Function igmp_v1v2_process_group_timer

freebsd/netinet/igmp.c:1800–1839

* Update host report group timer for IGMPv1/v2. * Will update the global pending timer flags. */

 * Will update the global pending timer flags.
 */
static void
igmp_v1v2_process_group_timer(struct in_multi *inm, const int version)
{
	int report_timer_expired;

	IN_MULTI_LIST_LOCK_ASSERT();
	IGMP_LOCK_ASSERT();

	if (inm->inm_timer == 0) {
		report_timer_expired = 0;
	} else if (--inm->inm_timer == 0) {
		report_timer_expired = 1;
	} else {
		V_current_state_timers_running = 1;
		return;
	}

	switch (inm->inm_state) {
	case IGMP_NOT_MEMBER:
	case IGMP_SILENT_MEMBER:
	case IGMP_IDLE_MEMBER:
	case IGMP_LAZY_MEMBER:
	case IGMP_SLEEPING_MEMBER:
	case IGMP_AWAKENING_MEMBER:
		break;
	case IGMP_REPORTING_MEMBER:
		if (report_timer_expired) {
			inm->inm_state = IGMP_IDLE_MEMBER;
			(void)igmp_v1v2_queue_report(inm,
			    (version == IGMP_VERSION_2) ?
			     IGMP_v2_HOST_MEMBERSHIP_REPORT :
			     IGMP_v1_HOST_MEMBERSHIP_REPORT);
		}
		break;
	case IGMP_G_QUERY_PENDING_MEMBER:
	case IGMP_SG_QUERY_PENDING_MEMBER:
	case IGMP_LEAVING_MEMBER:
		break;
	}
}

/*
 * Update a group's timers for IGMPv3.