blob: 2857d5c913ec7c82dc4293c06b6c6af44a742ce7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
/*
* Linux ethernet bridge
*
* Authors:
* Lennert Buytenhek <buytenh@gnu.org>
*
* $Id: br_private_stp.h,v 1.2 2000/10/30 22:03:20 davem 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 _BR_PRIVATE_STP_H
#define _BR_PRIVATE_STP_H
#define BPDU_TYPE_CONFIG 0
#define BPDU_TYPE_TCN 0x80
struct br_config_bpdu
{
unsigned topology_change:1;
unsigned topology_change_ack:1;
bridge_id root;
int root_path_cost;
bridge_id bridge_id;
port_id port_id;
int message_age;
int max_age;
int hello_time;
int forward_delay;
};
/* br_stp.c */
void br_become_root_bridge(struct net_bridge *br);
void br_config_bpdu_generation(struct net_bridge *);
void br_configuration_update(struct net_bridge *);
int br_is_designated_port(struct net_bridge_port *p);
int br_is_root_bridge(struct net_bridge *br);
void br_port_state_selection(struct net_bridge *);
void br_received_config_bpdu(struct net_bridge_port *p, struct br_config_bpdu *bpdu);
void br_received_tcn_bpdu(struct net_bridge_port *p);
void br_tick(unsigned long __data);
void br_transmit_config(struct net_bridge_port *p);
void br_transmit_tcn(struct net_bridge *br);
void br_topology_change_detection(struct net_bridge *br);
/* br_stp_bpdu.c */
void br_send_config_bpdu(struct net_bridge_port *, struct br_config_bpdu *);
void br_send_tcn_bpdu(struct net_bridge_port *);
#endif
|
