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 3285826610STobias Waldekranz #define BR_HWDOM_MAX BITS_PER_LONG 3385826610STobias 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; 3952f5dc00fSVladimir Oltean int offload_count; 3962f5dc00fSVladimir Oltean struct netdev_phys_item_id ppid; 3976bc506b4SIdo Schimmel #endif 3985af48b59SNikolay Aleksandrov u16 group_fwd_mask; 3992756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 400de179966SVivien Didelot 401de179966SVivien Didelot struct bridge_stp_xstats stp_xstats; 4021da177e4SLinus Torvalds }; 4031da177e4SLinus Torvalds 404705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 405705e0deaSTyler Hicks 406e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 407f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 408e028e4b8SVlad Yasevich 409b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 410b5ed54e9Sstephen hemminger { 411716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 412b5ed54e9Sstephen hemminger } 413b5ed54e9Sstephen hemminger 4141fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 415b5ed54e9Sstephen hemminger { 41635f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 417ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 418b5ed54e9Sstephen hemminger } 419b5ed54e9Sstephen hemminger 4200baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 4210baa10ffSArkadi Sharshevsky { 42235f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 4230baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 4240baa10ffSArkadi Sharshevsky } 4250baa10ffSArkadi Sharshevsky 426ae75767eSNikolay Aleksandrov enum net_bridge_opts { 427ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 428ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 4298df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 4308df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 4318df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 432be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 43313cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 434675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 435675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 436675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 437675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 438c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 4393341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 4409163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 44170e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 4429c0ec2e7SMike Manning BROPT_VLAN_BRIDGE_BINDING, 443f4b7002aSNikolay Aleksandrov BROPT_MCAST_VLAN_SNOOPING_ENABLED, 444ae75767eSNikolay Aleksandrov }; 445ae75767eSNikolay Aleksandrov 4461f90c7f3SNikolay Aleksandrov struct net_bridge { 4471da177e4SLinus Torvalds spinlock_t lock; 4481f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 44990c628ddSHenrik Bjoernlund struct hlist_head frame_type_list; 4501da177e4SLinus Torvalds struct net_device *dev; 451ae75767eSNikolay Aleksandrov unsigned long options; 4521f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 4531f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 4541f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 4551f90c7f3SNikolay Aleksandrov u16 default_pvid; 4561f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 4571f90c7f3SNikolay Aleksandrov #endif 4581f90c7f3SNikolay Aleksandrov 459eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 46090c628ddSHenrik Bjoernlund struct list_head port_list; 46134666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 462efb6de9bSBernhard Thaler union { 4634adf0af6SSimon Wunderlich struct rtable fake_rtable; 464efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 465efb6de9bSBernhard Thaler }; 4664adf0af6SSimon Wunderlich #endif 467515853ccSstephen hemminger u16 group_fwd_mask; 468f2808d22SToshiaki Makita u16 group_fwd_mask_required; 469515853ccSstephen hemminger 4701da177e4SLinus Torvalds /* STP */ 4711da177e4SLinus Torvalds bridge_id designated_root; 4721da177e4SLinus Torvalds bridge_id bridge_id; 4731f90c7f3SNikolay Aleksandrov unsigned char topology_change; 4741f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 4751f90c7f3SNikolay Aleksandrov u16 root_port; 4761da177e4SLinus Torvalds unsigned long max_age; 4771da177e4SLinus Torvalds unsigned long hello_time; 4781da177e4SLinus Torvalds unsigned long forward_delay; 4791da177e4SLinus Torvalds unsigned long ageing_time; 48034d8acd8SVivien Didelot unsigned long bridge_max_age; 4811da177e4SLinus Torvalds unsigned long bridge_hello_time; 4821da177e4SLinus Torvalds unsigned long bridge_forward_delay; 48334d8acd8SVivien Didelot unsigned long bridge_ageing_time; 48435750b0bSNikolay Aleksandrov u32 root_path_cost; 4851da177e4SLinus Torvalds 486fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 4879cde0708SStephen Hemminger 4889cde0708SStephen Hemminger enum { 4899cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 4909cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 4919cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 4929cde0708SStephen Hemminger } stp_enabled; 4939cde0708SStephen Hemminger 494d3d065c0SNikolay Aleksandrov struct net_bridge_mcast multicast_ctx; 495d3d065c0SNikolay Aleksandrov 496eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 497d3d065c0SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 498eb1d1641SHerbert Xu 499eb1d1641SHerbert Xu u32 hash_max; 500eb1d1641SHerbert Xu 50135750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 502eb1d1641SHerbert Xu 50319e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 504085b53c8SNikolay Aleksandrov struct rhashtable sg_port_tbl; 50519e3a9c9SNikolay Aleksandrov 506e12cec65SNikolay Aleksandrov struct hlist_head mcast_gc_list; 50719e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 508eb1d1641SHerbert Xu 509e12cec65SNikolay Aleksandrov struct work_struct mcast_gc_work; 510eb1d1641SHerbert Xu #endif 511eb1d1641SHerbert Xu 5121da177e4SLinus Torvalds struct timer_list hello_timer; 5131da177e4SLinus Torvalds struct timer_list tcn_timer; 5141da177e4SLinus Torvalds struct timer_list topology_change_timer; 515f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 51643b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 517e028e4b8SVlad Yasevich u32 auto_cnt; 5186bc506b4SIdo Schimmel 5196bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 520f7cf972fSTobias Waldekranz /* Counter used to make sure that hardware domains get unique 521f7cf972fSTobias Waldekranz * identifiers in case a bridge spans multiple switchdev instances. 522f7cf972fSTobias Waldekranz */ 523f7cf972fSTobias Waldekranz int last_hwdom; 52485826610STobias Waldekranz /* Bit mask of hardware domain numbers in use */ 52585826610STobias Waldekranz unsigned long busy_hwdoms; 5266bc506b4SIdo Schimmel #endif 527eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 5284b8d7d4cSHoratiu Vultur 5294b8d7d4cSHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 5300169b820SHoratiu Vultur struct hlist_head mrp_list; 5314b8d7d4cSHoratiu Vultur #endif 532f323aa54SHenrik Bjoernlund #if IS_ENABLED(CONFIG_BRIDGE_CFM) 533f323aa54SHenrik Bjoernlund struct hlist_head mep_list; 534f323aa54SHenrik Bjoernlund #endif 5351da177e4SLinus Torvalds }; 5361da177e4SLinus Torvalds 53768b7c895SHerbert Xu struct br_input_skb_cb { 53868b7c895SHerbert Xu struct net_device *brdev; 53993fdd47eSHerbert Xu 5403c171f49SPablo Neira Ayuso u16 frag_max_size; 54132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 542f12064d1SFlorian Westphal u8 igmp; 543f12064d1SFlorian Westphal u8 mrouters_only:1; 54432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 545f12064d1SFlorian Westphal u8 proxyarp_replied:1; 546f12064d1SFlorian Westphal u8 src_port_isolated:1; 54720adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 548f12064d1SFlorian Westphal u8 vlan_filtered:1; 54920adfa1aSVlad Yasevich #endif 550223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 551223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 552223fd0adSFlorian Westphal #endif 5536bc506b4SIdo Schimmel 5546bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 55547211192STobias Waldekranz /* Set if TX data plane offloading is used towards at least one 55647211192STobias Waldekranz * hardware domain. 55747211192STobias Waldekranz */ 55847211192STobias Waldekranz u8 tx_fwd_offload:1; 559f7cf972fSTobias Waldekranz /* The switchdev hardware domain from which this packet was received. 560f7cf972fSTobias Waldekranz * If skb->offload_fwd_mark was set, then this packet was already 561f7cf972fSTobias Waldekranz * forwarded by hardware to the other ports in the source hardware 562f7cf972fSTobias Waldekranz * domain, otherwise it wasn't. 563f7cf972fSTobias Waldekranz */ 564f7cf972fSTobias Waldekranz int src_hwdom; 56547211192STobias Waldekranz /* Bit mask of hardware domains towards this packet has already been 56647211192STobias Waldekranz * transmitted using the TX data plane offload. 