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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> |
25127759 | 24 | #include <linux/refcount.h> |
1da177e4 LT |
25 | |
26 | #define BR_HASH_BITS 8 | |
27 | #define BR_HASH_SIZE (1 << BR_HASH_BITS) | |
28 | ||
29 | #define BR_HOLD_TIME (1*HZ) | |
30 | ||
31 | #define BR_PORT_BITS 10 | |
32 | #define BR_MAX_PORTS (1<<BR_PORT_BITS) | |
33 | ||
9cde0708 SH |
34 | #define BR_VERSION "2.3" |
35 | ||
515853cc | 36 | /* Control of forwarding link local multicast */ |
37 | #define BR_GROUPFWD_DEFAULT 0 | |
784b58a3 | 38 | /* Don't allow forwarding of control protocols like STP, MAC PAUSE and LACP */ |
5af48b59 NA |
39 | enum { |
40 | BR_GROUPFWD_STP = BIT(0), | |
41 | BR_GROUPFWD_MACPAUSE = BIT(1), | |
42 | BR_GROUPFWD_LACP = BIT(2), | |
43 | }; | |
44 | ||
45 | #define BR_GROUPFWD_RESTRICTED (BR_GROUPFWD_STP | BR_GROUPFWD_MACPAUSE | \ | |
46 | BR_GROUPFWD_LACP) | |
f2808d22 TM |
47 | /* The Nearest Customer Bridge Group Address, 01-80-C2-00-00-[00,0B,0C,0D,0F] */ |
48 | #define BR_GROUPFWD_8021AD 0xB801u | |
515853cc | 49 | |
9cde0708 SH |
50 | /* Path to usermode spanning tree program */ |
51 | #define BR_STP_PROG "/sbin/bridge-stp" | |
8cbb512e | 52 | |
1da177e4 LT |
53 | typedef struct bridge_id bridge_id; |
54 | typedef struct mac_addr mac_addr; | |
55 | typedef __u16 port_id; | |
56 | ||
57 | struct bridge_id | |
58 | { | |
59 | unsigned char prio[2]; | |
e5a727f6 | 60 | unsigned char addr[ETH_ALEN]; |
1da177e4 LT |
61 | }; |
62 | ||
63 | struct mac_addr | |
64 | { | |
e5a727f6 | 65 | unsigned char addr[ETH_ALEN]; |
1da177e4 LT |
66 | }; |
67 | ||
cc0fdd80 LL |
68 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
69 | /* our own querier */ | |
90010b36 | 70 | struct bridge_mcast_own_query { |
cc0fdd80 LL |
71 | struct timer_list timer; |
72 | u32 startup_sent; | |
73 | }; | |
74 | ||
75 | /* other querier */ | |
90010b36 | 76 | struct bridge_mcast_other_query { |
cc0fdd80 LL |
77 | struct timer_list timer; |
78 | unsigned long delay_time; | |
79 | }; | |
dc4eb53a LL |
80 | |
81 | /* selected querier */ | |
82 | struct bridge_mcast_querier { | |
83 | struct br_ip addr; | |
2cd41431 | 84 | struct net_bridge_port __rcu *port; |
dc4eb53a | 85 | }; |
1080ab95 NA |
86 | |
87 | /* IGMP/MLD statistics */ | |
88 | struct bridge_mcast_stats { | |
89 | struct br_mcast_stats mstats; | |
90 | struct u64_stats_sync syncp; | |
91 | }; | |
cc0fdd80 LL |
92 | #endif |
93 | ||
6dada9b1 NA |
94 | struct br_vlan_stats { |
95 | u64 rx_bytes; | |
96 | u64 rx_packets; | |
97 | u64 tx_bytes; | |
98 | u64 tx_packets; | |
99 | struct u64_stats_sync syncp; | |
100 | }; | |
101 | ||
efa5356b RP |
102 | struct br_tunnel_info { |
103 | __be64 tunnel_id; | |
104 | struct metadata_dst *tunnel_dst; | |
105 | }; | |
106 | ||
2594e906 NA |
107 | /** |
108 | * struct net_bridge_vlan - per-vlan entry | |
109 | * | |
110 | * @vnode: rhashtable member | |
111 | * @vid: VLAN id | |
112 | * @flags: bridge vlan flags | |
6dada9b1 | 113 | * @stats: per-cpu VLAN statistics |
2594e906 NA |
114 | * @br: if MASTER flag set, this points to a bridge struct |
115 | * @port: if MASTER flag unset, this points to a port struct | |
116 | * @refcnt: if MASTER flag set, this is bumped for each port referencing it | |
117 | * @brvlan: if MASTER flag unset, this points to the global per-VLAN context | |
118 | * for this VLAN entry | |
119 | * @vlist: sorted list of VLAN entries | |
120 | * @rcu: used for entry destruction | |
121 | * | |
122 | * This structure is shared between the global per-VLAN entries contained in | |
123 | * the bridge rhashtable and the local per-port per-VLAN entries contained in | |
124 | * the port's rhashtable. The union entries should be interpreted depending on | |
125 | * the entry flags that are set. | |
126 | */ | |
127 | struct net_bridge_vlan { | |
128 | struct rhash_head vnode; | |
efa5356b | 129 | struct rhash_head tnode; |
2594e906 NA |
130 | u16 vid; |
131 | u16 flags; | |
6dada9b1 | 132 | struct br_vlan_stats __percpu *stats; |
243a2e63 | 133 | union { |
2594e906 NA |
134 | struct net_bridge *br; |
135 | struct net_bridge_port *port; | |
136 | }; | |
137 | union { | |
25127759 | 138 | refcount_t refcnt; |
2594e906 NA |
139 | struct net_bridge_vlan *brvlan; |
140 | }; | |
efa5356b RP |
141 | |
142 | struct br_tunnel_info tinfo; | |
143 | ||
2594e906 NA |
144 | struct list_head vlist; |
145 | ||
243a2e63 | 146 | struct rcu_head rcu; |
2594e906 NA |
147 | }; |
148 | ||
149 | /** | |
150 | * struct net_bridge_vlan_group | |
151 | * | |
152 | * @vlan_hash: VLAN entry rhashtable | |
153 | * @vlan_list: sorted VLAN entry list | |
154 | * @num_vlans: number of total VLAN entries | |
77751ee8 | 155 | * @pvid: PVID VLAN id |
2594e906 NA |
156 | * |
157 | * IMPORTANT: Be careful when checking if there're VLAN entries using list | |
158 | * primitives because the bridge can have entries in its list which | |
159 | * are just for global context but not for filtering, i.e. they have | |
160 | * the master flag set but not the brentry flag. If you have to check | |
161 | * if there're "real" entries in the bridge please test @num_vlans | |
162 | */ | |
163 | struct net_bridge_vlan_group { | |
164 | struct rhashtable vlan_hash; | |
efa5356b | 165 | struct rhashtable tunnel_hash; |
2594e906 | 166 | struct list_head vlan_list; |
6cbdceeb | 167 | u16 num_vlans; |
77751ee8 | 168 | u16 pvid; |
243a2e63 VY |
169 | }; |
170 | ||
1214628c | 171 | struct net_bridge_fdb_entry { |
1da177e4 LT |
172 | struct hlist_node hlist; |
173 | struct net_bridge_port *dst; | |
174 | ||
1da177e4 | 175 | mac_addr addr; |
b22fbf22 | 176 | __u16 vlan_id; |
