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> |
243a2e63 | 21 | #include <linux/if_vlan.h> |
1da177e4 LT |
22 | |
23 | #define BR_HASH_BITS 8 | |
24 | #define BR_HASH_SIZE (1 << BR_HASH_BITS) | |
25 | ||
26 | #define BR_HOLD_TIME (1*HZ) | |
27 | ||
28 | #define BR_PORT_BITS 10 | |
29 | #define BR_MAX_PORTS (1<<BR_PORT_BITS) | |
243a2e63 | 30 | #define BR_VLAN_BITMAP_LEN BITS_TO_LONGS(VLAN_N_VID) |
1da177e4 | 31 | |
9cde0708 SH |
32 | #define BR_VERSION "2.3" |
33 | ||
515853cc | 34 | /* Control of forwarding link local multicast */ |
35 | #define BR_GROUPFWD_DEFAULT 0 | |
36 | /* Don't allow forwarding control protocols like STP and LLDP */ | |
37 | #define BR_GROUPFWD_RESTRICTED 0x4007u | |
38 | ||
9cde0708 SH |
39 | /* Path to usermode spanning tree program */ |
40 | #define BR_STP_PROG "/sbin/bridge-stp" | |
8cbb512e | 41 | |
1da177e4 LT |
42 | typedef struct bridge_id bridge_id; |
43 | typedef struct mac_addr mac_addr; | |
44 | typedef __u16 port_id; | |
45 | ||
46 | struct bridge_id | |
47 | { | |
48 | unsigned char prio[2]; | |
49 | unsigned char addr[6]; | |
50 | }; | |
51 | ||
52 | struct mac_addr | |
53 | { | |
54 | unsigned char addr[6]; | |
55 | }; | |
56 | ||
8ef2a9a5 YH |
57 | struct br_ip |
58 | { | |
59 | union { | |
60 | __be32 ip4; | |
dfd56b8b | 61 | #if IS_ENABLED(CONFIG_IPV6) |
08b202b6 YH |
62 | struct in6_addr ip6; |
63 | #endif | |
8ef2a9a5 YH |
64 | } u; |
65 | __be16 proto; | |
66 | }; | |
67 | ||
243a2e63 VY |
68 | struct net_port_vlans { |
69 | u16 port_idx; | |
70 | union { | |
71 | struct net_bridge_port *port; | |
72 | struct net_bridge *br; | |
73 | } parent; | |
74 | struct rcu_head rcu; | |
75 | unsigned long vlan_bitmap[BR_VLAN_BITMAP_LEN]; | |
76 | }; | |
77 | ||
1da177e4 LT |
78 | struct net_bridge_fdb_entry |
79 | { | |
80 | struct hlist_node hlist; | |
81 | struct net_bridge_port *dst; | |
82 | ||
83 | struct rcu_head rcu; | |
7cd8861a | 84 | unsigned long updated; |
85 | unsigned long used; | |
1da177e4 LT |
86 | mac_addr addr; |
87 | unsigned char is_local; | |
88 | unsigned char is_static; | |
89 | }; | |
90 | ||
eb1d1641 HX |
91 | struct net_bridge_port_group { |
92 | struct net_bridge_port *port; | |
e8051688 | 93 | struct net_bridge_port_group __rcu *next; |
eb1d1641 HX |
94 | struct hlist_node mglist; |
95 | struct rcu_head rcu; | |
96 | struct timer_list timer; | |
8ef2a9a5 | 97 | struct br_ip addr; |
ccb1c31a | 98 | unsigned char state; |
eb1d1641 HX |
99 | }; |
100 | ||
101 | struct net_bridge_mdb_entry | |
102 | { | |
103 | struct hlist_node hlist[2]; | |
eb1d1641 | 104 | struct net_bridge *br; |
e8051688 | 105 | struct net_bridge_port_group __rcu *ports; |
eb1d1641 HX |
106 | struct rcu_head rcu; |
107 | struct timer_list timer; | |
8ef2a9a5 | 108 | struct br_ip addr; |
8a870178 | 109 | bool mglist; |
eb1d1641 HX |
110 | }; |
111 | ||
112 | struct net_bridge_mdb_htable | |
113 | { | |
114 | struct hlist_head *mhash; | |
115 | struct rcu_head rcu; | |
116 | struct net_bridge_mdb_htable *old; | |
117 | u32 size; | |
118 | u32 max; | |
119 | u32 secret; | |
120 | u32 ver; | |
121 | }; | |
122 | ||
1da177e4 LT |
123 | struct net_bridge_port |
124 | { | |
125 | struct net_bridge *br; | |
126 | struct net_device *dev; | |
127 | struct list_head list; | |
128 | ||
129 | /* STP */ | |
130 | u8 priority; | |
131 | u8 state; | |
132 | u16 port_no; | |
133 | unsigned char topology_change_ack; | |
134 | unsigned char config_pending; | |
135 | port_id port_id; | |
136 | port_id designated_port; | |
137 | bridge_id designated_root; | |
