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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> |
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; | |
1da177e4 | 303 | unsigned long ageing_time; |
34d8acd8 | 304 | unsigned long bridge_max_age; |
1da177e4 LT |
305 | unsigned long bridge_hello_time; |
306 | unsigned long bridge_forward_delay; | |
34d8acd8 | 307 | unsigned long bridge_ageing_time; |
1da177e4 | 308 | |
fda93d92 | 309 | u8 group_addr[ETH_ALEN]; |
204177f3 | 310 | bool group_addr_set; |
1da177e4 | 311 | u16 root_port; |
9cde0708 SH |
312 | |
313 | enum { | |
314 | BR_NO_STP, /* no spanning tree */ | |
315 | BR_KERNEL_STP, /* old STP in kernel */ | |
316 | BR_USER_STP, /* new RSTP in userspace */ | |
317 | } stp_enabled; | |
318 | ||
1da177e4 LT |
319 | unsigned char topology_change; |
320 | unsigned char topology_change_detected; | |
321 | ||
eb1d1641 HX |
322 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
323 | unsigned char multicast_router; | |
324 | ||
325 | u8 multicast_disabled:1; | |
c5c23260 | 326 | u8 multicast_querier:1; |
1c8ad5bf | 327 | u8 multicast_query_use_ifaddr:1; |
0888d5f3 | 328 | u8 has_ipv6_addr:1; |
1080ab95 | 329 | u8 multicast_stats_enabled:1; |
eb1d1641 HX |
330 | |
331 | u32 hash_elasticity; | |
332 | u32 hash_max; | |
333 | ||
334 | u32 multicast_last_member_count; | |
eb1d1641 HX |
335 | u32 multicast_startup_query_count; |
336 | ||
5e923585 NA |
337 | u8 multicast_igmp_version; |
338 | ||
eb1d1641 HX |
339 | unsigned long multicast_last_member_interval; |
340 | unsigned long multicast_membership_interval; | |
341 | unsigned long multicast_querier_interval; | |
342 | unsigned long multicast_query_interval; | |
343 | unsigned long multicast_query_response_interval; | |
344 | unsigned long multicast_startup_query_interval; | |
345 | ||
346 | spinlock_t multicast_lock; | |
e8051688 | 347 | struct net_bridge_mdb_htable __rcu *mdb; |
eb1d1641 | 348 | struct hlist_head router_list; |
eb1d1641 HX |
349 | |
350 | struct timer_list multicast_router_timer; | |
90010b36 LL |
351 | struct bridge_mcast_other_query ip4_other_query; |
352 | struct bridge_mcast_own_query ip4_own_query; | |
dc4eb53a | 353 | struct bridge_mcast_querier ip4_querier; |
1080ab95 | 354 | struct bridge_mcast_stats __percpu *mcast_stats; |
cc0fdd80 | 355 | #if IS_ENABLED(CONFIG_IPV6) |
90010b36 LL |
356 | struct bridge_mcast_other_query ip6_other_query; |
357 | struct bridge_mcast_own_query ip6_own_query; | |
dc4eb53a | 358 | struct bridge_mcast_querier ip6_querier; |
aa2ae3e7 | 359 | u8 multicast_mld_version; |
cc0fdd80 | 360 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
eb1d1641 HX |
361 | #endif |
362 | ||
1da177e4 LT |
363 | struct timer_list hello_timer; |
364 | struct timer_list tcn_timer; | |
365 | struct timer_list topology_change_timer; | |
366 | struct timer_list gc_timer; | |
43b98c4a | 367 | struct kobject *ifobj; |
e028e4b8 | 368 | u32 auto_cnt; |
6bc506b4 IS |
369 | |
370 | #ifdef CONFIG_NET_SWITCHDEV | |
371 | int offload_fwd_mark; | |
372 | #endif | |
373 | ||
243a2e63 | 374 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
907b1e6e | 375 | struct net_bridge_vlan_group __rcu *vlgrp; |
243a2e63 | 376 | u8 vlan_enabled; |
6dada9b1 | 377 | u8 vlan_stats_enabled; |
8580e211 | 378 | __be16 vlan_proto; |
96a20d9d | 379 | u16 default_pvid; |
243a2e63 | 380 | #endif |
1da177e4 LT |
381 | }; |
382 | ||
68b7c895 HX |
383 | struct br_input_skb_cb { |
384 | struct net_device *brdev; | |
93fdd47e | 385 | |
32dec5dd | 386 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
eb1d1641 HX |
387 | int igmp; |
388 | int mrouters_only; | |
32dec5dd | 389 | #endif |
93fdd47e | 390 | |
842a9ae0 | 391 | bool proxyarp_replied; |
93fdd47e | 392 | |
20adfa1a VY |
393 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
394 | bool vlan_filtered; | |
395 | #endif | |
6bc506b4 IS |
396 | |
397 | #ifdef CONFIG_NET_SWITCHDEV | |
398 | int offload_fwd_mark; | |
399 | #endif | |
68b7c895 HX |
400 | }; |
401 | ||
