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 32*85826610STobias Waldekranz #define BR_HWDOM_MAX BITS_PER_LONG 33*85826610STobias Waldekranz 349cde0708SStephen Hemminger #define BR_VERSION "2.3" 359cde0708SStephen Hemminger 36515853ccSstephen hemminger /* Control of forwarding link local multicast */ 37515853ccSstephen hemminger #define BR_GROUPFWD_DEFAULT 0 38784b58a3SBernhard Thaler /* Don't allow forwarding of control protocols like STP, MAC PAUSE and LACP */ 395af48b59SNikolay Aleksandrov enum { 405af48b59SNikolay Aleksandrov BR_GROUPFWD_STP = BIT(0), 415af48b59SNikolay Aleksandrov BR_GROUPFWD_MACPAUSE = BIT(1), 425af48b59SNikolay Aleksandrov BR_GROUPFWD_LACP = BIT(2), 435af48b59SNikolay Aleksandrov }; 445af48b59SNikolay Aleksandrov 455af48b59SNikolay Aleksandrov #define BR_GROUPFWD_RESTRICTED (BR_GROUPFWD_STP | BR_GROUPFWD_MACPAUSE | \ 465af48b59SNikolay Aleksandrov BR_GROUPFWD_LACP) 47f2808d22SToshiaki Makita /* The Nearest Customer Bridge Group Address, 01-80-C2-00-00-[00,0B,0C,0D,0F] */ 48f2808d22SToshiaki Makita #define BR_GROUPFWD_8021AD 0xB801u 49515853ccSstephen hemminger 509cde0708SStephen Hemminger /* Path to usermode spanning tree program */ 519cde0708SStephen Hemminger #define BR_STP_PROG "/sbin/bridge-stp" 528cbb512eSStephen Hemminger 5331cbc39bSNikolay Aleksandrov #define BR_FDB_NOTIFY_SETTABLE_BITS (FDB_NOTIFY_BIT | FDB_NOTIFY_INACTIVE_BIT) 5431cbc39bSNikolay Aleksandrov 551da177e4SLinus Torvalds typedef struct bridge_id bridge_id; 561da177e4SLinus Torvalds typedef struct mac_addr mac_addr; 571da177e4SLinus Torvalds typedef __u16 port_id; 581da177e4SLinus Torvalds 591c1cb6d0SNikolay Aleksandrov struct bridge_id { 601da177e4SLinus Torvalds unsigned char prio[2]; 61e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 621da177e4SLinus Torvalds }; 631da177e4SLinus Torvalds 641c1cb6d0SNikolay Aleksandrov struct mac_addr { 65e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 661da177e4SLinus Torvalds }; 671da177e4SLinus Torvalds 68cc0fdd80SLinus Lüssing #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 69cc0fdd80SLinus Lüssing /* our own querier */ 7090010b36SLinus Lüssing struct bridge_mcast_own_query { 71cc0fdd80SLinus Lüssing struct timer_list timer; 72cc0fdd80SLinus Lüssing u32 startup_sent; 73cc0fdd80SLinus Lüssing }; 74cc0fdd80SLinus Lüssing 75cc0fdd80SLinus Lüssing /* other querier */ 7690010b36SLinus Lüssing struct bridge_mcast_other_query { 77cc0fdd80SLinus Lüssing struct timer_list timer; 78cc0fdd80SLinus Lüssing unsigned long delay_time; 79cc0fdd80SLinus Lüssing }; 80dc4eb53aSLinus Lüssing 81dc4eb53aSLinus Lüssing /* selected querier */ 82dc4eb53aSLinus Lüssing struct bridge_mcast_querier { 83dc4eb53aSLinus Lüssing struct br_ip addr; 842cd41431SLinus Lüssing struct net_bridge_port __rcu *port; 85dc4eb53aSLinus Lüssing }; 861080ab95SNikolay Aleksandrov 871080ab95SNikolay Aleksandrov /* IGMP/MLD statistics */ 881080ab95SNikolay Aleksandrov struct bridge_mcast_stats { 891080ab95SNikolay Aleksandrov struct br_mcast_stats mstats; 901080ab95SNikolay Aleksandrov struct u64_stats_sync syncp; 911080ab95SNikolay Aleksandrov }; 92cc0fdd80SLinus Lüssing #endif 93cc0fdd80SLinus Lüssing 949632233eSNikolay Aleksandrov /* net_bridge_mcast_port must be always defined due to forwarding stubs */ 959632233eSNikolay Aleksandrov struct net_bridge_mcast_port { 969632233eSNikolay Aleksandrov #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 979632233eSNikolay Aleksandrov struct net_bridge_port *port; 98613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan; 999632233eSNikolay Aleksandrov 1009632233eSNikolay Aleksandrov struct bridge_mcast_own_query ip4_own_query; 1019632233eSNikolay Aleksandrov struct timer_list ip4_mc_router_timer; 1029632233eSNikolay Aleksandrov struct hlist_node ip4_rlist; 1039632233eSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 1049632233eSNikolay Aleksandrov struct bridge_mcast_own_query ip6_own_query; 1059632233eSNikolay Aleksandrov struct timer_list ip6_mc_router_timer; 1069632233eSNikolay Aleksandrov struct hlist_node ip6_rlist; 1079632233eSNikolay Aleksandrov #endif /* IS_ENABLED(CONFIG_IPV6) */ 1089632233eSNikolay Aleksandrov unsigned char multicast_router; 1099632233eSNikolay Aleksandrov #endif /* CONFIG_BRIDGE_IGMP_SNOOPING */ 1109632233eSNikolay Aleksandrov }; 1119632233eSNikolay Aleksandrov 112d3d065c0SNikolay Aleksandrov /* net_bridge_mcast must be always defined due to forwarding stubs */ 113d3d065c0SNikolay Aleksandrov struct net_bridge_mcast { 114d3d065c0SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 115d3d065c0SNikolay Aleksandrov struct net_bridge *br; 116613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan; 117d3d065c0SNikolay Aleksandrov 118d3d065c0SNikolay Aleksandrov u32 multicast_last_member_count; 119d3d065c0SNikolay Aleksandrov u32 multicast_startup_query_count; 120d3d065c0SNikolay Aleksandrov 121d3d065c0SNikolay Aleksandrov u8 multicast_igmp_version; 122d3d065c0SNikolay Aleksandrov u8 multicast_router; 123d3d065c0SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 124d3d065c0SNikolay Aleksandrov u8 multicast_mld_version; 125d3d065c0SNikolay Aleksandrov #endif 126d3d065c0SNikolay Aleksandrov unsigned long multicast_last_member_interval; 127d3d065c0SNikolay Aleksandrov unsigned long multicast_membership_interval; 128d3d065c0SNikolay Aleksandrov unsigned long multicast_querier_interval; 129d3d065c0SNikolay Aleksandrov unsigned long multicast_query_interval; 130d3d065c0SNikolay Aleksandrov unsigned long multicast_query_response_interval; 131d3d065c0SNikolay Aleksandrov unsigned long multicast_startup_query_interval; 132d3d065c0SNikolay Aleksandrov struct hlist_head ip4_mc_router_list; 133d3d065c0SNikolay Aleksandrov struct timer_list ip4_mc_router_timer; 134d3d065c0SNikolay Aleksandrov struct bridge_mcast_other_query ip4_other_query; 135d3d065c0SNikolay Aleksandrov struct bridge_mcast_own_query ip4_own_query; 136d3d065c0SNikolay Aleksandrov struct bridge_mcast_querier ip4_querier; 137d3d065c0SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 138d3d065c0SNikolay Aleksandrov struct hlist_head ip6_mc_router_list; 139d3d065c0SNikolay Aleksandrov struct timer_list ip6_mc_router_timer; 140d3d065c0SNikolay Aleksandrov struct bridge_mcast_other_query ip6_other_query; 141d3d065c0SNikolay Aleksandrov struct bridge_mcast_own_query ip6_own_query; 142d3d065c0SNikolay Aleksandrov struct bridge_mcast_querier ip6_querier; 143d3d065c0SNikolay Aleksandrov #endif /* IS_ENABLED(CONFIG_IPV6) */ 144d3d065c0SNikolay Aleksandrov #endif /* CONFIG_BRIDGE_IGMP_SNOOPING */ 145d3d065c0SNikolay Aleksandrov }; 146d3d065c0SNikolay Aleksandrov 147efa5356bSRoopa Prabhu struct br_tunnel_info { 148efa5356bSRoopa Prabhu __be64 tunnel_id; 14958e20717SNikolay Aleksandrov struct metadata_dst __rcu *tunnel_dst; 150efa5356bSRoopa Prabhu }; 151efa5356bSRoopa Prabhu 1529d332e69SNikolay Aleksandrov /* private vlan flags */ 1539d332e69SNikolay Aleksandrov enum { 1549d332e69SNikolay Aleksandrov BR_VLFLAG_PER_PORT_STATS = BIT(0), 15527973793SIdo Schimmel BR_VLFLAG_ADDED_BY_SWITCHDEV = BIT(1), 1567b54aaafSNikolay Aleksandrov BR_VLFLAG_MCAST_ENABLED = BIT(2), 1577b54aaafSNikolay Aleksandrov BR_VLFLAG_GLOBAL_MCAST_ENABLED = BIT(3), 1589d332e69SNikolay Aleksandrov }; 1599d332e69SNikolay Aleksandrov 1602594e906SNikolay Aleksandrov /** 1612594e906SNikolay Aleksandrov * struct net_bridge_vlan - per-vlan entry 1622594e906SNikolay Aleksandrov * 1632594e906SNikolay Aleksandrov * @vnode: rhashtable member 1642594e906SNikolay Aleksandrov * @vid: VLAN id 1652594e906SNikolay Aleksandrov * @flags: bridge vlan flags 1669d332e69SNikolay Aleksandrov * @priv_flags: private (in-kernel) bridge vlan flags 167a580c76dSNikolay Aleksandrov * @state: STP state (e.g. blocking, learning, forwarding) 1686dada9b1SNikolay Aleksandrov * @stats: per-cpu VLAN statistics 1692594e906SNikolay Aleksandrov * @br: if MASTER flag set, this points to a bridge struct 1702594e906SNikolay Aleksandrov * @port: if MASTER flag unset, this points to a port struct 1712594e906SNikolay Aleksandrov * @refcnt: if MASTER flag set, this is bumped for each port referencing it 1722594e906SNikolay Aleksandrov * @brvlan: if MASTER flag unset, this points to the global per-VLAN context 1732594e906SNikolay Aleksandrov * for this VLAN entry 174613d61dbSNikolay Aleksandrov * @br_mcast_ctx: if MASTER flag set, this is the global vlan multicast context 175613d61dbSNikolay Aleksandrov * @port_mcast_ctx: if MASTER flag unset, this is the per-port/vlan multicast 176613d61dbSNikolay Aleksandrov * context 1772594e906SNikolay Aleksandrov * @vlist: sorted list of VLAN entries 1782594e906SNikolay Aleksandrov * @rcu: used for entry destruction 1792594e906SNikolay Aleksandrov * 1802594e906SNikolay Aleksandrov * This structure is shared between the global per-VLAN entries contained in 1812594e906SNikolay Aleksandrov * the bridge rhashtable and the local per-port per-VLAN entries contained in 1822594e906SNikolay Aleksandrov * the port's rhashtable. The union entries should be interpreted depending on 1832594e906SNikolay Aleksandrov * the entry flags that are set. 1842594e906SNikolay Aleksandrov */ 1852594e906SNikolay Aleksandrov struct net_bridge_vlan { 1862594e906SNikolay Aleksandrov struct rhash_head vnode; 187efa5356bSRoopa Prabhu struct rhash_head tnode; 1882594e906SNikolay Aleksandrov u16 vid; 1892594e906SNikolay Aleksandrov u16 flags; 1909d332e69SNikolay Aleksandrov u16 priv_flags; 191a580c76dSNikolay Aleksandrov u8 state; 192281cc284SHeiner Kallweit struct pcpu_sw_netstats __percpu *stats; 193243a2e63SVlad Yasevich union { 194243a2e63SVlad Yasevich struct net_bridge *br; 1952594e906SNikolay Aleksandrov struct net_bridge_port *port; 1962594e906SNikolay Aleksandrov }; 1972594e906SNikolay Aleksandrov union { 19825127759SReshetova, Elena refcount_t refcnt; 1992594e906SNikolay Aleksandrov struct net_bridge_vlan *brvlan; 2002594e906SNikolay Aleksandrov }; 201efa5356bSRoopa Prabhu 202efa5356bSRoopa Prabhu struct br_tunnel_info tinfo; 203efa5356bSRoopa Prabhu 204613d61dbSNikolay Aleksandrov union { 205613d61dbSNikolay Aleksandrov struct net_bridge_mcast br_mcast_ctx; 206613d61dbSNikolay Aleksandrov struct net_bridge_mcast_port port_mcast_ctx; 207613d61dbSNikolay Aleksandrov }; 208613d61dbSNikolay Aleksandrov 2092594e906SNikolay Aleksandrov struct list_head vlist; 2102594e906SNikolay Aleksandrov 211243a2e63SVlad Yasevich struct rcu_head rcu; 2122594e906SNikolay Aleksandrov }; 2132594e906SNikolay Aleksandrov 2142594e906SNikolay Aleksandrov /** 2152594e906SNikolay Aleksandrov * struct net_bridge_vlan_group 2162594e906SNikolay Aleksandrov * 2172594e906SNikolay Aleksandrov * @vlan_hash: VLAN entry rhashtable 2182594e906SNikolay Aleksandrov * @vlan_list: sorted VLAN entry list 2192594e906SNikolay Aleksandrov * @num_vlans: number of total VLAN entries 22077751ee8SNikolay Aleksandrov * @pvid: PVID VLAN id 221a580c76dSNikolay Aleksandrov * @pvid_state: PVID's STP state (e.g. forwarding, learning, blocking) 2222594e906SNikolay Aleksandrov * 2232594e906SNikolay Aleksandrov * IMPORTANT: Be careful when checking if there're VLAN entries using list 2242594e906SNikolay Aleksandrov * primitives because the bridge can have entries in its list which 2252594e906SNikolay Aleksandrov * are just for global context but not for filtering, i.e. they have 2262594e906SNikolay Aleksandrov * the master flag set but not the brentry flag. If you have to check 2272594e906SNikolay Aleksandrov * if there're "real" entries in the bridge please test @num_vlans 2282594e906SNikolay Aleksandrov */ 2292594e906SNikolay Aleksandrov struct net_bridge_vlan_group { 2302594e906SNikolay Aleksandrov struct rhashtable vlan_hash; 231efa5356bSRoopa Prabhu struct rhashtable tunnel_hash; 2322594e906SNikolay Aleksandrov struct list_head vlan_list; 2336cbdceebSVlad Yasevich u16 num_vlans; 23477751ee8SNikolay Aleksandrov u16 pvid; 235a580c76dSNikolay Aleksandrov u8 pvid_state; 236243a2e63SVlad Yasevich }; 237243a2e63SVlad Yasevich 2386869c3b0SNikolay Aleksandrov /* bridge fdb flags */ 2396869c3b0SNikolay Aleksandrov enum { 2406869c3b0SNikolay Aleksandrov BR_FDB_LOCAL, 24129e63fffSNikolay Aleksandrov BR_FDB_STATIC, 242e0458d9aSNikolay Aleksandrov BR_FDB_STICKY, 243ac3ca6afSNikolay Aleksandrov BR_FDB_ADDED_BY_USER, 244b5cd9f7cSNikolay Aleksandrov BR_FDB_ADDED_BY_EXT_LEARN, 245d38c6e3dSNikolay Aleksandrov BR_FDB_OFFLOADED, 24631cbc39bSNikolay Aleksandrov BR_FDB_NOTIFY, 