1 /******************************************************************************
2 * rtl871x_ioctl_set.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 _RTL871X_IOCTL_SET_C_
30
31 #include "osdep_service.h"
32 #include "drv_types.h"
33 #include "rtl871x_ioctl_set.h"
34 #include "usb_osintf.h"
35 #include "usb_ops.h"
36
37 #define IS_MAC_ADDRESS_BROADCAST(addr) \
38 ( \
39 ((addr[0] == 0xff) && (addr[1] == 0xff) && \
40 (addr[2] == 0xff) && (addr[3] == 0xff) && \
41 (addr[4] == 0xff) && (addr[5] == 0xff)) ? true : false \
42 )
43
validate_ssid(struct ndis_802_11_ssid * ssid)44 static u8 validate_ssid(struct ndis_802_11_ssid *ssid)
45 {
46 u8 i;
47
48 if (ssid->SsidLength > 32)
49 return false;
50 for (i = 0; i < ssid->SsidLength; i++) {
51 /* wifi, printable ascii code must be supported */
52 if (!((ssid->Ssid[i] >= 0x20) && (ssid->Ssid[i] <= 0x7e)))
53 return false;
54 }
55 return true;
56 }
57
do_join(struct _adapter * padapter)58 static u8 do_join(struct _adapter *padapter)
59 {
60 struct list_head *plist, *phead;
61 u8 *pibss = NULL;
62 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
63 struct __queue *queue = &(pmlmepriv->scanned_queue);
64
65 phead = &queue->queue;
66 plist = phead->next;
67 pmlmepriv->cur_network.join_res = -2;
68 pmlmepriv->fw_state |= _FW_UNDER_LINKING;
69 pmlmepriv->pscanned = plist;
70 pmlmepriv->to_join = true;
71
72 /* adhoc mode will start with an empty queue, but skip checking */
73 if (!check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) &&
74 list_empty(&queue->queue)) {
75 if (pmlmepriv->fw_state & _FW_UNDER_LINKING)
76 pmlmepriv->fw_state ^= _FW_UNDER_LINKING;
77 /* when set_ssid/set_bssid for do_join(), but scanning queue
78 * is empty we try to issue sitesurvey firstly
79 */
80 if (!pmlmepriv->sitesurveyctrl.traffic_busy)
81 r8712_sitesurvey_cmd(padapter, &pmlmepriv->assoc_ssid);
82 return true;
83 } else {
84 int ret;
85
86 ret = r8712_select_and_join_from_scan(pmlmepriv);
87 if (ret == _SUCCESS)
88 mod_timer(&pmlmepriv->assoc_timer,
89 jiffies + msecs_to_jiffies(MAX_JOIN_TIMEOUT));
90 else {
91 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
92 /* submit r8712_createbss_cmd to change to an
93 * ADHOC_MASTER pmlmepriv->lock has been
94 * acquired by caller...
95 */
96 struct wlan_bssid_ex *pdev_network =
97 &(padapter->registrypriv.dev_network);
98 pmlmepriv->fw_state = WIFI_ADHOC_MASTER_STATE;
99 pibss = padapter->registrypriv.dev_network.
100 MacAddress;
101 memcpy(&pdev_network->Ssid,
102 &pmlmepriv->assoc_ssid,
103 sizeof(struct ndis_802_11_ssid));
104 r8712_update_registrypriv_dev_network(padapter);
105 r8712_generate_random_ibss(pibss);
106 if (r8712_createbss_cmd(padapter) != _SUCCESS)
107 return false;
108 pmlmepriv->to_join = false;
109 } else {
110 /* can't associate ; reset under-linking */
111 if (pmlmepriv->fw_state & _FW_UNDER_LINKING)
112 pmlmepriv->fw_state ^=
113 _FW_UNDER_LINKING;
114 /* when set_ssid/set_bssid for do_join(), but
115 * there are no desired bss in scanning queue
116 * we try to issue sitesurvey first
117 */
118 if (!pmlmepriv->sitesurveyctrl.traffic_busy)
119 r8712_sitesurvey_cmd(padapter,
120 &pmlmepriv->assoc_ssid);
121 }
122 }
123 }
124 return true;
125 }
126
r8712_set_802_11_bssid(struct _adapter * padapter,u8 * bssid)127 u8 r8712_set_802_11_bssid(struct _adapter *padapter, u8 *bssid)
128 {
129 unsigned long irqL;
130 u8 status = true;
131 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
132
133 if (is_zero_ether_addr(bssid) || is_broadcast_ether_addr(bssid)) {
134 status = false;
135 return status;
136 }
137 spin_lock_irqsave(&pmlmepriv->lock, irqL);
138 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY |
139 _FW_UNDER_LINKING) == true) {
140 status = check_fwstate(pmlmepriv, _FW_UNDER_LINKING);
141 goto _Abort_Set_BSSID;
142 }
143 if (check_fwstate(pmlmepriv,
144 _FW_LINKED|WIFI_ADHOC_MASTER_STATE) == true) {
