/*
* Linux ethernet bridge
*
* Authors:
* Lennert Buytenhek <[email protected]>
*
* 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 _UAPI_LINUX_IF_BRIDGE_H
#define _UAPI_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 /* _UAPI_LINUX_IF_BRIDGE_H */