93859b13 JP |
177 | unsigned char is_local:1, |
178 | is_static:1, | |
cf6b8e1e | 179 | added_by_user:1, |
9fe8bcec AS |
180 | added_by_external_learn:1, |
181 | offloaded:1; | |
1214628c NA |
182 | |
183 | /* write-heavy members should not affect lookups */ | |
184 | unsigned long updated ____cacheline_aligned_in_smp; | |
185 | unsigned long used; | |
186 | ||
b22fbf22 | 187 | struct rcu_head rcu; |
1da177e4 LT |
188 | }; |
189 | ||
9d06b6d8 ER |
190 | #define MDB_PG_FLAGS_PERMANENT BIT(0) |
191 | #define MDB_PG_FLAGS_OFFLOAD BIT(1) | |
192 | ||
eb1d1641 HX |
193 | struct net_bridge_port_group { |
194 | struct net_bridge_port *port; | |
e8051688 | 195 | struct net_bridge_port_group __rcu *next; |
eb1d1641 HX |
196 | struct hlist_node mglist; |
197 | struct rcu_head rcu; | |
198 | struct timer_list timer; | |
8ef2a9a5 | 199 | struct br_ip addr; |
9d06b6d8 | 200 | unsigned char flags; |
6db6f0ea | 201 | unsigned char eth_addr[ETH_ALEN]; |
eb1d1641 HX |
202 | }; |
203 | ||
204 | struct net_bridge_mdb_entry | |
205 | { | |
206 | struct hlist_node hlist[2]; | |
eb1d1641 | 207 | struct net_bridge *br; |
e8051688 | 208 | struct net_bridge_port_group __rcu *ports; |
eb1d1641 HX |
209 | struct rcu_head rcu; |
210 | struct timer_list timer; | |
8ef2a9a5 | 211 | struct br_ip addr; |
ff0fd34e | 212 | bool host_joined; |
eb1d1641 HX |
213 | }; |
214 | ||
215 | struct net_bridge_mdb_htable | |
216 | { | |
217 | struct hlist_head *mhash; | |
218 | struct rcu_head rcu; | |
219 | struct net_bridge_mdb_htable *old; | |
220 | u32 size; | |
221 | u32 max; | |
222 | u32 secret; | |
223 | u32 ver; | |
224 | }; | |
225 | ||
1f90c7f3 | 226 | struct net_bridge_port { |
1da177e4 LT |
227 | struct net_bridge *br; |
228 | struct net_device *dev; | |
229 | struct list_head list; | |
230 | ||
1f90c7f3 NA |
231 | unsigned long flags; |
232 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
233 | struct net_bridge_vlan_group __rcu *vlgrp; | |
234 | #endif | |
235 | ||
1da177e4 LT |
236 | /* STP */ |
237 | u8 priority; | |
238 | u8 state; | |
239 | u16 port_no; | |
240 | unsigned char topology_change_ack; | |
241 | unsigned char config_pending; | |
242 | port_id port_id; | |
243 | port_id designated_port; | |
244 | bridge_id designated_root; | |
245 | bridge_id designated_bridge; | |
246 | u32 path_cost; | |
247 | u32 designated_cost; | |
0c03150e | 248 | unsigned long designated_age; |
1da177e4 LT |
249 | |
250 | struct timer_list forward_delay_timer; | |
251 | struct timer_list hold_timer; | |
252 | struct timer_list message_age_timer; | |
253 | struct kobject kobj; | |
254 | struct rcu_head rcu; | |
3982d3d2 | 255 | |
eb1d1641 | 256 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
90010b36 | 257 | struct bridge_mcast_own_query ip4_own_query; |
cc0fdd80 | 258 | #if IS_ENABLED(CONFIG_IPV6) |
90010b36 | 259 | struct bridge_mcast_own_query ip6_own_query; |
cc0fdd80 | 260 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
eb1d1641 | 261 | unsigned char multicast_router; |
1080ab95 | 262 | struct bridge_mcast_stats __percpu *mcast_stats; |
eb1d1641 | 263 | struct timer_list multicast_router_timer; |
eb1d1641 HX |
264 | struct hlist_head mglist; |
265 | struct hlist_node rlist; | |
266 | #endif | |
e0f43752 SA |
267 | |
268 | #ifdef CONFIG_SYSFS | |
269 | char sysfs_name[IFNAMSIZ]; | |
270 | #endif | |
91d2c34a HX |
271 | |
272 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
273 | struct netpoll *np; | |
274 | #endif | |
6bc506b4 IS |
275 | #ifdef CONFIG_NET_SWITCHDEV |
276 | int offload_fwd_mark; | |
277 | #endif | |
5af48b59 | 278 | u16 group_fwd_mask; |
1da177e4 LT |
279 | }; |
280 | ||
e028e4b8 | 281 | #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) |
f3a6ddf1 | 282 | #define br_promisc_port(p) ((p)->flags & BR_PROMISC) |
e028e4b8 | 283 | |
f350a0a8 JP |
284 | #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) |
285 | ||
b5ed54e9 | 286 | static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) |
287 | { | |
716ec052 | 288 | return rcu_dereference(dev->rx_handler_data); |
b5ed54e9 | 289 | } |
290 | ||
1fb1754a | 291 | static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) |
b5ed54e9 | 292 | { |
ec1e5610 ED |
293 | return br_port_exists(dev) ? |
294 | rtnl_dereference(dev->rx_handler_data) : NULL; | |
b5ed54e9 | 295 | } |
296 | ||
0baa10ff AS |
297 | static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) |
298 | { | |
299 | return br_port_exists(dev) ? | |
300 | rcu_dereference_rtnl(dev->rx_handler_data) : NULL; | |
301 | } | |
302 | ||
1f90c7f3 | 303 | struct net_bridge { |
1da177e4 | 304 | spinlock_t lock; |
1f90c7f3 | 305 | spinlock_t hash_lock; |
1da177e4 LT |
306 | struct list_head port_list; |
307 | struct net_device *dev; | |
8f84985f | 308 | struct pcpu_sw_netstats __percpu *stats; |
1f90c7f3 NA |
309 | /* These fields are accessed on each packet */ |
310 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
311 | u8 vlan_enabled; | |
312 | u8 vlan_stats_enabled; | |
313 | __be16 vlan_proto; | |
314 | u16 default_pvid; | |
315 | struct net_bridge_vlan_group __rcu *vlgrp; | |
316 | #endif | |
317 | ||
1da177e4 | 318 | struct hlist_head hash[BR_HASH_SIZE]; |
34666d46 | 319 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
efb6de9b BT |
320 | union { |
321 | struct rtable fake_rtable; | |
322 | struct rt6_info fake_rt6_info; | |
323 | }; | |
4df53d8b PM |
324 | bool nf_call_iptables; |
325 | bool nf_call_ip6tables; | |
326 | bool nf_call_arptables; | |
4adf0af6 | 327 | #endif |
515853cc | 328 | u16 group_fwd_mask; |
f2808d22 | 329 | u16 group_fwd_mask_required; |
515853cc | 330 | |
1da177e4 LT |
331 | /* STP */ |
