1 /******************************************************************************
2 * rtl871x_mlme.c
3 *
4 * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
5 * Linux device driver for RTL8192SU
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of version 2 of the GNU General Public License as
9 * published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
19 *
20 * Modifications for inclusion into the Linux staging tree are
21 * Copyright(c) 2010 Larry Finger. All rights reserved.
22 *
23 * Contact information:
24 * WLAN FAE <wlanfae@realtek.com>
25 * Larry Finger <Larry.Finger@lwfinger.net>
26 *
27 ******************************************************************************/
28
29 #define _RTL871X_MLME_C_
30
31 #include <linux/etherdevice.h>
32
33 #include "osdep_service.h"
34 #include "drv_types.h"
35 #include "recv_osdep.h"
36 #include "xmit_osdep.h"
37 #include "mlme_osdep.h"
38 #include "sta_info.h"
39 #include "wifi.h"
40 #include "wlan_bssdef.h"
41
42 static void update_ht_cap(struct _adapter *padapter, u8 *pie, uint ie_len);
43
_init_mlme_priv(struct _adapter * padapter)44 static sint _init_mlme_priv(struct _adapter *padapter)
45 {
46 sint i;
47 u8 *pbuf;
48 struct wlan_network *pnetwork;
49 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
50
51 memset((u8 *)pmlmepriv, 0, sizeof(struct mlme_priv));
52 pmlmepriv->nic_hdl = (u8 *)padapter;
53 pmlmepriv->pscanned = NULL;
54 pmlmepriv->fw_state = 0;
55 pmlmepriv->cur_network.network.InfrastructureMode =
56 Ndis802_11AutoUnknown;
57 /* Maybe someday we should rename this variable to "active_mode"(Jeff)*/
58 pmlmepriv->passive_mode = 1; /* 1: active, 0: passive. */
59 spin_lock_init(&(pmlmepriv->lock));
60 spin_lock_init(&(pmlmepriv->lock2));
61 _init_queue(&(pmlmepriv->free_bss_pool));
62 _init_queue(&(pmlmepriv->scanned_queue));
63 set_scanned_network_val(pmlmepriv, 0);
64 memset(&pmlmepriv->assoc_ssid, 0, sizeof(struct ndis_802_11_ssid));
65 pbuf = kmalloc_array(MAX_BSS_CNT, sizeof(struct wlan_network),
66 GFP_ATOMIC);
67 if (!pbuf)
68 return _FAIL;
69 pmlmepriv->free_bss_buf = pbuf;
70 pnetwork = (struct wlan_network *)pbuf;
71 for (i = 0; i < MAX_BSS_CNT; i++) {
72 INIT_LIST_HEAD(&(pnetwork->list));
73 list_add_tail(&(pnetwork->list),
74 &(pmlmepriv->free_bss_pool.queue));
75 pnetwork++;
76 }
77 pmlmepriv->sitesurveyctrl.last_rx_pkts = 0;
78 pmlmepriv->sitesurveyctrl.last_tx_pkts = 0;
79 pmlmepriv->sitesurveyctrl.traffic_busy = false;
80 /* allocate DMA-able/Non-Page memory for cmd_buf and rsp_buf */
81 r8712_init_mlme_timer(padapter);
82 return _SUCCESS;
83 }
84
_r8712_alloc_network(struct mlme_priv * pmlmepriv)85 struct wlan_network *_r8712_alloc_network(struct mlme_priv *pmlmepriv)
86 {
87 unsigned long irqL;
88 struct wlan_network *pnetwork;
89 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
90
91 spin_lock_irqsave(&free_queue->lock, irqL);
92 pnetwork = list_first_entry_or_null(&free_queue->queue,
93 struct wlan_network, list);
94 if (pnetwork) {
95 list_del_init(&pnetwork->list);
96 pnetwork->last_scanned = jiffies;
97 pmlmepriv->num_of_scanned++;
98 }
99 spin_unlock_irqrestore(&free_queue->lock, irqL);
100 return pnetwork;
101 }
102
_free_network(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork)103 static void _free_network(struct mlme_priv *pmlmepriv,
104 struct wlan_network *pnetwork)
105 {
106 u32 curr_time, delta_time;
107 unsigned long irqL;
108 struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
109
110 if (pnetwork == NULL)
111 return;
112 if (pnetwork->fixed)
113 return;
114 curr_time = jiffies;
115 delta_time = (curr_time - (u32)pnetwork->last_scanned) / HZ;
116 if (delta_time < SCANQUEUE_LIFETIME)
117 return;
118 spin_lock_irqsave(&free_queue->lock, irqL);
119 list_del_init(&pnetwork->list);
120 list_add_tail(&pnetwork->list, &free_queue->queue);
121 pmlmepriv->num_of_scanned--;
122 spin_unlock_irqrestore(&free_queue->lock, irqL);
123 }
124
free_network_nolock(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork)125 static void free_network_nolock(struct mlme_priv *pmlmepriv,
126 struct wlan_network *pnetwork)
127 {
128 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
129
130 if (pnetwork == NULL)
131 return;
132 if (pnetwork->fixed)
133 return;
134 list_del_init(&pnetwork->list);
135 list_add_tail(&pnetwork->list, &free_queue->queue);
136 pmlmepriv->num_of_scanned--;
137 }
138
139
140 /* return the wlan_network with the matching addr
141 * Shall be called under atomic context...
142 * to avoid possible racing condition...
143 */
_r8712_find_network(struct __queue * scanned_queue,u8 * addr)144 static struct wlan_network *_r8712_find_network(struct __queue *scanned_queue,
145 u8 *addr)
146 {
147 unsigned long irqL;
148 struct list_head *phead, *plist;
149 struct wlan_network *pnetwork = NULL;
150
151 if (is_zero_ether_addr(addr))
152 return NULL;
153 spin_lock_irqsave(&scanned_queue->lock, irqL);
154 phead = &scanned_queue->queue;
155 plist = phead->next;
156 while (plist != phead) {
157 pnetwork = container_of(plist, struct wlan_network, list);
158 plist = plist->next;
159 if (!memcmp(addr, pnetwork->network.MacAddress, ETH_ALEN))
160 break;
161 }
162 spin_unlock_irqrestore(&scanned_queue->lock, irqL);
163 return pnetwork;
164 }
165
_free_network_queue(struct _adapter * padapter)166 static void _free_network_queue(struct _adapter *padapter)
167 {
168 unsigned long irqL;
169 struct list_head *phead, *plist;
170 struct wlan_network *pnetwork;
171 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
172 struct __queue *scanned_queue = &pmlmepriv->scanned_queue;
173
174 spin_lock_irqsave(&scanned_queue->lock, irqL);
175 phead = &scanned_queue->queue;
176 plist = phead->next;
177 while (!end_of_queue_search(phead, plist)) {
178 pnetwork = container_of(plist, struct wlan_network, list);
179 plist = plist->next;
180 _free_network(pmlmepriv, pnetwork);
181 }
182 spin_unlock_irqrestore(&scanned_queue->lock, irqL);
183 }
184
r8712_if_up(struct _adapter * padapter)185 sint r8712_if_up(struct _adapter *padapter)
186 {
187 sint res;
188
189 if (padapter->bDriverStopped || padapter->bSurpriseRemoved ||
190 !check_fwstate(&padapter->mlmepriv, _FW_LINKED)) {
191 res = false;
192 } else {
193 res = true;
194 }
195 return res;
196 }
197
r8712_generate_random_ibss(u8 * pibss)198 void r8712_generate_random_ibss(u8 *pibss)
199 {
200 u32 curtime = jiffies;
201
202 pibss[0] = 0x02; /*in ad-hoc mode bit1 must set to 1 */
203 pibss[1] = 0x11;
204 pibss[2] = 0x87;
205 pibss[3] = (u8)(curtime & 0xff);
206 pibss[4] = (u8)((curtime >> 8) & 0xff);
207 pibss[5] = (u8)((curtime >> 16) & 0xff);
208 }
209
r8712_get_wlan_bssid_ex_sz(struct wlan_bssid_ex * bss)210 uint r8712_get_wlan_bssid_ex_sz(struct wlan_bssid_ex *bss)
211 {
212 return sizeof(*bss) + bss->IELength - MAX_IE_SZ;
213 }
214
r8712_get_capability_from_ie(u8 * ie)215 u8 *r8712_get_capability_from_ie(u8 *ie)
216 {
217 return ie + 8 + 2;
218 }
219
r8712_init_mlme_priv(struct _adapter * padapter)220 int r8712_init_mlme_priv(struct _adapter *padapter)
221 {
222 return _init_mlme_priv(padapter);
223 }
224
r8712_free_mlme_priv(struct mlme_priv * pmlmepriv)225 void r8712_free_mlme_priv(struct mlme_priv *pmlmepriv)
226 {
227 kfree(pmlmepriv->free_bss_buf);
228 }
229
alloc_network(struct mlme_priv * pmlmepriv)230 static struct wlan_network *alloc_network(struct mlme_priv *pmlmepriv)
231 {
232 return _r8712_alloc_network(pmlmepriv);
233 }
234
r8712_free_network_queue(struct _adapter * dev)235 void r8712_free_network_queue(struct _adapter *dev)
236 {
237 _free_network_queue(dev);
238 }
239
240 /*
241 * return the wlan_network with the matching addr
242 * Shall be called under atomic context...
243 * to avoid possible racing condition...
