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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>
Vlad Yasevich243a2e62013-02-13 12:00:09 +000021#include <linux/if_vlan.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070022
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)
Vlad Yasevich243a2e62013-02-13 12:00:09 +000030#define BR_VLAN_BITMAP_LEN BITS_TO_LONGS(VLAN_N_VID)
Linus Torvalds1da177e2005-04-16 15:20:36 -070031
Stephen Hemminger9cde0702007-03-21 14:22:44 -070032#define BR_VERSION "2.3"
33
stephen hemminger515853c2011-10-03 18:14:46 +000034/* 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
Toshiaki Makitaf2808d22014-06-10 20:59:24 +090038/* The Nearest Customer Bridge Group Address, 01-80-C2-00-00-[00,0B,0C,0D,0F] */
39#define BR_GROUPFWD_8021AD 0xB801u
stephen hemminger515853c2011-10-03 18:14:46 +000040
Stephen Hemminger9cde0702007-03-21 14:22:44 -070041/* Path to usermode spanning tree program */
42#define BR_STP_PROG "/sbin/bridge-stp"
Stephen Hemminger8cbb512e2005-12-21 19:01:30 -080043
Linus Torvalds1da177e2005-04-16 15:20:36 -070044typedef struct bridge_id bridge_id;
45typedef struct mac_addr mac_addr;
46typedef __u16 port_id;
47
48struct bridge_id
49{
50 unsigned char prio[2];
Joe Perchese5a727f2014-02-23 00:05:25 -080051 unsigned char addr[ETH_ALEN];
Linus Torvalds1da177e2005-04-16 15:20:36 -070052};
53
54struct mac_addr
55{
Joe Perchese5a727f2014-02-23 00:05:25 -080056 unsigned char addr[ETH_ALEN];
Linus Torvalds1da177e2005-04-16 15:20:36 -070057};
58
Linus Lüssingcc0fdd82013-08-30 17:28:17 +020059#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
60/* our own querier */
Linus Lüssing90010b32014-06-07 18:26:26 +020061struct bridge_mcast_own_query {
Linus Lüssingcc0fdd82013-08-30 17:28:17 +020062 struct timer_list timer;
63 u32 startup_sent;
64};
65
66/* other querier */
Linus Lüssing90010b32014-06-07 18:26:26 +020067struct bridge_mcast_other_query {
Linus Lüssingcc0fdd82013-08-30 17:28:17 +020068 struct timer_list timer;
69 unsigned long delay_time;
70};
Linus Lüssingdc4eb532014-06-07 18:26:27 +020071
72/* selected querier */
73struct bridge_mcast_querier {
74 struct br_ip addr;
Linus Lüssing2cd41432014-06-07 18:26:29 +020075 struct net_bridge_port __rcu *port;
Linus Lüssingdc4eb532014-06-07 18:26:27 +020076};
Linus Lüssingcc0fdd82013-08-30 17:28:17 +020077#endif
78
Vlad Yasevich243a2e62013-02-13 12:00:09 +000079struct net_port_vlans {
80 u16 port_idx;
Vlad Yasevich78851982013-02-13 12:00:14 +000081 u16 pvid;
Vlad Yasevich243a2e62013-02-13 12:00:09 +000082 union {
83 struct net_bridge_port *port;
84 struct net_bridge *br;
85 } parent;
86 struct rcu_head rcu;
87 unsigned long vlan_bitmap[BR_VLAN_BITMAP_LEN];
Vlad Yasevich35e03f32013-02-13 12:00:20 +000088 unsigned long untagged_bitmap[BR_VLAN_BITMAP_LEN];
Vlad Yasevich6cbdcee2013-02-13 12:00:13 +000089 u16 num_vlans;
Vlad Yasevich243a2e62013-02-13 12:00:09 +000090};
91
Linus Torvalds1da177e2005-04-16 15:20:36 -070092struct net_bridge_fdb_entry
93{
94 struct hlist_node hlist;
95 struct net_bridge_port *dst;
96
97 struct rcu_head rcu;
stephen hemminger7cd88612011-04-04 14:03:28 +000098 unsigned long updated;
99 unsigned long used;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700100 mac_addr addr;
Jiri Pirko93859b12014-11-28 14:34:14 +0100101 unsigned char is_local:1,
102 is_static:1,
Scott Feldmancf6b8e12014-11-28 14:34:21 +0100103 added_by_user:1,
104 added_by_external_learn:1;
Vlad Yasevich2ba071e2013-02-13 12:00:16 +0000105 __u16 vlan_id;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106};
107
Herbert Xueb1d1642010-02-27 19:41:45 +0000108struct net_bridge_port_group {
109 struct net_bridge_port *port;
Eric Dumazete8051682010-11-15 06:38:10 +0000110 struct net_bridge_port_group __rcu *next;
Herbert Xueb1d1642010-02-27 19:41:45 +0000111 struct hlist_node mglist;
