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 2111fb1754aSHong Zhiguo static inline struct net_bridge_port *br_port_get_rtnl(const 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 void br_netpoll_send_skb(const struct net_bridge_port *p, 35691d2c34aSHerbert Xu struct sk_buff *skb) 35791d2c34aSHerbert Xu { 35891d2c34aSHerbert Xu struct netpoll *np = p->np; 35991d2c34aSHerbert Xu 36091d2c34aSHerbert Xu if (np) 36191d2c34aSHerbert Xu netpoll_send_skb(np, skb); 36291d2c34aSHerbert Xu } 36391d2c34aSHerbert Xu 36447be03a2SAmerigo Wang extern int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp); 36591d2c34aSHerbert Xu extern void br_netpoll_disable(struct net_bridge_port *p); 36691d2c34aSHerbert Xu #else 3679f70b0fcSHerbert Xu static inline void br_netpoll_send_skb(const struct net_bridge_port *p, 36891d2c34aSHerbert Xu struct sk_buff *skb) 36991d2c34aSHerbert Xu { 37091d2c34aSHerbert Xu } 37191d2c34aSHerbert Xu 37247be03a2SAmerigo Wang static inline int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp) 37391d2c34aSHerbert Xu { 37491d2c34aSHerbert Xu return 0; 37591d2c34aSHerbert Xu } 37691d2c34aSHerbert Xu 37791d2c34aSHerbert Xu static inline void br_netpoll_disable(struct net_bridge_port *p) 37891d2c34aSHerbert Xu { 37991d2c34aSHerbert Xu } 380cfb478daSstephen hemminger #endif 3811da177e4SLinus Torvalds 3821da177e4SLinus Torvalds /* br_fdb.c */ 38387a596e0SAkinobu Mita extern int br_fdb_init(void); 3841da177e4SLinus Torvalds extern void br_fdb_fini(void); 3859cf63747SStephen Hemminger extern void br_fdb_flush(struct net_bridge *br); 3861da177e4SLinus Torvalds extern void br_fdb_changeaddr(struct net_bridge_port *p, 3871da177e4SLinus Torvalds const unsigned char *newaddr); 38843598813Sstephen hemminger extern void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); 3891da177e4SLinus Torvalds extern void br_fdb_cleanup(unsigned long arg); 3901da177e4SLinus Torvalds extern void br_fdb_delete_by_port(struct net_bridge *br, 3911a620698SStephen Hemminger const struct net_bridge_port *p, int do_all); 3921da177e4SLinus Torvalds extern struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, 3932ba071ecSVlad Yasevich const unsigned char *addr, 3942ba071ecSVlad Yasevich __u16 vid); 395da678292SMichał Mirosław extern int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); 3961da177e4SLinus Torvalds extern int br_fdb_fillbuf(struct net_bridge *br, void *buf, 3971da177e4SLinus Torvalds unsigned long count, unsigned long off); 3981da177e4SLinus Torvalds extern int br_fdb_insert(struct net_bridge *br, 3991da177e4SLinus Torvalds struct net_bridge_port *source, 400bc9a25d2SVlad Yasevich const unsigned char *addr, 401bc9a25d2SVlad Yasevich u16 vid); 4021da177e4SLinus Torvalds extern void br_fdb_update(struct net_bridge *br, 4031da177e4SLinus Torvalds struct net_bridge_port *source, 4042ba071ecSVlad Yasevich const unsigned char *addr, 4052ba071ecSVlad Yasevich u16 vid); 406bc9a25d2SVlad Yasevich extern int fdb_delete_by_addr(struct net_bridge *br, const u8 *addr, u16 vid); 40777162022SJohn Fastabend 4081690be63SVlad Yasevich extern int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], 40977162022SJohn Fastabend struct net_device *dev, 4106b6e2725Sstephen hemminger const