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); 795851d0a73SJoseph Huang void br_multicast_join_snoopers(struct net_bridge *br); 796851d0a73SJoseph Huang void br_multicast_leave_snoopers(struct net_bridge *br); 797348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 798348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 799e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 80037b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 80137b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 802348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 803348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 804348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 805348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 806348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 8075e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 808aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 809aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 810aa2ae3e7SNikolay Aleksandrov #endif 811348662a1SJoe Perches struct net_bridge_mdb_entry * 81219e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 813348662a1SJoe Perches struct net_bridge_mdb_entry * 81419e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 815348662a1SJoe Perches struct net_bridge_port_group * 816348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 817762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 8188b671779SNikolay Aleksandrov unsigned char flags, const unsigned char *src, 8198f8cb77eSNikolay Aleksandrov u8 filter_mode, u8 rt_protocol); 82019e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 82119e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 82281f19838SNikolay Aleksandrov void br_mdb_notify(struct net_device *dev, struct net_bridge_mdb_entry *mp, 82381f19838SNikolay Aleksandrov struct net_bridge_port_group *pg, int type); 824949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 825949f1e39SSatish Ashok int type); 826681590bdSNikolay Aleksandrov void br_multicast_del_pg(struct net_bridge_mdb_entry *mp, 827681590bdSNikolay Aleksandrov struct net_bridge_port_group *pg, 828681590bdSNikolay Aleksandrov struct net_bridge_port_group __rcu **pp); 8291080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 830a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 8311080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 832b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 8331080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 8341080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 8351080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 83619e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 83719e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 8381bc844eeSNikolay Aleksandrov void br_multicast_host_join(struct net_bridge_mdb_entry *mp, bool notify); 8391bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 8408266a049SNikolay Aleksandrov void br_multicast_star_g_handle_mode(struct net_bridge_port_group *pg, 8418266a049SNikolay Aleksandrov u8 filter_mode); 8428266a049SNikolay Aleksandrov void br_multicast_sg_add_exclude_ports(struct net_bridge_mdb_entry *star_mp, 8438266a049SNikolay Aleksandrov struct net_bridge_port_group *sg); 84485b35269SSridhar Samudrala 845cfd56754SCong Wang #define mlock_dereference(X, br) \ 846cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 847cfd56754SCong Wang 84885b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 84985b35269SSridhar Samudrala { 85085b35269SSridhar Samudrala return br->multicast_router == 2 || 85185b35269SSridhar Samudrala (br->multicast_router == 1 && 85285b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 85385b35269SSridhar Samudrala } 854b00589afSLinus Lüssing 855cc0fdd80SLinus Lüssing static inline bool 856cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 8570888d5f3Sdaniel struct bridge_mcast_other_query *querier, 8580888d5f3Sdaniel const bool is_ipv6) 859b00589afSLinus Lüssing { 8600888d5f3Sdaniel bool own_querier_enabled; 8610888d5f3Sdaniel 862675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 863675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 8640888d5f3Sdaniel own_querier_enabled = false; 8650888d5f3Sdaniel else 8660888d5f3Sdaniel own_querier_enabled = true; 8670888d5f3Sdaniel } else { 8680888d5f3Sdaniel own_querier_enabled = false; 8690888d5f3Sdaniel } 8700888d5f3Sdaniel 871cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 8720888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 873cc0fdd80SLinus Lüssing } 874cc0fdd80SLinus Lüssing 875cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 876cc0fdd80SLinus Lüssing struct ethhdr *eth) 877cc0fdd80SLinus