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; 3861da177e4SLinus Torvalds struct list_head port_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; 39834666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 399efb6de9bSBernhard Thaler union { 4004adf0af6SSimon Wunderlich struct rtable fake_rtable; 401efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 402efb6de9bSBernhard Thaler }; 4034adf0af6SSimon Wunderlich #endif 404515853ccSstephen hemminger u16 group_fwd_mask; 405f2808d22SToshiaki Makita u16 group_fwd_mask_required; 406515853ccSstephen hemminger 4071da177e4SLinus Torvalds /* STP */ 4081da177e4SLinus Torvalds bridge_id designated_root; 4091da177e4SLinus Torvalds bridge_id bridge_id; 4101f90c7f3SNikolay Aleksandrov unsigned char topology_change; 4111f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 4121f90c7f3SNikolay Aleksandrov u16 root_port; 4131da177e4SLinus Torvalds unsigned long max_age; 4141da177e4SLinus Torvalds unsigned long hello_time; 4151da177e4SLinus Torvalds unsigned long forward_delay; 4161da177e4SLinus Torvalds unsigned long ageing_time; 41734d8acd8SVivien Didelot unsigned long bridge_max_age; 4181da177e4SLinus Torvalds unsigned long bridge_hello_time; 4191da177e4SLinus Torvalds unsigned long bridge_forward_delay; 42034d8acd8SVivien Didelot unsigned long bridge_ageing_time; 42135750b0bSNikolay Aleksandrov u32 root_path_cost; 4221da177e4SLinus Torvalds 423fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 4249cde0708SStephen Hemminger 4259cde0708SStephen Hemminger enum { 4269cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 4279cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 4289cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 4299cde0708SStephen Hemminger } stp_enabled; 4309cde0708SStephen Hemminger 431eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 432eb1d1641SHerbert Xu 433eb1d1641SHerbert Xu u32 hash_max; 434eb1d1641SHerbert Xu 435eb1d1641SHerbert Xu u32 multicast_last_member_count; 436eb1d1641SHerbert Xu u32 multicast_startup_query_count; 437eb1d1641SHerbert Xu 4385e923585SNikolay Aleksandrov u8 multicast_igmp_version; 439675779adSNikolay Aleksandrov u8 multicast_router; 440675779adSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 441675779adSNikolay Aleksandrov u8 multicast_mld_version; 442675779adSNikolay Aleksandrov #endif 44335750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 444eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 445eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 446eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 447eb1d1641SHerbert Xu unsigned long multicast_query_interval; 448eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 449eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 450eb1d1641SHerbert Xu 45119e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 452085b53c8SNikolay Aleksandrov struct rhashtable sg_port_tbl; 45319e3a9c9SNikolay Aleksandrov 454e12cec65SNikolay Aleksandrov struct hlist_head mcast_gc_list; 45519e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 456eb1d1641SHerbert Xu struct hlist_head router_list; 457eb1d1641SHerbert Xu 458eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 45990010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 46090010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 461dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 4621080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 463cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 46490010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 46590010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 466dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 467cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 468e12cec65SNikolay Aleksandrov struct work_struct mcast_gc_work; 469eb1d1641SHerbert Xu #endif 470eb1d1641SHerbert Xu 4711da177e4SLinus Torvalds struct timer_list hello_timer; 4721da177e4SLinus Torvalds struct timer_list tcn_timer; 4731da177e4SLinus Torvalds struct timer_list topology_change_timer; 474f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 47543b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 476e028e4b8SVlad Yasevich u32 auto_cnt; 4776bc506b4SIdo Schimmel 4786bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4796bc506b4SIdo Schimmel int offload_fwd_mark; 4806bc506b4SIdo Schimmel #endif 481eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4824b8d7d4cSHoratiu Vultur 4834b8d7d4cSHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 4849b14d1f8SHoratiu Vultur struct list_head mrp_list; 4854b8d7d4cSHoratiu Vultur #endif 4861da177e4SLinus Torvalds }; 4871da177e4SLinus Torvalds 48868b7c895SHerbert Xu struct br_input_skb_cb { 48968b7c895SHerbert Xu struct net_device *brdev; 49093fdd47eSHerbert Xu 4913c171f49SPablo Neira Ayuso u16 frag_max_size; 49232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 493f12064d1SFlorian Westphal u8 igmp; 494f12064d1SFlorian Westphal u8 mrouters_only:1; 49532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 496f12064d1SFlorian Westphal u8 proxyarp_replied:1; 497f12064d1SFlorian Westphal u8 src_port_isolated:1; 49820adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 499f12064d1SFlorian Westphal u8 vlan_filtered:1; 50020adfa1aSVlad Yasevich #endif 501223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 502223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 503223fd0adSFlorian Westphal #endif 5046bc506b4SIdo Schimmel 5056bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 5066bc506b4SIdo Schimmel int offload_fwd_mark; 5076bc506b4SIdo Schimmel #endif 50868b7c895SHerbert Xu }; 50968b7c895SHerbert Xu 51068b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 51168b7c895SHerbert Xu 51232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 51332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 51432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 51532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 51632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 51732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 51828a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 51928a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 52028a16c97Sstephen hemminger 52128a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 52228a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 52328a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 52428a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 52528a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 52628a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 52728a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 52828a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 52928a16c97Sstephen hemminger 53028a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 53128a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 53228a16c97Sstephen hemminger 5331da177e4SLinus Torvalds /* called under bridge lock */ 5341da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 5351da177e4SLinus Torvalds { 5361da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 5371da177e4SLinus Torvalds } 