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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 | ||
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 | ||
1214628c | 163 | struct net_bridge_fdb_entry { |
1da177e4 LT |
164 | struct hlist_node hlist; |
165 | struct net_bridge_port *dst; | |
166 | ||
1da177e4 | 167 | mac_addr addr; |
b22fbf22 | 168 | __u16 vlan_id; |
93859b13 JP |
169 | unsigned char is_local:1, |
170 | is_static:1, | |
cf6b8e1e SF |
171 | added_by_user:1, |
172 | added_by_external_learn:1; | |
1214628c NA |
173 | |
174 | /* write-heavy members should not affect lookups */ | |
175 | unsigned long updated ____cacheline_aligned_in_smp; | |
176 | unsigned long used; | |
177 | ||
b22fbf22 | 178 | struct rcu_head rcu; |
1da177e4 LT |
179 | }; |
180 | ||
9d06b6d8 ER |
181 | #define MDB_PG_FLAGS_PERMANENT BIT(0) |
182 | #define MDB_PG_FLAGS_OFFLOAD BIT(1) | |
183 | ||
eb1d1641 HX |
184 | struct net_bridge_port_group { |
185 | struct net_bridge_port *port; | |
e8051688 | 186 | struct net_bridge_port_group __rcu *next; |
eb1d1641 HX |
187 | struct hlist_node mglist; |
188 | struct rcu_head rcu; | |
189 | struct timer_list timer; | |
8ef2a9a5 | 190 | struct br_ip addr; |
9d06b6d8 | 191 | unsigned char flags; |
6db6f0ea | 192 | unsigned char eth_addr[ETH_ALEN]; |
eb1d1641 HX |
193 | }; |
194 | ||
195 | struct net_bridge_mdb_entry | |
196 | { | |
197 | struct hlist_node hlist[2]; | |
eb1d1641 | 198 | struct net_bridge *br; |
e8051688 | 199 | struct net_bridge_port_group __rcu *ports; |
eb1d1641 HX |
200 | struct rcu_head rcu; |
201 | struct timer_list timer; | |
8ef2a9a5 | 202 | struct br_ip addr; |
8a870178 | 203 | bool mglist; |
eb1d1641 HX |
204 | }; |
205 | ||
206 | struct net_bridge_mdb_htable | |
207 | { | |
208 | struct hlist_head *mhash; | |
209 | struct rcu_head rcu; | |
210 | struct net_bridge_mdb_htable *old; | |
211 | u32 size; | |
212 | u32 max; | |
213 | u32 secret; | |
214 | u32 ver; | |
215 | }; | |
216 | ||
1f90c7f3 | 217 | struct net_bridge_port { |
1da177e4 LT |
218 | struct net_bridge *br; |
219 | struct net_device *dev; | |
220 | struct list_head list; | |
221 | ||
1f90c7f3 NA |
222 | unsigned long flags; |
223 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
224 | struct net_bridge_vlan_group __rcu *vlgrp; | |
225 | #endif | |
226 | ||
1da177e4 LT |
227 | /* STP */ |
228 | u8 priority; | |
229 | u8 state; | |
230 | u16 port_no; | |
231 | unsigned char topology_change_ack; | |
232 | unsigned char config_pending; | |
233 | port_id port_id; | |
234 | port_id designated_port; | |
235 | bridge_id designated_root; | |
236 | bridge_id designated_bridge; | |
237 | u32 path_cost; | |
238 | u32 designated_cost; | |
0c03150e | 239 | unsigned long designated_age; |
1da177e4 LT |
240 | |
241 | struct timer_list forward_delay_timer; | |
242 | struct timer_list hold_timer; | |
243 | struct timer_list message_age_timer; | |
244 | struct kobject kobj; | |
245 | struct rcu_head rcu; | |
3982d3d2 | 246 | |
eb1d1641 | 247 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
90010b36 | 248 | struct bridge_mcast_own_query ip4_own_query; |
cc0fdd80 | 249 | #if IS_ENABLED(CONFIG_IPV6) |
90010b36 | 250 | struct bridge_mcast_own_query ip6_own_query; |
cc0fdd80 | 251 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
eb1d1641 | 252 | unsigned char multicast_router; |
1080ab95 | 253 | struct bridge_mcast_stats __percpu *mcast_stats; |
eb1d1641 | 254 | struct timer_list multicast_router_timer; |
eb1d1641 HX |
255 | struct hlist_head mglist; |
256 | struct hlist_node rlist; | |
257 | #endif | |
e0f43752 SA |
258 | |
259 | #ifdef CONFIG_SYSFS | |
260 | char sysfs_name[IFNAMSIZ]; | |
261 | #endif | |
91d2c34a HX |
262 | |
263 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
264 | struct netpoll *np; | |
265 | #endif | |
6bc506b4 IS |
266 | #ifdef CONFIG_NET_SWITCHDEV |
267 | int offload_fwd_mark; | |
268 | #endif | |
1da177e4 LT |
269 | }; |
270 | ||
e028e4b8 | 271 | #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) |
f3a6ddf1 | 272 | #define br_promisc_port(p) ((p)->flags & BR_PROMISC) |
e028e4b8 | 273 | |
f350a0a8 JP |
274 | #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) |
275 | ||
b5ed54e9 | 276 | static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) |
277 | { | |
716ec052 | 278 | return rcu_dereference(dev->rx_handler_data); |
b5ed54e9 | 279 | } |
280 | ||
1fb1754a | 281 | static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) |
b5ed54e9 | 282 | { |
ec1e5610 ED |
283 | return br_port_exists(dev) ? |
284 | rtnl_dereference(dev->rx_handler_data) : NULL; | |
b5ed54e9 | 285 | } |
286 | ||
1f90c7f3 | 287 | struct net_bridge { |
1da177e4 | 288 | spinlock_t lock; |
1f90c7f3 | 289 | spinlock_t hash_lock; |
1da177e4 LT |
