11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * Linux ethernet bridge 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Authors: 51da177e4SLinus Torvalds * Lennert Buytenhek <buytenh@gnu.org> 61da177e4SLinus Torvalds * 71da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or 81da177e4SLinus Torvalds * modify it under the terms of the GNU General Public License 91da177e4SLinus Torvalds * as published by the Free Software Foundation; either version 101da177e4SLinus Torvalds * 2 of the License, or (at your option) any later version. 111da177e4SLinus Torvalds */ 121da177e4SLinus Torvalds 131da177e4SLinus Torvalds #ifndef _BR_PRIVATE_H 141da177e4SLinus Torvalds #define _BR_PRIVATE_H 151da177e4SLinus Torvalds 161da177e4SLinus Torvalds #include <linux/netdevice.h> 171da177e4SLinus Torvalds #include <linux/if_bridge.h> 1891d2c34aSHerbert Xu #include <linux/netpoll.h> 19406818ffSEric Dumazet #include <linux/u64_stats_sync.h> 204adf0af6SSimon Wunderlich #include <net/route.h> 21efb6de9bSBernhard Thaler #include <net/ip6_fib.h> 22243a2e63SVlad Yasevich #include <linux/if_vlan.h> 232594e906SNikolay Aleksandrov #include <linux/rhashtable.h> 241da177e4SLinus Torvalds 251da177e4SLinus Torvalds #define BR_HASH_BITS 8 261da177e4SLinus Torvalds #define BR_HASH_SIZE (1 << BR_HASH_BITS) 271da177e4SLinus Torvalds 281da177e4SLinus Torvalds #define BR_HOLD_TIME (1*HZ) 291da177e4SLinus Torvalds 301da177e4SLinus Torvalds #define BR_PORT_BITS 10 311da177e4SLinus Torvalds #define BR_MAX_PORTS (1<<BR_PORT_BITS) 321da177e4SLinus Torvalds 339cde0708SStephen Hemminger #define BR_VERSION "2.3" 349cde0708SStephen Hemminger 35515853ccSstephen hemminger /* Control of forwarding link local multicast */ 36515853ccSstephen hemminger #define BR_GROUPFWD_DEFAULT 0 37784b58a3SBernhard Thaler /* Don't allow forwarding of control protocols like STP, MAC PAUSE and LACP */ 38784b58a3SBernhard Thaler #define BR_GROUPFWD_RESTRICTED 0x0007u 39f2808d22SToshiaki Makita /* The Nearest Customer Bridge Group Address, 01-80-C2-00-00-[00,0B,0C,0D,0F] */ 40f2808d22SToshiaki Makita #define BR_GROUPFWD_8021AD 0xB801u 41515853ccSstephen hemminger 429cde0708SStephen Hemminger /* Path to usermode spanning tree program */ 439cde0708SStephen Hemminger #define BR_STP_PROG "/sbin/bridge-stp" 448cbb512eSStephen Hemminger 451da177e4SLinus Torvalds typedef struct bridge_id bridge_id; 461da177e4SLinus Torvalds typedef struct mac_addr mac_addr; 471da177e4SLinus Torvalds typedef __u16 port_id; 481da177e4SLinus Torvalds 491da177e4SLinus Torvalds struct bridge_id 501da177e4SLinus Torvalds { 511da177e4SLinus Torvalds unsigned char prio[2]; 52e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 531da177e4SLinus Torvalds }; 541da177e4SLinus Torvalds 551da177e4SLinus Torvalds struct mac_addr 561da177e4SLinus Torvalds { 57e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 581da177e4SLinus Torvalds }; 591da177e4SLinus Torvalds 60cc0fdd80SLinus Lüssing #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 61cc0fdd80SLinus Lüssing /* our own querier */ 6290010b36SLinus Lüssing struct bridge_mcast_own_query { 63cc0fdd80SLinus Lüssing struct timer_list timer; 64cc0fdd80SLinus Lüssing u32 startup_sent; 65cc0fdd80SLinus Lüssing }; 66cc0fdd80SLinus Lüssing 67cc0fdd80SLinus Lüssing /* other querier */ 6890010b36SLinus Lüssing struct bridge_mcast_other_query { 69cc0fdd80SLinus Lüssing struct timer_list timer; 70cc0fdd80SLinus Lüssing unsigned long delay_time; 71cc0fdd80SLinus Lüssing }; 72dc4eb53aSLinus Lüssing 73dc4eb53aSLinus Lüssing /* selected querier */ 74dc4eb53aSLinus Lüssing struct bridge_mcast_querier { 75dc4eb53aSLinus Lüssing struct br_ip addr; 762cd41431SLinus Lüssing struct net_bridge_port __rcu *port; 77dc4eb53aSLinus Lüssing }; 781080ab95SNikolay Aleksandrov 791080ab95SNikolay Aleksandrov /* IGMP/MLD statistics */ 801080ab95SNikolay Aleksandrov struct bridge_mcast_stats { 811080ab95SNikolay Aleksandrov struct br_mcast_stats mstats; 821080ab95SNikolay Aleksandrov struct u64_stats_sync syncp; 831080ab95SNikolay Aleksandrov }; 84cc0fdd80SLinus Lüssing #endif 85cc0fdd80SLinus Lüssing 866dada9b1SNikolay Aleksandrov struct br_vlan_stats { 876dada9b1SNikolay Aleksandrov u64 rx_bytes; 886dada9b1SNikolay Aleksandrov u64 rx_packets; 896dada9b1SNikolay Aleksandrov u64 tx_bytes; 906dada9b1SNikolay Aleksandrov u64 tx_packets; 916dada9b1SNikolay Aleksandrov struct u64_stats_sync syncp; 926dada9b1SNikolay Aleksandrov }; 936dada9b1SNikolay Aleksandrov 942594e906SNikolay Aleksandrov /** 952594e906SNikolay Aleksandrov * struct net_bridge_vlan - per-vlan entry 962594e906SNikolay Aleksandrov * 972594e906SNikolay Aleksandrov * @vnode: rhashtable member 982594e906SNikolay Aleksandrov * @vid: VLAN id 992594e906SNikolay Aleksandrov * @flags: bridge vlan flags 1006dada9b1SNikolay Aleksandrov * @stats: per-cpu VLAN statistics 1012594e906SNikolay Aleksandrov * @br: if MASTER flag set, this points to a bridge struct 1022594e906SNikolay Aleksandrov * @port: if MASTER flag unset, this points to a port struct 1032594e906SNikolay Aleksandrov * @refcnt: if MASTER flag set, this is bumped for each port referencing it 1042594e906SNikolay Aleksandrov * @brvlan: if MASTER flag unset, this points to the global per-VLAN context 1052594e906SNikolay Aleksandrov * for this VLAN entry 1062594e906SNikolay Aleksandrov * @vlist: sorted list of VLAN entries 1072594e906SNikolay Aleksandrov * @rcu: used for entry destruction 1082594e906SNikolay Aleksandrov * 1092594e906SNikolay Aleksandrov * This structure is shared between the global per-VLAN entries contained in 1102594e906SNikolay Aleksandrov * the bridge rhashtable and the local per-port per-VLAN entries contained in 1112594e906SNikolay Aleksandrov * the port's rhashtable. The union entries should be interpreted depending on 1122594e906SNikolay Aleksandrov * the entry flags that are set. 1132594e906SNikolay Aleksandrov */ 1142594e906SNikolay Aleksandrov struct net_bridge_vlan { 1152594e906SNikolay Aleksandrov struct rhash_head vnode; 1162594e906SNikolay Aleksandrov u16 vid; 1172594e906SNikolay Aleksandrov u16 flags; 1186dada9b1SNikolay Aleksandrov struct br_vlan_stats __percpu *stats; 119243a2e63SVlad Yasevich union { 120243a2e63SVlad Yasevich struct net_bridge *br; 1212594e906SNikolay Aleksandrov struct net_bridge_port *port; 1222594e906SNikolay Aleksandrov }; 1232594e906SNikolay Aleksandrov union { 1242594e906SNikolay Aleksandrov atomic_t refcnt; 1252594e906SNikolay Aleksandrov struct net_bridge_vlan *brvlan; 1262594e906SNikolay Aleksandrov }; 1272594e906SNikolay Aleksandrov struct list_head vlist; 1282594e906SNikolay Aleksandrov 129243a2e63SVlad Yasevich struct rcu_head rcu; 1302594e906SNikolay Aleksandrov }; 1312594e906SNikolay Aleksandrov 1322594e906SNikolay Aleksandrov /** 1332594e906SNikolay Aleksandrov * struct net_bridge_vlan_group 1342594e906SNikolay Aleksandrov * 1352594e906SNikolay Aleksandrov * @vlan_hash: VLAN entry rhashtable 1362594e906SNikolay Aleksandrov * @vlan_list: sorted VLAN entry list 1372594e906SNikolay Aleksandrov * @num_vlans: number of total VLAN entries 13877751ee8SNikolay Aleksandrov * @pvid: PVID VLAN id 1392594e906SNikolay Aleksandrov * 1402594e906SNikolay Aleksandrov * IMPORTANT: Be careful when checking if there're VLAN entries using list 1412594e906SNikolay Aleksandrov * primitives because the bridge can have entries in its list which 1422594e906SNikolay Aleksandrov * are just for global context but not for filtering, i.e. they have 1432594e906SNikolay Aleksandrov * the master flag set but not the brentry flag. If you have to check 1442594e906SNikolay Aleksandrov * if there're "real" entries in the bridge please test @num_vlans 1452594e906SNikolay Aleksandrov */ 1462594e906SNikolay Aleksandrov struct net_bridge_vlan_group { 1472594e906SNikolay Aleksandrov struct rhashtable vlan_hash; 1482594e906SNikolay Aleksandrov struct list_head vlan_list; 1496cbdceebSVlad Yasevich u16 num_vlans; 15077751ee8SNikolay Aleksandrov u16 pvid; 151243a2e63SVlad Yasevich }; 152243a2e63SVlad Yasevich 1531da177e4SLinus Torvalds struct net_bridge_fdb_entry 1541da177e4SLinus Torvalds { 1551da177e4SLinus Torvalds struct hlist_node hlist; 1561da177e4SLinus Torvalds struct net_bridge_port *dst; 1571da177e4SLinus Torvalds 1587cd8861aSstephen hemminger unsigned long updated; 1597cd8861aSstephen hemminger unsigned long used; 1601da177e4SLinus Torvalds mac_addr addr; 161b22fbf22SNikolay Aleksandrov __u16 vlan_id; 16293859b13SJiri Pirko unsigned char is_local:1, 16393859b13SJiri Pirko is_static:1, 164cf6b8e1eSScott Feldman added_by_user:1, 165cf6b8e1eSScott Feldman added_by_external_learn:1; 166b22fbf22SNikolay Aleksandrov struct rcu_head rcu; 1671da177e4SLinus Torvalds }; 1681da177e4SLinus Torvalds 1699d06b6d8SElad Raz #define MDB_PG_FLAGS_PERMANENT BIT(0) 1709d06b6d8SElad Raz #define MDB_PG_FLAGS_OFFLOAD BIT(1) 1719d06b6d8SElad Raz 172eb1d1641SHerbert Xu struct net_bridge_port_group { 173eb1d1641SHerbert Xu struct net_bridge_port *port; 174e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 175eb1d1641SHerbert Xu struct hlist_node mglist; 176eb1d1641SHerbert Xu struct rcu_head rcu; 177eb1d1641SHerbert Xu struct timer_list timer; 1788ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 1799d06b6d8SElad Raz unsigned char flags; 180eb1d1641SHerbert Xu }; 181eb1d1641SHerbert Xu 182eb1d1641SHerbert Xu struct net_bridge_mdb_entry 183eb1d1641SHerbert Xu { 184eb1d1641SHerbert Xu struct hlist_node hlist[2]; 185eb1d1641SHerbert Xu struct net_bridge *br; 186e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 187eb1d1641SHerbert Xu struct rcu_head rcu; 188eb1d1641SHerbert Xu struct timer_list timer; 1898ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 1908a870178SHerbert Xu bool mglist; 191eb1d1641SHerbert Xu }; 192eb1d1641SHerbert Xu 193eb1d1641SHerbert Xu struct net_bridge_mdb_htable 194eb1d1641SHerbert Xu { 195eb1d1641SHerbert Xu struct hlist_head *mhash; 196eb1d1641SHerbert Xu struct rcu_head rcu; 197eb1d1641SHerbert Xu struct net_bridge_mdb_htable *old; 198eb1d1641SHerbert Xu u32 size; 199eb1d1641SHerbert Xu u32 max; 200eb1d1641SHerbert Xu u32 secret; 201eb1d1641SHerbert Xu u32 ver; 202eb1d1641SHerbert Xu }; 203eb1d1641SHerbert Xu 2041da177e4SLinus Torvalds struct net_bridge_port 2051da177e4SLinus Torvalds { 2061da177e4SLinus Torvalds struct net_bridge *br; 2071da177e4SLinus Torvalds struct net_device *dev; 2081da177e4SLinus Torvalds struct list_head list; 2091da177e4SLinus Torvalds 2101da177e4SLinus Torvalds /* STP */ 2111da177e4SLinus Torvalds u8 priority; 2121da177e4SLinus Torvalds u8 state; 2131da177e4SLinus Torvalds u16 port_no; 2141da177e4SLinus Torvalds unsigned char topology_change_ack; 2151da177e4SLinus Torvalds unsigned char config_pending; 2161da177e4SLinus Torvalds port_id port_id; 2171da177e4SLinus Torvalds port_id designated_port; 2181da177e4SLinus Torvalds bridge_id designated_root; 2191da177e4SLinus Torvalds bridge_id designated_bridge; 2201da177e4SLinus Torvalds u32 path_cost; 2211da177e4SLinus Torvalds u32 designated_cost; 2220c03150eSstephen hemminger unsigned long designated_age; 2231da177e4SLinus Torvalds 2241da177e4SLinus Torvalds struct timer_list forward_delay_timer; 2251da177e4SLinus Torvalds struct timer_list hold_timer; 2261da177e4SLinus Torvalds struct timer_list message_age_timer; 2271da177e4SLinus Torvalds struct kobject kobj; 2281da177e4SLinus Torvalds struct rcu_head rcu; 2293982d3d2SFischer, Anna 2303982d3d2SFischer, Anna unsigned long flags; 231eb1d1641SHerbert Xu 232eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 23390010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 234cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 23590010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 236cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 237eb1d1641SHerbert Xu unsigned char multicast_router; 2381080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 239eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 240eb1d1641SHerbert Xu struct hlist_head mglist; 241eb1d1641SHerbert Xu struct hlist_node rlist; 242eb1d1641SHerbert Xu #endif 243e0f43752SSimon Arlott 244e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 245e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 246e0f43752SSimon Arlott #endif 24791d2c34aSHerbert Xu 24891d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 24991d2c34aSHerbert Xu struct netpoll *np; 25091d2c34aSHerbert Xu #endif 251243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 252907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 253243a2e63SVlad Yasevich #endif 2541da177e4SLinus Torvalds }; 2551da177e4SLinus Torvalds 256e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 257f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 258e028e4b8SVlad Yasevich 259f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 260f350a0a8SJiri Pirko 261b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 262b5ed54e9Sstephen hemminger { 263716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 264b5ed54e9Sstephen hemminger } 265b5ed54e9Sstephen hemminger 2661fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 267b5ed54e9Sstephen hemminger { 268ec1e5610SEric Dumazet return br_port_exists(dev) ? 269ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 270b5ed54e9Sstephen hemminger } 271b5ed54e9Sstephen hemminger 2721da177e4SLinus Torvalds struct net_bridge 2731da177e4SLinus Torvalds { 2741da177e4SLinus Torvalds spinlock_t lock; 2751da177e4SLinus Torvalds struct list_head port_list; 2761da177e4SLinus Torvalds struct net_device *dev; 27714bb4789Sstephen hemminger 2788f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 2791da177e4SLinus Torvalds spinlock_t hash_lock; 2801da177e4SLinus Torvalds struct hlist_head hash[BR_HASH_SIZE]; 28134666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 282efb6de9bSBernhard Thaler union { 2834adf0af6SSimon Wunderlich struct rtable fake_rtable; 284efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 285efb6de9bSBernhard Thaler }; 2864df53d8bSPatrick McHardy bool nf_call_iptables; 2874df53d8bSPatrick McHardy bool nf_call_ip6tables; 2884df53d8bSPatrick McHardy bool nf_call_arptables; 2894adf0af6SSimon Wunderlich #endif 290515853ccSstephen hemminger u16 group_fwd_mask; 291f2808d22SToshiaki Makita u16 group_fwd_mask_required; 292515853ccSstephen hemminger 2931da177e4SLinus Torvalds /* STP */ 2941da177e4SLinus Torvalds bridge_id designated_root; 2951da177e4SLinus Torvalds bridge_id bridge_id; 2961da177e4SLinus Torvalds u32 root_path_cost; 2971da177e4SLinus Torvalds unsigned long max_age; 2981da177e4SLinus Torvalds unsigned long hello_time; 2991da177e4SLinus Torvalds unsigned long forward_delay; 3001da177e4SLinus Torvalds unsigned long bridge_max_age; 3011da177e4SLinus Torvalds unsigned long ageing_time; 3021da177e4SLinus Torvalds unsigned long bridge_hello_time; 3031da177e4SLinus Torvalds unsigned long bridge_forward_delay; 3041da177e4SLinus Torvalds 305fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 306204177f3SToshiaki Makita bool group_addr_set; 3071da177e4SLinus Torvalds u16 root_port; 3089cde0708SStephen Hemminger 3099cde0708SStephen Hemminger enum { 3109cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 3119cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 3129cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 3139cde0708SStephen Hemminger } stp_enabled; 3149cde0708SStephen Hemminger 3151da177e4SLinus Torvalds unsigned char topology_change; 3161da177e4SLinus Torvalds unsigned char topology_change_detected; 3171da177e4SLinus Torvalds 318eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 319eb1d1641SHerbert Xu unsigned char multicast_router; 320eb1d1641SHerbert Xu 321eb1d1641SHerbert Xu u8 multicast_disabled:1; 322c5c23260SHerbert Xu u8 multicast_querier:1; 3231c8ad5bfSCong Wang u8 multicast_query_use_ifaddr:1; 3240888d5f3Sdaniel u8 has_ipv6_addr:1; 3251080ab95SNikolay Aleksandrov u8 multicast_stats_enabled:1; 326eb1d1641SHerbert Xu 327eb1d1641SHerbert Xu u32 hash_elasticity; 328eb1d1641SHerbert Xu u32 hash_max; 329eb1d1641SHerbert Xu 330eb1d1641SHerbert Xu u32 multicast_last_member_count; 331eb1d1641SHerbert Xu u32 multicast_startup_query_count; 332eb1d1641SHerbert Xu 333eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 334eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 335eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 336eb1d1641SHerbert Xu unsigned long multicast_query_interval; 337eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 338eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 339eb1d1641SHerbert Xu 340eb1d1641SHerbert Xu spinlock_t multicast_lock; 341e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 342eb1d1641SHerbert Xu struct hlist_head router_list; 343eb1d1641SHerbert Xu 344eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 34590010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 34690010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 347dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 3481080ab95SNikolay Aleksandrov struct bridge_mcast_stats __percpu *mcast_stats; 349cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 35090010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 35190010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 352dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 353cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 354eb1d1641SHerbert Xu #endif 355eb1d1641SHerbert Xu 3561da177e4SLinus Torvalds struct timer_list hello_timer; 3571da177e4SLinus Torvalds struct timer_list tcn_timer; 3581da177e4SLinus Torvalds struct timer_list topology_change_timer; 3591da177e4SLinus Torvalds struct timer_list gc_timer; 36043b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 361e028e4b8SVlad Yasevich u32 auto_cnt; 362243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 363907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 364243a2e63SVlad Yasevich u8 vlan_enabled; 3656dada9b1SNikolay Aleksandrov u8 vlan_stats_enabled; 3668580e211SToshiaki Makita __be16 vlan_proto; 36796a20d9dSVlad Yasevich u16 default_pvid; 368243a2e63SVlad Yasevich #endif 3691da177e4SLinus Torvalds }; 3701da177e4SLinus Torvalds 37168b7c895SHerbert Xu struct br_input_skb_cb { 37268b7c895SHerbert Xu struct net_device *brdev; 37393fdd47eSHerbert Xu 37432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 375eb1d1641SHerbert Xu int igmp; 376eb1d1641SHerbert Xu int mrouters_only; 37732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 37893fdd47eSHerbert Xu 379842a9ae0SJouni Malinen bool proxyarp_replied; 38093fdd47eSHerbert