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2874c5fd | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
1da177e4 LT |
2 | /* |
3 | * Linux ethernet bridge | |
4 | * | |
5 | * Authors: | |
6 | * Lennert Buytenhek <buytenh@gnu.org> | |
1da177e4 LT |
7 | */ |
8 | ||
9 | #ifndef _BR_PRIVATE_H | |
10 | #define _BR_PRIVATE_H | |
11 | ||
12 | #include <linux/netdevice.h> | |
1da177e4 | 13 | #include <linux/if_bridge.h> |
91d2c34a | 14 | #include <linux/netpoll.h> |
406818ff | 15 | #include <linux/u64_stats_sync.h> |
4adf0af6 | 16 | #include <net/route.h> |
efb6de9b | 17 | #include <net/ip6_fib.h> |
243a2e63 | 18 | #include <linux/if_vlan.h> |
2594e906 | 19 | #include <linux/rhashtable.h> |
25127759 | 20 | #include <linux/refcount.h> |
1da177e4 LT |
21 | |
22 | #define BR_HASH_BITS 8 | |
23 | #define BR_HASH_SIZE (1 << BR_HASH_BITS) | |
24 | ||
25 | #define BR_HOLD_TIME (1*HZ) | |
26 | ||
27 | #define BR_PORT_BITS 10 | |
28 | #define BR_MAX_PORTS (1<<BR_PORT_BITS) | |
29 | ||
d08c6bc0 NA |
30 | #define BR_MULTICAST_DEFAULT_HASH_MAX 4096 |
31 | ||
9cde0708 SH |
32 | #define BR_VERSION "2.3" |
33 | ||
515853cc | 34 | /* Control of forwarding link local multicast */ |
35 | #define BR_GROUPFWD_DEFAULT 0 | |
784b58a3 | 36 | /* Don't allow forwarding of control protocols like STP, MAC PAUSE and LACP */ |
5af48b59 NA |
37 | enum { |
38 | BR_GROUPFWD_STP = BIT(0), | |
39 | BR_GROUPFWD_MACPAUSE = BIT(1), | |
40 | BR_GROUPFWD_LACP = BIT(2), | |
41 | }; | |
42 | ||
43 | #define BR_GROUPFWD_RESTRICTED (BR_GROUPFWD_STP | BR_GROUPFWD_MACPAUSE | \ | |
44 | BR_GROUPFWD_LACP) | |
f2808d22 TM |
45 | /* The Nearest Customer Bridge Group Address, 01-80-C2-00-00-[00,0B,0C,0D,0F] */ |
46 | #define BR_GROUPFWD_8021AD 0xB801u | |
515853cc | 47 | |
9cde0708 SH |
48 | /* Path to usermode spanning tree program */ |
49 | #define BR_STP_PROG "/sbin/bridge-stp" | |
8cbb512e | 50 | |
1da177e4 LT |
51 | typedef struct bridge_id bridge_id; |
52 | typedef struct mac_addr mac_addr; | |
53 | typedef __u16 port_id; | |
54 | ||
1c1cb6d0 | 55 | struct bridge_id { |
1da177e4 | 56 | unsigned char prio[2]; |
e5a727f6 | 57 | unsigned char addr[ETH_ALEN]; |
1da177e4 LT |
58 | }; |
59 | ||
1c1cb6d0 | 60 | struct mac_addr { |
e5a727f6 | 61 | unsigned char addr[ETH_ALEN]; |
1da177e4 LT |
62 | }; |
63 | ||
cc0fdd80 LL |
64 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
65 | /* our own querier */ | |
90010b36 | 66 | struct bridge_mcast_own_query { |
cc0fdd80 LL |
67 | struct timer_list timer; |
68 | u32 startup_sent; | |
69 | }; | |
70 | ||
71 | /* other querier */ | |
90010b36 | 72 | struct bridge_mcast_other_query { |
cc0fdd80 LL |
73 | struct timer_list timer; |
74 | unsigned long delay_time; | |
75 | }; | |
dc4eb53a LL |
76 | |
77 | /* selected querier */ | |
78 | struct bridge_mcast_querier { | |
79 | struct br_ip addr; | |
2cd41431 | 80 | struct net_bridge_port __rcu *port; |
dc4eb53a | 81 | }; |
1080ab95 NA |
82 | |
83 | /* IGMP/MLD statistics */ | |
84 | struct bridge_mcast_stats { | |
85 | struct br_mcast_stats mstats; | |
86 | struct u64_stats_sync syncp; | |
87 | }; | |
cc0fdd80 LL |
88 | #endif |
89 | ||
6dada9b1 NA |
90 | struct br_vlan_stats { |
91 | u64 rx_bytes; | |
92 | u64 rx_packets; | |
93 | u64 tx_bytes; | |
94 | u64 tx_packets; | |
95 | struct u64_stats_sync syncp; | |
96 | }; | |
97 | ||
efa5356b RP |
98 | struct br_tunnel_info { |
99 | __be64 tunnel_id; | |
100 | struct metadata_dst *tunnel_dst; | |
101 | }; | |
102 | ||
9d332e69 NA |
103 | /* private vlan flags */ |
104 | enum { | |
105 | BR_VLFLAG_PER_PORT_STATS = BIT(0), | |
27973793 | 106 | BR_VLFLAG_ADDED_BY_SWITCHDEV = BIT(1), |
9d332e69 NA |
107 | }; |
108 | ||
2594e906 NA |
109 | /** |
110 | * struct net_bridge_vlan - per-vlan entry | |
111 | * | |
112 | * @vnode: rhashtable member | |
113 | * @vid: VLAN id | |
114 | * @flags: bridge vlan flags | |
9d332e69 | 115 | * @priv_flags: private (in-kernel) bridge vlan flags |
a580c76d | 116 | * @state: STP state (e.g. blocking, learning, forwarding) |
6dada9b1 | 117 | * @stats: per-cpu VLAN statistics |
2594e906 NA |
118 | * @br: if MASTER flag set, this points to a bridge struct |
119 | * @port: if MASTER flag unset, this points to a port struct | |
120 | * @refcnt: if MASTER flag set, this is bumped for each port referencing it | |
121 | * @brvlan: if MASTER flag unset, this points to the global per-VLAN context | |
122 | * for this VLAN entry | |
123 | * @vlist: sorted list of VLAN entries | |
124 | * @rcu: used for entry destruction | |
125 | * | |
126 | * This structure is shared between the global per-VLAN entries contained in | |
127 | * the bridge rhashtable and the local per-port per-VLAN entries contained in | |
128 | * the port's rhashtable. The union entries should be interpreted depending on | |
129 | * the entry flags that are set. | |
130 | */ | |
131 | struct net_bridge_vlan { | |
132 | struct rhash_head vnode; | |
efa5356b | 133 | struct rhash_head tnode; |
2594e906 NA |
134 | u16 vid; |
135 | u16 flags; | |
9d332e69 | 136 | u16 priv_flags; |
a580c76d | 137 | u8 state; |
6dada9b1 | 138 | struct br_vlan_stats __percpu *stats; |
243a2e63 | 139 | union { |
2594e906 NA |
140 | struct net_bridge *br; |
141 | struct net_bridge_port *port; | |
142 | }; | |
143 | union { | |
25127759 | 144 | refcount_t refcnt; |
2594e906 NA |
145 | struct net_bridge_vlan *brvlan; |
146 | }; | |
efa5356b RP |
147 | |
148 | struct br_tunnel_info tinfo; | |
149 | ||
2594e906 NA |
150 | struct list_head vlist; |
151 | ||
243a2e63 | 152 | struct rcu_head rcu; |
2594e906 NA |
153 | }; |
154 | ||
155 | /** | |
156 | * struct net_bridge_vlan_group | |
157 | * | |
158 | * @vlan_hash: VLAN entry rhashtable | |
159 | * @vlan_list: sorted VLAN entry list | |
160 | * @num_vlans: number of total VLAN entries | |
77751ee8 | 161 | * @pvid: PVID VLAN id |
a580c76d | 162 | * @pvid_state: PVID's STP state (e.g. forwarding, learning, blocking) |
2594e906 NA |
163 | * |
164 | * IMPORTANT: Be careful when checking if there're VLAN entries using list | |
165 | * primitives because the bridge can have entries in its list which | |
166 | * are just for global context but not for filtering, i.e. they have | |
167 | * the master flag set but not the brentry flag. If you have to check | |
168 | * if there're "real" entries in the bridge please test @num_vlans | |
169 | */ | |
170 | struct net_bridge_vlan_group { | |
171 | struct rhashtable vlan_hash; | |
efa5356b | 172 | struct rhashtable tunnel_hash; |
2594e906 | 173 | struct list_head vlan_list; |
6cbdceeb | 174 | u16 num_vlans; |
77751ee8 | 175 | u16 pvid; |
a580c76d | 176 | u8 pvid_state; |
243a2e63 VY |
177 | }; |
178 | ||
6869c3b0 NA |
179 | /* bridge fdb flags */ |
180 | enum { | |
181 | BR_FDB_LOCAL, | |
29e63fff | 182 | BR_FDB_STATIC, |
e0458d9a | 183 | BR_FDB_STICKY, |
ac3ca6af | 184 | BR_FDB_ADDED_BY_USER, |
b5cd9f7c | 185 | BR_FDB_ADDED_BY_EXT_LEARN, |
d38c6e3d | 186 | BR_FDB_OFFLOADED, |
6869c3b0 NA |
187 | }; |
188 | ||
eb793583 NA |
189 | struct net_bridge_fdb_key { |
190 | mac_addr addr; | |
191 | u16 vlan_id; | |
192 | }; | |
193 | ||
1214628c | 194 | struct net_bridge_fdb_entry { |
eb793583 | 195 | struct rhash_head rhnode; |
1da177e4 LT |
196 | struct net_bridge_port *dst; |
197 | ||
eb793583 NA |
198 | struct net_bridge_fdb_key key; |
199 | struct hlist_node fdb_node; | |
