds struct list_head list; 3441da177e4SLinus Torvalds 3451f90c7f3SNikolay Aleksandrov unsigned long flags; 3461f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3471f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3481f90c7f3SNikolay Aleksandrov #endif 3492756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 3501f90c7f3SNikolay Aleksandrov 3511da177e4SLinus Torvalds /* STP */ 3521da177e4SLinus Torvalds u8 priority; 3531da177e4SLinus Torvalds u8 state; 3541da177e4SLinus Torvalds u16 port_no; 3551da177e4SLinus Torvalds unsigned char topology_change_ack; 3561da177e4SLinus Torvalds unsigned char config_pending; 3571da177e4SLinus Torvalds port_id port_id; 3581da177e4SLinus Torvalds port_id designated_port; 3591da177e4SLinus Torvalds bridge_id designated_root; 3601da177e4SLinus Torvalds bridge_id designated_bridge; 3611da177e4SLinus Torvalds u32 path_cost; 3621da177e4SLinus Torvalds u32 designated_cost; 3630c03150eSstephen hemminger unsigned long designated_age; 3641da177e4SLinus Torvalds 3651da177e4SLinus Torvalds struct timer_list forward_delay_timer; 3661da177e4SLinus Torvalds struct timer_list hold_timer; 3671da177e4SLinus Torvalds struct timer_list message_age_timer; 3681da177e4SLinus Torvalds struct kobject kobj; 3691da177e4SLinus Torvalds struct rcu_head rcu; 3703982d3d2SFischer, Anna 3719632233eSNikolay Aleksandrov struct net_bridge_mcast_port multicast_ctx; 3729632233eSNikolay Aleksandrov 373eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 3749632233eSNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 3759632233eSNikolay Aleksandrov 37689268b05SNikolay Aleksandrov u32 multicast_eht_hosts_limit; 37789268b05SNikolay Aleksandrov u32 multicast_eht_hosts_cnt; 378eb1d1641SHerbert Xu struct hlist_head mglist; 379eb1d1641SHerbert Xu #endif 380e0f43752SSimon Arlott 381e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 382e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 383e0f43752SSimon Arlott #endif 38491d2c34aSHerbert Xu 38591d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 38691d2c34aSHerbert Xu struct netpoll *np; 38791d2c34aSHerbert Xu #endif 3886bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 389*f7cf972fSTobias Waldekranz /* Identifier used to group ports that share the same switchdev 390*f7cf972fSTobias Waldekranz * hardware domain. 391*f7cf972fSTobias Waldekranz */ 392*f7cf972fSTobias Waldekranz int hwdom; 3936bc506b4SIdo Schimmel #endif 3945af48b59SNikolay Aleksandrov u16 group_fwd_mask; 3952756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 396de179966SVivien Didelot 397de179966SVivien Didelot struct bridge_stp_xstats stp_xstats; 3981da177e4SLinus Torvalds }; 3991da177e4SLinus Torvalds 400705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 401705e0deaSTyler Hicks 402e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 403f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 404e028e4b8SVlad Yasevich 405b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 406b5ed54e9Sstephen hemminger { 407716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 408b5ed54e9Sstephen hemminger } 409b5ed54e9Sstephen hemminger 4101fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 411b5ed54e9Sstephen hemminger { 41235f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 413ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 414b5ed54e9Sstephen hemminger } 415b5ed54e9Sstephen hemminger 4160baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 4170baa10ffSArkadi Sharshevsky { 41835f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 4190baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 4200baa10ffSArkadi Sharshevsky } 4210baa10ffSArkadi Sharshevsky 422ae75767eSNikolay Aleksandrov enum net_bridge_opts { 423ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 424ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 4258df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 4268df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 4278df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 428be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 42913cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 430675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 431675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 432675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 433675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 434c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 4353341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 4369163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 43770e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 4389c0ec2e7SMike Manning BROPT_VLAN_BRIDGE_BINDING, 439f4b7002aSNikolay Aleksandrov BROPT_MCAST_VLAN_SNOOPING_ENABLED, 440ae75767eSNikolay Aleksandrov }; 441ae75767eSNikolay Aleksandrov 4421f90c7f3SNikolay Aleksandrov struct net_bridge { 4431da177e4SLinus Torvalds spinlock_t lock; 4441f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 44590c628ddSHenrik Bjoernlund struct hlist_head frame_type_list; 4461da177e4SLinus Torvalds struct net_device *dev; 447ae75767eSNikolay Aleksandrov unsigned long options; 4481f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 4491f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 4501f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 4511f90c7f3SNikolay Aleksandrov u16 default_pvid; 4521f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 4531f90c7f3SNikolay Aleksandrov #endif 4541f90c7f3SNikolay Aleksandrov 455eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 45690c628ddSHenrik Bjoernlund struct list_head port_list; 45734666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 458efb6de9bSBernhard Thaler union { 4594adf0af6SSimon Wunderlich struct rtable fake_rtable; 460efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 461efb6de9bSBernhard Thaler }; 4624adf0af6SSimon Wunderlich #endif 463515853ccSstephen hemminger u16 group_fwd_mask; 464f2808d22SToshiaki Makita u16 group_fwd_mask_required; 465515853ccSstephen hemminger 4661da177e4SLinus Torvalds /* STP */ 4671da177e4SLinus Torvalds bridge_id designated_root; 4681da177e4SLinus Torvalds bridge_id bridge_id; 4691f90c7f3SNikolay Aleksandrov unsigned char topology_change; 4701f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 4711f90c7f3SNikolay Aleksandrov u16 root_port; 4721da177e4SLinus Torvalds unsigned long max_age; 4731da177e4SLinus Torvalds unsigned long hello_time; 4741da177e4SLinus Torvalds unsigned long forward_delay; 4751da177e4SLinus Torvalds unsigned long ageing_time; 47634d8acd8SVivien Didelot unsigned long bridge_max_age; 4771da177e4SLinus Torvalds unsigned long bridge_hello_time; 4781da177e4SLinus Torvalds unsigned long bridge_forward_delay; 47934d8acd8SVivien Didelot unsigned long bridge_ageing_time; 48035750b0bSNikolay Aleksandrov u32 root_path_cost; 4811da177e4SLinus Torvalds 482fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 4839cde0708SStephen Hemminger 4849cde0708SStephen Hemminger enum { 4859cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 4869cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 4879cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 4889cde0708SStephen Hemminger } stp_enabled; 4899cde0708SStephen Hemminger 490d3d065c0SNikolay Aleksandrov struct net_bridge_mcast multicast_ctx; 491d3d065c0SNikolay Aleksandrov 492eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 493d3d065c0SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 494eb1d1641SHerbert Xu 495eb1d1641SHerbert Xu u32 hash_max; 496eb1d1641SHerbert Xu 49735750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 498eb1d1641SHerbert Xu 49919e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 500085b53c8SNikolay Aleksandrov struct rhashtable sg_port_tbl; 50119e3a9c9SNikolay Aleksandrov 502e12cec65SNikolay Aleksandrov struct hlist_head mcast_gc_list; 50319e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 504eb1d1641SHerbert Xu 505e12cec65SNikolay Aleksandrov struct work_struct mcast_gc_work; 506eb1d1641SHerbert Xu #endif 507eb1d1641SHerbert Xu 5081da177e4SLinus Torvalds struct timer_list hello_timer; 5091da177e4SLinus Torvalds struct timer_list tcn_timer; 5101da177e4SLinus Torvalds struct timer_list topology_change_timer; 511f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 51243b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 513e028e4b8SVlad Yasevich u32 auto_cnt; 5146bc506b4SIdo Schimmel 5156bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 516*f7cf972fSTobias Waldekranz /* Counter used to make sure that hardware domains get unique 517*f7cf972fSTobias Waldekranz * identifiers in case a bridge spans multiple switchdev instances. 518*f7cf972fSTobias Waldekranz */ 519*f7cf972fSTobias Waldekranz int last_hwdom; 5206bc506b4SIdo Schimmel #endif 521eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 5224b8d7d4cSHoratiu Vultur 5234b8d7d4cSHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 5240169b820SHoratiu Vultur struct hlist_head mrp_list; 5254b8d7d4cSHoratiu Vultur #endif 526f323aa54SHenrik Bjoernlund #if IS_ENABLED(CONFIG_BRIDGE_CFM) 527f323aa54SHenrik Bjoernlund struct hlist_head mep_list; 528f323aa54SHenrik Bjoernlund #endif 5291da177e4SLinus Torvalds }; 5301da177e4SLinus Torvalds 53168b7c895SHerbert Xu struct br_input_skb_cb { 53268b7c895SHerbert Xu struct net_device *brdev; 53393fdd47eSHerbert Xu 5343c171f49SPablo Neira Ayuso u16 frag_max_size; 53532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 536f12064d1SFlorian Westphal u8 igmp; 537f12064d1SFlorian Westphal u8 mrouters_only:1; 53832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 539f12064d1SFlorian Westphal u8 proxyarp_replied:1; 540f12064d1SFlorian Westphal u8 src_port_isolated:1; 54120adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 542f12064d1SFlorian Westphal u8 vlan_filtered:1; 54320adfa1aSVlad Yasevich #endif 544223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 545223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 546223fd0adSFlorian Westphal #endif 5476bc506b4SIdo Schimmel 5486bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 549*f7cf972fSTobias Waldekranz /* The switchdev hardware domain from which this packet was received. 