12874c5fdSThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-or-later */ 21da177e4SLinus Torvalds /* 31da177e4SLinus Torvalds * Linux ethernet bridge 41da177e4SLinus Torvalds * 51da177e4SLinus Torvalds * Authors: 61da177e4SLinus Torvalds * Lennert Buytenhek <buytenh@gnu.org> 71da177e4SLinus Torvalds */ 81da177e4SLinus Torvalds 91da177e4SLinus Torvalds #ifndef _BR_PRIVATE_H 101da177e4SLinus Torvalds #define _BR_PRIVATE_H 111da177e4SLinus Torvalds 121da177e4SLinus Torvalds #include <linux/netdevice.h> 131da177e4SLinus Torvalds #include <linux/if_bridge.h> 1491d2c34aSHerbert Xu #include <linux/netpoll.h> 15406818ffSEric Dumazet #include <linux/u64_stats_sync.h> 164adf0af6SSimon Wunderlich #include <net/route.h> 17efb6de9bSBernhard Thaler #include <net/ip6_fib.h> 18243a2e63SVlad Yasevich #include <linux/if_vlan.h> 192594e906SNikolay Aleksandrov #include <linux/rhashtable.h> 2025127759SReshetova, Elena #include <linux/refcount.h> 211da177e4SLinus Torvalds 221da177e4SLinus Torvalds #define BR_HASH_BITS 8 231da177e4SLinus Torvalds #define BR_HASH_SIZE (1 << BR_HASH_BITS) 241da177e4SLinus Torvalds 251da177e4SLinus Torvalds #define BR_HOLD_TIME (1*HZ) 261da177e4SLinus Torvalds 271da177e4SLinus Torvalds #define BR_PORT_BITS 10 281da177e4SLinus Torvalds #define BR_MAX_PORTS (1<<BR_PORT_BITS) 291da177e4SLinus Torvalds 30d08c6bc0SNikolay Aleksandrov #define BR_MULTICAST_DEFAULT_HASH_MAX 4096 31d08c6bc0SNikolay Aleksandrov 329cde0708SStephen Hemminger #define BR_VERSION "2.3" 339cde0708SStephen Hemminger 34515853ccSstephen hemminger /* Control of forwarding link local multicast */ 35515853ccSstephen hemminger #define BR_GROUPFWD_DEFAULT 0 36784b58a3SBernhard Thaler /* Don't allow forwarding of control protocols like STP, MAC PAUSE and LACP */ 375af48b59SNikolay Aleksandrov enum { 385af48b59SNikolay Aleksandrov BR_GROUPFWD_STP = BIT(0), 395af48b59SNikolay Aleksandrov BR_GROUPFWD_MACPAUSE = BIT(1), 405af48b59SNikolay Aleksandrov BR_GROUPFWD_LACP = BIT(2), 415af48b59SNikolay Aleksandrov }; 425af48b59SNikolay Aleksandrov 435af48b59SNikolay Aleksandrov #define BR_GROUPFWD_RESTRICTED (BR_GROUPFWD_STP | BR_GROUPFWD_MACPAUSE | \ 445af48b59SNikolay Aleksandrov BR_GROUPFWD_LACP) 45f2808d22SToshiaki Makita /* The Nearest Customer Bridge Group Address, 01-80-C2-00-00-[00,0B,0C,0D,0F] */ 46f2808d22SToshiaki Makita #define BR_GROUPFWD_8021AD 0xB801u 47515853ccSstephen hemminger 489cde0708SStephen Hemminger /* Path to usermode spanning tree program */ 499cde0708SStephen Hemminger #define BR_STP_PROG "/sbin/bridge-stp" 508cbb512eSStephen Hemminger 5131cbc39bSNikolay Aleksandrov #define BR_FDB_NOTIFY_SETTABLE_BITS (FDB_NOTIFY_BIT | FDB_NOTIFY_INACTIVE_BIT) 5231cbc39bSNikolay Aleksandrov 531da177e4SLinus Torvalds typedef struct bridge_id bridge_id; 541da177e4SLinus Torvalds typedef struct mac_addr mac_addr; 551da177e4SLinus Torvalds typedef __u16 port_id; 561da177e4SLinus Torvalds 571c1cb6d0SNikolay Aleksandrov struct bridge_id { 581da177e4SLinus Torvalds unsigned char prio[2]; 59e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 601da177e4SLinus Torvalds }; 611da177e4SLinus Torvalds 621c1cb6d0SNikolay Aleksandrov struct mac_addr { 63e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 641da177e4SLinus Torvalds }; 651da177e4SLinus Torvalds 66cc0fdd80SLinus Lüssing #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 67cc0fdd80SLinus Lüssing /* our own querier */ 6890010b36SLinus Lüssing struct bridge_mcast_own_query { 69cc0fdd80SLinus Lüssing struct timer_list timer; 70cc0fdd80SLinus Lüssing u32 startup_sent; 71cc0fdd80SLinus Lüssing }; 72cc0fdd80SLinus Lüssing 73cc0fdd80SLinus Lüssing /* other querier */ 7490010b36SLinus Lüssing struct bridge_mcast_other_query { 75cc0fdd80SLinus Lüssing struct timer_list timer; 76cc0fdd80SLinus Lüssing unsigned long delay_time; 77cc0fdd80SLinus Lüssing }; 78dc4eb53aSLinus Lüssing 79dc4eb53aSLinus Lüssing /* selected querier */ 80dc4eb53aSLinus Lüssing struct bridge_mcast_querier { 81dc4eb53aSLinus Lüssing struct br_ip addr; 822cd41431SLinus Lüssing struct net_bridge_port __rcu *port; 83dc4eb53aSLinus Lüssing }; 841080ab95SNikolay Aleksandrov 851080ab95SNikolay Aleksandrov /* IGMP/MLD statistics */ 861080ab95SNikolay Aleksandrov struct bridge_mcast_stats { 871080ab95SNikolay Aleksandrov struct br_mcast_stats mstats; 881080ab95SNikolay Aleksandrov struct u64_stats_sync syncp; 891080ab95SNikolay Aleksandrov }; 90cc0fdd80SLinus Lüssing #endif 91cc0fdd80SLinus Lüssing 92efa5356bSRoopa Prabhu struct br_tunnel_info { 93efa5356bSRoopa Prabhu __be64 tunnel_id; 94efa5356bSRoopa Prabhu struct metadata_dst *tunnel_dst; 95efa5356bSRoopa Prabhu }; 96efa5356bSRoopa Prabhu 979d332e69SNikolay Aleksandrov /* private vlan flags */ 989d332e69SNikolay Aleksandrov enum { 999d332e69SNikolay Aleksandrov BR_VLFLAG_PER_PORT_STATS = BIT(0), 10027973793SIdo Schimmel BR_VLFLAG_ADDED_BY_SWITCHDEV = BIT(1), 1019d332e69SNikolay Aleksandrov }; 1029d332e69SNikolay Aleksandrov 1032594e906SNikolay Aleksandrov /** 1042594e906SNikolay Aleksandrov * struct net_bridge_vlan - per-vlan entry 1052594e906SNikolay Aleksandrov * 1062594e906SNikolay Aleksandrov * @vnode: rhashtable member 1072594e906SNikolay Aleksandrov * @vid: VLAN id 1082594e906SNikolay Aleksandrov * @flags: bridge vlan flags 1099d332e69SNikolay Aleksandrov * @priv_flags: private (in-kernel) bridge vlan flags 110a580c76dSNikolay Aleksandrov * @state: STP state (e.g. blocking, learning, forwarding) 1116dada9b1SNikolay Aleksandrov * @stats: per-cpu VLAN statistics 1122594e906SNikolay Aleksandrov * @br: if MASTER flag set, this points to a bridge struct 1132594e906SNikolay Aleksandrov * @port: if MASTER flag unset, this points to a port struct 1142594e906SNikolay Aleksandrov * @refcnt: if MASTER flag set, this is bumped for each port referencing it 1152594e906SNikolay Aleksandrov * @brvlan: if MASTER flag unset, this points to the global per-VLAN context 1162594e906SNikolay Aleksandrov * for this VLAN entry 1172594e906SNikolay Aleksandrov * @vlist: sorted list of VLAN entries 1182594e906SNikolay Aleksandrov * @rcu: used for entry destruction 1192594e906SNikolay Aleksandrov * 1202594e906SNikolay Aleksandrov * This structure is shared between the global per-VLAN entries contained in 1212594e906SNikolay Aleksandrov * the bridge rhashtable and the local per-port per-VLAN entries contained in 1222594e906SNikolay Aleksandrov * the port's rhashtable. The union entries should be interpreted depending on 1232594e906SNikolay Aleksandrov * the entry flags that are set. 1242594e906SNikolay Aleksandrov */ 1252594e906SNikolay Aleksandrov struct net_bridge_vlan { 1262594e906SNikolay Aleksandrov struct rhash_head vnode; 127efa5356bSRoopa Prabhu struct rhash_head tnode; 1282594e906SNikolay Aleksandrov u16 vid; 1292594e906SNikolay Aleksandrov u16 flags; 1309d332e69SNikolay Aleksandrov u16 priv_flags; 131a580c76dSNikolay Aleksandrov u8 state; 132*281cc284SHeiner Kallweit struct pcpu_sw_netstats __percpu *stats; 133243a2e63SVlad Yasevich union { 134243a2e63SVlad Yasevich struct net_bridge *br; 1352594e906SNikolay Aleksandrov struct net_bridge_port *port; 1362594e906SNikolay Aleksandrov }; 1372594e906SNikolay Aleksandrov union { 13825127759SReshetova, Elena refcount_t refcnt; 1392594e906SNikolay Aleksandrov struct net_bridge_vlan *brvlan; 1402594e906SNikolay Aleksandrov }; 141efa5356bSRoopa Prabhu 142efa5356bSRoopa Prabhu struct br_tunnel_info tinfo; 143efa5356bSRoopa Prabhu 1442594e906SNikolay Aleksandrov struct list_head vlist; 1452594e906SNikolay Aleksandrov 146243a2e63SVlad Yasevich struct rcu_head rcu; 1472594e906SNikolay Aleksandrov }; 1482594e906SNikolay Aleksandrov 1492594e906SNikolay Aleksandrov /** 1502594e906SNikolay Aleksandrov * struct net_bridge_vlan_group 1512594e906SNikolay Aleksandrov * 1522594e906SNikolay Aleksandrov * @vlan_hash: VLAN entry rhashtable 1532594e906SNikolay Aleksandrov * @vlan_list: sorted VLAN entry list 1542594e906SNikolay Aleksandrov * @num_vlans: number of total VLAN entries 15577751ee8SNikolay Aleksandrov * @pvid: PVID VLAN id 156a580c76dSNikolay Aleksandrov * @pvid_state: PVID's STP state (e.g. forwarding, learning, blocking) 1572594e906SNikolay Aleksandrov * 1582594e906SNikolay Aleksandrov * IMPORTANT: Be careful when checking if there're VLAN entries using list 1592594e906SNikolay Aleksandrov * primitives because the bridge can have entries in its list which 1602594e906SNikolay Aleksandrov * are just for global context but not for filtering, i.e. they have 1612594e906SNikolay Aleksandrov * the master flag set but not the brentry flag. If you have to check 1622594e906SNikolay Aleksandrov * if there're "real" entries in the bridge please test @num_vlans 1632594e906SNikolay Aleksandrov */ 1642594e906SNikolay Aleksandrov struct net_bridge_vlan_group { 1652594e906SNikolay Aleksandrov struct rhashtable vlan_hash; 166efa5356bSRoopa Prabhu struct rhashtable tunnel_hash; 1672594e906SNikolay Aleksandrov struct list_head vlan_list; 1686cbdceebSVlad Yasevich u16 num_vlans; 16977751ee8SNikolay Aleksandrov u16 pvid; 170a580c76dSNikolay Aleksandrov u8 pvid_state; 171243a2e63SVlad Yasevich }; 172243a2e63SVlad Yasevich 1736869c3b0SNikolay Aleksandrov /* bridge fdb flags */ 1746869c3b0SNikolay Aleksandrov enum { 1756869c3b0SNikolay Aleksandrov BR_FDB_LOCAL, 17629e63fffSNikolay Aleksandrov BR_FDB_STATIC, 177e0458d9aSNikolay Aleksandrov BR_FDB_STICKY, 178ac3ca6afSNikolay Aleksandrov BR_FDB_ADDED_BY_USER, 179b5cd9f7cSNikolay Aleksandrov BR_FDB_ADDED_BY_EXT_LEARN, 180d38c6e3dSNikolay Aleksandrov BR_FDB_OFFLOADED, 18131cbc39bSNikolay Aleksandrov BR_FDB_NOTIFY, 18231cbc39bSNikolay Aleksandrov BR_FDB_NOTIFY_INACTIVE 1836869c3b0SNikolay Aleksandrov }; 1846869c3b0SNikolay Aleksandrov 185eb793583SNikolay Aleksandrov struct net_bridge_fdb_key { 186eb793583SNikolay Aleksandrov mac_addr addr; 187eb793583SNikolay Aleksandrov u16 vlan_id; 188eb793583SNikolay Aleksandrov }; 189eb793583SNikolay Aleksandrov 1901214628cSNikolay Aleksandrov struct net_bridge_fdb_entry { 191eb793583SNikolay Aleksandrov struct rhash_head rhnode; 1921da177e4SLinus Torvalds struct net_bridge_port *dst; 1931da177e4SLinus Torvalds 