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 38f2808d22SToshiaki Makita /* The Nearest Customer Bridge Group Address, 01-80-C2-00-00-[00,0B,0C,0D,0F] */ 39f2808d22SToshiaki Makita #define BR_GROUPFWD_8021AD 0xB801u 40515853ccSstephen hemminger 419cde0708SStephen Hemminger /* Path to usermode spanning tree program */ 429cde0708SStephen Hemminger #define BR_STP_PROG "/sbin/bridge-stp" 438cbb512eSStephen Hemminger 441da177e4SLinus Torvalds typedef struct bridge_id bridge_id; 451da177e4SLinus Torvalds typedef struct mac_addr mac_addr; 461da177e4SLinus Torvalds typedef __u16 port_id; 471da177e4SLinus Torvalds 481da177e4SLinus Torvalds struct bridge_id 491da177e4SLinus Torvalds { 501da177e4SLinus Torvalds unsigned char prio[2]; 51e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 521da177e4SLinus Torvalds }; 531da177e4SLinus Torvalds 541da177e4SLinus Torvalds struct mac_addr 551da177e4SLinus Torvalds { 56e5a727f6SJoe Perches unsigned char addr[ETH_ALEN]; 571da177e4SLinus Torvalds }; 581da177e4SLinus Torvalds 59cc0fdd80SLinus Lüssing #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 60cc0fdd80SLinus Lüssing /* our own querier */ 6190010b36SLinus Lüssing struct bridge_mcast_own_query { 62cc0fdd80SLinus Lüssing struct timer_list timer; 63cc0fdd80SLinus Lüssing u32 startup_sent; 64cc0fdd80SLinus Lüssing }; 65cc0fdd80SLinus Lüssing 66cc0fdd80SLinus Lüssing /* other querier */ 6790010b36SLinus Lüssing struct bridge_mcast_other_query { 68cc0fdd80SLinus Lüssing struct timer_list timer; 69cc0fdd80SLinus Lüssing unsigned long delay_time; 70cc0fdd80SLinus Lüssing }; 71dc4eb53aSLinus Lüssing 72dc4eb53aSLinus Lüssing /* selected querier */ 73dc4eb53aSLinus Lüssing struct bridge_mcast_querier { 74dc4eb53aSLinus Lüssing struct br_ip addr; 752cd41431SLinus Lüssing struct net_bridge_port __rcu *port; 76dc4eb53aSLinus Lüssing }; 77cc0fdd80SLinus Lüssing #endif 78cc0fdd80SLinus Lüssing 79243a2e63SVlad Yasevich struct net_port_vlans { 80243a2e63SVlad Yasevich u16 port_idx; 8178851988SVlad Yasevich u16 pvid; 82243a2e63SVlad Yasevich union { 83243a2e63SVlad Yasevich struct net_bridge_port *port; 84243a2e63SVlad Yasevich struct net_bridge *br; 85243a2e63SVlad Yasevich } parent; 86243a2e63SVlad Yasevich struct rcu_head rcu; 87243a2e63SVlad Yasevich unsigned long vlan_bitmap[BR_VLAN_BITMAP_LEN]; 8835e03f3aSVlad Yasevich unsigned long untagged_bitmap[BR_VLAN_BITMAP_LEN]; 896cbdceebSVlad Yasevich u16 num_vlans; 90243a2e63SVlad Yasevich }; 91243a2e63SVlad Yasevich 921da177e4SLinus Torvalds struct net_bridge_fdb_entry 931da177e4SLinus Torvalds { 941da177e4SLinus Torvalds struct hlist_node hlist; 951da177e4SLinus Torvalds struct net_bridge_port *dst; 961da177e4SLinus Torvalds 971da177e4SLinus Torvalds struct rcu_head rcu; 987cd8861aSstephen hemminger unsigned long updated; 997cd8861aSstephen hemminger unsigned long used; 1001da177e4SLinus Torvalds mac_addr addr; 1011da177e4SLinus Torvalds unsigned char is_local; 1021da177e4SLinus Torvalds unsigned char is_static; 103a5642ab4SToshiaki Makita unsigned char added_by_user; 1042ba071ecSVlad Yasevich __u16 vlan_id; 1051da177e4SLinus Torvalds }; 1061da177e4SLinus Torvalds 107eb1d1641SHerbert Xu struct net_bridge_port_group { 108eb1d1641SHerbert Xu struct net_bridge_port *port; 109e8051688SEric Dumazet struct net_bridge_port_group __rcu *next; 110eb1d1641SHerbert Xu struct hlist_node mglist; 111eb1d1641SHerbert Xu struct rcu_head rcu; 112eb1d1641SHerbert Xu struct timer_list timer; 1138ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 114ccb1c31aSAmerigo Wang unsigned char state; 115eb1d1641SHerbert Xu }; 116eb1d1641SHerbert Xu 117eb1d1641SHerbert Xu struct net_bridge_mdb_entry 118eb1d1641SHerbert Xu { 119eb1d1641SHerbert Xu struct hlist_node hlist[2]; 120eb1d1641SHerbert Xu struct net_bridge *br; 121e8051688SEric Dumazet struct net_bridge_port_group __rcu *ports; 122eb1d1641SHerbert Xu struct rcu_head rcu; 123eb1d1641SHerbert Xu struct timer_list timer; 1248ef2a9a5SYOSHIFUJI Hideaki struct br_ip addr; 1258a870178SHerbert Xu bool mglist; 126eb1d1641SHerbert Xu }; 127eb1d1641SHerbert Xu 128eb1d1641SHerbert Xu struct net_bridge_mdb_htable 129eb1d1641SHerbert Xu { 130eb1d1641SHerbert Xu struct hlist_head *mhash; 131eb1d1641SHerbert Xu struct rcu_head rcu; 132eb1d1641SHerbert Xu struct net_bridge_mdb_htable *old; 133eb1d1641SHerbert Xu u32 size; 134eb1d1641SHerbert Xu u32 max; 135eb1d1641SHerbert Xu u32 secret; 136eb1d1641SHerbert Xu u32 ver; 137eb1d1641SHerbert Xu }; 138eb1d1641SHerbert Xu 1391da177e4SLinus Torvalds struct net_bridge_port 1401da177e4SLinus Torvalds { 1411da177e4SLinus Torvalds struct net_bridge *br; 1421da177e4SLinus Torvalds struct net_device *dev; 1431da177e4SLinus Torvalds struct list_head list; 1441da177e4SLinus Torvalds 1451da177e4SLinus Torvalds /* STP */ 1461da177e4SLinus Torvalds u8 priority; 1471da177e4SLinus Torvalds u8 state; 1481da177e4SLinus Torvalds u16 port_no; 1491da177e4SLinus Torvalds unsigned char topology_change_ack; 1501da177e4SLinus