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> 21243a2e63SVlad Yasevich #include <linux/if_vlan.h> 221da177e4SLinus Torvalds 231da177e4SLinus Torvalds #define BR_HASH_BITS 8 241da177e4SLinus Torvalds #define BR_HASH_SIZE (1 << BR_HASH_BITS) 251da177e4SLinus Torvalds 261da177e4SLinus Torvalds #define BR_HOLD_TIME (1*HZ) 271da177e4SLinus Torvalds 281da177e4SLinus Torvalds #define BR_PORT_BITS 10 291da177e4SLinus Torvalds #define BR_MAX_PORTS (1<<BR_PORT_BITS) 30243a2e63SVlad Yasevich #define BR_VLAN_BITMAP_LEN BITS_TO_LONGS(VLAN_N_VID) 311da177e4SLinus Torvalds 329cde0708SStephen Hemminger #define BR_VERSION "2.3" 339cde0708SStephen Hemminger 34515853ccSstephen hemminger /* Control of forwarding link local multicast */ 35515853ccSstephen hemminger #define BR_GROUPFWD_DEFAULT 0 36515853ccSstephen hemminger /* Don't allow forwarding control protocols like STP and LLDP */ 37515853ccSstephen hemminger #define BR_GROUPFWD_RESTRICTED 0x4007u 38515853ccSstephen hemminger 399cde0708SStephen Hemminger /* Path to usermode spanning tree program */ 409cde0708SStephen Hemminger #define BR_STP_PROG "/sbin/bridge-stp" 418cbb512eSStephen Hemminger 421da177e4SLinus Torvalds typedef struct bridge_id bridge_id; 431da177e4SLinus Torvalds typedef struct mac_addr mac_addr; 441da177e4SLinus Torvalds typedef __u16 port_id; 451da177e4SLinus Torvalds 461da177e4SLinus Torvalds struct bridge_id 471da177e4SLinus Torvalds { 481da177e4SLinus Torvalds unsigned char prio[2]; 491da177e4SLinus Torvalds unsigned char addr[6]; 501da177e4SLinus Torvalds }; 511da177e4SLinus Torvalds 521da177e4SLinus Torvalds struct mac_addr 531da177e4SLinus Torvalds { 541da177e4SLinus Torvalds unsigned char addr[6]; 551da177e4SLinus Torvalds }; 561da177e4SLinus Torvalds 578ef2a9a5SYOSHIFUJI Hideaki struct br_ip 588ef2a9a5SYOSHIFUJI Hideaki { 598ef2a9a5SYOSHIFUJI Hideaki union { 608ef2a9a5SYOSHIFUJI Hideaki __be32 ip4; 61dfd56b8bSEric Dumazet #if IS_ENABLED(CONFIG_IPV6) 6208b202b6SYOSHIFUJI Hideaki struct in6_addr ip6; 6308b202b6SYOSHIFUJI Hideaki #endif 648ef2a9a5SYOSHIFUJI Hideaki } u; 658ef2a9a5SYOSHIFUJI Hideaki __be16 proto; 66b0e9a30dSVlad Yasevich __u16 vid; 678ef2a9a5SYOSHIFUJI Hideaki }; 688ef2a9a5SYOSHIFUJI Hideaki 69cc0fdd80SLinus Lüssing #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 70cc0fdd80SLinus Lüssing /* our own querier */ 71cc0fdd80SLinus Lüssing struct bridge_mcast_query { 72cc0fdd80SLinus Lüssing struct timer_list timer; 73cc0fdd80SLinus Lüssing u32 startup_sent; 74cc0fdd80SLinus Lüssing }; 75cc0fdd80SLinus Lüssing 76cc0fdd80SLinus Lüssing /* other querier */ 77cc0fdd80SLinus Lüssing struct bridge_mcast_querier { 78cc0fdd80SLinus Lüssing struct timer_list timer; 79cc0fdd80SLinus Lüssing unsigned long delay_time; 80cc0fdd80SLinus Lüssing }; 81cc0fdd80SLinus Lüssing #endif 82cc0fdd80SLinus Lüssing 83243a2e63SVlad Yasevich struct net_port_vlans { 84243a2e63SVlad Yasevich u16 port_idx; 8578851988SVlad Yasevich u16 pvid; 86243a2e63SVlad Yasevich union { 87243a2e63SVlad Yasevich struct net_bridge_port *port; 88243a2e63SVlad Yasevich struct net_bridge *br; 89243a2e63SVlad Yasevich } parent; 90243a2e63SVlad Yasevich struct rcu_head rcu; 91243a2e63SVlad Yasevich unsigned long vlan_bitmap[BR_VLAN_BITMAP_LEN]; 9235e03f3aSVlad Yasevich unsigned long untagged_bitmap[BR_VLAN_BITMAP_LEN]; 936cbdceebSVlad Yasevich u16 num_vlans; 94243a2e63SVlad Yasevich }; 95243a2e63SVlad Yasevich 961da177e4SLinus Torvalds struct net_bridge_fdb_entry 971da177e4SLinus Torvalds { 981da177e4SLinus Torvalds struct hlist_node hlist; 991da177e4SLinus Torvalds struct net_bridge_port *dst; 1001da177e4SLinus Torvalds 1011da177e4SLinus Torvalds struct rcu_head rcu; 1027cd8861aSstephen hemminger unsigned long updated; 1037cd8861aSstephen hemminger unsigned long used; 1041da177e4SLinus Torvalds mac_addr addr; 1051da177e4SLinus Torvalds unsigned char is_local; 1061da177e4SLinus Torvalds unsigned char is_static; 1072ba071ecSVlad Yasevich __u16 vlan_id; 1081da177e4SLinus Torvalds }; 1091da177e4SLinus Torvalds 110eb1d1641SHerbert Xu struct net_bridge_port_group { 111eb1d1641SHerbert Xu struct net_bridge_port *port; 112e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 113eb1d1641SHerbert Xu struct hlist_node mglist; 114eb1d1641SHerbert Xu struct rcu_head rcu; 115eb1d1641SHerbert Xu struct timer_list timer; 1168ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 117ccb1c31aSAmerigo Wang unsigned char state; 118eb1d1641SHerbert Xu }; 119eb1d1641SHerbert Xu 120eb1d1641SHerbert Xu struct net_bridge_mdb_entry 121eb1d1641SHerbert Xu { 122eb1d1641SHerbert Xu struct hlist_node hlist[2]; 123eb1d1641SHerbert Xu struct net_bridge *br; 124e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 125eb1d1641SHerbert Xu struct rcu_head rcu; 126eb1d1641SHerbert Xu struct timer_list timer; 1278ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 1288a870178SHerbert Xu bool mglist; 1299f00b2e7SCong Wang bool timer_armed; 