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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[mirror_ubuntu-artful-kernel.git] / drivers / staging / rtl8712 / rtl871x_mlme.c
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
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(MAX_BSS_CNT * (sizeof(struct wlan_network)),
66 GFP_ATOMIC);
67 if (pbuf == NULL)
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
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 struct list_head *plist = NULL;
91
92 if (list_empty(&free_queue->queue))
93 return NULL;
94 spin_lock_irqsave(&free_queue->lock, irqL);
95 plist = free_queue->queue.next;
96 pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);
97 list_del_init(&pnetwork->list);
98 pnetwork->last_scanned = jiffies;
99 pmlmepriv->num_of_scanned++;
100 spin_unlock_irqrestore(&free_queue->lock, irqL);
101 return pnetwork;
102 }
103
104 static void _free_network(struct mlme_priv *pmlmepriv,
105 struct wlan_network *pnetwork)
106 {
107 u32 curr_time, delta_time;
108 unsigned long irqL;
109 struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
110
111 if (pnetwork == NULL)
112 return;
113 if (pnetwork->fixed == true)
114 return;
115 curr_time = jiffies;
116 delta_time = (curr_time - (u32)pnetwork->last_scanned) / HZ;
117 if (delta_time < SCANQUEUE_LIFETIME)
118 return;
119 spin_lock_irqsave(&free_queue->lock, irqL);
120 list_del_init(&pnetwork->list);
121 list_add_tail(&pnetwork->list, &free_queue->queue);
122 pmlmepriv->num_of_scanned--;
123 spin_unlock_irqrestore(&free_queue->lock, irqL);
124 }
125
126 static void _free_network_nolock(struct mlme_priv *pmlmepriv,
127 struct wlan_network *pnetwork)
128 {
129 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
130
131 if (pnetwork == NULL)
132 return;
133 if (pnetwork->fixed == true)
134 return;
135 list_del_init(&pnetwork->list);
136 list_add_tail(&pnetwork->list, &free_queue->queue);
137 pmlmepriv->num_of_scanned--;
138 }
139
140
141 /*
142 return the wlan_network with the matching addr
143 Shall be called under atomic context...
144 to avoid possible racing condition...
145 */
146 static struct wlan_network *_r8712_find_network(struct __queue *scanned_queue,
147 u8 *addr)
148 {
149 unsigned long irqL;
150 struct list_head *phead, *plist;
151 struct wlan_network *pnetwork = NULL;
152
153 if (is_zero_ether_addr(addr))
154 return NULL;
155 spin_lock_irqsave(&scanned_queue->lock, irqL);
156 phead = &scanned_queue->queue;
157 plist = phead->next;
158 while (plist != phead) {
159 pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);
160 plist = plist->next;
161 if (!memcmp(addr, pnetwork->network.MacAddress, ETH_ALEN))
162 break;
163 }
164 spin_unlock_irqrestore(&scanned_queue->lock, irqL);
165 return pnetwork;
166 }
167
168 static void _free_network_queue(struct _adapter *padapter)
169 {
170 unsigned long irqL;
171 struct list_head *phead, *plist;
172 struct wlan_network *pnetwork;
173 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
174 struct __queue *scanned_queue = &pmlmepriv->scanned_queue;
175
176 spin_lock_irqsave(&scanned_queue->lock, irqL);
177 phead = &scanned_queue->queue;
178 plist = phead->next;
179 while (end_of_queue_search(phead, plist) == false) {
180 pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);
181 plist = plist->next;
182 _free_network(pmlmepriv, pnetwork);
183 }
184 spin_unlock_irqrestore(&scanned_queue->lock, irqL);
185 }
186
187 sint r8712_if_up(struct _adapter *padapter)
188 {
189 sint res;
190
191 if (padapter->bDriverStopped || padapter->bSurpriseRemoved ||
192 (check_fwstate(&padapter->mlmepriv, _FW_LINKED) == false)) {
193 res = false;
194 } else
195 res = true;
196 return res;
197 }
198
199 void r8712_generate_random_ibss(u8 *pibss)
200 {
201 u32 curtime = jiffies;
202
203 pibss[0] = 0x02; /*in ad-hoc mode bit1 must set to 1 */
204 pibss[1] = 0x11;
205 pibss[2] = 0x87;
206 pibss[3] = (u8)(curtime & 0xff);
207 pibss[4] = (u8)((curtime>>8) & 0xff);
208 pibss[5] = (u8)((curtime>>16) & 0xff);
209 }
210
211 uint r8712_get_wlan_bssid_ex_sz(struct wlan_bssid_ex *bss)
212 {
213 return sizeof(*bss) + bss->IELength - MAX_IE_SZ;
214 }
215
216 u8 *r8712_get_capability_from_ie(u8 *ie)
217 {
218 return ie + 8 + 2;
219 }
220
221 int r8712_init_mlme_priv(struct _adapter *padapter)
222 {
223 return _init_mlme_priv(padapter);
224 }
225
226 void r8712_free_mlme_priv(struct mlme_priv *pmlmepriv)
227 {
228 kfree(pmlmepriv->free_bss_buf);
229 }
230
231 static struct wlan_network *alloc_network(struct mlme_priv *pmlmepriv)
232 {
233 return _r8712_alloc_network(pmlmepriv);
234 }
235
236 static void free_network_nolock(struct mlme_priv *pmlmepriv,
237 struct wlan_network *pnetwork)
238 {
239 _free_network_nolock(pmlmepriv, pnetwork);
240 }
241
242 void r8712_free_network_queue(struct _adapter *dev)
243 {
244 _free_network_queue(dev);
245 }
246
247 /*
248 return the wlan_network with the matching addr
249
250 Shall be called under atomic context...
251 to avoid possible racing condition...
252 */
253 static struct wlan_network *r8712_find_network(struct __queue *scanned_queue,
254 u8 *addr)
255 {
256 struct wlan_network *pnetwork = _r8712_find_network(scanned_queue,
257 addr);
258
259 return pnetwork;
260 }
261
262 int r8712_is_same_ibss(struct _adapter *adapter, struct wlan_network *pnetwork)
263 {
264 int ret = true;
265 struct security_priv *psecuritypriv = &adapter->securitypriv;
266
267 if ((psecuritypriv->PrivacyAlgrthm != _NO_PRIVACY_) &&
268 (pnetwork->network.Privacy == 0))
269 ret = false;
270 else if ((psecuritypriv->PrivacyAlgrthm == _NO_PRIVACY_) &&
271 (pnetwork->network.Privacy == 1))
272 ret = false;
273 else
274 ret = true;
275 return ret;
276
277 }
278
279 static int is_same_network(struct wlan_bssid_ex *src,
280 struct wlan_bssid_ex *dst)
281 {
282 u16 s_cap, d_cap;
283
284 memcpy((u8 *)&s_cap, r8712_get_capability_from_ie(src->IEs), 2);
285 memcpy((u8 *)&d_cap, r8712_get_capability_from_ie(dst->IEs), 2);
286 return (src->Ssid.SsidLength == dst->Ssid.SsidLength) &&
287 (src->Configuration.DSConfig ==
288 dst->Configuration.DSConfig) &&
289 ((!memcmp(src->MacAddress, dst->MacAddress,
290 ETH_ALEN))) &&
291 ((!memcmp(src->Ssid.Ssid,
292 dst->Ssid.Ssid,
293 src->Ssid.SsidLength))) &&
294 ((s_cap & WLAN_CAPABILITY_IBSS) ==
295 (d_cap & WLAN_CAPABILITY_IBSS)) &&
296 ((s_cap & WLAN_CAPABILITY_BSS) ==
297 (d_cap & WLAN_CAPABILITY_BSS));
298
299 }
300
301 struct wlan_network *r8712_get_oldest_wlan_network(
302 struct __queue *scanned_queue)
303 {
304 struct list_head *plist, *phead;
305 struct wlan_network *pwlan = NULL;
306 struct wlan_network *oldest = NULL;
307
308 phead = &scanned_queue->queue;
309 plist = phead->next;
310 while (1) {
311 if (end_of_queue_search(phead, plist) == true)
312 break;
313 pwlan = LIST_CONTAINOR(plist, struct wlan_network, list);
314 if (pwlan->fixed != true) {
315 if (oldest == NULL ||
316 time_after((unsigned long)oldest->last_scanned,
317 (unsigned long)pwlan->last_scanned))
318 oldest = pwlan;
319 }
320 plist = plist->next;
321 }
322 return oldest;
323 }
324
325 static void update_network(struct wlan_bssid_ex *dst,
326 struct wlan_bssid_ex *src,
327 struct _adapter *padapter)
328 {
329 u32 last_evm = 0, tmpVal;
330
331 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) &&
332 is_same_network(&(padapter->mlmepriv.cur_network.network), src)) {
333 if (padapter->recvpriv.signal_qual_data.total_num++ >=
334 PHY_LINKQUALITY_SLID_WIN_MAX) {
335 padapter->recvpriv.signal_qual_data.total_num =
336 PHY_LINKQUALITY_SLID_WIN_MAX;
337 last_evm = padapter->recvpriv.signal_qual_data.