244 */
r8712_find_network(struct __queue * scanned_queue,u8 * addr)245 static struct wlan_network *r8712_find_network(struct __queue *scanned_queue,
246 u8 *addr)
247 {
248 struct wlan_network *pnetwork = _r8712_find_network(scanned_queue,
249 addr);
250
251 return pnetwork;
252 }
253
r8712_is_same_ibss(struct _adapter * adapter,struct wlan_network * pnetwork)254 int r8712_is_same_ibss(struct _adapter *adapter, struct wlan_network *pnetwork)
255 {
256 int ret = true;
257 struct security_priv *psecuritypriv = &adapter->securitypriv;
258
259 if ((psecuritypriv->PrivacyAlgrthm != _NO_PRIVACY_) &&
260 (pnetwork->network.Privacy == cpu_to_le32(0)))
261 ret = false;
262 else if ((psecuritypriv->PrivacyAlgrthm == _NO_PRIVACY_) &&
263 (pnetwork->network.Privacy == cpu_to_le32(1)))
264 ret = false;
265 else
266 ret = true;
267 return ret;
268
269 }
270
is_same_network(struct wlan_bssid_ex * src,struct wlan_bssid_ex * dst)271 static int is_same_network(struct wlan_bssid_ex *src,
272 struct wlan_bssid_ex *dst)
273 {
274 u16 s_cap, d_cap;
275
276 memcpy((u8 *)&s_cap, r8712_get_capability_from_ie(src->IEs), 2);
277 memcpy((u8 *)&d_cap, r8712_get_capability_from_ie(dst->IEs), 2);
278 return (src->Ssid.SsidLength == dst->Ssid.SsidLength) &&
279 (src->Configuration.DSConfig ==
280 dst->Configuration.DSConfig) &&
281 ((!memcmp(src->MacAddress, dst->MacAddress,
282 ETH_ALEN))) &&
283 ((!memcmp(src->Ssid.Ssid,
284 dst->Ssid.Ssid,
285 src->Ssid.SsidLength))) &&
286 ((s_cap & WLAN_CAPABILITY_IBSS) ==
287 (d_cap & WLAN_CAPABILITY_IBSS)) &&
288 ((s_cap & WLAN_CAPABILITY_BSS) ==
289 (d_cap & WLAN_CAPABILITY_BSS));
290
291 }
292
r8712_get_oldest_wlan_network(struct __queue * scanned_queue)293 struct wlan_network *r8712_get_oldest_wlan_network(
294 struct __queue *scanned_queue)
295 {
296 struct list_head *plist, *phead;
297 struct wlan_network *pwlan = NULL;
298 struct wlan_network *oldest = NULL;
299
300 phead = &scanned_queue->queue;
301 plist = phead->next;
302 while (1) {
303 if (end_of_queue_search(phead, plist) == true)
304 break;
305 pwlan = container_of(plist, struct wlan_network, list);
306 if (pwlan->fixed != true) {
307 if (oldest == NULL ||
308 time_after((unsigned long)oldest->last_scanned,
309 (unsigned long)pwlan->last_scanned))
310 oldest = pwlan;
311 }
312 plist = plist->next;
313 }
314 return oldest;
315 }
316
update_network(struct wlan_bssid_ex * dst,struct wlan_bssid_ex * src,struct _adapter * padapter)317 static void update_network(struct wlan_bssid_ex *dst,
318 struct wlan_bssid_ex *src,
319 struct _adapter *padapter)
320 {
321 u32 last_evm = 0, tmpVal;
322 struct smooth_rssi_data *sqd = &padapter->recvpriv.signal_qual_data;
323
324 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) &&
325 is_same_network(&(padapter->mlmepriv.cur_network.network), src)) {
326 if (padapter->recvpriv.signal_qual_data.total_num++ >=
327 PHY_LINKQUALITY_SLID_WIN_MAX) {
328 padapter->recvpriv.signal_qual_data.total_num =
329 PHY_LINKQUALITY_SLID_WIN_MAX;
330 last_evm = sqd->elements[sqd->index];
331 padapter->recvpriv.signal_qual_data.total_val -=
332 last_evm;
333 }
334 padapter->recvpriv.signal_qual_data.total_val += src->Rssi;
335
336 sqd->elements[sqd->index++] = src->Rssi;
337 if (padapter->recvpriv.signal_qual_data.index >=
338 PHY_LINKQUALITY_SLID_WIN_MAX)
339 padapter->recvpriv.signal_qual_data.index = 0;
340 /* <1> Showed on UI for user, in percentage. */
341 tmpVal = padapter->recvpriv.signal_qual_data.total_val /
342 padapter->recvpriv.signal_qual_data.total_num;
343 padapter->recvpriv.signal = (u8)tmpVal;
344
345 src->Rssi = padapter->recvpriv.signal;
346 } else {
347 src->Rssi = (src->Rssi + dst->Rssi) / 2;
348 }
349 memcpy((u8 *)dst, (u8 *)src, r8712_get_wlan_bssid_ex_sz(src));
350 }
351
update_current_network(struct _adapter * adapter,struct wlan_bssid_ex * pnetwork)352 static void update_current_network(struct _adapter *adapter,
353 struct wlan_bssid_ex *pnetwork)
354 {
355 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
356
357 if (is_same_network(&(pmlmepriv->cur_network.network), pnetwork)) {
358 update_network(&(pmlmepriv->cur_network.network),
359 pnetwork, adapter);
360 r8712_update_protection(adapter,
361 (pmlmepriv->cur_network.network.IEs) +
362 sizeof(struct NDIS_802_11_FIXED_IEs),
363 pmlmepriv->cur_network.network.IELength);
364 }
365 }
366
367 /* Caller must hold pmlmepriv->lock first */
update_scanned_network(struct _adapter * adapter,struct wlan_bssid_ex * target)368 static void update_scanned_network(struct _adapter *adapter,
369 struct wlan_bssid_ex *target)
370 {
371 struct list_head *plist, *phead;
372
373 u32 bssid_ex_sz;
374 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
375 struct __queue *queue = &pmlmepriv->scanned_queue;
376 struct wlan_network *pnetwork = NULL;
377 struct wlan_network *oldest = NULL;
378
379 phead = &queue->queue;
380 plist = phead->next;
381
382 while (1) {
383 if (end_of_queue_search(phead, plist))
384 break;
385
386 pnetwork = container_of(plist, struct wlan_network, list);
387 if (is_same_network(&pnetwork->network, target))
388 break;
389 if ((oldest == ((struct wlan_network *)0)) ||
390 time_after((unsigned long)oldest->last_scanned,
391 (unsigned long)pnetwork->last_scanned))
392 oldest = pnetwork;
393
394 plist = plist->next;
395 }
396
397
398 /* If we didn't find a match, then get a new network slot to initialize
399 * with this beacon's information
400 */
401 if (end_of_queue_search(phead, plist)) {
402 if (list_empty(&pmlmepriv->free_bss_pool.queue)) {
403 /* If there are no more slots, expire the oldest */
404 pnetwork = oldest;
405 target->Rssi = (pnetwork->network.Rssi +
406 target->Rssi) / 2;
407 memcpy(&pnetwork->network, target,
408 r8712_get_wlan_bssid_ex_sz(target));
409 pnetwork->last_scanned = jiffies;
410 } else {
411 /* Otherwise just pull from the free list */
412 /* update scan_time */
413 pnetwork = alloc_network(pmlmepriv);
414 if (pnetwork == NULL)
415 return;
416 bssid_ex_sz = r8712_get_wlan_bssid_ex_sz(target);
417 target->Length = bssid_ex_sz;
418 memcpy(&pnetwork->network, target, bssid_ex_sz);
419 list_add_tail(&pnetwork->list, &queue->queue);
420 }
421 } else {
422 /* we have an entry and we are going to update it. But
423 * this entry may be already expired. In this case we
424 * do the same as we found a new net and call the new_net
425 * handler
426 */
427 update_network(&pnetwork->network, target, adapter);
428 pnetwork->last_scanned = jiffies;
429 }
430 }
431
rtl8711_add_network(struct _adapter * adapter,struct wlan_bssid_ex * pnetwork)432 static void rtl8711_add_network(struct _adapter *adapter,
433 struct wlan_bssid_ex *pnetwork)
434 {
435 unsigned long irqL;
436 struct mlme_priv *pmlmepriv = &(((struct _adapter *)adapter)->mlmepriv);
437 struct __queue *queue = &pmlmepriv->scanned_queue;
438
439 spin_lock_irqsave(&queue->lock, irqL);
440 update_current_network(adapter, pnetwork);
441 update_scanned_network(adapter, pnetwork);
442 spin_unlock_irqrestore(&queue->lock, irqL);
443 }
444
445 /*select the desired network based on the capability of the (i)bss.
446 * check items: (1) security
447 * (2) network_type
448 * (3) WMM
449 * (4) HT
450 * (5) others
451 */
is_desired_network(struct _adapter * adapter,struct wlan_network * pnetwork)452 static int is_desired_network(struct _adapter *adapter,
453 struct wlan_network *pnetwork)
454 {
455 u8 wps_ie[512];
456 uint wps_ielen;
457 int bselected = true;
458 struct security_priv *psecuritypriv = &adapter->securitypriv;
459
460 if (psecuritypriv->wps_phase) {
461 if (r8712_get_wps_ie(pnetwork->network.IEs,
462 pnetwork->network.IELength, wps_ie,
463 &wps_ielen))
464 return true;
465 return false;
466 }
467 if ((psecuritypriv->PrivacyAlgrthm != _NO_PRIVACY_) &&
468 (pnetwork->network.Privacy == 0))
469 bselected = false;
470 if (check_fwstate(&adapter->mlmepriv, WIFI_ADHOC_STATE)) {
471 if (pnetwork->network.InfrastructureMode !=
472 adapter->mlmepriv.cur_network.network.
