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1/*
2 * Linux ethernet bridge
3 *
4 * Authors:
5 * Lennert Buytenhek <buytenh@gnu.org>
6 *
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 _UAPI_LINUX_IF_BRIDGE_H
14#define _UAPI_LINUX_IF_BRIDGE_H
15
16#include <linux/types.h>
17#include <linux/if_ether.h>
18#include <linux/in6.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
54struct __bridge_info {
55 __u64 designated_root;
56 __u64 bridge_id;
57 __u32 root_path_cost;
58 __u32 max_age;
59 __u32 hello_time;
60 __u32 forward_delay;
61 __u32 bridge_max_age;
62 __u32 bridge_hello_time;
63 __u32 bridge_forward_delay;
64 __u8 topology_change;
65 __u8 topology_change_detected;
66 __u8 root_port;
67 __u8 stp_enabled;
68 __u32 ageing_time;
69 __u32 gc_interval;
70 __u32 hello_timer_value;
71 __u32 tcn_timer_value;
72 __u32 topology_change_timer_value;
73 __u32 gc_timer_value;
74};
75
76struct __port_info {
77 __u64 designated_root;
78 __u64 designated_bridge;
79 __u16 port_id;
80 __u16 designated_port;
81 __u32 path_cost;
82 __u32 designated_cost;
83 __u8 state;
84 __u8 top_change_ack;
85 __u8 config_pending;
86 __u8 unused0;
87 __u32 message_age_timer_value;
88 __u32 forward_delay_timer_value;
89 __u32 hold_timer_value;
90};
91
92struct __fdb_entry {
93 __u8 mac_addr[ETH_ALEN];
94 __u8 port_no;
95 __u8 is_local;
96 __u32 ageing_timer_value;
97 __u8 port_hi;
98 __u8 pad0;
99 __u16 unused;
100};
101
102/* Bridge Flags */
103#define BRIDGE_FLAGS_MASTER 1 /* Bridge command to/from master */
104#define BRIDGE_FLAGS_SELF 2 /* Bridge command to/from lowerdev */
105
106#define BRIDGE_MODE_VEB 0 /* Default loopback mode */
107#define BRIDGE_MODE_VEPA 1 /* 802.1Qbg defined VEPA mode */
108#define BRIDGE_MODE_UNDEF 0xFFFF /* mode undefined */
109
110/* Bridge management nested attributes
111 * [IFLA_AF_SPEC] = {
112 * [IFLA_BRIDGE_FLAGS]
113 * [IFLA_BRIDGE_MODE]
114 * [IFLA_BRIDGE_VLAN_INFO]
115 * }
116 */
117enum {
118 IFLA_BRIDGE_FLAGS,
119 IFLA_BRIDGE_MODE,
120 IFLA_BRIDGE_VLAN_INFO,
121 __IFLA_BRIDGE_MAX,
122};
123#define IFLA_BRIDGE_MAX (__IFLA_BRIDGE_MAX - 1)
124
125#define BRIDGE_VLAN_INFO_MASTER (1<<0) /* Operate on Bridge device as well */
126#define BRIDGE_VLAN_INFO_PVID (1<<1) /* VLAN is PVID, ingress untagged */
127#define BRIDGE_VLAN_INFO_UNTAGGED (1<<2) /* VLAN egresses untagged */
128
129struct bridge_vlan_info {
130 __u16 flags;
131 __u16 vid;
132};
133
134/* Bridge multicast database attributes
135 * [MDBA_MDB] = {
136 * [MDBA_MDB_ENTRY] = {
137 * [MDBA_MDB_ENTRY_INFO]
138 * }
139 * }
140 * [MDBA_ROUTER] = {
141 * [MDBA_ROUTER_PORT]
142 * }
143 */
144enum {
145 MDBA_UNSPEC,
146 MDBA_MDB,
147 MDBA_ROUTER,
148 __MDBA_MAX,
149};
150#define MDBA_MAX (__MDBA_MAX - 1)
151
152enum {
153 MDBA_MDB_UNSPEC,
154 MDBA_MDB_ENTRY,
155 __MDBA_MDB_MAX,
156};
157#define MDBA_MDB_MAX (__MDBA_MDB_MAX - 1)
158
159enum {
160 MDBA_MDB_ENTRY_UNSPEC,
161 MDBA_MDB_ENTRY_INFO,
162 __MDBA_MDB_ENTRY_MAX,
163};
164#define MDBA_MDB_ENTRY_MAX (__MDBA_MDB_ENTRY_MAX - 1)
165
166enum {
167 MDBA_ROUTER_UNSPEC,
168 MDBA_ROUTER_PORT,
169 __MDBA_ROUTER_MAX,
170};
171#define MDBA_ROUTER_MAX (__MDBA_ROUTER_MAX - 1)
172
173struct br_port_msg {
174 __u8 family;
175 __u32 ifindex;
176};
177
178struct br_mdb_entry {
179 __u32 ifindex;
180#define MDB_TEMPORARY 0
181#define MDB_PERMANENT 1
182 __u8 state;
183 struct {
184 union {
185 __be32 ip4;
186 struct in6_addr ip6;
187 } u;
188 __be16 proto;
189 } addr;
190};
191
192enum {
193 MDBA_SET_ENTRY_UNSPEC,
194 MDBA_SET_ENTRY,
195 __MDBA_SET_ENTRY_MAX,
196};
197#define MDBA_SET_ENTRY_MAX (__MDBA_SET_ENTRY_MAX - 1)
198
199#endif /* _UAPI_LINUX_IF_BRIDGE_H */