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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Linux ethernet bridge | |
3 | * | |
4 | * Authors: | |
5 | * Lennert Buytenhek <buytenh@gnu.org> | |
6 | * | |
1da177e4 LT |
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. | |
11 | */ | |
12 | ||
13 | #ifndef _BR_PRIVATE_H | |
14 | #define _BR_PRIVATE_H | |
15 | ||
16 | #include <linux/netdevice.h> | |
1da177e4 | 17 | #include <linux/if_bridge.h> |
91d2c34a | 18 | #include <linux/netpoll.h> |
406818ff | 19 | #include <linux/u64_stats_sync.h> |
4adf0af6 | 20 | #include <net/route.h> |
1da177e4 LT |
21 | |
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 | ||
9cde0708 SH |
30 | #define BR_VERSION "2.3" |
31 | ||
515853cc | 32 | /* Control of forwarding link local multicast */ |
33 | #define BR_GROUPFWD_DEFAULT 0 | |
34 | /* Don't allow forwarding control protocols like STP and LLDP */ | |
35 | #define BR_GROUPFWD_RESTRICTED 0x4007u | |
36 | ||
9cde0708 SH |
37 | /* Path to usermode spanning tree program */ |
38 | #define BR_STP_PROG "/sbin/bridge-stp" | |
8cbb512e | 39 | |
1da177e4 LT |
40 | typedef struct bridge_id bridge_id; |
41 | typedef struct mac_addr mac_addr; | |
42 | typedef __u16 port_id; | |
43 | ||
44 | struct bridge_id | |
45 | { | |
46 | unsigned char prio[2]; | |
47 | unsigned char addr[6]; | |
48 | }; | |
49 | ||
50 | struct mac_addr | |
51 | { | |
52 | unsigned char addr[6]; | |
53 | }; | |
54 | ||
8ef2a9a5 YH |
55 | struct br_ip |
56 | { | |
57 | union { | |
58 | __be32 ip4; | |
dfd56b8b | 59 | #if IS_ENABLED(CONFIG_IPV6) |
08b202b6 YH |
60 | struct in6_addr ip6; |
61 | #endif | |
8ef2a9a5 YH |
62 | } u; |
63 | __be16 proto; | |
64 | }; | |
65 | ||
1da177e4 LT |
66 | struct net_bridge_fdb_entry |
67 | { | |
68 | struct hlist_node hlist; | |
69 | struct net_bridge_port *dst; | |
70 | ||
71 | struct rcu_head rcu; | |
7cd8861a | 72 | unsigned long updated; |
73 | unsigned long used; | |
1da177e4 LT |
74 | mac_addr addr; |
75 | unsigned char is_local; | |
76 | unsigned char is_static; | |
77 | }; | |
78 | ||
eb1d1641 HX |
79 | struct net_bridge_port_group { |
80 | struct net_bridge_port *port; | |
e8051688 | 81 | struct net_bridge_port_group __rcu *next; |
eb1d1641 HX |
82 | struct hlist_node mglist; |
83 | struct rcu_head rcu; | |
84 | struct timer_list timer; | |
8ef2a9a5 | 85 | struct br_ip addr; |
eb1d1641 HX |
86 | }; |
87 | ||
88 | struct net_bridge_mdb_entry | |
89 | { | |
90 | struct hlist_node hlist[2]; | |
eb1d1641 | 91 | struct net_bridge *br; |
e8051688 | 92 | struct net_bridge_port_group __rcu *ports; |
eb1d1641 HX |
93 | struct rcu_head rcu; |
94 | struct timer_list timer; | |
8ef2a9a5 | 95 | struct br_ip addr; |
8a870178 | 96 | bool mglist; |
eb1d1641 HX |
97 | }; |
98 | ||
99 | struct net_bridge_mdb_htable | |
100 | { | |
101 | struct hlist_head *mhash; | |
102 | struct rcu_head rcu; | |
103 | struct net_bridge_mdb_htable *old; | |
104 | u32 size; | |
105 | u32 max; | |
106 | u32 secret; | |
107 | u32 ver; | |
108 | }; | |
109 | ||
1da177e4 LT |
110 | struct net_bridge_port |
111 | { | |
112 | struct net_bridge *br; | |
113 | struct net_device *dev; | |
114 | struct list_head list; | |
115 | ||
116 | /* STP */ | |
117 | u8 priority; | |
118 | u8 state; | |
119 | u16 port_no; | |
120 | unsigned char topology_change_ack; | |
121 | unsigned char config_pending; | |
122 | port_id port_id; | |
123 | port_id designated_port; | |
124 | bridge_id designated_root; | |
125 | bridge_id designated_bridge; | |
126 | u32 path_cost; | |
127 | u32 designated_cost; | |
0c03150e | 128 | unsigned long designated_age; |
1da177e4 LT |
129 | |
130 | struct timer_list forward_delay_timer; | |
131 | struct timer_list hold_timer; | |
132 | struct timer_list message_age_timer; | |
