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 511da177e4SLinus Torvalds typedef struct bridge_id bridge_id; 521da177e4SLinus Torvalds typedef struct mac_addr mac_addr; 531da177e4SLinus Torvalds typedef __u16 port_id; 541da177e4SLinus Torvalds 551c1cb6d0SNikolay Aleksandrov struct bridge_id { 561da177e4SLinus Torvalds unsigned char prio[2]; 57e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 581da177e4SLinus Torvalds }; 591da177e4SLinus Torvalds 601c1cb6d0SNikolay Aleksandrov struct mac_addr { 61e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 621da177e4SLinus Torvalds }; 631da177e4SLinus Torvalds 64cc0fdd80SLinus Lüssing #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 65cc0fdd80SLinus Lüssing /* our own querier */ 6690010b36SLinus Lüssing struct bridge_mcast_own_query { 67cc0fdd80SLinus Lüssing struct timer_list timer; 68cc0fdd80SLinus Lüssing u32 startup_sent; 69cc0fdd80SLinus Lüssing }; 70cc0fdd80SLinus Lüssing 71cc0fdd80SLinus Lüssing /* other querier */ 7290010b36SLinus Lüssing struct bridge_mcast_other_query { 73cc0fdd80SLinus Lüssing struct timer_list timer; 74cc0fdd80SLinus Lüssing unsigned long delay_time; 75cc0fdd80SLinus Lüssing }; 76dc4eb53aSLinus Lüssing 77dc4eb53aSLinus Lüssing /* selected querier */ 78dc4eb53aSLinus Lüssing struct bridge_mcast_querier { 79dc4eb53aSLinus Lüssing struct br_ip addr; 802cd41431SLinus Lüssing struct net_bridge_port __rcu *port; 81dc4eb53aSLinus Lüssing }; 821080ab95SNikolay Aleksandrov 831080ab95SNikolay Aleksandrov /* IGMP/MLD statistics */ 841080ab95SNikolay Aleksandrov struct bridge_mcast_stats { 851080ab95SNikolay Aleksandrov struct br_mcast_stats mstats; 861080ab95SNikolay Aleksandrov struct u64_stats_sync syncp; 871080ab95SNikolay Aleksandrov }; 88cc0fdd80SLinus Lüssing #endif 89cc0fdd80SLinus Lüssing 906dada9b1SNikolay Aleksandrov struct br_vlan_stats { 916dada9b1SNikolay Aleksandrov u64 rx_bytes; 926dada9b1SNikolay Aleksandrov u64 rx_packets; 936dada9b1SNikolay Aleksandrov u64 tx_bytes; 946dada9b1SNikolay Aleksandrov u64 tx_packets; 956dada9b1SNikolay Aleksandrov struct u64_stats_sync syncp; 966dada9b1SNikolay Aleksandrov }; 976dada9b1SNikolay Aleksandrov 98efa5356bSRoopa Prabhu struct br_tunnel_info { 99efa5356bSRoopa Prabhu __be64 tunnel_id; 100efa5356bSRoopa Prabhu struct metadata_dst *tunnel_dst; 101efa5356bSRoopa Prabhu }; 102efa5356bSRoopa Prabhu 1039d332e69SNikolay Aleksandrov /* private vlan flags */ 1049d332e69SNikolay Aleksandrov enum { 1059d332e69SNikolay Aleksandrov BR_VLFLAG_PER_PORT_STATS = BIT(0), 10627973793SIdo Schimmel BR_VLFLAG_ADDED_BY_SWITCHDEV = BIT(1), 1079d332e69SNikolay Aleksandrov }; 1089d332e69SNikolay Aleksandrov 1092594e906SNikolay Aleksandrov /** 1102594e906SNikolay Aleksandrov * struct net_bridge_vlan - per-vlan entry 1112594e906SNikolay Aleksandrov * 1122594e906SNikolay Aleksandrov * @vnode: rhashtable member 1132594e906SNikolay Aleksandrov * @vid: VLAN id 1142594e906SNikolay Aleksandrov * @flags: bridge vlan flags 1159d332e69SNikolay Aleksandrov * @priv_flags: private (in-kernel) bridge vlan flags 116a580c76dSNikolay Aleksandrov * @state: STP state (e.g. blocking, learning, forwarding) 1176dada9b1SNikolay Aleksandrov * @stats: per-cpu VLAN statistics 1182594e906SNikolay Aleksandrov * @br: if MASTER flag set, this points to a bridge struct 1192594e906SNikolay Aleksandrov * @port: if MASTER flag unset, this points to a port struct 1202594e906SNikolay Aleksandrov * @refcnt: if MASTER flag set, this is bumped for each port referencing it 1212594e906SNikolay Aleksandrov * @brvlan: if MASTER flag unset, this points to the global per-VLAN context 1222594e906SNikolay Aleksandrov * for this VLAN entry 1232594e906SNikolay Aleksandrov * @vlist: sorted list of VLAN entries 1242594e906SNikolay Aleksandrov * @rcu: used for entry destruction 1252594e906SNikolay Aleksandrov * 1262594e906SNikolay Aleksandrov * This structure is shared between the global per-VLAN entries contained in 1272594e906SNikolay Aleksandrov * the bridge rhashtable and the local per-port per-VLAN entries contained in 1282594e906SNikolay Aleksandrov * the port's rhashtable. The union entries should be interpreted depending on 1292594e906SNikolay Aleksandrov * the entry flags that are set. 1302594e906SNikolay Aleksandrov */ 1312594e906SNikolay Aleksandrov struct net_bridge_vlan { 1322594e906SNikolay Aleksandrov struct rhash_head vnode; 133efa5356bSRoopa Prabhu struct rhash_head tnode; 1342594e906SNikolay Aleksandrov u16 vid; 1352594e906SNikolay Aleksandrov u16 flags; 1369d332e69SNikolay Aleksandrov u16 priv_flags; 137a580c76dSNikolay Aleksandrov u8 state; 1386dada9b1SNikolay Aleksandrov struct br_vlan_stats __percpu *stats; 139243a2e63SVlad Yasevich union { 140243a2e63SVlad Yasevich struct net_bridge *br; 1412594e906SNikolay Aleksandrov struct net_bridge_port *port; 1422594e906SNikolay Aleksandrov }; 1432594e906SNikolay Aleksandrov union { 14425127759SReshetova, Elena refcount_t refcnt; 1452594e906SNikolay Aleksandrov struct net_bridge_vlan *brvlan; 1462594e906SNikolay Aleksandrov }; 147efa5356bSRoopa Prabhu 148efa5356bSRoopa Prabhu struct br_tunnel_info tinfo; 149efa5356bSRoopa Prabhu 1502594e906SNikolay Aleksandrov struct list_head vlist; 1512594e906SNikolay Aleksandrov 152243a2e63SVlad Yasevich struct rcu_head rcu; 1532594e906SNikolay Aleksandrov }; 1542594e906SNikolay Aleksandrov 1552594e906SNikolay Aleksandrov /** 1562594e906SNikolay Aleksandrov * struct net_bridge_vlan_group 1572594e906SNikolay Aleksandrov * 1582594e906SNikolay Aleksandrov * @vlan_hash: VLAN entry rhashtable 1592594e906SNikolay Aleksandrov * @vlan_list: sorted VLAN entry list 1602594e906SNikolay Aleksandrov * @num_vlans: number of total VLAN entries 16177751ee8SNikolay Aleksandrov * @pvid: PVID VLAN id 162a580c76dSNikolay Aleksandrov * @pvid_state: PVID's STP state (e.g. forwarding, learning, blocking) 1632594e906SNikolay Aleksandrov * 1642594e906SNikolay Aleksandrov * IMPORTANT: Be careful when checking if there're VLAN entries using list 1652594e906SNikolay Aleksandrov * primitives because the bridge can have entries in its list which 1662594e906SNikolay Aleksandrov * are just for global context but not for filtering, i.e. they have 1672594e906SNikolay Aleksandrov * the master flag set but not the brentry flag. If you have to check 1682594e906SNikolay Aleksandrov * if there're "real" entries in the bridge please test @num_vlans 1692594e906SNikolay Aleksandrov */ 1702594e906SNikolay Aleksandrov struct net_bridge_vlan_group { 1712594e906SNikolay Aleksandrov struct rhashtable vlan_hash; 172efa5356bSRoopa Prabhu struct rhashtable tunnel_hash; 1732594e906SNikolay Aleksandrov struct list_head vlan_list; 1746cbdceebSVlad Yasevich u16 num_vlans; 17577751ee8SNikolay Aleksandrov u16 pvid; 176a580c76dSNikolay Aleksandrov u8 pvid_state; 177243a2e63SVlad Yasevich }; 178243a2e63SVlad Yasevich 1796869c3b0SNikolay Aleksandrov /* bridge fdb flags */ 1806869c3b0SNikolay Aleksandrov enum { 1816869c3b0SNikolay Aleksandrov BR_FDB_LOCAL, 18229e63fffSNikolay Aleksandrov BR_FDB_STATIC, 183e0458d9aSNikolay Aleksandrov BR_FDB_STICKY, 184ac3ca6afSNikolay Aleksandrov BR_FDB_ADDED_BY_USER, 185b5cd9f7cSNikolay Aleksandrov BR_FDB_ADDED_BY_EXT_LEARN, 186d38c6e3dSNikolay Aleksandrov BR_FDB_OFFLOADED, 1876869c3b0SNikolay Aleksandrov }; 1886869c3b0SNikolay Aleksandrov 189eb793583SNikolay Aleksandrov struct net_bridge_fdb_key { 190eb793583SNikolay Aleksandrov mac_addr addr; 191eb793583SNikolay Aleksandrov u16 vlan_id; 192eb793583SNikolay Aleksandrov }; 193eb793583SNikolay Aleksandrov 1941214628cSNikolay Aleksandrov struct net_bridge_fdb_entry { 195eb793583SNikolay Aleksandrov struct rhash_head rhnode; 1961da177e4SLinus Torvalds struct net_bridge_port *dst; 1971da177e4SLinus Torvalds 198eb793583SNikolay Aleksandrov struct net_bridge_fdb_key key; 199eb793583SNikolay Aleksandrov struct hlist_node fdb_node; 2006869c3b0SNikolay Aleksandrov unsigned long flags; 2011214628cSNikolay Aleksandrov 2021214628cSNikolay Aleksandrov /* write-heavy members should not affect lookups */ 2031214628cSNikolay Aleksandrov unsigned long updated ____cacheline_aligned_in_smp; 2041214628cSNikolay Aleksandrov unsigned long used; 2051214628cSNikolay Aleksandrov 206b22fbf22SNikolay Aleksandrov struct rcu_head rcu; 2071da177e4SLinus Torvalds }; 2081da177e4SLinus Torvalds 2099d06b6d8SElad Raz #define MDB_PG_FLAGS_PERMANENT BIT(0) 2109d06b6d8SElad Raz #define MDB_PG_FLAGS_OFFLOAD BIT(1) 2113247b272SNikolay Aleksandrov #define MDB_PG_FLAGS_FAST_LEAVE BIT(2) 2129d06b6d8SElad Raz 213eb1d1641SHerbert