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; 135907b1e6eSNikolay Aleksandrov struct rcu_head rcu; 136243a2e63SVlad Yasevich }; 137243a2e63SVlad Yasevich 1381da177e4SLinus Torvalds struct net_bridge_fdb_entry 1391da177e4SLinus Torvalds { 1401da177e4SLinus Torvalds struct hlist_node hlist; 1411da177e4SLinus Torvalds struct net_bridge_port *dst; 1421da177e4SLinus Torvalds 1437cd8861aSstephen hemminger unsigned long updated; 1447cd8861aSstephen hemminger unsigned long used; 1451da177e4SLinus Torvalds mac_addr addr; 146b22fbf22SNikolay Aleksandrov __u16 vlan_id; 14793859b13SJiri Pirko unsigned char is_local:1, 14893859b13SJiri Pirko is_static:1, 149cf6b8e1eSScott Feldman added_by_user:1, 150cf6b8e1eSScott Feldman added_by_external_learn:1; 151b22fbf22SNikolay Aleksandrov struct rcu_head rcu; 1521da177e4SLinus Torvalds }; 1531da177e4SLinus Torvalds 154eb1d1641SHerbert Xu struct net_bridge_port_group { 155eb1d1641SHerbert Xu struct net_bridge_port *port; 156e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 157eb1d1641SHerbert Xu struct hlist_node mglist; 158eb1d1641SHerbert Xu struct rcu_head rcu; 159eb1d1641SHerbert Xu struct timer_list timer; 1608ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 161ccb1c31aSAmerigo Wang unsigned char state; 162eb1d1641SHerbert Xu }; 163eb1d1641SHerbert Xu 164eb1d1641SHerbert Xu struct net_bridge_mdb_entry 165eb1d1641SHerbert Xu { 166eb1d1641SHerbert Xu struct hlist_node hlist[2]; 167eb1d1641SHerbert Xu struct net_bridge *br; 168e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 169eb1d1641SHerbert Xu struct rcu_head rcu; 170eb1d1641SHerbert Xu struct timer_list timer; 1718ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 1728a870178SHerbert Xu bool mglist; 173eb1d1641SHerbert Xu }; 174eb1d1641SHerbert Xu 175eb1d1641SHerbert Xu struct net_bridge_mdb_htable 176eb1d1641SHerbert Xu { 177eb1d1641SHerbert Xu struct hlist_head *mhash; 178eb1d1641SHerbert Xu struct rcu_head rcu; 179eb1d1641SHerbert Xu struct net_bridge_mdb_htable *old; 180eb1d1641SHerbert Xu u32 size; 181eb1d1641SHerbert Xu u32 max; 182eb1d1641SHerbert Xu u32 secret; 183eb1d1641SHerbert Xu u32 ver; 184eb1d1641SHerbert Xu }; 185eb1d1641SHerbert Xu 1861da177e4SLinus Torvalds struct net_bridge_port 1871da177e4SLinus Torvalds { 1881da177e4SLinus Torvalds struct net_bridge *br; 1891da177e4SLinus Torvalds struct net_device *dev; 1901da177e4SLinus Torvalds struct list_head list; 1911da177e4SLinus Torvalds 1921da177e4SLinus Torvalds /* STP */ 1931da177e4SLinus Torvalds u8 priority; 1941da177e4SLinus Torvalds u8 state; 1951da177e4SLinus Torvalds u16 port_no; 1961da177e4SLinus Torvalds unsigned char topology_change_ack; 1971da177e4SLinus Torvalds unsigned char config_pending; 1981da177e4SLinus Torvalds port_id port_id; 1991da177e4SLinus Torvalds port_id designated_port; 2001da177e4SLinus Torvalds bridge_id designated_root; 2011da177e4SLinus Torvalds bridge_id designated_bridge; 2021da177e4SLinus Torvalds u32 path_cost; 2031da177e4SLinus Torvalds u32 designated_cost; 2040c03150eSstephen hemminger unsigned long designated_age; 2051da177e4SLinus Torvalds 2061da177e4SLinus Torvalds struct timer_list forward_delay_timer; 2071da177e4SLinus Torvalds struct timer_list hold_timer; 2081da177e4SLinus Torvalds struct timer_list message_age_timer; 2091da177e4SLinus Torvalds struct kobject kobj; 2101da177e4SLinus Torvalds struct rcu_head rcu; 2113982d3d2SFischer, Anna 2123982d3d2SFischer, Anna unsigned long flags; 213eb1d1641SHerbert Xu 214eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 21590010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 216cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 21790010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 218cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 219eb1d1641SHerbert Xu unsigned char multicast_router; 220eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 221eb1d1641SHerbert Xu struct hlist_head mglist; 222eb1d1641SHerbert Xu struct hlist_node rlist; 223eb1d1641SHerbert Xu #endif 224e0f43752SSimon Arlott 225e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 226e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 227e0f43752SSimon Arlott #endif 22891d2c34aSHerbert Xu 22991d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 23091d2c34aSHerbert Xu struct netpoll *np; 23191d2c34aSHerbert Xu #endif 232243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 233907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 234243a2e63SVlad Yasevich #endif 2351da177e4SLinus Torvalds }; 2361da177e4SLinus Torvalds 237e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 238f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 239e028e4b8SVlad Yasevich 240f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 241f350a0a8SJiri Pirko 242b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 243b5ed54e9Sstephen hemminger { 244716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 245b5ed54e9Sstephen hemminger } 246b5ed54e9Sstephen hemminger 2471fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 248b5ed54e9Sstephen hemminger { 249ec1e5610SEric Dumazet return br_port_exists(dev) ? 250ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 251b5ed54e9Sstephen hemminger } 252b5ed54e9Sstephen hemminger 2531da177e4SLinus Torvalds struct net_bridge 2541da177e4SLinus Torvalds { 2551da177e4SLinus Torvalds spinlock_t lock; 2561da177e4SLinus Torvalds struct list_head port_list; 2571da177e4SLinus Torvalds struct net_device *dev; 25814bb4789Sstephen hemminger 2598f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 2601da177e4SLinus Torvalds spinlock_t hash_lock; 2611da177e4SLinus Torvalds struct hlist_head hash[BR_HASH_SIZE]; 26234666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 263efb6de9bSBernhard Thaler union { 2644adf0af6SSimon Wunderlich struct rtable fake_rtable; 265efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 266efb6de9bSBernhard Thaler }; 2674df53d8bSPatrick McHardy bool nf_call_iptables; 2684df53d8bSPatrick McHardy bool nf_call_ip6tables; 2694df53d8bSPatrick McHardy bool nf_call_arptables; 2704adf0af6SSimon Wunderlich #endif 271515853ccSstephen hemminger u16 group_fwd_mask; 272f2808d22SToshiaki Makita u16 group_fwd_mask_required; 273515853ccSstephen hemminger 2741da177e4SLinus Torvalds /* STP */ 2751da177e4SLinus Torvalds bridge_id designated_root; 2761da177e4SLinus Torvalds bridge_id bridge_id; 2771da177e4SLinus Torvalds u32 root_path_cost; 2781da177e4SLinus Torvalds unsigned long max_age; 2791da177e4SLinus Torvalds unsigned long hello_time; 2801da177e4SLinus Torvalds unsigned long forward_delay; 2811da177e4SLinus Torvalds unsigned long bridge_max_age; 2821da177e4SLinus Torvalds unsigned long ageing_time; 2831da177e4SLinus Torvalds unsigned long bridge_hello_time; 2841da177e4SLinus Torvalds unsigned long bridge_forward_delay; 2851da177e4SLinus Torvalds 286fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 287204177f3SToshiaki Makita bool group_addr_set; 2881da177e4SLinus Torvalds u16 root_port; 2899cde0708SStephen Hemminger 2909cde0708SStephen Hemminger enum { 2919cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 2929cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 2939cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 2949cde0708SStephen Hemminger } stp_enabled; 2959cde0708SStephen Hemminger 2961da177e4SLinus Torvalds unsigned char topology_change; 2971da177e4SLinus Torvalds unsigned char topology_change_detected; 2981da177e4SLinus Torvalds 299eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 300eb1d1641SHerbert Xu unsigned char multicast_router; 301eb1d1641SHerbert Xu 302eb1d1641SHerbert Xu u8 multicast_disabled:1; 303c5c23260SHerbert Xu u8 multicast_querier:1; 3041c8ad5bfSCong Wang u8 multicast_query_use_ifaddr:1; 305eb1d1641SHerbert Xu 306eb1d1641SHerbert Xu u32 hash_elasticity; 307eb1d1641SHerbert Xu u32 hash_max; 308eb1d1641SHerbert Xu 309eb1d1641SHerbert Xu u32 multicast_last_member_count; 310eb1d1641SHerbert Xu u32 multicast_startup_query_count; 311eb1d1641SHerbert Xu 312eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 313eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 314eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 315eb1d1641SHerbert Xu unsigned long multicast_query_interval; 316eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 317eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 318eb1d1641SHerbert Xu 319eb1d1641SHerbert Xu spinlock_t multicast_lock; 320e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 321eb1d1641SHerbert Xu struct hlist_head router_list; 322eb1d1641SHerbert Xu 323eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 32490010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 32590010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 326dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 327cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 32890010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 32990010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 330dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 331cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 332eb1d1641SHerbert Xu #endif 333eb1d1641SHerbert Xu 3341da177e4SLinus Torvalds struct timer_list hello_timer; 3351da177e4SLinus Torvalds struct timer_list tcn_timer; 3361da177e4SLinus Torvalds struct timer_list topology_change_timer; 3371da177e4SLinus Torvalds struct timer_list gc_timer; 33843b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 339e028e4b8SVlad Yasevich u32 auto_cnt; 340243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 341907b1e6eSNikolay Aleksandrov struct net_bridge_vlan_group __rcu *vlgrp; 342243a2e63SVlad Yasevich u8 vlan_enabled; 3438580e211SToshiaki Makita __be16 vlan_proto; 34496a20d9dSVlad Yasevich u16 default_pvid; 345243a2e63SVlad Yasevich #endif 3461da177e4SLinus Torvalds }; 3471da177e4SLinus Torvalds 34868b7c895SHerbert Xu struct br_input_skb_cb { 34968b7c895SHerbert Xu struct net_device *brdev; 35093fdd47eSHerbert Xu 