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 | ||
d08c6bc0 NA |
34 | #define BR_MULTICAST_DEFAULT_HASH_MAX 4096 |
35 | ||
9cde0708 SH |
36 | #define BR_VERSION "2.3" |
37 | ||
515853cc | 38 | /* Control of forwarding link local multicast */ |
39 | #define BR_GROUPFWD_DEFAULT 0 | |
784b58a3 | 40 | /* Don't allow forwarding of control protocols like STP, MAC PAUSE and LACP */ |
5af48b59 NA |
41 | enum { |
42 | BR_GROUPFWD_STP = BIT(0), | |
43 | BR_GROUPFWD_MACPAUSE = BIT(1), | |
44 | BR_GROUPFWD_LACP = BIT(2), | |
45 | }; | |
46 | ||
47 | #define BR_GROUPFWD_RESTRICTED (BR_GROUPFWD_STP | BR_GROUPFWD_MACPAUSE | \ | |
48 | BR_GROUPFWD_LACP) | |
f2808d22 TM |
49 | /* The Nearest Customer Bridge Group Address, 01-80-C2-00-00-[00,0B,0C,0D,0F] */ |
50 | #define BR_GROUPFWD_8021AD 0xB801u | |
515853cc | 51 | |
9cde0708 SH |
52 | /* Path to usermode spanning tree program */ |
53 | #define BR_STP_PROG "/sbin/bridge-stp" | |
8cbb512e | 54 | |
1da177e4 LT |
55 | typedef struct bridge_id bridge_id; |
56 | typedef struct mac_addr mac_addr; | |
57 | typedef __u16 port_id; | |
58 | ||
1c1cb6d0 | 59 | struct bridge_id { |
1da177e4 | 60 | unsigned char prio[2]; |
e5a727f6 | 61 | unsigned char addr[ETH_ALEN]; |
1da177e4 LT |
62 | }; |
63 | ||
1c1cb6d0 | 64 | struct mac_addr { |
e5a727f6 | 65 | unsigned char addr[ETH_ALEN]; |
1da177e4 LT |
66 | }; |
67 | ||
cc0fdd80 LL |
68 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
69 | /* our own querier */ | |
90010b36 | 70 | struct bridge_mcast_own_query { |
cc0fdd80 LL |
71 | struct timer_list timer; |
72 | u32 startup_sent; | |
73 | }; | |
74 | ||
75 | /* other querier */ | |
90010b36 | 76 | struct bridge_mcast_other_query { |
cc0fdd80 LL |
77 | struct timer_list timer; |
78 | unsigned long delay_time; | |
79 | }; | |
dc4eb53a LL |
80 | |
81 | /* selected querier */ | |
82 | struct bridge_mcast_querier { | |
83 | struct br_ip addr; | |
2cd41431 | 84 | struct net_bridge_port __rcu *port; |
dc4eb53a | 85 | }; |
1080ab95 NA |
86 | |
87 | /* IGMP/MLD statistics */ | |
88 | struct bridge_mcast_stats { | |
89 | struct br_mcast_stats mstats; | |
90 | struct u64_stats_sync syncp; | |
91 | }; | |
cc0fdd80 LL |
92 | #endif |
93 | ||
6dada9b1 NA |
94 | struct br_vlan_stats { |
95 | u64 rx_bytes; | |
96 | u64 rx_packets; | |
97 | u64 tx_bytes; | |
98 | u64 tx_packets; | |
99 | struct u64_stats_sync syncp; | |
100 | }; | |
101 | ||
efa5356b RP |
102 | struct br_tunnel_info { |
103 | __be64 tunnel_id; | |
104 | struct metadata_dst *tunnel_dst; | |
105 | }; | |
106 | ||
9d332e69 NA |
107 | /* private vlan flags */ |
108 | enum { | |
109 | BR_VLFLAG_PER_PORT_STATS = BIT(0), | |
27973793 | 110 | BR_VLFLAG_ADDED_BY_SWITCHDEV = BIT(1), |
9d332e69 NA |
111 | }; |
112 | ||
2594e906 NA |
113 | /** |
114 | * struct net_bridge_vlan - per-vlan entry | |
115 | * | |
116 | * @vnode: rhashtable member | |
117 | * @vid: VLAN id | |
118 | * @flags: bridge vlan flags | |
9d332e69 | 119 | * @priv_flags: private (in-kernel) bridge vlan flags |
6dada9b1 | 120 | * @stats: per-cpu VLAN statistics |
2594e906 NA |
121 | * @br: if MASTER flag set, this points to a bridge struct |
122 | * @port: if MASTER flag unset, this points to a port struct | |
123 | * @refcnt: if MASTER flag set, this is bumped for each port referencing it | |
124 | * @brvlan: if MASTER flag unset, this points to the global per-VLAN context | |
125 | * for this VLAN entry | |
126 | * @vlist: sorted list of VLAN entries | |
127 | * @rcu: used for entry destruction | |
128 | * | |
129 | * This structure is shared between the global per-VLAN entries contained in | |
130 | * the bridge rhashtable and the local per-port per-VLAN entries contained in | |
131 | * the port's rhashtable. The union entries should be interpreted depending on | |
132 | * the entry flags that are set. | |
133 | */ | |
134 | struct net_bridge_vlan { | |
135 | struct rhash_head vnode; | |
efa5356b | 136 | struct rhash_head tnode; |
2594e906 NA |
137 | u16 vid; |
138 | u16 flags; | |
9d332e69 | 139 | u16 priv_flags; |
6dada9b1 | 140 | struct br_vlan_stats __percpu *stats; |
243a2e63 | 141 | union { |
2594e906 NA |
142 | struct net_bridge *br; |
143 | struct net_bridge_port *port; | |
144 | }; | |
145 | union { | |
25127759 | 146 | refcount_t refcnt; |
2594e906 NA |
147 | struct net_bridge_vlan *brvlan; |
148 | }; | |
efa5356b RP |
149 | |
150 | struct br_tunnel_info tinfo; | |
151 | ||
2594e906 NA |
152 | struct list_head vlist; |
153 | ||
243a2e63 | 154 | struct rcu_head rcu; |
2594e906 NA |
155 | }; |
156 | ||
157 | /** | |
158 | * struct net_bridge_vlan_group | |
159 | * | |
160 | * @vlan_hash: VLAN entry rhashtable | |
161 | * @vlan_list: sorted VLAN entry list | |
162 | * @num_vlans: number of total VLAN entries | |
77751ee8 | 163 | * @pvid: PVID VLAN id |
2594e906 NA |
164 | * |
165 | * IMPORTANT: Be careful when checking if there're VLAN entries using list | |
166 | * primitives because the bridge can have entries in its list which | |
167 | * are just for global context but not for filtering, i.e. they have | |
168 | * the master flag set but not the brentry flag. If you have to check | |
169 | * if there're "real" entries in the bridge please test @num_vlans | |
170 | */ | |
171 | struct net_bridge_vlan_group { | |
172 | struct rhashtable vlan_hash; | |
efa5356b | 173 | struct rhashtable tunnel_hash; |
2594e906 | 174 | struct list_head vlan_list; |
6cbdceeb | 175 | u16 num_vlans; |
77751ee8 | 176 | u16 pvid; |
243a2e63 VY |
177 | }; |
178 | ||
eb793583 NA |
179 | struct net_bridge_fdb_key { |
180 | mac_addr addr; | |
181 | u16 vlan_id; | |
182 | }; | |
183 | ||
1214628c | 184 | struct net_bridge_fdb_entry { |
eb793583 | 185 | struct rhash_head rhnode; |
1da177e4 LT |
186 | struct net_bridge_port *dst; |
187 | ||
eb793583 NA |
188 | struct net_bridge_fdb_key key; |
189 | struct hlist_node fdb_node; | |
93859b13 JP |
190 | unsigned char is_local:1, |
191 | is_static:1, | |
435f2e7c | 192 | is_sticky:1, |
cf6b8e1e | 193 | added_by_user:1, |
9fe8bcec AS |
194 | added_by_external_learn:1, |
195 | offloaded:1; | |
1214628c NA |
196 | |
197 | /* write-heavy members should not affect lookups */ | |