unsigned char *addr); 411edc7d573Sstephen hemminger extern int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], 41277162022SJohn Fastabend struct net_device *dev, 4136b6e2725Sstephen hemminger const unsigned char *addr, 41477162022SJohn Fastabend u16 nlh_flags); 41577162022SJohn Fastabend extern int br_fdb_dump(struct sk_buff *skb, 41677162022SJohn Fastabend struct netlink_callback *cb, 41777162022SJohn Fastabend struct net_device *dev, 41877162022SJohn Fastabend int idx); 4191da177e4SLinus Torvalds 4201da177e4SLinus Torvalds /* br_forward.c */ 4211da177e4SLinus Torvalds extern void br_deliver(const struct net_bridge_port *to, 4221da177e4SLinus Torvalds struct sk_buff *skb); 4231da177e4SLinus Torvalds extern int br_dev_queue_push_xmit(struct sk_buff *skb); 4241da177e4SLinus Torvalds extern void br_forward(const struct net_bridge_port *to, 4257f7708f0SMichael Braun struct sk_buff *skb, struct sk_buff *skb0); 4261da177e4SLinus Torvalds extern int br_forward_finish(struct sk_buff *skb); 427867a5943SVlad Yasevich extern void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, 428867a5943SVlad Yasevich bool unicast); 429b33084beSHerbert Xu extern void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, 430867a5943SVlad Yasevich struct sk_buff *skb2, bool unicast); 4311da177e4SLinus Torvalds 4321da177e4SLinus Torvalds /* br_if.c */ 433269def7cSStephen Hemminger extern void br_port_carrier_check(struct net_bridge_port *p); 4344aa678baSAlexey Dobriyan extern int br_add_bridge(struct net *net, const char *name); 4354aa678baSAlexey Dobriyan extern int br_del_bridge(struct net *net, const char *name); 436712d6954SAlexey Dobriyan extern void br_net_exit(struct net *net); 4371da177e4SLinus Torvalds extern int br_add_if(struct net_bridge *br, 4381da177e4SLinus Torvalds struct net_device *dev); 4391da177e4SLinus Torvalds extern int br_del_if(struct net_bridge *br, 4401da177e4SLinus Torvalds struct net_device *dev); 4411da177e4SLinus Torvalds extern int br_min_mtu(const struct net_bridge *br); 442c8f44affSMichał Mirosław extern netdev_features_t br_features_recompute(struct net_bridge *br, 443c8f44affSMichał Mirosław netdev_features_t features); 4441da177e4SLinus Torvalds 4451da177e4SLinus Torvalds /* br_input.c */ 4461da177e4SLinus Torvalds extern int br_handle_frame_finish(struct sk_buff *skb); 4478a4eb573SJiri Pirko extern rx_handler_result_t br_handle_frame(struct sk_buff **pskb); 4481da177e4SLinus Torvalds 4491da177e4SLinus Torvalds /* br_ioctl.c */ 4501da177e4SLinus Torvalds extern int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); 451881d966bSEric W. Biederman extern int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __user *arg); 4521da177e4SLinus Torvalds 453eb1d1641SHerbert Xu /* br_multicast.c */ 454eb1d1641SHerbert Xu #ifdef CONFIG_BRIDGE_IGMP_SNOOPING 4552ce297fcSCong Wang extern unsigned int br_mdb_rehash_seq; 456eb1d1641SHerbert Xu extern int br_multicast_rcv(struct net_bridge *br, 457eb1d1641SHerbert Xu struct net_bridge_port *port, 458eb1d1641SHerbert Xu struct sk_buff *skb); 459eb1d1641SHerbert Xu extern struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, 460fbca58a2SCong Wang struct sk_buff *skb, u16 vid); 461eb1d1641SHerbert Xu extern void