/* Reset Connection */
int wlan_mlme_connection_reset(wlan_if_t vaphandle)
{
struct ieee80211vap *vap = vaphandle;
struct ieee80211_mlme_priv *mlme_priv = vap->iv_mlme_priv;
#if (UMAC_SUPPORT_TDLS == 1) && (ATH_TDLS_AUTO_CONNECT == 1)
struct ieee80211com *ic = vap->iv_ic;
ic->ic_tdls_clean(vap);
#endif
IEEE80211_DPRINTF(vap, IEEE80211_MSG_MLME, "%s\n", __func__);
/* 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;
/* Association failed, put underlying H/W back to init state. */
ieee80211_vap_stop(vap, FALSE);
/* Leave the BSS */
ieee80211_sta_leave(vap->iv_bss);
switch(vap->iv_opmode) {
case IEEE80211_M_STA:
mlme_sta_connection_reset(vap);
default:
break;
}
return 0;
}
int
wlan_vap_delete(wlan_if_t vaphandle)
{
struct ieee80211vap *vap = vaphandle;
struct ieee80211com *ic = vap->iv_ic;
IEEE80211_DPRINTF_IC(ic, IEEE80211_VERBOSE_LOUD,IEEE80211_MSG_DEBUG,
"%s : enter. vaphandle=0x%x\n",
__func__,
vaphandle
);
ieee80211_vap_pause_vdetach(ic,vap);
IEEE80211_COMM_LOCK(ic);
#ifdef MAGPIE_HIF_GMAC
if (ic->ic_chanchange_cnt)
ic->ic_chanchange_cnt -= ic->ic_chanchange_tbtt;
#endif
if (ieee80211_vap_deleted_is_clear(vap)) /* if not deleted then it is on the list */
{
TAILQ_REMOVE(&ic->ic_vaps, vap, iv_next);
if (TAILQ_EMPTY(&ic->ic_vaps)) /* reset to supported mode */
ic->ic_opmode = IEEE80211_M_STA;
ieee80211_vap_deleted_set(vap); /* mark it as deleted */
IEEE80211_COMM_UNLOCK(ic);
/*
* In case iv_bss was not stopped or is in scanning.
* TBD: BSS should have been stopped now. We can save the time for stop bss again.
*/
wlan_mlme_stop_bss(vap,
WLAN_MLME_STOP_BSS_F_SEND_DEAUTH |
WLAN_MLME_STOP_BSS_F_CLEAR_ASSOC_STATE |
WLAN_MLME_STOP_BSS_F_WAIT_RX_DONE |
WLAN_MLME_STOP_BSS_F_NO_RESET);
ieee80211_sta_leave(vap->iv_bss);
ieee80211_node_vdetach(vap);
} else {
IEEE80211_COMM_UNLOCK(ic);
}
IEEE80211_DPRINTF_IC(ic, IEEE80211_VERBOSE_LOUD,IEEE80211_MSG_DEBUG,
"%s : exit. vaphandle=0x%x\n",
__func__,
vaphandle
);
return 0;
}
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
}
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;
}
/*
* Join an infrastructure network
*/
int
ieee80211_sta_join(struct ieee80211vap *vap, ieee80211_scan_entry_t scan_entry)
{
struct ieee80211com *ic = vap->iv_ic;
struct ieee80211_node_table *nt = &ic->ic_sta;
struct ieee80211_node *ni = NULL;
const u_int8_t *macaddr = ieee80211_scan_entry_macaddr(scan_entry);
int error = 0;
ASSERT(vap->iv_opmode == IEEE80211_M_STA);
ni = ieee80211_find_node(nt, macaddr);
if (ni) {
/*
* reusing old node has a potential for several bugs . The old node may have some state info from previous association.
* get rid of the old bss node and create a new bss node.
*/
ieee80211_sta_leave(ni);
ieee80211_free_node(ni);
}
/*
* Create a BSS node.
*/
ni = ieee80211_alloc_node(nt, vap, macaddr);
if (ni == NULL)
return -ENOMEM;
/* set the maximum number frmaes to be queued when the vap is in fake sleep */
ieee80211_node_saveq_set_param(ni,IEEE80211_NODE_SAVEQ_DATA_Q_LEN,IEE80211_STA_MAX_NODE_SAVEQ_LEN);
/* To become a bss node, a node need an extra reference count, which alloc node already gives */
#ifdef IEEE80211_DEBUG_REFCNT
ieee80211_note(ni->ni_vap,"%s ,line %u: increase node %p <%s> refcnt to %d\n",
__func__, __LINE__, ni, ether_sprintf(ni->ni_macaddr),
ieee80211_node_refcnt(ni));
#endif
/* setup the bss node for association */
error = ieee80211_setup_node(ni, scan_entry);
if (error != 0) {
ieee80211_free_node(ni);
return error;
}
/* copy the beacon timestamp */
OS_MEMCPY(ni->ni_tstamp.data,
ieee80211_scan_entry_tsf(scan_entry),
sizeof(ni->ni_tstamp));
/*
* Join the BSS represented by this new node.