145 if (!memcmp(&pmlmepriv->cur_network.network.MacAddress, bssid,
146 ETH_ALEN)) {
147 if (!check_fwstate(pmlmepriv, WIFI_STATION_STATE))
148 goto _Abort_Set_BSSID; /* driver is in
149 * WIFI_ADHOC_MASTER_STATE */
150 } else {
151 r8712_disassoc_cmd(padapter);
152 if (check_fwstate(pmlmepriv, _FW_LINKED) == true)
153 r8712_ind_disconnect(padapter);
154 r8712_free_assoc_resources(padapter);
155 if ((check_fwstate(pmlmepriv,
156 WIFI_ADHOC_MASTER_STATE))) {
157 _clr_fwstate_(pmlmepriv,
158 WIFI_ADHOC_MASTER_STATE);
159 set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
160 }
161 }
162 }
163 memcpy(&pmlmepriv->assoc_bssid, bssid, ETH_ALEN);
164 pmlmepriv->assoc_by_bssid = true;
165 status = do_join(padapter);
166 goto done;
167 _Abort_Set_BSSID:
168 done:
169 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
170 return status;
171 }
172
r8712_set_802_11_ssid(struct _adapter * padapter,struct ndis_802_11_ssid * ssid)173 void r8712_set_802_11_ssid(struct _adapter *padapter,
174 struct ndis_802_11_ssid *ssid)
175 {
176 unsigned long irqL;
177 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
178 struct wlan_network *pnetwork = &pmlmepriv->cur_network;
179
180 if (!padapter->hw_init_completed)
181 return;
182 spin_lock_irqsave(&pmlmepriv->lock, irqL);
183 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY|_FW_UNDER_LINKING)) {
184 check_fwstate(pmlmepriv, _FW_UNDER_LINKING);
185 goto _Abort_Set_SSID;
186 }
187 if (check_fwstate(pmlmepriv, _FW_LINKED|WIFI_ADHOC_MASTER_STATE)) {
188 if ((pmlmepriv->assoc_ssid.SsidLength == ssid->SsidLength) &&
189 (!memcmp(&pmlmepriv->assoc_ssid.Ssid, ssid->Ssid,
190 ssid->SsidLength))) {
191 if (!check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
192 if (!r8712_is_same_ibss(padapter,
193 pnetwork)) {
194 /* if in WIFI_ADHOC_MASTER_STATE or
195 * WIFI_ADHOC_STATE, create bss or
196 * rejoin again
197 */
198 r8712_disassoc_cmd(padapter);
199 if (check_fwstate(pmlmepriv,
200 _FW_LINKED) == true)
201 r8712_ind_disconnect(padapter);
202 r8712_free_assoc_resources(padapter);
203 if (check_fwstate(pmlmepriv,
204 WIFI_ADHOC_MASTER_STATE)) {
205 _clr_fwstate_(pmlmepriv,
206 WIFI_ADHOC_MASTER_STATE);
207 set_fwstate(pmlmepriv,
208 WIFI_ADHOC_STATE);
209 }
210 } else
211 goto _Abort_Set_SSID; /* driver is in
212 * WIFI_ADHOC_MASTER_STATE */
213 }
214 } else {
215 r8712_disassoc_cmd(padapter);
216 if (check_fwstate(pmlmepriv, _FW_LINKED) == true)
217 r8712_ind_disconnect(padapter);
218 r8712_free_assoc_resources(padapter);
219 if (check_fwstate(pmlmepriv,
220 WIFI_ADHOC_MASTER_STATE) == true) {
221 _clr_fwstate_(pmlmepriv,
222 WIFI_ADHOC_MASTER_STATE);
223 set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
224 }
225 }
226 }
227 if (padapter->securitypriv.btkip_countermeasure == true)
228 goto _Abort_Set_SSID;
229 if (!validate_ssid(ssid))
230 goto _Abort_Set_SSID;
231 memcpy(&pmlmepriv->assoc_ssid, ssid, sizeof(struct ndis_802_11_ssid));
232 pmlmepriv->assoc_by_bssid = false;
233 do_join(padapter);
234 goto done;
235 _Abort_Set_SSID:
236 done:
237 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
238 }
239
r8712_set_802_11_infrastructure_mode(struct _adapter * padapter,enum NDIS_802_11_NETWORK_INFRASTRUCTURE networktype)240 void r8712_set_802_11_infrastructure_mode(struct _adapter *padapter,
241 enum NDIS_802_11_NETWORK_INFRASTRUCTURE networktype)
242 {
243 unsigned long irqL;
244 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
245 struct wlan_network *cur_network = &pmlmepriv->cur_network;
246 enum NDIS_802_11_NETWORK_INFRASTRUCTURE *pold_state =
247 &(cur_network->network.InfrastructureMode);
248
249 if (*pold_state != networktype) {
250 spin_lock_irqsave(&pmlmepriv->lock, irqL);
251 if ((check_fwstate(pmlmepriv, _FW_LINKED) == true) ||
252 (*pold_state == Ndis802_11IBSS))
253 r8712_disassoc_cmd(padapter);
254 if (check_fwstate(pmlmepriv,
255 _FW_LINKED|WIFI_ADHOC_MASTER_STATE) == true)
