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> |
efb6de9b | 21 | #include <net/ip6_fib.h> |
243a2e63 | 22 | #include <linux/if_vlan.h> |
2594e906 | 23 | #include <linux/rhashtable.h> |
1da177e4 LT |
24 | |
25 | #define BR_HASH_BITS 8 | |
26 | #define BR_HASH_SIZE (1 << BR_HASH_BITS) | |
27 | ||
28 | #define BR_HOLD_TIME (1*HZ) | |
29 | ||
30 | #define BR_PORT_BITS 10 | |
31 | #define BR_MAX_PORTS (1<<BR_PORT_BITS) | |
32 | ||
9cde0708 SH |
33 | #define BR_VERSION "2.3" |
34 | ||
515853cc | 35 | /* Control of forwarding link local multicast */ |
36 | #define BR_GROUPFWD_DEFAULT 0 | |
784b58a3 BT |
37 | /* Don't allow forwarding of control protocols like STP, MAC PAUSE and LACP */ |
38 | #define BR_GROUPFWD_RESTRICTED 0x0007u | |
f2808d22 TM |
39 | /* The Nearest Customer Bridge Group Address, 01-80-C2-00-00-[00,0B,0C,0D,0F] */ |
40 | #define BR_GROUPFWD_8021AD 0xB801u | |
515853cc | 41 | |
9cde0708 SH |
42 | /* Path to usermode spanning tree program */ |
43 | #define BR_STP_PROG "/sbin/bridge-stp" | |
8cbb512e | 44 | |
1da177e4 LT |
45 | typedef struct bridge_id bridge_id; |
46 | typedef struct mac_addr mac_addr; | |
47 | typedef __u16 port_id; | |
48 | ||
49 | struct bridge_id | |
50 | { | |
51 | unsigned char prio[2]; | |
e5a727f6 | 52 | unsigned char addr[ETH_ALEN]; |
1da177e4 LT |
53 | }; |
54 | ||
55 | struct mac_addr | |
56 | { | |
e5a727f6 | 57 | unsigned char addr[ETH_ALEN]; |
1da177e4 LT |
58 | }; |
59 | ||
cc0fdd80 LL |
60 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
61 | /* our own querier */ | |
90010b36 | 62 | struct bridge_mcast_own_query { |
cc0fdd80 LL |
63 | struct timer_list timer; |
64 | u32 startup_sent; | |
65 | }; | |
66 | ||
67 | /* other querier */ | |
90010b36 | 68 | struct bridge_mcast_other_query { |
cc0fdd80 LL |
69 | struct timer_list timer; |
70 | unsigned long delay_time; | |
71 | }; | |
dc4eb53a LL |
72 | |
73 | /* selected querier */ | |
74 | struct bridge_mcast_querier { | |
75 | struct br_ip addr; | |
2cd41431 | 76 | struct net_bridge_port __rcu *port; |
dc4eb53a | 77 | }; |
cc0fdd80 LL |
78 | #endif |
79 | ||
2594e906 NA |
80 | /** |
81 | * struct net_bridge_vlan - per-vlan entry | |
82 | * | |
83 | * @vnode: rhashtable member | |
84 | * @vid: VLAN id | |
85 | * @flags: bridge vlan flags | |
86 | * @br: if MASTER flag set, this points to a bridge struct | |
87 | * @port: if MASTER flag unset, this points to a port struct | |
88 | * @refcnt: if MASTER flag set, this is bumped for each port referencing it | |
89 | * @brvlan: if MASTER flag unset, this points to the global per-VLAN context | |
90 | * for this VLAN entry | |
91 | * @vlist: sorted list of VLAN entries | |
92 | * @rcu: used for entry destruction | |
93 | * | |
94 | * This structure is shared between the global per-VLAN entries contained in | |
95 | * the bridge rhashtable and the local per-port per-VLAN entries contained in | |
96 | * the port's rhashtable. The union entries should be interpreted depending on | |
97 | * the entry flags that are set. | |
98 | */ | |
99 | struct net_bridge_vlan { | |
100 | struct rhash_head vnode; | |
101 | u16 vid; | |
102 | u16 flags; | |
243a2e63 | 103 | union { |
2594e906 NA |
104 | struct net_bridge *br; |
105 | struct net_bridge_port *port; | |
106 | }; | |
107 | union { | |
108 | atomic_t refcnt; | |
109 | struct net_bridge_vlan *brvlan; | |
110 | }; | |
111 | struct list_head vlist; | |
112 | ||
243a2e63 | 113 | struct rcu_head rcu; |
2594e906 NA |
114 | }; |
115 | ||
116 | /** | |
117 | * struct net_bridge_vlan_group | |
118 | * | |
119 | * @vlan_hash: VLAN entry rhashtable | |
120 | * @vlan_list: sorted VLAN entry list | |
121 | * @num_vlans: number of total VLAN entries | |
77751ee8 | 122 | * @pvid: PVID VLAN id |
2594e906 NA |
123 | * |
124 | * IMPORTANT: Be careful when checking if there're VLAN entries using list | |
125 | * primitives because the bridge can have entries in its list which | |
126 | * are just for global context but not for filtering, i.e. they have | |
127 | * the master flag set but not the brentry flag. If you have to check | |
128 | * if there're "real" entries in the bridge please test @num_vlans | |
129 | */ | |
130 | struct net_bridge_vlan_group { | |
131 | struct rhashtable vlan_hash; | |
132 | struct list_head vlan_list; | |
6cbdceeb | 133 | u16 num_vlans; |
77751ee8 | 134 | u16 pvid; |
243a2e63 VY |
135 | }; |
136 | ||
1da177e4 LT |
137 | struct net_bridge_fdb_entry |
138 | { | |
139 | struct hlist_node hlist; | |
140 | struct net_bridge_port *dst; | |
141 | ||
7cd8861a | 142 | unsigned long updated; |
143 | unsigned long used; | |
1da177e4 | 144 | mac_addr addr; |
b22fbf22 | 145 | __u16 vlan_id; |
93859b13 JP |
146 | unsigned char is_local:1, |
147 | is_static:1, | |
