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> |
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 BT |
38 | /* Don't allow forwarding of control protocols like STP, MAC PAUSE and LACP */ |
39 | #define BR_GROUPFWD_RESTRICTED 0x0007u | |
f2808d22 TM |
40 | /* The Nearest Customer Bridge Group Address, 01-80-C2-00-00-[00,0B,0C,0D,0F] */ |
41 | #define BR_GROUPFWD_8021AD 0xB801u | |
515853cc | 42 | |
9cde0708 SH |
43 | /* Path to usermode spanning tree program */ |
44 | #define BR_STP_PROG "/sbin/bridge-stp" | |
8cbb512e | 45 | |
1da177e4 LT |
46 | typedef struct bridge_id bridge_id; |
47 | typedef struct mac_addr mac_addr; | |
48 | typedef __u16 port_id; | |
49 | ||
50 | struct bridge_id | |
51 | { | |
52 | unsigned char prio[2]; | |
e5a727f6 | 53 | unsigned char addr[ETH_ALEN]; |
1da177e4 LT |
54 | }; |
55 | ||
56 | struct mac_addr | |
57 | { | |
e5a727f6 | 58 | unsigned char addr[ETH_ALEN]; |
1da177e4 LT |
59 | }; |
60 | ||
cc0fdd80 LL |
61 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
62 | /* our own querier */ | |
90010b36 | 63 | struct bridge_mcast_own_query { |
cc0fdd80 LL |
64 | struct timer_list timer; |
65 | u32 startup_sent; | |
66 | }; | |
67 | ||
68 | /* other querier */ | |
90010b36 | 69 | struct bridge_mcast_other_query { |
cc0fdd80 LL |
70 | struct timer_list timer; |
71 | unsigned long delay_time; | |
72 | }; | |
dc4eb53a LL |
73 | |
74 | /* selected querier */ | |
75 | struct bridge_mcast_querier { | |
76 | struct br_ip addr; | |
2cd41431 | 77 | struct net_bridge_port __rcu *port; |
dc4eb53a | 78 | }; |
1080ab95 NA |
79 | |
80 | /* IGMP/MLD statistics */ | |
81 | struct bridge_mcast_stats { | |
82 | struct br_mcast_stats mstats; | |
83 | struct u64_stats_sync syncp; | |
84 | }; | |
cc0fdd80 LL |
85 | #endif |
86 | ||
6dada9b1 NA |
87 | struct br_vlan_stats { |
88 | u64 rx_bytes; | |
89 | u64 rx_packets; | |
90 | u64 tx_bytes; | |
91 | u64 tx_packets; | |
92 | struct u64_stats_sync syncp; | |
93 | }; | |
94 | ||
efa5356b RP |
95 | struct br_tunnel_info { |
96 | __be64 tunnel_id; | |
97 | struct metadata_dst *tunnel_dst; | |
98 | }; | |
99 | ||
2594e906 NA |
100 | /** |
101 | * struct net_bridge_vlan - per-vlan entry | |
102 | * | |
103 | * @vnode: rhashtable member | |
104 | * @vid: VLAN id | |
105 | * @flags: bridge vlan flags | |
6dada9b1 | 106 | * @stats: per-cpu VLAN statistics |
2594e906 NA |
107 | * @br: if MASTER flag set, this points to a bridge struct |
108 | * @port: if MASTER flag unset, this points to a port struct | |
109 | * @refcnt: if MASTER flag set, this is bumped for each port referencing it | |
110 | * @brvlan: if MASTER flag unset, this points to the global per-VLAN context | |
111 | * for this VLAN entry | |
112 | * @vlist: sorted list of VLAN entries | |
113 | * @rcu: used for entry destruction | |
114 | * | |
115 | * This structure is shared between the global per-VLAN entries contained in | |
116 | * the bridge rhashtable and the local per-port per-VLAN entries contained in | |
117 | * the port's rhashtable. The union entries should be interpreted depending on | |
118 | * the entry flags that are set. | |
119 | */ | |
120 | struct net_bridge_vlan { | |
121 | struct rhash_head vnode; | |
efa5356b | 122 | struct rhash_head tnode; |
2594e906 NA |
123 | u16 vid; |
124 | u16 flags; | |
6dada9b1 | 125 | struct br_vlan_stats __percpu *stats; |
243a2e63 | 126 | union { |
2594e906 NA |
127 | struct net_bridge *br; |
128 | struct net_bridge_port *port; | |
129 | }; | |
130 | union { | |
25127759 | 131 | refcount_t refcnt; |
2594e906 NA |
132 | struct net_bridge_vlan *brvlan; |
133 | }; | |
efa5356b RP |
134 | |
135 | struct br_tunnel_info tinfo; | |
136 | ||
2594e906 NA |
137 | struct list_head vlist; |
138 | ||
243a2e63 | 139 | struct rcu_head rcu; |
2594e906 NA |
140 | }; |
141 | ||
142 | /** | |
143 | * struct net_bridge_vlan_group | |
144 | * | |
145 | * @vlan_hash: VLAN entry rhashtable | |
146 | * @vlan_list: sorted VLAN entry list | |
147 | * @num_vlans: number of total VLAN entries | |
77751ee8 | 148 | * @pvid: PVID VLAN id |
2594e906 NA |
149 | * |
150 | * IMPORTANT: Be careful when checking if there're VLAN entries using list | |
151 | * primitives because the bridge can have entries in its list which | |
152 | * are just for global context but not for filtering, i.e. they have | |
153 | * the master flag set but not the brentry flag. If you have to check | |
154 | * if there're "real" entries in the bridge please test @num_vlans | |
155 | */ | |
156 | struct net_bridge_vlan_group { | |
157 | struct rhashtable vlan_hash; | |
efa5356b | 158 | struct rhashtable tunnel_hash; |
2594e906 | 159 | struct list_head vlan_list; |
6cbdceeb | 160 | u16 num_vlans; |
77751ee8 | 161 | u16 pvid; |
243a2e63 VY |
162 | }; |
163 | ||
1214628c | 164 | struct net_bridge_fdb_entry { |
1da177e4 LT |
165 | struct hlist_node hlist; |
166 | struct net_bridge_port *dst; | |
167 | ||
1da177e4 | 168 | mac_addr addr; |
b22fbf22 | 169 | __u16 vlan_id; |
93859b13 JP |
170 | unsigned char is_local:1, |
171 | is_static:1, | |
cf6b8e1e | 172 | added_by_user:1, |
9fe8bcec AS |
173 | added_by_external_learn:1, |
174 | offloaded:1; | |
1214628c NA |
175 | |
176 | /* write-heavy members should not affect lookups */ | |
177 | unsigned long updated ____cacheline_aligned_in_smp; | |
178 | unsigned long used; | |
179 | ||
b22fbf22 | 180 | struct rcu_head rcu; |
1da177e4 LT |
181 | }; |
182 | ||
9d06b6d8 ER |
183 | #define MDB_PG_FLAGS_PERMANENT BIT(0) |
