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 802594e906SNikolay Aleksandrov /** 812594e906SNikolay Aleksandrov * struct net_bridge_vlan - per-vlan entry 822594e906SNikolay Aleksandrov * 832594e906SNikolay Aleksandrov * @vnode: rhashtable member 842594e906SNikolay Aleksandrov * @vid: VLAN id 852594e906SNikolay Aleksandrov * @flags: bridge vlan flags 862594e906SNikolay Aleksandrov * @br: if MASTER flag set, this points to a bridge struct 872594e906SNikolay Aleksandrov * @port: if MASTER flag unset, this points to a port struct 882594e906SNikolay Aleksandrov * @refcnt: if MASTER flag set, this is bumped for each port referencing it 892594e906SNikolay Aleksandrov * @brvlan: if MASTER flag unset, this points to the global per-VLAN context 902594e906SNikolay Aleksandrov * for this VLAN entry 912594e906SNikolay Aleksandrov * @vlist: sorted list of VLAN entries 922594e906SNikolay Aleksandrov * @rcu: used for entry destruction 932594e906SNikolay Aleksandrov * 942594e906SNikolay Aleksandrov * This structure is shared between the global per-VLAN entries contained in 952594e906SNikolay Aleksandrov * the bridge rhashtable and the local per-port per-VLAN entries contained in 962594e906SNikolay Aleksandrov * the port's rhashtable. The union entries should be interpreted depending on 972594e906SNikolay Aleksandrov * the entry flags that are set. 982594e906SNikolay Aleksandrov */ 992594e906SNikolay Aleksandrov struct net_bridge_vlan { 1002594e906SNikolay Aleksandrov struct rhash_head vnode; 1012594e906SNikolay Aleksandrov u16 vid; 1022594e906SNikolay Aleksandrov u16 flags; 103243a2e63SVlad Yasevich union { 104243a2e63SVlad Yasevich struct net_bridge *br; 1052594e906SNikolay Aleksandrov struct net_bridge_port *port; 1062594e906SNikolay Aleksandrov }; 1072594e906SNikolay Aleksandrov union { 1082594e906SNikolay Aleksandrov atomic_t refcnt; 1092594e906SNikolay Aleksandrov struct net_bridge_vlan *brvlan; 1102594e906SNikolay Aleksandrov }; 1112594e906SNikolay Aleksandrov struct list_head vlist; 1122594e906SNikolay Aleksandrov 113243a2e63SVlad Yasevich struct rcu_head rcu; 1142594e906SNikolay Aleksandrov }; 1152594e906SNikolay Aleksandrov 1162594e906SNikolay Aleksandrov /** 1172594e906SNikolay Aleksandrov * struct net_bridge_vlan_group 1182594e906SNikolay Aleksandrov * 1192594e906SNikolay Aleksandrov * @vlan_hash: VLAN entry rhashtable 1202594e906SNikolay Aleksandrov * @vlan_list: sorted VLAN entry list 1212594e906SNikolay Aleksandrov * @num_vlans: number of total VLAN entries 12277751ee8SNikolay Aleksandrov * @pvid: PVID VLAN id 1232594e906SNikolay Aleksandrov * 1242594e906SNikolay Aleksandrov * IMPORTANT: Be careful when checking if there're VLAN entries using list 1252594e906SNikolay Aleksandrov * primitives because the bridge can have entries in its list which 1262594e906SNikolay Aleksandrov * are just for global context but not for filtering, i.e. they have 1272594e906SNikolay Aleksandrov * the master flag set but not the brentry flag. If you have to check 1282594e906SNikolay Aleksandrov * if there're "real" entries in the bridge please test @num_vlans 1292594e906SNikolay Aleksandrov */ 1302594e906SNikolay Aleksandrov struct net_bridge_vlan_group { 1312594e906SNikolay Aleksandrov struct rhashtable vlan_hash; 1322594e906SNikolay Aleksandrov struct list_head vlan_list; 1336cbdceebSVlad Yasevich u16 num_vlans; 13477751ee8SNikolay Aleksandrov u16 pvid; 135243a2e63SVlad Yasevich }; 136243a2e63SVlad Yasevich 1371da177e4SLinus Torvalds struct net_bridge_fdb_entry 1381da177e4SLinus Torvalds { 1391da177e4SLinus Torvalds struct hlist_node hlist; 1401da177e4SLinus Torvalds struct net_bridge_port *dst; 1411da177e4SLinus Torvalds 1427cd8861aSstephen hemminger unsigned long updated; 1437cd8861aSstephen hemminger unsigned long used; 1441da177e4SLinus Torvalds mac_addr addr; 145b22fbf22SNikolay Aleksandrov __u16 vlan_id; 14693859b13SJiri Pirko unsigned char is_local:1, 14793859b13SJiri Pirko is_static:1, 148cf6b8e1eSScott Feldman added_by_user:1, 149cf6b8e1eSScott Feldman added_by_external_learn:1; 150b22fbf22SNikolay Aleksandrov struct rcu_head rcu; 1511da177e4SLinus Torvalds }; 1521da177e4SLinus Torvalds 1539d06b6d8SElad Raz #define MDB_PG_FLAGS_PERMANENT BIT(0) 1549d06b6d8SElad Raz #define MDB_PG_FLAGS_OFFLOAD BIT(1) 1559d06b6d8SElad Raz 156eb1d1641SHerbert Xu struct net_bridge_port_group { 157eb1d1641SHerbert Xu struct net_bridge_port *port; 158e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 159eb1d1641SHerbert Xu struct hlist_node mglist; 160eb1d1641SHerbert Xu struct rcu_head rcu; 161eb1d1641SHerbert Xu struct timer_list timer; 1628ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 1639d06b6d8SElad Raz unsigned char flags; 164eb1d1641SHerbert Xu }; 165eb1d1641SHerbert Xu 166eb1d1641SHerbert Xu struct net_bridge_mdb_entry 167eb1d1641SHerbert Xu { 168eb1d1641SHerbert Xu struct hlist_node hlist[2]; 169eb1d1641SHerbert Xu struct net_bridge *br; 170e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 171eb1d1641SHerbert Xu struct rcu_head rcu; 172eb1d1641SHerbert Xu struct timer_list timer; 1738ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 1748a870178SHerbert Xu bool mglist; 175eb1d1641SHerbert Xu }; 176eb1d1641SHerbert Xu 177eb1d1641SHerbert Xu struct net_bridge_mdb_htable 178eb1d1641SHerbert Xu { 179eb1d1641SHerbert Xu