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; 317eb1d1641SHerbert Xu 318eb1d1641SHerbert Xu u32 hash_elasticity; 319eb1d1641SHerbert Xu u32 hash_max; 320eb1d1641SHerbert Xu 321eb1d1641SHerbert Xu u32 multicast_last_member_count; 322eb1d1641SHerbert Xu u32 multicast_startup_query_count; 323eb1d1641SHerbert Xu 324eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 325eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 326eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 327eb1d1641SHerbert Xu unsigned long multicast_query_interval; 328eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 329eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 330eb1d1641SHerbert Xu 331eb1d1641SHerbert Xu spinlock_t multicast_lock; 332e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 333eb1d1641SHerbert Xu struct hlist_head router_list; 334eb1d1641SHerbert Xu 335eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 33690010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 33790010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 338dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 339cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 34090010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 34190010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 342dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 343cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 344eb1d1641SHerbert Xu #endif 345eb1d1641SHerbert Xu 3461da177e4SLinus Torvalds struct timer_list hello_timer; 3471da177e4SLinus Torvalds struct timer_list tcn_timer; 3481da177e4SLinus Torvalds struct timer_list topology_change_timer; 3491da177e4SLinus Torvalds struct timer_list gc_timer; 35043b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 351e028e4b8SVlad Yasevich u32 auto_cnt; 352243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 353907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 354243a2e63SVlad Yasevich u8 vlan_enabled; 3556dada9b1SNikolay Aleksandrov u8 vlan_stats_enabled; 3568580e211SToshiaki Makita __be16 vlan_proto; 35796a20d9dSVlad Yasevich u16 default_pvid; 358243a2e63SVlad Yasevich #endif 3591da177e4SLinus Torvalds }; 3601da177e4SLinus Torvalds 36168b7c895SHerbert Xu struct br_input_skb_cb { 36268b7c895SHerbert Xu struct net_device *brdev; 36393fdd47eSHerbert Xu 36432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 365eb1d1641SHerbert Xu int igmp; 366eb1d1641SHerbert Xu int mrouters_only; 36732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 36893fdd47eSHerbert Xu 369842a9ae0SJouni Malinen bool proxyarp_replied; 37093fdd47eSHerbert Xu 37120adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 37220adfa1aSVlad Yasevich bool vlan_filtered; 37320adfa1aSVlad Yasevich #endif 37468b7c895SHerbert Xu }; 37568b7c895SHerbert Xu 37668b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 37768b7c895SHerbert Xu 37832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 37932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 38032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 38132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 38232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 38332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 38428a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 38528a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 38628a16c97Sstephen hemminger 38728a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 38828a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 38928a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 39028a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 39128a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 39228a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 39328a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 39428a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 39528a16c97Sstephen hemminger 39628a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 39728a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 39828a16c97Sstephen hemminger 3991da177e4SLinus Torvalds /* called under bridge lock */ 4001da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 4011da177e4SLinus Torvalds { 4021da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 4031da177e4SLinus Torvalds } 4041da177e4SLinus Torvalds 4052594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 4062594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 4072594e906SNikolay Aleksandrov { 4082594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 4092594e906SNikolay Aleksandrov } 4102594e906SNikolay Aleksandrov 4112594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 4122594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 4132594e906SNikolay Aleksandrov { 4142594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 4152594e906SNikolay Aleksandrov } 4162594e906SNikolay Aleksandrov 4176be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 4182594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 4192594e906SNikolay Aleksandrov { 4202594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 4212594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 4222594e906SNikolay Aleksandrov return true; 4232594e906SNikolay Aleksandrov else 