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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Linux ethernet bridge
3 *
4 * Authors:
5 * Lennert Buytenhek <buytenh@gnu.org>
6 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 * 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.
11 */
12
13#ifndef _BR_PRIVATE_H
14#define _BR_PRIVATE_H
15
16#include <linux/netdevice.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070017#include <linux/if_bridge.h>
Herbert Xu91d2c342010-06-10 16:12:50 +000018#include <linux/netpoll.h>
Eric Dumazet406818f2010-06-23 13:00:48 -070019#include <linux/u64_stats_sync.h>
Simon Wunderlich4adf0af2008-07-30 16:27:55 -070020#include <net/route.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070021
22#define BR_HASH_BITS 8
23#define BR_HASH_SIZE (1 << BR_HASH_BITS)
24
25#define BR_HOLD_TIME (1*HZ)
26
27#define BR_PORT_BITS 10
28#define BR_MAX_PORTS (1<<BR_PORT_BITS)
29
Stephen Hemminger9cde0702007-03-21 14:22:44 -070030#define BR_VERSION "2.3"
31
32/* Path to usermode spanning tree program */
33#define BR_STP_PROG "/sbin/bridge-stp"
Stephen Hemminger8cbb512e2005-12-21 19:01:30 -080034
Linus Torvalds1da177e2005-04-16 15:20:36 -070035typedef struct bridge_id bridge_id;
36typedef struct mac_addr mac_addr;
37typedef __u16 port_id;
38
39struct bridge_id
40{
41 unsigned char prio[2];
42 unsigned char addr[6];
43};
44
45struct mac_addr
46{
47 unsigned char addr[6];
48};
49
YOSHIFUJI Hideaki8ef2a9a2010-04-18 12:42:07 +090050struct br_ip
51{
52 union {
53 __be32 ip4;
YOSHIFUJI Hideaki08b202b2010-04-23 01:54:22 +090054#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
55 struct in6_addr ip6;
56#endif
YOSHIFUJI Hideaki8ef2a9a2010-04-18 12:42:07 +090057 } u;
58 __be16 proto;
59};
60
Linus Torvalds1da177e2005-04-16 15:20:36 -070061struct net_bridge_fdb_entry
62{
63 struct hlist_node hlist;
64 struct net_bridge_port *dst;
65
66 struct rcu_head rcu;
Linus Torvalds1da177e2005-04-16 15:20:36 -070067 unsigned long ageing_timer;
68 mac_addr addr;
69 unsigned char is_local;
70 unsigned char is_static;
71};
72
Herbert Xueb1d1642010-02-27 19:41:45 +000073struct net_bridge_port_group {
74 struct net_bridge_port *port;
75 struct net_bridge_port_group *next;
76 struct hlist_node mglist;
77 struct rcu_head rcu;
78 struct timer_list timer;
79 struct timer_list query_timer;
YOSHIFUJI Hideaki8ef2a9a2010-04-18 12:42:07 +090080 struct br_ip addr;
Herbert Xueb1d1642010-02-27 19:41:45 +000081 u32 queries_sent;
82};
83
84struct net_bridge_mdb_entry
85{
86 struct hlist_node hlist[2];
87 struct hlist_node mglist;
88 struct net_bridge *br;
89 struct net_bridge_port_group *ports;
90 struct rcu_head rcu;
91 struct timer_list timer;
92 struct timer_list query_timer;
YOSHIFUJI Hideaki8ef2a9a2010-04-18 12:42:07 +090093 struct br_ip addr;
Herbert Xueb1d1642010-02-27 19:41:45 +000094 u32 queries_sent;
95};
96
97struct net_bridge_mdb_htable
98{
99 struct hlist_head *mhash;
100 struct rcu_head rcu;
101 struct net_bridge_mdb_htable *old;
102 u32 size;
103 u32 max;
104 u32 secret;
105 u32 ver;
106};
107
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108struct net_bridge_port
109{
110 struct net_bridge *br;
111 struct net_device *dev;
112 struct list_head list;
113
114 /* STP */
115 u8 priority;
116 u8 state;
117 u16 port_no;
118 unsigned char topology_change_ack;
119 unsigned char config_pending;
120 port_id port_id;
121 port_id designated_port;
122 bridge_id designated_root;
123 bridge_id designated_bridge;
124 u32 path_cost;
125 u32 designated_cost;
126
127 struct timer_list forward_delay_timer;
128 struct timer_list hold_timer;
129 struct timer_list message_age_timer;
