include/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 _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_VLAN_TUNNEL_INFO,
 122         __IFLA_BRIDGE_MAX,
 123 };
 124 #define IFLA_BRIDGE_MAX (__IFLA_BRIDGE_MAX - 1)
 125
 126 #define BRIDGE_VLAN_INFO_MASTER (1<<0)  /* Operate on Bridge device as well */
 127 #define BRIDGE_VLAN_INFO_PVID   (1<<1)  /* VLAN is PVID, ingress untagged */
 128 #define BRIDGE_VLAN_INFO_UNTAGGED       (1<<2)  /* VLAN egresses untagged */
 129 #define BRIDGE_VLAN_INFO_RANGE_BEGIN    (1<<3) /* VLAN is start of vlan range */
 130 #define BRIDGE_VLAN_INFO_RANGE_END      (1<<4) /* VLAN is end of vlan range */
 131 #define BRIDGE_VLAN_INFO_BRENTRY        (1<<5) /* Global bridge VLAN entry */
 132
 133 struct bridge_vlan_info {
 134         __u16 flags;
 135         __u16 vid;
 136 };
 137
 138 enum {
 139         IFLA_BRIDGE_VLAN_TUNNEL_UNSPEC,
 140         IFLA_BRIDGE_VLAN_TUNNEL_ID,
 141         IFLA_BRIDGE_VLAN_TUNNEL_VID,
 142         IFLA_BRIDGE_VLAN_TUNNEL_FLAGS,
 143         __IFLA_BRIDGE_VLAN_TUNNEL_MAX,
 144 };
 145
 146 #define IFLA_BRIDGE_VLAN_TUNNEL_MAX (__IFLA_BRIDGE_VLAN_TUNNEL_MAX - 1)
 147
 148 struct bridge_vlan_xstats {
 149         __u64 rx_bytes;
 150         __u64 rx_packets;
 151         __u64 tx_bytes;
 152         __u64 tx_packets;
 153         __u16 vid;
 154         __u16 flags;
 155         __u32 pad2;
 156 };
 157
 158 /* Bridge multicast database attributes
 159  * [MDBA_MDB] = {
 160  *     [MDBA_MDB_ENTRY] = {
 161  *         [MDBA_MDB_ENTRY_INFO] {
 162  *              struct br_mdb_entry
 163  *              [MDBA_MDB_EATTR attributes]
 164  *         }
 165  *     }
 166  * }
 167  * [MDBA_ROUTER] = {
 168  *    [MDBA_ROUTER_PORT] = {
 169  *        u32 ifindex
 170  *        [MDBA_ROUTER_PATTR attributes]
 171  *    }
 172  * }
 173  */
 174 enum {
 175         MDBA_UNSPEC,
 176         MDBA_MDB,
 177         MDBA_ROUTER,
 178         __MDBA_MAX,
 179 };
 180 #define MDBA_MAX (__MDBA_MAX - 1)
 181
 182 enum {
 183         MDBA_MDB_UNSPEC,
 184         MDBA_MDB_ENTRY,
 185         __MDBA_MDB_MAX,
 186 };
 187 #define MDBA_MDB_MAX (__MDBA_MDB_MAX - 1)
 188
 189 enum {
 190         MDBA_MDB_ENTRY_UNSPEC,
 191         MDBA_MDB_ENTRY_INFO,
 192         __MDBA_MDB_ENTRY_MAX,
 193 };
 194 #define MDBA_MDB_ENTRY_MAX (__MDBA_MDB_ENTRY_MAX - 1)
 195
 196 /* per mdb entry additional attributes */
 197 enum {
 198         MDBA_MDB_EATTR_UNSPEC,
 199         MDBA_MDB_EATTR_TIMER,
 200         __MDBA_MDB_EATTR_MAX
 201 };
 202 #define MDBA_MDB_EATTR_MAX (__MDBA_MDB_EATTR_MAX - 1)
 203
 204 /* multicast router types */
 205 enum {
 206         MDB_RTR_TYPE_DISABLED,
