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Merge remote-tracking branch 'staging/staging-next'
[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 = container_of(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 = container_of(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 = container_of(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 = container_of(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 */
408 if (end_of_queue_search(phead, plist)) {
409 if (list_empty(&pmlmepriv->free_bss_pool.queue)) {
410 /* If there are no more slots, expire the oldest */
411 pnetwork = oldest;
412 target->Rssi = (pnetwork->network.Rssi +
413 target->Rssi) / 2;
414 memcpy(&pnetwork->network, target,
415 r8712_get_wlan_bssid_ex_sz(target));
416 pnetwork->last_scanned = jiffies;
417 } else {
418 /* Otherwise just pull from the free list */
419 /* update scan_time */
420 pnetwork = alloc_network(pmlmepriv);
421 if (pnetwork == NULL)
422 return;
423 bssid_ex_sz = r8712_get_wlan_bssid_ex_sz(target);
424 target->Length = bssid_ex_sz;
425 memcpy(&pnetwork->network, target, bssid_ex_sz);
426 list_add_tail(&pnetwork->list, &queue->queue);
427 }
428 } else {
429 /* we have an entry and we are going to update it. But
430 * this entry may be already expired. In this case we
431 * do the same as we found a new net and call the new_net
432 * handler
433 */
434 update_network(&pnetwork->network, target, adapter);
435 pnetwork->last_scanned = jiffies;
436 }
437 }
438
439 static void rtl8711_add_network(struct _adapter *adapter,
440 struct wlan_bssid_ex *pnetwork)
441 {
442 unsigned long irqL;
443 struct mlme_priv *pmlmepriv = &(((struct _adapter *)adapter)->mlmepriv);
444 struct __queue *queue = &pmlmepriv->scanned_queue;
445
446 spin_lock_irqsave(&queue->lock, irqL);
447 update_current_network(adapter, pnetwork);
448 update_scanned_network(adapter, pnetwork);
449 spin_unlock_irqrestore(&queue->lock, irqL);
450 }
451
452 /*select the desired network based on the capability of the (i)bss.
453 * check items: (1) security
454 * (2) network_type
455 * (3) WMM
456 * (4) HT
457 * (5) others
458 */
459 static int is_desired_network(struct _adapter *adapter,
460 struct wlan_network *pnetwork)
461 {
462 u8 wps_ie[512];
463 uint wps_ielen;
464 int bselected = true;
465 struct security_priv *psecuritypriv = &adapter->securitypriv;
466
467 if (psecuritypriv->wps_phase) {
468 if (r8712_get_wps_ie(pnetwork->network.IEs,
469 pnetwork->network.IELength, wps_ie,
470 &wps_ielen))
471 return true;
472 return false;
473 }
474 if ((psecuritypriv->PrivacyAlgrthm != _NO_PRIVACY_) &&
475 (pnetwork->network.Privacy == 0))
476 bselected = false;
477 if (check_fwstate(&adapter->mlmepriv, WIFI_ADHOC_STATE)) {
478 if (pnetwork->network.InfrastructureMode !=
479 adapter->mlmepriv.cur_network.network.
480 InfrastructureMode)
481 bselected = false;
482 }
483 return bselected;
484 }
485
486 /* TODO: Perry : For Power Management */
487 void r8712_atimdone_event_callback(struct _adapter *adapter, u8 *pbuf)
488 {
489 }
490
491 void r8712_survey_event_callback(struct _adapter *adapter, u8 *pbuf)
492 {
493 unsigned long flags;
494 u32 len;
495 struct wlan_bssid_ex *pnetwork;
496 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
497
498 pnetwork = (struct wlan_bssid_ex *)pbuf;
499 #ifdef __BIG_ENDIAN
500 /* endian_convert */
501 pnetwork->Length = le32_to_cpu(pnetwork->Length);
502 pnetwork->Ssid.SsidLength = le32_to_cpu(pnetwork->Ssid.SsidLength);
503 pnetwork->Privacy = le32_to_cpu(pnetwork->Privacy);
504 pnetwork->Rssi = le32_to_cpu(pnetwork->Rssi);
505 pnetwork->NetworkTypeInUse = le32_to_cpu(pnetwork->NetworkTypeInUse);
506 pnetwork->Configuration.ATIMWindow =
507 le32_to_cpu(pnetwork->Configuration.ATIMWindow);
508 pnetwork->Configuration.BeaconPeriod =
509 le32_to_cpu(pnetwork->Configuration.BeaconPeriod);
510 pnetwork->Configuration.DSConfig =
511 le32_to_cpu(pnetwork->Configuration.DSConfig);
512 pnetwork->Configuration.FHConfig.DwellTime =
513 le32_to_cpu(pnetwork->Configuration.FHConfig.DwellTime);
514 pnetwork->Configuration.FHConfig.HopPattern =
515 le32_to_cpu(pnetwork->Configuration.FHConfig.HopPattern);
516 pnetwork->Configuration.FHConfig.HopSet =
517 le32_to_cpu(pnetwork->Configuration.FHConfig.HopSet);
518 pnetwork->Configuration.FHConfig.Length =
519 le32_to_cpu(pnetwork->Configuration.FHConfig.Length);
520 pnetwork->Configuration.Length =
521 le32_to_cpu(pnetwork->Configuration.Length);
522 pnetwork->InfrastructureMode =
523 le32_to_cpu(pnetwork->InfrastructureMode);
524 pnetwork->IELength = le32_to_cpu(pnetwork->IELength);
525 #endif
526 len = r8712_get_wlan_bssid_ex_sz(pnetwork);
527 if (len > sizeof(struct wlan_bssid_ex))
528 return;
529 spin_lock_irqsave(&pmlmepriv->lock2, flags);
530 /* update IBSS_network 's timestamp */
531 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) {
532 if (!memcmp(&(pmlmepriv->cur_network.network.MacAddress),
533 pnetwork->MacAddress, ETH_ALEN)) {
534 struct wlan_network *ibss_wlan = NULL;
535
536 memcpy(pmlmepriv->cur_network.network.IEs,
537 pnetwork->IEs, 8);
538 ibss_wlan = r8712_find_network(
539 &pmlmepriv->scanned_queue,
540 pnetwork->MacAddress);
541 if (ibss_wlan) {
542 memcpy(ibss_wlan->network.IEs,
543 pnetwork->IEs, 8);
544 goto exit;
545 }
546 }
547 }
548 /* lock pmlmepriv->lock when you accessing network_q */
549 if (!check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
550 if (pnetwork->Ssid.Ssid[0] != 0) {
551 rtl8711_add_network(adapter, pnetwork);
552 } else {
553 pnetwork->Ssid.SsidLength = 8;
554 memcpy(pnetwork->Ssid.Ssid, "<hidden>", 8);
555 rtl8711_add_network(adapter, pnetwork);
556 }
557 }
558 exit:
559 spin_unlock_irqrestore(&pmlmepriv->lock2, flags);
560 }
561
562 void r8712_surveydone_event_callback(struct _adapter *adapter, u8 *pbuf)
563 {
564 unsigned long irqL;
565 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
566
567 spin_lock_irqsave(&pmlmepriv->lock, irqL);
568
569 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
570 del_timer(&pmlmepriv->scan_to_timer);
571
572 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
573 }
574
575 if (pmlmepriv->to_join) {
576 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
577 if (!check_fwstate(pmlmepriv, _FW_LINKED)) {
578 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
579
580 if (r8712_select_and_join_from_scan(pmlmepriv)
581 == _SUCCESS)
582 mod_timer(&pmlmepriv->assoc_timer, jiffies +
583 msecs_to_jiffies(MAX_JOIN_TIMEOUT));
584 else {
585 struct wlan_bssid_ex *pdev_network =
586 &(adapter->registrypriv.dev_network);
587 u8 *pibss =
588 adapter->registrypriv.