194eb793583SNikolay Aleksandrov struct net_bridge_fdb_key key; 195eb793583SNikolay Aleksandrov struct hlist_node fdb_node; 1966869c3b0SNikolay Aleksandrov unsigned long flags; 1971214628cSNikolay Aleksandrov 1981214628cSNikolay Aleksandrov /* write-heavy members should not affect lookups */ 1991214628cSNikolay Aleksandrov unsigned long updated ____cacheline_aligned_in_smp; 2001214628cSNikolay Aleksandrov unsigned long used; 2011214628cSNikolay Aleksandrov 202b22fbf22SNikolay Aleksandrov struct rcu_head rcu; 2031da177e4SLinus Torvalds }; 2041da177e4SLinus Torvalds 2059d06b6d8SElad Raz #define MDB_PG_FLAGS_PERMANENT BIT(0) 2069d06b6d8SElad Raz #define MDB_PG_FLAGS_OFFLOAD BIT(1) 2073247b272SNikolay Aleksandrov #define MDB_PG_FLAGS_FAST_LEAVE BIT(2) 2088266a049SNikolay Aleksandrov #define MDB_PG_FLAGS_STAR_EXCL BIT(3) 2099116ffbfSNikolay Aleksandrov #define MDB_PG_FLAGS_BLOCKED BIT(4) 2109d06b6d8SElad Raz 2118b671779SNikolay Aleksandrov #define PG_SRC_ENT_LIMIT 32 2128b671779SNikolay Aleksandrov 2138b671779SNikolay Aleksandrov #define BR_SGRP_F_DELETE BIT(0) 2148b671779SNikolay Aleksandrov #define BR_SGRP_F_SEND BIT(1) 215b0812368SNikolay Aleksandrov #define BR_SGRP_F_INSTALLED BIT(2) 2168b671779SNikolay Aleksandrov 217e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc { 218e12cec65SNikolay Aleksandrov struct hlist_node gc_node; 219e12cec65SNikolay Aleksandrov void (*destroy)(struct net_bridge_mcast_gc *gc); 220e12cec65SNikolay Aleksandrov }; 221e12cec65SNikolay Aleksandrov 2228b671779SNikolay Aleksandrov struct net_bridge_group_src { 2238b671779SNikolay Aleksandrov struct hlist_node node; 2248b671779SNikolay Aleksandrov 2258b671779SNikolay Aleksandrov struct br_ip addr; 2268b671779SNikolay Aleksandrov struct net_bridge_port_group *pg; 2278b671779SNikolay Aleksandrov u8 flags; 228438ef2d0SNikolay Aleksandrov u8 src_query_rexmit_cnt; 2298b671779SNikolay Aleksandrov struct timer_list timer; 2308b671779SNikolay Aleksandrov 2318b671779SNikolay Aleksandrov struct net_bridge *br; 232e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2338b671779SNikolay Aleksandrov struct rcu_head rcu; 2348b671779SNikolay Aleksandrov }; 2358b671779SNikolay Aleksandrov 236085b53c8SNikolay Aleksandrov struct net_bridge_port_group_sg_key { 237eb1d1641SHerbert Xu struct net_bridge_port *port; 2388ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 239085b53c8SNikolay Aleksandrov }; 240085b53c8SNikolay Aleksandrov 241085b53c8SNikolay Aleksandrov struct net_bridge_port_group { 242085b53c8SNikolay Aleksandrov struct net_bridge_port_group __rcu *next; 243085b53c8SNikolay Aleksandrov struct net_bridge_port_group_sg_key key; 244206e7323SThomas Martitz unsigned char eth_addr[ETH_ALEN] __aligned(2); 2459d06b6d8SElad Raz unsigned char flags; 2468b671779SNikolay Aleksandrov unsigned char filter_mode; 24742c11ccfSNikolay Aleksandrov unsigned char grp_query_rexmit_cnt; 2488f8cb77eSNikolay Aleksandrov unsigned char rt_protocol; 2496ec0d0eeSNikolay Aleksandrov 2508b671779SNikolay Aleksandrov struct hlist_head src_list; 2518b671779SNikolay Aleksandrov unsigned int src_ents; 2526ec0d0eeSNikolay Aleksandrov struct timer_list timer; 25342c11ccfSNikolay Aleksandrov struct timer_list rexmit_timer; 2546ec0d0eeSNikolay Aleksandrov struct hlist_node mglist; 2556ec0d0eeSNikolay Aleksandrov 256085b53c8SNikolay Aleksandrov struct rhash_head rhnode; 257e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2586ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 259eb1d1641SHerbert Xu }; 260eb1d1641SHerbert Xu 2611c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_entry { 26219e3a9c9SNikolay Aleksandrov struct rhash_head rhnode; 263eb1d1641SHerbert Xu struct net_bridge *br; 264e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 2658ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 266ff0fd34eSAndrew Lunn bool host_joined; 2676ec0d0eeSNikolay Aleksandrov 2686ec0d0eeSNikolay Aleksandrov struct timer_list timer; 26919e3a9c9SNikolay Aleksandrov struct hlist_node mdb_node; 2706ec0d0eeSNikolay Aleksandrov 271e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2726ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 273eb1d1641SHerbert Xu }; 274eb1d1641SHerbert Xu 2751f90c7f3SNikolay Aleksandrov struct net_bridge_port { 2761da177e4SLinus Torvalds struct net_bridge *br; 2771da177e4SLinus Torvalds struct net_device *dev; 2781da177e4SLinus Torvalds struct list_head list; 2791da177e4SLinus Torvalds 2801f90c7f3SNikolay Aleksandrov unsigned long flags; 2811f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 2821f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 2831f90c7f3SNikolay Aleksandrov #endif 2842756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 2851f90c7f3SNikolay Aleksandrov 2861da177e4SLinus Torvalds /* STP */ 2871da177e4SLinus Torvalds u8 priority; 2881da177e4SLinus Torvalds u8 state; 2891da177e4SLinus Torvalds u16 port_no; 2901da177e4SLinus Torvalds unsigned char topology_change_ack; 2911da177e4SLinus Torvalds unsigned char config_pending; 2921da177e4SLinus Torvalds port_id port_id; 2931da177e4SLinus Torvalds port_id designated_port; 2941da177e4SLinus Torvalds bridge_id designated_root; 2951da177e4SLinus Torvalds bridge_id designated_bridge; 2961da177e4SLinus Torvalds u32 path_cost; 2971da177e4SLinus Torvalds u32 designated_cost; 2980c03150eSstephen hemminger unsigned long designated_age; 2991da177e4SLinus Torvalds 3001da177e4SLinus Torvalds struct timer_list forward_delay_timer; 3011da177e4SLinus Torvalds struct timer_list hold_timer; 3021da177e4SLinus Torvalds struct timer_list message_age_timer; 3031da177e4SLinus Torvalds struct kobject kobj; 3041da177e4SLinus Torvalds struct rcu_head rcu; 3053982d3d2SFischer, Anna 306eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 30790010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 308cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 30990010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 310cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 311eb1d1641SHerbert Xu unsigned char multicast_router; 3121080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 313eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 314eb1d1641SHerbert Xu struct hlist_head mglist; 315eb1d1641SHerbert Xu struct hlist_node rlist; 316eb1d1641SHerbert Xu #endif 317e0f43752SSimon Arlott 318e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 319e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 320e0f43752SSimon Arlott #endif 32191d2c34aSHerbert Xu 32291d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 32391d2c34aSHerbert Xu struct netpoll *np; 32491d2c34aSHerbert Xu #endif 3256bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 3266bc506b4SIdo Schimmel int offload_fwd_mark; 3276bc506b4SIdo Schimmel #endif 3285af48b59SNikolay Aleksandrov u16 group_fwd_mask; 3292756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 330de179966SVivien Didelot 331de179966SVivien Didelot struct bridge_stp_xstats stp_xstats; 3321da177e4SLinus Torvalds }; 3331da177e4SLinus Torvalds 334705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 335705e0deaSTyler Hicks 336e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 337f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 338e028e4b8SVlad Yasevich 339b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 340b5ed54e9Sstephen hemminger { 341716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 342b5ed54e9Sstephen hemminger } 343b5ed54e9Sstephen hemminger 3441fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 345b5ed54e9Sstephen hemminger { 34635f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 347ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 348b5ed54e9Sstephen hemminger } 349b5ed54e9Sstephen hemminger 3500baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 3510baa10ffSArkadi Sharshevsky { 35235f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 3530baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3540baa10ffSArkadi Sharshevsky } 3550baa10ffSArkadi Sharshevsky 356ae75767eSNikolay Aleksandrov enum net_bridge_opts { 357ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 358ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 3598df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 3608df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 3618df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 362be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 36313cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 364675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 365675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 366675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 367675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 368c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 3693341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 3709163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 37170e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 3729c0ec2e7SMike Manning BROPT_VLAN_BRIDGE_BINDING, 373ae75767eSNikolay Aleksandrov }; 374ae75767eSNikolay Aleksandrov 3751f90c7f3SNikolay Aleksandrov struct net_bridge { 3761da177e4SLinus Torvalds spinlock_t lock; 3771f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 37890c628ddSHenrik Bjoernlund struct hlist_head frame_type_list; 3791da177e4SLinus Torvalds struct net_device *dev; 3808f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 381ae75767eSNikolay Aleksandrov unsigned long options; 3821f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3831f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3841f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3851f90c7f3SNikolay Aleksandrov u16 default_pvid; 3861f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3871f90c7f3SNikolay Aleksandrov #endif 3881f90c7f3SNikolay Aleksandrov 389eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 39090c628ddSHenrik Bjoernlund struct list_head port_list; 39134666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 392efb6de9bSBernhard Thaler union { 3934adf0af6SSimon Wunderlich struct rtable fake_rtable; 394efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 