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 }; 78cc0fdd80SLinus Lüssing #endif 79cc0fdd80SLinus Lüssing 806dada9b1SNikolay Aleksandrov struct br_vlan_stats { 816dada9b1SNikolay Aleksandrov u64 rx_bytes; 826dada9b1SNikolay Aleksandrov u64 rx_packets; 836dada9b1SNikolay Aleksandrov u64 tx_bytes; 846dada9b1SNikolay Aleksandrov u64 tx_packets; 856dada9b1SNikolay Aleksandrov struct u64_stats_sync syncp; 866dada9b1SNikolay Aleksandrov }; 876dada9b1SNikolay Aleksandrov 882594e906SNikolay Aleksandrov /** 892594e906SNikolay Aleksandrov * struct net_bridge_vlan - per-vlan entry 902594e906SNikolay Aleksandrov * 912594e906SNikolay Aleksandrov * @vnode: rhashtable member 922594e906SNikolay Aleksandrov * @vid: VLAN id 932594e906SNikolay Aleksandrov * @flags: bridge vlan flags 946dada9b1SNikolay Aleksandrov * @stats: per-cpu VLAN statistics 952594e906SNikolay Aleksandrov * @br: if MASTER flag set, this points to a bridge struct 962594e906SNikolay Aleksandrov * @port: if MASTER flag unset, this points to a port struct 972594e906SNikolay Aleksandrov * @refcnt: if MASTER flag set, this is bumped for each port referencing it 982594e906SNikolay Aleksandrov * @brvlan: if MASTER flag unset, this points to the global per-VLAN context 992594e906SNikolay Aleksandrov * for this VLAN entry 1002594e906SNikolay Aleksandrov * @vlist: sorted list of VLAN entries 1012594e906SNikolay Aleksandrov * @rcu: used for entry destruction 1022594e906SNikolay Aleksandrov * 1032594e906SNikolay Aleksandrov * This structure is shared between the global per-VLAN entries contained in 1042594e906SNikolay Aleksandrov * the bridge rhashtable and the local per-port per-VLAN entries contained in 1052594e906SNikolay Aleksandrov * the port's rhashtable. The union entries should be interpreted depending on 1062594e906SNikolay Aleksandrov * the entry flags that are set. 1072594e906SNikolay Aleksandrov */ 1082594e906SNikolay Aleksandrov struct net_bridge_vlan { 1092594e906SNikolay Aleksandrov struct rhash_head vnode; 1102594e906SNikolay Aleksandrov u16 vid; 1112594e906SNikolay Aleksandrov u16 flags; 1126dada9b1SNikolay Aleksandrov struct br_vlan_stats __percpu *stats; 113243a2e63SVlad Yasevich union { 114243a2e63SVlad Yasevich struct net_bridge *br; 1152594e906SNikolay Aleksandrov struct net_bridge_port *port; 1162594e906SNikolay Aleksandrov }; 1172594e906SNikolay Aleksandrov union { 1182594e906SNikolay Aleksandrov atomic_t refcnt; 1192594e906SNikolay Aleksandrov struct net_bridge_vlan *brvlan; 1202594e906SNikolay Aleksandrov }; 1212594e906SNikolay Aleksandrov struct list_head vlist; 1222594e906SNikolay Aleksandrov 123243a2e63SVlad Yasevich struct rcu_head rcu; 1242594e906SNikolay Aleksandrov }; 1252594e906SNikolay Aleksandrov 1262594e906SNikolay Aleksandrov /** 1272594e906SNikolay Aleksandrov * struct net_bridge_vlan_group 1282594e906SNikolay Aleksandrov * 1292594e906SNikolay Aleksandrov * @vlan_hash: VLAN entry rhashtable 1302594e906SNikolay Aleksandrov * @vlan_list: sorted VLAN entry list 1312594e906SNikolay Aleksandrov * @num_vlans: number of total VLAN entries 13277751ee8SNikolay Aleksandrov * @pvid: PVID VLAN id 1332594e906SNikolay Aleksandrov * 1342594e906SNikolay Aleksandrov * IMPORTANT: Be careful when checking if there're VLAN entries using list 1352594e906SNikolay Aleksandrov * primitives because the bridge can have entries in its list which 1362594e906SNikolay Aleksandrov * are just for global context but not for filtering, i.e. they have 1372594e906SNikolay Aleksandrov * the master flag set but not the brentry flag. If you have to check 1382594e906SNikolay Aleksandrov * if there're "real" entries in the bridge please test @num_vlans 1392594e906SNikolay Aleksandrov */ 1402594e906SNikolay Aleksandrov struct net_bridge_vlan_group { 1412594e906SNikolay Aleksandrov struct rhashtable vlan_hash; 1422594e906SNikolay Aleksandrov struct list_head vlan_list; 1436cbdceebSVlad Yasevich u16 num_vlans; 14477751ee8SNikolay Aleksandrov u16 pvid; 145243a2e63SVlad Yasevich }; 146243a2e63SVlad Yasevich 1471da177e4SLinus Torvalds struct net_bridge_fdb_entry 1481da177e4SLinus Torvalds { 1491da177e4SLinus Torvalds struct hlist_node hlist; 1501da177e4SLinus Torvalds struct net_bridge_port *dst; 1511da177e4SLinus Torvalds 1527cd8861aSstephen hemminger unsigned long updated; 1537cd8861aSstephen hemminger unsigned long used; 1541da177e4SLinus Torvalds mac_addr addr; 155b22fbf22SNikolay Aleksandrov __u16 vlan_id; 15693859b13SJiri Pirko unsigned char is_local:1, 15793859b13SJiri Pirko is_static:1, 158cf6b8e1eSScott Feldman added_by_user:1, 159cf6b8e1eSScott Feldman added_by_external_learn:1; 160b22fbf22SNikolay Aleksandrov struct rcu_head rcu; 1611da177e4SLinus Torvalds }; 1621da177e4SLinus Torvalds 1639d06b6d8SElad Raz #define MDB_PG_FLAGS_PERMANENT BIT(0) 1649d06b6d8SElad Raz #define MDB_PG_FLAGS_OFFLOAD BIT(1) 1659d06b6d8SElad Raz 166eb1d1641SHerbert Xu struct net_bridge_port_group { 167eb1d1641SHerbert Xu struct net_bridge_port *port; 168e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 169eb1d1641SHerbert Xu struct hlist_node mglist; 170eb1d1641SHerbert Xu struct rcu_head rcu; 171eb1d1641SHerbert Xu struct timer_list timer; 1728ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 1739d06b6d8SElad Raz unsigned char flags; 174eb1d1641SHerbert Xu }; 175eb1d1641SHerbert Xu 176eb1d1641SHerbert Xu struct net_bridge_mdb_entry 177eb1d1641SHerbert Xu { 178eb1d1641SHerbert Xu struct hlist_node hlist[2]; 179eb1d1641SHerbert Xu struct net_bridge *br; 