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 3896bc506b4SIdo Schimmel int offload_fwd_mark; 3906bc506b4SIdo Schimmel #endif 3915af48b59SNikolay Aleksandrov u16 group_fwd_mask; 3922756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 393de179966SVivien Didelot 394de179966SVivien Didelot struct bridge_stp_xstats stp_xstats; 3951da177e4SLinus Torvalds }; 3961da177e4SLinus Torvalds 397705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 398705e0deaSTyler Hicks 399e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 400f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 401e028e4b8SVlad Yasevich 402b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 403b5ed54e9Sstephen hemminger { 404716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 405b5ed54e9Sstephen hemminger } 406b5ed54e9Sstephen hemminger 4071fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 408b5ed54e9Sstephen hemminger { 40935f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 410ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 411b5ed54e9Sstephen hemminger } 412b5ed54e9Sstephen hemminger 4130baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 4140baa10ffSArkadi Sharshevsky { 41535f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 4160baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 4170baa10ffSArkadi Sharshevsky } 4180baa10ffSArkadi Sharshevsky 419ae75767eSNikolay Aleksandrov enum net_bridge_opts { 420ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 421ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 4228df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 4238df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 4248df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 425be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 42613cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 427675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 428675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 429675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 430675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 431c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 4323341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 4339163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 43470e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 4359c0ec2e7SMike Manning BROPT_VLAN_BRIDGE_BINDING, 436f4b7002aSNikolay Aleksandrov BROPT_MCAST_VLAN_SNOOPING_ENABLED, 437ae75767eSNikolay Aleksandrov }; 438ae75767eSNikolay Aleksandrov 4391f90c7f3SNikolay Aleksandrov struct net_bridge { 4401da177e4SLinus Torvalds spinlock_t lock; 4411f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 44290c628ddSHenrik Bjoernlund struct hlist_head frame_type_list; 4431da177e4SLinus Torvalds struct net_device *dev; 444ae75767eSNikolay Aleksandrov unsigned long options; 4451f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 4461f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 4471f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 4481f90c7f3SNikolay Aleksandrov u16 default_pvid; 4491f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 4501f90c7f3SNikolay Aleksandrov #endif 4511f90c7f3SNikolay Aleksandrov 452eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 45390c628ddSHenrik Bjoernlund struct list_head port_list; 45434666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 455efb6de9bSBernhard Thaler union { 4564adf0af6SSimon Wunderlich struct rtable fake_rtable; 457efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 458efb6de9bSBernhard Thaler }; 4594adf0af6SSimon Wunderlich #endif 460515853ccSstephen hemminger u16 group_fwd_mask; 461f2808d22SToshiaki Makita u16 group_fwd_mask_required; 462515853ccSstephen hemminger 4631da177e4SLinus Torvalds /* STP */ 4641da177e4SLinus Torvalds bridge_id designated_root; 4651da177e4SLinus Torvalds bridge_id bridge_id; 4661f90c7f3SNikolay Aleksandrov unsigned char topology_change; 4671f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 4681f90c7f3SNikolay Aleksandrov u16 root_port; 4691da177e4SLinus Torvalds unsigned long max_age; 4701da177e4SLinus Torvalds unsigned long hello_time; 4711da177e4SLinus Torvalds unsigned long forward_delay; 4721da177e4SLinus Torvalds unsigned long ageing_time; 47334d8acd8SVivien Didelot unsigned long bridge_max_age; 4741da177e4SLinus Torvalds unsigned long bridge_hello_time; 4751da177e4SLinus Torvalds unsigned long bridge_forward_delay; 47634d8acd8SVivien Didelot unsigned long bridge_ageing_time; 47735750b0bSNikolay Aleksandrov u32 root_path_cost; 4781da177e4SLinus Torvalds 479fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 4809cde0708SStephen Hemminger 4819cde0708SStephen Hemminger enum { 4829cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 4839cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 4849cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 4859cde0708SStephen Hemminger } stp_enabled; 4869cde0708SStephen Hemminger 487d3d065c0SNikolay Aleksandrov struct net_bridge_mcast multicast_ctx; 488d3d065c0SNikolay Aleksandrov 489eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 490d3d065c0SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 491eb1d1641SHerbert Xu 492eb1d1641SHerbert Xu u32 hash_max; 493eb1d1641SHerbert Xu 49435750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 495eb1d1641SHerbert Xu 49619e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 497085b53c8SNikolay Aleksandrov struct rhashtable sg_port_tbl; 49819e3a9c9SNikolay Aleksandrov 499e12cec65SNikolay Aleksandrov struct hlist_head mcast_gc_list; 50019e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 501eb1d1641SHerbert Xu 502e12cec65SNikolay Aleksandrov struct work_struct mcast_gc_work; 503eb1d1641SHerbert Xu #endif 504eb1d1641SHerbert Xu 5051da177e4SLinus Torvalds struct timer_list hello_timer; 5061da177e4SLinus Torvalds struct timer_list tcn_timer; 5071da177e4SLinus Torvalds struct timer_list topology_change_timer; 508f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 50943b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 510e028e4b8SVlad Yasevich u32 auto_cnt; 5116bc506b4SIdo Schimmel 5126bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 5136bc506b4SIdo Schimmel int offload_fwd_mark; 5146bc506b4SIdo Schimmel #endif 515eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 5164b8d7d4cSHoratiu Vultur 5174b8d7d4cSHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 5180169b820SHoratiu Vultur struct hlist_head mrp_list; 5194b8d7d4cSHoratiu Vultur #endif 520f323aa54SHenrik Bjoernlund #if IS_ENABLED(CONFIG_BRIDGE_CFM) 521f323aa54SHenrik Bjoernlund struct hlist_head mep_list; 522f323aa54SHenrik Bjoernlund #endif 5231da177e4SLinus Torvalds }; 5241da177e4SLinus Torvalds 52568b7c895SHerbert Xu struct br_input_skb_cb { 52668b7c895SHerbert Xu struct net_device *brdev; 52793fdd47eSHerbert Xu 5283c171f49SPablo Neira Ayuso u16 frag_max_size; 52932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 530f12064d1SFlorian Westphal u8 igmp; 531f12064d1SFlorian Westphal u8 mrouters_only:1; 53232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 533f12064d1SFlorian Westphal u8 proxyarp_replied:1; 534f12064d1SFlorian Westphal u8 src_port_isolated:1; 53520adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 536f12064d1SFlorian Westphal u8 vlan_filtered:1; 53720adfa1aSVlad Yasevich #endif 538223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 539223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 540223fd0adSFlorian Westphal #endif 5416bc506b4SIdo Schimmel 5426bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 5436bc506b4SIdo Schimmel int offload_fwd_mark; 5446bc506b4SIdo Schimmel #endif 54568b7c895SHerbert Xu }; 54668b7c895SHerbert Xu 54768b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 54868b7c895SHerbert Xu 54932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 55032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 55132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 55232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 55332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 55432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 55528a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 55628a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 55728a16c97Sstephen hemminger 55828a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 55928a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 56028a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 56128a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 56228a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 56328a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 56428a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 56528a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 56628a16c97Sstephen hemminger 56728a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 56828a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 56928a16c97Sstephen hemminger 5701da177e4SLinus Torvalds /* called under bridge lock */ 5711da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 5721da177e4SLinus Torvalds { 5731da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 5741da177e4SLinus Torvalds } 5751da177e4SLinus Torvalds 5762594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 5772594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 5782594e906SNikolay Aleksandrov { 5792594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 5802594e906SNikolay Aleksandrov } 5812594e906SNikolay Aleksandrov 5822594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 5832594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 5842594e906SNikolay Aleksandrov { 5852594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 5862594e906SNikolay Aleksandrov } 5872594e906SNikolay