Esempio n. 1
0
void
ieee80211_node_join(struct ieee80211com *ic, struct ieee80211_node *ni,
    int resp)
{
	int newassoc;

	if (ni->ni_associd == 0) {
		u_int16_t aid;

		/*
		 * It would be clever to search the bitmap
		 * more efficiently, but this will do for now.
		 */
		for (aid = 1; aid < ic->ic_max_aid; aid++) {
			if (!IEEE80211_AID_ISSET(aid,
			    ic->ic_aid_bitmap))
				break;
		}
		if (aid >= ic->ic_max_aid) {
			IEEE80211_SEND_MGMT(ic, ni, resp,
			    IEEE80211_REASON_ASSOC_TOOMANY);
			ieee80211_node_leave(ic, ni);
			return;
		}
		ni->ni_associd = aid | 0xc000;
		IEEE80211_AID_SET(ni->ni_associd, ic->ic_aid_bitmap);
		newassoc = 1;
		if (ic->ic_curmode == IEEE80211_MODE_11G)
			ieee80211_node_join_11g(ic, ni);
	} else
		newassoc = 0;

	IEEE80211_DPRINTF(("station %s %s associated at aid %d\n",
	    ether_sprintf(ni->ni_macaddr),
	    (newassoc ? "newly" : "already"),
	    ni->ni_associd & ~0xc000));

	/* give driver a chance to setup state like ni_txrate */
	if (ic->ic_newassoc)
		(*ic->ic_newassoc)(ic, ni, newassoc);
	IEEE80211_SEND_MGMT(ic, ni, resp, IEEE80211_STATUS_SUCCESS);
	ieee80211_node_newstate(ni, IEEE80211_STA_ASSOC);

#if NBRIDGE > 0
	/*
	 * If the parent interface belongs to a bridge, learn
	 * the node's address dynamically on this interface.
	 */
	if (ic->ic_if.if_bridge != NULL)
		bridge_update(&ic->ic_if,
		    (struct ether_addr *)ni->ni_macaddr, 0);
#endif
}
Esempio n. 2
0
/*
 * function to handle station joining infrastructure network.
 * used for AP mode vap only.
 */  
int ieee80211_node_join(struct ieee80211_node *ni)
{
    struct ieee80211com *ic = ni->ni_ic;
    struct ieee80211vap *vap = ni->ni_vap;

    IEEE80211_NODE_STATE_LOCK(ni);
    if (ni->ni_associd == 0) {
        u_int16_t aid;

        if (vap->iv_aid_bitmap == NULL || IEEE80211_IS_TDLS_NODE(ni)) {
            IEEE80211_NODE_STATE_UNLOCK(ni);
            return -1; /* vap is being deleted */
        }

        /*
         * It would be good to search the bitmap
         * more efficiently, but this will do for now.
         */
        if (!IEEE80211_IS_TDLS_NODE(ni)) {
        for (aid = 1; aid < vap->iv_max_aid; aid++) {
            if (!IEEE80211_AID_ISSET(vap, aid))
                break;
        }

        if (aid >= vap->iv_max_aid) {
            /*
             * Keep stats on this situation.
             */
            IEEE80211_DPRINTF(vap, IEEE80211_MSG_ASSOC, "aid (%d)"
                              " greater than max aid (%d)\n", aid,
                              vap->iv_max_aid);
            IEEE80211_NODE_STATE_UNLOCK(ni);
            IEEE80211_NODE_LEAVE(ni);
            return -1;
        }

        ni->ni_associd = aid | 0xc000;
        IEEE80211_AID_SET(vap, ni->ni_associd);
	} else {
            /* To keep the other parts of code happy. Otherwise the code assumes
             * node disconnected and tries to delete it.There are no associd for
            * TDLS nodes.
            */
            ni->ni_associd = vap->iv_bss->ni_associd;
        }

        vap->iv_sta_assoc++;
        ic->ic_sta_assoc++;
        /* Update bss load element in beacon */
        ieee80211_vap_bssload_update_set(vap);
        if ((ni->ni_flags & IEEE80211_NODE_HT) &&
            (ni->ni_flags & IEEE80211_NODE_40_INTOLERANT)) {
            ieee80211_change_cw(ic);
        }
        if (IEEE80211_IS_AMPDU_ENABLED(ic)) {
            ieee80211node_clear_flag(ni, IEEE80211_NODE_NOAMPDU);
        }
        else {
            ieee80211node_set_flag(ni, IEEE80211_NODE_NOAMPDU);
        }
        if (IEEE80211_NODE_USEAMPDU(ni)) {
            ic->ic_ht_sta_assoc++;
            if (ni->ni_htcap & IEEE80211_HTCAP_C_GREENFIELD)
                ic->ic_ht_gf_sta_assoc++;
        }
        if (ni->ni_chwidth == IEEE80211_CWM_WIDTH40)
            ic->ic_ht40_sta_assoc++;
        if ((IEEE80211_IS_CHAN_ANYG(vap->iv_bsschan) ||
            IEEE80211_IS_CHAN_11NG(vap->iv_bsschan)) && !IEEE80211_IS_TDLS_NODE(ni))
            ieee80211_node_join_11g(ni);
    }
#if ATH_SUPPORT_WIFIPOS
    // Time stamp to send in status response
    ni->last_rx_desc_tsf = ic->ic_get_TSF32(ic);
#endif
    ni->ni_inact_reload = ni->ni_vap->iv_inact_auth;
    ni->ni_inact = ni->ni_inact_reload;
    
    /* Multicast enhancement: If the entry with the node's address exists in 
     * the snoop table, it should be removed.
     */
    if (vap->iv_ique_ops.me_clean) {
        vap->iv_ique_ops.me_clean(ni);
    }
    /*
     * HBR / headline block removal: add the node entity to the table
     * for HBR purpose
     */
    if (vap->iv_ique_ops.hbr_nodejoin) {
        vap->iv_ique_ops.hbr_nodejoin(vap, ni);
    }
    IEEE80211_NODE_STATE_UNLOCK(ni);
    IEEE80211_ADD_NODE_TARGET(ni, ni->ni_vap, 0);
	return 0;
}