1 /******************************************************************************
2 * rtl871x_mlme.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_MLME_C_
30
31 #include <linux/etherdevice.h>
32
33 #include "osdep_service.h"
34 #include "drv_types.h"
35 #include "recv_osdep.h"
36 #include "xmit_osdep.h"
37 #include "mlme_osdep.h"
38 #include "sta_info.h"
39 #include "wifi.h"
40 #include "wlan_bssdef.h"
41
42 static void update_ht_cap(struct _adapter *padapter, u8 *pie, uint ie_len);
43
_init_mlme_priv(struct _adapter * padapter)44 static sint _init_mlme_priv(struct _adapter *padapter)
45 {
46 sint i;
47 u8 *pbuf;
48 struct wlan_network *pnetwork;
49 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
50
51 memset((u8 *)pmlmepriv, 0, sizeof(struct mlme_priv));
52 pmlmepriv->nic_hdl = (u8 *)padapter;
53 pmlmepriv->pscanned = NULL;
54 pmlmepriv->fw_state = 0;
55 pmlmepriv->cur_network.network.InfrastructureMode =
56 Ndis802_11AutoUnknown;
57 /* Maybe someday we should rename this variable to "active_mode"(Jeff)*/
58 pmlmepriv->passive_mode = 1; /* 1: active, 0: passive. */
59 spin_lock_init(&(pmlmepriv->lock));
60 spin_lock_init(&(pmlmepriv->lock2));
61 _init_queue(&(pmlmepriv->free_bss_pool));
62 _init_queue(&(pmlmepriv->scanned_queue));
63 set_scanned_network_val(pmlmepriv, 0);
64 memset(&pmlmepriv->assoc_ssid, 0, sizeof(struct ndis_802_11_ssid));
65 pbuf = kmalloc_array(MAX_BSS_CNT, sizeof(struct wlan_network),
66 GFP_ATOMIC);
67 if (!pbuf)
68 return _FAIL;
69 pmlmepriv->free_bss_buf = pbuf;
70 pnetwork = (struct wlan_network *)pbuf;
71 for (i = 0; i < MAX_BSS_CNT; i++) {
72 INIT_LIST_HEAD(&(pnetwork->list));
73 list_add_tail(&(pnetwork->list),
74 &(pmlmepriv->free_bss_pool.queue));
75 pnetwork++;
76 }
77 pmlmepriv->sitesurveyctrl.last_rx_pkts = 0;
78 pmlmepriv->sitesurveyctrl.last_tx_pkts = 0;
79 pmlmepriv->sitesurveyctrl.traffic_busy = false;
80 /* allocate DMA-able/Non-Page memory for cmd_buf and rsp_buf */
81 r8712_init_mlme_timer(padapter);
82 return _SUCCESS;
83 }
84
_r8712_alloc_network(struct mlme_priv * pmlmepriv)85 struct wlan_network *_r8712_alloc_network(struct mlme_priv *pmlmepriv)
86 {
87 unsigned long irqL;
88 struct wlan_network *pnetwork;
89 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
90
91 spin_lock_irqsave(&free_queue->lock, irqL);
92 pnetwork = list_first_entry_or_null(&free_queue->queue,
93 struct wlan_network, list);
94 if (pnetwork) {
95 list_del_init(&pnetwork->list);
96 pnetwork->last_scanned = jiffies;
97 pmlmepriv->num_of_scanned++;
98 }
99 spin_unlock_irqrestore(&free_queue->lock, irqL);
100 return pnetwork;
101 }
102
_free_network(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork)103 static void _free_network(struct mlme_priv *pmlmepriv,
104 struct wlan_network *pnetwork)
105 {
106 u32 curr_time, delta_time;
107 unsigned long irqL;
108 struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
109
110 if (pnetwork == NULL)
111 return;
112 if (pnetwork->fixed)
113 return;
114 curr_time = jiffies;
115 delta_time = (curr_time - (u32)pnetwork->last_scanned) / HZ;
116 if (delta_time < SCANQUEUE_LIFETIME)
117 return;
118 spin_lock_irqsave(&free_queue->lock, irqL);
119 list_del_init(&pnetwork->list);
120 list_add_tail(&pnetwork->list, &free_queue->queue);
121 pmlmepriv->num_of_scanned--;
122 spin_unlock_irqrestore(&free_queue->lock, irqL);
123 }
124
free_network_nolock(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork)125 static void free_network_nolock(struct mlme_priv *pmlmepriv,
126 struct wlan_network *pnetwork)
127 {
128 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
129
130 if (pnetwork == NULL)
131 return;
132 if (pnetwork->fixed)
133 return;
134 list_del_init(&pnetwork->list);
135 list_add_tail(&pnetwork->list, &free_queue->queue);
136 pmlmepriv->num_of_scanned--;
137 }
138
139
140 /* return the wlan_network with the matching addr
141 * Shall be called under atomic context...
142 * to avoid possible racing condition...
143 */
_r8712_find_network(struct __queue * scanned_queue,u8 * addr)144 static struct wlan_network *_r8712_find_network(struct __queue *scanned_queue,
145 u8 *addr)
146 {
147 unsigned long irqL;
148 struct list_head *phead, *plist;
149 struct wlan_network *pnetwork = NULL;
150
151 if (is_zero_ether_addr(addr))
152 return NULL;
153 spin_lock_irqsave(&scanned_queue->lock, irqL);
154 phead = &scanned_queue->queue;
155 plist = phead->next;
156 while (plist != phead) {
157 pnetwork = container_of(plist, struct wlan_network, list);
158 plist = plist->next;
159 if (!memcmp(addr, pnetwork->network.MacAddress, ETH_ALEN))
160 break;
161 }
162 spin_unlock_irqrestore(&scanned_queue->lock, irqL);
163 return pnetwork;
164 }
165
_free_network_queue(struct _adapter * padapter)166 static void _free_network_queue(struct _adapter *padapter)
167 {
168 unsigned long irqL;
169 struct list_head *phead, *plist;
170 struct wlan_network *pnetwork;
171 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
172 struct __queue *scanned_queue = &pmlmepriv->scanned_queue;
173
174 spin_lock_irqsave(&scanned_queue->lock, irqL);
175 phead = &scanned_queue->queue;
176 plist = phead->next;
177 while (!end_of_queue_search(phead, plist)) {
178 pnetwork = container_of(plist, struct wlan_network, list);
179 plist = plist->next;
180 _free_network(pmlmepriv, pnetwork);
181 }
182 spin_unlock_irqrestore(&scanned_queue->lock, irqL);
183 }
184
r8712_if_up(struct _adapter * padapter)185 sint r8712_if_up(struct _adapter *padapter)
186 {
187 sint res;
188
189 if (padapter->bDriverStopped || padapter->bSurpriseRemoved ||
190 !check_fwstate(&padapter->mlmepriv, _FW_LINKED)) {
191 res = false;
192 } else {
193 res = true;
194 }
195 return res;
196 }
197
r8712_generate_random_ibss(u8 * pibss)198 void r8712_generate_random_ibss(u8 *pibss)
199 {
200 u32 curtime = jiffies;
201
202 pibss[0] = 0x02; /*in ad-hoc mode bit1 must set to 1 */
203 pibss[1] = 0x11;
204 pibss[2] = 0x87;
205 pibss[3] = (u8)(curtime & 0xff);
206 pibss[4] = (u8)((curtime >> 8) & 0xff);
207 pibss[5] = (u8)((curtime >> 16) & 0xff);
208 }
209
r8712_get_wlan_bssid_ex_sz(struct wlan_bssid_ex * bss)210 uint r8712_get_wlan_bssid_ex_sz(struct wlan_bssid_ex *bss)
211 {
212 return sizeof(*bss) + bss->IELength - MAX_IE_SZ;
213 }
214
r8712_get_capability_from_ie(u8 * ie)215 u8 *r8712_get_capability_from_ie(u8 *ie)
216 {
217 return ie + 8 + 2;
218 }
219
r8712_init_mlme_priv(struct _adapter * padapter)220 int r8712_init_mlme_priv(struct _adapter *padapter)
221 {
222 return _init_mlme_priv(padapter);
223 }
224
r8712_free_mlme_priv(struct mlme_priv * pmlmepriv)225 void r8712_free_mlme_priv(struct mlme_priv *pmlmepriv)
226 {
227 kfree(pmlmepriv->free_bss_buf);
228 }
229
alloc_network(struct mlme_priv * pmlmepriv)230 static struct wlan_network *alloc_network(struct mlme_priv *pmlmepriv)
231 {
232 return _r8712_alloc_network(pmlmepriv);
233 }
234
r8712_free_network_queue(struct _adapter * dev)235 void r8712_free_network_queue(struct _adapter *dev)
236 {
237 _free_network_queue(dev);
238 }
239
240 /*
241 * return the wlan_network with the matching addr
242 * Shall be called under atomic context...
243 * to avoid possible racing condition...