cf6b8e1e SF |
148 | added_by_user:1, |
149 | added_by_external_learn:1; | |
b22fbf22 | 150 | struct rcu_head rcu; |
1da177e4 LT |
151 | }; |
152 | ||
9d06b6d8 ER |
153 | #define MDB_PG_FLAGS_PERMANENT BIT(0) |
154 | #define MDB_PG_FLAGS_OFFLOAD BIT(1) | |
155 | ||
eb1d1641 HX |
156 | struct net_bridge_port_group { |
157 | struct net_bridge_port *port; | |
e8051688 | 158 | struct net_bridge_port_group __rcu *next; |
eb1d1641 HX |
159 | struct hlist_node mglist; |
160 | struct rcu_head rcu; | |
161 | struct timer_list timer; | |
8ef2a9a5 | 162 | struct br_ip addr; |
9d06b6d8 | 163 | unsigned char flags; |
eb1d1641 HX |
164 | }; |
165 | ||
166 | struct net_bridge_mdb_entry | |
167 | { | |
168 | struct hlist_node hlist[2]; | |
eb1d1641 | 169 | struct net_bridge *br; |
e8051688 | 170 | struct net_bridge_port_group __rcu *ports; |
eb1d1641 HX |
171 | struct rcu_head rcu; |
172 | struct timer_list timer; | |
8ef2a9a5 | 173 | struct br_ip addr; |
8a870178 | 174 | bool mglist; |
eb1d1641 HX |
175 | }; |
176 | ||
177 | struct net_bridge_mdb_htable | |
178 | { | |
179 | struct hlist_head *mhash; | |
180 | struct rcu_head rcu; | |
181 | struct net_bridge_mdb_htable *old; | |
182 | u32 size; | |
183 | u32 max; | |
184 | u32 secret; | |
185 | u32 ver; | |
186 | }; | |
187 | ||
1da177e4 LT |
188 | struct net_bridge_port |
189 | { | |
190 | struct net_bridge *br; | |
191 | struct net_device *dev; | |
192 | struct list_head list; | |
193 | ||
194 | /* STP */ | |
195 | u8 priority; | |
196 | u8 state; | |
197 | u16 port_no; | |
198 | unsigned char topology_change_ack; | |
199 | unsigned char config_pending; | |
200 | port_id port_id; | |
201 | port_id designated_port; | |
202 | bridge_id designated_root; | |
203 | bridge_id designated_bridge; | |
204 | u32 path_cost; | |
205 | u32 designated_cost; | |
0c03150e | 206 | unsigned long designated_age; |
1da177e4 LT |
207 | |
208 | struct timer_list forward_delay_timer; | |
209 | struct timer_list hold_timer; | |
210 | struct timer_list message_age_timer; | |
211 | struct kobject kobj; | |
212 | struct rcu_head rcu; | |
3982d3d2 FA |
213 | |
214 | unsigned long flags; | |
eb1d1641 HX |
215 | |
216 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING | |
90010b36 | 217 | struct bridge_mcast_own_query ip4_own_query; |
cc0fdd80 | 218 | #if IS_ENABLED(CONFIG_IPV6) |
90010b36 | 219 | struct bridge_mcast_own_query ip6_own_query; |
cc0fdd80 | 220 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
eb1d1641 HX |
221 | unsigned char multicast_router; |
222 | struct timer_list multicast_router_timer; | |
eb1d1641 HX |
223 | struct hlist_head mglist; |
224 | struct hlist_node rlist; | |
225 | #endif | |
e0f43752 SA |
226 | |
227 | #ifdef CONFIG_SYSFS | |
228 | char sysfs_name[IFNAMSIZ]; | |
229 | #endif | |
91d2c34a HX |
230 | |
231 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
232 | struct netpoll *np; | |
233 | #endif | |
243a2e63 | 234 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
907b1e6e | 235 | struct net_bridge_vlan_group __rcu *vlgrp; |
243a2e63 | 236 | #endif |
1da177e4 LT |
237 | }; |
238 | ||
e028e4b8 | 239 | #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) |
f3a6ddf1 | 240 | #define br_promisc_port(p) ((p)->flags & BR_PROMISC) |
e028e4b8 | 241 | |
f350a0a8 JP |
242 | #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) |
243 | ||
b5ed54e9 | 244 | static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) |
245 | { | |
716ec052 | 246 | return rcu_dereference(dev->rx_handler_data); |
b5ed54e9 | 247 | } |
248 | ||
1fb1754a | 249 | static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) |
b5ed54e9 | 250 | { |
ec1e5610 ED |
251 | return br_port_exists(dev) ? |
252 | rtnl_dereference(dev->rx_handler_data) : NULL; | |
b5ed54e9 | 253 | } |
254 | ||
1da177e4 LT |
255 | struct net_bridge |
256 | { | |
257 | spinlock_t lock; | |
258 | struct list_head port_list; | |
259 | struct net_device *dev; | |
14bb4789 | 260 | |
8f84985f | 261 | struct pcpu_sw_netstats __percpu *stats; |
1da177e4 LT |
262 | spinlock_t hash_lock; |
263 | struct hlist_head hash[BR_HASH_SIZE]; | |
34666d46 | 264 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
efb6de9b BT |
265 | union { |
266 | struct rtable fake_rtable; | |
267 | struct rt6_info fake_rt6_info; | |
268 | }; | |
4df53d8b PM |
269 | bool nf_call_iptables; |
270 | bool nf_call_ip6tables; | |
271 | bool nf_call_arptables; | |
4adf0af6 | 272 | #endif |
515853cc | 273 | u16 group_fwd_mask; |
f2808d22 | 274 | u16 group_fwd_mask_required; |
515853cc | 275 | |
1da177e4 LT |
276 | /* STP */ |
277 | bridge_id designated_root; | |
278 | bridge_id bridge_id; | |
279 | u32 root_path_cost; | |
280 | unsigned long max_age; | |
281 | unsigned long hello_time; | |