35132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 352eb1d1641SHerbert Xu int igmp; 353eb1d1641SHerbert Xu int mrouters_only; 35432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 35593fdd47eSHerbert Xu 356842a9ae0SJouni Malinen bool proxyarp_replied; 35793fdd47eSHerbert Xu 35820adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 35920adfa1aSVlad Yasevich bool vlan_filtered; 36020adfa1aSVlad Yasevich #endif 36168b7c895SHerbert Xu }; 36268b7c895SHerbert Xu 36368b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 36468b7c895SHerbert Xu 36532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 36632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 36732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 36832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 36932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 37032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 37128a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 37228a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 37328a16c97Sstephen hemminger 37428a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 37528a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 37628a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 37728a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 37828a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 37928a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 38028a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 38128a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 38228a16c97Sstephen hemminger 38328a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 38428a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 38528a16c97Sstephen hemminger 3861da177e4SLinus Torvalds /* called under bridge lock */ 3871da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 3881da177e4SLinus Torvalds { 3891da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 3901da177e4SLinus Torvalds } 3911da177e4SLinus Torvalds 3922594e906SNikolay Aleksandrov /* check if a VLAN entry is global */ 3932594e906SNikolay Aleksandrov static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) 3942594e906SNikolay Aleksandrov { 3952594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_MASTER; 3962594e906SNikolay Aleksandrov } 3972594e906SNikolay Aleksandrov 3982594e906SNikolay Aleksandrov /* check if a VLAN entry is used by the bridge */ 3992594e906SNikolay Aleksandrov static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) 4002594e906SNikolay Aleksandrov { 4012594e906SNikolay Aleksandrov return v->flags & BRIDGE_VLAN_INFO_BRENTRY; 4022594e906SNikolay Aleksandrov } 4032594e906SNikolay Aleksandrov 4046be144f6SNikolay Aleksandrov /* check if we should use the vlan entry, returns false if it's only context */ 4052594e906SNikolay Aleksandrov static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) 4062594e906SNikolay Aleksandrov { 4072594e906SNikolay Aleksandrov if (br_vlan_is_master(v)) { 4082594e906SNikolay Aleksandrov if (br_vlan_is_brentry(v)) 4092594e906SNikolay Aleksandrov return true; 4102594e906SNikolay Aleksandrov else 4112594e906SNikolay Aleksandrov return false; 4122594e906SNikolay Aleksandrov } 4132594e906SNikolay Aleksandrov 4142594e906SNikolay Aleksandrov return true; 4152594e906SNikolay Aleksandrov } 4162594e906SNikolay Aleksandrov 4171da177e4SLinus Torvalds /* br_device.c */ 418348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 419348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 420348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 421cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 42291d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 42391d2c34aSHerbert Xu struct sk_buff *skb) 42491d2c34aSHerbert Xu { 42591d2c34aSHerbert Xu struct netpoll *np = p->np; 42691d2c34aSHerbert Xu 42791d2c34aSHerbert Xu if (np) 42891d2c34aSHerbert Xu netpoll_send_skb(np, skb); 42991d2c34aSHerbert Xu } 43091d2c34aSHerbert Xu 431a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 432348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 43391d2c34aSHerbert Xu #else 4349f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 43591d2c34aSHerbert Xu struct sk_buff *skb) 43691d2c34aSHerbert Xu { 43791d2c34aSHerbert Xu } 43891d2c34aSHerbert Xu 439a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 44091d2c34aSHerbert Xu { 44191d2c34aSHerbert Xu return 0; 44291d2c34aSHerbert Xu } 44391d2c34aSHerbert Xu 44491d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 44591d2c34aSHerbert Xu { 44691d2c34aSHerbert Xu } 447cfb478daSstephen hemminger #endif 4481da177e4SLinus Torvalds 4491da177e4SLinus Torvalds /* br_fdb.c */ 450348662a1SJoe Perches int br_fdb_init(void); 451348662a1SJoe Perches void br_fdb_fini(void); 452348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 453424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 454424bb9c9SToshiaki Makita const struct net_bridge_port *p, 455424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 456348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 