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) 2169d06b6d8SElad Raz 2178b671779SNikolay Aleksandrov #define PG_SRC_ENT_LIMIT 32 2188b671779SNikolay Aleksandrov 2198b671779SNikolay Aleksandrov #define BR_SGRP_F_DELETE BIT(0) 2208b671779SNikolay Aleksandrov #define BR_SGRP_F_SEND BIT(1) 2218b671779SNikolay Aleksandrov 222e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc { 223e12cec65SNikolay Aleksandrov struct hlist_node gc_node; 224e12cec65SNikolay Aleksandrov void (*destroy)(struct net_bridge_mcast_gc *gc); 225e12cec65SNikolay Aleksandrov }; 226e12cec65SNikolay Aleksandrov 2278b671779SNikolay Aleksandrov struct net_bridge_group_src { 2288b671779SNikolay Aleksandrov struct hlist_node node; 2298b671779SNikolay Aleksandrov 2308b671779SNikolay Aleksandrov struct br_ip addr; 2318b671779SNikolay Aleksandrov struct net_bridge_port_group *pg; 2328b671779SNikolay Aleksandrov u8 flags; 233438ef2d0SNikolay Aleksandrov u8 src_query_rexmit_cnt; 2348b671779SNikolay Aleksandrov struct timer_list timer; 2358b671779SNikolay Aleksandrov 2368b671779SNikolay Aleksandrov struct net_bridge *br; 237e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2388b671779SNikolay Aleksandrov struct rcu_head rcu; 2398b671779SNikolay Aleksandrov }; 2408b671779SNikolay Aleksandrov 241eb1d1641SHerbert Xu struct net_bridge_port_group { 242eb1d1641SHerbert Xu struct net_bridge_port *port; 243e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 2448ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 245206e7323SThomas Martitz unsigned char eth_addr[ETH_ALEN] __aligned(2); 2469d06b6d8SElad Raz unsigned char flags; 2478b671779SNikolay Aleksandrov unsigned char filter_mode; 24842c11ccfSNikolay Aleksandrov unsigned char grp_query_rexmit_cnt; 2498f8cb77eSNikolay Aleksandrov unsigned char rt_protocol; 2506ec0d0eeSNikolay Aleksandrov 2518b671779SNikolay Aleksandrov struct hlist_head src_list; 2528b671779SNikolay Aleksandrov unsigned int src_ents; 2536ec0d0eeSNikolay Aleksandrov struct timer_list timer; 25442c11ccfSNikolay Aleksandrov struct timer_list rexmit_timer; 2556ec0d0eeSNikolay Aleksandrov struct hlist_node mglist; 2566ec0d0eeSNikolay Aleksandrov 257e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2586ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 259eb1d1641SHerbert Xu }; 260eb1d1641SHerbert Xu 2611c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_entry { 26219e3a9c9SNikolay Aleksandrov struct rhash_head rhnode; 263eb1d1641SHerbert Xu struct net_bridge *br; 264e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 2658ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 266ff0fd34eSAndrew Lunn bool host_joined; 2676ec0d0eeSNikolay Aleksandrov 2686ec0d0eeSNikolay Aleksandrov struct timer_list timer; 26919e3a9c9SNikolay Aleksandrov struct hlist_node mdb_node; 2706ec0d0eeSNikolay Aleksandrov 271e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2726ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 273eb1d1641SHerbert Xu }; 274eb1d1641SHerbert Xu 2751f90c7f3SNikolay Aleksandrov struct net_bridge_port { 2761da177e4SLinus Torvalds struct net_bridge *br; 2771da177e4SLinus Torvalds struct net_device *dev; 2781da177e4SLinus Torvalds struct list_head list; 2791da177e4SLinus Torvalds 2801f90c7f3SNikolay Aleksandrov unsigned long flags; 2811f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 2821f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 2831f90c7f3SNikolay Aleksandrov #endif 2842756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 2851f90c7f3SNikolay Aleksandrov 2861da177e4SLinus Torvalds /* STP */ 2871da177e4SLinus Torvalds u8 priority; 2881da177e4SLinus Torvalds u8 state; 2891da177e4SLinus Torvalds u16 port_no; 2901da177e4SLinus Torvalds unsigned char topology_change_ack; 2911da177e4SLinus Torvalds unsigned char config_pending; 2921da177e4SLinus Torvalds port_id port_id; 2931da177e4SLinus Torvalds port_id designated_port; 2941da177e4SLinus Torvalds bridge_id designated_root; 2951da177e4SLinus Torvalds bridge_id designated_bridge; 2961da177e4SLinus Torvalds u32 path_cost; 2971da177e4SLinus Torvalds u32 designated_cost; 2980c03150eSstephen hemminger unsigned long designated_age; 2991da177e4SLinus Torvalds 3001da177e4SLinus Torvalds struct timer_list forward_delay_timer; 3011da177e4SLinus Torvalds struct timer_list hold_timer; 3021da177e4SLinus Torvalds struct timer_list message_age_timer; 3031da177e4SLinus Torvalds struct kobject kobj; 3041da177e4SLinus Torvalds struct rcu_head rcu; 3053982d3d2SFischer, Anna 306eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 30790010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 308cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 30990010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 310cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 311eb1d1641SHerbert Xu unsigned char multicast_router; 3121080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 313eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 314eb1d1641SHerbert Xu struct hlist_head mglist; 315eb1d1641SHerbert Xu struct hlist_node rlist; 316eb1d1641SHerbert Xu #endif 317e0f43752SSimon Arlott 318e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 319e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 320e0f43752SSimon Arlott #endif 32191d2c34aSHerbert Xu 32291d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 32391d2c34aSHerbert Xu struct netpoll *np; 32491d2c34aSHerbert Xu #endif 3256bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 3266bc506b4SIdo Schimmel int offload_fwd_mark; 3276bc506b4SIdo Schimmel #endif 3285af48b59SNikolay Aleksandrov u16 group_fwd_mask; 3292756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 330de179966SVivien Didelot 331de179966SVivien Didelot struct bridge_stp_xstats stp_xstats; 3321da177e4SLinus Torvalds }; 3331da177e4SLinus Torvalds 334705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 335705e0deaSTyler Hicks 336e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 337f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 338e028e4b8SVlad Yasevich 339b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 340b5ed54e9Sstephen hemminger { 341716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 342b5ed54e9Sstephen hemminger } 343b5ed54e9Sstephen hemminger 3441fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 345b5ed54e9Sstephen hemminger { 34635f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 347ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 348b5ed54e9Sstephen hemminger } 349b5ed54e9Sstephen hemminger 3500baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 3510baa10ffSArkadi Sharshevsky { 35235f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 3530baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3540baa10ffSArkadi Sharshevsky } 3550baa10ffSArkadi Sharshevsky 356ae75767eSNikolay Aleksandrov enum net_bridge_opts { 357ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 358ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 3598df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 3608df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 3618df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 362be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 36313cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 364675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 365675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 366675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 367675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 368c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 3693341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 3709163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 37170e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 3729c0ec2e7SMike Manning BROPT_VLAN_BRIDGE_BINDING, 373ae75767eSNikolay Aleksandrov }; 374ae75767eSNikolay Aleksandrov 3751f90c7f3SNikolay Aleksandrov struct net_bridge { 3761da177e4SLinus Torvalds spinlock_t lock; 3771f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 3781da177e4SLinus