244 */
r8712_find_network(struct __queue * scanned_queue,u8 * addr)245 static struct wlan_network *r8712_find_network(struct __queue *scanned_queue,
246 u8 *addr)
247 {
248 struct wlan_network *pnetwork = _r8712_find_network(scanned_queue,
249 addr);
250
251 return pnetwork;
252 }
253
r8712_is_same_ibss(struct _adapter * adapter,struct wlan_network * pnetwork)254 int r8712_is_same_ibss(struct _adapter *adapter, struct wlan_network *pnetwork)
255 {
256 int ret = true;
257 struct security_priv *psecuritypriv = &adapter->securitypriv;
258
259 if ((psecuritypriv->PrivacyAlgrthm != _NO_PRIVACY_) &&
260 (pnetwork->network.Privacy == cpu_to_le32(0)))
261 ret = false;
262 else if ((psecuritypriv->PrivacyAlgrthm == _NO_PRIVACY_) &&
263 (pnetwork->network.Privacy == cpu_to_le32(1)))
264 ret = false;
265 else
266 ret = true;
267 return ret;
268
269 }
270
is_same_network(struct wlan_bssid_ex * src,struct wlan_bssid_ex * dst)271 static int is_same_network(struct wlan_bssid_ex *src,
272 struct wlan_bssid_ex *dst)
273 {
274 u16 s_cap, d_cap;
275
276 memcpy((u8 *)&s_cap, r8712_get_capability_from_ie(src->IEs), 2);
277 memcpy((u8 *)&d_cap, r8712_get_capability_from_ie(dst->IEs), 2);
278 return (src->Ssid.SsidLength == dst->Ssid.SsidLength) &&
279 (src->Configuration.DSConfig ==
280 dst->Configuration.DSConfig) &&
281 ((!memcmp(src->MacAddress, dst->MacAddress,
282 ETH_ALEN))) &&
283 ((!memcmp(src->Ssid.Ssid,
284 dst->Ssid.Ssid,
285 src->Ssid.SsidLength))) &&
286 ((s_cap & WLAN_CAPABILITY_IBSS) ==
287 (d_cap & WLAN_CAPABILITY_IBSS)) &&
288 ((s_cap & WLAN_CAPABILITY_BSS) ==
289 (d_cap & WLAN_CAPABILITY_BSS));
290
291 }
292
r8712_get_oldest_wlan_network(struct __queue * scanned_queue)293 struct wlan_network *r8712_get_oldest_wlan_network(
294 struct __queue *scanned_queue)
295 {
296 struct list_head *plist, *phead;
297 struct wlan_network *pwlan = NULL;
298 struct wlan_network *oldest = NULL;
299
300 phead = &scanned_queue->queue;
301 plist = phead->next;
302 while (1) {
303 if (end_of_queue_search(phead, plist) == true)
304 break;
305 pwlan = container_of(plist, struct wlan_network, list);
306 if (pwlan->fixed != true) {
307 if (oldest == NULL ||
308 time_after((unsigned long)oldest->last_scanned,
309 (unsigned long)pwlan->last_scanned))
310 oldest = pwlan;
311 }
312 plist = plist->next;
313 }
314 return oldest;
315 }
316
update_network(struct wlan_bssid_ex * dst,struct wlan_bssid_ex * src,struct _adapter * padapter)317 static void update_network(struct wlan_bssid_ex *dst,
318 struct wlan_bssid_ex *src,
319 struct _adapter *padapter)
320 {
321 u32 last_evm = 0, tmpVal;
322
323 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) &&
324 is_same_network(&(padapter->mlmepriv.cur_network.network), src)) {
325 if (padapter->recvpriv.signal_qual_data.total_num++ >=
326 PHY_LINKQUALITY_SLID_WIN_MAX) {
327 padapter->recvpriv.signal_qual_data.total_num =
328 PHY_LINKQUALITY_SLID_WIN_MAX;
329 last_evm = padapter->recvpriv.signal_qual_data.
330 elements[padapter->recvpriv.
331 signal_qual_data.index];
332 padapter->recvpriv.signal_qual_data.total_val -=
333 last_evm;
334 }
335 padapter->recvpriv.signal_qual_data.total_val += src->Rssi;
336
337 padapter->recvpriv.signal_qual_data.
338 elements[padapter->recvpriv.signal_qual_data.
339 index++] = src->Rssi;
340 if (padapter->recvpriv.signal_qual_data.index >=
341 PHY_LINKQUALITY_SLID_WIN_MAX)
342 padapter->recvpriv.signal_qual_data.index = 0;
343 /* <1> Showed on UI for user, in percentage. */
344 tmpVal = padapter->recvpriv.signal_qual_data.total_val /
345 padapter->recvpriv.signal_qual_data.total_num;
346 padapter->recvpriv.signal = (u8)tmpVal;
347
348 src->Rssi = padapter->recvpriv.signal;
349 } else {
350 src->Rssi = (src->Rssi + dst->Rssi) / 2;
351 }
352 memcpy((u8 *)dst, (u8 *)src, r8712_get_wlan_bssid_ex_sz(src));
353 }
354
update_current_network(struct _adapter * adapter,struct wlan_bssid_ex * pnetwork)355 static void update_current_network(struct _adapter *adapter,
356 struct wlan_bssid_ex *pnetwork)
357 {
358 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
359
360 if (is_same_network(&(pmlmepriv->cur_network.network), pnetwork)) {
361 update_network(&(pmlmepriv->cur_network.network),
362 pnetwork, adapter);
363 r8712_update_protection(adapter,
364 (pmlmepriv->cur_network.network.IEs) +
365 sizeof(struct NDIS_802_11_FIXED_IEs),
366 pmlmepriv->cur_network.network.IELength);
367 }
368 }
369
370 /* Caller must hold pmlmepriv->lock first */
update_scanned_network(struct _adapter * adapter,struct wlan_bssid_ex * target)371 static void update_scanned_network(struct _adapter *adapter,
372 struct wlan_bssid_ex *target)
373 {
374 struct list_head *plist, *phead;
375
376 u32 bssid_ex_sz;
377 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
378 struct __queue *queue = &pmlmepriv->scanned_queue;
379 struct wlan_network *pnetwork = NULL;
380 struct wlan_network *oldest = NULL;
381
382 phead = &queue->queue;
383 plist = phead->next;
384
385 while (1) {
386 if (end_of_queue_search(phead, plist))
387 break;
388
389 pnetwork = container_of(plist, struct wlan_network, list);
390 if (is_same_network(&pnetwork->network, target))
391 break;
392 if ((oldest == ((struct wlan_network *)0)) ||
393 time_after((unsigned long)oldest->last_scanned,
394 (unsigned long)pnetwork->last_scanned))
395 oldest = pnetwork;
396
397 plist = plist->next;
398 }
399
400
401 /* If we didn't find a match, then get a new network slot to initialize
402 * with this beacon's information
403 */
404 if (end_of_queue_search(phead, plist)) {
405 if (list_empty(&pmlmepriv->free_bss_pool.queue)) {
406 /* If there are no more slots, expire the oldest */
407 pnetwork = oldest;
408 target->Rssi = (pnetwork->network.Rssi +
409 target->Rssi) / 2;
410 memcpy(&pnetwork->network, target,
411 r8712_get_wlan_bssid_ex_sz(target));
412 pnetwork->last_scanned = jiffies;
413 } else {
414 /* Otherwise just pull from the free list */
415 /* update scan_time */
416 pnetwork = alloc_network(pmlmepriv);
417 if (pnetwork == NULL)
418 return;
419 bssid_ex_sz = r8712_get_wlan_bssid_ex_sz(target);
420 target->Length = bssid_ex_sz;
421 memcpy(&pnetwork->network, target, bssid_ex_sz);
422 list_add_tail(&pnetwork->list, &queue->queue);
423 }
424 } else {
425 /* we have an entry and we are going to update it. But
426 * this entry may be already expired. In this case we
427 * do the same as we found a new net and call the new_net
428 * handler
429 */
430 update_network(&pnetwork->network, target, adapter);
431 pnetwork->last_scanned = jiffies;
432 }
433 }
434
rtl8711_add_network(struct _adapter * adapter,struct wlan_bssid_ex * pnetwork)435 static void rtl8711_add_network(struct _adapter *adapter,
436 struct wlan_bssid_ex *pnetwork)
437 {
438 unsigned long irqL;
439 struct mlme_priv *pmlmepriv = &(((struct _adapter *)adapter)->mlmepriv);
440 struct __queue *queue = &pmlmepriv->scanned_queue;
441
442 spin_lock_irqsave(&queue->lock, irqL);
443 update_current_network(adapter, pnetwork);
444 update_scanned_network(adapter, pnetwork);
445 spin_unlock_irqrestore(&queue->lock, irqL);
446 }
447
448 /*select the desired network based on the capability of the (i)bss.
449 * check items: (1) security
450 * (2) network_type
451 * (3) WMM
452 * (4) HT
453 * (5) others
454 */
is_desired_network(struct _adapter * adapter,struct wlan_network * pnetwork)455 static int is_desired_network(struct _adapter *adapter,
456 struct wlan_network *pnetwork)
457 {
458 u8 wps_ie[512];
459 uint wps_ielen;
460 int bselected = true;
461 struct security_priv *psecuritypriv = &adapter->securitypriv;
462
463 if (psecuritypriv->wps_phase) {
464 if (r8712_get_wps_ie(pnetwork->network.IEs,
465 pnetwork->network.IELength, wps_ie,
466 &wps_ielen))
467 return true;
468 return false;
469 }
470 if ((psecuritypriv->PrivacyAlgrthm != _NO_PRIVACY_) &&
471 (pnetwork->network.Privacy == 0))
472 bselected = false;
473 if (check_fwstate(&adapter->mlmepriv, WIFI_ADHOC_STATE)) {
474 if (pnetwork->network.InfrastructureMode !=
475 adapter->mlmepriv.cur_network.network.
