drivers/staging/rtl8712/mlme_linux.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /******************************************************************************
   3  * mlme_linux.c
   4  *
   5  * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
   6  * Linux device driver for RTL8192SU
   7  *
   8  * Modifications for inclusion into the Linux staging tree are
   9  * Copyright(c) 2010 Larry Finger. All rights reserved.
  10  *
  11  * Contact information:
  12  * WLAN FAE <wlanfae@realtek.com>.
  13  * Larry Finger <Larry.Finger@lwfinger.net>
  14  *
  15  ******************************************************************************/
  16
  17 #define _MLME_OSDEP_C_
  18
  19 #include "osdep_service.h"
  20 #include "drv_types.h"
  21 #include "mlme_osdep.h"
  22
  23 static void sitesurvey_ctrl_handler(struct timer_list *t)
  24 {
  25         struct _adapter *adapter =
  26                 from_timer(adapter, t,
  27                            mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer);
  28
  29         _r8712_sitesurvey_ctrl_handler(adapter);
  30         mod_timer(&adapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer,
  31                   jiffies + msecs_to_jiffies(3000));
  32 }
  33
  34 static void join_timeout_handler (struct timer_list *t)
  35 {
  36         struct _adapter *adapter =
  37                 from_timer(adapter, t, mlmepriv.assoc_timer);
  38
  39         _r8712_join_timeout_handler(adapter);
  40 }
  41
  42 static void _scan_timeout_handler (struct timer_list *t)
  43 {
  44         struct _adapter *adapter =
  45                 from_timer(adapter, t, mlmepriv.scan_to_timer);
  46
  47         r8712_scan_timeout_handler(adapter);
  48 }
  49
  50 static void dhcp_timeout_handler (struct timer_list *t)
  51 {
  52         struct _adapter *adapter =
  53                 from_timer(adapter, t, mlmepriv.dhcp_timer);
  54
  55         _r8712_dhcp_timeout_handler(adapter);
  56 }
  57
  58 static void wdg_timeout_handler (struct timer_list *t)
  59 {
  60         struct _adapter *adapter =
  61                 from_timer(adapter, t, mlmepriv.wdg_timer);
  62
  63         r8712_wdg_wk_cmd(adapter);
  64
  65         mod_timer(&adapter->mlmepriv.wdg_timer,
  66                   jiffies + msecs_to_jiffies(2000));
  67 }
  68
  69 void r8712_init_mlme_timer(struct _adapter *adapter)
  70 {
  71         struct  mlme_priv *mlmepriv = &adapter->mlmepriv;
  72
  73         timer_setup(&mlmepriv->assoc_timer, join_timeout_handler, 0);
  74         timer_setup(&mlmepriv->sitesurveyctrl.sitesurvey_ctrl_timer,
  75                     sitesurvey_ctrl_handler, 0);
  76         timer_setup(&mlmepriv->scan_to_timer, _scan_timeout_handler, 0);
  77         timer_setup(&mlmepriv->dhcp_timer, dhcp_timeout_handler, 0);
  78         timer_setup(&mlmepriv->wdg_timer, wdg_timeout_handler, 0);
  79 }
  80
  81 void r8712_os_indicate_connect(struct _adapter *adapter)
  82 {
  83         r8712_indicate_wx_assoc_event(adapter);
  84         netif_carrier_on(adapter->pnetdev);
  85 }
  86
  87 static struct RT_PMKID_LIST   backupPMKIDList[NUM_PMKID_CACHE];
  88 void r8712_os_indicate_disconnect(struct _adapter *adapter)
  89 {
  90         u8 backupPMKIDIndex = 0;
  91         u8 backupTKIPCountermeasure = 0x00;
  92
  93         r8712_indicate_wx_disassoc_event(adapter);
  94         netif_carrier_off(adapter->pnetdev);
  95         if (adapter->securitypriv.AuthAlgrthm == 2) { /*/802.1x*/
  96                 /* We have to backup the PMK information for WiFi PMK Caching
  97                  * test item. Backup the btkip_countermeasure information.
  98                  * When the countermeasure is trigger, the driver have to
  99                  * disconnect with AP for 60 seconds.
 100                  */
 101
 102                 memcpy(&backupPMKIDList[0],
 103                        &adapter->securitypriv.PMKIDList[0],
 104                        sizeof(struct RT_PMKID_LIST) * NUM_PMKID_CACHE);
 105                 backupPMKIDIndex = adapter->securitypriv.PMKIDIndex;
 106                 backupTKIPCountermeasure =
 107                         adapter->securitypriv.btkip_countermeasure;
 108                 memset((unsigned char *)&adapter->securitypriv, 0,
 109                        sizeof(struct security_priv));
 110                 timer_setup(&adapter->securitypriv.tkip_timer,
 111                             r8712_use_tkipkey_handler, 0);
 112                 /* Restore the PMK information to securitypriv structure
 113                  * for the following connection.
 114                  */
 115                 memcpy(&adapter->securitypriv.PMKIDList[0],
 116                        &backupPMKIDList[0],
 117                        sizeof(struct RT_PMKID_LIST) * NUM_PMKID_CACHE);
 118                 adapter->securitypriv.PMKIDIndex = backupPMKIDIndex;
 119                 adapter->securitypriv.btkip_countermeasure =
 120                                          backupTKIPCountermeasure;
 121         } else { /*reset values in securitypriv*/
 122                 struct security_priv *sec_priv = &adapter->securitypriv;
 123
 124                 sec_priv->AuthAlgrthm = 0; /*open system*/
 125                 sec_priv->PrivacyAlgrthm = _NO_PRIVACY_;
 126                 sec_priv->PrivacyKeyIndex = 0;
 127                 sec_priv->XGrpPrivacy = _NO_PRIVACY_;
 128                 sec_priv->XGrpKeyid = 1;
 129                 sec_priv->ndisauthtype = Ndis802_11AuthModeOpen;
 130                 sec_priv->ndisencryptstatus = Ndis802_11WEPDisabled;
 131                 sec_priv->wps_phase = false;
 132         }
 133 }
 134
 135 void r8712_report_sec_ie(struct _adapter *adapter, u8 authmode, u8 *sec_ie)
 136 {
 137         uint len;
 138         u8 *buff, *p, i;
 139         union iwreq_data wrqu;
 140
 141         buff = NULL;
 142         if (authmode == _WPA_IE_ID_) {
 143                 buff = kzalloc(IW_CUSTOM_MAX, GFP_ATOMIC);
 144                 if (!buff)
 145                         return;
 146                 p = buff;
 147                 p += sprintf(p, "ASSOCINFO(ReqIEs=");
 148                 len = sec_ie[1] + 2;
 149                 len =  (len < IW_CUSTOM_MAX) ? len : IW_CUSTOM_MAX;
 150                 for (i = 0; i < len; i++)
 151                         p += sprintf(p, "%02x", sec_ie[i]);
 152                 p += sprintf(p, ")");
 153                 memset(&wrqu, 0, sizeof(wrqu));
 154                 wrqu.data.length = p - buff;
 155                 wrqu.data.length = (wrqu.data.length < IW_CUSTOM_MAX) ?
 156                                    wrqu.data.length : IW_CUSTOM_MAX;
 157                 wireless_send_event(adapter->pnetdev, IWEVCUSTOM, &wrqu, buff);
 158                 kfree(buff);
 159         }
 160 }