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 926dada9b1SNikolay Aleksandrov struct br_vlan_stats { 936dada9b1SNikolay Aleksandrov u64 rx_bytes; 946dada9b1SNikolay Aleksandrov u64 rx_packets; 956dada9b1SNikolay Aleksandrov u64 tx_bytes; 966dada9b1SNikolay Aleksandrov u64 tx_packets; 976dada9b1SNikolay Aleksandrov struct u64_stats_sync syncp; 986dada9b1SNikolay Aleksandrov }; 996dada9b1SNikolay Aleksandrov 100efa5356bSRoopa Prabhu struct br_tunnel_info { 101efa5356bSRoopa Prabhu __be64 tunnel_id; 102efa5356bSRoopa Prabhu struct metadata_dst *tunnel_dst; 103efa5356bSRoopa Prabhu }; 104efa5356bSRoopa Prabhu 1059d332e69SNikolay Aleksandrov /* private vlan flags */ 1069d332e69SNikolay Aleksandrov enum { 1079d332e69SNikolay Aleksandrov BR_VLFLAG_PER_PORT_STATS = BIT(0), 10827973793SIdo Schimmel BR_VLFLAG_ADDED_BY_SWITCHDEV = BIT(1), 1099d332e69SNikolay Aleksandrov }; 1109d332e69SNikolay Aleksandrov 1112594e906SNikolay Aleksandrov /** 1122594e906SNikolay Aleksandrov * struct net_bridge_vlan - per-vlan entry 1132594e906SNikolay Aleksandrov * 1142594e906SNikolay Aleksandrov * @vnode: rhashtable member 1152594e906SNikolay Aleksandrov * @vid: VLAN id 1162594e906SNikolay Aleksandrov * @flags: bridge vlan flags 1179d332e69SNikolay Aleksandrov * @priv_flags: private (in-kernel) bridge vlan flags 118a580c76dSNikolay Aleksandrov * @state: STP state (e.g. blocking, learning, forwarding) 1196dada9b1SNikolay Aleksandrov * @stats: per-cpu VLAN statistics 1202594e906SNikolay Aleksandrov * @br: if MASTER flag set, this points to a bridge struct 1212594e906SNikolay Aleksandrov * @port: if MASTER flag unset, this points to a port struct 1222594e906SNikolay Aleksandrov * @refcnt: if MASTER flag set, this is bumped for each port referencing it 1232594e906SNikolay Aleksandrov * @brvlan: if MASTER flag unset, this points to the global per-VLAN context 1242594e906SNikolay Aleksandrov * for this VLAN entry 1252594e906SNikolay Aleksandrov * @vlist: sorted list of VLAN entries 1262594e906SNikolay Aleksandrov * @rcu: used for entry destruction 1272594e906SNikolay Aleksandrov * 1282594e906SNikolay Aleksandrov * This structure is shared between the global per-VLAN entries contained in 1292594e906SNikolay Aleksandrov * the bridge rhashtable and the local per-port per-VLAN entries contained in 1302594e906SNikolay Aleksandrov * the port's rhashtable. The union entries should be interpreted depending on 1312594e906SNikolay Aleksandrov * the entry flags that are set. 1322594e906SNikolay Aleksandrov */ 1332594e906SNikolay Aleksandrov struct net_bridge_vlan { 1342594e906SNikolay Aleksandrov struct rhash_head vnode; 135efa5356bSRoopa Prabhu struct rhash_head tnode; 1362594e906SNikolay Aleksandrov u16 vid; 1372594e906SNikolay Aleksandrov u16 flags; 1389d332e69SNikolay Aleksandrov u16 priv_flags; 139a580c76dSNikolay Aleksandrov u8 state; 1406dada9b1SNikolay Aleksandrov struct br_vlan_stats __percpu *stats; 141243a2e63SVlad Yasevich union { 142243a2e63SVlad Yasevich struct net_bridge *br; 1432594e906SNikolay Aleksandrov struct net_bridge_port *port; 1442594e906SNikolay Aleksandrov }; 1452594e906SNikolay Aleksandrov union { 14625127759SReshetova, Elena refcount_t refcnt; 1472594e906SNikolay Aleksandrov struct net_bridge_vlan *brvlan; 1482594e906SNikolay Aleksandrov }; 149efa5356bSRoopa Prabhu 150efa5356bSRoopa Prabhu struct br_tunnel_info tinfo; 151efa5356bSRoopa Prabhu 1522594e906SNikolay Aleksandrov struct list_head vlist; 1532594e906SNikolay Aleksandrov 154243a2e63SVlad Yasevich struct rcu_head rcu; 1552594e906SNikolay Aleksandrov }; 1562594e906SNikolay Aleksandrov 1572594e906SNikolay Aleksandrov /** 1582594e906SNikolay Aleksandrov * struct net_bridge_vlan_group 1592594e906SNikolay Aleksandrov * 1602594e906SNikolay Aleksandrov * @vlan_hash: VLAN entry rhashtable 1612594e906SNikolay Aleksandrov * @vlan_list: sorted VLAN entry list 1622594e906SNikolay Aleksandrov * @num_vlans: number of total VLAN entries 16377751ee8SNikolay Aleksandrov * @pvid: PVID VLAN id 164a580c76dSNikolay Aleksandrov * @pvid_state: PVID's STP state (e.g. forwarding, learning, blocking) 1652594e906SNikolay Aleksandrov * 1662594e906SNikolay Aleksandrov * IMPORTANT: Be careful when checking if there're VLAN entries using list 1672594e906SNikolay Aleksandrov * primitives because the bridge can have entries in its list which 1682594e906SNikolay Aleksandrov * are just for global context but not for filtering, i.e. they have 1692594e906SNikolay Aleksandrov * the master flag set but not the brentry flag. If you have to check 1702594e906SNikolay Aleksandrov * if there're "real" entries in the bridge please test @num_vlans 1712594e906SNikolay Aleksandrov */ 1722594e906SNikolay Aleksandrov struct net_bridge_vlan_group { 1732594e906SNikolay Aleksandrov struct rhashtable vlan_hash; 174efa5356bSRoopa Prabhu struct rhashtable tunnel_hash; 1752594e906SNikolay Aleksandrov struct list_head vlan_list; 1766cbdceebSVlad Yasevich u16 num_vlans; 17777751ee8SNikolay Aleksandrov u16 pvid; 178a580c76dSNikolay Aleksandrov u8 pvid_state; 179243a2e63SVlad Yasevich }; 180243a2e63SVlad Yasevich 1816869c3b0SNikolay Aleksandrov /* bridge fdb flags */ 1826869c3b0SNikolay Aleksandrov enum { 1836869c3b0SNikolay Aleksandrov BR_FDB_LOCAL, 18429e63fffSNikolay Aleksandrov BR_FDB_STATIC, 185e0458d9aSNikolay Aleksandrov BR_FDB_STICKY, 186ac3ca6afSNikolay Aleksandrov BR_FDB_ADDED_BY_USER, 187b5cd9f7cSNikolay Aleksandrov BR_FDB_ADDED_BY_EXT_LEARN, 188d38c6e3dSNikolay Aleksandrov BR_FDB_OFFLOADED, 18931cbc39bSNikolay Aleksandrov BR_FDB_NOTIFY, 19031cbc39bSNikolay Aleksandrov BR_FDB_NOTIFY_INACTIVE 1916869c3b0SNikolay Aleksandrov }; 1926869c3b0SNikolay Aleksandrov 193eb793583SNikolay Aleksandrov struct net_bridge_fdb_key { 194eb793583SNikolay Aleksandrov mac_addr addr; 195eb793583SNikolay Aleksandrov u16 vlan_id; 196eb793583SNikolay Aleksandrov }; 197eb793583SNikolay Aleksandrov 1981214628cSNikolay Aleksandrov struct net_bridge_fdb_entry { 199eb793583SNikolay Aleksandrov struct rhash_head rhnode; 2001da177e4SLinus Torvalds struct net_bridge_port *dst; 2011da177e4SLinus Torvalds 202eb793583SNikolay Aleksandrov struct net_bridge_fdb_key key; 203eb793583SNikolay Aleksandrov struct hlist_node fdb_node; 2046869c3b0SNikolay Aleksandrov unsigned long flags; 2051214628cSNikolay Aleksandrov 2061214628cSNikolay Aleksandrov /* write-heavy members should not affect lookups */ 2071214628cSNikolay Aleksandrov unsigned long updated ____cacheline_aligned_in_smp; 2081214628cSNikolay Aleksandrov unsigned long used; 2091214628cSNikolay Aleksandrov 210b22fbf22SNikolay Aleksandrov struct rcu_head rcu; 2111da177e4SLinus Torvalds }; 2121da177e4SLinus Torvalds 2139d06b6d8SElad Raz #define MDB_PG_FLAGS_PERMANENT BIT(0) 2149d06b6d8SElad Raz #define MDB_PG_FLAGS_OFFLOAD BIT(1) 2153247b272SNikolay Aleksandrov #define MDB_PG_FLAGS_FAST_LEAVE BIT(2) 2168266a049SNikolay Aleksandrov #define MDB_PG_FLAGS_STAR_EXCL BIT(3) 2179116ffbfSNikolay Aleksandrov #define MDB_PG_FLAGS_BLOCKED BIT(4) 2189d06b6d8SElad Raz 2198b671779SNikolay Aleksandrov #define PG_SRC_ENT_LIMIT 32 2208b671779SNikolay Aleksandrov 2218b671779SNikolay Aleksandrov #define BR_SGRP_F_DELETE BIT(0) 2228b671779SNikolay Aleksandrov #define BR_SGRP_F_SEND BIT(1) 223b0812368SNikolay Aleksandrov #define BR_SGRP_F_INSTALLED BIT(2) 2248b671779SNikolay Aleksandrov 225e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc { 226e12cec65SNikolay Aleksandrov struct hlist_node gc_node; 227e12cec65SNikolay Aleksandrov void (*destroy)(struct net_bridge_mcast_gc *gc); 228e12cec65SNikolay Aleksandrov }; 229e12cec65SNikolay Aleksandrov 2308b671779SNikolay Aleksandrov struct net_bridge_group_src { 2318b671779SNikolay Aleksandrov struct hlist_node node; 2328b671779SNikolay Aleksandrov 2338b671779SNikolay Aleksandrov struct br_ip addr; 2348b671779SNikolay Aleksandrov struct net_bridge_port_group *pg; 2358b671779SNikolay Aleksandrov u8 flags; 236438ef2d0SNikolay Aleksandrov u8 src_query_rexmit_cnt; 2378b671779SNikolay Aleksandrov struct timer_list timer; 2388b671779SNikolay Aleksandrov 2398b671779SNikolay Aleksandrov struct net_bridge *br; 240e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2418b671779SNikolay Aleksandrov struct rcu_head rcu; 2428b671779SNikolay Aleksandrov }; 2438b671779SNikolay Aleksandrov 244085b53c8SNikolay Aleksandrov struct net_bridge_port_group_sg_key { 245eb1d1641SHerbert Xu struct net_bridge_port *port; 2468ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 247085b53c8SNikolay Aleksandrov }; 248085b53c8SNikolay Aleksandrov 249085b53c8SNikolay Aleksandrov struct net_bridge_port_group { 250085b53c8SNikolay Aleksandrov struct net_bridge_port_group __rcu *next; 251085b53c8SNikolay Aleksandrov struct net_bridge_port_group_sg_key key; 252206e7323SThomas Martitz unsigned char eth_addr[ETH_ALEN] __aligned(2); 2539d06b6d8SElad Raz unsigned char flags; 2548b671779SNikolay Aleksandrov unsigned char filter_mode; 25542c11ccfSNikolay Aleksandrov unsigned char grp_query_rexmit_cnt; 2568f8cb77eSNikolay Aleksandrov unsigned char rt_protocol; 2576ec0d0eeSNikolay Aleksandrov 2588b671779SNikolay Aleksandrov struct hlist_head src_list; 2598b671779SNikolay Aleksandrov unsigned int src_ents; 2606ec0d0eeSNikolay Aleksandrov struct timer_list timer; 26142c11ccfSNikolay Aleksandrov struct timer_list rexmit_timer; 2626ec0d0eeSNikolay Aleksandrov struct hlist_node mglist; 2636ec0d0eeSNikolay Aleksandrov 