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.
435 InfrastructureMode)
436 bselected = false;
437 }
438 return bselected;
439 }
440
441 /* TODO: Perry : For Power Management */
r8712_atimdone_event_callback(struct _adapter * adapter,u8 * pbuf)442 void r8712_atimdone_event_callback(struct _adapter *adapter, u8 *pbuf)
443 {
444 }
445
r8712_survey_event_callback(struct _adapter * adapter,u8 * pbuf)446 void r8712_survey_event_callback(struct _adapter *adapter, u8 *pbuf)
447 {
448 unsigned long flags;
449 u32 len;
450 struct wlan_bssid_ex *pnetwork;
451 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
452
453 pnetwork = (struct wlan_bssid_ex *)pbuf;
454 #ifdef __BIG_ENDIAN
455 /* endian_convert */
456 pnetwork->Length = le32_to_cpu(pnetwork->Length);
457 pnetwork->Ssid.SsidLength = le32_to_cpu(pnetwork->Ssid.SsidLength);
458 pnetwork->Privacy = le32_to_cpu(pnetwork->Privacy);
459 pnetwork->Rssi = le32_to_cpu(pnetwork->Rssi);
460 pnetwork->NetworkTypeInUse = le32_to_cpu(pnetwork->NetworkTypeInUse);
461 pnetwork->Configuration.ATIMWindow =
462 le32_to_cpu(pnetwork->Configuration.ATIMWindow);
463 pnetwork->Configuration.BeaconPeriod =
464 le32_to_cpu(pnetwork->Configuration.BeaconPeriod);
465 pnetwork->Configuration.DSConfig =
466 le32_to_cpu(pnetwork->Configuration.DSConfig);
467 pnetwork->Configuration.FHConfig.DwellTime =
468 le32_to_cpu(pnetwork->Configuration.FHConfig.DwellTime);
469 pnetwork->Configuration.FHConfig.HopPattern =
470 le32_to_cpu(pnetwork->Configuration.FHConfig.HopPattern);
471 pnetwork->Configuration.FHConfig.HopSet =
472 le32_to_cpu(pnetwork->Configuration.FHConfig.HopSet);
473 pnetwork->Configuration.FHConfig.Length =
474 le32_to_cpu(pnetwork->Configuration.FHConfig.Length);
475 pnetwork->Configuration.Length =
476 le32_to_cpu(pnetwork->Configuration.Length);
477 pnetwork->InfrastructureMode =
478 le32_to_cpu(pnetwork->InfrastructureMode);
479 pnetwork->IELength = le32_to_cpu(pnetwork->IELength);
480 #endif
481 len = r8712_get_wlan_bssid_ex_sz(pnetwork);
482 if (len > sizeof(struct wlan_bssid_ex))
483 return;
484 spin_lock_irqsave(&pmlmepriv->lock2, flags);
485 /* update IBSS_network 's timestamp */
486 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) {
487 if (!memcmp(&(pmlmepriv->cur_network.network.MacAddress),
488 pnetwork->MacAddress, ETH_ALEN)) {
489 struct wlan_network *ibss_wlan = NULL;
490
491 memcpy(pmlmepriv->cur_network.network.IEs,
492 pnetwork->IEs, 8);
493 ibss_wlan = r8712_find_network(
494 &pmlmepriv->scanned_queue,
495 pnetwork->MacAddress);
496 if (ibss_wlan) {
497 memcpy(ibss_wlan->network.IEs,
498 pnetwork->IEs, 8);
499 goto exit;
500 }
501 }
502 }
503 /* lock pmlmepriv->lock when you accessing network_q */
504 if (!check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
505 if (pnetwork->Ssid.Ssid[0] != 0) {
506 rtl8711_add_network(adapter, pnetwork);
507 } else {
508 pnetwork->Ssid.SsidLength = 8;
509 memcpy(pnetwork->Ssid.Ssid, "<hidden>", 8);
510 rtl8711_add_network(adapter, pnetwork);
511 }
512 }
513 exit:
514 spin_unlock_irqrestore(&pmlmepriv->lock2, flags);
515 }
516
r8712_surveydone_event_callback(struct _adapter * adapter,u8 * pbuf)517 void r8712_surveydone_event_callback(struct _adapter *adapter, u8 *pbuf)
518 {
519 unsigned long irqL;
520 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
521
522 spin_lock_irqsave(&pmlmepriv->lock, irqL);
523
524 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
525 del_timer(&pmlmepriv->scan_to_timer);
526
527 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
528 }
529
530 if (pmlmepriv->to_join) {
531 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
532 if (!check_fwstate(pmlmepriv, _FW_LINKED)) {
533 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
534
535 if (!r8712_select_and_join_from_scan(pmlmepriv)) {
536 mod_timer(&pmlmepriv->assoc_timer, jiffies +
537 msecs_to_jiffies(MAX_JOIN_TIMEOUT));
538 } else {
539 struct wlan_bssid_ex *pdev_network =
540 &(adapter->registrypriv.dev_network);
541 u8 *pibss =
542 adapter->registrypriv.
543 dev_network.MacAddress;
544 pmlmepriv->fw_state ^= _FW_UNDER_SURVEY;
545 memcpy(&pdev_network->Ssid,
546 &pmlmepriv->assoc_ssid,
547 sizeof(struct
548 ndis_802_11_ssid));
549 r8712_update_registrypriv_dev_network
550 (adapter);
551 r8712_generate_random_ibss(pibss);
552 pmlmepriv->fw_state =
553 WIFI_ADHOC_MASTER_STATE;
554 pmlmepriv->to_join = false;
555 }
556 }
557 } else {
558 pmlmepriv->to_join = false;
559 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
560 if (!r8712_select_and_join_from_scan(pmlmepriv))
561 mod_timer(&pmlmepriv->assoc_timer, jiffies +
562 msecs_to_jiffies(MAX_JOIN_TIMEOUT));
563 else
564 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
565 }
566 }
567 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
568 }
569
570 /*
571 *r8712_free_assoc_resources: the caller has to lock pmlmepriv->lock
572 */
r8712_free_assoc_resources(struct _adapter * adapter)573 void r8712_free_assoc_resources(struct _adapter *adapter)
574 {
575 unsigned long irqL;
576 struct wlan_network *pwlan = NULL;
577 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
578 struct sta_priv *pstapriv = &adapter->stapriv;
579 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
580
581 pwlan = r8712_find_network(&pmlmepriv->scanned_queue,
582 tgt_network->network.MacAddress);
583
584 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE)) {
585 struct sta_info *psta;
586
587 psta = r8712_get_stainfo(&adapter->stapriv,
588 tgt_network->network.MacAddress);
589
590 spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
591 r8712_free_stainfo(adapter, psta);
592 spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
593 }
594
595 if (check_fwstate(pmlmepriv,
596 WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE | WIFI_AP_STATE))
597 r8712_free_all_stainfo(adapter);
598 if (pwlan)
599 pwlan->fixed = false;
600
601 if (((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) &&
602 (adapter->stapriv.asoc_sta_count == 1)))
603 free_network_nolock(pmlmepriv, pwlan);
604 }
605
606 /*
607 * r8712_indicate_connect: the caller has to lock pmlmepriv->lock
608 */
r8712_indicate_connect(struct _adapter * padapter)609 void r8712_indicate_connect(struct _adapter *padapter)
610 {
611 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
612
613 pmlmepriv->to_join = false;
614 set_fwstate(pmlmepriv, _FW_LINKED);
615 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_LINK);
616 r8712_os_indicate_connect(padapter);
617 if (padapter->registrypriv.power_mgnt > PS_MODE_ACTIVE)
618 mod_timer(&pmlmepriv->dhcp_timer,
619 jiffies + msecs_to_jiffies(60000));
620 }
621
622 /*
623 * r8712_ind_disconnect: the caller has to lock pmlmepriv->lock
624 */
r8712_ind_disconnect(struct _adapter * padapter)625 void r8712_ind_disconnect(struct _adapter *padapter)
626 {
627 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
628
629 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
630 _clr_fwstate_(pmlmepriv, _FW_LINKED);
631 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_NO_LINK);
632 r8712_os_indicate_disconnect(padapter);
633 }
634 if (padapter->pwrctrlpriv.pwr_mode !=
635 padapter->registrypriv.power_mgnt) {
636 del_timer(&pmlmepriv->dhcp_timer);
637 r8712_set_ps_mode(padapter, padapter->registrypriv.power_mgnt,
638 padapter->registrypriv.smart_ps);
639 }
640 }
641
642 /*Notes:
643 *pnetwork : returns from r8712_joinbss_event_callback
644 *ptarget_wlan: found from scanned_queue
645 *if join_res > 0, for (fw_state==WIFI_STATION_STATE), we check if
646 * "ptarget_sta" & "ptarget_wlan" exist.