112 struct rcu_head rcu;
113 struct timer_list timer;
YOSHIFUJI Hideaki8ef2a9a2010-04-18 12:42:07 +0900114 struct br_ip addr;
Amerigo Wangccb1c312012-12-14 22:09:51 +0000115 unsigned char state;
Herbert Xueb1d1642010-02-27 19:41:45 +0000116};
117
118struct net_bridge_mdb_entry
119{
120 struct hlist_node hlist[2];
Herbert Xueb1d1642010-02-27 19:41:45 +0000121 struct net_bridge *br;
Eric Dumazete8051682010-11-15 06:38:10 +0000122 struct net_bridge_port_group __rcu *ports;
Herbert Xueb1d1642010-02-27 19:41:45 +0000123 struct rcu_head rcu;
124 struct timer_list timer;
YOSHIFUJI Hideaki8ef2a9a2010-04-18 12:42:07 +0900125 struct br_ip addr;
Herbert Xu8a870172011-02-12 01:05:42 -0800126 bool mglist;
Herbert Xueb1d1642010-02-27 19:41:45 +0000127};
128
129struct net_bridge_mdb_htable
130{
131 struct hlist_head *mhash;
132 struct rcu_head rcu;
133 struct net_bridge_mdb_htable *old;
134 u32 size;
135 u32 max;
136 u32 secret;
137 u32 ver;
138};
139
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140struct net_bridge_port
141{
142 struct net_bridge *br;
143 struct net_device *dev;
144 struct list_head list;
145
146 /* STP */
147 u8 priority;
148 u8 state;
149 u16 port_no;
150 unsigned char topology_change_ack;
151 unsigned char config_pending;
152 port_id port_id;
153 port_id designated_port;
154 bridge_id designated_root;
155 bridge_id designated_bridge;
156 u32 path_cost;
157 u32 designated_cost;
stephen hemminger0c031502011-07-22 07:47:06 +0000158 unsigned long designated_age;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159
160 struct timer_list forward_delay_timer;
161 struct timer_list hold_timer;
162 struct timer_list message_age_timer;
163 struct kobject kobj;
164 struct rcu_head rcu;
Fischer, Anna3982d3d2009-08-13 06:55:16 +0000165
166 unsigned long flags;
Herbert Xueb1d1642010-02-27 19:41:45 +0000167
168#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
Linus Lüssing90010b32014-06-07 18:26:26 +0200169 struct bridge_mcast_own_query ip4_own_query;
Linus Lüssingcc0fdd82013-08-30 17:28:17 +0200170#if IS_ENABLED(CONFIG_IPV6)
Linus Lüssing90010b32014-06-07 18:26:26 +0200171 struct bridge_mcast_own_query ip6_own_query;
Linus Lüssingcc0fdd82013-08-30 17:28:17 +0200172#endif /* IS_ENABLED(CONFIG_IPV6) */
Herbert Xueb1d1642010-02-27 19:41:45 +0000173 unsigned char multicast_router;
174 struct timer_list multicast_router_timer;
Herbert Xueb1d1642010-02-27 19:41:45 +0000175 struct hlist_head mglist;
176 struct hlist_node rlist;
177#endif
Simon Arlotte0f43752010-05-10 09:31:11 +0000178
179#ifdef CONFIG_SYSFS
180 char sysfs_name[IFNAMSIZ];
181#endif
Herbert Xu91d2c342010-06-10 16:12:50 +0000182
183#ifdef CONFIG_NET_POLL_CONTROLLER
184 struct netpoll *np;
185#endif
Vlad Yasevich243a2e62013-02-13 12:00:09 +0000186#ifdef CONFIG_BRIDGE_VLAN_FILTERING
187 struct net_port_vlans __rcu *vlan_info;
188#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189};
190
Vlad Yaseviche028e4b2014-05-16 09:59:16 -0400191#define br_auto_port(p) ((p)->flags & BR_AUTO_MASK)
Vlad Yasevichf3a6ddf2014-05-16 09:59:18 -0400192#define br_promisc_port(p) ((p)->flags & BR_PROMISC)
Vlad Yaseviche028e4b2014-05-16 09:59:16 -0400193
Jiri Pirkof350a0a82010-06-15 06:50:45 +0000194#define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT)
195
stephen hemmingerb5ed54e2010-11-15 06:38:13 +0000196static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev)
197{
Hong Zhiguo716ec052013-09-14 22:42:28 +0800198 return rcu_dereference(dev->rx_handler_data);
stephen hemmingerb5ed54e2010-11-15 06:38:13 +0000199}
200
Hong Zhiguo1fb17542013-09-14 22:42:27 +0800201static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev)
stephen hemmingerb5ed54e2010-11-15 06:38:13 +0000202{
Eric Dumazetec1e5612010-11-15 06:38:14 +0000203 return br_port_exists(dev) ?
