fix a kmap leak in virtio_console
[linux/fpc-iii.git] / net / bridge / br_private.h
blobfcd12333c59b319de7c11c1ddc86214195725e46
1 /*
2 * Linux ethernet bridge
4 * Authors:
5 * Lennert Buytenhek <buytenh@gnu.org>
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version
10 * 2 of the License, or (at your option) any later version.
13 #ifndef _BR_PRIVATE_H
14 #define _BR_PRIVATE_H
16 #include <linux/netdevice.h>
17 #include <linux/if_bridge.h>
18 #include <linux/netpoll.h>
19 #include <linux/u64_stats_sync.h>
20 #include <net/route.h>
21 #include <linux/if_vlan.h>
23 #define BR_HASH_BITS 8
24 #define BR_HASH_SIZE (1 << BR_HASH_BITS)
26 #define BR_HOLD_TIME (1*HZ)
28 #define BR_PORT_BITS 10
29 #define BR_MAX_PORTS (1<<BR_PORT_BITS)
30 #define BR_VLAN_BITMAP_LEN BITS_TO_LONGS(VLAN_N_VID)
32 #define BR_VERSION "2.3"
34 /* Control of forwarding link local multicast */
35 #define BR_GROUPFWD_DEFAULT 0
36 /* Don't allow forwarding control protocols like STP and LLDP */
37 #define BR_GROUPFWD_RESTRICTED 0x4007u
39 /* Path to usermode spanning tree program */
40 #define BR_STP_PROG "/sbin/bridge-stp"
42 typedef struct bridge_id bridge_id;
43 typedef struct mac_addr mac_addr;
44 typedef __u16 port_id;
46 struct bridge_id
48 unsigned char prio[2];
49 unsigned char addr[6];
52 struct mac_addr
54 unsigned char addr[6];
57 struct br_ip
59 union {
60 __be32 ip4;
61 #if IS_ENABLED(CONFIG_IPV6)
62 struct in6_addr ip6;
63 #endif
64 } u;
65 __be16 proto;
66 __u16 vid;
69 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
70 /* our own querier */
71 struct bridge_mcast_query {
72 struct timer_list timer;
73 u32 startup_sent;
76 /* other querier */
77 struct bridge_mcast_querier {
78 struct timer_list timer;
79 unsigned long delay_time;
81 #endif
83 struct net_port_vlans {
84 u16 port_idx;
85 u16 pvid;
86 union {
87 struct net_bridge_port *port;
88 struct net_bridge *br;
89 } parent;
90 struct rcu_head rcu;
91 unsigned long vlan_bitmap[BR_VLAN_BITMAP_LEN];
92 unsigned long untagged_bitmap[BR_VLAN_BITMAP_LEN];
93 u16 num_vlans;
96 struct net_bridge_fdb_entry
98 struct hlist_node hlist;
99 struct net_bridge_port *dst;
101 struct rcu_head rcu;
102 unsigned long updated;
103 unsigned long used;
104 mac_addr addr;
105 unsigned char is_local;
106 unsigned char is_static;
107 __u16 vlan_id;
110 struct net_bridge_port_group {
111 struct net_bridge_port *port;
112 struct net_bridge_port_group __rcu *next;
113 struct hlist_node mglist;
114 struct rcu_head rcu;
115 struct timer_list timer;
116 struct br_ip addr;
117 unsigned char state;
120 struct net_bridge_mdb_entry
122 struct hlist_node hlist[2];
123 struct net_bridge *br;
124 struct net_bridge_port_group __rcu *ports;
125 struct rcu_head rcu;
126 struct timer_list timer;
127 struct br_ip addr;
128 bool mglist;
131 struct net_bridge_mdb_htable
133 struct hlist_head *mhash;
134 struct rcu_head rcu;
135 struct net_bridge_mdb_htable *old;
136 u32 size;
137 u32 max;
138 u32 secret;
139 u32 ver;
142 struct net_bridge_port
144 struct net_bridge *br;
145 struct net_device *dev;
146 struct list_head list;
148 /* STP */
149 u8 priority;
150 u8 state;
151 u16 port_no;
152 unsigned char topology_change_ack;
153 unsigned char config_pending;
154 port_id port_id;
155 port_id designated_port;
156 bridge_id designated_root;
157 bridge_id designated_bridge;
158 u32 path_cost;
159 u32 designated_cost;
160 unsigned long designated_age;
162 struct timer_list forward_delay_timer;
163 struct timer_list hold_timer;
