drivers/staging/rtl8712/mlme_linux.c

   1 /******************************************************************************
   2  * mlme_linux.c
   3  *
   4  * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
   5  * Linux device driver for RTL8192SU
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of version 2 of the GNU General Public License as
   9  * published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14  * more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along with
  17  * this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  19  *
  20  * Modifications for inclusion into the Linux staging tree are
  21  * Copyright(c) 2010 Larry Finger. All rights reserved.
  22  *
  23  * Contact information:
  24  * WLAN FAE <wlanfae@realtek.com>.
  25  * Larry Finger <Larry.Finger@lwfinger.net>
  26  *
  27  ******************************************************************************/
  28
  29 #define _MLME_OSDEP_C_
  30
  31 #include "osdep_service.h"
  32 #include "drv_types.h"
  33 #include "mlme_osdep.h"
  34
  35 static void sitesurvey_ctrl_handler(void *FunctionContext)
  36 {
  37         struct _adapter *adapter = (struct _adapter *)FunctionContext;
  38
  39         _r8712_sitesurvey_ctrl_handler(adapter);
  40         _set_timer(&adapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer,
  41                    3000);
  42 }
  43
  44 static void join_timeout_handler (void *FunctionContext)
  45 {
  46         struct _adapter *adapter = (struct _adapter *)FunctionContext;
  47
  48         _r8712_join_timeout_handler(adapter);
  49 }
  50
  51 static void _scan_timeout_handler (void *FunctionContext)
  52 {
  53         struct _adapter *adapter = (struct _adapter *)FunctionContext;
  54
  55         r8712_scan_timeout_handler(adapter);
  56 }
  57
  58 static void dhcp_timeout_handler (void *FunctionContext)
  59 {
  60         struct _adapter *adapter = (struct _adapter *)FunctionContext;
  61
  62         _r8712_dhcp_timeout_handler(adapter);
  63 }
  64
  65 static void wdg_timeout_handler (void *FunctionContext)
  66 {
  67         struct _adapter *adapter = (struct _adapter *)FunctionContext;
  68
  69         _r8712_wdg_timeout_handler(adapter);
  70
  71         _set_timer(&adapter->mlmepriv.wdg_timer, 2000);
  72 }
  73
  74 void r8712_init_mlme_timer(struct _adapter *padapter)
  75 {
  76         struct  mlme_priv *pmlmepriv = &padapter->mlmepriv;
  77
  78         _init_timer(&(pmlmepriv->assoc_timer), padapter->pnetdev,
  79                     join_timeout_handler, (pmlmepriv->nic_hdl));
  80         _init_timer(&(pmlmepriv->sitesurveyctrl.sitesurvey_ctrl_timer),
  81                     padapter->pnetdev, sitesurvey_ctrl_handler,
  82                     (u8 *)(pmlmepriv->nic_hdl));
  83         _init_timer(&(pmlmepriv->scan_to_timer), padapter->pnetdev,
  84                     _scan_timeout_handler, (pmlmepriv->nic_hdl));
  85         _init_timer(&(pmlmepriv->dhcp_timer), padapter->pnetdev,
  86                     dhcp_timeout_handler, (u8 *)(pmlmepriv->nic_hdl));
  87         _init_timer(&(pmlmepriv->wdg_timer), padapter->pnetdev,
  88                     wdg_timeout_handler, (u8 *)(pmlmepriv->nic_hdl));
  89 }
  90
  91 void r8712_os_indicate_connect(struct _adapter *adapter)
  92 {
  93         r8712_indicate_wx_assoc_event(adapter);
  94         netif_carrier_on(adapter->pnetdev);
  95 }
  96
  97 static struct RT_PMKID_LIST   backupPMKIDList[NUM_PMKID_CACHE];
  98 void r8712_os_indicate_disconnect(struct _adapter *adapter)
  99 {
 100         u8 backupPMKIDIndex = 0;
 101         u8 backupTKIPCountermeasure = 0x00;
 102
 103         r8712_indicate_wx_disassoc_event(adapter);
 104         netif_carrier_off(adapter->pnetdev);
 105         if (adapter->securitypriv.AuthAlgrthm == 2) { /*/802.1x*/
 106                 /* We have to backup the PMK information for WiFi PMK Caching
 107                  * test item. Backup the btkip_countermeasure information.
