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 */ 133 134 struct bridge_vlan_info { 135 __u16 flags; 136 __u16 vid; 137 }; 138 139 enum { 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) 148 149 struct bridge_vlan_xstats { 150 __u64 rx_bytes; 151 __u64 rx_packets; 152 __u64 tx_bytes; 153 __u64 tx_packets; 154 __u16 vid; 155 __u16 flags; 156 __u32 pad2; 157 }; 158 159 struct 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 }; 167 168 /* Bridge vlan RTM header */ 169 struct br_vlan_msg { 170 __u8 family; 171 __u8 reserved1; 172 __u16 reserved2; 173 __u32 ifindex; 174 }; 175 176 /* Bridge vlan RTM attributes 177 * [BRIDGE_VLANDB_ENTRY] = { 178 * [BRIDGE_VLANDB_ENTRY_INFO] 179 * ... 180 * } 181 */ 182 enum { 183 BRIDGE_VLANDB_UNSPEC, 184 BRIDGE_VLANDB_ENTRY, 185 __BRIDGE_VLANDB_MAX, 186 }; 187 #define BRIDGE_VLANDB_MAX (__BRIDGE_VLANDB_MAX - 1) 188 189 enum { 190 BRIDGE_VLANDB_ENTRY_UNSPEC, 191 BRIDGE_VLANDB_ENTRY_INFO, 192 BRIDGE_VLANDB_ENTRY_RANGE, 193 __BRIDGE_VLANDB_ENTRY_MAX, 194 }; 195 #define BRIDGE_VLANDB_ENTRY_MAX (__BRIDGE_VLANDB_ENTRY_MAX - 1) 196 197 /* Bridge multicast database attributes 198 * [MDBA_MDB] = { 199 * [MDBA_MDB_ENTRY] = { 200 * [MDBA_MDB_ENTRY_INFO] { 201 * struct br_mdb_entry 202 * [MDBA_MDB_EATTR attributes] 203 * } 204 * } 205 * } 206 * [MDBA_ROUTER] = { 207 * [MDBA_ROUTER_PORT] = { 208 * u32 ifindex 209 * [MDBA_ROUTER_PATTR attributes] 210 * } 211 * } 212 */ 213 enum { 214 MDBA_UNSPEC, 215 MDBA_MDB, 216 MDBA_ROUTER, 217 __MDBA_MAX, 218 }; 219 #define MDBA_MAX (__MDBA_MAX - 1) 220 221 enum { 222 MDBA_MDB_UNSPEC, 223 MDBA_MDB_ENTRY, 224 __MDBA_MDB_MAX, 225 }; 226 #define MDBA_MDB_MAX (__MDBA_MDB_MAX - 1) 227 228 enum { 229 MDBA_MDB_ENTRY_UNSPEC, 230 MDBA_MDB_ENTRY_INFO, 231 __MDBA_MDB_ENTRY_MAX, 232 }; 233 #define MDBA_MDB_ENTRY_MAX (__MDBA_MDB_ENTRY_MAX - 1) 234 235 /* per mdb entry additional attributes */ 236 enum { 237 MDBA_MDB_EATTR_UNSPEC, 238 MDBA_MDB_EATTR_TIMER, 239 __MDBA_MDB_EATTR_MAX 240 }; 241 #define MDBA_MDB_EATTR_MAX (__MDBA_MDB_EATTR_MAX - 1) 242 243 /* multicast router types */ 244 enum { 245 MDB_RTR_TYPE_DISABLED, 246 MDB_RTR_TYPE_TEMP_QUERY, 247 MDB_RTR_TYPE_PERM, 248 MDB_RTR_TYPE_TEMP 249 }; 250 251 enum { 252 MDBA_ROUTER_UNSPEC, 253 MDBA_ROUTER_PORT, 254 __MDBA_ROUTER_MAX, 255 }; 256 #define MDBA_ROUTER_MAX (__MDBA_ROUTER_MAX - 1) 257 258 /* router port attributes */ 259 enum { 260 MDBA_ROUTER_PATTR_UNSPEC, 261 MDBA_ROUTER_PATTR_TIMER, 