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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 | ||
1c1cb6d0 | 57 | struct bridge_id { |
1da177e4 | 58 | unsigned char prio[2]; |
e5a727f6 | 59 | unsigned char addr[ETH_ALEN]; |
1da177e4 LT |
60 | }; |
61 | ||
1c1cb6d0 | 62 | struct mac_addr { |
e5a727f6 | 63 | unsigned char addr[ETH_ALEN]; |
1da177e4 LT |
64 | }; |
65 | ||
cc0fdd80 LL |
66 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
67 | /* our own querier */ | |
90010b36 | 68 | struct bridge_mcast_own_query { |
cc0fdd80 LL |
69 | struct timer_list timer; |
70 | u32 startup_sent; | |
71 | }; | |
72 | ||
73 | /* other querier */ | |
90010b36 | 74 | struct bridge_mcast_other_query { |
cc0fdd80 LL |
75 | struct timer_list timer; |
76 | unsigned long delay_time; | |
77 | }; | |
dc4eb53a LL |
78 | |
79 | /* selected querier */ | |
80 | struct bridge_mcast_querier { | |
81 | struct br_ip addr; | |
2cd41431 | 82 | struct net_bridge_port __rcu *port; |
dc4eb53a | 83 | }; |
1080ab95 NA |
84 | |
85 | /* IGMP/MLD statistics */ | |
86 | struct bridge_mcast_stats { | |
87 | struct br_mcast_stats mstats; | |
88 | struct u64_stats_sync syncp; | |
89 | }; | |
cc0fdd80 LL |
90 | #endif |
91 | ||
6dada9b1 NA |
92 | struct br_vlan_stats { |
93 | u64 rx_bytes; | |
94 | u64 rx_packets; | |
95 | u64 tx_bytes; | |
96 | u64 tx_packets; | |
97 | struct u64_stats_sync syncp; | |
98 | }; | |
99 | ||
efa5356b RP |
100 | struct br_tunnel_info { |
101 | __be64 tunnel_id; | |
102 | struct metadata_dst *tunnel_dst; | |
103 | }; | |
104 | ||
2594e906 NA |
105 | /** |
106 | * struct net_bridge_vlan - per-vlan entry | |
107 | * | |
108 | * @vnode: rhashtable member | |
109 | * @vid: VLAN id | |
110 | * @flags: bridge vlan flags | |
6dada9b1 | 111 | * @stats: per-cpu VLAN statistics |
2594e906 NA |
112 | * @br: if MASTER flag set, this points to a bridge struct |
113 | * @port: if MASTER flag unset, this points to a port struct | |
114 | * @refcnt: if MASTER flag set, this is bumped for each port referencing it | |
115 | * @brvlan: if MASTER flag unset, this points to the global per-VLAN context | |
116 | * for this VLAN entry | |
117 | * @vlist: sorted list of VLAN entries | |
118 | * @rcu: used for entry destruction | |
119 | * | |
120 | * This structure is shared between the global per-VLAN entries contained in | |
121 | * the bridge rhashtable and the local per-port per-VLAN entries contained in | |
122 | * the port's rhashtable. The union entries should be interpreted depending on | |
123 | * the entry flags that are set. | |
124 | */ | |
125 | struct net_bridge_vlan { | |
126 | struct rhash_head vnode; | |
efa5356b | 127 | struct rhash_head tnode; |
2594e906 NA |
128 | u16 vid; |
129 | u16 flags; | |
6dada9b1 | 130 | struct br_vlan_stats __percpu *stats; |
243a2e63 | 131 | union { |
2594e906 NA |
132 | struct net_bridge *br; |
133 | struct net_bridge_port *port; | |
134 | }; | |
135 | union { | |
25127759 | 136 | refcount_t refcnt; |
2594e906 NA |
137 | struct net_bridge_vlan *brvlan; |
138 | }; | |
efa5356b RP |
139 | |
140 | struct br_tunnel_info tinfo; | |
141 | ||
2594e906 NA |
142 | struct list_head vlist; |
143 | ||
243a2e63 | 144 | struct rcu_head rcu; |
2594e906 NA |
145 | }; |
146 | ||
147 | /** | |
148 | * struct net_bridge_vlan_group | |
149 | * | |
150 | * @vlan_hash: VLAN entry rhashtable | |
151 | * @vlan_list: sorted VLAN entry list | |
152 | * @num_vlans: number of total VLAN entries | |
77751ee8 | 153 | * @pvid: PVID VLAN id |
2594e906 NA |
154 | * |
155 | * IMPORTANT: Be careful when checking if there're VLAN entries using list | |
156 | * primitives because the bridge can have entries in its list which | |
157 | * are just for global context but not for filtering, i.e. they have | |
158 | * the master flag set but not the brentry flag. If you have to check | |
159 | * if there're "real" entries in the bridge please test @num_vlans | |
160 | */ | |
161 | struct net_bridge_vlan_group { | |
162 | struct rhashtable vlan_hash; | |
efa5356b | 163 | struct rhashtable tunnel_hash; |
2594e906 | 164 | struct list_head vlan_list; |
6cbdceeb | 165 | u16 num_vlans; |
77751ee8 | 166 | u16 pvid; |
243a2e63 VY |
167 | }; |
168 | ||
eb793583 NA |
169 | struct net_bridge_fdb_key { |
170 | mac_addr addr; | |
171 | u16 vlan_id; | |
172 | }; | |
173 | ||
1214628c | 174 | struct net_bridge_fdb_entry { |
eb793583 | 175 | struct rhash_head rhnode; |
1da177e4 LT |
176 | struct net_bridge_port *dst; |
177 | ||
eb793583 NA |
178 | struct net_bridge_fdb_key key; |
179 | struct hlist_node fdb_node; | |
93859b13 JP |
180 | unsigned char is_local:1, |
181 | is_static:1, | |
435f2e7c | 182 | is_sticky:1, |
cf6b8e1e | 183 | added_by_user:1, |
9fe8bcec AS |
184 | added_by_external_learn:1, |
185 | offloaded:1; | |
1214628c NA |
186 | |
187 | /* write-heavy members should not affect lookups */ | |
188 | unsigned long updated ____cacheline_aligned_in_smp; | |
189 | unsigned long used; | |
190 | ||
b22fbf22 | 191 | struct rcu_head rcu; |
1da177e4 LT |
192 | }; |
193 | ||
9d06b6d8 ER |
194 | #define MDB_PG_FLAGS_PERMANENT BIT(0) |
195 | #define MDB_PG_FLAGS_OFFLOAD BIT(1) | |
196 | ||
eb1d1641 HX |
197 | struct net_bridge_port_group { |
198 | struct net_bridge_port *port; | |
e8051688 | 199 | struct net_bridge_port_group __rcu *next; |
eb1d1641 HX |
200 | struct hlist_node mglist; |
201 | struct rcu_head rcu; | |
202 | struct timer_list timer; | |
8ef2a9a5 | 203 | struct br_ip addr; |
9d06b6d8 | 204 | unsigned char flags; |
6db6f0ea | 205 | unsigned char eth_addr[ETH_ALEN]; |
eb1d1641 HX |
206 | }; |
207 | ||
1c1cb6d0 | 208 | struct net_bridge_mdb_entry { |
eb1d1641 | 209 | struct hlist_node hlist[2]; |
eb1d1641 | 210 | struct net_bridge *br; |
e8051688 | 211 | struct net_bridge_port_group __rcu *ports; |
eb1d1641 HX |
212 | struct rcu_head rcu; |
