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 */ 5080c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 509b35c5f63SNikolay Aleksandrov void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, 51037b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig); 5110c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 51237b090e6SNikolay Aleksandrov void br_flood(struct net_bridge *br, struct sk_buff *skb, 51337b090e6SNikolay Aleksandrov bool unicast, bool local_rcv, bool local_orig); 5141da177e4SLinus Torvalds 5151da177e4SLinus Torvalds /* br_if.c */ 516348662a1SJoe Perches void br_port_carrier_check(struct net_bridge_port *p); 517348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 518348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 519348662a1SJoe Perches int br_add_if(struct net_bridge *br, struct net_device *dev); 520348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 521348662a1SJoe Perches int br_min_mtu(const struct net_bridge *br); 522348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 523c8f44affSMichał Mirosław netdev_features_t features); 524e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 5252796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 5261da177e4SLinus Torvalds 5271da177e4SLinus Torvalds /* br_input.c */ 5280c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 529348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 5301da177e4SLinus Torvalds 531859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 532859828c0SJiri Pirko { 533859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 534859828c0SJiri Pirko } 535859828c0SJiri Pirko 536859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 537859828c0SJiri Pirko { 538859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 539859828c0SJiri Pirko } 540859828c0SJiri Pirko 5411da177e4SLinus Torvalds /* br_ioctl.c */ 542348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 543348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 544348662a1SJoe Perches void __user *arg); 5451da177e4SLinus Torvalds 546eb1d1641SHerbert Xu /* br_multicast.c */ 547eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 5482ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 549348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 550fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 551348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 552eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 5531080ab95SNikolay Aleksandrov int br_multicast_add_port(struct net_bridge_port *port); 554348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 555348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 556348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 557348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 558348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 559348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 560e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 56137b090e6SNikolay Aleksandrov void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 56237b090e6SNikolay Aleksandrov struct sk_buff *skb, bool local_rcv, bool local_orig); 563348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 564348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 565348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 566348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 567348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 568348662a1SJoe Perches struct net_bridge_mdb_entry * 569348662a1SJoe Perches br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); 570348662a1SJoe Perches struct net_bridge_mdb_entry * 571348662a1SJoe Perches br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, 572348662a1SJoe Perches struct br_ip *group); 573348662a1SJoe Perches void br_multicast_free_pg(struct rcu_head *head); 574348662a1SJoe Perches struct net_bridge_port_group * 575348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 576762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 5779d06b6d8SElad Raz unsigned char flags); 578348662a1SJoe Perches void br_mdb_init(void); 579348662a1SJoe Perches void br_mdb_uninit(void); 58045ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 58145ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 582949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 583949f1e39SSatish Ashok int type); 5841080ab95SNikolay Aleksandrov void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, 585a65056ecSNikolay Aleksandrov const struct sk_buff *skb, u8 type, u8 dir); 5861080ab95SNikolay Aleksandrov int br_multicast_init_stats(struct net_bridge *br); 5871080ab95SNikolay Aleksandrov void br_multicast_get_stats(const struct net_bridge *br, 5881080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 5891080ab95SNikolay Aleksandrov struct br_mcast_stats *dest); 59085b35269SSridhar Samudrala 591cfd56754SCong Wang #define mlock_dereference(X, br) \ 592cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 