550*f7cf972fSTobias Waldekranz * If skb->offload_fwd_mark was set, then this packet was already 551*f7cf972fSTobias Waldekranz * forwarded by hardware to the other ports in the source hardware 552*f7cf972fSTobias Waldekranz * domain, otherwise it wasn't. 553*f7cf972fSTobias Waldekranz */ 554*f7cf972fSTobias Waldekranz int src_hwdom; 5556bc506b4SIdo Schimmel #endif 55668b7c895SHerbert Xu }; 55768b7c895SHerbert Xu 55868b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 55968b7c895SHerbert Xu 56032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 56132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 56232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 56332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 56432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 56532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 56628a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 56728a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 56828a16c97Sstephen hemminger 56928a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 57028a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 57128a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 57228a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 57328a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 57428a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 57528a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 57628a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 57728a16c97Sstephen hemminger 57828a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 57928a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 58028a16c97Sstephen hemminger 5811da177e4SLinus Torvalds /* called under bridge lock */ 5821da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 5831da177e4SLinus Torvalds { 5841da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 5851da177e4SLinus Torvalds } 5861da177e4SLinus Torvalds 5872594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 5882594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 5892594e906SNikolay Aleksandrov { 5902594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 5912594e906SNikolay Aleksandrov } 5922594e906SNikolay Aleksandrov 5932594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 5942594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 5952594e906SNikolay Aleksandrov { 5962594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 5972594e906SNikolay Aleksandrov } 5982594e906SNikolay Aleksandrov 5996be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 6002594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 6012594e906SNikolay Aleksandrov { 6022594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 6032594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 6042594e906SNikolay Aleksandrov return true; 6052594e906SNikolay Aleksandrov else 6062594e906SNikolay Aleksandrov return false; 6072594e906SNikolay Aleksandrov } 6082594e906SNikolay Aleksandrov 6092594e906SNikolay Aleksandrov return true; 6102594e906SNikolay Aleksandrov } 6112594e906SNikolay Aleksandrov 6125d1fcaf3SNikolay Aleksandrov static inline bool nbp_state_should_learn(const struct net_bridge_port *p) 6135d1fcaf3SNikolay Aleksandrov { 6145d1fcaf3SNikolay Aleksandrov return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; 6155d1fcaf3SNikolay Aleksandrov } 6165d1fcaf3SNikolay Aleksandrov 6178f4cc940SNikolay Aleksandrov static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack) 6185a46facbSNikolay Aleksandrov { 6198f4cc940SNikolay Aleksandrov bool ret = vid > 0 && vid < VLAN_VID_MASK; 6208f4cc940SNikolay Aleksandrov 6218f4cc940SNikolay Aleksandrov if (!ret) 6228f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid"); 6238f4cc940SNikolay Aleksandrov 6248f4cc940SNikolay Aleksandrov return ret; 6255a46facbSNikolay Aleksandrov } 6265a46facbSNikolay Aleksandrov 6275a46facbSNikolay Aleksandrov static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, 6288f4cc940SNikolay Aleksandrov const struct bridge_vlan_info *last, 6298f4cc940SNikolay Aleksandrov struct netlink_ext_ack *extack) 6305a46facbSNikolay Aleksandrov { 6315a46facbSNikolay Aleksandrov /* pvid flag is not allowed in ranges */ 6328f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_PVID) { 6338f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range"); 6345a46facbSNikolay Aleksandrov return false; 6358f4cc940SNikolay Aleksandrov } 6365a46facbSNikolay Aleksandrov 6375a46facbSNikolay Aleksandrov /* when cur is the range end, check if: 6385a46facbSNikolay Aleksandrov * - it has range start flag 6395a46facbSNikolay Aleksandrov * - range ids are invalid (end is equal to or before start) 6405a46facbSNikolay Aleksandrov */ 6415a46facbSNikolay Aleksandrov if (last) { 6428f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { 6438f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one"); 6445a46facbSNikolay Aleksandrov return false; 6458f4cc940SNikolay Aleksandrov } else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) { 6468f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing"); 6478f4cc940SNikolay Aleksandrov return false; 6488f4cc940SNikolay Aleksandrov } else if (cur->vid <= last->vid) { 6498f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); 6508f4cc940SNikolay Aleksandrov return false; 6518f4cc940SNikolay Aleksandrov } 6528f4cc940SNikolay Aleksandrov } 6538f4cc940SNikolay Aleksandrov 6548f4cc940SNikolay Aleksandrov /* check for required range flags */ 6558f4cc940SNikolay Aleksandrov if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 6568f4cc940SNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END))) { 6578f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing"); 6585a46facbSNikolay Aleksandrov return false; 6595a46facbSNikolay Aleksandrov } 6605a46facbSNikolay Aleksandrov 6615a46facbSNikolay Aleksandrov return true; 6625a46facbSNikolay Aleksandrov } 6635a46facbSNikolay Aleksandrov 664f545923bSNikolay Aleksandrov static inline int br_afspec_cmd_to_rtm(int cmd) 665f545923bSNikolay Aleksandrov { 666f545923bSNikolay Aleksandrov switch (cmd) { 667f545923bSNikolay Aleksandrov case RTM_SETLINK: 668f545923bSNikolay Aleksandrov return RTM_NEWVLAN; 669f545923bSNikolay Aleksandrov case RTM_DELLINK: 670f545923bSNikolay Aleksandrov return RTM_DELVLAN; 671f545923bSNikolay Aleksandrov } 672f545923bSNikolay Aleksandrov 673f545923bSNikolay Aleksandrov return 0; 674f545923bSNikolay Aleksandrov } 675f545923bSNikolay Aleksandrov 676ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 677ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 678ae75767eSNikolay Aleksandrov { 679ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 680ae75767eSNikolay Aleksandrov } 681ae75767eSNikolay Aleksandrov 682a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 683a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 684a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 685a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 686a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 687a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 688a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 689a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 690ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 691ae75767eSNikolay Aleksandrov 6921da177e4SLinus Torvalds /* br_device.c */ 693348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 694348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 695348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 696cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 69791d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 69891d2c34aSHerbert Xu struct sk_buff *skb) 69991d2c34aSHerbert Xu { 700f78ed220SEric Dumazet netpoll_send_skb(p->np, skb); 70191d2c34aSHerbert Xu } 70291d2c34aSHerbert Xu 703a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 704348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 70591d2c34aSHerbert Xu #else 7069f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 70791d2c34aSHerbert Xu struct sk_buff *skb) 70891d2c34aSHerbert Xu { 70991d2c34aSHerbert Xu } 71091d2c34aSHerbert Xu 711a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 71291d2c34aSHerbert Xu { 71391d2c34aSHerbert Xu return 0; 71491d2c34aSHerbert Xu } 71591d2c34aSHerbert Xu 71691d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 71791d2c34aSHerbert Xu { 71891d2c34aSHerbert Xu } 719cfb478daSstephen hemminger #endif 7201da177e4SLinus Torvalds 7211da177e4SLinus Torvalds /* br_fdb.c */ 722348662a1SJoe Perches int br_fdb_init(void); 723348662a1SJoe Perches void br_fdb_fini(void); 724eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 725eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 726348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 727424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 728424bb9c9SToshiaki Makita const struct net_bridge_port *p, 729424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 730348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 731348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 732f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 733348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 7341ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 735bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 736bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 737bfd0aeacSNikolay Aleksandrov __u16 vid); 738348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 739348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 740348662a1SJoe Perches unsigned long off); 741348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 742348662a1SJoe Perches const unsigned char *addr, u16 vid); 743348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 744be0c5677SNikolay Aleksandrov const unsigned char *addr, u16 vid, unsigned long flags); 74577162022SJohn Fastabend 746348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 747f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 748348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 74987b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 