476 InfrastructureMode)
477 bselected = false;
478 }
479 return bselected;
480 }
481
482 /* TODO: Perry : For Power Management */
r8712_atimdone_event_callback(struct _adapter * adapter,u8 * pbuf)483 void r8712_atimdone_event_callback(struct _adapter *adapter, u8 *pbuf)
484 {
485 }
486
r8712_survey_event_callback(struct _adapter * adapter,u8 * pbuf)487 void r8712_survey_event_callback(struct _adapter *adapter, u8 *pbuf)
488 {
489 unsigned long flags;
490 u32 len;
491 struct wlan_bssid_ex *pnetwork;
492 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
493
494 pnetwork = (struct wlan_bssid_ex *)pbuf;
495 #ifdef __BIG_ENDIAN
496 /* endian_convert */
497 pnetwork->Length = le32_to_cpu(pnetwork->Length);
498 pnetwork->Ssid.SsidLength = le32_to_cpu(pnetwork->Ssid.SsidLength);
499 pnetwork->Privacy = le32_to_cpu(pnetwork->Privacy);
500 pnetwork->Rssi = le32_to_cpu(pnetwork->Rssi);
501 pnetwork->NetworkTypeInUse = le32_to_cpu(pnetwork->NetworkTypeInUse);
502 pnetwork->Configuration.ATIMWindow =
503 le32_to_cpu(pnetwork->Configuration.ATIMWindow);
504 pnetwork->Configuration.BeaconPeriod =
505 le32_to_cpu(pnetwork->Configuration.BeaconPeriod);
506 pnetwork->Configuration.DSConfig =
507 le32_to_cpu(pnetwork->Configuration.DSConfig);
508 pnetwork->Configuration.FHConfig.DwellTime =
509 le32_to_cpu(pnetwork->Configuration.FHConfig.DwellTime);
510 pnetwork->Configuration.FHConfig.HopPattern =
511 le32_to_cpu(pnetwork->Configuration.FHConfig.HopPattern);
512 pnetwork->Configuration.FHConfig.HopSet =
513 le32_to_cpu(pnetwork->Configuration.FHConfig.HopSet);
514 pnetwork->Configuration.FHConfig.Length =
515 le32_to_cpu(pnetwork->Configuration.FHConfig.Length);
516 pnetwork->Configuration.Length =
517 le32_to_cpu(pnetwork->Configuration.Length);
518 pnetwork->InfrastructureMode =
519 le32_to_cpu(pnetwork->InfrastructureMode);
520 pnetwork->IELength = le32_to_cpu(pnetwork->IELength);
521 #endif
522 len = r8712_get_wlan_bssid_ex_sz(pnetwork);
523 if (len > sizeof(struct wlan_bssid_ex))
524 return;
525 spin_lock_irqsave(&pmlmepriv->lock2, flags);
526 /* update IBSS_network 's timestamp */
527 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) {
528 if (!memcmp(&(pmlmepriv->cur_network.network.MacAddress),
529 pnetwork->MacAddress, ETH_ALEN)) {
530 struct wlan_network *ibss_wlan = NULL;
531
532 memcpy(pmlmepriv->cur_network.network.IEs,
533 pnetwork->IEs, 8);
534 ibss_wlan = r8712_find_network(
535 &pmlmepriv->scanned_queue,
536 pnetwork->MacAddress);
537 if (ibss_wlan) {
538 memcpy(ibss_wlan->network.IEs,
539 pnetwork->IEs, 8);
540 goto exit;
541 }
542 }
543 }
544 /* lock pmlmepriv->lock when you accessing network_q */
545 if (!check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
546 if (pnetwork->Ssid.Ssid[0] != 0) {
547 rtl8711_add_network(adapter, pnetwork);
548 } else {
549 pnetwork->Ssid.SsidLength = 8;
550 memcpy(pnetwork->Ssid.Ssid, "<hidden>", 8);
551 rtl8711_add_network(adapter, pnetwork);
552 }
553 }
554 exit:
555 spin_unlock_irqrestore(&pmlmepriv->lock2, flags);
556 }
557
r8712_surveydone_event_callback(struct _adapter * adapter,u8 * pbuf)558 void r8712_surveydone_event_callback(struct _adapter *adapter, u8 *pbuf)
559 {
560 unsigned long irqL;
561 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
562
563 spin_lock_irqsave(&pmlmepriv->lock, irqL);
564
565 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
566 del_timer(&pmlmepriv->scan_to_timer);
567
568 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
569 }
570
571 if (pmlmepriv->to_join) {
572 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
573 if (!check_fwstate(pmlmepriv, _FW_LINKED)) {
574 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
575
576 if (r8712_select_and_join_from_scan(pmlmepriv)
577 == _SUCCESS)
578 mod_timer(&pmlmepriv->assoc_timer, jiffies +
579 msecs_to_jiffies(MAX_JOIN_TIMEOUT));
580 else {
581 struct wlan_bssid_ex *pdev_network =
582 &(adapter->registrypriv.dev_network);
583 u8 *pibss =
584 adapter->registrypriv.
585 dev_network.MacAddress;
586 pmlmepriv->fw_state ^= _FW_UNDER_SURVEY;
587 memcpy(&pdev_network->Ssid,
588 &pmlmepriv->assoc_ssid,
589 sizeof(struct
590 ndis_802_11_ssid));
591 r8712_update_registrypriv_dev_network
592 (adapter);
593 r8712_generate_random_ibss(pibss);
594 pmlmepriv->fw_state =
595 WIFI_ADHOC_MASTER_STATE;
596 pmlmepriv->to_join = false;
597 }
598 }
599 } else {
600 pmlmepriv->to_join = false;
601 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
602 if (r8712_select_and_join_from_scan(pmlmepriv) ==
603 _SUCCESS)
604 mod_timer(&pmlmepriv->assoc_timer, jiffies +
605 msecs_to_jiffies(MAX_JOIN_TIMEOUT));
606 else
607 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
608 }
609 }
610 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
611 }
612
613 /*
614 *r8712_free_assoc_resources: the caller has to lock pmlmepriv->lock
615 */
r8712_free_assoc_resources(struct _adapter * adapter)616 void r8712_free_assoc_resources(struct _adapter *adapter)
617 {
618 unsigned long irqL;
619 struct wlan_network *pwlan = NULL;
620 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
621 struct sta_priv *pstapriv = &adapter->stapriv;
622 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
623
624 pwlan = r8712_find_network(&pmlmepriv->scanned_queue,
625 tgt_network->network.MacAddress);
626
627 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE)) {
628 struct sta_info *psta;
629
630 psta = r8712_get_stainfo(&adapter->stapriv,
631 tgt_network->network.MacAddress);
632
633 spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
634 r8712_free_stainfo(adapter, psta);
635 spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
636 }
637
638 if (check_fwstate(pmlmepriv,
639 WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE | WIFI_AP_STATE))
640 r8712_free_all_stainfo(adapter);
641 if (pwlan)
642 pwlan->fixed = false;
643
644 if (((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) &&
645 (adapter->stapriv.asoc_sta_count == 1)))
646 free_network_nolock(pmlmepriv, pwlan);
647 }
648
649 /*
650 * r8712_indicate_connect: the caller has to lock pmlmepriv->lock
651 */
r8712_indicate_connect(struct _adapter * padapter)652 void r8712_indicate_connect(struct _adapter *padapter)
653 {
654 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
655
656 pmlmepriv->to_join = false;
657 set_fwstate(pmlmepriv, _FW_LINKED);
658 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_LINK);
659 r8712_os_indicate_connect(padapter);
660 if (padapter->registrypriv.power_mgnt > PS_MODE_ACTIVE)
661 mod_timer(&pmlmepriv->dhcp_timer,
662 jiffies + msecs_to_jiffies(60000));
663 }
664
665
666 /*
667 * r8712_ind_disconnect: the caller has to lock pmlmepriv->lock
668 */
r8712_ind_disconnect(struct _adapter * padapter)669 void r8712_ind_disconnect(struct _adapter *padapter)
670 {
671 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
672
673 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
674 _clr_fwstate_(pmlmepriv, _FW_LINKED);
675 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_NO_LINK);
676 r8712_os_indicate_disconnect(padapter);
677 }
678 if (padapter->pwrctrlpriv.pwr_mode !=
679 padapter->registrypriv.power_mgnt) {
680 del_timer(&pmlmepriv->dhcp_timer);
681 r8712_set_ps_mode(padapter, padapter->registrypriv.power_mgnt,
682 padapter->registrypriv.smart_ps);
683 }
684 }
685
686 /*Notes:
687 *pnetwork : returns from r8712_joinbss_event_callback
688 *ptarget_wlan: found from scanned_queue
689 *if join_res > 0, for (fw_state==WIFI_STATION_STATE), we check if
690 * "ptarget_sta" & "ptarget_wlan" exist.
691 *if join_res > 0, for (fw_state==WIFI_ADHOC_STATE), we only check
692 * if "ptarget_wlan" exist.
693 *if join_res > 0, update "cur_network->network" from
694 * "pnetwork->network" if (ptarget_wlan !=NULL).
