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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Linux ethernet bridge
3 *
4 * Authors:
5 * Lennert Buytenhek <buytenh@gnu.org>
6 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 * 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>
Linus Torvalds1da177e2005-04-16 15:20:36 -070017#include <linux/if_bridge.h>
Herbert Xu91d2c342010-06-10 16:12:50 +000018#include <linux/netpoll.h>
Eric Dumazet406818f2010-06-23 13:00:48 -070019#include <linux/u64_stats_sync.h>
Simon Wunderlich4adf0af2008-07-30 16:27:55 -070020#include <net/route.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070021
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
Stephen Hemminger9cde0702007-03-21 14:22:44 -070030#define BR_VERSION "2.3"
31
32/* Path to usermode spanning tree program */
33#define BR_STP_PROG "/sbin/bridge-stp"
Stephen Hemminger8cbb512e2005-12-21 19:01:30 -080034
Linus Torvalds1da177e2005-04-16 15:20:36 -070035typedef struct bridge_id bridge_id;
36typedef struct mac_addr mac_addr;
37typedef __u16 port_id;
38
39struct bridge_id
40{
41 unsigned char prio[2];
42 unsigned char addr[6];
43};
44
45struct mac_addr
46{
47 unsigned char addr[6];
48};
49
YOSHIFUJI Hideaki8ef2a9a2010-04-18 12:42:07 +090050struct br_ip
51{
52 union {
53 __be32 ip4;
YOSHIFUJI Hideaki08b202b2010-04-23 01:54:22 +090054#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
55 struct in6_addr ip6;
56#endif
YOSHIFUJI Hideaki8ef2a9a2010-04-18 12:42:07 +090057 } u;
58 __be16 proto;
59};
60
Linus Torvalds1da177e2005-04-16 15:20:36 -070061struct net_bridge_fdb_entry
62{
63 struct hlist_node hlist;
64 struct net_bridge_port *dst;
65
66 struct rcu_head rcu;
stephen hemminger7cd88612011-04-04 14:03:28 +000067 unsigned long updated;
68 unsigned long used;
Linus Torvalds1da177e2005-04-16 15:20:36 -070069 mac_addr addr;
70 unsigned char is_local;
71 unsigned char is_static;
72};
73
Herbert Xueb1d1642010-02-27 19:41:45 +000074struct net_bridge_port_group {
75 struct net_bridge_port *port;
Eric Dumazete8051682010-11-15 06:38:10 +000076 struct net_bridge_port_group __rcu *next;
Herbert Xueb1d1642010-02-27 19:41:45 +000077 struct hlist_node mglist;
78 struct rcu_head rcu;
79 struct timer_list timer;
80 struct timer_list query_timer;
YOSHIFUJI Hideaki8ef2a9a2010-04-18 12:42:07 +090081 struct br_ip addr;
Herbert Xueb1d1642010-02-27 19:41:45 +000082 u32 queries_sent;
83};
84
85struct net_bridge_mdb_entry
86{
87 struct hlist_node hlist[2];
Herbert Xueb1d1642010-02-27 19:41:45 +000088 struct net_bridge *br;
Eric Dumazete8051682010-11-15 06:38:10 +000089 struct net_bridge_port_group __rcu *ports;
Herbert Xueb1d1642010-02-27 19:41:45 +000090 struct rcu_head rcu;
91 struct timer_list timer;
92 struct timer_list query_timer;
YOSHIFUJI Hideaki8ef2a9a2010-04-18 12:42:07 +090093 struct br_ip addr;
Herbert Xu8a870172011-02-12 01:05:42 -080094 bool mglist;
Herbert Xueb1d1642010-02-27 19:41:45 +000095 u32 queries_sent;
96};
97
98struct net_bridge_mdb_htable
99{
100 struct hlist_head *mhash;
101 struct rcu_head rcu;
102 struct net_bridge_mdb_htable *old;
103 u32 size;
104 u32 max;
105 u32 secret;
106 u32 ver;
107};
108
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109struct net_bridge_port
110{
111 struct net_bridge *br;
112 struct net_device *dev;
113 struct list_head list;
114
115 /* STP */
116 u8 priority;
117 u8 state;
118 u16 port_no;
119 unsigned char topology_change_ack;
120 unsigned char config_pending;
121 port_id port_id;
122 port_id designated_port;
123 bridge_id designated_root;
124 bridge_id designated_bridge;
125 u32 path_cost;
126 u32 designated_cost;
stephen hemminger0c031502011-07-22 07:47:06 +0000127 unsigned long designated_age;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128
129 struct timer_list forward_delay_timer;
130 struct timer_list hold_timer;
131 struct timer_list message_age_timer;
132 struct kobject kobj;
133 struct rcu_head rcu;