213 | struct timer_list timer; | |
8ef2a9a5 | 214 | struct br_ip addr; |
ff0fd34e | 215 | bool host_joined; |
eb1d1641 HX |
216 | }; |
217 | ||
1c1cb6d0 | 218 | struct net_bridge_mdb_htable { |
eb1d1641 HX |
219 | struct hlist_head *mhash; |
220 | struct rcu_head rcu; | |
221 | struct net_bridge_mdb_htable *old; | |
222 | u32 size; | |
223 | u32 max; | |
224 | u32 secret; | |
225 | u32 ver; | |
226 | }; | |
227 | ||
1f90c7f3 | 228 | struct net_bridge_port { |
1da177e4 LT |
229 | struct net_bridge *br; |
230 | struct net_device *dev; | |
231 | struct list_head list; | |
232 | ||
1f90c7f3 NA |
233 | unsigned long flags; |
234 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
235 | struct net_bridge_vlan_group __rcu *vlgrp; | |
236 | #endif | |
2756f68c | 237 | struct net_bridge_port __rcu *backup_port; |
1f90c7f3 | 238 | |
1da177e4 LT |
239 | /* STP */ |
240 | u8 priority; | |
241 | u8 state; | |
242 | u16 port_no; | |
243 | unsigned char topology_change_ack; | |
244 | unsigned char config_pending; | |
245 | port_id port_id; | |
246 | port_id designated_port; | |
247 | bridge_id designated_root; | |
248 | bridge_id designated_bridge; | |
249 | u32 path_cost; | |
250 | u32 designated_cost; | |
0c03150e | 251 | unsigned long designated_age; |
1da177e4 LT |
252 | |
253 | struct timer_list forward_delay_timer; | |
254 | struct timer_list hold_timer; | |
255 | struct timer_list message_age_timer; | |
256 | struct kobject kobj; | |
257 | struct rcu_head rcu; | |
3982d3d2 | 258 | |
eb1d1641 | 259 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
90010b36 | 260 | struct bridge_mcast_own_query ip4_own_query; |
cc0fdd80 | 261 | #if IS_ENABLED(CONFIG_IPV6) |
90010b36 | 262 | struct bridge_mcast_own_query ip6_own_query; |
cc0fdd80 | 263 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
eb1d1641 | 264 | unsigned char multicast_router; |
1080ab95 | 265 | struct bridge_mcast_stats __percpu *mcast_stats; |
eb1d1641 | 266 | struct timer_list multicast_router_timer; |
eb1d1641 HX |
267 | struct hlist_head mglist; |
268 | struct hlist_node rlist; | |
269 | #endif | |
e0f43752 SA |
270 | |
271 | #ifdef CONFIG_SYSFS | |
272 | char sysfs_name[IFNAMSIZ]; | |
273 | #endif | |
91d2c34a HX |
274 | |
275 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
276 | struct netpoll *np; | |
277 | #endif | |
6bc506b4 IS |
278 | #ifdef CONFIG_NET_SWITCHDEV |
279 | int offload_fwd_mark; | |
280 | #endif | |
5af48b59 | 281 | u16 group_fwd_mask; |
2756f68c | 282 | u16 backup_redirected_cnt; |
1da177e4 LT |
283 | }; |
284 | ||
705e0dea TH |
285 | #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) |
286 | ||
e028e4b8 | 287 | #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) |
f3a6ddf1 | 288 | #define br_promisc_port(p) ((p)->flags & BR_PROMISC) |
e028e4b8 | 289 | |
f350a0a8 JP |
290 | #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) |
291 | ||
b5ed54e9 | 292 | static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) |
293 | { | |
716ec052 | 294 | return rcu_dereference(dev->rx_handler_data); |
b5ed54e9 | 295 | } |
296 | ||
1fb1754a | 297 | static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) |
b5ed54e9 | 298 | { |
ec1e5610 ED |
299 | return br_port_exists(dev) ? |
300 | rtnl_dereference(dev->rx_handler_data) : NULL; | |
b5ed54e9 | 301 | } |
302 | ||
0baa10ff AS |
303 | static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) |
304 | { | |
305 | return br_port_exists(dev) ? | |
306 | rcu_dereference_rtnl(dev->rx_handler_data) : NULL; | |
307 | } | |
308 | ||
ae75767e NA |
309 | enum net_bridge_opts { |
310 | BROPT_VLAN_ENABLED, | |
311 | BROPT_VLAN_STATS_ENABLED, | |
8df3510f NA |
312 | BROPT_NF_CALL_IPTABLES, |
313 | BROPT_NF_CALL_IP6TABLES, | |
314 | BROPT_NF_CALL_ARPTABLES, | |
be3664a0 | 315 | BROPT_GROUP_ADDR_SET, |
13cefad2 | 316 | BROPT_MULTICAST_ENABLED, |
ae75767e NA |
317 | }; |
318 | ||
1f90c7f3 | 319 | struct net_bridge { |
1da177e4 | 320 | spinlock_t lock; |
1f90c7f3 | 321 | spinlock_t hash_lock; |
1da177e4 LT |
322 | struct list_head port_list; |
323 | struct net_device *dev; | |
8f84985f | 324 | struct pcpu_sw_netstats __percpu *stats; |
ae75767e | 325 | unsigned long options; |
1f90c7f3 NA |
326 | /* These fields are accessed on each packet */ |
327 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
1f90c7f3 NA |
328 | __be16 vlan_proto; |
329 | u16 default_pvid; | |
330 | struct net_bridge_vlan_group __rcu *vlgrp; | |
331 | #endif | |
332 | ||
eb793583 | 333 | struct rhashtable fdb_hash_tbl; |
34666d46 | 334 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
efb6de9b BT |
335 | union { |
336 | struct rtable fake_rtable; | |
337 | struct rt6_info fake_rt6_info; | |
338 | }; | |
4adf0af6 | 339 | #endif |
515853cc | 340 | u16 group_fwd_mask; |
f2808d22 | 341 | u16 group_fwd_mask_required; |
515853cc | 342 | |
1da177e4 LT |
343 | /* STP */ |
344 | bridge_id designated_root; | |
345 | bridge_id bridge_id; | |
346 | u32 root_path_cost; | |
1f90c7f3 NA |
347 | unsigned char topology_change; |
348 | unsigned char topology_change_detected; | |
349 | u16 root_port; | |
1da177e4 LT |
350 | unsigned long max_age; |
351 | unsigned long hello_time; | |
352 | unsigned long forward_delay; | |
1da177e4 | 353 | unsigned long ageing_time; |
34d8acd8 | 354 | unsigned long bridge_max_age; |
1da177e4 LT |
355 | unsigned long bridge_hello_time; |
356 | unsigned long bridge_forward_delay; | |
34d8acd8 | 357 | unsigned long bridge_ageing_time; |
1da177e4 | 358 | |
fda93d92 | 359 | u8 group_addr[ETH_ALEN]; |
9cde0708 SH |
360 | |
361 | enum { | |
362 | BR_NO_STP, /* no spanning tree */ | |
363 | BR_KERNEL_STP, /* old STP in kernel */ | |
364 | BR_USER_STP, /* new RSTP in userspace */ | |
365 | } stp_enabled; | |
366 | ||
eb1d1641 HX |
367 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
368 | unsigned char multicast_router; | |
