1 // SPDX-License-Identifier: GPL-2.0
2 /******************************************************************************
3 * rtl871x_mlme.c
4 *
5 * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
6 * Linux device driver for RTL8192SU
7 *
8 * Modifications for inclusion into the Linux staging tree are
9 * Copyright(c) 2010 Larry Finger. All rights reserved.
10 *
11 * Contact information:
12 * WLAN FAE <wlanfae@realtek.com>
13 * Larry Finger <Larry.Finger@lwfinger.net>
14 *
15 ******************************************************************************/
16
17 #define _RTL871X_MLME_C_
18
19 #include <linux/etherdevice.h>
20
21 #include "osdep_service.h"
22 #include "drv_types.h"
23 #include "recv_osdep.h"
24 #include "xmit_osdep.h"
25 #include "mlme_osdep.h"
26 #include "sta_info.h"
27 #include "wifi.h"
28 #include "wlan_bssdef.h"
29
30 static void update_ht_cap(struct _adapter *padapter, u8 *pie, uint ie_len);
31
r8712_init_mlme_priv(struct _adapter * padapter)32 int r8712_init_mlme_priv(struct _adapter *padapter)
33 {
34 sint i;
35 u8 *pbuf;
36 struct wlan_network *pnetwork;
37 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
38
39 memset((u8 *)pmlmepriv, 0, sizeof(struct mlme_priv));
40 pmlmepriv->nic_hdl = (u8 *)padapter;
41 pmlmepriv->pscanned = NULL;
42 pmlmepriv->fw_state = 0;
43 pmlmepriv->cur_network.network.InfrastructureMode =
44 Ndis802_11AutoUnknown;
45 /* Maybe someday we should rename this variable to "active_mode"(Jeff)*/
46 pmlmepriv->passive_mode = 1; /* 1: active, 0: passive. */
47 spin_lock_init(&(pmlmepriv->lock));
48 spin_lock_init(&(pmlmepriv->lock2));
49 _init_queue(&(pmlmepriv->free_bss_pool));
50 _init_queue(&(pmlmepriv->scanned_queue));
51 set_scanned_network_val(pmlmepriv, 0);
52 memset(&pmlmepriv->assoc_ssid, 0, sizeof(struct ndis_802_11_ssid));
53 pbuf = kmalloc_array(MAX_BSS_CNT, sizeof(struct wlan_network),
54 GFP_ATOMIC);
55 if (!pbuf)
56 return -ENOMEM;
57 pmlmepriv->free_bss_buf = pbuf;
58 pnetwork = (struct wlan_network *)pbuf;
59 for (i = 0; i < MAX_BSS_CNT; i++) {
60 INIT_LIST_HEAD(&(pnetwork->list));
61 list_add_tail(&(pnetwork->list),
62 &(pmlmepriv->free_bss_pool.queue));
63 pnetwork++;
64 }
65 pmlmepriv->sitesurveyctrl.last_rx_pkts = 0;
66 pmlmepriv->sitesurveyctrl.last_tx_pkts = 0;
67 pmlmepriv->sitesurveyctrl.traffic_busy = false;
68 /* allocate DMA-able/Non-Page memory for cmd_buf and rsp_buf */
69 r8712_init_mlme_timer(padapter);
70 return 0;
71 }
72
_r8712_alloc_network(struct mlme_priv * pmlmepriv)73 struct wlan_network *_r8712_alloc_network(struct mlme_priv *pmlmepriv)
74 {
75 unsigned long irqL;
76 struct wlan_network *pnetwork;
77 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
78
79 spin_lock_irqsave(&free_queue->lock, irqL);
80 pnetwork = list_first_entry_or_null(&free_queue->queue,
81 struct wlan_network, list);
82 if (pnetwork) {
83 list_del_init(&pnetwork->list);
84 pnetwork->last_scanned = jiffies;
85 pmlmepriv->num_of_scanned++;
86 }
87 spin_unlock_irqrestore(&free_queue->lock, irqL);
88 return pnetwork;
89 }
90
_free_network(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork)91 static void _free_network(struct mlme_priv *pmlmepriv,
92 struct wlan_network *pnetwork)
93 {
94 u32 curr_time, delta_time;
95 unsigned long irqL;
96 struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
97
98 if (!pnetwork)
99 return;
100 if (pnetwork->fixed)
101 return;
102 curr_time = jiffies;
103 delta_time = (curr_time - (u32)pnetwork->last_scanned) / HZ;
104 if (delta_time < SCANQUEUE_LIFETIME)
105 return;
106 spin_lock_irqsave(&free_queue->lock, irqL);
107 list_del_init(&pnetwork->list);
108 list_add_tail(&pnetwork->list, &free_queue->queue);
109 pmlmepriv->num_of_scanned--;
110 spin_unlock_irqrestore(&free_queue->lock, irqL);
111 }
112
free_network_nolock(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork)113 static void free_network_nolock(struct mlme_priv *pmlmepriv,
114 struct wlan_network *pnetwork)
115 {
116 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
117
118 if (!pnetwork)
119 return;
120 if (pnetwork->fixed)
121 return;
122 list_del_init(&pnetwork->list);
123 list_add_tail(&pnetwork->list, &free_queue->queue);
124 pmlmepriv->num_of_scanned--;
125 }
126
127 /* return the wlan_network with the matching addr
128 * Shall be called under atomic context...
129 * to avoid possible racing condition...
130 */
r8712_find_network(struct __queue * scanned_queue,u8 * addr)131 static struct wlan_network *r8712_find_network(struct __queue *scanned_queue,
132 u8 *addr)
133 {
134 unsigned long irqL;
135 struct list_head *phead, *plist;
136 struct wlan_network *pnetwork = NULL;
137
138 if (is_zero_ether_addr(addr))
139 return NULL;
140 spin_lock_irqsave(&scanned_queue->lock, irqL);
141 phead = &scanned_queue->queue;
142 list_for_each(plist, phead) {
143 pnetwork = list_entry(plist, struct wlan_network, list);
144 if (!memcmp(addr, pnetwork->network.MacAddress, ETH_ALEN))
145 break;
146 }
147 if (plist == phead)
148 pnetwork = NULL;
149 spin_unlock_irqrestore(&scanned_queue->lock, irqL);
150 return pnetwork;
151 }
152
r8712_free_network_queue(struct _adapter * padapter)153 void r8712_free_network_queue(struct _adapter *padapter)
154 {
155 unsigned long irqL;
156 struct list_head *phead, *plist;
157 struct wlan_network *pnetwork;
158 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
159 struct __queue *scanned_queue = &pmlmepriv->scanned_queue;
160
161 spin_lock_irqsave(&scanned_queue->lock, irqL);
162 phead = &scanned_queue->queue;
163 plist = phead->next;
164 while (!end_of_queue_search(phead, plist)) {
165 pnetwork = container_of(plist, struct wlan_network, list);
166 plist = plist->next;
167 _free_network(pmlmepriv, pnetwork);
168 }
169 spin_unlock_irqrestore(&scanned_queue->lock, irqL);
170 }
171
r8712_if_up(struct _adapter * padapter)172 sint r8712_if_up(struct _adapter *padapter)
173 {
174 sint res;
175
176 if (padapter->driver_stopped || padapter->surprise_removed ||
177 !check_fwstate(&padapter->mlmepriv, _FW_LINKED)) {
178 res = false;
179 } else {
180 res = true;
181 }
182 return res;
183 }
184
r8712_generate_random_ibss(u8 * pibss)185 void r8712_generate_random_ibss(u8 *pibss)
186 {
187 u32 curtime = jiffies;
188
189 pibss[0] = 0x02; /*in ad-hoc mode bit1 must set to 1 */
190 pibss[1] = 0x11;
191 pibss[2] = 0x87;
192 pibss[3] = (u8)(curtime & 0xff);
193 pibss[4] = (u8)((curtime >> 8) & 0xff);
194 pibss[5] = (u8)((curtime >> 16) & 0xff);
195 }
196
r8712_get_wlan_bssid_ex_sz(struct wlan_bssid_ex * bss)197 uint r8712_get_wlan_bssid_ex_sz(struct wlan_bssid_ex *bss)
198 {
199 return sizeof(*bss) + bss->IELength - MAX_IE_SZ;
200 }
201
r8712_get_capability_from_ie(u8 * ie)202 u8 *r8712_get_capability_from_ie(u8 *ie)
203 {
204 return ie + 8 + 2;
205 }
206
r8712_free_mlme_priv(struct mlme_priv * pmlmepriv)207 void r8712_free_mlme_priv(struct mlme_priv *pmlmepriv)
208 {
209 kfree(pmlmepriv->free_bss_buf);
210 }
211