473 InfrastructureMode)
474 bselected = false;
475 }
476 return bselected;
477 }
478
479 /* TODO: Perry : For Power Management */
r8712_atimdone_event_callback(struct _adapter * adapter,u8 * pbuf)480 void r8712_atimdone_event_callback(struct _adapter *adapter, u8 *pbuf)
481 {
482 }
483
r8712_survey_event_callback(struct _adapter * adapter,u8 * pbuf)484 void r8712_survey_event_callback(struct _adapter *adapter, u8 *pbuf)
485 {
486 unsigned long flags;
487 u32 len;
488 struct wlan_bssid_ex *pnetwork;
489 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
490
491 pnetwork = (struct wlan_bssid_ex *)pbuf;
492 #ifdef __BIG_ENDIAN
493 /* endian_convert */
494 pnetwork->Length = le32_to_cpu(pnetwork->Length);
495 pnetwork->Ssid.SsidLength = le32_to_cpu(pnetwork->Ssid.SsidLength);
496 pnetwork->Privacy = le32_to_cpu(pnetwork->Privacy);
497 pnetwork->Rssi = le32_to_cpu(pnetwork->Rssi);
498 pnetwork->NetworkTypeInUse = le32_to_cpu(pnetwork->NetworkTypeInUse);
499 pnetwork->Configuration.ATIMWindow =
500 le32_to_cpu(pnetwork->Configuration.ATIMWindow);
501 pnetwork->Configuration.BeaconPeriod =
502 le32_to_cpu(pnetwork->Configuration.BeaconPeriod);
503 pnetwork->Configuration.DSConfig =
504 le32_to_cpu(pnetwork->Configuration.DSConfig);
505 pnetwork->Configuration.FHConfig.DwellTime =
506 le32_to_cpu(pnetwork->Configuration.FHConfig.DwellTime);
507 pnetwork->Configuration.FHConfig.HopPattern =
508 le32_to_cpu(pnetwork->Configuration.FHConfig.HopPattern);
509 pnetwork->Configuration.FHConfig.HopSet =
510 le32_to_cpu(pnetwork->Configuration.FHConfig.HopSet);
511 pnetwork->Configuration.FHConfig.Length =
512 le32_to_cpu(pnetwork->Configuration.FHConfig.Length);
513 pnetwork->Configuration.Length =
514 le32_to_cpu(pnetwork->Configuration.Length);
515 pnetwork->InfrastructureMode =
516 le32_to_cpu(pnetwork->InfrastructureMode);
517 pnetwork->IELength = le32_to_cpu(pnetwork->IELength);
518 #endif
519 len = r8712_get_wlan_bssid_ex_sz(pnetwork);
520 if (len > sizeof(struct wlan_bssid_ex))
521 return;
522 spin_lock_irqsave(&pmlmepriv->lock2, flags);
523 /* update IBSS_network 's timestamp */
524 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) {
525 if (!memcmp(&(pmlmepriv->cur_network.network.MacAddress),
526 pnetwork->MacAddress, ETH_ALEN)) {
527 struct wlan_network *ibss_wlan = NULL;
528
529 memcpy(pmlmepriv->cur_network.network.IEs,
530 pnetwork->IEs, 8);
531 ibss_wlan = r8712_find_network(
532 &pmlmepriv->scanned_queue,
533 pnetwork->MacAddress);
534 if (ibss_wlan) {
535 memcpy(ibss_wlan->network.IEs,
536 pnetwork->IEs, 8);
537 goto exit;
538 }
539 }
540 }
541 /* lock pmlmepriv->lock when you accessing network_q */
542 if (!check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
543 if (pnetwork->Ssid.Ssid[0] != 0) {
544 rtl8711_add_network(adapter, pnetwork);
545 } else {
546 pnetwork->Ssid.SsidLength = 8;
547 memcpy(pnetwork->Ssid.Ssid, "<hidden>", 8);
548 rtl8711_add_network(adapter, pnetwork);
549 }
550 }
551 exit:
552 spin_unlock_irqrestore(&pmlmepriv->lock2, flags);
553 }
554
r8712_surveydone_event_callback(struct _adapter * adapter,u8 * pbuf)555 void r8712_surveydone_event_callback(struct _adapter *adapter, u8 *pbuf)
556 {
557 unsigned long irqL;
558 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
559
560 spin_lock_irqsave(&pmlmepriv->lock, irqL);
561
562 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
563 del_timer(&pmlmepriv->scan_to_timer);
564
565 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
566 }
567
568 if (pmlmepriv->to_join) {
569 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
570 if (!check_fwstate(pmlmepriv, _FW_LINKED)) {
571 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
572
573 if (r8712_select_and_join_from_scan(pmlmepriv)
574 == _SUCCESS) {
575 mod_timer(&pmlmepriv->assoc_timer, jiffies +
576 msecs_to_jiffies(MAX_JOIN_TIMEOUT));
577 } else {
578 struct wlan_bssid_ex *pdev_network =
579 &(adapter->registrypriv.dev_network);
580 u8 *pibss =
581 adapter->registrypriv.
582 dev_network.MacAddress;
583 pmlmepriv->fw_state ^= _FW_UNDER_SURVEY;
584 memcpy(&pdev_network->Ssid,
585 &pmlmepriv->assoc_ssid,
586 sizeof(struct
587 ndis_802_11_ssid));
588 r8712_update_registrypriv_dev_network
589 (adapter);
590 r8712_generate_random_ibss(pibss);
591 pmlmepriv->fw_state =
592 WIFI_ADHOC_MASTER_STATE;
593 pmlmepriv->to_join = false;
594 }
595 }
596 } else {
597 pmlmepriv->to_join = false;
598 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
599 if (r8712_select_and_join_from_scan(pmlmepriv) ==
600 _SUCCESS)
601 mod_timer(&pmlmepriv->assoc_timer, jiffies +
602 msecs_to_jiffies(MAX_JOIN_TIMEOUT));
603 else
604 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
605 }
606 }
607 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
608 }
609
610 /*
611 *r8712_free_assoc_resources: the caller has to lock pmlmepriv->lock
612 */
r8712_free_assoc_resources(struct _adapter * adapter)613 void r8712_free_assoc_resources(struct _adapter *adapter)
614 {
615 unsigned long irqL;
616 struct wlan_network *pwlan = NULL;
617 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
618 struct sta_priv *pstapriv = &adapter->stapriv;
619 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
620
621 pwlan = r8712_find_network(&pmlmepriv->scanned_queue,
622 tgt_network->network.MacAddress);
623
624 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE)) {
625 struct sta_info *psta;
626
627 psta = r8712_get_stainfo(&adapter->stapriv,
628 tgt_network->network.MacAddress);
629
630 spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
631 r8712_free_stainfo(adapter, psta);
632 spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
633 }
634
635 if (check_fwstate(pmlmepriv,
636 WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE | WIFI_AP_STATE))
637 r8712_free_all_stainfo(adapter);
638 if (pwlan)
639 pwlan->fixed = false;
640
641 if (((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) &&
642 (adapter->stapriv.asoc_sta_count == 1)))
643 free_network_nolock(pmlmepriv, pwlan);
644 }
645
646 /*
647 * r8712_indicate_connect: the caller has to lock pmlmepriv->lock
648 */
r8712_indicate_connect(struct _adapter * padapter)649 void r8712_indicate_connect(struct _adapter *padapter)
650 {
651 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
652
653 pmlmepriv->to_join = false;
654 set_fwstate(pmlmepriv, _FW_LINKED);
655 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_LINK);
656 r8712_os_indicate_connect(padapter);
657 if (padapter->registrypriv.power_mgnt > PS_MODE_ACTIVE)
658 mod_timer(&pmlmepriv->dhcp_timer,
659 jiffies + msecs_to_jiffies(60000));
660 }
661
662
663 /*
664 * r8712_ind_disconnect: the caller has to lock pmlmepriv->lock
665 */
r8712_ind_disconnect(struct _adapter * padapter)666 void r8712_ind_disconnect(struct _adapter *padapter)
667 {
668 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
669
670 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
671 _clr_fwstate_(pmlmepriv, _FW_LINKED);
672 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_NO_LINK);
673 r8712_os_indicate_disconnect(padapter);
674 }
675 if (padapter->pwrctrlpriv.pwr_mode !=
676 padapter->registrypriv.power_mgnt) {
677 del_timer(&pmlmepriv->dhcp_timer);
678 r8712_set_ps_mode(padapter, padapter->registrypriv.power_mgnt,
679 padapter->registrypriv.smart_ps);
680 }
681 }
682
683 /*Notes:
684 *pnetwork : returns from r8712_joinbss_event_callback
685 *ptarget_wlan: found from scanned_queue
686 *if join_res > 0, for (fw_state==WIFI_STATION_STATE), we check if
687 * "ptarget_sta" & "ptarget_wlan" exist.
688 *if join_res > 0, for (fw_state==WIFI_ADHOC_STATE), we only check
689 * if "ptarget_wlan" exist.