struct hlist_head *mhash; 180eb1d1641SHerbert Xu struct rcu_head rcu; 181eb1d1641SHerbert Xu struct net_bridge_mdb_htable *old; 182eb1d1641SHerbert Xu u32 size; 183eb1d1641SHerbert Xu u32 max; 184eb1d1641SHerbert Xu u32 secret; 185eb1d1641SHerbert Xu u32 ver; 186eb1d1641SHerbert Xu }; 187eb1d1641SHerbert Xu 1881da177e4SLinus Torvalds struct net_bridge_port 1891da177e4SLinus Torvalds { 1901da177e4SLinus Torvalds struct net_bridge *br; 1911da177e4SLinus Torvalds struct net_device *dev; 1921da177e4SLinus Torvalds struct list_head list; 1931da177e4SLinus Torvalds 1941da177e4SLinus Torvalds /* STP */ 1951da177e4SLinus Torvalds u8 priority; 1961da177e4SLinus Torvalds u8 state; 1971da177e4SLinus Torvalds u16 port_no; 1981da177e4SLinus Torvalds unsigned char topology_change_ack; 1991da177e4SLinus Torvalds unsigned char config_pending; 2001da177e4SLinus Torvalds port_id port_id; 2011da177e4SLinus Torvalds port_id designated_port; 2021da177e4SLinus Torvalds bridge_id designated_root; 2031da177e4SLinus Torvalds bridge_id designated_bridge; 2041da177e4SLinus Torvalds u32 path_cost; 2051da177e4SLinus Torvalds u32 designated_cost; 2060c03150eSstephen hemminger unsigned long designated_age; 2071da177e4SLinus Torvalds 2081da177e4SLinus Torvalds struct timer_list forward_delay_timer; 2091da177e4SLinus Torvalds struct timer_list hold_timer; 2101da177e4SLinus Torvalds struct timer_list message_age_timer; 2111da177e4SLinus Torvalds struct kobject kobj; 2121da177e4SLinus Torvalds struct rcu_head rcu; 2133982d3d2SFischer, Anna 2143982d3d2SFischer, Anna unsigned long flags; 215eb1d1641SHerbert Xu 216eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 21790010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 218cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 21990010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 220cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 221eb1d1641SHerbert Xu unsigned char multicast_router; 222eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 223eb1d1641SHerbert Xu struct hlist_head mglist; 224eb1d1641SHerbert Xu struct hlist_node rlist; 225eb1d1641SHerbert Xu #endif 226e0f43752SSimon Arlott 227e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 228e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 229e0f43752SSimon Arlott #endif 23091d2c34aSHerbert Xu 23191d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 23291d2c34aSHerbert Xu struct netpoll *np; 23391d2c34aSHerbert Xu #endif 234243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 235907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 236243a2e63SVlad Yasevich #endif 2371da177e4SLinus Torvalds }; 2381da177e4SLinus Torvalds 239e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 240f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 241e028e4b8SVlad Yasevich 242f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 243f350a0a8SJiri Pirko 244b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 245b5ed54e9Sstephen hemminger { 246716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 247b5ed54e9Sstephen hemminger } 248b5ed54e9Sstephen hemminger 2491fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 250b5ed54e9Sstephen hemminger { 251ec1e5610SEric Dumazet return br_port_exists(dev) ? 252ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 253b5ed54e9Sstephen hemminger } 254b5ed54e9Sstephen hemminger 2551da177e4SLinus Torvalds struct net_bridge 2561da177e4SLinus Torvalds { 2571da177e4SLinus Torvalds spinlock_t lock; 2581da177e4SLinus Torvalds struct list_head port_list; 2591da177e4SLinus Torvalds struct net_device *dev; 26014bb4789Sstephen hemminger 2618f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 2621da177e4SLinus Torvalds spinlock_t hash_lock; 2631da177e4SLinus Torvalds struct hlist_head hash[BR_HASH_SIZE]; 26434666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 265efb6de9bSBernhard Thaler union { 2664adf0af6SSimon Wunderlich struct rtable fake_rtable; 267efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 268efb6de9bSBernhard Thaler }; 2694df53d8bSPatrick McHardy bool nf_call_iptables; 2704df53d8bSPatrick McHardy bool nf_call_ip6tables; 2714df53d8bSPatrick McHardy bool nf_call_arptables; 2724adf0af6SSimon Wunderlich #endif 273515853ccSstephen hemminger u16 group_fwd_mask; 274f2808d22SToshiaki Makita u16 group_fwd_mask_required; 275515853ccSstephen hemminger 2761da177e4SLinus Torvalds /* STP */ 2771da177e4SLinus Torvalds bridge_id designated_root; 2781da177e4SLinus Torvalds bridge_id bridge_id; 2791da177e4SLinus Torvalds u32 root_path_cost; 2801da177e4SLinus Torvalds unsigned long max_age; 2811da177e4SLinus Torvalds unsigned long hello_time; 2821da177e4SLinus Torvalds unsigned long forward_delay; 2831da177e4SLinus Torvalds unsigned long bridge_max_age; 2841da177e4SLinus Torvalds unsigned long ageing_time; 2851da177e4SLinus Torvalds unsigned long bridge_hello_time; 2861da177e4SLinus Torvalds unsigned long bridge_forward_delay; 2871da177e4SLinus Torvalds 288fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 289204177f3SToshiaki Makita bool group_addr_set; 2901da177e4SLinus Torvalds u16 root_port; 2919cde0708SStephen Hemminger 2929cde0708SStephen Hemminger enum { 2939cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 2949cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 