75087b0984eSPetr Machata struct netlink_ext_ack *extack); 751348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 752d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 75347674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 75447674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 75547674562SRoopa Prabhu struct netlink_ext_ack *extack); 7568db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 7578db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 7583aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 759161d82deSPetr Machata const unsigned char *addr, u16 vid, 760161d82deSPetr Machata bool swdev_notify); 7613aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 762161d82deSPetr Machata const unsigned char *addr, u16 vid, 763161d82deSPetr Machata bool swdev_notify); 7649fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 765e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 7661da177e4SLinus Torvalds 7671da177e4SLinus Torvalds /* br_forward.c */ 7688addd5e7SNikolay Aleksandrov enum br_pkt_type { 7698addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 7708addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 7718addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 7728addd5e7SNikolay Aleksandrov }; 7730c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 774b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 77537b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 7760c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 77737b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 7788addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 7791da177e4SLinus Torvalds 7807d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 7817d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 7827d850abdSNikolay Aleksandrov const struct sk_buff *skb) 7837d850abdSNikolay Aleksandrov { 7847d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 7857d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 7867d850abdSNikolay Aleksandrov } 7877d850abdSNikolay Aleksandrov 7881da177e4SLinus Torvalds /* br_if.c */ 789faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 790348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 791348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 792ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 793ca752be0SDavid Ahern struct netlink_ext_ack *extack); 794348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 795804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 796348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 797c8f44affSMichał Mirosław netdev_features_t features); 798e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 7992796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 8002756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 8011da177e4SLinus Torvalds 8021da177e4SLinus Torvalds /* br_input.c */ 8030c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 8049eb8eff0SVladimir Oltean rx_handler_func_t *br_get_rx_handler(const struct net_device *dev); 8051da177e4SLinus Torvalds 80690c628ddSHenrik Bjoernlund struct br_frame_type { 80790c628ddSHenrik Bjoernlund __be16 type; 80890c628ddSHenrik Bjoernlund int (*frame_handler)(struct net_bridge_port *port, 80990c628ddSHenrik Bjoernlund struct sk_buff *skb); 81090c628ddSHenrik Bjoernlund struct hlist_node list; 81190c628ddSHenrik Bjoernlund }; 81290c628ddSHenrik Bjoernlund 81390c628ddSHenrik Bjoernlund void br_add_frame(struct net_bridge *br, struct br_frame_type *ft); 81490c628ddSHenrik Bjoernlund void br_del_frame(struct net_bridge *br, struct br_frame_type *ft); 81590c628ddSHenrik Bjoernlund 816859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 817859828c0SJiri Pirko { 8189eb8eff0SVladimir Oltean return rcu_dereference(dev->rx_handler) == br_get_rx_handler(dev); 819859828c0SJiri Pirko } 820859828c0SJiri Pirko 8214d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 8224d4fd361SPetr Machata { 8239eb8eff0SVladimir Oltean return rcu_dereference_rtnl(dev->rx_handler) == br_get_rx_handler(dev); 8244d4fd361SPetr Machata } 8254d4fd361SPetr Machata 826859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 827859828c0SJiri Pirko { 828859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 829859828c0SJiri Pirko } 830859828c0SJiri Pirko 8314d4fd361SPetr Machata static inline struct net_bridge_port * 8324d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 8334d4fd361SPetr Machata { 8344d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 8354d4fd361SPetr Machata } 8364d4fd361SPetr Machata 8371da177e4SLinus Torvalds /* br_ioctl.c */ 838348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 839348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 840348662a1SJoe Perches void __user *arg); 8411da177e4SLinus Torvalds 842eb1d1641SHerbert Xu /* br_multicast.c */ 843eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 844f4b7002aSNikolay Aleksandrov int br_multicast_rcv(struct net_bridge_mcast **brmctx, 845f4b7002aSNikolay Aleksandrov struct net_bridge_mcast_port **pmctx, 846f4b7002aSNikolay Aleksandrov struct net_bridge_vlan *vlan, 847fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 848adc47037SNikolay Aleksandrov struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge_mcast *brmctx, 849eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 8501080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 851348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 852348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 853348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 854348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 855851d0a73SJoseph Huang void br_multicast_join_snoopers(struct net_bridge *br); 856851d0a73SJoseph Huang void br_multicast_leave_snoopers(struct net_bridge *br); 857348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 858348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 859e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 860adc47037SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, struct sk_buff *skb, 861adc47037SNikolay Aleksandrov struct net_bridge_mcast *brmctx, 862adc47037SNikolay Aleksandrov bool local_rcv, bool local_orig); 863348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 864348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 865ae1ea84bSFlorian Fainelli int br_multicast_toggle(struct net_bridge *br, unsigned long val, 866ae1ea84bSFlorian Fainelli struct netlink_ext_ack *extack); 867348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 868348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 8695e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 870aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 871aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 872aa2ae3e7SNikolay Aleksandrov #endif 873348662a1SJoe Perches struct net_bridge_mdb_entry * 87419e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 875348662a1SJoe Perches struct net_bridge_mdb_entry * 87619e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 877348662a1SJoe Perches struct net_bridge_port_group * 878348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 879762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 8808b671779SNikolay Aleksandrov unsigned char flags, const unsigned char *src, 8818f8cb77eSNikolay Aleksandrov u8 filter_mode, u8 rt_protocol); 88219e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 88319e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 88481f19838SNikolay Aleksandrov void br_mdb_notify(struct net_device *dev, struct net_bridge_mdb_entry *mp, 88581f19838SNikolay Aleksandrov struct net_bridge_port_group *pg, int type); 8861e9ca456SNikolay Aleksandrov void br_rtr_notify(struct net_device *dev, struct net_bridge_mcast_port *pmctx, 887949f1e39SSatish Ashok int type); 888681590bdSNikolay Aleksandrov void br_multicast_del_pg(struct net_bridge_mdb_entry *mp, 889681590bdSNikolay Aleksandrov struct net_bridge_port_group *pg, 890681590bdSNikolay Aleksandrov struct net_bridge_port_group __rcu **pp); 891adc47037SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, 892adc47037SNikolay Aleksandrov const struct net_bridge_port *p, 893a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 8941080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 895b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 8961080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 8971080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 8981080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 89919e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 90019e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 90158d913a3SNikolay Aleksandrov void br_multicast_host_join(const struct net_bridge_mcast *brmctx, 90258d913a3SNikolay Aleksandrov struct net_bridge_mdb_entry *mp, bool notify); 9031bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 9048266a049SNikolay Aleksandrov void br_multicast_star_g_handle_mode(struct net_bridge_port_group *pg, 9058266a049SNikolay Aleksandrov u8 filter_mode); 9068266a049SNikolay Aleksandrov void br_multicast_sg_add_exclude_ports(struct net_bridge_mdb_entry *star_mp, 9078266a049SNikolay Aleksandrov struct net_bridge_port_group *sg); 908474ddb37SNikolay Aleksandrov struct net_bridge_group_src * 909474ddb37SNikolay Aleksandrov br_multicast_find_group_src(struct net_bridge_port_group *pg, struct br_ip *ip); 910d5a10222SNikolay Aleksandrov void br_multicast_del_group_src(struct net_bridge_group_src *src, 911d5a10222SNikolay Aleksandrov bool fastleave); 912613d61dbSNikolay Aleksandrov void br_multicast_ctx_init(struct net_bridge *br, 913613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 914613d61dbSNikolay Aleksandrov struct net_bridge_mcast *brmctx); 915613d61dbSNikolay Aleksandrov void br_multicast_ctx_deinit(struct net_bridge_mcast *brmctx); 916613d61dbSNikolay Aleksandrov void br_multicast_port_ctx_init(struct net_bridge_port *port, 917613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 918613d61dbSNikolay Aleksandrov struct net_bridge_mcast_port *pmctx); 919613d61dbSNikolay Aleksandrov void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port *pmctx); 9207b54aaafSNikolay Aleksandrov void br_multicast_toggle_one_vlan(struct net_bridge_vlan *vlan, bool on); 921f4b7002aSNikolay Aleksandrov void br_multicast_toggle_vlan(struct net_bridge_vlan *vlan, bool on); 922f4b7002aSNikolay Aleksandrov int br_multicast_toggle_vlan_snooping(struct net_bridge *br, bool on, 923f4b7002aSNikolay Aleksandrov struct netlink_ext_ack *extack); 9249dee572cSNikolay Aleksandrov bool br_multicast_toggle_global_vlan(struct net_bridge_vlan *vlan, bool on); 92585b35269SSridhar Samudrala 926955062b0SNikolay Aleksandrov static inline bool br_group_is_l2(const struct br_ip *group) 927955062b0SNikolay Aleksandrov { 928955062b0SNikolay Aleksandrov return group->proto == 0; 929955062b0SNikolay Aleksandrov } 930955062b0SNikolay Aleksandrov 931cfd56754SCong Wang #define mlock_dereference(X, br) \ 932cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 933cfd56754SCong Wang 93444ebb081SLinus Lüssing static inline struct hlist_node * 935adc47037SNikolay Aleksandrov br_multicast_get_first_rport_node(struct net_bridge_mcast *brmctx, 936adc47037SNikolay Aleksandrov struct sk_buff *skb) 937d3d065c0SNikolay Aleksandrov { 938a3c02e76SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 939a3c02e76SLinus Lüssing if (skb->protocol == htons(ETH_P_IPV6)) 940d3d065c0SNikolay Aleksandrov return rcu_dereference(hlist_first_rcu(&brmctx->ip6_mc_router_list)); 941a3c02e76SLinus Lüssing #endif 942d3d065c0SNikolay Aleksandrov return rcu_dereference(hlist_first_rcu(&brmctx->ip4_mc_router_list)); 94344ebb081SLinus Lüssing } 94444ebb081SLinus Lüssing 94544ebb081SLinus Lüssing static inline struct net_bridge_port * 946d3d065c0SNikolay Aleksandrov br_multicast_rport_from_node_skb(struct hlist_node *rp, struct sk_buff *skb) 947d3d065c0SNikolay Aleksandrov { 9489632233eSNikolay Aleksandrov struct net_bridge_mcast_port *mctx; 9499632233eSNikolay Aleksandrov 950a3c02e76SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 951a3c02e76SLinus Lüssing if (skb->protocol == htons(ETH_P_IPV6)) 9529632233eSNikolay Aleksandrov mctx = hlist_entry_safe(rp, struct net_bridge_mcast_port, 9539632233eSNikolay Aleksandrov ip6_rlist); 9549632233eSNikolay Aleksandrov else 955a3c02e76SLinus Lüssing #endif 9569632233eSNikolay Aleksandrov mctx = hlist_entry_safe(rp, struct net_bridge_mcast_port, 9579632233eSNikolay Aleksandrov ip4_rlist); 9589632233eSNikolay Aleksandrov 9599632233eSNikolay Aleksandrov if (mctx) 9609632233eSNikolay Aleksandrov return mctx->port; 9619632233eSNikolay Aleksandrov else 9629632233eSNikolay Aleksandrov return NULL; 96344ebb081SLinus Lüssing } 96444ebb081SLinus Lüssing 965d3d065c0SNikolay Aleksandrov static inline bool br_ip4_multicast_is_router(struct net_bridge_mcast *brmctx) 96685b35269SSridhar Samudrala { 967d3d065c0SNikolay Aleksandrov return timer_pending(&brmctx->ip4_mc_router_timer); 9681a3065a2SLinus Lüssing } 9691a3065a2SLinus Lüssing 970d3d065c0SNikolay Aleksandrov static inline bool br_ip6_multicast_is_router(struct net_bridge_mcast *brmctx) 9711a3065a2SLinus Lüssing { 9721a3065a2SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 973d3d065c0SNikolay Aleksandrov return timer_pending(&brmctx->ip6_mc_router_timer); 9741a3065a2SLinus Lüssing #else 9751a3065a2SLinus Lüssing return false; 9761a3065a2SLinus Lüssing #endif 9771a3065a2SLinus Lüssing } 9781a3065a2SLinus Lüssing 9791a3065a2SLinus Lüssing static inline bool 980adc47037SNikolay Aleksandrov br_multicast_is_router(struct net_bridge_mcast *brmctx, struct sk_buff *skb) 9811a3065a2SLinus Lüssing { 982d3d065c0SNikolay Aleksandrov switch (brmctx->multicast_router) { 9831a3065a2SLinus Lüssing case MDB_RTR_TYPE_PERM: 9841a3065a2SLinus Lüssing return true; 9851a3065a2SLinus Lüssing case MDB_RTR_TYPE_TEMP_QUERY: 9861a3065a2SLinus Lüssing if (skb) { 9871a3065a2SLinus Lüssing if (skb->protocol == htons(ETH_P_IP)) 988d3d065c0SNikolay Aleksandrov return br_ip4_multicast_is_router(brmctx); 9891a3065a2SLinus Lüssing else if (skb->protocol == htons(ETH_P_IPV6)) 990d3d065c0SNikolay Aleksandrov return br_ip6_multicast_is_router(brmctx); 9911a3065a2SLinus Lüssing } else { 992d3d065c0SNikolay Aleksandrov return br_ip4_multicast_is_router(brmctx) || 993d3d065c0SNikolay Aleksandrov br_ip6_multicast_is_router(brmctx); 9941a3065a2SLinus Lüssing } 9951a3065a2SLinus Lüssing fallthrough; 9961a3065a2SLinus Lüssing default: 9971a3065a2SLinus Lüssing return false; 9981a3065a2SLinus Lüssing } 99985b35269SSridhar Samudrala } 1000b00589afSLinus Lüssing 1001cc0fdd80SLinus Lüssing static inline bool 1002adc47037SNikolay Aleksandrov __br_multicast_querier_exists(struct net_bridge_mcast *brmctx, 10030888d5f3Sdaniel struct bridge_mcast_other_query *querier, 10040888d5f3Sdaniel const bool is_ipv6) 1005b00589afSLinus Lüssing { 10060888d5f3Sdaniel bool own_querier_enabled; 10070888d5f3Sdaniel 1008adc47037SNikolay Aleksandrov if (br_opt_get(brmctx->br, BROPT_MULTICAST_QUERIER)) { 1009adc47037SNikolay Aleksandrov if (is_ipv6 && !br_opt_get(brmctx->br, BROPT_HAS_IPV6_ADDR)) 10100888d5f3Sdaniel own_querier_enabled = false; 10110888d5f3Sdaniel else 10120888d5f3Sdaniel own_querier_enabled = true; 10130888d5f3Sdaniel } else { 10140888d5f3Sdaniel own_querier_enabled = false; 10150888d5f3Sdaniel } 10160888d5f3Sdaniel 1017cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 10180888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 1019cc0fdd80SLinus Lüssing } 1020cc0fdd80SLinus Lüssing 1021adc47037SNikolay Aleksandrov static inline bool br_multicast_querier_exists(struct net_bridge_mcast *brmctx, 1022955062b0SNikolay Aleksandrov struct ethhdr *eth, 1023955062b0SNikolay Aleksandrov const struct net_bridge_mdb_entry *mdb) 1024cc0fdd80SLinus Lüssing { 1025cc0fdd80SLinus Lüssing switch (eth->h_proto) { 1026cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 1027adc47037SNikolay Aleksandrov return __br_multicast_querier_exists(brmctx, 1028adc47037SNikolay Aleksandrov &brmctx->ip4_other_query, false); 1029cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 1030cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 1031adc47037SNikolay Aleksandrov return __br_multicast_querier_exists(brmctx, 1032adc47037SNikolay Aleksandrov &brmctx->ip6_other_query, true); 1033cc0fdd80SLinus Lüssing #endif 1034cc0fdd80SLinus Lüssing default: 1035955062b0SNikolay Aleksandrov return !!mdb && br_group_is_l2(&mdb->addr); 1036cc0fdd80SLinus Lüssing } 1037b00589afSLinus Lüssing } 10381080ab95SNikolay Aleksandrov 103988d4bd18SNikolay Aleksandrov static inline bool br_multicast_is_star_g(const struct br_ip *ip) 104088d4bd18SNikolay Aleksandrov { 104188d4bd18SNikolay Aleksandrov switch (ip->proto) { 104288d4bd18SNikolay Aleksandrov case htons(ETH_P_IP): 104388d4bd18SNikolay Aleksandrov return ipv4_is_zeronet(ip->src.ip4); 104488d4bd18SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 104588d4bd18SNikolay Aleksandrov case htons(ETH_P_IPV6): 104688d4bd18SNikolay Aleksandrov return ipv6_addr_any(&ip->src.ip6); 104788d4bd18SNikolay Aleksandrov #endif 104888d4bd18SNikolay Aleksandrov default: 104988d4bd18SNikolay Aleksandrov return false; 105088d4bd18SNikolay Aleksandrov } 105188d4bd18SNikolay Aleksandrov } 105288d4bd18SNikolay Aleksandrov 1053adc47037SNikolay Aleksandrov static inline bool 1054adc47037SNikolay Aleksandrov br_multicast_should_handle_mode(const struct net_bridge_mcast *brmctx, 10558266a049SNikolay Aleksandrov __be16 proto) 10568266a049SNikolay Aleksandrov { 10578266a049SNikolay Aleksandrov switch (proto) { 10588266a049SNikolay Aleksandrov case htons(ETH_P_IP): 1059adc47037SNikolay Aleksandrov return !!(brmctx->multicast_igmp_version == 3); 10608266a049SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 10618266a049SNikolay Aleksandrov case htons(ETH_P_IPV6): 1062adc47037SNikolay Aleksandrov return !!(brmctx->multicast_mld_version == 2); 10638266a049SNikolay Aleksandrov #endif 10648266a049SNikolay Aleksandrov default: 10658266a049SNikolay Aleksandrov return false; 10668266a049SNikolay Aleksandrov } 10678266a049SNikolay Aleksandrov } 10688266a049SNikolay Aleksandrov 10691080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 10701080ab95SNikolay Aleksandrov { 10711080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 10721080ab95SNikolay Aleksandrov } 107342c11ccfSNikolay Aleksandrov 1074adc47037SNikolay Aleksandrov static inline unsigned long br_multicast_lmqt(const struct net_bridge_mcast *brmctx) 107542c11ccfSNikolay Aleksandrov { 1076adc47037SNikolay Aleksandrov return brmctx->multicast_last_member_interval * 1077adc47037SNikolay Aleksandrov brmctx->multicast_last_member_count; 107842c11ccfSNikolay Aleksandrov } 10790436862eSNikolay Aleksandrov 1080adc47037SNikolay Aleksandrov static inline unsigned long br_multicast_gmi(const struct net_bridge_mcast *brmctx) 10810436862eSNikolay Aleksandrov { 10820436862eSNikolay Aleksandrov /* use the RFC default of 2 for QRV */ 1083adc47037SNikolay Aleksandrov return 2 * brmctx->multicast_query_interval + 1084adc47037SNikolay Aleksandrov brmctx->multicast_query_response_interval; 10850436862eSNikolay Aleksandrov } 10867b54aaafSNikolay Aleksandrov 10877b54aaafSNikolay Aleksandrov static inline bool 10887b54aaafSNikolay Aleksandrov br_multicast_ctx_is_vlan(const struct net_bridge_mcast *brmctx) 10897b54aaafSNikolay Aleksandrov { 10907b54aaafSNikolay Aleksandrov return !!brmctx->vlan; 10917b54aaafSNikolay Aleksandrov } 10927b54aaafSNikolay Aleksandrov 10937b54aaafSNikolay Aleksandrov static inline bool 10947b54aaafSNikolay Aleksandrov br_multicast_port_ctx_is_vlan(const struct net_bridge_mcast_port *pmctx) 10957b54aaafSNikolay Aleksandrov { 10967b54aaafSNikolay Aleksandrov return !!pmctx->vlan; 10977b54aaafSNikolay Aleksandrov } 10987b54aaafSNikolay Aleksandrov 10997b54aaafSNikolay Aleksandrov static inline struct net_bridge_mcast * 11007b54aaafSNikolay Aleksandrov br_multicast_port_ctx_get_global(const struct net_bridge_mcast_port *pmctx) 11017b54aaafSNikolay Aleksandrov { 11027b54aaafSNikolay Aleksandrov if (!br_multicast_port_ctx_is_vlan(pmctx)) 11037b54aaafSNikolay Aleksandrov return &pmctx->port->br->multicast_ctx; 11047b54aaafSNikolay Aleksandrov else 11057b54aaafSNikolay Aleksandrov return &pmctx->vlan->brvlan->br_mcast_ctx; 11067b54aaafSNikolay Aleksandrov } 11077b54aaafSNikolay Aleksandrov 11087b54aaafSNikolay Aleksandrov static inline bool 11097b54aaafSNikolay Aleksandrov br_multicast_ctx_vlan_global_disabled(const struct net_bridge_mcast *brmctx) 11107b54aaafSNikolay Aleksandrov { 1111f4b7002aSNikolay Aleksandrov return br_opt_get(brmctx->br, BROPT_MCAST_VLAN_SNOOPING_ENABLED) && 1112f4b7002aSNikolay Aleksandrov br_multicast_ctx_is_vlan(brmctx) && 11137b54aaafSNikolay Aleksandrov !