Commit | Line | Data |
---|---|---|
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 | }; |
1080ab95 NA |
78 | |
79 | /* IGMP/MLD statistics */ | |
80 | struct bridge_mcast_stats { | |
81 | struct br_mcast_stats mstats; | |
82 | struct u64_stats_sync syncp; | |
83 | }; | |
cc0fdd80 LL |
84 | #endif |
85 | ||
6dada9b1 NA |
86 | struct br_vlan_stats { |
87 | u64 rx_bytes; | |
88 | u64 rx_packets; | |
89 | u64 tx_bytes; | |
90 | u64 tx_packets; | |
91 | struct u64_stats_sync syncp; | |
92 | }; | |
93 | ||
2594e906 NA |
94 | /** |
95 | * struct net_bridge_vlan - per-vlan entry | |
96 | * | |
97 | * @vnode: rhashtable member | |
98 | * @vid: VLAN id | |
99 | * @flags: bridge vlan flags | |
6dada9b1 | 100 | * @stats: per-cpu VLAN statistics |
2594e906 NA |
101 | * @br: if MASTER flag set, this points to a bridge struct |
102 | * @port: if MASTER flag unset, this points to a port struct | |
103 | * @refcnt: if MASTER flag set, this is bumped for each port referencing it | |
104 | * @brvlan: if MASTER flag unset, this points to the global per-VLAN context | |
105 | * for this VLAN entry | |
106 | * @vlist: sorted list of VLAN entries | |
107 | * @rcu: used for entry destruction | |
108 | * | |
109 | * This structure is shared between the global per-VLAN entries contained in | |
110 | * the bridge rhashtable and the local per-port per-VLAN entries contained in | |
111 | * the port's rhashtable. The union entries should be interpreted depending on | |
112 | * the entry flags that are set. | |
113 | */ | |
114 | struct net_bridge_vlan { | |
115 | struct rhash_head vnode; | |
116 | u16 vid; | |
117 | u16 flags; | |
6dada9b1 | 118 | struct br_vlan_stats __percpu *stats; |
243a2e63 | 119 | union { |
2594e906 NA |
120 | struct net_bridge *br; |
121 | struct net_bridge_port *port; | |
122 | }; | |
123 | union { | |
124 | atomic_t refcnt; | |
125 | struct net_bridge_vlan *brvlan; | |
126 | }; | |
127 | struct list_head vlist; | |
128 | ||
243a2e63 | 129 | struct rcu_head rcu; |
2594e906 NA |
130 | }; |
131 | ||
132 | /** | |
133 | * struct net_bridge_vlan_group | |
134 | * | |
135 | * @vlan_hash: VLAN entry rhashtable | |
136 | * @vlan_list: sorted VLAN entry list | |
137 | * @num_vlans: number of total VLAN entries | |
77751ee8 | 138 | * @pvid: PVID VLAN id |
2594e906 NA |
139 | * |
140 | * IMPORTANT: Be careful when checking if there're VLAN entries using list | |
141 | * primitives because the bridge can have entries in its list which | |
142 | * are just for global context but not for filtering, i.e. they have | |
143 | * the master flag set but not the brentry flag. If you have to check | |
144 | * if there're "real" entries in the bridge please test @num_vlans | |
145 | */ | |
146 | struct net_bridge_vlan_group { | |
147 | struct rhashtable vlan_hash; | |
148 | struct list_head vlan_list; | |
6cbdceeb | 149 | u16 num_vlans; |
77751ee8 | 150 | u16 pvid; |
243a2e63 VY |
151 | }; |
152 | ||
1da177e4 LT |
153 | struct net_bridge_fdb_entry |
154 | { | |
155 | struct hlist_node hlist; | |
156 | struct net_bridge_port *dst; | |
157 | ||
7cd8861a | 158 | unsigned long updated; |
159 | unsigned long used; | |
1da177e4 | 160 | mac_addr addr; |
b22fbf22 | 161 | __u16 vlan_id; |
93859b13 JP |
162 | unsigned char is_local:1, |
163 | is_static:1, | |
cf6b8e1e SF |
164 | added_by_user:1, |
165 | added_by_external_learn:1; | |
b22fbf22 | 166 | struct rcu_head rcu; |
1da177e4 LT |
167 | }; |
168 | ||
9d06b6d8 ER |
169 | #define MDB_PG_FLAGS_PERMANENT BIT(0) |
170 | #define MDB_PG_FLAGS_OFFLOAD BIT(1) | |
171 | ||
eb1d1641 HX |
172 | struct net_bridge_port_group { |
173 | struct net_bridge_port *port; | |
e8051688 | 174 | struct net_bridge_port_group __rcu *next; |
eb1d1641 HX |
175 | struct hlist_node mglist; |
176 | struct rcu_head rcu; | |
177 | struct timer_list timer; | |
8ef2a9a5 | 178 | struct br_ip addr; |
9d06b6d8 | 179 | unsigned char flags; |
eb1d1641 HX |
180 | }; |
181 | ||
182 | struct net_bridge_mdb_entry | |
183 | { | |
184 | struct hlist_node hlist[2]; | |
eb1d1641 | 185 | struct net_bridge *br; |
e8051688 | 186 | struct net_bridge_port_group __rcu *ports; |
eb1d1641 HX |
187 | struct rcu_head rcu; |
188 | struct timer_list timer; | |
8ef2a9a5 | 189 | struct br_ip addr; |
8a870178 | 190 | bool mglist; |
eb1d1641 HX |
191 | }; |
192 | ||
193 | struct net_bridge_mdb_htable | |
194 | { | |
195 | struct hlist_head *mhash; | |
196 | struct rcu_head rcu; | |
197 | struct net_bridge_mdb_htable *old; | |
198 | u32 size; | |
199 | u32 max; | |
200 | u32 secret; | |
201 | u32 ver; | |
202 | }; | |
203 | ||
1da177e4 LT |
204 | struct net_bridge_port |
205 | { | |
206 | struct net_bridge *br; | |
207 | struct net_device *dev; | |
208 | struct list_head list; | |
209 | ||
210 | /* STP */ | |
211 | u8 priority; | |
212 | u8 state; | |
213 | u16 port_no; | |
214 | unsigned char topology_change_ack; | |
215 | unsigned char config_pending; | |
216 | port_id port_id; | |
217 | port_id designated_port; | |
