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Merge branch 'for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
[deliverable/linux.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_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
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
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
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 /*
141 return the wlan_network with the matching addr
142 Shall be called under atomic context...
143 to avoid possible racing condition...
144 */
145 static struct wlan_network *_r8712_find_network(struct __queue *scanned_queue,
146 u8 *addr)
147 {
148 unsigned long irqL;
149 struct list_head *phead, *plist;
150 struct wlan_network *pnetwork = NULL;
151
152 if (is_zero_ether_addr(addr))
153 return NULL;
154 spin_lock_irqsave(&scanned_queue->lock, irqL);
155 phead = &scanned_queue->queue;
156 plist = phead->next;
157 while (plist != phead) {
158 pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);
159 plist = plist->next;
160 if (!memcmp(addr, pnetwork->network.MacAddress, ETH_ALEN))
161 break;
162 }
163 spin_unlock_irqrestore(&scanned_queue->lock, irqL);
164 return pnetwork;
165 }
166
167 static void _free_network_queue(struct _adapter *padapter)
168 {
169 unsigned long irqL;
170 struct list_head *phead, *plist;
171 struct wlan_network *pnetwork;
172 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
173 struct __queue *scanned_queue = &pmlmepriv->scanned_queue;
174
175 spin_lock_irqsave(&scanned_queue->lock, irqL);
176 phead = &scanned_queue->queue;
177 plist = phead->next;
178 while (!end_of_queue_search(phead, plist)) {
179 pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);
180 plist = plist->next;
181 _free_network(pmlmepriv, pnetwork);
182 }
183 spin_unlock_irqrestore(&scanned_queue->lock, irqL);
184 }
185
186 sint r8712_if_up(struct _adapter *padapter)
187 {
188 sint res;
189
190 if (padapter->bDriverStopped || padapter->bSurpriseRemoved ||
191 !check_fwstate(&padapter->mlmepriv, _FW_LINKED)) {
192 res = false;
193 } else {
194 res = true;
195 }
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 void r8712_free_network_queue(struct _adapter *dev)
237 {
238 _free_network_queue(dev);
239 }
240
241 /*
242 return the wlan_network with the matching addr
243
244 Shall be called under atomic context...
245 to avoid possible racing condition...
246 */
247 static struct wlan_network *r8712_find_network(struct __queue *scanned_queue,
248 u8 *addr)
249 {
250 struct wlan_network *pnetwork = _r8712_find_network(scanned_queue,
251 addr);
252
253 return pnetwork;
254 }
255
256 int r8712_is_same_ibss(struct _adapter *adapter, struct wlan_network *pnetwork)
257 {
258 int ret = true;
259 struct security_priv *psecuritypriv = &adapter->securitypriv;
260
261 if ((psecuritypriv->PrivacyAlgrthm != _NO_PRIVACY_) &&
262 (pnetwork->network.Privacy == 0))
263 ret = false;
264 else if ((psecuritypriv->PrivacyAlgrthm == _NO_PRIVACY_) &&
265 (pnetwork->network.Privacy == 1))
266 ret = false;
267 else
268 ret = true;
269 return ret;
270
271 }
272
273 static int is_same_network(struct wlan_bssid_ex *src,
274 struct wlan_bssid_ex *dst)
275 {
276 u16 s_cap, d_cap;
277
278 memcpy((u8 *)&s_cap, r8712_get_capability_from_ie(src->IEs), 2);
279 memcpy((u8 *)&d_cap, r8712_get_capability_from_ie(dst->IEs), 2);
280 return (src->Ssid.SsidLength == dst->Ssid.SsidLength) &&
281 (src->Configuration.DSConfig ==
282 dst->Configuration.DSConfig) &&
283 ((!memcmp(src->MacAddress, dst->MacAddress,
284 ETH_ALEN))) &&
285 ((!memcmp(src->Ssid.Ssid,
286 dst->Ssid.Ssid,
287 src->Ssid.SsidLength))) &&
288 ((s_cap & WLAN_CAPABILITY_IBSS) ==
289 (d_cap & WLAN_CAPABILITY_IBSS)) &&
290 ((s_cap & WLAN_CAPABILITY_BSS) ==
291 (d_cap & WLAN_CAPABILITY_BSS));
292
293 }
294
295 struct wlan_network *r8712_get_oldest_wlan_network(
296 struct __queue *scanned_queue)
297 {
298 struct list_head *plist, *phead;
299 struct wlan_network *pwlan = NULL;
300 struct wlan_network *oldest = NULL;
301
302 phead = &scanned_queue->queue;
303 plist = phead->next;
304 while (1) {
305 if (end_of_queue_search(phead, plist) == true)
306 break;
307 pwlan = LIST_CONTAINOR(plist, struct wlan_network, list);
308 if (pwlan->fixed != true) {
309 if (oldest == NULL ||
310 time_after((unsigned long)oldest->last_scanned,
311 (unsigned long)pwlan->last_scanned))
312 oldest = pwlan;
313 }
314 plist = plist->next;
315 }
316 return oldest;
317 }
318
319 static void update_network(struct wlan_bssid_ex *dst,
320 struct wlan_bssid_ex *src,
321 struct _adapter *padapter)
322 {
323 u32 last_evm = 0, tmpVal;
324
325 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) &&
326 is_same_network(&(padapter->mlmepriv.cur_network.network), src)) {
327 if (padapter->recvpriv.signal_qual_data.total_num++ >=
328 PHY_LINKQUALITY_SLID_WIN_MAX) {
329 padapter->recvpriv.signal_qual_data.total_num =
330 PHY_LINKQUALITY_SLID_WIN_MAX;
331 last_evm = padapter->recvpriv.signal_qual_data.
332 elements[padapter->recvpriv.
333 signal_qual_data.index];
334 padapter->recvpriv.signal_qual_data.total_val -=
335 last_evm;
336 }
337 padapter->recvpriv.signal_qual_data.total_val += src->Rssi;
338
339 padapter->recvpriv.signal_qual_data.
340 elements[padapter->recvpriv.signal_qual_data.
341 index++] = src->Rssi;
342 if (padapter->recvpriv.signal_qual_data.index >=
343 PHY_LINKQUALITY_SLID_WIN_MAX)
344 padapter->recvpriv.signal_qual_data.index = 0;
345 /* <1> Showed on UI for user, in percentage. */
346 tmpVal = padapter->recvpriv.signal_qual_data.total_val /
347 padapter->recvpriv.signal_qual_data.total_num;
348 padapter->recvpriv.signal = (u8)tmpVal;
349
350 src->Rssi = padapter->recvpriv.signal;
351 } else {
352 src->Rssi = (src->Rssi + dst->Rssi) / 2;
353 }
354 memcpy((u8 *)dst, (u8 *)src, r8712_get_wlan_bssid_ex_sz(src));
355 }
356
357 static void update_current_network(struct _adapter *adapter,
358 struct wlan_bssid_ex *pnetwork)
359 {
360 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
361
362 if (is_same_network(&(pmlmepriv->cur_network.network), pnetwork)) {
363 update_network(&(pmlmepriv->cur_network.network),
364 pnetwork, adapter);
365 r8712_update_protection(adapter,
366 (pmlmepriv->cur_network.network.IEs) +
367 sizeof(struct NDIS_802_11_FIXED_IEs),
368 pmlmepriv->cur_network.network.IELength);
