1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ 2 /* 3 * Linux ethernet bridge 4 * 5 * Authors: 6 * Lennert Buytenhek <buytenh (at) 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> 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 /* Bridge multicast database attributes 160 * [MDBA_MDB] = { 161 * [MDBA_MDB_ENTRY] = { 162 * [MDBA_MDB_ENTRY_INFO] { 163 * struct br_mdb_entry 164 * [MDBA_MDB_EATTR attributes] 165 * } 166 * } 167 * } 168 * [MDBA_ROUTER] = { 169 * [MDBA_ROUTER_PORT] = { 170 * u32 ifindex 171 * [MDBA_ROUTER_PATTR attributes] 172 * } 173 * } 174 */ 175 enum { 176 MDBA_UNSPEC, 177 MDBA_MDB, 178 MDBA_ROUTER, 179 __MDBA_MAX, 180 }; 181 #define MDBA_MAX (__MDBA_MAX - 1) 182 183 enum { 184 MDBA_MDB_UNSPEC, 185 MDBA_MDB_ENTRY, 186 __MDBA_MDB_MAX, 187 }; 188 #define MDBA_MDB_MAX (__MDBA_MDB_MAX - 1) 189 190 enum { 191 MDBA_MDB_ENTRY_UNSPEC, 192 MDBA_MDB_ENTRY_INFO, 193 __MDBA_MDB_ENTRY_MAX, 194 }; 195 #define MDBA_MDB_ENTRY_MAX (__MDBA_MDB_ENTRY_MAX - 1) 196 197 /* per mdb entry additional attributes */ 198 enum { 199 MDBA_MDB_EATTR_UNSPEC, 200 MDBA_MDB_EATTR_TIMER, 201 __MDBA_MDB_EATTR_MAX 202 }; 203 #define MDBA_MDB_EATTR_MAX (__MDBA_MDB_EATTR_MAX - 1) 204 205 /* multicast router types */ 206 enum { 207 MDB_RTR_TYPE_DISABLED, 208 MDB_RTR_TYPE_TEMP_QUERY, 209 MDB_RTR_TYPE_PERM, 210 MDB_RTR_TYPE_TEMP 211 }; 212 213 enum { 214 MDBA_ROUTER_UNSPEC, 215 MDBA_ROUTER_PORT, 216 __MDBA_ROUTER_MAX, 217 }; 218 #define MDBA_ROUTER_MAX (__MDBA_ROUTER_MAX - 1) 219 220 /* router port attributes */ 221 enum { 222 MDBA_ROUTER_PATTR_UNSPEC, 223 MDBA_ROUTER_PATTR_TIMER, 224 MDBA_ROUTER_PATTR_TYPE, 225 __MDBA_ROUTER_PATTR_MAX 226 }; 227 #define MDBA_ROUTER_PATTR_MAX (__MDBA_ROUTER_PATTR_MAX - 1) 228 229 struct br_port_msg { 230 __u8 family; 231 __u32 ifindex; 232 }; 233 234 struct br_mdb_entry { 235 __u32 ifindex; 236 #define MDB_TEMPORARY 0 237 #define MDB_PERMANENT 1 238 __u8 state; 239 #define MDB_FLAGS_OFFLOAD (1 << 0) 240 __u8 flags; 241 __u16 vid; 242 struct { 243 union { 244 __be32 ip4; 245 struct in6_addr ip6; 246 } u; 247 __be16 proto; 248 } addr; 249 }; 250 251 enum { 252 MDBA_SET_ENTRY_UNSPEC, 253 MDBA_SET_ENTRY, 254 __MDBA_SET_ENTRY_MAX, 255 }; 256 #define MDBA_SET_ENTRY_MAX (__MDBA_SET_ENTRY_MAX - 1) 257 258 /* Embedded inside LINK_XSTATS_TYPE_BRIDGE */ 259 enum { 260 BRIDGE_XSTATS_UNSPEC, 261 BRIDGE_XSTATS_VLAN, 262 BRIDGE_XSTATS_MCAST, 263 BRIDGE_XSTATS_PAD, 264 __BRIDGE_XSTATS_MAX 265 }; 266 #define BRIDGE_XSTATS_MAX (__BRIDGE_XSTATS_MAX - 1) 267 268 enum { 269 BR_MCAST_DIR_RX, 270 BR_MCAST_DIR_TX, 271 BR_MCAST_DIR_SIZE 272 }; 273 274 /* IGMP/MLD statistics */ 275 struct br_mcast_stats { 276 __u64 igmp_v1queries[BR_MCAST_DIR_SIZE]; 277 __u64 igmp_v2queries[BR_MCAST_DIR_SIZE]; 278 __u64 igmp_v3queries[BR_MCAST_DIR_SIZE]; 279 __u64 igmp_leaves[BR_MCAST_DIR_SIZE]; 280 __u64 igmp_v1reports[BR_MCAST_DIR_SIZE]; 281 __u64 igmp_v2reports[BR_MCAST_DIR_SIZE]; 282 __u64 igmp_v3reports[BR_MCAST_DIR_SIZE]; 283 __u64 igmp_parse_errors; 284 285 __u64 mld_v1queries[BR_MCAST_DIR_SIZE]; 286 __u64 mld_v2queries[BR_MCAST_DIR_SIZE]; 287 __u64 mld_leaves[BR_MCAST_DIR_SIZE]; 288 __u64 mld_v1reports[BR_MCAST_DIR_SIZE]; 289 __u64 mld_v2reports[BR_MCAST_DIR_SIZE]; 290 __u64 mld_parse_errors; 291 292 __u64 mcast_bytes[BR_MCAST_DIR_SIZE]; 293 __u64 mcast_packets[BR_MCAST_DIR_SIZE]; 294 }; 295 #endif /* _LINUX_IF_BRIDGE_H */ 296
