int proc_get_rf_info(struct seq_file *m, void *v)
{
struct net_device *dev = m->private;
_adapter *padapter = (_adapter *)rtw_netdev_priv(dev);
struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
DBG_871X_SEL_NL(m, "cur_ch=%d, cur_bw=%d, cur_ch_offet=%d\n",
pmlmeext->cur_channel, pmlmeext->cur_bwmode, pmlmeext->cur_ch_offset);
DBG_871X_SEL_NL(m, "oper_ch=%d, oper_bw=%d, oper_ch_offet=%d\n",
rtw_get_oper_ch(padapter), rtw_get_oper_bw(padapter), rtw_get_oper_choffset(padapter));
return 0;
}
int proc_get_rf_info(char *page, char **start,
off_t offset, int count,
int *eof, void *data)
{
struct net_device *dev = data;
_adapter *padapter = (_adapter *)rtw_netdev_priv(dev);
struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
int len = 0;
len += snprintf(page + len, count - len, "cur_ch=%d, cur_bw=%d, cur_ch_offet=%d\n"
"oper_ch=%d, oper_bw=%d, oper_ch_offet=%d\n",
pmlmeext->cur_channel, pmlmeext->cur_bwmode, pmlmeext->cur_ch_offset,
rtw_get_oper_ch(padapter), rtw_get_oper_bw(padapter), rtw_get_oper_choffset(padapter));
*eof = 1;
return len;
}
void expire_timeout_chk(struct adapter *padapter)
{
struct list_head *phead, *plist;
u8 updated = 0;
struct sta_info *psta = NULL;
struct sta_priv *pstapriv = &padapter->stapriv;
u8 chk_alive_num = 0;
char chk_alive_list[NUM_STA];
int i;
spin_lock_bh(&pstapriv->auth_list_lock);
phead = &pstapriv->auth_list;
plist = phead->next;
/* check auth_queue */
while (phead != plist) {
psta = container_of(plist, struct sta_info, auth_list);
plist = plist->next;
if (psta->expire_to > 0) {
psta->expire_to--;
if (psta->expire_to == 0) {
list_del_init(&psta->auth_list);
pstapriv->auth_list_cnt--;
DBG_88E("auth expire %6ph\n",
psta->hwaddr);
spin_unlock_bh(&pstapriv->auth_list_lock);
spin_lock_bh(&pstapriv->sta_hash_lock);
rtw_free_stainfo(padapter, psta);
spin_unlock_bh(&pstapriv->sta_hash_lock);
spin_lock_bh(&pstapriv->auth_list_lock);
}
}
}
spin_unlock_bh(&pstapriv->auth_list_lock);
psta = NULL;
spin_lock_bh(&pstapriv->asoc_list_lock);
phead = &pstapriv->asoc_list;
plist = phead->next;
/* check asoc_queue */
while (phead != plist) {
psta = container_of(plist, struct sta_info, asoc_list);
plist = plist->next;
if (chk_sta_is_alive(psta) || !psta->expire_to) {
psta->expire_to = pstapriv->expire_to;
psta->keep_alive_trycnt = 0;
psta->under_exist_checking = 0;
} else {
psta->expire_to--;
}
if (psta->expire_to <= 0) {
struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
if (padapter->registrypriv.wifi_spec == 1) {
psta->expire_to = pstapriv->expire_to;
continue;
}
if (psta->state & WIFI_SLEEP_STATE) {
if (!(psta->state & WIFI_STA_ALIVE_CHK_STATE)) {
/* to check if alive by another methods
* if station is at ps mode.
*/
psta->expire_to = pstapriv->expire_to;
psta->state |= WIFI_STA_ALIVE_CHK_STATE;
/* to update bcn with tim_bitmap
* for this station
*/
pstapriv->tim_bitmap |= BIT(psta->aid);
update_beacon(padapter, _TIM_IE_, NULL,
false);
if (!pmlmeext->active_keep_alive_check)
continue;
}
}
if (pmlmeext->active_keep_alive_check) {
int stainfo_offset;
stainfo_offset =
rtw_stainfo_offset(pstapriv, psta);
if (stainfo_offset_valid(stainfo_offset))
chk_alive_list[chk_alive_num++] =
stainfo_offset;
continue;
}
list_del_init(&psta->asoc_list);
pstapriv->asoc_list_cnt--;
DBG_88E("asoc expire %pM, state = 0x%x\n", (psta->hwaddr), psta->state);
updated = ap_free_sta(padapter, psta, true, WLAN_REASON_DEAUTH_LEAVING);
} else {
/* TODO: Aging mechanism to digest frames in sleep_q to avoid running out of xmitframe */
if (psta->sleepq_len > (NR_XMITFRAME / pstapriv->asoc_list_cnt) &&
padapter->xmitpriv.free_xmitframe_cnt < (NR_XMITFRAME / pstapriv->asoc_list_cnt / 2)) {
DBG_88E("%s sta:%pM, sleepq_len:%u, free_xmitframe_cnt:%u, asoc_list_cnt:%u, clear sleep_q\n", __func__,
(psta->hwaddr), psta->sleepq_len,
padapter->xmitpriv.free_xmitframe_cnt,
pstapriv->asoc_list_cnt);
wakeup_sta_to_xmit(padapter, psta);
}
}
}
spin_unlock_bh(&pstapriv->asoc_list_lock);
if (chk_alive_num) {
u8 backup_oper_channel = 0;
struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
/* switch to correct channel of current network before issue keep-alive frames */
if (rtw_get_oper_ch(padapter) != pmlmeext->cur_channel) {
backup_oper_channel = rtw_get_oper_ch(padapter);
SelectChannel(padapter, pmlmeext->cur_channel);
}
/* issue null data to check sta alive*/
for (i = 0; i < chk_alive_num; i++) {
int ret = _FAIL;
psta = rtw_get_stainfo_by_offset(pstapriv, chk_alive_list[i]);
if (psta->state & WIFI_SLEEP_STATE)
ret = issue_nulldata(padapter, psta->hwaddr, 0, 1, 50);
else
ret = issue_nulldata(padapter, psta->hwaddr, 0, 3, 50);
psta->keep_alive_trycnt++;
if (ret == _SUCCESS) {
DBG_88E("asoc check, sta(%pM) is alive\n", (psta->hwaddr));
psta->expire_to = pstapriv->expire_to;
psta->keep_alive_trycnt = 0;
continue;
} else if (psta->keep_alive_trycnt <= 3) {
DBG_88E("ack check for asoc expire, keep_alive_trycnt =%d\n", psta->keep_alive_trycnt);
psta->expire_to = 1;
continue;
}
psta->keep_alive_trycnt = 0;
DBG_88E("asoc expire %pM, state = 0x%x\n", (psta->hwaddr), psta->state);
spin_lock_bh(&pstapriv->asoc_list_lock);
list_del_init(&psta->asoc_list);
pstapriv->asoc_list_cnt--;
updated = ap_free_sta(padapter, psta, true, WLAN_REASON_DEAUTH_LEAVING);
spin_unlock_bh(&pstapriv->asoc_list_lock);
}
if (backup_oper_channel > 0) /* back to the original operation channel */
SelectChannel(padapter, backup_oper_channel);
}
associated_clients_update(padapter, updated);
}
