void mlme_sta_connection_reset(struct ieee80211vap *vap)
{
/*
* connection has been reset.
*/
mlme_sta_swbmiss_timer_stop(vap);
}
int wlan_mlme_pause_bss(wlan_if_t vaphandle)
{
struct ieee80211vap *vap = vaphandle;
int error = 0;
IEEE80211_DPRINTF(vap, IEEE80211_MSG_MLME, "%s\n", __func__);
switch(vap->iv_opmode) {
#if UMAC_SUPPORT_IBSS
case IEEE80211_M_IBSS:
mlme_pause_adhoc_bss(vap);
break;
#endif
case IEEE80211_M_STA:
mlme_sta_swbmiss_timer_stop(vap);
break;
default:
ASSERT(0);
}
return error;
}
int wlan_mlme_deauth_request(wlan_if_t vaphandle, u_int8_t *macaddr, IEEE80211_REASON_CODE reason)
{
struct ieee80211vap *vap = vaphandle;
struct ieee80211_node *ni;
int error = 0;
IEEE80211_DPRINTF(vap, IEEE80211_MSG_MLME, "%s\n", __func__);
/*
* if a node exist with the given address already , use it.
* if not use bss node.
*/
ni = ieee80211_vap_find_node(vap, macaddr);
if (ni == NULL) {
if (IEEE80211_ADDR_EQ(macaddr, IEEE80211_GET_BCAST_ADDR(vap->iv_ic)))
ni = ieee80211_ref_node(vap->iv_bss);
else{
error = -EIO;
goto exit;
}
}
/* Send deauth frame */
error = ieee80211_send_deauth(ni, reason);
/* Node needs to be removed from table as well, do it only for AP/IBSS now */
#if ATH_SUPPORT_IBSS
if ((vap->iv_opmode == IEEE80211_M_HOSTAP || vap->iv_opmode == IEEE80211_M_IBSS) && ni != vap->iv_bss) {
#else
if (vap->iv_opmode == IEEE80211_M_HOSTAP && ni != vap->iv_bss) {
#if ATH_SUPPORT_AOW
ieee80211_aow_join_indicate(ni->ni_ic, AOW_STA_DISCONNECTED, ni);
#endif /* ATH_SUPPORT_AOW */
#endif /* ATH_SUPPORT_IBSS */
IEEE80211_NODE_LEAVE(ni);
}
/* claim node immediately */
ieee80211_free_node(ni);
if (error) {
goto exit;
}
/*
* Call MLME confirmation handler => mlme_deauth_complete
* This should reflect the tx completion status of the deauth frame,
* but since we don't have per frame completion, we'll always indicate success here.
*/
IEEE80211_DELIVER_EVENT_MLME_DEAUTH_COMPLETE(vap,macaddr, IEEE80211_STATUS_SUCCESS);
exit:
return error;
}
int wlan_mlme_disassoc_request(wlan_if_t vaphandle, u_int8_t *macaddr, IEEE80211_REASON_CODE reason)
{
struct ieee80211vap *vap = vaphandle;
struct ieee80211_node *ni;
int error = 0;
IEEE80211_DPRINTF(vap, IEEE80211_MSG_MLME, "%s\n", __func__);
/* Broadcast Addr - disassociate all stations */
if (IEEE80211_ADDR_EQ(macaddr, IEEE80211_GET_BCAST_ADDR(vap->iv_ic))) {
if (vap->iv_opmode == IEEE80211_M_STA) {
IEEE80211_DPRINTF(vap, IEEE80211_MSG_MLME,
"%s: unexpected station vap with all 0xff mac address", __func__);
ASSERT(0);
goto exit;
} else {
/* Iterate station list only when PMF is not enabled */
if (!wlan_vap_is_pmf_enabled(vap)) {
wlan_iterate_station_list(vap, sta_disassoc, NULL);
goto exit;
}
}
}
/*
* if a node exist with the given address already , use it.
* if not use bss node.