338 elements[padapter->recvpriv.
339 signal_qual_data.index];
340 padapter->recvpriv.signal_qual_data.total_val -=
341 last_evm;
342 }
343 padapter->recvpriv.signal_qual_data.total_val += src->Rssi;
344
345 padapter->recvpriv.signal_qual_data.
346 elements[padapter->recvpriv.signal_qual_data.
347 index++] = src->Rssi;
348 if (padapter->recvpriv.signal_qual_data.index >=
349 PHY_LINKQUALITY_SLID_WIN_MAX)
350 padapter->recvpriv.signal_qual_data.index = 0;
351 /* <1> Showed on UI for user, in percentage. */
352 tmpVal = padapter->recvpriv.signal_qual_data.total_val /
353 padapter->recvpriv.signal_qual_data.total_num;
354 padapter->recvpriv.signal = (u8)tmpVal;
355
356 src->Rssi = padapter->recvpriv.signal;
357 } else
358 src->Rssi = (src->Rssi + dst->Rssi) / 2;
359 memcpy((u8 *)dst, (u8 *)src, r8712_get_wlan_bssid_ex_sz(src));
360 }
361
362 static void update_current_network(struct _adapter *adapter,
363 struct wlan_bssid_ex *pnetwork)
364 {
365 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
366
367 if (is_same_network(&(pmlmepriv->cur_network.network), pnetwork)) {
368 update_network(&(pmlmepriv->cur_network.network),
369 pnetwork, adapter);
370 r8712_update_protection(adapter,
371 (pmlmepriv->cur_network.network.IEs) +
372 sizeof(struct NDIS_802_11_FIXED_IEs),
373 pmlmepriv->cur_network.network.IELength);
374 }
375 }
376
377 /*
378 Caller must hold pmlmepriv->lock first.
379 */
380 static void update_scanned_network(struct _adapter *adapter,
381 struct wlan_bssid_ex *target)
382 {
383 struct list_head *plist, *phead;
384
385 u32 bssid_ex_sz;
386 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
387 struct __queue *queue = &pmlmepriv->scanned_queue;
388 struct wlan_network *pnetwork = NULL;
389 struct wlan_network *oldest = NULL;
390
391 phead = &queue->queue;
392 plist = phead->next;
393
394 while (1) {
395 if (end_of_queue_search(phead, plist) == true)
396 break;
397
398 pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);
399 if (is_same_network(&pnetwork->network, target))
400 break;
401 if ((oldest == ((struct wlan_network *)0)) ||
402 time_after((unsigned long)oldest->last_scanned,
403 (unsigned long)pnetwork->last_scanned))
404 oldest = pnetwork;
405
406 plist = plist->next;
407 }
408
409
410 /* If we didn't find a match, then get a new network slot to initialize
411 * with this beacon's information */
412 if (end_of_queue_search(phead, plist) == true) {
413 if (list_empty(&pmlmepriv->free_bss_pool.queue)) {
414 /* If there are no more slots, expire the oldest */
415 pnetwork = oldest;
416 target->Rssi = (pnetwork->network.Rssi +
417 target->Rssi) / 2;
418 memcpy(&pnetwork->network, target,
419 r8712_get_wlan_bssid_ex_sz(target));
420 pnetwork->last_scanned = jiffies;
421 } else {
422 /* Otherwise just pull from the free list */
423 /* update scan_time */
424 pnetwork = alloc_network(pmlmepriv);
425 if (pnetwork == NULL)
426 return;
427 bssid_ex_sz = r8712_get_wlan_bssid_ex_sz(target);
428 target->Length = bssid_ex_sz;
429 memcpy(&pnetwork->network, target, bssid_ex_sz);
430 list_add_tail(&pnetwork->list, &queue->queue);
431 }
432 } else {
433 /* we have an entry and we are going to update it. But
434 * this entry may be already expired. In this case we
435 * do the same as we found a new net and call the new_net
436 * handler
437 */
438 update_network(&pnetwork->network, target, adapter);
439 pnetwork->last_scanned = jiffies;
440 }
441 }
442
443 static void rtl8711_add_network(struct _adapter *adapter,
444 struct wlan_bssid_ex *pnetwork)
445 {
446 unsigned long irqL;
447 struct mlme_priv *pmlmepriv = &(((struct _adapter *)adapter)->mlmepriv);
448 struct __queue *queue = &pmlmepriv->scanned_queue;
449
450 spin_lock_irqsave(&queue->lock, irqL);
451 update_current_network(adapter, pnetwork);
452 update_scanned_network(adapter, pnetwork);
453 spin_unlock_irqrestore(&queue->lock, irqL);
454 }
455
456 /*select the desired network based on the capability of the (i)bss.
457 * check items: (1) security
458 * (2) network_type
459 * (3) WMM
460 * (4) HT
461 * (5) others
462 */
463 static int is_desired_network(struct _adapter *adapter,
464 struct wlan_network *pnetwork)
465 {
466 u8 wps_ie[512];
467 uint wps_ielen;
468 int bselected = true;
469 struct security_priv *psecuritypriv = &adapter->securitypriv;
470
471 if (psecuritypriv->wps_phase == true) {
472 if (r8712_get_wps_ie(pnetwork->network.IEs,
473 pnetwork->network.IELength, wps_ie,
474 &wps_ielen) == true)
475 return true;
476 else
477 return false;
478 }
479 if ((psecuritypriv->PrivacyAlgrthm != _NO_PRIVACY_) &&
480 (pnetwork->network.Privacy == 0))
481 bselected = false;
482 if (check_fwstate(&adapter->mlmepriv, WIFI_ADHOC_STATE) == true) {
483 if (pnetwork->network.InfrastructureMode !=
484 adapter->mlmepriv.cur_network.network.
485 InfrastructureMode)
486 bselected = false;
487 }
488 return bselected;
489 }
490
491 /* TODO: Perry : For Power Management */
492 void r8712_atimdone_event_callback(struct _adapter *adapter, u8 *pbuf)
493 {
494 }
495
496 void r8712_survey_event_callback(struct _adapter *adapter, u8 *pbuf)
497 {
498 unsigned long flags;
499 u32 len;
500 struct wlan_bssid_ex *pnetwork;
501 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
502
503 pnetwork = (struct wlan_bssid_ex *)pbuf;
504 #ifdef __BIG_ENDIAN
505 /* endian_convert */
506 pnetwork->Length = le32_to_cpu(pnetwork->Length);
507 pnetwork->Ssid.SsidLength = le32_to_cpu(pnetwork->Ssid.SsidLength);
508 pnetwork->Privacy = le32_to_cpu(pnetwork->Privacy);
509 pnetwork->Rssi = le32_to_cpu(pnetwork->Rssi);
510 pnetwork->NetworkTypeInUse = le32_to_cpu(pnetwork->NetworkTypeInUse);
511 pnetwork->Configuration.ATIMWindow =
512 le32_to_cpu(pnetwork->Configuration.ATIMWindow);
513 pnetwork->Configuration.BeaconPeriod =
514 le32_to_cpu(pnetwork->Configuration.BeaconPeriod);
515 pnetwork->Configuration.DSConfig =
516 le32_to_cpu(pnetwork->Configuration.DSConfig);
517 pnetwork->Configuration.FHConfig.DwellTime =
518 le32_to_cpu(pnetwork->Configuration.FHConfig.DwellTime);
519 pnetwork->Configuration.FHConfig.HopPattern =
520 le32_to_cpu(pnetwork->Configuration.FHConfig.HopPattern);
521 pnetwork->Configuration.FHConfig.HopSet =
522 le32_to_cpu(pnetwork->Configuration.FHConfig.HopSet);
523 pnetwork->Configuration.FHConfig.Length =
524 le32_to_cpu(pnetwork->Configuration.FHConfig.Length);
525 pnetwork->Configuration.Length =
526 le32_to_cpu(pnetwork->Configuration.Length);
527 pnetwork->InfrastructureMode =
528 le32_to_cpu(pnetwork->InfrastructureMode);
529 pnetwork->IELength = le32_to_cpu(pnetwork->IELength);
530 #endif
531 len = r8712_get_wlan_bssid_ex_sz(pnetwork);
532 if (len > sizeof(struct wlan_bssid_ex))
533 return;
534 spin_lock_irqsave(&pmlmepriv->lock2, flags);
535 /* update IBSS_network 's timestamp */
536 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true) {
537 if (!memcmp(&(pmlmepriv->cur_network.network.MacAddress),
538 pnetwork->MacAddress, ETH_ALEN)) {
539 struct wlan_network *ibss_wlan = NULL;
540
541 memcpy(pmlmepriv->cur_network.network.IEs,
542 pnetwork->IEs, 8);
543 ibss_wlan = r8712_find_network(
544 &pmlmepriv->scanned_queue,
545 pnetwork->MacAddress);
546 if (ibss_wlan) {
547 memcpy(ibss_wlan->network.IEs,
548 pnetwork->IEs, 8);
549 goto exit;
550 }
551 }
552 }
553 /* lock pmlmepriv->lock when you accessing network_q */
554 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING) == false) {
555 if (pnetwork->Ssid.Ssid[0] != 0)
556 rtl8711_add_network(adapter, pnetwork);
557 else {
558 pnetwork->Ssid.SsidLength = 8;
559 memcpy(pnetwork->Ssid.Ssid, "<hidden>", 8);
560 rtl8711_add_network(adapter, pnetwork);
561 }
562 }
563 exit:
564 spin_unlock_irqrestore(&pmlmepriv->lock2, flags);
565 }
566
567 void r8712_surveydone_event_callback(struct _adapter *adapter, u8 *pbuf)
568 {
569 unsigned long irqL;
570 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
571
572 spin_lock_irqsave(&pmlmepriv->lock, irqL);
573
574 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY) == true) {
575 del_timer(&pmlmepriv->scan_to_timer);
576
577 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
578 }
579
580 if (pmlmepriv->to_join == true) {
581 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) {
582 if (check_fwstate(pmlmepriv, _FW_LINKED) == false) {
583 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
584
585 if (r8712_select_and_join_from_scan(pmlmepriv)
586 == _SUCCESS)
587 mod_timer(&pmlmepriv->assoc_timer, jiffies +
588 msecs_to_jiffies(MAX_JOIN_TIMEOUT));
589 else {
590 struct wlan_bssid_ex *pdev_network =
591 &(adapter->registrypriv.dev_network);
592 u8 *pibss =
593 adapter->registrypriv.