198 | unsigned long updated ____cacheline_aligned_in_smp; | |
199 | unsigned long used; | |
200 | ||
b22fbf22 | 201 | struct rcu_head rcu; |
1da177e4 LT |
202 | }; |
203 | ||
9d06b6d8 ER |
204 | #define MDB_PG_FLAGS_PERMANENT BIT(0) |
205 | #define MDB_PG_FLAGS_OFFLOAD BIT(1) | |
206 | ||
eb1d1641 HX |
207 | struct net_bridge_port_group { |
208 | struct net_bridge_port *port; | |
e8051688 | 209 | struct net_bridge_port_group __rcu *next; |
eb1d1641 HX |
210 | struct hlist_node mglist; |
211 | struct rcu_head rcu; | |
212 | struct timer_list timer; | |
8ef2a9a5 | 213 | struct br_ip addr; |
9d06b6d8 | 214 | unsigned char flags; |
6db6f0ea | 215 | unsigned char eth_addr[ETH_ALEN]; |
eb1d1641 HX |
216 | }; |
217 | ||
1c1cb6d0 | 218 | struct net_bridge_mdb_entry { |
19e3a9c9 | 219 | struct rhash_head rhnode; |
eb1d1641 | 220 | struct net_bridge *br; |
e8051688 | 221 | struct net_bridge_port_group __rcu *ports; |
eb1d1641 HX |
222 | struct rcu_head rcu; |
223 | struct timer_list timer; | |
8ef2a9a5 | 224 | struct br_ip addr; |
ff0fd34e | 225 | bool host_joined; |
19e3a9c9 | 226 | struct hlist_node mdb_node; |
eb1d1641 HX |
227 | }; |
228 | ||
1f90c7f3 | 229 | struct net_bridge_port { |
1da177e4 LT |
230 | struct net_bridge *br; |
231 | struct net_device *dev; | |
232 | struct list_head list; | |
233 | ||
1f90c7f3 NA |
234 | unsigned long flags; |
235 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
236 | struct net_bridge_vlan_group __rcu *vlgrp; | |
237 | #endif | |
2756f68c | 238 | struct net_bridge_port __rcu *backup_port; |
1f90c7f3 | 239 | |
1da177e4 LT |
240 | /* STP */ |
241 | u8 priority; | |
242 | u8 state; | |
243 | u16 port_no; | |
244 | unsigned char topology_change_ack; | |
245 | unsigned char config_pending; | |
246 | port_id port_id; | |
247 | port_id designated_port; | |
248 | bridge_id designated_root; | |
249 | bridge_id designated_bridge; | |
250 | u32 path_cost; | |
251 | u32 designated_cost; | |
0c03150e | 252 | unsigned long designated_age; |
1da177e4 LT |
253 | |
254 | struct timer_list forward_delay_timer; | |
255 | struct timer_list hold_timer; | |
256 | struct timer_list message_age_timer; | |
257 | struct kobject kobj; | |
258 | struct rcu_head rcu; | |
3982d3d2 | 259 | |
eb1d1641 | 260 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
90010b36 | 261 | struct bridge_mcast_own_query ip4_own_query; |
cc0fdd80 | 262 | #if IS_ENABLED(CONFIG_IPV6) |
90010b36 | 263 | struct bridge_mcast_own_query ip6_own_query; |
cc0fdd80 | 264 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
eb1d1641 | 265 | unsigned char multicast_router; |
1080ab95 | 266 | struct bridge_mcast_stats __percpu *mcast_stats; |
eb1d1641 | 267 | struct timer_list multicast_router_timer; |
eb1d1641 HX |
268 | struct hlist_head mglist; |
269 | struct hlist_node rlist; | |
270 | #endif | |
e0f43752 SA |
271 | |
272 | #ifdef CONFIG_SYSFS | |
273 | char sysfs_name[IFNAMSIZ]; | |
274 | #endif | |
91d2c34a HX |
275 | |
276 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
277 | struct netpoll *np; | |
278 | #endif | |
6bc506b4 IS |
279 | #ifdef CONFIG_NET_SWITCHDEV |
280 | int offload_fwd_mark; | |
281 | #endif | |
5af48b59 | 282 | u16 group_fwd_mask; |
2756f68c | 283 | u16 backup_redirected_cnt; |
1da177e4 LT |
284 | }; |
285 | ||
705e0dea TH |
286 | #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) |
287 | ||
e028e4b8 | 288 | #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) |
f3a6ddf1 | 289 | #define br_promisc_port(p) ((p)->flags & BR_PROMISC) |
e028e4b8 | 290 | |
f350a0a8 JP |
291 | #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) |
292 | ||
b5ed54e9 | 293 | static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) |
294 | { | |
716ec052 | 295 | return rcu_dereference(dev->rx_handler_data); |
b5ed54e9 | 296 | } |
297 | ||
1fb1754a | 298 | static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) |
b5ed54e9 | 299 | { |
ec1e5610 ED |
300 | return br_port_exists(dev) ? |
301 | rtnl_dereference(dev->rx_handler_data) : NULL; | |
b5ed54e9 | 302 | } |
303 | ||
0baa10ff AS |
304 | static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) |
305 | { | |
306 | return br_port_exists(dev) ? | |
307 | rcu_dereference_rtnl(dev->rx_handler_data) : NULL; | |
308 | } | |
309 | ||
ae75767e NA |
310 | enum net_bridge_opts { |
311 | BROPT_VLAN_ENABLED, | |
312 | BROPT_VLAN_STATS_ENABLED, | |
8df3510f NA |
313 | BROPT_NF_CALL_IPTABLES, |
314 | BROPT_NF_CALL_IP6TABLES, | |
315 | BROPT_NF_CALL_ARPTABLES, | |
be3664a0 | 316 | BROPT_GROUP_ADDR_SET, |
13cefad2 | 317 | BROPT_MULTICAST_ENABLED, |
675779ad NA |
318 | BROPT_MULTICAST_QUERIER, |
319 | BROPT_MULTICAST_QUERY_USE_IFADDR, | |
320 | BROPT_MULTICAST_STATS_ENABLED, | |
321 | BROPT_HAS_IPV6_ADDR, | |
c69c2cd4 | 322 | BROPT_NEIGH_SUPPRESS_ENABLED, |
3341d917 | 323 | BROPT_MTU_SET_BY_USER, |
9163a0fc | 324 | BROPT_VLAN_STATS_PER_PORT, |
70e4272b | 325 | BROPT_NO_LL_LEARN, |
ae75767e NA |
326 | }; |
327 | ||
1f90c7f3 | 328 | struct net_bridge { |
1da177e4 | 329 | spinlock_t lock; |
1f90c7f3 | 330 | spinlock_t hash_lock; |
1da177e4 LT |
331 | struct list_head port_list; |
332 | struct net_device *dev; | |
8f84985f | 333 | struct pcpu_sw_netstats __percpu *stats; |
ae75767e | 334 | unsigned long options; |
1f90c7f3 NA |
335 | /* These fields are accessed on each packet */ |
336 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
1f90c7f3 NA |
337 | __be16 vlan_proto; |
338 | u16 default_pvid; | |
339 | struct net_bridge_vlan_group __rcu *vlgrp; | |
340 | #endif | |
341 | ||
eb793583 | 342 | struct rhashtable fdb_hash_tbl; |
34666d46 | 343 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
efb6de9b BT |
344 | union { |
345 | struct rtable fake_rtable; | |
346 | struct rt6_info fake_rt6_info; | |
347 | }; | |
4adf0af6 | 348 | #endif |
515853cc | 349 | u16 group_fwd_mask; |
f2808d22 | 350 | u16 group_fwd_mask_required; |
515853cc | 351 | |
1da177e4 LT |
352 | /* STP */ |
353 | bridge_id designated_root; | |
354 | bridge_id bridge_id; | |
1f90c7f3 NA |
355 | unsigned char topology_change; |
356 | unsigned char topology_change_detected; | |
357 | u16 root_port; | |
1da177e4 LT |
358 | unsigned long max_age; |