589 dev_network.MacAddress;
590 pmlmepriv->fw_state ^= _FW_UNDER_SURVEY;
591 memcpy(&pdev_network->Ssid,
592 &pmlmepriv->assoc_ssid,
593 sizeof(struct
594 ndis_802_11_ssid));
595 r8712_update_registrypriv_dev_network
596 (adapter);
597 r8712_generate_random_ibss(pibss);
598 pmlmepriv->fw_state =
599 WIFI_ADHOC_MASTER_STATE;
600 pmlmepriv->to_join = false;
601 }
602 }
603 } else {
604 pmlmepriv->to_join = false;
605 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
606 if (r8712_select_and_join_from_scan(pmlmepriv) ==
607 _SUCCESS)
608 mod_timer(&pmlmepriv->assoc_timer, jiffies +
609 msecs_to_jiffies(MAX_JOIN_TIMEOUT));
610 else
611 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
612 }
613 }
614 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
615 }
616
617 /*
618 *r8712_free_assoc_resources: the caller has to lock pmlmepriv->lock
619 */
620 void r8712_free_assoc_resources(struct _adapter *adapter)
621 {
622 unsigned long irqL;
623 struct wlan_network *pwlan = NULL;
624 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
625 struct sta_priv *pstapriv = &adapter->stapriv;
626 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
627
628 pwlan = r8712_find_network(&pmlmepriv->scanned_queue,
629 tgt_network->network.MacAddress);
630
631 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE)) {
632 struct sta_info *psta;
633
634 psta = r8712_get_stainfo(&adapter->stapriv,
635 tgt_network->network.MacAddress);
636
637 spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
638 r8712_free_stainfo(adapter, psta);
639 spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
640 }
641
642 if (check_fwstate(pmlmepriv,
643 WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE | WIFI_AP_STATE))
644 r8712_free_all_stainfo(adapter);
645 if (pwlan)
646 pwlan->fixed = false;
647
648 if (((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) &&
649 (adapter->stapriv.asoc_sta_count == 1)))
650 free_network_nolock(pmlmepriv, pwlan);
651 }
652
653 /*
654 *r8712_indicate_connect: the caller has to lock pmlmepriv->lock
655 */
656 void r8712_indicate_connect(struct _adapter *padapter)
657 {
658 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
659
660 pmlmepriv->to_join = false;
661 set_fwstate(pmlmepriv, _FW_LINKED);
662 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_LINK);
663 r8712_os_indicate_connect(padapter);
664 if (padapter->registrypriv.power_mgnt > PS_MODE_ACTIVE)
665 mod_timer(&pmlmepriv->dhcp_timer,
666 jiffies + msecs_to_jiffies(60000));
667 }
668
669
670 /*
671 *r8712_ind_disconnect: the caller has to lock pmlmepriv->lock
672 */
673 void r8712_ind_disconnect(struct _adapter *padapter)
674 {
675 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
676
677 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
678 _clr_fwstate_(pmlmepriv, _FW_LINKED);
679 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_NO_LINK);
680 r8712_os_indicate_disconnect(padapter);
681 }
682 if (padapter->pwrctrlpriv.pwr_mode !=
683 padapter->registrypriv.power_mgnt) {
684 del_timer(&pmlmepriv->dhcp_timer);
685 r8712_set_ps_mode(padapter, padapter->registrypriv.power_mgnt,
686 padapter->registrypriv.smart_ps);
687 }
688 }
689
690 /*Notes:
691 *pnetwork : returns from r8712_joinbss_event_callback
692 *ptarget_wlan: found from scanned_queue
693 *if join_res > 0, for (fw_state==WIFI_STATION_STATE), we check if
694 * "ptarget_sta" & "ptarget_wlan" exist.
695 *if join_res > 0, for (fw_state==WIFI_ADHOC_STATE), we only check
696 * if "ptarget_wlan" exist.
697 *if join_res > 0, update "cur_network->network" from
698 * "pnetwork->network" if (ptarget_wlan !=NULL).
699 */
700 void r8712_joinbss_event_callback(struct _adapter *adapter, u8 *pbuf)
701 {
702 unsigned long irqL = 0, irqL2;
703 struct sta_info *ptarget_sta = NULL, *pcur_sta = NULL;
704 struct sta_priv *pstapriv = &adapter->stapriv;
705 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
706 struct wlan_network *cur_network = &pmlmepriv->cur_network;
707 struct wlan_network *pcur_wlan = NULL, *ptarget_wlan = NULL;
708 unsigned int the_same_macaddr = false;
709 struct wlan_network *pnetwork;
710
711 if (sizeof(struct list_head) == 4 * sizeof(u32)) {
712 pnetwork = kmalloc(sizeof(struct wlan_network), GFP_ATOMIC);
713 if (!pnetwork)
714 return;
715 memcpy((u8 *)pnetwork + 16, (u8 *)pbuf + 8,
716 sizeof(struct wlan_network) - 16);
717 } else {
718 pnetwork = (struct wlan_network *)pbuf;
719 }
720
721 #ifdef __BIG_ENDIAN
722 /* endian_convert */
723 pnetwork->join_res = le32_to_cpu(pnetwork->join_res);
724 pnetwork->network_type = le32_to_cpu(pnetwork->network_type);
725 pnetwork->network.Length = le32_to_cpu(pnetwork->network.Length);
726 pnetwork->network.Ssid.SsidLength =
727 le32_to_cpu(pnetwork->network.Ssid.SsidLength);
728 pnetwork->network.Privacy = le32_to_cpu(pnetwork->network.Privacy);
729 pnetwork->network.Rssi = le32_to_cpu(pnetwork->network.Rssi);
730 pnetwork->network.NetworkTypeInUse =
731 le32_to_cpu(pnetwork->network.NetworkTypeInUse);
732 pnetwork->network.Configuration.ATIMWindow =
733 le32_to_cpu(pnetwork->network.Configuration.ATIMWindow);
734 pnetwork->network.Configuration.BeaconPeriod =
735 le32_to_cpu(pnetwork->network.Configuration.BeaconPeriod);
736 pnetwork->network.Configuration.DSConfig =
737 le32_to_cpu(pnetwork->network.Configuration.DSConfig);
738 pnetwork->network.Configuration.FHConfig.DwellTime =
739 le32_to_cpu(pnetwork->network.Configuration.FHConfig.
740 DwellTime);
741 pnetwork->network.Configuration.FHConfig.HopPattern =
742 le32_to_cpu(pnetwork->network.Configuration.