56747211192STobias Waldekranz */ 56847211192STobias Waldekranz unsigned long fwd_hwdoms; 5696bc506b4SIdo Schimmel #endif 57068b7c895SHerbert Xu }; 57168b7c895SHerbert Xu 57268b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 57368b7c895SHerbert Xu 57432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 57532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 57632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 57732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 57832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 57932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 58028a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 58128a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 58228a16c97Sstephen hemminger 58328a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 58428a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 58528a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 58628a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 58728a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 58828a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 58928a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 59028a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 59128a16c97Sstephen hemminger 59228a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 59328a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 59428a16c97Sstephen hemminger 5951da177e4SLinus Torvalds /* called under bridge lock */ 5961da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 5971da177e4SLinus Torvalds { 5981da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 5991da177e4SLinus Torvalds } 6001da177e4SLinus Torvalds 6012594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 6022594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 6032594e906SNikolay Aleksandrov { 6042594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 6052594e906SNikolay Aleksandrov } 6062594e906SNikolay Aleksandrov 6072594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 6082594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 6092594e906SNikolay Aleksandrov { 6102594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 6112594e906SNikolay Aleksandrov } 6122594e906SNikolay Aleksandrov 6136be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 6142594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 6152594e906SNikolay Aleksandrov { 6162594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 6172594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 6182594e906SNikolay Aleksandrov return true; 6192594e906SNikolay Aleksandrov else 6202594e906SNikolay Aleksandrov return false; 6212594e906SNikolay Aleksandrov } 6222594e906SNikolay Aleksandrov 6232594e906SNikolay Aleksandrov return true; 6242594e906SNikolay Aleksandrov } 6252594e906SNikolay Aleksandrov 6265d1fcaf3SNikolay Aleksandrov static inline bool nbp_state_should_learn(const struct net_bridge_port *p) 6275d1fcaf3SNikolay Aleksandrov { 6285d1fcaf3SNikolay Aleksandrov return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; 6295d1fcaf3SNikolay Aleksandrov } 6305d1fcaf3SNikolay Aleksandrov 6318f4cc940SNikolay Aleksandrov static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack) 6325a46facbSNikolay Aleksandrov { 6338f4cc940SNikolay Aleksandrov bool ret = vid > 0 && vid < VLAN_VID_MASK; 6348f4cc940SNikolay Aleksandrov 6358f4cc940SNikolay Aleksandrov if (!ret) 6368f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid"); 6378f4cc940SNikolay Aleksandrov 6388f4cc940SNikolay Aleksandrov return ret; 6395a46facbSNikolay Aleksandrov } 6405a46facbSNikolay Aleksandrov 6415a46facbSNikolay Aleksandrov static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, 6428f4cc940SNikolay Aleksandrov const struct bridge_vlan_info *last, 6438f4cc940SNikolay Aleksandrov struct netlink_ext_ack *extack) 6445a46facbSNikolay Aleksandrov { 6455a46facbSNikolay Aleksandrov /* pvid flag is not allowed in ranges */ 6468f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_PVID) { 6478f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range"); 6485a46facbSNikolay Aleksandrov return false; 6498f4cc940SNikolay Aleksandrov } 6505a46facbSNikolay Aleksandrov 6515a46facbSNikolay Aleksandrov /* when cur is the range end, check if: 6525a46facbSNikolay Aleksandrov * - it has range start flag 6535a46facbSNikolay Aleksandrov * - range ids are invalid (end is equal to or before start) 6545a46facbSNikolay Aleksandrov */ 6555a46facbSNikolay Aleksandrov if (last) { 6568f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { 6578f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one"); 6585a46facbSNikolay Aleksandrov return false; 6598f4cc940SNikolay Aleksandrov } else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) { 6608f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing"); 6618f4cc940SNikolay Aleksandrov return false; 6628f4cc940SNikolay Aleksandrov } else if (cur->vid <= last->vid) { 6638f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); 6648f4cc940SNikolay Aleksandrov return false; 6658f4cc940SNikolay Aleksandrov } 6668f4cc940SNikolay Aleksandrov } 6678f4cc940SNikolay Aleksandrov 6688f4cc940SNikolay Aleksandrov /* check for required range flags */ 6698f4cc940SNikolay Aleksandrov if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 6708f4cc940SNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END))) { 6718f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing"); 6725a46facbSNikolay Aleksandrov return false; 6735a46facbSNikolay Aleksandrov } 6745a46facbSNikolay Aleksandrov 6755a46facbSNikolay Aleksandrov return true; 6765a46facbSNikolay Aleksandrov } 6775a46facbSNikolay Aleksandrov 678f545923bSNikolay Aleksandrov static inline int br_afspec_cmd_to_rtm(int cmd) 679f545923bSNikolay Aleksandrov { 680f545923bSNikolay Aleksandrov switch (cmd) { 681f545923bSNikolay Aleksandrov case RTM_SETLINK: 682f545923bSNikolay Aleksandrov return RTM_NEWVLAN; 683f545923bSNikolay Aleksandrov case RTM_DELLINK: 684f545923bSNikolay Aleksandrov return RTM_DELVLAN; 685f545923bSNikolay Aleksandrov } 686f545923bSNikolay Aleksandrov 687f545923bSNikolay Aleksandrov return 0; 688f545923bSNikolay Aleksandrov } 689f545923bSNikolay Aleksandrov 690ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 691ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 692ae75767eSNikolay Aleksandrov { 693ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 694ae75767eSNikolay Aleksandrov } 695ae75767eSNikolay Aleksandrov 696a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 697a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 698a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 699a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 700a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 701a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 702a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 703a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 704ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 705ae75767eSNikolay Aleksandrov 7061da177e4SLinus Torvalds /* br_device.c */ 707348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 708348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 709348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 710cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 71191d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 71291d2c34aSHerbert Xu struct sk_buff *skb) 71391d2c34aSHerbert Xu { 714f78ed220SEric Dumazet netpoll_send_skb(p->np, skb); 71591d2c34aSHerbert Xu } 71691d2c34aSHerbert Xu 717a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 718348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 71991d2c34aSHerbert Xu #else 7209f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 72191d2c34aSHerbert Xu struct sk_buff *skb) 72291d2c34aSHerbert Xu { 72391d2c34aSHerbert Xu } 72491d2c34aSHerbert Xu 725a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 72691d2c34aSHerbert Xu { 72791d2c34aSHerbert Xu return 0; 72891d2c34aSHerbert Xu } 72991d2c34aSHerbert Xu 73091d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 73191d2c34aSHerbert Xu { 73291d2c34aSHerbert Xu } 733cfb478daSstephen hemminger #endif 7341da177e4SLinus Torvalds 7351da177e4SLinus Torvalds /* br_fdb.c */ 736348662a1SJoe Perches int br_fdb_init(void); 737348662a1SJoe Perches void br_fdb_fini(void); 738eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 739eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 740348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 741424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 742424bb9c9SToshiaki Makita const struct net_bridge_port *p, 743424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 744348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 745348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 746f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 747348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 7481ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 749bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 750bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 751bfd0aeacSNikolay Aleksandrov __u16 vid); 752348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 753348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 754348662a1SJoe Perches unsigned long off); 755348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 756348662a1SJoe Perches const unsigned char *addr, u16 vid); 757348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 758be0c5677SNikolay Aleksandrov const unsigned char *addr, u16 vid, unsigned long flags); 75977162022SJohn Fastabend 760348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 761f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 762348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 76387b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 76487b0984eSPetr Machata struct netlink_ext_ack *extack); 765348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 766d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 76747674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 76847674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 76947674562SRoopa Prabhu struct netlink_ext_ack *extack); 7708db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 7718db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 7723aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 773161d82deSPetr Machata const unsigned char *addr, u16 vid, 774161d82deSPetr Machata bool swdev_notify); 7753aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 776161d82deSPetr Machata const unsigned char *addr, u16 vid, 777161d82deSPetr Machata bool swdev_notify); 7789fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 779e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 7804e51bf44SVladimir Oltean int br_fdb_replay(const struct net_device *br_dev, const struct net_device *dev, 7814e51bf44SVladimir Oltean const void *ctx, bool adding, struct notifier_block *nb); 7821da177e4SLinus Torvalds 7831da177e4SLinus Torvalds /* br_forward.c */ 7848addd5e7SNikolay Aleksandrov enum br_pkt_type { 7858addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 7868addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 7878addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 7888addd5e7SNikolay Aleksandrov }; 7890c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 790b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 79137b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 7920c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 79337b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 7948addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 7951da177e4SLinus Torvalds 7967d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 