Xu struct net_bridge_port_group { 214eb1d1641SHerbert Xu struct net_bridge_port *port; 215e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 216eb1d1641SHerbert Xu struct hlist_node mglist; 217eb1d1641SHerbert Xu struct rcu_head rcu; 218eb1d1641SHerbert Xu struct timer_list timer; 2198ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 2209d06b6d8SElad Raz unsigned char flags; 2216db6f0eaSFelix Fietkau unsigned char eth_addr[ETH_ALEN]; 222eb1d1641SHerbert Xu }; 223eb1d1641SHerbert Xu 2241c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_entry { 22519e3a9c9SNikolay Aleksandrov struct rhash_head rhnode; 226eb1d1641SHerbert Xu struct net_bridge *br; 227e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 228eb1d1641SHerbert Xu struct rcu_head rcu; 229eb1d1641SHerbert Xu struct timer_list timer; 2308ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 231ff0fd34eSAndrew Lunn bool host_joined; 23219e3a9c9SNikolay Aleksandrov struct hlist_node mdb_node; 233eb1d1641SHerbert Xu }; 234eb1d1641SHerbert Xu 2351f90c7f3SNikolay Aleksandrov struct net_bridge_port { 2361da177e4SLinus Torvalds struct net_bridge *br; 2371da177e4SLinus Torvalds struct net_device *dev; 2381da177e4SLinus Torvalds struct list_head list; 2391da177e4SLinus Torvalds 2401f90c7f3SNikolay Aleksandrov unsigned long flags; 2411f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 2421f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 2431f90c7f3SNikolay Aleksandrov #endif 2442756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 2451f90c7f3SNikolay Aleksandrov 2461da177e4SLinus Torvalds /* STP */ 2471da177e4SLinus Torvalds u8 priority; 2481da177e4SLinus Torvalds u8 state; 2491da177e4SLinus Torvalds u16 port_no; 2501da177e4SLinus Torvalds unsigned char topology_change_ack; 2511da177e4SLinus Torvalds unsigned char config_pending; 2521da177e4SLinus Torvalds port_id port_id; 2531da177e4SLinus Torvalds port_id designated_port; 2541da177e4SLinus Torvalds bridge_id designated_root; 2551da177e4SLinus Torvalds bridge_id designated_bridge; 2561da177e4SLinus Torvalds u32 path_cost; 2571da177e4SLinus Torvalds u32 designated_cost; 2580c03150eSstephen hemminger unsigned long designated_age; 2591da177e4SLinus Torvalds 2601da177e4SLinus Torvalds struct timer_list forward_delay_timer; 2611da177e4SLinus Torvalds struct timer_list hold_timer; 2621da177e4SLinus Torvalds struct timer_list message_age_timer; 2631da177e4SLinus Torvalds struct kobject kobj; 2641da177e4SLinus Torvalds struct rcu_head rcu; 2653982d3d2SFischer, Anna 266eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 26790010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 268cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 26990010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 270cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 271eb1d1641SHerbert Xu unsigned char multicast_router; 2721080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 273eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 274eb1d1641SHerbert Xu struct hlist_head mglist; 275eb1d1641SHerbert Xu struct hlist_node rlist; 276eb1d1641SHerbert Xu #endif 277e0f43752SSimon Arlott 278e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 279e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 280e0f43752SSimon Arlott #endif 28191d2c34aSHerbert Xu 28291d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 28391d2c34aSHerbert Xu struct netpoll *np; 28491d2c34aSHerbert Xu #endif 2856bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 2866bc506b4SIdo Schimmel int offload_fwd_mark; 2876bc506b4SIdo Schimmel #endif 2885af48b59SNikolay Aleksandrov u16 group_fwd_mask; 2892756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 290de179966SVivien Didelot 291de179966SVivien Didelot struct bridge_stp_xstats stp_xstats; 2921da177e4SLinus Torvalds }; 2931da177e4SLinus Torvalds 294705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 295705e0deaSTyler Hicks 296e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 297f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 298e028e4b8SVlad Yasevich 299b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 300b5ed54e9Sstephen hemminger { 301716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 302b5ed54e9Sstephen hemminger } 303b5ed54e9Sstephen hemminger 3041fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 305b5ed54e9Sstephen hemminger { 30635f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 307ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 308b5ed54e9Sstephen hemminger } 309b5ed54e9Sstephen hemminger 3100baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 3110baa10ffSArkadi Sharshevsky { 31235f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 3130baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3140baa10ffSArkadi Sharshevsky } 3150baa10ffSArkadi Sharshevsky 316ae75767eSNikolay Aleksandrov enum net_bridge_opts { 317ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 318ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 3198df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 3208df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 3218df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 322be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 32313cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 324675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 325675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 326675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 327675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 328c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 3293341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 3309163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 33170e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 3329c0ec2e7SMike Manning BROPT_VLAN_BRIDGE_BINDING, 333ae75767eSNikolay Aleksandrov }; 334ae75767eSNikolay Aleksandrov 3351f90c7f3SNikolay Aleksandrov struct net_bridge { 3361da177e4SLinus Torvalds spinlock_t lock; 3371f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 3381da177e4SLinus Torvalds struct list_head port_list; 3391da177e4SLinus Torvalds struct net_device *dev; 3408f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 341ae75767eSNikolay Aleksandrov unsigned long options; 3421f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3431f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3441f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3451f90c7f3SNikolay Aleksandrov u16 default_pvid; 3461f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3471f90c7f3SNikolay Aleksandrov #endif 3481f90c7f3SNikolay Aleksandrov 349eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 35034666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 351efb6de9bSBernhard Thaler union { 3524adf0af6SSimon Wunderlich struct rtable fake_rtable; 353efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 354efb6de9bSBernhard Thaler }; 3554adf0af6SSimon Wunderlich #endif 356515853ccSstephen hemminger u16 group_fwd_mask; 357f2808d22SToshiaki Makita u16 group_fwd_mask_required; 358515853ccSstephen hemminger 3591da177e4SLinus Torvalds /* STP */ 3601da177e4SLinus Torvalds bridge_id designated_root; 3611da177e4SLinus Torvalds bridge_id bridge_id; 3621f90c7f3SNikolay Aleksandrov unsigned char topology_change; 3631f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 3641f90c7f3SNikolay Aleksandrov u16 root_port; 3651da177e4SLinus Torvalds unsigned long max_age; 3661da177e4SLinus Torvalds unsigned long hello_time; 3671da177e4SLinus Torvalds unsigned long forward_delay; 3681da177e4SLinus Torvalds unsigned long ageing_time; 36934d8acd8SVivien Didelot unsigned long bridge_max_age; 3701da177e4SLinus Torvalds unsigned long bridge_hello_time; 3711da177e4SLinus Torvalds unsigned long bridge_forward_delay; 37234d8acd8SVivien Didelot unsigned long bridge_ageing_time; 37335750b0bSNikolay Aleksandrov u32 root_path_cost; 3741da177e4SLinus Torvalds 375fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 3769cde0708SStephen Hemminger 3779cde0708SStephen Hemminger enum { 3789cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 3799cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 3809cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 3819cde0708SStephen Hemminger } stp_enabled; 3829cde0708SStephen Hemminger 383eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 384eb1d1641SHerbert Xu 385eb1d1641SHerbert Xu u32 hash_max; 386eb1d1641SHerbert Xu 387eb1d1641SHerbert Xu u32 multicast_last_member_count; 