138 | bridge_id designated_bridge; | |
139 | u32 path_cost; | |
140 | u32 designated_cost; | |
0c03150e | 141 | unsigned long designated_age; |
1da177e4 LT |
142 | |
143 | struct timer_list forward_delay_timer; | |
144 | struct timer_list hold_timer; | |
145 | struct timer_list message_age_timer; | |
146 | struct kobject kobj; | |
147 | struct rcu_head rcu; | |
3982d3d2 FA |
148 | |
149 | unsigned long flags; | |
150 | #define BR_HAIRPIN_MODE 0x00000001 | |
a2e01a65 | 151 | #define BR_BPDU_GUARD 0x00000002 |
1007dd1a | 152 | #define BR_ROOT_BLOCK 0x00000004 |
c2d3babf | 153 | #define BR_MULTICAST_FAST_LEAVE 0x00000008 |
eb1d1641 HX |
154 | |
155 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING | |
156 | u32 multicast_startup_queries_sent; | |
157 | unsigned char multicast_router; | |
158 | struct timer_list multicast_router_timer; | |
159 | struct timer_list multicast_query_timer; | |
160 | struct hlist_head mglist; | |
161 | struct hlist_node rlist; | |
162 | #endif | |
e0f43752 SA |
163 | |
164 | #ifdef CONFIG_SYSFS | |
165 | char sysfs_name[IFNAMSIZ]; | |
166 | #endif | |
91d2c34a HX |
167 | |
168 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
169 | struct netpoll *np; | |
170 | #endif | |
243a2e63 VY |
171 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
172 | struct net_port_vlans __rcu *vlan_info; | |
173 | #endif | |
1da177e4 LT |
174 | }; |
175 | ||
f350a0a8 JP |
176 | #define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT) |
177 | ||
b5ed54e9 | 178 | static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) |
179 | { | |
2469ffd7 JF |
180 | struct net_bridge_port *port = |
181 | rcu_dereference_rtnl(dev->rx_handler_data); | |
182 | ||
b5ed54e9 | 183 | return br_port_exists(dev) ? port : NULL; |
184 | } | |
185 | ||
ec1e5610 | 186 | static inline struct net_bridge_port *br_port_get_rtnl(struct net_device *dev) |
b5ed54e9 | 187 | { |
ec1e5610 ED |
188 | return br_port_exists(dev) ? |
189 | rtnl_dereference(dev->rx_handler_data) : NULL; | |
b5ed54e9 | 190 | } |
191 | ||
0eae88f3 | 192 | struct br_cpu_netstats { |
406818ff ED |
193 | u64 rx_packets; |
194 | u64 rx_bytes; | |
195 | u64 tx_packets; | |
196 | u64 tx_bytes; | |
197 | struct u64_stats_sync syncp; | |
0eae88f3 ED |
198 | }; |
199 | ||
1da177e4 LT |
200 | struct net_bridge |
201 | { | |
202 | spinlock_t lock; | |
203 | struct list_head port_list; | |
204 | struct net_device *dev; | |
14bb4789 | 205 | |
0eae88f3 | 206 | struct br_cpu_netstats __percpu *stats; |
1da177e4 LT |
207 | spinlock_t hash_lock; |
208 | struct hlist_head hash[BR_HASH_SIZE]; | |
4adf0af6 SW |
209 | #ifdef CONFIG_BRIDGE_NETFILTER |
210 | struct rtable fake_rtable; | |
4df53d8b PM |
211 | bool nf_call_iptables; |
212 | bool nf_call_ip6tables; | |
213 | bool nf_call_arptables; | |
4adf0af6 | 214 | #endif |
515853cc | 215 | u16 group_fwd_mask; |
216 | ||
1da177e4 LT |
217 | /* STP */ |
218 | bridge_id designated_root; | |
219 | bridge_id bridge_id; | |
220 | u32 root_path_cost; | |
221 | unsigned long max_age; | |
222 | unsigned long hello_time; | |
223 | unsigned long forward_delay; | |
224 | unsigned long bridge_max_age; | |
225 | unsigned long ageing_time; | |
226 | unsigned long bridge_hello_time; | |
227 | unsigned long bridge_forward_delay; | |
228 | ||
fda93d92 | 229 | u8 group_addr[ETH_ALEN]; |
1da177e4 | 230 | u16 root_port; |
9cde0708 SH |
231 | |
232 | enum { | |
233 | BR_NO_STP, /* no spanning tree */ | |
234 | BR_KERNEL_STP, /* old STP in kernel */ | |