7977d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 7987d850abdSNikolay Aleksandrov const struct sk_buff *skb) 7997d850abdSNikolay Aleksandrov { 8007d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 8017d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 8027d850abdSNikolay Aleksandrov } 8037d850abdSNikolay Aleksandrov 8041da177e4SLinus Torvalds /* br_if.c */ 805faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 806348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 807348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 808ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 809ca752be0SDavid Ahern struct netlink_ext_ack *extack); 810348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 811804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 812348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 813c8f44affSMichał Mirosław netdev_features_t features); 814e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 8152796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 8162756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 8171da177e4SLinus Torvalds 8181da177e4SLinus Torvalds /* br_input.c */ 8190c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 8209eb8eff0SVladimir Oltean rx_handler_func_t *br_get_rx_handler(const struct net_device *dev); 8211da177e4SLinus Torvalds 82290c628ddSHenrik Bjoernlund struct br_frame_type { 82390c628ddSHenrik Bjoernlund __be16 type; 82490c628ddSHenrik Bjoernlund int (*frame_handler)(struct net_bridge_port *port, 82590c628ddSHenrik Bjoernlund struct sk_buff *skb); 82690c628ddSHenrik Bjoernlund struct hlist_node list; 82790c628ddSHenrik Bjoernlund }; 82890c628ddSHenrik Bjoernlund 82990c628ddSHenrik Bjoernlund void br_add_frame(struct net_bridge *br, struct br_frame_type *ft); 83090c628ddSHenrik Bjoernlund void br_del_frame(struct net_bridge *br, struct br_frame_type *ft); 83190c628ddSHenrik Bjoernlund 832859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 833859828c0SJiri Pirko { 8349eb8eff0SVladimir Oltean return rcu_dereference(dev->rx_handler) == br_get_rx_handler(dev); 835859828c0SJiri Pirko } 836859828c0SJiri Pirko 8374d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 8384d4fd361SPetr Machata { 8399eb8eff0SVladimir Oltean return rcu_dereference_rtnl(dev->rx_handler) == br_get_rx_handler(dev); 8404d4fd361SPetr Machata } 8414d4fd361SPetr Machata 842859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 843859828c0SJiri Pirko { 844859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 845859828c0SJiri Pirko } 846859828c0SJiri Pirko 8474d4fd361SPetr Machata static inline struct net_bridge_port * 8484d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 8494d4fd361SPetr Machata { 8504d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 8514d4fd361SPetr Machata } 8524d4fd361SPetr Machata 8531da177e4SLinus Torvalds /* br_ioctl.c */ 854348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 855*561d8352SArnd Bergmann int br_dev_siocdevprivate(struct net_device *dev, struct ifreq *rq, 856*561d8352SArnd Bergmann void __user *data, int cmd); 857348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 858348662a1SJoe Perches void __user *arg); 8591da177e4SLinus Torvalds 860eb1d1641SHerbert Xu /* br_multicast.c */ 861eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 862f4b7002aSNikolay Aleksandrov int br_multicast_rcv(struct net_bridge_mcast **brmctx, 863f4b7002aSNikolay Aleksandrov struct net_bridge_mcast_port **pmctx, 864f4b7002aSNikolay Aleksandrov struct net_bridge_vlan *vlan, 865fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 866adc47037SNikolay Aleksandrov struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge_mcast *brmctx, 867eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 8681080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 869348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 870348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 871348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 872348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 873851d0a73SJoseph Huang void br_multicast_join_snoopers(struct net_bridge *br); 874851d0a73SJoseph Huang void br_multicast_leave_snoopers(struct net_bridge *br); 875348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 876348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 877e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 878adc47037SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, struct sk_buff *skb, 879adc47037SNikolay Aleksandrov struct net_bridge_mcast *brmctx, 880adc47037SNikolay Aleksandrov bool local_rcv, bool local_orig); 881348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 882348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 883ae1ea84bSFlorian Fainelli int br_multicast_toggle(struct net_bridge *br, unsigned long val, 884ae1ea84bSFlorian Fainelli struct netlink_ext_ack *extack); 885348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 886348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 8875e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 888aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 889aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 890aa2ae3e7SNikolay Aleksandrov #endif 891348662a1SJoe Perches struct net_bridge_mdb_entry * 89219e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 893348662a1SJoe Perches struct net_bridge_mdb_entry * 89419e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 895348662a1SJoe Perches struct net_bridge_port_group * 896348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 897762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 8988b671779SNikolay Aleksandrov unsigned char flags, const unsigned char *src, 8998f8cb77eSNikolay Aleksandrov u8 filter_mode, u8 rt_protocol); 90019e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 90119e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 90281f19838SNikolay Aleksandrov void br_mdb_notify(struct net_device *dev, struct net_bridge_mdb_entry *mp, 90381f19838SNikolay Aleksandrov struct net_bridge_port_group *pg, int type); 9041e9ca456SNikolay Aleksandrov void br_rtr_notify(struct net_device *dev, struct net_bridge_mcast_port *pmctx, 905949f1e39SSatish Ashok int type); 906681590bdSNikolay Aleksandrov void br_multicast_del_pg(struct net_bridge_mdb_entry *mp, 907681590bdSNikolay Aleksandrov struct net_bridge_port_group *pg, 908681590bdSNikolay Aleksandrov struct net_bridge_port_group __rcu **pp); 909adc47037SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, 910adc47037SNikolay Aleksandrov const struct net_bridge_port *p, 911a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 9121080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 913b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 9141080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 9151080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 9161080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 91719e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 91819e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 91958d913a3SNikolay Aleksandrov void br_multicast_host_join(const struct net_bridge_mcast *brmctx, 92058d913a3SNikolay Aleksandrov struct net_bridge_mdb_entry *mp, bool notify); 9211bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 9228266a049SNikolay Aleksandrov void br_multicast_star_g_handle_mode(struct net_bridge_port_group *pg, 9238266a049SNikolay Aleksandrov u8 filter_mode); 9248266a049SNikolay Aleksandrov void br_multicast_sg_add_exclude_ports(struct net_bridge_mdb_entry *star_mp, 9258266a049SNikolay Aleksandrov struct net_bridge_port_group *sg); 926474ddb37SNikolay Aleksandrov struct net_bridge_group_src * 927474ddb37SNikolay Aleksandrov br_multicast_find_group_src(struct net_bridge_port_group *pg, struct br_ip *ip); 928d5a10222SNikolay Aleksandrov void br_multicast_del_group_src(struct net_bridge_group_src *src, 929d5a10222SNikolay Aleksandrov bool fastleave); 930613d61dbSNikolay Aleksandrov void br_multicast_ctx_init(struct net_bridge *br, 931613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 932613d61dbSNikolay Aleksandrov struct net_bridge_mcast *brmctx); 933613d61dbSNikolay Aleksandrov void br_multicast_ctx_deinit(struct net_bridge_mcast *brmctx); 934613d61dbSNikolay Aleksandrov void br_multicast_port_ctx_init(struct net_bridge_port *port, 935613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 936613d61dbSNikolay Aleksandrov struct net_bridge_mcast_port *pmctx); 937613d61dbSNikolay Aleksandrov void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port *pmctx); 9387b54aaafSNikolay Aleksandrov void br_multicast_toggle_one_vlan(struct net_bridge_vlan *vlan, bool on); 939f4b7002aSNikolay Aleksandrov void br_multicast_toggle_vlan(struct net_bridge_vlan *vlan, bool on); 940f4b7002aSNikolay Aleksandrov int br_multicast_toggle_vlan_snooping(struct net_bridge *br, bool on, 941f4b7002aSNikolay Aleksandrov struct netlink_ext_ack *extack); 9429dee572cSNikolay Aleksandrov bool br_multicast_toggle_global_vlan(struct net_bridge_vlan *vlan, bool on); 94385b35269SSridhar Samudrala 9444e51bf44SVladimir Oltean int br_mdb_replay(struct net_device *br_dev, struct net_device *dev, 9454e51bf44SVladimir Oltean const void *ctx, bool adding, struct notifier_block *nb, 9464e51bf44SVladimir Oltean struct netlink_ext_ack *extack); 9474e51bf44SVladimir Oltean 948955062b0SNikolay Aleksandrov static inline bool br_group_is_l2(const struct br_ip *group) 949955062b0SNikolay Aleksandrov { 950955062b0SNikolay Aleksandrov return group->proto == 0; 951955062b0SNikolay Aleksandrov } 952955062b0SNikolay Aleksandrov 953cfd56754SCong Wang #define mlock_dereference(X, br) \ 954cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 955cfd56754SCong Wang 95644ebb081SLinus Lüssing static inline struct hlist_node * 957adc47037SNikolay Aleksandrov br_multicast_get_first_rport_node(struct net_bridge_mcast *brmctx, 958adc47037SNikolay Aleksandrov struct sk_buff *skb) 959d3d065c0SNikolay Aleksandrov { 960a3c02e76SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 961a3c02e76SLinus Lüssing if (skb->protocol == htons(ETH_P_IPV6)) 962d3d065c0SNikolay Aleksandrov return rcu_dereference(hlist_first_rcu(&brmctx->ip6_mc_router_list)); 963a3c02e76SLinus Lüssing #endif 964d3d065c0SNikolay Aleksandrov return rcu_dereference(hlist_first_rcu(&brmctx->ip4_mc_router_list)); 96544ebb081SLinus Lüssing } 