24731cbc39bSNikolay Aleksandrov BR_FDB_NOTIFY_INACTIVE 2486869c3b0SNikolay Aleksandrov }; 2496869c3b0SNikolay Aleksandrov 250eb793583SNikolay Aleksandrov struct net_bridge_fdb_key { 251eb793583SNikolay Aleksandrov mac_addr addr; 252eb793583SNikolay Aleksandrov u16 vlan_id; 253eb793583SNikolay Aleksandrov }; 254eb793583SNikolay Aleksandrov 2551214628cSNikolay Aleksandrov struct net_bridge_fdb_entry { 256eb793583SNikolay Aleksandrov struct rhash_head rhnode; 2571da177e4SLinus Torvalds struct net_bridge_port *dst; 2581da177e4SLinus Torvalds 259eb793583SNikolay Aleksandrov struct net_bridge_fdb_key key; 260eb793583SNikolay Aleksandrov struct hlist_node fdb_node; 2616869c3b0SNikolay Aleksandrov unsigned long flags; 2621214628cSNikolay Aleksandrov 2631214628cSNikolay Aleksandrov /* write-heavy members should not affect lookups */ 2641214628cSNikolay Aleksandrov unsigned long updated ____cacheline_aligned_in_smp; 2651214628cSNikolay Aleksandrov unsigned long used; 2661214628cSNikolay Aleksandrov 267b22fbf22SNikolay Aleksandrov struct rcu_head rcu; 2681da177e4SLinus Torvalds }; 2691da177e4SLinus Torvalds 2709d06b6d8SElad Raz #define MDB_PG_FLAGS_PERMANENT BIT(0) 2719d06b6d8SElad Raz #define MDB_PG_FLAGS_OFFLOAD BIT(1) 2723247b272SNikolay Aleksandrov #define MDB_PG_FLAGS_FAST_LEAVE BIT(2) 2738266a049SNikolay Aleksandrov #define MDB_PG_FLAGS_STAR_EXCL BIT(3) 2749116ffbfSNikolay Aleksandrov #define MDB_PG_FLAGS_BLOCKED BIT(4) 2759d06b6d8SElad Raz 2768b671779SNikolay Aleksandrov #define PG_SRC_ENT_LIMIT 32 2778b671779SNikolay Aleksandrov 2788b671779SNikolay Aleksandrov #define BR_SGRP_F_DELETE BIT(0) 2798b671779SNikolay Aleksandrov #define BR_SGRP_F_SEND BIT(1) 280b0812368SNikolay Aleksandrov #define BR_SGRP_F_INSTALLED BIT(2) 2818b671779SNikolay Aleksandrov 282e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc { 283e12cec65SNikolay Aleksandrov struct hlist_node gc_node; 284e12cec65SNikolay Aleksandrov void (*destroy)(struct net_bridge_mcast_gc *gc); 285e12cec65SNikolay Aleksandrov }; 286e12cec65SNikolay Aleksandrov 2878b671779SNikolay Aleksandrov struct net_bridge_group_src { 2888b671779SNikolay Aleksandrov struct hlist_node node; 2898b671779SNikolay Aleksandrov 2908b671779SNikolay Aleksandrov struct br_ip addr; 2918b671779SNikolay Aleksandrov struct net_bridge_port_group *pg; 2928b671779SNikolay Aleksandrov u8 flags; 293438ef2d0SNikolay Aleksandrov u8 src_query_rexmit_cnt; 2948b671779SNikolay Aleksandrov struct timer_list timer; 2958b671779SNikolay Aleksandrov 2968b671779SNikolay Aleksandrov struct net_bridge *br; 297e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2988b671779SNikolay Aleksandrov struct rcu_head rcu; 2998b671779SNikolay Aleksandrov }; 3008b671779SNikolay Aleksandrov 301085b53c8SNikolay Aleksandrov struct net_bridge_port_group_sg_key { 302eb1d1641SHerbert Xu struct net_bridge_port *port; 3038ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 304085b53c8SNikolay Aleksandrov }; 305085b53c8SNikolay Aleksandrov 306085b53c8SNikolay Aleksandrov struct net_bridge_port_group { 307085b53c8SNikolay Aleksandrov struct net_bridge_port_group __rcu *next; 308085b53c8SNikolay Aleksandrov struct net_bridge_port_group_sg_key key; 309206e7323SThomas Martitz unsigned char eth_addr[ETH_ALEN] __aligned(2); 3109d06b6d8SElad Raz unsigned char flags; 3118b671779SNikolay Aleksandrov unsigned char filter_mode; 31242c11ccfSNikolay Aleksandrov unsigned char grp_query_rexmit_cnt; 3138f8cb77eSNikolay Aleksandrov unsigned char rt_protocol; 3146ec0d0eeSNikolay Aleksandrov 3158b671779SNikolay Aleksandrov struct hlist_head src_list; 3168b671779SNikolay Aleksandrov unsigned int src_ents; 3176ec0d0eeSNikolay Aleksandrov struct timer_list timer; 31842c11ccfSNikolay Aleksandrov struct timer_list rexmit_timer; 3196ec0d0eeSNikolay Aleksandrov struct hlist_node mglist; 3208f07b831SNikolay Aleksandrov struct rb_root eht_set_tree; 3218f07b831SNikolay Aleksandrov struct rb_root eht_host_tree; 3226ec0d0eeSNikolay Aleksandrov 323085b53c8SNikolay Aleksandrov struct rhash_head rhnode; 324e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 3256ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 326eb1d1641SHerbert Xu }; 327eb1d1641SHerbert Xu 3281c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_entry { 32919e3a9c9SNikolay Aleksandrov struct rhash_head rhnode; 330eb1d1641SHerbert Xu struct net_bridge *br; 331e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 3328ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 333ff0fd34eSAndrew Lunn bool host_joined; 3346ec0d0eeSNikolay Aleksandrov 3356ec0d0eeSNikolay Aleksandrov struct timer_list timer; 33619e3a9c9SNikolay Aleksandrov struct hlist_node mdb_node; 3376ec0d0eeSNikolay Aleksandrov 338e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 3396ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 340eb1d1641SHerbert Xu }; 341eb1d1641SHerbert Xu 3421f90c7f3SNikolay Aleksandrov struct net_bridge_port { 3431da177e4SLinus Torvalds struct net_bridge *br; 3441da177e4SLinus Torvalds struct net_device *dev; 3451da177e4SLinus Torvalds struct list_head list; 3461da177e4SLinus Torvalds 3471f90c7f3SNikolay Aleksandrov unsigned long flags; 3481f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3491f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3501f90c7f3SNikolay Aleksandrov #endif 3512756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 3521f90c7f3SNikolay Aleksandrov 3531da177e4SLinus Torvalds /* STP */ 3541da177e4SLinus Torvalds u8 priority; 3551da177e4SLinus Torvalds u8 state; 3561da177e4SLinus Torvalds u16 port_no; 3571da177e4SLinus Torvalds unsigned char topology_change_ack; 3581da177e4SLinus Torvalds unsigned char config_pending; 3591da177e4SLinus Torvalds port_id port_id; 3601da177e4SLinus Torvalds port_id designated_port; 3611da177e4SLinus Torvalds bridge_id designated_root; 3621da177e4SLinus Torvalds bridge_id designated_bridge; 3631da177e4SLinus Torvalds u32 path_cost; 3641da177e4SLinus Torvalds u32 designated_cost; 3650c03150eSstephen hemminger unsigned long designated_age; 3661da177e4SLinus Torvalds 3671da177e4SLinus Torvalds struct timer_list forward_delay_timer; 3681da177e4SLinus Torvalds struct timer_list hold_timer; 3691da177e4SLinus Torvalds struct timer_list message_age_timer; 3701da177e4SLinus Torvalds struct kobject kobj; 3711da177e4SLinus Torvalds struct rcu_head rcu; 3723982d3d2SFischer, Anna 3739632233eSNikolay Aleksandrov struct net_bridge_mcast_port multicast_ctx; 3749632233eSNikolay Aleksandrov 375eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 3769632233eSNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 3779632233eSNikolay Aleksandrov 37889268b05SNikolay Aleksandrov u32 multicast_eht_hosts_limit; 37989268b05SNikolay Aleksandrov u32 multicast_eht_hosts_cnt; 380eb1d1641SHerbert Xu struct hlist_head mglist; 381eb1d1641SHerbert Xu #endif 382e0f43752SSimon Arlott 383e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 384e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 385e0f43752SSimon Arlott #endif 38691d2c34aSHerbert Xu 38791d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 38891d2c34aSHerbert Xu struct netpoll *np; 38991d2c34aSHerbert Xu #endif 3906bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 391f7cf972fSTobias Waldekranz /* Identifier used to group ports that share the same switchdev 392f7cf972fSTobias Waldekranz * hardware domain. 393f7cf972fSTobias Waldekranz */ 394f7cf972fSTobias Waldekranz int hwdom; 3956bc506b4SIdo Schimmel #endif 3965af48b59SNikolay Aleksandrov u16 group_fwd_mask; 3972756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 398de179966SVivien Didelot 399de179966SVivien Didelot struct bridge_stp_xstats stp_xstats; 4001da177e4SLinus Torvalds }; 4011da177e4SLinus Torvalds 402705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 403705e0deaSTyler Hicks 404e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 405f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 406e028e4b8SVlad Yasevich 407b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 408b5ed54e9Sstephen hemminger { 409716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 410b5ed54e9Sstephen hemminger } 411b5ed54e9Sstephen hemminger 4121fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 413b5ed54e9Sstephen hemminger { 41435f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 415ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 416b5ed54e9Sstephen hemminger } 417b5ed54e9Sstephen hemminger 4180baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 4190baa10ffSArkadi Sharshevsky { 42035f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 4210baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 4220baa10ffSArkadi Sharshevsky } 4230baa10ffSArkadi Sharshevsky 424ae75767eSNikolay Aleksandrov enum net_bridge_opts { 425ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 426ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 4278df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 4288df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 4298df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 430be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 43113cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 432675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 433675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 434675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 435675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 436c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 4373341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 4389163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 43970e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 4409c0ec2e7SMike Manning BROPT_VLAN_BRIDGE_BINDING, 441f4b7002aSNikolay Aleksandrov BROPT_MCAST_VLAN_SNOOPING_ENABLED, 442ae75767eSNikolay Aleksandrov }; 443ae75767eSNikolay Aleksandrov 4441f90c7f3SNikolay Aleksandrov struct net_bridge { 4451da177e4SLinus Torvalds spinlock_t lock; 4461f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 44790c628ddSHenrik Bjoernlund struct hlist_head frame_type_list; 4481da177e4SLinus Torvalds struct net_device *dev; 449ae75767eSNikolay Aleksandrov unsigned long options; 4501f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 4511f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 4521f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 4531f90c7f3SNikolay Aleksandrov u16 default_pvid; 4541f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 4551f90c7f3SNikolay Aleksandrov #endif 4561f90c7f3SNikolay Aleksandrov 457eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 45890c628ddSHenrik Bjoernlund struct list_head port_list; 45934666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 460efb6de9bSBernhard Thaler union { 4614adf0af6SSimon Wunderlich struct rtable fake_rtable; 462efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 463efb6de9bSBernhard Thaler }; 4644adf0af6SSimon Wunderlich #endif 465515853ccSstephen hemminger u16 group_fwd_mask; 466f2808d22SToshiaki Makita u16 group_fwd_mask_required; 467515853ccSstephen hemminger 4681da177e4SLinus Torvalds /* STP */ 4691da177e4SLinus Torvalds bridge_id designated_root; 4701da177e4SLinus Torvalds bridge_id bridge_id; 4711f90c7f3SNikolay Aleksandrov unsigned char topology_change; 4721f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 4731f90c7f3SNikolay Aleksandrov u16 root_port; 4741da177e4SLinus Torvalds unsigned long max_age; 4751da177e4SLinus Torvalds unsigned long hello_time; 4761da177e4SLinus Torvalds unsigned long forward_delay; 4771da177e4SLinus Torvalds unsigned long ageing_time; 47834d8acd8SVivien Didelot unsigned long bridge_max_age; 4791da177e4SLinus Torvalds unsigned long bridge_hello_time; 4801da177e4SLinus Torvalds unsigned long bridge_forward_delay; 48134d8acd8SVivien Didelot unsigned long bridge_ageing_time; 48235750b0bSNikolay Aleksandrov u32 root_path_cost; 4831da177e4SLinus Torvalds 484fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 4859cde0708SStephen Hemminger 4869cde0708SStephen Hemminger enum { 4879cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 4889cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 4899cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 4909cde0708SStephen Hemminger } stp_enabled; 4919cde0708SStephen Hemminger 492d3d065c0SNikolay Aleksandrov struct net_bridge_mcast multicast_ctx; 493d3d065c0SNikolay Aleksandrov 494eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 495d3d065c0SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 496eb1d1641SHerbert Xu 497eb1d1641SHerbert Xu u32 hash_max; 498eb1d1641SHerbert Xu 49935750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 500eb1d1641SHerbert Xu 50119e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 502085b53c8SNikolay Aleksandrov struct rhashtable sg_port_tbl; 50319e3a9c9SNikolay Aleksandrov 504e12cec65SNikolay Aleksandrov struct hlist_head mcast_gc_list; 50519e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 506eb1d1641SHerbert Xu 507e12cec65SNikolay Aleksandrov struct work_struct mcast_gc_work; 508eb1d1641SHerbert Xu #endif 509eb1d1641SHerbert Xu 5101da177e4SLinus Torvalds struct timer_list hello_timer; 5111da177e4SLinus Torvalds struct timer_list tcn_timer; 5121da177e4SLinus Torvalds struct timer_list topology_change_timer; 513f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 51443b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 515e028e4b8SVlad Yasevich u32 auto_cnt; 5166bc506b4SIdo Schimmel 5176bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 518f7cf972fSTobias Waldekranz /* Counter used to make sure that hardware domains get unique 519f7cf972fSTobias Waldekranz * identifiers in case a bridge spans multiple switchdev instances. 