alloc_network(struct mlme_priv * pmlmepriv)212 static struct wlan_network *alloc_network(struct mlme_priv *pmlmepriv)
213 {
214 return _r8712_alloc_network(pmlmepriv);
215 }
216
r8712_is_same_ibss(struct _adapter * adapter,struct wlan_network * pnetwork)217 int r8712_is_same_ibss(struct _adapter *adapter, struct wlan_network *pnetwork)
218 {
219 int ret = true;
220 struct security_priv *psecuritypriv = &adapter->securitypriv;
221
222 if ((psecuritypriv->PrivacyAlgrthm != _NO_PRIVACY_) &&
223 (pnetwork->network.Privacy == cpu_to_le32(0)))
224 ret = false;
225 else if ((psecuritypriv->PrivacyAlgrthm == _NO_PRIVACY_) &&
226 (pnetwork->network.Privacy == cpu_to_le32(1)))
227 ret = false;
228 else
229 ret = true;
230 return ret;
231
232 }
233
is_same_network(struct wlan_bssid_ex * src,struct wlan_bssid_ex * dst)234 static int is_same_network(struct wlan_bssid_ex *src,
235 struct wlan_bssid_ex *dst)
236 {
237 u16 s_cap, d_cap;
238
239 memcpy((u8 *)&s_cap, r8712_get_capability_from_ie(src->IEs), 2);
240 memcpy((u8 *)&d_cap, r8712_get_capability_from_ie(dst->IEs), 2);
241 return (src->Ssid.SsidLength == dst->Ssid.SsidLength) &&
242 (src->Configuration.DSConfig ==
243 dst->Configuration.DSConfig) &&
244 ((!memcmp(src->MacAddress, dst->MacAddress,
245 ETH_ALEN))) &&
246 ((!memcmp(src->Ssid.Ssid,
247 dst->Ssid.Ssid,
248 src->Ssid.SsidLength))) &&
249 ((s_cap & WLAN_CAPABILITY_IBSS) ==
250 (d_cap & WLAN_CAPABILITY_IBSS)) &&
251 ((s_cap & WLAN_CAPABILITY_ESS) ==
252 (d_cap & WLAN_CAPABILITY_ESS));
253
254 }
255
r8712_get_oldest_wlan_network(struct __queue * scanned_queue)256 struct wlan_network *r8712_get_oldest_wlan_network(
257 struct __queue *scanned_queue)
258 {
259 struct list_head *plist, *phead;
260 struct wlan_network *pwlan = NULL;
261 struct wlan_network *oldest = NULL;
262
263 phead = &scanned_queue->queue;
264 plist = phead->next;
265 while (1) {
266 if (end_of_queue_search(phead, plist))
267 break;
268 pwlan = container_of(plist, struct wlan_network, list);
269 if (!pwlan->fixed) {
270 if (!oldest ||
271 time_after((unsigned long)oldest->last_scanned,
272 (unsigned long)pwlan->last_scanned))
273 oldest = pwlan;
274 }
275 plist = plist->next;
276 }
277 return oldest;
278 }
279
update_network(struct wlan_bssid_ex * dst,struct wlan_bssid_ex * src,struct _adapter * padapter)280 static void update_network(struct wlan_bssid_ex *dst,
281 struct wlan_bssid_ex *src,
282 struct _adapter *padapter)
283 {
284 u32 last_evm = 0, tmpVal;
285 struct smooth_rssi_data *sqd = &padapter->recvpriv.signal_qual_data;
286
287 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) &&
288 is_same_network(&(padapter->mlmepriv.cur_network.network), src)) {
289 if (padapter->recvpriv.signal_qual_data.total_num++ >=
290 PHY_LINKQUALITY_SLID_WIN_MAX) {
291 padapter->recvpriv.signal_qual_data.total_num =
292 PHY_LINKQUALITY_SLID_WIN_MAX;
293 last_evm = sqd->elements[sqd->index];
294 padapter->recvpriv.signal_qual_data.total_val -=
295 last_evm;
296 }
297 padapter->recvpriv.signal_qual_data.total_val += src->Rssi;
298
299 sqd->elements[sqd->index++] = src->Rssi;
300 if (padapter->recvpriv.signal_qual_data.index >=
301 PHY_LINKQUALITY_SLID_WIN_MAX)
302 padapter->recvpriv.signal_qual_data.index = 0;
303 /* <1> Showed on UI for user, in percentage. */
304 tmpVal = padapter->recvpriv.signal_qual_data.total_val /
305 padapter->recvpriv.signal_qual_data.total_num;
306 padapter->recvpriv.signal = (u8)tmpVal;
307
308 src->Rssi = padapter->recvpriv.signal;
309 } else {
310 src->Rssi = (src->Rssi + dst->Rssi) / 2;
311 }
312 memcpy((u8 *)dst, (u8 *)src, r8712_get_wlan_bssid_ex_sz(src));
313 }
314
update_current_network(struct _adapter * adapter,struct wlan_bssid_ex * pnetwork)315 static void update_current_network(struct _adapter *adapter,
316 struct wlan_bssid_ex *pnetwork)
317 {
318 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
319
320 if (is_same_network(&(pmlmepriv->cur_network.network), pnetwork)) {
321 update_network(&(pmlmepriv->cur_network.network),
322 pnetwork, adapter);
323 r8712_update_protection(adapter,
324 (pmlmepriv->cur_network.network.IEs) +
325 sizeof(struct NDIS_802_11_FIXED_IEs),
326 pmlmepriv->cur_network.network.IELength);
327 }
328 }
329
330 /* Caller must hold pmlmepriv->lock first */
update_scanned_network(struct _adapter * adapter,struct wlan_bssid_ex * target)331 static void update_scanned_network(struct _adapter *adapter,
332 struct wlan_bssid_ex *target)
333 {
334 struct list_head *plist, *phead;
335
336 u32 bssid_ex_sz;
337 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
338 struct __queue *queue = &pmlmepriv->scanned_queue;
339 struct wlan_network *pnetwork = NULL;
340 struct wlan_network *oldest = NULL;
341
342 phead = &queue->queue;
343 plist = phead->next;
344
345 while (1) {
346 if (end_of_queue_search(phead, plist))
347 break;
348
349 pnetwork = container_of(plist, struct wlan_network, list);
350 if (is_same_network(&pnetwork->network, target))
351 break;
352 if ((oldest == ((struct wlan_network *)0)) ||
353 time_after((unsigned long)oldest->last_scanned,
354 (unsigned long)pnetwork->last_scanned))
355 oldest = pnetwork;
356
357 plist = plist->next;
358 }
359
360 /* If we didn't find a match, then get a new network slot to initialize
361 * with this beacon's information
362 */
363 if (end_of_queue_search(phead, plist)) {
364 if (list_empty(&pmlmepriv->free_bss_pool.queue)) {
365 /* If there are no more slots, expire the oldest */
366 pnetwork = oldest;
367 target->Rssi = (pnetwork->network.Rssi +
368 target->Rssi) / 2;
369 memcpy(&pnetwork->network, target,
370 r8712_get_wlan_bssid_ex_sz(target));
371 pnetwork->last_scanned = jiffies;
372 } else {
373 /* Otherwise just pull from the free list */
374 /* update scan_time */
375 pnetwork = alloc_network(pmlmepriv);
376 if (!pnetwork)
377 return;
378 bssid_ex_sz = r8712_get_wlan_bssid_ex_sz(target);
379 target->Length = bssid_ex_sz;
380 memcpy(&pnetwork->network, target, bssid_ex_sz);
381 list_add_tail(&pnetwork->list, &queue->queue);
382 }
383 } else {
384 /* we have an entry and we are going to update it. But
385 * this entry may be already expired. In this case we
386 * do the same as we found a new net and call the new_net
387 * handler
388 */
389 update_network(&pnetwork->network, target, adapter);
390 pnetwork->last_scanned = jiffies;
391 }
392 }
393
rtl8711_add_network(struct _adapter * adapter,struct wlan_bssid_ex * pnetwork)394 static void rtl8711_add_network(struct _adapter *adapter,
395 struct wlan_bssid_ex *pnetwork)
396 {
397 unsigned long irqL;
398 struct mlme_priv *pmlmepriv = &(((struct _adapter *)adapter)->mlmepriv);
399 struct __queue *queue = &pmlmepriv->scanned_queue;
400
401 spin_lock_irqsave(&queue->lock, irqL);
402 update_current_network(adapter, pnetwork);
403 update_scanned_network(adapter, pnetwork);
404 spin_unlock_irqrestore(&queue->lock, irqL);
405 }
406
407 /*select the desired network based on the capability of the (i)bss.
