46 void br_stp_enable_bridge(struct net_bridge *br)  in br_stp_enable_bridge()  argument
50 	spin_lock_bh(&br->lock);  in br_stp_enable_bridge()
51 	mod_timer(&br->hello_timer, jiffies + br->hello_time);  in br_stp_enable_bridge()
52 	mod_timer(&br->gc_timer, jiffies + HZ/10);  in br_stp_enable_bridge()
54 	br_config_bpdu_generation(br);  in br_stp_enable_bridge()
56 	list_for_each_entry(p, &br->port_list, list) {  in br_stp_enable_bridge()
61 	spin_unlock_bh(&br->lock);  in br_stp_enable_bridge()
65 void br_stp_disable_bridge(struct net_bridge *br)  in br_stp_disable_bridge()  argument
69 	spin_lock_bh(&br->lock);  in br_stp_disable_bridge()
70 	list_for_each_entry(p, &br->port_list, list) {  in br_stp_disable_bridge()
76 	br->topology_change = 0;  in br_stp_disable_bridge()
77 	br->topology_change_detected = 0;  in br_stp_disable_bridge()
78 	spin_unlock_bh(&br->lock);  in br_stp_disable_bridge()
80 	del_timer_sync(&br->hello_timer);  in br_stp_disable_bridge()
81 	del_timer_sync(&br->topology_change_timer);  in br_stp_disable_bridge()
82 	del_timer_sync(&br->tcn_timer);  in br_stp_disable_bridge()
83 	del_timer_sync(&br->gc_timer);  in br_stp_disable_bridge()
90 	br_port_state_selection(p->br);  in br_stp_enable_port()
98 	struct net_bridge *br = p->br;  in br_stp_disable_port()  local
101 	wasroot = br_is_root_bridge(br);  in br_stp_disable_port()
114 	br_fdb_delete_by_port(br, p, 0);  in br_stp_disable_port()
117 	br_configuration_update(br);  in br_stp_disable_port()
119 	br_port_state_selection(br);  in br_stp_disable_port()
121 	if (br_is_root_bridge(br) && !wasroot)  in br_stp_disable_port()
122 		br_become_root_bridge(br);  in br_stp_disable_port()
125 static void br_stp_start(struct net_bridge *br)  in br_stp_start()  argument
128 	char *argv[] = { BR_STP_PROG, br->dev->name, "start", NULL };  in br_stp_start()
131 	if (net_eq(dev_net(br->dev), &init_net))  in br_stp_start()
136 	spin_lock_bh(&br->lock);  in br_stp_start()
138 	if (br->bridge_forward_delay < BR_MIN_FORWARD_DELAY)  in br_stp_start()
139 		__br_set_forward_delay(br, BR_MIN_FORWARD_DELAY);  in br_stp_start()
140 	else if (br->bridge_forward_delay > BR_MAX_FORWARD_DELAY)  in br_stp_start()
141 		__br_set_forward_delay(br, BR_MAX_FORWARD_DELAY);  in br_stp_start()
144 		br->stp_enabled = BR_USER_STP;  in br_stp_start()
145 		br_debug(br, "userspace STP started\n");  in br_stp_start()
147 		br->stp_enabled = BR_KERNEL_STP;  in br_stp_start()
148 		br_debug(br, "using kernel STP\n");  in br_stp_start()
151 		br_port_state_selection(br);  in br_stp_start()
154 	spin_unlock_bh(&br->lock);  in br_stp_start()
157 static void br_stp_stop(struct net_bridge *br)  in br_stp_stop()  argument
160 	char *argv[] = { BR_STP_PROG, br->dev->name, "stop", NULL };  in br_stp_stop()
163 	if (br->stp_enabled == BR_USER_STP) {  in br_stp_stop()
165 		br_info(br, "userspace STP stopped, return code %d\n", r);  in br_stp_stop()
168 		spin_lock_bh(&br->lock);  in br_stp_stop()
169 		br_port_state_selection(br);  in br_stp_stop()
170 		spin_unlock_bh(&br->lock);  in br_stp_stop()
173 	br->stp_enabled = BR_NO_STP;  in br_stp_stop()
176 void br_stp_set_enabled(struct net_bridge *br, unsigned long val)  in br_stp_set_enabled()  argument
181 		if (br->stp_enabled == BR_NO_STP)  in br_stp_set_enabled()
182 			br_stp_start(br);  in br_stp_set_enabled()
184 		if (br->stp_enabled != BR_NO_STP)  in br_stp_set_enabled()
185 			br_stp_stop(br);  in br_stp_set_enabled()
190 void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *addr)  in br_stp_change_bridge_id()  argument
198 	wasroot = br_is_root_bridge(br);  in br_stp_change_bridge_id()
200 	br_fdb_change_mac_address(br, addr);  in br_stp_change_bridge_id()
202 	memcpy(oldaddr, br->bridge_id.addr, ETH_ALEN);  in br_stp_change_bridge_id()
203 	memcpy(br->bridge_id.addr, addr, ETH_ALEN);  in br_stp_change_bridge_id()
204 	memcpy(br->dev->dev_addr, addr, ETH_ALEN);  in br_stp_change_bridge_id()
206 	list_for_each_entry(p, &br->port_list, list) {  in br_stp_change_bridge_id()
214 	br_configuration_update(br);  in br_stp_change_bridge_id()
215 	br_port_state_selection(br);  in br_stp_change_bridge_id()
216 	if (br_is_root_bridge(br) && !wasroot)  in br_stp_change_bridge_id()
217 		br_become_root_bridge(br);  in br_stp_change_bridge_id()
224 bool br_stp_recalculate_bridge_id(struct net_bridge *br)  in br_stp_recalculate_bridge_id()  argument
232 	if (br->dev->addr_assign_type == NET_ADDR_SET)  in br_stp_recalculate_bridge_id()
235 	list_for_each_entry(p, &br->port_list, list) {  in br_stp_recalculate_bridge_id()
242 	if (ether_addr_equal(br->bridge_id.addr, addr))  in br_stp_recalculate_bridge_id()
245 	br_stp_change_bridge_id(br, addr);  in br_stp_recalculate_bridge_id()
250 void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio)  in br_stp_set_bridge_priority()  argument
255 	spin_lock_bh(&br->lock);  in br_stp_set_bridge_priority()
256 	wasroot = br_is_root_bridge(br);  in br_stp_set_bridge_priority()
258 	list_for_each_entry(p, &br->port_list, list) {  in br_stp_set_bridge_priority()
267 	br->bridge_id.prio[0] = (newprio >> 8) & 0xFF;  in br_stp_set_bridge_priority()
268 	br->bridge_id.prio[1] = newprio & 0xFF;  in br_stp_set_bridge_priority()
269 	br_configuration_update(br);  in br_stp_set_bridge_priority()
270 	br_port_state_selection(br);  in br_stp_set_bridge_priority()
271 	if (br_is_root_bridge(br) && !wasroot)  in br_stp_set_bridge_priority()
272 		br_become_root_bridge(br);  in br_stp_set_bridge_priority()
273 	spin_unlock_bh(&br->lock);  in br_stp_set_bridge_priority()
290 	if (!memcmp(&p->br->bridge_id, &p->designated_bridge, 8) &&  in br_stp_set_port_priority()
293 		br_port_state_selection(p->br);  in br_stp_set_port_priority()
308 	br_configuration_update(p->br);  in br_stp_set_path_cost()
309 	br_port_state_selection(p->br);  in br_stp_set_path_cost()