164 struct timer_list message_age_timer;
165 struct kobject kobj;
166 struct rcu_head rcu;
168 unsigned long flags;
169 #define BR_HAIRPIN_MODE 0x00000001
170 #define BR_BPDU_GUARD 0x00000002
171 #define BR_ROOT_BLOCK 0x00000004
172 #define BR_MULTICAST_FAST_LEAVE 0x00000008
173 #define BR_ADMIN_COST 0x00000010
174 #define BR_LEARNING 0x00000020
175 #define BR_FLOOD 0x00000040
177 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
178 struct bridge_mcast_query ip4_query;
179 #if IS_ENABLED(CONFIG_IPV6)
180 struct bridge_mcast_query ip6_query;
181 #endif /* IS_ENABLED(CONFIG_IPV6) */
182 unsigned char multicast_router;
183 struct timer_list multicast_router_timer;
184 struct hlist_head mglist;
185 struct hlist_node rlist;
186 #endif
188 #ifdef CONFIG_SYSFS
189 char sysfs_name[IFNAMSIZ];
190 #endif
192 #ifdef CONFIG_NET_POLL_CONTROLLER
193 struct netpoll *np;
194 #endif
195 #ifdef CONFIG_BRIDGE_VLAN_FILTERING
196 struct net_port_vlans __rcu *vlan_info;
197 #endif
200 #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT)
202 static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev)
204 return rcu_dereference(dev->rx_handler_data);
207 static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev)
209 return br_port_exists(dev) ?
210 rtnl_dereference(dev->rx_handler_data) : NULL;
213 struct net_bridge
215 spinlock_t lock;
216 struct list_head port_list;
217 struct net_device *dev;
219 struct pcpu_sw_netstats __percpu *stats;
220 spinlock_t hash_lock;
221 struct hlist_head hash[BR_HASH_SIZE];
222 #ifdef CONFIG_BRIDGE_NETFILTER
223 struct rtable fake_rtable;
224 bool nf_call_iptables;
225 bool nf_call_ip6tables;
226 bool nf_call_arptables;
227 #endif
228 u16 group_fwd_mask;
230 /* STP */
231 bridge_id designated_root;
232 bridge_id bridge_id;
233 u32 root_path_cost;
234 unsigned long max_age;
235 unsigned long hello_time;
236 unsigned long forward_delay;
237 unsigned long bridge_max_age;
238 unsigned long ageing_time;
239 unsigned long bridge_hello_time;
240 unsigned long bridge_forward_delay;
242 u8 group_addr[ETH_ALEN];
243 u16 root_port;
245 enum {
246 BR_NO_STP, /* no spanning tree */
247 BR_KERNEL_STP, /* old STP in kernel */
248 BR_USER_STP, /* new RSTP in userspace */
249 } stp_enabled;
251 unsigned char topology_change;
252 unsigned char topology_change_detected;
254 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
255 unsigned char multicast_router;
257 u8 multicast_disabled:1;
258 u8 multicast_querier:1;
259 u8 multicast_query_use_ifaddr:1;
261 u32 hash_elasticity;
262 u32 hash_max;
264 u32 multicast_last_member_count;
265 u32 multicast_startup_query_count;
267 unsigned long multicast_last_member_interval;
268 unsigned long multicast_membership_interval;
269 unsigned long multicast_querier_interval;
270 unsigned long multicast_query_interval;
271 unsigned long multicast_query_response_interval;
272 unsigned long multicast_startup_query_interval;
274 spinlock_t multicast_lock;
275 struct net_bridge_mdb_htable __rcu *mdb;
276 struct hlist_head router_list;
278 struct timer_list multicast_router_timer;
279 struct bridge_mcast_querier ip4_querier;
280 struct bridge_mcast_query ip4_query;
281 #if IS_ENABLED(CONFIG_IPV6)
282 struct bridge_mcast_querier ip6_querier;
283 struct bridge_mcast_query ip6_query;
284 #endif /* IS_ENABLED(CONFIG_IPV6) */
285 #endif
287 struct timer_list hello_timer;
288 struct timer_list tcn_timer;
289 struct timer_list topology_change_timer;
290 struct timer_list gc_timer;