520f7cf972fSTobias Waldekranz */ 521f7cf972fSTobias Waldekranz int last_hwdom; 522*85826610STobias Waldekranz /* Bit mask of hardware domain numbers in use */ 523*85826610STobias Waldekranz unsigned long busy_hwdoms; 5246bc506b4SIdo Schimmel #endif 525eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 5264b8d7d4cSHoratiu Vultur 5274b8d7d4cSHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 5280169b820SHoratiu Vultur struct hlist_head mrp_list; 5294b8d7d4cSHoratiu Vultur #endif 530f323aa54SHenrik Bjoernlund #if IS_ENABLED(CONFIG_BRIDGE_CFM) 531f323aa54SHenrik Bjoernlund struct hlist_head mep_list; 532f323aa54SHenrik Bjoernlund #endif 5331da177e4SLinus Torvalds }; 5341da177e4SLinus Torvalds 53568b7c895SHerbert Xu struct br_input_skb_cb { 53668b7c895SHerbert Xu struct net_device *brdev; 53793fdd47eSHerbert Xu 5383c171f49SPablo Neira Ayuso u16 frag_max_size; 53932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 540f12064d1SFlorian Westphal u8 igmp; 541f12064d1SFlorian Westphal u8 mrouters_only:1; 54232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 543f12064d1SFlorian Westphal u8 proxyarp_replied:1; 544f12064d1SFlorian Westphal u8 src_port_isolated:1; 54520adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 546f12064d1SFlorian Westphal u8 vlan_filtered:1; 54720adfa1aSVlad Yasevich #endif 548223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 549223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 550223fd0adSFlorian Westphal #endif 5516bc506b4SIdo Schimmel 5526bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 553f7cf972fSTobias Waldekranz /* The switchdev hardware domain from which this packet was received. 554f7cf972fSTobias Waldekranz * If skb->offload_fwd_mark was set, then this packet was already 555f7cf972fSTobias Waldekranz * forwarded by hardware to the other ports in the source hardware 556f7cf972fSTobias Waldekranz * domain, otherwise it wasn't. 557f7cf972fSTobias Waldekranz */ 558f7cf972fSTobias Waldekranz int src_hwdom; 5596bc506b4SIdo Schimmel #endif 56068b7c895SHerbert Xu }; 56168b7c895SHerbert Xu 56268b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 56368b7c895SHerbert Xu 56432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 56532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 56632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 56732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 56832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 56932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 57028a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 57128a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 57228a16c97Sstephen hemminger 57328a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 57428a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 57528a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 57628a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 57728a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 57828a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 57928a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 58028a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 58128a16c97Sstephen hemminger 58228a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 58328a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 58428a16c97Sstephen hemminger 5851da177e4SLinus Torvalds /* called under bridge lock */ 5861da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 5871da177e4SLinus Torvalds { 5881da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 5891da177e4SLinus Torvalds } 5901da177e4SLinus Torvalds 5912594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 5922594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 5932594e906SNikolay Aleksandrov { 5942594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 5952594e906SNikolay Aleksandrov } 5962594e906SNikolay Aleksandrov 5972594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 5982594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 5992594e906SNikolay Aleksandrov { 6002594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 6012594e906SNikolay Aleksandrov } 6022594e906SNikolay Aleksandrov 6036be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 6042594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 6052594e906SNikolay Aleksandrov { 6062594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 6072594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 6082594e906SNikolay Aleksandrov return true; 6092594e906SNikolay Aleksandrov else 6102594e906SNikolay Aleksandrov return false; 6112594e906SNikolay Aleksandrov } 6122594e906SNikolay Aleksandrov 6132594e906SNikolay Aleksandrov return true; 6142594e906SNikolay Aleksandrov } 6152594e906SNikolay Aleksandrov 6165d1fcaf3SNikolay Aleksandrov static inline bool nbp_state_should_learn(const struct net_bridge_port *p) 6175d1fcaf3SNikolay Aleksandrov { 6185d1fcaf3SNikolay Aleksandrov return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; 6195d1fcaf3SNikolay Aleksandrov } 6205d1fcaf3SNikolay Aleksandrov 6218f4cc940SNikolay Aleksandrov static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack) 6225a46facbSNikolay Aleksandrov { 6238f4cc940SNikolay Aleksandrov bool ret = vid > 0 && vid < VLAN_VID_MASK; 6248f4cc940SNikolay Aleksandrov 6258f4cc940SNikolay Aleksandrov if (!ret) 6268f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid"); 6278f4cc940SNikolay Aleksandrov 6288f4cc940SNikolay Aleksandrov return ret; 6295a46facbSNikolay Aleksandrov } 6305a46facbSNikolay Aleksandrov 6315a46facbSNikolay Aleksandrov static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, 6328f4cc940SNikolay Aleksandrov const struct bridge_vlan_info *last, 6338f4cc940SNikolay Aleksandrov struct netlink_ext_ack *extack) 6345a46facbSNikolay Aleksandrov { 6355a46facbSNikolay Aleksandrov /* pvid flag is not allowed in ranges */ 6368f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_PVID) { 6378f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range"); 6385a46facbSNikolay Aleksandrov return false; 6398f4cc940SNikolay Aleksandrov } 6405a46facbSNikolay Aleksandrov 6415a46facbSNikolay Aleksandrov /* when cur is the range end, check if: 6425a46facbSNikolay Aleksandrov * - it has range start flag 6435a46facbSNikolay Aleksandrov * - range ids are invalid (end is equal to or before start) 6445a46facbSNikolay Aleksandrov */ 6455a46facbSNikolay Aleksandrov if (last) { 6468f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { 6478f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one"); 6485a46facbSNikolay Aleksandrov return false; 6498f4cc940SNikolay Aleksandrov } else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) { 6508f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing"); 6518f4cc940SNikolay Aleksandrov return false; 6528f4cc940SNikolay Aleksandrov } else if (cur->vid <= last->vid) { 6538f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); 6548f4cc940SNikolay Aleksandrov return false; 6558f4cc940SNikolay Aleksandrov } 6568f4cc940SNikolay Aleksandrov } 6578f4cc940SNikolay Aleksandrov 6588f4cc940SNikolay Aleksandrov /* check for required range flags */ 6598f4cc940SNikolay Aleksandrov if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 6608f4cc940SNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END))) { 6618f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing"); 6625a46facbSNikolay Aleksandrov return false; 6635a46facbSNikolay Aleksandrov } 6645a46facbSNikolay Aleksandrov 6655a46facbSNikolay Aleksandrov return true; 6665a46facbSNikolay Aleksandrov } 6675a46facbSNikolay Aleksandrov 668f545923bSNikolay Aleksandrov static inline int br_afspec_cmd_to_rtm(int cmd) 669f545923bSNikolay Aleksandrov { 670f545923bSNikolay Aleksandrov switch (cmd) { 671f545923bSNikolay Aleksandrov case RTM_SETLINK: 672f545923bSNikolay Aleksandrov return RTM_NEWVLAN; 673f545923bSNikolay Aleksandrov case RTM_DELLINK: 674f545923bSNikolay Aleksandrov return RTM_DELVLAN; 675f545923bSNikolay Aleksandrov } 676f545923bSNikolay Aleksandrov 677f545923bSNikolay Aleksandrov return 0; 678f545923bSNikolay Aleksandrov } 679f545923bSNikolay Aleksandrov 680ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 681ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 682ae75767eSNikolay Aleksandrov { 683ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 684ae75767eSNikolay Aleksandrov } 685ae75767eSNikolay Aleksandrov 686a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 687a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 688a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 689a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 690a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 691a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 692a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 693a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 694ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 695ae75767eSNikolay Aleksandrov 6961da177e4SLinus Torvalds /* br_device.c */ 697348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 698348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 699348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 700cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 70191d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 70291d2c34aSHerbert Xu struct sk_buff *skb) 70391d2c34aSHerbert Xu { 704f78ed220SEric Dumazet netpoll_send_skb(p->np, skb); 70591d2c34aSHerbert Xu } 70691d2c34aSHerbert Xu 707a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 708348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 70991d2c34aSHerbert Xu #else 7109f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 71191d2c34aSHerbert Xu struct sk_buff *skb) 71291d2c34aSHerbert Xu { 71391d2c34aSHerbert Xu } 71491d2c34aSHerbert Xu 715a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 71691d2c34aSHerbert Xu { 71791d2c34aSHerbert Xu return 0; 71891d2c34aSHerbert Xu } 71991d2c34aSHerbert Xu 72091d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 72191d2c34aSHerbert Xu { 72291d2c34aSHerbert Xu } 723cfb478daSstephen hemminger #endif 7241da177e4SLinus Torvalds 7251da177e4SLinus Torvalds /* br_fdb.c */ 726348662a1SJoe Perches int br_fdb_init(void); 727348662a1SJoe Perches void br_fdb_fini(void); 728eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 729eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 730348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 731424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 732424bb9c9SToshiaki Makita const struct net_bridge_port *p, 733424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 734348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 735348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 736f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 737348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 7381ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 739bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 740bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 741bfd0aeacSNikolay Aleksandrov __u16 vid); 742348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 