5381da177e4SLinus Torvalds 5392594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 5402594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 5412594e906SNikolay Aleksandrov { 5422594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 5432594e906SNikolay Aleksandrov } 5442594e906SNikolay Aleksandrov 5452594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 5462594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 5472594e906SNikolay Aleksandrov { 5482594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 5492594e906SNikolay Aleksandrov } 5502594e906SNikolay Aleksandrov 5516be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 5522594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 5532594e906SNikolay Aleksandrov { 5542594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 5552594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 5562594e906SNikolay Aleksandrov return true; 5572594e906SNikolay Aleksandrov else 5582594e906SNikolay Aleksandrov return false; 5592594e906SNikolay Aleksandrov } 5602594e906SNikolay Aleksandrov 5612594e906SNikolay Aleksandrov return true; 5622594e906SNikolay Aleksandrov } 5632594e906SNikolay Aleksandrov 5645d1fcaf3SNikolay Aleksandrov static inline bool nbp_state_should_learn(const struct net_bridge_port *p) 5655d1fcaf3SNikolay Aleksandrov { 5665d1fcaf3SNikolay Aleksandrov return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; 5675d1fcaf3SNikolay Aleksandrov } 5685d1fcaf3SNikolay Aleksandrov 5698f4cc940SNikolay Aleksandrov static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack) 5705a46facbSNikolay Aleksandrov { 5718f4cc940SNikolay Aleksandrov bool ret = vid > 0 && vid < VLAN_VID_MASK; 5728f4cc940SNikolay Aleksandrov 5738f4cc940SNikolay Aleksandrov if (!ret) 5748f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid"); 5758f4cc940SNikolay Aleksandrov 5768f4cc940SNikolay Aleksandrov return ret; 5775a46facbSNikolay Aleksandrov } 5785a46facbSNikolay Aleksandrov 5795a46facbSNikolay Aleksandrov static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, 5808f4cc940SNikolay Aleksandrov const struct bridge_vlan_info *last, 5818f4cc940SNikolay Aleksandrov struct netlink_ext_ack *extack) 5825a46facbSNikolay Aleksandrov { 5835a46facbSNikolay Aleksandrov /* pvid flag is not allowed in ranges */ 5848f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_PVID) { 5858f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range"); 5865a46facbSNikolay Aleksandrov return false; 5878f4cc940SNikolay Aleksandrov } 5885a46facbSNikolay Aleksandrov 5895a46facbSNikolay Aleksandrov /* when cur is the range end, check if: 5905a46facbSNikolay Aleksandrov * - it has range start flag 5915a46facbSNikolay Aleksandrov * - range ids are invalid (end is equal to or before start) 5925a46facbSNikolay Aleksandrov */ 5935a46facbSNikolay Aleksandrov if (last) { 5948f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { 5958f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one"); 5965a46facbSNikolay Aleksandrov return false; 5978f4cc940SNikolay Aleksandrov } else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) { 5988f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing"); 5998f4cc940SNikolay Aleksandrov return false; 6008f4cc940SNikolay Aleksandrov } else if (cur->vid <= last->vid) { 6018f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); 6028f4cc940SNikolay Aleksandrov return false; 6038f4cc940SNikolay Aleksandrov } 6048f4cc940SNikolay Aleksandrov } 6058f4cc940SNikolay Aleksandrov 6068f4cc940SNikolay Aleksandrov /* check for required range flags */ 6078f4cc940SNikolay Aleksandrov if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 6088f4cc940SNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END))) { 6098f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing"); 6105a46facbSNikolay Aleksandrov return false; 6115a46facbSNikolay Aleksandrov } 6125a46facbSNikolay Aleksandrov 6135a46facbSNikolay Aleksandrov return true; 6145a46facbSNikolay Aleksandrov } 6155a46facbSNikolay Aleksandrov 616f545923bSNikolay Aleksandrov static inline int br_afspec_cmd_to_rtm(int cmd) 617f545923bSNikolay Aleksandrov { 618f545923bSNikolay Aleksandrov switch (cmd) { 619f545923bSNikolay Aleksandrov case RTM_SETLINK: 620f545923bSNikolay Aleksandrov return RTM_NEWVLAN; 621f545923bSNikolay Aleksandrov case RTM_DELLINK: 622f545923bSNikolay Aleksandrov return RTM_DELVLAN; 623f545923bSNikolay Aleksandrov } 624f545923bSNikolay Aleksandrov 625f545923bSNikolay Aleksandrov return 0; 626f545923bSNikolay Aleksandrov } 627f545923bSNikolay Aleksandrov 628ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 629ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 630ae75767eSNikolay Aleksandrov { 631ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 632ae75767eSNikolay Aleksandrov } 633ae75767eSNikolay Aleksandrov 634a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 635a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 636a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 637a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 638a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 639a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 640a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 641a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 642ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 643ae75767eSNikolay Aleksandrov 6441da177e4SLinus Torvalds /* br_device.c */ 645348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 646348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 647348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 648cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 64991d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 65091d2c34aSHerbert Xu struct sk_buff *skb) 65191d2c34aSHerbert Xu { 652f78ed220SEric Dumazet netpoll_send_skb(p->np, skb); 65391d2c34aSHerbert Xu } 65491d2c34aSHerbert Xu 655a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 656348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 65791d2c34aSHerbert Xu #else 6589f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 65991d2c34aSHerbert Xu struct sk_buff *skb) 66091d2c34aSHerbert Xu { 66191d2c34aSHerbert Xu } 66291d2c34aSHerbert Xu 663a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 66491d2c34aSHerbert Xu { 66591d2c34aSHerbert Xu return 0; 66691d2c34aSHerbert Xu } 66791d2c34aSHerbert Xu 66891d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 66991d2c34aSHerbert Xu { 67091d2c34aSHerbert Xu } 671cfb478daSstephen hemminger #endif 6721da177e4SLinus Torvalds 6731da177e4SLinus Torvalds /* br_fdb.c */ 674348662a1SJoe Perches int br_fdb_init(void); 675348662a1SJoe Perches void br_fdb_fini(void); 676eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 677eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 678348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 679424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 680424bb9c9SToshiaki Makita const struct net_bridge_port *p, 681424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 682348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 683348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 