180e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 181eb1d1641SHerbert Xu struct rcu_head rcu; 182eb1d1641SHerbert Xu struct timer_list timer; 1838ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 1848a870178SHerbert Xu bool mglist; 185eb1d1641SHerbert Xu }; 186eb1d1641SHerbert Xu 187eb1d1641SHerbert Xu struct net_bridge_mdb_htable 188eb1d1641SHerbert Xu { 189eb1d1641SHerbert Xu struct hlist_head *mhash; 190eb1d1641SHerbert Xu struct rcu_head rcu; 191eb1d1641SHerbert Xu struct net_bridge_mdb_htable *old; 192eb1d1641SHerbert Xu u32 size; 193eb1d1641SHerbert Xu u32 max; 194eb1d1641SHerbert Xu u32 secret; 195eb1d1641SHerbert Xu u32 ver; 196eb1d1641SHerbert Xu }; 197eb1d1641SHerbert Xu 1981da177e4SLinus Torvalds struct net_bridge_port 1991da177e4SLinus Torvalds { 2001da177e4SLinus Torvalds struct net_bridge *br; 2011da177e4SLinus Torvalds struct net_device *dev; 2021da177e4SLinus Torvalds struct list_head list; 2031da177e4SLinus Torvalds 2041da177e4SLinus Torvalds /* STP */ 2051da177e4SLinus Torvalds u8 priority; 2061da177e4SLinus Torvalds u8 state; 2071da177e4SLinus Torvalds u16 port_no; 2081da177e4SLinus Torvalds unsigned char topology_change_ack; 2091da177e4SLinus Torvalds unsigned char config_pending; 2101da177e4SLinus Torvalds port_id port_id; 2111da177e4SLinus Torvalds port_id designated_port; 2121da177e4SLinus Torvalds bridge_id designated_root; 2131da177e4SLinus Torvalds bridge_id designated_bridge; 2141da177e4SLinus Torvalds u32 path_cost; 2151da177e4SLinus Torvalds u32 designated_cost; 2160c03150eSstephen hemminger unsigned long designated_age; 2171da177e4SLinus Torvalds 2181da177e4SLinus Torvalds struct timer_list forward_delay_timer; 2191da177e4SLinus Torvalds struct timer_list hold_timer; 2201da177e4SLinus Torvalds struct timer_list message_age_timer; 2211da177e4SLinus Torvalds struct kobject kobj; 2221da177e4SLinus Torvalds struct rcu_head rcu; 2233982d3d2SFischer, Anna 2243982d3d2SFischer, Anna unsigned long flags; 225eb1d1641SHerbert Xu 226eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 22790010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 228cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 22990010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 230cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 231eb1d1641SHerbert Xu unsigned char multicast_router; 232eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 233eb1d1641SHerbert Xu struct hlist_head mglist; 234eb1d1641SHerbert Xu struct hlist_node rlist; 235eb1d1641SHerbert Xu #endif 236e0f43752SSimon Arlott 237e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 238e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 239e0f43752SSimon Arlott #endif 24091d2c34aSHerbert Xu 24191d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 24291d2c34aSHerbert Xu struct netpoll *np; 24391d2c34aSHerbert Xu #endif 244243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 245907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 246243a2e63SVlad Yasevich #endif 2471da177e4SLinus Torvalds }; 2481da177e4SLinus Torvalds 249e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 250f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 251e028e4b8SVlad Yasevich 252f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 253f350a0a8SJiri Pirko 254b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 255b5ed54e9Sstephen hemminger { 256716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 257b5ed54e9Sstephen hemminger } 258b5ed54e9Sstephen hemminger 2591fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 260b5ed54e9Sstephen hemminger { 261ec1e5610SEric Dumazet return br_port_exists(dev) ? 262ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 263b5ed54e9Sstephen hemminger } 264b5ed54e9Sstephen hemminger 2651da177e4SLinus Torvalds struct net_bridge 2661da177e4SLinus Torvalds { 2671da177e4SLinus Torvalds spinlock_t lock; 2681da177e4SLinus Torvalds struct list_head port_list; 2691da177e4SLinus Torvalds struct net_device *dev; 27014bb4789Sstephen hemminger 2718f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 2721da177e4SLinus Torvalds spinlock_t hash_lock; 2731da177e4SLinus Torvalds struct hlist_head hash[BR_HASH_SIZE]; 27434666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 275efb6de9bSBernhard Thaler union { 2764adf0af6SSimon Wunderlich struct rtable fake_rtable; 277efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 278efb6de9bSBernhard Thaler }; 2794df53d8bSPatrick McHardy bool nf_call_iptables; 2804df53d8bSPatrick McHardy bool nf_call_ip6tables; 2814df53d8bSPatrick McHardy bool nf_call_arptables; 2824adf0af6SSimon Wunderlich #endif 283515853ccSstephen hemminger u16 group_fwd_mask; 284f2808d22SToshiaki Makita u16 group_fwd_mask_required; 285515853ccSstephen hemminger 2861da177e4SLinus Torvalds /* STP */ 2871da177e4SLinus Torvalds bridge_id designated_root; 2881da177e4SLinus Torvalds bridge_id bridge_id; 2891da177e4SLinus Torvalds u32 root_path_cost; 2901da177e4SLinus Torvalds unsigned long max_age; 2911da177e4SLinus Torvalds unsigned long hello_time; 2921da177e4SLinus Torvalds unsigned long forward_delay; 2931da177e4SLinus Torvalds unsigned long bridge_max_age; 2941da177e4SLinus Torvalds unsigned long ageing_time; 2951da177e4SLinus Torvalds unsigned long bridge_hello_time; 2961da177e4SLinus Torvalds unsigned long bridge_forward_delay; 2971da177e4SLinus Torvalds 298fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 299204177f3SToshiaki Makita bool group_addr_set; 3001da177e4SLinus Torvalds u16 root_port; 