4242594e906SNikolay Aleksandrov return false; 4252594e906SNikolay Aleksandrov } 4262594e906SNikolay Aleksandrov 4272594e906SNikolay Aleksandrov return true; 4282594e906SNikolay Aleksandrov } 4292594e906SNikolay Aleksandrov 4301da177e4SLinus Torvalds /* br_device.c */ 431348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 432348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 433348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 434cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 43591d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 43691d2c34aSHerbert Xu struct sk_buff *skb) 43791d2c34aSHerbert Xu { 43891d2c34aSHerbert Xu struct netpoll *np = p->np; 43991d2c34aSHerbert Xu 44091d2c34aSHerbert Xu if (np) 44191d2c34aSHerbert Xu netpoll_send_skb(np, skb); 44291d2c34aSHerbert Xu } 44391d2c34aSHerbert Xu 444a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 445348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 44691d2c34aSHerbert Xu #else 4479f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 44891d2c34aSHerbert Xu struct sk_buff *skb) 44991d2c34aSHerbert Xu { 45091d2c34aSHerbert Xu } 45191d2c34aSHerbert Xu 452a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 45391d2c34aSHerbert Xu { 45491d2c34aSHerbert Xu return 0; 45591d2c34aSHerbert Xu } 45691d2c34aSHerbert Xu 45791d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 45891d2c34aSHerbert Xu { 45991d2c34aSHerbert Xu } 460cfb478daSstephen hemminger #endif 4611da177e4SLinus Torvalds 4621da177e4SLinus Torvalds /* br_fdb.c */ 463348662a1SJoe Perches int br_fdb_init(void); 464348662a1SJoe Perches void br_fdb_fini(void); 465348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 466424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 467424bb9c9SToshiaki Makita const struct net_bridge_port *p, 468424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 469348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 470348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 471348662a1SJoe Perches void br_fdb_cleanup(unsigned long arg); 472348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 4731ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 474348662a1SJoe Perches struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, 475348662a1SJoe Perches const unsigned char *addr, __u16 vid); 476348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 477348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 478348662a1SJoe Perches unsigned long off); 479348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 480348662a1SJoe Perches const unsigned char *addr, u16 vid); 481348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 482a5642ab4SToshiaki Makita const unsigned char *addr, u16 vid, bool added_by_user); 48377162022SJohn Fastabend 484348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 485f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 486348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 487f6f6424bSJiri Pirko const unsigned char *addr, u16 vid, u16 nlh_flags); 488348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 4895d5eacb3SJamal Hadi Salim struct net_device *dev, struct net_device *fdev, int idx); 4908db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 4918db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 4923aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 4933aeb6617SJiri Pirko const unsigned char *addr, u16 vid); 4943aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 4953aeb6617SJiri Pirko const unsigned char *addr, u16 vid); 4961da177e4SLinus Torvalds 4971da177e4SLinus Torvalds /* br_forward.c */ 498348662a1SJoe Perches void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb); 4990c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 500348662a1SJoe Perches void br_forward(const struct net_bridge_port *to, 5017f7708f0SMichael Braun struct sk_buff *skb, struct sk_buff *skb0); 5020c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 503348662a1SJoe Perches void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast); 504348662a1SJoe Perches void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, 505867a5943SVlad Yasevich struct sk_buff *skb2, bool unicast); 5061da177e4SLinus Torvalds 5071da177e4SLinus Torvalds /* br_if.c */ 508348662a1SJoe Perches void br_port_carrier_check(struct net_bridge_port *p); 509348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 510348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 511348662a1SJoe Perches int br_add_if(struct net_bridge *br, struct net_device *dev); 512348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 513348662a1SJoe Perches int br_min_mtu(const struct net_bridge *br); 514348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 515c8f44affSMichał Mirosław netdev_features_t features); 516e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 5172796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 5181da177e4SLinus Torvalds 5191da177e4SLinus Torvalds /* br_input.c */ 5200c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 521348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 5221da177e4SLinus Torvalds 523859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 524859828c0SJiri Pirko { 525859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 