684f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 685348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 6861ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 687bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 688bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 689bfd0aeacSNikolay Aleksandrov __u16 vid); 690348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 691348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 692348662a1SJoe Perches unsigned long off); 693348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 694348662a1SJoe Perches const unsigned char *addr, u16 vid); 695348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 696be0c5677SNikolay Aleksandrov const unsigned char *addr, u16 vid, unsigned long flags); 69777162022SJohn Fastabend 698348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 699f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 700348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 70187b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 70287b0984eSPetr Machata struct netlink_ext_ack *extack); 703348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 704d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 70547674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 70647674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 70747674562SRoopa Prabhu struct netlink_ext_ack *extack); 7088db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 7098db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 7103aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 711161d82deSPetr Machata const unsigned char *addr, u16 vid, 712161d82deSPetr Machata bool swdev_notify); 7133aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 714161d82deSPetr Machata const unsigned char *addr, u16 vid, 715161d82deSPetr Machata bool swdev_notify); 7169fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 717e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 7181da177e4SLinus Torvalds 7191da177e4SLinus Torvalds /* br_forward.c */ 7208addd5e7SNikolay Aleksandrov enum br_pkt_type { 7218addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 7228addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 7238addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 7248addd5e7SNikolay Aleksandrov }; 7250c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 726b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 72737b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 7280c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 72937b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 7308addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 7311da177e4SLinus Torvalds 7327d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 7337d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 7347d850abdSNikolay Aleksandrov const struct sk_buff *skb) 7357d850abdSNikolay Aleksandrov { 7367d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 7377d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 7387d850abdSNikolay Aleksandrov } 7397d850abdSNikolay Aleksandrov 7401da177e4SLinus Torvalds /* br_if.c */ 741faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 742348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 743348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 744ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 745ca752be0SDavid Ahern struct netlink_ext_ack *extack); 746348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 747804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 748348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 749c8f44affSMichał Mirosław netdev_features_t features); 750e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 7512796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 7522756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 7531da177e4SLinus Torvalds 7541da177e4SLinus Torvalds /* br_input.c */ 7550c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 7569eb8eff0SVladimir Oltean rx_handler_func_t *br_get_rx_handler(const struct net_device *dev); 7571da177e4SLinus Torvalds 758859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 759859828c0SJiri Pirko { 7609eb8eff0SVladimir Oltean return rcu_dereference(dev->rx_handler) == br_get_rx_handler(dev); 761859828c0SJiri Pirko } 762859828c0SJiri Pirko 7634d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 7644d4fd361SPetr Machata { 7659eb8eff0SVladimir Oltean return rcu_dereference_rtnl(dev->rx_handler) == br_get_rx_handler(dev); 7664d4fd361SPetr Machata } 7674d4fd361SPetr Machata 768859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 769859828c0SJiri Pirko { 770859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 771859828c0SJiri Pirko } 772859828c0SJiri Pirko 7734d4fd361SPetr Machata static inline struct net_bridge_port * 7744d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 7754d4fd361SPetr Machata { 7764d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 7774d4fd361SPetr Machata } 7784d4fd361SPetr Machata 7791da177e4SLinus Torvalds /* br_ioctl.c */ 780348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 781348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 782348662a1SJoe Perches void __user *arg); 7831da177e4SLinus Torvalds 784eb1d1641SHerbert Xu /* br_multicast.c */ 785eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 786348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 787fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 788348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 789eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 7901080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 791348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 792348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 793348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 794348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 795348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 796348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 797e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 79837b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 79937b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 800348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 801348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 802348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 803348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 804348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 8055e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 806aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 807aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 808aa2ae3e7SNikolay Aleksandrov #endif 809348662a1SJoe Perches struct net_bridge_mdb_entry * 81019e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 811348662a1SJoe Perches struct net_bridge_mdb_entry * 81219e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 813348662a1SJoe Perches struct net_bridge_port_group * 814348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 815762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 8168b671779SNikolay