218 | bridge_id designated_root; | |
219 | bridge_id designated_bridge; | |
220 | u32 path_cost; | |
221 | u32 designated_cost; | |
0c03150e | 222 | unsigned long designated_age; |
1da177e4 LT |
223 | |
224 | struct timer_list forward_delay_timer; | |
225 | struct timer_list hold_timer; | |
226 | struct timer_list message_age_timer; | |
227 | struct kobject kobj; | |
228 | struct rcu_head rcu; | |
3982d3d2 FA |
229 | |
230 | unsigned long flags; | |
eb1d1641 HX |
231 | |
232 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING | |
90010b36 | 233 | struct bridge_mcast_own_query ip4_own_query; |
cc0fdd80 | 234 | #if IS_ENABLED(CONFIG_IPV6) |
90010b36 | 235 | struct bridge_mcast_own_query ip6_own_query; |
cc0fdd80 | 236 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
eb1d1641 | 237 | unsigned char multicast_router; |
1080ab95 | 238 | struct bridge_mcast_stats __percpu *mcast_stats; |
eb1d1641 | 239 | struct timer_list multicast_router_timer; |
eb1d1641 HX |
240 | struct hlist_head mglist; |
241 | struct hlist_node rlist; | |
242 | #endif | |
e0f43752 SA |
243 | |
244 | #ifdef CONFIG_SYSFS | |
245 | char sysfs_name[IFNAMSIZ]; | |
246 | #endif | |
91d2c34a HX |
247 | |
248 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
249 | struct netpoll *np; | |
250 | #endif | |
243a2e63 | 251 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
907b1e6e | 252 | struct net_bridge_vlan_group __rcu *vlgrp; |
243a2e63 | 253 | #endif |
6bc506b4 IS |
254 | #ifdef CONFIG_NET_SWITCHDEV |
255 | int offload_fwd_mark; | |
256 | #endif | |
1da177e4 LT |
257 | }; |
258 | ||
e028e4b8 | 259 | #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) |
f3a6ddf1 | 260 | #define br_promisc_port(p) ((p)->flags & BR_PROMISC) |
e028e4b8 | 261 | |
f350a0a8 JP |
262 | #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) |
263 | ||
b5ed54e9 | 264 | static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) |
265 | { | |
716ec052 | 266 | return rcu_dereference(dev->rx_handler_data); |
b5ed54e9 | 267 | } |
268 | ||
1fb1754a | 269 | static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) |
b5ed54e9 | 270 | { |
ec1e5610 ED |
271 | return br_port_exists(dev) ? |
272 | rtnl_dereference(dev->rx_handler_data) : NULL; | |
b5ed54e9 | 273 | } |
274 | ||
1da177e4 LT |
275 | struct net_bridge |
276 | { | |
277 | spinlock_t lock; | |
278 | struct list_head port_list; | |
279 | struct net_device *dev; | |
14bb4789 | 280 | |
8f84985f | 281 | struct pcpu_sw_netstats __percpu *stats; |
1da177e4 LT |
282 | spinlock_t hash_lock; |
283 | struct hlist_head hash[BR_HASH_SIZE]; | |
34666d46 | 284 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
efb6de9b BT |
285 | union { |
286 | struct rtable fake_rtable; | |
287 | struct rt6_info fake_rt6_info; | |
288 | }; | |
4df53d8b PM |
289 | bool nf_call_iptables; |
290 | bool nf_call_ip6tables; | |
291 | bool nf_call_arptables; | |
4adf0af6 | 292 | #endif |
515853cc | 293 | u16 group_fwd_mask; |
f2808d22 | 294 | u16 group_fwd_mask_required; |
515853cc | 295 | |
1da177e4 LT |
296 | /* STP */ |
297 | bridge_id designated_root; | |
298 | bridge_id bridge_id; | |
299 | u32 root_path_cost; | |
300 | unsigned long max_age; | |
301 | unsigned long hello_time; | |
302 | unsigned long forward_delay; | |
303 | unsigned long bridge_max_age; | |
304 | unsigned long ageing_time; | |
305 | unsigned long bridge_hello_time; | |
306 | unsigned long bridge_forward_delay; | |
307 | ||
fda93d92 | 308 | u8 group_addr[ETH_ALEN]; |
204177f3 | 309 | bool group_addr_set; |
1da177e4 | 310 | u16 root_port; |
9cde0708 SH |
311 | |
312 | enum { | |
313 | BR_NO_STP, /* no spanning tree */ | |
314 | BR_KERNEL_STP, /* old STP in kernel */ | |
315 | BR_USER_STP, /* new RSTP in userspace */ | |
316 | } stp_enabled; | |
317 | ||
1da177e4 LT |
318 | unsigned char topology_change; |
319 | unsigned char topology_change_detected; | |
320 | ||
eb1d1641 HX |
321 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
322 | unsigned char multicast_router; | |
323 | ||
324 | u8 multicast_disabled:1; | |
c5c23260 | 325 | u8 multicast_querier:1; |
1c8ad5bf | 326 | u8 multicast_query_use_ifaddr:1; |
0888d5f3 | 327 | u8 has_ipv6_addr:1; |
1080ab95 | 328 | u8 multicast_stats_enabled:1; |
eb1d1641 HX |
329 | |
330 | u32 hash_elasticity; | |
331 | u32 hash_max; | |
332 | ||
333 | u32 multicast_last_member_count; | |
eb1d1641 HX |
334 | u32 multicast_startup_query_count; |
335 | ||
336 | unsigned long multicast_last_member_interval; | |
337 | unsigned long multicast_membership_interval; | |
338 | unsigned long multicast_querier_interval; | |
339 | unsigned long multicast_query_interval; | |
340 | unsigned long multicast_query_response_interval; | |
341 | unsigned long multicast_startup_query_interval; | |
342 | ||
343 | spinlock_t multicast_lock; | |
e8051688 | 344 | struct net_bridge_mdb_htable __rcu *mdb; |
eb1d1641 | 345 | struct hlist_head router_list; |
eb1d1641 HX |
346 | |
