Function timeout_stations

freebsd/net80211/ieee80211_node.c:2326–2443

}

static void
timeout_stations(void *arg __unused, struct ieee80211_node *ni)
{
	struct ieee80211com *ic = ni->ni_ic;
	struct ieee80211vap *vap = ni->ni_vap;

	/*
	 * Only process stations when in RUN state.  This
	 * insures, for example, that we don't timeout an
	 * inactive station during CAC.  Note that CSA state
	 * is actually handled in ieee80211_node_timeout as
	 * it applies to more than timeout processing.
	 */
	if (vap->iv_state != IEEE80211_S_RUN)
		return;
	/*
	 * Ignore entries for which have yet to receive an
	 * authentication frame.  These are transient and
	 * will be reclaimed when the last reference to them
	 * goes away (when frame xmits complete).
	 */
	if ((vap->iv_opmode == IEEE80211_M_HOSTAP ||
	     vap->iv_opmode == IEEE80211_M_STA) &&
	    (ni->ni_flags & IEEE80211_NODE_AREF) == 0)
		return;
	/*
	 * Free fragment if not needed anymore
	 * (last fragment older than 1s).
	 * XXX doesn't belong here, move to node_age
	 */
	if (ni->ni_rxfrag[0] != NULL &&
	    ticks > ni->ni_rxfragstamp + hz) {
		m_freem(ni->ni_rxfrag[0]);
		ni->ni_rxfrag[0] = NULL;
	}
	if (ni->ni_inact > 0) {
		ni->ni_inact--;
		IEEE80211_NOTE(vap, IEEE80211_MSG_INACT, ni,
		    "%s: inact %u inact_reload %u nrates %u",
		    __func__, ni->ni_inact, ni->ni_inact_reload,
		    ni->ni_rates.rs_nrates);
	}
	/*
	 * Special case ourself; we may be idle for extended periods
	 * of time and regardless reclaiming our state is wrong.
	 * XXX run ic_node_age
	 */
	/* XXX before inact decrement? */
	if (ni == vap->iv_bss)
		return;
	if (ni->ni_associd != 0 ||
	    (vap->iv_opmode == IEEE80211_M_IBSS ||
	     vap->iv_opmode == IEEE80211_M_AHDEMO)) {
		/*
		 * Age/drain resources held by the station.
		 */
		ic->ic_node_age(ni);
		/*