359 | unsigned long hello_time; | |
360 | unsigned long forward_delay; | |
1da177e4 | 361 | unsigned long ageing_time; |
34d8acd8 | 362 | unsigned long bridge_max_age; |
1da177e4 LT |
363 | unsigned long bridge_hello_time; |
364 | unsigned long bridge_forward_delay; | |
34d8acd8 | 365 | unsigned long bridge_ageing_time; |
35750b0b | 366 | u32 root_path_cost; |
1da177e4 | 367 | |
fda93d92 | 368 | u8 group_addr[ETH_ALEN]; |
9cde0708 SH |
369 | |
370 | enum { | |
371 | BR_NO_STP, /* no spanning tree */ | |
372 | BR_KERNEL_STP, /* old STP in kernel */ | |
373 | BR_USER_STP, /* new RSTP in userspace */ | |
374 | } stp_enabled; | |
375 | ||
eb1d1641 | 376 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
eb1d1641 | 377 | |
eb1d1641 HX |
378 | u32 hash_max; |
379 | ||
380 | u32 multicast_last_member_count; | |
eb1d1641 HX |
381 | u32 multicast_startup_query_count; |
382 | ||
5e923585 | 383 | u8 multicast_igmp_version; |
675779ad NA |
384 | u8 multicast_router; |
385 | #if IS_ENABLED(CONFIG_IPV6) | |
386 | u8 multicast_mld_version; | |
387 | #endif | |
35750b0b | 388 | spinlock_t multicast_lock; |
eb1d1641 HX |
389 | unsigned long multicast_last_member_interval; |
390 | unsigned long multicast_membership_interval; | |
391 | unsigned long multicast_querier_interval; | |
392 | unsigned long multicast_query_interval; | |
393 | unsigned long multicast_query_response_interval; | |
394 | unsigned long multicast_startup_query_interval; | |
395 | ||
19e3a9c9 NA |
396 | struct rhashtable mdb_hash_tbl; |
397 | ||
398 | struct hlist_head mdb_list; | |
eb1d1641 | 399 | struct hlist_head router_list; |
eb1d1641 HX |
400 | |
401 | struct timer_list multicast_router_timer; | |
90010b36 LL |
402 | struct bridge_mcast_other_query ip4_other_query; |
403 | struct bridge_mcast_own_query ip4_own_query; | |
dc4eb53a | 404 | struct bridge_mcast_querier ip4_querier; |
1080ab95 | 405 | struct bridge_mcast_stats __percpu *mcast_stats; |
cc0fdd80 | 406 | #if IS_ENABLED(CONFIG_IPV6) |
90010b36 LL |
407 | struct bridge_mcast_other_query ip6_other_query; |
408 | struct bridge_mcast_own_query ip6_own_query; | |
dc4eb53a | 409 | struct bridge_mcast_querier ip6_querier; |
cc0fdd80 | 410 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
eb1d1641 HX |
411 | #endif |
412 | ||
1da177e4 LT |
413 | struct timer_list hello_timer; |
414 | struct timer_list tcn_timer; | |
415 | struct timer_list topology_change_timer; | |
f7cdee8a | 416 | struct delayed_work gc_work; |
43b98c4a | 417 | struct kobject *ifobj; |
e028e4b8 | 418 | u32 auto_cnt; |
6bc506b4 IS |
419 | |
420 | #ifdef CONFIG_NET_SWITCHDEV | |
421 | int offload_fwd_mark; | |
422 | #endif | |
eb793583 | 423 | struct hlist_head fdb_list; |
1da177e4 LT |
424 | }; |
425 | ||
68b7c895 HX |
426 | struct br_input_skb_cb { |
427 | struct net_device *brdev; | |
93fdd47e | 428 | |
32dec5dd | 429 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
eb1d1641 HX |
430 | int igmp; |
431 | int mrouters_only; | |
32dec5dd | 432 | #endif |
93fdd47e | 433 | |
842a9ae0 | 434 | bool proxyarp_replied; |
7d850abd | 435 | bool src_port_isolated; |
93fdd47e | 436 | |
20adfa1a VY |
437 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
438 | bool vlan_filtered; | |
439 | #endif | |
6bc506b4 IS |
440 | |
441 | #ifdef CONFIG_NET_SWITCHDEV | |
442 | int offload_fwd_mark; | |
443 | #endif | |
68b7c895 HX |
444 | }; |
445 | ||
446 | #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) | |
447 | ||
32dec5dd YH |
448 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
449 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) | |
450 | #else | |
451 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) | |
452 | #endif | |
453 | ||
28a16c97 | 454 | #define br_printk(level, br, format, args...) \ |
455 | printk(level "%s: " format, (br)->dev->name, ##args) | |
456 | ||
457 | #define br_err(__br, format, args...) \ | |
458 | br_printk(KERN_ERR, __br, format, ##args) | |
459 | #define br_warn(__br, format, args...) \ | |
460 | br_printk(KERN_WARNING, __br, format, ##args) | |
461 | #define br_notice(__br, format, args...) \ | |
462 | br_printk(KERN_NOTICE, __br, format, ##args) | |
463 | #define br_info(__br, format, args...) \ | |
464 | br_printk(KERN_INFO, __br, format, ##args) | |
465 | ||
466 | #define br_debug(br, format, args...) \ | |
467 | pr_debug("%s: " format, (br)->dev->name, ##args) | |
468 | ||
1da177e4 LT |
469 | /* called under bridge lock */ |
470 | static inline int br_is_root_bridge(const struct net_bridge *br) | |
471 | { | |
472 | return !memcmp(&br->bridge_id, &br->designated_root, 8); | |
473 | } | |
474 | ||
2594e906 NA |
475 | /* check if a VLAN entry is global */ |
476 | static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) | |
477 | { | |
478 | return v->flags & BRIDGE_VLAN_INFO_MASTER; | |
479 | } | |
480 | ||
481 | /* check if a VLAN entry is used by the bridge */ | |
482 | static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) | |
483 | { | |
484 | return v->flags & BRIDGE_VLAN_INFO_BRENTRY; | |
485 | } | |
486 | ||
6be144f6 | 487 | /* check if we should use the vlan entry, returns false if it's only context */ |
2594e906 NA |
488 | static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) |
489 | { | |
490 | if (br_vlan_is_master(v)) { | |
491 | if (br_vlan_is_brentry(v)) | |
492 | return true; | |
493 | else | |
494 | return false; | |
495 | } | |
496 | ||
497 | return true; | |
498 | } | |
499 | ||
ae75767e NA |
500 | static inline int br_opt_get(const struct net_bridge *br, |
501 | enum net_bridge_opts opt) | |
502 | { | |
503 | return test_bit(opt, &br->options); | |
504 | } | |
505 | ||
a428afe8 NA |
506 | int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, |
507 | struct netlink_ext_ack *extack); | |
508 | int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); | |
509 | int br_boolopt_multi_toggle(struct net_bridge *br, | |
510 | struct br_boolopt_multi *bm, | |
511 | struct netlink_ext_ack *extack); | |
512 | void br_boolopt_multi_get(const struct net_bridge *br, | |
513 | struct br_boolopt_multi *bm); | |
ae75767e NA |
514 | void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); |
515 | ||