130eb1d1641SHerbert Xu }; 131eb1d1641SHerbert Xu 132eb1d1641SHerbert Xu struct net_bridge_mdb_htable 133eb1d1641SHerbert Xu { 134eb1d1641SHerbert Xu struct hlist_head *mhash; 135eb1d1641SHerbert Xu struct rcu_head rcu; 136eb1d1641SHerbert Xu struct net_bridge_mdb_htable *old; 137eb1d1641SHerbert Xu u32 size; 138eb1d1641SHerbert Xu u32 max; 139eb1d1641SHerbert Xu u32 secret; 140eb1d1641SHerbert Xu u32 ver; 141eb1d1641SHerbert Xu }; 142eb1d1641SHerbert Xu 1431da177e4SLinus Torvalds struct net_bridge_port 1441da177e4SLinus Torvalds { 1451da177e4SLinus Torvalds struct net_bridge *br; 1461da177e4SLinus Torvalds struct net_device *dev; 1471da177e4SLinus Torvalds struct list_head list; 1481da177e4SLinus Torvalds 1491da177e4SLinus Torvalds /* STP */ 1501da177e4SLinus Torvalds u8 priority; 1511da177e4SLinus Torvalds u8 state; 1521da177e4SLinus Torvalds u16 port_no; 1531da177e4SLinus Torvalds unsigned char topology_change_ack; 1541da177e4SLinus Torvalds unsigned char config_pending; 1551da177e4SLinus Torvalds port_id port_id; 1561da177e4SLinus Torvalds port_id designated_port; 1571da177e4SLinus Torvalds bridge_id designated_root; 1581da177e4SLinus Torvalds bridge_id designated_bridge; 1591da177e4SLinus Torvalds u32 path_cost; 1601da177e4SLinus Torvalds u32 designated_cost; 1610c03150eSstephen hemminger unsigned long designated_age; 1621da177e4SLinus Torvalds 1631da177e4SLinus Torvalds struct timer_list forward_delay_timer; 1641da177e4SLinus Torvalds struct timer_list hold_timer; 1651da177e4SLinus Torvalds struct timer_list message_age_timer; 1661da177e4SLinus Torvalds struct kobject kobj; 1671da177e4SLinus Torvalds struct rcu_head rcu; 1683982d3d2SFischer, Anna 1693982d3d2SFischer, Anna unsigned long flags; 1703982d3d2SFischer, Anna #define BR_HAIRPIN_MODE 0x00000001 171a2e01a65Sstephen hemminger #define BR_BPDU_GUARD 0x00000002 1721007dd1aSstephen hemminger #define BR_ROOT_BLOCK 0x00000004 173c2d3babfSDavid S. Miller #define BR_MULTICAST_FAST_LEAVE 0x00000008 1748f3359bdSstephen hemminger #define BR_ADMIN_COST 0x00000010 1759ba18891SVlad Yasevich #define BR_LEARNING 0x00000020 176867a5943SVlad Yasevich #define BR_FLOOD 0x00000040 177eb1d1641SHerbert Xu 178eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 179cc0fdd80SLinus Lüssing struct bridge_mcast_query ip4_query; 180cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 181cc0fdd80SLinus Lüssing struct bridge_mcast_query ip6_query; 182cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 183eb1d1641SHerbert Xu unsigned char multicast_router; 184eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 185eb1d1641SHerbert Xu struct hlist_head mglist; 186eb1d1641SHerbert Xu struct hlist_node rlist; 187eb1d1641SHerbert Xu #endif 188e0f43752SSimon Arlott 189e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 190e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 191e0f43752SSimon Arlott #endif 19291d2c34aSHerbert Xu 19391d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 19491d2c34aSHerbert Xu struct netpoll *np; 19591d2c34aSHerbert Xu #endif 196243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 197243a2e63SVlad Yasevich struct net_port_vlans __rcu *vlan_info; 198243a2e63SVlad Yasevich #endif 1991da177e4SLinus Torvalds }; 2001da177e4SLinus Torvalds 201f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 202f350a0a8SJiri Pirko 203b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 204b5ed54e9Sstephen hemminger { 2052469ffd7SJohn Fastabend struct net_bridge_port *port = 2062469ffd7SJohn Fastabend rcu_dereference_rtnl(dev->rx_handler_data); 2072469ffd7SJohn Fastabend 208b5ed54e9Sstephen hemminger return br_port_exists(dev) ? port : NULL; 209b5ed54e9Sstephen hemminger } 210b5ed54e9Sstephen hemminger 211ec1e5610SEric Dumazet static inline struct net_bridge_port *br_port_get_rtnl(struct net_device *dev) 212b5ed54e9Sstephen hemminger { 213ec1e5610SEric Dumazet return br_port_exists(dev) ? 214ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 215b5ed54e9Sstephen hemminger } 216b5ed54e9Sstephen hemminger 2170eae88f3SEric Dumazet struct br_cpu_netstats { 218406818ffSEric Dumazet u64 rx_packets; 219406818ffSEric Dumazet u64 rx_bytes; 220406818ffSEric Dumazet u64 tx_packets; 221406818ffSEric Dumazet u64 tx_bytes; 222406818ffSEric Dumazet struct u64_stats_sync syncp; 2230eae88f3SEric Dumazet }; 2240eae88f3SEric Dumazet 2251da177e4SLinus Torvalds struct net_bridge 2261da177e4SLinus Torvalds { 2271da177e4SLinus Torvalds spinlock_t lock; 2281da177e4SLinus Torvalds struct list_head port_list; 2291da177e4SLinus Torvalds struct net_device *dev; 23014bb4789Sstephen hemminger 2310eae88f3SEric Dumazet struct br_cpu_netstats __percpu *stats; 2321da177e4SLinus Torvalds spinlock_t hash_lock; 2331da177e4SLinus Torvalds struct hlist_head hash[BR_HASH_SIZE]; 2344adf0af6SSimon Wunderlich #ifdef CONFIG_BRIDGE_NETFILTER 2354adf0af6SSimon Wunderlich struct rtable fake_rtable; 2364df53d8bSPatrick McHardy