(brmctx->vlan->priv_flags & BR_VLFLAG_GLOBAL_MCAST_ENABLED); 11147b54aaafSNikolay Aleksandrov } 11157b54aaafSNikolay Aleksandrov 11167b54aaafSNikolay Aleksandrov static inline bool 11177b54aaafSNikolay Aleksandrov br_multicast_ctx_vlan_disabled(const struct net_bridge_mcast *brmctx) 11187b54aaafSNikolay Aleksandrov { 11197b54aaafSNikolay Aleksandrov return br_multicast_ctx_is_vlan(brmctx) && 11207b54aaafSNikolay Aleksandrov !(brmctx->vlan->priv_flags & BR_VLFLAG_MCAST_ENABLED); 11217b54aaafSNikolay Aleksandrov } 11227b54aaafSNikolay Aleksandrov 11237b54aaafSNikolay Aleksandrov static inline bool 11247b54aaafSNikolay Aleksandrov br_multicast_port_ctx_vlan_disabled(const struct net_bridge_mcast_port *pmctx) 11257b54aaafSNikolay Aleksandrov { 11267b54aaafSNikolay Aleksandrov return br_multicast_port_ctx_is_vlan(pmctx) && 11277b54aaafSNikolay Aleksandrov !(pmctx->vlan->priv_flags & BR_VLFLAG_MCAST_ENABLED); 11287b54aaafSNikolay Aleksandrov } 11294cdd0d10SNikolay Aleksandrov 11304cdd0d10SNikolay Aleksandrov static inline bool 11314cdd0d10SNikolay Aleksandrov br_multicast_port_ctx_state_disabled(const struct net_bridge_mcast_port *pmctx) 11324cdd0d10SNikolay Aleksandrov { 11334cdd0d10SNikolay Aleksandrov return pmctx->port->state == BR_STATE_DISABLED || 11344cdd0d10SNikolay Aleksandrov (br_multicast_port_ctx_is_vlan(pmctx) && 11354cdd0d10SNikolay Aleksandrov (br_multicast_port_ctx_vlan_disabled(pmctx) || 11364cdd0d10SNikolay Aleksandrov pmctx->vlan->state == BR_STATE_DISABLED)); 11374cdd0d10SNikolay Aleksandrov } 11384cdd0d10SNikolay Aleksandrov 11394cdd0d10SNikolay Aleksandrov static inline bool 11404cdd0d10SNikolay Aleksandrov br_multicast_port_ctx_state_stopped(const struct net_bridge_mcast_port *pmctx) 11414cdd0d10SNikolay Aleksandrov { 11424cdd0d10SNikolay Aleksandrov return br_multicast_port_ctx_state_disabled(pmctx) || 11434cdd0d10SNikolay Aleksandrov pmctx->port->state == BR_STATE_BLOCKING || 11444cdd0d10SNikolay Aleksandrov (br_multicast_port_ctx_is_vlan(pmctx) && 11454cdd0d10SNikolay Aleksandrov pmctx->vlan->state == BR_STATE_BLOCKING); 11464cdd0d10SNikolay Aleksandrov } 1147eb1d1641SHerbert Xu #else 1148f4b7002aSNikolay Aleksandrov static inline int br_multicast_rcv(struct net_bridge_mcast **brmctx, 1149f4b7002aSNikolay Aleksandrov struct net_bridge_mcast_port **pmctx, 1150f4b7002aSNikolay Aleksandrov struct net_bridge_vlan *vlan, 115106499098SVlad Yasevich struct sk_buff *skb, 115206499098SVlad Yasevich u16 vid) 1153eb1d1641SHerbert Xu { 1154eb1d1641SHerbert Xu return 0; 1155eb1d1641SHerbert Xu } 1156eb1d1641SHerbert Xu 1157adc47037SNikolay Aleksandrov static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge_mcast *brmctx, 1158fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 1159eb1d1641SHerbert Xu { 1160eb1d1641SHerbert Xu return NULL; 1161eb1d1641SHerbert Xu } 1162eb1d1641SHerbert Xu 11631080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 1164eb1d1641SHerbert Xu { 11651080ab95SNikolay Aleksandrov return 0; 1166eb1d1641SHerbert Xu } 1167eb1d1641SHerbert Xu 1168eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 1169eb1d1641SHerbert Xu { 1170eb1d1641SHerbert Xu } 1171eb1d1641SHerbert Xu 1172eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 1173eb1d1641SHerbert Xu { 1174eb1d1641SHerbert Xu } 1175eb1d1641SHerbert Xu 1176eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 1177eb1d1641SHerbert Xu { 1178eb1d1641SHerbert Xu } 1179eb1d1641SHerbert Xu 1180eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 1181eb1d1641SHerbert Xu { 1182eb1d1641SHerbert Xu } 1183eb1d1641SHerbert Xu 1184851d0a73SJoseph Huang static inline void br_multicast_join_snoopers(struct net_bridge *br) 1185851d0a73SJoseph Huang { 1186851d0a73SJoseph Huang } 1187851d0a73SJoseph Huang 1188851d0a73SJoseph Huang static inline void br_multicast_leave_snoopers(struct net_bridge *br) 1189851d0a73SJoseph Huang { 1190851d0a73SJoseph Huang } 1191851d0a73SJoseph Huang 1192eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 1193eb1d1641SHerbert Xu { 1194eb1d1641SHerbert Xu } 1195eb1d1641SHerbert Xu 1196eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 1197eb1d1641SHerbert Xu { 1198eb1d1641SHerbert Xu } 11995cb5e947SHerbert Xu 1200a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 1201a7ce45a7SNikolay Aleksandrov { 1202a7ce45a7SNikolay Aleksandrov } 1203a7ce45a7SNikolay Aleksandrov 120437b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 120537b090e6SNikolay Aleksandrov struct sk_buff *skb, 1206adc47037SNikolay Aleksandrov struct net_bridge_mcast *brmctx, 120737b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 12085cb5e947SHerbert Xu { 12095cb5e947SHerbert Xu } 12105cb5e947SHerbert Xu 1211adc47037SNikolay Aleksandrov static inline bool br_multicast_is_router(struct net_bridge_mcast *brmctx, 1212bbc6f2ccSNikolay Aleksandrov struct sk_buff *skb) 1213eb1d1641SHerbert Xu { 121403aaa9e2SGustavo A. R. Silva return false; 1215eb1d1641SHerbert Xu } 121637b090e6SNikolay Aleksandrov 1217adc47037SNikolay Aleksandrov static inline bool br_multicast_querier_exists(struct net_bridge_mcast *brmctx, 1218c43fd36fSVladimir Oltean struct ethhdr *eth, 1219c43fd36fSVladimir Oltean const struct net_bridge_mdb_entry *mdb) 1220b00589afSLinus Lüssing { 1221b00589afSLinus Lüssing return false; 1222b00589afSLinus Lüssing } 122337b090e6SNikolay Aleksandrov 1224fdb184d1SRami Rosen static inline void br_mdb_init(void) 1225fdb184d1SRami Rosen { 1226fdb184d1SRami Rosen } 122737b090e6SNikolay Aleksandrov 1228fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 1229fdb184d1SRami Rosen { 1230fdb184d1SRami Rosen } 12311080ab95SNikolay Aleksandrov 123219e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 123319e3a9c9SNikolay Aleksandrov { 123419e3a9c9SNikolay Aleksandrov return 0; 123519e3a9c9SNikolay Aleksandrov } 123619e3a9c9SNikolay Aleksandrov 123719e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 123819e3a9c9SNikolay Aleksandrov { 123919e3a9c9SNikolay Aleksandrov } 124019e3a9c9SNikolay Aleksandrov 12411080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 12421080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 1243a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 1244a65056ecSNikolay Aleksandrov u8 type, u8 dir) 12451080ab95SNikolay Aleksandrov { 12461080ab95SNikolay Aleksandrov } 12471080ab95SNikolay Aleksandrov 12481080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 12491080ab95SNikolay Aleksandrov { 12501080ab95SNikolay Aleksandrov return 0; 12511080ab95SNikolay Aleksandrov } 12521080ab95SNikolay Aleksandrov 1253b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 1254b6fe0440SIdo Schimmel { 1255b6fe0440SIdo Schimmel } 1256b6fe0440SIdo Schimmel 12571080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 12581080ab95SNikolay Aleksandrov { 12591080ab95SNikolay Aleksandrov return 0; 12601080ab95SNikolay Aleksandrov } 1261613d61dbSNikolay Aleksandrov 1262613d61dbSNikolay Aleksandrov static inline void br_multicast_ctx_init(struct net_bridge *br, 1263613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 1264613d61dbSNikolay Aleksandrov struct net_bridge_mcast *brmctx) 1265613d61dbSNikolay Aleksandrov { 1266613d61dbSNikolay Aleksandrov } 1267613d61dbSNikolay Aleksandrov 1268613d61dbSNikolay Aleksandrov static inline void br_multicast_ctx_deinit(struct net_bridge_mcast *brmctx) 1269613d61dbSNikolay Aleksandrov { 1270613d61dbSNikolay Aleksandrov } 1271613d61dbSNikolay Aleksandrov 1272613d61dbSNikolay Aleksandrov static inline void br_multicast_port_ctx_init(struct net_bridge_port *port, 1273613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 1274613d61dbSNikolay Aleksandrov struct net_bridge_mcast_port *pmctx) 1275613d61dbSNikolay Aleksandrov { 1276613d61dbSNikolay Aleksandrov } 1277613d61dbSNikolay Aleksandrov 1278613d61dbSNikolay Aleksandrov static inline void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port *pmctx) 1279613d61dbSNikolay Aleksandrov { 1280613d61dbSNikolay Aleksandrov } 12817b54aaafSNikolay Aleksandrov 12827b54aaafSNikolay Aleksandrov static inline void br_multicast_toggle_one_vlan(struct net_bridge_vlan *vlan, 12837b54aaafSNikolay Aleksandrov bool on) 12847b54aaafSNikolay Aleksandrov { 12857b54aaafSNikolay Aleksandrov } 1286f4b7002aSNikolay Aleksandrov 1287f4b7002aSNikolay Aleksandrov static inline void br_multicast_toggle_vlan(struct net_bridge_vlan *vlan, 1288f4b7002aSNikolay Aleksandrov bool on) 1289f4b7002aSNikolay Aleksandrov { 1290f4b7002aSNikolay Aleksandrov } 1291f4b7002aSNikolay Aleksandrov 1292f4b7002aSNikolay Aleksandrov static inline int br_multicast_toggle_vlan_snooping(struct net_bridge *br, 1293f4b7002aSNikolay Aleksandrov bool on, 1294f4b7002aSNikolay Aleksandrov struct netlink_ext_ack *extack) 1295f4b7002aSNikolay Aleksandrov { 1296f4b7002aSNikolay Aleksandrov return -EOPNOTSUPP; 1297f4b7002aSNikolay Aleksandrov } 12989dee572cSNikolay Aleksandrov 12999dee572cSNikolay Aleksandrov static inline bool br_multicast_toggle_global_vlan(struct net_bridge_vlan *vlan, 13009dee572cSNikolay Aleksandrov bool on) 13019dee572cSNikolay Aleksandrov { 13029dee572cSNikolay Aleksandrov return false; 13039dee572cSNikolay Aleksandrov } 130485b35269SSridhar Samudrala #endif 1305eb1d1641SHerbert Xu 1306243a2e63SVlad Yasevich /* br_vlan.c */ 1307243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 130877751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 130977751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 1310f4b7002aSNikolay Aleksandrov u16 *vid, u8 *state, 1311f4b7002aSNikolay Aleksandrov struct net_bridge_vlan **vlan); 131277751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 