291 struct kobject *ifobj;
292 #ifdef CONFIG_BRIDGE_VLAN_FILTERING
293 u8 vlan_enabled;
294 struct net_port_vlans __rcu *vlan_info;
295 #endif
298 struct br_input_skb_cb {
299 struct net_device *brdev;
300 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
301 int igmp;
302 int mrouters_only;
303 #endif
306 #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb)
308 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
309 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only)
310 #else
311 # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0)
312 #endif
314 #define br_printk(level, br, format, args...) \
315 printk(level "%s: " format, (br)->dev->name, ##args)
317 #define br_err(__br, format, args...) \
318 br_printk(KERN_ERR, __br, format, ##args)
319 #define br_warn(__br, format, args...) \
320 br_printk(KERN_WARNING, __br, format, ##args)
321 #define br_notice(__br, format, args...) \
322 br_printk(KERN_NOTICE, __br, format, ##args)
323 #define br_info(__br, format, args...) \
324 br_printk(KERN_INFO, __br, format, ##args)
326 #define br_debug(br, format, args...) \
327 pr_debug("%s: " format, (br)->dev->name, ##args)
329 extern struct notifier_block br_device_notifier;
331 /* called under bridge lock */
332 static inline int br_is_root_bridge(const struct net_bridge *br)
334 return !memcmp(&br->bridge_id, &br->designated_root, 8);
337 /* br_device.c */
338 void br_dev_setup(struct net_device *dev);
339 void br_dev_delete(struct net_device *dev, struct list_head *list);
340 netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev);
341 #ifdef CONFIG_NET_POLL_CONTROLLER
342 static inline void br_netpoll_send_skb(const struct net_bridge_port *p,
343 struct sk_buff *skb)
345 struct netpoll *np = p->np;
347 if (np)
348 netpoll_send_skb(np, skb);
351 int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp);
352 void br_netpoll_disable(struct net_bridge_port *p);
353 #else
354 static inline void br_netpoll_send_skb(const struct net_bridge_port *p,
355 struct sk_buff *skb)
359 static inline int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp)
361 return 0;
364 static inline void br_netpoll_disable(struct net_bridge_port *p)
367 #endif
369 /* br_fdb.c */
370 int br_fdb_init(void);
371 void br_fdb_fini(void);
372 void br_fdb_flush(struct net_bridge *br);
373 void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr);
374 void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr);
375 void br_fdb_cleanup(unsigned long arg);
376 void br_fdb_delete_by_port(struct net_bridge *br,
377 const struct net_bridge_port *p, int do_all);
378 struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br,
379 const unsigned char *addr, __u16 vid);
380 int br_fdb_test_addr(struct net_device *dev, unsigned char *addr);
381 int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count,
382 unsigned long off);
383 int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source,
384 const unsigned char *addr, u16 vid);
385 void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source,
386 const unsigned char *addr, u16 vid);
387 int fdb_delete_by_addr(struct net_bridge *br, const u8 *addr, u16 vid);
389 int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[],
390 struct net_device *dev, const unsigned char *addr);
391 int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev,
392 const unsigned char *addr, u16 nlh_flags);
393 int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
394 struct net_device *dev, int idx);
