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) 221b0812368SNikolay Aleksandrov #define BR_SGRP_F_INSTALLED BIT(2) 2228b671779SNikolay Aleksandrov 223e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc { 224e12cec65SNikolay Aleksandrov struct hlist_node gc_node; 225e12cec65SNikolay Aleksandrov void (*destroy)(struct net_bridge_mcast_gc *gc); 226e12cec65SNikolay Aleksandrov }; 227e12cec65SNikolay Aleksandrov 2288b671779SNikolay Aleksandrov struct net_bridge_group_src { 2298b671779SNikolay Aleksandrov struct hlist_node node; 2308b671779SNikolay Aleksandrov 2318b671779SNikolay Aleksandrov struct br_ip addr; 2328b671779SNikolay Aleksandrov struct net_bridge_port_group *pg; 2338b671779SNikolay Aleksandrov u8 flags; 234438ef2d0SNikolay Aleksandrov u8 src_query_rexmit_cnt; 2358b671779SNikolay Aleksandrov struct timer_list timer; 2368b671779SNikolay Aleksandrov 2378b671779SNikolay Aleksandrov struct net_bridge *br; 238e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2398b671779SNikolay Aleksandrov struct rcu_head rcu; 2408b671779SNikolay Aleksandrov }; 2418b671779SNikolay Aleksandrov 242085b53c8SNikolay Aleksandrov struct net_bridge_port_group_sg_key { 243eb1d1641SHerbert Xu struct net_bridge_port *port; 2448ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 245085b53c8SNikolay Aleksandrov }; 246085b53c8SNikolay Aleksandrov 247085b53c8SNikolay Aleksandrov struct net_bridge_port_group { 248085b53c8SNikolay Aleksandrov struct net_bridge_port_group __rcu *next; 249085b53c8SNikolay Aleksandrov struct net_bridge_port_group_sg_key key; 250206e7323SThomas Martitz unsigned char eth_addr[ETH_ALEN] __aligned(2); 2519d06b6d8SElad Raz unsigned char flags; 2528b671779SNikolay Aleksandrov unsigned char filter_mode; 25342c11ccfSNikolay Aleksandrov unsigned char grp_query_rexmit_cnt; 2548f8cb77eSNikolay Aleksandrov unsigned char rt_protocol; 2556ec0d0eeSNikolay Aleksandrov 2568b671779SNikolay Aleksandrov struct hlist_head src_list; 2578b671779SNikolay Aleksandrov unsigned int src_ents; 2586ec0d0eeSNikolay Aleksandrov struct timer_list timer; 25942c11ccfSNikolay Aleksandrov struct timer_list rexmit_timer; 2606ec0d0eeSNikolay Aleksandrov struct hlist_node mglist; 2616ec0d0eeSNikolay Aleksandrov 262085b53c8SNikolay Aleksandrov struct rhash_head rhnode; 263e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2646ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 265eb1d1641SHerbert Xu }; 266eb1d1641SHerbert Xu 2671c1cb6d0SNikolay Aleksandrov struct net_bridge_mdb_entry { 26819e3a9c9SNikolay Aleksandrov struct rhash_head rhnode; 269eb1d1641SHerbert Xu struct net_bridge *br; 270e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 2718ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 272ff0fd34eSAndrew Lunn bool host_joined; 2736ec0d0eeSNikolay Aleksandrov 2746ec0d0eeSNikolay Aleksandrov struct timer_list timer; 27519e3a9c9SNikolay Aleksandrov struct hlist_node mdb_node; 2766ec0d0eeSNikolay Aleksandrov 277e12cec65SNikolay Aleksandrov struct net_bridge_mcast_gc mcast_gc; 2786ec0d0eeSNikolay Aleksandrov struct rcu_head rcu; 279eb1d1641SHerbert Xu }; 280eb1d1641SHerbert Xu 2811f90c7f3SNikolay Aleksandrov struct net_bridge_port { 2821da177e4SLinus Torvalds struct net_bridge *br; 2831da177e4SLinus Torvalds struct net_device *dev; 2841da177e4SLinus Torvalds struct list_head list; 2851da177e4SLinus Torvalds 2861f90c7f3SNikolay Aleksandrov unsigned long flags; 2871f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 2881f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 2891f90c7f3SNikolay Aleksandrov #endif 2902756f68cSNikolay Aleksandrov struct net_bridge_port __rcu *backup_port; 2911f90c7f3SNikolay Aleksandrov 2921da177e4SLinus Torvalds /* STP */ 2931da177e4SLinus Torvalds u8 priority; 2941da177e4SLinus Torvalds u8 state; 2951da177e4SLinus Torvalds u16 port_no; 2961da177e4SLinus Torvalds unsigned char topology_change_ack; 2971da177e4SLinus Torvalds unsigned char config_pending; 2981da177e4SLinus Torvalds port_id port_id; 2991da177e4SLinus Torvalds port_id designated_port; 3001da177e4SLinus Torvalds bridge_id designated_root; 3011da177e4SLinus Torvalds bridge_id designated_bridge; 3021da177e4SLinus Torvalds u32 path_cost; 3031da177e4SLinus Torvalds u32 designated_cost; 3040c03150eSstephen hemminger unsigned long designated_age; 3051da177e4SLinus Torvalds 3061da177e4SLinus Torvalds struct timer_list forward_delay_timer; 3071da177e4SLinus Torvalds struct timer_list hold_timer; 3081da177e4SLinus Torvalds struct timer_list message_age_timer; 3091da177e4SLinus Torvalds struct kobject kobj; 3101da177e4SLinus Torvalds struct rcu_head rcu; 3113982d3d2SFischer, Anna 312eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 31390010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 314cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 31590010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 316cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 317eb1d1641SHerbert Xu unsigned char multicast_router; 3181080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 319eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 320eb1d1641SHerbert Xu struct hlist_head mglist; 321eb1d1641SHerbert Xu struct hlist_node rlist; 322eb1d1641SHerbert Xu #endif 323e0f43752SSimon Arlott 324e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 325e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 326e0f43752SSimon Arlott #endif 32791d2c34aSHerbert Xu 32891d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 32991d2c34aSHerbert Xu struct netpoll *np; 33091d2c34aSHerbert Xu #endif 3316bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 3326bc506b4SIdo Schimmel int offload_fwd_mark; 3336bc506b4SIdo Schimmel #endif 3345af48b59SNikolay Aleksandrov u16 group_fwd_mask; 3352756f68cSNikolay Aleksandrov u16 backup_redirected_cnt; 336de179966SVivien Didelot 337de179966SVivien Didelot struct bridge_stp_xstats stp_xstats; 3381da177e4SLinus Torvalds }; 3391da177e4SLinus Torvalds 340705e0deaSTyler Hicks #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) 341705e0deaSTyler Hicks 342e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 343f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 344e028e4b8SVlad Yasevich 345b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 346b5ed54e9Sstephen hemminger { 347716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 348b5ed54e9Sstephen hemminger } 349b5ed54e9Sstephen hemminger 3501fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 351b5ed54e9Sstephen hemminger { 35235f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 353ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 354b5ed54e9Sstephen hemminger } 355b5ed54e9Sstephen hemminger 3560baa10ffSArkadi Sharshevsky static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) 3570baa10ffSArkadi Sharshevsky { 35835f861e3SJulian Wiedmann return netif_is_bridge_port(dev) ? 3590baa10ffSArkadi Sharshevsky rcu_dereference_rtnl(dev->rx_handler_data) : NULL; 3600baa10ffSArkadi Sharshevsky } 3610baa10ffSArkadi Sharshevsky 362ae75767eSNikolay Aleksandrov enum net_bridge_opts { 363ae75767eSNikolay Aleksandrov BROPT_VLAN_ENABLED, 364ae75767eSNikolay Aleksandrov BROPT_VLAN_STATS_ENABLED, 3658df3510fSNikolay Aleksandrov BROPT_NF_CALL_IPTABLES, 3668df3510fSNikolay Aleksandrov BROPT_NF_CALL_IP6TABLES, 3678df3510fSNikolay Aleksandrov BROPT_NF_CALL_ARPTABLES, 368be3664a0SNikolay Aleksandrov BROPT_GROUP_ADDR_SET, 36913cefad2SNikolay Aleksandrov BROPT_MULTICAST_ENABLED, 370675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERIER, 371675779adSNikolay Aleksandrov BROPT_MULTICAST_QUERY_USE_IFADDR, 372675779adSNikolay Aleksandrov BROPT_MULTICAST_STATS_ENABLED, 373675779adSNikolay Aleksandrov BROPT_HAS_IPV6_ADDR, 374c69c2cd4SNikolay Aleksandrov BROPT_NEIGH_SUPPRESS_ENABLED, 3753341d917SNikolay Aleksandrov BROPT_MTU_SET_BY_USER, 3769163a0fcSNikolay Aleksandrov BROPT_VLAN_STATS_PER_PORT, 37770e4272bSNikolay Aleksandrov BROPT_NO_LL_LEARN, 3789c0ec2e7SMike Manning BROPT_VLAN_BRIDGE_BINDING, 379ae75767eSNikolay Aleksandrov }; 380ae75767eSNikolay Aleksandrov 3811f90c7f3SNikolay Aleksandrov struct net_bridge { 3821da177e4SLinus Torvalds spinlock_t lock; 3831f90c7f3SNikolay Aleksandrov spinlock_t hash_lock; 3841da177e4SLinus Torvalds struct list_head port_list; 3851da177e4SLinus Torvalds struct net_device *dev; 3868f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 