594 dev_network.MacAddress;
595 pmlmepriv->fw_state ^= _FW_UNDER_SURVEY;
596 memcpy(&pdev_network->Ssid,
597 &pmlmepriv->assoc_ssid,
598 sizeof(struct
599 ndis_802_11_ssid));
600 r8712_update_registrypriv_dev_network
601 (adapter);
602 r8712_generate_random_ibss(pibss);
603 pmlmepriv->fw_state =
604 WIFI_ADHOC_MASTER_STATE;
605 pmlmepriv->to_join = false;
606 }
607 }
608 } else {
609 pmlmepriv->to_join = false;
610 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
611 if (r8712_select_and_join_from_scan(pmlmepriv) ==
612 _SUCCESS)
613 mod_timer(&pmlmepriv->assoc_timer, jiffies +
614 msecs_to_jiffies(MAX_JOIN_TIMEOUT));
615 else
616 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
617 }
618 }
619 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
620 }
621
622 /*
623 *r8712_free_assoc_resources: the caller has to lock pmlmepriv->lock
624 */
625 void r8712_free_assoc_resources(struct _adapter *adapter)
626 {
627 unsigned long irqL;
628 struct wlan_network *pwlan = NULL;
629 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
630 struct sta_priv *pstapriv = &adapter->stapriv;
631 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
632
633 pwlan = r8712_find_network(&pmlmepriv->scanned_queue,
634 tgt_network->network.MacAddress);
635
636 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE|WIFI_AP_STATE)) {
637 struct sta_info *psta;
638
639 psta = r8712_get_stainfo(&adapter->stapriv,
640 tgt_network->network.MacAddress);
641
642 spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
643 r8712_free_stainfo(adapter, psta);
644 spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
645 }
646
647 if (check_fwstate(pmlmepriv,
648 WIFI_ADHOC_STATE|WIFI_ADHOC_MASTER_STATE|WIFI_AP_STATE))
649 r8712_free_all_stainfo(adapter);
650 if (pwlan)
651 pwlan->fixed = false;
652
653 if (((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) &&
654 (adapter->stapriv.asoc_sta_count == 1)))
655 free_network_nolock(pmlmepriv, pwlan);
656 }
657
658 /*
659 *r8712_indicate_connect: the caller has to lock pmlmepriv->lock
660 */
661 void r8712_indicate_connect(struct _adapter *padapter)
662 {
663 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
664
665 pmlmepriv->to_join = false;
666 set_fwstate(pmlmepriv, _FW_LINKED);
667 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_LINK);
668 r8712_os_indicate_connect(padapter);
669 if (padapter->registrypriv.power_mgnt > PS_MODE_ACTIVE)
670 mod_timer(&pmlmepriv->dhcp_timer,
671 jiffies + msecs_to_jiffies(60000));
672 }
673
674
675 /*
676 *r8712_ind_disconnect: the caller has to lock pmlmepriv->lock
677 */
678 void r8712_ind_disconnect(struct _adapter *padapter)
679 {
680 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
681
682 if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
683 _clr_fwstate_(pmlmepriv, _FW_LINKED);
684 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_NO_LINK);
685 r8712_os_indicate_disconnect(padapter);
686 }
687 if (padapter->pwrctrlpriv.pwr_mode !=
688 padapter->registrypriv.power_mgnt) {
689 del_timer(&pmlmepriv->dhcp_timer);
690 r8712_set_ps_mode(padapter, padapter->registrypriv.power_mgnt,
691 padapter->registrypriv.smart_ps);
692 }
693 }
694
695 /*Notes:
696 *pnetwork : returns from r8712_joinbss_event_callback
697 *ptarget_wlan: found from scanned_queue
698 *if join_res > 0, for (fw_state==WIFI_STATION_STATE), we check if
699 * "ptarget_sta" & "ptarget_wlan" exist.
700 *if join_res > 0, for (fw_state==WIFI_ADHOC_STATE), we only check
701 * if "ptarget_wlan" exist.
702 *if join_res > 0, update "cur_network->network" from
703 * "pnetwork->network" if (ptarget_wlan !=NULL).
704 */
705 void r8712_joinbss_event_callback(struct _adapter *adapter, u8 *pbuf)
706 {
707 unsigned long irqL = 0, irqL2;
708 struct sta_info *ptarget_sta = NULL, *pcur_sta = NULL;
709 struct sta_priv *pstapriv = &adapter->stapriv;
710 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
711 struct wlan_network *cur_network = &pmlmepriv->cur_network;
712 struct wlan_network *pcur_wlan = NULL, *ptarget_wlan = NULL;
713 unsigned int the_same_macaddr = false;
714 struct wlan_network *pnetwork;
715
716 if (sizeof(struct list_head) == 4 * sizeof(u32)) {
717 pnetwork = kmalloc(sizeof(struct wlan_network), GFP_ATOMIC);
718 if (!pnetwork)
719 return;
720 memcpy((u8 *)pnetwork+16, (u8 *)pbuf + 8,
721 sizeof(struct wlan_network) - 16);
722 } else
723 pnetwork = (struct wlan_network *)pbuf;
724
725 #ifdef __BIG_ENDIAN
726 /* endian_convert */
727 pnetwork->join_res = le32_to_cpu(pnetwork->join_res);
728 pnetwork->network_type = le32_to_cpu(pnetwork->network_type);
729 pnetwork->network.Length = le32_to_cpu(pnetwork->network.Length);
730 pnetwork->network.Ssid.SsidLength =
731 le32_to_cpu(pnetwork->network.Ssid.SsidLength);
732 pnetwork->network.Privacy = le32_to_cpu(pnetwork->network.Privacy);
733 pnetwork->network.Rssi = le32_to_cpu(pnetwork->network.Rssi);
734 pnetwork->network.NetworkTypeInUse =
735 le32_to_cpu(pnetwork->network.NetworkTypeInUse);
736 pnetwork->network.Configuration.ATIMWindow =
737 le32_to_cpu(pnetwork->network.Configuration.ATIMWindow);
738 pnetwork->network.Configuration.BeaconPeriod =
739 le32_to_cpu(pnetwork->network.Configuration.BeaconPeriod);
740 pnetwork->network.Configuration.DSConfig =
741 le32_to_cpu(pnetwork->network.Configuration.DSConfig);
742 pnetwork->network.Configuration.FHConfig.DwellTime =
743 le32_to_cpu(pnetwork->network.Configuration.FHConfig.
