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 = adapter->
777 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, 0,
788 sizeof(union pn48));
789 memset((u8 *)&ptarget_sta->rxpn, 0,
790 sizeof(union pn48));
791 }
792 } else {
793 if (check_fwstate(pmlmepriv,
794 _FW_UNDER_LINKING))
795 pmlmepriv->fw_state ^=
796 _FW_UNDER_LINKING;
797 goto ignore_joinbss_callback;
798 }
799 }
800
801 /*s3. update cur_network & indicate connect*/
802 memcpy(&cur_network->network, &pnetwork->network,
803 pnetwork->network.Length);
804 cur_network->aid = pnetwork->join_res;
805 /*update fw_state will clr _FW_UNDER_LINKING*/
806 switch (pnetwork->network.InfrastructureMode) {
807 case Ndis802_11Infrastructure:
808 pmlmepriv->fw_state = WIFI_STATION_STATE;
809 break;
810 case Ndis802_11IBSS:
811 pmlmepriv->fw_state = WIFI_ADHOC_STATE;
812 break;
813 default:
814 pmlmepriv->fw_state = WIFI_NULL_STATE;
815 break;
816 }
817 r8712_update_protection(adapter,
818 (cur_network->network.IEs) +
819 sizeof(struct NDIS_802_11_FIXED_IEs),
820 (cur_network->network.IELength));
821 /*TODO: update HT_Capability*/
822 update_ht_cap(adapter, cur_network->network.IEs,
823 cur_network->network.IELength);
824 /*indicate connect*/
825 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE))
826 r8712_indicate_connect(adapter);
827 del_timer(&pmlmepriv->assoc_timer);
828 } else {
829 goto ignore_joinbss_callback;
830 }
831 } else {
832 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
833 mod_timer(&pmlmepriv->assoc_timer,
834 jiffies + msecs_to_jiffies(1));
835 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
836 }
837 }
838 ignore_joinbss_callback:
839 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
840 if (sizeof(struct list_head) == 4 * sizeof(u32))
841 kfree(pnetwork);
842 }
843
r8712_stassoc_event_callback(struct _adapter * adapter,u8 * pbuf)844 void r8712_stassoc_event_callback(struct _adapter *adapter, u8 *pbuf)
845 {
846 unsigned long irqL;
847 struct sta_info *psta;
848 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
849 struct stassoc_event *pstassoc = (struct stassoc_event *)pbuf;
850
851 /* to do: */
852 if (!r8712_access_ctrl(&adapter->acl_list, pstassoc->macaddr))
853 return;
854 psta = r8712_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
855 if (psta) {
856 /*the sta have been in sta_info_queue => do nothing
857 *(between drv has received this event before and
858 * fw have not yet to set key to CAM_ENTRY)
859 */
860 return;
861 }
862
863 psta = r8712_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
864 if (!psta)
865 return;
866 /* to do : init sta_info variable */
867 psta->qos_option = 0;
868 psta->mac_id = le32_to_cpu(pstassoc->cam_id);
869 /* psta->aid = (uint)pstassoc->cam_id; */
870
871 if (adapter->securitypriv.AuthAlgrthm == 2)
872 psta->XPrivacy = adapter->securitypriv.PrivacyAlgrthm;
873 psta->ieee8021x_blocked = false;
874 spin_lock_irqsave(&pmlmepriv->lock, irqL);
875 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
876 check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
877 if (adapter->stapriv.asoc_sta_count == 2) {
878 /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
879 r8712_indicate_connect(adapter);
880 }
881 }
882 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
883 }
884
r8712_stadel_event_callback(struct _adapter * adapter,u8 * pbuf)885 void r8712_stadel_event_callback(struct _adapter *adapter, u8 *pbuf)
886 {
887 unsigned long irqL, irqL2;
888 struct sta_info *psta;
889 struct wlan_network *pwlan = NULL;
890 struct wlan_bssid_ex *pdev_network = NULL;
891 u8 *pibss = NULL;
892 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
893 struct stadel_event *pstadel = (struct stadel_event *)pbuf;
894 struct sta_priv *pstapriv = &adapter->stapriv;
895 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
896
897 spin_lock_irqsave(&pmlmepriv->lock, irqL2);
898 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
899 r8712_ind_disconnect(adapter);
900 r8712_free_assoc_resources(adapter);
901 }
902 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE |
903 WIFI_ADHOC_STATE)) {
904 psta = r8712_get_stainfo(&adapter->stapriv, pstadel->macaddr);
905 spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
906 r8712_free_stainfo(adapter, psta);
907 spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
908 if (adapter->stapriv.asoc_sta_count == 1) {
909 /*a sta + bc/mc_stainfo (not Ibss_stainfo) */
910 pwlan = r8712_find_network(&pmlmepriv->scanned_queue,
911 tgt_network->network.MacAddress);
912 if (pwlan) {
913 pwlan->fixed = false;
914 free_network_nolock(pmlmepriv, pwlan);
915 }
916 /*re-create ibss*/
917 pdev_network = &(adapter->registrypriv.dev_network);
918 pibss = adapter->registrypriv.dev_network.MacAddress;
919 memcpy(pdev_network, &tgt_network->network,
920 r8712_get_wlan_bssid_ex_sz(&tgt_network->network));
921 memcpy(&pdev_network->Ssid,
922 &pmlmepriv->assoc_ssid,
923 sizeof(struct ndis_802_11_ssid));
924 r8712_update_registrypriv_dev_network(adapter);
925 r8712_generate_random_ibss(pibss);
926 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
927 _clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
928 set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
929 }
930 }
931 }
932 spin_unlock_irqrestore(&pmlmepriv->lock, irqL2);
933 }
934
r8712_cpwm_event_callback(struct _adapter * adapter,u8 * pbuf)935 void r8712_cpwm_event_callback(struct _adapter *adapter, u8 *pbuf)
936 {
937 struct reportpwrstate_parm *preportpwrstate =
938 (struct reportpwrstate_parm *)pbuf;
939
940 preportpwrstate->state |= (u8)(adapter->pwrctrlpriv.cpwm_tog + 0x80);
941 r8712_cpwm_int_hdl(adapter, preportpwrstate);
942 }
943
944 /* When the Netgear 3500 AP is with WPA2PSK-AES mode, it will send
945 * the ADDBA req frame with start seq control = 0 to wifi client after
946 * the WPA handshake and the seqence number of following data packet
947 * will be 0. In this case, the Rx reorder sequence is not longer than 0
948 * and the WiFi client will drop the data with seq number 0.