743 FHConfig.HopPattern);
744 pnetwork->network.Configuration.FHConfig.HopSet =
745 le32_to_cpu(pnetwork->network.Configuration.FHConfig.HopSet);
746 pnetwork->network.Configuration.FHConfig.Length =
747 le32_to_cpu(pnetwork->network.Configuration.FHConfig.Length);
748 pnetwork->network.Configuration.Length =
749 le32_to_cpu(pnetwork->network.Configuration.Length);
750 pnetwork->network.InfrastructureMode =
751 le32_to_cpu(pnetwork->network.InfrastructureMode);
752 pnetwork->network.IELength = le32_to_cpu(pnetwork->network.IELength);
753 #endif
754
755 the_same_macaddr = !memcmp(pnetwork->network.MacAddress,
756 cur_network->network.MacAddress, ETH_ALEN);
757 pnetwork->network.Length =
758 r8712_get_wlan_bssid_ex_sz(&pnetwork->network);
759 spin_lock_irqsave(&pmlmepriv->lock, irqL);
760 if (pnetwork->network.Length > sizeof(struct wlan_bssid_ex))
761 goto ignore_joinbss_callback;
762 if (pnetwork->join_res > 0) {
763 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
764 /*s1. find ptarget_wlan*/
765 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
766 if (the_same_macaddr) {
767 ptarget_wlan =
768 r8712_find_network(&pmlmepriv->
769 scanned_queue,
770 cur_network->network.MacAddress);
771 } else {
772 pcur_wlan =
773 r8712_find_network(&pmlmepriv->
774 scanned_queue,
775 cur_network->network.MacAddress);
776 pcur_wlan->fixed = false;
777
778 pcur_sta = r8712_get_stainfo(pstapriv,
779 cur_network->network.MacAddress);
780 spin_lock_irqsave(&pstapriv->
781 sta_hash_lock, irqL2);
782 r8712_free_stainfo(adapter, pcur_sta);
783 spin_unlock_irqrestore(&(pstapriv->
784 sta_hash_lock), irqL2);
785
786 ptarget_wlan =
787 r8712_find_network(&pmlmepriv->
788 scanned_queue,
789 pnetwork->network.
790 MacAddress);
791 if (ptarget_wlan)
792 ptarget_wlan->fixed = true;
793 }
794 } else {
795 ptarget_wlan = r8712_find_network(&pmlmepriv->
796 scanned_queue,
797 pnetwork->network.MacAddress);
798 if (ptarget_wlan)
799 ptarget_wlan->fixed = true;
800 }
801
802 if (ptarget_wlan == NULL) {
803 if (check_fwstate(pmlmepriv,
804 _FW_UNDER_LINKING))
805 pmlmepriv->fw_state ^=
806 _FW_UNDER_LINKING;
807 goto ignore_joinbss_callback;
808 }
809
810 /*s2. find ptarget_sta & update ptarget_sta*/
811 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
812 if (the_same_macaddr) {
813 ptarget_sta =
814 r8712_get_stainfo(pstapriv,
815 pnetwork->network.MacAddress);
816 if (ptarget_sta == NULL)
817 ptarget_sta =
818 r8712_alloc_stainfo(pstapriv,
819 pnetwork->network.MacAddress);
820 } else {
821 ptarget_sta =
822 r8712_alloc_stainfo(pstapriv,
823 pnetwork->network.MacAddress);
824 }
825 if (ptarget_sta) /*update ptarget_sta*/ {
826 ptarget_sta->aid = pnetwork->join_res;
827 ptarget_sta->qos_option = 1;
828 ptarget_sta->mac_id = 5;
829 if (adapter->securitypriv.
830 AuthAlgrthm == 2) {
831 adapter->securitypriv.
832 binstallGrpkey =
833 false;
834 adapter->securitypriv.
835 busetkipkey =
836 false;
837 adapter->securitypriv.
838 bgrpkey_handshake =
839 false;
840 ptarget_sta->ieee8021x_blocked
841 = true;
842 ptarget_sta->XPrivacy =
843 adapter->securitypriv.
844 PrivacyAlgrthm;
845 memset((u8 *)&ptarget_sta->
846 x_UncstKey,
847 0,
848 sizeof(union Keytype));
849 memset((u8 *)&ptarget_sta->
850 tkiprxmickey,
851 0,
852 sizeof(union Keytype));
853 memset((u8 *)&ptarget_sta->
854 tkiptxmickey,
855 0,
856 sizeof(union Keytype));
857 memset((u8 *)&ptarget_sta->
858 txpn, 0,
859 sizeof(union pn48));
860 memset((u8 *)&ptarget_sta->
861 rxpn, 0,
862 sizeof(union pn48));
863 }
864 } else {
865 if (check_fwstate(pmlmepriv,
866 _FW_UNDER_LINKING))
867 pmlmepriv->fw_state ^=
868 _FW_UNDER_LINKING;
869 goto ignore_joinbss_callback;
870 }
871 }
872
873 /*s3. update cur_network & indicate connect*/
874 memcpy(&cur_network->network, &pnetwork->network,
875 pnetwork->network.Length);
876 cur_network->aid = pnetwork->join_res;
877 /*update fw_state will clr _FW_UNDER_LINKING*/
878 switch (pnetwork->network.InfrastructureMode) {
879 case Ndis802_11Infrastructure:
880 pmlmepriv->fw_state = WIFI_STATION_STATE;
881 break;
882 case Ndis802_11IBSS:
883 pmlmepriv->fw_state = WIFI_ADHOC_STATE;
884 break;
885 default:
886 pmlmepriv->fw_state = WIFI_NULL_STATE;
887 break;
888 }
889 r8712_update_protection(adapter,
890 (cur_network->network.IEs) +
891 sizeof(struct NDIS_802_11_FIXED_IEs),
892 (cur_network->network.IELength));
893 /*TODO: update HT_Capability*/
894 update_ht_cap(adapter, cur_network->network.IEs,
895 cur_network->network.IELength);
896 /*indicate connect*/
897 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE))
898 r8712_indicate_connect(adapter);
899 del_timer(&pmlmepriv->assoc_timer);
900 } else {
901 goto ignore_joinbss_callback;
902 }
903 } else {
904 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
905 mod_timer(&pmlmepriv->assoc_timer,
906 jiffies + msecs_to_jiffies(1));
907 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
908 }
909 }
910 ignore_joinbss_callback:
911 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
912 if (sizeof(struct list_head) == 4 * sizeof(u32))
913 kfree(pnetwork);
914 }
915
916 void r8712_stassoc_event_callback(struct _adapter *adapter, u8 *pbuf)
917 {
918 unsigned long irqL;
919 struct sta_info *psta;
920 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
921 struct stassoc_event *pstassoc = (struct stassoc_event *)pbuf;
922
923 /* to do: */
924 if (!r8712_access_ctrl(&adapter->acl_list, pstassoc->macaddr))
925 return;
926 psta = r8712_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
927 if (psta != NULL) {
928 /*the sta have been in sta_info_queue => do nothing
929 *(between drv has received this event before and
930 * fw have not yet to set key to CAM_ENTRY)
931 */
932 return;
933 }
934
935 psta = r8712_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
936 if (psta == NULL)
937 return;
938 /* to do : init sta_info variable */
939 psta->qos_option = 0;
940 psta->mac_id = le32_to_cpu((uint)pstassoc->cam_id);
941 /* psta->aid = (uint)pstassoc->cam_id; */
942
943 if (adapter->securitypriv.AuthAlgrthm == 2)
944 psta->XPrivacy = adapter->securitypriv.PrivacyAlgrthm;
945 psta->ieee8021x_blocked = false;
946 spin_lock_irqsave(&pmlmepriv->lock, irqL);
947 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