br_multicast_add_port(struct net_bridge_port *port); 462eb1d1641SHerbert Xu extern void br_multicast_del_port(struct net_bridge_port *port); 463eb1d1641SHerbert Xu extern void br_multicast_enable_port(struct net_bridge_port *port); 464eb1d1641SHerbert Xu extern void br_multicast_disable_port(struct net_bridge_port *port); 465eb1d1641SHerbert Xu extern void br_multicast_init(struct net_bridge *br); 466eb1d1641SHerbert Xu extern void br_multicast_open(struct net_bridge *br); 467eb1d1641SHerbert Xu extern void br_multicast_stop(struct net_bridge *br); 4685cb5e947SHerbert Xu extern void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, 4695cb5e947SHerbert Xu struct sk_buff *skb); 4705cb5e947SHerbert Xu extern void br_multicast_forward(struct net_bridge_mdb_entry *mdst, 4715cb5e947SHerbert Xu struct sk_buff *skb, struct sk_buff *skb2); 4720909e117SHerbert Xu extern int br_multicast_set_router(struct net_bridge *br, unsigned long val); 4730909e117SHerbert Xu extern int br_multicast_set_port_router(struct net_bridge_port *p, 4740909e117SHerbert Xu unsigned long val); 475561f1103SHerbert Xu extern int br_multicast_toggle(struct net_bridge *br, unsigned long val); 476c5c23260SHerbert Xu extern int br_multicast_set_querier(struct net_bridge *br, unsigned long val); 477b195167fSHerbert Xu extern int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); 478cfd56754SCong Wang extern struct net_bridge_mdb_entry *br_mdb_ip_get( 479cfd56754SCong Wang struct net_bridge_mdb_htable *mdb, 480cfd56754SCong Wang struct br_ip *dst); 481cfd56754SCong Wang extern struct net_bridge_mdb_entry *br_multicast_new_group(struct net_bridge *br, 482cfd56754SCong Wang struct net_bridge_port *port, struct br_ip *group); 483cfd56754SCong Wang extern void br_multicast_free_pg(struct rcu_head *head); 484cfd56754SCong Wang extern struct net_bridge_port_group *br_multicast_new_port_group( 485cfd56754SCong Wang struct net_bridge_port *port, 486cfd56754SCong Wang struct br_ip *group, 487762a3d89Sstephen hemminger struct net_bridge_port_group __rcu *next, 488ccb1c31aSAmerigo Wang unsigned char state); 489ee07c6e7SCong Wang extern void br_mdb_init(void); 49063233159SVlad Yasevich extern void br_mdb_uninit(void); 49137a393bcSCong Wang extern void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, 49237a393bcSCong Wang struct br_ip *group, int type); 49385b35269SSridhar Samudrala 494cfd56754SCong Wang #define mlock_dereference(X, br) \ 495cfd56754SCong Wang rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) 496cfd56754SCong Wang 49785b35269SSridhar Samudrala static inline bool br_multicast_is_router(struct net_bridge *br) 49885b35269SSridhar Samudrala { 49985b35269SSridhar Samudrala return br->multicast_router == 2 || 50085b35269SSridhar Samudrala (br->multicast_router == 1 && 50185b35269SSridhar Samudrala timer_pending(&br->multicast_router_timer)); 50285b35269SSridhar Samudrala } 503b00589afSLinus Lüssing 504cc0fdd80SLinus Lüssing static inline bool 505cc0fdd80SLinus Lüssing __br_multicast_querier_exists(struct net_bridge *br, 506cc0fdd80SLinus Lüssing struct bridge_mcast_querier *querier) 507b00589afSLinus Lüssing { 508cc0fdd80SLinus Lüssing return time_is_before_jiffies(querier->delay_time) && 509cc0fdd80SLinus Lüssing (br->multicast_querier || timer_pending(&querier->timer)); 510cc0fdd80SLinus Lüssing } 511cc0fdd80SLinus Lüssing 512cc0fdd80SLinus Lüssing static inline bool br_multicast_querier_exists(struct net_bridge *br, 513cc0fdd80SLinus Lüssing struct ethhdr *eth) 514cc0fdd80SLinus Lüssing { 515cc0fdd80SLinus Lüssing switch (eth->h_proto) { 516cc0fdd80SLinus Lüssing case (htons(ETH_P_IP)): 517cc0fdd80SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip4_querier); 518cc0fdd80SLinus Lüssing #if IS_ENABLED(CONFIG_IPV6) 519cc0fdd80SLinus Lüssing case (htons(ETH_P_IPV6)): 520cc0fdd80SLinus Lüssing return __br_multicast_querier_exists(br, &br->ip6_querier); 521cc0fdd80SLinus Lüssing #endif 522cc0fdd80SLinus Lüssing default: 523cc0fdd80SLinus Lüssing return false; 524cc0fdd80SLinus Lüssing } 525b00589afSLinus Lüssing } 526eb1d1641SHerbert Xu #else 527eb1d1641SHerbert Xu static inline int br_multicast_rcv(struct net_bridge *br, 528eb1d1641SHerbert Xu struct net_bridge_port *port, 529eb1d1641SHerbert Xu struct sk_buff *skb) 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 597a37b85c9SVlad Yasevich extern bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v, 59878851988SVlad Yasevich struct sk_buff *skb, u16 *vid); 59985f46c6bSVlad Yasevich extern bool br_allowed_egress(struct net_bridge *br, 60085f46c6bSVlad Yasevich const struct net_port_vlans *v, 60185f46c6bSVlad Yasevich const struct sk_buff *skb); 60278851988SVlad Yasevich extern struct sk_buff *br_handle_vlan(struct net_bridge *br, 60378851988SVlad Yasevich const struct net_port_vlans *v, 60478851988SVlad Yasevich struct sk_buff *skb); 605552406c4SVlad Yasevich extern int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); 606243a2e63SVlad Yasevich extern int br_vlan_delete(struct net_bridge *br, u16 vid); 607243a2e63SVlad Yasevich extern void br_vlan_flush(struct net_bridge *br); 608243a2e63SVlad Yasevich extern int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); 609552406c4SVlad Yasevich extern int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); 610243a2e63SVlad Yasevich extern int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); 611243a2e63SVlad Yasevich extern void nbp_vlan_flush(struct net_bridge_port *port); 612bc9a25d2SVlad Yasevich extern bool nbp_vlan_find(struct net_bridge_port *port, u16 vid); 613a37b85c9SVlad Yasevich 614a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 615a37b85c9SVlad Yasevich const struct net_bridge *br) 616a37b85c9SVlad Yasevich { 6171690be63SVlad Yasevich return rcu_dereference_rtnl(br->vlan_info); 618a37b85c9SVlad Yasevich } 619a37b85c9SVlad Yasevich 620a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 621a37b85c9SVlad Yasevich const struct net_bridge_port *p) 622a37b85c9SVlad Yasevich { 6231690be63SVlad Yasevich return rcu_dereference_rtnl(p->vlan_info); 624a37b85c9SVlad Yasevich } 625a37b85c9SVlad Yasevich 626a37b85c9SVlad Yasevich /* Since bridge now depends on 8021Q module, but the time bridge sees the 627a37b85c9SVlad Yasevich * skb, the vlan tag will always be present if the frame was tagged. 