369 | ||
c5c23260 | 370 | u8 multicast_querier:1; |
1c8ad5bf | 371 | u8 multicast_query_use_ifaddr:1; |
0888d5f3 | 372 | u8 has_ipv6_addr:1; |
1080ab95 | 373 | u8 multicast_stats_enabled:1; |
eb1d1641 HX |
374 | |
375 | u32 hash_elasticity; | |
376 | u32 hash_max; | |
377 | ||
378 | u32 multicast_last_member_count; | |
eb1d1641 HX |
379 | u32 multicast_startup_query_count; |
380 | ||
5e923585 NA |
381 | u8 multicast_igmp_version; |
382 | ||
eb1d1641 HX |
383 | unsigned long multicast_last_member_interval; |
384 | unsigned long multicast_membership_interval; | |
385 | unsigned long multicast_querier_interval; | |
386 | unsigned long multicast_query_interval; | |
387 | unsigned long multicast_query_response_interval; | |
388 | unsigned long multicast_startup_query_interval; | |
389 | ||
390 | spinlock_t multicast_lock; | |
e8051688 | 391 | struct net_bridge_mdb_htable __rcu *mdb; |
eb1d1641 | 392 | struct hlist_head router_list; |
eb1d1641 HX |
393 | |
394 | struct timer_list multicast_router_timer; | |
90010b36 LL |
395 | struct bridge_mcast_other_query ip4_other_query; |
396 | struct bridge_mcast_own_query ip4_own_query; | |
dc4eb53a | 397 | struct bridge_mcast_querier ip4_querier; |
1080ab95 | 398 | struct bridge_mcast_stats __percpu *mcast_stats; |
cc0fdd80 | 399 | #if IS_ENABLED(CONFIG_IPV6) |
90010b36 LL |
400 | struct bridge_mcast_other_query ip6_other_query; |
401 | struct bridge_mcast_own_query ip6_own_query; | |
dc4eb53a | 402 | struct bridge_mcast_querier ip6_querier; |
aa2ae3e7 | 403 | u8 multicast_mld_version; |
cc0fdd80 | 404 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
eb1d1641 HX |
405 | #endif |
406 | ||
1da177e4 LT |
407 | struct timer_list hello_timer; |
408 | struct timer_list tcn_timer; | |
409 | struct timer_list topology_change_timer; | |
f7cdee8a | 410 | struct delayed_work gc_work; |
43b98c4a | 411 | struct kobject *ifobj; |
e028e4b8 | 412 | u32 auto_cnt; |
6bc506b4 IS |
413 | |
414 | #ifdef CONFIG_NET_SWITCHDEV | |
415 | int offload_fwd_mark; | |
416 | #endif | |
821f1b21 | 417 | bool neigh_suppress_enabled; |
804b854d | 418 | bool mtu_set_by_user; |
eb793583 | 419 | struct hlist_head fdb_list; |
1da177e4 LT |
420 | }; |
421 | ||
68b7c895 HX |
422 | struct br_input_skb_cb { |
423 | struct net_device *brdev; | |
93fdd47e | 424 | |
32dec5dd | 425 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
eb1d1641 HX |
426 | int igmp; |
427 | int mrouters_only; | |
32dec5dd | 428 | #endif |
93fdd47e | 429 | |
842a9ae0 | 430 | bool proxyarp_replied; |
7d850abd | 431 | bool src_port_isolated; |
93fdd47e | 432 | |
20adfa1a VY |
433 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
434 | bool vlan_filtered; | |
435 | #endif | |
6bc506b4 IS |
436 | |
437 | #ifdef CONFIG_NET_SWITCHDEV | |
438 | int offload_fwd_mark; | |
439 | #endif | |
68b7c895 HX |
440 | }; |
441 | ||
442 | #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) | |
443 | ||
32dec5dd YH |
444 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
445 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) | |
446 | #else | |
447 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) | |
448 | #endif | |
449 | ||
28a16c97 | 450 | #define br_printk(level, br, format, args...) \ |
451 | printk(level "%s: " format, (br)->dev->name, ##args) | |
452 | ||
453 | #define br_err(__br, format, args...) \ | |
454 | br_printk(KERN_ERR, __br, format, ##args) | |
455 | #define br_warn(__br, format, args...) \ | |
456 | br_printk(KERN_WARNING, __br, format, ##args) | |
457 | #define br_notice(__br, format, args...) \ | |
458 | br_printk(KERN_NOTICE, __br, format, ##args) | |
459 | #define br_info(__br, format, args...) \ | |
460 | br_printk(KERN_INFO, __br, format, ##args) | |
461 | ||
462 | #define br_debug(br, format, args...) \ | |
463 | pr_debug("%s: " format, (br)->dev->name, ##args) | |
464 | ||
1da177e4 LT |
465 | /* called under bridge lock */ |
466 | static inline int br_is_root_bridge(const struct net_bridge *br) | |
467 | { | |
468 | return !memcmp(&br->bridge_id, &br->designated_root, 8); | |
469 | } | |
470 | ||
2594e906 NA |
471 | /* check if a VLAN entry is global */ |
472 | static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) | |
473 | { | |
474 | return v->flags & BRIDGE_VLAN_INFO_MASTER; | |
475 | } | |
476 | ||
477 | /* check if a VLAN entry is used by the bridge */ | |
478 | static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) | |
479 | { | |
480 | return v->flags & BRIDGE_VLAN_INFO_BRENTRY; | |
481 | } | |
482 | ||
6be144f6 | 483 | /* check if we should use the vlan entry, returns false if it's only context */ |
2594e906 NA |
484 | static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) |
485 | { | |
486 | if (br_vlan_is_master(v)) { | |
487 | if (br_vlan_is_brentry(v)) | |
488 | return true; | |
489 | else | |
490 | return false; | |
491 | } | |
492 | ||
493 | return true; | |
494 | } | |
495 | ||
ae75767e NA |
496 | static inline int br_opt_get(const struct net_bridge *br, |
497 | enum net_bridge_opts opt) | |
498 | { | |
499 | return test_bit(opt, &br->options); | |
500 | } | |
501 | ||
502 | void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); | |
503 | ||
1da177e4 | 504 | /* br_device.c */ |
348662a1 JP |
505 | void br_dev_setup(struct net_device *dev); |
506 | void br_dev_delete(struct net_device *dev, struct list_head *list); | |
507 | netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); | |
cfb478da | 508 | #ifdef CONFIG_NET_POLL_CONTROLLER |
91d2c34a HX |
509 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
510 | struct sk_buff *skb) | |
511 | { | |
512 | struct netpoll *np = p->np; | |
513 | ||
514 | if (np) | |
515 | netpoll_send_skb(np, skb); | |
516 | } | |
517 | ||
a8779ec1 | 518 | int br_netpoll_enable(struct net_bridge_port *p); |
