Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * Linux ethernet bridge | |
3 | * | |
4 | * Authors: | |
5 | * Lennert Buytenhek <buytenh@gnu.org> | |
6 | * | |
1da177e4 LT |
7 | * This program is free software; you can redistribute it and/or |
8 | * modify it under the terms of the GNU General Public License | |
9 | * as published by the Free Software Foundation; either version | |
10 | * 2 of the License, or (at your option) any later version. | |
11 | */ | |
12 | ||
13 | #ifndef _BR_PRIVATE_H | |
14 | #define _BR_PRIVATE_H | |
15 | ||
16 | #include <linux/netdevice.h> | |
1da177e4 | 17 | #include <linux/if_bridge.h> |
91d2c34a | 18 | #include <linux/netpoll.h> |
406818ff | 19 | #include <linux/u64_stats_sync.h> |
4adf0af6 | 20 | #include <net/route.h> |
efb6de9b | 21 | #include <net/ip6_fib.h> |
243a2e63 | 22 | #include <linux/if_vlan.h> |
2594e906 | 23 | #include <linux/rhashtable.h> |
1da177e4 LT |
24 | |
25 | #define BR_HASH_BITS 8 | |
26 | #define BR_HASH_SIZE (1 << BR_HASH_BITS) | |
27 | ||
28 | #define BR_HOLD_TIME (1*HZ) | |
29 | ||
30 | #define BR_PORT_BITS 10 | |
31 | #define BR_MAX_PORTS (1<<BR_PORT_BITS) | |
32 | ||
9cde0708 SH |
33 | #define BR_VERSION "2.3" |
34 | ||
515853cc | 35 | /* Control of forwarding link local multicast */ |
36 | #define BR_GROUPFWD_DEFAULT 0 | |
784b58a3 BT |
37 | /* Don't allow forwarding of control protocols like STP, MAC PAUSE and LACP */ |
38 | #define BR_GROUPFWD_RESTRICTED 0x0007u | |
f2808d22 TM |
39 | /* The Nearest Customer Bridge Group Address, 01-80-C2-00-00-[00,0B,0C,0D,0F] */ |
40 | #define BR_GROUPFWD_8021AD 0xB801u | |
515853cc | 41 | |
9cde0708 SH |
42 | /* Path to usermode spanning tree program */ |
43 | #define BR_STP_PROG "/sbin/bridge-stp" | |
8cbb512e | 44 | |
1da177e4 LT |
45 | typedef struct bridge_id bridge_id; |
46 | typedef struct mac_addr mac_addr; | |
47 | typedef __u16 port_id; | |
48 | ||
49 | struct bridge_id | |
50 | { | |
51 | unsigned char prio[2]; | |
e5a727f6 | 52 | unsigned char addr[ETH_ALEN]; |
1da177e4 LT |
53 | }; |
54 | ||
55 | struct mac_addr | |
56 | { | |
e5a727f6 | 57 | unsigned char addr[ETH_ALEN]; |
1da177e4 LT |
58 | }; |
59 | ||
cc0fdd80 LL |
60 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
61 | /* our own querier */ | |
90010b36 | 62 | struct bridge_mcast_own_query { |
cc0fdd80 LL |
63 | struct timer_list timer; |
64 | u32 startup_sent; | |
65 | }; | |
66 | ||
67 | /* other querier */ | |
90010b36 | 68 | struct bridge_mcast_other_query { |
cc0fdd80 LL |
69 | struct timer_list timer; |
70 | unsigned long delay_time; | |
71 | }; | |
dc4eb53a LL |
72 | |
73 | /* selected querier */ | |
74 | struct bridge_mcast_querier { | |
75 | struct br_ip addr; | |
2cd41431 | 76 | struct net_bridge_port __rcu *port; |
dc4eb53a | 77 | }; |
1080ab95 NA |
78 | |
79 | /* IGMP/MLD statistics */ | |
80 | struct bridge_mcast_stats { | |
81 | struct br_mcast_stats mstats; | |
82 | struct u64_stats_sync syncp; | |
83 | }; | |
cc0fdd80 LL |
84 | #endif |
85 | ||
6dada9b1 NA |
86 | struct br_vlan_stats { |
87 | u64 rx_bytes; | |
88 | u64 rx_packets; | |
89 | u64 tx_bytes; | |
90 | u64 tx_packets; | |
91 | struct u64_stats_sync syncp; | |
92 | }; | |
93 | ||
efa5356b RP |
94 | struct br_tunnel_info { |
95 | __be64 tunnel_id; | |
96 | struct metadata_dst *tunnel_dst; | |
97 | }; | |
98 | ||
2594e906 NA |
99 | /** |
100 | * struct net_bridge_vlan - per-vlan entry | |
101 | * | |
102 | * @vnode: rhashtable member | |
103 | * @vid: VLAN id | |
104 | * @flags: bridge vlan flags | |
6dada9b1 | 105 | * @stats: per-cpu VLAN statistics |
2594e906 NA |
106 | * @br: if MASTER flag set, this points to a bridge struct |
107 | * @port: if MASTER flag unset, this points to a port struct | |
108 | * @refcnt: if MASTER flag set, this is bumped for each port referencing it | |
109 | * @brvlan: if MASTER flag unset, this points to the global per-VLAN context | |
110 | * for this VLAN entry | |
111 | * @vlist: sorted list of VLAN entries | |
112 | * @rcu: used for entry destruction | |
113 | * | |
114 | * This structure is shared between the global per-VLAN entries contained in | |
115 | * the bridge rhashtable and the local per-port per-VLAN entries contained in | |
116 | * the port's rhashtable. The union entries should be interpreted depending on | |
117 | * the entry flags that are set. | |
118 | */ | |
119 | struct net_bridge_vlan { | |
120 | struct rhash_head vnode; | |
efa5356b | 121 | struct rhash_head tnode; |
2594e906 NA |
122 | u16 vid; |
123 | u16 flags; | |
6dada9b1 | 124 | struct br_vlan_stats __percpu *stats; |
243a2e63 | 125 | union { |
2594e906 NA |
126 | struct net_bridge *br; |
127 | struct net_bridge_port *port; | |