369 }
370 }
371
372 /*
373 Caller must hold pmlmepriv->lock first.
374 */
375 static void update_scanned_network(struct _adapter *adapter,
376 struct wlan_bssid_ex *target)
377 {
378 struct list_head *plist, *phead;
379
380 u32 bssid_ex_sz;
381 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
382 struct __queue *queue = &pmlmepriv->scanned_queue;
383 struct wlan_network *pnetwork = NULL;
384 struct wlan_network *oldest = NULL;
385
386 phead = &queue->queue;
387 plist = phead->next;
388
389 while (1) {
390 if (end_of_queue_search(phead, plist))
391 break;
392
393 pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);
394 if (is_same_network(&pnetwork->network, target))
395 break;
396 if ((oldest == ((struct wlan_network *)0)) ||
397 time_after((unsigned long)oldest->last_scanned,
398 (unsigned long)pnetwork->last_scanned))
399 oldest = pnetwork;
400
401 plist = plist->next;
402 }
403
404
405 /* If we didn't find a match, then get a new network slot to initialize
406 * with this beacon's information */
407 if (end_of_queue_search(phead, plist)) {
408 if (list_empty(&pmlmepriv->free_bss_pool.queue)) {
409 /* If there are no more slots, expire the oldest */
410 pnetwork = oldest;
411 target->Rssi = (pnetwork->network.Rssi +
412 target->Rssi) / 2;
413 memcpy(&pnetwork->network, target,
414 r8712_get_wlan_bssid_ex_sz(target));
415 pnetwork->last_scanned = jiffies;
416 } else {
417 /* Otherwise just pull from the free list */
418 /* update scan_time */
419 pnetwork = alloc_network(pmlmepriv);
420 if (pnetwork == NULL)
421 return;
422 bssid_ex_sz = r8712_get_wlan_bssid_ex_sz(target);
423 target->Length = bssid_ex_sz;
424 memcpy(&pnetwork->network, target, bssid_ex_sz);
425 list_add_tail(&pnetwork->list, &queue->queue);
426 }
427 } else {
428 /* we have an entry and we are going to update it. But
429 * this entry may be already expired. In this case we
430 * do the same as we found a new net and call the new_net
431 * handler
432 */
433 update_network(&pnetwork->network, target, adapter);
434 pnetwork->last_scanned = jiffies;
435 }
436 }
437
438 static void rtl8711_add_network(struct _adapter *adapter,
439 struct wlan_bssid_ex *pnetwork)
440 {
441 unsigned long irqL;
442 struct mlme_priv *pmlmepriv = &(((struct _adapter *)adapter)->mlmepriv);
443 struct __queue *queue = &pmlmepriv->scanned_queue;
444
445 spin_lock_irqsave(&queue->lock, irqL);
446 update_current_network(adapter, pnetwork);
447 update_scanned_network(adapter, pnetwork);
448 spin_unlock_irqrestore(&queue->lock, irqL);
449 }
450
451 /*select the desired network based on the capability of the (i)bss.
452 * check items: (1) security
453 * (2) network_type
454 * (3) WMM
455 * (4) HT
456 * (5) others
457 */
458 static int is_desired_network(struct _adapter *adapter,
459 struct wlan_network *pnetwork)
460 {
461 u8 wps_ie[512];
462 uint wps_ielen;
463 int bselected = true;
464 struct security_priv *psecuritypriv = &adapter->securitypriv;
465
466 if (psecuritypriv->wps_phase) {
467 if (r8712_get_wps_ie(pnetwork->network.IEs,
468 pnetwork->network.IELength, wps_ie,
469 &wps_ielen))
470 return true;
471 return false;
472 }
473 if ((psecuritypriv->PrivacyAlgrthm != _NO_PRIVACY_) &&
474 (pnetwork->network.Privacy == 0))
475 bselected = false;
476 if (check_fwstate(&adapter->mlmepriv, WIFI_ADHOC_STATE)) {
477 if (pnetwork->network.InfrastructureMode !=
478 adapter->mlmepriv.cur_network.network.
479 InfrastructureMode)
480 bselected = false;
481 }
482 return bselected;
483 }
484
485 /* TODO: Perry : For Power Management */
486 void r8712_atimdone_event_callback(struct _adapter *adapter, u8 *pbuf)
487 {
488 }
489
490 void r8712_survey_event_callback(struct _adapter *adapter, u8 *pbuf)
491 {
492 unsigned long flags;
493 u32 len;
494 struct wlan_bssid_ex *pnetwork;
495 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
496
497 pnetwork = (struct wlan_bssid_ex *)pbuf;
498 #ifdef __BIG_ENDIAN
499 /* endian_convert */
500 pnetwork->Length = le32_to_cpu(pnetwork->Length);
501 pnetwork->Ssid.SsidLength = le32_to_cpu(pnetwork->Ssid.SsidLength);
502 pnetwork->Privacy = le32_to_cpu(pnetwork->Privacy);
503 pnetwork->Rssi = le32_to_cpu(pnetwork->Rssi);
504 pnetwork->NetworkTypeInUse = le32_to_cpu(pnetwork->NetworkTypeInUse);
505 pnetwork->Configuration.ATIMWindow =
506 le32_to_cpu(pnetwork->Configuration.ATIMWindow);
507 pnetwork->Configuration.BeaconPeriod =
508 le32_to_cpu(pnetwork->Configuration.BeaconPeriod);
509 pnetwork->Configuration.DSConfig =
510 le32_to_cpu(pnetwork->Configuration.DSConfig);
511 pnetwork->Configuration.FHConfig.DwellTime =
512 le32_to_cpu(pnetwork->Configuration.FHConfig.DwellTime);
513 pnetwork->Configuration.FHConfig.HopPattern =
514 le32_to_cpu(pnetwork->Configuration.FHConfig.HopPattern);
515 pnetwork->Configuration.FHConfig.HopSet =
516 le32_to_cpu(pnetwork->Configuration.FHConfig.HopSet);
517 pnetwork->Configuration.FHConfig.Length =
518 le32_to_cpu(pnetwork->Configuration.FHConfig.Length);
519 pnetwork->Configuration.Length =
520 le32_to_cpu(pnetwork->Configuration.Length);
521 pnetwork->InfrastructureMode =
522 le32_to_cpu(pnetwork->InfrastructureMode);
523 pnetwork->IELength = le32_to_cpu(pnetwork->IELength);
524 #endif
525 len = r8712_get_wlan_bssid_ex_sz(pnetwork);
526 if (len > sizeof(struct wlan_bssid_ex))
527 return;
528 spin_lock_irqsave(&pmlmepriv->lock2, flags);
529 /* update IBSS_network 's timestamp */
530 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) {
531 if (!memcmp(&(pmlmepriv->cur_network.network.MacAddress),
532 pnetwork->MacAddress, ETH_ALEN)) {
533 struct wlan_network *ibss_wlan = NULL;
534
535 memcpy(pmlmepriv->cur_network.network.IEs,
536 pnetwork->IEs, 8);
537 ibss_wlan = r8712_find_network(
538 &pmlmepriv->scanned_queue,
539 pnetwork->MacAddress);
540 if (ibss_wlan) {
541 memcpy(ibss_wlan->network.IEs,
542 pnetwork->IEs, 8);
543 goto exit;
544 }
545 }
546 }
547 /* lock pmlmepriv->lock when you accessing network_q */
548 if (!check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
549 if (pnetwork->Ssid.Ssid[0] != 0) {
550 rtl8711_add_network(adapter, pnetwork);
551 } else {
552 pnetwork->Ssid.SsidLength = 8;
553 memcpy(pnetwork->Ssid.Ssid, "<hidden>", 8);
554 rtl8711_add_network(adapter, pnetwork);
555 }
556 }
557 exit:
558 spin_unlock_irqrestore(&pmlmepriv->lock2, flags);
559 }
560
561 void r8712_surveydone_event_callback(struct _adapter *adapter, u8 *pbuf)
562 {
563 unsigned long irqL;
564 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
565
566 spin_lock_irqsave(&pmlmepriv->lock, irqL);
567
568 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
569 del_timer(&pmlmepriv->scan_to_timer);
570
571 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
572 }
573
574 if (pmlmepriv->to_join) {
575 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
576 if (!check_fwstate(pmlmepriv, _FW_LINKED)) {
577 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
578
579 if (r8712_select_and_join_from_scan(pmlmepriv)
580 == _SUCCESS)
581 mod_timer(&pmlmepriv->assoc_timer, jiffies +
582 msecs_to_jiffies(MAX_JOIN_TIMEOUT));
583 else {
584 struct wlan_bssid_ex *pdev_network =
585 &(adapter->registrypriv.dev_network);
586 u8 *pibss =
587 adapter->registrypriv.