133 | struct kobject kobj; | |
134 | struct rcu_head rcu; | |
3982d3d2 FA |
135 | |
136 | unsigned long flags; | |
137 | #define BR_HAIRPIN_MODE 0x00000001 | |
eb1d1641 HX |
138 | |
139 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING | |
140 | u32 multicast_startup_queries_sent; | |
141 | unsigned char multicast_router; | |
142 | struct timer_list multicast_router_timer; | |
143 | struct timer_list multicast_query_timer; | |
144 | struct hlist_head mglist; | |
145 | struct hlist_node rlist; | |
146 | #endif | |
e0f43752 SA |
147 | |
148 | #ifdef CONFIG_SYSFS | |
149 | char sysfs_name[IFNAMSIZ]; | |
150 | #endif | |
91d2c34a HX |
151 | |
152 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
153 | struct netpoll *np; | |
154 | #endif | |
1da177e4 LT |
155 | }; |
156 | ||
f350a0a8 JP |
157 | #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) |
158 | ||
b5ed54e9 | 159 | static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) |
160 | { | |
2469ffd7 JF |
161 | struct net_bridge_port *port = |
162 | rcu_dereference_rtnl(dev->rx_handler_data); | |
163 | ||
b5ed54e9 | 164 | return br_port_exists(dev) ? port : NULL; |
165 | } | |
166 | ||
ec1e5610 | 167 | static inline struct net_bridge_port *br_port_get_rtnl(struct net_device *dev) |
b5ed54e9 | 168 | { |
ec1e5610 ED |
169 | return br_port_exists(dev) ? |
170 | rtnl_dereference(dev->rx_handler_data) : NULL; | |
b5ed54e9 | 171 | } |
172 | ||
0eae88f3 | 173 | struct br_cpu_netstats { |
406818ff ED |
174 | u64 rx_packets; |
175 | u64 rx_bytes; | |
176 | u64 tx_packets; | |
177 | u64 tx_bytes; | |
178 | struct u64_stats_sync syncp; | |
0eae88f3 ED |
179 | }; |
180 | ||
1da177e4 LT |
181 | struct net_bridge |
182 | { | |
183 | spinlock_t lock; | |
184 | struct list_head port_list; | |
185 | struct net_device *dev; | |
14bb4789 | 186 | |
0eae88f3 | 187 | struct br_cpu_netstats __percpu *stats; |
1da177e4 LT |
188 | spinlock_t hash_lock; |
189 | struct hlist_head hash[BR_HASH_SIZE]; | |
4adf0af6 SW |
190 | #ifdef CONFIG_BRIDGE_NETFILTER |
191 | struct rtable fake_rtable; | |
4df53d8b PM |
192 | bool nf_call_iptables; |
193 | bool nf_call_ip6tables; | |
194 | bool nf_call_arptables; | |
4adf0af6 | 195 | #endif |
92c0574f SH |
196 | unsigned long flags; |
197 | #define BR_SET_MAC_ADDR 0x00000001 | |
1da177e4 | 198 | |
515853cc | 199 | u16 group_fwd_mask; |
200 | ||
1da177e4 LT |
201 | /* STP */ |
202 | bridge_id designated_root; | |
203 | bridge_id bridge_id; | |
204 | u32 root_path_cost; | |
205 | unsigned long max_age; | |
206 | unsigned long hello_time; | |
207 | unsigned long forward_delay; | |
208 | unsigned long bridge_max_age; | |
209 | unsigned long ageing_time; | |
210 | unsigned long bridge_hello_time; | |
211 | unsigned long bridge_forward_delay; | |
212 | ||
fda93d92 | 213 | u8 group_addr[ETH_ALEN]; |
1da177e4 | 214 | u16 root_port; |
9cde0708 SH |
215 | |
216 | enum { | |
217 | BR_NO_STP, /* no spanning tree */ | |
218 | BR_KERNEL_STP, /* old STP in kernel */ | |
219 | BR_USER_STP, /* new RSTP in userspace */ | |
220 | } stp_enabled; | |
221 | ||
1da177e4 LT |
222 | unsigned char topology_change; |
223 | unsigned char topology_change_detected; | |
224 | ||
eb1d1641 HX |
225 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
226 | unsigned char multicast_router; | |
227 | ||
228 | u8 multicast_disabled:1; | |
c5c23260 | 229 | u8 multicast_querier:1; |
eb1d1641 HX |
230 | |
231 | u32 hash_elasticity; | |
232 | u32 hash_max; | |
233 | ||
234 | u32 multicast_last_member_count; | |
235 | u32 multicast_startup_queries_sent; | |
236 | u32 multicast_startup_query_count; | |
237 | ||
238 | unsigned long multicast_last_member_interval; | |
239 | unsigned long multicast_membership_interval; | |
