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