647 *if join_res > 0, for (fw_state==WIFI_ADHOC_STATE), we only check
648 * if "ptarget_wlan" exist.
649 *if join_res > 0, update "cur_network->network" from
650 * "pnetwork->network" if (ptarget_wlan !=NULL).
651 */
r8712_joinbss_event_callback(struct _adapter * adapter,u8 * pbuf)652 void r8712_joinbss_event_callback(struct _adapter *adapter, u8 *pbuf)
653 {
654 unsigned long irqL = 0, irqL2;
655 struct sta_info *ptarget_sta = NULL, *pcur_sta = NULL;
656 struct sta_priv *pstapriv = &adapter->stapriv;
657 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
658 struct wlan_network *cur_network = &pmlmepriv->cur_network;
659 struct wlan_network *pcur_wlan = NULL, *ptarget_wlan = NULL;
660 unsigned int the_same_macaddr = false;
661 struct wlan_network *pnetwork;
662
663 if (sizeof(struct list_head) == 4 * sizeof(u32)) {
664 pnetwork = kmalloc(sizeof(struct wlan_network), GFP_ATOMIC);
665 if (!pnetwork)
666 return;
667 memcpy((u8 *)pnetwork + 16, (u8 *)pbuf + 8,
668 sizeof(struct wlan_network) - 16);
669 } else {
670 pnetwork = (struct wlan_network *)pbuf;
671 }
672
673 #ifdef __BIG_ENDIAN
674 /* endian_convert */
675 pnetwork->join_res = le32_to_cpu(pnetwork->join_res);
676 pnetwork->network_type = le32_to_cpu(pnetwork->network_type);
677 pnetwork->network.Length = le32_to_cpu(pnetwork->network.Length);
678 pnetwork->network.Ssid.SsidLength =
679 le32_to_cpu(pnetwork->network.Ssid.SsidLength);
680 pnetwork->network.Privacy = le32_to_cpu(pnetwork->network.Privacy);
681 pnetwork->network.Rssi = le32_to_cpu(pnetwork->network.Rssi);
682 pnetwork->network.NetworkTypeInUse =
683 le32_to_cpu(pnetwork->network.NetworkTypeInUse);
684 pnetwork->network.Configuration.ATIMWindow =
685 le32_to_cpu(pnetwork->network.Configuration.ATIMWindow);
686 pnetwork->network.Configuration.BeaconPeriod =
687 le32_to_cpu(pnetwork->network.Configuration.BeaconPeriod);
688 pnetwork->network.Configuration.DSConfig =
689 le32_to_cpu(pnetwork->network.Configuration.DSConfig);
690 pnetwork->network.Configuration.FHConfig.DwellTime =
691 le32_to_cpu(pnetwork->network.Configuration.FHConfig.
692 DwellTime);
693 pnetwork->network.Configuration.FHConfig.HopPattern =
694 le32_to_cpu(pnetwork->network.Configuration.
695 FHConfig.HopPattern);
696 pnetwork->network.Configuration.FHConfig.HopSet =
697 le32_to_cpu(pnetwork->network.Configuration.FHConfig.HopSet);
698 pnetwork->network.Configuration.FHConfig.Length =
699 le32_to_cpu(pnetwork->network.Configuration.FHConfig.Length);
700 pnetwork->network.Configuration.Length =
701 le32_to_cpu(pnetwork->network.Configuration.Length);
702 pnetwork->network.InfrastructureMode =
703 le32_to_cpu(pnetwork->network.InfrastructureMode);
704 pnetwork->network.IELength = le32_to_cpu(pnetwork->network.IELength);
705 #endif
706
707 the_same_macaddr = !memcmp(pnetwork->network.MacAddress,
708 cur_network->network.MacAddress, ETH_ALEN);
709 pnetwork->network.Length =
710 r8712_get_wlan_bssid_ex_sz(&pnetwork->network);
711 spin_lock_irqsave(&pmlmepriv->lock, irqL);
712 if (pnetwork->network.Length > sizeof(struct wlan_bssid_ex))
713 goto ignore_joinbss_callback;
714 if (pnetwork->join_res > 0) {
715 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
716 /*s1. find ptarget_wlan*/
717 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
718 if (the_same_macaddr) {
719 ptarget_wlan =
720 r8712_find_network(&pmlmepriv->
721 scanned_queue,
722 cur_network->network.MacAddress);
723 } else {
724 pcur_wlan =
725 r8712_find_network(&pmlmepriv->
726 scanned_queue,
727 cur_network->network.MacAddress);
728 if (pcur_wlan)
729 pcur_wlan->fixed = false;
730
731 pcur_sta = r8712_get_stainfo(pstapriv,
732 cur_network->network.MacAddress);
733 spin_lock_irqsave(&pstapriv->
734 sta_hash_lock, irqL2);
735 r8712_free_stainfo(adapter, pcur_sta);
736 spin_unlock_irqrestore(&(pstapriv->
737 sta_hash_lock), irqL2);
738
739 ptarget_wlan =
740 r8712_find_network(&pmlmepriv->
741 scanned_queue,
742 pnetwork->network.