240 | unsigned long multicast_querier_interval; | |
241 | unsigned long multicast_query_interval; | |
242 | unsigned long multicast_query_response_interval; | |
243 | unsigned long multicast_startup_query_interval; | |
244 | ||
245 | spinlock_t multicast_lock; | |
e8051688 | 246 | struct net_bridge_mdb_htable __rcu *mdb; |
eb1d1641 | 247 | struct hlist_head router_list; |
eb1d1641 HX |
248 | |
249 | struct timer_list multicast_router_timer; | |
250 | struct timer_list multicast_querier_timer; | |
251 | struct timer_list multicast_query_timer; | |
252 | #endif | |
253 | ||
1da177e4 LT |
254 | struct timer_list hello_timer; |
255 | struct timer_list tcn_timer; | |
256 | struct timer_list topology_change_timer; | |
257 | struct timer_list gc_timer; | |
43b98c4a | 258 | struct kobject *ifobj; |
1da177e4 LT |
259 | }; |
260 | ||
68b7c895 HX |
261 | struct br_input_skb_cb { |
262 | struct net_device *brdev; | |
32dec5dd | 263 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
eb1d1641 HX |
264 | int igmp; |
265 | int mrouters_only; | |
32dec5dd | 266 | #endif |
68b7c895 HX |
267 | }; |
268 | ||
269 | #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) | |
270 | ||
32dec5dd YH |
271 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
272 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) | |
273 | #else | |
274 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) | |
275 | #endif | |
276 | ||
28a16c97 | 277 | #define br_printk(level, br, format, args...) \ |
278 | printk(level "%s: " format, (br)->dev->name, ##args) | |
279 | ||
280 | #define br_err(__br, format, args...) \ | |
281 | br_printk(KERN_ERR, __br, format, ##args) | |
282 | #define br_warn(__br, format, args...) \ | |
283 | br_printk(KERN_WARNING, __br, format, ##args) | |
284 | #define br_notice(__br, format, args...) \ | |
285 | br_printk(KERN_NOTICE, __br, format, ##args) | |
286 | #define br_info(__br, format, args...) \ | |
287 | br_printk(KERN_INFO, __br, format, ##args) | |
288 | ||
289 | #define br_debug(br, format, args...) \ | |
290 | pr_debug("%s: " format, (br)->dev->name, ##args) | |
291 | ||
1da177e4 | 292 | extern struct notifier_block br_device_notifier; |
1da177e4 LT |
293 | |
294 | /* called under bridge lock */ | |
295 | static inline int br_is_root_bridge(const struct net_bridge *br) | |
296 | { | |
297 | return !memcmp(&br->bridge_id, &br->designated_root, 8); | |
298 | } | |
299 | ||
1da177e4 LT |
300 | /* br_device.c */ |
301 | extern void br_dev_setup(struct net_device *dev); | |
1ce5cce8 | 302 | extern void br_dev_delete(struct net_device *dev, struct list_head *list); |
6fef4c0c SH |
303 | extern netdev_tx_t br_dev_xmit(struct sk_buff *skb, |
304 | struct net_device *dev); | |
cfb478da | 305 | #ifdef CONFIG_NET_POLL_CONTROLLER |
91d2c34a HX |
306 | static inline struct netpoll_info *br_netpoll_info(struct net_bridge *br) |
307 | { | |
308 | return br->dev->npinfo; | |
309 | } | |
310 | ||
311 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, | |
312 | struct sk_buff *skb) | |
313 | { | |
314 | struct netpoll *np = p->np; | |
315 | ||
316 | if (np) | |
317 | netpoll_send_skb(np, skb); | |
318 | } | |
319 | ||
47be03a2 | 320 | extern int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp); |
91d2c34a | 321 | extern void br_netpoll_disable(struct net_bridge_port *p); |
cfb478da | 322 | #else |
91d2c34a HX |
323 | static inline struct netpoll_info *br_netpoll_info(struct net_bridge *br) |
324 | { | |
325 | return NULL; | |
326 | } | |
327 | ||
9f70b0fc | 328 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
91d2c34a HX |
329 | struct sk_buff *skb) |
330 | { | |
331 | } | |
cfb478da | 332 | |
47be03a2 | 333 | static inline int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp) |
91d2c34a HX |
334 | { |