2959cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 2969cde0708SStephen Hemminger } stp_enabled; 2979cde0708SStephen Hemminger 2981da177e4SLinus Torvalds unsigned char topology_change; 2991da177e4SLinus Torvalds unsigned char topology_change_detected; 3001da177e4SLinus Torvalds 301eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 302eb1d1641SHerbert Xu unsigned char multicast_router; 303eb1d1641SHerbert Xu 304eb1d1641SHerbert Xu u8 multicast_disabled:1; 305c5c23260SHerbert Xu u8 multicast_querier:1; 3061c8ad5bfSCong Wang u8 multicast_query_use_ifaddr:1; 307eb1d1641SHerbert Xu 308eb1d1641SHerbert Xu u32 hash_elasticity; 309eb1d1641SHerbert Xu u32 hash_max; 310eb1d1641SHerbert Xu 311eb1d1641SHerbert Xu u32 multicast_last_member_count; 312eb1d1641SHerbert Xu u32 multicast_startup_query_count; 313eb1d1641SHerbert Xu 314eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 315eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 316eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 317eb1d1641SHerbert Xu unsigned long multicast_query_interval; 318eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 319eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 320eb1d1641SHerbert Xu 321eb1d1641SHerbert Xu spinlock_t multicast_lock; 322e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 323eb1d1641SHerbert Xu struct hlist_head router_list; 324eb1d1641SHerbert Xu 325eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 32690010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 32790010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 328dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 329cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 33090010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 33190010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 332dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 333cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 334eb1d1641SHerbert Xu #endif 335eb1d1641SHerbert Xu 3361da177e4SLinus Torvalds struct timer_list hello_timer; 3371da177e4SLinus Torvalds struct timer_list tcn_timer; 3381da177e4SLinus Torvalds struct timer_list topology_change_timer; 3391da177e4SLinus Torvalds struct timer_list gc_timer; 34043b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 341e028e4b8SVlad Yasevich u32 auto_cnt; 342243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 343907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 344243a2e63SVlad Yasevich u8 vlan_enabled; 3458580e211SToshiaki Makita __be16 vlan_proto; 34696a20d9dSVlad Yasevich u16 default_pvid; 347243a2e63SVlad Yasevich #endif 3481da177e4SLinus Torvalds }; 3491da177e4SLinus Torvalds 35068b7c895SHerbert Xu struct br_input_skb_cb { 35168b7c895SHerbert Xu struct net_device *brdev; 35293fdd47eSHerbert Xu 35332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 354eb1d1641SHerbert Xu int igmp; 355eb1d1641SHerbert Xu int mrouters_only; 35632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 35793fdd47eSHerbert Xu 358842a9ae0SJouni Malinen bool proxyarp_replied; 35993fdd47eSHerbert Xu 36020adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 36120adfa1aSVlad Yasevich bool vlan_filtered; 36220adfa1aSVlad Yasevich #endif 36368b7c895SHerbert Xu }; 36468b7c895SHerbert Xu 36568b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 36668b7c895SHerbert Xu 36732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 36832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 36932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 37032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 37132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 37232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 37328a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 37428a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 37528a16c97Sstephen hemminger 37628a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 37728a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 37828a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 37928a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 38028a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 38128a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 38228a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 38328a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 38428a16c97Sstephen hemminger 38528a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 38628a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 38728a16c97Sstephen hemminger 3881da177e4SLinus Torvalds /* called under bridge lock */ 3891da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 3901da177e4SLinus Torvalds { 3911da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 3921da177e4SLinus Torvalds } 3931da177e4SLinus Torvalds 3942594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 3952594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 3962594e906SNikolay Aleksandrov { 3972594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 3982594e906SNikolay Aleksandrov } 3992594e906SNikolay Aleksandrov 4002594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 4012594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 4022594e906SNikolay Aleksandrov { 4032594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 4042594e906SNikolay Aleksandrov } 4052594e906SNikolay