408 * check items: (1) security
409 * (2) network_type
410 * (3) WMM
411 * (4) HT
412 * (5) others
413 */
is_desired_network(struct _adapter * adapter,struct wlan_network * pnetwork)414 static int is_desired_network(struct _adapter *adapter,
415 struct wlan_network *pnetwork)
416 {
417 u8 wps_ie[512];
418 uint wps_ielen;
419 int bselected = true;
420 struct security_priv *psecuritypriv = &adapter->securitypriv;
421
422 if (psecuritypriv->wps_phase) {
423 if (r8712_get_wps_ie(pnetwork->network.IEs,
424 pnetwork->network.IELength, wps_ie,
425 &wps_ielen))
426 return true;
427 return false;
428 }
429 if ((psecuritypriv->PrivacyAlgrthm != _NO_PRIVACY_) &&
430 (pnetwork->network.Privacy == 0))
431 bselected = false;
432 if (check_fwstate(&adapter->mlmepriv, WIFI_ADHOC_STATE)) {
433 if (pnetwork->network.InfrastructureMode !=
434 adapter->mlmepriv.cur_network.network.InfrastructureMode)
435 bselected = false;
436 }
437 return bselected;
438 }
439
440 /* TODO: Perry : For Power Management */
r8712_atimdone_event_callback(struct _adapter * adapter,u8 * pbuf)441 void r8712_atimdone_event_callback(struct _adapter *adapter, u8 *pbuf)
442 {
443 }
444
r8712_survey_event_callback(struct _adapter * adapter,u8 * pbuf)445 void r8712_survey_event_callback(struct _adapter *adapter, u8 *pbuf)
446 {
447 unsigned long flags;
448 u32 len;
449 struct wlan_bssid_ex *pnetwork;
450 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
451
452 pnetwork = (struct wlan_bssid_ex *)pbuf;
453 #ifdef __BIG_ENDIAN
454 /* endian_convert */
455 pnetwork->Length = le32_to_cpu(pnetwork->Length);
456 pnetwork->Ssid.SsidLength = le32_to_cpu(pnetwork->Ssid.SsidLength);
457 pnetwork->Privacy = le32_to_cpu(pnetwork->Privacy);
458 pnetwork->Rssi = le32_to_cpu(pnetwork->Rssi);
459 pnetwork->NetworkTypeInUse = le32_to_cpu(pnetwork->NetworkTypeInUse);
460 pnetwork->Configuration.ATIMWindow =
461 le32_to_cpu(pnetwork->Configuration.ATIMWindow);
462 pnetwork->Configuration.BeaconPeriod =
463 le32_to_cpu(pnetwork->Configuration.BeaconPeriod);
464 pnetwork->Configuration.DSConfig =
465 le32_to_cpu(pnetwork->Configuration.DSConfig);
466 pnetwork->Configuration.FHConfig.DwellTime =
467 le32_to_cpu(pnetwork->Configuration.FHConfig.DwellTime);
468 pnetwork->Configuration.FHConfig.HopPattern =
469 le32_to_cpu(pnetwork->Configuration.FHConfig.HopPattern);
470 pnetwork->Configuration.FHConfig.HopSet =
471 le32_to_cpu(pnetwork->Configuration.FHConfig.HopSet);
472 pnetwork->Configuration.FHConfig.Length =
473 le32_to_cpu(pnetwork->Configuration.FHConfig.Length);
474 pnetwork->Configuration.Length =
475 le32_to_cpu(pnetwork->Configuration.Length);
476 pnetwork->InfrastructureMode =
477 le32_to_cpu(pnetwork->InfrastructureMode);
478 pnetwork->IELength = le32_to_cpu(pnetwork->IELength);
479 #endif
480 len = r8712_get_wlan_bssid_ex_sz(pnetwork);
481 if (len > sizeof(struct wlan_bssid_ex))
482 return;
483 spin_lock_irqsave(&pmlmepriv->lock2, flags);
484 /* update IBSS_network 's timestamp */
485 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) {
486 if (!memcmp(&(pmlmepriv->cur_network.network.MacAddress),
487 pnetwork->MacAddress, ETH_ALEN)) {
488 struct wlan_network *ibss_wlan = NULL;
489
490 memcpy(pmlmepriv->cur_network.network.IEs,
491 pnetwork->IEs, 8);
492 ibss_wlan = r8712_find_network(
493 &pmlmepriv->scanned_queue,
494 pnetwork->MacAddress);
495 if (ibss_wlan) {
496 memcpy(ibss_wlan->network.IEs,
497 pnetwork->IEs, 8);
498 goto exit;
499 }
500 }
501 }
502 /* lock pmlmepriv->lock when you accessing network_q */
503 if (!check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
504 if (pnetwork->Ssid.Ssid[0] != 0) {
505 rtl8711_add_network(adapter, pnetwork);
506 } else {
507 pnetwork->Ssid.SsidLength = 8;
508 memcpy(pnetwork->Ssid.Ssid, "<hidden>", 8);
509 rtl8711_add_network(adapter, pnetwork);
510 }
511 }
512 exit:
513 spin_unlock_irqrestore(&pmlmepriv->lock2, flags);
514 }
515
r8712_surveydone_event_callback(struct _adapter * adapter,u8 * pbuf)516 void r8712_surveydone_event_callback(struct _adapter *adapter, u8 *pbuf)
517 {
518 unsigned long irqL;
519 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
520
521 spin_lock_irqsave(&pmlmepriv->lock, irqL);
522
523 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
524 del_timer(&pmlmepriv->scan_to_timer);
525
526 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
527 }
528
529 if (pmlmepriv->to_join) {
530 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
531 if (!check_fwstate(pmlmepriv, _FW_LINKED)) {
532 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
533
534 if (!r8712_select_and_join_from_scan(pmlmepriv)) {
535 mod_timer(&pmlmepriv->assoc_timer, jiffies +
536 msecs_to_jiffies(MAX_JOIN_TIMEOUT));
537 } else {
538 struct wlan_bssid_ex *pdev_network =
539 &(adapter->registrypriv.dev_network);
540 u8 *pibss =
541 adapter->registrypriv.dev_network.MacAddress;
542 pmlmepriv->fw_state ^= _FW_UNDER_SURVEY;
543 memcpy(&pdev_network->Ssid,
544 &pmlmepriv->assoc_ssid,
545 sizeof(struct
546 ndis_802_11_ssid));
547 r8712_update_registrypriv_dev_network
548 (adapter);
549 r8712_generate_random_ibss(pibss);
550 pmlmepriv->fw_state =
551 WIFI_ADHOC_MASTER_STATE;
552 pmlmepriv->to_join = false;
553 }
554 }
555 } else {
556 pmlmepriv->to_join = false;
557 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
558 if (!r8712_select_and_join_from_scan(pmlmepriv))
559 mod_timer(&pmlmepriv->assoc_timer, jiffies +
560 msecs_to_jiffies(MAX_JOIN_TIMEOUT));
561 else
562 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
563 }
564 }
565 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
566 }
567
568 /*
569 *r8712_free_assoc_resources: the caller has to lock pmlmepriv->lock
570 */
r8712_free_assoc_resources(struct _adapter * adapter)571 void r8712_free_assoc_resources(struct _adapter *adapter)
572 {
573 unsigned long irqL;
574 struct wlan_network *pwlan = NULL;
575 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
576 struct sta_priv *pstapriv = &adapter->stapriv;
577 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
578
579 pwlan = r8712_find_network(&pmlmepriv->scanned_queue,
580 tgt_network->network.MacAddress);
581
582 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE)) {
583 struct sta_info *psta;
584
585 psta = r8712_get_stainfo(&adapter->stapriv,
586 tgt_network->network.MacAddress);
587
588 spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
589 r8712_free_stainfo(adapter, psta);
590 spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
591 }
592
593 if (check_fwstate(pmlmepriv,
594 WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE | WIFI_AP_STATE))
595 r8712_free_all_stainfo(adapter);
596 if (pwlan)
597 pwlan->fixed = false;
598
599 if (((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) &&
600 (adapter->stapriv.asoc_sta_count == 1)))
601 free_network_nolock(pmlmepriv, pwlan);
602 }
603
604 /*
605 * r8712_indicate_connect: the caller has to lock pmlmepriv->lock
606 */
r8712_indicate_connect(struct _adapter * padapter)607 void r8712_indicate_connect(struct _adapter *padapter)
608 {
609 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
610
611 pmlmepriv->to_join = false;
612 set_fwstate(pmlmepriv, _FW_LINKED);
613 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_LINK);
614 r8712_os_indicate_connect(padapter);
615 if (padapter->registrypriv.power_mgnt > PS_MODE_ACTIVE)
616 mod_timer(&pmlmepriv->dhcp_timer,
617 jiffies + msecs_to_jiffies(60000));
618 }
619
620 /*
621 * r8712_ind_disconnect: the caller has to lock pmlmepriv->lock
622 */
r8712_ind_disconnect(struct _adapter * padapter)623 void r8712_ind_disconnect(struct _adapter *padapter)
624 {
625 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
626
627 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
628 _clr_fwstate_(pmlmepriv, _FW_LINKED);
629 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_NO_LINK);
630 r8712_os_indicate_disconnect(padapter);
631 }
632 if (padapter->pwrctrlpriv.pwr_mode !=
633 padapter->registrypriv.power_mgnt) {
634 del_timer(&pmlmepriv->dhcp_timer);
635 r8712_set_ps_mode(padapter, padapter->registrypriv.power_mgnt,
636 padapter->registrypriv.smart_ps);
637 }
638 }
639
640 /*Notes:
641 *pnetwork : returns from r8712_joinbss_event_callback
642 *ptarget_wlan: found from scanned_queue
643 *if join_res > 0, for (fw_state==WIFI_STATION_STATE), we check if
644 * "ptarget_sta" & "ptarget_wlan" exist.
645 *if join_res > 0, for (fw_state==WIFI_ADHOC_STATE), we only check
646 * if "ptarget_wlan" exist.
647 *if join_res > 0, update "cur_network->network" from
648 * "pnetwork->network" if (ptarget_wlan !=NULL).