3019cde0708SStephen Hemminger 3029cde0708SStephen Hemminger enum { 3039cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 3049cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 3059cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 3069cde0708SStephen Hemminger } stp_enabled; 3079cde0708SStephen Hemminger 3081da177e4SLinus Torvalds unsigned char topology_change; 3091da177e4SLinus Torvalds unsigned char topology_change_detected; 3101da177e4SLinus Torvalds 311eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 312eb1d1641SHerbert Xu unsigned char multicast_router; 313eb1d1641SHerbert Xu 314eb1d1641SHerbert Xu u8 multicast_disabled:1; 315c5c23260SHerbert Xu u8 multicast_querier:1; 3161c8ad5bfSCong Wang u8 multicast_query_use_ifaddr:1; 3170888d5f3Sdaniel u8 has_ipv6_addr:1; 318eb1d1641SHerbert Xu 319eb1d1641SHerbert Xu u32 hash_elasticity; 320eb1d1641SHerbert Xu u32 hash_max; 321eb1d1641SHerbert Xu 322eb1d1641SHerbert Xu u32 multicast_last_member_count; 323eb1d1641SHerbert Xu u32 multicast_startup_query_count; 324eb1d1641SHerbert Xu 325eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 326eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 327eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 328eb1d1641SHerbert Xu unsigned long multicast_query_interval; 329eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 330eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 331eb1d1641SHerbert Xu 332eb1d1641SHerbert Xu spinlock_t multicast_lock; 333e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 334eb1d1641SHerbert Xu struct hlist_head router_list; 335eb1d1641SHerbert Xu 336eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 33790010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 33890010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 339dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 340cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 34190010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 34290010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 343dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 344cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 345eb1d1641SHerbert Xu #endif 346eb1d1641SHerbert Xu 3471da177e4SLinus Torvalds struct timer_list hello_timer; 3481da177e4SLinus Torvalds struct timer_list tcn_timer; 3491da177e4SLinus Torvalds struct timer_list topology_change_timer; 3501da177e4SLinus Torvalds struct timer_list gc_timer; 35143b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 352e028e4b8SVlad Yasevich u32 auto_cnt; 353243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 354907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 355243a2e63SVlad Yasevich u8 vlan_enabled; 3566dada9b1SNikolay Aleksandrov u8 vlan_stats_enabled; 3578580e211SToshiaki Makita __be16 vlan_proto; 35896a20d9dSVlad Yasevich u16 default_pvid; 359243a2e63SVlad Yasevich #endif 3601da177e4SLinus Torvalds }; 3611da177e4SLinus Torvalds 36268b7c895SHerbert Xu struct br_input_skb_cb { 36368b7c895SHerbert Xu struct net_device *brdev; 36493fdd47eSHerbert Xu 36532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 366eb1d1641SHerbert Xu int igmp; 367eb1d1641SHerbert Xu int mrouters_only; 36832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 36993fdd47eSHerbert Xu 370842a9ae0SJouni Malinen bool proxyarp_replied; 37193fdd47eSHerbert Xu 37220adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 37320adfa1aSVlad Yasevich bool vlan_filtered; 37420adfa1aSVlad Yasevich #endif 37568b7c895SHerbert Xu }; 37668b7c895SHerbert Xu 37768b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 37868b7c895SHerbert Xu 37932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 38032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 38132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 38232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 38332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 38432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 38528a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 38628a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 38728a16c97Sstephen hemminger 38828a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 38928a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 39028a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 39128a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 39228a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 39328a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 39428a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 39528a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 39628a16c97Sstephen hemminger 39728a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 39828a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 39928a16c97Sstephen hemminger 4001da177e4SLinus Torvalds /* called under bridge lock */ 4011da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 4021da177e4SLinus Torvalds { 4031da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 4041da177e4SLinus Torvalds } 4051da177e4SLinus Torvalds 4062594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 4072594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 4082594e906SNikolay Aleksandrov { 4092594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 4102594e906SNikolay Aleksandrov } 4112594e906SNikolay Aleksandrov 4122594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 4132594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 4142594e906SNikolay Aleksandrov { 