335 | return 0; | |
336 | } | |
337 | ||
338 | static inline void br_netpoll_disable(struct net_bridge_port *p) | |
339 | { | |
340 | } | |
cfb478da | 341 | #endif |
1da177e4 LT |
342 | |
343 | /* br_fdb.c */ | |
87a596e0 | 344 | extern int br_fdb_init(void); |
1da177e4 | 345 | extern void br_fdb_fini(void); |
9cf63747 | 346 | extern void br_fdb_flush(struct net_bridge *br); |
1da177e4 LT |
347 | extern void br_fdb_changeaddr(struct net_bridge_port *p, |
348 | const unsigned char *newaddr); | |
43598813 | 349 | extern void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); |
1da177e4 LT |
350 | extern void br_fdb_cleanup(unsigned long arg); |
351 | extern void br_fdb_delete_by_port(struct net_bridge *br, | |
1a620698 | 352 | const struct net_bridge_port *p, int do_all); |
1da177e4 LT |
353 | extern struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, |
354 | const unsigned char *addr); | |
da678292 | 355 | extern int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); |
9d6f229f | 356 | extern int br_fdb_fillbuf(struct net_bridge *br, void *buf, |
1da177e4 LT |
357 | unsigned long count, unsigned long off); |
358 | extern int br_fdb_insert(struct net_bridge *br, | |
359 | struct net_bridge_port *source, | |
360 | const unsigned char *addr); | |
361 | extern void br_fdb_update(struct net_bridge *br, | |
362 | struct net_bridge_port *source, | |
363 | const unsigned char *addr); | |
77162022 JF |
364 | |
365 | extern int br_fdb_delete(struct ndmsg *ndm, | |
366 | struct net_device *dev, | |
6b6e2725 | 367 | const unsigned char *addr); |
edc7d573 | 368 | extern int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], |
77162022 | 369 | struct net_device *dev, |
6b6e2725 | 370 | const unsigned char *addr, |
77162022 JF |
371 | u16 nlh_flags); |
372 | extern int br_fdb_dump(struct sk_buff *skb, | |
373 | struct netlink_callback *cb, | |
374 | struct net_device *dev, | |
375 | int idx); | |
1da177e4 LT |
376 | |
377 | /* br_forward.c */ | |
378 | extern void br_deliver(const struct net_bridge_port *to, | |
379 | struct sk_buff *skb); | |
380 | extern int br_dev_queue_push_xmit(struct sk_buff *skb); | |
381 | extern void br_forward(const struct net_bridge_port *to, | |
7f7708f0 | 382 | struct sk_buff *skb, struct sk_buff *skb0); |
1da177e4 | 383 | extern int br_forward_finish(struct sk_buff *skb); |
e081e1e3 | 384 | extern void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb); |
b33084be HX |
385 | extern void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, |
386 | struct sk_buff *skb2); | |
1da177e4 LT |
387 | |
388 | /* br_if.c */ | |
269def7c | 389 | extern void br_port_carrier_check(struct net_bridge_port *p); |
4aa678ba AD |
390 | extern int br_add_bridge(struct net *net, const char *name); |
391 | extern int br_del_bridge(struct net *net, const char *name); | |
712d6954 | 392 | extern void br_net_exit(struct net *net); |
1da177e4 LT |
393 | extern int br_add_if(struct net_bridge *br, |
394 | struct net_device *dev); | |
395 | extern int br_del_if(struct net_bridge *br, | |
396 | struct net_device *dev); | |
397 | extern int br_min_mtu(const struct net_bridge *br); | |
c8f44aff MM |
398 | extern netdev_features_t br_features_recompute(struct net_bridge *br, |
399 | netdev_features_t features); | |
1da177e4 LT |
400 | |
401 | /* br_input.c */ | |
402 | extern int br_handle_frame_finish(struct sk_buff *skb); | |
8a4eb573 | 403 | extern rx_handler_result_t br_handle_frame(struct sk_buff **pskb); |
1da177e4 LT |
404 | |
405 | /* br_ioctl.c */ | |
406 | extern int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); | |
881d966b | 407 | extern int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __user *arg); |
1da177e4 | 408 | |
eb1d1641 HX |
409 | /* br_multicast.c */ |