743348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 744348662a1SJoe Perches unsigned long off); 745348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 746348662a1SJoe Perches const unsigned char *addr, u16 vid); 747348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 748be0c5677SNikolay Aleksandrov const unsigned char *addr, u16 vid, unsigned long flags); 74977162022SJohn Fastabend 750348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 751f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 752348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 75387b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 75487b0984eSPetr Machata struct netlink_ext_ack *extack); 755348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 756d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 75747674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 75847674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 75947674562SRoopa Prabhu struct netlink_ext_ack *extack); 7608db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 7618db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 7623aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 763161d82deSPetr Machata const unsigned char *addr, u16 vid, 764161d82deSPetr Machata bool swdev_notify); 7653aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 766161d82deSPetr Machata const unsigned char *addr, u16 vid, 767161d82deSPetr Machata bool swdev_notify); 7689fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 769e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 7701da177e4SLinus Torvalds 7711da177e4SLinus Torvalds /* br_forward.c */ 7728addd5e7SNikolay Aleksandrov enum br_pkt_type { 7738addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 7748addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 7758addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 7768addd5e7SNikolay Aleksandrov }; 7770c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 778b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 77937b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 7800c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 78137b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 7828addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 7831da177e4SLinus Torvalds 7847d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 7857d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 7867d850abdSNikolay Aleksandrov const struct sk_buff *skb) 7877d850abdSNikolay Aleksandrov { 7887d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 7897d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 7907d850abdSNikolay Aleksandrov } 7917d850abdSNikolay Aleksandrov 7921da177e4SLinus Torvalds /* br_if.c */ 793faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 794348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 795348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 796ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 797ca752be0SDavid Ahern struct netlink_ext_ack *extack); 798348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 799804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 800348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 801c8f44affSMichał Mirosław netdev_features_t features); 802e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 8032796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 8042756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 8051da177e4SLinus Torvalds 8061da177e4SLinus Torvalds /* br_input.c */ 8070c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 8089eb8eff0SVladimir Oltean rx_handler_func_t *br_get_rx_handler(const struct net_device *dev); 8091da177e4SLinus Torvalds 81090c628ddSHenrik Bjoernlund struct br_frame_type { 81190c628ddSHenrik Bjoernlund __be16 type; 81290c628ddSHenrik Bjoernlund int (*frame_handler)(struct net_bridge_port *port, 81390c628ddSHenrik Bjoernlund struct sk_buff *skb); 81490c628ddSHenrik Bjoernlund struct hlist_node list; 81590c628ddSHenrik Bjoernlund }; 81690c628ddSHenrik Bjoernlund 81790c628ddSHenrik Bjoernlund void br_add_frame(struct net_bridge *br, struct br_frame_type *ft); 81890c628ddSHenrik Bjoernlund void br_del_frame(struct net_bridge *br, struct br_frame_type *ft); 81990c628ddSHenrik Bjoernlund 820859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 821859828c0SJiri Pirko { 8229eb8eff0SVladimir Oltean return rcu_dereference(dev->rx_handler) == br_get_rx_handler(dev); 823859828c0SJiri Pirko } 824859828c0SJiri Pirko 8254d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 8264d4fd361SPetr Machata { 8279eb8eff0SVladimir Oltean return rcu_dereference_rtnl(dev->rx_handler) == br_get_rx_handler(dev); 8284d4fd361SPetr Machata } 8294d4fd361SPetr Machata 830859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 831859828c0SJiri Pirko { 832859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 833859828c0SJiri Pirko } 834859828c0SJiri Pirko 8354d4fd361SPetr Machata static inline struct net_bridge_port * 8364d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 8374d4fd361SPetr Machata { 8384d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 8394d4fd361SPetr Machata } 8404d4fd361SPetr Machata 8411da177e4SLinus Torvalds /* br_ioctl.c */ 842348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 843348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 844348662a1SJoe Perches void __user *arg); 8451da177e4SLinus Torvalds 846eb1d1641SHerbert Xu /* br_multicast.c */ 847eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 848f4b7002aSNikolay Aleksandrov int br_multicast_rcv(struct net_bridge_mcast **brmctx, 849f4b7002aSNikolay Aleksandrov struct net_bridge_mcast_port **pmctx, 850f4b7002aSNikolay Aleksandrov struct net_bridge_vlan *vlan, 851fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 852adc47037SNikolay Aleksandrov struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge_mcast *brmctx, 853eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 8541080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 855348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 856348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 857348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 858348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 859851d0a73SJoseph Huang void br_multicast_join_snoopers(struct net_bridge *br); 860851d0a73SJoseph Huang void br_multicast_leave_snoopers(struct net_bridge *br); 861348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 862348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 863e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 864adc47037SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, struct sk_buff *skb, 865adc47037SNikolay Aleksandrov struct net_bridge_mcast *brmctx, 866adc47037SNikolay Aleksandrov bool local_rcv, bool local_orig); 867348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 868348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 869ae1ea84bSFlorian Fainelli int br_multicast_toggle(struct net_bridge *br, unsigned long val, 870ae1ea84bSFlorian Fainelli struct netlink_ext_ack *extack); 871348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 872348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 8735e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 874aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 875aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 876aa2ae3e7SNikolay Aleksandrov #endif 877348662a1SJoe Perches struct net_bridge_mdb_entry * 87819e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 879348662a1SJoe Perches struct net_bridge_mdb_entry * 88019e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 881348662a1SJoe Perches struct net_bridge_port_group * 882348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 883762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 8848b671779SNikolay Aleksandrov unsigned char flags, const unsigned char *src, 8858f8cb77eSNikolay Aleksandrov u8 filter_mode, u8 rt_protocol); 88619e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 88719e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 88881f19838SNikolay Aleksandrov void br_mdb_notify(struct net_device *dev, struct net_bridge_mdb_entry *mp, 88981f19838SNikolay Aleksandrov struct net_bridge_port_group *pg, int type); 8901e9ca456SNikolay Aleksandrov void br_rtr_notify(struct net_device *dev, struct net_bridge_mcast_port *pmctx, 891949f1e39SSatish Ashok int type); 892681590bdSNikolay Aleksandrov void br_multicast_del_pg(struct net_bridge_mdb_entry *mp, 893681590bdSNikolay Aleksandrov struct net_bridge_port_group *pg, 894681590bdSNikolay Aleksandrov struct net_bridge_port_group __rcu **pp); 895adc47037SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, 896adc47037SNikolay Aleksandrov const struct net_bridge_port *p, 897a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 8981080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 899b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 9001080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 9011080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 9021080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 90319e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 90419e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 90558d913a3SNikolay Aleksandrov void br_multicast_host_join(const struct net_bridge_mcast *brmctx, 90658d913a3SNikolay Aleksandrov struct net_bridge_mdb_entry *mp, bool notify); 9071bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 9088266a049SNikolay Aleksandrov void br_multicast_star_g_handle_mode(struct net_bridge_port_group *pg, 9098266a049SNikolay Aleksandrov u8 filter_mode); 9108266a049SNikolay Aleksandrov void br_multicast_sg_add_exclude_ports(struct net_bridge_mdb_entry *star_mp, 9118266a049SNikolay Aleksandrov struct net_bridge_port_group *sg); 912474ddb37SNikolay Aleksandrov struct net_bridge_group_src * 913474ddb37SNikolay Aleksandrov br_multicast_find_group_src(struct net_bridge_port_group *pg, struct br_ip *ip); 914d5a10222SNikolay Aleksandrov void br_multicast_del_group_src(struct net_bridge_group_src *src, 915d5a10222SNikolay Aleksandrov bool fastleave); 916613d61dbSNikolay Aleksandrov void br_multicast_ctx_init(struct net_bridge *br, 917613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 918613d61dbSNikolay Aleksandrov struct net_bridge_mcast *brmctx); 919613d61dbSNikolay Aleksandrov void br_multicast_ctx_deinit(struct net_bridge_mcast *brmctx); 920613d61dbSNikolay Aleksandrov void br_multicast_port_ctx_init(struct net_bridge_port *port, 921613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 922613d61dbSNikolay Aleksandrov struct net_bridge_mcast_port *pmctx); 923613d61dbSNikolay Aleksandrov void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port *pmctx); 9247b54aaafSNikolay Aleksandrov void br_multicast_toggle_one_vlan(struct net_bridge_vlan *vlan, bool on); 925f4b7002aSNikolay Aleksandrov void br_multicast_toggle_vlan(struct net_bridge_vlan *vlan, bool on); 926f4b7002aSNikolay Aleksandrov int br_multicast_toggle_vlan_snooping(struct net_bridge *br, bool on, 927f4b7002aSNikolay Aleksandrov struct netlink_ext_ack *extack); 9289dee572cSNikolay Aleksandrov bool br_multicast_toggle_global_vlan(struct net_bridge_vlan *vlan, bool on); 92985b35269SSridhar Samudrala 930955062b0SNikolay Aleksandrov static inline bool br_group_is_l2(const struct br_ip *group) 931955062b0SNikolay Aleksandrov { 932955062b0SNikolay Aleksandrov return group->proto == 0; 933955062b0SNikolay Aleksandrov } 934955062b0SNikolay Aleksandrov 935cfd56754SCong Wang #define mlock_dereference(X, br) \ 936cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 937cfd56754SCong Wang 93844ebb081SLinus Lüssing static inline struct hlist_node * 939adc47037SNikolay Aleksandrov br_multicast_get_first_rport_node(struct net_bridge_mcast *brmctx, 940adc47037SNikolay Aleksandrov struct sk_buff *skb) 941d3d065c0SNikolay Aleksandrov { 942a3c02e76SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 943a3c02e76SLinus Lüssing if (skb->protocol == htons(ETH_P_IPV6)) 944d3d065c0SNikolay Aleksandrov return rcu_dereference(hlist_first_rcu(&brmctx->ip6_mc_router_list)); 945a3c02e76SLinus Lüssing #endif 946d3d065c0SNikolay Aleksandrov return rcu_dereference(hlist_first_rcu(&brmctx->ip4_mc_router_list)); 94744ebb081SLinus Lüssing } 94844ebb081SLinus Lüssing 94944ebb081SLinus Lüssing static inline struct