204 rtnl_dereference(dev->rx_handler_data) : NULL;
stephen hemmingerb5ed54e2010-11-15 06:38:13 +0000205}
206
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207struct net_bridge
208{
209 spinlock_t lock;
210 struct list_head port_list;
211 struct net_device *dev;
stephen hemminger14bb4782010-03-02 13:32:09 +0000212
Li RongQing8f849852014-01-04 13:57:59 +0800213 struct pcpu_sw_netstats __percpu *stats;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214 spinlock_t hash_lock;
215 struct hlist_head hash[BR_HASH_SIZE];
Pablo Neira Ayuso34666d42014-09-18 11:29:03 +0200216#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
Simon Wunderlich4adf0af2008-07-30 16:27:55 -0700217 struct rtable fake_rtable;
Patrick McHardy4df53d82010-07-02 09:32:57 +0200218 bool nf_call_iptables;
219 bool nf_call_ip6tables;
220 bool nf_call_arptables;
Simon Wunderlich4adf0af2008-07-30 16:27:55 -0700221#endif
stephen hemminger515853c2011-10-03 18:14:46 +0000222 u16 group_fwd_mask;
Toshiaki Makitaf2808d22014-06-10 20:59:24 +0900223 u16 group_fwd_mask_required;
stephen hemminger515853c2011-10-03 18:14:46 +0000224
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225 /* STP */
226 bridge_id designated_root;
227 bridge_id bridge_id;
228 u32 root_path_cost;
229 unsigned long max_age;
230 unsigned long hello_time;
231 unsigned long forward_delay;
232 unsigned long bridge_max_age;
233 unsigned long ageing_time;
234 unsigned long bridge_hello_time;
235 unsigned long bridge_forward_delay;
236
Stephen Hemmingerfda93d92006-03-20 22:59:21 -0800237 u8 group_addr[ETH_ALEN];
Toshiaki Makita204177f2014-06-10 20:59:25 +0900238 bool group_addr_set;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700239 u16 root_port;
Stephen Hemminger9cde0702007-03-21 14:22:44 -0700240
241 enum {
242 BR_NO_STP, /* no spanning tree */
243 BR_KERNEL_STP, /* old STP in kernel */
244 BR_USER_STP, /* new RSTP in userspace */
245 } stp_enabled;
246
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247 unsigned char topology_change;
248 unsigned char topology_change_detected;
249
Herbert Xueb1d1642010-02-27 19:41:45 +0000250#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
251 unsigned char multicast_router;
252
253 u8 multicast_disabled:1;
Herbert Xuc5c23262012-04-13 02:37:42 +0000254 u8 multicast_querier:1;
Cong Wang1c8ad5b2013-05-21 21:52:54 +0000255 u8 multicast_query_use_ifaddr:1;
Herbert Xueb1d1642010-02-27 19:41:45 +0000256
257 u32 hash_elasticity;
258 u32 hash_max;
259
260 u32 multicast_last_member_count;
Herbert Xueb1d1642010-02-27 19:41:45 +0000261 u32 multicast_startup_query_count;
262
263 unsigned long multicast_last_member_interval;
264 unsigned long multicast_membership_interval;
265 unsigned long multicast_querier_interval;
266 unsigned long multicast_query_interval;
267 unsigned long multicast_query_response_interval;
268 unsigned long multicast_startup_query_interval;
269
270 spinlock_t multicast_lock;
Eric Dumazete8051682010-11-15 06:38:10 +0000271 struct net_bridge_mdb_htable __rcu *mdb;
Herbert Xueb1d1642010-02-27 19:41:45 +0000272 struct hlist_head router_list;
Herbert Xueb1d1642010-02-27 19:41:45 +0000273
274 struct timer_list multicast_router_timer;
Linus Lüssing90010b32014-06-07 18:26:26 +0200275 struct bridge_mcast_other_query ip4_other_query;
276 struct bridge_mcast_own_query ip4_own_query;
Linus Lüssingdc4eb532014-06-07 18:26:27 +0200277 struct bridge_mcast_querier ip4_querier;
Linus Lüssingcc0fdd82013-08-30 17:28:17 +0200278#if IS_ENABLED(CONFIG_IPV6)
Linus Lüssing90010b32014-06-07 18:26:26 +0200279 struct bridge_mcast_other_query ip6_other_query;
280 struct bridge_mcast_own_query ip6_own_query;
Linus Lüssingdc4eb532014-06-07 18:26:27 +0200281 struct bridge_mcast_querier ip6_querier;
Linus Lüssingcc0fdd82013-08-30 17:28:17 +0200282#endif /* IS_ENABLED(CONFIG_IPV6) */
Herbert Xueb1d1642010-02-27 19:41:45 +0000283#endif
284
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285 struct timer_list hello_timer;
286 struct timer_list tcn_timer;
287 struct timer_list topology_change_timer;
288 struct timer_list gc_timer;
Greg Kroah-Hartman43b98c42007-12-17 15:54:39 -0400289 struct kobject *ifobj;
Vlad Yaseviche028e4b2014-05-16 09:59:16 -0400290 u32 auto_cnt;
Vlad Yasevich243a2e62013-02-13 12:00:09 +0000291#ifdef CONFIG_BRIDGE_VLAN_FILTERING
292 u8 vlan_enabled;
Toshiaki Makita8580e212014-06-10 20:59:23 +0900293 __be16 vlan_proto;
Vlad Yasevich96a20d92014-10-03 11:29:16 -0400294 u16 default_pvid;
Vlad Yasevich243a2e62013-02-13 12:00:09 +0000295 struct net_port_vlans __rcu *vlan_info;
296#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297};
298
Herbert Xu68b7c892010-02-27 19:41:40 +0000299struct br_input_skb_cb {
300 struct net_device *brdev;
Herbert Xu93fdd472014-10-05 12:00:22 +0800301
YOSHIFUJI Hideaki / 吉藤英明32dec5d2010-03-15 21:51:18 +0000302#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
Herbert Xueb1d1642010-02-27 19:41:45 +0000303 int igmp;
304 int mrouters_only;
YOSHIFUJI Hideaki / 吉藤英明32dec5d2010-03-15 21:51:18 +0000305#endif
Herbert Xu93fdd472014-10-05 12:00:22 +0800306
307 u16 frag_max_size;
Jouni Malinen842a9ae2015-03-04 12:54:21 +0200308 bool proxyarp_replied;
Herbert Xu93fdd472014-10-05 12:00:22 +0800309
Vlad Yasevich20adfa12014-09-12 16:26:16 -0400310#ifdef CONFIG_BRIDGE_VLAN_FILTERING
311 bool vlan_filtered;
