/*
* Handle bookkeeping for station deauthentication/disassociation
* when operating as an ap.
*/
void
ieee80211_node_leave(struct ieee80211com *ic, struct ieee80211_node *ni)
{
if (ic->ic_opmode != IEEE80211_M_HOSTAP)
panic("not in ap mode, mode %u", ic->ic_opmode);
/*
* If node wasn't previously associated all
* we need to do is reclaim the reference.
*/
if (ni->ni_associd == 0)
return;
IEEE80211_AID_CLR(ni->ni_associd, ic->ic_aid_bitmap);
ni->ni_associd = 0;
if (ic->ic_curmode == IEEE80211_MODE_11G)
ieee80211_node_leave_11g(ic, ni);
ieee80211_node_newstate(ni, IEEE80211_STA_COLLECT);
#if NBRIDGE > 0
/*
* If the parent interface belongs to a bridge, delete
* any dynamically learned address for this node.
*/
if (ic->ic_if.if_bridge != NULL)
bridge_update(&ic->ic_if,
(struct ether_addr *)ni->ni_macaddr, 1);
#endif
}
/*
* Handle bookkeeping for station deauthentication/disassociation
* when operating as an ap.
*/
void
ieee80211_node_leave(struct ieee80211com *ic, struct ieee80211_node *ni)
{
if (ic->ic_opmode != IEEE80211_M_HOSTAP)
panic("not in ap mode, mode %u", ic->ic_opmode);
/*
* If node wasn't previously associated all we need to do is
* reclaim the reference.
*/
if (ni->ni_associd == 0) {
ieee80211_node_newstate(ni, IEEE80211_STA_COLLECT);
return;
}
if (ni->ni_pwrsave == IEEE80211_PS_DOZE) {
ic->ic_pssta--;
ni->ni_pwrsave = IEEE80211_PS_AWAKE;
}
if (!IF_IS_EMPTY(&ni->ni_savedq)) {
IF_PURGE(&ni->ni_savedq);
if (ic->ic_set_tim != NULL)
(*ic->ic_set_tim)(ic, ni->ni_associd, 0);
}
if (ic->ic_flags & IEEE80211_F_RSNON)
ieee80211_node_leave_rsn(ic, ni);
if (ic->ic_curmode == IEEE80211_MODE_11G)
ieee80211_node_leave_11g(ic, ni);
#ifndef IEEE80211_NO_HT
if (ni->ni_flags & IEEE80211_NODE_HT)
ieee80211_node_leave_ht(ic, ni);
#endif
if (ic->ic_node_leave != NULL)
(*ic->ic_node_leave)(ic, ni);
IEEE80211_AID_CLR(ni->ni_associd, ic->ic_aid_bitmap);
ni->ni_associd = 0;
ieee80211_node_newstate(ni, IEEE80211_STA_COLLECT);
#if NBRIDGE > 0
/*
* If the parent interface is a bridgeport, delete
* any dynamically learned address for this node.
*/
if (ic->ic_if.if_bridgeport != NULL)
bridge_update(&ic->ic_if,
(struct ether_addr *)ni->ni_macaddr, 1);
#endif
}
bool _ieee80211_node_leave(struct ieee80211_node *ni)
#endif
{
struct ieee80211com *ic = ni->ni_ic;
struct ieee80211vap *vap = ni->ni_vap;
bool retval = false;
#ifdef IEEE80211_DEBUG_REFCNT
TRACENODE(ni, func, line);
#endif
IEEE80211_NOTE(vap, IEEE80211_MSG_ASSOC | IEEE80211_MSG_DEBUG, ni,
"station with aid %d leaves (refcnt %u) \n",
IEEE80211_NODE_AID(ni), ieee80211_node_refcnt(ni));
#ifdef ATH_SWRETRY
(ni->ni_ic)->ic_reset_pause_tid(ni->ni_ic, ni);
#endif
if (!IEEE80211_IS_TDLS_NODE(ni))
KASSERT(vap->iv_opmode == IEEE80211_M_HOSTAP
|| vap->iv_opmode == IEEE80211_M_WDS || vap->iv_opmode == IEEE80211_M_BTAMP,
("unexpected operating mode %u", vap->iv_opmode));
/* 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: delete the node entity from the table
* for HBR purpose
*/
if (vap->iv_ique_ops.hbr_nodeleave) {
vap->iv_ique_ops.hbr_nodeleave(vap, ni);
}
/*
* If node wasn't previously associated all
* we need to do is reclaim the reference.
*/
/* XXX ibss mode bypasses 11g and notification */
IEEE80211_NODE_STATE_LOCK(ni);
if (ni->ni_associd) {
vap->iv_sta_assoc--;
ic->ic_sta_assoc--;
/* Update bss load element in beacon */
ieee80211_vap_bssload_update_set(vap);
if (IEEE80211_NODE_USEAMPDU(ni)) {
ic->ic_ht_sta_assoc--;
if (ni->ni_htcap & IEEE80211_HTCAP_C_GREENFIELD) {
ASSERT(ic->ic_ht_gf_sta_assoc > 0);
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_leave_11g(ni);
IEEE80211_NODE_STATE_UNLOCK(ni);
IEEE80211_DELETE_NODE_TARGET(ni, ic, vap, 0);
} else {
IEEE80211_NODE_STATE_UNLOCK(ni);
}
ieee80211_admctl_node_leave(vap, ni);
/*
* Cleanup station state. In particular clear various state that
* might otherwise be reused if the node is reused before the
* reference count goes to zero (and memory is reclaimed).
*
* If ni is not in node table, it has been reclaimed in another thread.
*/
retval = ieee80211_sta_leave(ni);
if ((ni->ni_flags & IEEE80211_NODE_HT) &&
(ni->ni_flags & IEEE80211_NODE_40_INTOLERANT)) {
ieee80211_change_cw(ic);
}
return retval;
}