4152594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 4162594e906SNikolay Aleksandrov } 4172594e906SNikolay Aleksandrov 4186be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 4192594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 4202594e906SNikolay Aleksandrov { 4212594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 4222594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 4232594e906SNikolay Aleksandrov return true; 4242594e906SNikolay Aleksandrov else 4252594e906SNikolay Aleksandrov return false; 4262594e906SNikolay Aleksandrov } 4272594e906SNikolay Aleksandrov 4282594e906SNikolay Aleksandrov return true; 4292594e906SNikolay Aleksandrov } 4302594e906SNikolay Aleksandrov 4311da177e4SLinus Torvalds /* br_device.c */ 432348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 433348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 434348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 435cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 43691d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 43791d2c34aSHerbert Xu struct sk_buff *skb) 43891d2c34aSHerbert Xu { 43991d2c34aSHerbert Xu struct netpoll *np = p->np; 44091d2c34aSHerbert Xu 44191d2c34aSHerbert Xu if (np) 44291d2c34aSHerbert Xu netpoll_send_skb(np, skb); 44391d2c34aSHerbert Xu } 44491d2c34aSHerbert Xu 445a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 446348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 44791d2c34aSHerbert Xu #else 4489f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 44991d2c34aSHerbert Xu struct sk_buff *skb) 45091d2c34aSHerbert Xu { 45191d2c34aSHerbert Xu } 45291d2c34aSHerbert Xu 453a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 45491d2c34aSHerbert Xu { 45591d2c34aSHerbert Xu return 0; 45691d2c34aSHerbert Xu } 45791d2c34aSHerbert Xu 45891d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 45991d2c34aSHerbert Xu { 46091d2c34aSHerbert Xu } 461cfb478daSstephen hemminger #endif 4621da177e4SLinus Torvalds 4631da177e4SLinus Torvalds /* br_fdb.c */ 464348662a1SJoe Perches int br_fdb_init(void); 465348662a1SJoe Perches void br_fdb_fini(void); 466348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 467424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 468424bb9c9SToshiaki Makita const struct net_bridge_port *p, 469424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 470348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 471348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 472348662a1SJoe Perches void br_fdb_cleanup(unsigned long arg); 473348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 4741ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 475348662a1SJoe Perches struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, 476348662a1SJoe Perches const unsigned char *addr, __u16 vid); 477348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 478348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 479348662a1SJoe Perches unsigned long off); 480348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 481348662a1SJoe Perches const unsigned char *addr, u16 vid); 482348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 483a5642ab4SToshiaki Makita const unsigned char *addr, u16 vid, bool added_by_user); 48477162022SJohn Fastabend 485348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 486f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 487348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 488f6f6424bSJiri Pirko const unsigned char *addr, u16 vid, u16 nlh_flags); 489348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 4905d5eacb3SJamal Hadi Salim struct net_device *dev, struct net_device *fdev, int idx); 4918db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 4928db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 4933aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 4943aeb6617SJiri Pirko const unsigned char *addr, u16 vid); 4953aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 4963aeb6617SJiri Pirko const unsigned char *addr, u16 vid); 4971da177e4SLinus Torvalds 4981da177e4SLinus Torvalds /* br_forward.c */ 499348662a1SJoe Perches void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb); 5000c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 501348662a1SJoe Perches void br_forward(const struct net_bridge_port *to, 5027f7708f0SMichael Braun struct sk_buff *skb, struct sk_buff *skb0); 5030c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 504348662a1SJoe Perches void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast); 505348662a1SJoe Perches void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, 506867a5943SVlad Yasevich struct sk_buff *skb2, bool unicast); 5071da177e4SLinus Torvalds 5081da177e4SLinus Torvalds /* br_if.c */ 509348662a1SJoe Perches void br_port_carrier_check(struct net_bridge_port *p); 510348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 511348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 512348662a1SJoe Perches int br_add_if(struct net_bridge *br, struct net_device *dev); 513348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 514348662a1SJoe Perches int br_min_mtu(const struct net_bridge *br); 515348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 516c8f44affSMichał Mirosław netdev_features_t features); 517e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 5182796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 5191da177e4SLinus Torvalds 5201da177e4SLinus Torvalds /* br_input.c */ 5210c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 