695 */
r8712_joinbss_event_callback(struct _adapter * adapter,u8 * pbuf)696 void r8712_joinbss_event_callback(struct _adapter *adapter, u8 *pbuf)
697 {
698 unsigned long irqL = 0, irqL2;
699 struct sta_info *ptarget_sta = NULL, *pcur_sta = NULL;
700 struct sta_priv *pstapriv = &adapter->stapriv;
701 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
702 struct wlan_network *cur_network = &pmlmepriv->cur_network;
703 struct wlan_network *pcur_wlan = NULL, *ptarget_wlan = NULL;
704 unsigned int the_same_macaddr = false;
705 struct wlan_network *pnetwork;
706
707 if (sizeof(struct list_head) == 4 * sizeof(u32)) {
708 pnetwork = kmalloc(sizeof(struct wlan_network), GFP_ATOMIC);
709 if (!pnetwork)
710 return;
711 memcpy((u8 *)pnetwork + 16, (u8 *)pbuf + 8,
712 sizeof(struct wlan_network) - 16);
713 } else {
714 pnetwork = (struct wlan_network *)pbuf;
715 }
716
717 #ifdef __BIG_ENDIAN
718 /* endian_convert */
719 pnetwork->join_res = le32_to_cpu(pnetwork->join_res);
720 pnetwork->network_type = le32_to_cpu(pnetwork->network_type);
721 pnetwork->network.Length = le32_to_cpu(pnetwork->network.Length);
722 pnetwork->network.Ssid.SsidLength =
723 le32_to_cpu(pnetwork->network.Ssid.SsidLength);
724 pnetwork->network.Privacy = le32_to_cpu(pnetwork->network.Privacy);
725 pnetwork->network.Rssi = le32_to_cpu(pnetwork->network.Rssi);
726 pnetwork->network.NetworkTypeInUse =
727 le32_to_cpu(pnetwork->network.NetworkTypeInUse);
728 pnetwork->network.Configuration.ATIMWindow =
729 le32_to_cpu(pnetwork->network.Configuration.ATIMWindow);
730 pnetwork->network.Configuration.BeaconPeriod =
731 le32_to_cpu(pnetwork->network.Configuration.BeaconPeriod);
732 pnetwork->network.Configuration.DSConfig =
733 le32_to_cpu(pnetwork->network.Configuration.DSConfig);
734 pnetwork->network.Configuration.FHConfig.DwellTime =
735 le32_to_cpu(pnetwork->network.Configuration.FHConfig.
736 DwellTime);
737 pnetwork->network.Configuration.FHConfig.HopPattern =
738 le32_to_cpu(pnetwork->network.Configuration.
739 FHConfig.HopPattern);
740 pnetwork->network.Configuration.FHConfig.HopSet =
741 le32_to_cpu(pnetwork->network.Configuration.FHConfig.HopSet);
742 pnetwork->network.Configuration.FHConfig.Length =
743 le32_to_cpu(pnetwork->network.Configuration.FHConfig.Length);
744 pnetwork->network.Configuration.Length =
745 le32_to_cpu(pnetwork->network.Configuration.Length);
746 pnetwork->network.InfrastructureMode =
747 le32_to_cpu(pnetwork->network.InfrastructureMode);
748 pnetwork->network.IELength = le32_to_cpu(pnetwork->network.IELength);
749 #endif
750
751 the_same_macaddr = !memcmp(pnetwork->network.MacAddress,
752 cur_network->network.MacAddress, ETH_ALEN);
753 pnetwork->network.Length =
754 r8712_get_wlan_bssid_ex_sz(&pnetwork->network);
755 spin_lock_irqsave(&pmlmepriv->lock, irqL);
756 if (pnetwork->network.Length > sizeof(struct wlan_bssid_ex))
757 goto ignore_joinbss_callback;
758 if (pnetwork->join_res > 0) {
759 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
760 /*s1. find ptarget_wlan*/
761 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
762 if (the_same_macaddr) {
763 ptarget_wlan =
764 r8712_find_network(&pmlmepriv->
765 scanned_queue,
766 cur_network->network.MacAddress);
767 } else {
768 pcur_wlan =
769 r8712_find_network(&pmlmepriv->
770 scanned_queue,
771 cur_network->network.MacAddress);
772 pcur_wlan->fixed = false;
773
774 pcur_sta = r8712_get_stainfo(pstapriv,
775 cur_network->network.MacAddress);
776 spin_lock_irqsave(&pstapriv->
777 sta_hash_lock, irqL2);
778 r8712_free_stainfo(adapter, pcur_sta);
779 spin_unlock_irqrestore(&(pstapriv->
780 sta_hash_lock), irqL2);
781
782 ptarget_wlan =
783 r8712_find_network(&pmlmepriv->
784 scanned_queue,
785 pnetwork->network.
786 MacAddress);
787 if (ptarget_wlan)
788 ptarget_wlan->fixed = true;
789 }
790 } else {
791 ptarget_wlan = r8712_find_network(&pmlmepriv->
792 scanned_queue,
793 pnetwork->network.MacAddress);
794 if (ptarget_wlan)
795 ptarget_wlan->fixed = true;
796 }
797
798 if (ptarget_wlan == NULL) {
799 if (check_fwstate(pmlmepriv,
800 _FW_UNDER_LINKING))
801 pmlmepriv->fw_state ^=
802 _FW_UNDER_LINKING;
803 goto ignore_joinbss_callback;
804 }
805
806 /*s2. find ptarget_sta & update ptarget_sta*/
807 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
808 if (the_same_macaddr) {
809 ptarget_sta =
810 r8712_get_stainfo(pstapriv,
811 pnetwork->network.MacAddress);
812 if (ptarget_sta == NULL)
813 ptarget_sta =
814 r8712_alloc_stainfo(pstapriv,
815 pnetwork->network.MacAddress);
816 } else {
817 ptarget_sta =
818 r8712_alloc_stainfo(pstapriv,
819 pnetwork->network.MacAddress);
820 }
821 if (ptarget_sta) /*update ptarget_sta*/ {
822 ptarget_sta->aid = pnetwork->join_res;
823 ptarget_sta->qos_option = 1;
824 ptarget_sta->mac_id = 5;
825 if (adapter->securitypriv.
826 AuthAlgrthm == 2) {
827 adapter->securitypriv.
828 binstallGrpkey =
829 false;
830 adapter->securitypriv.
831 busetkipkey =
832 false;
833 adapter->securitypriv.
834 bgrpkey_handshake =
835 false;
836 ptarget_sta->ieee8021x_blocked
837 = true;
838 ptarget_sta->XPrivacy =
839 adapter->securitypriv.
840 PrivacyAlgrthm;
841 memset((u8 *)&ptarget_sta->
842 x_UncstKey,
843 0,
844 sizeof(union Keytype));
845 memset((u8 *)&ptarget_sta->
846 tkiprxmickey,
847 0,
848 sizeof(union Keytype));
849 memset((u8 *)&ptarget_sta->
850 tkiptxmickey,
851 0,
852 sizeof(union Keytype));
853 memset((u8 *)&ptarget_sta->
854 txpn, 0,
855 sizeof(union pn48));
856 memset((u8 *)&ptarget_sta->
857 rxpn, 0,
858 sizeof(union pn48));
859 }
860 } else {
861 if (check_fwstate(pmlmepriv,
862 _FW_UNDER_LINKING))
863 pmlmepriv->fw_state ^=
864 _FW_UNDER_LINKING;
865 goto ignore_joinbss_callback;
866 }
867 }
868
869 /*s3. update cur_network & indicate connect*/
870 memcpy(&cur_network->network, &pnetwork->network,
871 pnetwork->network.Length);
872 cur_network->aid = pnetwork->join_res;
873 /*update fw_state will clr _FW_UNDER_LINKING*/
874 switch (pnetwork->network.InfrastructureMode) {
875 case Ndis802_11Infrastructure:
876 pmlmepriv->fw_state = WIFI_STATION_STATE;
877 break;
878 case Ndis802_11IBSS:
879 pmlmepriv->fw_state = WIFI_ADHOC_STATE;
880 break;
881 default:
882 pmlmepriv->fw_state = WIFI_NULL_STATE;
883 break;
884 }
885 r8712_update_protection(adapter,
886 (cur_network->network.IEs) +
887 sizeof(struct NDIS_802_11_FIXED_IEs),
888 (cur_network->network.IELength));
889 /*TODO: update HT_Capability*/
890 update_ht_cap(adapter, cur_network->network.IEs,
891 cur_network->network.IELength);
892 /*indicate connect*/
893 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE))
894 r8712_indicate_connect(adapter);
895 del_timer(&pmlmepriv->assoc_timer);
896 } else {
897 goto ignore_joinbss_callback;
898 }
899 } else {
900 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
901 mod_timer(&pmlmepriv->assoc_timer,
902 jiffies + msecs_to_jiffies(1));
903 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
904 }
905 }
906 ignore_joinbss_callback:
907 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
908 if (sizeof(struct list_head) == 4 * sizeof(u32))
909 kfree(pnetwork);
910 }
911
r8712_stassoc_event_callback(struct _adapter * adapter,u8 * pbuf)912 void r8712_stassoc_event_callback(struct _adapter *adapter, u8 *pbuf)
913 {
914 unsigned long irqL;
915 struct sta_info *psta;
916 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
917 struct stassoc_event *pstassoc = (struct stassoc_event *)pbuf;
918
919 /* to do: */
920 if (!r8712_access_ctrl(&adapter->acl_list, pstassoc->macaddr))
921 return;