690 *if join_res > 0, update "cur_network->network" from
691 * "pnetwork->network" if (ptarget_wlan !=NULL).
692 */
r8712_joinbss_event_callback(struct _adapter * adapter,u8 * pbuf)693 void r8712_joinbss_event_callback(struct _adapter *adapter, u8 *pbuf)
694 {
695 unsigned long irqL = 0, irqL2;
696 struct sta_info *ptarget_sta = NULL, *pcur_sta = NULL;
697 struct sta_priv *pstapriv = &adapter->stapriv;
698 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
699 struct wlan_network *cur_network = &pmlmepriv->cur_network;
700 struct wlan_network *pcur_wlan = NULL, *ptarget_wlan = NULL;
701 unsigned int the_same_macaddr = false;
702 struct wlan_network *pnetwork;
703
704 if (sizeof(struct list_head) == 4 * sizeof(u32)) {
705 pnetwork = kmalloc(sizeof(struct wlan_network), GFP_ATOMIC);
706 if (!pnetwork)
707 return;
708 memcpy((u8 *)pnetwork + 16, (u8 *)pbuf + 8,
709 sizeof(struct wlan_network) - 16);
710 } else {
711 pnetwork = (struct wlan_network *)pbuf;
712 }
713
714 #ifdef __BIG_ENDIAN
715 /* endian_convert */
716 pnetwork->join_res = le32_to_cpu(pnetwork->join_res);
717 pnetwork->network_type = le32_to_cpu(pnetwork->network_type);
718 pnetwork->network.Length = le32_to_cpu(pnetwork->network.Length);
719 pnetwork->network.Ssid.SsidLength =
720 le32_to_cpu(pnetwork->network.Ssid.SsidLength);
721 pnetwork->network.Privacy = le32_to_cpu(pnetwork->network.Privacy);
722 pnetwork->network.Rssi = le32_to_cpu(pnetwork->network.Rssi);
723 pnetwork->network.NetworkTypeInUse =
724 le32_to_cpu(pnetwork->network.NetworkTypeInUse);
725 pnetwork->network.Configuration.ATIMWindow =
726 le32_to_cpu(pnetwork->network.Configuration.ATIMWindow);
727 pnetwork->network.Configuration.BeaconPeriod =
728 le32_to_cpu(pnetwork->network.Configuration.BeaconPeriod);
729 pnetwork->network.Configuration.DSConfig =
730 le32_to_cpu(pnetwork->network.Configuration.DSConfig);
731 pnetwork->network.Configuration.FHConfig.DwellTime =
732 le32_to_cpu(pnetwork->network.Configuration.FHConfig.
733 DwellTime);
734 pnetwork->network.Configuration.FHConfig.HopPattern =
735 le32_to_cpu(pnetwork->network.Configuration.
736 FHConfig.HopPattern);
737 pnetwork->network.Configuration.FHConfig.HopSet =
738 le32_to_cpu(pnetwork->network.Configuration.FHConfig.HopSet);
739 pnetwork->network.Configuration.FHConfig.Length =
740 le32_to_cpu(pnetwork->network.Configuration.FHConfig.Length);
741 pnetwork->network.Configuration.Length =
742 le32_to_cpu(pnetwork->network.Configuration.Length);
743 pnetwork->network.InfrastructureMode =
744 le32_to_cpu(pnetwork->network.InfrastructureMode);
745 pnetwork->network.IELength = le32_to_cpu(pnetwork->network.IELength);
746 #endif
747
748 the_same_macaddr = !memcmp(pnetwork->network.MacAddress,
749 cur_network->network.MacAddress, ETH_ALEN);
750 pnetwork->network.Length =
751 r8712_get_wlan_bssid_ex_sz(&pnetwork->network);
752 spin_lock_irqsave(&pmlmepriv->lock, irqL);
753 if (pnetwork->network.Length > sizeof(struct wlan_bssid_ex))
754 goto ignore_joinbss_callback;
755 if (pnetwork->join_res > 0) {
756 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
757 /*s1. find ptarget_wlan*/
758 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
759 if (the_same_macaddr) {
760 ptarget_wlan =
761 r8712_find_network(&pmlmepriv->
762 scanned_queue,
763 cur_network->network.MacAddress);
764 } else {
765 pcur_wlan =
766 r8712_find_network(&pmlmepriv->
767 scanned_queue,
768 cur_network->network.MacAddress);
769 pcur_wlan->fixed = false;
770
771 pcur_sta = r8712_get_stainfo(pstapriv,
772 cur_network->network.MacAddress);
773 spin_lock_irqsave(&pstapriv->
774 sta_hash_lock, irqL2);
775 r8712_free_stainfo(adapter, pcur_sta);
776 spin_unlock_irqrestore(&(pstapriv->
777 sta_hash_lock), irqL2);
778
779 ptarget_wlan =
780 r8712_find_network(&pmlmepriv->
781 scanned_queue,
782 pnetwork->network.
783 MacAddress);
784 if (ptarget_wlan)
785 ptarget_wlan->fixed = true;
786 }
787 } else {
788 ptarget_wlan = r8712_find_network(&pmlmepriv->
789 scanned_queue,
790 pnetwork->network.MacAddress);
791 if (ptarget_wlan)
792 ptarget_wlan->fixed = true;
793 }
794
795 if (ptarget_wlan == NULL) {
796 if (check_fwstate(pmlmepriv,
797 _FW_UNDER_LINKING))
798 pmlmepriv->fw_state ^=
799 _FW_UNDER_LINKING;
800 goto ignore_joinbss_callback;
801 }
802
803 /*s2. find ptarget_sta & update ptarget_sta*/
804 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
805 if (the_same_macaddr) {
806 ptarget_sta =
807 r8712_get_stainfo(pstapriv,
808 pnetwork->network.MacAddress);
809 if (ptarget_sta == NULL)
810 ptarget_sta =
811 r8712_alloc_stainfo(pstapriv,
812 pnetwork->network.MacAddress);
813 } else {
814 ptarget_sta =
815 r8712_alloc_stainfo(pstapriv,
816 pnetwork->network.MacAddress);
817 }
818 if (ptarget_sta) /*update ptarget_sta*/ {
819 ptarget_sta->aid = pnetwork->join_res;
820 ptarget_sta->qos_option = 1;
821 ptarget_sta->mac_id = 5;
822 if (adapter->securitypriv.
823 AuthAlgrthm == 2) {
824 adapter->securitypriv.
825 binstallGrpkey =
826 false;
827 adapter->securitypriv.
828 busetkipkey =
829 false;
830 adapter->securitypriv.
831 bgrpkey_handshake =
832 false;
833 ptarget_sta->ieee8021x_blocked
834 = true;
835 ptarget_sta->XPrivacy =
836 adapter->securitypriv.