128 | }; | |
129 | union { | |
130 | atomic_t refcnt; | |
131 | struct net_bridge_vlan *brvlan; | |
132 | }; | |
efa5356b RP |
133 | |
134 | struct br_tunnel_info tinfo; | |
135 | ||
2594e906 NA |
136 | struct list_head vlist; |
137 | ||
243a2e63 | 138 | struct rcu_head rcu; |
2594e906 NA |
139 | }; |
140 | ||
141 | /** | |
142 | * struct net_bridge_vlan_group | |
143 | * | |
144 | * @vlan_hash: VLAN entry rhashtable | |
145 | * @vlan_list: sorted VLAN entry list | |
146 | * @num_vlans: number of total VLAN entries | |
77751ee8 | 147 | * @pvid: PVID VLAN id |
2594e906 NA |
148 | * |
149 | * IMPORTANT: Be careful when checking if there're VLAN entries using list | |
150 | * primitives because the bridge can have entries in its list which | |
151 | * are just for global context but not for filtering, i.e. they have | |
152 | * the master flag set but not the brentry flag. If you have to check | |
153 | * if there're "real" entries in the bridge please test @num_vlans | |
154 | */ | |
155 | struct net_bridge_vlan_group { | |
156 | struct rhashtable vlan_hash; | |
efa5356b | 157 | struct rhashtable tunnel_hash; |
2594e906 | 158 | struct list_head vlan_list; |
6cbdceeb | 159 | u16 num_vlans; |
77751ee8 | 160 | u16 pvid; |
243a2e63 VY |
161 | }; |
162 | ||
1da177e4 LT |
163 | struct net_bridge_fdb_entry |
164 | { | |
165 | struct hlist_node hlist; | |
166 | struct net_bridge_port *dst; | |
167 | ||
7cd8861a | 168 | unsigned long updated; |
169 | unsigned long used; | |
1da177e4 | 170 | mac_addr addr; |
b22fbf22 | 171 | __u16 vlan_id; |
93859b13 JP |
172 | unsigned char is_local:1, |
173 | is_static:1, | |
cf6b8e1e SF |
174 | added_by_user:1, |
175 | added_by_external_learn:1; | |
b22fbf22 | 176 | struct rcu_head rcu; |
1da177e4 LT |
177 | }; |
178 | ||
9d06b6d8 ER |
179 | #define MDB_PG_FLAGS_PERMANENT BIT(0) |
180 | #define MDB_PG_FLAGS_OFFLOAD BIT(1) | |
181 | ||
eb1d1641 HX |
182 | struct net_bridge_port_group { |
183 | struct net_bridge_port *port; | |
e8051688 | 184 | struct net_bridge_port_group __rcu *next; |
eb1d1641 HX |
185 | struct hlist_node mglist; |
186 | struct rcu_head rcu; | |
187 | struct timer_list timer; | |
8ef2a9a5 | 188 | struct br_ip addr; |
9d06b6d8 | 189 | unsigned char flags; |
6db6f0ea | 190 | unsigned char eth_addr[ETH_ALEN]; |
eb1d1641 HX |
191 | }; |
192 | ||
193 | struct net_bridge_mdb_entry | |
194 | { | |
195 | struct hlist_node hlist[2]; | |
eb1d1641 | 196 | struct net_bridge *br; |
e8051688 | 197 | struct net_bridge_port_group __rcu *ports; |
eb1d1641 HX |
198 | struct rcu_head rcu; |
199 | struct timer_list timer; | |
8ef2a9a5 | 200 | struct br_ip addr; |
8a870178 | 201 | bool mglist; |
eb1d1641 HX |
202 | }; |
203 | ||
204 | struct net_bridge_mdb_htable | |
205 | { | |
206 | struct hlist_head *mhash; | |
207 | struct rcu_head rcu; | |
208 | struct net_bridge_mdb_htable *old; | |
209 | u32 size; | |
210 | u32 max; | |
211 | u32 secret; | |
212 | u32 ver; | |
213 | }; | |
214 | ||
1da177e4 LT |
215 | struct net_bridge_port |
216 | { | |
217 | struct net_bridge *br; | |
218 | struct net_device *dev; | |
219 | struct list_head list; | |
220 | ||
221 | /* STP */ | |
222 | u8 priority; | |
223 | u8 state; | |
224 | u16 port_no; | |
225 | unsigned char topology_change_ack; | |
226 | unsigned char config_pending; | |
227 | port_id port_id; | |
228 | port_id designated_port; | |
229 | bridge_id designated_root; | |
230 | bridge_id designated_bridge; | |
231 | u32 path_cost; | |
232 | u32 designated_cost; | |
0c03150e | 233 | unsigned long designated_age; |
1da177e4 LT |
234 | |
235 | struct timer_list forward_delay_timer; | |
236 | struct timer_list hold_timer; | |
237 | struct timer_list message_age_timer; | |
238 | struct kobject kobj; | |
239 | struct rcu_head rcu; | |
3982d3d2 FA |
240 | |
241 | unsigned long flags; | |
eb1d1641 HX |
242 | |
243 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING | |
90010b36 | 244 | struct bridge_mcast_own_query ip4_own_query; |
cc0fdd80 | 245 | #if IS_ENABLED(CONFIG_IPV6) |
90010b36 | 246 | struct bridge_mcast_own_query ip6_own_query; |
cc0fdd80 | 247 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
eb1d1641 | 248 | unsigned char multicast_router; |
1080ab95 | 249 | struct bridge_mcast_stats __percpu *mcast_stats; |
eb1d1641 | 250 | struct timer_list multicast_router_timer; |
eb1d1641 HX |
251 | struct hlist_head mglist; |
252 | struct hlist_node rlist; | |
253 | #endif | |
e0f43752 SA |
254 | |
255 | #ifdef CONFIG_SYSFS | |
256 | char sysfs_name[IFNAMSIZ]; | |
257 | #endif | |
91d2c34a HX |
258 | |
259 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
260 | struct netpoll *np; | |