6869c3b0 | 200 | unsigned long flags; |
1214628c NA |
201 | |
202 | /* write-heavy members should not affect lookups */ | |
203 | unsigned long updated ____cacheline_aligned_in_smp; | |
204 | unsigned long used; | |
205 | ||
b22fbf22 | 206 | struct rcu_head rcu; |
1da177e4 LT |
207 | }; |
208 | ||
9d06b6d8 ER |
209 | #define MDB_PG_FLAGS_PERMANENT BIT(0) |
210 | #define MDB_PG_FLAGS_OFFLOAD BIT(1) | |
3247b272 | 211 | #define MDB_PG_FLAGS_FAST_LEAVE BIT(2) |
9d06b6d8 | 212 | |
eb1d1641 HX |
213 | struct net_bridge_port_group { |
214 | struct net_bridge_port *port; | |
e8051688 | 215 | struct net_bridge_port_group __rcu *next; |
eb1d1641 HX |
216 | struct hlist_node mglist; |
217 | struct rcu_head rcu; | |
218 | struct timer_list timer; | |
8ef2a9a5 | 219 | struct br_ip addr; |
9d06b6d8 | 220 | unsigned char flags; |
6db6f0ea | 221 | unsigned char eth_addr[ETH_ALEN]; |
eb1d1641 HX |
222 | }; |
223 | ||
1c1cb6d0 | 224 | struct net_bridge_mdb_entry { |
19e3a9c9 | 225 | struct rhash_head rhnode; |
eb1d1641 | 226 | struct net_bridge *br; |
e8051688 | 227 | struct net_bridge_port_group __rcu *ports; |
eb1d1641 HX |
228 | struct rcu_head rcu; |
229 | struct timer_list timer; | |
8ef2a9a5 | 230 | struct br_ip addr; |
ff0fd34e | 231 | bool host_joined; |
19e3a9c9 | 232 | struct hlist_node mdb_node; |
eb1d1641 HX |
233 | }; |
234 | ||
1f90c7f3 | 235 | struct net_bridge_port { |
1da177e4 LT |
236 | struct net_bridge *br; |
237 | struct net_device *dev; | |
238 | struct list_head list; | |
239 | ||
1f90c7f3 NA |
240 | unsigned long flags; |
241 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
242 | struct net_bridge_vlan_group __rcu *vlgrp; | |
243 | #endif | |
2756f68c | 244 | struct net_bridge_port __rcu *backup_port; |
1f90c7f3 | 245 | |
1da177e4 LT |
246 | /* STP */ |
247 | u8 priority; | |
248 | u8 state; | |
249 | u16 port_no; | |
250 | unsigned char topology_change_ack; | |
251 | unsigned char config_pending; | |
252 | port_id port_id; | |
253 | port_id designated_port; | |
254 | bridge_id designated_root; | |
255 | bridge_id designated_bridge; | |
256 | u32 path_cost; | |
257 | u32 designated_cost; | |
0c03150e | 258 | unsigned long designated_age; |
1da177e4 LT |
259 | |
260 | struct timer_list forward_delay_timer; | |
261 | struct timer_list hold_timer; | |
262 | struct timer_list message_age_timer; | |
263 | struct kobject kobj; | |
264 | struct rcu_head rcu; | |
3982d3d2 | 265 | |
eb1d1641 | 266 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
90010b36 | 267 | struct bridge_mcast_own_query ip4_own_query; |
cc0fdd80 | 268 | #if IS_ENABLED(CONFIG_IPV6) |
90010b36 | 269 | struct bridge_mcast_own_query ip6_own_query; |
cc0fdd80 | 270 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
eb1d1641 | 271 | unsigned char multicast_router; |
1080ab95 | 272 | struct bridge_mcast_stats __percpu *mcast_stats; |
eb1d1641 | 273 | struct timer_list multicast_router_timer; |
eb1d1641 HX |
274 | struct hlist_head mglist; |
275 | struct hlist_node rlist; | |
276 | #endif | |
e0f43752 SA |
277 | |
278 | #ifdef CONFIG_SYSFS | |
279 | char sysfs_name[IFNAMSIZ]; | |
280 | #endif | |
91d2c34a HX |
281 | |
282 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
283 | struct netpoll *np; | |
284 | #endif | |
6bc506b4 IS |
285 | #ifdef CONFIG_NET_SWITCHDEV |
286 | int offload_fwd_mark; | |
287 | #endif | |
5af48b59 | 288 | u16 group_fwd_mask; |
2756f68c | 289 | u16 backup_redirected_cnt; |
de179966 VD |
290 | |
291 | struct bridge_stp_xstats stp_xstats; | |
1da177e4 LT |
292 | }; |
293 | ||
705e0dea TH |
294 | #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj) |
295 | ||
e028e4b8 | 296 | #define br_auto_port(p) ((p)->flags & BR_AUTO_MASK) |
f3a6ddf1 | 297 | #define br_promisc_port(p) ((p)->flags & BR_PROMISC) |
e028e4b8 | 298 | |
b5ed54e9 | 299 | static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) |
300 | { | |
716ec052 | 301 | return rcu_dereference(dev->rx_handler_data); |
b5ed54e9 | 302 | } |
303 | ||
1fb1754a | 304 | static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) |
b5ed54e9 | 305 | { |
35f861e3 | 306 | return netif_is_bridge_port(dev) ? |
ec1e5610 | 307 | rtnl_dereference(dev->rx_handler_data) : NULL; |
b5ed54e9 | 308 | } |
309 | ||
0baa10ff AS |
310 | static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) |
311 | { | |
35f861e3 | 312 | return netif_is_bridge_port(dev) ? |
0baa10ff AS |
313 | rcu_dereference_rtnl(dev->rx_handler_data) : NULL; |
314 | } | |
315 | ||
ae75767e NA |
316 | enum net_bridge_opts { |
317 | BROPT_VLAN_ENABLED, | |
318 | BROPT_VLAN_STATS_ENABLED, | |
8df3510f NA |
319 | BROPT_NF_CALL_IPTABLES, |
320 | BROPT_NF_CALL_IP6TABLES, | |
321 | BROPT_NF_CALL_ARPTABLES, | |
be3664a0 | 322 | BROPT_GROUP_ADDR_SET, |
13cefad2 | 323 | BROPT_MULTICAST_ENABLED, |
675779ad NA |
324 | BROPT_MULTICAST_QUERIER, |
325 | BROPT_MULTICAST_QUERY_USE_IFADDR, | |
326 | BROPT_MULTICAST_STATS_ENABLED, | |
327 | BROPT_HAS_IPV6_ADDR, | |
c69c2cd4 | 328 | BROPT_NEIGH_SUPPRESS_ENABLED, |
3341d917 | 329 | BROPT_MTU_SET_BY_USER, |
9163a0fc | 330 | BROPT_VLAN_STATS_PER_PORT, |
70e4272b | 331 | BROPT_NO_LL_LEARN, |
9c0ec2e7 | 332 | BROPT_VLAN_BRIDGE_BINDING, |
ae75767e NA |
333 | }; |
334 | ||
1f90c7f3 | 335 | struct net_bridge { |
1da177e4 | 336 | spinlock_t lock; |
1f90c7f3 | 337 | spinlock_t hash_lock; |
1da177e4 LT |
338 | struct list_head port_list; |
339 | struct net_device *dev; | |
8f84985f | 340 | struct pcpu_sw_netstats __percpu *stats; |
ae75767e | 341 | unsigned long options; |
1f90c7f3 NA |
342 | /* These fields are accessed on each packet */ |
343 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
1f90c7f3 NA |
344 | __be16 vlan_proto; |
345 | u16 default_pvid; | |
346 | struct net_bridge_vlan_group __rcu *vlgrp; | |
347 | #endif | |
348 | ||
eb793583 | 349 | struct rhashtable fdb_hash_tbl; |
34666d46 | 350 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
efb6de9b BT |
351 | union { |
352 | struct rtable fake_rtable; | |
353 | struct rt6_info fake_rt6_info; | |
354 | }; | |
4adf0af6 | 355 | #endif |
515853cc | 356 | u16 group_fwd_mask; |
f2808d22 | 357 | u16 group_fwd_mask_required; |
515853cc | 358 | |
1da177e4 LT |
359 | /* STP */ |
360 | bridge_id designated_root; | |
361 | bridge_id bridge_id; | |
1f90c7f3 NA |
362 | unsigned char topology_change; |
363 | unsigned char topology_change_detected; | |
364 | u16 root_port; | |
1da177e4 LT |
365 | unsigned long max_age; |
366 | unsigned long hello_time; | |
367 | unsigned long forward_delay; | |
1da177e4 | 368 | unsigned long ageing_time; |
34d8acd8 | 369 | unsigned long bridge_max_age; |
1da177e4 LT |
370 | unsigned long bridge_hello_time; |
371 | unsigned long bridge_forward_delay; | |
34d8acd8 | 372 | unsigned long bridge_ageing_time; |
35750b0b | 373 | u32 root_path_cost; |
1da177e4 | 374 | |
fda93d92 | 375 | u8 group_addr[ETH_ALEN]; |
9cde0708 SH |
376 | |
377 | enum { | |
378 | BR_NO_STP, /* no spanning tree */ | |
379 | BR_KERNEL_STP, /* old STP in kernel */ | |
380 | BR_USER_STP, /* new RSTP in userspace */ | |
381 | } stp_enabled; | |
382 | ||
eb1d1641 | 383 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
eb1d1641 | 384 | |
eb1d1641 HX |
385 | u32 hash_max; |
386 | ||
387 | u32 multicast_last_member_count; | |
eb1d1641 HX |
388 | u32 multicast_startup_query_count; |
389 | ||
5e923585 | 390 | u8 multicast_igmp_version; |
675779ad NA |