282 | unsigned long forward_delay; | |
283 | unsigned long bridge_max_age; | |
284 | unsigned long ageing_time; | |
285 | unsigned long bridge_hello_time; | |
286 | unsigned long bridge_forward_delay; | |
287 | ||
fda93d92 | 288 | u8 group_addr[ETH_ALEN]; |
204177f3 | 289 | bool group_addr_set; |
1da177e4 | 290 | u16 root_port; |
9cde0708 SH |
291 | |
292 | enum { | |
293 | BR_NO_STP, /* no spanning tree */ | |
294 | BR_KERNEL_STP, /* old STP in kernel */ | |
295 | BR_USER_STP, /* new RSTP in userspace */ | |
296 | } stp_enabled; | |
297 | ||
1da177e4 LT |
298 | unsigned char topology_change; |
299 | unsigned char topology_change_detected; | |
300 | ||
eb1d1641 HX |
301 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
302 | unsigned char multicast_router; | |
303 | ||
304 | u8 multicast_disabled:1; | |
c5c23260 | 305 | u8 multicast_querier:1; |
1c8ad5bf | 306 | u8 multicast_query_use_ifaddr:1; |
eb1d1641 HX |
307 | |
308 | u32 hash_elasticity; | |
309 | u32 hash_max; | |
310 | ||
311 | u32 multicast_last_member_count; | |
eb1d1641 HX |
312 | u32 multicast_startup_query_count; |
313 | ||
314 | unsigned long multicast_last_member_interval; | |
315 | unsigned long multicast_membership_interval; | |
316 | unsigned long multicast_querier_interval; | |
317 | unsigned long multicast_query_interval; | |
318 | unsigned long multicast_query_response_interval; | |
319 | unsigned long multicast_startup_query_interval; | |
320 | ||
321 | spinlock_t multicast_lock; | |
e8051688 | 322 | struct net_bridge_mdb_htable __rcu *mdb; |
eb1d1641 | 323 | struct hlist_head router_list; |
eb1d1641 HX |
324 | |
325 | struct timer_list multicast_router_timer; | |
90010b36 LL |
326 | struct bridge_mcast_other_query ip4_other_query; |
327 | struct bridge_mcast_own_query ip4_own_query; | |
dc4eb53a | 328 | struct bridge_mcast_querier ip4_querier; |
cc0fdd80 | 329 | #if IS_ENABLED(CONFIG_IPV6) |
90010b36 LL |
330 | struct bridge_mcast_other_query ip6_other_query; |
331 | struct bridge_mcast_own_query ip6_own_query; | |
dc4eb53a | 332 | struct bridge_mcast_querier ip6_querier; |
cc0fdd80 | 333 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
eb1d1641 HX |
334 | #endif |
335 | ||
1da177e4 LT |
336 | struct timer_list hello_timer; |
337 | struct timer_list tcn_timer; | |
338 | struct timer_list topology_change_timer; | |
339 | struct timer_list gc_timer; | |
43b98c4a | 340 | struct kobject *ifobj; |
e028e4b8 | 341 | u32 auto_cnt; |
243a2e63 | 342 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
907b1e6e | 343 | struct net_bridge_vlan_group __rcu *vlgrp; |
243a2e63 | 344 | u8 vlan_enabled; |
8580e211 | 345 | __be16 vlan_proto; |
96a20d9d | 346 | u16 default_pvid; |
243a2e63 | 347 | #endif |
1da177e4 LT |
348 | }; |
349 | ||
68b7c895 HX |
350 | struct br_input_skb_cb { |
351 | struct net_device *brdev; | |
93fdd47e | 352 | |
32dec5dd | 353 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
eb1d1641 HX |
354 | int igmp; |
355 | int mrouters_only; | |
32dec5dd | 356 | #endif |
93fdd47e | 357 | |
842a9ae0 | 358 | bool proxyarp_replied; |
93fdd47e | 359 | |
20adfa1a VY |
360 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
361 | bool vlan_filtered; | |
362 | #endif | |
68b7c895 HX |
363 | }; |
364 | ||
365 | #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) | |
366 | ||
32dec5dd YH |
367 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
368 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) | |
369 | #else | |
370 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) | |
371 | #endif | |
372 | ||
28a16c97 | 373 | #define br_printk(level, br, format, args...) \ |
374 | printk(level "%s: " format, (br)->dev->name, ##args) | |
375 | ||
376 | #define br_err(__br, format, args...) \ | |
377 | br_printk(KERN_ERR, __br, format, ##args) | |
378 | #define br_warn(__br, format, args...) \ | |
379 | br_printk(KERN_WARNING, __br, format, ##args) | |
380 | #define br_notice(__br, format, args...) \ | |
381 | br_printk(KERN_NOTICE, __br, format, ##args) | |
382 | #define br_info(__br, format, args...) \ | |
383 | br_printk(KERN_INFO, __br, format, ##args) | |
384 | ||
385 | #define br_debug(br, format, args...) \ | |
386 | pr_debug("%s: " format, (br)->dev->name, ##args) | |
387 | ||
1da177e4 LT |
388 | /* called under bridge lock */ |
389 | static inline int br_is_root_bridge(const struct net_bridge *br) | |
390 | { | |
391 | return !memcmp(&br->bridge_id, &br->designated_root, 8); | |
392 | } | |
393 | ||
2594e906 NA |
394 | /* check if a VLAN entry is global */ |
395 | static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) | |
396 | { | |
397 | return v->flags & BRIDGE_VLAN_INFO_MASTER; | |
398 | } | |
399 | ||
400 | /* check if a VLAN entry is used by the bridge */ | |