588 dev_network.MacAddress;
589 pmlmepriv->fw_state ^= _FW_UNDER_SURVEY;
590 memcpy(&pdev_network->Ssid,
591 &pmlmepriv->assoc_ssid,
592 sizeof(struct
593 ndis_802_11_ssid));
594 r8712_update_registrypriv_dev_network
595 (adapter);
596 r8712_generate_random_ibss(pibss);
597 pmlmepriv->fw_state =
598 WIFI_ADHOC_MASTER_STATE;
599 pmlmepriv->to_join = false;
600 }
601 }
602 } else {
603 pmlmepriv->to_join = false;
604 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
605 if (r8712_select_and_join_from_scan(pmlmepriv) ==
606 _SUCCESS)
607 mod_timer(&pmlmepriv->assoc_timer, jiffies +
608 msecs_to_jiffies(MAX_JOIN_TIMEOUT));
609 else
610 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
611 }
612 }
613 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
614 }
615
616 /*
617 *r8712_free_assoc_resources: the caller has to lock pmlmepriv->lock
618 */
619 void r8712_free_assoc_resources(struct _adapter *adapter)
620 {
621 unsigned long irqL;
622 struct wlan_network *pwlan = NULL;
623 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
624 struct sta_priv *pstapriv = &adapter->stapriv;
625 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
626
627 pwlan = r8712_find_network(&pmlmepriv->scanned_queue,
628 tgt_network->network.MacAddress);
629
630 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE)) {
631 struct sta_info *psta;
632
633 psta = r8712_get_stainfo(&adapter->stapriv,
634 tgt_network->network.MacAddress);
635
636 spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
637 r8712_free_stainfo(adapter, psta);
638 spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
639 }
640
641 if (check_fwstate(pmlmepriv,
642 WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE | WIFI_AP_STATE))
643 r8712_free_all_stainfo(adapter);
644 if (pwlan)
645 pwlan->fixed = false;
646
647 if (((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) &&
648 (adapter->stapriv.asoc_sta_count == 1)))
649 free_network_nolock(pmlmepriv, pwlan);
650 }
651
652 /*
653 *r8712_indicate_connect: the caller has to lock pmlmepriv->lock
654 */
655 void r8712_indicate_connect(struct _adapter *padapter)
656 {
657 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
658
659 pmlmepriv->to_join = false;
660 set_fwstate(pmlmepriv, _FW_LINKED);
661 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_LINK);
662 r8712_os_indicate_connect(padapter);
663 if (padapter->registrypriv.power_mgnt > PS_MODE_ACTIVE)
664 mod_timer(&pmlmepriv->dhcp_timer,
665 jiffies + msecs_to_jiffies(60000));
666 }
667
668
669 /*
670 *r8712_ind_disconnect: the caller has to lock pmlmepriv->lock
671 */
672 void r8712_ind_disconnect(struct _adapter *padapter)
673 {
674 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
675
676 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
677 _clr_fwstate_(pmlmepriv, _FW_LINKED);
678 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_NO_LINK);
679 r8712_os_indicate_disconnect(padapter);
680 }
681 if (padapter->pwrctrlpriv.pwr_mode !=
682 padapter->registrypriv.power_mgnt) {
683 del_timer(&pmlmepriv->dhcp_timer);
684 r8712_set_ps_mode(padapter, padapter->registrypriv.power_mgnt,
685 padapter->registrypriv.smart_ps);
686 }
687 }
688
689 /*Notes:
690 *pnetwork : returns from r8712_joinbss_event_callback
691 *ptarget_wlan: found from scanned_queue
692 *if join_res > 0, for (fw_state==WIFI_STATION_STATE), we check if
693 * "ptarget_sta" & "ptarget_wlan" exist.
694 *if join_res > 0, for (fw_state==WIFI_ADHOC_STATE), we only check
695 * if "ptarget_wlan" exist.
696 *if join_res > 0, update "cur_network->network" from
697 * "pnetwork->network" if (ptarget_wlan !=NULL).
698 */
699 void r8712_joinbss_event_callback(struct _adapter *adapter, u8 *pbuf)
700 {
701 unsigned long irqL = 0, irqL2;
702 struct sta_info *ptarget_sta = NULL, *pcur_sta = NULL;
703 struct sta_priv *pstapriv = &adapter->stapriv;
704 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
705 struct wlan_network *cur_network = &pmlmepriv->cur_network;
706 struct wlan_network *pcur_wlan = NULL, *ptarget_wlan = NULL;
707 unsigned int the_same_macaddr = false;
708 struct wlan_network *pnetwork;
709
710 if (sizeof(struct list_head) == 4 * sizeof(u32)) {
711 pnetwork = kmalloc(sizeof(struct wlan_network), GFP_ATOMIC);
712 if (!pnetwork)
713 return;
714 memcpy((u8 *)pnetwork + 16, (u8 *)pbuf + 8,
715 sizeof(struct wlan_network) - 16);
716 } else {
717 pnetwork = (struct wlan_network *)pbuf;
718 }
719
720 #ifdef __BIG_ENDIAN
721 /* endian_convert */
722 pnetwork->join_res = le32_to_cpu(pnetwork->join_res);
723 pnetwork->network_type = le32_to_cpu(pnetwork->network_type);
724 pnetwork->network.Length = le32_to_cpu(pnetwork->network.Length);
725 pnetwork->network.Ssid.SsidLength =
726 le32_to_cpu(pnetwork->network.Ssid.SsidLength);
727 pnetwork->network.Privacy = le32_to_cpu(pnetwork->network.Privacy);
728 pnetwork->network.Rssi = le32_to_cpu(pnetwork->network.Rssi);
729 pnetwork->network.NetworkTypeInUse =
730 le32_to_cpu(pnetwork->network.NetworkTypeInUse);
731 pnetwork->network.Configuration.ATIMWindow =
732 le32_to_cpu(pnetwork->network.Configuration.ATIMWindow);
733 pnetwork->network.Configuration.BeaconPeriod =
734 le32_to_cpu(pnetwork->network.Configuration.BeaconPeriod);
735 pnetwork->network.Configuration.DSConfig =
736 le32_to_cpu(pnetwork->network.Configuration.DSConfig);
737 pnetwork->network.Configuration.FHConfig.DwellTime =
738 le32_to_cpu(pnetwork->network.Configuration.FHConfig.
739 DwellTime);
740 pnetwork->network.Configuration.FHConfig.HopPattern =
741 le32_to_cpu(pnetwork->network.Configuration.
742 FHConfig.HopPattern);
743 pnetwork->network.Configuration.FHConfig.HopSet =
744 le32_to_cpu(pnetwork->network.Configuration.FHConfig.HopSet);
745 pnetwork->network.Configuration.FHConfig.Length =
746 le32_to_cpu(pnetwork->network.Configuration.FHConfig.Length);
747 pnetwork->network.Configuration.Length =
748 le32_to_cpu(pnetwork->network.Configuration.Length);
749 pnetwork->network.InfrastructureMode =
750 le32_to_cpu(pnetwork->network.InfrastructureMode);
751 pnetwork->network.IELength = le32_to_cpu(pnetwork->network.IELength);
752 #endif
753
754 the_same_macaddr = !memcmp(pnetwork->network.MacAddress,
755 cur_network->network.MacAddress, ETH_ALEN);
756 pnetwork->network.Length =
757 r8712_get_wlan_bssid_ex_sz(&pnetwork->network);
758 spin_lock_irqsave(&pmlmepriv->lock, irqL);
759 if (pnetwork->network.Length > sizeof(struct wlan_bssid_ex))
760 goto ignore_joinbss_callback;
761 if (pnetwork->join_res > 0) {
762 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
763 /*s1. find ptarget_wlan*/
764 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
765 if (the_same_macaddr) {
766 ptarget_wlan =
767 r8712_find_network(&pmlmepriv->
768 scanned_queue,
769 cur_network->network.MacAddress);
770 } else {
771 pcur_wlan =
772 r8712_find_network(&pmlmepriv->
773 scanned_queue,
774 cur_network->network.MacAddress);
775 pcur_wlan->fixed = false;
776
777 pcur_sta = r8712_get_stainfo(pstapriv,
778 cur_network->network.MacAddress);
779 spin_lock_irqsave(&pstapriv->
780 sta_hash_lock, irqL2);
781 r8712_free_stainfo(adapter, pcur_sta);
782 spin_unlock_irqrestore(&(pstapriv->
783 sta_hash_lock), irqL2);
784
785 ptarget_wlan =
786 r8712_find_network(&pmlmepriv->
787 scanned_queue,
788 pnetwork->network.