 108                  * When the countermeasure is trigger, the driver have to
 109                  * disconnect with AP for 60 seconds.
 110                  */
 111
 112                 memcpy(&backupPMKIDList[0], &adapter->securitypriv.
 113                         PMKIDList[0], sizeof(struct RT_PMKID_LIST) *
 114                         NUM_PMKID_CACHE);
 115                 backupPMKIDIndex = adapter->securitypriv.PMKIDIndex;
 116                 backupTKIPCountermeasure = adapter->securitypriv.
 117                                            btkip_countermeasure;
 118                 memset((unsigned char *)&adapter->securitypriv, 0,
 119                          sizeof(struct security_priv));
 120                 _init_timer(&(adapter->securitypriv.tkip_timer),
 121                             adapter->pnetdev, r8712_use_tkipkey_handler,
 122                             adapter);
 123                 /* Restore the PMK information to securitypriv structure
 124                  * for the following connection. */
 125                 memcpy(&adapter->securitypriv.PMKIDList[0],
 126                         &backupPMKIDList[0],
 127                         sizeof(struct RT_PMKID_LIST) * NUM_PMKID_CACHE);
 128                 adapter->securitypriv.PMKIDIndex = backupPMKIDIndex;
 129                 adapter->securitypriv.btkip_countermeasure =
 130                                          backupTKIPCountermeasure;
 131         } else { /*reset values in securitypriv*/
 132                 struct security_priv *psec_priv = &adapter->securitypriv;
 133
 134                 psec_priv->AuthAlgrthm = 0; /*open system*/
 135                 psec_priv->PrivacyAlgrthm = _NO_PRIVACY_;
 136                 psec_priv->PrivacyKeyIndex = 0;
 137                 psec_priv->XGrpPrivacy = _NO_PRIVACY_;
 138                 psec_priv->XGrpKeyid = 1;
 139                 psec_priv->ndisauthtype = Ndis802_11AuthModeOpen;
 140                 psec_priv->ndisencryptstatus = Ndis802_11WEPDisabled;
 141                 psec_priv->wps_phase = false;
 142         }
 143 }
 144
 145 void r8712_report_sec_ie(struct _adapter *adapter, u8 authmode, u8 *sec_ie)
 146 {
 147         uint len;
 148         u8 *buff, *p, i;
 149         union iwreq_data wrqu;
 150
 151         buff = NULL;
 152         if (authmode == _WPA_IE_ID_) {
 153                 buff = kzalloc(IW_CUSTOM_MAX, GFP_ATOMIC);
 154                 if (buff == NULL)
 155                         return;
 156                 p = buff;
 157                 p += sprintf(p, "ASSOCINFO(ReqIEs=");
 158                 len = sec_ie[1] + 2;
 159                 len =  (len < IW_CUSTOM_MAX) ? len : IW_CUSTOM_MAX - 1;
 160                 for (i = 0; i < len; i++)
 161                         p += sprintf(p, "%02x", sec_ie[i]);
 162                 p += sprintf(p, ")");
 163                 memset(&wrqu, 0, sizeof(wrqu));
 164                 wrqu.data.length = p-buff;
 165                 wrqu.data.length = (wrqu.data.length < IW_CUSTOM_MAX) ?
 166                                    wrqu.data.length : IW_CUSTOM_MAX;
 167                 wireless_send_event(adapter->pnetdev, IWEVCUSTOM, &wrqu, buff);
 168                 kfree(buff);
 169         }
 170 }