Fischer, Anna3982d3d2009-08-13 06:55:16 +0000134
135 unsigned long flags;
136#define BR_HAIRPIN_MODE 0x00000001
Herbert Xueb1d1642010-02-27 19:41:45 +0000137
138#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
139 u32 multicast_startup_queries_sent;
140 unsigned char multicast_router;
141 struct timer_list multicast_router_timer;
142 struct timer_list multicast_query_timer;
143 struct hlist_head mglist;
144 struct hlist_node rlist;
145#endif
Simon Arlotte0f43752010-05-10 09:31:11 +0000146
147#ifdef CONFIG_SYSFS
148 char sysfs_name[IFNAMSIZ];
149#endif
Herbert Xu91d2c342010-06-10 16:12:50 +0000150
151#ifdef CONFIG_NET_POLL_CONTROLLER
152 struct netpoll *np;
153#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154};
155
Jiri Pirkof350a0a82010-06-15 06:50:45 +0000156#define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT)
157
stephen hemmingerb5ed54e2010-11-15 06:38:13 +0000158static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev)
159{
160 struct net_bridge_port *port = rcu_dereference(dev->rx_handler_data);
161 return br_port_exists(dev) ? port : NULL;
162}
163
Eric Dumazetec1e5612010-11-15 06:38:14 +0000164static inline struct net_bridge_port *br_port_get_rtnl(struct net_device *dev)
stephen hemmingerb5ed54e2010-11-15 06:38:13 +0000165{
Eric Dumazetec1e5612010-11-15 06:38:14 +0000166 return br_port_exists(dev) ?
167 rtnl_dereference(dev->rx_handler_data) : NULL;
stephen hemmingerb5ed54e2010-11-15 06:38:13 +0000168}
169
Eric Dumazet0eae88f2010-04-20 19:06:52 -0700170struct br_cpu_netstats {
Eric Dumazet406818f2010-06-23 13:00:48 -0700171 u64 rx_packets;
172 u64 rx_bytes;
173 u64 tx_packets;
174 u64 tx_bytes;
175 struct u64_stats_sync syncp;
Eric Dumazet0eae88f2010-04-20 19:06:52 -0700176};
177
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178struct net_bridge
179{
180 spinlock_t lock;
181 struct list_head port_list;
182 struct net_device *dev;
stephen hemminger14bb4782010-03-02 13:32:09 +0000183
Eric Dumazet0eae88f2010-04-20 19:06:52 -0700184 struct br_cpu_netstats __percpu *stats;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185 spinlock_t hash_lock;
186 struct hlist_head hash[BR_HASH_SIZE];
Simon Wunderlich4adf0af2008-07-30 16:27:55 -0700187#ifdef CONFIG_BRIDGE_NETFILTER
188 struct rtable fake_rtable;
Patrick McHardy4df53d82010-07-02 09:32:57 +0200189 bool nf_call_iptables;
190 bool nf_call_ip6tables;
191 bool nf_call_arptables;
Simon Wunderlich4adf0af2008-07-30 16:27:55 -0700192#endif
Stephen Hemminger92c05742008-06-17 16:10:06 -0700193 unsigned long flags;
194#define BR_SET_MAC_ADDR 0x00000001
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195
196 /* STP */
197 bridge_id designated_root;
198 bridge_id bridge_id;
199 u32 root_path_cost;
200 unsigned long max_age;
201 unsigned long hello_time;
202 unsigned long forward_delay;
203 unsigned long bridge_max_age;
204 unsigned long ageing_time;
205 unsigned long bridge_hello_time;
206 unsigned long bridge_forward_delay;
207
Stephen Hemmingerfda93d92006-03-20 22:59:21 -0800208 u8 group_addr[ETH_ALEN];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209 u16 root_port;
Stephen Hemminger9cde0702007-03-21 14:22:44 -0700210
211 enum {
212 BR_NO_STP, /* no spanning tree */
213 BR_KERNEL_STP, /* old STP in kernel */
214 BR_USER_STP, /* new RSTP in userspace */
215 } stp_enabled;
216
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217 unsigned char topology_change;
218 unsigned char topology_change_detected;
219
Herbert Xueb1d1642010-02-27 19:41:45 +0000220#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
221 unsigned char multicast_router;
222
223 u8 multicast_disabled:1;
224
225 u32 hash_elasticity;
226 u32 hash_max;
227
228 u32 multicast_last_member_count;
229 u32 multicast_startup_queries_sent;
230 u32 multicast_startup_query_count;
231
232 unsigned long multicast_last_member_interval;
233 unsigned long multicast_membership_interval;
234 unsigned long multicast_querier_interval;