649 */
r8712_joinbss_event_callback(struct _adapter * adapter,u8 * pbuf)650 void r8712_joinbss_event_callback(struct _adapter *adapter, u8 *pbuf)
651 {
652 unsigned long irqL = 0, irqL2;
653 struct sta_info *ptarget_sta = NULL, *pcur_sta = NULL;
654 struct sta_priv *pstapriv = &adapter->stapriv;
655 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
656 struct wlan_network *cur_network = &pmlmepriv->cur_network;
657 struct wlan_network *pcur_wlan = NULL, *ptarget_wlan = NULL;
658 unsigned int the_same_macaddr = false;
659 struct wlan_network *pnetwork;
660
661 if (sizeof(struct list_head) == 4 * sizeof(u32)) {
662 pnetwork = kmalloc(sizeof(struct wlan_network), GFP_ATOMIC);
663 if (!pnetwork)
664 return;
665 memcpy((u8 *)pnetwork + 16, (u8 *)pbuf + 8,
666 sizeof(struct wlan_network) - 16);
667 } else {
668 pnetwork = (struct wlan_network *)pbuf;
669 }
670
671 #ifdef __BIG_ENDIAN
672 /* endian_convert */
673 pnetwork->join_res = le32_to_cpu(pnetwork->join_res);
674 pnetwork->network_type = le32_to_cpu(pnetwork->network_type);
675 pnetwork->network.Length = le32_to_cpu(pnetwork->network.Length);
676 pnetwork->network.Ssid.SsidLength =
677 le32_to_cpu(pnetwork->network.Ssid.SsidLength);
678 pnetwork->network.Privacy = le32_to_cpu(pnetwork->network.Privacy);
679 pnetwork->network.Rssi = le32_to_cpu(pnetwork->network.Rssi);
680 pnetwork->network.NetworkTypeInUse =
681 le32_to_cpu(pnetwork->network.NetworkTypeInUse);
682 pnetwork->network.Configuration.ATIMWindow =
683 le32_to_cpu(pnetwork->network.Configuration.ATIMWindow);
684 pnetwork->network.Configuration.BeaconPeriod =
685 le32_to_cpu(pnetwork->network.Configuration.BeaconPeriod);
686 pnetwork->network.Configuration.DSConfig =
687 le32_to_cpu(pnetwork->network.Configuration.DSConfig);
688 pnetwork->network.Configuration.FHConfig.DwellTime =
689 le32_to_cpu(pnetwork->network.Configuration.FHConfig.DwellTime);
690 pnetwork->network.Configuration.FHConfig.HopPattern =
691 le32_to_cpu(pnetwork->network.Configuration.FHConfig.HopPattern);
692 pnetwork->network.Configuration.FHConfig.HopSet =
693 le32_to_cpu(pnetwork->network.Configuration.FHConfig.HopSet);
694 pnetwork->network.Configuration.FHConfig.Length =
695 le32_to_cpu(pnetwork->network.Configuration.FHConfig.Length);
696 pnetwork->network.Configuration.Length =
697 le32_to_cpu(pnetwork->network.Configuration.Length);
698 pnetwork->network.InfrastructureMode =
699 le32_to_cpu(pnetwork->network.InfrastructureMode);
700 pnetwork->network.IELength = le32_to_cpu(pnetwork->network.IELength);
701 #endif
702
703 the_same_macaddr = !memcmp(pnetwork->network.MacAddress,
704 cur_network->network.MacAddress, ETH_ALEN);
705 pnetwork->network.Length =
706 r8712_get_wlan_bssid_ex_sz(&pnetwork->network);
707 spin_lock_irqsave(&pmlmepriv->lock, irqL);
708 if (pnetwork->network.Length > sizeof(struct wlan_bssid_ex))
709 goto ignore_joinbss_callback;
710 if (pnetwork->join_res > 0) {
711 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
712 /*s1. find ptarget_wlan*/
713 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
714 if (the_same_macaddr) {
715 ptarget_wlan =
716 r8712_find_network(&pmlmepriv->scanned_queue,
717 cur_network->network.MacAddress);
718 } else {
719 pcur_wlan =
720 r8712_find_network(&pmlmepriv->scanned_queue,
721 cur_network->network.MacAddress);
722 if (pcur_wlan)
723 pcur_wlan->fixed = false;
724
725 pcur_sta = r8712_get_stainfo(pstapriv,
726 cur_network->network.MacAddress);
727 spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL2);
728 r8712_free_stainfo(adapter, pcur_sta);
729 spin_unlock_irqrestore(&(pstapriv->sta_hash_lock), irqL2);
730
731 ptarget_wlan =
732 r8712_find_network(&pmlmepriv->scanned_queue,
733 pnetwork->network.MacAddress);
734 if (ptarget_wlan)
735 ptarget_wlan->fixed = true;
736 }
737 } else {
738 ptarget_wlan = r8712_find_network(&pmlmepriv->scanned_queue,
739 pnetwork->network.MacAddress);
740 if (ptarget_wlan)
741 ptarget_wlan->fixed = true;
742 }
743
744 if (!ptarget_wlan) {
745 if (check_fwstate(pmlmepriv,
746 _FW_UNDER_LINKING))
747 pmlmepriv->fw_state ^=
748 _FW_UNDER_LINKING;
749 goto ignore_joinbss_callback;
750 }
751
752 /*s2. find ptarget_sta & update ptarget_sta*/
753 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
754 if (the_same_macaddr) {
755 ptarget_sta =
756 r8712_get_stainfo(pstapriv,
757 pnetwork->network.MacAddress);
758 if (!ptarget_sta)
759 ptarget_sta =
760 r8712_alloc_stainfo(pstapriv,
761 pnetwork->network.MacAddress);
762 } else {
763 ptarget_sta =
764 r8712_alloc_stainfo(pstapriv,
765 pnetwork->network.MacAddress);
766 }
767 if (ptarget_sta) /*update ptarget_sta*/ {
768 ptarget_sta->aid = pnetwork->join_res;
769 ptarget_sta->qos_option = 1;
770 ptarget_sta->mac_id = 5;
771 if (adapter->securitypriv.AuthAlgrthm == 2) {
772 adapter->securitypriv.binstallGrpkey = false;
773 adapter->securitypriv.busetkipkey = false;
774 adapter->securitypriv.bgrpkey_handshake = false;
775 ptarget_sta->ieee8021x_blocked = true;
776 ptarget_sta->XPrivacy =
777 adapter->securitypriv.PrivacyAlgrthm;
778 memset((u8 *)&ptarget_sta->x_UncstKey,
779 0,
780 sizeof(union Keytype));
781 memset((u8 *)&ptarget_sta->tkiprxmickey,
782 0,
783 sizeof(union Keytype));
784 memset((u8 *)&ptarget_sta->tkiptxmickey,
785 0,
786 sizeof(union Keytype));
787 memset((u8 *)&ptarget_sta->txpn,
788 0,
789 sizeof(union pn48));
790 memset((u8 *)&ptarget_sta->rxpn,
791 0,
792 sizeof(union pn48));
793 }
794 } else {
795 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING))
796 pmlmepriv->fw_state ^=
797 _FW_UNDER_LINKING;
798 goto ignore_joinbss_callback;
799 }
800 }
801
802 /*s3. update cur_network & indicate connect*/
803 memcpy(&cur_network->network, &pnetwork->network,
804 pnetwork->network.Length);
805 cur_network->aid = pnetwork->join_res;
806 /*update fw_state will clr _FW_UNDER_LINKING*/
807 switch (pnetwork->network.InfrastructureMode) {
808 case Ndis802_11Infrastructure:
809 pmlmepriv->fw_state = WIFI_STATION_STATE;
810 break;
811 case Ndis802_11IBSS:
812 pmlmepriv->fw_state = WIFI_ADHOC_STATE;
813 break;
814 default:
815 pmlmepriv->fw_state = WIFI_NULL_STATE;
816 break;
817 }
818 r8712_update_protection(adapter,
819 (cur_network->network.IEs) +
820 sizeof(struct NDIS_802_11_FIXED_IEs),
821 (cur_network->network.IELength));
822 /*TODO: update HT_Capability*/
823 update_ht_cap(adapter, cur_network->network.IEs,
824 cur_network->network.IELength);
825 /*indicate connect*/
826 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE))
827 r8712_indicate_connect(adapter);
828 del_timer(&pmlmepriv->assoc_timer);
829 } else {
830 goto ignore_joinbss_callback;
831 }
832 } else {
833 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
834 mod_timer(&pmlmepriv->assoc_timer,
835 jiffies + msecs_to_jiffies(1));
836 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
837 }
838 }
839 ignore_joinbss_callback:
840 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
841 if (sizeof(struct list_head) == 4 * sizeof(u32))
842 kfree(pnetwork);
843 }
844
r8712_stassoc_event_callback(struct _adapter * adapter,u8 * pbuf)845 void r8712_stassoc_event_callback(struct _adapter *adapter, u8 *pbuf)