837 PrivacyAlgrthm;
838 memset((u8 *)&ptarget_sta->
839 x_UncstKey,
840 0,
841 sizeof(union Keytype));
842 memset((u8 *)&ptarget_sta->
843 tkiprxmickey,
844 0,
845 sizeof(union Keytype));
846 memset((u8 *)&ptarget_sta->
847 tkiptxmickey,
848 0,
849 sizeof(union Keytype));
850 memset((u8 *)&ptarget_sta->
851 txpn, 0,
852 sizeof(union pn48));
853 memset((u8 *)&ptarget_sta->
854 rxpn, 0,
855 sizeof(union pn48));
856 }
857 } else {
858 if (check_fwstate(pmlmepriv,
859 _FW_UNDER_LINKING))
860 pmlmepriv->fw_state ^=
861 _FW_UNDER_LINKING;
862 goto ignore_joinbss_callback;
863 }
864 }
865
866 /*s3. update cur_network & indicate connect*/
867 memcpy(&cur_network->network, &pnetwork->network,
868 pnetwork->network.Length);
869 cur_network->aid = pnetwork->join_res;
870 /*update fw_state will clr _FW_UNDER_LINKING*/
871 switch (pnetwork->network.InfrastructureMode) {
872 case Ndis802_11Infrastructure:
873 pmlmepriv->fw_state = WIFI_STATION_STATE;
874 break;
875 case Ndis802_11IBSS:
876 pmlmepriv->fw_state = WIFI_ADHOC_STATE;
877 break;
878 default:
879 pmlmepriv->fw_state = WIFI_NULL_STATE;
880 break;
881 }
882 r8712_update_protection(adapter,
883 (cur_network->network.IEs) +
884 sizeof(struct NDIS_802_11_FIXED_IEs),
885 (cur_network->network.IELength));
886 /*TODO: update HT_Capability*/
887 update_ht_cap(adapter, cur_network->network.IEs,
888 cur_network->network.IELength);
889 /*indicate connect*/
890 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE))
891 r8712_indicate_connect(adapter);
892 del_timer(&pmlmepriv->assoc_timer);
893 } else {
894 goto ignore_joinbss_callback;
895 }
896 } else {
897 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
898 mod_timer(&pmlmepriv->assoc_timer,
899 jiffies + msecs_to_jiffies(1));
900 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
901 }
902 }
903 ignore_joinbss_callback:
904 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
905 if (sizeof(struct list_head) == 4 * sizeof(u32))
906 kfree(pnetwork);
907 }
908
r8712_stassoc_event_callback(struct _adapter * adapter,u8 * pbuf)909 void r8712_stassoc_event_callback(struct _adapter *adapter, u8 *pbuf)
910 {
911 unsigned long irqL;
912 struct sta_info *psta;
913 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
914 struct stassoc_event *pstassoc = (struct stassoc_event *)pbuf;
915
916 /* to do: */
917 if (!r8712_access_ctrl(&adapter->acl_list, pstassoc->macaddr))
918 return;
919 psta = r8712_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
920 if (psta != NULL) {
921 /*the sta have been in sta_info_queue => do nothing
922 *(between drv has received this event before and
923 * fw have not yet to set key to CAM_ENTRY)
924 */
925 return;
926 }
927
928 psta = r8712_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
929 if (psta == NULL)
930 return;
931 /* to do : init sta_info variable */
932 psta->qos_option = 0;
933 psta->mac_id = le32_to_cpu(pstassoc->cam_id);
934 /* psta->aid = (uint)pstassoc->cam_id; */
935
936 if (adapter->securitypriv.AuthAlgrthm == 2)
937 psta->XPrivacy = adapter->securitypriv.PrivacyAlgrthm;
938 psta->ieee8021x_blocked = false;
939 spin_lock_irqsave(&pmlmepriv->lock, irqL);
940 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
941 check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
942 if (adapter->stapriv.asoc_sta_count == 2) {
943 /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
944 r8712_indicate_connect(adapter);
945 }
946 }
947 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
948 }
949
r8712_stadel_event_callback(struct _adapter * adapter,u8 * pbuf)950 void r8712_stadel_event_callback(struct _adapter *adapter, u8 *pbuf)
951 {
952 unsigned long irqL, irqL2;
953 struct sta_info *psta;
954 struct wlan_network *pwlan = NULL;
955 struct wlan_bssid_ex *pdev_network = NULL;
956 u8 *pibss = NULL;
957 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
958 struct stadel_event *pstadel = (struct stadel_event *)pbuf;
959 struct sta_priv *pstapriv = &adapter->stapriv;
960 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
961
962 spin_lock_irqsave(&pmlmepriv->lock, irqL2);
963 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
964 r8712_ind_disconnect(adapter);
965 r8712_free_assoc_resources(adapter);
966 }
967 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE |
968 WIFI_ADHOC_STATE)) {
969 psta = r8712_get_stainfo(&adapter->stapriv, pstadel->macaddr);
970 spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
971 r8712_free_stainfo(adapter, psta);
972 spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
973 if (adapter->stapriv.asoc_sta_count == 1) {
974 /*a sta + bc/mc_stainfo (not Ibss_stainfo) */
975 pwlan = r8712_find_network(&pmlmepriv->scanned_queue,
976 tgt_network->network.MacAddress);
977 if (pwlan) {
978 pwlan->fixed = false;
979 free_network_nolock(pmlmepriv, pwlan);
980 }
981 /*re-create ibss*/
982 pdev_network = &(adapter->registrypriv.dev_network);
983 pibss = adapter->registrypriv.dev_network.MacAddress;
984 memcpy(pdev_network, &tgt_network->network,
985 r8712_get_wlan_bssid_ex_sz(&tgt_network->
986 network));
987 memcpy(&pdev_network->Ssid,
988 &pmlmepriv->assoc_ssid,
989 sizeof(struct ndis_802_11_ssid));
990 r8712_update_registrypriv_dev_network(adapter);
991 r8712_generate_random_ibss(pibss);
992 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
993 _clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
994 set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
995 }
996 }
997 }
998 spin_unlock_irqrestore(&pmlmepriv->lock, irqL2);
999 }
1000
r8712_cpwm_event_callback(struct _adapter * adapter,u8 * pbuf)1001 void r8712_cpwm_event_callback(struct _adapter *adapter, u8 *pbuf)
1002 {
1003 struct reportpwrstate_parm *preportpwrstate =
1004 (struct reportpwrstate_parm *)pbuf;
1005
1006 preportpwrstate->state |= (u8)(adapter->pwrctrlpriv.cpwm_tog + 0x80);
1007 r8712_cpwm_int_hdl(adapter, preportpwrstate);
1008 }
1009
1010 /* When the Netgear 3500 AP is with WPA2PSK-AES mode, it will send
1011 * the ADDBA req frame with start seq control = 0 to wifi client after
1012 * the WPA handshake and the seqence number of following data packet
1013 * will be 0. In this case, the Rx reorder sequence is not longer than 0
1014 * and the WiFi client will drop the data with seq number 0.
1015 * So, the 8712 firmware has to inform driver with receiving the
1016 * ADDBA-Req frame so that the driver can reset the
1017 * sequence value of Rx reorder control.
1018 */
r8712_got_addbareq_event_callback(struct _adapter * adapter,u8 * pbuf)1019 void r8712_got_addbareq_event_callback(struct _adapter *adapter, u8 *pbuf)
1020 {
1021 struct ADDBA_Req_Report_parm *pAddbareq_pram =
1022 (struct ADDBA_Req_Report_parm *)pbuf;
1023 struct sta_info *psta;
1024 struct sta_priv *pstapriv = &adapter->stapriv;
1025 struct recv_reorder_ctrl *precvreorder_ctrl = NULL;
1026
1027 psta = r8712_get_stainfo(pstapriv, pAddbareq_pram->MacAddress);
1028 if (psta) {
1029 precvreorder_ctrl =
1030 &psta->recvreorder_ctrl[pAddbareq_pram->tid];
1031 /* set the indicate_seq to 0xffff so that the rx reorder
1032 * can store any following data packet.
1033 */
1034 precvreorder_ctrl->indicate_seq = 0xffff;
1035 }
1036 }
1037
r8712_wpspbc_event_callback(struct _adapter * adapter,u8 * pbuf)1038 void r8712_wpspbc_event_callback(struct _adapter *adapter, u8 *pbuf)
1039 {
1040 if (!adapter->securitypriv.wps_hw_pbc_pressed)
1041 adapter->securitypriv.wps_hw_pbc_pressed = true;
1042 }
1043
_r8712_sitesurvey_ctrl_handler(struct _adapter * adapter)1044 void _r8712_sitesurvey_ctrl_handler(struct _adapter *adapter)
1045 {
1046 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1047 struct sitesurvey_ctrl *psitesurveyctrl = &pmlmepriv->sitesurveyctrl;
1048 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1049 u64 current_tx_pkts;
1050 uint current_rx_pkts;
1051
1052 current_tx_pkts = (adapter->xmitpriv.tx_pkts) -
1053 (psitesurveyctrl->last_tx_pkts);
1054 current_rx_pkts = (adapter->recvpriv.rx_pkts) -
1055 (psitesurveyctrl->last_rx_pkts);
1056 psitesurveyctrl->last_tx_pkts = adapter->xmitpriv.tx_pkts;
1057 psitesurveyctrl->last_rx_pkts = adapter->recvpriv.rx_pkts;
1058 if ((current_tx_pkts > pregistrypriv->busy_thresh) ||
1059 (current_rx_pkts > pregistrypriv->busy_thresh))
1060 psitesurveyctrl->traffic_busy = true;
1061 else
1062 psitesurveyctrl->traffic_busy = false;
1063 }
1064
_r8712_join_timeout_handler(struct _adapter * adapter)1065 void _r8712_join_timeout_handler(struct _adapter *adapter)
1066 {
1067 unsigned long irqL;
1068 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1069
1070 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1071 return;
1072 spin_lock_irqsave(&pmlmepriv->lock, irqL);
1073 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1074 pmlmepriv->to_join = false;