402 | #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) | |
403 | ||
32dec5dd YH |
404 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
405 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) | |
406 | #else | |
407 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) | |
408 | #endif | |
409 | ||
28a16c97 | 410 | #define br_printk(level, br, format, args...) \ |
411 | printk(level "%s: " format, (br)->dev->name, ##args) | |
412 | ||
413 | #define br_err(__br, format, args...) \ | |
414 | br_printk(KERN_ERR, __br, format, ##args) | |
415 | #define br_warn(__br, format, args...) \ | |
416 | br_printk(KERN_WARNING, __br, format, ##args) | |
417 | #define br_notice(__br, format, args...) \ | |
418 | br_printk(KERN_NOTICE, __br, format, ##args) | |
419 | #define br_info(__br, format, args...) \ | |
420 | br_printk(KERN_INFO, __br, format, ##args) | |
421 | ||
422 | #define br_debug(br, format, args...) \ | |
423 | pr_debug("%s: " format, (br)->dev->name, ##args) | |
424 | ||
1da177e4 LT |
425 | /* called under bridge lock */ |
426 | static inline int br_is_root_bridge(const struct net_bridge *br) | |
427 | { | |
428 | return !memcmp(&br->bridge_id, &br->designated_root, 8); | |
429 | } | |
430 | ||
2594e906 NA |
431 | /* check if a VLAN entry is global */ |
432 | static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) | |
433 | { | |
434 | return v->flags & BRIDGE_VLAN_INFO_MASTER; | |
435 | } | |
436 | ||
437 | /* check if a VLAN entry is used by the bridge */ | |
438 | static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) | |
439 | { | |
440 | return v->flags & BRIDGE_VLAN_INFO_BRENTRY; | |
441 | } | |
442 | ||
6be144f6 | 443 | /* check if we should use the vlan entry, returns false if it's only context */ |
2594e906 NA |
444 | static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) |
445 | { | |
446 | if (br_vlan_is_master(v)) { | |
447 | if (br_vlan_is_brentry(v)) | |
448 | return true; | |
449 | else | |
450 | return false; | |
451 | } | |
452 | ||
453 | return true; | |
454 | } | |
455 | ||
1da177e4 | 456 | /* br_device.c */ |
348662a1 JP |
457 | void br_dev_setup(struct net_device *dev); |
458 | void br_dev_delete(struct net_device *dev, struct list_head *list); | |
459 | netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); | |
cfb478da | 460 | #ifdef CONFIG_NET_POLL_CONTROLLER |
91d2c34a HX |
461 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
462 | struct sk_buff *skb) | |
463 | { | |
464 | struct netpoll *np = p->np; | |
465 | ||
466 | if (np) | |
467 | netpoll_send_skb(np, skb); | |
468 | } | |
469 | ||
a8779ec1 | 470 | int br_netpoll_enable(struct net_bridge_port *p); |
348662a1 | 471 | void br_netpoll_disable(struct net_bridge_port *p); |
cfb478da | 472 | #else |
9f70b0fc | 473 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
91d2c34a HX |
474 | struct sk_buff *skb) |
475 | { | |
476 | } | |
cfb478da | 477 | |
a8779ec1 | 478 | static inline int br_netpoll_enable(struct net_bridge_port *p) |
91d2c34a HX |
479 | { |
480 | return 0; | |
481 | } | |
482 | ||
483 | static inline void br_netpoll_disable(struct net_bridge_port *p) | |
484 | { | |
485 | } | |
cfb478da | 486 | #endif |
1da177e4 LT |
487 | |
488 | /* br_fdb.c */ | |
348662a1 JP |
489 | int br_fdb_init(void); |
490 | void br_fdb_fini(void); | |
491 | void br_fdb_flush(struct net_bridge *br); | |
424bb9c9 TM |
492 | void br_fdb_find_delete_local(struct net_bridge *br, |
493 | const struct net_bridge_port *p, | |
494 | const unsigned char *addr, u16 vid); | |
348662a1 JP |
495 | void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); |
496 | void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); | |
497 | void br_fdb_cleanup(unsigned long arg); | |
498 | void br_fdb_delete_by_port(struct net_bridge *br, | |
1ea2d020 | 499 | const struct net_bridge_port *p, u16 vid, int do_all); |
348662a1 JP |
500 | struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, |
501 | const unsigned char *addr, __u16 vid); | |