922 psta = r8712_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
923 if (psta != NULL) {
924 /*the sta have been in sta_info_queue => do nothing
925 *(between drv has received this event before and
926 * fw have not yet to set key to CAM_ENTRY)
927 */
928 return;
929 }
930
931 psta = r8712_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
932 if (psta == NULL)
933 return;
934 /* to do : init sta_info variable */
935 psta->qos_option = 0;
936 psta->mac_id = le32_to_cpu(pstassoc->cam_id);
937 /* psta->aid = (uint)pstassoc->cam_id; */
938
939 if (adapter->securitypriv.AuthAlgrthm == 2)
940 psta->XPrivacy = adapter->securitypriv.PrivacyAlgrthm;
941 psta->ieee8021x_blocked = false;
942 spin_lock_irqsave(&pmlmepriv->lock, irqL);
943 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
944 check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
945 if (adapter->stapriv.asoc_sta_count == 2) {
946 /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
947 r8712_indicate_connect(adapter);
948 }
949 }
950 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
951 }
952
r8712_stadel_event_callback(struct _adapter * adapter,u8 * pbuf)953 void r8712_stadel_event_callback(struct _adapter *adapter, u8 *pbuf)
954 {
955 unsigned long irqL, irqL2;
956 struct sta_info *psta;
957 struct wlan_network *pwlan = NULL;
958 struct wlan_bssid_ex *pdev_network = NULL;
959 u8 *pibss = NULL;
960 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
961 struct stadel_event *pstadel = (struct stadel_event *)pbuf;
962 struct sta_priv *pstapriv = &adapter->stapriv;
963 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
964
965 spin_lock_irqsave(&pmlmepriv->lock, irqL2);
966 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
967 r8712_ind_disconnect(adapter);
968 r8712_free_assoc_resources(adapter);
969 }
970 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE |
971 WIFI_ADHOC_STATE)) {
972 psta = r8712_get_stainfo(&adapter->stapriv, pstadel->macaddr);
973 spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
974 r8712_free_stainfo(adapter, psta);
975 spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
976 if (adapter->stapriv.asoc_sta_count == 1) {
977 /*a sta + bc/mc_stainfo (not Ibss_stainfo) */
978 pwlan = r8712_find_network(&pmlmepriv->scanned_queue,
979 tgt_network->network.MacAddress);
980 if (pwlan) {
981 pwlan->fixed = false;
982 free_network_nolock(pmlmepriv, pwlan);
983 }
984 /*re-create ibss*/
985 pdev_network = &(adapter->registrypriv.dev_network);
986 pibss = adapter->registrypriv.dev_network.MacAddress;
987 memcpy(pdev_network, &tgt_network->network,
988 r8712_get_wlan_bssid_ex_sz(&tgt_network->
989 network));
990 memcpy(&pdev_network->Ssid,
991 &pmlmepriv->assoc_ssid,
992 sizeof(struct ndis_802_11_ssid));
993 r8712_update_registrypriv_dev_network(adapter);
994 r8712_generate_random_ibss(pibss);
995 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
996 _clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
997 set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
998 }
999 }
1000 }
1001 spin_unlock_irqrestore(&pmlmepriv->lock, irqL2);
1002 }
1003
r8712_cpwm_event_callback(struct _adapter * adapter,u8 * pbuf)1004 void r8712_cpwm_event_callback(struct _adapter *adapter, u8 *pbuf)
1005 {
1006 struct reportpwrstate_parm *preportpwrstate =
1007 (struct reportpwrstate_parm *)pbuf;
1008
1009 preportpwrstate->state |= (u8)(adapter->pwrctrlpriv.cpwm_tog + 0x80);
1010 r8712_cpwm_int_hdl(adapter, preportpwrstate);
1011 }
1012
1013 /* When the Netgear 3500 AP is with WPA2PSK-AES mode, it will send
1014 * the ADDBA req frame with start seq control = 0 to wifi client after
1015 * the WPA handshake and the seqence number of following data packet
1016 * will be 0. In this case, the Rx reorder sequence is not longer than 0
1017 * and the WiFi client will drop the data with seq number 0.
1018 * So, the 8712 firmware has to inform driver with receiving the
1019 * ADDBA-Req frame so that the driver can reset the
1020 * sequence value of Rx reorder control.
1021 */
r8712_got_addbareq_event_callback(struct _adapter * adapter,u8 * pbuf)1022 void r8712_got_addbareq_event_callback(struct _adapter *adapter, u8 *pbuf)
1023 {
1024 struct ADDBA_Req_Report_parm *pAddbareq_pram =
1025 (struct ADDBA_Req_Report_parm *)pbuf;
1026 struct sta_info *psta;
1027 struct sta_priv *pstapriv = &adapter->stapriv;
1028 struct recv_reorder_ctrl *precvreorder_ctrl = NULL;
1029
1030 psta = r8712_get_stainfo(pstapriv, pAddbareq_pram->MacAddress);
1031 if (psta) {
1032 precvreorder_ctrl =
1033 &psta->recvreorder_ctrl[pAddbareq_pram->tid];
1034 /* set the indicate_seq to 0xffff so that the rx reorder
1035 * can store any following data packet.
1036 */
1037 precvreorder_ctrl->indicate_seq = 0xffff;
1038 }
1039 }
1040
r8712_wpspbc_event_callback(struct _adapter * adapter,u8 * pbuf)1041 void r8712_wpspbc_event_callback(struct _adapter *adapter, u8 *pbuf)
1042 {
1043 if (!adapter->securitypriv.wps_hw_pbc_pressed)
1044 adapter->securitypriv.wps_hw_pbc_pressed = true;
1045 }
1046
_r8712_sitesurvey_ctrl_handler(struct _adapter * adapter)1047 void _r8712_sitesurvey_ctrl_handler(struct _adapter *adapter)
1048 {
1049 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1050 struct sitesurvey_ctrl *psitesurveyctrl = &pmlmepriv->sitesurveyctrl;
1051 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1052 u64 current_tx_pkts;
1053 uint current_rx_pkts;
1054
1055 current_tx_pkts = (adapter->xmitpriv.tx_pkts) -
1056 (psitesurveyctrl->last_tx_pkts);
1057 current_rx_pkts = (adapter->recvpriv.rx_pkts) -
1058 (psitesurveyctrl->last_rx_pkts);
1059 psitesurveyctrl->last_tx_pkts = adapter->xmitpriv.tx_pkts;
1060 psitesurveyctrl->last_rx_pkts = adapter->recvpriv.rx_pkts;
1061 if ((current_tx_pkts > pregistrypriv->busy_thresh) ||
1062 (current_rx_pkts > pregistrypriv->busy_thresh))
1063 psitesurveyctrl->traffic_busy = true;
1064 else
1065 psitesurveyctrl->traffic_busy = false;
1066 }
1067
_r8712_join_timeout_handler(struct _adapter * adapter)1068 void _r8712_join_timeout_handler(struct _adapter *adapter)
1069 {
1070 unsigned long irqL;
1071 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1072
1073 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1074 return;
1075 spin_lock_irqsave(&pmlmepriv->lock, irqL);
1076 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1077 pmlmepriv->to_join = false;
1078 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1079 r8712_os_indicate_disconnect(adapter);
1080 _clr_fwstate_(pmlmepriv, _FW_LINKED);
1081 }
1082 if (adapter->pwrctrlpriv.pwr_mode != adapter->registrypriv.power_mgnt) {
1083 r8712_set_ps_mode(adapter, adapter->registrypriv.power_mgnt,
1084 adapter->registrypriv.smart_ps);
1085 }
1086 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
1087 }
1088
r8712_scan_timeout_handler(struct _adapter * adapter)1089 void r8712_scan_timeout_handler (struct _adapter *adapter)
1090 {
1091 unsigned long irqL;
1092 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1093
1094 spin_lock_irqsave(&pmlmepriv->lock, irqL);
1095 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
1096 pmlmepriv->to_join = false; /* scan fail, so clear to_join flag */
1097 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
1098 }
1099
_r8712_dhcp_timeout_handler(struct _adapter * adapter)1100 void _r8712_dhcp_timeout_handler (struct _adapter *adapter)
1101 {
1102 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1103 return;
1104 if (adapter->pwrctrlpriv.pwr_mode != adapter->registrypriv.power_mgnt)
1105 r8712_set_ps_mode(adapter, adapter->registrypriv.power_mgnt,