Aleksandrov 5886be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 5892594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 5902594e906SNikolay Aleksandrov { 5912594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 5922594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 5932594e906SNikolay Aleksandrov return true; 5942594e906SNikolay Aleksandrov else 5952594e906SNikolay Aleksandrov return false; 5962594e906SNikolay Aleksandrov } 5972594e906SNikolay Aleksandrov 5982594e906SNikolay Aleksandrov return true; 5992594e906SNikolay Aleksandrov } 6002594e906SNikolay Aleksandrov 6015d1fcaf3SNikolay Aleksandrov static inline bool nbp_state_should_learn(const struct net_bridge_port *p) 6025d1fcaf3SNikolay Aleksandrov { 6035d1fcaf3SNikolay Aleksandrov return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; 6045d1fcaf3SNikolay Aleksandrov } 6055d1fcaf3SNikolay Aleksandrov 6068f4cc940SNikolay Aleksandrov static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack) 6075a46facbSNikolay Aleksandrov { 6088f4cc940SNikolay Aleksandrov bool ret = vid > 0 && vid < VLAN_VID_MASK; 6098f4cc940SNikolay Aleksandrov 6108f4cc940SNikolay Aleksandrov if (!ret) 6118f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid"); 6128f4cc940SNikolay Aleksandrov 6138f4cc940SNikolay Aleksandrov return ret; 6145a46facbSNikolay Aleksandrov } 6155a46facbSNikolay Aleksandrov 6165a46facbSNikolay Aleksandrov static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, 6178f4cc940SNikolay Aleksandrov const struct bridge_vlan_info *last, 6188f4cc940SNikolay Aleksandrov struct netlink_ext_ack *extack) 6195a46facbSNikolay Aleksandrov { 6205a46facbSNikolay Aleksandrov /* pvid flag is not allowed in ranges */ 6218f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_PVID) { 6228f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range"); 6235a46facbSNikolay Aleksandrov return false; 6248f4cc940SNikolay Aleksandrov } 6255a46facbSNikolay Aleksandrov 6265a46facbSNikolay Aleksandrov /* when cur is the range end, check if: 6275a46facbSNikolay Aleksandrov * - it has range start flag 6285a46facbSNikolay Aleksandrov * - range ids are invalid (end is equal to or before start) 6295a46facbSNikolay Aleksandrov */ 6305a46facbSNikolay Aleksandrov if (last) { 6318f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { 6328f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one"); 6335a46facbSNikolay Aleksandrov return false; 6348f4cc940SNikolay Aleksandrov } else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) { 6358f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing"); 6368f4cc940SNikolay Aleksandrov return false; 6378f4cc940SNikolay Aleksandrov } else if (cur->vid <= last->vid) { 6388f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); 6398f4cc940SNikolay Aleksandrov return false; 6408f4cc940SNikolay Aleksandrov } 6418f4cc940SNikolay Aleksandrov } 6428f4cc940SNikolay Aleksandrov 6438f4cc940SNikolay Aleksandrov /* check for required range flags */ 6448f4cc940SNikolay Aleksandrov if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 6458f4cc940SNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END))) { 6468f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing"); 6475a46facbSNikolay Aleksandrov return false; 6485a46facbSNikolay Aleksandrov } 6495a46facbSNikolay Aleksandrov 6505a46facbSNikolay Aleksandrov return true; 6515a46facbSNikolay Aleksandrov } 6525a46facbSNikolay Aleksandrov 653f545923bSNikolay Aleksandrov static inline int br_afspec_cmd_to_rtm(int cmd) 654f545923bSNikolay Aleksandrov { 655f545923bSNikolay Aleksandrov switch (cmd) { 656f545923bSNikolay Aleksandrov case RTM_SETLINK: 657f545923bSNikolay Aleksandrov return RTM_NEWVLAN; 658f545923bSNikolay Aleksandrov case RTM_DELLINK: 659f545923bSNikolay Aleksandrov return RTM_DELVLAN; 660f545923bSNikolay Aleksandrov } 661f545923bSNikolay Aleksandrov 662f545923bSNikolay Aleksandrov return 0; 663f545923bSNikolay Aleksandrov } 664f545923bSNikolay Aleksandrov 665ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 666ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 667ae75767eSNikolay Aleksandrov { 668ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 669ae75767eSNikolay Aleksandrov } 670ae75767eSNikolay Aleksandrov 671a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 672a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 673a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 674a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 675a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 676a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 677a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 678a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 679ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 680ae75767eSNikolay Aleksandrov 6811da177e4SLinus Torvalds /* br_device.c */ 682348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 683348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 684348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 685cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 68691d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 68791d2c34aSHerbert Xu struct sk_buff *skb) 68891d2c34aSHerbert Xu { 689f78ed220SEric Dumazet netpoll_send_skb(p->np, skb); 69091d2c34aSHerbert Xu } 69191d2c34aSHerbert Xu 692a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 693348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 69491d2c34aSHerbert Xu #else 6959f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 69691d2c34aSHerbert Xu struct sk_buff *skb) 69791d2c34aSHerbert Xu { 69891d2c34aSHerbert Xu } 69991d2c34aSHerbert Xu 700a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 70191d2c34aSHerbert Xu { 70291d2c34aSHerbert Xu return 0; 70391d2c34aSHerbert Xu } 70491d2c34aSHerbert Xu 70591d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 70691d2c34aSHerbert Xu { 70791d2c34aSHerbert Xu } 708cfb478daSstephen hemminger #endif 7091da177e4SLinus Torvalds 7101da177e4SLinus Torvalds /* br_fdb.c */ 711348662a1SJoe Perches int br_fdb_init(void); 712348662a1SJoe Perches void br_fdb_fini(void); 713eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 714eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 715348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 716424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 717424bb9c9SToshiaki Makita const struct net_bridge_port *p, 718424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 719348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 720348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 721f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 722348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 7231ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 724bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 725bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 726bfd0aeacSNikolay Aleksandrov __u16 vid); 727348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 728348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 729348662a1SJoe Perches unsigned long off); 730348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 731348662a1SJoe Perches const unsigned char *addr, u16 vid); 732348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 733be0c5677SNikolay Aleksandrov const unsigned char *addr, u16 vid, unsigned long flags); 73477162022SJohn Fastabend 735348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 736f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 737348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 73887b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 73987b0984eSPetr Machata struct netlink_ext_ack *extack); 740348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 741d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 74247674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 74347674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 74447674562SRoopa Prabhu struct netlink_ext_ack *extack); 7458db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 7468db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 7473aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 748161d82deSPetr Machata const unsigned char *addr, u16 vid, 749161d82deSPetr Machata bool swdev_notify); 7503aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 751161d82deSPetr Machata const unsigned char *addr, u16 vid, 752161d82deSPetr Machata bool swdev_notify); 7539fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 754e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 7551da177e4SLinus Torvalds 7561da177e4SLinus Torvalds /* br_forward.c */ 7578addd5e7SNikolay Aleksandrov enum br_pkt_type { 7588addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 7598addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 7608addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 7618addd5e7SNikolay Aleksandrov }; 7620c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 763b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 76437b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 7650c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 76637b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 7678addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 7681da177e4SLinus Torvalds 7697d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 7707d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 7717d850abdSNikolay Aleksandrov const struct sk_buff *skb) 7727d850abdSNikolay Aleksandrov { 7737d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 7747d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 7757d850abdSNikolay Aleksandrov } 7767d850abdSNikolay Aleksandrov 7771da177e4SLinus Torvalds /* br_if.c */ 778faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 