*/
ni = ieee80211_vap_find_node(vap, macaddr);
if (ni == NULL) {
if (IEEE80211_ADDR_EQ(macaddr, IEEE80211_GET_BCAST_ADDR(vap->iv_ic)))
ni = ieee80211_ref_node(vap->iv_bss);
else{
error = -EIO;
goto exit;
}
}
/* Send disassoc frame */
error = ieee80211_send_disassoc(ni, reason);
/* Node needs to be removed from table as well, do it only for AP now */
if (vap->iv_opmode == IEEE80211_M_HOSTAP && ni != vap->iv_bss) {
#if ATH_SUPPORT_AOW
ieee80211_aow_join_indicate(ni->ni_ic, AOW_STA_DISCONNECTED, ni);
#endif /* ATH_SUPPORT_AOW */
IEEE80211_NODE_LEAVE(ni);
}
/* claim node immediately */
ieee80211_free_node(ni);
if (error) {
goto exit;
}
/*
* Call MLME confirmation handler => mlme_disassoc_complete
* This should reflect the tx completion status of the disassoc frame,
* but since we don't have per frame completion, we'll always indicate success here.
*/
IEEE80211_DELIVER_EVENT_MLME_DISASSOC_COMPLETE(vap, macaddr, reason, IEEE80211_STATUS_SUCCESS);
exit:
return error;
}
int wlan_mlme_start_bss(wlan_if_t vaphandle)
{
struct ieee80211vap *vap = vaphandle;
struct ieee80211_mlme_priv *mlme_priv = vap->iv_mlme_priv;
int error = 0;
IEEE80211_DPRINTF(vap, IEEE80211_MSG_MLME, "%s\n", __func__);
switch(vap->iv_opmode) {
case IEEE80211_M_IBSS:
IEEE80211_DPRINTF(vap, IEEE80211_MSG_MLME, "%s: Create adhoc bss\n", __func__);
/* Reset state */
mlme_priv->im_connection_up = 0;
error = mlme_create_adhoc_bss(vap);
break;
case IEEE80211_M_MONITOR:
case IEEE80211_M_HOSTAP:
case IEEE80211_M_BTAMP:
/*
* start the AP . the channel/ssid should have been setup already.
*/
IEEE80211_DPRINTF(vap, IEEE80211_MSG_MLME, "%s: Create infrastructure(AP) bss\n", __func__);
error = mlme_create_infra_bss(vap);
break;
default:
ASSERT(0);
}
return error;
}
bool wlan_coext_enabled(wlan_if_t vaphandle)
{
struct ieee80211com *ic = vaphandle->iv_ic;
return (ic->ic_flags & IEEE80211_F_COEXT_DISABLE) ? FALSE : TRUE;
}
void wlan_determine_cw(wlan_if_t vaphandle, wlan_chan_t channel)
{
struct ieee80211com *ic = vaphandle->iv_ic;
int is_chan_ht40 = channel->ic_flags & (IEEE80211_CHAN_11NG_HT40PLUS |
IEEE80211_CHAN_11NG_HT40MINUS);
if (is_chan_ht40 && (channel->ic_flags & IEEE80211_CHAN_HT40INTOL)) {
ic->ic_bss_to20(ic);
}
}
static void
sta_deauth(void *arg, struct ieee80211_node *ni)
{
struct ieee80211vap *vap = ni->ni_vap;
u_int8_t macaddr[6];
IEEE80211_DPRINTF(vap, IEEE80211_MSG_MLME, "%s: deauth station %s \n",
__func__,ether_sprintf(ni->ni_macaddr));
IEEE80211_ADDR_COPY(macaddr, ni->ni_macaddr);
if (ni->ni_associd) {
/*
* if it is associated, then send disassoc.