846 {
847 unsigned long irqL;
848 struct sta_info *psta;
849 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
850 struct stassoc_event *pstassoc = (struct stassoc_event *)pbuf;
851
852 /* to do: */
853 if (!r8712_access_ctrl(&adapter->acl_list, pstassoc->macaddr))
854 return;
855 psta = r8712_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
856 if (psta) {
857 /*the sta have been in sta_info_queue => do nothing
858 *(between drv has received this event before and
859 * fw have not yet to set key to CAM_ENTRY)
860 */
861 return;
862 }
863
864 psta = r8712_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
865 if (!psta)
866 return;
867 /* to do : init sta_info variable */
868 psta->qos_option = 0;
869 psta->mac_id = le32_to_cpu(pstassoc->cam_id);
870 /* psta->aid = (uint)pstassoc->cam_id; */
871
872 if (adapter->securitypriv.AuthAlgrthm == 2)
873 psta->XPrivacy = adapter->securitypriv.PrivacyAlgrthm;
874 psta->ieee8021x_blocked = false;
875 spin_lock_irqsave(&pmlmepriv->lock, irqL);
876 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
877 check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
878 if (adapter->stapriv.asoc_sta_count == 2) {
879 /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
880 r8712_indicate_connect(adapter);
881 }
882 }
883 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
884 }
885
r8712_stadel_event_callback(struct _adapter * adapter,u8 * pbuf)886 void r8712_stadel_event_callback(struct _adapter *adapter, u8 *pbuf)
887 {
888 unsigned long irqL, irqL2;
889 struct sta_info *psta;
890 struct wlan_network *pwlan = NULL;
891 struct wlan_bssid_ex *pdev_network = NULL;
892 u8 *pibss = NULL;
893 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
894 struct stadel_event *pstadel = (struct stadel_event *)pbuf;
895 struct sta_priv *pstapriv = &adapter->stapriv;
896 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
897
898 spin_lock_irqsave(&pmlmepriv->lock, irqL2);
899 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
900 r8712_ind_disconnect(adapter);
901 r8712_free_assoc_resources(adapter);
902 }
903 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE |
904 WIFI_ADHOC_STATE)) {
905 psta = r8712_get_stainfo(&adapter->stapriv, pstadel->macaddr);
906 spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
907 r8712_free_stainfo(adapter, psta);
908 spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
909 if (adapter->stapriv.asoc_sta_count == 1) {
910 /*a sta + bc/mc_stainfo (not Ibss_stainfo) */
911 pwlan = r8712_find_network(&pmlmepriv->scanned_queue,
912 tgt_network->network.MacAddress);
913 if (pwlan) {
914 pwlan->fixed = false;
915 free_network_nolock(pmlmepriv, pwlan);
916 }
917 /*re-create ibss*/
918 pdev_network = &(adapter->registrypriv.dev_network);
919 pibss = adapter->registrypriv.dev_network.MacAddress;
920 memcpy(pdev_network, &tgt_network->network,
921 r8712_get_wlan_bssid_ex_sz(&tgt_network->network));
922 memcpy(&pdev_network->Ssid,
923 &pmlmepriv->assoc_ssid,
924 sizeof(struct ndis_802_11_ssid));
925 r8712_update_registrypriv_dev_network(adapter);
926 r8712_generate_random_ibss(pibss);
927 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
928 _clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
929 set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
930 }
931 }
932 }
933 spin_unlock_irqrestore(&pmlmepriv->lock, irqL2);
934 }
935
r8712_cpwm_event_callback(struct _adapter * adapter,u8 * pbuf)936 void r8712_cpwm_event_callback(struct _adapter *adapter, u8 *pbuf)
937 {
938 struct reportpwrstate_parm *preportpwrstate =
939 (struct reportpwrstate_parm *)pbuf;
940
941 preportpwrstate->state |= (u8)(adapter->pwrctrlpriv.cpwm_tog + 0x80);
942 r8712_cpwm_int_hdl(adapter, preportpwrstate);
943 }
944
945 /* When the Netgear 3500 AP is with WPA2PSK-AES mode, it will send
946 * the ADDBA req frame with start seq control = 0 to wifi client after
947 * the WPA handshake and the sequence number of following data packet
948 * will be 0. In this case, the Rx reorder sequence is not longer than 0
949 * and the WiFi client will drop the data with seq number 0.
950 * So, the 8712 firmware has to inform driver with receiving the
951 * ADDBA-Req frame so that the driver can reset the
952 * sequence value of Rx reorder control.
953 */
r8712_got_addbareq_event_callback(struct _adapter * adapter,u8 * pbuf)954 void r8712_got_addbareq_event_callback(struct _adapter *adapter, u8 *pbuf)
955 {
956 struct ADDBA_Req_Report_parm *pAddbareq_pram =
957 (struct ADDBA_Req_Report_parm *)pbuf;
958 struct sta_info *psta;
959 struct sta_priv *pstapriv = &adapter->stapriv;
960 struct recv_reorder_ctrl *precvreorder_ctrl = NULL;
961
962 psta = r8712_get_stainfo(pstapriv, pAddbareq_pram->MacAddress);
963 if (psta) {
964 precvreorder_ctrl =
965 &psta->recvreorder_ctrl[pAddbareq_pram->tid];
966 /* set the indicate_seq to 0xffff so that the rx reorder
967 * can store any following data packet.
968 */
969 precvreorder_ctrl->indicate_seq = 0xffff;
970 }
971 }
972
r8712_wpspbc_event_callback(struct _adapter * adapter,u8 * pbuf)973 void r8712_wpspbc_event_callback(struct _adapter *adapter, u8 *pbuf)
974 {
975 if (!adapter->securitypriv.wps_hw_pbc_pressed)
976 adapter->securitypriv.wps_hw_pbc_pressed = true;
977 }
978
_r8712_sitesurvey_ctrl_handler(struct _adapter * adapter)979 void _r8712_sitesurvey_ctrl_handler(struct _adapter *adapter)
980 {
981 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
982 struct sitesurvey_ctrl *psitesurveyctrl = &pmlmepriv->sitesurveyctrl;
983 struct registry_priv *pregistrypriv = &adapter->registrypriv;
984 u64 current_tx_pkts;
985 uint current_rx_pkts;
986
987 current_tx_pkts = (adapter->xmitpriv.tx_pkts) -
988 (psitesurveyctrl->last_tx_pkts);
989 current_rx_pkts = (adapter->recvpriv.rx_pkts) -
990 (psitesurveyctrl->last_rx_pkts);
991 psitesurveyctrl->last_tx_pkts = adapter->xmitpriv.tx_pkts;
992 psitesurveyctrl->last_rx_pkts = adapter->recvpriv.rx_pkts;
993 if ((current_tx_pkts > pregistrypriv->busy_thresh) ||
994 (current_rx_pkts > pregistrypriv->busy_thresh))
995 psitesurveyctrl->traffic_busy = true;
996 else
997 psitesurveyctrl->traffic_busy = false;
998 }
999
_r8712_join_timeout_handler(struct _adapter * adapter)1000 void _r8712_join_timeout_handler(struct _adapter *adapter)
1001 {
1002 unsigned long irqL;
1003 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1004
1005 if (adapter->driver_stopped || adapter->surprise_removed)
1006 return;
1007 spin_lock_irqsave(&pmlmepriv->lock, irqL);
1008 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1009 pmlmepriv->to_join = false;
1010 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1011 r8712_os_indicate_disconnect(adapter);
1012 _clr_fwstate_(pmlmepriv, _FW_LINKED);
1013 }
1014 if (adapter->pwrctrlpriv.pwr_mode != adapter->registrypriv.power_mgnt) {
1015 r8712_set_ps_mode(adapter, adapter->registrypriv.power_mgnt,
1016 adapter->registrypriv.smart_ps);
1017 }
1018 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
1019 }
1020
r8712_scan_timeout_handler(struct _adapter * adapter)1021 void r8712_scan_timeout_handler (struct _adapter *adapter)
1022 {