1da177e4 | 516 | /* br_device.c */ |
348662a1 JP |
517 | void br_dev_setup(struct net_device *dev); |
518 | void br_dev_delete(struct net_device *dev, struct list_head *list); | |
519 | netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); | |
cfb478da | 520 | #ifdef CONFIG_NET_POLL_CONTROLLER |
91d2c34a HX |
521 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
522 | struct sk_buff *skb) | |
523 | { | |
524 | struct netpoll *np = p->np; | |
525 | ||
526 | if (np) | |
527 | netpoll_send_skb(np, skb); | |
528 | } | |
529 | ||
a8779ec1 | 530 | int br_netpoll_enable(struct net_bridge_port *p); |
348662a1 | 531 | void br_netpoll_disable(struct net_bridge_port *p); |
cfb478da | 532 | #else |
9f70b0fc | 533 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
91d2c34a HX |
534 | struct sk_buff *skb) |
535 | { | |
536 | } | |
cfb478da | 537 | |
a8779ec1 | 538 | static inline int br_netpoll_enable(struct net_bridge_port *p) |
91d2c34a HX |
539 | { |
540 | return 0; | |
541 | } | |
542 | ||
543 | static inline void br_netpoll_disable(struct net_bridge_port *p) | |
544 | { | |
545 | } | |
cfb478da | 546 | #endif |
1da177e4 LT |
547 | |
548 | /* br_fdb.c */ | |
348662a1 JP |
549 | int br_fdb_init(void); |
550 | void br_fdb_fini(void); | |
eb793583 NA |
551 | int br_fdb_hash_init(struct net_bridge *br); |
552 | void br_fdb_hash_fini(struct net_bridge *br); | |
348662a1 | 553 | void br_fdb_flush(struct net_bridge *br); |
424bb9c9 TM |
554 | void br_fdb_find_delete_local(struct net_bridge *br, |
555 | const struct net_bridge_port *p, | |
556 | const unsigned char *addr, u16 vid); | |
348662a1 JP |
557 | void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); |
558 | void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); | |
f7cdee8a | 559 | void br_fdb_cleanup(struct work_struct *work); |
348662a1 | 560 | void br_fdb_delete_by_port(struct net_bridge *br, |
1ea2d020 | 561 | const struct net_bridge_port *p, u16 vid, int do_all); |
bfd0aeac NA |
562 | struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, |
563 | const unsigned char *addr, | |
564 | __u16 vid); | |
348662a1 JP |
565 | int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); |
566 | int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, | |
567 | unsigned long off); | |
568 | int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, | |
569 | const unsigned char *addr, u16 vid); | |
570 | void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, | |
a5642ab4 | 571 | const unsigned char *addr, u16 vid, bool added_by_user); |
348662a1 JP |
572 | |
573 | int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], | |
f6f6424b | 574 | struct net_device *dev, const unsigned char *addr, u16 vid); |
348662a1 | 575 | int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, |
87b0984e PM |
576 | const unsigned char *addr, u16 vid, u16 nlh_flags, |
577 | struct netlink_ext_ack *extack); | |
348662a1 | 578 | int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, |
d297653d | 579 | struct net_device *dev, struct net_device *fdev, int *idx); |
47674562 RP |
580 | int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, |
581 | const unsigned char *addr, u16 vid, u32 portid, u32 seq, | |
582 | struct netlink_ext_ack *extack); | |
8db24af7 VY |
583 | int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); |
584 | void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); | |
3aeb6617 | 585 | int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, |
161d82de PM |
586 | const unsigned char *addr, u16 vid, |
587 | bool swdev_notify); | |
3aeb6617 | 588 | int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, |
161d82de PM |
589 | const unsigned char *addr, u16 vid, |
590 | bool swdev_notify); | |
9fe8bcec | 591 | void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, |
e9ba0fbc | 592 | const unsigned char *addr, u16 vid, bool offloaded); |
1da177e4 LT |
593 | |
594 | /* br_forward.c */ | |
8addd5e7 NA |
595 | enum br_pkt_type { |
596 | BR_PKT_UNICAST, | |
597 | BR_PKT_MULTICAST, | |
598 | BR_PKT_BROADCAST | |
599 | }; | |
0c4b51f0 | 600 | int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); |
b35c5f63 | 601 | void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, |
37b090e6 | 602 | bool local_rcv, bool local_orig); |
0c4b51f0 | 603 | int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); |
37b090e6 | 604 | void br_flood(struct net_bridge *br, struct sk_buff *skb, |
8addd5e7 | 605 | enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); |
1da177e4 | 606 | |
7d850abd NA |
607 | /* return true if both source port and dest port are isolated */ |
608 | static inline bool br_skb_isolated(const struct net_bridge_port *to, | |
609 | const struct sk_buff *skb) | |
610 | { | |
611 | return BR_INPUT_SKB_CB(skb)->src_port_isolated && | |
612 | (to->flags & BR_ISOLATED); | |
613 | } | |
614 | ||
1da177e4 | 615 | /* br_if.c */ |
faa1cd82 | 616 | void br_port_carrier_check(struct net_bridge_port *p, bool *notified); |
348662a1 JP |
617 | int br_add_bridge(struct net *net, const char *name); |
618 | int br_del_bridge(struct net *net, const char *name); | |
ca752be0 DA |
619 | int br_add_if(struct net_bridge *br, struct net_device *dev, |
620 | struct netlink_ext_ack *extack); | |
348662a1 | 621 | int br_del_if(struct net_bridge *br, struct net_device *dev); |
804b854d | 622 | void br_mtu_auto_adjust(struct net_bridge *br); |
348662a1 JP |
623 | netdev_features_t br_features_recompute(struct net_bridge *br, |
624 | netdev_features_t features); | |
e028e4b8 | 625 | void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); |
2796d0c6 | 626 | void br_manage_promisc(struct net_bridge *br); |
2756f68c | 627 | int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); |
1da177e4 LT |
628 | |
629 | /* br_input.c */ | |
0c4b51f0 | 630 | int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); |
348662a1 | 631 | rx_handler_result_t br_handle_frame(struct sk_buff **pskb); |
1da177e4 | 632 | |
859828c0 JP |
633 | static inline bool br_rx_handler_check_rcu(const struct net_device *dev) |
634 | { | |
635 | return rcu_dereference(dev->rx_handler) == br_handle_frame; | |
636 | } | |
637 | ||
4d4fd361 PM |