347 | struct timer_list multicast_router_timer; | |
90010b36 LL |
348 | struct bridge_mcast_other_query ip4_other_query; |
349 | struct bridge_mcast_own_query ip4_own_query; | |
dc4eb53a | 350 | struct bridge_mcast_querier ip4_querier; |
1080ab95 | 351 | struct bridge_mcast_stats __percpu *mcast_stats; |
cc0fdd80 | 352 | #if IS_ENABLED(CONFIG_IPV6) |
90010b36 LL |
353 | struct bridge_mcast_other_query ip6_other_query; |
354 | struct bridge_mcast_own_query ip6_own_query; | |
dc4eb53a | 355 | struct bridge_mcast_querier ip6_querier; |
cc0fdd80 | 356 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
eb1d1641 HX |
357 | #endif |
358 | ||
1da177e4 LT |
359 | struct timer_list hello_timer; |
360 | struct timer_list tcn_timer; | |
361 | struct timer_list topology_change_timer; | |
362 | struct timer_list gc_timer; | |
43b98c4a | 363 | struct kobject *ifobj; |
e028e4b8 | 364 | u32 auto_cnt; |
6bc506b4 IS |
365 | |
366 | #ifdef CONFIG_NET_SWITCHDEV | |
367 | int offload_fwd_mark; | |
368 | #endif | |
369 | ||
243a2e63 | 370 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
907b1e6e | 371 | struct net_bridge_vlan_group __rcu *vlgrp; |
243a2e63 | 372 | u8 vlan_enabled; |
6dada9b1 | 373 | u8 vlan_stats_enabled; |
8580e211 | 374 | __be16 vlan_proto; |
96a20d9d | 375 | u16 default_pvid; |
243a2e63 | 376 | #endif |
1da177e4 LT |
377 | }; |
378 | ||
68b7c895 HX |
379 | struct br_input_skb_cb { |
380 | struct net_device *brdev; | |
93fdd47e | 381 | |
32dec5dd | 382 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
eb1d1641 HX |
383 | int igmp; |
384 | int mrouters_only; | |
32dec5dd | 385 | #endif |
93fdd47e | 386 | |
842a9ae0 | 387 | bool proxyarp_replied; |
93fdd47e | 388 | |
20adfa1a VY |
389 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
390 | bool vlan_filtered; | |
391 | #endif | |
6bc506b4 IS |
392 | |
393 | #ifdef CONFIG_NET_SWITCHDEV | |
394 | int offload_fwd_mark; | |
395 | #endif | |
68b7c895 HX |
396 | }; |
397 | ||
398 | #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) | |
399 | ||
32dec5dd YH |
400 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
401 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) | |
402 | #else | |
403 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) | |
404 | #endif | |
405 | ||
28a16c97 | 406 | #define br_printk(level, br, format, args...) \ |
407 | printk(level "%s: " format, (br)->dev->name, ##args) | |
408 | ||
409 | #define br_err(__br, format, args...) \ | |
410 | br_printk(KERN_ERR, __br, format, ##args) | |
411 | #define br_warn(__br, format, args...) \ | |
412 | br_printk(KERN_WARNING, __br, format, ##args) | |
413 | #define br_notice(__br, format, args...) \ | |
414 | br_printk(KERN_NOTICE, __br, format, ##args) | |
415 | #define br_info(__br, format, args...) \ | |
416 | br_printk(KERN_INFO, __br, format, ##args) | |
417 | ||
418 | #define br_debug(br, format, args...) \ | |
419 | pr_debug("%s: " format, (br)->dev->name, ##args) | |
420 | ||
1da177e4 LT |
421 | /* called under bridge lock */ |
422 | static inline int br_is_root_bridge(const struct net_bridge *br) | |
423 | { | |
424 | return !memcmp(&br->bridge_id, &br->designated_root, 8); | |
425 | } | |
426 | ||
2594e906 NA |
427 | /* check if a VLAN entry is global */ |
428 | static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) | |
429 | { | |
430 | return v->flags & BRIDGE_VLAN_INFO_MASTER; | |
431 | } | |
432 | ||
433 | /* check if a VLAN entry is used by the bridge */ | |
434 | static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) | |
435 | { | |
436 | return v->flags & BRIDGE_VLAN_INFO_BRENTRY; | |
437 | } | |
438 | ||
6be144f6 | 439 | /* check if we should use the vlan entry, returns false if it's only context */ |
2594e906 NA |
440 | static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) |
441 | { | |
442 | if (br_vlan_is_master(v)) { | |
443 | if (br_vlan_is_brentry(v)) | |
444 | return true; | |
445 | else | |
446 | return false; | |
447 | } | |
448 | ||
449 | return true; | |
450 | } | |
451 | ||
1da177e4 | 452 | /* br_device.c */ |
348662a1 JP |
453 | void br_dev_setup(struct net_device *dev); |
454 | void br_dev_delete(struct net_device *dev, struct list_head *list); | |
455 | netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); | |
cfb478da | 456 | #ifdef CONFIG_NET_POLL_CONTROLLER |
91d2c34a HX |
457 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
458 | struct sk_buff *skb) | |
459 | { | |
460 | struct netpoll *np = p->np; | |
461 | ||
462 | if (np) | |
463 | netpoll_send_skb(np, skb); | |
464 | } | |
465 | ||
a8779ec1 | 466 | int br_netpoll_enable(struct net_bridge_port *p); |
348662a1 | 467 | void br_netpoll_disable(struct net_bridge_port *p); |
cfb478da | 468 | #else |
9f70b0fc | 469 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
91d2c34a HX |
470 | struct sk_buff *skb) |
471 | { | |
472 | } | |
cfb478da | 473 | |
a8779ec1 | 474 | static inline int br_netpoll_enable(struct net_bridge_port *p) |
91d2c34a HX |
475 | { |