779348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 780348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 781ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 782ca752be0SDavid Ahern struct netlink_ext_ack *extack); 783348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 784804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 785348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 786c8f44affSMichał Mirosław netdev_features_t features); 787e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 7882796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 7892756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 7901da177e4SLinus Torvalds 7911da177e4SLinus Torvalds /* br_input.c */ 7920c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 7939eb8eff0SVladimir Oltean rx_handler_func_t *br_get_rx_handler(const struct net_device *dev); 7941da177e4SLinus Torvalds 79590c628ddSHenrik Bjoernlund struct br_frame_type { 79690c628ddSHenrik Bjoernlund __be16 type; 79790c628ddSHenrik Bjoernlund int (*frame_handler)(struct net_bridge_port *port, 79890c628ddSHenrik Bjoernlund struct sk_buff *skb); 79990c628ddSHenrik Bjoernlund struct hlist_node list; 80090c628ddSHenrik Bjoernlund }; 80190c628ddSHenrik Bjoernlund 80290c628ddSHenrik Bjoernlund void br_add_frame(struct net_bridge *br, struct br_frame_type *ft); 80390c628ddSHenrik Bjoernlund void br_del_frame(struct net_bridge *br, struct br_frame_type *ft); 80490c628ddSHenrik Bjoernlund 805859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 806859828c0SJiri Pirko { 8079eb8eff0SVladimir Oltean return rcu_dereference(dev->rx_handler) == br_get_rx_handler(dev); 808859828c0SJiri Pirko } 809859828c0SJiri Pirko 8104d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 8114d4fd361SPetr Machata { 8129eb8eff0SVladimir Oltean return rcu_dereference_rtnl(dev->rx_handler) == br_get_rx_handler(dev); 8134d4fd361SPetr Machata } 8144d4fd361SPetr Machata 815859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 816859828c0SJiri Pirko { 817859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 818859828c0SJiri Pirko } 819859828c0SJiri Pirko 8204d4fd361SPetr Machata static inline struct net_bridge_port * 8214d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 8224d4fd361SPetr Machata { 8234d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 8244d4fd361SPetr Machata } 8254d4fd361SPetr Machata 8261da177e4SLinus Torvalds /* br_ioctl.c */ 827348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 828348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 829348662a1SJoe Perches void __user *arg); 8301da177e4SLinus Torvalds 831eb1d1641SHerbert Xu /* br_multicast.c */ 832eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 833f4b7002aSNikolay Aleksandrov int br_multicast_rcv(struct net_bridge_mcast **brmctx, 834f4b7002aSNikolay Aleksandrov struct net_bridge_mcast_port **pmctx, 835f4b7002aSNikolay Aleksandrov struct net_bridge_vlan *vlan, 836fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 837adc47037SNikolay Aleksandrov struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge_mcast *brmctx, 838eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 8391080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 840348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 841348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 842348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 843348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 844851d0a73SJoseph Huang void br_multicast_join_snoopers(struct net_bridge *br); 845851d0a73SJoseph Huang void br_multicast_leave_snoopers(struct net_bridge *br); 846348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 847348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 848e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 849adc47037SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, struct sk_buff *skb, 850adc47037SNikolay Aleksandrov struct net_bridge_mcast *brmctx, 851adc47037SNikolay Aleksandrov bool local_rcv, bool local_orig); 852348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 853348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 854ae1ea84bSFlorian Fainelli int br_multicast_toggle(struct net_bridge *br, unsigned long val, 855ae1ea84bSFlorian Fainelli struct netlink_ext_ack *extack); 856348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 857348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 8585e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 859aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 860aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 861aa2ae3e7SNikolay Aleksandrov #endif 862348662a1SJoe Perches struct net_bridge_mdb_entry * 86319e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 864348662a1SJoe Perches struct net_bridge_mdb_entry * 86519e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 866348662a1SJoe Perches struct net_bridge_port_group * 867348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 868762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 8698b671779SNikolay Aleksandrov unsigned char flags, const unsigned char *src, 8708f8cb77eSNikolay Aleksandrov u8 filter_mode, u8 rt_protocol); 87119e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 87219e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 87381f19838SNikolay Aleksandrov void br_mdb_notify(struct net_device *dev, struct net_bridge_mdb_entry *mp, 87481f19838SNikolay Aleksandrov struct net_bridge_port_group *pg, int type); 8751e9ca456SNikolay Aleksandrov void br_rtr_notify(struct net_device *dev, struct net_bridge_mcast_port *pmctx, 876949f1e39SSatish Ashok int type); 877681590bdSNikolay Aleksandrov void br_multicast_del_pg(struct net_bridge_mdb_entry *mp, 878681590bdSNikolay Aleksandrov struct net_bridge_port_group *pg, 879681590bdSNikolay Aleksandrov struct net_bridge_port_group __rcu **pp); 880adc47037SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, 881adc47037SNikolay Aleksandrov const struct net_bridge_port *p, 882a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 8831080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 884b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 8851080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 8861080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 8871080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 88819e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 88919e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 890*58d913a3SNikolay Aleksandrov void br_multicast_host_join(const struct net_bridge_mcast *brmctx, 891*58d913a3SNikolay Aleksandrov struct net_bridge_mdb_entry *mp, bool notify); 8921bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 8938266a049SNikolay Aleksandrov void br_multicast_star_g_handle_mode(struct net_bridge_port_group *pg, 8948266a049SNikolay Aleksandrov u8 filter_mode); 8958266a049SNikolay Aleksandrov void br_multicast_sg_add_exclude_ports(struct net_bridge_mdb_entry *star_mp, 8968266a049SNikolay Aleksandrov struct net_bridge_port_group *sg); 897474ddb37SNikolay Aleksandrov struct net_bridge_group_src * 898474ddb37SNikolay Aleksandrov br_multicast_find_group_src(struct net_bridge_port_group *pg, struct br_ip *ip); 899d5a10222SNikolay Aleksandrov void br_multicast_del_group_src(struct net_bridge_group_src *src, 900d5a10222SNikolay Aleksandrov bool fastleave); 901613d61dbSNikolay Aleksandrov void br_multicast_ctx_init(struct net_bridge *br, 902613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 903613d61dbSNikolay Aleksandrov struct net_bridge_mcast *brmctx); 904613d61dbSNikolay Aleksandrov void br_multicast_ctx_deinit(struct net_bridge_mcast *brmctx); 905613d61dbSNikolay Aleksandrov void br_multicast_port_ctx_init(struct net_bridge_port *port, 906613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 907613d61dbSNikolay Aleksandrov struct net_bridge_mcast_port *pmctx); 908613d61dbSNikolay Aleksandrov void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port *pmctx); 9097b54aaafSNikolay Aleksandrov void br_multicast_toggle_one_vlan(struct net_bridge_vlan *vlan, bool on); 910f4b7002aSNikolay Aleksandrov void br_multicast_toggle_vlan(struct net_bridge_vlan *vlan, bool on); 911f4b7002aSNikolay Aleksandrov int br_multicast_toggle_vlan_snooping(struct net_bridge *br, bool on, 912f4b7002aSNikolay Aleksandrov struct netlink_ext_ack *extack); 9139dee572cSNikolay Aleksandrov bool br_multicast_toggle_global_vlan(struct net_bridge_vlan *vlan, bool on); 91485b35269SSridhar Samudrala 915955062b0SNikolay Aleksandrov static inline bool br_group_is_l2(const struct br_ip *group) 916955062b0SNikolay Aleksandrov { 917955062b0SNikolay Aleksandrov return group->proto == 0; 918955062b0SNikolay Aleksandrov } 919955062b0SNikolay Aleksandrov 920cfd56754SCong Wang #define mlock_dereference(X, br) \ 921cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 922cfd56754SCong Wang 92344ebb081SLinus Lüssing static inline struct hlist_node * 924adc47037SNikolay Aleksandrov br_multicast_get_first_rport_node(struct net_bridge_mcast *brmctx, 925adc47037SNikolay Aleksandrov struct sk_buff *skb) 926d3d065c0SNikolay Aleksandrov { 927a3c02e76SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 928a3c02e76SLinus Lüssing if (skb->protocol == htons(ETH_P_IPV6)) 929d3d065c0SNikolay Aleksandrov return rcu_dereference(hlist_first_rcu(&brmctx->ip6_mc_router_list)); 930a3c02e76SLinus Lüssing #endif 931d3d065c0SNikolay Aleksandrov return rcu_dereference(hlist_first_rcu(&brmctx->ip4_mc_router_list)); 93244ebb081SLinus Lüssing } 93344ebb081SLinus Lüssing 93444ebb081SLinus Lüssing static inline struct net_bridge_port * 935d3d065c0SNikolay Aleksandrov br_multicast_rport_from_node_skb(struct hlist_node *rp, struct sk_buff *skb) 936d3d065c0SNikolay