Aleksandrov unsigned char flags, const unsigned char *src, 8178f8cb77eSNikolay Aleksandrov u8 filter_mode, u8 rt_protocol); 81819e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 81919e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 82081f19838SNikolay Aleksandrov void br_mdb_notify(struct net_device *dev, struct net_bridge_mdb_entry *mp, 82181f19838SNikolay Aleksandrov struct net_bridge_port_group *pg, int type); 822949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 823949f1e39SSatish Ashok int type); 824681590bdSNikolay Aleksandrov void br_multicast_del_pg(struct net_bridge_mdb_entry *mp, 825681590bdSNikolay Aleksandrov struct net_bridge_port_group *pg, 826681590bdSNikolay Aleksandrov struct net_bridge_port_group __rcu **pp); 8271080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 828a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 8291080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 830b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 8311080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 8321080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 8331080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 83419e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 83519e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 8361bc844eeSNikolay Aleksandrov void br_multicast_host_join(struct net_bridge_mdb_entry *mp, bool notify); 8371bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 8388266a049SNikolay Aleksandrov void br_multicast_star_g_handle_mode(struct net_bridge_port_group *pg, 8398266a049SNikolay Aleksandrov u8 filter_mode); 8408266a049SNikolay Aleksandrov void br_multicast_sg_add_exclude_ports(struct net_bridge_mdb_entry *star_mp, 8418266a049SNikolay Aleksandrov struct net_bridge_port_group *sg); 84285b35269SSridhar Samudrala 843cfd56754SCong Wang #define mlock_dereference(X, br) \ 844cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 845cfd56754SCong Wang 84685b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 84785b35269SSridhar Samudrala { 84885b35269SSridhar Samudrala return br->multicast_router == 2 || 84985b35269SSridhar Samudrala (br->multicast_router == 1 && 85085b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 85185b35269SSridhar Samudrala } 852b00589afSLinus Lüssing 853cc0fdd80SLinus Lüssing static inline bool 854cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 8550888d5f3Sdaniel struct bridge_mcast_other_query *querier, 8560888d5f3Sdaniel const bool is_ipv6) 857b00589afSLinus Lüssing { 8580888d5f3Sdaniel bool own_querier_enabled; 8590888d5f3Sdaniel 860675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 861675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 8620888d5f3Sdaniel own_querier_enabled = false; 8630888d5f3Sdaniel else 8640888d5f3Sdaniel own_querier_enabled = true; 8650888d5f3Sdaniel } else { 8660888d5f3Sdaniel own_querier_enabled = false; 8670888d5f3Sdaniel } 8680888d5f3Sdaniel 869cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 8700888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 871cc0fdd80SLinus Lüssing } 872cc0fdd80SLinus Lüssing 873cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 874cc0fdd80SLinus Lüssing struct ethhdr *eth) 875cc0fdd80SLinus Lüssing { 876cc0fdd80SLinus Lüssing switch (eth->h_proto) { 877cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 8780888d5f3Sdaniel return __br_multicast_querier_exists(br, 8790888d5f3Sdaniel &br->ip4_other_query, false); 880cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 881cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 8820888d5f3Sdaniel return __br_multicast_querier_exists(br, 8830888d5f3Sdaniel &br->ip6_other_query, true); 884cc0fdd80SLinus Lüssing #endif 885cc0fdd80SLinus Lüssing default: 886cc0fdd80SLinus Lüssing return false; 887cc0fdd80SLinus Lüssing } 888b00589afSLinus Lüssing } 8891080ab95SNikolay Aleksandrov 89088d4bd18SNikolay Aleksandrov static inline bool br_multicast_is_star_g(const struct br_ip *ip) 89188d4bd18SNikolay Aleksandrov { 89288d4bd18SNikolay Aleksandrov switch (ip->proto) { 89388d4bd18SNikolay Aleksandrov case htons(ETH_P_IP): 89488d4bd18SNikolay Aleksandrov return ipv4_is_zeronet(ip->src.ip4); 89588d4bd18SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 89688d4bd18SNikolay Aleksandrov case htons(ETH_P_IPV6): 89788d4bd18SNikolay Aleksandrov return ipv6_addr_any(&ip->src.ip6); 89888d4bd18SNikolay Aleksandrov #endif 89988d4bd18SNikolay Aleksandrov default: 90088d4bd18SNikolay Aleksandrov return false; 90188d4bd18SNikolay Aleksandrov } 90288d4bd18SNikolay Aleksandrov } 90388d4bd18SNikolay Aleksandrov 9048266a049SNikolay Aleksandrov static inline bool br_multicast_should_handle_mode(const struct net_bridge *br, 9058266a049SNikolay Aleksandrov __be16 proto) 9068266a049SNikolay Aleksandrov { 9078266a049SNikolay Aleksandrov switch (proto) { 9088266a049SNikolay Aleksandrov case htons(ETH_P_IP): 9098266a049SNikolay Aleksandrov return !!(br->multicast_igmp_version == 3); 9108266a049SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 9118266a049SNikolay Aleksandrov case htons(ETH_P_IPV6): 9128266a049SNikolay Aleksandrov return !!(br->multicast_mld_version == 2); 9138266a049SNikolay Aleksandrov #endif 9148266a049SNikolay Aleksandrov default: 9158266a049SNikolay Aleksandrov return false; 9168266a049SNikolay Aleksandrov } 9178266a049SNikolay Aleksandrov } 9188266a049SNikolay Aleksandrov 9191080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 9201080ab95SNikolay Aleksandrov { 9211080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 9221080ab95SNikolay Aleksandrov } 92342c11ccfSNikolay Aleksandrov 92442c11ccfSNikolay Aleksandrov static inline unsigned long br_multicast_lmqt(const struct net_bridge *br) 92542c11ccfSNikolay Aleksandrov { 92642c11ccfSNikolay Aleksandrov return br->multicast_last_member_interval * 92742c11ccfSNikolay Aleksandrov br->multicast_last_member_count; 92842c11ccfSNikolay Aleksandrov } 9290436862eSNikolay Aleksandrov 9300436862eSNikolay Aleksandrov static inline unsigned long br_multicast_gmi(const struct net_bridge *br) 9310436862eSNikolay Aleksandrov { 9320436862eSNikolay Aleksandrov /* use the RFC default of 2 for QRV */ 9330436862eSNikolay Aleksandrov return 2 * br->multicast_query_interval + 9340436862eSNikolay Aleksandrov br->multicast_query_response_interval; 9350436862eSNikolay Aleksandrov } 936eb1d1641SHerbert Xu #else 937eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 938eb1d1641SHerbert Xu struct net_bridge_port *port, 93906499098SVlad Yasevich struct sk_buff *skb, 94006499098SVlad Yasevich u16 vid) 941eb1d1641SHerbert Xu { 942eb1d1641SHerbert Xu return 0; 943eb1d1641SHerbert Xu } 944eb1d1641SHerbert Xu 945eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 946fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 947eb1d1641SHerbert Xu { 948eb1d1641SHerbert Xu return NULL; 949eb1d1641SHerbert Xu } 950eb1d1641SHerbert Xu 9511080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 952eb1d1641SHerbert Xu { 9531080ab95SNikolay Aleksandrov return 0; 954eb1d1641SHerbert Xu } 955eb1d1641SHerbert Xu 956eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 