Torvalds unsigned char config_pending; 1511da177e4SLinus Torvalds port_id port_id; 1521da177e4SLinus Torvalds port_id designated_port; 1531da177e4SLinus Torvalds bridge_id designated_root; 1541da177e4SLinus Torvalds bridge_id designated_bridge; 1551da177e4SLinus Torvalds u32 path_cost; 1561da177e4SLinus Torvalds u32 designated_cost; 1570c03150eSstephen hemminger unsigned long designated_age; 1581da177e4SLinus Torvalds 1591da177e4SLinus Torvalds struct timer_list forward_delay_timer; 1601da177e4SLinus Torvalds struct timer_list hold_timer; 1611da177e4SLinus Torvalds struct timer_list message_age_timer; 1621da177e4SLinus Torvalds struct kobject kobj; 1631da177e4SLinus Torvalds struct rcu_head rcu; 1643982d3d2SFischer, Anna 1653982d3d2SFischer, Anna unsigned long flags; 1663982d3d2SFischer, Anna #define BR_HAIRPIN_MODE 0x00000001 167a2e01a65Sstephen hemminger #define BR_BPDU_GUARD 0x00000002 1681007dd1aSstephen hemminger #define BR_ROOT_BLOCK 0x00000004 169c2d3babfSDavid S. Miller #define BR_MULTICAST_FAST_LEAVE 0x00000008 1708f3359bdSstephen hemminger #define BR_ADMIN_COST 0x00000010 1719ba18891SVlad Yasevich #define BR_LEARNING 0x00000020 172867a5943SVlad Yasevich #define BR_FLOOD 0x00000040 173e028e4b8SVlad Yasevich #define BR_AUTO_MASK (BR_FLOOD | BR_LEARNING) 174f3a6ddf1SVlad Yasevich #define BR_PROMISC 0x00000080 175eb1d1641SHerbert Xu 176eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 17790010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 178cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 17990010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 180cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 181eb1d1641SHerbert Xu unsigned char multicast_router; 182eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 183eb1d1641SHerbert Xu struct hlist_head mglist; 184eb1d1641SHerbert Xu struct hlist_node rlist; 185eb1d1641SHerbert Xu #endif 186e0f43752SSimon Arlott 187e0f43752SSimon Arlott #ifdef CONFIG_SYSFS 188e0f43752SSimon Arlott char sysfs_name[IFNAMSIZ]; 189e0f43752SSimon Arlott #endif 19091d2c34aSHerbert Xu 19191d2c34aSHerbert Xu #ifdef CONFIG_NET_POLL_CONTROLLER 19291d2c34aSHerbert Xu struct netpoll *np; 19391d2c34aSHerbert Xu #endif 194243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 195243a2e63SVlad Yasevich struct net_port_vlans __rcu *vlan_info; 196243a2e63SVlad Yasevich #endif 1971da177e4SLinus Torvalds }; 1981da177e4SLinus Torvalds 199e028e4b8SVlad Yasevich #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) 200f3a6ddf1SVlad Yasevich #define br_promisc_port(p) ((p)->flags & BR_PROMISC) 201e028e4b8SVlad Yasevich 202f350a0a8SJiri Pirko #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) 203f350a0a8SJiri Pirko 204b5ed54e9Sstephen hemminger static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) 205b5ed54e9Sstephen hemminger { 206716ec052SHong Zhiguo return rcu_dereference(dev->rx_handler_data); 207b5ed54e9Sstephen hemminger } 208b5ed54e9Sstephen hemminger 2091fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) 210b5ed54e9Sstephen hemminger { 211ec1e5610SEric Dumazet return br_port_exists(dev) ? 212ec1e5610SEric Dumazet rtnl_dereference(dev->rx_handler_data) : NULL; 213b5ed54e9Sstephen hemminger } 214b5ed54e9Sstephen hemminger 2151da177e4SLinus Torvalds struct net_bridge 2161da177e4SLinus Torvalds { 2171da177e4SLinus Torvalds spinlock_t lock; 2181da177e4SLinus Torvalds struct list_head port_list; 2191da177e4SLinus Torvalds struct net_device *dev; 22014bb4789Sstephen hemminger 2218f84985fSLi RongQing struct pcpu_sw_netstats __percpu *stats; 2221da177e4SLinus Torvalds spinlock_t hash_lock; 2231da177e4SLinus Torvalds struct hlist_head hash[BR_HASH_SIZE]; 2244adf0af6SSimon Wunderlich #ifdef CONFIG_BRIDGE_NETFILTER 2254adf0af6SSimon Wunderlich struct rtable fake_rtable; 2264df53d8bSPatrick McHardy bool nf_call_iptables; 2274df53d8bSPatrick McHardy bool nf_call_ip6tables; 2284df53d8bSPatrick McHardy bool nf_call_arptables; 2294adf0af6SSimon Wunderlich #endif 230515853ccSstephen hemminger u16 group_fwd_mask; 231f2808d22SToshiaki Makita u16 group_fwd_mask_required; 232515853ccSstephen hemminger 2331da177e4SLinus Torvalds /* STP */ 2341da177e4SLinus Torvalds bridge_id designated_root; 2351da177e4SLinus Torvalds bridge_id bridge_id; 2361da177e4SLinus Torvalds u32 root_path_cost; 2371da177e4SLinus Torvalds unsigned long max_age; 2381da177e4SLinus Torvalds unsigned long hello_time; 2391da177e4SLinus Torvalds unsigned long forward_delay; 2401da177e4SLinus Torvalds unsigned long bridge_max_age; 2411da177e4SLinus Torvalds unsigned long ageing_time; 2421da177e4SLinus Torvalds unsigned long bridge_hello_time; 2431da177e4SLinus Torvalds unsigned long bridge_forward_delay; 2441da177e4SLinus Torvalds 245fda93d92SStephen Hemminger u8 group_addr[ETH_ALEN]; 2461da177e4SLinus Torvalds u16 root_port; 2479cde0708SStephen Hemminger 2489cde0708SStephen Hemminger enum { 2499cde0708SStephen Hemminger BR_NO_STP, /* no spanning tree */ 2509cde0708SStephen