Torvalds struct list_head port_list; 3791da177e4SLinus Torvalds struct net_device *dev; 3808f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 381ae75767eSNikolay Aleksandrov unsigned long options; 3821f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3831f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3841f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3851f90c7f3SNikolay Aleksandrov u16 default_pvid; 3861f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3871f90c7f3SNikolay Aleksandrov #endif 3881f90c7f3SNikolay Aleksandrov 389eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 39034666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 391efb6de9bSBernhard Thaler union { 3924adf0af6SSimon Wunderlich struct rtable fake_rtable; 393efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 394efb6de9bSBernhard Thaler }; 3954adf0af6SSimon Wunderlich #endif 396515853ccSstephen hemminger u16 group_fwd_mask; 397f2808d22SToshiaki Makita u16 group_fwd_mask_required; 398515853ccSstephen hemminger 3991da177e4SLinus Torvalds /* STP */ 4001da177e4SLinus Torvalds bridge_id designated_root; 4011da177e4SLinus Torvalds bridge_id bridge_id; 4021f90c7f3SNikolay Aleksandrov unsigned char topology_change; 4031f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 4041f90c7f3SNikolay Aleksandrov u16 root_port; 4051da177e4SLinus Torvalds unsigned long max_age; 4061da177e4SLinus Torvalds unsigned long hello_time; 4071da177e4SLinus Torvalds unsigned long forward_delay; 4081da177e4SLinus Torvalds unsigned long ageing_time; 40934d8acd8SVivien Didelot unsigned long bridge_max_age; 4101da177e4SLinus Torvalds unsigned long bridge_hello_time; 4111da177e4SLinus Torvalds unsigned long bridge_forward_delay; 41234d8acd8SVivien Didelot unsigned long bridge_ageing_time; 41335750b0bSNikolay Aleksandrov u32 root_path_cost; 4141da177e4SLinus Torvalds 415fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 4169cde0708SStephen Hemminger 4179cde0708SStephen Hemminger enum { 4189cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 4199cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 4209cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 4219cde0708SStephen Hemminger } stp_enabled; 4229cde0708SStephen Hemminger 423eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 424eb1d1641SHerbert Xu 425eb1d1641SHerbert Xu u32 hash_max; 426eb1d1641SHerbert Xu 427eb1d1641SHerbert Xu u32 multicast_last_member_count; 428eb1d1641SHerbert Xu u32 multicast_startup_query_count; 429eb1d1641SHerbert Xu 4305e923585SNikolay Aleksandrov u8 multicast_igmp_version; 431675779adSNikolay Aleksandrov u8 multicast_router; 432675779adSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 433675779adSNikolay Aleksandrov u8 multicast_mld_version; 434675779adSNikolay Aleksandrov #endif 43535750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 436eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 437eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 438eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 439eb1d1641SHerbert Xu unsigned long multicast_query_interval; 440eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 441eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 442eb1d1641SHerbert Xu 44319e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 44419e3a9c9SNikolay Aleksandrov 445e12cec65SNikolay Aleksandrov struct hlist_head mcast_gc_list; 44619e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 447eb1d1641SHerbert Xu struct hlist_head router_list; 448eb1d1641SHerbert Xu 449eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 45090010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 45190010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 452dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 4531080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 454cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 45590010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 45690010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 457dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 458cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 459e12cec65SNikolay Aleksandrov struct work_struct mcast_gc_work; 460eb1d1641SHerbert Xu #endif 461eb1d1641SHerbert Xu 4621da177e4SLinus Torvalds struct timer_list hello_timer; 4631da177e4SLinus Torvalds struct timer_list tcn_timer; 4641da177e4SLinus Torvalds struct timer_list topology_change_timer; 465f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 46643b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 467e028e4b8SVlad Yasevich u32 auto_cnt; 4686bc506b4SIdo Schimmel 4696bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4706bc506b4SIdo Schimmel int offload_fwd_mark; 4716bc506b4SIdo Schimmel #endif 472eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4734b8d7d4cSHoratiu Vultur 4744b8d7d4cSHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 4759b14d1f8SHoratiu Vultur struct list_head mrp_list; 4764b8d7d4cSHoratiu Vultur #endif 4771da177e4SLinus Torvalds }; 4781da177e4SLinus Torvalds 47968b7c895SHerbert Xu struct br_input_skb_cb { 48068b7c895SHerbert Xu struct net_device *brdev; 48193fdd47eSHerbert Xu 4823c171f49SPablo Neira Ayuso u16 frag_max_size; 48332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 484f12064d1SFlorian Westphal u8 igmp; 485f12064d1SFlorian Westphal u8 mrouters_only:1; 48632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 487f12064d1SFlorian Westphal u8 proxyarp_replied:1; 488f12064d1SFlorian Westphal u8 src_port_isolated:1; 48920adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 490f12064d1SFlorian Westphal u8 vlan_filtered:1; 49120adfa1aSVlad Yasevich #endif 492223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 493223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 494223fd0adSFlorian Westphal #endif 4956bc506b4SIdo Schimmel 4966bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4976bc506b4SIdo Schimmel int offload_fwd_mark; 4986bc506b4SIdo Schimmel #endif 49968b7c895SHerbert Xu }; 50068b7c895SHerbert Xu 50168b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 50268b7c895SHerbert Xu 50332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 50432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 50532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 50632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 50732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 50832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 50928a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 51028a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 51128a16c97Sstephen hemminger 51228a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 51328a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 51428a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 51528a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 51628a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 51728a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 51828a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 51928a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 52028a16c97Sstephen hemminger 52128a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 52228a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 52328a16c97Sstephen hemminger 5241da177e4SLinus Torvalds /* called under bridge lock */ 5251da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 5261da177e4SLinus Torvalds { 5271da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 5281da177e4SLinus Torvalds } 5291da177e4SLinus Torvalds 5302594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 5312594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 5322594e906SNikolay Aleksandrov { 5332594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 5342594e906SNikolay Aleksandrov } 5352594e906SNikolay Aleksandrov 5362594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 5372594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 5382594e906SNikolay Aleksandrov { 5392594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 