957eb1d1641SHerbert Xu { 958eb1d1641SHerbert Xu } 959eb1d1641SHerbert Xu 960eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 961eb1d1641SHerbert Xu { 962eb1d1641SHerbert Xu } 963eb1d1641SHerbert Xu 964eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 965eb1d1641SHerbert Xu { 966eb1d1641SHerbert Xu } 967eb1d1641SHerbert Xu 968eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 969eb1d1641SHerbert Xu { 970eb1d1641SHerbert Xu } 971eb1d1641SHerbert Xu 972eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 973eb1d1641SHerbert Xu { 974eb1d1641SHerbert Xu } 975eb1d1641SHerbert Xu 976eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 977eb1d1641SHerbert Xu { 978eb1d1641SHerbert Xu } 9795cb5e947SHerbert Xu 980a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 981a7ce45a7SNikolay Aleksandrov { 982a7ce45a7SNikolay Aleksandrov } 983a7ce45a7SNikolay Aleksandrov 98437b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 98537b090e6SNikolay Aleksandrov struct sk_buff *skb, 98637b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 9875cb5e947SHerbert Xu { 9885cb5e947SHerbert Xu } 9895cb5e947SHerbert Xu 990eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 991eb1d1641SHerbert Xu { 99203aaa9e2SGustavo A. R. Silva return false; 993eb1d1641SHerbert Xu } 99437b090e6SNikolay Aleksandrov 995cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 996cc0fdd80SLinus Lüssing struct ethhdr *eth) 997b00589afSLinus Lüssing { 998b00589afSLinus Lüssing return false; 999b00589afSLinus Lüssing } 100037b090e6SNikolay Aleksandrov 1001fdb184d1SRami Rosen static inline void br_mdb_init(void) 1002fdb184d1SRami Rosen { 1003fdb184d1SRami Rosen } 100437b090e6SNikolay Aleksandrov 1005fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 1006fdb184d1SRami Rosen { 1007fdb184d1SRami Rosen } 10081080ab95SNikolay Aleksandrov 100919e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 101019e3a9c9SNikolay Aleksandrov { 101119e3a9c9SNikolay Aleksandrov return 0; 101219e3a9c9SNikolay Aleksandrov } 101319e3a9c9SNikolay Aleksandrov 101419e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 101519e3a9c9SNikolay Aleksandrov { 101619e3a9c9SNikolay Aleksandrov } 101719e3a9c9SNikolay Aleksandrov 10181080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 10191080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 1020a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 1021a65056ecSNikolay Aleksandrov u8 type, u8 dir) 10221080ab95SNikolay Aleksandrov { 10231080ab95SNikolay Aleksandrov } 10241080ab95SNikolay Aleksandrov 10251080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 10261080ab95SNikolay Aleksandrov { 10271080ab95SNikolay Aleksandrov return 0; 10281080ab95SNikolay Aleksandrov } 10291080ab95SNikolay Aleksandrov 1030b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 1031b6fe0440SIdo Schimmel { 1032b6fe0440SIdo Schimmel } 1033b6fe0440SIdo Schimmel 10341080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 10351080ab95SNikolay Aleksandrov { 10361080ab95SNikolay Aleksandrov return 0; 10371080ab95SNikolay Aleksandrov } 103885b35269SSridhar Samudrala #endif 1039eb1d1641SHerbert Xu 1040243a2e63SVlad Yasevich /* br_vlan.c */ 1041243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 104277751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 104377751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 1044a580c76dSNikolay Aleksandrov u16 *vid, u8 *state); 104577751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 104685f46c6bSVlad Yasevich const struct sk_buff *skb); 1047e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 1048348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 104911538d03SRoopa Prabhu const struct net_bridge_port *port, 10502594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 105178851988SVlad Yasevich struct sk_buff *skb); 1052f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1053169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1054348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 1055348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 10562594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 1057204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 1058a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 1059348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 1060d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 1061204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 10626dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 10639163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 10645be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 106596a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 1066169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 1067169327d5SPetr Machata struct netlink_ext_ack *extack); 1068f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1069169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1070348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 1071348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 1072169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 10732594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 1074a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 1075a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 10769c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 1077091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 10789c0ec2e7SMike Manning void *ptr); 10798dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void); 10808dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void); 1081cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 1082cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1083cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1084cf5bddb9SNikolay Aleksandrov int cmd); 1085a5d29ae2SNikolay Aleksandrov bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1086a5d29ae2SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 1087a37b85c9SVlad Yasevich 10882594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 1089a37b85c9SVlad Yasevich const struct net_bridge *br) 1090a37b85c9SVlad Yasevich { 1091907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 1092a37b85c9SVlad Yasevich } 1093a37b85c9SVlad Yasevich 10942594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 1095a37b85c9SVlad Yasevich const struct net_bridge_port *p) 1096a37b85c9SVlad Yasevich { 1097907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 1098907b1e6eSNikolay Aleksandrov } 1099907b1e6eSNikolay Aleksandrov 1100907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1101907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1102907b1e6eSNikolay Aleksandrov { 1103907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 1104907b1e6eSNikolay Aleksandrov } 1105907b1e6eSNikolay Aleksandrov 1106907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1107907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1108907b1e6eSNikolay Aleksandrov { 1109907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 1110a37b85c9SVlad Yasevich } 1111a37b85c9SVlad Yasevich 1112a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 