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 _LINUX_IF_BRIDGE_H 14 #define _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 54 struct __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 76 struct __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 92 struct __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 #define BRIDGE_MODE_UNDEF 0xFFFF /* mode undefined */ 109 110 /* Bridge management nested attributes 111 * [IFLA_AF_SPEC] = { 112 * [IFLA_BRIDGE_FLAGS] 113 * [IFLA_BRIDGE_MODE] 114 * [IFLA_BRIDGE_VLAN_INFO] 115 * } 116 */ 117 enum { 118 IFLA_BRIDGE_FLAGS, 119 IFLA_BRIDGE_MODE, 120 IFLA_BRIDGE_VLAN_INFO, 121 __IFLA_BRIDGE_MAX, 122 }; 123 #define IFLA_BRIDGE_MAX (__IFLA_BRIDGE_MAX - 1) 124 125 #define BRIDGE_VLAN_INFO_MASTER (1<<0) /* Operate on Bridge device as well */ 126 #define BRIDGE_VLAN_INFO_PVID (1<<1) /* VLAN is PVID, ingress untagged */ 127 #define BRIDGE_VLAN_INFO_UNTAGGED (1<<2) /* VLAN egresses untagged */ 128 #define BRIDGE_VLAN_INFO_RANGE_BEGIN (1<<3) /* VLAN is start of vlan range */ 129 #define BRIDGE_VLAN_INFO_RANGE_END (1<<4) /* VLAN is end of vlan range */ 130 #define BRIDGE_VLAN_INFO_BRENTRY (1<<5) /* Global bridge VLAN entry */ 131 132 struct bridge_vlan_info { 133 __u16 flags; 134 __u16 vid; 135 }; 136 137 /* Bridge multicast database attributes 138 * [MDBA_MDB] = { 139 * [MDBA_MDB_ENTRY] = { 140 * [MDBA_MDB_ENTRY_INFO] 141 * } 142 * } 143 * [MDBA_ROUTER] = { 144 * [MDBA_ROUTER_PORT] 145 * } 146 */ 147 enum { 148 MDBA_UNSPEC, 149 MDBA_MDB, 150 MDBA_ROUTER, 151 __MDBA_MAX, 152 }; 153 #define MDBA_MAX (__MDBA_MAX - 1) 154 155 enum { 156 MDBA_MDB_UNSPEC, 157 MDBA_MDB_ENTRY, 158 __MDBA_MDB_MAX, 159 }; 160 #define MDBA_MDB_MAX (__MDBA_MDB_MAX - 1) 161 162 enum { 163 MDBA_MDB_ENTRY_UNSPEC, 164 MDBA_MDB_ENTRY_INFO, 165 __MDBA_MDB_ENTRY_MAX, 166 }; 167 #define MDBA_MDB_ENTRY_MAX (__MDBA_MDB_ENTRY_MAX - 1) 168 169 enum { 170 MDBA_ROUTER_UNSPEC, 171 MDBA_ROUTER_PORT, 172 __MDBA_ROUTER_MAX, 173 }; 174 #define MDBA_ROUTER_MAX (__MDBA_ROUTER_MAX - 1) 175 176 struct br_port_msg { 177 __u8 family; 178 __u32 ifindex; 179 }; 180 181 struct br_mdb_entry { 182 __u32 ifindex; 183 #define MDB_TEMPORARY 0 184 #define MDB_PERMANENT 1 185 __u8 state; 186 __u16 vid; 187 struct { 188 union { 189 __be32 ip4; 190 struct in6_addr ip6; 191 } u; 192 __be16 proto; 193 } addr; 194 }; 195 196 enum { 197 MDBA_SET_ENTRY_UNSPEC, 198 MDBA_SET_ENTRY, 199 __MDBA_SET_ENTRY_MAX, 200 }; 201 #define MDBA_SET_ENTRY_MAX (__MDBA_SET_ENTRY_MAX - 1) 202 203 #endif /* _LINUX_IF_BRIDGE_H */ 204