401 | static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) | |
402 | { | |
403 | return v->flags & BRIDGE_VLAN_INFO_BRENTRY; | |
404 | } | |
405 | ||
6be144f6 | 406 | /* check if we should use the vlan entry, returns false if it's only context */ |
2594e906 NA |
407 | static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) |
408 | { | |
409 | if (br_vlan_is_master(v)) { | |
410 | if (br_vlan_is_brentry(v)) | |
411 | return true; | |
412 | else | |
413 | return false; | |
414 | } | |
415 | ||
416 | return true; | |
417 | } | |
418 | ||
1da177e4 | 419 | /* br_device.c */ |
348662a1 JP |
420 | void br_dev_setup(struct net_device *dev); |
421 | void br_dev_delete(struct net_device *dev, struct list_head *list); | |
422 | netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); | |
cfb478da | 423 | #ifdef CONFIG_NET_POLL_CONTROLLER |
91d2c34a HX |
424 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
425 | struct sk_buff *skb) | |
426 | { | |
427 | struct netpoll *np = p->np; | |
428 | ||
429 | if (np) | |
430 | netpoll_send_skb(np, skb); | |
431 | } | |
432 | ||
a8779ec1 | 433 | int br_netpoll_enable(struct net_bridge_port *p); |
348662a1 | 434 | void br_netpoll_disable(struct net_bridge_port *p); |
cfb478da | 435 | #else |
9f70b0fc | 436 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
91d2c34a HX |
437 | struct sk_buff *skb) |
438 | { | |
439 | } | |
cfb478da | 440 | |
a8779ec1 | 441 | static inline int br_netpoll_enable(struct net_bridge_port *p) |
91d2c34a HX |
442 | { |
443 | return 0; | |
444 | } | |
445 | ||
446 | static inline void br_netpoll_disable(struct net_bridge_port *p) | |
447 | { | |
448 | } | |
cfb478da | 449 | #endif |
1da177e4 LT |
450 | |
451 | /* br_fdb.c */ | |
348662a1 JP |
452 | int br_fdb_init(void); |
453 | void br_fdb_fini(void); | |
454 | void br_fdb_flush(struct net_bridge *br); | |
424bb9c9 TM |
455 | void br_fdb_find_delete_local(struct net_bridge *br, |
456 | const struct net_bridge_port *p, | |
457 | const unsigned char *addr, u16 vid); | |
348662a1 JP |
458 | void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); |
459 | void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); | |
460 | void br_fdb_cleanup(unsigned long arg); | |
461 | void br_fdb_delete_by_port(struct net_bridge *br, | |
1ea2d020 | 462 | const struct net_bridge_port *p, u16 vid, int do_all); |
348662a1 JP |
463 | struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, |
464 | const unsigned char *addr, __u16 vid); | |
465 | int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); | |
466 | int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, | |
467 | unsigned long off); | |
468 | int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, | |
469 | const unsigned char *addr, u16 vid); | |
470 | void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, | |
a5642ab4 | 471 | const unsigned char *addr, u16 vid, bool added_by_user); |
348662a1 JP |
472 | |
473 | int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], | |
f6f6424b | 474 | struct net_device *dev, const unsigned char *addr, u16 vid); |
348662a1 | 475 | int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, |
f6f6424b | 476 | const unsigned char *addr, u16 vid, u16 nlh_flags); |
348662a1 | 477 | int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, |
5d5eacb3 | 478 | struct net_device *dev, struct net_device *fdev, int idx); |
8db24af7 VY |
479 | int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); |
480 | void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); | |
3aeb6617 JP |
481 | int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, |
482 | const unsigned char *addr, u16 vid); | |
483 | int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, | |
484 | const unsigned char *addr, u16 vid); | |
1da177e4 LT |
485 | |
486 | /* br_forward.c */ | |
348662a1 | 487 | void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb); |
0c4b51f0 | 488 | int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); |
348662a1 | 489 | void br_forward(const struct net_bridge_port *to, |
7f7708f0 | 490 | struct sk_buff *skb, struct sk_buff *skb0); |
0c4b51f0 | 491 | int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); |
348662a1 JP |
492 | void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast); |
493 | void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, | |
494 | struct sk_buff *skb2, bool unicast); | |
1da177e4 LT |
495 | |
496 | /* br_if.c */ | |
348662a1 JP |
497 | void br_port_carrier_check(struct net_bridge_port *p); |
498 | int br_add_bridge(struct net *net, const char *name); | |
499 | int br_del_bridge(struct net *net, const char *name); | |
348662a1 JP |
500 | int br_add_if(struct net_bridge *br, struct net_device *dev); |