1113a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 1114a37b85c9SVlad Yasevich */ 1115a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 1116a37b85c9SVlad Yasevich { 1117a37b85c9SVlad Yasevich int err = 0; 1118a37b85c9SVlad Yasevich 11192594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 11205978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 11212594e906SNikolay Aleksandrov } else { 1122a37b85c9SVlad Yasevich *vid = 0; 1123a37b85c9SVlad Yasevich err = -EINVAL; 1124a37b85c9SVlad Yasevich } 1125a37b85c9SVlad Yasevich 1126a37b85c9SVlad Yasevich return err; 1127a37b85c9SVlad Yasevich } 112878851988SVlad Yasevich 112977751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 113078851988SVlad Yasevich { 113177751ee8SNikolay Aleksandrov if (!vg) 11325be5a2dfSVlad Yasevich return 0; 11335be5a2dfSVlad Yasevich 113478851988SVlad Yasevich smp_rmb(); 113577751ee8SNikolay Aleksandrov return vg->pvid; 113678851988SVlad Yasevich } 113778851988SVlad Yasevich 11388dcea187SNikolay Aleksandrov static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) 11398dcea187SNikolay Aleksandrov { 11408dcea187SNikolay Aleksandrov return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags; 11418dcea187SNikolay Aleksandrov } 1142243a2e63SVlad Yasevich #else 114377751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 114477751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 11452594e906SNikolay Aleksandrov struct sk_buff *skb, 1146a580c76dSNikolay Aleksandrov u16 *vid, u8 *state) 11472594e906SNikolay Aleksandrov { 11482594e906SNikolay Aleksandrov return true; 11492594e906SNikolay Aleksandrov } 11502594e906SNikolay Aleksandrov 11512594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 115285f46c6bSVlad Yasevich const struct sk_buff *skb) 115385f46c6bSVlad Yasevich { 115485f46c6bSVlad Yasevich return true; 115585f46c6bSVlad Yasevich } 115685f46c6bSVlad Yasevich 1157e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 1158e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 1159e0d7968aSToshiaki Makita { 1160e0d7968aSToshiaki Makita return true; 1161e0d7968aSToshiaki Makita } 1162e0d7968aSToshiaki Makita 116378851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 116411538d03SRoopa Prabhu const struct net_bridge_port *port, 11652594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 116678851988SVlad Yasevich struct sk_buff *skb) 116778851988SVlad Yasevich { 116878851988SVlad Yasevich return skb; 116978851988SVlad Yasevich } 117078851988SVlad Yasevich 1171f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1172169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1173243a2e63SVlad Yasevich { 1174f418af63SNikolay Aleksandrov *changed = false; 1175243a2e63SVlad Yasevich return -EOPNOTSUPP; 1176243a2e63SVlad Yasevich } 1177243a2e63SVlad Yasevich 1178243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 1179243a2e63SVlad Yasevich { 1180243a2e63SVlad Yasevich return -EOPNOTSUPP; 1181243a2e63SVlad Yasevich } 1182243a2e63SVlad Yasevich 1183243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1184243a2e63SVlad Yasevich { 1185243a2e63SVlad Yasevich } 1186243a2e63SVlad Yasevich 1187204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1188204177f3SToshiaki Makita { 1189204177f3SToshiaki Makita } 1190204177f3SToshiaki Makita 11915be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 11928580e211SToshiaki Makita { 11935be5a2dfSVlad Yasevich return 0; 11948580e211SToshiaki Makita } 11958580e211SToshiaki Makita 1196f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1197169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1198243a2e63SVlad Yasevich { 1199f418af63SNikolay Aleksandrov *changed = false; 1200243a2e63SVlad Yasevich return -EOPNOTSUPP; 1201243a2e63SVlad Yasevich } 1202243a2e63SVlad Yasevich 1203243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1204243a2e63SVlad Yasevich { 1205243a2e63SVlad Yasevich return -EOPNOTSUPP; 1206243a2e63SVlad Yasevich } 1207243a2e63SVlad Yasevich 1208243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1209243a2e63SVlad Yasevich { 1210243a2e63SVlad Yasevich } 1211243a2e63SVlad Yasevich 12122594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 12132594e906SNikolay Aleksandrov u16 vid) 1214a37b85c9SVlad Yasevich { 1215a37b85c9SVlad Yasevich return NULL; 1216a37b85c9SVlad Yasevich } 1217bc9a25d2SVlad Yasevich 1218169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1219169327d5SPetr Machata struct netlink_ext_ack *extack) 12205be5a2dfSVlad Yasevich { 12215be5a2dfSVlad Yasevich return 0; 12225be5a2dfSVlad Yasevich } 12235be5a2dfSVlad Yasevich 122478851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1225a37b85c9SVlad Yasevich { 1226a37b85c9SVlad Yasevich return 0; 1227a37b85c9SVlad Yasevich } 12282594e906SNikolay Aleksandrov 122977751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 123078851988SVlad Yasevich { 12313df6bf45SVlad Yasevich return 0; 123278851988SVlad Yasevich } 12332796d0c6SVlad Yasevich 1234a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1235a7854037SNikolay Aleksandrov unsigned long val) 1236a7854037SNikolay Aleksandrov { 1237a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1238a7854037SNikolay Aleksandrov } 12392594e906SNikolay Aleksandrov 12402594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 12412594e906SNikolay Aleksandrov u32 filter_mask) 12422594e906SNikolay Aleksandrov { 12432594e906SNikolay Aleksandrov return 0; 12442594e906SNikolay Aleksandrov } 12452594e906SNikolay Aleksandrov 12462594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 12472594e906SNikolay Aleksandrov const struct net_bridge *br) 12482594e906SNikolay Aleksandrov { 12492594e906SNikolay Aleksandrov return NULL; 12502594e906SNikolay Aleksandrov } 12512594e906SNikolay Aleksandrov 12522594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 12532594e906SNikolay Aleksandrov const struct net_bridge_port *p) 12542594e906SNikolay Aleksandrov { 12552594e906SNikolay Aleksandrov return NULL; 12562594e906SNikolay Aleksandrov } 1257907b1e6eSNikolay Aleksandrov 1258907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1259907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1260907b1e6eSNikolay Aleksandrov { 1261907b1e6eSNikolay Aleksandrov return NULL; 1262907b1e6eSNikolay Aleksandrov } 1263907b1e6eSNikolay Aleksandrov 1264907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1265907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1266907b1e6eSNikolay Aleksandrov { 1267907b1e6eSNikolay Aleksandrov return NULL; 1268907b1e6eSNikolay Aleksandrov } 1269a60c0903SNikolay Aleksandrov 1270a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1271a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1272a60c0903SNikolay Aleksandrov { 1273a60c0903SNikolay Aleksandrov } 12749c0ec2e7SMike Manning 12759c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 12769c0ec2e7SMike Manning unsigned long event) 12779c0ec2e7SMike Manning { 12789c0ec2e7SMike Manning } 12799c0ec2e7SMike Manning 1280091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 12819c0ec2e7SMike Manning unsigned long event, void *ptr) 12829c0ec2e7SMike