391 | u8 multicast_router; |
392 | #if IS_ENABLED(CONFIG_IPV6) | |
393 | u8 multicast_mld_version; | |
394 | #endif | |
35750b0b | 395 | spinlock_t multicast_lock; |
eb1d1641 HX |
396 | unsigned long multicast_last_member_interval; |
397 | unsigned long multicast_membership_interval; | |
398 | unsigned long multicast_querier_interval; | |
399 | unsigned long multicast_query_interval; | |
400 | unsigned long multicast_query_response_interval; | |
401 | unsigned long multicast_startup_query_interval; | |
402 | ||
19e3a9c9 NA |
403 | struct rhashtable mdb_hash_tbl; |
404 | ||
405 | struct hlist_head mdb_list; | |
eb1d1641 | 406 | struct hlist_head router_list; |
eb1d1641 HX |
407 | |
408 | struct timer_list multicast_router_timer; | |
90010b36 LL |
409 | struct bridge_mcast_other_query ip4_other_query; |
410 | struct bridge_mcast_own_query ip4_own_query; | |
dc4eb53a | 411 | struct bridge_mcast_querier ip4_querier; |
1080ab95 | 412 | struct bridge_mcast_stats __percpu *mcast_stats; |
cc0fdd80 | 413 | #if IS_ENABLED(CONFIG_IPV6) |
90010b36 LL |
414 | struct bridge_mcast_other_query ip6_other_query; |
415 | struct bridge_mcast_own_query ip6_own_query; | |
dc4eb53a | 416 | struct bridge_mcast_querier ip6_querier; |
cc0fdd80 | 417 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
eb1d1641 HX |
418 | #endif |
419 | ||
1da177e4 LT |
420 | struct timer_list hello_timer; |
421 | struct timer_list tcn_timer; | |
422 | struct timer_list topology_change_timer; | |
f7cdee8a | 423 | struct delayed_work gc_work; |
43b98c4a | 424 | struct kobject *ifobj; |
e028e4b8 | 425 | u32 auto_cnt; |
6bc506b4 IS |
426 | |
427 | #ifdef CONFIG_NET_SWITCHDEV | |
428 | int offload_fwd_mark; | |
429 | #endif | |
eb793583 | 430 | struct hlist_head fdb_list; |
4b8d7d4c HV |
431 | |
432 | #if IS_ENABLED(CONFIG_BRIDGE_MRP) | |
433 | struct list_head __rcu mrp_list; | |
434 | #endif | |
1da177e4 LT |
435 | }; |
436 | ||
68b7c895 HX |
437 | struct br_input_skb_cb { |
438 | struct net_device *brdev; | |
93fdd47e | 439 | |
3c171f49 | 440 | u16 frag_max_size; |
32dec5dd | 441 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
f12064d1 FW |
442 | u8 igmp; |
443 | u8 mrouters_only:1; | |
32dec5dd | 444 | #endif |
f12064d1 FW |
445 | u8 proxyarp_replied:1; |
446 | u8 src_port_isolated:1; | |
20adfa1a | 447 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
f12064d1 | 448 | u8 vlan_filtered:1; |
20adfa1a | 449 | #endif |
223fd0ad FW |
450 | #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE |
451 | u8 br_netfilter_broute:1; | |
452 | #endif | |
6bc506b4 IS |
453 | |
454 | #ifdef CONFIG_NET_SWITCHDEV | |
455 | int offload_fwd_mark; | |
456 | #endif | |
68b7c895 HX |
457 | }; |
458 | ||
459 | #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) | |
460 | ||
32dec5dd YH |
461 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
462 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) | |
463 | #else | |
464 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) | |
465 | #endif | |
466 | ||
28a16c97 | 467 | #define br_printk(level, br, format, args...) \ |
468 | printk(level "%s: " format, (br)->dev->name, ##args) | |
469 | ||
470 | #define br_err(__br, format, args...) \ | |
471 | br_printk(KERN_ERR, __br, format, ##args) | |
472 | #define br_warn(__br, format, args...) \ | |
473 | br_printk(KERN_WARNING, __br, format, ##args) | |
474 | #define br_notice(__br, format, args...) \ | |
475 | br_printk(KERN_NOTICE, __br, format, ##args) | |
476 | #define br_info(__br, format, args...) \ | |
477 | br_printk(KERN_INFO, __br, format, ##args) | |
478 | ||
479 | #define br_debug(br, format, args...) \ | |
480 | pr_debug("%s: " format, (br)->dev->name, ##args) | |
481 | ||
1da177e4 LT |
482 | /* called under bridge lock */ |
483 | static inline int br_is_root_bridge(const struct net_bridge *br) | |
484 | { | |
485 | return !memcmp(&br->bridge_id, &br->designated_root, 8); | |
486 | } | |
487 | ||
2594e906 NA |
488 | /* check if a VLAN entry is global */ |
489 | static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) | |
490 | { | |
491 | return v->flags & BRIDGE_VLAN_INFO_MASTER; | |
492 | } | |
493 | ||
494 | /* check if a VLAN entry is used by the bridge */ | |
495 | static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) | |
496 | { | |
497 | return v->flags & BRIDGE_VLAN_INFO_BRENTRY; | |
498 | } | |
499 | ||
6be144f6 | 500 | /* check if we should use the vlan entry, returns false if it's only context */ |
2594e906 NA |
501 | static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) |
502 | { | |
503 | if (br_vlan_is_master(v)) { | |
504 | if (br_vlan_is_brentry(v)) | |
505 | return true; | |
506 | else | |
507 | return false; | |
508 | } | |
509 | ||
510 | return true; | |
511 | } | |
512 | ||
5d1fcaf3 NA |
513 | static inline bool nbp_state_should_learn(const struct net_bridge_port *p) |
514 | { | |
515 | return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; | |
516 | } | |
517 | ||
8f4cc940 | 518 | static inline bool br_vlan_valid_id(u16 vid, struct netlink_ext_ack *extack) |
5a46facb | 519 | { |
8f4cc940 NA |
520 | bool ret = vid > 0 && vid < VLAN_VID_MASK; |
521 | ||
522 | if (!ret) | |
523 | NL_SET_ERR_MSG_MOD(extack, "Vlan id is invalid"); | |
524 | ||
525 | return ret; | |
5a46facb NA |
526 | } |
527 | ||
528 | static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, | |
8f4cc940 NA |
529 | const struct bridge_vlan_info *last, |
530 | struct netlink_ext_ack *extack) | |
5a46facb NA |
531 | { |
532 | /* pvid flag is not allowed in ranges */ | |
8f4cc940 NA |
533 | if (cur->flags & BRIDGE_VLAN_INFO_PVID) { |
534 | NL_SET_ERR_MSG_MOD(extack, "Pvid isn't allowed in a range"); | |
5a46facb | 535 | return false; |
8f4cc940 | 536 | } |
5a46facb NA |
537 | |
538 | /* when cur is the range end, check if: | |
539 | * - it has range start flag | |
540 | * - range ids are invalid (end is equal to or before start) | |
541 | */ | |
542 | if (last) { | |
8f4cc940 NA |
543 | if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { |
544 | NL_SET_ERR_MSG_MOD(extack, "Found a new vlan range start while processing one"); | |
5a46facb | 545 | return false; |
8f4cc940 NA |
546 | } else if (!(cur->flags & BRIDGE_VLAN_INFO_RANGE_END)) { |
547 | NL_SET_ERR_MSG_MOD(extack, "Vlan range end flag is missing"); | |
5a46facb | 548 | return false; |
8f4cc940 NA |
549 | } else if (cur->vid <= last->vid) { |
550 | NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); | |
551 | return false; | |
552 | } | |
553 | } | |
554 | ||
555 | /* check for required range flags */ | |
556 | if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | | |
557 | BRIDGE_VLAN_INFO_RANGE_END))) { | |
558 | NL_SET_ERR_MSG_MOD(extack, "Both vlan range flags are missing"); | |
559 | return false; | |
5a46facb NA |
560 | } |
561 | ||
562 | return true; | |
563 | } | |
564 | ||
f545923b NA |
565 | static inline int br_afspec_cmd_to_rtm(int cmd) |
566 | { | |
567 | switch (cmd) { | |
568 | case RTM_SETLINK: | |
569 | return RTM_NEWVLAN; | |
570 | case RTM_DELLINK: | |
571 | return RTM_DELVLAN; | |
572 | } | |
573 | ||
574 | return 0; | |
575 | } | |
576 | ||
ae75767e NA |
577 | static inline int br_opt_get(const struct net_bridge *br, |
578 | enum net_bridge_opts opt) | |
579 | { | |
580 | return test_bit(opt, &br->options); | |
581 | } | |
582 | ||
a428afe8 NA |