387ae75767eSNikolay Aleksandrov unsigned long options; 3881f90c7f3SNikolay Aleksandrov /* These fields are accessed on each packet */ 3891f90c7f3SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 3901f90c7f3SNikolay Aleksandrov __be16 vlan_proto; 3911f90c7f3SNikolay Aleksandrov u16 default_pvid; 3921f90c7f3SNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 3931f90c7f3SNikolay Aleksandrov #endif 3941f90c7f3SNikolay Aleksandrov 395eb793583SNikolay Aleksandrov struct rhashtable fdb_hash_tbl; 39634666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 397efb6de9bSBernhard Thaler union { 3984adf0af6SSimon Wunderlich struct rtable fake_rtable; 399efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 400efb6de9bSBernhard Thaler }; 4014adf0af6SSimon Wunderlich #endif 402515853ccSstephen hemminger u16 group_fwd_mask; 403f2808d22SToshiaki Makita u16 group_fwd_mask_required; 404515853ccSstephen hemminger 4051da177e4SLinus Torvalds /* STP */ 4061da177e4SLinus Torvalds bridge_id designated_root; 4071da177e4SLinus Torvalds bridge_id bridge_id; 4081f90c7f3SNikolay Aleksandrov unsigned char topology_change; 4091f90c7f3SNikolay Aleksandrov unsigned char topology_change_detected; 4101f90c7f3SNikolay Aleksandrov u16 root_port; 4111da177e4SLinus Torvalds unsigned long max_age; 4121da177e4SLinus Torvalds unsigned long hello_time; 4131da177e4SLinus Torvalds unsigned long forward_delay; 4141da177e4SLinus Torvalds unsigned long ageing_time; 41534d8acd8SVivien Didelot unsigned long bridge_max_age; 4161da177e4SLinus Torvalds unsigned long bridge_hello_time; 4171da177e4SLinus Torvalds unsigned long bridge_forward_delay; 41834d8acd8SVivien Didelot unsigned long bridge_ageing_time; 41935750b0bSNikolay Aleksandrov u32 root_path_cost; 4201da177e4SLinus Torvalds 421fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 4229cde0708SStephen Hemminger 4239cde0708SStephen Hemminger enum { 4249cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 4259cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 4269cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 4279cde0708SStephen Hemminger } stp_enabled; 4289cde0708SStephen Hemminger 429eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 430eb1d1641SHerbert Xu 431eb1d1641SHerbert Xu u32 hash_max; 432eb1d1641SHerbert Xu 433eb1d1641SHerbert Xu u32 multicast_last_member_count; 434eb1d1641SHerbert Xu u32 multicast_startup_query_count; 435eb1d1641SHerbert Xu 4365e923585SNikolay Aleksandrov u8 multicast_igmp_version; 437675779adSNikolay Aleksandrov u8 multicast_router; 438675779adSNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 439675779adSNikolay Aleksandrov u8 multicast_mld_version; 440675779adSNikolay Aleksandrov #endif 44135750b0bSNikolay Aleksandrov spinlock_t multicast_lock; 442eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 443eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 444eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 445eb1d1641SHerbert Xu unsigned long multicast_query_interval; 446eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 447eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 448eb1d1641SHerbert Xu 44919e3a9c9SNikolay Aleksandrov struct rhashtable mdb_hash_tbl; 450085b53c8SNikolay Aleksandrov struct rhashtable sg_port_tbl; 45119e3a9c9SNikolay Aleksandrov 452e12cec65SNikolay Aleksandrov struct hlist_head mcast_gc_list; 45319e3a9c9SNikolay Aleksandrov struct hlist_head mdb_list; 454eb1d1641SHerbert Xu struct hlist_head router_list; 455eb1d1641SHerbert Xu 456eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 45790010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 45890010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 459dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 4601080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 461cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 46290010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 46390010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 464dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 465cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 466e12cec65SNikolay Aleksandrov struct work_struct mcast_gc_work; 467eb1d1641SHerbert Xu #endif 468eb1d1641SHerbert Xu 4691da177e4SLinus Torvalds struct timer_list hello_timer; 4701da177e4SLinus Torvalds struct timer_list tcn_timer; 4711da177e4SLinus Torvalds struct timer_list topology_change_timer; 472f7cdee8aSNikolay Aleksandrov struct delayed_work gc_work; 47343b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 474e028e4b8SVlad Yasevich u32 auto_cnt; 4756bc506b4SIdo Schimmel 4766bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 4776bc506b4SIdo Schimmel int offload_fwd_mark; 4786bc506b4SIdo Schimmel #endif 479eb793583SNikolay Aleksandrov struct hlist_head fdb_list; 4804b8d7d4cSHoratiu Vultur 4814b8d7d4cSHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 4829b14d1f8SHoratiu Vultur struct list_head mrp_list; 4834b8d7d4cSHoratiu Vultur #endif 4841da177e4SLinus Torvalds }; 4851da177e4SLinus Torvalds 48668b7c895SHerbert Xu struct br_input_skb_cb { 48768b7c895SHerbert Xu struct net_device *brdev; 48893fdd47eSHerbert Xu 4893c171f49SPablo Neira Ayuso u16 frag_max_size; 49032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 491f12064d1SFlorian Westphal u8 igmp; 492f12064d1SFlorian Westphal u8 mrouters_only:1; 49332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 494f12064d1SFlorian Westphal u8 proxyarp_replied:1; 495f12064d1SFlorian Westphal u8 src_port_isolated:1; 49620adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 497f12064d1SFlorian Westphal u8 vlan_filtered:1; 49820adfa1aSVlad Yasevich #endif 499223fd0adSFlorian Westphal #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE 500223fd0adSFlorian Westphal u8 br_netfilter_broute:1; 501223fd0adSFlorian Westphal #endif 5026bc506b4SIdo Schimmel 5036bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 5046bc506b4SIdo Schimmel int offload_fwd_mark; 5056bc506b4SIdo Schimmel #endif 50668b7c895SHerbert Xu }; 50768b7c895SHerbert Xu 50868b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 50968b7c895SHerbert Xu 51032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 51132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 51232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 51332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 51432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 51532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 51628a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 51728a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 51828a16c97Sstephen hemminger 51928a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 52028a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 52128a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 52228a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 52328a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 52428a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 52528a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 52628a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 52728a16c97Sstephen hemminger 52828a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 52928a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 53028a16c97Sstephen hemminger 5311da177e4SLinus Torvalds /* called under bridge lock */ 5321da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 5331da177e4SLinus Torvalds { 5341da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 5351da177e4SLinus Torvalds } 5361da177e4SLinus Torvalds 5372594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 5382594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 5392594e906SNikolay Aleksandrov { 5402594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 5412594e906SNikolay Aleksandrov } 5422594e906SNikolay Aleksandrov 5432594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 5442594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 5452594e906SNikolay Aleksandrov { 5462594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 5472594e906SNikolay Aleksandrov } 5482594e906SNikolay Aleksandrov 5496be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 5502594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 5512594e906SNikolay Aleksandrov { 5522594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 5532594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 