312#endif
Herbert Xu68b7c892010-02-27 19:41:40 +0000313};
314
315#define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb)
316
YOSHIFUJI Hideaki / 吉藤英明32dec5d2010-03-15 21:51:18 +0000317#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
318# define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only)
319#else
320# define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0)
321#endif
322
stephen hemminger28a16c92010-05-10 09:31:09 +0000323#define br_printk(level, br, format, args...) \
324 printk(level "%s: " format, (br)->dev->name, ##args)
325
326#define br_err(__br, format, args...) \
327 br_printk(KERN_ERR, __br, format, ##args)
328#define br_warn(__br, format, args...) \
329 br_printk(KERN_WARNING, __br, format, ##args)
330#define br_notice(__br, format, args...) \
331 br_printk(KERN_NOTICE, __br, format, ##args)
332#define br_info(__br, format, args...) \
333 br_printk(KERN_INFO, __br, format, ##args)
334
335#define br_debug(br, format, args...) \
336 pr_debug("%s: " format, (br)->dev->name, ##args)
337
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338/* called under bridge lock */
339static inline int br_is_root_bridge(const struct net_bridge *br)
340{
341 return !memcmp(&br->bridge_id, &br->designated_root, 8);
342}
343
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344/* br_device.c */
Joe Perches348662a2013-10-18 13:48:22 -0700345void br_dev_setup(struct net_device *dev);
346void br_dev_delete(struct net_device *dev, struct list_head *list);
347netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev);
stephen hemmingercfb478d2010-05-10 09:31:08 +0000348#ifdef CONFIG_NET_POLL_CONTROLLER
Herbert Xu91d2c342010-06-10 16:12:50 +0000349static inline void br_netpoll_send_skb(const struct net_bridge_port *p,
350 struct sk_buff *skb)
351{
352 struct netpoll *np = p->np;
353
354 if (np)
355 netpoll_send_skb(np, skb);
356}
357
Eric W. Biedermana8779ec2014-03-27 15:36:38 -0700358int br_netpoll_enable(struct net_bridge_port *p);
Joe Perches348662a2013-10-18 13:48:22 -0700359void br_netpoll_disable(struct net_bridge_port *p);
Herbert Xu91d2c342010-06-10 16:12:50 +0000360#else
Herbert Xu9f70b0f2010-06-15 21:43:48 -0700361static inline void br_netpoll_send_skb(const struct net_bridge_port *p,
Herbert Xu91d2c342010-06-10 16:12:50 +0000362 struct sk_buff *skb)
363{
364}
365
Eric W. Biedermana8779ec2014-03-27 15:36:38 -0700366static inline int br_netpoll_enable(struct net_bridge_port *p)
Herbert Xu91d2c342010-06-10 16:12:50 +0000367{
368 return 0;
369}
370
371static inline void br_netpoll_disable(struct net_bridge_port *p)
372{
373}
stephen hemmingercfb478d2010-05-10 09:31:08 +0000374#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375
376/* br_fdb.c */
Joe Perches348662a2013-10-18 13:48:22 -0700377int br_fdb_init(void);
378void br_fdb_fini(void);
379void br_fdb_flush(struct net_bridge *br);
Toshiaki Makita424bb9c2014-02-07 16:48:25 +0900380void br_fdb_find_delete_local(struct net_bridge *br,
381 const struct net_bridge_port *p,
382 const unsigned char *addr, u16 vid);
Joe Perches348662a2013-10-18 13:48:22 -0700383void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr);
384void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr);
385void br_fdb_cleanup(unsigned long arg);
386void br_fdb_delete_by_port(struct net_bridge *br,
387 const struct net_bridge_port *p, int do_all);
388struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br,
389 const unsigned char *addr, __u16 vid);
390int br_fdb_test_addr(struct net_device *dev, unsigned char *addr);
391int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count,
392 unsigned long off);
393int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source,
394 const unsigned char *addr, u16 vid);
395void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source,
Toshiaki Makitaa5642ab2014-02-07 16:48:18 +0900396 const unsigned char *addr, u16 vid, bool added_by_user);
John Fastabend77162022012-04-15 06:43:56 +0000397
Joe Perches348662a2013-10-18 13:48:22 -0700398int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[],
Jiri Pirkof6f64242014-11-28 14:34:15 +0100399 struct net_device *dev, const unsigned char *addr, u16 vid);
Joe Perches348662a2013-10-18 13:48:22 -0700400int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev,
Jiri Pirkof6f64242014-11-28 14:34:15 +0100401 const unsigned char *addr, u16 vid, u16 nlh_flags);
Joe Perches348662a2013-10-18 13:48:22 -0700402int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
Jamal Hadi Salim5d5eacb2014-07-10 07:01:58 -0400403 struct net_device *dev, struct net_device *fdev, int idx);
Vlad Yasevich8db24af2014-05-16 09:59:17 -0400404int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p);
405void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p);
Jiri Pirko3aeb6612015-01-15 23:49:37 +0100406int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p,
407 const unsigned char *addr, u16 vid);
408int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p,
409 const unsigned char *addr, u16 vid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410
411/* br_forward.c */
Joe Perches348662a2013-10-18 13:48:22 -0700412void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb);
David Miller7026b1d2015-04-05 22:19:04 -0400413int br_dev_queue_push_xmit(struct sock *sk, struct sk_buff *skb);