96644ebb081SLinus Lüssing 96744ebb081SLinus Lüssing static inline struct net_bridge_port * 968d3d065c0SNikolay Aleksandrov br_multicast_rport_from_node_skb(struct hlist_node *rp, struct sk_buff *skb) 969d3d065c0SNikolay Aleksandrov { 9709632233eSNikolay Aleksandrov struct net_bridge_mcast_port *mctx; 9719632233eSNikolay Aleksandrov 972a3c02e76SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 973a3c02e76SLinus Lüssing if (skb->protocol == htons(ETH_P_IPV6)) 9749632233eSNikolay Aleksandrov mctx = hlist_entry_safe(rp, struct net_bridge_mcast_port, 9759632233eSNikolay Aleksandrov ip6_rlist); 9769632233eSNikolay Aleksandrov else 977a3c02e76SLinus Lüssing #endif 9789632233eSNikolay Aleksandrov mctx = hlist_entry_safe(rp, struct net_bridge_mcast_port, 9799632233eSNikolay Aleksandrov ip4_rlist); 9809632233eSNikolay Aleksandrov 9819632233eSNikolay Aleksandrov if (mctx) 9829632233eSNikolay Aleksandrov return mctx->port; 9839632233eSNikolay Aleksandrov else 9849632233eSNikolay Aleksandrov return NULL; 98544ebb081SLinus Lüssing } 98644ebb081SLinus Lüssing 987d3d065c0SNikolay Aleksandrov static inline bool br_ip4_multicast_is_router(struct net_bridge_mcast *brmctx) 98885b35269SSridhar Samudrala { 989d3d065c0SNikolay Aleksandrov return timer_pending(&brmctx->ip4_mc_router_timer); 9901a3065a2SLinus Lüssing } 9911a3065a2SLinus Lüssing 992d3d065c0SNikolay Aleksandrov static inline bool br_ip6_multicast_is_router(struct net_bridge_mcast *brmctx) 9931a3065a2SLinus Lüssing { 9941a3065a2SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 995d3d065c0SNikolay Aleksandrov return timer_pending(&brmctx->ip6_mc_router_timer); 9961a3065a2SLinus Lüssing #else 9971a3065a2SLinus Lüssing return false; 9981a3065a2SLinus Lüssing #endif 9991a3065a2SLinus Lüssing } 10001a3065a2SLinus Lüssing 10011a3065a2SLinus Lüssing static inline bool 1002adc47037SNikolay Aleksandrov br_multicast_is_router(struct net_bridge_mcast *brmctx, struct sk_buff *skb) 10031a3065a2SLinus Lüssing { 1004d3d065c0SNikolay Aleksandrov switch (brmctx->multicast_router) { 10051a3065a2SLinus Lüssing case MDB_RTR_TYPE_PERM: 10061a3065a2SLinus Lüssing return true; 10071a3065a2SLinus Lüssing case MDB_RTR_TYPE_TEMP_QUERY: 10081a3065a2SLinus Lüssing if (skb) { 10091a3065a2SLinus Lüssing if (skb->protocol == htons(ETH_P_IP)) 1010d3d065c0SNikolay Aleksandrov return br_ip4_multicast_is_router(brmctx); 10111a3065a2SLinus Lüssing else if (skb->protocol == htons(ETH_P_IPV6)) 1012d3d065c0SNikolay Aleksandrov return br_ip6_multicast_is_router(brmctx); 10131a3065a2SLinus Lüssing } else { 1014d3d065c0SNikolay Aleksandrov return br_ip4_multicast_is_router(brmctx) || 1015d3d065c0SNikolay Aleksandrov br_ip6_multicast_is_router(brmctx); 10161a3065a2SLinus Lüssing } 10171a3065a2SLinus Lüssing fallthrough; 10181a3065a2SLinus Lüssing default: 10191a3065a2SLinus Lüssing return false; 10201a3065a2SLinus Lüssing } 102185b35269SSridhar Samudrala } 1022b00589afSLinus Lüssing 1023cc0fdd80SLinus Lüssing static inline bool 1024adc47037SNikolay Aleksandrov __br_multicast_querier_exists(struct net_bridge_mcast *brmctx, 10250888d5f3Sdaniel struct bridge_mcast_other_query *querier, 10260888d5f3Sdaniel const bool is_ipv6) 1027b00589afSLinus Lüssing { 10280888d5f3Sdaniel bool own_querier_enabled; 10290888d5f3Sdaniel 1030adc47037SNikolay Aleksandrov if (br_opt_get(brmctx->br, BROPT_MULTICAST_QUERIER)) { 1031adc47037SNikolay Aleksandrov if (is_ipv6 && !br_opt_get(brmctx->br, BROPT_HAS_IPV6_ADDR)) 10320888d5f3Sdaniel own_querier_enabled = false; 10330888d5f3Sdaniel else 10340888d5f3Sdaniel own_querier_enabled = true; 10350888d5f3Sdaniel } else { 10360888d5f3Sdaniel own_querier_enabled = false; 10370888d5f3Sdaniel } 10380888d5f3Sdaniel 1039cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 10400888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 1041cc0fdd80SLinus Lüssing } 1042cc0fdd80SLinus Lüssing 1043adc47037SNikolay Aleksandrov static inline bool br_multicast_querier_exists(struct net_bridge_mcast *brmctx, 1044955062b0SNikolay Aleksandrov struct ethhdr *eth, 1045955062b0SNikolay Aleksandrov const struct net_bridge_mdb_entry *mdb) 1046cc0fdd80SLinus Lüssing { 1047cc0fdd80SLinus Lüssing switch (eth->h_proto) { 1048cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 1049adc47037SNikolay Aleksandrov return __br_multicast_querier_exists(brmctx, 1050adc47037SNikolay Aleksandrov &brmctx->ip4_other_query, false); 1051cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 1052cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 1053adc47037SNikolay Aleksandrov return __br_multicast_querier_exists(brmctx, 1054adc47037SNikolay Aleksandrov &brmctx->ip6_other_query, true); 1055cc0fdd80SLinus Lüssing #endif 1056cc0fdd80SLinus Lüssing default: 1057955062b0SNikolay Aleksandrov return !!mdb && br_group_is_l2(&mdb->addr); 1058cc0fdd80SLinus Lüssing } 1059b00589afSLinus Lüssing } 10601080ab95SNikolay Aleksandrov 106188d4bd18SNikolay Aleksandrov static inline bool br_multicast_is_star_g(const struct br_ip *ip) 106288d4bd18SNikolay Aleksandrov { 106388d4bd18SNikolay Aleksandrov switch (ip->proto) { 106488d4bd18SNikolay Aleksandrov case htons(ETH_P_IP): 106588d4bd18SNikolay Aleksandrov return ipv4_is_zeronet(ip->src.ip4); 106688d4bd18SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 106788d4bd18SNikolay Aleksandrov case htons(ETH_P_IPV6): 106888d4bd18SNikolay Aleksandrov return ipv6_addr_any(&ip->src.ip6); 106988d4bd18SNikolay Aleksandrov #endif 107088d4bd18SNikolay Aleksandrov default: 107188d4bd18SNikolay Aleksandrov return false; 107288d4bd18SNikolay Aleksandrov } 107388d4bd18SNikolay Aleksandrov } 107488d4bd18SNikolay Aleksandrov 1075adc47037SNikolay Aleksandrov static inline bool 1076adc47037SNikolay Aleksandrov br_multicast_should_handle_mode(const struct net_bridge_mcast *brmctx, 10778266a049SNikolay Aleksandrov __be16 proto) 10788266a049SNikolay Aleksandrov { 10798266a049SNikolay Aleksandrov switch (proto) { 10808266a049SNikolay Aleksandrov case htons(ETH_P_IP): 1081adc47037SNikolay Aleksandrov return !!(brmctx->multicast_igmp_version == 3); 10828266a049SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 10838266a049SNikolay Aleksandrov case htons(ETH_P_IPV6): 1084adc47037SNikolay Aleksandrov return !!(brmctx->multicast_mld_version == 2); 10858266a049SNikolay Aleksandrov #endif 10868266a049SNikolay Aleksandrov default: 10878266a049SNikolay Aleksandrov return false; 10888266a049SNikolay Aleksandrov } 10898266a049SNikolay Aleksandrov } 10908266a049SNikolay Aleksandrov 10911080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 10921080ab95SNikolay Aleksandrov { 10931080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 10941080ab95SNikolay Aleksandrov } 109542c11ccfSNikolay Aleksandrov 1096adc47037SNikolay Aleksandrov static inline unsigned long br_multicast_lmqt(const struct net_bridge_mcast *brmctx) 109742c11ccfSNikolay Aleksandrov { 1098adc47037SNikolay Aleksandrov return brmctx->multicast_last_member_interval * 1099adc47037SNikolay Aleksandrov brmctx->multicast_last_member_count; 110042c11ccfSNikolay Aleksandrov } 11010436862eSNikolay Aleksandrov 1102adc47037SNikolay Aleksandrov static inline unsigned long br_multicast_gmi(const struct net_bridge_mcast *brmctx) 11030436862eSNikolay Aleksandrov { 11040436862eSNikolay Aleksandrov /* use the RFC default of 2 for QRV */ 1105adc47037SNikolay Aleksandrov return 2 * brmctx->multicast_query_interval + 1106adc47037SNikolay Aleksandrov brmctx->multicast_query_response_interval; 11070436862eSNikolay Aleksandrov } 11087b54aaafSNikolay Aleksandrov 11097b54aaafSNikolay Aleksandrov static inline bool 11107b54aaafSNikolay Aleksandrov br_multicast_ctx_is_vlan(const struct net_bridge_mcast *brmctx) 11117b54aaafSNikolay Aleksandrov { 11127b54aaafSNikolay Aleksandrov return !!brmctx->vlan; 11137b54aaafSNikolay Aleksandrov } 11147b54aaafSNikolay Aleksandrov 11157b54aaafSNikolay Aleksandrov static inline bool 11167b54aaafSNikolay Aleksandrov br_multicast_port_ctx_is_vlan(const struct net_bridge_mcast_port *pmctx) 11177b54aaafSNikolay Aleksandrov { 11187b54aaafSNikolay Aleksandrov return !!pmctx->vlan; 11197b54aaafSNikolay Aleksandrov } 11207b54aaafSNikolay Aleksandrov 11217b54aaafSNikolay Aleksandrov static inline struct net_bridge_mcast * 11227b54aaafSNikolay Aleksandrov br_multicast_port_ctx_get_global(const struct net_bridge_mcast_port *pmctx) 11237b54aaafSNikolay Aleksandrov { 11247b54aaafSNikolay Aleksandrov if (!br_multicast_port_ctx_is_vlan(pmctx)) 11257b54aaafSNikolay Aleksandrov return &pmctx->port->br->multicast_ctx; 11267b54aaafSNikolay Aleksandrov else 11277b54aaafSNikolay Aleksandrov return &pmctx->vlan->brvlan->br_mcast_ctx; 11287b54aaafSNikolay Aleksandrov } 11297b54aaafSNikolay Aleksandrov 11307b54aaafSNikolay Aleksandrov static inline bool 11317b54aaafSNikolay Aleksandrov br_multicast_ctx_vlan_global_disabled(const struct net_bridge_mcast *brmctx) 11327b54aaafSNikolay Aleksandrov { 1133f4b7002aSNikolay Aleksandrov return br_opt_get(brmctx->br, BROPT_MCAST_VLAN_SNOOPING_ENABLED) && 1134f4b7002aSNikolay Aleksandrov br_multicast_ctx_is_vlan(brmctx) && 11357b54aaafSNikolay Aleksandrov !(brmctx->vlan->priv_flags & BR_VLFLAG_GLOBAL_MCAST_ENABLED); 11367b54aaafSNikolay Aleksandrov } 11377b54aaafSNikolay Aleksandrov 11387b54aaafSNikolay Aleksandrov static inline bool 11397b54aaafSNikolay Aleksandrov br_multicast_ctx_vlan_disabled(const struct net_bridge_mcast *brmctx) 11407b54aaafSNikolay Aleksandrov { 11417b54aaafSNikolay Aleksandrov return br_multicast_ctx_is_vlan(brmctx) && 11427b54aaafSNikolay Aleksandrov !(brmctx->vlan->priv_flags & BR_VLFLAG_MCAST_ENABLED); 11437b54aaafSNikolay Aleksandrov } 11447b54aaafSNikolay Aleksandrov 11457b54aaafSNikolay Aleksandrov static inline bool 11467b54aaafSNikolay Aleksandrov br_multicast_port_ctx_vlan_disabled(const struct net_bridge_mcast_port *pmctx) 11477b54aaafSNikolay Aleksandrov { 11487b54aaafSNikolay Aleksandrov return br_multicast_port_ctx_is_vlan(pmctx) && 11497b54aaafSNikolay Aleksandrov !