396 /* br_forward.c */
397 void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb);
398 int br_dev_queue_push_xmit(struct sk_buff *skb);
399 void br_forward(const struct net_bridge_port *to,
400 struct sk_buff *skb, struct sk_buff *skb0);
401 int br_forward_finish(struct sk_buff *skb);
402 void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast);
403 void br_flood_forward(struct net_bridge *br, struct sk_buff *skb,
404 struct sk_buff *skb2, bool unicast);
406 /* br_if.c */
407 void br_port_carrier_check(struct net_bridge_port *p);
408 int br_add_bridge(struct net *net, const char *name);
409 int br_del_bridge(struct net *net, const char *name);
410 int br_add_if(struct net_bridge *br, struct net_device *dev);
411 int br_del_if(struct net_bridge *br, struct net_device *dev);
412 int br_min_mtu(const struct net_bridge *br);
413 netdev_features_t br_features_recompute(struct net_bridge *br,
414 netdev_features_t features);
416 /* br_input.c */
417 int br_handle_frame_finish(struct sk_buff *skb);
418 rx_handler_result_t br_handle_frame(struct sk_buff **pskb);
420 static inline bool br_rx_handler_check_rcu(const struct net_device *dev)
422 return rcu_dereference(dev->rx_handler) == br_handle_frame;
425 static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev)
427 return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL;
430 /* br_ioctl.c */
431 int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
432 int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd,
433 void __user *arg);
435 /* br_multicast.c */
436 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
437 extern unsigned int br_mdb_rehash_seq;
438 int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port,
439 struct sk_buff *skb, u16 vid);
440 struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
441 struct sk_buff *skb, u16 vid);
442 void br_multicast_add_port(struct net_bridge_port *port);
443 void br_multicast_del_port(struct net_bridge_port *port);
444 void br_multicast_enable_port(struct net_bridge_port *port);
445 void br_multicast_disable_port(struct net_bridge_port *port);
446 void br_multicast_init(struct net_bridge *br);
447 void br_multicast_open(struct net_bridge *br);
448 void br_multicast_stop(struct net_bridge *br);
449 void br_multicast_deliver(struct net_bridge_mdb_entry *mdst,
450 struct sk_buff *skb);
451 void br_multicast_forward(struct net_bridge_mdb_entry *mdst,
452 struct sk_buff *skb, struct sk_buff *skb2);
453 int br_multicast_set_router(struct net_bridge *br, unsigned long val);
454 int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val);
455 int br_multicast_toggle(struct net_bridge *br, unsigned long val);
456 int br_multicast_set_querier(struct net_bridge *br, unsigned long val);
457 int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val);
458 struct net_bridge_mdb_entry *
459 br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst);
460 struct net_bridge_mdb_entry *
461 br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port,
462 struct br_ip *group);
463 void br_multicast_free_pg(struct rcu_head *head);
464 struct net_bridge_port_group *
465 br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group,
466 struct net_bridge_port_group __rcu *next,
467 unsigned char state);
468 void br_mdb_init(void);
469 void br_mdb_uninit(void);
470 void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port,
471 struct br_ip *group, int type);
473 #define mlock_dereference(X, br) \