502 | int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); | |
503 | int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, | |
504 | unsigned long off); | |
505 | int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, | |
506 | const unsigned char *addr, u16 vid); | |
507 | void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, | |
a5642ab4 | 508 | const unsigned char *addr, u16 vid, bool added_by_user); |
348662a1 JP |
509 | |
510 | int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], | |
f6f6424b | 511 | struct net_device *dev, const unsigned char *addr, u16 vid); |
348662a1 | 512 | int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, |
f6f6424b | 513 | const unsigned char *addr, u16 vid, u16 nlh_flags); |
348662a1 | 514 | int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, |
d297653d | 515 | struct net_device *dev, struct net_device *fdev, int *idx); |
8db24af7 VY |
516 | int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); |
517 | void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); | |
3aeb6617 JP |
518 | int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, |
519 | const unsigned char *addr, u16 vid); | |
520 | int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, | |
521 | const unsigned char *addr, u16 vid); | |
1da177e4 LT |
522 | |
523 | /* br_forward.c */ | |
8addd5e7 NA |
524 | enum br_pkt_type { |
525 | BR_PKT_UNICAST, | |
526 | BR_PKT_MULTICAST, | |
527 | BR_PKT_BROADCAST | |
528 | }; | |
0c4b51f0 | 529 | int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); |
b35c5f63 | 530 | void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, |
37b090e6 | 531 | bool local_rcv, bool local_orig); |
0c4b51f0 | 532 | int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); |
37b090e6 | 533 | void br_flood(struct net_bridge *br, struct sk_buff *skb, |
8addd5e7 | 534 | enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); |
1da177e4 LT |
535 | |
536 | /* br_if.c */ | |
348662a1 JP |
537 | void br_port_carrier_check(struct net_bridge_port *p); |
538 | int br_add_bridge(struct net *net, const char *name); | |
539 | int br_del_bridge(struct net *net, const char *name); | |
348662a1 JP |
540 | int br_add_if(struct net_bridge *br, struct net_device *dev); |
541 | int br_del_if(struct net_bridge *br, struct net_device *dev); | |
542 | int br_min_mtu(const struct net_bridge *br); | |
543 | netdev_features_t br_features_recompute(struct net_bridge *br, | |
544 | netdev_features_t features); | |
e028e4b8 | 545 | void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); |
2796d0c6 | 546 | void br_manage_promisc(struct net_bridge *br); |
1da177e4 LT |
547 | |
548 | /* br_input.c */ | |
0c4b51f0 | 549 | int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); |
348662a1 | 550 | rx_handler_result_t br_handle_frame(struct sk_buff **pskb); |
1da177e4 | 551 | |
859828c0 JP |
552 | static inline bool br_rx_handler_check_rcu(const struct net_device *dev) |
553 | { | |
554 | return rcu_dereference(dev->rx_handler) == br_handle_frame; | |
555 | } | |
556 | ||
557 | static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) | |
558 | { | |
559 | return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; | |
560 | } | |
561 | ||
1da177e4 | 562 | /* br_ioctl.c */ |
348662a1 JP |
563 | int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); |
564 | int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, | |
565 | void __user *arg); | |
1da177e4 | 566 | |
eb1d1641 HX |
567 | /* br_multicast.c */ |
568 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING | |
2ce297fc | 569 | extern unsigned int br_mdb_rehash_seq; |
348662a1 | 570 | int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, |
394efd19 | 571 | struct sk_buff *skb, u16 vid); |
348662a1 JP |
572 | struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, |
573 | struct sk_buff *skb, u16 vid); | |
1080ab95 | 574 | int br_multicast_add_port(struct net_bridge_port *port); |
348662a1 JP |
575 | void br_multicast_del_port(struct net_bridge_port *port); |