net_bridge_port * 950d3d065c0SNikolay Aleksandrov br_multicast_rport_from_node_skb(struct hlist_node *rp, struct sk_buff *skb) 951d3d065c0SNikolay Aleksandrov { 9529632233eSNikolay Aleksandrov struct net_bridge_mcast_port *mctx; 9539632233eSNikolay Aleksandrov 954a3c02e76SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 955a3c02e76SLinus Lüssing if (skb->protocol == htons(ETH_P_IPV6)) 9569632233eSNikolay Aleksandrov mctx = hlist_entry_safe(rp, struct net_bridge_mcast_port, 9579632233eSNikolay Aleksandrov ip6_rlist); 9589632233eSNikolay Aleksandrov else 959a3c02e76SLinus Lüssing #endif 9609632233eSNikolay Aleksandrov mctx = hlist_entry_safe(rp, struct net_bridge_mcast_port, 9619632233eSNikolay Aleksandrov ip4_rlist); 9629632233eSNikolay Aleksandrov 9639632233eSNikolay Aleksandrov if (mctx) 9649632233eSNikolay Aleksandrov return mctx->port; 9659632233eSNikolay Aleksandrov else 9669632233eSNikolay Aleksandrov return NULL; 96744ebb081SLinus Lüssing } 96844ebb081SLinus Lüssing 969d3d065c0SNikolay Aleksandrov static inline bool br_ip4_multicast_is_router(struct net_bridge_mcast *brmctx) 97085b35269SSridhar Samudrala { 971d3d065c0SNikolay Aleksandrov return timer_pending(&brmctx->ip4_mc_router_timer); 9721a3065a2SLinus Lüssing } 9731a3065a2SLinus Lüssing 974d3d065c0SNikolay Aleksandrov static inline bool br_ip6_multicast_is_router(struct net_bridge_mcast *brmctx) 9751a3065a2SLinus Lüssing { 9761a3065a2SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 977d3d065c0SNikolay Aleksandrov return timer_pending(&brmctx->ip6_mc_router_timer); 9781a3065a2SLinus Lüssing #else 9791a3065a2SLinus Lüssing return false; 9801a3065a2SLinus Lüssing #endif 9811a3065a2SLinus Lüssing } 9821a3065a2SLinus Lüssing 9831a3065a2SLinus Lüssing static inline bool 984adc47037SNikolay Aleksandrov br_multicast_is_router(struct net_bridge_mcast *brmctx, struct sk_buff *skb) 9851a3065a2SLinus Lüssing { 986d3d065c0SNikolay Aleksandrov switch (brmctx->multicast_router) { 9871a3065a2SLinus Lüssing case MDB_RTR_TYPE_PERM: 9881a3065a2SLinus Lüssing return true; 9891a3065a2SLinus Lüssing case MDB_RTR_TYPE_TEMP_QUERY: 9901a3065a2SLinus Lüssing if (skb) { 9911a3065a2SLinus Lüssing if (skb->protocol == htons(ETH_P_IP)) 992d3d065c0SNikolay Aleksandrov return br_ip4_multicast_is_router(brmctx); 9931a3065a2SLinus Lüssing else if (skb->protocol == htons(ETH_P_IPV6)) 994d3d065c0SNikolay Aleksandrov return br_ip6_multicast_is_router(brmctx); 9951a3065a2SLinus Lüssing } else { 996d3d065c0SNikolay Aleksandrov return br_ip4_multicast_is_router(brmctx) || 997d3d065c0SNikolay Aleksandrov br_ip6_multicast_is_router(brmctx); 9981a3065a2SLinus Lüssing } 9991a3065a2SLinus Lüssing fallthrough; 10001a3065a2SLinus Lüssing default: 10011a3065a2SLinus Lüssing return false; 10021a3065a2SLinus Lüssing } 100385b35269SSridhar Samudrala } 1004b00589afSLinus Lüssing 1005cc0fdd80SLinus Lüssing static inline bool 1006adc47037SNikolay Aleksandrov __br_multicast_querier_exists(struct net_bridge_mcast *brmctx, 10070888d5f3Sdaniel struct bridge_mcast_other_query *querier, 10080888d5f3Sdaniel const bool is_ipv6) 1009b00589afSLinus Lüssing { 10100888d5f3Sdaniel bool own_querier_enabled; 10110888d5f3Sdaniel 1012adc47037SNikolay Aleksandrov if (br_opt_get(brmctx->br, BROPT_MULTICAST_QUERIER)) { 1013adc47037SNikolay Aleksandrov if (is_ipv6 && !br_opt_get(brmctx->br, BROPT_HAS_IPV6_ADDR)) 10140888d5f3Sdaniel own_querier_enabled = false; 10150888d5f3Sdaniel else 10160888d5f3Sdaniel own_querier_enabled = true; 10170888d5f3Sdaniel } else { 10180888d5f3Sdaniel own_querier_enabled = false; 10190888d5f3Sdaniel } 10200888d5f3Sdaniel 1021cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 10220888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 1023cc0fdd80SLinus Lüssing } 1024cc0fdd80SLinus Lüssing 1025adc47037SNikolay Aleksandrov static inline bool br_multicast_querier_exists(struct net_bridge_mcast *brmctx, 1026955062b0SNikolay Aleksandrov struct ethhdr *eth, 1027955062b0SNikolay Aleksandrov const struct net_bridge_mdb_entry *mdb) 1028cc0fdd80SLinus Lüssing { 1029cc0fdd80SLinus Lüssing switch (eth->h_proto) { 1030cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 1031adc47037SNikolay Aleksandrov return __br_multicast_querier_exists(brmctx, 1032adc47037SNikolay Aleksandrov &brmctx->ip4_other_query, false); 1033cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 1034cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 1035adc47037SNikolay Aleksandrov return __br_multicast_querier_exists(brmctx, 1036adc47037SNikolay Aleksandrov &brmctx->ip6_other_query, true); 1037cc0fdd80SLinus Lüssing #endif 1038cc0fdd80SLinus Lüssing default: 1039955062b0SNikolay Aleksandrov return !!mdb && br_group_is_l2(&mdb->addr); 1040cc0fdd80SLinus Lüssing } 1041b00589afSLinus Lüssing } 10421080ab95SNikolay Aleksandrov 104388d4bd18SNikolay Aleksandrov static inline bool br_multicast_is_star_g(const struct br_ip *ip) 104488d4bd18SNikolay Aleksandrov { 104588d4bd18SNikolay Aleksandrov switch (ip->proto) { 104688d4bd18SNikolay Aleksandrov case htons(ETH_P_IP): 104788d4bd18SNikolay Aleksandrov return ipv4_is_zeronet(ip->src.ip4); 104888d4bd18SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 104988d4bd18SNikolay Aleksandrov case htons(ETH_P_IPV6): 105088d4bd18SNikolay Aleksandrov return ipv6_addr_any(&ip->src.ip6); 105188d4bd18SNikolay Aleksandrov #endif 105288d4bd18SNikolay Aleksandrov default: 105388d4bd18SNikolay Aleksandrov return false; 105488d4bd18SNikolay Aleksandrov } 105588d4bd18SNikolay Aleksandrov } 105688d4bd18SNikolay Aleksandrov 1057adc47037SNikolay Aleksandrov static inline bool 1058adc47037SNikolay Aleksandrov br_multicast_should_handle_mode(const struct net_bridge_mcast *brmctx, 10598266a049SNikolay Aleksandrov __be16 proto) 10608266a049SNikolay Aleksandrov { 10618266a049SNikolay Aleksandrov switch (proto) { 10628266a049SNikolay Aleksandrov case htons(ETH_P_IP): 1063adc47037SNikolay Aleksandrov return !!(brmctx->multicast_igmp_version == 3); 10648266a049SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 10658266a049SNikolay Aleksandrov case htons(ETH_P_IPV6): 1066adc47037SNikolay Aleksandrov return !!(brmctx->multicast_mld_version == 2); 10678266a049SNikolay Aleksandrov #endif 10688266a049SNikolay Aleksandrov default: 10698266a049SNikolay Aleksandrov return false; 10708266a049SNikolay Aleksandrov } 10718266a049SNikolay Aleksandrov } 10728266a049SNikolay Aleksandrov 10731080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 10741080ab95SNikolay Aleksandrov { 10751080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 10761080ab95SNikolay Aleksandrov } 107742c11ccfSNikolay Aleksandrov 1078adc47037SNikolay Aleksandrov static inline unsigned long br_multicast_lmqt(const struct net_bridge_mcast *brmctx) 107942c11ccfSNikolay Aleksandrov { 1080adc47037SNikolay Aleksandrov return brmctx->multicast_last_member_interval * 1081adc47037SNikolay Aleksandrov brmctx->multicast_last_member_count; 108242c11ccfSNikolay Aleksandrov } 10830436862eSNikolay Aleksandrov 1084adc47037SNikolay Aleksandrov static inline unsigned long br_multicast_gmi(const struct net_bridge_mcast *brmctx) 10850436862eSNikolay Aleksandrov { 10860436862eSNikolay Aleksandrov /* use the RFC default of 2 for QRV */ 1087adc47037SNikolay Aleksandrov return 2 * brmctx->multicast_query_interval + 1088adc47037SNikolay Aleksandrov brmctx->multicast_query_response_interval; 10890436862eSNikolay Aleksandrov } 10907b54aaafSNikolay Aleksandrov 10917b54aaafSNikolay Aleksandrov static inline bool 10927b54aaafSNikolay Aleksandrov br_multicast_ctx_is_vlan(const struct net_bridge_mcast *brmctx) 10937b54aaafSNikolay Aleksandrov { 10947b54aaafSNikolay Aleksandrov return !!brmctx->vlan; 10957b54aaafSNikolay Aleksandrov } 10967b54aaafSNikolay Aleksandrov 10977b54aaafSNikolay Aleksandrov static inline bool 10987b54aaafSNikolay Aleksandrov br_multicast_port_ctx_is_vlan(const struct net_bridge_mcast_port *pmctx) 10997b54aaafSNikolay Aleksandrov { 11007b54aaafSNikolay Aleksandrov return !!pmctx->vlan; 11017b54aaafSNikolay Aleksandrov } 11027b54aaafSNikolay Aleksandrov 11037b54aaafSNikolay Aleksandrov static inline struct net_bridge_mcast * 11047b54aaafSNikolay Aleksandrov br_multicast_port_ctx_get_global(const struct net_bridge_mcast_port *pmctx) 11057b54aaafSNikolay Aleksandrov { 11067b54aaafSNikolay Aleksandrov if (!br_multicast_port_ctx_is_vlan(pmctx)) 11077b54aaafSNikolay Aleksandrov return &pmctx->port->br->multicast_ctx; 11087b54aaafSNikolay Aleksandrov else 11097b54aaafSNikolay Aleksandrov return &pmctx->vlan->brvlan->br_mcast_ctx; 11107b54aaafSNikolay Aleksandrov } 11117b54aaafSNikolay Aleksandrov 11127b54aaafSNikolay Aleksandrov static inline bool 11137b54aaafSNikolay Aleksandrov br_multicast_ctx_vlan_global_disabled(const struct net_bridge_mcast *brmctx) 11147b54aaafSNikolay Aleksandrov { 1115f4b7002aSNikolay Aleksandrov return br_opt_get(brmctx->br, BROPT_MCAST_VLAN_SNOOPING_ENABLED) && 1116f4b7002aSNikolay Aleksandrov br_multicast_ctx_is_vlan(brmctx) && 11177b54aaafSNikolay Aleksandrov !(brmctx->vlan->priv_flags & BR_VLFLAG_GLOBAL_MCAST_ENABLED); 11187b54aaafSNikolay Aleksandrov } 11197b54aaafSNikolay Aleksandrov 11207b54aaafSNikolay Aleksandrov static inline bool 11217b54aaafSNikolay Aleksandrov br_multicast_ctx_vlan_disabled(const struct net_bridge_mcast *brmctx) 11227b54aaafSNikolay Aleksandrov { 11237b54aaafSNikolay Aleksandrov return br_multicast_ctx_is_vlan(brmctx) && 11247b54aaafSNikolay Aleksandrov !(brmctx->vlan->priv_flags & BR_VLFLAG_MCAST_ENABLED); 11257b54aaafSNikolay Aleksandrov } 11267b54aaafSNikolay Aleksandrov 11277b54aaafSNikolay Aleksandrov static inline bool 11287b54aaafSNikolay Aleksandrov br_multicast_port_ctx_vlan_disabled(const struct net_bridge_mcast_port *pmctx) 11297b54aaafSNikolay Aleksandrov { 11307b54aaafSNikolay Aleksandrov return br_multicast_port_ctx_is_vlan(pmctx) && 11317b54aaafSNikolay Aleksandrov !(pmctx->vlan->priv_flags & BR_VLFLAG_MCAST_ENABLED); 11327b54aaafSNikolay Aleksandrov } 11334cdd0d10SNikolay Aleksandrov 11344cdd0d10SNikolay Aleksandrov static inline bool 11354cdd0d10SNikolay Aleksandrov br_multicast_port_ctx_state_disabled(const struct net_bridge_mcast_port *pmctx) 11364cdd0d10SNikolay Aleksandrov { 11374cdd0d10SNikolay Aleksandrov return pmctx->port->state == BR_STATE_DISABLED || 11384cdd0d10SNikolay Aleksandrov (br_multicast_port_ctx_is_vlan(pmctx) && 11394cdd0d10SNikolay Aleksandrov (br_multicast_port_ctx_vlan_disabled(pmctx) || 11404cdd0d10SNikolay Aleksandrov pmctx->vlan->state == BR_STATE_DISABLED)); 11414cdd0d10SNikolay Aleksandrov } 11424cdd0d10SNikolay Aleksandrov 11434cdd0d10SNikolay Aleksandrov static inline bool 11444cdd0d10SNikolay Aleksandrov br_multicast_port_ctx_state_stopped(const struct net_bridge_mcast_port *pmctx) 11454cdd0d10SNikolay Aleksandrov { 11464cdd0d10SNikolay Aleksandrov return br_multicast_port_ctx_state_disabled(pmctx) || 11474cdd0d10SNikolay Aleksandrov pmctx->port->state == BR_STATE_BLOCKING || 11484cdd0d10SNikolay Aleksandrov (br_multicast_port_ctx_is_vlan(pmctx) && 11494cdd0d10SNikolay Aleksandrov pmctx->vlan->state == BR_STATE_BLOCKING); 11504cdd0d10SNikolay Aleksandrov } 1151eb1d1641SHerbert Xu #else 1152f4b7002aSNikolay Aleksandrov static inline int br_multicast_rcv(struct net_bridge_mcast **brmctx, 1153f4b7002aSNikolay Aleksandrov struct net_bridge_mcast_port **pmctx, 1154f4b7002aSNikolay Aleksandrov struct net_bridge_vlan *vlan, 115506499098SVlad Yasevich struct sk_buff *skb, 115606499098SVlad Yasevich u16 vid) 1157eb1d1641SHerbert Xu { 1158eb1d1641SHerbert Xu return 0; 1159eb1d1641SHerbert Xu } 1160eb1d1641SHerbert Xu 1161adc47037SNikolay Aleksandrov static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge_mcast *brmctx, 1162fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 1163eb1d1641SHerbert Xu { 1164eb1d1641SHerbert Xu return NULL; 1165eb1d1641SHerbert Xu } 1166eb1d1641SHerbert Xu 11671080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 1168eb1d1641SHerbert Xu { 11691080ab95SNikolay Aleksandrov return 0; 1170eb1d1641SHerbert Xu } 1171eb1d1641SHerbert Xu 1172eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 1173eb1d1641SHerbert Xu { 1174eb1d1641SHerbert Xu } 1175eb1d1641SHerbert Xu 1176eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 1177eb1d1641SHerbert Xu { 1178eb1d1641SHerbert Xu } 1179eb1d1641SHerbert Xu 1180eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 1181eb1d1641SHerbert