Aleksandrov { 9379632233eSNikolay Aleksandrov struct net_bridge_mcast_port *mctx; 9389632233eSNikolay Aleksandrov 939a3c02e76SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 940a3c02e76SLinus Lüssing if (skb->protocol == htons(ETH_P_IPV6)) 9419632233eSNikolay Aleksandrov mctx = hlist_entry_safe(rp, struct net_bridge_mcast_port, 9429632233eSNikolay Aleksandrov ip6_rlist); 9439632233eSNikolay Aleksandrov else 944a3c02e76SLinus Lüssing #endif 9459632233eSNikolay Aleksandrov mctx = hlist_entry_safe(rp, struct net_bridge_mcast_port, 9469632233eSNikolay Aleksandrov ip4_rlist); 9479632233eSNikolay Aleksandrov 9489632233eSNikolay Aleksandrov if (mctx) 9499632233eSNikolay Aleksandrov return mctx->port; 9509632233eSNikolay Aleksandrov else 9519632233eSNikolay Aleksandrov return NULL; 95244ebb081SLinus Lüssing } 95344ebb081SLinus Lüssing 954d3d065c0SNikolay Aleksandrov static inline bool br_ip4_multicast_is_router(struct net_bridge_mcast *brmctx) 95585b35269SSridhar Samudrala { 956d3d065c0SNikolay Aleksandrov return timer_pending(&brmctx->ip4_mc_router_timer); 9571a3065a2SLinus Lüssing } 9581a3065a2SLinus Lüssing 959d3d065c0SNikolay Aleksandrov static inline bool br_ip6_multicast_is_router(struct net_bridge_mcast *brmctx) 9601a3065a2SLinus Lüssing { 9611a3065a2SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 962d3d065c0SNikolay Aleksandrov return timer_pending(&brmctx->ip6_mc_router_timer); 9631a3065a2SLinus Lüssing #else 9641a3065a2SLinus Lüssing return false; 9651a3065a2SLinus Lüssing #endif 9661a3065a2SLinus Lüssing } 9671a3065a2SLinus Lüssing 9681a3065a2SLinus Lüssing static inline bool 969adc47037SNikolay Aleksandrov br_multicast_is_router(struct net_bridge_mcast *brmctx, struct sk_buff *skb) 9701a3065a2SLinus Lüssing { 971d3d065c0SNikolay Aleksandrov switch (brmctx->multicast_router) { 9721a3065a2SLinus Lüssing case MDB_RTR_TYPE_PERM: 9731a3065a2SLinus Lüssing return true; 9741a3065a2SLinus Lüssing case MDB_RTR_TYPE_TEMP_QUERY: 9751a3065a2SLinus Lüssing if (skb) { 9761a3065a2SLinus Lüssing if (skb->protocol == htons(ETH_P_IP)) 977d3d065c0SNikolay Aleksandrov return br_ip4_multicast_is_router(brmctx); 9781a3065a2SLinus Lüssing else if (skb->protocol == htons(ETH_P_IPV6)) 979d3d065c0SNikolay Aleksandrov return br_ip6_multicast_is_router(brmctx); 9801a3065a2SLinus Lüssing } else { 981d3d065c0SNikolay Aleksandrov return br_ip4_multicast_is_router(brmctx) || 982d3d065c0SNikolay Aleksandrov br_ip6_multicast_is_router(brmctx); 9831a3065a2SLinus Lüssing } 9841a3065a2SLinus Lüssing fallthrough; 9851a3065a2SLinus Lüssing default: 9861a3065a2SLinus Lüssing return false; 9871a3065a2SLinus Lüssing } 98885b35269SSridhar Samudrala } 989b00589afSLinus Lüssing 990cc0fdd80SLinus Lüssing static inline bool 991adc47037SNikolay Aleksandrov __br_multicast_querier_exists(struct net_bridge_mcast *brmctx, 9920888d5f3Sdaniel struct bridge_mcast_other_query *querier, 9930888d5f3Sdaniel const bool is_ipv6) 994b00589afSLinus Lüssing { 9950888d5f3Sdaniel bool own_querier_enabled; 9960888d5f3Sdaniel 997adc47037SNikolay Aleksandrov if (br_opt_get(brmctx->br, BROPT_MULTICAST_QUERIER)) { 998adc47037SNikolay Aleksandrov if (is_ipv6 && !br_opt_get(brmctx->br, BROPT_HAS_IPV6_ADDR)) 9990888d5f3Sdaniel own_querier_enabled = false; 10000888d5f3Sdaniel else 10010888d5f3Sdaniel own_querier_enabled = true; 10020888d5f3Sdaniel } else { 10030888d5f3Sdaniel own_querier_enabled = false; 10040888d5f3Sdaniel } 10050888d5f3Sdaniel 1006cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 10070888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 1008cc0fdd80SLinus Lüssing } 1009cc0fdd80SLinus Lüssing 1010adc47037SNikolay Aleksandrov static inline bool br_multicast_querier_exists(struct net_bridge_mcast *brmctx, 1011955062b0SNikolay Aleksandrov struct ethhdr *eth, 1012955062b0SNikolay Aleksandrov const struct net_bridge_mdb_entry *mdb) 1013cc0fdd80SLinus Lüssing { 1014cc0fdd80SLinus Lüssing switch (eth->h_proto) { 1015cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 1016adc47037SNikolay Aleksandrov return __br_multicast_querier_exists(brmctx, 1017adc47037SNikolay Aleksandrov &brmctx->ip4_other_query, false); 1018cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 1019cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 1020adc47037SNikolay Aleksandrov return __br_multicast_querier_exists(brmctx, 1021adc47037SNikolay Aleksandrov &brmctx->ip6_other_query, true); 1022cc0fdd80SLinus Lüssing #endif 1023cc0fdd80SLinus Lüssing default: 1024955062b0SNikolay Aleksandrov return !!mdb && br_group_is_l2(&mdb->addr); 1025cc0fdd80SLinus Lüssing } 1026b00589afSLinus Lüssing } 10271080ab95SNikolay Aleksandrov 102888d4bd18SNikolay Aleksandrov static inline bool br_multicast_is_star_g(const struct br_ip *ip) 102988d4bd18SNikolay Aleksandrov { 103088d4bd18SNikolay Aleksandrov switch (ip->proto) { 103188d4bd18SNikolay Aleksandrov case htons(ETH_P_IP): 103288d4bd18SNikolay Aleksandrov return ipv4_is_zeronet(ip->src.ip4); 103388d4bd18SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 103488d4bd18SNikolay Aleksandrov case htons(ETH_P_IPV6): 103588d4bd18SNikolay Aleksandrov return ipv6_addr_any(&ip->src.ip6); 103688d4bd18SNikolay Aleksandrov #endif 103788d4bd18SNikolay Aleksandrov default: 103888d4bd18SNikolay Aleksandrov return false; 103988d4bd18SNikolay Aleksandrov } 104088d4bd18SNikolay Aleksandrov } 104188d4bd18SNikolay Aleksandrov 1042adc47037SNikolay Aleksandrov static inline bool 1043adc47037SNikolay Aleksandrov br_multicast_should_handle_mode(const struct net_bridge_mcast *brmctx, 10448266a049SNikolay Aleksandrov __be16 proto) 10458266a049SNikolay Aleksandrov { 10468266a049SNikolay Aleksandrov switch (proto) { 10478266a049SNikolay Aleksandrov case htons(ETH_P_IP): 1048adc47037SNikolay Aleksandrov return !!(brmctx->multicast_igmp_version == 3); 10498266a049SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 10508266a049SNikolay Aleksandrov case htons(ETH_P_IPV6): 1051adc47037SNikolay Aleksandrov return !!(brmctx->multicast_mld_version == 2); 10528266a049SNikolay Aleksandrov #endif 10538266a049SNikolay Aleksandrov default: 10548266a049SNikolay Aleksandrov return false; 10558266a049SNikolay Aleksandrov } 10568266a049SNikolay Aleksandrov } 10578266a049SNikolay Aleksandrov 10581080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 10591080ab95SNikolay Aleksandrov { 10601080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 10611080ab95SNikolay Aleksandrov } 106242c11ccfSNikolay Aleksandrov 1063adc47037SNikolay Aleksandrov static inline unsigned long br_multicast_lmqt(const struct net_bridge_mcast *brmctx) 106442c11ccfSNikolay Aleksandrov { 1065adc47037SNikolay Aleksandrov return brmctx->multicast_last_member_interval * 1066adc47037SNikolay Aleksandrov brmctx->multicast_last_member_count; 106742c11ccfSNikolay Aleksandrov } 10680436862eSNikolay Aleksandrov 1069adc47037SNikolay Aleksandrov static inline unsigned long br_multicast_gmi(const struct net_bridge_mcast *brmctx) 10700436862eSNikolay Aleksandrov { 10710436862eSNikolay Aleksandrov /* use the RFC default of 2 for QRV */ 1072adc47037SNikolay Aleksandrov return 2 * brmctx->multicast_query_interval + 1073adc47037SNikolay Aleksandrov brmctx->multicast_query_response_interval; 10740436862eSNikolay Aleksandrov } 10757b54aaafSNikolay Aleksandrov 10767b54aaafSNikolay Aleksandrov static inline bool 10777b54aaafSNikolay Aleksandrov br_multicast_ctx_is_vlan(const struct net_bridge_mcast *brmctx) 10787b54aaafSNikolay Aleksandrov { 10797b54aaafSNikolay Aleksandrov return !!brmctx->vlan; 10807b54aaafSNikolay Aleksandrov } 10817b54aaafSNikolay Aleksandrov 10827b54aaafSNikolay Aleksandrov static inline bool 10837b54aaafSNikolay Aleksandrov br_multicast_port_ctx_is_vlan(const struct net_bridge_mcast_port *pmctx) 10847b54aaafSNikolay Aleksandrov { 10857b54aaafSNikolay Aleksandrov return !!pmctx->vlan; 10867b54aaafSNikolay Aleksandrov } 10877b54aaafSNikolay Aleksandrov 10887b54aaafSNikolay Aleksandrov static inline struct net_bridge_mcast * 10897b54aaafSNikolay Aleksandrov br_multicast_port_ctx_get_global(const struct net_bridge_mcast_port *pmctx) 10907b54aaafSNikolay Aleksandrov { 10917b54aaafSNikolay Aleksandrov if (!br_multicast_port_ctx_is_vlan(pmctx)) 10927b54aaafSNikolay Aleksandrov return &pmctx->port->br->multicast_ctx; 10937b54aaafSNikolay Aleksandrov else 10947b54aaafSNikolay Aleksandrov return &pmctx->vlan->brvlan->br_mcast_ctx; 10957b54aaafSNikolay Aleksandrov } 10967b54aaafSNikolay Aleksandrov 10977b54aaafSNikolay Aleksandrov static inline bool 10987b54aaafSNikolay Aleksandrov br_multicast_ctx_vlan_global_disabled(const struct net_bridge_mcast *brmctx) 10997b54aaafSNikolay Aleksandrov { 1100f4b7002aSNikolay Aleksandrov return br_opt_get(brmctx->br, BROPT_MCAST_VLAN_SNOOPING_ENABLED) && 1101f4b7002aSNikolay Aleksandrov br_multicast_ctx_is_vlan(brmctx) && 11027b54aaafSNikolay Aleksandrov !(brmctx->vlan->priv_flags & BR_VLFLAG_GLOBAL_MCAST_ENABLED); 11037b54aaafSNikolay Aleksandrov } 11047b54aaafSNikolay Aleksandrov 11057b54aaafSNikolay Aleksandrov static inline bool 11067b54aaafSNikolay Aleksandrov br_multicast_ctx_vlan_disabled(const struct net_bridge_mcast *brmctx) 11077b54aaafSNikolay Aleksandrov { 11087b54aaafSNikolay Aleksandrov return br_multicast_ctx_is_vlan(brmctx) && 11097b54aaafSNikolay Aleksandrov !(brmctx->vlan->priv_flags & BR_VLFLAG_MCAST_ENABLED); 11107b54aaafSNikolay Aleksandrov } 11117b54aaafSNikolay Aleksandrov 11127b54aaafSNikolay Aleksandrov static inline bool 11137b54aaafSNikolay Aleksandrov br_multicast_port_ctx_vlan_disabled(const struct net_bridge_mcast_port *pmctx) 11147b54aaafSNikolay Aleksandrov { 11157b54aaafSNikolay Aleksandrov return br_multicast_port_ctx_is_vlan(pmctx) && 11167b54aaafSNikolay Aleksandrov !