332 | bridge_id designated_root; | |
333 | bridge_id bridge_id; | |
334 | u32 root_path_cost; | |
1f90c7f3 NA |
335 | unsigned char topology_change; |
336 | unsigned char topology_change_detected; | |
337 | u16 root_port; | |
1da177e4 LT |
338 | unsigned long max_age; |
339 | unsigned long hello_time; | |
340 | unsigned long forward_delay; | |
1da177e4 | 341 | unsigned long ageing_time; |
34d8acd8 | 342 | unsigned long bridge_max_age; |
1da177e4 LT |
343 | unsigned long bridge_hello_time; |
344 | unsigned long bridge_forward_delay; | |
34d8acd8 | 345 | unsigned long bridge_ageing_time; |
1da177e4 | 346 | |
fda93d92 | 347 | u8 group_addr[ETH_ALEN]; |
204177f3 | 348 | bool group_addr_set; |
9cde0708 SH |
349 | |
350 | enum { | |
351 | BR_NO_STP, /* no spanning tree */ | |
352 | BR_KERNEL_STP, /* old STP in kernel */ | |
353 | BR_USER_STP, /* new RSTP in userspace */ | |
354 | } stp_enabled; | |
355 | ||
eb1d1641 HX |
356 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
357 | unsigned char multicast_router; | |
358 | ||
359 | u8 multicast_disabled:1; | |
c5c23260 | 360 | u8 multicast_querier:1; |
1c8ad5bf | 361 | u8 multicast_query_use_ifaddr:1; |
0888d5f3 | 362 | u8 has_ipv6_addr:1; |
1080ab95 | 363 | u8 multicast_stats_enabled:1; |
eb1d1641 HX |
364 | |
365 | u32 hash_elasticity; | |
366 | u32 hash_max; | |
367 | ||
368 | u32 multicast_last_member_count; | |
eb1d1641 HX |
369 | u32 multicast_startup_query_count; |
370 | ||
5e923585 NA |
371 | u8 multicast_igmp_version; |
372 | ||
eb1d1641 HX |
373 | unsigned long multicast_last_member_interval; |
374 | unsigned long multicast_membership_interval; | |
375 | unsigned long multicast_querier_interval; | |
376 | unsigned long multicast_query_interval; | |
377 | unsigned long multicast_query_response_interval; | |
378 | unsigned long multicast_startup_query_interval; | |
379 | ||
380 | spinlock_t multicast_lock; | |
e8051688 | 381 | struct net_bridge_mdb_htable __rcu *mdb; |
eb1d1641 | 382 | struct hlist_head router_list; |
eb1d1641 HX |
383 | |
384 | struct timer_list multicast_router_timer; | |
90010b36 LL |
385 | struct bridge_mcast_other_query ip4_other_query; |
386 | struct bridge_mcast_own_query ip4_own_query; | |
dc4eb53a | 387 | struct bridge_mcast_querier ip4_querier; |
1080ab95 | 388 | struct bridge_mcast_stats __percpu *mcast_stats; |
cc0fdd80 | 389 | #if IS_ENABLED(CONFIG_IPV6) |
90010b36 LL |
390 | struct bridge_mcast_other_query ip6_other_query; |
391 | struct bridge_mcast_own_query ip6_own_query; | |
dc4eb53a | 392 | struct bridge_mcast_querier ip6_querier; |
aa2ae3e7 | 393 | u8 multicast_mld_version; |
cc0fdd80 | 394 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
eb1d1641 HX |
395 | #endif |
396 | ||
1da177e4 LT |
397 | struct timer_list hello_timer; |
398 | struct timer_list tcn_timer; | |
399 | struct timer_list topology_change_timer; | |
f7cdee8a | 400 | struct delayed_work gc_work; |
43b98c4a | 401 | struct kobject *ifobj; |
e028e4b8 | 402 | u32 auto_cnt; |
6bc506b4 IS |
403 | |
404 | #ifdef CONFIG_NET_SWITCHDEV | |
405 | int offload_fwd_mark; | |
406 | #endif | |
821f1b21 | 407 | bool neigh_suppress_enabled; |
1da177e4 LT |
408 | }; |
409 | ||
68b7c895 HX |
410 | struct br_input_skb_cb { |
411 | struct net_device *brdev; | |
93fdd47e | 412 | |
32dec5dd | 413 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
eb1d1641 HX |
414 | int igmp; |
415 | int mrouters_only; | |
32dec5dd | 416 | #endif |
93fdd47e | 417 | |
842a9ae0 | 418 | bool proxyarp_replied; |
93fdd47e | 419 | |
20adfa1a VY |
420 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
421 | bool vlan_filtered; | |
422 | #endif | |
6bc506b4 IS |
423 | |
424 | #ifdef CONFIG_NET_SWITCHDEV | |
425 | int offload_fwd_mark; | |
426 | #endif | |
68b7c895 HX |
427 | }; |
428 | ||
429 | #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) | |
430 | ||
32dec5dd YH |
431 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
432 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) | |
433 | #else | |
434 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) | |
435 | #endif | |
436 | ||
28a16c97 | 437 | #define br_printk(level, br, format, args...) \ |
438 | printk(level "%s: " format, (br)->dev->name, ##args) | |
439 | ||
440 | #define br_err(__br, format, args...) \ | |
441 | br_printk(KERN_ERR, __br, format, ##args) | |
442 | #define br_warn(__br, format, args...) \ | |
443 | br_printk(KERN_WARNING, __br, format, ##args) | |
444 | #define br_notice(__br, format, args...) \ | |
445 | br_printk(KERN_NOTICE, __br, format, ##args) | |
446 | #define br_info(__br, format, args...) \ | |
447 | br_printk(KERN_INFO, __br, format, ##args) | |
448 | ||
449 | #define br_debug(br, format, args...) \ | |
450 | pr_debug("%s: " format, (br)->dev->name, ##args) | |
451 | ||
1da177e4 LT |
452 | /* called under bridge lock */ |
453 | static inline int br_is_root_bridge(const struct net_bridge *br) | |
454 | { | |
455 | return !memcmp(&br->bridge_id, &br->designated_root, 8); | |
456 | } | |
457 | ||
2594e906 NA |
458 | /* check if a VLAN entry is global */ |
459 | static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) | |
460 | { | |
461 | return v->flags & BRIDGE_VLAN_INFO_MASTER; | |
462 | } | |
463 | ||
464 | /* check if a VLAN entry is used by the bridge */ | |
465 | static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) | |
466 | { | |
467 | return v->flags & BRIDGE_VLAN_INFO_BRENTRY; | |
468 | } | |
469 | ||
6be144f6 | 470 | /* check if we should use the vlan entry, returns false if it's only context */ |
2594e906 NA |
471 | static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) |
472 | { | |
473 | if (br_vlan_is_master(v)) { | |