184 | #define MDB_PG_FLAGS_OFFLOAD BIT(1) | |
185 | ||
eb1d1641 HX |
186 | struct net_bridge_port_group { |
187 | struct net_bridge_port *port; | |
e8051688 | 188 | struct net_bridge_port_group __rcu *next; |
eb1d1641 HX |
189 | struct hlist_node mglist; |
190 | struct rcu_head rcu; | |
191 | struct timer_list timer; | |
8ef2a9a5 | 192 | struct br_ip addr; |
9d06b6d8 | 193 | unsigned char flags; |
6db6f0ea | 194 | unsigned char eth_addr[ETH_ALEN]; |
eb1d1641 HX |
195 | }; |
196 | ||
197 | struct net_bridge_mdb_entry | |
198 | { | |
199 | struct hlist_node hlist[2]; | |
eb1d1641 | 200 | struct net_bridge *br; |
e8051688 | 201 | struct net_bridge_port_group __rcu *ports; |
eb1d1641 HX |
202 | struct rcu_head rcu; |
203 | struct timer_list timer; | |
8ef2a9a5 | 204 | struct br_ip addr; |
8a870178 | 205 | bool mglist; |
eb1d1641 HX |
206 | }; |
207 | ||
208 | struct net_bridge_mdb_htable | |
209 | { | |
210 | struct hlist_head *mhash; | |
211 | struct rcu_head rcu; | |
212 | struct net_bridge_mdb_htable *old; | |
213 | u32 size; | |
214 | u32 max; | |
215 | u32 secret; | |
216 | u32 ver; | |
217 | }; | |
218 | ||
1f90c7f3 | 219 | struct net_bridge_port { |
1da177e4 LT |
220 | struct net_bridge *br; |
221 | struct net_device *dev; | |
222 | struct list_head list; | |
223 | ||
1f90c7f3 NA |
224 | unsigned long flags; |
225 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
226 | struct net_bridge_vlan_group __rcu *vlgrp; | |
227 | #endif | |
228 | ||
1da177e4 LT |
229 | /* STP */ |
230 | u8 priority; | |
231 | u8 state; | |
232 | u16 port_no; | |
233 | unsigned char topology_change_ack; | |
234 | unsigned char config_pending; | |
235 | port_id port_id; | |
236 | port_id designated_port; | |
237 | bridge_id designated_root; | |
238 | bridge_id designated_bridge; | |
239 | u32 path_cost; | |
240 | u32 designated_cost; | |
0c03150e | 241 | unsigned long designated_age; |
1da177e4 LT |
242 | |
243 | struct timer_list forward_delay_timer; | |
244 | struct timer_list hold_timer; | |
245 | struct timer_list message_age_timer; | |
246 | struct kobject kobj; | |
247 | struct rcu_head rcu; | |
3982d3d2 | 248 | |
eb1d1641 | 249 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
90010b36 | 250 | struct bridge_mcast_own_query ip4_own_query; |
cc0fdd80 | 251 | #if IS_ENABLED(CONFIG_IPV6) |
90010b36 | 252 | struct bridge_mcast_own_query ip6_own_query; |
cc0fdd80 | 253 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
eb1d1641 | 254 | unsigned char multicast_router; |
1080ab95 | 255 | struct bridge_mcast_stats __percpu *mcast_stats; |
eb1d1641 | 256 | struct timer_list multicast_router_timer; |
eb1d1641 HX |
257 | struct hlist_head mglist; |
258 | struct hlist_node rlist; | |
259 | #endif | |
e0f43752 SA |
260 | |
261 | #ifdef CONFIG_SYSFS | |
262 | char sysfs_name[IFNAMSIZ]; | |
263 | #endif | |
91d2c34a HX |
264 | |
265 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
266 | struct netpoll *np; | |
267 | #endif | |
6bc506b4 IS |
268 | #ifdef CONFIG_NET_SWITCHDEV |
269 | int offload_fwd_mark; | |
270 | #endif | |
1da177e4 LT |
271 | }; |
272 | ||
e028e4b8 | 273 | #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) |
f3a6ddf1 | 274 | #define br_promisc_port(p) ((p)->flags & BR_PROMISC) |
e028e4b8 | 275 | |
f350a0a8 JP |
276 | #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) |
277 | ||
b5ed54e9 | 278 | static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) |
279 | { | |
716ec052 | 280 | return rcu_dereference(dev->rx_handler_data); |
b5ed54e9 | 281 | } |
282 | ||
1fb1754a | 283 | static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) |
b5ed54e9 | 284 | { |
ec1e5610 ED |
285 | return br_port_exists(dev) ? |
286 | rtnl_dereference(dev->rx_handler_data) : NULL; | |
b5ed54e9 | 287 | } |
288 | ||
0baa10ff AS |
289 | static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) |
290 | { | |
291 | return br_port_exists(dev) ? | |
292 | rcu_dereference_rtnl(dev->rx_handler_data) : NULL; | |
293 | } | |
294 | ||
1f90c7f3 | 295 | struct net_bridge { |
1da177e4 | 296 | spinlock_t lock; |
1f90c7f3 | 297 | spinlock_t hash_lock; |
1da177e4 LT |
298 | struct list_head port_list; |
299 | struct net_device *dev; | |
8f84985f | 300 | struct pcpu_sw_netstats __percpu *stats; |
1f90c7f3 NA |
301 | /* These fields are accessed on each packet */ |
302 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
303 | u8 vlan_enabled; | |
304 | u8 vlan_stats_enabled; | |
305 | __be16 vlan_proto; | |
306 | u16 default_pvid; | |
307 | struct net_bridge_vlan_group __rcu *vlgrp; | |
308 | #endif | |
309 | ||
1da177e4 | 310 | struct hlist_head hash[BR_HASH_SIZE]; |
34666d46 | 311 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
efb6de9b BT |
312 | union { |
313 | struct rtable fake_rtable; | |
314 | struct rt6_info fake_rt6_info; | |
315 | }; | |
4df53d8b PM |
316 | bool nf_call_iptables; |
317 | bool nf_call_ip6tables; | |
318 | bool nf_call_arptables; | |
4adf0af6 | 319 | #endif |
515853cc | 320 | u16 group_fwd_mask; |
f2808d22 | 321 | u16 group_fwd_mask_required; |
515853cc | 322 | |
1da177e4 LT |
323 | /* STP */ |
324 | bridge_id designated_root; | |
325 | bridge_id bridge_id; | |
326 | u32 root_path_cost; | |
1f90c7f3 NA |
327 | unsigned char topology_change; |
328 | unsigned char topology_change_detected; | |
329 | u16 root_port; | |
1da177e4 LT |
330 | unsigned long max_age; |
331 | unsigned long hello_time; | |
332 | unsigned long forward_delay; | |
