LXR linux/drivers/staging/rtl8712/mlme

   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
  35static void sitesurvey_ctrl_handler(unsigned long data)
  36{
  37        struct _adapter *adapter = (struct _adapter *)data;
  38
  39        _r8712_sitesurvey_ctrl_handler(adapter);
  40        mod_timer(&adapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer,
  41                  jiffies + msecs_to_jiffies(3000));
  42}
  43
  44static void join_timeout_handler (unsigned long data)
  45{
  46        struct _adapter *adapter = (struct _adapter *)data;
  47
  48        _r8712_join_timeout_handler(adapter);
  49}
  50
  51static void _scan_timeout_handler (unsigned long data)
  52{
  53        struct _adapter *adapter = (struct _adapter *)data;
  54
  55        r8712_scan_timeout_handler(adapter);
  56}
  57
  58static void dhcp_timeout_handler (unsigned long data)
  59{
  60        struct _adapter *adapter = (struct _adapter *)data;
  61
  62        _r8712_dhcp_timeout_handler(adapter);
  63}
  64
  65static void wdg_timeout_handler (unsigned long data)
  66{
  67        struct _adapter *adapter = (struct _adapter *)data;
  68
  69        _r8712_wdg_timeout_handler(adapter);
  70
  71        mod_timer(&adapter->mlmepriv.wdg_timer,
  72                  jiffies + msecs_to_jiffies(2000));
  73}
  74
  75void r8712_init_mlme_timer(struct _adapter *padapter)
  76{
  77        struct  mlme_priv *pmlmepriv = &padapter->mlmepriv;
  78
  79        setup_timer(&pmlmepriv->assoc_timer, join_timeout_handler,
  80                    (unsigned long)padapter);
  81        setup_timer(&pmlmepriv->sitesurveyctrl.sitesurvey_ctrl_timer,
  82                    sitesurvey_ctrl_handler,
  83                    (unsigned long)padapter);
  84        setup_timer(&pmlmepriv->scan_to_timer, _scan_timeout_handler,
  85                    (unsigned long)padapter);
  86        setup_timer(&pmlmepriv->dhcp_timer, dhcp_timeout_handler,
  87                    (unsigned long)padapter);
  88        setup_timer(&pmlmepriv->wdg_timer, wdg_timeout_handler,
  89                    (unsigned long)padapter);
  90}
  91
  92void r8712_os_indicate_connect(struct _adapter *adapter)
  93{
  94        r8712_indicate_wx_assoc_event(adapter);
  95        netif_carrier_on(adapter->pnetdev);
  96}
  97
  98static struct RT_PMKID_LIST   backupPMKIDList[NUM_PMKID_CACHE];
  99void r8712_os_indicate_disconnect(struct _adapter *adapter)
 100{
 101        u8 backupPMKIDIndex = 0;
 102        u8 backupTKIPCountermeasure = 0x00;
 103
 104        r8712_indicate_wx_disassoc_event(adapter);
 105        netif_carrier_off(adapter->pnetdev);
 106        if (adapter->securitypriv.AuthAlgrthm == 2) { /*/802.1x*/
 107                /* We have to backup the PMK information for WiFi PMK Caching
 108                 * test item. Backup the btkip_countermeasure information.
 109                 * When the countermeasure is trigger, the driver have to
 110                 * disconnect with AP for 60 seconds.
 111                 */
 112
 113                memcpy(&backupPMKIDList[0], &adapter->securitypriv.
 114                        PMKIDList[0], sizeof(struct RT_PMKID_LIST) *
 115                        NUM_PMKID_CACHE);
 116                backupPMKIDIndex = adapter->securitypriv.PMKIDIndex;
 117                backupTKIPCountermeasure = adapter->securitypriv.
 118                                           btkip_countermeasure;
 119                memset((unsigned char *)&adapter->securitypriv, 0,
 120                         sizeof(struct security_priv));
 121                setup_timer(&adapter->securitypriv.tkip_timer,
 122                            r8712_use_tkipkey_handler,
 123                            (unsigned long)adapter);
 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
 147void 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 == NULL)
 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 - 1;
 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}
 173