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 | ||
efa5356b RP |
94 | struct br_tunnel_info { |
95 | __be64 tunnel_id; | |
96 | struct metadata_dst *tunnel_dst; | |
97 | }; | |
98 | ||
2594e906 NA |
99 | /** |
100 | * struct net_bridge_vlan - per-vlan entry | |
101 | * | |
102 | * @vnode: rhashtable member | |
103 | * @vid: VLAN id | |
104 | * @flags: bridge vlan flags | |
6dada9b1 | 105 | * @stats: per-cpu VLAN statistics |
2594e906 NA |
106 | * @br: if MASTER flag set, this points to a bridge struct |
107 | * @port: if MASTER flag unset, this points to a port struct | |
108 | * @refcnt: if MASTER flag set, this is bumped for each port referencing it | |
109 | * @brvlan: if MASTER flag unset, this points to the global per-VLAN context | |
110 | * for this VLAN entry | |
111 | * @vlist: sorted list of VLAN entries | |
112 | * @rcu: used for entry destruction | |
113 | * | |
114 | * This structure is shared between the global per-VLAN entries contained in | |
115 | * the bridge rhashtable and the local per-port per-VLAN entries contained in | |
116 | * the port's rhashtable. The union entries should be interpreted depending on | |
117 | * the entry flags that are set. | |
118 | */ | |
119 | struct net_bridge_vlan { | |
120 | struct rhash_head vnode; | |
efa5356b | 121 | struct rhash_head tnode; |
2594e906 NA |
122 | u16 vid; |
123 | u16 flags; | |
6dada9b1 | 124 | struct br_vlan_stats __percpu *stats; |
243a2e63 | 125 | union { |
2594e906 NA |
126 | struct net_bridge *br; |
127 | struct net_bridge_port *port; | |
128 | }; | |
129 | union { | |
130 | atomic_t refcnt; | |
131 | struct net_bridge_vlan *brvlan; | |
132 | }; | |
efa5356b RP |
133 | |
134 | struct br_tunnel_info tinfo; | |
135 | ||
2594e906 NA |
136 | struct list_head vlist; |
137 | ||
243a2e63 | 138 | struct rcu_head rcu; |
2594e906 NA |
139 | }; |
140 | ||
141 | /** | |
142 | * struct net_bridge_vlan_group | |
143 | * | |
144 | * @vlan_hash: VLAN entry rhashtable | |
145 | * @vlan_list: sorted VLAN entry list | |
146 | * @num_vlans: number of total VLAN entries | |
77751ee8 | 147 | * @pvid: PVID VLAN id |
2594e906 NA |
148 | * |
149 | * IMPORTANT: Be careful when checking if there're VLAN entries using list | |
150 | * primitives because the bridge can have entries in its list which | |
151 | * are just for global context but not for filtering, i.e. they have | |
152 | * the master flag set but not the brentry flag. If you have to check | |
153 | * if there're "real" entries in the bridge please test @num_vlans | |
154 | */ | |
155 | struct net_bridge_vlan_group { | |
156 | struct rhashtable vlan_hash; | |
efa5356b | 157 | struct rhashtable tunnel_hash; |
2594e906 | 158 | struct list_head vlan_list; |
6cbdceeb | 159 | u16 num_vlans; |
77751ee8 | 160 | u16 pvid; |
243a2e63 VY |
161 | }; |
162 | ||
1da177e4 LT |
163 | struct net_bridge_fdb_entry |
164 | { | |
165 | struct hlist_node hlist; | |
166 | struct net_bridge_port *dst; | |
167 | ||
7cd8861a | 168 | unsigned long updated; |
169 | unsigned long used; | |
1da177e4 | 170 | mac_addr addr; |
b22fbf22 | 171 | __u16 vlan_id; |
93859b13 JP |
172 | unsigned char is_local:1, |
173 | is_static:1, | |
cf6b8e1e SF |
174 | added_by_user:1, |
175 | added_by_external_learn:1; | |
b22fbf22 | 176 | struct rcu_head rcu; |
1da177e4 LT |
177 | }; |
178 | ||
9d06b6d8 ER |
179 | #define MDB_PG_FLAGS_PERMANENT BIT(0) |
180 | #define MDB_PG_FLAGS_OFFLOAD BIT(1) | |
181 | ||
eb1d1641 HX |
182 | struct net_bridge_port_group { |
183 | struct net_bridge_port *port; | |
e8051688 | 184 | struct net_bridge_port_group __rcu *next; |
eb1d1641 HX |
185 | struct hlist_node mglist; |
186 | struct rcu_head rcu; | |
187 | struct timer_list timer; | |
8ef2a9a5 | 188 | struct br_ip addr; |
9d06b6d8 | 189 | unsigned char flags; |
6db6f0ea | 190 | unsigned char eth_addr[ETH_ALEN]; |
eb1d1641 HX |
191 | }; |
192 | ||
193 | struct net_bridge_mdb_entry | |
194 | { | |
195 | struct hlist_node hlist[2]; | |
eb1d1641 | 196 | struct net_bridge *br; |
e8051688 | 197 | struct net_bridge_port_group __rcu *ports; |
eb1d1641 HX |
198 | struct rcu_head rcu; |
199 | struct timer_list timer; | |
8ef2a9a5 | 200 | struct br_ip addr; |
8a870178 | 201 | bool mglist; |
eb1d1641 HX |
202 | }; |
203 | ||
204 | struct net_bridge_mdb_htable | |
205 | { | |
206 | struct hlist_head *mhash; | |
207 | struct rcu_head rcu; | |
208 | struct net_bridge_mdb_htable *old; | |
209 | u32 size; | |
210 | u32 max; | |
211 | u32 secret; | |
212 | u32 ver; | |
213 | }; | |
214 | ||
1f90c7f3 | 215 | struct net_bridge_port { |
1da177e4 LT |
216 | struct net_bridge *br; |
217 | struct net_device *dev; | |
218 | struct list_head list; | |
219 | ||
1f90c7f3 NA |
220 | unsigned long flags; |
221 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
222 | struct net_bridge_vlan_group __rcu *vlgrp; | |
223 | #endif | |
224 | ||
1da177e4 LT |
225 | /* STP */ |
226 | u8 priority; | |
227 | u8 state; | |
228 | u16 port_no; | |
229 | unsigned char topology_change_ack; | |
230 | unsigned char config_pending; | |