1da177e4 | 333 | unsigned long ageing_time; |
34d8acd8 | 334 | unsigned long bridge_max_age; |
1da177e4 LT |
335 | unsigned long bridge_hello_time; |
336 | unsigned long bridge_forward_delay; | |
34d8acd8 | 337 | unsigned long bridge_ageing_time; |
1da177e4 | 338 | |
fda93d92 | 339 | u8 group_addr[ETH_ALEN]; |
204177f3 | 340 | bool group_addr_set; |
9cde0708 SH |
341 | |
342 | enum { | |
343 | BR_NO_STP, /* no spanning tree */ | |
344 | BR_KERNEL_STP, /* old STP in kernel */ | |
345 | BR_USER_STP, /* new RSTP in userspace */ | |
346 | } stp_enabled; | |
347 | ||
eb1d1641 HX |
348 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
349 | unsigned char multicast_router; | |
350 | ||
351 | u8 multicast_disabled:1; | |
c5c23260 | 352 | u8 multicast_querier:1; |
1c8ad5bf | 353 | u8 multicast_query_use_ifaddr:1; |
0888d5f3 | 354 | u8 has_ipv6_addr:1; |
1080ab95 | 355 | u8 multicast_stats_enabled:1; |
eb1d1641 HX |
356 | |
357 | u32 hash_elasticity; | |
358 | u32 hash_max; | |
359 | ||
360 | u32 multicast_last_member_count; | |
eb1d1641 HX |
361 | u32 multicast_startup_query_count; |
362 | ||
5e923585 NA |
363 | u8 multicast_igmp_version; |
364 | ||
eb1d1641 HX |
365 | unsigned long multicast_last_member_interval; |
366 | unsigned long multicast_membership_interval; | |
367 | unsigned long multicast_querier_interval; | |
368 | unsigned long multicast_query_interval; | |
369 | unsigned long multicast_query_response_interval; | |
370 | unsigned long multicast_startup_query_interval; | |
371 | ||
372 | spinlock_t multicast_lock; | |
e8051688 | 373 | struct net_bridge_mdb_htable __rcu *mdb; |
eb1d1641 | 374 | struct hlist_head router_list; |
eb1d1641 HX |
375 | |
376 | struct timer_list multicast_router_timer; | |
90010b36 LL |
377 | struct bridge_mcast_other_query ip4_other_query; |
378 | struct bridge_mcast_own_query ip4_own_query; | |
dc4eb53a | 379 | struct bridge_mcast_querier ip4_querier; |
1080ab95 | 380 | struct bridge_mcast_stats __percpu *mcast_stats; |
cc0fdd80 | 381 | #if IS_ENABLED(CONFIG_IPV6) |
90010b36 LL |
382 | struct bridge_mcast_other_query ip6_other_query; |
383 | struct bridge_mcast_own_query ip6_own_query; | |
dc4eb53a | 384 | struct bridge_mcast_querier ip6_querier; |
aa2ae3e7 | 385 | u8 multicast_mld_version; |
cc0fdd80 | 386 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
eb1d1641 HX |
387 | #endif |
388 | ||
1da177e4 LT |
389 | struct timer_list hello_timer; |
390 | struct timer_list tcn_timer; | |
391 | struct timer_list topology_change_timer; | |
f7cdee8a | 392 | struct delayed_work gc_work; |
43b98c4a | 393 | struct kobject *ifobj; |
e028e4b8 | 394 | u32 auto_cnt; |
6bc506b4 IS |
395 | |
396 | #ifdef CONFIG_NET_SWITCHDEV | |
397 | int offload_fwd_mark; | |
398 | #endif | |
1da177e4 LT |
399 | }; |
400 | ||
68b7c895 HX |
401 | struct br_input_skb_cb { |
402 | struct net_device *brdev; | |
93fdd47e | 403 | |
32dec5dd | 404 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
eb1d1641 HX |
405 | int igmp; |
406 | int mrouters_only; | |
32dec5dd | 407 | #endif |
93fdd47e | 408 | |
842a9ae0 | 409 | bool proxyarp_replied; |
93fdd47e | 410 | |
20adfa1a VY |
411 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
412 | bool vlan_filtered; | |
413 | #endif | |
6bc506b4 IS |
414 | |
415 | #ifdef CONFIG_NET_SWITCHDEV | |
416 | int offload_fwd_mark; | |
417 | #endif | |
68b7c895 HX |
418 | }; |
419 | ||
420 | #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) | |
421 | ||
32dec5dd YH |
422 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
423 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) | |
424 | #else | |
425 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) | |
426 | #endif | |
427 | ||
28a16c97 | 428 | #define br_printk(level, br, format, args...) \ |
429 | printk(level "%s: " format, (br)->dev->name, ##args) | |
430 | ||
431 | #define br_err(__br, format, args...) \ | |
432 | br_printk(KERN_ERR, __br, format, ##args) | |
433 | #define br_warn(__br, format, args...) \ | |
434 | br_printk(KERN_WARNING, __br, format, ##args) | |
435 | #define br_notice(__br, format, args...) \ | |
436 | br_printk(KERN_NOTICE, __br, format, ##args) | |
437 | #define br_info(__br, format, args...) \ | |
438 | br_printk(KERN_INFO, __br, format, ##args) | |
439 | ||
440 | #define br_debug(br, format, args...) \ | |
441 | pr_debug("%s: " format, (br)->dev->name, ##args) | |
442 | ||
1da177e4 LT |
443 | /* called under bridge lock */ |
444 | static inline int br_is_root_bridge(const struct net_bridge *br) | |
445 | { | |
446 | return !memcmp(&br->bridge_id, &br->designated_root, 8); | |
447 | } | |
448 | ||
2594e906 NA |
449 | /* check if a VLAN entry is global */ |
450 | static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) | |
451 | { | |
452 | return v->flags & BRIDGE_VLAN_INFO_MASTER; | |
453 | } | |
454 | ||
455 | /* check if a VLAN entry is used by the bridge */ | |
456 | static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) | |
457 | { | |
458 | return v->flags & BRIDGE_VLAN_INFO_BRENTRY; | |
459 | } | |
460 | ||
6be144f6 | 461 | /* check if we should use the vlan entry, returns false if it's only context */ |
2594e906 NA |
462 | static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) |
463 | { | |
464 | if (br_vlan_is_master(v)) { | |
465 | if (br_vlan_is_brentry(v)) | |
466 | return true; | |
467 | else | |
468 | return false; | |
469 | } | |
470 | ||
471 | return true; | |
472 | } | |
473 | ||