476 | return 0; | |
477 | } | |
478 | ||
479 | static inline void br_netpoll_disable(struct net_bridge_port *p) | |
480 | { | |
481 | } | |
cfb478da | 482 | #endif |
1da177e4 LT |
483 | |
484 | /* br_fdb.c */ | |
348662a1 JP |
485 | int br_fdb_init(void); |
486 | void br_fdb_fini(void); | |
487 | void br_fdb_flush(struct net_bridge *br); | |
424bb9c9 TM |
488 | void br_fdb_find_delete_local(struct net_bridge *br, |
489 | const struct net_bridge_port *p, | |
490 | const unsigned char *addr, u16 vid); | |
348662a1 JP |
491 | void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); |
492 | void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); | |
493 | void br_fdb_cleanup(unsigned long arg); | |
494 | void br_fdb_delete_by_port(struct net_bridge *br, | |
1ea2d020 | 495 | const struct net_bridge_port *p, u16 vid, int do_all); |
348662a1 JP |
496 | struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, |
497 | const unsigned char *addr, __u16 vid); | |
498 | int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); | |
499 | int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, | |
500 | unsigned long off); | |
501 | int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, | |
502 | const unsigned char *addr, u16 vid); | |
503 | void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, | |
a5642ab4 | 504 | const unsigned char *addr, u16 vid, bool added_by_user); |
348662a1 JP |
505 | |
506 | int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], | |
f6f6424b | 507 | struct net_device *dev, const unsigned char *addr, u16 vid); |
348662a1 | 508 | int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, |
f6f6424b | 509 | const unsigned char *addr, u16 vid, u16 nlh_flags); |
348662a1 | 510 | int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, |
d297653d | 511 | struct net_device *dev, struct net_device *fdev, int *idx); |
8db24af7 VY |
512 | int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); |
513 | void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); | |
3aeb6617 JP |
514 | int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, |
515 | const unsigned char *addr, u16 vid); | |
516 | int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, | |
517 | const unsigned char *addr, u16 vid); | |
1da177e4 LT |
518 | |
519 | /* br_forward.c */ | |
8addd5e7 NA |
520 | enum br_pkt_type { |
521 | BR_PKT_UNICAST, | |
522 | BR_PKT_MULTICAST, | |
523 | BR_PKT_BROADCAST | |
524 | }; | |
0c4b51f0 | 525 | int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); |
b35c5f63 | 526 | void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, |
37b090e6 | 527 | bool local_rcv, bool local_orig); |
0c4b51f0 | 528 | int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); |
37b090e6 | 529 | void br_flood(struct net_bridge *br, struct sk_buff *skb, |
8addd5e7 | 530 | enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); |
1da177e4 LT |
531 | |
532 | /* br_if.c */ | |
348662a1 JP |
533 | void br_port_carrier_check(struct net_bridge_port *p); |
534 | int br_add_bridge(struct net *net, const char *name); | |
535 | int br_del_bridge(struct net *net, const char *name); | |
348662a1 JP |
536 | int br_add_if(struct net_bridge *br, struct net_device *dev); |
537 | int br_del_if(struct net_bridge *br, struct net_device *dev); | |
538 | int br_min_mtu(const struct net_bridge *br); | |
539 | netdev_features_t br_features_recompute(struct net_bridge *br, | |
540 | netdev_features_t features); | |
e028e4b8 | 541 | void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); |
2796d0c6 | 542 | void br_manage_promisc(struct net_bridge *br); |
1da177e4 LT |
543 | |
544 | /* br_input.c */ | |
0c4b51f0 | 545 | int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); |
348662a1 | 546 | rx_handler_result_t br_handle_frame(struct sk_buff **pskb); |
1da177e4 | 547 | |
859828c0 JP |
548 | static inline bool br_rx_handler_check_rcu(const struct net_device *dev) |
549 | { | |
550 | return rcu_dereference(dev->rx_handler) == br_handle_frame; | |
551 | } | |
552 | ||
553 | static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) | |
554 | { | |
555 | return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; | |
556 | } | |
557 | ||
1da177e4 | 558 | /* br_ioctl.c */ |
348662a1 JP |
559 | int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); |
560 | int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, | |
561 | void __user *arg); | |
1da177e4 | 562 | |
eb1d1641 HX |
563 | /* br_multicast.c */ |
564 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING | |
2ce297fc | 565 | extern unsigned int br_mdb_rehash_seq; |
348662a1 | 566 | int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, |
394efd19 | 567 | struct sk_buff *skb, u16 vid); |
348662a1 JP |
568 | struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, |
569 | struct sk_buff *skb, u16 vid); | |
1080ab95 | 570 | int br_multicast_add_port(struct net_bridge_port *port); |
348662a1 JP |