628a37b85c9SVlad Yasevich */ 629a37b85c9SVlad Yasevich static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) 630a37b85c9SVlad Yasevich { 631a37b85c9SVlad Yasevich int err = 0; 632a37b85c9SVlad Yasevich 633a37b85c9SVlad Yasevich if (vlan_tx_tag_present(skb)) 634a37b85c9SVlad Yasevich *vid = vlan_tx_tag_get(skb) & VLAN_VID_MASK; 635a37b85c9SVlad Yasevich else { 636a37b85c9SVlad Yasevich *vid = 0; 637a37b85c9SVlad Yasevich err = -EINVAL; 638a37b85c9SVlad Yasevich } 639a37b85c9SVlad Yasevich 640a37b85c9SVlad Yasevich return err; 641a37b85c9SVlad Yasevich } 64278851988SVlad Yasevich 64378851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 64478851988SVlad Yasevich { 64578851988SVlad Yasevich /* Return just the VID if it is set, or VLAN_N_VID (invalid vid) if 64678851988SVlad Yasevich * vid wasn't set 64778851988SVlad Yasevich */ 64878851988SVlad Yasevich smp_rmb(); 64978851988SVlad Yasevich return (v->pvid & VLAN_TAG_PRESENT) ? 65078851988SVlad Yasevich (v->pvid & ~VLAN_TAG_PRESENT) : 65178851988SVlad Yasevich VLAN_N_VID; 65278851988SVlad Yasevich } 65378851988SVlad Yasevich 654243a2e63SVlad Yasevich #else 655a37b85c9SVlad Yasevich static inline bool br_allowed_ingress(struct net_bridge *br, 656a37b85c9SVlad Yasevich struct net_port_vlans *v, 65778851988SVlad Yasevich struct sk_buff *skb, 65878851988SVlad Yasevich u16 *vid) 659a37b85c9SVlad Yasevich { 660a37b85c9SVlad Yasevich return true; 661a37b85c9SVlad Yasevich } 662a37b85c9SVlad Yasevich 66385f46c6bSVlad Yasevich static inline bool br_allowed_egress(struct net_bridge *br, 66485f46c6bSVlad Yasevich const struct net_port_vlans *v, 66585f46c6bSVlad Yasevich const struct sk_buff *skb) 66685f46c6bSVlad Yasevich { 66785f46c6bSVlad Yasevich return true; 66885f46c6bSVlad Yasevich } 66985f46c6bSVlad Yasevich 67078851988SVlad Yasevich static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, 67178851988SVlad Yasevich const struct net_port_vlans *v, 67278851988SVlad Yasevich struct sk_buff *skb) 67378851988SVlad Yasevich { 67478851988SVlad Yasevich return skb; 67578851988SVlad Yasevich } 67678851988SVlad Yasevich 677552406c4SVlad Yasevich static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) 678243a2e63SVlad Yasevich { 679243a2e63SVlad Yasevich return -EOPNOTSUPP; 680243a2e63SVlad Yasevich } 681243a2e63SVlad Yasevich 682243a2e63SVlad Yasevich static inline int br_vlan_delete(struct net_bridge *br, u16 vid) 683243a2e63SVlad Yasevich { 684243a2e63SVlad Yasevich return -EOPNOTSUPP; 685243a2e63SVlad Yasevich } 686243a2e63SVlad Yasevich 687243a2e63SVlad Yasevich static inline void br_vlan_flush(struct net_bridge *br) 688243a2e63SVlad Yasevich { 689243a2e63SVlad Yasevich } 690243a2e63SVlad Yasevich 691552406c4SVlad Yasevich static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) 692243a2e63SVlad Yasevich { 693243a2e63SVlad Yasevich return -EOPNOTSUPP; 694243a2e63SVlad Yasevich } 695243a2e63SVlad Yasevich 696243a2e63SVlad Yasevich static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) 697243a2e63SVlad Yasevich { 698243a2e63SVlad Yasevich return -EOPNOTSUPP; 699243a2e63SVlad Yasevich } 700243a2e63SVlad Yasevich 701243a2e63SVlad Yasevich static inline void nbp_vlan_flush(struct net_bridge_port *port) 702243a2e63SVlad Yasevich { 703243a2e63SVlad Yasevich } 704243a2e63SVlad Yasevich 705a37b85c9SVlad Yasevich static inline struct net_port_vlans *br_get_vlan_info( 706a37b85c9SVlad Yasevich const struct