1da177e4 | 474 | /* br_device.c */ |
348662a1 JP |
475 | void br_dev_setup(struct net_device *dev); |
476 | void br_dev_delete(struct net_device *dev, struct list_head *list); | |
477 | netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); | |
cfb478da | 478 | #ifdef CONFIG_NET_POLL_CONTROLLER |
91d2c34a HX |
479 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
480 | struct sk_buff *skb) | |
481 | { | |
482 | struct netpoll *np = p->np; | |
483 | ||
484 | if (np) | |
485 | netpoll_send_skb(np, skb); | |
486 | } | |
487 | ||
a8779ec1 | 488 | int br_netpoll_enable(struct net_bridge_port *p); |
348662a1 | 489 | void br_netpoll_disable(struct net_bridge_port *p); |
cfb478da | 490 | #else |
9f70b0fc | 491 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
91d2c34a HX |
492 | struct sk_buff *skb) |
493 | { | |
494 | } | |
cfb478da | 495 | |
a8779ec1 | 496 | static inline int br_netpoll_enable(struct net_bridge_port *p) |
91d2c34a HX |
497 | { |
498 | return 0; | |
499 | } | |
500 | ||
501 | static inline void br_netpoll_disable(struct net_bridge_port *p) | |
502 | { | |
503 | } | |
cfb478da | 504 | #endif |
1da177e4 LT |
505 | |
506 | /* br_fdb.c */ | |
348662a1 JP |
507 | int br_fdb_init(void); |
508 | void br_fdb_fini(void); | |
509 | void br_fdb_flush(struct net_bridge *br); | |
424bb9c9 TM |
510 | void br_fdb_find_delete_local(struct net_bridge *br, |
511 | const struct net_bridge_port *p, | |
512 | const unsigned char *addr, u16 vid); | |
348662a1 JP |
513 | void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); |
514 | void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); | |
f7cdee8a | 515 | void br_fdb_cleanup(struct work_struct *work); |
348662a1 | 516 | void br_fdb_delete_by_port(struct net_bridge *br, |
1ea2d020 | 517 | const struct net_bridge_port *p, u16 vid, int do_all); |
bfd0aeac NA |
518 | struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, |
519 | const unsigned char *addr, | |
520 | __u16 vid); | |
348662a1 JP |
521 | int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); |
522 | int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, | |
523 | unsigned long off); | |
524 | int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, | |
525 | const unsigned char *addr, u16 vid); | |
526 | void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, | |
a5642ab4 | 527 | const unsigned char *addr, u16 vid, bool added_by_user); |
348662a1 JP |
528 | |
529 | int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], | |
f6f6424b | 530 | struct net_device *dev, const unsigned char *addr, u16 vid); |
348662a1 | 531 | int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, |
f6f6424b | 532 | const unsigned char *addr, u16 vid, u16 nlh_flags); |
348662a1 | 533 | int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, |
d297653d | 534 | struct net_device *dev, struct net_device *fdev, int *idx); |
8db24af7 VY |
535 | int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); |
536 | void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); | |
3aeb6617 JP |
537 | int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, |
538 | const unsigned char *addr, u16 vid); | |
539 | int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, | |
540 | const unsigned char *addr, u16 vid); | |
9fe8bcec AS |
541 | void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, |
542 | const unsigned char *addr, u16 vid); | |
1da177e4 LT |
543 | |
544 | /* br_forward.c */ | |
8addd5e7 NA |
545 | enum br_pkt_type { |
546 | BR_PKT_UNICAST, | |
547 | BR_PKT_MULTICAST, | |
548 | BR_PKT_BROADCAST | |
549 | }; | |
0c4b51f0 | 550 | int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); |
b35c5f63 | 551 | void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, |
37b090e6 | 552 | bool local_rcv, bool local_orig); |
0c4b51f0 | 553 | int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); |
37b090e6 | 554 | void br_flood(struct net_bridge *br, struct sk_buff *skb, |
8addd5e7 | 555 | enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); |
1da177e4 LT |
556 | |
557 | /* br_if.c */ | |
348662a1 JP |
558 | void br_port_carrier_check(struct net_bridge_port *p); |
559 | int br_add_bridge(struct net *net, const char *name); | |
560 | int br_del_bridge(struct net *net, const char *name); | |
348662a1 JP |
561 | int br_add_if(struct net_bridge *br, struct net_device *dev); |
562 | int br_del_if(struct net_bridge *br, struct net_device *dev); | |
563 | int br_min_mtu(const struct net_bridge *br); | |
564 | netdev_features_t br_features_recompute(struct net_bridge *br, | |
565 | netdev_features_t features); | |
e028e4b8 | 566 | void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); |
2796d0c6 | 567 | void br_manage_promisc(struct net_bridge *br); |
1da177e4 LT |
568 | |
569 | /* br_input.c */ | |
0c4b51f0 | 570 | int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); |
348662a1 | 571 | rx_handler_result_t br_handle_frame(struct sk_buff **pskb); |
1da177e4 | 572 | |
859828c0 JP |
573 | static inline bool br_rx_handler_check_rcu(const struct net_device *dev) |
574 | { | |
575 | return rcu_dereference(dev->rx_handler) == br_handle_frame; | |
576 | } | |
577 | ||
578 | static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) | |
579 | { | |
580 | return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; | |
581 | } | |
582 | ||
1da177e4 | 583 | /* br_ioctl.c */ |
348662a1 JP |
584 | int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); |