Xu 38120adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 38220adfa1aSVlad Yasevich bool vlan_filtered; 38320adfa1aSVlad Yasevich #endif 38468b7c895SHerbert Xu }; 38568b7c895SHerbert Xu 38668b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 38768b7c895SHerbert Xu 38832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 38932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 39032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 39132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 39232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 39332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 39428a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 39528a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 39628a16c97Sstephen hemminger 39728a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 39828a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 39928a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 40028a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 40128a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 40228a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 40328a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 40428a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 40528a16c97Sstephen hemminger 40628a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 40728a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 40828a16c97Sstephen hemminger 4091da177e4SLinus Torvalds /* called under bridge lock */ 4101da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 4111da177e4SLinus Torvalds { 4121da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 4131da177e4SLinus Torvalds } 4141da177e4SLinus Torvalds 4152594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 4162594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 4172594e906SNikolay Aleksandrov { 4182594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 4192594e906SNikolay Aleksandrov } 4202594e906SNikolay Aleksandrov 4212594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 4222594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 4232594e906SNikolay Aleksandrov { 4242594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 4252594e906SNikolay Aleksandrov } 4262594e906SNikolay Aleksandrov 4276be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 4282594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 4292594e906SNikolay Aleksandrov { 4302594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 4312594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 4322594e906SNikolay Aleksandrov return true; 4332594e906SNikolay Aleksandrov else 4342594e906SNikolay Aleksandrov return false; 4352594e906SNikolay Aleksandrov } 4362594e906SNikolay Aleksandrov 4372594e906SNikolay Aleksandrov return true; 4382594e906SNikolay Aleksandrov } 4392594e906SNikolay Aleksandrov 4401da177e4SLinus Torvalds /* br_device.c */ 441348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 442348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 443348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 444cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 44591d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 44691d2c34aSHerbert Xu struct sk_buff *skb) 44791d2c34aSHerbert Xu { 44891d2c34aSHerbert Xu struct netpoll *np = p->np; 44991d2c34aSHerbert Xu 45091d2c34aSHerbert Xu if (np) 45191d2c34aSHerbert Xu netpoll_send_skb(np, skb); 45291d2c34aSHerbert Xu } 45391d2c34aSHerbert Xu 454a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 455348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 45691d2c34aSHerbert Xu #else 4579f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 45891d2c34aSHerbert Xu struct sk_buff *skb) 45991d2c34aSHerbert Xu { 46091d2c34aSHerbert Xu } 46191d2c34aSHerbert Xu 462a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 46391d2c34aSHerbert Xu { 46491d2c34aSHerbert Xu return 0; 46591d2c34aSHerbert Xu } 46691d2c34aSHerbert Xu 46791d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 46891d2c34aSHerbert Xu { 46991d2c34aSHerbert Xu } 470cfb478daSstephen hemminger #endif 4711da177e4SLinus Torvalds 4721da177e4SLinus Torvalds /* br_fdb.c */ 473348662a1SJoe Perches int br_fdb_init(void); 474348662a1SJoe Perches void br_fdb_fini(void); 475348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 476424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 477424bb9c9SToshiaki Makita const struct net_bridge_port *p, 478424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 479348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 480348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 481348662a1SJoe Perches void br_fdb_cleanup(unsigned long arg); 482348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 4831ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 484348662a1SJoe Perches struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, 485348662a1SJoe Perches const unsigned char *addr, __u16 vid); 486348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 487348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 488348662a1SJoe Perches unsigned long off); 489348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 490348662a1SJoe Perches const unsigned char *addr, u16 vid); 491348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 492a5642ab4SToshiaki Makita const unsigned char *addr, u16 vid, bool added_by_user); 49377162022SJohn Fastabend 494348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 495f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 496348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 497f6f6424bSJiri Pirko const unsigned char *addr, u16 vid, u16 nlh_flags); 498348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 4995d5eacb3SJamal Hadi Salim struct net_device *dev, struct net_device *fdev, int idx); 5008db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 5018db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 5023aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 5033aeb6617SJiri Pirko const unsigned char *addr, u16 vid); 5043aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 5053aeb6617SJiri Pirko const unsigned char *addr, u16 vid); 5061da177e4SLinus