743 MacAddress);
744 if (ptarget_wlan)
745 ptarget_wlan->fixed = true;
746 }
747 } else {
748 ptarget_wlan = r8712_find_network(&pmlmepriv->
749 scanned_queue,
750 pnetwork->network.MacAddress);
751 if (ptarget_wlan)
752 ptarget_wlan->fixed = true;
753 }
754
755 if (!ptarget_wlan) {
756 if (check_fwstate(pmlmepriv,
757 _FW_UNDER_LINKING))
758 pmlmepriv->fw_state ^=
759 _FW_UNDER_LINKING;
760 goto ignore_joinbss_callback;
761 }
762
763 /*s2. find ptarget_sta & update ptarget_sta*/
764 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
765 if (the_same_macaddr) {
766 ptarget_sta =
767 r8712_get_stainfo(pstapriv,
768 pnetwork->network.MacAddress);
769 if (!ptarget_sta)
770 ptarget_sta =
771 r8712_alloc_stainfo(pstapriv,
772 pnetwork->network.MacAddress);
773 } else {
774 ptarget_sta =
775 r8712_alloc_stainfo(pstapriv,
776 pnetwork->network.MacAddress);
777 }
778 if (ptarget_sta) /*update ptarget_sta*/ {
779 ptarget_sta->aid = pnetwork->join_res;
780 ptarget_sta->qos_option = 1;
781 ptarget_sta->mac_id = 5;
782 if (adapter->securitypriv.
783 AuthAlgrthm == 2) {
784 adapter->securitypriv.
785 binstallGrpkey =
786 false;
787 adapter->securitypriv.
788 busetkipkey =
789 false;
790 adapter->securitypriv.
791 bgrpkey_handshake =
792 false;
793 ptarget_sta->ieee8021x_blocked
794 = true;
795 ptarget_sta->XPrivacy =
796 adapter->securitypriv.
797 PrivacyAlgrthm;
798 memset((u8 *)&ptarget_sta->
799 x_UncstKey,
800 0,
801 sizeof(union Keytype));
802 memset((u8 *)&ptarget_sta->
803 tkiprxmickey,
804 0,
805 sizeof(union Keytype));
806 memset((u8 *)&ptarget_sta->
807 tkiptxmickey,
808 0,
809 sizeof(union Keytype));
810 memset((u8 *)&ptarget_sta->
811 txpn, 0,
812 sizeof(union pn48));
813 memset((u8 *)&ptarget_sta->
814 rxpn, 0,
815 sizeof(union pn48));
816 }
817 } else {
818 if (check_fwstate(pmlmepriv,
819 _FW_UNDER_LINKING))
820 pmlmepriv->fw_state ^=
821 _FW_UNDER_LINKING;
822 goto ignore_joinbss_callback;
823 }
824 }
825
826 /*s3. update cur_network & indicate connect*/
827 memcpy(&cur_network->network, &pnetwork->network,
828 pnetwork->network.Length);
829 cur_network->aid = pnetwork->join_res;
830 /*update fw_state will clr _FW_UNDER_LINKING*/
831 switch (pnetwork->network.InfrastructureMode) {
832 case Ndis802_11Infrastructure:
833 pmlmepriv->fw_state = WIFI_STATION_STATE;
834 break;
835 case Ndis802_11IBSS:
836 pmlmepriv->fw_state = WIFI_ADHOC_STATE;
837 break;
838 default:
839 pmlmepriv->fw_state = WIFI_NULL_STATE;
840 break;
841 }
842 r8712_update_protection(adapter,
843 (cur_network->network.IEs) +
844 sizeof(struct NDIS_802_11_FIXED_IEs),
845 (cur_network->network.IELength));
846 /*TODO: update HT_Capability*/
847 update_ht_cap(adapter, cur_network->network.IEs,
848 cur_network->network.IELength);
849 /*indicate connect*/
850 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE))
851 r8712_indicate_connect(adapter);
852 del_timer(&pmlmepriv->assoc_timer);
853 } else {
854 goto ignore_joinbss_callback;
855 }
856 } else {
857 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
858 mod_timer(&pmlmepriv->assoc_timer,
859 jiffies + msecs_to_jiffies(1));
860 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
861 }
862 }
863 ignore_joinbss_callback:
864 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
865 if (sizeof(struct list_head) == 4 * sizeof(u32))
866 kfree(pnetwork);
867 }
868
r8712_stassoc_event_callback(struct _adapter * adapter,u8 * pbuf)869 void r8712_stassoc_event_callback(struct _adapter *adapter, u8 *pbuf)
870 {
871 unsigned long irqL;
872 struct sta_info *psta;
873 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
874 struct stassoc_event *pstassoc = (struct stassoc_event *)pbuf;
875
876 /* to do: */
877 if (!r8712_access_ctrl(&adapter->acl_list, pstassoc->macaddr))
878 return;
879 psta = r8712_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
880 if (psta) {
881 /*the sta have been in sta_info_queue => do nothing
882 *(between drv has received this event before and
883 * fw have not yet to set key to CAM_ENTRY)
884 */
885 return;
886 }
887
888 psta = r8712_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
889 if (!psta)
890 return;
891 /* to do : init sta_info variable */
892 psta->qos_option = 0;
893 psta->mac_id = le32_to_cpu(pstassoc->cam_id);
894 /* psta->aid = (uint)pstassoc->cam_id; */
895
896 if (adapter->securitypriv.AuthAlgrthm == 2)
897 psta->XPrivacy = adapter->securitypriv.PrivacyAlgrthm;
898 psta->ieee8021x_blocked = false;
899 spin_lock_irqsave(&pmlmepriv->lock, irqL);
900 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
901 check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
902 if (adapter->stapriv.asoc_sta_count == 2) {
903 /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
904 r8712_indicate_connect(adapter);
905 }
906 }
907 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
908 }
909
r8712_stadel_event_callback(struct _adapter * adapter,u8 * pbuf)910 void r8712_stadel_event_callback(struct _adapter *adapter, u8 *pbuf)
911 {
912 unsigned long irqL, irqL2;
913 struct sta_info *psta;
914 struct wlan_network *pwlan = NULL;
915 struct wlan_bssid_ex *pdev_network = NULL;
916 u8 *pibss = NULL;
917 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
918 struct stadel_event *pstadel = (struct stadel_event *)pbuf;
919 struct sta_priv *pstapriv = &adapter->stapriv;
920 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
921
922 spin_lock_irqsave(&pmlmepriv->lock, irqL2);
923 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
924 r8712_ind_disconnect(adapter);
925 r8712_free_assoc_resources(adapter);
926 }
927 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE |
928 WIFI_ADHOC_STATE)) {
929 psta = r8712_get_stainfo(&adapter->stapriv, pstadel->macaddr);
930 spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
931 r8712_free_stainfo(adapter, psta);
932 spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
933 if (adapter->stapriv.asoc_sta_count == 1) {
934 /*a sta + bc/mc_stainfo (not Ibss_stainfo) */
935 pwlan = r8712_find_network(&pmlmepriv->scanned_queue,
936 tgt_network->network.MacAddress);
937 if (pwlan) {
938 pwlan->fixed = false;
939 free_network_nolock(pmlmepriv, pwlan);
940 }
941 /*re-create ibss*/
942 pdev_network = &(adapter->registrypriv.dev_network);
943 pibss = adapter->registrypriv.dev_network.MacAddress;
944 memcpy(pdev_network, &tgt_network->network,
945 r8712_get_wlan_bssid_ex_sz(&tgt_network->
946 network));
947 memcpy(&pdev_network->Ssid,
948 &pmlmepriv->assoc_ssid,
949 sizeof(struct ndis_802_11_ssid));
950 r8712_update_registrypriv_dev_network(adapter);
951 r8712_generate_random_ibss(pibss);
952 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
953 _clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
954 set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
955 }
956 }
957 }
958 spin_unlock_irqrestore(&pmlmepriv->lock, irqL2);
959 }
960
r8712_cpwm_event_callback(struct _adapter * adapter,u8 * pbuf)961 void r8712_cpwm_event_callback(struct _adapter *adapter, u8 *pbuf)
962 {
963 struct reportpwrstate_parm *preportpwrstate =
964 (struct reportpwrstate_parm *)pbuf;
965
966 preportpwrstate->state |= (u8)(adapter->pwrctrlpriv.cpwm_tog + 0x80);
967 r8712_cpwm_int_hdl(adapter, preportpwrstate);
968 }
969
970 /* When the Netgear 3500 AP is with WPA2PSK-AES mode, it will send
971 * the ADDBA req frame with start seq control = 0 to wifi client after
972 * the WPA handshake and the seqence number of following data packet
973 * will be 0. In this case, the Rx reorder sequence is not longer than 0
974 * and the WiFi client will drop the data with seq number 0.