235 unsigned long multicast_query_interval;
236 unsigned long multicast_query_response_interval;
237 unsigned long multicast_startup_query_interval;
238
239 spinlock_t multicast_lock;
Eric Dumazete8051682010-11-15 06:38:10 +0000240 struct net_bridge_mdb_htable __rcu *mdb;
Herbert Xueb1d1642010-02-27 19:41:45 +0000241 struct hlist_head router_list;
Herbert Xueb1d1642010-02-27 19:41:45 +0000242
243 struct timer_list multicast_router_timer;
244 struct timer_list multicast_querier_timer;
245 struct timer_list multicast_query_timer;
246#endif
247
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248 struct timer_list hello_timer;
249 struct timer_list tcn_timer;
250 struct timer_list topology_change_timer;
251 struct timer_list gc_timer;
Greg Kroah-Hartman43b98c42007-12-17 15:54:39 -0400252 struct kobject *ifobj;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253};
254
Herbert Xu68b7c892010-02-27 19:41:40 +0000255struct br_input_skb_cb {
256 struct net_device *brdev;
YOSHIFUJI Hideaki / 吉藤英明32dec5d2010-03-15 21:51:18 +0000257#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
Herbert Xueb1d1642010-02-27 19:41:45 +0000258 int igmp;
259 int mrouters_only;
YOSHIFUJI Hideaki / 吉藤英明32dec5d2010-03-15 21:51:18 +0000260#endif
Herbert Xu68b7c892010-02-27 19:41:40 +0000261};
262
263#define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb)
264
YOSHIFUJI Hideaki / 吉藤英明32dec5d2010-03-15 21:51:18 +0000265#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
266# define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only)
267#else
268# define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0)
269#endif
270
stephen hemminger28a16c92010-05-10 09:31:09 +0000271#define br_printk(level, br, format, args...) \
272 printk(level "%s: " format, (br)->dev->name, ##args)
273
274#define br_err(__br, format, args...) \
275 br_printk(KERN_ERR, __br, format, ##args)
276#define br_warn(__br, format, args...) \
277 br_printk(KERN_WARNING, __br, format, ##args)
278#define br_notice(__br, format, args...) \
279 br_printk(KERN_NOTICE, __br, format, ##args)
280#define br_info(__br, format, args...) \
281 br_printk(KERN_INFO, __br, format, ##args)
282
283#define br_debug(br, format, args...) \
284 pr_debug("%s: " format, (br)->dev->name, ##args)
285
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286extern struct notifier_block br_device_notifier;
Stephen Hemmingerfda93d92006-03-20 22:59:21 -0800287extern const u8 br_group_address[ETH_ALEN];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288
289/* called under bridge lock */
290static inline int br_is_root_bridge(const struct net_bridge *br)
291{
292 return !memcmp(&br->bridge_id, &br->designated_root, 8);
293}
294
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295/* br_device.c */
296extern void br_dev_setup(struct net_device *dev);
Stephen Hemminger6fef4c02009-08-31 19:50:41 +0000297extern netdev_tx_t br_dev_xmit(struct sk_buff *skb,
298 struct net_device *dev);
stephen hemmingercfb478d2010-05-10 09:31:08 +0000299#ifdef CONFIG_NET_POLL_CONTROLLER
Herbert Xu91d2c342010-06-10 16:12:50 +0000300static inline struct netpoll_info *br_netpoll_info(struct net_bridge *br)
301{
302 return br->dev->npinfo;
303}
stephen hemmingercfb478d2010-05-10 09:31:08 +0000304
Herbert Xu91d2c342010-06-10 16:12:50 +0000305static inline void br_netpoll_send_skb(const struct net_bridge_port *p,
306 struct sk_buff *skb)
307{
308 struct netpoll *np = p->np;
309
310 if (np)
311 netpoll_send_skb(np, skb);
312}
313
314extern int br_netpoll_enable(struct net_bridge_port *p);
315extern void br_netpoll_disable(struct net_bridge_port *p);
316#else
317static inline struct netpoll_info *br_netpoll_info(struct net_bridge *br)
318{
319 return NULL;
320}
321
Herbert Xu9f70b0f2010-06-15 21:43:48 -0700322static inline void br_netpoll_send_skb(const struct net_bridge_port *p,
Herbert Xu91d2c342010-06-10 16:12:50 +0000323 struct sk_buff *skb)