131385f46c6bSVlad Yasevich const struct sk_buff *skb); 1314e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 1315348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 131611538d03SRoopa Prabhu const struct net_bridge_port *port, 13172594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 131878851988SVlad Yasevich struct sk_buff *skb); 1319f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1320169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1321348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 1322348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 13232594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 1324204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 13259e781401SVladimir Oltean int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val, 13269e781401SVladimir Oltean struct netlink_ext_ack *extack); 1327dcbdf135SVladimir Oltean int __br_vlan_set_proto(struct net_bridge *br, __be16 proto, 1328dcbdf135SVladimir Oltean struct netlink_ext_ack *extack); 13299e781401SVladimir Oltean int br_vlan_set_proto(struct net_bridge *br, unsigned long val, 13309e781401SVladimir Oltean struct netlink_ext_ack *extack); 13316dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 13329163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 13335be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 13349e781401SVladimir Oltean int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val, 13359e781401SVladimir Oltean struct netlink_ext_ack *extack); 1336169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 1337169327d5SPetr Machata struct netlink_ext_ack *extack); 1338f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1339169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1340348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 1341348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 1342169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 13432594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 1344a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 1345281cc284SHeiner Kallweit struct pcpu_sw_netstats *stats); 13469c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 1347091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 13489c0ec2e7SMike Manning void *ptr); 13498dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void); 13508dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void); 1351cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 1352cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1353cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1354cf5bddb9SNikolay Aleksandrov int cmd); 1355a5d29ae2SNikolay Aleksandrov bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1356a5d29ae2SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 1357a37b85c9SVlad Yasevich 1358bcf2766bSFelix Fietkau void br_vlan_fill_forward_path_pvid(struct net_bridge *br, 1359bcf2766bSFelix Fietkau struct net_device_path_ctx *ctx, 1360bcf2766bSFelix Fietkau struct net_device_path *path); 1361bcf2766bSFelix Fietkau int br_vlan_fill_forward_path_mode(struct net_bridge *br, 1362bcf2766bSFelix Fietkau struct net_bridge_port *dst, 1363bcf2766bSFelix Fietkau struct net_device_path *path); 1364bcf2766bSFelix Fietkau 13652594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 1366a37b85c9SVlad Yasevich const struct net_bridge *br) 1367a37b85c9SVlad Yasevich { 1368907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 1369a37b85c9SVlad Yasevich } 1370a37b85c9SVlad Yasevich 13712594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 1372a37b85c9SVlad Yasevich const struct net_bridge_port *p) 1373a37b85c9SVlad Yasevich { 1374907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 1375907b1e6eSNikolay Aleksandrov } 1376907b1e6eSNikolay Aleksandrov 1377907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1378907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1379907b1e6eSNikolay Aleksandrov { 1380907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 1381907b1e6eSNikolay Aleksandrov } 1382907b1e6eSNikolay Aleksandrov 1383907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1384907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1385907b1e6eSNikolay Aleksandrov { 1386907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 1387a37b85c9SVlad Yasevich } 1388a37b85c9SVlad Yasevich 1389a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 1390a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 1391a37b85c9SVlad Yasevich */ 1392a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 1393a37b85c9SVlad Yasevich { 1394a37b85c9SVlad Yasevich int err = 0; 1395a37b85c9SVlad Yasevich 13962594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 13975978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 13982594e906SNikolay Aleksandrov } else { 1399a37b85c9SVlad Yasevich *vid = 0; 1400a37b85c9SVlad Yasevich err = -EINVAL; 1401a37b85c9SVlad Yasevich } 1402a37b85c9SVlad Yasevich 1403a37b85c9SVlad Yasevich return err; 1404a37b85c9SVlad Yasevich } 140578851988SVlad Yasevich 140677751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 140778851988SVlad Yasevich { 140877751ee8SNikolay Aleksandrov if (!vg) 14095be5a2dfSVlad Yasevich return 0; 14105be5a2dfSVlad Yasevich 141178851988SVlad Yasevich smp_rmb(); 141277751ee8SNikolay Aleksandrov return vg->pvid; 141378851988SVlad Yasevich } 141478851988SVlad Yasevich 14158dcea187SNikolay Aleksandrov static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) 14168dcea187SNikolay Aleksandrov { 14178dcea187SNikolay Aleksandrov return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags; 14188dcea187SNikolay Aleksandrov } 1419243a2e63SVlad Yasevich #else 142077751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 142177751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 14222594e906SNikolay Aleksandrov struct sk_buff *skb, 1423f4b7002aSNikolay Aleksandrov u16 *vid, u8 *state, 1424f4b7002aSNikolay Aleksandrov struct net_bridge_vlan **vlan) 1425f4b7002aSNikolay Aleksandrov 14262594e906SNikolay Aleksandrov { 1427f4b7002aSNikolay Aleksandrov *vlan = NULL; 14282594e906SNikolay Aleksandrov return true; 14292594e906SNikolay Aleksandrov } 14302594e906SNikolay Aleksandrov 14312594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 143285f46c6bSVlad Yasevich const struct sk_buff *skb) 143385f46c6bSVlad Yasevich { 143485f46c6bSVlad Yasevich return true; 143585f46c6bSVlad Yasevich } 143685f46c6bSVlad Yasevich 1437e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 1438e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 1439e0d7968aSToshiaki Makita { 1440e0d7968aSToshiaki Makita return true; 1441e0d7968aSToshiaki Makita } 1442e0d7968aSToshiaki Makita 144378851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 144411538d03SRoopa Prabhu const struct net_bridge_port *port, 14452594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 144678851988SVlad Yasevich struct sk_buff *skb) 144778851988SVlad Yasevich { 144878851988SVlad Yasevich return skb; 144978851988SVlad Yasevich } 145078851988SVlad Yasevich 1451f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1452169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1453243a2e63SVlad Yasevich { 1454f418af63SNikolay Aleksandrov *changed = false; 1455243a2e63SVlad Yasevich return -EOPNOTSUPP; 1456243a2e63SVlad Yasevich } 1457243a2e63SVlad Yasevich 1458243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 1459243a2e63SVlad Yasevich { 1460243a2e63SVlad Yasevich return -EOPNOTSUPP; 1461243a2e63SVlad Yasevich } 1462243a2e63SVlad Yasevich 1463243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1464243a2e63SVlad Yasevich { 1465243a2e63SVlad Yasevich } 1466243a2e63SVlad Yasevich 1467204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1468204177f3SToshiaki Makita { 1469204177f3SToshiaki Makita } 1470204177f3SToshiaki Makita 14715be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 14728580e211SToshiaki Makita { 14735be5a2dfSVlad Yasevich return 0; 14748580e211SToshiaki Makita } 14758580e211SToshiaki Makita 1476f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1477169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1478243a2e63SVlad Yasevich { 1479f418af63SNikolay Aleksandrov *changed = false; 1480243a2e63SVlad Yasevich return -EOPNOTSUPP; 1481243a2e63SVlad Yasevich } 1482243a2e63SVlad Yasevich 1483243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1484243a2e63SVlad Yasevich { 1485243a2e63SVlad Yasevich return -EOPNOTSUPP; 1486243a2e63SVlad Yasevich } 1487243a2e63SVlad Yasevich 1488243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1489243a2e63SVlad Yasevich { 1490243a2e63SVlad Yasevich } 1491243a2e63SVlad Yasevich 14922594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 14932594e906SNikolay Aleksandrov u16 vid) 1494a37b85c9SVlad Yasevich { 1495a37b85c9SVlad Yasevich return NULL; 1496a37b85c9SVlad Yasevich } 1497bc9a25d2SVlad Yasevich 1498169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1499169327d5SPetr Machata struct netlink_ext_ack *extack) 15005be5a2dfSVlad Yasevich { 15015be5a2dfSVlad Yasevich return 0; 15025be5a2dfSVlad Yasevich } 15035be5a2dfSVlad Yasevich 150478851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1505a37b85c9SVlad Yasevich { 1506a37b85c9SVlad Yasevich return 0; 1507a37b85c9SVlad Yasevich } 15082594e906SNikolay Aleksandrov 150977751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 151078851988SVlad Yasevich { 15113df6bf45SVlad Yasevich return 0; 151278851988SVlad Yasevich } 15132796d0c6SVlad Yasevich 15147a572964SVladimir Oltean static inline int br_vlan_filter_toggle(struct net_bridge *br, 1515c97f47e3SVladimir Oltean unsigned long val, 1516c97f47e3SVladimir Oltean struct netlink_ext_ack *extack) 1517a7854037SNikolay Aleksandrov { 1518a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1519a7854037SNikolay Aleksandrov } 15202594e906SNikolay Aleksandrov 15212594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 15222594e906SNikolay Aleksandrov u32 filter_mask) 15232594e906SNikolay Aleksandrov { 15242594e906SNikolay Aleksandrov return 0; 15252594e906SNikolay Aleksandrov } 15262594e906SNikolay Aleksandrov 1527bcf2766bSFelix