bool nf_call_iptables; 2374df53d8bSPatrick McHardy bool nf_call_ip6tables; 2384df53d8bSPatrick McHardy bool nf_call_arptables; 2394adf0af6SSimon Wunderlich #endif 240515853ccSstephen hemminger u16 group_fwd_mask; 241515853ccSstephen hemminger 2421da177e4SLinus Torvalds /* STP */ 2431da177e4SLinus Torvalds bridge_id designated_root; 2441da177e4SLinus Torvalds bridge_id bridge_id; 2451da177e4SLinus Torvalds u32 root_path_cost; 2461da177e4SLinus Torvalds unsigned long max_age; 2471da177e4SLinus Torvalds unsigned long hello_time; 2481da177e4SLinus Torvalds unsigned long forward_delay; 2491da177e4SLinus Torvalds unsigned long bridge_max_age; 2501da177e4SLinus Torvalds unsigned long ageing_time; 2511da177e4SLinus Torvalds unsigned long bridge_hello_time; 2521da177e4SLinus Torvalds unsigned long bridge_forward_delay; 2531da177e4SLinus Torvalds 254fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 2551da177e4SLinus Torvalds u16 root_port; 2569cde0708SStephen Hemminger 2579cde0708SStephen Hemminger enum { 2589cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 2599cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 2609cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 2619cde0708SStephen Hemminger } stp_enabled; 2629cde0708SStephen Hemminger 2631da177e4SLinus Torvalds unsigned char topology_change; 2641da177e4SLinus Torvalds unsigned char topology_change_detected; 2651da177e4SLinus Torvalds 266eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 267eb1d1641SHerbert Xu unsigned char multicast_router; 268eb1d1641SHerbert Xu 269eb1d1641SHerbert Xu u8 multicast_disabled:1; 270c5c23260SHerbert Xu u8 multicast_querier:1; 2711c8ad5bfSCong Wang u8 multicast_query_use_ifaddr:1; 272eb1d1641SHerbert Xu 273eb1d1641SHerbert Xu u32 hash_elasticity; 274eb1d1641SHerbert Xu u32 hash_max; 275eb1d1641SHerbert Xu 276eb1d1641SHerbert Xu u32 multicast_last_member_count; 277eb1d1641SHerbert Xu u32 multicast_startup_query_count; 278eb1d1641SHerbert Xu 279eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 280eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 281eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 282eb1d1641SHerbert Xu unsigned long multicast_query_interval; 283eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 284eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 285eb1d1641SHerbert Xu 286eb1d1641SHerbert Xu spinlock_t multicast_lock; 287e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 288eb1d1641SHerbert Xu struct hlist_head router_list; 289eb1d1641SHerbert Xu 290eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 291cc0fdd80SLinus Lüssing struct bridge_mcast_querier ip4_querier; 292cc0fdd80SLinus Lüssing struct bridge_mcast_query ip4_query; 293cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 294cc0fdd80SLinus Lüssing struct bridge_mcast_querier ip6_querier; 295cc0fdd80SLinus Lüssing struct bridge_mcast_query ip6_query; 296cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 297eb1d1641SHerbert Xu #endif 298eb1d1641SHerbert Xu 2991da177e4SLinus Torvalds struct timer_list hello_timer; 3001da177e4SLinus Torvalds struct timer_list tcn_timer; 3011da177e4SLinus Torvalds struct timer_list topology_change_timer; 3021da177e4SLinus Torvalds struct timer_list gc_timer; 30343b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 304243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 305243a2e63SVlad Yasevich u8 vlan_enabled; 306243a2e63SVlad Yasevich struct net_port_vlans __rcu *vlan_info; 307243a2e63SVlad Yasevich #endif 3081da177e4SLinus Torvalds }; 3091da177e4SLinus Torvalds 31068b7c895SHerbert Xu struct br_input_skb_cb { 31168b7c895SHerbert Xu struct net_device *brdev; 31232dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 313eb1d1641SHerbert Xu int igmp; 314eb1d1641SHerbert Xu int mrouters_only; 31532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #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 extern struct notifier_block br_device_notifier; 3421da177e4SLinus Torvalds 3431da177e4SLinus Torvalds /* called under bridge lock */ 3441da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 3451da177e4SLinus Torvalds { 3461da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 3471da177e4SLinus Torvalds } 3481da177e4SLinus Torvalds 3491da177e4SLinus Torvalds /* br_device.c */ 3501da177e4SLinus Torvalds extern void br_dev_setup(struct net_device *dev); 3511ce5cce8Sstephen hemminger extern void br_dev_delete(struct net_device *dev, struct list_head *list); 3526fef4c0cSStephen Hemminger extern netdev_tx_t br_dev_xmit(struct sk_buff *skb, 3536fef4c0cSStephen Hemminger struct net_device *dev); 354cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 35591d2c34aSHerbert Xu static inline struct netpoll_info *br_netpoll_info(struct net_bridge *br) 35691d2c34aSHerbert Xu { 35791d2c34aSHerbert Xu return br->dev->npinfo; 35891d2c34aSHerbert Xu } 359cfb478daSstephen hemminger 