949 * So, the 8712 firmware has to inform driver with receiving the
950 * ADDBA-Req frame so that the driver can reset the
951 * sequence value of Rx reorder control.
952 */
r8712_got_addbareq_event_callback(struct _adapter * adapter,u8 * pbuf)953 void r8712_got_addbareq_event_callback(struct _adapter *adapter, u8 *pbuf)
954 {
955 struct ADDBA_Req_Report_parm *pAddbareq_pram =
956 (struct ADDBA_Req_Report_parm *)pbuf;
957 struct sta_info *psta;
958 struct sta_priv *pstapriv = &adapter->stapriv;
959 struct recv_reorder_ctrl *precvreorder_ctrl = NULL;
960
961 psta = r8712_get_stainfo(pstapriv, pAddbareq_pram->MacAddress);
962 if (psta) {
963 precvreorder_ctrl =
964 &psta->recvreorder_ctrl[pAddbareq_pram->tid];
965 /* set the indicate_seq to 0xffff so that the rx reorder
966 * can store any following data packet.
967 */
968 precvreorder_ctrl->indicate_seq = 0xffff;
969 }
970 }
971
r8712_wpspbc_event_callback(struct _adapter * adapter,u8 * pbuf)972 void r8712_wpspbc_event_callback(struct _adapter *adapter, u8 *pbuf)
973 {
974 if (!adapter->securitypriv.wps_hw_pbc_pressed)
975 adapter->securitypriv.wps_hw_pbc_pressed = true;
976 }
977
_r8712_sitesurvey_ctrl_handler(struct _adapter * adapter)978 void _r8712_sitesurvey_ctrl_handler(struct _adapter *adapter)
979 {
980 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
981 struct sitesurvey_ctrl *psitesurveyctrl = &pmlmepriv->sitesurveyctrl;
982 struct registry_priv *pregistrypriv = &adapter->registrypriv;
983 u64 current_tx_pkts;
984 uint current_rx_pkts;
985
986 current_tx_pkts = (adapter->xmitpriv.tx_pkts) -
987 (psitesurveyctrl->last_tx_pkts);
988 current_rx_pkts = (adapter->recvpriv.rx_pkts) -
989 (psitesurveyctrl->last_rx_pkts);
990 psitesurveyctrl->last_tx_pkts = adapter->xmitpriv.tx_pkts;
991 psitesurveyctrl->last_rx_pkts = adapter->recvpriv.rx_pkts;
992 if ((current_tx_pkts > pregistrypriv->busy_thresh) ||
993 (current_rx_pkts > pregistrypriv->busy_thresh))
994 psitesurveyctrl->traffic_busy = true;
995 else
996 psitesurveyctrl->traffic_busy = false;
997 }
998
_r8712_join_timeout_handler(struct _adapter * adapter)999 void _r8712_join_timeout_handler(struct _adapter *adapter)
1000 {
1001 unsigned long irqL;
1002 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1003
1004 if (adapter->driver_stopped || adapter->surprise_removed)
1005 return;
1006 spin_lock_irqsave(&pmlmepriv->lock, irqL);
1007 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1008 pmlmepriv->to_join = false;
1009 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1010 r8712_os_indicate_disconnect(adapter);
1011 _clr_fwstate_(pmlmepriv, _FW_LINKED);
1012 }
1013 if (adapter->pwrctrlpriv.pwr_mode != adapter->registrypriv.power_mgnt) {
1014 r8712_set_ps_mode(adapter, adapter->registrypriv.power_mgnt,
1015 adapter->registrypriv.smart_ps);
1016 }
1017 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
1018 }
1019
r8712_scan_timeout_handler(struct _adapter * adapter)1020 void r8712_scan_timeout_handler (struct _adapter *adapter)
1021 {
1022 unsigned long irqL;
1023 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1024
1025 spin_lock_irqsave(&pmlmepriv->lock, irqL);
1026 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
1027 pmlmepriv->to_join = false; /* scan fail, so clear to_join flag */
1028 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
1029 }
1030