(pmctx->vlan->priv_flags & BR_VLFLAG_MCAST_ENABLED); 11177b54aaafSNikolay Aleksandrov } 11184cdd0d10SNikolay Aleksandrov 11194cdd0d10SNikolay Aleksandrov static inline bool 11204cdd0d10SNikolay Aleksandrov br_multicast_port_ctx_state_disabled(const struct net_bridge_mcast_port *pmctx) 11214cdd0d10SNikolay Aleksandrov { 11224cdd0d10SNikolay Aleksandrov return pmctx->port->state == BR_STATE_DISABLED || 11234cdd0d10SNikolay Aleksandrov (br_multicast_port_ctx_is_vlan(pmctx) && 11244cdd0d10SNikolay Aleksandrov (br_multicast_port_ctx_vlan_disabled(pmctx) || 11254cdd0d10SNikolay Aleksandrov pmctx->vlan->state == BR_STATE_DISABLED)); 11264cdd0d10SNikolay Aleksandrov } 11274cdd0d10SNikolay Aleksandrov 11284cdd0d10SNikolay Aleksandrov static inline bool 11294cdd0d10SNikolay Aleksandrov br_multicast_port_ctx_state_stopped(const struct net_bridge_mcast_port *pmctx) 11304cdd0d10SNikolay Aleksandrov { 11314cdd0d10SNikolay Aleksandrov return br_multicast_port_ctx_state_disabled(pmctx) || 11324cdd0d10SNikolay Aleksandrov pmctx->port->state == BR_STATE_BLOCKING || 11334cdd0d10SNikolay Aleksandrov (br_multicast_port_ctx_is_vlan(pmctx) && 11344cdd0d10SNikolay Aleksandrov pmctx->vlan->state == BR_STATE_BLOCKING); 11354cdd0d10SNikolay Aleksandrov } 1136eb1d1641SHerbert Xu #else 1137f4b7002aSNikolay Aleksandrov static inline int br_multicast_rcv(struct net_bridge_mcast **brmctx, 1138f4b7002aSNikolay Aleksandrov struct net_bridge_mcast_port **pmctx, 1139f4b7002aSNikolay Aleksandrov struct net_bridge_vlan *vlan, 114006499098SVlad Yasevich struct sk_buff *skb, 114106499098SVlad Yasevich u16 vid) 1142eb1d1641SHerbert Xu { 1143eb1d1641SHerbert Xu return 0; 1144eb1d1641SHerbert Xu } 1145eb1d1641SHerbert Xu 1146adc47037SNikolay Aleksandrov static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge_mcast *brmctx, 1147fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 1148eb1d1641SHerbert Xu { 1149eb1d1641SHerbert Xu return NULL; 1150eb1d1641SHerbert Xu } 1151eb1d1641SHerbert Xu 11521080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 1153eb1d1641SHerbert Xu { 11541080ab95SNikolay Aleksandrov return 0; 1155eb1d1641SHerbert Xu } 1156eb1d1641SHerbert Xu 1157eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 1158eb1d1641SHerbert Xu { 1159eb1d1641SHerbert Xu } 1160eb1d1641SHerbert Xu 1161eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 1162eb1d1641SHerbert Xu { 1163eb1d1641SHerbert Xu } 1164eb1d1641SHerbert Xu 1165eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 1166eb1d1641SHerbert Xu { 1167eb1d1641SHerbert Xu } 1168eb1d1641SHerbert Xu 1169eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 1170eb1d1641SHerbert Xu { 1171eb1d1641SHerbert Xu } 1172eb1d1641SHerbert Xu 1173851d0a73SJoseph Huang static inline void br_multicast_join_snoopers(struct net_bridge *br) 1174851d0a73SJoseph Huang { 1175851d0a73SJoseph Huang } 1176851d0a73SJoseph Huang 1177851d0a73SJoseph Huang static inline void br_multicast_leave_snoopers(struct net_bridge *br) 1178851d0a73SJoseph Huang { 1179851d0a73SJoseph Huang } 1180851d0a73SJoseph Huang 1181eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 1182eb1d1641SHerbert Xu { 1183eb1d1641SHerbert Xu } 1184eb1d1641SHerbert Xu 1185eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 1186eb1d1641SHerbert Xu { 1187eb1d1641SHerbert Xu } 11885cb5e947SHerbert Xu 1189a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 1190a7ce45a7SNikolay Aleksandrov { 1191a7ce45a7SNikolay Aleksandrov } 1192a7ce45a7SNikolay Aleksandrov 119337b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 119437b090e6SNikolay Aleksandrov struct sk_buff *skb, 1195adc47037SNikolay Aleksandrov struct net_bridge_mcast *brmctx, 119637b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 11975cb5e947SHerbert Xu { 11985cb5e947SHerbert Xu } 11995cb5e947SHerbert Xu 1200adc47037SNikolay Aleksandrov static inline bool br_multicast_is_router(struct net_bridge_mcast *brmctx, 1201bbc6f2ccSNikolay Aleksandrov struct sk_buff *skb) 1202eb1d1641SHerbert Xu { 120303aaa9e2SGustavo A. R. Silva return false; 1204eb1d1641SHerbert Xu } 120537b090e6SNikolay Aleksandrov 1206adc47037SNikolay Aleksandrov static inline bool br_multicast_querier_exists(struct net_bridge_mcast *brmctx, 1207c43fd36fSVladimir Oltean struct ethhdr *eth, 1208c43fd36fSVladimir Oltean const struct net_bridge_mdb_entry *mdb) 1209b00589afSLinus Lüssing { 1210b00589afSLinus Lüssing return false; 1211b00589afSLinus Lüssing } 121237b090e6SNikolay Aleksandrov 1213fdb184d1SRami Rosen static inline void br_mdb_init(void) 1214fdb184d1SRami Rosen { 1215fdb184d1SRami Rosen } 121637b090e6SNikolay Aleksandrov 1217fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 1218fdb184d1SRami Rosen { 1219fdb184d1SRami Rosen } 12201080ab95SNikolay Aleksandrov 122119e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 122219e3a9c9SNikolay Aleksandrov { 122319e3a9c9SNikolay Aleksandrov return 0; 122419e3a9c9SNikolay Aleksandrov } 122519e3a9c9SNikolay Aleksandrov 122619e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 122719e3a9c9SNikolay Aleksandrov { 122819e3a9c9SNikolay Aleksandrov } 122919e3a9c9SNikolay Aleksandrov 12301080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 12311080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 1232a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 1233a65056ecSNikolay Aleksandrov u8 type, u8 dir) 12341080ab95SNikolay Aleksandrov { 12351080ab95SNikolay Aleksandrov } 12361080ab95SNikolay Aleksandrov 12371080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 12381080ab95SNikolay Aleksandrov { 12391080ab95SNikolay Aleksandrov return 0; 12401080ab95SNikolay Aleksandrov } 12411080ab95SNikolay Aleksandrov 1242b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 1243b6fe0440SIdo Schimmel { 1244b6fe0440SIdo Schimmel } 1245b6fe0440SIdo Schimmel 12461080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 12471080ab95SNikolay Aleksandrov { 12481080ab95SNikolay Aleksandrov return 0; 12491080ab95SNikolay Aleksandrov } 1250613d61dbSNikolay Aleksandrov 1251613d61dbSNikolay Aleksandrov static inline void br_multicast_ctx_init(struct net_bridge *br, 1252613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 1253613d61dbSNikolay Aleksandrov struct net_bridge_mcast *brmctx) 1254613d61dbSNikolay Aleksandrov { 1255613d61dbSNikolay Aleksandrov } 1256613d61dbSNikolay Aleksandrov 1257613d61dbSNikolay Aleksandrov static inline void br_multicast_ctx_deinit(struct net_bridge_mcast *brmctx) 1258613d61dbSNikolay Aleksandrov { 1259613d61dbSNikolay Aleksandrov } 1260613d61dbSNikolay Aleksandrov 1261613d61dbSNikolay Aleksandrov static inline void br_multicast_port_ctx_init(struct net_bridge_port *port, 1262613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 1263613d61dbSNikolay Aleksandrov struct net_bridge_mcast_port *pmctx) 1264613d61dbSNikolay Aleksandrov { 1265613d61dbSNikolay Aleksandrov } 1266613d61dbSNikolay Aleksandrov 1267613d61dbSNikolay Aleksandrov static inline void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port *pmctx) 1268613d61dbSNikolay Aleksandrov { 1269613d61dbSNikolay Aleksandrov } 12707b54aaafSNikolay Aleksandrov 12717b54aaafSNikolay Aleksandrov static inline void br_multicast_toggle_one_vlan(struct net_bridge_vlan *vlan, 12727b54aaafSNikolay Aleksandrov bool on) 12737b54aaafSNikolay Aleksandrov { 12747b54aaafSNikolay Aleksandrov } 1275f4b7002aSNikolay Aleksandrov 1276f4b7002aSNikolay Aleksandrov static inline void br_multicast_toggle_vlan(struct net_bridge_vlan *vlan, 1277f4b7002aSNikolay Aleksandrov bool on) 1278f4b7002aSNikolay Aleksandrov { 1279f4b7002aSNikolay Aleksandrov } 1280f4b7002aSNikolay Aleksandrov 1281f4b7002aSNikolay Aleksandrov static inline int br_multicast_toggle_vlan_snooping(struct net_bridge *br, 1282f4b7002aSNikolay Aleksandrov bool on, 1283f4b7002aSNikolay Aleksandrov struct netlink_ext_ack *extack) 1284f4b7002aSNikolay Aleksandrov { 1285f4b7002aSNikolay Aleksandrov return -EOPNOTSUPP; 1286f4b7002aSNikolay Aleksandrov } 12879dee572cSNikolay Aleksandrov 12889dee572cSNikolay Aleksandrov static inline bool br_multicast_toggle_global_vlan(struct net_bridge_vlan *vlan, 12899dee572cSNikolay Aleksandrov bool on) 12909dee572cSNikolay Aleksandrov { 12919dee572cSNikolay Aleksandrov return false; 12929dee572cSNikolay Aleksandrov } 129385b35269SSridhar Samudrala #endif 1294eb1d1641SHerbert Xu 1295243a2e63SVlad Yasevich /* br_vlan.c */ 1296243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 129777751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 129877751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 1299f4b7002aSNikolay Aleksandrov u16 *vid, u8 *state, 1300f4b7002aSNikolay Aleksandrov struct net_bridge_vlan **vlan); 130177751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 130285f46c6bSVlad Yasevich const struct sk_buff *skb); 1303e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 1304348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 130511538d03SRoopa Prabhu const struct net_bridge_port *port, 13062594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 130778851988SVlad Yasevich struct sk_buff *skb); 1308f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1309169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1310348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 1311348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 13122594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 1313204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 13149e781401SVladimir Oltean int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val, 13159e781401SVladimir Oltean struct netlink_ext_ack *extack); 1316dcbdf135SVladimir Oltean int __br_vlan_set_proto(struct net_bridge *br, __be16 proto, 1317dcbdf135SVladimir Oltean struct netlink_ext_ack *extack); 13189e781401SVladimir Oltean int