36091d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 36191d2c34aSHerbert Xu struct sk_buff *skb) 36291d2c34aSHerbert Xu { 36391d2c34aSHerbert Xu struct netpoll *np = p->np; 36491d2c34aSHerbert Xu 36591d2c34aSHerbert Xu if (np) 36691d2c34aSHerbert Xu netpoll_send_skb(np, skb); 36791d2c34aSHerbert Xu } 36891d2c34aSHerbert Xu 36947be03a2SAmerigo Wang extern int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp); 37091d2c34aSHerbert Xu extern void br_netpoll_disable(struct net_bridge_port *p); 37191d2c34aSHerbert Xu #else 37291d2c34aSHerbert Xu static inline struct netpoll_info *br_netpoll_info(struct net_bridge *br) 37391d2c34aSHerbert Xu { 37491d2c34aSHerbert Xu return NULL; 37591d2c34aSHerbert Xu } 37691d2c34aSHerbert Xu 3779f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 37891d2c34aSHerbert Xu struct sk_buff *skb) 37991d2c34aSHerbert Xu { 38091d2c34aSHerbert Xu } 38191d2c34aSHerbert Xu 38247be03a2SAmerigo Wang static inline int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp) 38391d2c34aSHerbert Xu { 38491d2c34aSHerbert Xu return 0; 38591d2c34aSHerbert Xu } 38691d2c34aSHerbert Xu 38791d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 38891d2c34aSHerbert Xu { 38991d2c34aSHerbert Xu } 390cfb478daSstephen hemminger #endif 3911da177e4SLinus Torvalds 3921da177e4SLinus Torvalds /* br_fdb.c */ 39387a596e0SAkinobu Mita extern int br_fdb_init(void); 3941da177e4SLinus Torvalds extern void br_fdb_fini(void); 3959cf63747SStephen Hemminger extern void br_fdb_flush(struct net_bridge *br); 3961da177e4SLinus Torvalds extern void br_fdb_changeaddr(struct net_bridge_port *p, 3971da177e4SLinus Torvalds const unsigned char *newaddr); 39843598813Sstephen hemminger extern void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 3991da177e4SLinus Torvalds extern void br_fdb_cleanup(unsigned long arg); 4001da177e4SLinus Torvalds extern void br_fdb_delete_by_port(struct net_bridge *br, 4011a620698SStephen Hemminger const struct net_bridge_port *p, int do_all); 4021da177e4SLinus Torvalds extern struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, 4032ba071ecSVlad Yasevich const unsigned char *addr, 4042ba071ecSVlad Yasevich __u16 vid); 405da678292SMichał Mirosław extern int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 4061da177e4SLinus Torvalds extern int br_fdb_fillbuf(struct net_bridge *br, void *buf, 4071da177e4SLinus Torvalds unsigned long count, unsigned long off); 4081da177e4SLinus Torvalds extern int br_fdb_insert(struct net_bridge *br, 4091da177e4SLinus Torvalds struct net_bridge_port *source, 410bc9a25d2SVlad Yasevich const unsigned char *addr, 411bc9a25d2SVlad Yasevich u16 vid); 4121da177e4SLinus Torvalds extern void br_fdb_update(struct net_bridge *br, 4131da177e4SLinus Torvalds struct net_bridge_port *source, 4142ba071ecSVlad Yasevich const unsigned char *addr, 4152ba071ecSVlad Yasevich u16 vid); 416bc9a25d2SVlad Yasevich extern int fdb_delete_by_addr(struct net_bridge *br, const u8 *addr, u16 vid); 41777162022SJohn Fastabend 4181690be63SVlad Yasevich extern int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 41977162022SJohn Fastabend struct net_device *dev, 4206b6e2725Sstephen hemminger const unsigned char *addr); 421edc7d573Sstephen hemminger extern int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], 42277162022SJohn Fastabend struct net_device *dev, 4236b6e2725Sstephen hemminger const unsigned char *addr, 42477162022SJohn Fastabend u16 nlh_flags); 42577162022SJohn Fastabend extern int br_fdb_dump(struct sk_buff *skb, 42677162022SJohn Fastabend struct netlink_callback *cb, 42777162022SJohn Fastabend struct net_device *dev, 42877162022SJohn Fastabend int idx); 4291da177e4SLinus Torvalds 4301da177e4SLinus Torvalds /* br_forward.c */ 4311da177e4SLinus Torvalds extern void br_deliver(const struct net_bridge_port *to, 4321da177e4SLinus Torvalds struct sk_buff *skb); 4331da177e4SLinus Torvalds extern int br_dev_queue_push_xmit(struct sk_buff *skb); 4341da177e4SLinus Torvalds extern void br_forward(const struct net_bridge_port *to, 4357f7708f0SMichael Braun struct sk_buff *skb, struct sk_buff *skb0); 4361da177e4SLinus Torvalds extern int br_forward_finish(struct sk_buff *skb); 437867a5943SVlad Yasevich extern void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, 438867a5943SVlad Yasevich bool unicast); 439b33084beSHerbert Xu extern void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, 440867a5943SVlad Yasevich struct sk_buff *skb2, bool unicast); 4411da177e4SLinus Torvalds 4421da177e4SLinus Torvalds /* br_if.c */ 443269def7cSStephen Hemminger extern void br_port_carrier_check(struct net_bridge_port *p); 4444aa678baSAlexey Dobriyan extern int br_add_bridge(struct net *net, const char *name); 4454aa678baSAlexey Dobriyan extern int br_del_bridge(struct net *net, const char *name); 446712d6954SAlexey Dobriyan extern void br_net_exit(struct net *net); 4471da177e4SLinus Torvalds extern int br_add_if(struct net_bridge *br, 