Manning { 1283091adf9bSNikolay Aleksandrov return 0; 12849c0ec2e7SMike Manning } 12858dcea187SNikolay Aleksandrov 12868dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_init(void) 12878dcea187SNikolay Aleksandrov { 12888dcea187SNikolay Aleksandrov } 12898dcea187SNikolay Aleksandrov 12908dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_uninit(void) 12918dcea187SNikolay Aleksandrov { 12928dcea187SNikolay Aleksandrov } 1293cf5bddb9SNikolay Aleksandrov 1294cf5bddb9SNikolay Aleksandrov static inline void br_vlan_notify(const struct net_bridge *br, 1295cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1296cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1297cf5bddb9SNikolay Aleksandrov int cmd) 1298cf5bddb9SNikolay Aleksandrov { 1299cf5bddb9SNikolay Aleksandrov } 1300528ae84aSNikolay Aleksandrov 1301528ae84aSNikolay Aleksandrov static inline bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1302528ae84aSNikolay Aleksandrov const struct net_bridge_vlan *range_end) 1303528ae84aSNikolay Aleksandrov { 1304528ae84aSNikolay Aleksandrov return true; 1305528ae84aSNikolay Aleksandrov } 1306243a2e63SVlad Yasevich #endif 1307243a2e63SVlad Yasevich 13087a53e718SNikolay Aleksandrov /* br_vlan_options.c */ 13097a53e718SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 131099f7c5e0SNikolay Aleksandrov bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, 131199f7c5e0SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 13127a53e718SNikolay Aleksandrov bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v); 13137a53e718SNikolay Aleksandrov size_t br_vlan_opts_nl_size(void); 1314a5d29ae2SNikolay Aleksandrov int br_vlan_process_options(const struct net_bridge *br, 1315a5d29ae2SNikolay Aleksandrov const struct net_bridge_port *p, 1316a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_start, 1317a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_end, 1318a5d29ae2SNikolay Aleksandrov struct nlattr **tb, 1319a5d29ae2SNikolay Aleksandrov struct netlink_ext_ack *extack); 1320a580c76dSNikolay Aleksandrov 1321a580c76dSNikolay Aleksandrov /* vlan state manipulation helpers using *_ONCE to annotate lock-free access */ 1322a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v) 1323a580c76dSNikolay Aleksandrov { 1324a580c76dSNikolay Aleksandrov return READ_ONCE(v->state); 1325a580c76dSNikolay Aleksandrov } 1326a580c76dSNikolay Aleksandrov 1327a580c76dSNikolay Aleksandrov static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state) 1328a580c76dSNikolay Aleksandrov { 1329a580c76dSNikolay Aleksandrov WRITE_ONCE(v->state, state); 1330a580c76dSNikolay Aleksandrov } 1331a580c76dSNikolay Aleksandrov 1332a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg) 1333a580c76dSNikolay Aleksandrov { 1334a580c76dSNikolay Aleksandrov return READ_ONCE(vg->pvid_state); 1335a580c76dSNikolay Aleksandrov } 1336a580c76dSNikolay Aleksandrov 1337a580c76dSNikolay Aleksandrov static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg, 1338a580c76dSNikolay Aleksandrov u8 state) 1339a580c76dSNikolay Aleksandrov { 1340a580c76dSNikolay Aleksandrov WRITE_ONCE(vg->pvid_state, state); 1341a580c76dSNikolay Aleksandrov } 1342a580c76dSNikolay Aleksandrov 1343a580c76dSNikolay Aleksandrov /* learn_allow is true at ingress and false at egress */ 1344a580c76dSNikolay Aleksandrov static inline bool br_vlan_state_allowed(u8 state, bool learn_allow) 1345a580c76dSNikolay Aleksandrov { 1346a580c76dSNikolay Aleksandrov switch (state) { 1347a580c76dSNikolay Aleksandrov case BR_STATE_LEARNING: 1348a580c76dSNikolay Aleksandrov return learn_allow; 1349a580c76dSNikolay Aleksandrov case BR_STATE_FORWARDING: 1350a580c76dSNikolay Aleksandrov return true; 1351a580c76dSNikolay Aleksandrov default: 1352a580c76dSNikolay Aleksandrov return false; 1353a580c76dSNikolay Aleksandrov } 1354a580c76dSNikolay Aleksandrov } 13557a53e718SNikolay Aleksandrov #endif 13567a53e718SNikolay Aleksandrov 13571a4ba64dSPablo Neira Ayuso struct nf_br_ops { 13581a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 13591a4ba64dSPablo Neira Ayuso }; 13601a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 13611a4ba64dSPablo Neira Ayuso 13621da177e4SLinus Torvalds /* br_netfilter.c */ 136334666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 136434666d46SPablo Neira Ayuso int br_nf_core_init(void); 136534666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1366348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1367c0909713SStephen Hemminger #else 136834666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 136934666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 13704adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1371c0909713SStephen Hemminger #endif 13721da177e4SLinus Torvalds 13731da177e4SLinus Torvalds /* br_stp.c */ 1374775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1375348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1376348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1377348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 13781da177e4SLinus Torvalds 1379348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1380348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1381348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1382348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 138382dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 13849e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 138514f98f25Sstephen hemminger 138614f98f25Sstephen hemminger 13871da177e4SLinus Torvalds /* br_stp_if.c */ 1388348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1389348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1390419dba8aSHoratiu Vultur int br_stp_set_enabled(struct net_bridge *br, unsigned long val, 1391419dba8aSHoratiu Vultur struct netlink_ext_ack *extack); 1392348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1393348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1394348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1395348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1396348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1397348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1398348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1399348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 14001da177e4SLinus Torvalds 14011da177e4SLinus Torvalds /* br_stp_bpdu.c */ 14027c85fbf0SPatrick McHardy struct stp_proto; 1403348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 14047c85fbf0SPatrick McHardy struct net_device *dev); 14051da177e4SLinus Torvalds 14061da177e4SLinus Torvalds /* br_stp_timer.c */ 1407348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1408348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1409348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 14101da177e4SLinus Torvalds 14111da177e4SLinus Torvalds /* br.c */ 1412e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1413da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1414da678292SMichał Mirosław #endif 14151da177e4SLinus Torvalds 141665369933SHoratiu Vultur /* br_mrp.c */ 141765369933SHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 