522348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 5231da177e4SLinus Torvalds 524859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 525859828c0SJiri Pirko { 526859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 527859828c0SJiri Pirko } 528859828c0SJiri Pirko 529859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 530859828c0SJiri Pirko { 531859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 532859828c0SJiri Pirko } 533859828c0SJiri Pirko 5341da177e4SLinus Torvalds /* br_ioctl.c */ 535348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 536348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 537348662a1SJoe Perches void __user *arg); 5381da177e4SLinus Torvalds 539eb1d1641SHerbert Xu /* br_multicast.c */ 540eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 5412ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 542348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 543fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 544348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 545eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 546348662a1SJoe Perches void br_multicast_add_port(struct net_bridge_port *port); 547348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 548348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 549348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 550348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 551348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 552348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 553e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 554348662a1SJoe Perches void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 5555cb5e947SHerbert Xu struct sk_buff *skb); 556348662a1SJoe Perches void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 5575cb5e947SHerbert Xu struct sk_buff *skb, struct sk_buff *skb2); 558348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 559348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 560348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 561348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 562348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 563348662a1SJoe Perches struct net_bridge_mdb_entry * 564348662a1SJoe Perches br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); 565348662a1SJoe Perches struct net_bridge_mdb_entry * 566348662a1SJoe Perches br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, 567348662a1SJoe Perches struct br_ip *group); 568348662a1SJoe Perches void br_multicast_free_pg(struct rcu_head *head); 569348662a1SJoe Perches struct net_bridge_port_group * 570348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 571762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 5729d06b6d8SElad Raz unsigned char flags); 573348662a1SJoe Perches void br_mdb_init(void); 574348662a1SJoe Perches void br_mdb_uninit(void); 57545ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 57645ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 577949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 578949f1e39SSatish Ashok int type); 57985b35269SSridhar Samudrala 580cfd56754SCong Wang #define mlock_dereference(X, br) \ 581cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 582cfd56754SCong Wang 58385b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 58485b35269SSridhar Samudrala { 58585b35269SSridhar Samudrala return br->multicast_router == 2 || 58685b35269SSridhar Samudrala (br->multicast_router == 1 && 58785b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 58885b35269SSridhar Samudrala } 589b00589afSLinus Lüssing 590cc0fdd80SLinus Lüssing static inline bool 591cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 5920888d5f3Sdaniel struct bridge_mcast_other_query *querier, 5930888d5f3Sdaniel const bool is_ipv6) 594b00589afSLinus Lüssing { 5950888d5f3Sdaniel bool own_querier_enabled; 5960888d5f3Sdaniel 5970888d5f3Sdaniel if (br->multicast_querier) { 5980888d5f3Sdaniel if (is_ipv6 && !br->has_ipv6_addr) 5990888d5f3Sdaniel own_querier_enabled = false; 6000888d5f3Sdaniel else 6010888d5f3Sdaniel own_querier_enabled = true; 6020888d5f3Sdaniel } else { 6030888d5f3Sdaniel own_querier_enabled = false; 6040888d5f3Sdaniel } 6050888d5f3Sdaniel 606cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 6070888d5f3Sdaniel (own_querier_enabled || timer_pending(&querier->timer)); 608cc0fdd80SLinus Lüssing } 609cc0fdd80SLinus Lüssing 610cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 611cc0fdd80SLinus Lüssing struct ethhdr *eth) 612cc0fdd80SLinus Lüssing { 613cc0fdd80SLinus Lüssing switch (eth->h_proto) { 614cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 6150888d5f3Sdaniel return __br_multicast_querier_exists(br, 6160888d5f3Sdaniel &br->ip4_other_query, false); 617cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 618cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 6190888d5f3Sdaniel return __br_multicast_querier_exists(br, 6200888d5f3Sdaniel &br->ip6_other_query, true); 621cc0fdd80SLinus Lüssing #endif 622cc0fdd80SLinus Lüssing default: 623cc0fdd80SLinus Lüssing return false; 624cc0fdd80SLinus Lüssing } 625b00589afSLinus Lüssing } 626eb1d1641SHerbert Xu #else 627eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 628eb1d1641SHerbert Xu struct net_bridge_port *port, 62906499098SVlad Yasevich struct sk_buff *skb, 63006499098SVlad Yasevich u16 vid) 631eb1d1641SHerbert Xu { 632eb1d1641SHerbert Xu return 0; 633eb1d1641SHerbert Xu } 634eb1d1641SHerbert Xu 635eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 636fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 637eb1d1641SHerbert Xu { 638eb1d1641SHerbert Xu return NULL; 639eb1d1641SHerbert Xu } 640eb1d1641SHerbert Xu 641eb1d1641SHerbert Xu static inline void br_multicast_add_port(struct net_bridge_port *port) 642eb1d1641SHerbert Xu { 643eb1d1641SHerbert Xu } 644eb1d1641SHerbert Xu 645eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 646eb1d1641SHerbert Xu { 647eb1d1641SHerbert Xu } 648eb1d1641SHerbert Xu 649eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 650eb1d1641SHerbert Xu { 651eb1d1641SHerbert Xu } 652eb1d1641SHerbert Xu 653eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 654eb1d1641SHerbert Xu { 655eb1d1641SHerbert Xu } 656eb1d1641SHerbert Xu 657eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 658eb1d1641SHerbert Xu { 659eb1d1641SHerbert Xu } 660eb1d1641SHerbert Xu 661eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 662eb1d1641SHerbert Xu { 663eb1d1641SHerbert Xu } 664eb1d1641SHerbert Xu 665eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 666eb1d1641SHerbert Xu { 667eb1d1641SHerbert Xu } 6685cb5e947SHerbert Xu 669a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 670a7ce45a7SNikolay Aleksandrov { 671a7ce45a7SNikolay Aleksandrov } 672a7ce45a7SNikolay Aleksandrov 6735cb5e947SHerbert Xu static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 6745cb5e947SHerbert Xu struct sk_buff *skb) 6755cb5e947SHerbert Xu { 6765cb5e947SHerbert Xu } 6775cb5e947SHerbert Xu 6785cb5e947SHerbert Xu static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 6795cb5e947SHerbert Xu struct sk_buff *skb, 6805cb5e947SHerbert Xu struct sk_buff *skb2) 6815cb5e947SHerbert Xu { 6825cb5e947SHerbert Xu } 683eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 684eb1d1641SHerbert Xu { 68585b35269SSridhar Samudrala return 0; 686eb1d1641SHerbert Xu } 687cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 688cc0fdd80SLinus Lüssing struct ethhdr *eth) 689b00589afSLinus Lüssing { 690b00589afSLinus Lüssing return false; 691b00589afSLinus Lüssing } 692fdb184d1SRami Rosen static inline void br_mdb_init(void) 693fdb184d1SRami Rosen { 694fdb184d1SRami Rosen } 695fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 696fdb184d1SRami Rosen { 697fdb184d1SRami Rosen } 69885b35269SSridhar Samudrala #endif 699eb1d1641SHerbert Xu 700243a2e63SVlad Yasevich /* br_vlan.c */ 701243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 70277751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 70377751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 7042594e906SNikolay Aleksandrov u16 *vid); 70577751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 70685f46c6bSVlad Yasevich const struct sk_buff *skb); 707e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 708348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 7092594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 71078851988SVlad Yasevich struct sk_buff *skb); 711348662a1SJoe Perches int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); 712348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 713348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 7142594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 715204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 716a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 717348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 718d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 719204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 7206dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 7215be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 72296a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 7230f963b75SNikolay Aleksandrov int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid); 724348662a1SJoe Perches int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); 725348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 726348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 7275be5a2dfSVlad Yasevich int nbp_vlan_init(struct net_bridge_port *port); 7282594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 729a60c0903SNikolay Aleksandrov void br_vlan_get_stats(const struct net_bridge_vlan *v, 730a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats); 731a37b85c9SVlad Yasevich 7322594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 733a37b85c9SVlad Yasevich const struct net_bridge *br) 734a37b85c9SVlad Yasevich { 735907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 736a37b85c9SVlad Yasevich } 737a37b85c9SVlad Yasevich 7382594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 739a37b85c9SVlad Yasevich const struct net_bridge_port *p) 740a37b85c9SVlad Yasevich { 741907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 742907b1e6eSNikolay Aleksandrov } 743907b1e6eSNikolay Aleksandrov 744907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 745907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 746907b1e6eSNikolay Aleksandrov { 747907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 748907b1e6eSNikolay Aleksandrov } 749907b1e6eSNikolay Aleksandrov 750907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 751907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 752907b1e6eSNikolay Aleksandrov { 753907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 754a37b85c9SVlad Yasevich } 755a37b85c9SVlad Yasevich 756a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 757a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 