5542594e906SNikolay Aleksandrov return true; 5552594e906SNikolay Aleksandrov else 5562594e906SNikolay Aleksandrov return false; 5572594e906SNikolay Aleksandrov } 5582594e906SNikolay Aleksandrov 5592594e906SNikolay Aleksandrov return true; 5602594e906SNikolay Aleksandrov } 5612594e906SNikolay Aleksandrov 5625d1fcaf3SNikolay Aleksandrov static inline bool nbp_state_should_learn(const struct net_bridge_port *p) 5635d1fcaf3SNikolay Aleksandrov { 5645d1fcaf3SNikolay Aleksandrov return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; 5655d1fcaf3SNikolay Aleksandrov } 5665d1fcaf3SNikolay Aleksandrov 5678f4cc940SNikolay Aleksandrov static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack) 5685a46facbSNikolay Aleksandrov { 5698f4cc940SNikolay Aleksandrov bool ret = vid > 0 && vid < VLAN_VID_MASK; 5708f4cc940SNikolay Aleksandrov 5718f4cc940SNikolay Aleksandrov if (!ret) 5728f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid"); 5738f4cc940SNikolay Aleksandrov 5748f4cc940SNikolay Aleksandrov return ret; 5755a46facbSNikolay Aleksandrov } 5765a46facbSNikolay Aleksandrov 5775a46facbSNikolay Aleksandrov static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, 5788f4cc940SNikolay Aleksandrov const struct bridge_vlan_info *last, 5798f4cc940SNikolay Aleksandrov struct netlink_ext_ack *extack) 5805a46facbSNikolay Aleksandrov { 5815a46facbSNikolay Aleksandrov /* pvid flag is not allowed in ranges */ 5828f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_PVID) { 5838f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range"); 5845a46facbSNikolay Aleksandrov return false; 5858f4cc940SNikolay Aleksandrov } 5865a46facbSNikolay Aleksandrov 5875a46facbSNikolay Aleksandrov /* when cur is the range end, check if: 5885a46facbSNikolay Aleksandrov * - it has range start flag 5895a46facbSNikolay Aleksandrov * - range ids are invalid (end is equal to or before start) 5905a46facbSNikolay Aleksandrov */ 5915a46facbSNikolay Aleksandrov if (last) { 5928f4cc940SNikolay Aleksandrov if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { 5938f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one"); 5945a46facbSNikolay Aleksandrov return false; 5958f4cc940SNikolay Aleksandrov } else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) { 5968f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing"); 5978f4cc940SNikolay Aleksandrov return false; 5988f4cc940SNikolay Aleksandrov } else if (cur->vid <= last->vid) { 5998f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); 6008f4cc940SNikolay Aleksandrov return false; 6018f4cc940SNikolay Aleksandrov } 6028f4cc940SNikolay Aleksandrov } 6038f4cc940SNikolay Aleksandrov 6048f4cc940SNikolay Aleksandrov /* check for required range flags */ 6058f4cc940SNikolay Aleksandrov if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | 6068f4cc940SNikolay Aleksandrov BRIDGE_VLAN_INFO_RANGE_END))) { 6078f4cc940SNikolay Aleksandrov NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing"); 6085a46facbSNikolay Aleksandrov return false; 6095a46facbSNikolay Aleksandrov } 6105a46facbSNikolay Aleksandrov 6115a46facbSNikolay Aleksandrov return true; 6125a46facbSNikolay Aleksandrov } 6135a46facbSNikolay Aleksandrov 614f545923bSNikolay Aleksandrov static inline int br_afspec_cmd_to_rtm(int cmd) 615f545923bSNikolay Aleksandrov { 616f545923bSNikolay Aleksandrov switch (cmd) { 617f545923bSNikolay Aleksandrov case RTM_SETLINK: 618f545923bSNikolay Aleksandrov return RTM_NEWVLAN; 619f545923bSNikolay Aleksandrov case RTM_DELLINK: 620f545923bSNikolay Aleksandrov return RTM_DELVLAN; 621f545923bSNikolay Aleksandrov } 622f545923bSNikolay Aleksandrov 623f545923bSNikolay Aleksandrov return 0; 624f545923bSNikolay Aleksandrov } 625f545923bSNikolay Aleksandrov 626ae75767eSNikolay Aleksandrov static inline int br_opt_get(const struct net_bridge *br, 627ae75767eSNikolay Aleksandrov enum net_bridge_opts opt) 628ae75767eSNikolay Aleksandrov { 629ae75767eSNikolay Aleksandrov return test_bit(opt, &br->options); 630ae75767eSNikolay Aleksandrov } 631ae75767eSNikolay Aleksandrov 632a428afe8SNikolay Aleksandrov int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, 633a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 634a428afe8SNikolay Aleksandrov int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); 635a428afe8SNikolay Aleksandrov int br_boolopt_multi_toggle(struct net_bridge *br, 636a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm, 637a428afe8SNikolay Aleksandrov struct netlink_ext_ack *extack); 638a428afe8SNikolay Aleksandrov void br_boolopt_multi_get(const struct net_bridge *br, 639a428afe8SNikolay Aleksandrov struct br_boolopt_multi *bm); 640ae75767eSNikolay Aleksandrov void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); 641ae75767eSNikolay Aleksandrov 6421da177e4SLinus Torvalds /* br_device.c */ 643348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 644348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 645348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 646cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 64791d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 64891d2c34aSHerbert Xu struct sk_buff *skb) 64991d2c34aSHerbert Xu { 650f78ed220SEric Dumazet netpoll_send_skb(p->np, skb); 65191d2c34aSHerbert Xu } 65291d2c34aSHerbert Xu 653a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 654348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 65591d2c34aSHerbert Xu #else 6569f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 65791d2c34aSHerbert Xu struct sk_buff *skb) 65891d2c34aSHerbert Xu { 65991d2c34aSHerbert Xu } 66091d2c34aSHerbert Xu 661a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 66291d2c34aSHerbert Xu { 66391d2c34aSHerbert Xu return 0; 66491d2c34aSHerbert Xu } 66591d2c34aSHerbert Xu 66691d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 66791d2c34aSHerbert Xu { 66891d2c34aSHerbert Xu } 669cfb478daSstephen hemminger #endif 6701da177e4SLinus Torvalds 6711da177e4SLinus Torvalds /* br_fdb.c */ 672348662a1SJoe Perches int br_fdb_init(void); 673348662a1SJoe Perches void br_fdb_fini(void); 674eb793583SNikolay Aleksandrov int br_fdb_hash_init(struct net_bridge *br); 675eb793583SNikolay Aleksandrov void br_fdb_hash_fini(struct net_bridge *br); 676348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 677424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 678424bb9c9SToshiaki Makita const struct net_bridge_port *p, 679424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 680348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 681348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 682f7cdee8aSNikolay Aleksandrov void br_fdb_cleanup(struct work_struct *work); 683348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 6841ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 685bfd0aeacSNikolay Aleksandrov struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, 686bfd0aeacSNikolay Aleksandrov const unsigned char *addr, 687bfd0aeacSNikolay Aleksandrov __u16 vid); 688348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 689348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 690348662a1SJoe Perches unsigned long off); 691348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 692348662a1SJoe Perches const unsigned char *addr, u16 vid); 693348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 694be0c5677SNikolay Aleksandrov const unsigned char *addr, u16 vid, unsigned long flags); 69577162022SJohn Fastabend 696348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 697f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 698348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 69987b0984eSPetr Machata const unsigned char *addr, u16 vid, u16 nlh_flags, 70087b0984eSPetr Machata struct netlink_ext_ack *extack); 701348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 702d297653dSRoopa Prabhu struct net_device *dev, struct net_device *fdev, int *idx); 70347674562SRoopa Prabhu int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, 70447674562SRoopa Prabhu const unsigned char *addr, u16 vid, u32 portid, u32 seq, 70547674562SRoopa Prabhu struct netlink_ext_ack *extack); 7068db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 7078db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 7083aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 709161d82deSPetr Machata const unsigned char *addr, u16 