1023 unsigned long irqL;
1024 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1025
1026 spin_lock_irqsave(&pmlmepriv->lock, irqL);
1027 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
1028 pmlmepriv->to_join = false; /* scan fail, so clear to_join flag */
1029 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
1030 }
1031
_r8712_dhcp_timeout_handler(struct _adapter * adapter)1032 void _r8712_dhcp_timeout_handler (struct _adapter *adapter)
1033 {
1034 if (adapter->driver_stopped || adapter->surprise_removed)
1035 return;
1036 if (adapter->pwrctrlpriv.pwr_mode != adapter->registrypriv.power_mgnt)
1037 r8712_set_ps_mode(adapter, adapter->registrypriv.power_mgnt,
1038 adapter->registrypriv.smart_ps);
1039 }
1040
r8712_select_and_join_from_scan(struct mlme_priv * pmlmepriv)1041 int r8712_select_and_join_from_scan(struct mlme_priv *pmlmepriv)
1042 {
1043 struct list_head *phead;
1044 unsigned char *dst_ssid, *src_ssid;
1045 struct _adapter *adapter;
1046 struct __queue *queue = NULL;
1047 struct wlan_network *pnetwork = NULL;
1048 struct wlan_network *pnetwork_max_rssi = NULL;
1049
1050 adapter = (struct _adapter *)pmlmepriv->nic_hdl;
1051 queue = &pmlmepriv->scanned_queue;
1052 phead = &queue->queue;
1053 pmlmepriv->pscanned = phead->next;
1054 while (1) {
1055 if (end_of_queue_search(phead, pmlmepriv->pscanned)) {
1056 if (pmlmepriv->assoc_by_rssi && pnetwork_max_rssi) {
1057 pnetwork = pnetwork_max_rssi;
1058 goto ask_for_joinbss;
1059 }
1060 return -EINVAL;
1061 }
1062 pnetwork = container_of(pmlmepriv->pscanned,
1063 struct wlan_network, list);
1064 pmlmepriv->pscanned = pmlmepriv->pscanned->next;
1065 if (pmlmepriv->assoc_by_bssid) {
1066 dst_ssid = pnetwork->network.MacAddress;
1067 src_ssid = pmlmepriv->assoc_bssid;
1068 if (!memcmp(dst_ssid, src_ssid, ETH_ALEN)) {
1069 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1070 if (is_same_network(&pmlmepriv->cur_network.network,
1071 &pnetwork->network)) {
1072 _clr_fwstate_(pmlmepriv,
1073 _FW_UNDER_LINKING);
1074 /*r8712_indicate_connect again*/
1075 r8712_indicate_connect(adapter);
1076 return 2;
1077 }
1078 r8712_disassoc_cmd(adapter);
1079 r8712_ind_disconnect(adapter);
1080 r8712_free_assoc_resources(adapter);
1081 }
1082 goto ask_for_joinbss;
1083 }
1084 } else if (pmlmepriv->assoc_ssid.SsidLength == 0) {
1085 goto ask_for_joinbss;
1086 }
1087 dst_ssid = pnetwork->network.Ssid.Ssid;
1088 src_ssid = pmlmepriv->assoc_ssid.Ssid;
1089 if ((pnetwork->network.Ssid.SsidLength ==
1090 pmlmepriv->assoc_ssid.SsidLength) &&
1091 (!memcmp(dst_ssid, src_ssid,
1092 pmlmepriv->assoc_ssid.SsidLength))) {
1093 if (pmlmepriv->assoc_by_rssi) {
1094 /* if the ssid is the same, select the bss
1095 * which has the max rssi
1096 */
1097 if (pnetwork_max_rssi) {
1098 if (pnetwork->network.Rssi >
1099 pnetwork_max_rssi->network.Rssi)
1100 pnetwork_max_rssi = pnetwork;
1101 } else {
1102 pnetwork_max_rssi = pnetwork;
1103 }
1104 } else if (is_desired_network(adapter, pnetwork)) {
1105 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1106 r8712_disassoc_cmd(adapter);
1107 r8712_free_assoc_resources(adapter);
1108 }
1109 goto ask_for_joinbss;
1110 }
1111 }
1112 }
1113
1114 ask_for_joinbss:
1115 return r8712_joinbss_cmd(adapter, pnetwork);
1116 }
1117
r8712_set_auth(struct _adapter * adapter,struct security_priv * psecuritypriv)1118 int r8712_set_auth(struct _adapter *adapter,
1119 struct security_priv *psecuritypriv)
1120 {
1121 struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
1122 struct cmd_obj *pcmd;
1123 struct setauth_parm *psetauthparm;
1124
1125 pcmd = kmalloc(sizeof(*pcmd), GFP_ATOMIC);
1126 if (!pcmd)
1127 return -ENOMEM;
1128
1129 psetauthparm = kzalloc(sizeof(*psetauthparm), GFP_ATOMIC);
1130 if (!psetauthparm) {
1131 kfree(pcmd);
1132 return -ENOMEM;
1133 }
1134 psetauthparm->mode = (u8)psecuritypriv->AuthAlgrthm;
1135 pcmd->cmdcode = _SetAuth_CMD_;
1136 pcmd->parmbuf = (unsigned char *)psetauthparm;
1137 pcmd->cmdsz = sizeof(struct setauth_parm);
1138 pcmd->rsp = NULL;
1139 pcmd->rspsz = 0;
1140 INIT_LIST_HEAD(&pcmd->list);
1141 r8712_enqueue_cmd(pcmdpriv, pcmd);
1142 return 0;
1143 }
1144
r8712_set_key(struct _adapter * adapter,struct security_priv * psecuritypriv,sint keyid)1145 int r8712_set_key(struct _adapter *adapter,
1146 struct security_priv *psecuritypriv,
1147 sint keyid)
1148 {
1149 struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
1150 struct cmd_obj *pcmd;
1151 struct setkey_parm *psetkeyparm;
1152 u8 keylen;
1153 int ret;
1154
1155 pcmd = kmalloc(sizeof(*pcmd), GFP_ATOMIC);
1156 if (!pcmd)
1157 return -ENOMEM;
1158 psetkeyparm = kzalloc(sizeof(*psetkeyparm), GFP_ATOMIC);
1159 if (!psetkeyparm) {
1160 ret = -ENOMEM;
1161 goto err_free_cmd;
1162 }
1163 if (psecuritypriv->AuthAlgrthm == 2) { /* 802.1X */
1164 psetkeyparm->algorithm =
1165 (u8)psecuritypriv->XGrpPrivacy;
1166 } else { /* WEP */
1167 psetkeyparm->algorithm =
1168 (u8)psecuritypriv->PrivacyAlgrthm;
1169 }
1170 psetkeyparm->keyid = (u8)keyid;
1171
1172 switch (psetkeyparm->algorithm) {
1173 case _WEP40_:
1174 keylen = 5;
1175 memcpy(psetkeyparm->key,
1176 psecuritypriv->DefKey[keyid].skey, keylen);
1177 break;
1178 case _WEP104_:
1179 keylen = 13;
1180 memcpy(psetkeyparm->key,
1181 psecuritypriv->DefKey[keyid].skey, keylen);
1182 break;
1183 case _TKIP_:
1184 if (keyid < 1 || keyid > 2) {
1185 ret = -EINVAL;
1186 goto err_free_parm;
1187 }
1188 keylen = 16;
1189 memcpy(psetkeyparm->key,
1190 &psecuritypriv->XGrpKey[keyid - 1], keylen);
1191 psetkeyparm->grpkey = 1;
1192 break;
1193 case _AES_:
1194 if (keyid < 1 || keyid > 2) {
1195 ret = -EINVAL;
1196 goto err_free_parm;
1197 }
1198 keylen = 16;
1199 memcpy(psetkeyparm->key,
1200 &psecuritypriv->XGrpKey[keyid - 1], keylen);
1201 psetkeyparm->grpkey = 1;
1202 break;
1203 default:
1204 ret = -EINVAL;
1205 goto err_free_parm;
1206 }
1207 pcmd->cmdcode = _SetKey_CMD_;
1208 pcmd->parmbuf = (u8 *)psetkeyparm;
1209 pcmd->cmdsz = (sizeof(struct setkey_parm));
1210 pcmd->rsp = NULL;
1211 pcmd->rspsz = 0;
1212 INIT_LIST_HEAD(&pcmd->list);
1213 r8712_enqueue_cmd(pcmdpriv, pcmd);
1214 return 0;
1215
1216 err_free_parm:
1217 kfree(psetkeyparm);
1218 err_free_cmd:
1219 kfree(pcmd);
1220 return ret;
1221 }
1222
1223 /* 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)1224 int r8712_restruct_wmm_ie(struct _adapter *adapter, u8 *in_ie, u8 *out_ie,
1225 uint in_len, uint initial_out_len)
1226 {
1227 unsigned int ielength = 0;
1228 unsigned int i, j;
1229
1230 i = 12; /* after the fixed IE */
1231 while (i < in_len) {
1232 ielength = initial_out_len;
1233 if (in_ie[i] == 0xDD && in_ie[i + 2] == 0x00 &&
1234 in_ie[i + 3] == 0x50 && in_ie[i + 4] == 0xF2 &&
1235 in_ie[i + 5] == 0x02 && i + 5 < in_len) {
1236 /*WMM element ID and OUI*/
1237 for (j = i; j < i + 9; j++) {
1238 out_ie[ielength] = in_ie[j];
1239 ielength++;
1240 }
1241 out_ie[initial_out_len + 1] = 0x07;
1242 out_ie[initial_out_len + 6] = 0x00;
1243 out_ie[initial_out_len + 8] = 0x00;
1244 break;
1245 }
1246 i += (in_ie[i + 1] + 2); /* to the next IE element */
1247 }
1248 return ielength;
1249 }
1250
1251 /*
1252 * Ported from 8185: IsInPreAuthKeyList().