348662a1 | 519 | void br_netpoll_disable(struct net_bridge_port *p); |
cfb478da | 520 | #else |
9f70b0fc | 521 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
91d2c34a HX |
522 | struct sk_buff *skb) |
523 | { | |
524 | } | |
cfb478da | 525 | |
a8779ec1 | 526 | static inline int br_netpoll_enable(struct net_bridge_port *p) |
91d2c34a HX |
527 | { |
528 | return 0; | |
529 | } | |
530 | ||
531 | static inline void br_netpoll_disable(struct net_bridge_port *p) | |
532 | { | |
533 | } | |
cfb478da | 534 | #endif |
1da177e4 LT |
535 | |
536 | /* br_fdb.c */ | |
348662a1 JP |
537 | int br_fdb_init(void); |
538 | void br_fdb_fini(void); | |
eb793583 NA |
539 | int br_fdb_hash_init(struct net_bridge *br); |
540 | void br_fdb_hash_fini(struct net_bridge *br); | |
348662a1 | 541 | void br_fdb_flush(struct net_bridge *br); |
424bb9c9 TM |
542 | void br_fdb_find_delete_local(struct net_bridge *br, |
543 | const struct net_bridge_port *p, | |
544 | const unsigned char *addr, u16 vid); | |
348662a1 JP |
545 | void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); |
546 | void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); | |
f7cdee8a | 547 | void br_fdb_cleanup(struct work_struct *work); |
348662a1 | 548 | void br_fdb_delete_by_port(struct net_bridge *br, |
1ea2d020 | 549 | const struct net_bridge_port *p, u16 vid, int do_all); |
bfd0aeac NA |
550 | struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, |
551 | const unsigned char *addr, | |
552 | __u16 vid); | |
348662a1 JP |
553 | int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); |
554 | int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, | |
555 | unsigned long off); | |
556 | int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, | |
557 | const unsigned char *addr, u16 vid); | |
558 | void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, | |
a5642ab4 | 559 | const unsigned char *addr, u16 vid, bool added_by_user); |
348662a1 JP |
560 | |
561 | int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], | |
f6f6424b | 562 | struct net_device *dev, const unsigned char *addr, u16 vid); |
348662a1 | 563 | int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, |
f6f6424b | 564 | const unsigned char *addr, u16 vid, u16 nlh_flags); |
348662a1 | 565 | int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, |
d297653d | 566 | struct net_device *dev, struct net_device *fdev, int *idx); |
8db24af7 VY |
567 | int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); |
568 | void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); | |
3aeb6617 | 569 | int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, |
161d82de PM |
570 | const unsigned char *addr, u16 vid, |
571 | bool swdev_notify); | |
3aeb6617 | 572 | int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, |
161d82de PM |
573 | const unsigned char *addr, u16 vid, |
574 | bool swdev_notify); | |
9fe8bcec AS |
575 | void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, |
576 | const unsigned char *addr, u16 vid); | |
1da177e4 LT |
577 | |
578 | /* br_forward.c */ | |
8addd5e7 NA |
579 | enum br_pkt_type { |
580 | BR_PKT_UNICAST, | |
581 | BR_PKT_MULTICAST, | |
582 | BR_PKT_BROADCAST | |
583 | }; | |
0c4b51f0 | 584 | int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); |
b35c5f63 | 585 | void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, |
37b090e6 | 586 | bool local_rcv, bool local_orig); |
0c4b51f0 | 587 | int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); |
37b090e6 | 588 | void br_flood(struct net_bridge *br, struct sk_buff *skb, |
8addd5e7 | 589 | enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); |
1da177e4 | 590 | |
7d850abd NA |
591 | /* return true if both source port and dest port are isolated */ |
592 | static inline bool br_skb_isolated(const struct net_bridge_port *to, | |
593 | const struct sk_buff *skb) | |
594 | { | |
595 | return BR_INPUT_SKB_CB(skb)->src_port_isolated && | |
596 | (to->flags & BR_ISOLATED); | |
597 | } | |
598 | ||
1da177e4 | 599 | /* br_if.c */ |
faa1cd82 | 600 | void br_port_carrier_check(struct net_bridge_port *p, bool *notified); |
348662a1 JP |
601 | int br_add_bridge(struct net *net, const char *name); |
602 | int br_del_bridge(struct net *net, const char *name); | |
ca752be0 DA |
603 | int br_add_if(struct net_bridge *br, struct net_device *dev, |
604 | struct netlink_ext_ack *extack); | |
348662a1 | 605 | int br_del_if(struct net_bridge *br, struct net_device *dev); |
804b854d | 606 | void br_mtu_auto_adjust(struct net_bridge *br); |
348662a1 JP |
607 | netdev_features_t br_features_recompute(struct net_bridge *br, |
608 | netdev_features_t features); | |
e028e4b8 | 609 | void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); |
2796d0c6 | 610 | void br_manage_promisc(struct net_bridge *br); |
2756f68c | 611 | int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); |
1da177e4 LT |
612 | |
613 | /* br_input.c */ | |
0c4b51f0 | 614 | int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); |
348662a1 | 615 | rx_handler_result_t br_handle_frame(struct sk_buff **pskb); |
1da177e4 | 616 | |
859828c0 JP |
617 | static inline bool br_rx_handler_check_rcu(const struct net_device *dev) |
618 | { | |
619 | return rcu_dereference(dev->rx_handler) == br_handle_frame; | |
620 | } | |
621 | ||
4d4fd361 PM |
622 | static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) |
623 | { | |
624 | return rcu_dereference_rtnl(dev->rx_handler) == br_handle_frame; | |
625 | } | |
626 | ||
859828c0 JP |
627 | static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) |
628 | { | |
629 | return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; | |
630 | } | |
631 | ||
4d4fd361 PM |
632 | static inline struct net_bridge_port * |
633 | br_port_get_check_rtnl(const struct net_device *dev) | |
634 | { | |