264085b53c8SNikolay Aleksandrov struct rhash_head rhnode; 265e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2666ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 267eb1d1641SHerbert Xu }; 268eb1d1641SHerbert Xu 2691c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_entry { 27019e3a9c9SNikolay Aleksandrov struct rhash_head rhnode; 271eb1d1641SHerbert Xu struct net_bridge *br; 272e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 2738ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 274ff0fd34eSAndrew Lunn bool host_joined; 2756ec0d0eeSNikolay Aleksandrov 2766ec0d0eeSNikolay Aleksandrov struct timer_list timer; 27719e3a9c9SNikolay Aleksandrov struct hlist_node mdb_node; 2786ec0d0eeSNikolay Aleksandrov 279e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2806ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 281eb1d1641SHerbert Xu }; 282eb1d1641SHerbert Xu 2831f90c7f3SNikolay Aleksandrov struct net_bridge_port { 2841da177e4SLinus Torvalds struct net_bridge *br; 2851da177e4SLinus Torvalds struct net_device *dev; 2861da177e4SLinus Torvalds struct list_head list; 2871da177e4SLinus Torvalds 2881f90c7f3SNikolay Aleksandrov unsigned long flags; 2891f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 2901f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 2911f90c7f3SNikolay Aleksandrov #endif 2922756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 2931f90c7f3SNikolay Aleksandrov 2941da177e4SLinus Torvalds /* STP */ 2951da177e4SLinus Torvalds u8 priority; 2961da177e4SLinus Torvalds u8 state; 2971da177e4SLinus Torvalds u16 port_no; 2981da177e4SLinus Torvalds unsigned char topology_change_ack; 2991da177e4SLinus Torvalds unsigned char config_pending; 3001da177e4SLinus Torvalds port_id port_id; 3011da177e4SLinus Torvalds port_id designated_port; 3021da177e4SLinus Torvalds bridge_id designated_root; 3031da177e4SLinus Torvalds bridge_id designated_bridge; 3041da177e4SLinus Torvalds u32 path_cost; 3051da177e4SLinus Torvalds u32 designated_cost; 3060c03150eSstephen hemminger unsigned long designated_age; 3071da177e4SLinus Torvalds 3081da177e4SLinus Torvalds struct timer_list forward_delay_timer; 3091da177e4SLinus Torvalds struct timer_list hold_timer; 3101da177e4SLinus Torvalds struct timer_list message_age_timer; 3111da177e4SLinus Torvalds struct kobject kobj; 3121da177e4SLinus Torvalds struct rcu_head rcu; 3133982d3d2SFischer, Anna 314eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 31590010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 316cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 31790010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 318cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 319eb1d1641SHerbert Xu unsigned char multicast_router; 3201080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 321eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 322eb1d1641SHerbert Xu struct hlist_head mglist; 323eb1d1641SHerbert Xu struct hlist_node rlist; 324eb1d1641SHerbert Xu #endif 325e0f43752SSimon Arlott 326e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 327e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 328e0f43752SSimon Arlott #endif 32991d2c34aSHerbert Xu 33091d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 33191d2c34aSHerbert Xu struct netpoll *np; 33291d2c34aSHerbert Xu #endif 3336bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 3346bc506b4SIdo Schimmel int offload_fwd_mark; 3356bc506b4SIdo Schimmel #endif 3365af48b59SNikolay Aleksandrov u16 group_fwd_mask; 3372756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 338de179966SVivien Didelot 339de179966SVivien Didelot struct bridge_stp_xstats stp_xstats; 3401da177e4SLinus Torvalds }; 3411da177e4SLinus Torvalds 342705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 343705e0deaSTyler Hicks 344e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 345f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 346e028e4b8SVlad Yasevich 347b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 348b5ed54e9Sstephen hemminger { 349716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 350b5ed54e9Sstephen hemminger } 351b5ed54e9Sstephen hemminger 3521fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 353b5ed54e9Sstephen hemminger { 35435f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 355ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 356b5ed54e9Sstephen hemminger } 357b5ed54e9Sstephen hemminger 3580baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 3590baa10ffSArkadi Sharshevsky { 36035f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 3610baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3620baa10ffSArkadi Sharshevsky } 3630baa10ffSArkadi Sharshevsky 364ae75767eSNikolay Aleksandrov enum net_bridge_opts { 365ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 366ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 3678df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 3688df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 3698df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 370be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 37113cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 372675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 373675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 374675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 375675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 376c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 3773341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 3789163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 37970e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 3809c0ec2e7SMike Manning BROPT_VLAN_BRIDGE_BINDING, 381ae75767eSNikolay Aleksandrov }; 382ae75767eSNikolay Aleksandrov 3831f90c7f3SNikolay Aleksandrov struct net_bridge { 3841da177e4SLinus Torvalds spinlock_t lock; 3851f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 38690c628ddSHenrik Bjoernlund struct hlist_head frame_type_list; 3871da177e4SLinus Torvalds struct net_device *dev; 3888f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 389ae75767eSNikolay Aleksandrov unsigned long options; 3901f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3911f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3921f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3931f90c7f3SNikolay Aleksandrov u16 default_pvid; 3941f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3951f90c7f3SNikolay Aleksandrov #endif 3961f90c7f3SNikolay Aleksandrov 397eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 39890c628ddSHenrik Bjoernlund struct list_head port_list; 39934666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 400efb6de9bSBernhard Thaler union { 4014adf0af6SSimon Wunderlich struct rtable fake_rtable; 402efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 403efb6de9bSBernhard Thaler }; 4044adf0af6SSimon Wunderlich #endif 405515853ccSstephen hemminger u16 group_fwd_mask; 406f2808d22SToshiaki Makita u16 group_fwd_mask_required; 407515853ccSstephen hemminger 4081da177e4SLinus Torvalds /* STP */ 4091da177e4SLinus Torvalds bridge_id designated_root; 4101da177e4SLinus Torvalds bridge_id bridge_id; 4111f90c7f3SNikolay Aleksandrov unsigned char topology_change; 4121f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 4131f90c7f3SNikolay Aleksandrov u16 root_port; 4141da177e4SLinus Torvalds unsigned long max_age; 4151da177e4SLinus Torvalds unsigned long hello_time; 4161da177e4SLinus Torvalds unsigned long forward_delay; 4171da177e4SLinus Torvalds unsigned long ageing_time; 41834d8acd8SVivien Didelot unsigned long bridge_max_age; 4191da177e4SLinus Torvalds unsigned long bridge_hello_time; 4201da177e4SLinus Torvalds unsigned long bridge_forward_delay; 42134d8acd8SVivien Didelot unsigned long bridge_ageing_time; 42235750b0bSNikolay Aleksandrov u32 root_path_cost; 4231da177e4SLinus Torvalds 424fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 4259cde0708SStephen Hemminger 4269cde0708SStephen Hemminger enum { 4279cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 4289cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 4299cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 4309cde0708SStephen Hemminger } stp_enabled; 4319cde0708SStephen Hemminger 432eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 433eb1d1641SHerbert Xu 434eb1d1641SHerbert Xu u32 hash_max; 435eb1d1641SHerbert Xu 436eb1d1641SHerbert Xu u32 multicast_last_member_count; 437eb1d1641SHerbert Xu u32 multicast_startup_query_count; 438eb1d1641SHerbert Xu 4395e923585SNikolay Aleksandrov u8 multicast_igmp_version; 440675779adSNikolay Aleksandrov u8 multicast_router; 441675779adSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 442675779adSNikolay Aleksandrov u8 multicast_mld_version; 443675779adSNikolay Aleksandrov #endif 44435750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 445eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 446eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 447eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 448eb1d1641SHerbert Xu unsigned long multicast_query_interval; 449eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 450eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 451eb1d1641SHerbert Xu 45219e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 453085b53c8SNikolay Aleksandrov struct rhashtable sg_port_tbl; 45419e3a9c9SNikolay