1253 *
1254 * Search by BSSID,
1255 * Return Value:
1256 * -1 :if there is no pre-auth key in the table
1257 * >=0 :if there is pre-auth key, and return the entry id
1258 */
SecIsInPMKIDList(struct _adapter * Adapter,u8 * bssid)1259 static int SecIsInPMKIDList(struct _adapter *Adapter, u8 *bssid)
1260 {
1261 struct security_priv *p = &Adapter->securitypriv;
1262 int i;
1263
1264 for (i = 0; i < NUM_PMKID_CACHE; i++)
1265 if (p->PMKIDList[i].bUsed && !memcmp(p->PMKIDList[i].Bssid, bssid, ETH_ALEN))
1266 return i;
1267 return -1;
1268 }
1269
r8712_restruct_sec_ie(struct _adapter * adapter,u8 * in_ie,u8 * out_ie,uint in_len)1270 sint r8712_restruct_sec_ie(struct _adapter *adapter, u8 *in_ie,
1271 u8 *out_ie, uint in_len)
1272 {
1273 u8 authmode = 0, match;
1274 u8 sec_ie[IW_CUSTOM_MAX], uncst_oui[4], bkup_ie[255];
1275 u8 wpa_oui[4] = {0x0, 0x50, 0xf2, 0x01};
1276 uint ielength, cnt, remove_cnt;
1277 int iEntry;
1278 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1279 struct security_priv *psecuritypriv = &adapter->securitypriv;
1280 uint ndisauthmode = psecuritypriv->ndisauthtype;
1281 uint ndissecuritytype = psecuritypriv->ndisencryptstatus;
1282
1283 if ((ndisauthmode == Ndis802_11AuthModeWPA) ||
1284 (ndisauthmode == Ndis802_11AuthModeWPAPSK)) {
1285 authmode = _WPA_IE_ID_;
1286 uncst_oui[0] = 0x0;
1287 uncst_oui[1] = 0x50;
1288 uncst_oui[2] = 0xf2;
1289 }
1290 if ((ndisauthmode == Ndis802_11AuthModeWPA2) ||
1291 (ndisauthmode == Ndis802_11AuthModeWPA2PSK)) {
1292 authmode = _WPA2_IE_ID_;
1293 uncst_oui[0] = 0x0;
1294 uncst_oui[1] = 0x0f;
1295 uncst_oui[2] = 0xac;
1296 }
1297 switch (ndissecuritytype) {
1298 case Ndis802_11Encryption1Enabled:
1299 case Ndis802_11Encryption1KeyAbsent:
1300 uncst_oui[3] = 0x1;
1301 break;
1302 case Ndis802_11Encryption2Enabled:
1303 case Ndis802_11Encryption2KeyAbsent:
1304 uncst_oui[3] = 0x2;
1305 break;
1306 case Ndis802_11Encryption3Enabled:
1307 case Ndis802_11Encryption3KeyAbsent:
1308 uncst_oui[3] = 0x4;
1309 break;
1310 default:
1311 break;
1312 }
1313 /*Search required WPA or WPA2 IE and copy to sec_ie[] */
1314 cnt = 12;
1315 match = false;
1316 while (cnt < in_len) {
1317 if (in_ie[cnt] == authmode) {
1318 if ((authmode == _WPA_IE_ID_) &&
1319 (!memcmp(&in_ie[cnt + 2], &wpa_oui[0], 4))) {
1320 memcpy(&sec_ie[0], &in_ie[cnt],
1321 in_ie[cnt + 1] + 2);
1322 match = true;
1323 break;
1324 }
1325 if (authmode == _WPA2_IE_ID_) {
1326 memcpy(&sec_ie[0], &in_ie[cnt],
1327 in_ie[cnt + 1] + 2);
1328 match = true;
1329 break;
1330 }
1331 if (((authmode == _WPA_IE_ID_) &&
1332 (!memcmp(&in_ie[cnt + 2], &wpa_oui[0], 4))) ||
1333 (authmode == _WPA2_IE_ID_))
1334 memcpy(&bkup_ie[0], &in_ie[cnt],
1335 in_ie[cnt + 1] + 2);
1336 }
1337 cnt += in_ie[cnt + 1] + 2; /*get next*/
1338 }
1339 /*restruct WPA IE or WPA2 IE in sec_ie[] */
1340 if (match) {
1341 if (sec_ie[0] == _WPA_IE_ID_) {
1342 /* parsing SSN IE to select required encryption
1343 * algorithm, and set the bc/mc encryption algorithm
1344 */
1345 while (true) {
1346 /*check wpa_oui tag*/
1347 if (memcmp(&sec_ie[2], &wpa_oui[0], 4)) {
1348 match = false;
1349 break;
1350 }
1351 if ((sec_ie[6] != 0x01) || (sec_ie[7] != 0x0)) {
1352 /*IE Ver error*/
1353 match = false;
1354 break;
1355 }
1356 if (!memcmp(&sec_ie[8], &wpa_oui[0], 3)) {
1357 /* get bc/mc encryption type (group
1358 * key type)
1359 */
1360 switch (sec_ie[11]) {
1361 case 0x0: /*none*/
1362 psecuritypriv->XGrpPrivacy =
1363 _NO_PRIVACY_;
1364 break;
1365 case 0x1: /*WEP_40*/
1366 psecuritypriv->XGrpPrivacy =
1367 _WEP40_;
1368 break;
1369 case 0x2: /*TKIP*/
1370 psecuritypriv->XGrpPrivacy =
1371 _TKIP_;
1372 break;
1373 case 0x3: /*AESCCMP*/
1374 case 0x4:
1375 psecuritypriv->XGrpPrivacy =
1376 _AES_;
1377 break;
1378 case 0x5: /*WEP_104*/
1379 psecuritypriv->XGrpPrivacy =
1380 _WEP104_;
1381 break;
1382 }
1383 } else {
1384 match = false;
1385 break;
1386 }
1387 if (sec_ie[12] == 0x01) {
1388 /*check the unicast encryption type*/
1389 if (memcmp(&sec_ie[14],
1390 &uncst_oui[0], 4)) {
1391 match = false;
1392 break;
1393
1394 } /*else the uncst_oui is match*/
1395 } else { /*mixed mode, unicast_enc_type > 1*/
1396 /*select the uncst_oui and remove
1397 * the other uncst_oui
1398 */
1399 cnt = sec_ie[12];
1400 remove_cnt = (cnt - 1) * 4;
1401 sec_ie[12] = 0x01;
1402 memcpy(&sec_ie[14], &uncst_oui[0], 4);
1403 /*remove the other unicast suit*/
1404 memcpy(&sec_ie[18],
1405 &sec_ie[18 + remove_cnt],
1406 sec_ie[1] - 18 + 2 -
1407 remove_cnt);
1408 sec_ie[1] = sec_ie[1] - remove_cnt;
1409 }
1410 break;
1411 }
1412 }
1413 if (authmode == _WPA2_IE_ID_) {
1414 /* parsing RSN IE to select required encryption
1415 * algorithm, and set the bc/mc encryption algorithm
1416 */
1417 while (true) {
1418 if ((sec_ie[2] != 0x01) || (sec_ie[3] != 0x0)) {
1419 /*IE Ver error*/
1420 match = false;
1421 break;
1422 }
1423 if (!memcmp(&sec_ie[4], &uncst_oui[0], 3)) {
1424 /*get bc/mc encryption type*/
1425 switch (sec_ie[7]) {
1426 case 0x1: /*WEP_40*/
1427 psecuritypriv->XGrpPrivacy =
1428 _WEP40_;
1429 break;
1430 case 0x2: /*TKIP*/
1431 psecuritypriv->XGrpPrivacy =
1432 _TKIP_;
1433 break;
1434 case 0x4: /*AESWRAP*/
1435 psecuritypriv->XGrpPrivacy =
1436 _AES_;
1437 break;
1438 case 0x5: /*WEP_104*/
1439 psecuritypriv->XGrpPrivacy =
1440 _WEP104_;
1441 break;
1442 default: /*one*/
1443 psecuritypriv->XGrpPrivacy =
1444 _NO_PRIVACY_;
1445 break;
1446 }
1447 } else {
1448 match = false;
1449 break;
1450 }
1451 if (sec_ie[8] == 0x01) {
1452 /*check the unicast encryption type*/
1453 if (memcmp(&sec_ie[10],
1454 &uncst_oui[0], 4)) {
1455 match = false;
1456 break;
1457 } /*else the uncst_oui is match*/
1458 } else { /*mixed mode, unicast_enc_type > 1*/
1459 /*select the uncst_oui and remove the
1460 * other uncst_oui
1461 */
1462 cnt = sec_ie[8];
1463 remove_cnt = (cnt - 1) * 4;
1464 sec_ie[8] = 0x01;
1465 memcpy(&sec_ie[10], &uncst_oui[0], 4);
1466 /*remove the other unicast suit*/
1467 memcpy(&sec_ie[14],
1468 &sec_ie[14 + remove_cnt],
1469 (sec_ie[1] - 14 + 2 -
1470 remove_cnt));
1471 sec_ie[1] = sec_ie[1] - remove_cnt;
1472 }
1473 break;
1474 }
1475 }
1476 }
1477 if ((authmode == _WPA_IE_ID_) || (authmode == _WPA2_IE_ID_)) {
1478 /*copy fixed ie*/
1479 memcpy(out_ie, in_ie, 12);
1480 ielength = 12;
1481 /*copy RSN or SSN*/
1482 if (match) {
1483 memcpy(&out_ie[ielength], &sec_ie[0], sec_ie[1] + 2);
1484 ielength += sec_ie[1] + 2;
1485 if (authmode == _WPA2_IE_ID_) {
1486 /*the Pre-Authentication bit should be zero*/
1487 out_ie[ielength - 1] = 0;
1488 out_ie[ielength - 2] = 0;
1489 }
1490 r8712_report_sec_ie(adapter, authmode, sec_ie);
1491 }
1492 } else {
1493 /*copy fixed ie only*/
1494 memcpy(out_ie, in_ie, 12);
1495 ielength = 12;
1496 if (psecuritypriv->wps_phase) {
1497 memcpy(out_ie + ielength, psecuritypriv->wps_ie,
1498 psecuritypriv->wps_ie_len);
1499 ielength += psecuritypriv->wps_ie_len;
1500 }
1501 }
1502 iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
1503 if (iEntry < 0)
1504 return ielength;
1505 if (authmode == _WPA2_IE_ID_) {
1506 out_ie[ielength] = 1;
1507 ielength++;
1508 out_ie[ielength] = 0; /*PMKID count = 0x0100*/
1509 ielength++;
1510 memcpy(&out_ie[ielength],
1511 &psecuritypriv->PMKIDList[iEntry].PMKID, 16);
1512 ielength += 16;
1513 out_ie[13] += 18;/*PMKID length = 2+16*/
1514 }
1515 return ielength;
1516 }
1517
r8712_init_registrypriv_dev_network(struct _adapter * adapter)1518 void r8712_init_registrypriv_dev_network(struct _adapter *adapter)
1519 {