501 | int br_del_if(struct net_bridge *br, struct net_device *dev); | |
502 | int br_min_mtu(const struct net_bridge *br); | |
503 | netdev_features_t br_features_recompute(struct net_bridge *br, | |
504 | netdev_features_t features); | |
e028e4b8 | 505 | void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); |
2796d0c6 | 506 | void br_manage_promisc(struct net_bridge *br); |
1da177e4 LT |
507 | |
508 | /* br_input.c */ | |
0c4b51f0 | 509 | int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); |
348662a1 | 510 | rx_handler_result_t br_handle_frame(struct sk_buff **pskb); |
1da177e4 | 511 | |
859828c0 JP |
512 | static inline bool br_rx_handler_check_rcu(const struct net_device *dev) |
513 | { | |
514 | return rcu_dereference(dev->rx_handler) == br_handle_frame; | |
515 | } | |
516 | ||
517 | static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) | |
518 | { | |
519 | return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; | |
520 | } | |
521 | ||
1da177e4 | 522 | /* br_ioctl.c */ |
348662a1 JP |
523 | int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); |
524 | int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, | |
525 | void __user *arg); | |
1da177e4 | 526 | |
eb1d1641 HX |
527 | /* br_multicast.c */ |
528 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING | |
2ce297fc | 529 | extern unsigned int br_mdb_rehash_seq; |
348662a1 | 530 | int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, |
394efd19 | 531 | struct sk_buff *skb, u16 vid); |
348662a1 JP |
532 | struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, |
533 | struct sk_buff *skb, u16 vid); | |
534 | void br_multicast_add_port(struct net_bridge_port *port); | |
535 | void br_multicast_del_port(struct net_bridge_port *port); | |
536 | void br_multicast_enable_port(struct net_bridge_port *port); | |
537 | void br_multicast_disable_port(struct net_bridge_port *port); | |
538 | void br_multicast_init(struct net_bridge *br); | |
539 | void br_multicast_open(struct net_bridge *br); | |
540 | void br_multicast_stop(struct net_bridge *br); | |
e10177ab | 541 | void br_multicast_dev_del(struct net_bridge *br); |
348662a1 JP |
542 | void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, |
543 | struct sk_buff *skb); | |
544 | void br_multicast_forward(struct net_bridge_mdb_entry *mdst, | |
545 | struct sk_buff *skb, struct sk_buff *skb2); | |
546 | int br_multicast_set_router(struct net_bridge *br, unsigned long val); | |
547 | int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); | |
548 | int br_multicast_toggle(struct net_bridge *br, unsigned long val); | |
549 | int br_multicast_set_querier(struct net_bridge *br, unsigned long val); | |
550 | int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); | |
551 | struct net_bridge_mdb_entry * | |
552 | br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); | |
553 | struct net_bridge_mdb_entry * | |
554 | br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, | |
555 | struct br_ip *group); | |
556 | void br_multicast_free_pg(struct rcu_head *head); | |
557 | struct net_bridge_port_group * | |
558 | br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, | |
559 | struct net_bridge_port_group __rcu *next, | |
9d06b6d8 | 560 | unsigned char flags); |
348662a1 JP |
561 | void br_mdb_init(void); |
562 | void br_mdb_uninit(void); | |
45ebcce5 ER |
563 | void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, |
564 | struct br_ip *group, int type, u8 flags); | |
949f1e39 SA |
565 | void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, |
566 | int type); | |
85b35269 | 567 | |
cfd56754 CW |
568 | #define mlock_dereference(X, br) \ |
569 | rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) | |
570 | ||
85b35269 SS |
571 | static inline bool br_multicast_is_router(struct net_bridge *br) |
572 | { | |
573 | return br->multicast_router == 2 || | |
574 | (br->multicast_router == 1 && | |
575 | timer_pending(&br->multicast_router_timer)); | |
576 | } | |
b00589af | 577 | |
cc0fdd80 LL |
578 | static inline bool |
579 | __br_multicast_querier_exists(struct net_bridge *br, | |
90010b36 | 580 | struct bridge_mcast_other_query *querier) |
b00589af | 581 | { |
cc0fdd80 LL |
582 | return time_is_before_jiffies(querier->delay_time) && |
583 | (br->multicast_querier || timer_pending(&querier->timer)); | |
584 | } | |
585 | ||
586 | static inline bool br_multicast_querier_exists(struct net_bridge *br, | |
587 | struct ethhdr *eth) | |
588 | { | |
589 | switch (eth->h_proto) { | |
590 | case (htons(ETH_P_IP)): | |
90010b36 | 591 | return __br_multicast_querier_exists(br, &br->ip4_other_query); |
cc0fdd80 LL |
592 | #if IS_ENABLED(CONFIG_IPV6) |
593 | case (htons(ETH_P_IPV6)): | |