526859828c0SJiri Pirko } 527859828c0SJiri Pirko 528859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 529859828c0SJiri Pirko { 530859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 531859828c0SJiri Pirko } 532859828c0SJiri Pirko 5331da177e4SLinus Torvalds /* br_ioctl.c */ 534348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 535348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 536348662a1SJoe Perches void __user *arg); 5371da177e4SLinus Torvalds 538eb1d1641SHerbert Xu /* br_multicast.c */ 539eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 5402ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 541348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 542fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 543348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 544eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 545348662a1SJoe Perches void br_multicast_add_port(struct net_bridge_port *port); 546348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 547348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 548348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 549348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 550348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 551348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 552e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 553348662a1SJoe Perches void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 5545cb5e947SHerbert Xu struct sk_buff *skb); 555348662a1SJoe Perches void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 5565cb5e947SHerbert Xu struct sk_buff *skb, struct sk_buff *skb2); 557348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 558348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 559348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 560348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 561348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 562348662a1SJoe Perches struct net_bridge_mdb_entry * 563348662a1SJoe Perches br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); 564348662a1SJoe Perches struct net_bridge_mdb_entry * 565348662a1SJoe Perches br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, 566348662a1SJoe Perches struct br_ip *group); 567348662a1SJoe Perches void br_multicast_free_pg(struct rcu_head *head); 568348662a1SJoe Perches struct net_bridge_port_group * 569348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 570762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 5719d06b6d8SElad Raz unsigned char flags); 572348662a1SJoe Perches void br_mdb_init(void); 573348662a1SJoe Perches void br_mdb_uninit(void); 57445ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 57545ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 576949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 577949f1e39SSatish Ashok int type); 57885b35269SSridhar Samudrala 579cfd56754SCong Wang #define mlock_dereference(X, br) \ 580cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 581cfd56754SCong Wang 58285b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 58385b35269SSridhar Samudrala { 58485b35269SSridhar Samudrala return br->multicast_router == 2 || 58585b35269SSridhar Samudrala (br->multicast_router == 1 && 58685b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 58785b35269SSridhar Samudrala } 588b00589afSLinus Lüssing 589cc0fdd80SLinus Lüssing static inline bool 590cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 59190010b36SLinus Lüssing struct bridge_mcast_other_query *querier) 592b00589afSLinus Lüssing { 593cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 594cc0fdd80SLinus Lüssing (br->multicast_querier || timer_pending(&querier->timer)); 595cc0fdd80SLinus Lüssing } 596cc0fdd80SLinus Lüssing 597cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 598cc0fdd80SLinus Lüssing struct ethhdr *eth) 599cc0fdd80SLinus Lüssing { 600cc0fdd80SLinus Lüssing switch (eth->h_proto) { 601cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 60290010b36SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip4_other_query); 603cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 604cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 60590010b36SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip6_other_query); 606cc0fdd80SLinus Lüssing #endif 607cc0fdd80SLinus Lüssing default: 608cc0fdd80SLinus Lüssing return false; 609cc0fdd80SLinus Lüssing } 610b00589afSLinus Lüssing } 611eb1d1641SHerbert Xu #else 612eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 613eb1d1641SHerbert Xu struct net_bridge_port *port, 61406499098SVlad Yasevich struct sk_buff *skb, 61506499098SVlad Yasevich u16 vid) 616eb1d1641SHerbert Xu { 617eb1d1641SHerbert Xu return 0; 618eb1d1641SHerbert Xu } 619eb1d1641SHerbert Xu 620eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 621fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 622eb1d1641SHerbert Xu { 623eb1d1641SHerbert Xu return NULL; 624eb1d1641SHerbert Xu } 625eb1d1641SHerbert Xu 626eb1d1641SHerbert Xu static inline void br_multicast_add_port(struct net_bridge_port *port) 627eb1d1641SHerbert Xu { 628eb1d1641SHerbert Xu } 629eb1d1641SHerbert Xu 630eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 