474 | if (br_vlan_is_brentry(v)) | |
475 | return true; | |
476 | else | |
477 | return false; | |
478 | } | |
479 | ||
480 | return true; | |
481 | } | |
482 | ||
1da177e4 | 483 | /* br_device.c */ |
348662a1 JP |
484 | void br_dev_setup(struct net_device *dev); |
485 | void br_dev_delete(struct net_device *dev, struct list_head *list); | |
486 | netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); | |
cfb478da | 487 | #ifdef CONFIG_NET_POLL_CONTROLLER |
91d2c34a HX |
488 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
489 | struct sk_buff *skb) | |
490 | { | |
491 | struct netpoll *np = p->np; | |
492 | ||
493 | if (np) | |
494 | netpoll_send_skb(np, skb); | |
495 | } | |
496 | ||
a8779ec1 | 497 | int br_netpoll_enable(struct net_bridge_port *p); |
348662a1 | 498 | void br_netpoll_disable(struct net_bridge_port *p); |
cfb478da | 499 | #else |
9f70b0fc | 500 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
91d2c34a HX |
501 | struct sk_buff *skb) |
502 | { | |
503 | } | |
cfb478da | 504 | |
a8779ec1 | 505 | static inline int br_netpoll_enable(struct net_bridge_port *p) |
91d2c34a HX |
506 | { |
507 | return 0; | |
508 | } | |
509 | ||
510 | static inline void br_netpoll_disable(struct net_bridge_port *p) | |
511 | { | |
512 | } | |
cfb478da | 513 | #endif |
1da177e4 LT |
514 | |
515 | /* br_fdb.c */ | |
348662a1 JP |
516 | int br_fdb_init(void); |
517 | void br_fdb_fini(void); | |
518 | void br_fdb_flush(struct net_bridge *br); | |
424bb9c9 TM |
519 | void br_fdb_find_delete_local(struct net_bridge *br, |
520 | const struct net_bridge_port *p, | |
521 | const unsigned char *addr, u16 vid); | |
348662a1 JP |
522 | void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); |
523 | void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); | |
f7cdee8a | 524 | void br_fdb_cleanup(struct work_struct *work); |
348662a1 | 525 | void br_fdb_delete_by_port(struct net_bridge *br, |
1ea2d020 | 526 | const struct net_bridge_port *p, u16 vid, int do_all); |
bfd0aeac NA |
527 | struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, |
528 | const unsigned char *addr, | |
529 | __u16 vid); | |
348662a1 JP |
530 | int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); |
531 | int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, | |
532 | unsigned long off); | |
533 | int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, | |
534 | const unsigned char *addr, u16 vid); | |
535 | void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, | |
a5642ab4 | 536 | const unsigned char *addr, u16 vid, bool added_by_user); |
348662a1 JP |
537 | |
538 | int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], | |
f6f6424b | 539 | struct net_device *dev, const unsigned char *addr, u16 vid); |
348662a1 | 540 | int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, |
f6f6424b | 541 | const unsigned char *addr, u16 vid, u16 nlh_flags); |
348662a1 | 542 | int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, |
d297653d | 543 | struct net_device *dev, struct net_device *fdev, int *idx); |
8db24af7 VY |
544 | int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); |
545 | void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); | |
3aeb6617 JP |
546 | int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, |
547 | const unsigned char *addr, u16 vid); | |
548 | int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, | |
549 | const unsigned char *addr, u16 vid); | |
9fe8bcec AS |
550 | void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, |
551 | const unsigned char *addr, u16 vid); | |
1da177e4 LT |
552 | |
553 | /* br_forward.c */ | |
8addd5e7 NA |
554 | enum br_pkt_type { |
555 | BR_PKT_UNICAST, | |
556 | BR_PKT_MULTICAST, | |
557 | BR_PKT_BROADCAST | |
558 | }; | |
0c4b51f0 | 559 | int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); |
b35c5f63 | 560 | void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, |
37b090e6 | 561 | bool local_rcv, bool local_orig); |
0c4b51f0 | 562 | int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); |
37b090e6 | 563 | void br_flood(struct net_bridge *br, struct sk_buff *skb, |
8addd5e7 | 564 | enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); |
1da177e4 LT |
565 | |
566 | /* br_if.c */ | |
348662a1 JP |
567 | void br_port_carrier_check(struct net_bridge_port *p); |
568 | int br_add_bridge(struct net *net, const char *name); | |
569 | int br_del_bridge(struct net *net, const char *name); | |
ca752be0 DA |
570 | int br_add_if(struct net_bridge *br, struct net_device *dev, |
571 | struct netlink_ext_ack *extack); | |
348662a1 JP |
572 | int br_del_if(struct net_bridge *br, struct net_device *dev); |
573 | int br_min_mtu(const struct net_bridge *br); | |
574 | netdev_features_t br_features_recompute(struct net_bridge *br, | |
575 | netdev_features_t features); | |
e028e4b8 | 576 | void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); |
2796d0c6 | 577 | void br_manage_promisc(struct net_bridge *br); |
1da177e4 LT |
578 | |
579 | /* br_input.c */ | |
0c4b51f0 | 580 | int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); |
348662a1 | 581 | rx_handler_result_t br_handle_frame(struct sk_buff **pskb); |
1da177e4 | 582 | |
859828c0 JP |
583 | static inline bool br_rx_handler_check_rcu(const struct net_device *dev) |
584 | { | |
585 | return rcu_dereference(dev->rx_handler) == br_handle_frame; | |
586 | } | |
587 | ||
588 | static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) | |
589 | { | |
590 | return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; | |
591 | } | |
592 | ||
1da177e4 | 593 | /* br_ioctl.c */ |
348662a1 JP |