130 struct kobject kobj;
131 struct rcu_head rcu;
Fischer, Anna3982d3d2009-08-13 06:55:16 +0000132
133 unsigned long flags;
134#define BR_HAIRPIN_MODE 0x00000001
Herbert Xueb1d1642010-02-27 19:41:45 +0000135
136#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
137 u32 multicast_startup_queries_sent;
138 unsigned char multicast_router;
139 struct timer_list multicast_router_timer;
140 struct timer_list multicast_query_timer;
141 struct hlist_head mglist;
142 struct hlist_node rlist;
143#endif
Simon Arlotte0f43752010-05-10 09:31:11 +0000144
145#ifdef CONFIG_SYSFS
146 char sysfs_name[IFNAMSIZ];
147#endif
Herbert Xu91d2c342010-06-10 16:12:50 +0000148
149#ifdef CONFIG_NET_POLL_CONTROLLER
150 struct netpoll *np;
151#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152};
153
Jiri Pirkof350a0a82010-06-15 06:50:45 +0000154#define br_port_get_rcu(dev) \
155 ((struct net_bridge_port *) rcu_dereference(dev->rx_handler_data))
156#define br_port_get(dev) ((struct net_bridge_port *) dev->rx_handler_data)
157#define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT)
158
Eric Dumazet0eae88f2010-04-20 19:06:52 -0700159struct br_cpu_netstats {
Eric Dumazet406818f2010-06-23 13:00:48 -0700160 u64 rx_packets;
161 u64 rx_bytes;
162 u64 tx_packets;
163 u64 tx_bytes;
164 struct u64_stats_sync syncp;
Eric Dumazet0eae88f2010-04-20 19:06:52 -0700165};
166
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167struct net_bridge
168{
169 spinlock_t lock;
170 struct list_head port_list;
171 struct net_device *dev;
stephen hemminger14bb4782010-03-02 13:32:09 +0000172
Eric Dumazet0eae88f2010-04-20 19:06:52 -0700173 struct br_cpu_netstats __percpu *stats;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174 spinlock_t hash_lock;
175 struct hlist_head hash[BR_HASH_SIZE];
Stephen Hemmingeredb5e462005-12-21 19:00:58 -0800176 unsigned long feature_mask;
Simon Wunderlich4adf0af2008-07-30 16:27:55 -0700177#ifdef CONFIG_BRIDGE_NETFILTER
178 struct rtable fake_rtable;
179#endif
Stephen Hemminger92c05742008-06-17 16:10:06 -0700180 unsigned long flags;
181#define BR_SET_MAC_ADDR 0x00000001
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182
183 /* STP */
184 bridge_id designated_root;
185 bridge_id bridge_id;
186 u32 root_path_cost;
187 unsigned long max_age;
188 unsigned long hello_time;
189 unsigned long forward_delay;
190 unsigned long bridge_max_age;
191 unsigned long ageing_time;
192 unsigned long bridge_hello_time;
193 unsigned long bridge_forward_delay;
194
Stephen Hemmingerfda93d92006-03-20 22:59:21 -0800195 u8 group_addr[ETH_ALEN];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196 u16 root_port;
Stephen Hemminger9cde0702007-03-21 14:22:44 -0700197
198 enum {
199 BR_NO_STP, /* no spanning tree */
200 BR_KERNEL_STP, /* old STP in kernel */
201 BR_USER_STP, /* new RSTP in userspace */
202 } stp_enabled;
203
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204 unsigned char topology_change;
205 unsigned char topology_change_detected;
206
Herbert Xueb1d1642010-02-27 19:41:45 +0000207#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
208 unsigned char multicast_router;
209
210 u8 multicast_disabled:1;
211
212 u32 hash_elasticity;
213 u32 hash_max;
214
215 u32 multicast_last_member_count;
216 u32 multicast_startup_queries_sent;
217 u32 multicast_startup_query_count;
218
219 unsigned long multicast_last_member_interval;
220 unsigned long multicast_membership_interval;
221 unsigned long multicast_querier_interval;
222 unsigned long multicast_query_interval;
223 unsigned long multicast_query_response_interval;
224 unsigned long multicast_startup_query_interval;
225
226 spinlock_t multicast_lock;
