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 241085b53c8SNikolay Aleksandrov struct net_bridge_port_group_sg_key { 242eb1d1641SHerbert Xu struct net_bridge_port *port; 2438ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 244085b53c8SNikolay Aleksandrov }; 245085b53c8SNikolay Aleksandrov 246085b53c8SNikolay Aleksandrov struct net_bridge_port_group { 247085b53c8SNikolay Aleksandrov struct net_bridge_port_group __rcu *next; 248085b53c8SNikolay Aleksandrov struct net_bridge_port_group_sg_key key; 249206e7323SThomas Martitz unsigned char eth_addr[ETH_ALEN] __aligned(2); 2509d06b6d8SElad Raz unsigned char flags; 2518b671779SNikolay Aleksandrov unsigned char filter_mode; 25242c11ccfSNikolay Aleksandrov unsigned char grp_query_rexmit_cnt; 2538f8cb77eSNikolay Aleksandrov unsigned char rt_protocol; 2546ec0d0eeSNikolay Aleksandrov 2558b671779SNikolay Aleksandrov struct hlist_head src_list; 2568b671779SNikolay Aleksandrov unsigned int src_ents; 2576ec0d0eeSNikolay Aleksandrov struct timer_list timer; 25842c11ccfSNikolay Aleksandrov struct timer_list rexmit_timer; 2596ec0d0eeSNikolay Aleksandrov struct hlist_node mglist; 2606ec0d0eeSNikolay Aleksandrov 261085b53c8SNikolay Aleksandrov struct rhash_head rhnode; 262e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2636ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 264eb1d1641SHerbert Xu }; 265eb1d1641SHerbert Xu 2661c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_entry { 26719e3a9c9SNikolay Aleksandrov struct rhash_head rhnode; 268eb1d1641SHerbert Xu struct net_bridge *br; 269e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 2708ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 271ff0fd34eSAndrew Lunn bool host_joined; 2726ec0d0eeSNikolay Aleksandrov 2736ec0d0eeSNikolay Aleksandrov struct timer_list timer; 27419e3a9c9SNikolay Aleksandrov struct hlist_node mdb_node; 2756ec0d0eeSNikolay Aleksandrov 276e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2776ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 278eb1d1641SHerbert Xu }; 279eb1d1641SHerbert Xu 2801f90c7f3SNikolay Aleksandrov struct net_bridge_port { 2811da177e4SLinus Torvalds struct net_bridge *br; 2821da177e4SLinus Torvalds struct net_device *dev; 2831da177e4SLinus Torvalds struct list_head list; 2841da177e4SLinus Torvalds 2851f90c7f3SNikolay Aleksandrov unsigned long flags; 2861f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 2871f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 2881f90c7f3SNikolay Aleksandrov #endif 2892756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 2901f90c7f3SNikolay Aleksandrov 2911da177e4SLinus Torvalds /* STP */ 2921da177e4SLinus Torvalds u8 priority; 2931da177e4SLinus Torvalds u8 state; 2941da177e4SLinus Torvalds u16 port_no; 2951da177e4SLinus Torvalds unsigned char topology_change_ack; 2961da177e4SLinus Torvalds unsigned char config_pending; 2971da177e4SLinus Torvalds port_id port_id; 2981da177e4SLinus Torvalds port_id designated_port; 2991da177e4SLinus Torvalds bridge_id designated_root; 3001da177e4SLinus Torvalds bridge_id designated_bridge; 3011da177e4SLinus Torvalds u32 path_cost; 3021da177e4SLinus Torvalds u32 designated_cost; 3030c03150eSstephen hemminger unsigned long designated_age; 3041da177e4SLinus Torvalds 3051da177e4SLinus Torvalds struct timer_list forward_delay_timer; 3061da177e4SLinus Torvalds struct timer_list hold_timer; 3071da177e4SLinus Torvalds struct timer_list message_age_timer; 3081da177e4SLinus Torvalds struct kobject kobj; 3091da177e4SLinus Torvalds struct rcu_head rcu; 3103982d3d2SFischer, Anna 311eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 31290010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 313cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 31490010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 315cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 316eb1d1641SHerbert Xu unsigned char multicast_router; 3171080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 318eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 319eb1d1641SHerbert Xu struct hlist_head mglist; 320eb1d1641SHerbert Xu struct hlist_node rlist; 321eb1d1641SHerbert Xu #endif 322e0f43752SSimon Arlott 323e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 324e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 325e0f43752SSimon Arlott #endif 32691d2c34aSHerbert Xu 32791d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 32891d2c34aSHerbert Xu struct netpoll *np; 32991d2c34aSHerbert Xu #endif 3306bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 3316bc506b4SIdo Schimmel int offload_fwd_mark; 3326bc506b4SIdo Schimmel #endif 3335af48b59SNikolay Aleksandrov u16 group_fwd_mask; 3342756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 335de179966SVivien Didelot 336de179966SVivien Didelot struct bridge_stp_xstats stp_xstats; 3371da177e4SLinus Torvalds }; 3381da177e4SLinus Torvalds 339705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 340705e0deaSTyler Hicks 341e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 342f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 343e028e4b8SVlad Yasevich 344b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 345b5ed54e9Sstephen hemminger { 346716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 347b5ed54e9Sstephen hemminger } 348b5ed54e9Sstephen hemminger 3491fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 350b5ed54e9Sstephen hemminger { 35135f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 352ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 353b5ed54e9Sstephen hemminger } 354b5ed54e9Sstephen hemminger 3550baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 3560baa10ffSArkadi Sharshevsky { 35735f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 3580baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3590baa10ffSArkadi Sharshevsky } 3600baa10ffSArkadi Sharshevsky 361ae75767eSNikolay Aleksandrov enum net_bridge_opts { 362ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 363ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 3648df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 3658df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 3668df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 367be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 36813cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 369675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 370675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 371675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 372675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 373c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 3743341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 3759163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 37670e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 3779c0ec2e7SMike Manning BROPT_VLAN_BRIDGE_BINDING, 378ae75767eSNikolay Aleksandrov }; 379ae75767eSNikolay Aleksandrov 3801f90c7f3SNikolay Aleksandrov struct net_bridge { 3811da177e4SLinus Torvalds spinlock_t lock; 3821f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 3831da177e4SLinus Torvalds struct list_head port_list; 3841da177e4SLinus Torvalds struct net_device *dev; 3858f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 386ae75767eSNikolay Aleksandrov unsigned long options; 3871f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3881f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3891f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3901f90c7f3SNikolay Aleksandrov u16 default_pvid; 3911f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3921f90c7f3SNikolay Aleksandrov #endif 3931f90c7f3SNikolay Aleksandrov 394eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 39534666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 396efb6de9bSBernhard Thaler union { 3974adf0af6SSimon Wunderlich struct rtable fake_rtable; 398efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 