638 | static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) |
639 | { | |
640 | return rcu_dereference_rtnl(dev->rx_handler) == br_handle_frame; | |
641 | } | |
642 | ||
859828c0 JP |
643 | static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) |
644 | { | |
645 | return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; | |
646 | } | |
647 | ||
4d4fd361 PM |
648 | static inline struct net_bridge_port * |
649 | br_port_get_check_rtnl(const struct net_device *dev) | |
650 | { | |
651 | return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; | |
652 | } | |
653 | ||
1da177e4 | 654 | /* br_ioctl.c */ |
348662a1 JP |
655 | int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); |
656 | int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, | |
657 | void __user *arg); | |
1da177e4 | 658 | |
eb1d1641 HX |
659 | /* br_multicast.c */ |
660 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING | |
348662a1 | 661 | int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, |
394efd19 | 662 | struct sk_buff *skb, u16 vid); |
348662a1 JP |
663 | struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, |
664 | struct sk_buff *skb, u16 vid); | |
1080ab95 | 665 | int br_multicast_add_port(struct net_bridge_port *port); |
348662a1 JP |
666 | void br_multicast_del_port(struct net_bridge_port *port); |
667 | void br_multicast_enable_port(struct net_bridge_port *port); | |
668 | void br_multicast_disable_port(struct net_bridge_port *port); | |
669 | void br_multicast_init(struct net_bridge *br); | |
670 | void br_multicast_open(struct net_bridge *br); | |
671 | void br_multicast_stop(struct net_bridge *br); | |
e10177ab | 672 | void br_multicast_dev_del(struct net_bridge *br); |
37b090e6 NA |
673 | void br_multicast_flood(struct net_bridge_mdb_entry *mdst, |
674 | struct sk_buff *skb, bool local_rcv, bool local_orig); | |
348662a1 JP |
675 | int br_multicast_set_router(struct net_bridge *br, unsigned long val); |
676 | int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); | |
677 | int br_multicast_toggle(struct net_bridge *br, unsigned long val); | |
678 | int br_multicast_set_querier(struct net_bridge *br, unsigned long val); | |
679 | int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); | |
5e923585 | 680 | int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); |
aa2ae3e7 NA |
681 | #if IS_ENABLED(CONFIG_IPV6) |
682 | int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); | |
683 | #endif | |
348662a1 | 684 | struct net_bridge_mdb_entry * |
19e3a9c9 | 685 | br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); |
348662a1 | 686 | struct net_bridge_mdb_entry * |
19e3a9c9 | 687 | br_multicast_new_group(struct net_bridge *br, struct br_ip *group); |
348662a1 JP |
688 | struct net_bridge_port_group * |
689 | br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, | |
690 | struct net_bridge_port_group __rcu *next, | |
6db6f0ea | 691 | unsigned char flags, const unsigned char *src); |
19e3a9c9 NA |
692 | int br_mdb_hash_init(struct net_bridge *br); |
693 | void br_mdb_hash_fini(struct net_bridge *br); | |
45ebcce5 ER |
694 | void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, |
695 | struct br_ip *group, int type, u8 flags); | |
949f1e39 SA |
696 | void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, |
697 | int type); | |
1080ab95 | 698 | void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, |
a65056ec | 699 | const struct sk_buff *skb, u8 type, u8 dir); |
1080ab95 | 700 | int br_multicast_init_stats(struct net_bridge *br); |
b6fe0440 | 701 | void br_multicast_uninit_stats(struct net_bridge *br); |
1080ab95 NA |
702 | void br_multicast_get_stats(const struct net_bridge *br, |
703 | const struct net_bridge_port *p, | |
704 | struct br_mcast_stats *dest); | |
19e3a9c9 NA |
705 | void br_mdb_init(void); |
706 | void br_mdb_uninit(void); | |
85b35269 | 707 | |
cfd56754 CW |
708 | #define mlock_dereference(X, br) \ |
709 | rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) | |
710 | ||
85b35269 SS |
711 | static inline bool br_multicast_is_router(struct net_bridge *br) |
712 | { | |
713 | return br->multicast_router == 2 || | |
714 | (br->multicast_router == 1 && | |
715 | timer_pending(&br->multicast_router_timer)); | |
716 | } | |
b00589af | 717 | |
cc0fdd80 LL |
718 | static inline bool |
719 | __br_multicast_querier_exists(struct net_bridge *br, | |
0888d5f3 | 720 | struct bridge_mcast_other_query *querier, |
721 | const bool is_ipv6) | |
b00589af | 722 | { |
0888d5f3 | 723 | bool own_querier_enabled; |
724 | ||
675779ad NA |
725 | if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { |
726 | if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) | |
0888d5f3 | 727 | own_querier_enabled = false; |
728 | else | |
729 | own_querier_enabled = true; | |
730 | } else { | |
731 | own_querier_enabled = false; | |
732 | } | |
733 | ||
cc0fdd80 | 734 | return time_is_before_jiffies(querier->delay_time) && |
0888d5f3 | 735 | (own_querier_enabled || timer_pending(&querier->timer)); |
cc0fdd80 LL |
736 | } |
737 | ||
738 | static inline bool br_multicast_querier_exists(struct net_bridge *br, | |
739 | struct ethhdr *eth) | |
740 | { | |
741 | switch (eth->h_proto) { | |
742 | case (htons(ETH_P_IP)): | |
0888d5f3 | 743 | return __br_multicast_querier_exists(br, |
744 | &br->ip4_other_query, false); | |
cc0fdd80 LL |
745 | #if IS_ENABLED(CONFIG_IPV6) |
746 | case (htons(ETH_P_IPV6)): | |
0888d5f3 | 747 | return __br_multicast_querier_exists(br, |
748 | &br->ip6_other_query, true); | |
cc0fdd80 LL |
749 | #endif |
750 | default: | |
751 | return false; | |
752 | } | |
b00589af | 753 | } |
1080ab95 NA |
754 | |
755 | static inline int br_multicast_igmp_type(const struct sk_buff *skb) | |
756 | { | |
757 | return BR_INPUT_SKB_CB(skb)->igmp; | |
758 | } | |
eb1d1641 HX |
759 | #else |
760 | static inline int br_multicast_rcv(struct net_bridge *br, | |
761 | struct net_bridge_port *port, | |
06499098 VY |
762 | struct sk_buff *skb, |
763 | u16 vid) | |
eb1d1641 HX |
764 | { |
765 | return 0; | |
766 | } | |
767 | ||
768 | static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, | |