975 * So, the 8712 firmware has to inform driver with receiving the
976 * ADDBA-Req frame so that the driver can reset the
977 * sequence value of Rx reorder control.
978 */
r8712_got_addbareq_event_callback(struct _adapter * adapter,u8 * pbuf)979 void r8712_got_addbareq_event_callback(struct _adapter *adapter, u8 *pbuf)
980 {
981 struct ADDBA_Req_Report_parm *pAddbareq_pram =
982 (struct ADDBA_Req_Report_parm *)pbuf;
983 struct sta_info *psta;
984 struct sta_priv *pstapriv = &adapter->stapriv;
985 struct recv_reorder_ctrl *precvreorder_ctrl = NULL;
986
987 psta = r8712_get_stainfo(pstapriv, pAddbareq_pram->MacAddress);
988 if (psta) {
989 precvreorder_ctrl =
990 &psta->recvreorder_ctrl[pAddbareq_pram->tid];
991 /* set the indicate_seq to 0xffff so that the rx reorder
992 * can store any following data packet.
993 */
994 precvreorder_ctrl->indicate_seq = 0xffff;
995 }
996 }
997
r8712_wpspbc_event_callback(struct _adapter * adapter,u8 * pbuf)998 void r8712_wpspbc_event_callback(struct _adapter *adapter, u8 *pbuf)
999 {
1000 if (!adapter->securitypriv.wps_hw_pbc_pressed)
1001 adapter->securitypriv.wps_hw_pbc_pressed = true;
1002 }
1003
_r8712_sitesurvey_ctrl_handler(struct _adapter * adapter)1004 void _r8712_sitesurvey_ctrl_handler(struct _adapter *adapter)
1005 {
1006 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1007 struct sitesurvey_ctrl *psitesurveyctrl = &pmlmepriv->sitesurveyctrl;
1008 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1009 u64 current_tx_pkts;
1010 uint current_rx_pkts;
1011
1012 current_tx_pkts = (adapter->xmitpriv.tx_pkts) -
1013 (psitesurveyctrl->last_tx_pkts);
1014 current_rx_pkts = (adapter->recvpriv.rx_pkts) -
1015 (psitesurveyctrl->last_rx_pkts);
1016 psitesurveyctrl->last_tx_pkts = adapter->xmitpriv.tx_pkts;
1017 psitesurveyctrl->last_rx_pkts = adapter->recvpriv.rx_pkts;
1018 if ((current_tx_pkts > pregistrypriv->busy_thresh) ||
1019 (current_rx_pkts > pregistrypriv->busy_thresh))
1020 psitesurveyctrl->traffic_busy = true;
1021 else
1022 psitesurveyctrl->traffic_busy = false;
1023 }
1024
_r8712_join_timeout_handler(struct _adapter * adapter)1025 void _r8712_join_timeout_handler(struct _adapter *adapter)
1026 {
1027 unsigned long irqL;
1028 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1029
1030 if (adapter->driver_stopped || adapter->surprise_removed)
1031 return;
1032 spin_lock_irqsave(&pmlmepriv->lock, irqL);
1033 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1034 pmlmepriv->to_join = false;
1035 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1036 r8712_os_indicate_disconnect(adapter);
1037 _clr_fwstate_(pmlmepriv, _FW_LINKED);
1038 }
1039 if (adapter->pwrctrlpriv.pwr_mode != adapter->registrypriv.power_mgnt) {
1040 r8712_set_ps_mode(adapter, adapter->registrypriv.power_mgnt,
1041 adapter->registrypriv.smart_ps);
1042 }
1043 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
1044 }
1045
r8712_scan_timeout_handler(struct _adapter * adapter)1046 void r8712_scan_timeout_handler (struct _adapter *adapter)
1047 {
1048 unsigned long irqL;
1049 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1050
1051 spin_lock_irqsave(&pmlmepriv->lock, irqL);
1052 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
1053 pmlmepriv->to_join = false; /* scan fail, so clear to_join flag */
1054 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
1055 }
1056
_r8712_dhcp_timeout_handler(struct _adapter * adapter)1057 void _r8712_dhcp_timeout_handler (struct _adapter *adapter)
1058 {
1059 if (adapter->driver_stopped || adapter->surprise_removed)
1060 return;
1061 if (adapter->pwrctrlpriv.pwr_mode != adapter->registrypriv.power_mgnt)
1062 r8712_set_ps_mode(adapter, adapter->registrypriv.power_mgnt,
1063 adapter->registrypriv.smart_ps);
1064 }
1065
r8712_select_and_join_from_scan(struct mlme_priv * pmlmepriv)1066 int r8712_select_and_join_from_scan(struct mlme_priv *pmlmepriv)
1067 {
1068 struct list_head *phead;
1069 unsigned char *dst_ssid, *src_ssid;
1070 struct _adapter *adapter;
1071 struct __queue *queue = NULL;
1072 struct wlan_network *pnetwork = NULL;
1073 struct wlan_network *pnetwork_max_rssi = NULL;
1074
1075 adapter = (struct _adapter *)pmlmepriv->nic_hdl;
1076 queue = &pmlmepriv->scanned_queue;
1077 phead = &queue->queue;
1078 pmlmepriv->pscanned = phead->next;
1079 while (1) {
1080 if (end_of_queue_search(phead, pmlmepriv->pscanned)) {
1081 if (pmlmepriv->assoc_by_rssi && pnetwork_max_rssi) {
1082 pnetwork = pnetwork_max_rssi;
1083 goto ask_for_joinbss;
1084 }
1085 return -EINVAL;
1086 }
1087 pnetwork = container_of(pmlmepriv->pscanned,
1088 struct wlan_network, list);
1089 pmlmepriv->pscanned = pmlmepriv->pscanned->next;
1090 if (pmlmepriv->assoc_by_bssid) {
1091 dst_ssid = pnetwork->network.MacAddress;
1092 src_ssid = pmlmepriv->assoc_bssid;
1093 if (!memcmp(dst_ssid, src_ssid, ETH_ALEN)) {
1094 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1095 if (is_same_network(&pmlmepriv->
1096 cur_network.network,
1097 &pnetwork->network)) {
1098 _clr_fwstate_(pmlmepriv,
1099 _FW_UNDER_LINKING);
1100 /*r8712_indicate_connect again*/
