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
109/* Bridge management nested attributes
110 * [IFLA_AF_SPEC] = {
111 *     [IFLA_BRIDGE_FLAGS]
112 *     [IFLA_BRIDGE_MODE]
113 *     [IFLA_BRIDGE_VLAN_INFO]
114 * }
115 */
116enum {
117	IFLA_BRIDGE_FLAGS,
118	IFLA_BRIDGE_MODE,
119	IFLA_BRIDGE_VLAN_INFO,
120	__IFLA_BRIDGE_MAX,
121};
122#define IFLA_BRIDGE_MAX (__IFLA_BRIDGE_MAX - 1)
123
124#define BRIDGE_VLAN_INFO_MASTER	(1<<0)	/* Operate on Bridge device as well */
125#define BRIDGE_VLAN_INFO_PVID	(1<<1)	/* VLAN is PVID, ingress untagged */
126#define BRIDGE_VLAN_INFO_UNTAGGED	(1<<2)	/* VLAN egresses untagged */
127
128struct bridge_vlan_info {
129	__u16 flags;
130	__u16 vid;
131};
132
133/* Bridge multicast database attributes
134 * [MDBA_MDB] = {
135 *     [MDBA_MDB_ENTRY] = {
136 *         [MDBA_MDB_ENTRY_INFO]
137 *     }
138 * }
139 * [MDBA_ROUTER] = {
140 *    [MDBA_ROUTER_PORT]
141 * }
142 */
143enum {
144	MDBA_UNSPEC,
145	MDBA_MDB,
146	MDBA_ROUTER,
147	__MDBA_MAX,
148};
149#define MDBA_MAX (__MDBA_MAX - 1)
150
151enum {
152	MDBA_MDB_UNSPEC,
153	MDBA_MDB_ENTRY,
154	__MDBA_MDB_MAX,
155};
156#define MDBA_MDB_MAX (__MDBA_MDB_MAX - 1)
157
158enum {
159	MDBA_MDB_ENTRY_UNSPEC,
160	MDBA_MDB_ENTRY_INFO,
161	__MDBA_MDB_ENTRY_MAX,
162};
163#define MDBA_MDB_ENTRY_MAX (__MDBA_MDB_ENTRY_MAX - 1)
164
165enum {
166	MDBA_ROUTER_UNSPEC,
167	MDBA_ROUTER_PORT,
168	__MDBA_ROUTER_MAX,
169};
170#define MDBA_ROUTER_MAX (__MDBA_ROUTER_MAX - 1)
171
172struct br_port_msg {
173	__u8  family;
174	__u32 ifindex;
175};
176
177struct br_mdb_entry {
178	__u32 ifindex;
179#define MDB_TEMPORARY 0
180#define MDB_PERMANENT 1
181	__u8 state;
182	struct {
183		union {
184			__be32	ip4;
185			struct in6_addr ip6;
186		} u;
187		__be16		proto;
188	} addr;
189};
190
191enum {
192	MDBA_SET_ENTRY_UNSPEC,
193	MDBA_SET_ENTRY,
194	__MDBA_SET_ENTRY_MAX,
195};
196#define MDBA_SET_ENTRY_MAX (__MDBA_SET_ENTRY_MAX - 1)
197
198#endif /* _UAPI_LINUX_IF_BRIDGE_H */
199