Joe Perches348662a2013-10-18 13:48:22 -0700414void br_forward(const struct net_bridge_port *to,
Michael Braun7f7708f2010-03-16 00:26:22 -0700415 struct sk_buff *skb, struct sk_buff *skb0);
David Miller7026b1d2015-04-05 22:19:04 -0400416int br_forward_finish(struct sock *sk, struct sk_buff *skb);
Joe Perches348662a2013-10-18 13:48:22 -0700417void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast);
418void br_flood_forward(struct net_bridge *br, struct sk_buff *skb,
419 struct sk_buff *skb2, bool unicast);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420
421/* br_if.c */
Joe Perches348662a2013-10-18 13:48:22 -0700422void br_port_carrier_check(struct net_bridge_port *p);
423int br_add_bridge(struct net *net, const char *name);
424int br_del_bridge(struct net *net, const char *name);
Joe Perches348662a2013-10-18 13:48:22 -0700425int br_add_if(struct net_bridge *br, struct net_device *dev);
426int br_del_if(struct net_bridge *br, struct net_device *dev);
427int br_min_mtu(const struct net_bridge *br);
428netdev_features_t br_features_recompute(struct net_bridge *br,
429 netdev_features_t features);
Vlad Yaseviche028e4b2014-05-16 09:59:16 -0400430void br_port_flags_change(struct net_bridge_port *port, unsigned long mask);
Vlad Yasevich2796d0c2014-05-16 09:59:20 -0400431void br_manage_promisc(struct net_bridge *br);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432
433/* br_input.c */
David Miller7026b1d2015-04-05 22:19:04 -0400434int br_handle_frame_finish(struct sock *sk, struct sk_buff *skb);
Joe Perches348662a2013-10-18 13:48:22 -0700435rx_handler_result_t br_handle_frame(struct sk_buff **pskb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436
Jiri Pirko859828c2013-12-05 16:27:37 +0100437static inline bool br_rx_handler_check_rcu(const struct net_device *dev)
438{
439 return rcu_dereference(dev->rx_handler) == br_handle_frame;
440}
441
442static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev)
443{
444 return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL;
445}
446
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447/* br_ioctl.c */
Joe Perches348662a2013-10-18 13:48:22 -0700448int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
449int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd,
450 void __user *arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700451
Herbert Xueb1d1642010-02-27 19:41:45 +0000452/* br_multicast.c */
453#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
Cong Wang2ce297f2012-12-10 02:15:35 +0000454extern unsigned int br_mdb_rehash_seq;
Joe Perches348662a2013-10-18 13:48:22 -0700455int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port,
David S. Miller394efd12013-11-04 13:48:30 -0500456 struct sk_buff *skb, u16 vid);
Joe Perches348662a2013-10-18 13:48:22 -0700457struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
458 struct sk_buff *skb, u16 vid);
459void br_multicast_add_port(struct net_bridge_port *port);
460void br_multicast_del_port(struct net_bridge_port *port);
461void br_multicast_enable_port(struct net_bridge_port *port);
462void br_multicast_disable_port(struct net_bridge_port *port);
463void br_multicast_init(struct net_bridge *br);
464void br_multicast_open(struct net_bridge *br);
465void br_multicast_stop(struct net_bridge *br);
466void br_multicast_deliver(struct net_bridge_mdb_entry *mdst,
467 struct sk_buff *skb);
468void br_multicast_forward(struct net_bridge_mdb_entry *mdst,
469 struct sk_buff *skb, struct sk_buff *skb2);
470int br_multicast_set_router(struct net_bridge *br, unsigned long val);
471int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val);
472int br_multicast_toggle(struct net_bridge *br, unsigned long val);
473int br_multicast_set_querier(struct net_bridge *br, unsigned long val);
474int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val);
475struct net_bridge_mdb_entry *
476br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst);
477struct net_bridge_mdb_entry *
478br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port,
479 struct br_ip *group);
480void br_multicast_free_pg(struct rcu_head *head);
481struct net_bridge_port_group *
482br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group,
483 struct net_bridge_port_group __rcu *next,
484 unsigned char state);
485void br_mdb_init(void);
486void br_mdb_uninit(void);
487void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port,
488 struct br_ip *group, int type);
Sridhar Samudrala85b35262010-03-01 09:53:04 +0000489
Cong Wangcfd56752012-12-11 22:23:08 +0000490#define mlock_dereference(X, br) \
491 rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock))
492
Sridhar Samudrala85b35262010-03-01 09:53:04 +0000493static inline bool br_multicast_is_router(struct net_bridge *br)
494{
495 return br->multicast_router == 2 ||
496 (br->multicast_router == 1 &&
497 timer_pending(&br->multicast_router_timer));
498}
Linus Lüssingb00589a2013-08-01 01:06:20 +0200499
Linus Lüssingcc0fdd82013-08-30 17:28:17 +0200500static inline bool
501__br_multicast_querier_exists(struct net_bridge *br,
Linus Lüssing90010b32014-06-07 18:26:26 +0200502 struct bridge_mcast_other_query *querier)
Linus Lüssingb00589a2013-08-01 01:06:20 +0200503{
Linus Lüssingcc0fdd82013-08-30 17:28:17 +0200504 return time_is_before_jiffies(querier->delay_time) &&