583 | int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, |
584 | struct netlink_ext_ack *extack); | |
585 | int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt); | |
586 | int br_boolopt_multi_toggle(struct net_bridge *br, | |
587 | struct br_boolopt_multi *bm, | |
588 | struct netlink_ext_ack *extack); | |
589 | void br_boolopt_multi_get(const struct net_bridge *br, | |
590 | struct br_boolopt_multi *bm); | |
ae75767e NA |
591 | void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on); |
592 | ||
1da177e4 | 593 | /* br_device.c */ |
348662a1 JP |
594 | void br_dev_setup(struct net_device *dev); |
595 | void br_dev_delete(struct net_device *dev, struct list_head *list); | |
596 | netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); | |
cfb478da | 597 | #ifdef CONFIG_NET_POLL_CONTROLLER |
91d2c34a HX |
598 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
599 | struct sk_buff *skb) | |
600 | { | |
f78ed220 | 601 | netpoll_send_skb(p->np, skb); |
91d2c34a HX |
602 | } |
603 | ||
a8779ec1 | 604 | int br_netpoll_enable(struct net_bridge_port *p); |
348662a1 | 605 | void br_netpoll_disable(struct net_bridge_port *p); |
cfb478da | 606 | #else |
9f70b0fc | 607 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
91d2c34a HX |
608 | struct sk_buff *skb) |
609 | { | |
610 | } | |
cfb478da | 611 | |
a8779ec1 | 612 | static inline int br_netpoll_enable(struct net_bridge_port *p) |
91d2c34a HX |
613 | { |
614 | return 0; | |
615 | } | |
616 | ||
617 | static inline void br_netpoll_disable(struct net_bridge_port *p) | |
618 | { | |
619 | } | |
cfb478da | 620 | #endif |
1da177e4 LT |
621 | |
622 | /* br_fdb.c */ | |
348662a1 JP |
623 | int br_fdb_init(void); |
624 | void br_fdb_fini(void); | |
eb793583 NA |
625 | int br_fdb_hash_init(struct net_bridge *br); |
626 | void br_fdb_hash_fini(struct net_bridge *br); | |
348662a1 | 627 | void br_fdb_flush(struct net_bridge *br); |
424bb9c9 TM |
628 | void br_fdb_find_delete_local(struct net_bridge *br, |
629 | const struct net_bridge_port *p, | |
630 | const unsigned char *addr, u16 vid); | |
348662a1 JP |
631 | void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); |
632 | void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); | |
f7cdee8a | 633 | void br_fdb_cleanup(struct work_struct *work); |
348662a1 | 634 | void br_fdb_delete_by_port(struct net_bridge *br, |
1ea2d020 | 635 | const struct net_bridge_port *p, u16 vid, int do_all); |
bfd0aeac NA |
636 | struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, |
637 | const unsigned char *addr, | |
638 | __u16 vid); | |
348662a1 JP |
639 | int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); |
640 | int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, | |
641 | unsigned long off); | |
642 | int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, | |
643 | const unsigned char *addr, u16 vid); | |
644 | void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, | |
be0c5677 | 645 | const unsigned char *addr, u16 vid, unsigned long flags); |
348662a1 JP |
646 | |
647 | int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], | |
f6f6424b | 648 | struct net_device *dev, const unsigned char *addr, u16 vid); |
348662a1 | 649 | int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, |
87b0984e PM |
650 | const unsigned char *addr, u16 vid, u16 nlh_flags, |
651 | struct netlink_ext_ack *extack); | |
348662a1 | 652 | int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, |
d297653d | 653 | struct net_device *dev, struct net_device *fdev, int *idx); |
47674562 RP |
654 | int br_fdb_get(struct sk_buff *skb, struct nlattr *tb[], struct net_device *dev, |
655 | const unsigned char *addr, u16 vid, u32 portid, u32 seq, | |
656 | struct netlink_ext_ack *extack); | |
8db24af7 VY |
657 | int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); |
658 | void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); | |
3aeb6617 | 659 | int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, |
161d82de PM |
660 | const unsigned char *addr, u16 vid, |
661 | bool swdev_notify); | |
3aeb6617 | 662 | int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, |
161d82de PM |
663 | const unsigned char *addr, u16 vid, |
664 | bool swdev_notify); | |
9fe8bcec | 665 | void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, |
e9ba0fbc | 666 | const unsigned char *addr, u16 vid, bool offloaded); |
1da177e4 LT |
667 | |
668 | /* br_forward.c */ | |
8addd5e7 NA |
669 | enum br_pkt_type { |
670 | BR_PKT_UNICAST, | |
671 | BR_PKT_MULTICAST, | |
672 | BR_PKT_BROADCAST | |
673 | }; | |
0c4b51f0 | 674 | int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); |
b35c5f63 | 675 | void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, |
37b090e6 | 676 | bool local_rcv, bool local_orig); |
0c4b51f0 | 677 | int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); |
37b090e6 | 678 | void br_flood(struct net_bridge *br, struct sk_buff *skb, |
8addd5e7 | 679 | enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); |
1da177e4 | 680 | |
7d850abd NA |
681 | /* return true if both source port and dest port are isolated */ |
682 | static inline bool br_skb_isolated(const struct net_bridge_port *to, | |
683 | const struct sk_buff *skb) | |
684 | { | |
685 | return BR_INPUT_SKB_CB(skb)->src_port_isolated && | |
686 | (to->flags & BR_ISOLATED); | |
687 | } | |
688 | ||
1da177e4 | 689 | /* br_if.c */ |
faa1cd82 | 690 | void br_port_carrier_check(struct net_bridge_port *p, bool *notified); |
348662a1 JP |
691 | int br_add_bridge(struct net *net, const char *name); |
692 | int br_del_bridge(struct net *net, const char *name); | |
ca752be0 DA |
693 | int br_add_if(struct net_bridge *br, struct net_device *dev, |
694 | struct netlink_ext_ack *extack); | |
348662a1 | 695 | int br_del_if(struct net_bridge *br, struct net_device *dev); |
804b854d | 696 | void br_mtu_auto_adjust(struct net_bridge *br); |
348662a1 JP |
697 | netdev_features_t br_features_recompute(struct net_bridge *br, |
698 | netdev_features_t features); | |
e028e4b8 | 699 | void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); |
2796d0c6 | 700 | void br_manage_promisc(struct net_bridge *br); |
2756f68c | 701 | int nbp_backup_change(struct net_bridge_port *p, struct net_device *backup_dev); |
1da177e4 LT |
702 | |
703 | /* br_input.c */ | |
0c4b51f0 | 704 | int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); |
9eb8eff0 | 705 | rx_handler_func_t *br_get_rx_handler(const struct net_device *dev); |
1da177e4 | 706 | |
859828c0 JP |
707 | static inline bool br_rx_handler_check_rcu(const struct net_device *dev) |
708 | { | |
9eb8eff0 | 709 | return rcu_dereference(dev->rx_handler) == br_get_rx_handler(dev); |
859828c0 JP |
710 | } |
711 | ||
4d4fd361 PM |
712 | static inline bool br_rx_handler_check_rtnl(const struct net_device *dev) |
713 | { | |
9eb8eff0 | 714 | return rcu_dereference_rtnl(dev->rx_handler) == br_get_rx_handler(dev); |
4d4fd361 PM |
715 | } |
716 | ||
859828c0 JP |
717 | static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) |
718 | { | |
719 | return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; | |
720 | } | |
721 | ||
4d4fd361 PM |
722 | static inline struct net_bridge_port * |
723 | br_port_get_check_rtnl(const struct net_device *dev) | |
724 | { | |
725 | return br_rx_handler_check_rtnl(dev) ? br_port_get_rtnl_rcu(dev) : NULL; | |