789 MacAddress);
790 if (ptarget_wlan)
791 ptarget_wlan->fixed = true;
792 }
793 } else {
794 ptarget_wlan = r8712_find_network(&pmlmepriv->
795 scanned_queue,
796 pnetwork->network.MacAddress);
797 if (ptarget_wlan)
798 ptarget_wlan->fixed = true;
799 }
800
801 if (ptarget_wlan == NULL) {
802 if (check_fwstate(pmlmepriv,
803 _FW_UNDER_LINKING))
804 pmlmepriv->fw_state ^=
805 _FW_UNDER_LINKING;
806 goto ignore_joinbss_callback;
807 }
808
809 /*s2. find ptarget_sta & update ptarget_sta*/
810 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
811 if (the_same_macaddr) {
812 ptarget_sta =
813 r8712_get_stainfo(pstapriv,
814 pnetwork->network.MacAddress);
815 if (ptarget_sta == NULL)
816 ptarget_sta =
817 r8712_alloc_stainfo(pstapriv,
818 pnetwork->network.MacAddress);
819 } else {
820 ptarget_sta =
821 r8712_alloc_stainfo(pstapriv,
822 pnetwork->network.MacAddress);
823 }
824 if (ptarget_sta) /*update ptarget_sta*/ {
825 ptarget_sta->aid = pnetwork->join_res;
826 ptarget_sta->qos_option = 1;
827 ptarget_sta->mac_id = 5;
828 if (adapter->securitypriv.
829 AuthAlgrthm == 2) {
830 adapter->securitypriv.
831 binstallGrpkey =
832 false;
833 adapter->securitypriv.
834 busetkipkey =
835 false;
836 adapter->securitypriv.
837 bgrpkey_handshake =
838 false;
839 ptarget_sta->ieee8021x_blocked
840 = true;
841 ptarget_sta->XPrivacy =
842 adapter->securitypriv.
843 PrivacyAlgrthm;
844 memset((u8 *)&ptarget_sta->
845 x_UncstKey,
846 0,
847 sizeof(union Keytype));
848 memset((u8 *)&ptarget_sta->
849 tkiprxmickey,
850 0,
851 sizeof(union Keytype));
852 memset((u8 *)&ptarget_sta->
853 tkiptxmickey,
854 0,
855 sizeof(union Keytype));
856 memset((u8 *)&ptarget_sta->
857 txpn, 0,
858 sizeof(union pn48));
859 memset((u8 *)&ptarget_sta->
860 rxpn, 0,
861 sizeof(union pn48));
862 }
863 } else {
864 if (check_fwstate(pmlmepriv,
865 _FW_UNDER_LINKING))
866 pmlmepriv->fw_state ^=
867 _FW_UNDER_LINKING;
868 goto ignore_joinbss_callback;
869 }
870 }
871
872 /*s3. update cur_network & indicate connect*/
873 memcpy(&cur_network->network, &pnetwork->network,
874 pnetwork->network.Length);
875 cur_network->aid = pnetwork->join_res;
876 /*update fw_state will clr _FW_UNDER_LINKING*/
877 switch (pnetwork->network.InfrastructureMode) {
878 case Ndis802_11Infrastructure:
879 pmlmepriv->fw_state = WIFI_STATION_STATE;
880 break;
881 case Ndis802_11IBSS:
882 pmlmepriv->fw_state = WIFI_ADHOC_STATE;
883 break;
884 default:
885 pmlmepriv->fw_state = WIFI_NULL_STATE;
886 break;
887 }
888 r8712_update_protection(adapter,
889 (cur_network->network.IEs) +
890 sizeof(struct NDIS_802_11_FIXED_IEs),
891 (cur_network->network.IELength));
892 /*TODO: update HT_Capability*/
893 update_ht_cap(adapter, cur_network->network.IEs,
894 cur_network->network.IELength);
895 /*indicate connect*/
896 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE))
897 r8712_indicate_connect(adapter);
898 del_timer(&pmlmepriv->assoc_timer);
899 } else {
900 goto ignore_joinbss_callback;
901 }
902 } else {
903 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
904 mod_timer(&pmlmepriv->assoc_timer,
905 jiffies + msecs_to_jiffies(1));
906 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
907 }
908 }
909 ignore_joinbss_callback:
910 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
911 if (sizeof(struct list_head) == 4 * sizeof(u32))
912 kfree(pnetwork);
913 }
914
915 void r8712_stassoc_event_callback(struct _adapter *adapter, u8 *pbuf)
916 {
917 unsigned long irqL;
918 struct sta_info *psta;
919 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
920 struct stassoc_event *pstassoc = (struct stassoc_event *)pbuf;
921
922 /* to do: */
923 if (!r8712_access_ctrl(&adapter->acl_list, pstassoc->macaddr))
924 return;
925 psta = r8712_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
926 if (psta != NULL) {
927 /*the sta have been in sta_info_queue => do nothing
928 *(between drv has received this event before and
929 * fw have not yet to set key to CAM_ENTRY) */
930 return;
931 }
932
933 psta = r8712_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
934 if (psta == NULL)
935 return;
936 /* to do : init sta_info variable */
937 psta->qos_option = 0;
938 psta->mac_id = le32_to_cpu((uint)pstassoc->cam_id);
939 /* psta->aid = (uint)pstassoc->cam_id; */
940
941 if (adapter->securitypriv.AuthAlgrthm == 2)
942 psta->XPrivacy = adapter->securitypriv.PrivacyAlgrthm;
943 psta->ieee8021x_blocked = false;
944 spin_lock_irqsave(&pmlmepriv->lock, irqL);
945 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
946 check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
947 if (adapter->stapriv.asoc_sta_count == 2) {
948 /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
949 r8712_indicate_connect(adapter);
950 }
951 }
952 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
953 }
954
955 void r8712_stadel_event_callback(struct _adapter *adapter, u8 *pbuf)
956 {
957 unsigned long irqL, irqL2;
958 struct sta_info *psta;
959 struct wlan_network *pwlan = NULL;
960 struct wlan_bssid_ex *pdev_network = NULL;
961 u8 *pibss = NULL;
962 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
963 struct stadel_event *pstadel = (struct stadel_event *)pbuf;
964 struct sta_priv *pstapriv = &adapter->stapriv;
965 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
966
967 spin_lock_irqsave(&pmlmepriv->lock, irqL2);
968 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
969 r8712_ind_disconnect(adapter);
970 r8712_free_assoc_resources(adapter);
971 }
972 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE |
973 WIFI_ADHOC_STATE)) {
974 psta = r8712_get_stainfo(&adapter->stapriv, pstadel->macaddr);
975 spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
976 r8712_free_stainfo(adapter, psta);
977 spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
978 if (adapter->stapriv.asoc_sta_count == 1) {
979 /*a sta + bc/mc_stainfo (not Ibss_stainfo) */
980 pwlan = r8712_find_network(&pmlmepriv->scanned_queue,
981 tgt_network->network.MacAddress);
982 if (pwlan) {
983 pwlan->fixed = false;
984 free_network_nolock(pmlmepriv, pwlan);
985 }
986 /*re-create ibss*/
987 pdev_network = &(adapter->registrypriv.dev_network);
988 pibss = adapter->registrypriv.dev_network.MacAddress;
989 memcpy(pdev_network, &tgt_network->network,
990 r8712_get_wlan_bssid_ex_sz(&tgt_network->
991 network));
992 memcpy(&pdev_network->Ssid,
993 &pmlmepriv->assoc_ssid,
994 sizeof(struct ndis_802_11_ssid));
995 r8712_update_registrypriv_dev_network(adapter);
996 r8712_generate_random_ibss(pibss);
997 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
998 _clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
999 set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
1000 }
1001 }
1002 }
1003 spin_unlock_irqrestore(&pmlmepriv->lock, irqL2);
1004 }
1005
1006 void r8712_cpwm_event_callback(struct _adapter *adapter, u8 *pbuf)
1007 {
1008 struct reportpwrstate_parm *preportpwrstate =
1009 (struct reportpwrstate_parm *)pbuf;
1010
1011 preportpwrstate->state |= (u8)(adapter->pwrctrlpriv.cpwm_tog + 0x80);
1012 r8712_cpwm_int_hdl(adapter, preportpwrstate);
1013 }
1014
1015 /* When the Netgear 3500 AP is with WPA2PSK-AES mode, it will send
1016 * the ADDBA req frame with start seq control = 0 to wifi client after
1017 * the WPA handshake and the seqence number of following data packet
1018 * will be 0. In this case, the Rx reorder sequence is not longer than 0
1019 * and the WiFi client will drop the data with seq number 0.