Hemminger BR_KERNEL_STP, /* old STP in kernel */ 2519cde0708SStephen Hemminger BR_USER_STP, /* new RSTP in userspace */ 2529cde0708SStephen Hemminger } stp_enabled; 2539cde0708SStephen Hemminger 2541da177e4SLinus Torvalds unsigned char topology_change; 2551da177e4SLinus Torvalds unsigned char topology_change_detected; 2561da177e4SLinus Torvalds 257eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 258eb1d1641SHerbert Xu unsigned char multicast_router; 259eb1d1641SHerbert Xu 260eb1d1641SHerbert Xu u8 multicast_disabled:1; 261c5c23260SHerbert Xu u8 multicast_querier:1; 2621c8ad5bfSCong Wang u8 multicast_query_use_ifaddr:1; 263eb1d1641SHerbert Xu 264eb1d1641SHerbert Xu u32 hash_elasticity; 265eb1d1641SHerbert Xu u32 hash_max; 266eb1d1641SHerbert Xu 267eb1d1641SHerbert Xu u32 multicast_last_member_count; 268eb1d1641SHerbert Xu u32 multicast_startup_query_count; 269eb1d1641SHerbert Xu 270eb1d1641SHerbert Xu unsigned long multicast_last_member_interval; 271eb1d1641SHerbert Xu unsigned long multicast_membership_interval; 272eb1d1641SHerbert Xu unsigned long multicast_querier_interval; 273eb1d1641SHerbert Xu unsigned long multicast_query_interval; 274eb1d1641SHerbert Xu unsigned long multicast_query_response_interval; 275eb1d1641SHerbert Xu unsigned long multicast_startup_query_interval; 276eb1d1641SHerbert Xu 277eb1d1641SHerbert Xu spinlock_t multicast_lock; 278e8051688SEric Dumazet struct net_bridge_mdb_htable __rcu *mdb; 279eb1d1641SHerbert Xu struct hlist_head router_list; 280eb1d1641SHerbert Xu 281eb1d1641SHerbert Xu struct timer_list multicast_router_timer; 28290010b36SLinus Lüssing struct bridge_mcast_other_query ip4_other_query; 28390010b36SLinus Lüssing struct bridge_mcast_own_query ip4_own_query; 284dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip4_querier; 285cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 28690010b36SLinus Lüssing struct bridge_mcast_other_query ip6_other_query; 28790010b36SLinus Lüssing struct bridge_mcast_own_query ip6_own_query; 288dc4eb53aSLinus Lüssing struct bridge_mcast_querier ip6_querier; 289cc0fdd80SLinus Lüssing #endif /* IS_ENABLED(CONFIG_IPV6) */ 290eb1d1641SHerbert Xu #endif 291eb1d1641SHerbert Xu 2921da177e4SLinus Torvalds struct timer_list hello_timer; 2931da177e4SLinus Torvalds struct timer_list tcn_timer; 2941da177e4SLinus Torvalds struct timer_list topology_change_timer; 2951da177e4SLinus Torvalds struct timer_list gc_timer; 29643b98c4aSGreg Kroah-Hartman struct kobject *ifobj; 297e028e4b8SVlad Yasevich u32 auto_cnt; 298243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 299243a2e63SVlad Yasevich u8 vlan_enabled; 3008580e211SToshiaki Makita __be16 vlan_proto; 301243a2e63SVlad Yasevich struct net_port_vlans __rcu *vlan_info; 302243a2e63SVlad Yasevich #endif 3031da177e4SLinus Torvalds }; 3041da177e4SLinus Torvalds 30568b7c895SHerbert Xu struct br_input_skb_cb { 30668b7c895SHerbert Xu struct net_device *brdev; 30732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 308eb1d1641SHerbert Xu int igmp; 309eb1d1641SHerbert Xu int mrouters_only; 31032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 31168b7c895SHerbert Xu }; 31268b7c895SHerbert Xu 31368b7c895SHerbert Xu #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) 31468b7c895SHerbert Xu 31532dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 31632dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) 31732dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #else 31832dec5ddSYOSHIFUJI Hideaki / 吉藤英明 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) 31932dec5ddSYOSHIFUJI Hideaki / 吉藤英明 #endif 32032dec5ddSYOSHIFUJI Hideaki / 吉藤英明 32128a16c97Sstephen hemminger #define br_printk(level, br, format, args...) \ 32228a16c97Sstephen hemminger printk(level "%s: " format, (br)->dev->name, ##args) 32328a16c97Sstephen hemminger 32428a16c97Sstephen hemminger #define br_err(__br, format, args...) \ 32528a16c97Sstephen hemminger br_printk(KERN_ERR, __br, format, ##args) 32628a16c97Sstephen hemminger #define br_warn(__br, format, args...) \ 32728a16c97Sstephen hemminger br_printk(KERN_WARNING, __br, format, ##args) 32828a16c97Sstephen hemminger #define br_notice(__br, format, args...) \ 32928a16c97Sstephen hemminger br_printk(KERN_NOTICE, __br, format, ##args) 33028a16c97Sstephen hemminger #define br_info(__br, format, args...) \ 33128a16c97Sstephen hemminger br_printk(KERN_INFO, __br, format, ##args) 33228a16c97Sstephen hemminger 33328a16c97Sstephen hemminger #define br_debug(br, format, args...) \ 33428a16c97Sstephen hemminger pr_debug("%s: " format, (br)->dev->name, ##args) 33528a16c97Sstephen hemminger 3361da177e4SLinus Torvalds /* called under bridge lock */ 3371da177e4SLinus Torvalds static inline int br_is_root_bridge(const struct net_bridge *br) 3381da177e4SLinus Torvalds { 3391da177e4SLinus Torvalds return !memcmp(&br->bridge_id, &br->designated_root, 8); 3401da177e4SLinus Torvalds } 3411da177e4SLinus Torvalds 3421da177e4SLinus Torvalds /* br_device.c */ 343348662a1SJoe