395efb6de9bSBernhard Thaler }; 3964adf0af6SSimon Wunderlich #endif 397515853ccSstephen hemminger u16 group_fwd_mask; 398f2808d22SToshiaki Makita u16 group_fwd_mask_required; 399515853ccSstephen hemminger 4001da177e4SLinus Torvalds /* STP */ 4011da177e4SLinus Torvalds bridge_id designated_root; 4021da177e4SLinus Torvalds bridge_id bridge_id; 4031f90c7f3SNikolay Aleksandrov unsigned char topology_change; 4041f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 4051f90c7f3SNikolay Aleksandrov u16 root_port; 4061da177e4SLinus Torvalds unsigned long max_age; 4071da177e4SLinus Torvalds unsigned long hello_time; 4081da177e4SLinus Torvalds unsigned long forward_delay; 4091da177e4SLinus Torvalds unsigned long ageing_time; 41034d8acd8SVivien Didelot unsigned long bridge_max_age; 4111da177e4SLinus Torvalds unsigned long bridge_hello_time; 4121da177e4SLinus Torvalds unsigned long bridge_forward_delay; 41334d8acd8SVivien Didelot unsigned long bridge_ageing_time; 41435750b0bSNikolay Aleksandrov u32 root_path_cost; 4151da177e4SLinus Torvalds 416fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 4179cde0708SStephen Hemminger 4189cde0708SStephen Hemminger enum { 4199cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 4209cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 4219cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 4229cde0708SStephen Hemminger } stp_enabled; 4239cde0708SStephen Hemminger 424eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 425eb1d1641SHerbert Xu 426eb1d1641SHerbert Xu u32 hash_max; 427eb1d1641SHerbert Xu 428eb1d1641SHerbert Xu u32 multicast_last_member_count; 429eb1d1641SHerbert Xu u32 multicast_startup_query_count; 430eb1d1641SHerbert Xu 4315e923585SNikolay Aleksandrov u8 multicast_igmp_version; 432675779adSNikolay Aleksandrov u8 multicast_router; 433675779adSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 434675779adSNikolay Aleksandrov u8 multicast_mld_version; 435675779adSNikolay Aleksandrov #endif 43635750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 437eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 438eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 439eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 440eb1d1641SHerbert Xu unsigned long multicast_query_interval; 441eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 442eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 443eb1d1641SHerbert Xu 44419e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 445085b53c8SNikolay Aleksandrov struct rhashtable sg_port_tbl; 44619e3a9c9SNikolay Aleksandrov 447e12cec65SNikolay Aleksandrov struct hlist_head mcast_gc_list; 44819e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 449eb1d1641SHerbert Xu struct hlist_head router_list; 450eb1d1641SHerbert Xu 451eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 45290010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 45390010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 454dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 4551080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 456cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 45790010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 45890010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 459dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 460cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 461e12cec65SNikolay Aleksandrov struct work_struct mcast_gc_work; 462eb1d1641SHerbert Xu #endif 463eb1d1641SHerbert Xu 4641da177e4SLinus Torvalds struct timer_list hello_timer; 4651da177e4SLinus Torvalds struct timer_list tcn_timer; 4661da177e4SLinus Torvalds struct timer_list topology_change_timer; 467f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 46843b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 469e028e4b8SVlad Yasevich u32 auto_cnt; 4706bc506b4SIdo Schimmel 4716bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4726bc506b4SIdo Schimmel int offload_fwd_mark; 4736bc506b4SIdo Schimmel #endif 474eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4754b8d7d4cSHoratiu Vultur 4764b8d7d4cSHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 4770169b820SHoratiu Vultur struct hlist_head mrp_list; 4784b8d7d4cSHoratiu Vultur #endif 479f323aa54SHenrik Bjoernlund #if IS_ENABLED(CONFIG_BRIDGE_CFM) 480f323aa54SHenrik Bjoernlund struct hlist_head mep_list; 481f323aa54SHenrik Bjoernlund #endif 4821da177e4SLinus Torvalds }; 4831da177e4SLinus Torvalds 48468b7c895SHerbert Xu struct br_input_skb_cb { 48568b7c895SHerbert Xu struct net_device *brdev; 48693fdd47eSHerbert Xu 4873c171f49SPablo Neira Ayuso u16 frag_max_size; 48832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 489f12064d1SFlorian Westphal u8 igmp; 490f12064d1SFlorian Westphal u8 mrouters_only:1; 49132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 492f12064d1SFlorian Westphal u8 proxyarp_replied:1; 493f12064d1SFlorian Westphal u8 src_port_isolated:1; 49420adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 495f12064d1SFlorian Westphal u8 vlan_filtered:1; 49620adfa1aSVlad Yasevich #endif 497223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 498223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 499223fd0adSFlorian Westphal #endif 5006bc506b4SIdo Schimmel 5016bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 5026bc506b4SIdo Schimmel int offload_fwd_mark; 5036bc506b4SIdo Schimmel #endif 50468b7c895SHerbert Xu }; 50568b7c895SHerbert Xu 50668b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 50768b7c895SHerbert Xu 50832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 50932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 51032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 51132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 51232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 51332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 51428a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 51528a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 51628a16c97Sstephen hemminger 51728a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 51828a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 51928a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 52028a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 52128a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 52228a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 52328a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 52428a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 52528a16c97Sstephen hemminger 52628a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 52728a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 52828a16c97Sstephen hemminger 5291da177e4SLinus Torvalds /* called under bridge lock */ 5301da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 5311da177e4SLinus Torvalds { 5321da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 5331da177e4SLinus Torvalds } 5341da177e4SLinus Torvalds 5352594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 5362594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 5372594e906SNikolay Aleksandrov { 5382594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 5392594e906SNikolay Aleksandrov } 5402594e906SNikolay Aleksandrov 5412594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 5422594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 5432594e906SNikolay Aleksandrov { 5442594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 5452594e906SNikolay Aleksandrov } 5462594e906SNikolay Aleksandrov 5476be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 5482594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 5492594e906SNikolay Aleksandrov { 5502594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 5512594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 5522594e906SNikolay Aleksandrov return true; 5532594e906SNikolay Aleksandrov else 5542594e906SNikolay Aleksandrov return false; 5552594e906SNikolay Aleksandrov } 5562594e906SNikolay Aleksandrov 5572594e906SNikolay Aleksandrov return true; 5582594e906SNikolay Aleksandrov } 5592594e906SNikolay Aleksandrov 5605d1fcaf3SNikolay Aleksandrov static inline bool nbp_state_should_learn(const struct net_bridge_port *p) 5615d1fcaf3SNikolay Aleksandrov { 5625d1fcaf3SNikolay Aleksandrov return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; 5635d1fcaf3SNikolay Aleksandrov } 5645d1fcaf3SNikolay Aleksandrov 5658f4cc940SNikolay Aleksandrov static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack) 5665a46facbSNikolay Aleksandrov { 5678f4cc940SNikolay Aleksandrov bool ret = vid > 0 && vid < VLAN_VID_MASK; 5688f4cc940SNikolay Aleksandrov 5698f4cc940SNikolay Aleksandrov if (!ret) 5708f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid"); 5718f4cc940SNikolay Aleksandrov 5728f4cc940SNikolay Aleksandrov return ret; 5735a46facbSNikolay Aleksandrov } 5745a46facbSNikolay Aleksandrov 5755a46facbSNikolay Aleksandrov static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, 5768f4cc940SNikolay Aleksandrov const struct bridge_vlan_info *last, 5778f4cc940SNikolay Aleksandrov struct netlink_ext_ack *extack) 5785a46facbSNikolay Aleksandrov { 5795a46facbSNikolay Aleksandrov /* pvid flag is not allowed in ranges */ 5808f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_PVID) { 5818f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range"); 5825a46facbSNikolay Aleksandrov return false; 5838f4cc940SNikolay Aleksandrov } 5845a46facbSNikolay Aleksandrov 5855a46facbSNikolay Aleksandrov /* when cur is the range end, check if: 5865a46facbSNikolay Aleksandrov * - it has range start flag 5875a46facbSNikolay Aleksandrov * - range ids are invalid (end is equal to or before start) 5885a46facbSNikolay Aleksandrov */ 5895a46facbSNikolay Aleksandrov if (last) { 5908f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { 5918f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one"); 5925a46facbSNikolay Aleksandrov return false; 5938f4cc940SNikolay Aleksandrov } else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) { 5948f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing"); 