948 check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
949 if (adapter->stapriv.asoc_sta_count == 2) {
950 /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
951 r8712_indicate_connect(adapter);
952 }
953 }
954 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
955 }
956
957 void r8712_stadel_event_callback(struct _adapter *adapter, u8 *pbuf)
958 {
959 unsigned long irqL, irqL2;
960 struct sta_info *psta;
961 struct wlan_network *pwlan = NULL;
962 struct wlan_bssid_ex *pdev_network = NULL;
963 u8 *pibss = NULL;
964 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
965 struct stadel_event *pstadel = (struct stadel_event *)pbuf;
966 struct sta_priv *pstapriv = &adapter->stapriv;
967 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
968
969 spin_lock_irqsave(&pmlmepriv->lock, irqL2);
970 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
971 r8712_ind_disconnect(adapter);
972 r8712_free_assoc_resources(adapter);
973 }
974 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE |
975 WIFI_ADHOC_STATE)) {
976 psta = r8712_get_stainfo(&adapter->stapriv, pstadel->macaddr);
977 spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
978 r8712_free_stainfo(adapter, psta);
979 spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
980 if (adapter->stapriv.asoc_sta_count == 1) {
981 /*a sta + bc/mc_stainfo (not Ibss_stainfo) */
982 pwlan = r8712_find_network(&pmlmepriv->scanned_queue,
983 tgt_network->network.MacAddress);
984 if (pwlan) {
985 pwlan->fixed = false;
986 free_network_nolock(pmlmepriv, pwlan);
987 }
988 /*re-create ibss*/
989 pdev_network = &(adapter->registrypriv.dev_network);
990 pibss = adapter->registrypriv.dev_network.MacAddress;
991 memcpy(pdev_network, &tgt_network->network,
992 r8712_get_wlan_bssid_ex_sz(&tgt_network->
993 network));
994 memcpy(&pdev_network->Ssid,
995 &pmlmepriv->assoc_ssid,
996 sizeof(struct ndis_802_11_ssid));
997 r8712_update_registrypriv_dev_network(adapter);
998 r8712_generate_random_ibss(pibss);
999 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1000 _clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
1001 set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
1002 }
1003 }
1004 }
1005 spin_unlock_irqrestore(&pmlmepriv->lock, irqL2);
1006 }
1007
1008 void r8712_cpwm_event_callback(struct _adapter *adapter, u8 *pbuf)
1009 {
1010 struct reportpwrstate_parm *preportpwrstate =
1011 (struct reportpwrstate_parm *)pbuf;
1012
1013 preportpwrstate->state |= (u8)(adapter->pwrctrlpriv.cpwm_tog + 0x80);
1014 r8712_cpwm_int_hdl(adapter, preportpwrstate);
1015 }
1016
1017 /* When the Netgear 3500 AP is with WPA2PSK-AES mode, it will send
1018 * the ADDBA req frame with start seq control = 0 to wifi client after
1019 * the WPA handshake and the seqence number of following data packet
1020 * will be 0. In this case, the Rx reorder sequence is not longer than 0
1021 * and the WiFi client will drop the data with seq number 0.
1022 * So, the 8712 firmware has to inform driver with receiving the
1023 * ADDBA-Req frame so that the driver can reset the
1024 * sequence value of Rx reorder control.
1025 */
1026 void r8712_got_addbareq_event_callback(struct _adapter *adapter, u8 *pbuf)
1027 {
1028 struct ADDBA_Req_Report_parm *pAddbareq_pram =
1029 (struct ADDBA_Req_Report_parm *)pbuf;
1030 struct sta_info *psta;
1031 struct sta_priv *pstapriv = &adapter->stapriv;
1032 struct recv_reorder_ctrl *precvreorder_ctrl = NULL;
1033
1034 psta = r8712_get_stainfo(pstapriv, pAddbareq_pram->MacAddress);
1035 if (psta) {
1036 precvreorder_ctrl =
1037 &psta->recvreorder_ctrl[pAddbareq_pram->tid];
1038 /* set the indicate_seq to 0xffff so that the rx reorder
1039 * can store any following data packet.
1040 */
1041 precvreorder_ctrl->indicate_seq = 0xffff;
1042 }
1043 }
1044
1045 void r8712_wpspbc_event_callback(struct _adapter *adapter, u8 *pbuf)
1046 {
1047 if (!adapter->securitypriv.wps_hw_pbc_pressed)
1048 adapter->securitypriv.wps_hw_pbc_pressed = true;
1049 }
1050
1051 void _r8712_sitesurvey_ctrl_handler(struct _adapter *adapter)
1052 {
1053 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1054 struct sitesurvey_ctrl *psitesurveyctrl = &pmlmepriv->sitesurveyctrl;
1055 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1056 u64 current_tx_pkts;
1057 uint current_rx_pkts;
1058
1059 current_tx_pkts = (adapter->xmitpriv.tx_pkts) -
1060 (psitesurveyctrl->last_tx_pkts);
1061 current_rx_pkts = (adapter->recvpriv.rx_pkts) -
1062 (psitesurveyctrl->last_rx_pkts);
1063 psitesurveyctrl->last_tx_pkts = adapter->xmitpriv.tx_pkts;
1064 psitesurveyctrl->last_rx_pkts = adapter->recvpriv.rx_pkts;
1065 if ((current_tx_pkts > pregistrypriv->busy_thresh) ||
1066 (current_rx_pkts > pregistrypriv->busy_thresh))
1067 psitesurveyctrl->traffic_busy = true;
1068 else
1069 psitesurveyctrl->traffic_busy = false;
1070 }
1071
1072 void _r8712_join_timeout_handler(struct _adapter *adapter)
1073 {
1074 unsigned long irqL;
1075 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1076
1077 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1078 return;
1079 spin_lock_irqsave(&pmlmepriv->lock, irqL);
1080 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1081 pmlmepriv->to_join = false;
1082 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1083 r8712_os_indicate_disconnect(adapter);
1084 _clr_fwstate_(pmlmepriv, _FW_LINKED);
1085 }
1086 if (adapter->pwrctrlpriv.pwr_mode != adapter->registrypriv.power_mgnt) {
1087 r8712_set_ps_mode(adapter, adapter->registrypriv.power_mgnt,
1088 adapter->registrypriv.smart_ps);
1089 }
1090 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
1091 }
1092
1093 void r8712_scan_timeout_handler (struct _adapter *adapter)
1094 {
1095 unsigned long irqL;
1096 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1097
1098 spin_lock_irqsave(&pmlmepriv->lock, irqL);
1099 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
1100 pmlmepriv->to_join = false; /* scan fail, so clear to_join flag */
1101 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
1102 }
1103
1104 void _r8712_dhcp_timeout_handler (struct _adapter *adapter)
1105 {
1106 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1107 return;
1108 if (adapter->pwrctrlpriv.pwr_mode != adapter->registrypriv.power_mgnt)
1109 r8712_set_ps_mode(adapter, adapter->registrypriv.power_mgnt,