_r8712_dhcp_timeout_handler(struct _adapter * adapter)1031 void _r8712_dhcp_timeout_handler (struct _adapter *adapter)
1032 {
1033 if (adapter->driver_stopped || adapter->surprise_removed)
1034 return;
1035 if (adapter->pwrctrlpriv.pwr_mode != adapter->registrypriv.power_mgnt)
1036 r8712_set_ps_mode(adapter, adapter->registrypriv.power_mgnt,
1037 adapter->registrypriv.smart_ps);
1038 }
1039
r8712_select_and_join_from_scan(struct mlme_priv * pmlmepriv)1040 int r8712_select_and_join_from_scan(struct mlme_priv *pmlmepriv)
1041 {
1042 struct list_head *phead;
1043 unsigned char *dst_ssid, *src_ssid;
1044 struct _adapter *adapter;
1045 struct __queue *queue = NULL;
1046 struct wlan_network *pnetwork = NULL;
1047 struct wlan_network *pnetwork_max_rssi = NULL;
1048
1049 adapter = (struct _adapter *)pmlmepriv->nic_hdl;
1050 queue = &pmlmepriv->scanned_queue;
1051 phead = &queue->queue;
1052 pmlmepriv->pscanned = phead->next;
1053 while (1) {
1054 if (end_of_queue_search(phead, pmlmepriv->pscanned)) {
1055 if (pmlmepriv->assoc_by_rssi && pnetwork_max_rssi) {
1056 pnetwork = pnetwork_max_rssi;
1057 goto ask_for_joinbss;
1058 }
1059 return -EINVAL;
1060 }
1061 pnetwork = container_of(pmlmepriv->pscanned,
1062 struct wlan_network, list);
1063 pmlmepriv->pscanned = pmlmepriv->pscanned->next;
1064 if (pmlmepriv->assoc_by_bssid) {
1065 dst_ssid = pnetwork->network.MacAddress;
1066 src_ssid = pmlmepriv->assoc_bssid;
1067 if (!memcmp(dst_ssid, src_ssid, ETH_ALEN)) {
1068 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1069 if (is_same_network(&pmlmepriv->cur_network.network,
1070 &pnetwork->network)) {
1071 _clr_fwstate_(pmlmepriv,
1072 _FW_UNDER_LINKING);
1073 /*r8712_indicate_connect again*/
1074 r8712_indicate_connect(adapter);
1075 return 2;
1076 }
1077 r8712_disassoc_cmd(adapter);
1078 r8712_ind_disconnect(adapter);
1079 r8712_free_assoc_resources(adapter);
1080 }
1081 goto ask_for_joinbss;
1082 }
1083 } else if (pmlmepriv->assoc_ssid.SsidLength == 0) {
1084 goto ask_for_joinbss;
1085 }
1086 dst_ssid = pnetwork->network.Ssid.Ssid;
1087 src_ssid = pmlmepriv->assoc_ssid.Ssid;
1088 if ((pnetwork->network.Ssid.SsidLength ==
1089 pmlmepriv->assoc_ssid.SsidLength) &&
1090 (!memcmp(dst_ssid, src_ssid,
1091 pmlmepriv->assoc_ssid.SsidLength))) {
1092 if (pmlmepriv->assoc_by_rssi) {
1093 /* if the ssid is the same, select the bss
1094 * which has the max rssi
1095 */
1096 if (pnetwork_max_rssi) {
1097 if (pnetwork->network.Rssi >
1098 pnetwork_max_rssi->network.Rssi)
1099 pnetwork_max_rssi = pnetwork;
1100 } else {
1101 pnetwork_max_rssi = pnetwork;
1102 }
1103 } else if (is_desired_network(adapter, pnetwork)) {
1104 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1105 r8712_disassoc_cmd(adapter);
1106 r8712_free_assoc_resources(adapter);
1107 }
1108 goto ask_for_joinbss;
1109 }
1110 }
1111 }
1112
1113 ask_for_joinbss:
1114 return r8712_joinbss_cmd(adapter, pnetwork);
1115 }
1116
r8712_set_auth(struct _adapter * adapter,struct security_priv * psecuritypriv)1117 int r8712_set_auth(struct _adapter *adapter,
1118 struct security_priv *psecuritypriv)
1119 {
1120 struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
1121 struct cmd_obj *pcmd;
1122 struct setauth_parm *psetauthparm;
1123
1124 pcmd = kmalloc(sizeof(*pcmd), GFP_ATOMIC);
1125 if (!pcmd)
1126 return -ENOMEM;
1127
1128 psetauthparm = kzalloc(sizeof(*psetauthparm), GFP_ATOMIC);
1129 if (!psetauthparm) {