290 | struct list_head port_list; |
291 | struct net_device *dev; | |
8f84985f | 292 | struct pcpu_sw_netstats __percpu *stats; |
1f90c7f3 NA |
293 | /* These fields are accessed on each packet */ |
294 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
295 | u8 vlan_enabled; | |
296 | u8 vlan_stats_enabled; | |
297 | __be16 vlan_proto; | |
298 | u16 default_pvid; | |
299 | struct net_bridge_vlan_group __rcu *vlgrp; | |
300 | #endif | |
301 | ||
1da177e4 | 302 | struct hlist_head hash[BR_HASH_SIZE]; |
34666d46 | 303 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
efb6de9b BT |
304 | union { |
305 | struct rtable fake_rtable; | |
306 | struct rt6_info fake_rt6_info; | |
307 | }; | |
4df53d8b PM |
308 | bool nf_call_iptables; |
309 | bool nf_call_ip6tables; | |
310 | bool nf_call_arptables; | |
4adf0af6 | 311 | #endif |
515853cc | 312 | u16 group_fwd_mask; |
f2808d22 | 313 | u16 group_fwd_mask_required; |
515853cc | 314 | |
1da177e4 LT |
315 | /* STP */ |
316 | bridge_id designated_root; | |
317 | bridge_id bridge_id; | |
318 | u32 root_path_cost; | |
1f90c7f3 NA |
319 | unsigned char topology_change; |
320 | unsigned char topology_change_detected; | |
321 | u16 root_port; | |
1da177e4 LT |
322 | unsigned long max_age; |
323 | unsigned long hello_time; | |
324 | unsigned long forward_delay; | |
1da177e4 | 325 | unsigned long ageing_time; |
34d8acd8 | 326 | unsigned long bridge_max_age; |
1da177e4 LT |
327 | unsigned long bridge_hello_time; |
328 | unsigned long bridge_forward_delay; | |
34d8acd8 | 329 | unsigned long bridge_ageing_time; |
1da177e4 | 330 | |
fda93d92 | 331 | u8 group_addr[ETH_ALEN]; |
204177f3 | 332 | bool group_addr_set; |
9cde0708 SH |
333 | |
334 | enum { | |
335 | BR_NO_STP, /* no spanning tree */ | |
336 | BR_KERNEL_STP, /* old STP in kernel */ | |
337 | BR_USER_STP, /* new RSTP in userspace */ | |
338 | } stp_enabled; | |
339 | ||
eb1d1641 HX |
340 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
341 | unsigned char multicast_router; | |
342 | ||
343 | u8 multicast_disabled:1; | |
c5c23260 | 344 | u8 multicast_querier:1; |
1c8ad5bf | 345 | u8 multicast_query_use_ifaddr:1; |
0888d5f3 | 346 | u8 has_ipv6_addr:1; |
1080ab95 | 347 | u8 multicast_stats_enabled:1; |
eb1d1641 HX |
348 | |
349 | u32 hash_elasticity; | |
350 | u32 hash_max; | |
351 | ||
352 | u32 multicast_last_member_count; | |
eb1d1641 HX |
353 | u32 multicast_startup_query_count; |
354 | ||
5e923585 NA |
355 | u8 multicast_igmp_version; |
356 | ||
eb1d1641 HX |
357 | unsigned long multicast_last_member_interval; |
358 | unsigned long multicast_membership_interval; | |
359 | unsigned long multicast_querier_interval; | |
360 | unsigned long multicast_query_interval; | |
361 | unsigned long multicast_query_response_interval; | |
362 | unsigned long multicast_startup_query_interval; | |
363 | ||
364 | spinlock_t multicast_lock; | |
e8051688 | 365 | struct net_bridge_mdb_htable __rcu *mdb; |
eb1d1641 | 366 | struct hlist_head router_list; |
eb1d1641 HX |
367 | |
368 | struct timer_list multicast_router_timer; | |
90010b36 LL |
369 | struct bridge_mcast_other_query ip4_other_query; |
370 | struct bridge_mcast_own_query ip4_own_query; | |
dc4eb53a | 371 | struct bridge_mcast_querier ip4_querier; |
1080ab95 | 372 | struct bridge_mcast_stats __percpu *mcast_stats; |
cc0fdd80 | 373 | #if IS_ENABLED(CONFIG_IPV6) |
90010b36 LL |
374 | struct bridge_mcast_other_query ip6_other_query; |
375 | struct bridge_mcast_own_query ip6_own_query; | |
dc4eb53a | 376 | struct bridge_mcast_querier ip6_querier; |
aa2ae3e7 | 377 | u8 multicast_mld_version; |
cc0fdd80 | 378 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
eb1d1641 HX |
379 | #endif |
380 | ||
1da177e4 LT |
381 | struct timer_list hello_timer; |
382 | struct timer_list tcn_timer; | |
383 | struct timer_list topology_change_timer; | |
f7cdee8a | 384 | struct delayed_work gc_work; |
43b98c4a | 385 | struct kobject *ifobj; |
e028e4b8 | 386 | u32 auto_cnt; |
6bc506b4 IS |
387 | |
388 | #ifdef CONFIG_NET_SWITCHDEV | |
389 | int offload_fwd_mark; | |
390 | #endif | |
1da177e4 LT |
391 | }; |
392 | ||
68b7c895 HX |
393 | struct br_input_skb_cb { |
394 | struct net_device *brdev; | |
93fdd47e | 395 | |
32dec5dd | 396 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
eb1d1641 HX |
397 | int igmp; |
398 | int mrouters_only; | |
32dec5dd | 399 | #endif |
93fdd47e | 400 | |
842a9ae0 | 401 | bool proxyarp_replied; |
93fdd47e | 402 | |
20adfa1a VY |
403 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
404 | bool vlan_filtered; | |
405 | #endif | |
6bc506b4 IS |
406 | |
407 | #ifdef CONFIG_NET_SWITCHDEV | |
408 | int offload_fwd_mark; | |
409 | #endif | |
68b7c895 HX |
410 | }; |
411 | ||
412 | #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) | |