585 | int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, | |
586 | void __user *arg); | |
1da177e4 | 587 | |
eb1d1641 HX |
588 | /* br_multicast.c */ |
589 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING | |
2ce297fc | 590 | extern unsigned int br_mdb_rehash_seq; |
348662a1 | 591 | int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, |
394efd19 | 592 | struct sk_buff *skb, u16 vid); |
348662a1 JP |
593 | struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, |
594 | struct sk_buff *skb, u16 vid); | |
1080ab95 | 595 | int br_multicast_add_port(struct net_bridge_port *port); |
348662a1 JP |
596 | void br_multicast_del_port(struct net_bridge_port *port); |
597 | void br_multicast_enable_port(struct net_bridge_port *port); | |
598 | void br_multicast_disable_port(struct net_bridge_port *port); | |
599 | void br_multicast_init(struct net_bridge *br); | |
600 | void br_multicast_open(struct net_bridge *br); | |
601 | void br_multicast_stop(struct net_bridge *br); | |
e10177ab | 602 | void br_multicast_dev_del(struct net_bridge *br); |
37b090e6 NA |
603 | void br_multicast_flood(struct net_bridge_mdb_entry *mdst, |
604 | struct sk_buff *skb, bool local_rcv, bool local_orig); | |
348662a1 JP |
605 | int br_multicast_set_router(struct net_bridge *br, unsigned long val); |
606 | int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); | |
607 | int br_multicast_toggle(struct net_bridge *br, unsigned long val); | |
608 | int br_multicast_set_querier(struct net_bridge *br, unsigned long val); | |
609 | int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); | |
5e923585 | 610 | int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); |
aa2ae3e7 NA |
611 | #if IS_ENABLED(CONFIG_IPV6) |
612 | int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); | |
613 | #endif | |
348662a1 JP |
614 | struct net_bridge_mdb_entry * |
615 | br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); | |
616 | struct net_bridge_mdb_entry * | |
617 | br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, | |
618 | struct br_ip *group); | |
619 | void br_multicast_free_pg(struct rcu_head *head); | |
620 | struct net_bridge_port_group * | |
621 | br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, | |
622 | struct net_bridge_port_group __rcu *next, | |
6db6f0ea | 623 | unsigned char flags, const unsigned char *src); |
348662a1 JP |
624 | void br_mdb_init(void); |
625 | void br_mdb_uninit(void); | |
45ebcce5 ER |
626 | void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, |
627 | struct br_ip *group, int type, u8 flags); | |
949f1e39 SA |
628 | void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, |
629 | int type); | |
1080ab95 | 630 | void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, |
a65056ec | 631 | const struct sk_buff *skb, u8 type, u8 dir); |
1080ab95 | 632 | int br_multicast_init_stats(struct net_bridge *br); |
b6fe0440 | 633 | void br_multicast_uninit_stats(struct net_bridge *br); |
1080ab95 NA |
634 | void br_multicast_get_stats(const struct net_bridge *br, |
635 | const struct net_bridge_port *p, | |
636 | struct br_mcast_stats *dest); | |
85b35269 | 637 | |
cfd56754 CW |
638 | #define mlock_dereference(X, br) \ |
639 | rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) | |
640 | ||
85b35269 SS |
641 | static inline bool br_multicast_is_router(struct net_bridge *br) |
642 | { | |
643 | return br->multicast_router == 2 || | |
644 | (br->multicast_router == 1 && | |
645 | timer_pending(&br->multicast_router_timer)); | |
646 | } | |
b00589af | 647 | |
cc0fdd80 LL |
648 | static inline bool |
649 | __br_multicast_querier_exists(struct net_bridge *br, | |
0888d5f3 | 650 | struct bridge_mcast_other_query *querier, |
651 | const bool is_ipv6) | |
b00589af | 652 | { |
0888d5f3 | 653 | bool own_querier_enabled; |
654 | ||
655 | if (br->multicast_querier) { | |
656 | if (is_ipv6 && !br->has_ipv6_addr) | |
657 | own_querier_enabled = false; | |
658 | else | |
659 | own_querier_enabled = true; | |
660 | } else { | |
661 | own_querier_enabled = false; | |
662 | } | |
663 | ||
cc0fdd80 | 664 | return time_is_before_jiffies(querier->delay_time) && |
0888d5f3 | 665 | (own_querier_enabled || timer_pending(&querier->timer)); |
cc0fdd80 LL |
666 | } |
667 | ||
668 | static inline bool br_multicast_querier_exists(struct net_bridge *br, | |
669 | struct ethhdr *eth) | |
670 | { | |
671 | switch (eth->h_proto) { | |
672 | case (htons(ETH_P_IP)): | |
0888d5f3 | 673 | return __br_multicast_querier_exists(br, |
674 | &br->ip4_other_query, false); | |
cc0fdd80 LL |
675 | #if IS_ENABLED(CONFIG_IPV6) |
676 | case (htons(ETH_P_IPV6)): | |
0888d5f3 | 677 | return __br_multicast_querier_exists(br, |
678 | &br->ip6_other_query, true); | |
cc0fdd80 LL |
679 | #endif |
680 | default: | |
681 | return false; | |
682 | } | |
b00589af | 683 | } |
1080ab95 NA |
684 | |
685 | static inline int br_multicast_igmp_type(const struct sk_buff *skb) | |
686 | { | |
687 | return BR_INPUT_SKB_CB(skb)->igmp; | |
688 | } | |
eb1d1641 HX |
689 | #else |
690 | static inline int br_multicast_rcv(struct net_bridge *br, | |
691 | struct net_bridge_port *port, | |
06499098 VY |
692 | struct sk_buff *skb, |
693 | u16 vid) | |
eb1d1641 HX |
694 | { |
695 | return 0; | |
696 | } | |
697 | ||
698 | static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, | |
fbca58a2 | 699 | struct sk_buff *skb, u16 vid) |
eb1d1641 HX |
700 | { |
701 | return NULL; | |
702 | } | |
