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> 231da177e4SLinus Torvalds 241da177e4SLinus Torvalds #define BR_HASH_BITS 8 251da177e4SLinus Torvalds #define BR_HASH_SIZE (1 << BR_HASH_BITS) 261da177e4SLinus Torvalds 271da177e4SLinus Torvalds #define BR_HOLD_TIME (1*HZ) 281da177e4SLinus Torvalds 291da177e4SLinus Torvalds #define BR_PORT_BITS 10 301da177e4SLinus Torvalds #define BR_MAX_PORTS (1<<BR_PORT_BITS) 31243a2e63SVlad Yasevich #define BR_VLAN_BITMAP_LEN BITS_TO_LONGS(VLAN_N_VID) 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 80243a2e63SVlad Yasevich struct net_port_vlans { 81243a2e63SVlad Yasevich u16 port_idx; 8278851988SVlad Yasevich u16 pvid; 83243a2e63SVlad Yasevich union { 84243a2e63SVlad Yasevich struct net_bridge_port *port; 85243a2e63SVlad Yasevich struct net_bridge *br; 86243a2e63SVlad Yasevich } parent; 87243a2e63SVlad Yasevich struct rcu_head rcu; 88243a2e63SVlad Yasevich unsigned long vlan_bitmap[BR_VLAN_BITMAP_LEN]; 8935e03f3aSVlad Yasevich unsigned long untagged_bitmap[BR_VLAN_BITMAP_LEN]; 906cbdceebSVlad Yasevich u16 num_vlans; 91243a2e63SVlad Yasevich }; 92243a2e63SVlad Yasevich 931da177e4SLinus Torvalds struct net_bridge_fdb_entry 941da177e4SLinus Torvalds { 951da177e4SLinus Torvalds struct hlist_node hlist; 961da177e4SLinus Torvalds struct net_bridge_port *dst; 971da177e4SLinus Torvalds 981da177e4SLinus Torvalds struct rcu_head rcu; 997cd8861aSstephen hemminger unsigned long updated; 1007cd8861aSstephen hemminger unsigned long used; 1011da177e4SLinus Torvalds mac_addr addr; 10293859b13SJiri Pirko unsigned char is_local:1, 10393859b13SJiri Pirko is_static:1, 104cf6b8e1eSScott Feldman added_by_user:1, 105cf6b8e1eSScott Feldman added_by_external_learn:1; 1062ba071ecSVlad Yasevich __u16 vlan_id; 1071da177e4SLinus Torvalds }; 1081da177e4SLinus Torvalds 109eb1d1641SHerbert Xu struct net_bridge_port_group { 110eb1d1641SHerbert Xu struct net_bridge_port *port; 111e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 112eb1d1641SHerbert Xu struct hlist_node mglist; 113eb1d1641SHerbert Xu struct rcu_head rcu; 114eb1d1641SHerbert Xu struct timer_list timer; 1158ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 116ccb1c31aSAmerigo Wang unsigned char state; 117eb1d1641SHerbert Xu }; 118eb1d1641SHerbert Xu 119eb1d1641SHerbert Xu struct net_bridge_mdb_entry 120eb1d1641SHerbert Xu { 121eb1d1641SHerbert Xu struct hlist_node hlist[2]; 122eb1d1641SHerbert Xu struct net_bridge *br; 123e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 124eb1d1641SHerbert Xu struct rcu_head rcu; 125eb1d1641SHerbert Xu struct timer_list timer; 1268ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 1278a870178SHerbert Xu bool mglist; 128eb1d1641SHerbert Xu }; 129eb1d1641SHerbert Xu 130eb1d1641SHerbert Xu struct net_bridge_mdb_htable 131eb1d1641SHerbert Xu { 132eb1d1641SHerbert Xu struct hlist_head *mhash; 133eb1d1641SHerbert Xu struct rcu_head rcu; 134eb1d1641SHerbert Xu struct net_bridge_mdb_htable *old; 135eb1d1641SHerbert Xu u32 size; 136eb1d1641SHerbert Xu u32 max; 137eb1d1641SHerbert Xu u32 secret; 138eb1d1641SHerbert Xu u32 ver; 139eb1d1641SHerbert Xu }; 140eb1d1641SHerbert Xu 1411da177e4SLinus Torvalds struct net_bridge_port 1421da177e4SLinus Torvalds { 1431da177e4SLinus Torvalds struct net_bridge *br; 1441da177e4SLinus Torvalds struct net_device *dev; 1451da177e4SLinus Torvalds struct list_head list; 1461da177e4SLinus Torvalds 1471da177e4SLinus Torvalds /* STP */ 1481da177e4SLinus Torvalds u8 priority; 1491da177e4SLinus Torvalds u8 state; 1501da177e4SLinus Torvalds u16 port_no; 1511da177e4SLinus Torvalds unsigned char topology_change_ack; 1521da177e4SLinus Torvalds unsigned char config_pending; 1531da177e4SLinus Torvalds port_id port_id; 1541da177e4SLinus Torvalds port_id designated_port; 1551da177e4SLinus Torvalds bridge_id designated_root; 1561da177e4SLinus Torvalds bridge_id designated_bridge; 1571da177e4SLinus Torvalds u32 path_cost; 1581da177e4SLinus Torvalds u32 designated_cost; 1590c03150eSstephen hemminger unsigned long designated_age; 1601da177e4SLinus Torvalds 1611da177e4SLinus Torvalds struct timer_list forward_delay_timer; 1621da177e4SLinus Torvalds struct timer_list hold_timer; 1631da177e4SLinus Torvalds struct timer_list message_age_timer; 1641da177e4SLinus Torvalds struct kobject kobj; 1651da177e4SLinus Torvalds struct rcu_head rcu; 1663982d3d2SFischer, Anna 1673982d3d2SFischer, Anna unsigned long flags; 168eb1d1641SHerbert Xu 169eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 17090010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 171cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 17290010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 173cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 174eb1d1641SHerbert Xu unsigned char multicast_router; 175eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 176eb1d1641SHerbert Xu struct hlist_head mglist; 177eb1d1641SHerbert Xu struct hlist_node rlist; 178eb1d1641SHerbert Xu #endif 179e0f43752SSimon Arlott 180e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 181e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 182e0f43752SSimon Arlott #endif 18391d2c34aSHerbert Xu 18491d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 18591d2c34aSHerbert Xu struct netpoll *np; 18691d2c34aSHerbert Xu #endif 187243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 188243a2e63SVlad Yasevich struct net_port_vlans __rcu *vlan_info; 189243a2e63SVlad Yasevich #endif 1901da177e4SLinus Torvalds }; 1911da177e4SLinus Torvalds 192e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 193f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 194e028e4b8SVlad Yasevich 195f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 196f350a0a8SJiri Pirko 197b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 198b5ed54e9Sstephen hemminger { 199716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 200b5ed54e9Sstephen hemminger } 201b5ed54e9Sstephen hemminger 2021fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 203b5ed54e9Sstephen hemminger { 204ec1e5610SEric Dumazet return br_port_exists(dev) ? 205ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 206b5ed54e9Sstephen hemminger } 207b5ed54e9Sstephen hemminger 2081da177e4SLinus Torvalds struct net_bridge 2091da177e4SLinus Torvalds { 2101da177e4SLinus Torvalds spinlock_t lock; 2111da177e4SLinus Torvalds struct list_head port_list; 2121da177e4SLinus Torvalds struct net_device *dev; 21314bb4789Sstephen hemminger 2148f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 2151da177e4SLinus Torvalds spinlock_t hash_lock; 2161da177e4SLinus Torvalds struct hlist_head hash[BR_HASH_SIZE]; 21734666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 218efb6de9bSBernhard Thaler union { 2194adf0af6SSimon Wunderlich struct rtable fake_rtable; 220efb6de9bSBernhard Thaler struct rt6_info fake_rt6_info; 221efb6de9bSBernhard Thaler }; 2224df53d8bSPatrick McHardy bool nf_call_iptables; 2234df53d8bSPatrick McHardy bool nf_call_ip6tables; 2244df53d8bSPatrick McHardy bool nf_call_arptables; 2254adf0af6SSimon Wunderlich #endif 226515853ccSstephen hemminger u16 group_fwd_mask; 227f2808d22SToshiaki Makita u16 group_fwd_mask_required; 228515853ccSstephen hemminger 2291da177e4SLinus Torvalds /* STP */ 2301da177e4SLinus Torvalds bridge_id designated_root; 2311da177e4SLinus Torvalds bridge_id bridge_id; 2321da177e4SLinus Torvalds u32 root_path_cost; 2331da177e4SLinus Torvalds unsigned long max_age; 2341da177e4SLinus Torvalds unsigned long hello_time; 2351da177e4SLinus Torvalds unsigned long forward_delay; 2361da177e4SLinus Torvalds unsigned long bridge_max_age; 2371da177e4SLinus Torvalds unsigned long ageing_time; 2381da177e4SLinus Torvalds unsigned long bridge_hello_time; 2391da177e4SLinus Torvalds unsigned long bridge_forward_delay; 2401da177e4SLinus Torvalds 241fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 242204177f3SToshiaki Makita bool group_addr_set; 2431da177e4SLinus Torvalds u16 root_port; 2449cde0708SStephen Hemminger 2459cde0708SStephen Hemminger enum { 2469cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 2479cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 2489cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 2499cde0708SStephen Hemminger } stp_enabled; 2509cde0708SStephen Hemminger 2511da177e4SLinus Torvalds unsigned char topology_change; 2521da177e4SLinus Torvalds unsigned char topology_change_detected; 2531da177e4SLinus Torvalds 254eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 255eb1d1641SHerbert Xu unsigned char multicast_router; 256eb1d1641SHerbert Xu 257eb1d1641SHerbert Xu u8 multicast_disabled:1; 258c5c23260SHerbert Xu u8 multicast_querier:1; 2591c8ad5bfSCong Wang u8 multicast_query_use_ifaddr:1; 260eb1d1641SHerbert Xu 261eb1d1641SHerbert Xu u32 hash_elasticity; 262eb1d1641SHerbert Xu u32 hash_max; 263eb1d1641SHerbert Xu 264eb1d1641SHerbert Xu u32 multicast_last_member_count; 265eb1d1641SHerbert Xu u32 multicast_startup_query_count; 266eb1d1641SHerbert Xu 267eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 268eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 269eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 270eb1d1641SHerbert Xu unsigned long multicast_query_interval; 271eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 272eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 