Xu { 1182eb1d1641SHerbert Xu } 1183eb1d1641SHerbert Xu 1184eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 1185eb1d1641SHerbert Xu { 1186eb1d1641SHerbert Xu } 1187eb1d1641SHerbert Xu 1188851d0a73SJoseph Huang static inline void br_multicast_join_snoopers(struct net_bridge *br) 1189851d0a73SJoseph Huang { 1190851d0a73SJoseph Huang } 1191851d0a73SJoseph Huang 1192851d0a73SJoseph Huang static inline void br_multicast_leave_snoopers(struct net_bridge *br) 1193851d0a73SJoseph Huang { 1194851d0a73SJoseph Huang } 1195851d0a73SJoseph Huang 1196eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 1197eb1d1641SHerbert Xu { 1198eb1d1641SHerbert Xu } 1199eb1d1641SHerbert Xu 1200eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 1201eb1d1641SHerbert Xu { 1202eb1d1641SHerbert Xu } 12035cb5e947SHerbert Xu 1204a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 1205a7ce45a7SNikolay Aleksandrov { 1206a7ce45a7SNikolay Aleksandrov } 1207a7ce45a7SNikolay Aleksandrov 120837b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 120937b090e6SNikolay Aleksandrov struct sk_buff *skb, 1210adc47037SNikolay Aleksandrov struct net_bridge_mcast *brmctx, 121137b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 12125cb5e947SHerbert Xu { 12135cb5e947SHerbert Xu } 12145cb5e947SHerbert Xu 1215adc47037SNikolay Aleksandrov static inline bool br_multicast_is_router(struct net_bridge_mcast *brmctx, 1216bbc6f2ccSNikolay Aleksandrov struct sk_buff *skb) 1217eb1d1641SHerbert Xu { 121803aaa9e2SGustavo A. R. Silva return false; 1219eb1d1641SHerbert Xu } 122037b090e6SNikolay Aleksandrov 1221adc47037SNikolay Aleksandrov static inline bool br_multicast_querier_exists(struct net_bridge_mcast *brmctx, 1222c43fd36fSVladimir Oltean struct ethhdr *eth, 1223c43fd36fSVladimir Oltean const struct net_bridge_mdb_entry *mdb) 1224b00589afSLinus Lüssing { 1225b00589afSLinus Lüssing return false; 1226b00589afSLinus Lüssing } 122737b090e6SNikolay Aleksandrov 1228fdb184d1SRami Rosen static inline void br_mdb_init(void) 1229fdb184d1SRami Rosen { 1230fdb184d1SRami Rosen } 123137b090e6SNikolay Aleksandrov 1232fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 1233fdb184d1SRami Rosen { 1234fdb184d1SRami Rosen } 12351080ab95SNikolay Aleksandrov 123619e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 123719e3a9c9SNikolay Aleksandrov { 123819e3a9c9SNikolay Aleksandrov return 0; 123919e3a9c9SNikolay Aleksandrov } 124019e3a9c9SNikolay Aleksandrov 124119e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 124219e3a9c9SNikolay Aleksandrov { 124319e3a9c9SNikolay Aleksandrov } 124419e3a9c9SNikolay Aleksandrov 12451080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 12461080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 1247a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 1248a65056ecSNikolay Aleksandrov u8 type, u8 dir) 12491080ab95SNikolay Aleksandrov { 12501080ab95SNikolay Aleksandrov } 12511080ab95SNikolay Aleksandrov 12521080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 12531080ab95SNikolay Aleksandrov { 12541080ab95SNikolay Aleksandrov return 0; 12551080ab95SNikolay Aleksandrov } 12561080ab95SNikolay Aleksandrov 1257b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 1258b6fe0440SIdo Schimmel { 1259b6fe0440SIdo Schimmel } 1260b6fe0440SIdo Schimmel 12611080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 12621080ab95SNikolay Aleksandrov { 12631080ab95SNikolay Aleksandrov return 0; 12641080ab95SNikolay Aleksandrov } 1265613d61dbSNikolay Aleksandrov 1266613d61dbSNikolay Aleksandrov static inline void br_multicast_ctx_init(struct net_bridge *br, 1267613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 1268613d61dbSNikolay Aleksandrov struct net_bridge_mcast *brmctx) 1269613d61dbSNikolay Aleksandrov { 1270613d61dbSNikolay Aleksandrov } 1271613d61dbSNikolay Aleksandrov 1272613d61dbSNikolay Aleksandrov static inline void br_multicast_ctx_deinit(struct net_bridge_mcast *brmctx) 1273613d61dbSNikolay Aleksandrov { 1274613d61dbSNikolay Aleksandrov } 1275613d61dbSNikolay Aleksandrov 1276613d61dbSNikolay Aleksandrov static inline void br_multicast_port_ctx_init(struct net_bridge_port *port, 1277613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 1278613d61dbSNikolay Aleksandrov struct net_bridge_mcast_port *pmctx) 1279613d61dbSNikolay Aleksandrov { 1280613d61dbSNikolay Aleksandrov } 1281613d61dbSNikolay Aleksandrov 1282613d61dbSNikolay Aleksandrov static inline void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port *pmctx) 1283613d61dbSNikolay Aleksandrov { 1284613d61dbSNikolay Aleksandrov } 12857b54aaafSNikolay Aleksandrov 12867b54aaafSNikolay Aleksandrov static inline void br_multicast_toggle_one_vlan(struct net_bridge_vlan *vlan, 12877b54aaafSNikolay Aleksandrov bool on) 12887b54aaafSNikolay Aleksandrov { 12897b54aaafSNikolay Aleksandrov } 1290f4b7002aSNikolay Aleksandrov 1291f4b7002aSNikolay Aleksandrov static inline void br_multicast_toggle_vlan(struct net_bridge_vlan *vlan, 1292f4b7002aSNikolay Aleksandrov bool on) 1293f4b7002aSNikolay Aleksandrov { 1294f4b7002aSNikolay Aleksandrov } 1295f4b7002aSNikolay Aleksandrov 1296f4b7002aSNikolay Aleksandrov static inline int br_multicast_toggle_vlan_snooping(struct net_bridge *br, 1297f4b7002aSNikolay Aleksandrov bool on, 1298f4b7002aSNikolay Aleksandrov struct netlink_ext_ack *extack) 1299f4b7002aSNikolay Aleksandrov { 1300f4b7002aSNikolay Aleksandrov return -EOPNOTSUPP; 1301f4b7002aSNikolay Aleksandrov } 13029dee572cSNikolay Aleksandrov 13039dee572cSNikolay Aleksandrov static inline bool br_multicast_toggle_global_vlan(struct net_bridge_vlan *vlan, 13049dee572cSNikolay Aleksandrov bool on) 13059dee572cSNikolay Aleksandrov { 13069dee572cSNikolay Aleksandrov return false; 13079dee572cSNikolay Aleksandrov } 130885b35269SSridhar Samudrala #endif 1309eb1d1641SHerbert Xu 1310243a2e63SVlad Yasevich /* br_vlan.c */ 1311243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 131277751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 131377751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 1314f4b7002aSNikolay Aleksandrov u16 *vid, u8 *state, 1315f4b7002aSNikolay Aleksandrov struct net_bridge_vlan **vlan); 131677751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 131785f46c6bSVlad Yasevich const struct sk_buff *skb); 1318e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 1319348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 132011538d03SRoopa Prabhu const struct net_bridge_port *port, 13212594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 132278851988SVlad Yasevich struct sk_buff *skb); 1323f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1324169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1325348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 1326348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 13272594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 1328204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 13299e781401SVladimir Oltean int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val, 13309e781401SVladimir Oltean struct netlink_ext_ack *extack); 1331dcbdf135SVladimir Oltean int __br_vlan_set_proto(struct net_bridge *br, __be16 proto, 1332dcbdf135SVladimir Oltean struct netlink_ext_ack *extack); 13339e781401SVladimir Oltean int br_vlan_set_proto(struct net_bridge *br, unsigned long val, 13349e781401SVladimir Oltean struct netlink_ext_ack *extack); 13356dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 13369163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 13375be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 13389e781401SVladimir Oltean int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val, 13399e781401SVladimir Oltean struct netlink_ext_ack *extack); 1340169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 1341169327d5SPetr Machata struct netlink_ext_ack *extack); 1342f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1343169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1344348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 1345348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 1346169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 13472594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 1348a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 1349281cc284SHeiner Kallweit struct pcpu_sw_netstats *stats); 13509c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 1351091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 13529c0ec2e7SMike Manning void *ptr); 13538dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void); 13548dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void); 1355cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 1356cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1357cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1358cf5bddb9SNikolay Aleksandrov int cmd); 1359a5d29ae2SNikolay Aleksandrov bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1360a5d29ae2SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 1361a37b85c9SVlad Yasevich 1362bcf2766bSFelix Fietkau void br_vlan_fill_forward_path_pvid(struct net_bridge *br, 1363bcf2766bSFelix Fietkau struct net_device_path_ctx *ctx, 1364bcf2766bSFelix Fietkau struct net_device_path *path); 1365bcf2766bSFelix Fietkau int br_vlan_fill_forward_path_mode(struct net_bridge *br, 1366bcf2766bSFelix Fietkau struct net_bridge_port *dst, 1367bcf2766bSFelix Fietkau struct net_device_path *path); 1368bcf2766bSFelix Fietkau 13692594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 1370a37b85c9SVlad Yasevich const struct net_bridge *br) 1371a37b85c9SVlad Yasevich { 1372907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 1373a37b85c9SVlad Yasevich } 1374a37b85c9SVlad Yasevich 13752594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 1376a37b85c9SVlad Yasevich const struct net_bridge_port *p) 1377a37b85c9SVlad Yasevich { 1378907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 1379907b1e6eSNikolay Aleksandrov } 1380907b1e6eSNikolay Aleksandrov 1381907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1382907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1383907b1e6eSNikolay Aleksandrov { 1384907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 1385907b1e6eSNikolay Aleksandrov } 1386907b1e6eSNikolay Aleksandrov 1387907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1388907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1389907b1e6eSNikolay Aleksandrov { 1390907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 1391a37b85c9SVlad Yasevich } 1392a37b85c9SVlad Yasevich 1393a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 1394a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 1395a37b85c9SVlad Yasevich */ 1396a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 1397a37b85c9SVlad Yasevich { 1398a37b85c9SVlad Yasevich int err = 0; 1399a37b85c9SVlad Yasevich 14002594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 14015978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 14022594e906SNikolay Aleksandrov } else { 1403a37b85c9SVlad Yasevich *vid = 0; 1404a37b85c9SVlad Yasevich err = -EINVAL; 1405a37b85c9SVlad Yasevich } 1406a37b85c9SVlad Yasevich 1407a37b85c9SVlad Yasevich return err; 1408a37b85c9SVlad Yasevich } 140978851988SVlad Yasevich 141077751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 141178851988SVlad Yasevich { 141277751ee8SNikolay Aleksandrov if (!vg) 14135be5a2dfSVlad Yasevich return 0; 14145be5a2dfSVlad Yasevich 141578851988SVlad Yasevich smp_rmb(); 141677751ee8SNikolay Aleksandrov return vg->pvid; 141778851988SVlad Yasevich } 141878851988SVlad Yasevich 14198dcea187SNikolay Aleksandrov static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) 14208dcea187SNikolay Aleksandrov { 14218dcea187SNikolay Aleksandrov return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags; 14228dcea187SNikolay Aleksandrov } 1423243a2e63SVlad Yasevich #else 142477751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 142577751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 14262594e906SNikolay Aleksandrov struct sk_buff *skb, 1427f4b7002aSNikolay Aleksandrov u16 *vid, u8 *state, 1428f4b7002aSNikolay Aleksandrov struct net_bridge_vlan **vlan) 1429f4b7002aSNikolay Aleksandrov 14302594e906SNikolay Aleksandrov { 1431f4b7002aSNikolay Aleksandrov *vlan = NULL; 14322594e906SNikolay Aleksandrov return true; 14332594e906SNikolay Aleksandrov } 14342594e906SNikolay Aleksandrov 