90010b36 | 594 | return __br_multicast_querier_exists(br, &br->ip6_other_query); |
cc0fdd80 LL |
595 | #endif |
596 | default: | |
597 | return false; | |
598 | } | |
b00589af | 599 | } |
eb1d1641 HX |
600 | #else |
601 | static inline int br_multicast_rcv(struct net_bridge *br, | |
602 | struct net_bridge_port *port, | |
06499098 VY |
603 | struct sk_buff *skb, |
604 | u16 vid) | |
eb1d1641 HX |
605 | { |
606 | return 0; | |
607 | } | |
608 | ||
609 | static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, | |
fbca58a2 | 610 | struct sk_buff *skb, u16 vid) |
eb1d1641 HX |
611 | { |
612 | return NULL; | |
613 | } | |
614 | ||
615 | static inline void br_multicast_add_port(struct net_bridge_port *port) | |
616 | { | |
617 | } | |
618 | ||
619 | static inline void br_multicast_del_port(struct net_bridge_port *port) | |
620 | { | |
621 | } | |
622 | ||
623 | static inline void br_multicast_enable_port(struct net_bridge_port *port) | |
624 | { | |
625 | } | |
626 | ||
627 | static inline void br_multicast_disable_port(struct net_bridge_port *port) | |
628 | { | |
629 | } | |
630 | ||
631 | static inline void br_multicast_init(struct net_bridge *br) | |
632 | { | |
633 | } | |
634 | ||
635 | static inline void br_multicast_open(struct net_bridge *br) | |
636 | { | |
637 | } | |
638 | ||
639 | static inline void br_multicast_stop(struct net_bridge *br) | |
640 | { | |
641 | } | |
5cb5e947 | 642 | |
a7ce45a7 NA |
643 | static inline void br_multicast_dev_del(struct net_bridge *br) |
644 | { | |
645 | } | |
646 | ||
5cb5e947 HX |
647 | static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, |
648 | struct sk_buff *skb) | |
649 | { | |
650 | } | |
651 | ||
652 | static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, | |
653 | struct sk_buff *skb, | |
654 | struct sk_buff *skb2) | |
655 | { | |
656 | } | |
eb1d1641 HX |
657 | static inline bool br_multicast_is_router(struct net_bridge *br) |
658 | { | |
85b35269 | 659 | return 0; |
eb1d1641 | 660 | } |
cc0fdd80 LL |
661 | static inline bool br_multicast_querier_exists(struct net_bridge *br, |
662 | struct ethhdr *eth) | |
b00589af LL |
663 | { |
664 | return false; | |
665 | } | |
fdb184d1 RR |
666 | static inline void br_mdb_init(void) |
667 | { | |
668 | } | |
669 | static inline void br_mdb_uninit(void) | |
670 | { | |
671 | } | |
85b35269 | 672 | #endif |
eb1d1641 | 673 | |
243a2e63 VY |
674 | /* br_vlan.c */ |
675 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
77751ee8 NA |
676 | bool br_allowed_ingress(const struct net_bridge *br, |
677 | struct net_bridge_vlan_group *vg, struct sk_buff *skb, | |
678 | u16 *vid); | |
679 | bool br_allowed_egress(struct net_bridge_vlan_group *vg, | |
348662a1 | 680 | const struct sk_buff *skb); |
e0d7968a | 681 | bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); |
348662a1 | 682 | struct sk_buff *br_handle_vlan(struct net_bridge *br, |
2594e906 | 683 | struct net_bridge_vlan_group *vg, |
348662a1 JP |
684 | struct sk_buff *skb); |
685 | int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); | |
686 | int br_vlan_delete(struct net_bridge *br, u16 vid); | |
687 | void br_vlan_flush(struct net_bridge *br); | |
2594e906 | 688 | struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); |
204177f3 | 689 | void br_recalculate_fwd_mask(struct net_bridge *br); |
a7854037 | 690 | int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
348662a1 | 691 | int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
d2d427b3 | 692 | int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); |
204177f3 | 693 | int br_vlan_set_proto(struct net_bridge *br, unsigned long val); |
5be5a2df | 694 | int br_vlan_init(struct net_bridge *br); |
96a20d9d | 695 | int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); |
0f963b75 | 696 | int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid); |
348662a1 JP |
697 | int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); |
698 | int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); | |
699 | void nbp_vlan_flush(struct net_bridge_port *port); | |
5be5a2df | 700 | int nbp_vlan_init(struct net_bridge_port *port); |
2594e906 | 701 | int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); |
a37b85c9 | 702 | |
2594e906 NA |
703 | static inline struct net_bridge_vlan_group *br_vlan_group( |
704 | const struct net_bridge *br) | |
a37b85c9 | 705 | { |
907b1e6e | 706 | return rtnl_dereference(br->vlgrp); |
a37b85c9 VY |
707 | } |
708 | ||
2594e906 NA |
709 | static inline struct net_bridge_vlan_group *nbp_vlan_group( |
710 | const struct net_bridge_port *p) | |
a37b85c9 | 711 | { |
907b1e6e NA |
712 | return rtnl_dereference(p->vlgrp); |
713 | } | |
714 | ||