231 | port_id port_id; | |
232 | port_id designated_port; | |
233 | bridge_id designated_root; | |
234 | bridge_id designated_bridge; | |
235 | u32 path_cost; | |
236 | u32 designated_cost; | |
0c03150e | 237 | unsigned long designated_age; |
1da177e4 LT |
238 | |
239 | struct timer_list forward_delay_timer; | |
240 | struct timer_list hold_timer; | |
241 | struct timer_list message_age_timer; | |
242 | struct kobject kobj; | |
243 | struct rcu_head rcu; | |
3982d3d2 | 244 | |
eb1d1641 | 245 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
90010b36 | 246 | struct bridge_mcast_own_query ip4_own_query; |
cc0fdd80 | 247 | #if IS_ENABLED(CONFIG_IPV6) |
90010b36 | 248 | struct bridge_mcast_own_query ip6_own_query; |
cc0fdd80 | 249 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
eb1d1641 | 250 | unsigned char multicast_router; |
1080ab95 | 251 | struct bridge_mcast_stats __percpu *mcast_stats; |
eb1d1641 | 252 | struct timer_list multicast_router_timer; |
eb1d1641 HX |
253 | struct hlist_head mglist; |
254 | struct hlist_node rlist; | |
255 | #endif | |
e0f43752 SA |
256 | |
257 | #ifdef CONFIG_SYSFS | |
258 | char sysfs_name[IFNAMSIZ]; | |
259 | #endif | |
91d2c34a HX |
260 | |
261 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
262 | struct netpoll *np; | |
263 | #endif | |
6bc506b4 IS |
264 | #ifdef CONFIG_NET_SWITCHDEV |
265 | int offload_fwd_mark; | |
266 | #endif | |
1da177e4 LT |
267 | }; |
268 | ||
e028e4b8 | 269 | #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) |
f3a6ddf1 | 270 | #define br_promisc_port(p) ((p)->flags & BR_PROMISC) |
e028e4b8 | 271 | |
f350a0a8 JP |
272 | #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) |
273 | ||
b5ed54e9 | 274 | static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) |
275 | { | |
716ec052 | 276 | return rcu_dereference(dev->rx_handler_data); |
b5ed54e9 | 277 | } |
278 | ||
1fb1754a | 279 | static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) |
b5ed54e9 | 280 | { |
ec1e5610 ED |
281 | return br_port_exists(dev) ? |
282 | rtnl_dereference(dev->rx_handler_data) : NULL; | |
b5ed54e9 | 283 | } |
284 | ||
1f90c7f3 | 285 | struct net_bridge { |
1da177e4 | 286 | spinlock_t lock; |
1f90c7f3 | 287 | spinlock_t hash_lock; |
1da177e4 LT |
288 | struct list_head port_list; |
289 | struct net_device *dev; | |
8f84985f | 290 | struct pcpu_sw_netstats __percpu *stats; |
1f90c7f3 NA |
291 | /* These fields are accessed on each packet */ |
292 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
293 | u8 vlan_enabled; | |
294 | u8 vlan_stats_enabled; | |
295 | __be16 vlan_proto; | |
296 | u16 default_pvid; | |
297 | struct net_bridge_vlan_group __rcu *vlgrp; | |
298 | #endif | |
299 | ||
1da177e4 | 300 | struct hlist_head hash[BR_HASH_SIZE]; |
34666d46 | 301 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
efb6de9b BT |
302 | union { |
303 | struct rtable fake_rtable; | |
304 | struct rt6_info fake_rt6_info; | |
305 | }; | |
4df53d8b PM |
306 | bool nf_call_iptables; |
307 | bool nf_call_ip6tables; | |
308 | bool nf_call_arptables; | |
4adf0af6 | 309 | #endif |
515853cc | 310 | u16 group_fwd_mask; |
f2808d22 | 311 | u16 group_fwd_mask_required; |
515853cc | 312 | |
1da177e4 LT |
313 | /* STP */ |
314 | bridge_id designated_root; | |
315 | bridge_id bridge_id; | |
316 | u32 root_path_cost; | |
1f90c7f3 NA |
317 | unsigned char topology_change; |
318 | unsigned char topology_change_detected; | |
319 | u16 root_port; | |
1da177e4 LT |
320 | unsigned long max_age; |
321 | unsigned long hello_time; | |
322 | unsigned long forward_delay; | |
1da177e4 | 323 | unsigned long ageing_time; |
34d8acd8 | 324 | unsigned long bridge_max_age; |
1da177e4 LT |
325 | unsigned long bridge_hello_time; |
326 | unsigned long bridge_forward_delay; | |
34d8acd8 | 327 | unsigned long bridge_ageing_time; |
1da177e4 | 328 | |
fda93d92 | 329 | u8 group_addr[ETH_ALEN]; |
204177f3 | 330 | bool group_addr_set; |
9cde0708 SH |
331 | |
332 | enum { | |
333 | BR_NO_STP, /* no spanning tree */ | |
334 | BR_KERNEL_STP, /* old STP in kernel */ | |
335 | BR_USER_STP, /* new RSTP in userspace */ | |
336 | } stp_enabled; | |
337 | ||
eb1d1641 HX |
338 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
339 | unsigned char multicast_router; | |
340 | ||
341 | u8 multicast_disabled:1; | |
c5c23260 | 342 | u8 multicast_querier:1; |
1c8ad5bf | 343 | u8 multicast_query_use_ifaddr:1; |
0888d5f3 | 344 | u8 has_ipv6_addr:1; |
1080ab95 | 345 | u8 multicast_stats_enabled:1; |
eb1d1641 HX |
346 | |
347 | u32 hash_elasticity; | |
348 | u32 hash_max; | |
349 | ||
350 | u32 multicast_last_member_count; | |
eb1d1641 HX |
351 | u32 multicast_startup_query_count; |
352 | ||
5e923585 NA |
353 | u8 multicast_igmp_version; |
354 | ||
eb1d1641 HX |
355 | unsigned long multicast_last_member_interval; |
356 | unsigned long multicast_membership_interval; | |
357 | unsigned long multicast_querier_interval; | |
358 | unsigned long multicast_query_interval; | |
359 | unsigned long multicast_query_response_interval; | |
