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ba914908 1/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
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2/*
3 * Linux ethernet bridge
4 *
5 * Authors:
6 * Lennert Buytenhek <buytenh@gnu.org>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version
11 * 2 of the License, or (at your option) any later version.
12 */
13
14#ifndef _LINUX_IF_BRIDGE_H
15#define _LINUX_IF_BRIDGE_H
16
17#include <linux/types.h>
6b2ed935 18#include <linux/if_ether.h>
e9c4b7c3 19#include <linux/in6.h>
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20
21#define SYSFS_BRIDGE_ATTR "bridge"
22#define SYSFS_BRIDGE_FDB "brforward"
23#define SYSFS_BRIDGE_PORT_SUBDIR "brif"
24#define SYSFS_BRIDGE_PORT_ATTR "brport"
25#define SYSFS_BRIDGE_PORT_LINK "bridge"
26
27#define BRCTL_VERSION 1
28
29#define BRCTL_GET_VERSION 0
30#define BRCTL_GET_BRIDGES 1
31#define BRCTL_ADD_BRIDGE 2
32#define BRCTL_DEL_BRIDGE 3
33#define BRCTL_ADD_IF 4
34#define BRCTL_DEL_IF 5
35#define BRCTL_GET_BRIDGE_INFO 6
36#define BRCTL_GET_PORT_LIST 7
37#define BRCTL_SET_BRIDGE_FORWARD_DELAY 8
38#define BRCTL_SET_BRIDGE_HELLO_TIME 9
39#define BRCTL_SET_BRIDGE_MAX_AGE 10
40#define BRCTL_SET_AGEING_TIME 11
41#define BRCTL_SET_GC_INTERVAL 12
42#define BRCTL_GET_PORT_INFO 13
43#define BRCTL_SET_BRIDGE_STP_STATE 14
44#define BRCTL_SET_BRIDGE_PRIORITY 15
45#define BRCTL_SET_PORT_PRIORITY 16
46#define BRCTL_SET_PATH_COST 17
47#define BRCTL_GET_FDB_ENTRIES 18
48
49#define BR_STATE_DISABLED 0
50#define BR_STATE_LISTENING 1
51#define BR_STATE_LEARNING 2
52#define BR_STATE_FORWARDING 3
53#define BR_STATE_BLOCKING 4
54
55struct __bridge_info {
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
77struct __port_info {
78 __u64 designated_root;
79 __u64 designated_bridge;
80 __u16 port_id;
81 __u16 designated_port;
82 __u32 path_cost;
83 __u32 designated_cost;
84 __u8 state;
85 __u8 top_change_ack;
86 __u8 config_pending;
87 __u8 unused0;
88 __u32 message_age_timer_value;
89 __u32 forward_delay_timer_value;
90 __u32 hold_timer_value;
91};
92
93struct __fdb_entry {
6b2ed935 94 __u8 mac_addr[ETH_ALEN];
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95 __u8 port_no;
96 __u8 is_local;
97 __u32 ageing_timer_value;
98 __u8 port_hi;
99 __u8 pad0;
100 __u16 unused;
101};
102
103/* Bridge Flags */
104#define BRIDGE_FLAGS_MASTER 1 /* Bridge command to/from master */
105#define BRIDGE_FLAGS_SELF 2 /* Bridge command to/from lowerdev */
106
107#define BRIDGE_MODE_VEB 0 /* Default loopback mode */
108#define BRIDGE_MODE_VEPA 1 /* 802.1Qbg defined VEPA mode */
093f18fd 109#define BRIDGE_MODE_UNDEF 0xFFFF /* mode undefined */
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110
111/* Bridge management nested attributes
112 * [IFLA_AF_SPEC] = {
113 * [IFLA_BRIDGE_FLAGS]
114 * [IFLA_BRIDGE_MODE]
609106d3 115 * [IFLA_BRIDGE_VLAN_INFO]
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116 * }
117 */
118enum {
119 IFLA_BRIDGE_FLAGS,
120 IFLA_BRIDGE_MODE,
609106d3 121 IFLA_BRIDGE_VLAN_INFO,
985091aa 122 IFLA_BRIDGE_VLAN_TUNNEL_INFO,
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123 __IFLA_BRIDGE_MAX,
124};
125#define IFLA_BRIDGE_MAX (__IFLA_BRIDGE_MAX - 1)
126