Torvalds 5071da177e4SLinus Torvalds /* br_forward.c */ 508348662a1SJoe Perches void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb); 5090c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 510348662a1SJoe Perches void br_forward(const struct net_bridge_port *to, 5117f7708f0SMichael Braun struct sk_buff *skb, struct sk_buff *skb0); 5120c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 513348662a1SJoe Perches void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast); 514348662a1SJoe Perches void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, 515867a5943SVlad Yasevich struct sk_buff *skb2, bool unicast); 5161da177e4SLinus Torvalds 5171da177e4SLinus Torvalds /* br_if.c */ 518348662a1SJoe Perches void br_port_carrier_check(struct net_bridge_port *p); 519348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 520348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 521348662a1SJoe Perches int br_add_if(struct net_bridge *br, struct net_device *dev); 522348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 523348662a1SJoe Perches int br_min_mtu(const struct net_bridge *br); 524348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 525c8f44affSMichał Mirosław netdev_features_t features); 526e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 5272796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 5281da177e4SLinus Torvalds 5291da177e4SLinus Torvalds /* br_input.c */ 5300c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 531348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 5321da177e4SLinus Torvalds 533859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 534859828c0SJiri Pirko { 535859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 536859828c0SJiri Pirko } 537859828c0SJiri Pirko 538859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 539859828c0SJiri Pirko { 540859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 541859828c0SJiri Pirko } 542859828c0SJiri Pirko 5431da177e4SLinus Torvalds /* br_ioctl.c */ 544348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 545348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 546348662a1SJoe Perches void __user *arg); 5471da177e4SLinus Torvalds 548eb1d1641SHerbert Xu /* br_multicast.c */ 549eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 5502ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 551348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 552fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 553348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 554eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 5551080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 556348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 557348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 558348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 559348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 560348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 561348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 562e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 563348662a1SJoe Perches void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 5645cb5e947SHerbert Xu struct sk_buff *skb); 565348662a1SJoe Perches void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 5665cb5e947SHerbert Xu struct sk_buff *skb, struct sk_buff *skb2); 567348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 568348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 569348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 570348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 571348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 572348662a1SJoe Perches struct net_bridge_mdb_entry * 573348662a1SJoe Perches br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); 574348662a1SJoe Perches struct net_bridge_mdb_entry * 575348662a1SJoe Perches br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, 576348662a1SJoe Perches struct br_ip *group); 577348662a1SJoe Perches void br_multicast_free_pg(struct rcu_head *head); 578348662a1SJoe Perches struct net_bridge_port_group * 579348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 580762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 5819d06b6d8SElad Raz unsigned char flags); 582348662a1SJoe Perches void br_mdb_init(void); 583348662a1SJoe Perches void br_mdb_uninit(void); 58445ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 58545ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 586949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 587949f1e39SSatish Ashok int type); 5881080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 5891080ab95SNikolay Aleksandrov __be16 proto, u8 type, u8 dir); 5901080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 5911080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 5921080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 5931080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 59485b35269SSridhar Samudrala 595cfd56754SCong Wang #define mlock_dereference(X, br) \ 596cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 597cfd56754SCong Wang 59885b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 59985b35269SSridhar Samudrala { 60085b35269SSridhar Samudrala return br->multicast_router == 2 || 60185b35269SSridhar Samudrala (br->multicast_router == 1 && 60285b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 60385b35269SSridhar Samudrala } 604b00589afSLinus Lüssing 605cc0fdd80SLinus Lüssing static inline bool 606cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 6070888d5f3Sdaniel struct bridge_mcast_other_query *querier, 6080888d5f3Sdaniel const bool is_ipv6) 609b00589afSLinus Lüssing { 6100888d5f3Sdaniel bool own_querier_enabled; 6110888d5f3Sdaniel 6120888d5f3Sdaniel if (br->multicast_querier) { 6130888d5f3Sdaniel if (is_ipv6 && !br->has_ipv6_addr) 6140888d5f3Sdaniel own_querier_enabled = false; 6150888d5f3Sdaniel else 6160888d5f3Sdaniel own_querier_enabled = true; 6170888d5f3Sdaniel } else { 6180888d5f3Sdaniel own_querier_enabled = false; 6190888d5f3Sdaniel } 6200888d5f3Sdaniel 621cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 6220888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 