360 | unsigned long multicast_startup_query_interval; | |
361 | ||
362 | spinlock_t multicast_lock; | |
e8051688 | 363 | struct net_bridge_mdb_htable __rcu *mdb; |
eb1d1641 | 364 | struct hlist_head router_list; |
eb1d1641 HX |
365 | |
366 | struct timer_list multicast_router_timer; | |
90010b36 LL |
367 | struct bridge_mcast_other_query ip4_other_query; |
368 | struct bridge_mcast_own_query ip4_own_query; | |
dc4eb53a | 369 | struct bridge_mcast_querier ip4_querier; |
1080ab95 | 370 | struct bridge_mcast_stats __percpu *mcast_stats; |
cc0fdd80 | 371 | #if IS_ENABLED(CONFIG_IPV6) |
90010b36 LL |
372 | struct bridge_mcast_other_query ip6_other_query; |
373 | struct bridge_mcast_own_query ip6_own_query; | |
dc4eb53a | 374 | struct bridge_mcast_querier ip6_querier; |
aa2ae3e7 | 375 | u8 multicast_mld_version; |
cc0fdd80 | 376 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
eb1d1641 HX |
377 | #endif |
378 | ||
1da177e4 LT |
379 | struct timer_list hello_timer; |
380 | struct timer_list tcn_timer; | |
381 | struct timer_list topology_change_timer; | |
f7cdee8a | 382 | struct delayed_work gc_work; |
43b98c4a | 383 | struct kobject *ifobj; |
e028e4b8 | 384 | u32 auto_cnt; |
6bc506b4 IS |
385 | |
386 | #ifdef CONFIG_NET_SWITCHDEV | |
387 | int offload_fwd_mark; | |
388 | #endif | |
1da177e4 LT |
389 | }; |
390 | ||
68b7c895 HX |
391 | struct br_input_skb_cb { |
392 | struct net_device *brdev; | |
93fdd47e | 393 | |
32dec5dd | 394 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
eb1d1641 HX |
395 | int igmp; |
396 | int mrouters_only; | |
32dec5dd | 397 | #endif |
93fdd47e | 398 | |
842a9ae0 | 399 | bool proxyarp_replied; |
93fdd47e | 400 | |
20adfa1a VY |
401 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
402 | bool vlan_filtered; | |
403 | #endif | |
6bc506b4 IS |
404 | |
405 | #ifdef CONFIG_NET_SWITCHDEV | |
406 | int offload_fwd_mark; | |
407 | #endif | |
68b7c895 HX |
408 | }; |
409 | ||
410 | #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) | |
411 | ||
32dec5dd YH |
412 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
413 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) | |
414 | #else | |
415 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) | |
416 | #endif | |
417 | ||
28a16c97 | 418 | #define br_printk(level, br, format, args...) \ |
419 | printk(level "%s: " format, (br)->dev->name, ##args) | |
420 | ||
421 | #define br_err(__br, format, args...) \ | |
422 | br_printk(KERN_ERR, __br, format, ##args) | |
423 | #define br_warn(__br, format, args...) \ | |
424 | br_printk(KERN_WARNING, __br, format, ##args) | |
425 | #define br_notice(__br, format, args...) \ | |
426 | br_printk(KERN_NOTICE, __br, format, ##args) | |
427 | #define br_info(__br, format, args...) \ | |
428 | br_printk(KERN_INFO, __br, format, ##args) | |
429 | ||
430 | #define br_debug(br, format, args...) \ | |
431 | pr_debug("%s: " format, (br)->dev->name, ##args) | |
432 | ||
1da177e4 LT |
433 | /* called under bridge lock */ |
434 | static inline int br_is_root_bridge(const struct net_bridge *br) | |
435 | { | |
436 | return !memcmp(&br->bridge_id, &br->designated_root, 8); | |
437 | } | |
438 | ||
2594e906 NA |
439 | /* check if a VLAN entry is global */ |
440 | static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) | |
441 | { | |
442 | return v->flags & BRIDGE_VLAN_INFO_MASTER; | |
443 | } | |
444 | ||
445 | /* check if a VLAN entry is used by the bridge */ | |
446 | static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) | |
447 | { | |
448 | return v->flags & BRIDGE_VLAN_INFO_BRENTRY; | |
449 | } | |
450 | ||
6be144f6 | 451 | /* check if we should use the vlan entry, returns false if it's only context */ |
2594e906 NA |
452 | static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) |
453 | { | |
454 | if (br_vlan_is_master(v)) { | |
455 | if (br_vlan_is_brentry(v)) | |
456 | return true; | |
457 | else | |
458 | return false; | |
459 | } | |
460 | ||
461 | return true; | |
462 | } | |
463 | ||
1da177e4 | 464 | /* br_device.c */ |
348662a1 JP |
465 | void br_dev_setup(struct net_device *dev); |
466 | void br_dev_delete(struct net_device *dev, struct list_head *list); | |
467 | netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); | |
cfb478da | 468 | #ifdef CONFIG_NET_POLL_CONTROLLER |
91d2c34a HX |
469 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
470 | struct sk_buff *skb) | |
471 | { | |
472 | struct netpoll *np = p->np; | |
473 | ||
474 | if (np) | |
475 | netpoll_send_skb(np, skb); | |
476 | } | |
477 | ||
a8779ec1 | 478 | int br_netpoll_enable(struct net_bridge_port *p); |
348662a1 | 479 | void br_netpoll_disable(struct net_bridge_port *p); |
cfb478da | 480 | #else |
9f70b0fc | 481 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
91d2c34a HX |
482 | struct sk_buff *skb) |
483 | { | |
484 | } | |
cfb478da | 485 | |
a8779ec1 | 486 | static inline int br_netpoll_enable(struct net_bridge_port *p) |
91d2c34a HX |
487 | { |
488 | return 0; | |
489 | } | |
490 | ||
491 | static inline void br_netpoll_disable(struct net_bridge_port *p) | |