457348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 458348662a1SJoe Perches void br_fdb_cleanup(unsigned long arg); 459348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 4601ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 461348662a1SJoe Perches struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, 462348662a1SJoe Perches const unsigned char *addr, __u16 vid); 463348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 464348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 465348662a1SJoe Perches unsigned long off); 466348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 467348662a1SJoe Perches const unsigned char *addr, u16 vid); 468348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 469a5642ab4SToshiaki Makita const unsigned char *addr, u16 vid, bool added_by_user); 47077162022SJohn Fastabend 471348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 472f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 473348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 474f6f6424bSJiri Pirko const unsigned char *addr, u16 vid, u16 nlh_flags); 475348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 4765d5eacb3SJamal Hadi Salim struct net_device *dev, struct net_device *fdev, int idx); 4778db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 4788db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 4793aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 4803aeb6617SJiri Pirko const unsigned char *addr, u16 vid); 4813aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 4823aeb6617SJiri Pirko const unsigned char *addr, u16 vid); 4831da177e4SLinus Torvalds 4841da177e4SLinus Torvalds /* br_forward.c */ 485348662a1SJoe Perches void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb); 4860c4b51f0SEric W. Biederman int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); 487348662a1SJoe Perches void br_forward(const struct net_bridge_port *to, 4887f7708f0SMichael Braun struct sk_buff *skb, struct sk_buff *skb0); 4890c4b51f0SEric W. Biederman int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 490348662a1SJoe Perches void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast); 491348662a1SJoe Perches void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, 492867a5943SVlad Yasevich struct sk_buff *skb2, bool unicast); 4931da177e4SLinus Torvalds 4941da177e4SLinus Torvalds /* br_if.c */ 495348662a1SJoe Perches void br_port_carrier_check(struct net_bridge_port *p); 496348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 497348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 498348662a1SJoe Perches int br_add_if(struct net_bridge *br, struct net_device *dev); 499348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 500348662a1SJoe Perches int br_min_mtu(const struct net_bridge *br); 501348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 502c8f44affSMichał Mirosław netdev_features_t features); 503e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 5042796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 5051da177e4SLinus Torvalds 5061da177e4SLinus Torvalds /* br_input.c */ 5070c4b51f0SEric W. Biederman int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); 508348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 5091da177e4SLinus Torvalds 510859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 511859828c0SJiri Pirko { 512859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 513859828c0SJiri Pirko } 514859828c0SJiri Pirko 515859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 516859828c0SJiri Pirko { 517859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 518859828c0SJiri Pirko } 519859828c0SJiri Pirko 5201da177e4SLinus Torvalds /* br_ioctl.c */ 521348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 522348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 523348662a1SJoe Perches void __user *arg); 5241da177e4SLinus Torvalds 525eb1d1641SHerbert Xu /* br_multicast.c */ 526eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 5272ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 528348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 529fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 530348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 531eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 532348662a1SJoe Perches void br_multicast_add_port(struct net_bridge_port *port); 533348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 534348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 535348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 536348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 537348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 538348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 539e10177abSSatish Ashok void br_multicast_dev_del(struct net_bridge *br); 540348662a1SJoe Perches void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 5415cb5e947SHerbert Xu struct sk_buff *skb); 542348662a1SJoe Perches