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
19#define SYSFS_BRIDGE_ATTR	"bridge"
20#define SYSFS_BRIDGE_FDB	"brforward"
21#define SYSFS_BRIDGE_PORT_SUBDIR "brif"
22#define SYSFS_BRIDGE_PORT_ATTR	"brport"
23#define SYSFS_BRIDGE_PORT_LINK	"bridge"
24
25#define BRCTL_VERSION 1
26
27#define BRCTL_GET_VERSION 0
28#define BRCTL_GET_BRIDGES 1
29#define BRCTL_ADD_BRIDGE 2
30#define BRCTL_DEL_BRIDGE 3
31#define BRCTL_ADD_IF 4
32#define BRCTL_DEL_IF 5
33#define BRCTL_GET_BRIDGE_INFO 6
34#define BRCTL_GET_PORT_LIST 7
35#define BRCTL_SET_BRIDGE_FORWARD_DELAY 8
36#define BRCTL_SET_BRIDGE_HELLO_TIME 9
37#define BRCTL_SET_BRIDGE_MAX_AGE 10
38#define BRCTL_SET_AGEING_TIME 11
39#define BRCTL_SET_GC_INTERVAL 12
40#define BRCTL_GET_PORT_INFO 13
41#define BRCTL_SET_BRIDGE_STP_STATE 14
42#define BRCTL_SET_BRIDGE_PRIORITY 15
43#define BRCTL_SET_PORT_PRIORITY 16
44#define BRCTL_SET_PATH_COST 17
45#define BRCTL_GET_FDB_ENTRIES 18
46
47#define BR_STATE_DISABLED 0
48#define BR_STATE_LISTENING 1
49#define BR_STATE_LEARNING 2
50#define BR_STATE_FORWARDING 3
51#define BR_STATE_BLOCKING 4
52
53struct __bridge_info {
54	__u64 designated_root;
55	__u64 bridge_id;
56	__u32 root_path_cost;
57	__u32 max_age;
58	__u32 hello_time;
59	__u32 forward_delay;
60	__u32 bridge_max_age;
61	__u32 bridge_hello_time;
62	__u32 bridge_forward_delay;
63	__u8 topology_change;
64	__u8 topology_change_detected;
65	__u8 root_port;
66	__u8 stp_enabled;
67	__u32 ageing_time;
68	__u32 gc_interval;
69	__u32 hello_timer_value;
70	__u32 tcn_timer_value;
71	__u32 topology_change_timer_value;
72	__u32 gc_timer_value;
73};
74
75struct __port_info {
76	__u64 designated_root;
77	__u64 designated_bridge;
78	__u16 port_id;
79	__u16 designated_port;
80	__u32 path_cost;
81	__u32 designated_cost;
82	__u8 state;
83	__u8 top_change_ack;
84	__u8 config_pending;
85	__u8 unused0;
86	__u32 message_age_timer_value;
87	__u32 forward_delay_timer_value;
88	__u32 hold_timer_value;
89};
90
91struct __fdb_entry {
92	__u8 mac_addr[ETH_ALEN];
93	__u8 port_no;
94	__u8 is_local;
95	__u32 ageing_timer_value;
96	__u8 port_hi;
97	__u8 pad0;
98	__u16 unused;
99};
100
101/* Bridge Flags */
102#define BRIDGE_FLAGS_MASTER	1	/* Bridge command to/from master */
103#define BRIDGE_FLAGS_SELF	2	/* Bridge command to/from lowerdev */
104
105#define BRIDGE_MODE_VEB		0	/* Default loopback mode */
106#define BRIDGE_MODE_VEPA	1	/* 802.1Qbg defined VEPA mode */
107
108/* Bridge management nested attributes
109 * [IFLA_AF_SPEC] = {
110 *     [IFLA_BRIDGE_FLAGS]
111 *     [IFLA_BRIDGE_MODE]
112 *     [IFLA_BRIDGE_VLAN_INFO]
113 * }
114 */
115enum {
116	IFLA_BRIDGE_FLAGS,
117	IFLA_BRIDGE_MODE,
118	IFLA_BRIDGE_VLAN_INFO,
119	__IFLA_BRIDGE_MAX,
120};
121#define IFLA_BRIDGE_MAX (__IFLA_BRIDGE_MAX - 1)
122
123#define BRIDGE_VLAN_INFO_MASTER	(1<<0)	/* Operate on Bridge device as well */
124#define BRIDGE_VLAN_INFO_PVID	(1<<1)	/* VLAN is PVID, ingress untagged */
125#define BRIDGE_VLAN_INFO_UNTAGGED	(1<<2)	/* VLAN egresses untagged */
126
127struct bridge_vlan_info {
128	__u16 flags;
129	__u16 vid;
130};
131
132/* Bridge multicast database attributes
133 * [MDBA_MDB] = {
134 *     [MDBA_MDB_ENTRY] = {
135 *         [MDBA_MDB_ENTRY_INFO]
136 *     }
137 * }
138 * [MDBA_ROUTER] = {
139 *    [MDBA_ROUTER_PORT]
140 * }
141 */
142enum {
143	MDBA_UNSPEC,
144	MDBA_MDB,
145	MDBA_ROUTER,
146	__MDBA_MAX,
147};
148#define MDBA_MAX (__MDBA_MAX - 1)
149
150enum {
151	MDBA_MDB_UNSPEC,
152	MDBA_MDB_ENTRY,
153	__MDBA_MDB_MAX,
154};
155#define MDBA_MDB_MAX (__MDBA_MDB_MAX - 1)
156
157enum {
158	MDBA_MDB_ENTRY_UNSPEC,
159	MDBA_MDB_ENTRY_INFO,
160	__MDBA_MDB_ENTRY_MAX,
161};
162#define MDBA_MDB_ENTRY_MAX (__MDBA_MDB_ENTRY_MAX - 1)
163
164enum {
165	MDBA_ROUTER_UNSPEC,
166	MDBA_ROUTER_PORT,
167	__MDBA_ROUTER_MAX,
168};
169#define MDBA_ROUTER_MAX (__MDBA_ROUTER_MAX - 1)
170
171struct br_port_msg {
172	__u8  family;
173	__u32 ifindex;
174};
175
176struct br_mdb_entry {
177	__u32 ifindex;
178#define MDB_TEMPORARY 0
179#define MDB_PERMANENT 1
180	__u8 state;
181	struct {
182		union {
183			__be32	ip4;
184			struct in6_addr ip6;
185		} u;
186		__be16		proto;
187	} addr;
188};
189
190enum {
191	MDBA_SET_ENTRY_UNSPEC,
192	MDBA_SET_ENTRY,
193	__MDBA_SET_ENTRY_MAX,
194};
195#define MDBA_SET_ENTRY_MAX (__MDBA_SET_ENTRY_MAX - 1)
196
197#endif /* _UAPI_LINUX_IF_BRIDGE_H */
198