1 // SPDX-License-Identifier: GPL-2.0
2 /******************************************************************************
3 *
4 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
5 *
6 ******************************************************************************/
7 #define _RTW_MLME_C_
8
9 #include <linux/etherdevice.h>
10 #include <drv_types.h>
11 #include <rtw_debug.h>
12 #include <linux/jiffies.h>
13
14 extern u8 rtw_do_join(struct adapter *padapter);
15
_rtw_init_mlme_priv(struct adapter * padapter)16 sint _rtw_init_mlme_priv(struct adapter *padapter)
17 {
18 sint i;
19 u8 *pbuf;
20 struct wlan_network *pnetwork;
21 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
22 sint res = _SUCCESS;
23
24 pmlmepriv->nic_hdl = (u8 *)padapter;
25
26 pmlmepriv->pscanned = NULL;
27 pmlmepriv->fw_state = WIFI_STATION_STATE; /* Must sync with rtw_wdev_alloc() */
28 /* wdev->iftype = NL80211_IFTYPE_STATION */
29 pmlmepriv->cur_network.network.InfrastructureMode = Ndis802_11AutoUnknown;
30 pmlmepriv->scan_mode = SCAN_ACTIVE;/* 1: active, 0: pasive. Maybe someday we should rename this varable to "active_mode" (Jeff) */
31
32 spin_lock_init(&(pmlmepriv->lock));
33 _rtw_init_queue(&(pmlmepriv->free_bss_pool));
34 _rtw_init_queue(&(pmlmepriv->scanned_queue));
35
36 set_scanned_network_val(pmlmepriv, 0);
37
38 memset(&pmlmepriv->assoc_ssid, 0, sizeof(struct ndis_802_11_ssid));
39
40 pbuf = vzalloc(array_size(MAX_BSS_CNT, sizeof(struct wlan_network)));
41
42 if (pbuf == NULL) {
43 res = _FAIL;
44 goto exit;
45 }
46 pmlmepriv->free_bss_buf = pbuf;
47
48 pnetwork = (struct wlan_network *)pbuf;
49
50 for (i = 0; i < MAX_BSS_CNT; i++) {
51 INIT_LIST_HEAD(&(pnetwork->list));
52
53 list_add_tail(&(pnetwork->list), &(pmlmepriv->free_bss_pool.queue));
54
55 pnetwork++;
56 }
57
58 /* allocate DMA-able/Non-Page memory for cmd_buf and rsp_buf */
59
60 rtw_clear_scan_deny(padapter);
61
62 #define RTW_ROAM_SCAN_RESULT_EXP_MS 5000
63 #define RTW_ROAM_RSSI_DIFF_TH 10
64 #define RTW_ROAM_SCAN_INTERVAL_MS 10000
65
66 pmlmepriv->roam_flags = 0
67 | RTW_ROAM_ON_EXPIRED
68 | RTW_ROAM_ON_RESUME
69 #ifdef CONFIG_LAYER2_ROAMING_ACTIVE /* FIXME */
70 | RTW_ROAM_ACTIVE
71 #endif
72 ;
73
74 pmlmepriv->roam_scanr_exp_ms = RTW_ROAM_SCAN_RESULT_EXP_MS;
75 pmlmepriv->roam_rssi_diff_th = RTW_ROAM_RSSI_DIFF_TH;
76 pmlmepriv->roam_scan_int_ms = RTW_ROAM_SCAN_INTERVAL_MS;
77
78 rtw_init_mlme_timer(padapter);
79
80 exit:
81
82 return res;
83 }
84
rtw_free_mlme_ie_data(u8 ** ppie,u32 * plen)85 static void rtw_free_mlme_ie_data(u8 **ppie, u32 *plen)
86 {
87 if (*ppie) {
88 kfree(*ppie);
89 *plen = 0;
90 *ppie = NULL;
91 }
92 }
93
rtw_free_mlme_priv_ie_data(struct mlme_priv * pmlmepriv)94 void rtw_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv)
95 {
96 rtw_buf_free(&pmlmepriv->assoc_req, &pmlmepriv->assoc_req_len);
97 rtw_buf_free(&pmlmepriv->assoc_rsp, &pmlmepriv->assoc_rsp_len);
98 rtw_free_mlme_ie_data(&pmlmepriv->wps_beacon_ie, &pmlmepriv->wps_beacon_ie_len);
99 rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_req_ie, &pmlmepriv->wps_probe_req_ie_len);
100 rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_resp_ie, &pmlmepriv->wps_probe_resp_ie_len);
101 rtw_free_mlme_ie_data(&pmlmepriv->wps_assoc_resp_ie, &pmlmepriv->wps_assoc_resp_ie_len);
102
103 rtw_free_mlme_ie_data(&pmlmepriv->p2p_beacon_ie, &pmlmepriv->p2p_beacon_ie_len);
104 rtw_free_mlme_ie_data(&pmlmepriv->p2p_probe_req_ie, &pmlmepriv->p2p_probe_req_ie_len);
105 rtw_free_mlme_ie_data(&pmlmepriv->p2p_probe_resp_ie, &pmlmepriv->p2p_probe_resp_ie_len);
106 rtw_free_mlme_ie_data(&pmlmepriv->p2p_go_probe_resp_ie, &pmlmepriv->p2p_go_probe_resp_ie_len);
107 rtw_free_mlme_ie_data(&pmlmepriv->p2p_assoc_req_ie, &pmlmepriv->p2p_assoc_req_ie_len);
108 }
109
_rtw_free_mlme_priv(struct mlme_priv * pmlmepriv)110 void _rtw_free_mlme_priv(struct mlme_priv *pmlmepriv)
111 {
112 if (pmlmepriv) {
113 rtw_free_mlme_priv_ie_data(pmlmepriv);
114 if (pmlmepriv->free_bss_buf) {
115 vfree(pmlmepriv->free_bss_buf);
116 }
117 }
118 }
119
120 /*
121 struct wlan_network *_rtw_dequeue_network(struct __queue *queue)
122 {
123 _irqL irqL;
124
125 struct wlan_network *pnetwork;
126
127 spin_lock_bh(&queue->lock);
128
129 if (list_empty(&queue->queue))
130
131 pnetwork = NULL;
132
133 else
134 {
135 pnetwork = LIST_CONTAINOR(get_next(&queue->queue), struct wlan_network, list);
136
137 list_del_init(&(pnetwork->list));
138 }
139
140 spin_unlock_bh(&queue->lock);
141
142 return pnetwork;
143 }
144 */
145
_rtw_alloc_network(struct mlme_priv * pmlmepriv)146 struct wlan_network *_rtw_alloc_network(struct mlme_priv *pmlmepriv)/* _queue *free_queue) */
147 {
148 struct wlan_network *pnetwork;
149 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
150 struct list_head *plist = NULL;
151
152 spin_lock_bh(&free_queue->lock);
153
154 if (list_empty(&free_queue->queue)) {
155 pnetwork = NULL;
156 goto exit;
157 }
158 plist = get_next(&(free_queue->queue));
159
160 pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);
161
162 list_del_init(&pnetwork->list);
163
164 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("_rtw_alloc_network: ptr =%p\n", plist));
165 pnetwork->network_type = 0;
166 pnetwork->fixed = false;
167 pnetwork->last_scanned = jiffies;
168 pnetwork->aid = 0;
169 pnetwork->join_res = 0;
170
171 pmlmepriv->num_of_scanned++;
172
173 exit:
174 spin_unlock_bh(&free_queue->lock);
175
176 return pnetwork;
177 }
178
_rtw_free_network(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork,u8 isfreeall)179 void _rtw_free_network(struct mlme_priv *pmlmepriv, struct wlan_network *pnetwork, u8 isfreeall)
180 {
181 unsigned int delta_time;
182 u32 lifetime = SCANQUEUE_LIFETIME;
183 /* _irqL irqL; */
184 struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
185
186 if (pnetwork == NULL)
187 return;
188
189 if (pnetwork->fixed == true)
190 return;
191
192 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true) ||
193 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true))
194 lifetime = 1;
195
196 if (!isfreeall) {
197 delta_time = jiffies_to_msecs(jiffies - pnetwork->last_scanned);
198 if (delta_time < lifetime)/* unit:msec */
199 return;
200 }
201
202 spin_lock_bh(&free_queue->lock);
203
204 list_del_init(&(pnetwork->list));
205
206 list_add_tail(&(pnetwork->list), &(free_queue->queue));
207
208 pmlmepriv->num_of_scanned--;
209
210
211 /* DBG_871X("_rtw_free_network:SSID =%s\n", pnetwork->network.Ssid.Ssid); */
212
213 spin_unlock_bh(&free_queue->lock);
214 }
215
_rtw_free_network_nolock(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork)216 void _rtw_free_network_nolock(struct mlme_priv *pmlmepriv, struct wlan_network *pnetwork)
217 {
218
219 struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
220
221 if (pnetwork == NULL)
222 return;
223
224 if (pnetwork->fixed == true)
225 return;
226
227 /* spin_lock_irqsave(&free_queue->lock, irqL); */
228
229 list_del_init(&(pnetwork->list));
230
231 list_add_tail(&(pnetwork->list), get_list_head(free_queue));
232
233 pmlmepriv->num_of_scanned--;
234
235 /* spin_unlock_irqrestore(&free_queue->lock, irqL); */
236 }
237
238 /*
239 return the wlan_network with the matching addr
240
241 Shall be called under atomic context... to avoid possible racing condition...
242 */
_rtw_find_network(struct __queue * scanned_queue,u8 * addr)243 struct wlan_network *_rtw_find_network(struct __queue *scanned_queue, u8 *addr)
244 {
245 struct list_head *phead, *plist;
246 struct wlan_network *pnetwork = NULL;
247 u8 zero_addr[ETH_ALEN] = {0, 0, 0, 0, 0, 0};
248
249 if (!memcmp(zero_addr, addr, ETH_ALEN)) {
250 pnetwork = NULL;
251 goto exit;
252 }
253
254 /* spin_lock_bh(&scanned_queue->lock); */
255
256 phead = get_list_head(scanned_queue);
257 plist = get_next(phead);
258
259 while (plist != phead) {
260 pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);
261
262 if (!memcmp(addr, pnetwork->network.MacAddress, ETH_ALEN))
263 break;
264
265 plist = get_next(plist);
266 }
267
268 if (plist == phead)
269 pnetwork = NULL;
270
271 /* spin_unlock_bh(&scanned_queue->lock); */
272
273 exit:
274 return pnetwork;
275 }
276
_rtw_free_network_queue(struct adapter * padapter,u8 isfreeall)277 void _rtw_free_network_queue(struct adapter *padapter, u8 isfreeall)
278 {
279 struct list_head *phead, *plist;
280 struct wlan_network *pnetwork;
281 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
282 struct __queue *scanned_queue = &pmlmepriv->scanned_queue;
283
284 spin_lock_bh(&scanned_queue->lock);
285
286 phead = get_list_head(scanned_queue);
287 plist = get_next(phead);
288
289 while (phead != plist) {
290
291 pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);
292
293 plist = get_next(plist);
294
295 _rtw_free_network(pmlmepriv, pnetwork, isfreeall);
296
297 }
298
299 spin_unlock_bh(&scanned_queue->lock);
300 }
301
302
303
304
rtw_if_up(struct adapter * padapter)305 sint rtw_if_up(struct adapter *padapter)
306 {
307
308 sint res;
309
310 if (padapter->bDriverStopped || padapter->bSurpriseRemoved ||
311 (check_fwstate(&padapter->mlmepriv, _FW_LINKED) == false)) {
312 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_if_up:bDriverStopped(%d) OR bSurpriseRemoved(%d)", padapter->bDriverStopped, padapter->bSurpriseRemoved));
313 res = false;
314 } else
315 res = true;
316 return res;
317 }
318
319
rtw_generate_random_ibss(u8 * pibss)320 void rtw_generate_random_ibss(u8 *pibss)
321 {
322 unsigned long curtime = jiffies;
323
324 pibss[0] = 0x02; /* in ad-hoc mode bit1 must set to 1 */
325 pibss[1] = 0x11;
326 pibss[2] = 0x87;
327 pibss[3] = (u8)(curtime & 0xff) ;/* p[0]; */
328 pibss[4] = (u8)((curtime>>8) & 0xff) ;/* p[1]; */
329 pibss[5] = (u8)((curtime>>16) & 0xff) ;/* p[2]; */
330 return;
331 }
332
rtw_get_capability_from_ie(u8 * ie)333 u8 *rtw_get_capability_from_ie(u8 *ie)
334 {
335 return (ie + 8 + 2);
336 }
337
338
rtw_get_capability(struct wlan_bssid_ex * bss)339 u16 rtw_get_capability(struct wlan_bssid_ex *bss)
340 {
341 __le16 val;
342
343 memcpy((u8 *)&val, rtw_get_capability_from_ie(bss->IEs), 2);
344
345 return le16_to_cpu(val);
346 }
347
rtw_get_beacon_interval_from_ie(u8 * ie)348 u8 *rtw_get_beacon_interval_from_ie(u8 *ie)
349 {
350 return (ie + 8);
351 }
352
353
rtw_init_mlme_priv(struct adapter * padapter)354 int rtw_init_mlme_priv(struct adapter *padapter)/* struct mlme_priv *pmlmepriv) */
355 {
356 int res;
357
358 res = _rtw_init_mlme_priv(padapter);/* (pmlmepriv); */
359 return res;
360 }
361
rtw_free_mlme_priv(struct mlme_priv * pmlmepriv)362 void rtw_free_mlme_priv(struct mlme_priv *pmlmepriv)
363 {
364 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_free_mlme_priv\n"));
365 _rtw_free_mlme_priv(pmlmepriv);
366 }
367
368 /*
369 static struct wlan_network *rtw_dequeue_network(struct __queue *queue)
370 {
371 struct wlan_network *pnetwork;
372
373 pnetwork = _rtw_dequeue_network(queue);
374 return pnetwork;
375 }
376 */
377
378 struct wlan_network *rtw_alloc_network(struct mlme_priv *pmlmepriv);
rtw_alloc_network(struct mlme_priv * pmlmepriv)379 struct wlan_network *rtw_alloc_network(struct mlme_priv *pmlmepriv)/* _queue *free_queue) */
380 {
381 struct wlan_network *pnetwork;
382
383 pnetwork = _rtw_alloc_network(pmlmepriv);
384 return pnetwork;
385 }
386
387 void rtw_free_network_nolock(struct adapter *padapter, struct wlan_network *pnetwork);
rtw_free_network_nolock(struct adapter * padapter,struct wlan_network * pnetwork)388 void rtw_free_network_nolock(struct adapter *padapter, struct wlan_network *pnetwork)
389 {
390 /* RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_free_network ==> ssid = %s\n\n" , pnetwork->network.Ssid.Ssid)); */
391 _rtw_free_network_nolock(&(padapter->mlmepriv), pnetwork);
392 rtw_cfg80211_unlink_bss(padapter, pnetwork);
393 }
394
395
rtw_free_network_queue(struct adapter * dev,u8 isfreeall)396 void rtw_free_network_queue(struct adapter *dev, u8 isfreeall)
397 {
398 _rtw_free_network_queue(dev, isfreeall);