Lüssing { 878cc0fdd80SLinus Lüssing switch (eth->h_proto) { 879cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 8800888d5f3Sdaniel return __br_multicast_querier_exists(br, 8810888d5f3Sdaniel &br->ip4_other_query, false); 882cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 883cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 8840888d5f3Sdaniel return __br_multicast_querier_exists(br, 8850888d5f3Sdaniel &br->ip6_other_query, true); 886cc0fdd80SLinus Lüssing #endif 887cc0fdd80SLinus Lüssing default: 888cc0fdd80SLinus Lüssing return false; 889cc0fdd80SLinus Lüssing } 890b00589afSLinus Lüssing } 8911080ab95SNikolay Aleksandrov 89288d4bd18SNikolay Aleksandrov static inline bool br_multicast_is_star_g(const struct br_ip *ip) 89388d4bd18SNikolay Aleksandrov { 89488d4bd18SNikolay Aleksandrov switch (ip->proto) { 89588d4bd18SNikolay Aleksandrov case htons(ETH_P_IP): 89688d4bd18SNikolay Aleksandrov return ipv4_is_zeronet(ip->src.ip4); 89788d4bd18SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 89888d4bd18SNikolay Aleksandrov case htons(ETH_P_IPV6): 89988d4bd18SNikolay Aleksandrov return ipv6_addr_any(&ip->src.ip6); 90088d4bd18SNikolay Aleksandrov #endif 90188d4bd18SNikolay Aleksandrov default: 90288d4bd18SNikolay Aleksandrov return false; 90388d4bd18SNikolay Aleksandrov } 90488d4bd18SNikolay Aleksandrov } 90588d4bd18SNikolay Aleksandrov 9068266a049SNikolay Aleksandrov static inline bool br_multicast_should_handle_mode(const struct net_bridge *br, 9078266a049SNikolay Aleksandrov __be16 proto) 9088266a049SNikolay Aleksandrov { 9098266a049SNikolay Aleksandrov switch (proto) { 9108266a049SNikolay Aleksandrov case htons(ETH_P_IP): 9118266a049SNikolay Aleksandrov return !!(br->multicast_igmp_version == 3); 9128266a049SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 9138266a049SNikolay Aleksandrov case htons(ETH_P_IPV6): 9148266a049SNikolay Aleksandrov return !!(br->multicast_mld_version == 2); 9158266a049SNikolay Aleksandrov #endif 9168266a049SNikolay Aleksandrov default: 9178266a049SNikolay Aleksandrov return false; 9188266a049SNikolay Aleksandrov } 9198266a049SNikolay Aleksandrov } 9208266a049SNikolay Aleksandrov 9211080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 9221080ab95SNikolay Aleksandrov { 9231080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 9241080ab95SNikolay Aleksandrov } 92542c11ccfSNikolay Aleksandrov 92642c11ccfSNikolay Aleksandrov static inline unsigned long br_multicast_lmqt(const struct net_bridge *br) 92742c11ccfSNikolay Aleksandrov { 92842c11ccfSNikolay Aleksandrov return br->multicast_last_member_interval * 92942c11ccfSNikolay Aleksandrov br->multicast_last_member_count; 93042c11ccfSNikolay Aleksandrov } 9310436862eSNikolay Aleksandrov 9320436862eSNikolay Aleksandrov static inline unsigned long br_multicast_gmi(const struct net_bridge *br) 9330436862eSNikolay Aleksandrov { 9340436862eSNikolay Aleksandrov /* use the RFC default of 2 for QRV */ 9350436862eSNikolay Aleksandrov return 2 * br->multicast_query_interval + 9360436862eSNikolay Aleksandrov br->multicast_query_response_interval; 9370436862eSNikolay Aleksandrov } 938eb1d1641SHerbert Xu #else 939eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 940eb1d1641SHerbert Xu struct net_bridge_port *port, 94106499098SVlad Yasevich struct sk_buff *skb, 94206499098SVlad Yasevich u16 vid) 943eb1d1641SHerbert Xu { 944eb1d1641SHerbert Xu return 0; 945eb1d1641SHerbert Xu } 946eb1d1641SHerbert Xu 947eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 948fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 949eb1d1641SHerbert Xu { 950eb1d1641SHerbert Xu return NULL; 951eb1d1641SHerbert Xu } 952eb1d1641SHerbert Xu 9531080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 954eb1d1641SHerbert Xu { 9551080ab95SNikolay Aleksandrov return 0; 956eb1d1641SHerbert Xu } 957eb1d1641SHerbert Xu 958eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 959eb1d1641SHerbert Xu { 960eb1d1641SHerbert Xu } 961eb1d1641SHerbert Xu 962eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 963eb1d1641SHerbert Xu { 964eb1d1641SHerbert Xu } 965eb1d1641SHerbert Xu 966eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 967eb1d1641SHerbert Xu { 968eb1d1641SHerbert Xu } 969eb1d1641SHerbert Xu 970eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 971eb1d1641SHerbert Xu { 972eb1d1641SHerbert Xu } 973eb1d1641SHerbert Xu 974851d0a73SJoseph Huang static inline void br_multicast_join_snoopers(struct net_bridge *br) 975851d0a73SJoseph Huang { 976851d0a73SJoseph Huang } 977851d0a73SJoseph Huang 978851d0a73SJoseph Huang static inline void br_multicast_leave_snoopers(struct net_bridge *br) 979851d0a73SJoseph Huang { 