5402594e906SNikolay Aleksandrov } 5412594e906SNikolay Aleksandrov 5426be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 5432594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 5442594e906SNikolay Aleksandrov { 5452594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 5462594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 5472594e906SNikolay Aleksandrov return true; 5482594e906SNikolay Aleksandrov else 5492594e906SNikolay Aleksandrov return false; 5502594e906SNikolay Aleksandrov } 5512594e906SNikolay Aleksandrov 5522594e906SNikolay Aleksandrov return true; 5532594e906SNikolay Aleksandrov } 5542594e906SNikolay Aleksandrov 5555d1fcaf3SNikolay Aleksandrov static inline bool nbp_state_should_learn(const struct net_bridge_port *p) 5565d1fcaf3SNikolay Aleksandrov { 5575d1fcaf3SNikolay Aleksandrov return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; 5585d1fcaf3SNikolay Aleksandrov } 5595d1fcaf3SNikolay Aleksandrov 5608f4cc940SNikolay Aleksandrov static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack) 5615a46facbSNikolay Aleksandrov { 5628f4cc940SNikolay Aleksandrov bool ret = vid > 0 && vid < VLAN_VID_MASK; 5638f4cc940SNikolay Aleksandrov 5648f4cc940SNikolay Aleksandrov if (!ret) 5658f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid"); 5668f4cc940SNikolay Aleksandrov 5678f4cc940SNikolay Aleksandrov return ret; 5685a46facbSNikolay Aleksandrov } 5695a46facbSNikolay Aleksandrov 5705a46facbSNikolay Aleksandrov static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, 5718f4cc940SNikolay Aleksandrov const struct bridge_vlan_info *last, 5728f4cc940SNikolay Aleksandrov struct netlink_ext_ack *extack) 5735a46facbSNikolay Aleksandrov { 5745a46facbSNikolay Aleksandrov /* pvid flag is not allowed in ranges */ 5758f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_PVID) { 5768f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range"); 5775a46facbSNikolay Aleksandrov return false; 5788f4cc940SNikolay Aleksandrov } 5795a46facbSNikolay Aleksandrov 5805a46facbSNikolay Aleksandrov /* when cur is the range end, check if: 5815a46facbSNikolay Aleksandrov * - it has range start flag 5825a46facbSNikolay Aleksandrov * - range ids are invalid (end is equal to or before start) 5835a46facbSNikolay Aleksandrov */ 5845a46facbSNikolay Aleksandrov if (last) { 5858f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { 5868f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one"); 5875a46facbSNikolay Aleksandrov return false; 5888f4cc940SNikolay Aleksandrov } else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) { 5898f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing"); 5908f4cc940SNikolay Aleksandrov return false; 5918f4cc940SNikolay Aleksandrov } else if (cur->vid <= last->vid) { 5928f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); 5938f4cc940SNikolay Aleksandrov return false; 5948f4cc940SNikolay Aleksandrov } 5958f4cc940SNikolay Aleksandrov } 5968f4cc940SNikolay Aleksandrov 5978f4cc940SNikolay Aleksandrov /* check for required range flags */ 5988f4cc940SNikolay Aleksandrov if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 5998f4cc940SNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END))) { 6008f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing"); 6015a46facbSNikolay Aleksandrov return false; 6025a46facbSNikolay Aleksandrov } 6035a46facbSNikolay Aleksandrov 6045a46facbSNikolay Aleksandrov return true; 6055a46facbSNikolay Aleksandrov } 6065a46facbSNikolay Aleksandrov 607f545923bSNikolay Aleksandrov static inline int br_afspec_cmd_to_rtm(int cmd) 608f545923bSNikolay Aleksandrov { 609f545923bSNikolay Aleksandrov switch (cmd) { 610f545923bSNikolay Aleksandrov case RTM_SETLINK: 611f545923bSNikolay Aleksandrov return RTM_NEWVLAN; 612f545923bSNikolay Aleksandrov case RTM_DELLINK: 613f545923bSNikolay Aleksandrov return RTM_DELVLAN; 614f545923bSNikolay Aleksandrov } 615f545923bSNikolay Aleksandrov 616f545923bSNikolay Aleksandrov return 0; 617f545923bSNikolay Aleksandrov } 618f545923bSNikolay Aleksandrov 619ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 620ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 621ae75767eSNikolay Aleksandrov { 622ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 623ae75767eSNikolay Aleksandrov } 624ae75767eSNikolay Aleksandrov 625a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 626a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 627a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 628a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 629a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 630a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 631a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 632a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 633ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 634ae75767eSNikolay Aleksandrov 6351da177e4SLinus Torvalds /* br_device.c */ 636348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 637348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 638348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 639cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 64091d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 64191d2c34aSHerbert Xu struct sk_buff *skb) 64291d2c34aSHerbert Xu { 643f78ed220SEric Dumazet netpoll_send_skb(p->np, skb); 64491d2c34aSHerbert Xu } 64591d2c34aSHerbert Xu 646a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 647348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 64891d2c34aSHerbert Xu #else 6499f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 65091d2c34aSHerbert Xu struct sk_buff *skb) 65191d2c34aSHerbert Xu { 65291d2c34aSHerbert Xu } 65391d2c34aSHerbert Xu 654a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 65591d2c34aSHerbert Xu { 65691d2c34aSHerbert Xu return 0; 65791d2c34aSHerbert Xu } 65891d2c34aSHerbert Xu 65991d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 66091d2c34aSHerbert Xu { 66191d2c34aSHerbert Xu } 662cfb478daSstephen hemminger #endif 6631da177e4SLinus Torvalds 6641da177e4SLinus Torvalds /* br_fdb.c */ 665348662a1SJoe Perches int br_fdb_init(void); 666348662a1SJoe Perches void br_fdb_fini(void); 667eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 668eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 669348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 670424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 671424bb9c9SToshiaki Makita const struct net_bridge_port *p, 672424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 673348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 674348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 675f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 676348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 6771ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 678bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 679bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 680bfd0aeacSNikolay Aleksandrov __u16 vid); 681348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 682348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 683348662a1SJoe Perches unsigned long off); 684348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 685348662a1SJoe Perches const unsigned char *addr, u16 vid); 686348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 687be0c5677SNikolay Aleksandrov const unsigned char *addr, u16 vid, unsigned long flags); 68877162022SJohn Fastabend 689348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 690f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 691348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 69287b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 69387b0984eSPetr Machata struct netlink_ext_ack *extack); 694348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 695d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 69647674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 69747674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 69847674562SRoopa Prabhu struct netlink_ext_ack *extack); 