410 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING | |
411 | extern int br_multicast_rcv(struct net_bridge *br, | |
412 | struct net_bridge_port *port, | |
413 | struct sk_buff *skb); | |
414 | extern struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, | |
415 | struct sk_buff *skb); | |
416 | extern void br_multicast_add_port(struct net_bridge_port *port); | |
417 | extern void br_multicast_del_port(struct net_bridge_port *port); | |
418 | extern void br_multicast_enable_port(struct net_bridge_port *port); | |
419 | extern void br_multicast_disable_port(struct net_bridge_port *port); | |
420 | extern void br_multicast_init(struct net_bridge *br); | |
421 | extern void br_multicast_open(struct net_bridge *br); | |
422 | extern void br_multicast_stop(struct net_bridge *br); | |
5cb5e947 HX |
423 | extern void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, |
424 | struct sk_buff *skb); | |
425 | extern void br_multicast_forward(struct net_bridge_mdb_entry *mdst, | |
426 | struct sk_buff *skb, struct sk_buff *skb2); | |
0909e117 HX |
427 | extern int br_multicast_set_router(struct net_bridge *br, unsigned long val); |
428 | extern int br_multicast_set_port_router(struct net_bridge_port *p, | |
429 | unsigned long val); | |
561f1103 | 430 | extern int br_multicast_toggle(struct net_bridge *br, unsigned long val); |
c5c23260 | 431 | extern int br_multicast_set_querier(struct net_bridge *br, unsigned long val); |
b195167f | 432 | extern int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); |
85b35269 SS |
433 | |
434 | static inline bool br_multicast_is_router(struct net_bridge *br) | |
435 | { | |
436 | return br->multicast_router == 2 || | |
437 | (br->multicast_router == 1 && | |
438 | timer_pending(&br->multicast_router_timer)); | |
439 | } | |
eb1d1641 HX |
440 | #else |
441 | static inline int br_multicast_rcv(struct net_bridge *br, | |
442 | struct net_bridge_port *port, | |
443 | struct sk_buff *skb) | |
444 | { | |
445 | return 0; | |
446 | } | |
447 | ||
448 | static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, | |
449 | struct sk_buff *skb) | |
450 | { | |
451 | return NULL; | |
452 | } | |
453 | ||
454 | static inline void br_multicast_add_port(struct net_bridge_port *port) | |
455 | { | |
456 | } | |
457 | ||
458 | static inline void br_multicast_del_port(struct net_bridge_port *port) | |
459 | { | |
460 | } | |
461 | ||
462 | static inline void br_multicast_enable_port(struct net_bridge_port *port) | |
463 | { | |
464 | } | |
465 | ||
466 | static inline void br_multicast_disable_port(struct net_bridge_port *port) | |
467 | { | |
468 | } | |
469 | ||
470 | static inline void br_multicast_init(struct net_bridge *br) | |
471 | { | |
472 | } | |
473 | ||
474 | static inline void br_multicast_open(struct net_bridge *br) | |
475 | { | |
476 | } | |
477 | ||
478 | static inline void br_multicast_stop(struct net_bridge *br) | |
479 | { | |
480 | } | |
5cb5e947 HX |
481 | |
482 | static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, | |
483 | struct sk_buff *skb) | |
484 | { | |
485 | } | |
486 | ||
487 | static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, | |
488 | struct sk_buff *skb, | |
489 | struct sk_buff *skb2) | |
490 | { | |
491 | } | |
eb1d1641 HX |
492 | static inline bool br_multicast_is_router(struct net_bridge *br) |
493 | { | |
85b35269 | 494 | return 0; |
eb1d1641 | 495 | } |
85b35269 | 496 | #endif |
eb1d1641 | 497 | |
1da177e4 | 498 | /* br_netfilter.c */ |
c0909713 | 499 | #ifdef CONFIG_BRIDGE_NETFILTER |
1da177e4 LT |
500 | extern int br_netfilter_init(void); |
501 | extern void br_netfilter_fini(void); | |
4adf0af6 | 502 | extern void br_netfilter_rtable_init(struct net_bridge *); |
c0909713 SH |
503 | #else |