141865369933SHoratiu Vultur int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 141965369933SHoratiu Vultur struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 142065369933SHoratiu Vultur int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb); 142165369933SHoratiu Vultur bool br_mrp_enabled(struct net_bridge *br); 142265369933SHoratiu Vultur void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p); 1423df42ef22SHoratiu Vultur int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br); 142465369933SHoratiu Vultur #else 142565369933SHoratiu Vultur static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 142665369933SHoratiu Vultur struct nlattr *attr, int cmd, 142765369933SHoratiu Vultur struct netlink_ext_ack *extack) 142865369933SHoratiu Vultur { 142965369933SHoratiu Vultur return -EOPNOTSUPP; 143065369933SHoratiu Vultur } 143165369933SHoratiu Vultur 143265369933SHoratiu Vultur static inline int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb) 143365369933SHoratiu Vultur { 143465369933SHoratiu Vultur return 0; 143565369933SHoratiu Vultur } 143665369933SHoratiu Vultur 143765369933SHoratiu Vultur static inline bool br_mrp_enabled(struct net_bridge *br) 143865369933SHoratiu Vultur { 14398741e184SJason Yan return false; 144065369933SHoratiu Vultur } 144165369933SHoratiu Vultur 144265369933SHoratiu Vultur static inline void br_mrp_port_del(struct net_bridge *br, 144365369933SHoratiu Vultur struct net_bridge_port *p) 144465369933SHoratiu Vultur { 144565369933SHoratiu Vultur } 1446df42ef22SHoratiu Vultur 1447df42ef22SHoratiu Vultur static inline int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br) 1448df42ef22SHoratiu Vultur { 1449df42ef22SHoratiu Vultur return 0; 1450df42ef22SHoratiu Vultur } 1451df42ef22SHoratiu Vultur 145265369933SHoratiu Vultur #endif 145365369933SHoratiu Vultur 145411dc1f36SStephen Hemminger /* br_netlink.c */ 1455149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1456348662a1SJoe Perches int br_netlink_init(void); 1457348662a1SJoe Perches void br_netlink_fini(void); 145892899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 145992899063SNikolay Aleksandrov const struct net_bridge_port *port); 14602fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 14612fd527b7SPetr Machata struct netlink_ext_ack *extack); 1462add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1463348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 146446c264daSNicolas Dichtel u32 filter_mask, int nlflags); 1465f26b2965SNikolay Aleksandrov int br_process_vlan_info(struct net_bridge *br, 1466f26b2965SNikolay Aleksandrov struct net_bridge_port *p, int cmd, 1467f26b2965SNikolay Aleksandrov struct bridge_vlan_info *vinfo_curr, 1468f26b2965SNikolay Aleksandrov struct bridge_vlan_info **vinfo_last, 1469f26b2965SNikolay Aleksandrov bool *changed, 1470f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack); 147111dc1f36SStephen Hemminger 14721da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 14731da177e4SLinus Torvalds /* br_sysfs_if.c */ 147452cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1475348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1476348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 14771da177e4SLinus Torvalds 14781da177e4SLinus Torvalds /* br_sysfs_br.c */ 1479348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1480348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 14811da177e4SLinus Torvalds 14821da177e4SLinus Torvalds #else 14831da177e4SLinus Torvalds 14840cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 14850cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 14860cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 14870cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 14881da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 14891da177e4SLinus Torvalds 14906bc506b4SIdo Schimmel /* br_switchdev.c */ 14916bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 14926bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 14936bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 14946bc506b4SIdo Schimmel struct sk_buff *skb); 14956bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 14966bc506b4SIdo Schimmel const struct sk_buff *skb); 14973922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 14983922285dSArkadi Sharshevsky unsigned long flags, 14993922285dSArkadi Sharshevsky unsigned long mask); 15006b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 15016b26b51bSArkadi Sharshevsky int type); 1502169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1503169327d5SPetr Machata struct netlink_ext_ack *extack); 1504d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1505f1c2eddfSIdo Schimmel 1506f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1507f1c2eddfSIdo Schimmel { 1508f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1509f1c2eddfSIdo Schimmel } 15106bc506b4SIdo Schimmel #else 15116bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 15126bc506b4SIdo Schimmel { 15136bc506b4SIdo Schimmel return 0; 15146bc506b4SIdo Schimmel } 15156bc506b4SIdo Schimmel 15166bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 15176bc506b4SIdo Schimmel struct sk_buff *skb) 15186bc506b4SIdo Schimmel { 15196bc506b4SIdo Schimmel } 15206bc506b4SIdo Schimmel 15216bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 15226bc506b4SIdo Schimmel const struct sk_buff *skb) 15236bc506b4SIdo Schimmel { 15246bc506b4SIdo Schimmel return true; 15256bc506b4SIdo Schimmel } 15263922285dSArkadi Sharshevsky 15273922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 15283922285dSArkadi Sharshevsky unsigned long flags, 15293922285dSArkadi Sharshevsky unsigned long mask) 15303922285dSArkadi Sharshevsky { 15313922285dSArkadi Sharshevsky return 0; 15323922285dSArkadi Sharshevsky } 15336b26b51bSArkadi Sharshevsky 1534d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1535169327d5SPetr Machata u16 vid, u16 flags, 1536169327d5SPetr Machata struct netlink_ext_ack *extack) 1537d66e4348SPetr Machata { 1538d66e4348SPetr Machata return -EOPNOTSUPP; 1539d66e4348SPetr Machata } 1540d66e4348SPetr Machata 1541d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1542d66e4348SPetr Machata { 1543d66e4348SPetr Machata return -EOPNOTSUPP; 1544d66e4348SPetr Machata } 1545d66e4348SPetr Machata 15466b26b51bSArkadi Sharshevsky static inline void 15476b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 15486b26b51bSArkadi Sharshevsky { 15496b26b51bSArkadi Sharshevsky } 1550f1c2eddfSIdo Schimmel 1551f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1552f1c2eddfSIdo Schimmel { 1553f1c2eddfSIdo Schimmel } 15546bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 15556bc506b4SIdo Schimmel 1556057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1557821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1558057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1559057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1560ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1561ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1562ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 15631da177e4SLinus Torvalds #endif 1564