623cc0fdd80SLinus Lüssing } 624cc0fdd80SLinus Lüssing 625cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 626cc0fdd80SLinus Lüssing struct ethhdr *eth) 627cc0fdd80SLinus Lüssing { 628cc0fdd80SLinus Lüssing switch (eth->h_proto) { 629cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 6300888d5f3Sdaniel return __br_multicast_querier_exists(br, 6310888d5f3Sdaniel &br->ip4_other_query, false); 632cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 633cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 6340888d5f3Sdaniel return __br_multicast_querier_exists(br, 6350888d5f3Sdaniel &br->ip6_other_query, true); 636cc0fdd80SLinus Lüssing #endif 637cc0fdd80SLinus Lüssing default: 638cc0fdd80SLinus Lüssing return false; 639cc0fdd80SLinus Lüssing } 640b00589afSLinus Lüssing } 6411080ab95SNikolay Aleksandrov 6421080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 6431080ab95SNikolay Aleksandrov { 6441080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 6451080ab95SNikolay Aleksandrov } 646eb1d1641SHerbert Xu #else 647eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 648eb1d1641SHerbert Xu struct net_bridge_port *port, 64906499098SVlad Yasevich struct sk_buff *skb, 65006499098SVlad Yasevich u16 vid) 651eb1d1641SHerbert Xu { 652eb1d1641SHerbert Xu return 0; 653eb1d1641SHerbert Xu } 654eb1d1641SHerbert Xu 655eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 656fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 657eb1d1641SHerbert Xu { 658eb1d1641SHerbert Xu return NULL; 659eb1d1641SHerbert Xu } 660eb1d1641SHerbert Xu 6611080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 662eb1d1641SHerbert Xu { 6631080ab95SNikolay Aleksandrov return 0; 664eb1d1641SHerbert Xu } 665eb1d1641SHerbert Xu 666eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 667eb1d1641SHerbert Xu { 668eb1d1641SHerbert Xu } 669eb1d1641SHerbert Xu 670eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 671eb1d1641SHerbert Xu { 672eb1d1641SHerbert Xu } 673eb1d1641SHerbert Xu 674eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 675eb1d1641SHerbert Xu { 676eb1d1641SHerbert Xu } 677eb1d1641SHerbert Xu 678eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 679eb1d1641SHerbert Xu { 680eb1d1641SHerbert Xu } 681eb1d1641SHerbert Xu 682eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 683eb1d1641SHerbert Xu { 684eb1d1641SHerbert Xu } 685eb1d1641SHerbert Xu 686eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 687eb1d1641SHerbert Xu { 688eb1d1641SHerbert Xu } 6895cb5e947SHerbert Xu 690a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 691a7ce45a7SNikolay Aleksandrov { 692a7ce45a7SNikolay Aleksandrov } 693a7ce45a7SNikolay Aleksandrov 6945cb5e947SHerbert Xu static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 6955cb5e947SHerbert Xu struct sk_buff *skb) 6965cb5e947SHerbert Xu { 6975cb5e947SHerbert Xu } 6985cb5e947SHerbert Xu 6995cb5e947SHerbert Xu static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 7005cb5e947SHerbert Xu struct sk_buff *skb, 7015cb5e947SHerbert Xu struct sk_buff *skb2) 7025cb5e947SHerbert Xu { 7035cb5e947SHerbert Xu } 704eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 705eb1d1641SHerbert Xu { 70685b35269SSridhar Samudrala return 0; 707eb1d1641SHerbert Xu } 708cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 709cc0fdd80SLinus Lüssing struct ethhdr *eth) 710b00589afSLinus Lüssing { 711b00589afSLinus Lüssing return false; 712b00589afSLinus Lüssing } 713fdb184d1SRami Rosen static inline void br_mdb_init(void) 714fdb184d1SRami Rosen { 715fdb184d1SRami Rosen } 716fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 717fdb184d1SRami Rosen { 718fdb184d1SRami Rosen } 7191080ab95SNikolay Aleksandrov 7201080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 7211080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 7221080ab95SNikolay Aleksandrov __be16 proto, u8 type, u8 dir) 7231080ab95SNikolay Aleksandrov { 7241080ab95SNikolay Aleksandrov } 7251080ab95SNikolay Aleksandrov 7261080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 7271080ab95SNikolay Aleksandrov { 7281080ab95SNikolay Aleksandrov return 0; 7291080ab95SNikolay Aleksandrov } 7301080ab95SNikolay Aleksandrov 7311080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 7321080ab95SNikolay Aleksandrov { 7331080ab95SNikolay Aleksandrov return 0; 7341080ab95SNikolay Aleksandrov } 73585b35269SSridhar Samudrala #endif 736eb1d1641SHerbert Xu 737243a2e63SVlad Yasevich /* br_vlan.c */ 738243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 73977751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 74077751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 7412594e906SNikolay Aleksandrov u16 *vid); 74277751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 74385f46c6bSVlad Yasevich const struct sk_buff *skb); 744e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 745348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 7462594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 74778851988SVlad Yasevich struct sk_buff *skb); 748348662a1SJoe Perches int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); 749348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 750348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 7512594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 752204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 753a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 754348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 755d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 756204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 7576dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 7585be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 75996a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 7600f963b75SNikolay Aleksandrov int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid); 761348662a1SJoe Perches int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); 762348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 763348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 7645be5a2dfSVlad Yasevich int nbp_vlan_init(struct net_bridge_port *port); 7652594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 