1110 adapter->registrypriv.smart_ps);
1111 }
1112
1113 void _r8712_wdg_timeout_handler(struct _adapter *adapter)
1114 {
1115 r8712_wdg_wk_cmd(adapter);
1116 }
1117
1118 int r8712_select_and_join_from_scan(struct mlme_priv *pmlmepriv)
1119 {
1120 struct list_head *phead;
1121 unsigned char *dst_ssid, *src_ssid;
1122 struct _adapter *adapter;
1123 struct __queue *queue = NULL;
1124 struct wlan_network *pnetwork = NULL;
1125 struct wlan_network *pnetwork_max_rssi = NULL;
1126
1127 adapter = (struct _adapter *)pmlmepriv->nic_hdl;
1128 queue = &pmlmepriv->scanned_queue;
1129 phead = &queue->queue;
1130 pmlmepriv->pscanned = phead->next;
1131 while (1) {
1132 if (end_of_queue_search(phead, pmlmepriv->pscanned)) {
1133 if ((pmlmepriv->assoc_by_rssi) &&
1134 (pnetwork_max_rssi != NULL)) {
1135 pnetwork = pnetwork_max_rssi;
1136 goto ask_for_joinbss;
1137 }
1138 return _FAIL;
1139 }
1140 pnetwork = container_of(pmlmepriv->pscanned,
1141 struct wlan_network, list);
1142 if (pnetwork == NULL)
1143 return _FAIL;
1144 pmlmepriv->pscanned = pmlmepriv->pscanned->next;
1145 if (pmlmepriv->assoc_by_bssid) {
1146 dst_ssid = pnetwork->network.MacAddress;
1147 src_ssid = pmlmepriv->assoc_bssid;
1148 if (!memcmp(dst_ssid, src_ssid, ETH_ALEN)) {
1149 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1150 if (is_same_network(&pmlmepriv->
1151 cur_network.network,
1152 &pnetwork->network)) {
1153 _clr_fwstate_(pmlmepriv,
1154 _FW_UNDER_LINKING);
1155 /*r8712_indicate_connect again*/
1156 r8712_indicate_connect(adapter);
1157 return 2;
1158 }
1159 r8712_disassoc_cmd(adapter);
1160 r8712_ind_disconnect(adapter);
1161 r8712_free_assoc_resources(adapter);
1162 }
1163 goto ask_for_joinbss;
1164 }
1165 } else if (pmlmepriv->assoc_ssid.SsidLength == 0) {
1166 goto ask_for_joinbss;
1167 }
1168 dst_ssid = pnetwork->network.Ssid.Ssid;
1169 src_ssid = pmlmepriv->assoc_ssid.Ssid;
1170 if ((pnetwork->network.Ssid.SsidLength ==
1171 pmlmepriv->assoc_ssid.SsidLength) &&
1172 (!memcmp(dst_ssid, src_ssid,
1173 pmlmepriv->assoc_ssid.SsidLength))) {
1174 if (pmlmepriv->assoc_by_rssi) {
1175 /* if the ssid is the same, select the bss
1176 * which has the max rssi
1177 */
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 }
1185 } else if (is_desired_network(adapter, pnetwork)) {
1186 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1187 r8712_disassoc_cmd(adapter);
1188 r8712_free_assoc_resources(adapter);
1189 }
1190 goto ask_for_joinbss;
1191 }
1192 }
1193 }
1194
1195 ask_for_joinbss:
1196 return r8712_joinbss_cmd(adapter, pnetwork);
1197 }
1198
1199 sint r8712_set_auth(struct _adapter *adapter,
1200 struct security_priv *psecuritypriv)
1201 {
1202 struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
1203 struct cmd_obj *pcmd;
1204 struct setauth_parm *psetauthparm;
1205
1206 pcmd = kmalloc(sizeof(*pcmd), GFP_ATOMIC);
1207 if (!pcmd)
1208 return _FAIL;
1209
1210 psetauthparm = kzalloc(sizeof(*psetauthparm), GFP_ATOMIC);
1211 if (!psetauthparm) {
1212 kfree(pcmd);
1213 return _FAIL;
1214 }
1215 psetauthparm->mode = (u8)psecuritypriv->AuthAlgrthm;
1216 pcmd->cmdcode = _SetAuth_CMD_;
1217 pcmd->parmbuf = (unsigned char *)psetauthparm;
1218 pcmd->cmdsz = sizeof(struct setauth_parm);
1219 pcmd->rsp = NULL;
1220 pcmd->rspsz = 0;
1221 INIT_LIST_HEAD(&pcmd->list);
1222 r8712_enqueue_cmd(pcmdpriv, pcmd);
1223 return _SUCCESS;
1224 }
1225
1226 sint r8712_set_key(struct _adapter *adapter,
1227 struct security_priv *psecuritypriv,
1228 sint keyid)
1229 {
1230 struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
1231 struct cmd_obj *pcmd;
1232 struct setkey_parm *psetkeyparm;
1233 u8 keylen;
1234 sint ret = _SUCCESS;
1235
1236 pcmd = kmalloc(sizeof(*pcmd), GFP_ATOMIC);
1237 if (!pcmd)
1238 return _FAIL;
1239 psetkeyparm = kzalloc(sizeof(*psetkeyparm), GFP_ATOMIC);
1240 if (!psetkeyparm) {
1241 ret = _FAIL;
1242 goto err_free_cmd;
1243 }
1244 if (psecuritypriv->AuthAlgrthm == 2) { /* 802.1X */
1245 psetkeyparm->algorithm =
1246 (u8)psecuritypriv->XGrpPrivacy;
1247 } else { /* WEP */
1248 psetkeyparm->algorithm =
1249 (u8)psecuritypriv->PrivacyAlgrthm;
1250 }
1251 psetkeyparm->keyid = (u8)keyid;
1252
1253 switch (psetkeyparm->algorithm) {
1254 case _WEP40_:
1255 keylen = 5;
1256 memcpy(psetkeyparm->key,
1257 psecuritypriv->DefKey[keyid].skey, keylen);
1258 break;
1259 case _WEP104_:
1260 keylen = 13;
1261 memcpy(psetkeyparm->key,
1262 psecuritypriv->DefKey[keyid].skey, keylen);
1263 break;
1264 case _TKIP_:
1265 if (keyid < 1 || keyid > 2) {
1266 ret = _FAIL;
1267 goto err_free_parm;
1268 }
1269 keylen = 16;
1270 memcpy(psetkeyparm->key,
1271 &psecuritypriv->XGrpKey[keyid - 1], keylen);
1272 psetkeyparm->grpkey = 1;
1273 break;
1274 case _AES_:
1275 if (keyid < 1 || keyid > 2) {
1276 ret = _FAIL;
1277 goto err_free_parm;
1278 }
1279 keylen = 16;
1280 memcpy(psetkeyparm->key,
1281 &psecuritypriv->XGrpKey[keyid - 1], keylen);
1282 psetkeyparm->grpkey = 1;
1283 break;
1284 default:
1285 ret = _FAIL;
1286 goto err_free_parm;
1287 }
1288 pcmd->cmdcode = _SetKey_CMD_;
1289 pcmd->parmbuf = (u8 *)psetkeyparm;
1290 pcmd->cmdsz = (sizeof(struct setkey_parm));
1291 pcmd->rsp = NULL;
1292 pcmd->rspsz = 0;
1293 INIT_LIST_HEAD(&pcmd->list);
1294 r8712_enqueue_cmd(pcmdpriv, pcmd);
1295 return ret;
1296
1297 err_free_parm:
1298 kfree(psetkeyparm);
1299 err_free_cmd:
1300 kfree(pcmd);
1301 return ret;
1302 }
1303
1304 /* adjust IEs for r8712_joinbss_cmd in WMM */
1305 int r8712_restruct_wmm_ie(struct _adapter *adapter, u8 *in_ie, u8 *out_ie,
1306 uint in_len, uint initial_out_len)
1307 {
1308 unsigned int ielength = 0;
1309 unsigned int i, j;
1310
1311 i = 12; /* after the fixed IE */
1312 while (i < in_len) {
1313 ielength = initial_out_len;
1314 if (in_ie[i] == 0xDD && in_ie[i + 2] == 0x00 &&
1315 in_ie[i + 3] == 0x50 && in_ie[i + 4] == 0xF2 &&
1316 in_ie[i + 5] == 0x02 && i + 5 < in_len) {
1317 /*WMM element ID and OUI*/
1318 for (j = i; j < i + 9; j++) {
1319 out_ie[ielength] = in_ie[j];
1320 ielength++;
1321 }
1322 out_ie[initial_out_len + 1] = 0x07;
1323 out_ie[initial_out_len + 6] = 0x00;
1324 out_ie[initial_out_len + 8] = 0x00;
1325 break;
1326 }
1327 i += (in_ie[i + 1] + 2); /* to the next IE element */
1328 }
1329 return ielength;
1330 }
1331
1332 /*
1333 * Ported from 8185: IsInPreAuthKeyList().