1520 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1521 struct eeprom_priv *peepriv = &adapter->eeprompriv;
1522 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1523 u8 *myhwaddr = myid(peepriv);
1524
1525 memcpy(pdev_network->MacAddress, myhwaddr, ETH_ALEN);
1526 memcpy(&pdev_network->Ssid, &pregistrypriv->ssid,
1527 sizeof(struct ndis_802_11_ssid));
1528 pdev_network->Configuration.Length =
1529 sizeof(struct NDIS_802_11_CONFIGURATION);
1530 pdev_network->Configuration.BeaconPeriod = 100;
1531 pdev_network->Configuration.FHConfig.Length = 0;
1532 pdev_network->Configuration.FHConfig.HopPattern = 0;
1533 pdev_network->Configuration.FHConfig.HopSet = 0;
1534 pdev_network->Configuration.FHConfig.DwellTime = 0;
1535 }
1536
r8712_update_registrypriv_dev_network(struct _adapter * adapter)1537 void r8712_update_registrypriv_dev_network(struct _adapter *adapter)
1538 {
1539 int sz = 0;
1540 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1541 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1542 struct security_priv *psecuritypriv = &adapter->securitypriv;
1543 struct wlan_network *cur_network = &adapter->mlmepriv.cur_network;
1544
1545 pdev_network->Privacy = cpu_to_le32(psecuritypriv->PrivacyAlgrthm
1546 > 0 ? 1 : 0); /* adhoc no 802.1x */
1547 pdev_network->Rssi = 0;
1548 switch (pregistrypriv->wireless_mode) {
1549 case WIRELESS_11B:
1550 pdev_network->NetworkTypeInUse = Ndis802_11DS;
1551 break;
1552 case WIRELESS_11G:
1553 case WIRELESS_11BG:
1554 pdev_network->NetworkTypeInUse = Ndis802_11OFDM24;
1555 break;
1556 case WIRELESS_11A:
1557 pdev_network->NetworkTypeInUse = Ndis802_11OFDM5;
1558 break;
1559 default:
1560 /* TODO */
1561 break;
1562 }
1563 pdev_network->Configuration.DSConfig = pregistrypriv->channel;
1564 if (cur_network->network.InfrastructureMode == Ndis802_11IBSS)
1565 pdev_network->Configuration.ATIMWindow = 3;
1566 pdev_network->InfrastructureMode = cur_network->network.InfrastructureMode;
1567 /* 1. Supported rates
1568 * 2. IE
1569 */
1570 sz = r8712_generate_ie(pregistrypriv);
1571 pdev_network->IELength = sz;
1572 pdev_network->Length = r8712_get_wlan_bssid_ex_sz(pdev_network);
1573 }
1574
1575 /*the function is at passive_level*/
r8712_joinbss_reset(struct _adapter * padapter)1576 void r8712_joinbss_reset(struct _adapter *padapter)
1577 {
1578 int i;
1579 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1580 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1581
1582 /* todo: if you want to do something io/reg/hw setting before join_bss,
1583 * please add code here
1584 */
1585 phtpriv->ampdu_enable = false;/*reset to disabled*/
1586 for (i = 0; i < 16; i++)
1587 phtpriv->baddbareq_issued[i] = false;/*reset it*/
1588 if (phtpriv->ht_option) {
1589 /* validate usb rx aggregation */
1590 r8712_write8(padapter, 0x102500D9, 48);/*TH = 48 pages, 6k*/
1591 } else {
1592 /* invalidate usb rx aggregation */
1593 /* TH=1 => means that invalidate usb rx aggregation */
1594 r8712_write8(padapter, 0x102500D9, 1);
1595 }
1596 }
1597
1598 /*the function is >= passive_level*/
r8712_restructure_ht_ie(struct _adapter * padapter,u8 * in_ie,u8 * out_ie,uint in_len,uint * pout_len)1599 unsigned int r8712_restructure_ht_ie(struct _adapter *padapter, u8 *in_ie,
1600 u8 *out_ie, uint in_len, uint *pout_len)
1601 {
1602 u32 ielen, out_len;
1603 unsigned char *p;
1604 struct ieee80211_ht_cap ht_capie;
1605 unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
1606 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1607 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
1608 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1609
1610 phtpriv->ht_option = 0;
1611 p = r8712_get_ie(in_ie + 12, WLAN_EID_HT_CAPABILITY, &ielen, in_len - 12);
1612 if (p && (ielen > 0)) {
1613 if (pqospriv->qos_option == 0) {
1614 out_len = *pout_len;
1615 r8712_set_ie(out_ie + out_len, WLAN_EID_VENDOR_SPECIFIC,
1616 _WMM_IE_Length_, WMM_IE, pout_len);
1617 pqospriv->qos_option = 1;
1618 }
1619 out_len = *pout_len;
1620 memset(&ht_capie, 0, sizeof(struct ieee80211_ht_cap));
1621 ht_capie.cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
1622 IEEE80211_HT_CAP_SGI_20 |
1623 IEEE80211_HT_CAP_SGI_40 |
1624 IEEE80211_HT_CAP_TX_STBC |
1625 IEEE80211_HT_CAP_MAX_AMSDU |
1626 IEEE80211_HT_CAP_DSSSCCK40);
1627 ht_capie.ampdu_params_info = (IEEE80211_HT_AMPDU_PARM_FACTOR &
1628 0x03) | (IEEE80211_HT_AMPDU_PARM_DENSITY & 0x00);
1629 r8712_set_ie(out_ie + out_len, WLAN_EID_HT_CAPABILITY,
1630 sizeof(struct ieee80211_ht_cap),
1631 (unsigned char *)&ht_capie, pout_len);
1632 phtpriv->ht_option = 1;
1633 }
1634 return phtpriv->ht_option;
1635 }
1636
1637 /* the function is > passive_level (in critical_section) */
update_ht_cap(struct _adapter * padapter,u8 * pie,uint ie_len)1638 static void update_ht_cap(struct _adapter *padapter, u8 *pie, uint ie_len)
1639 {
1640 u8 *p, max_ampdu_sz;
1641 int i;
1642 uint len;
1643 struct sta_info *bmc_sta, *psta;
1644 struct ieee80211_ht_cap *pht_capie;
1645 struct recv_reorder_ctrl *preorder_ctrl;
1646 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1647 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1648 struct registry_priv *pregistrypriv = &padapter->registrypriv;
1649 struct wlan_network *pcur_network = &(pmlmepriv->cur_network);
1650
1651 if (!phtpriv->ht_option)
1652 return;
1653 /* maybe needs check if ap supports rx ampdu. */
1654 if (!phtpriv->ampdu_enable &&
1655 (pregistrypriv->ampdu_enable == 1))
1656 phtpriv->ampdu_enable = true;
1657 /*check Max Rx A-MPDU Size*/
1658 len = 0;
1659 p = r8712_get_ie(pie + sizeof(struct NDIS_802_11_FIXED_IEs),
1660 WLAN_EID_HT_CAPABILITY,
1661 &len, ie_len -
1662 sizeof(struct NDIS_802_11_FIXED_IEs));
1663 if (p && len > 0) {
1664 pht_capie = (struct ieee80211_ht_cap *)(p + 2);
1665 max_ampdu_sz = (pht_capie->ampdu_params_info &
1666 IEEE80211_HT_AMPDU_PARM_FACTOR);
1667 /* max_ampdu_sz (kbytes); */
1668 max_ampdu_sz = 1 << (max_ampdu_sz + 3);
1669 phtpriv->rx_ampdu_maxlen = max_ampdu_sz;
1670 }
1671 /* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info
1672 * if A-MPDU Rx is enabled, resetting rx_ordering_ctrl
1673 * wstart_b(indicate_seq) to default value=0xffff
1674 * todo: check if AP can send A-MPDU packets
1675 */
1676 bmc_sta = r8712_get_bcmc_stainfo(padapter);
1677 if (bmc_sta) {
1678 for (i = 0; i < 16; i++) {
1679 preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
1680 preorder_ctrl->indicate_seq = 0xffff;
1681 preorder_ctrl->wend_b = 0xffff;
1682 }
1683 }
1684 psta = r8712_get_stainfo(&padapter->stapriv,
1685 pcur_network->network.MacAddress);
1686 if (psta) {
1687 for (i = 0; i < 16; i++) {
1688 preorder_ctrl = &psta->recvreorder_ctrl[i];
1689 preorder_ctrl->indicate_seq = 0xffff;
1690 preorder_ctrl->wend_b = 0xffff;
1691 }
1692 }
1693 len = 0;
1694 p = r8712_get_ie(pie + sizeof(struct NDIS_802_11_FIXED_IEs),
1695 WLAN_EID_HT_OPERATION, &len,
1696 ie_len - sizeof(struct NDIS_802_11_FIXED_IEs));
1697 }
1698
r8712_issue_addbareq_cmd(struct _adapter * padapter,int priority)1699 void r8712_issue_addbareq_cmd(struct _adapter *padapter, int priority)
1700 {
1701 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1702 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1703
1704 if ((phtpriv->ht_option == 1) && (phtpriv->ampdu_enable)) {
1705 if (!phtpriv->baddbareq_issued[priority]) {
1706 r8712_addbareq_cmd(padapter, (u8)priority);
1707 phtpriv->baddbareq_issued[priority] = true;
1708 }
1709 }
1710 }
1711