571 | void br_multicast_del_port(struct net_bridge_port *port); |
572 | void br_multicast_enable_port(struct net_bridge_port *port); | |
573 | void br_multicast_disable_port(struct net_bridge_port *port); | |
574 | void br_multicast_init(struct net_bridge *br); | |
575 | void br_multicast_open(struct net_bridge *br); | |
576 | void br_multicast_stop(struct net_bridge *br); | |
e10177ab | 577 | void br_multicast_dev_del(struct net_bridge *br); |
37b090e6 NA |
578 | void br_multicast_flood(struct net_bridge_mdb_entry *mdst, |
579 | struct sk_buff *skb, bool local_rcv, bool local_orig); | |
348662a1 JP |
580 | int br_multicast_set_router(struct net_bridge *br, unsigned long val); |
581 | int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); | |
582 | int br_multicast_toggle(struct net_bridge *br, unsigned long val); | |
583 | int br_multicast_set_querier(struct net_bridge *br, unsigned long val); | |
584 | int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); | |
585 | struct net_bridge_mdb_entry * | |
586 | br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); | |
587 | struct net_bridge_mdb_entry * | |
588 | br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, | |
589 | struct br_ip *group); | |
590 | void br_multicast_free_pg(struct rcu_head *head); | |
591 | struct net_bridge_port_group * | |
592 | br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, | |
593 | struct net_bridge_port_group __rcu *next, | |
9d06b6d8 | 594 | unsigned char flags); |
348662a1 JP |
595 | void br_mdb_init(void); |
596 | void br_mdb_uninit(void); | |
45ebcce5 ER |
597 | void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, |
598 | struct br_ip *group, int type, u8 flags); | |
949f1e39 SA |
599 | void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, |
600 | int type); | |
1080ab95 | 601 | void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, |
a65056ec | 602 | const struct sk_buff *skb, u8 type, u8 dir); |
1080ab95 NA |
603 | int br_multicast_init_stats(struct net_bridge *br); |
604 | void br_multicast_get_stats(const struct net_bridge *br, | |
605 | const struct net_bridge_port *p, | |
606 | struct br_mcast_stats *dest); | |
85b35269 | 607 | |
cfd56754 CW |
608 | #define mlock_dereference(X, br) \ |
609 | rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) | |
610 | ||
85b35269 SS |
611 | static inline bool br_multicast_is_router(struct net_bridge *br) |
612 | { | |
613 | return br->multicast_router == 2 || | |
614 | (br->multicast_router == 1 && | |
615 | timer_pending(&br->multicast_router_timer)); | |
616 | } | |
b00589af | 617 | |
cc0fdd80 LL |
618 | static inline bool |
619 | __br_multicast_querier_exists(struct net_bridge *br, | |
0888d5f3 | 620 | struct bridge_mcast_other_query *querier, |
621 | const bool is_ipv6) | |
b00589af | 622 | { |
0888d5f3 | 623 | bool own_querier_enabled; |
624 | ||
625 | if (br->multicast_querier) { | |
626 | if (is_ipv6 && !br->has_ipv6_addr) | |
627 | own_querier_enabled = false; | |
628 | else | |
629 | own_querier_enabled = true; | |
630 | } else { | |
631 | own_querier_enabled = false; | |
632 | } | |
633 | ||
cc0fdd80 | 634 | return time_is_before_jiffies(querier->delay_time) && |
0888d5f3 | 635 | (own_querier_enabled || timer_pending(&querier->timer)); |
cc0fdd80 LL |
636 | } |
637 | ||
638 | static inline bool br_multicast_querier_exists(struct net_bridge *br, | |
639 | struct ethhdr *eth) | |
640 | { | |
641 | switch (eth->h_proto) { | |
642 | case (htons(ETH_P_IP)): | |
0888d5f3 | 643 | return __br_multicast_querier_exists(br, |
644 | &br->ip4_other_query, false); | |
cc0fdd80 LL |
645 | #if IS_ENABLED(CONFIG_IPV6) |
646 | case (htons(ETH_P_IPV6)): | |
0888d5f3 | 647 | return __br_multicast_querier_exists(br, |
648 | &br->ip6_other_query, true); | |
cc0fdd80 LL |
649 | #endif |
650 | default: | |
651 | return false; | |
652 | } | |
b00589af | 653 | } |
1080ab95 NA |
654 | |
655 | static inline int br_multicast_igmp_type(const struct sk_buff *skb) | |
656 | { | |
657 | return BR_INPUT_SKB_CB(skb)->igmp; | |
658 | } | |
eb1d1641 HX |
659 | #else |
660 | static inline int br_multicast_rcv(struct net_bridge *br, | |
661 | struct net_bridge_port *port, | |
06499098 VY |
662 | struct sk_buff *skb, |
663 | u16 vid) | |
eb1d1641 HX |
664 | { |
665 | return 0; | |
666 | } | |
667 | ||
668 | static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, | |
fbca58a2 | 669 | struct sk_buff *skb, u16 vid) |
eb1d1641 HX |
670 | { |
671 | return NULL; | |
672 | } | |
673 | ||
1080ab95 | 674 | static inline int br_multicast_add_port(struct net_bridge_port *port) |
eb1d1641 | 675 | { |
1080ab95 | 676 | return 0; |
eb1d1641 HX |
677 | } |
678 | ||
679 | static inline void br_multicast_del_port(struct net_bridge_port *port) | |
680 | { | |
681 | } | |
682 | ||
683 | static inline void br_multicast_enable_port(struct net_bridge_port *port) | |
684 | { | |
685 | } | |
686 | ||
687 | static inline void br_multicast_disable_port(struct net_bridge_port *port) | |