388eb1d1641SHerbert Xu u32 multicast_startup_query_count; 389eb1d1641SHerbert Xu 3905e923585SNikolay Aleksandrov u8 multicast_igmp_version; 391675779adSNikolay Aleksandrov u8 multicast_router; 392675779adSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 393675779adSNikolay Aleksandrov u8 multicast_mld_version; 394675779adSNikolay Aleksandrov #endif 39535750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 396eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 397eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 398eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 399eb1d1641SHerbert Xu unsigned long multicast_query_interval; 400eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 401eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 402eb1d1641SHerbert Xu 40319e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 40419e3a9c9SNikolay Aleksandrov 40519e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 406eb1d1641SHerbert Xu struct hlist_head router_list; 407eb1d1641SHerbert Xu 408eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 40990010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 41090010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 411dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 4121080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 413cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 41490010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 41590010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 416dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 417cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 418eb1d1641SHerbert Xu #endif 419eb1d1641SHerbert Xu 4201da177e4SLinus Torvalds struct timer_list hello_timer; 4211da177e4SLinus Torvalds struct timer_list tcn_timer; 4221da177e4SLinus Torvalds struct timer_list topology_change_timer; 423f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 42443b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 425e028e4b8SVlad Yasevich u32 auto_cnt; 4266bc506b4SIdo Schimmel 4276bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4286bc506b4SIdo Schimmel int offload_fwd_mark; 4296bc506b4SIdo Schimmel #endif 430eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4314b8d7d4cSHoratiu Vultur 4324b8d7d4cSHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 4334b8d7d4cSHoratiu Vultur struct list_head __rcu mrp_list; 4344b8d7d4cSHoratiu Vultur #endif 4351da177e4SLinus Torvalds }; 4361da177e4SLinus Torvalds 43768b7c895SHerbert Xu struct br_input_skb_cb { 43868b7c895SHerbert Xu struct net_device *brdev; 43993fdd47eSHerbert Xu 4403c171f49SPablo Neira Ayuso u16 frag_max_size; 44132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 442f12064d1SFlorian Westphal u8 igmp; 443f12064d1SFlorian Westphal u8 mrouters_only:1; 44432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 445f12064d1SFlorian Westphal u8 proxyarp_replied:1; 446f12064d1SFlorian Westphal u8 src_port_isolated:1; 44720adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 448f12064d1SFlorian Westphal u8 vlan_filtered:1; 44920adfa1aSVlad Yasevich #endif 450223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 451223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 452223fd0adSFlorian Westphal #endif 4536bc506b4SIdo Schimmel 4546bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4556bc506b4SIdo Schimmel int offload_fwd_mark; 4566bc506b4SIdo Schimmel #endif 45768b7c895SHerbert Xu }; 45868b7c895SHerbert Xu 45968b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 46068b7c895SHerbert Xu 46132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 46232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 46332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 46432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 46532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 46632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 46728a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 46828a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 46928a16c97Sstephen hemminger 47028a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 47128a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 47228a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 47328a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 47428a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 47528a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 47628a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 47728a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 47828a16c97Sstephen hemminger 47928a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 48028a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 48128a16c97Sstephen hemminger 4821da177e4SLinus Torvalds /* called under bridge lock */ 4831da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 4841da177e4SLinus Torvalds { 4851da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 4861da177e4SLinus Torvalds } 4871da177e4SLinus Torvalds 4882594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 4892594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 4902594e906SNikolay Aleksandrov { 4912594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 4922594e906SNikolay Aleksandrov } 4932594e906SNikolay Aleksandrov 4942594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 4952594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 4962594e906SNikolay Aleksandrov { 4972594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 4982594e906SNikolay Aleksandrov } 4992594e906SNikolay Aleksandrov 5006be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 5012594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 5022594e906SNikolay Aleksandrov { 5032594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 5042594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 5052594e906SNikolay Aleksandrov return true; 5062594e906SNikolay Aleksandrov else 5072594e906SNikolay Aleksandrov return false; 5082594e906SNikolay Aleksandrov } 5092594e906SNikolay Aleksandrov 5102594e906SNikolay Aleksandrov return true; 5112594e906SNikolay Aleksandrov } 5122594e906SNikolay Aleksandrov 5135d1fcaf3SNikolay Aleksandrov static inline bool nbp_state_should_learn(const struct net_bridge_port *p) 5145d1fcaf3SNikolay Aleksandrov { 5155d1fcaf3SNikolay Aleksandrov return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; 5165d1fcaf3SNikolay Aleksandrov } 5175d1fcaf3SNikolay Aleksandrov 5188f4cc940SNikolay Aleksandrov static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack) 5195a46facbSNikolay Aleksandrov { 5208f4cc940SNikolay Aleksandrov bool ret = vid > 0 && vid < VLAN_VID_MASK; 5218f4cc940SNikolay Aleksandrov 5228f4cc940SNikolay Aleksandrov if (!ret) 5238f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid"); 5248f4cc940SNikolay Aleksandrov 5258f4cc940SNikolay Aleksandrov return ret; 5265a46facbSNikolay Aleksandrov } 5275a46facbSNikolay Aleksandrov 5285a46facbSNikolay Aleksandrov static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, 5298f4cc940SNikolay Aleksandrov const struct bridge_vlan_info *last, 5308f4cc940SNikolay Aleksandrov struct netlink_ext_ack *extack) 5315a46facbSNikolay Aleksandrov { 5325a46facbSNikolay Aleksandrov /* pvid flag is not allowed in ranges */ 5338f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_PVID) { 5348f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range"); 5355a46facbSNikolay Aleksandrov return false; 5368f4cc940SNikolay Aleksandrov } 5375a46facbSNikolay Aleksandrov 5385a46facbSNikolay Aleksandrov /* when cur is the range end, check if: 5395a46facbSNikolay Aleksandrov * - it has range start flag 5405a46facbSNikolay Aleksandrov * - range ids are invalid (end is equal to or before start) 5415a46facbSNikolay Aleksandrov */ 5425a46facbSNikolay Aleksandrov if (last) { 5438f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { 5448f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one"); 5455a46facbSNikolay Aleksandrov return false; 5468f4cc940SNikolay Aleksandrov } else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) { 5478f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing"); 5488f4cc940SNikolay Aleksandrov return false; 5498f4cc940SNikolay Aleksandrov } else if (cur->vid <= last->vid) { 5508f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); 5518f4cc940SNikolay Aleksandrov return false; 5528f4cc940SNikolay Aleksandrov } 5538f4cc940SNikolay Aleksandrov } 5548f4cc940SNikolay Aleksandrov 5558f4cc940SNikolay Aleksandrov /* check for required range flags */ 5568f4cc940SNikolay