(pmctx->vlan->priv_flags & BR_VLFLAG_MCAST_ENABLED); 11507b54aaafSNikolay Aleksandrov } 11514cdd0d10SNikolay Aleksandrov 11524cdd0d10SNikolay Aleksandrov static inline bool 11534cdd0d10SNikolay Aleksandrov br_multicast_port_ctx_state_disabled(const struct net_bridge_mcast_port *pmctx) 11544cdd0d10SNikolay Aleksandrov { 11554cdd0d10SNikolay Aleksandrov return pmctx->port->state == BR_STATE_DISABLED || 11564cdd0d10SNikolay Aleksandrov (br_multicast_port_ctx_is_vlan(pmctx) && 11574cdd0d10SNikolay Aleksandrov (br_multicast_port_ctx_vlan_disabled(pmctx) || 11584cdd0d10SNikolay Aleksandrov pmctx->vlan->state == BR_STATE_DISABLED)); 11594cdd0d10SNikolay Aleksandrov } 11604cdd0d10SNikolay Aleksandrov 11614cdd0d10SNikolay Aleksandrov static inline bool 11624cdd0d10SNikolay Aleksandrov br_multicast_port_ctx_state_stopped(const struct net_bridge_mcast_port *pmctx) 11634cdd0d10SNikolay Aleksandrov { 11644cdd0d10SNikolay Aleksandrov return br_multicast_port_ctx_state_disabled(pmctx) || 11654cdd0d10SNikolay Aleksandrov pmctx->port->state == BR_STATE_BLOCKING || 11664cdd0d10SNikolay Aleksandrov (br_multicast_port_ctx_is_vlan(pmctx) && 11674cdd0d10SNikolay Aleksandrov pmctx->vlan->state == BR_STATE_BLOCKING); 11684cdd0d10SNikolay Aleksandrov } 1169eb1d1641SHerbert Xu #else 1170f4b7002aSNikolay Aleksandrov static inline int br_multicast_rcv(struct net_bridge_mcast **brmctx, 1171f4b7002aSNikolay Aleksandrov struct net_bridge_mcast_port **pmctx, 1172f4b7002aSNikolay Aleksandrov struct net_bridge_vlan *vlan, 117306499098SVlad Yasevich struct sk_buff *skb, 117406499098SVlad Yasevich u16 vid) 1175eb1d1641SHerbert Xu { 1176eb1d1641SHerbert Xu return 0; 1177eb1d1641SHerbert Xu } 1178eb1d1641SHerbert Xu 1179adc47037SNikolay Aleksandrov static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge_mcast *brmctx, 1180fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 1181eb1d1641SHerbert Xu { 1182eb1d1641SHerbert Xu return NULL; 1183eb1d1641SHerbert Xu } 1184eb1d1641SHerbert Xu 11851080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 1186eb1d1641SHerbert Xu { 11871080ab95SNikolay Aleksandrov return 0; 1188eb1d1641SHerbert Xu } 1189eb1d1641SHerbert Xu 1190eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 1191eb1d1641SHerbert Xu { 1192eb1d1641SHerbert Xu } 1193eb1d1641SHerbert Xu 1194eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 1195eb1d1641SHerbert Xu { 1196eb1d1641SHerbert Xu } 1197eb1d1641SHerbert Xu 1198eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 1199eb1d1641SHerbert Xu { 1200eb1d1641SHerbert Xu } 1201eb1d1641SHerbert Xu 1202eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 1203eb1d1641SHerbert Xu { 1204eb1d1641SHerbert Xu } 1205eb1d1641SHerbert Xu 1206851d0a73SJoseph Huang static inline void br_multicast_join_snoopers(struct net_bridge *br) 1207851d0a73SJoseph Huang { 1208851d0a73SJoseph Huang } 1209851d0a73SJoseph Huang 1210851d0a73SJoseph Huang static inline void br_multicast_leave_snoopers(struct net_bridge *br) 1211851d0a73SJoseph Huang { 1212851d0a73SJoseph Huang } 1213851d0a73SJoseph Huang 1214eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 1215eb1d1641SHerbert Xu { 1216eb1d1641SHerbert Xu } 1217eb1d1641SHerbert Xu 1218eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 1219eb1d1641SHerbert Xu { 1220eb1d1641SHerbert Xu } 12215cb5e947SHerbert Xu 1222a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 1223a7ce45a7SNikolay Aleksandrov { 1224a7ce45a7SNikolay Aleksandrov } 1225a7ce45a7SNikolay Aleksandrov 122637b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 122737b090e6SNikolay Aleksandrov struct sk_buff *skb, 1228adc47037SNikolay Aleksandrov struct net_bridge_mcast *brmctx, 122937b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 12305cb5e947SHerbert Xu { 12315cb5e947SHerbert Xu } 12325cb5e947SHerbert Xu 1233adc47037SNikolay Aleksandrov static inline bool br_multicast_is_router(struct net_bridge_mcast *brmctx, 1234bbc6f2ccSNikolay Aleksandrov struct sk_buff *skb) 1235eb1d1641SHerbert Xu { 123603aaa9e2SGustavo A. R. Silva return false; 1237eb1d1641SHerbert Xu } 123837b090e6SNikolay Aleksandrov 1239adc47037SNikolay Aleksandrov static inline bool br_multicast_querier_exists(struct net_bridge_mcast *brmctx, 1240c43fd36fSVladimir Oltean struct ethhdr *eth, 1241c43fd36fSVladimir Oltean const struct net_bridge_mdb_entry *mdb) 1242b00589afSLinus Lüssing { 1243b00589afSLinus Lüssing return false; 1244b00589afSLinus Lüssing } 124537b090e6SNikolay Aleksandrov 1246fdb184d1SRami Rosen static inline void br_mdb_init(void) 1247fdb184d1SRami Rosen { 1248fdb184d1SRami Rosen } 124937b090e6SNikolay Aleksandrov 1250fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 1251fdb184d1SRami Rosen { 1252fdb184d1SRami Rosen } 12531080ab95SNikolay Aleksandrov 125419e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 125519e3a9c9SNikolay Aleksandrov { 125619e3a9c9SNikolay Aleksandrov return 0; 125719e3a9c9SNikolay Aleksandrov } 125819e3a9c9SNikolay Aleksandrov 125919e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 126019e3a9c9SNikolay Aleksandrov { 126119e3a9c9SNikolay Aleksandrov } 126219e3a9c9SNikolay Aleksandrov 12631080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 12641080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 1265a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 1266a65056ecSNikolay Aleksandrov u8 type, u8 dir) 12671080ab95SNikolay Aleksandrov { 12681080ab95SNikolay Aleksandrov } 12691080ab95SNikolay Aleksandrov 12701080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 12711080ab95SNikolay Aleksandrov { 12721080ab95SNikolay Aleksandrov return 0; 12731080ab95SNikolay Aleksandrov } 12741080ab95SNikolay Aleksandrov 1275b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 1276b6fe0440SIdo Schimmel { 1277b6fe0440SIdo Schimmel } 1278b6fe0440SIdo Schimmel 12791080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 12801080ab95SNikolay Aleksandrov { 12811080ab95SNikolay Aleksandrov return 0; 12821080ab95SNikolay Aleksandrov } 1283613d61dbSNikolay Aleksandrov 1284613d61dbSNikolay Aleksandrov static inline void br_multicast_ctx_init(struct net_bridge *br, 1285613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 1286613d61dbSNikolay Aleksandrov struct net_bridge_mcast *brmctx) 1287613d61dbSNikolay Aleksandrov { 1288613d61dbSNikolay Aleksandrov } 1289613d61dbSNikolay Aleksandrov 1290613d61dbSNikolay Aleksandrov static inline void br_multicast_ctx_deinit(struct net_bridge_mcast *brmctx) 1291613d61dbSNikolay Aleksandrov { 1292613d61dbSNikolay Aleksandrov } 1293613d61dbSNikolay Aleksandrov 1294613d61dbSNikolay Aleksandrov static inline void br_multicast_port_ctx_init(struct net_bridge_port *port, 1295613d61dbSNikolay Aleksandrov struct net_bridge_vlan *vlan, 1296613d61dbSNikolay Aleksandrov struct net_bridge_mcast_port *pmctx) 1297613d61dbSNikolay Aleksandrov { 1298613d61dbSNikolay Aleksandrov } 1299613d61dbSNikolay Aleksandrov 1300613d61dbSNikolay Aleksandrov static inline void br_multicast_port_ctx_deinit(struct net_bridge_mcast_port *pmctx) 1301613d61dbSNikolay Aleksandrov { 1302613d61dbSNikolay Aleksandrov } 13037b54aaafSNikolay Aleksandrov 13047b54aaafSNikolay Aleksandrov static inline void br_multicast_toggle_one_vlan(struct net_bridge_vlan *vlan, 13057b54aaafSNikolay Aleksandrov bool on) 13067b54aaafSNikolay Aleksandrov { 13077b54aaafSNikolay Aleksandrov } 1308f4b7002aSNikolay Aleksandrov 1309f4b7002aSNikolay Aleksandrov static inline void br_multicast_toggle_vlan(struct net_bridge_vlan *vlan, 1310f4b7002aSNikolay Aleksandrov bool on) 1311f4b7002aSNikolay Aleksandrov { 1312f4b7002aSNikolay Aleksandrov } 1313f4b7002aSNikolay Aleksandrov 1314f4b7002aSNikolay Aleksandrov static inline int br_multicast_toggle_vlan_snooping(struct net_bridge *br, 1315f4b7002aSNikolay Aleksandrov bool on, 1316f4b7002aSNikolay Aleksandrov struct netlink_ext_ack *extack) 1317f4b7002aSNikolay Aleksandrov { 1318f4b7002aSNikolay Aleksandrov return -EOPNOTSUPP; 1319f4b7002aSNikolay Aleksandrov } 13209dee572cSNikolay Aleksandrov 13219dee572cSNikolay Aleksandrov static inline bool br_multicast_toggle_global_vlan(struct net_bridge_vlan *vlan, 13229dee572cSNikolay Aleksandrov bool on) 13239dee572cSNikolay Aleksandrov { 13249dee572cSNikolay Aleksandrov return false; 13259dee572cSNikolay Aleksandrov } 13264e51bf44SVladimir Oltean 13274e51bf44SVladimir Oltean static inline int br_mdb_replay(struct net_device *br_dev, 13284e51bf44SVladimir Oltean struct net_device *dev, const void *ctx, 13294e51bf44SVladimir Oltean bool adding, struct notifier_block *nb, 13304e51bf44SVladimir Oltean struct netlink_ext_ack *extack) 13314e51bf44SVladimir Oltean { 13324e51bf44SVladimir Oltean return -EOPNOTSUPP; 13334e51bf44SVladimir Oltean } 133485b35269SSridhar Samudrala #endif 1335eb1d1641SHerbert Xu 1336243a2e63SVlad Yasevich /* br_vlan.c */ 1337243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 133877751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 133977751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 1340f4b7002aSNikolay Aleksandrov u16 *vid, u8 *state, 1341f4b7002aSNikolay Aleksandrov struct net_bridge_vlan **vlan); 134277751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 134385f46c6bSVlad Yasevich const struct sk_buff *skb); 1344e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 1345348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 134611538d03SRoopa Prabhu const struct net_bridge_port *port, 13472594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 134878851988SVlad Yasevich struct sk_buff *skb); 1349f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1350169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1351348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 1352348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 13532594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 1354204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 13559e781401SVladimir Oltean int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val, 13569e781401SVladimir Oltean struct netlink_ext_ack *extack); 1357dcbdf135SVladimir Oltean int __br_vlan_set_proto(struct net_bridge *br, __be16 proto, 1358dcbdf135SVladimir Oltean struct netlink_ext_ack *extack); 13599e781401SVladimir Oltean int br_vlan_set_proto(struct net_bridge *br, unsigned long val, 13609e781401SVladimir Oltean struct netlink_ext_ack *extack); 13616dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 13629163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 13635be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 13649e781401SVladimir Oltean int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val, 13659e781401SVladimir Oltean struct netlink_ext_ack *extack); 1366169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 1367169327d5SPetr Machata