703 | ||
1080ab95 | 704 | static inline int br_multicast_add_port(struct net_bridge_port *port) |
eb1d1641 | 705 | { |
1080ab95 | 706 | return 0; |
eb1d1641 HX |
707 | } |
708 | ||
709 | static inline void br_multicast_del_port(struct net_bridge_port *port) | |
710 | { | |
711 | } | |
712 | ||
713 | static inline void br_multicast_enable_port(struct net_bridge_port *port) | |
714 | { | |
715 | } | |
716 | ||
717 | static inline void br_multicast_disable_port(struct net_bridge_port *port) | |
718 | { | |
719 | } | |
720 | ||
721 | static inline void br_multicast_init(struct net_bridge *br) | |
722 | { | |
723 | } | |
724 | ||
725 | static inline void br_multicast_open(struct net_bridge *br) | |
726 | { | |
727 | } | |
728 | ||
729 | static inline void br_multicast_stop(struct net_bridge *br) | |
730 | { | |
731 | } | |
5cb5e947 | 732 | |
a7ce45a7 NA |
733 | static inline void br_multicast_dev_del(struct net_bridge *br) |
734 | { | |
735 | } | |
736 | ||
37b090e6 NA |
737 | static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, |
738 | struct sk_buff *skb, | |
739 | bool local_rcv, bool local_orig) | |
5cb5e947 HX |
740 | { |
741 | } | |
742 | ||
eb1d1641 HX |
743 | static inline bool br_multicast_is_router(struct net_bridge *br) |
744 | { | |
85b35269 | 745 | return 0; |
eb1d1641 | 746 | } |
37b090e6 | 747 | |
cc0fdd80 LL |
748 | static inline bool br_multicast_querier_exists(struct net_bridge *br, |
749 | struct ethhdr *eth) | |
b00589af LL |
750 | { |
751 | return false; | |
752 | } | |
37b090e6 | 753 | |
fdb184d1 RR |
754 | static inline void br_mdb_init(void) |
755 | { | |
756 | } | |
37b090e6 | 757 | |
fdb184d1 RR |
758 | static inline void br_mdb_uninit(void) |
759 | { | |
760 | } | |
1080ab95 NA |
761 | |
762 | static inline void br_multicast_count(struct net_bridge *br, | |
763 | const struct net_bridge_port *p, | |
a65056ec NA |
764 | const struct sk_buff *skb, |
765 | u8 type, u8 dir) | |
1080ab95 NA |
766 | { |
767 | } | |
768 | ||
769 | static inline int br_multicast_init_stats(struct net_bridge *br) | |
770 | { | |
771 | return 0; | |
772 | } | |
773 | ||
b6fe0440 IS |
774 | static inline void br_multicast_uninit_stats(struct net_bridge *br) |
775 | { | |
776 | } | |
777 | ||
1080ab95 NA |
778 | static inline int br_multicast_igmp_type(const struct sk_buff *skb) |
779 | { | |
780 | return 0; | |
781 | } | |
85b35269 | 782 | #endif |
eb1d1641 | 783 | |
243a2e63 VY |
784 | /* br_vlan.c */ |
785 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
77751ee8 NA |
786 | bool br_allowed_ingress(const struct net_bridge *br, |
787 | struct net_bridge_vlan_group *vg, struct sk_buff *skb, | |
788 | u16 *vid); | |
789 | bool br_allowed_egress(struct net_bridge_vlan_group *vg, | |
348662a1 | 790 | const struct sk_buff *skb); |
e0d7968a | 791 | bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); |
348662a1 | 792 | struct sk_buff *br_handle_vlan(struct net_bridge *br, |
11538d03 | 793 | const struct net_bridge_port *port, |
2594e906 | 794 | struct net_bridge_vlan_group *vg, |
348662a1 JP |
795 | struct sk_buff *skb); |
796 | int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags); | |
797 | int br_vlan_delete(struct net_bridge *br, u16 vid); | |
798 | void br_vlan_flush(struct net_bridge *br); | |
2594e906 | 799 | struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); |
204177f3 | 800 | void br_recalculate_fwd_mask(struct net_bridge *br); |
a7854037 | 801 | int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
348662a1 | 802 | int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
d2d427b3 | 803 | int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); |
204177f3 | 804 | int br_vlan_set_proto(struct net_bridge *br, unsigned long val); |
6dada9b1 | 805 | int br_vlan_set_stats(struct net_bridge *br, unsigned long val); |
5be5a2df | 806 | int br_vlan_init(struct net_bridge *br); |
96a20d9d | 807 | int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); |
0f963b75 | 808 | int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid); |
348662a1 JP |
809 | int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags); |
810 | int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); | |
811 | void nbp_vlan_flush(struct net_bridge_port *port); | |
5be5a2df | 812 | int nbp_vlan_init(struct net_bridge_port *port); |
2594e906 | 813 | int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); |
a60c0903 NA |
814 | void br_vlan_get_stats(const struct net_bridge_vlan *v, |
815 | struct br_vlan_stats *stats); | |
a37b85c9 | 816 | |
2594e906 NA |
817 | static inline struct net_bridge_vlan_group *br_vlan_group( |
818 | const struct net_bridge *br) | |
a37b85c9 | 819 | { |
907b1e6e | 820 | return rtnl_dereference(br->vlgrp); |
a37b85c9 VY |
821 | } |
822 | ||
2594e906 NA |
823 | static inline struct net_bridge_vlan_group *nbp_vlan_group( |
824 | const struct net_bridge_port *p) | |
a37b85c9 | 825 | { |
907b1e6e NA |
826 | return rtnl_dereference(p->vlgrp); |
827 | } | |
828 | ||
829 | static inline struct net_bridge_vlan_group *br_vlan_group_rcu( | |
830 | const struct net_bridge *br) | |
831 | { | |
832 | return rcu_dereference(br->vlgrp); | |
833 | } | |
834 | ||
835 | static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( | |
836 | const struct net_bridge_port *p) | |
837 | { | |
838 | return rcu_dereference(p->vlgrp); | |
a37b85c9 VY |
839 | } |
840 | ||
841 | /* Since bridge now depends on 8021Q module, but the time bridge sees the | |