593cfd56754SCong Wang 59485b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 59585b35269SSridhar Samudrala { 59685b35269SSridhar Samudrala return br->multicast_router == 2 || 59785b35269SSridhar Samudrala (br->multicast_router == 1 && 59885b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 59985b35269SSridhar Samudrala } 600b00589afSLinus Lüssing 601cc0fdd80SLinus Lüssing static inline bool 602cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 6030888d5f3Sdaniel struct bridge_mcast_other_query *querier, 6040888d5f3Sdaniel const bool is_ipv6) 605b00589afSLinus Lüssing { 6060888d5f3Sdaniel bool own_querier_enabled; 6070888d5f3Sdaniel 6080888d5f3Sdaniel if (br->multicast_querier) { 6090888d5f3Sdaniel if (is_ipv6 && !br->has_ipv6_addr) 6100888d5f3Sdaniel own_querier_enabled = false; 6110888d5f3Sdaniel else 6120888d5f3Sdaniel own_querier_enabled = true; 6130888d5f3Sdaniel } else { 6140888d5f3Sdaniel own_querier_enabled = false; 6150888d5f3Sdaniel } 6160888d5f3Sdaniel 617cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 6180888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 619cc0fdd80SLinus Lüssing } 620cc0fdd80SLinus Lüssing 621cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 622cc0fdd80SLinus Lüssing struct ethhdr *eth) 623cc0fdd80SLinus Lüssing { 624cc0fdd80SLinus Lüssing switch (eth->h_proto) { 625cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 6260888d5f3Sdaniel return __br_multicast_querier_exists(br, 6270888d5f3Sdaniel &br->ip4_other_query, false); 628cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 629cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 6300888d5f3Sdaniel return __br_multicast_querier_exists(br, 6310888d5f3Sdaniel &br->ip6_other_query, true); 632cc0fdd80SLinus Lüssing #endif 633cc0fdd80SLinus Lüssing default: 634cc0fdd80SLinus Lüssing return false; 635cc0fdd80SLinus Lüssing } 636b00589afSLinus Lüssing } 6371080ab95SNikolay Aleksandrov 6381080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 6391080ab95SNikolay Aleksandrov { 6401080ab95SNikolay Aleksandrov return BR_INPUT_SKB_CB(skb)->igmp; 6411080ab95SNikolay Aleksandrov } 642eb1d1641SHerbert Xu #else 643eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 644eb1d1641SHerbert Xu struct net_bridge_port *port, 64506499098SVlad Yasevich struct sk_buff *skb, 64606499098SVlad Yasevich u16 vid) 647eb1d1641SHerbert Xu { 648eb1d1641SHerbert Xu return 0; 649eb1d1641SHerbert Xu } 650eb1d1641SHerbert Xu 651eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 652fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 653eb1d1641SHerbert Xu { 654eb1d1641SHerbert Xu return NULL; 655eb1d1641SHerbert Xu } 656eb1d1641SHerbert Xu 6571080ab95SNikolay Aleksandrov static inline int br_multicast_add_port(struct net_bridge_port *port) 658eb1d1641SHerbert Xu { 6591080ab95SNikolay Aleksandrov return 0; 660eb1d1641SHerbert Xu } 661eb1d1641SHerbert Xu 662eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 663eb1d1641SHerbert Xu { 664eb1d1641SHerbert Xu } 665eb1d1641SHerbert Xu 666eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 667eb1d1641SHerbert Xu { 668eb1d1641SHerbert Xu } 669eb1d1641SHerbert Xu 670eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 671eb1d1641SHerbert Xu { 672eb1d1641SHerbert Xu } 673eb1d1641SHerbert Xu 674eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 675eb1d1641SHerbert Xu { 676eb1d1641SHerbert Xu } 677eb1d1641SHerbert Xu 678eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 679eb1d1641SHerbert Xu { 680eb1d1641SHerbert Xu } 681eb1d1641SHerbert Xu 682eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 683eb1d1641SHerbert Xu { 684eb1d1641SHerbert Xu } 6855cb5e947SHerbert Xu 686a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 687a7ce45a7SNikolay Aleksandrov { 688a7ce45a7SNikolay Aleksandrov } 689a7ce45a7SNikolay Aleksandrov 69037b090e6SNikolay Aleksandrov static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, 69137b090e6SNikolay Aleksandrov struct sk_buff *skb, 69237b090e6SNikolay Aleksandrov bool local_rcv, bool local_orig) 6935cb5e947SHerbert Xu { 6945cb5e947SHerbert Xu } 6955cb5e947SHerbert Xu 696eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 697eb1d1641SHerbert Xu { 69885b35269SSridhar Samudrala return 0; 699eb1d1641SHerbert Xu } 70037b090e6SNikolay Aleksandrov 701cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 702cc0fdd80SLinus Lüssing struct ethhdr *eth) 703b00589afSLinus Lüssing { 704b00589afSLinus Lüssing return false; 705b00589afSLinus Lüssing } 70637b090e6SNikolay Aleksandrov 707fdb184d1SRami Rosen static inline void br_mdb_init(void) 708fdb184d1SRami Rosen { 709fdb184d1SRami Rosen } 71037b090e6SNikolay Aleksandrov 711fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 712fdb184d1SRami Rosen { 713fdb184d1SRami Rosen } 7141080ab95SNikolay Aleksandrov 7151080ab95SNikolay Aleksandrov static inline void br_multicast_count(struct net_bridge *br, 7161080ab95SNikolay Aleksandrov const struct