void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 5435cb5e947SHerbert Xu struct sk_buff *skb, struct sk_buff *skb2); 544348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 545348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 546348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 547348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 548348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 549348662a1SJoe Perches struct net_bridge_mdb_entry * 550348662a1SJoe Perches br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); 551348662a1SJoe Perches struct net_bridge_mdb_entry * 552348662a1SJoe Perches br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, 553348662a1SJoe Perches struct br_ip *group); 554348662a1SJoe Perches void br_multicast_free_pg(struct rcu_head *head); 555348662a1SJoe Perches struct net_bridge_port_group * 556348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 557762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 558ccb1c31aSAmerigo Wang unsigned char state); 559348662a1SJoe Perches void br_mdb_init(void); 560348662a1SJoe Perches void br_mdb_uninit(void); 561348662a1SJoe Perches void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 56209cf0211SNikolay Aleksandrov struct br_ip *group, int type, u8 state); 563949f1e39SSatish Ashok void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, 564949f1e39SSatish Ashok int type); 56585b35269SSridhar Samudrala 566cfd56754SCong Wang #define mlock_dereference(X, br) \ 567cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 568cfd56754SCong Wang 56985b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 57085b35269SSridhar Samudrala { 57185b35269SSridhar Samudrala return br->multicast_router == 2 || 57285b35269SSridhar Samudrala (br->multicast_router == 1 && 57385b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 57485b35269SSridhar Samudrala } 575b00589afSLinus Lüssing 576cc0fdd80SLinus Lüssing static inline bool 577cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 57890010b36SLinus Lüssing struct bridge_mcast_other_query *querier) 579b00589afSLinus Lüssing { 580cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 581cc0fdd80SLinus Lüssing (br->multicast_querier || timer_pending(&querier->timer)); 582cc0fdd80SLinus Lüssing } 583cc0fdd80SLinus Lüssing 584cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 585cc0fdd80SLinus Lüssing struct ethhdr *eth) 586cc0fdd80SLinus Lüssing { 587cc0fdd80SLinus Lüssing switch (eth->h_proto) { 588cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 58990010b36SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip4_other_query); 590cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 591cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 59290010b36SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip6_other_query); 593cc0fdd80SLinus Lüssing #endif 594cc0fdd80SLinus Lüssing default: 595cc0fdd80SLinus Lüssing return false; 596cc0fdd80SLinus Lüssing } 597b00589afSLinus Lüssing } 598eb1d1641SHerbert Xu #else 599eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 600eb1d1641SHerbert Xu struct net_bridge_port *port, 60106499098SVlad Yasevich struct sk_buff *skb, 60206499098SVlad Yasevich u16 vid) 603eb1d1641SHerbert Xu { 604eb1d1641SHerbert Xu return 0; 605eb1d1641SHerbert Xu } 606eb1d1641SHerbert Xu 607eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 608fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 609eb1d1641SHerbert Xu { 610eb1d1641SHerbert Xu return NULL; 611eb1d1641SHerbert Xu } 612eb1d1641SHerbert Xu 613eb1d1641SHerbert Xu static inline void br_multicast_add_port(struct net_bridge_port *port) 614eb1d1641SHerbert Xu { 615eb1d1641SHerbert Xu } 616eb1d1641SHerbert Xu 617eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 618eb1d1641SHerbert Xu { 619eb1d1641SHerbert Xu } 620eb1d1641SHerbert Xu 621eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 622eb1d1641SHerbert Xu { 623eb1d1641SHerbert Xu } 624eb1d1641SHerbert Xu 625eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 626eb1d1641SHerbert Xu { 627eb1d1641SHerbert Xu } 628eb1d1641SHerbert Xu 629eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 630eb1d1641SHerbert Xu { 631eb1d1641SHerbert Xu } 632eb1d1641SHerbert Xu 633eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 634eb1d1641SHerbert Xu { 635eb1d1641SHerbert Xu } 636eb1d1641SHerbert Xu 637eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 638eb1d1641SHerbert Xu { 639eb1d1641SHerbert Xu } 6405cb5e947SHerbert Xu 641a7ce45a7SNikolay Aleksandrov static inline void br_multicast_dev_del(struct net_bridge *br) 642a7ce45a7SNikolay Aleksandrov { 643a7ce45a7SNikolay Aleksandrov } 644a7ce45a7SNikolay Aleksandrov 6455cb5e947SHerbert Xu static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 6465cb5e947SHerbert Xu struct sk_buff *skb) 6475cb5e947SHerbert Xu { 6485cb5e947SHerbert Xu } 6495cb5e947SHerbert Xu 6505cb5e947SHerbert Xu static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 6515cb5e947SHerbert Xu struct sk_buff *skb, 6525cb5e947SHerbert