1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ 2 /* 3 * Linux ethernet bridge 4 * 5 * Authors: 6 * Lennert Buytenhek <[email protected]> 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 _UAPI_LINUX_IF_BRIDGE_H 15 #define _UAPI_LINUX_IF_BRIDGE_H 16 17 #include <linux/types.h> 18 #include <linux/if_ether.h> 19 #include <linux/in6.h> 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 55 struct __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 77 struct __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 93 struct __fdb_entry { 94 __u8 mac_addr[ETH_ALEN]; 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 */ 109 #define BRIDGE_MODE_UNDEF 0xFFFF /* mode undefined */ 110 111 /* Bridge management nested attributes 112 * [IFLA_AF_SPEC] = { 113 * [IFLA_BRIDGE_FLAGS] 114 * [IFLA_BRIDGE_MODE] 115 * [IFLA_BRIDGE_VLAN_INFO] 116 * } 117 */ 118 enum { 119 IFLA_BRIDGE_FLAGS, 120 IFLA_BRIDGE_MODE, 121 IFLA_BRIDGE_VLAN_INFO, 122 IFLA_BRIDGE_VLAN_TUNNEL_INFO, 123 __IFLA_BRIDGE_MAX, 124 }; 125 #define IFLA_BRIDGE_MAX (__IFLA_BRIDGE_MAX - 1) 126 127 #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 */ 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 */ 132 #define BRIDGE_VLAN_INFO_BRENTRY (1<<5) /* Global bridge VLAN entry */ 133 #define BRIDGE_VLAN_INFO_ONLY_OPTS (1<<6) /* Skip create/delete/flags */ 134 135 struct bridge_vlan_info { 136 __u16 flags; 137 __u16 vid; 138 }; 139 140 enum { 141 IFLA_BRIDGE_VLAN_TUNNEL_UNSPEC, 142 IFLA_BRIDGE_VLAN_TUNNEL_ID, 143 IFLA_BRIDGE_VLAN_TUNNEL_VID, 144 IFLA_BRIDGE_VLAN_TUNNEL_FLAGS, 145 __IFLA_BRIDGE_VLAN_TUNNEL_MAX, 146 }; 147 148 #define IFLA_BRIDGE_VLAN_TUNNEL_MAX (__IFLA_BRIDGE_VLAN_TUNNEL_MAX - 1) 149 150 struct bridge_vlan_xstats { 151 __u64 rx_bytes; 152 __u64 rx_packets; 153 __u64 tx_bytes; 154 __u64 tx_packets; 155 __u16 vid; 156 __u16 flags; 157 __u32 pad2; 158 }; 159 160 struct bridge_stp_xstats { 161 __u64 transition_blk; 162 __u64 transition_fwd; 163 __u64 rx_bpdu; 164 __u64 tx_bpdu; 165 __u64 rx_tcn; 166 __u64 tx_tcn; 167 }; 168 169 /* Bridge vlan RTM header */ 170 struct br_vlan_msg { 171 __u8 family; 172 __u8 reserved1; 173 __u16 reserved2; 174 __u32 ifindex; 175 }; 176 177 enum { 178 BRIDGE_VLANDB_DUMP_UNSPEC, 179 BRIDGE_VLANDB_DUMP_FLAGS, 180 __BRIDGE_VLANDB_DUMP_MAX, 181 }; 182 #define BRIDGE_VLANDB_DUMP_MAX (__BRIDGE_VLANDB_DUMP_MAX - 1) 183 184 /* flags used in BRIDGE_VLANDB_DUMP_FLAGS attribute to affect dumps */ 185 #define BRIDGE_VLANDB_DUMPF_STATS (1 << 0) /* Include stats in the dump */ 186 187 /* Bridge vlan RTM attributes 188 * [BRIDGE_VLANDB_ENTRY] = { 189 * [BRIDGE_VLANDB_ENTRY_INFO] 190 * ... 