Aleksandrov if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 5578f4cc940SNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END))) { 5588f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing"); 5595a46facbSNikolay Aleksandrov return false; 5605a46facbSNikolay Aleksandrov } 5615a46facbSNikolay Aleksandrov 5625a46facbSNikolay Aleksandrov return true; 5635a46facbSNikolay Aleksandrov } 5645a46facbSNikolay Aleksandrov 565f545923bSNikolay Aleksandrov static inline int br_afspec_cmd_to_rtm(int cmd) 566f545923bSNikolay Aleksandrov { 567f545923bSNikolay Aleksandrov switch (cmd) { 568f545923bSNikolay Aleksandrov case RTM_SETLINK: 569f545923bSNikolay Aleksandrov return RTM_NEWVLAN; 570f545923bSNikolay Aleksandrov case RTM_DELLINK: 571f545923bSNikolay Aleksandrov return RTM_DELVLAN; 572f545923bSNikolay Aleksandrov } 573f545923bSNikolay Aleksandrov 574f545923bSNikolay Aleksandrov return 0; 575f545923bSNikolay Aleksandrov } 576f545923bSNikolay Aleksandrov 577ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 578ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 579ae75767eSNikolay Aleksandrov { 580ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 581ae75767eSNikolay Aleksandrov } 582ae75767eSNikolay Aleksandrov 583a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 584a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 585a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 586a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 587a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 588a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 589a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 590a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 591ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 592ae75767eSNikolay Aleksandrov 5931da177e4SLinus Torvalds /* br_device.c */ 594348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 595348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 596348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 597cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 59891d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 59991d2c34aSHerbert Xu struct sk_buff *skb) 60091d2c34aSHerbert Xu { 60191d2c34aSHerbert Xu struct netpoll *np = p->np; 60291d2c34aSHerbert Xu 60391d2c34aSHerbert Xu if (np) 60491d2c34aSHerbert Xu netpoll_send_skb(np, skb); 60591d2c34aSHerbert Xu } 60691d2c34aSHerbert Xu 607a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 608348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 60991d2c34aSHerbert Xu #else 6109f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 61191d2c34aSHerbert Xu struct sk_buff *skb) 61291d2c34aSHerbert Xu { 61391d2c34aSHerbert Xu } 61491d2c34aSHerbert Xu 615a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 61691d2c34aSHerbert Xu { 61791d2c34aSHerbert Xu return 0; 61891d2c34aSHerbert Xu } 61991d2c34aSHerbert Xu 62091d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 62191d2c34aSHerbert Xu { 62291d2c34aSHerbert Xu } 623cfb478daSstephen hemminger #endif 6241da177e4SLinus Torvalds 6251da177e4SLinus Torvalds /* br_fdb.c */ 626348662a1SJoe Perches int br_fdb_init(void); 627348662a1SJoe Perches void br_fdb_fini(void); 628eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 629eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 630348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 631424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 632424bb9c9SToshiaki Makita const struct net_bridge_port *p, 633424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 634348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 635348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 636f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 637348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 6381ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 639bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 640bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 641bfd0aeacSNikolay Aleksandrov __u16 vid); 642348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 643348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 644348662a1SJoe Perches unsigned long off); 645348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 646348662a1SJoe Perches const unsigned char *addr, u16 vid); 647348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 648be0c5677SNikolay Aleksandrov const unsigned char *addr, u16 vid, unsigned long flags); 64977162022SJohn Fastabend 650348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 651f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 652348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 65387b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 65487b0984eSPetr Machata struct netlink_ext_ack *extack); 655348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 656d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 65747674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 65847674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 65947674562SRoopa Prabhu struct netlink_ext_ack *extack); 6608db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 6618db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 6623aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 663161d82deSPetr Machata const unsigned char *addr, u16 vid, 664161d82deSPetr Machata bool swdev_notify); 6653aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 666161d82deSPetr Machata const unsigned char *addr, u16 vid, 667161d82deSPetr Machata bool swdev_notify); 6689fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 669e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 6701da177e4SLinus Torvalds 6711da177e4SLinus Torvalds /* br_forward.c */ 6728addd5e7SNikolay Aleksandrov enum br_pkt_type { 6738addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 6748addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 6758addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 6768addd5e7SNikolay Aleksandrov }; 6770c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 678b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 67937b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 6800c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 68137b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 6828addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 6831da177e4SLinus Torvalds 6847d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 6857d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 6867d850abdSNikolay Aleksandrov const struct sk_buff *skb) 6877d850abdSNikolay Aleksandrov { 6887d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 6897d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 6907d850abdSNikolay Aleksandrov } 6917d850abdSNikolay Aleksandrov 6921da177e4SLinus Torvalds /* br_if.c */ 693faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 694348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 695348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 696ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 697ca752be0SDavid Ahern struct netlink_ext_ack *extack); 698348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 699804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 700348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 701c8f44affSMichał Mirosław netdev_features_t features); 702e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 7032796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 7042756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 7051da177e4SLinus Torvalds 7061da177e4SLinus Torvalds /* br_input.c */ 7070c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 708348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 7091da177e4SLinus Torvalds 710859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 711859828c0SJiri Pirko { 712859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 713859828c0SJiri Pirko } 714859828c0SJiri Pirko 7154d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 7164d4fd361SPetr Machata { 7174d4fd361SPetr Machata return rcu_dereference_rtnl(dev->rx_handler) == br_handle_frame; 7184d4fd361SPetr Machata } 7194d4fd361SPetr Machata 720859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 721859828c0SJiri Pirko { 722859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 723859828c0SJiri Pirko } 724859828c0SJiri Pirko 7254d4fd361SPetr Machata static inline struct net_bridge_port * 7264d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 7274d4fd361SPetr Machata { 7284d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 