5958f4cc940SNikolay Aleksandrov return false; 5968f4cc940SNikolay Aleksandrov } else if (cur->vid <= last->vid) { 5978f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); 5988f4cc940SNikolay Aleksandrov return false; 5998f4cc940SNikolay Aleksandrov } 6008f4cc940SNikolay Aleksandrov } 6018f4cc940SNikolay Aleksandrov 6028f4cc940SNikolay Aleksandrov /* check for required range flags */ 6038f4cc940SNikolay Aleksandrov if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 6048f4cc940SNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END))) { 6058f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing"); 6065a46facbSNikolay Aleksandrov return false; 6075a46facbSNikolay Aleksandrov } 6085a46facbSNikolay Aleksandrov 6095a46facbSNikolay Aleksandrov return true; 6105a46facbSNikolay Aleksandrov } 6115a46facbSNikolay Aleksandrov 612f545923bSNikolay Aleksandrov static inline int br_afspec_cmd_to_rtm(int cmd) 613f545923bSNikolay Aleksandrov { 614f545923bSNikolay Aleksandrov switch (cmd) { 615f545923bSNikolay Aleksandrov case RTM_SETLINK: 616f545923bSNikolay Aleksandrov return RTM_NEWVLAN; 617f545923bSNikolay Aleksandrov case RTM_DELLINK: 618f545923bSNikolay Aleksandrov return RTM_DELVLAN; 619f545923bSNikolay Aleksandrov } 620f545923bSNikolay Aleksandrov 621f545923bSNikolay Aleksandrov return 0; 622f545923bSNikolay Aleksandrov } 623f545923bSNikolay Aleksandrov 624ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 625ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 626ae75767eSNikolay Aleksandrov { 627ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 628ae75767eSNikolay Aleksandrov } 629ae75767eSNikolay Aleksandrov 630a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 631a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 632a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 633a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 634a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 635a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 636a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 637a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 638ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 639ae75767eSNikolay Aleksandrov 6401da177e4SLinus Torvalds /* br_device.c */ 641348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 642348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 643348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 644cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 64591d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 64691d2c34aSHerbert Xu struct sk_buff *skb) 64791d2c34aSHerbert Xu { 648f78ed220SEric Dumazet netpoll_send_skb(p->np, skb); 64991d2c34aSHerbert Xu } 65091d2c34aSHerbert Xu 651a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 652348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 65391d2c34aSHerbert Xu #else 6549f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 65591d2c34aSHerbert Xu struct sk_buff *skb) 65691d2c34aSHerbert Xu { 65791d2c34aSHerbert Xu } 65891d2c34aSHerbert Xu 659a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 66091d2c34aSHerbert Xu { 66191d2c34aSHerbert Xu return 0; 66291d2c34aSHerbert Xu } 66391d2c34aSHerbert Xu 66491d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 66591d2c34aSHerbert Xu { 66691d2c34aSHerbert Xu } 667cfb478daSstephen hemminger #endif 6681da177e4SLinus Torvalds 6691da177e4SLinus Torvalds /* br_fdb.c */ 670348662a1SJoe Perches int br_fdb_init(void); 671348662a1SJoe Perches void br_fdb_fini(void); 672eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 673eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 674348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 675424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 676424bb9c9SToshiaki Makita const struct net_bridge_port *p, 677424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 678348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 679348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 680f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 681348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 6821ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 683bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 684bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 685bfd0aeacSNikolay Aleksandrov __u16 vid); 686348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 687348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 688348662a1SJoe Perches unsigned long off); 689348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 690348662a1SJoe Perches const unsigned char *addr, u16 vid); 691348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 692be0c5677SNikolay Aleksandrov const unsigned char *addr, u16 vid, unsigned long flags); 69377162022SJohn Fastabend 694348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 695f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 696348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 69787b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 69887b0984eSPetr Machata struct netlink_ext_ack *extack); 699348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 700d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 70147674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 70247674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 70347674562SRoopa Prabhu struct netlink_ext_ack *extack); 7048db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 7058db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 7063aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 707161d82deSPetr Machata const unsigned char *addr, u16 vid, 708161d82deSPetr Machata bool swdev_notify); 7093aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 710161d82deSPetr Machata const unsigned char *addr, u16 vid, 711161d82deSPetr Machata bool swdev_notify); 7129fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 713e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 7141da177e4SLinus Torvalds 7151da177e4SLinus Torvalds /* br_forward.c */ 7168addd5e7SNikolay Aleksandrov enum br_pkt_type { 7178addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 7188addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 7198addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 7208addd5e7SNikolay Aleksandrov }; 7210c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 722b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 72337b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 7240c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 72537b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 7268addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 7271da177e4SLinus Torvalds 7287d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 7297d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 7307d850abdSNikolay Aleksandrov const struct sk_buff *skb) 7317d850abdSNikolay Aleksandrov { 7327d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 7337d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 7347d850abdSNikolay Aleksandrov } 7357d850abdSNikolay Aleksandrov 7361da177e4SLinus Torvalds /* br_if.c */ 737faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 738348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 739348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 740ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 741ca752be0SDavid Ahern struct netlink_ext_ack *extack); 742348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 743804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 744348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 745c8f44affSMichał Mirosław netdev_features_t features); 746e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 7472796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 7482756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 7491da177e4SLinus Torvalds 7501da177e4SLinus Torvalds /* br_input.c */ 7510c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 7529eb8eff0SVladimir Oltean rx_handler_func_t *br_get_rx_handler(const struct net_device *dev); 7531da177e4SLinus Torvalds 75490c628ddSHenrik Bjoernlund struct br_frame_type { 75590c628ddSHenrik Bjoernlund __be16 type; 75690c628ddSHenrik Bjoernlund int (*frame_handler)(struct net_bridge_port *port, 75790c628ddSHenrik Bjoernlund struct sk_buff *skb); 75890c628ddSHenrik Bjoernlund struct hlist_node list; 75990c628ddSHenrik Bjoernlund }; 76090c628ddSHenrik Bjoernlund 76190c628ddSHenrik Bjoernlund void br_add_frame(struct net_bridge *br, struct br_frame_type *ft); 76290c628ddSHenrik Bjoernlund void br_del_frame(struct net_bridge *br, struct br_frame_type *ft); 76390c628ddSHenrik Bjoernlund 764859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 765859828c0SJiri Pirko { 7669eb8eff0SVladimir Oltean return rcu_dereference(dev->rx_handler) == br_get_rx_handler(dev); 767859828c0SJiri Pirko } 768859828c0SJiri Pirko 7694d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 7704d4fd361SPetr Machata { 7719eb8eff0SVladimir Oltean return rcu_dereference_rtnl(dev->rx_handler) == br_get_rx_handler(dev); 7724d4fd361SPetr Machata } 7734d4fd361SPetr Machata 774859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 775859828c0SJiri Pirko { 776859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 777859828c0SJiri Pirko } 778859828c0SJiri Pirko 7794d4fd361SPetr Machata static inline struct net_bridge_port * 7804d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 7814d4fd361SPetr Machata { 7824d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 7834d4fd361SPetr Machata } 7844d4fd361SPetr Machata 7851da177e4SLinus Torvalds /* br_ioctl.c */ 786348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 787348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 788348662a1SJoe Perches void __user *arg); 7891da177e4SLinus Torvalds 790eb1d1641SHerbert Xu /* br_multicast.c */ 791eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 792348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 793fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 794348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 795eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 