413 | ||
32dec5dd YH |
414 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
415 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) | |
416 | #else | |
417 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) | |
418 | #endif | |
419 | ||
28a16c97 | 420 | #define br_printk(level, br, format, args...) \ |
421 | printk(level "%s: " format, (br)->dev->name, ##args) | |
422 | ||
423 | #define br_err(__br, format, args...) \ | |
424 | br_printk(KERN_ERR, __br, format, ##args) | |
425 | #define br_warn(__br, format, args...) \ | |
426 | br_printk(KERN_WARNING, __br, format, ##args) | |
427 | #define br_notice(__br, format, args...) \ | |
428 | br_printk(KERN_NOTICE, __br, format, ##args) | |
429 | #define br_info(__br, format, args...) \ | |
430 | br_printk(KERN_INFO, __br, format, ##args) | |
431 | ||
432 | #define br_debug(br, format, args...) \ | |
433 | pr_debug("%s: " format, (br)->dev->name, ##args) | |
434 | ||
1da177e4 LT |
435 | /* called under bridge lock */ |
436 | static inline int br_is_root_bridge(const struct net_bridge *br) | |
437 | { | |
438 | return !memcmp(&br->bridge_id, &br->designated_root, 8); | |
439 | } | |
440 | ||
2594e906 NA |
441 | /* check if a VLAN entry is global */ |
442 | static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) | |
443 | { | |
444 | return v->flags & BRIDGE_VLAN_INFO_MASTER; | |
445 | } | |
446 | ||
447 | /* check if a VLAN entry is used by the bridge */ | |
448 | static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) | |
449 | { | |
450 | return v->flags & BRIDGE_VLAN_INFO_BRENTRY; | |
451 | } | |
452 | ||
6be144f6 | 453 | /* check if we should use the vlan entry, returns false if it's only context */ |
2594e906 NA |
454 | static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) |
455 | { | |
456 | if (br_vlan_is_master(v)) { | |
457 | if (br_vlan_is_brentry(v)) | |
458 | return true; | |
459 | else | |
460 | return false; | |
461 | } | |
462 | ||
463 | return true; | |
464 | } | |
465 | ||
1da177e4 | 466 | /* br_device.c */ |
348662a1 JP |
467 | void br_dev_setup(struct net_device *dev); |
468 | void br_dev_delete(struct net_device *dev, struct list_head *list); | |
469 | netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); | |
cfb478da | 470 | #ifdef CONFIG_NET_POLL_CONTROLLER |
91d2c34a HX |
471 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
472 | struct sk_buff *skb) | |
473 | { | |
474 | struct netpoll *np = p->np; | |
475 | ||
476 | if (np) | |
477 | netpoll_send_skb(np, skb); | |
478 | } | |
479 | ||
a8779ec1 | 480 | int br_netpoll_enable(struct net_bridge_port *p); |
348662a1 | 481 | void br_netpoll_disable(struct net_bridge_port *p); |
cfb478da | 482 | #else |
9f70b0fc | 483 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
91d2c34a HX |
484 | struct sk_buff *skb) |
485 | { | |
486 | } | |
cfb478da | 487 | |
a8779ec1 | 488 | static inline int br_netpoll_enable(struct net_bridge_port *p) |
91d2c34a HX |
489 | { |
490 | return 0; | |
491 | } | |
492 | ||
493 | static inline void br_netpoll_disable(struct net_bridge_port *p) | |
494 | { | |
495 | } | |
cfb478da | 496 | #endif |
1da177e4 LT |
497 | |
498 | /* br_fdb.c */ | |
348662a1 JP |
499 | int br_fdb_init(void); |
500 | void br_fdb_fini(void); | |
501 | void br_fdb_flush(struct net_bridge *br); | |
424bb9c9 TM |
502 | void br_fdb_find_delete_local(struct net_bridge *br, |
503 | const struct net_bridge_port *p, | |
504 | const unsigned char *addr, u16 vid); | |
348662a1 JP |
505 | void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); |
506 | void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); | |
f7cdee8a | 507 | void br_fdb_cleanup(struct work_struct *work); |
348662a1 | 508 | void br_fdb_delete_by_port(struct net_bridge *br, |
1ea2d020 | 509 | const struct net_bridge_port *p, u16 vid, int do_all); |
bfd0aeac NA |
510 | struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, |
511 | const unsigned char *addr, | |
512 | __u16 vid); | |
348662a1 JP |
513 | int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); |
514 | int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, | |
515 | unsigned long off); | |
516 | int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, | |
517 | const unsigned char *addr, u16 vid); | |
518 | void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, | |
a5642ab4 | 519 | const unsigned char *addr, u16 vid, bool added_by_user); |
348662a1 JP |
520 | |
521 | int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], | |
f6f6424b | 522 | struct net_device *dev, const unsigned char *addr, u16 vid); |
348662a1 | 523 | int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, |
f6f6424b | 524 | const unsigned char *addr, u16 vid, u16 nlh_flags); |