6998db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 7008db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 7013aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 702161d82deSPetr Machata const unsigned char *addr, u16 vid, 703161d82deSPetr Machata bool swdev_notify); 7043aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 705161d82deSPetr Machata const unsigned char *addr, u16 vid, 706161d82deSPetr Machata bool swdev_notify); 7079fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 708e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 7091da177e4SLinus Torvalds 7101da177e4SLinus Torvalds /* br_forward.c */ 7118addd5e7SNikolay Aleksandrov enum br_pkt_type { 7128addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 7138addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 7148addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 7158addd5e7SNikolay Aleksandrov }; 7160c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 717b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 71837b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 7190c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 72037b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 7218addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 7221da177e4SLinus Torvalds 7237d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 7247d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 7257d850abdSNikolay Aleksandrov const struct sk_buff *skb) 7267d850abdSNikolay Aleksandrov { 7277d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 7287d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 7297d850abdSNikolay Aleksandrov } 7307d850abdSNikolay Aleksandrov 7311da177e4SLinus Torvalds /* br_if.c */ 732faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 733348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 734348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 735ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 736ca752be0SDavid Ahern struct netlink_ext_ack *extack); 737348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 738804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 739348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 740c8f44affSMichał Mirosław netdev_features_t features); 741e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 7422796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 7432756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 7441da177e4SLinus Torvalds 7451da177e4SLinus Torvalds /* br_input.c */ 7460c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 7479eb8eff0SVladimir Oltean rx_handler_func_t *br_get_rx_handler(const struct net_device *dev); 7481da177e4SLinus Torvalds 749859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 750859828c0SJiri Pirko { 7519eb8eff0SVladimir Oltean return rcu_dereference(dev->rx_handler) == br_get_rx_handler(dev); 752859828c0SJiri Pirko } 753859828c0SJiri Pirko 7544d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 7554d4fd361SPetr Machata { 7569eb8eff0SVladimir Oltean return rcu_dereference_rtnl(dev->rx_handler) == br_get_rx_handler(dev); 7574d4fd361SPetr Machata } 7584d4fd361SPetr Machata 759859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 760859828c0SJiri Pirko { 761859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 762859828c0SJiri Pirko } 763859828c0SJiri Pirko 7644d4fd361SPetr Machata static inline struct net_bridge_port * 7654d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 7664d4fd361SPetr Machata { 7674d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 7684d4fd361SPetr Machata } 7694d4fd361SPetr Machata 7701da177e4SLinus Torvalds /* br_ioctl.c */ 771348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 772348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 773348662a1SJoe Perches void __user *arg); 7741da177e4SLinus Torvalds 775eb1d1641SHerbert Xu /* br_multicast.c */ 776eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 777348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 778fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 779348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 780eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 7811080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 782348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 783348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 784348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 785348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 786348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 787348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 788e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 78937b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 79037b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 791348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 792348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 793348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 794348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 795348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 7965e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 797aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 798aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 799aa2ae3e7SNikolay Aleksandrov #endif 800348662a1SJoe Perches struct net_bridge_mdb_entry * 80119e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 802348662a1SJoe Perches struct net_bridge_mdb_entry * 80319e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 804348662a1SJoe Perches struct net_bridge_port_group * 805348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 806762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 8078b671779SNikolay Aleksandrov unsigned char flags, const unsigned char *src, 8088f8cb77eSNikolay Aleksandrov u8 filter_mode, u8 rt_protocol); 80919e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 81019e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 81181f19838SNikolay Aleksandrov void br_mdb_notify(struct net_device *dev, struct net_bridge_mdb_entry *mp, 81281f19838SNikolay Aleksandrov struct net_bridge_port_group *pg, int type); 813949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 814949f1e39SSatish Ashok int type); 815681590bdSNikolay Aleksandrov void br_multicast_del_pg(struct net_bridge_mdb_entry *mp, 816681590bdSNikolay Aleksandrov struct net_bridge_port_group *pg, 817681590bdSNikolay Aleksandrov struct net_bridge_port_group __rcu **pp); 8181080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 819a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 8201080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 821b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 8221080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 8231080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 8241080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 82519e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 82619e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 8271bc844eeSNikolay Aleksandrov void br_multicast_host_join(struct net_bridge_mdb_entry *mp, bool notify); 8281bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 82985b35269SSridhar Samudrala 830cfd56754SCong Wang #define mlock_dereference(X, br) \ 831cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 832cfd56754SCong Wang 83385b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 83485b35269SSridhar Samudrala { 83585b35269SSridhar Samudrala return br->multicast_router == 2 || 83685b35269SSridhar Samudrala (br->multicast_router == 1 && 83785b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 83885b35269SSridhar Samudrala } 839b00589afSLinus Lüssing 840cc0fdd80SLinus Lüssing static inline bool 841cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 8420888d5f3Sdaniel struct bridge_mcast_other_query *querier, 8430888d5f3Sdaniel const bool is_ipv6) 844b00589afSLinus Lüssing { 8450888d5f3Sdaniel bool own_querier_enabled; 8460888d5f3Sdaniel 847675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 