7961080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 797348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 798348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 799348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 800348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 801348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 802348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 803e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 80437b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 80537b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 806348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 807348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 808348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 809348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 810348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 8115e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 812aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 813aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 814aa2ae3e7SNikolay Aleksandrov #endif 815348662a1SJoe Perches struct net_bridge_mdb_entry * 81619e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 817348662a1SJoe Perches struct net_bridge_mdb_entry * 81819e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 819348662a1SJoe Perches struct net_bridge_port_group * 820348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 821762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 8228b671779SNikolay Aleksandrov unsigned char flags, const unsigned char *src, 8238f8cb77eSNikolay Aleksandrov u8 filter_mode, u8 rt_protocol); 82419e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 82519e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 82681f19838SNikolay Aleksandrov void br_mdb_notify(struct net_device *dev, struct net_bridge_mdb_entry *mp, 82781f19838SNikolay Aleksandrov struct net_bridge_port_group *pg, int type); 828949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 829949f1e39SSatish Ashok int type); 830681590bdSNikolay Aleksandrov void br_multicast_del_pg(struct net_bridge_mdb_entry *mp, 831681590bdSNikolay Aleksandrov struct net_bridge_port_group *pg, 832681590bdSNikolay Aleksandrov struct net_bridge_port_group __rcu **pp); 8331080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 834a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 8351080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 836b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 8371080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 8381080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 8391080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 84019e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 84119e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 8421bc844eeSNikolay Aleksandrov void br_multicast_host_join(struct net_bridge_mdb_entry *mp, bool notify); 8431bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 8448266a049SNikolay Aleksandrov void br_multicast_star_g_handle_mode(struct net_bridge_port_group *pg, 8458266a049SNikolay Aleksandrov u8 filter_mode); 8468266a049SNikolay Aleksandrov void br_multicast_sg_add_exclude_ports(struct net_bridge_mdb_entry *star_mp, 8478266a049SNikolay Aleksandrov struct net_bridge_port_group *sg); 84885b35269SSridhar Samudrala 849955062b0SNikolay Aleksandrov static inline bool br_group_is_l2(const struct br_ip *group) 850955062b0SNikolay Aleksandrov { 851955062b0SNikolay Aleksandrov return group->proto == 0; 852955062b0SNikolay Aleksandrov } 853955062b0SNikolay Aleksandrov 854cfd56754SCong Wang #define mlock_dereference(X, br) \ 855cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 856cfd56754SCong Wang 85785b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 85885b35269SSridhar Samudrala { 85985b35269SSridhar Samudrala return br->multicast_router == 2 || 86085b35269SSridhar Samudrala (br->multicast_router == 1 && 86185b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 86285b35269SSridhar Samudrala } 863b00589afSLinus Lüssing 864cc0fdd80SLinus Lüssing static inline bool 865cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 8660888d5f3Sdaniel struct bridge_mcast_other_query *querier, 8670888d5f3Sdaniel const bool is_ipv6) 868b00589afSLinus Lüssing { 8690888d5f3Sdaniel bool own_querier_enabled; 8700888d5f3Sdaniel 871675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 872675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 8730888d5f3Sdaniel own_querier_enabled = false; 8740888d5f3Sdaniel else 8750888d5f3Sdaniel own_querier_enabled = true; 8760888d5f3Sdaniel } else { 8770888d5f3Sdaniel own_querier_enabled = false; 8780888d5f3Sdaniel } 8790888d5f3Sdaniel 880cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 8810888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 882cc0fdd80SLinus Lüssing } 883cc0fdd80SLinus Lüssing 884cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 885955062b0SNikolay Aleksandrov struct ethhdr *eth, 886955062b0SNikolay Aleksandrov const struct net_bridge_mdb_entry *mdb) 887cc0fdd80SLinus Lüssing { 888cc0fdd80SLinus Lüssing switch (eth->h_proto) { 889cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 8900888d5f3Sdaniel return __br_multicast_querier_exists(br, 8910888d5f3Sdaniel &br->ip4_other_query, false); 892cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 893cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 8940888d5f3Sdaniel return __br_multicast_querier_exists(br, 8950888d5f3Sdaniel &br->ip6_other_query, true); 896cc0fdd80SLinus Lüssing #endif 897cc0fdd80SLinus Lüssing default: 898955062b0SNikolay Aleksandrov return !!mdb && br_group_is_l2(&mdb->addr); 899cc0fdd80SLinus Lüssing } 900b00589afSLinus Lüssing } 9011080ab95SNikolay Aleksandrov 90288d4bd18SNikolay Aleksandrov static inline bool br_multicast_is_star_g(const struct br_ip *ip) 90388d4bd18SNikolay Aleksandrov { 90488d4bd18SNikolay Aleksandrov switch (ip->proto) { 90588d4bd18SNikolay Aleksandrov case htons(ETH_P_IP): 90688d4bd18SNikolay Aleksandrov return ipv4_is_zeronet(ip->src.ip4); 90788d4bd18SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 90888d4bd18SNikolay Aleksandrov case htons(ETH_P_IPV6): 90988d4bd18SNikolay Aleksandrov return ipv6_addr_any(&ip->src.ip6); 91088d4bd18SNikolay Aleksandrov #endif 91188d4bd18SNikolay Aleksandrov default: 91288d4bd18SNikolay Aleksandrov return false; 91388d4bd18SNikolay Aleksandrov } 91488d4bd18SNikolay Aleksandrov } 91588d4bd18SNikolay Aleksandrov 9168266a049SNikolay Aleksandrov static inline bool br_multicast_should_handle_mode(const struct net_bridge *br, 9178266a049SNikolay Aleksandrov __be16 proto) 9188266a049SNikolay Aleksandrov { 9198266a049SNikolay Aleksandrov switch (proto) { 9208266a049SNikolay Aleksandrov case htons(ETH_P_IP): 9218266a049SNikolay Aleksandrov return !!(br->multicast_igmp_version == 3); 9228266a049SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 9238266a049SNikolay Aleksandrov case htons(ETH_P_IPV6): 9248266a049SNikolay Aleksandrov return !!(br->multicast_mld_version == 2); 9258266a049SNikolay Aleksandrov #endif 9268266a049SNikolay Aleksandrov default: 9278266a049SNikolay Aleksandrov return false; 9288266a049SNikolay Aleksandrov } 9298266a049SNikolay Aleksandrov } 9308266a049SNikolay Aleksandrov 9311080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 9321080ab95SNikolay Aleksandrov { 9331080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 9341080ab95SNikolay Aleksandrov } 93542c11ccfSNikolay Aleksandrov 93642c11ccfSNikolay Aleksandrov static inline unsigned long br_multicast_lmqt(const struct net_bridge *br) 93742c11ccfSNikolay Aleksandrov { 93842c11ccfSNikolay Aleksandrov return br->multicast_last_member_interval * 93942c11ccfSNikolay Aleksandrov br->multicast_last_member_count; 94042c11ccfSNikolay Aleksandrov } 9410436862eSNikolay Aleksandrov 9420436862eSNikolay Aleksandrov static inline unsigned long br_multicast_gmi(const struct net_bridge *br) 9430436862eSNikolay Aleksandrov { 9440436862eSNikolay Aleksandrov /* use the RFC default of 2 for QRV */ 9450436862eSNikolay Aleksandrov return 2 * br->multicast_query_interval + 9460436862eSNikolay Aleksandrov br->multicast_query_response_interval; 9470436862eSNikolay Aleksandrov } 948eb1d1641SHerbert Xu #else 949eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 950eb1d1641SHerbert Xu struct net_bridge_port *port, 95106499098SVlad Yasevich struct sk_buff *skb, 95206499098SVlad Yasevich u16 vid) 953eb1d1641SHerbert Xu { 954eb1d1641SHerbert Xu return 0; 955eb1d1641SHerbert Xu } 956eb1d1641SHerbert Xu 957eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 958fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 959eb1d1641SHerbert Xu { 960eb1d1641SHerbert Xu return NULL; 961eb1d1641SHerbert Xu } 962eb1d1641SHerbert Xu 9631080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 964eb1d1641SHerbert Xu { 9651080ab95SNikolay Aleksandrov return 0; 966eb1d1641SHerbert Xu } 967eb1d1641SHerbert Xu 968eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 969eb1d1641SHerbert Xu { 970eb1d1641SHerbert Xu } 971eb1d1641SHerbert Xu 972eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 973eb1d1641SHerbert Xu { 974eb1d1641SHerbert Xu } 975eb1d1641SHerbert Xu 976eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 977eb1d1641SHerbert Xu { 978eb1d1641SHerbert Xu } 979eb1d1641SHerbert Xu 980eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 981eb1d1641SHerbert Xu { 982eb1d1641SHerbert Xu } 983eb1d1641SHerbert Xu 984eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 985eb1d1641SHerbert Xu { 986eb1d1641SHerbert Xu } 987eb1d1641SHerbert Xu 988eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 989eb1d1641SHerbert Xu { 990eb1d1641SHerbert Xu } 9915cb5e947SHerbert Xu 992a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 993a7ce45a7SNikolay Aleksandrov { 994a7ce45a7SNikolay Aleksandrov } 995a7ce45a7SNikolay Aleksandrov 99637b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 99737b090e6SNikolay Aleksandrov struct sk_buff *skb, 99837b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 