261 | #endif | |
243a2e63 | 262 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
907b1e6e | 263 | struct net_bridge_vlan_group __rcu *vlgrp; |
243a2e63 | 264 | #endif |
6bc506b4 IS |
265 | #ifdef CONFIG_NET_SWITCHDEV |
266 | int offload_fwd_mark; | |
267 | #endif | |
1da177e4 LT |
268 | }; |
269 | ||
e028e4b8 | 270 | #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) |
f3a6ddf1 | 271 | #define br_promisc_port(p) ((p)->flags & BR_PROMISC) |
e028e4b8 | 272 | |
f350a0a8 JP |
273 | #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) |
274 | ||
b5ed54e9 | 275 | static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) |
276 | { | |
716ec052 | 277 | return rcu_dereference(dev->rx_handler_data); |
b5ed54e9 | 278 | } |
279 | ||
1fb1754a | 280 | static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) |
b5ed54e9 | 281 | { |
ec1e5610 ED |
282 | return br_port_exists(dev) ? |
283 | rtnl_dereference(dev->rx_handler_data) : NULL; | |
b5ed54e9 | 284 | } |
285 | ||
1da177e4 LT |
286 | struct net_bridge |
287 | { | |
288 | spinlock_t lock; | |
289 | struct list_head port_list; | |
290 | struct net_device *dev; | |
14bb4789 | 291 | |
8f84985f | 292 | struct pcpu_sw_netstats __percpu *stats; |
1da177e4 LT |
293 | spinlock_t hash_lock; |
294 | struct hlist_head hash[BR_HASH_SIZE]; | |
34666d46 | 295 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
efb6de9b BT |
296 | union { |
297 | struct rtable fake_rtable; | |
298 | struct rt6_info fake_rt6_info; | |
299 | }; | |
4df53d8b PM |
300 | bool nf_call_iptables; |
301 | bool nf_call_ip6tables; | |
302 | bool nf_call_arptables; | |
4adf0af6 | 303 | #endif |
515853cc | 304 | u16 group_fwd_mask; |
f2808d22 | 305 | u16 group_fwd_mask_required; |
515853cc | 306 | |
1da177e4 LT |
307 | /* STP */ |
308 | bridge_id designated_root; | |
309 | bridge_id bridge_id; | |
310 | u32 root_path_cost; | |
311 | unsigned long max_age; | |
312 | unsigned long hello_time; | |
313 | unsigned long forward_delay; | |
1da177e4 | 314 | unsigned long ageing_time; |
34d8acd8 | 315 | unsigned long bridge_max_age; |
1da177e4 LT |
316 | unsigned long bridge_hello_time; |
317 | unsigned long bridge_forward_delay; | |
34d8acd8 | 318 | unsigned long bridge_ageing_time; |
1da177e4 | 319 | |
fda93d92 | 320 | u8 group_addr[ETH_ALEN]; |
204177f3 | 321 | bool group_addr_set; |
1da177e4 | 322 | u16 root_port; |
9cde0708 SH |
323 | |
324 | enum { | |
325 | BR_NO_STP, /* no spanning tree */ | |
326 | BR_KERNEL_STP, /* old STP in kernel */ | |
327 | BR_USER_STP, /* new RSTP in userspace */ | |
328 | } stp_enabled; | |
329 | ||
1da177e4 LT |
330 | unsigned char topology_change; |
331 | unsigned char topology_change_detected; | |
332 | ||
eb1d1641 HX |
333 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
334 | unsigned char multicast_router; | |
335 | ||
336 | u8 multicast_disabled:1; | |
c5c23260 | 337 | u8 multicast_querier:1; |
1c8ad5bf | 338 | u8 multicast_query_use_ifaddr:1; |
0888d5f3 | 339 | u8 has_ipv6_addr:1; |
1080ab95 | 340 | u8 multicast_stats_enabled:1; |
eb1d1641 HX |
341 | |
342 | u32 hash_elasticity; | |
343 | u32 hash_max; | |
344 | ||
345 | u32 multicast_last_member_count; | |
eb1d1641 HX |
346 | u32 multicast_startup_query_count; |
347 | ||
5e923585 NA |
348 | u8 multicast_igmp_version; |
349 | ||
eb1d1641 HX |
350 | unsigned long multicast_last_member_interval; |
351 | unsigned long multicast_membership_interval; | |
352 | unsigned long multicast_querier_interval; | |
353 | unsigned long multicast_query_interval; | |
354 | unsigned long multicast_query_response_interval; | |
355 | unsigned long multicast_startup_query_interval; | |
356 | ||
357 | spinlock_t multicast_lock; | |
e8051688 | 358 | struct net_bridge_mdb_htable __rcu *mdb; |
eb1d1641 | 359 | struct hlist_head router_list; |
eb1d1641 HX |
360 | |
361 | struct timer_list multicast_router_timer; | |
90010b36 LL |
362 | struct bridge_mcast_other_query ip4_other_query; |
363 | struct bridge_mcast_own_query ip4_own_query; | |
dc4eb53a | 364 | struct bridge_mcast_querier ip4_querier; |
1080ab95 | 365 | struct bridge_mcast_stats __percpu *mcast_stats; |
cc0fdd80 | 366 | #if IS_ENABLED(CONFIG_IPV6) |
90010b36 LL |
367 | struct bridge_mcast_other_query ip6_other_query; |
368 | struct bridge_mcast_own_query ip6_own_query; | |
dc4eb53a | 369 | struct bridge_mcast_querier ip6_querier; |
aa2ae3e7 | 370 | u8 multicast_mld_version; |
cc0fdd80 | 371 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
eb1d1641 HX |
372 | #endif |
373 | ||
1da177e4 LT |
374 | struct timer_list hello_timer; |
375 | struct timer_list tcn_timer; | |
376 | struct timer_list topology_change_timer; | |
377 | struct timer_list gc_timer; | |