980851d0a73SJoseph Huang } 981851d0a73SJoseph Huang 982eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 983eb1d1641SHerbert Xu { 984eb1d1641SHerbert Xu } 985eb1d1641SHerbert Xu 986eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 987eb1d1641SHerbert Xu { 988eb1d1641SHerbert Xu } 9895cb5e947SHerbert Xu 990a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 991a7ce45a7SNikolay Aleksandrov { 992a7ce45a7SNikolay Aleksandrov } 993a7ce45a7SNikolay Aleksandrov 99437b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 99537b090e6SNikolay Aleksandrov struct sk_buff *skb, 99637b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 9975cb5e947SHerbert Xu { 9985cb5e947SHerbert Xu } 9995cb5e947SHerbert Xu 1000eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 1001eb1d1641SHerbert Xu { 100203aaa9e2SGustavo A. R. Silva return false; 1003eb1d1641SHerbert Xu } 100437b090e6SNikolay Aleksandrov 1005cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 1006cc0fdd80SLinus Lüssing struct ethhdr *eth) 1007b00589afSLinus Lüssing { 1008b00589afSLinus Lüssing return false; 1009b00589afSLinus Lüssing } 101037b090e6SNikolay Aleksandrov 1011fdb184d1SRami Rosen static inline void br_mdb_init(void) 1012fdb184d1SRami Rosen { 1013fdb184d1SRami Rosen } 101437b090e6SNikolay Aleksandrov 1015fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 1016fdb184d1SRami Rosen { 1017fdb184d1SRami Rosen } 10181080ab95SNikolay Aleksandrov 101919e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 102019e3a9c9SNikolay Aleksandrov { 102119e3a9c9SNikolay Aleksandrov return 0; 102219e3a9c9SNikolay Aleksandrov } 102319e3a9c9SNikolay Aleksandrov 102419e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 102519e3a9c9SNikolay Aleksandrov { 102619e3a9c9SNikolay Aleksandrov } 102719e3a9c9SNikolay Aleksandrov 10281080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 10291080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 1030a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 1031a65056ecSNikolay Aleksandrov u8 type, u8 dir) 10321080ab95SNikolay Aleksandrov { 10331080ab95SNikolay Aleksandrov } 10341080ab95SNikolay Aleksandrov 10351080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 10361080ab95SNikolay Aleksandrov { 10371080ab95SNikolay Aleksandrov return 0; 10381080ab95SNikolay Aleksandrov } 10391080ab95SNikolay Aleksandrov 1040b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 1041b6fe0440SIdo Schimmel { 1042b6fe0440SIdo Schimmel } 1043b6fe0440SIdo Schimmel 10441080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 10451080ab95SNikolay Aleksandrov { 10461080ab95SNikolay Aleksandrov return 0; 10471080ab95SNikolay Aleksandrov } 104885b35269SSridhar Samudrala #endif 1049eb1d1641SHerbert Xu 1050243a2e63SVlad Yasevich /* br_vlan.c */ 1051243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 105277751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 105377751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 1054a580c76dSNikolay Aleksandrov u16 *vid, u8 *state); 105577751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 105685f46c6bSVlad Yasevich const struct sk_buff *skb); 1057e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 1058348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 105911538d03SRoopa Prabhu const struct net_bridge_port *port, 10602594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 106178851988SVlad Yasevich struct sk_buff *skb); 1062f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1063169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1064348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 1065348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 10662594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 1067204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 1068a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 1069348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 1070d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 1071204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 10726dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 10739163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 10745be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 107596a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 1076169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 1077169327d5SPetr Machata struct netlink_ext_ack *extack); 1078f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1079169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1080348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 1081348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 1082169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 