492 | { | |
493 | } | |
cfb478da | 494 | #endif |
1da177e4 LT |
495 | |
496 | /* br_fdb.c */ | |
348662a1 JP |
497 | int br_fdb_init(void); |
498 | void br_fdb_fini(void); | |
499 | void br_fdb_flush(struct net_bridge *br); | |
424bb9c9 TM |
500 | void br_fdb_find_delete_local(struct net_bridge *br, |
501 | const struct net_bridge_port *p, | |
502 | const unsigned char *addr, u16 vid); | |
348662a1 JP |
503 | void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); |
504 | void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); | |
f7cdee8a | 505 | void br_fdb_cleanup(struct work_struct *work); |
348662a1 | 506 | void br_fdb_delete_by_port(struct net_bridge *br, |
1ea2d020 | 507 | const struct net_bridge_port *p, u16 vid, int do_all); |
348662a1 JP |
508 | struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, |
509 | const unsigned char *addr, __u16 vid); | |
510 | int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); | |
511 | int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, | |
512 | unsigned long off); | |
513 | int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, | |
514 | const unsigned char *addr, u16 vid); | |
515 | void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, | |
a5642ab4 | 516 | const unsigned char *addr, u16 vid, bool added_by_user); |
348662a1 JP |
517 | |
518 | int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], | |
f6f6424b | 519 | struct net_device *dev, const unsigned char *addr, u16 vid); |
348662a1 | 520 | int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, |
f6f6424b | 521 | const unsigned char *addr, u16 vid, u16 nlh_flags); |
348662a1 | 522 | int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, |
d297653d | 523 | struct net_device *dev, struct net_device *fdev, int *idx); |
8db24af7 VY |
524 | int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); |
525 | void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); | |
3aeb6617 JP |
526 | int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, |
527 | const unsigned char *addr, u16 vid); | |
528 | int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, | |
529 | const unsigned char *addr, u16 vid); | |
1da177e4 LT |
530 | |
531 | /* br_forward.c */ | |
8addd5e7 NA |
532 | enum br_pkt_type { |
533 | BR_PKT_UNICAST, | |
534 | BR_PKT_MULTICAST, | |
535 | BR_PKT_BROADCAST | |
536 | }; | |
0c4b51f0 | 537 | int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); |
b35c5f63 | 538 | void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, |
37b090e6 | 539 | bool local_rcv, bool local_orig); |
0c4b51f0 | 540 | int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); |
37b090e6 | 541 | void br_flood(struct net_bridge *br, struct sk_buff *skb, |
8addd5e7 | 542 | enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); |
1da177e4 LT |
543 | |
544 | /* br_if.c */ | |
348662a1 JP |
545 | void br_port_carrier_check(struct net_bridge_port *p); |
546 | int br_add_bridge(struct net *net, const char *name); | |
547 | int br_del_bridge(struct net *net, const char *name); | |
348662a1 JP |
548 | int br_add_if(struct net_bridge *br, struct net_device *dev); |
549 | int br_del_if(struct net_bridge *br, struct net_device *dev); | |
550 | int br_min_mtu(const struct net_bridge *br); | |
551 | netdev_features_t br_features_recompute(struct net_bridge *br, | |
552 | netdev_features_t features); | |
e028e4b8 | 553 | void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); |
2796d0c6 | 554 | void br_manage_promisc(struct net_bridge *br); |
1da177e4 LT |
555 | |
556 | /* br_input.c */ | |
0c4b51f0 | 557 | int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); |
348662a1 | 558 | rx_handler_result_t br_handle_frame(struct sk_buff **pskb); |
1da177e4 | 559 | |
859828c0 JP |
560 | static inline bool br_rx_handler_check_rcu(const struct net_device *dev) |
561 | { | |
562 | return rcu_dereference(dev->rx_handler) == br_handle_frame; | |
563 | } | |
564 | ||
565 | static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) | |
566 | { | |
567 | return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; | |
568 | } | |
569 | ||
1da177e4 | 570 | /* br_ioctl.c */ |
348662a1 JP |
571 | int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); |
572 | int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, | |
573 | void __user *arg); | |
1da177e4 | 574 | |
eb1d1641 HX |
575 | /* br_multicast.c */ |
576 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING | |
2ce297fc | 577 | extern unsigned int br_mdb_rehash_seq; |
348662a1 | 578 | int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, |
394efd19 | 579 | struct sk_buff *skb, u16 vid); |
348662a1 JP |
580 | struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, |
581 | struct sk_buff *skb, u16 vid); | |
1080ab95 | 582 | int br_multicast_add_port(struct net_bridge_port *port); |
348662a1 JP |
583 | void br_multicast_del_port(struct net_bridge_port *port); |
584 | void br_multicast_enable_port(struct net_bridge_port *port); | |