1020 * So, the 8712 firmware has to inform driver with receiving the
1021 * ADDBA-Req frame so that the driver can reset the
1022 * sequence value of Rx reorder control.
1023 */
1024 void r8712_got_addbareq_event_callback(struct _adapter *adapter, u8 *pbuf)
1025 {
1026 struct ADDBA_Req_Report_parm *pAddbareq_pram =
1027 (struct ADDBA_Req_Report_parm *)pbuf;
1028 struct sta_info *psta;
1029 struct sta_priv *pstapriv = &adapter->stapriv;
1030 struct recv_reorder_ctrl *precvreorder_ctrl = NULL;
1031
1032 psta = r8712_get_stainfo(pstapriv, pAddbareq_pram->MacAddress);
1033 if (psta) {
1034 precvreorder_ctrl =
1035 &psta->recvreorder_ctrl[pAddbareq_pram->tid];
1036 /* set the indicate_seq to 0xffff so that the rx reorder
1037 * can store any following data packet.
1038 */
1039 precvreorder_ctrl->indicate_seq = 0xffff;
1040 }
1041 }
1042
1043 void r8712_wpspbc_event_callback(struct _adapter *adapter, u8 *pbuf)
1044 {
1045 if (!adapter->securitypriv.wps_hw_pbc_pressed)
1046 adapter->securitypriv.wps_hw_pbc_pressed = true;
1047 }
1048
1049 void _r8712_sitesurvey_ctrl_handler(struct _adapter *adapter)
1050 {
1051 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1052 struct sitesurvey_ctrl *psitesurveyctrl = &pmlmepriv->sitesurveyctrl;
1053 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1054 u64 current_tx_pkts;
1055 uint current_rx_pkts;
1056
1057 current_tx_pkts = (adapter->xmitpriv.tx_pkts) -
1058 (psitesurveyctrl->last_tx_pkts);
1059 current_rx_pkts = (adapter->recvpriv.rx_pkts) -
1060 (psitesurveyctrl->last_rx_pkts);
1061 psitesurveyctrl->last_tx_pkts = adapter->xmitpriv.tx_pkts;
1062 psitesurveyctrl->last_rx_pkts = adapter->recvpriv.rx_pkts;
1063 if ((current_tx_pkts > pregistrypriv->busy_thresh) ||
1064 (current_rx_pkts > pregistrypriv->busy_thresh))
1065 psitesurveyctrl->traffic_busy = true;
1066 else
1067 psitesurveyctrl->traffic_busy = false;
1068 }
1069
1070 void _r8712_join_timeout_handler(struct _adapter *adapter)
1071 {
1072 unsigned long irqL;
1073 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1074
1075 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1076 return;
1077 spin_lock_irqsave(&pmlmepriv->lock, irqL);
1078 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1079 pmlmepriv->to_join = false;
1080 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1081 r8712_os_indicate_disconnect(adapter);
1082 _clr_fwstate_(pmlmepriv, _FW_LINKED);
1083 }
1084 if (adapter->pwrctrlpriv.pwr_mode != adapter->registrypriv.power_mgnt) {
1085 r8712_set_ps_mode(adapter, adapter->registrypriv.power_mgnt,
1086 adapter->registrypriv.smart_ps);
1087 }
1088 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
1089 }
1090
1091 void r8712_scan_timeout_handler (struct _adapter *adapter)
1092 {
1093 unsigned long irqL;
1094 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1095
1096 spin_lock_irqsave(&pmlmepriv->lock, irqL);
1097 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
1098 pmlmepriv->to_join = false; /* scan fail, so clear to_join flag */
1099 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
1100 }
1101
1102 void _r8712_dhcp_timeout_handler (struct _adapter *adapter)
1103 {
1104 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1105 return;
1106 if (adapter->pwrctrlpriv.pwr_mode != adapter->registrypriv.power_mgnt)
1107 r8712_set_ps_mode(adapter, adapter->registrypriv.power_mgnt,
1108 adapter->registrypriv.smart_ps);
1109 }
1110
1111 void _r8712_wdg_timeout_handler(struct _adapter *adapter)
1112 {
1113 r8712_wdg_wk_cmd(adapter);
1114 }
1115
1116 int r8712_select_and_join_from_scan(struct mlme_priv *pmlmepriv)
1117 {
1118 struct list_head *phead;
1119 unsigned char *dst_ssid, *src_ssid;
1120 struct _adapter *adapter;
1121 struct __queue *queue = NULL;
1122 struct wlan_network *pnetwork = NULL;
1123 struct wlan_network *pnetwork_max_rssi = NULL;
1124
1125 adapter = (struct _adapter *)pmlmepriv->nic_hdl;
1126 queue = &pmlmepriv->scanned_queue;
1127 phead = &queue->queue;
1128 pmlmepriv->pscanned = phead->next;
1129 while (1) {
1130 if (end_of_queue_search(phead, pmlmepriv->pscanned)) {
1131 if ((pmlmepriv->assoc_by_rssi) &&
1132 (pnetwork_max_rssi != NULL)) {
1133 pnetwork = pnetwork_max_rssi;
1134 goto ask_for_joinbss;
1135 }
1136 return _FAIL;
1137 }
1138 pnetwork = LIST_CONTAINOR(pmlmepriv->pscanned,
1139 struct wlan_network, list);
1140 if (pnetwork == NULL)
1141 return _FAIL;
1142 pmlmepriv->pscanned = pmlmepriv->pscanned->next;
1143 if (pmlmepriv->assoc_by_bssid) {
1144 dst_ssid = pnetwork->network.MacAddress;
1145 src_ssid = pmlmepriv->assoc_bssid;
1146 if (!memcmp(dst_ssid, src_ssid, ETH_ALEN)) {
1147 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1148 if (is_same_network(&pmlmepriv->
1149 cur_network.network,
1150 &pnetwork->network)) {
1151 _clr_fwstate_(pmlmepriv,
1152 _FW_UNDER_LINKING);
1153 /*r8712_indicate_connect again*/
1154 r8712_indicate_connect(adapter);