766a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 767a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 768a37b85c9SVlad Yasevich 7692594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 770a37b85c9SVlad Yasevich const struct net_bridge *br) 771a37b85c9SVlad Yasevich { 772907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 773a37b85c9SVlad Yasevich } 774a37b85c9SVlad Yasevich 7752594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 776a37b85c9SVlad Yasevich const struct net_bridge_port *p) 777a37b85c9SVlad Yasevich { 778907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 779907b1e6eSNikolay Aleksandrov } 780907b1e6eSNikolay Aleksandrov 781907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 782907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 783907b1e6eSNikolay Aleksandrov { 784907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 785907b1e6eSNikolay Aleksandrov } 786907b1e6eSNikolay Aleksandrov 787907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 788907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 789907b1e6eSNikolay Aleksandrov { 790907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 791a37b85c9SVlad Yasevich } 792a37b85c9SVlad Yasevich 793a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 794a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 795a37b85c9SVlad Yasevich */ 796a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 797a37b85c9SVlad Yasevich { 798a37b85c9SVlad Yasevich int err = 0; 799a37b85c9SVlad Yasevich 8002594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 801df8a39deSJiri Pirko *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; 8022594e906SNikolay Aleksandrov } else { 803a37b85c9SVlad Yasevich *vid = 0; 804a37b85c9SVlad Yasevich err = -EINVAL; 805a37b85c9SVlad Yasevich } 806a37b85c9SVlad Yasevich 807a37b85c9SVlad Yasevich return err; 808a37b85c9SVlad Yasevich } 80978851988SVlad Yasevich 81077751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 81178851988SVlad Yasevich { 81277751ee8SNikolay Aleksandrov if (!vg) 8135be5a2dfSVlad Yasevich return 0; 8145be5a2dfSVlad Yasevich 81578851988SVlad Yasevich smp_rmb(); 81677751ee8SNikolay Aleksandrov return vg->pvid; 81778851988SVlad Yasevich } 81878851988SVlad Yasevich 8192796d0c6SVlad Yasevich static inline int br_vlan_enabled(struct net_bridge *br) 8202796d0c6SVlad Yasevich { 8212796d0c6SVlad Yasevich return br->vlan_enabled; 8222796d0c6SVlad Yasevich } 823243a2e63SVlad Yasevich #else 82477751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 82577751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 8262594e906SNikolay Aleksandrov struct sk_buff *skb, 8272594e906SNikolay Aleksandrov u16 *vid) 8282594e906SNikolay Aleksandrov { 8292594e906SNikolay Aleksandrov return true; 8302594e906SNikolay Aleksandrov } 8312594e906SNikolay Aleksandrov 8322594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 83385f46c6bSVlad Yasevich const struct sk_buff *skb) 83485f46c6bSVlad Yasevich { 83585f46c6bSVlad Yasevich return true; 83685f46c6bSVlad Yasevich } 83785f46c6bSVlad Yasevich 838e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 839e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 840e0d7968aSToshiaki Makita { 841e0d7968aSToshiaki Makita return true; 842e0d7968aSToshiaki Makita } 843e0d7968aSToshiaki Makita 84478851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 8452594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 84678851988SVlad Yasevich struct sk_buff *skb) 84778851988SVlad Yasevich { 84878851988SVlad Yasevich return skb; 84978851988SVlad Yasevich } 85078851988SVlad Yasevich 851552406c4SVlad Yasevich static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) 852243a2e63SVlad Yasevich { 853243a2e63SVlad Yasevich return -EOPNOTSUPP; 854243a2e63SVlad Yasevich } 855243a2e63SVlad Yasevich 856243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 857243a2e63SVlad Yasevich { 858243a2e63SVlad Yasevich return -EOPNOTSUPP; 859243a2e63SVlad Yasevich } 860243a2e63SVlad Yasevich 861243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 862243a2e63SVlad Yasevich { 863243a2e63SVlad Yasevich } 864243a2e63SVlad Yasevich 865204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 866204177f3SToshiaki Makita { 867204177f3SToshiaki Makita } 868204177f3SToshiaki Makita 8695be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 8708580e211SToshiaki Makita { 8715be5a2dfSVlad Yasevich return 0; 8728580e211SToshiaki Makita } 8738580e211SToshiaki Makita 874552406c4SVlad Yasevich static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) 875243a2e63SVlad Yasevich { 876243a2e63SVlad Yasevich return -EOPNOTSUPP; 877243a2e63SVlad Yasevich } 878243a2e63SVlad Yasevich 879243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 880243a2e63SVlad Yasevich { 881243a2e63SVlad Yasevich return -EOPNOTSUPP; 882243a2e63SVlad Yasevich } 883243a2e63SVlad Yasevich 884243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 885243a2e63SVlad Yasevich { 886243a2e63SVlad Yasevich } 887243a2e63SVlad Yasevich 8882594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 8892594e906SNikolay Aleksandrov u16 vid) 890a37b85c9SVlad Yasevich { 891a37b85c9SVlad Yasevich return NULL; 892a37b85c9SVlad Yasevich } 893bc9a25d2SVlad Yasevich 8945be5a2dfSVlad Yasevich static inline int nbp_vlan_init(struct net_bridge_port *port) 8955be5a2dfSVlad Yasevich { 8965be5a2dfSVlad Yasevich return 0; 8975be5a2dfSVlad Yasevich } 8985be5a2dfSVlad Yasevich 89978851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 900a37b85c9SVlad Yasevich { 901a37b85c9SVlad Yasevich return 0; 902a37b85c9SVlad Yasevich } 9032594e906SNikolay Aleksandrov 90477751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 90578851988SVlad Yasevich { 9063df6bf45SVlad Yasevich return 0; 90778851988SVlad Yasevich } 9082796d0c6SVlad Yasevich 909d4f0e095SAlexei Starovoitov static inline int br_vlan_enabled(struct net_bridge *br) 9102796d0c6SVlad Yasevich { 9112796d0c6SVlad Yasevich return 0; 9122796d0c6SVlad Yasevich } 913a7854037SNikolay Aleksandrov 914a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 915a7854037SNikolay Aleksandrov unsigned long val) 916a7854037SNikolay