Perches void br_dev_setup(struct net_device *dev); 344348662a1SJoe Perches void br_dev_delete(struct net_device *dev, struct list_head *list); 345348662a1SJoe Perches netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); 346cfb478daSstephen hemminger #ifdef CONFIG_NET_POLL_CONTROLLER 34791d2c34aSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 34891d2c34aSHerbert Xu struct sk_buff *skb) 34991d2c34aSHerbert Xu { 35091d2c34aSHerbert Xu struct netpoll *np = p->np; 35191d2c34aSHerbert Xu 35291d2c34aSHerbert Xu if (np) 35391d2c34aSHerbert Xu netpoll_send_skb(np, skb); 35491d2c34aSHerbert Xu } 35591d2c34aSHerbert Xu 356a8779ec1SEric W. Biederman int br_netpoll_enable(struct net_bridge_port *p); 357348662a1SJoe Perches void br_netpoll_disable(struct net_bridge_port *p); 35891d2c34aSHerbert Xu #else 3599f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 36091d2c34aSHerbert Xu struct sk_buff *skb) 36191d2c34aSHerbert Xu { 36291d2c34aSHerbert Xu } 36391d2c34aSHerbert Xu 364a8779ec1SEric W. Biederman static inline int br_netpoll_enable(struct net_bridge_port *p) 36591d2c34aSHerbert Xu { 36691d2c34aSHerbert Xu return 0; 36791d2c34aSHerbert Xu } 36891d2c34aSHerbert Xu 36991d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 37091d2c34aSHerbert Xu { 37191d2c34aSHerbert Xu } 372cfb478daSstephen hemminger #endif 3731da177e4SLinus Torvalds 3741da177e4SLinus Torvalds /* br_fdb.c */ 375348662a1SJoe Perches int br_fdb_init(void); 376348662a1SJoe Perches void br_fdb_fini(void); 377348662a1SJoe Perches void br_fdb_flush(struct net_bridge *br); 378424bb9c9SToshiaki Makita void br_fdb_find_delete_local(struct net_bridge *br, 379424bb9c9SToshiaki Makita const struct net_bridge_port *p, 380424bb9c9SToshiaki Makita const unsigned char *addr, u16 vid); 381348662a1SJoe Perches void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); 382348662a1SJoe Perches void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 383348662a1SJoe Perches void br_fdb_cleanup(unsigned long arg); 384348662a1SJoe Perches void br_fdb_delete_by_port(struct net_bridge *br, 3851a620698SStephen Hemminger const struct net_bridge_port *p, int do_all); 386348662a1SJoe Perches struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, 387348662a1SJoe Perches const unsigned char *addr, __u16 vid); 388348662a1SJoe Perches int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 389348662a1SJoe Perches int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, 390348662a1SJoe Perches unsigned long off); 391348662a1SJoe Perches int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, 392348662a1SJoe Perches const unsigned char *addr, u16 vid); 393348662a1SJoe Perches void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, 394a5642ab4SToshiaki Makita const unsigned char *addr, u16 vid, bool added_by_user); 39577162022SJohn Fastabend 396348662a1SJoe Perches int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 397348662a1SJoe Perches struct net_device *dev, const unsigned char *addr); 398348662a1SJoe Perches int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, 399348662a1SJoe Perches const unsigned char *addr, u16 nlh_flags); 400348662a1SJoe Perches int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 401348662a1SJoe Perches struct net_device *dev, int idx); 4028db24af7SVlad Yasevich int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); 4038db24af7SVlad Yasevich void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); 4041da177e4SLinus Torvalds 4051da177e4SLinus Torvalds /* br_forward.c */ 406348662a1SJoe Perches void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb); 407348662a1SJoe Perches int br_dev_queue_push_xmit(struct sk_buff *skb); 408348662a1SJoe Perches void br_forward(const struct net_bridge_port *to, 4097f7708f0SMichael Braun struct sk_buff *skb, struct sk_buff *skb0); 410348662a1SJoe Perches int br_forward_finish(struct sk_buff *skb); 411348662a1SJoe Perches void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast); 412348662a1SJoe Perches void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, 413867a5943SVlad Yasevich struct sk_buff *skb2, bool unicast); 4141da177e4SLinus Torvalds 4151da177e4SLinus Torvalds /* br_if.c */ 416348662a1SJoe Perches void br_port_carrier_check(struct net_bridge_port *p); 417348662a1SJoe Perches int br_add_bridge(struct net *net, const char *name); 418348662a1SJoe Perches int br_del_bridge(struct net *net, const char *name); 419348662a1SJoe Perches int br_add_if(struct net_bridge *br, struct net_device *dev); 420348662a1SJoe Perches int br_del_if(struct net_bridge *br, struct net_device *dev); 421348662a1SJoe Perches int br_min_mtu(const struct net_bridge *br); 422348662a1SJoe Perches netdev_features_t br_features_recompute(struct net_bridge *br, 423c8f44affSMichał Mirosław netdev_features_t features); 424e028e4b8SVlad Yasevich void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); 4252796d0c6SVlad Yasevich void br_manage_promisc(struct net_bridge *br); 