324{
325}
326
327static inline int br_netpoll_enable(struct net_bridge_port *p)
328{
329 return 0;
330}
331
332static inline void br_netpoll_disable(struct net_bridge_port *p)
333{
334}
stephen hemmingercfb478d2010-05-10 09:31:08 +0000335#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336
337/* br_fdb.c */
Akinobu Mita87a596e2007-04-07 18:57:07 +0900338extern int br_fdb_init(void);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339extern void br_fdb_fini(void);
Stephen Hemminger9cf63742007-04-09 12:57:54 -0700340extern void br_fdb_flush(struct net_bridge *br);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341extern void br_fdb_changeaddr(struct net_bridge_port *p,
342 const unsigned char *newaddr);
343extern void br_fdb_cleanup(unsigned long arg);
344extern void br_fdb_delete_by_port(struct net_bridge *br,
Stephen Hemminger1a620692006-10-12 14:45:38 -0700345 const struct net_bridge_port *p, int do_all);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346extern struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br,
347 const unsigned char *addr);
Michał Mirosławda678292009-06-05 05:35:28 +0000348extern int br_fdb_test_addr(struct net_device *dev, unsigned char *addr);
YOSHIFUJI Hideaki9d6f2292007-02-09 23:24:35 +0900349extern int br_fdb_fillbuf(struct net_bridge *br, void *buf,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350 unsigned long count, unsigned long off);
351extern int br_fdb_insert(struct net_bridge *br,
352 struct net_bridge_port *source,
353 const unsigned char *addr);
354extern void br_fdb_update(struct net_bridge *br,
355 struct net_bridge_port *source,
356 const unsigned char *addr);
stephen hemmingerb078f0d2011-04-04 14:03:30 +0000357extern int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb);
stephen hemminger36fd2b62011-04-04 14:03:31 +0000358extern int br_fdb_add(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
359extern int br_fdb_delete(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360
361/* br_forward.c */
362extern void br_deliver(const struct net_bridge_port *to,
363 struct sk_buff *skb);
364extern int br_dev_queue_push_xmit(struct sk_buff *skb);
365extern void br_forward(const struct net_bridge_port *to,
Michael Braun7f7708f2010-03-16 00:26:22 -0700366 struct sk_buff *skb, struct sk_buff *skb0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367extern int br_forward_finish(struct sk_buff *skb);
Herbert Xue081e1e2007-09-16 16:20:48 -0700368extern void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb);
Herbert Xub33084b2010-02-27 19:41:41 +0000369extern void br_flood_forward(struct net_bridge *br, struct sk_buff *skb,
370 struct sk_buff *skb2);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371
372/* br_if.c */
Stephen Hemminger269def72007-02-22 01:10:18 -0800373extern void br_port_carrier_check(struct net_bridge_port *p);
Alexey Dobriyan4aa678b2008-09-08 16:19:58 -0700374extern int br_add_bridge(struct net *net, const char *name);
375extern int br_del_bridge(struct net *net, const char *name);
Alexey Dobriyan712d6952008-09-08 16:20:18 -0700376extern void br_net_exit(struct net *net);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377extern int br_add_if(struct net_bridge *br,
378 struct net_device *dev);
379extern int br_del_if(struct net_bridge *br,
380 struct net_device *dev);
381extern int br_min_mtu(const struct net_bridge *br);
Michał Mirosławc4d27ef2011-04-22 06:31:16 +0000382extern u32 br_features_recompute(struct net_bridge *br, u32 features);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700383
384/* br_input.c */
385extern int br_handle_frame_finish(struct sk_buff *skb);
Jiri Pirko8a4eb572011-03-12 03:14:39 +0000386extern rx_handler_result_t br_handle_frame(struct sk_buff **pskb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387
388/* br_ioctl.c */
389extern int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
