drivers/staging/r8188eu/os_dep/mlme_linux.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright(c) 2007 - 2011 Realtek Corporation. i*/
   3
   4 #define _MLME_OSDEP_C_
   5
   6 #include "../include/osdep_service.h"
   7 #include "../include/drv_types.h"
   8 #include "../include/mlme_osdep.h"
   9
  10 void rtw_join_timeout_handler (struct timer_list *t)
  11 {
  12         struct adapter *adapter = from_timer(adapter, t, mlmepriv.assoc_timer);
  13
  14         _rtw_join_timeout_handler(adapter);
  15 }
  16
  17 void _rtw_scan_timeout_handler (struct timer_list *t)
  18 {
  19         struct adapter *adapter = from_timer(adapter, t, mlmepriv.scan_to_timer);
  20
  21         rtw_scan_timeout_handler(adapter);
  22 }
  23
  24 static void _dynamic_check_timer_handlder(struct timer_list *t)
  25 {
  26         struct adapter *adapter = from_timer(adapter, t, mlmepriv.dynamic_chk_timer);
  27
  28         rtw_dynamic_check_timer_handlder(adapter);
  29         _set_timer(&adapter->mlmepriv.dynamic_chk_timer, 2000);
  30 }
  31
  32 void rtw_init_mlme_timer(struct adapter *padapter)
  33 {
  34         struct  mlme_priv *pmlmepriv = &padapter->mlmepriv;
  35
  36         timer_setup(&pmlmepriv->assoc_timer, rtw_join_timeout_handler, 0);
  37         timer_setup(&pmlmepriv->scan_to_timer, _rtw_scan_timeout_handler, 0);
  38         timer_setup(&pmlmepriv->dynamic_chk_timer, _dynamic_check_timer_handlder, 0);
  39 }
  40
  41 void rtw_os_indicate_connect(struct adapter *adapter)
  42 {
  43
  44         rtw_indicate_wx_assoc_event(adapter);
  45         netif_carrier_on(adapter->pnetdev);
  46         if (adapter->pid[2] != 0)
  47                 rtw_signal_process(adapter->pid[2], SIGALRM);
  48
  49 }
  50
  51 void rtw_os_indicate_scan_done(struct adapter *padapter, bool aborted)
  52 {
  53         indicate_wx_scan_complete_event(padapter);
  54 }
  55
  56 static struct rt_pmkid_list backup_pmkid[NUM_PMKID_CACHE];
  57
  58 void rtw_reset_securitypriv(struct adapter *adapter)
  59 {
  60         u8      backup_index = 0;
  61         u8      backup_counter = 0x00;
  62         u32     backup_time = 0;
  63
  64         if (adapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
  65                 /* 802.1x */
  66                 /*  We have to backup the PMK information for WiFi PMK Caching test item. */
  67                 /*  Backup the btkip_countermeasure information. */
  68                 /*  When the countermeasure is trigger, the driver have to disconnect with AP for 60 seconds. */
  69                 memcpy(&backup_pmkid[0], &adapter->securitypriv.PMKIDList[0], sizeof(struct rt_pmkid_list) * NUM_PMKID_CACHE);
  70                 backup_index = adapter->securitypriv.PMKIDIndex;
  71                 backup_counter = adapter->securitypriv.btkip_countermeasure;
  72                 backup_time = adapter->securitypriv.btkip_countermeasure_time;
  73                 memset((unsigned char *)&adapter->securitypriv, 0, sizeof(struct security_priv));
  74
  75                 /*  Restore the PMK information to securitypriv structure for the following connection. */
  76                 memcpy(&adapter->securitypriv.PMKIDList[0],
  77                             &backup_pmkid[0],
  78                             sizeof(struct rt_pmkid_list) * NUM_PMKID_CACHE);
  79                 adapter->securitypriv.PMKIDIndex = backup_index;
  80                 adapter->securitypriv.btkip_countermeasure = backup_counter;
  81                 adapter->securitypriv.btkip_countermeasure_time = backup_time;
  82                 adapter->securitypriv.ndisauthtype = Ndis802_11AuthModeOpen;
  83                 adapter->securitypriv.ndisencryptstatus = Ndis802_11WEPDisabled;
  84         } else {
  85                 /* reset values in securitypriv */
  86                 struct security_priv *psec_priv = &adapter->securitypriv;
  87
  88                 psec_priv->dot11AuthAlgrthm = dot11AuthAlgrthm_Open;  /* open system */
  89                 psec_priv->dot11PrivacyAlgrthm = _NO_PRIVACY_;
  90                 psec_priv->dot11PrivacyKeyIndex = 0;