Aleksandrov 4066be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 4072594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 4082594e906SNikolay Aleksandrov { 4092594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 4102594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 4112594e906SNikolay Aleksandrov return true; 4122594e906SNikolay Aleksandrov else 4132594e906SNikolay Aleksandrov return false; 4142594e906SNikolay Aleksandrov } 4152594e906SNikolay Aleksandrov 4162594e906SNikolay Aleksandrov return true; 4172594e906SNikolay Aleksandrov } 4182594e906SNikolay Aleksandrov 4191da177e4SLinus Torvalds /* br_device.c */ 420348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 421348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 422348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 423cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 42491d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 42591d2c34aSHerbert Xu struct sk_buff *skb) 42691d2c34aSHerbert Xu { 42791d2c34aSHerbert Xu struct netpoll *np = p->np; 42891d2c34aSHerbert Xu 42991d2c34aSHerbert Xu if (np) 43091d2c34aSHerbert Xu netpoll_send_skb(np, skb); 43191d2c34aSHerbert Xu } 43291d2c34aSHerbert Xu 433a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 434348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 43591d2c34aSHerbert Xu #else 4369f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 43791d2c34aSHerbert Xu struct sk_buff *skb) 43891d2c34aSHerbert Xu { 43991d2c34aSHerbert Xu } 44091d2c34aSHerbert Xu 441a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 44291d2c34aSHerbert Xu { 44391d2c34aSHerbert Xu return 0; 44491d2c34aSHerbert Xu } 44591d2c34aSHerbert Xu 44691d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 44791d2c34aSHerbert Xu { 44891d2c34aSHerbert Xu } 449cfb478daSstephen hemminger #endif 4501da177e4SLinus Torvalds 4511da177e4SLinus Torvalds /* br_fdb.c */ 452348662a1SJoe Perches int br_fdb_init(void); 453348662a1SJoe Perches void br_fdb_fini(void); 454348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 455424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 456424bb9c9SToshiaki Makita const struct net_bridge_port *p, 457424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 458348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 459348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 460348662a1SJoe Perches void br_fdb_cleanup(unsigned long arg); 461348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 4621ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 463348662a1SJoe Perches struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, 464348662a1SJoe Perches const unsigned char *addr, __u16 vid); 465348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 466348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 467348662a1SJoe Perches unsigned long off); 468348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 469348662a1SJoe Perches const unsigned char *addr, u16 vid); 470348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 471a5642ab4SToshiaki Makita const unsigned char *addr, u16 vid, bool added_by_user); 47277162022SJohn Fastabend 473348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 474f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 475348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 476f6f6424bSJiri Pirko const unsigned char *addr, u16 vid, u16 nlh_flags); 477348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 4785d5eacb3SJamal Hadi Salim struct net_device *dev, struct net_device *fdev, int idx); 4798db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 4808db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 4813aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 4823aeb6617SJiri Pirko const unsigned char *addr, u16 vid); 4833aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 4843aeb6617SJiri Pirko const unsigned char *addr, u16 vid); 4851da177e4SLinus Torvalds 4861da177e4SLinus Torvalds /* br_forward.c */ 487348662a1SJoe Perches void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb); 4880c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 489348662a1SJoe Perches void br_forward(const struct net_bridge_port *to, 4907f7708f0SMichael Braun struct sk_buff *skb, struct sk_buff *skb0); 4910c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 492348662a1SJoe Perches void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast); 493348662a1SJoe Perches void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, 494867a5943SVlad Yasevich struct sk_buff *skb2, bool unicast); 4951da177e4SLinus Torvalds 4961da177e4SLinus Torvalds /* br_if.c */ 497348662a1SJoe Perches void br_port_carrier_check(struct net_bridge_port *p); 498348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 499348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 500348662a1SJoe Perches int br_add_if(struct net_bridge *br, struct net_device *dev); 501348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 502348662a1SJoe Perches int br_min_mtu(const struct net_bridge *br); 503348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 504c8f44affSMichał Mirosław netdev_features_t features); 505e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 5062796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 5071da177e4SLinus Torvalds 