585 | void br_multicast_disable_port(struct net_bridge_port *port); | |
586 | void br_multicast_init(struct net_bridge *br); | |
587 | void br_multicast_open(struct net_bridge *br); | |
588 | void br_multicast_stop(struct net_bridge *br); | |
e10177ab | 589 | void br_multicast_dev_del(struct net_bridge *br); |
37b090e6 NA |
590 | void br_multicast_flood(struct net_bridge_mdb_entry *mdst, |
591 | struct sk_buff *skb, bool local_rcv, bool local_orig); | |
348662a1 JP |
592 | int br_multicast_set_router(struct net_bridge *br, unsigned long val); |
593 | int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); | |
594 | int br_multicast_toggle(struct net_bridge *br, unsigned long val); | |
595 | int br_multicast_set_querier(struct net_bridge *br, unsigned long val); | |
596 | int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); | |
5e923585 | 597 | int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); |
aa2ae3e7 NA |
598 | #if IS_ENABLED(CONFIG_IPV6) |
599 | int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); | |
600 | #endif | |
348662a1 JP |
601 | struct net_bridge_mdb_entry * |
602 | br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); | |
603 | struct net_bridge_mdb_entry * | |
604 | br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, | |
605 | struct br_ip *group); | |
606 | void br_multicast_free_pg(struct rcu_head *head); | |
607 | struct net_bridge_port_group * | |
608 | br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, | |
609 | struct net_bridge_port_group __rcu *next, | |
6db6f0ea | 610 | unsigned char flags, const unsigned char *src); |
348662a1 JP |
611 | void br_mdb_init(void); |
612 | void br_mdb_uninit(void); | |
45ebcce5 ER |
613 | void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, |
614 | struct br_ip *group, int type, u8 flags); | |
949f1e39 SA |
615 | void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, |
616 | int type); | |
1080ab95 | 617 | void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, |
a65056ec | 618 | const struct sk_buff *skb, u8 type, u8 dir); |
1080ab95 NA |
619 | int br_multicast_init_stats(struct net_bridge *br); |
620 | void br_multicast_get_stats(const struct net_bridge *br, | |
621 | const struct net_bridge_port *p, | |
622 | struct br_mcast_stats *dest); | |
85b35269 | 623 | |
cfd56754 CW |
624 | #define mlock_dereference(X, br) \ |
625 | rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) | |
626 | ||
85b35269 SS |
627 | static inline bool br_multicast_is_router(struct net_bridge *br) |
628 | { | |
629 | return br->multicast_router == 2 || | |
630 | (br->multicast_router == 1 && | |
631 | timer_pending(&br->multicast_router_timer)); | |
632 | } | |
b00589af | 633 | |
cc0fdd80 LL |
634 | static inline bool |
635 | __br_multicast_querier_exists(struct net_bridge *br, | |
0888d5f3 | 636 | struct bridge_mcast_other_query *querier, |
637 | const bool is_ipv6) | |
b00589af | 638 | { |
0888d5f3 | 639 | bool own_querier_enabled; |
640 | ||
641 | if (br->multicast_querier) { | |
642 | if (is_ipv6 && !br->has_ipv6_addr) | |
643 | own_querier_enabled = false; | |
644 | else | |
645 | own_querier_enabled = true; | |
646 | } else { | |
647 | own_querier_enabled = false; | |
648 | } | |
649 | ||
cc0fdd80 | 650 | return time_is_before_jiffies(querier->delay_time) && |
0888d5f3 | 651 | (own_querier_enabled || timer_pending(&querier->timer)); |
cc0fdd80 LL |
652 | } |
653 | ||
654 | static inline bool br_multicast_querier_exists(struct net_bridge *br, | |
655 | struct ethhdr *eth) | |
656 | { | |
657 | switch (eth->h_proto) { | |
658 | case (htons(ETH_P_IP)): | |
0888d5f3 | 659 | return __br_multicast_querier_exists(br, |
660 | &br->ip4_other_query, false); | |
cc0fdd80 LL |
661 | #if IS_ENABLED(CONFIG_IPV6) |
662 | case (htons(ETH_P_IPV6)): | |
0888d5f3 | 663 | return __br_multicast_querier_exists(br, |
664 | &br->ip6_other_query, true); | |
cc0fdd80 LL |
665 | #endif |
666 | default: | |
667 | return false; | |
668 | } | |
b00589af | 669 | } |
1080ab95 NA |
670 | |
671 | static inline int br_multicast_igmp_type(const struct sk_buff *skb) | |
672 | { | |
673 | return BR_INPUT_SKB_CB(skb)->igmp; | |
674 | } | |
eb1d1641 HX |
675 | #else |
676 | static inline int br_multicast_rcv(struct net_bridge *br, | |
677 | struct net_bridge_port *port, | |
06499098 VY |
678 | struct sk_buff *skb, |
679 | u16 vid) | |
eb1d1641 HX |
680 | { |
681 | return 0; | |
682 | } | |
683 | ||
684 | static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, | |
fbca58a2 | 685 | struct sk_buff *skb, u16 vid) |
eb1d1641 HX |
686 | { |
687 | return NULL; | |
688 | } | |
689 | ||
1080ab95 | 690 | static inline int br_multicast_add_port(struct net_bridge_port *port) |
eb1d1641 | 691 | { |
1080ab95 | 692 | return 0; |
eb1d1641 HX |
693 | } |
694 | ||
695 | static inline void br_multicast_del_port(struct net_bridge_port *port) | |
696 | { | |
697 | } | |
698 | ||
699 | static inline void br_multicast_enable_port(struct net_bridge_port *port) | |
700 | { | |
701 | } | |
702 | ||
703 | static inline void br_multicast_disable_port(struct net_bridge_port *port) | |