273eb1d1641SHerbert Xu 274eb1d1641SHerbert Xu spinlock_t multicast_lock; 275e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 276eb1d1641SHerbert Xu struct hlist_head router_list; 277eb1d1641SHerbert Xu 278eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 27990010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 28090010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 281dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 282cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 28390010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 28490010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 285dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 286cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 287eb1d1641SHerbert Xu #endif 288eb1d1641SHerbert Xu 2891da177e4SLinus Torvalds struct timer_list hello_timer; 2901da177e4SLinus Torvalds struct timer_list tcn_timer; 2911da177e4SLinus Torvalds struct timer_list topology_change_timer; 2921da177e4SLinus Torvalds struct timer_list gc_timer; 29343b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 294e028e4b8SVlad Yasevich u32 auto_cnt; 295243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 296243a2e63SVlad Yasevich u8 vlan_enabled; 2978580e211SToshiaki Makita __be16 vlan_proto; 29896a20d9dSVlad Yasevich u16 default_pvid; 299243a2e63SVlad Yasevich struct net_port_vlans __rcu *vlan_info; 300243a2e63SVlad Yasevich #endif 3011da177e4SLinus Torvalds }; 3021da177e4SLinus Torvalds 30368b7c895SHerbert Xu struct br_input_skb_cb { 30468b7c895SHerbert Xu struct net_device *brdev; 30593fdd47eSHerbert Xu 30632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 307eb1d1641SHerbert Xu int igmp; 308eb1d1641SHerbert Xu int mrouters_only; 30932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 31093fdd47eSHerbert Xu 311842a9ae0SJouni Malinen bool proxyarp_replied; 31293fdd47eSHerbert Xu 31320adfa1aSVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 31420adfa1aSVlad Yasevich bool vlan_filtered; 31520adfa1aSVlad Yasevich #endif 31668b7c895SHerbert Xu }; 31768b7c895SHerbert Xu 31868b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 31968b7c895SHerbert Xu 32032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 32132dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 32232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 32332dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 32432dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 32532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 32628a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 32728a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 32828a16c97Sstephen hemminger 32928a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 33028a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 33128a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 33228a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 33328a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 33428a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 33528a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 33628a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 33728a16c97Sstephen hemminger 33828a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 33928a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 34028a16c97Sstephen hemminger 3411da177e4SLinus Torvalds /* called under bridge lock */ 3421da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 3431da177e4SLinus Torvalds { 3441da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 3451da177e4SLinus Torvalds } 3461da177e4SLinus Torvalds 3471da177e4SLinus Torvalds /* br_device.c */ 348348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 349348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 350348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 351cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 35291d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 35391d2c34aSHerbert Xu struct sk_buff *skb) 35491d2c34aSHerbert Xu { 35591d2c34aSHerbert Xu struct netpoll *np = p->np; 35691d2c34aSHerbert Xu 35791d2c34aSHerbert Xu if (np) 35891d2c34aSHerbert Xu netpoll_send_skb(np, skb); 35991d2c34aSHerbert Xu } 36091d2c34aSHerbert Xu 361a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 362348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 36391d2c34aSHerbert Xu #else 3649f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 36591d2c34aSHerbert Xu struct sk_buff *skb) 36691d2c34aSHerbert Xu { 36791d2c34aSHerbert Xu } 36891d2c34aSHerbert Xu 369a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 37091d2c34aSHerbert Xu { 37191d2c34aSHerbert Xu return 0; 37291d2c34aSHerbert Xu } 