399efb6de9bSBernhard Thaler }; 4004adf0af6SSimon Wunderlich #endif 401515853ccSstephen hemminger u16 group_fwd_mask; 402f2808d22SToshiaki Makita u16 group_fwd_mask_required; 403515853ccSstephen hemminger 4041da177e4SLinus Torvalds /* STP */ 4051da177e4SLinus Torvalds bridge_id designated_root; 4061da177e4SLinus Torvalds bridge_id bridge_id; 4071f90c7f3SNikolay Aleksandrov unsigned char topology_change; 4081f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 4091f90c7f3SNikolay Aleksandrov u16 root_port; 4101da177e4SLinus Torvalds unsigned long max_age; 4111da177e4SLinus Torvalds unsigned long hello_time; 4121da177e4SLinus Torvalds unsigned long forward_delay; 4131da177e4SLinus Torvalds unsigned long ageing_time; 41434d8acd8SVivien Didelot unsigned long bridge_max_age; 4151da177e4SLinus Torvalds unsigned long bridge_hello_time; 4161da177e4SLinus Torvalds unsigned long bridge_forward_delay; 41734d8acd8SVivien Didelot unsigned long bridge_ageing_time; 41835750b0bSNikolay Aleksandrov u32 root_path_cost; 4191da177e4SLinus Torvalds 420fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 4219cde0708SStephen Hemminger 4229cde0708SStephen Hemminger enum { 4239cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 4249cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 4259cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 4269cde0708SStephen Hemminger } stp_enabled; 4279cde0708SStephen Hemminger 428eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 429eb1d1641SHerbert Xu 430eb1d1641SHerbert Xu u32 hash_max; 431eb1d1641SHerbert Xu 432eb1d1641SHerbert Xu u32 multicast_last_member_count; 433eb1d1641SHerbert Xu u32 multicast_startup_query_count; 434eb1d1641SHerbert Xu 4355e923585SNikolay Aleksandrov u8 multicast_igmp_version; 436675779adSNikolay Aleksandrov u8 multicast_router; 437675779adSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 438675779adSNikolay Aleksandrov u8 multicast_mld_version; 439675779adSNikolay Aleksandrov #endif 44035750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 441eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 442eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 443eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 444eb1d1641SHerbert Xu unsigned long multicast_query_interval; 445eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 446eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 447eb1d1641SHerbert Xu 44819e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 449085b53c8SNikolay Aleksandrov struct rhashtable sg_port_tbl; 45019e3a9c9SNikolay Aleksandrov 451e12cec65SNikolay Aleksandrov struct hlist_head mcast_gc_list; 45219e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 453eb1d1641SHerbert Xu struct hlist_head router_list; 454eb1d1641SHerbert Xu 455eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 45690010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 45790010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 458dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 4591080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 460cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 46190010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 46290010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 463dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 464cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 465e12cec65SNikolay Aleksandrov struct work_struct mcast_gc_work; 466eb1d1641SHerbert Xu #endif 467eb1d1641SHerbert Xu 4681da177e4SLinus Torvalds struct timer_list hello_timer; 4691da177e4SLinus Torvalds struct timer_list tcn_timer; 4701da177e4SLinus Torvalds struct timer_list topology_change_timer; 471f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 47243b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 473e028e4b8SVlad Yasevich u32 auto_cnt; 4746bc506b4SIdo Schimmel 4756bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4766bc506b4SIdo Schimmel int offload_fwd_mark; 4776bc506b4SIdo Schimmel #endif 478eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4794b8d7d4cSHoratiu Vultur 4804b8d7d4cSHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 4819b14d1f8SHoratiu Vultur struct list_head mrp_list; 4824b8d7d4cSHoratiu Vultur #endif 4831da177e4SLinus Torvalds }; 4841da177e4SLinus Torvalds 48568b7c895SHerbert Xu struct br_input_skb_cb { 48668b7c895SHerbert Xu struct net_device *brdev; 48793fdd47eSHerbert Xu 4883c171f49SPablo Neira Ayuso u16 frag_max_size; 48932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 490f12064d1SFlorian Westphal u8 igmp; 491f12064d1SFlorian Westphal u8 mrouters_only:1; 49232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 493f12064d1SFlorian Westphal u8 proxyarp_replied:1; 494f12064d1SFlorian Westphal u8 src_port_isolated:1; 49520adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 496f12064d1SFlorian Westphal u8 vlan_filtered:1; 49720adfa1aSVlad Yasevich #endif 498223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 499223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 500223fd0adSFlorian Westphal #endif 5016bc506b4SIdo Schimmel 5026bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 5036bc506b4SIdo Schimmel int offload_fwd_mark; 5046bc506b4SIdo Schimmel #endif 50568b7c895SHerbert Xu }; 50668b7c895SHerbert Xu 50768b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 50868b7c895SHerbert Xu 50932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 51032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 51132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 51232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 51332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 51432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 51528a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 51628a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 51728a16c97Sstephen hemminger 51828a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 51928a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 52028a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 52128a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 52228a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 52328a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 52428a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 52528a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 52628a16c97Sstephen hemminger 52728a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 52828a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 52928a16c97Sstephen hemminger 5301da177e4SLinus Torvalds /* called under bridge lock */ 5311da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 5321da177e4SLinus Torvalds { 5331da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 5341da177e4SLinus Torvalds } 5351da177e4SLinus Torvalds 5362594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 5372594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 5382594e906SNikolay Aleksandrov { 5392594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 5402594e906SNikolay Aleksandrov } 5412594e906SNikolay Aleksandrov 5422594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 5432594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 5442594e906SNikolay Aleksandrov { 5452594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 5462594e906SNikolay Aleksandrov } 5472594e906SNikolay Aleksandrov 5486be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 5492594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 5502594e906SNikolay Aleksandrov { 5512594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 5522594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 5532594e906SNikolay Aleksandrov return true; 5542594e906SNikolay Aleksandrov else 5552594e906SNikolay Aleksandrov return false; 5562594e906SNikolay Aleksandrov } 5572594e906SNikolay Aleksandrov 5582594e906SNikolay Aleksandrov return true; 5592594e906SNikolay Aleksandrov } 5602594e906SNikolay Aleksandrov 