227 struct net_bridge_mdb_htable *mdb;
228 struct hlist_head router_list;
229 struct hlist_head mglist;
230
231 struct timer_list multicast_router_timer;
232 struct timer_list multicast_querier_timer;
233 struct timer_list multicast_query_timer;
234#endif
235
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236 struct timer_list hello_timer;
237 struct timer_list tcn_timer;
238 struct timer_list topology_change_timer;
239 struct timer_list gc_timer;
Greg Kroah-Hartman43b98c42007-12-17 15:54:39 -0400240 struct kobject *ifobj;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241};
242
Herbert Xu68b7c892010-02-27 19:41:40 +0000243struct br_input_skb_cb {
244 struct net_device *brdev;
YOSHIFUJI Hideaki / 吉藤英明32dec5d2010-03-15 21:51:18 +0000245#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
Herbert Xueb1d1642010-02-27 19:41:45 +0000246 int igmp;
247 int mrouters_only;
YOSHIFUJI Hideaki / 吉藤英明32dec5d2010-03-15 21:51:18 +0000248#endif
Herbert Xu68b7c892010-02-27 19:41:40 +0000249};
250
251#define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb)
252
YOSHIFUJI Hideaki / 吉藤英明32dec5d2010-03-15 21:51:18 +0000253#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
254# define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only)
255#else
256# define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0)
257#endif
258
stephen hemminger28a16c92010-05-10 09:31:09 +0000259#define br_printk(level, br, format, args...) \
260 printk(level "%s: " format, (br)->dev->name, ##args)
261
262#define br_err(__br, format, args...) \
263 br_printk(KERN_ERR, __br, format, ##args)
264#define br_warn(__br, format, args...) \
265 br_printk(KERN_WARNING, __br, format, ##args)
266#define br_notice(__br, format, args...) \
267 br_printk(KERN_NOTICE, __br, format, ##args)
268#define br_info(__br, format, args...) \
269 br_printk(KERN_INFO, __br, format, ##args)
270
271#define br_debug(br, format, args...) \
272 pr_debug("%s: " format, (br)->dev->name, ##args)
273
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274extern struct notifier_block br_device_notifier;
Stephen Hemmingerfda93d92006-03-20 22:59:21 -0800275extern const u8 br_group_address[ETH_ALEN];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276
277/* called under bridge lock */
278static inline int br_is_root_bridge(const struct net_bridge *br)
279{
280 return !memcmp(&br->bridge_id, &br->designated_root, 8);
281}
282
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283/* br_device.c */
284extern void br_dev_setup(struct net_device *dev);
Stephen Hemminger6fef4c02009-08-31 19:50:41 +0000285extern netdev_tx_t br_dev_xmit(struct sk_buff *skb,
286 struct net_device *dev);
stephen hemmingercfb478d2010-05-10 09:31:08 +0000287#ifdef CONFIG_NET_POLL_CONTROLLER
Herbert Xu91d2c342010-06-10 16:12:50 +0000288static inline struct netpoll_info *br_netpoll_info(struct net_bridge *br)
289{
290 return br->dev->npinfo;
291}
stephen hemmingercfb478d2010-05-10 09:31:08 +0000292
Herbert Xu91d2c342010-06-10 16:12:50 +0000293static inline void br_netpoll_send_skb(const struct net_bridge_port *p,
294 struct sk_buff *skb)
295{
296 struct netpoll *np = p->np;
297
298 if (np)
299 netpoll_send_skb(np, skb);
300}
301
302extern int br_netpoll_enable(struct net_bridge_port *p);
303extern void br_netpoll_disable(struct net_bridge_port *p);
304#else
305static inline struct netpoll_info *br_netpoll_info(struct net_bridge *br)
306{
307 return NULL;
308}
309
Herbert Xu9f70b0f2010-06-15 21:43:48 -0700310static inline void br_netpoll_send_skb(const struct net_bridge_port *p,
Herbert Xu91d2c342010-06-10 16:12:50 +0000311 struct sk_buff *skb)
312{
313}
314
