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1 /*
2  *	Linux ethernet bridge
3  *
4  *	Authors:
5  *	Lennert Buytenhek		<buytenh@gnu.org>
6  *
7  *	$Id: if_bridge.h,v 1.1 2000/02/18 16:47:01 davem Exp $
8  *
9  *	This program is free software; you can redistribute it and/or
10  *	modify it under the terms of the GNU General Public License
11  *	as published by the Free Software Foundation; either version
12  *	2 of the License, or (at your option) any later version.
13  */
14 
15 #ifndef _LINUX_IF_BRIDGE_H
16 #define _LINUX_IF_BRIDGE_H
17 
18 #include <linux/types.h>
19 
20 #define SYSFS_BRIDGE_ATTR	"bridge"
21 #define SYSFS_BRIDGE_FDB	"brforward"
22 #define SYSFS_BRIDGE_PORT_SUBDIR "brif"
23 #define SYSFS_BRIDGE_PORT_ATTR	"brport"
24 #define SYSFS_BRIDGE_PORT_LINK	"bridge"
25 
26 #define BRCTL_VERSION 1
27 
28 #define BRCTL_GET_VERSION 0
29 #define BRCTL_GET_BRIDGES 1
30 #define BRCTL_ADD_BRIDGE 2
31 #define BRCTL_DEL_BRIDGE 3
32 #define BRCTL_ADD_IF 4
33 #define BRCTL_DEL_IF 5
34 #define BRCTL_GET_BRIDGE_INFO 6
35 #define BRCTL_GET_PORT_LIST 7
36 #define BRCTL_SET_BRIDGE_FORWARD_DELAY 8
37 #define BRCTL_SET_BRIDGE_HELLO_TIME 9
38 #define BRCTL_SET_BRIDGE_MAX_AGE 10
39 #define BRCTL_SET_AGEING_TIME 11
40 #define BRCTL_SET_GC_INTERVAL 12
41 #define BRCTL_GET_PORT_INFO 13
42 #define BRCTL_SET_BRIDGE_STP_STATE 14
43 #define BRCTL_SET_BRIDGE_PRIORITY 15
44 #define BRCTL_SET_PORT_PRIORITY 16
45 #define BRCTL_SET_PATH_COST 17
46 #define BRCTL_GET_FDB_ENTRIES 18
47 
48 #define BR_STATE_DISABLED 0
49 #define BR_STATE_LISTENING 1
50 #define BR_STATE_LEARNING 2
51 #define BR_STATE_FORWARDING 3
52 #define BR_STATE_BLOCKING 4
53 
54 struct __bridge_info
55 {
56 	__u64 designated_root;
57 	__u64 bridge_id;
58 	__u32 root_path_cost;
59 	__u32 max_age;
60 	__u32 hello_time;
61 	__u32 forward_delay;
62 	__u32 bridge_max_age;
63 	__u32 bridge_hello_time;
64 	__u32 bridge_forward_delay;
65 	__u8 topology_change;
66 	__u8 topology_change_detected;
67 	__u8 root_port;
68 	__u8 stp_enabled;
69 	__u32 ageing_time;
70 	__u32 gc_interval;
71 	__u32 hello_timer_value;
72 	__u32 tcn_timer_value;
73 	__u32 topology_change_timer_value;
74 	__u32 gc_timer_value;
75 };
76 
77 struct __port_info
78 {
79 	__u64 designated_root;
80 	__u64 designated_bridge;
81 	__u16 port_id;
82 	__u16 designated_port;
83 	__u32 path_cost;
84 	__u32 designated_cost;
85 	__u8 state;
86 	__u8 top_change_ack;
87 	__u8 config_pending;
88 	__u8 unused0;
89 	__u32 message_age_timer_value;
90 	__u32 forward_delay_timer_value;
91 	__u32 hold_timer_value;
92 };
93 
94 struct __fdb_entry
95 {
96 	__u8 mac_addr[6];
97 	__u8 port_no;
98 	__u8 is_local;
99 	__u32 ageing_timer_value;
100 	__u32 unused;
101 };
102 
103 #ifdef __KERNEL__
104 
105 #include <linux/netdevice.h>
106 
107 extern void brioctl_set(int (*ioctl_hook)(unsigned int, void __user *));
108 extern int (*br_handle_frame_hook)(struct net_bridge_port *p, struct sk_buff **pskb);
109 extern int (*br_should_route_hook)(struct sk_buff **pskb);
110 
111 #endif
112 
113 #endif
114