688 | { | |
689 | } | |
690 | ||
691 | static inline void br_multicast_init(struct net_bridge *br) | |
692 | { | |
693 | } | |
694 | ||
695 | static inline void br_multicast_open(struct net_bridge *br) | |
696 | { | |
697 | } | |
698 | ||
699 | static inline void br_multicast_stop(struct net_bridge *br) | |
700 | { | |
701 | } | |
5cb5e947 | 702 | |
a7ce45a7 NA |
703 | static inline void br_multicast_dev_del(struct net_bridge *br) |
704 | { | |
705 | } | |
706 | ||
37b090e6 NA |
707 | static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, |
708 | struct sk_buff *skb, | |
709 | bool local_rcv, bool local_orig) | |
5cb5e947 HX |
710 | { |
711 | } | |
712 | ||
eb1d1641 HX |
713 | static inline bool br_multicast_is_router(struct net_bridge *br) |
714 | { | |
85b35269 | 715 | return 0; |
eb1d1641 | 716 | } |
37b090e6 | 717 | |
cc0fdd80 LL |
718 | static inline bool br_multicast_querier_exists(struct net_bridge *br, |
719 | struct ethhdr *eth) | |
b00589af LL |
720 | { |
721 | return false; | |
722 | } | |
37b090e6 | 723 | |
fdb184d1 RR |
724 | static inline void br_mdb_init(void) |
725 | { | |
726 | } | |
37b090e6 | 727 | |
fdb184d1 RR |
728 | static inline void br_mdb_uninit(void) |
729 | { | |
730 | } | |
1080ab95 NA |
731 | |
732 | static inline void br_multicast_count(struct net_bridge *br, | |
733 | const struct net_bridge_port *p, | |
a65056ec NA |
734 | const struct sk_buff *skb, |
735 | u8 type, u8 dir) | |
1080ab95 NA |
736 | { |
737 | } | |
738 | ||
739 | static inline int br_multicast_init_stats(struct net_bridge *br) | |
740 | { | |
741 | return 0; | |
742 | } | |
743 | ||
744 | static inline int br_multicast_igmp_type(const struct sk_buff *skb) | |
745 | { | |
746 | return 0; | |
747 | } | |
85b35269 | 748 | #endif |
eb1d1641 | 749 | |
243a2e63 VY |
750 | /* br_vlan.c */ |
751 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
77751ee8 NA |
752 | bool br_allowed_ingress(const struct net_bridge *br, |
753 | struct net_bridge_vlan_group *vg, struct sk_buff *skb, | |
754 | u16 *vid); | |
755 | bool br_allowed_egress(struct net_bridge_vlan_group *vg, | |
348662a1 | 756 | const struct sk_buff *skb); |
e0d7968a | 757 | bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); |
348662a1 | 758 | struct sk_buff *br_handle_vlan(struct net_bridge *br, |
2594e906 | 759 | struct net_bridge_vlan_group *vg, |
348662a1 JP |
760 | struct sk_buff *skb); |
761 | int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); | |
762 | int br_vlan_delete(struct net_bridge *br, u16 vid); | |
763 | void br_vlan_flush(struct net_bridge *br); | |
2594e906 | 764 | struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); |
204177f3 | 765 | void br_recalculate_fwd_mask(struct net_bridge *br); |
a7854037 | 766 | int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
348662a1 | 767 | int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
d2d427b3 | 768 | int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); |
204177f3 | 769 | int br_vlan_set_proto(struct net_bridge *br, unsigned long val); |
6dada9b1 | 770 | int br_vlan_set_stats(struct net_bridge *br, unsigned long val); |
5be5a2df | 771 | int br_vlan_init(struct net_bridge *br); |
96a20d9d | 772 | int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); |
0f963b75 | 773 | int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid); |
348662a1 JP |
774 | int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); |
775 | int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); | |
776 | void nbp_vlan_flush(struct net_bridge_port *port); | |
5be5a2df | 777 | int nbp_vlan_init(struct net_bridge_port *port); |
2594e906 | 778 | int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); |
a60c0903 NA |
779 | void br_vlan_get_stats(const struct net_bridge_vlan *v, |
780 | struct br_vlan_stats *stats); | |
a37b85c9 | 781 | |
2594e906 NA |
782 | static inline struct net_bridge_vlan_group *br_vlan_group( |
783 | const struct net_bridge *br) | |
a37b85c9 | 784 | { |
907b1e6e | 785 | return rtnl_dereference(br->vlgrp); |
a37b85c9 VY |
786 | } |
787 | ||
2594e906 NA |
788 | static inline struct net_bridge_vlan_group *nbp_vlan_group( |
789 | const struct net_bridge_port *p) | |
a37b85c9 | 790 | { |
907b1e6e NA |
791 | return rtnl_dereference(p->vlgrp); |
792 | } | |
793 | ||
794 | static inline struct net_bridge_vlan_group *br_vlan_group_rcu( | |
795 | const struct net_bridge *br) | |
796 | { | |
797 | return rcu_dereference(br->vlgrp); | |
798 | } | |
799 | ||
800 | static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( | |
801 | const struct net_bridge_port *p) | |
802 | { | |
803 | return rcu_dereference(p->vlgrp); | |
a37b85c9 VY |
804 | } |
805 | ||
806 | /* Since bridge now depends on 8021Q module, but the time bridge sees the | |
807 | * skb, the vlan tag will always be present if the frame was tagged. | |
808 | */ | |
809 | static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) | |
810 | { | |