10832594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 1084a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 1085a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 10869c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 1087091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 10889c0ec2e7SMike Manning void *ptr); 10898dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void); 10908dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void); 1091cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 1092cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1093cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1094cf5bddb9SNikolay Aleksandrov int cmd); 1095a5d29ae2SNikolay Aleksandrov bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1096a5d29ae2SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 1097a37b85c9SVlad Yasevich 10982594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 1099a37b85c9SVlad Yasevich const struct net_bridge *br) 1100a37b85c9SVlad Yasevich { 1101907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 1102a37b85c9SVlad Yasevich } 1103a37b85c9SVlad Yasevich 11042594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 1105a37b85c9SVlad Yasevich const struct net_bridge_port *p) 1106a37b85c9SVlad Yasevich { 1107907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 1108907b1e6eSNikolay Aleksandrov } 1109907b1e6eSNikolay Aleksandrov 1110907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1111907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1112907b1e6eSNikolay Aleksandrov { 1113907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 1114907b1e6eSNikolay Aleksandrov } 1115907b1e6eSNikolay Aleksandrov 1116907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1117907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1118907b1e6eSNikolay Aleksandrov { 1119907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 1120a37b85c9SVlad Yasevich } 1121a37b85c9SVlad Yasevich 1122a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 1123a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 1124a37b85c9SVlad Yasevich */ 1125a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 1126a37b85c9SVlad Yasevich { 1127a37b85c9SVlad Yasevich int err = 0; 1128a37b85c9SVlad Yasevich 11292594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 11305978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 11312594e906SNikolay Aleksandrov } else { 1132a37b85c9SVlad Yasevich *vid = 0; 1133a37b85c9SVlad Yasevich err = -EINVAL; 1134a37b85c9SVlad Yasevich } 1135a37b85c9SVlad Yasevich 1136a37b85c9SVlad Yasevich return err; 1137a37b85c9SVlad Yasevich } 113878851988SVlad Yasevich 113977751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 114078851988SVlad Yasevich { 114177751ee8SNikolay Aleksandrov if (!vg) 11425be5a2dfSVlad Yasevich return 0; 11435be5a2dfSVlad Yasevich 114478851988SVlad Yasevich smp_rmb(); 114577751ee8SNikolay Aleksandrov return vg->pvid; 114678851988SVlad Yasevich } 114778851988SVlad Yasevich 11488dcea187SNikolay Aleksandrov static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) 11498dcea187SNikolay Aleksandrov { 11508dcea187SNikolay Aleksandrov return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags; 11518dcea187SNikolay Aleksandrov } 1152243a2e63SVlad Yasevich #else 115377751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 115477751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 11552594e906SNikolay Aleksandrov struct sk_buff *skb, 1156a580c76dSNikolay Aleksandrov u16 *vid, u8 *state) 11572594e906SNikolay Aleksandrov { 11582594e906SNikolay Aleksandrov return true; 11592594e906SNikolay Aleksandrov } 11602594e906SNikolay Aleksandrov 11612594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 116285f46c6bSVlad Yasevich const struct sk_buff *skb) 116385f46c6bSVlad Yasevich { 116485f46c6bSVlad Yasevich return true; 116585f46c6bSVlad Yasevich } 116685f46c6bSVlad Yasevich 1167e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 1168e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 1169e0d7968aSToshiaki Makita { 1170e0d7968aSToshiaki Makita return true; 1171e0d7968aSToshiaki Makita } 1172e0d7968aSToshiaki Makita 117378851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 117411538d03SRoopa Prabhu const struct net_bridge_port *port, 11752594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 117678851988SVlad Yasevich struct sk_buff *skb) 117778851988SVlad Yasevich { 117878851988SVlad Yasevich return skb; 117978851988SVlad Yasevich } 118078851988SVlad Yasevich 1181f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1182169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1183243a2e63SVlad Yasevich { 1184f418af63SNikolay Aleksandrov *changed = false; 1185243a2e63SVlad Yasevich return -EOPNOTSUPP; 1186243a2e63SVlad Yasevich } 1187243a2e63SVlad Yasevich 1188243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 1189243a2e63SVlad Yasevich { 1190243a2e63SVlad Yasevich return -EOPNOTSUPP; 1191243a2e63SVlad Yasevich } 1192243a2e63SVlad Yasevich 1193243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1194243a2e63SVlad Yasevich { 1195243a2e63SVlad Yasevich } 1196243a2e63SVlad Yasevich 1197204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1198204177f3SToshiaki Makita { 1199204177f3SToshiaki Makita } 1200204177f3SToshiaki Makita 12015be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 12028580e211SToshiaki Makita { 12035be5a2dfSVlad Yasevich return 0; 12048580e211SToshiaki Makita } 12058580e211SToshiaki Makita 1206f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1207169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1208243a2e63SVlad Yasevich { 1209f418af63SNikolay Aleksandrov *changed = false; 1210243a2e63SVlad Yasevich return -EOPNOTSUPP; 1211243a2e63SVlad Yasevich } 1212243a2e63SVlad Yasevich 1213243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1214243a2e63SVlad Yasevich { 1215243a2e63SVlad Yasevich return -EOPNOTSUPP; 1216243a2e63SVlad Yasevich } 1217243a2e63SVlad Yasevich 1218243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1219243a2e63SVlad Yasevich { 1220243a2e63SVlad Yasevich } 1221243a2e63SVlad Yasevich 12222594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 12232594e906SNikolay Aleksandrov u16 vid) 1224a37b85c9SVlad Yasevich { 1225a37b85c9SVlad Yasevich return NULL; 1226a37b85c9SVlad Yasevich } 1227bc9a25d2SVlad Yasevich 1228169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1229169327d5SPetr Machata struct netlink_ext_ack *extack) 12305be5a2dfSVlad Yasevich { 12315be5a2dfSVlad Yasevich return 0; 12325be5a2dfSVlad Yasevich } 12335be5a2dfSVlad Yasevich 123478851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1235a37b85c9SVlad Yasevich { 1236a37b85c9SVlad Yasevich return 0; 1237a37b85c9SVlad Yasevich } 12382594e906SNikolay Aleksandrov 123977751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 124078851988SVlad Yasevich { 12413df6bf45SVlad Yasevich return 0; 124278851988SVlad Yasevich } 12432796d0c6SVlad Yasevich 1244a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1245a7854037SNikolay Aleksandrov unsigned long val) 1246a7854037SNikolay Aleksandrov { 1247a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1248a7854037SNikolay Aleksandrov } 12492594e906SNikolay Aleksandrov 12502594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 12512594e906SNikolay Aleksandrov u32 filter_mask) 12522594e906SNikolay Aleksandrov { 12532594e906SNikolay Aleksandrov return 0; 12542594e906SNikolay Aleksandrov } 12552594e906SNikolay Aleksandrov 12562594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 12572594e906SNikolay Aleksandrov const struct net_bridge *br) 12582594e906SNikolay Aleksandrov { 12592594e906SNikolay Aleksandrov return NULL; 12602594e906SNikolay Aleksandrov } 12612594e906SNikolay Aleksandrov 12622594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 12632594e906SNikolay Aleksandrov const struct net_bridge_port *p) 12642594e906SNikolay Aleksandrov { 12652594e906SNikolay Aleksandrov return NULL; 12662594e906SNikolay Aleksandrov } 1267907b1e6eSNikolay Aleksandrov 1268907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1269907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1270907b1e6eSNikolay Aleksandrov { 1271907b1e6eSNikolay Aleksandrov return NULL; 1272907b1e6eSNikolay Aleksandrov } 1273907b1e6eSNikolay Aleksandrov 1274907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1275907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1276907b1e6eSNikolay Aleksandrov { 1277907b1e6eSNikolay Aleksandrov return NULL; 1278907b1e6eSNikolay Aleksandrov } 1279a60c0903SNikolay Aleksandrov 1280a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1281a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1282a60c0903SNikolay Aleksandrov { 1283a60c0903SNikolay Aleksandrov } 12849c0ec2e7SMike Manning 12859c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 12869c0ec2e7SMike Manning unsigned long event) 12879c0ec2e7SMike Manning { 12889c0ec2e7SMike Manning } 12899c0ec2e7SMike Manning 1290091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 12919c0ec2e7SMike Manning unsigned long event, void *ptr) 12929c0ec2e7SMike Manning { 1293091adf9bSNikolay Aleksandrov return 0; 12949c0ec2e7SMike Manning } 12958dcea187SNikolay Aleksandrov 12968dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_init(void) 12978dcea187SNikolay Aleksandrov { 12988dcea187SNikolay Aleksandrov } 12998dcea187SNikolay Aleksandrov 13008dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_uninit(void) 13018dcea187SNikolay Aleksandrov { 13028dcea187SNikolay Aleksandrov } 1303cf5bddb9SNikolay Aleksandrov 1304cf5bddb9SNikolay Aleksandrov static inline void br_vlan_notify(const struct net_bridge *br, 1305cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1306cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1307cf5bddb9SNikolay Aleksandrov int cmd) 1308cf5bddb9SNikolay Aleksandrov { 1309cf5bddb9SNikolay Aleksandrov } 1310528ae84aSNikolay Aleksandrov 1311528ae84aSNikolay Aleksandrov static inline bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1312528ae84aSNikolay Aleksandrov const struct net_bridge_vlan *range_end) 1313528ae84aSNikolay Aleksandrov { 1314528ae84aSNikolay Aleksandrov return true; 1315528ae84aSNikolay Aleksandrov } 1316243a2e63SVlad Yasevich #endif 1317243a2e63SVlad Yasevich 13187a53e718SNikolay Aleksandrov /* br_vlan_options.c */ 13197a53e718SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 132099f7c5e0SNikolay Aleksandrov bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, 132199f7c5e0SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 13227a53e718SNikolay Aleksandrov bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v); 13237a53e718SNikolay Aleksandrov size_t br_vlan_opts_nl_size(void); 1324a5d29ae2SNikolay Aleksandrov int br_vlan_process_options(const struct net_bridge *br, 1325a5d29ae2SNikolay Aleksandrov const struct net_bridge_port *p, 1326a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_start, 1327a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_end, 1328a5d29ae2SNikolay Aleksandrov struct nlattr **tb, 1329a5d29ae2SNikolay Aleksandrov struct netlink_ext_ack *extack); 1330a580c76dSNikolay Aleksandrov 1331a580c76dSNikolay Aleksandrov /* vlan state manipulation helpers using *_ONCE to annotate lock-free access */ 1332a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v) 1333a580c76dSNikolay Aleksandrov { 1334a580c76dSNikolay Aleksandrov return READ_ONCE(v->state); 1335a580c76dSNikolay Aleksandrov } 1336a580c76dSNikolay Aleksandrov 1337a580c76dSNikolay Aleksandrov static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state) 1338a580c76dSNikolay Aleksandrov { 1339a580c76dSNikolay Aleksandrov WRITE_ONCE(v->state, state); 1340a580c76dSNikolay Aleksandrov } 1341a580c76dSNikolay Aleksandrov 1342a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg) 1343a580c76dSNikolay Aleksandrov { 1344a580c76dSNikolay Aleksandrov return READ_ONCE(vg->pvid_state); 1345a580c76dSNikolay Aleksandrov } 1346a580c76dSNikolay Aleksandrov 1347a580c76dSNikolay Aleksandrov static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg, 1348a580c76dSNikolay Aleksandrov u8 state) 1349a580c76dSNikolay Aleksandrov { 1350a580c76dSNikolay Aleksandrov WRITE_ONCE(vg->pvid_state, state); 1351a580c76dSNikolay Aleksandrov } 1352a580c76dSNikolay Aleksandrov 1353a580c76dSNikolay Aleksandrov /* learn_allow is true at ingress and false at egress */ 1354a580c76dSNikolay Aleksandrov static inline bool br_vlan_state_allowed(u8 state, bool learn_allow) 1355a580c76dSNikolay Aleksandrov { 1356a580c76dSNikolay Aleksandrov switch (state) { 1357a580c76dSNikolay Aleksandrov case BR_STATE_LEARNING: 1358a580c76dSNikolay Aleksandrov return learn_allow; 1359a580c76dSNikolay Aleksandrov case BR_STATE_FORWARDING: 1360a580c76dSNikolay Aleksandrov return true; 1361a580c76dSNikolay Aleksandrov default: 1362a580c76dSNikolay Aleksandrov return false; 1363a580c76dSNikolay Aleksandrov } 1364a580c76dSNikolay Aleksandrov } 13657a53e718SNikolay Aleksandrov #endif 13667a53e718SNikolay Aleksandrov 13671a4ba64dSPablo Neira Ayuso struct nf_br_ops { 13681a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 13691a4ba64dSPablo Neira Ayuso }; 13701a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 13711a4ba64dSPablo Neira Ayuso 13721da177e4SLinus Torvalds /* br_netfilter.c */ 137334666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 137434666d46SPablo Neira Ayuso int br_nf_core_init(void); 137534666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1376348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1377c0909713SStephen Hemminger #else 137834666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 137934666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 13804adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1381c0909713SStephen Hemminger #endif 13821da177e4SLinus Torvalds 13831da177e4SLinus Torvalds /* br_stp.c */ 1384775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1385348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1386348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1387348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 