744 DwellTime);
745 pnetwork->network.Configuration.FHConfig.HopPattern =
746 le32_to_cpu(pnetwork->network.Configuration.
747 FHConfig.HopPattern);
748 pnetwork->network.Configuration.FHConfig.HopSet =
749 le32_to_cpu(pnetwork->network.Configuration.FHConfig.HopSet);
750 pnetwork->network.Configuration.FHConfig.Length =
751 le32_to_cpu(pnetwork->network.Configuration.FHConfig.Length);
752 pnetwork->network.Configuration.Length =
753 le32_to_cpu(pnetwork->network.Configuration.Length);
754 pnetwork->network.InfrastructureMode =
755 le32_to_cpu(pnetwork->network.InfrastructureMode);
756 pnetwork->network.IELength = le32_to_cpu(pnetwork->network.IELength);
757 #endif
758
759 the_same_macaddr = !memcmp(pnetwork->network.MacAddress,
760 cur_network->network.MacAddress, ETH_ALEN);
761 pnetwork->network.Length =
762 r8712_get_wlan_bssid_ex_sz(&pnetwork->network);
763 spin_lock_irqsave(&pmlmepriv->lock, irqL);
764 if (pnetwork->network.Length > sizeof(struct wlan_bssid_ex))
765 goto ignore_joinbss_callback;
766 if (pnetwork->join_res > 0) {
767 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING) == true) {
768 /*s1. find ptarget_wlan*/
769 if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
770 if (the_same_macaddr == true)
771 ptarget_wlan =
772 r8712_find_network(&pmlmepriv->
773 scanned_queue,
774 cur_network->network.MacAddress);
775 else {
776 pcur_wlan =
777 r8712_find_network(&pmlmepriv->
778 scanned_queue,
779 cur_network->network.MacAddress);
780 pcur_wlan->fixed = false;
781
782 pcur_sta = r8712_get_stainfo(pstapriv,
783 cur_network->network.MacAddress);
784 spin_lock_irqsave(&pstapriv->
785 sta_hash_lock, irqL2);
786 r8712_free_stainfo(adapter, pcur_sta);
787 spin_unlock_irqrestore(&(pstapriv->
788 sta_hash_lock), irqL2);
789
790 ptarget_wlan =
791 r8712_find_network(&pmlmepriv->
792 scanned_queue,
793 pnetwork->network.
794 MacAddress);
795 if (ptarget_wlan)
796 ptarget_wlan->fixed = true;
797 }
798 } else {
799 ptarget_wlan = r8712_find_network(&pmlmepriv->
800 scanned_queue,
801 pnetwork->network.MacAddress);
802 if (ptarget_wlan)
803 ptarget_wlan->fixed = true;
804 }
805
806 if (ptarget_wlan == NULL) {
807 if (check_fwstate(pmlmepriv,
808 _FW_UNDER_LINKING))
809 pmlmepriv->fw_state ^=
810 _FW_UNDER_LINKING;
811 goto ignore_joinbss_callback;
812 }
813
814 /*s2. find ptarget_sta & update ptarget_sta*/
815 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
816 if (the_same_macaddr == true) {
817 ptarget_sta =
818 r8712_get_stainfo(pstapriv,
819 pnetwork->network.MacAddress);
820 if (ptarget_sta == NULL)
821 ptarget_sta =
822 r8712_alloc_stainfo(pstapriv,
823 pnetwork->network.MacAddress);
824 } else
825 ptarget_sta =
826 r8712_alloc_stainfo(pstapriv,
827 pnetwork->network.MacAddress);
828 if (ptarget_sta) /*update ptarget_sta*/ {
829 ptarget_sta->aid = pnetwork->join_res;
830 ptarget_sta->qos_option = 1;
831 ptarget_sta->mac_id = 5;
832 if (adapter->securitypriv.
833 AuthAlgrthm == 2) {
834 adapter->securitypriv.
835 binstallGrpkey =
836 false;
837 adapter->securitypriv.
838 busetkipkey =
839 false;
840 adapter->securitypriv.
841 bgrpkey_handshake =
842 false;
843 ptarget_sta->ieee8021x_blocked
844 = true;
845 ptarget_sta->XPrivacy =
846 adapter->securitypriv.
847 PrivacyAlgrthm;
848 memset((u8 *)&ptarget_sta->
849 x_UncstKey,
850 0,
851 sizeof(union Keytype));
852 memset((u8 *)&ptarget_sta->
853 tkiprxmickey,
854 0,
855 sizeof(union Keytype));
856 memset((u8 *)&ptarget_sta->
857 tkiptxmickey,
858 0,
859 sizeof(union Keytype));
860 memset((u8 *)&ptarget_sta->
861 txpn, 0,
862 sizeof(union pn48));
863 memset((u8 *)&ptarget_sta->
864 rxpn, 0,
865 sizeof(union pn48));
866 }
867 } else {
868 if (check_fwstate(pmlmepriv,
869 _FW_UNDER_LINKING))
870 pmlmepriv->fw_state ^=
871 _FW_UNDER_LINKING;
872 goto ignore_joinbss_callback;
873 }
874 }
875
876 /*s3. update cur_network & indicate connect*/
877 memcpy(&cur_network->network, &pnetwork->network,
878 pnetwork->network.Length);
879 cur_network->aid = pnetwork->join_res;
880 /*update fw_state will clr _FW_UNDER_LINKING*/
881 switch (pnetwork->network.InfrastructureMode) {
882 case Ndis802_11Infrastructure:
883 pmlmepriv->fw_state = WIFI_STATION_STATE;
884 break;
885 case Ndis802_11IBSS:
886 pmlmepriv->fw_state = WIFI_ADHOC_STATE;
887 break;
888 default:
889 pmlmepriv->fw_state = WIFI_NULL_STATE;
890 break;
891 }
892 r8712_update_protection(adapter,
893 (cur_network->network.IEs) +
894 sizeof(struct NDIS_802_11_FIXED_IEs),
895 (cur_network->network.IELength));
896 /*TODO: update HT_Capability*/
897 update_ht_cap(adapter, cur_network->network.IEs,
898 cur_network->network.IELength);
899 /*indicate connect*/
900 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)
901 == true)
902 r8712_indicate_connect(adapter);
903 del_timer(&pmlmepriv->assoc_timer);
904 } else
905 goto ignore_joinbss_callback;
906 } else {
907 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING) == true) {
908 mod_timer(&pmlmepriv->assoc_timer,
909 jiffies + msecs_to_jiffies(1));
910 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
911 }
912 }
913 ignore_joinbss_callback:
914 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
915 if (sizeof(struct list_head) == 4 * sizeof(u32))
916 kfree(pnetwork);
917 }
918
919 void r8712_stassoc_event_callback(struct _adapter *adapter, u8 *pbuf)
920 {
921 unsigned long irqL;
922 struct sta_info *psta;
923 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
924 struct stassoc_event *pstassoc = (struct stassoc_event *)pbuf;
925
926 /* to do: */
927 if (r8712_access_ctrl(&adapter->acl_list, pstassoc->macaddr) == false)
928 return;
929 psta = r8712_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
930 if (psta != NULL) {
931 /*the sta have been in sta_info_queue => do nothing
932 *(between drv has received this event before and
933 * fw have not yet to set key to CAM_ENTRY) */
934 return;
935 }
936
937 psta = r8712_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
938 if (psta == NULL)
939 return;
940 /* to do : init sta_info variable */
941 psta->qos_option = 0;
942 psta->mac_id = le32_to_cpu((uint)pstassoc->cam_id);
943 /* psta->aid = (uint)pstassoc->cam_id; */
944
945 if (adapter->securitypriv.AuthAlgrthm == 2)
946 psta->XPrivacy = adapter->securitypriv.PrivacyAlgrthm;
947 psta->ieee8021x_blocked = false;
948 spin_lock_irqsave(&pmlmepriv->lock, irqL);
949 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true) ||
950 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true)) {
951 if (adapter->stapriv.asoc_sta_count == 2) {
952 /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
953 r8712_indicate_connect(adapter);
954 }
955 }
956 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
957 }
958
959 void r8712_stadel_event_callback(struct _adapter *adapter, u8 *pbuf)
960 {
961 unsigned long irqL, irqL2;
962 struct sta_info *psta;
963 struct wlan_network *pwlan = NULL;
964 struct wlan_bssid_ex *pdev_network = NULL;
965 u8 *pibss = NULL;
966 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
967 struct stadel_event *pstadel = (struct stadel_event *)pbuf;
968 struct sta_priv *pstapriv = &adapter->stapriv;
969 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
970
971 spin_lock_irqsave(&pmlmepriv->lock, irqL2);
972 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
973 r8712_ind_disconnect(adapter);
974 r8712_free_assoc_resources(adapter);
975 }
976 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE |
977 WIFI_ADHOC_STATE)) {
978 psta = r8712_get_stainfo(&adapter->stapriv, pstadel->macaddr);
979 spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
980 r8712_free_stainfo(adapter, psta);
981 spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
982 if (adapter->stapriv.asoc_sta_count == 1) {
983 /*a sta + bc/mc_stainfo (not Ibss_stainfo) */
984 pwlan = r8712_find_network(&pmlmepriv->scanned_queue,
985 tgt_network->network.MacAddress);
986 if (pwlan) {
987 pwlan->fixed = false;
988 free_network_nolock(pmlmepriv, pwlan);
989 }
990 /*re-create ibss*/
991 pdev_network = &(adapter->registrypriv.dev_network);
992 pibss = adapter->registrypriv.dev_network.MacAddress;
993 memcpy(pdev_network, &tgt_network->network,
994 r8712_get_wlan_bssid_ex_sz(&tgt_network->
995 network));
996 memcpy(&pdev_network->Ssid,
997 &pmlmepriv->assoc_ssid,
998 sizeof(struct ndis_802_11_ssid));
999 r8712_update_registrypriv_dev_network(adapter);
1000 r8712_generate_random_ibss(pibss);
1001 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1002 _clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
1003 set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
1004 }
1005 }
1006 }
1007 spin_unlock_irqrestore(&pmlmepriv->lock, irqL2);
1008 }
1009
1010 void r8712_cpwm_event_callback(struct _adapter *adapter, u8 *pbuf)
1011 {
1012 struct reportpwrstate_parm *preportpwrstate =
1013 (struct reportpwrstate_parm *)pbuf;
1014
1015 preportpwrstate->state |= (u8)(adapter->pwrctrlpriv.cpwm_tog + 0x80);
1016 r8712_cpwm_int_hdl(adapter, preportpwrstate);
1017 }
1018
1019 /* When the Netgear 3500 AP is with WPA2PSK-AES mode, it will send
1020 * the ADDBA req frame with start seq control = 0 to wifi client after
1021 * the WPA handshake and the seqence number of following data packet
1022 * will be 0. In this case, the Rx reorder sequence is not longer than 0
1023 * and the WiFi client will drop the data with seq number 0.