348662a1 | 525 | int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, |
d297653d | 526 | struct net_device *dev, struct net_device *fdev, int *idx); |
8db24af7 VY |
527 | int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); |
528 | void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); | |
3aeb6617 JP |
529 | int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, |
530 | const unsigned char *addr, u16 vid); | |
531 | int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, | |
532 | const unsigned char *addr, u16 vid); | |
1da177e4 LT |
533 | |
534 | /* br_forward.c */ | |
8addd5e7 NA |
535 | enum br_pkt_type { |
536 | BR_PKT_UNICAST, | |
537 | BR_PKT_MULTICAST, | |
538 | BR_PKT_BROADCAST | |
539 | }; | |
0c4b51f0 | 540 | int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); |
b35c5f63 | 541 | void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, |
37b090e6 | 542 | bool local_rcv, bool local_orig); |
0c4b51f0 | 543 | int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); |
37b090e6 | 544 | void br_flood(struct net_bridge *br, struct sk_buff *skb, |
8addd5e7 | 545 | enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); |
1da177e4 LT |
546 | |
547 | /* br_if.c */ | |
348662a1 JP |
548 | void br_port_carrier_check(struct net_bridge_port *p); |
549 | int br_add_bridge(struct net *net, const char *name); | |
550 | int br_del_bridge(struct net *net, const char *name); | |
348662a1 JP |
551 | int br_add_if(struct net_bridge *br, struct net_device *dev); |
552 | int br_del_if(struct net_bridge *br, struct net_device *dev); | |
553 | int br_min_mtu(const struct net_bridge *br); | |
554 | netdev_features_t br_features_recompute(struct net_bridge *br, | |
555 | netdev_features_t features); | |
e028e4b8 | 556 | void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); |
2796d0c6 | 557 | void br_manage_promisc(struct net_bridge *br); |
1da177e4 LT |
558 | |
559 | /* br_input.c */ | |
0c4b51f0 | 560 | int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); |
348662a1 | 561 | rx_handler_result_t br_handle_frame(struct sk_buff **pskb); |
1da177e4 | 562 | |
859828c0 JP |
563 | static inline bool br_rx_handler_check_rcu(const struct net_device *dev) |
564 | { | |
565 | return rcu_dereference(dev->rx_handler) == br_handle_frame; | |
566 | } | |
567 | ||
568 | static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) | |
569 | { | |
570 | return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; | |
571 | } | |
572 | ||
1da177e4 | 573 | /* br_ioctl.c */ |
348662a1 JP |
574 | int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); |
575 | int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, | |
576 | void __user *arg); | |
1da177e4 | 577 | |
eb1d1641 HX |
578 | /* br_multicast.c */ |
579 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING | |
2ce297fc | 580 | extern unsigned int br_mdb_rehash_seq; |
348662a1 | 581 | int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, |
394efd19 | 582 | struct sk_buff *skb, u16 vid); |
348662a1 JP |
583 | struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, |
584 | struct sk_buff *skb, u16 vid); | |
1080ab95 | 585 | int br_multicast_add_port(struct net_bridge_port *port); |
348662a1 JP |
586 | void br_multicast_del_port(struct net_bridge_port *port); |
587 | void br_multicast_enable_port(struct net_bridge_port *port); | |
588 | void br_multicast_disable_port(struct net_bridge_port *port); | |
589 | void br_multicast_init(struct net_bridge *br); | |
590 | void br_multicast_open(struct net_bridge *br); | |
591 | void br_multicast_stop(struct net_bridge *br); | |
e10177ab | 592 | void br_multicast_dev_del(struct net_bridge *br); |
37b090e6 NA |
593 | void br_multicast_flood(struct net_bridge_mdb_entry *mdst, |
594 | struct sk_buff *skb, bool local_rcv, bool local_orig); | |
348662a1 JP |
595 | int br_multicast_set_router(struct net_bridge *br, unsigned long val); |
596 | int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); | |
597 | int br_multicast_toggle(struct net_bridge *br, unsigned long val); | |
598 | int br_multicast_set_querier(struct net_bridge *br, unsigned long val); | |
599 | int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); | |
5e923585 | 600 | int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); |
aa2ae3e7 NA |
601 | #if IS_ENABLED(CONFIG_IPV6) |
602 | int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); | |
603 | #endif | |
348662a1 JP |
604 | struct net_bridge_mdb_entry * |
605 | br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); | |
606 | struct net_bridge_mdb_entry * | |
607 | br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, | |
608 | struct br_ip *group); | |
609 | void br_multicast_free_pg(struct rcu_head *head); | |