399 }
400
401 /*
402 return the wlan_network with the matching addr
403
404 Shall be called under atomic context... to avoid possible racing condition...
405 */
rtw_find_network(struct __queue * scanned_queue,u8 * addr)406 struct wlan_network *rtw_find_network(struct __queue *scanned_queue, u8 *addr)
407 {
408 struct wlan_network *pnetwork = _rtw_find_network(scanned_queue, addr);
409
410 return pnetwork;
411 }
412
rtw_is_same_ibss(struct adapter * adapter,struct wlan_network * pnetwork)413 int rtw_is_same_ibss(struct adapter *adapter, struct wlan_network *pnetwork)
414 {
415 int ret = true;
416 struct security_priv *psecuritypriv = &adapter->securitypriv;
417
418 if ((psecuritypriv->dot11PrivacyAlgrthm != _NO_PRIVACY_) &&
419 (pnetwork->network.Privacy == 0))
420 ret = false;
421 else if ((psecuritypriv->dot11PrivacyAlgrthm == _NO_PRIVACY_) &&
422 (pnetwork->network.Privacy == 1))
423 ret = false;
424 else
425 ret = true;
426
427 return ret;
428
429 }
430
is_same_ess(struct wlan_bssid_ex * a,struct wlan_bssid_ex * b)431 inline int is_same_ess(struct wlan_bssid_ex *a, struct wlan_bssid_ex *b)
432 {
433 /* RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("(%s,%d)(%s,%d)\n", */
434 /* a->Ssid.Ssid, a->Ssid.SsidLength, b->Ssid.Ssid, b->Ssid.SsidLength)); */
435 return (a->Ssid.SsidLength == b->Ssid.SsidLength)
436 && !memcmp(a->Ssid.Ssid, b->Ssid.Ssid, a->Ssid.SsidLength);
437 }
438
is_same_network(struct wlan_bssid_ex * src,struct wlan_bssid_ex * dst,u8 feature)439 int is_same_network(struct wlan_bssid_ex *src, struct wlan_bssid_ex *dst, u8 feature)
440 {
441 u16 s_cap, d_cap;
442 __le16 tmps, tmpd;
443
444 if (rtw_bug_check(dst, src, &s_cap, &d_cap) == false)
445 return false;
446
447 memcpy((u8 *)&tmps, rtw_get_capability_from_ie(src->IEs), 2);
448 memcpy((u8 *)&tmpd, rtw_get_capability_from_ie(dst->IEs), 2);
449
450
451 s_cap = le16_to_cpu(tmps);
452 d_cap = le16_to_cpu(tmpd);
453
454 return ((src->Ssid.SsidLength == dst->Ssid.SsidLength) &&
455 /* (src->Configuration.DSConfig == dst->Configuration.DSConfig) && */
456 ((!memcmp(src->MacAddress, dst->MacAddress, ETH_ALEN))) &&
457 ((!memcmp(src->Ssid.Ssid, dst->Ssid.Ssid, src->Ssid.SsidLength))) &&
458 ((s_cap & WLAN_CAPABILITY_IBSS) ==
459 (d_cap & WLAN_CAPABILITY_IBSS)) &&
460 ((s_cap & WLAN_CAPABILITY_BSS) ==
461 (d_cap & WLAN_CAPABILITY_BSS)));
462
463 }
464
_rtw_find_same_network(struct __queue * scanned_queue,struct wlan_network * network)465 struct wlan_network *_rtw_find_same_network(struct __queue *scanned_queue, struct wlan_network *network)
466 {
467 struct list_head *phead, *plist;
468 struct wlan_network *found = NULL;
469
470 phead = get_list_head(scanned_queue);
471 plist = get_next(phead);
472
473 while (plist != phead) {
474 found = LIST_CONTAINOR(plist, struct wlan_network, list);
475
476 if (is_same_network(&network->network, &found->network, 0))
477 break;
478
479 plist = get_next(plist);
480 }
481
482 if (plist == phead)
483 found = NULL;
484
485 return found;
486 }
487
rtw_get_oldest_wlan_network(struct __queue * scanned_queue)488 struct wlan_network *rtw_get_oldest_wlan_network(struct __queue *scanned_queue)
489 {
490 struct list_head *plist, *phead;
491
492
493 struct wlan_network *pwlan = NULL;
494 struct wlan_network *oldest = NULL;
495
496 phead = get_list_head(scanned_queue);
497
498 plist = get_next(phead);
499
500 while (1) {
501
502 if (phead == plist)
503 break;
504
505 pwlan = LIST_CONTAINOR(plist, struct wlan_network, list);
506
507 if (pwlan->fixed != true) {
508 if (oldest == NULL || time_after(oldest->last_scanned, pwlan->last_scanned))
509 oldest = pwlan;
510 }
511
512 plist = get_next(plist);
513 }
514 return oldest;
515
516 }
517
update_network(struct wlan_bssid_ex * dst,struct wlan_bssid_ex * src,struct adapter * padapter,bool update_ie)518 void update_network(struct wlan_bssid_ex *dst, struct wlan_bssid_ex *src,
519 struct adapter *padapter, bool update_ie)
520 {
521 long rssi_ori = dst->Rssi;
522
523 u8 sq_smp = src->PhyInfo.SignalQuality;
524
525 u8 ss_final;
526 u8 sq_final;
527 long rssi_final;
528
529 #if defined(DBG_RX_SIGNAL_DISPLAY_SSID_MONITORED) && 1
530 if (strcmp(dst->Ssid.Ssid, DBG_RX_SIGNAL_DISPLAY_SSID_MONITORED) == 0) {
531 DBG_871X(FUNC_ADPT_FMT" %s("MAC_FMT", ch%u) ss_ori:%3u, sq_ori:%3u, rssi_ori:%3ld, ss_smp:%3u, sq_smp:%3u, rssi_smp:%3ld\n"
532 , FUNC_ADPT_ARG(padapter)
533 , src->Ssid.Ssid, MAC_ARG(src->MacAddress), src->Configuration.DSConfig
534 , ss_ori, sq_ori, rssi_ori
535 , ss_smp, sq_smp, rssi_smp
536 );
537 }
538 #endif
539
540 /* The rule below is 1/5 for sample value, 4/5 for history value */
541 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) && is_same_network(&(padapter->mlmepriv.cur_network.network), src, 0)) {
542 /* Take the recvpriv's value for the connected AP*/
543 ss_final = padapter->recvpriv.signal_strength;
544 sq_final = padapter->recvpriv.signal_qual;
545 /* the rssi value here is undecorated, and will be used for antenna diversity */
546 if (sq_smp != 101) /* from the right channel */
547 rssi_final = (src->Rssi+dst->Rssi*4)/5;
548 else
549 rssi_final = rssi_ori;
550 } else {
551 if (sq_smp != 101) { /* from the right channel */
552 ss_final = ((u32)(src->PhyInfo.SignalStrength)+(u32)(dst->PhyInfo.SignalStrength)*4)/5;
553 sq_final = ((u32)(src->PhyInfo.SignalQuality)+(u32)(dst->PhyInfo.SignalQuality)*4)/5;
554 rssi_final = (src->Rssi+dst->Rssi*4)/5;
555 } else {
556 /* bss info not receiving from the right channel, use the original RX signal infos */
557 ss_final = dst->PhyInfo.SignalStrength;
558 sq_final = dst->PhyInfo.SignalQuality;
559 rssi_final = dst->Rssi;
560 }
561
562 }
563
564 if (update_ie) {
565 dst->Reserved[0] = src->Reserved[0];
566 dst->Reserved[1] = src->Reserved[1];
567 memcpy((u8 *)dst, (u8 *)src, get_wlan_bssid_ex_sz(src));
568 }
569
570 dst->PhyInfo.SignalStrength = ss_final;
571 dst->PhyInfo.SignalQuality = sq_final;
572 dst->Rssi = rssi_final;
573
574 #if defined(DBG_RX_SIGNAL_DISPLAY_SSID_MONITORED) && 1
575 if (strcmp(dst->Ssid.Ssid, DBG_RX_SIGNAL_DISPLAY_SSID_MONITORED) == 0) {
576 DBG_871X(FUNC_ADPT_FMT" %s("MAC_FMT"), SignalStrength:%u, SignalQuality:%u, RawRSSI:%ld\n"
577 , FUNC_ADPT_ARG(padapter)
578 , dst->Ssid.Ssid, MAC_ARG(dst->MacAddress), dst->PhyInfo.SignalStrength, dst->PhyInfo.SignalQuality, dst->Rssi);
579 }
580 #endif
581 }
582
update_current_network(struct adapter * adapter,struct wlan_bssid_ex * pnetwork)583 static void update_current_network(struct adapter *adapter, struct wlan_bssid_ex *pnetwork)
584 {
585 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
586
587 rtw_bug_check(&(pmlmepriv->cur_network.network),
588 &(pmlmepriv->cur_network.network),
589 &(pmlmepriv->cur_network.network),
590 &(pmlmepriv->cur_network.network));
591
592 if ((check_fwstate(pmlmepriv, _FW_LINKED) == true) && (is_same_network(&(pmlmepriv->cur_network.network), pnetwork, 0))) {
593 /* RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,"Same Network\n"); */
594
595 /* if (pmlmepriv->cur_network.network.IELength<= pnetwork->IELength) */
596 {
597 update_network(&(pmlmepriv->cur_network.network), pnetwork, adapter, true);
598 rtw_update_protection(adapter, (pmlmepriv->cur_network.network.IEs) + sizeof(struct ndis_802_11_fix_ie),
599 pmlmepriv->cur_network.network.IELength);
600 }
601 }
602 }
603
604
605 /*
606
607 Caller must hold pmlmepriv->lock first.
608
609
610 */
rtw_update_scanned_network(struct adapter * adapter,struct wlan_bssid_ex * target)611 void rtw_update_scanned_network(struct adapter *adapter, struct wlan_bssid_ex *target)
612 {
613 struct list_head *plist, *phead;
614 u32 bssid_ex_sz;
615 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
616 struct __queue *queue = &(pmlmepriv->scanned_queue);
617 struct wlan_network *pnetwork = NULL;
618 struct wlan_network *oldest = NULL;
619 int target_find = 0;
620 u8 feature = 0;
621
622 spin_lock_bh(&queue->lock);
623 phead = get_list_head(queue);
624 plist = get_next(phead);
625
626 while (1) {
627 if (phead == plist)
628 break;
629
630 pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);
631
632 rtw_bug_check(pnetwork, pnetwork, pnetwork, pnetwork);
633
634 if (is_same_network(&(pnetwork->network), target, feature)) {
635 target_find = 1;
636 break;
637 }
638
639 if (rtw_roam_flags(adapter)) {
640 /* TODO: don't select netowrk in the same ess as oldest if it's new enough*/
641 }
642
643 if (oldest == NULL || time_after(oldest->last_scanned, pnetwork->last_scanned))
644 oldest = pnetwork;
645
646 plist = get_next(plist);
647
648 }
649
650
651 /* If we didn't find a match, then get a new network slot to initialize
652 * with this beacon's information */
653 /* if (phead == plist) { */
654 if (!target_find) {
655 if (list_empty(&pmlmepriv->free_bss_pool.queue)) {
656 /* If there are no more slots, expire the oldest */
657 /* list_del_init(&oldest->list); */
658 pnetwork = oldest;
659 if (pnetwork == NULL) {
660 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n\n\nsomething wrong here\n\n\n"));
661 goto exit;
662 }
663 memcpy(&(pnetwork->network), target, get_wlan_bssid_ex_sz(target));
664 /* variable initialize */
665 pnetwork->fixed = false;
666 pnetwork->last_scanned = jiffies;
667
668 pnetwork->network_type = 0;
669 pnetwork->aid = 0;
670 pnetwork->join_res = 0;
671
672 /* bss info not receiving from the right channel */
673 if (pnetwork->network.PhyInfo.SignalQuality == 101)
674 pnetwork->network.PhyInfo.SignalQuality = 0;
675 } else {
676 /* Otherwise just pull from the free list */
677
678 pnetwork = rtw_alloc_network(pmlmepriv); /* will update scan_time */
679
680 if (pnetwork == NULL) {
681 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n\n\nsomething wrong here\n\n\n"));
682 goto exit;
683 }
684
685 bssid_ex_sz = get_wlan_bssid_ex_sz(target);
686 target->Length = bssid_ex_sz;
687 memcpy(&(pnetwork->network), target, bssid_ex_sz);
688
689 pnetwork->last_scanned = jiffies;
690
691 /* bss info not receiving from the right channel */
692 if (pnetwork->network.PhyInfo.SignalQuality == 101)
693 pnetwork->network.PhyInfo.SignalQuality = 0;
694
695 list_add_tail(&(pnetwork->list), &(queue->queue));
696
697 }
698 } else {
699 /* we have an entry and we are going to update it. But this entry may
700 * be already expired. In this case we do the same as we found a new
701 * net and call the new_net handler
702 */
703 bool update_ie = true;
704
705 pnetwork->last_scanned = jiffies;
706
707 /* target.Reserved[0]== 1, means that scanned network is a bcn frame. */
708 if ((pnetwork->network.IELength > target->IELength) && (target->Reserved[0] == 1))
709 update_ie = false;
710
711 /* probe resp(3) > beacon(1) > probe req(2) */
712 if ((target->Reserved[0] != 2) &&
713 (target->Reserved[0] >= pnetwork->network.Reserved[0])
714 ) {
715 update_ie = true;
716 } else {
717 update_ie = false;
718 }
719
720 update_network(&(pnetwork->network), target, adapter, update_ie);
721 }
722
723 exit:
724 spin_unlock_bh(&queue->lock);
725 }
726
727 void rtw_add_network(struct adapter *adapter, struct wlan_bssid_ex *pnetwork);
rtw_add_network(struct adapter * adapter,struct wlan_bssid_ex * pnetwork)728 void rtw_add_network(struct adapter *adapter, struct wlan_bssid_ex *pnetwork)
729 {
730 /* struct __queue *queue = &(pmlmepriv->scanned_queue); */
731
732 /* spin_lock_bh(&queue->lock); */
733
734 update_current_network(adapter, pnetwork);
735
736 rtw_update_scanned_network(adapter, pnetwork);
737
738 /* spin_unlock_bh(&queue->lock); */
739 }
740
741 /* select the desired network based on the capability of the (i)bss. */
742 /* check items: (1) security */
743 /* (2) network_type */
744 /* (3) WMM */
745 /* (4) HT */
746 /* (5) others */
747 int rtw_is_desired_network(struct adapter *adapter, struct wlan_network *pnetwork);
rtw_is_desired_network(struct adapter * adapter,struct wlan_network * pnetwork)748 int rtw_is_desired_network(struct adapter *adapter, struct wlan_network *pnetwork)
749 {
750 struct security_priv *psecuritypriv = &adapter->securitypriv;
751 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
752 u32 desired_encmode;
753 u32 privacy;
754
755 /* u8 wps_ie[512]; */
756 uint wps_ielen;
757
758 int bselected = true;
759
760 desired_encmode = psecuritypriv->ndisencryptstatus;
761 privacy = pnetwork->network.Privacy;
762
763 if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
764 if (rtw_get_wps_ie(pnetwork->network.IEs+_FIXED_IE_LENGTH_, pnetwork->network.IELength-_FIXED_IE_LENGTH_, NULL, &wps_ielen) != NULL)
765 return true;
766 else
767 return false;
768
769 }
770 if (adapter->registrypriv.wifi_spec == 1) { /* for correct flow of 8021X to do.... */
771 u8 *p = NULL;
772 uint ie_len = 0;
773
774 if ((desired_encmode == Ndis802_11EncryptionDisabled) && (privacy != 0))
775 bselected = false;
776
777 if (psecuritypriv->ndisauthtype == Ndis802_11AuthModeWPA2PSK) {
778 p = rtw_get_ie(pnetwork->network.IEs + _BEACON_IE_OFFSET_, _RSN_IE_2_, &ie_len, (pnetwork->network.IELength - _BEACON_IE_OFFSET_));
779 if (p && ie_len > 0) {
780 bselected = true;
781 } else {
782 bselected = false;
783 }
784 }
785 }
786
787
788 if ((desired_encmode != Ndis802_11EncryptionDisabled) && (privacy == 0)) {
789 DBG_871X("desired_encmode: %d, privacy: %d\n", desired_encmode, privacy);
790 bselected = false;
791 }
792
793 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) {
794 if (pnetwork->network.InfrastructureMode != pmlmepriv->cur_network.network.InfrastructureMode)
795 bselected = false;
796 }
797
798
799 return bselected;
800 }
801
802 /* TODO: Perry : For Power Management */
rtw_atimdone_event_callback(struct adapter * adapter,u8 * pbuf)803 void rtw_atimdone_event_callback(struct adapter *adapter, u8 *pbuf)
804 {
805 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("receive atimdone_evet\n"));
806 }
807
808
rtw_survey_event_callback(struct adapter * adapter,u8 * pbuf)809 void rtw_survey_event_callback(struct adapter *adapter, u8 *pbuf)
