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_timeout_handler(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 *padapter) 70 { 71 struct mlme_priv *pmlmepriv = &padapter->mlmepriv; 72 73 timer_setup(&pmlmepriv->assoc_timer, join_timeout_handler, 0); 74 timer_setup(&pmlmepriv->sitesurveyctrl.sitesurvey_ctrl_timer, 75 sitesurvey_ctrl_handler, 0); 76 timer_setup(&pmlmepriv->scan_to_timer, _scan_timeout_handler, 0); 77 timer_setup(&pmlmepriv->dhcp_timer, dhcp_timeout_handler, 0); 78 timer_setup(&pmlmepriv->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 *psec_priv = &adapter->securitypriv; 123 124 psec_priv->AuthAlgrthm = 0; /*open system*/ 125 psec_priv->PrivacyAlgrthm = _NO_PRIVACY_; 126 psec_priv->PrivacyKeyIndex = 0; 127 psec_priv->XGrpPrivacy = _NO_PRIVACY_; 128 psec_priv->XGrpKeyid = 1; 129 psec_priv->ndisauthtype = Ndis802_11AuthModeOpen; 130 psec_priv->ndisencryptstatus = Ndis802_11WEPDisabled; 131 psec_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 } 161