 207         MDB_RTR_TYPE_TEMP_QUERY,
 208         MDB_RTR_TYPE_PERM,
 209         MDB_RTR_TYPE_TEMP
 210 };
 211
 212 enum {
 213         MDBA_ROUTER_UNSPEC,
 214         MDBA_ROUTER_PORT,
 215         __MDBA_ROUTER_MAX,
 216 };
 217 #define MDBA_ROUTER_MAX (__MDBA_ROUTER_MAX - 1)
 218
 219 /* router port attributes */
 220 enum {
 221         MDBA_ROUTER_PATTR_UNSPEC,
 222         MDBA_ROUTER_PATTR_TIMER,
 223         MDBA_ROUTER_PATTR_TYPE,
 224         __MDBA_ROUTER_PATTR_MAX
 225 };
 226 #define MDBA_ROUTER_PATTR_MAX (__MDBA_ROUTER_PATTR_MAX - 1)
 227
 228 struct br_port_msg {
 229         __u8  family;
 230         __u32 ifindex;
 231 };
 232
 233 struct br_mdb_entry {
 234         __u32 ifindex;
 235 #define MDB_TEMPORARY 0
 236 #define MDB_PERMANENT 1
 237         __u8 state;
 238 #define MDB_FLAGS_OFFLOAD       (1 << 0)
 239         __u8 flags;
 240         __u16 vid;
 241         struct {
 242                 union {
 243                         __be32  ip4;
 244                         struct in6_addr ip6;
 245                 } u;
 246                 __be16          proto;
 247         } addr;
 248 };
 249
 250 enum {
 251         MDBA_SET_ENTRY_UNSPEC,
 252         MDBA_SET_ENTRY,
 253         __MDBA_SET_ENTRY_MAX,
 254 };
 255 #define MDBA_SET_ENTRY_MAX (__MDBA_SET_ENTRY_MAX - 1)
 256
 257 /* Embedded inside LINK_XSTATS_TYPE_BRIDGE */
 258 enum {
 259         BRIDGE_XSTATS_UNSPEC,
 260         BRIDGE_XSTATS_VLAN,
 261         BRIDGE_XSTATS_MCAST,
 262         BRIDGE_XSTATS_PAD,
 263         __BRIDGE_XSTATS_MAX
 264 };
 265 #define BRIDGE_XSTATS_MAX (__BRIDGE_XSTATS_MAX - 1)
 266
 267 enum {
 268         BR_MCAST_DIR_RX,
 269         BR_MCAST_DIR_TX,
 270         BR_MCAST_DIR_SIZE
 271 };
 272
 273 /* IGMP/MLD statistics */
 274 struct br_mcast_stats {
 275         __u64 igmp_v1queries[BR_MCAST_DIR_SIZE];
 276         __u64 igmp_v2queries[BR_MCAST_DIR_SIZE];
 277         __u64 igmp_v3queries[BR_MCAST_DIR_SIZE];
 278         __u64 igmp_leaves[BR_MCAST_DIR_SIZE];
 279         __u64 igmp_v1reports[BR_MCAST_DIR_SIZE];
 280         __u64 igmp_v2reports[BR_MCAST_DIR_SIZE];
 281         __u64 igmp_v3reports[BR_MCAST_DIR_SIZE];
 282         __u64 igmp_parse_errors;
 283
 284         __u64 mld_v1queries[BR_MCAST_DIR_SIZE];
 285         __u64 mld_v2queries[BR_MCAST_DIR_SIZE];
 286         __u64 mld_leaves[BR_MCAST_DIR_SIZE];
 287         __u64 mld_v1reports[BR_MCAST_DIR_SIZE];
 288         __u64 mld_v2reports[BR_MCAST_DIR_SIZE];
 289         __u64 mld_parse_errors;
 290
 291         __u64 mcast_bytes[BR_MCAST_DIR_SIZE];
 292         __u64 mcast_packets[BR_MCAST_DIR_SIZE];
 293 };
 294 #endif /* _LINUX_IF_BRIDGE_H */