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br_private_stp.h
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:2k
源码类别:
Linux/Unix编程
开发平台:
Unix_Linux
- /*
- * Linux ethernet bridge
- *
- * Authors:
- * Lennert Buytenhek <buytenh@gnu.org>
- *
- * $Id: br_private_stp.h,v 1.3 2001/02/05 06:03:47 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 */
- extern void br_become_root_bridge(struct net_bridge *br);
- extern void br_config_bpdu_generation(struct net_bridge *);
- extern void br_configuration_update(struct net_bridge *);
- extern int br_is_designated_port(struct net_bridge_port *p);
- extern int br_is_root_bridge(struct net_bridge *br);
- extern void br_port_state_selection(struct net_bridge *);
- extern void br_received_config_bpdu(struct net_bridge_port *p, struct br_config_bpdu *bpdu);
- extern void br_received_tcn_bpdu(struct net_bridge_port *p);
- extern void br_tick(unsigned long __data);
- extern void br_transmit_config(struct net_bridge_port *p);
- extern void br_transmit_tcn(struct net_bridge *br);
- extern void br_topology_change_detection(struct net_bridge *br);
- /* br_stp_bpdu.c */
- extern void br_send_config_bpdu(struct net_bridge_port *, struct br_config_bpdu *);
- extern void br_send_tcn_bpdu(struct net_bridge_port *);
- #endif