5081da177e4SLinus Torvalds /* br_input.c */ 5090c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 510348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 5111da177e4SLinus Torvalds 512859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 513859828c0SJiri Pirko { 514859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 515859828c0SJiri Pirko } 516859828c0SJiri Pirko 517859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 518859828c0SJiri Pirko { 519859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 520859828c0SJiri Pirko } 521859828c0SJiri Pirko 5221da177e4SLinus Torvalds /* br_ioctl.c */ 523348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 524348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 525348662a1SJoe Perches void __user *arg); 5261da177e4SLinus Torvalds 527eb1d1641SHerbert Xu /* br_multicast.c */ 528eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 5292ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 530348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 531fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 532348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 533eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 534348662a1SJoe Perches void br_multicast_add_port(struct net_bridge_port *port); 535348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 536348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 537348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 538348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 539348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 540348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 541e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 542348662a1SJoe Perches void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 5435cb5e947SHerbert Xu struct sk_buff *skb); 544348662a1SJoe Perches void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 5455cb5e947SHerbert Xu struct sk_buff *skb, struct sk_buff *skb2); 546348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 547348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 548348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 549348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 550348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 551348662a1SJoe Perches struct net_bridge_mdb_entry * 552348662a1SJoe Perches br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); 553348662a1SJoe Perches struct net_bridge_mdb_entry * 554348662a1SJoe Perches br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, 555348662a1SJoe Perches struct br_ip *group); 556348662a1SJoe Perches void br_multicast_free_pg(struct rcu_head *head); 557348662a1SJoe Perches struct net_bridge_port_group * 558348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 559762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 5609d06b6d8SElad Raz unsigned char flags); 561348662a1SJoe Perches void br_mdb_init(void); 562348662a1SJoe Perches void br_mdb_uninit(void); 56345ebcce5SElad Raz void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 56445ebcce5SElad Raz struct br_ip *group, int type, u8 flags); 565949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 566949f1e39SSatish Ashok int type); 56785b35269SSridhar Samudrala 568cfd56754SCong Wang #define mlock_dereference(X, br) \ 569cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 570cfd56754SCong Wang 57185b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 57285b35269SSridhar Samudrala { 57385b35269SSridhar Samudrala return br->multicast_router == 2 || 57485b35269SSridhar Samudrala (br->multicast_router == 1 && 57585b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 57685b35269SSridhar Samudrala } 577b00589afSLinus Lüssing 578cc0fdd80SLinus Lüssing static inline bool 579cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 58090010b36SLinus Lüssing struct bridge_mcast_other_query *querier) 581b00589afSLinus Lüssing { 582cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 583cc0fdd80SLinus Lüssing (br->multicast_querier || timer_pending(&querier->timer)); 584cc0fdd80SLinus Lüssing } 585cc0fdd80SLinus Lüssing 586cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 587cc0fdd80SLinus Lüssing struct ethhdr *eth) 588cc0fdd80SLinus Lüssing { 589cc0fdd80SLinus Lüssing switch (eth->h_proto) { 590cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 59190010b36SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip4_other_query); 592cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 593cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 59490010b36SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip6_other_query); 595cc0fdd80SLinus Lüssing #endif 596cc0fdd80SLinus Lüssing default: 597cc0fdd80SLinus Lüssing return false; 598cc0fdd80SLinus Lüssing } 599b00589afSLinus Lüssing } 600eb1d1641SHerbert Xu #else 601eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 602eb1d1641SHerbert Xu struct net_bridge_port *port, 60306499098SVlad Yasevich struct sk_buff *skb, 60406499098SVlad Yasevich u16 vid) 605eb1d1641SHerbert Xu { 606eb1d1641SHerbert Xu return 0; 607eb1d1641SHerbert Xu } 608eb1d1641SHerbert Xu 609eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 610fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 611eb1d1641SHerbert Xu { 612eb1d1641SHerbert Xu return NULL; 