1155 return 2;
1156 }
1157 r8712_disassoc_cmd(adapter);
1158 r8712_ind_disconnect(adapter);
1159 r8712_free_assoc_resources(adapter);
1160 }
1161 goto ask_for_joinbss;
1162 }
1163 } else if (pmlmepriv->assoc_ssid.SsidLength == 0) {
1164 goto ask_for_joinbss;
1165 }
1166 dst_ssid = pnetwork->network.Ssid.Ssid;
1167 src_ssid = pmlmepriv->assoc_ssid.Ssid;
1168 if ((pnetwork->network.Ssid.SsidLength ==
1169 pmlmepriv->assoc_ssid.SsidLength) &&
1170 (!memcmp(dst_ssid, src_ssid,
1171 pmlmepriv->assoc_ssid.SsidLength))) {
1172 if (pmlmepriv->assoc_by_rssi) {
1173 /* if the ssid is the same, select the bss
1174 * which has the max rssi*/
1175 if (pnetwork_max_rssi) {
1176 if (pnetwork->network.Rssi >
1177 pnetwork_max_rssi->network.Rssi)
1178 pnetwork_max_rssi = pnetwork;
1179 } else {
1180 pnetwork_max_rssi = pnetwork;
1181 }
1182 } else if (is_desired_network(adapter, pnetwork)) {
1183 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1184 r8712_disassoc_cmd(adapter);
1185 r8712_free_assoc_resources(adapter);
1186 }
1187 goto ask_for_joinbss;
1188 }
1189 }
1190 }
1191
1192 ask_for_joinbss:
1193 return r8712_joinbss_cmd(adapter, pnetwork);
1194 }
1195
1196 sint r8712_set_auth(struct _adapter *adapter,
1197 struct security_priv *psecuritypriv)
1198 {
1199 struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
1200 struct cmd_obj *pcmd;
1201 struct setauth_parm *psetauthparm;
1202
1203 pcmd = kmalloc(sizeof(*pcmd), GFP_ATOMIC);
1204 if (!pcmd)
1205 return _FAIL;
1206
1207 psetauthparm = kzalloc(sizeof(*psetauthparm), GFP_ATOMIC);
1208 if (psetauthparm == NULL) {
1209 kfree(pcmd);
1210 return _FAIL;
1211 }
1212 psetauthparm->mode = (u8)psecuritypriv->AuthAlgrthm;
1213 pcmd->cmdcode = _SetAuth_CMD_;
1214 pcmd->parmbuf = (unsigned char *)psetauthparm;
1215 pcmd->cmdsz = sizeof(struct setauth_parm);
1216 pcmd->rsp = NULL;
1217 pcmd->rspsz = 0;
1218 INIT_LIST_HEAD(&pcmd->list);
1219 r8712_enqueue_cmd(pcmdpriv, pcmd);
1220 return _SUCCESS;
1221 }
1222
1223 sint r8712_set_key(struct _adapter *adapter,
1224 struct security_priv *psecuritypriv,
1225 sint keyid)
1226 {
1227 struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
1228 struct cmd_obj *pcmd;
1229 struct setkey_parm *psetkeyparm;
1230 u8 keylen;
1231 sint ret = _SUCCESS;
1232
1233 pcmd = kmalloc(sizeof(*pcmd), GFP_ATOMIC);
1234 if (!pcmd)
1235 return _FAIL;
1236 psetkeyparm = kzalloc(sizeof(*psetkeyparm), GFP_ATOMIC);
1237 if (psetkeyparm == NULL) {
1238 ret = _FAIL;
1239 goto err_free_cmd;
1240 }
1241 if (psecuritypriv->AuthAlgrthm == 2) { /* 802.1X */
1242 psetkeyparm->algorithm =
1243 (u8)psecuritypriv->XGrpPrivacy;
1244 } else { /* WEP */
1245 psetkeyparm->algorithm =
1246 (u8)psecuritypriv->PrivacyAlgrthm;
1247 }
1248 psetkeyparm->keyid = (u8)keyid;
1249
1250 switch (psetkeyparm->algorithm) {
1251 case _WEP40_:
1252 keylen = 5;
1253 memcpy(psetkeyparm->key,
1254 psecuritypriv->DefKey[keyid].skey, keylen);
1255 break;
1256 case _WEP104_:
1257 keylen = 13;
1258 memcpy(psetkeyparm->key,
1259 psecuritypriv->DefKey[keyid].skey, keylen);
1260 break;
1261 case _TKIP_:
1262 if (keyid < 1 || keyid > 2) {
1263 ret = _FAIL;
1264 goto err_free_parm;
1265 }
1266 keylen = 16;
1267 memcpy(psetkeyparm->key,
1268 &psecuritypriv->XGrpKey[keyid - 1], keylen);
1269 psetkeyparm->grpkey = 1;
1270 break;
1271 case _AES_:
1272 if (keyid < 1 || keyid > 2) {
1273 ret = _FAIL;
1274 goto err_free_parm;
1275 }
1276 keylen = 16;
1277 memcpy(psetkeyparm->key,
1278 &psecuritypriv->XGrpKey[keyid - 1], keylen);
1279 psetkeyparm->grpkey = 1;
1280 break;
1281 default:
1282 ret = _FAIL;
1283 goto err_free_parm;
1284 }
1285 pcmd->cmdcode = _SetKey_CMD_;
1286 pcmd->parmbuf = (u8 *)psetkeyparm;
1287 pcmd->cmdsz = (sizeof(struct setkey_parm));
1288 pcmd->rsp = NULL;
1289 pcmd->rspsz = 0;
1290 INIT_LIST_HEAD(&pcmd->list);
1291 r8712_enqueue_cmd(pcmdpriv, pcmd);
1292 return ret;
1293
1294 err_free_parm:
1295 kfree(psetkeyparm);
1296 err_free_cmd:
1297 kfree(pcmd);
1298 return ret;
1299 }
1300
1301 /* adjust IEs for r8712_joinbss_cmd in WMM */
1302 int r8712_restruct_wmm_ie(struct _adapter *adapter, u8 *in_ie, u8 *out_ie,
1303 uint in_len, uint initial_out_len)
1304 {
1305 unsigned int ielength = 0;
1306 unsigned int i, j;
1307
1308 i = 12; /* after the fixed IE */
1309 while (i < in_len) {
1310 ielength = initial_out_len;
1311 if (in_ie[i] == 0xDD && in_ie[i + 2] == 0x00 &&
1312 in_ie[i + 3] == 0x50 && in_ie[i + 4] == 0xF2 &&
1313 in_ie[i + 5] == 0x02 && i + 5 < in_len) {
1314 /*WMM element ID and OUI*/
1315 for (j = i; j < i + 9; j++) {
1316 out_ie[ielength] = in_ie[j];
1317 ielength++;
1318 }
1319 out_ie[initial_out_len + 1] = 0x07;
1320 out_ie[initial_out_len + 6] = 0x00;
1321 out_ie[initial_out_len + 8] = 0x00;
1322 break;
1323 }
1324 i += (in_ie[i + 1] + 2); /* to the next IE element */
1325 }
1326 return ielength;
1327 }
1328
1329 /*
1330 * Ported from 8185: IsInPreAuthKeyList().