Fietkau static inline void br_vlan_fill_forward_path_pvid(struct net_bridge *br, 1528bcf2766bSFelix Fietkau struct net_device_path_ctx *ctx, 1529bcf2766bSFelix Fietkau struct net_device_path *path) 1530bcf2766bSFelix Fietkau { 1531bcf2766bSFelix Fietkau } 1532bcf2766bSFelix Fietkau 1533bcf2766bSFelix Fietkau static inline int br_vlan_fill_forward_path_mode(struct net_bridge *br, 1534bcf2766bSFelix Fietkau struct net_bridge_port *dst, 1535bcf2766bSFelix Fietkau struct net_device_path *path) 1536bcf2766bSFelix Fietkau { 1537bcf2766bSFelix Fietkau return 0; 1538bcf2766bSFelix Fietkau } 1539bcf2766bSFelix Fietkau 15402594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 15412594e906SNikolay Aleksandrov const struct net_bridge *br) 15422594e906SNikolay Aleksandrov { 15432594e906SNikolay Aleksandrov return NULL; 15442594e906SNikolay Aleksandrov } 15452594e906SNikolay Aleksandrov 15462594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 15472594e906SNikolay Aleksandrov const struct net_bridge_port *p) 15482594e906SNikolay Aleksandrov { 15492594e906SNikolay Aleksandrov return NULL; 15502594e906SNikolay Aleksandrov } 1551907b1e6eSNikolay Aleksandrov 1552907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1553907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1554907b1e6eSNikolay Aleksandrov { 1555907b1e6eSNikolay Aleksandrov return NULL; 1556907b1e6eSNikolay Aleksandrov } 1557907b1e6eSNikolay Aleksandrov 1558907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1559907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1560907b1e6eSNikolay Aleksandrov { 1561907b1e6eSNikolay Aleksandrov return NULL; 1562907b1e6eSNikolay Aleksandrov } 1563a60c0903SNikolay Aleksandrov 1564a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1565281cc284SHeiner Kallweit struct pcpu_sw_netstats *stats) 1566a60c0903SNikolay Aleksandrov { 1567a60c0903SNikolay Aleksandrov } 15689c0ec2e7SMike Manning 15699c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 15709c0ec2e7SMike Manning unsigned long event) 15719c0ec2e7SMike Manning { 15729c0ec2e7SMike Manning } 15739c0ec2e7SMike Manning 1574091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 15759c0ec2e7SMike Manning unsigned long event, void *ptr) 15769c0ec2e7SMike Manning { 1577091adf9bSNikolay Aleksandrov return 0; 15789c0ec2e7SMike Manning } 15798dcea187SNikolay Aleksandrov 15808dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_init(void) 15818dcea187SNikolay Aleksandrov { 15828dcea187SNikolay Aleksandrov } 15838dcea187SNikolay Aleksandrov 15848dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_uninit(void) 15858dcea187SNikolay Aleksandrov { 15868dcea187SNikolay Aleksandrov } 1587cf5bddb9SNikolay Aleksandrov 1588cf5bddb9SNikolay Aleksandrov static inline void br_vlan_notify(const struct net_bridge *br, 1589cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1590cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1591cf5bddb9SNikolay Aleksandrov int cmd) 1592cf5bddb9SNikolay Aleksandrov { 1593cf5bddb9SNikolay Aleksandrov } 1594528ae84aSNikolay Aleksandrov 1595528ae84aSNikolay Aleksandrov static inline bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1596528ae84aSNikolay Aleksandrov const struct net_bridge_vlan *range_end) 1597528ae84aSNikolay Aleksandrov { 1598528ae84aSNikolay Aleksandrov return true; 1599528ae84aSNikolay Aleksandrov } 1600243a2e63SVlad Yasevich #endif 1601243a2e63SVlad Yasevich 16027a53e718SNikolay Aleksandrov /* br_vlan_options.c */ 16037a53e718SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 160499f7c5e0SNikolay Aleksandrov bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, 160599f7c5e0SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 16067a53e718SNikolay Aleksandrov bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v); 16077a53e718SNikolay Aleksandrov size_t br_vlan_opts_nl_size(void); 1608a5d29ae2SNikolay Aleksandrov int br_vlan_process_options(const struct net_bridge *br, 1609a5d29ae2SNikolay Aleksandrov const struct net_bridge_port *p, 1610a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_start, 1611a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_end, 1612a5d29ae2SNikolay Aleksandrov struct nlattr **tb, 1613a5d29ae2SNikolay Aleksandrov struct netlink_ext_ack *extack); 161447ecd2dbSNikolay Aleksandrov int br_vlan_rtm_process_global_options(struct net_device *dev, 161547ecd2dbSNikolay Aleksandrov const struct nlattr *attr, 161647ecd2dbSNikolay Aleksandrov int cmd, 161747ecd2dbSNikolay Aleksandrov struct netlink_ext_ack *extack); 1618743a53d9SNikolay Aleksandrov bool br_vlan_global_opts_can_enter_range(const struct net_bridge_vlan *v_curr, 1619743a53d9SNikolay Aleksandrov const struct net_bridge_vlan *r_end); 1620743a53d9SNikolay Aleksandrov bool br_vlan_global_opts_fill(struct sk_buff *skb, u16 vid, u16 vid_range, 1621743a53d9SNikolay Aleksandrov const struct net_bridge_vlan *v_opts); 1622a580c76dSNikolay Aleksandrov 1623a580c76dSNikolay Aleksandrov /* vlan state manipulation helpers using *_ONCE to annotate lock-free access */ 1624a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v) 1625a580c76dSNikolay Aleksandrov { 1626a580c76dSNikolay Aleksandrov return READ_ONCE(v->state); 1627a580c76dSNikolay Aleksandrov } 1628a580c76dSNikolay Aleksandrov 1629a580c76dSNikolay Aleksandrov static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state) 1630a580c76dSNikolay Aleksandrov { 1631a580c76dSNikolay Aleksandrov WRITE_ONCE(v->state, state); 1632a580c76dSNikolay Aleksandrov } 1633a580c76dSNikolay Aleksandrov 1634a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg) 1635a580c76dSNikolay Aleksandrov { 1636a580c76dSNikolay Aleksandrov return READ_ONCE(vg->pvid_state); 1637a580c76dSNikolay Aleksandrov } 1638a580c76dSNikolay Aleksandrov 1639a580c76dSNikolay Aleksandrov static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg, 1640a580c76dSNikolay Aleksandrov u8 state) 1641a580c76dSNikolay Aleksandrov { 1642a580c76dSNikolay Aleksandrov WRITE_ONCE(vg->pvid_state, state); 1643a580c76dSNikolay Aleksandrov } 1644a580c76dSNikolay Aleksandrov 1645a580c76dSNikolay Aleksandrov /* learn_allow is true at ingress and false at egress */ 1646a580c76dSNikolay Aleksandrov static inline bool br_vlan_state_allowed(u8 state, bool learn_allow) 1647a580c76dSNikolay Aleksandrov { 1648a580c76dSNikolay Aleksandrov switch (state) { 1649a580c76dSNikolay Aleksandrov case BR_STATE_LEARNING: 1650a580c76dSNikolay Aleksandrov return learn_allow; 1651a580c76dSNikolay Aleksandrov case BR_STATE_FORWARDING: 1652a580c76dSNikolay Aleksandrov return true; 1653a580c76dSNikolay Aleksandrov default: 1654a580c76dSNikolay Aleksandrov return false; 1655a580c76dSNikolay Aleksandrov } 1656a580c76dSNikolay Aleksandrov } 16577a53e718SNikolay Aleksandrov #endif 16587a53e718SNikolay Aleksandrov 16591a4ba64dSPablo Neira Ayuso struct nf_br_ops { 16601a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 16611a4ba64dSPablo Neira Ayuso }; 16621a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 16631a4ba64dSPablo Neira Ayuso 16641da177e4SLinus Torvalds /* br_netfilter.c */ 166534666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 166634666d46SPablo Neira Ayuso int br_nf_core_init(void); 166734666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1668348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1669c0909713SStephen Hemminger #else 167034666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 167134666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 16724adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1673c0909713SStephen Hemminger #endif 16741da177e4SLinus Torvalds 16751da177e4SLinus Torvalds /* br_stp.c */ 1676775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1677348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1678348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1679348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 16801da177e4SLinus Torvalds 1681348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1682348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1683348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1684348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 168582dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 16869e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 168714f98f25Sstephen hemminger 168814f98f25Sstephen hemminger 16891da177e4SLinus Torvalds /* br_stp_if.c */ 1690348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1691348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1692419dba8aSHoratiu Vultur int br_stp_set_enabled(struct net_bridge *br, unsigned long val, 1693419dba8aSHoratiu Vultur struct netlink_ext_ack *extack); 1694348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1695348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1696348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1697348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1698348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1699348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1700348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1701348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 17021da177e4SLinus Torvalds 17031da177e4SLinus Torvalds /* br_stp_bpdu.c */ 17047c85fbf0SPatrick McHardy struct stp_proto; 1705348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 17067c85fbf0SPatrick McHardy struct net_device *dev); 17071da177e4SLinus Torvalds 17081da177e4SLinus Torvalds /* br_stp_timer.c */ 1709348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1710348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1711348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 17121da177e4SLinus Torvalds 17131da177e4SLinus Torvalds /* br.c */ 1714e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1715da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1716da678292SMichał Mirosław #endif 17171da177e4SLinus Torvalds 171865369933SHoratiu Vultur /* br_mrp.c */ 171965369933SHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 172065369933SHoratiu Vultur int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 172165369933SHoratiu Vultur struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 