594 | int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); |
595 | int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, | |
596 | void __user *arg); | |
1da177e4 | 597 | |
eb1d1641 HX |
598 | /* br_multicast.c */ |
599 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING | |
2ce297fc | 600 | extern unsigned int br_mdb_rehash_seq; |
348662a1 | 601 | int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, |
394efd19 | 602 | struct sk_buff *skb, u16 vid); |
348662a1 JP |
603 | struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, |
604 | struct sk_buff *skb, u16 vid); | |
1080ab95 | 605 | int br_multicast_add_port(struct net_bridge_port *port); |
348662a1 JP |
606 | void br_multicast_del_port(struct net_bridge_port *port); |
607 | void br_multicast_enable_port(struct net_bridge_port *port); | |
608 | void br_multicast_disable_port(struct net_bridge_port *port); | |
609 | void br_multicast_init(struct net_bridge *br); | |
610 | void br_multicast_open(struct net_bridge *br); | |
611 | void br_multicast_stop(struct net_bridge *br); | |
e10177ab | 612 | void br_multicast_dev_del(struct net_bridge *br); |
37b090e6 NA |
613 | void br_multicast_flood(struct net_bridge_mdb_entry *mdst, |
614 | struct sk_buff *skb, bool local_rcv, bool local_orig); | |
348662a1 JP |
615 | int br_multicast_set_router(struct net_bridge *br, unsigned long val); |
616 | int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); | |
617 | int br_multicast_toggle(struct net_bridge *br, unsigned long val); | |
618 | int br_multicast_set_querier(struct net_bridge *br, unsigned long val); | |
619 | int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); | |
5e923585 | 620 | int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); |
aa2ae3e7 NA |
621 | #if IS_ENABLED(CONFIG_IPV6) |
622 | int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); | |
623 | #endif | |
348662a1 JP |
624 | struct net_bridge_mdb_entry * |
625 | br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); | |
626 | struct net_bridge_mdb_entry * | |
627 | br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, | |
628 | struct br_ip *group); | |
629 | void br_multicast_free_pg(struct rcu_head *head); | |
630 | struct net_bridge_port_group * | |
631 | br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, | |
632 | struct net_bridge_port_group __rcu *next, | |
6db6f0ea | 633 | unsigned char flags, const unsigned char *src); |
348662a1 JP |
634 | void br_mdb_init(void); |
635 | void br_mdb_uninit(void); | |
45ebcce5 ER |
636 | void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, |
637 | struct br_ip *group, int type, u8 flags); | |
949f1e39 SA |
638 | void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, |
639 | int type); | |
1080ab95 | 640 | void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, |
a65056ec | 641 | const struct sk_buff *skb, u8 type, u8 dir); |
1080ab95 | 642 | int br_multicast_init_stats(struct net_bridge *br); |
b6fe0440 | 643 | void br_multicast_uninit_stats(struct net_bridge *br); |
1080ab95 NA |
644 | void br_multicast_get_stats(const struct net_bridge *br, |
645 | const struct net_bridge_port *p, | |
646 | struct br_mcast_stats *dest); | |
85b35269 | 647 | |
cfd56754 CW |
648 | #define mlock_dereference(X, br) \ |
649 | rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) | |
650 | ||
85b35269 SS |
651 | static inline bool br_multicast_is_router(struct net_bridge *br) |
652 | { | |
653 | return br->multicast_router == 2 || | |
654 | (br->multicast_router == 1 && | |
655 | timer_pending(&br->multicast_router_timer)); | |
656 | } | |
b00589af | 657 | |
cc0fdd80 LL |
658 | static inline bool |
659 | __br_multicast_querier_exists(struct net_bridge *br, | |
0888d5f3 | 660 | struct bridge_mcast_other_query *querier, |
661 | const bool is_ipv6) | |
b00589af | 662 | { |
0888d5f3 | 663 | bool own_querier_enabled; |
664 | ||
665 | if (br->multicast_querier) { | |
666 | if (is_ipv6 && !br->has_ipv6_addr) | |
667 | own_querier_enabled = false; | |
668 | else | |
669 | own_querier_enabled = true; | |
670 | } else { | |
671 | own_querier_enabled = false; | |
672 | } | |
673 | ||
cc0fdd80 | 674 | return time_is_before_jiffies(querier->delay_time) && |
0888d5f3 | 675 | (own_querier_enabled || timer_pending(&querier->timer)); |
cc0fdd80 LL |
676 | } |
677 | ||
678 | static inline bool br_multicast_querier_exists(struct net_bridge *br, | |
679 | struct ethhdr *eth) | |
680 | { | |
681 | switch (eth->h_proto) { | |
682 | case (htons(ETH_P_IP)): | |
0888d5f3 | 683 | return __br_multicast_querier_exists(br, |
684 | &br->ip4_other_query, false); | |
cc0fdd80 LL |
685 | #if IS_ENABLED(CONFIG_IPV6) |
686 | case (htons(ETH_P_IPV6)): | |
0888d5f3 | 687 | return __br_multicast_querier_exists(br, |
688 | &br->ip6_other_query, true); | |
cc0fdd80 LL |
689 | #endif |
690 | default: | |
691 | return false; | |
692 | } | |
b00589af | 693 | } |
1080ab95 NA |
694 | |
695 | static inline int br_multicast_igmp_type(const struct sk_buff *skb) | |
696 | { | |
697 | return BR_INPUT_SKB_CB(skb)->igmp; | |
698 | } | |
eb1d1641 HX |
699 | #else |
700 | static inline int br_multicast_rcv(struct net_bridge *br, | |
701 | struct net_bridge_port *port, | |
06499098 VY |
702 | struct sk_buff *skb, |
703 | u16 vid) | |
eb1d1641 HX |
704 | { |
705 | return 0; | |
706 | } | |
707 | ||
708 | static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, | |
fbca58a2 | 709 | struct sk_buff *skb, u16 vid) |
eb1d1641 HX |
710 | { |
711 | return NULL; | |
712 | } | |
713 | ||
1080ab95 | 714 | static inline int br_multicast_add_port(struct net_bridge_port *port) |
eb1d1641 | 715 | { |
1080ab95 | 716 | return 0; |
eb1d1641 HX |