1130 kfree(pcmd);
1131 return -ENOMEM;
1132 }
1133 psetauthparm->mode = (u8)psecuritypriv->AuthAlgrthm;
1134 pcmd->cmdcode = _SetAuth_CMD_;
1135 pcmd->parmbuf = (unsigned char *)psetauthparm;
1136 pcmd->cmdsz = sizeof(struct setauth_parm);
1137 pcmd->rsp = NULL;
1138 pcmd->rspsz = 0;
1139 INIT_LIST_HEAD(&pcmd->list);
1140 r8712_enqueue_cmd(pcmdpriv, pcmd);
1141 return 0;
1142 }
1143
r8712_set_key(struct _adapter * adapter,struct security_priv * psecuritypriv,sint keyid)1144 int r8712_set_key(struct _adapter *adapter,
1145 struct security_priv *psecuritypriv,
1146 sint keyid)
1147 {
1148 struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
1149 struct cmd_obj *pcmd;
1150 struct setkey_parm *psetkeyparm;
1151 u8 keylen;
1152 int ret;
1153
1154 pcmd = kmalloc(sizeof(*pcmd), GFP_ATOMIC);
1155 if (!pcmd)
1156 return -ENOMEM;
1157 psetkeyparm = kzalloc(sizeof(*psetkeyparm), GFP_ATOMIC);
1158 if (!psetkeyparm) {
1159 ret = -ENOMEM;
1160 goto err_free_cmd;
1161 }
1162 if (psecuritypriv->AuthAlgrthm == 2) { /* 802.1X */
1163 psetkeyparm->algorithm =
1164 (u8)psecuritypriv->XGrpPrivacy;
1165 } else { /* WEP */
1166 psetkeyparm->algorithm =
1167 (u8)psecuritypriv->PrivacyAlgrthm;
1168 }
1169 psetkeyparm->keyid = (u8)keyid;
1170
1171 switch (psetkeyparm->algorithm) {
1172 case _WEP40_:
1173 keylen = 5;
1174 memcpy(psetkeyparm->key,
1175 psecuritypriv->DefKey[keyid].skey, keylen);
1176 break;
1177 case _WEP104_:
1178 keylen = 13;
1179 memcpy(psetkeyparm->key,
1180 psecuritypriv->DefKey[keyid].skey, keylen);
1181 break;
1182 case _TKIP_:
1183 if (keyid < 1 || keyid > 2) {
1184 ret = -EINVAL;
1185 goto err_free_parm;
1186 }
1187 keylen = 16;
1188 memcpy(psetkeyparm->key,
1189 &psecuritypriv->XGrpKey[keyid - 1], keylen);
1190 psetkeyparm->grpkey = 1;
1191 break;
1192 case _AES_:
1193 if (keyid < 1 || keyid > 2) {
1194 ret = -EINVAL;
1195 goto err_free_parm;
1196 }
1197 keylen = 16;
1198 memcpy(psetkeyparm->key,
1199 &psecuritypriv->XGrpKey[keyid - 1], keylen);
1200 psetkeyparm->grpkey = 1;
1201 break;
1202 default:
1203 ret = -EINVAL;
1204 goto err_free_parm;
1205 }
1206 pcmd->cmdcode = _SetKey_CMD_;
1207 pcmd->parmbuf = (u8 *)psetkeyparm;
1208 pcmd->cmdsz = (sizeof(struct setkey_parm));
1209 pcmd->rsp = NULL;
1210 pcmd->rspsz = 0;
1211 INIT_LIST_HEAD(&pcmd->list);
1212 r8712_enqueue_cmd(pcmdpriv, pcmd);
1213 return 0;
1214
1215 err_free_parm:
1216 kfree(psetkeyparm);
1217 err_free_cmd:
1218 kfree(pcmd);
1219 return ret;
1220 }
1221
1222 /* 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)1223 int r8712_restruct_wmm_ie(struct _adapter *adapter, u8 *in_ie, u8 *out_ie,
1224 uint in_len, uint initial_out_len)
1225 {
1226 unsigned int ielength = 0;
1227 unsigned int i, j;
1228
1229 i = 12; /* after the fixed IE */
1230 while (i < in_len) {
1231 ielength = initial_out_len;
1232 if (in_ie[i] == 0xDD && in_ie[i + 2] == 0x00 &&
1233 in_ie[i + 3] == 0x50 && in_ie[i + 4] == 0xF2 &&
1234 in_ie[i + 5] == 0x02 && i + 5 < in_len) {
1235 /*WMM element ID and OUI*/
1236 for (j = i; j < i + 9; j++) {
1237 out_ie[ielength] = in_ie[j];
1238 ielength++;
1239 }
1240 out_ie[initial_out_len + 1] = 0x07;
1241 out_ie[initial_out_len + 6] = 0x00;
1242 out_ie[initial_out_len + 8] = 0x00;
1243 break;
1244 }
1245 i += (in_ie[i + 1] + 2); /* to the next IE element */
1246 }
1247 return ielength;
1248 }
1249
1250 /*
1251 * Ported from 8185: IsInPreAuthKeyList().
