include/uapi/linux/if_bridge.h

   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 _UAPI_LINUX_IF_BRIDGE_H
  14 #define _UAPI_LINUX_IF_BRIDGE_H
  15
  16 #include <linux/types.h>
  17 #include <linux/if_ether.h>
  18
  19 #define SYSFS_BRIDGE_ATTR       "bridge"
  20 #define SYSFS_BRIDGE_FDB        "brforward"
  21 #define SYSFS_BRIDGE_PORT_SUBDIR "brif"
  22 #define SYSFS_BRIDGE_PORT_ATTR  "brport"
  23 #define SYSFS_BRIDGE_PORT_LINK  "bridge"
  24
  25 #define BRCTL_VERSION 1
  26
  27 #define BRCTL_GET_VERSION 0
  28 #define BRCTL_GET_BRIDGES 1
  29 #define BRCTL_ADD_BRIDGE 2
  30 #define BRCTL_DEL_BRIDGE 3
  31 #define BRCTL_ADD_IF 4
  32 #define BRCTL_DEL_IF 5
  33 #define BRCTL_GET_BRIDGE_INFO 6
  34 #define BRCTL_GET_PORT_LIST 7
  35 #define BRCTL_SET_BRIDGE_FORWARD_DELAY 8
  36 #define BRCTL_SET_BRIDGE_HELLO_TIME 9
  37 #define BRCTL_SET_BRIDGE_MAX_AGE 10
  38 #define BRCTL_SET_AGEING_TIME 11
  39 #define BRCTL_SET_GC_INTERVAL 12
  40 #define BRCTL_GET_PORT_INFO 13
  41 #define BRCTL_SET_BRIDGE_STP_STATE 14
  42 #define BRCTL_SET_BRIDGE_PRIORITY 15
  43 #define BRCTL_SET_PORT_PRIORITY 16
  44 #define BRCTL_SET_PATH_COST 17
  45 #define BRCTL_GET_FDB_ENTRIES 18
  46
  47 #define BR_STATE_DISABLED 0
  48 #define BR_STATE_LISTENING 1
  49 #define BR_STATE_LEARNING 2
  50 #define BR_STATE_FORWARDING 3
  51 #define BR_STATE_BLOCKING 4
  52
  53 struct __bridge_info {
  54         __u64 designated_root;
  55         __u64 bridge_id;
  56         __u32 root_path_cost;
  57         __u32 max_age;
  58         __u32 hello_time;
  59         __u32 forward_delay;
  60         __u32 bridge_max_age;
  61         __u32 bridge_hello_time;
  62         __u32 bridge_forward_delay;
  63         __u8 topology_change;
  64         __u8 topology_change_detected;
  65         __u8 root_port;
  66         __u8 stp_enabled;
  67         __u32 ageing_time;
  68         __u32 gc_interval;
  69         __u32 hello_timer_value;
  70         __u32 tcn_timer_value;
  71         __u32 topology_change_timer_value;
  72         __u32 gc_timer_value;
  73 };
  74
  75 struct __port_info {
  76         __u64 designated_root;
  77         __u64 designated_bridge;
  78         __u16 port_id;
  79         __u16 designated_port;
  80         __u32 path_cost;
  81         __u32 designated_cost;
  82         __u8 state;
  83         __u8 top_change_ack;
  84         __u8 config_pending;
  85         __u8 unused0;
  86         __u32 message_age_timer_value;
  87         __u32 forward_delay_timer_value;
  88         __u32 hold_timer_value;
  89 };
  90
  91 struct __fdb_entry {
  92         __u8 mac_addr[ETH_ALEN];
  93         __u8 port_no;
  94         __u8 is_local;
  95         __u32 ageing_timer_value;
  96         __u8 port_hi;
  97         __u8 pad0;