net_bridge_port *p, 717a65056ecSNikolay Aleksandrov const struct sk_buff *skb, 718a65056ecSNikolay Aleksandrov u8 type, u8 dir) 7191080ab95SNikolay Aleksandrov { 7201080ab95SNikolay Aleksandrov } 7211080ab95SNikolay Aleksandrov 7221080ab95SNikolay Aleksandrov static inline int br_multicast_init_stats(struct net_bridge *br) 7231080ab95SNikolay Aleksandrov { 7241080ab95SNikolay Aleksandrov return 0; 7251080ab95SNikolay Aleksandrov } 7261080ab95SNikolay Aleksandrov 7271080ab95SNikolay Aleksandrov static inline int br_multicast_igmp_type(const struct sk_buff *skb) 7281080ab95SNikolay Aleksandrov { 7291080ab95SNikolay Aleksandrov return 0; 7301080ab95SNikolay Aleksandrov } 73185b35269SSridhar Samudrala #endif 732eb1d1641SHerbert Xu 733243a2e63SVlad Yasevich /* br_vlan.c */ 734243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 73577751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 73677751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 7372594e906SNikolay Aleksandrov u16 *vid); 73877751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 73985f46c6bSVlad Yasevich const struct sk_buff *skb); 740e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 741348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 7422594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 74378851988SVlad Yasevich struct sk_buff *skb); 744348662a1SJoe Perches int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); 745348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 746348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 7472594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 748204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 749a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 750348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 751d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 752204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 7536dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 7545be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 75596a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 7560f963b75SNikolay Aleksandrov int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid); 757348662a1SJoe Perches int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); 758348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 759348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 7605be5a2dfSVlad Yasevich int nbp_vlan_init(struct net_bridge_port *port); 7612594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 762a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 763a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 764a37b85c9SVlad Yasevich 7652594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 766a37b85c9SVlad Yasevich const struct net_bridge *br) 767a37b85c9SVlad Yasevich { 768907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 769a37b85c9SVlad Yasevich } 770a37b85c9SVlad Yasevich 7712594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 772a37b85c9SVlad Yasevich const struct net_bridge_port *p) 773a37b85c9SVlad Yasevich { 774907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 775907b1e6eSNikolay Aleksandrov } 776907b1e6eSNikolay Aleksandrov 777907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 778907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 779907b1e6eSNikolay Aleksandrov { 780907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 781907b1e6eSNikolay Aleksandrov } 782907b1e6eSNikolay Aleksandrov 783907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 784907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 785907b1e6eSNikolay Aleksandrov { 786907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 787a37b85c9SVlad Yasevich } 788a37b85c9SVlad Yasevich 789a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 790a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 791a37b85c9SVlad Yasevich */ 792a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 793a37b85c9SVlad Yasevich { 794a37b85c9SVlad Yasevich int err = 0; 795a37b85c9SVlad Yasevich 7962594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 797df8a39deSJiri Pirko *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; 7982594e906SNikolay Aleksandrov } else { 799a37b85c9SVlad Yasevich *vid = 0; 800a37b85c9SVlad Yasevich err = -EINVAL; 801a37b85c9SVlad Yasevich } 802a37b85c9SVlad Yasevich 803a37b85c9SVlad Yasevich return err; 804a37b85c9SVlad Yasevich } 80578851988SVlad Yasevich 80677751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 80778851988SVlad Yasevich { 80877751ee8SNikolay Aleksandrov if (!vg) 8095be5a2dfSVlad Yasevich return 0; 8105be5a2dfSVlad Yasevich 81178851988SVlad Yasevich smp_rmb(); 81277751ee8SNikolay Aleksandrov return vg->pvid; 81378851988SVlad Yasevich } 81478851988SVlad Yasevich 8152796d0c6SVlad Yasevich static inline int br_vlan_enabled(struct net_bridge *br) 8162796d0c6SVlad Yasevich { 8172796d0c6SVlad Yasevich return br->vlan_enabled; 8182796d0c6SVlad Yasevich } 819243a2e63SVlad Yasevich #else 82077751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 82177751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 8222594e906SNikolay Aleksandrov struct sk_buff *skb, 8232594e906SNikolay Aleksandrov u16 *vid) 8242594e906SNikolay Aleksandrov { 8252594e906SNikolay Aleksandrov return true; 8262594e906SNikolay Aleksandrov } 8272594e906SNikolay Aleksandrov 8282594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 82985f46c6bSVlad Yasevich const struct sk_buff *skb) 83085f46c6bSVlad Yasevich { 83185f46c6bSVlad Yasevich return true; 83285f46c6bSVlad Yasevich } 83385f46c6bSVlad Yasevich 834e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 835e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 836e0d7968aSToshiaki Makita { 837e0d7968aSToshiaki Makita return true; 838e0d7968aSToshiaki Makita } 839e0d7968aSToshiaki Makita 84078851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 8412594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 84278851988SVlad Yasevich struct sk_buff *skb) 84378851988SVlad Yasevich { 84478851988SVlad Yasevich return skb; 84578851988SVlad Yasevich } 84678851988SVlad Yasevich 847552406c4SVlad Yasevich static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) 848243a2e63SVlad Yasevich { 849243a2e63SVlad Yasevich return -EOPNOTSUPP; 850243a2e63SVlad Yasevich } 851243a2e63SVlad Yasevich 852243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 853243a2e63SVlad Yasevich { 854243a2e63SVlad Yasevich return -EOPNOTSUPP; 855243a2e63SVlad Yasevich } 856243a2e63SVlad Yasevich 857243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 858243a2e63SVlad Yasevich { 859243a2e63SVlad Yasevich } 860243a2e63SVlad Yasevich 861204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 862204177f3SToshiaki Makita { 863204177f3SToshiaki Makita } 864204177f3SToshiaki Makita 8655be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 8668580e211SToshiaki Makita { 8675be5a2dfSVlad Yasevich return 0; 8688580e211SToshiaki Makita } 8698580e211SToshiaki Makita 870552406c4SVlad Yasevich static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) 871243a2e63SVlad Yasevich { 872243a2e63SVlad Yasevich return -EOPNOTSUPP; 873243a2e63SVlad Yasevich } 874243a2e63SVlad Yasevich 875243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 876243a2e63SVlad Yasevich { 877243a2e63SVlad Yasevich return -EOPNOTSUPP; 878243a2e63SVlad Yasevich } 879243a2e63SVlad Yasevich 880243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 881243a2e63SVlad Yasevich { 882243a2e63SVlad Yasevich } 883243a2e63SVlad Yasevich 8842594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 8852594e906SNikolay Aleksandrov u16 vid) 886a37b85c9SVlad Yasevich { 887a37b85c9SVlad Yasevich return NULL; 888a37b85c9SVlad Yasevich } 889bc9a25d2SVlad Yasevich 8905be5a2dfSVlad Yasevich static inline int nbp_vlan_init(struct net_bridge_port *port) 8915be5a2dfSVlad Yasevich { 8925be5a2dfSVlad Yasevich return 0; 8935be5a2dfSVlad Yasevich } 8945be5a2dfSVlad Yasevich 89578851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 896a37b85c9SVlad Yasevich { 897a37b85c9SVlad Yasevich return 0; 898a37b85c9SVlad Yasevich } 8992594e906SNikolay Aleksandrov 90077751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 90178851988SVlad Yasevich { 9023df6bf45SVlad Yasevich return 0; 90378851988SVlad Yasevich } 9042796d0c6SVlad Yasevich 905d4f0e095SAlexei Starovoitov static inline int br_vlan_enabled(struct net_bridge *br) 9062796d0c6SVlad Yasevich { 9072796d0c6SVlad Yasevich return 0; 9082796d0c6SVlad Yasevich } 909a7854037SNikolay Aleksandrov 910a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 911a7854037SNikolay Aleksandrov unsigned long val) 912a7854037SNikolay Aleksandrov { 913a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 914a7854037SNikolay Aleksandrov } 9152594e906SNikolay Aleksandrov 9162594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 9172594e906SNikolay Aleksandrov u32 filter_mask) 9182594e906SNikolay Aleksandrov { 9192594e906SNikolay Aleksandrov return 0; 9202594e906SNikolay Aleksandrov } 9212594e906SNikolay Aleksandrov 9222594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 9232594e906SNikolay Aleksandrov const struct net_bridge *br) 9242594e906SNikolay Aleksandrov { 9252594e906SNikolay Aleksandrov return NULL; 9262594e906SNikolay Aleksandrov } 9272594e906SNikolay Aleksandrov 9282594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 9292594e906SNikolay Aleksandrov const struct net_bridge_port *p) 9302594e906SNikolay Aleksandrov { 9312594e906SNikolay Aleksandrov return NULL; 9322594e906SNikolay Aleksandrov } 933907b1e6eSNikolay Aleksandrov 934907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 935907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 936907b1e6eSNikolay Aleksandrov { 937907b1e6eSNikolay Aleksandrov return NULL; 938907b1e6eSNikolay Aleksandrov } 939907b1e6eSNikolay Aleksandrov 940907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 