717 | } |
718 | ||
719 | static inline void br_multicast_del_port(struct net_bridge_port *port) | |
720 | { | |
721 | } | |
722 | ||
723 | static inline void br_multicast_enable_port(struct net_bridge_port *port) | |
724 | { | |
725 | } | |
726 | ||
727 | static inline void br_multicast_disable_port(struct net_bridge_port *port) | |
728 | { | |
729 | } | |
730 | ||
731 | static inline void br_multicast_init(struct net_bridge *br) | |
732 | { | |
733 | } | |
734 | ||
735 | static inline void br_multicast_open(struct net_bridge *br) | |
736 | { | |
737 | } | |
738 | ||
739 | static inline void br_multicast_stop(struct net_bridge *br) | |
740 | { | |
741 | } | |
5cb5e947 | 742 | |
a7ce45a7 NA |
743 | static inline void br_multicast_dev_del(struct net_bridge *br) |
744 | { | |
745 | } | |
746 | ||
37b090e6 NA |
747 | static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, |
748 | struct sk_buff *skb, | |
749 | bool local_rcv, bool local_orig) | |
5cb5e947 HX |
750 | { |
751 | } | |
752 | ||
eb1d1641 HX |
753 | static inline bool br_multicast_is_router(struct net_bridge *br) |
754 | { | |
85b35269 | 755 | return 0; |
eb1d1641 | 756 | } |
37b090e6 | 757 | |
cc0fdd80 LL |
758 | static inline bool br_multicast_querier_exists(struct net_bridge *br, |
759 | struct ethhdr *eth) | |
b00589af LL |
760 | { |
761 | return false; | |
762 | } | |
37b090e6 | 763 | |
fdb184d1 RR |
764 | static inline void br_mdb_init(void) |
765 | { | |
766 | } | |
37b090e6 | 767 | |
fdb184d1 RR |
768 | static inline void br_mdb_uninit(void) |
769 | { | |
770 | } | |
1080ab95 NA |
771 | |
772 | static inline void br_multicast_count(struct net_bridge *br, | |
773 | const struct net_bridge_port *p, | |
a65056ec NA |
774 | const struct sk_buff *skb, |
775 | u8 type, u8 dir) | |
1080ab95 NA |
776 | { |
777 | } | |
778 | ||
779 | static inline int br_multicast_init_stats(struct net_bridge *br) | |
780 | { | |
781 | return 0; | |
782 | } | |
783 | ||
b6fe0440 IS |
784 | static inline void br_multicast_uninit_stats(struct net_bridge *br) |
785 | { | |
786 | } | |
787 | ||
1080ab95 NA |
788 | static inline int br_multicast_igmp_type(const struct sk_buff *skb) |
789 | { | |
790 | return 0; | |
791 | } | |
85b35269 | 792 | #endif |
eb1d1641 | 793 | |
243a2e63 VY |
794 | /* br_vlan.c */ |
795 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
77751ee8 NA |
796 | bool br_allowed_ingress(const struct net_bridge *br, |
797 | struct net_bridge_vlan_group *vg, struct sk_buff *skb, | |
798 | u16 *vid); | |
799 | bool br_allowed_egress(struct net_bridge_vlan_group *vg, | |
348662a1 | 800 | const struct sk_buff *skb); |
e0d7968a | 801 | bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); |
348662a1 | 802 | struct sk_buff *br_handle_vlan(struct net_bridge *br, |
11538d03 | 803 | const struct net_bridge_port *port, |
2594e906 | 804 | struct net_bridge_vlan_group *vg, |
348662a1 | 805 | struct sk_buff *skb); |
f418af63 NA |
806 | int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, |
807 | bool *changed); | |
348662a1 JP |
808 | int br_vlan_delete(struct net_bridge *br, u16 vid); |
809 | void br_vlan_flush(struct net_bridge *br); | |
2594e906 | 810 | struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); |
204177f3 | 811 | void br_recalculate_fwd_mask(struct net_bridge *br); |
a7854037 | 812 | int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
348662a1 | 813 | int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
d2d427b3 | 814 | int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); |
204177f3 | 815 | int br_vlan_set_proto(struct net_bridge *br, unsigned long val); |
6dada9b1 | 816 | int br_vlan_set_stats(struct net_bridge *br, unsigned long val); |
5be5a2df | 817 | int br_vlan_init(struct net_bridge *br); |
96a20d9d | 818 | int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); |
0f963b75 | 819 | int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid); |
f418af63 NA |
820 | int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, |
821 | bool *changed); | |
348662a1 JP |
822 | int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); |
823 | void nbp_vlan_flush(struct net_bridge_port *port); | |
5be5a2df | 824 | int nbp_vlan_init(struct net_bridge_port *port); |
2594e906 | 825 | int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); |
a60c0903 NA |
826 | void br_vlan_get_stats(const struct net_bridge_vlan *v, |
827 | struct br_vlan_stats *stats); | |
a37b85c9 | 828 | |
2594e906 NA |
829 | static inline struct net_bridge_vlan_group *br_vlan_group( |
830 | const struct net_bridge *br) | |
a37b85c9 | 831 | { |
907b1e6e | 832 | return rtnl_dereference(br->vlgrp); |
a37b85c9 VY |
833 | } |
834 | ||
2594e906 NA |
835 | static inline struct net_bridge_vlan_group *nbp_vlan_group( |
836 | const struct net_bridge_port *p) | |
a37b85c9 | 837 | { |
907b1e6e NA |
838 | return rtnl_dereference(p->vlgrp); |
839 | } | |
840 | ||
841 | static inline struct net_bridge_vlan_group *br_vlan_group_rcu( | |
842 | const struct net_bridge *br) | |
843 | { | |
844 | return rcu_dereference(br->vlgrp); | |
845 | } | |
846 | ||
847 | static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( | |
848 | const struct net_bridge_port *p) | |
849 | { | |
850 | return rcu_dereference(p->vlgrp); | |
a37b85c9 VY |
851 | } |
852 | ||
853 | /* Since bridge now depends on 8021Q module, but the time bridge sees the | |
854 | * skb, the vlan tag will always be present if the frame was tagged. | |
855 | */ | |
856 | static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) | |
857 | { | |
858 | int err = 0; | |
859 | ||
2594e906 | 860 | if (skb_vlan_tag_present(skb)) { |