811 | int err = 0; | |
812 | ||
2594e906 | 813 | if (skb_vlan_tag_present(skb)) { |
df8a39de | 814 | *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; |
2594e906 | 815 | } else { |
a37b85c9 VY |
816 | *vid = 0; |
817 | err = -EINVAL; | |
818 | } | |
819 | ||
820 | return err; | |
821 | } | |
78851988 | 822 | |
77751ee8 | 823 | static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) |
2594e906 | 824 | { |
77751ee8 | 825 | if (!vg) |
2594e906 NA |
826 | return 0; |
827 | ||
828 | smp_rmb(); | |
77751ee8 | 829 | return vg->pvid; |
78851988 VY |
830 | } |
831 | ||
2796d0c6 VY |
832 | static inline int br_vlan_enabled(struct net_bridge *br) |
833 | { | |
834 | return br->vlan_enabled; | |
835 | } | |
243a2e63 | 836 | #else |
77751ee8 NA |
837 | static inline bool br_allowed_ingress(const struct net_bridge *br, |
838 | struct net_bridge_vlan_group *vg, | |
78851988 VY |
839 | struct sk_buff *skb, |
840 | u16 *vid) | |
a37b85c9 VY |
841 | { |
842 | return true; | |
843 | } | |
844 | ||
2594e906 | 845 | static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, |
85f46c6b VY |
846 | const struct sk_buff *skb) |
847 | { | |
848 | return true; | |
849 | } | |
850 | ||
e0d7968a TM |
851 | static inline bool br_should_learn(struct net_bridge_port *p, |
852 | struct sk_buff *skb, u16 *vid) | |
853 | { | |
854 | return true; | |
855 | } | |
856 | ||
78851988 | 857 | static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, |
2594e906 | 858 | struct net_bridge_vlan_group *vg, |
78851988 VY |
859 | struct sk_buff *skb) |
860 | { | |
861 | return skb; | |
862 | } | |
863 | ||
552406c4 | 864 | static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) |
243a2e63 VY |
865 | { |
866 | return -EOPNOTSUPP; | |
867 | } | |
868 | ||
869 | static inline int br_vlan_delete(struct net_bridge *br, u16 vid) | |
870 | { | |
871 | return -EOPNOTSUPP; | |
872 | } | |
873 | ||
874 | static inline void br_vlan_flush(struct net_bridge *br) | |
875 | { | |
876 | } | |
877 | ||
204177f3 TM |
878 | static inline void br_recalculate_fwd_mask(struct net_bridge *br) |
879 | { | |
880 | } | |
881 | ||
5be5a2df | 882 | static inline int br_vlan_init(struct net_bridge *br) |
8580e211 | 883 | { |
5be5a2df | 884 | return 0; |
8580e211 TM |
885 | } |
886 | ||
552406c4 | 887 | static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) |
243a2e63 VY |
888 | { |
889 | return -EOPNOTSUPP; | |
890 | } | |
891 | ||
892 | static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) | |
893 | { | |
894 | return -EOPNOTSUPP; | |
895 | } | |
896 | ||
897 | static inline void nbp_vlan_flush(struct net_bridge_port *port) | |
898 | { | |
899 | } | |
900 | ||
2594e906 NA |
901 | static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, |
902 | u16 vid) | |
a37b85c9 VY |
903 | { |
904 | return NULL; | |
905 | } | |
906 | ||
2594e906 | 907 | static inline int nbp_vlan_init(struct net_bridge_port *port) |
bc9a25d2 | 908 | { |
2594e906 | 909 | return 0; |
bc9a25d2 VY |
910 | } |
911 | ||
2594e906 | 912 | static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) |
5be5a2df VY |
913 | { |
914 | return 0; | |
915 | } | |
916 | ||
77751ee8 | 917 | static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) |
78851988 | 918 | { |
3df6bf45 | 919 | return 0; |
78851988 | 920 | } |
2796d0c6 | 921 | |
d4f0e095 | 922 | static inline int br_vlan_enabled(struct net_bridge *br) |
2796d0c6 VY |
923 | { |
924 | return 0; | |
925 | } | |
a7854037 NA |
926 | |
927 | static inline int __br_vlan_filter_toggle(struct net_bridge *br, | |
928 | unsigned long val) | |
929 | { | |
930 | return -EOPNOTSUPP; | |
931 | } | |
2594e906 NA |
932 | |
933 | static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, | |
934 | u32 filter_mask) | |
935 | { | |
936 | return 0; | |
937 | } | |
938 | ||
939 | static inline struct net_bridge_vlan_group *br_vlan_group( | |
940 | const struct net_bridge *br) | |
941 | { | |
942 | return NULL; | |
943 | } | |
944 | ||
945 | static inline struct net_bridge_vlan_group *nbp_vlan_group( | |
946 | const struct net_bridge_port *p) | |
947 | { | |
948 | return NULL; | |
949 | } | |
907b1e6e NA |
950 | |
951 | static inline struct net_bridge_vlan_group *br_vlan_group_rcu( | |
952 | const struct net_bridge *br) | |
953 | { | |
954 | return NULL; | |
955 | } | |
956 | ||
957 | static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( | |
958 | const struct net_bridge_port *p) | |
959 | { | |
960 | return NULL; | |
961 | } | |
a60c0903 NA |
962 | |
963 | static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, | |
964 | struct br_vlan_stats *stats) | |
965 | { | |
966 | } | |
243a2e63 VY |
967 | #endif |
968 | ||
1a4ba64d PNA |
969 | struct nf_br_ops { |
970 | int (*br_dev_xmit_hook)(struct sk_buff *skb); | |
971 | }; | |
972 | extern const struct nf_br_ops __rcu *nf_br_ops; | |
973 | ||
1da177e4 | 974 | /* br_netfilter.c */ |
34666d46 PNA |
975 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