net_bridge *br) 707a37b85c9SVlad Yasevich { 708a37b85c9SVlad Yasevich return NULL; 709a37b85c9SVlad Yasevich } 710a37b85c9SVlad Yasevich static inline struct net_port_vlans *nbp_get_vlan_info( 711a37b85c9SVlad Yasevich const struct net_bridge_port *p) 712a37b85c9SVlad Yasevich { 713a37b85c9SVlad Yasevich return NULL; 714a37b85c9SVlad Yasevich } 715a37b85c9SVlad Yasevich 716bc9a25d2SVlad Yasevich static inline bool nbp_vlan_find(struct net_bridge_port *port, u16 vid) 717bc9a25d2SVlad Yasevich { 718bc9a25d2SVlad Yasevich return false; 719bc9a25d2SVlad Yasevich } 720bc9a25d2SVlad Yasevich 72178851988SVlad Yasevich static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) 722a37b85c9SVlad Yasevich { 723a37b85c9SVlad Yasevich return 0; 724a37b85c9SVlad Yasevich } 72578851988SVlad Yasevich static inline u16 br_get_pvid(const struct net_port_vlans *v) 72678851988SVlad Yasevich { 72778851988SVlad Yasevich return VLAN_N_VID; /* Returns invalid vid */ 72878851988SVlad Yasevich } 729243a2e63SVlad Yasevich #endif 730243a2e63SVlad Yasevich 7311da177e4SLinus Torvalds /* br_netfilter.c */ 732c0909713SStephen Hemminger #ifdef CONFIG_BRIDGE_NETFILTER 7331da177e4SLinus Torvalds extern int br_netfilter_init(void); 7341da177e4SLinus Torvalds extern void br_netfilter_fini(void); 7354adf0af6SSimon Wunderlich extern void br_netfilter_rtable_init(struct net_bridge *); 736c0909713SStephen Hemminger #else 737c0909713SStephen Hemminger #define br_netfilter_init() (0) 738c0909713SStephen Hemminger #define br_netfilter_fini() do { } while(0) 7394adf0af6SSimon Wunderlich #define br_netfilter_rtable_init(x) 740c0909713SStephen Hemminger #endif 7411da177e4SLinus Torvalds 7421da177e4SLinus Torvalds /* br_stp.c */ 7431da177e4SLinus Torvalds extern void br_log_state(const struct net_bridge_port *p); 7441da177e4SLinus Torvalds extern struct net_bridge_port *br_get_port(struct net_bridge *br, 7451da177e4SLinus Torvalds u16 port_no); 7461da177e4SLinus Torvalds extern void br_init_port(struct net_bridge_port *p); 7471da177e4SLinus Torvalds extern void br_become_designated_port(struct net_bridge_port *p); 7481da177e4SLinus Torvalds 749be4f154dSHerbert Xu extern void __br_set_forward_delay(struct net_bridge *br, unsigned long t); 75014f98f25Sstephen hemminger extern int br_set_forward_delay(struct net_bridge *br, unsigned long x); 75114f98f25Sstephen hemminger extern int br_set_hello_time(struct net_bridge *br, unsigned long x); 75214f98f25Sstephen hemminger extern int br_set_max_age(struct net_bridge *br, unsigned long x); 75314f98f25Sstephen hemminger 75414f98f25Sstephen hemminger 7551da177e4SLinus Torvalds /* br_stp_if.c */ 7561da177e4SLinus Torvalds extern void br_stp_enable_bridge(struct net_bridge *br); 7571da177e4SLinus Torvalds extern void br_stp_disable_bridge(struct net_bridge *br); 7589cde0708SStephen Hemminger extern void br_stp_set_enabled(struct net_bridge *br, unsigned long val); 7591da177e4SLinus Torvalds extern void br_stp_enable_port(struct net_bridge_port *p); 7601da177e4SLinus Torvalds extern void br_stp_disable_port(struct net_bridge_port *p); 761edf947f1Sstephen hemminger extern bool br_stp_recalculate_bridge_id(struct net_bridge *br); 7624505a3efSStephen Hemminger extern void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); 