4261da177e4SLinus Torvalds 4271da177e4SLinus Torvalds /* br_input.c */ 428348662a1SJoe Perches int br_handle_frame_finish(struct sk_buff *skb); 429348662a1SJoe Perches rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 4301da177e4SLinus Torvalds 431859828c0SJiri Pirko static inline bool br_rx_handler_check_rcu(const struct net_device *dev) 432859828c0SJiri Pirko { 433859828c0SJiri Pirko return rcu_dereference(dev->rx_handler) == br_handle_frame; 434859828c0SJiri Pirko } 435859828c0SJiri Pirko 436859828c0SJiri Pirko static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) 437859828c0SJiri Pirko { 438859828c0SJiri Pirko return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; 439859828c0SJiri Pirko } 440859828c0SJiri Pirko 4411da177e4SLinus Torvalds /* br_ioctl.c */ 442348662a1SJoe Perches int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 443348662a1SJoe Perches int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, 444348662a1SJoe Perches void __user *arg); 4451da177e4SLinus Torvalds 446eb1d1641SHerbert Xu /* br_multicast.c */ 447eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 4482ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 449348662a1SJoe Perches int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, 450fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 451348662a1SJoe Perches struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 452eb1d1641SHerbert Xu struct sk_buff *skb, u16 vid); 453348662a1SJoe Perches void br_multicast_add_port(struct net_bridge_port *port); 454348662a1SJoe Perches void br_multicast_del_port(struct net_bridge_port *port); 455348662a1SJoe Perches void br_multicast_enable_port(struct net_bridge_port *port); 456348662a1SJoe Perches void br_multicast_disable_port(struct net_bridge_port *port); 457348662a1SJoe Perches void br_multicast_init(struct net_bridge *br); 458348662a1SJoe Perches void br_multicast_open(struct net_bridge *br); 459348662a1SJoe Perches void br_multicast_stop(struct net_bridge *br); 460348662a1SJoe Perches void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 4615cb5e947SHerbert Xu struct sk_buff *skb); 462348662a1SJoe Perches void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 4635cb5e947SHerbert Xu struct sk_buff *skb, struct sk_buff *skb2); 464348662a1SJoe Perches int br_multicast_set_router(struct net_bridge *br, unsigned long val); 465348662a1SJoe Perches int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); 466348662a1SJoe Perches int br_multicast_toggle(struct net_bridge *br, unsigned long val); 467348662a1SJoe Perches int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 468348662a1SJoe Perches int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 469348662a1SJoe Perches struct net_bridge_mdb_entry * 470348662a1SJoe Perches br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); 471348662a1SJoe Perches struct net_bridge_mdb_entry * 472348662a1SJoe Perches br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, 473348662a1SJoe Perches struct br_ip *group); 474348662a1SJoe Perches void br_multicast_free_pg(struct rcu_head *head); 475348662a1SJoe Perches struct net_bridge_port_group * 476348662a1SJoe Perches br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 477762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 478ccb1c31aSAmerigo Wang unsigned char state); 479348662a1SJoe Perches void br_mdb_init(void); 480348662a1SJoe Perches void br_mdb_uninit(void); 481348662a1SJoe Perches void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 48237a393bcSCong Wang struct br_ip *group, int type); 48385b35269SSridhar Samudrala 484cfd56754SCong Wang #define mlock_dereference(X, br) \ 485cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 486cfd56754SCong Wang 48785b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 48885b35269SSridhar Samudrala { 48985b35269SSridhar Samudrala return br->multicast_router == 2 || 49085b35269SSridhar Samudrala (br->multicast_router == 1 && 49185b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 49285b35269SSridhar Samudrala } 493b00589afSLinus Lüssing 494cc0fdd80SLinus Lüssing static inline bool 495cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 49690010b36SLinus Lüssing struct bridge_mcast_other_query *querier) 497b00589afSLinus Lüssing { 498cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 499cc0fdd80SLinus Lüssing (br->multicast_querier || timer_pending(&querier->timer)); 500cc0fdd80SLinus Lüssing } 501cc0fdd80SLinus Lüssing 502cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 503cc0fdd80SLinus Lüssing struct ethhdr *eth) 504cc0fdd80SLinus Lüssing { 505cc0fdd80SLinus Lüssing switch (eth->h_proto) { 506cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 50790010b36SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip4_other_query); 508cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 509cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 51090010b36SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip6_other_query); 