Aleksandrov 455e12cec65SNikolay Aleksandrov struct hlist_head mcast_gc_list; 45619e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 457eb1d1641SHerbert Xu struct hlist_head router_list; 458eb1d1641SHerbert Xu 459eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 46090010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 46190010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 462dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 4631080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 464cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 46590010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 46690010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 467dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 468cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 469e12cec65SNikolay Aleksandrov struct work_struct mcast_gc_work; 470eb1d1641SHerbert Xu #endif 471eb1d1641SHerbert Xu 4721da177e4SLinus Torvalds struct timer_list hello_timer; 4731da177e4SLinus Torvalds struct timer_list tcn_timer; 4741da177e4SLinus Torvalds struct timer_list topology_change_timer; 475f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 47643b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 477e028e4b8SVlad Yasevich u32 auto_cnt; 4786bc506b4SIdo Schimmel 4796bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4806bc506b4SIdo Schimmel int offload_fwd_mark; 4816bc506b4SIdo Schimmel #endif 482eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4834b8d7d4cSHoratiu Vultur 4844b8d7d4cSHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 4859b14d1f8SHoratiu Vultur struct list_head mrp_list; 4864b8d7d4cSHoratiu Vultur #endif 487f323aa54SHenrik Bjoernlund #if IS_ENABLED(CONFIG_BRIDGE_CFM) 488f323aa54SHenrik Bjoernlund struct hlist_head mep_list; 489f323aa54SHenrik Bjoernlund #endif 4901da177e4SLinus Torvalds }; 4911da177e4SLinus Torvalds 49268b7c895SHerbert Xu struct br_input_skb_cb { 49368b7c895SHerbert Xu struct net_device *brdev; 49493fdd47eSHerbert Xu 4953c171f49SPablo Neira Ayuso u16 frag_max_size; 49632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 497f12064d1SFlorian Westphal u8 igmp; 498f12064d1SFlorian Westphal u8 mrouters_only:1; 49932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 500f12064d1SFlorian Westphal u8 proxyarp_replied:1; 501f12064d1SFlorian Westphal u8 src_port_isolated:1; 50220adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 503f12064d1SFlorian Westphal u8 vlan_filtered:1; 50420adfa1aSVlad Yasevich #endif 505223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 506223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 507223fd0adSFlorian Westphal #endif 5086bc506b4SIdo Schimmel 5096bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 5106bc506b4SIdo Schimmel int offload_fwd_mark; 5116bc506b4SIdo Schimmel #endif 51268b7c895SHerbert Xu }; 51368b7c895SHerbert Xu 51468b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 51568b7c895SHerbert Xu 51632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 51732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 51832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 51932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 52032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 52132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 52228a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 52328a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 52428a16c97Sstephen hemminger 52528a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 52628a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 52728a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 52828a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 52928a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 53028a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 53128a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 53228a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 53328a16c97Sstephen hemminger 53428a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 53528a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 53628a16c97Sstephen hemminger 5371da177e4SLinus Torvalds /* called under bridge lock */ 5381da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 5391da177e4SLinus Torvalds { 5401da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 5411da177e4SLinus Torvalds } 5421da177e4SLinus Torvalds 5432594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 5442594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 5452594e906SNikolay Aleksandrov { 5462594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 5472594e906SNikolay Aleksandrov } 5482594e906SNikolay Aleksandrov 5492594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 5502594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 5512594e906SNikolay Aleksandrov { 5522594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 5532594e906SNikolay Aleksandrov } 5542594e906SNikolay Aleksandrov 5556be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 5562594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 5572594e906SNikolay Aleksandrov { 5582594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 5592594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 5602594e906SNikolay Aleksandrov return true; 5612594e906SNikolay Aleksandrov else 5622594e906SNikolay Aleksandrov return false; 5632594e906SNikolay Aleksandrov } 5642594e906SNikolay Aleksandrov 5652594e906SNikolay Aleksandrov return true; 5662594e906SNikolay Aleksandrov } 5672594e906SNikolay Aleksandrov 5685d1fcaf3SNikolay Aleksandrov static inline bool nbp_state_should_learn(const struct net_bridge_port *p) 5695d1fcaf3SNikolay Aleksandrov { 5705d1fcaf3SNikolay Aleksandrov return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; 5715d1fcaf3SNikolay Aleksandrov } 5725d1fcaf3SNikolay Aleksandrov 5738f4cc940SNikolay Aleksandrov static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack) 5745a46facbSNikolay Aleksandrov { 5758f4cc940SNikolay Aleksandrov bool ret = vid > 0 && vid < VLAN_VID_MASK; 5768f4cc940SNikolay Aleksandrov 5778f4cc940SNikolay Aleksandrov if (!ret) 5788f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid"); 5798f4cc940SNikolay Aleksandrov 5808f4cc940SNikolay Aleksandrov return ret; 5815a46facbSNikolay Aleksandrov } 5825a46facbSNikolay Aleksandrov 5835a46facbSNikolay Aleksandrov static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, 5848f4cc940SNikolay Aleksandrov const struct bridge_vlan_info *last, 5858f4cc940SNikolay Aleksandrov struct netlink_ext_ack *extack) 5865a46facbSNikolay Aleksandrov { 5875a46facbSNikolay Aleksandrov /* pvid flag is not allowed in ranges */ 5888f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_PVID) { 5898f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range"); 5905a46facbSNikolay Aleksandrov return false; 5918f4cc940SNikolay Aleksandrov } 5925a46facbSNikolay Aleksandrov 5935a46facbSNikolay Aleksandrov /* when cur is the range end, check if: 5945a46facbSNikolay Aleksandrov * - it has range start flag 5955a46facbSNikolay Aleksandrov * - range ids are invalid (end is equal to or before start) 5965a46facbSNikolay Aleksandrov */ 5975a46facbSNikolay Aleksandrov if (last) { 5988f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { 5998f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one"); 6005a46facbSNikolay Aleksandrov return false; 6018f4cc940SNikolay Aleksandrov } else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) { 6028f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing"); 6038f4cc940SNikolay Aleksandrov return false; 6048f4cc940SNikolay Aleksandrov } else if (cur->vid <= last->vid) { 6058f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); 6068f4cc940SNikolay Aleksandrov return false; 6078f4cc940SNikolay Aleksandrov } 6088f4cc940SNikolay Aleksandrov } 6098f4cc940SNikolay Aleksandrov 6108f4cc940SNikolay Aleksandrov /* check for required range flags */ 6118f4cc940SNikolay Aleksandrov if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 6128f4cc940SNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END))) { 6138f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing"); 6145a46facbSNikolay Aleksandrov return false; 6155a46facbSNikolay Aleksandrov } 6165a46facbSNikolay Aleksandrov 6175a46facbSNikolay Aleksandrov return true; 6185a46facbSNikolay Aleksandrov } 6195a46facbSNikolay Aleksandrov 620f545923bSNikolay Aleksandrov static inline int br_afspec_cmd_to_rtm(int cmd) 621f545923bSNikolay Aleksandrov { 622f545923bSNikolay Aleksandrov switch (cmd) { 623f545923bSNikolay Aleksandrov case RTM_SETLINK: 624f545923bSNikolay Aleksandrov return RTM_NEWVLAN; 625f545923bSNikolay Aleksandrov case RTM_DELLINK: 626f545923bSNikolay Aleksandrov return RTM_DELVLAN; 627f545923bSNikolay Aleksandrov } 628f545923bSNikolay Aleksandrov 629f545923bSNikolay Aleksandrov return 0; 630f545923bSNikolay Aleksandrov } 631f545923bSNikolay Aleksandrov 632ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 633ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 634ae75767eSNikolay Aleksandrov { 635ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 636ae75767eSNikolay Aleksandrov } 637ae75767eSNikolay Aleksandrov 638a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 639a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 640a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 