610 | struct net_bridge_port_group * | |
611 | br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, | |
612 | struct net_bridge_port_group __rcu *next, | |
6db6f0ea | 613 | unsigned char flags, const unsigned char *src); |
348662a1 JP |
614 | void br_mdb_init(void); |
615 | void br_mdb_uninit(void); | |
45ebcce5 ER |
616 | void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, |
617 | struct br_ip *group, int type, u8 flags); | |
949f1e39 SA |
618 | void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, |
619 | int type); | |
1080ab95 | 620 | void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, |
a65056ec | 621 | const struct sk_buff *skb, u8 type, u8 dir); |
1080ab95 | 622 | int br_multicast_init_stats(struct net_bridge *br); |
b6fe0440 | 623 | void br_multicast_uninit_stats(struct net_bridge *br); |
1080ab95 NA |
624 | void br_multicast_get_stats(const struct net_bridge *br, |
625 | const struct net_bridge_port *p, | |
626 | struct br_mcast_stats *dest); | |
85b35269 | 627 | |
cfd56754 CW |
628 | #define mlock_dereference(X, br) \ |
629 | rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) | |
630 | ||
85b35269 SS |
631 | static inline bool br_multicast_is_router(struct net_bridge *br) |
632 | { | |
633 | return br->multicast_router == 2 || | |
634 | (br->multicast_router == 1 && | |
635 | timer_pending(&br->multicast_router_timer)); | |
636 | } | |
b00589af | 637 | |
cc0fdd80 LL |
638 | static inline bool |
639 | __br_multicast_querier_exists(struct net_bridge *br, | |
0888d5f3 | 640 | struct bridge_mcast_other_query *querier, |
641 | const bool is_ipv6) | |
b00589af | 642 | { |
0888d5f3 | 643 | bool own_querier_enabled; |
644 | ||
645 | if (br->multicast_querier) { | |
646 | if (is_ipv6 && !br->has_ipv6_addr) | |
647 | own_querier_enabled = false; | |
648 | else | |
649 | own_querier_enabled = true; | |
650 | } else { | |
651 | own_querier_enabled = false; | |
652 | } | |
653 | ||
cc0fdd80 | 654 | return time_is_before_jiffies(querier->delay_time) && |
0888d5f3 | 655 | (own_querier_enabled || timer_pending(&querier->timer)); |
cc0fdd80 LL |
656 | } |
657 | ||
658 | static inline bool br_multicast_querier_exists(struct net_bridge *br, | |
659 | struct ethhdr *eth) | |
660 | { | |
661 | switch (eth->h_proto) { | |
662 | case (htons(ETH_P_IP)): | |
0888d5f3 | 663 | return __br_multicast_querier_exists(br, |
664 | &br->ip4_other_query, false); | |
cc0fdd80 LL |
665 | #if IS_ENABLED(CONFIG_IPV6) |
666 | case (htons(ETH_P_IPV6)): | |
0888d5f3 | 667 | return __br_multicast_querier_exists(br, |
668 | &br->ip6_other_query, true); | |
cc0fdd80 LL |
669 | #endif |
670 | default: | |
671 | return false; | |
672 | } | |
b00589af | 673 | } |
1080ab95 NA |
674 | |
675 | static inline int br_multicast_igmp_type(const struct sk_buff *skb) | |
676 | { | |
677 | return BR_INPUT_SKB_CB(skb)->igmp; | |
678 | } | |
eb1d1641 HX |
679 | #else |
680 | static inline int br_multicast_rcv(struct net_bridge *br, | |
681 | struct net_bridge_port *port, | |
06499098 VY |
682 | struct sk_buff *skb, |
683 | u16 vid) | |
eb1d1641 HX |
684 | { |
685 | return 0; | |
686 | } | |
687 | ||
688 | static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, | |
fbca58a2 | 689 | struct sk_buff *skb, u16 vid) |
eb1d1641 HX |
690 | { |
691 | return NULL; | |
692 | } | |
693 | ||
1080ab95 | 694 | static inline int br_multicast_add_port(struct net_bridge_port *port) |
eb1d1641 | 695 | { |
1080ab95 | 696 | return 0; |
eb1d1641 HX |
697 | } |
698 | ||
699 | static inline void br_multicast_del_port(struct net_bridge_port *port) | |
700 | { | |
701 | } | |
702 | ||
703 | static inline void br_multicast_enable_port(struct net_bridge_port *port) | |
704 | { | |
705 | } | |
706 | ||
707 | static inline void br_multicast_disable_port(struct net_bridge_port *port) | |
708 | { | |
709 | } | |
710 | ||
711 | static inline void br_multicast_init(struct net_bridge *br) | |
712 | { | |
713 | } | |
714 | ||
715 | static inline void br_multicast_open(struct net_bridge *br) | |
716 | { | |
717 | } | |
718 | ||
719 | static inline void br_multicast_stop(struct net_bridge *br) | |
720 | { | |
721 | } | |
5cb5e947 | 722 | |
a7ce45a7 NA |
723 | static inline void br_multicast_dev_del(struct net_bridge *br) |
724 | { | |
725 | } | |
726 | ||
37b090e6 NA |
727 | static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, |
728 | struct sk_buff *skb, | |
729 | bool local_rcv, bool local_orig) | |
5cb5e947 HX |
730 | { |
731 | } | |
732 | ||
eb1d1641 HX |
733 | static inline bool br_multicast_is_router(struct net_bridge *br) |
734 | { | |
85b35269 | 735 | return 0; |
eb1d1641 | 736 | } |
37b090e6 | 737 | |
cc0fdd80 LL |
738 | static inline bool br_multicast_querier_exists(struct net_bridge *br, |
739 | struct ethhdr *eth) | |