976 | int br_nf_core_init(void); | |
977 | void br_nf_core_fini(void); | |
348662a1 | 978 | void br_netfilter_rtable_init(struct net_bridge *); |
c0909713 | 979 | #else |
34666d46 PNA |
980 | static inline int br_nf_core_init(void) { return 0; } |
981 | static inline void br_nf_core_fini(void) {} | |
4adf0af6 | 982 | #define br_netfilter_rtable_init(x) |
c0909713 | 983 | #endif |
1da177e4 LT |
984 | |
985 | /* br_stp.c */ | |
775dd692 | 986 | void br_set_state(struct net_bridge_port *p, unsigned int state); |
348662a1 JP |
987 | struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); |
988 | void br_init_port(struct net_bridge_port *p); | |
989 | void br_become_designated_port(struct net_bridge_port *p); | |
1da177e4 | 990 | |
348662a1 JP |
991 | void __br_set_forward_delay(struct net_bridge *br, unsigned long t); |
992 | int br_set_forward_delay(struct net_bridge *br, unsigned long x); | |
993 | int br_set_hello_time(struct net_bridge *br, unsigned long x); | |
994 | int br_set_max_age(struct net_bridge *br, unsigned long x); | |
9e0b27fe | 995 | int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); |
14f98f25 | 996 | |
997 | ||
1da177e4 | 998 | /* br_stp_if.c */ |
348662a1 JP |
999 | void br_stp_enable_bridge(struct net_bridge *br); |
1000 | void br_stp_disable_bridge(struct net_bridge *br); | |
1001 | void br_stp_set_enabled(struct net_bridge *br, unsigned long val); | |
1002 | void br_stp_enable_port(struct net_bridge_port *p); | |
1003 | void br_stp_disable_port(struct net_bridge_port *p); | |
1004 | bool br_stp_recalculate_bridge_id(struct net_bridge *br); | |
1005 | void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); | |
1006 | void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); | |
1007 | int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); | |
1008 | int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); | |
1009 | ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); | |
1da177e4 LT |
1010 | |
1011 | /* br_stp_bpdu.c */ | |
7c85fbf0 | 1012 | struct stp_proto; |
348662a1 JP |
1013 | void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, |
1014 | struct net_device *dev); | |
1da177e4 LT |
1015 | |
1016 | /* br_stp_timer.c */ | |
348662a1 JP |
1017 | void br_stp_timer_init(struct net_bridge *br); |
1018 | void br_stp_port_timer_init(struct net_bridge_port *p); | |
1019 | unsigned long br_timer_value(const struct timer_list *timer); | |
1da177e4 LT |
1020 | |
1021 | /* br.c */ | |
e6373c4c | 1022 | #if IS_ENABLED(CONFIG_ATM_LANE) |
da678292 MM |
1023 | extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); |
1024 | #endif | |
1da177e4 | 1025 | |
11dc1f36 | 1026 | /* br_netlink.c */ |
149ddd83 | 1027 | extern struct rtnl_link_ops br_link_ops; |
348662a1 JP |
1028 | int br_netlink_init(void); |
1029 | void br_netlink_fini(void); | |
1030 | void br_ifinfo_notify(int event, struct net_bridge_port *port); | |
add511b3 RP |
1031 | int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); |
1032 | int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); | |
348662a1 | 1033 | int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, |
46c264da | 1034 | u32 filter_mask, int nlflags); |
11dc1f36 | 1035 | |
1da177e4 LT |
1036 | #ifdef CONFIG_SYSFS |
1037 | /* br_sysfs_if.c */ | |
52cf25d0 | 1038 | extern const struct sysfs_ops brport_sysfs_ops; |
348662a1 JP |
1039 | int br_sysfs_addif(struct net_bridge_port *p); |
1040 | int br_sysfs_renameif(struct net_bridge_port *p); | |
1da177e4 LT |
1041 | |
1042 | /* br_sysfs_br.c */ | |
348662a1 JP |
1043 | int br_sysfs_addbr(struct net_device *dev); |
1044 | void br_sysfs_delbr(struct net_device *dev); | |
1da177e4 LT |
1045 | |
1046 | #else | |
1047 | ||
0cb2bbbe LJ |
1048 | static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } |
1049 | static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } | |
1050 | static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } | |
1051 | static inline void br_sysfs_delbr(struct net_device *dev) { return; } | |
1da177e4 LT |
1052 | #endif /* CONFIG_SYSFS */ |
1053 | ||
6bc506b4 IS |
1054 | /* br_switchdev.c */ |
1055 | #ifdef CONFIG_NET_SWITCHDEV | |
1056 | int nbp_switchdev_mark_set(struct net_bridge_port *p); | |
1057 | void nbp_switchdev_frame_mark(const struct net_bridge_port *p, | |
1058 | struct sk_buff *skb); | |
1059 | bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, | |
1060 | const struct sk_buff *skb); | |
1061 | #else | |
1062 | static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) | |
1063 | { | |
1064 | return 0; | |
1065 | } | |
1066 | ||
1067 | static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, | |
1068 | struct sk_buff *skb) | |
1069 | { | |
1070 | } | |
1071 | ||
1072 | static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, | |
1073 | const struct sk_buff *skb) | |
1074 | { | |
1075 | return true; | |
1076 | } | |
1077 | #endif /* CONFIG_NET_SWITCHDEV */ | |
1078 | ||
1da177e4 | 1079 | #endif |