*/
ieee80211_send_deauth(ni, IEEE80211_REASON_AUTH_LEAVE);
}
IEEE80211_NODE_LEAVE(ni);
IEEE80211_DELIVER_EVENT_MLME_DEAUTH_INDICATION(vap, macaddr, IEEE80211_REASON_AUTH_LEAVE);
}
static void
sta_disassoc(void *arg, struct ieee80211_node *ni)
{
struct ieee80211vap *vap = ni->ni_vap;
u_int8_t macaddr[6];
IEEE80211_DPRINTF(vap, IEEE80211_MSG_MLME, "%s: disassoc station %s \n",
__func__,ether_sprintf(ni->ni_macaddr));
IEEE80211_ADDR_COPY(macaddr, ni->ni_macaddr);
if (ni->ni_associd) {
/*
* if it is associated, then send disassoc.
*/
ieee80211_send_disassoc(ni, IEEE80211_REASON_ASSOC_LEAVE);
#if ATH_SUPPORT_AOW
ieee80211_aow_join_indicate(ni->ni_ic, AOW_STA_DISCONNECTED, ni);
#endif /* ATH_SUPPORT_AOW */
}
IEEE80211_NODE_LEAVE(ni);
IEEE80211_DELIVER_EVENT_MLME_DISASSOC_COMPLETE(vap, macaddr,
IEEE80211_REASON_ASSOC_LEAVE, IEEE80211_STATUS_SUCCESS);
}
int wlan_mlme_stop_bss(wlan_if_t vaphandle, int flags)
{
#define WAIT_RX_INTERVAL 10000
u_int32_t elapsed_time = 0;
struct ieee80211vap *vap = vaphandle;
struct ieee80211_mlme_priv *mlme_priv = vap->iv_mlme_priv;
int error = 0;
IEEE80211_DPRINTF(vap, IEEE80211_MSG_MLME, "%s flags = 0x%x\n", __func__, flags);
/*
* Wait for current rx path to finish. Assume only one rx thread.
*/
if (flags & WLAN_MLME_STOP_BSS_F_WAIT_RX_DONE) {
do {
if (OS_ATOMIC_CMPXCHG(&vap->iv_rx_gate, 0, 1) == 0) {
break;
}
OS_SLEEP(WAIT_RX_INTERVAL);
elapsed_time += WAIT_RX_INTERVAL;
if (elapsed_time > (100 * WAIT_RX_INTERVAL))
ieee80211_note (vap,"%s: Rx pending count stuck. Investigate!!!\n", __func__);
} while (1);
}
switch(vap->iv_opmode) {
#if UMAC_SUPPORT_IBSS
case IEEE80211_M_IBSS:
mlme_stop_adhoc_bss(vap, flags);
break;
#endif
case IEEE80211_M_HOSTAP:
case IEEE80211_M_BTAMP:
/* disassoc/deauth all stations */
IEEE80211_DPRINTF(vap, IEEE80211_MSG_MLME, "%s: dsassocing/deauth all stations \n", __func__);
if(vap->iv_send_deauth)
wlan_iterate_station_list(vap, sta_deauth, NULL);
else
wlan_iterate_station_list(vap, sta_disassoc, NULL);
break;
case IEEE80211_M_STA:
/* There should be no mlme requests pending */
ASSERT(vap->iv_mlme_priv->im_request_type == MLME_REQ_NONE);
/* Reset state variables */
mlme_priv->im_connection_up = 0;
mlme_sta_swbmiss_timer_stop(vap);
ieee80211_sta_leave(vap->iv_bss);
break;
default:
break;
}
if (flags & WLAN_MLME_STOP_BSS_F_FORCE_STOP_RESET) {
/* put vap in init state */
ieee80211_vap_stop(vap, TRUE);
} else {
/* put vap in stopping state */
if (flags & WLAN_MLME_STOP_BSS_F_STANDBY)
ieee80211_vap_standby(vap);
else
ieee80211_vap_stop(vap, FALSE);
}
if (!(flags & WLAN_MLME_STOP_BSS_F_NO_RESET))
error = ieee80211_reset_bss(vap);
/*
* Release the rx mutex.
*/
if (flags & WLAN_MLME_STOP_BSS_F_WAIT_RX_DONE) {
(void) OS_ATOMIC_CMPXCHG(&vap->iv_rx_gate, 1, 0);
}
return error;
#undef WAIT_RX_INTERVAL
}