b00589af LL |
740 | { |
741 | return false; | |
742 | } | |
37b090e6 | 743 | |
fdb184d1 RR |
744 | static inline void br_mdb_init(void) |
745 | { | |
746 | } | |
37b090e6 | 747 | |
fdb184d1 RR |
748 | static inline void br_mdb_uninit(void) |
749 | { | |
750 | } | |
1080ab95 NA |
751 | |
752 | static inline void br_multicast_count(struct net_bridge *br, | |
753 | const struct net_bridge_port *p, | |
a65056ec NA |
754 | const struct sk_buff *skb, |
755 | u8 type, u8 dir) | |
1080ab95 NA |
756 | { |
757 | } | |
758 | ||
759 | static inline int br_multicast_init_stats(struct net_bridge *br) | |
760 | { | |
761 | return 0; | |
762 | } | |
763 | ||
b6fe0440 IS |
764 | static inline void br_multicast_uninit_stats(struct net_bridge *br) |
765 | { | |
766 | } | |
767 | ||
1080ab95 NA |
768 | static inline int br_multicast_igmp_type(const struct sk_buff *skb) |
769 | { | |
770 | return 0; | |
771 | } | |
85b35269 | 772 | #endif |
eb1d1641 | 773 | |
243a2e63 VY |
774 | /* br_vlan.c */ |
775 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
77751ee8 NA |
776 | bool br_allowed_ingress(const struct net_bridge *br, |
777 | struct net_bridge_vlan_group *vg, struct sk_buff *skb, | |
778 | u16 *vid); | |
779 | bool br_allowed_egress(struct net_bridge_vlan_group *vg, | |
348662a1 | 780 | const struct sk_buff *skb); |
e0d7968a | 781 | bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); |
348662a1 | 782 | struct sk_buff *br_handle_vlan(struct net_bridge *br, |
11538d03 | 783 | const struct net_bridge_port *port, |
2594e906 | 784 | struct net_bridge_vlan_group *vg, |
348662a1 JP |
785 | struct sk_buff *skb); |
786 | int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); | |
787 | int br_vlan_delete(struct net_bridge *br, u16 vid); | |
788 | void br_vlan_flush(struct net_bridge *br); | |
2594e906 | 789 | struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); |
204177f3 | 790 | void br_recalculate_fwd_mask(struct net_bridge *br); |
a7854037 | 791 | int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
348662a1 | 792 | int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
d2d427b3 | 793 | int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); |
204177f3 | 794 | int br_vlan_set_proto(struct net_bridge *br, unsigned long val); |
6dada9b1 | 795 | int br_vlan_set_stats(struct net_bridge *br, unsigned long val); |
5be5a2df | 796 | int br_vlan_init(struct net_bridge *br); |
96a20d9d | 797 | int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); |
0f963b75 | 798 | int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid); |
348662a1 JP |
799 | int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); |
800 | int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); | |
801 | void nbp_vlan_flush(struct net_bridge_port *port); | |
5be5a2df | 802 | int nbp_vlan_init(struct net_bridge_port *port); |
2594e906 | 803 | int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); |
a60c0903 NA |
804 | void br_vlan_get_stats(const struct net_bridge_vlan *v, |
805 | struct br_vlan_stats *stats); | |
a37b85c9 | 806 | |
2594e906 NA |
807 | static inline struct net_bridge_vlan_group *br_vlan_group( |
808 | const struct net_bridge *br) | |
a37b85c9 | 809 | { |
907b1e6e | 810 | return rtnl_dereference(br->vlgrp); |
a37b85c9 VY |
811 | } |
812 | ||
2594e906 NA |
813 | static inline struct net_bridge_vlan_group *nbp_vlan_group( |
814 | const struct net_bridge_port *p) | |
a37b85c9 | 815 | { |
907b1e6e NA |
816 | return rtnl_dereference(p->vlgrp); |
817 | } | |
818 | ||
819 | static inline struct net_bridge_vlan_group *br_vlan_group_rcu( | |
820 | const struct net_bridge *br) | |
821 | { | |
822 | return rcu_dereference(br->vlgrp); | |
823 | } | |
824 | ||
825 | static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( | |
826 | const struct net_bridge_port *p) | |
827 | { | |
828 | return rcu_dereference(p->vlgrp); | |
a37b85c9 VY |
829 | } |
830 | ||
831 | /* Since bridge now depends on 8021Q module, but the time bridge sees the | |
832 | * skb, the vlan tag will always be present if the frame was tagged. | |
833 | */ | |
834 | static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) | |
835 | { | |
836 | int err = 0; | |
837 | ||
2594e906 | 838 | if (skb_vlan_tag_present(skb)) { |
df8a39de | 839 | *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; |
2594e906 | 840 | } else { |
a37b85c9 VY |
841 | *vid = 0; |
842 | err = -EINVAL; | |
843 | } | |
844 | ||
845 | return err; | |
846 | } | |
78851988 | 847 | |
77751ee8 | 848 | static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) |
2594e906 | 849 | { |
77751ee8 | 850 | if (!vg) |
2594e906 NA |
851 | return 0; |
852 | ||
853 | smp_rmb(); | |
77751ee8 | 854 | return vg->pvid; |
78851988 VY |
855 | } |
856 | ||