505 (br->multicast_querier || timer_pending(&querier->timer));
506}
507
508static inline bool br_multicast_querier_exists(struct net_bridge *br,
509 struct ethhdr *eth)
510{
511 switch (eth->h_proto) {
512 case (htons(ETH_P_IP)):
Linus Lüssing90010b32014-06-07 18:26:26 +0200513 return __br_multicast_querier_exists(br, &br->ip4_other_query);
Linus Lüssingcc0fdd82013-08-30 17:28:17 +0200514#if IS_ENABLED(CONFIG_IPV6)
515 case (htons(ETH_P_IPV6)):
Linus Lüssing90010b32014-06-07 18:26:26 +0200516 return __br_multicast_querier_exists(br, &br->ip6_other_query);
Linus Lüssingcc0fdd82013-08-30 17:28:17 +0200517#endif
518 default:
519 return false;
520 }
Linus Lüssingb00589a2013-08-01 01:06:20 +0200521}
Herbert Xueb1d1642010-02-27 19:41:45 +0000522#else
523static inline int br_multicast_rcv(struct net_bridge *br,
524 struct net_bridge_port *port,
Vlad Yasevich06499092013-10-28 15:45:07 -0400525 struct sk_buff *skb,
526 u16 vid)
Herbert Xueb1d1642010-02-27 19:41:45 +0000527{
528 return 0;
529}
530
531static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
Cong Wangfbca58a2013-03-07 03:05:33 +0000532 struct sk_buff *skb, u16 vid)
Herbert Xueb1d1642010-02-27 19:41:45 +0000533{
534 return NULL;
535}
536
537static inline void br_multicast_add_port(struct net_bridge_port *port)
538{
539}
540
541static inline void br_multicast_del_port(struct net_bridge_port *port)
542{
543}
544
545static inline void br_multicast_enable_port(struct net_bridge_port *port)
546{
547}
548
549static inline void br_multicast_disable_port(struct net_bridge_port *port)
550{
551}
552
553static inline void br_multicast_init(struct net_bridge *br)
554{
555}
556
557static inline void br_multicast_open(struct net_bridge *br)
558{
559}
560
561static inline void br_multicast_stop(struct net_bridge *br)
562{
563}
Herbert Xu5cb5e942010-02-27 19:41:46 +0000564
565static inline void br_multicast_deliver(struct net_bridge_mdb_entry *mdst,
566 struct sk_buff *skb)
567{
568}
569
570static inline void br_multicast_forward(struct net_bridge_mdb_entry *mdst,
571 struct sk_buff *skb,
572 struct sk_buff *skb2)
573{
574}
Herbert Xueb1d1642010-02-27 19:41:45 +0000575static inline bool br_multicast_is_router(struct net_bridge *br)
576{
Sridhar Samudrala85b35262010-03-01 09:53:04 +0000577 return 0;
Herbert Xueb1d1642010-02-27 19:41:45 +0000578}
Linus Lüssingcc0fdd82013-08-30 17:28:17 +0200579static inline bool br_multicast_querier_exists(struct net_bridge *br,
580 struct ethhdr *eth)
Linus Lüssingb00589a2013-08-01 01:06:20 +0200581{
582 return false;
583}
Rami Rosenfdb184d2013-01-03 13:30:43 +0200584static inline void br_mdb_init(void)
585{
586}
587static inline void br_mdb_uninit(void)
588{
589}
Sridhar Samudrala85b35262010-03-01 09:53:04 +0000590#endif
Herbert Xueb1d1642010-02-27 19:41:45 +0000591
Vlad Yasevich243a2e62013-02-13 12:00:09 +0000592/* br_vlan.c */
593#ifdef CONFIG_BRIDGE_VLAN_FILTERING
Joe Perches348662a2013-10-18 13:48:22 -0700594bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v,
595 struct sk_buff *skb, u16 *vid);
596bool br_allowed_egress(struct net_bridge *br, const struct net_port_vlans *v,
597 const struct sk_buff *skb);
Toshiaki Makitae0d79682014-05-26 15:15:53 +0900598bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid);
Joe Perches348662a2013-10-18 13:48:22 -0700599struct sk_buff *br_handle_vlan(struct net_bridge *br,
600 const struct net_port_vlans *v,
601 struct sk_buff *skb);
602int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags);
603int br_vlan_delete(struct net_bridge *br, u16 vid);
604void br_vlan_flush(struct net_bridge *br);
Toshiaki Makita2b292fb2014-02-07 16:48:22 +0900605bool br_vlan_find(struct net_bridge *br, u16 vid);
Toshiaki Makita204177f2014-06-10 20:59:25 +0900606void br_recalculate_fwd_mask(struct net_bridge *br);
Joe Perches348662a2013-10-18 13:48:22 -0700607int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val);
Toshiaki Makita204177f2014-06-10 20:59:25 +0900608int br_vlan_set_proto(struct net_bridge *br, unsigned long val);
Vlad Yasevich5be5a2d2014-10-03 11:29:18 -0400609int br_vlan_init(struct net_bridge *br);
Vlad Yasevich96a20d92014-10-03 11:29:16 -0400610int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val);
Joe Perches348662a2013-10-18 13:48:22 -0700611int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags);
612int nbp_vlan_delete(struct net_bridge_port *port, u16 vid);
613void nbp_vlan_flush(struct net_bridge_port *port);
614bool nbp_vlan_find(struct net_bridge_port *port, u16 vid);
Vlad Yasevich5be5a2d2014-10-03 11:29:18 -0400615int nbp_vlan_init(struct net_bridge_port *port);
Vlad Yasevicha37b85c2013-02-13 12:00:10 +0000616
617static inline struct net_port_vlans *br_get_vlan_info(
618 const struct net_bridge *br)
619{
Vlad Yasevich1690be62013-02-13 12:00:18 +0000620 return rcu_dereference_rtnl(br->vlan_info);
Vlad Yasevicha37b85c2013-02-13 12:00:10 +0000621}
622
623static inline struct net_port_vlans *nbp_get_vlan_info(
624 const struct net_bridge_port *p)
625{
Vlad Yasevich1690be62013-02-13 12:00:18 +0000626 return rcu_dereference_rtnl(p->vlan_info);
Vlad Yasevicha37b85c2013-02-13 12:00:10 +0000627}
628
629/* Since bridge now depends on 8021Q module, but the time bridge sees the
630 * skb, the vlan tag will always be present if the frame was tagged.