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127#define BRIDGE_VLAN_INFO_MASTER (1<<0) /* Operate on Bridge device as well */
128#define BRIDGE_VLAN_INFO_PVID (1<<1) /* VLAN is PVID, ingress untagged */
129#define BRIDGE_VLAN_INFO_UNTAGGED (1<<2) /* VLAN egresses untagged */
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130#define BRIDGE_VLAN_INFO_RANGE_BEGIN (1<<3) /* VLAN is start of vlan range */
131#define BRIDGE_VLAN_INFO_RANGE_END (1<<4) /* VLAN is end of vlan range */
23e90509 132#define BRIDGE_VLAN_INFO_BRENTRY (1<<5) /* Global bridge VLAN entry */
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133
134struct bridge_vlan_info {
135 __u16 flags;
136 __u16 vid;
137};
138
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139enum {
140 IFLA_BRIDGE_VLAN_TUNNEL_UNSPEC,
141 IFLA_BRIDGE_VLAN_TUNNEL_ID,
142 IFLA_BRIDGE_VLAN_TUNNEL_VID,
143 IFLA_BRIDGE_VLAN_TUNNEL_FLAGS,
144 __IFLA_BRIDGE_VLAN_TUNNEL_MAX,
145};
146
147#define IFLA_BRIDGE_VLAN_TUNNEL_MAX (__IFLA_BRIDGE_VLAN_TUNNEL_MAX - 1)
148
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149struct bridge_vlan_xstats {
150 __u64 rx_bytes;
151 __u64 rx_packets;
152 __u64 tx_bytes;
153 __u64 tx_packets;
154 __u16 vid;
380656f8 155 __u16 flags;
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156 __u32 pad2;
157};
158
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159struct bridge_stp_xstats {
160 __u64 transition_blk;
161 __u64 transition_fwd;
162 __u64 rx_bpdu;
163 __u64 tx_bpdu;
164 __u64 rx_tcn;
165 __u64 tx_tcn;
166};
167
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168/* Bridge multicast database attributes
169 * [MDBA_MDB] = {
170 * [MDBA_MDB_ENTRY] = {
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171 * [MDBA_MDB_ENTRY_INFO] {
172 * struct br_mdb_entry
173 * [MDBA_MDB_EATTR attributes]
174 * }
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175 * }
176 * }
177 * [MDBA_ROUTER] = {
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178 * [MDBA_ROUTER_PORT] = {
179 * u32 ifindex
180 * [MDBA_ROUTER_PATTR attributes]
181 * }
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182 * }
183 */
184enum {
185 MDBA_UNSPEC,
186 MDBA_MDB,
187 MDBA_ROUTER,
188 __MDBA_MAX,
189};
190#define MDBA_MAX (__MDBA_MAX - 1)
191
192enum {
193 MDBA_MDB_UNSPEC,
194 MDBA_MDB_ENTRY,
195 __MDBA_MDB_MAX,
196};
197#define MDBA_MDB_MAX (__MDBA_MDB_MAX - 1)
198
199enum {
200 MDBA_MDB_ENTRY_UNSPEC,
201 MDBA_MDB_ENTRY_INFO,
202 __MDBA_MDB_ENTRY_MAX,
203};
204#define MDBA_MDB_ENTRY_MAX (__MDBA_MDB_ENTRY_MAX - 1)
205
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206/* per mdb entry additional attributes */
207enum {
208 MDBA_MDB_EATTR_UNSPEC,
209 MDBA_MDB_EATTR_TIMER,
210 __MDBA_MDB_EATTR_MAX
211};
212#define MDBA_MDB_EATTR_MAX (__MDBA_MDB_EATTR_MAX - 1)
213
214/* multicast router types */
215enum {
216 MDB_RTR_TYPE_DISABLED,
217 MDB_RTR_TYPE_TEMP_QUERY,
218 MDB_RTR_TYPE_PERM,
219 MDB_RTR_TYPE_TEMP
220};
221
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222enum {
223 MDBA_ROUTER_UNSPEC,
224 MDBA_ROUTER_PORT,
225 __MDBA_ROUTER_MAX,
226};
227#define MDBA_ROUTER_MAX (__MDBA_ROUTER_MAX - 1)
228
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229/* router port attributes */