810 {
811 u32 len;
812 struct wlan_bssid_ex *pnetwork;
813 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
814
815 pnetwork = (struct wlan_bssid_ex *)pbuf;
816
817 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_survey_event_callback, ssid =%s\n", pnetwork->Ssid.Ssid));
818
819 len = get_wlan_bssid_ex_sz(pnetwork);
820 if (len > (sizeof(struct wlan_bssid_ex))) {
821 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n ****rtw_survey_event_callback: return a wrong bss ***\n"));
822 return;
823 }
824
825
826 spin_lock_bh(&pmlmepriv->lock);
827
828 /* update IBSS_network 's timestamp */
829 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) == true) {
830 /* RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,"rtw_survey_event_callback : WIFI_ADHOC_MASTER_STATE\n\n"); */
831 if (!memcmp(&(pmlmepriv->cur_network.network.MacAddress), pnetwork->MacAddress, ETH_ALEN)) {
832 struct wlan_network *ibss_wlan = NULL;
833
834 memcpy(pmlmepriv->cur_network.network.IEs, pnetwork->IEs, 8);
835 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
836 ibss_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->MacAddress);
837 if (ibss_wlan) {
838 memcpy(ibss_wlan->network.IEs, pnetwork->IEs, 8);
839 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
840 goto exit;
841 }
842 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
843 }
844 }
845
846 /* lock pmlmepriv->lock when you accessing network_q */
847 if ((check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) == false) {
848 if (pnetwork->Ssid.Ssid[0] == 0) {
849 pnetwork->Ssid.SsidLength = 0;
850 }
851 rtw_add_network(adapter, pnetwork);
852 }
853
854 exit:
855
856 spin_unlock_bh(&pmlmepriv->lock);
857
858 return;
859 }
860
861
862
rtw_surveydone_event_callback(struct adapter * adapter,u8 * pbuf)863 void rtw_surveydone_event_callback(struct adapter *adapter, u8 *pbuf)
864 {
865 u8 timer_cancelled = false;
866 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
867
868 spin_lock_bh(&pmlmepriv->lock);
869 if (pmlmepriv->wps_probe_req_ie) {
870 pmlmepriv->wps_probe_req_ie_len = 0;
871 kfree(pmlmepriv->wps_probe_req_ie);
872 pmlmepriv->wps_probe_req_ie = NULL;
873 }
874
875 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_surveydone_event_callback: fw_state:%x\n\n", get_fwstate(pmlmepriv)));
876
877 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
878 /* u8 timer_cancelled; */
879
880 timer_cancelled = true;
881 /* _cancel_timer(&pmlmepriv->scan_to_timer, &timer_cancelled); */
882
883 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
884 } else {
885
886 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("nic status =%x, survey done event comes too late!\n", get_fwstate(pmlmepriv)));
887 }
888 spin_unlock_bh(&pmlmepriv->lock);
889
890 if (timer_cancelled)
891 _cancel_timer(&pmlmepriv->scan_to_timer, &timer_cancelled);
892
893
894 spin_lock_bh(&pmlmepriv->lock);
895
896 rtw_set_signal_stat_timer(&adapter->recvpriv);
897
898 if (pmlmepriv->to_join == true) {
899 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true)) {
900 if (check_fwstate(pmlmepriv, _FW_LINKED) == false) {
901 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
902
903 if (rtw_select_and_join_from_scanned_queue(pmlmepriv) == _SUCCESS) {
904 _set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
905 } else{
906 struct wlan_bssid_ex *pdev_network = &(adapter->registrypriv.dev_network);
907 u8 *pibss = adapter->registrypriv.dev_network.MacAddress;
908
909 /* pmlmepriv->fw_state ^= _FW_UNDER_SURVEY;because don't set assoc_timer */
910 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
911
912 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("switching to adhoc master\n"));
913
914 memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
915
916 rtw_update_registrypriv_dev_network(adapter);
917 rtw_generate_random_ibss(pibss);
918
919 pmlmepriv->fw_state = WIFI_ADHOC_MASTER_STATE;
920
921 if (rtw_createbss_cmd(adapter) != _SUCCESS) {
922 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Error =>rtw_createbss_cmd status FAIL\n"));
923 }
924
925 pmlmepriv->to_join = false;
926 }
927 }
928 } else{
929 int s_ret;
930 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
931 pmlmepriv->to_join = false;
932 s_ret = rtw_select_and_join_from_scanned_queue(pmlmepriv);
933 if (_SUCCESS == s_ret) {
934 _set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
935 } else if (s_ret == 2) {/* there is no need to wait for join */
936 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
937 rtw_indicate_connect(adapter);
938 } else{
939 DBG_871X("try_to_join, but select scanning queue fail, to_roam:%d\n", rtw_to_roam(adapter));
940
941 if (rtw_to_roam(adapter) != 0) {
942 if (rtw_dec_to_roam(adapter) == 0
943 || _SUCCESS != rtw_sitesurvey_cmd(adapter, &pmlmepriv->assoc_ssid, 1, NULL, 0)
944 ) {
945 rtw_set_to_roam(adapter, 0);
946 #ifdef CONFIG_INTEL_WIDI
947 if (adapter->mlmepriv.widi_state == INTEL_WIDI_STATE_ROAMING) {
948 memset(pmlmepriv->sa_ext, 0x00, L2SDTA_SERVICE_VE_LEN);
949 intel_widi_wk_cmd(adapter, INTEL_WIDI_LISTEN_WK, NULL, 0);
950 DBG_871X("change to widi listen\n");
951 }
952 #endif /* CONFIG_INTEL_WIDI */
953 rtw_free_assoc_resources(adapter, 1);
954 rtw_indicate_disconnect(adapter);
955 } else {
956 pmlmepriv->to_join = true;
957 }
958 } else
959 rtw_indicate_disconnect(adapter);
960
961 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
962 }
963 }
964 } else {
965 if (rtw_chk_roam_flags(adapter, RTW_ROAM_ACTIVE)) {
966 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)
967 && check_fwstate(pmlmepriv, _FW_LINKED)) {
968 if (rtw_select_roaming_candidate(pmlmepriv) == _SUCCESS) {
969 receive_disconnect(adapter, pmlmepriv->cur_network.network.MacAddress
970 , WLAN_REASON_ACTIVE_ROAM);
971 }
972 }
973 }
974 }
975
976 /* DBG_871X("scan complete in %dms\n", jiffies_to_msecs(jiffies - pmlmepriv->scan_start_time)); */
977
978 spin_unlock_bh(&pmlmepriv->lock);
979
980 rtw_os_xmit_schedule(adapter);
981
982 rtw_cfg80211_surveydone_event_callback(adapter);
983
984 rtw_indicate_scan_done(adapter, false);
985 }
986
rtw_dummy_event_callback(struct adapter * adapter,u8 * pbuf)987 void rtw_dummy_event_callback(struct adapter *adapter, u8 *pbuf)
988 {
989 }
990
rtw_fwdbg_event_callback(struct adapter * adapter,u8 * pbuf)991 void rtw_fwdbg_event_callback(struct adapter *adapter, u8 *pbuf)
992 {
993 }
994
free_scanqueue(struct mlme_priv * pmlmepriv)995 static void free_scanqueue(struct mlme_priv *pmlmepriv)
996 {
997 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
998 struct __queue *scan_queue = &pmlmepriv->scanned_queue;
999 struct list_head *plist, *phead, *ptemp;
1000
1001 RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, ("+free_scanqueue\n"));
1002 spin_lock_bh(&scan_queue->lock);
1003 spin_lock_bh(&free_queue->lock);
1004
1005 phead = get_list_head(scan_queue);
1006 plist = get_next(phead);
1007
1008 while (plist != phead) {
1009 ptemp = get_next(plist);
1010 list_del_init(plist);
1011 list_add_tail(plist, &free_queue->queue);
1012 plist = ptemp;
1013 pmlmepriv->num_of_scanned--;
1014 }
1015
1016 spin_unlock_bh(&free_queue->lock);
1017 spin_unlock_bh(&scan_queue->lock);
1018 }
1019
rtw_reset_rx_info(struct debug_priv * pdbgpriv)1020 static void rtw_reset_rx_info(struct debug_priv *pdbgpriv)
1021 {
1022 pdbgpriv->dbg_rx_ampdu_drop_count = 0;
1023 pdbgpriv->dbg_rx_ampdu_forced_indicate_count = 0;
1024 pdbgpriv->dbg_rx_ampdu_loss_count = 0;
1025 pdbgpriv->dbg_rx_dup_mgt_frame_drop_count = 0;
1026 pdbgpriv->dbg_rx_ampdu_window_shift_cnt = 0;
1027 }
1028
find_network(struct adapter * adapter)1029 static void find_network(struct adapter *adapter)
1030 {
1031 struct wlan_network *pwlan = NULL;
1032 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1033 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
1034
1035 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
1036 if (pwlan)
1037 pwlan->fixed = false;
1038 else
1039 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_free_assoc_resources : pwlan == NULL\n\n"));
1040
1041
1042 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) &&
1043 (adapter->stapriv.asoc_sta_count == 1))
1044 rtw_free_network_nolock(adapter, pwlan);
1045 }
1046
1047 /*
1048 *rtw_free_assoc_resources: the caller has to lock pmlmepriv->lock
1049 */
rtw_free_assoc_resources(struct adapter * adapter,int lock_scanned_queue)1050 void rtw_free_assoc_resources(struct adapter *adapter, int lock_scanned_queue)
1051 {
1052 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1053 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
1054 struct sta_priv *pstapriv = &adapter->stapriv;
1055 struct dvobj_priv *psdpriv = adapter->dvobj;
1056 struct debug_priv *pdbgpriv = &psdpriv->drv_dbg;
1057
1058 RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, ("+rtw_free_assoc_resources\n"));
1059 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("tgt_network->network.MacAddress ="MAC_FMT" ssid =%s\n",
1060 MAC_ARG(tgt_network->network.MacAddress), tgt_network->network.Ssid.Ssid));
1061
1062 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE|WIFI_AP_STATE)) {
1063 struct sta_info *psta;
1064
1065 psta = rtw_get_stainfo(&adapter->stapriv, tgt_network->network.MacAddress);
1066 spin_lock_bh(&(pstapriv->sta_hash_lock));
1067 rtw_free_stainfo(adapter, psta);
1068
1069 spin_unlock_bh(&(pstapriv->sta_hash_lock));
1070
1071 }
1072
1073 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE|WIFI_ADHOC_MASTER_STATE|WIFI_AP_STATE)) {
1074 struct sta_info *psta;
1075
1076 rtw_free_all_stainfo(adapter);
1077
1078 psta = rtw_get_bcmc_stainfo(adapter);
1079 rtw_free_stainfo(adapter, psta);
1080
1081 rtw_init_bcmc_stainfo(adapter);
1082 }
1083
1084 find_network(adapter);
1085
1086 if (lock_scanned_queue)
1087 adapter->securitypriv.key_mask = 0;
1088
1089 rtw_reset_rx_info(pdbgpriv);
1090 }
1091
1092 /*
1093 *rtw_indicate_connect: the caller has to lock pmlmepriv->lock
1094 */
rtw_indicate_connect(struct adapter * padapter)1095 void rtw_indicate_connect(struct adapter *padapter)
1096 {
1097 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1098
1099 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_indicate_connect\n"));
1100
1101 pmlmepriv->to_join = false;
1102
1103 if (!check_fwstate(&padapter->mlmepriv, _FW_LINKED)) {
1104
1105 set_fwstate(pmlmepriv, _FW_LINKED);
1106
1107 rtw_os_indicate_connect(padapter);
1108 }
1109
1110 rtw_set_to_roam(padapter, 0);
1111 #ifdef CONFIG_INTEL_WIDI
1112 if (padapter->mlmepriv.widi_state == INTEL_WIDI_STATE_ROAMING) {
1113 memset(pmlmepriv->sa_ext, 0x00, L2SDTA_SERVICE_VE_LEN);
1114 intel_widi_wk_cmd(padapter, INTEL_WIDI_LISTEN_WK, NULL, 0);
1115 DBG_871X("change to widi listen\n");
1116 }
1117 #endif /* CONFIG_INTEL_WIDI */
1118
1119 rtw_set_scan_deny(padapter, 3000);
1120
1121 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("-rtw_indicate_connect: fw_state = 0x%08x\n", get_fwstate(pmlmepriv)));
1122 }
1123
1124 /*
1125 *rtw_indicate_disconnect: the caller has to lock pmlmepriv->lock
1126 */
rtw_indicate_disconnect(struct adapter * padapter)1127 void rtw_indicate_disconnect(struct adapter *padapter)
1128 {
1129 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1130
1131 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_indicate_disconnect\n"));
1132
1133 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING|WIFI_UNDER_WPS);
1134
1135 /* DBG_871X("clear wps when %s\n", __func__); */
1136
1137 if (rtw_to_roam(padapter) > 0)
1138 _clr_fwstate_(pmlmepriv, _FW_LINKED);
1139
1140 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED)
1141 || (rtw_to_roam(padapter) <= 0)
1142 ) {
1143 rtw_os_indicate_disconnect(padapter);
1144
1145 /* set ips_deny_time to avoid enter IPS before LPS leave */
1146 rtw_set_ips_deny(padapter, 3000);
1147
1148 _clr_fwstate_(pmlmepriv, _FW_LINKED);
1149
1150 rtw_clear_scan_deny(padapter);
1151 }
1152
1153 rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_DISCONNECT, 1);
1154 }
1155
rtw_indicate_scan_done(struct adapter * padapter,bool aborted)1156 inline void rtw_indicate_scan_done(struct adapter *padapter, bool aborted)
1157 {
1158 DBG_871X(FUNC_ADPT_FMT"\n", FUNC_ADPT_ARG(padapter));
1159
1160 rtw_os_indicate_scan_done(padapter, aborted);
1161
1162 if (is_primary_adapter(padapter) &&
1163 (!adapter_to_pwrctl(padapter)->bInSuspend) &&
1164 (!check_fwstate(&padapter->mlmepriv,
1165 WIFI_ASOC_STATE|WIFI_UNDER_LINKING))) {
1166 struct pwrctrl_priv *pwrpriv;
1167
1168 pwrpriv = adapter_to_pwrctl(padapter);
1169 rtw_set_ips_deny(padapter, 0);
1170 _set_timer(&padapter->mlmepriv.dynamic_chk_timer, 1);
1171 }
1172 }
1173
rtw_scan_abort(struct adapter * adapter)1174 void rtw_scan_abort(struct adapter *adapter)
1175 {
1176 unsigned long start;
1177 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1178 struct mlme_ext_priv *pmlmeext = &(adapter->mlmeextpriv);
1179
1180 start = jiffies;
1181 pmlmeext->scan_abort = true;
1182 while (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)
1183 && jiffies_to_msecs(start) <= 200) {
1184
1185 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1186 break;
1187
1188 DBG_871X(FUNC_NDEV_FMT"fw_state = _FW_UNDER_SURVEY!\n", FUNC_NDEV_ARG(adapter->pnetdev));
1189 msleep(20);
1190 }
1191
1192 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
1193 if (!adapter->bDriverStopped && !adapter->bSurpriseRemoved)
1194 DBG_871X(FUNC_NDEV_FMT"waiting for scan_abort time out!\n", FUNC_NDEV_ARG(adapter->pnetdev));
1195 rtw_indicate_scan_done(adapter, true);
1196 }
1197 pmlmeext->scan_abort = false;
1198 }
1199
rtw_joinbss_update_stainfo(struct adapter * padapter,struct wlan_network * pnetwork)1200 static struct sta_info *rtw_joinbss_update_stainfo(struct adapter *padapter, struct wlan_network *pnetwork)
1201 {
1202 int i;
1203 struct sta_info *bmc_sta, *psta = NULL;
1204 struct recv_reorder_ctrl *preorder_ctrl;