474 rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock))
476 static inline bool br_multicast_is_router(struct net_bridge *br)
478 return br->multicast_router == 2 ||
479 (br->multicast_router == 1 &&
480 timer_pending(&br->multicast_router_timer));
483 static inline bool
484 __br_multicast_querier_exists(struct net_bridge *br,
485 struct bridge_mcast_querier *querier)
487 return time_is_before_jiffies(querier->delay_time) &&
488 (br->multicast_querier || timer_pending(&querier->timer));
491 static inline bool br_multicast_querier_exists(struct net_bridge *br,
492 struct ethhdr *eth)
494 switch (eth->h_proto) {
495 case (htons(ETH_P_IP)):
496 return __br_multicast_querier_exists(br, &br->ip4_querier);
497 #if IS_ENABLED(CONFIG_IPV6)
498 case (htons(ETH_P_IPV6)):
499 return __br_multicast_querier_exists(br, &br->ip6_querier);
500 #endif
501 default:
502 return false;
505 #else
506 static inline int br_multicast_rcv(struct net_bridge *br,
507 struct net_bridge_port *port,
508 struct sk_buff *skb,
509 u16 vid)
511 return 0;
514 static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
515 struct sk_buff *skb, u16 vid)
517 return NULL;
520 static inline void br_multicast_add_port(struct net_bridge_port *port)
524 static inline void br_multicast_del_port(struct net_bridge_port *port)
528 static inline void br_multicast_enable_port(struct net_bridge_port *port)
532 static inline void br_multicast_disable_port(struct net_bridge_port *port)
536 static inline void br_multicast_init(struct net_bridge *br)
540 static inline void br_multicast_open(struct net_bridge *br)
544 static inline void br_multicast_stop(struct net_bridge *br)
548 static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst,
549 struct sk_buff *skb)
553 static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst,
554 struct sk_buff *skb,
555 struct sk_buff *skb2)
558 static inline bool br_multicast_is_router(struct net_bridge *br)
560 return 0;
562 static inline bool br_multicast_querier_exists(struct net_bridge *br,
563 struct ethhdr *eth)
565 return false;
567 static inline void br_mdb_init(void)
570 static inline void br_mdb_uninit(void)
573 #endif
575 /* br_vlan.c */
576 #ifdef CONFIG_BRIDGE_VLAN_FILTERING
577 bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v,
578 struct sk_buff *skb, u16 *vid);
579 bool br_allowed_egress(struct net_bridge *br, const struct net_port_vlans *v,
580 const struct sk_buff *skb);
581 struct sk_buff *br_handle_vlan(struct net_bridge *br,
582 const struct net_port_vlans *v,
583 struct sk_buff *skb);
584 int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags);
585 int br_vlan_delete(struct net_bridge *br, u16 vid);
586 void br_vlan_flush(struct net_bridge *br);
587 int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val);
588 int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags);
589 int nbp_vlan_delete(struct net_bridge_port *port, u16 vid);
590 void nbp_vlan_flush(struct net_bridge_port *port);
591 bool nbp_vlan_find(struct net_bridge_port *port, u16 vid);
593 static inline struct net_port_vlans *br_get_vlan_info(
594 const struct net_bridge *br)
596 return rcu_dereference_rtnl(br->vlan_info);
599 static inline struct net_port_vlans *nbp_get_vlan_info(
600 const struct net_bridge_port *p)
602 return rcu_dereference_rtnl(p->vlan_info);
605 /* Since bridge now depends on 8021Q module, but the time bridge sees the
606 * skb, the vlan tag will always be present if the frame was tagged.
