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 #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
 129 struct bridge_vlan_info {
 130         __u16 flags;
 131         __u16 vid;
 132 };
 133
 134 /* Bridge multicast database attributes
 135  * [MDBA_MDB] = {
 136  *     [MDBA_MDB_ENTRY] = {
 137  *         [MDBA_MDB_ENTRY_INFO]
 138  *     }
 139  * }
 140  * [MDBA_ROUTER] = {
 141  *    [MDBA_ROUTER_PORT]
 142  * }
 143  */
 144 enum {
 145         MDBA_UNSPEC,
 146         MDBA_MDB,
 147         MDBA_ROUTER,
 148         __MDBA_MAX,
 149 };
 150 #define MDBA_MAX (__MDBA_MAX - 1)
 151
 152 enum {
 153         MDBA_MDB_UNSPEC,
 154         MDBA_MDB_ENTRY,
 155         __MDBA_MDB_MAX,
 156 };
 157 #define MDBA_MDB_MAX (__MDBA_MDB_MAX - 1)
 158
 159 enum {
 160         MDBA_MDB_ENTRY_UNSPEC,
 161         MDBA_MDB_ENTRY_INFO,
 162         __MDBA_MDB_ENTRY_MAX,
 163 };
 164 #define MDBA_MDB_ENTRY_MAX (__MDBA_MDB_ENTRY_MAX - 1)
 165
 166 enum {
 167         MDBA_ROUTER_UNSPEC,
 168         MDBA_ROUTER_PORT,
 169         __MDBA_ROUTER_MAX,
 170 };
 171 #define MDBA_ROUTER_MAX (__MDBA_ROUTER_MAX - 1)
 172
 173 struct br_port_msg {
 174         __u8  family;
 175         __u32 ifindex;
 176 };
 177
 178 struct br_mdb_entry {
 179         __u32 ifindex;
 180 #define MDB_TEMPORARY 0
 181 #define MDB_PERMANENT 1
 182         __u8 state;
 183         struct {
 184                 union {
 185                         __be32  ip4;
 186                         struct in6_addr ip6;
 187                 } u;
 188                 __be16          proto;
 189         } addr;
 190 };
 191
 192 enum {
 193         MDBA_SET_ENTRY_UNSPEC,
 194         MDBA_SET_ENTRY,
 195         __MDBA_SET_ENTRY_MAX,
 196 };
 197 #define MDBA_SET_ENTRY_MAX (__MDBA_SET_ENTRY_MAX - 1)
 198
 199 #endif /* _UAPI_LINUX_IF_BRIDGE_H */