235 | BR_USER_STP, /* new RSTP in userspace */ | |
236 | } stp_enabled; | |
237 | ||
1da177e4 LT |
238 | unsigned char topology_change; |
239 | unsigned char topology_change_detected; | |
240 | ||
eb1d1641 HX |
241 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
242 | unsigned char multicast_router; | |
243 | ||
244 | u8 multicast_disabled:1; | |
c5c23260 | 245 | u8 multicast_querier:1; |
eb1d1641 HX |
246 | |
247 | u32 hash_elasticity; | |
248 | u32 hash_max; | |
249 | ||
250 | u32 multicast_last_member_count; | |
251 | u32 multicast_startup_queries_sent; | |
252 | u32 multicast_startup_query_count; | |
253 | ||
254 | unsigned long multicast_last_member_interval; | |
255 | unsigned long multicast_membership_interval; | |
256 | unsigned long multicast_querier_interval; | |
257 | unsigned long multicast_query_interval; | |
258 | unsigned long multicast_query_response_interval; | |
259 | unsigned long multicast_startup_query_interval; | |
260 | ||
261 | spinlock_t multicast_lock; | |
e8051688 | 262 | struct net_bridge_mdb_htable __rcu *mdb; |
eb1d1641 | 263 | struct hlist_head router_list; |
eb1d1641 HX |
264 | |
265 | struct timer_list multicast_router_timer; | |
266 | struct timer_list multicast_querier_timer; | |
267 | struct timer_list multicast_query_timer; | |
268 | #endif | |
269 | ||
1da177e4 LT |
270 | struct timer_list hello_timer; |
271 | struct timer_list tcn_timer; | |
272 | struct timer_list topology_change_timer; | |
273 | struct timer_list gc_timer; | |
43b98c4a | 274 | struct kobject *ifobj; |
243a2e63 VY |
275 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING |
276 | u8 vlan_enabled; | |
277 | struct net_port_vlans __rcu *vlan_info; | |
278 | #endif | |
1da177e4 LT |
279 | }; |
280 | ||
68b7c895 HX |
281 | struct br_input_skb_cb { |
282 | struct net_device *brdev; | |
32dec5dd | 283 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
eb1d1641 HX |
284 | int igmp; |
285 | int mrouters_only; | |
32dec5dd | 286 | #endif |
68b7c895 HX |
287 | }; |
288 | ||
289 | #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) | |
290 | ||
32dec5dd YH |
291 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
292 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) | |
293 | #else | |
294 | # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) | |
295 | #endif | |
296 | ||
28a16c97 | 297 | #define br_printk(level, br, format, args...) \ |
298 | printk(level "%s: " format, (br)->dev->name, ##args) | |
299 | ||
300 | #define br_err(__br, format, args...) \ | |
301 | br_printk(KERN_ERR, __br, format, ##args) | |
302 | #define br_warn(__br, format, args...) \ | |
303 | br_printk(KERN_WARNING, __br, format, ##args) | |
304 | #define br_notice(__br, format, args...) \ | |
305 | br_printk(KERN_NOTICE, __br, format, ##args) | |
306 | #define br_info(__br, format, args...) \ | |
307 | br_printk(KERN_INFO, __br, format, ##args) | |
308 | ||
309 | #define br_debug(br, format, args...) \ | |
310 | pr_debug("%s: " format, (br)->dev->name, ##args) | |
311 | ||
1da177e4 | 312 | extern struct notifier_block br_device_notifier; |
1da177e4 LT |
313 | |
314 | /* called under bridge lock */ | |
315 | static inline int br_is_root_bridge(const struct net_bridge *br) | |
316 | { | |
317 | return !memcmp(&br->bridge_id, &br->designated_root, 8); | |
318 | } | |
319 | ||
1da177e4 LT |
320 | /* br_device.c */ |
321 | extern void br_dev_setup(struct net_device *dev); | |
1ce5cce8 | 322 | extern void br_dev_delete(struct net_device *dev, struct list_head *list); |
6fef4c0c SH |