4481da177e4SLinus Torvalds struct net_device *dev); 4491da177e4SLinus Torvalds extern int br_del_if(struct net_bridge *br, 4501da177e4SLinus Torvalds struct net_device *dev); 4511da177e4SLinus Torvalds extern int br_min_mtu(const struct net_bridge *br); 452c8f44affSMichał Mirosław extern netdev_features_t br_features_recompute(struct net_bridge *br, 453c8f44affSMichał Mirosław netdev_features_t features); 4541da177e4SLinus Torvalds 4551da177e4SLinus Torvalds /* br_input.c */ 4561da177e4SLinus Torvalds extern int br_handle_frame_finish(struct sk_buff *skb); 4578a4eb573SJiri Pirko extern rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 4581da177e4SLinus Torvalds 4591da177e4SLinus Torvalds /* br_ioctl.c */ 4601da177e4SLinus Torvalds extern int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 461881d966bSEric W. Biederman extern int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __user *arg); 4621da177e4SLinus Torvalds 463eb1d1641SHerbert Xu /* br_multicast.c */ 464eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 4652ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 466eb1d1641SHerbert Xu extern int br_multicast_rcv(struct net_bridge *br, 467eb1d1641SHerbert Xu struct net_bridge_port *port, 468eb1d1641SHerbert Xu struct sk_buff *skb); 469eb1d1641SHerbert Xu extern struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 470fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 471eb1d1641SHerbert Xu extern void br_multicast_add_port(struct net_bridge_port *port); 472eb1d1641SHerbert Xu extern void br_multicast_del_port(struct net_bridge_port *port); 473eb1d1641SHerbert Xu extern void br_multicast_enable_port(struct net_bridge_port *port); 474eb1d1641SHerbert Xu extern void br_multicast_disable_port(struct net_bridge_port *port); 475eb1d1641SHerbert Xu extern void br_multicast_init(struct net_bridge *br); 476eb1d1641SHerbert Xu extern void br_multicast_open(struct net_bridge *br); 477eb1d1641SHerbert Xu extern void br_multicast_stop(struct net_bridge *br); 4785cb5e947SHerbert Xu extern void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 4795cb5e947SHerbert Xu struct sk_buff *skb); 4805cb5e947SHerbert Xu extern void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 4815cb5e947SHerbert Xu struct sk_buff *skb, struct sk_buff *skb2); 4820909e117SHerbert Xu extern int br_multicast_set_router(struct net_bridge *br, unsigned long val); 4830909e117SHerbert Xu extern int br_multicast_set_port_router(struct net_bridge_port *p, 4840909e117SHerbert Xu unsigned long val); 485561f1103SHerbert Xu extern int br_multicast_toggle(struct net_bridge *br, unsigned long val); 486c5c23260SHerbert Xu extern int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 487b195167fSHerbert Xu extern int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 488cfd56754SCong Wang extern struct net_bridge_mdb_entry *br_mdb_ip_get( 489cfd56754SCong Wang struct net_bridge_mdb_htable *mdb, 490cfd56754SCong Wang struct br_ip *dst); 491cfd56754SCong Wang extern struct net_bridge_mdb_entry *br_multicast_new_group(struct net_bridge *br, 492cfd56754SCong Wang struct net_bridge_port *port, struct br_ip *group); 493cfd56754SCong Wang extern void br_multicast_free_pg(struct rcu_head *head); 494cfd56754SCong Wang extern struct net_bridge_port_group *br_multicast_new_port_group( 495cfd56754SCong Wang struct net_bridge_port *port, 496cfd56754SCong Wang struct br_ip *group, 497ccb1c31aSAmerigo Wang struct net_bridge_port_group *next, 498ccb1c31aSAmerigo Wang unsigned char state); 499ee07c6e7SCong Wang extern void br_mdb_init(void); 50063233159SVlad Yasevich extern void br_mdb_uninit(void); 50137a393bcSCong Wang extern void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 50237a393bcSCong Wang struct br_ip *group, int type); 50385b35269SSridhar Samudrala 504cfd56754SCong Wang #define mlock_dereference(X, br) \ 505cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 506cfd56754SCong Wang 507cfd56754SCong Wang #if IS_ENABLED(CONFIG_IPV6) 508cfd56754SCong Wang #include <net/addrconf.h> 509cfd56754SCong Wang static inline int ipv6_is_transient_multicast(const struct in6_addr *addr) 510cfd56754SCong Wang { 511cfd56754SCong Wang if (ipv6_addr_is_multicast(addr) && IPV6_ADDR_MC_FLAG_TRANSIENT(addr)) 512cfd56754SCong Wang return 1; 513cfd56754SCong Wang return 0; 514cfd56754SCong Wang } 515cfd56754SCong Wang #endif 516cfd56754SCong Wang 51785b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 51885b35269SSridhar Samudrala { 51985b35269SSridhar Samudrala return br->multicast_router == 2 || 52085b35269SSridhar Samudrala (br->multicast_router == 1 && 52185b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 52285b35269SSridhar Samudrala } 523b00589afSLinus Lüssing 524cc0fdd80SLinus Lüssing static inline bool 525cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 526cc0fdd80SLinus Lüssing struct bridge_mcast_querier *querier) 527b00589afSLinus Lüssing { 528cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 529cc0fdd80SLinus Lüssing (br->multicast_querier || timer_pending(&querier->timer)); 530cc0fdd80SLinus Lüssing } 531cc0fdd80SLinus Lüssing 532cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 533cc0fdd80SLinus Lüssing struct ethhdr *eth) 534cc0fdd80SLinus Lüssing { 535cc0fdd80SLinus Lüssing switch (eth->h_proto) { 536cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 537cc0fdd80SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip4_querier); 538cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 539cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 540cc0fdd80SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip6_querier); 541cc0fdd80SLinus Lüssing #endif 542cc0fdd80SLinus Lüssing default: 543cc0fdd80SLinus Lüssing return false; 544cc0fdd80SLinus Lüssing } 545b00589afSLinus Lüssing } 546eb1d1641SHerbert Xu #else 547eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 548eb1d1641SHerbert Xu struct net_bridge_port *port, 549eb1d1641SHerbert Xu struct sk_buff *skb) 550eb1d1641SHerbert Xu { 551eb1d1641SHerbert Xu return 0; 552eb1d1641SHerbert Xu } 553eb1d1641SHerbert Xu 554eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 555fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 556eb1d1641SHerbert Xu { 557eb1d1641SHerbert Xu return NULL; 558eb1d1641SHerbert Xu } 559eb1d1641SHerbert Xu 560eb1d1641SHerbert Xu static inline void br_multicast_add_port(struct net_bridge_port *port) 561eb1d1641SHerbert Xu { 562eb1d1641SHerbert Xu } 563eb1d1641SHerbert Xu 564eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 565eb1d1641SHerbert Xu { 566eb1d1641SHerbert Xu } 567eb1d1641SHerbert Xu 568eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 569eb1d1641SHerbert Xu { 570eb1d1641SHerbert Xu } 571eb1d1641SHerbert Xu 572eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 573eb1d1641SHerbert Xu { 574eb1d1641SHerbert Xu } 575eb1d1641SHerbert Xu 576eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 577eb1d1641SHerbert Xu { 578eb1d1641SHerbert Xu } 579eb1d1641SHerbert Xu 580eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 581eb1d1641SHerbert Xu { 582eb1d1641SHerbert Xu } 583eb1d1641SHerbert Xu 584eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 585eb1d1641SHerbert Xu { 586eb1d1641SHerbert Xu } 5875cb5e947SHerbert Xu 5885cb5e947SHerbert Xu static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 5895cb5e947SHerbert Xu struct sk_buff *skb) 5905cb5e947SHerbert Xu { 5915cb5e947SHerbert Xu } 5925cb5e947SHerbert Xu 5935cb5e947SHerbert Xu static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 5945cb5e947SHerbert Xu struct sk_buff *skb, 5955cb5e947SHerbert Xu struct sk_buff *skb2) 5965cb5e947SHerbert Xu { 5975cb5e947SHerbert Xu } 598eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 599eb1d1641SHerbert Xu { 60085b35269SSridhar Samudrala return 0; 601eb1d1641SHerbert Xu } 602cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 603cc0fdd80SLinus Lüssing struct ethhdr *eth) 604b00589afSLinus Lüssing { 605b00589afSLinus Lüssing return false; 606b00589afSLinus Lüssing } 607fdb184d1SRami Rosen static inline void br_mdb_init(void) 608fdb184d1SRami Rosen { 609fdb184d1SRami Rosen } 610fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 611fdb184d1SRami Rosen { 612fdb184d1SRami Rosen } 61385b35269SSridhar Samudrala #endif 614eb1d1641SHerbert Xu 615243a2e63SVlad Yasevich /* br_vlan.c */ 616243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 617a37b85c9SVlad Yasevich extern bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v, 61878851988SVlad Yasevich struct sk_buff *skb, u16 *vid); 61985f46c6bSVlad Yasevich extern bool br_allowed_egress(struct net_bridge *br, 62085f46c6bSVlad Yasevich const struct net_port_vlans *v, 62185f46c6bSVlad Yasevich const struct sk_buff *skb); 62278851988SVlad Yasevich extern struct sk_buff *br_handle_vlan(struct net_bridge *br, 62378851988SVlad Yasevich const struct net_port_vlans *v, 62478851988SVlad Yasevich struct sk_buff *skb); 625552406c4SVlad Yasevich extern int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); 626243a2e63SVlad Yasevich extern int br_vlan_delete(struct net_bridge *br, u16 vid); 627243a2e63SVlad Yasevich extern void br_vlan_flush(struct net_bridge *br); 628243a2e63SVlad Yasevich extern int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 629552406c4SVlad Yasevich extern int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); 630243a2e63SVlad Yasevich extern int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 631243a2e63SVlad Yasevich extern void nbp_vlan_flush(struct net_bridge_port *port); 632bc9a25d2SVlad Yasevich extern bool nbp_vlan_find(struct net_bridge_port *port, u16 vid); 633a37b85c9SVlad Yasevich 634a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 635a37b85c9SVlad Yasevich const struct net_bridge *br) 636a37b85c9SVlad Yasevich { 6371690be63SVlad Yasevich return