504 | #define br_netfilter_init() (0) | |
505 | #define br_netfilter_fini() do { } while(0) | |
4adf0af6 | 506 | #define br_netfilter_rtable_init(x) |
c0909713 | 507 | #endif |
1da177e4 LT |
508 | |
509 | /* br_stp.c */ | |
510 | extern void br_log_state(const struct net_bridge_port *p); | |
511 | extern struct net_bridge_port *br_get_port(struct net_bridge *br, | |
9d6f229f | 512 | u16 port_no); |
1da177e4 LT |
513 | extern void br_init_port(struct net_bridge_port *p); |
514 | extern void br_become_designated_port(struct net_bridge_port *p); | |
515 | ||
14f98f25 | 516 | extern int br_set_forward_delay(struct net_bridge *br, unsigned long x); |
517 | extern int br_set_hello_time(struct net_bridge *br, unsigned long x); | |
518 | extern int br_set_max_age(struct net_bridge *br, unsigned long x); | |
519 | ||
520 | ||
1da177e4 LT |
521 | /* br_stp_if.c */ |
522 | extern void br_stp_enable_bridge(struct net_bridge *br); | |
523 | extern void br_stp_disable_bridge(struct net_bridge *br); | |
9cde0708 | 524 | extern void br_stp_set_enabled(struct net_bridge *br, unsigned long val); |
1da177e4 LT |
525 | extern void br_stp_enable_port(struct net_bridge_port *p); |
526 | extern void br_stp_disable_port(struct net_bridge_port *p); | |
edf947f1 | 527 | extern bool br_stp_recalculate_bridge_id(struct net_bridge *br); |
4505a3ef | 528 | extern void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); |
1da177e4 LT |
529 | extern void br_stp_set_bridge_priority(struct net_bridge *br, |
530 | u16 newprio); | |
14f98f25 | 531 | extern int br_stp_set_port_priority(struct net_bridge_port *p, |
532 | unsigned long newprio); | |
533 | extern int br_stp_set_path_cost(struct net_bridge_port *p, | |
534 | unsigned long path_cost); | |
1da177e4 LT |
535 | extern ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); |
536 | ||
537 | /* br_stp_bpdu.c */ | |
7c85fbf0 PM |
538 | struct stp_proto; |
539 | extern void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, | |
540 | struct net_device *dev); | |
1da177e4 LT |
541 | |
542 | /* br_stp_timer.c */ | |
543 | extern void br_stp_timer_init(struct net_bridge *br); | |
544 | extern void br_stp_port_timer_init(struct net_bridge_port *p); | |
545 | extern unsigned long br_timer_value(const struct timer_list *timer); | |
546 | ||
547 | /* br.c */ | |
e6373c4c | 548 | #if IS_ENABLED(CONFIG_ATM_LANE) |
da678292 MM |
549 | extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); |
550 | #endif | |
1da177e4 | 551 | |
11dc1f36 | 552 | /* br_netlink.c */ |
149ddd83 | 553 | extern struct rtnl_link_ops br_link_ops; |
32fe21c0 | 554 | extern int br_netlink_init(void); |
11dc1f36 SH |
555 | extern void br_netlink_fini(void); |
556 | extern void br_ifinfo_notify(int event, struct net_bridge_port *port); | |
e5a55a89 JF |
557 | extern int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg); |
558 | extern int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, | |
559 | struct net_device *dev); | |
11dc1f36 | 560 | |
1da177e4 LT |
561 | #ifdef CONFIG_SYSFS |
562 | /* br_sysfs_if.c */ | |
52cf25d0 | 563 | extern const struct sysfs_ops brport_sysfs_ops; |
1da177e4 | 564 | extern int br_sysfs_addif(struct net_bridge_port *p); |
e0f43752 | 565 | extern int br_sysfs_renameif(struct net_bridge_port *p); |
1da177e4 LT |
566 | |
567 | /* br_sysfs_br.c */ | |
568 | extern int br_sysfs_addbr(struct net_device *dev); | |
569 | extern void br_sysfs_delbr(struct net_device *dev); | |
570 | ||
571 | #else | |
572 | ||
573 | #define br_sysfs_addif(p) (0) | |
e0f43752 | 574 | #define br_sysfs_renameif(p) (0) |
1da177e4 LT |
575 | #define br_sysfs_addbr(dev) (0) |
576 | #define br_sysfs_delbr(dev) do { } while(0) | |
577 | #endif /* CONFIG_SYSFS */ | |
578 | ||
579 | #endif |