613eb1d1641SHerbert Xu } 614eb1d1641SHerbert Xu 615eb1d1641SHerbert Xu static inline void br_multicast_add_port(struct net_bridge_port *port) 616eb1d1641SHerbert Xu { 617eb1d1641SHerbert Xu } 618eb1d1641SHerbert Xu 619eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 620eb1d1641SHerbert Xu { 621eb1d1641SHerbert Xu } 622eb1d1641SHerbert Xu 623eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 624eb1d1641SHerbert Xu { 625eb1d1641SHerbert Xu } 626eb1d1641SHerbert Xu 627eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 628eb1d1641SHerbert Xu { 629eb1d1641SHerbert Xu } 630eb1d1641SHerbert Xu 631eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 632eb1d1641SHerbert Xu { 633eb1d1641SHerbert Xu } 634eb1d1641SHerbert Xu 635eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 636eb1d1641SHerbert Xu { 637eb1d1641SHerbert Xu } 638eb1d1641SHerbert Xu 639eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 640eb1d1641SHerbert Xu { 641eb1d1641SHerbert Xu } 6425cb5e947SHerbert Xu 643a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 644a7ce45a7SNikolay Aleksandrov { 645a7ce45a7SNikolay Aleksandrov } 646a7ce45a7SNikolay Aleksandrov 6475cb5e947SHerbert Xu static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 6485cb5e947SHerbert Xu struct sk_buff *skb) 6495cb5e947SHerbert Xu { 6505cb5e947SHerbert Xu } 6515cb5e947SHerbert Xu 6525cb5e947SHerbert Xu static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 6535cb5e947SHerbert Xu struct sk_buff *skb, 6545cb5e947SHerbert Xu struct sk_buff *skb2) 6555cb5e947SHerbert Xu { 6565cb5e947SHerbert Xu } 657eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 658eb1d1641SHerbert Xu { 65985b35269SSridhar Samudrala return 0; 660eb1d1641SHerbert Xu } 661cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 662cc0fdd80SLinus Lüssing struct ethhdr *eth) 663b00589afSLinus Lüssing { 664b00589afSLinus Lüssing return false; 665b00589afSLinus Lüssing } 666fdb184d1SRami Rosen static inline void br_mdb_init(void) 667fdb184d1SRami Rosen { 668fdb184d1SRami Rosen } 669fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 670fdb184d1SRami Rosen { 671fdb184d1SRami Rosen } 67285b35269SSridhar Samudrala #endif 673eb1d1641SHerbert Xu 674243a2e63SVlad Yasevich /* br_vlan.c */ 675243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 67677751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 67777751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 6782594e906SNikolay Aleksandrov u16 *vid); 67977751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 68085f46c6bSVlad Yasevich const struct sk_buff *skb); 681e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 682348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 6832594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 68478851988SVlad Yasevich struct sk_buff *skb); 685348662a1SJoe Perches int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); 686348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 687348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 6882594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 689204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 690a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 691348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 692d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 693204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 6945be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 69596a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 6960f963b75SNikolay Aleksandrov int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid); 697348662a1SJoe Perches int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); 698348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 699348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 7005be5a2dfSVlad Yasevich int nbp_vlan_init(struct net_bridge_port *port); 7012594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 702a37b85c9SVlad Yasevich 7032594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 704a37b85c9SVlad Yasevich const struct net_bridge *br) 705a37b85c9SVlad Yasevich { 706907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 707a37b85c9SVlad Yasevich } 708a37b85c9SVlad Yasevich 7092594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 710a37b85c9SVlad Yasevich const struct net_bridge_port *p) 711a37b85c9SVlad Yasevich { 712907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 713907b1e6eSNikolay Aleksandrov } 714907b1e6eSNikolay Aleksandrov 715907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 716907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 717907b1e6eSNikolay Aleksandrov { 718907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 719907b1e6eSNikolay Aleksandrov } 720907b1e6eSNikolay Aleksandrov 721907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 722907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 723907b1e6eSNikolay Aleksandrov { 724907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 725a37b85c9SVlad Yasevich } 726a37b85c9SVlad Yasevich 727a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 728a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 729a37b85c9SVlad Yasevich */ 730a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 731a37b85c9SVlad Yasevich { 732a37b85c9SVlad Yasevich int err = 0; 733a37b85c9SVlad