vid, 710161d82deSPetr Machata bool swdev_notify); 7113aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 712161d82deSPetr Machata const unsigned char *addr, u16 vid, 713161d82deSPetr Machata bool swdev_notify); 7149fe8bcecSArkadi Sharshevsky void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, 715e9ba0fbcSIdo Schimmel const unsigned char *addr, u16 vid, bool offloaded); 7161da177e4SLinus Torvalds 7171da177e4SLinus Torvalds /* br_forward.c */ 7188addd5e7SNikolay Aleksandrov enum br_pkt_type { 7198addd5e7SNikolay Aleksandrov BR_PKT_UNICAST, 7208addd5e7SNikolay Aleksandrov BR_PKT_MULTICAST, 7218addd5e7SNikolay Aleksandrov BR_PKT_BROADCAST 7228addd5e7SNikolay Aleksandrov }; 7230c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 724b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 72537b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 7260c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 72737b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 7288addd5e7SNikolay Aleksandrov enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); 7291da177e4SLinus Torvalds 7307d850abdSNikolay Aleksandrov /* return true if both source port and dest port are isolated */ 7317d850abdSNikolay Aleksandrov static inline bool br_skb_isolated(const struct net_bridge_port *to, 7327d850abdSNikolay Aleksandrov const struct sk_buff *skb) 7337d850abdSNikolay Aleksandrov { 7347d850abdSNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->src_port_isolated && 7357d850abdSNikolay Aleksandrov (to->flags & BR_ISOLATED); 7367d850abdSNikolay Aleksandrov } 7377d850abdSNikolay Aleksandrov 7381da177e4SLinus Torvalds /* br_if.c */ 739faa1cd82SNikolay Aleksandrov void br_port_carrier_check(struct net_bridge_port *p, bool *notified); 740348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 741348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 742ca752be0SDavid Ahern int br_add_if(struct net_bridge *br, struct net_device *dev, 743ca752be0SDavid Ahern struct netlink_ext_ack *extack); 744348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 745804b854dSNikolay Aleksandrov void br_mtu_auto_adjust(struct net_bridge *br); 746348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 747c8f44affSMichał Mirosław netdev_features_t features); 748e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 7492796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 7502756f68cSNikolay Aleksandrov int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); 7511da177e4SLinus Torvalds 7521da177e4SLinus Torvalds /* br_input.c */ 7530c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 7549eb8eff0SVladimir Oltean rx_handler_func_t *br_get_rx_handler(const struct net_device *dev); 7551da177e4SLinus Torvalds 756859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 757859828c0SJiri Pirko { 7589eb8eff0SVladimir Oltean return rcu_dereference(dev->rx_handler) == br_get_rx_handler(dev); 759859828c0SJiri Pirko } 760859828c0SJiri Pirko 7614d4fd361SPetr Machata static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) 7624d4fd361SPetr Machata { 7639eb8eff0SVladimir Oltean return rcu_dereference_rtnl(dev->rx_handler) == br_get_rx_handler(dev); 7644d4fd361SPetr Machata } 7654d4fd361SPetr Machata 766859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 767859828c0SJiri Pirko { 768859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 769859828c0SJiri Pirko } 770859828c0SJiri Pirko 7714d4fd361SPetr Machata static inline struct net_bridge_port * 7724d4fd361SPetr Machata br_port_get_check_rtnl(const struct net_device *dev) 7734d4fd361SPetr Machata { 7744d4fd361SPetr Machata return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; 7754d4fd361SPetr Machata } 7764d4fd361SPetr Machata 7771da177e4SLinus Torvalds /* br_ioctl.c */ 778348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 779348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 780348662a1SJoe Perches void __user *arg); 7811da177e4SLinus Torvalds 782eb1d1641SHerbert Xu /* br_multicast.c */ 783eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 784348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 785fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 786348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 787eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 7881080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 789348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 790348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 791348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 792348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 793348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 794348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 795e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 79637b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 79737b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 798348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 799348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 800348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 801348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 802348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 8035e923585SNikolay Aleksandrov int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); 804aa2ae3e7SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 805aa2ae3e7SNikolay Aleksandrov int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); 806aa2ae3e7SNikolay Aleksandrov #endif 807348662a1SJoe Perches struct net_bridge_mdb_entry * 80819e3a9c9SNikolay Aleksandrov br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); 809348662a1SJoe Perches struct net_bridge_mdb_entry * 81019e3a9c9SNikolay Aleksandrov br_multicast_new_group(struct net_bridge *br, struct br_ip *group); 811348662a1SJoe Perches struct net_bridge_port_group * 812348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 813762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 8148b671779SNikolay Aleksandrov unsigned char flags, const unsigned char *src, 8158f8cb77eSNikolay Aleksandrov u8 filter_mode, u8 rt_protocol); 81619e3a9c9SNikolay Aleksandrov int br_mdb_hash_init(struct net_bridge *br); 81719e3a9c9SNikolay Aleksandrov void br_mdb_hash_fini(struct net_bridge *br); 81881f19838SNikolay Aleksandrov void br_mdb_notify(struct net_device *dev, struct net_bridge_mdb_entry *mp, 81981f19838SNikolay Aleksandrov struct net_bridge_port_group *pg, int type); 820949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 821949f1e39SSatish Ashok int type); 822681590bdSNikolay Aleksandrov void br_multicast_del_pg(struct net_bridge_mdb_entry *mp, 823681590bdSNikolay Aleksandrov struct net_bridge_port_group *pg, 824681590bdSNikolay Aleksandrov struct net_bridge_port_group __rcu **pp); 8251080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 826a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 8271080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 828b6fe0440SIdo Schimmel void br_multicast_uninit_stats(struct net_bridge *br); 8291080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 8301080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 8311080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 83219e3a9c9SNikolay Aleksandrov void br_mdb_init(void); 83319e3a9c9SNikolay Aleksandrov void br_mdb_uninit(void); 8341bc844eeSNikolay Aleksandrov void br_multicast_host_join(struct net_bridge_mdb_entry *mp, bool notify); 8351bc844eeSNikolay Aleksandrov void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); 83685b35269SSridhar Samudrala 837cfd56754SCong Wang #define mlock_dereference(X, br) \ 838cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 839cfd56754SCong Wang 84085b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 84185b35269SSridhar Samudrala { 84285b35269SSridhar Samudrala return br->multicast_router == 2 || 84385b35269SSridhar Samudrala (br->multicast_router == 1 && 84485b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 84585b35269SSridhar Samudrala } 846b00589afSLinus Lüssing 847cc0fdd80SLinus Lüssing static inline bool 848cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 8490888d5f3Sdaniel struct bridge_mcast_other_query *querier, 8500888d5f3Sdaniel const bool is_ipv6) 851b00589afSLinus Lüssing { 8520888d5f3Sdaniel bool own_querier_enabled; 8530888d5f3Sdaniel 854675779adSNikolay Aleksandrov