9995cb5e947SHerbert Xu { 10005cb5e947SHerbert Xu } 10015cb5e947SHerbert Xu 1002eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 1003eb1d1641SHerbert Xu { 100403aaa9e2SGustavo A. R. Silva return false; 1005eb1d1641SHerbert Xu } 100637b090e6SNikolay Aleksandrov 1007cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 1008c43fd36fSVladimir Oltean struct ethhdr *eth, 1009c43fd36fSVladimir Oltean const struct net_bridge_mdb_entry *mdb) 1010b00589afSLinus Lüssing { 1011b00589afSLinus Lüssing return false; 1012b00589afSLinus Lüssing } 101337b090e6SNikolay Aleksandrov 1014fdb184d1SRami Rosen static inline void br_mdb_init(void) 1015fdb184d1SRami Rosen { 1016fdb184d1SRami Rosen } 101737b090e6SNikolay Aleksandrov 1018fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 1019fdb184d1SRami Rosen { 1020fdb184d1SRami Rosen } 10211080ab95SNikolay Aleksandrov 102219e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 102319e3a9c9SNikolay Aleksandrov { 102419e3a9c9SNikolay Aleksandrov return 0; 102519e3a9c9SNikolay Aleksandrov } 102619e3a9c9SNikolay Aleksandrov 102719e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 102819e3a9c9SNikolay Aleksandrov { 102919e3a9c9SNikolay Aleksandrov } 103019e3a9c9SNikolay Aleksandrov 10311080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 10321080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 1033a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 1034a65056ecSNikolay Aleksandrov u8 type, u8 dir) 10351080ab95SNikolay Aleksandrov { 10361080ab95SNikolay Aleksandrov } 10371080ab95SNikolay Aleksandrov 10381080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 10391080ab95SNikolay Aleksandrov { 10401080ab95SNikolay Aleksandrov return 0; 10411080ab95SNikolay Aleksandrov } 10421080ab95SNikolay Aleksandrov 1043b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 1044b6fe0440SIdo Schimmel { 1045b6fe0440SIdo Schimmel } 1046b6fe0440SIdo Schimmel 10471080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 10481080ab95SNikolay Aleksandrov { 10491080ab95SNikolay Aleksandrov return 0; 10501080ab95SNikolay Aleksandrov } 105185b35269SSridhar Samudrala #endif 1052eb1d1641SHerbert Xu 1053243a2e63SVlad Yasevich /* br_vlan.c */ 1054243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 105577751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 105677751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 1057a580c76dSNikolay Aleksandrov u16 *vid, u8 *state); 105877751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 105985f46c6bSVlad Yasevich const struct sk_buff *skb); 1060e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 1061348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 106211538d03SRoopa Prabhu const struct net_bridge_port *port, 10632594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 106478851988SVlad Yasevich struct sk_buff *skb); 1065f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1066169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1067348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 1068348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 10692594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 1070204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 1071a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 1072348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 1073d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 1074204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 10756dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 10769163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 10775be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 107896a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 1079169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 1080169327d5SPetr Machata struct netlink_ext_ack *extack); 1081f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1082169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1083348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 1084348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 1085169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 10862594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 1087a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 1088*281cc284SHeiner Kallweit struct pcpu_sw_netstats *stats); 10899c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 1090091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 10919c0ec2e7SMike Manning void *ptr); 10928dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void); 10938dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void); 1094cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 1095cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1096cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1097cf5bddb9SNikolay Aleksandrov int cmd); 1098a5d29ae2SNikolay Aleksandrov bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1099a5d29ae2SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 1100a37b85c9SVlad Yasevich 11012594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 1102a37b85c9SVlad Yasevich const struct net_bridge *br) 1103a37b85c9SVlad Yasevich { 1104907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 1105a37b85c9SVlad Yasevich } 1106a37b85c9SVlad Yasevich 11072594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 1108a37b85c9SVlad Yasevich const struct net_bridge_port *p) 1109a37b85c9SVlad Yasevich { 1110907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 1111907b1e6eSNikolay Aleksandrov } 1112907b1e6eSNikolay Aleksandrov 1113907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1114907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1115907b1e6eSNikolay Aleksandrov { 1116907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 1117907b1e6eSNikolay Aleksandrov } 1118907b1e6eSNikolay Aleksandrov 1119907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1120907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1121907b1e6eSNikolay Aleksandrov { 1122907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 1123a37b85c9SVlad Yasevich } 1124a37b85c9SVlad Yasevich 1125a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 1126a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 1127a37b85c9SVlad Yasevich */ 1128a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 1129a37b85c9SVlad Yasevich { 1130a37b85c9SVlad Yasevich int err = 0; 1131a37b85c9SVlad Yasevich 11322594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 11335978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 11342594e906SNikolay Aleksandrov } else { 1135a37b85c9SVlad Yasevich *vid = 0; 1136a37b85c9SVlad Yasevich err = -EINVAL; 1137a37b85c9SVlad Yasevich } 1138a37b85c9SVlad Yasevich 1139a37b85c9SVlad Yasevich return err; 1140a37b85c9SVlad Yasevich } 114178851988SVlad Yasevich 114277751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 114378851988SVlad Yasevich { 114477751ee8SNikolay Aleksandrov if (!vg) 11455be5a2dfSVlad Yasevich return 0; 11465be5a2dfSVlad Yasevich 114778851988SVlad Yasevich smp_rmb(); 114877751ee8SNikolay Aleksandrov return vg->pvid; 114978851988SVlad Yasevich } 115078851988SVlad Yasevich 11518dcea187SNikolay Aleksandrov static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) 11528dcea187SNikolay Aleksandrov { 11538dcea187SNikolay Aleksandrov return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags; 11548dcea187SNikolay Aleksandrov } 1155243a2e63SVlad Yasevich #else 115677751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 115777751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 11582594e906SNikolay Aleksandrov struct sk_buff *skb, 1159a580c76dSNikolay Aleksandrov u16 *vid, u8 *state) 11602594e906SNikolay Aleksandrov { 11612594e906SNikolay Aleksandrov return true; 11622594e906SNikolay Aleksandrov } 11632594e906SNikolay Aleksandrov 11642594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 116585f46c6bSVlad Yasevich const struct sk_buff *skb) 116685f46c6bSVlad Yasevich { 116785f46c6bSVlad Yasevich return true; 116885f46c6bSVlad Yasevich } 116985f46c6bSVlad Yasevich 1170e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 1171e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 1172e0d7968aSToshiaki Makita { 1173e0d7968aSToshiaki Makita return true; 1174e0d7968aSToshiaki Makita } 1175e0d7968aSToshiaki Makita 117678851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 117711538d03SRoopa Prabhu const struct net_bridge_port *port, 11782594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 117978851988SVlad Yasevich struct sk_buff *skb) 118078851988SVlad Yasevich { 118178851988SVlad Yasevich return skb; 118278851988SVlad Yasevich } 118378851988SVlad Yasevich 1184f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1185169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1186243a2e63SVlad Yasevich { 1187f418af63SNikolay Aleksandrov *changed = false; 1188243a2e63SVlad Yasevich return -EOPNOTSUPP; 1189243a2e63SVlad Yasevich } 1190243a2e63SVlad Yasevich 1191243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 1192243a2e63SVlad Yasevich { 1193243a2e63SVlad Yasevich return -EOPNOTSUPP; 1194243a2e63SVlad Yasevich } 1195243a2e63SVlad Yasevich 1196243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1197243a2e63SVlad Yasevich { 1198243a2e63SVlad Yasevich } 1199243a2e63SVlad Yasevich 1200204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1201204177f3SToshiaki Makita { 1202204177f3SToshiaki Makita } 1203204177f3SToshiaki Makita 12045be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 12058580e211SToshiaki Makita { 12065be5a2dfSVlad Yasevich return 0; 12078580e211SToshiaki Makita } 12088580e211SToshiaki Makita 1209f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1210169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1211243a2e63SVlad Yasevich { 1212f418af63SNikolay Aleksandrov *changed = false; 1213243a2e63SVlad Yasevich return -EOPNOTSUPP; 1214243a2e63SVlad Yasevich } 1215243a2e63SVlad Yasevich 1216243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1217243a2e63SVlad Yasevich { 1218243a2e63SVlad Yasevich return -EOPNOTSUPP; 1219243a2e63SVlad Yasevich } 