Aleksandrov { 917a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 918a7854037SNikolay Aleksandrov } 9192594e906SNikolay Aleksandrov 9202594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 9212594e906SNikolay Aleksandrov u32 filter_mask) 9222594e906SNikolay Aleksandrov { 9232594e906SNikolay Aleksandrov return 0; 9242594e906SNikolay Aleksandrov } 9252594e906SNikolay Aleksandrov 9262594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 9272594e906SNikolay Aleksandrov const struct net_bridge *br) 9282594e906SNikolay Aleksandrov { 9292594e906SNikolay Aleksandrov return NULL; 9302594e906SNikolay Aleksandrov } 9312594e906SNikolay Aleksandrov 9322594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 9332594e906SNikolay Aleksandrov const struct net_bridge_port *p) 9342594e906SNikolay Aleksandrov { 9352594e906SNikolay Aleksandrov return NULL; 9362594e906SNikolay Aleksandrov } 937907b1e6eSNikolay Aleksandrov 938907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 939907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 940907b1e6eSNikolay Aleksandrov { 941907b1e6eSNikolay Aleksandrov return NULL; 942907b1e6eSNikolay Aleksandrov } 943907b1e6eSNikolay Aleksandrov 944907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 945907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 946907b1e6eSNikolay Aleksandrov { 947907b1e6eSNikolay Aleksandrov return NULL; 948907b1e6eSNikolay Aleksandrov } 949a60c0903SNikolay Aleksandrov 950a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 951a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 952a60c0903SNikolay Aleksandrov { 953a60c0903SNikolay Aleksandrov } 954243a2e63SVlad Yasevich #endif 955243a2e63SVlad Yasevich 9561a4ba64dSPablo Neira Ayuso struct nf_br_ops { 9571a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 9581a4ba64dSPablo Neira Ayuso }; 9591a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 9601a4ba64dSPablo Neira Ayuso 9611da177e4SLinus Torvalds /* br_netfilter.c */ 96234666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 96334666d46SPablo Neira Ayuso int br_nf_core_init(void); 96434666d46SPablo Neira Ayuso void br_nf_core_fini(void); 965348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 966c0909713SStephen Hemminger #else 96734666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 96834666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 9694adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 970c0909713SStephen Hemminger #endif 9711da177e4SLinus Torvalds 9721da177e4SLinus Torvalds /* br_stp.c */ 973775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 974348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 975348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 976348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 9771da177e4SLinus Torvalds 978348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 979348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 980348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 981348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 982c62987bbSScott Feldman int br_set_ageing_time(struct net_bridge *br, u32 ageing_time); 98314f98f25Sstephen hemminger 98414f98f25Sstephen hemminger 9851da177e4SLinus Torvalds /* br_stp_if.c */ 986348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 987348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 988348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 989348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 990348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 991348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 992348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 993348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 994348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 995348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 996348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 9971da177e4SLinus Torvalds 9981da177e4SLinus Torvalds /* br_stp_bpdu.c */ 9997c85fbf0SPatrick McHardy struct stp_proto; 1000348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 10017c85fbf0SPatrick McHardy struct net_device *dev); 10021da177e4SLinus Torvalds 10031da177e4SLinus Torvalds /* br_stp_timer.c */ 1004348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1005348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1006348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 10071da177e4SLinus Torvalds 10081da177e4SLinus Torvalds /* br.c */ 1009e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1010da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1011da678292SMichał Mirosław #endif 10121da177e4SLinus Torvalds 101311dc1f36SStephen Hemminger /* br_netlink.c */ 1014149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1015348662a1SJoe Perches int br_netlink_init(void); 1016348662a1SJoe Perches void br_netlink_fini(void); 1017348662a1SJoe Perches void br_ifinfo_notify(int event, struct net_bridge_port *port); 1018add511b3SRoopa Prabhu int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1019add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1020348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 102146c264daSNicolas Dichtel u32 filter_mask, int nlflags); 102211dc1f36SStephen Hemminger 10231da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 10241da177e4SLinus Torvalds /* br_sysfs_if.c */ 102552cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1026348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1027348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 10281da177e4SLinus Torvalds 10291da177e4SLinus Torvalds /* br_sysfs_br.c */ 1030348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1031348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 10321da177e4SLinus Torvalds 10331da177e4SLinus Torvalds #else 10341da177e4SLinus Torvalds 10350cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 10360cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 10370cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 10380cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 10391da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 10401da177e4SLinus Torvalds 10411da177e4SLinus Torvalds #endif 1042