315static inline int br_netpoll_enable(struct net_bridge_port *p)
316{
317 return 0;
318}
319
320static inline void br_netpoll_disable(struct net_bridge_port *p)
321{
322}
stephen hemmingercfb478d2010-05-10 09:31:08 +0000323#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324
325/* br_fdb.c */
Akinobu Mita87a596e2007-04-07 18:57:07 +0900326extern int br_fdb_init(void);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327extern void br_fdb_fini(void);
Stephen Hemminger9cf63742007-04-09 12:57:54 -0700328extern void br_fdb_flush(struct net_bridge *br);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329extern void br_fdb_changeaddr(struct net_bridge_port *p,
330 const unsigned char *newaddr);
331extern void br_fdb_cleanup(unsigned long arg);
332extern void br_fdb_delete_by_port(struct net_bridge *br,
Stephen Hemminger1a620692006-10-12 14:45:38 -0700333 const struct net_bridge_port *p, int do_all);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700334extern struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br,
335 const unsigned char *addr);
Michał Mirosławda678292009-06-05 05:35:28 +0000336extern int br_fdb_test_addr(struct net_device *dev, unsigned char *addr);
YOSHIFUJI Hideaki9d6f2292007-02-09 23:24:35 +0900337extern int br_fdb_fillbuf(struct net_bridge *br, void *buf,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338 unsigned long count, unsigned long off);
339extern int br_fdb_insert(struct net_bridge *br,
340 struct net_bridge_port *source,
341 const unsigned char *addr);
342extern void br_fdb_update(struct net_bridge *br,
343 struct net_bridge_port *source,
344 const unsigned char *addr);
345
346/* br_forward.c */
347extern void br_deliver(const struct net_bridge_port *to,
348 struct sk_buff *skb);
349extern int br_dev_queue_push_xmit(struct sk_buff *skb);
350extern void br_forward(const struct net_bridge_port *to,
Michael Braun7f7708f2010-03-16 00:26:22 -0700351 struct sk_buff *skb, struct sk_buff *skb0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352extern int br_forward_finish(struct sk_buff *skb);
Herbert Xue081e1e2007-09-16 16:20:48 -0700353extern void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb);
Herbert Xub33084b2010-02-27 19:41:41 +0000354extern void br_flood_forward(struct net_bridge *br, struct sk_buff *skb,
355 struct sk_buff *skb2);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700356
357/* br_if.c */
Stephen Hemminger269def72007-02-22 01:10:18 -0800358extern void br_port_carrier_check(struct net_bridge_port *p);
Alexey Dobriyan4aa678b2008-09-08 16:19:58 -0700359extern int br_add_bridge(struct net *net, const char *name);
360extern int br_del_bridge(struct net *net, const char *name);
Alexey Dobriyan712d6952008-09-08 16:20:18 -0700361extern void br_net_exit(struct net *net);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362extern int br_add_if(struct net_bridge *br,
363 struct net_device *dev);
364extern int br_del_if(struct net_bridge *br,
365 struct net_device *dev);
366extern int br_min_mtu(const struct net_bridge *br);
Stephen Hemminger81d35302005-05-29 14:15:17 -0700367extern void br_features_recompute(struct net_bridge *br);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368
369/* br_input.c */
370extern int br_handle_frame_finish(struct sk_buff *skb);
Jiri Pirkoab95bfe2010-06-01 21:52:08 +0000371extern struct sk_buff *br_handle_frame(struct sk_buff *skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372
373/* br_ioctl.c */
374extern int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
Eric W. Biederman881d9662007-09-17 11:56:21 -0700375extern int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __user *arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376