Xu struct sk_buff *skb2) 6535cb5e947SHerbert Xu { 6545cb5e947SHerbert Xu } 655eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 656eb1d1641SHerbert Xu { 65785b35269SSridhar Samudrala return 0; 658eb1d1641SHerbert Xu } 659cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 660cc0fdd80SLinus Lüssing struct ethhdr *eth) 661b00589afSLinus Lüssing { 662b00589afSLinus Lüssing return false; 663b00589afSLinus Lüssing } 664fdb184d1SRami Rosen static inline void br_mdb_init(void) 665fdb184d1SRami Rosen { 666fdb184d1SRami Rosen } 667fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 668fdb184d1SRami Rosen { 669fdb184d1SRami Rosen } 67085b35269SSridhar Samudrala #endif 671eb1d1641SHerbert Xu 672243a2e63SVlad Yasevich /* br_vlan.c */ 673243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 67477751ee8SNikolay Aleksandrov bool br_allowed_ingress(const struct net_bridge *br, 67577751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, struct sk_buff *skb, 6762594e906SNikolay Aleksandrov u16 *vid); 67777751ee8SNikolay Aleksandrov bool br_allowed_egress(struct net_bridge_vlan_group *vg, 67885f46c6bSVlad Yasevich const struct sk_buff *skb); 679e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 680348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 6812594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 68278851988SVlad Yasevich struct sk_buff *skb); 683348662a1SJoe Perches int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); 684348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 685348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 6862594e906SNikolay Aleksandrov struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); 687204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 688a7854037SNikolay Aleksandrov int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 689348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 690d2d427b3SToshiaki Makita int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); 691204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 6925be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 69396a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 6940f963b75SNikolay Aleksandrov int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid); 695348662a1SJoe Perches int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); 696348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 697348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 6985be5a2dfSVlad Yasevich int nbp_vlan_init(struct net_bridge_port *port); 6992594e906SNikolay Aleksandrov int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); 700a37b85c9SVlad Yasevich 7012594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 702a37b85c9SVlad Yasevich const struct net_bridge *br) 703a37b85c9SVlad Yasevich { 704907b1e6eSNikolay Aleksandrov return rtnl_dereference(br->vlgrp); 705a37b85c9SVlad Yasevich } 706a37b85c9SVlad Yasevich 7072594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 708a37b85c9SVlad Yasevich const struct net_bridge_port *p) 709a37b85c9SVlad Yasevich { 710907b1e6eSNikolay Aleksandrov return rtnl_dereference(p->vlgrp); 711907b1e6eSNikolay Aleksandrov } 712907b1e6eSNikolay Aleksandrov 713907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 714907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 715907b1e6eSNikolay Aleksandrov { 716907b1e6eSNikolay Aleksandrov return rcu_dereference(br->vlgrp); 717907b1e6eSNikolay Aleksandrov } 718907b1e6eSNikolay Aleksandrov 719907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 720907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 721907b1e6eSNikolay Aleksandrov { 722907b1e6eSNikolay Aleksandrov return rcu_dereference(p->vlgrp); 723a37b85c9SVlad Yasevich } 724a37b85c9SVlad Yasevich 725a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 726a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 727a37b85c9SVlad Yasevich */ 728a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 729a37b85c9SVlad Yasevich { 730a37b85c9SVlad Yasevich int err = 0; 731a37b85c9SVlad Yasevich 7322594e906SNikolay Aleksandrov if (skb_vlan_tag_present(skb)) { 733df8a39deSJiri Pirko *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; 7342594e906SNikolay Aleksandrov } else { 735a37b85c9SVlad Yasevich *vid = 0; 736a37b85c9SVlad Yasevich err = -EINVAL; 737a37b85c9SVlad Yasevich } 738a37b85c9SVlad Yasevich 739a37b85c9SVlad Yasevich return err; 740a37b85c9SVlad Yasevich } 74178851988SVlad Yasevich 74277751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 74378851988SVlad Yasevich { 74477751ee8SNikolay Aleksandrov if (!vg) 7455be5a2dfSVlad Yasevich return 0; 7465be5a2dfSVlad Yasevich 74778851988SVlad Yasevich smp_rmb(); 74877751ee8SNikolay Aleksandrov return vg->pvid; 74978851988SVlad Yasevich } 75078851988SVlad Yasevich 7512796d0c6SVlad Yasevich static inline int br_vlan_enabled(struct net_bridge *br) 7522796d0c6SVlad Yasevich { 7532796d0c6SVlad Yasevich return br->vlan_enabled; 7542796d0c6SVlad Yasevich } 755243a2e63SVlad Yasevich #else 75677751ee8SNikolay Aleksandrov static inline bool br_allowed_ingress(const struct net_bridge *br, 75777751ee8SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 7582594e906SNikolay Aleksandrov struct sk_buff *skb, 7592594e906SNikolay Aleksandrov u16 *vid) 7602594e906SNikolay Aleksandrov { 7612594e906SNikolay Aleksandrov return true; 7622594e906SNikolay Aleksandrov } 7632594e906SNikolay Aleksandrov 7642594e906SNikolay Aleksandrov static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, 76585f46c6bSVlad Yasevich const struct sk_buff *skb) 76685f46c6bSVlad Yasevich { 76785f46c6bSVlad Yasevich return true; 76885f46c6bSVlad Yasevich } 76985f46c6bSVlad Yasevich 770e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 771e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 772e0d7968aSToshiaki Makita { 773e0d7968aSToshiaki Makita return true; 774e0d7968aSToshiaki Makita } 775e0d7968aSToshiaki Makita 77678851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 7772594e906SNikolay Aleksandrov struct net_bridge_vlan_group *vg, 77878851988SVlad Yasevich struct sk_buff *skb) 77978851988SVlad Yasevich { 78078851988SVlad Yasevich return skb; 78178851988SVlad Yasevich } 78278851988SVlad Yasevich 783552406c4SVlad Yasevich static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) 784243a2e63SVlad Yasevich { 785243a2e63SVlad Yasevich return -EOPNOTSUPP; 786243a2e63SVlad Yasevich } 787243a2e63SVlad Yasevich 788243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 789243a2e63SVlad Yasevich { 790243a2e63SVlad Yasevich return -EOPNOTSUPP; 791243a2e63SVlad Yasevich } 792243a2e63SVlad Yasevich 793243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 794243a2e63SVlad Yasevich { 795243a2e63SVlad Yasevich } 796243a2e63SVlad Yasevich 797204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 798204177f3SToshiaki Makita { 799204177f3SToshiaki Makita } 800204177f3SToshiaki Makita 8015be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 8028580e211SToshiaki Makita { 8035be5a2dfSVlad Yasevich return 0; 8048580e211SToshiaki Makita } 8058580e211SToshiaki Makita 806552406c4SVlad Yasevich static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) 807243a2e63SVlad Yasevich { 808243a2e63SVlad Yasevich return -EOPNOTSUPP; 809243a2e63SVlad Yasevich } 810243a2e63SVlad Yasevich 811243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 812243a2e63SVlad Yasevich { 813243a2e63SVlad Yasevich return -EOPNOTSUPP; 814243a2e63SVlad Yasevich } 815243a2e63SVlad Yasevich 816243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 817243a2e63SVlad Yasevich { 818243a2e63SVlad Yasevich } 819243a2e63SVlad Yasevich 8202594e906SNikolay Aleksandrov static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, 8212594e906SNikolay Aleksandrov u16 vid) 822a37b85c9SVlad Yasevich { 823a37b85c9SVlad Yasevich return NULL; 824a37b85c9SVlad Yasevich } 825bc9a25d2SVlad Yasevich 8265be5a2dfSVlad Yasevich static inline int nbp_vlan_init(struct net_bridge_port *port) 8275be5a2dfSVlad Yasevich { 8285be5a2dfSVlad Yasevich return 0; 8295be5a2dfSVlad Yasevich } 8305be5a2dfSVlad Yasevich 83178851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 832a37b85c9SVlad Yasevich { 833a37b85c9SVlad Yasevich return 0; 834a37b85c9SVlad Yasevich } 8352594e906SNikolay Aleksandrov 83677751ee8SNikolay Aleksandrov static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) 83778851988SVlad Yasevich { 8383df6bf45SVlad Yasevich return 0; 83978851988SVlad Yasevich } 8402796d0c6SVlad Yasevich 841d4f0e095SAlexei Starovoitov static inline int br_vlan_enabled(struct net_bridge *br) 8422796d0c6SVlad Yasevich { 8432796d0c6SVlad Yasevich return 0; 8442796d0c6SVlad Yasevich } 845a7854037SNikolay Aleksandrov 846a7854037SNikolay Aleksandrov static inline int __br_vlan_filter_toggle(struct net_bridge *br, 847a7854037SNikolay Aleksandrov unsigned long val) 848a7854037SNikolay Aleksandrov { 849a7854037SNikolay Aleksandrov return -EOPNOTSUPP; 850a7854037SNikolay Aleksandrov } 8512594e906SNikolay Aleksandrov 8522594e906SNikolay Aleksandrov static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, 8532594e906SNikolay Aleksandrov u32 filter_mask) 8542594e906SNikolay Aleksandrov { 8552594e906SNikolay Aleksandrov return 0; 8562594e906SNikolay Aleksandrov } 8572594e906SNikolay Aleksandrov 8582594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group( 8592594e906SNikolay Aleksandrov const struct net_bridge *br) 8602594e906SNikolay Aleksandrov { 8612594e906SNikolay Aleksandrov return NULL; 8622594e906SNikolay Aleksandrov } 8632594e906SNikolay Aleksandrov 8642594e906SNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group( 8652594e906SNikolay Aleksandrov const struct net_bridge_port *p) 8662594e906SNikolay Aleksandrov { 8672594e906SNikolay Aleksandrov return NULL; 8682594e906SNikolay Aleksandrov } 869907b1e6eSNikolay Aleksandrov 870907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *br_vlan_group_rcu( 871907b1e6eSNikolay Aleksandrov const struct net_bridge *br) 872907b1e6eSNikolay