df8a39de | 861 | *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; |
2594e906 | 862 | } else { |
a37b85c9 VY |
863 | *vid = 0; |
864 | err = -EINVAL; | |
865 | } | |
866 | ||
867 | return err; | |
868 | } | |
78851988 | 869 | |
77751ee8 | 870 | static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) |
2594e906 | 871 | { |
77751ee8 | 872 | if (!vg) |
2594e906 NA |
873 | return 0; |
874 | ||
875 | smp_rmb(); | |
77751ee8 | 876 | return vg->pvid; |
78851988 VY |
877 | } |
878 | ||
243a2e63 | 879 | #else |
77751ee8 NA |
880 | static inline bool br_allowed_ingress(const struct net_bridge *br, |
881 | struct net_bridge_vlan_group *vg, | |
78851988 VY |
882 | struct sk_buff *skb, |
883 | u16 *vid) | |
a37b85c9 VY |
884 | { |
885 | return true; | |
886 | } | |
887 | ||
2594e906 | 888 | static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, |
85f46c6b VY |
889 | const struct sk_buff *skb) |
890 | { | |
891 | return true; | |
892 | } | |
893 | ||
e0d7968a TM |
894 | static inline bool br_should_learn(struct net_bridge_port *p, |
895 | struct sk_buff *skb, u16 *vid) | |
896 | { | |
897 | return true; | |
898 | } | |
899 | ||
78851988 | 900 | static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, |
11538d03 | 901 | const struct net_bridge_port *port, |
2594e906 | 902 | struct net_bridge_vlan_group *vg, |
78851988 VY |
903 | struct sk_buff *skb) |
904 | { | |
905 | return skb; | |
906 | } | |
907 | ||
f418af63 NA |
908 | static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, |
909 | bool *changed) | |
243a2e63 | 910 | { |
f418af63 | 911 | *changed = false; |
243a2e63 VY |
912 | return -EOPNOTSUPP; |
913 | } | |
914 | ||
915 | static inline int br_vlan_delete(struct net_bridge *br, u16 vid) | |
916 | { | |
917 | return -EOPNOTSUPP; | |
918 | } | |
919 | ||
920 | static inline void br_vlan_flush(struct net_bridge *br) | |
921 | { | |
922 | } | |
923 | ||
204177f3 TM |
924 | static inline void br_recalculate_fwd_mask(struct net_bridge *br) |
925 | { | |
926 | } | |
927 | ||
5be5a2df | 928 | static inline int br_vlan_init(struct net_bridge *br) |
8580e211 | 929 | { |
5be5a2df | 930 | return 0; |
8580e211 TM |
931 | } |
932 | ||
f418af63 NA |
933 | static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, |
934 | bool *changed) | |
243a2e63 | 935 | { |
f418af63 | 936 | *changed = false; |
243a2e63 VY |
937 | return -EOPNOTSUPP; |
938 | } | |
939 | ||
940 | static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) | |
941 | { | |
942 | return -EOPNOTSUPP; | |
943 | } | |
944 | ||
945 | static inline void nbp_vlan_flush(struct net_bridge_port *port) | |
946 | { | |
947 | } | |
948 | ||
2594e906 NA |
949 | static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, |
950 | u16 vid) | |
a37b85c9 VY |
951 | { |
952 | return NULL; | |
953 | } | |
954 | ||
2594e906 | 955 | static inline int nbp_vlan_init(struct net_bridge_port *port) |
bc9a25d2 | 956 | { |
2594e906 | 957 | return 0; |
bc9a25d2 VY |
958 | } |
959 | ||
2594e906 | 960 | static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) |
5be5a2df VY |
961 | { |
962 | return 0; | |
963 | } | |
964 | ||
77751ee8 | 965 | static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) |
78851988 | 966 | { |
3df6bf45 | 967 | return 0; |
78851988 | 968 | } |
2796d0c6 | 969 | |
a7854037 NA |
970 | static inline int __br_vlan_filter_toggle(struct net_bridge *br, |
971 | unsigned long val) | |
972 | { | |
973 | return -EOPNOTSUPP; | |
974 | } | |
2594e906 NA |
975 | |
976 | static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, | |
977 | u32 filter_mask) | |
978 | { | |
979 | return 0; | |
980 | } | |
981 | ||
982 | static inline struct net_bridge_vlan_group *br_vlan_group( | |
983 | const struct net_bridge *br) | |
984 | { | |
985 | return NULL; | |
986 | } | |
987 | ||
988 | static inline struct net_bridge_vlan_group *nbp_vlan_group( | |
989 | const struct net_bridge_port *p) | |
990 | { | |
991 | return NULL; | |
992 | } | |
907b1e6e NA |
993 | |
994 | static inline struct net_bridge_vlan_group *br_vlan_group_rcu( | |
995 | const struct net_bridge *br) | |
996 | { | |
997 | return NULL; | |
998 | } | |
999 | ||
1000 | static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( | |
1001 | const struct net_bridge_port *p) | |
1002 | { | |
1003 | return NULL; | |
1004 | } | |
a60c0903 NA |
1005 | |
1006 | static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, | |
1007 | struct br_vlan_stats *stats) | |
1008 | { | |
1009 | } | |
243a2e63 VY |
1010 | #endif |
1011 | ||
1a4ba64d PNA |
1012 | struct nf_br_ops { |
1013 | int (*br_dev_xmit_hook)(struct sk_buff *skb); | |
1014 | }; | |
1015 | extern const struct nf_br_ops __rcu *nf_br_ops; | |
1016 | ||
1da177e4 | 1017 | /* br_netfilter.c */ |
34666d46 PNA |
1018 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
1019 | int br_nf_core_init(void); | |
1020 | void br_nf_core_fini(void); | |
348662a1 | 1021 | void br_netfilter_rtable_init(struct net_bridge *); |
c0909713 | 1022 | #else |
34666d46 PNA |
1023 | static inline int br_nf_core_init(void) { return 0; } |
1024 | static inline void br_nf_core_fini(void) {} | |
4adf0af6 | 1025 | #define br_netfilter_rtable_init(x) |
c0909713 | 1026 | #endif |
1da177e4 LT |
1027 | |
1028 | /* br_stp.c */ | |
775dd692 | 1029 | void br_set_state(struct net_bridge_port *p, unsigned int state); |
348662a1 JP |
1030 | struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); |
1031 | void br_init_port(struct net_bridge_port *p); | |
1032 | void br_become_designated_port(struct net_bridge_port *p); | |
1da177e4 | 1033 | |
348662a1 JP |
1034 | void __br_set_forward_delay(struct net_bridge *br, unsigned long t); |