* This function will free up the old BSS node
* and use this one as the new BSS node.
*/
ieee80211_sta_join_bss(ni);
IEEE80211_ADD_NODE_TARGET(ni, ni->ni_vap, 0);
/* Save our home channel */
vap->iv_bsschan = ni->ni_chan;
vap->iv_cur_mode = ieee80211_chan2mode(ni->ni_chan);
/* Update the DotH falg */
ieee80211_update_spectrumrequirement(vap);
/*
* The OS will control our security keys.
* If clear, keys will be cleared.
* If static WEP, keys will be plumbed before JoinInfra.
* If WPA/WPA2, ciphers will be setup, but no keys will be plumbed until
* after they are negotiated.
* XXX We should ASSERT that all of the foregoing is true.
*/
return 0;
}
/* End: gengzj added end */
int
wlan_vap_delete(wlan_if_t vaphandle)
{
struct ieee80211vap *vap = vaphandle;
struct ieee80211com *ic = vap->iv_ic;
IEEE80211_DPRINTF_IC(ic, IEEE80211_VERBOSE_LOUD,IEEE80211_MSG_DEBUG,
"%s : enter. vaphandle=0x%x\n",
__func__,
vaphandle
);
ieee80211_vap_pause_vdetach(ic,vap);
IEEE80211_COMM_LOCK(ic);
/* Begin: gengzj added for wifipos 2013-11-26 */
/*AUTELAN-Added-begin:Added by pengdecai for wifi scan locate function*/
#if 0
if((NULL != vap->iv_scan_locate) && \
(NULL != vap->iv_scan_locate->sl_sock))
{
// printk("driver:fun %s vap->iv_scan_locate->sl_sock= %p\n",__func__, vap->iv_scan_locate->sl_sock);
vap->iv_locate = 0;
if(NULL != vap->iv_scan_locate->sl_sock) {
OS_SOCKET_RELEASE(vap->iv_scan_locate->sl_sock);
}
//free scan locate struct
OS_FREE(vap->iv_scan_locate);
vap->iv_scan_locate = NULL;
}
#endif
/*AUTELAN-Added-end:Added by pengdecai for wifi scan locate function*/
/* End: gengzj added end */
#ifdef MAGPIE_HIF_GMAC
if (ic->ic_chanchange_cnt)
ic->ic_chanchange_cnt -= ic->ic_chanchange_tbtt;
#endif
if (ieee80211_vap_deleted_is_clear(vap)) /* if not deleted then it is on the list */
{
TAILQ_REMOVE(&ic->ic_vaps, vap, iv_next);
if (TAILQ_EMPTY(&ic->ic_vaps)) /* reset to supported mode */
ic->ic_opmode = IEEE80211_M_STA;
ieee80211_vap_deleted_set(vap); /* mark it as deleted */
IEEE80211_COMM_UNLOCK(ic);
/*
* In case iv_bss was not stopped or is in scanning.
* TBD: BSS should have been stopped now. We can save the time for stop bss again.
*/
wlan_mlme_stop_bss(vap,
WLAN_MLME_STOP_BSS_F_SEND_DEAUTH |
WLAN_MLME_STOP_BSS_F_CLEAR_ASSOC_STATE |
WLAN_MLME_STOP_BSS_F_WAIT_RX_DONE |
WLAN_MLME_STOP_BSS_F_NO_RESET);
/*zhaoyang1 transplant from 717*/
/*suzhaoyu add for customer online-traffic limit*/
OS_FREE_TIMER(&vap->online_traffic_timer);
/*suzhaoyu addend*/
/*zhaoyang1 transplant end*/
ieee80211_sta_leave(vap->iv_bss);
ieee80211_node_vdetach(vap);
} else {
IEEE80211_COMM_UNLOCK(ic);
}
IEEE80211_DPRINTF_IC(ic, IEEE80211_VERBOSE_LOUD,IEEE80211_MSG_DEBUG,
"%s : exit. vaphandle=0x%x\n",
__func__,
vaphandle
);
return 0;
}