1252 *
1253 * Search by BSSID,
1254 * Return Value:
1255 * -1 :if there is no pre-auth key in the table
1256 * >=0 :if there is pre-auth key, and return the entry id
1257 */
SecIsInPMKIDList(struct _adapter * Adapter,u8 * bssid)1258 static int SecIsInPMKIDList(struct _adapter *Adapter, u8 *bssid)
1259 {
1260 struct security_priv *p = &Adapter->securitypriv;
1261 int i;
1262
1263 for (i = 0; i < NUM_PMKID_CACHE; i++)
1264 if (p->PMKIDList[i].bUsed && !memcmp(p->PMKIDList[i].Bssid, bssid, ETH_ALEN))
1265 return i;
1266 return -1;
1267 }
1268
r8712_restruct_sec_ie(struct _adapter * adapter,u8 * in_ie,u8 * out_ie,uint in_len)1269 sint r8712_restruct_sec_ie(struct _adapter *adapter, u8 *in_ie,
1270 u8 *out_ie, uint in_len)
1271 {
1272 u8 authmode = 0, match;
1273 u8 sec_ie[IW_CUSTOM_MAX], uncst_oui[4], bkup_ie[255];
1274 u8 wpa_oui[4] = {0x0, 0x50, 0xf2, 0x01};
1275 uint ielength, cnt, remove_cnt;
1276 int iEntry;
1277 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1278 struct security_priv *psecuritypriv = &adapter->securitypriv;
1279 uint ndisauthmode = psecuritypriv->ndisauthtype;
1280 uint ndissecuritytype = psecuritypriv->ndisencryptstatus;
1281
1282 if ((ndisauthmode == Ndis802_11AuthModeWPA) ||
1283 (ndisauthmode == Ndis802_11AuthModeWPAPSK)) {
1284 authmode = _WPA_IE_ID_;
1285 uncst_oui[0] = 0x0;
1286 uncst_oui[1] = 0x50;
1287 uncst_oui[2] = 0xf2;
1288 }
1289 if ((ndisauthmode == Ndis802_11AuthModeWPA2) ||
1290 (ndisauthmode == Ndis802_11AuthModeWPA2PSK)) {
1291 authmode = _WPA2_IE_ID_;
1292 uncst_oui[0] = 0x0;
1293 uncst_oui[1] = 0x0f;
1294 uncst_oui[2] = 0xac;
1295 }
1296 switch (ndissecuritytype) {
1297 case Ndis802_11Encryption1Enabled:
1298 case Ndis802_11Encryption1KeyAbsent:
1299 uncst_oui[3] = 0x1;
1300 break;
1301 case Ndis802_11Encryption2Enabled:
1302 case Ndis802_11Encryption2KeyAbsent:
1303 uncst_oui[3] = 0x2;
1304 break;
1305 case Ndis802_11Encryption3Enabled:
1306 case Ndis802_11Encryption3KeyAbsent:
1307 uncst_oui[3] = 0x4;
1308 break;
1309 default:
1310 break;
1311 }
1312 /*Search required WPA or WPA2 IE and copy to sec_ie[] */
1313 cnt = 12;
1314 match = false;
1315 while (cnt < in_len) {
1316 if (in_ie[cnt] == authmode) {
1317 if ((authmode == _WPA_IE_ID_) &&
1318 (!memcmp(&in_ie[cnt + 2], &wpa_oui[0], 4))) {
1319 memcpy(&sec_ie[0], &in_ie[cnt],
1320 in_ie[cnt + 1] + 2);
1321 match = true;
1322 break;
1323 }
1324 if (authmode == _WPA2_IE_ID_) {
1325 memcpy(&sec_ie[0], &in_ie[cnt],
1326 in_ie[cnt + 1] + 2);
1327 match = true;
1328 break;
1329 }
1330 if (((authmode == _WPA_IE_ID_) &&
1331 (!memcmp(&in_ie[cnt + 2], &wpa_oui[0], 4))) ||
1332 (authmode == _WPA2_IE_ID_))
1333 memcpy(&bkup_ie[0], &in_ie[cnt],
1334 in_ie[cnt + 1] + 2);
1335 }
1336 cnt += in_ie[cnt + 1] + 2; /*get next*/
1337 }
1338 /*restruct WPA IE or WPA2 IE in sec_ie[] */
1339 if (match) {
1340 if (sec_ie[0] == _WPA_IE_ID_) {
1341 /* parsing SSN IE to select required encryption
1342 * algorithm, and set the bc/mc encryption algorithm
1343 */
1344 while (true) {
1345 /*check wpa_oui tag*/
1346 if (memcmp(&sec_ie[2], &wpa_oui[0], 4)) {
1347 match = false;
1348 break;
1349 }
1350 if ((sec_ie[6] != 0x01) || (sec_ie[7] != 0x0)) {
1351 /*IE Ver error*/
1352 match = false;
1353 break;
1354 }
1355 if (!memcmp(&sec_ie[8], &wpa_oui[0], 3)) {
1356 /* get bc/mc encryption type (group
1357 * key type)
1358 */
1359 switch (sec_ie[11]) {
1360 case 0x0: /*none*/
1361 psecuritypriv->XGrpPrivacy =
1362 _NO_PRIVACY_;
1363 break;
1364 case 0x1: /*WEP_40*/
1365 psecuritypriv->XGrpPrivacy =
1366 _WEP40_;
1367 break;
1368 case 0x2: /*TKIP*/
1369 psecuritypriv->XGrpPrivacy =
1370 _TKIP_;
1371 break;
1372 case 0x3: /*AESCCMP*/
1373 case 0x4:
1374 psecuritypriv->XGrpPrivacy =
1375 _AES_;
1376 break;