37391d2c34aSHerbert Xu 37491d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 37591d2c34aSHerbert Xu { 37691d2c34aSHerbert Xu } 377cfb478daSstephen hemminger #endif 3781da177e4SLinus Torvalds 3791da177e4SLinus Torvalds /* br_fdb.c */ 380348662a1SJoe Perches int br_fdb_init(void); 381348662a1SJoe Perches void br_fdb_fini(void); 382348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 383424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 384424bb9c9SToshiaki Makita const struct net_bridge_port *p, 385424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 386348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 387348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 388348662a1SJoe Perches void br_fdb_cleanup(unsigned long arg); 389348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 3901ea2d020SNikolay Aleksandrov const struct net_bridge_port *p, u16 vid, int do_all); 391348662a1SJoe Perches struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, 392348662a1SJoe Perches const unsigned char *addr, __u16 vid); 393348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 394348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 395348662a1SJoe Perches unsigned long off); 396348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 397348662a1SJoe Perches const unsigned char *addr, u16 vid); 398348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 399a5642ab4SToshiaki Makita const unsigned char *addr, u16 vid, bool added_by_user); 40077162022SJohn Fastabend 401348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 402f6f6424bSJiri Pirko struct net_device *dev, const unsigned char *addr, u16 vid); 403348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 404f6f6424bSJiri Pirko const unsigned char *addr, u16 vid, u16 nlh_flags); 405348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 4065d5eacb3SJamal Hadi Salim struct net_device *dev, struct net_device *fdev, int idx); 4078db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 4088db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 4093aeb6617SJiri Pirko int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, 4103aeb6617SJiri Pirko const unsigned char *addr, u16 vid); 4113aeb6617SJiri Pirko int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, 4123aeb6617SJiri Pirko const unsigned char *addr, u16 vid); 4131da177e4SLinus Torvalds 4141da177e4SLinus Torvalds /* br_forward.c */ 415348662a1SJoe Perches void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb); 4167026b1ddSDavid Miller int br_dev_queue_push_xmit(struct sock *sk, struct sk_buff *skb); 417348662a1SJoe Perches void br_forward(const struct net_bridge_port *to, 4187f7708f0SMichael Braun struct sk_buff *skb, struct sk_buff *skb0); 4197026b1ddSDavid Miller int br_forward_finish(struct sock *sk, struct sk_buff *skb); 420348662a1SJoe Perches void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast); 421348662a1SJoe Perches void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, 422867a5943SVlad Yasevich struct sk_buff *skb2, bool unicast); 4231da177e4SLinus Torvalds 4241da177e4SLinus Torvalds /* br_if.c */ 425348662a1SJoe Perches void br_port_carrier_check(struct net_bridge_port *p); 426348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 427348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 428348662a1SJoe Perches int br_add_if(struct net_bridge *br, struct net_device *dev); 429348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 430348662a1SJoe Perches int br_min_mtu(const struct net_bridge *br); 431348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 432c8f44affSMichał Mirosław netdev_features_t features); 433e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 4342796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 4351da177e4SLinus Torvalds 4361da177e4SLinus Torvalds /* br_input.c */ 4377026b1ddSDavid Miller int br_handle_frame_finish(struct sock *sk, struct sk_buff *skb); 438348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 4391da177e4SLinus Torvalds 440859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 441859828c0SJiri Pirko { 442859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 443859828c0SJiri Pirko } 444859828c0SJiri Pirko 445859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 446859828c0SJiri Pirko { 447859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 448859828c0SJiri Pirko } 449859828c0SJiri Pirko 4501da177e4SLinus Torvalds /* br_ioctl.c */ 451348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 452348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 453348662a1SJoe Perches void __user *arg); 4541da177e4SLinus Torvalds 455eb1d1641SHerbert Xu /* br_multicast.c */ 456eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 4572ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 458348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 459fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 460348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 461eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 462348662a1SJoe Perches void br_multicast_add_port(struct net_bridge_port *port); 463348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 464348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 465348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 466348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 467348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 468348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 469348662a1SJoe Perches void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 4705cb5e947SHerbert Xu struct sk_buff *skb); 471348662a1SJoe Perches void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 4725cb5e947SHerbert Xu struct sk_buff *skb, struct sk_buff *skb2); 473348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 474348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 475348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 476348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 477348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 478348662a1SJoe Perches struct net_bridge_mdb_entry * 479348662a1SJoe Perches br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); 480348662a1SJoe Perches struct net_bridge_mdb_entry * 481348662a1SJoe Perches br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, 482348662a1SJoe Perches struct br_ip *group); 483348662a1SJoe Perches void br_multicast_free_pg(struct rcu_head *head); 484348662a1SJoe Perches struct net_bridge_port_group * 485348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 486762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 487ccb1c31aSAmerigo Wang unsigned char state); 488348662a1SJoe Perches void br_mdb_init(void); 489348662a1SJoe Perches void br_mdb_uninit(void); 490348662a1SJoe Perches void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 49137a393bcSCong Wang struct br_ip *group, int type); 49285b35269SSridhar Samudrala 493cfd56754SCong Wang #define mlock_dereference(X, br) \ 494cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 495cfd56754SCong Wang 49685b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 49785b35269SSridhar Samudrala { 49885b35269SSridhar Samudrala return br->multicast_router == 2 || 49985b35269SSridhar Samudrala (br->multicast_router == 1 && 50085b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 50185b35269SSridhar Samudrala } 502b00589afSLinus Lüssing 503cc0fdd80SLinus Lüssing static inline bool 504cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 50590010b36SLinus Lüssing struct bridge_mcast_other_query *querier) 506b00589afSLinus Lüssing { 507cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 508cc0fdd80SLinus Lüssing (br->multicast_querier || timer_pending(&querier->timer)); 509cc0fdd80SLinus Lüssing } 510cc0fdd80SLinus Lüssing 511cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 512cc0fdd80SLinus Lüssing struct ethhdr *eth) 513cc0fdd80SLinus Lüssing { 514cc0fdd80SLinus Lüssing switch (eth->h_proto) { 515cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 51690010b36SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip4_other_query); 517cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 518cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 51990010b36SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip6_other_query); 520cc0fdd80SLinus Lüssing #endif 521cc0fdd80SLinus Lüssing default: 522cc0fdd80SLinus Lüssing return false; 523cc0fdd80SLinus Lüssing } 524b00589afSLinus Lüssing } 525eb1d1641SHerbert Xu #else 526eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 527eb1d1641SHerbert Xu struct net_bridge_port *port, 52806499098SVlad Yasevich struct sk_buff *skb, 52906499098SVlad Yasevich u16 vid) 530eb1d1641SHerbert Xu { 531eb1d1641SHerbert Xu return 0; 532eb1d1641SHerbert Xu } 533eb1d1641SHerbert Xu 534eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 535fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 536eb1d1641SHerbert Xu { 537eb1d1641SHerbert Xu return NULL; 538eb1d1641SHerbert Xu } 539eb1d1641SHerbert Xu 540eb1d1641SHerbert Xu static inline void br_multicast_add_port(struct net_bridge_port *port) 541eb1d1641SHerbert Xu { 542eb1d1641SHerbert Xu } 543eb1d1641SHerbert Xu 544eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 545eb1d1641SHerbert Xu { 546eb1d1641SHerbert Xu } 547eb1d1641SHerbert Xu 548eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 