1106 adapter->registrypriv.smart_ps);
1107 }
1108
_r8712_wdg_timeout_handler(struct _adapter * adapter)1109 void _r8712_wdg_timeout_handler(struct _adapter *adapter)
1110 {
1111 r8712_wdg_wk_cmd(adapter);
1112 }
1113
r8712_select_and_join_from_scan(struct mlme_priv * pmlmepriv)1114 int r8712_select_and_join_from_scan(struct mlme_priv *pmlmepriv)
1115 {
1116 struct list_head *phead;
1117 unsigned char *dst_ssid, *src_ssid;
1118 struct _adapter *adapter;
1119 struct __queue *queue = NULL;
1120 struct wlan_network *pnetwork = NULL;
1121 struct wlan_network *pnetwork_max_rssi = NULL;
1122
1123 adapter = (struct _adapter *)pmlmepriv->nic_hdl;
1124 queue = &pmlmepriv->scanned_queue;
1125 phead = &queue->queue;
1126 pmlmepriv->pscanned = phead->next;
1127 while (1) {
1128 if (end_of_queue_search(phead, pmlmepriv->pscanned)) {
1129 if ((pmlmepriv->assoc_by_rssi) &&
1130 (pnetwork_max_rssi != NULL)) {
1131 pnetwork = pnetwork_max_rssi;
1132 goto ask_for_joinbss;
1133 }
1134 return _FAIL;
1135 }
1136 pnetwork = container_of(pmlmepriv->pscanned,
1137 struct wlan_network, list);
1138 if (pnetwork == NULL)
1139 return _FAIL;
1140 pmlmepriv->pscanned = pmlmepriv->pscanned->next;
1141 if (pmlmepriv->assoc_by_bssid) {
1142 dst_ssid = pnetwork->network.MacAddress;
1143 src_ssid = pmlmepriv->assoc_bssid;
1144 if (!memcmp(dst_ssid, src_ssid, ETH_ALEN)) {
1145 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1146 if (is_same_network(&pmlmepriv->
1147 cur_network.network,
1148 &pnetwork->network)) {
1149 _clr_fwstate_(pmlmepriv,
1150 _FW_UNDER_LINKING);
1151 /*r8712_indicate_connect again*/
1152 r8712_indicate_connect(adapter);
1153 return 2;
1154 }
1155 r8712_disassoc_cmd(adapter);
1156 r8712_ind_disconnect(adapter);
1157 r8712_free_assoc_resources(adapter);
1158 }
1159 goto ask_for_joinbss;
1160 }
1161 } else if (pmlmepriv->assoc_ssid.SsidLength == 0) {
1162 goto ask_for_joinbss;
1163 }
1164 dst_ssid = pnetwork->network.Ssid.Ssid;
1165 src_ssid = pmlmepriv->assoc_ssid.Ssid;
1166 if ((pnetwork->network.Ssid.SsidLength ==
1167 pmlmepriv->assoc_ssid.SsidLength) &&
1168 (!memcmp(dst_ssid, src_ssid,
1169 pmlmepriv->assoc_ssid.SsidLength))) {
1170 if (pmlmepriv->assoc_by_rssi) {
1171 /* if the ssid is the same, select the bss
1172 * which has the max rssi
1173 */
1174 if (pnetwork_max_rssi) {
1175 if (pnetwork->network.Rssi >
1176 pnetwork_max_rssi->network.Rssi)
1177 pnetwork_max_rssi = pnetwork;
1178 } else {
1179 pnetwork_max_rssi = pnetwork;
1180 }
1181 } else if (is_desired_network(adapter, pnetwork)) {
1182 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1183 r8712_disassoc_cmd(adapter);
1184 r8712_free_assoc_resources(adapter);
1185 }
1186 goto ask_for_joinbss;
1187 }
1188 }
1189 }
1190
1191 ask_for_joinbss:
1192 return r8712_joinbss_cmd(adapter, pnetwork);
1193 }
1194
r8712_set_auth(struct _adapter * adapter,struct security_priv * psecuritypriv)1195 sint r8712_set_auth(struct _adapter *adapter,
1196 struct security_priv *psecuritypriv)
1197 {
1198 struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
1199 struct cmd_obj *pcmd;
1200 struct setauth_parm *psetauthparm;
1201
1202 pcmd = kmalloc(sizeof(*pcmd), GFP_ATOMIC);
1203 if (!pcmd)
1204 return _FAIL;
1205
1206 psetauthparm = kzalloc(sizeof(*psetauthparm), GFP_ATOMIC);
1207 if (!psetauthparm) {
1208 kfree(pcmd);
1209 return _FAIL;
1210 }
1211 psetauthparm->mode = (u8)psecuritypriv->AuthAlgrthm;
1212 pcmd->cmdcode = _SetAuth_CMD_;
1213 pcmd->parmbuf = (unsigned char *)psetauthparm;
1214 pcmd->cmdsz = sizeof(struct setauth_parm);
1215 pcmd->rsp = NULL;
1216 pcmd->rspsz = 0;
1217 INIT_LIST_HEAD(&pcmd->list);
1218 r8712_enqueue_cmd(pcmdpriv, pcmd);
1219 return _SUCCESS;
1220 }
1221
r8712_set_key(struct _adapter * adapter,struct security_priv * psecuritypriv,sint keyid)1222 sint r8712_set_key(struct _adapter *adapter,
1223 struct security_priv *psecuritypriv,
1224 sint keyid)
1225 {
1226 struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
1227 struct cmd_obj *pcmd;
1228 struct setkey_parm *psetkeyparm;
1229 u8 keylen;
1230 sint ret = _SUCCESS;
1231
1232 pcmd = kmalloc(sizeof(*pcmd), GFP_ATOMIC);
1233 if (!pcmd)
1234 return _FAIL;
1235 psetkeyparm = kzalloc(sizeof(*psetkeyparm), GFP_ATOMIC);
1236 if (!psetkeyparm) {
1237 ret = _FAIL;
1238 goto err_free_cmd;
1239 }
1240 if (psecuritypriv->AuthAlgrthm == 2) { /* 802.1X */
1241 psetkeyparm->algorithm =
1242 (u8)psecuritypriv->XGrpPrivacy;
1243 } else { /* WEP */
1244 psetkeyparm->algorithm =
1245 (u8)psecuritypriv->PrivacyAlgrthm;
1246 }
1247 psetkeyparm->keyid = (u8)keyid;
1248
1249 switch (psetkeyparm->algorithm) {
1250 case _WEP40_:
1251 keylen = 5;
1252 memcpy(psetkeyparm->key,
1253 psecuritypriv->DefKey[keyid].skey, keylen);
1254 break;
1255 case _WEP104_:
1256 keylen = 13;
1257 memcpy(psetkeyparm->key,
1258 psecuritypriv->DefKey[keyid].skey, keylen);
1259 break;
1260 case _TKIP_:
1261 if (keyid < 1 || keyid > 2) {
1262 ret = _FAIL;
1263 goto err_free_parm;
1264 }
1265 keylen = 16;
1266 memcpy(psetkeyparm->key,
1267 &psecuritypriv->XGrpKey[keyid - 1], keylen);
1268 psetkeyparm->grpkey = 1;
1269 break;
1270 case _AES_:
1271 if (keyid < 1 || keyid > 2) {
1272 ret = _FAIL;
1273 goto err_free_parm;
1274 }
1275 keylen = 16;
1276 memcpy(psetkeyparm->key,
1277 &psecuritypriv->XGrpKey[keyid - 1], keylen);
1278 psetkeyparm->grpkey = 1;
1279 break;
1280 default:
1281 ret = _FAIL;
1282 goto err_free_parm;
1283 }
1284 pcmd->cmdcode = _SetKey_CMD_;
1285 pcmd->parmbuf = (u8 *)psetkeyparm;
1286 pcmd->cmdsz = (sizeof(struct setkey_parm));
1287 pcmd->rsp = NULL;
1288 pcmd->rspsz = 0;
1289 INIT_LIST_HEAD(&pcmd->list);
1290 r8712_enqueue_cmd(pcmdpriv, pcmd);
1291 return ret;
1292
1293 err_free_parm:
1294 kfree(psetkeyparm);
1295 err_free_cmd:
1296 kfree(pcmd);
1297 return ret;
1298 }
1299
1300 /* adjust IEs for r8712_joinbss_cmd in WMM */
r8712_restruct_wmm_ie(struct _adapter * adapter,u8 * in_ie,u8 * out_ie,uint in_len,uint initial_out_len)1301 int r8712_restruct_wmm_ie(struct _adapter *adapter, u8 *in_ie, u8 *out_ie,
1302 uint in_len, uint initial_out_len)
1303 {
1304 unsigned int ielength = 0;
1305 unsigned int i, j;
1306
1307 i = 12; /* after the fixed IE */
1308 while (i < in_len) {
1309 ielength = initial_out_len;
1310 if (in_ie[i] == 0xDD && in_ie[i + 2] == 0x00 &&
1311 in_ie[i + 3] == 0x50 && in_ie[i + 4] == 0xF2 &&
1312 in_ie[i + 5] == 0x02 && i + 5 < in_len) {
1313 /*WMM element ID and OUI*/
1314 for (j = i; j < i + 9; j++) {
1315 out_ie[ielength] = in_ie[j];
1316 ielength++;
1317 }
1318 out_ie[initial_out_len + 1] = 0x07;
1319 out_ie[initial_out_len + 6] = 0x00;
1320 out_ie[initial_out_len + 8] = 0x00;
1321 break;
1322 }
1323 i += (in_ie[i + 1] + 2); /* to the next IE element */
1324 }
1325 return ielength;
1326 }
1327
1328 /*
1329 * Ported from 8185: IsInPreAuthKeyList().
1330 *
1331 * Search by BSSID,
1332 * Return Value:
1333 * -1 :if there is no pre-auth key in the table
1334 * >=0 :if there is pre-auth key, and return the entry id
1335 */
SecIsInPMKIDList(struct _adapter * Adapter,u8 * bssid)1336 static int SecIsInPMKIDList(struct _adapter *Adapter, u8 *bssid)
1337 {
1338 struct security_priv *psecuritypriv = &Adapter->securitypriv;
1339 int i = 0;
1340
1341 do {
1342 if (psecuritypriv->PMKIDList[i].bUsed &&
1343 (!memcmp(psecuritypriv->PMKIDList[i].Bssid,
1344 bssid, ETH_ALEN)))
1345 break;
1346 i++;
1347
1348 } while (i < NUM_PMKID_CACHE);
1349
1350 if (i == NUM_PMKID_CACHE) {
1351 i = -1; /* Could not find. */
1352 } else {
1353 ; /* There is one Pre-Authentication Key for the
1354 * specific BSSID.