635 | return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; | |
636 | } | |
637 | ||
1da177e4 | 638 | /* br_ioctl.c */ |
348662a1 JP |
639 | int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); |
640 | int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, | |
641 | void __user *arg); | |
1da177e4 | 642 | |
eb1d1641 HX |
643 | /* br_multicast.c */ |
644 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING | |
2ce297fc | 645 | extern unsigned int br_mdb_rehash_seq; |
348662a1 | 646 | int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, |
394efd19 | 647 | struct sk_buff *skb, u16 vid); |
348662a1 JP |
648 | struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, |
649 | struct sk_buff *skb, u16 vid); | |
1080ab95 | 650 | int br_multicast_add_port(struct net_bridge_port *port); |
348662a1 JP |
651 | void br_multicast_del_port(struct net_bridge_port *port); |
652 | void br_multicast_enable_port(struct net_bridge_port *port); | |
653 | void br_multicast_disable_port(struct net_bridge_port *port); | |
654 | void br_multicast_init(struct net_bridge *br); | |
655 | void br_multicast_open(struct net_bridge *br); | |
656 | void br_multicast_stop(struct net_bridge *br); | |
e10177ab | 657 | void br_multicast_dev_del(struct net_bridge *br); |
37b090e6 NA |
658 | void br_multicast_flood(struct net_bridge_mdb_entry *mdst, |
659 | struct sk_buff *skb, bool local_rcv, bool local_orig); | |
348662a1 JP |
660 | int br_multicast_set_router(struct net_bridge *br, unsigned long val); |
661 | int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); | |
662 | int br_multicast_toggle(struct net_bridge *br, unsigned long val); | |
663 | int br_multicast_set_querier(struct net_bridge *br, unsigned long val); | |
664 | int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); | |
5e923585 | 665 | int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); |
aa2ae3e7 NA |
666 | #if IS_ENABLED(CONFIG_IPV6) |
667 | int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); | |
668 | #endif | |
348662a1 JP |
669 | struct net_bridge_mdb_entry * |
670 | br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); | |
671 | struct net_bridge_mdb_entry * | |
672 | br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, | |
673 | struct br_ip *group); | |
674 | void br_multicast_free_pg(struct rcu_head *head); | |
675 | struct net_bridge_port_group * | |
676 | br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, | |
677 | struct net_bridge_port_group __rcu *next, | |
6db6f0ea | 678 | unsigned char flags, const unsigned char *src); |
348662a1 JP |
679 | void br_mdb_init(void); |
680 | void br_mdb_uninit(void); | |
45ebcce5 ER |
681 | void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, |
682 | struct br_ip *group, int type, u8 flags); | |
949f1e39 SA |
683 | void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, |
684 | int type); | |
1080ab95 | 685 | void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, |
a65056ec | 686 | const struct sk_buff *skb, u8 type, u8 dir); |
1080ab95 | 687 | int br_multicast_init_stats(struct net_bridge *br); |
b6fe0440 | 688 | void br_multicast_uninit_stats(struct net_bridge *br); |
1080ab95 NA |
689 | void br_multicast_get_stats(const struct net_bridge *br, |
690 | const struct net_bridge_port *p, | |
691 | struct br_mcast_stats *dest); | |
85b35269 | 692 | |
cfd56754 CW |
693 | #define mlock_dereference(X, br) \ |
694 | rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) | |
695 | ||
85b35269 SS |
696 | static inline bool br_multicast_is_router(struct net_bridge *br) |
697 | { | |
698 | return br->multicast_router == 2 || | |
699 | (br->multicast_router == 1 && | |
700 | timer_pending(&br->multicast_router_timer)); | |
701 | } | |
b00589af | 702 | |
cc0fdd80 LL |
703 | static inline bool |
704 | __br_multicast_querier_exists(struct net_bridge *br, | |
0888d5f3 | 705 | struct bridge_mcast_other_query *querier, |
706 | const bool is_ipv6) | |
b00589af | 707 | { |
0888d5f3 | 708 | bool own_querier_enabled; |
709 | ||
710 | if (br->multicast_querier) { | |
711 | if (is_ipv6 && !br->has_ipv6_addr) | |
712 | own_querier_enabled = false; | |
713 | else | |
714 | own_querier_enabled = true; | |
715 | } else { | |
716 | own_querier_enabled = false; | |
717 | } | |
718 | ||
cc0fdd80 | 719 | return time_is_before_jiffies(querier->delay_time) && |
0888d5f3 | 720 | (own_querier_enabled || timer_pending(&querier->timer)); |
cc0fdd80 LL |
721 | } |
722 | ||
723 | static inline bool br_multicast_querier_exists(struct net_bridge *br, | |
724 | struct ethhdr *eth) | |
725 | { | |
726 | switch (eth->h_proto) { | |
727 | case (htons(ETH_P_IP)): | |
0888d5f3 | 728 | return __br_multicast_querier_exists(br, |
729 | &br->ip4_other_query, false); | |
cc0fdd80 LL |
730 | #if IS_ENABLED(CONFIG_IPV6) |
731 | case (htons(ETH_P_IPV6)): | |
0888d5f3 | 732 | return __br_multicast_querier_exists(br, |
733 | &br->ip6_other_query, true); | |
cc0fdd80 LL |
734 | #endif |
735 | default: | |
736 | return false; | |
737 | } | |
b00589af | 738 | } |
1080ab95 NA |
739 | |
740 | static inline int br_multicast_igmp_type(const struct sk_buff *skb) | |
741 | { | |
742 | return BR_INPUT_SKB_CB(skb)->igmp; | |
743 | } | |
eb1d1641 HX |
744 | #else |
745 | static inline int br_multicast_rcv(struct net_bridge *br, | |
746 | struct net_bridge_port *port, | |
06499098 VY |
747 | struct sk_buff *skb, |
748 | u16 vid) | |
eb1d1641 HX |
749 | { |
750 | return 0; | |
751 | } | |
752 | ||
753 | static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, | |
fbca58a2 | 754 | struct sk_buff *skb, u16 vid) |
eb1d1641 HX |
755 | { |
756 | return NULL; | |
757 | } | |
758 | ||
1080ab95 | 759 | static inline int br_multicast_add_port(struct net_bridge_port *port) |
eb1d1641 | 760 | { |
1080ab95 | 761 | return 0; |
eb1d1641 HX |
762 | } |
763 | ||
