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