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      1 /*
      2  *	Linux ethernet bridge
      3  *
      4  *	Authors:
      5  *	Lennert Buytenhek		<buytenh (at) gnu.org>
      6  *
      7  *	$Id: if_bridge.h,v 1.1 2000/02/18 16:47:01 davem Exp $
      8  *
      9  *	This program is free software; you can redistribute it and/or
     10  *	modify it under the terms of the GNU General Public License
     11  *	as published by the Free Software Foundation; either version
     12  *	2 of the License, or (at your option) any later version.
     13  */
     14 
     15 #ifndef _LINUX_IF_BRIDGE_H
     16 #define _LINUX_IF_BRIDGE_H
     17 
     18 #include <linux/types.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 {
     56 	__u64 designated_root;
     57 	__u64 bridge_id;
     58 	__u32 root_path_cost;
     59 	__u32 max_age;
     60 	__u32 hello_time;
     61 	__u32 forward_delay;
     62 	__u32 bridge_max_age;
     63 	__u32 bridge_hello_time;
     64 	__u32 bridge_forward_delay;
     65 	__u8 topology_change;
     66 	__u8 topology_change_detected;
     67 	__u8 root_port;
     68 	__u8 stp_enabled;
     69 	__u32 ageing_time;
     70 	__u32 gc_interval;
     71 	__u32 hello_timer_value;
     72 	__u32 tcn_timer_value;
     73 	__u32 topology_change_timer_value;
     74 	__u32 gc_timer_value;
     75 };
     76 
     77 struct __port_info
     78 {
     79 	__u64 designated_root;
     80 	__u64 designated_bridge;
     81 	__u16 port_id;
     82 	__u16 designated_port;
     83 	__u32 path_cost;
     84 	__u32 designated_cost;
     85 	__u8 state;
     86 	__u8 top_change_ack;
     87 	__u8 config_pending;
     88 	__u8 unused0;
     89 	__u32 message_age_timer_value;
     90 	__u32 forward_delay_timer_value;
     91 	__u32 hold_timer_value;
     92 };
     93 
     94 struct __fdb_entry
     95 {
     96 	__u8 mac_addr[6];
     97 	__u8 port_no;
     98 	__u8 is_local;
     99 	__u32 ageing_timer_value;
    100 	__u32 unused;
    101 };
    102 
    103 #ifdef __KERNEL__
    104 
    105 #include <linux/netdevice.h>
    106 
    107 extern void brioctl_set(int (*ioctl_hook)(unsigned int, void __user *));
    108 extern int (*br_handle_frame_hook)(struct net_bridge_port *p, struct sk_buff **pskb);
    109 extern int (*br_should_route_hook)(struct sk_buff **pskb);
    110 
    111 #endif
    112 
    113 #endif
    114