fbca58a2 | 769 | struct sk_buff *skb, u16 vid) |
eb1d1641 HX |
770 | { |
771 | return NULL; | |
772 | } | |
773 | ||
1080ab95 | 774 | static inline int br_multicast_add_port(struct net_bridge_port *port) |
eb1d1641 | 775 | { |
1080ab95 | 776 | return 0; |
eb1d1641 HX |
777 | } |
778 | ||
779 | static inline void br_multicast_del_port(struct net_bridge_port *port) | |
780 | { | |
781 | } | |
782 | ||
783 | static inline void br_multicast_enable_port(struct net_bridge_port *port) | |
784 | { | |
785 | } | |
786 | ||
787 | static inline void br_multicast_disable_port(struct net_bridge_port *port) | |
788 | { | |
789 | } | |
790 | ||
791 | static inline void br_multicast_init(struct net_bridge *br) | |
792 | { | |
793 | } | |
794 | ||
795 | static inline void br_multicast_open(struct net_bridge *br) | |
796 | { | |
797 | } | |
798 | ||
799 | static inline void br_multicast_stop(struct net_bridge *br) | |
800 | { | |
801 | } | |
5cb5e947 | 802 | |
a7ce45a7 NA |
803 | static inline void br_multicast_dev_del(struct net_bridge *br) |
804 | { | |
805 | } | |
806 | ||
37b090e6 NA |
807 | static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, |
808 | struct sk_buff *skb, | |
809 | bool local_rcv, bool local_orig) | |
5cb5e947 HX |
810 | { |
811 | } | |
812 | ||
eb1d1641 HX |
813 | static inline bool br_multicast_is_router(struct net_bridge *br) |
814 | { | |
03aaa9e2 | 815 | return false; |
eb1d1641 | 816 | } |
37b090e6 | 817 | |
cc0fdd80 LL |
818 | static inline bool br_multicast_querier_exists(struct net_bridge *br, |
819 | struct ethhdr *eth) | |
b00589af LL |
820 | { |
821 | return false; | |
822 | } | |
37b090e6 | 823 | |
fdb184d1 RR |
824 | static inline void br_mdb_init(void) |
825 | { | |
826 | } | |
37b090e6 | 827 | |
fdb184d1 RR |
828 | static inline void br_mdb_uninit(void) |
829 | { | |
830 | } | |
1080ab95 | 831 | |
19e3a9c9 NA |
832 | static inline int br_mdb_hash_init(struct net_bridge *br) |
833 | { | |
834 | return 0; | |
835 | } | |
836 | ||
837 | static inline void br_mdb_hash_fini(struct net_bridge *br) | |
838 | { | |
839 | } | |
840 | ||
1080ab95 NA |
841 | static inline void br_multicast_count(struct net_bridge *br, |
842 | const struct net_bridge_port *p, | |
a65056ec NA |
843 | const struct sk_buff *skb, |
844 | u8 type, u8 dir) | |
1080ab95 NA |
845 | { |
846 | } | |
847 | ||
848 | static inline int br_multicast_init_stats(struct net_bridge *br) | |
849 | { | |
850 | return 0; | |
851 | } | |
852 | ||
b6fe0440 IS |
853 | static inline void br_multicast_uninit_stats(struct net_bridge *br) |
854 | { | |
855 | } | |
856 | ||
1080ab95 NA |
857 | static inline int br_multicast_igmp_type(const struct sk_buff *skb) |
858 | { | |
859 | return 0; | |
860 | } | |
85b35269 | 861 | #endif |
eb1d1641 | 862 | |
243a2e63 VY |
863 | /* br_vlan.c */ |
864 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
77751ee8 NA |
865 | bool br_allowed_ingress(const struct net_bridge *br, |
866 | struct net_bridge_vlan_group *vg, struct sk_buff *skb, | |
867 | u16 *vid); | |
868 | bool br_allowed_egress(struct net_bridge_vlan_group *vg, | |
348662a1 | 869 | const struct sk_buff *skb); |
e0d7968a | 870 | bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); |
348662a1 | 871 | struct sk_buff *br_handle_vlan(struct net_bridge *br, |
11538d03 | 872 | const struct net_bridge_port *port, |
2594e906 | 873 | struct net_bridge_vlan_group *vg, |
348662a1 | 874 | struct sk_buff *skb); |
f418af63 | 875 | int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, |
169327d5 | 876 | bool *changed, struct netlink_ext_ack *extack); |
348662a1 JP |
877 | int br_vlan_delete(struct net_bridge *br, u16 vid); |
878 | void br_vlan_flush(struct net_bridge *br); | |
2594e906 | 879 | struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); |
204177f3 | 880 | void br_recalculate_fwd_mask(struct net_bridge *br); |
a7854037 | 881 | int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
348662a1 | 882 | int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
d2d427b3 | 883 | int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); |
204177f3 | 884 | int br_vlan_set_proto(struct net_bridge *br, unsigned long val); |
6dada9b1 | 885 | int br_vlan_set_stats(struct net_bridge *br, unsigned long val); |
9163a0fc | 886 | int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); |
5be5a2df | 887 | int br_vlan_init(struct net_bridge *br); |
96a20d9d | 888 | int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); |
169327d5 PM |
889 | int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, |
890 | struct netlink_ext_ack *extack); | |
f418af63 | 891 | int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, |
169327d5 | 892 | bool *changed, struct netlink_ext_ack *extack); |
348662a1 JP |
893 | int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); |
894 | void nbp_vlan_flush(struct net_bridge_port *port); | |
169327d5 | 895 | int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); |
2594e906 | 896 | int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); |
a60c0903 NA |
897 | void br_vlan_get_stats(const struct net_bridge_vlan *v, |
898 | struct br_vlan_stats *stats); | |
a37b85c9 | 899 | |
2594e906 NA |
900 | static inline struct net_bridge_vlan_group *br_vlan_group( |
901 | const struct net_bridge *br) | |
a37b85c9 | 902 | { |
907b1e6e | 903 | return rtnl_dereference(br->vlgrp); |
a37b85c9 VY |
904 | } |
905 | ||
2594e906 NA |
906 | static inline struct net_bridge_vlan_group *nbp_vlan_group( |
907 | const struct net_bridge_port *p) | |
a37b85c9 | 908 | { |
907b1e6e NA |
909 | return rtnl_dereference(p->vlgrp); |
910 | } | |
911 | ||
912 | static inline struct net_bridge_vlan_group *br_vlan_group_rcu( | |
913 | const struct net_bridge *br) | |
914 | { | |
915 | return rcu_dereference(br->vlgrp); | |
916 | } | |
917 | ||
918 | static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( | |
919 | const struct net_bridge_port *p) | |
920 | { | |
921 | return rcu_dereference(p->vlgrp); | |
a37b85c9 VY |
922 | } |
923 | ||
924 | /* Since bridge now depends on 8021Q module, but the time bridge sees the | |
925 | * skb, the vlan tag will always be present if the frame was tagged. | |
926 | */ | |