5615d1fcaf3SNikolay Aleksandrov static inline bool nbp_state_should_learn(const struct net_bridge_port *p) 5625d1fcaf3SNikolay Aleksandrov { 5635d1fcaf3SNikolay Aleksandrov return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; 5645d1fcaf3SNikolay Aleksandrov } 5655d1fcaf3SNikolay Aleksandrov 5668f4cc940SNikolay Aleksandrov static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack) 5675a46facbSNikolay Aleksandrov { 5688f4cc940SNikolay Aleksandrov bool ret = vid > 0 && vid < VLAN_VID_MASK; 5698f4cc940SNikolay Aleksandrov 5708f4cc940SNikolay Aleksandrov if (!ret) 5718f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid"); 5728f4cc940SNikolay Aleksandrov 5738f4cc940SNikolay Aleksandrov return ret; 5745a46facbSNikolay Aleksandrov } 5755a46facbSNikolay Aleksandrov 5765a46facbSNikolay Aleksandrov static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, 5778f4cc940SNikolay Aleksandrov const struct bridge_vlan_info *last, 5788f4cc940SNikolay Aleksandrov struct netlink_ext_ack *extack) 5795a46facbSNikolay Aleksandrov { 5805a46facbSNikolay Aleksandrov /* pvid flag is not allowed in ranges */ 5818f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_PVID) { 5828f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range"); 5835a46facbSNikolay Aleksandrov return false; 5848f4cc940SNikolay Aleksandrov } 5855a46facbSNikolay Aleksandrov 5865a46facbSNikolay Aleksandrov /* when cur is the range end, check if: 5875a46facbSNikolay Aleksandrov * - it has range start flag 5885a46facbSNikolay Aleksandrov * - range ids are invalid (end is equal to or before start) 5895a46facbSNikolay Aleksandrov */ 5905a46facbSNikolay Aleksandrov if (last) { 5918f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { 5928f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one"); 5935a46facbSNikolay Aleksandrov return false; 5948f4cc940SNikolay Aleksandrov } else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) { 5958f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing"); 5968f4cc940SNikolay Aleksandrov return false; 5978f4cc940SNikolay Aleksandrov } else if (cur->vid <= last->vid) { 5988f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); 5998f4cc940SNikolay Aleksandrov return false; 6008f4cc940SNikolay Aleksandrov } 6018f4cc940SNikolay Aleksandrov } 6028f4cc940SNikolay Aleksandrov 6038f4cc940SNikolay Aleksandrov /* check for required range flags */ 6048f4cc940SNikolay Aleksandrov if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 6058f4cc940SNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END))) { 6068f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing"); 6075a46facbSNikolay Aleksandrov return false; 6085a46facbSNikolay Aleksandrov } 6095a46facbSNikolay Aleksandrov 6105a46facbSNikolay Aleksandrov return true; 6115a46facbSNikolay Aleksandrov } 6125a46facbSNikolay Aleksandrov 613f545923bSNikolay Aleksandrov static inline int br_afspec_cmd_to_rtm(int cmd) 614f545923bSNikolay Aleksandrov { 615f545923bSNikolay Aleksandrov switch (cmd) { 616f545923bSNikolay Aleksandrov case RTM_SETLINK: 617f545923bSNikolay Aleksandrov return RTM_NEWVLAN; 618f545923bSNikolay Aleksandrov case RTM_DELLINK: 619f545923bSNikolay Aleksandrov return RTM_DELVLAN; 620f545923bSNikolay Aleksandrov } 621f545923bSNikolay Aleksandrov 622f545923bSNikolay Aleksandrov return 0; 623f545923bSNikolay Aleksandrov } 624f545923bSNikolay Aleksandrov 625ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 626ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 627ae75767eSNikolay Aleksandrov { 628ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 629ae75767eSNikolay Aleksandrov } 630ae75767eSNikolay Aleksandrov 631a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 632a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 633a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 634a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 635a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 636a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 637a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 638a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 639ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 640ae75767eSNikolay Aleksandrov 6411da177e4SLinus Torvalds /* br_device.c */ 642348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 643348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 644348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 645cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 64691d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 64791d2c34aSHerbert Xu struct sk_buff *skb) 64891d2c34aSHerbert Xu { 649f78ed220SEric Dumazet netpoll_send_skb(p->np, skb); 65091d2c34aSHerbert Xu } 65191d2c34aSHerbert Xu 652a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 653348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 65491d2c34aSHerbert Xu #else 6559f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 65691d2c34aSHerbert Xu struct sk_buff *skb) 65791d2c34aSHerbert Xu { 65891d2c34aSHerbert Xu } 65991d2c34aSHerbert Xu 660a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 66191d2c34aSHerbert Xu { 66291d2c34aSHerbert Xu return 0; 66391d2c34aSHerbert Xu } 66491d2c34aSHerbert Xu 66591d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 66691d2c34aSHerbert Xu { 66791d2c34aSHerbert Xu } 668cfb478daSstephen hemminger #endif 6691da177e4SLinus Torvalds 6701da177e4SLinus Torvalds /* br_fdb.c */ 671348662a1SJoe Perches int br_fdb_init(void); 672348662a1SJoe Perches void br_fdb_fini(void); 673eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 674eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 675348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 676424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 677424bb9c9SToshiaki Makita const struct net_bridge_port *p, 678424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 679348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 680348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 681f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 682348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 6831ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 684bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 685bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 686bfd0aeacSNikolay Aleksandrov __u16 vid); 687348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 688348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 689348662a1SJoe Perches unsigned long off); 690348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 691348662a1SJoe Perches const unsigned char *addr, u16 vid); 692348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 693be0c5677SNikolay Aleksandrov const unsigned char *addr, u16 vid, unsigned long flags); 69477162022SJohn Fastabend 695348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 696f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 697348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 69887b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 69987b0984eSPetr Machata struct netlink_ext_ack *extack); 700348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 701d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 70247674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 70347674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 70447674562SRoopa Prabhu struct netlink_ext_ack *extack); 7058db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 7068db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 7073aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 708161d82deSPetr Machata const unsigned char *addr, u16 vid, 709161d82deSPetr Machata bool swdev_notify); 7103aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 711161d82deSPetr Machata const unsigned char *addr, u16 vid, 712161d82deSPetr Machata bool swdev_notify); 7139fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 714e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 