Eric W. Biederman881d9662007-09-17 11:56:21 -0700390extern int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __user *arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391
Herbert Xueb1d1642010-02-27 19:41:45 +0000392/* br_multicast.c */
393#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
394extern int br_multicast_rcv(struct net_bridge *br,
395 struct net_bridge_port *port,
396 struct sk_buff *skb);
397extern struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
398 struct sk_buff *skb);
399extern void br_multicast_add_port(struct net_bridge_port *port);
400extern void br_multicast_del_port(struct net_bridge_port *port);
401extern void br_multicast_enable_port(struct net_bridge_port *port);
402extern void br_multicast_disable_port(struct net_bridge_port *port);
403extern void br_multicast_init(struct net_bridge *br);
404extern void br_multicast_open(struct net_bridge *br);
405extern void br_multicast_stop(struct net_bridge *br);
Herbert Xu5cb5e942010-02-27 19:41:46 +0000406extern void br_multicast_deliver(struct net_bridge_mdb_entry *mdst,
407 struct sk_buff *skb);
408extern void br_multicast_forward(struct net_bridge_mdb_entry *mdst,
409 struct sk_buff *skb, struct sk_buff *skb2);
Herbert Xu0909e112010-02-27 19:41:49 +0000410extern int br_multicast_set_router(struct net_bridge *br, unsigned long val);
411extern int br_multicast_set_port_router(struct net_bridge_port *p,
412 unsigned long val);
Herbert Xu561f1102010-02-27 19:41:50 +0000413extern int br_multicast_toggle(struct net_bridge *br, unsigned long val);
Herbert Xub1951672010-02-27 19:41:51 +0000414extern int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val);
Sridhar Samudrala85b35262010-03-01 09:53:04 +0000415
416static inline bool br_multicast_is_router(struct net_bridge *br)
417{
418 return br->multicast_router == 2 ||
419 (br->multicast_router == 1 &&
420 timer_pending(&br->multicast_router_timer));
421}
Herbert Xueb1d1642010-02-27 19:41:45 +0000422#else
423static inline int br_multicast_rcv(struct net_bridge *br,
424 struct net_bridge_port *port,
425 struct sk_buff *skb)
426{
427 return 0;
428}
429
430static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
431 struct sk_buff *skb)
432{
433 return NULL;
434}
435
436static inline void br_multicast_add_port(struct net_bridge_port *port)
437{
438}
439
440static inline void br_multicast_del_port(struct net_bridge_port *port)
441{
442}
443
444static inline void br_multicast_enable_port(struct net_bridge_port *port)
445{
446}
447
448static inline void br_multicast_disable_port(struct net_bridge_port *port)
449{
450}
451
452static inline void br_multicast_init(struct net_bridge *br)
453{
454}
455
456static inline void br_multicast_open(struct net_bridge *br)
457{
458}
459
460static inline void br_multicast_stop(struct net_bridge *br)
461{
462}
Herbert Xu5cb5e942010-02-27 19:41:46 +0000463
464static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst,
465 struct sk_buff *skb)
466{
467}
468
469static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst,
470 struct sk_buff *skb,
471 struct sk_buff *skb2)
472{
473}
Herbert Xueb1d1642010-02-27 19:41:45 +0000474static inline bool br_multicast_is_router(struct net_bridge *br)
475{
Sridhar Samudrala85b35262010-03-01 09:53:04 +0000476 return 0;
Herbert Xueb1d1642010-02-27 19:41:45 +0000477}
Sridhar Samudrala85b35262010-03-01 09:53:04 +0000478#endif
Herbert Xueb1d1642010-02-27 19:41:45 +0000479
Linus Torvalds1da177e2005-04-16 15:20:36 -0700480/* br_netfilter.c */
Stephen Hemmingerc0909712006-05-25 15:59:33 -0700481#ifdef CONFIG_BRIDGE_NETFILTER
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482extern int br_netfilter_init(void);
483extern void br_netfilter_fini(void);
Simon Wunderlich4adf0af2008-07-30 16:27:55 -0700484extern void br_netfilter_rtable_init(struct net_bridge *);
Stephen Hemmingerc0909712006-05-25 15:59:33 -0700485#else
486#define br_netfilter_init() (0)
487#define br_netfilter_fini() do { } while(0)