struct netlink_ext_ack *extack); 1368f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1369169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1370348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 1371348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 1372169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 13732594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 1374a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 1375281cc284SHeiner Kallweit struct pcpu_sw_netstats *stats); 13769c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 1377091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 13789c0ec2e7SMike Manning void *ptr); 13798dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void); 13808dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void); 1381cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 1382cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1383cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1384cf5bddb9SNikolay Aleksandrov int cmd); 13854e51bf44SVladimir Oltean int br_vlan_replay(struct net_device *br_dev, struct net_device *dev, 13864e51bf44SVladimir Oltean const void *ctx, bool adding, struct notifier_block *nb, 13874e51bf44SVladimir Oltean struct netlink_ext_ack *extack); 1388a5d29ae2SNikolay Aleksandrov bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1389a5d29ae2SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 1390a37b85c9SVlad Yasevich 1391bcf2766bSFelix Fietkau void br_vlan_fill_forward_path_pvid(struct net_bridge *br, 1392bcf2766bSFelix Fietkau struct net_device_path_ctx *ctx, 1393bcf2766bSFelix Fietkau struct net_device_path *path); 1394bcf2766bSFelix Fietkau int br_vlan_fill_forward_path_mode(struct net_bridge *br, 1395bcf2766bSFelix Fietkau struct net_bridge_port *dst, 1396bcf2766bSFelix Fietkau struct net_device_path *path); 1397bcf2766bSFelix Fietkau 13982594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 1399a37b85c9SVlad Yasevich const struct net_bridge *br) 1400a37b85c9SVlad Yasevich { 1401907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 1402a37b85c9SVlad Yasevich } 1403a37b85c9SVlad Yasevich 14042594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 1405a37b85c9SVlad Yasevich const struct net_bridge_port *p) 1406a37b85c9SVlad Yasevich { 1407907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 1408907b1e6eSNikolay Aleksandrov } 1409907b1e6eSNikolay Aleksandrov 1410907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1411907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1412907b1e6eSNikolay Aleksandrov { 1413907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 1414907b1e6eSNikolay Aleksandrov } 1415907b1e6eSNikolay Aleksandrov 1416907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1417907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1418907b1e6eSNikolay Aleksandrov { 1419907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 1420a37b85c9SVlad Yasevich } 1421a37b85c9SVlad Yasevich 1422a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 1423a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 1424a37b85c9SVlad Yasevich */ 1425a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 1426a37b85c9SVlad Yasevich { 1427a37b85c9SVlad Yasevich int err = 0; 1428a37b85c9SVlad Yasevich 14292594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 14305978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 14312594e906SNikolay Aleksandrov } else { 1432a37b85c9SVlad Yasevich *vid = 0; 1433a37b85c9SVlad Yasevich err = -EINVAL; 1434a37b85c9SVlad Yasevich } 1435a37b85c9SVlad Yasevich 1436a37b85c9SVlad Yasevich return err; 1437a37b85c9SVlad Yasevich } 143878851988SVlad Yasevich 143977751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 144078851988SVlad Yasevich { 144177751ee8SNikolay Aleksandrov if (!vg) 14425be5a2dfSVlad Yasevich return 0; 14435be5a2dfSVlad Yasevich 144478851988SVlad Yasevich smp_rmb(); 144577751ee8SNikolay Aleksandrov return vg->pvid; 144678851988SVlad Yasevich } 144778851988SVlad Yasevich 14488dcea187SNikolay Aleksandrov static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) 14498dcea187SNikolay Aleksandrov { 14508dcea187SNikolay Aleksandrov return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags; 14518dcea187SNikolay Aleksandrov } 1452243a2e63SVlad Yasevich #else 145377751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 145477751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 14552594e906SNikolay Aleksandrov struct sk_buff *skb, 1456f4b7002aSNikolay Aleksandrov u16 *vid, u8 *state, 1457f4b7002aSNikolay Aleksandrov struct net_bridge_vlan **vlan) 1458f4b7002aSNikolay Aleksandrov 14592594e906SNikolay Aleksandrov { 1460f4b7002aSNikolay Aleksandrov *vlan = NULL; 14612594e906SNikolay Aleksandrov return true; 14622594e906SNikolay Aleksandrov } 14632594e906SNikolay Aleksandrov 14642594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 146585f46c6bSVlad Yasevich const struct sk_buff *skb) 146685f46c6bSVlad Yasevich { 146785f46c6bSVlad Yasevich return true; 146885f46c6bSVlad Yasevich } 146985f46c6bSVlad Yasevich 1470e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 1471e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 1472e0d7968aSToshiaki Makita { 1473e0d7968aSToshiaki Makita return true; 1474e0d7968aSToshiaki Makita } 1475e0d7968aSToshiaki Makita 147678851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 147711538d03SRoopa Prabhu const struct net_bridge_port *port, 14782594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 147978851988SVlad Yasevich struct sk_buff *skb) 148078851988SVlad Yasevich { 148178851988SVlad Yasevich return skb; 148278851988SVlad Yasevich } 148378851988SVlad Yasevich 1484f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1485169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1486243a2e63SVlad Yasevich { 1487f418af63SNikolay Aleksandrov *changed = false; 1488243a2e63SVlad Yasevich return -EOPNOTSUPP; 1489243a2e63SVlad Yasevich } 1490243a2e63SVlad Yasevich 1491243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 1492243a2e63SVlad Yasevich { 1493243a2e63SVlad Yasevich return -EOPNOTSUPP; 1494243a2e63SVlad Yasevich } 1495243a2e63SVlad Yasevich 1496243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1497243a2e63SVlad Yasevich { 1498243a2e63SVlad Yasevich } 1499243a2e63SVlad Yasevich 1500204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1501204177f3SToshiaki Makita { 1502204177f3SToshiaki Makita } 1503204177f3SToshiaki Makita 15045be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 15058580e211SToshiaki Makita { 15065be5a2dfSVlad Yasevich return 0; 15078580e211SToshiaki Makita } 15088580e211SToshiaki Makita 1509f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1510169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1511243a2e63SVlad Yasevich { 1512f418af63SNikolay Aleksandrov *changed = false; 1513243a2e63SVlad Yasevich return -EOPNOTSUPP; 1514243a2e63SVlad Yasevich } 1515243a2e63SVlad Yasevich 1516243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1517243a2e63SVlad Yasevich { 1518243a2e63SVlad Yasevich return -EOPNOTSUPP; 1519243a2e63SVlad Yasevich } 1520243a2e63SVlad Yasevich 1521243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1522243a2e63SVlad Yasevich { 1523243a2e63SVlad Yasevich } 1524243a2e63SVlad Yasevich 15252594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 15262594e906SNikolay Aleksandrov u16 vid) 1527a37b85c9SVlad Yasevich { 1528a37b85c9SVlad Yasevich return NULL; 1529a37b85c9SVlad Yasevich } 1530bc9a25d2SVlad Yasevich 1531169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1532169327d5SPetr Machata struct netlink_ext_ack *extack) 15335be5a2dfSVlad Yasevich { 15345be5a2dfSVlad Yasevich return 0; 15355be5a2dfSVlad Yasevich } 15365be5a2dfSVlad Yasevich 153778851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1538a37b85c9SVlad Yasevich { 1539a37b85c9SVlad Yasevich return 0; 1540a37b85c9SVlad Yasevich } 15412594e906SNikolay Aleksandrov 154277751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 154378851988SVlad Yasevich { 15443df6bf45SVlad Yasevich return 0; 154578851988SVlad Yasevich } 15462796d0c6SVlad Yasevich 15477a572964SVladimir Oltean static inline int br_vlan_filter_toggle(struct net_bridge *br, 1548c97f47e3SVladimir Oltean unsigned long val, 1549c97f47e3SVladimir Oltean struct netlink_ext_ack *extack) 1550a7854037SNikolay Aleksandrov { 1551a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1552a7854037SNikolay Aleksandrov } 15532594e906SNikolay Aleksandrov 15542594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 15552594e906SNikolay Aleksandrov u32 filter_mask) 15562594e906SNikolay Aleksandrov { 15572594e906SNikolay Aleksandrov return 0; 15582594e906SNikolay Aleksandrov } 15592594e906SNikolay Aleksandrov 1560bcf2766bSFelix Fietkau static inline void br_vlan_fill_forward_path_pvid(struct net_bridge *br, 1561bcf2766bSFelix Fietkau struct net_device_path_ctx *ctx, 1562bcf2766bSFelix Fietkau struct net_device_path *path) 1563bcf2766bSFelix Fietkau { 1564bcf2766bSFelix Fietkau } 1565bcf2766bSFelix Fietkau 1566bcf2766bSFelix Fietkau static inline int br_vlan_fill_forward_path_mode(struct net_bridge *br, 1567bcf2766bSFelix Fietkau struct net_bridge_port *dst, 1568bcf2766bSFelix Fietkau struct net_device_path *path) 1569bcf2766bSFelix Fietkau { 1570bcf2766bSFelix Fietkau return 0; 1571bcf2766bSFelix Fietkau } 1572bcf2766bSFelix Fietkau 15732594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 15742594e906SNikolay Aleksandrov const struct net_bridge *br) 15752594e906SNikolay Aleksandrov { 15762594e906SNikolay Aleksandrov return NULL; 15772594e906SNikolay Aleksandrov } 15782594e906SNikolay Aleksandrov 15792594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 15802594e906SNikolay Aleksandrov const struct net_bridge_port *p) 15812594e906SNikolay Aleksandrov { 15822594e906SNikolay Aleksandrov return NULL; 15832594e906SNikolay Aleksandrov } 1584907b1e6eSNikolay Aleksandrov 1585907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1586907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1587907b1e6eSNikolay Aleksandrov { 1588907b1e6eSNikolay Aleksandrov return NULL; 1589907b1e6eSNikolay Aleksandrov } 1590907b1e6eSNikolay Aleksandrov 1591907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1592907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1593907b1e6eSNikolay