576 | void br_multicast_enable_port(struct net_bridge_port *port); | |
577 | void br_multicast_disable_port(struct net_bridge_port *port); | |
578 | void br_multicast_init(struct net_bridge *br); | |
579 | void br_multicast_open(struct net_bridge *br); | |
580 | void br_multicast_stop(struct net_bridge *br); | |
e10177ab | 581 | void br_multicast_dev_del(struct net_bridge *br); |
37b090e6 NA |
582 | void br_multicast_flood(struct net_bridge_mdb_entry *mdst, |
583 | struct sk_buff *skb, bool local_rcv, bool local_orig); | |
348662a1 JP |
584 | int br_multicast_set_router(struct net_bridge *br, unsigned long val); |
585 | int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); | |
586 | int br_multicast_toggle(struct net_bridge *br, unsigned long val); | |
587 | int br_multicast_set_querier(struct net_bridge *br, unsigned long val); | |
588 | int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); | |
5e923585 | 589 | int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); |
aa2ae3e7 NA |
590 | #if IS_ENABLED(CONFIG_IPV6) |
591 | int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); | |
592 | #endif | |
348662a1 JP |
593 | struct net_bridge_mdb_entry * |
594 | br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); | |
595 | struct net_bridge_mdb_entry * | |
596 | br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, | |
597 | struct br_ip *group); | |
598 | void br_multicast_free_pg(struct rcu_head *head); | |
599 | struct net_bridge_port_group * | |
600 | br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, | |
601 | struct net_bridge_port_group __rcu *next, | |
9d06b6d8 | 602 | unsigned char flags); |
348662a1 JP |
603 | void br_mdb_init(void); |
604 | void br_mdb_uninit(void); | |
45ebcce5 ER |
605 | void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, |
606 | struct br_ip *group, int type, u8 flags); | |
949f1e39 SA |
607 | void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, |
608 | int type); | |
1080ab95 | 609 | void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, |
a65056ec | 610 | const struct sk_buff *skb, u8 type, u8 dir); |
1080ab95 NA |
611 | int br_multicast_init_stats(struct net_bridge *br); |
612 | void br_multicast_get_stats(const struct net_bridge *br, | |
613 | const struct net_bridge_port *p, | |
614 | struct br_mcast_stats *dest); | |
85b35269 | 615 | |
cfd56754 CW |
616 | #define mlock_dereference(X, br) \ |
617 | rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) | |
618 | ||
85b35269 SS |
619 | static inline bool br_multicast_is_router(struct net_bridge *br) |
620 | { | |
621 | return br->multicast_router == 2 || | |
622 | (br->multicast_router == 1 && | |
623 | timer_pending(&br->multicast_router_timer)); | |
624 | } | |
b00589af | 625 | |
cc0fdd80 LL |
626 | static inline bool |
627 | __br_multicast_querier_exists(struct net_bridge *br, | |
0888d5f3 | 628 | struct bridge_mcast_other_query *querier, |
629 | const bool is_ipv6) | |
b00589af | 630 | { |
0888d5f3 | 631 | bool own_querier_enabled; |
632 | ||
633 | if (br->multicast_querier) { | |
634 | if (is_ipv6 && !br->has_ipv6_addr) | |
635 | own_querier_enabled = false; | |
636 | else | |
637 | own_querier_enabled = true; | |
638 | } else { | |
639 | own_querier_enabled = false; | |
640 | } | |
641 | ||
cc0fdd80 | 642 | return time_is_before_jiffies(querier->delay_time) && |
0888d5f3 | 643 | (own_querier_enabled || timer_pending(&querier->timer)); |
cc0fdd80 LL |
644 | } |
645 | ||
646 | static inline bool br_multicast_querier_exists(struct net_bridge *br, | |
647 | struct ethhdr *eth) | |
648 | { | |
649 | switch (eth->h_proto) { | |
650 | case (htons(ETH_P_IP)): | |
0888d5f3 | 651 | return __br_multicast_querier_exists(br, |
652 | &br->ip4_other_query, false); | |
cc0fdd80 LL |
653 | #if IS_ENABLED(CONFIG_IPV6) |
654 | case (htons(ETH_P_IPV6)): | |
0888d5f3 | 655 | return __br_multicast_querier_exists(br, |
656 | &br->ip6_other_query, true); | |
cc0fdd80 LL |
657 | #endif |
658 | default: | |
659 | return false; | |
660 | } | |