1024 * So, the 8712 firmware has to inform driver with receiving the
1025 * ADDBA-Req frame so that the driver can reset the
1026 * sequence value of Rx reorder control.
1027 */
1028 void r8712_got_addbareq_event_callback(struct _adapter *adapter, u8 *pbuf)
1029 {
1030 struct ADDBA_Req_Report_parm *pAddbareq_pram =
1031 (struct ADDBA_Req_Report_parm *)pbuf;
1032 struct sta_info *psta;
1033 struct sta_priv *pstapriv = &adapter->stapriv;
1034 struct recv_reorder_ctrl *precvreorder_ctrl = NULL;
1035
1036 psta = r8712_get_stainfo(pstapriv, pAddbareq_pram->MacAddress);
1037 if (psta) {
1038 precvreorder_ctrl =
1039 &psta->recvreorder_ctrl[pAddbareq_pram->tid];
1040 /* set the indicate_seq to 0xffff so that the rx reorder
1041 * can store any following data packet.
1042 */
1043 precvreorder_ctrl->indicate_seq = 0xffff;
1044 }
1045 }
1046
1047 void r8712_wpspbc_event_callback(struct _adapter *adapter, u8 *pbuf)
1048 {
1049 if (adapter->securitypriv.wps_hw_pbc_pressed == false)
1050 adapter->securitypriv.wps_hw_pbc_pressed = true;
1051 }
1052
1053 void _r8712_sitesurvey_ctrl_handler(struct _adapter *adapter)
1054 {
1055 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1056 struct sitesurvey_ctrl *psitesurveyctrl = &pmlmepriv->sitesurveyctrl;
1057 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1058 u64 current_tx_pkts;
1059 uint current_rx_pkts;
1060
1061 current_tx_pkts = (adapter->xmitpriv.tx_pkts) -
1062 (psitesurveyctrl->last_tx_pkts);
1063 current_rx_pkts = (adapter->recvpriv.rx_pkts) -
1064 (psitesurveyctrl->last_rx_pkts);
1065 psitesurveyctrl->last_tx_pkts = adapter->xmitpriv.tx_pkts;
1066 psitesurveyctrl->last_rx_pkts = adapter->recvpriv.rx_pkts;
1067 if ((current_tx_pkts > pregistrypriv->busy_thresh) ||
1068 (current_rx_pkts > pregistrypriv->busy_thresh))
1069 psitesurveyctrl->traffic_busy = true;
1070 else
1071 psitesurveyctrl->traffic_busy = false;
1072 }
1073
1074 void _r8712_join_timeout_handler(struct _adapter *adapter)
1075 {
1076 unsigned long irqL;
1077 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1078
1079 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1080 return;
1081 spin_lock_irqsave(&pmlmepriv->lock, irqL);
1082 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1083 pmlmepriv->to_join = false;
1084 if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
1085 r8712_os_indicate_disconnect(adapter);
1086 _clr_fwstate_(pmlmepriv, _FW_LINKED);
1087 }
1088 if (adapter->pwrctrlpriv.pwr_mode != adapter->registrypriv.power_mgnt) {
1089 r8712_set_ps_mode(adapter, adapter->registrypriv.power_mgnt,
1090 adapter->registrypriv.smart_ps);
1091 }
1092 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
1093 }
1094
1095 void r8712_scan_timeout_handler (struct _adapter *adapter)
1096 {
1097 unsigned long irqL;
1098 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1099
1100 spin_lock_irqsave(&pmlmepriv->lock, irqL);
1101 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
1102 pmlmepriv->to_join = false; /* scan fail, so clear to_join flag */
1103 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
1104 }
1105
1106 void _r8712_dhcp_timeout_handler (struct _adapter *adapter)
1107 {
1108 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1109 return;
1110 if (adapter->pwrctrlpriv.pwr_mode != adapter->registrypriv.power_mgnt)
1111 r8712_set_ps_mode(adapter, adapter->registrypriv.power_mgnt,
1112 adapter->registrypriv.smart_ps);
1113 }
1114
1115 void _r8712_wdg_timeout_handler(struct _adapter *adapter)
1116 {
1117 r8712_wdg_wk_cmd(adapter);
1118 }
1119
1120 int r8712_select_and_join_from_scan(struct mlme_priv *pmlmepriv)
1121 {
1122 struct list_head *phead;
1123 unsigned char *dst_ssid, *src_ssid;
1124 struct _adapter *adapter;
1125 struct __queue *queue = NULL;
1126 struct wlan_network *pnetwork = NULL;
1127 struct wlan_network *pnetwork_max_rssi = NULL;
1128
1129 adapter = (struct _adapter *)pmlmepriv->nic_hdl;
1130 queue = &pmlmepriv->scanned_queue;
1131 phead = &queue->queue;
1132 pmlmepriv->pscanned = phead->next;
1133 while (1) {
1134 if (end_of_queue_search(phead, pmlmepriv->pscanned) == true) {
1135 if ((pmlmepriv->assoc_by_rssi == true) &&
1136 (pnetwork_max_rssi != NULL)) {
1137 pnetwork = pnetwork_max_rssi;
1138 goto ask_for_joinbss;
1139 }
1140 return _FAIL;
1141 }
1142 pnetwork = LIST_CONTAINOR(pmlmepriv->pscanned,
1143 struct wlan_network, list);
1144 if (pnetwork == NULL)
1145 return _FAIL;
1146 pmlmepriv->pscanned = pmlmepriv->pscanned->next;
1147 if (pmlmepriv->assoc_by_bssid == true) {
1148 dst_ssid = pnetwork->network.MacAddress;
1149 src_ssid = pmlmepriv->assoc_bssid;
1150 if (!memcmp(dst_ssid, src_ssid, ETH_ALEN)) {
1151 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1152 if (is_same_network(&pmlmepriv->
1153 cur_network.network,
1154 &pnetwork->network)) {
1155 _clr_fwstate_(pmlmepriv,
1156 _FW_UNDER_LINKING);
1157 /*r8712_indicate_connect again*/
1158 r8712_indicate_connect(adapter);