1377 case 0x5: /*WEP_104*/
1378 psecuritypriv->XGrpPrivacy =
1379 _WEP104_;
1380 break;
1381 }
1382 } else {
1383 match = false;
1384 break;
1385 }
1386 if (sec_ie[12] == 0x01) {
1387 /*check the unicast encryption type*/
1388 if (memcmp(&sec_ie[14],
1389 &uncst_oui[0], 4)) {
1390 match = false;
1391 break;
1392
1393 } /*else the uncst_oui is match*/
1394 } else { /*mixed mode, unicast_enc_type > 1*/
1395 /*select the uncst_oui and remove
1396 * the other uncst_oui
1397 */
1398 cnt = sec_ie[12];
1399 remove_cnt = (cnt - 1) * 4;
1400 sec_ie[12] = 0x01;
1401 memcpy(&sec_ie[14], &uncst_oui[0], 4);
1402 /*remove the other unicast suit*/
1403 memcpy(&sec_ie[18],
1404 &sec_ie[18 + remove_cnt],
1405 sec_ie[1] - 18 + 2 -
1406 remove_cnt);
1407 sec_ie[1] = sec_ie[1] - remove_cnt;
1408 }
1409 break;
1410 }
1411 }
1412 if (authmode == _WPA2_IE_ID_) {
1413 /* parsing RSN IE to select required encryption
1414 * algorithm, and set the bc/mc encryption algorithm
1415 */
1416 while (true) {
1417 if ((sec_ie[2] != 0x01) || (sec_ie[3] != 0x0)) {
1418 /*IE Ver error*/
1419 match = false;
1420 break;
1421 }
1422 if (!memcmp(&sec_ie[4], &uncst_oui[0], 3)) {
1423 /*get bc/mc encryption type*/
1424 switch (sec_ie[7]) {
1425 case 0x1: /*WEP_40*/
1426 psecuritypriv->XGrpPrivacy =
1427 _WEP40_;
1428 break;
1429 case 0x2: /*TKIP*/
1430 psecuritypriv->XGrpPrivacy =
1431 _TKIP_;
1432 break;
1433 case 0x4: /*AESWRAP*/
1434 psecuritypriv->XGrpPrivacy =
1435 _AES_;
1436 break;
1437 case 0x5: /*WEP_104*/
1438 psecuritypriv->XGrpPrivacy =
1439 _WEP104_;
1440 break;
1441 default: /*one*/
1442 psecuritypriv->XGrpPrivacy =
1443 _NO_PRIVACY_;
1444 break;
1445 }
1446 } else {
1447 match = false;
1448 break;
1449 }
1450 if (sec_ie[8] == 0x01) {
1451 /*check the unicast encryption type*/
1452 if (memcmp(&sec_ie[10],
1453 &uncst_oui[0], 4)) {
1454 match = false;
1455 break;
1456 } /*else the uncst_oui is match*/
1457 } else { /*mixed mode, unicast_enc_type > 1*/
1458 /*select the uncst_oui and remove the
1459 * other uncst_oui
1460 */
1461 cnt = sec_ie[8];
1462 remove_cnt = (cnt - 1) * 4;
1463 sec_ie[8] = 0x01;
1464 memcpy(&sec_ie[10], &uncst_oui[0], 4);
1465 /*remove the other unicast suit*/
1466 memcpy(&sec_ie[14],
1467 &sec_ie[14 + remove_cnt],
1468 (sec_ie[1] - 14 + 2 -
1469 remove_cnt));
1470 sec_ie[1] = sec_ie[1] - remove_cnt;
1471 }
1472 break;
1473 }
1474 }
1475 }
1476 if ((authmode == _WPA_IE_ID_) || (authmode == _WPA2_IE_ID_)) {
1477 /*copy fixed ie*/
1478 memcpy(out_ie, in_ie, 12);
1479 ielength = 12;
1480 /*copy RSN or SSN*/
1481 if (match) {
1482 memcpy(&out_ie[ielength], &sec_ie[0], sec_ie[1] + 2);
1483 ielength += sec_ie[1] + 2;
1484 if (authmode == _WPA2_IE_ID_) {
1485 /*the Pre-Authentication bit should be zero*/
1486 out_ie[ielength - 1] = 0;
1487 out_ie[ielength - 2] = 0;
1488 }
1489 r8712_report_sec_ie(adapter, authmode, sec_ie);
1490 }
1491 } else {
1492 /*copy fixed ie only*/
1493 memcpy(out_ie, in_ie, 12);
1494 ielength = 12;
1495 if (psecuritypriv->wps_phase) {
1496 memcpy(out_ie + ielength, psecuritypriv->wps_ie,
1497 psecuritypriv->wps_ie_len);
1498 ielength += psecuritypriv->wps_ie_len;
1499 }
1500 }
1501 iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
1502 if (iEntry < 0)
1503 return ielength;
1504 if (authmode == _WPA2_IE_ID_) {
1505 out_ie[ielength] = 1;
1506 ielength++;
1507 out_ie[ielength] = 0; /*PMKID count = 0x0100*/
1508 ielength++;
1509 memcpy(&out_ie[ielength],
1510 &psecuritypriv->PMKIDList[iEntry].PMKID, 16);
1511 ielength += 16;
1512 out_ie[13] += 18;/*PMKID length = 2+16*/
1513 }
1514 return ielength;
1515 }
1516
r8712_init_registrypriv_dev_network(struct _adapter * adapter)1517 void r8712_init_registrypriv_dev_network(struct _adapter *adapter)
1518 {