if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { 855675779adSNikolay Aleksandrov if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) 8560888d5f3Sdaniel own_querier_enabled = false; 8570888d5f3Sdaniel else 8580888d5f3Sdaniel own_querier_enabled = true; 8590888d5f3Sdaniel } else { 8600888d5f3Sdaniel own_querier_enabled = false; 8610888d5f3Sdaniel } 8620888d5f3Sdaniel 863cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 8640888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 865cc0fdd80SLinus Lüssing } 866cc0fdd80SLinus Lüssing 867cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 868cc0fdd80SLinus Lüssing struct ethhdr *eth) 869cc0fdd80SLinus Lüssing { 870cc0fdd80SLinus Lüssing switch (eth->h_proto) { 871cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 8720888d5f3Sdaniel return __br_multicast_querier_exists(br, 8730888d5f3Sdaniel &br->ip4_other_query, false); 874cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 875cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 8760888d5f3Sdaniel return __br_multicast_querier_exists(br, 8770888d5f3Sdaniel &br->ip6_other_query, true); 878cc0fdd80SLinus Lüssing #endif 879cc0fdd80SLinus Lüssing default: 880cc0fdd80SLinus Lüssing return false; 881cc0fdd80SLinus Lüssing } 882b00589afSLinus Lüssing } 8831080ab95SNikolay Aleksandrov 88488d4bd18SNikolay Aleksandrov static inline bool br_multicast_is_star_g(const struct br_ip *ip) 88588d4bd18SNikolay Aleksandrov { 88688d4bd18SNikolay Aleksandrov switch (ip->proto) { 88788d4bd18SNikolay Aleksandrov case htons(ETH_P_IP): 88888d4bd18SNikolay Aleksandrov return ipv4_is_zeronet(ip->src.ip4); 88988d4bd18SNikolay Aleksandrov #if IS_ENABLED(CONFIG_IPV6) 89088d4bd18SNikolay Aleksandrov case htons(ETH_P_IPV6): 89188d4bd18SNikolay Aleksandrov return ipv6_addr_any(&ip->src.ip6); 89288d4bd18SNikolay Aleksandrov #endif 89388d4bd18SNikolay Aleksandrov default: 89488d4bd18SNikolay Aleksandrov return false; 89588d4bd18SNikolay Aleksandrov } 89688d4bd18SNikolay Aleksandrov } 89788d4bd18SNikolay Aleksandrov 8981080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 8991080ab95SNikolay Aleksandrov { 9001080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 9011080ab95SNikolay Aleksandrov } 90242c11ccfSNikolay Aleksandrov 90342c11ccfSNikolay Aleksandrov static inline unsigned long br_multicast_lmqt(const struct net_bridge *br) 90442c11ccfSNikolay Aleksandrov { 90542c11ccfSNikolay Aleksandrov return br->multicast_last_member_interval * 90642c11ccfSNikolay Aleksandrov br->multicast_last_member_count; 90742c11ccfSNikolay Aleksandrov } 9080436862eSNikolay Aleksandrov 9090436862eSNikolay Aleksandrov static inline unsigned long br_multicast_gmi(const struct net_bridge *br) 9100436862eSNikolay Aleksandrov { 9110436862eSNikolay Aleksandrov /* use the RFC default of 2 for QRV */ 9120436862eSNikolay Aleksandrov return 2 * br->multicast_query_interval + 9130436862eSNikolay Aleksandrov br->multicast_query_response_interval; 9140436862eSNikolay Aleksandrov } 915eb1d1641SHerbert Xu #else 916eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 917eb1d1641SHerbert Xu struct net_bridge_port *port, 91806499098SVlad Yasevich struct sk_buff *skb, 91906499098SVlad Yasevich u16 vid) 920eb1d1641SHerbert Xu { 921eb1d1641SHerbert Xu return 0; 922eb1d1641SHerbert Xu } 923eb1d1641SHerbert Xu 924eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 925fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 926eb1d1641SHerbert Xu { 927eb1d1641SHerbert Xu return NULL; 928eb1d1641SHerbert Xu } 929eb1d1641SHerbert Xu 9301080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 931eb1d1641SHerbert Xu { 9321080ab95SNikolay Aleksandrov return 0; 933eb1d1641SHerbert Xu } 934eb1d1641SHerbert Xu 935eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 936eb1d1641SHerbert Xu { 937eb1d1641SHerbert Xu } 938eb1d1641SHerbert Xu 939eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 940eb1d1641SHerbert Xu { 941eb1d1641SHerbert Xu } 942eb1d1641SHerbert Xu 943eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 944eb1d1641SHerbert Xu { 945eb1d1641SHerbert Xu } 946eb1d1641SHerbert Xu 947eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 948eb1d1641SHerbert Xu { 949eb1d1641SHerbert Xu } 950eb1d1641SHerbert Xu 951eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 952eb1d1641SHerbert Xu { 953eb1d1641SHerbert Xu } 954eb1d1641SHerbert Xu 955eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 956eb1d1641SHerbert Xu { 957eb1d1641SHerbert Xu } 9585cb5e947SHerbert Xu 959a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 960a7ce45a7SNikolay Aleksandrov { 961a7ce45a7SNikolay Aleksandrov } 962a7ce45a7SNikolay Aleksandrov 96337b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 96437b090e6SNikolay Aleksandrov struct sk_buff *skb, 96537b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 9665cb5e947SHerbert Xu { 9675cb5e947SHerbert Xu } 9685cb5e947SHerbert Xu 969eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 970eb1d1641SHerbert Xu { 97103aaa9e2SGustavo A. R. Silva return false; 972eb1d1641SHerbert Xu } 97337b090e6SNikolay Aleksandrov 974cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 975cc0fdd80SLinus Lüssing struct ethhdr *eth) 976b00589afSLinus Lüssing { 977b00589afSLinus Lüssing return false; 978b00589afSLinus Lüssing } 97937b090e6SNikolay Aleksandrov 980fdb184d1SRami Rosen static inline void br_mdb_init(void) 981fdb184d1SRami Rosen { 982fdb184d1SRami Rosen } 98337b090e6SNikolay Aleksandrov 984fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 985fdb184d1SRami Rosen { 986fdb184d1SRami Rosen } 9871080ab95SNikolay Aleksandrov 98819e3a9c9SNikolay Aleksandrov static inline int br_mdb_hash_init(struct net_bridge *br) 98919e3a9c9SNikolay Aleksandrov { 99019e3a9c9SNikolay Aleksandrov return 0; 99119e3a9c9SNikolay Aleksandrov } 99219e3a9c9SNikolay Aleksandrov 99319e3a9c9SNikolay Aleksandrov static inline void br_mdb_hash_fini(struct net_bridge *br) 99419e3a9c9SNikolay Aleksandrov { 99519e3a9c9SNikolay Aleksandrov } 99619e3a9c9SNikolay Aleksandrov 9971080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 9981080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 999a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 1000a65056ecSNikolay Aleksandrov u8 type, u8 dir) 10011080ab95SNikolay Aleksandrov { 10021080ab95SNikolay Aleksandrov } 10031080ab95SNikolay Aleksandrov 10041080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 10051080ab95SNikolay Aleksandrov { 10061080ab95SNikolay Aleksandrov return 0; 10071080ab95SNikolay Aleksandrov } 10081080ab95SNikolay Aleksandrov 1009b6fe0440SIdo Schimmel static inline void br_multicast_uninit_stats(struct net_bridge *br) 1010b6fe0440SIdo Schimmel { 1011b6fe0440SIdo Schimmel } 1012b6fe0440SIdo Schimmel 10131080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 10141080ab95SNikolay Aleksandrov { 10151080ab95SNikolay Aleksandrov return 0; 10161080ab95SNikolay Aleksandrov } 101785b35269SSridhar Samudrala #endif 1018eb1d1641SHerbert Xu 1019243a2e63SVlad Yasevich /* br_vlan.c */ 1020243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 102177751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 102277751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 1023a580c76dSNikolay Aleksandrov u16 *vid, u8 *state); 102477751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 102585f46c6bSVlad Yasevich const struct sk_buff *skb); 1026e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 1027348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 102811538d03SRoopa Prabhu const struct net_bridge_port *port, 10292594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 103078851988SVlad Yasevich struct sk_buff *skb); 1031f418af63SNikolay Aleksandrov int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1032169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1033348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 1034348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 10352594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 1036204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 1037a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 1038348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 1039d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 1040204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 10416dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 10429163a0fcSNikolay