Yasevich 7342594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 735df8a39deSJiri Pirko *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; 7362594e906SNikolay Aleksandrov } else { 737a37b85c9SVlad Yasevich *vid = 0; 738a37b85c9SVlad Yasevich err = -EINVAL; 739a37b85c9SVlad Yasevich } 740a37b85c9SVlad Yasevich 741a37b85c9SVlad Yasevich return err; 742a37b85c9SVlad Yasevich } 74378851988SVlad Yasevich 74477751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 74578851988SVlad Yasevich { 74677751ee8SNikolay Aleksandrov if (!vg) 7475be5a2dfSVlad Yasevich return 0; 7485be5a2dfSVlad Yasevich 74978851988SVlad Yasevich smp_rmb(); 75077751ee8SNikolay Aleksandrov return vg->pvid; 75178851988SVlad Yasevich } 75278851988SVlad Yasevich 7532796d0c6SVlad Yasevich static inline int br_vlan_enabled(struct net_bridge *br) 7542796d0c6SVlad Yasevich { 7552796d0c6SVlad Yasevich return br->vlan_enabled; 7562796d0c6SVlad Yasevich } 757243a2e63SVlad Yasevich #else 75877751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 75977751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 7602594e906SNikolay Aleksandrov struct sk_buff *skb, 7612594e906SNikolay Aleksandrov u16 *vid) 7622594e906SNikolay Aleksandrov { 7632594e906SNikolay Aleksandrov return true; 7642594e906SNikolay Aleksandrov } 7652594e906SNikolay Aleksandrov 7662594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 76785f46c6bSVlad Yasevich const struct sk_buff *skb) 76885f46c6bSVlad Yasevich { 76985f46c6bSVlad Yasevich return true; 77085f46c6bSVlad Yasevich } 77185f46c6bSVlad Yasevich 772e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 773e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 774e0d7968aSToshiaki Makita { 775e0d7968aSToshiaki Makita return true; 776e0d7968aSToshiaki Makita } 777e0d7968aSToshiaki Makita 77878851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 7792594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 78078851988SVlad Yasevich struct sk_buff *skb) 78178851988SVlad Yasevich { 78278851988SVlad Yasevich return skb; 78378851988SVlad Yasevich } 78478851988SVlad Yasevich 785552406c4SVlad Yasevich static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) 786243a2e63SVlad Yasevich { 787243a2e63SVlad Yasevich return -EOPNOTSUPP; 788243a2e63SVlad Yasevich } 789243a2e63SVlad Yasevich 790243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 791243a2e63SVlad Yasevich { 792243a2e63SVlad Yasevich return -EOPNOTSUPP; 793243a2e63SVlad Yasevich } 794243a2e63SVlad Yasevich 795243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 796243a2e63SVlad Yasevich { 797243a2e63SVlad Yasevich } 798243a2e63SVlad Yasevich 799204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 800204177f3SToshiaki Makita { 801204177f3SToshiaki Makita } 802204177f3SToshiaki Makita 8035be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 8048580e211SToshiaki Makita { 8055be5a2dfSVlad Yasevich return 0; 8068580e211SToshiaki Makita } 8078580e211SToshiaki Makita 808552406c4SVlad Yasevich static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) 809243a2e63SVlad Yasevich { 810243a2e63SVlad Yasevich return -EOPNOTSUPP; 811243a2e63SVlad Yasevich } 812243a2e63SVlad Yasevich 813243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 814243a2e63SVlad Yasevich { 815243a2e63SVlad Yasevich return -EOPNOTSUPP; 816243a2e63SVlad Yasevich } 817243a2e63SVlad Yasevich 818243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 819243a2e63SVlad Yasevich { 820243a2e63SVlad Yasevich } 821243a2e63SVlad Yasevich 8222594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 8232594e906SNikolay Aleksandrov u16 vid) 824a37b85c9SVlad Yasevich { 825a37b85c9SVlad Yasevich return NULL; 826a37b85c9SVlad Yasevich } 827bc9a25d2SVlad Yasevich 8285be5a2dfSVlad Yasevich static inline int nbp_vlan_init(struct net_bridge_port *port) 8295be5a2dfSVlad Yasevich { 8305be5a2dfSVlad Yasevich return 0; 8315be5a2dfSVlad Yasevich } 8325be5a2dfSVlad Yasevich 83378851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 834a37b85c9SVlad Yasevich { 835a37b85c9SVlad Yasevich return 0; 836a37b85c9SVlad Yasevich } 8372594e906SNikolay Aleksandrov 83877751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 83978851988SVlad Yasevich { 8403df6bf45SVlad Yasevich return 0; 84178851988SVlad Yasevich } 8422796d0c6SVlad Yasevich 843d4f0e095SAlexei Starovoitov static inline int br_vlan_enabled(struct net_bridge *br) 8442796d0c6SVlad Yasevich { 8452796d0c6SVlad Yasevich return 0; 8462796d0c6SVlad Yasevich } 847a7854037SNikolay Aleksandrov 848a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 849a7854037SNikolay Aleksandrov unsigned long val) 850a7854037SNikolay Aleksandrov { 851a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 852a7854037SNikolay Aleksandrov } 8532594e906SNikolay Aleksandrov 8542594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 8552594e906SNikolay Aleksandrov u32 filter_mask) 8562594e906SNikolay Aleksandrov { 8572594e906SNikolay Aleksandrov return 0; 8582594e906SNikolay Aleksandrov } 8592594e906SNikolay Aleksandrov 8602594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 8612594e906SNikolay Aleksandrov const struct net_bridge *br) 8622594e906SNikolay Aleksandrov { 8632594e906SNikolay Aleksandrov return NULL; 8642594e906SNikolay Aleksandrov } 8652594e906SNikolay Aleksandrov 