1075 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1076 r8712_os_indicate_disconnect(adapter);
1077 _clr_fwstate_(pmlmepriv, _FW_LINKED);
1078 }
1079 if (adapter->pwrctrlpriv.pwr_mode != adapter->registrypriv.power_mgnt) {
1080 r8712_set_ps_mode(adapter, adapter->registrypriv.power_mgnt,
1081 adapter->registrypriv.smart_ps);
1082 }
1083 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
1084 }
1085
r8712_scan_timeout_handler(struct _adapter * adapter)1086 void r8712_scan_timeout_handler (struct _adapter *adapter)
1087 {
1088 unsigned long irqL;
1089 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1090
1091 spin_lock_irqsave(&pmlmepriv->lock, irqL);
1092 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
1093 pmlmepriv->to_join = false; /* scan fail, so clear to_join flag */
1094 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
1095 }
1096
_r8712_dhcp_timeout_handler(struct _adapter * adapter)1097 void _r8712_dhcp_timeout_handler (struct _adapter *adapter)
1098 {
1099 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1100 return;
1101 if (adapter->pwrctrlpriv.pwr_mode != adapter->registrypriv.power_mgnt)
1102 r8712_set_ps_mode(adapter, adapter->registrypriv.power_mgnt,
1103 adapter->registrypriv.smart_ps);
1104 }
1105
_r8712_wdg_timeout_handler(struct _adapter * adapter)1106 void _r8712_wdg_timeout_handler(struct _adapter *adapter)
1107 {
1108 r8712_wdg_wk_cmd(adapter);
1109 }
1110
r8712_select_and_join_from_scan(struct mlme_priv * pmlmepriv)1111 int r8712_select_and_join_from_scan(struct mlme_priv *pmlmepriv)
1112 {
1113 struct list_head *phead;
1114 unsigned char *dst_ssid, *src_ssid;
1115 struct _adapter *adapter;
1116 struct __queue *queue = NULL;
1117 struct wlan_network *pnetwork = NULL;
1118 struct wlan_network *pnetwork_max_rssi = NULL;
1119
1120 adapter = (struct _adapter *)pmlmepriv->nic_hdl;
1121 queue = &pmlmepriv->scanned_queue;
1122 phead = &queue->queue;
1123 pmlmepriv->pscanned = phead->next;
1124 while (1) {
1125 if (end_of_queue_search(phead, pmlmepriv->pscanned)) {
1126 if ((pmlmepriv->assoc_by_rssi) &&
1127 (pnetwork_max_rssi != NULL)) {
1128 pnetwork = pnetwork_max_rssi;
1129 goto ask_for_joinbss;
1130 }
1131 return _FAIL;
1132 }
1133 pnetwork = container_of(pmlmepriv->pscanned,
1134 struct wlan_network, list);
1135 if (pnetwork == NULL)
1136 return _FAIL;
1137 pmlmepriv->pscanned = pmlmepriv->pscanned->next;
1138 if (pmlmepriv->assoc_by_bssid) {
1139 dst_ssid = pnetwork->network.MacAddress;
1140 src_ssid = pmlmepriv->assoc_bssid;
1141 if (!memcmp(dst_ssid, src_ssid, ETH_ALEN)) {
1142 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1143 if (is_same_network(&pmlmepriv->
1144 cur_network.network,
1145 &pnetwork->network)) {
1146 _clr_fwstate_(pmlmepriv,
1147 _FW_UNDER_LINKING);
1148 /*r8712_indicate_connect again*/
1149 r8712_indicate_connect(adapter);
1150 return 2;
1151 }
1152 r8712_disassoc_cmd(adapter);
1153 r8712_ind_disconnect(adapter);
1154 r8712_free_assoc_resources(adapter);
1155 }
1156 goto ask_for_joinbss;
1157 }
1158 } else if (pmlmepriv->assoc_ssid.SsidLength == 0) {
1159 goto ask_for_joinbss;
1160 }
1161 dst_ssid = pnetwork->network.Ssid.Ssid;
1162 src_ssid = pmlmepriv->assoc_ssid.Ssid;
1163 if ((pnetwork->network.Ssid.SsidLength ==
1164 pmlmepriv->assoc_ssid.SsidLength) &&
1165 (!memcmp(dst_ssid, src_ssid,
1166 pmlmepriv->assoc_ssid.SsidLength))) {
1167 if (pmlmepriv->assoc_by_rssi) {
1168 /* if the ssid is the same, select the bss
1169 * which has the max rssi
1170 */
1171 if (pnetwork_max_rssi) {
1172 if (pnetwork->network.Rssi >
1173 pnetwork_max_rssi->network.Rssi)
1174 pnetwork_max_rssi = pnetwork;
1175 } else {
1176 pnetwork_max_rssi = pnetwork;
1177 }
1178 } else if (is_desired_network(adapter, pnetwork)) {
1179 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1180 r8712_disassoc_cmd(adapter);
1181 r8712_free_assoc_resources(adapter);
1182 }
1183 goto ask_for_joinbss;
1184 }
1185 }
1186 }
1187
1188 ask_for_joinbss:
1189 return r8712_joinbss_cmd(adapter, pnetwork);
1190 }
1191
r8712_set_auth(struct _adapter * adapter,struct security_priv * psecuritypriv)1192 sint r8712_set_auth(struct _adapter *adapter,
1193 struct security_priv *psecuritypriv)
1194 {
1195 struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
1196 struct cmd_obj *pcmd;
1197 struct setauth_parm *psetauthparm;
1198
1199 pcmd = kmalloc(sizeof(*pcmd), GFP_ATOMIC);
1200 if (!pcmd)
1201 return _FAIL;
1202
1203 psetauthparm = kzalloc(sizeof(*psetauthparm), GFP_ATOMIC);
1204 if (!psetauthparm) {
1205 kfree(pcmd);
1206 return _FAIL;
1207 }
1208 psetauthparm->mode = (u8)psecuritypriv->AuthAlgrthm;
1209 pcmd->cmdcode = _SetAuth_CMD_;
1210 pcmd->parmbuf = (unsigned char *)psetauthparm;
1211 pcmd->cmdsz = sizeof(struct setauth_parm);
1212 pcmd->rsp = NULL;
1213 pcmd->rspsz = 0;
1214 INIT_LIST_HEAD(&pcmd->list);
1215 r8712_enqueue_cmd(pcmdpriv, pcmd);
1216 return _SUCCESS;
1217 }
1218
r8712_set_key(struct _adapter * adapter,struct security_priv * psecuritypriv,sint keyid)1219 sint r8712_set_key(struct _adapter *adapter,
1220 struct security_priv *psecuritypriv,
1221 sint keyid)
1222 {
1223 struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
1224 struct cmd_obj *pcmd;
1225 struct setkey_parm *psetkeyparm;
1226 u8 keylen;
1227 sint ret = _SUCCESS;
1228
1229 pcmd = kmalloc(sizeof(*pcmd), GFP_ATOMIC);
1230 if (!pcmd)
1231 return _FAIL;
1232 psetkeyparm = kzalloc(sizeof(*psetkeyparm), GFP_ATOMIC);
1233 if (!psetkeyparm) {
1234 ret = _FAIL;
1235 goto err_free_cmd;
1236 }
1237 if (psecuritypriv->AuthAlgrthm == 2) { /* 802.1X */
1238 psetkeyparm->algorithm =
1239 (u8)psecuritypriv->XGrpPrivacy;
1240 } else { /* WEP */
1241 psetkeyparm->algorithm =
1242 (u8)psecuritypriv->PrivacyAlgrthm;
1243 }
1244 psetkeyparm->keyid = (u8)keyid;
1245
1246 switch (psetkeyparm->algorithm) {
1247 case _WEP40_:
1248 keylen = 5;
1249 memcpy(psetkeyparm->key,
1250 psecuritypriv->DefKey[keyid].skey, keylen);
1251 break;
1252 case _WEP104_:
1253 keylen = 13;
1254 memcpy(psetkeyparm->key,
1255 psecuritypriv->DefKey[keyid].skey, keylen);
1256 break;
1257 case _TKIP_:
1258 if (keyid < 1 || keyid > 2) {
1259 ret = _FAIL;
1260 goto err_free_parm;
1261 }
1262 keylen = 16;
1263 memcpy(psetkeyparm->key,
1264 &psecuritypriv->XGrpKey[keyid - 1], keylen);
1265 psetkeyparm->grpkey = 1;
1266 break;
1267 case _AES_:
1268 if (keyid < 1 || keyid > 2) {
1269 ret = _FAIL;
1270 goto err_free_parm;
1271 }
1272 keylen = 16;
1273 memcpy(psetkeyparm->key,
1274 &psecuritypriv->XGrpKey[keyid - 1], keylen);
1275 psetkeyparm->grpkey = 1;
1276 break;
1277 default:
1278 ret = _FAIL;
1279 goto err_free_parm;
1280 }
1281 pcmd->cmdcode = _SetKey_CMD_;
1282 pcmd->parmbuf = (u8 *)psetkeyparm;
1283 pcmd->cmdsz = (sizeof(struct setkey_parm));
1284 pcmd->rsp = NULL;
1285 pcmd->rspsz = 0;
1286 INIT_LIST_HEAD(&pcmd->list);
1287 r8712_enqueue_cmd(pcmdpriv, pcmd);
1288 return ret;
1289
1290 err_free_parm:
1291 kfree(psetkeyparm);
1292 err_free_cmd:
1293 kfree(pcmd);
1294 return ret;
1295 }
1296
1297 /* adjust IEs for r8712_joinbss_cmd in WMM */
r8712_restruct_wmm_ie(struct _adapter * adapter,u8 * in_ie,u8 * out_ie,uint in_len,uint initial_out_len)1298 int r8712_restruct_wmm_ie(struct _adapter *adapter, u8 *in_ie, u8 *out_ie,
1299 uint in_len, uint initial_out_len)
1300 {
1301 unsigned int ielength = 0;
1302 unsigned int i, j;
1303
1304 i = 12; /* after the fixed IE */
1305 while (i < in_len) {
1306 ielength = initial_out_len;
1307 if (in_ie[i] == 0xDD && in_ie[i + 2] == 0x00 &&
1308 in_ie[i + 3] == 0x50 && in_ie[i + 4] == 0xF2 &&
1309 in_ie[i + 5] == 0x02 && i + 5 < in_len) {
1310 /*WMM element ID and OUI*/
1311 for (j = i; j < i + 9; j++) {
1312 out_ie[ielength] = in_ie[j];
1313 ielength++;
1314 }
1315 out_ie[initial_out_len + 1] = 0x07;
1316 out_ie[initial_out_len + 6] = 0x00;
1317 out_ie[initial_out_len + 8] = 0x00;
1318 break;
1319 }
1320 i += (in_ie[i + 1] + 2); /* to the next IE element */
1321 }
1322 return ielength;
1323 }
1324
1325 /*
1326 * Ported from 8185: IsInPreAuthKeyList().
1327 *
1328 * Search by BSSID,
1329 * Return Value:
1330 * -1 :if there is no pre-auth key in the table
1331 * >=0 :if there is pre-auth key, and return the entry id
1332 */
SecIsInPMKIDList(struct _adapter * Adapter,u8 * bssid)1333 static int SecIsInPMKIDList(struct _adapter *Adapter, u8 *bssid)
1334 {
1335 struct security_priv *psecuritypriv = &Adapter->securitypriv;
1336 int i = 0;
1337
1338 do {
1339 if (psecuritypriv->PMKIDList[i].bUsed &&
1340 (!memcmp(psecuritypriv->PMKIDList[i].Bssid,
1341 bssid, ETH_ALEN)))
1342 break;
1343 i++;
1344
1345 } while (i < NUM_PMKID_CACHE);
1346
1347 if (i == NUM_PMKID_CACHE) {
1348 i = -1; /* Could not find. */
1349 } else {
1350 ; /* There is one Pre-Authentication Key for the
1351 * specific BSSID.