b00589af | 661 | } |
1080ab95 NA |
662 | |
663 | static inline int br_multicast_igmp_type(const struct sk_buff *skb) | |
664 | { | |
665 | return BR_INPUT_SKB_CB(skb)->igmp; | |
666 | } | |
eb1d1641 HX |
667 | #else |
668 | static inline int br_multicast_rcv(struct net_bridge *br, | |
669 | struct net_bridge_port *port, | |
06499098 VY |
670 | struct sk_buff *skb, |
671 | u16 vid) | |
eb1d1641 HX |
672 | { |
673 | return 0; | |
674 | } | |
675 | ||
676 | static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, | |
fbca58a2 | 677 | struct sk_buff *skb, u16 vid) |
eb1d1641 HX |
678 | { |
679 | return NULL; | |
680 | } | |
681 | ||
1080ab95 | 682 | static inline int br_multicast_add_port(struct net_bridge_port *port) |
eb1d1641 | 683 | { |
1080ab95 | 684 | return 0; |
eb1d1641 HX |
685 | } |
686 | ||
687 | static inline void br_multicast_del_port(struct net_bridge_port *port) | |
688 | { | |
689 | } | |
690 | ||
691 | static inline void br_multicast_enable_port(struct net_bridge_port *port) | |
692 | { | |
693 | } | |
694 | ||
695 | static inline void br_multicast_disable_port(struct net_bridge_port *port) | |
696 | { | |
697 | } | |
698 | ||
699 | static inline void br_multicast_init(struct net_bridge *br) | |
700 | { | |
701 | } | |
702 | ||
703 | static inline void br_multicast_open(struct net_bridge *br) | |
704 | { | |
705 | } | |
706 | ||
707 | static inline void br_multicast_stop(struct net_bridge *br) | |
708 | { | |
709 | } | |
5cb5e947 | 710 | |
a7ce45a7 NA |
711 | static inline void br_multicast_dev_del(struct net_bridge *br) |
712 | { | |
713 | } | |
714 | ||
37b090e6 NA |
715 | static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, |
716 | struct sk_buff *skb, | |
717 | bool local_rcv, bool local_orig) | |
5cb5e947 HX |
718 | { |
719 | } | |
720 | ||
eb1d1641 HX |
721 | static inline bool br_multicast_is_router(struct net_bridge *br) |
722 | { | |
85b35269 | 723 | return 0; |
eb1d1641 | 724 | } |
37b090e6 | 725 | |
cc0fdd80 LL |
726 | static inline bool br_multicast_querier_exists(struct net_bridge *br, |
727 | struct ethhdr *eth) | |
b00589af LL |
728 | { |
729 | return false; | |
730 | } | |
37b090e6 | 731 | |
fdb184d1 RR |
732 | static inline void br_mdb_init(void) |
733 | { | |
734 | } | |
37b090e6 | 735 | |
fdb184d1 RR |
736 | static inline void br_mdb_uninit(void) |
737 | { | |
738 | } | |
1080ab95 NA |
739 | |
740 | static inline void br_multicast_count(struct net_bridge *br, | |
741 | const struct net_bridge_port *p, | |
a65056ec NA |
742 | const struct sk_buff *skb, |
743 | u8 type, u8 dir) | |
1080ab95 NA |
744 | { |
745 | } | |
746 | ||
747 | static inline int br_multicast_init_stats(struct net_bridge *br) | |
748 | { | |
749 | return 0; | |
750 | } | |
751 | ||
752 | static inline int br_multicast_igmp_type(const struct sk_buff *skb) | |
753 | { | |
754 | return 0; | |
755 | } | |
85b35269 | 756 | #endif |
eb1d1641 | 757 | |
243a2e63 VY |
758 | /* br_vlan.c */ |
759 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
77751ee8 NA |
760 | bool br_allowed_ingress(const struct net_bridge *br, |
761 | struct net_bridge_vlan_group *vg, struct sk_buff *skb, | |
762 | u16 *vid); | |
763 | bool br_allowed_egress(struct net_bridge_vlan_group *vg, | |
348662a1 | 764 | const struct sk_buff *skb); |
e0d7968a | 765 | bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); |
348662a1 | 766 | struct sk_buff *br_handle_vlan(struct net_bridge *br, |
2594e906 | 767 | struct net_bridge_vlan_group *vg, |
348662a1 JP |
768 | struct sk_buff *skb); |
769 | int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); | |
770 | int br_vlan_delete(struct net_bridge *br, u16 vid); | |
771 | void br_vlan_flush(struct net_bridge *br); | |
2594e906 | 772 | struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); |
204177f3 | 773 | void br_recalculate_fwd_mask(struct net_bridge *br); |
a7854037 | 774 | int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
348662a1 | 775 | int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