511cc0fdd80SLinus Lüssing #endif 512cc0fdd80SLinus Lüssing default: 513cc0fdd80SLinus Lüssing return false; 514cc0fdd80SLinus Lüssing } 515b00589afSLinus Lüssing } 516eb1d1641SHerbert Xu #else 517eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 518eb1d1641SHerbert Xu struct net_bridge_port *port, 51906499098SVlad Yasevich struct sk_buff *skb, 52006499098SVlad Yasevich u16 vid) 521eb1d1641SHerbert Xu { 522eb1d1641SHerbert Xu return 0; 523eb1d1641SHerbert Xu } 524eb1d1641SHerbert Xu 525eb1d1641SHerbert Xu static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 526fbca58a2SCong Wang struct sk_buff *skb, u16 vid) 527eb1d1641SHerbert Xu { 528eb1d1641SHerbert Xu return NULL; 529eb1d1641SHerbert Xu } 530eb1d1641SHerbert Xu 531eb1d1641SHerbert Xu static inline void br_multicast_add_port(struct net_bridge_port *port) 532eb1d1641SHerbert Xu { 533eb1d1641SHerbert Xu } 534eb1d1641SHerbert Xu 535eb1d1641SHerbert Xu static inline void br_multicast_del_port(struct net_bridge_port *port) 536eb1d1641SHerbert Xu { 537eb1d1641SHerbert Xu } 538eb1d1641SHerbert Xu 539eb1d1641SHerbert Xu static inline void br_multicast_enable_port(struct net_bridge_port *port) 540eb1d1641SHerbert Xu { 541eb1d1641SHerbert Xu } 542eb1d1641SHerbert Xu 543eb1d1641SHerbert Xu static inline void br_multicast_disable_port(struct net_bridge_port *port) 544eb1d1641SHerbert Xu { 545eb1d1641SHerbert Xu } 546eb1d1641SHerbert Xu 547eb1d1641SHerbert Xu static inline void br_multicast_init(struct net_bridge *br) 548eb1d1641SHerbert Xu { 549eb1d1641SHerbert Xu } 550eb1d1641SHerbert Xu 551eb1d1641SHerbert Xu static inline void br_multicast_open(struct net_bridge *br) 552eb1d1641SHerbert Xu { 553eb1d1641SHerbert Xu } 554eb1d1641SHerbert Xu 555eb1d1641SHerbert Xu static inline void br_multicast_stop(struct net_bridge *br) 556eb1d1641SHerbert Xu { 557eb1d1641SHerbert Xu } 5585cb5e947SHerbert Xu 5595cb5e947SHerbert Xu static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 5605cb5e947SHerbert Xu struct sk_buff *skb) 5615cb5e947SHerbert Xu { 5625cb5e947SHerbert Xu } 5635cb5e947SHerbert Xu 5645cb5e947SHerbert Xu static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 5655cb5e947SHerbert Xu struct sk_buff *skb, 5665cb5e947SHerbert Xu struct sk_buff *skb2) 5675cb5e947SHerbert Xu { 5685cb5e947SHerbert Xu } 569eb1d1641SHerbert Xu static inline bool br_multicast_is_router(struct net_bridge *br) 570eb1d1641SHerbert Xu { 57185b35269SSridhar Samudrala return 0; 572eb1d1641SHerbert Xu } 573cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 574cc0fdd80SLinus Lüssing struct ethhdr *eth) 575b00589afSLinus Lüssing { 576b00589afSLinus Lüssing return false; 577b00589afSLinus Lüssing } 578fdb184d1SRami Rosen static inline void br_mdb_init(void) 579fdb184d1SRami Rosen { 580fdb184d1SRami Rosen } 581fdb184d1SRami Rosen static inline void br_mdb_uninit(void) 582fdb184d1SRami Rosen { 583fdb184d1SRami Rosen } 58485b35269SSridhar Samudrala #endif 585eb1d1641SHerbert Xu 586243a2e63SVlad Yasevich /* br_vlan.c */ 587243a2e63SVlad Yasevich #ifdef CONFIG_BRIDGE_VLAN_FILTERING 588348662a1SJoe Perches bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v, 58978851988SVlad Yasevich struct sk_buff *skb, u16 *vid); 590348662a1SJoe Perches bool br_allowed_egress(struct net_bridge *br, const struct net_port_vlans *v, 59185f46c6bSVlad Yasevich const struct sk_buff *skb); 592e0d7968aSToshiaki Makita bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); 593348662a1SJoe Perches struct sk_buff *br_handle_vlan(struct net_bridge *br, 59478851988SVlad Yasevich const struct net_port_vlans *v, 59578851988SVlad Yasevich struct sk_buff *skb); 596348662a1SJoe Perches int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); 597348662a1SJoe Perches int br_vlan_delete(struct net_bridge *br, u16 vid); 598348662a1SJoe Perches void br_vlan_flush(struct net_bridge *br); 5992b292fb4SToshiaki Makita bool br_vlan_find(struct net_bridge *br, u16 vid); 600348662a1SJoe Perches int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 6018580e211SToshiaki Makita void br_vlan_init(struct net_bridge *br); 602348662a1SJoe Perches int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); 603348662a1SJoe Perches int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 604348662a1SJoe Perches void nbp_vlan_flush(struct net_bridge_port *port); 605348662a1SJoe Perches bool nbp_vlan_find(struct net_bridge_port *port, u16 vid); 606a37b85c9SVlad Yasevich 607a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 608a37b85c9SVlad Yasevich const struct net_bridge *br) 609a37b85c9SVlad Yasevich { 6101690be63SVlad Yasevich return rcu_dereference_rtnl(br->vlan_info); 611a37b85c9SVlad Yasevich } 612a37b85c9SVlad Yasevich 613a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 614a37b85c9SVlad Yasevich const struct net_bridge_port *p) 615a37b85c9SVlad Yasevich { 6161690be63SVlad Yasevich return rcu_dereference_rtnl(p->vlan_info); 617a37b85c9SVlad Yasevich } 618a37b85c9SVlad Yasevich 