1101 r8712_indicate_connect(adapter);
1102 return 2;
1103 }
1104 r8712_disassoc_cmd(adapter);
1105 r8712_ind_disconnect(adapter);
1106 r8712_free_assoc_resources(adapter);
1107 }
1108 goto ask_for_joinbss;
1109 }
1110 } else if (pmlmepriv->assoc_ssid.SsidLength == 0) {
1111 goto ask_for_joinbss;
1112 }
1113 dst_ssid = pnetwork->network.Ssid.Ssid;
1114 src_ssid = pmlmepriv->assoc_ssid.Ssid;
1115 if ((pnetwork->network.Ssid.SsidLength ==
1116 pmlmepriv->assoc_ssid.SsidLength) &&
1117 (!memcmp(dst_ssid, src_ssid,
1118 pmlmepriv->assoc_ssid.SsidLength))) {
1119 if (pmlmepriv->assoc_by_rssi) {
1120 /* if the ssid is the same, select the bss
1121 * which has the max rssi
1122 */
1123 if (pnetwork_max_rssi) {
1124 if (pnetwork->network.Rssi >
1125 pnetwork_max_rssi->network.Rssi)
1126 pnetwork_max_rssi = pnetwork;
1127 } else {
1128 pnetwork_max_rssi = pnetwork;
1129 }
1130 } else if (is_desired_network(adapter, pnetwork)) {
1131 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1132 r8712_disassoc_cmd(adapter);
1133 r8712_free_assoc_resources(adapter);
1134 }
1135 goto ask_for_joinbss;
1136 }
1137 }
1138 }
1139
1140 ask_for_joinbss:
1141 return r8712_joinbss_cmd(adapter, pnetwork);
1142 }
1143
r8712_set_auth(struct _adapter * adapter,struct security_priv * psecuritypriv)1144 int r8712_set_auth(struct _adapter *adapter,
1145 struct security_priv *psecuritypriv)
1146 {
1147 struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
1148 struct cmd_obj *pcmd;
1149 struct setauth_parm *psetauthparm;
1150
1151 pcmd = kmalloc(sizeof(*pcmd), GFP_ATOMIC);
1152 if (!pcmd)
1153 return -ENOMEM;
1154
1155 psetauthparm = kzalloc(sizeof(*psetauthparm), GFP_ATOMIC);
1156 if (!psetauthparm) {
1157 kfree(pcmd);
1158 return -ENOMEM;
1159 }
1160 psetauthparm->mode = (u8)psecuritypriv->AuthAlgrthm;
1161 pcmd->cmdcode = _SetAuth_CMD_;
1162 pcmd->parmbuf = (unsigned char *)psetauthparm;
1163 pcmd->cmdsz = sizeof(struct setauth_parm);
1164 pcmd->rsp = NULL;
1165 pcmd->rspsz = 0;
1166 INIT_LIST_HEAD(&pcmd->list);
1167 r8712_enqueue_cmd(pcmdpriv, pcmd);
1168 return 0;
1169 }
1170
r8712_set_key(struct _adapter * adapter,struct security_priv * psecuritypriv,sint keyid)1171 int r8712_set_key(struct _adapter *adapter,
1172 struct security_priv *psecuritypriv,
1173 sint keyid)
1174 {
1175 struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
1176 struct cmd_obj *pcmd;
1177 struct setkey_parm *psetkeyparm;
1178 u8 keylen;
1179 int ret;
1180
1181 pcmd = kmalloc(sizeof(*pcmd), GFP_ATOMIC);
1182 if (!pcmd)
1183 return -ENOMEM;
1184 psetkeyparm = kzalloc(sizeof(*psetkeyparm), GFP_ATOMIC);
1185 if (!psetkeyparm) {
1186 ret = -ENOMEM;
1187 goto err_free_cmd;
1188 }
1189 if (psecuritypriv->AuthAlgrthm == 2) { /* 802.1X */
1190 psetkeyparm->algorithm =
1191 (u8)psecuritypriv->XGrpPrivacy;
1192 } else { /* WEP */
1193 psetkeyparm->algorithm =
1194 (u8)psecuritypriv->PrivacyAlgrthm;
1195 }
1196 psetkeyparm->keyid = (u8)keyid;
1197
1198 switch (psetkeyparm->algorithm) {
1199 case _WEP40_:
1200 keylen = 5;
1201 memcpy(psetkeyparm->key,
1202 psecuritypriv->DefKey[keyid].skey, keylen);
1203 break;
1204 case _WEP104_:
1205 keylen = 13;
1206 memcpy(psetkeyparm->key,
1207 psecuritypriv->DefKey[keyid].skey, keylen);
1208 break;
1209 case _TKIP_:
1210 if (keyid < 1 || keyid > 2) {
1211 ret = -EINVAL;
1212 goto err_free_parm;
1213 }
1214 keylen = 16;
1215 memcpy(psetkeyparm->key,
1216 &psecuritypriv->XGrpKey[keyid - 1], keylen);
1217 psetkeyparm->grpkey = 1;
1218 break;
1219 case _AES_:
1220 if (keyid < 1 || keyid > 2) {
1221 ret = -EINVAL;
1222 goto err_free_parm;
1223 }
1224 keylen = 16;
1225 memcpy(psetkeyparm->key,
1226 &psecuritypriv->XGrpKey[keyid - 1], keylen);
1227 psetkeyparm->grpkey = 1;
1228 break;
1229 default:
1230 ret = -EINVAL;
1231 goto err_free_parm;
1232 }
1233 pcmd->cmdcode = _SetKey_CMD_;
1234 pcmd->parmbuf = (u8 *)psetkeyparm;
1235 pcmd->cmdsz = (sizeof(struct setkey_parm));
1236 pcmd->rsp = NULL;
1237 pcmd->rspsz = 0;
1238 INIT_LIST_HEAD(&pcmd->list);
1239 r8712_enqueue_cmd(pcmdpriv, pcmd);
1240 return 0;
1241
1242 err_free_parm:
1243 kfree(psetkeyparm);
1244 err_free_cmd:
1245 kfree(pcmd);
1246 return ret;
1247 }
1248
1249 /* 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)1250 int r8712_restruct_wmm_ie(struct _adapter *adapter, u8 *in_ie, u8 *out_ie,
1251 uint in_len, uint initial_out_len)
1252 {
1253 unsigned int ielength = 0;
1254 unsigned int i, j;
1255
1256 i = 12; /* after the fixed IE */
1257 while (i < in_len) {
1258 ielength = initial_out_len;
1259 if (in_ie[i] == 0xDD && in_ie[i + 2] == 0x00 &&
1260 in_ie[i + 3] == 0x50 && in_ie[i + 4] == 0xF2 &&
1261 in_ie[i + 5] == 0x02 && i + 5 < in_len) {
1262 /*WMM element ID and OUI*/
1263 for (j = i; j < i + 9; j++) {
1264 out_ie[ielength] = in_ie[j];
1265 ielength++;
1266 }
1267 out_ie[initial_out_len + 1] = 0x07;
1268 out_ie[initial_out_len + 6] = 0x00;
1269 out_ie[initial_out_len + 8] = 0x00;
1270 break;
1271 }
1272 i += (in_ie[i + 1] + 2); /* to the next IE element */
1273 }
1274 return ielength;
1275 }
1276
1277 /*
1278 * Ported from 8185: IsInPreAuthKeyList().