1205 struct sta_priv *pstapriv = &padapter->stapriv;
1206 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1207
1208 psta = rtw_get_stainfo(pstapriv, pnetwork->network.MacAddress);
1209 if (psta == NULL) {
1210 psta = rtw_alloc_stainfo(pstapriv, pnetwork->network.MacAddress);
1211 }
1212
1213 if (psta) { /* update ptarget_sta */
1214
1215 DBG_871X("%s\n", __func__);
1216
1217 psta->aid = pnetwork->join_res;
1218
1219 update_sta_info(padapter, psta);
1220
1221 /* update station supportRate */
1222 psta->bssratelen = rtw_get_rateset_len(pnetwork->network.SupportedRates);
1223 memcpy(psta->bssrateset, pnetwork->network.SupportedRates, psta->bssratelen);
1224 rtw_hal_update_sta_rate_mask(padapter, psta);
1225
1226 psta->wireless_mode = pmlmeext->cur_wireless_mode;
1227 psta->raid = rtw_hal_networktype_to_raid(padapter, psta);
1228
1229
1230 /* sta mode */
1231 rtw_hal_set_odm_var(padapter, HAL_ODM_STA_INFO, psta, true);
1232
1233 /* security related */
1234 if (padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
1235 padapter->securitypriv.binstallGrpkey = false;
1236 padapter->securitypriv.busetkipkey = false;
1237 padapter->securitypriv.bgrpkey_handshake = false;
1238
1239 psta->ieee8021x_blocked = true;
1240 psta->dot118021XPrivacy = padapter->securitypriv.dot11PrivacyAlgrthm;
1241
1242 memset((u8 *)&psta->dot118021x_UncstKey, 0, sizeof(union Keytype));
1243
1244 memset((u8 *)&psta->dot11tkiprxmickey, 0, sizeof(union Keytype));
1245 memset((u8 *)&psta->dot11tkiptxmickey, 0, sizeof(union Keytype));
1246
1247 memset((u8 *)&psta->dot11txpn, 0, sizeof(union pn48));
1248 psta->dot11txpn.val = psta->dot11txpn.val + 1;
1249 memset((u8 *)&psta->dot11wtxpn, 0, sizeof(union pn48));
1250 memset((u8 *)&psta->dot11rxpn, 0, sizeof(union pn48));
1251 }
1252
1253 /* Commented by Albert 2012/07/21 */
1254 /* When doing the WPS, the wps_ie_len won't equal to 0 */
1255 /* And the Wi-Fi driver shouldn't allow the data packet to be transmitted. */
1256 if (padapter->securitypriv.wps_ie_len != 0) {
1257 psta->ieee8021x_blocked = true;
1258 padapter->securitypriv.wps_ie_len = 0;
1259 }
1260
1261
1262 /* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info */
1263 /* if A-MPDU Rx is enabled, resetting rx_ordering_ctrl wstart_b(indicate_seq) to default value = 0xffff */
1264 /* todo: check if AP can send A-MPDU packets */
1265 for (i = 0; i < 16 ; i++) {
1266 /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
1267 preorder_ctrl = &psta->recvreorder_ctrl[i];
1268 preorder_ctrl->enable = false;
1269 preorder_ctrl->indicate_seq = 0xffff;
1270 #ifdef DBG_RX_SEQ
1271 DBG_871X("DBG_RX_SEQ %s:%d indicate_seq:%u\n", __func__, __LINE__,
1272 preorder_ctrl->indicate_seq);
1273 #endif
1274 preorder_ctrl->wend_b = 0xffff;
1275 preorder_ctrl->wsize_b = 64;/* max_ampdu_sz;ex. 32(kbytes) -> wsize_b =32 */
1276 }
1277
1278
1279 bmc_sta = rtw_get_bcmc_stainfo(padapter);
1280 if (bmc_sta) {
1281 for (i = 0; i < 16 ; i++) {
1282 /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
1283 preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
1284 preorder_ctrl->enable = false;
1285 preorder_ctrl->indicate_seq = 0xffff;
1286 #ifdef DBG_RX_SEQ
1287 DBG_871X("DBG_RX_SEQ %s:%d indicate_seq:%u\n", __func__, __LINE__,
1288 preorder_ctrl->indicate_seq);
1289 #endif
1290 preorder_ctrl->wend_b = 0xffff;
1291 preorder_ctrl->wsize_b = 64;/* max_ampdu_sz;ex. 32(kbytes) -> wsize_b =32 */
1292 }
1293 }
1294 }
1295
1296 return psta;
1297
1298 }
1299
1300 /* pnetwork : returns from rtw_joinbss_event_callback */
1301 /* ptarget_wlan: found from scanned_queue */
rtw_joinbss_update_network(struct adapter * padapter,struct wlan_network * ptarget_wlan,struct wlan_network * pnetwork)1302 static void rtw_joinbss_update_network(struct adapter *padapter, struct wlan_network *ptarget_wlan, struct wlan_network *pnetwork)
1303 {
1304 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
1305 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
1306
1307 DBG_871X("%s\n", __func__);
1308
1309 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\nfw_state:%x, BSSID:"MAC_FMT"\n"
1310 , get_fwstate(pmlmepriv), MAC_ARG(pnetwork->network.MacAddress)));
1311
1312
1313 /* why not use ptarget_wlan?? */
1314 memcpy(&cur_network->network, &pnetwork->network, pnetwork->network.Length);
1315 /* some IEs in pnetwork is wrong, so we should use ptarget_wlan IEs */
1316 cur_network->network.IELength = ptarget_wlan->network.IELength;
1317 memcpy(&cur_network->network.IEs[0], &ptarget_wlan->network.IEs[0], MAX_IE_SZ);
1318
1319 cur_network->aid = pnetwork->join_res;
1320
1321
1322 rtw_set_signal_stat_timer(&padapter->recvpriv);
1323
1324 padapter->recvpriv.signal_strength = ptarget_wlan->network.PhyInfo.SignalStrength;
1325 padapter->recvpriv.signal_qual = ptarget_wlan->network.PhyInfo.SignalQuality;
1326 /* the ptarget_wlan->network.Rssi is raw data, we use ptarget_wlan->network.PhyInfo.SignalStrength instead (has scaled) */
1327 padapter->recvpriv.rssi = translate_percentage_to_dbm(ptarget_wlan->network.PhyInfo.SignalStrength);
1328 #if defined(DBG_RX_SIGNAL_DISPLAY_PROCESSING) && 1
1329 DBG_871X(FUNC_ADPT_FMT" signal_strength:%3u, rssi:%3d, signal_qual:%3u"
1330 "\n"
1331 , FUNC_ADPT_ARG(padapter)
1332 , padapter->recvpriv.signal_strength
1333 , padapter->recvpriv.rssi
1334 , padapter->recvpriv.signal_qual
1335 );
1336 #endif
1337
1338 rtw_set_signal_stat_timer(&padapter->recvpriv);
1339
1340 /* update fw_state will clr _FW_UNDER_LINKING here indirectly */
1341 switch (pnetwork->network.InfrastructureMode) {
1342 case Ndis802_11Infrastructure:
1343
1344 if (pmlmepriv->fw_state&WIFI_UNDER_WPS)
1345 pmlmepriv->fw_state = WIFI_STATION_STATE|WIFI_UNDER_WPS;
1346 else
1347 pmlmepriv->fw_state = WIFI_STATION_STATE;
1348
1349 break;
1350 case Ndis802_11IBSS:
1351 pmlmepriv->fw_state = WIFI_ADHOC_STATE;
1352 break;
1353 default:
1354 pmlmepriv->fw_state = WIFI_NULL_STATE;
1355 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Invalid network_mode\n"));
1356 break;
1357 }
1358
1359 rtw_update_protection(padapter, (cur_network->network.IEs) + sizeof(struct ndis_802_11_fix_ie),
1360 (cur_network->network.IELength));
1361
1362 rtw_update_ht_cap(padapter, cur_network->network.IEs, cur_network->network.IELength, (u8) cur_network->network.Configuration.DSConfig);
1363 }
1364
1365 /* Notes: the function could be > passive_level (the same context as Rx tasklet) */
1366 /* pnetwork : returns from rtw_joinbss_event_callback */
1367 /* ptarget_wlan: found from scanned_queue */
1368 /* if join_res > 0, for (fw_state ==WIFI_STATION_STATE), we check if "ptarget_sta" & "ptarget_wlan" exist. */
1369 /* if join_res > 0, for (fw_state ==WIFI_ADHOC_STATE), we only check if "ptarget_wlan" exist. */
1370 /* if join_res > 0, update "cur_network->network" from "pnetwork->network" if (ptarget_wlan != NULL). */
1371 /* */
1372 /* define REJOIN */
rtw_joinbss_event_prehandle(struct adapter * adapter,u8 * pbuf)1373 void rtw_joinbss_event_prehandle(struct adapter *adapter, u8 *pbuf)
1374 {
1375 static u8 retry;
1376 u8 timer_cancelled;
1377 struct sta_info *ptarget_sta = NULL, *pcur_sta = NULL;
1378 struct sta_priv *pstapriv = &adapter->stapriv;
1379 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1380 struct wlan_network *pnetwork = (struct wlan_network *)pbuf;
1381 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
1382 struct wlan_network *pcur_wlan = NULL, *ptarget_wlan = NULL;
1383 unsigned int the_same_macaddr = false;
1384
1385 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("joinbss event call back received with res =%d\n", pnetwork->join_res));
1386
1387 rtw_get_encrypt_decrypt_from_registrypriv(adapter);
1388
1389
1390 if (pmlmepriv->assoc_ssid.SsidLength == 0) {
1391 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("@@@@@ joinbss event call back for Any SSid\n"));
1392 } else{
1393 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("@@@@@ rtw_joinbss_event_callback for SSid:%s\n", pmlmepriv->assoc_ssid.Ssid));
1394 }
1395
1396 the_same_macaddr = !memcmp(pnetwork->network.MacAddress, cur_network->network.MacAddress, ETH_ALEN);
1397
1398 pnetwork->network.Length = get_wlan_bssid_ex_sz(&pnetwork->network);
1399 if (pnetwork->network.Length > sizeof(struct wlan_bssid_ex)) {
1400 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n\n ***joinbss_evt_callback return a wrong bss ***\n\n"));
1401 return;
1402 }
1403
1404 spin_lock_bh(&pmlmepriv->lock);
1405
1406 pmlmepriv->LinkDetectInfo.TrafficTransitionCount = 0;
1407 pmlmepriv->LinkDetectInfo.LowPowerTransitionCount = 0;
1408
1409 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\n rtw_joinbss_event_callback !! spin_lock_irqsave\n"));
1410
1411 if (pnetwork->join_res > 0) {
1412 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1413 retry = 0;
1414 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
1415 /* s1. find ptarget_wlan */
1416 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1417 if (the_same_macaddr == true) {
1418 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1419 } else{
1420 pcur_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1421 if (pcur_wlan)
1422 pcur_wlan->fixed = false;
1423
1424 pcur_sta = rtw_get_stainfo(pstapriv, cur_network->network.MacAddress);
1425 if (pcur_sta)
1426 rtw_free_stainfo(adapter, pcur_sta);
1427
1428 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->network.MacAddress);
1429 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1430 if (ptarget_wlan)
1431 ptarget_wlan->fixed = true;
1432 }
1433 }
1434
1435 } else{
1436 ptarget_wlan = _rtw_find_same_network(&pmlmepriv->scanned_queue, pnetwork);
1437 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1438 if (ptarget_wlan)
1439 ptarget_wlan->fixed = true;
1440 }
1441 }
1442
1443 /* s2. update cur_network */
1444 if (ptarget_wlan) {
1445 rtw_joinbss_update_network(adapter, ptarget_wlan, pnetwork);
1446 } else{
1447 DBG_871X_LEVEL(_drv_always_, "Can't find ptarget_wlan when joinbss_event callback\n");
1448 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
1449 goto ignore_joinbss_callback;
1450 }
1451
1452
1453 /* s3. find ptarget_sta & update ptarget_sta after update cur_network only for station mode */
1454 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1455 ptarget_sta = rtw_joinbss_update_stainfo(adapter, pnetwork);
1456 if (ptarget_sta == NULL) {
1457 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't update stainfo when joinbss_event callback\n"));
1458 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
1459 goto ignore_joinbss_callback;
1460 }
1461 }
1462
1463 /* s4. indicate connect */
1464 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1465 pmlmepriv->cur_network_scanned = ptarget_wlan;
1466 rtw_indicate_connect(adapter);
1467 } else{
1468 /* adhoc mode will rtw_indicate_connect when rtw_stassoc_event_callback */
1469 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("adhoc mode, fw_state:%x", get_fwstate(pmlmepriv)));
1470 }
1471
1472
1473 /* s5. Cancel assoc_timer */
1474 _cancel_timer(&pmlmepriv->assoc_timer, &timer_cancelled);
1475
1476 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("Cancel assoc_timer\n"));
1477
1478 } else{
1479 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_joinbss_event_callback err: fw_state:%x", get_fwstate(pmlmepriv)));
1480 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
1481 goto ignore_joinbss_callback;
1482 }
1483
1484 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
1485
1486 } else if (pnetwork->join_res == -4) {
1487 rtw_reset_securitypriv(adapter);
1488 _set_timer(&pmlmepriv->assoc_timer, 1);
1489
1490 /* rtw_free_assoc_resources(adapter, 1); */
1491
1492 if ((check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) == true) {
1493 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("fail! clear _FW_UNDER_LINKING ^^^fw_state =%x\n", get_fwstate(pmlmepriv)));
1494 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1495 }
1496
1497 } else{/* if join_res < 0 (join fails), then try again */
1498
1499 #ifdef REJOIN
1500 res = _FAIL;
1501 if (retry < 2) {
1502 res = rtw_select_and_join_from_scanned_queue(pmlmepriv);
1503 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_select_and_join_from_scanned_queue again! res:%d\n", res));
1504 }
1505
1506 if (res == _SUCCESS) {
1507 /* extend time of assoc_timer */
1508 _set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
1509 retry++;
1510 } else if (res == 2) {/* there is no need to wait for join */
1511 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1512 rtw_indicate_connect(adapter);
1513 } else{
1514 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Set Assoc_Timer = 1; can't find match ssid in scanned_q\n"));
1515 #endif
1516
1517 _set_timer(&pmlmepriv->assoc_timer, 1);
1518 /* rtw_free_assoc_resources(adapter, 1); */
1519 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1520
1521 #ifdef REJOIN
1522 retry = 0;
1523 }
1524 #endif
1525 }
1526
1527 ignore_joinbss_callback:
1528
1529 spin_unlock_bh(&pmlmepriv->lock);
1530 }
1531
rtw_joinbss_event_callback(struct adapter * adapter,u8 * pbuf)1532 void rtw_joinbss_event_callback(struct adapter *adapter, u8 *pbuf)
1533 {
1534 struct wlan_network *pnetwork = (struct wlan_network *)pbuf;
1535
1536 mlmeext_joinbss_event_callback(adapter, pnetwork->join_res);
1537
1538 rtw_os_xmit_schedule(adapter);
1539 }
1540
1541 /* FOR STA, AP , AD-HOC mode */
rtw_sta_media_status_rpt(struct adapter * adapter,struct sta_info * psta,u32 mstatus)1542 void rtw_sta_media_status_rpt(struct adapter *adapter, struct sta_info *psta, u32 mstatus)
1543 {
1544 u16 media_status_rpt;
1545
1546 if (psta == NULL)
1547 return;
1548
1549 media_status_rpt = (u16)((psta->mac_id<<8)|mstatus); /* MACID|OPMODE:1 connect */
1550 rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status_rpt);
1551 }
1552
rtw_stassoc_event_callback(struct adapter * adapter,u8 * pbuf)1553 void rtw_stassoc_event_callback(struct adapter *adapter, u8 *pbuf)