13881da177e4SLinus Torvalds 1389348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1390348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1391348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1392348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 139382dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 13949e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 139514f98f25Sstephen hemminger 139614f98f25Sstephen hemminger 13971da177e4SLinus Torvalds /* br_stp_if.c */ 1398348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1399348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1400419dba8aSHoratiu Vultur int br_stp_set_enabled(struct net_bridge *br, unsigned long val, 1401419dba8aSHoratiu Vultur struct netlink_ext_ack *extack); 1402348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1403348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1404348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1405348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1406348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1407348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1408348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1409348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 14101da177e4SLinus Torvalds 14111da177e4SLinus Torvalds /* br_stp_bpdu.c */ 14127c85fbf0SPatrick McHardy struct stp_proto; 1413348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 14147c85fbf0SPatrick McHardy struct net_device *dev); 14151da177e4SLinus Torvalds 14161da177e4SLinus Torvalds /* br_stp_timer.c */ 1417348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1418348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1419348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 14201da177e4SLinus Torvalds 14211da177e4SLinus Torvalds /* br.c */ 1422e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1423da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1424da678292SMichał Mirosław #endif 14251da177e4SLinus Torvalds 142665369933SHoratiu Vultur /* br_mrp.c */ 142765369933SHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 142865369933SHoratiu Vultur int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 142965369933SHoratiu Vultur struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 143065369933SHoratiu Vultur int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb); 143165369933SHoratiu Vultur bool br_mrp_enabled(struct net_bridge *br); 143265369933SHoratiu Vultur void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p); 1433df42ef22SHoratiu Vultur int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br); 143465369933SHoratiu Vultur #else 143565369933SHoratiu Vultur static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 143665369933SHoratiu Vultur struct nlattr *attr, int cmd, 143765369933SHoratiu Vultur struct netlink_ext_ack *extack) 143865369933SHoratiu Vultur { 143965369933SHoratiu Vultur return -EOPNOTSUPP; 144065369933SHoratiu Vultur } 144165369933SHoratiu Vultur 144265369933SHoratiu Vultur static inline int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb) 144365369933SHoratiu Vultur { 144465369933SHoratiu Vultur return 0; 144565369933SHoratiu Vultur } 144665369933SHoratiu Vultur 144765369933SHoratiu Vultur static inline bool br_mrp_enabled(struct net_bridge *br) 144865369933SHoratiu Vultur { 14498741e184SJason Yan return false; 145065369933SHoratiu Vultur } 145165369933SHoratiu Vultur 145265369933SHoratiu Vultur static inline void br_mrp_port_del(struct net_bridge *br, 145365369933SHoratiu Vultur struct net_bridge_port *p) 145465369933SHoratiu Vultur { 145565369933SHoratiu Vultur } 1456df42ef22SHoratiu Vultur 1457df42ef22SHoratiu Vultur static inline int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br) 1458df42ef22SHoratiu Vultur { 1459df42ef22SHoratiu Vultur return 0; 1460df42ef22SHoratiu Vultur } 1461df42ef22SHoratiu Vultur 146265369933SHoratiu Vultur #endif 146365369933SHoratiu Vultur 146411dc1f36SStephen Hemminger /* br_netlink.c */ 1465149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1466348662a1SJoe Perches int br_netlink_init(void); 1467348662a1SJoe Perches void br_netlink_fini(void); 146892899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 146992899063SNikolay Aleksandrov const struct net_bridge_port *port); 14702fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 14712fd527b7SPetr Machata struct netlink_ext_ack *extack); 1472add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1473348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 147446c264daSNicolas Dichtel