549eb1d1641SHerbert Xu { 550eb1d1641SHerbert Xu } 551eb1d1641SHerbert Xu 552eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 553eb1d1641SHerbert Xu { 554eb1d1641SHerbert Xu } 555eb1d1641SHerbert Xu 556eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 557eb1d1641SHerbert Xu { 558eb1d1641SHerbert Xu } 559eb1d1641SHerbert Xu 560eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 561eb1d1641SHerbert Xu { 562eb1d1641SHerbert Xu } 563eb1d1641SHerbert Xu 564eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 565eb1d1641SHerbert Xu { 566eb1d1641SHerbert Xu } 5675cb5e947SHerbert Xu 5685cb5e947SHerbert Xu static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 5695cb5e947SHerbert Xu struct sk_buff *skb) 5705cb5e947SHerbert Xu { 5715cb5e947SHerbert Xu } 5725cb5e947SHerbert Xu 5735cb5e947SHerbert Xu static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 5745cb5e947SHerbert Xu struct sk_buff *skb, 5755cb5e947SHerbert Xu struct sk_buff *skb2) 5765cb5e947SHerbert Xu { 5775cb5e947SHerbert Xu } 578eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 579eb1d1641SHerbert Xu { 58085b35269SSridhar Samudrala return 0; 581eb1d1641SHerbert Xu } 582cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 583cc0fdd80SLinus Lüssing struct ethhdr *eth) 584b00589afSLinus Lüssing { 585b00589afSLinus Lüssing return false; 586b00589afSLinus Lüssing } 587fdb184d1SRami Rosen static inline void br_mdb_init(void) 588fdb184d1SRami Rosen { 589fdb184d1SRami Rosen } 590fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 591fdb184d1SRami Rosen { 592fdb184d1SRami Rosen } 59385b35269SSridhar Samudrala #endif 594eb1d1641SHerbert Xu 595243a2e63SVlad Yasevich /* br_vlan.c */ 596243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 597348662a1SJoe Perches bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v, 59878851988SVlad Yasevich struct sk_buff *skb, u16 *vid); 599348662a1SJoe Perches bool br_allowed_egress(struct net_bridge *br, const struct net_port_vlans *v, 60085f46c6bSVlad Yasevich const struct sk_buff *skb); 601e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 602348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 60378851988SVlad Yasevich const struct net_port_vlans *v, 60478851988SVlad Yasevich struct sk_buff *skb); 605348662a1SJoe Perches int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); 606348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 607348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 6082b292fb4SToshiaki Makita bool br_vlan_find(struct net_bridge *br, u16 vid); 609204177f3SToshiaki Makita void br_recalculate_fwd_mask(struct net_bridge *br); 610348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 611204177f3SToshiaki Makita int br_vlan_set_proto(struct net_bridge *br, unsigned long val); 6125be5a2dfSVlad Yasevich int br_vlan_init(struct net_bridge *br); 61396a20d9dSVlad Yasevich int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); 614348662a1SJoe Perches int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); 615348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 616348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 617348662a1SJoe Perches bool nbp_vlan_find(struct net_bridge_port *port, u16 vid); 6185be5a2dfSVlad Yasevich int nbp_vlan_init(struct net_bridge_port *port); 619a37b85c9SVlad Yasevich 620a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 621a37b85c9SVlad Yasevich const struct net_bridge *br) 622a37b85c9SVlad Yasevich { 6231690be63SVlad Yasevich return rcu_dereference_rtnl(br->vlan_info); 624a37b85c9SVlad Yasevich } 625a37b85c9SVlad Yasevich 626a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 627a37b85c9SVlad Yasevich const struct net_bridge_port *p) 628a37b85c9SVlad Yasevich { 6291690be63SVlad Yasevich return rcu_dereference_rtnl(p->vlan_info); 630a37b85c9SVlad Yasevich } 631a37b85c9SVlad Yasevich 632a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 633a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 634a37b85c9SVlad Yasevich */ 635a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 636a37b85c9SVlad Yasevich { 637a37b85c9SVlad Yasevich int err = 0; 638a37b85c9SVlad Yasevich 639df8a39deSJiri Pirko if (skb_vlan_tag_present(skb)) 640df8a39deSJiri Pirko *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; 641a37b85c9SVlad Yasevich else { 642a37b85c9SVlad Yasevich *vid = 0; 643a37b85c9SVlad Yasevich err = -EINVAL; 644a37b85c9SVlad Yasevich } 645a37b85c9SVlad Yasevich 646a37b85c9SVlad Yasevich return err; 647a37b85c9SVlad Yasevich } 64878851988SVlad Yasevich 64978851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 65078851988SVlad Yasevich { 6515be5a2dfSVlad Yasevich