764 | static inline void br_multicast_del_port(struct net_bridge_port *port) | |
765 | { | |
766 | } | |
767 | ||
768 | static inline void br_multicast_enable_port(struct net_bridge_port *port) | |
769 | { | |
770 | } | |
771 | ||
772 | static inline void br_multicast_disable_port(struct net_bridge_port *port) | |
773 | { | |
774 | } | |
775 | ||
776 | static inline void br_multicast_init(struct net_bridge *br) | |
777 | { | |
778 | } | |
779 | ||
780 | static inline void br_multicast_open(struct net_bridge *br) | |
781 | { | |
782 | } | |
783 | ||
784 | static inline void br_multicast_stop(struct net_bridge *br) | |
785 | { | |
786 | } | |
5cb5e947 | 787 | |
a7ce45a7 NA |
788 | static inline void br_multicast_dev_del(struct net_bridge *br) |
789 | { | |
790 | } | |
791 | ||
37b090e6 NA |
792 | static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, |
793 | struct sk_buff *skb, | |
794 | bool local_rcv, bool local_orig) | |
5cb5e947 HX |
795 | { |
796 | } | |
797 | ||
eb1d1641 HX |
798 | static inline bool br_multicast_is_router(struct net_bridge *br) |
799 | { | |
03aaa9e2 | 800 | return false; |
eb1d1641 | 801 | } |
37b090e6 | 802 | |
cc0fdd80 LL |
803 | static inline bool br_multicast_querier_exists(struct net_bridge *br, |
804 | struct ethhdr *eth) | |
b00589af LL |
805 | { |
806 | return false; | |
807 | } | |
37b090e6 | 808 | |
fdb184d1 RR |
809 | static inline void br_mdb_init(void) |
810 | { | |
811 | } | |
37b090e6 | 812 | |
fdb184d1 RR |
813 | static inline void br_mdb_uninit(void) |
814 | { | |
815 | } | |
1080ab95 NA |
816 | |
817 | static inline void br_multicast_count(struct net_bridge *br, | |
818 | const struct net_bridge_port *p, | |
a65056ec NA |
819 | const struct sk_buff *skb, |
820 | u8 type, u8 dir) | |
1080ab95 NA |
821 | { |
822 | } | |
823 | ||
824 | static inline int br_multicast_init_stats(struct net_bridge *br) | |
825 | { | |
826 | return 0; | |
827 | } | |
828 | ||
b6fe0440 IS |
829 | static inline void br_multicast_uninit_stats(struct net_bridge *br) |
830 | { | |
831 | } | |
832 | ||
1080ab95 NA |
833 | static inline int br_multicast_igmp_type(const struct sk_buff *skb) |
834 | { | |
835 | return 0; | |
836 | } | |
85b35269 | 837 | #endif |
eb1d1641 | 838 | |
243a2e63 VY |
839 | /* br_vlan.c */ |
840 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
77751ee8 NA |
841 | bool br_allowed_ingress(const struct net_bridge *br, |
842 | struct net_bridge_vlan_group *vg, struct sk_buff *skb, | |
843 | u16 *vid); | |
844 | bool br_allowed_egress(struct net_bridge_vlan_group *vg, | |
348662a1 | 845 | const struct sk_buff *skb); |
e0d7968a | 846 | bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); |
348662a1 | 847 | struct sk_buff *br_handle_vlan(struct net_bridge *br, |
11538d03 | 848 | const struct net_bridge_port *port, |
2594e906 | 849 | struct net_bridge_vlan_group *vg, |
348662a1 | 850 | struct sk_buff *skb); |
f418af63 NA |
851 | int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, |
852 | bool *changed); | |
348662a1 JP |
853 | int br_vlan_delete(struct net_bridge *br, u16 vid); |
854 | void br_vlan_flush(struct net_bridge *br); | |
2594e906 | 855 | struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); |
204177f3 | 856 | void br_recalculate_fwd_mask(struct net_bridge *br); |
a7854037 | 857 | int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
348662a1 | 858 | int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
d2d427b3 | 859 | int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); |
204177f3 | 860 | int br_vlan_set_proto(struct net_bridge *br, unsigned long val); |
6dada9b1 | 861 | int br_vlan_set_stats(struct net_bridge *br, unsigned long val); |
5be5a2df | 862 | int br_vlan_init(struct net_bridge *br); |
96a20d9d | 863 | int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); |
0f963b75 | 864 | int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid); |
f418af63 NA |
865 | int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, |
866 | bool *changed); | |
348662a1 JP |
867 | int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); |
868 | void nbp_vlan_flush(struct net_bridge_port *port); | |
5be5a2df | 869 | int nbp_vlan_init(struct net_bridge_port *port); |
2594e906 | 870 | int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); |
a60c0903 NA |
871 | void br_vlan_get_stats(const struct net_bridge_vlan *v, |
872 | struct br_vlan_stats *stats); | |
a37b85c9 | 873 | |
2594e906 NA |
874 | static inline struct net_bridge_vlan_group *br_vlan_group( |
875 | const struct net_bridge *br) | |
a37b85c9 | 876 | { |
907b1e6e | 877 | return rtnl_dereference(br->vlgrp); |
a37b85c9 VY |
878 | } |
879 | ||
2594e906 NA |
880 | static inline struct net_bridge_vlan_group *nbp_vlan_group( |
881 | const struct net_bridge_port *p) | |
a37b85c9 | 882 | { |
907b1e6e NA |
883 | return rtnl_dereference(p->vlgrp); |
884 | } | |
885 | ||
886 | static inline struct net_bridge_vlan_group *br_vlan_group_rcu( | |
887 | const struct net_bridge *br) | |
888 | { | |
889 | return rcu_dereference(br->vlgrp); | |
890 | } | |
891 | ||
892 | static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( | |
893 | const struct net_bridge_port *p) | |
894 | { | |
895 | return rcu_dereference(p->vlgrp); | |
a37b85c9 VY |
896 | } |
897 | ||
898 | /* Since bridge now depends on 8021Q module, but the time bridge sees the | |
899 | * skb, the vlan tag will always be present if the frame was tagged. | |
900 | */ | |
901 | static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) | |
902 | { | |
903 | int err = 0; | |
904 | ||
2594e906 | 905 | if (skb_vlan_tag_present(skb)) { |
df8a39de | 906 | *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; |
2594e906 | 907 | } else { |
a37b85c9 VY |
908 | *vid = 0; |
909 | err = -EINVAL; | |
910 | } | |
911 | ||
912 | return err; | |
913 | } | |
