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
sitesurvey_ctrl_handler(void * FunctionContext)35 static 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
join_timeout_handler(void * FunctionContext)44 static void join_timeout_handler (void *FunctionContext)
45 {
46 struct _adapter *adapter = (struct _adapter *)FunctionContext;
47
48 _r8712_join_timeout_handler(adapter);
49 }
50
_scan_timeout_handler(void * FunctionContext)51 static void _scan_timeout_handler (void *FunctionContext)
52 {
53 struct _adapter *adapter = (struct _adapter *)FunctionContext;
54
55 r8712_scan_timeout_handler(adapter);
56 }
57
dhcp_timeout_handler(void * FunctionContext)58 static void dhcp_timeout_handler (void *FunctionContext)
59 {
60 struct _adapter *adapter = (struct _adapter *)FunctionContext;
61
62 _r8712_dhcp_timeout_handler(adapter);
63 }
64
wdg_timeout_handler(void * FunctionContext)65 static void wdg_timeout_handler (void *FunctionContext)
66 {
67 struct _adapter *adapter = (struct _adapter *)FunctionContext;
68
69 _r8712_wdg_timeout_handler(adapter);
70
71 _set_timer(&adapter->mlmepriv.wdg_timer, 2000);
72 }
73
r8712_init_mlme_timer(struct _adapter * padapter)74 void r8712_init_mlme_timer(struct _adapter *padapter)
75 {
76 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
77
78 _init_timer(&(pmlmepriv->assoc_timer), padapter->pnetdev,
79 join_timeout_handler, (pmlmepriv->nic_hdl));
80 _init_timer(&(pmlmepriv->sitesurveyctrl.sitesurvey_ctrl_timer),
81 padapter->pnetdev, sitesurvey_ctrl_handler,
82 (u8 *)(pmlmepriv->nic_hdl));
83 _init_timer(&(pmlmepriv->scan_to_timer), padapter->pnetdev,
84 _scan_timeout_handler, (pmlmepriv->nic_hdl));
85 _init_timer(&(pmlmepriv->dhcp_timer), padapter->pnetdev,
86 dhcp_timeout_handler, (u8 *)(pmlmepriv->nic_hdl));
87 _init_timer(&(pmlmepriv->wdg_timer), padapter->pnetdev,
88 wdg_timeout_handler, (u8 *)(pmlmepriv->nic_hdl));
89 }
90
r8712_os_indicate_connect(struct _adapter * adapter)91 void r8712_os_indicate_connect(struct _adapter *adapter)
92 {
93 r8712_indicate_wx_assoc_event(adapter);
94 netif_carrier_on(adapter->pnetdev);
95 }
96
97 static struct RT_PMKID_LIST backupPMKIDList[NUM_PMKID_CACHE];
r8712_os_indicate_disconnect(struct _adapter * adapter)98 void r8712_os_indicate_disconnect(struct _adapter *adapter)
99 {
100 u8 backupPMKIDIndex = 0;
101 u8 backupTKIPCountermeasure = 0x00;
102
103 r8712_indicate_wx_disassoc_event(adapter);
104 netif_carrier_off(adapter->pnetdev);
105 if (adapter->securitypriv.AuthAlgrthm == 2) { /*/802.1x*/
106 /* We have to backup the PMK information for WiFi PMK Caching
107 * test item. Backup the btkip_countermeasure information.
108 * When the countermeasure is trigger, the driver have to
109 * disconnect with AP for 60 seconds.
110 */
111
112 memcpy(&backupPMKIDList[0], &adapter->securitypriv.
113 PMKIDList[0], sizeof(struct RT_PMKID_LIST) *
114 NUM_PMKID_CACHE);
115 backupPMKIDIndex = adapter->securitypriv.PMKIDIndex;
116 backupTKIPCountermeasure = adapter->securitypriv.
117 btkip_countermeasure;
118 memset((unsigned char *)&adapter->securitypriv, 0,
119 sizeof(struct security_priv));
120 _init_timer(&(adapter->securitypriv.tkip_timer),
121 adapter->pnetdev, r8712_use_tkipkey_handler,
122 adapter);
123 /* Restore the PMK information to securitypriv structure
124 * for the following connection. */
125 memcpy(&adapter->securitypriv.PMKIDList[0],
126 &backupPMKIDList[0],
127 sizeof(struct RT_PMKID_LIST) * NUM_PMKID_CACHE);
128 adapter->securitypriv.PMKIDIndex = backupPMKIDIndex;
129 adapter->securitypriv.btkip_countermeasure =
130 backupTKIPCountermeasure;
131 } else { /*reset values in securitypriv*/
132 struct security_priv *psec_priv = &adapter->securitypriv;
133
134 psec_priv->AuthAlgrthm = 0; /*open system*/
135 psec_priv->PrivacyAlgrthm = _NO_PRIVACY_;
136 psec_priv->PrivacyKeyIndex = 0;
137 psec_priv->XGrpPrivacy = _NO_PRIVACY_;
138 psec_priv->XGrpKeyid = 1;
139 psec_priv->ndisauthtype = Ndis802_11AuthModeOpen;
140 psec_priv->ndisencryptstatus = Ndis802_11WEPDisabled;
141 psec_priv->wps_phase = false;
142 }
143 }
144
r8712_report_sec_ie(struct _adapter * adapter,u8 authmode,u8 * sec_ie)145 void r8712_report_sec_ie(struct _adapter *adapter, u8 authmode, u8 *sec_ie)
146 {
147 uint len;
148 u8 *buff, *p, i;
149 union iwreq_data wrqu;
150
151 buff = NULL;
152 if (authmode == _WPA_IE_ID_) {
153 buff = kzalloc(IW_CUSTOM_MAX, GFP_ATOMIC);
154 if (buff == NULL)
155 return;
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 - 1;
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