323 | extern netdev_tx_t br_dev_xmit(struct sk_buff *skb, |
324 | struct net_device *dev); | |
cfb478da | 325 | #ifdef CONFIG_NET_POLL_CONTROLLER |
91d2c34a HX |
326 | static inline struct netpoll_info *br_netpoll_info(struct net_bridge *br) |
327 | { | |
328 | return br->dev->npinfo; | |
329 | } | |
330 | ||
331 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, | |
332 | struct sk_buff *skb) | |
333 | { | |
334 | struct netpoll *np = p->np; | |
335 | ||
336 | if (np) | |
337 | netpoll_send_skb(np, skb); | |
338 | } | |
339 | ||
47be03a2 | 340 | extern int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp); |
91d2c34a | 341 | extern void br_netpoll_disable(struct net_bridge_port *p); |
cfb478da | 342 | #else |
91d2c34a HX |
343 | static inline struct netpoll_info *br_netpoll_info(struct net_bridge *br) |
344 | { | |
345 | return NULL; | |
346 | } | |
347 | ||
9f70b0fc | 348 | static inline void br_netpoll_send_skb(const struct net_bridge_port *p, |
91d2c34a HX |
349 | struct sk_buff *skb) |
350 | { | |
351 | } | |
cfb478da | 352 | |
47be03a2 | 353 | static inline int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp) |
91d2c34a HX |
354 | { |
355 | return 0; | |
356 | } | |
357 | ||
358 | static inline void br_netpoll_disable(struct net_bridge_port *p) | |
359 | { | |
360 | } | |
cfb478da | 361 | #endif |
1da177e4 LT |
362 | |
363 | /* br_fdb.c */ | |
87a596e0 | 364 | extern int br_fdb_init(void); |
1da177e4 | 365 | extern void br_fdb_fini(void); |
9cf63747 | 366 | extern void br_fdb_flush(struct net_bridge *br); |
1da177e4 LT |
367 | extern void br_fdb_changeaddr(struct net_bridge_port *p, |
368 | const unsigned char *newaddr); | |
43598813 | 369 | extern void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); |
1da177e4 LT |
370 | extern void br_fdb_cleanup(unsigned long arg); |
371 | extern void br_fdb_delete_by_port(struct net_bridge *br, | |
1a620698 | 372 | const struct net_bridge_port *p, int do_all); |
1da177e4 LT |
373 | extern struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br, |
374 | const unsigned char *addr); | |
da678292 | 375 | extern int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); |
9d6f229f | 376 | extern int br_fdb_fillbuf(struct net_bridge *br, void *buf, |
1da177e4 LT |
377 | unsigned long count, unsigned long off); |
378 | extern int br_fdb_insert(struct net_bridge *br, | |
379 | struct net_bridge_port *source, | |
380 | const unsigned char *addr); | |
381 | extern void br_fdb_update(struct net_bridge *br, | |
382 | struct net_bridge_port *source, | |
383 | const unsigned char *addr); | |
77162022 JF |
384 | |
385 | extern int br_fdb_delete(struct ndmsg *ndm, | |
386 | struct net_device *dev, | |
6b6e2725 | 387 | const unsigned char *addr); |
edc7d573 | 388 | extern int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], |
77162022 | 389 | struct net_device *dev, |
6b6e2725 | 390 | const unsigned char *addr, |
77162022 JF |
391 | u16 nlh_flags); |
392 | extern int br_fdb_dump(struct sk_buff *skb, | |
393 | struct netlink_callback *cb, | |
394 | struct net_device *dev, | |
395 | int idx); | |
1da177e4 LT |
396 | |
397 | /* br_forward.c */ | |
398 | extern void br_deliver(const struct net_bridge_port *to, | |
399 | struct sk_buff *skb); | |
400 | extern int br_dev_queue_push_xmit(struct sk_buff *skb); | |
401 | extern void br_forward(const struct net_bridge_port *to, | |
7f7708f0 | 402 | struct sk_buff *skb, struct sk_buff *skb0); |
1da177e4 | 403 | extern int br_forward_finish(struct sk_buff *skb); |