842 | * skb, the vlan tag will always be present if the frame was tagged. | |
843 | */ | |
844 | static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) | |
845 | { | |
846 | int err = 0; | |
847 | ||
2594e906 | 848 | if (skb_vlan_tag_present(skb)) { |
df8a39de | 849 | *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; |
2594e906 | 850 | } else { |
a37b85c9 VY |
851 | *vid = 0; |
852 | err = -EINVAL; | |
853 | } | |
854 | ||
855 | return err; | |
856 | } | |
78851988 | 857 | |
77751ee8 | 858 | static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) |
2594e906 | 859 | { |
77751ee8 | 860 | if (!vg) |
2594e906 NA |
861 | return 0; |
862 | ||
863 | smp_rmb(); | |
77751ee8 | 864 | return vg->pvid; |
78851988 VY |
865 | } |
866 | ||
243a2e63 | 867 | #else |
77751ee8 NA |
868 | static inline bool br_allowed_ingress(const struct net_bridge *br, |
869 | struct net_bridge_vlan_group *vg, | |
78851988 VY |
870 | struct sk_buff *skb, |
871 | u16 *vid) | |
a37b85c9 VY |
872 | { |
873 | return true; | |
874 | } | |
875 | ||
2594e906 | 876 | static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, |
85f46c6b VY |
877 | const struct sk_buff *skb) |
878 | { | |
879 | return true; | |
880 | } | |
881 | ||
e0d7968a TM |
882 | static inline bool br_should_learn(struct net_bridge_port *p, |
883 | struct sk_buff *skb, u16 *vid) | |
884 | { | |
885 | return true; | |
886 | } | |
887 | ||
78851988 | 888 | static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, |
11538d03 | 889 | const struct net_bridge_port *port, |
2594e906 | 890 | struct net_bridge_vlan_group *vg, |
78851988 VY |
891 | struct sk_buff *skb) |
892 | { | |
893 | return skb; | |
894 | } | |
895 | ||
552406c4 | 896 | static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags) |
243a2e63 VY |
897 | { |
898 | return -EOPNOTSUPP; | |
899 | } | |
900 | ||
901 | static inline int br_vlan_delete(struct net_bridge *br, u16 vid) | |
902 | { | |
903 | return -EOPNOTSUPP; | |
904 | } | |
905 | ||
906 | static inline void br_vlan_flush(struct net_bridge *br) | |
907 | { | |
908 | } | |
909 | ||
204177f3 TM |
910 | static inline void br_recalculate_fwd_mask(struct net_bridge *br) |
911 | { | |
912 | } | |
913 | ||
5be5a2df | 914 | static inline int br_vlan_init(struct net_bridge *br) |
8580e211 | 915 | { |
5be5a2df | 916 | return 0; |
8580e211 TM |
917 | } |
918 | ||
552406c4 | 919 | static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags) |
243a2e63 VY |
920 | { |
921 | return -EOPNOTSUPP; | |
922 | } | |
923 | ||
924 | static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) | |
925 | { | |
926 | return -EOPNOTSUPP; | |
927 | } | |
928 | ||
929 | static inline void nbp_vlan_flush(struct net_bridge_port *port) | |
930 | { | |
931 | } | |
932 | ||
2594e906 NA |
933 | static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, |
934 | u16 vid) | |
a37b85c9 VY |
935 | { |
936 | return NULL; | |
937 | } | |
938 | ||
2594e906 | 939 | static inline int nbp_vlan_init(struct net_bridge_port *port) |
bc9a25d2 | 940 | { |
2594e906 | 941 | return 0; |
bc9a25d2 VY |
942 | } |
943 | ||
2594e906 | 944 | static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) |
5be5a2df VY |
945 | { |
946 | return 0; | |
947 | } | |
948 | ||
77751ee8 | 949 | static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) |
78851988 | 950 | { |
3df6bf45 | 951 | return 0; |
78851988 | 952 | } |
2796d0c6 | 953 | |
a7854037 NA |
954 | static inline int __br_vlan_filter_toggle(struct net_bridge *br, |
955 | unsigned long val) | |
956 | { | |
957 | return -EOPNOTSUPP; | |
958 | } | |
2594e906 NA |
959 | |
960 | static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, | |
961 | u32 filter_mask) | |
962 | { | |
963 | return 0; | |
964 | } | |
965 | ||
966 | static inline struct net_bridge_vlan_group *br_vlan_group( | |
967 | const struct net_bridge *br) | |
968 | { | |
969 | return NULL; | |
970 | } | |
971 | ||
972 | static inline struct net_bridge_vlan_group *nbp_vlan_group( | |
973 | const struct net_bridge_port *p) | |
974 | { | |
975 | return NULL; | |
976 | } | |
907b1e6e NA |
977 | |
978 | static inline struct net_bridge_vlan_group *br_vlan_group_rcu( | |
979 | const struct net_bridge *br) | |
980 | { | |
981 | return NULL; | |
982 | } | |
983 | ||
984 | static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( | |
985 | const struct net_bridge_port *p) | |
986 | { | |
987 | return NULL; | |
988 | } | |
a60c0903 NA |
989 | |
990 | static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, | |
991 | struct br_vlan_stats *stats) | |
992 | { | |
993 | } | |
243a2e63 VY |
994 | #endif |
995 | ||
1a4ba64d PNA |
996 | struct nf_br_ops { |
997 | int (*br_dev_xmit_hook)(struct sk_buff *skb); | |
998 | }; | |
999 | extern const struct nf_br_ops __rcu *nf_br_ops; | |
1000 | ||
1da177e4 | 1001 | /* br_netfilter.c */ |
34666d46 PNA |
1002 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
1003 | int br_nf_core_init(void); | |
1004 | void br_nf_core_fini(void); | |
348662a1 | 1005 | void br_netfilter_rtable_init(struct net_bridge *); |
c0909713 | 1006 | #else |
34666d46 PNA |
1007 | static inline int br_nf_core_init(void) { return 0; } |
1008 | static inline void br_nf_core_fini(void) {} | |
4adf0af6 | 1009 | #define br_netfilter_rtable_init(x) |
c0909713 | 1010 | #endif |
1da177e4 LT |
1011 | |
1012 | /* br_stp.c */ | |
775dd692 | 1013 | void br_set_state(struct net_bridge_port *p, unsigned int state); |