1279 *
1280 * Search by BSSID,
1281 * Return Value:
1282 * -1 :if there is no pre-auth key in the table
1283 * >=0 :if there is pre-auth key, and return the entry id
1284 */
SecIsInPMKIDList(struct _adapter * Adapter,u8 * bssid)1285 static int SecIsInPMKIDList(struct _adapter *Adapter, u8 *bssid)
1286 {
1287 struct security_priv *psecuritypriv = &Adapter->securitypriv;
1288 int i = 0;
1289
1290 do {
1291 if (psecuritypriv->PMKIDList[i].bUsed &&
1292 (!memcmp(psecuritypriv->PMKIDList[i].Bssid,
1293 bssid, ETH_ALEN)))
1294 break;
1295 i++;
1296
1297 } while (i < NUM_PMKID_CACHE);
1298
1299 if (i == NUM_PMKID_CACHE) {
1300 i = -1; /* Could not find. */
1301 } else {
1302 ; /* There is one Pre-Authentication Key for the
1303 * specific BSSID.
1304 */
1305 }
1306 return i;
1307 }
1308
r8712_restruct_sec_ie(struct _adapter * adapter,u8 * in_ie,u8 * out_ie,uint in_len)1309 sint r8712_restruct_sec_ie(struct _adapter *adapter, u8 *in_ie,
1310 u8 *out_ie, uint in_len)
1311 {
1312 u8 authmode = 0, match;
1313 u8 sec_ie[IW_CUSTOM_MAX], uncst_oui[4], bkup_ie[255];
1314 u8 wpa_oui[4] = {0x0, 0x50, 0xf2, 0x01};
1315 uint ielength, cnt, remove_cnt;
1316 int iEntry;
1317 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1318 struct security_priv *psecuritypriv = &adapter->securitypriv;
1319 uint ndisauthmode = psecuritypriv->ndisauthtype;
1320 uint ndissecuritytype = psecuritypriv->ndisencryptstatus;
1321
1322 if ((ndisauthmode == Ndis802_11AuthModeWPA) ||
1323 (ndisauthmode == Ndis802_11AuthModeWPAPSK)) {
1324 authmode = _WPA_IE_ID_;
1325 uncst_oui[0] = 0x0;
1326 uncst_oui[1] = 0x50;
1327 uncst_oui[2] = 0xf2;
1328 }
1329 if ((ndisauthmode == Ndis802_11AuthModeWPA2) ||
1330 (ndisauthmode == Ndis802_11AuthModeWPA2PSK)) {
1331 authmode = _WPA2_IE_ID_;
1332 uncst_oui[0] = 0x0;
1333 uncst_oui[1] = 0x0f;
1334 uncst_oui[2] = 0xac;
1335 }
1336 switch (ndissecuritytype) {
1337 case Ndis802_11Encryption1Enabled:
1338 case Ndis802_11Encryption1KeyAbsent:
1339 uncst_oui[3] = 0x1;
1340 break;
1341 case Ndis802_11Encryption2Enabled:
1342 case Ndis802_11Encryption2KeyAbsent:
1343 uncst_oui[3] = 0x2;
1344 break;
1345 case Ndis802_11Encryption3Enabled:
1346 case Ndis802_11Encryption3KeyAbsent:
1347 uncst_oui[3] = 0x4;
1348 break;
1349 default:
1350 break;
1351 }
1352 /*Search required WPA or WPA2 IE and copy to sec_ie[] */
1353 cnt = 12;
1354 match = false;
1355 while (cnt < in_len) {
1356 if (in_ie[cnt] == authmode) {
1357 if ((authmode == _WPA_IE_ID_) &&
1358 (!memcmp(&in_ie[cnt + 2], &wpa_oui[0], 4))) {
1359 memcpy(&sec_ie[0], &in_ie[cnt],
1360 in_ie[cnt + 1] + 2);
1361 match = true;
1362 break;
1363 }
1364 if (authmode == _WPA2_IE_ID_) {
1365 memcpy(&sec_ie[0], &in_ie[cnt],
1366 in_ie[cnt + 1] + 2);
1367 match = true;
1368 break;
1369 }
1370 if (((authmode == _WPA_IE_ID_) &&
1371 (!memcmp(&in_ie[cnt + 2], &wpa_oui[0], 4))) ||
1372 (authmode == _WPA2_IE_ID_))
1373 memcpy(&bkup_ie[0], &in_ie[cnt],
1374 in_ie[cnt + 1] + 2);
1375 }
1376 cnt += in_ie[cnt + 1] + 2; /*get next*/
1377 }
1378 /*restruct WPA IE or WPA2 IE in sec_ie[] */
1379 if (match) {
1380 if (sec_ie[0] == _WPA_IE_ID_) {
1381 /* parsing SSN IE to select required encryption
1382 * algorithm, and set the bc/mc encryption algorithm
1383 */
1384 while (true) {
1385 /*check wpa_oui tag*/
1386 if (memcmp(&sec_ie[2], &wpa_oui[0], 4)) {
1387 match = false;
1388 break;
1389 }
1390 if ((sec_ie[6] != 0x01) || (sec_ie[7] != 0x0)) {
1391 /*IE Ver error*/
1392 match = false;
1393 break;
1394 }
1395 if (!memcmp(&sec_ie[8], &wpa_oui[0], 3)) {
1396 /* get bc/mc encryption type (group
1397 * key type)
1398 */
1399 switch (sec_ie[11]) {
1400 case 0x0: /*none*/
1401 psecuritypriv->XGrpPrivacy =
1402 _NO_PRIVACY_;
1403 break;
1404 case 0x1: /*WEP_40*/
1405 psecuritypriv->XGrpPrivacy =
1406 _WEP40_;
1407 break;
1408 case 0x2: /*TKIP*/
1409 psecuritypriv->XGrpPrivacy =
1410 _TKIP_;
1411 break;
1412 case 0x3: /*AESCCMP*/
1413 case 0x4:
1414 psecuritypriv->XGrpPrivacy =
1415 _AES_;
1416 break;
1417 case 0x5: /*WEP_104*/
1418 psecuritypriv->XGrpPrivacy =
1419 _WEP104_;
1420 break;
1421 }
1422 } else {
1423 match = false;
1424 break;
1425 }
1426 if (sec_ie[12] == 0x01) {
1427 /*check the unicast encryption type*/
1428 if (memcmp(&sec_ie[14],
1429 &uncst_oui[0], 4)) {
1430 match = false;
1431 break;
1432
1433 } /*else the uncst_oui is match*/
1434 } else { /*mixed mode, unicast_enc_type > 1*/
1435 /*select the uncst_oui and remove
1436 * the other uncst_oui
1437 */
1438 cnt = sec_ie[12];
1439 remove_cnt = (cnt - 1) * 4;
1440 sec_ie[12] = 0x01;
1441 memcpy(&sec_ie[14], &uncst_oui[0], 4);
1442 /*remove the other unicast suit*/
1443 memcpy(&sec_ie[18],
1444 &sec_ie[18 + remove_cnt],
1445 sec_ie[1] - 18 + 2 -
1446 remove_cnt);
1447 sec_ie[1] = sec_ie[1] - remove_cnt;
1448 }
1449 break;
1450 }
1451 }
1452 if (authmode == _WPA2_IE_ID_) {
1453 /* parsing RSN IE to select required encryption
1454 * algorithm, and set the bc/mc encryption algorithm
1455 */
1456 while (true) {
1457 if ((sec_ie[2] != 0x01) || (sec_ie[3] != 0x0)) {
1458 /*IE Ver error*/
1459 match = false;