rcu_dereference_rtnl(br->vlan_info); 638a37b85c9SVlad Yasevich } 639a37b85c9SVlad Yasevich 640a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 641a37b85c9SVlad Yasevich const struct net_bridge_port *p) 642a37b85c9SVlad Yasevich { 6431690be63SVlad Yasevich return rcu_dereference_rtnl(p->vlan_info); 644a37b85c9SVlad Yasevich } 645a37b85c9SVlad Yasevich 646a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 647a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 648a37b85c9SVlad Yasevich */ 649a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 650a37b85c9SVlad Yasevich { 651a37b85c9SVlad Yasevich int err = 0; 652a37b85c9SVlad Yasevich 653a37b85c9SVlad Yasevich if (vlan_tx_tag_present(skb)) 654a37b85c9SVlad Yasevich *vid = vlan_tx_tag_get(skb) & VLAN_VID_MASK; 655a37b85c9SVlad Yasevich else { 656a37b85c9SVlad Yasevich *vid = 0; 657a37b85c9SVlad Yasevich err = -EINVAL; 658a37b85c9SVlad Yasevich } 659a37b85c9SVlad Yasevich 660a37b85c9SVlad Yasevich return err; 661a37b85c9SVlad Yasevich } 66278851988SVlad Yasevich 66378851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 66478851988SVlad Yasevich { 66578851988SVlad Yasevich /* Return just the VID if it is set, or VLAN_N_VID (invalid vid) if 66678851988SVlad Yasevich * vid wasn't set 66778851988SVlad Yasevich */ 66878851988SVlad Yasevich smp_rmb(); 66978851988SVlad Yasevich return (v->pvid & VLAN_TAG_PRESENT) ? 67078851988SVlad Yasevich (v->pvid & ~VLAN_TAG_PRESENT) : 67178851988SVlad Yasevich VLAN_N_VID; 67278851988SVlad Yasevich } 67378851988SVlad Yasevich 674243a2e63SVlad Yasevich #else 675a37b85c9SVlad Yasevich static inline bool br_allowed_ingress(struct net_bridge *br, 676a37b85c9SVlad Yasevich struct net_port_vlans *v, 67778851988SVlad Yasevich struct sk_buff *skb, 67878851988SVlad Yasevich u16 *vid) 679a37b85c9SVlad Yasevich { 680a37b85c9SVlad Yasevich return true; 681a37b85c9SVlad Yasevich } 682a37b85c9SVlad Yasevich 68385f46c6bSVlad Yasevich static inline bool br_allowed_egress(struct net_bridge *br, 68485f46c6bSVlad Yasevich const struct net_port_vlans *v, 68585f46c6bSVlad Yasevich const struct sk_buff *skb) 68685f46c6bSVlad Yasevich { 68785f46c6bSVlad Yasevich return true; 68885f46c6bSVlad Yasevich } 68985f46c6bSVlad Yasevich 69078851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 69178851988SVlad Yasevich const struct net_port_vlans *v, 69278851988SVlad Yasevich struct sk_buff *skb) 69378851988SVlad Yasevich { 69478851988SVlad Yasevich return skb; 69578851988SVlad Yasevich } 69678851988SVlad Yasevich 697552406c4SVlad Yasevich static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) 698243a2e63SVlad Yasevich { 699243a2e63SVlad Yasevich return -EOPNOTSUPP; 700243a2e63SVlad Yasevich } 701243a2e63SVlad Yasevich 702243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 703243a2e63SVlad Yasevich { 704243a2e63SVlad Yasevich return -EOPNOTSUPP; 705243a2e63SVlad Yasevich } 706243a2e63SVlad Yasevich 707243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 708243a2e63SVlad Yasevich { 709243a2e63SVlad Yasevich } 710243a2e63SVlad Yasevich 711552406c4SVlad Yasevich static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) 712243a2e63SVlad Yasevich { 713243a2e63SVlad Yasevich return -EOPNOTSUPP; 714243a2e63SVlad Yasevich } 715243a2e63SVlad Yasevich 716243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 717243a2e63SVlad Yasevich { 718243a2e63SVlad Yasevich return -EOPNOTSUPP; 719243a2e63SVlad Yasevich } 720243a2e63SVlad Yasevich 721243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 722243a2e63SVlad Yasevich { 723243a2e63SVlad Yasevich } 724243a2e63SVlad Yasevich 725a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 726a37b85c9SVlad Yasevich const struct net_bridge *br) 727a37b85c9SVlad Yasevich { 728a37b85c9SVlad Yasevich return NULL; 729a37b85c9SVlad Yasevich } 730a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 731a37b85c9SVlad Yasevich const struct net_bridge_port *p) 732a37b85c9SVlad Yasevich { 733a37b85c9SVlad Yasevich return NULL; 734a37b85c9SVlad Yasevich } 735a37b85c9SVlad Yasevich 736bc9a25d2SVlad Yasevich static inline bool nbp_vlan_find(struct net_bridge_port *port, u16 vid) 737bc9a25d2SVlad Yasevich { 738bc9a25d2SVlad Yasevich return false; 739bc9a25d2SVlad Yasevich } 740bc9a25d2SVlad Yasevich 74178851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 742a37b85c9SVlad Yasevich { 743a37b85c9SVlad Yasevich return 0; 744a37b85c9SVlad Yasevich } 74578851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 74678851988SVlad Yasevich { 74778851988SVlad Yasevich return VLAN_N_VID; /* Returns invalid vid */ 74878851988SVlad Yasevich } 749243a2e63SVlad Yasevich #endif 750243a2e63SVlad Yasevich 7511da177e4SLinus Torvalds /* br_netfilter.c */ 752c0909713SStephen Hemminger #ifdef CONFIG_BRIDGE_NETFILTER 7531da177e4SLinus Torvalds extern int br_netfilter_init(void); 7541da177e4SLinus Torvalds extern void br_netfilter_fini(void); 7554adf0af6SSimon Wunderlich