726 | } | |
727 | ||
1da177e4 | 728 | /* br_ioctl.c */ |
348662a1 JP |
729 | int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); |
730 | int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, | |
731 | void __user *arg); | |
1da177e4 | 732 | |
eb1d1641 HX |
733 | /* br_multicast.c */ |
734 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING | |
348662a1 | 735 | int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, |
394efd19 | 736 | struct sk_buff *skb, u16 vid); |
348662a1 JP |
737 | struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, |
738 | struct sk_buff *skb, u16 vid); | |
1080ab95 | 739 | int br_multicast_add_port(struct net_bridge_port *port); |
348662a1 JP |
740 | void br_multicast_del_port(struct net_bridge_port *port); |
741 | void br_multicast_enable_port(struct net_bridge_port *port); | |
742 | void br_multicast_disable_port(struct net_bridge_port *port); | |
743 | void br_multicast_init(struct net_bridge *br); | |
744 | void br_multicast_open(struct net_bridge *br); | |
745 | void br_multicast_stop(struct net_bridge *br); | |
e10177ab | 746 | void br_multicast_dev_del(struct net_bridge *br); |
37b090e6 NA |
747 | void br_multicast_flood(struct net_bridge_mdb_entry *mdst, |
748 | struct sk_buff *skb, bool local_rcv, bool local_orig); | |
348662a1 JP |
749 | int br_multicast_set_router(struct net_bridge *br, unsigned long val); |
750 | int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); | |
751 | int br_multicast_toggle(struct net_bridge *br, unsigned long val); | |
752 | int br_multicast_set_querier(struct net_bridge *br, unsigned long val); | |
753 | int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); | |
5e923585 | 754 | int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); |
aa2ae3e7 NA |
755 | #if IS_ENABLED(CONFIG_IPV6) |
756 | int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); | |
757 | #endif | |
348662a1 | 758 | struct net_bridge_mdb_entry * |
19e3a9c9 | 759 | br_mdb_ip_get(struct net_bridge *br, struct br_ip *dst); |
348662a1 | 760 | struct net_bridge_mdb_entry * |
19e3a9c9 | 761 | br_multicast_new_group(struct net_bridge *br, struct br_ip *group); |
348662a1 JP |
762 | struct net_bridge_port_group * |
763 | br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, | |
764 | struct net_bridge_port_group __rcu *next, | |
6db6f0ea | 765 | unsigned char flags, const unsigned char *src); |
19e3a9c9 NA |
766 | int br_mdb_hash_init(struct net_bridge *br); |
767 | void br_mdb_hash_fini(struct net_bridge *br); | |
45ebcce5 ER |
768 | void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, |
769 | struct br_ip *group, int type, u8 flags); | |
949f1e39 SA |
770 | void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, |
771 | int type); | |
1080ab95 | 772 | void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, |
a65056ec | 773 | const struct sk_buff *skb, u8 type, u8 dir); |
1080ab95 | 774 | int br_multicast_init_stats(struct net_bridge *br); |
b6fe0440 | 775 | void br_multicast_uninit_stats(struct net_bridge *br); |
1080ab95 NA |
776 | void br_multicast_get_stats(const struct net_bridge *br, |
777 | const struct net_bridge_port *p, | |
778 | struct br_mcast_stats *dest); | |
19e3a9c9 NA |
779 | void br_mdb_init(void); |
780 | void br_mdb_uninit(void); | |
1bc844ee NA |
781 | void br_multicast_host_join(struct net_bridge_mdb_entry *mp, bool notify); |
782 | void br_multicast_host_leave(struct net_bridge_mdb_entry *mp, bool notify); | |
85b35269 | 783 | |
cfd56754 CW |
784 | #define mlock_dereference(X, br) \ |
785 | rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) | |
786 | ||
85b35269 SS |
787 | static inline bool br_multicast_is_router(struct net_bridge *br) |
788 | { | |
789 | return br->multicast_router == 2 || | |
790 | (br->multicast_router == 1 && | |
791 | timer_pending(&br->multicast_router_timer)); | |
792 | } | |
b00589af | 793 | |
cc0fdd80 LL |
794 | static inline bool |
795 | __br_multicast_querier_exists(struct net_bridge *br, | |
0888d5f3 | 796 | struct bridge_mcast_other_query *querier, |
797 | const bool is_ipv6) | |
b00589af | 798 | { |
0888d5f3 | 799 | bool own_querier_enabled; |
800 | ||
675779ad NA |
801 | if (br_opt_get(br, BROPT_MULTICAST_QUERIER)) { |
802 | if (is_ipv6 && !br_opt_get(br, BROPT_HAS_IPV6_ADDR)) | |
0888d5f3 | 803 | own_querier_enabled = false; |
804 | else | |
805 | own_querier_enabled = true; | |
806 | } else { | |
807 | own_querier_enabled = false; | |
808 | } | |
809 | ||
cc0fdd80 | 810 | return time_is_before_jiffies(querier->delay_time) && |
0888d5f3 | 811 | (own_querier_enabled || timer_pending(&querier->timer)); |
cc0fdd80 LL |
812 | } |
813 | ||
814 | static inline bool br_multicast_querier_exists(struct net_bridge *br, | |
815 | struct ethhdr *eth) | |
816 | { | |
817 | switch (eth->h_proto) { | |
818 | case (htons(ETH_P_IP)): | |
0888d5f3 | 819 | return __br_multicast_querier_exists(br, |
820 | &br->ip4_other_query, false); | |
cc0fdd80 LL |
821 | #if IS_ENABLED(CONFIG_IPV6) |
822 | case (htons(ETH_P_IPV6)): | |
0888d5f3 | 823 | return __br_multicast_querier_exists(br, |
824 | &br->ip6_other_query, true); | |
cc0fdd80 LL |
825 | #endif |
826 | default: | |
827 | return false; | |
828 | } | |
b00589af | 829 | } |
1080ab95 NA |
830 | |
831 | static inline int br_multicast_igmp_type(const struct sk_buff *skb) | |
832 | { | |
833 | return BR_INPUT_SKB_CB(skb)->igmp; | |
834 | } | |
eb1d1641 HX |
835 | #else |
836 | static inline int br_multicast_rcv(struct net_bridge *br, | |
837 | struct net_bridge_port *port, | |
06499098 VY |
838 | struct sk_buff *skb, |
839 | u16 vid) | |
eb1d1641 HX |
840 | { |
841 | return 0; | |
842 | } | |
843 | ||
844 | static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, | |
fbca58a2 | 845 | struct sk_buff *skb, u16 vid) |
eb1d1641 HX |
846 | { |
847 | return NULL; | |
848 | } | |
849 | ||
1080ab95 | 850 | static inline int br_multicast_add_port(struct net_bridge_port *port) |
eb1d1641 | 851 | { |
1080ab95 | 852 | return 0; |
eb1d1641 HX |
853 | } |
854 | ||
855 | static inline void br_multicast_del_port(struct net_bridge_port *port) | |
856 | { | |
857 | } | |
858 | ||
859 | static inline void br_multicast_enable_port(struct net_bridge_port *port) | |
860 | { | |
861 | } | |
862 | ||
863 | static inline void br_multicast_disable_port(struct net_bridge_port *port) | |
864 | { | |
865 | } | |
866 | ||
867 | static inline void br_multicast_init(struct net_bridge *br) | |
868 | { | |
869 | } | |
870 | ||
871 | static inline void br_multicast_open(struct net_bridge *br) | |
872 | { | |
873 | } | |
874 | ||
875 | static inline void br_multicast_stop(struct net_bridge *br) | |
876 | { | |
877 | } | |
5cb5e947 | 878 | |
a7ce45a7 NA |
879 | static inline void br_multicast_dev_del(struct net_bridge *br) |
880 | { | |
881 | } | |
882 | ||
37b090e6 NA |
883 | static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, |
884 | struct sk_buff *skb, | |
885 | bool local_rcv, bool local_orig) | |
5cb5e947 HX |
886 | { |
887 | } | |
888 | ||
eb1d1641 HX |
889 | static inline bool br_multicast_is_router(struct net_bridge *br) |
890 | { | |
03aaa9e2 | 891 | return false; |
eb1d1641 | 892 | } |
37b090e6 | 893 | |
cc0fdd80 LL |
894 | static inline bool br_multicast_querier_exists(struct net_bridge *br, |
895 | struct ethhdr *eth) | |
b00589af LL |
896 | { |