1159 return 2;
1160 }
1161 r8712_disassoc_cmd(adapter);
1162 r8712_ind_disconnect(adapter);
1163 r8712_free_assoc_resources(adapter);
1164 }
1165 goto ask_for_joinbss;
1166 }
1167 } else if (pmlmepriv->assoc_ssid.SsidLength == 0)
1168 goto ask_for_joinbss;
1169 dst_ssid = pnetwork->network.Ssid.Ssid;
1170 src_ssid = pmlmepriv->assoc_ssid.Ssid;
1171 if ((pnetwork->network.Ssid.SsidLength ==
1172 pmlmepriv->assoc_ssid.SsidLength) &&
1173 (!memcmp(dst_ssid, src_ssid,
1174 pmlmepriv->assoc_ssid.SsidLength))) {
1175 if (pmlmepriv->assoc_by_rssi == true) {
1176 /* if the ssid is the same, select the bss
1177 * which has the max rssi*/
1178 if (pnetwork_max_rssi) {
1179 if (pnetwork->network.Rssi >
1180 pnetwork_max_rssi->network.Rssi)
1181 pnetwork_max_rssi = pnetwork;
1182 } else
1183 pnetwork_max_rssi = pnetwork;
1184 } else if (is_desired_network(adapter, pnetwork)) {
1185 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1186 r8712_disassoc_cmd(adapter);
1187 r8712_free_assoc_resources(adapter);
1188 }
1189 goto ask_for_joinbss;
1190 }
1191 }
1192 }
1193 return _FAIL;
1194 ask_for_joinbss:
1195 return r8712_joinbss_cmd(adapter, pnetwork);
1196 }
1197
1198 sint r8712_set_auth(struct _adapter *adapter,
1199 struct security_priv *psecuritypriv)
1200 {
1201 struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
1202 struct cmd_obj *pcmd;
1203 struct setauth_parm *psetauthparm;
1204
1205 pcmd = kmalloc(sizeof(*pcmd), GFP_ATOMIC);
1206 if (pcmd == NULL)
1207 return _FAIL;
1208
1209 psetauthparm = kzalloc(sizeof(*psetauthparm), GFP_ATOMIC);
1210 if (psetauthparm == NULL) {
1211 kfree(pcmd);
1212 return _FAIL;
1213 }
1214 psetauthparm->mode = (u8)psecuritypriv->AuthAlgrthm;
1215 pcmd->cmdcode = _SetAuth_CMD_;
1216 pcmd->parmbuf = (unsigned char *)psetauthparm;
1217 pcmd->cmdsz = sizeof(struct setauth_parm);
1218 pcmd->rsp = NULL;
1219 pcmd->rspsz = 0;
1220 INIT_LIST_HEAD(&pcmd->list);
1221 r8712_enqueue_cmd(pcmdpriv, pcmd);
1222 return _SUCCESS;
1223 }
1224
1225 sint r8712_set_key(struct _adapter *adapter,
1226 struct security_priv *psecuritypriv,
1227 sint keyid)
1228 {
1229 struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
1230 struct cmd_obj *pcmd;
1231 struct setkey_parm *psetkeyparm;
1232 u8 keylen;
1233 sint ret = _SUCCESS;
1234
1235 pcmd = kmalloc(sizeof(*pcmd), GFP_ATOMIC);
1236 if (pcmd == NULL)
1237 return _FAIL;
1238 psetkeyparm = kzalloc(sizeof(*psetkeyparm), GFP_ATOMIC);
1239 if (psetkeyparm == NULL) {
1240 ret = _FAIL;
1241 goto err_free_cmd;
1242 }
1243 if (psecuritypriv->AuthAlgrthm == 2) { /* 802.1X */
1244 psetkeyparm->algorithm =
1245 (u8)psecuritypriv->XGrpPrivacy;
1246 } else { /* WEP */
1247 psetkeyparm->algorithm =
1248 (u8)psecuritypriv->PrivacyAlgrthm;
1249 }
1250 psetkeyparm->keyid = (u8)keyid;
1251
1252 switch (psetkeyparm->algorithm) {
1253 case _WEP40_:
1254 keylen = 5;
1255 memcpy(psetkeyparm->key,
1256 psecuritypriv->DefKey[keyid].skey, keylen);
1257 break;
1258 case _WEP104_:
1259 keylen = 13;
1260 memcpy(psetkeyparm->key,
1261 psecuritypriv->DefKey[keyid].skey, keylen);
1262 break;
1263 case _TKIP_:
1264 if (keyid < 1 || keyid > 2) {
1265 ret = _FAIL;
1266 goto err_free_parm;
1267 }
1268 keylen = 16;
1269 memcpy(psetkeyparm->key,
1270 &psecuritypriv->XGrpKey[keyid - 1], keylen);
1271 psetkeyparm->grpkey = 1;
1272 break;
1273 case _AES_:
1274 if (keyid < 1 || keyid > 2) {
1275 ret = _FAIL;
1276 goto err_free_parm;
1277 }
1278 keylen = 16;
1279 memcpy(psetkeyparm->key,
1280 &psecuritypriv->XGrpKey[keyid - 1], keylen);
1281 psetkeyparm->grpkey = 1;
1282 break;
1283 default:
1284 ret = _FAIL;
1285 goto err_free_parm;
1286 }
1287 pcmd->cmdcode = _SetKey_CMD_;
1288 pcmd->parmbuf = (u8 *)psetkeyparm;
1289 pcmd->cmdsz = (sizeof(struct setkey_parm));
1290 pcmd->rsp = NULL;
1291 pcmd->rspsz = 0;
1292 INIT_LIST_HEAD(&pcmd->list);
1293 r8712_enqueue_cmd(pcmdpriv, pcmd);
1294 return ret;
1295
1296 err_free_parm:
1297 kfree(psetkeyparm);
1298 err_free_cmd:
1299 kfree(pcmd);
1300 return ret;
1301 }
1302
1303 /* adjust IEs for r8712_joinbss_cmd in WMM */
1304 int r8712_restruct_wmm_ie(struct _adapter *adapter, u8 *in_ie, u8 *out_ie,
1305 uint in_len, uint initial_out_len)
1306 {
1307 unsigned int ielength = 0;
1308 unsigned int i, j;
1309
1310 i = 12; /* after the fixed IE */
1311 while (i < in_len) {
1312 ielength = initial_out_len;
1313 if (in_ie[i] == 0xDD && in_ie[i + 2] == 0x00 &&
1314 in_ie[i + 3] == 0x50 && in_ie[i + 4] == 0xF2 &&
1315 in_ie[i + 5] == 0x02 && i + 5 < in_len) {
1316 /*WMM element ID and OUI*/
1317 for (j = i; j < i + 9; j++) {
1318 out_ie[ielength] = in_ie[j];
1319 ielength++;
1320 }
1321 out_ie[initial_out_len + 1] = 0x07;
1322 out_ie[initial_out_len + 6] = 0x00;
1323 out_ie[initial_out_len + 8] = 0x00;
1324 break;
1325 }
1326 i += (in_ie[i + 1] + 2); /* to the next IE element */
1327 }
1328 return ielength;
1329 }
1330
1331 /*
1332 * Ported from 8185: IsInPreAuthKeyList().