Simon Wunderlich4adf0af2008-07-30 16:27:55 -0700488#define br_netfilter_rtable_init(x)
Stephen Hemmingerc0909712006-05-25 15:59:33 -0700489#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700490
491/* br_stp.c */
492extern void br_log_state(const struct net_bridge_port *p);
493extern struct net_bridge_port *br_get_port(struct net_bridge *br,
YOSHIFUJI Hideaki9d6f2292007-02-09 23:24:35 +0900494 u16 port_no);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700495extern void br_init_port(struct net_bridge_port *p);
496extern void br_become_designated_port(struct net_bridge_port *p);
497
stephen hemminger14f98f22011-04-04 14:03:33 +0000498extern int br_set_forward_delay(struct net_bridge *br, unsigned long x);
499extern int br_set_hello_time(struct net_bridge *br, unsigned long x);
500extern int br_set_max_age(struct net_bridge *br, unsigned long x);
501
502
Linus Torvalds1da177e2005-04-16 15:20:36 -0700503/* br_stp_if.c */
504extern void br_stp_enable_bridge(struct net_bridge *br);
505extern void br_stp_disable_bridge(struct net_bridge *br);
Stephen Hemminger9cde0702007-03-21 14:22:44 -0700506extern void br_stp_set_enabled(struct net_bridge *br, unsigned long val);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700507extern void br_stp_enable_port(struct net_bridge_port *p);
508extern void br_stp_disable_port(struct net_bridge_port *p);
stephen hemmingeredf947f2011-03-24 13:24:01 +0000509extern bool br_stp_recalculate_bridge_id(struct net_bridge *br);
Stephen Hemminger4505a3e2005-12-21 18:51:49 -0800510extern void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700511extern void br_stp_set_bridge_priority(struct net_bridge *br,
512 u16 newprio);
stephen hemminger14f98f22011-04-04 14:03:33 +0000513extern int br_stp_set_port_priority(struct net_bridge_port *p,
514 unsigned long newprio);
515extern int br_stp_set_path_cost(struct net_bridge_port *p,
516 unsigned long path_cost);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700517extern ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id);
518
519/* br_stp_bpdu.c */
Patrick McHardy7c85fbf2008-07-05 21:25:56 -0700520struct stp_proto;
521extern void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb,
522 struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700523
524/* br_stp_timer.c */
525extern void br_stp_timer_init(struct net_bridge *br);
526extern void br_stp_port_timer_init(struct net_bridge_port *p);
527extern unsigned long br_timer_value(const struct timer_list *timer);
528
529/* br.c */
Michał Mirosławda678292009-06-05 05:35:28 +0000530#if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)
531extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr);
532#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700534/* br_netlink.c */
Thomas Graf32fe21c2007-03-22 11:59:03 -0700535extern int br_netlink_init(void);
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700536extern void br_netlink_fini(void);
537extern void br_ifinfo_notify(int event, struct net_bridge_port *port);
538
Linus Torvalds1da177e2005-04-16 15:20:36 -0700539#ifdef CONFIG_SYSFS
540/* br_sysfs_if.c */
Emese Revfy52cf25d2010-01-19 02:58:23 +0100541extern const struct sysfs_ops brport_sysfs_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700542extern int br_sysfs_addif(struct net_bridge_port *p);
Simon Arlotte0f43752010-05-10 09:31:11 +0000543extern int br_sysfs_renameif(struct net_bridge_port *p);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544
545/* br_sysfs_br.c */
546extern int br_sysfs_addbr(struct net_device *dev);
547extern void br_sysfs_delbr(struct net_device *dev);
548
549#else
550
551#define br_sysfs_addif(p) (0)
Simon Arlotte0f43752010-05-10 09:31:11 +0000552#define br_sysfs_renameif(p) (0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700553#define br_sysfs_addbr(dev) (0)
554#define br_sysfs_delbr(dev) do { } while(0)
555#endif /* CONFIG_SYSFS */
556
557#endif