848675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 8490888d5f3Sdaniel own_querier_enabled = false; 8500888d5f3Sdaniel else 8510888d5f3Sdaniel own_querier_enabled = true; 8520888d5f3Sdaniel } else { 8530888d5f3Sdaniel own_querier_enabled = false; 8540888d5f3Sdaniel } 8550888d5f3Sdaniel 856cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 8570888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 858cc0fdd80SLinus Lüssing } 859cc0fdd80SLinus Lüssing 860cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 861cc0fdd80SLinus Lüssing struct ethhdr *eth) 862cc0fdd80SLinus Lüssing { 863cc0fdd80SLinus Lüssing switch (eth->h_proto) { 864cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 8650888d5f3Sdaniel return __br_multicast_querier_exists(br, 8660888d5f3Sdaniel &br->ip4_other_query, false); 867cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 868cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 8690888d5f3Sdaniel return __br_multicast_querier_exists(br, 8700888d5f3Sdaniel &br->ip6_other_query, true); 871cc0fdd80SLinus Lüssing #endif 872cc0fdd80SLinus Lüssing default: 873cc0fdd80SLinus Lüssing return false; 874cc0fdd80SLinus Lüssing } 875b00589afSLinus Lüssing } 8761080ab95SNikolay Aleksandrov 87788d4bd18SNikolay Aleksandrov static inline bool br_multicast_is_star_g(const struct br_ip *ip) 87888d4bd18SNikolay Aleksandrov { 87988d4bd18SNikolay Aleksandrov switch (ip->proto) { 88088d4bd18SNikolay Aleksandrov case htons(ETH_P_IP): 88188d4bd18SNikolay Aleksandrov return ipv4_is_zeronet(ip->src.ip4); 88288d4bd18SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 88388d4bd18SNikolay Aleksandrov case htons(ETH_P_IPV6): 88488d4bd18SNikolay Aleksandrov return ipv6_addr_any(&ip->src.ip6); 88588d4bd18SNikolay Aleksandrov #endif 88688d4bd18SNikolay Aleksandrov default: 88788d4bd18SNikolay Aleksandrov return false; 88888d4bd18SNikolay Aleksandrov } 88988d4bd18SNikolay Aleksandrov } 89088d4bd18SNikolay Aleksandrov 8911080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 8921080ab95SNikolay Aleksandrov { 8931080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 8941080ab95SNikolay Aleksandrov } 89542c11ccfSNikolay Aleksandrov 89642c11ccfSNikolay Aleksandrov static inline unsigned long br_multicast_lmqt(const struct net_bridge *br) 89742c11ccfSNikolay Aleksandrov { 89842c11ccfSNikolay Aleksandrov return br->multicast_last_member_interval * 89942c11ccfSNikolay Aleksandrov br->multicast_last_member_count; 90042c11ccfSNikolay Aleksandrov } 9010436862eSNikolay Aleksandrov 9020436862eSNikolay Aleksandrov static inline unsigned long br_multicast_gmi(const struct net_bridge *br) 9030436862eSNikolay Aleksandrov { 9040436862eSNikolay Aleksandrov /* use the RFC default of 2 for QRV */ 9050436862eSNikolay Aleksandrov return 2 * br->multicast_query_interval + 9060436862eSNikolay Aleksandrov br->multicast_query_response_interval; 9070436862eSNikolay Aleksandrov } 908eb1d1641SHerbert Xu #else 909eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 910eb1d1641SHerbert Xu struct net_bridge_port *port, 91106499098SVlad Yasevich struct sk_buff *skb, 91206499098SVlad Yasevich u16 vid) 913eb1d1641SHerbert Xu { 914eb1d1641SHerbert Xu return 0; 915eb1d1641SHerbert Xu } 916eb1d1641SHerbert Xu 917eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 918fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 919eb1d1641SHerbert Xu { 920eb1d1641SHerbert Xu return NULL; 921eb1d1641SHerbert Xu } 922eb1d1641SHerbert Xu 9231080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 924eb1d1641SHerbert Xu { 9251080ab95SNikolay Aleksandrov return 0; 926eb1d1641SHerbert Xu } 927eb1d1641SHerbert Xu 928eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 929eb1d1641SHerbert Xu { 930eb1d1641SHerbert Xu } 931eb1d1641SHerbert Xu 932eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 933eb1d1641SHerbert Xu { 934eb1d1641SHerbert Xu } 935eb1d1641SHerbert Xu 936eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 937eb1d1641SHerbert Xu { 938eb1d1641SHerbert Xu } 939eb1d1641SHerbert Xu 940eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 941eb1d1641SHerbert Xu { 942eb1d1641SHerbert Xu } 943eb1d1641SHerbert Xu 944eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 945eb1d1641SHerbert Xu { 946eb1d1641SHerbert Xu } 947eb1d1641SHerbert Xu 948eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 949eb1d1641SHerbert Xu { 950eb1d1641SHerbert Xu } 9515cb5e947SHerbert Xu 952a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 953a7ce45a7SNikolay Aleksandrov { 954a7ce45a7SNikolay Aleksandrov } 955a7ce45a7SNikolay Aleksandrov 95637b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 95737b090e6SNikolay Aleksandrov struct sk_buff *skb, 95837b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 9595cb5e947SHerbert Xu { 9605cb5e947SHerbert Xu } 9615cb5e947SHerbert Xu 962eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 963eb1d1641SHerbert Xu { 96403aaa9e2SGustavo A. R. Silva return false; 965eb1d1641SHerbert Xu } 96637b090e6SNikolay Aleksandrov 967cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 968cc0fdd80SLinus Lüssing struct ethhdr *eth) 969b00589afSLinus Lüssing { 970b00589afSLinus Lüssing return false; 971b00589afSLinus Lüssing } 97237b090e6SNikolay Aleksandrov 973fdb184d1SRami Rosen static inline void br_mdb_init(void) 974fdb184d1SRami Rosen { 975fdb184d1SRami Rosen } 97637b090e6SNikolay Aleksandrov 977fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 978fdb184d1SRami Rosen { 979fdb184d1SRami Rosen } 9801080ab95SNikolay Aleksandrov 98119e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 98219e3a9c9SNikolay Aleksandrov { 98319e3a9c9SNikolay Aleksandrov return 0; 98419e3a9c9SNikolay Aleksandrov } 98519e3a9c9SNikolay Aleksandrov 98619e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 98719e3a9c9SNikolay Aleksandrov { 98819e3a9c9SNikolay Aleksandrov } 98919e3a9c9SNikolay Aleksandrov 9901080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 9911080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 992a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 993a65056ecSNikolay Aleksandrov u8 type, u8 dir) 9941080ab95SNikolay Aleksandrov { 9951080ab95SNikolay Aleksandrov } 9961080ab95SNikolay Aleksandrov 9971080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 9981080ab95SNikolay Aleksandrov { 9991080ab95SNikolay Aleksandrov return 0; 10001080ab95SNikolay Aleksandrov } 10011080ab95SNikolay Aleksandrov 1002b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 1003b6fe0440SIdo Schimmel { 1004b6fe0440SIdo Schimmel } 1005b6fe0440SIdo Schimmel 10061080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 10071080ab95SNikolay Aleksandrov { 10081080ab95SNikolay Aleksandrov return 0; 10091080ab95SNikolay Aleksandrov } 101085b35269SSridhar Samudrala #endif 1011eb1d1641SHerbert Xu 1012243a2e63SVlad Yasevich /* br_vlan.c */ 1013243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 101477751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 101577751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 1016a580c76dSNikolay Aleksandrov u16 *vid, u8 *state); 101777751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 101885f46c6bSVlad Yasevich const struct sk_buff *skb); 1019e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 1020348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 102111538d03SRoopa Prabhu const struct net_bridge_port *port, 10222594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 102378851988SVlad Yasevich struct sk_buff *skb); 1024f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1025169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1026348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 1027348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 10282594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 1029204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 1030a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 1031348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 1032d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 