704 | { | |
705 | } | |
706 | ||
707 | static inline void br_multicast_init(struct net_bridge *br) | |
708 | { | |
709 | } | |
710 | ||
711 | static inline void br_multicast_open(struct net_bridge *br) | |
712 | { | |
713 | } | |
714 | ||
715 | static inline void br_multicast_stop(struct net_bridge *br) | |
716 | { | |
717 | } | |
5cb5e947 | 718 | |
a7ce45a7 NA |
719 | static inline void br_multicast_dev_del(struct net_bridge *br) |
720 | { | |
721 | } | |
722 | ||
37b090e6 NA |
723 | static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, |
724 | struct sk_buff *skb, | |
725 | bool local_rcv, bool local_orig) | |
5cb5e947 HX |
726 | { |
727 | } | |
728 | ||
eb1d1641 HX |
729 | static inline bool br_multicast_is_router(struct net_bridge *br) |
730 | { | |
85b35269 | 731 | return 0; |
eb1d1641 | 732 | } |
37b090e6 | 733 | |
cc0fdd80 LL |
734 | static inline bool br_multicast_querier_exists(struct net_bridge *br, |
735 | struct ethhdr *eth) | |
b00589af LL |
736 | { |
737 | return false; | |
738 | } | |
37b090e6 | 739 | |
fdb184d1 RR |
740 | static inline void br_mdb_init(void) |
741 | { | |
742 | } | |
37b090e6 | 743 | |
fdb184d1 RR |
744 | static inline void br_mdb_uninit(void) |
745 | { | |
746 | } | |
1080ab95 NA |
747 | |
748 | static inline void br_multicast_count(struct net_bridge *br, | |
749 | const struct net_bridge_port *p, | |
a65056ec NA |
750 | const struct sk_buff *skb, |
751 | u8 type, u8 dir) | |
1080ab95 NA |
752 | { |
753 | } | |
754 | ||
755 | static inline int br_multicast_init_stats(struct net_bridge *br) | |
756 | { | |
757 | return 0; | |
758 | } | |
759 | ||
760 | static inline int br_multicast_igmp_type(const struct sk_buff *skb) | |
761 | { | |
762 | return 0; | |
763 | } | |
85b35269 | 764 | #endif |
eb1d1641 | 765 | |
243a2e63 VY |
766 | /* br_vlan.c */ |
767 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
77751ee8 NA |
768 | bool br_allowed_ingress(const struct net_bridge *br, |
769 | struct net_bridge_vlan_group *vg, struct sk_buff *skb, | |
770 | u16 *vid); | |
771 | bool br_allowed_egress(struct net_bridge_vlan_group *vg, | |
348662a1 | 772 | const struct sk_buff *skb); |
e0d7968a | 773 | bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); |
348662a1 | 774 | struct sk_buff *br_handle_vlan(struct net_bridge *br, |
11538d03 | 775 | const struct net_bridge_port *port, |
2594e906 | 776 | struct net_bridge_vlan_group *vg, |
348662a1 JP |
777 | struct sk_buff *skb); |
778 | int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); | |
779 | int br_vlan_delete(struct net_bridge *br, u16 vid); | |
780 | void br_vlan_flush(struct net_bridge *br); | |
2594e906 | 781 | struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); |
204177f3 | 782 | void br_recalculate_fwd_mask(struct net_bridge *br); |
a7854037 | 783 | int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
348662a1 | 784 | int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
d2d427b3 | 785 | int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); |
204177f3 | 786 | int br_vlan_set_proto(struct net_bridge *br, unsigned long val); |
6dada9b1 | 787 | int br_vlan_set_stats(struct net_bridge *br, unsigned long val); |
5be5a2df | 788 | int br_vlan_init(struct net_bridge *br); |
96a20d9d | 789 | int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); |
0f963b75 | 790 | int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid); |
348662a1 JP |
791 | int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); |
792 | int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); | |
793 | void nbp_vlan_flush(struct net_bridge_port *port); | |
5be5a2df | 794 | int nbp_vlan_init(struct net_bridge_port *port); |
2594e906 | 795 | int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); |
a60c0903 NA |
796 | void br_vlan_get_stats(const struct net_bridge_vlan *v, |
797 | struct br_vlan_stats *stats); | |
a37b85c9 | 798 | |
2594e906 NA |
799 | static inline struct net_bridge_vlan_group *br_vlan_group( |
800 | const struct net_bridge *br) | |
a37b85c9 | 801 | { |
907b1e6e | 802 | return rtnl_dereference(br->vlgrp); |
a37b85c9 VY |
803 | } |
804 | ||
2594e906 NA |
805 | static inline struct net_bridge_vlan_group *nbp_vlan_group( |
806 | const struct net_bridge_port *p) | |
a37b85c9 | 807 | { |
907b1e6e NA |
808 | return rtnl_dereference(p->vlgrp); |
809 | } | |
810 | ||
811 | static inline struct net_bridge_vlan_group *br_vlan_group_rcu( | |
812 | const struct net_bridge *br) | |
813 | { | |
814 | return rcu_dereference(br->vlgrp); | |
815 | } | |
816 | ||
817 | static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( | |
818 | const struct net_bridge_port *p) | |
819 | { | |
820 | return rcu_dereference(p->vlgrp); | |
a37b85c9 VY |
821 | } |
822 | ||
823 | /* Since bridge now depends on 8021Q module, but the time bridge sees the | |
824 | * skb, the vlan tag will always be present if the frame was tagged. | |
825 | */ | |
826 | static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) | |
827 | { | |