e081e1e3 | 404 | extern void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb); |
b33084be HX |
405 | extern void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, |
406 | struct sk_buff *skb2); | |
1da177e4 LT |
407 | |
408 | /* br_if.c */ | |
269def7c | 409 | extern void br_port_carrier_check(struct net_bridge_port *p); |
4aa678ba AD |
410 | extern int br_add_bridge(struct net *net, const char *name); |
411 | extern int br_del_bridge(struct net *net, const char *name); | |
712d6954 | 412 | extern void br_net_exit(struct net *net); |
1da177e4 LT |
413 | extern int br_add_if(struct net_bridge *br, |
414 | struct net_device *dev); | |
415 | extern int br_del_if(struct net_bridge *br, | |
416 | struct net_device *dev); | |
417 | extern int br_min_mtu(const struct net_bridge *br); | |
c8f44aff MM |
418 | extern netdev_features_t br_features_recompute(struct net_bridge *br, |
419 | netdev_features_t features); | |
1da177e4 LT |
420 | |
421 | /* br_input.c */ | |
422 | extern int br_handle_frame_finish(struct sk_buff *skb); | |
8a4eb573 | 423 | extern rx_handler_result_t br_handle_frame(struct sk_buff **pskb); |
1da177e4 LT |
424 | |
425 | /* br_ioctl.c */ | |
426 | extern int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); | |
881d966b | 427 | extern int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __user *arg); |
1da177e4 | 428 | |
eb1d1641 HX |
429 | /* br_multicast.c */ |
430 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING | |
2ce297fc | 431 | extern unsigned int br_mdb_rehash_seq; |
eb1d1641 HX |
432 | extern int br_multicast_rcv(struct net_bridge *br, |
433 | struct net_bridge_port *port, | |
434 | struct sk_buff *skb); | |
435 | extern struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, | |
436 | struct sk_buff *skb); | |
437 | extern void br_multicast_add_port(struct net_bridge_port *port); | |
438 | extern void br_multicast_del_port(struct net_bridge_port *port); | |
439 | extern void br_multicast_enable_port(struct net_bridge_port *port); | |
440 | extern void br_multicast_disable_port(struct net_bridge_port *port); | |
441 | extern void br_multicast_init(struct net_bridge *br); | |
442 | extern void br_multicast_open(struct net_bridge *br); | |
443 | extern void br_multicast_stop(struct net_bridge *br); | |
5cb5e947 HX |
444 | extern void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, |
445 | struct sk_buff *skb); | |
446 | extern void br_multicast_forward(struct net_bridge_mdb_entry *mdst, | |
447 | struct sk_buff *skb, struct sk_buff *skb2); | |
0909e117 HX |
448 | extern int br_multicast_set_router(struct net_bridge *br, unsigned long val); |
449 | extern int br_multicast_set_port_router(struct net_bridge_port *p, | |
450 | unsigned long val); | |
561f1103 | 451 | extern int br_multicast_toggle(struct net_bridge *br, unsigned long val); |
c5c23260 | 452 | extern int br_multicast_set_querier(struct net_bridge *br, unsigned long val); |
b195167f | 453 | extern int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); |
cfd56754 CW |
454 | extern struct net_bridge_mdb_entry *br_mdb_ip_get( |
455 | struct net_bridge_mdb_htable *mdb, | |
456 | struct br_ip *dst); | |
457 | extern struct net_bridge_mdb_entry *br_multicast_new_group(struct net_bridge *br, | |
458 | struct net_bridge_port *port, struct br_ip *group); | |
459 | extern void br_multicast_free_pg(struct rcu_head *head); | |
460 | extern struct net_bridge_port_group *br_multicast_new_port_group( | |
461 | struct net_bridge_port *port, | |
462 | struct br_ip *group, | |
ccb1c31a AW |