1331 *
1332 * Search by BSSID,
1333 * Return Value:
1334 * -1 :if there is no pre-auth key in the table
1335 * >=0 :if there is pre-auth key, and return the entry id
1336 */
1337 static int SecIsInPMKIDList(struct _adapter *Adapter, u8 *bssid)
1338 {
1339 struct security_priv *psecuritypriv = &Adapter->securitypriv;
1340 int i = 0;
1341
1342 do {
1343 if (psecuritypriv->PMKIDList[i].bUsed &&
1344 (!memcmp(psecuritypriv->PMKIDList[i].Bssid,
1345 bssid, ETH_ALEN)))
1346 break;
1347 else
1348 i++;
1349 } while (i < NUM_PMKID_CACHE);
1350
1351 if (i == NUM_PMKID_CACHE) {
1352 i = -1; /* Could not find. */
1353 } else {
1354 ; /* There is one Pre-Authentication Key for the
1355 * specific BSSID. */
1356 }
1357 return i;
1358 }
1359
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[255], 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 while (true) {
1435 /*check wpa_oui tag*/
1436 if (memcmp(&sec_ie[2], &wpa_oui[0], 4)) {
1437 match = false;
1438 break;
1439 }
1440 if ((sec_ie[6] != 0x01) || (sec_ie[7] != 0x0)) {
1441 /*IE Ver error*/
1442 match = false;
1443 break;
1444 }
1445 if (!memcmp(&sec_ie[8], &wpa_oui[0], 3)) {
1446 /* get bc/mc encryption type (group
1447 * key type)*/
1448 switch (sec_ie[11]) {
1449 case 0x0: /*none*/
1450 psecuritypriv->XGrpPrivacy =
1451 _NO_PRIVACY_;
1452 break;
1453 case 0x1: /*WEP_40*/
1454 psecuritypriv->XGrpPrivacy =
1455 _WEP40_;
1456 break;
1457 case 0x2: /*TKIP*/
1458 psecuritypriv->XGrpPrivacy =
1459 _TKIP_;
1460 break;
1461 case 0x3: /*AESCCMP*/
1462 case 0x4:
1463 psecuritypriv->XGrpPrivacy =
1464 _AES_;
1465 break;
1466 case 0x5: /*WEP_104*/
1467 psecuritypriv->XGrpPrivacy =
1468 _WEP104_;
1469 break;
1470 }
1471 } else {
1472 match = false;
1473 break;
1474 }
1475 if (sec_ie[12] == 0x01) {
1476 /*check the unicast encryption type*/
1477 if (memcmp(&sec_ie[14],
1478 &uncst_oui[0], 4)) {
1479 match = false;
1480 break;
1481
1482 } /*else the uncst_oui is match*/
1483 } else { /*mixed mode, unicast_enc_type > 1*/
1484 /*select the uncst_oui and remove
1485 * the other uncst_oui*/
1486 cnt = sec_ie[12];
1487 remove_cnt = (cnt - 1) * 4;
1488 sec_ie[12] = 0x01;
1489 memcpy(&sec_ie[14], &uncst_oui[0], 4);
1490 /*remove the other unicast suit*/
1491 memcpy(&sec_ie[18],
1492 &sec_ie[18 + remove_cnt],
1493 sec_ie[1] - 18 + 2 -
1494 remove_cnt);
1495 sec_ie[1] = sec_ie[1] - remove_cnt;
1496 }
1497 break;
1498 }
1499 }
1500 if (authmode == _WPA2_IE_ID_) {
1501 /* parsing RSN IE to select required encryption
1502 * algorithm, and set the bc/mc encryption algorithm */
1503 while (true) {
1504 if ((sec_ie[2] != 0x01) || (sec_ie[3] != 0x0)) {
1505 /*IE Ver error*/
1506 match = false;
1507 break;
1508 }
1509 if (!memcmp(&sec_ie[4], &uncst_oui[0], 3)) {
1510 /*get bc/mc encryption type*/
1511 switch (sec_ie[7]) {
1512 case 0x1: /*WEP_40*/
1513 psecuritypriv->XGrpPrivacy =
1514 _WEP40_;
1515 break;
1516 case 0x2: /*TKIP*/
1517 psecuritypriv->XGrpPrivacy =
1518 _TKIP_;
1519 break;
1520 case 0x4: /*AESWRAP*/
1521 psecuritypriv->XGrpPrivacy =
1522 _AES_;
1523 break;
1524 case 0x5: /*WEP_104*/
1525 psecuritypriv->XGrpPrivacy =
1526 _WEP104_;
1527 break;
1528 default: /*one*/
1529 psecuritypriv->XGrpPrivacy =
1530 _NO_PRIVACY_;
1531 break;
1532 }
1533 } else {
1534 match = false;
1535 break;
1536 }
1537 if (sec_ie[8] == 0x01) {
1538 /*check the unicast encryption type*/
1539 if (memcmp(&sec_ie[10],
1540 &uncst_oui[0], 4)) {
1541 match = false;
1542 break;
1543 } /*else the uncst_oui is match*/
1544 } else { /*mixed mode, unicast_enc_type > 1*/
1545 /*select the uncst_oui and remove the
1546 * other uncst_oui*/
1547 cnt = sec_ie[8];
1548 remove_cnt = (cnt - 1) * 4;
1549 sec_ie[8] = 0x01;
1550 memcpy(&sec_ie[10], &uncst_oui[0], 4);
1551 /*remove the other unicast suit*/
1552 memcpy(&sec_ie[14],
1553 &sec_ie[14 + remove_cnt],
1554 (sec_ie[1] - 14 + 2 -
1555 remove_cnt));
1556 sec_ie[1] = sec_ie[1] - remove_cnt;
1557 }
1558 break;
1559 }
1560 }
1561 }
1562 if ((authmode == _WPA_IE_ID_) || (authmode == _WPA2_IE_ID_)) {
1563 /*copy fixed ie*/
1564 memcpy(out_ie, in_ie, 12);
1565 ielength = 12;
1566 /*copy RSN or SSN*/
1567 if (match) {
1568 memcpy(&out_ie[ielength], &sec_ie[0], sec_ie[1] + 2);
1569 ielength += sec_ie[1] + 2;
1570 if (authmode == _WPA2_IE_ID_) {
1571 /*the Pre-Authentication bit should be zero*/
1572 out_ie[ielength - 1] = 0;
1573 out_ie[ielength - 2] = 0;
1574 }
1575 r8712_report_sec_ie(adapter, authmode, sec_ie);
1576 }
1577 } else {
1578 /*copy fixed ie only*/
1579 memcpy(out_ie, in_ie, 12);
1580 ielength = 12;
1581 if (psecuritypriv->wps_phase) {
1582 memcpy(out_ie + ielength, psecuritypriv->wps_ie,
1583 psecuritypriv->wps_ie_len);
1584 ielength += psecuritypriv->wps_ie_len;
1585 }
1586 }
1587 iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
1588 if (iEntry < 0)
1589 return ielength;
1590 if (authmode == _WPA2_IE_ID_) {
1591 out_ie[ielength] = 1;
1592 ielength++;
1593 out_ie[ielength] = 0; /*PMKID count = 0x0100*/
1594 ielength++;
1595 memcpy(&out_ie[ielength],
1596 &psecuritypriv->PMKIDList[iEntry].PMKID, 16);
1597 ielength += 16;
1598 out_ie[13] += 18;/*PMKID length = 2+16*/
1599 }
1600 return ielength;
1601 }
1602
1603 void r8712_init_registrypriv_dev_network(struct _adapter *adapter)
1604 {
1605 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1606 struct eeprom_priv *peepriv = &adapter->eeprompriv;
1607 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1608 u8 *myhwaddr = myid(peepriv);
1609
1610 memcpy(pdev_network->MacAddress, myhwaddr, ETH_ALEN);
1611 memcpy(&pdev_network->Ssid, &pregistrypriv->ssid,
1612 sizeof(struct ndis_802_11_ssid));
1613 pdev_network->Configuration.Length =
1614 sizeof(struct NDIS_802_11_CONFIGURATION);
1615 pdev_network->Configuration.BeaconPeriod = 100;
1616 pdev_network->Configuration.FHConfig.Length = 0;
1617 pdev_network->Configuration.FHConfig.HopPattern = 0;
1618 pdev_network->Configuration.FHConfig.HopSet = 0;
1619 pdev_network->Configuration.FHConfig.DwellTime = 0;
1620 }
1621
1622 void r8712_update_registrypriv_dev_network(struct _adapter *adapter)
1623 {
1624 int sz = 0;
1625 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1626 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1627 struct security_priv *psecuritypriv = &adapter->securitypriv;