828 | int err = 0; | |
829 | ||
2594e906 | 830 | if (skb_vlan_tag_present(skb)) { |
df8a39de | 831 | *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; |
2594e906 | 832 | } else { |
a37b85c9 VY |
833 | *vid = 0; |
834 | err = -EINVAL; | |
835 | } | |
836 | ||
837 | return err; | |
838 | } | |
78851988 | 839 | |
77751ee8 | 840 | static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) |
2594e906 | 841 | { |
77751ee8 | 842 | if (!vg) |
2594e906 NA |
843 | return 0; |
844 | ||
845 | smp_rmb(); | |
77751ee8 | 846 | return vg->pvid; |
78851988 VY |
847 | } |
848 | ||
2796d0c6 VY |
849 | static inline int br_vlan_enabled(struct net_bridge *br) |
850 | { | |
851 | return br->vlan_enabled; | |
852 | } | |
243a2e63 | 853 | #else |
77751ee8 NA |
854 | static inline bool br_allowed_ingress(const struct net_bridge *br, |
855 | struct net_bridge_vlan_group *vg, | |
78851988 VY |
856 | struct sk_buff *skb, |
857 | u16 *vid) | |
a37b85c9 VY |
858 | { |
859 | return true; | |
860 | } | |
861 | ||
2594e906 | 862 | static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, |
85f46c6b VY |
863 | const struct sk_buff *skb) |
864 | { | |
865 | return true; | |
866 | } | |
867 | ||
e0d7968a TM |
868 | static inline bool br_should_learn(struct net_bridge_port *p, |
869 | struct sk_buff *skb, u16 *vid) | |
870 | { | |
871 | return true; | |
872 | } | |
873 | ||
78851988 | 874 | static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, |
11538d03 | 875 | const struct net_bridge_port *port, |
2594e906 | 876 | struct net_bridge_vlan_group *vg, |
78851988 VY |
877 | struct sk_buff *skb) |
878 | { | |
879 | return skb; | |
880 | } | |
881 | ||
552406c4 | 882 | static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) |
243a2e63 VY |
883 | { |
884 | return -EOPNOTSUPP; | |
885 | } | |
886 | ||
887 | static inline int br_vlan_delete(struct net_bridge *br, u16 vid) | |
888 | { | |
889 | return -EOPNOTSUPP; | |
890 | } | |
891 | ||
892 | static inline void br_vlan_flush(struct net_bridge *br) | |
893 | { | |
894 | } | |
895 | ||
204177f3 TM |
896 | static inline void br_recalculate_fwd_mask(struct net_bridge *br) |
897 | { | |
898 | } | |
899 | ||
5be5a2df | 900 | static inline int br_vlan_init(struct net_bridge *br) |
8580e211 | 901 | { |
5be5a2df | 902 | return 0; |
8580e211 TM |
903 | } |
904 | ||
552406c4 | 905 | static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) |
243a2e63 VY |
906 | { |
907 | return -EOPNOTSUPP; | |
908 | } | |
909 | ||
910 | static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) | |
911 | { | |
912 | return -EOPNOTSUPP; | |
913 | } | |
914 | ||
915 | static inline void nbp_vlan_flush(struct net_bridge_port *port) | |
916 | { | |
917 | } | |
918 | ||
2594e906 NA |
919 | static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, |
920 | u16 vid) | |
a37b85c9 VY |
921 | { |
922 | return NULL; | |
923 | } | |
924 | ||
2594e906 | 925 | static inline int nbp_vlan_init(struct net_bridge_port *port) |
bc9a25d2 | 926 | { |
2594e906 | 927 | return 0; |
bc9a25d2 VY |
928 | } |
929 | ||
2594e906 | 930 | static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) |
5be5a2df VY |
931 | { |
932 | return 0; | |
933 | } | |
934 | ||
77751ee8 | 935 | static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) |
78851988 | 936 | { |
3df6bf45 | 937 | return 0; |
78851988 | 938 | } |
2796d0c6 | 939 | |
d4f0e095 | 940 | static inline int br_vlan_enabled(struct net_bridge *br) |
2796d0c6 VY |
941 | { |
942 | return 0; | |
943 | } | |
a7854037 NA |
944 | |
945 | static inline int __br_vlan_filter_toggle(struct net_bridge *br, | |
946 | unsigned long val) | |
947 | { | |
948 | return -EOPNOTSUPP; | |
949 | } | |
2594e906 NA |
950 | |
951 | static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, | |
952 | u32 filter_mask) | |
953 | { | |
954 | return 0; | |
955 | } | |
956 | ||
957 | static inline struct net_bridge_vlan_group *br_vlan_group( | |
958 | const struct net_bridge *br) | |
959 | { | |
960 | return NULL; | |
961 | } | |
962 | ||
963 | static inline struct net_bridge_vlan_group *nbp_vlan_group( | |
964 | const struct net_bridge_port *p) | |
965 | { | |
966 | return NULL; | |
967 | } | |
907b1e6e NA |
968 | |
969 | static inline struct net_bridge_vlan_group *br_vlan_group_rcu( | |
970 | const struct net_bridge *br) | |
971 | { | |
972 | return NULL; | |
973 | } | |
974 | ||
975 | static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( | |
976 | const struct net_bridge_port *p) | |
977 | { | |
978 | return NULL; | |
979 | } | |
a60c0903 NA |
980 | |
981 | static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, | |
982 | struct br_vlan_stats *stats) | |
983 | { | |
984 | } | |
243a2e63 VY |
985 | #endif |
986 | ||
1a4ba64d PNA |
987 | struct nf_br_ops { |
988 | int (*br_dev_xmit_hook)(struct sk_buff *skb); | |
989 | }; | |
990 | extern const struct nf_br_ops __rcu *nf_br_ops; | |
991 | ||
1da177e4 | 992 | /* br_netfilter.c */ |
34666d46 PNA |
993 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
994 | int br_nf_core_init(void); | |
