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   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
  18 #define SYSFS_BRIDGE_ATTR       "bridge"
  19 #define SYSFS_BRIDGE_FDB        "brforward"
  20 #define SYSFS_BRIDGE_PORT_SUBDIR "brif"
  21 #define SYSFS_BRIDGE_PORT_ATTR  "brport"
  22 #define SYSFS_BRIDGE_PORT_LINK  "bridge"
  23
  24 #define BRCTL_VERSION 1
  25
  26 #define BRCTL_GET_VERSION 0
  27 #define BRCTL_GET_BRIDGES 1
  28 #define BRCTL_ADD_BRIDGE 2
  29 #define BRCTL_DEL_BRIDGE 3
  30 #define BRCTL_ADD_IF 4
  31 #define BRCTL_DEL_IF 5
  32 #define BRCTL_GET_BRIDGE_INFO 6
  33 #define BRCTL_GET_PORT_LIST 7
  34 #define BRCTL_SET_BRIDGE_FORWARD_DELAY 8
  35 #define BRCTL_SET_BRIDGE_HELLO_TIME 9
  36 #define BRCTL_SET_BRIDGE_MAX_AGE 10
  37 #define BRCTL_SET_AGEING_TIME 11
  38 #define BRCTL_SET_GC_INTERVAL 12
  39 #define BRCTL_GET_PORT_INFO 13
  40 #define BRCTL_SET_BRIDGE_STP_STATE 14
  41 #define BRCTL_SET_BRIDGE_PRIORITY 15
  42 #define BRCTL_SET_PORT_PRIORITY 16
  43 #define BRCTL_SET_PATH_COST 17
  44 #define BRCTL_GET_FDB_ENTRIES 18
  45
  46 #define BR_STATE_DISABLED 0
  47 #define BR_STATE_LISTENING 1
  48 #define BR_STATE_LEARNING 2
  49 #define BR_STATE_FORWARDING 3
  50 #define BR_STATE_BLOCKING 4
  51
  52 struct __bridge_info
  53 {
  54         __u64 designated_root;
  55         __u64 bridge_id;
  56         __u32 root_path_cost;
  57         __u32 max_age;
  58         __u32 hello_time;
  59         __u32 forward_delay;
  60         __u32 bridge_max_age;
  61         __u32 bridge_hello_time;
  62         __u32 bridge_forward_delay;
  63         __u8 topology_change;
  64         __u8 topology_change_detected;
  65         __u8 root_port;
  66         __u8 stp_enabled;
  67         __u32 ageing_time;
  68         __u32 gc_interval;
  69         __u32 hello_timer_value;
  70         __u32 tcn_timer_value;
  71         __u32 topology_change_timer_value;
  72         __u32 gc_timer_value;
  73 };
  74
  75 struct __port_info
  76 {
  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 {
  94         __u8 mac_addr[6];
  95         __u8 port_no;
  96         __u8 is_local;
  97         __u32 ageing_timer_value;
  98         __u8 port_hi;
  99         __u8 pad0;
 100         __u16 unused;
 101 };
 102
 103 #ifdef __KERNEL__
 104
 105 #include <linux/netdevice.h>
 106
 107 extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __user *));
 108 extern struct sk_buff *(*br_handle_frame_hook)(struct net_bridge_port *p,
 109                                                struct sk_buff *skb);
 110 extern int (*br_should_route_hook)(struct sk_buff *skb);
 111
 112 #endif
 113
 114 #endif