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/*

 *      Linux ethernet bridge

 *

 *      Authors:

 *      Lennert Buytenhek               <buytenh@gnu.org>

 *

 *      This program is free software; you can redistribute it and/or

 *      modify it under the terms of the GNU General Public License

 *      as published by the Free Software Foundation; either version

 *      2 of the License, or (at your option) any later version.

 */

#ifndef _LINUX_IF_BRIDGE_H

#define _LINUX_IF_BRIDGE_H

#include <linux/types.h>

#include <linux/if_ether.h>

#define SYSFS_BRIDGE_ATTR       "bridge"

#define SYSFS_BRIDGE_FDB        "brforward"

#define SYSFS_BRIDGE_PORT_SUBDIR "brif"

#define SYSFS_BRIDGE_PORT_ATTR  "brport"

#define SYSFS_BRIDGE_PORT_LINK  "bridge"

#define BRCTL_VERSION 1

#define BRCTL_GET_VERSION 0

#define BRCTL_GET_BRIDGES 1

#define BRCTL_ADD_BRIDGE 2

#define BRCTL_DEL_BRIDGE 3

#define BRCTL_ADD_IF 4

#define BRCTL_DEL_IF 5

#define BRCTL_GET_BRIDGE_INFO 6

#define BRCTL_GET_PORT_LIST 7

#define BRCTL_SET_BRIDGE_FORWARD_DELAY 8

#define BRCTL_SET_BRIDGE_HELLO_TIME 9

#define BRCTL_SET_BRIDGE_MAX_AGE 10

#define BRCTL_SET_AGEING_TIME 11

#define BRCTL_SET_GC_INTERVAL 12

#define BRCTL_GET_PORT_INFO 13

#define BRCTL_SET_BRIDGE_STP_STATE 14

#define BRCTL_SET_BRIDGE_PRIORITY 15

#define BRCTL_SET_PORT_PRIORITY 16

#define BRCTL_SET_PATH_COST 17

#define BRCTL_GET_FDB_ENTRIES 18

#define BR_STATE_DISABLED 0

#define BR_STATE_LISTENING 1

#define BR_STATE_LEARNING 2

#define BR_STATE_FORWARDING 3

#define BR_STATE_BLOCKING 4

struct __bridge_info {

        __u64 designated_root;

        __u64 bridge_id;

        __u32 root_path_cost;

        __u32 max_age;

        __u32 hello_time;

        __u32 forward_delay;

        __u32 bridge_max_age;

        __u32 bridge_hello_time;

        __u32 bridge_forward_delay;

        __u8 topology_change;

        __u8 topology_change_detected;

        __u8 root_port;

        __u8 stp_enabled;

        __u32 ageing_time;

        __u32 gc_interval;

        __u32 hello_timer_value;

        __u32 tcn_timer_value;

        __u32 topology_change_timer_value;

        __u32 gc_timer_value;

};

struct __port_info {

        __u64 designated_root;

        __u64 designated_bridge;

        __u16 port_id;

        __u16 designated_port;

        __u32 path_cost;

        __u32 designated_cost;

        __u8 state;

        __u8 top_change_ack;

        __u8 config_pending;

        __u8 unused0;

        __u32 message_age_timer_value;

        __u32 forward_delay_timer_value;

        __u32 hold_timer_value;

};

struct __fdb_entry {

        __u8 mac_addr[ETH_ALEN];

        __u8 port_no;

        __u8 is_local;

        __u32 ageing_timer_value;

        __u8 port_hi;

        __u8 pad0;

        __u16 unused;

};

/* Bridge Flags */

#define BRIDGE_FLAGS_MASTER     1       /* Bridge command to/from master */

#define BRIDGE_FLAGS_SELF       2       /* Bridge command to/from lowerdev */

#define BRIDGE_MODE_VEB         0        /* Default loopback mode */

#define BRIDGE_MODE_VEPA        1       /* 802.1Qbg defined VEPA mode */

/* Bridge management nested attributes

 * [IFLA_AF_SPEC] = {

 *     [IFLA_BRIDGE_FLAGS]

 *     [IFLA_BRIDGE_MODE]

 *     [IFLA_BRIDGE_VLAN_INFO]

 * }

 */

enum {

        IFLA_BRIDGE_FLAGS,

        IFLA_BRIDGE_MODE,

        IFLA_BRIDGE_VLAN_INFO,

        __IFLA_BRIDGE_MAX,

};

#define IFLA_BRIDGE_MAX (__IFLA_BRIDGE_MAX - 1)

#define BRIDGE_VLAN_INFO_MASTER (1<<0)  /* Operate on Bridge device as well */

#define BRIDGE_VLAN_INFO_PVID   (1<<1)  /* VLAN is PVID, ingress untagged */

#define BRIDGE_VLAN_INFO_UNTAGGED       (1<<2)  /* VLAN egresses untagged */

struct bridge_vlan_info {

        __u16 flags;

        __u16 vid;

};

/* Bridge multicast database attributes

 * [MDBA_MDB] = {

 *     [MDBA_MDB_ENTRY] = {

 *         [MDBA_MDB_ENTRY_INFO]

 *     }

 * }

 * [MDBA_ROUTER] = {

 *    [MDBA_ROUTER_PORT]

 * }

 */

enum {

        MDBA_UNSPEC,

        MDBA_MDB,

        MDBA_ROUTER,

        __MDBA_MAX,

};

#define MDBA_MAX (__MDBA_MAX - 1)

enum {

        MDBA_MDB_UNSPEC,

        MDBA_MDB_ENTRY,

        __MDBA_MDB_MAX,

};

#define MDBA_MDB_MAX (__MDBA_MDB_MAX - 1)

enum {

        MDBA_MDB_ENTRY_UNSPEC,

        MDBA_MDB_ENTRY_INFO,

        __MDBA_MDB_ENTRY_MAX,

};

#define MDBA_MDB_ENTRY_MAX (__MDBA_MDB_ENTRY_MAX - 1)

enum {

        MDBA_ROUTER_UNSPEC,

        MDBA_ROUTER_PORT,

        __MDBA_ROUTER_MAX,

};

#define MDBA_ROUTER_MAX (__MDBA_ROUTER_MAX - 1)

struct br_port_msg {

        __u8  family;

        __u32 ifindex;

};

struct br_mdb_entry {

        __u32 ifindex;

#define MDB_TEMPORARY 0

#define MDB_PERMANENT 1

        __u8 state;

        struct {

                union {

                        __be32  ip4;

                        struct in6_addr ip6;

                } u;

                __be16          proto;

        } addr;

};

enum {

        MDBA_SET_ENTRY_UNSPEC,

        MDBA_SET_ENTRY,

        __MDBA_SET_ENTRY_MAX,

};

#define MDBA_SET_ENTRY_MAX (__MDBA_SET_ENTRY_MAX - 1)

#endif /* _LINUX_IF_BRIDGE_H */