631eb1d1641SHerbert Xu { 632eb1d1641SHerbert Xu } 633eb1d1641SHerbert Xu 634eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 635eb1d1641SHerbert Xu { 636eb1d1641SHerbert Xu } 637eb1d1641SHerbert Xu 638eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 639eb1d1641SHerbert Xu { 640eb1d1641SHerbert Xu } 641eb1d1641SHerbert Xu 642eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 643eb1d1641SHerbert Xu { 644eb1d1641SHerbert Xu } 645eb1d1641SHerbert Xu 646eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 647eb1d1641SHerbert Xu { 648eb1d1641SHerbert Xu } 649eb1d1641SHerbert Xu 650eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 651eb1d1641SHerbert Xu { 652eb1d1641SHerbert Xu } 6535cb5e947SHerbert Xu 654a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 655a7ce45a7SNikolay Aleksandrov { 656a7ce45a7SNikolay Aleksandrov } 657a7ce45a7SNikolay Aleksandrov 6585cb5e947SHerbert Xu static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 6595cb5e947SHerbert Xu struct sk_buff *skb) 6605cb5e947SHerbert Xu { 6615cb5e947SHerbert Xu } 6625cb5e947SHerbert Xu 6635cb5e947SHerbert Xu static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 6645cb5e947SHerbert Xu struct sk_buff *skb, 6655cb5e947SHerbert Xu struct sk_buff *skb2) 6665cb5e947SHerbert Xu { 6675cb5e947SHerbert Xu } 668eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 669eb1d1641SHerbert Xu { 67085b35269SSridhar Samudrala return 0; 671eb1d1641SHerbert Xu } 672cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 673cc0fdd80SLinus Lüssing struct ethhdr *eth) 674b00589afSLinus Lüssing { 675b00589afSLinus Lüssing return false; 676b00589afSLinus Lüssing } 677fdb184d1SRami Rosen static inline void br_mdb_init(void) 678fdb184d1SRami Rosen { 679fdb184d1SRami Rosen } 680fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 681fdb184d1SRami Rosen { 682fdb184d1SRami Rosen } 68385b35269SSridhar Samudrala #endif 684eb1d1641SHerbert Xu 685243a2e63SVlad Yasevich /* br_vlan.c */ 686243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 68777751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 68877751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 6892594e906SNikolay Aleksandrov u16 *vid); 69077751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 69185f46c6bSVlad Yasevich const struct sk_buff *skb); 692e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 693348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 6942594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 69578851988SVlad Yasevich struct sk_buff *skb); 696348662a1SJoe Perches int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); 697348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 698348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 6992594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 700204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 701a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 702348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 703d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 704204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 7056dada9b1SNikolay Aleksandrov int br_vlan_set_stats(struct net_bridge *br, unsigned long val); 7065be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 70796a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 7080f963b75SNikolay Aleksandrov int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid); 709348662a1SJoe Perches int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); 710348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 711348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 7125be5a2dfSVlad Yasevich int nbp_vlan_init(struct net_bridge_port *port); 7132594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 714a37b85c9SVlad Yasevich 7152594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 716a37b85c9SVlad Yasevich const struct net_bridge *br) 717a37b85c9SVlad Yasevich { 718907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 719a37b85c9SVlad Yasevich } 720a37b85c9SVlad Yasevich 7212594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 722a37b85c9SVlad Yasevich const struct net_bridge_port *p) 723a37b85c9SVlad Yasevich { 724907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 725907b1e6eSNikolay Aleksandrov } 726907b1e6eSNikolay Aleksandrov 727907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 728907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 729907b1e6eSNikolay Aleksandrov { 730907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 731907b1e6eSNikolay Aleksandrov } 732907b1e6eSNikolay Aleksandrov 733907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 734907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 735907b1e6eSNikolay Aleksandrov { 736907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 737a37b85c9SVlad Yasevich } 738a37b85c9SVlad Yasevich 739a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 740a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 741a37b85c9SVlad Yasevich */ 742a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 743a37b85c9SVlad Yasevich { 744a37b85c9SVlad Yasevich int err = 0; 745a37b85c9SVlad Yasevich 7462594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 747df8a39deSJiri Pirko *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; 7482594e906SNikolay Aleksandrov } else { 749a37b85c9SVlad Yasevich *vid = 0; 750a37b85c9SVlad Yasevich err = -EINVAL; 751a37b85c9SVlad Yasevich } 752a37b85c9SVlad Yasevich 753a37b85c9SVlad Yasevich return err; 754a37b85c9SVlad Yasevich } 75578851988SVlad Yasevich 75677751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 75778851988SVlad Yasevich { 75877751ee8SNikolay Aleksandrov if (!vg) 7595be5a2dfSVlad Yasevich return 0; 7605be5a2dfSVlad Yasevich 76178851988SVlad Yasevich smp_rmb(); 76277751ee8SNikolay Aleksandrov return vg->pvid; 76378851988SVlad Yasevich } 76478851988SVlad Yasevich 7652796d0c6SVlad Yasevich static inline int br_vlan_enabled(struct net_bridge *br) 7662796d0c6SVlad Yasevich { 7672796d0c6SVlad Yasevich return br->vlan_enabled; 7682796d0c6SVlad Yasevich } 769243a2e63SVlad Yasevich #else 77077751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 77177751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 7722594e906SNikolay Aleksandrov struct sk_buff *skb, 7732594e906SNikolay Aleksandrov u16 *vid) 7742594e906SNikolay Aleksandrov { 7752594e906SNikolay Aleksandrov return true; 7762594e906SNikolay Aleksandrov } 7772594e906SNikolay Aleksandrov 7782594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 77985f46c6bSVlad Yasevich const struct sk_buff *skb) 78085f46c6bSVlad Yasevich { 78185f46c6bSVlad Yasevich return true; 78285f46c6bSVlad Yasevich } 78385f46c6bSVlad Yasevich 784e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 785e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 786e0d7968aSToshiaki Makita { 787e0d7968aSToshiaki Makita return true; 788e0d7968aSToshiaki Makita } 789e0d7968aSToshiaki Makita 79078851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 7912594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 79278851988SVlad Yasevich struct sk_buff *skb) 79378851988SVlad Yasevich { 79478851988SVlad Yasevich return skb; 79578851988SVlad Yasevich } 79678851988SVlad Yasevich 797552406c4SVlad Yasevich static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) 798243a2e63SVlad Yasevich { 799243a2e63SVlad Yasevich return -EOPNOTSUPP; 800243a2e63SVlad Yasevich } 801243a2e63SVlad Yasevich 802243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 803243a2e63SVlad Yasevich { 804243a2e63SVlad Yasevich return -EOPNOTSUPP; 805243a2e63SVlad Yasevich } 806243a2e63SVlad Yasevich 807243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 808243a2e63SVlad Yasevich { 809243a2e63SVlad Yasevich } 810243a2e63SVlad Yasevich 811204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 812204177f3SToshiaki Makita { 813204177f3SToshiaki Makita } 814204177f3SToshiaki Makita 8155be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 8168580e211SToshiaki Makita { 8175be5a2dfSVlad Yasevich return 0; 8188580e211SToshiaki Makita } 8198580e211SToshiaki Makita 820552406c4SVlad Yasevich static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) 821243a2e63SVlad Yasevich { 822243a2e63SVlad Yasevich return -EOPNOTSUPP; 823243a2e63SVlad Yasevich } 824243a2e63SVlad Yasevich 825243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 826243a2e63SVlad Yasevich { 827243a2e63SVlad Yasevich return -EOPNOTSUPP; 828243a2e63SVlad Yasevich } 829243a2e63SVlad Yasevich 830243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 831243a2e63SVlad Yasevich { 832243a2e63SVlad Yasevich } 833243a2e63SVlad Yasevich 8342594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 8352594e906SNikolay Aleksandrov u16 vid) 836a37b85c9SVlad Yasevich { 837a37b85c9SVlad Yasevich return NULL; 838a37b85c9SVlad Yasevich } 839bc9a25d2SVlad Yasevich 8405be5a2dfSVlad Yasevich static inline int nbp_vlan_init(struct net_bridge_port *port) 8415be5a2dfSVlad Yasevich { 8425be5a2dfSVlad Yasevich return 0; 8435be5a2dfSVlad Yasevich } 8445be5a2dfSVlad Yasevich 84578851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 846a37b85c9SVlad Yasevich { 847a37b85c9SVlad Yasevich return 0; 848a37b85c9SVlad Yasevich } 8492594e906SNikolay Aleksandrov 85077751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 85178851988SVlad Yasevich { 8523df6bf45SVlad Yasevich return 0; 85378851988SVlad Yasevich } 8542796d0c6SVlad Yasevich 855d4f0e095SAlexei Starovoitov static inline int br_vlan_enabled(struct net_bridge *br) 8562796d0c6SVlad Yasevich { 8572796d0c6SVlad Yasevich return 0; 8582796d0c6SVlad Yasevich } 859a7854037SNikolay Aleksandrov 860a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 861a7854037SNikolay Aleksandrov unsigned long val) 862a7854037SNikolay Aleksandrov { 863a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 864a7854037SNikolay Aleksandrov } 8652594e906SNikolay Aleksandrov 8662594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 8672594e906SNikolay Aleksandrov u32 filter_mask) 8682594e906SNikolay Aleksandrov { 8692594e906SNikolay Aleksandrov return 0; 8702594e906SNikolay Aleksandrov } 8712594e906SNikolay Aleksandrov 8722594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 8732594e906SNikolay Aleksandrov const struct net_bridge *br) 8742594e906SNikolay Aleksandrov { 8752594e906SNikolay Aleksandrov return NULL; 8762594e906SNikolay Aleksandrov } 8772594e906SNikolay Aleksandrov 8782594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 