Aleksandrov int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); 10435be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 104496a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 1045169327d5SPetr Machata int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, 1046169327d5SPetr Machata struct netlink_ext_ack *extack); 1047f418af63SNikolay Aleksandrov int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1048169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack); 1049348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 1050348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 1051169327d5SPetr Machata int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); 10522594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 1053a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 1054a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 10559c0ec2e7SMike Manning void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); 1056091adf9bSNikolay Aleksandrov int br_vlan_bridge_event(struct net_device *dev, unsigned long event, 10579c0ec2e7SMike Manning void *ptr); 10588dcea187SNikolay Aleksandrov void br_vlan_rtnl_init(void); 10598dcea187SNikolay Aleksandrov void br_vlan_rtnl_uninit(void); 1060cf5bddb9SNikolay Aleksandrov void br_vlan_notify(const struct net_bridge *br, 1061cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1062cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1063cf5bddb9SNikolay Aleksandrov int cmd); 1064a5d29ae2SNikolay Aleksandrov bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1065a5d29ae2SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 1066a37b85c9SVlad Yasevich 10672594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 1068a37b85c9SVlad Yasevich const struct net_bridge *br) 1069a37b85c9SVlad Yasevich { 1070907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 1071a37b85c9SVlad Yasevich } 1072a37b85c9SVlad Yasevich 10732594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 1074a37b85c9SVlad Yasevich const struct net_bridge_port *p) 1075a37b85c9SVlad Yasevich { 1076907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 1077907b1e6eSNikolay Aleksandrov } 1078907b1e6eSNikolay Aleksandrov 1079907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1080907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1081907b1e6eSNikolay Aleksandrov { 1082907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 1083907b1e6eSNikolay Aleksandrov } 1084907b1e6eSNikolay Aleksandrov 1085907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1086907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1087907b1e6eSNikolay Aleksandrov { 1088907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 1089a37b85c9SVlad Yasevich } 1090a37b85c9SVlad Yasevich 1091a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 1092a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 1093a37b85c9SVlad Yasevich */ 1094a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 1095a37b85c9SVlad Yasevich { 1096a37b85c9SVlad Yasevich int err = 0; 1097a37b85c9SVlad Yasevich 10982594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 10995978f8a9SMichał Mirosław *vid = skb_vlan_tag_get_id(skb); 11002594e906SNikolay Aleksandrov } else { 1101a37b85c9SVlad Yasevich *vid = 0; 1102a37b85c9SVlad Yasevich err = -EINVAL; 1103a37b85c9SVlad Yasevich } 1104a37b85c9SVlad Yasevich 1105a37b85c9SVlad Yasevich return err; 1106a37b85c9SVlad Yasevich } 110778851988SVlad Yasevich 110877751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 110978851988SVlad Yasevich { 111077751ee8SNikolay Aleksandrov if (!vg) 11115be5a2dfSVlad Yasevich return 0; 11125be5a2dfSVlad Yasevich 111378851988SVlad Yasevich smp_rmb(); 111477751ee8SNikolay Aleksandrov return vg->pvid; 111578851988SVlad Yasevich } 111678851988SVlad Yasevich 11178dcea187SNikolay Aleksandrov static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) 11188dcea187SNikolay Aleksandrov { 11198dcea187SNikolay Aleksandrov return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags; 11208dcea187SNikolay Aleksandrov } 1121243a2e63SVlad Yasevich #else 112277751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 112377751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 11242594e906SNikolay Aleksandrov struct sk_buff *skb, 1125a580c76dSNikolay Aleksandrov u16 *vid, u8 *state) 11262594e906SNikolay Aleksandrov { 11272594e906SNikolay Aleksandrov return true; 11282594e906SNikolay Aleksandrov } 11292594e906SNikolay Aleksandrov 11302594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 113185f46c6bSVlad Yasevich const struct sk_buff *skb) 113285f46c6bSVlad Yasevich { 113385f46c6bSVlad Yasevich return true; 113485f46c6bSVlad Yasevich } 113585f46c6bSVlad Yasevich 1136e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 1137e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 1138e0d7968aSToshiaki Makita { 1139e0d7968aSToshiaki Makita return true; 1140e0d7968aSToshiaki Makita } 1141e0d7968aSToshiaki Makita 114278851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 114311538d03SRoopa Prabhu const struct net_bridge_port *port, 11442594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 114578851988SVlad Yasevich struct sk_buff *skb) 114678851988SVlad Yasevich { 114778851988SVlad Yasevich return skb; 114878851988SVlad Yasevich } 114978851988SVlad Yasevich 1150f418af63SNikolay Aleksandrov static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, 1151169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1152243a2e63SVlad Yasevich { 1153f418af63SNikolay Aleksandrov *changed = false; 1154243a2e63SVlad Yasevich return -EOPNOTSUPP; 1155243a2e63SVlad Yasevich } 1156243a2e63SVlad Yasevich 1157243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 1158243a2e63SVlad Yasevich { 1159243a2e63SVlad Yasevich return -EOPNOTSUPP; 1160243a2e63SVlad Yasevich } 1161243a2e63SVlad Yasevich 1162243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 1163243a2e63SVlad Yasevich { 1164243a2e63SVlad Yasevich } 1165243a2e63SVlad Yasevich 1166204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 1167204177f3SToshiaki Makita { 1168204177f3SToshiaki Makita } 1169204177f3SToshiaki Makita 11705be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 11718580e211SToshiaki Makita { 11725be5a2dfSVlad Yasevich return 0; 11738580e211SToshiaki Makita } 11748580e211SToshiaki Makita 1175f418af63SNikolay Aleksandrov static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, 1176169327d5SPetr Machata bool *changed, struct netlink_ext_ack *extack) 1177243a2e63SVlad Yasevich { 1178f418af63SNikolay Aleksandrov *changed = false; 1179243a2e63SVlad Yasevich return -EOPNOTSUPP; 1180243a2e63SVlad Yasevich } 1181243a2e63SVlad Yasevich 1182243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 1183243a2e63SVlad Yasevich { 1184243a2e63SVlad Yasevich return -EOPNOTSUPP; 1185243a2e63SVlad Yasevich } 1186243a2e63SVlad Yasevich 1187243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 1188243a2e63SVlad Yasevich { 1189243a2e63SVlad Yasevich } 1190243a2e63SVlad Yasevich 11912594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 11922594e906SNikolay Aleksandrov u16 vid) 1193a37b85c9SVlad Yasevich { 1194a37b85c9SVlad Yasevich return NULL; 1195a37b85c9SVlad Yasevich } 1196bc9a25d2SVlad Yasevich 1197169327d5SPetr Machata static inline int nbp_vlan_init(struct net_bridge_port *port, 1198169327d5SPetr Machata struct netlink_ext_ack *extack) 11995be5a2dfSVlad Yasevich { 12005be5a2dfSVlad Yasevich return 0; 12015be5a2dfSVlad Yasevich } 12025be5a2dfSVlad Yasevich 120378851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 1204a37b85c9SVlad Yasevich { 1205a37b85c9SVlad Yasevich return 0; 1206a37b85c9SVlad Yasevich } 12072594e906SNikolay Aleksandrov 120877751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 120978851988SVlad Yasevich { 12103df6bf45SVlad Yasevich return 0; 121178851988SVlad Yasevich } 12122796d0c6SVlad Yasevich 1213a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 1214a7854037SNikolay Aleksandrov unsigned long val) 1215a7854037SNikolay Aleksandrov { 1216a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 1217a7854037SNikolay Aleksandrov } 12182594e906SNikolay Aleksandrov 12192594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 12202594e906SNikolay Aleksandrov u32 filter_mask) 12212594e906SNikolay Aleksandrov { 12222594e906SNikolay Aleksandrov return 0; 