619a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 620a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 621a37b85c9SVlad Yasevich */ 622a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 623a37b85c9SVlad Yasevich { 624a37b85c9SVlad Yasevich int err = 0; 625a37b85c9SVlad Yasevich 626a37b85c9SVlad Yasevich if (vlan_tx_tag_present(skb)) 627a37b85c9SVlad Yasevich *vid = vlan_tx_tag_get(skb) & VLAN_VID_MASK; 628a37b85c9SVlad Yasevich else { 629a37b85c9SVlad Yasevich *vid = 0; 630a37b85c9SVlad Yasevich err = -EINVAL; 631a37b85c9SVlad Yasevich } 632a37b85c9SVlad Yasevich 633a37b85c9SVlad Yasevich return err; 634a37b85c9SVlad Yasevich } 63578851988SVlad Yasevich 63678851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 63778851988SVlad Yasevich { 63878851988SVlad Yasevich /* Return just the VID if it is set, or VLAN_N_VID (invalid vid) if 63978851988SVlad Yasevich * vid wasn't set 64078851988SVlad Yasevich */ 64178851988SVlad Yasevich smp_rmb(); 642d1c6c708SToshiaki Makita return v->pvid ?: VLAN_N_VID; 64378851988SVlad Yasevich } 64478851988SVlad Yasevich 6452796d0c6SVlad Yasevich static inline int br_vlan_enabled(struct net_bridge *br) 6462796d0c6SVlad Yasevich { 6472796d0c6SVlad Yasevich return br->vlan_enabled; 6482796d0c6SVlad Yasevich } 649243a2e63SVlad Yasevich #else 650a37b85c9SVlad Yasevich static inline bool br_allowed_ingress(struct net_bridge *br, 651a37b85c9SVlad Yasevich struct net_port_vlans *v, 65278851988SVlad Yasevich struct sk_buff *skb, 65378851988SVlad Yasevich u16 *vid) 654a37b85c9SVlad Yasevich { 655a37b85c9SVlad Yasevich return true; 656a37b85c9SVlad Yasevich } 657a37b85c9SVlad Yasevich 65885f46c6bSVlad Yasevich static inline bool br_allowed_egress(struct net_bridge *br, 65985f46c6bSVlad Yasevich const struct net_port_vlans *v, 66085f46c6bSVlad Yasevich const struct sk_buff *skb) 66185f46c6bSVlad Yasevich { 66285f46c6bSVlad Yasevich return true; 66385f46c6bSVlad Yasevich } 66485f46c6bSVlad Yasevich 665e0d7968aSToshiaki Makita static inline bool br_should_learn(struct net_bridge_port *p, 666e0d7968aSToshiaki Makita struct sk_buff *skb, u16 *vid) 667e0d7968aSToshiaki Makita { 668e0d7968aSToshiaki Makita return true; 669e0d7968aSToshiaki Makita } 670e0d7968aSToshiaki Makita 67178851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 67278851988SVlad Yasevich const struct net_port_vlans *v, 67378851988SVlad Yasevich struct sk_buff *skb) 67478851988SVlad Yasevich { 67578851988SVlad Yasevich return skb; 67678851988SVlad Yasevich } 67778851988SVlad Yasevich 678552406c4SVlad Yasevich static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) 679243a2e63SVlad Yasevich { 680243a2e63SVlad Yasevich return -EOPNOTSUPP; 681243a2e63SVlad Yasevich } 682243a2e63SVlad Yasevich 683243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 684243a2e63SVlad Yasevich { 685243a2e63SVlad Yasevich return -EOPNOTSUPP; 686243a2e63SVlad Yasevich } 687243a2e63SVlad Yasevich 688243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 689243a2e63SVlad Yasevich { 690243a2e63SVlad Yasevich } 691243a2e63SVlad Yasevich 6922b292fb4SToshiaki Makita static inline bool br_vlan_find(struct net_bridge *br, u16 vid) 6932b292fb4SToshiaki Makita { 6942b292fb4SToshiaki Makita return false; 6952b292fb4SToshiaki Makita } 6962b292fb4SToshiaki Makita 6978580e211SToshiaki Makita static inline void br_vlan_init(struct net_bridge *br) 6988580e211SToshiaki Makita { 6998580e211SToshiaki Makita } 7008580e211SToshiaki Makita 701552406c4SVlad Yasevich static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) 702243a2e63SVlad Yasevich { 703243a2e63SVlad Yasevich return -EOPNOTSUPP; 704243a2e63SVlad Yasevich } 705243a2e63SVlad Yasevich 706243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 707243a2e63SVlad Yasevich { 708243a2e63SVlad Yasevich return -EOPNOTSUPP; 709243a2e63SVlad Yasevich } 710243a2e63SVlad Yasevich 711243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 712243a2e63SVlad Yasevich { 713243a2e63SVlad Yasevich } 714243a2e63SVlad Yasevich 715a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 716a37b85c9SVlad Yasevich const struct net_bridge *br) 717a37b85c9SVlad Yasevich { 718a37b85c9SVlad Yasevich return NULL; 719a37b85c9SVlad Yasevich } 720a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 721a37b85c9SVlad Yasevich const struct net_bridge_port *p) 722a37b85c9SVlad Yasevich { 723a37b85c9SVlad Yasevich return NULL; 724a37b85c9SVlad Yasevich } 725a37b85c9SVlad Yasevich 726bc9a25d2SVlad Yasevich static inline bool nbp_vlan_find(struct net_bridge_port *port, u16 vid) 727bc9a25d2SVlad Yasevich { 728bc9a25d2SVlad Yasevich return false; 729bc9a25d2SVlad Yasevich } 730bc9a25d2SVlad Yasevich 73178851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 732a37b85c9SVlad Yasevich { 733a37b85c9SVlad Yasevich return 0; 734a37b85c9SVlad Yasevich } 73578851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 73678851988SVlad Yasevich { 73778851988SVlad Yasevich return VLAN_N_VID; /* Returns invalid vid */ 