Aleksandrov { 873907b1e6eSNikolay Aleksandrov return NULL; 874907b1e6eSNikolay Aleksandrov } 875907b1e6eSNikolay Aleksandrov 876907b1e6eSNikolay Aleksandrov static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( 877907b1e6eSNikolay Aleksandrov const struct net_bridge_port *p) 878907b1e6eSNikolay Aleksandrov { 879907b1e6eSNikolay Aleksandrov return NULL; 880907b1e6eSNikolay Aleksandrov } 881907b1e6eSNikolay Aleksandrov 882243a2e63SVlad Yasevich #endif 883243a2e63SVlad Yasevich 8841a4ba64dSPablo Neira Ayuso struct nf_br_ops { 8851a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 8861a4ba64dSPablo Neira Ayuso }; 8871a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 8881a4ba64dSPablo Neira Ayuso 8891da177e4SLinus Torvalds /* br_netfilter.c */ 89034666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 89134666d46SPablo Neira Ayuso int br_nf_core_init(void); 89234666d46SPablo Neira Ayuso void br_nf_core_fini(void); 893348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 894c0909713SStephen Hemminger #else 89534666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 89634666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 8974adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 898c0909713SStephen Hemminger #endif 8991da177e4SLinus Torvalds 9001da177e4SLinus Torvalds /* br_stp.c */ 901348662a1SJoe Perches void br_log_state(const struct net_bridge_port *p); 902775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 903348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 904348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 905348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 9061da177e4SLinus Torvalds 907348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 908348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 909348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 910348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 911c62987bbSScott Feldman int br_set_ageing_time(struct net_bridge *br, u32 ageing_time); 91214f98f25Sstephen hemminger 91314f98f25Sstephen hemminger 9141da177e4SLinus Torvalds /* br_stp_if.c */ 915348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 916348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 917348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 918348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 919348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 920348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 921348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 922348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 923348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 924348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 925348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 9261da177e4SLinus Torvalds 9271da177e4SLinus Torvalds /* br_stp_bpdu.c */ 9287c85fbf0SPatrick McHardy struct stp_proto; 929348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 9307c85fbf0SPatrick McHardy struct net_device *dev); 9311da177e4SLinus Torvalds 9321da177e4SLinus Torvalds /* br_stp_timer.c */ 933348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 934348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 935348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 9361da177e4SLinus Torvalds 9371da177e4SLinus Torvalds /* br.c */ 938e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 939da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 940da678292SMichał Mirosław #endif 9411da177e4SLinus Torvalds 94211dc1f36SStephen Hemminger /* br_netlink.c */ 943149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 944348662a1SJoe Perches int br_netlink_init(void); 945348662a1SJoe Perches void br_netlink_fini(void); 946348662a1SJoe Perches void br_ifinfo_notify(int event, struct net_bridge_port *port); 947add511b3SRoopa Prabhu int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 948add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 949348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 95046c264daSNicolas Dichtel u32 filter_mask, int nlflags); 95111dc1f36SStephen Hemminger 9521da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 9531da177e4SLinus Torvalds /* br_sysfs_if.c */ 95452cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 955348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 956348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 9571da177e4SLinus Torvalds 9581da177e4SLinus Torvalds /* br_sysfs_br.c */ 959348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 960348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 9611da177e4SLinus Torvalds 9621da177e4SLinus Torvalds #else 9631da177e4SLinus Torvalds 9640cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 9650cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 9660cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 9670cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 9681da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 9691da177e4SLinus Torvalds 9701da177e4SLinus Torvalds #endif 971