191 * } 192 */ 193 enum { 194 BRIDGE_VLANDB_UNSPEC, 195 BRIDGE_VLANDB_ENTRY, 196 __BRIDGE_VLANDB_MAX, 197 }; 198 #define BRIDGE_VLANDB_MAX (__BRIDGE_VLANDB_MAX - 1) 199 200 enum { 201 BRIDGE_VLANDB_ENTRY_UNSPEC, 202 BRIDGE_VLANDB_ENTRY_INFO, 203 BRIDGE_VLANDB_ENTRY_RANGE, 204 BRIDGE_VLANDB_ENTRY_STATE, 205 BRIDGE_VLANDB_ENTRY_TUNNEL_INFO, 206 BRIDGE_VLANDB_ENTRY_STATS, 207 __BRIDGE_VLANDB_ENTRY_MAX, 208 }; 209 #define BRIDGE_VLANDB_ENTRY_MAX (__BRIDGE_VLANDB_ENTRY_MAX - 1) 210 211 /* [BRIDGE_VLANDB_ENTRY] = { 212 * [BRIDGE_VLANDB_ENTRY_TUNNEL_INFO] = { 213 * [BRIDGE_VLANDB_TINFO_ID] 214 * ... 215 * } 216 * } 217 */ 218 enum { 219 BRIDGE_VLANDB_TINFO_UNSPEC, 220 BRIDGE_VLANDB_TINFO_ID, 221 BRIDGE_VLANDB_TINFO_CMD, 222 __BRIDGE_VLANDB_TINFO_MAX, 223 }; 224 #define BRIDGE_VLANDB_TINFO_MAX (__BRIDGE_VLANDB_TINFO_MAX - 1) 225 226 /* [BRIDGE_VLANDB_ENTRY] = { 227 * [BRIDGE_VLANDB_ENTRY_STATS] = { 228 * [BRIDGE_VLANDB_STATS_RX_BYTES] 229 * ... 230 * } 231 * ... 232 * } 233 */ 234 enum { 235 BRIDGE_VLANDB_STATS_UNSPEC, 236 BRIDGE_VLANDB_STATS_RX_BYTES, 237 BRIDGE_VLANDB_STATS_RX_PACKETS, 238 BRIDGE_VLANDB_STATS_TX_BYTES, 239 BRIDGE_VLANDB_STATS_TX_PACKETS, 240 BRIDGE_VLANDB_STATS_PAD, 241 __BRIDGE_VLANDB_STATS_MAX, 242 }; 243 #define BRIDGE_VLANDB_STATS_MAX (__BRIDGE_VLANDB_STATS_MAX - 1) 244 245 /* Bridge multicast database attributes 246 * [MDBA_MDB] = { 247 * [MDBA_MDB_ENTRY] = { 248 * [MDBA_MDB_ENTRY_INFO] { 249 * struct br_mdb_entry 250 * [MDBA_MDB_EATTR attributes] 251 * } 252 * } 253 * } 254 * [MDBA_ROUTER] = { 255 * [MDBA_ROUTER_PORT] = { 256 * u32 ifindex 257 * [MDBA_ROUTER_PATTR attributes] 258 * } 259 * } 260 */ 261 enum { 262 MDBA_UNSPEC, 263 MDBA_MDB, 264 MDBA_ROUTER, 265 __MDBA_MAX, 266 }; 267 #define MDBA_MAX (__MDBA_MAX - 1) 268 269 enum { 270 MDBA_MDB_UNSPEC, 271 MDBA_MDB_ENTRY, 272 __MDBA_MDB_MAX, 273 }; 274 #define MDBA_MDB_MAX (__MDBA_MDB_MAX - 1) 275 276 enum { 277 MDBA_MDB_ENTRY_UNSPEC, 278 MDBA_MDB_ENTRY_INFO, 279 __MDBA_MDB_ENTRY_MAX, 280 }; 281 #define MDBA_MDB_ENTRY_MAX (__MDBA_MDB_ENTRY_MAX - 1) 282 283 /* per mdb entry additional attributes */ 284 enum { 285 MDBA_MDB_EATTR_UNSPEC, 286 MDBA_MDB_EATTR_TIMER, 287 __MDBA_MDB_EATTR_MAX 288 }; 289 #define MDBA_MDB_EATTR_MAX (__MDBA_MDB_EATTR_MAX - 1) 290 291 /* multicast router types */ 292 enum { 293 MDB_RTR_TYPE_DISABLED, 294 MDB_RTR_TYPE_TEMP_QUERY, 295 MDB_RTR_TYPE_PERM, 296 MDB_RTR_TYPE_TEMP 297 }; 298 299 enum { 300 MDBA_ROUTER_UNSPEC, 301 MDBA_ROUTER_PORT, 302 __MDBA_ROUTER_MAX, 303 }; 304 #define