715 | static inline struct net_bridge_vlan_group *br_vlan_group_rcu( | |
716 | const struct net_bridge *br) | |
717 | { | |
718 | return rcu_dereference(br->vlgrp); | |
719 | } | |
720 | ||
721 | static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( | |
722 | const struct net_bridge_port *p) | |
723 | { | |
724 | return rcu_dereference(p->vlgrp); | |
a37b85c9 VY |
725 | } |
726 | ||
727 | /* Since bridge now depends on 8021Q module, but the time bridge sees the | |
728 | * skb, the vlan tag will always be present if the frame was tagged. | |
729 | */ | |
730 | static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) | |
731 | { | |
732 | int err = 0; | |
733 | ||
2594e906 | 734 | if (skb_vlan_tag_present(skb)) { |
df8a39de | 735 | *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; |
2594e906 | 736 | } else { |
a37b85c9 VY |
737 | *vid = 0; |
738 | err = -EINVAL; | |
739 | } | |
740 | ||
741 | return err; | |
742 | } | |
78851988 | 743 | |
77751ee8 | 744 | static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) |
2594e906 | 745 | { |
77751ee8 | 746 | if (!vg) |
2594e906 NA |
747 | return 0; |
748 | ||
749 | smp_rmb(); | |
77751ee8 | 750 | return vg->pvid; |
78851988 VY |
751 | } |
752 | ||
2796d0c6 VY |
753 | static inline int br_vlan_enabled(struct net_bridge *br) |
754 | { | |
755 | return br->vlan_enabled; | |
756 | } | |
243a2e63 | 757 | #else |
77751ee8 NA |
758 | static inline bool br_allowed_ingress(const struct net_bridge *br, |
759 | struct net_bridge_vlan_group *vg, | |
78851988 VY |
760 | struct sk_buff *skb, |
761 | u16 *vid) | |
a37b85c9 VY |
762 | { |
763 | return true; | |
764 | } | |
765 | ||
2594e906 | 766 | static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, |
85f46c6b VY |
767 | const struct sk_buff *skb) |
768 | { | |
769 | return true; | |
770 | } | |
771 | ||
e0d7968a TM |
772 | static inline bool br_should_learn(struct net_bridge_port *p, |
773 | struct sk_buff *skb, u16 *vid) | |
774 | { | |
775 | return true; | |
776 | } | |
777 | ||
78851988 | 778 | static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, |
2594e906 | 779 | struct net_bridge_vlan_group *vg, |
78851988 VY |
780 | struct sk_buff *skb) |
781 | { | |
782 | return skb; | |
783 | } | |
784 | ||
552406c4 | 785 | static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) |
243a2e63 VY |
786 | { |
787 | return -EOPNOTSUPP; | |
788 | } | |
789 | ||
790 | static inline int br_vlan_delete(struct net_bridge *br, u16 vid) | |
791 | { | |
792 | return -EOPNOTSUPP; | |
793 | } | |
794 | ||
795 | static inline void br_vlan_flush(struct net_bridge *br) | |
796 | { | |
797 | } | |
798 | ||
204177f3 TM |
799 | static inline void br_recalculate_fwd_mask(struct net_bridge *br) |
800 | { | |
801 | } | |
802 | ||
5be5a2df | 803 | static inline int br_vlan_init(struct net_bridge *br) |
8580e211 | 804 | { |
5be5a2df | 805 | return 0; |
8580e211 TM |
806 | } |
807 | ||
552406c4 | 808 | static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) |
243a2e63 VY |
809 | { |
810 | return -EOPNOTSUPP; | |
811 | } | |
812 | ||
813 | static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) | |
814 | { | |
815 | return -EOPNOTSUPP; | |
816 | } | |
817 | ||
818 | static inline void nbp_vlan_flush(struct net_bridge_port *port) | |
819 | { | |
820 | } | |
821 | ||
2594e906 NA |
822 | static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, |
823 | u16 vid) | |
a37b85c9 VY |
824 | { |
825 | return NULL; | |
826 | } | |
827 | ||
2594e906 | 828 | static inline int nbp_vlan_init(struct net_bridge_port *port) |
bc9a25d2 | 829 | { |
2594e906 | 830 | return 0; |
bc9a25d2 VY |
831 | } |
832 | ||
2594e906 | 833 | static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) |
5be5a2df VY |
834 | { |
835 | return 0; | |
836 | } | |
837 | ||
77751ee8 | 838 | static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) |
78851988 | 839 | { |
3df6bf45 | 840 | return 0; |
78851988 | 841 | } |
2796d0c6 | 842 | |
d4f0e095 | 843 | static inline int br_vlan_enabled(struct net_bridge *br) |
2796d0c6 VY |
844 | { |
845 | return 0; | |
846 | } | |
a7854037 NA |
847 | |
848 | static inline int __br_vlan_filter_toggle(struct net_bridge *br, | |
849 | unsigned long val) | |
850 | { | |
851 | return -EOPNOTSUPP; | |
852 | } | |
2594e906 NA |
853 | |
854 | static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, | |
855 | u32 filter_mask) | |
856 | { | |
857 | return 0; | |
858 | } | |
859 | ||
860 | static inline struct net_bridge_vlan_group *br_vlan_group( | |
861 | const struct net_bridge *br) | |
862 | { | |
863 | return NULL; | |
864 | } | |
865 | ||
866 | static inline struct net_bridge_vlan_group *nbp_vlan_group( | |
867 | const struct net_bridge_port *p) | |
868 | { | |
869 | return NULL; | |
870 | } | |