1554 {
1555 struct sta_info *psta;
1556 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1557 struct stassoc_event *pstassoc = (struct stassoc_event *)pbuf;
1558 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
1559 struct wlan_network *ptarget_wlan = NULL;
1560
1561 if (rtw_access_ctrl(adapter, pstassoc->macaddr) == false)
1562 return;
1563
1564 if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
1565 psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1566 if (psta) {
1567 u8 *passoc_req = NULL;
1568 u32 assoc_req_len = 0;
1569
1570 rtw_sta_media_status_rpt(adapter, psta, 1);
1571
1572 #ifndef CONFIG_AUTO_AP_MODE
1573
1574 ap_sta_info_defer_update(adapter, psta);
1575
1576 /* report to upper layer */
1577 DBG_871X("indicate_sta_assoc_event to upper layer - hostapd\n");
1578 spin_lock_bh(&psta->lock);
1579 if (psta->passoc_req && psta->assoc_req_len > 0) {
1580 passoc_req = rtw_zmalloc(psta->assoc_req_len);
1581 if (passoc_req) {
1582 assoc_req_len = psta->assoc_req_len;
1583 memcpy(passoc_req, psta->passoc_req, assoc_req_len);
1584
1585 kfree(psta->passoc_req);
1586 psta->passoc_req = NULL;
1587 psta->assoc_req_len = 0;
1588 }
1589 }
1590 spin_unlock_bh(&psta->lock);
1591
1592 if (passoc_req && assoc_req_len > 0) {
1593 rtw_cfg80211_indicate_sta_assoc(adapter, passoc_req, assoc_req_len);
1594
1595 kfree(passoc_req);
1596 }
1597 #endif /* CONFIG_AUTO_AP_MODE */
1598 }
1599 return;
1600 }
1601
1602 /* for AD-HOC mode */
1603 psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1604 if (psta != NULL) {
1605 /* the sta have been in sta_info_queue => do nothing */
1606
1607 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Error: rtw_stassoc_event_callback: sta has been in sta_hash_queue\n"));
1608
1609 return; /* between drv has received this event before and fw have not yet to set key to CAM_ENTRY) */
1610 }
1611
1612 psta = rtw_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
1613 if (psta == NULL) {
1614 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't alloc sta_info when rtw_stassoc_event_callback\n"));
1615 return;
1616 }
1617
1618 /* to do : init sta_info variable */
1619 psta->qos_option = 0;
1620 psta->mac_id = (uint)pstassoc->cam_id;
1621 /* psta->aid = (uint)pstassoc->cam_id; */
1622 DBG_871X("%s\n", __func__);
1623 /* for ad-hoc mode */
1624 rtw_hal_set_odm_var(adapter, HAL_ODM_STA_INFO, psta, true);
1625
1626 rtw_sta_media_status_rpt(adapter, psta, 1);
1627
1628 if (adapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X)
1629 psta->dot118021XPrivacy = adapter->securitypriv.dot11PrivacyAlgrthm;
1630
1631
1632 psta->ieee8021x_blocked = false;
1633
1634 spin_lock_bh(&pmlmepriv->lock);
1635
1636 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true) ||
1637 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true)) {
1638 if (adapter->stapriv.asoc_sta_count == 2) {
1639 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1640 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1641 pmlmepriv->cur_network_scanned = ptarget_wlan;
1642 if (ptarget_wlan)
1643 ptarget_wlan->fixed = true;
1644 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
1645 /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
1646 rtw_indicate_connect(adapter);
1647 }
1648 }
1649
1650 spin_unlock_bh(&pmlmepriv->lock);
1651
1652
1653 mlmeext_sta_add_event_callback(adapter, psta);
1654 }
1655
rtw_stadel_event_callback(struct adapter * adapter,u8 * pbuf)1656 void rtw_stadel_event_callback(struct adapter *adapter, u8 *pbuf)
1657 {
1658 int mac_id = (-1);
1659 struct sta_info *psta;
1660 struct wlan_network *pwlan = NULL;
1661 struct wlan_bssid_ex *pdev_network = NULL;
1662 u8 *pibss = NULL;
1663 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1664 struct stadel_event *pstadel = (struct stadel_event *)pbuf;
1665 struct wlan_network *tgt_network = &(pmlmepriv->cur_network);
1666 struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
1667 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1668
1669 psta = rtw_get_stainfo(&adapter->stapriv, pstadel->macaddr);
1670 if (psta)
1671 mac_id = psta->mac_id;
1672 else
1673 mac_id = pstadel->mac_id;
1674
1675 DBG_871X("%s(mac_id =%d) =" MAC_FMT "\n", __func__, mac_id, MAC_ARG(pstadel->macaddr));
1676
1677 if (mac_id >= 0) {
1678 u16 media_status;
1679 media_status = (mac_id<<8)|0; /* MACID|OPMODE:0 means disconnect */
1680 /* for STA, AP, ADHOC mode, report disconnect stauts to FW */
1681 rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status);
1682 }
1683
1684 /* if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) */
1685 if ((pmlmeinfo->state&0x03) == WIFI_FW_AP_STATE)
1686 return;
1687
1688
1689 mlmeext_sta_del_event_callback(adapter);
1690
1691 spin_lock_bh(&pmlmepriv->lock);
1692
1693 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
1694 u16 reason = *((unsigned short *)(pstadel->rsvd));
1695 bool roam = false;
1696 struct wlan_network *roam_target = NULL;
1697
1698 if (adapter->registrypriv.wifi_spec == 1) {
1699 roam = false;
1700 } else if (reason == WLAN_REASON_EXPIRATION_CHK && rtw_chk_roam_flags(adapter, RTW_ROAM_ON_EXPIRED)) {
1701 roam = true;
1702 } else if (reason == WLAN_REASON_ACTIVE_ROAM && rtw_chk_roam_flags(adapter, RTW_ROAM_ACTIVE)) {
1703 roam = true;
1704 roam_target = pmlmepriv->roam_network;
1705 }
1706 #ifdef CONFIG_INTEL_WIDI
1707 else if (adapter->mlmepriv.widi_state == INTEL_WIDI_STATE_CONNECTED) {
1708 roam = true;
1709 }
1710 #endif /* CONFIG_INTEL_WIDI */
1711
1712 if (roam == true) {
1713 if (rtw_to_roam(adapter) > 0)
1714 rtw_dec_to_roam(adapter); /* this stadel_event is caused by roaming, decrease to_roam */
1715 else if (rtw_to_roam(adapter) == 0)
1716 rtw_set_to_roam(adapter, adapter->registrypriv.max_roaming_times);
1717 } else {
1718 rtw_set_to_roam(adapter, 0);
1719 }
1720
1721 rtw_free_uc_swdec_pending_queue(adapter);
1722
1723 rtw_free_assoc_resources(adapter, 1);
1724 rtw_indicate_disconnect(adapter);
1725
1726 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1727 /* remove the network entry in scanned_queue */
1728 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
1729 if (pwlan) {
1730 pwlan->fixed = false;
1731 rtw_free_network_nolock(adapter, pwlan);
1732 }
1733 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
1734
1735 #ifdef CONFIG_INTEL_WIDI
1736 if (!rtw_to_roam(adapter))
1737 process_intel_widi_disconnect(adapter, 1);
1738 #endif /* CONFIG_INTEL_WIDI */
1739
1740 _rtw_roaming(adapter, roam_target);
1741 }
1742
1743 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
1744 check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1745
1746 rtw_free_stainfo(adapter, psta);
1747
1748 if (adapter->stapriv.asoc_sta_count == 1) {/* a sta + bc/mc_stainfo (not Ibss_stainfo) */
1749 /* rtw_indicate_disconnect(adapter);removed@20091105 */
1750 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1751 /* free old ibss network */
1752 /* pwlan = rtw_find_network(&pmlmepriv->scanned_queue, pstadel->macaddr); */
1753 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
1754 if (pwlan) {
1755 pwlan->fixed = false;
1756 rtw_free_network_nolock(adapter, pwlan);
1757 }
1758 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
1759 /* re-create ibss */
1760 pdev_network = &(adapter->registrypriv.dev_network);
1761 pibss = adapter->registrypriv.dev_network.MacAddress;
1762
1763 memcpy(pdev_network, &tgt_network->network, get_wlan_bssid_ex_sz(&tgt_network->network));
1764
1765 memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
1766
1767 rtw_update_registrypriv_dev_network(adapter);
1768
1769 rtw_generate_random_ibss(pibss);
1770
1771 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1772 set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
1773 _clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
1774 }
1775
1776 if (rtw_createbss_cmd(adapter) != _SUCCESS) {
1777
1778 RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_err_, ("***Error =>stadel_event_callback: rtw_createbss_cmd status FAIL***\n "));
1779
1780 }
1781
1782
1783 }
1784
1785 }
1786
1787 spin_unlock_bh(&pmlmepriv->lock);
1788 }
1789
rtw_cpwm_event_callback(struct adapter * padapter,u8 * pbuf)1790 void rtw_cpwm_event_callback(struct adapter *padapter, u8 *pbuf)
1791 {
1792 struct reportpwrstate_parm *preportpwrstate;
1793
1794 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_cpwm_event_callback !!!\n"));
1795 preportpwrstate = (struct reportpwrstate_parm *)pbuf;
1796 preportpwrstate->state |= (u8)(adapter_to_pwrctl(padapter)->cpwm_tog + 0x80);
1797 cpwm_int_hdl(padapter, preportpwrstate);
1798 }
1799
1800
rtw_wmm_event_callback(struct adapter * padapter,u8 * pbuf)1801 void rtw_wmm_event_callback(struct adapter *padapter, u8 *pbuf)
1802 {
1803 WMMOnAssocRsp(padapter);
1804 }
1805
1806 /*
1807 * _rtw_join_timeout_handler - Timeout/failure handler for CMD JoinBss
1808 * @adapter: pointer to struct adapter structure
1809 */
_rtw_join_timeout_handler(struct timer_list * t)1810 void _rtw_join_timeout_handler(struct timer_list *t)
1811 {
1812 struct adapter *adapter = from_timer(adapter, t,
1813 mlmepriv.assoc_timer);
1814 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1815
1816 DBG_871X("%s, fw_state =%x\n", __func__, get_fwstate(pmlmepriv));
1817
1818 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1819 return;
1820
1821 spin_lock_bh(&pmlmepriv->lock);
1822
1823 if (rtw_to_roam(adapter) > 0) { /* join timeout caused by roaming */
1824 while (1) {
1825 rtw_dec_to_roam(adapter);
1826 if (rtw_to_roam(adapter) != 0) { /* try another */
1827 int do_join_r;
1828 DBG_871X("%s try another roaming\n", __func__);
1829 do_join_r = rtw_do_join(adapter);
1830 if (_SUCCESS != do_join_r) {
1831 DBG_871X("%s roaming do_join return %d\n", __func__, do_join_r);
1832 continue;
1833 }
1834 break;
1835 } else {
1836 #ifdef CONFIG_INTEL_WIDI
1837 if (adapter->mlmepriv.widi_state == INTEL_WIDI_STATE_ROAMING) {
1838 memset(pmlmepriv->sa_ext, 0x00, L2SDTA_SERVICE_VE_LEN);
1839 intel_widi_wk_cmd(adapter, INTEL_WIDI_LISTEN_WK, NULL, 0);
1840 DBG_871X("change to widi listen\n");
1841 }
1842 #endif /* CONFIG_INTEL_WIDI */
1843 DBG_871X("%s We've try roaming but fail\n", __func__);
1844 rtw_indicate_disconnect(adapter);
1845 break;
1846 }
1847 }
1848
1849 } else{
1850 rtw_indicate_disconnect(adapter);
1851 free_scanqueue(pmlmepriv);/* */
1852
1853 /* indicate disconnect for the case that join_timeout and check_fwstate != FW_LINKED */
1854 rtw_cfg80211_indicate_disconnect(adapter);
1855
1856 }
1857
1858 spin_unlock_bh(&pmlmepriv->lock);
1859 }
1860
1861 /*
1862 * rtw_scan_timeout_handler - Timeout/Failure handler for CMD SiteSurvey
1863 * @adapter: pointer to struct adapter structure
1864 */
rtw_scan_timeout_handler(struct timer_list * t)1865 void rtw_scan_timeout_handler(struct timer_list *t)
1866 {
1867 struct adapter *adapter = from_timer(adapter, t,
1868 mlmepriv.scan_to_timer);
1869 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1870
1871 DBG_871X(FUNC_ADPT_FMT" fw_state =%x\n", FUNC_ADPT_ARG(adapter), get_fwstate(pmlmepriv));
1872
1873 spin_lock_bh(&pmlmepriv->lock);
1874
1875 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
1876
1877 spin_unlock_bh(&pmlmepriv->lock);
1878
1879 rtw_indicate_scan_done(adapter, true);
1880 }
1881
rtw_mlme_reset_auto_scan_int(struct adapter * adapter)1882 void rtw_mlme_reset_auto_scan_int(struct adapter *adapter)
1883 {
1884 struct mlme_priv *mlme = &adapter->mlmepriv;
1885 struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
1886 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1887
1888 if (pmlmeinfo->VHT_enable) /* disable auto scan when connect to 11AC AP */
1889 mlme->auto_scan_int_ms = 0;
1890 else if (adapter->registrypriv.wifi_spec && is_client_associated_to_ap(adapter) == true)
1891 mlme->auto_scan_int_ms = 60*1000;
1892 else if (rtw_chk_roam_flags(adapter, RTW_ROAM_ACTIVE)) {
1893 if (check_fwstate(mlme, WIFI_STATION_STATE) && check_fwstate(mlme, _FW_LINKED))
1894 mlme->auto_scan_int_ms = mlme->roam_scan_int_ms;
1895 } else
1896 mlme->auto_scan_int_ms = 0; /* disabled */
1897
1898 return;
1899 }
1900
rtw_auto_scan_handler(struct adapter * padapter)1901 static void rtw_auto_scan_handler(struct adapter *padapter)
1902 {
1903 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1904
1905 rtw_mlme_reset_auto_scan_int(padapter);
1906
1907 if (pmlmepriv->auto_scan_int_ms != 0
1908 && jiffies_to_msecs(jiffies - pmlmepriv->scan_start_time) > pmlmepriv->auto_scan_int_ms) {
1909
1910 if (!padapter->registrypriv.wifi_spec) {
1911 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY|_FW_UNDER_LINKING) == true) {
1912 DBG_871X(FUNC_ADPT_FMT" _FW_UNDER_SURVEY|_FW_UNDER_LINKING\n", FUNC_ADPT_ARG(padapter));
1913 goto exit;
1914 }
1915
1916 if (pmlmepriv->LinkDetectInfo.bBusyTraffic == true) {
1917 DBG_871X(FUNC_ADPT_FMT" exit BusyTraffic\n", FUNC_ADPT_ARG(padapter));
1918 goto exit;
1919 }
1920 }
1921
1922 DBG_871X(FUNC_ADPT_FMT"\n", FUNC_ADPT_ARG(padapter));
1923
1924 rtw_set_802_11_bssid_list_scan(padapter, NULL, 0);
1925 }
1926
1927 exit:
1928 return;
1929 }
1930
rtw_dynamic_check_timer_handler(struct adapter * adapter)1931 void rtw_dynamic_check_timer_handler(struct adapter *adapter)
1932 {
1933 if (!adapter)
1934 return;
1935
1936 if (adapter->hw_init_completed == false)
1937 return;
1938
1939 if ((adapter->bDriverStopped == true) || (adapter->bSurpriseRemoved == true))
1940 return;
1941
1942 if (adapter->net_closed == true)
1943 return;
1944
1945 if (is_primary_adapter(adapter))
1946 DBG_871X("IsBtDisabled =%d, IsBtControlLps =%d\n", rtw_btcoex_IsBtDisabled(adapter), rtw_btcoex_IsBtControlLps(adapter));
1947
1948 if ((adapter_to_pwrctl(adapter)->bFwCurrentInPSMode == true)
1949 && (rtw_btcoex_IsBtControlLps(adapter) == false)
1950 ) {
1951 u8 bEnterPS;
1952
1953 linked_status_chk(adapter);
1954
1955 bEnterPS = traffic_status_watchdog(adapter, 1);