1333 *
1334 * Search by BSSID,
1335 * Return Value:
1336 * -1 :if there is no pre-auth key in the table
1337 * >=0 :if there is pre-auth key, and return the entry id
1338 */
1339 static int SecIsInPMKIDList(struct _adapter *Adapter, u8 *bssid)
1340 {
1341 struct security_priv *psecuritypriv = &Adapter->securitypriv;
1342 int i = 0;
1343
1344 do {
1345 if (psecuritypriv->PMKIDList[i].bUsed &&
1346 (!memcmp(psecuritypriv->PMKIDList[i].Bssid,
1347 bssid, ETH_ALEN)))
1348 break;
1349 else
1350 i++;
1351 } while (i < NUM_PMKID_CACHE);
1352
1353 if (i == NUM_PMKID_CACHE) {
1354 i = -1; /* Could not find. */
1355 } else {
1356 ; /* There is one Pre-Authentication Key for the
1357 * specific BSSID. */
1358 }
1359 return i;
1360 }
1361
1362 sint r8712_restruct_sec_ie(struct _adapter *adapter, u8 *in_ie,
1363 u8 *out_ie, uint in_len)
1364 {
1365 u8 authmode = 0, match;
1366 u8 sec_ie[255], uncst_oui[4], bkup_ie[255];
1367 u8 wpa_oui[4] = {0x0, 0x50, 0xf2, 0x01};
1368 uint ielength, cnt, remove_cnt;
1369 int iEntry;
1370 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1371 struct security_priv *psecuritypriv = &adapter->securitypriv;
1372 uint ndisauthmode = psecuritypriv->ndisauthtype;
1373 uint ndissecuritytype = psecuritypriv->ndisencryptstatus;
1374
1375 if ((ndisauthmode == Ndis802_11AuthModeWPA) ||
1376 (ndisauthmode == Ndis802_11AuthModeWPAPSK)) {
1377 authmode = _WPA_IE_ID_;
1378 uncst_oui[0] = 0x0;
1379 uncst_oui[1] = 0x50;
1380 uncst_oui[2] = 0xf2;
1381 }
1382 if ((ndisauthmode == Ndis802_11AuthModeWPA2) ||
1383 (ndisauthmode == Ndis802_11AuthModeWPA2PSK)) {
1384 authmode = _WPA2_IE_ID_;
1385 uncst_oui[0] = 0x0;
1386 uncst_oui[1] = 0x0f;
1387 uncst_oui[2] = 0xac;
1388 }
1389 switch (ndissecuritytype) {
1390 case Ndis802_11Encryption1Enabled:
1391 case Ndis802_11Encryption1KeyAbsent:
1392 uncst_oui[3] = 0x1;
1393 break;
1394 case Ndis802_11Encryption2Enabled:
1395 case Ndis802_11Encryption2KeyAbsent:
1396 uncst_oui[3] = 0x2;
1397 break;
1398 case Ndis802_11Encryption3Enabled:
1399 case Ndis802_11Encryption3KeyAbsent:
1400 uncst_oui[3] = 0x4;
1401 break;
1402 default:
1403 break;
1404 }
1405 /*Search required WPA or WPA2 IE and copy to sec_ie[] */
1406 cnt = 12;
1407 match = false;
1408 while (cnt < in_len) {
1409 if (in_ie[cnt] == authmode) {
1410 if ((authmode == _WPA_IE_ID_) &&
1411 (!memcmp(&in_ie[cnt+2], &wpa_oui[0], 4))) {
1412 memcpy(&sec_ie[0], &in_ie[cnt],
1413 in_ie[cnt + 1] + 2);
1414 match = true;
1415 break;
1416 }
1417 if (authmode == _WPA2_IE_ID_) {
1418 memcpy(&sec_ie[0], &in_ie[cnt],
1419 in_ie[cnt + 1] + 2);
1420 match = true;
1421 break;
1422 }
1423 if (((authmode == _WPA_IE_ID_) &&
1424 (!memcmp(&in_ie[cnt + 2], &wpa_oui[0], 4))) ||
1425 (authmode == _WPA2_IE_ID_))
1426 memcpy(&bkup_ie[0], &in_ie[cnt],
1427 in_ie[cnt + 1] + 2);
1428 }
1429 cnt += in_ie[cnt+1] + 2; /*get next*/
1430 }
1431 /*restruct WPA IE or WPA2 IE in sec_ie[] */
1432 if (match == true) {
1433 if (sec_ie[0] == _WPA_IE_ID_) {
1434 /* parsing SSN IE to select required encryption
1435 * algorithm, and set the bc/mc encryption algorithm */
1436 while (true) {
1437 /*check wpa_oui tag*/
1438 if (memcmp(&sec_ie[2], &wpa_oui[0], 4)) {
1439 match = false;
1440 break;
1441 }
1442 if ((sec_ie[6] != 0x01) || (sec_ie[7] != 0x0)) {
1443 /*IE Ver error*/
1444 match = false;
1445 break;
1446 }
1447 if (!memcmp(&sec_ie[8], &wpa_oui[0], 3)) {
1448 /* get bc/mc encryption type (group
1449 * key type)*/
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 cnt = sec_ie[12];
1489 remove_cnt = (cnt-1) * 4;
1490 sec_ie[12] = 0x01;
1491 memcpy(&sec_ie[14], &uncst_oui[0], 4);
1492 /*remove the other unicast suit*/
1493 memcpy(&sec_ie[18],
1494 &sec_ie[18 + remove_cnt],
1495 sec_ie[1] - 18 + 2 -
1496 remove_cnt);
1497 sec_ie[1] = sec_ie[1] - remove_cnt;
1498 }
1499 break;
1500 }
1501 }
1502 if (authmode == _WPA2_IE_ID_) {
1503 /* parsing RSN IE to select required encryption
1504 * algorithm, and set the bc/mc encryption algorithm */
1505 while (true) {
1506 if ((sec_ie[2] != 0x01) || (sec_ie[3] != 0x0)) {
1507 /*IE Ver error*/
1508 match = false;
1509 break;
1510 }
1511 if (!memcmp(&sec_ie[4], &uncst_oui[0], 3)) {
1512 /*get bc/mc encryption type*/
1513 switch (sec_ie[7]) {
1514 case 0x1: /*WEP_40*/
1515 psecuritypriv->XGrpPrivacy =
1516 _WEP40_;
1517 break;
1518 case 0x2: /*TKIP*/
1519 psecuritypriv->XGrpPrivacy =
1520 _TKIP_;
1521 break;
1522 case 0x4: /*AESWRAP*/
1523 psecuritypriv->XGrpPrivacy =
1524 _AES_;
1525 break;
1526 case 0x5: /*WEP_104*/
1527 psecuritypriv->XGrpPrivacy =
1528 _WEP104_;
1529 break;
1530 default: /*one*/
1531 psecuritypriv->XGrpPrivacy =
1532 _NO_PRIVACY_;
1533 break;
1534 }
1535 } else {
1536 match = false;
1537 break;
1538 }
1539 if (sec_ie[8] == 0x01) {
1540 /*check the unicast encryption type*/
1541 if (memcmp(&sec_ie[10],
1542 &uncst_oui[0], 4)) {
1543 match = false;
1544 break;
1545 } /*else the uncst_oui is match*/
1546 } else { /*mixed mode, unicast_enc_type > 1*/
1547 /*select the uncst_oui and remove the
1548 * other uncst_oui*/
1549 cnt = sec_ie[8];
1550 remove_cnt = (cnt-1)*4;
1551 sec_ie[8] = 0x01;
1552 memcpy(&sec_ie[10], &uncst_oui[0], 4);
1553 /*remove the other unicast suit*/
1554 memcpy(&sec_ie[14],
1555 &sec_ie[14 + remove_cnt],
1556 (sec_ie[1] - 14 + 2 -
1557 remove_cnt));
1558 sec_ie[1] = sec_ie[1]-remove_cnt;
1559 }
1560 break;
1561 }
1562 }
1563 }
1564 if ((authmode == _WPA_IE_ID_) || (authmode == _WPA2_IE_ID_)) {
1565 /*copy fixed ie*/
1566 memcpy(out_ie, in_ie, 12);
1567 ielength = 12;
1568 /*copy RSN or SSN*/
1569 if (match == true) {
1570 memcpy(&out_ie[ielength], &sec_ie[0], sec_ie[1]+2);
1571 ielength += sec_ie[1] + 2;
1572 if (authmode == _WPA2_IE_ID_) {
1573 /*the Pre-Authentication bit should be zero*/
1574 out_ie[ielength - 1] = 0;
1575 out_ie[ielength - 2] = 0;
1576 }
1577 r8712_report_sec_ie(adapter, authmode, sec_ie);
1578 }
1579 } else {
1580 /*copy fixed ie only*/
1581 memcpy(out_ie, in_ie, 12);
1582 ielength = 12;
1583 if (psecuritypriv->wps_phase == true) {
1584 memcpy(out_ie+ielength, psecuritypriv->wps_ie,
1585 psecuritypriv->wps_ie_len);
1586 ielength += psecuritypriv->wps_ie_len;
1587 }
1588 }
1589 iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
1590 if (iEntry < 0)
1591 return ielength;
1592 if (authmode == _WPA2_IE_ID_) {
1593 out_ie[ielength] = 1;
1594 ielength++;
1595 out_ie[ielength] = 0; /*PMKID count = 0x0100*/
1596 ielength++;
1597 memcpy(&out_ie[ielength],
1598 &psecuritypriv->PMKIDList[iEntry].PMKID, 16);
1599 ielength += 16;
1600 out_ie[13] += 18;/*PMKID length = 2+16*/
1601 }
1602 return ielength;
1603 }
1604
1605 void r8712_init_registrypriv_dev_network(struct _adapter *adapter)
1606 {
1607 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1608 struct eeprom_priv *peepriv = &adapter->eeprompriv;
1609 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1610 u8 *myhwaddr = myid(peepriv);
1611
1612 memcpy(pdev_network->MacAddress, myhwaddr, ETH_ALEN);