641a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 642a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 643a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 644a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 645a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 646ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 647ae75767eSNikolay Aleksandrov 6481da177e4SLinus Torvalds /* br_device.c */ 649348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 650348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 651348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 652cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 65391d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 65491d2c34aSHerbert Xu struct sk_buff *skb) 65591d2c34aSHerbert Xu { 656f78ed220SEric Dumazet netpoll_send_skb(p->np, skb); 65791d2c34aSHerbert Xu } 65891d2c34aSHerbert Xu 659a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 660348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 66191d2c34aSHerbert Xu #else 6629f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 66391d2c34aSHerbert Xu struct sk_buff *skb) 66491d2c34aSHerbert Xu { 66591d2c34aSHerbert Xu } 66691d2c34aSHerbert Xu 667a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 66891d2c34aSHerbert Xu { 66991d2c34aSHerbert Xu return 0; 67091d2c34aSHerbert Xu } 67191d2c34aSHerbert Xu 67291d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 67391d2c34aSHerbert Xu { 67491d2c34aSHerbert Xu } 675cfb478daSstephen hemminger #endif 6761da177e4SLinus Torvalds 6771da177e4SLinus Torvalds /* br_fdb.c */ 678348662a1SJoe Perches int br_fdb_init(void); 679348662a1SJoe Perches void br_fdb_fini(void); 680eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 681eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 682348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 683424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 684424bb9c9SToshiaki Makita const struct net_bridge_port *p, 685424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 686348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 687348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 688f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 689348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 6901ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 691bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 692bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 693bfd0aeacSNikolay Aleksandrov __u16 vid); 694348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 695348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 696348662a1SJoe Perches unsigned long off); 697348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 698348662a1SJoe Perches const unsigned char *addr, u16 vid); 699348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 700be0c5677SNikolay Aleksandrov const unsigned char *addr, u16 vid, unsigned long flags); 70177162022SJohn Fastabend 702348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 703f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 704348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 70587b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 70687b0984eSPetr Machata struct netlink_ext_ack *extack); 707348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 708d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 70947674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 71047674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 71147674562SRoopa Prabhu struct netlink_ext_ack *extack); 7128db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 7138db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 7143aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 715161d82deSPetr Machata const unsigned char *addr, u16 vid, 716161d82deSPetr Machata bool swdev_notify); 7173aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 718161d82deSPetr Machata const unsigned char *addr, u16 vid, 719161d82deSPetr Machata bool swdev_notify); 7209fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 721e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 7221da177e4SLinus Torvalds 7231da177e4SLinus Torvalds /* br_forward.c */ 7248addd5e7SNikolay Aleksandrov enum br_pkt_type { 7258addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 7268addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 7278addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 7288addd5e7SNikolay Aleksandrov }; 7290c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 730b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 73137b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 7320c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 73337b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 7348addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 7351da177e4SLinus Torvalds 7367d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 7377d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 7387d850abdSNikolay Aleksandrov const struct sk_buff *skb) 7397d850abdSNikolay Aleksandrov { 7407d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 7417d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 7427d850abdSNikolay Aleksandrov } 7437d850abdSNikolay Aleksandrov 7441da177e4SLinus Torvalds /* br_if.c */ 745faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 746348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 747348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 748ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 749ca752be0SDavid Ahern struct netlink_ext_ack *extack); 750348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 751804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 752348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 753c8f44affSMichał Mirosław netdev_features_t features); 754e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 7552796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 7562756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 7571da177e4SLinus Torvalds 7581da177e4SLinus Torvalds /* br_input.c */ 7590c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 7609eb8eff0SVladimir Oltean rx_handler_func_t *br_get_rx_handler(const struct net_device *dev); 7611da177e4SLinus Torvalds 76290c628ddSHenrik Bjoernlund struct br_frame_type { 76390c628ddSHenrik Bjoernlund __be16 type; 76490c628ddSHenrik Bjoernlund int (*frame_handler)(struct net_bridge_port *port, 76590c628ddSHenrik Bjoernlund struct sk_buff *skb); 76690c628ddSHenrik Bjoernlund struct hlist_node list; 76790c628ddSHenrik Bjoernlund }; 76890c628ddSHenrik Bjoernlund 76990c628ddSHenrik Bjoernlund void br_add_frame(struct net_bridge *br, struct br_frame_type *ft); 77090c628ddSHenrik Bjoernlund void br_del_frame(struct net_bridge *br, struct br_frame_type *ft); 77190c628ddSHenrik Bjoernlund 772859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 773859828c0SJiri Pirko { 7749eb8eff0SVladimir Oltean return rcu_dereference(dev->rx_handler) == br_get_rx_handler(dev); 775859828c0SJiri Pirko } 776859828c0SJiri Pirko 7774d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 7784d4fd361SPetr Machata { 7799eb8eff0SVladimir Oltean return rcu_dereference_rtnl(dev->rx_handler) == br_get_rx_handler(dev); 7804d4fd361SPetr Machata } 7814d4fd361SPetr Machata 782859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 783859828c0SJiri Pirko { 784859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 785859828c0SJiri Pirko } 786859828c0SJiri Pirko 7874d4fd361SPetr Machata static inline struct net_bridge_port * 7884d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 7894d4fd361SPetr Machata { 7904d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 7914d4fd361SPetr Machata } 7924d4fd361SPetr Machata 7931da177e4SLinus Torvalds /* br_ioctl.c */ 794348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 795348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 796348662a1SJoe Perches void __user *arg); 7971da177e4SLinus Torvalds 798eb1d1641SHerbert Xu /* br_multicast.c */ 799eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 800348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 801fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 802348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 803eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 8041080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 805348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 806348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 807348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 808348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 809348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 810348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 811e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 81237b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 81337b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 814348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 815348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 816348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 817348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 818348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 8195e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 820aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 821aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 822aa2ae3e7SNikolay Aleksandrov #endif 823348662a1SJoe Perches struct net_bridge_mdb_entry * 82419e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 825348662a1SJoe Perches struct net_bridge_mdb_entry * 82619e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 827348662a1SJoe Perches struct net_bridge_port_group * 828348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 829762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 8308b671779SNikolay Aleksandrov unsigned char flags, const unsigned char *src, 8318f8cb77eSNikolay Aleksandrov u8 filter_mode, u8 rt_protocol); 83219e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 83319e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 83481f19838SNikolay Aleksandrov void br_mdb_notify(struct net_device *dev, struct net_bridge_mdb_entry *mp, 83581f19838SNikolay Aleksandrov struct net_bridge_port_group *pg, int type); 836949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 837949f1e39SSatish Ashok int type); 838681590bdSNikolay Aleksandrov void br_multicast_del_pg(struct net_bridge_mdb_entry *mp, 839681590bdSNikolay Aleksandrov struct net_bridge_port_group *pg, 840681590bdSNikolay Aleksandrov struct net_bridge_port_group __rcu **pp); 8411080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 842a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 8431080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 844b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 8451080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 8461080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 8471080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 84819e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 84919e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 8501bc844eeSNikolay Aleksandrov void br_multicast_host_join(struct net_bridge_mdb_entry *mp, bool notify); 8511bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 8528266a049SNikolay Aleksandrov void br_multicast_star_g_handle_mode(struct net_bridge_port_group *pg, 8538266a049SNikolay Aleksandrov u8 filter_mode); 8548266a049SNikolay Aleksandrov void br_multicast_sg_add_exclude_ports(struct net_bridge_mdb_entry *star_mp, 8558266a049SNikolay Aleksandrov struct net_bridge_port_group *sg); 85685b35269SSridhar Samudrala 857cfd56754SCong Wang #define mlock_dereference(X, br) \ 858cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 859cfd56754SCong Wang 86085b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 86185b35269SSridhar Samudrala { 86285b35269SSridhar Samudrala return br->multicast_router == 2 || 86385b35269SSridhar Samudrala (br->multicast_router == 1 && 86485b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 86585b35269SSridhar Samudrala } 866b00589afSLinus Lüssing 867cc0fdd80SLinus Lüssing static inline bool 868cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 8690888d5f3Sdaniel struct bridge_mcast_other_query *querier, 8700888d5f3Sdaniel const bool is_ipv6) 871b00589afSLinus Lüssing { 8720888d5f3Sdaniel bool own_querier_enabled; 8730888d5f3Sdaniel 874675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 875675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 8760888d5f3Sdaniel own_querier_enabled = false; 8770888d5f3Sdaniel else 8780888d5f3Sdaniel own_querier_enabled = true; 8790888d5f3Sdaniel } else { 8800888d5f3Sdaniel own_querier_enabled = false; 8810888d5f3Sdaniel } 8820888d5f3Sdaniel 883cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 8840888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 885cc0fdd80SLinus Lüssing } 886cc0fdd80SLinus Lüssing 887cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 888cc0fdd80SLinus Lüssing struct ethhdr *eth) 889cc0fdd80SLinus Lüssing { 890cc0fdd80SLinus Lüssing switch (eth->h_proto) { 891cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 8920888d5f3Sdaniel return __br_multicast_querier_exists(br, 8930888d5f3Sdaniel &br->ip4_other_query, false); 894cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 895cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 8960888d5f3Sdaniel return __br_multicast_querier_exists(br, 8970888d5f3Sdaniel &br->ip6_other_query, true); 898cc0fdd80SLinus Lüssing #endif 899cc0fdd80SLinus Lüssing default: 900cc0fdd80SLinus Lüssing return false; 901cc0fdd80SLinus Lüssing } 902b00589afSLinus Lüssing } 9031080ab95SNikolay Aleksandrov 90488d4bd18SNikolay Aleksandrov static inline bool br_multicast_is_star_g(const struct br_ip *ip) 90588d4bd18SNikolay Aleksandrov { 90688d4bd18SNikolay Aleksandrov switch (ip->proto) { 90788d4bd18SNikolay Aleksandrov case htons(ETH_P_IP): 90888d4bd18SNikolay Aleksandrov return ipv4_is_zeronet(ip->src.ip4); 90988d4bd18SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 91088d4bd18SNikolay Aleksandrov case htons(ETH_P_IPV6): 91188d4bd18SNikolay Aleksandrov return ipv6_addr_any(&ip->src.ip6); 91288d4bd18SNikolay Aleksandrov #endif 91388d4bd18SNikolay Aleksandrov default: 91488d4bd18SNikolay Aleksandrov return false; 91588d4bd18SNikolay Aleksandrov } 91688d4bd18SNikolay Aleksandrov } 91788d4bd18SNikolay Aleksandrov 9188266a049SNikolay Aleksandrov static inline bool br_multicast_should_handle_mode(const struct net_bridge *br, 9198266a049SNikolay Aleksandrov __be16 proto) 9208266a049SNikolay Aleksandrov { 9218266a049SNikolay Aleksandrov switch (proto) { 9228266a049SNikolay Aleksandrov case htons(ETH_P_IP): 9238266a049SNikolay Aleksandrov return !!(br->multicast_igmp_version == 3); 9248266a049SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 9258266a049SNikolay Aleksandrov case htons(ETH_P_IPV6): 9268266a049SNikolay Aleksandrov return !!(br->multicast_mld_version == 2); 9278266a049SNikolay Aleksandrov #endif 9288266a049SNikolay Aleksandrov default: 9298266a049SNikolay Aleksandrov return false; 9308266a049SNikolay Aleksandrov } 9318266a049SNikolay Aleksandrov } 9328266a049SNikolay Aleksandrov 9331080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 9341080ab95SNikolay Aleksandrov { 9351080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 9361080ab95SNikolay Aleksandrov } 93742c11ccfSNikolay Aleksandrov 93842c11ccfSNikolay Aleksandrov static inline unsigned long br_multicast_lmqt(const struct net_bridge *br) 93942c11ccfSNikolay Aleksandrov { 94042c11ccfSNikolay Aleksandrov return br->multicast_last_member_interval * 94142c11ccfSNikolay Aleksandrov br->multicast_last_member_count; 94242c11ccfSNikolay Aleksandrov } 9430436862eSNikolay Aleksandrov 9440436862eSNikolay Aleksandrov static inline unsigned long br_multicast_gmi(const struct net_bridge *br) 9450436862eSNikolay Aleksandrov { 9460436862eSNikolay Aleksandrov /* use the RFC default of 2 for QRV */ 9470436862eSNikolay Aleksandrov return 2 * br->multicast_query_interval + 9480436862eSNikolay Aleksandrov br->multicast_query_response_interval; 9490436862eSNikolay Aleksandrov } 950eb1d1641SHerbert Xu #else 951eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 952eb1d1641SHerbert Xu struct net_bridge_port *port, 95306499098SVlad Yasevich struct sk_buff *skb, 95406499098SVlad Yasevich u16 vid) 955eb1d1641SHerbert Xu { 956eb1d1641SHerbert Xu return 0; 957eb1d1641SHerbert Xu } 958eb1d1641SHerbert Xu 959eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 960fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 961eb1d1641SHerbert Xu { 962eb1d1641SHerbert Xu return NULL; 963eb1d1641SHerbert Xu } 964eb1d1641SHerbert Xu 9651080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 966eb1d1641SHerbert Xu { 9671080ab95SNikolay Aleksandrov return 0; 968eb1d1641SHerbert Xu } 969eb1d1641SHerbert Xu 970eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 971eb1d1641SHerbert Xu { 972eb1d1641SHerbert Xu } 973eb1d1641SHerbert Xu 974eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 975eb1d1641SHerbert Xu { 976eb1d1641SHerbert Xu } 977eb1d1641SHerbert Xu 978eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 979eb1d1641SHerbert Xu { 980eb1d1641SHerbert Xu } 981eb1d1641SHerbert Xu 982eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 983eb1d1641SHerbert Xu { 984eb1d1641SHerbert Xu } 985eb1d1641SHerbert Xu 986eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 987eb1d1641SHerbert Xu { 988eb1d1641SHerbert Xu } 989eb1d1641SHerbert Xu 990eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 991eb1d1641SHerbert Xu { 992eb1d1641SHerbert Xu } 9935cb5e947SHerbert Xu 994a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 995a7ce45a7SNikolay Aleksandrov { 996a7ce45a7SNikolay Aleksandrov } 997a7ce45a7SNikolay Aleksandrov 99837b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 99937b090e6SNikolay Aleksandrov struct sk_buff *skb, 100037b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 10015cb5e947SHerbert Xu { 10025cb5e947SHerbert Xu } 10035cb5e947SHerbert Xu 1004eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 1005eb1d1641SHerbert Xu { 100603aaa9e2SGustavo A. R. Silva return false; 1007eb1d1641SHerbert Xu } 100837b090e6SNikolay Aleksandrov 1009cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 1010cc0fdd80SLinus Lüssing struct ethhdr *eth) 1011b00589afSLinus Lüssing { 1012b00589afSLinus Lüssing return false; 1013b00589afSLinus Lüssing } 101437b090e6SNikolay Aleksandrov 1015fdb184d1SRami Rosen static inline void br_mdb_init(void) 1016fdb184d1SRami Rosen { 1017fdb184d1SRami Rosen } 101837b090e6SNikolay Aleksandrov 1019fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 1020fdb184d1SRami Rosen { 1021fdb184d1SRami