43b98c4a | 378 | struct kobject *ifobj; |
e028e4b8 | 379 | u32 auto_cnt; |
6bc506b4 IS |
380 | |
381 | #ifdef CONFIG_NET_SWITCHDEV | |
382 | int offload_fwd_mark; | |
383 | #endif | |
384 | ||
243a2e63 | 385 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
907b1e6e | 386 | struct net_bridge_vlan_group __rcu *vlgrp; |
243a2e63 | 387 | u8 vlan_enabled; |
6dada9b1 | 388 | u8 vlan_stats_enabled; |
8580e211 | 389 | __be16 vlan_proto; |
96a20d9d | 390 | u16 default_pvid; |
243a2e63 | 391 | #endif |
1da177e4 LT |
392 | }; |
393 | ||
68b7c895 HX |
394 | struct br_input_skb_cb { |
395 | struct net_device *brdev; | |
93fdd47e | 396 | |
32dec5dd | 397 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
eb1d1641 HX |
398 | int igmp; |
399 | int mrouters_only; | |
32dec5dd | 400 | #endif |
93fdd47e | 401 | |
842a9ae0 | 402 | bool proxyarp_replied; |
93fdd47e | 403 | |
20adfa1a VY |
404 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
405 | bool vlan_filtered; | |
406 | #endif | |
6bc506b4 IS |
407 | |
408 | #ifdef CONFIG_NET_SWITCHDEV | |
409 | int offload_fwd_mark; | |
410 | #endif | |
68b7c895 HX |
411 | }; |
412 | ||
413 | #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) | |
414 | ||
32dec5dd YH |
415 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
416 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) | |
417 | #else | |
418 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) | |
419 | #endif | |
420 | ||
28a16c97 | 421 | #define br_printk(level, br, format, args...) \ |
422 | printk(level "%s: " format, (br)->dev->name, ##args) | |
423 | ||
424 | #define br_err(__br, format, args...) \ | |
425 | br_printk(KERN_ERR, __br, format, ##args) | |
426 | #define br_warn(__br, format, args...) \ | |
427 | br_printk(KERN_WARNING, __br, format, ##args) | |
428 | #define br_notice(__br, format, args...) \ | |
429 | br_printk(KERN_NOTICE, __br, format, ##args) | |
430 | #define br_info(__br, format, args...) \ | |
431 | br_printk(KERN_INFO, __br, format, ##args) | |
432 | ||
433 | #define br_debug(br, format, args...) \ | |
434 | pr_debug("%s: " format, (br)->dev->name, ##args) | |
435 | ||
1da177e4 LT |
436 | /* called under bridge lock */ |
437 | static inline int br_is_root_bridge(const struct net_bridge *br) | |
438 | { | |
439 | return !memcmp(&br->bridge_id, &br->designated_root, 8); | |
440 | } | |
441 | ||
2594e906 NA |
442 | /* check if a VLAN entry is global */ |
443 | static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) | |
444 | { | |
445 | return v->flags & BRIDGE_VLAN_INFO_MASTER; | |
446 | } | |
447 | ||
448 | /* check if a VLAN entry is used by the bridge */ | |
449 | static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) | |
450 | { | |
451 | return v->flags & BRIDGE_VLAN_INFO_BRENTRY; | |
452 | } | |
453 | ||
6be144f6 | 454 | /* check if we should use the vlan entry, returns false if it's only context */ |
2594e906 NA |
455 | static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) |
456 | { | |
457 | if (br_vlan_is_master(v)) { | |
458 | if (br_vlan_is_brentry(v)) | |
459 | return true; | |
460 | else | |
461 | return false; | |
462 | } | |
463 | ||
464 | return true; | |
465 | } | |
466 | ||
1da177e4 | 467 | /* br_device.c */ |
348662a1 JP |
468 | void br_dev_setup(struct net_device *dev); |
469 | void br_dev_delete(struct net_device *dev, struct list_head *list); | |
470 | netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); | |
cfb478da | 471 | #ifdef CONFIG_NET_POLL_CONTROLLER |
91d2c34a HX |
472 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
473 | struct sk_buff *skb) | |
474 | { | |
475 | struct netpoll *np = p->np; | |
476 | ||
477 | if (np) | |
478 | netpoll_send_skb(np, skb); | |
479 | } | |
480 | ||
a8779ec1 | 481 | int br_netpoll_enable(struct net_bridge_port *p); |
348662a1 | 482 | void br_netpoll_disable(struct net_bridge_port *p); |
cfb478da | 483 | #else |
9f70b0fc | 484 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
91d2c34a HX |
485 | struct sk_buff *skb) |
486 | { | |
487 | } | |
cfb478da | 488 | |
a8779ec1 | 489 | static inline int br_netpoll_enable(struct net_bridge_port *p) |
91d2c34a HX |
490 | { |
491 | return 0; | |
492 | } | |
493 | ||
494 | static inline void br_netpoll_disable(struct net_bridge_port *p) | |
495 | { | |
496 | } | |
cfb478da | 497 | #endif |
1da177e4 LT |
498 | |
499 | /* br_fdb.c */ | |
348662a1 JP |
500 | int br_fdb_init(void); |
501 | void br_fdb_fini(void); | |
502 | void br_fdb_flush(struct net_bridge *br); | |
424bb9c9 TM |
503 | void br_fdb_find_delete_local(struct net_bridge *br, |
504 | const struct net_bridge_port *p, | |
505 | const unsigned char *addr, u16 vid); | |
