include/linux/if_bridge.h

   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         __u64 designated_root;
  54         __u64 bridge_id;
  55         __u32 root_path_cost;
  56         __u32 max_age;
  57         __u32 hello_time;
  58         __u32 forward_delay;
  59         __u32 bridge_max_age;
  60         __u32 bridge_hello_time;
  61         __u32 bridge_forward_delay;
  62         __u8 topology_change;
  63         __u8 topology_change_detected;
  64         __u8 root_port;
  65         __u8 stp_enabled;
  66         __u32 ageing_time;
  67         __u32 gc_interval;
  68         __u32 hello_timer_value;
  69         __u32 tcn_timer_value;
  70         __u32 topology_change_timer_value;
  71         __u32 gc_timer_value;
  72 };
  73
  74 struct __port_info {
  75         __u64 designated_root;
  76         __u64 designated_bridge;
  77         __u16 port_id;
  78         __u16 designated_port;
  79         __u32 path_cost;
  80         __u32 designated_cost;
  81         __u8 state;
  82         __u8 top_change_ack;
  83         __u8 config_pending;
  84         __u8 unused0;
  85         __u32 message_age_timer_value;
  86         __u32 forward_delay_timer_value;
  87         __u32 hold_timer_value;
  88 };
  89
  90 struct __fdb_entry {
  91         __u8 mac_addr[6];
  92         __u8 port_no;
  93         __u8 is_local;
  94         __u32 ageing_timer_value;
  95         __u8 port_hi;
  96         __u8 pad0;
  97         __u16 unused;
  98 };
  99
 100 #ifdef __KERNEL__
 101
 102 #include <linux/netdevice.h>
 103
 104 extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __user *));
 105 extern struct sk_buff *(*br_handle_frame_hook)(struct net_bridge_port *p,
 106                                                struct sk_buff *skb);
 107 extern int (*br_should_route_hook)(struct sk_buff *skb);
 108
 109 #endif
 110
 111 #endif