1355 */
1356 }
1357 return i;
1358 }
1359
r8712_restruct_sec_ie(struct _adapter * adapter,u8 * in_ie,u8 * out_ie,uint in_len)1360 sint r8712_restruct_sec_ie(struct _adapter *adapter, u8 *in_ie,
1361 u8 *out_ie, uint in_len)
1362 {
1363 u8 authmode = 0, match;
1364 u8 sec_ie[IW_CUSTOM_MAX], uncst_oui[4], bkup_ie[255];
1365 u8 wpa_oui[4] = {0x0, 0x50, 0xf2, 0x01};
1366 uint ielength, cnt, remove_cnt;
1367 int iEntry;
1368 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1369 struct security_priv *psecuritypriv = &adapter->securitypriv;
1370 uint ndisauthmode = psecuritypriv->ndisauthtype;
1371 uint ndissecuritytype = psecuritypriv->ndisencryptstatus;
1372
1373 if ((ndisauthmode == Ndis802_11AuthModeWPA) ||
1374 (ndisauthmode == Ndis802_11AuthModeWPAPSK)) {
1375 authmode = _WPA_IE_ID_;
1376 uncst_oui[0] = 0x0;
1377 uncst_oui[1] = 0x50;
1378 uncst_oui[2] = 0xf2;
1379 }
1380 if ((ndisauthmode == Ndis802_11AuthModeWPA2) ||
1381 (ndisauthmode == Ndis802_11AuthModeWPA2PSK)) {
1382 authmode = _WPA2_IE_ID_;
1383 uncst_oui[0] = 0x0;
1384 uncst_oui[1] = 0x0f;
1385 uncst_oui[2] = 0xac;
1386 }
1387 switch (ndissecuritytype) {
1388 case Ndis802_11Encryption1Enabled:
1389 case Ndis802_11Encryption1KeyAbsent:
1390 uncst_oui[3] = 0x1;
1391 break;
1392 case Ndis802_11Encryption2Enabled:
1393 case Ndis802_11Encryption2KeyAbsent:
1394 uncst_oui[3] = 0x2;
1395 break;
1396 case Ndis802_11Encryption3Enabled:
1397 case Ndis802_11Encryption3KeyAbsent:
1398 uncst_oui[3] = 0x4;
1399 break;
1400 default:
1401 break;
1402 }
1403 /*Search required WPA or WPA2 IE and copy to sec_ie[] */
1404 cnt = 12;
1405 match = false;
1406 while (cnt < in_len) {
1407 if (in_ie[cnt] == authmode) {
1408 if ((authmode == _WPA_IE_ID_) &&
1409 (!memcmp(&in_ie[cnt + 2], &wpa_oui[0], 4))) {
1410 memcpy(&sec_ie[0], &in_ie[cnt],
1411 in_ie[cnt + 1] + 2);
1412 match = true;
1413 break;
1414 }
1415 if (authmode == _WPA2_IE_ID_) {
1416 memcpy(&sec_ie[0], &in_ie[cnt],
1417 in_ie[cnt + 1] + 2);
1418 match = true;
1419 break;
1420 }
1421 if (((authmode == _WPA_IE_ID_) &&
1422 (!memcmp(&in_ie[cnt + 2], &wpa_oui[0], 4))) ||
1423 (authmode == _WPA2_IE_ID_))
1424 memcpy(&bkup_ie[0], &in_ie[cnt],
1425 in_ie[cnt + 1] + 2);
1426 }
1427 cnt += in_ie[cnt + 1] + 2; /*get next*/
1428 }
1429 /*restruct WPA IE or WPA2 IE in sec_ie[] */
1430 if (match) {
1431 if (sec_ie[0] == _WPA_IE_ID_) {
1432 /* parsing SSN IE to select required encryption
1433 * algorithm, and set the bc/mc encryption algorithm
1434 */
1435 while (true) {
1436 /*check wpa_oui tag*/
1437 if (memcmp(&sec_ie[2], &wpa_oui[0], 4)) {
1438 match = false;
1439 break;
1440 }
1441 if ((sec_ie[6] != 0x01) || (sec_ie[7] != 0x0)) {
1442 /*IE Ver error*/
1443 match = false;
1444 break;
1445 }
1446 if (!memcmp(&sec_ie[8], &wpa_oui[0], 3)) {
1447 /* get bc/mc encryption type (group
1448 * key type)
1449 */
1450 switch (sec_ie[11]) {
1451 case 0x0: /*none*/
1452 psecuritypriv->XGrpPrivacy =
1453 _NO_PRIVACY_;
1454 break;
1455 case 0x1: /*WEP_40*/
1456 psecuritypriv->XGrpPrivacy =
1457 _WEP40_;
1458 break;
1459 case 0x2: /*TKIP*/
1460 psecuritypriv->XGrpPrivacy =
1461 _TKIP_;
1462 break;
1463 case 0x3: /*AESCCMP*/
1464 case 0x4:
1465 psecuritypriv->XGrpPrivacy =
1466 _AES_;
1467 break;
1468 case 0x5: /*WEP_104*/
1469 psecuritypriv->XGrpPrivacy =
1470 _WEP104_;
1471 break;
1472 }
1473 } else {
1474 match = false;
1475 break;
1476 }
1477 if (sec_ie[12] == 0x01) {
1478 /*check the unicast encryption type*/
1479 if (memcmp(&sec_ie[14],
1480 &uncst_oui[0], 4)) {
1481 match = false;
1482 break;
1483
1484 } /*else the uncst_oui is match*/
1485 } else { /*mixed mode, unicast_enc_type > 1*/
1486 /*select the uncst_oui and remove
1487 * the other uncst_oui
1488 */
1489 cnt = sec_ie[12];
1490 remove_cnt = (cnt - 1) * 4;
1491 sec_ie[12] = 0x01;
1492 memcpy(&sec_ie[14], &uncst_oui[0], 4);
1493 /*remove the other unicast suit*/
1494 memcpy(&sec_ie[18],
1495 &sec_ie[18 + remove_cnt],
1496 sec_ie[1] - 18 + 2 -
1497 remove_cnt);
1498 sec_ie[1] = sec_ie[1] - remove_cnt;
1499 }
1500 break;
1501 }
1502 }
1503 if (authmode == _WPA2_IE_ID_) {
1504 /* parsing RSN IE to select required encryption
1505 * algorithm, and set the bc/mc encryption algorithm
1506 */
1507 while (true) {
1508 if ((sec_ie[2] != 0x01) || (sec_ie[3] != 0x0)) {
1509 /*IE Ver error*/
1510 match = false;
1511 break;
1512 }
1513 if (!memcmp(&sec_ie[4], &uncst_oui[0], 3)) {
1514 /*get bc/mc encryption type*/
1515 switch (sec_ie[7]) {
1516 case 0x1: /*WEP_40*/
1517 psecuritypriv->XGrpPrivacy =
1518 _WEP40_;
1519 break;
1520 case 0x2: /*TKIP*/
1521 psecuritypriv->XGrpPrivacy =
1522 _TKIP_;
1523 break;
1524 case 0x4: /*AESWRAP*/
1525 psecuritypriv->XGrpPrivacy =
1526 _AES_;
1527 break;
1528 case 0x5: /*WEP_104*/
1529 psecuritypriv->XGrpPrivacy =
1530 _WEP104_;
1531 break;
1532 default: /*one*/
1533 psecuritypriv->XGrpPrivacy =
1534 _NO_PRIVACY_;
1535 break;
1536 }
1537 } else {
1538 match = false;
1539 break;
1540 }
1541 if (sec_ie[8] == 0x01) {
1542 /*check the unicast encryption type*/
1543 if (memcmp(&sec_ie[10],
1544 &uncst_oui[0], 4)) {
1545 match = false;
1546 break;
1547 } /*else the uncst_oui is match*/
1548 } else { /*mixed mode, unicast_enc_type > 1*/
1549 /*select the uncst_oui and remove the
1550 * other uncst_oui
1551 */
1552 cnt = sec_ie[8];
1553 remove_cnt = (cnt - 1) * 4;
1554 sec_ie[8] = 0x01;
1555 memcpy(&sec_ie[10], &uncst_oui[0], 4);
1556 /*remove the other unicast suit*/
1557 memcpy(&sec_ie[14],
1558 &sec_ie[14 + remove_cnt],
1559 (sec_ie[1] - 14 + 2 -
1560 remove_cnt));
1561 sec_ie[1] = sec_ie[1] - remove_cnt;
1562 }
1563 break;
1564 }
1565 }
1566 }
1567 if ((authmode == _WPA_IE_ID_) || (authmode == _WPA2_IE_ID_)) {
1568 /*copy fixed ie*/
1569 memcpy(out_ie, in_ie, 12);
1570 ielength = 12;
1571 /*copy RSN or SSN*/
1572 if (match) {
1573 memcpy(&out_ie[ielength], &sec_ie[0], sec_ie[1] + 2);
1574 ielength += sec_ie[1] + 2;
1575 if (authmode == _WPA2_IE_ID_) {
1576 /*the Pre-Authentication bit should be zero*/
1577 out_ie[ielength - 1] = 0;
1578 out_ie[ielength - 2] = 0;
1579 }
1580 r8712_report_sec_ie(adapter, authmode, sec_ie);
1581 }
1582 } else {
1583 /*copy fixed ie only*/
1584 memcpy(out_ie, in_ie, 12);
1585 ielength = 12;
1586 if (psecuritypriv->wps_phase) {
1587 memcpy(out_ie + ielength, psecuritypriv->wps_ie,
1588 psecuritypriv->wps_ie_len);
1589 ielength += psecuritypriv->wps_ie_len;
1590 }
1591 }
1592 iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
1593 if (iEntry < 0)
1594 return ielength;
1595 if (authmode == _WPA2_IE_ID_) {
1596 out_ie[ielength] = 1;
1597 ielength++;
1598 out_ie[ielength] = 0; /*PMKID count = 0x0100*/
1599 ielength++;
1600 memcpy(&out_ie[ielength],
1601 &psecuritypriv->PMKIDList[iEntry].PMKID, 16);
1602 ielength += 16;
1603 out_ie[13] += 18;/*PMKID length = 2+16*/
1604 }
1605 return ielength;
1606 }
1607
r8712_init_registrypriv_dev_network(struct _adapter * adapter)1608 void r8712_init_registrypriv_dev_network(struct _adapter *adapter)
1609 {
1610 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1611 struct eeprom_priv *peepriv = &adapter->eeprompriv;
1612 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1613 u8 *myhwaddr = myid(peepriv);
1614