78851988 | 914 | |
77751ee8 | 915 | static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) |
2594e906 | 916 | { |
77751ee8 | 917 | if (!vg) |
2594e906 NA |
918 | return 0; |
919 | ||
920 | smp_rmb(); | |
77751ee8 | 921 | return vg->pvid; |
78851988 VY |
922 | } |
923 | ||
243a2e63 | 924 | #else |
77751ee8 NA |
925 | static inline bool br_allowed_ingress(const struct net_bridge *br, |
926 | struct net_bridge_vlan_group *vg, | |
78851988 VY |
927 | struct sk_buff *skb, |
928 | u16 *vid) | |
a37b85c9 VY |
929 | { |
930 | return true; | |
931 | } | |
932 | ||
2594e906 | 933 | static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, |
85f46c6b VY |
934 | const struct sk_buff *skb) |
935 | { | |
936 | return true; | |
937 | } | |
938 | ||
e0d7968a TM |
939 | static inline bool br_should_learn(struct net_bridge_port *p, |
940 | struct sk_buff *skb, u16 *vid) | |
941 | { | |
942 | return true; | |
943 | } | |
944 | ||
78851988 | 945 | static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, |
11538d03 | 946 | const struct net_bridge_port *port, |
2594e906 | 947 | struct net_bridge_vlan_group *vg, |
78851988 VY |
948 | struct sk_buff *skb) |
949 | { | |
950 | return skb; | |
951 | } | |
952 | ||
f418af63 NA |
953 | static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, |
954 | bool *changed) | |
243a2e63 | 955 | { |
f418af63 | 956 | *changed = false; |
243a2e63 VY |
957 | return -EOPNOTSUPP; |
958 | } | |
959 | ||
960 | static inline int br_vlan_delete(struct net_bridge *br, u16 vid) | |
961 | { | |
962 | return -EOPNOTSUPP; | |
963 | } | |
964 | ||
965 | static inline void br_vlan_flush(struct net_bridge *br) | |
966 | { | |
967 | } | |
968 | ||
204177f3 TM |
969 | static inline void br_recalculate_fwd_mask(struct net_bridge *br) |
970 | { | |
971 | } | |
972 | ||
5be5a2df | 973 | static inline int br_vlan_init(struct net_bridge *br) |
8580e211 | 974 | { |
5be5a2df | 975 | return 0; |
8580e211 TM |
976 | } |
977 | ||
f418af63 NA |
978 | static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, |
979 | bool *changed) | |
243a2e63 | 980 | { |
f418af63 | 981 | *changed = false; |
243a2e63 VY |
982 | return -EOPNOTSUPP; |
983 | } | |
984 | ||
985 | static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) | |
986 | { | |
987 | return -EOPNOTSUPP; | |
988 | } | |
989 | ||
990 | static inline void nbp_vlan_flush(struct net_bridge_port *port) | |
991 | { | |
992 | } | |
993 | ||
2594e906 NA |
994 | static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, |
995 | u16 vid) | |
a37b85c9 VY |
996 | { |
997 | return NULL; | |
998 | } | |
999 | ||
2594e906 | 1000 | static inline int nbp_vlan_init(struct net_bridge_port *port) |
bc9a25d2 | 1001 | { |
2594e906 | 1002 | return 0; |
bc9a25d2 VY |
1003 | } |
1004 | ||
2594e906 | 1005 | static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) |
5be5a2df VY |
1006 | { |
1007 | return 0; | |
1008 | } | |
1009 | ||
77751ee8 | 1010 | static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) |
78851988 | 1011 | { |
3df6bf45 | 1012 | return 0; |
78851988 | 1013 | } |
2796d0c6 | 1014 | |
a7854037 NA |
1015 | static inline int __br_vlan_filter_toggle(struct net_bridge *br, |
1016 | unsigned long val) | |
1017 | { | |
1018 | return -EOPNOTSUPP; | |
1019 | } | |
2594e906 NA |
1020 | |
1021 | static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, | |
1022 | u32 filter_mask) | |
1023 | { | |
1024 | return 0; | |
1025 | } | |
1026 | ||
1027 | static inline struct net_bridge_vlan_group *br_vlan_group( | |
1028 | const struct net_bridge *br) | |
1029 | { | |
1030 | return NULL; | |
1031 | } | |
1032 | ||
1033 | static inline struct net_bridge_vlan_group *nbp_vlan_group( | |
1034 | const struct net_bridge_port *p) | |
1035 | { | |
1036 | return NULL; | |
1037 | } | |
907b1e6e NA |
1038 | |
1039 | static inline struct net_bridge_vlan_group *br_vlan_group_rcu( | |
1040 | const struct net_bridge *br) | |
1041 | { | |
1042 | return NULL; | |
1043 | } | |
1044 | ||
1045 | static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( | |
1046 | const struct net_bridge_port *p) | |
1047 | { | |
1048 | return NULL; | |
1049 | } | |
a60c0903 NA |
1050 | |
1051 | static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, | |
1052 | struct br_vlan_stats *stats) | |
1053 | { | |
1054 | } | |
243a2e63 VY |
1055 | #endif |
1056 | ||
1a4ba64d PNA |
1057 | struct nf_br_ops { |
1058 | int (*br_dev_xmit_hook)(struct sk_buff *skb); | |
1059 | }; | |
1060 | extern const struct nf_br_ops __rcu *nf_br_ops; | |
1061 | ||
1da177e4 | 1062 | /* br_netfilter.c */ |
34666d46 PNA |
1063 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
1064 | int br_nf_core_init(void); | |
1065 | void br_nf_core_fini(void); | |
348662a1 | 1066 | void br_netfilter_rtable_init(struct net_bridge *); |
c0909713 | 1067 | #else |
34666d46 PNA |
1068 | static inline int br_nf_core_init(void) { return 0; } |
1069 | static inline void br_nf_core_fini(void) {} | |
4adf0af6 | 1070 | #define br_netfilter_rtable_init(x) |
c0909713 | 1071 | #endif |
1da177e4 LT |
1072 | |
1073 | /* br_stp.c */ | |
775dd692 | 1074 | void br_set_state(struct net_bridge_port *p, unsigned int state); |
348662a1 JP |
1075 | struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); |
1076 | void br_init_port(struct net_bridge_port *p); | |
1077 | void br_become_designated_port(struct net_bridge_port *p); | |
1da177e4 | 1078 | |
348662a1 JP |
1079 | void __br_set_forward_delay(struct net_bridge *br, unsigned long t); |
1080 | int br_set_forward_delay(struct net_bridge *br, unsigned long x); | |
1081 | int br_set_hello_time(struct net_bridge *br, unsigned long x); | |
1082 | int br_set_max_age(struct net_bridge *br, unsigned long x); | |
82dd4332 | 1083 | int __set_ageing_time(struct net_device *dev, unsigned long t); |