8792594e906SNikolay Aleksandrov const struct net_bridge_port *p) 8802594e906SNikolay Aleksandrov { 8812594e906SNikolay Aleksandrov return NULL; 8822594e906SNikolay Aleksandrov } 883907b1e6eSNikolay Aleksandrov 884907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 885907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 886907b1e6eSNikolay Aleksandrov { 887907b1e6eSNikolay Aleksandrov return NULL; 888907b1e6eSNikolay Aleksandrov } 889907b1e6eSNikolay Aleksandrov 890907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 891907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 892907b1e6eSNikolay Aleksandrov { 893907b1e6eSNikolay Aleksandrov return NULL; 894907b1e6eSNikolay Aleksandrov } 895243a2e63SVlad Yasevich #endif 896243a2e63SVlad Yasevich 8971a4ba64dSPablo Neira Ayuso struct nf_br_ops { 8981a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 8991a4ba64dSPablo Neira Ayuso }; 9001a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 9011a4ba64dSPablo Neira Ayuso 9021da177e4SLinus Torvalds /* br_netfilter.c */ 90334666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 90434666d46SPablo Neira Ayuso int br_nf_core_init(void); 90534666d46SPablo Neira Ayuso void br_nf_core_fini(void); 906348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 907c0909713SStephen Hemminger #else 90834666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 90934666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 9104adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 911c0909713SStephen Hemminger #endif 9121da177e4SLinus Torvalds 9131da177e4SLinus Torvalds /* br_stp.c */ 914775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 915348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 916348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 917348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 9181da177e4SLinus Torvalds 919348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 920348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 921348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 922348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 923c62987bbSScott Feldman int br_set_ageing_time(struct net_bridge *br, u32 ageing_time); 92414f98f25Sstephen hemminger 92514f98f25Sstephen hemminger 9261da177e4SLinus Torvalds /* br_stp_if.c */ 927348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 928348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 929348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 930348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 931348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 932348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 933348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 934348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 935348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 936348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 937348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 9381da177e4SLinus Torvalds 9391da177e4SLinus Torvalds /* br_stp_bpdu.c */ 9407c85fbf0SPatrick McHardy struct stp_proto; 941348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 9427c85fbf0SPatrick McHardy struct net_device *dev); 9431da177e4SLinus Torvalds 9441da177e4SLinus Torvalds /* br_stp_timer.c */ 945348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 946348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 947348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 9481da177e4SLinus Torvalds 9491da177e4SLinus Torvalds /* br.c */ 950e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 951da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 952da678292SMichał Mirosław #endif 9531da177e4SLinus Torvalds 95411dc1f36SStephen Hemminger /* br_netlink.c */ 955149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 956348662a1SJoe Perches int br_netlink_init(void); 957348662a1SJoe Perches void br_netlink_fini(void); 958348662a1SJoe Perches void br_ifinfo_notify(int event, struct net_bridge_port *port); 959add511b3SRoopa Prabhu int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 960add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 961348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 96246c264daSNicolas Dichtel u32 filter_mask, int nlflags); 96311dc1f36SStephen Hemminger 9641da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 9651da177e4SLinus Torvalds /* br_sysfs_if.c */ 96652cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 967348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 968348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 9691da177e4SLinus Torvalds 9701da177e4SLinus Torvalds /* br_sysfs_br.c */ 971348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 972348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 9731da177e4SLinus Torvalds 9741da177e4SLinus Torvalds #else 9751da177e4SLinus Torvalds 9760cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 9770cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 9780cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 9790cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 9801da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 9811da177e4SLinus Torvalds 9821da177e4SLinus Torvalds #endif 983