230enum {
231 MDBA_ROUTER_PATTR_UNSPEC,
232 MDBA_ROUTER_PATTR_TIMER,
233 MDBA_ROUTER_PATTR_TYPE,
234 __MDBA_ROUTER_PATTR_MAX
235};
236#define MDBA_ROUTER_PATTR_MAX (__MDBA_ROUTER_PATTR_MAX - 1)
237
08342500 238struct br_port_msg {
9dca6767 239 __u8 family;
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240 __u32 ifindex;
241};
242
243struct br_mdb_entry {
244 __u32 ifindex;
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245#define MDB_TEMPORARY 0
246#define MDB_PERMANENT 1
247 __u8 state;
8593b2ca 248#define MDB_FLAGS_OFFLOAD (1 << 0)
e3af717a 249#define MDB_FLAGS_FAST_LEAVE (1 << 1)
8593b2ca 250 __u8 flags;
a3563ede 251 __u16 vid;
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252 struct {
253 union {
254 __be32 ip4;
255 struct in6_addr ip6;
256 } u;
257 __be16 proto;
258 } addr;
259};
260
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261enum {
262 MDBA_SET_ENTRY_UNSPEC,
263 MDBA_SET_ENTRY,
264 __MDBA_SET_ENTRY_MAX,
265};
266#define MDBA_SET_ENTRY_MAX (__MDBA_SET_ENTRY_MAX - 1)
267
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268/* Embedded inside LINK_XSTATS_TYPE_BRIDGE */
269enum {
270 BRIDGE_XSTATS_UNSPEC,
271 BRIDGE_XSTATS_VLAN,
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272 BRIDGE_XSTATS_MCAST,
273 BRIDGE_XSTATS_PAD,
974f889c 274 BRIDGE_XSTATS_STP,
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275 __BRIDGE_XSTATS_MAX
276};
277#define BRIDGE_XSTATS_MAX (__BRIDGE_XSTATS_MAX - 1)
278
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279enum {
280 BR_MCAST_DIR_RX,
281 BR_MCAST_DIR_TX,
282 BR_MCAST_DIR_SIZE
283};
284
285/* IGMP/MLD statistics */
286struct br_mcast_stats {
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287 __u64 igmp_v1queries[BR_MCAST_DIR_SIZE];
288 __u64 igmp_v2queries[BR_MCAST_DIR_SIZE];
289 __u64 igmp_v3queries[BR_MCAST_DIR_SIZE];
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290 __u64 igmp_leaves[BR_MCAST_DIR_SIZE];
291 __u64 igmp_v1reports[BR_MCAST_DIR_SIZE];
292 __u64 igmp_v2reports[BR_MCAST_DIR_SIZE];
293 __u64 igmp_v3reports[BR_MCAST_DIR_SIZE];
294 __u64 igmp_parse_errors;
295
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296 __u64 mld_v1queries[BR_MCAST_DIR_SIZE];
297 __u64 mld_v2queries[BR_MCAST_DIR_SIZE];
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298 __u64 mld_leaves[BR_MCAST_DIR_SIZE];
299 __u64 mld_v1reports[BR_MCAST_DIR_SIZE];
300 __u64 mld_v2reports[BR_MCAST_DIR_SIZE];
301 __u64 mld_parse_errors;
302
303 __u64 mcast_bytes[BR_MCAST_DIR_SIZE];
304 __u64 mcast_packets[BR_MCAST_DIR_SIZE];
305};
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306
307/* bridge boolean options
308 * BR_BOOLOPT_NO_LL_LEARN - disable learning from link-local packets
309 *
310 * IMPORTANT: if adding a new option do not forget to handle
311 * it in br_boolopt_toggle/get and bridge sysfs
312 */
313enum br_boolopt_id {
314 BR_BOOLOPT_NO_LL_LEARN,
315 BR_BOOLOPT_MAX
316};
317
318/* struct br_boolopt_multi - change multiple bridge boolean options
319 *
320 * @optval: new option values (bit per option)
321 * @optmask: options to change (bit per option)
322 */
323struct br_boolopt_multi {
324 __u32 optval;
325 __u32 optmask;
326};
08342500 327#endif /* _LINUX_IF_BRIDGE_H */