8662594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 8672594e906SNikolay Aleksandrov const struct net_bridge_port *p) 8682594e906SNikolay Aleksandrov { 8692594e906SNikolay Aleksandrov return NULL; 8702594e906SNikolay Aleksandrov } 871907b1e6eSNikolay Aleksandrov 872907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 873907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 874907b1e6eSNikolay Aleksandrov { 875907b1e6eSNikolay Aleksandrov return NULL; 876907b1e6eSNikolay Aleksandrov } 877907b1e6eSNikolay Aleksandrov 878907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 879907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 880907b1e6eSNikolay Aleksandrov { 881907b1e6eSNikolay Aleksandrov return NULL; 882907b1e6eSNikolay Aleksandrov } 883907b1e6eSNikolay Aleksandrov 884243a2e63SVlad Yasevich #endif 885243a2e63SVlad Yasevich 8861a4ba64dSPablo Neira Ayuso struct nf_br_ops { 8871a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 8881a4ba64dSPablo Neira Ayuso }; 8891a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 8901a4ba64dSPablo Neira Ayuso 8911da177e4SLinus Torvalds /* br_netfilter.c */ 89234666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 89334666d46SPablo Neira Ayuso int br_nf_core_init(void); 89434666d46SPablo Neira Ayuso void br_nf_core_fini(void); 895348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 896c0909713SStephen Hemminger #else 89734666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 89834666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 8994adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 900c0909713SStephen Hemminger #endif 9011da177e4SLinus Torvalds 9021da177e4SLinus Torvalds /* br_stp.c */ 903775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 904348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 905348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 906348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 9071da177e4SLinus Torvalds 908348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 909348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 910348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 911348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 912c62987bbSScott Feldman int br_set_ageing_time(struct net_bridge *br, u32 ageing_time); 91314f98f25Sstephen hemminger 91414f98f25Sstephen hemminger 9151da177e4SLinus Torvalds /* br_stp_if.c */ 916348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 917348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 918348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 919348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 920348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 921348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 922348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 923348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 924348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 925348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 926348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 9271da177e4SLinus Torvalds 9281da177e4SLinus Torvalds /* br_stp_bpdu.c */ 9297c85fbf0SPatrick McHardy struct stp_proto; 930348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 9317c85fbf0SPatrick McHardy struct net_device *dev); 9321da177e4SLinus Torvalds 9331da177e4SLinus Torvalds /* br_stp_timer.c */ 934348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 935348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 936348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 9371da177e4SLinus Torvalds 9381da177e4SLinus Torvalds /* br.c */ 939e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 940da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 941da678292SMichał Mirosław #endif 9421da177e4SLinus Torvalds 94311dc1f36SStephen Hemminger /* br_netlink.c */ 944149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 945348662a1SJoe Perches int br_netlink_init(void); 946348662a1SJoe Perches void br_netlink_fini(void); 947348662a1SJoe Perches void br_ifinfo_notify(int event, struct net_bridge_port *port); 948add511b3SRoopa Prabhu int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 949add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 950348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 95146c264daSNicolas Dichtel u32 filter_mask, int nlflags); 95211dc1f36SStephen Hemminger 9531da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 9541da177e4SLinus Torvalds /* br_sysfs_if.c */ 95552cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 956348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 957348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 9581da177e4SLinus Torvalds 9591da177e4SLinus Torvalds /* br_sysfs_br.c */ 960348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 961348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 9621da177e4SLinus Torvalds 9631da177e4SLinus Torvalds #else 9641da177e4SLinus Torvalds 9650cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 9660cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 9670cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 9680cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 9691da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 9701da177e4SLinus Torvalds 9711da177e4SLinus Torvalds #endif 972