1352 */
1353 }
1354 return i;
1355 }
1356
r8712_restruct_sec_ie(struct _adapter * adapter,u8 * in_ie,u8 * out_ie,uint in_len)1357 sint r8712_restruct_sec_ie(struct _adapter *adapter, u8 *in_ie,
1358 u8 *out_ie, uint in_len)
1359 {
1360 u8 authmode = 0, match;
1361 u8 sec_ie[255], uncst_oui[4], bkup_ie[255];
1362 u8 wpa_oui[4] = {0x0, 0x50, 0xf2, 0x01};
1363 uint ielength, cnt, remove_cnt;
1364 int iEntry;
1365 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1366 struct security_priv *psecuritypriv = &adapter->securitypriv;
1367 uint ndisauthmode = psecuritypriv->ndisauthtype;
1368 uint ndissecuritytype = psecuritypriv->ndisencryptstatus;
1369
1370 if ((ndisauthmode == Ndis802_11AuthModeWPA) ||
1371 (ndisauthmode == Ndis802_11AuthModeWPAPSK)) {
1372 authmode = _WPA_IE_ID_;
1373 uncst_oui[0] = 0x0;
1374 uncst_oui[1] = 0x50;
1375 uncst_oui[2] = 0xf2;
1376 }
1377 if ((ndisauthmode == Ndis802_11AuthModeWPA2) ||
1378 (ndisauthmode == Ndis802_11AuthModeWPA2PSK)) {
1379 authmode = _WPA2_IE_ID_;
1380 uncst_oui[0] = 0x0;
1381 uncst_oui[1] = 0x0f;
1382 uncst_oui[2] = 0xac;
1383 }
1384 switch (ndissecuritytype) {
1385 case Ndis802_11Encryption1Enabled:
1386 case Ndis802_11Encryption1KeyAbsent:
1387 uncst_oui[3] = 0x1;
1388 break;
1389 case Ndis802_11Encryption2Enabled:
1390 case Ndis802_11Encryption2KeyAbsent:
1391 uncst_oui[3] = 0x2;
1392 break;
1393 case Ndis802_11Encryption3Enabled:
1394 case Ndis802_11Encryption3KeyAbsent:
1395 uncst_oui[3] = 0x4;
1396 break;
1397 default:
1398 break;
1399 }
1400 /*Search required WPA or WPA2 IE and copy to sec_ie[] */
1401 cnt = 12;
1402 match = false;
1403 while (cnt < in_len) {
1404 if (in_ie[cnt] == authmode) {
1405 if ((authmode == _WPA_IE_ID_) &&
1406 (!memcmp(&in_ie[cnt + 2], &wpa_oui[0], 4))) {
1407 memcpy(&sec_ie[0], &in_ie[cnt],
1408 in_ie[cnt + 1] + 2);
1409 match = true;
1410 break;
1411 }
1412 if (authmode == _WPA2_IE_ID_) {
1413 memcpy(&sec_ie[0], &in_ie[cnt],
1414 in_ie[cnt + 1] + 2);
1415 match = true;
1416 break;
1417 }
1418 if (((authmode == _WPA_IE_ID_) &&
1419 (!memcmp(&in_ie[cnt + 2], &wpa_oui[0], 4))) ||
1420 (authmode == _WPA2_IE_ID_))
1421 memcpy(&bkup_ie[0], &in_ie[cnt],
1422 in_ie[cnt + 1] + 2);
1423 }
1424 cnt += in_ie[cnt + 1] + 2; /*get next*/
1425 }
1426 /*restruct WPA IE or WPA2 IE in sec_ie[] */
1427 if (match) {
1428 if (sec_ie[0] == _WPA_IE_ID_) {
1429 /* parsing SSN IE to select required encryption
1430 * algorithm, and set the bc/mc encryption algorithm
1431 */
1432 while (true) {
1433 /*check wpa_oui tag*/
1434 if (memcmp(&sec_ie[2], &wpa_oui[0], 4)) {
1435 match = false;
1436 break;
1437 }
1438 if ((sec_ie[6] != 0x01) || (sec_ie[7] != 0x0)) {
1439 /*IE Ver error*/
1440 match = false;
1441 break;
1442 }
1443 if (!memcmp(&sec_ie[8], &wpa_oui[0], 3)) {
1444 /* get bc/mc encryption type (group
1445 * key type)
1446 */
1447 switch (sec_ie[11]) {
1448 case 0x0: /*none*/
1449 psecuritypriv->XGrpPrivacy =
1450 _NO_PRIVACY_;
1451 break;
1452 case 0x1: /*WEP_40*/
1453 psecuritypriv->XGrpPrivacy =
1454 _WEP40_;
1455 break;
1456 case 0x2: /*TKIP*/
1457 psecuritypriv->XGrpPrivacy =
1458 _TKIP_;
1459 break;
1460 case 0x3: /*AESCCMP*/
1461 case 0x4:
1462 psecuritypriv->XGrpPrivacy =
1463 _AES_;
1464 break;
1465 case 0x5: /*WEP_104*/
1466 psecuritypriv->XGrpPrivacy =
1467 _WEP104_;
1468 break;
1469 }
1470 } else {
1471 match = false;
1472 break;
1473 }
1474 if (sec_ie[12] == 0x01) {
1475 /*check the unicast encryption type*/
1476 if (memcmp(&sec_ie[14],
1477 &uncst_oui[0], 4)) {
1478 match = false;
1479 break;
1480
1481 } /*else the uncst_oui is match*/
1482 } else { /*mixed mode, unicast_enc_type > 1*/
1483 /*select the uncst_oui and remove
1484 * the other uncst_oui
1485 */
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 */
1504 while (true) {
1505 if ((sec_ie[2] != 0x01) || (sec_ie[3] != 0x0)) {
1506 /*IE Ver error*/
1507 match = false;
1508 break;
1509 }
1510 if (!memcmp(&sec_ie[4], &uncst_oui[0], 3)) {
1511 /*get bc/mc encryption type*/
1512 switch (sec_ie[7]) {
1513 case 0x1: /*WEP_40*/
1514 psecuritypriv->XGrpPrivacy =
1515 _WEP40_;
1516 break;
1517 case 0x2: /*TKIP*/
1518 psecuritypriv->XGrpPrivacy =
1519 _TKIP_;
1520 break;
1521 case 0x4: /*AESWRAP*/
1522 psecuritypriv->XGrpPrivacy =
1523 _AES_;
1524 break;
1525 case 0x5: /*WEP_104*/
1526 psecuritypriv->XGrpPrivacy =
1527 _WEP104_;
1528 break;
1529 default: /*one*/
1530 psecuritypriv->XGrpPrivacy =
1531 _NO_PRIVACY_;
1532 break;
1533 }
1534 } else {
1535 match = false;
1536 break;
1537 }
1538 if (sec_ie[8] == 0x01) {
1539 /*check the unicast encryption type*/
1540 if (memcmp(&sec_ie[10],
1541 &uncst_oui[0], 4)) {
1542 match = false;
1543 break;
1544 } /*else the uncst_oui is match*/
1545 } else { /*mixed mode, unicast_enc_type > 1*/
1546 /*select the uncst_oui and remove the
1547 * other uncst_oui
1548 */
1549 cnt = sec_ie[8];
1550 remove_cnt = (cnt - 1) * 4;
1551 sec_ie[8] = 0x01;
1552 memcpy(&sec_ie[10], &uncst_oui[0], 4);
1553 /*remove the other unicast suit*/
1554 memcpy(&sec_ie[14],
1555 &sec_ie[14 + remove_cnt],
1556 (sec_ie[1] - 14 + 2 -
1557 remove_cnt));
1558 sec_ie[1] = sec_ie[1] - remove_cnt;
1559 }
1560 break;
1561 }
1562 }
1563 }
1564 if ((authmode == _WPA_IE_ID_) || (authmode == _WPA2_IE_ID_)) {
1565 /*copy fixed ie*/
1566 memcpy(out_ie, in_ie, 12);
1567 ielength = 12;
1568 /*copy RSN or SSN*/
1569 if (match) {
1570 memcpy(&out_ie[ielength], &sec_ie[0], sec_ie[1] + 2);
1571 ielength += sec_ie[1] + 2;
1572 if (authmode == _WPA2_IE_ID_) {
1573 /*the Pre-Authentication bit should be zero*/
1574 out_ie[ielength - 1] = 0;
1575 out_ie[ielength - 2] = 0;
1576 }
1577 r8712_report_sec_ie(adapter, authmode, sec_ie);
1578 }
1579 } else {
1580 /*copy fixed ie only*/
1581 memcpy(out_ie, in_ie, 12);
1582 ielength = 12;
1583 if (psecuritypriv->wps_phase) {
1584 memcpy(out_ie + ielength, psecuritypriv->wps_ie,
1585 psecuritypriv->wps_ie_len);
1586 ielength += psecuritypriv->wps_ie_len;
1587 }
1588 }
1589 iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
1590 if (iEntry < 0)
1591 return ielength;
1592 if (authmode == _WPA2_IE_ID_) {
1593 out_ie[ielength] = 1;
1594 ielength++;
1595 out_ie[ielength] = 0; /*PMKID count = 0x0100*/
1596 ielength++;
1597 memcpy(&out_ie[ielength],
1598 &psecuritypriv->PMKIDList[iEntry].PMKID, 16);
1599 ielength += 16;
1600 out_ie[13] += 18;/*PMKID length = 2+16*/
1601 }
1602 return ielength;
1603 }
1604
r8712_init_registrypriv_dev_network(struct _adapter * adapter)1605 void r8712_init_registrypriv_dev_network(struct _adapter *adapter)
1606 {
1607 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1608 struct eeprom_priv *peepriv = &adapter->eeprompriv;
1609 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1610 u8 *myhwaddr = myid(peepriv);
1611