1220243a2e63SVlad Yasevich 1221243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1222243a2e63SVlad Yasevich { 1223243a2e63SVlad Yasevich } 1224243a2e63SVlad Yasevich 12252594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 12262594e906SNikolay Aleksandrov u16 vid) 1227a37b85c9SVlad Yasevich { 1228a37b85c9SVlad Yasevich return NULL; 1229a37b85c9SVlad Yasevich } 1230bc9a25d2SVlad Yasevich 1231169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1232169327d5SPetr Machata struct netlink_ext_ack *extack) 12335be5a2dfSVlad Yasevich { 12345be5a2dfSVlad Yasevich return 0; 12355be5a2dfSVlad Yasevich } 12365be5a2dfSVlad Yasevich 123778851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1238a37b85c9SVlad Yasevich { 1239a37b85c9SVlad Yasevich return 0; 1240a37b85c9SVlad Yasevich } 12412594e906SNikolay Aleksandrov 124277751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 124378851988SVlad Yasevich { 12443df6bf45SVlad Yasevich return 0; 124578851988SVlad Yasevich } 12462796d0c6SVlad Yasevich 1247a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1248a7854037SNikolay Aleksandrov unsigned long val) 1249a7854037SNikolay Aleksandrov { 1250a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1251a7854037SNikolay Aleksandrov } 12522594e906SNikolay Aleksandrov 12532594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 12542594e906SNikolay Aleksandrov u32 filter_mask) 12552594e906SNikolay Aleksandrov { 12562594e906SNikolay Aleksandrov return 0; 12572594e906SNikolay Aleksandrov } 12582594e906SNikolay Aleksandrov 12592594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 12602594e906SNikolay Aleksandrov const struct net_bridge *br) 12612594e906SNikolay Aleksandrov { 12622594e906SNikolay Aleksandrov return NULL; 12632594e906SNikolay Aleksandrov } 12642594e906SNikolay Aleksandrov 12652594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 12662594e906SNikolay Aleksandrov const struct net_bridge_port *p) 12672594e906SNikolay Aleksandrov { 12682594e906SNikolay Aleksandrov return NULL; 12692594e906SNikolay Aleksandrov } 1270907b1e6eSNikolay Aleksandrov 1271907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1272907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1273907b1e6eSNikolay Aleksandrov { 1274907b1e6eSNikolay Aleksandrov return NULL; 1275907b1e6eSNikolay Aleksandrov } 1276907b1e6eSNikolay Aleksandrov 1277907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1278907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1279907b1e6eSNikolay Aleksandrov { 1280907b1e6eSNikolay Aleksandrov return NULL; 1281907b1e6eSNikolay Aleksandrov } 1282a60c0903SNikolay Aleksandrov 1283a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1284*281cc284SHeiner Kallweit struct pcpu_sw_netstats *stats) 1285a60c0903SNikolay Aleksandrov { 1286a60c0903SNikolay Aleksandrov } 12879c0ec2e7SMike Manning 12889c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 12899c0ec2e7SMike Manning unsigned long event) 12909c0ec2e7SMike Manning { 12919c0ec2e7SMike Manning } 12929c0ec2e7SMike Manning 1293091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 12949c0ec2e7SMike Manning unsigned long event, void *ptr) 12959c0ec2e7SMike Manning { 1296091adf9bSNikolay Aleksandrov return 0; 12979c0ec2e7SMike Manning } 12988dcea187SNikolay Aleksandrov 12998dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_init(void) 13008dcea187SNikolay Aleksandrov { 13018dcea187SNikolay Aleksandrov } 13028dcea187SNikolay Aleksandrov 13038dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_uninit(void) 13048dcea187SNikolay Aleksandrov { 13058dcea187SNikolay Aleksandrov } 1306cf5bddb9SNikolay Aleksandrov 1307cf5bddb9SNikolay Aleksandrov static inline void br_vlan_notify(const struct net_bridge *br, 1308cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1309cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1310cf5bddb9SNikolay Aleksandrov int cmd) 1311cf5bddb9SNikolay Aleksandrov { 1312cf5bddb9SNikolay Aleksandrov } 1313528ae84aSNikolay Aleksandrov 1314528ae84aSNikolay Aleksandrov static inline bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1315528ae84aSNikolay Aleksandrov const struct net_bridge_vlan *range_end) 1316528ae84aSNikolay Aleksandrov { 1317528ae84aSNikolay Aleksandrov return true; 1318528ae84aSNikolay Aleksandrov } 1319243a2e63SVlad Yasevich #endif 1320243a2e63SVlad Yasevich 13217a53e718SNikolay Aleksandrov /* br_vlan_options.c */ 13227a53e718SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 132399f7c5e0SNikolay Aleksandrov bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, 132499f7c5e0SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 13257a53e718SNikolay Aleksandrov bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v); 13267a53e718SNikolay Aleksandrov size_t br_vlan_opts_nl_size(void); 1327a5d29ae2SNikolay Aleksandrov int br_vlan_process_options(const struct net_bridge *br, 1328a5d29ae2SNikolay Aleksandrov const struct net_bridge_port *p, 1329a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_start, 1330a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_end, 1331a5d29ae2SNikolay Aleksandrov struct nlattr **tb, 1332a5d29ae2SNikolay Aleksandrov struct netlink_ext_ack *extack); 1333a580c76dSNikolay Aleksandrov 1334a580c76dSNikolay Aleksandrov /* vlan state manipulation helpers using *_ONCE to annotate lock-free access */ 1335a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v) 1336a580c76dSNikolay Aleksandrov { 1337a580c76dSNikolay Aleksandrov return READ_ONCE(v->state); 1338a580c76dSNikolay Aleksandrov } 1339a580c76dSNikolay Aleksandrov 1340a580c76dSNikolay Aleksandrov static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state) 1341a580c76dSNikolay Aleksandrov { 1342a580c76dSNikolay Aleksandrov WRITE_ONCE(v->state, state); 1343a580c76dSNikolay Aleksandrov } 1344a580c76dSNikolay Aleksandrov 1345a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg) 1346a580c76dSNikolay Aleksandrov { 1347a580c76dSNikolay Aleksandrov return READ_ONCE(vg->pvid_state); 1348a580c76dSNikolay Aleksandrov } 1349a580c76dSNikolay Aleksandrov 1350a580c76dSNikolay Aleksandrov static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg, 1351a580c76dSNikolay Aleksandrov u8 state) 1352a580c76dSNikolay Aleksandrov { 1353a580c76dSNikolay Aleksandrov WRITE_ONCE(vg->pvid_state, state); 1354a580c76dSNikolay Aleksandrov } 1355a580c76dSNikolay Aleksandrov 1356a580c76dSNikolay Aleksandrov /* learn_allow is true at ingress and false at egress */ 1357a580c76dSNikolay Aleksandrov static inline bool br_vlan_state_allowed(u8 state, bool learn_allow) 1358a580c76dSNikolay Aleksandrov { 1359a580c76dSNikolay Aleksandrov switch (state) { 1360a580c76dSNikolay Aleksandrov case BR_STATE_LEARNING: 1361a580c76dSNikolay Aleksandrov return learn_allow; 1362a580c76dSNikolay Aleksandrov case BR_STATE_FORWARDING: 1363a580c76dSNikolay Aleksandrov return true; 1364a580c76dSNikolay Aleksandrov default: 1365a580c76dSNikolay Aleksandrov return false; 1366a580c76dSNikolay Aleksandrov } 1367a580c76dSNikolay Aleksandrov } 13687a53e718SNikolay Aleksandrov #endif 13697a53e718SNikolay Aleksandrov 13701a4ba64dSPablo Neira Ayuso struct nf_br_ops { 13711a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 13721a4ba64dSPablo Neira Ayuso }; 13731a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 13741a4ba64dSPablo Neira Ayuso 13751da177e4SLinus Torvalds /* br_netfilter.c */ 137634666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 137734666d46SPablo Neira Ayuso int br_nf_core_init(void); 137834666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1379348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1380c0909713SStephen Hemminger #else 138134666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 138234666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 13834adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1384c0909713SStephen Hemminger #endif 13851da177e4SLinus Torvalds 13861da177e4SLinus Torvalds /* br_stp.c */ 1387775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1388348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1389348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1390348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 13911da177e4SLinus Torvalds 1392348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1393348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1394348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1395348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 139682dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 13979e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 139814f98f25Sstephen hemminger 139914f98f25Sstephen hemminger 14001da177e4SLinus Torvalds /* br_stp_if.c */ 1401348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1402348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1403419dba8aSHoratiu Vultur int br_stp_set_enabled(struct net_bridge *br, unsigned long val, 1404419dba8aSHoratiu Vultur struct netlink_ext_ack *extack); 1405348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1406348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1407348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1408348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1409348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1410348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1411348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1412348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 14131da177e4SLinus Torvalds 14141da177e4SLinus Torvalds /* br_stp_bpdu.c */ 14157c85fbf0SPatrick McHardy struct stp_proto; 1416348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 14177c85fbf0SPatrick McHardy struct net_device *dev); 14181da177e4SLinus Torvalds 14191da177e4SLinus Torvalds /* br_stp_timer.c */ 1420348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1421348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1422348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 14231da177e4SLinus Torvalds 14241da177e4SLinus Torvalds /* br.c */ 1425e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1426da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1427da678292SMichał