1334 *
1335 * Search by BSSID,
1336 * Return Value:
1337 * -1 :if there is no pre-auth key in the table
1338 * >=0 :if there is pre-auth key, and return the entry id
1339 */
1340 static int SecIsInPMKIDList(struct _adapter *Adapter, u8 *bssid)
1341 {
1342 struct security_priv *psecuritypriv = &Adapter->securitypriv;
1343 int i = 0;
1344
1345 do {
1346 if (psecuritypriv->PMKIDList[i].bUsed &&
1347 (!memcmp(psecuritypriv->PMKIDList[i].Bssid,
1348 bssid, ETH_ALEN)))
1349 break;
1350 else
1351 i++;
1352 } while (i < NUM_PMKID_CACHE);
1353
1354 if (i == NUM_PMKID_CACHE) {
1355 i = -1; /* Could not find. */
1356 } else {
1357 ; /* There is one Pre-Authentication Key for the
1358 * specific BSSID.
1359 */
1360 }
1361 return i;
1362 }
1363
1364 sint r8712_restruct_sec_ie(struct _adapter *adapter, u8 *in_ie,
1365 u8 *out_ie, uint in_len)
1366 {
1367 u8 authmode = 0, match;
1368 u8 sec_ie[255], uncst_oui[4], bkup_ie[255];
1369 u8 wpa_oui[4] = {0x0, 0x50, 0xf2, 0x01};
1370 uint ielength, cnt, remove_cnt;
1371 int iEntry;
1372 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1373 struct security_priv *psecuritypriv = &adapter->securitypriv;
1374 uint ndisauthmode = psecuritypriv->ndisauthtype;
1375 uint ndissecuritytype = psecuritypriv->ndisencryptstatus;
1376
1377 if ((ndisauthmode == Ndis802_11AuthModeWPA) ||
1378 (ndisauthmode == Ndis802_11AuthModeWPAPSK)) {
1379 authmode = _WPA_IE_ID_;
1380 uncst_oui[0] = 0x0;
1381 uncst_oui[1] = 0x50;
1382 uncst_oui[2] = 0xf2;
1383 }
1384 if ((ndisauthmode == Ndis802_11AuthModeWPA2) ||
1385 (ndisauthmode == Ndis802_11AuthModeWPA2PSK)) {
1386 authmode = _WPA2_IE_ID_;
1387 uncst_oui[0] = 0x0;
1388 uncst_oui[1] = 0x0f;
1389 uncst_oui[2] = 0xac;
1390 }
1391 switch (ndissecuritytype) {
1392 case Ndis802_11Encryption1Enabled:
1393 case Ndis802_11Encryption1KeyAbsent:
1394 uncst_oui[3] = 0x1;
1395 break;
1396 case Ndis802_11Encryption2Enabled:
1397 case Ndis802_11Encryption2KeyAbsent:
1398 uncst_oui[3] = 0x2;
1399 break;
1400 case Ndis802_11Encryption3Enabled:
1401 case Ndis802_11Encryption3KeyAbsent:
1402 uncst_oui[3] = 0x4;
1403 break;
1404 default:
1405 break;
1406 }
1407 /*Search required WPA or WPA2 IE and copy to sec_ie[] */
1408 cnt = 12;
1409 match = false;
1410 while (cnt < in_len) {
1411 if (in_ie[cnt] == authmode) {
1412 if ((authmode == _WPA_IE_ID_) &&
1413 (!memcmp(&in_ie[cnt + 2], &wpa_oui[0], 4))) {
1414 memcpy(&sec_ie[0], &in_ie[cnt],
1415 in_ie[cnt + 1] + 2);
1416 match = true;
1417 break;
1418 }
1419 if (authmode == _WPA2_IE_ID_) {
1420 memcpy(&sec_ie[0], &in_ie[cnt],
1421 in_ie[cnt + 1] + 2);
1422 match = true;
1423 break;
1424 }
1425 if (((authmode == _WPA_IE_ID_) &&
1426 (!memcmp(&in_ie[cnt + 2], &wpa_oui[0], 4))) ||
1427 (authmode == _WPA2_IE_ID_))
1428 memcpy(&bkup_ie[0], &in_ie[cnt],
1429 in_ie[cnt + 1] + 2);
1430 }
1431 cnt += in_ie[cnt + 1] + 2; /*get next*/
1432 }
1433 /*restruct WPA IE or WPA2 IE in sec_ie[] */
1434 if (match) {
1435 if (sec_ie[0] == _WPA_IE_ID_) {
1436 /* parsing SSN IE to select required encryption
1437 * algorithm, and set the bc/mc encryption algorithm
1438 */
1439 while (true) {
1440 /*check wpa_oui tag*/
1441 if (memcmp(&sec_ie[2], &wpa_oui[0], 4)) {
1442 match = false;
1443 break;
1444 }
1445 if ((sec_ie[6] != 0x01) || (sec_ie[7] != 0x0)) {
1446 /*IE Ver error*/
1447 match = false;
1448 break;
1449 }
1450 if (!memcmp(&sec_ie[8], &wpa_oui[0], 3)) {
1451 /* get bc/mc encryption type (group
1452 * key type)
1453 */
1454 switch (sec_ie[11]) {
1455 case 0x0: /*none*/
1456 psecuritypriv->XGrpPrivacy =
1457 _NO_PRIVACY_;
1458 break;
1459 case 0x1: /*WEP_40*/
1460 psecuritypriv->XGrpPrivacy =
1461 _WEP40_;
1462 break;
1463 case 0x2: /*TKIP*/
1464 psecuritypriv->XGrpPrivacy =
1465 _TKIP_;
1466 break;
1467 case 0x3: /*AESCCMP*/
1468 case 0x4:
1469 psecuritypriv->XGrpPrivacy =
1470 _AES_;
1471 break;
1472 case 0x5: /*WEP_104*/
1473 psecuritypriv->XGrpPrivacy =
1474 _WEP104_;
1475 break;
1476 }
1477 } else {
1478 match = false;
1479 break;
1480 }
1481 if (sec_ie[12] == 0x01) {
1482 /*check the unicast encryption type*/
1483 if (memcmp(&sec_ie[14],
1484 &uncst_oui[0], 4)) {
1485 match = false;
1486 break;
1487
1488 } /*else the uncst_oui is match*/
1489 } else { /*mixed mode, unicast_enc_type > 1*/
1490 /*select the uncst_oui and remove
1491 * the other uncst_oui
1492 */
1493 cnt = sec_ie[12];
1494 remove_cnt = (cnt - 1) * 4;
1495 sec_ie[12] = 0x01;
1496 memcpy(&sec_ie[14], &uncst_oui[0], 4);
1497 /*remove the other unicast suit*/
1498 memcpy(&sec_ie[18],
1499 &sec_ie[18 + remove_cnt],
1500 sec_ie[1] - 18 + 2 -
1501 remove_cnt);
1502 sec_ie[1] = sec_ie[1] - remove_cnt;
1503 }
1504 break;
1505 }
1506 }
1507 if (authmode == _WPA2_IE_ID_) {
1508 /* parsing RSN IE to select required encryption
1509 * algorithm, and set the bc/mc encryption algorithm
1510 */
1511 while (true) {
1512 if ((sec_ie[2] != 0x01) || (sec_ie[3] != 0x0)) {
1513 /*IE Ver error*/
1514 match = false;