897 | return false; | |
898 | } | |
37b090e6 | 899 | |
fdb184d1 RR |
900 | static inline void br_mdb_init(void) |
901 | { | |
902 | } | |
37b090e6 | 903 | |
fdb184d1 RR |
904 | static inline void br_mdb_uninit(void) |
905 | { | |
906 | } | |
1080ab95 | 907 | |
19e3a9c9 NA |
908 | static inline int br_mdb_hash_init(struct net_bridge *br) |
909 | { | |
910 | return 0; | |
911 | } | |
912 | ||
913 | static inline void br_mdb_hash_fini(struct net_bridge *br) | |
914 | { | |
915 | } | |
916 | ||
1080ab95 NA |
917 | static inline void br_multicast_count(struct net_bridge *br, |
918 | const struct net_bridge_port *p, | |
a65056ec NA |
919 | const struct sk_buff *skb, |
920 | u8 type, u8 dir) | |
1080ab95 NA |
921 | { |
922 | } | |
923 | ||
924 | static inline int br_multicast_init_stats(struct net_bridge *br) | |
925 | { | |
926 | return 0; | |
927 | } | |
928 | ||
b6fe0440 IS |
929 | static inline void br_multicast_uninit_stats(struct net_bridge *br) |
930 | { | |
931 | } | |
932 | ||
1080ab95 NA |
933 | static inline int br_multicast_igmp_type(const struct sk_buff *skb) |
934 | { | |
935 | return 0; | |
936 | } | |
85b35269 | 937 | #endif |
eb1d1641 | 938 | |
243a2e63 VY |
939 | /* br_vlan.c */ |
940 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
77751ee8 NA |
941 | bool br_allowed_ingress(const struct net_bridge *br, |
942 | struct net_bridge_vlan_group *vg, struct sk_buff *skb, | |
a580c76d | 943 | u16 *vid, u8 *state); |
77751ee8 | 944 | bool br_allowed_egress(struct net_bridge_vlan_group *vg, |
348662a1 | 945 | const struct sk_buff *skb); |
e0d7968a | 946 | bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); |
348662a1 | 947 | struct sk_buff *br_handle_vlan(struct net_bridge *br, |
11538d03 | 948 | const struct net_bridge_port *port, |
2594e906 | 949 | struct net_bridge_vlan_group *vg, |
348662a1 | 950 | struct sk_buff *skb); |
f418af63 | 951 | int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, |
169327d5 | 952 | bool *changed, struct netlink_ext_ack *extack); |
348662a1 JP |
953 | int br_vlan_delete(struct net_bridge *br, u16 vid); |
954 | void br_vlan_flush(struct net_bridge *br); | |
2594e906 | 955 | struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); |
204177f3 | 956 | void br_recalculate_fwd_mask(struct net_bridge *br); |
a7854037 | 957 | int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
348662a1 | 958 | int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); |
d2d427b3 | 959 | int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); |
204177f3 | 960 | int br_vlan_set_proto(struct net_bridge *br, unsigned long val); |
6dada9b1 | 961 | int br_vlan_set_stats(struct net_bridge *br, unsigned long val); |
9163a0fc | 962 | int br_vlan_set_stats_per_port(struct net_bridge *br, unsigned long val); |
5be5a2df | 963 | int br_vlan_init(struct net_bridge *br); |
96a20d9d | 964 | int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); |
169327d5 PM |
965 | int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid, |
966 | struct netlink_ext_ack *extack); | |
f418af63 | 967 | int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, |
169327d5 | 968 | bool *changed, struct netlink_ext_ack *extack); |
348662a1 JP |
969 | int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); |
970 | void nbp_vlan_flush(struct net_bridge_port *port); | |
169327d5 | 971 | int nbp_vlan_init(struct net_bridge_port *port, struct netlink_ext_ack *extack); |
2594e906 | 972 | int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); |
a60c0903 NA |
973 | void br_vlan_get_stats(const struct net_bridge_vlan *v, |
974 | struct br_vlan_stats *stats); | |
9c0ec2e7 | 975 | void br_vlan_port_event(struct net_bridge_port *p, unsigned long event); |
091adf9b NA |
976 | int br_vlan_bridge_event(struct net_device *dev, unsigned long event, |
977 | void *ptr); | |
8dcea187 NA |
978 | void br_vlan_rtnl_init(void); |
979 | void br_vlan_rtnl_uninit(void); | |
cf5bddb9 NA |
980 | void br_vlan_notify(const struct net_bridge *br, |
981 | const struct net_bridge_port *p, | |
982 | u16 vid, u16 vid_range, | |
983 | int cmd); | |
a5d29ae2 NA |
984 | bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, |
985 | const struct net_bridge_vlan *range_end); | |
a37b85c9 | 986 | |
2594e906 NA |
987 | static inline struct net_bridge_vlan_group *br_vlan_group( |
988 | const struct net_bridge *br) | |
a37b85c9 | 989 | { |
907b1e6e | 990 | return rtnl_dereference(br->vlgrp); |
a37b85c9 VY |
991 | } |
992 | ||
2594e906 NA |
993 | static inline struct net_bridge_vlan_group *nbp_vlan_group( |
994 | const struct net_bridge_port *p) | |
a37b85c9 | 995 | { |
907b1e6e NA |
996 | return rtnl_dereference(p->vlgrp); |
997 | } | |
998 | ||
999 | static inline struct net_bridge_vlan_group *br_vlan_group_rcu( | |
1000 | const struct net_bridge *br) | |
1001 | { | |
1002 | return rcu_dereference(br->vlgrp); | |
1003 | } | |
1004 | ||
1005 | static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( | |
1006 | const struct net_bridge_port *p) | |
1007 | { | |
1008 | return rcu_dereference(p->vlgrp); | |
a37b85c9 VY |
1009 | } |
1010 | ||
1011 | /* Since bridge now depends on 8021Q module, but the time bridge sees the | |
1012 | * skb, the vlan tag will always be present if the frame was tagged. | |
1013 | */ | |
1014 | static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) | |
1015 | { | |
1016 | int err = 0; | |
1017 | ||
2594e906 | 1018 | if (skb_vlan_tag_present(skb)) { |
5978f8a9 | 1019 | *vid = skb_vlan_tag_get_id(skb); |
2594e906 | 1020 | } else { |
a37b85c9 VY |
1021 | *vid = 0; |
1022 | err = -EINVAL; | |
1023 | } | |
1024 | ||
1025 | return err; | |
1026 | } | |
78851988 | 1027 | |
77751ee8 | 1028 | static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) |
2594e906 | 1029 | { |
77751ee8 | 1030 | if (!vg) |
2594e906 NA |
1031 | return 0; |
1032 | ||
1033 | smp_rmb(); | |
77751ee8 | 1034 | return vg->pvid; |
78851988 VY |
1035 | } |
1036 | ||
8dcea187 NA |
1037 | static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid) |
1038 | { | |
1039 | return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags; | |
1040 | } | |
243a2e63 | 1041 | #else |
77751ee8 NA |
1042 | static inline bool br_allowed_ingress(const struct net_bridge *br, |
1043 | struct net_bridge_vlan_group *vg, | |
78851988 | 1044 | struct sk_buff *skb, |
a580c76d | 1045 | u16 *vid, u8 *state) |
a37b85c9 VY |
1046 | { |
1047 | return true; | |
1048 | } | |
1049 | ||
2594e906 | 1050 | static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, |
85f46c6b VY |
1051 | const struct sk_buff *skb) |
1052 | { | |
1053 | return true; | |
1054 | } | |
1055 | ||
e0d7968a TM |
1056 | static inline bool br_should_learn(struct net_bridge_port *p, |
1057 | struct sk_buff *skb, u16 *vid) | |
1058 | { | |
1059 | return true; | |
1060 | } | |
1061 | ||
78851988 | 1062 | static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, |
11538d03 | 1063 | const struct net_bridge_port *port, |
2594e906 | 1064 | struct net_bridge_vlan_group *vg, |
78851988 VY |
1065 | struct sk_buff *skb) |
1066 | { | |
1067 | return skb; | |
1068 | } | |
1069 | ||
f418af63 | 1070 | static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, |
169327d5 | 1071 | bool *changed, struct netlink_ext_ack *extack) |
243a2e63 | 1072 | { |
f418af63 | 1073 | *changed = false; |
243a2e63 VY |
1074 | return -EOPNOTSUPP; |