256 r8712_free_assoc_resources(padapter);
257 if ((check_fwstate(pmlmepriv, _FW_LINKED) == true) ||
258 (*pold_state == Ndis802_11Infrastructure) ||
259 (*pold_state == Ndis802_11IBSS)) {
260 /* will clr Linked_state before this function,
261 * we must have checked whether issue dis-assoc_cmd or
262 * not */
263 r8712_ind_disconnect(padapter);
264 }
265 *pold_state = networktype;
266 /* clear WIFI_STATION_STATE; WIFI_AP_STATE; WIFI_ADHOC_STATE;
267 * WIFI_ADHOC_MASTER_STATE */
268 _clr_fwstate_(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE |
269 WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE);
270 switch (networktype) {
271 case Ndis802_11IBSS:
272 set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
273 break;
274 case Ndis802_11Infrastructure:
275 set_fwstate(pmlmepriv, WIFI_STATION_STATE);
276 break;
277 case Ndis802_11APMode:
278 set_fwstate(pmlmepriv, WIFI_AP_STATE);
279 break;
280 case Ndis802_11AutoUnknown:
281 case Ndis802_11InfrastructureMax:
282 break;
283 }
284 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
285 }
286 }
287
r8712_set_802_11_disassociate(struct _adapter * padapter)288 u8 r8712_set_802_11_disassociate(struct _adapter *padapter)
289 {
290 unsigned long irqL;
291 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
292
293 spin_lock_irqsave(&pmlmepriv->lock, irqL);
294 if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
295 r8712_disassoc_cmd(padapter);
296 r8712_ind_disconnect(padapter);
297 r8712_free_assoc_resources(padapter);
298 }
299 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
300 return true;
301 }
302
r8712_set_802_11_bssid_list_scan(struct _adapter * padapter)303 u8 r8712_set_802_11_bssid_list_scan(struct _adapter *padapter)
304 {
305 struct mlme_priv *pmlmepriv = NULL;
306 unsigned long irqL;
307 u8 ret = true;
308
309 if (!padapter)
310 return false;
311 pmlmepriv = &padapter->mlmepriv;
312 if (!padapter->hw_init_completed)
313 return false;
314 spin_lock_irqsave(&pmlmepriv->lock, irqL);
315 if ((check_fwstate(pmlmepriv, _FW_UNDER_SURVEY|_FW_UNDER_LINKING)) ||
316 (pmlmepriv->sitesurveyctrl.traffic_busy == true)) {
317 /* Scan or linking is in progress, do nothing. */
318 ret = (u8)check_fwstate(pmlmepriv, _FW_UNDER_SURVEY);
319 } else {
320 r8712_free_network_queue(padapter);
321 ret = r8712_sitesurvey_cmd(padapter, NULL);
322 }
323 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
324 return ret;
325 }
326
r8712_set_802_11_authentication_mode(struct _adapter * padapter,enum NDIS_802_11_AUTHENTICATION_MODE authmode)327 u8 r8712_set_802_11_authentication_mode(struct _adapter *padapter,
328 enum NDIS_802_11_AUTHENTICATION_MODE authmode)
329 {
330 struct security_priv *psecuritypriv = &padapter->securitypriv;
331 u8 ret;
332
333 psecuritypriv->ndisauthtype = authmode;
334 if (psecuritypriv->ndisauthtype > 3)
335 psecuritypriv->AuthAlgrthm = 2; /* 802.1x */
336 if (r8712_set_auth(padapter, psecuritypriv) == _SUCCESS)
337 ret = true;
338 else
339 ret = false;
340 return ret;
341 }
342
r8712_set_802_11_add_wep(struct _adapter * padapter,struct NDIS_802_11_WEP * wep)343 u8 r8712_set_802_11_add_wep(struct _adapter *padapter,
344 struct NDIS_802_11_WEP *wep)
345 {
346 sint keyid;
347 struct security_priv *psecuritypriv = &padapter->securitypriv;
348
349 keyid = wep->KeyIndex & 0x3fffffff;
350 if (keyid >= WEP_KEYS)
351 return false;
352 switch (wep->KeyLength) {
353 case 5:
354 psecuritypriv->PrivacyAlgrthm = _WEP40_;
355 break;
356 case 13:
357 psecuritypriv->PrivacyAlgrthm = _WEP104_;
358 break;
359 default:
360 psecuritypriv->PrivacyAlgrthm = _NO_PRIVACY_;
361 break;
362 }
363 memcpy(psecuritypriv->DefKey[keyid].skey, &wep->KeyMaterial,
364 wep->KeyLength);
365 psecuritypriv->DefKeylen[keyid] = wep->KeyLength;
366 psecuritypriv->PrivacyKeyIndex = keyid;
367 if (r8712_set_key(padapter, psecuritypriv, keyid) == _FAIL)
368 return false;
369 return _SUCCESS;
370 }
371