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(struct timer_list *t)
  36 {
  37         struct _adapter *adapter =
  38                 from_timer(adapter, t,
  39                            mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer);
  40
  41         _r8712_sitesurvey_ctrl_handler(adapter);
  42         mod_timer(&adapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer,
  43                   jiffies + msecs_to_jiffies(3000));
  44 }
  45
  46 static void join_timeout_handler (struct timer_list *t)
  47 {
  48         struct _adapter *adapter =
  49                 from_timer(adapter, t, mlmepriv.assoc_timer);
  50
  51         _r8712_join_timeout_handler(adapter);
  52 }
  53
  54 static void _scan_timeout_handler (struct timer_list *t)
  55 {
  56         struct _adapter *adapter =
  57                 from_timer(adapter, t, mlmepriv.scan_to_timer);
  58
  59         r8712_scan_timeout_handler(adapter);
  60 }
  61
  62 static void dhcp_timeout_handler (struct timer_list *t)
  63 {
  64         struct _adapter *adapter =
  65                 from_timer(adapter, t, mlmepriv.dhcp_timer);
  66
  67         _r8712_dhcp_timeout_handler(adapter);
  68 }
  69
  70 static void wdg_timeout_handler (struct timer_list *t)
  71 {
  72         struct _adapter *adapter =
  73                 from_timer(adapter, t, mlmepriv.wdg_timer);
  74
  75         _r8712_wdg_timeout_handler(adapter);
  76
  77         mod_timer(&adapter->mlmepriv.wdg_timer,
  78                   jiffies + msecs_to_jiffies(2000));
  79 }
  80
  81 void r8712_init_mlme_timer(struct _adapter *padapter)
  82 {
  83         struct  mlme_priv *pmlmepriv = &padapter->mlmepriv;
  84
  85         timer_setup(&pmlmepriv->assoc_timer, join_timeout_handler, 0);
  86         timer_setup(&pmlmepriv->sitesurveyctrl.sitesurvey_ctrl_timer,
  87                     sitesurvey_ctrl_handler, 0);
  88         timer_setup(&pmlmepriv->scan_to_timer, _scan_timeout_handler, 0);
  89         timer_setup(&pmlmepriv->dhcp_timer, dhcp_timeout_handler, 0);
  90         timer_setup(&pmlmepriv->wdg_timer, wdg_timeout_handler, 0);
  91 }
  92
  93 void r8712_os_indicate_connect(struct _adapter *adapter)
  94 {
  95         r8712_indicate_wx_assoc_event(adapter);
  96         netif_carrier_on(adapter->pnetdev);
  97 }
  98
  99 static struct RT_PMKID_LIST   backupPMKIDList[NUM_PMKID_CACHE];
 100 void r8712_os_indicate_disconnect(struct _adapter *adapter)
 101 {
 102         u8 backupPMKIDIndex = 0;
 103         u8 backupTKIPCountermeasure = 0x00;
 104
 105         r8712_indicate_wx_disassoc_event(adapter);
 106         netif_carrier_off(adapter->pnetdev);
 107         if (adapter->securitypriv.AuthAlgrthm == 2) { /*/802.1x*/
 108                 /* We have to backup the PMK information for WiFi PMK Caching
 109                  * test item. Backup the btkip_countermeasure information.
 110                  * When the countermeasure is trigger, the driver have to
 111                  * disconnect with AP for 60 seconds.
 112                  */
 113
 114                 memcpy(&backupPMKIDList[0],
 115                        &adapter->securitypriv.PMKIDList[0],
 116                        sizeof(struct RT_PMKID_LIST) * NUM_PMKID_CACHE);
 117                 backupPMKIDIndex = adapter->securitypriv.PMKIDIndex;
 118                 backupTKIPCountermeasure =
 119                         adapter->securitypriv.btkip_countermeasure;
 120                 memset((unsigned char *)&adapter->securitypriv, 0,
 121                        sizeof(struct security_priv));
 122                 timer_setup(&adapter->securitypriv.tkip_timer,
 123                             r8712_use_tkipkey_handler, 0);
 124                 /* Restore the PMK information to securitypriv structure
 125                  * for the following connection.
 126                  */
 127                 memcpy(&adapter->securitypriv.PMKIDList[0],
 128                        &backupPMKIDList[0],
 129                        sizeof(struct RT_PMKID_LIST) * NUM_PMKID_CACHE);
 130                 adapter->securitypriv.PMKIDIndex = backupPMKIDIndex;
 131                 adapter->securitypriv.btkip_countermeasure =
 132                                          backupTKIPCountermeasure;
 133         } else { /*reset values in securitypriv*/
 134                 struct security_priv *psec_priv = &adapter->securitypriv;
 135
 136                 psec_priv->AuthAlgrthm = 0; /*open system*/
 137                 psec_priv->PrivacyAlgrthm = _NO_PRIVACY_;
 138                 psec_priv->PrivacyKeyIndex = 0;
 139                 psec_priv->XGrpPrivacy = _NO_PRIVACY_;
 140                 psec_priv->XGrpKeyid = 1;
 141                 psec_priv->ndisauthtype = Ndis802_11AuthModeOpen;
 142                 psec_priv->ndisencryptstatus = Ndis802_11WEPDisabled;
 143                 psec_priv->wps_phase = false;
 144         }
 145 }
 146
 147 void r8712_report_sec_ie(struct _adapter *adapter, u8 authmode, u8 *sec_ie)
 148 {
 149         uint len;
 150         u8 *buff, *p, i;
 151         union iwreq_data wrqu;
 152
 153         buff = NULL;
 154         if (authmode == _WPA_IE_ID_) {
 155                 buff = kzalloc(IW_CUSTOM_MAX, GFP_ATOMIC);
 156                 if (!buff)
 157                         return;
 158                 p = buff;
 159                 p += sprintf(p, "ASSOCINFO(ReqIEs=");
 160                 len = sec_ie[1] + 2;
 161                 len =  (len < IW_CUSTOM_MAX) ? len : IW_CUSTOM_MAX;
 162                 for (i = 0; i < len; i++)
 163                         p += sprintf(p, "%02x", sec_ie[i]);
 164                 p += sprintf(p, ")");
 165                 memset(&wrqu, 0, sizeof(wrqu));
 166                 wrqu.data.length = p - buff;
 167                 wrqu.data.length = (wrqu.data.length < IW_CUSTOM_MAX) ?
 168                                    wrqu.data.length : IW_CUSTOM_MAX;
 169                 wireless_send_event(adapter->pnetdev, IWEVCUSTOM, &wrqu, buff);
 170                 kfree(buff);
 171         }
 172 }