12232594e906SNikolay Aleksandrov } 12242594e906SNikolay Aleksandrov 12252594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 12262594e906SNikolay Aleksandrov const struct net_bridge *br) 12272594e906SNikolay Aleksandrov { 12282594e906SNikolay Aleksandrov return NULL; 12292594e906SNikolay Aleksandrov } 12302594e906SNikolay Aleksandrov 12312594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 12322594e906SNikolay Aleksandrov const struct net_bridge_port *p) 12332594e906SNikolay Aleksandrov { 12342594e906SNikolay Aleksandrov return NULL; 12352594e906SNikolay Aleksandrov } 1236907b1e6eSNikolay Aleksandrov 1237907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 1238907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 1239907b1e6eSNikolay Aleksandrov { 1240907b1e6eSNikolay Aleksandrov return NULL; 1241907b1e6eSNikolay Aleksandrov } 1242907b1e6eSNikolay Aleksandrov 1243907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 1244907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 1245907b1e6eSNikolay Aleksandrov { 1246907b1e6eSNikolay Aleksandrov return NULL; 1247907b1e6eSNikolay Aleksandrov } 1248a60c0903SNikolay Aleksandrov 1249a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 1250a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 1251a60c0903SNikolay Aleksandrov { 1252a60c0903SNikolay Aleksandrov } 12539c0ec2e7SMike Manning 12549c0ec2e7SMike Manning static inline void br_vlan_port_event(struct net_bridge_port *p, 12559c0ec2e7SMike Manning unsigned long event) 12569c0ec2e7SMike Manning { 12579c0ec2e7SMike Manning } 12589c0ec2e7SMike Manning 1259091adf9bSNikolay Aleksandrov static inline int br_vlan_bridge_event(struct net_device *dev, 12609c0ec2e7SMike Manning unsigned long event, void *ptr) 12619c0ec2e7SMike Manning { 1262091adf9bSNikolay Aleksandrov return 0; 12639c0ec2e7SMike Manning } 12648dcea187SNikolay Aleksandrov 12658dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_init(void) 12668dcea187SNikolay Aleksandrov { 12678dcea187SNikolay Aleksandrov } 12688dcea187SNikolay Aleksandrov 12698dcea187SNikolay Aleksandrov static inline void br_vlan_rtnl_uninit(void) 12708dcea187SNikolay Aleksandrov { 12718dcea187SNikolay Aleksandrov } 1272cf5bddb9SNikolay Aleksandrov 1273cf5bddb9SNikolay Aleksandrov static inline void br_vlan_notify(const struct net_bridge *br, 1274cf5bddb9SNikolay Aleksandrov const struct net_bridge_port *p, 1275cf5bddb9SNikolay Aleksandrov u16 vid, u16 vid_range, 1276cf5bddb9SNikolay Aleksandrov int cmd) 1277cf5bddb9SNikolay Aleksandrov { 1278cf5bddb9SNikolay Aleksandrov } 1279528ae84aSNikolay Aleksandrov 1280528ae84aSNikolay Aleksandrov static inline bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, 1281528ae84aSNikolay Aleksandrov const struct net_bridge_vlan *range_end) 1282528ae84aSNikolay Aleksandrov { 1283528ae84aSNikolay Aleksandrov return true; 1284528ae84aSNikolay Aleksandrov } 1285243a2e63SVlad Yasevich #endif 1286243a2e63SVlad Yasevich 12877a53e718SNikolay Aleksandrov /* br_vlan_options.c */ 12887a53e718SNikolay Aleksandrov #ifdef CONFIG_BRIDGE_VLAN_FILTERING 128999f7c5e0SNikolay Aleksandrov bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, 129099f7c5e0SNikolay Aleksandrov const struct net_bridge_vlan *range_end); 12917a53e718SNikolay Aleksandrov bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v); 12927a53e718SNikolay Aleksandrov size_t br_vlan_opts_nl_size(void); 1293a5d29ae2SNikolay Aleksandrov int br_vlan_process_options(const struct net_bridge *br, 1294a5d29ae2SNikolay Aleksandrov const struct net_bridge_port *p, 1295a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_start, 1296a5d29ae2SNikolay Aleksandrov struct net_bridge_vlan *range_end, 1297a5d29ae2SNikolay Aleksandrov struct nlattr **tb, 1298a5d29ae2SNikolay Aleksandrov struct netlink_ext_ack *extack); 1299a580c76dSNikolay Aleksandrov 1300a580c76dSNikolay Aleksandrov /* vlan state manipulation helpers using *_ONCE to annotate lock-free access */ 1301a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v) 1302a580c76dSNikolay Aleksandrov { 1303a580c76dSNikolay Aleksandrov return READ_ONCE(v->state); 1304a580c76dSNikolay Aleksandrov } 1305a580c76dSNikolay Aleksandrov 1306a580c76dSNikolay Aleksandrov static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state) 1307a580c76dSNikolay Aleksandrov { 1308a580c76dSNikolay Aleksandrov WRITE_ONCE(v->state, state); 1309a580c76dSNikolay Aleksandrov } 1310a580c76dSNikolay Aleksandrov 1311a580c76dSNikolay Aleksandrov static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg) 1312a580c76dSNikolay Aleksandrov { 1313a580c76dSNikolay Aleksandrov return READ_ONCE(vg->pvid_state); 1314a580c76dSNikolay Aleksandrov } 1315a580c76dSNikolay Aleksandrov 1316a580c76dSNikolay Aleksandrov static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg, 1317a580c76dSNikolay Aleksandrov u8 state) 1318a580c76dSNikolay Aleksandrov { 1319a580c76dSNikolay Aleksandrov WRITE_ONCE(vg->pvid_state, state); 1320a580c76dSNikolay Aleksandrov } 1321a580c76dSNikolay Aleksandrov 1322a580c76dSNikolay Aleksandrov /* learn_allow is true at ingress and false at egress */ 1323a580c76dSNikolay Aleksandrov static inline bool br_vlan_state_allowed(u8 state, bool learn_allow) 1324a580c76dSNikolay Aleksandrov { 1325a580c76dSNikolay Aleksandrov switch (state) { 1326a580c76dSNikolay Aleksandrov case BR_STATE_LEARNING: 1327a580c76dSNikolay Aleksandrov return learn_allow; 1328a580c76dSNikolay Aleksandrov case BR_STATE_FORWARDING: 1329a580c76dSNikolay Aleksandrov return true; 1330a580c76dSNikolay Aleksandrov default: 1331a580c76dSNikolay Aleksandrov return false; 1332a580c76dSNikolay Aleksandrov } 1333a580c76dSNikolay Aleksandrov } 13347a53e718SNikolay Aleksandrov #endif 13357a53e718SNikolay Aleksandrov 13361a4ba64dSPablo Neira Ayuso struct nf_br_ops { 13371a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 13381a4ba64dSPablo Neira Ayuso }; 13391a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 13401a4ba64dSPablo Neira Ayuso 13411da177e4SLinus Torvalds /* br_netfilter.c */ 134234666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 134334666d46SPablo Neira Ayuso int br_nf_core_init(void); 134434666d46SPablo Neira Ayuso void br_nf_core_fini(void); 1345348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 1346c0909713SStephen Hemminger #else 134734666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 134834666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 13494adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 1350c0909713SStephen Hemminger #endif 13511da177e4SLinus Torvalds 13521da177e4SLinus Torvalds /* br_stp.c */ 1353775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 1354348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 1355348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 1356348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 13571da177e4SLinus Torvalds 1358348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 1359348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 1360348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 1361348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 136282dd4332SVivien Didelot int __set_ageing_time(struct net_device *dev, unsigned long t); 13639e0b27feSVivien Didelot int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); 136414f98f25Sstephen hemminger 136514f98f25Sstephen hemminger 13661da177e4SLinus Torvalds /* br_stp_if.c */ 1367348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 1368348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 1369419dba8aSHoratiu Vultur int br_stp_set_enabled(struct net_bridge *br, unsigned long val, 1370419dba8aSHoratiu Vultur struct netlink_ext_ack *extack); 1371348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 1372348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 1373348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 1374348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 1375348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 1376348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 1377348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 1378348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 13791da177e4SLinus Torvalds 13801da177e4SLinus Torvalds /* br_stp_bpdu.c */ 13817c85fbf0SPatrick McHardy struct stp_proto; 1382348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 13837c85fbf0SPatrick McHardy