1519 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1520 struct eeprom_priv *peepriv = &adapter->eeprompriv;
1521 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1522 u8 *myhwaddr = myid(peepriv);
1523
1524 memcpy(pdev_network->MacAddress, myhwaddr, ETH_ALEN);
1525 memcpy(&pdev_network->Ssid, &pregistrypriv->ssid,
1526 sizeof(struct ndis_802_11_ssid));
1527 pdev_network->Configuration.Length =
1528 sizeof(struct NDIS_802_11_CONFIGURATION);
1529 pdev_network->Configuration.BeaconPeriod = 100;
1530 pdev_network->Configuration.FHConfig.Length = 0;
1531 pdev_network->Configuration.FHConfig.HopPattern = 0;
1532 pdev_network->Configuration.FHConfig.HopSet = 0;
1533 pdev_network->Configuration.FHConfig.DwellTime = 0;
1534 }
1535
r8712_update_registrypriv_dev_network(struct _adapter * adapter)1536 void r8712_update_registrypriv_dev_network(struct _adapter *adapter)
1537 {
1538 int sz = 0;
1539 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1540 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1541 struct security_priv *psecuritypriv = &adapter->securitypriv;
1542 struct wlan_network *cur_network = &adapter->mlmepriv.cur_network;
1543
1544 pdev_network->Privacy = cpu_to_le32(psecuritypriv->PrivacyAlgrthm
1545 > 0 ? 1 : 0); /* adhoc no 802.1x */
1546 pdev_network->Rssi = 0;
1547 switch (pregistrypriv->wireless_mode) {
1548 case WIRELESS_11B:
1549 pdev_network->NetworkTypeInUse = Ndis802_11DS;
1550 break;
1551 case WIRELESS_11G:
1552 case WIRELESS_11BG:
1553 pdev_network->NetworkTypeInUse = Ndis802_11OFDM24;
1554 break;
1555 case WIRELESS_11A:
1556 pdev_network->NetworkTypeInUse = Ndis802_11OFDM5;
1557 break;
1558 default:
1559 /* TODO */
1560 break;
1561 }
1562 pdev_network->Configuration.DSConfig = pregistrypriv->channel;
1563 if (cur_network->network.InfrastructureMode == Ndis802_11IBSS)
1564 pdev_network->Configuration.ATIMWindow = 3;
1565 pdev_network->InfrastructureMode = cur_network->network.InfrastructureMode;
1566 /* 1. Supported rates
1567 * 2. IE
1568 */
1569 sz = r8712_generate_ie(pregistrypriv);
1570 pdev_network->IELength = sz;
1571 pdev_network->Length = r8712_get_wlan_bssid_ex_sz(pdev_network);
1572 }
1573
1574 /*the function is at passive_level*/
r8712_joinbss_reset(struct _adapter * padapter)1575 void r8712_joinbss_reset(struct _adapter *padapter)
1576 {
1577 int i;
1578 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1579 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1580
1581 /* todo: if you want to do something io/reg/hw setting before join_bss,
1582 * please add code here
1583 */
1584 phtpriv->ampdu_enable = false;/*reset to disabled*/
1585 for (i = 0; i < 16; i++)
1586 phtpriv->baddbareq_issued[i] = false;/*reset it*/
1587 if (phtpriv->ht_option) {
1588 /* validate usb rx aggregation */
1589 r8712_write8(padapter, 0x102500D9, 48);/*TH = 48 pages, 6k*/
1590 } else {
1591 /* invalidate usb rx aggregation */
1592 /* TH=1 => means that invalidate usb rx aggregation */
1593 r8712_write8(padapter, 0x102500D9, 1);
1594 }
1595 }
1596
1597 /*the function is >= passive_level*/
r8712_restructure_ht_ie(struct _adapter * padapter,u8 * in_ie,u8 * out_ie,uint in_len,uint * pout_len)1598 unsigned int r8712_restructure_ht_ie(struct _adapter *padapter, u8 *in_ie,
1599 u8 *out_ie, uint in_len, uint *pout_len)
1600 {
1601 u32 ielen, out_len;
1602 unsigned char *p;
1603 struct ieee80211_ht_cap ht_capie;
1604 unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
1605 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1606 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
1607 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1608
1609 phtpriv->ht_option = 0;
1610 p = r8712_get_ie(in_ie + 12, WLAN_EID_HT_CAPABILITY, &ielen, in_len - 12);
