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/*
 *      Linux ethernet bridge
 *
 *      Authors:
 *      Lennert Buytenhek               <buytenh@gnu.org>
 *
 *      $Id: if_bridge.h,v 1.1 2004-01-28 15:25:32 giacomo Exp $
 *
 *      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>

#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[6];
        __u8 port_no;
        __u8 is_local;
        __u32 ageing_timer_value;
        __u32 unused;
};

#ifdef __KERNEL__

#include <linux/netdevice.h>

struct net_bridge;
struct net_bridge_port;

extern void brioctl_set(int (*ioctl_hook)(unsigned long));
extern int (*br_handle_frame_hook)(struct sk_buff *skb);
extern int (*br_should_route_hook)(struct sk_buff **pskb);

#endif

#endif