7151da177e4SLinus Torvalds 7161da177e4SLinus Torvalds /* br_forward.c */ 7178addd5e7SNikolay Aleksandrov enum br_pkt_type { 7188addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 7198addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 7208addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 7218addd5e7SNikolay Aleksandrov }; 7220c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 723b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 72437b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 7250c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 72637b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 7278addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 7281da177e4SLinus Torvalds 7297d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 7307d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 7317d850abdSNikolay Aleksandrov const struct sk_buff *skb) 7327d850abdSNikolay Aleksandrov { 7337d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 7347d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 7357d850abdSNikolay Aleksandrov } 7367d850abdSNikolay Aleksandrov 7371da177e4SLinus Torvalds /* br_if.c */ 738faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 739348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 740348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 741ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 742ca752be0SDavid Ahern struct netlink_ext_ack *extack); 743348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 744804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 745348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 746c8f44affSMichał Mirosław netdev_features_t features); 747e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 7482796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 7492756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 7501da177e4SLinus Torvalds 7511da177e4SLinus Torvalds /* br_input.c */ 7520c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 7539eb8eff0SVladimir Oltean rx_handler_func_t *br_get_rx_handler(const struct net_device *dev); 7541da177e4SLinus Torvalds 755859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 756859828c0SJiri Pirko { 7579eb8eff0SVladimir Oltean return rcu_dereference(dev->rx_handler) == br_get_rx_handler(dev); 758859828c0SJiri Pirko } 759859828c0SJiri Pirko 7604d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 7614d4fd361SPetr Machata { 7629eb8eff0SVladimir Oltean return rcu_dereference_rtnl(dev->rx_handler) == br_get_rx_handler(dev); 7634d4fd361SPetr Machata } 7644d4fd361SPetr Machata 765859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 766859828c0SJiri Pirko { 767859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 768859828c0SJiri Pirko } 769859828c0SJiri Pirko 7704d4fd361SPetr Machata static inline struct net_bridge_port * 7714d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 7724d4fd361SPetr Machata { 7734d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 7744d4fd361SPetr Machata } 7754d4fd361SPetr Machata 7761da177e4SLinus Torvalds /* br_ioctl.c */ 777348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 778348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 779348662a1SJoe Perches void __user *arg); 7801da177e4SLinus Torvalds 781eb1d1641SHerbert Xu /* br_multicast.c */ 782eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 783348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 784fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 785348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 786eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 7871080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 788348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 789348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 790348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 791348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 792348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 793348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 794e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 79537b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 79637b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 797348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 798348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 799348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 800348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 801348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 8025e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 803aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 804aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 805aa2ae3e7SNikolay Aleksandrov #endif 806348662a1SJoe Perches struct net_bridge_mdb_entry * 80719e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 808348662a1SJoe Perches struct net_bridge_mdb_entry * 80919e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 810348662a1SJoe Perches struct net_bridge_port_group * 811348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 812762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 8138b671779SNikolay Aleksandrov unsigned char flags, const unsigned char *src, 8148f8cb77eSNikolay Aleksandrov u8 filter_mode, u8 rt_protocol); 81519e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 81619e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 81781f19838SNikolay Aleksandrov void br_mdb_notify(struct net_device *dev, struct net_bridge_mdb_entry *mp, 81881f19838SNikolay Aleksandrov struct net_bridge_port_group *pg, int type); 819949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 820949f1e39SSatish Ashok int type); 821681590bdSNikolay Aleksandrov void br_multicast_del_pg(struct net_bridge_mdb_entry *mp, 822681590bdSNikolay Aleksandrov struct net_bridge_port_group *pg, 823681590bdSNikolay Aleksandrov struct net_bridge_port_group __rcu **pp); 8241080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 825a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 8261080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 827b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 8281080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 8291080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 8301080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 83119e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 83219e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 8331bc844eeSNikolay Aleksandrov void br_multicast_host_join(struct net_bridge_mdb_entry *mp, bool notify); 8341bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 83585b35269SSridhar Samudrala 836cfd56754SCong Wang #define mlock_dereference(X, br) \ 837cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 838cfd56754SCong Wang 83985b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 84085b35269SSridhar Samudrala { 84185b35269SSridhar Samudrala return br->multicast_router == 2 || 84285b35269SSridhar Samudrala (br->multicast_router == 1 && 84385b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 84485b35269SSridhar Samudrala } 845b00589afSLinus Lüssing 846cc0fdd80SLinus Lüssing static inline bool 847cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 8480888d5f3Sdaniel struct bridge_mcast_other_query *querier, 8490888d5f3Sdaniel const bool is_ipv6) 850b00589afSLinus Lüssing { 8510888d5f3Sdaniel bool own_querier_enabled; 8520888d5f3Sdaniel 853675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 854675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 8550888d5f3Sdaniel own_querier_enabled = false; 8560888d5f3Sdaniel else 8570888d5f3Sdaniel own_querier_enabled = true; 8580888d5f3Sdaniel } else { 8590888d5f3Sdaniel own_querier_enabled = false; 8600888d5f3Sdaniel } 8610888d5f3Sdaniel 862cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 8630888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 864cc0fdd80SLinus Lüssing } 