d2d427b3 | 776 | int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); |
204177f3 | 777 | int br_vlan_set_proto(struct net_bridge *br, unsigned long val); |
6dada9b1 | 778 | int br_vlan_set_stats(struct net_bridge *br, unsigned long val); |
5be5a2df | 779 | int br_vlan_init(struct net_bridge *br); |
96a20d9d | 780 | int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); |
0f963b75 | 781 | int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid); |
348662a1 JP |
782 | int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); |
783 | int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); | |
784 | void nbp_vlan_flush(struct net_bridge_port *port); | |
5be5a2df | 785 | int nbp_vlan_init(struct net_bridge_port *port); |
2594e906 | 786 | int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); |
a60c0903 NA |
787 | void br_vlan_get_stats(const struct net_bridge_vlan *v, |
788 | struct br_vlan_stats *stats); | |
a37b85c9 | 789 | |
2594e906 NA |
790 | static inline struct net_bridge_vlan_group *br_vlan_group( |
791 | const struct net_bridge *br) | |
a37b85c9 | 792 | { |
907b1e6e | 793 | return rtnl_dereference(br->vlgrp); |
a37b85c9 VY |
794 | } |
795 | ||
2594e906 NA |
796 | static inline struct net_bridge_vlan_group *nbp_vlan_group( |
797 | const struct net_bridge_port *p) | |
a37b85c9 | 798 | { |
907b1e6e NA |
799 | return rtnl_dereference(p->vlgrp); |
800 | } | |
801 | ||
802 | static inline struct net_bridge_vlan_group *br_vlan_group_rcu( | |
803 | const struct net_bridge *br) | |
804 | { | |
805 | return rcu_dereference(br->vlgrp); | |
806 | } | |
807 | ||
808 | static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( | |
809 | const struct net_bridge_port *p) | |
810 | { | |
811 | return rcu_dereference(p->vlgrp); | |
a37b85c9 VY |
812 | } |
813 | ||
814 | /* Since bridge now depends on 8021Q module, but the time bridge sees the | |
815 | * skb, the vlan tag will always be present if the frame was tagged. | |
816 | */ | |
817 | static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) | |
818 | { | |
819 | int err = 0; | |
820 | ||
2594e906 | 821 | if (skb_vlan_tag_present(skb)) { |
df8a39de | 822 | *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; |
2594e906 | 823 | } else { |
a37b85c9 VY |
824 | *vid = 0; |
825 | err = -EINVAL; | |
826 | } | |
827 | ||
828 | return err; | |
829 | } | |
78851988 | 830 | |
77751ee8 | 831 | static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) |
2594e906 | 832 | { |
77751ee8 | 833 | if (!vg) |
2594e906 NA |
834 | return 0; |
835 | ||
836 | smp_rmb(); | |
77751ee8 | 837 | return vg->pvid; |
78851988 VY |
838 | } |
839 | ||
2796d0c6 VY |
840 | static inline int br_vlan_enabled(struct net_bridge *br) |
841 | { | |
842 | return br->vlan_enabled; | |
843 | } | |
243a2e63 | 844 | #else |
77751ee8 NA |
845 | static inline bool br_allowed_ingress(const struct net_bridge *br, |
846 | struct net_bridge_vlan_group *vg, | |
78851988 VY |
847 | struct sk_buff *skb, |
848 | u16 *vid) | |
a37b85c9 VY |
849 | { |
850 | return true; | |
851 | } | |
852 | ||
2594e906 | 853 | static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, |
85f46c6b VY |
854 | const struct sk_buff *skb) |
855 | { | |
856 | return true; | |
857 | } | |
858 | ||
e0d7968a TM |
859 | static inline bool br_should_learn(struct net_bridge_port *p, |
860 | struct sk_buff *skb, u16 *vid) | |
861 | { | |
862 | return true; | |
863 | } | |
864 | ||
78851988 | 865 | static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, |
2594e906 | 866 | struct net_bridge_vlan_group *vg, |
78851988 VY |
867 | struct sk_buff *skb) |
868 | { | |
869 | return skb; | |
870 | } | |
871 | ||
552406c4 | 872 | static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) |
243a2e63 VY |
873 | { |
874 | return -EOPNOTSUPP; | |
875 | } | |
876 | ||
877 | static inline int br_vlan_delete(struct net_bridge *br, u16 vid) | |
878 | { | |
879 | return -EOPNOTSUPP; | |
880 | } | |
881 | ||
882 | static inline void br_vlan_flush(struct net_bridge *br) | |
883 | { | |