9e0b27fe | 1084 | int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); |
14f98f25 | 1085 | |
1086 | ||
1da177e4 | 1087 | /* br_stp_if.c */ |
348662a1 JP |
1088 | void br_stp_enable_bridge(struct net_bridge *br); |
1089 | void br_stp_disable_bridge(struct net_bridge *br); | |
1090 | void br_stp_set_enabled(struct net_bridge *br, unsigned long val); | |
1091 | void br_stp_enable_port(struct net_bridge_port *p); | |
1092 | void br_stp_disable_port(struct net_bridge_port *p); | |
1093 | bool br_stp_recalculate_bridge_id(struct net_bridge *br); | |
1094 | void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); | |
1095 | void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); | |
1096 | int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); | |
1097 | int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); | |
1098 | ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); | |
1da177e4 LT |
1099 | |
1100 | /* br_stp_bpdu.c */ | |
7c85fbf0 | 1101 | struct stp_proto; |
348662a1 JP |
1102 | void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, |
1103 | struct net_device *dev); | |
1da177e4 LT |
1104 | |
1105 | /* br_stp_timer.c */ | |
348662a1 JP |
1106 | void br_stp_timer_init(struct net_bridge *br); |
1107 | void br_stp_port_timer_init(struct net_bridge_port *p); | |
1108 | unsigned long br_timer_value(const struct timer_list *timer); | |
1da177e4 LT |
1109 | |
1110 | /* br.c */ | |
e6373c4c | 1111 | #if IS_ENABLED(CONFIG_ATM_LANE) |
da678292 MM |
1112 | extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); |
1113 | #endif | |
1da177e4 | 1114 | |
11dc1f36 | 1115 | /* br_netlink.c */ |
149ddd83 | 1116 | extern struct rtnl_link_ops br_link_ops; |
348662a1 JP |
1117 | int br_netlink_init(void); |
1118 | void br_netlink_fini(void); | |
92899063 NA |
1119 | void br_ifinfo_notify(int event, const struct net_bridge *br, |
1120 | const struct net_bridge_port *port); | |
add511b3 RP |
1121 | int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); |
1122 | int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); | |
348662a1 | 1123 | int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, |
46c264da | 1124 | u32 filter_mask, int nlflags); |
11dc1f36 | 1125 | |
1da177e4 LT |
1126 | #ifdef CONFIG_SYSFS |
1127 | /* br_sysfs_if.c */ | |
52cf25d0 | 1128 | extern const struct sysfs_ops brport_sysfs_ops; |
348662a1 JP |
1129 | int br_sysfs_addif(struct net_bridge_port *p); |
1130 | int br_sysfs_renameif(struct net_bridge_port *p); | |
1da177e4 LT |
1131 | |
1132 | /* br_sysfs_br.c */ | |
348662a1 JP |
1133 | int br_sysfs_addbr(struct net_device *dev); |
1134 | void br_sysfs_delbr(struct net_device *dev); | |
1da177e4 LT |
1135 | |
1136 | #else | |
1137 | ||
0cb2bbbe LJ |
1138 | static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } |
1139 | static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } | |
1140 | static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } | |
1141 | static inline void br_sysfs_delbr(struct net_device *dev) { return; } | |
1da177e4 LT |
1142 | #endif /* CONFIG_SYSFS */ |
1143 | ||
6bc506b4 IS |
1144 | /* br_switchdev.c */ |
1145 | #ifdef CONFIG_NET_SWITCHDEV | |
1146 | int nbp_switchdev_mark_set(struct net_bridge_port *p); | |
1147 | void nbp_switchdev_frame_mark(const struct net_bridge_port *p, | |
1148 | struct sk_buff *skb); | |
1149 | bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, | |
1150 | const struct sk_buff *skb); | |
3922285d AS |
1151 | int br_switchdev_set_port_flag(struct net_bridge_port *p, |
1152 | unsigned long flags, | |
1153 | unsigned long mask); | |
6b26b51b AS |
1154 | void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, |
1155 | int type); | |
d66e4348 PM |
1156 | int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags); |
1157 | int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); | |
f1c2eddf IS |
1158 | |
1159 | static inline void br_switchdev_frame_unmark(struct sk_buff *skb) | |
1160 | { | |
1161 | skb->offload_fwd_mark = 0; | |
1162 | } | |
6bc506b4 IS |
1163 | #else |
1164 | static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) | |
1165 | { | |
1166 | return 0; | |
1167 | } | |
1168 | ||
1169 | static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, | |
1170 | struct sk_buff *skb) | |
1171 | { | |
1172 | } | |
1173 | ||
1174 | static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, | |
1175 | const struct sk_buff *skb) | |
1176 | { | |
1177 | return true; | |
1178 | } | |
3922285d AS |
1179 | |
1180 | static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, | |
1181 | unsigned long flags, | |
1182 | unsigned long mask) | |
1183 | { | |
1184 | return 0; | |
1185 | } | |
6b26b51b | 1186 | |
d66e4348 PM |
1187 | static inline int br_switchdev_port_vlan_add(struct net_device *dev, |
1188 | u16 vid, u16 flags) | |
1189 | { | |
1190 | return -EOPNOTSUPP; | |
1191 | } | |
1192 | ||
1193 | static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) | |
1194 | { | |
1195 | return -EOPNOTSUPP; | |
1196 | } | |
1197 | ||
6b26b51b AS |
1198 | static inline void |
1199 | br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) | |
1200 | { | |
1201 | } | |
f1c2eddf IS |
1202 | |
1203 | static inline void br_switchdev_frame_unmark(struct sk_buff *skb) | |
1204 | { | |
1205 | } | |
6bc506b4 IS |
1206 | #endif /* CONFIG_NET_SWITCHDEV */ |
1207 | ||
057658cb | 1208 | /* br_arp_nd_proxy.c */ |
821f1b21 | 1209 | void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); |
057658cb RP |
1210 | void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, |
1211 | u16 vid, struct net_bridge_port *p); | |
ed842fae RP |
1212 | void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, |
1213 | u16 vid, struct net_bridge_port *p, struct nd_msg *msg); | |
1214 | struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); | |
1da177e4 | 1215 | #endif |