struct net_device *dev); 13841da177e4SLinus Torvalds 13851da177e4SLinus Torvalds /* br_stp_timer.c */ 1386348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1387348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1388348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 13891da177e4SLinus Torvalds 13901da177e4SLinus Torvalds /* br.c */ 1391e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1392da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1393da678292SMichał Mirosław #endif 13941da177e4SLinus Torvalds 139565369933SHoratiu Vultur /* br_mrp.c */ 139665369933SHoratiu Vultur #if IS_ENABLED(CONFIG_BRIDGE_MRP) 139765369933SHoratiu Vultur int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 139865369933SHoratiu Vultur struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); 139965369933SHoratiu Vultur int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb); 140065369933SHoratiu Vultur bool br_mrp_enabled(struct net_bridge *br); 140165369933SHoratiu Vultur void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p); 1402df42ef22SHoratiu Vultur int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br); 140365369933SHoratiu Vultur #else 140465369933SHoratiu Vultur static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, 140565369933SHoratiu Vultur struct nlattr *attr, int cmd, 140665369933SHoratiu Vultur struct netlink_ext_ack *extack) 140765369933SHoratiu Vultur { 140865369933SHoratiu Vultur return -EOPNOTSUPP; 140965369933SHoratiu Vultur } 141065369933SHoratiu Vultur 141165369933SHoratiu Vultur static inline int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb) 141265369933SHoratiu Vultur { 141365369933SHoratiu Vultur return 0; 141465369933SHoratiu Vultur } 141565369933SHoratiu Vultur 141665369933SHoratiu Vultur static inline bool br_mrp_enabled(struct net_bridge *br) 141765369933SHoratiu Vultur { 14188741e184SJason Yan return false; 141965369933SHoratiu Vultur } 142065369933SHoratiu Vultur 142165369933SHoratiu Vultur static inline void br_mrp_port_del(struct net_bridge *br, 142265369933SHoratiu Vultur struct net_bridge_port *p) 142365369933SHoratiu Vultur { 142465369933SHoratiu Vultur } 1425df42ef22SHoratiu Vultur 1426df42ef22SHoratiu Vultur static inline int br_mrp_fill_info(struct sk_buff *skb, struct net_bridge *br) 1427df42ef22SHoratiu Vultur { 1428df42ef22SHoratiu Vultur return 0; 1429df42ef22SHoratiu Vultur } 1430df42ef22SHoratiu Vultur 143165369933SHoratiu Vultur #endif 143265369933SHoratiu Vultur 143311dc1f36SStephen Hemminger /* br_netlink.c */ 1434149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1435348662a1SJoe Perches int br_netlink_init(void); 1436348662a1SJoe Perches void br_netlink_fini(void); 143792899063SNikolay Aleksandrov void br_ifinfo_notify(int event, const struct net_bridge *br, 143892899063SNikolay Aleksandrov const struct net_bridge_port *port); 14392fd527b7SPetr Machata int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, 14402fd527b7SPetr Machata struct netlink_ext_ack *extack); 1441add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1442348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 144346c264daSNicolas Dichtel u32 filter_mask, int nlflags); 1444f26b2965SNikolay Aleksandrov int br_process_vlan_info(struct net_bridge *br, 1445f26b2965SNikolay Aleksandrov struct net_bridge_port *p, int cmd, 1446f26b2965SNikolay Aleksandrov struct bridge_vlan_info *vinfo_curr, 1447f26b2965SNikolay Aleksandrov struct bridge_vlan_info **vinfo_last, 1448f26b2965SNikolay Aleksandrov bool *changed, 1449f26b2965SNikolay Aleksandrov struct netlink_ext_ack *extack); 145011dc1f36SStephen Hemminger 14511da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 14521da177e4SLinus Torvalds /* br_sysfs_if.c */ 145352cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1454348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1455348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 14561da177e4SLinus Torvalds 14571da177e4SLinus Torvalds /* br_sysfs_br.c */ 1458348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1459348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 14601da177e4SLinus Torvalds 14611da177e4SLinus Torvalds #else 14621da177e4SLinus Torvalds 14630cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 14640cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 14650cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 14660cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 14671da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 14681da177e4SLinus Torvalds 14696bc506b4SIdo Schimmel /* br_switchdev.c */ 14706bc506b4SIdo Schimmel #ifdef CONFIG_NET_SWITCHDEV 14716bc506b4SIdo Schimmel int nbp_switchdev_mark_set(struct net_bridge_port *p); 14726bc506b4SIdo Schimmel void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 14736bc506b4SIdo Schimmel struct sk_buff *skb); 14746bc506b4SIdo Schimmel bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 14756bc506b4SIdo Schimmel const struct sk_buff *skb); 14763922285dSArkadi Sharshevsky int br_switchdev_set_port_flag(struct net_bridge_port *p, 14773922285dSArkadi Sharshevsky unsigned long flags, 14783922285dSArkadi Sharshevsky unsigned long mask); 14796b26b51bSArkadi Sharshevsky void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, 14806b26b51bSArkadi Sharshevsky int type); 1481169327d5SPetr Machata int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, 1482169327d5SPetr Machata struct netlink_ext_ack *extack); 1483d66e4348SPetr Machata int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); 1484f1c2eddfSIdo Schimmel 1485f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1486f1c2eddfSIdo Schimmel { 1487f1c2eddfSIdo Schimmel skb->offload_fwd_mark = 0; 1488f1c2eddfSIdo Schimmel } 14896bc506b4SIdo Schimmel #else 14906bc506b4SIdo Schimmel static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) 14916bc506b4SIdo Schimmel { 14926bc506b4SIdo Schimmel return 0; 14936bc506b4SIdo Schimmel } 14946bc506b4SIdo Schimmel 14956bc506b4SIdo Schimmel static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, 14966bc506b4SIdo Schimmel struct sk_buff *skb) 14976bc506b4SIdo Schimmel { 14986bc506b4SIdo Schimmel } 14996bc506b4SIdo Schimmel 15006bc506b4SIdo Schimmel static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, 15016bc506b4SIdo Schimmel const struct sk_buff *skb) 15026bc506b4SIdo Schimmel { 15036bc506b4SIdo Schimmel return true; 15046bc506b4SIdo Schimmel } 15053922285dSArkadi Sharshevsky 15063922285dSArkadi Sharshevsky static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, 15073922285dSArkadi Sharshevsky unsigned long flags, 15083922285dSArkadi Sharshevsky unsigned long mask) 15093922285dSArkadi Sharshevsky { 15103922285dSArkadi Sharshevsky return 0; 15113922285dSArkadi Sharshevsky } 15126b26b51bSArkadi Sharshevsky 1513d66e4348SPetr Machata static inline int br_switchdev_port_vlan_add(struct net_device *dev, 1514169327d5SPetr Machata u16 vid, u16 flags, 1515169327d5SPetr Machata struct netlink_ext_ack *extack) 1516d66e4348SPetr Machata { 1517d66e4348SPetr Machata return -EOPNOTSUPP; 1518d66e4348SPetr Machata } 1519d66e4348SPetr Machata 1520d66e4348SPetr Machata static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) 1521d66e4348SPetr Machata { 1522d66e4348SPetr Machata return -EOPNOTSUPP; 1523d66e4348SPetr Machata } 1524d66e4348SPetr Machata 15256b26b51bSArkadi Sharshevsky static inline void 15266b26b51bSArkadi Sharshevsky br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) 15276b26b51bSArkadi Sharshevsky { 15286b26b51bSArkadi Sharshevsky } 1529f1c2eddfSIdo Schimmel 1530f1c2eddfSIdo Schimmel static inline void br_switchdev_frame_unmark(struct sk_buff *skb) 1531f1c2eddfSIdo Schimmel { 1532f1c2eddfSIdo Schimmel } 15336bc506b4SIdo Schimmel #endif /* CONFIG_NET_SWITCHDEV */ 15346bc506b4SIdo Schimmel 1535057658cbSRoopa Prabhu /* br_arp_nd_proxy.c */ 1536821f1b21SRoopa Prabhu void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); 1537057658cbSRoopa Prabhu void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, 1538057658cbSRoopa Prabhu u16 vid, struct net_bridge_port *p); 1539ed842faeSRoopa Prabhu void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, 1540ed842faeSRoopa Prabhu u16 vid, struct net_bridge_port *p, struct nd_msg *msg); 1541ed842faeSRoopa Prabhu struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); 15421da177e4SLinus Torvalds #endif 1543