text: /******************************************************************************
   * mlme_linux.c
   *
   * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
   * Linux device driver for RTL8192SU
   *
   * This program is free software; you can redistribute it and/or modify it
   * under the terms of version 2 of the GNU General Public License as
   * published by the Free Software Foundation.
   *
   * This program is distributed in the hope that it will be useful, but WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
   * more details.
   *
   * You should have received a copy of the GNU General Public License along with
   * this program; if not, write to the Free Software Foundation, Inc.,
   * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
   *
   * Modifications for inclusion into the Linux staging tree are
   * Copyright(c) 2010 Larry Finger. All rights reserved.
   *
   * Contact information:
   * WLAN FAE <wlanfae@realtek.com>.
   * Larry Finger <Larry.Finger@lwfinger.net>
   *
   ******************************************************************************/
  
  #define _MLME_OSDEP_C_
  
  #include "osdep_service.h"
  #include "drv_types.h"
  #include "mlme_osdep.h"
  
  static void sitesurvey_ctrl_handler(void *FunctionContext)
  {
  	struct _adapter *adapter = (struct _adapter *)FunctionContext;
  
  	_r8712_sitesurvey_ctrl_handler(adapter);
  	_set_timer(&adapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer,
  		   3000);
  }
  
  static void join_timeout_handler (void *FunctionContext)
  {
  	struct _adapter *adapter = (struct _adapter *)FunctionContext;
  
  	_r8712_join_timeout_handler(adapter);
  }
  
  static void _scan_timeout_handler (void *FunctionContext)
  {
  	struct _adapter *adapter = (struct _adapter *)FunctionContext;
  
  	r8712_scan_timeout_handler(adapter);
  }
  
  static void dhcp_timeout_handler (void *FunctionContext)
  {
  	struct _adapter *adapter = (struct _adapter *)FunctionContext;
  
  	_r8712_dhcp_timeout_handler(adapter);
  }
  
  static void wdg_timeout_handler (void *FunctionContext)
  {
  	struct _adapter *adapter = (struct _adapter *)FunctionContext;
  
  	_r8712_wdg_timeout_handler(adapter);
  
  	_set_timer(&adapter->mlmepriv.wdg_timer, 2000);
  }
  
  void r8712_init_mlme_timer(struct _adapter *padapter)
  {
  	struct	mlme_priv *pmlmepriv = &padapter->mlmepriv;
  
  	_init_timer(&(pmlmepriv->assoc_timer), padapter->pnetdev,
  		    join_timeout_handler, (pmlmepriv->nic_hdl));
  	_init_timer(&(pmlmepriv->sitesurveyctrl.sitesurvey_ctrl_timer),
  		    padapter->pnetdev, sitesurvey_ctrl_handler,
  		    (u8 *)(pmlmepriv->nic_hdl));
  	_init_timer(&(pmlmepriv->scan_to_timer), padapter->pnetdev,
  		    _scan_timeout_handler, (pmlmepriv->nic_hdl));
  	_init_timer(&(pmlmepriv->dhcp_timer), padapter->pnetdev,
  		    dhcp_timeout_handler, (u8 *)(pmlmepriv->nic_hdl));
  	_init_timer(&(pmlmepriv->wdg_timer), padapter->pnetdev,
  		    wdg_timeout_handler, (u8 *)(pmlmepriv->nic_hdl));
  }
  
  void r8712_os_indicate_connect(struct _adapter *adapter)
  {
  	r8712_indicate_wx_assoc_event(adapter);
  	netif_carrier_on(adapter->pnetdev);
  }
  
  static struct RT_PMKID_LIST   backupPMKIDList[NUM_PMKID_CACHE];
  void r8712_os_indicate_disconnect(struct _adapter *adapter)
  {
  	u8 backupPMKIDIndex = 0;
  	u8 backupTKIPCountermeasure = 0x00;
  
  	r8712_indicate_wx_disassoc_event(adapter);
  	netif_carrier_off(adapter->pnetdev);
  	if (adapter->securitypriv.AuthAlgrthm == 2) { /*/802.1x*/
  		/* We have to backup the PMK information for WiFi PMK Caching
  		 * test item. Backup the btkip_countermeasure information.
  		 * When the countermeasure is trigger, the driver have to
  		 * disconnect with AP for 60 seconds.
  		 */
  
  		memcpy(&backupPMKIDList[0], &adapter->securitypriv.
  			PMKIDList[0], sizeof(struct RT_PMKID_LIST) *
  			NUM_PMKID_CACHE);
  		backupPMKIDIndex = adapter->securitypriv.PMKIDIndex;
  		backupTKIPCountermeasure = adapter->securitypriv.
  					   btkip_countermeasure;
  		memset((unsigned char *)&adapter->securitypriv, 0,
  			 sizeof(struct security_priv));
  		_init_timer(&(adapter->securitypriv.tkip_timer),
  			    adapter->pnetdev, r8712_use_tkipkey_handler,
  			    adapter);
  		/* Restore the PMK information to securitypriv structure
  		 * for the following connection. */
  		memcpy(&adapter->securitypriv.PMKIDList[0],
  			&backupPMKIDList[0],
  			sizeof(struct RT_PMKID_LIST) * NUM_PMKID_CACHE);
  		adapter->securitypriv.PMKIDIndex = backupPMKIDIndex;
  		adapter->securitypriv.btkip_countermeasure =
  					 backupTKIPCountermeasure;
  	} else { /*reset values in securitypriv*/
  		struct security_priv *psec_priv = &adapter->securitypriv;
  
  		psec_priv->AuthAlgrthm = 0; /*open system*/
  		psec_priv->PrivacyAlgrthm = _NO_PRIVACY_;
  		psec_priv->PrivacyKeyIndex = 0;
  		psec_priv->XGrpPrivacy = _NO_PRIVACY_;
  		psec_priv->XGrpKeyid = 1;
  		psec_priv->ndisauthtype = Ndis802_11AuthModeOpen;
  		psec_priv->ndisencryptstatus = Ndis802_11WEPDisabled;
  		psec_priv->wps_phase = false;
  	}
  }
  
  void r8712_report_sec_ie(struct _adapter *adapter, u8 authmode, u8 *sec_ie)
  {
  	uint len;
  	u8 *buff, *p, i;
  	union iwreq_data wrqu;
  
  	buff = NULL;
  	if (authmode == _WPA_IE_ID_) {
  		buff = kzalloc(IW_CUSTOM_MAX, GFP_ATOMIC);
  		if (buff == NULL)
  			return;
  		p = buff;
  		p += sprintf(p, "ASSOCINFO(ReqIEs=");
  		len = sec_ie[1] + 2;
  		len =  (len < IW_CUSTOM_MAX) ? len : IW_CUSTOM_MAX - 1;
  		for (i = 0; i < len; i++)
  			p += sprintf(p, "%02x", sec_ie[i]);
  		p += sprintf(p, ")");
  		memset(&wrqu, 0, sizeof(wrqu));
  		wrqu.data.length = p-buff;
  		wrqu.data.length = (wrqu.data.length < IW_CUSTOM_MAX) ?
  				   wrqu.data.length : IW_CUSTOM_MAX;
  		wireless_send_event(adapter->pnetdev, IWEVCUSTOM, &wrqu, buff);
  		kfree(buff);
  	}
  }
  