463 | struct net_bridge_port_group *next, |
464 | unsigned char state); | |
ee07c6e7 | 465 | extern void br_mdb_init(void); |
63233159 | 466 | extern void br_mdb_uninit(void); |
37a393bc CW |
467 | extern void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, |
468 | struct br_ip *group, int type); | |
85b35269 | 469 | |
cfd56754 CW |
470 | #define mlock_dereference(X, br) \ |
471 | rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock)) | |
472 | ||
473 | #if IS_ENABLED(CONFIG_IPV6) | |
474 | #include <net/addrconf.h> | |
475 | static inline int ipv6_is_transient_multicast(const struct in6_addr *addr) | |
476 | { | |
477 | if (ipv6_addr_is_multicast(addr) && IPV6_ADDR_MC_FLAG_TRANSIENT(addr)) | |
478 | return 1; | |
479 | return 0; | |
480 | } | |
481 | #endif | |
482 | ||
85b35269 SS |
483 | static inline bool br_multicast_is_router(struct net_bridge *br) |
484 | { | |
485 | return br->multicast_router == 2 || | |
486 | (br->multicast_router == 1 && | |
487 | timer_pending(&br->multicast_router_timer)); | |
488 | } | |
eb1d1641 HX |
489 | #else |
490 | static inline int br_multicast_rcv(struct net_bridge *br, | |
491 | struct net_bridge_port *port, | |
492 | struct sk_buff *skb) | |
493 | { | |
494 | return 0; | |
495 | } | |
496 | ||
497 | static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, | |
498 | struct sk_buff *skb) | |
499 | { | |
500 | return NULL; | |
501 | } | |
502 | ||
503 | static inline void br_multicast_add_port(struct net_bridge_port *port) | |
504 | { | |
505 | } | |
506 | ||
507 | static inline void br_multicast_del_port(struct net_bridge_port *port) | |
508 | { | |
509 | } | |
510 | ||
511 | static inline void br_multicast_enable_port(struct net_bridge_port *port) | |
512 | { | |
513 | } | |
514 | ||
515 | static inline void br_multicast_disable_port(struct net_bridge_port *port) | |
516 | { | |
517 | } | |
518 | ||
519 | static inline void br_multicast_init(struct net_bridge *br) | |
520 | { | |
521 | } | |
522 | ||
523 | static inline void br_multicast_open(struct net_bridge *br) | |
524 | { | |
525 | } | |
526 | ||
527 | static inline void br_multicast_stop(struct net_bridge *br) | |
528 | { | |
529 | } | |
5cb5e947 HX |
530 | |
531 | static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst, | |
532 | struct sk_buff *skb) | |
533 | { | |
534 | } | |
535 | ||
536 | static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst, | |
537 | struct sk_buff *skb, | |
538 | struct sk_buff *skb2) | |
539 | { | |
540 | } | |
eb1d1641 HX |
541 | static inline bool br_multicast_is_router(struct net_bridge *br) |
542 | { | |
85b35269 | 543 | return 0; |
eb1d1641 | 544 | } |
fdb184d1 RR |
545 | static inline void br_mdb_init(void) |
546 | { | |
547 | } | |
548 | static inline void br_mdb_uninit(void) | |
549 | { | |
550 | } | |
85b35269 | 551 | #endif |
eb1d1641 | 552 | |
243a2e63 VY |
553 | /* br_vlan.c */ |
554 | #ifdef CONFIG_BRIDGE_VLAN_FILTERING | |
a37b85c9 VY |
555 | extern bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v, |
556 | struct sk_buff *skb); | |
85f46c6b VY |
557 | extern bool br_allowed_egress(struct net_bridge *br, |
558 | const struct net_port_vlans *v, | |
559 | const struct sk_buff *skb); | |
243a2e63 VY |
560 | extern int br_vlan_add(struct net_bridge *br, u16 vid); |
561 | extern int br_vlan_delete(struct net_bridge *br, u16 vid); | |
562 | extern void br_vlan_flush(struct net_bridge *br); | |
563 | extern int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); | |