Mirosław #endif 14281da177e4SLinus Torvalds 142965369933SHoratiu Vultur /* br_mrp.c */ 143065369933SHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 143165369933SHoratiu Vultur int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 143265369933SHoratiu Vultur struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 143365369933SHoratiu Vultur bool br_mrp_enabled(struct net_bridge *br); 143465369933SHoratiu Vultur void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p); 1435df42ef22SHoratiu Vultur int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br); 143665369933SHoratiu Vultur #else 143765369933SHoratiu Vultur static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 143865369933SHoratiu Vultur struct nlattr *attr, int cmd, 143965369933SHoratiu Vultur struct netlink_ext_ack *extack) 144065369933SHoratiu Vultur { 144165369933SHoratiu Vultur return -EOPNOTSUPP; 144265369933SHoratiu Vultur } 144365369933SHoratiu Vultur 144465369933SHoratiu Vultur static inline bool br_mrp_enabled(struct net_bridge *br) 144565369933SHoratiu Vultur { 14468741e184SJason Yan return false; 144765369933SHoratiu Vultur } 144865369933SHoratiu Vultur 144965369933SHoratiu Vultur static inline void br_mrp_port_del(struct net_bridge *br, 145065369933SHoratiu Vultur struct net_bridge_port *p) 145165369933SHoratiu Vultur { 145265369933SHoratiu Vultur } 1453df42ef22SHoratiu Vultur 1454df42ef22SHoratiu Vultur static inline int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br) 1455df42ef22SHoratiu Vultur { 1456df42ef22SHoratiu Vultur return 0; 1457df42ef22SHoratiu Vultur } 1458df42ef22SHoratiu Vultur 145965369933SHoratiu Vultur #endif 146065369933SHoratiu Vultur 14612be665c3SHenrik Bjoernlund /* br_cfm.c */ 146286a14b79SHenrik Bjoernlund #if IS_ENABLED(CONFIG_BRIDGE_CFM) 14632be665c3SHenrik Bjoernlund int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p, 14642be665c3SHenrik Bjoernlund struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 14652be665c3SHenrik Bjoernlund bool br_cfm_created(struct net_bridge *br); 146686a14b79SHenrik Bjoernlund void br_cfm_port_del(struct net_bridge *br, struct net_bridge_port *p); 14675e312fc0SHenrik Bjoernlund int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br); 1468b6d0425bSHenrik Bjoernlund int br_cfm_status_fill_info(struct sk_buff *skb, 1469b6d0425bSHenrik Bjoernlund struct net_bridge *br, 1470b6d0425bSHenrik Bjoernlund bool getlink); 1471b6d0425bSHenrik Bjoernlund int br_cfm_mep_count(struct net_bridge *br, u32 *count); 1472b6d0425bSHenrik Bjoernlund int br_cfm_peer_mep_count(struct net_bridge *br, u32 *count); 147386a14b79SHenrik Bjoernlund #else 14742be665c3SHenrik Bjoernlund static inline int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p, 14752be665c3SHenrik Bjoernlund struct nlattr *attr, int cmd, 14762be665c3SHenrik Bjoernlund struct netlink_ext_ack *extack) 14772be665c3SHenrik Bjoernlund { 14782be665c3SHenrik Bjoernlund return -EOPNOTSUPP; 14792be665c3SHenrik Bjoernlund } 14802be665c3SHenrik Bjoernlund 14812be665c3SHenrik Bjoernlund static inline bool br_cfm_created(struct net_bridge *br) 14822be665c3SHenrik Bjoernlund { 14832be665c3SHenrik Bjoernlund return false; 14842be665c3SHenrik Bjoernlund } 14852be665c3SHenrik Bjoernlund 148686a14b79SHenrik Bjoernlund static inline void br_cfm_port_del(struct net_bridge *br, 148786a14b79SHenrik Bjoernlund struct net_bridge_port *p) 148886a14b79SHenrik Bjoernlund { 148986a14b79SHenrik Bjoernlund } 14905e312fc0SHenrik Bjoernlund 14915e312fc0SHenrik Bjoernlund static inline int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br) 14925e312fc0SHenrik Bjoernlund { 14935e312fc0SHenrik Bjoernlund return -EOPNOTSUPP; 14945e312fc0SHenrik Bjoernlund } 1495e77824d8SHenrik Bjoernlund 1496b6d0425bSHenrik Bjoernlund static inline int br_cfm_status_fill_info(struct sk_buff *skb, 1497b6d0425bSHenrik Bjoernlund struct net_bridge *br, 1498b6d0425bSHenrik Bjoernlund bool getlink) 1499b6d0425bSHenrik Bjoernlund { 1500b6d0425bSHenrik Bjoernlund return -EOPNOTSUPP; 1501b6d0425bSHenrik Bjoernlund } 1502b6d0425bSHenrik Bjoernlund 1503b6d0425bSHenrik Bjoernlund static inline int br_cfm_mep_count(struct net_bridge *br, u32 *count) 1504b6d0425bSHenrik Bjoernlund { 1505b6d0425bSHenrik Bjoernlund return -EOPNOTSUPP; 1506b6d0425bSHenrik Bjoernlund } 1507b6d0425bSHenrik Bjoernlund 1508b6d0425bSHenrik Bjoernlund static inline int br_cfm_peer_mep_count(struct net_bridge *br, u32 *count) 1509e77824d8SHenrik Bjoernlund { 1510e77824d8SHenrik Bjoernlund return -EOPNOTSUPP; 1511e77824d8SHenrik Bjoernlund } 151286a14b79SHenrik Bjoernlund #endif 151386a14b79SHenrik Bjoernlund 151411dc1f36SStephen Hemminger /* br_netlink.c */ 1515149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1516348662a1SJoe Perches int br_netlink_init(void); 1517348662a1SJoe Perches void br_netlink_fini(void); 151892899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 151992899063SNikolay Aleksandrov const struct net_bridge_port *port); 1520b6d0425bSHenrik Bjoernlund void br_info_notify(int event, const struct net_bridge *br, 1521b6d0425bSHenrik Bjoernlund const struct net_bridge_port *port, u32 filter); 15222fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 15232fd527b7SPetr Machata struct netlink_ext_ack *extack); 1524add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1525348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 152646c264daSNicolas Dichtel u32 filter_mask, int nlflags); 1527f26b2965SNikolay Aleksandrov int br_process_vlan_info(struct net_bridge *br, 1528f26b2965SNikolay Aleksandrov struct net_bridge_port *p, int cmd, 1529f26b2965SNikolay Aleksandrov struct bridge_vlan_info *vinfo_curr, 1530f26b2965SNikolay Aleksandrov struct bridge_vlan_info **vinfo_last, 1531f26b2965SNikolay Aleksandrov bool *changed, 1532f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack); 153311dc1f36SStephen Hemminger 15341da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 15351da177e4SLinus Torvalds /* br_sysfs_if.c */ 153652cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1537348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1538348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 15391da177e4SLinus Torvalds 15401da177e4SLinus Torvalds /* br_sysfs_br.c */ 1541348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1542348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 15431da177e4SLinus Torvalds 15441da177e4SLinus Torvalds #else 15451da177e4SLinus Torvalds 15460cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 15470cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 15480cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 15490cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 15501da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 15511da177e4SLinus Torvalds 15526bc506b4SIdo Schimmel /* br_switchdev.c */ 15536bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 15546bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 15556bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 15566bc506b4SIdo Schimmel struct sk_buff *skb); 15576bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 15586bc506b4SIdo Schimmel const struct sk_buff *skb); 15593922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 15603922285dSArkadi Sharshevsky unsigned long flags, 15613922285dSArkadi Sharshevsky unsigned long mask); 15626b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 15636b26b51bSArkadi Sharshevsky int type); 1564169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1565169327d5SPetr Machata struct netlink_ext_ack *extack); 1566d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1567f1c2eddfSIdo Schimmel 1568f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1569f1c2eddfSIdo Schimmel { 1570f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1571f1c2eddfSIdo Schimmel } 15726bc506b4SIdo Schimmel #else 15736bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 15746bc506b4SIdo Schimmel { 15756bc506b4SIdo Schimmel return 0; 15766bc506b4SIdo Schimmel } 15776bc506b4SIdo Schimmel 15786bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 15796bc506b4SIdo Schimmel struct sk_buff *skb) 15806bc506b4SIdo Schimmel { 15816bc506b4SIdo Schimmel } 15826bc506b4SIdo Schimmel 15836bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 15846bc506b4SIdo Schimmel const struct sk_buff *skb) 15856bc506b4SIdo Schimmel { 15866bc506b4SIdo Schimmel return true; 15876bc506b4SIdo Schimmel } 15883922285dSArkadi Sharshevsky 15893922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 15903922285dSArkadi Sharshevsky unsigned long flags, 15913922285dSArkadi Sharshevsky unsigned long mask) 15923922285dSArkadi Sharshevsky { 15933922285dSArkadi Sharshevsky return 0; 15943922285dSArkadi Sharshevsky } 15956b26b51bSArkadi Sharshevsky 1596d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1597169327d5SPetr Machata u16 vid, u16 flags, 1598169327d5SPetr Machata struct netlink_ext_ack *extack) 1599d66e4348SPetr Machata { 1600d66e4348SPetr Machata return -EOPNOTSUPP; 1601d66e4348SPetr Machata } 1602d66e4348SPetr Machata 1603d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1604d66e4348SPetr Machata { 1605d66e4348SPetr Machata return -EOPNOTSUPP; 1606d66e4348SPetr Machata } 1607d66e4348SPetr Machata 16086b26b51bSArkadi Sharshevsky static inline void 16096b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 16106b26b51bSArkadi Sharshevsky { 16116b26b51bSArkadi Sharshevsky } 1612f1c2eddfSIdo Schimmel 1613f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1614f1c2eddfSIdo Schimmel { 1615f1c2eddfSIdo Schimmel } 16166bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 16176bc506b4SIdo Schimmel 1618057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1619821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1620057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1621057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1622ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1623ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1624ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 16251da177e4SLinus Torvalds #endif 1626