941907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 942907b1e6eSNikolay Aleksandrov { 943907b1e6eSNikolay Aleksandrov return NULL; 944907b1e6eSNikolay Aleksandrov } 945a60c0903SNikolay Aleksandrov 946a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 947a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 948a60c0903SNikolay Aleksandrov { 949a60c0903SNikolay Aleksandrov } 950243a2e63SVlad Yasevich #endif 951243a2e63SVlad Yasevich 9521a4ba64dSPablo Neira Ayuso struct nf_br_ops { 9531a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 9541a4ba64dSPablo Neira Ayuso }; 9551a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 9561a4ba64dSPablo Neira Ayuso 9571da177e4SLinus Torvalds /* br_netfilter.c */ 95834666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 95934666d46SPablo Neira Ayuso int br_nf_core_init(void); 96034666d46SPablo Neira Ayuso void br_nf_core_fini(void); 961348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 962c0909713SStephen Hemminger #else 96334666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 96434666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 9654adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 966c0909713SStephen Hemminger #endif 9671da177e4SLinus Torvalds 9681da177e4SLinus Torvalds /* br_stp.c */ 969775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 970348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 971348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 972348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 9731da177e4SLinus Torvalds 974348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 975348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 976348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 977348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 978c62987bbSScott Feldman int br_set_ageing_time(struct net_bridge *br, u32 ageing_time); 97914f98f25Sstephen hemminger 98014f98f25Sstephen hemminger 9811da177e4SLinus Torvalds /* br_stp_if.c */ 982348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 983348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 984348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 985348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 986348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 987348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 988348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 989348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 990348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 991348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 992348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 9931da177e4SLinus Torvalds 9941da177e4SLinus Torvalds /* br_stp_bpdu.c */ 9957c85fbf0SPatrick McHardy struct stp_proto; 996348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 9977c85fbf0SPatrick McHardy struct net_device *dev); 9981da177e4SLinus Torvalds 9991da177e4SLinus Torvalds /* br_stp_timer.c */ 1000348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 1001348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 1002348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 10031da177e4SLinus Torvalds 10041da177e4SLinus Torvalds /* br.c */ 1005e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 1006da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 1007da678292SMichał Mirosław #endif 10081da177e4SLinus Torvalds 100911dc1f36SStephen Hemminger /* br_netlink.c */ 1010149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 1011348662a1SJoe Perches int br_netlink_init(void); 1012348662a1SJoe Perches void br_netlink_fini(void); 1013348662a1SJoe Perches void br_ifinfo_notify(int event, struct net_bridge_port *port); 1014add511b3SRoopa Prabhu int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1015add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 1016348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 101746c264daSNicolas Dichtel u32 filter_mask, int nlflags); 101811dc1f36SStephen Hemminger 10191da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 10201da177e4SLinus Torvalds /* br_sysfs_if.c */ 102152cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 1022348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 1023348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 10241da177e4SLinus Torvalds 10251da177e4SLinus Torvalds /* br_sysfs_br.c */ 1026348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 1027348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 10281da177e4SLinus Torvalds 10291da177e4SLinus Torvalds #else 10301da177e4SLinus Torvalds 10310cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 10320cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 10330cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 10340cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 10351da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 10361da177e4SLinus Torvalds 10371da177e4SLinus Torvalds #endif 1038