1033204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 10346dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 10359163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 10365be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 103796a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 1038169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 1039169327d5SPetr Machata struct netlink_ext_ack *extack); 1040f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1041169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1042348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 1043348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 1044169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 10452594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 1046a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 1047a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 10489c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 1049091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 10509c0ec2e7SMike Manning void *ptr); 10518dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void); 10528dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void); 1053cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 1054cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1055cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1056cf5bddb9SNikolay Aleksandrov int cmd); 1057a5d29ae2SNikolay Aleksandrov bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1058a5d29ae2SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 1059a37b85c9SVlad Yasevich 10602594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 1061a37b85c9SVlad Yasevich const struct net_bridge *br) 1062a37b85c9SVlad Yasevich { 1063907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 1064a37b85c9SVlad Yasevich } 1065a37b85c9SVlad Yasevich 10662594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 1067a37b85c9SVlad Yasevich const struct net_bridge_port *p) 1068a37b85c9SVlad Yasevich { 1069907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 1070907b1e6eSNikolay Aleksandrov } 1071907b1e6eSNikolay Aleksandrov 1072907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1073907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1074907b1e6eSNikolay Aleksandrov { 1075907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 1076907b1e6eSNikolay Aleksandrov } 1077907b1e6eSNikolay Aleksandrov 1078907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1079907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1080907b1e6eSNikolay Aleksandrov { 1081907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 1082a37b85c9SVlad Yasevich } 1083a37b85c9SVlad Yasevich 1084a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 1085a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 1086a37b85c9SVlad Yasevich */ 1087a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 1088a37b85c9SVlad Yasevich { 1089a37b85c9SVlad Yasevich int err = 0; 1090a37b85c9SVlad Yasevich 10912594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 10925978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 10932594e906SNikolay Aleksandrov } else { 1094a37b85c9SVlad Yasevich *vid = 0; 1095a37b85c9SVlad Yasevich err = -EINVAL; 1096a37b85c9SVlad Yasevich } 1097a37b85c9SVlad Yasevich 1098a37b85c9SVlad Yasevich return err; 1099a37b85c9SVlad Yasevich } 110078851988SVlad Yasevich 110177751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 110278851988SVlad Yasevich { 110377751ee8SNikolay Aleksandrov if (!vg) 11045be5a2dfSVlad Yasevich return 0; 11055be5a2dfSVlad Yasevich 110678851988SVlad Yasevich smp_rmb(); 110777751ee8SNikolay Aleksandrov return vg->pvid; 110878851988SVlad Yasevich } 110978851988SVlad Yasevich 11108dcea187SNikolay Aleksandrov static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) 11118dcea187SNikolay Aleksandrov { 11128dcea187SNikolay Aleksandrov return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags; 11138dcea187SNikolay Aleksandrov } 1114243a2e63SVlad Yasevich #else 111577751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 111677751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 11172594e906SNikolay Aleksandrov struct sk_buff *skb, 1118a580c76dSNikolay Aleksandrov u16 *vid, u8 *state) 11192594e906SNikolay Aleksandrov { 11202594e906SNikolay Aleksandrov return true; 11212594e906SNikolay Aleksandrov } 11222594e906SNikolay Aleksandrov 11232594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 112485f46c6bSVlad Yasevich const struct sk_buff *skb) 112585f46c6bSVlad Yasevich { 112685f46c6bSVlad Yasevich return true; 112785f46c6bSVlad Yasevich } 112885f46c6bSVlad Yasevich 1129e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 1130e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 1131e0d7968aSToshiaki Makita { 1132e0d7968aSToshiaki Makita return true; 1133e0d7968aSToshiaki Makita } 1134e0d7968aSToshiaki Makita 113578851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 113611538d03SRoopa Prabhu const struct net_bridge_port *port, 11372594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 113878851988SVlad Yasevich struct sk_buff *skb) 113978851988SVlad Yasevich { 114078851988SVlad Yasevich return skb; 114178851988SVlad Yasevich } 114278851988SVlad Yasevich 1143f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1144169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1145243a2e63SVlad Yasevich { 1146f418af63SNikolay Aleksandrov *changed = false; 1147243a2e63SVlad Yasevich return -EOPNOTSUPP; 1148243a2e63SVlad Yasevich } 1149243a2e63SVlad Yasevich 1150243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 1151243a2e63SVlad Yasevich { 1152243a2e63SVlad Yasevich return -EOPNOTSUPP; 1153243a2e63SVlad Yasevich } 1154243a2e63SVlad Yasevich 1155243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1156243a2e63SVlad Yasevich { 1157243a2e63SVlad Yasevich } 1158243a2e63SVlad Yasevich 1159204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1160204177f3SToshiaki Makita { 1161204177f3SToshiaki Makita } 1162204177f3SToshiaki Makita 11635be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 11648580e211SToshiaki Makita { 11655be5a2dfSVlad Yasevich return 0; 11668580e211SToshiaki Makita } 11678580e211SToshiaki Makita 1168f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1169169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1170243a2e63SVlad Yasevich { 1171f418af63SNikolay Aleksandrov *changed = false; 1172243a2e63SVlad Yasevich return -EOPNOTSUPP; 1173243a2e63SVlad Yasevich } 1174243a2e63SVlad Yasevich 1175243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1176243a2e63SVlad Yasevich { 1177243a2e63SVlad Yasevich return -EOPNOTSUPP; 1178243a2e63SVlad Yasevich } 1179243a2e63SVlad Yasevich 1180243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1181243a2e63SVlad Yasevich { 1182243a2e63SVlad Yasevich } 1183243a2e63SVlad Yasevich 11842594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 11852594e906SNikolay Aleksandrov u16 vid) 1186a37b85c9SVlad Yasevich { 1187a37b85c9SVlad Yasevich return NULL; 1188a37b85c9SVlad Yasevich } 1189bc9a25d2SVlad Yasevich 1190169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1191169327d5SPetr Machata struct netlink_ext_ack *extack) 11925be5a2dfSVlad Yasevich { 11935be5a2dfSVlad Yasevich return 0; 11945be5a2dfSVlad Yasevich } 11955be5a2dfSVlad Yasevich 119678851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1197a37b85c9SVlad Yasevich { 1198a37b85c9SVlad Yasevich return 0; 1199a37b85c9SVlad Yasevich } 12002594e906SNikolay Aleksandrov 120177751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 120278851988SVlad Yasevich { 12033df6bf45SVlad Yasevich return 0; 120478851988SVlad Yasevich } 12052796d0c6SVlad Yasevich 1206a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1207a7854037SNikolay Aleksandrov unsigned long val) 1208a7854037SNikolay Aleksandrov { 1209a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1210a7854037SNikolay Aleksandrov } 12112594e906SNikolay Aleksandrov 12122594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 