348662a1 JP |
1014 | struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); |
1015 | void br_init_port(struct net_bridge_port *p); | |
1016 | void br_become_designated_port(struct net_bridge_port *p); | |
1da177e4 | 1017 | |
348662a1 JP |
1018 | void __br_set_forward_delay(struct net_bridge *br, unsigned long t); |
1019 | int br_set_forward_delay(struct net_bridge *br, unsigned long x); | |
1020 | int br_set_hello_time(struct net_bridge *br, unsigned long x); | |
1021 | int br_set_max_age(struct net_bridge *br, unsigned long x); | |
82dd4332 | 1022 | int __set_ageing_time(struct net_device *dev, unsigned long t); |
9e0b27fe | 1023 | int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); |
14f98f25 | 1024 | |
1025 | ||
1da177e4 | 1026 | /* br_stp_if.c */ |
348662a1 JP |
1027 | void br_stp_enable_bridge(struct net_bridge *br); |
1028 | void br_stp_disable_bridge(struct net_bridge *br); | |
1029 | void br_stp_set_enabled(struct net_bridge *br, unsigned long val); | |
1030 | void br_stp_enable_port(struct net_bridge_port *p); | |
1031 | void br_stp_disable_port(struct net_bridge_port *p); | |
1032 | bool br_stp_recalculate_bridge_id(struct net_bridge *br); | |
1033 | void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); | |
1034 | void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); | |
1035 | int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); | |
1036 | int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); | |
1037 | ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); | |
1da177e4 LT |
1038 | |
1039 | /* br_stp_bpdu.c */ | |
7c85fbf0 | 1040 | struct stp_proto; |
348662a1 JP |
1041 | void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, |
1042 | struct net_device *dev); | |
1da177e4 LT |
1043 | |
1044 | /* br_stp_timer.c */ | |
348662a1 JP |
1045 | void br_stp_timer_init(struct net_bridge *br); |
1046 | void br_stp_port_timer_init(struct net_bridge_port *p); | |
1047 | unsigned long br_timer_value(const struct timer_list *timer); | |
1da177e4 LT |
1048 | |
1049 | /* br.c */ | |
e6373c4c | 1050 | #if IS_ENABLED(CONFIG_ATM_LANE) |
da678292 MM |
1051 | extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); |
1052 | #endif | |
1da177e4 | 1053 | |
11dc1f36 | 1054 | /* br_netlink.c */ |
149ddd83 | 1055 | extern struct rtnl_link_ops br_link_ops; |
348662a1 JP |
1056 | int br_netlink_init(void); |
1057 | void br_netlink_fini(void); | |
1058 | void br_ifinfo_notify(int event, struct net_bridge_port *port); | |
add511b3 RP |
1059 | int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); |
1060 | int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); | |
348662a1 | 1061 | int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, |
46c264da | 1062 | u32 filter_mask, int nlflags); |
11dc1f36 | 1063 | |
1da177e4 LT |
1064 | #ifdef CONFIG_SYSFS |
1065 | /* br_sysfs_if.c */ | |
52cf25d0 | 1066 | extern const struct sysfs_ops brport_sysfs_ops; |
348662a1 JP |
1067 | int br_sysfs_addif(struct net_bridge_port *p); |
1068 | int br_sysfs_renameif(struct net_bridge_port *p); | |
1da177e4 LT |
1069 | |
1070 | /* br_sysfs_br.c */ | |
348662a1 JP |
1071 | int br_sysfs_addbr(struct net_device *dev); |
1072 | void br_sysfs_delbr(struct net_device *dev); | |
1da177e4 LT |
1073 | |
1074 | #else | |
1075 | ||
0cb2bbbe LJ |
1076 | static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } |
1077 | static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } | |
1078 | static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } | |
1079 | static inline void br_sysfs_delbr(struct net_device *dev) { return; } | |
1da177e4 LT |
1080 | #endif /* CONFIG_SYSFS */ |
1081 | ||
6bc506b4 IS |
1082 | /* br_switchdev.c */ |
1083 | #ifdef CONFIG_NET_SWITCHDEV | |
1084 | int nbp_switchdev_mark_set(struct net_bridge_port *p); | |
1085 | void nbp_switchdev_frame_mark(const struct net_bridge_port *p, | |
1086 | struct sk_buff *skb); | |
1087 | bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, | |
1088 | const struct sk_buff *skb); | |
3922285d AS |
1089 | int br_switchdev_set_port_flag(struct net_bridge_port *p, |
1090 | unsigned long flags, | |
1091 | unsigned long mask); | |
6b26b51b AS |
1092 | void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, |
1093 | int type); | |
f1c2eddf IS |
1094 | |
1095 | static inline void br_switchdev_frame_unmark(struct sk_buff *skb) | |
1096 | { | |
1097 | skb->offload_fwd_mark = 0; | |
1098 | } | |
6bc506b4 IS |
1099 | #else |
1100 | static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) | |
1101 | { | |
1102 | return 0; | |
1103 | } | |
1104 | ||
1105 | static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, | |
1106 | struct sk_buff *skb) | |
1107 | { | |
1108 | } | |
1109 | ||
1110 | static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, | |
1111 | const struct sk_buff *skb) | |
1112 | { | |
1113 | return true; | |
1114 | } | |
3922285d AS |
1115 | |
1116 | static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, | |
1117 | unsigned long flags, | |
1118 | unsigned long mask) | |
1119 | { | |
1120 | return 0; | |
1121 | } | |
6b26b51b AS |
1122 | |
1123 | static inline void | |
1124 | br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) | |
1125 | { | |
1126 | } | |
f1c2eddf IS |
1127 | |
1128 | static inline void br_switchdev_frame_unmark(struct sk_buff *skb) | |
1129 | { | |
1130 | } | |
6bc506b4 IS |
1131 | #endif /* CONFIG_NET_SWITCHDEV */ |
1132 | ||
1da177e4 | 1133 | #endif |