758a37b85c9SVlad Yasevich */ 759a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 760a37b85c9SVlad Yasevich { 761a37b85c9SVlad Yasevich int err = 0; 762a37b85c9SVlad Yasevich 7632594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 764df8a39deSJiri Pirko *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; 7652594e906SNikolay Aleksandrov } else { 766a37b85c9SVlad Yasevich *vid = 0; 767a37b85c9SVlad Yasevich err = -EINVAL; 768a37b85c9SVlad Yasevich } 769a37b85c9SVlad Yasevich 770a37b85c9SVlad Yasevich return err; 771a37b85c9SVlad Yasevich } 77278851988SVlad Yasevich 77377751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 77478851988SVlad Yasevich { 77577751ee8SNikolay Aleksandrov if (!vg) 7765be5a2dfSVlad Yasevich return 0; 7775be5a2dfSVlad Yasevich 77878851988SVlad Yasevich smp_rmb(); 77977751ee8SNikolay Aleksandrov return vg->pvid; 78078851988SVlad Yasevich } 78178851988SVlad Yasevich 7822796d0c6SVlad Yasevich static inline int br_vlan_enabled(struct net_bridge *br) 7832796d0c6SVlad Yasevich { 7842796d0c6SVlad Yasevich return br->vlan_enabled; 7852796d0c6SVlad Yasevich } 786243a2e63SVlad Yasevich #else 78777751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 78877751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 7892594e906SNikolay Aleksandrov struct sk_buff *skb, 7902594e906SNikolay Aleksandrov u16 *vid) 7912594e906SNikolay Aleksandrov { 7922594e906SNikolay Aleksandrov return true; 7932594e906SNikolay Aleksandrov } 7942594e906SNikolay Aleksandrov 7952594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 79685f46c6bSVlad Yasevich const struct sk_buff *skb) 79785f46c6bSVlad Yasevich { 79885f46c6bSVlad Yasevich return true; 79985f46c6bSVlad Yasevich } 80085f46c6bSVlad Yasevich 801e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 802e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 803e0d7968aSToshiaki Makita { 804e0d7968aSToshiaki Makita return true; 805e0d7968aSToshiaki Makita } 806e0d7968aSToshiaki Makita 80778851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 8082594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 80978851988SVlad Yasevich struct sk_buff *skb) 81078851988SVlad Yasevich { 81178851988SVlad Yasevich return skb; 81278851988SVlad Yasevich } 81378851988SVlad Yasevich 814552406c4SVlad Yasevich static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) 815243a2e63SVlad Yasevich { 816243a2e63SVlad Yasevich return -EOPNOTSUPP; 817243a2e63SVlad Yasevich } 818243a2e63SVlad Yasevich 819243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 820243a2e63SVlad Yasevich { 821243a2e63SVlad Yasevich return -EOPNOTSUPP; 822243a2e63SVlad Yasevich } 823243a2e63SVlad Yasevich 824243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 825243a2e63SVlad Yasevich { 826243a2e63SVlad Yasevich } 827243a2e63SVlad Yasevich 828204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 829204177f3SToshiaki Makita { 830204177f3SToshiaki Makita } 831204177f3SToshiaki Makita 8325be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 8338580e211SToshiaki Makita { 8345be5a2dfSVlad Yasevich return 0; 8358580e211SToshiaki Makita } 8368580e211SToshiaki Makita 837552406c4SVlad Yasevich static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) 838243a2e63SVlad Yasevich { 839243a2e63SVlad Yasevich return -EOPNOTSUPP; 840243a2e63SVlad Yasevich } 841243a2e63SVlad Yasevich 842243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 843243a2e63SVlad Yasevich { 844243a2e63SVlad Yasevich return -EOPNOTSUPP; 845243a2e63SVlad Yasevich } 846243a2e63SVlad Yasevich 847243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 848243a2e63SVlad Yasevich { 849243a2e63SVlad Yasevich } 850243a2e63SVlad Yasevich 8512594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 8522594e906SNikolay Aleksandrov u16 vid) 853a37b85c9SVlad Yasevich { 854a37b85c9SVlad Yasevich return NULL; 855a37b85c9SVlad Yasevich } 856bc9a25d2SVlad Yasevich 8575be5a2dfSVlad Yasevich static inline int nbp_vlan_init(struct net_bridge_port *port) 8585be5a2dfSVlad Yasevich { 8595be5a2dfSVlad Yasevich return 0; 8605be5a2dfSVlad Yasevich } 8615be5a2dfSVlad Yasevich 86278851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 863a37b85c9SVlad Yasevich { 864a37b85c9SVlad Yasevich return 0; 865a37b85c9SVlad Yasevich } 8662594e906SNikolay Aleksandrov 86777751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 86878851988SVlad Yasevich { 8693df6bf45SVlad Yasevich return 0; 87078851988SVlad Yasevich } 8712796d0c6SVlad Yasevich 872d4f0e095SAlexei Starovoitov static inline int br_vlan_enabled(struct net_bridge *br) 8732796d0c6SVlad Yasevich { 8742796d0c6SVlad Yasevich return 0; 8752796d0c6SVlad Yasevich } 876a7854037SNikolay Aleksandrov 877a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 878a7854037SNikolay Aleksandrov unsigned long val) 879a7854037SNikolay Aleksandrov { 880a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 881a7854037SNikolay Aleksandrov } 8822594e906SNikolay Aleksandrov 8832594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 8842594e906SNikolay Aleksandrov u32 filter_mask) 8852594e906SNikolay Aleksandrov { 8862594e906SNikolay Aleksandrov return 0; 8872594e906SNikolay Aleksandrov } 8882594e906SNikolay Aleksandrov 8892594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 8902594e906SNikolay Aleksandrov const struct net_bridge *br) 8912594e906SNikolay Aleksandrov { 8922594e906SNikolay Aleksandrov return NULL; 8932594e906SNikolay Aleksandrov } 8942594e906SNikolay Aleksandrov 