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
}
/*
* 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;
}