1956 if (bEnterPS) {
1957 /* rtw_lps_ctrl_wk_cmd(adapter, LPS_CTRL_ENTER, 1); */
1958 rtw_hal_dm_watchdog_in_lps(adapter);
1959 } else{
1960 /* call rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_LEAVE, 1) in traffic_status_watchdog() */
1961 }
1962
1963 } else{
1964 if (is_primary_adapter(adapter)) {
1965 rtw_dynamic_chk_wk_cmd(adapter);
1966 }
1967 }
1968
1969 /* auto site survey */
1970 rtw_auto_scan_handler(adapter);
1971 }
1972
1973
rtw_is_scan_deny(struct adapter * adapter)1974 inline bool rtw_is_scan_deny(struct adapter *adapter)
1975 {
1976 struct mlme_priv *mlmepriv = &adapter->mlmepriv;
1977 return (atomic_read(&mlmepriv->set_scan_deny) != 0) ? true : false;
1978 }
1979
rtw_clear_scan_deny(struct adapter * adapter)1980 inline void rtw_clear_scan_deny(struct adapter *adapter)
1981 {
1982 struct mlme_priv *mlmepriv = &adapter->mlmepriv;
1983 atomic_set(&mlmepriv->set_scan_deny, 0);
1984
1985 DBG_871X(FUNC_ADPT_FMT"\n", FUNC_ADPT_ARG(adapter));
1986 }
1987
rtw_set_scan_deny_timer_hdl(struct adapter * adapter)1988 void rtw_set_scan_deny_timer_hdl(struct adapter *adapter)
1989 {
1990 rtw_clear_scan_deny(adapter);
1991 }
1992
rtw_set_scan_deny(struct adapter * adapter,u32 ms)1993 void rtw_set_scan_deny(struct adapter *adapter, u32 ms)
1994 {
1995 struct mlme_priv *mlmepriv = &adapter->mlmepriv;
1996
1997 DBG_871X(FUNC_ADPT_FMT"\n", FUNC_ADPT_ARG(adapter));
1998 atomic_set(&mlmepriv->set_scan_deny, 1);
1999 _set_timer(&mlmepriv->set_scan_deny_timer, ms);
2000 }
2001
2002 /*
2003 * Select a new roaming candidate from the original @param candidate and @param competitor
2004 * @return true: candidate is updated
2005 * @return false: candidate is not updated
2006 */
rtw_check_roaming_candidate(struct mlme_priv * mlme,struct wlan_network ** candidate,struct wlan_network * competitor)2007 static int rtw_check_roaming_candidate(struct mlme_priv *mlme
2008 , struct wlan_network **candidate, struct wlan_network *competitor)
2009 {
2010 int updated = false;
2011 struct adapter *adapter = container_of(mlme, struct adapter, mlmepriv);
2012
2013 if (is_same_ess(&competitor->network, &mlme->cur_network.network) == false)
2014 goto exit;
2015
2016 if (rtw_is_desired_network(adapter, competitor) == false)
2017 goto exit;
2018
2019 DBG_871X("roam candidate:%s %s("MAC_FMT", ch%3u) rssi:%d, age:%5d\n",
2020 (competitor == mlme->cur_network_scanned)?"*":" ",
2021 competitor->network.Ssid.Ssid,
2022 MAC_ARG(competitor->network.MacAddress),
2023 competitor->network.Configuration.DSConfig,
2024 (int)competitor->network.Rssi,
2025 jiffies_to_msecs(jiffies - competitor->last_scanned)
2026 );
2027
2028 /* got specific addr to roam */
2029 if (!is_zero_mac_addr(mlme->roam_tgt_addr)) {
2030 if (!memcmp(mlme->roam_tgt_addr, competitor->network.MacAddress, ETH_ALEN))
2031 goto update;
2032 else
2033 goto exit;
2034 }
2035 if (jiffies_to_msecs(jiffies - competitor->last_scanned) >= mlme->roam_scanr_exp_ms)
2036 goto exit;
2037
2038 if (competitor->network.Rssi - mlme->cur_network_scanned->network.Rssi < mlme->roam_rssi_diff_th)
2039 goto exit;
2040
2041 if (*candidate != NULL && (*candidate)->network.Rssi >= competitor->network.Rssi)
2042 goto exit;
2043
2044 update:
2045 *candidate = competitor;
2046 updated = true;
2047
2048 exit:
2049 return updated;
2050 }
2051
rtw_select_roaming_candidate(struct mlme_priv * mlme)2052 int rtw_select_roaming_candidate(struct mlme_priv *mlme)
2053 {
2054 int ret = _FAIL;
2055 struct list_head *phead;
2056 struct adapter *adapter;
2057 struct __queue *queue = &(mlme->scanned_queue);
2058 struct wlan_network *pnetwork = NULL;
2059 struct wlan_network *candidate = NULL;
2060
2061 if (mlme->cur_network_scanned == NULL) {
2062 rtw_warn_on(1);
2063 return ret;
2064 }
2065
2066 spin_lock_bh(&(mlme->scanned_queue.lock));
2067 phead = get_list_head(queue);
2068 adapter = (struct adapter *)mlme->nic_hdl;
2069
2070 mlme->pscanned = get_next(phead);
2071
2072 while (phead != mlme->pscanned) {
2073
2074 pnetwork = LIST_CONTAINOR(mlme->pscanned, struct wlan_network, list);
2075 if (pnetwork == NULL) {
2076 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s return _FAIL:(pnetwork == NULL)\n", __func__));
2077 ret = _FAIL;
2078 goto exit;
2079 }
2080
2081 mlme->pscanned = get_next(mlme->pscanned);
2082
2083 DBG_871X("%s("MAC_FMT", ch%u) rssi:%d\n"
2084 , pnetwork->network.Ssid.Ssid
2085 , MAC_ARG(pnetwork->network.MacAddress)
2086 , pnetwork->network.Configuration.DSConfig
2087 , (int)pnetwork->network.Rssi);
2088
2089 rtw_check_roaming_candidate(mlme, &candidate, pnetwork);
2090
2091 }
2092
2093 if (candidate == NULL) {
2094 DBG_871X("%s: return _FAIL(candidate == NULL)\n", __func__);
2095 ret = _FAIL;
2096 goto exit;
2097 } else {
2098 DBG_871X("%s: candidate: %s("MAC_FMT", ch:%u)\n", __func__,
2099 candidate->network.Ssid.Ssid, MAC_ARG(candidate->network.MacAddress),
2100 candidate->network.Configuration.DSConfig);
2101
2102 mlme->roam_network = candidate;
2103
2104 if (!memcmp(candidate->network.MacAddress, mlme->roam_tgt_addr, ETH_ALEN))
2105 eth_zero_addr(mlme->roam_tgt_addr);
2106 }
2107
2108 ret = _SUCCESS;
2109 exit:
2110 spin_unlock_bh(&(mlme->scanned_queue.lock));
2111
2112 return ret;
2113 }
2114
2115 /*
2116 * Select a new join candidate from the original @param candidate and @param competitor
2117 * @return true: candidate is updated
2118 * @return false: candidate is not updated
2119 */
rtw_check_join_candidate(struct mlme_priv * mlme,struct wlan_network ** candidate,struct wlan_network * competitor)2120 static int rtw_check_join_candidate(struct mlme_priv *mlme
2121 , struct wlan_network **candidate, struct wlan_network *competitor)
2122 {
2123 int updated = false;
2124 struct adapter *adapter = container_of(mlme, struct adapter, mlmepriv);
2125
2126
2127 /* check bssid, if needed */
2128 if (mlme->assoc_by_bssid == true) {
2129 if (memcmp(competitor->network.MacAddress, mlme->assoc_bssid, ETH_ALEN))
2130 goto exit;
2131 }
2132
2133 /* check ssid, if needed */
2134 if (mlme->assoc_ssid.Ssid[0] && mlme->assoc_ssid.SsidLength) {
2135 if (competitor->network.Ssid.SsidLength != mlme->assoc_ssid.SsidLength
2136 || memcmp(competitor->network.Ssid.Ssid, mlme->assoc_ssid.Ssid, mlme->assoc_ssid.SsidLength)
2137 )
2138 goto exit;
2139 }
2140
2141 if (rtw_is_desired_network(adapter, competitor) == false)
2142 goto exit;
2143
2144 if (rtw_to_roam(adapter) > 0) {
2145 if (jiffies_to_msecs(jiffies - competitor->last_scanned) >= mlme->roam_scanr_exp_ms
2146 || is_same_ess(&competitor->network, &mlme->cur_network.network) == false
2147 )
2148 goto exit;
2149 }
2150
2151 if (*candidate == NULL || (*candidate)->network.Rssi < competitor->network.Rssi) {
2152 *candidate = competitor;
2153 updated = true;
2154 }
2155
2156 if (updated) {
2157 DBG_871X("[by_bssid:%u][assoc_ssid:%s]"
2158 "[to_roam:%u] "
2159 "new candidate: %s("MAC_FMT", ch%u) rssi:%d\n",
2160 mlme->assoc_by_bssid,
2161 mlme->assoc_ssid.Ssid,
2162 rtw_to_roam(adapter),
2163 (*candidate)->network.Ssid.Ssid,
2164 MAC_ARG((*candidate)->network.MacAddress),
2165 (*candidate)->network.Configuration.DSConfig,
2166 (int)(*candidate)->network.Rssi
2167 );
2168 }
2169
2170 exit:
2171 return updated;
2172 }
2173
2174 /*
2175 Calling context:
2176 The caller of the sub-routine will be in critical section...
2177
2178 The caller must hold the following spinlock
2179
2180 pmlmepriv->lock
2181
2182
2183 */
2184
rtw_select_and_join_from_scanned_queue(struct mlme_priv * pmlmepriv)2185 int rtw_select_and_join_from_scanned_queue(struct mlme_priv *pmlmepriv)
2186 {
2187 int ret;
2188 struct list_head *phead;
2189 struct adapter *adapter;
2190 struct __queue *queue = &(pmlmepriv->scanned_queue);
2191 struct wlan_network *pnetwork = NULL;
2192 struct wlan_network *candidate = NULL;
2193
2194 adapter = (struct adapter *)pmlmepriv->nic_hdl;
2195
2196 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
2197
2198 if (pmlmepriv->roam_network) {
2199 candidate = pmlmepriv->roam_network;
2200 pmlmepriv->roam_network = NULL;
2201 goto candidate_exist;
2202 }
2203
2204 phead = get_list_head(queue);
2205 pmlmepriv->pscanned = get_next(phead);
2206
2207 while (phead != pmlmepriv->pscanned) {
2208
2209 pnetwork = LIST_CONTAINOR(pmlmepriv->pscanned, struct wlan_network, list);
2210 if (pnetwork == NULL) {
2211 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s return _FAIL:(pnetwork == NULL)\n", __func__));
2212 ret = _FAIL;
2213 goto exit;
2214 }
2215
2216 pmlmepriv->pscanned = get_next(pmlmepriv->pscanned);
2217
2218 DBG_871X("%s("MAC_FMT", ch%u) rssi:%d\n"
2219 , pnetwork->network.Ssid.Ssid
2220 , MAC_ARG(pnetwork->network.MacAddress)
2221 , pnetwork->network.Configuration.DSConfig
2222 , (int)pnetwork->network.Rssi);
2223
2224 rtw_check_join_candidate(pmlmepriv, &candidate, pnetwork);
2225
2226 }
2227
2228 if (candidate == NULL) {
2229 DBG_871X("%s: return _FAIL(candidate == NULL)\n", __func__);
2230 #ifdef CONFIG_WOWLAN
2231 _clr_fwstate_(pmlmepriv, _FW_LINKED|_FW_UNDER_LINKING);
2232 #endif
2233 ret = _FAIL;
2234 goto exit;
2235 } else {
2236 DBG_871X("%s: candidate: %s("MAC_FMT", ch:%u)\n", __func__,
2237 candidate->network.Ssid.Ssid, MAC_ARG(candidate->network.MacAddress),
2238 candidate->network.Configuration.DSConfig);
2239 goto candidate_exist;
2240 }
2241
2242 candidate_exist:
2243
2244 /* check for situation of _FW_LINKED */
2245 if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
2246 DBG_871X("%s: _FW_LINKED while ask_for_joinbss!!!\n", __func__);
2247
2248 rtw_disassoc_cmd(adapter, 0, true);
2249 rtw_indicate_disconnect(adapter);
2250 rtw_free_assoc_resources(adapter, 0);
2251 }
2252
2253 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
2254 ret = rtw_joinbss_cmd(adapter, candidate);
2255
2256 exit:
2257 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
2258 return ret;
2259 }
2260
rtw_set_auth(struct adapter * adapter,struct security_priv * psecuritypriv)2261 sint rtw_set_auth(struct adapter *adapter, struct security_priv *psecuritypriv)
2262 {
2263 struct cmd_obj *pcmd;
2264 struct setauth_parm *psetauthparm;
2265 struct cmd_priv *pcmdpriv = &(adapter->cmdpriv);
2266 sint res = _SUCCESS;
2267
2268 pcmd = rtw_zmalloc(sizeof(struct cmd_obj));
2269 if (pcmd == NULL) {
2270 res = _FAIL; /* try again */
2271 goto exit;
2272 }
2273
2274 psetauthparm = rtw_zmalloc(sizeof(struct setauth_parm));
2275 if (psetauthparm == NULL) {
2276 kfree((unsigned char *)pcmd);
2277 res = _FAIL;
2278 goto exit;
2279 }
2280
2281 memset(psetauthparm, 0, sizeof(struct setauth_parm));
2282 psetauthparm->mode = (unsigned char)psecuritypriv->dot11AuthAlgrthm;
2283
2284 pcmd->cmdcode = _SetAuth_CMD_;
2285 pcmd->parmbuf = (unsigned char *)psetauthparm;
2286 pcmd->cmdsz = (sizeof(struct setauth_parm));
2287 pcmd->rsp = NULL;
2288 pcmd->rspsz = 0;
2289
2290
2291 INIT_LIST_HEAD(&pcmd->list);
2292
2293 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("after enqueue set_auth_cmd, auth_mode =%x\n", psecuritypriv->dot11AuthAlgrthm));
2294
2295 res = rtw_enqueue_cmd(pcmdpriv, pcmd);
2296
2297 exit:
2298 return res;
2299 }
2300
rtw_set_key(struct adapter * adapter,struct security_priv * psecuritypriv,sint keyid,u8 set_tx,bool enqueue)2301 sint rtw_set_key(struct adapter *adapter, struct security_priv *psecuritypriv, sint keyid, u8 set_tx, bool enqueue)
2302 {
2303 u8 keylen;
2304 struct cmd_obj *pcmd;
2305 struct setkey_parm *psetkeyparm;
2306 struct cmd_priv *pcmdpriv = &(adapter->cmdpriv);
2307 sint res = _SUCCESS;
2308
2309 psetkeyparm = rtw_zmalloc(sizeof(struct setkey_parm));
2310 if (psetkeyparm == NULL) {
2311 res = _FAIL;
2312 goto exit;
2313 }
2314 memset(psetkeyparm, 0, sizeof(struct setkey_parm));
2315
2316 if (psecuritypriv->dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
2317 psetkeyparm->algorithm = (unsigned char)psecuritypriv->dot118021XGrpPrivacy;
2318 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n rtw_set_key: psetkeyparm->algorithm =(unsigned char)psecuritypriv->dot118021XGrpPrivacy =%d\n", psetkeyparm->algorithm));
2319 } else {
2320 psetkeyparm->algorithm = (u8)psecuritypriv->dot11PrivacyAlgrthm;
2321 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n rtw_set_key: psetkeyparm->algorithm =(u8)psecuritypriv->dot11PrivacyAlgrthm =%d\n", psetkeyparm->algorithm));
2322
2323 }
2324 psetkeyparm->keyid = (u8)keyid;/* 0~3 */
2325 psetkeyparm->set_tx = set_tx;
2326 if (is_wep_enc(psetkeyparm->algorithm))
2327 adapter->securitypriv.key_mask |= BIT(psetkeyparm->keyid);
2328
2329 DBG_871X("==> rtw_set_key algorithm(%x), keyid(%x), key_mask(%x)\n", psetkeyparm->algorithm, psetkeyparm->keyid, adapter->securitypriv.key_mask);
2330 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n rtw_set_key: psetkeyparm->algorithm =%d psetkeyparm->keyid =(u8)keyid =%d\n", psetkeyparm->algorithm, keyid));
2331
2332 switch (psetkeyparm->algorithm) {
2333
2334 case _WEP40_:
2335 keylen = 5;
2336 memcpy(&(psetkeyparm->key[0]), &(psecuritypriv->dot11DefKey[keyid].skey[0]), keylen);
2337 break;
2338 case _WEP104_:
2339 keylen = 13;
2340 memcpy(&(psetkeyparm->key[0]), &(psecuritypriv->dot11DefKey[keyid].skey[0]), keylen);
2341 break;
2342 case _TKIP_:
2343 keylen = 16;
2344 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
2345 psetkeyparm->grpkey = 1;
2346 break;
2347 case _AES_:
2348 keylen = 16;
2349 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
2350 psetkeyparm->grpkey = 1;
2351 break;
2352 default:
2353 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n rtw_set_key:psecuritypriv->dot11PrivacyAlgrthm = %x (must be 1 or 2 or 4 or 5)\n", psecuritypriv->dot11PrivacyAlgrthm));
2354 res = _FAIL;
2355 kfree((unsigned char *)psetkeyparm);
2356 goto exit;
2357 }
2358
2359
2360 if (enqueue) {
2361 pcmd = rtw_zmalloc(sizeof(struct cmd_obj));
2362 if (pcmd == NULL) {
2363 kfree((unsigned char *)psetkeyparm);
2364 res = _FAIL; /* try again */
2365 goto exit;
2366 }
2367