1515 break;
1516 }
1517 if (!memcmp(&sec_ie[4], &uncst_oui[0], 3)) {
1518 /*get bc/mc encryption type*/
1519 switch (sec_ie[7]) {
1520 case 0x1: /*WEP_40*/
1521 psecuritypriv->XGrpPrivacy =
1522 _WEP40_;
1523 break;
1524 case 0x2: /*TKIP*/
1525 psecuritypriv->XGrpPrivacy =
1526 _TKIP_;
1527 break;
1528 case 0x4: /*AESWRAP*/
1529 psecuritypriv->XGrpPrivacy =
1530 _AES_;
1531 break;
1532 case 0x5: /*WEP_104*/
1533 psecuritypriv->XGrpPrivacy =
1534 _WEP104_;
1535 break;
1536 default: /*one*/
1537 psecuritypriv->XGrpPrivacy =
1538 _NO_PRIVACY_;
1539 break;
1540 }
1541 } else {
1542 match = false;
1543 break;
1544 }
1545 if (sec_ie[8] == 0x01) {
1546 /*check the unicast encryption type*/
1547 if (memcmp(&sec_ie[10],
1548 &uncst_oui[0], 4)) {
1549 match = false;
1550 break;
1551 } /*else the uncst_oui is match*/
1552 } else { /*mixed mode, unicast_enc_type > 1*/
1553 /*select the uncst_oui and remove the
1554 * other uncst_oui
1555 */
1556 cnt = sec_ie[8];
1557 remove_cnt = (cnt - 1) * 4;
1558 sec_ie[8] = 0x01;
1559 memcpy(&sec_ie[10], &uncst_oui[0], 4);
1560 /*remove the other unicast suit*/
1561 memcpy(&sec_ie[14],
1562 &sec_ie[14 + remove_cnt],
1563 (sec_ie[1] - 14 + 2 -
1564 remove_cnt));
1565 sec_ie[1] = sec_ie[1] - remove_cnt;
1566 }
1567 break;
1568 }
1569 }
1570 }
1571 if ((authmode == _WPA_IE_ID_) || (authmode == _WPA2_IE_ID_)) {
1572 /*copy fixed ie*/
1573 memcpy(out_ie, in_ie, 12);
1574 ielength = 12;
1575 /*copy RSN or SSN*/
1576 if (match) {
1577 memcpy(&out_ie[ielength], &sec_ie[0], sec_ie[1] + 2);
1578 ielength += sec_ie[1] + 2;
1579 if (authmode == _WPA2_IE_ID_) {
1580 /*the Pre-Authentication bit should be zero*/
1581 out_ie[ielength - 1] = 0;
1582 out_ie[ielength - 2] = 0;
1583 }
1584 r8712_report_sec_ie(adapter, authmode, sec_ie);
1585 }
1586 } else {
1587 /*copy fixed ie only*/
1588 memcpy(out_ie, in_ie, 12);
1589 ielength = 12;
1590 if (psecuritypriv->wps_phase) {
1591 memcpy(out_ie + ielength, psecuritypriv->wps_ie,
1592 psecuritypriv->wps_ie_len);
1593 ielength += psecuritypriv->wps_ie_len;
1594 }
1595 }
1596 iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
1597 if (iEntry < 0)
1598 return ielength;
1599 if (authmode == _WPA2_IE_ID_) {
1600 out_ie[ielength] = 1;
1601 ielength++;
1602 out_ie[ielength] = 0; /*PMKID count = 0x0100*/
1603 ielength++;
1604 memcpy(&out_ie[ielength],
1605 &psecuritypriv->PMKIDList[iEntry].PMKID, 16);
1606 ielength += 16;
1607 out_ie[13] += 18;/*PMKID length = 2+16*/
1608 }
1609 return ielength;
1610 }
1611
1612 void r8712_init_registrypriv_dev_network(struct _adapter *adapter)
1613 {
1614 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1615 struct eeprom_priv *peepriv = &adapter->eeprompriv;
1616 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1617 u8 *myhwaddr = myid(peepriv);
1618
1619 memcpy(pdev_network->MacAddress, myhwaddr, ETH_ALEN);
1620 memcpy(&pdev_network->Ssid, &pregistrypriv->ssid,
1621 sizeof(struct ndis_802_11_ssid));
1622 pdev_network->Configuration.Length =
1623 sizeof(struct NDIS_802_11_CONFIGURATION);
1624 pdev_network->Configuration.BeaconPeriod = 100;
1625 pdev_network->Configuration.FHConfig.Length = 0;
1626 pdev_network->Configuration.FHConfig.HopPattern = 0;
1627 pdev_network->Configuration.FHConfig.HopSet = 0;
1628 pdev_network->Configuration.FHConfig.DwellTime = 0;
1629 }
1630
1631 void r8712_update_registrypriv_dev_network(struct _adapter *adapter)
1632 {
1633 int sz = 0;
1634 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1635 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1636 struct security_priv *psecuritypriv = &adapter->securitypriv;
1637 struct wlan_network *cur_network = &adapter->mlmepriv.cur_network;
1638
1639 pdev_network->Privacy = cpu_to_le32(psecuritypriv->PrivacyAlgrthm
1640 > 0 ? 1 : 0); /* adhoc no 802.1x */
1641 pdev_network->Rssi = 0;
1642 switch (pregistrypriv->wireless_mode) {
1643 case WIRELESS_11B:
1644 pdev_network->NetworkTypeInUse = cpu_to_le32(Ndis802_11DS);
1645 break;
1646 case WIRELESS_11G:
1647 case WIRELESS_11BG:
1648 pdev_network->NetworkTypeInUse = cpu_to_le32(Ndis802_11OFDM24);
1649 break;
1650 case WIRELESS_11A:
1651 pdev_network->NetworkTypeInUse = cpu_to_le32(Ndis802_11OFDM5);
1652 break;
1653 default:
1654 /* TODO */
1655 break;
1656 }
1657 pdev_network->Configuration.DSConfig = cpu_to_le32(
1658 pregistrypriv->channel);
1659 if (cur_network->network.InfrastructureMode == Ndis802_11IBSS)
1660 pdev_network->Configuration.ATIMWindow = cpu_to_le32(3);
1661 pdev_network->InfrastructureMode = cpu_to_le32(
1662 cur_network->network.InfrastructureMode);
1663 /* 1. Supported rates
1664 * 2. IE
1665 */
1666 sz = r8712_generate_ie(pregistrypriv);
1667 pdev_network->IELength = sz;
1668 pdev_network->Length = r8712_get_wlan_bssid_ex_sz(pdev_network);
1669 }
1670
1671 /*the function is at passive_level*/
1672 void r8712_joinbss_reset(struct _adapter *padapter)
1673 {
1674 int i;