865cc0fdd80SLinus Lüssing 866cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 867cc0fdd80SLinus Lüssing struct ethhdr *eth) 868cc0fdd80SLinus Lüssing { 869cc0fdd80SLinus Lüssing switch (eth->h_proto) { 870cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 8710888d5f3Sdaniel return __br_multicast_querier_exists(br, 8720888d5f3Sdaniel &br->ip4_other_query, false); 873cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 874cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 8750888d5f3Sdaniel return __br_multicast_querier_exists(br, 8760888d5f3Sdaniel &br->ip6_other_query, true); 877cc0fdd80SLinus Lüssing #endif 878cc0fdd80SLinus Lüssing default: 879cc0fdd80SLinus Lüssing return false; 880cc0fdd80SLinus Lüssing } 881b00589afSLinus Lüssing } 8821080ab95SNikolay Aleksandrov 88388d4bd18SNikolay Aleksandrov static inline bool br_multicast_is_star_g(const struct br_ip *ip) 88488d4bd18SNikolay Aleksandrov { 88588d4bd18SNikolay Aleksandrov switch (ip->proto) { 88688d4bd18SNikolay Aleksandrov case htons(ETH_P_IP): 88788d4bd18SNikolay Aleksandrov return ipv4_is_zeronet(ip->src.ip4); 88888d4bd18SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 88988d4bd18SNikolay Aleksandrov case htons(ETH_P_IPV6): 89088d4bd18SNikolay Aleksandrov return ipv6_addr_any(&ip->src.ip6); 89188d4bd18SNikolay Aleksandrov #endif 89288d4bd18SNikolay Aleksandrov default: 89388d4bd18SNikolay Aleksandrov return false; 89488d4bd18SNikolay Aleksandrov } 89588d4bd18SNikolay Aleksandrov } 89688d4bd18SNikolay Aleksandrov 8971080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 8981080ab95SNikolay Aleksandrov { 8991080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 9001080ab95SNikolay Aleksandrov } 90142c11ccfSNikolay Aleksandrov 90242c11ccfSNikolay Aleksandrov static inline unsigned long br_multicast_lmqt(const struct net_bridge *br) 90342c11ccfSNikolay Aleksandrov { 90442c11ccfSNikolay Aleksandrov return br->multicast_last_member_interval * 90542c11ccfSNikolay Aleksandrov br->multicast_last_member_count; 90642c11ccfSNikolay Aleksandrov } 9070436862eSNikolay Aleksandrov 9080436862eSNikolay Aleksandrov static inline unsigned long br_multicast_gmi(const struct net_bridge *br) 9090436862eSNikolay Aleksandrov { 9100436862eSNikolay Aleksandrov /* use the RFC default of 2 for QRV */ 9110436862eSNikolay Aleksandrov return 2 * br->multicast_query_interval + 9120436862eSNikolay Aleksandrov br->multicast_query_response_interval; 9130436862eSNikolay Aleksandrov } 914eb1d1641SHerbert Xu #else 915eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 916eb1d1641SHerbert Xu struct net_bridge_port *port, 91706499098SVlad Yasevich struct sk_buff *skb, 91806499098SVlad Yasevich u16 vid) 919eb1d1641SHerbert Xu { 920eb1d1641SHerbert Xu return 0; 921eb1d1641SHerbert Xu } 922eb1d1641SHerbert Xu 923eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 924fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 925eb1d1641SHerbert Xu { 926eb1d1641SHerbert Xu return NULL; 927eb1d1641SHerbert Xu } 928eb1d1641SHerbert Xu 9291080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 930eb1d1641SHerbert Xu { 9311080ab95SNikolay Aleksandrov return 0; 932eb1d1641SHerbert Xu } 933eb1d1641SHerbert Xu 934eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 935eb1d1641SHerbert Xu { 936eb1d1641SHerbert Xu } 937eb1d1641SHerbert Xu 938eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 939eb1d1641SHerbert Xu { 940eb1d1641SHerbert Xu } 941eb1d1641SHerbert Xu 942eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 943eb1d1641SHerbert Xu { 944eb1d1641SHerbert Xu } 945eb1d1641SHerbert Xu 946eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 947eb1d1641SHerbert Xu { 948eb1d1641SHerbert Xu } 949eb1d1641SHerbert Xu 950eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 951eb1d1641SHerbert Xu { 952eb1d1641SHerbert Xu } 953eb1d1641SHerbert Xu 954eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 955eb1d1641SHerbert Xu { 956eb1d1641SHerbert Xu } 9575cb5e947SHerbert Xu 958a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 959a7ce45a7SNikolay Aleksandrov { 960a7ce45a7SNikolay Aleksandrov } 961a7ce45a7SNikolay Aleksandrov 96237b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 96337b090e6SNikolay Aleksandrov struct sk_buff *skb, 96437b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 9655cb5e947SHerbert Xu { 9665cb5e947SHerbert Xu } 9675cb5e947SHerbert Xu 968eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 969eb1d1641SHerbert Xu { 97003aaa9e2SGustavo A. R. Silva return false; 971eb1d1641SHerbert Xu } 97237b090e6SNikolay Aleksandrov 973cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 974cc0fdd80SLinus Lüssing struct ethhdr *eth) 975b00589afSLinus Lüssing { 976b00589afSLinus Lüssing return false; 977b00589afSLinus Lüssing } 97837b090e6SNikolay Aleksandrov 979fdb184d1SRami Rosen static inline void br_mdb_init(void) 980fdb184d1SRami Rosen { 981fdb184d1SRami Rosen } 98237b090e6SNikolay Aleksandrov 983fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 984fdb184d1SRami Rosen { 985fdb184d1SRami Rosen } 9861080ab95SNikolay Aleksandrov 98719e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 98819e3a9c9SNikolay Aleksandrov { 98919e3a9c9SNikolay Aleksandrov return 0; 99019e3a9c9SNikolay Aleksandrov } 99119e3a9c9SNikolay Aleksandrov 99219e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 99319e3a9c9SNikolay Aleksandrov { 99419e3a9c9SNikolay Aleksandrov } 99519e3a9c9SNikolay Aleksandrov 9961080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 9971080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 998a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 999a65056ecSNikolay Aleksandrov u8 type, u8 dir) 10001080ab95SNikolay Aleksandrov { 10011080ab95SNikolay Aleksandrov } 10021080ab95SNikolay Aleksandrov 10031080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 10041080ab95SNikolay Aleksandrov { 10051080ab95SNikolay Aleksandrov return 0; 10061080ab95SNikolay Aleksandrov } 10071080ab95SNikolay Aleksandrov 1008b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 1009b6fe0440SIdo Schimmel { 1010b6fe0440SIdo Schimmel } 1011b6fe0440SIdo Schimmel 10121080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 10131080ab95SNikolay Aleksandrov { 10141080ab95SNikolay Aleksandrov return 0; 10151080ab95SNikolay Aleksandrov } 101685b35269SSridhar Samudrala #endif 1017eb1d1641SHerbert Xu 1018243a2e63SVlad Yasevich /* br_vlan.c */ 1019243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 102077751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 102177751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 1022a580c76dSNikolay Aleksandrov u16 *vid, u8 *state); 102377751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 102485f46c6bSVlad Yasevich const struct sk_buff *skb); 1025e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 1026348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 102711538d03SRoopa Prabhu const struct net_bridge_port *port, 10282594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 102978851988SVlad Yasevich struct sk_buff *skb); 1030f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1031169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1032348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 1033348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 10342594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 1035204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 1036a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 1037348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 1038d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 1039204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 10406dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 10419163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 10425be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 104396a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 