564 | extern int nbp_vlan_add(struct net_bridge_port *port, u16 vid); | |
565 | extern int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); | |
566 | extern void nbp_vlan_flush(struct net_bridge_port *port); | |
a37b85c9 VY |
567 | |
568 | static inline struct net_port_vlans *br_get_vlan_info( | |
569 | const struct net_bridge *br) | |
570 | { | |
571 | return rcu_dereference(br->vlan_info); | |
572 | } | |
573 | ||
574 | static inline struct net_port_vlans *nbp_get_vlan_info( | |
575 | const struct net_bridge_port *p) | |
576 | { | |
577 | return rcu_dereference(p->vlan_info); | |
578 | } | |
579 | ||
580 | /* Since bridge now depends on 8021Q module, but the time bridge sees the | |
581 | * skb, the vlan tag will always be present if the frame was tagged. | |
582 | */ | |
583 | static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) | |
584 | { | |
585 | int err = 0; | |
586 | ||
587 | if (vlan_tx_tag_present(skb)) | |
588 | *vid = vlan_tx_tag_get(skb) & VLAN_VID_MASK; | |
589 | else { | |
590 | *vid = 0; | |
591 | err = -EINVAL; | |
592 | } | |
593 | ||
594 | return err; | |
595 | } | |
243a2e63 | 596 | #else |
a37b85c9 VY |
597 | static inline bool br_allowed_ingress(struct net_bridge *br, |
598 | struct net_port_vlans *v, | |
599 | struct sk_buff *skb) | |
600 | { | |
601 | return true; | |
602 | } | |
603 | ||
85f46c6b VY |
604 | static inline bool br_allowed_egress(struct net_bridge *br, |
605 | const struct net_port_vlans *v, | |
606 | const struct sk_buff *skb) | |
607 | { | |
608 | return true; | |
609 | } | |
610 | ||
243a2e63 VY |
611 | static inline int br_vlan_add(struct net_bridge *br, u16 vid) |
612 | { | |
613 | return -EOPNOTSUPP; | |
614 | } | |
615 | ||
616 | static inline int br_vlan_delete(struct net_bridge *br, u16 vid) | |
617 | { | |
618 | return -EOPNOTSUPP; | |
619 | } | |
620 | ||
621 | static inline void br_vlan_flush(struct net_bridge *br) | |
622 | { | |
623 | } | |
624 | ||
625 | static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid) | |
626 | { | |
627 | return -EOPNOTSUPP; | |
628 | } | |
629 | ||
630 | static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) | |
631 | { | |
632 | return -EOPNOTSUPP; | |
633 | } | |
634 | ||
635 | static inline void nbp_vlan_flush(struct net_bridge_port *port) | |
636 | { | |
637 | } | |
638 | ||
a37b85c9 VY |
639 | static inline struct net_port_vlans *br_get_vlan_info( |
640 | const struct net_bridge *br) | |
641 | { | |
642 | return NULL; | |
643 | } | |
644 | static inline struct net_port_vlans *nbp_get_vlan_info( | |
645 | const struct net_bridge_port *p) | |
646 | { | |
647 | return NULL; | |
648 | } | |
649 | ||
650 | static inline u16 br_vlan_get_tag(const struct sk_buff *skb) | |
651 | { | |
652 | return 0; | |
653 | } | |
243a2e63 VY |
654 | #endif |
655 | ||
1da177e4 | 656 | /* br_netfilter.c */ |
c0909713 | 657 | #ifdef CONFIG_BRIDGE_NETFILTER |
1da177e4 LT |
658 | extern int br_netfilter_init(void); |
659 | extern void br_netfilter_fini(void); | |
4adf0af6 | 660 | extern void br_netfilter_rtable_init(struct net_bridge *); |
c0909713 SH |
661 | #else |
662 | #define br_netfilter_init() (0) | |
663 | #define br_netfilter_fini() do { } while(0) | |
4adf0af6 | 664 | #define br_netfilter_rtable_init(x) |
c0909713 | 665 | #endif |
1da177e4 LT |
666 | |
667 | /* br_stp.c */ | |
668 | extern void br_log_state(const struct net_bridge_port *p); | |
669 | extern struct net_bridge_port *br_get_port(struct net_bridge *br, | |
9d6f229f | 670 | u16 port_no); |
1da177e4 LT |
671 | extern void br_init_port(struct net_bridge_port *p); |