1675 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1676 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1677
1678 /* todo: if you want to do something io/reg/hw setting before join_bss,
1679 * please add code here
1680 */
1681 phtpriv->ampdu_enable = false;/*reset to disabled*/
1682 for (i = 0; i < 16; i++)
1683 phtpriv->baddbareq_issued[i] = false;/*reset it*/
1684 if (phtpriv->ht_option) {
1685 /* validate usb rx aggregation */
1686 r8712_write8(padapter, 0x102500D9, 48);/*TH = 48 pages, 6k*/
1687 } else {
1688 /* invalidate usb rx aggregation */
1689 /* TH=1 => means that invalidate usb rx aggregation */
1690 r8712_write8(padapter, 0x102500D9, 1);
1691 }
1692 }
1693
1694 /*the function is >= passive_level*/
1695 unsigned int r8712_restructure_ht_ie(struct _adapter *padapter, u8 *in_ie,
1696 u8 *out_ie, uint in_len, uint *pout_len)
1697 {
1698 u32 ielen, out_len;
1699 unsigned char *p;
1700 struct ieee80211_ht_cap ht_capie;
1701 unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
1702 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1703 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
1704 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1705
1706 phtpriv->ht_option = 0;
1707 p = r8712_get_ie(in_ie + 12, _HT_CAPABILITY_IE_, &ielen, in_len - 12);
1708 if (p && (ielen > 0)) {
1709 if (pqospriv->qos_option == 0) {
1710 out_len = *pout_len;
1711 r8712_set_ie(out_ie + out_len, _VENDOR_SPECIFIC_IE_,
1712 _WMM_IE_Length_, WMM_IE, pout_len);
1713 pqospriv->qos_option = 1;
1714 }
1715 out_len = *pout_len;
1716 memset(&ht_capie, 0, sizeof(struct ieee80211_ht_cap));
1717 ht_capie.cap_info = IEEE80211_HT_CAP_SUP_WIDTH |
1718 IEEE80211_HT_CAP_SGI_20 |
1719 IEEE80211_HT_CAP_SGI_40 |
1720 IEEE80211_HT_CAP_TX_STBC |
1721 IEEE80211_HT_CAP_MAX_AMSDU |
1722 IEEE80211_HT_CAP_DSSSCCK40;
1723 ht_capie.ampdu_params_info = (IEEE80211_HT_CAP_AMPDU_FACTOR &
1724 0x03) | (IEEE80211_HT_CAP_AMPDU_DENSITY & 0x00);
1725 r8712_set_ie(out_ie + out_len, _HT_CAPABILITY_IE_,
1726 sizeof(struct ieee80211_ht_cap),
1727 (unsigned char *)&ht_capie, pout_len);
1728 phtpriv->ht_option = 1;
1729 }
1730 return phtpriv->ht_option;
1731 }
1732
1733 /* the function is > passive_level (in critical_section) */
1734 static void update_ht_cap(struct _adapter *padapter, u8 *pie, uint ie_len)
1735 {
1736 u8 *p, max_ampdu_sz;
1737 int i, len;
1738 struct sta_info *bmc_sta, *psta;
1739 struct ieee80211_ht_cap *pht_capie;
1740 struct recv_reorder_ctrl *preorder_ctrl;
1741 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1742 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1743 struct registry_priv *pregistrypriv = &padapter->registrypriv;
1744 struct wlan_network *pcur_network = &(pmlmepriv->cur_network);
1745
1746 if (!phtpriv->ht_option)
1747 return;
1748 /* maybe needs check if ap supports rx ampdu. */
1749 if (!phtpriv->ampdu_enable &&
1750 (pregistrypriv->ampdu_enable == 1))
1751 phtpriv->ampdu_enable = true;
1752 /*check Max Rx A-MPDU Size*/
1753 len = 0;
1754 p = r8712_get_ie(pie + sizeof(struct NDIS_802_11_FIXED_IEs),
1755 _HT_CAPABILITY_IE_,
1756 &len, ie_len -
1757 sizeof(struct NDIS_802_11_FIXED_IEs));
1758 if (p && len > 0) {
1759 pht_capie = (struct ieee80211_ht_cap *)(p + 2);
1760 max_ampdu_sz = (pht_capie->ampdu_params_info &
1761 IEEE80211_HT_CAP_AMPDU_FACTOR);
1762 /* max_ampdu_sz (kbytes); */
1763 max_ampdu_sz = 1 << (max_ampdu_sz + 3);
1764 phtpriv->rx_ampdu_maxlen = max_ampdu_sz;
1765 }
1766 /* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info
1767 * if A-MPDU Rx is enabled, resetting rx_ordering_ctrl
1768 * wstart_b(indicate_seq) to default value=0xffff
1769 * todo: check if AP can send A-MPDU packets
1770 */
1771 bmc_sta = r8712_get_bcmc_stainfo(padapter);
1772 if (bmc_sta) {
1773 for (i = 0; i < 16; i++) {
1774 preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
1775 preorder_ctrl->indicate_seq = 0xffff;
1776 preorder_ctrl->wend_b = 0xffff;
1777 }
1778 }
1779 psta = r8712_get_stainfo(&padapter->stapriv,
1780 pcur_network->network.MacAddress);
1781 if (psta) {
1782 for (i = 0; i < 16; i++) {
1783 preorder_ctrl = &psta->recvreorder_ctrl[i];
1784 preorder_ctrl->indicate_seq = 0xffff;
1785 preorder_ctrl->wend_b = 0xffff;
1786 }
1787 }
1788 len = 0;
1789 p = r8712_get_ie(pie + sizeof(struct NDIS_802_11_FIXED_IEs),
1790 _HT_ADD_INFO_IE_, &len,
1791 ie_len - sizeof(struct NDIS_802_11_FIXED_IEs));
1792 }
1793
1794 void r8712_issue_addbareq_cmd(struct _adapter *padapter, int priority)
1795 {
1796 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1797 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1798
1799 if ((phtpriv->ht_option == 1) && (phtpriv->ampdu_enable)) {
1800 if (!phtpriv->baddbareq_issued[priority]) {
1801 r8712_addbareq_cmd(padapter, (u8)priority);
1802 phtpriv->baddbareq_issued[priority] = true;
1803 }
1804 }
1805 }
Linux kernel - Deliverables
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