1075 | } | |
1076 | ||
1077 | static inline int br_vlan_delete(struct net_bridge *br, u16 vid) | |
1078 | { | |
1079 | return -EOPNOTSUPP; | |
1080 | } | |
1081 | ||
1082 | static inline void br_vlan_flush(struct net_bridge *br) | |
1083 | { | |
1084 | } | |
1085 | ||
204177f3 TM |
1086 | static inline void br_recalculate_fwd_mask(struct net_bridge *br) |
1087 | { | |
1088 | } | |
1089 | ||
5be5a2df | 1090 | static inline int br_vlan_init(struct net_bridge *br) |
8580e211 | 1091 | { |
5be5a2df | 1092 | return 0; |
8580e211 TM |
1093 | } |
1094 | ||
f418af63 | 1095 | static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, |
169327d5 | 1096 | bool *changed, struct netlink_ext_ack *extack) |
243a2e63 | 1097 | { |
f418af63 | 1098 | *changed = false; |
243a2e63 VY |
1099 | return -EOPNOTSUPP; |
1100 | } | |
1101 | ||
1102 | static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) | |
1103 | { | |
1104 | return -EOPNOTSUPP; | |
1105 | } | |
1106 | ||
1107 | static inline void nbp_vlan_flush(struct net_bridge_port *port) | |
1108 | { | |
1109 | } | |
1110 | ||
2594e906 NA |
1111 | static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, |
1112 | u16 vid) | |
a37b85c9 VY |
1113 | { |
1114 | return NULL; | |
1115 | } | |
1116 | ||
169327d5 PM |
1117 | static inline int nbp_vlan_init(struct net_bridge_port *port, |
1118 | struct netlink_ext_ack *extack) | |
bc9a25d2 | 1119 | { |
2594e906 | 1120 | return 0; |
bc9a25d2 VY |
1121 | } |
1122 | ||
2594e906 | 1123 | static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) |
5be5a2df VY |
1124 | { |
1125 | return 0; | |
1126 | } | |
1127 | ||
77751ee8 | 1128 | static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) |
78851988 | 1129 | { |
3df6bf45 | 1130 | return 0; |
78851988 | 1131 | } |
2796d0c6 | 1132 | |
a7854037 NA |
1133 | static inline int __br_vlan_filter_toggle(struct net_bridge *br, |
1134 | unsigned long val) | |
1135 | { | |
1136 | return -EOPNOTSUPP; | |
1137 | } | |
2594e906 NA |
1138 | |
1139 | static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, | |
1140 | u32 filter_mask) | |
1141 | { | |
1142 | return 0; | |
1143 | } | |
1144 | ||
1145 | static inline struct net_bridge_vlan_group *br_vlan_group( | |
1146 | const struct net_bridge *br) | |
1147 | { | |
1148 | return NULL; | |
1149 | } | |
1150 | ||
1151 | static inline struct net_bridge_vlan_group *nbp_vlan_group( | |
1152 | const struct net_bridge_port *p) | |
1153 | { | |
1154 | return NULL; | |
1155 | } | |
907b1e6e NA |
1156 | |
1157 | static inline struct net_bridge_vlan_group *br_vlan_group_rcu( | |
1158 | const struct net_bridge *br) | |
1159 | { | |
1160 | return NULL; | |
1161 | } | |
1162 | ||
1163 | static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( | |
1164 | const struct net_bridge_port *p) | |
1165 | { | |
1166 | return NULL; | |
1167 | } | |
a60c0903 NA |
1168 | |
1169 | static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, | |
1170 | struct br_vlan_stats *stats) | |
1171 | { | |
1172 | } | |
9c0ec2e7 MM |
1173 | |
1174 | static inline void br_vlan_port_event(struct net_bridge_port *p, | |
1175 | unsigned long event) | |
1176 | { | |
1177 | } | |
1178 | ||
091adf9b NA |
1179 | static inline int br_vlan_bridge_event(struct net_device *dev, |
1180 | unsigned long event, void *ptr) | |
9c0ec2e7 | 1181 | { |
091adf9b | 1182 | return 0; |
9c0ec2e7 | 1183 | } |
8dcea187 NA |
1184 | |
1185 | static inline void br_vlan_rtnl_init(void) | |
1186 | { | |
1187 | } | |
1188 | ||
1189 | static inline void br_vlan_rtnl_uninit(void) | |
1190 | { | |
1191 | } | |
cf5bddb9 NA |
1192 | |
1193 | static inline void br_vlan_notify(const struct net_bridge *br, | |
1194 | const struct net_bridge_port *p, | |
1195 | u16 vid, u16 vid_range, | |
1196 | int cmd) | |
1197 | { | |
1198 | } | |
243a2e63 VY |
1199 | #endif |
1200 | ||
7a53e718 NA |
1201 | /* br_vlan_options.c */ |
1202 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
99f7c5e0 NA |
1203 | bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, |
1204 | const struct net_bridge_vlan *range_end); | |
7a53e718 NA |
1205 | bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v); |
1206 | size_t br_vlan_opts_nl_size(void); | |
a5d29ae2 NA |
1207 | int br_vlan_process_options(const struct net_bridge *br, |
1208 | const struct net_bridge_port *p, | |
1209 | struct net_bridge_vlan *range_start, | |
1210 | struct net_bridge_vlan *range_end, | |
1211 | struct nlattr **tb, | |
1212 | struct netlink_ext_ack *extack); | |
a580c76d NA |
1213 | |
1214 | /* vlan state manipulation helpers using *_ONCE to annotate lock-free access */ | |
1215 | static inline u8 br_vlan_get_state(const struct net_bridge_vlan *v) | |
1216 | { | |
1217 | return READ_ONCE(v->state); | |
1218 | } | |
1219 | ||
1220 | static inline void br_vlan_set_state(struct net_bridge_vlan *v, u8 state) | |
1221 | { | |
1222 | WRITE_ONCE(v->state, state); | |
1223 | } | |
1224 | ||
1225 | static inline u8 br_vlan_get_pvid_state(const struct net_bridge_vlan_group *vg) | |
1226 | { | |
1227 | return READ_ONCE(vg->pvid_state); | |
1228 | } | |
1229 | ||
1230 | static inline void br_vlan_set_pvid_state(struct net_bridge_vlan_group *vg, | |
1231 | u8 state) | |
1232 | { | |
1233 | WRITE_ONCE(vg->pvid_state, state); | |
1234 | } | |
1235 | ||
1236 | /* learn_allow is true at ingress and false at egress */ | |
1237 | static inline bool br_vlan_state_allowed(u8 state, bool learn_allow) | |
1238 | { | |
1239 | switch (state) { | |
1240 | case BR_STATE_LEARNING: | |
1241 | return learn_allow; | |
1242 | case BR_STATE_FORWARDING: | |
1243 | return true; | |
1244 | default: | |
1245 | return false; | |
1246 | } | |
1247 | } | |
7a53e718 NA |
1248 | #endif |
1249 | ||
1a4ba64d PNA |
1250 | struct nf_br_ops { |
1251 | int (*br_dev_xmit_hook)(struct sk_buff *skb); | |
1252 | }; | |
1253 | extern const struct nf_br_ops __rcu *nf_br_ops; | |
1254 | ||
1da177e4 | 1255 | /* br_netfilter.c */ |
34666d46 PNA |
1256 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
1257 | int br_nf_core_init(void); | |
1258 | void br_nf_core_fini(void); | |
348662a1 | 1259 | void br_netfilter_rtable_init(struct net_bridge *); |
c0909713 | 1260 | #else |
34666d46 PNA |
1261 | static inline int br_nf_core_init(void) { return 0; } |
1262 | static inline void br_nf_core_fini(void) {} | |
4adf0af6 | 1263 | #define br_netfilter_rtable_init(x) |
c0909713 | 1264 | #endif |
1da177e4 LT |
1265 | |
1266 | /* br_stp.c */ | |
775dd692 | 1267 | void br_set_state(struct net_bridge_port *p, unsigned int state); |
348662a1 JP |
1268 | struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); |
1269 | void br_init_port(struct net_bridge_port *p); | |
1270 | void br_become_designated_port(struct net_bridge_port *p); | |
1da177e4 | 1271 | |
348662a1 JP |
1272 | void __br_set_forward_delay(struct net_bridge *br, unsigned long t); |
1273 | int br_set_forward_delay(struct net_bridge *br, unsigned long x); | |
1274 | int br_set_hello_time(struct net_bridge *br, unsigned long x); | |
1275 | int br_set_max_age(struct net_bridge *br, unsigned long x); | |
82dd4332 | 1276 | int __set_ageing_time(struct net_device *dev, unsigned long t); |
9e0b27fe | 1277 | int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); |
14f98f25 | 1278 | |
1279 | ||
1da177e4 | 1280 | /* br_stp_if.c */ |
348662a1 JP |