348662a1 JP |
506 | void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); |
507 | void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); | |
508 | void br_fdb_cleanup(unsigned long arg); | |
509 | void br_fdb_delete_by_port(struct net_bridge *br, | |
1ea2d020 | 510 | const struct net_bridge_port *p, u16 vid, int do_all); |
348662a1 JP |
511 | struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, |
512 | const unsigned char *addr, __u16 vid); | |
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 NA |
622 | int br_multicast_init_stats(struct net_bridge *br); |
623 | void br_multicast_get_stats(const struct net_bridge *br, | |
624 | const struct net_bridge_port *p, | |
625 | struct br_mcast_stats *dest); | |
85b35269 | 626 | |
cfd56754 CW |
627 | #define mlock_dereference(X, br) \ |
628 | rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) | |
629 | ||
85b35269 SS |
630 | static inline bool br_multicast_is_router(struct net_bridge *br) |
631 | { | |
632 | return br->multicast_router == 2 || | |
633 | (br->multicast_router == 1 && | |
634 | timer_pending(&br->multicast_router_timer)); | |
635 | } | |
b00589af | 636 | |
cc0fdd80 LL |
637 | static inline bool |
638 | __br_multicast_querier_exists(struct net_bridge *br, | |
0888d5f3 | 639 | struct bridge_mcast_other_query *querier, |
640 | const bool is_ipv6) | |
b00589af | 641 | { |
0888d5f3 | 642 | bool own_querier_enabled; |
643 | ||
644 | if (br->multicast_querier) { | |
645 | if (is_ipv6 && !br->has_ipv6_addr) | |
646 | own_querier_enabled = false; | |
647 | else | |
648 | own_querier_enabled = true; | |
649 | } else { | |
650 | own_querier_enabled = false; | |
651 | } | |
652 | ||
cc0fdd80 | 653 | return time_is_before_jiffies(querier->delay_time) && |
0888d5f3 | 654 | (own_querier_enabled || timer_pending(&querier->timer)); |
cc0fdd80 LL |
655 | } |
656 | ||
657 | static inline bool br_multicast_querier_exists(struct net_bridge *br, | |
658 | struct ethhdr *eth) | |
659 | { | |
660 | switch (eth->h_proto) { | |
661 | case (htons(ETH_P_IP)): | |
0888d5f3 | 662 | return __br_multicast_querier_exists(br, |
663 | &br->ip4_other_query, false); | |
cc0fdd80 LL |
664 | #if IS_ENABLED(CONFIG_IPV6) |
665 | case (htons(ETH_P_IPV6)): | |
0888d5f3 | 666 | return __br_multicast_querier_exists(br, |
667 | &br->ip6_other_query, true); | |
cc0fdd80 LL |
668 | #endif |
669 | default: | |
670 | return false; | |
671 | } | |
b00589af | 672 | } |
1080ab95 NA |
673 | |
674 | static inline int br_multicast_igmp_type(const struct sk_buff *skb) | |
675 | { | |
676 | return BR_INPUT_SKB_CB(skb)->igmp; | |
677 | } | |
eb1d1641 HX |
678 | #else |
679 | static inline int br_multicast_rcv(struct net_bridge *br, | |
680 | struct net_bridge_port *port, | |
06499098 VY |
681 | struct sk_buff *skb, |
682 | u16 vid) | |
eb1d1641 HX |
683 | { |
684 | return 0; | |
685 | } | |
686 | ||
687 | static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, | |
fbca58a2 | 688 | struct sk_buff *skb, u16 vid) |
eb1d1641 HX |
689 | { |
690 | return NULL; | |
691 | } | |
692 | ||
1080ab95 | 693 | static inline int br_multicast_add_port(struct net_bridge_port *port) |
eb1d1641 | 694 | { |
1080ab95 | 695 | return 0; |
eb1d1641 HX |
696 | } |
697 | ||
698 | static inline void br_multicast_del_port(struct net_bridge_port *port) | |
699 | { | |
700 | } | |
701 | ||
702 | static inline void br_multicast_enable_port(struct net_bridge_port *port) | |
703 | { | |
704 | } | |
705 | ||
706 | static inline void br_multicast_disable_port(struct net_bridge_port *port) | |
707 | { | |
708 | } | |
709 | ||
710 | static inline void br_multicast_init(struct net_bridge *br) | |
711 | { | |
712 | } | |
713 | ||
714 | static inline void br_multicast_open(struct net_bridge *br) | |
715 | { | |
716 | } | |
717 | ||
718 | static inline void br_multicast_stop(struct net_bridge *br) | |
719 | { | |
720 | } | |
5cb5e947 | 721 | |
a7ce45a7 NA |
722 | static inline void br_multicast_dev_del(struct net_bridge *br) |
723 | { | |
724 | } | |
725 | ||
37b090e6 NA |
726 | static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, |
727 | struct sk_buff *skb, | |
728 | bool local_rcv, bool local_orig) | |
5cb5e947 HX |
729 | { |
730 | } | |
731 | ||
eb1d1641 HX |
732 | static inline bool br_multicast_is_router(struct net_bridge *br) |
733 | { | |
85b35269 | 734 | return 0; |
eb1d1641 | 735 | } |
37b090e6 | 736 | |
cc0fdd80 LL |
737 | static inline bool br_multicast_querier_exists(struct net_bridge *br, |
738 | struct ethhdr *eth) | |
b00589af LL |
739 | { |
740 | return false; | |
741 | } | |
37b090e6 | 742 | |
fdb184d1 RR |
743 | static inline void br_mdb_init(void) |