if (!v) 6525be5a2dfSVlad Yasevich return 0; 6535be5a2dfSVlad Yasevich 65478851988SVlad Yasevich smp_rmb(); 6553df6bf45SVlad Yasevich return v->pvid; 65678851988SVlad Yasevich } 65778851988SVlad Yasevich 6582796d0c6SVlad Yasevich static inline int br_vlan_enabled(struct net_bridge *br) 6592796d0c6SVlad Yasevich { 6602796d0c6SVlad Yasevich return br->vlan_enabled; 6612796d0c6SVlad Yasevich } 662243a2e63SVlad Yasevich #else 663a37b85c9SVlad Yasevich static inline bool br_allowed_ingress(struct net_bridge *br, 664a37b85c9SVlad Yasevich struct net_port_vlans *v, 66578851988SVlad Yasevich struct sk_buff *skb, 66678851988SVlad Yasevich u16 *vid) 667a37b85c9SVlad Yasevich { 668a37b85c9SVlad Yasevich return true; 669a37b85c9SVlad Yasevich } 670a37b85c9SVlad Yasevich 67185f46c6bSVlad Yasevich static inline bool br_allowed_egress(struct net_bridge *br, 67285f46c6bSVlad Yasevich const struct net_port_vlans *v, 67385f46c6bSVlad Yasevich const struct sk_buff *skb) 67485f46c6bSVlad Yasevich { 67585f46c6bSVlad Yasevich return true; 67685f46c6bSVlad Yasevich } 67785f46c6bSVlad Yasevich 678e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 679e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 680e0d7968aSToshiaki Makita { 681e0d7968aSToshiaki Makita return true; 682e0d7968aSToshiaki Makita } 683e0d7968aSToshiaki Makita 68478851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 68578851988SVlad Yasevich const struct net_port_vlans *v, 68678851988SVlad Yasevich struct sk_buff *skb) 68778851988SVlad Yasevich { 68878851988SVlad Yasevich return skb; 68978851988SVlad Yasevich } 69078851988SVlad Yasevich 691552406c4SVlad Yasevich static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) 692243a2e63SVlad Yasevich { 693243a2e63SVlad Yasevich return -EOPNOTSUPP; 694243a2e63SVlad Yasevich } 695243a2e63SVlad Yasevich 696243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 697243a2e63SVlad Yasevich { 698243a2e63SVlad Yasevich return -EOPNOTSUPP; 699243a2e63SVlad Yasevich } 700243a2e63SVlad Yasevich 701243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 702243a2e63SVlad Yasevich { 703243a2e63SVlad Yasevich } 704243a2e63SVlad Yasevich 7052b292fb4SToshiaki Makita static inline bool br_vlan_find(struct net_bridge *br, u16 vid) 7062b292fb4SToshiaki Makita { 7072b292fb4SToshiaki Makita return false; 7082b292fb4SToshiaki Makita } 7092b292fb4SToshiaki Makita 710204177f3SToshiaki Makita static inline void br_recalculate_fwd_mask(struct net_bridge *br) 711204177f3SToshiaki Makita { 712204177f3SToshiaki Makita } 713204177f3SToshiaki Makita 7145be5a2dfSVlad Yasevich static inline int br_vlan_init(struct net_bridge *br) 7158580e211SToshiaki Makita { 7165be5a2dfSVlad Yasevich return 0; 7178580e211SToshiaki Makita } 7188580e211SToshiaki Makita 719552406c4SVlad Yasevich static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) 720243a2e63SVlad Yasevich { 721243a2e63SVlad Yasevich return -EOPNOTSUPP; 722243a2e63SVlad Yasevich } 723243a2e63SVlad Yasevich 724243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 725243a2e63SVlad Yasevich { 726243a2e63SVlad Yasevich return -EOPNOTSUPP; 727243a2e63SVlad Yasevich } 728243a2e63SVlad Yasevich 729243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 730243a2e63SVlad Yasevich { 731243a2e63SVlad Yasevich } 732243a2e63SVlad Yasevich 733a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 734a37b85c9SVlad Yasevich const struct net_bridge *br) 735a37b85c9SVlad Yasevich { 736a37b85c9SVlad Yasevich return NULL; 737a37b85c9SVlad Yasevich } 738a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 739a37b85c9SVlad Yasevich const struct net_bridge_port *p) 740a37b85c9SVlad Yasevich { 741a37b85c9SVlad Yasevich return NULL; 742a37b85c9SVlad Yasevich } 743a37b85c9SVlad Yasevich 744bc9a25d2SVlad Yasevich static inline bool nbp_vlan_find(struct net_bridge_port *port, u16 vid) 745bc9a25d2SVlad Yasevich { 746bc9a25d2SVlad Yasevich return false; 747bc9a25d2SVlad Yasevich } 748bc9a25d2SVlad Yasevich 7495be5a2dfSVlad Yasevich static inline int nbp_vlan_init(struct net_bridge_port *port) 7505be5a2dfSVlad Yasevich { 7515be5a2dfSVlad Yasevich return 0; 7525be5a2dfSVlad Yasevich } 7535be5a2dfSVlad Yasevich 75478851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 755a37b85c9SVlad Yasevich { 756a37b85c9SVlad Yasevich return 0; 757a37b85c9SVlad Yasevich } 75878851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 75978851988SVlad Yasevich { 7603df6bf45SVlad Yasevich return 0; 76178851988SVlad Yasevich } 7622796d0c6SVlad Yasevich 763d4f0e095SAlexei Starovoitov static inline int br_vlan_enabled(struct net_bridge *br) 7642796d0c6SVlad Yasevich { 7652796d0c6SVlad Yasevich return 0; 