631 */
632static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid)
633{
634 int err = 0;
635
Jiri Pirkodf8a39d2015-01-13 17:13:44 +0100636 if (skb_vlan_tag_present(skb))
637 *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK;
Vlad Yasevicha37b85c2013-02-13 12:00:10 +0000638 else {
639 *vid = 0;
640 err = -EINVAL;
641 }
642
643 return err;
644}
Vlad Yasevich78851982013-02-13 12:00:14 +0000645
646static inline u16 br_get_pvid(const struct net_port_vlans *v)
647{
Vlad Yasevich5be5a2d2014-10-03 11:29:18 -0400648 if (!v)
649 return 0;
650
Vlad Yasevich78851982013-02-13 12:00:14 +0000651 smp_rmb();
Vlad Yasevich3df6bf42014-10-03 11:29:17 -0400652 return v->pvid;
Vlad Yasevich78851982013-02-13 12:00:14 +0000653}
654
Vlad Yasevich2796d0c2014-05-16 09:59:20 -0400655static inline int br_vlan_enabled(struct net_bridge *br)
656{
657 return br->vlan_enabled;
658}
Vlad Yasevich243a2e62013-02-13 12:00:09 +0000659#else
Vlad Yasevicha37b85c2013-02-13 12:00:10 +0000660static inline bool br_allowed_ingress(struct net_bridge *br,
661 struct net_port_vlans *v,
Vlad Yasevich78851982013-02-13 12:00:14 +0000662 struct sk_buff *skb,
663 u16 *vid)
Vlad Yasevicha37b85c2013-02-13 12:00:10 +0000664{
665 return true;
666}
667
Vlad Yasevich85f46c62013-02-13 12:00:11 +0000668static inline bool br_allowed_egress(struct net_bridge *br,
669 const struct net_port_vlans *v,
670 const struct sk_buff *skb)
671{
672 return true;
673}
674
Toshiaki Makitae0d79682014-05-26 15:15:53 +0900675static inline bool br_should_learn(struct net_bridge_port *p,
676 struct sk_buff *skb, u16 *vid)
677{
678 return true;
679}
680
Vlad Yasevich78851982013-02-13 12:00:14 +0000681static inline struct sk_buff *br_handle_vlan(struct net_bridge *br,
682 const struct net_port_vlans *v,
683 struct sk_buff *skb)
684{
685 return skb;
686}
687
Vlad Yasevich552406c2013-02-13 12:00:15 +0000688static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags)
Vlad Yasevich243a2e62013-02-13 12:00:09 +0000689{
690 return -EOPNOTSUPP;
691}
692
693static inline int br_vlan_delete(struct net_bridge *br, u16 vid)
694{
695 return -EOPNOTSUPP;
696}
697
698static inline void br_vlan_flush(struct net_bridge *br)
699{
700}
701
Toshiaki Makita2b292fb2014-02-07 16:48:22 +0900702static inline bool br_vlan_find(struct net_bridge *br, u16 vid)
703{
704 return false;
705}
706
Toshiaki Makita204177f2014-06-10 20:59:25 +0900707static inline void br_recalculate_fwd_mask(struct net_bridge *br)
708{
709}
710
Vlad Yasevich5be5a2d2014-10-03 11:29:18 -0400711static inline int br_vlan_init(struct net_bridge *br)
Toshiaki Makita8580e212014-06-10 20:59:23 +0900712{
Vlad Yasevich5be5a2d2014-10-03 11:29:18 -0400713 return 0;
Toshiaki Makita8580e212014-06-10 20:59:23 +0900714}
715
Vlad Yasevich552406c2013-02-13 12:00:15 +0000716static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags)
Vlad Yasevich243a2e62013-02-13 12:00:09 +0000717{
718 return -EOPNOTSUPP;
719}
720
721static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid)
722{
723 return -EOPNOTSUPP;
724}
725
726static inline void nbp_vlan_flush(struct net_bridge_port *port)
727{
728}
729
Vlad Yasevicha37b85c2013-02-13 12:00:10 +0000730static inline struct net_port_vlans *br_get_vlan_info(
731 const struct net_bridge *br)
732{
733 return NULL;
734}
735static inline struct net_port_vlans *nbp_get_vlan_info(
736 const struct net_bridge_port *p)
737{
738 return NULL;
739}
740
Vlad Yasevichbc9a25d2013-02-13 12:00:19 +0000741static inline bool nbp_vlan_find(struct net_bridge_port *port, u16 vid)
742{
743 return false;
744}
745
Vlad Yasevich5be5a2d2014-10-03 11:29:18 -0400746static inline int nbp_vlan_init(struct net_bridge_port *port)
747{
748 return 0;
749}
750
Vlad Yasevich78851982013-02-13 12:00:14 +0000751static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag)
Vlad Yasevicha37b85c2013-02-13 12:00:10 +0000752{
753 return 0;
754}
Vlad Yasevich78851982013-02-13 12:00:14 +0000755static inline u16 br_get_pvid(const struct net_port_vlans *v)
756{
Vlad Yasevich3df6bf42014-10-03 11:29:17 -0400757 return 0;
Vlad Yasevich78851982013-02-13 12:00:14 +0000758}
Vlad Yasevich2796d0c2014-05-16 09:59:20 -0400759
Alexei Starovoitovd4f0e092014-05-18 10:30:28 -0700760static inline int br_vlan_enabled(struct net_bridge *br)
Vlad Yasevich2796d0c2014-05-16 09:59:20 -0400761{
762 return 0;
763}
Vlad Yasevich243a2e62013-02-13 12:00:09 +0000764#endif
765
Pablo Neira Ayuso1a4ba642015-03-10 10:27:18 +0100766struct nf_br_ops {
767 int (*br_dev_xmit_hook)(struct sk_buff *skb);
768};
769extern const struct nf_br_ops __rcu *nf_br_ops;
770
Linus Torvalds1da177e2005-04-16 15:20:36 -0700771/* br_netfilter.c */
Pablo Neira Ayuso34666d42014-09-18 11:29:03 +0200772#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
773int br_nf_core_init(void);
774void br_nf_core_fini(void);