14352594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 143685f46c6bSVlad Yasevich const struct sk_buff *skb) 143785f46c6bSVlad Yasevich { 143885f46c6bSVlad Yasevich return true; 143985f46c6bSVlad Yasevich } 144085f46c6bSVlad Yasevich 1441e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 1442e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 1443e0d7968aSToshiaki Makita { 1444e0d7968aSToshiaki Makita return true; 1445e0d7968aSToshiaki Makita } 1446e0d7968aSToshiaki Makita 144778851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 144811538d03SRoopa Prabhu const struct net_bridge_port *port, 14492594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 145078851988SVlad Yasevich struct sk_buff *skb) 145178851988SVlad Yasevich { 145278851988SVlad Yasevich return skb; 145378851988SVlad Yasevich } 145478851988SVlad Yasevich 1455f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1456169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1457243a2e63SVlad Yasevich { 1458f418af63SNikolay Aleksandrov *changed = false; 1459243a2e63SVlad Yasevich return -EOPNOTSUPP; 1460243a2e63SVlad Yasevich } 1461243a2e63SVlad Yasevich 1462243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 1463243a2e63SVlad Yasevich { 1464243a2e63SVlad Yasevich return -EOPNOTSUPP; 1465243a2e63SVlad Yasevich } 1466243a2e63SVlad Yasevich 1467243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1468243a2e63SVlad Yasevich { 1469243a2e63SVlad Yasevich } 1470243a2e63SVlad Yasevich 1471204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1472204177f3SToshiaki Makita { 1473204177f3SToshiaki Makita } 1474204177f3SToshiaki Makita 14755be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 14768580e211SToshiaki Makita { 14775be5a2dfSVlad Yasevich return 0; 14788580e211SToshiaki Makita } 14798580e211SToshiaki Makita 1480f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1481169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1482243a2e63SVlad Yasevich { 1483f418af63SNikolay Aleksandrov *changed = false; 1484243a2e63SVlad Yasevich return -EOPNOTSUPP; 1485243a2e63SVlad Yasevich } 1486243a2e63SVlad Yasevich 1487243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1488243a2e63SVlad Yasevich { 1489243a2e63SVlad Yasevich return -EOPNOTSUPP; 1490243a2e63SVlad Yasevich } 1491243a2e63SVlad Yasevich 1492243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1493243a2e63SVlad Yasevich { 1494243a2e63SVlad Yasevich } 1495243a2e63SVlad Yasevich 14962594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 14972594e906SNikolay Aleksandrov u16 vid) 1498a37b85c9SVlad Yasevich { 1499a37b85c9SVlad Yasevich return NULL; 1500a37b85c9SVlad Yasevich } 1501bc9a25d2SVlad Yasevich 1502169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1503169327d5SPetr Machata struct netlink_ext_ack *extack) 15045be5a2dfSVlad Yasevich { 15055be5a2dfSVlad Yasevich return 0; 15065be5a2dfSVlad Yasevich } 15075be5a2dfSVlad Yasevich 150878851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1509a37b85c9SVlad Yasevich { 1510a37b85c9SVlad Yasevich return 0; 1511a37b85c9SVlad Yasevich } 15122594e906SNikolay Aleksandrov 151377751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 151478851988SVlad Yasevich { 15153df6bf45SVlad Yasevich return 0; 151678851988SVlad Yasevich } 15172796d0c6SVlad Yasevich 15187a572964SVladimir Oltean static inline int br_vlan_filter_toggle(struct net_bridge *br, 1519c97f47e3SVladimir Oltean unsigned long val, 1520c97f47e3SVladimir Oltean struct netlink_ext_ack *extack) 1521a7854037SNikolay Aleksandrov { 1522a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1523a7854037SNikolay Aleksandrov } 15242594e906SNikolay Aleksandrov 15252594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 15262594e906SNikolay Aleksandrov u32 filter_mask) 15272594e906SNikolay Aleksandrov { 15282594e906SNikolay Aleksandrov return 0; 15292594e906SNikolay Aleksandrov } 15302594e906SNikolay Aleksandrov 1531bcf2766bSFelix Fietkau static inline void br_vlan_fill_forward_path_pvid(struct net_bridge *br, 1532bcf2766bSFelix Fietkau struct net_device_path_ctx *ctx, 1533bcf2766bSFelix Fietkau struct net_device_path *path) 1534bcf2766bSFelix Fietkau { 1535bcf2766bSFelix Fietkau } 1536bcf2766bSFelix Fietkau 1537bcf2766bSFelix Fietkau static inline int br_vlan_fill_forward_path_mode(struct net_bridge *br, 1538bcf2766bSFelix Fietkau struct net_bridge_port *dst, 1539bcf2766bSFelix Fietkau struct net_device_path *path) 1540bcf2766bSFelix Fietkau { 1541bcf2766bSFelix Fietkau return 0; 1542bcf2766bSFelix Fietkau } 1543bcf2766bSFelix Fietkau 15442594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 15452594e906SNikolay Aleksandrov const struct net_bridge *br) 15462594e906SNikolay Aleksandrov { 15472594e906SNikolay Aleksandrov return NULL; 15482594e906SNikolay Aleksandrov } 15492594e906SNikolay Aleksandrov 15502594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 15512594e906SNikolay Aleksandrov const struct net_bridge_port *p) 15522594e906SNikolay Aleksandrov { 15532594e906SNikolay Aleksandrov return NULL; 15542594e906SNikolay Aleksandrov } 1555907b1e6eSNikolay Aleksandrov 1556907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1557907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1558907b1e6eSNikolay Aleksandrov { 1559907b1e6eSNikolay Aleksandrov return NULL; 1560907b1e6eSNikolay Aleksandrov } 1561907b1e6eSNikolay Aleksandrov 1562907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1563907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1564907b1e6eSNikolay Aleksandrov { 1565907b1e6eSNikolay Aleksandrov return NULL; 1566907b1e6eSNikolay Aleksandrov } 1567a60c0903SNikolay Aleksandrov 1568a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1569281cc284SHeiner Kallweit struct pcpu_sw_netstats *stats) 1570a60c0903SNikolay Aleksandrov { 1571a60c0903SNikolay Aleksandrov } 15729c0ec2e7SMike Manning 15739c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 15749c0ec2e7SMike Manning unsigned long event) 15759c0ec2e7SMike Manning { 15769c0ec2e7SMike Manning } 15779c0ec2e7SMike Manning 1578091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 15799c0ec2e7SMike Manning unsigned long event, void *ptr) 15809c0ec2e7SMike Manning { 1581091adf9bSNikolay Aleksandrov return 0; 15829c0ec2e7SMike Manning } 15838dcea187SNikolay Aleksandrov 15848dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_init(void) 15858dcea187SNikolay Aleksandrov { 15868dcea187SNikolay Aleksandrov } 15878dcea187SNikolay Aleksandrov 15888dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_uninit(void) 15898dcea187SNikolay Aleksandrov { 15908dcea187SNikolay Aleksandrov } 1591cf5bddb9SNikolay Aleksandrov 1592cf5bddb9SNikolay Aleksandrov static inline void br_vlan_notify(const struct net_bridge *br, 1593cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1594cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1595cf5bddb9SNikolay Aleksandrov int cmd) 1596cf5bddb9SNikolay Aleksandrov { 1597cf5bddb9SNikolay Aleksandrov } 1598528ae84aSNikolay Aleksandrov 1599528ae84aSNikolay Aleksandrov static inline bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1600528ae84aSNikolay Aleksandrov const struct net_bridge_vlan *range_end) 1601528ae84aSNikolay Aleksandrov { 1602528ae84aSNikolay Aleksandrov return true; 1603528ae84aSNikolay Aleksandrov } 1604243a2e63SVlad Yasevich #endif 1605243a2e63SVlad Yasevich 16067a53e718SNikolay Aleksandrov /* br_vlan_options.c */ 16077a53e718SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 160899f7c5e0SNikolay Aleksandrov bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, 160999f7c5e0SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 16107a53e718SNikolay Aleksandrov bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v); 16117a53e718SNikolay Aleksandrov size_t br_vlan_opts_nl_size(void); 1612a5d29ae2SNikolay Aleksandrov int br_vlan_process_options(const struct net_bridge *br, 1613a5d29ae2SNikolay Aleksandrov const struct net_bridge_port *p, 1614a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_start, 1615a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_end, 1616a5d29ae2SNikolay Aleksandrov struct nlattr **tb, 1617a5d29ae2SNikolay Aleksandrov struct netlink_ext_ack *extack); 161847ecd2dbSNikolay Aleksandrov int br_vlan_rtm_process_global_options(struct net_device *dev, 161947ecd2dbSNikolay Aleksandrov const struct nlattr *attr, 162047ecd2dbSNikolay Aleksandrov int cmd, 162147ecd2dbSNikolay Aleksandrov struct netlink_ext_ack *extack); 1622743a53d9SNikolay Aleksandrov bool br_vlan_global_opts_can_enter_range(const struct net_bridge_vlan *v_curr, 1623743a53d9SNikolay Aleksandrov const struct net_bridge_vlan *r_end); 1624743a53d9SNikolay Aleksandrov bool br_vlan_global_opts_fill(struct sk_buff *skb, u16 vid, u16 vid_range, 1625743a53d9SNikolay Aleksandrov const struct net_bridge_vlan *v_opts); 1626a580c76dSNikolay Aleksandrov 1627a580c76dSNikolay Aleksandrov /* vlan state manipulation helpers using *_ONCE to annotate lock-free access */ 1628a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v) 1629a580c76dSNikolay Aleksandrov { 1630a580c76dSNikolay Aleksandrov return READ_ONCE(v->state); 1631a580c76dSNikolay Aleksandrov } 1632a580c76dSNikolay Aleksandrov 1633a580c76dSNikolay Aleksandrov static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state) 1634a580c76dSNikolay Aleksandrov { 1635a580c76dSNikolay Aleksandrov WRITE_ONCE(v->state, state); 1636a580c76dSNikolay Aleksandrov } 1637a580c76dSNikolay Aleksandrov 1638a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg) 1639a580c76dSNikolay Aleksandrov { 1640a580c76dSNikolay Aleksandrov return READ_ONCE(vg->pvid_state); 1641a580c76dSNikolay Aleksandrov } 1642a580c76dSNikolay Aleksandrov 1643a580c76dSNikolay Aleksandrov static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg, 1644a580c76dSNikolay Aleksandrov u8 state) 1645a580c76dSNikolay Aleksandrov { 1646a580c76dSNikolay Aleksandrov WRITE_ONCE(vg->pvid_state, state); 1647a580c76dSNikolay Aleksandrov } 1648a580c76dSNikolay Aleksandrov 1649a580c76dSNikolay Aleksandrov /* learn_allow is true at ingress and false at egress */ 1650a580c76dSNikolay Aleksandrov static inline bool br_vlan_state_allowed(u8 state, bool learn_allow) 1651a580c76dSNikolay Aleksandrov { 1652a580c76dSNikolay Aleksandrov switch (state) { 1653a580c76dSNikolay Aleksandrov case BR_STATE_LEARNING: 1654a580c76dSNikolay Aleksandrov return learn_allow; 1655a580c76dSNikolay Aleksandrov case BR_STATE_FORWARDING: 1656a580c76dSNikolay Aleksandrov return true; 1657a580c76dSNikolay Aleksandrov default: 1658a580c76dSNikolay Aleksandrov return false; 1659a580c76dSNikolay Aleksandrov } 1660a580c76dSNikolay Aleksandrov } 16617a53e718SNikolay Aleksandrov #endif 16627a53e718SNikolay Aleksandrov 16631a4ba64dSPablo Neira Ayuso struct nf_br_ops { 16641a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 16651a4ba64dSPablo Neira Ayuso }; 16661a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 16671a4ba64dSPablo Neira Ayuso 16681da177e4SLinus Torvalds /* br_netfilter.c */ 166934666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 167034666d46SPablo Neira Ayuso int br_nf_core_init(void); 167134666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1672348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1673c0909713SStephen Hemminger #else 167434666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 167534666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 16764adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1677c0909713SStephen Hemminger #endif 16781da177e4SLinus Torvalds 16791da177e4SLinus Torvalds /* br_stp.c */ 1680775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1681348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1682348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1683348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 16841da177e4SLinus Torvalds 1685348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1686348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1687348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1688348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 168982dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 16909e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 169114f98f25Sstephen hemminger 169214f98f25Sstephen hemminger 16931da177e4SLinus Torvalds /* br_stp_if.c */ 1694348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1695348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1696419dba8aSHoratiu