2796d0c6 VY |
857 | static inline int br_vlan_enabled(struct net_bridge *br) |
858 | { | |
859 | return br->vlan_enabled; | |
860 | } | |
243a2e63 | 861 | #else |
77751ee8 NA |
862 | static inline bool br_allowed_ingress(const struct net_bridge *br, |
863 | struct net_bridge_vlan_group *vg, | |
78851988 VY |
864 | struct sk_buff *skb, |
865 | u16 *vid) | |
a37b85c9 VY |
866 | { |
867 | return true; | |
868 | } | |
869 | ||
2594e906 | 870 | static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, |
85f46c6b VY |
871 | const struct sk_buff *skb) |
872 | { | |
873 | return true; | |
874 | } | |
875 | ||
e0d7968a TM |
876 | static inline bool br_should_learn(struct net_bridge_port *p, |
877 | struct sk_buff *skb, u16 *vid) | |
878 | { | |
879 | return true; | |
880 | } | |
881 | ||
78851988 | 882 | static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, |
11538d03 | 883 | const struct net_bridge_port *port, |
2594e906 | 884 | struct net_bridge_vlan_group *vg, |
78851988 VY |
885 | struct sk_buff *skb) |
886 | { | |
887 | return skb; | |
888 | } | |
889 | ||
552406c4 | 890 | static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) |
243a2e63 VY |
891 | { |
892 | return -EOPNOTSUPP; | |
893 | } | |
894 | ||
895 | static inline int br_vlan_delete(struct net_bridge *br, u16 vid) | |
896 | { | |
897 | return -EOPNOTSUPP; | |
898 | } | |
899 | ||
900 | static inline void br_vlan_flush(struct net_bridge *br) | |
901 | { | |
902 | } | |
903 | ||
204177f3 TM |
904 | static inline void br_recalculate_fwd_mask(struct net_bridge *br) |
905 | { | |
906 | } | |
907 | ||
5be5a2df | 908 | static inline int br_vlan_init(struct net_bridge *br) |
8580e211 | 909 | { |
5be5a2df | 910 | return 0; |
8580e211 TM |
911 | } |
912 | ||
552406c4 | 913 | static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) |
243a2e63 VY |
914 | { |
915 | return -EOPNOTSUPP; | |
916 | } | |
917 | ||
918 | static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) | |
919 | { | |
920 | return -EOPNOTSUPP; | |
921 | } | |
922 | ||
923 | static inline void nbp_vlan_flush(struct net_bridge_port *port) | |
924 | { | |
925 | } | |
926 | ||
2594e906 NA |
927 | static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, |
928 | u16 vid) | |
a37b85c9 VY |
929 | { |
930 | return NULL; | |
931 | } | |
932 | ||
2594e906 | 933 | static inline int nbp_vlan_init(struct net_bridge_port *port) |
bc9a25d2 | 934 | { |
2594e906 | 935 | return 0; |
bc9a25d2 VY |
936 | } |
937 | ||
2594e906 | 938 | static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) |
5be5a2df VY |
939 | { |
940 | return 0; | |
941 | } | |
942 | ||
77751ee8 | 943 | static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) |
78851988 | 944 | { |
3df6bf45 | 945 | return 0; |
78851988 | 946 | } |
2796d0c6 | 947 | |
d4f0e095 | 948 | static inline int br_vlan_enabled(struct net_bridge *br) |
2796d0c6 VY |
949 | { |
950 | return 0; | |
951 | } | |
a7854037 NA |
952 | |
953 | static inline int __br_vlan_filter_toggle(struct net_bridge *br, | |
954 | unsigned long val) | |
955 | { | |
956 | return -EOPNOTSUPP; | |
957 | } | |
2594e906 NA |
958 | |
959 | static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, | |
960 | u32 filter_mask) | |
961 | { | |
962 | return 0; | |
963 | } | |
964 | ||
965 | static inline struct net_bridge_vlan_group *br_vlan_group( | |
966 | const struct net_bridge *br) | |
967 | { | |
968 | return NULL; | |
969 | } | |
970 | ||
971 | static inline struct net_bridge_vlan_group *nbp_vlan_group( | |
972 | const struct net_bridge_port *p) | |
973 | { | |
974 | return NULL; | |
975 | } | |
907b1e6e NA |
976 | |
977 | static inline struct net_bridge_vlan_group *br_vlan_group_rcu( | |
978 | const struct net_bridge *br) | |
979 | { | |
980 | return NULL; | |
981 | } | |
982 | ||
983 | static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( | |
984 | const struct net_bridge_port *p) | |
985 | { | |
986 | return NULL; | |
987 | } | |
a60c0903 NA |
988 | |
989 | static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, | |
990 | struct br_vlan_stats *stats) | |
991 | { | |
992 | } | |
243a2e63 VY |
993 | #endif |
994 | ||
1a4ba64d PNA |
995 | struct nf_br_ops { |
996 | int (*br_dev_xmit_hook)(struct sk_buff *skb); | |
997 | }; | |
998 | extern const struct nf_br_ops __rcu *nf_br_ops; | |
999 | ||
1da177e4 | 1000 | /* br_netfilter.c */ |
34666d46 PNA |
1001 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
1002 | int br_nf_core_init(void); | |
1003 | void br_nf_core_fini(void); | |
348662a1 | 1004 | void br_netfilter_rtable_init(struct net_bridge *); |
c0909713 | 1005 | #else |
34666d46 PNA |
1006 | static inline int br_nf_core_init(void) { return 0; } |
1007 | static inline void br_nf_core_fini(void) {} | |