1612 memcpy(pdev_network->MacAddress, myhwaddr, ETH_ALEN);
1613 memcpy(&pdev_network->Ssid, &pregistrypriv->ssid,
1614 sizeof(struct ndis_802_11_ssid));
1615 pdev_network->Configuration.Length =
1616 sizeof(struct NDIS_802_11_CONFIGURATION);
1617 pdev_network->Configuration.BeaconPeriod = 100;
1618 pdev_network->Configuration.FHConfig.Length = 0;
1619 pdev_network->Configuration.FHConfig.HopPattern = 0;
1620 pdev_network->Configuration.FHConfig.HopSet = 0;
1621 pdev_network->Configuration.FHConfig.DwellTime = 0;
1622 }
1623
r8712_update_registrypriv_dev_network(struct _adapter * adapter)1624 void r8712_update_registrypriv_dev_network(struct _adapter *adapter)
1625 {
1626 int sz = 0;
1627 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1628 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1629 struct security_priv *psecuritypriv = &adapter->securitypriv;
1630 struct wlan_network *cur_network = &adapter->mlmepriv.cur_network;
1631
1632 pdev_network->Privacy = cpu_to_le32(psecuritypriv->PrivacyAlgrthm
1633 > 0 ? 1 : 0); /* adhoc no 802.1x */
1634 pdev_network->Rssi = 0;
1635 switch (pregistrypriv->wireless_mode) {
1636 case WIRELESS_11B:
1637 pdev_network->NetworkTypeInUse = Ndis802_11DS;
1638 break;
1639 case WIRELESS_11G:
1640 case WIRELESS_11BG:
1641 pdev_network->NetworkTypeInUse = Ndis802_11OFDM24;
1642 break;
1643 case WIRELESS_11A:
1644 pdev_network->NetworkTypeInUse = Ndis802_11OFDM5;
1645 break;
1646 default:
1647 /* TODO */
1648 break;
1649 }
1650 pdev_network->Configuration.DSConfig = pregistrypriv->channel;
1651 if (cur_network->network.InfrastructureMode == Ndis802_11IBSS)
1652 pdev_network->Configuration.ATIMWindow = 3;
1653 pdev_network->InfrastructureMode = 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*/
r8712_joinbss_reset(struct _adapter * padapter)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 */
1672 phtpriv->ampdu_enable = false;/*reset to disabled*/
1673 for (i = 0; i < 16; i++)
1674 phtpriv->baddbareq_issued[i] = false;/*reset it*/
1675 if (phtpriv->ht_option) {
1676 /* validate usb rx aggregation */
1677 r8712_write8(padapter, 0x102500D9, 48);/*TH = 48 pages, 6k*/
1678 } else {
1679 /* invalidate usb rx aggregation */
1680 /* TH=1 => means that invalidate usb rx aggregation */
1681 r8712_write8(padapter, 0x102500D9, 1);
1682 }
1683 }
1684
1685 /*the function is >= passive_level*/
r8712_restructure_ht_ie(struct _adapter * padapter,u8 * in_ie,u8 * out_ie,uint in_len,uint * pout_len)1686 unsigned int r8712_restructure_ht_ie(struct _adapter *padapter, u8 *in_ie,
1687 u8 *out_ie, uint in_len, uint *pout_len)
1688 {
1689 u32 ielen, out_len;
1690 unsigned char *p;
1691 struct ieee80211_ht_cap ht_capie;
1692 unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
1693 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1694 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
1695 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1696
1697 phtpriv->ht_option = 0;
1698 p = r8712_get_ie(in_ie + 12, _HT_CAPABILITY_IE_, &ielen, in_len - 12);
1699 if (p && (ielen > 0)) {
1700 if (pqospriv->qos_option == 0) {
1701 out_len = *pout_len;
1702 r8712_set_ie(out_ie + out_len, _VENDOR_SPECIFIC_IE_,
1703 _WMM_IE_Length_, WMM_IE, pout_len);
1704 pqospriv->qos_option = 1;
1705 }
1706 out_len = *pout_len;
1707 memset(&ht_capie, 0, sizeof(struct ieee80211_ht_cap));
1708 ht_capie.cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH |
1709 IEEE80211_HT_CAP_SGI_20 |
1710 IEEE80211_HT_CAP_SGI_40 |
1711 IEEE80211_HT_CAP_TX_STBC |
1712 IEEE80211_HT_CAP_MAX_AMSDU |
1713 IEEE80211_HT_CAP_DSSSCCK40);
1714 ht_capie.ampdu_params_info = (IEEE80211_HT_CAP_AMPDU_FACTOR &
1715 0x03) | (IEEE80211_HT_CAP_AMPDU_DENSITY & 0x00);
1716 r8712_set_ie(out_ie + out_len, _HT_CAPABILITY_IE_,
1717 sizeof(struct ieee80211_ht_cap),
1718 (unsigned char *)&ht_capie, pout_len);
1719 phtpriv->ht_option = 1;
1720 }
1721 return phtpriv->ht_option;
1722 }
1723
1724 /* the function is > passive_level (in critical_section) */
update_ht_cap(struct _adapter * padapter,u8 * pie,uint ie_len)1725 static void update_ht_cap(struct _adapter *padapter, u8 *pie, uint ie_len)
1726 {
1727 u8 *p, max_ampdu_sz;
1728 int i;
1729 uint len;
1730 struct sta_info *bmc_sta, *psta;
1731 struct ieee80211_ht_cap *pht_capie;
1732 struct recv_reorder_ctrl *preorder_ctrl;
1733 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1734 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1735 struct registry_priv *pregistrypriv = &padapter->registrypriv;
1736 struct wlan_network *pcur_network = &(pmlmepriv->cur_network);
1737
1738 if (!phtpriv->ht_option)
1739 return;
1740 /* maybe needs check if ap supports rx ampdu. */
1741 if (!phtpriv->ampdu_enable &&
1742 (pregistrypriv->ampdu_enable == 1))
1743 phtpriv->ampdu_enable = true;
1744 /*check Max Rx A-MPDU Size*/
1745 len = 0;
1746 p = r8712_get_ie(pie + sizeof(struct NDIS_802_11_FIXED_IEs),
1747 _HT_CAPABILITY_IE_,
1748 &len, ie_len -
1749 sizeof(struct NDIS_802_11_FIXED_IEs));
1750 if (p && len > 0) {
1751 pht_capie = (struct ieee80211_ht_cap *)(p + 2);
1752 max_ampdu_sz = (pht_capie->ampdu_params_info &
1753 IEEE80211_HT_CAP_AMPDU_FACTOR);
1754 /* max_ampdu_sz (kbytes); */
1755 max_ampdu_sz = 1 << (max_ampdu_sz + 3);
1756 phtpriv->rx_ampdu_maxlen = max_ampdu_sz;
1757 }
1758 /* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info
1759 * if A-MPDU Rx is enabled, resetting rx_ordering_ctrl
1760 * wstart_b(indicate_seq) to default value=0xffff
1761 * todo: check if AP can send A-MPDU packets
1762 */
1763 bmc_sta = r8712_get_bcmc_stainfo(padapter);
1764 if (bmc_sta) {
1765 for (i = 0; i < 16; i++) {
1766 preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
1767 preorder_ctrl->indicate_seq = 0xffff;
1768 preorder_ctrl->wend_b = 0xffff;
1769 }
1770 }
1771 psta = r8712_get_stainfo(&padapter->stapriv,
1772 pcur_network->network.MacAddress);
1773 if (psta) {
1774 for (i = 0; i < 16; i++) {
1775 preorder_ctrl = &psta->recvreorder_ctrl[i];
1776 preorder_ctrl->indicate_seq = 0xffff;
1777 preorder_ctrl->wend_b = 0xffff;
1778 }
1779 }
1780 len = 0;
1781 p = r8712_get_ie(pie + sizeof(struct NDIS_802_11_FIXED_IEs),
1782 _HT_ADD_INFO_IE_, &len,
1783 ie_len - sizeof(struct NDIS_802_11_FIXED_IEs));
1784 }
1785
r8712_issue_addbareq_cmd(struct _adapter * padapter,int priority)1786 void r8712_issue_addbareq_cmd(struct _adapter *padapter, int priority)
1787 {
1788 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1789 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1790
1791 if ((phtpriv->ht_option == 1) && (phtpriv->ampdu_enable)) {
1792 if (!phtpriv->baddbareq_issued[priority]) {
1793 r8712_addbareq_cmd(padapter, (u8)priority);
1794 phtpriv->baddbareq_issued[priority] = true;
1795 }
1796 }
1797 }
1798