1035 | int br_set_forward_delay(struct net_bridge *br, unsigned long x); | |
1036 | int br_set_hello_time(struct net_bridge *br, unsigned long x); | |
1037 | int br_set_max_age(struct net_bridge *br, unsigned long x); | |
82dd4332 | 1038 | int __set_ageing_time(struct net_device *dev, unsigned long t); |
9e0b27fe | 1039 | int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); |
14f98f25 | 1040 | |
1041 | ||
1da177e4 | 1042 | /* br_stp_if.c */ |
348662a1 JP |
1043 | void br_stp_enable_bridge(struct net_bridge *br); |
1044 | void br_stp_disable_bridge(struct net_bridge *br); | |
1045 | void br_stp_set_enabled(struct net_bridge *br, unsigned long val); | |
1046 | void br_stp_enable_port(struct net_bridge_port *p); | |
1047 | void br_stp_disable_port(struct net_bridge_port *p); | |
1048 | bool br_stp_recalculate_bridge_id(struct net_bridge *br); | |
1049 | void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); | |
1050 | void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); | |
1051 | int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); | |
1052 | int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); | |
1053 | ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); | |
1da177e4 LT |
1054 | |
1055 | /* br_stp_bpdu.c */ | |
7c85fbf0 | 1056 | struct stp_proto; |
348662a1 JP |
1057 | void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, |
1058 | struct net_device *dev); | |
1da177e4 LT |
1059 | |
1060 | /* br_stp_timer.c */ | |
348662a1 JP |
1061 | void br_stp_timer_init(struct net_bridge *br); |
1062 | void br_stp_port_timer_init(struct net_bridge_port *p); | |
1063 | unsigned long br_timer_value(const struct timer_list *timer); | |
1da177e4 LT |
1064 | |
1065 | /* br.c */ | |
e6373c4c | 1066 | #if IS_ENABLED(CONFIG_ATM_LANE) |
da678292 MM |
1067 | extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); |
1068 | #endif | |
1da177e4 | 1069 | |
11dc1f36 | 1070 | /* br_netlink.c */ |
149ddd83 | 1071 | extern struct rtnl_link_ops br_link_ops; |
348662a1 JP |
1072 | int br_netlink_init(void); |
1073 | void br_netlink_fini(void); | |
92899063 NA |
1074 | void br_ifinfo_notify(int event, const struct net_bridge *br, |
1075 | const struct net_bridge_port *port); | |
add511b3 RP |
1076 | int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); |
1077 | int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); | |
348662a1 | 1078 | int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, |
46c264da | 1079 | u32 filter_mask, int nlflags); |
11dc1f36 | 1080 | |
1da177e4 LT |
1081 | #ifdef CONFIG_SYSFS |
1082 | /* br_sysfs_if.c */ | |
52cf25d0 | 1083 | extern const struct sysfs_ops brport_sysfs_ops; |
348662a1 JP |
1084 | int br_sysfs_addif(struct net_bridge_port *p); |
1085 | int br_sysfs_renameif(struct net_bridge_port *p); | |
1da177e4 LT |
1086 | |
1087 | /* br_sysfs_br.c */ | |
348662a1 JP |
1088 | int br_sysfs_addbr(struct net_device *dev); |
1089 | void br_sysfs_delbr(struct net_device *dev); | |
1da177e4 LT |
1090 | |
1091 | #else | |
1092 | ||
0cb2bbbe LJ |
1093 | static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } |
1094 | static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } | |
1095 | static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } | |
1096 | static inline void br_sysfs_delbr(struct net_device *dev) { return; } | |
1da177e4 LT |
1097 | #endif /* CONFIG_SYSFS */ |
1098 | ||
6bc506b4 IS |
1099 | /* br_switchdev.c */ |
1100 | #ifdef CONFIG_NET_SWITCHDEV | |
1101 | int nbp_switchdev_mark_set(struct net_bridge_port *p); | |
1102 | void nbp_switchdev_frame_mark(const struct net_bridge_port *p, | |
1103 | struct sk_buff *skb); | |
1104 | bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, | |
1105 | const struct sk_buff *skb); | |
3922285d AS |
1106 | int br_switchdev_set_port_flag(struct net_bridge_port *p, |
1107 | unsigned long flags, | |
1108 | unsigned long mask); | |
6b26b51b AS |
1109 | void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, |
1110 | int type); | |
f1c2eddf IS |
1111 | |
1112 | static inline void br_switchdev_frame_unmark(struct sk_buff *skb) | |
1113 | { | |
1114 | skb->offload_fwd_mark = 0; | |
1115 | } | |
6bc506b4 IS |
1116 | #else |
1117 | static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) | |
1118 | { | |
1119 | return 0; | |
1120 | } | |
1121 | ||
1122 | static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, | |
1123 | struct sk_buff *skb) | |
1124 | { | |
1125 | } | |
1126 | ||
1127 | static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, | |
1128 | const struct sk_buff *skb) | |
1129 | { | |
1130 | return true; | |
1131 | } | |
3922285d AS |
1132 | |
1133 | static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, | |
1134 | unsigned long flags, | |
1135 | unsigned long mask) | |
1136 | { | |
1137 | return 0; | |
1138 | } | |
6b26b51b AS |
1139 | |
1140 | static inline void | |
1141 | br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) | |
1142 | { | |
1143 | } | |
f1c2eddf IS |
1144 | |
1145 | static inline void br_switchdev_frame_unmark(struct sk_buff *skb) | |
1146 | { | |
1147 | } | |
6bc506b4 IS |
1148 | #endif /* CONFIG_NET_SWITCHDEV */ |
1149 | ||
057658cb | 1150 | /* br_arp_nd_proxy.c */ |
821f1b21 | 1151 | void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); |
057658cb RP |
1152 | void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, |
1153 | u16 vid, struct net_bridge_port *p); | |
ed842fae RP |
1154 | void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, |
1155 | u16 vid, struct net_bridge_port *p, struct nd_msg *msg); | |
1156 | struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); | |
1da177e4 | 1157 | #endif |