1615 memcpy(pdev_network->MacAddress, myhwaddr, ETH_ALEN);
1616 memcpy(&pdev_network->Ssid, &pregistrypriv->ssid,
1617 sizeof(struct ndis_802_11_ssid));
1618 pdev_network->Configuration.Length =
1619 sizeof(struct NDIS_802_11_CONFIGURATION);
1620 pdev_network->Configuration.BeaconPeriod = 100;
1621 pdev_network->Configuration.FHConfig.Length = 0;
1622 pdev_network->Configuration.FHConfig.HopPattern = 0;
1623 pdev_network->Configuration.FHConfig.HopSet = 0;
1624 pdev_network->Configuration.FHConfig.DwellTime = 0;
1625 }
1626
r8712_update_registrypriv_dev_network(struct _adapter * adapter)1627 void r8712_update_registrypriv_dev_network(struct _adapter *adapter)
1628 {
1629 int sz = 0;
1630 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1631 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1632 struct security_priv *psecuritypriv = &adapter->securitypriv;
1633 struct wlan_network *cur_network = &adapter->mlmepriv.cur_network;
1634
1635 pdev_network->Privacy = cpu_to_le32(psecuritypriv->PrivacyAlgrthm
1636 > 0 ? 1 : 0); /* adhoc no 802.1x */
1637 pdev_network->Rssi = 0;
1638 switch (pregistrypriv->wireless_mode) {
1639 case WIRELESS_11B:
1640 pdev_network->NetworkTypeInUse = Ndis802_11DS;
1641 break;
1642 case WIRELESS_11G:
1643 case WIRELESS_11BG:
1644 pdev_network->NetworkTypeInUse = Ndis802_11OFDM24;
1645 break;
1646 case WIRELESS_11A:
1647 pdev_network->NetworkTypeInUse = Ndis802_11OFDM5;
1648 break;
1649 default:
1650 /* TODO */
1651 break;
1652 }
1653 pdev_network->Configuration.DSConfig = pregistrypriv->channel;
1654 if (cur_network->network.InfrastructureMode == Ndis802_11IBSS)
1655 pdev_network->Configuration.ATIMWindow = 3;
1656 pdev_network->InfrastructureMode = cur_network->network.InfrastructureMode;
1657 /* 1. Supported rates
1658 * 2. IE
1659 */
1660 sz = r8712_generate_ie(pregistrypriv);
1661 pdev_network->IELength = sz;
1662 pdev_network->Length = r8712_get_wlan_bssid_ex_sz(pdev_network);
1663 }
1664
1665 /*the function is at passive_level*/
r8712_joinbss_reset(struct _adapter * padapter)1666 void r8712_joinbss_reset(struct _adapter *padapter)
1667 {
1668 int i;
1669 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1670 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1671
1672 /* todo: if you want to do something io/reg/hw setting before join_bss,
1673 * please add code here
1674 */
1675 phtpriv->ampdu_enable = false;/*reset to disabled*/
1676 for (i = 0; i < 16; i++)
1677 phtpriv->baddbareq_issued[i] = false;/*reset it*/
1678 if (phtpriv->ht_option) {
1679 /* validate usb rx aggregation */
1680 r8712_write8(padapter, 0x102500D9, 48);/*TH = 48 pages, 6k*/
1681 } else {
1682 /* invalidate usb rx aggregation */
1683 /* TH=1 => means that invalidate usb rx aggregation */
1684 r8712_write8(padapter, 0x102500D9, 1);
1685 }
1686 }
1687
1688 /*the function is >= passive_level*/
r8712_restructure_ht_ie(struct _adapter * padapter,u8 * in_ie,u8 * out_ie,uint in_len,uint * pout_len)1689 unsigned int r8712_restructure_ht_ie(struct _adapter *padapter, u8 *in_ie,
1690 u8 *out_ie, uint in_len, uint *pout_len)
1691 {
1692 u32 ielen, out_len;
1693 unsigned char *p;
1694 struct ieee80211_ht_cap ht_capie;
1695 unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
1696 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1697 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
1698 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1699
1700 phtpriv->ht_option = 0;
1701 p = r8712_get_ie(in_ie + 12, _HT_CAPABILITY_IE_, &ielen, in_len - 12);
1702 if (p && (ielen > 0)) {
1703 if (pqospriv->qos_option == 0) {
1704 out_len = *pout_len;
1705 r8712_set_ie(out_ie + out_len, _VENDOR_SPECIFIC_IE_,
1706 _WMM_IE_Length_, WMM_IE, pout_len);
1707 pqospriv->qos_option = 1;
1708 }
1709 out_len = *pout_len;
1710 memset(&ht_capie, 0, sizeof(struct ieee80211_ht_cap));
1711 ht_capie.cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH |
1712 IEEE80211_HT_CAP_SGI_20 |
1713 IEEE80211_HT_CAP_SGI_40 |
1714 IEEE80211_HT_CAP_TX_STBC |
1715 IEEE80211_HT_CAP_MAX_AMSDU |
1716 IEEE80211_HT_CAP_DSSSCCK40);
1717 ht_capie.ampdu_params_info = (IEEE80211_HT_CAP_AMPDU_FACTOR &
1718 0x03) | (IEEE80211_HT_CAP_AMPDU_DENSITY & 0x00);
1719 r8712_set_ie(out_ie + out_len, _HT_CAPABILITY_IE_,
1720 sizeof(struct ieee80211_ht_cap),
1721 (unsigned char *)&ht_capie, pout_len);
1722 phtpriv->ht_option = 1;
1723 }
1724 return phtpriv->ht_option;
1725 }
1726
1727 /* the function is > passive_level (in critical_section) */
update_ht_cap(struct _adapter * padapter,u8 * pie,uint ie_len)1728 static void update_ht_cap(struct _adapter *padapter, u8 *pie, uint ie_len)
1729 {
1730 u8 *p, max_ampdu_sz;
1731 int i, len;
1732 struct sta_info *bmc_sta, *psta;
1733 struct ieee80211_ht_cap *pht_capie;
1734 struct recv_reorder_ctrl *preorder_ctrl;
1735 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1736 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1737 struct registry_priv *pregistrypriv = &padapter->registrypriv;
1738 struct wlan_network *pcur_network = &(pmlmepriv->cur_network);
1739
1740 if (!phtpriv->ht_option)
1741 return;
1742 /* maybe needs check if ap supports rx ampdu. */
1743 if (!phtpriv->ampdu_enable &&
1744 (pregistrypriv->ampdu_enable == 1))
1745 phtpriv->ampdu_enable = true;
1746 /*check Max Rx A-MPDU Size*/
1747 len = 0;
1748 p = r8712_get_ie(pie + sizeof(struct NDIS_802_11_FIXED_IEs),
1749 _HT_CAPABILITY_IE_,
1750 &len, ie_len -
1751 sizeof(struct NDIS_802_11_FIXED_IEs));
1752 if (p && len > 0) {
1753 pht_capie = (struct ieee80211_ht_cap *)(p + 2);
1754 max_ampdu_sz = (pht_capie->ampdu_params_info &
1755 IEEE80211_HT_CAP_AMPDU_FACTOR);
1756 /* max_ampdu_sz (kbytes); */
1757 max_ampdu_sz = 1 << (max_ampdu_sz + 3);
1758 phtpriv->rx_ampdu_maxlen = max_ampdu_sz;
1759 }
1760 /* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info
1761 * if A-MPDU Rx is enabled, resetting rx_ordering_ctrl
1762 * wstart_b(indicate_seq) to default value=0xffff
1763 * todo: check if AP can send A-MPDU packets
1764 */
1765 bmc_sta = r8712_get_bcmc_stainfo(padapter);
1766 if (bmc_sta) {
1767 for (i = 0; i < 16; i++) {
1768 preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
1769 preorder_ctrl->indicate_seq = 0xffff;
1770 preorder_ctrl->wend_b = 0xffff;
1771 }
1772 }
1773 psta = r8712_get_stainfo(&padapter->stapriv,
1774 pcur_network->network.MacAddress);
1775 if (psta) {
1776 for (i = 0; i < 16; i++) {
1777 preorder_ctrl = &psta->recvreorder_ctrl[i];
1778 preorder_ctrl->indicate_seq = 0xffff;
1779 preorder_ctrl->wend_b = 0xffff;
1780 }
1781 }
1782 len = 0;
1783 p = r8712_get_ie(pie + sizeof(struct NDIS_802_11_FIXED_IEs),
1784 _HT_ADD_INFO_IE_, &len,
1785 ie_len - sizeof(struct NDIS_802_11_FIXED_IEs));
1786 }
1787
r8712_issue_addbareq_cmd(struct _adapter * padapter,int priority)1788 void r8712_issue_addbareq_cmd(struct _adapter *padapter, int priority)
1789 {
1790 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1791 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1792
1793 if ((phtpriv->ht_option == 1) && (phtpriv->ampdu_enable)) {
1794 if (!phtpriv->baddbareq_issued[priority]) {
1795 r8712_addbareq_cmd(padapter, (u8)priority);
1796 phtpriv->baddbareq_issued[priority] = true;
1797 }
1798 }
1799 }
1800