1044169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 1045169327d5SPetr Machata struct netlink_ext_ack *extack); 1046f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1047169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1048348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 1049348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 1050169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 10512594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 1052a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 1053a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 10549c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 1055091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 10569c0ec2e7SMike Manning void *ptr); 10578dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void); 10588dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void); 1059cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 1060cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1061cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1062cf5bddb9SNikolay Aleksandrov int cmd); 1063a5d29ae2SNikolay Aleksandrov bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1064a5d29ae2SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 1065a37b85c9SVlad Yasevich 10662594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 1067a37b85c9SVlad Yasevich const struct net_bridge *br) 1068a37b85c9SVlad Yasevich { 1069907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 1070a37b85c9SVlad Yasevich } 1071a37b85c9SVlad Yasevich 10722594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 1073a37b85c9SVlad Yasevich const struct net_bridge_port *p) 1074a37b85c9SVlad Yasevich { 1075907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 1076907b1e6eSNikolay Aleksandrov } 1077907b1e6eSNikolay Aleksandrov 1078907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1079907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1080907b1e6eSNikolay Aleksandrov { 1081907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 1082907b1e6eSNikolay Aleksandrov } 1083907b1e6eSNikolay Aleksandrov 1084907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1085907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1086907b1e6eSNikolay Aleksandrov { 1087907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 1088a37b85c9SVlad Yasevich } 1089a37b85c9SVlad Yasevich 1090a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 1091a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 1092a37b85c9SVlad Yasevich */ 1093a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 1094a37b85c9SVlad Yasevich { 1095a37b85c9SVlad Yasevich int err = 0; 1096a37b85c9SVlad Yasevich 10972594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 10985978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 10992594e906SNikolay Aleksandrov } else { 1100a37b85c9SVlad Yasevich *vid = 0; 1101a37b85c9SVlad Yasevich err = -EINVAL; 1102a37b85c9SVlad Yasevich } 1103a37b85c9SVlad Yasevich 1104a37b85c9SVlad Yasevich return err; 1105a37b85c9SVlad Yasevich } 110678851988SVlad Yasevich 110777751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 110878851988SVlad Yasevich { 110977751ee8SNikolay Aleksandrov if (!vg) 11105be5a2dfSVlad Yasevich return 0; 11115be5a2dfSVlad Yasevich 111278851988SVlad Yasevich smp_rmb(); 111377751ee8SNikolay Aleksandrov return vg->pvid; 111478851988SVlad Yasevich } 111578851988SVlad Yasevich 11168dcea187SNikolay Aleksandrov static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) 11178dcea187SNikolay Aleksandrov { 11188dcea187SNikolay Aleksandrov return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags; 11198dcea187SNikolay Aleksandrov } 1120243a2e63SVlad Yasevich #else 112177751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 112277751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 11232594e906SNikolay Aleksandrov struct sk_buff *skb, 1124a580c76dSNikolay Aleksandrov u16 *vid, u8 *state) 11252594e906SNikolay Aleksandrov { 11262594e906SNikolay Aleksandrov return true; 11272594e906SNikolay Aleksandrov } 11282594e906SNikolay Aleksandrov 11292594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 113085f46c6bSVlad Yasevich const struct sk_buff *skb) 113185f46c6bSVlad Yasevich { 113285f46c6bSVlad Yasevich return true; 113385f46c6bSVlad Yasevich } 113485f46c6bSVlad Yasevich 1135e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 1136e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 1137e0d7968aSToshiaki Makita { 1138e0d7968aSToshiaki Makita return true; 1139e0d7968aSToshiaki Makita } 1140e0d7968aSToshiaki Makita 114178851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 114211538d03SRoopa Prabhu const struct net_bridge_port *port, 11432594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 114478851988SVlad Yasevich struct sk_buff *skb) 114578851988SVlad Yasevich { 114678851988SVlad Yasevich return skb; 114778851988SVlad Yasevich } 114878851988SVlad Yasevich 1149f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1150169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1151243a2e63SVlad Yasevich { 1152f418af63SNikolay Aleksandrov *changed = false; 1153243a2e63SVlad Yasevich return -EOPNOTSUPP; 1154243a2e63SVlad Yasevich } 1155243a2e63SVlad Yasevich 1156243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 1157243a2e63SVlad Yasevich { 1158243a2e63SVlad Yasevich return -EOPNOTSUPP; 1159243a2e63SVlad Yasevich } 1160243a2e63SVlad Yasevich 1161243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1162243a2e63SVlad Yasevich { 1163243a2e63SVlad Yasevich } 1164243a2e63SVlad Yasevich 1165204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1166204177f3SToshiaki Makita { 1167204177f3SToshiaki Makita } 1168204177f3SToshiaki Makita 11695be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 11708580e211SToshiaki Makita { 11715be5a2dfSVlad Yasevich return 0; 11728580e211SToshiaki Makita } 11738580e211SToshiaki Makita 1174f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1175169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1176243a2e63SVlad Yasevich { 1177f418af63SNikolay Aleksandrov *changed = false; 1178243a2e63SVlad Yasevich return -EOPNOTSUPP; 1179243a2e63SVlad Yasevich } 1180243a2e63SVlad Yasevich 1181243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1182243a2e63SVlad Yasevich { 1183243a2e63SVlad Yasevich return -EOPNOTSUPP; 1184243a2e63SVlad Yasevich } 1185243a2e63SVlad Yasevich 1186243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1187243a2e63SVlad Yasevich { 1188243a2e63SVlad Yasevich } 1189243a2e63SVlad Yasevich 11902594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 11912594e906SNikolay Aleksandrov u16 vid) 1192a37b85c9SVlad Yasevich { 1193a37b85c9SVlad Yasevich return NULL; 1194a37b85c9SVlad Yasevich } 1195bc9a25d2SVlad Yasevich 1196169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1197169327d5SPetr Machata struct netlink_ext_ack *extack) 11985be5a2dfSVlad Yasevich { 11995be5a2dfSVlad Yasevich return 0; 12005be5a2dfSVlad Yasevich } 12015be5a2dfSVlad Yasevich 120278851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1203a37b85c9SVlad Yasevich { 1204a37b85c9SVlad Yasevich return 0; 1205a37b85c9SVlad Yasevich } 12062594e906SNikolay Aleksandrov 120777751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 120878851988SVlad Yasevich { 12093df6bf45SVlad Yasevich return 0; 121078851988SVlad Yasevich } 12112796d0c6SVlad Yasevich 1212a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1213a7854037SNikolay Aleksandrov unsigned long val) 1214a7854037SNikolay Aleksandrov { 1215a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1216a7854037SNikolay Aleksandrov } 12172594e906SNikolay Aleksandrov 12182594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 12192594e906SNikolay Aleksandrov u32 filter_mask) 12202594e906SNikolay Aleksandrov { 12212594e906SNikolay Aleksandrov return 0; 12222594e906SNikolay Aleksandrov } 12232594e906SNikolay Aleksandrov 