u32 filter_mask, int nlflags); 1475f26b2965SNikolay Aleksandrov int br_process_vlan_info(struct net_bridge *br, 1476f26b2965SNikolay Aleksandrov struct net_bridge_port *p, int cmd, 1477f26b2965SNikolay Aleksandrov struct bridge_vlan_info *vinfo_curr, 1478f26b2965SNikolay Aleksandrov struct bridge_vlan_info **vinfo_last, 1479f26b2965SNikolay Aleksandrov bool *changed, 1480f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack); 148111dc1f36SStephen Hemminger 14821da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 14831da177e4SLinus Torvalds /* br_sysfs_if.c */ 148452cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1485348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1486348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 14871da177e4SLinus Torvalds 14881da177e4SLinus Torvalds /* br_sysfs_br.c */ 1489348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1490348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 14911da177e4SLinus Torvalds 14921da177e4SLinus Torvalds #else 14931da177e4SLinus Torvalds 14940cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 14950cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 14960cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 14970cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 14981da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 14991da177e4SLinus Torvalds 15006bc506b4SIdo Schimmel /* br_switchdev.c */ 15016bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 15026bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 15036bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 15046bc506b4SIdo Schimmel struct sk_buff *skb); 15056bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 15066bc506b4SIdo Schimmel const struct sk_buff *skb); 15073922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 15083922285dSArkadi Sharshevsky unsigned long flags, 15093922285dSArkadi Sharshevsky unsigned long mask); 15106b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 15116b26b51bSArkadi Sharshevsky int type); 1512169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1513169327d5SPetr Machata struct netlink_ext_ack *extack); 1514d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1515f1c2eddfSIdo Schimmel 1516f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1517f1c2eddfSIdo Schimmel { 1518f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1519f1c2eddfSIdo Schimmel } 15206bc506b4SIdo Schimmel #else 15216bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 15226bc506b4SIdo Schimmel { 15236bc506b4SIdo Schimmel return 0; 15246bc506b4SIdo Schimmel } 15256bc506b4SIdo Schimmel 15266bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 15276bc506b4SIdo Schimmel struct sk_buff *skb) 15286bc506b4SIdo Schimmel { 15296bc506b4SIdo Schimmel } 15306bc506b4SIdo Schimmel 15316bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 15326bc506b4SIdo Schimmel const struct sk_buff *skb) 15336bc506b4SIdo Schimmel { 15346bc506b4SIdo Schimmel return true; 15356bc506b4SIdo Schimmel } 15363922285dSArkadi Sharshevsky 15373922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 15383922285dSArkadi Sharshevsky unsigned long flags, 15393922285dSArkadi Sharshevsky unsigned long mask) 15403922285dSArkadi Sharshevsky { 15413922285dSArkadi Sharshevsky return 0; 15423922285dSArkadi Sharshevsky } 15436b26b51bSArkadi Sharshevsky 1544d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1545169327d5SPetr Machata u16 vid, u16 flags, 1546169327d5SPetr Machata struct netlink_ext_ack *extack) 1547d66e4348SPetr Machata { 1548d66e4348SPetr Machata return -EOPNOTSUPP; 1549d66e4348SPetr Machata } 1550d66e4348SPetr Machata 1551d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1552d66e4348SPetr Machata { 1553d66e4348SPetr Machata return -EOPNOTSUPP; 1554d66e4348SPetr Machata } 1555d66e4348SPetr Machata 15566b26b51bSArkadi Sharshevsky static inline void 15576b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 15586b26b51bSArkadi Sharshevsky { 15596b26b51bSArkadi Sharshevsky } 1560f1c2eddfSIdo Schimmel 1561f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1562f1c2eddfSIdo Schimmel { 1563f1c2eddfSIdo Schimmel } 15646bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 15656bc506b4SIdo Schimmel 1566057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1567821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1568057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1569057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1570ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1571ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1572ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 15731da177e4SLinus Torvalds #endif 1574