7662796d0c6SVlad Yasevich } 767243a2e63SVlad Yasevich #endif 768243a2e63SVlad Yasevich 7691a4ba64dSPablo Neira Ayuso struct nf_br_ops { 7701a4ba64dSPablo Neira Ayuso int (*br_dev_xmit_hook)(struct sk_buff *skb); 7711a4ba64dSPablo Neira Ayuso }; 7721a4ba64dSPablo Neira Ayuso extern const struct nf_br_ops __rcu *nf_br_ops; 7731a4ba64dSPablo Neira Ayuso 7741da177e4SLinus Torvalds /* br_netfilter.c */ 77534666d46SPablo Neira Ayuso #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) 77634666d46SPablo Neira Ayuso int br_nf_core_init(void); 77734666d46SPablo Neira Ayuso void br_nf_core_fini(void); 778348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 779c0909713SStephen Hemminger #else 78034666d46SPablo Neira Ayuso static inline int br_nf_core_init(void) { return 0; } 78134666d46SPablo Neira Ayuso static inline void br_nf_core_fini(void) {} 7824adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 783c0909713SStephen Hemminger #endif 7841da177e4SLinus Torvalds 7851da177e4SLinus Torvalds /* br_stp.c */ 786348662a1SJoe Perches void br_log_state(const struct net_bridge_port *p); 787775dd692SFlorian Fainelli void br_set_state(struct net_bridge_port *p, unsigned int state); 788348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 789348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 790348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 7911da177e4SLinus Torvalds 792348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 793348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 794348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 795348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 79614f98f25Sstephen hemminger 79714f98f25Sstephen hemminger 7981da177e4SLinus Torvalds /* br_stp_if.c */ 799348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 800348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 801348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 802348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 803348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 804348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 805348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 806348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 807348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 808348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 809348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 8101da177e4SLinus Torvalds 8111da177e4SLinus Torvalds /* br_stp_bpdu.c */ 8127c85fbf0SPatrick McHardy struct stp_proto; 813348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 8147c85fbf0SPatrick McHardy struct net_device *dev); 8151da177e4SLinus Torvalds 8161da177e4SLinus Torvalds /* br_stp_timer.c */ 817348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 818348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 819348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 8201da177e4SLinus Torvalds 8211da177e4SLinus Torvalds /* br.c */ 822e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 823da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 824da678292SMichał Mirosław #endif 8251da177e4SLinus Torvalds 82611dc1f36SStephen Hemminger /* br_netlink.c */ 827149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 828348662a1SJoe Perches int br_netlink_init(void); 829348662a1SJoe Perches void br_netlink_fini(void); 830348662a1SJoe Perches void br_ifinfo_notify(int event, struct net_bridge_port *port); 831add511b3SRoopa Prabhu int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 832add511b3SRoopa Prabhu int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); 833348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 83446c264daSNicolas Dichtel u32 filter_mask, int nlflags); 83511dc1f36SStephen Hemminger 8361da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 8371da177e4SLinus Torvalds /* br_sysfs_if.c */ 83852cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 839348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 840348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 8411da177e4SLinus Torvalds 8421da177e4SLinus Torvalds /* br_sysfs_br.c */ 843348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 844348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 8451da177e4SLinus Torvalds 8461da177e4SLinus Torvalds #else 8471da177e4SLinus Torvalds 8480cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 8490cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 8500cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 8510cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 8521da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 8531da177e4SLinus Torvalds 8541da177e4SLinus Torvalds #endif 855