884 | } | |
885 | ||
204177f3 TM |
886 | static inline void br_recalculate_fwd_mask(struct net_bridge *br) |
887 | { | |
888 | } | |
889 | ||
5be5a2df | 890 | static inline int br_vlan_init(struct net_bridge *br) |
8580e211 | 891 | { |
5be5a2df | 892 | return 0; |
8580e211 TM |
893 | } |
894 | ||
552406c4 | 895 | static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) |
243a2e63 VY |
896 | { |
897 | return -EOPNOTSUPP; | |
898 | } | |
899 | ||
900 | static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) | |
901 | { | |
902 | return -EOPNOTSUPP; | |
903 | } | |
904 | ||
905 | static inline void nbp_vlan_flush(struct net_bridge_port *port) | |
906 | { | |
907 | } | |
908 | ||
2594e906 NA |
909 | static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, |
910 | u16 vid) | |
a37b85c9 VY |
911 | { |
912 | return NULL; | |
913 | } | |
914 | ||
2594e906 | 915 | static inline int nbp_vlan_init(struct net_bridge_port *port) |
bc9a25d2 | 916 | { |
2594e906 | 917 | return 0; |
bc9a25d2 VY |
918 | } |
919 | ||
2594e906 | 920 | static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) |
5be5a2df VY |
921 | { |
922 | return 0; | |
923 | } | |
924 | ||
77751ee8 | 925 | static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) |
78851988 | 926 | { |
3df6bf45 | 927 | return 0; |
78851988 | 928 | } |
2796d0c6 | 929 | |
d4f0e095 | 930 | static inline int br_vlan_enabled(struct net_bridge *br) |
2796d0c6 VY |
931 | { |
932 | return 0; | |
933 | } | |
a7854037 NA |
934 | |
935 | static inline int __br_vlan_filter_toggle(struct net_bridge *br, | |
936 | unsigned long val) | |
937 | { | |
938 | return -EOPNOTSUPP; | |
939 | } | |
2594e906 NA |
940 | |
941 | static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, | |
942 | u32 filter_mask) | |
943 | { | |
944 | return 0; | |
945 | } | |
946 | ||
947 | static inline struct net_bridge_vlan_group *br_vlan_group( | |
948 | const struct net_bridge *br) | |
949 | { | |
950 | return NULL; | |
951 | } | |
952 | ||
953 | static inline struct net_bridge_vlan_group *nbp_vlan_group( | |
954 | const struct net_bridge_port *p) | |
955 | { | |
956 | return NULL; | |
957 | } | |
907b1e6e NA |
958 | |
959 | static inline struct net_bridge_vlan_group *br_vlan_group_rcu( | |
960 | const struct net_bridge *br) | |
961 | { | |
962 | return NULL; | |
963 | } | |
964 | ||
965 | static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( | |
966 | const struct net_bridge_port *p) | |
967 | { | |
968 | return NULL; | |
969 | } | |
a60c0903 NA |
970 | |
971 | static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, | |
972 | struct br_vlan_stats *stats) | |
973 | { | |
974 | } | |
243a2e63 VY |
975 | #endif |
976 | ||
1a4ba64d PNA |
977 | struct nf_br_ops { |
978 | int (*br_dev_xmit_hook)(struct sk_buff *skb); | |
979 | }; | |
980 | extern const struct nf_br_ops __rcu *nf_br_ops; | |
981 | ||
1da177e4 | 982 | /* br_netfilter.c */ |
34666d46 PNA |
983 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
984 | int br_nf_core_init(void); | |
985 | void br_nf_core_fini(void); | |
348662a1 | 986 | void br_netfilter_rtable_init(struct net_bridge *); |
c0909713 | 987 | #else |
34666d46 PNA |
988 | static inline int br_nf_core_init(void) { return 0; } |
989 | static inline void br_nf_core_fini(void) {} | |
4adf0af6 | 990 | #define br_netfilter_rtable_init(x) |
c0909713 | 991 | #endif |
1da177e4 LT |
992 | |
993 | /* br_stp.c */ | |
775dd692 | 994 | void br_set_state(struct net_bridge_port *p, unsigned int state); |
348662a1 JP |
995 | struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); |
996 | void br_init_port(struct net_bridge_port *p); | |
997 | void br_become_designated_port(struct net_bridge_port *p); | |
1da177e4 | 998 | |
348662a1 JP |
999 | void __br_set_forward_delay(struct net_bridge *br, unsigned long t); |
1000 | int br_set_forward_delay(struct net_bridge *br, unsigned long x); | |
1001 | int br_set_hello_time(struct net_bridge *br, unsigned long x); | |
1002 | int br_set_max_age(struct net_bridge *br, unsigned long x); | |