7294d4fd361SPetr Machata } 7304d4fd361SPetr Machata 7311da177e4SLinus Torvalds /* br_ioctl.c */ 732348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 733348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 734348662a1SJoe Perches void __user *arg); 7351da177e4SLinus Torvalds 736eb1d1641SHerbert Xu /* br_multicast.c */ 737eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 738348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 739fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 740348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 741eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 7421080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 743348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 744348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 745348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 746348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 747348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 748348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 749e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 75037b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 75137b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 752348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 753348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 754348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 755348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 756348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 7575e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 758aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 759aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 760aa2ae3e7SNikolay Aleksandrov #endif 761348662a1SJoe Perches struct net_bridge_mdb_entry * 76219e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 763348662a1SJoe Perches struct net_bridge_mdb_entry * 76419e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 765348662a1SJoe Perches struct net_bridge_port_group * 766348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 767762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 7686db6f0eaSFelix Fietkau unsigned char flags, const unsigned char *src); 76919e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 77019e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 77145ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 77245ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 773949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 774949f1e39SSatish Ashok int type); 7751080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 776a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 7771080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 778b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 7791080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 7801080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 7811080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 78219e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 78319e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 7841bc844eeSNikolay Aleksandrov void br_multicast_host_join(struct net_bridge_mdb_entry *mp, bool notify); 7851bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 78685b35269SSridhar Samudrala 787cfd56754SCong Wang #define mlock_dereference(X, br) \ 788cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 789cfd56754SCong Wang 79085b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 79185b35269SSridhar Samudrala { 79285b35269SSridhar Samudrala return br->multicast_router == 2 || 79385b35269SSridhar Samudrala (br->multicast_router == 1 && 79485b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 79585b35269SSridhar Samudrala } 796b00589afSLinus Lüssing 797cc0fdd80SLinus Lüssing static inline bool 798cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 7990888d5f3Sdaniel struct bridge_mcast_other_query *querier, 8000888d5f3Sdaniel const bool is_ipv6) 801b00589afSLinus Lüssing { 8020888d5f3Sdaniel bool own_querier_enabled; 8030888d5f3Sdaniel 804675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 805675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 8060888d5f3Sdaniel own_querier_enabled = false; 8070888d5f3Sdaniel else 8080888d5f3Sdaniel own_querier_enabled = true; 8090888d5f3Sdaniel } else { 8100888d5f3Sdaniel own_querier_enabled = false; 8110888d5f3Sdaniel } 8120888d5f3Sdaniel 813cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 8140888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 815cc0fdd80SLinus Lüssing } 816cc0fdd80SLinus Lüssing 817cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 818cc0fdd80SLinus Lüssing struct ethhdr *eth) 819cc0fdd80SLinus Lüssing { 820cc0fdd80SLinus Lüssing switch (eth->h_proto) { 821cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 8220888d5f3Sdaniel return __br_multicast_querier_exists(br, 8230888d5f3Sdaniel &br->ip4_other_query, false); 824cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 825cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 8260888d5f3Sdaniel return __br_multicast_querier_exists(br, 8270888d5f3Sdaniel &br->ip6_other_query, true); 828cc0fdd80SLinus Lüssing #endif 829cc0fdd80SLinus Lüssing default: 830cc0fdd80SLinus Lüssing return false; 831cc0fdd80SLinus Lüssing } 832b00589afSLinus Lüssing } 8331080ab95SNikolay Aleksandrov 8341080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 8351080ab95SNikolay Aleksandrov { 8361080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 8371080ab95SNikolay Aleksandrov } 838eb1d1641SHerbert Xu #else 839eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 840eb1d1641SHerbert Xu struct net_bridge_port *port, 84106499098SVlad Yasevich struct sk_buff *skb, 84206499098SVlad Yasevich u16 vid) 843eb1d1641SHerbert Xu { 844eb1d1641SHerbert Xu return 0; 845eb1d1641SHerbert Xu } 846eb1d1641SHerbert Xu 847eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 848fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 849eb1d1641SHerbert Xu { 850eb1d1641SHerbert Xu return NULL; 851eb1d1641SHerbert Xu } 852eb1d1641SHerbert Xu 8531080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 854eb1d1641SHerbert Xu { 8551080ab95SNikolay Aleksandrov return 0; 856eb1d1641SHerbert Xu } 857eb1d1641SHerbert Xu 858eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 859eb1d1641SHerbert Xu { 860eb1d1641SHerbert Xu } 861eb1d1641SHerbert Xu 862eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 863eb1d1641SHerbert Xu { 864eb1d1641SHerbert Xu } 865eb1d1641SHerbert Xu 866eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 867eb1d1641SHerbert Xu { 868eb1d1641SHerbert Xu } 869eb1d1641SHerbert Xu 870eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 871eb1d1641SHerbert Xu { 872eb1d1641SHerbert Xu } 873eb1d1641SHerbert Xu 874eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 875eb1d1641SHerbert Xu { 876eb1d1641SHerbert Xu } 877eb1d1641SHerbert Xu 878eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 879eb1d1641SHerbert Xu { 880eb1d1641SHerbert Xu } 8815cb5e947SHerbert Xu 882a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 883a7ce45a7SNikolay Aleksandrov { 884a7ce45a7SNikolay Aleksandrov } 885a7ce45a7SNikolay Aleksandrov 88637b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 88737b090e6SNikolay Aleksandrov struct sk_buff *skb, 88837b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 8895cb5e947SHerbert Xu { 8905cb5e947SHerbert Xu } 8915cb5e947SHerbert Xu 892eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 893eb1d1641SHerbert Xu { 89403aaa9e2SGustavo A. R. Silva return false; 895eb1d1641SHerbert Xu } 89637b090e6SNikolay Aleksandrov 897cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 898cc0fdd80SLinus Lüssing struct ethhdr *eth) 899b00589afSLinus Lüssing { 900b00589afSLinus Lüssing return false; 901b00589afSLinus Lüssing } 90237b090e6SNikolay Aleksandrov 903fdb184d1SRami Rosen static inline void br_mdb_init(void) 904fdb184d1SRami Rosen { 905fdb184d1SRami Rosen } 90637b090e6SNikolay Aleksandrov 907fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 908fdb184d1SRami Rosen { 909fdb184d1SRami Rosen } 9101080ab95SNikolay Aleksandrov 91119e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 91219e3a9c9SNikolay Aleksandrov { 91319e3a9c9SNikolay Aleksandrov return 0; 91419e3a9c9SNikolay Aleksandrov } 91519e3a9c9SNikolay Aleksandrov 91619e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 91719e3a9c9SNikolay Aleksandrov { 91819e3a9c9SNikolay Aleksandrov } 91919e3a9c9SNikolay