744 | { | |
745 | } | |
37b090e6 | 746 | |
fdb184d1 RR |
747 | static inline void br_mdb_uninit(void) |
748 | { | |
749 | } | |
1080ab95 NA |
750 | |
751 | static inline void br_multicast_count(struct net_bridge *br, | |
752 | const struct net_bridge_port *p, | |
a65056ec NA |
753 | const struct sk_buff *skb, |
754 | u8 type, u8 dir) | |
1080ab95 NA |
755 | { |
756 | } | |
757 | ||
758 | static inline int br_multicast_init_stats(struct net_bridge *br) | |
759 | { | |
760 | return 0; | |
761 | } | |
762 | ||
763 | static inline int br_multicast_igmp_type(const struct sk_buff *skb) | |
764 | { | |
765 | return 0; | |
766 | } | |
85b35269 | 767 | #endif |
eb1d1641 | 768 | |
243a2e63 VY |
769 | /* br_vlan.c */ |
770 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
77751ee8 NA |
771 | bool br_allowed_ingress(const struct net_bridge *br, |
772 | struct net_bridge_vlan_group *vg, struct sk_buff *skb, | |
773 | u16 *vid); | |
774 | bool br_allowed_egress(struct net_bridge_vlan_group *vg, | |
348662a1 | 775 | const struct sk_buff *skb); |
e0d7968a | 776 | bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); |
348662a1 | 777 | struct sk_buff *br_handle_vlan(struct net_bridge *br, |
11538d03 | 778 | const struct net_bridge_port *port, |
2594e906 | 779 | struct net_bridge_vlan_group *vg, |
348662a1 JP |
780 | struct sk_buff *skb); |
781 | int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); | |
782 | int br_vlan_delete(struct net_bridge *br, u16 vid); | |
783 | void br_vlan_flush(struct net_bridge *br); | |
2594e906 | 784 | struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); |
204177f3 | 785 | void br_recalculate_fwd_mask(struct net_bridge *br); |
a7854037 | 786 | int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
348662a1 | 787 | int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
d2d427b3 | 788 | int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); |
204177f3 | 789 | int br_vlan_set_proto(struct net_bridge *br, unsigned long val); |
6dada9b1 | 790 | int br_vlan_set_stats(struct net_bridge *br, unsigned long val); |
5be5a2df | 791 | int br_vlan_init(struct net_bridge *br); |
96a20d9d | 792 | int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); |
0f963b75 | 793 | int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid); |
348662a1 JP |
794 | int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); |
795 | int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); | |
796 | void nbp_vlan_flush(struct net_bridge_port *port); | |
5be5a2df | 797 | int nbp_vlan_init(struct net_bridge_port *port); |
2594e906 | 798 | int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); |
a60c0903 NA |
799 | void br_vlan_get_stats(const struct net_bridge_vlan *v, |
800 | struct br_vlan_stats *stats); | |
a37b85c9 | 801 | |
2594e906 NA |
802 | static inline struct net_bridge_vlan_group *br_vlan_group( |
803 | const struct net_bridge *br) | |
a37b85c9 | 804 | { |
907b1e6e | 805 | return rtnl_dereference(br->vlgrp); |
a37b85c9 VY |
806 | } |
807 | ||
2594e906 NA |
808 | static inline struct net_bridge_vlan_group *nbp_vlan_group( |
809 | const struct net_bridge_port *p) | |
a37b85c9 | 810 | { |
907b1e6e NA |
811 | return rtnl_dereference(p->vlgrp); |
812 | } | |
813 | ||
814 | static inline struct net_bridge_vlan_group *br_vlan_group_rcu( | |
815 | const struct net_bridge *br) | |
816 | { | |
817 | return rcu_dereference(br->vlgrp); | |
818 | } | |
819 | ||
820 | static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( | |
821 | const struct net_bridge_port *p) | |
822 | { | |
823 | return rcu_dereference(p->vlgrp); | |
a37b85c9 VY |
824 | } |
825 | ||
826 | /* Since bridge now depends on 8021Q module, but the time bridge sees the | |
827 | * skb, the vlan tag will always be present if the frame was tagged. | |
828 | */ | |
829 | static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) | |
830 | { | |
831 | int err = 0; | |
832 | ||
2594e906 | 833 | if (skb_vlan_tag_present(skb)) { |
df8a39de | 834 | *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; |
2594e906 | 835 | } else { |
a37b85c9 VY |
836 | *vid = 0; |
837 | err = -EINVAL; | |
838 | } | |
839 | ||
840 | return err; | |
841 | } | |
78851988 | 842 | |
77751ee8 | 843 | static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) |
2594e906 | 844 | { |
77751ee8 | 845 | if (!vg) |
2594e906 NA |
846 | return 0; |
847 | ||
848 | smp_rmb(); | |
77751ee8 | 849 | return vg->pvid; |
78851988 VY |
850 | } |
851 | ||
2796d0c6 VY |
852 | static inline int br_vlan_enabled(struct net_bridge *br) |
853 | { | |
854 | return br->vlan_enabled; | |
855 | } | |
243a2e63 | 856 | #else |
77751ee8 NA |