1628 struct wlan_network *cur_network = &adapter->mlmepriv.cur_network;
1629
1630 pdev_network->Privacy = cpu_to_le32(psecuritypriv->PrivacyAlgrthm
1631 > 0 ? 1 : 0); /* adhoc no 802.1x */
1632 pdev_network->Rssi = 0;
1633 switch (pregistrypriv->wireless_mode) {
1634 case WIRELESS_11B:
1635 pdev_network->NetworkTypeInUse = cpu_to_le32(Ndis802_11DS);
1636 break;
1637 case WIRELESS_11G:
1638 case WIRELESS_11BG:
1639 pdev_network->NetworkTypeInUse = cpu_to_le32(Ndis802_11OFDM24);
1640 break;
1641 case WIRELESS_11A:
1642 pdev_network->NetworkTypeInUse = cpu_to_le32(Ndis802_11OFDM5);
1643 break;
1644 default:
1645 /* TODO */
1646 break;
1647 }
1648 pdev_network->Configuration.DSConfig = cpu_to_le32(
1649 pregistrypriv->channel);
1650 if (cur_network->network.InfrastructureMode == Ndis802_11IBSS)
1651 pdev_network->Configuration.ATIMWindow = cpu_to_le32(3);
1652 pdev_network->InfrastructureMode = cpu_to_le32(
1653 cur_network->network.InfrastructureMode);
1654 /* 1. Supported rates
1655 * 2. IE
1656 */
1657 sz = r8712_generate_ie(pregistrypriv);
1658 pdev_network->IELength = sz;
1659 pdev_network->Length = r8712_get_wlan_bssid_ex_sz(pdev_network);
1660 }
1661
1662 /*the function is at passive_level*/
1663 void r8712_joinbss_reset(struct _adapter *padapter)
1664 {
1665 int i;
1666 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1667 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1668
1669 /* todo: if you want to do something io/reg/hw setting before join_bss,
1670 * please add code here */
1671 phtpriv->ampdu_enable = false;/*reset to disabled*/
1672 for (i = 0; i < 16; i++)
1673 phtpriv->baddbareq_issued[i] = false;/*reset it*/
1674 if (phtpriv->ht_option) {
1675 /* validate usb rx aggregation */
1676 r8712_write8(padapter, 0x102500D9, 48);/*TH = 48 pages, 6k*/
1677 } else {
1678 /* invalidate usb rx aggregation */
1679 /* TH=1 => means that invalidate usb rx aggregation */
1680 r8712_write8(padapter, 0x102500D9, 1);
1681 }
1682 }
1683
1684 /*the function is >= passive_level*/
1685 unsigned int r8712_restructure_ht_ie(struct _adapter *padapter, u8 *in_ie,
1686 u8 *out_ie, uint in_len, uint *pout_len)
1687 {
1688 u32 ielen, out_len;
1689 unsigned char *p;
1690 struct ieee80211_ht_cap ht_capie;
1691 unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
1692 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1693 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
1694 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1695
1696 phtpriv->ht_option = 0;
1697 p = r8712_get_ie(in_ie + 12, _HT_CAPABILITY_IE_, &ielen, in_len - 12);
1698 if (p && (ielen > 0)) {
1699 if (pqospriv->qos_option == 0) {
1700 out_len = *pout_len;
1701 r8712_set_ie(out_ie + out_len, _VENDOR_SPECIFIC_IE_,
1702 _WMM_IE_Length_, WMM_IE, pout_len);
1703 pqospriv->qos_option = 1;
1704 }
1705 out_len = *pout_len;
1706 memset(&ht_capie, 0, sizeof(struct ieee80211_ht_cap));
1707 ht_capie.cap_info = IEEE80211_HT_CAP_SUP_WIDTH |
1708 IEEE80211_HT_CAP_SGI_20 |
1709 IEEE80211_HT_CAP_SGI_40 |
1710 IEEE80211_HT_CAP_TX_STBC |
1711 IEEE80211_HT_CAP_MAX_AMSDU |
1712 IEEE80211_HT_CAP_DSSSCCK40;
1713 ht_capie.ampdu_params_info = (IEEE80211_HT_CAP_AMPDU_FACTOR &
1714 0x03) | (IEEE80211_HT_CAP_AMPDU_DENSITY & 0x00);
1715 r8712_set_ie(out_ie + out_len, _HT_CAPABILITY_IE_,
1716 sizeof(struct ieee80211_ht_cap),
1717 (unsigned char *)&ht_capie, pout_len);
1718 phtpriv->ht_option = 1;
1719 }
1720 return phtpriv->ht_option;
1721 }
1722
1723 /* the function is > passive_level (in critical_section) */
1724 static void update_ht_cap(struct _adapter *padapter, u8 *pie, uint ie_len)
1725 {
1726 u8 *p, max_ampdu_sz;
1727 int i, len;
1728 struct sta_info *bmc_sta, *psta;
1729 struct ieee80211_ht_cap *pht_capie;
1730 struct recv_reorder_ctrl *preorder_ctrl;
1731 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1732 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1733 struct registry_priv *pregistrypriv = &padapter->registrypriv;
1734 struct wlan_network *pcur_network = &(pmlmepriv->cur_network);
1735
1736 if (!phtpriv->ht_option)
1737 return;
1738 /* maybe needs check if ap supports rx ampdu. */
1739 if (!phtpriv->ampdu_enable &&
1740 (pregistrypriv->ampdu_enable == 1))
1741 phtpriv->ampdu_enable = true;
1742 /*check Max Rx A-MPDU Size*/
1743 len = 0;
1744 p = r8712_get_ie(pie + sizeof(struct NDIS_802_11_FIXED_IEs),
1745 _HT_CAPABILITY_IE_,
1746 &len, ie_len -
1747 sizeof(struct NDIS_802_11_FIXED_IEs));
1748 if (p && len > 0) {
1749 pht_capie = (struct ieee80211_ht_cap *)(p + 2);
1750 max_ampdu_sz = (pht_capie->ampdu_params_info &
1751 IEEE80211_HT_CAP_AMPDU_FACTOR);
1752 /* max_ampdu_sz (kbytes); */
1753 max_ampdu_sz = 1 << (max_ampdu_sz + 3);
1754 phtpriv->rx_ampdu_maxlen = max_ampdu_sz;
1755 }
1756 /* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info
1757 * if A-MPDU Rx is enabled, resetting rx_ordering_ctrl
1758 * wstart_b(indicate_seq) to default value=0xffff
1759 * todo: check if AP can send A-MPDU packets
1760 */
1761 bmc_sta = r8712_get_bcmc_stainfo(padapter);
1762 if (bmc_sta) {
1763 for (i = 0; i < 16; i++) {
1764 preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
1765 preorder_ctrl->indicate_seq = 0xffff;
1766 preorder_ctrl->wend_b = 0xffff;
1767 }
1768 }
1769 psta = r8712_get_stainfo(&padapter->stapriv,
1770 pcur_network->network.MacAddress);
1771 if (psta) {
1772 for (i = 0; i < 16; i++) {
1773 preorder_ctrl = &psta->recvreorder_ctrl[i];
1774 preorder_ctrl->indicate_seq = 0xffff;
1775 preorder_ctrl->wend_b = 0xffff;
1776 }
1777 }
1778 len = 0;
1779 p = r8712_get_ie(pie + sizeof(struct NDIS_802_11_FIXED_IEs),
1780 _HT_ADD_INFO_IE_, &len,
1781 ie_len - sizeof(struct NDIS_802_11_FIXED_IEs));
1782 }
1783
1784 void r8712_issue_addbareq_cmd(struct _adapter *padapter, int priority)
1785 {
1786 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1787 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1788
1789 if ((phtpriv->ht_option == 1) && (phtpriv->ampdu_enable)) {
1790 if (!phtpriv->baddbareq_issued[priority]) {
1791 r8712_addbareq_cmd(padapter, (u8)priority);
1792 phtpriv->baddbareq_issued[priority] = true;
1793 }
1794 }
1795 }
Linux kernel - Deliverables
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