927 | static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) | |
928 | { | |
929 | int err = 0; | |
930 | ||
2594e906 | 931 | if (skb_vlan_tag_present(skb)) { |
5978f8a9 | 932 | *vid = skb_vlan_tag_get_id(skb); |
2594e906 | 933 | } else { |
a37b85c9 VY |
934 | *vid = 0; |
935 | err = -EINVAL; | |
936 | } | |
937 | ||
938 | return err; | |
939 | } | |
78851988 | 940 | |
77751ee8 | 941 | static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) |
2594e906 | 942 | { |
77751ee8 | 943 | if (!vg) |
2594e906 NA |
944 | return 0; |
945 | ||
946 | smp_rmb(); | |
77751ee8 | 947 | return vg->pvid; |
78851988 VY |
948 | } |
949 | ||
243a2e63 | 950 | #else |
77751ee8 NA |
951 | static inline bool br_allowed_ingress(const struct net_bridge *br, |
952 | struct net_bridge_vlan_group *vg, | |
78851988 VY |
953 | struct sk_buff *skb, |
954 | u16 *vid) | |
a37b85c9 VY |
955 | { |
956 | return true; | |
957 | } | |
958 | ||
2594e906 | 959 | static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, |
85f46c6b VY |
960 | const struct sk_buff *skb) |
961 | { | |
962 | return true; | |
963 | } | |
964 | ||
e0d7968a TM |
965 | static inline bool br_should_learn(struct net_bridge_port *p, |
966 | struct sk_buff *skb, u16 *vid) | |
967 | { | |
968 | return true; | |
969 | } | |
970 | ||
78851988 | 971 | static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, |
11538d03 | 972 | const struct net_bridge_port *port, |
2594e906 | 973 | struct net_bridge_vlan_group *vg, |
78851988 VY |
974 | struct sk_buff *skb) |
975 | { | |
976 | return skb; | |
977 | } | |
978 | ||
f418af63 | 979 | static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, |
169327d5 | 980 | bool *changed, struct netlink_ext_ack *extack) |
243a2e63 | 981 | { |
f418af63 | 982 | *changed = false; |
243a2e63 VY |
983 | return -EOPNOTSUPP; |
984 | } | |
985 | ||
986 | static inline int br_vlan_delete(struct net_bridge *br, u16 vid) | |
987 | { | |
988 | return -EOPNOTSUPP; | |
989 | } | |
990 | ||
991 | static inline void br_vlan_flush(struct net_bridge *br) | |
992 | { | |
993 | } | |
994 | ||
204177f3 TM |
995 | static inline void br_recalculate_fwd_mask(struct net_bridge *br) |
996 | { | |
997 | } | |
998 | ||
5be5a2df | 999 | static inline int br_vlan_init(struct net_bridge *br) |
8580e211 | 1000 | { |
5be5a2df | 1001 | return 0; |
8580e211 TM |
1002 | } |
1003 | ||
f418af63 | 1004 | static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, |
169327d5 | 1005 | bool *changed, struct netlink_ext_ack *extack) |
243a2e63 | 1006 | { |
f418af63 | 1007 | *changed = false; |
243a2e63 VY |
1008 | return -EOPNOTSUPP; |
1009 | } | |
1010 | ||
1011 | static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) | |
1012 | { | |
1013 | return -EOPNOTSUPP; | |
1014 | } | |
1015 | ||
1016 | static inline void nbp_vlan_flush(struct net_bridge_port *port) | |
1017 | { | |
1018 | } | |
1019 | ||
2594e906 NA |
1020 | static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, |
1021 | u16 vid) | |
a37b85c9 VY |
1022 | { |
1023 | return NULL; | |
1024 | } | |
1025 | ||
169327d5 PM |
1026 | static inline int nbp_vlan_init(struct net_bridge_port *port, |
1027 | struct netlink_ext_ack *extack) | |
bc9a25d2 | 1028 | { |
2594e906 | 1029 | return 0; |
bc9a25d2 VY |
1030 | } |
1031 | ||
2594e906 | 1032 | static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) |
5be5a2df VY |
1033 | { |
1034 | return 0; | |
1035 | } | |
1036 | ||
77751ee8 | 1037 | static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) |
78851988 | 1038 | { |
3df6bf45 | 1039 | return 0; |
78851988 | 1040 | } |
2796d0c6 | 1041 | |
a7854037 NA |
1042 | static inline int __br_vlan_filter_toggle(struct net_bridge *br, |
1043 | unsigned long val) | |
1044 | { | |
1045 | return -EOPNOTSUPP; | |
1046 | } | |
2594e906 NA |
1047 | |
1048 | static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, | |
1049 | u32 filter_mask) | |
1050 | { | |
1051 | return 0; | |
1052 | } | |
1053 | ||
1054 | static inline struct net_bridge_vlan_group *br_vlan_group( | |
1055 | const struct net_bridge *br) | |
1056 | { | |
1057 | return NULL; | |
1058 | } | |
1059 | ||
1060 | static inline struct net_bridge_vlan_group *nbp_vlan_group( | |
1061 | const struct net_bridge_port *p) | |
1062 | { | |
1063 | return NULL; | |
1064 | } | |
907b1e6e NA |
1065 | |
1066 | static inline struct net_bridge_vlan_group *br_vlan_group_rcu( | |
1067 | const struct net_bridge *br) | |
1068 | { | |
1069 | return NULL; | |
1070 | } | |
1071 | ||
1072 | static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( | |
1073 | const struct net_bridge_port *p) | |
1074 | { | |
1075 | return NULL; | |
1076 | } | |
a60c0903 NA |
1077 | |
1078 | static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, | |
1079 | struct br_vlan_stats *stats) | |
1080 | { | |
1081 | } | |
243a2e63 VY |
1082 | #endif |
1083 | ||
1a4ba64d PNA |
1084 | struct nf_br_ops { |
1085 | int (*br_dev_xmit_hook)(struct sk_buff *skb); | |
1086 | }; | |
1087 | extern const struct nf_br_ops __rcu *nf_br_ops; | |
1088 | ||
1da177e4 | 1089 | /* br_netfilter.c */ |
34666d46 PNA |
1090 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
1091 | int br_nf_core_init(void); | |
1092 | void br_nf_core_fini(void); | |
348662a1 | 1093 | void br_netfilter_rtable_init(struct net_bridge *); |
c0909713 | 1094 | #else |
34666d46 PNA |
1095 | static inline int br_nf_core_init(void) { return 0; } |
1096 | static inline void br_nf_core_fini(void) {} | |
4adf0af6 | 1097 | #define br_netfilter_rtable_init(x) |
c0909713 | 1098 | #endif |
1da177e4 LT |
1099 | |
1100 | /* br_stp.c */ | |
775dd692 | 1101 | void br_set_state(struct net_bridge_port *p, unsigned int state); |
348662a1 JP |
1102 | struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); |
1103 | void br_init_port(struct net_bridge_port *p); | |
1104 | void br_become_designated_port(struct net_bridge_port *p); | |
1da177e4 | 1105 | |
348662a1 JP |
1106 | void __br_set_forward_delay(struct net_bridge *br, unsigned long t); |
1107 | int br_set_forward_delay(struct net_bridge *br, unsigned long x); | |
1108 | int br_set_hello_time(struct net_bridge *br, unsigned long x); | |