Joe Perches348662a2013-10-18 13:48:22 -0700775void br_netfilter_rtable_init(struct net_bridge *);
Stephen Hemmingerc0909712006-05-25 15:59:33 -0700776#else
Pablo Neira Ayuso34666d42014-09-18 11:29:03 +0200777static inline int br_nf_core_init(void) { return 0; }
778static inline void br_nf_core_fini(void) {}
Simon Wunderlich4adf0af2008-07-30 16:27:55 -0700779#define br_netfilter_rtable_init(x)
Stephen Hemmingerc0909712006-05-25 15:59:33 -0700780#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700781
782/* br_stp.c */
Joe Perches348662a2013-10-18 13:48:22 -0700783void br_log_state(const struct net_bridge_port *p);
Florian Fainelli775dd692014-09-30 16:13:19 -0700784void br_set_state(struct net_bridge_port *p, unsigned int state);
Joe Perches348662a2013-10-18 13:48:22 -0700785struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no);
786void br_init_port(struct net_bridge_port *p);
787void br_become_designated_port(struct net_bridge_port *p);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700788
Joe Perches348662a2013-10-18 13:48:22 -0700789void __br_set_forward_delay(struct net_bridge *br, unsigned long t);
790int br_set_forward_delay(struct net_bridge *br, unsigned long x);
791int br_set_hello_time(struct net_bridge *br, unsigned long x);
792int br_set_max_age(struct net_bridge *br, unsigned long x);
stephen hemminger14f98f22011-04-04 14:03:33 +0000793
794
Linus Torvalds1da177e2005-04-16 15:20:36 -0700795/* br_stp_if.c */
Joe Perches348662a2013-10-18 13:48:22 -0700796void br_stp_enable_bridge(struct net_bridge *br);
797void br_stp_disable_bridge(struct net_bridge *br);
798void br_stp_set_enabled(struct net_bridge *br, unsigned long val);
799void br_stp_enable_port(struct net_bridge_port *p);
800void br_stp_disable_port(struct net_bridge_port *p);
801bool br_stp_recalculate_bridge_id(struct net_bridge *br);
802void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a);
803void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio);
804int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio);
805int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost);
806ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700807
808/* br_stp_bpdu.c */
Patrick McHardy7c85fbf2008-07-05 21:25:56 -0700809struct stp_proto;
Joe Perches348662a2013-10-18 13:48:22 -0700810void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb,
811 struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700812
813/* br_stp_timer.c */
Joe Perches348662a2013-10-18 13:48:22 -0700814void br_stp_timer_init(struct net_bridge *br);
815void br_stp_port_timer_init(struct net_bridge_port *p);
816unsigned long br_timer_value(const struct timer_list *timer);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700817
818/* br.c */
Igor Maraviće6373c42011-12-12 02:58:25 +0000819#if IS_ENABLED(CONFIG_ATM_LANE)
Michał Mirosławda678292009-06-05 05:35:28 +0000820extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr);
821#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700822
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700823/* br_netlink.c */
stephen hemminger149ddd82012-06-26 05:48:45 +0000824extern struct rtnl_link_ops br_link_ops;
Joe Perches348662a2013-10-18 13:48:22 -0700825int br_netlink_init(void);
826void br_netlink_fini(void);
827void br_ifinfo_notify(int event, struct net_bridge_port *port);
Roopa Prabhuadd511b2015-01-29 22:40:12 -0800828int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags);
829int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags);
Joe Perches348662a2013-10-18 13:48:22 -0700830int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev,
Nicolas Dichtel46c264d2015-04-28 18:33:49 +0200831 u32 filter_mask, int nlflags);
Stephen Hemminger11dc1f32006-05-25 16:00:12 -0700832
Linus Torvalds1da177e2005-04-16 15:20:36 -0700833#ifdef CONFIG_SYSFS
834/* br_sysfs_if.c */
Emese Revfy52cf25d2010-01-19 02:58:23 +0100835extern const struct sysfs_ops brport_sysfs_ops;
Joe Perches348662a2013-10-18 13:48:22 -0700836int br_sysfs_addif(struct net_bridge_port *p);
837int br_sysfs_renameif(struct net_bridge_port *p);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700838
839/* br_sysfs_br.c */
Joe Perches348662a2013-10-18 13:48:22 -0700840int br_sysfs_addbr(struct net_device *dev);
841void br_sysfs_delbr(struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700842
843#else
844
Lee Jones0cb2bbb2012-11-03 23:02:30 +0100845static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; }
846static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; }
847static inline int br_sysfs_addbr(struct net_device *dev) { return 0; }
848static inline void br_sysfs_delbr(struct net_device *dev) { return; }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700849#endif /* CONFIG_SYSFS */
850
851#endif