Rosen } 10221080ab95SNikolay Aleksandrov 102319e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 102419e3a9c9SNikolay Aleksandrov { 102519e3a9c9SNikolay Aleksandrov return 0; 102619e3a9c9SNikolay Aleksandrov } 102719e3a9c9SNikolay Aleksandrov 102819e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 102919e3a9c9SNikolay Aleksandrov { 103019e3a9c9SNikolay Aleksandrov } 103119e3a9c9SNikolay Aleksandrov 10321080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 10331080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 1034a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 1035a65056ecSNikolay Aleksandrov u8 type, u8 dir) 10361080ab95SNikolay Aleksandrov { 10371080ab95SNikolay Aleksandrov } 10381080ab95SNikolay Aleksandrov 10391080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 10401080ab95SNikolay Aleksandrov { 10411080ab95SNikolay Aleksandrov return 0; 10421080ab95SNikolay Aleksandrov } 10431080ab95SNikolay Aleksandrov 1044b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 1045b6fe0440SIdo Schimmel { 1046b6fe0440SIdo Schimmel } 1047b6fe0440SIdo Schimmel 10481080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 10491080ab95SNikolay Aleksandrov { 10501080ab95SNikolay Aleksandrov return 0; 10511080ab95SNikolay Aleksandrov } 105285b35269SSridhar Samudrala #endif 1053eb1d1641SHerbert Xu 1054243a2e63SVlad Yasevich /* br_vlan.c */ 1055243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 105677751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 105777751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 1058a580c76dSNikolay Aleksandrov u16 *vid, u8 *state); 105977751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 106085f46c6bSVlad Yasevich const struct sk_buff *skb); 1061e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 1062348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 106311538d03SRoopa Prabhu const struct net_bridge_port *port, 10642594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 106578851988SVlad Yasevich struct sk_buff *skb); 1066f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1067169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1068348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 1069348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 10702594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 1071204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 1072a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 1073348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 1074d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 1075204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 10766dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 10779163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 10785be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 107996a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 1080169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 1081169327d5SPetr Machata struct netlink_ext_ack *extack); 1082f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1083169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1084348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 1085348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 1086169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 10872594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 1088a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 1089a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 10909c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 1091091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 10929c0ec2e7SMike Manning void *ptr); 10938dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void); 10948dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void); 1095cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 1096cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1097cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1098cf5bddb9SNikolay Aleksandrov int cmd); 1099a5d29ae2SNikolay Aleksandrov bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1100a5d29ae2SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 1101a37b85c9SVlad Yasevich 11022594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 1103a37b85c9SVlad Yasevich const struct net_bridge *br) 1104a37b85c9SVlad Yasevich { 1105907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 1106a37b85c9SVlad Yasevich } 1107a37b85c9SVlad Yasevich 11082594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 1109a37b85c9SVlad Yasevich const struct net_bridge_port *p) 1110a37b85c9SVlad Yasevich { 1111907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 1112907b1e6eSNikolay Aleksandrov } 1113907b1e6eSNikolay Aleksandrov 1114907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1115907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1116907b1e6eSNikolay Aleksandrov { 1117907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 1118907b1e6eSNikolay Aleksandrov } 1119907b1e6eSNikolay Aleksandrov 1120907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1121907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1122907b1e6eSNikolay Aleksandrov { 1123907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 1124a37b85c9SVlad Yasevich } 1125a37b85c9SVlad Yasevich 1126a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 1127a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 1128a37b85c9SVlad Yasevich */ 1129a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 1130a37b85c9SVlad Yasevich { 1131a37b85c9SVlad Yasevich int err = 0; 1132a37b85c9SVlad Yasevich 11332594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 11345978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 11352594e906SNikolay Aleksandrov } else { 1136a37b85c9SVlad Yasevich *vid = 0; 1137a37b85c9SVlad Yasevich err = -EINVAL; 1138a37b85c9SVlad Yasevich } 1139a37b85c9SVlad Yasevich 1140a37b85c9SVlad Yasevich return err; 1141a37b85c9SVlad Yasevich } 114278851988SVlad Yasevich 114377751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 114478851988SVlad Yasevich { 114577751ee8SNikolay Aleksandrov if (!vg) 11465be5a2dfSVlad Yasevich return 0; 11475be5a2dfSVlad Yasevich 114878851988SVlad Yasevich smp_rmb(); 114977751ee8SNikolay Aleksandrov return vg->pvid; 115078851988SVlad Yasevich } 115178851988SVlad Yasevich 11528dcea187SNikolay Aleksandrov static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) 11538dcea187SNikolay Aleksandrov { 11548dcea187SNikolay Aleksandrov return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags; 11558dcea187SNikolay Aleksandrov } 1156243a2e63SVlad Yasevich #else 115777751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 115877751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 11592594e906SNikolay Aleksandrov struct sk_buff *skb, 1160a580c76dSNikolay Aleksandrov u16 *vid, u8 *state) 11612594e906SNikolay Aleksandrov { 11622594e906SNikolay Aleksandrov return true; 11632594e906SNikolay Aleksandrov } 11642594e906SNikolay Aleksandrov 11652594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 116685f46c6bSVlad Yasevich const struct sk_buff *skb) 116785f46c6bSVlad Yasevich { 116885f46c6bSVlad Yasevich return true; 116985f46c6bSVlad Yasevich } 117085f46c6bSVlad Yasevich 1171e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 1172e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 1173e0d7968aSToshiaki Makita { 1174e0d7968aSToshiaki Makita return true; 1175e0d7968aSToshiaki Makita } 1176e0d7968aSToshiaki Makita 117778851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 117811538d03SRoopa Prabhu const struct net_bridge_port *port, 11792594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 118078851988SVlad Yasevich struct sk_buff *skb) 118178851988SVlad Yasevich { 118278851988SVlad Yasevich return skb; 118378851988SVlad Yasevich } 118478851988SVlad Yasevich 1185f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1186169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1187243a2e63SVlad Yasevich { 1188f418af63SNikolay Aleksandrov *changed = false; 1189243a2e63SVlad Yasevich return -EOPNOTSUPP; 1190243a2e63SVlad Yasevich } 1191243a2e63SVlad Yasevich 1192243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 1193243a2e63SVlad Yasevich { 1194243a2e63SVlad Yasevich return -EOPNOTSUPP; 1195243a2e63SVlad Yasevich } 1196243a2e63SVlad Yasevich 1197243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1198243a2e63SVlad Yasevich { 1199243a2e63SVlad Yasevich } 1200243a2e63SVlad Yasevich 1201204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1202204177f3SToshiaki Makita { 1203204177f3SToshiaki Makita } 1204204177f3SToshiaki Makita 12055be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 12068580e211SToshiaki Makita { 12075be5a2dfSVlad Yasevich return 0; 12088580e211SToshiaki Makita } 12098580e211SToshiaki Makita 1210f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1211169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1212243a2e63SVlad Yasevich { 1213f418af63SNikolay Aleksandrov *changed = false; 1214243a2e63SVlad Yasevich return -EOPNOTSUPP; 1215243a2e63SVlad Yasevich } 1216243a2e63SVlad Yasevich 1217243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1218243a2e63SVlad Yasevich { 1219243a2e63SVlad Yasevich return -EOPNOTSUPP; 1220243a2e63SVlad Yasevich } 1221243a2e63SVlad Yasevich 1222243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1223243a2e63SVlad