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(struct timer_list * t)35 static void sitesurvey_ctrl_handler(struct timer_list *t)
36 {
37 struct _adapter *adapter =
38 from_timer(adapter, t,
39 mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer);
40
41 _r8712_sitesurvey_ctrl_handler(adapter);
42 mod_timer(&adapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer,
43 jiffies + msecs_to_jiffies(3000));
44 }
45
join_timeout_handler(struct timer_list * t)46 static void join_timeout_handler (struct timer_list *t)
47 {
48 struct _adapter *adapter =
49 from_timer(adapter, t, mlmepriv.assoc_timer);
50
51 _r8712_join_timeout_handler(adapter);
52 }
53
_scan_timeout_handler(struct timer_list * t)54 static void _scan_timeout_handler (struct timer_list *t)
55 {
56 struct _adapter *adapter =
57 from_timer(adapter, t, mlmepriv.scan_to_timer);
58
59 r8712_scan_timeout_handler(adapter);
60 }
61
dhcp_timeout_handler(struct timer_list * t)62 static void dhcp_timeout_handler (struct timer_list *t)
63 {
64 struct _adapter *adapter =
65 from_timer(adapter, t, mlmepriv.dhcp_timer);
66
67 _r8712_dhcp_timeout_handler(adapter);
68 }
69
wdg_timeout_handler(struct timer_list * t)70 static void wdg_timeout_handler (struct timer_list *t)
71 {
72 struct _adapter *adapter =
73 from_timer(adapter, t, mlmepriv.wdg_timer);
74
75 _r8712_wdg_timeout_handler(adapter);
76
77 mod_timer(&adapter->mlmepriv.wdg_timer,
78 jiffies + msecs_to_jiffies(2000));
79 }
80
r8712_init_mlme_timer(struct _adapter * padapter)81 void r8712_init_mlme_timer(struct _adapter *padapter)
82 {
83 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
84
85 timer_setup(&pmlmepriv->assoc_timer, join_timeout_handler, 0);
86 timer_setup(&pmlmepriv->sitesurveyctrl.sitesurvey_ctrl_timer,
87 sitesurvey_ctrl_handler, 0);
88 timer_setup(&pmlmepriv->scan_to_timer, _scan_timeout_handler, 0);
89 timer_setup(&pmlmepriv->dhcp_timer, dhcp_timeout_handler, 0);
90 timer_setup(&pmlmepriv->wdg_timer, wdg_timeout_handler, 0);
91 }
92
r8712_os_indicate_connect(struct _adapter * adapter)93 void r8712_os_indicate_connect(struct _adapter *adapter)
94 {
95 r8712_indicate_wx_assoc_event(adapter);
96 netif_carrier_on(adapter->pnetdev);
97 }
98
99 static struct RT_PMKID_LIST backupPMKIDList[NUM_PMKID_CACHE];
r8712_os_indicate_disconnect(struct _adapter * adapter)100 void r8712_os_indicate_disconnect(struct _adapter *adapter)
101 {
102 u8 backupPMKIDIndex = 0;
103 u8 backupTKIPCountermeasure = 0x00;
104
105 r8712_indicate_wx_disassoc_event(adapter);
106 netif_carrier_off(adapter->pnetdev);
107 if (adapter->securitypriv.AuthAlgrthm == 2) { /*/802.1x*/
108 /* We have to backup the PMK information for WiFi PMK Caching
109 * test item. Backup the btkip_countermeasure information.
110 * When the countermeasure is trigger, the driver have to
111 * disconnect with AP for 60 seconds.
112 */
113
114 memcpy(&backupPMKIDList[0],
115 &adapter->securitypriv.PMKIDList[0],
116 sizeof(struct RT_PMKID_LIST) * NUM_PMKID_CACHE);
117 backupPMKIDIndex = adapter->securitypriv.PMKIDIndex;
118 backupTKIPCountermeasure =
119 adapter->securitypriv.btkip_countermeasure;
120 memset((unsigned char *)&adapter->securitypriv, 0,
121 sizeof(struct security_priv));
122 timer_setup(&adapter->securitypriv.tkip_timer,
123 r8712_use_tkipkey_handler, 0);
124 /* Restore the PMK information to securitypriv structure
125 * for the following connection.
126 */
127 memcpy(&adapter->securitypriv.PMKIDList[0],
128 &backupPMKIDList[0],
129 sizeof(struct RT_PMKID_LIST) * NUM_PMKID_CACHE);
130 adapter->securitypriv.PMKIDIndex = backupPMKIDIndex;
131 adapter->securitypriv.btkip_countermeasure =
132 backupTKIPCountermeasure;
133 } else { /*reset values in securitypriv*/
134 struct security_priv *psec_priv = &adapter->securitypriv;
135
136 psec_priv->AuthAlgrthm = 0; /*open system*/
137 psec_priv->PrivacyAlgrthm = _NO_PRIVACY_;
138 psec_priv->PrivacyKeyIndex = 0;
139 psec_priv->XGrpPrivacy = _NO_PRIVACY_;
140 psec_priv->XGrpKeyid = 1;
141 psec_priv->ndisauthtype = Ndis802_11AuthModeOpen;
142 psec_priv->ndisencryptstatus = Ndis802_11WEPDisabled;
143 psec_priv->wps_phase = false;
144 }
145 }
146
r8712_report_sec_ie(struct _adapter * adapter,u8 authmode,u8 * sec_ie)147 void r8712_report_sec_ie(struct _adapter *adapter, u8 authmode, u8 *sec_ie)
148 {
149 uint len;
150 u8 *buff, *p, i;
151 union iwreq_data wrqu;
152
153 buff = NULL;
154 if (authmode == _WPA_IE_ID_) {
155 buff = kzalloc(IW_CUSTOM_MAX, GFP_ATOMIC);
156 if (!buff)
157 return;
158 p = buff;
159 p += sprintf(p, "ASSOCINFO(ReqIEs=");
160 len = sec_ie[1] + 2;
161 len = (len < IW_CUSTOM_MAX) ? len : IW_CUSTOM_MAX - 1;
162 for (i = 0; i < len; i++)
163 p += sprintf(p, "%02x", sec_ie[i]);
164 p += sprintf(p, ")");
165 memset(&wrqu, 0, sizeof(wrqu));
166 wrqu.data.length = p - buff;
167 wrqu.data.length = (wrqu.data.length < IW_CUSTOM_MAX) ?
168 wrqu.data.length : IW_CUSTOM_MAX;
169 wireless_send_event(adapter->pnetdev, IWEVCUSTOM, &wrqu, buff);
170 kfree(buff);
171 }
172 }
173