8952594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 8962594e906SNikolay Aleksandrov const struct net_bridge_port *p) 8972594e906SNikolay Aleksandrov { 8982594e906SNikolay Aleksandrov return NULL; 8992594e906SNikolay Aleksandrov } 900907b1e6eSNikolay Aleksandrov 901907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 902907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 903907b1e6eSNikolay Aleksandrov { 904907b1e6eSNikolay Aleksandrov return NULL; 905907b1e6eSNikolay Aleksandrov } 906907b1e6eSNikolay Aleksandrov 907907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 908907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 909907b1e6eSNikolay Aleksandrov { 910907b1e6eSNikolay Aleksandrov return NULL; 911907b1e6eSNikolay Aleksandrov } 912a60c0903SNikolay Aleksandrov 913a60c0903SNikolay Aleksandrov static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, 914a60c0903SNikolay Aleksandrov struct br_vlan_stats *stats) 915a60c0903SNikolay Aleksandrov { 916a60c0903SNikolay Aleksandrov } 917243a2e63SVlad Yasevich #endif 918243a2e63SVlad Yasevich 9191a4ba64dSPablo Neira Ayuso struct nf_br_ops { 9201a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 9211a4ba64dSPablo Neira Ayuso }; 9221a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 9231a4ba64dSPablo Neira Ayuso 9241da177e4SLinus Torvalds /* br_netfilter.c */ 92534666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 92634666d46SPablo Neira Ayuso int br_nf_core_init(void); 92734666d46SPablo Neira Ayuso void br_nf_core_fini(void); 928348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 929c0909713SStephen Hemminger #else 93034666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 93134666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 9324adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 933c0909713SStephen Hemminger #endif 9341da177e4SLinus Torvalds 9351da177e4SLinus Torvalds /* br_stp.c */ 936775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 937348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 938348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 939348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 9401da177e4SLinus Torvalds 941348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 942348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 943348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 944348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 945c62987bbSScott Feldman int br_set_ageing_time(struct net_bridge *br, u32 ageing_time); 94614f98f25Sstephen hemminger 94714f98f25Sstephen hemminger 9481da177e4SLinus Torvalds /* br_stp_if.c */ 949348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 950348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 951348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 952348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 953348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 954348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 955348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 956348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 957348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 958348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 959348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 9601da177e4SLinus Torvalds 9611da177e4SLinus Torvalds /* br_stp_bpdu.c */ 9627c85fbf0SPatrick McHardy struct stp_proto; 963348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 9647c85fbf0SPatrick McHardy struct net_device *dev); 9651da177e4SLinus Torvalds 9661da177e4SLinus Torvalds /* br_stp_timer.c */ 967348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 968348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 969348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 9701da177e4SLinus Torvalds 9711da177e4SLinus Torvalds /* br.c */ 972e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 973da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 974da678292SMichał Mirosław #endif 9751da177e4SLinus Torvalds 97611dc1f36SStephen Hemminger /* br_netlink.c */ 977149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 978348662a1SJoe Perches int br_netlink_init(void); 979348662a1SJoe Perches void br_netlink_fini(void); 980348662a1SJoe Perches void br_ifinfo_notify(int event, struct net_bridge_port *port); 981add511b3SRoopa Prabhu int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 982add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 983348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 98446c264daSNicolas Dichtel u32 filter_mask, int nlflags); 98511dc1f36SStephen Hemminger 9861da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 9871da177e4SLinus Torvalds /* br_sysfs_if.c */ 98852cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 989348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 990348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 9911da177e4SLinus Torvalds 9921da177e4SLinus Torvalds /* br_sysfs_br.c */ 993348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 994348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 9951da177e4SLinus Torvalds 9961da177e4SLinus Torvalds #else 9971da177e4SLinus Torvalds 9980cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 9990cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 10000cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 10010cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 10021da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 10031da177e4SLinus Torvalds 10041da177e4SLinus Torvalds #endif 1005