Aleksandrov 9201080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 9211080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 922a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 923a65056ecSNikolay Aleksandrov u8 type, u8 dir) 9241080ab95SNikolay Aleksandrov { 9251080ab95SNikolay Aleksandrov } 9261080ab95SNikolay Aleksandrov 9271080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 9281080ab95SNikolay Aleksandrov { 9291080ab95SNikolay Aleksandrov return 0; 9301080ab95SNikolay Aleksandrov } 9311080ab95SNikolay Aleksandrov 932b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 933b6fe0440SIdo Schimmel { 934b6fe0440SIdo Schimmel } 935b6fe0440SIdo Schimmel 9361080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 9371080ab95SNikolay Aleksandrov { 9381080ab95SNikolay Aleksandrov return 0; 9391080ab95SNikolay Aleksandrov } 94085b35269SSridhar Samudrala #endif 941eb1d1641SHerbert Xu 942243a2e63SVlad Yasevich /* br_vlan.c */ 943243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 94477751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 94577751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 946a580c76dSNikolay Aleksandrov u16 *vid, u8 *state); 94777751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 94885f46c6bSVlad Yasevich const struct sk_buff *skb); 949e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 950348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 95111538d03SRoopa Prabhu const struct net_bridge_port *port, 9522594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 95378851988SVlad Yasevich struct sk_buff *skb); 954f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 955169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 956348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 957348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 9582594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 959204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 960a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 961348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 962d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 963204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 9646dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 9659163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 9665be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 96796a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 968169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 969169327d5SPetr Machata struct netlink_ext_ack *extack); 970f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 971169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 972348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 973348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 974169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 9752594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 976a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 977a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 9789c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 979091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 9809c0ec2e7SMike Manning void *ptr); 9818dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void); 9828dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void); 983cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 984cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 985cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 986cf5bddb9SNikolay Aleksandrov int cmd); 987a5d29ae2SNikolay Aleksandrov bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 988a5d29ae2SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 989a37b85c9SVlad Yasevich 9902594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 991a37b85c9SVlad Yasevich const struct net_bridge *br) 992a37b85c9SVlad Yasevich { 993907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 994a37b85c9SVlad Yasevich } 995a37b85c9SVlad Yasevich 9962594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 997a37b85c9SVlad Yasevich const struct net_bridge_port *p) 998a37b85c9SVlad Yasevich { 999907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 1000907b1e6eSNikolay Aleksandrov } 1001907b1e6eSNikolay Aleksandrov 1002907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1003907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1004907b1e6eSNikolay Aleksandrov { 1005907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 1006907b1e6eSNikolay Aleksandrov } 1007907b1e6eSNikolay Aleksandrov 1008907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1009907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1010907b1e6eSNikolay Aleksandrov { 1011907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 1012a37b85c9SVlad Yasevich } 1013a37b85c9SVlad Yasevich 1014a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 1015a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 1016a37b85c9SVlad Yasevich */ 1017a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 1018a37b85c9SVlad Yasevich { 1019a37b85c9SVlad Yasevich int err = 0; 1020a37b85c9SVlad Yasevich 10212594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 10225978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 10232594e906SNikolay Aleksandrov } else { 1024a37b85c9SVlad Yasevich *vid = 0; 1025a37b85c9SVlad Yasevich err = -EINVAL; 1026a37b85c9SVlad Yasevich } 1027a37b85c9SVlad Yasevich 1028a37b85c9SVlad Yasevich return err; 1029a37b85c9SVlad Yasevich } 103078851988SVlad Yasevich 103177751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 103278851988SVlad Yasevich { 103377751ee8SNikolay Aleksandrov if (!vg) 10345be5a2dfSVlad Yasevich return 0; 10355be5a2dfSVlad Yasevich 103678851988SVlad Yasevich smp_rmb(); 103777751ee8SNikolay Aleksandrov return vg->pvid; 103878851988SVlad Yasevich } 103978851988SVlad Yasevich 10408dcea187SNikolay Aleksandrov static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) 10418dcea187SNikolay Aleksandrov { 10428dcea187SNikolay Aleksandrov return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags; 10438dcea187SNikolay Aleksandrov } 1044243a2e63SVlad Yasevich #else 104577751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 104677751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 10472594e906SNikolay Aleksandrov struct sk_buff *skb, 1048a580c76dSNikolay Aleksandrov u16 *vid, u8 *state) 10492594e906SNikolay Aleksandrov { 10502594e906SNikolay Aleksandrov return true; 10512594e906SNikolay Aleksandrov } 10522594e906SNikolay Aleksandrov 10532594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 105485f46c6bSVlad Yasevich const struct sk_buff *skb) 105585f46c6bSVlad Yasevich { 105685f46c6bSVlad Yasevich return true; 105785f46c6bSVlad Yasevich } 105885f46c6bSVlad Yasevich 1059e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 1060e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 1061e0d7968aSToshiaki Makita { 1062e0d7968aSToshiaki Makita return true; 1063e0d7968aSToshiaki Makita } 1064e0d7968aSToshiaki Makita 106578851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 106611538d03SRoopa Prabhu const struct net_bridge_port *port, 10672594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 106878851988SVlad Yasevich struct sk_buff *skb) 106978851988SVlad Yasevich { 107078851988SVlad Yasevich return skb; 107178851988SVlad Yasevich } 107278851988SVlad Yasevich 1073f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1074169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1075243a2e63SVlad Yasevich { 1076f418af63SNikolay Aleksandrov *changed = false; 1077243a2e63SVlad Yasevich return -EOPNOTSUPP; 1078243a2e63SVlad Yasevich } 1079243a2e63SVlad Yasevich 1080243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 1081243a2e63SVlad Yasevich { 1082243a2e63SVlad Yasevich return -EOPNOTSUPP; 1083243a2e63SVlad Yasevich } 1084243a2e63SVlad Yasevich 1085243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1086243a2e63SVlad Yasevich { 1087243a2e63SVlad Yasevich } 1088243a2e63SVlad Yasevich 1089204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1090204177f3SToshiaki Makita { 1091204177f3SToshiaki Makita } 1092204177f3SToshiaki Makita 10935be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 10948580e211SToshiaki Makita { 10955be5a2dfSVlad Yasevich return 0; 10968580e211SToshiaki Makita } 10978580e211SToshiaki Makita 1098f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1099169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1100243a2e63SVlad Yasevich { 1101f418af63SNikolay Aleksandrov *changed = false; 1102243a2e63SVlad Yasevich return -EOPNOTSUPP; 1103243a2e63SVlad Yasevich } 1104243a2e63SVlad Yasevich 1105243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1106243a2e63SVlad Yasevich { 1107243a2e63SVlad Yasevich return -EOPNOTSUPP; 1108243a2e63SVlad Yasevich } 1109243a2e63SVlad Yasevich 1110243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1111243a2e63SVlad Yasevich { 1112243a2e63SVlad Yasevich } 1113243a2e63SVlad Yasevich 11142594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 11152594e906SNikolay Aleksandrov u16 vid) 1116a37b85c9SVlad Yasevich { 1117a37b85c9SVlad Yasevich return NULL; 1118a37b85c9SVlad Yasevich } 1119bc9a25d2SVlad Yasevich 1120169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1121169327d5SPetr Machata struct netlink_ext_ack *extack) 11225be5a2dfSVlad Yasevich { 11235be5a2dfSVlad Yasevich return 0; 11245be5a2dfSVlad Yasevich } 11255be5a2dfSVlad Yasevich 112678851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1127a37b85c9SVlad Yasevich { 1128a37b85c9SVlad Yasevich return 0; 1129a37b85c9SVlad Yasevich } 11302594e906SNikolay Aleksandrov 113177751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 113278851988SVlad Yasevich { 11333df6bf45SVlad Yasevich return 0; 113478851988SVlad Yasevich } 11352796d0c6SVlad Yasevich 1136a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1137a7854037SNikolay Aleksandrov unsigned long val) 1138a7854037SNikolay Aleksandrov { 1139a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1140a7854037SNikolay Aleksandrov } 11412594e906SNikolay Aleksandrov 11422594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 11432594e906SNikolay Aleksandrov u32 filter_mask) 11442594e906SNikolay Aleksandrov { 11452594e906SNikolay Aleksandrov return 0; 11462594e906SNikolay Aleksandrov } 11472594e906SNikolay Aleksandrov 11482594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 11492594e906SNikolay Aleksandrov const struct net_bridge *br) 11502594e906SNikolay Aleksandrov { 11512594e906SNikolay Aleksandrov return NULL; 11522594e906SNikolay Aleksandrov } 11532594e906SNikolay Aleksandrov 11542594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 11552594e906SNikolay Aleksandrov const struct net_bridge_port *p) 11562594e906SNikolay Aleksandrov { 11572594e906SNikolay Aleksandrov return NULL; 11582594e906SNikolay Aleksandrov } 1159907b1e6eSNikolay Aleksandrov 1160907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1161907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1162907b1e6eSNikolay Aleksandrov { 1163907b1e6eSNikolay Aleksandrov return NULL; 1164907b1e6eSNikolay Aleksandrov } 1165907b1e6eSNikolay Aleksandrov 1166907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1167907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1168907b1e6eSNikolay Aleksandrov { 1169907b1e6eSNikolay Aleksandrov return NULL; 1170907b1e6eSNikolay Aleksandrov } 1171a60c0903SNikolay Aleksandrov 1172a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1173a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1174a60c0903SNikolay Aleksandrov { 1175a60c0903SNikolay Aleksandrov } 11769c0ec2e7SMike Manning 11779c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 11789c0ec2e7SMike Manning unsigned long event) 11799c0ec2e7SMike Manning { 11809c0ec2e7SMike Manning } 11819c0ec2e7SMike Manning 1182091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 11839c0ec2e7SMike Manning unsigned long event, void *ptr) 11849c0ec2e7SMike Manning { 1185091adf9bSNikolay Aleksandrov return 0; 11869c0ec2e7SMike Manning } 11878dcea187SNikolay Aleksandrov 11888dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_init(void) 11898dcea187SNikolay Aleksandrov { 11908dcea187SNikolay Aleksandrov } 11918dcea187SNikolay Aleksandrov 11928dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_uninit(void) 11938dcea187SNikolay Aleksandrov { 11948dcea187SNikolay Aleksandrov } 1195cf5bddb9SNikolay Aleksandrov 1196cf5bddb9SNikolay Aleksandrov static inline void br_vlan_notify(const struct net_bridge *br, 1197cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1198cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1199cf5bddb9SNikolay Aleksandrov int cmd) 1200cf5bddb9SNikolay Aleksandrov { 1201cf5bddb9SNikolay Aleksandrov } 1202243a2e63SVlad Yasevich #endif 1203243a2e63SVlad Yasevich 12047a53e718SNikolay Aleksandrov /* br_vlan_options.c */ 12057a53e718SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 120699f7c5e0SNikolay Aleksandrov bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, 120799f7c5e0SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 12087a53e718SNikolay Aleksandrov bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v); 12097a53e718SNikolay Aleksandrov size_t br_vlan_opts_nl_size(void); 1210a5d29ae2SNikolay Aleksandrov int br_vlan_process_options(const struct net_bridge *br, 1211a5d29ae2SNikolay Aleksandrov const struct net_bridge_port *p, 1212a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_start, 1213a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_end, 1214a5d29ae2SNikolay Aleksandrov struct nlattr **tb, 1215a5d29ae2SNikolay Aleksandrov struct netlink_ext_ack *extack); 1216a580c76dSNikolay Aleksandrov 1217a580c76dSNikolay Aleksandrov /* vlan state manipulation helpers using *_ONCE to annotate lock-free access */ 1218a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v) 1219a580c76dSNikolay Aleksandrov { 1220a580c76dSNikolay Aleksandrov return READ_ONCE(v->state); 1221a580c76dSNikolay Aleksandrov } 1222a580c76dSNikolay Aleksandrov 1223a580c76dSNikolay Aleksandrov static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state) 1224a580c76dSNikolay Aleksandrov { 1225a580c76dSNikolay Aleksandrov WRITE_ONCE(v->state, state); 1226a580c76dSNikolay Aleksandrov } 1227a580c76dSNikolay Aleksandrov 1228a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg) 1229a580c76dSNikolay Aleksandrov { 1230a580c76dSNikolay Aleksandrov return READ_ONCE(vg->pvid_state); 1231a580c76dSNikolay Aleksandrov } 1232a580c76dSNikolay Aleksandrov 1233a580c76dSNikolay Aleksandrov static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg, 1234a580c76dSNikolay Aleksandrov u8 state) 1235a580c76dSNikolay Aleksandrov { 1236a580c76dSNikolay Aleksandrov WRITE_ONCE(vg->pvid_state, state); 1237a580c76dSNikolay Aleksandrov } 1238a580c76dSNikolay Aleksandrov 1239a580c76dSNikolay Aleksandrov /* learn_allow is true at ingress and false at egress */ 1240a580c76dSNikolay Aleksandrov static inline bool br_vlan_state_allowed(u8 state, bool learn_allow) 1241a580c76dSNikolay Aleksandrov { 1242a580c76dSNikolay Aleksandrov switch (state) { 1243a580c76dSNikolay Aleksandrov case BR_STATE_LEARNING: 1244a580c76dSNikolay Aleksandrov return learn_allow; 1245a580c76dSNikolay Aleksandrov case BR_STATE_FORWARDING: 1246a580c76dSNikolay Aleksandrov return true; 1247a580c76dSNikolay Aleksandrov default: 1248a580c76dSNikolay Aleksandrov return false; 1249a580c76dSNikolay Aleksandrov } 1250a580c76dSNikolay Aleksandrov } 12517a53e718SNikolay Aleksandrov #endif 12527a53e718SNikolay Aleksandrov 12531a4ba64dSPablo Neira Ayuso struct nf_br_ops { 12541a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 12551a4ba64dSPablo Neira Ayuso }; 12561a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 12571a4ba64dSPablo Neira Ayuso 12581da177e4SLinus Torvalds /* br_netfilter.c */ 125934666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 126034666d46SPablo Neira Ayuso int br_nf_core_init(void); 126134666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1262348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1263c0909713SStephen Hemminger #else 126434666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 126534666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 12664adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1267c0909713SStephen Hemminger #endif 12681da177e4SLinus Torvalds 12691da177e4SLinus Torvalds /* br_stp.c */ 1270775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1271348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1272348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1273348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 12741da177e4SLinus Torvalds 1275348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1276348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1277348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1278348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 127982dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 12809e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 