4adf0af6 | 1008 | #define br_netfilter_rtable_init(x) |
c0909713 | 1009 | #endif |
1da177e4 LT |
1010 | |
1011 | /* br_stp.c */ | |
775dd692 | 1012 | void br_set_state(struct net_bridge_port *p, unsigned int state); |
348662a1 JP |
1013 | struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); |
1014 | void br_init_port(struct net_bridge_port *p); | |
1015 | void br_become_designated_port(struct net_bridge_port *p); | |
1da177e4 | 1016 | |
348662a1 JP |
1017 | void __br_set_forward_delay(struct net_bridge *br, unsigned long t); |
1018 | int br_set_forward_delay(struct net_bridge *br, unsigned long x); | |
1019 | int br_set_hello_time(struct net_bridge *br, unsigned long x); | |
1020 | int br_set_max_age(struct net_bridge *br, unsigned long x); | |
82dd4332 | 1021 | int __set_ageing_time(struct net_device *dev, unsigned long t); |
9e0b27fe | 1022 | int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); |
14f98f25 | 1023 | |
1024 | ||
1da177e4 | 1025 | /* br_stp_if.c */ |
348662a1 JP |
1026 | void br_stp_enable_bridge(struct net_bridge *br); |
1027 | void br_stp_disable_bridge(struct net_bridge *br); | |
1028 | void br_stp_set_enabled(struct net_bridge *br, unsigned long val); | |
1029 | void br_stp_enable_port(struct net_bridge_port *p); | |
1030 | void br_stp_disable_port(struct net_bridge_port *p); | |
1031 | bool br_stp_recalculate_bridge_id(struct net_bridge *br); | |
1032 | void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); | |
1033 | void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); | |
1034 | int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); | |
1035 | int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); | |
1036 | ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); | |
1da177e4 LT |
1037 | |
1038 | /* br_stp_bpdu.c */ | |
7c85fbf0 | 1039 | struct stp_proto; |
348662a1 JP |
1040 | void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, |
1041 | struct net_device *dev); | |
1da177e4 LT |
1042 | |
1043 | /* br_stp_timer.c */ | |
348662a1 JP |
1044 | void br_stp_timer_init(struct net_bridge *br); |
1045 | void br_stp_port_timer_init(struct net_bridge_port *p); | |
1046 | unsigned long br_timer_value(const struct timer_list *timer); | |
1da177e4 LT |
1047 | |
1048 | /* br.c */ | |
e6373c4c | 1049 | #if IS_ENABLED(CONFIG_ATM_LANE) |
da678292 MM |
1050 | extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); |
1051 | #endif | |
1da177e4 | 1052 | |
11dc1f36 | 1053 | /* br_netlink.c */ |
149ddd83 | 1054 | extern struct rtnl_link_ops br_link_ops; |
348662a1 JP |
1055 | int br_netlink_init(void); |
1056 | void br_netlink_fini(void); | |
1057 | void br_ifinfo_notify(int event, struct net_bridge_port *port); | |
add511b3 RP |
1058 | int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); |
1059 | int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); | |
348662a1 | 1060 | int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, |
46c264da | 1061 | u32 filter_mask, int nlflags); |
11dc1f36 | 1062 | |
1da177e4 LT |
1063 | #ifdef CONFIG_SYSFS |
1064 | /* br_sysfs_if.c */ | |
52cf25d0 | 1065 | extern const struct sysfs_ops brport_sysfs_ops; |
348662a1 JP |
1066 | int br_sysfs_addif(struct net_bridge_port *p); |
1067 | int br_sysfs_renameif(struct net_bridge_port *p); | |
1da177e4 LT |
1068 | |
1069 | /* br_sysfs_br.c */ | |
348662a1 JP |
1070 | int br_sysfs_addbr(struct net_device *dev); |
1071 | void br_sysfs_delbr(struct net_device *dev); | |
1da177e4 LT |
1072 | |
1073 | #else | |
1074 | ||
0cb2bbbe LJ |
1075 | static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } |
1076 | static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } | |
1077 | static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } | |
1078 | static inline void br_sysfs_delbr(struct net_device *dev) { return; } | |
1da177e4 LT |
1079 | #endif /* CONFIG_SYSFS */ |
1080 | ||
6bc506b4 IS |
1081 | /* br_switchdev.c */ |
1082 | #ifdef CONFIG_NET_SWITCHDEV | |
1083 | int nbp_switchdev_mark_set(struct net_bridge_port *p); | |
1084 | void nbp_switchdev_frame_mark(const struct net_bridge_port *p, | |
1085 | struct sk_buff *skb); | |
1086 | bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, | |
1087 | const struct sk_buff *skb); | |
1088 | #else | |
1089 | static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) | |
1090 | { | |
1091 | return 0; | |
1092 | } | |
1093 | ||
1094 | static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, | |
1095 | struct sk_buff *skb) | |
1096 | { | |
1097 | } | |
1098 | ||
1099 | static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, | |
1100 | const struct sk_buff *skb) | |
1101 | { | |
1102 | return true; | |
1103 | } | |
1104 | #endif /* CONFIG_NET_SWITCHDEV */ | |
1105 | ||
1da177e4 | 1106 | #endif |