1613 memcpy(&pdev_network->Ssid, &pregistrypriv->ssid,
1614 sizeof(struct ndis_802_11_ssid));
1615 pdev_network->Configuration.Length =
1616 sizeof(struct NDIS_802_11_CONFIGURATION);
1617 pdev_network->Configuration.BeaconPeriod = 100;
1618 pdev_network->Configuration.FHConfig.Length = 0;
1619 pdev_network->Configuration.FHConfig.HopPattern = 0;
1620 pdev_network->Configuration.FHConfig.HopSet = 0;
1621 pdev_network->Configuration.FHConfig.DwellTime = 0;
1622 }
1623
1624 void r8712_update_registrypriv_dev_network(struct _adapter *adapter)
1625 {
1626 int sz = 0;
1627 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1628 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1629 struct security_priv *psecuritypriv = &adapter->securitypriv;
1630 struct wlan_network *cur_network = &adapter->mlmepriv.cur_network;
1631
1632 pdev_network->Privacy = cpu_to_le32(psecuritypriv->PrivacyAlgrthm
1633 > 0 ? 1 : 0); /* adhoc no 802.1x */
1634 pdev_network->Rssi = 0;
1635 switch (pregistrypriv->wireless_mode) {
1636 case WIRELESS_11B:
1637 pdev_network->NetworkTypeInUse = cpu_to_le32(Ndis802_11DS);
1638 break;
1639 case WIRELESS_11G:
1640 case WIRELESS_11BG:
1641 pdev_network->NetworkTypeInUse = cpu_to_le32(Ndis802_11OFDM24);
1642 break;
1643 case WIRELESS_11A:
1644 pdev_network->NetworkTypeInUse = cpu_to_le32(Ndis802_11OFDM5);
1645 break;
1646 default:
1647 /* TODO */
1648 break;
1649 }
1650 pdev_network->Configuration.DSConfig = cpu_to_le32(
1651 pregistrypriv->channel);
1652 if (cur_network->network.InfrastructureMode == Ndis802_11IBSS)
1653 pdev_network->Configuration.ATIMWindow = cpu_to_le32(3);
1654 pdev_network->InfrastructureMode = cpu_to_le32(
1655 cur_network->network.InfrastructureMode);
1656 /* 1. Supported rates
1657 * 2. IE
1658 */
1659 sz = r8712_generate_ie(pregistrypriv);
1660 pdev_network->IELength = sz;
1661 pdev_network->Length = r8712_get_wlan_bssid_ex_sz(pdev_network);
1662 }
1663
1664 /*the function is at passive_level*/
1665 void r8712_joinbss_reset(struct _adapter *padapter)
1666 {
1667 int i;
1668 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1669 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1670
1671 /* todo: if you want to do something io/reg/hw setting before join_bss,
1672 * please add code here */
1673 phtpriv->ampdu_enable = false;/*reset to disabled*/
1674 for (i = 0; i < 16; i++)
1675 phtpriv->baddbareq_issued[i] = false;/*reset it*/
1676 if (phtpriv->ht_option) {
1677 /* validate usb rx aggregation */
1678 r8712_write8(padapter, 0x102500D9, 48);/*TH = 48 pages, 6k*/
1679 } else {
1680 /* invalidate usb rx aggregation */
1681 /* TH=1 => means that invalidate usb rx aggregation */
1682 r8712_write8(padapter, 0x102500D9, 1);
1683 }
1684 }
1685
1686 /*the function is >= passive_level*/
1687 unsigned int r8712_restructure_ht_ie(struct _adapter *padapter, u8 *in_ie,
1688 u8 *out_ie, uint in_len, uint *pout_len)
1689 {
1690 u32 ielen, out_len;
1691 unsigned char *p;
1692 struct ieee80211_ht_cap ht_capie;
1693 unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
1694 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1695 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
1696 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1697
1698 phtpriv->ht_option = 0;
1699 p = r8712_get_ie(in_ie+12, _HT_CAPABILITY_IE_, &ielen, in_len-12);
1700 if (p && (ielen > 0)) {
1701 if (pqospriv->qos_option == 0) {
1702 out_len = *pout_len;
1703 r8712_set_ie(out_ie+out_len, _VENDOR_SPECIFIC_IE_,
1704 _WMM_IE_Length_, WMM_IE, pout_len);
1705 pqospriv->qos_option = 1;
1706 }
1707 out_len = *pout_len;
1708 memset(&ht_capie, 0, sizeof(struct ieee80211_ht_cap));
1709 ht_capie.cap_info = IEEE80211_HT_CAP_SUP_WIDTH |
1710 IEEE80211_HT_CAP_SGI_20 |
1711 IEEE80211_HT_CAP_SGI_40 |
1712 IEEE80211_HT_CAP_TX_STBC |
1713 IEEE80211_HT_CAP_MAX_AMSDU |
1714 IEEE80211_HT_CAP_DSSSCCK40;
1715 ht_capie.ampdu_params_info = (IEEE80211_HT_CAP_AMPDU_FACTOR &
1716 0x03) | (IEEE80211_HT_CAP_AMPDU_DENSITY & 0x00);
1717 r8712_set_ie(out_ie+out_len, _HT_CAPABILITY_IE_,
1718 sizeof(struct ieee80211_ht_cap),
1719 (unsigned char *)&ht_capie, pout_len);
1720 phtpriv->ht_option = 1;
1721 }
1722 return phtpriv->ht_option;
1723 }
1724
1725 /* the function is > passive_level (in critical_section) */
1726 static void update_ht_cap(struct _adapter *padapter, u8 *pie, uint ie_len)
1727 {
1728 u8 *p, max_ampdu_sz;
1729 int i, len;
1730 struct sta_info *bmc_sta, *psta;
1731 struct ieee80211_ht_cap *pht_capie;
1732 struct recv_reorder_ctrl *preorder_ctrl;
1733 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1734 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1735 struct registry_priv *pregistrypriv = &padapter->registrypriv;
1736 struct wlan_network *pcur_network = &(pmlmepriv->cur_network);
1737
1738 if (!phtpriv->ht_option)
1739 return;
1740 /* maybe needs check if ap supports rx ampdu. */
1741 if ((phtpriv->ampdu_enable == false) &&
1742 (pregistrypriv->ampdu_enable == 1))
1743 phtpriv->ampdu_enable = true;
1744 /*check Max Rx A-MPDU Size*/
1745 len = 0;
1746 p = r8712_get_ie(pie + sizeof(struct NDIS_802_11_FIXED_IEs),
1747 _HT_CAPABILITY_IE_,
1748 &len, ie_len -
1749 sizeof(struct NDIS_802_11_FIXED_IEs));
1750 if (p && len > 0) {
1751 pht_capie = (struct ieee80211_ht_cap *)(p+2);
1752 max_ampdu_sz = (pht_capie->ampdu_params_info &
1753 IEEE80211_HT_CAP_AMPDU_FACTOR);
1754 /* max_ampdu_sz (kbytes); */
1755 max_ampdu_sz = 1 << (max_ampdu_sz+3);
1756 phtpriv->rx_ampdu_maxlen = max_ampdu_sz;
1757 }
1758 /* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info
1759 * if A-MPDU Rx is enabled, resetting rx_ordering_ctrl
1760 * wstart_b(indicate_seq) to default value=0xffff
1761 * todo: check if AP can send A-MPDU packets
1762 */
1763 bmc_sta = r8712_get_bcmc_stainfo(padapter);
1764 if (bmc_sta) {
1765 for (i = 0; i < 16; i++) {
1766 preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
1767 preorder_ctrl->indicate_seq = 0xffff;
1768 preorder_ctrl->wend_b = 0xffff;
1769 }
1770 }
1771 psta = r8712_get_stainfo(&padapter->stapriv,
1772 pcur_network->network.MacAddress);
1773 if (psta) {
1774 for (i = 0; i < 16; i++) {
1775 preorder_ctrl = &psta->recvreorder_ctrl[i];
1776 preorder_ctrl->indicate_seq = 0xffff;
1777 preorder_ctrl->wend_b = 0xffff;
1778 }
1779 }
1780 len = 0;
1781 p = r8712_get_ie(pie + sizeof(struct NDIS_802_11_FIXED_IEs),
1782 _HT_ADD_INFO_IE_, &len,
1783 ie_len-sizeof(struct NDIS_802_11_FIXED_IEs));
1784 }
1785
1786 void r8712_issue_addbareq_cmd(struct _adapter *padapter, int priority)
1787 {
1788 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1789 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1790
1791 if ((phtpriv->ht_option == 1) && (phtpriv->ampdu_enable == true)) {
1792 if (phtpriv->baddbareq_issued[priority] == false) {
1793 r8712_addbareq_cmd(padapter, (u8)priority);
1794 phtpriv->baddbareq_issued[priority] = true;
1795 }
1796 }
1797 }
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