1109 | int br_set_max_age(struct net_bridge *br, unsigned long x); | |
82dd4332 | 1110 | int __set_ageing_time(struct net_device *dev, unsigned long t); |
9e0b27fe | 1111 | int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); |
14f98f25 | 1112 | |
1113 | ||
1da177e4 | 1114 | /* br_stp_if.c */ |
348662a1 JP |
1115 | void br_stp_enable_bridge(struct net_bridge *br); |
1116 | void br_stp_disable_bridge(struct net_bridge *br); | |
1117 | void br_stp_set_enabled(struct net_bridge *br, unsigned long val); | |
1118 | void br_stp_enable_port(struct net_bridge_port *p); | |
1119 | void br_stp_disable_port(struct net_bridge_port *p); | |
1120 | bool br_stp_recalculate_bridge_id(struct net_bridge *br); | |
1121 | void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); | |
1122 | void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); | |
1123 | int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); | |
1124 | int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); | |
1125 | ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); | |
1da177e4 LT |
1126 | |
1127 | /* br_stp_bpdu.c */ | |
7c85fbf0 | 1128 | struct stp_proto; |
348662a1 JP |
1129 | void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, |
1130 | struct net_device *dev); | |
1da177e4 LT |
1131 | |
1132 | /* br_stp_timer.c */ | |
348662a1 JP |
1133 | void br_stp_timer_init(struct net_bridge *br); |
1134 | void br_stp_port_timer_init(struct net_bridge_port *p); | |
1135 | unsigned long br_timer_value(const struct timer_list *timer); | |
1da177e4 LT |
1136 | |
1137 | /* br.c */ | |
e6373c4c | 1138 | #if IS_ENABLED(CONFIG_ATM_LANE) |
da678292 MM |
1139 | extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); |
1140 | #endif | |
1da177e4 | 1141 | |
11dc1f36 | 1142 | /* br_netlink.c */ |
149ddd83 | 1143 | extern struct rtnl_link_ops br_link_ops; |
348662a1 JP |
1144 | int br_netlink_init(void); |
1145 | void br_netlink_fini(void); | |
92899063 NA |
1146 | void br_ifinfo_notify(int event, const struct net_bridge *br, |
1147 | const struct net_bridge_port *port); | |
2fd527b7 PM |
1148 | int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, |
1149 | struct netlink_ext_ack *extack); | |
add511b3 | 1150 | int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); |
348662a1 | 1151 | int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, |
46c264da | 1152 | u32 filter_mask, int nlflags); |
11dc1f36 | 1153 | |
1da177e4 LT |
1154 | #ifdef CONFIG_SYSFS |
1155 | /* br_sysfs_if.c */ | |
52cf25d0 | 1156 | extern const struct sysfs_ops brport_sysfs_ops; |
348662a1 JP |
1157 | int br_sysfs_addif(struct net_bridge_port *p); |
1158 | int br_sysfs_renameif(struct net_bridge_port *p); | |
1da177e4 LT |
1159 | |
1160 | /* br_sysfs_br.c */ | |
348662a1 JP |
1161 | int br_sysfs_addbr(struct net_device *dev); |
1162 | void br_sysfs_delbr(struct net_device *dev); | |
1da177e4 LT |
1163 | |
1164 | #else | |
1165 | ||
0cb2bbbe LJ |
1166 | static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } |
1167 | static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } | |
1168 | static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } | |
1169 | static inline void br_sysfs_delbr(struct net_device *dev) { return; } | |
1da177e4 LT |
1170 | #endif /* CONFIG_SYSFS */ |
1171 | ||
6bc506b4 IS |
1172 | /* br_switchdev.c */ |
1173 | #ifdef CONFIG_NET_SWITCHDEV | |
1174 | int nbp_switchdev_mark_set(struct net_bridge_port *p); | |
1175 | void nbp_switchdev_frame_mark(const struct net_bridge_port *p, | |
1176 | struct sk_buff *skb); | |
1177 | bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, | |
1178 | const struct sk_buff *skb); | |
3922285d AS |
1179 | int br_switchdev_set_port_flag(struct net_bridge_port *p, |
1180 | unsigned long flags, | |
1181 | unsigned long mask); | |
6b26b51b AS |
1182 | void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, |
1183 | int type); | |
169327d5 PM |
1184 | int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, |
1185 | struct netlink_ext_ack *extack); | |
d66e4348 | 1186 | int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); |
f1c2eddf IS |
1187 | |
1188 | static inline void br_switchdev_frame_unmark(struct sk_buff *skb) | |
1189 | { | |
1190 | skb->offload_fwd_mark = 0; | |
1191 | } | |
6bc506b4 IS |
1192 | #else |
1193 | static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) | |
1194 | { | |
1195 | return 0; | |
1196 | } | |
1197 | ||
1198 | static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, | |
1199 | struct sk_buff *skb) | |
1200 | { | |
1201 | } | |
1202 | ||
1203 | static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, | |
1204 | const struct sk_buff *skb) | |
1205 | { | |
1206 | return true; | |
1207 | } | |
3922285d AS |
1208 | |
1209 | static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, | |
1210 | unsigned long flags, | |
1211 | unsigned long mask) | |
1212 | { | |
1213 | return 0; | |
1214 | } | |
6b26b51b | 1215 | |
d66e4348 | 1216 | static inline int br_switchdev_port_vlan_add(struct net_device *dev, |
169327d5 PM |
1217 | u16 vid, u16 flags, |
1218 | struct netlink_ext_ack *extack) | |
d66e4348 PM |
1219 | { |
1220 | return -EOPNOTSUPP; | |
1221 | } | |
1222 | ||
1223 | static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) | |
1224 | { | |
1225 | return -EOPNOTSUPP; | |
1226 | } | |
1227 | ||
6b26b51b AS |
1228 | static inline void |
1229 | br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) | |
1230 | { | |
1231 | } | |
f1c2eddf IS |
1232 | |
1233 | static inline void br_switchdev_frame_unmark(struct sk_buff *skb) | |
1234 | { | |
1235 | } | |
6bc506b4 IS |
1236 | #endif /* CONFIG_NET_SWITCHDEV */ |
1237 | ||
057658cb | 1238 | /* br_arp_nd_proxy.c */ |
821f1b21 | 1239 | void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); |
057658cb RP |
1240 | void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, |
1241 | u16 vid, struct net_bridge_port *p); | |
ed842fae RP |
1242 | void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, |
1243 | u16 vid, struct net_bridge_port *p, struct nd_msg *msg); | |
1244 | struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); | |
1da177e4 | 1245 | #endif |