1611 if (p && (ielen > 0)) {
1612 if (pqospriv->qos_option == 0) {
1613 out_len = *pout_len;
1614 r8712_set_ie(out_ie + out_len, WLAN_EID_VENDOR_SPECIFIC,
1615 _WMM_IE_Length_, WMM_IE, pout_len);
1616 pqospriv->qos_option = 1;
1617 }
1618 out_len = *pout_len;
1619 memset(&ht_capie, 0, sizeof(struct ieee80211_ht_cap));
1620 ht_capie.cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
1621 IEEE80211_HT_CAP_SGI_20 |
1622 IEEE80211_HT_CAP_SGI_40 |
1623 IEEE80211_HT_CAP_TX_STBC |
1624 IEEE80211_HT_CAP_MAX_AMSDU |
1625 IEEE80211_HT_CAP_DSSSCCK40);
1626 ht_capie.ampdu_params_info = (IEEE80211_HT_AMPDU_PARM_FACTOR &
1627 0x03) | (IEEE80211_HT_AMPDU_PARM_DENSITY & 0x00);
1628 r8712_set_ie(out_ie + out_len, WLAN_EID_HT_CAPABILITY,
1629 sizeof(struct ieee80211_ht_cap),
1630 (unsigned char *)&ht_capie, pout_len);
1631 phtpriv->ht_option = 1;
1632 }
1633 return phtpriv->ht_option;
1634 }
1635
1636 /* the function is > passive_level (in critical_section) */
update_ht_cap(struct _adapter * padapter,u8 * pie,uint ie_len)1637 static void update_ht_cap(struct _adapter *padapter, u8 *pie, uint ie_len)
1638 {
1639 u8 *p, max_ampdu_sz;
1640 int i;
1641 uint len;
1642 struct sta_info *bmc_sta, *psta;
1643 struct ieee80211_ht_cap *pht_capie;
1644 struct recv_reorder_ctrl *preorder_ctrl;
1645 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1646 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1647 struct registry_priv *pregistrypriv = &padapter->registrypriv;
1648 struct wlan_network *pcur_network = &(pmlmepriv->cur_network);
1649
1650 if (!phtpriv->ht_option)
1651 return;
1652 /* maybe needs check if ap supports rx ampdu. */
1653 if (!phtpriv->ampdu_enable &&
1654 (pregistrypriv->ampdu_enable == 1))
1655 phtpriv->ampdu_enable = true;
1656 /*check Max Rx A-MPDU Size*/
1657 len = 0;
1658 p = r8712_get_ie(pie + sizeof(struct NDIS_802_11_FIXED_IEs),
1659 WLAN_EID_HT_CAPABILITY,
1660 &len, ie_len -
1661 sizeof(struct NDIS_802_11_FIXED_IEs));
1662 if (p && len > 0) {
1663 pht_capie = (struct ieee80211_ht_cap *)(p + 2);
1664 max_ampdu_sz = (pht_capie->ampdu_params_info &
1665 IEEE80211_HT_AMPDU_PARM_FACTOR);
1666 /* max_ampdu_sz (kbytes); */
1667 max_ampdu_sz = 1 << (max_ampdu_sz + 3);
1668 phtpriv->rx_ampdu_maxlen = max_ampdu_sz;
1669 }
1670 /* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info
1671 * if A-MPDU Rx is enabled, resetting rx_ordering_ctrl
1672 * wstart_b(indicate_seq) to default value=0xffff
1673 * todo: check if AP can send A-MPDU packets
1674 */
1675 bmc_sta = r8712_get_bcmc_stainfo(padapter);
1676 if (bmc_sta) {
1677 for (i = 0; i < 16; i++) {
1678 preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
1679 preorder_ctrl->indicate_seq = 0xffff;
1680 preorder_ctrl->wend_b = 0xffff;
1681 }
1682 }
1683 psta = r8712_get_stainfo(&padapter->stapriv,
1684 pcur_network->network.MacAddress);
1685 if (psta) {
1686 for (i = 0; i < 16; i++) {
1687 preorder_ctrl = &psta->recvreorder_ctrl[i];
1688 preorder_ctrl->indicate_seq = 0xffff;
1689 preorder_ctrl->wend_b = 0xffff;
1690 }
1691 }
1692 len = 0;
1693 p = r8712_get_ie(pie + sizeof(struct NDIS_802_11_FIXED_IEs),
1694 WLAN_EID_HT_OPERATION, &len,
1695 ie_len - sizeof(struct NDIS_802_11_FIXED_IEs));
1696 }
1697
r8712_issue_addbareq_cmd(struct _adapter * padapter,int priority)1698 void r8712_issue_addbareq_cmd(struct _adapter *padapter, int priority)
1699 {
1700 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1701 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1702
1703 if ((phtpriv->ht_option == 1) && (phtpriv->ampdu_enable)) {
1704 if (!phtpriv->baddbareq_issued[priority]) {
1705 r8712_addbareq_cmd(padapter, (u8)priority);
1706 phtpriv->baddbareq_issued[priority] = true;
1707 }
1708 }
1709 }
1710