1460 break;
1461 }
1462 if (!memcmp(&sec_ie[4], &uncst_oui[0], 3)) {
1463 /*get bc/mc encryption type*/
1464 switch (sec_ie[7]) {
1465 case 0x1: /*WEP_40*/
1466 psecuritypriv->XGrpPrivacy =
1467 _WEP40_;
1468 break;
1469 case 0x2: /*TKIP*/
1470 psecuritypriv->XGrpPrivacy =
1471 _TKIP_;
1472 break;
1473 case 0x4: /*AESWRAP*/
1474 psecuritypriv->XGrpPrivacy =
1475 _AES_;
1476 break;
1477 case 0x5: /*WEP_104*/
1478 psecuritypriv->XGrpPrivacy =
1479 _WEP104_;
1480 break;
1481 default: /*one*/
1482 psecuritypriv->XGrpPrivacy =
1483 _NO_PRIVACY_;
1484 break;
1485 }
1486 } else {
1487 match = false;
1488 break;
1489 }
1490 if (sec_ie[8] == 0x01) {
1491 /*check the unicast encryption type*/
1492 if (memcmp(&sec_ie[10],
1493 &uncst_oui[0], 4)) {
1494 match = false;
1495 break;
1496 } /*else the uncst_oui is match*/
1497 } else { /*mixed mode, unicast_enc_type > 1*/
1498 /*select the uncst_oui and remove the
1499 * other uncst_oui
1500 */
1501 cnt = sec_ie[8];
1502 remove_cnt = (cnt - 1) * 4;
1503 sec_ie[8] = 0x01;
1504 memcpy(&sec_ie[10], &uncst_oui[0], 4);
1505 /*remove the other unicast suit*/
1506 memcpy(&sec_ie[14],
1507 &sec_ie[14 + remove_cnt],
1508 (sec_ie[1] - 14 + 2 -
1509 remove_cnt));
1510 sec_ie[1] = sec_ie[1] - remove_cnt;
1511 }
1512 break;
1513 }
1514 }
1515 }
1516 if ((authmode == _WPA_IE_ID_) || (authmode == _WPA2_IE_ID_)) {
1517 /*copy fixed ie*/
1518 memcpy(out_ie, in_ie, 12);
1519 ielength = 12;
1520 /*copy RSN or SSN*/
1521 if (match) {
1522 memcpy(&out_ie[ielength], &sec_ie[0], sec_ie[1] + 2);
1523 ielength += sec_ie[1] + 2;
1524 if (authmode == _WPA2_IE_ID_) {
1525 /*the Pre-Authentication bit should be zero*/
1526 out_ie[ielength - 1] = 0;
1527 out_ie[ielength - 2] = 0;
1528 }
1529 r8712_report_sec_ie(adapter, authmode, sec_ie);
1530 }
1531 } else {
1532 /*copy fixed ie only*/
1533 memcpy(out_ie, in_ie, 12);
1534 ielength = 12;
1535 if (psecuritypriv->wps_phase) {
1536 memcpy(out_ie + ielength, psecuritypriv->wps_ie,
1537 psecuritypriv->wps_ie_len);
1538 ielength += psecuritypriv->wps_ie_len;
1539 }
1540 }
1541 iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
1542 if (iEntry < 0)
1543 return ielength;
1544 if (authmode == _WPA2_IE_ID_) {
1545 out_ie[ielength] = 1;
1546 ielength++;
1547 out_ie[ielength] = 0; /*PMKID count = 0x0100*/
1548 ielength++;
1549 memcpy(&out_ie[ielength],
1550 &psecuritypriv->PMKIDList[iEntry].PMKID, 16);
1551 ielength += 16;
1552 out_ie[13] += 18;/*PMKID length = 2+16*/
1553 }
1554 return ielength;
1555 }
1556
r8712_init_registrypriv_dev_network(struct _adapter * adapter)1557 void r8712_init_registrypriv_dev_network(struct _adapter *adapter)
1558 {
1559 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1560 struct eeprom_priv *peepriv = &adapter->eeprompriv;
1561 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1562 u8 *myhwaddr = myid(peepriv);
1563
1564 memcpy(pdev_network->MacAddress, myhwaddr, ETH_ALEN);
1565 memcpy(&pdev_network->Ssid, &pregistrypriv->ssid,
1566 sizeof(struct ndis_802_11_ssid));
1567 pdev_network->Configuration.Length =
1568 sizeof(struct NDIS_802_11_CONFIGURATION);
1569 pdev_network->Configuration.BeaconPeriod = 100;
1570 pdev_network->Configuration.FHConfig.Length = 0;
1571 pdev_network->Configuration.FHConfig.HopPattern = 0;
1572 pdev_network->Configuration.FHConfig.HopSet = 0;
1573 pdev_network->Configuration.FHConfig.DwellTime = 0;
1574 }
1575
r8712_update_registrypriv_dev_network(struct _adapter * adapter)1576 void r8712_update_registrypriv_dev_network(struct _adapter *adapter)
1577 {
1578 int sz = 0;
1579 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1580 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1581 struct security_priv *psecuritypriv = &adapter->securitypriv;
1582 struct wlan_network *cur_network = &adapter->mlmepriv.cur_network;
1583
1584 pdev_network->Privacy = cpu_to_le32(psecuritypriv->PrivacyAlgrthm
1585 > 0 ? 1 : 0); /* adhoc no 802.1x */
1586 pdev_network->Rssi = 0;
1587 switch (pregistrypriv->wireless_mode) {
1588 case WIRELESS_11B:
1589 pdev_network->NetworkTypeInUse = Ndis802_11DS;
1590 break;
1591 case WIRELESS_11G:
1592 case WIRELESS_11BG:
1593 pdev_network->NetworkTypeInUse = Ndis802_11OFDM24;
1594 break;
1595 case WIRELESS_11A:
1596 pdev_network->NetworkTypeInUse = Ndis802_11OFDM5;
1597 break;
1598 default:
1599 /* TODO */
1600 break;
1601 }
1602 pdev_network->Configuration.DSConfig = pregistrypriv->channel;
1603 if (cur_network->network.InfrastructureMode == Ndis802_11IBSS)
1604 pdev_network->Configuration.ATIMWindow = 3;
1605 pdev_network->InfrastructureMode = cur_network->network.InfrastructureMode;
1606 /* 1. Supported rates
1607 * 2. IE
1608 */
1609 sz = r8712_generate_ie(pregistrypriv);
1610 pdev_network->IELength = sz;
1611 pdev_network->Length = r8712_get_wlan_bssid_ex_sz(pdev_network);
1612 }
1613
1614 /*the function is at passive_level*/
r8712_joinbss_reset(struct _adapter * padapter)1615 void r8712_joinbss_reset(struct _adapter *padapter)
1616 {
1617 int i;
1618 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1619 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1620