2368 pcmd->cmdcode = _SetKey_CMD_;
2369 pcmd->parmbuf = (u8 *)psetkeyparm;
2370 pcmd->cmdsz = (sizeof(struct setkey_parm));
2371 pcmd->rsp = NULL;
2372 pcmd->rspsz = 0;
2373
2374 INIT_LIST_HEAD(&pcmd->list);
2375
2376 /* sema_init(&(pcmd->cmd_sem), 0); */
2377
2378 res = rtw_enqueue_cmd(pcmdpriv, pcmd);
2379 } else{
2380 setkey_hdl(adapter, (u8 *)psetkeyparm);
2381 kfree((u8 *) psetkeyparm);
2382 }
2383 exit:
2384 return res;
2385 }
2386
2387 /* adjust IEs for rtw_joinbss_cmd in WMM */
rtw_restruct_wmm_ie(struct adapter * adapter,u8 * in_ie,u8 * out_ie,uint in_len,uint initial_out_len)2388 int rtw_restruct_wmm_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len, uint initial_out_len)
2389 {
2390 unsigned int ielength = 0;
2391 unsigned int i, j;
2392
2393 i = 12; /* after the fixed IE */
2394 while (i < in_len) {
2395 ielength = initial_out_len;
2396
2397 if (in_ie[i] == 0xDD && in_ie[i+2] == 0x00 && in_ie[i+3] == 0x50 && in_ie[i+4] == 0xF2 && in_ie[i+5] == 0x02 && i+5 < in_len) { /* WMM element ID and OUI */
2398 for (j = i; j < i + 9; j++) {
2399 out_ie[ielength] = in_ie[j];
2400 ielength++;
2401 }
2402 out_ie[initial_out_len + 1] = 0x07;
2403 out_ie[initial_out_len + 6] = 0x00;
2404 out_ie[initial_out_len + 8] = 0x00;
2405
2406 break;
2407 }
2408
2409 i += (in_ie[i+1]+2); /* to the next IE element */
2410 }
2411
2412 return ielength;
2413
2414 }
2415
2416
2417 /* */
2418 /* Ported from 8185: IsInPreAuthKeyList(). (Renamed from SecIsInPreAuthKeyList(), 2006-10-13.) */
2419 /* Added by Annie, 2006-05-07. */
2420 /* */
2421 /* Search by BSSID, */
2422 /* Return Value: */
2423 /* -1 :if there is no pre-auth key in the table */
2424 /* >= 0 :if there is pre-auth key, and return the entry id */
2425 /* */
2426 /* */
2427
SecIsInPMKIDList(struct adapter * Adapter,u8 * bssid)2428 static int SecIsInPMKIDList(struct adapter *Adapter, u8 *bssid)
2429 {
2430 struct security_priv *psecuritypriv = &Adapter->securitypriv;
2431 int i = 0;
2432
2433 do {
2434 if ((psecuritypriv->PMKIDList[i].bUsed) &&
2435 (!memcmp(psecuritypriv->PMKIDList[i].Bssid, bssid, ETH_ALEN))) {
2436 break;
2437 } else{
2438 i++;
2439 /* continue; */
2440 }
2441
2442 } while (i < NUM_PMKID_CACHE);
2443
2444 if (i == NUM_PMKID_CACHE) {
2445 i = -1;/* Could not find. */
2446 } else {
2447 /* There is one Pre-Authentication Key for the specific BSSID. */
2448 }
2449
2450 return i;
2451
2452 }
2453
2454 /* */
2455 /* Check the RSN IE length */
2456 /* If the RSN IE length <= 20, the RSN IE didn't include the PMKID information */
2457 /* 0-11th element in the array are the fixed IE */
2458 /* 12th element in the array is the IE */
2459 /* 13th element in the array is the IE length */
2460 /* */
2461
rtw_append_pmkid(struct adapter * Adapter,int iEntry,u8 * ie,uint ie_len)2462 static int rtw_append_pmkid(struct adapter *Adapter, int iEntry, u8 *ie, uint ie_len)
2463 {
2464 struct security_priv *psecuritypriv = &Adapter->securitypriv;
2465
2466 if (ie[13] <= 20) {
2467 /* The RSN IE didn't include the PMK ID, append the PMK information */
2468 ie[ie_len] = 1;
2469 ie_len++;
2470 ie[ie_len] = 0; /* PMKID count = 0x0100 */
2471 ie_len++;
2472 memcpy(&ie[ie_len], &psecuritypriv->PMKIDList[iEntry].PMKID, 16);
2473
2474 ie_len += 16;
2475 ie[13] += 18;/* PMKID length = 2+16 */
2476
2477 }
2478 return ie_len;
2479 }
2480
rtw_restruct_sec_ie(struct adapter * adapter,u8 * in_ie,u8 * out_ie,uint in_len)2481 sint rtw_restruct_sec_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len)
2482 {
2483 u8 authmode = 0x0;
2484 uint ielength;
2485 int iEntry;
2486
2487 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
2488 struct security_priv *psecuritypriv = &adapter->securitypriv;
2489 uint ndisauthmode = psecuritypriv->ndisauthtype;
2490
2491 RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_,
2492 ("+rtw_restruct_sec_ie: ndisauthmode =%d\n", ndisauthmode));
2493
2494 /* copy fixed ie only */
2495 memcpy(out_ie, in_ie, 12);
2496 ielength = 12;
2497 if ((ndisauthmode == Ndis802_11AuthModeWPA) || (ndisauthmode == Ndis802_11AuthModeWPAPSK))
2498 authmode = _WPA_IE_ID_;
2499 if ((ndisauthmode == Ndis802_11AuthModeWPA2) || (ndisauthmode == Ndis802_11AuthModeWPA2PSK))
2500 authmode = _WPA2_IE_ID_;
2501
2502 if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
2503 memcpy(out_ie+ielength, psecuritypriv->wps_ie, psecuritypriv->wps_ie_len);
2504
2505 ielength += psecuritypriv->wps_ie_len;
2506 } else if ((authmode == _WPA_IE_ID_) || (authmode == _WPA2_IE_ID_)) {
2507 /* copy RSN or SSN */
2508 memcpy(&out_ie[ielength], &psecuritypriv->supplicant_ie[0], psecuritypriv->supplicant_ie[1]+2);
2509 /* debug for CONFIG_IEEE80211W
2510 {
2511 int jj;
2512 printk("supplicant_ie_length =%d &&&&&&&&&&&&&&&&&&&\n", psecuritypriv->supplicant_ie[1]+2);
2513 for (jj = 0; jj < psecuritypriv->supplicant_ie[1]+2; jj++)
2514 printk(" %02x ", psecuritypriv->supplicant_ie[jj]);
2515 printk("\n");
2516 }*/
2517 ielength += psecuritypriv->supplicant_ie[1]+2;
2518 rtw_report_sec_ie(adapter, authmode, psecuritypriv->supplicant_ie);
2519 }
2520
2521 iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
2522 if (iEntry < 0) {
2523 return ielength;
2524 } else{
2525 if (authmode == _WPA2_IE_ID_)
2526 ielength = rtw_append_pmkid(adapter, iEntry, out_ie, ielength);
2527 }
2528 return ielength;
2529 }
2530
rtw_init_registrypriv_dev_network(struct adapter * adapter)2531 void rtw_init_registrypriv_dev_network(struct adapter *adapter)
2532 {
2533 struct registry_priv *pregistrypriv = &adapter->registrypriv;
2534 struct eeprom_priv *peepriv = &adapter->eeprompriv;
2535 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
2536 u8 *myhwaddr = myid(peepriv);
2537
2538 memcpy(pdev_network->MacAddress, myhwaddr, ETH_ALEN);
2539
2540 memcpy(&pdev_network->Ssid, &pregistrypriv->ssid, sizeof(struct ndis_802_11_ssid));
2541
2542 pdev_network->Configuration.Length = sizeof(struct ndis_802_11_conf);
2543 pdev_network->Configuration.BeaconPeriod = 100;
2544 pdev_network->Configuration.FHConfig.Length = 0;
2545 pdev_network->Configuration.FHConfig.HopPattern = 0;
2546 pdev_network->Configuration.FHConfig.HopSet = 0;
2547 pdev_network->Configuration.FHConfig.DwellTime = 0;
2548 }
2549
rtw_update_registrypriv_dev_network(struct adapter * adapter)2550 void rtw_update_registrypriv_dev_network(struct adapter *adapter)
2551 {
2552 int sz = 0;
2553 struct registry_priv *pregistrypriv = &adapter->registrypriv;
2554 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
2555 struct security_priv *psecuritypriv = &adapter->securitypriv;
2556 struct wlan_network *cur_network = &adapter->mlmepriv.cur_network;
2557 /* struct xmit_priv *pxmitpriv = &adapter->xmitpriv; */
2558
2559 pdev_network->Privacy = (psecuritypriv->dot11PrivacyAlgrthm > 0 ? 1 : 0) ; /* adhoc no 802.1x */
2560
2561 pdev_network->Rssi = 0;
2562
2563 switch (pregistrypriv->wireless_mode) {
2564 case WIRELESS_11B:
2565 pdev_network->NetworkTypeInUse = (Ndis802_11DS);
2566 break;
2567 case WIRELESS_11G:
2568 case WIRELESS_11BG:
2569 case WIRELESS_11_24N:
2570 case WIRELESS_11G_24N:
2571 case WIRELESS_11BG_24N:
2572 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM24);
2573 break;
2574 case WIRELESS_11A:
2575 case WIRELESS_11A_5N:
2576 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM5);
2577 break;
2578 case WIRELESS_11ABGN:
2579 if (pregistrypriv->channel > 14)
2580 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM5);
2581 else
2582 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM24);
2583 break;
2584 default:
2585 /* TODO */
2586 break;
2587 }
2588
2589 pdev_network->Configuration.DSConfig = (pregistrypriv->channel);
2590 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("pregistrypriv->channel =%d, pdev_network->Configuration.DSConfig = 0x%x\n", pregistrypriv->channel, pdev_network->Configuration.DSConfig));
2591
2592 if (cur_network->network.InfrastructureMode == Ndis802_11IBSS)
2593 pdev_network->Configuration.ATIMWindow = (0);
2594
2595 pdev_network->InfrastructureMode = (cur_network->network.InfrastructureMode);
2596
2597 /* 1. Supported rates */
2598 /* 2. IE */
2599
2600 /* rtw_set_supported_rate(pdev_network->SupportedRates, pregistrypriv->wireless_mode) ; will be called in rtw_generate_ie */
2601 sz = rtw_generate_ie(pregistrypriv);
2602
2603 pdev_network->IELength = sz;
2604
2605 pdev_network->Length = get_wlan_bssid_ex_sz((struct wlan_bssid_ex *)pdev_network);
2606
2607 /* notes: translate IELength & Length after assign the Length to cmdsz in createbss_cmd(); */
2608 /* pdev_network->IELength = cpu_to_le32(sz); */
2609 }
2610
rtw_get_encrypt_decrypt_from_registrypriv(struct adapter * adapter)2611 void rtw_get_encrypt_decrypt_from_registrypriv(struct adapter *adapter)
2612 {
2613 }
2614
2615 /* the function is at passive_level */
rtw_joinbss_reset(struct adapter * padapter)2616 void rtw_joinbss_reset(struct adapter *padapter)
2617 {
2618 u8 threshold;
2619 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2620
2621 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
2622
2623 /* todo: if you want to do something io/reg/hw setting before join_bss, please add code here */
2624
2625 pmlmepriv->num_FortyMHzIntolerant = 0;
2626
2627 pmlmepriv->num_sta_no_ht = 0;
2628
2629 phtpriv->ampdu_enable = false;/* reset to disabled */
2630
2631 /* TH = 1 => means that invalidate usb rx aggregation */
2632 /* TH = 0 => means that validate usb rx aggregation, use init value. */
2633 if (phtpriv->ht_option) {
2634 if (padapter->registrypriv.wifi_spec == 1)
2635 threshold = 1;
2636 else
2637 threshold = 0;
2638 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
2639 } else{
2640 threshold = 1;
2641 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
2642 }
2643 }
2644
rtw_ht_use_default_setting(struct adapter * padapter)2645 void rtw_ht_use_default_setting(struct adapter *padapter)
2646 {
2647 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2648 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
2649 struct registry_priv *pregistrypriv = &padapter->registrypriv;
2650 bool bHwLDPCSupport = false, bHwSTBCSupport = false;
2651 bool bHwSupportBeamformer = false, bHwSupportBeamformee = false;
2652
2653 if (pregistrypriv->wifi_spec)
2654 phtpriv->bss_coexist = 1;
2655 else
2656 phtpriv->bss_coexist = 0;
2657
2658 phtpriv->sgi_40m = TEST_FLAG(pregistrypriv->short_gi, BIT1) ? true : false;
2659 phtpriv->sgi_20m = TEST_FLAG(pregistrypriv->short_gi, BIT0) ? true : false;
2660
2661 /* LDPC support */
2662 rtw_hal_get_def_var(padapter, HAL_DEF_RX_LDPC, (u8 *)&bHwLDPCSupport);
2663 CLEAR_FLAGS(phtpriv->ldpc_cap);
2664 if (bHwLDPCSupport) {
2665 if (TEST_FLAG(pregistrypriv->ldpc_cap, BIT4))
2666 SET_FLAG(phtpriv->ldpc_cap, LDPC_HT_ENABLE_RX);
2667 }
2668 rtw_hal_get_def_var(padapter, HAL_DEF_TX_LDPC, (u8 *)&bHwLDPCSupport);
2669 if (bHwLDPCSupport) {
2670 if (TEST_FLAG(pregistrypriv->ldpc_cap, BIT5))
2671 SET_FLAG(phtpriv->ldpc_cap, LDPC_HT_ENABLE_TX);
2672 }
2673 if (phtpriv->ldpc_cap)
2674 DBG_871X("[HT] Support LDPC = 0x%02X\n", phtpriv->ldpc_cap);
2675
2676 /* STBC */
2677 rtw_hal_get_def_var(padapter, HAL_DEF_TX_STBC, (u8 *)&bHwSTBCSupport);
2678 CLEAR_FLAGS(phtpriv->stbc_cap);
2679 if (bHwSTBCSupport) {
2680 if (TEST_FLAG(pregistrypriv->stbc_cap, BIT5))
2681 SET_FLAG(phtpriv->stbc_cap, STBC_HT_ENABLE_TX);
2682 }
2683 rtw_hal_get_def_var(padapter, HAL_DEF_RX_STBC, (u8 *)&bHwSTBCSupport);
2684 if (bHwSTBCSupport) {
2685 if (TEST_FLAG(pregistrypriv->stbc_cap, BIT4))
2686 SET_FLAG(phtpriv->stbc_cap, STBC_HT_ENABLE_RX);
2687 }
2688 if (phtpriv->stbc_cap)
2689 DBG_871X("[HT] Support STBC = 0x%02X\n", phtpriv->stbc_cap);
2690
2691 /* Beamforming setting */
2692 rtw_hal_get_def_var(padapter, HAL_DEF_EXPLICIT_BEAMFORMER, (u8 *)&bHwSupportBeamformer);
2693 rtw_hal_get_def_var(padapter, HAL_DEF_EXPLICIT_BEAMFORMEE, (u8 *)&bHwSupportBeamformee);
2694 CLEAR_FLAGS(phtpriv->beamform_cap);
2695 if (TEST_FLAG(pregistrypriv->beamform_cap, BIT4) && bHwSupportBeamformer) {
2696 SET_FLAG(phtpriv->beamform_cap, BEAMFORMING_HT_BEAMFORMER_ENABLE);
2697 DBG_871X("[HT] Support Beamformer\n");
2698 }
2699 if (TEST_FLAG(pregistrypriv->beamform_cap, BIT5) && bHwSupportBeamformee) {
2700 SET_FLAG(phtpriv->beamform_cap, BEAMFORMING_HT_BEAMFORMEE_ENABLE);
2701 DBG_871X("[HT] Support Beamformee\n");
2702 }
2703 }
2704
rtw_build_wmm_ie_ht(struct adapter * padapter,u8 * out_ie,uint * pout_len)2705 void rtw_build_wmm_ie_ht(struct adapter *padapter, u8 *out_ie, uint *pout_len)
2706 {
2707 unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
2708 int out_len;
2709 u8 *pframe;
2710
2711 if (padapter->mlmepriv.qospriv.qos_option == 0) {
2712 out_len = *pout_len;
2713 pframe = rtw_set_ie(out_ie+out_len, _VENDOR_SPECIFIC_IE_,
2714 _WMM_IE_Length_, WMM_IE, pout_len);
2715
2716 padapter->mlmepriv.qospriv.qos_option = 1;
2717 }
2718 }
2719
2720 /* the function is >= passive_level */
rtw_restructure_ht_ie(struct adapter * padapter,u8 * in_ie,u8 * out_ie,uint in_len,uint * pout_len,u8 channel)2721 unsigned int rtw_restructure_ht_ie(struct adapter *padapter, u8 *in_ie, u8 *out_ie, uint in_len, uint *pout_len, u8 channel)
2722 {
2723 u32 ielen, out_len;
2724 enum HT_CAP_AMPDU_FACTOR max_rx_ampdu_factor;
2725 unsigned char *p, *pframe;
2726 struct rtw_ieee80211_ht_cap ht_capie;
2727 u8 cbw40_enable = 0, stbc_rx_enable = 0, rf_type = 0, operation_bw = 0;
2728 struct registry_priv *pregistrypriv = &padapter->registrypriv;
2729 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2730 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
2731 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
2732
2733 phtpriv->ht_option = false;
2734
2735 out_len = *pout_len;
2736
2737 memset(&ht_capie, 0, sizeof(struct rtw_ieee80211_ht_cap));
2738
2739 ht_capie.cap_info = cpu_to_le16(IEEE80211_HT_CAP_DSSSCCK40);
2740
2741 if (phtpriv->sgi_20m)
2742 ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_SGI_20);