Aleksandrov { 1594907b1e6eSNikolay Aleksandrov return NULL; 1595907b1e6eSNikolay Aleksandrov } 1596a60c0903SNikolay Aleksandrov 1597a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1598281cc284SHeiner Kallweit struct pcpu_sw_netstats *stats) 1599a60c0903SNikolay Aleksandrov { 1600a60c0903SNikolay Aleksandrov } 16019c0ec2e7SMike Manning 16029c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 16039c0ec2e7SMike Manning unsigned long event) 16049c0ec2e7SMike Manning { 16059c0ec2e7SMike Manning } 16069c0ec2e7SMike Manning 1607091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 16089c0ec2e7SMike Manning unsigned long event, void *ptr) 16099c0ec2e7SMike Manning { 1610091adf9bSNikolay Aleksandrov return 0; 16119c0ec2e7SMike Manning } 16128dcea187SNikolay Aleksandrov 16138dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_init(void) 16148dcea187SNikolay Aleksandrov { 16158dcea187SNikolay Aleksandrov } 16168dcea187SNikolay Aleksandrov 16178dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_uninit(void) 16188dcea187SNikolay Aleksandrov { 16198dcea187SNikolay Aleksandrov } 1620cf5bddb9SNikolay Aleksandrov 1621cf5bddb9SNikolay Aleksandrov static inline void br_vlan_notify(const struct net_bridge *br, 1622cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1623cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1624cf5bddb9SNikolay Aleksandrov int cmd) 1625cf5bddb9SNikolay Aleksandrov { 1626cf5bddb9SNikolay Aleksandrov } 1627528ae84aSNikolay Aleksandrov 1628528ae84aSNikolay Aleksandrov static inline bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1629528ae84aSNikolay Aleksandrov const struct net_bridge_vlan *range_end) 1630528ae84aSNikolay Aleksandrov { 1631528ae84aSNikolay Aleksandrov return true; 1632528ae84aSNikolay Aleksandrov } 16334e51bf44SVladimir Oltean 16344e51bf44SVladimir Oltean static inline int br_vlan_replay(struct net_device *br_dev, 16354e51bf44SVladimir Oltean struct net_device *dev, const void *ctx, 16364e51bf44SVladimir Oltean bool adding, struct notifier_block *nb, 16374e51bf44SVladimir Oltean struct netlink_ext_ack *extack) 16384e51bf44SVladimir Oltean { 16394e51bf44SVladimir Oltean return -EOPNOTSUPP; 16404e51bf44SVladimir Oltean } 1641243a2e63SVlad Yasevich #endif 1642243a2e63SVlad Yasevich 16437a53e718SNikolay Aleksandrov /* br_vlan_options.c */ 16447a53e718SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 164599f7c5e0SNikolay Aleksandrov bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, 164699f7c5e0SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 16477a53e718SNikolay Aleksandrov bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v); 16487a53e718SNikolay Aleksandrov size_t br_vlan_opts_nl_size(void); 1649a5d29ae2SNikolay Aleksandrov int br_vlan_process_options(const struct net_bridge *br, 1650a5d29ae2SNikolay Aleksandrov const struct net_bridge_port *p, 1651a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_start, 1652a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_end, 1653a5d29ae2SNikolay Aleksandrov struct nlattr **tb, 1654a5d29ae2SNikolay Aleksandrov struct netlink_ext_ack *extack); 165547ecd2dbSNikolay Aleksandrov int br_vlan_rtm_process_global_options(struct net_device *dev, 165647ecd2dbSNikolay Aleksandrov const struct nlattr *attr, 165747ecd2dbSNikolay Aleksandrov int cmd, 165847ecd2dbSNikolay Aleksandrov struct netlink_ext_ack *extack); 1659743a53d9SNikolay Aleksandrov bool br_vlan_global_opts_can_enter_range(const struct net_bridge_vlan *v_curr, 1660743a53d9SNikolay Aleksandrov const struct net_bridge_vlan *r_end); 1661743a53d9SNikolay Aleksandrov bool br_vlan_global_opts_fill(struct sk_buff *skb, u16 vid, u16 vid_range, 1662743a53d9SNikolay Aleksandrov const struct net_bridge_vlan *v_opts); 1663a580c76dSNikolay Aleksandrov 1664a580c76dSNikolay Aleksandrov /* vlan state manipulation helpers using *_ONCE to annotate lock-free access */ 1665a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v) 1666a580c76dSNikolay Aleksandrov { 1667a580c76dSNikolay Aleksandrov return READ_ONCE(v->state); 1668a580c76dSNikolay Aleksandrov } 1669a580c76dSNikolay Aleksandrov 1670a580c76dSNikolay Aleksandrov static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state) 1671a580c76dSNikolay Aleksandrov { 1672a580c76dSNikolay Aleksandrov WRITE_ONCE(v->state, state); 1673a580c76dSNikolay Aleksandrov } 1674a580c76dSNikolay Aleksandrov 1675a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg) 1676a580c76dSNikolay Aleksandrov { 1677a580c76dSNikolay Aleksandrov return READ_ONCE(vg->pvid_state); 1678a580c76dSNikolay Aleksandrov } 1679a580c76dSNikolay Aleksandrov 1680a580c76dSNikolay Aleksandrov static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg, 1681a580c76dSNikolay Aleksandrov u8 state) 1682a580c76dSNikolay Aleksandrov { 1683a580c76dSNikolay Aleksandrov WRITE_ONCE(vg->pvid_state, state); 1684a580c76dSNikolay Aleksandrov } 1685a580c76dSNikolay Aleksandrov 1686a580c76dSNikolay Aleksandrov /* learn_allow is true at ingress and false at egress */ 1687a580c76dSNikolay Aleksandrov static inline bool br_vlan_state_allowed(u8 state, bool learn_allow) 1688a580c76dSNikolay Aleksandrov { 1689a580c76dSNikolay Aleksandrov switch (state) { 1690a580c76dSNikolay Aleksandrov case BR_STATE_LEARNING: 1691a580c76dSNikolay Aleksandrov return learn_allow; 1692a580c76dSNikolay Aleksandrov case BR_STATE_FORWARDING: 1693a580c76dSNikolay Aleksandrov return true; 1694a580c76dSNikolay Aleksandrov default: 1695a580c76dSNikolay Aleksandrov return false; 1696a580c76dSNikolay Aleksandrov } 1697a580c76dSNikolay Aleksandrov } 16987a53e718SNikolay Aleksandrov #endif 16997a53e718SNikolay Aleksandrov 17001a4ba64dSPablo Neira Ayuso struct nf_br_ops { 17011a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 17021a4ba64dSPablo Neira Ayuso }; 17031a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 17041a4ba64dSPablo Neira Ayuso 17051da177e4SLinus Torvalds /* br_netfilter.c */ 170634666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 170734666d46SPablo Neira Ayuso int br_nf_core_init(void); 170834666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1709348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1710c0909713SStephen Hemminger #else 171134666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 171234666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 17134adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1714c0909713SStephen Hemminger #endif 17151da177e4SLinus Torvalds 17161da177e4SLinus Torvalds /* br_stp.c */ 1717775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1718348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1719348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1720348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 17211da177e4SLinus Torvalds 1722348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1723348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1724348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1725348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 172682dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 17279e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 172814f98f25Sstephen hemminger 172914f98f25Sstephen hemminger 17301da177e4SLinus Torvalds /* br_stp_if.c */ 1731348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1732348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1733419dba8aSHoratiu Vultur int br_stp_set_enabled(struct net_bridge *br, unsigned long val, 1734419dba8aSHoratiu Vultur struct netlink_ext_ack *extack); 1735348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1736348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1737348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1738348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1739348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1740348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1741348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1742348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 17431da177e4SLinus Torvalds 17441da177e4SLinus Torvalds /* br_stp_bpdu.c */ 17457c85fbf0SPatrick McHardy struct stp_proto; 1746348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 17477c85fbf0SPatrick McHardy struct net_device *dev); 17481da177e4SLinus Torvalds 17491da177e4SLinus Torvalds /* br_stp_timer.c */ 1750348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1751348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1752348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 17531da177e4SLinus Torvalds 17541da177e4SLinus Torvalds /* br.c */ 1755e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1756da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1757da678292SMichał Mirosław #endif 17581da177e4SLinus Torvalds 175965369933SHoratiu Vultur /* br_mrp.c */ 176065369933SHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 176165369933SHoratiu Vultur int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 176265369933SHoratiu Vultur struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 176365369933SHoratiu Vultur bool br_mrp_enabled(struct net_bridge *br); 176465369933SHoratiu Vultur void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p); 1765df42ef22SHoratiu Vultur int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br); 176665369933SHoratiu Vultur #else 176765369933SHoratiu Vultur static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 176865369933SHoratiu Vultur struct nlattr *attr, int cmd, 176965369933SHoratiu Vultur struct netlink_ext_ack *extack) 177065369933SHoratiu Vultur { 177165369933SHoratiu Vultur return -EOPNOTSUPP; 177265369933SHoratiu Vultur } 177365369933SHoratiu Vultur 177465369933SHoratiu Vultur static inline bool br_mrp_enabled(struct net_bridge *br) 177565369933SHoratiu Vultur { 17768741e184SJason Yan return false; 177765369933SHoratiu Vultur } 177865369933SHoratiu Vultur 177965369933SHoratiu Vultur static inline void br_mrp_port_del(struct net_bridge *br, 178065369933SHoratiu Vultur struct net_bridge_port *p) 178165369933SHoratiu Vultur { 178265369933SHoratiu Vultur } 1783df42ef22SHoratiu Vultur 1784df42ef22SHoratiu Vultur static inline int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br) 1785df42ef22SHoratiu Vultur { 1786df42ef22SHoratiu Vultur return 0; 1787df42ef22SHoratiu Vultur } 1788df42ef22SHoratiu Vultur 178965369933SHoratiu Vultur #endif 179065369933SHoratiu Vultur 