C++ (Cpp) br_configuration_update Examples

Example #1

/* called under bridge lock */
static void br_stp_change_bridge_id(struct net_bridge *br, unsigned char *addr)
{
	unsigned char oldaddr[6];
	struct net_bridge_port *p;
	int wasroot;

	wasroot = br_is_root_bridge(br);

	memcpy(oldaddr, br->bridge_id.addr, ETH_ALEN);
	memcpy(br->bridge_id.addr, addr, ETH_ALEN);
	memcpy(br->dev.dev_addr, addr, ETH_ALEN);

	p = br->port_list;
	while (p != NULL) {
		if (!memcmp(p->designated_bridge.addr, oldaddr, ETH_ALEN))
			memcpy(p->designated_bridge.addr, addr, ETH_ALEN);

		if (!memcmp(p->designated_root.addr, oldaddr, ETH_ALEN))
			memcpy(p->designated_root.addr, addr, ETH_ALEN);

		p = p->next;
	}

	br_configuration_update(br);
	br_port_state_selection(br);
	if (br_is_root_bridge(br) && !wasroot)
		br_become_root_bridge(br);
}

Example #2

File: br_stp.c Project: cilynx/dd-wrt

/* lock-safe */
void br_received_config_bpdu(struct net_bridge_port *p, struct br_config_bpdu *bpdu)
{
	struct net_bridge *br;
	int was_root;

	if (p->state == BR_STATE_DISABLED)
		return;

	br = p->br;
	read_lock(&br->lock);

	was_root = br_is_root_bridge(br);
	if (br_supersedes_port_info(p, bpdu)) {
		br_record_config_information(p, bpdu);
		br_configuration_update(br);
		br_port_state_selection(br);

		if (!br_is_root_bridge(br) && was_root) {
			br_timer_clear(&br->hello_timer);
			if (br->topology_change_detected) {
				br_timer_clear(&br->topology_change_timer);
				br_transmit_tcn(br);
				br_timer_set(&br->tcn_timer, jiffies);
			}
		}

		if (p->port_no == br->root_port) {
			br_record_config_timeout_values(br, bpdu);
			br_config_bpdu_generation(br);
			if (bpdu->topology_change_ack)
				br_topology_change_acknowledged(br);
		}
	} else if (br_is_designated_port(p)) {		
		br_reply(p);		
	}

	read_unlock(&br->lock);
}

Example #3

/* called under bridge lock */
void br_stp_disable_port(struct net_bridge_port *p)
{
	struct net_bridge *br;
	int wasroot;

	br = p->br;
	printk(KERN_INFO "%s: port %i(%s) entering %s state\n",
	       br->dev.name, p->port_no, p->dev->name, "disabled");

	wasroot = br_is_root_bridge(br);
	br_become_designated_port(p);
	p->state = BR_STATE_DISABLED;
	p->topology_change_ack = 0;
	p->config_pending = 0;
	br_timer_clear(&p->message_age_timer);
	br_timer_clear(&p->forward_delay_timer);
	br_timer_clear(&p->hold_timer);
	br_configuration_update(br);
	br_port_state_selection(br);

	if (br_is_root_bridge(br) && !wasroot)
		br_become_root_bridge(br);
}

Example #4

File: br_stp_timer.c Project: JBTech/ralink_rt5350

/* called under bridge lock */
static void br_message_age_timer_expired(struct net_bridge_port *p)
{
	struct net_bridge *br;
	int was_root;

	br = p->br;
	printk(KERN_INFO "%s: ", br->dev.name);
	printk("neighbour ");
	dump_bridge_id(&p->designated_bridge);
	printk(" lost on port %i(%s)\n", p->port_no, p->dev->name);

	/*
	 * According to the spec, the message age timer cannot be
	 * running when we are the root bridge. So..  this was_root
	 * check is redundant. I'm leaving it in for now, though.
	 */
	was_root = br_is_root_bridge(br);

	br_become_designated_port(p);
	br_configuration_update(br);
	br_port_state_selection(br);
	if (br_is_root_bridge(br) && !was_root)
		br_become_root_bridge(br);
}