1621 /* todo: if you want to do something io/reg/hw setting before join_bss,
1622 * please add code here
1623 */
1624 phtpriv->ampdu_enable = false;/*reset to disabled*/
1625 for (i = 0; i < 16; i++)
1626 phtpriv->baddbareq_issued[i] = false;/*reset it*/
1627 if (phtpriv->ht_option) {
1628 /* validate usb rx aggregation */
1629 r8712_write8(padapter, 0x102500D9, 48);/*TH = 48 pages, 6k*/
1630 } else {
1631 /* invalidate usb rx aggregation */
1632 /* TH=1 => means that invalidate usb rx aggregation */
1633 r8712_write8(padapter, 0x102500D9, 1);
1634 }
1635 }
1636
1637 /*the function is >= passive_level*/
r8712_restructure_ht_ie(struct _adapter * padapter,u8 * in_ie,u8 * out_ie,uint in_len,uint * pout_len)1638 unsigned int r8712_restructure_ht_ie(struct _adapter *padapter, u8 *in_ie,
1639 u8 *out_ie, uint in_len, uint *pout_len)
1640 {
1641 u32 ielen, out_len;
1642 unsigned char *p;
1643 struct ieee80211_ht_cap ht_capie;
1644 unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
1645 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1646 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
1647 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1648
1649 phtpriv->ht_option = 0;
1650 p = r8712_get_ie(in_ie + 12, WLAN_EID_HT_CAPABILITY, &ielen, in_len - 12);
1651 if (p && (ielen > 0)) {
1652 if (pqospriv->qos_option == 0) {
1653 out_len = *pout_len;
1654 r8712_set_ie(out_ie + out_len, WLAN_EID_VENDOR_SPECIFIC,
1655 _WMM_IE_Length_, WMM_IE, pout_len);
1656 pqospriv->qos_option = 1;
1657 }
1658 out_len = *pout_len;
1659 memset(&ht_capie, 0, sizeof(struct ieee80211_ht_cap));
1660 ht_capie.cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
1661 IEEE80211_HT_CAP_SGI_20 |
1662 IEEE80211_HT_CAP_SGI_40 |
1663 IEEE80211_HT_CAP_TX_STBC |
1664 IEEE80211_HT_CAP_MAX_AMSDU |
1665 IEEE80211_HT_CAP_DSSSCCK40);
1666 ht_capie.ampdu_params_info = (IEEE80211_HT_AMPDU_PARM_FACTOR &
1667 0x03) | (IEEE80211_HT_AMPDU_PARM_DENSITY & 0x00);
1668 r8712_set_ie(out_ie + out_len, WLAN_EID_HT_CAPABILITY,
1669 sizeof(struct ieee80211_ht_cap),
1670 (unsigned char *)&ht_capie, pout_len);
1671 phtpriv->ht_option = 1;
1672 }
1673 return phtpriv->ht_option;
1674 }
1675
1676 /* the function is > passive_level (in critical_section) */
update_ht_cap(struct _adapter * padapter,u8 * pie,uint ie_len)1677 static void update_ht_cap(struct _adapter *padapter, u8 *pie, uint ie_len)
1678 {
1679 u8 *p, max_ampdu_sz;
1680 int i;
1681 uint len;
1682 struct sta_info *bmc_sta, *psta;
1683 struct ieee80211_ht_cap *pht_capie;
1684 struct recv_reorder_ctrl *preorder_ctrl;
1685 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1686 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1687 struct registry_priv *pregistrypriv = &padapter->registrypriv;
1688 struct wlan_network *pcur_network = &(pmlmepriv->cur_network);
1689
1690 if (!phtpriv->ht_option)
1691 return;
1692 /* maybe needs check if ap supports rx ampdu. */
1693 if (!phtpriv->ampdu_enable &&
1694 (pregistrypriv->ampdu_enable == 1))
1695 phtpriv->ampdu_enable = true;
1696 /*check Max Rx A-MPDU Size*/
1697 len = 0;
1698 p = r8712_get_ie(pie + sizeof(struct NDIS_802_11_FIXED_IEs),
1699 WLAN_EID_HT_CAPABILITY,
1700 &len, ie_len -
1701 sizeof(struct NDIS_802_11_FIXED_IEs));
1702 if (p && len > 0) {
1703 pht_capie = (struct ieee80211_ht_cap *)(p + 2);
1704 max_ampdu_sz = (pht_capie->ampdu_params_info &
1705 IEEE80211_HT_AMPDU_PARM_FACTOR);
1706 /* max_ampdu_sz (kbytes); */
1707 max_ampdu_sz = 1 << (max_ampdu_sz + 3);
1708 phtpriv->rx_ampdu_maxlen = max_ampdu_sz;
1709 }
1710 /* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info
1711 * if A-MPDU Rx is enabled, resetting rx_ordering_ctrl
1712 * wstart_b(indicate_seq) to default value=0xffff
1713 * todo: check if AP can send A-MPDU packets
1714 */
1715 bmc_sta = r8712_get_bcmc_stainfo(padapter);
1716 if (bmc_sta) {
1717 for (i = 0; i < 16; i++) {
1718 preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
1719 preorder_ctrl->indicate_seq = 0xffff;
1720 preorder_ctrl->wend_b = 0xffff;
1721 }
1722 }
1723 psta = r8712_get_stainfo(&padapter->stapriv,
1724 pcur_network->network.MacAddress);
1725 if (psta) {
1726 for (i = 0; i < 16; i++) {
1727 preorder_ctrl = &psta->recvreorder_ctrl[i];
1728 preorder_ctrl->indicate_seq = 0xffff;
1729 preorder_ctrl->wend_b = 0xffff;
1730 }
1731 }
1732 len = 0;
1733 p = r8712_get_ie(pie + sizeof(struct NDIS_802_11_FIXED_IEs),
1734 WLAN_EID_HT_OPERATION, &len,
1735 ie_len - sizeof(struct NDIS_802_11_FIXED_IEs));
1736 }
1737
r8712_issue_addbareq_cmd(struct _adapter * padapter,int priority)1738 void r8712_issue_addbareq_cmd(struct _adapter *padapter, int priority)
1739 {
1740 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1741 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1742
1743 if ((phtpriv->ht_option == 1) && (phtpriv->ampdu_enable)) {
1744 if (!phtpriv->baddbareq_issued[priority]) {
1745 r8712_addbareq_cmd(padapter, (u8)priority);
1746 phtpriv->baddbareq_issued[priority] = true;
1747 }
1748 }
1749 }
1750