extern void br_netfilter_rtable_init(struct net_bridge *); 756c0909713SStephen Hemminger #else 757c0909713SStephen Hemminger #define br_netfilter_init() (0) 758c0909713SStephen Hemminger #define br_netfilter_fini() do { } while(0) 7594adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 760c0909713SStephen Hemminger #endif 7611da177e4SLinus Torvalds 7621da177e4SLinus Torvalds /* br_stp.c */ 7631da177e4SLinus Torvalds extern void br_log_state(const struct net_bridge_port *p); 7641da177e4SLinus Torvalds extern struct net_bridge_port *br_get_port(struct net_bridge *br, 7651da177e4SLinus Torvalds u16 port_no); 7661da177e4SLinus Torvalds extern void br_init_port(struct net_bridge_port *p); 7671da177e4SLinus Torvalds extern void br_become_designated_port(struct net_bridge_port *p); 7681da177e4SLinus Torvalds 76914f98f25Sstephen hemminger extern int br_set_forward_delay(struct net_bridge *br, unsigned long x); 77014f98f25Sstephen hemminger extern int br_set_hello_time(struct net_bridge *br, unsigned long x); 77114f98f25Sstephen hemminger extern int br_set_max_age(struct net_bridge *br, unsigned long x); 77214f98f25Sstephen hemminger 77314f98f25Sstephen hemminger 7741da177e4SLinus Torvalds /* br_stp_if.c */ 7751da177e4SLinus Torvalds extern void br_stp_enable_bridge(struct net_bridge *br); 7761da177e4SLinus Torvalds extern void br_stp_disable_bridge(struct net_bridge *br); 7779cde0708SStephen Hemminger extern void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 7781da177e4SLinus Torvalds extern void br_stp_enable_port(struct net_bridge_port *p); 7791da177e4SLinus Torvalds extern void br_stp_disable_port(struct net_bridge_port *p); 780edf947f1Sstephen hemminger extern bool br_stp_recalculate_bridge_id(struct net_bridge *br); 7814505a3efSStephen Hemminger extern void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 7821da177e4SLinus Torvalds extern void br_stp_set_bridge_priority(struct net_bridge *br, 7831da177e4SLinus Torvalds u16 newprio); 78414f98f25Sstephen hemminger extern int br_stp_set_port_priority(struct net_bridge_port *p, 78514f98f25Sstephen hemminger unsigned long newprio); 78614f98f25Sstephen hemminger extern int br_stp_set_path_cost(struct net_bridge_port *p, 78714f98f25Sstephen hemminger unsigned long path_cost); 7881da177e4SLinus Torvalds extern ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 7891da177e4SLinus Torvalds 7901da177e4SLinus Torvalds /* br_stp_bpdu.c */ 7917c85fbf0SPatrick McHardy struct stp_proto; 7927c85fbf0SPatrick McHardy extern void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 7937c85fbf0SPatrick McHardy struct net_device *dev); 7941da177e4SLinus Torvalds 7951da177e4SLinus Torvalds /* br_stp_timer.c */ 7961da177e4SLinus Torvalds extern void br_stp_timer_init(struct net_bridge *br); 7971da177e4SLinus Torvalds extern void br_stp_port_timer_init(struct net_bridge_port *p); 7981da177e4SLinus Torvalds extern unsigned long br_timer_value(const struct timer_list *timer); 7991da177e4SLinus Torvalds 8001da177e4SLinus Torvalds /* br.c */ 801e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 802da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 803da678292SMichał Mirosław #endif 8041da177e4SLinus Torvalds 80511dc1f36SStephen Hemminger /* br_netlink.c */ 806149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 80732fe21c0SThomas Graf extern int br_netlink_init(void); 80811dc1f36SStephen Hemminger extern void br_netlink_fini(void); 80911dc1f36SStephen Hemminger extern void br_ifinfo_notify(int event, struct net_bridge_port *port); 810e5a55a89SJohn Fastabend extern int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg); 811407af329SVlad Yasevich extern int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg); 812e5a55a89SJohn Fastabend extern int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, 8136cbdceebSVlad Yasevich struct net_device *dev, u32 filter_mask); 81411dc1f36SStephen Hemminger 8151da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 8161da177e4SLinus Torvalds /* br_sysfs_if.c */ 81752cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 8181da177e4SLinus Torvalds extern int br_sysfs_addif(struct net_bridge_port *p); 819e0f43752SSimon Arlott extern int br_sysfs_renameif(struct net_bridge_port *p); 8201da177e4SLinus Torvalds 8211da177e4SLinus Torvalds /* br_sysfs_br.c */ 8221da177e4SLinus Torvalds extern int br_sysfs_addbr(struct net_device *dev); 8231da177e4SLinus Torvalds extern void br_sysfs_delbr(struct net_device *dev); 8241da177e4SLinus Torvalds 8251da177e4SLinus Torvalds #else 8261da177e4SLinus Torvalds 8270cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 8280cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 8290cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 8300cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 8311da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 8321da177e4SLinus Torvalds 8331da177e4SLinus Torvalds #endif 834