73878851988SVlad Yasevich } 7392796d0c6SVlad Yasevich 740d4f0e095SAlexei Starovoitov static inline int br_vlan_enabled(struct net_bridge *br) 7412796d0c6SVlad Yasevich { 7422796d0c6SVlad Yasevich return 0; 7432796d0c6SVlad Yasevich } 744243a2e63SVlad Yasevich #endif 745243a2e63SVlad Yasevich 7461da177e4SLinus Torvalds /* br_netfilter.c */ 747c0909713SStephen Hemminger #ifdef CONFIG_BRIDGE_NETFILTER 748348662a1SJoe Perches int br_netfilter_init(void); 749348662a1SJoe Perches void br_netfilter_fini(void); 750348662a1SJoe Perches void br_netfilter_rtable_init(struct net_bridge *); 751c0909713SStephen Hemminger #else 752c0909713SStephen Hemminger #define br_netfilter_init() (0) 753c0909713SStephen Hemminger #define br_netfilter_fini() do { } while (0) 7544adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 755c0909713SStephen Hemminger #endif 7561da177e4SLinus Torvalds 7571da177e4SLinus Torvalds /* br_stp.c */ 758348662a1SJoe Perches void br_log_state(const struct net_bridge_port *p); 759348662a1SJoe Perches struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); 760348662a1SJoe Perches void br_init_port(struct net_bridge_port *p); 761348662a1SJoe Perches void br_become_designated_port(struct net_bridge_port *p); 7621da177e4SLinus Torvalds 763348662a1SJoe Perches void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 764348662a1SJoe Perches int br_set_forward_delay(struct net_bridge *br, unsigned long x); 765348662a1SJoe Perches int br_set_hello_time(struct net_bridge *br, unsigned long x); 766348662a1SJoe Perches int br_set_max_age(struct net_bridge *br, unsigned long x); 76714f98f25Sstephen hemminger 76814f98f25Sstephen hemminger 7691da177e4SLinus Torvalds /* br_stp_if.c */ 770348662a1SJoe Perches void br_stp_enable_bridge(struct net_bridge *br); 771348662a1SJoe Perches void br_stp_disable_bridge(struct net_bridge *br); 772348662a1SJoe Perches void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 773348662a1SJoe Perches void br_stp_enable_port(struct net_bridge_port *p); 774348662a1SJoe Perches void br_stp_disable_port(struct net_bridge_port *p); 775348662a1SJoe Perches bool br_stp_recalculate_bridge_id(struct net_bridge *br); 776348662a1SJoe Perches void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 777348662a1SJoe Perches void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); 778348662a1SJoe Perches int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); 779348662a1SJoe Perches int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); 780348662a1SJoe Perches ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 7811da177e4SLinus Torvalds 7821da177e4SLinus Torvalds /* br_stp_bpdu.c */ 7837c85fbf0SPatrick McHardy struct stp_proto; 784348662a1SJoe Perches void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 7857c85fbf0SPatrick McHardy struct net_device *dev); 7861da177e4SLinus Torvalds 7871da177e4SLinus Torvalds /* br_stp_timer.c */ 788348662a1SJoe Perches void br_stp_timer_init(struct net_bridge *br); 789348662a1SJoe Perches void br_stp_port_timer_init(struct net_bridge_port *p); 790348662a1SJoe Perches unsigned long br_timer_value(const struct timer_list *timer); 7911da177e4SLinus Torvalds 7921da177e4SLinus Torvalds /* br.c */ 793e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 794da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 795da678292SMichał Mirosław #endif 7961da177e4SLinus Torvalds 79711dc1f36SStephen Hemminger /* br_netlink.c */ 798149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 799348662a1SJoe Perches int br_netlink_init(void); 800348662a1SJoe Perches void br_netlink_fini(void); 801348662a1SJoe Perches void br_ifinfo_notify(int event, struct net_bridge_port *port); 802348662a1SJoe Perches int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg); 803348662a1SJoe Perches int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg); 804348662a1SJoe Perches int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, 805348662a1SJoe Perches u32 filter_mask); 80611dc1f36SStephen Hemminger 8071da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 8081da177e4SLinus Torvalds /* br_sysfs_if.c */ 80952cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 810348662a1SJoe Perches int br_sysfs_addif(struct net_bridge_port *p); 811348662a1SJoe Perches int br_sysfs_renameif(struct net_bridge_port *p); 8121da177e4SLinus Torvalds 8131da177e4SLinus Torvalds /* br_sysfs_br.c */ 814348662a1SJoe Perches int br_sysfs_addbr(struct net_device *dev); 815348662a1SJoe Perches void br_sysfs_delbr(struct net_device *dev); 8161da177e4SLinus Torvalds 8171da177e4SLinus Torvalds #else 8181da177e4SLinus Torvalds 8190cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 8200cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 8210cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 8220cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 8231da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 8241da177e4SLinus Torvalds 8251da177e4SLinus Torvalds #endif 826