995 | void br_nf_core_fini(void); | |
348662a1 | 996 | void br_netfilter_rtable_init(struct net_bridge *); |
c0909713 | 997 | #else |
34666d46 PNA |
998 | static inline int br_nf_core_init(void) { return 0; } |
999 | static inline void br_nf_core_fini(void) {} | |
4adf0af6 | 1000 | #define br_netfilter_rtable_init(x) |
c0909713 | 1001 | #endif |
1da177e4 LT |
1002 | |
1003 | /* br_stp.c */ | |
775dd692 | 1004 | void br_set_state(struct net_bridge_port *p, unsigned int state); |
348662a1 JP |
1005 | struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); |
1006 | void br_init_port(struct net_bridge_port *p); | |
1007 | void br_become_designated_port(struct net_bridge_port *p); | |
1da177e4 | 1008 | |
348662a1 JP |
1009 | void __br_set_forward_delay(struct net_bridge *br, unsigned long t); |
1010 | int br_set_forward_delay(struct net_bridge *br, unsigned long x); | |
1011 | int br_set_hello_time(struct net_bridge *br, unsigned long x); | |
1012 | int br_set_max_age(struct net_bridge *br, unsigned long x); | |
82dd4332 | 1013 | int __set_ageing_time(struct net_device *dev, unsigned long t); |
9e0b27fe | 1014 | int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); |
14f98f25 | 1015 | |
1016 | ||
1da177e4 | 1017 | /* br_stp_if.c */ |
348662a1 JP |
1018 | void br_stp_enable_bridge(struct net_bridge *br); |
1019 | void br_stp_disable_bridge(struct net_bridge *br); | |
1020 | void br_stp_set_enabled(struct net_bridge *br, unsigned long val); | |
1021 | void br_stp_enable_port(struct net_bridge_port *p); | |
1022 | void br_stp_disable_port(struct net_bridge_port *p); | |
1023 | bool br_stp_recalculate_bridge_id(struct net_bridge *br); | |
1024 | void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); | |
1025 | void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); | |
1026 | int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); | |
1027 | int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); | |
1028 | ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); | |
1da177e4 LT |
1029 | |
1030 | /* br_stp_bpdu.c */ | |
7c85fbf0 | 1031 | struct stp_proto; |
348662a1 JP |
1032 | void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, |
1033 | struct net_device *dev); | |
1da177e4 LT |
1034 | |
1035 | /* br_stp_timer.c */ | |
348662a1 JP |
1036 | void br_stp_timer_init(struct net_bridge *br); |
1037 | void br_stp_port_timer_init(struct net_bridge_port *p); | |
1038 | unsigned long br_timer_value(const struct timer_list *timer); | |
1da177e4 LT |
1039 | |
1040 | /* br.c */ | |
e6373c4c | 1041 | #if IS_ENABLED(CONFIG_ATM_LANE) |
da678292 MM |
1042 | extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); |
1043 | #endif | |
1da177e4 | 1044 | |
11dc1f36 | 1045 | /* br_netlink.c */ |
149ddd83 | 1046 | extern struct rtnl_link_ops br_link_ops; |
348662a1 JP |
1047 | int br_netlink_init(void); |
1048 | void br_netlink_fini(void); | |
1049 | void br_ifinfo_notify(int event, struct net_bridge_port *port); | |
add511b3 RP |
1050 | int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); |
1051 | int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); | |
348662a1 | 1052 | int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, |
46c264da | 1053 | u32 filter_mask, int nlflags); |
11dc1f36 | 1054 | |
1da177e4 LT |
1055 | #ifdef CONFIG_SYSFS |
1056 | /* br_sysfs_if.c */ | |
52cf25d0 | 1057 | extern const struct sysfs_ops brport_sysfs_ops; |
348662a1 JP |
1058 | int br_sysfs_addif(struct net_bridge_port *p); |
1059 | int br_sysfs_renameif(struct net_bridge_port *p); | |
1da177e4 LT |
1060 | |
1061 | /* br_sysfs_br.c */ | |
348662a1 JP |
1062 | int br_sysfs_addbr(struct net_device *dev); |
1063 | void br_sysfs_delbr(struct net_device *dev); | |
1da177e4 LT |
1064 | |
1065 | #else | |
1066 | ||
0cb2bbbe LJ |
1067 | static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } |
1068 | static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } | |
1069 | static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } | |
1070 | static inline void br_sysfs_delbr(struct net_device *dev) { return; } | |
1da177e4 LT |
1071 | #endif /* CONFIG_SYSFS */ |
1072 | ||
6bc506b4 IS |
1073 | /* br_switchdev.c */ |
1074 | #ifdef CONFIG_NET_SWITCHDEV | |
1075 | int nbp_switchdev_mark_set(struct net_bridge_port *p); | |
1076 | void nbp_switchdev_frame_mark(const struct net_bridge_port *p, | |
1077 | struct sk_buff *skb); | |
1078 | bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, | |
1079 | const struct sk_buff *skb); | |
1080 | #else | |
1081 | static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) | |
1082 | { | |
1083 | return 0; | |
1084 | } | |
1085 | ||
1086 | static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, | |
1087 | struct sk_buff *skb) | |
1088 | { | |
1089 | } | |
1090 | ||
1091 | static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, | |
1092 | const struct sk_buff *skb) | |
1093 | { | |
1094 | return true; | |
1095 | } | |
1096 | #endif /* CONFIG_NET_SWITCHDEV */ | |
1097 | ||
1da177e4 | 1098 | #endif |