Herbert Xueb1d1642010-02-27 19:41:45 +0000377/* br_multicast.c */
378#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
379extern int br_multicast_rcv(struct net_bridge *br,
380 struct net_bridge_port *port,
381 struct sk_buff *skb);
382extern struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
383 struct sk_buff *skb);
384extern void br_multicast_add_port(struct net_bridge_port *port);
385extern void br_multicast_del_port(struct net_bridge_port *port);
386extern void br_multicast_enable_port(struct net_bridge_port *port);
387extern void br_multicast_disable_port(struct net_bridge_port *port);
388extern void br_multicast_init(struct net_bridge *br);
389extern void br_multicast_open(struct net_bridge *br);
390extern void br_multicast_stop(struct net_bridge *br);
Herbert Xu5cb5e942010-02-27 19:41:46 +0000391extern void br_multicast_deliver(struct net_bridge_mdb_entry *mdst,
392 struct sk_buff *skb);
393extern void br_multicast_forward(struct net_bridge_mdb_entry *mdst,
394 struct sk_buff *skb, struct sk_buff *skb2);
Herbert Xu0909e112010-02-27 19:41:49 +0000395extern int br_multicast_set_router(struct net_bridge *br, unsigned long val);
396extern int br_multicast_set_port_router(struct net_bridge_port *p,
397 unsigned long val);
Herbert Xu561f1102010-02-27 19:41:50 +0000398extern int br_multicast_toggle(struct net_bridge *br, unsigned long val);
Herbert Xub1951672010-02-27 19:41:51 +0000399extern int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val);
Sridhar Samudrala85b35262010-03-01 09:53:04 +0000400
401static inline bool br_multicast_is_router(struct net_bridge *br)
402{
403 return br->multicast_router == 2 ||
404 (br->multicast_router == 1 &&
405 timer_pending(&br->multicast_router_timer));
406}
Herbert Xueb1d1642010-02-27 19:41:45 +0000407#else
408static inline int br_multicast_rcv(struct net_bridge *br,
409 struct net_bridge_port *port,
410 struct sk_buff *skb)
411{
412 return 0;
413}
414
415static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
416 struct sk_buff *skb)
417{
418 return NULL;
419}
420
421static inline void br_multicast_add_port(struct net_bridge_port *port)
422{
423}
424
425static inline void br_multicast_del_port(struct net_bridge_port *port)
426{
427}
428
429static inline void br_multicast_enable_port(struct net_bridge_port *port)
430{
431}
432
433static inline void br_multicast_disable_port(struct net_bridge_port *port)
434{
435}
436
437static inline void br_multicast_init(struct net_bridge *br)
438{
439}
440
441static inline void br_multicast_open(struct net_bridge *br)
442{
443}
444
445static inline void br_multicast_stop(struct net_bridge *br)
446{
447}
Herbert Xu5cb5e942010-02-27 19:41:46 +0000448
449static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst,
450 struct sk_buff *skb)
451{
452}
453
454static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst,
455 struct sk_buff *skb,
456 struct sk_buff *skb2)
457{
458}
Herbert Xueb1d1642010-02-27 19:41:45 +0000459static inline bool br_multicast_is_router(struct net_bridge *br)
460{
Sridhar Samudrala85b35262010-03-01 09:53:04 +0000461 return 0;
Herbert Xueb1d1642010-02-27 19:41:45 +0000462}
Sridhar Samudrala85b35262010-03-01 09:53:04 +0000463#endif
Herbert Xueb1d1642010-02-27 19:41:45 +0000464
Linus Torvalds1da177e2005-04-16 15:20:36 -0700465/* br_netfilter.c */
Stephen Hemmingerc0909712006-05-25 15:59:33 -0700466#ifdef CONFIG_BRIDGE_NETFILTER
Linus Torvalds1da177e2005-04-16 15:20:36 -0700467extern int br_netfilter_init(void);
468extern void br_netfilter_fini(void);
Simon Wunderlich4adf0af2008-07-30 16:27:55 -0700469extern void br_netfilter_rtable_init(struct net_bridge *);