  98         __u16 unused;
  99 };
 100
 101 /* Bridge Flags */
 102 #define BRIDGE_FLAGS_MASTER     1       /* Bridge command to/from master */
 103 #define BRIDGE_FLAGS_SELF       2       /* Bridge command to/from lowerdev */
 104
 105 #define BRIDGE_MODE_VEB         0       /* Default loopback mode */
 106 #define BRIDGE_MODE_VEPA        1       /* 802.1Qbg defined VEPA mode */
 107
 108 /* Bridge management nested attributes
 109  * [IFLA_AF_SPEC] = {
 110  *     [IFLA_BRIDGE_FLAGS]
 111  *     [IFLA_BRIDGE_MODE]
 112  *     [IFLA_BRIDGE_VLAN_INFO]
 113  * }
 114  */
 115 enum {
 116         IFLA_BRIDGE_FLAGS,
 117         IFLA_BRIDGE_MODE,
 118         IFLA_BRIDGE_VLAN_INFO,
 119         __IFLA_BRIDGE_MAX,
 120 };
 121 #define IFLA_BRIDGE_MAX (__IFLA_BRIDGE_MAX - 1)
 122
 123 #define BRIDGE_VLAN_INFO_MASTER (1<<0)  /* Operate on Bridge device as well */
 124 #define BRIDGE_VLAN_INFO_PVID   (1<<1)  /* VLAN is PVID, ingress untagged */
 125 #define BRIDGE_VLAN_INFO_UNTAGGED       (1<<2)  /* VLAN egresses untagged */
 126
 127 struct bridge_vlan_info {
 128         __u16 flags;
 129         __u16 vid;
 130 };
 131
 132 /* Bridge multicast database attributes
 133  * [MDBA_MDB] = {
 134  *     [MDBA_MDB_ENTRY] = {
 135  *         [MDBA_MDB_ENTRY_INFO]
 136  *     }
 137  * }
 138  * [MDBA_ROUTER] = {
 139  *    [MDBA_ROUTER_PORT]
 140  * }
 141  */
 142 enum {
 143         MDBA_UNSPEC,
 144         MDBA_MDB,
 145         MDBA_ROUTER,
 146         __MDBA_MAX,
 147 };
 148 #define MDBA_MAX (__MDBA_MAX - 1)
 149
 150 enum {
 151         MDBA_MDB_UNSPEC,
 152         MDBA_MDB_ENTRY,
 153         __MDBA_MDB_MAX,
 154 };
 155 #define MDBA_MDB_MAX (__MDBA_MDB_MAX - 1)
 156
 157 enum {
 158         MDBA_MDB_ENTRY_UNSPEC,
 159         MDBA_MDB_ENTRY_INFO,
 160         __MDBA_MDB_ENTRY_MAX,
 161 };
 162 #define MDBA_MDB_ENTRY_MAX (__MDBA_MDB_ENTRY_MAX - 1)
 163
 164 enum {
 165         MDBA_ROUTER_UNSPEC,
 166         MDBA_ROUTER_PORT,
 167         __MDBA_ROUTER_MAX,
 168 };
 169 #define MDBA_ROUTER_MAX (__MDBA_ROUTER_MAX - 1)
 170
 171 struct br_port_msg {
 172         __u8  family;
 173         __u32 ifindex;
 174 };
 175
 176 struct br_mdb_entry {
 177         __u32 ifindex;
 178 #define MDB_TEMPORARY 0
 179 #define MDB_PERMANENT 1
 180         __u8 state;
 181         struct {
 182                 union {
 183                         __be32  ip4;
 184                         struct in6_addr ip6;
 185                 } u;
 186                 __be16          proto;
 187         } addr;
 188 };
 189
 190 enum {
 191         MDBA_SET_ENTRY_UNSPEC,
 192         MDBA_SET_ENTRY,
 193         __MDBA_SET_ENTRY_MAX,
 194 };
 195 #define MDBA_SET_ENTRY_MAX (__MDBA_SET_ENTRY_MAX - 1)
 196
 197 #endif /* _UAPI_LINUX_IF_BRIDGE_H */