MDBA_ROUTER_MAX (__MDBA_ROUTER_MAX - 1) 305 306 /* router port attributes */ 307 enum { 308 MDBA_ROUTER_PATTR_UNSPEC, 309 MDBA_ROUTER_PATTR_TIMER, 310 MDBA_ROUTER_PATTR_TYPE, 311 __MDBA_ROUTER_PATTR_MAX 312 }; 313 #define MDBA_ROUTER_PATTR_MAX (__MDBA_ROUTER_PATTR_MAX - 1) 314 315 struct br_port_msg { 316 __u8 family; 317 __u32 ifindex; 318 }; 319 320 struct br_mdb_entry { 321 __u32 ifindex; 322 #define MDB_TEMPORARY 0 323 #define MDB_PERMANENT 1 324 __u8 state; 325 #define MDB_FLAGS_OFFLOAD (1 << 0) 326 #define MDB_FLAGS_FAST_LEAVE (1 << 1) 327 __u8 flags; 328 __u16 vid; 329 struct { 330 union { 331 __be32 ip4; 332 struct in6_addr ip6; 333 } u; 334 __be16 proto; 335 } addr; 336 }; 337 338 enum { 339 MDBA_SET_ENTRY_UNSPEC, 340 MDBA_SET_ENTRY, 341 __MDBA_SET_ENTRY_MAX, 342 }; 343 #define MDBA_SET_ENTRY_MAX (__MDBA_SET_ENTRY_MAX - 1) 344 345 /* Embedded inside LINK_XSTATS_TYPE_BRIDGE */ 346 enum { 347 BRIDGE_XSTATS_UNSPEC, 348 BRIDGE_XSTATS_VLAN, 349 BRIDGE_XSTATS_MCAST, 350 BRIDGE_XSTATS_PAD, 351 BRIDGE_XSTATS_STP, 352 __BRIDGE_XSTATS_MAX 353 }; 354 #define BRIDGE_XSTATS_MAX (__BRIDGE_XSTATS_MAX - 1) 355 356 enum { 357 BR_MCAST_DIR_RX, 358 BR_MCAST_DIR_TX, 359 BR_MCAST_DIR_SIZE 360 }; 361 362 /* IGMP/MLD statistics */ 363 struct br_mcast_stats { 364 __u64 igmp_v1queries[BR_MCAST_DIR_SIZE]; 365 __u64 igmp_v2queries[BR_MCAST_DIR_SIZE]; 366 __u64 igmp_v3queries[BR_MCAST_DIR_SIZE]; 367 __u64 igmp_leaves[BR_MCAST_DIR_SIZE]; 368 __u64 igmp_v1reports[BR_MCAST_DIR_SIZE]; 369 __u64 igmp_v2reports[BR_MCAST_DIR_SIZE]; 370 __u64 igmp_v3reports[BR_MCAST_DIR_SIZE]; 371 __u64 igmp_parse_errors; 372 373 __u64 mld_v1queries[BR_MCAST_DIR_SIZE]; 374 __u64 mld_v2queries[BR_MCAST_DIR_SIZE]; 375 __u64 mld_leaves[BR_MCAST_DIR_SIZE]; 376 __u64 mld_v1reports[BR_MCAST_DIR_SIZE]; 377 __u64 mld_v2reports[BR_MCAST_DIR_SIZE]; 378 __u64 mld_parse_errors; 379 380 __u64 mcast_bytes[BR_MCAST_DIR_SIZE]; 381 __u64 mcast_packets[BR_MCAST_DIR_SIZE]; 382 }; 383 384 /* bridge boolean options 385 * BR_BOOLOPT_NO_LL_LEARN - disable learning from link-local packets 386 * 387 * IMPORTANT: if adding a new option do not forget to handle 388 * it in br_boolopt_toggle/get and bridge sysfs 389 */ 390 enum br_boolopt_id { 391 BR_BOOLOPT_NO_LL_LEARN, 392 BR_BOOLOPT_MAX 393 }; 394 395 /* struct br_boolopt_multi - change multiple bridge boolean options 396 * 397 * @optval: new option values (bit per option) 398 * @optmask: options to change (bit per option) 399 */ 400 struct br_boolopt_multi { 401 __u32 optval; 402 __u32 optmask; 403 }; 404 #endif /* _UAPI_LINUX_IF_BRIDGE_H */ 405