2 * Linux ethernet bridge
5 * Lennert Buytenhek <buytenh@gnu.org>
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.
13 #ifndef _BR_PRIVATE_STP_H
14 #define _BR_PRIVATE_STP_H
16 #define BPDU_TYPE_CONFIG 0
17 #define BPDU_TYPE_TCN 0x80
21 unsigned topology_change:1;
22 unsigned topology_change_ack:1;
33 /* called under bridge lock */
34 static inline int br_is_designated_port(const struct net_bridge_port *p)
36 return !memcmp(&p->designated_bridge, &p->br->bridge_id, 8) &&
37 (p->designated_port == p->port_id);
42 extern void br_become_root_bridge(struct net_bridge *br);
43 extern void br_config_bpdu_generation(struct net_bridge *);
44 extern void br_configuration_update(struct net_bridge *);
45 extern void br_port_state_selection(struct net_bridge *);
46 extern void br_received_config_bpdu(struct net_bridge_port *p, struct br_config_bpdu *bpdu);
47 extern void br_received_tcn_bpdu(struct net_bridge_port *p);
48 extern void br_transmit_config(struct net_bridge_port *p);
49 extern void br_transmit_tcn(struct net_bridge *br);
50 extern void br_topology_change_detection(struct net_bridge *br);
53 extern void br_send_config_bpdu(struct net_bridge_port *, struct br_config_bpdu *);
54 extern void br_send_tcn_bpdu(struct net_bridge_port *);