12132594e906SNikolay Aleksandrov u32 filter_mask) 12142594e906SNikolay Aleksandrov { 12152594e906SNikolay Aleksandrov return 0; 12162594e906SNikolay Aleksandrov } 12172594e906SNikolay Aleksandrov 12182594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 12192594e906SNikolay Aleksandrov const struct net_bridge *br) 12202594e906SNikolay Aleksandrov { 12212594e906SNikolay Aleksandrov return NULL; 12222594e906SNikolay Aleksandrov } 12232594e906SNikolay Aleksandrov 12242594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 12252594e906SNikolay Aleksandrov const struct net_bridge_port *p) 12262594e906SNikolay Aleksandrov { 12272594e906SNikolay Aleksandrov return NULL; 12282594e906SNikolay Aleksandrov } 1229907b1e6eSNikolay Aleksandrov 1230907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1231907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1232907b1e6eSNikolay Aleksandrov { 1233907b1e6eSNikolay Aleksandrov return NULL; 1234907b1e6eSNikolay Aleksandrov } 1235907b1e6eSNikolay Aleksandrov 1236907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1237907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1238907b1e6eSNikolay Aleksandrov { 1239907b1e6eSNikolay Aleksandrov return NULL; 1240907b1e6eSNikolay Aleksandrov } 1241a60c0903SNikolay Aleksandrov 1242a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1243a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1244a60c0903SNikolay Aleksandrov { 1245a60c0903SNikolay Aleksandrov } 12469c0ec2e7SMike Manning 12479c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 12489c0ec2e7SMike Manning unsigned long event) 12499c0ec2e7SMike Manning { 12509c0ec2e7SMike Manning } 12519c0ec2e7SMike Manning 1252091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 12539c0ec2e7SMike Manning unsigned long event, void *ptr) 12549c0ec2e7SMike Manning { 1255091adf9bSNikolay Aleksandrov return 0; 12569c0ec2e7SMike Manning } 12578dcea187SNikolay Aleksandrov 12588dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_init(void) 12598dcea187SNikolay Aleksandrov { 12608dcea187SNikolay Aleksandrov } 12618dcea187SNikolay Aleksandrov 12628dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_uninit(void) 12638dcea187SNikolay Aleksandrov { 12648dcea187SNikolay Aleksandrov } 1265cf5bddb9SNikolay Aleksandrov 1266cf5bddb9SNikolay Aleksandrov static inline void br_vlan_notify(const struct net_bridge *br, 1267cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1268cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1269cf5bddb9SNikolay Aleksandrov int cmd) 1270cf5bddb9SNikolay Aleksandrov { 1271cf5bddb9SNikolay Aleksandrov } 1272528ae84aSNikolay Aleksandrov 1273528ae84aSNikolay Aleksandrov static inline bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1274528ae84aSNikolay Aleksandrov const struct net_bridge_vlan *range_end) 1275528ae84aSNikolay Aleksandrov { 1276528ae84aSNikolay Aleksandrov return true; 1277528ae84aSNikolay Aleksandrov } 1278243a2e63SVlad Yasevich #endif 1279243a2e63SVlad Yasevich 12807a53e718SNikolay Aleksandrov /* br_vlan_options.c */ 12817a53e718SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 128299f7c5e0SNikolay Aleksandrov bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, 128399f7c5e0SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 12847a53e718SNikolay Aleksandrov bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v); 12857a53e718SNikolay Aleksandrov size_t br_vlan_opts_nl_size(void); 1286a5d29ae2SNikolay Aleksandrov int br_vlan_process_options(const struct net_bridge *br, 1287a5d29ae2SNikolay Aleksandrov const struct net_bridge_port *p, 1288a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_start, 1289a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_end, 1290a5d29ae2SNikolay Aleksandrov struct nlattr **tb, 1291a5d29ae2SNikolay Aleksandrov struct netlink_ext_ack *extack); 1292a580c76dSNikolay Aleksandrov 1293a580c76dSNikolay Aleksandrov /* vlan state manipulation helpers using *_ONCE to annotate lock-free access */ 1294a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v) 1295a580c76dSNikolay Aleksandrov { 1296a580c76dSNikolay Aleksandrov return READ_ONCE(v->state); 1297a580c76dSNikolay Aleksandrov } 1298a580c76dSNikolay Aleksandrov 1299a580c76dSNikolay Aleksandrov static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state) 1300a580c76dSNikolay Aleksandrov { 1301a580c76dSNikolay Aleksandrov WRITE_ONCE(v->state, state); 1302a580c76dSNikolay Aleksandrov } 1303a580c76dSNikolay Aleksandrov 1304a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg) 1305a580c76dSNikolay Aleksandrov { 1306a580c76dSNikolay Aleksandrov return READ_ONCE(vg->pvid_state); 1307a580c76dSNikolay Aleksandrov } 1308a580c76dSNikolay Aleksandrov 1309a580c76dSNikolay Aleksandrov static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg, 1310a580c76dSNikolay Aleksandrov u8 state) 1311a580c76dSNikolay Aleksandrov { 1312a580c76dSNikolay Aleksandrov WRITE_ONCE(vg->pvid_state, state); 1313a580c76dSNikolay Aleksandrov } 1314a580c76dSNikolay Aleksandrov 1315a580c76dSNikolay Aleksandrov /* learn_allow is true at ingress and false at egress */ 1316a580c76dSNikolay Aleksandrov static inline bool br_vlan_state_allowed(u8 state, bool learn_allow) 1317a580c76dSNikolay Aleksandrov { 1318a580c76dSNikolay Aleksandrov switch (state) { 1319a580c76dSNikolay Aleksandrov case BR_STATE_LEARNING: 1320a580c76dSNikolay Aleksandrov return learn_allow; 1321a580c76dSNikolay Aleksandrov case BR_STATE_FORWARDING: 1322a580c76dSNikolay Aleksandrov return true; 1323a580c76dSNikolay Aleksandrov default: 1324a580c76dSNikolay Aleksandrov return false; 1325a580c76dSNikolay Aleksandrov } 1326a580c76dSNikolay Aleksandrov } 13277a53e718SNikolay Aleksandrov #endif 13287a53e718SNikolay Aleksandrov 13291a4ba64dSPablo Neira Ayuso struct nf_br_ops { 13301a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 13311a4ba64dSPablo Neira Ayuso }; 13321a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 13331a4ba64dSPablo Neira Ayuso 13341da177e4SLinus Torvalds /* br_netfilter.c */ 133534666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 133634666d46SPablo Neira Ayuso int br_nf_core_init(void); 133734666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1338348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1339c0909713SStephen Hemminger #else 134034666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 134134666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 13424adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1343c0909713SStephen Hemminger #endif 13441da177e4SLinus Torvalds 13451da177e4SLinus Torvalds /* br_stp.c */ 1346775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1347348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1348348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1349348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 13501da177e4SLinus Torvalds 1351348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1352348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1353348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1354348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 135582dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 13569e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 135714f98f25Sstephen hemminger 135814f98f25Sstephen hemminger 13591da177e4SLinus Torvalds /* br_stp_if.c */ 1360348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1361348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1362419dba8aSHoratiu Vultur int br_stp_set_enabled(struct net_bridge *br, unsigned long val, 1363419dba8aSHoratiu Vultur struct netlink_ext_ack *extack); 1364348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1365348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1366348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1367348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1368348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1369348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1370348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1371348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 