12242594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 12252594e906SNikolay Aleksandrov const struct net_bridge *br) 12262594e906SNikolay Aleksandrov { 12272594e906SNikolay Aleksandrov return NULL; 12282594e906SNikolay Aleksandrov } 12292594e906SNikolay Aleksandrov 12302594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 12312594e906SNikolay Aleksandrov const struct net_bridge_port *p) 12322594e906SNikolay Aleksandrov { 12332594e906SNikolay Aleksandrov return NULL; 12342594e906SNikolay Aleksandrov } 1235907b1e6eSNikolay Aleksandrov 1236907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1237907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1238907b1e6eSNikolay Aleksandrov { 1239907b1e6eSNikolay Aleksandrov return NULL; 1240907b1e6eSNikolay Aleksandrov } 1241907b1e6eSNikolay Aleksandrov 1242907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1243907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1244907b1e6eSNikolay Aleksandrov { 1245907b1e6eSNikolay Aleksandrov return NULL; 1246907b1e6eSNikolay Aleksandrov } 1247a60c0903SNikolay Aleksandrov 1248a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1249a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1250a60c0903SNikolay Aleksandrov { 1251a60c0903SNikolay Aleksandrov } 12529c0ec2e7SMike Manning 12539c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 12549c0ec2e7SMike Manning unsigned long event) 12559c0ec2e7SMike Manning { 12569c0ec2e7SMike Manning } 12579c0ec2e7SMike Manning 1258091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 12599c0ec2e7SMike Manning unsigned long event, void *ptr) 12609c0ec2e7SMike Manning { 1261091adf9bSNikolay Aleksandrov return 0; 12629c0ec2e7SMike Manning } 12638dcea187SNikolay Aleksandrov 12648dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_init(void) 12658dcea187SNikolay Aleksandrov { 12668dcea187SNikolay Aleksandrov } 12678dcea187SNikolay Aleksandrov 12688dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_uninit(void) 12698dcea187SNikolay Aleksandrov { 12708dcea187SNikolay Aleksandrov } 1271cf5bddb9SNikolay Aleksandrov 1272cf5bddb9SNikolay Aleksandrov static inline void br_vlan_notify(const struct net_bridge *br, 1273cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1274cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1275cf5bddb9SNikolay Aleksandrov int cmd) 1276cf5bddb9SNikolay Aleksandrov { 1277cf5bddb9SNikolay Aleksandrov } 1278528ae84aSNikolay Aleksandrov 1279528ae84aSNikolay Aleksandrov static inline bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1280528ae84aSNikolay Aleksandrov const struct net_bridge_vlan *range_end) 1281528ae84aSNikolay Aleksandrov { 1282528ae84aSNikolay Aleksandrov return true; 1283528ae84aSNikolay Aleksandrov } 1284243a2e63SVlad Yasevich #endif 1285243a2e63SVlad Yasevich 12867a53e718SNikolay Aleksandrov /* br_vlan_options.c */ 12877a53e718SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 128899f7c5e0SNikolay Aleksandrov bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, 128999f7c5e0SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 12907a53e718SNikolay Aleksandrov bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v); 12917a53e718SNikolay Aleksandrov size_t br_vlan_opts_nl_size(void); 1292a5d29ae2SNikolay Aleksandrov int br_vlan_process_options(const struct net_bridge *br, 1293a5d29ae2SNikolay Aleksandrov const struct net_bridge_port *p, 1294a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_start, 1295a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_end, 1296a5d29ae2SNikolay Aleksandrov struct nlattr **tb, 1297a5d29ae2SNikolay Aleksandrov struct netlink_ext_ack *extack); 1298a580c76dSNikolay Aleksandrov 1299a580c76dSNikolay Aleksandrov /* vlan state manipulation helpers using *_ONCE to annotate lock-free access */ 1300a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v) 1301a580c76dSNikolay Aleksandrov { 1302a580c76dSNikolay Aleksandrov return READ_ONCE(v->state); 1303a580c76dSNikolay Aleksandrov } 1304a580c76dSNikolay Aleksandrov 1305a580c76dSNikolay Aleksandrov static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state) 1306a580c76dSNikolay Aleksandrov { 1307a580c76dSNikolay Aleksandrov WRITE_ONCE(v->state, state); 1308a580c76dSNikolay Aleksandrov } 1309a580c76dSNikolay Aleksandrov 1310a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg) 1311a580c76dSNikolay Aleksandrov { 1312a580c76dSNikolay Aleksandrov return READ_ONCE(vg->pvid_state); 1313a580c76dSNikolay Aleksandrov } 1314a580c76dSNikolay Aleksandrov 1315a580c76dSNikolay Aleksandrov static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg, 1316a580c76dSNikolay Aleksandrov u8 state) 1317a580c76dSNikolay Aleksandrov { 1318a580c76dSNikolay Aleksandrov WRITE_ONCE(vg->pvid_state, state); 1319a580c76dSNikolay Aleksandrov } 1320a580c76dSNikolay Aleksandrov 1321a580c76dSNikolay Aleksandrov /* learn_allow is true at ingress and false at egress */ 1322a580c76dSNikolay Aleksandrov static inline bool br_vlan_state_allowed(u8 state, bool learn_allow) 1323a580c76dSNikolay Aleksandrov { 1324a580c76dSNikolay Aleksandrov switch (state) { 1325a580c76dSNikolay Aleksandrov case BR_STATE_LEARNING: 1326a580c76dSNikolay Aleksandrov return learn_allow; 1327a580c76dSNikolay Aleksandrov case BR_STATE_FORWARDING: 1328a580c76dSNikolay Aleksandrov return true; 1329a580c76dSNikolay Aleksandrov default: 1330a580c76dSNikolay Aleksandrov return false; 1331a580c76dSNikolay Aleksandrov } 1332a580c76dSNikolay Aleksandrov } 13337a53e718SNikolay Aleksandrov #endif 13347a53e718SNikolay Aleksandrov 13351a4ba64dSPablo Neira Ayuso struct nf_br_ops { 13361a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 13371a4ba64dSPablo Neira Ayuso }; 13381a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 13391a4ba64dSPablo Neira Ayuso 13401da177e4SLinus Torvalds /* br_netfilter.c */ 134134666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 134234666d46SPablo Neira Ayuso int br_nf_core_init(void); 134334666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1344348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1345c0909713SStephen Hemminger #else 134634666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 134734666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 13484adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1349c0909713SStephen Hemminger #endif 13501da177e4SLinus Torvalds 13511da177e4SLinus Torvalds /* br_stp.c */ 1352775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1353348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1354348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1355348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 13561da177e4SLinus Torvalds 1357348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1358348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1359348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1360348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 136182dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 13629e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 136314f98f25Sstephen hemminger 136414f98f25Sstephen hemminger 13651da177e4SLinus Torvalds /* br_stp_if.c */ 1366348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1367348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1368419dba8aSHoratiu Vultur int br_stp_set_enabled(struct net_bridge *br, unsigned long val, 1369419dba8aSHoratiu Vultur struct netlink_ext_ack *extack); 1370348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1371348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1372348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1373348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1374348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1375348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1376348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1377348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 13781da177e4SLinus Torvalds 13791da177e4SLinus Torvalds /* br_stp_bpdu.c */ 13807c85fbf0SPatrick McHardy struct stp_proto; 1381348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 13827c85fbf0SPatrick McHardy struct net_device *dev); 13831da177e4SLinus Torvalds 13841da177e4SLinus Torvalds /* br_stp_timer.c */ 1385348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1386348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1387348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 13881da177e4SLinus Torvalds 13891da177e4SLinus Torvalds /* br.c */ 1390e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1391da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1392da678292SMichał Mirosław #endif 13931da177e4SLinus Torvalds 139465369933SHoratiu Vultur /* br_mrp.c */ 139565369933SHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 139665369933SHoratiu Vultur int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 139765369933SHoratiu Vultur struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 139865369933SHoratiu Vultur int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb); 139965369933SHoratiu Vultur bool br_mrp_enabled(struct net_bridge *br); 140065369933SHoratiu Vultur void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p); 1401df42ef22SHoratiu Vultur int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br); 140265369933SHoratiu Vultur #else 140365369933SHoratiu Vultur static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 140465369933SHoratiu Vultur struct nlattr *attr, int cmd, 140565369933SHoratiu Vultur struct netlink_ext_ack *extack) 140665369933SHoratiu Vultur { 140765369933SHoratiu Vultur return -EOPNOTSUPP; 140865369933SHoratiu Vultur } 140965369933SHoratiu Vultur 141065369933SHoratiu Vultur static inline int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb) 141165369933SHoratiu Vultur { 141265369933SHoratiu Vultur return 0; 141365369933SHoratiu Vultur } 141465369933SHoratiu Vultur 141565369933SHoratiu Vultur static inline bool br_mrp_enabled(struct net_bridge *br) 141665369933SHoratiu Vultur { 14178741e184SJason Yan return false; 141865369933SHoratiu Vultur } 141965369933SHoratiu Vultur 142065369933SHoratiu Vultur static inline void br_mrp_port_del(struct net_bridge *br, 142165369933SHoratiu Vultur struct net_bridge_port *p) 142265369933SHoratiu Vultur { 142365369933SHoratiu Vultur } 1424df42ef22SHoratiu Vultur 1425df42ef22SHoratiu Vultur static inline int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br) 1426df42ef22SHoratiu Vultur { 1427df42ef22SHoratiu Vultur return 0; 1428df42ef22SHoratiu Vultur } 1429df42ef22SHoratiu Vultur 143065369933SHoratiu Vultur #endif 143165369933SHoratiu Vultur 143211dc1f36SStephen Hemminger /* br_netlink.c */ 1433149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1434348662a1SJoe Perches int br_netlink_init(void); 1435348662a1SJoe Perches void br_netlink_fini(void); 143692899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 143792899063SNikolay Aleksandrov const struct net_bridge_port *port); 14382fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 14392fd527b7SPetr Machata struct netlink_ext_ack *extack); 1440add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1441348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 144246c264daSNicolas Dichtel u32 filter_mask, int nlflags); 1443f26b2965SNikolay Aleksandrov int br_process_vlan_info(struct net_bridge *br, 1444f26b2965SNikolay Aleksandrov struct net_bridge_port *p, int cmd, 1445f26b2965SNikolay Aleksandrov struct bridge_vlan_info *vinfo_curr, 1446f26b2965SNikolay Aleksandrov struct bridge_vlan_info **vinfo_last, 1447f26b2965SNikolay Aleksandrov bool *changed, 1448f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack); 144911dc1f36SStephen Hemminger 14501da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 14511da177e4SLinus Torvalds /* br_sysfs_if.c */ 145252cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1453348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1454348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 14551da177e4SLinus Torvalds 14561da177e4SLinus Torvalds /* br_sysfs_br.c */ 1457348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1458348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 14591da177e4SLinus Torvalds 14601da177e4SLinus Torvalds #else 14611da177e4SLinus Torvalds 14620cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 14630cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 14640cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 14650cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 14661da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 14671da177e4SLinus Torvalds 14686bc506b4SIdo Schimmel /* br_switchdev.c */ 14696bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 14706bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 14716bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 14726bc506b4SIdo Schimmel struct sk_buff *skb); 14736bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 14746bc506b4SIdo Schimmel const struct sk_buff *skb); 14753922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 14763922285dSArkadi Sharshevsky unsigned long flags, 14773922285dSArkadi Sharshevsky unsigned long mask); 14786b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 14796b26b51bSArkadi Sharshevsky int type); 1480169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1481169327d5SPetr Machata struct netlink_ext_ack *extack); 1482d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1483f1c2eddfSIdo Schimmel 1484f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1485f1c2eddfSIdo Schimmel { 1486f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1487f1c2eddfSIdo Schimmel } 14886bc506b4SIdo Schimmel #else 14896bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 14906bc506b4SIdo Schimmel { 14916bc506b4SIdo Schimmel return 0; 14926bc506b4SIdo Schimmel } 14936bc506b4SIdo Schimmel 14946bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 14956bc506b4SIdo Schimmel struct sk_buff *skb) 14966bc506b4SIdo Schimmel { 14976bc506b4SIdo Schimmel } 14986bc506b4SIdo Schimmel 14996bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 15006bc506b4SIdo Schimmel const struct sk_buff *skb) 15016bc506b4SIdo Schimmel { 15026bc506b4SIdo Schimmel return true; 15036bc506b4SIdo Schimmel } 15043922285dSArkadi Sharshevsky 15053922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 15063922285dSArkadi Sharshevsky unsigned long flags, 15073922285dSArkadi Sharshevsky unsigned long mask) 15083922285dSArkadi Sharshevsky { 15093922285dSArkadi Sharshevsky return 0; 15103922285dSArkadi Sharshevsky } 15116b26b51bSArkadi Sharshevsky 1512d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1513169327d5SPetr Machata u16 vid, u16 flags, 1514169327d5SPetr Machata struct netlink_ext_ack *extack) 1515d66e4348SPetr Machata { 1516d66e4348SPetr Machata return -EOPNOTSUPP; 1517d66e4348SPetr Machata } 1518d66e4348SPetr Machata 1519d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1520d66e4348SPetr Machata { 1521d66e4348SPetr Machata return -EOPNOTSUPP; 1522d66e4348SPetr Machata } 1523d66e4348SPetr Machata 15246b26b51bSArkadi Sharshevsky static inline void 15256b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 15266b26b51bSArkadi Sharshevsky { 15276b26b51bSArkadi Sharshevsky } 1528f1c2eddfSIdo Schimmel 1529f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1530f1c2eddfSIdo Schimmel { 1531f1c2eddfSIdo Schimmel } 15326bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 15336bc506b4SIdo Schimmel 1534057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1535821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1536057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1537057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1538ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1539ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1540ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 15411da177e4SLinus Torvalds #endif 1542