Yasevich { 1224243a2e63SVlad Yasevich } 1225243a2e63SVlad Yasevich 12262594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 12272594e906SNikolay Aleksandrov u16 vid) 1228a37b85c9SVlad Yasevich { 1229a37b85c9SVlad Yasevich return NULL; 1230a37b85c9SVlad Yasevich } 1231bc9a25d2SVlad Yasevich 1232169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1233169327d5SPetr Machata struct netlink_ext_ack *extack) 12345be5a2dfSVlad Yasevich { 12355be5a2dfSVlad Yasevich return 0; 12365be5a2dfSVlad Yasevich } 12375be5a2dfSVlad Yasevich 123878851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1239a37b85c9SVlad Yasevich { 1240a37b85c9SVlad Yasevich return 0; 1241a37b85c9SVlad Yasevich } 12422594e906SNikolay Aleksandrov 124377751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 124478851988SVlad Yasevich { 12453df6bf45SVlad Yasevich return 0; 124678851988SVlad Yasevich } 12472796d0c6SVlad Yasevich 1248a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1249a7854037SNikolay Aleksandrov unsigned long val) 1250a7854037SNikolay Aleksandrov { 1251a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1252a7854037SNikolay Aleksandrov } 12532594e906SNikolay Aleksandrov 12542594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 12552594e906SNikolay Aleksandrov u32 filter_mask) 12562594e906SNikolay Aleksandrov { 12572594e906SNikolay Aleksandrov return 0; 12582594e906SNikolay Aleksandrov } 12592594e906SNikolay Aleksandrov 12602594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 12612594e906SNikolay Aleksandrov const struct net_bridge *br) 12622594e906SNikolay Aleksandrov { 12632594e906SNikolay Aleksandrov return NULL; 12642594e906SNikolay Aleksandrov } 12652594e906SNikolay Aleksandrov 12662594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 12672594e906SNikolay Aleksandrov const struct net_bridge_port *p) 12682594e906SNikolay Aleksandrov { 12692594e906SNikolay Aleksandrov return NULL; 12702594e906SNikolay Aleksandrov } 1271907b1e6eSNikolay Aleksandrov 1272907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1273907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1274907b1e6eSNikolay Aleksandrov { 1275907b1e6eSNikolay Aleksandrov return NULL; 1276907b1e6eSNikolay Aleksandrov } 1277907b1e6eSNikolay Aleksandrov 1278907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1279907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1280907b1e6eSNikolay Aleksandrov { 1281907b1e6eSNikolay Aleksandrov return NULL; 1282907b1e6eSNikolay Aleksandrov } 1283a60c0903SNikolay Aleksandrov 1284a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1285a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1286a60c0903SNikolay Aleksandrov { 1287a60c0903SNikolay Aleksandrov } 12889c0ec2e7SMike Manning 12899c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 12909c0ec2e7SMike Manning unsigned long event) 12919c0ec2e7SMike Manning { 12929c0ec2e7SMike Manning } 12939c0ec2e7SMike Manning 1294091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 12959c0ec2e7SMike Manning unsigned long event, void *ptr) 12969c0ec2e7SMike Manning { 1297091adf9bSNikolay Aleksandrov return 0; 12989c0ec2e7SMike Manning } 12998dcea187SNikolay Aleksandrov 13008dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_init(void) 13018dcea187SNikolay Aleksandrov { 13028dcea187SNikolay Aleksandrov } 13038dcea187SNikolay Aleksandrov 13048dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_uninit(void) 13058dcea187SNikolay Aleksandrov { 13068dcea187SNikolay Aleksandrov } 1307cf5bddb9SNikolay Aleksandrov 1308cf5bddb9SNikolay Aleksandrov static inline void br_vlan_notify(const struct net_bridge *br, 1309cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1310cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1311cf5bddb9SNikolay Aleksandrov int cmd) 1312cf5bddb9SNikolay Aleksandrov { 1313cf5bddb9SNikolay Aleksandrov } 1314528ae84aSNikolay Aleksandrov 1315528ae84aSNikolay Aleksandrov static inline bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1316528ae84aSNikolay Aleksandrov const struct net_bridge_vlan *range_end) 1317528ae84aSNikolay Aleksandrov { 1318528ae84aSNikolay Aleksandrov return true; 1319528ae84aSNikolay Aleksandrov } 1320243a2e63SVlad Yasevich #endif 1321243a2e63SVlad Yasevich 13227a53e718SNikolay Aleksandrov /* br_vlan_options.c */ 13237a53e718SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 132499f7c5e0SNikolay Aleksandrov bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, 132599f7c5e0SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 13267a53e718SNikolay Aleksandrov bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v); 13277a53e718SNikolay Aleksandrov size_t br_vlan_opts_nl_size(void); 1328a5d29ae2SNikolay Aleksandrov int br_vlan_process_options(const struct net_bridge *br, 1329a5d29ae2SNikolay Aleksandrov const struct net_bridge_port *p, 1330a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_start, 1331a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_end, 1332a5d29ae2SNikolay Aleksandrov struct nlattr **tb, 1333a5d29ae2SNikolay Aleksandrov struct netlink_ext_ack *extack); 1334a580c76dSNikolay Aleksandrov 1335a580c76dSNikolay Aleksandrov /* vlan state manipulation helpers using *_ONCE to annotate lock-free access */ 1336a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v) 1337a580c76dSNikolay Aleksandrov { 1338a580c76dSNikolay Aleksandrov return READ_ONCE(v->state); 1339a580c76dSNikolay Aleksandrov } 1340a580c76dSNikolay Aleksandrov 1341a580c76dSNikolay Aleksandrov static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state) 1342a580c76dSNikolay Aleksandrov { 1343a580c76dSNikolay Aleksandrov WRITE_ONCE(v->state, state); 1344a580c76dSNikolay Aleksandrov } 1345a580c76dSNikolay Aleksandrov 1346a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg) 1347a580c76dSNikolay Aleksandrov { 1348a580c76dSNikolay Aleksandrov return READ_ONCE(vg->pvid_state); 1349a580c76dSNikolay Aleksandrov } 1350a580c76dSNikolay Aleksandrov 1351a580c76dSNikolay Aleksandrov static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg, 1352a580c76dSNikolay Aleksandrov u8 state) 1353a580c76dSNikolay Aleksandrov { 1354a580c76dSNikolay Aleksandrov WRITE_ONCE(vg->pvid_state, state); 1355a580c76dSNikolay Aleksandrov } 1356a580c76dSNikolay Aleksandrov 1357a580c76dSNikolay Aleksandrov /* learn_allow is true at ingress and false at egress */ 1358a580c76dSNikolay Aleksandrov static inline bool br_vlan_state_allowed(u8 state, bool learn_allow) 1359a580c76dSNikolay Aleksandrov { 1360a580c76dSNikolay Aleksandrov switch (state) { 1361a580c76dSNikolay Aleksandrov case BR_STATE_LEARNING: 1362a580c76dSNikolay Aleksandrov return learn_allow; 1363a580c76dSNikolay Aleksandrov case BR_STATE_FORWARDING: 1364a580c76dSNikolay Aleksandrov return true; 1365a580c76dSNikolay Aleksandrov default: 1366a580c76dSNikolay Aleksandrov return false; 1367a580c76dSNikolay Aleksandrov } 1368a580c76dSNikolay Aleksandrov } 13697a53e718SNikolay Aleksandrov #endif 13707a53e718SNikolay Aleksandrov 13711a4ba64dSPablo Neira Ayuso struct nf_br_ops { 13721a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 13731a4ba64dSPablo Neira Ayuso }; 13741a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 13751a4ba64dSPablo Neira Ayuso 13761da177e4SLinus Torvalds /* br_netfilter.c */ 137734666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 137834666d46SPablo Neira Ayuso int br_nf_core_init(void); 137934666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1380348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1381c0909713SStephen Hemminger #else 138234666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 138334666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 13844adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1385c0909713SStephen Hemminger #endif 13861da177e4SLinus Torvalds 13871da177e4SLinus Torvalds /* br_stp.c */ 1388775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1389348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1390348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1391348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 13921da177e4SLinus Torvalds 1393348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1394348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1395348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1396348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 139782dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 13989e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 139914f98f25Sstephen hemminger 140014f98f25Sstephen hemminger 14011da177e4SLinus Torvalds /* br_stp_if.c */ 1402348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1403348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1404419dba8aSHoratiu Vultur int br_stp_set_enabled(struct net_bridge *br, unsigned long val, 1405419dba8aSHoratiu Vultur struct netlink_ext_ack *extack); 1406348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1407348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1408348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1409348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1410348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1411348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1412348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1413348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 14141da177e4SLinus Torvalds 14151da177e4SLinus Torvalds /* br_stp_bpdu.c */ 14167c85fbf0SPatrick McHardy struct stp_proto; 1417348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 14187c85fbf0SPatrick McHardy struct net_device *dev); 14191da177e4SLinus Torvalds 14201da177e4SLinus Torvalds /* br_stp_timer.c */ 1421348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1422348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1423348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 14241da177e4SLinus Torvalds 14251da177e4SLinus Torvalds /* br.c */ 1426e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1427da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1428da678292SMichał Mirosław #endif 14291da177e4SLinus Torvalds 143065369933SHoratiu Vultur /* br_mrp.c */ 143165369933SHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 143265369933SHoratiu Vultur int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 143365369933SHoratiu Vultur struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 143465369933SHoratiu Vultur bool br_mrp_enabled(struct net_bridge *br); 143565369933SHoratiu Vultur void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p); 1436df42ef22SHoratiu Vultur int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br); 143765369933SHoratiu Vultur #else 143865369933SHoratiu Vultur static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 143965369933SHoratiu Vultur struct nlattr *attr, int cmd, 144065369933SHoratiu Vultur struct netlink_ext_ack *extack) 144165369933SHoratiu Vultur { 144265369933SHoratiu Vultur return -EOPNOTSUPP; 144365369933SHoratiu Vultur } 144465369933SHoratiu Vultur 144565369933SHoratiu Vultur static inline bool br_mrp_enabled(struct net_bridge *br) 144665369933SHoratiu Vultur { 14478741e184SJason Yan return false; 144865369933SHoratiu Vultur } 144965369933SHoratiu Vultur 145065369933SHoratiu Vultur static inline void br_mrp_port_del(struct net_bridge *br, 145165369933SHoratiu Vultur struct net_bridge_port *p) 145265369933SHoratiu Vultur { 145365369933SHoratiu Vultur } 1454df42ef22SHoratiu Vultur 1455df42ef22SHoratiu Vultur static inline int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br) 1456df42ef22SHoratiu Vultur { 1457df42ef22SHoratiu Vultur return 0; 1458df42ef22SHoratiu Vultur } 1459df42ef22SHoratiu Vultur 146065369933SHoratiu Vultur #endif 146165369933SHoratiu Vultur 14622be665c3SHenrik Bjoernlund /* br_cfm.c */ 146386a14b79SHenrik Bjoernlund #if IS_ENABLED(CONFIG_BRIDGE_CFM) 14642be665c3SHenrik Bjoernlund int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p, 14652be665c3SHenrik Bjoernlund struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 14662be665c3SHenrik Bjoernlund bool br_cfm_created(struct net_bridge *br); 146786a14b79SHenrik Bjoernlund void br_cfm_port_del(struct net_bridge *br, struct net_bridge_port *p); 1468*5e312fc0SHenrik Bjoernlund int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br); 146986a14b79SHenrik Bjoernlund #else 14702be665c3SHenrik Bjoernlund static inline int br_cfm_parse(struct net_bridge *br, struct net_bridge_port *p, 14712be665c3SHenrik Bjoernlund struct nlattr *attr, int cmd, 14722be665c3SHenrik Bjoernlund struct netlink_ext_ack *extack) 14732be665c3SHenrik Bjoernlund { 14742be665c3SHenrik Bjoernlund return -EOPNOTSUPP; 14752be665c3SHenrik Bjoernlund } 14762be665c3SHenrik Bjoernlund 14772be665c3SHenrik Bjoernlund static inline bool br_cfm_created(struct net_bridge *br) 14782be665c3SHenrik Bjoernlund { 14792be665c3SHenrik Bjoernlund return false; 14802be665c3SHenrik Bjoernlund } 14812be665c3SHenrik Bjoernlund 148286a14b79SHenrik Bjoernlund static inline void br_cfm_port_del(struct net_bridge *br, 148386a14b79SHenrik Bjoernlund struct net_bridge_port *p) 148486a14b79SHenrik Bjoernlund { 148586a14b79SHenrik Bjoernlund } 1486*5e312fc0SHenrik Bjoernlund 1487*5e312fc0SHenrik Bjoernlund static inline int br_cfm_config_fill_info(struct sk_buff *skb, struct net_bridge *br) 1488*5e312fc0SHenrik Bjoernlund { 1489*5e312fc0SHenrik Bjoernlund return -EOPNOTSUPP; 1490*5e312fc0SHenrik Bjoernlund } 149186a14b79SHenrik Bjoernlund #endif 149286a14b79SHenrik Bjoernlund 149311dc1f36SStephen Hemminger /* br_netlink.c */ 1494149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1495348662a1SJoe Perches int br_netlink_init(void); 1496348662a1SJoe Perches void br_netlink_fini(void); 149792899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 149892899063SNikolay Aleksandrov const struct net_bridge_port *port); 14992fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 15002fd527b7SPetr Machata struct netlink_ext_ack *extack); 1501add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1502348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 150346c264daSNicolas Dichtel u32 filter_mask, int nlflags); 1504f26b2965SNikolay Aleksandrov int br_process_vlan_info(struct net_bridge *br, 1505f26b2965SNikolay Aleksandrov struct net_bridge_port *p, int cmd, 1506f26b2965SNikolay Aleksandrov struct bridge_vlan_info *vinfo_curr, 1507f26b2965SNikolay Aleksandrov struct bridge_vlan_info **vinfo_last, 1508f26b2965SNikolay Aleksandrov bool *changed, 1509f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack); 151011dc1f36SStephen Hemminger 15111da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 15121da177e4SLinus Torvalds /* br_sysfs_if.c */ 151352cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1514348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1515348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 15161da177e4SLinus Torvalds 15171da177e4SLinus Torvalds /* br_sysfs_br.c */ 1518348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1519348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 15201da177e4SLinus Torvalds 15211da177e4SLinus Torvalds #else 15221da177e4SLinus Torvalds 15230cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 15240cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 15250cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 15260cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 15271da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 15281da177e4SLinus Torvalds 15296bc506b4SIdo Schimmel /* br_switchdev.c */ 15306bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 15316bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 15326bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 15336bc506b4SIdo Schimmel struct sk_buff *skb); 15346bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 15356bc506b4SIdo Schimmel const struct sk_buff *skb); 15363922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 15373922285dSArkadi Sharshevsky unsigned long flags, 15383922285dSArkadi Sharshevsky unsigned long mask); 15396b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 15406b26b51bSArkadi Sharshevsky int type); 1541169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1542169327d5SPetr Machata struct netlink_ext_ack *extack); 1543d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1544f1c2eddfSIdo Schimmel 1545f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1546f1c2eddfSIdo Schimmel { 1547f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1548f1c2eddfSIdo Schimmel } 15496bc506b4SIdo Schimmel #else 15506bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 15516bc506b4SIdo Schimmel { 15526bc506b4SIdo Schimmel return 0; 15536bc506b4SIdo Schimmel } 15546bc506b4SIdo Schimmel 15556bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 15566bc506b4SIdo Schimmel struct sk_buff *skb) 15576bc506b4SIdo Schimmel { 15586bc506b4SIdo Schimmel } 15596bc506b4SIdo Schimmel 15606bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 15616bc506b4SIdo Schimmel const struct sk_buff *skb) 15626bc506b4SIdo Schimmel { 15636bc506b4SIdo Schimmel return true; 15646bc506b4SIdo Schimmel } 15653922285dSArkadi Sharshevsky 15663922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 15673922285dSArkadi Sharshevsky unsigned long flags, 15683922285dSArkadi Sharshevsky unsigned long mask) 15693922285dSArkadi Sharshevsky { 15703922285dSArkadi Sharshevsky return 0; 15713922285dSArkadi Sharshevsky } 15726b26b51bSArkadi Sharshevsky 1573d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1574169327d5SPetr Machata u16 vid, u16 flags, 1575169327d5SPetr Machata struct netlink_ext_ack *extack) 1576d66e4348SPetr Machata { 1577d66e4348SPetr Machata return -EOPNOTSUPP; 1578d66e4348SPetr Machata } 1579d66e4348SPetr Machata 1580d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1581d66e4348SPetr Machata { 1582d66e4348SPetr Machata return -EOPNOTSUPP; 1583d66e4348SPetr Machata } 1584d66e4348SPetr Machata 15856b26b51bSArkadi Sharshevsky static inline void 15866b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 15876b26b51bSArkadi Sharshevsky { 15886b26b51bSArkadi Sharshevsky } 1589f1c2eddfSIdo Schimmel 1590f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1591f1c2eddfSIdo Schimmel { 1592f1c2eddfSIdo Schimmel } 15936bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 15946bc506b4SIdo Schimmel 1595057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1596821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1597057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1598057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1599ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1600ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1601ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 16021da177e4SLinus Torvalds #endif 1603