608 static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid)
610 int err = 0;
612 if (vlan_tx_tag_present(skb))
613 *vid = vlan_tx_tag_get(skb) & VLAN_VID_MASK;
614 else {
615 *vid = 0;
616 err = -EINVAL;
619 return err;
622 static inline u16 br_get_pvid(const struct net_port_vlans *v)
624 /* Return just the VID if it is set, or VLAN_N_VID (invalid vid) if
625 * vid wasn't set
627 smp_rmb();
628 return v->pvid ?: VLAN_N_VID;
631 #else
632 static inline bool br_allowed_ingress(struct net_bridge *br,
633 struct net_port_vlans *v,
634 struct sk_buff *skb,
635 u16 *vid)
637 return true;
640 static inline bool br_allowed_egress(struct net_bridge *br,
641 const struct net_port_vlans *v,
642 const struct sk_buff *skb)
644 return true;
647 static inline struct sk_buff *br_handle_vlan(struct net_bridge *br,
648 const struct net_port_vlans *v,
649 struct sk_buff *skb)
651 return skb;
654 static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags)
656 return -EOPNOTSUPP;
659 static inline int br_vlan_delete(struct net_bridge *br, u16 vid)
661 return -EOPNOTSUPP;
664 static inline void br_vlan_flush(struct net_bridge *br)
668 static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags)
670 return -EOPNOTSUPP;
673 static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid)
675 return -EOPNOTSUPP;
678 static inline void nbp_vlan_flush(struct net_bridge_port *port)
682 static inline struct net_port_vlans *br_get_vlan_info(
683 const struct net_bridge *br)
685 return NULL;
687 static inline struct net_port_vlans *nbp_get_vlan_info(
688 const struct net_bridge_port *p)
690 return NULL;
693 static inline bool nbp_vlan_find(struct net_bridge_port *port, u16 vid)
695 return false;
698 static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag)
700 return 0;
702 static inline u16 br_get_pvid(const struct net_port_vlans *v)
704 return VLAN_N_VID; /* Returns invalid vid */
706 #endif
708 /* br_netfilter.c */
709 #ifdef CONFIG_BRIDGE_NETFILTER
710 int br_netfilter_init(void);
711 void br_netfilter_fini(void);
712 void br_netfilter_rtable_init(struct net_bridge *);
713 #else
714 #define br_netfilter_init() (0)
715 #define br_netfilter_fini() do { } while (0)
716 #define br_netfilter_rtable_init(x)
717 #endif
719 /* br_stp.c */
720 void br_log_state(const struct net_bridge_port *p);
721 struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no);
722 void br_init_port(struct net_bridge_port *p);
723 void br_become_designated_port(struct net_bridge_port *p);
725 void __br_set_forward_delay(struct net_bridge *br, unsigned long t);
726 int br_set_forward_delay(struct net_bridge *br, unsigned long x);
727 int br_set_hello_time(struct net_bridge *br, unsigned long x);
728 int br_set_max_age(struct net_bridge *br, unsigned long x);
731 /* br_stp_if.c */
732 void br_stp_enable_bridge(struct net_bridge *br);
733 void br_stp_disable_bridge(struct net_bridge *br);
734 void br_stp_set_enabled(struct net_bridge *br, unsigned long val);
735 void br_stp_enable_port(struct net_bridge_port *p);
736 void br_stp_disable_port(struct net_bridge_port *p);
737 bool br_stp_recalculate_bridge_id(struct net_bridge *br);
738 void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a);
739 void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio);
740 int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio);
741 int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost);
742 ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id);
744 /* br_stp_bpdu.c */
745 struct stp_proto;
746 void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb,
747 struct net_device *dev);
749 /* br_stp_timer.c */
750 void br_stp_timer_init(struct net_bridge *br);
751 void br_stp_port_timer_init(struct net_bridge_port *p);
752 unsigned long br_timer_value(const struct timer_list *timer);
754 /* br.c */
755 #if IS_ENABLED(CONFIG_ATM_LANE)
756 extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr);
757 #endif
759 /* br_netlink.c */
760 extern struct rtnl_link_ops br_link_ops;
761 int br_netlink_init(void);
762 void br_netlink_fini(void);
763 void br_ifinfo_notify(int event, struct net_bridge_port *port);
764 int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg);
765 int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg);
766 int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev,
767 u32 filter_mask);
769 #ifdef CONFIG_SYSFS
770 /* br_sysfs_if.c */
771 extern const struct sysfs_ops brport_sysfs_ops;
772 int br_sysfs_addif(struct net_bridge_port *p);
773 int br_sysfs_renameif(struct net_bridge_port *p);
775 /* br_sysfs_br.c */
776 int br_sysfs_addbr(struct net_device *dev);
777 void br_sysfs_delbr(struct net_device *dev);
779 #else
781 static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; }
782 static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; }
783 static inline int br_sysfs_addbr(struct net_device *dev) { return 0; }
784 static inline void br_sysfs_delbr(struct net_device *dev) { return; }
785 #endif /* CONFIG_SYSFS */
787 #endif