857 | static inline bool br_allowed_ingress(const struct net_bridge *br, |
858 | struct net_bridge_vlan_group *vg, | |
78851988 VY |
859 | struct sk_buff *skb, |
860 | u16 *vid) | |
a37b85c9 VY |
861 | { |
862 | return true; | |
863 | } | |
864 | ||
2594e906 | 865 | static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, |
85f46c6b VY |
866 | const struct sk_buff *skb) |
867 | { | |
868 | return true; | |
869 | } | |
870 | ||
e0d7968a TM |
871 | static inline bool br_should_learn(struct net_bridge_port *p, |
872 | struct sk_buff *skb, u16 *vid) | |
873 | { | |
874 | return true; | |
875 | } | |
876 | ||
78851988 | 877 | static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, |
11538d03 | 878 | const struct net_bridge_port *port, |
2594e906 | 879 | struct net_bridge_vlan_group *vg, |
78851988 VY |
880 | struct sk_buff *skb) |
881 | { | |
882 | return skb; | |
883 | } | |
884 | ||
552406c4 | 885 | static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) |
243a2e63 VY |
886 | { |
887 | return -EOPNOTSUPP; | |
888 | } | |
889 | ||
890 | static inline int br_vlan_delete(struct net_bridge *br, u16 vid) | |
891 | { | |
892 | return -EOPNOTSUPP; | |
893 | } | |
894 | ||
895 | static inline void br_vlan_flush(struct net_bridge *br) | |
896 | { | |
897 | } | |
898 | ||
204177f3 TM |
899 | static inline void br_recalculate_fwd_mask(struct net_bridge *br) |
900 | { | |
901 | } | |
902 | ||
5be5a2df | 903 | static inline int br_vlan_init(struct net_bridge *br) |
8580e211 | 904 | { |
5be5a2df | 905 | return 0; |
8580e211 TM |
906 | } |
907 | ||
552406c4 | 908 | static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) |
243a2e63 VY |
909 | { |
910 | return -EOPNOTSUPP; | |
911 | } | |
912 | ||
913 | static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) | |
914 | { | |
915 | return -EOPNOTSUPP; | |
916 | } | |
917 | ||
918 | static inline void nbp_vlan_flush(struct net_bridge_port *port) | |
919 | { | |
920 | } | |
921 | ||
2594e906 NA |
922 | static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, |
923 | u16 vid) | |
a37b85c9 VY |
924 | { |
925 | return NULL; | |
926 | } | |
927 | ||
2594e906 | 928 | static inline int nbp_vlan_init(struct net_bridge_port *port) |
bc9a25d2 | 929 | { |
2594e906 | 930 | return 0; |
bc9a25d2 VY |
931 | } |
932 | ||
2594e906 | 933 | static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) |
5be5a2df VY |
934 | { |
935 | return 0; | |
936 | } | |
937 | ||
77751ee8 | 938 | static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) |
78851988 | 939 | { |
3df6bf45 | 940 | return 0; |
78851988 | 941 | } |
2796d0c6 | 942 | |
d4f0e095 | 943 | static inline int br_vlan_enabled(struct net_bridge *br) |
2796d0c6 VY |
944 | { |
945 | return 0; | |
946 | } | |
a7854037 NA |
947 | |
948 | static inline int __br_vlan_filter_toggle(struct net_bridge *br, | |
949 | unsigned long val) | |
950 | { | |
951 | return -EOPNOTSUPP; | |
952 | } | |
2594e906 NA |
953 | |
954 | static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, | |
955 | u32 filter_mask) | |
956 | { | |
957 | return 0; | |
958 | } | |
959 | ||
960 | static inline struct net_bridge_vlan_group *br_vlan_group( | |
961 | const struct net_bridge *br) | |
962 | { | |
963 | return NULL; | |
964 | } | |
965 | ||
966 | static inline struct net_bridge_vlan_group *nbp_vlan_group( | |
967 | const struct net_bridge_port *p) | |
968 | { | |
969 | return NULL; | |
970 | } | |
907b1e6e NA |
971 | |
972 | static inline struct net_bridge_vlan_group *br_vlan_group_rcu( | |
973 | const struct net_bridge *br) | |
974 | { | |
975 | return NULL; | |
976 | } | |
977 | ||
978 | static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( | |
979 | const struct net_bridge_port *p) | |
980 | { | |
981 | return NULL; | |
982 | } | |
a60c0903 NA |
983 | |
984 | static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, | |
985 | struct br_vlan_stats *stats) | |
986 | { | |
987 | } | |
243a2e63 VY |
988 | #endif |
989 | ||
1a4ba64d PNA |
990 | struct nf_br_ops { |
991 | int (*br_dev_xmit_hook)(struct sk_buff *skb); | |
992 | }; | |
993 | extern const struct nf_br_ops __rcu *nf_br_ops; | |
994 | ||
1da177e4 | 995 | /* br_netfilter.c */ |
34666d46 PNA |
996 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
997 | int br_nf_core_init(void); | |
998 | void br_nf_core_fini(void); | |
348662a1 | 999 | void br_netfilter_rtable_init(struct net_bridge *); |
c0909713 | 1000 | #else |
34666d46 PNA |
1001 | static inline int br_nf_core_init(void) { return 0; } |
1002 | static inline void br_nf_core_fini(void) {} | |
4adf0af6 | 1003 | #define br_netfilter_rtable_init(x) |
c0909713 | 1004 | #endif |
1da177e4 LT |