  91                 psec_priv->dot118021XGrpPrivacy = _NO_PRIVACY_;
  92                 psec_priv->dot118021XGrpKeyid = 1;
  93                 psec_priv->ndisauthtype = Ndis802_11AuthModeOpen;
  94                 psec_priv->ndisencryptstatus = Ndis802_11WEPDisabled;
  95         }
  96 }
  97
  98 void rtw_os_indicate_disconnect(struct adapter *adapter)
  99 {
 100
 101         netif_carrier_off(adapter->pnetdev); /*  Do it first for tx broadcast pkt after disconnection issue! */
 102         rtw_indicate_wx_disassoc_event(adapter);
 103         rtw_reset_securitypriv(adapter);
 104 }
 105
 106 void rtw_report_sec_ie(struct adapter *adapter, u8 authmode, u8 *sec_ie)
 107 {
 108         uint    len;
 109         u8      *buff, *p, i;
 110         union iwreq_data wrqu;
 111
 112         buff = NULL;
 113         if (authmode == _WPA_IE_ID_) {
 114                 buff = kzalloc(IW_CUSTOM_MAX, GFP_ATOMIC);
 115                 if (!buff)
 116                         return;
 117                 p = buff;
 118                 p += sprintf(p, "ASSOCINFO(ReqIEs =");
 119                 len = sec_ie[1] + 2;
 120                 len =  (len < IW_CUSTOM_MAX) ? len : IW_CUSTOM_MAX;
 121                 for (i = 0; i < len; i++)
 122                         p += sprintf(p, "%02x", sec_ie[i]);
 123                 p += sprintf(p, ")");
 124                 memset(&wrqu, 0, sizeof(wrqu));
 125                 wrqu.data.length = p - buff;
 126                 wrqu.data.length = (wrqu.data.length < IW_CUSTOM_MAX) ?
 127                                    wrqu.data.length : IW_CUSTOM_MAX;
 128                 wireless_send_event(adapter->pnetdev, IWEVCUSTOM, &wrqu, buff);
 129                 kfree(buff);
 130         }
 131 }
 132
 133 static void _survey_timer_hdl(struct timer_list *t)
 134 {
 135         struct adapter *padapter = from_timer(padapter, t, mlmeextpriv.survey_timer);
 136
 137         survey_timer_hdl(padapter);
 138 }
 139
 140 static void _link_timer_hdl(struct timer_list *t)
 141 {
 142         struct adapter *padapter = from_timer(padapter, t, mlmeextpriv.link_timer);
 143         link_timer_hdl(padapter);
 144 }
 145
 146 static void _addba_timer_hdl(struct timer_list *t)
 147 {
 148         struct sta_info *psta = from_timer(psta, t, addba_retry_timer);
 149         addba_timer_hdl(psta);
 150 }
 151
 152 void init_addba_retry_timer(struct adapter *padapter, struct sta_info *psta)
 153 {
 154         timer_setup(&psta->addba_retry_timer, _addba_timer_hdl, 0);
 155 }
 156
 157 void init_mlme_ext_timer(struct adapter *padapter)
 158 {
 159         struct  mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
 160
 161         timer_setup(&pmlmeext->survey_timer, _survey_timer_hdl, 0);
 162         timer_setup(&pmlmeext->link_timer, _link_timer_hdl, 0);
 163 }
 164
 165 void rtw_indicate_sta_assoc_event(struct adapter *padapter, struct sta_info *psta)
 166 {
 167         union iwreq_data wrqu;
 168         struct sta_priv *pstapriv = &padapter->stapriv;
 169
 170         if (!psta)
 171                 return;
 172
 173         if (psta->aid > NUM_STA)
 174                 return;
 175
 176         if (pstapriv->sta_aid[psta->aid - 1] != psta)
 177                 return;
 178
 179         wrqu.addr.sa_family = ARPHRD_ETHER;
 180
 181         memcpy(wrqu.addr.sa_data, psta->hwaddr, ETH_ALEN);
 182
 183         wireless_send_event(padapter->pnetdev, IWEVREGISTERED, &wrqu, NULL);
 184 }
 185
 186 void rtw_indicate_sta_disassoc_event(struct adapter *padapter, struct sta_info *psta)
 187 {
 188         union iwreq_data wrqu;
 189         struct sta_priv *pstapriv = &padapter->stapriv;
 190
 191         if (!psta)
 192                 return;
 193
 194         if (psta->aid > NUM_STA)
 195                 return;
 196
 197         if (pstapriv->sta_aid[psta->aid - 1] != psta)
 198                 return;
 199
 200         wrqu.addr.sa_family = ARPHRD_ETHER;
 201
 202         memcpy(wrqu.addr.sa_data, psta->hwaddr, ETH_ALEN);
 203
 204         wireless_send_event(padapter->pnetdev, IWEVEXPIRED, &wrqu, NULL);
 205 }