Vultur int br_stp_set_enabled(struct net_bridge *br, unsigned long val, 1697419dba8aSHoratiu Vultur struct netlink_ext_ack *extack); 1698348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1699348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1700348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1701348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1702348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1703348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1704348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1705348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 17061da177e4SLinus Torvalds 17071da177e4SLinus Torvalds /* br_stp_bpdu.c */ 17087c85fbf0SPatrick McHardy struct stp_proto; 1709348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 17107c85fbf0SPatrick McHardy struct net_device *dev); 17111da177e4SLinus Torvalds 17121da177e4SLinus Torvalds /* br_stp_timer.c */ 1713348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1714348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1715348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 17161da177e4SLinus Torvalds 17171da177e4SLinus Torvalds /* br.c */ 1718e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1719da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1720da678292SMichał Mirosław #endif 17211da177e4SLinus Torvalds 172265369933SHoratiu Vultur /* br_mrp.c */ 172365369933SHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 172465369933SHoratiu Vultur int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 172565369933SHoratiu Vultur struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 172665369933SHoratiu Vultur bool br_mrp_enabled(struct net_bridge *br); 172765369933SHoratiu Vultur void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p); 1728df42ef22SHoratiu Vultur int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br); 172965369933SHoratiu Vultur #else 173065369933SHoratiu Vultur static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 173165369933SHoratiu Vultur struct nlattr *attr, int cmd, 173265369933SHoratiu Vultur struct netlink_ext_ack *extack) 173365369933SHoratiu Vultur { 173465369933SHoratiu Vultur return -EOPNOTSUPP; 173565369933SHoratiu Vultur } 173665369933SHoratiu Vultur 173765369933SHoratiu Vultur static inline bool br_mrp_enabled(struct net_bridge *br) 173865369933SHoratiu Vultur { 17398741e184SJason Yan return false; 174065369933SHoratiu Vultur } 174165369933SHoratiu Vultur 174265369933SHoratiu Vultur static inline void br_mrp_port_del(struct net_bridge *br, 174365369933SHoratiu Vultur struct net_bridge_port *p) 174465369933SHoratiu Vultur { 174565369933SHoratiu Vultur } 1746df42ef22SHoratiu Vultur 1747df42ef22SHoratiu Vultur static inline int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br) 1748df42ef22SHoratiu Vultur { 1749df42ef22SHoratiu Vultur return 0; 1750df42ef22SHoratiu Vultur } 1751df42ef22SHoratiu Vultur 175265369933SHoratiu Vultur #endif 175365369933SHoratiu Vultur 17542be665c3SHenrik Bjoernlund /* br_cfm.c */ 175586a14b79SHenrik Bjoernlund #if IS_ENABLED(CONFIG_BRIDGE_CFM) 17562be665c3SHenrik Bjoernlund int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p, 17572be665c3SHenrik Bjoernlund struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 17582be665c3SHenrik Bjoernlund bool br_cfm_created(struct net_bridge *br); 175986a14b79SHenrik Bjoernlund void br_cfm_port_del(struct net_bridge *br, struct net_bridge_port *p); 17605e312fc0SHenrik Bjoernlund int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br); 1761b6d0425bSHenrik Bjoernlund int br_cfm_status_fill_info(struct sk_buff *skb, 1762b6d0425bSHenrik Bjoernlund struct net_bridge *br, 1763b6d0425bSHenrik Bjoernlund bool getlink); 1764b6d0425bSHenrik Bjoernlund int br_cfm_mep_count(struct net_bridge *br, u32 *count); 1765b6d0425bSHenrik Bjoernlund int br_cfm_peer_mep_count(struct net_bridge *br, u32 *count); 176686a14b79SHenrik Bjoernlund #else 17672be665c3SHenrik Bjoernlund static inline int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p, 17682be665c3SHenrik Bjoernlund struct nlattr *attr, int cmd, 17692be665c3SHenrik Bjoernlund struct netlink_ext_ack *extack) 17702be665c3SHenrik Bjoernlund { 17712be665c3SHenrik Bjoernlund return -EOPNOTSUPP; 17722be665c3SHenrik Bjoernlund } 17732be665c3SHenrik Bjoernlund 17742be665c3SHenrik Bjoernlund static inline bool br_cfm_created(struct net_bridge *br) 17752be665c3SHenrik Bjoernlund { 17762be665c3SHenrik Bjoernlund return false; 17772be665c3SHenrik Bjoernlund } 17782be665c3SHenrik Bjoernlund 177986a14b79SHenrik Bjoernlund static inline void br_cfm_port_del(struct net_bridge *br, 178086a14b79SHenrik Bjoernlund struct net_bridge_port *p) 178186a14b79SHenrik Bjoernlund { 178286a14b79SHenrik Bjoernlund } 17835e312fc0SHenrik Bjoernlund 17845e312fc0SHenrik Bjoernlund static inline int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br) 17855e312fc0SHenrik Bjoernlund { 17865e312fc0SHenrik Bjoernlund return -EOPNOTSUPP; 17875e312fc0SHenrik Bjoernlund } 1788e77824d8SHenrik Bjoernlund 1789b6d0425bSHenrik Bjoernlund static inline int br_cfm_status_fill_info(struct sk_buff *skb, 1790b6d0425bSHenrik Bjoernlund struct net_bridge *br, 1791b6d0425bSHenrik Bjoernlund bool getlink) 1792b6d0425bSHenrik Bjoernlund { 1793b6d0425bSHenrik Bjoernlund return -EOPNOTSUPP; 1794b6d0425bSHenrik Bjoernlund } 1795b6d0425bSHenrik Bjoernlund 1796b6d0425bSHenrik Bjoernlund static inline int br_cfm_mep_count(struct net_bridge *br, u32 *count) 1797b6d0425bSHenrik Bjoernlund { 1798b6d0425bSHenrik Bjoernlund return -EOPNOTSUPP; 1799b6d0425bSHenrik Bjoernlund } 1800b6d0425bSHenrik Bjoernlund 1801b6d0425bSHenrik Bjoernlund static inline int br_cfm_peer_mep_count(struct net_bridge *br, u32 *count) 1802e77824d8SHenrik Bjoernlund { 1803e77824d8SHenrik Bjoernlund return -EOPNOTSUPP; 1804e77824d8SHenrik Bjoernlund } 180586a14b79SHenrik Bjoernlund #endif 180686a14b79SHenrik Bjoernlund 180711dc1f36SStephen Hemminger /* br_netlink.c */ 1808149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1809348662a1SJoe Perches int br_netlink_init(void); 1810348662a1SJoe Perches void br_netlink_fini(void); 181192899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 181292899063SNikolay Aleksandrov const struct net_bridge_port *port); 1813b6d0425bSHenrik Bjoernlund void br_info_notify(int event, const struct net_bridge *br, 1814b6d0425bSHenrik Bjoernlund const struct net_bridge_port *port, u32 filter); 18152fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 18162fd527b7SPetr Machata struct netlink_ext_ack *extack); 1817add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1818348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 181946c264daSNicolas Dichtel u32 filter_mask, int nlflags); 1820f26b2965SNikolay Aleksandrov int br_process_vlan_info(struct net_bridge *br, 1821f26b2965SNikolay Aleksandrov struct net_bridge_port *p, int cmd, 1822f26b2965SNikolay Aleksandrov struct bridge_vlan_info *vinfo_curr, 1823f26b2965SNikolay Aleksandrov struct bridge_vlan_info **vinfo_last, 1824f26b2965SNikolay Aleksandrov bool *changed, 1825f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack); 182611dc1f36SStephen Hemminger 18271da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 18281da177e4SLinus Torvalds /* br_sysfs_if.c */ 182952cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1830348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1831348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 18321da177e4SLinus Torvalds 18331da177e4SLinus Torvalds /* br_sysfs_br.c */ 1834348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1835348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 18361da177e4SLinus Torvalds 18371da177e4SLinus Torvalds #else 18381da177e4SLinus Torvalds 18390cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 18400cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 18410cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 18420cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 18431da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 18441da177e4SLinus Torvalds 18456bc506b4SIdo Schimmel /* br_switchdev.c */ 18466bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 18476bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 18486bc506b4SIdo Schimmel struct sk_buff *skb); 18496bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 18506bc506b4SIdo Schimmel const struct sk_buff *skb); 18513922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 18523922285dSArkadi Sharshevsky unsigned long flags, 1853078bbb85SVladimir Oltean unsigned long mask, 1854078bbb85SVladimir Oltean struct netlink_ext_ack *extack); 18556eb38bf8STobias Waldekranz void br_switchdev_fdb_notify(struct net_bridge *br, 18566eb38bf8STobias Waldekranz const struct net_bridge_fdb_entry *fdb, int type); 1857169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1858169327d5SPetr Machata struct netlink_ext_ack *extack); 1859d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1860*85826610STobias Waldekranz int nbp_switchdev_add(struct net_bridge_port *p); 1861*85826610STobias Waldekranz void nbp_switchdev_del(struct net_bridge_port *p); 1862*85826610STobias Waldekranz void br_switchdev_init(struct net_bridge *br); 1863f1c2eddfSIdo Schimmel 1864f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1865f1c2eddfSIdo Schimmel { 1866f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1867f1c2eddfSIdo Schimmel } 18686bc506b4SIdo Schimmel #else 18696bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 18706bc506b4SIdo Schimmel struct sk_buff *skb) 18716bc506b4SIdo Schimmel { 18726bc506b4SIdo Schimmel } 18736bc506b4SIdo Schimmel 18746bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 18756bc506b4SIdo Schimmel const struct sk_buff *skb) 18766bc506b4SIdo Schimmel { 18776bc506b4SIdo Schimmel return true; 18786bc506b4SIdo Schimmel } 18793922285dSArkadi Sharshevsky 18803922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 18813922285dSArkadi Sharshevsky unsigned long flags, 1882078bbb85SVladimir Oltean unsigned long mask, 1883078bbb85SVladimir Oltean struct netlink_ext_ack *extack) 18843922285dSArkadi Sharshevsky { 18853922285dSArkadi Sharshevsky return 0; 18863922285dSArkadi Sharshevsky } 18876b26b51bSArkadi Sharshevsky 1888d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1889169327d5SPetr Machata u16 vid, u16 flags, 1890169327d5SPetr Machata struct netlink_ext_ack *extack) 1891d66e4348SPetr Machata { 1892d66e4348SPetr Machata return -EOPNOTSUPP; 1893d66e4348SPetr Machata } 1894d66e4348SPetr Machata 1895d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1896d66e4348SPetr Machata { 1897d66e4348SPetr Machata return -EOPNOTSUPP; 1898d66e4348SPetr Machata } 1899d66e4348SPetr Machata 19006b26b51bSArkadi Sharshevsky static inline void 19016eb38bf8STobias Waldekranz br_switchdev_fdb_notify(struct net_bridge *br, 19026eb38bf8STobias Waldekranz const struct net_bridge_fdb_entry *fdb, int type) 19036b26b51bSArkadi Sharshevsky { 19046b26b51bSArkadi Sharshevsky } 1905f1c2eddfSIdo Schimmel 1906f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1907f1c2eddfSIdo Schimmel { 1908f1c2eddfSIdo Schimmel } 1909*85826610STobias Waldekranz 1910*85826610STobias Waldekranz static inline int nbp_switchdev_add(struct net_bridge_port *p) 1911*85826610STobias Waldekranz { 1912*85826610STobias Waldekranz return 0; 1913*85826610STobias Waldekranz } 1914*85826610STobias Waldekranz 1915*85826610STobias Waldekranz static inline void nbp_switchdev_del(struct net_bridge_port *p) 1916*85826610STobias Waldekranz { 1917*85826610STobias Waldekranz } 1918*85826610STobias Waldekranz 1919*85826610STobias Waldekranz static inline void br_switchdev_init(struct net_bridge *br) 1920*85826610STobias Waldekranz { 1921*85826610STobias Waldekranz } 1922*85826610STobias Waldekranz 19236bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 19246bc506b4SIdo Schimmel 1925057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1926821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1927057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1928057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1929ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1930ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1931ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 19321da177e4SLinus Torvalds #endif 1933