br_vlan_set_proto(struct net_bridge *br, unsigned long val, 13199e781401SVladimir Oltean struct netlink_ext_ack *extack); 13206dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 13219163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 13225be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 13239e781401SVladimir Oltean int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val, 13249e781401SVladimir Oltean struct netlink_ext_ack *extack); 1325169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 1326169327d5SPetr Machata struct netlink_ext_ack *extack); 1327f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1328169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1329348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 1330348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 1331169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 13322594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 1333a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 1334281cc284SHeiner Kallweit struct pcpu_sw_netstats *stats); 13359c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 1336091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 13379c0ec2e7SMike Manning void *ptr); 13388dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void); 13398dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void); 1340cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 1341cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1342cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1343cf5bddb9SNikolay Aleksandrov int cmd); 1344a5d29ae2SNikolay Aleksandrov bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1345a5d29ae2SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 1346a37b85c9SVlad Yasevich 1347bcf2766bSFelix Fietkau void br_vlan_fill_forward_path_pvid(struct net_bridge *br, 1348bcf2766bSFelix Fietkau struct net_device_path_ctx *ctx, 1349bcf2766bSFelix Fietkau struct net_device_path *path); 1350bcf2766bSFelix Fietkau int br_vlan_fill_forward_path_mode(struct net_bridge *br, 1351bcf2766bSFelix Fietkau struct net_bridge_port *dst, 1352bcf2766bSFelix Fietkau struct net_device_path *path); 1353bcf2766bSFelix Fietkau 13542594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 1355a37b85c9SVlad Yasevich const struct net_bridge *br) 1356a37b85c9SVlad Yasevich { 1357907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 1358a37b85c9SVlad Yasevich } 1359a37b85c9SVlad Yasevich 13602594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 1361a37b85c9SVlad Yasevich const struct net_bridge_port *p) 1362a37b85c9SVlad Yasevich { 1363907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 1364907b1e6eSNikolay Aleksandrov } 1365907b1e6eSNikolay Aleksandrov 1366907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1367907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1368907b1e6eSNikolay Aleksandrov { 1369907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 1370907b1e6eSNikolay Aleksandrov } 1371907b1e6eSNikolay Aleksandrov 1372907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1373907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1374907b1e6eSNikolay Aleksandrov { 1375907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 1376a37b85c9SVlad Yasevich } 1377a37b85c9SVlad Yasevich 1378a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 1379a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 1380a37b85c9SVlad Yasevich */ 1381a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 1382a37b85c9SVlad Yasevich { 1383a37b85c9SVlad Yasevich int err = 0; 1384a37b85c9SVlad Yasevich 13852594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 13865978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 13872594e906SNikolay Aleksandrov } else { 1388a37b85c9SVlad Yasevich *vid = 0; 1389a37b85c9SVlad Yasevich err = -EINVAL; 1390a37b85c9SVlad Yasevich } 1391a37b85c9SVlad Yasevich 1392a37b85c9SVlad Yasevich return err; 1393a37b85c9SVlad Yasevich } 139478851988SVlad Yasevich 139577751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 139678851988SVlad Yasevich { 139777751ee8SNikolay Aleksandrov if (!vg) 13985be5a2dfSVlad Yasevich return 0; 13995be5a2dfSVlad Yasevich 140078851988SVlad Yasevich smp_rmb(); 140177751ee8SNikolay Aleksandrov return vg->pvid; 140278851988SVlad Yasevich } 140378851988SVlad Yasevich 14048dcea187SNikolay Aleksandrov static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) 14058dcea187SNikolay Aleksandrov { 14068dcea187SNikolay Aleksandrov return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags; 14078dcea187SNikolay Aleksandrov } 1408243a2e63SVlad Yasevich #else 140977751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 141077751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 14112594e906SNikolay Aleksandrov struct sk_buff *skb, 1412f4b7002aSNikolay Aleksandrov u16 *vid, u8 *state, 1413f4b7002aSNikolay Aleksandrov struct net_bridge_vlan **vlan) 1414f4b7002aSNikolay Aleksandrov 14152594e906SNikolay Aleksandrov { 1416f4b7002aSNikolay Aleksandrov *vlan = NULL; 14172594e906SNikolay Aleksandrov return true; 14182594e906SNikolay Aleksandrov } 14192594e906SNikolay Aleksandrov 14202594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 142185f46c6bSVlad Yasevich const struct sk_buff *skb) 142285f46c6bSVlad Yasevich { 142385f46c6bSVlad Yasevich return true; 142485f46c6bSVlad Yasevich } 142585f46c6bSVlad Yasevich 1426e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 1427e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 1428e0d7968aSToshiaki Makita { 1429e0d7968aSToshiaki Makita return true; 1430e0d7968aSToshiaki Makita } 1431e0d7968aSToshiaki Makita 143278851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 143311538d03SRoopa Prabhu const struct net_bridge_port *port, 14342594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 143578851988SVlad Yasevich struct sk_buff *skb) 143678851988SVlad Yasevich { 143778851988SVlad Yasevich return skb; 143878851988SVlad Yasevich } 143978851988SVlad Yasevich 1440f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1441169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1442243a2e63SVlad Yasevich { 1443f418af63SNikolay Aleksandrov *changed = false; 1444243a2e63SVlad Yasevich return -EOPNOTSUPP; 1445243a2e63SVlad Yasevich } 1446243a2e63SVlad Yasevich 1447243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 1448243a2e63SVlad Yasevich { 1449243a2e63SVlad Yasevich return -EOPNOTSUPP; 1450243a2e63SVlad Yasevich } 1451243a2e63SVlad Yasevich 1452243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1453243a2e63SVlad Yasevich { 1454243a2e63SVlad Yasevich } 1455243a2e63SVlad Yasevich 1456204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1457204177f3SToshiaki Makita { 1458204177f3SToshiaki Makita } 1459204177f3SToshiaki Makita 14605be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 14618580e211SToshiaki Makita { 14625be5a2dfSVlad Yasevich return 0; 14638580e211SToshiaki Makita } 14648580e211SToshiaki Makita 1465f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1466169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1467243a2e63SVlad Yasevich { 1468f418af63SNikolay Aleksandrov *changed = false; 1469243a2e63SVlad Yasevich return -EOPNOTSUPP; 1470243a2e63SVlad Yasevich } 1471243a2e63SVlad Yasevich 1472243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1473243a2e63SVlad Yasevich { 1474243a2e63SVlad Yasevich return -EOPNOTSUPP; 1475243a2e63SVlad Yasevich } 1476243a2e63SVlad Yasevich 1477243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1478243a2e63SVlad Yasevich { 1479243a2e63SVlad Yasevich } 1480243a2e63SVlad Yasevich 14812594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 14822594e906SNikolay Aleksandrov u16 vid) 1483a37b85c9SVlad Yasevich { 1484a37b85c9SVlad Yasevich return NULL; 1485a37b85c9SVlad Yasevich } 1486bc9a25d2SVlad Yasevich 1487169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1488169327d5SPetr Machata struct netlink_ext_ack *extack) 14895be5a2dfSVlad Yasevich { 14905be5a2dfSVlad Yasevich return 0; 14915be5a2dfSVlad Yasevich } 14925be5a2dfSVlad Yasevich 149378851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1494a37b85c9SVlad Yasevich { 1495a37b85c9SVlad Yasevich return 0; 1496a37b85c9SVlad Yasevich } 14972594e906SNikolay Aleksandrov 149877751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 149978851988SVlad Yasevich { 15003df6bf45SVlad Yasevich return 0; 150178851988SVlad Yasevich } 15022796d0c6SVlad Yasevich 15037a572964SVladimir Oltean static inline int br_vlan_filter_toggle(struct net_bridge *br, 1504c97f47e3SVladimir Oltean unsigned long val, 1505c97f47e3SVladimir Oltean struct netlink_ext_ack *extack) 1506a7854037SNikolay Aleksandrov { 1507a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1508a7854037SNikolay Aleksandrov } 15092594e906SNikolay Aleksandrov 15102594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 15112594e906SNikolay Aleksandrov u32 filter_mask) 15122594e906SNikolay Aleksandrov { 15132594e906SNikolay Aleksandrov return 0; 15142594e906SNikolay Aleksandrov } 15152594e906SNikolay Aleksandrov 1516bcf2766bSFelix Fietkau static inline void br_vlan_fill_forward_path_pvid(struct net_bridge *br, 1517bcf2766bSFelix Fietkau struct net_device_path_ctx *ctx, 1518bcf2766bSFelix Fietkau struct net_device_path *path) 1519bcf2766bSFelix Fietkau { 1520bcf2766bSFelix Fietkau } 1521bcf2766bSFelix Fietkau 1522bcf2766bSFelix Fietkau static inline int br_vlan_fill_forward_path_mode(struct net_bridge *br, 1523bcf2766bSFelix Fietkau struct net_bridge_port *dst, 1524bcf2766bSFelix Fietkau struct net_device_path *path) 1525bcf2766bSFelix Fietkau { 1526bcf2766bSFelix Fietkau return 0; 1527bcf2766bSFelix Fietkau } 1528bcf2766bSFelix Fietkau 15292594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 