2743
2744 /* Get HT BW */
2745 if (in_ie == NULL) {
2746 /* TDLS: TODO 20/40 issue */
2747 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
2748 operation_bw = padapter->mlmeextpriv.cur_bwmode;
2749 if (operation_bw > CHANNEL_WIDTH_40)
2750 operation_bw = CHANNEL_WIDTH_40;
2751 } else
2752 /* TDLS: TODO 40? */
2753 operation_bw = CHANNEL_WIDTH_40;
2754 } else {
2755 p = rtw_get_ie(in_ie, _HT_ADD_INFO_IE_, &ielen, in_len);
2756 if (p && (ielen == sizeof(struct ieee80211_ht_addt_info))) {
2757 struct HT_info_element *pht_info = (struct HT_info_element *)(p+2);
2758 if (pht_info->infos[0] & BIT(2)) {
2759 switch (pht_info->infos[0] & 0x3) {
2760 case 1:
2761 case 3:
2762 operation_bw = CHANNEL_WIDTH_40;
2763 break;
2764 default:
2765 operation_bw = CHANNEL_WIDTH_20;
2766 break;
2767 }
2768 } else {
2769 operation_bw = CHANNEL_WIDTH_20;
2770 }
2771 }
2772 }
2773
2774 /* to disable 40M Hz support while gd_bw_40MHz_en = 0 */
2775 if (channel > 14) {
2776 if ((pregistrypriv->bw_mode & 0xf0) > 0)
2777 cbw40_enable = 1;
2778 } else {
2779 if ((pregistrypriv->bw_mode & 0x0f) > 0)
2780 cbw40_enable = 1;
2781 }
2782
2783 if ((cbw40_enable == 1) && (operation_bw == CHANNEL_WIDTH_40)) {
2784 ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH);
2785 if (phtpriv->sgi_40m)
2786 ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_SGI_40);
2787 }
2788
2789 if (TEST_FLAG(phtpriv->stbc_cap, STBC_HT_ENABLE_TX))
2790 ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_TX_STBC);
2791
2792 /* todo: disable SM power save mode */
2793 ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_SM_PS);
2794
2795 if (TEST_FLAG(phtpriv->stbc_cap, STBC_HT_ENABLE_RX)) {
2796 if ((channel <= 14 && pregistrypriv->rx_stbc == 0x1) || /* enable for 2.4GHz */
2797 (pregistrypriv->wifi_spec == 1)) {
2798 stbc_rx_enable = 1;
2799 DBG_871X("declare supporting RX STBC\n");
2800 }
2801 }
2802
2803 /* fill default supported_mcs_set */
2804 memcpy(ht_capie.supp_mcs_set, pmlmeext->default_supported_mcs_set, 16);
2805
2806 /* update default supported_mcs_set */
2807 rtw_hal_get_hwreg(padapter, HW_VAR_RF_TYPE, (u8 *)(&rf_type));
2808
2809 switch (rf_type) {
2810 case RF_1T1R:
2811 if (stbc_rx_enable)
2812 ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_RX_STBC_1R);/* RX STBC One spatial stream */
2813
2814 set_mcs_rate_by_mask(ht_capie.supp_mcs_set, MCS_RATE_1R);
2815 break;
2816
2817 case RF_2T2R:
2818 case RF_1T2R:
2819 default:
2820 if (stbc_rx_enable)
2821 ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_RX_STBC_2R);/* RX STBC two spatial stream */
2822
2823 #ifdef CONFIG_DISABLE_MCS13TO15
2824 if (((cbw40_enable == 1) && (operation_bw == CHANNEL_WIDTH_40)) && (pregistrypriv->wifi_spec != 1))
2825 set_mcs_rate_by_mask(ht_capie.supp_mcs_set, MCS_RATE_2R_13TO15_OFF);
2826 else
2827 set_mcs_rate_by_mask(ht_capie.supp_mcs_set, MCS_RATE_2R);
2828 #else /* CONFIG_DISABLE_MCS13TO15 */
2829 set_mcs_rate_by_mask(ht_capie.supp_mcs_set, MCS_RATE_2R);
2830 #endif /* CONFIG_DISABLE_MCS13TO15 */
2831 break;
2832 }
2833
2834 {
2835 u32 rx_packet_offset, max_recvbuf_sz;
2836 rtw_hal_get_def_var(padapter, HAL_DEF_RX_PACKET_OFFSET, &rx_packet_offset);
2837 rtw_hal_get_def_var(padapter, HAL_DEF_MAX_RECVBUF_SZ, &max_recvbuf_sz);
2838 }
2839
2840 if (padapter->driver_rx_ampdu_factor != 0xFF)
2841 max_rx_ampdu_factor =
2842 (enum HT_CAP_AMPDU_FACTOR)padapter->driver_rx_ampdu_factor;
2843 else
2844 rtw_hal_get_def_var(padapter, HW_VAR_MAX_RX_AMPDU_FACTOR,
2845 &max_rx_ampdu_factor);
2846
2847 /* rtw_hal_get_def_var(padapter, HW_VAR_MAX_RX_AMPDU_FACTOR, &max_rx_ampdu_factor); */
2848 ht_capie.ampdu_params_info = (max_rx_ampdu_factor&0x03);
2849
2850 if (padapter->securitypriv.dot11PrivacyAlgrthm == _AES_)
2851 ht_capie.ampdu_params_info |= (IEEE80211_HT_CAP_AMPDU_DENSITY&(0x07<<2));
2852 else
2853 ht_capie.ampdu_params_info |= (IEEE80211_HT_CAP_AMPDU_DENSITY&0x00);
2854
2855 pframe = rtw_set_ie(out_ie+out_len, _HT_CAPABILITY_IE_,
2856 sizeof(struct rtw_ieee80211_ht_cap), (unsigned char *)&ht_capie, pout_len);
2857
2858 phtpriv->ht_option = true;
2859
2860 if (in_ie != NULL) {
2861 p = rtw_get_ie(in_ie, _HT_ADD_INFO_IE_, &ielen, in_len);
2862 if (p && (ielen == sizeof(struct ieee80211_ht_addt_info))) {
2863 out_len = *pout_len;
2864 pframe = rtw_set_ie(out_ie+out_len, _HT_ADD_INFO_IE_, ielen, p+2, pout_len);
2865 }
2866 }
2867
2868 return phtpriv->ht_option;
2869
2870 }
2871
2872 /* the function is > passive_level (in critical_section) */
rtw_update_ht_cap(struct adapter * padapter,u8 * pie,uint ie_len,u8 channel)2873 void rtw_update_ht_cap(struct adapter *padapter, u8 *pie, uint ie_len, u8 channel)
2874 {
2875 u8 *p, max_ampdu_sz;
2876 int len;
2877 /* struct sta_info *bmc_sta, *psta; */
2878 struct rtw_ieee80211_ht_cap *pht_capie;
2879 struct ieee80211_ht_addt_info *pht_addtinfo;
2880 /* struct recv_reorder_ctrl *preorder_ctrl; */
2881 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2882 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
2883 /* struct recv_priv *precvpriv = &padapter->recvpriv; */
2884 struct registry_priv *pregistrypriv = &padapter->registrypriv;
2885 /* struct wlan_network *pcur_network = &(pmlmepriv->cur_network);; */
2886 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
2887 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
2888 u8 cbw40_enable = 0;
2889
2890
2891 if (!phtpriv->ht_option)
2892 return;
2893
2894 if ((!pmlmeinfo->HT_info_enable) || (!pmlmeinfo->HT_caps_enable))
2895 return;
2896
2897 DBG_871X("+rtw_update_ht_cap()\n");
2898
2899 /* maybe needs check if ap supports rx ampdu. */
2900 if ((phtpriv->ampdu_enable == false) && (pregistrypriv->ampdu_enable == 1)) {
2901 if (pregistrypriv->wifi_spec == 1) {
2902 /* remove this part because testbed AP should disable RX AMPDU */
2903 /* phtpriv->ampdu_enable = false; */
2904 phtpriv->ampdu_enable = true;
2905 } else {
2906 phtpriv->ampdu_enable = true;
2907 }
2908 } else if (pregistrypriv->ampdu_enable == 2) {
2909 /* remove this part because testbed AP should disable RX AMPDU */
2910 /* phtpriv->ampdu_enable = true; */
2911 }
2912
2913
2914 /* check Max Rx A-MPDU Size */
2915 len = 0;
2916 p = rtw_get_ie(pie+sizeof(struct ndis_802_11_fix_ie), _HT_CAPABILITY_IE_, &len, ie_len-sizeof(struct ndis_802_11_fix_ie));
2917 if (p && len > 0) {
2918 pht_capie = (struct rtw_ieee80211_ht_cap *)(p+2);
2919 max_ampdu_sz = (pht_capie->ampdu_params_info & IEEE80211_HT_CAP_AMPDU_FACTOR);
2920 max_ampdu_sz = 1 << (max_ampdu_sz+3); /* max_ampdu_sz (kbytes); */
2921
2922 /* DBG_871X("rtw_update_ht_cap(): max_ampdu_sz =%d\n", max_ampdu_sz); */
2923 phtpriv->rx_ampdu_maxlen = max_ampdu_sz;
2924
2925 }
2926
2927
2928 len = 0;
2929 p = rtw_get_ie(pie+sizeof(struct ndis_802_11_fix_ie), _HT_ADD_INFO_IE_, &len, ie_len-sizeof(struct ndis_802_11_fix_ie));
2930 if (p && len > 0) {
2931 pht_addtinfo = (struct ieee80211_ht_addt_info *)(p+2);
2932 /* todo: */
2933 }
2934
2935 if (channel > 14) {
2936 if ((pregistrypriv->bw_mode & 0xf0) > 0)
2937 cbw40_enable = 1;
2938 } else {
2939 if ((pregistrypriv->bw_mode & 0x0f) > 0)
2940 cbw40_enable = 1;
2941 }
2942
2943 /* update cur_bwmode & cur_ch_offset */
2944 if ((cbw40_enable) &&
2945 (le16_to_cpu(pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info) &
2946 BIT(1)) && (pmlmeinfo->HT_info.infos[0] & BIT(2))) {
2947 int i;
2948 u8 rf_type;
2949
2950 rtw_hal_get_hwreg(padapter, HW_VAR_RF_TYPE, (u8 *)(&rf_type));
2951
2952 /* update the MCS set */
2953 for (i = 0; i < 16; i++)
2954 pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= pmlmeext->default_supported_mcs_set[i];
2955
2956 /* update the MCS rates */
2957 switch (rf_type) {
2958 case RF_1T1R:
2959 case RF_1T2R:
2960 set_mcs_rate_by_mask(pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate, MCS_RATE_1R);
2961 break;
2962 case RF_2T2R:
2963 default:
2964 #ifdef CONFIG_DISABLE_MCS13TO15
2965 if (pmlmeext->cur_bwmode == CHANNEL_WIDTH_40 && pregistrypriv->wifi_spec != 1)
2966 set_mcs_rate_by_mask(pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate, MCS_RATE_2R_13TO15_OFF);
2967 else
2968 set_mcs_rate_by_mask(pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate, MCS_RATE_2R);
2969 #else /* CONFIG_DISABLE_MCS13TO15 */
2970 set_mcs_rate_by_mask(pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate, MCS_RATE_2R);
2971 #endif /* CONFIG_DISABLE_MCS13TO15 */
2972 }
2973
2974 /* switch to the 40M Hz mode according to the AP */
2975 /* pmlmeext->cur_bwmode = CHANNEL_WIDTH_40; */
2976 switch ((pmlmeinfo->HT_info.infos[0] & 0x3)) {
2977 case EXTCHNL_OFFSET_UPPER:
2978 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_LOWER;
2979 break;
2980
2981 case EXTCHNL_OFFSET_LOWER:
2982 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_UPPER;
2983 break;
2984
2985 default:
2986 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
2987 break;
2988 }
2989 }
2990
2991 /* */
2992 /* Config SM Power Save setting */
2993 /* */
2994 pmlmeinfo->SM_PS =
2995 (le16_to_cpu(pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info) &
2996 0x0C) >> 2;
2997 if (pmlmeinfo->SM_PS == WLAN_HT_CAP_SM_PS_STATIC)
2998 DBG_871X("%s(): WLAN_HT_CAP_SM_PS_STATIC\n", __func__);
2999
3000 /* */
3001 /* Config current HT Protection mode. */
3002 /* */
3003 pmlmeinfo->HT_protection = pmlmeinfo->HT_info.infos[1] & 0x3;
3004 }
3005
rtw_issue_addbareq_cmd(struct adapter * padapter,struct xmit_frame * pxmitframe)3006 void rtw_issue_addbareq_cmd(struct adapter *padapter, struct xmit_frame *pxmitframe)
3007 {
3008 u8 issued;
3009 int priority;
3010 struct sta_info *psta = NULL;
3011 struct ht_priv *phtpriv;
3012 struct pkt_attrib *pattrib = &pxmitframe->attrib;
3013 s32 bmcst = IS_MCAST(pattrib->ra);
3014
3015 /* if (bmcst || (padapter->mlmepriv.LinkDetectInfo.bTxBusyTraffic == false)) */
3016 if (bmcst || (padapter->mlmepriv.LinkDetectInfo.NumTxOkInPeriod < 100))
3017 return;
3018
3019 priority = pattrib->priority;
3020
3021 psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
3022 if (pattrib->psta != psta) {
3023 DBG_871X("%s, pattrib->psta(%p) != psta(%p)\n", __func__, pattrib->psta, psta);
3024 return;
3025 }
3026
3027 if (psta == NULL) {
3028 DBG_871X("%s, psta ==NUL\n", __func__);
3029 return;
3030 }
3031
3032 if (!(psta->state & _FW_LINKED)) {
3033 DBG_871X("%s, psta->state(0x%x) != _FW_LINKED\n", __func__, psta->state);
3034 return;
3035 }
3036
3037
3038 phtpriv = &psta->htpriv;
3039
3040 if ((phtpriv->ht_option == true) && (phtpriv->ampdu_enable == true)) {
3041 issued = (phtpriv->agg_enable_bitmap>>priority)&0x1;
3042 issued |= (phtpriv->candidate_tid_bitmap>>priority)&0x1;
3043
3044 if (0 == issued) {
3045 DBG_871X("rtw_issue_addbareq_cmd, p =%d\n", priority);
3046 psta->htpriv.candidate_tid_bitmap |= BIT((u8)priority);
3047 rtw_addbareq_cmd(padapter, (u8) priority, pattrib->ra);
3048 }
3049 }
3050
3051 }
3052
rtw_append_exented_cap(struct adapter * padapter,u8 * out_ie,uint * pout_len)3053 void rtw_append_exented_cap(struct adapter *padapter, u8 *out_ie, uint *pout_len)
3054 {
3055 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
3056 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
3057 u8 cap_content[8] = {0};
3058 u8 *pframe;
3059
3060
3061 if (phtpriv->bss_coexist) {
3062 SET_EXT_CAPABILITY_ELE_BSS_COEXIST(cap_content, 1);
3063 }
3064
3065 pframe = rtw_set_ie(out_ie + *pout_len, EID_EXTCapability, 8, cap_content, pout_len);
3066 }
3067
rtw_set_to_roam(struct adapter * adapter,u8 to_roam)3068 inline void rtw_set_to_roam(struct adapter *adapter, u8 to_roam)
3069 {
3070 if (to_roam == 0)
3071 adapter->mlmepriv.to_join = false;
3072 adapter->mlmepriv.to_roam = to_roam;
3073 }
3074
rtw_dec_to_roam(struct adapter * adapter)3075 inline u8 rtw_dec_to_roam(struct adapter *adapter)
3076 {
3077 adapter->mlmepriv.to_roam--;
3078 return adapter->mlmepriv.to_roam;
3079 }
3080
rtw_to_roam(struct adapter * adapter)3081 inline u8 rtw_to_roam(struct adapter *adapter)
3082 {
3083 return adapter->mlmepriv.to_roam;
3084 }
3085
rtw_roaming(struct adapter * padapter,struct wlan_network * tgt_network)3086 void rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
3087 {
3088 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
3089
3090 spin_lock_bh(&pmlmepriv->lock);
3091 _rtw_roaming(padapter, tgt_network);
3092 spin_unlock_bh(&pmlmepriv->lock);
3093 }
_rtw_roaming(struct adapter * padapter,struct wlan_network * tgt_network)3094 void _rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
3095 {
3096 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
3097 struct wlan_network *cur_network = &pmlmepriv->cur_network;
3098 int do_join_r;
3099
3100 if (0 < rtw_to_roam(padapter)) {
3101 DBG_871X("roaming from %s("MAC_FMT"), length:%d\n",
3102 cur_network->network.Ssid.Ssid, MAC_ARG(cur_network->network.MacAddress),
3103 cur_network->network.Ssid.SsidLength);
3104 memcpy(&pmlmepriv->assoc_ssid, &cur_network->network.Ssid, sizeof(struct ndis_802_11_ssid));
3105
3106 pmlmepriv->assoc_by_bssid = false;
3107
3108 while (1) {
3109 do_join_r = rtw_do_join(padapter);
3110 if (_SUCCESS == do_join_r) {
3111 break;
3112 } else {
3113 DBG_871X("roaming do_join return %d\n", do_join_r);
3114 rtw_dec_to_roam(padapter);
3115
3116 if (rtw_to_roam(padapter) > 0) {
3117 continue;
3118 } else {
3119 DBG_871X("%s(%d) -to roaming fail, indicate_disconnect\n", __func__, __LINE__);
3120 rtw_indicate_disconnect(padapter);
3121 break;
3122 }
3123 }
3124 }
3125 }
3126
3127 }
3128
rtw_linked_check(struct adapter * padapter)3129 sint rtw_linked_check(struct adapter *padapter)
3130 {
3131 if ((check_fwstate(&padapter->mlmepriv, WIFI_AP_STATE) == true) ||
3132 (check_fwstate(&padapter->mlmepriv, WIFI_ADHOC_STATE|WIFI_ADHOC_MASTER_STATE) == true)) {
3133 if (padapter->stapriv.asoc_sta_count > 2)
3134 return true;
3135 } else{ /* Station mode */
3136 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) == true)
3137 return true;
3138 }
3139 return false;
3140 }
3141