13721da177e4SLinus Torvalds 13731da177e4SLinus Torvalds /* br_stp_bpdu.c */ 13747c85fbf0SPatrick McHardy struct stp_proto; 1375348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 13767c85fbf0SPatrick McHardy struct net_device *dev); 13771da177e4SLinus Torvalds 13781da177e4SLinus Torvalds /* br_stp_timer.c */ 1379348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1380348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1381348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 13821da177e4SLinus Torvalds 13831da177e4SLinus Torvalds /* br.c */ 1384e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1385da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1386da678292SMichał Mirosław #endif 13871da177e4SLinus Torvalds 138865369933SHoratiu Vultur /* br_mrp.c */ 138965369933SHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 139065369933SHoratiu Vultur int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 139165369933SHoratiu Vultur struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 139265369933SHoratiu Vultur int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb); 139365369933SHoratiu Vultur bool br_mrp_enabled(struct net_bridge *br); 139465369933SHoratiu Vultur void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p); 1395df42ef22SHoratiu Vultur int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br); 139665369933SHoratiu Vultur #else 139765369933SHoratiu Vultur static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 139865369933SHoratiu Vultur struct nlattr *attr, int cmd, 139965369933SHoratiu Vultur struct netlink_ext_ack *extack) 140065369933SHoratiu Vultur { 140165369933SHoratiu Vultur return -EOPNOTSUPP; 140265369933SHoratiu Vultur } 140365369933SHoratiu Vultur 140465369933SHoratiu Vultur static inline int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb) 140565369933SHoratiu Vultur { 140665369933SHoratiu Vultur return 0; 140765369933SHoratiu Vultur } 140865369933SHoratiu Vultur 140965369933SHoratiu Vultur static inline bool br_mrp_enabled(struct net_bridge *br) 141065369933SHoratiu Vultur { 14118741e184SJason Yan return false; 141265369933SHoratiu Vultur } 141365369933SHoratiu Vultur 141465369933SHoratiu Vultur static inline void br_mrp_port_del(struct net_bridge *br, 141565369933SHoratiu Vultur struct net_bridge_port *p) 141665369933SHoratiu Vultur { 141765369933SHoratiu Vultur } 1418df42ef22SHoratiu Vultur 1419df42ef22SHoratiu Vultur static inline int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br) 1420df42ef22SHoratiu Vultur { 1421df42ef22SHoratiu Vultur return 0; 1422df42ef22SHoratiu Vultur } 1423df42ef22SHoratiu Vultur 142465369933SHoratiu Vultur #endif 142565369933SHoratiu Vultur 142611dc1f36SStephen Hemminger /* br_netlink.c */ 1427149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1428348662a1SJoe Perches int br_netlink_init(void); 1429348662a1SJoe Perches void br_netlink_fini(void); 143092899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 143192899063SNikolay Aleksandrov const struct net_bridge_port *port); 14322fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 14332fd527b7SPetr Machata struct netlink_ext_ack *extack); 1434add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1435348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 143646c264daSNicolas Dichtel u32 filter_mask, int nlflags); 1437f26b2965SNikolay Aleksandrov int br_process_vlan_info(struct net_bridge *br, 1438f26b2965SNikolay Aleksandrov struct net_bridge_port *p, int cmd, 1439f26b2965SNikolay Aleksandrov struct bridge_vlan_info *vinfo_curr, 1440f26b2965SNikolay Aleksandrov struct bridge_vlan_info **vinfo_last, 1441f26b2965SNikolay Aleksandrov bool *changed, 1442f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack); 144311dc1f36SStephen Hemminger 14441da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 14451da177e4SLinus Torvalds /* br_sysfs_if.c */ 144652cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1447348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1448348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 14491da177e4SLinus Torvalds 14501da177e4SLinus Torvalds /* br_sysfs_br.c */ 1451348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1452348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 14531da177e4SLinus Torvalds 14541da177e4SLinus Torvalds #else 14551da177e4SLinus Torvalds 14560cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 14570cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 14580cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 14590cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 14601da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 14611da177e4SLinus Torvalds 14626bc506b4SIdo Schimmel /* br_switchdev.c */ 14636bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 14646bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 14656bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 14666bc506b4SIdo Schimmel struct sk_buff *skb); 14676bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 14686bc506b4SIdo Schimmel const struct sk_buff *skb); 14693922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 14703922285dSArkadi Sharshevsky unsigned long flags, 14713922285dSArkadi Sharshevsky unsigned long mask); 14726b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 14736b26b51bSArkadi Sharshevsky int type); 1474169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1475169327d5SPetr Machata struct netlink_ext_ack *extack); 1476d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1477f1c2eddfSIdo Schimmel 1478f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1479f1c2eddfSIdo Schimmel { 1480f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1481f1c2eddfSIdo Schimmel } 14826bc506b4SIdo Schimmel #else 14836bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 14846bc506b4SIdo Schimmel { 14856bc506b4SIdo Schimmel return 0; 14866bc506b4SIdo Schimmel } 14876bc506b4SIdo Schimmel 14886bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 14896bc506b4SIdo Schimmel struct sk_buff *skb) 14906bc506b4SIdo Schimmel { 14916bc506b4SIdo Schimmel } 14926bc506b4SIdo Schimmel 14936bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 14946bc506b4SIdo Schimmel const struct sk_buff *skb) 14956bc506b4SIdo Schimmel { 14966bc506b4SIdo Schimmel return true; 14976bc506b4SIdo Schimmel } 14983922285dSArkadi Sharshevsky 14993922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 15003922285dSArkadi Sharshevsky unsigned long flags, 15013922285dSArkadi Sharshevsky unsigned long mask) 15023922285dSArkadi Sharshevsky { 15033922285dSArkadi Sharshevsky return 0; 15043922285dSArkadi Sharshevsky } 15056b26b51bSArkadi Sharshevsky 1506d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1507169327d5SPetr Machata u16 vid, u16 flags, 1508169327d5SPetr Machata struct netlink_ext_ack *extack) 1509d66e4348SPetr Machata { 1510d66e4348SPetr Machata return -EOPNOTSUPP; 1511d66e4348SPetr Machata } 1512d66e4348SPetr Machata 1513d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1514d66e4348SPetr Machata { 1515d66e4348SPetr Machata return -EOPNOTSUPP; 1516d66e4348SPetr Machata } 1517d66e4348SPetr Machata 15186b26b51bSArkadi Sharshevsky static inline void 15196b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 15206b26b51bSArkadi Sharshevsky { 15216b26b51bSArkadi Sharshevsky } 1522f1c2eddfSIdo Schimmel 1523f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1524f1c2eddfSIdo Schimmel { 1525f1c2eddfSIdo Schimmel } 15266bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 15276bc506b4SIdo Schimmel 1528057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1529821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1530057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1531057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1532ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1533ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1534ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 15351da177e4SLinus Torvalds #endif 1536