672 | extern void br_become_designated_port(struct net_bridge_port *p); | |
673 | ||
14f98f25 | 674 | extern int br_set_forward_delay(struct net_bridge *br, unsigned long x); |
675 | extern int br_set_hello_time(struct net_bridge *br, unsigned long x); | |
676 | extern int br_set_max_age(struct net_bridge *br, unsigned long x); | |
677 | ||
678 | ||
1da177e4 LT |
679 | /* br_stp_if.c */ |
680 | extern void br_stp_enable_bridge(struct net_bridge *br); | |
681 | extern void br_stp_disable_bridge(struct net_bridge *br); | |
9cde0708 | 682 | extern void br_stp_set_enabled(struct net_bridge *br, unsigned long val); |
1da177e4 LT |
683 | extern void br_stp_enable_port(struct net_bridge_port *p); |
684 | extern void br_stp_disable_port(struct net_bridge_port *p); | |
edf947f1 | 685 | extern bool br_stp_recalculate_bridge_id(struct net_bridge *br); |
4505a3ef | 686 | extern void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); |
1da177e4 LT |
687 | extern void br_stp_set_bridge_priority(struct net_bridge *br, |
688 | u16 newprio); | |
14f98f25 | 689 | extern int br_stp_set_port_priority(struct net_bridge_port *p, |
690 | unsigned long newprio); | |
691 | extern int br_stp_set_path_cost(struct net_bridge_port *p, | |
692 | unsigned long path_cost); | |
1da177e4 LT |
693 | extern ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); |
694 | ||
695 | /* br_stp_bpdu.c */ | |
7c85fbf0 PM |
696 | struct stp_proto; |
697 | extern void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, | |
698 | struct net_device *dev); | |
1da177e4 LT |
699 | |
700 | /* br_stp_timer.c */ | |
701 | extern void br_stp_timer_init(struct net_bridge *br); | |
702 | extern void br_stp_port_timer_init(struct net_bridge_port *p); | |
703 | extern unsigned long br_timer_value(const struct timer_list *timer); | |
704 | ||
705 | /* br.c */ | |
e6373c4c | 706 | #if IS_ENABLED(CONFIG_ATM_LANE) |
da678292 MM |
707 | extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); |
708 | #endif | |
1da177e4 | 709 | |
11dc1f36 | 710 | /* br_netlink.c */ |
149ddd83 | 711 | extern struct rtnl_link_ops br_link_ops; |
32fe21c0 | 712 | extern int br_netlink_init(void); |
11dc1f36 SH |
713 | extern void br_netlink_fini(void); |
714 | extern void br_ifinfo_notify(int event, struct net_bridge_port *port); | |
e5a55a89 | 715 | extern int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg); |
407af329 | 716 | extern int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg); |
e5a55a89 JF |
717 | extern int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, |
718 | struct net_device *dev); | |
11dc1f36 | 719 | |
1da177e4 LT |
720 | #ifdef CONFIG_SYSFS |
721 | /* br_sysfs_if.c */ | |
52cf25d0 | 722 | extern const struct sysfs_ops brport_sysfs_ops; |
1da177e4 | 723 | extern int br_sysfs_addif(struct net_bridge_port *p); |
e0f43752 | 724 | extern int br_sysfs_renameif(struct net_bridge_port *p); |
1da177e4 LT |
725 | |
726 | /* br_sysfs_br.c */ | |
727 | extern int br_sysfs_addbr(struct net_device *dev); | |
728 | extern void br_sysfs_delbr(struct net_device *dev); | |
729 | ||
730 | #else | |
731 | ||
0cb2bbbe LJ |
732 | static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; } |
733 | static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; } | |
734 | static inline int br_sysfs_addbr(struct net_device *dev) { return 0; } | |
735 | static inline void br_sysfs_delbr(struct net_device *dev) { return; } | |
1da177e4 LT |
736 | #endif /* CONFIG_SYSFS */ |
737 | ||
738 | #endif |