Stephen Hemmingerc0909712006-05-25 15:59:33 -0700470#else
471#define br_netfilter_init() (0)
472#define br_netfilter_fini() do { } while(0)
Simon Wunderlich4adf0af2008-07-30 16:27:55 -0700473#define br_netfilter_rtable_init(x)
Stephen Hemmingerc0909712006-05-25 15:59:33 -0700474#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700475
476/* br_stp.c */
477extern void br_log_state(const struct net_bridge_port *p);
478extern struct net_bridge_port *br_get_port(struct net_bridge *br,
YOSHIFUJI Hideaki9d6f2292007-02-09 23:24:35 +0900479 u16 port_no);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700480extern void br_init_port(struct net_bridge_port *p);
481extern void br_become_designated_port(struct net_bridge_port *p);
482
483/* br_stp_if.c */
484extern void br_stp_enable_bridge(struct net_bridge *br);
485extern void br_stp_disable_bridge(struct net_bridge *br);
Stephen Hemminger9cde0702007-03-21 14:22:44 -0700486extern void br_stp_set_enabled(struct net_bridge *br, unsigned long val);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700487extern void br_stp_enable_port(struct net_bridge_port *p);
488extern void br_stp_disable_port(struct net_bridge_port *p);
489extern void br_stp_recalculate_bridge_id(struct net_bridge *br);
Stephen Hemminger4505a3e2005-12-21 18:51:49 -0800490extern void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491extern void br_stp_set_bridge_priority(struct net_bridge *br,
492 u16 newprio);
493extern void br_stp_set_port_priority(struct net_bridge_port *p,
494 u8 newprio);
495extern void br_stp_set_path_cost(struct net_bridge_port *p,
496 u32 path_cost);
497extern ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id);
498
499/* br_stp_bpdu.c */
Patrick McHardy7c85fbf2008-07-05 21:25:56 -0700500struct stp_proto;
501extern void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb,
502 struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700503
504/* br_stp_timer.c */
505extern void br_stp_timer_init(struct net_bridge *br);
506extern void br_stp_port_timer_init(struct net_bridge_port *p);
507extern unsigned long br_timer_value(const struct timer_list *timer);
508
509/* br.c */
Michał Mirosławda678292009-06-05 05:35:28 +0000510#if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)
511extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr);
512#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700513
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700514/* br_netlink.c */
Thomas Graf32fe21c2007-03-22 11:59:03 -0700515extern int br_netlink_init(void);
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700516extern void br_netlink_fini(void);
517extern void br_ifinfo_notify(int event, struct net_bridge_port *port);
518
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519#ifdef CONFIG_SYSFS
520/* br_sysfs_if.c */
Emese Revfy52cf25d2010-01-19 02:58:23 +0100521extern const struct sysfs_ops brport_sysfs_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522extern int br_sysfs_addif(struct net_bridge_port *p);
Simon Arlotte0f43752010-05-10 09:31:11 +0000523extern int br_sysfs_renameif(struct net_bridge_port *p);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700524
525/* br_sysfs_br.c */
526extern int br_sysfs_addbr(struct net_device *dev);
527extern void br_sysfs_delbr(struct net_device *dev);
528
529#else
530
531#define br_sysfs_addif(p) (0)
Simon Arlotte0f43752010-05-10 09:31:11 +0000532#define br_sysfs_renameif(p) (0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533#define br_sysfs_addbr(dev) (0)
534#define br_sysfs_delbr(dev) do { } while(0)
535#endif /* CONFIG_SYSFS */
536
537#endif