1005 | |
1006 | /* br_stp.c */ | |
775dd692 | 1007 | void br_set_state(struct net_bridge_port *p, unsigned int state); |
348662a1 JP |
1008 | struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); |
1009 | void br_init_port(struct net_bridge_port *p); | |
1010 | void br_become_designated_port(struct net_bridge_port *p); | |
1da177e4 | 1011 | |
348662a1 JP |
1012 | void __br_set_forward_delay(struct net_bridge *br, unsigned long t); |
1013 | int br_set_forward_delay(struct net_bridge *br, unsigned long x); | |
1014 | int br_set_hello_time(struct net_bridge *br, unsigned long x); | |
1015 | int br_set_max_age(struct net_bridge *br, unsigned long x); | |
82dd4332 | 1016 | int __set_ageing_time(struct net_device *dev, unsigned long t); |
9e0b27fe | 1017 | int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); |
14f98f25 | 1018 | |
1019 | ||
1da177e4 | 1020 | /* br_stp_if.c */ |
348662a1 JP |
1021 | void br_stp_enable_bridge(struct net_bridge *br); |
1022 | void br_stp_disable_bridge(struct net_bridge *br); | |
1023 | void br_stp_set_enabled(struct net_bridge *br, unsigned long val); | |
1024 | void br_stp_enable_port(struct net_bridge_port *p); | |
1025 | void br_stp_disable_port(struct net_bridge_port *p); | |
1026 | bool br_stp_recalculate_bridge_id(struct net_bridge *br); | |
1027 | void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); | |
1028 | void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); | |
1029 | int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); | |
1030 | int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); | |
1031 | ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); | |
1da177e4 LT |
1032 | |
1033 | /* br_stp_bpdu.c */ | |
7c85fbf0 | 1034 | struct stp_proto; |
348662a1 JP |
1035 | void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, |
1036 | struct net_device *dev); | |
1da177e4 LT |
1037 | |
1038 | /* br_stp_timer.c */ | |
348662a1 JP |
1039 | void br_stp_timer_init(struct net_bridge *br); |
1040 | void br_stp_port_timer_init(struct net_bridge_port *p); | |
1041 | unsigned long br_timer_value(const struct timer_list *timer); | |
1da177e4 LT |
1042 | |
1043 | /* br.c */ | |
e6373c4c | 1044 | #if IS_ENABLED(CONFIG_ATM_LANE) |
da678292 MM |
1045 | extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); |
1046 | #endif | |
1da177e4 | 1047 | |
11dc1f36 | 1048 | /* br_netlink.c */ |
149ddd83 | 1049 | extern struct rtnl_link_ops br_link_ops; |
348662a1 JP |
1050 | int br_netlink_init(void); |
1051 | void br_netlink_fini(void); | |
1052 | void br_ifinfo_notify(int event, struct net_bridge_port *port); | |
add511b3 RP |
1053 | int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); |
1054 | int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); | |
348662a1 | 1055 | int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, |
46c264da | 1056 | u32 filter_mask, int nlflags); |
11dc1f36 | 1057 | |
1da177e4 LT |
1058 | #ifdef CONFIG_SYSFS |
1059 | /* br_sysfs_if.c */ | |
52cf25d0 | 1060 | extern const struct sysfs_ops brport_sysfs_ops; |
348662a1 JP |
1061 | int br_sysfs_addif(struct net_bridge_port *p); |
1062 | int br_sysfs_renameif(struct net_bridge_port *p); | |
1da177e4 LT |
1063 | |
1064 | /* br_sysfs_br.c */ | |
348662a1 JP |
1065 | int br_sysfs_addbr(struct net_device *dev); |
1066 | void br_sysfs_delbr(struct net_device *dev); | |
1da177e4 LT |
1067 | |
1068 | #else | |
1069 | ||
0cb2bbbe LJ |
1070 | static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } |
1071 | static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } | |
1072 | static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } | |
1073 | static inline void br_sysfs_delbr(struct net_device *dev) { return; } | |
1da177e4 LT |
1074 | #endif /* CONFIG_SYSFS */ |
1075 | ||
6bc506b4 IS |
1076 | /* br_switchdev.c */ |
1077 | #ifdef CONFIG_NET_SWITCHDEV | |
1078 | int nbp_switchdev_mark_set(struct net_bridge_port *p); | |
1079 | void nbp_switchdev_frame_mark(const struct net_bridge_port *p, | |
1080 | struct sk_buff *skb); | |
1081 | bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, | |
1082 | const struct sk_buff *skb); | |
1083 | #else | |
1084 | static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) | |
1085 | { | |
1086 | return 0; | |
1087 | } | |
1088 | ||
1089 | static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, | |
1090 | struct sk_buff *skb) | |
1091 | { | |
1092 | } | |
1093 | ||
1094 | static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, | |
1095 | const struct sk_buff *skb) | |
1096 | { | |
1097 | return true; | |
1098 | } | |
1099 | #endif /* CONFIG_NET_SWITCHDEV */ | |
1100 | ||
1da177e4 | 1101 | #endif |