82dd4332 | 1003 | int __set_ageing_time(struct net_device *dev, unsigned long t); |
9e0b27fe | 1004 | int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); |
14f98f25 | 1005 | |
1006 | ||
1da177e4 | 1007 | /* br_stp_if.c */ |
348662a1 JP |
1008 | void br_stp_enable_bridge(struct net_bridge *br); |
1009 | void br_stp_disable_bridge(struct net_bridge *br); | |
1010 | void br_stp_set_enabled(struct net_bridge *br, unsigned long val); | |
1011 | void br_stp_enable_port(struct net_bridge_port *p); | |
1012 | void br_stp_disable_port(struct net_bridge_port *p); | |
1013 | bool br_stp_recalculate_bridge_id(struct net_bridge *br); | |
1014 | void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); | |
1015 | void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); | |
1016 | int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); | |
1017 | int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); | |
1018 | ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); | |
1da177e4 LT |
1019 | |
1020 | /* br_stp_bpdu.c */ | |
7c85fbf0 | 1021 | struct stp_proto; |
348662a1 JP |
1022 | void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, |
1023 | struct net_device *dev); | |
1da177e4 LT |
1024 | |
1025 | /* br_stp_timer.c */ | |
348662a1 JP |
1026 | void br_stp_timer_init(struct net_bridge *br); |
1027 | void br_stp_port_timer_init(struct net_bridge_port *p); | |
1028 | unsigned long br_timer_value(const struct timer_list *timer); | |
1da177e4 LT |
1029 | |
1030 | /* br.c */ | |
e6373c4c | 1031 | #if IS_ENABLED(CONFIG_ATM_LANE) |
da678292 MM |
1032 | extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); |
1033 | #endif | |
1da177e4 | 1034 | |
11dc1f36 | 1035 | /* br_netlink.c */ |
149ddd83 | 1036 | extern struct rtnl_link_ops br_link_ops; |
348662a1 JP |
1037 | int br_netlink_init(void); |
1038 | void br_netlink_fini(void); | |
1039 | void br_ifinfo_notify(int event, struct net_bridge_port *port); | |
add511b3 RP |
1040 | int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); |
1041 | int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); | |
348662a1 | 1042 | int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, |
46c264da | 1043 | u32 filter_mask, int nlflags); |
11dc1f36 | 1044 | |
1da177e4 LT |
1045 | #ifdef CONFIG_SYSFS |
1046 | /* br_sysfs_if.c */ | |
52cf25d0 | 1047 | extern const struct sysfs_ops brport_sysfs_ops; |
348662a1 JP |
1048 | int br_sysfs_addif(struct net_bridge_port *p); |
1049 | int br_sysfs_renameif(struct net_bridge_port *p); | |
1da177e4 LT |
1050 | |
1051 | /* br_sysfs_br.c */ | |
348662a1 JP |
1052 | int br_sysfs_addbr(struct net_device *dev); |
1053 | void br_sysfs_delbr(struct net_device *dev); | |
1da177e4 LT |
1054 | |
1055 | #else | |
1056 | ||
0cb2bbbe LJ |
1057 | static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } |
1058 | static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } | |
1059 | static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } | |
1060 | static inline void br_sysfs_delbr(struct net_device *dev) { return; } | |
1da177e4 LT |
1061 | #endif /* CONFIG_SYSFS */ |
1062 | ||
6bc506b4 IS |
1063 | /* br_switchdev.c */ |
1064 | #ifdef CONFIG_NET_SWITCHDEV | |
1065 | int nbp_switchdev_mark_set(struct net_bridge_port *p); | |
1066 | void nbp_switchdev_frame_mark(const struct net_bridge_port *p, | |
1067 | struct sk_buff *skb); | |
1068 | bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, | |
1069 | const struct sk_buff *skb); | |
1070 | #else | |
1071 | static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) | |
1072 | { | |
1073 | return 0; | |
1074 | } | |
1075 | ||
1076 | static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, | |
1077 | struct sk_buff *skb) | |
1078 | { | |
1079 | } | |
1080 | ||
1081 | static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, | |
1082 | const struct sk_buff *skb) | |
1083 | { | |
1084 | return true; | |
1085 | } | |
1086 | #endif /* CONFIG_NET_SWITCHDEV */ | |
1087 | ||
1da177e4 | 1088 | #endif |