1281 | void br_stp_enable_bridge(struct net_bridge *br); |
1282 | void br_stp_disable_bridge(struct net_bridge *br); | |
419dba8a HV |
1283 | int br_stp_set_enabled(struct net_bridge *br, unsigned long val, |
1284 | struct netlink_ext_ack *extack); | |
348662a1 JP |
1285 | void br_stp_enable_port(struct net_bridge_port *p); |
1286 | void br_stp_disable_port(struct net_bridge_port *p); | |
1287 | bool br_stp_recalculate_bridge_id(struct net_bridge *br); | |
1288 | void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); | |
1289 | void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); | |
1290 | int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); | |
1291 | int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); | |
1292 | ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); | |
1da177e4 LT |
1293 | |
1294 | /* br_stp_bpdu.c */ | |
7c85fbf0 | 1295 | struct stp_proto; |
348662a1 JP |
1296 | void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, |
1297 | struct net_device *dev); | |
1da177e4 LT |
1298 | |
1299 | /* br_stp_timer.c */ | |
348662a1 JP |
1300 | void br_stp_timer_init(struct net_bridge *br); |
1301 | void br_stp_port_timer_init(struct net_bridge_port *p); | |
1302 | unsigned long br_timer_value(const struct timer_list *timer); | |
1da177e4 LT |
1303 | |
1304 | /* br.c */ | |
e6373c4c | 1305 | #if IS_ENABLED(CONFIG_ATM_LANE) |
da678292 MM |
1306 | extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); |
1307 | #endif | |
1da177e4 | 1308 | |
65369933 HV |
1309 | /* br_mrp.c */ |
1310 | #if IS_ENABLED(CONFIG_BRIDGE_MRP) | |
1311 | int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, | |
1312 | struct nlattr *attr, int cmd, struct netlink_ext_ack *extack); | |
1313 | int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb); | |
1314 | bool br_mrp_enabled(struct net_bridge *br); | |
1315 | void br_mrp_port_del(struct net_bridge *br, struct net_bridge_port *p); | |
1316 | #else | |
1317 | static inline int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, | |
1318 | struct nlattr *attr, int cmd, | |
1319 | struct netlink_ext_ack *extack) | |
1320 | { | |
1321 | return -EOPNOTSUPP; | |
1322 | } | |
1323 | ||
1324 | static inline int br_mrp_process(struct net_bridge_port *p, struct sk_buff *skb) | |
1325 | { | |
1326 | return 0; | |
1327 | } | |
1328 | ||
1329 | static inline bool br_mrp_enabled(struct net_bridge *br) | |
1330 | { | |
8741e184 | 1331 | return false; |
65369933 HV |
1332 | } |
1333 | ||
1334 | static inline void br_mrp_port_del(struct net_bridge *br, | |
1335 | struct net_bridge_port *p) | |
1336 | { | |
1337 | } | |
1338 | #endif | |
1339 | ||
11dc1f36 | 1340 | /* br_netlink.c */ |
149ddd83 | 1341 | extern struct rtnl_link_ops br_link_ops; |
348662a1 JP |
1342 | int br_netlink_init(void); |
1343 | void br_netlink_fini(void); | |
92899063 NA |
1344 | void br_ifinfo_notify(int event, const struct net_bridge *br, |
1345 | const struct net_bridge_port *port); | |
2fd527b7 PM |
1346 | int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags, |
1347 | struct netlink_ext_ack *extack); | |
add511b3 | 1348 | int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); |
348662a1 | 1349 | int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, |
46c264da | 1350 | u32 filter_mask, int nlflags); |
f26b2965 NA |
1351 | int br_process_vlan_info(struct net_bridge *br, |
1352 | struct net_bridge_port *p, int cmd, | |
1353 | struct bridge_vlan_info *vinfo_curr, | |
1354 | struct bridge_vlan_info **vinfo_last, | |
1355 | bool *changed, | |
1356 | struct netlink_ext_ack *extack); | |
11dc1f36 | 1357 | |
1da177e4 LT |
1358 | #ifdef CONFIG_SYSFS |
1359 | /* br_sysfs_if.c */ | |
52cf25d0 | 1360 | extern const struct sysfs_ops brport_sysfs_ops; |
348662a1 JP |
1361 | int br_sysfs_addif(struct net_bridge_port *p); |
1362 | int br_sysfs_renameif(struct net_bridge_port *p); | |
1da177e4 LT |
1363 | |
1364 | /* br_sysfs_br.c */ | |
348662a1 JP |
1365 | int br_sysfs_addbr(struct net_device *dev); |
1366 | void br_sysfs_delbr(struct net_device *dev); | |
1da177e4 LT |
1367 | |
1368 | #else | |
1369 | ||
0cb2bbbe LJ |
1370 | static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } |
1371 | static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } | |
1372 | static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } | |
1373 | static inline void br_sysfs_delbr(struct net_device *dev) { return; } | |
1da177e4 LT |
1374 | #endif /* CONFIG_SYSFS */ |
1375 | ||
6bc506b4 IS |
1376 | /* br_switchdev.c */ |
1377 | #ifdef CONFIG_NET_SWITCHDEV | |
1378 | int nbp_switchdev_mark_set(struct net_bridge_port *p); | |
1379 | void nbp_switchdev_frame_mark(const struct net_bridge_port *p, | |
1380 | struct sk_buff *skb); | |
1381 | bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, | |
1382 | const struct sk_buff *skb); | |
3922285d AS |
1383 | int br_switchdev_set_port_flag(struct net_bridge_port *p, |
1384 | unsigned long flags, | |
1385 | unsigned long mask); | |
6b26b51b AS |
1386 | void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, |
1387 | int type); | |
169327d5 PM |
1388 | int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags, |
1389 | struct netlink_ext_ack *extack); | |
d66e4348 | 1390 | int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid); |
f1c2eddf IS |
1391 | |
1392 | static inline void br_switchdev_frame_unmark(struct sk_buff *skb) | |
1393 | { | |
1394 | skb->offload_fwd_mark = 0; | |
1395 | } | |
6bc506b4 IS |
1396 | #else |
1397 | static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) | |
1398 | { | |
1399 | return 0; | |
1400 | } | |
1401 | ||
1402 | static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, | |
1403 | struct sk_buff *skb) | |
1404 | { | |
1405 | } | |
1406 | ||
1407 | static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, | |
1408 | const struct sk_buff *skb) | |
1409 | { | |
1410 | return true; | |
1411 | } | |
3922285d AS |
1412 | |
1413 | static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, | |
1414 | unsigned long flags, | |
1415 | unsigned long mask) | |
1416 | { | |
1417 | return 0; | |
1418 | } | |
6b26b51b | 1419 | |
d66e4348 | 1420 | static inline int br_switchdev_port_vlan_add(struct net_device *dev, |
169327d5 PM |
1421 | u16 vid, u16 flags, |
1422 | struct netlink_ext_ack *extack) | |
d66e4348 PM |
1423 | { |
1424 | return -EOPNOTSUPP; | |
1425 | } | |
1426 | ||
1427 | static inline int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid) | |
1428 | { | |
1429 | return -EOPNOTSUPP; | |
1430 | } | |
1431 | ||
6b26b51b AS |
1432 | static inline void |
1433 | br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) | |
1434 | { | |
1435 | } | |
f1c2eddf IS |
1436 | |
1437 | static inline void br_switchdev_frame_unmark(struct sk_buff *skb) | |
1438 | { | |
1439 | } | |
6bc506b4 IS |
1440 | #endif /* CONFIG_NET_SWITCHDEV */ |
1441 | ||
057658cb | 1442 | /* br_arp_nd_proxy.c */ |
821f1b21 | 1443 | void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); |
057658cb RP |
1444 | void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, |
1445 | u16 vid, struct net_bridge_port *p); | |
ed842fae RP |
1446 | void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, |
1447 | u16 vid, struct net_bridge_port *p, struct nd_msg *msg); | |
1448 | struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); | |
1da177e4 | 1449 | #endif |