262 MDBA_ROUTER_PATTR_TYPE, 263 __MDBA_ROUTER_PATTR_MAX 264 }; 265 #define MDBA_ROUTER_PATTR_MAX (__MDBA_ROUTER_PATTR_MAX - 1) 266 267 struct br_port_msg { 268 __u8 family; 269 __u32 ifindex; 270 }; 271 272 struct br_mdb_entry { 273 __u32 ifindex; 274 #define MDB_TEMPORARY 0 275 #define MDB_PERMANENT 1 276 __u8 state; 277 #define MDB_FLAGS_OFFLOAD (1 << 0) 278 #define MDB_FLAGS_FAST_LEAVE (1 << 1) 279 __u8 flags; 280 __u16 vid; 281 struct { 282 union { 283 __be32 ip4; 284 struct in6_addr ip6; 285 } u; 286 __be16 proto; 287 } addr; 288 }; 289 290 enum { 291 MDBA_SET_ENTRY_UNSPEC, 292 MDBA_SET_ENTRY, 293 __MDBA_SET_ENTRY_MAX, 294 }; 295 #define MDBA_SET_ENTRY_MAX (__MDBA_SET_ENTRY_MAX - 1) 296 297 /* Embedded inside LINK_XSTATS_TYPE_BRIDGE */ 298 enum { 299 BRIDGE_XSTATS_UNSPEC, 300 BRIDGE_XSTATS_VLAN, 301 BRIDGE_XSTATS_MCAST, 302 BRIDGE_XSTATS_PAD, 303 BRIDGE_XSTATS_STP, 304 __BRIDGE_XSTATS_MAX 305 }; 306 #define BRIDGE_XSTATS_MAX (__BRIDGE_XSTATS_MAX - 1) 307 308 enum { 309 BR_MCAST_DIR_RX, 310 BR_MCAST_DIR_TX, 311 BR_MCAST_DIR_SIZE 312 }; 313 314 /* IGMP/MLD statistics */ 315 struct br_mcast_stats { 316 __u64 igmp_v1queries[BR_MCAST_DIR_SIZE]; 317 __u64 igmp_v2queries[BR_MCAST_DIR_SIZE]; 318 __u64 igmp_v3queries[BR_MCAST_DIR_SIZE]; 319 __u64 igmp_leaves[BR_MCAST_DIR_SIZE]; 320 __u64 igmp_v1reports[BR_MCAST_DIR_SIZE]; 321 __u64 igmp_v2reports[BR_MCAST_DIR_SIZE]; 322 __u64 igmp_v3reports[BR_MCAST_DIR_SIZE]; 323 __u64 igmp_parse_errors; 324 325 __u64 mld_v1queries[BR_MCAST_DIR_SIZE]; 326 __u64 mld_v2queries[BR_MCAST_DIR_SIZE]; 327 __u64 mld_leaves[BR_MCAST_DIR_SIZE]; 328 __u64 mld_v1reports[BR_MCAST_DIR_SIZE]; 329 __u64 mld_v2reports[BR_MCAST_DIR_SIZE]; 330 __u64 mld_parse_errors; 331 332 __u64 mcast_bytes[BR_MCAST_DIR_SIZE]; 333 __u64 mcast_packets[BR_MCAST_DIR_SIZE]; 334 }; 335 336 /* bridge boolean options 337 * BR_BOOLOPT_NO_LL_LEARN - disable learning from link-local packets 338 * 339 * IMPORTANT: if adding a new option do not forget to handle 340 * it in br_boolopt_toggle/get and bridge sysfs 341 */ 342 enum br_boolopt_id { 343 BR_BOOLOPT_NO_LL_LEARN, 344 BR_BOOLOPT_MAX 345 }; 346 347 /* struct br_boolopt_multi - change multiple bridge boolean options 348 * 349 * @optval: new option values (bit per option) 350 * @optmask: options to change (bit per option) 351 */ 352 struct br_boolopt_multi { 353 __u32 optval; 354 __u32 optmask; 355 }; 356 #endif /* _UAPI_LINUX_IF_BRIDGE_H */ 357