17912be665c3SHenrik Bjoernlund /* br_cfm.c */ 179286a14b79SHenrik Bjoernlund #if IS_ENABLED(CONFIG_BRIDGE_CFM) 17932be665c3SHenrik Bjoernlund int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p, 17942be665c3SHenrik Bjoernlund struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 17952be665c3SHenrik Bjoernlund bool br_cfm_created(struct net_bridge *br); 179686a14b79SHenrik Bjoernlund void br_cfm_port_del(struct net_bridge *br, struct net_bridge_port *p); 17975e312fc0SHenrik Bjoernlund int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br); 1798b6d0425bSHenrik Bjoernlund int br_cfm_status_fill_info(struct sk_buff *skb, 1799b6d0425bSHenrik Bjoernlund struct net_bridge *br, 1800b6d0425bSHenrik Bjoernlund bool getlink); 1801b6d0425bSHenrik Bjoernlund int br_cfm_mep_count(struct net_bridge *br, u32 *count); 1802b6d0425bSHenrik Bjoernlund int br_cfm_peer_mep_count(struct net_bridge *br, u32 *count); 180386a14b79SHenrik Bjoernlund #else 18042be665c3SHenrik Bjoernlund static inline int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p, 18052be665c3SHenrik Bjoernlund struct nlattr *attr, int cmd, 18062be665c3SHenrik Bjoernlund struct netlink_ext_ack *extack) 18072be665c3SHenrik Bjoernlund { 18082be665c3SHenrik Bjoernlund return -EOPNOTSUPP; 18092be665c3SHenrik Bjoernlund } 18102be665c3SHenrik Bjoernlund 18112be665c3SHenrik Bjoernlund static inline bool br_cfm_created(struct net_bridge *br) 18122be665c3SHenrik Bjoernlund { 18132be665c3SHenrik Bjoernlund return false; 18142be665c3SHenrik Bjoernlund } 18152be665c3SHenrik Bjoernlund 181686a14b79SHenrik Bjoernlund static inline void br_cfm_port_del(struct net_bridge *br, 181786a14b79SHenrik Bjoernlund struct net_bridge_port *p) 181886a14b79SHenrik Bjoernlund { 181986a14b79SHenrik Bjoernlund } 18205e312fc0SHenrik Bjoernlund 18215e312fc0SHenrik Bjoernlund static inline int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br) 18225e312fc0SHenrik Bjoernlund { 18235e312fc0SHenrik Bjoernlund return -EOPNOTSUPP; 18245e312fc0SHenrik Bjoernlund } 1825e77824d8SHenrik Bjoernlund 1826b6d0425bSHenrik Bjoernlund static inline int br_cfm_status_fill_info(struct sk_buff *skb, 1827b6d0425bSHenrik Bjoernlund struct net_bridge *br, 1828b6d0425bSHenrik Bjoernlund bool getlink) 1829b6d0425bSHenrik Bjoernlund { 1830b6d0425bSHenrik Bjoernlund return -EOPNOTSUPP; 1831b6d0425bSHenrik Bjoernlund } 1832b6d0425bSHenrik Bjoernlund 1833b6d0425bSHenrik Bjoernlund static inline int br_cfm_mep_count(struct net_bridge *br, u32 *count) 1834b6d0425bSHenrik Bjoernlund { 1835b6d0425bSHenrik Bjoernlund return -EOPNOTSUPP; 1836b6d0425bSHenrik Bjoernlund } 1837b6d0425bSHenrik Bjoernlund 1838b6d0425bSHenrik Bjoernlund static inline int br_cfm_peer_mep_count(struct net_bridge *br, u32 *count) 1839e77824d8SHenrik Bjoernlund { 1840e77824d8SHenrik Bjoernlund return -EOPNOTSUPP; 1841e77824d8SHenrik Bjoernlund } 184286a14b79SHenrik Bjoernlund #endif 184386a14b79SHenrik Bjoernlund 184411dc1f36SStephen Hemminger /* br_netlink.c */ 1845149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1846348662a1SJoe Perches int br_netlink_init(void); 1847348662a1SJoe Perches void br_netlink_fini(void); 184892899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 184992899063SNikolay Aleksandrov const struct net_bridge_port *port); 1850b6d0425bSHenrik Bjoernlund void br_info_notify(int event, const struct net_bridge *br, 1851b6d0425bSHenrik Bjoernlund const struct net_bridge_port *port, u32 filter); 18522fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 18532fd527b7SPetr Machata struct netlink_ext_ack *extack); 1854add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1855348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 185646c264daSNicolas Dichtel u32 filter_mask, int nlflags); 1857f26b2965SNikolay Aleksandrov int br_process_vlan_info(struct net_bridge *br, 1858f26b2965SNikolay Aleksandrov struct net_bridge_port *p, int cmd, 1859f26b2965SNikolay Aleksandrov struct bridge_vlan_info *vinfo_curr, 1860f26b2965SNikolay Aleksandrov struct bridge_vlan_info **vinfo_last, 1861f26b2965SNikolay Aleksandrov bool *changed, 1862f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack); 186311dc1f36SStephen Hemminger 18641da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 18651da177e4SLinus Torvalds /* br_sysfs_if.c */ 186652cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1867348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1868348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 18691da177e4SLinus Torvalds 18701da177e4SLinus Torvalds /* br_sysfs_br.c */ 1871348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1872348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 18731da177e4SLinus Torvalds 18741da177e4SLinus Torvalds #else 18751da177e4SLinus Torvalds 18760cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 18770cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 18780cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 18790cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 18801da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 18811da177e4SLinus Torvalds 18826bc506b4SIdo Schimmel /* br_switchdev.c */ 18836bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 188447211192STobias Waldekranz bool br_switchdev_frame_uses_tx_fwd_offload(struct sk_buff *skb); 188547211192STobias Waldekranz 1886c5381154SVladimir Oltean void br_switchdev_frame_set_offload_fwd_mark(struct sk_buff *skb); 1887c5381154SVladimir Oltean 188847211192STobias Waldekranz void nbp_switchdev_frame_mark_tx_fwd_offload(const struct net_bridge_port *p, 188947211192STobias Waldekranz struct sk_buff *skb); 189047211192STobias Waldekranz void nbp_switchdev_frame_mark_tx_fwd_to_hwdom(const struct net_bridge_port *p, 189147211192STobias Waldekranz struct sk_buff *skb); 18926bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 18936bc506b4SIdo Schimmel struct sk_buff *skb); 18946bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 18956bc506b4SIdo Schimmel const struct sk_buff *skb); 18963922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 18973922285dSArkadi Sharshevsky unsigned long flags, 1898078bbb85SVladimir Oltean unsigned long mask, 1899078bbb85SVladimir Oltean struct netlink_ext_ack *extack); 19006eb38bf8STobias Waldekranz void br_switchdev_fdb_notify(struct net_bridge *br, 19016eb38bf8STobias Waldekranz const struct net_bridge_fdb_entry *fdb, int type); 1902169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1903169327d5SPetr Machata struct netlink_ext_ack *extack); 1904d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 190585826610STobias Waldekranz void br_switchdev_init(struct net_bridge *br); 1906f1c2eddfSIdo Schimmel 1907f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1908f1c2eddfSIdo Schimmel { 1909f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1910f1c2eddfSIdo Schimmel } 19116bc506b4SIdo Schimmel #else 191247211192STobias Waldekranz static inline bool br_switchdev_frame_uses_tx_fwd_offload(struct sk_buff *skb) 191347211192STobias Waldekranz { 191447211192STobias Waldekranz return false; 191547211192STobias Waldekranz } 191647211192STobias Waldekranz 1917c5381154SVladimir Oltean static inline void br_switchdev_frame_set_offload_fwd_mark(struct sk_buff *skb) 1918c5381154SVladimir Oltean { 1919c5381154SVladimir Oltean } 1920c5381154SVladimir Oltean 192147211192STobias Waldekranz static inline void 192247211192STobias Waldekranz nbp_switchdev_frame_mark_tx_fwd_offload(const struct net_bridge_port *p, 192347211192STobias Waldekranz struct sk_buff *skb) 192447211192STobias Waldekranz { 192547211192STobias Waldekranz } 192647211192STobias Waldekranz 192747211192STobias Waldekranz static inline void 192847211192STobias Waldekranz nbp_switchdev_frame_mark_tx_fwd_to_hwdom(const struct net_bridge_port *p, 192947211192STobias Waldekranz struct sk_buff *skb) 193047211192STobias Waldekranz { 193147211192STobias Waldekranz } 193247211192STobias Waldekranz 19336bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 19346bc506b4SIdo Schimmel struct sk_buff *skb) 19356bc506b4SIdo Schimmel { 19366bc506b4SIdo Schimmel } 19376bc506b4SIdo Schimmel 19386bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 19396bc506b4SIdo Schimmel const struct sk_buff *skb) 19406bc506b4SIdo Schimmel { 19416bc506b4SIdo Schimmel return true; 19426bc506b4SIdo Schimmel } 19433922285dSArkadi Sharshevsky 19443922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 19453922285dSArkadi Sharshevsky unsigned long flags, 1946078bbb85SVladimir Oltean unsigned long mask, 1947078bbb85SVladimir Oltean struct netlink_ext_ack *extack) 19483922285dSArkadi Sharshevsky { 19493922285dSArkadi Sharshevsky return 0; 19503922285dSArkadi Sharshevsky } 19516b26b51bSArkadi Sharshevsky 1952d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1953169327d5SPetr Machata u16 vid, u16 flags, 1954169327d5SPetr Machata struct netlink_ext_ack *extack) 1955d66e4348SPetr Machata { 1956d66e4348SPetr Machata return -EOPNOTSUPP; 1957d66e4348SPetr Machata } 1958d66e4348SPetr Machata 1959d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1960d66e4348SPetr Machata { 1961d66e4348SPetr Machata return -EOPNOTSUPP; 1962d66e4348SPetr Machata } 1963d66e4348SPetr Machata 19646b26b51bSArkadi Sharshevsky static inline void 19656eb38bf8STobias Waldekranz br_switchdev_fdb_notify(struct net_bridge *br, 19666eb38bf8STobias Waldekranz const struct net_bridge_fdb_entry *fdb, int type) 19676b26b51bSArkadi Sharshevsky { 19686b26b51bSArkadi Sharshevsky } 1969f1c2eddfSIdo Schimmel 1970f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1971f1c2eddfSIdo Schimmel { 1972f1c2eddfSIdo Schimmel } 197385826610STobias Waldekranz 197485826610STobias Waldekranz static inline void br_switchdev_init(struct net_bridge *br) 197585826610STobias Waldekranz { 197685826610STobias Waldekranz } 197785826610STobias Waldekranz 19786bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 19796bc506b4SIdo Schimmel 1980057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1981821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1982057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1983057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1984ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1985ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1986ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 19871da177e4SLinus Torvalds #endif 1988