128114f98f25Sstephen hemminger 128214f98f25Sstephen hemminger 12831da177e4SLinus Torvalds /* br_stp_if.c */ 1284348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1285348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1286419dba8aSHoratiu Vultur int br_stp_set_enabled(struct net_bridge *br, unsigned long val, 1287419dba8aSHoratiu Vultur struct netlink_ext_ack *extack); 1288348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1289348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1290348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1291348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1292348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1293348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1294348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1295348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 12961da177e4SLinus Torvalds 12971da177e4SLinus Torvalds /* br_stp_bpdu.c */ 12987c85fbf0SPatrick McHardy struct stp_proto; 1299348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 13007c85fbf0SPatrick McHardy struct net_device *dev); 13011da177e4SLinus Torvalds 13021da177e4SLinus Torvalds /* br_stp_timer.c */ 1303348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1304348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1305348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 13061da177e4SLinus Torvalds 13071da177e4SLinus Torvalds /* br.c */ 1308e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1309da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1310da678292SMichał Mirosław #endif 13111da177e4SLinus Torvalds 131265369933SHoratiu Vultur /* br_mrp.c */ 131365369933SHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 131465369933SHoratiu Vultur int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 131565369933SHoratiu Vultur struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 131665369933SHoratiu Vultur int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb); 131765369933SHoratiu Vultur bool br_mrp_enabled(struct net_bridge *br); 131865369933SHoratiu Vultur void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p); 131965369933SHoratiu Vultur #else 132065369933SHoratiu Vultur static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 132165369933SHoratiu Vultur struct nlattr *attr, int cmd, 132265369933SHoratiu Vultur struct netlink_ext_ack *extack) 132365369933SHoratiu Vultur { 132465369933SHoratiu Vultur return -EOPNOTSUPP; 132565369933SHoratiu Vultur } 132665369933SHoratiu Vultur 132765369933SHoratiu Vultur static inline int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb) 132865369933SHoratiu Vultur { 132965369933SHoratiu Vultur return 0; 133065369933SHoratiu Vultur } 133165369933SHoratiu Vultur 133265369933SHoratiu Vultur static inline bool br_mrp_enabled(struct net_bridge *br) 133365369933SHoratiu Vultur { 13348741e184SJason Yan return false; 133565369933SHoratiu Vultur } 133665369933SHoratiu Vultur 133765369933SHoratiu Vultur static inline void br_mrp_port_del(struct net_bridge *br, 133865369933SHoratiu Vultur struct net_bridge_port *p) 133965369933SHoratiu Vultur { 134065369933SHoratiu Vultur } 134165369933SHoratiu Vultur #endif 134265369933SHoratiu Vultur 134311dc1f36SStephen Hemminger /* br_netlink.c */ 1344149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1345348662a1SJoe Perches int br_netlink_init(void); 1346348662a1SJoe Perches void br_netlink_fini(void); 134792899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 134892899063SNikolay Aleksandrov const struct net_bridge_port *port); 13492fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 13502fd527b7SPetr Machata struct netlink_ext_ack *extack); 1351add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1352348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 135346c264daSNicolas Dichtel u32 filter_mask, int nlflags); 1354f26b2965SNikolay Aleksandrov int br_process_vlan_info(struct net_bridge *br, 1355f26b2965SNikolay Aleksandrov struct net_bridge_port *p, int cmd, 1356f26b2965SNikolay Aleksandrov struct bridge_vlan_info *vinfo_curr, 1357f26b2965SNikolay Aleksandrov struct bridge_vlan_info **vinfo_last, 1358f26b2965SNikolay Aleksandrov bool *changed, 1359f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack); 136011dc1f36SStephen Hemminger 13611da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 13621da177e4SLinus Torvalds /* br_sysfs_if.c */ 136352cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1364348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1365348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 13661da177e4SLinus Torvalds 13671da177e4SLinus Torvalds /* br_sysfs_br.c */ 1368348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1369348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 13701da177e4SLinus Torvalds 13711da177e4SLinus Torvalds #else 13721da177e4SLinus Torvalds 13730cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 13740cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 13750cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 13760cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 13771da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 13781da177e4SLinus Torvalds 13796bc506b4SIdo Schimmel /* br_switchdev.c */ 13806bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 13816bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 13826bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 13836bc506b4SIdo Schimmel struct sk_buff *skb); 13846bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 13856bc506b4SIdo Schimmel const struct sk_buff *skb); 13863922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 13873922285dSArkadi Sharshevsky unsigned long flags, 13883922285dSArkadi Sharshevsky unsigned long mask); 13896b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 13906b26b51bSArkadi Sharshevsky int type); 1391169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1392169327d5SPetr Machata struct netlink_ext_ack *extack); 1393d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1394f1c2eddfSIdo Schimmel 1395f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1396f1c2eddfSIdo Schimmel { 1397f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1398f1c2eddfSIdo Schimmel } 13996bc506b4SIdo Schimmel #else 14006bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 14016bc506b4SIdo Schimmel { 14026bc506b4SIdo Schimmel return 0; 14036bc506b4SIdo Schimmel } 14046bc506b4SIdo Schimmel 14056bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 14066bc506b4SIdo Schimmel struct sk_buff *skb) 14076bc506b4SIdo Schimmel { 14086bc506b4SIdo Schimmel } 14096bc506b4SIdo Schimmel 14106bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 14116bc506b4SIdo Schimmel const struct sk_buff *skb) 14126bc506b4SIdo Schimmel { 14136bc506b4SIdo Schimmel return true; 14146bc506b4SIdo Schimmel } 14153922285dSArkadi Sharshevsky 14163922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 14173922285dSArkadi Sharshevsky unsigned long flags, 14183922285dSArkadi Sharshevsky unsigned long mask) 14193922285dSArkadi Sharshevsky { 14203922285dSArkadi Sharshevsky return 0; 14213922285dSArkadi Sharshevsky } 14226b26b51bSArkadi Sharshevsky 1423d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1424169327d5SPetr Machata u16 vid, u16 flags, 1425169327d5SPetr Machata struct netlink_ext_ack *extack) 1426d66e4348SPetr Machata { 1427d66e4348SPetr Machata return -EOPNOTSUPP; 1428d66e4348SPetr Machata } 1429d66e4348SPetr Machata 1430d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1431d66e4348SPetr Machata { 1432d66e4348SPetr Machata return -EOPNOTSUPP; 1433d66e4348SPetr Machata } 1434d66e4348SPetr Machata 14356b26b51bSArkadi Sharshevsky static inline void 14366b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 14376b26b51bSArkadi Sharshevsky { 14386b26b51bSArkadi Sharshevsky } 1439f1c2eddfSIdo Schimmel 1440f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1441f1c2eddfSIdo Schimmel { 1442f1c2eddfSIdo Schimmel } 14436bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 14446bc506b4SIdo Schimmel 1445057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1446821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1447057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1448057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1449ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1450ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1451ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 14521da177e4SLinus Torvalds #endif 1453