172265369933SHoratiu Vultur bool br_mrp_enabled(struct net_bridge *br); 172365369933SHoratiu Vultur void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p); 1724df42ef22SHoratiu Vultur int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br); 172565369933SHoratiu Vultur #else 172665369933SHoratiu Vultur static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 172765369933SHoratiu Vultur struct nlattr *attr, int cmd, 172865369933SHoratiu Vultur struct netlink_ext_ack *extack) 172965369933SHoratiu Vultur { 173065369933SHoratiu Vultur return -EOPNOTSUPP; 173165369933SHoratiu Vultur } 173265369933SHoratiu Vultur 173365369933SHoratiu Vultur static inline bool br_mrp_enabled(struct net_bridge *br) 173465369933SHoratiu Vultur { 17358741e184SJason Yan return false; 173665369933SHoratiu Vultur } 173765369933SHoratiu Vultur 173865369933SHoratiu Vultur static inline void br_mrp_port_del(struct net_bridge *br, 173965369933SHoratiu Vultur struct net_bridge_port *p) 174065369933SHoratiu Vultur { 174165369933SHoratiu Vultur } 1742df42ef22SHoratiu Vultur 1743df42ef22SHoratiu Vultur static inline int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br) 1744df42ef22SHoratiu Vultur { 1745df42ef22SHoratiu Vultur return 0; 1746df42ef22SHoratiu Vultur } 1747df42ef22SHoratiu Vultur 174865369933SHoratiu Vultur #endif 174965369933SHoratiu Vultur 17502be665c3SHenrik Bjoernlund /* br_cfm.c */ 175186a14b79SHenrik Bjoernlund #if IS_ENABLED(CONFIG_BRIDGE_CFM) 17522be665c3SHenrik Bjoernlund int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p, 17532be665c3SHenrik Bjoernlund struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 17542be665c3SHenrik Bjoernlund bool br_cfm_created(struct net_bridge *br); 175586a14b79SHenrik Bjoernlund void br_cfm_port_del(struct net_bridge *br, struct net_bridge_port *p); 17565e312fc0SHenrik Bjoernlund int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br); 1757b6d0425bSHenrik Bjoernlund int br_cfm_status_fill_info(struct sk_buff *skb, 1758b6d0425bSHenrik Bjoernlund struct net_bridge *br, 1759b6d0425bSHenrik Bjoernlund bool getlink); 1760b6d0425bSHenrik Bjoernlund int br_cfm_mep_count(struct net_bridge *br, u32 *count); 1761b6d0425bSHenrik Bjoernlund int br_cfm_peer_mep_count(struct net_bridge *br, u32 *count); 176286a14b79SHenrik Bjoernlund #else 17632be665c3SHenrik Bjoernlund static inline int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p, 17642be665c3SHenrik Bjoernlund struct nlattr *attr, int cmd, 17652be665c3SHenrik Bjoernlund struct netlink_ext_ack *extack) 17662be665c3SHenrik Bjoernlund { 17672be665c3SHenrik Bjoernlund return -EOPNOTSUPP; 17682be665c3SHenrik Bjoernlund } 17692be665c3SHenrik Bjoernlund 17702be665c3SHenrik Bjoernlund static inline bool br_cfm_created(struct net_bridge *br) 17712be665c3SHenrik Bjoernlund { 17722be665c3SHenrik Bjoernlund return false; 17732be665c3SHenrik Bjoernlund } 17742be665c3SHenrik Bjoernlund 177586a14b79SHenrik Bjoernlund static inline void br_cfm_port_del(struct net_bridge *br, 177686a14b79SHenrik Bjoernlund struct net_bridge_port *p) 177786a14b79SHenrik Bjoernlund { 177886a14b79SHenrik Bjoernlund } 17795e312fc0SHenrik Bjoernlund 17805e312fc0SHenrik Bjoernlund static inline int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br) 17815e312fc0SHenrik Bjoernlund { 17825e312fc0SHenrik Bjoernlund return -EOPNOTSUPP; 17835e312fc0SHenrik Bjoernlund } 1784e77824d8SHenrik Bjoernlund 1785b6d0425bSHenrik Bjoernlund static inline int br_cfm_status_fill_info(struct sk_buff *skb, 1786b6d0425bSHenrik Bjoernlund struct net_bridge *br, 1787b6d0425bSHenrik Bjoernlund bool getlink) 1788b6d0425bSHenrik Bjoernlund { 1789b6d0425bSHenrik Bjoernlund return -EOPNOTSUPP; 1790b6d0425bSHenrik Bjoernlund } 1791b6d0425bSHenrik Bjoernlund 1792b6d0425bSHenrik Bjoernlund static inline int br_cfm_mep_count(struct net_bridge *br, u32 *count) 1793b6d0425bSHenrik Bjoernlund { 1794b6d0425bSHenrik Bjoernlund return -EOPNOTSUPP; 1795b6d0425bSHenrik Bjoernlund } 1796b6d0425bSHenrik Bjoernlund 1797b6d0425bSHenrik Bjoernlund static inline int br_cfm_peer_mep_count(struct net_bridge *br, u32 *count) 1798e77824d8SHenrik Bjoernlund { 1799e77824d8SHenrik Bjoernlund return -EOPNOTSUPP; 1800e77824d8SHenrik Bjoernlund } 180186a14b79SHenrik Bjoernlund #endif 180286a14b79SHenrik Bjoernlund 180311dc1f36SStephen Hemminger /* br_netlink.c */ 1804149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1805348662a1SJoe Perches int br_netlink_init(void); 1806348662a1SJoe Perches void br_netlink_fini(void); 180792899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 180892899063SNikolay Aleksandrov const struct net_bridge_port *port); 1809b6d0425bSHenrik Bjoernlund void br_info_notify(int event, const struct net_bridge *br, 1810b6d0425bSHenrik Bjoernlund const struct net_bridge_port *port, u32 filter); 18112fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 18122fd527b7SPetr Machata struct netlink_ext_ack *extack); 1813add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1814348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 181546c264daSNicolas Dichtel u32 filter_mask, int nlflags); 1816f26b2965SNikolay Aleksandrov int br_process_vlan_info(struct net_bridge *br, 1817f26b2965SNikolay Aleksandrov struct net_bridge_port *p, int cmd, 1818f26b2965SNikolay Aleksandrov struct bridge_vlan_info *vinfo_curr, 1819f26b2965SNikolay Aleksandrov struct bridge_vlan_info **vinfo_last, 1820f26b2965SNikolay Aleksandrov bool *changed, 1821f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack); 182211dc1f36SStephen Hemminger 18231da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 18241da177e4SLinus Torvalds /* br_sysfs_if.c */ 182552cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1826348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1827348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 18281da177e4SLinus Torvalds 18291da177e4SLinus Torvalds /* br_sysfs_br.c */ 1830348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1831348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 18321da177e4SLinus Torvalds 18331da177e4SLinus Torvalds #else 18341da177e4SLinus Torvalds 18350cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 18360cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 18370cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 18380cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 18391da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 18401da177e4SLinus Torvalds 18416bc506b4SIdo Schimmel /* br_switchdev.c */ 18426bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 1843*f7cf972fSTobias Waldekranz int nbp_switchdev_hwdom_set(struct net_bridge_port *p); 18446bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 18456bc506b4SIdo Schimmel struct sk_buff *skb); 18466bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 18476bc506b4SIdo Schimmel const struct sk_buff *skb); 18483922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 18493922285dSArkadi Sharshevsky unsigned long flags, 1850078bbb85SVladimir Oltean unsigned long mask, 1851078bbb85SVladimir Oltean struct netlink_ext_ack *extack); 18526eb38bf8STobias Waldekranz void br_switchdev_fdb_notify(struct net_bridge *br, 18536eb38bf8STobias Waldekranz const struct net_bridge_fdb_entry *fdb, int type); 1854169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1855169327d5SPetr Machata struct netlink_ext_ack *extack); 1856d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1857f1c2eddfSIdo Schimmel 1858f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1859f1c2eddfSIdo Schimmel { 1860f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1861f1c2eddfSIdo Schimmel } 18626bc506b4SIdo Schimmel #else 1863*f7cf972fSTobias Waldekranz static inline int nbp_switchdev_hwdom_set(struct net_bridge_port *p) 18646bc506b4SIdo Schimmel { 18656bc506b4SIdo Schimmel return 0; 18666bc506b4SIdo Schimmel } 18676bc506b4SIdo Schimmel 18686bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 18696bc506b4SIdo Schimmel struct sk_buff *skb) 18706bc506b4SIdo Schimmel { 18716bc506b4SIdo Schimmel } 18726bc506b4SIdo Schimmel 18736bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 18746bc506b4SIdo Schimmel const struct sk_buff *skb) 18756bc506b4SIdo Schimmel { 18766bc506b4SIdo Schimmel return true; 18776bc506b4SIdo Schimmel } 18783922285dSArkadi Sharshevsky 18793922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 18803922285dSArkadi Sharshevsky unsigned long flags, 1881078bbb85SVladimir Oltean unsigned long mask, 1882078bbb85SVladimir Oltean struct netlink_ext_ack *extack) 18833922285dSArkadi Sharshevsky { 18843922285dSArkadi Sharshevsky return 0; 18853922285dSArkadi Sharshevsky } 18866b26b51bSArkadi Sharshevsky 1887d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1888169327d5SPetr Machata u16 vid, u16 flags, 1889169327d5SPetr Machata struct netlink_ext_ack *extack) 1890d66e4348SPetr Machata { 1891d66e4348SPetr Machata return -EOPNOTSUPP; 1892d66e4348SPetr Machata } 1893d66e4348SPetr Machata 1894d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1895d66e4348SPetr Machata { 1896d66e4348SPetr Machata return -EOPNOTSUPP; 1897d66e4348SPetr Machata } 1898d66e4348SPetr Machata 18996b26b51bSArkadi Sharshevsky static inline void 19006eb38bf8STobias Waldekranz br_switchdev_fdb_notify(struct net_bridge *br, 19016eb38bf8STobias Waldekranz const struct net_bridge_fdb_entry *fdb, int type) 19026b26b51bSArkadi Sharshevsky { 19036b26b51bSArkadi Sharshevsky } 1904f1c2eddfSIdo Schimmel 1905f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1906f1c2eddfSIdo Schimmel { 1907f1c2eddfSIdo Schimmel } 19086bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 19096bc506b4SIdo Schimmel 1910057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1911821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1912057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1913057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1914ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1915ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1916ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 19171da177e4SLinus Torvalds #endif 1918