15302594e906SNikolay Aleksandrov const struct net_bridge *br) 15312594e906SNikolay Aleksandrov { 15322594e906SNikolay Aleksandrov return NULL; 15332594e906SNikolay Aleksandrov } 15342594e906SNikolay Aleksandrov 15352594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 15362594e906SNikolay Aleksandrov const struct net_bridge_port *p) 15372594e906SNikolay Aleksandrov { 15382594e906SNikolay Aleksandrov return NULL; 15392594e906SNikolay Aleksandrov } 1540907b1e6eSNikolay Aleksandrov 1541907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1542907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1543907b1e6eSNikolay Aleksandrov { 1544907b1e6eSNikolay Aleksandrov return NULL; 1545907b1e6eSNikolay Aleksandrov } 1546907b1e6eSNikolay Aleksandrov 1547907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1548907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1549907b1e6eSNikolay Aleksandrov { 1550907b1e6eSNikolay Aleksandrov return NULL; 1551907b1e6eSNikolay Aleksandrov } 1552a60c0903SNikolay Aleksandrov 1553a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1554281cc284SHeiner Kallweit struct pcpu_sw_netstats *stats) 1555a60c0903SNikolay Aleksandrov { 1556a60c0903SNikolay Aleksandrov } 15579c0ec2e7SMike Manning 15589c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 15599c0ec2e7SMike Manning unsigned long event) 15609c0ec2e7SMike Manning { 15619c0ec2e7SMike Manning } 15629c0ec2e7SMike Manning 1563091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 15649c0ec2e7SMike Manning unsigned long event, void *ptr) 15659c0ec2e7SMike Manning { 1566091adf9bSNikolay Aleksandrov return 0; 15679c0ec2e7SMike Manning } 15688dcea187SNikolay Aleksandrov 15698dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_init(void) 15708dcea187SNikolay Aleksandrov { 15718dcea187SNikolay Aleksandrov } 15728dcea187SNikolay Aleksandrov 15738dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_uninit(void) 15748dcea187SNikolay Aleksandrov { 15758dcea187SNikolay Aleksandrov } 1576cf5bddb9SNikolay Aleksandrov 1577cf5bddb9SNikolay Aleksandrov static inline void br_vlan_notify(const struct net_bridge *br, 1578cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1579cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1580cf5bddb9SNikolay Aleksandrov int cmd) 1581cf5bddb9SNikolay Aleksandrov { 1582cf5bddb9SNikolay Aleksandrov } 1583528ae84aSNikolay Aleksandrov 1584528ae84aSNikolay Aleksandrov static inline bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1585528ae84aSNikolay Aleksandrov const struct net_bridge_vlan *range_end) 1586528ae84aSNikolay Aleksandrov { 1587528ae84aSNikolay Aleksandrov return true; 1588528ae84aSNikolay Aleksandrov } 1589243a2e63SVlad Yasevich #endif 1590243a2e63SVlad Yasevich 15917a53e718SNikolay Aleksandrov /* br_vlan_options.c */ 15927a53e718SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 159399f7c5e0SNikolay Aleksandrov bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, 159499f7c5e0SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 15957a53e718SNikolay Aleksandrov bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v); 15967a53e718SNikolay Aleksandrov size_t br_vlan_opts_nl_size(void); 1597a5d29ae2SNikolay Aleksandrov int br_vlan_process_options(const struct net_bridge *br, 1598a5d29ae2SNikolay Aleksandrov const struct net_bridge_port *p, 1599a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_start, 1600a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_end, 1601a5d29ae2SNikolay Aleksandrov struct nlattr **tb, 1602a5d29ae2SNikolay Aleksandrov struct netlink_ext_ack *extack); 160347ecd2dbSNikolay Aleksandrov int br_vlan_rtm_process_global_options(struct net_device *dev, 160447ecd2dbSNikolay Aleksandrov const struct nlattr *attr, 160547ecd2dbSNikolay Aleksandrov int cmd, 160647ecd2dbSNikolay Aleksandrov struct netlink_ext_ack *extack); 1607743a53d9SNikolay Aleksandrov bool br_vlan_global_opts_can_enter_range(const struct net_bridge_vlan *v_curr, 1608743a53d9SNikolay Aleksandrov const struct net_bridge_vlan *r_end); 1609743a53d9SNikolay Aleksandrov bool br_vlan_global_opts_fill(struct sk_buff *skb, u16 vid, u16 vid_range, 1610743a53d9SNikolay Aleksandrov const struct net_bridge_vlan *v_opts); 1611a580c76dSNikolay Aleksandrov 1612a580c76dSNikolay Aleksandrov /* vlan state manipulation helpers using *_ONCE to annotate lock-free access */ 1613a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v) 1614a580c76dSNikolay Aleksandrov { 1615a580c76dSNikolay Aleksandrov return READ_ONCE(v->state); 1616a580c76dSNikolay Aleksandrov } 1617a580c76dSNikolay Aleksandrov 1618a580c76dSNikolay Aleksandrov static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state) 1619a580c76dSNikolay Aleksandrov { 1620a580c76dSNikolay Aleksandrov WRITE_ONCE(v->state, state); 1621a580c76dSNikolay Aleksandrov } 1622a580c76dSNikolay Aleksandrov 1623a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg) 1624a580c76dSNikolay Aleksandrov { 1625a580c76dSNikolay Aleksandrov return READ_ONCE(vg->pvid_state); 1626a580c76dSNikolay Aleksandrov } 1627a580c76dSNikolay Aleksandrov 1628a580c76dSNikolay Aleksandrov static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg, 1629a580c76dSNikolay Aleksandrov u8 state) 1630a580c76dSNikolay Aleksandrov { 1631a580c76dSNikolay Aleksandrov WRITE_ONCE(vg->pvid_state, state); 1632a580c76dSNikolay Aleksandrov } 1633a580c76dSNikolay Aleksandrov 1634a580c76dSNikolay Aleksandrov /* learn_allow is true at ingress and false at egress */ 1635a580c76dSNikolay Aleksandrov static inline bool br_vlan_state_allowed(u8 state, bool learn_allow) 1636a580c76dSNikolay Aleksandrov { 1637a580c76dSNikolay Aleksandrov switch (state) { 1638a580c76dSNikolay Aleksandrov case BR_STATE_LEARNING: 1639a580c76dSNikolay Aleksandrov return learn_allow; 1640a580c76dSNikolay Aleksandrov case BR_STATE_FORWARDING: 1641a580c76dSNikolay Aleksandrov return true; 1642a580c76dSNikolay Aleksandrov default: 1643a580c76dSNikolay Aleksandrov return false; 1644a580c76dSNikolay Aleksandrov } 1645a580c76dSNikolay Aleksandrov } 16467a53e718SNikolay Aleksandrov #endif 16477a53e718SNikolay Aleksandrov 16481a4ba64dSPablo Neira Ayuso struct nf_br_ops { 16491a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 16501a4ba64dSPablo Neira Ayuso }; 16511a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 16521a4ba64dSPablo Neira Ayuso 16531da177e4SLinus Torvalds /* br_netfilter.c */ 165434666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 165534666d46SPablo Neira Ayuso int br_nf_core_init(void); 165634666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1657348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1658c0909713SStephen Hemminger #else 165934666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 166034666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 16614adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1662c0909713SStephen Hemminger #endif 16631da177e4SLinus Torvalds 16641da177e4SLinus Torvalds /* br_stp.c */ 1665775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1666348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1667348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1668348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 16691da177e4SLinus Torvalds 1670348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1671348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1672348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1673348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 167482dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 16759e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 167614f98f25Sstephen hemminger 167714f98f25Sstephen hemminger 16781da177e4SLinus Torvalds /* br_stp_if.c */ 1679348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1680348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1681419dba8aSHoratiu Vultur int br_stp_set_enabled(struct net_bridge *br, unsigned long val, 1682419dba8aSHoratiu Vultur struct netlink_ext_ack *extack); 1683348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1684348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1685348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1686348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1687348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1688348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1689348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1690348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 16911da177e4SLinus Torvalds 16921da177e4SLinus Torvalds /* br_stp_bpdu.c */ 16937c85fbf0SPatrick McHardy struct stp_proto; 1694348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 16957c85fbf0SPatrick McHardy struct net_device *dev); 16961da177e4SLinus Torvalds 16971da177e4SLinus Torvalds /* br_stp_timer.c */ 1698348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1699348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1700348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 17011da177e4SLinus Torvalds 17021da177e4SLinus Torvalds /* br.c */ 1703e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1704da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1705da678292SMichał Mirosław #endif 17061da177e4SLinus Torvalds 170765369933SHoratiu Vultur /* br_mrp.c */ 170865369933SHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 170965369933SHoratiu Vultur int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 171065369933SHoratiu Vultur struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 171165369933SHoratiu Vultur bool br_mrp_enabled(struct net_bridge *br); 171265369933SHoratiu Vultur void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p); 1713df42ef22SHoratiu Vultur int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br); 171465369933SHoratiu Vultur #else 171565369933SHoratiu Vultur static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 171665369933SHoratiu Vultur struct nlattr *attr, int cmd, 171765369933SHoratiu Vultur struct netlink_ext_ack *extack) 171865369933SHoratiu Vultur { 171965369933SHoratiu Vultur return -EOPNOTSUPP; 172065369933SHoratiu Vultur } 172165369933SHoratiu Vultur 172265369933SHoratiu Vultur static inline bool br_mrp_enabled(struct net_bridge *br) 172365369933SHoratiu Vultur { 17248741e184SJason Yan return false; 172565369933SHoratiu Vultur } 172665369933SHoratiu Vultur 172765369933SHoratiu Vultur static inline void br_mrp_port_del(struct net_bridge *br, 172865369933SHoratiu Vultur struct net_bridge_port *p) 172965369933SHoratiu Vultur { 173065369933SHoratiu Vultur } 1731df42ef22SHoratiu Vultur 1732df42ef22SHoratiu Vultur static inline int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br) 1733df42ef22SHoratiu Vultur { 1734df42ef22SHoratiu Vultur return 0; 1735df42ef22SHoratiu Vultur } 1736df42ef22SHoratiu Vultur 173765369933SHoratiu Vultur #endif 173865369933SHoratiu Vultur 17392be665c3SHenrik Bjoernlund /* br_cfm.c */ 174086a14b79SHenrik Bjoernlund #if IS_ENABLED(CONFIG_BRIDGE_CFM) 17412be665c3SHenrik Bjoernlund int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p, 17422be665c3SHenrik Bjoernlund struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 17432be665c3SHenrik Bjoernlund bool br_cfm_created(struct net_bridge *br); 174486a14b79SHenrik Bjoernlund void br_cfm_port_del(struct net_bridge *br, struct net_bridge_port *p); 17455e312fc0SHenrik Bjoernlund int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br); 1746b6d0425bSHenrik Bjoernlund int br_cfm_status_fill_info(struct sk_buff *skb, 1747b6d0425bSHenrik Bjoernlund struct net_bridge *br, 1748b6d0425bSHenrik Bjoernlund bool getlink); 1749b6d0425bSHenrik Bjoernlund int br_cfm_mep_count(struct net_bridge *br, u32 *count); 1750b6d0425bSHenrik Bjoernlund int br_cfm_peer_mep_count(struct net_bridge *br, u32 *count); 175186a14b79SHenrik Bjoernlund #else 17522be665c3SHenrik Bjoernlund static inline int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p, 17532be665c3SHenrik Bjoernlund struct nlattr *attr, int cmd, 17542be665c3SHenrik Bjoernlund struct netlink_ext_ack *extack) 17552be665c3SHenrik Bjoernlund { 17562be665c3SHenrik Bjoernlund return -EOPNOTSUPP; 17572be665c3SHenrik Bjoernlund } 17582be665c3SHenrik Bjoernlund 17592be665c3SHenrik Bjoernlund static inline bool br_cfm_created(struct net_bridge *br) 17602be665c3SHenrik Bjoernlund { 17612be665c3SHenrik Bjoernlund return false; 17622be665c3SHenrik Bjoernlund } 17632be665c3SHenrik Bjoernlund 176486a14b79SHenrik Bjoernlund static inline void br_cfm_port_del(struct net_bridge *br, 176586a14b79SHenrik Bjoernlund struct net_bridge_port *p) 176686a14b79SHenrik Bjoernlund { 176786a14b79SHenrik Bjoernlund } 17685e312fc0SHenrik Bjoernlund 17695e312fc0SHenrik Bjoernlund static inline int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br) 17705e312fc0SHenrik Bjoernlund { 17715e312fc0SHenrik Bjoernlund return -EOPNOTSUPP; 17725e312fc0SHenrik Bjoernlund } 1773e77824d8SHenrik Bjoernlund 1774b6d0425bSHenrik Bjoernlund static inline int br_cfm_status_fill_info(struct sk_buff *skb, 1775b6d0425bSHenrik Bjoernlund struct net_bridge *br, 1776b6d0425bSHenrik Bjoernlund bool getlink) 1777b6d0425bSHenrik Bjoernlund { 1778b6d0425bSHenrik Bjoernlund return -EOPNOTSUPP; 1779b6d0425bSHenrik Bjoernlund } 1780b6d0425bSHenrik Bjoernlund 1781b6d0425bSHenrik Bjoernlund static inline int br_cfm_mep_count(struct net_bridge *br, u32 *count) 1782b6d0425bSHenrik Bjoernlund { 1783b6d0425bSHenrik Bjoernlund return -EOPNOTSUPP; 1784b6d0425bSHenrik Bjoernlund } 1785b6d0425bSHenrik Bjoernlund 1786b6d0425bSHenrik Bjoernlund static inline int br_cfm_peer_mep_count(struct net_bridge *br, u32 *count) 1787e77824d8SHenrik Bjoernlund { 1788e77824d8SHenrik Bjoernlund return -EOPNOTSUPP; 1789e77824d8SHenrik Bjoernlund } 179086a14b79SHenrik Bjoernlund #endif 179186a14b79SHenrik Bjoernlund 179211dc1f36SStephen Hemminger /* br_netlink.c */ 1793149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1794348662a1SJoe Perches int br_netlink_init(void); 1795348662a1SJoe Perches void br_netlink_fini(void); 179692899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 179792899063SNikolay Aleksandrov const struct net_bridge_port *port); 1798b6d0425bSHenrik Bjoernlund void br_info_notify(int event, const struct net_bridge *br, 1799b6d0425bSHenrik Bjoernlund const struct net_bridge_port *port, u32 filter); 18002fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 18012fd527b7SPetr Machata struct netlink_ext_ack *extack); 1802add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1803348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 180446c264daSNicolas Dichtel u32 filter_mask, int nlflags); 1805f26b2965SNikolay Aleksandrov int br_process_vlan_info(struct net_bridge *br, 1806f26b2965SNikolay Aleksandrov struct net_bridge_port *p, int cmd, 1807f26b2965SNikolay Aleksandrov struct bridge_vlan_info *vinfo_curr, 1808f26b2965SNikolay Aleksandrov struct bridge_vlan_info **vinfo_last, 1809f26b2965SNikolay Aleksandrov bool *changed, 1810f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack); 181111dc1f36SStephen Hemminger 18121da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 18131da177e4SLinus Torvalds /* br_sysfs_if.c */ 181452cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1815348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1816348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 18171da177e4SLinus Torvalds 18181da177e4SLinus Torvalds /* br_sysfs_br.c */ 1819348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1820348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 18211da177e4SLinus Torvalds 18221da177e4SLinus Torvalds #else 18231da177e4SLinus Torvalds 18240cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 18250cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 18260cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 18270cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 18281da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 18291da177e4SLinus Torvalds 18306bc506b4SIdo Schimmel /* br_switchdev.c */ 18316bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 18326bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 18336bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 18346bc506b4SIdo Schimmel struct sk_buff *skb); 18356bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 18366bc506b4SIdo Schimmel const struct sk_buff *skb); 18373922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 18383922285dSArkadi Sharshevsky unsigned long flags, 1839078bbb85SVladimir Oltean unsigned long mask, 1840078bbb85SVladimir Oltean struct netlink_ext_ack *extack); 18416eb38bf8STobias Waldekranz void br_switchdev_fdb_notify(struct net_bridge *br, 18426eb38bf8STobias Waldekranz const struct net_bridge_fdb_entry *fdb, int type); 1843169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1844169327d5SPetr Machata struct netlink_ext_ack *extack); 1845d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1846f1c2eddfSIdo Schimmel 1847f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1848f1c2eddfSIdo Schimmel { 1849f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1850f1c2eddfSIdo Schimmel } 18516bc506b4SIdo Schimmel #else 18526bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 18536bc506b4SIdo Schimmel { 18546bc506b4SIdo Schimmel return 0; 18556bc506b4SIdo Schimmel } 18566bc506b4SIdo Schimmel 18576bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 18586bc506b4SIdo Schimmel struct sk_buff *skb) 18596bc506b4SIdo Schimmel { 18606bc506b4SIdo Schimmel } 18616bc506b4SIdo Schimmel 18626bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 18636bc506b4SIdo Schimmel const struct sk_buff *skb) 18646bc506b4SIdo Schimmel { 18656bc506b4SIdo Schimmel return true; 18666bc506b4SIdo Schimmel } 18673922285dSArkadi Sharshevsky 18683922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 18693922285dSArkadi Sharshevsky unsigned long flags, 1870078bbb85SVladimir Oltean unsigned long mask, 1871078bbb85SVladimir Oltean struct netlink_ext_ack *extack) 18723922285dSArkadi Sharshevsky { 18733922285dSArkadi Sharshevsky return 0; 18743922285dSArkadi Sharshevsky } 18756b26b51bSArkadi Sharshevsky 1876d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1877169327d5SPetr Machata u16 vid, u16 flags, 1878169327d5SPetr Machata struct netlink_ext_ack *extack) 1879d66e4348SPetr Machata { 1880d66e4348SPetr Machata return -EOPNOTSUPP; 1881d66e4348SPetr Machata } 1882d66e4348SPetr Machata 1883d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1884d66e4348SPetr Machata { 1885d66e4348SPetr Machata return -EOPNOTSUPP; 1886d66e4348SPetr Machata } 1887d66e4348SPetr Machata 18886b26b51bSArkadi Sharshevsky static inline void 18896eb38bf8STobias Waldekranz br_switchdev_fdb_notify(struct net_bridge *br, 18906eb38bf8STobias Waldekranz const struct net_bridge_fdb_entry *fdb, int type) 18916b26b51bSArkadi Sharshevsky { 18926b26b51bSArkadi Sharshevsky } 1893f1c2eddfSIdo Schimmel 1894f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1895f1c2eddfSIdo Schimmel { 1896f1c2eddfSIdo Schimmel } 18976bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 18986bc506b4SIdo Schimmel 1899057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1900821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1901057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1902057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1903ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1904ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1905ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 19061da177e4SLinus Torvalds #endif 1907