7631da177e4SLinus Torvalds extern void br_stp_set_bridge_priority(struct net_bridge *br, 7641da177e4SLinus Torvalds u16 newprio); 76514f98f25Sstephen hemminger extern int br_stp_set_port_priority(struct net_bridge_port *p, 76614f98f25Sstephen hemminger unsigned long newprio); 76714f98f25Sstephen hemminger extern int br_stp_set_path_cost(struct net_bridge_port *p, 76814f98f25Sstephen hemminger unsigned long path_cost); 7691da177e4SLinus Torvalds extern ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); 7701da177e4SLinus Torvalds 7711da177e4SLinus Torvalds /* br_stp_bpdu.c */ 7727c85fbf0SPatrick McHardy struct stp_proto; 7737c85fbf0SPatrick McHardy extern void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, 7747c85fbf0SPatrick McHardy struct net_device *dev); 7751da177e4SLinus Torvalds 7761da177e4SLinus Torvalds /* br_stp_timer.c */ 7771da177e4SLinus Torvalds extern void br_stp_timer_init(struct net_bridge *br); 7781da177e4SLinus Torvalds extern void br_stp_port_timer_init(struct net_bridge_port *p); 7791da177e4SLinus Torvalds extern unsigned long br_timer_value(const struct timer_list *timer); 7801da177e4SLinus Torvalds 7811da177e4SLinus Torvalds /* br.c */ 782e6373c4cSIgor Maravić #if IS_ENABLED(CONFIG_ATM_LANE) 783da678292SMichał Mirosław extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); 784da678292SMichał Mirosław #endif 7851da177e4SLinus Torvalds 78611dc1f36SStephen Hemminger /* br_netlink.c */ 787149ddd83Sstephen hemminger extern struct rtnl_link_ops br_link_ops; 78832fe21c0SThomas Graf extern int br_netlink_init(void); 78911dc1f36SStephen Hemminger extern void br_netlink_fini(void); 79011dc1f36SStephen Hemminger extern void br_ifinfo_notify(int event, struct net_bridge_port *port); 791e5a55a89SJohn Fastabend extern int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg); 792407af329SVlad Yasevich extern int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg); 793e5a55a89SJohn Fastabend extern int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, 7946cbdceebSVlad Yasevich struct net_device *dev, u32 filter_mask); 79511dc1f36SStephen Hemminger 7961da177e4SLinus Torvalds #ifdef CONFIG_SYSFS 7971da177e4SLinus Torvalds /* br_sysfs_if.c */ 79852cf25d0SEmese Revfy extern const struct sysfs_ops brport_sysfs_ops; 7991da177e4SLinus Torvalds extern int br_sysfs_addif(struct net_bridge_port *p); 800e0f43752SSimon Arlott extern int br_sysfs_renameif(struct net_bridge_port *p); 8011da177e4SLinus Torvalds 8021da177e4SLinus Torvalds /* br_sysfs_br.c */ 8031da177e4SLinus Torvalds extern int br_sysfs_addbr(struct net_device *dev); 8041da177e4SLinus Torvalds extern void br_sysfs_delbr(struct net_device *dev); 8051da177e4SLinus Torvalds 8061da177e4SLinus Torvalds #else 8071da177e4SLinus Torvalds 8080cb2bbbeSLee Jones static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } 8090cb2bbbeSLee Jones static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } 8100cb2bbbeSLee Jones static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } 8110cb2bbbeSLee Jones static inline void br_sysfs_delbr(struct net_device *dev) { return; } 8121da177e4SLinus Torvalds #endif /* CONFIG_SYSFS */ 8131da177e4SLinus Torvalds 8141da177e4SLinus Torvalds #endif 815