907b1e6e NA |
871 | |
872 | static inline struct net_bridge_vlan_group *br_vlan_group_rcu( | |
873 | const struct net_bridge *br) | |
874 | { | |
875 | return NULL; | |
876 | } | |
877 | ||
878 | static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( | |
879 | const struct net_bridge_port *p) | |
880 | { | |
881 | return NULL; | |
882 | } | |
883 | ||
243a2e63 VY |
884 | #endif |
885 | ||
1a4ba64d PNA |
886 | struct nf_br_ops { |
887 | int (*br_dev_xmit_hook)(struct sk_buff *skb); | |
888 | }; | |
889 | extern const struct nf_br_ops __rcu *nf_br_ops; | |
890 | ||
1da177e4 | 891 | /* br_netfilter.c */ |
34666d46 PNA |
892 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
893 | int br_nf_core_init(void); | |
894 | void br_nf_core_fini(void); | |
348662a1 | 895 | void br_netfilter_rtable_init(struct net_bridge *); |
c0909713 | 896 | #else |
34666d46 PNA |
897 | static inline int br_nf_core_init(void) { return 0; } |
898 | static inline void br_nf_core_fini(void) {} | |
4adf0af6 | 899 | #define br_netfilter_rtable_init(x) |
c0909713 | 900 | #endif |
1da177e4 LT |
901 | |
902 | /* br_stp.c */ | |
775dd692 | 903 | void br_set_state(struct net_bridge_port *p, unsigned int state); |
348662a1 JP |
904 | struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); |
905 | void br_init_port(struct net_bridge_port *p); | |
906 | void br_become_designated_port(struct net_bridge_port *p); | |
1da177e4 | 907 | |
348662a1 JP |
908 | void __br_set_forward_delay(struct net_bridge *br, unsigned long t); |
909 | int br_set_forward_delay(struct net_bridge *br, unsigned long x); | |
910 | int br_set_hello_time(struct net_bridge *br, unsigned long x); | |
911 | int br_set_max_age(struct net_bridge *br, unsigned long x); | |
c62987bb | 912 | int br_set_ageing_time(struct net_bridge *br, u32 ageing_time); |
14f98f25 | 913 | |
914 | ||
1da177e4 | 915 | /* br_stp_if.c */ |
348662a1 JP |
916 | void br_stp_enable_bridge(struct net_bridge *br); |
917 | void br_stp_disable_bridge(struct net_bridge *br); | |
918 | void br_stp_set_enabled(struct net_bridge *br, unsigned long val); | |
919 | void br_stp_enable_port(struct net_bridge_port *p); | |
920 | void br_stp_disable_port(struct net_bridge_port *p); | |
921 | bool br_stp_recalculate_bridge_id(struct net_bridge *br); | |
922 | void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); | |
923 | void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); | |
924 | int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); | |
925 | int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); | |
926 | ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); | |
1da177e4 LT |
927 | |
928 | /* br_stp_bpdu.c */ | |
7c85fbf0 | 929 | struct stp_proto; |
348662a1 JP |
930 | void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, |
931 | struct net_device *dev); | |
1da177e4 LT |
932 | |
933 | /* br_stp_timer.c */ | |
348662a1 JP |
934 | void br_stp_timer_init(struct net_bridge *br); |
935 | void br_stp_port_timer_init(struct net_bridge_port *p); | |
936 | unsigned long br_timer_value(const struct timer_list *timer); | |
1da177e4 LT |
937 | |
938 | /* br.c */ | |
e6373c4c | 939 | #if IS_ENABLED(CONFIG_ATM_LANE) |
da678292 MM |
940 | extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); |
941 | #endif | |
1da177e4 | 942 | |
11dc1f36 | 943 | /* br_netlink.c */ |
149ddd83 | 944 | extern struct rtnl_link_ops br_link_ops; |
348662a1 JP |
945 | int br_netlink_init(void); |
946 | void br_netlink_fini(void); | |
947 | void br_ifinfo_notify(int event, struct net_bridge_port *port); | |
add511b3 RP |
948 | int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); |
949 | int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); | |
348662a1 | 950 | int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, |
46c264da | 951 | u32 filter_mask, int nlflags); |
11dc1f36 | 952 | |
1da177e4 LT |
953 | #ifdef CONFIG_SYSFS |
954 | /* br_sysfs_if.c */ | |
52cf25d0 | 955 | extern const struct sysfs_ops brport_sysfs_ops; |
348662a1 JP |
956 | int br_sysfs_addif(struct net_bridge_port *p); |
957 | int br_sysfs_renameif(struct net_bridge_port *p); | |
1da177e4 LT |
958 | |
959 | /* br_sysfs_br.c */ | |
348662a1 JP |
960 | int br_sysfs_addbr(struct net_device *dev); |
961 | void br_sysfs_delbr(struct net_device *dev); | |
1da177e4 LT |
962 | |
963 | #else | |
964 | ||
0cb2bbbe LJ |
965 | static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } |
966 | static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } | |
967 | static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } | |
968 | static inline void br_sysfs_delbr(struct net_device *dev) { return; } | |
1da177e4 LT |
969 | #endif /* CONFIG_SYSFS */ |
970 | ||
971 | #endif |