1 // SPDX-License-Identifier: GPL-2.0
2 /******************************************************************************
3 *
4 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
5 *
6 ******************************************************************************/
7 #include <linux/etherdevice.h>
8 #include <drv_types.h>
9 #include <rtw_debug.h>
10 #include <hal_btcoex.h>
11 #include <linux/jiffies.h>
12
rtw_init_mlme_priv(struct adapter * padapter)13 int rtw_init_mlme_priv(struct adapter *padapter)
14 {
15 int i;
16 u8 *pbuf;
17 struct wlan_network *pnetwork;
18 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
19 int res = _SUCCESS;
20
21 pmlmepriv->nic_hdl = (u8 *)padapter;
22
23 pmlmepriv->pscanned = NULL;
24 pmlmepriv->fw_state = WIFI_STATION_STATE; /* Must sync with rtw_wdev_alloc() */
25 /* wdev->iftype = NL80211_IFTYPE_STATION */
26 pmlmepriv->cur_network.network.infrastructure_mode = Ndis802_11AutoUnknown;
27 pmlmepriv->scan_mode = SCAN_ACTIVE;/* 1: active, 0: passive. Maybe someday we should rename this varable to "active_mode" (Jeff) */
28
29 spin_lock_init(&pmlmepriv->lock);
30 INIT_LIST_HEAD(&pmlmepriv->free_bss_pool.queue);
31 spin_lock_init(&pmlmepriv->free_bss_pool.lock);
32 INIT_LIST_HEAD(&pmlmepriv->scanned_queue.queue);
33 spin_lock_init(&pmlmepriv->scanned_queue.lock);
34
35 set_scanned_network_val(pmlmepriv, 0);
36
37 memset(&pmlmepriv->assoc_ssid, 0, sizeof(struct ndis_802_11_ssid));
38
39 pbuf = vzalloc(array_size(MAX_BSS_CNT, sizeof(struct wlan_network)));
40
41 if (!pbuf) {
42 res = _FAIL;
43 goto exit;
44 }
45 pmlmepriv->free_bss_buf = pbuf;
46
47 pnetwork = (struct wlan_network *)pbuf;
48
49 for (i = 0; i < MAX_BSS_CNT; i++) {
50 INIT_LIST_HEAD(&pnetwork->list);
51
52 list_add_tail(&pnetwork->list, &pmlmepriv->free_bss_pool.queue);
53
54 pnetwork++;
55 }
56
57 /* allocate DMA-able/Non-Page memory for cmd_buf and rsp_buf */
58
59 rtw_clear_scan_deny(padapter);
60
61 #define RTW_ROAM_SCAN_RESULT_EXP_MS 5000
62 #define RTW_ROAM_RSSI_DIFF_TH 10
63 #define RTW_ROAM_SCAN_INTERVAL_MS 10000
64
65 pmlmepriv->roam_flags = 0
66 | RTW_ROAM_ON_EXPIRED
67 | RTW_ROAM_ON_RESUME
68 ;
69
70 pmlmepriv->roam_scanr_exp_ms = RTW_ROAM_SCAN_RESULT_EXP_MS;
71 pmlmepriv->roam_rssi_diff_th = RTW_ROAM_RSSI_DIFF_TH;
72 pmlmepriv->roam_scan_int_ms = RTW_ROAM_SCAN_INTERVAL_MS;
73
74 rtw_init_mlme_timer(padapter);
75
76 exit:
77
78 return res;
79 }
80
rtw_free_mlme_ie_data(u8 ** ppie,u32 * plen)81 static void rtw_free_mlme_ie_data(u8 **ppie, u32 *plen)
82 {
83 if (*ppie) {
84 kfree(*ppie);
85 *plen = 0;
86 *ppie = NULL;
87 }
88 }
89
rtw_free_mlme_priv_ie_data(struct mlme_priv * pmlmepriv)90 void rtw_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv)
91 {
92 rtw_buf_free(&pmlmepriv->assoc_req, &pmlmepriv->assoc_req_len);
93 rtw_buf_free(&pmlmepriv->assoc_rsp, &pmlmepriv->assoc_rsp_len);
94 rtw_free_mlme_ie_data(&pmlmepriv->wps_beacon_ie, &pmlmepriv->wps_beacon_ie_len);
95 rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_req_ie, &pmlmepriv->wps_probe_req_ie_len);
96 rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_resp_ie, &pmlmepriv->wps_probe_resp_ie_len);
97 rtw_free_mlme_ie_data(&pmlmepriv->wps_assoc_resp_ie, &pmlmepriv->wps_assoc_resp_ie_len);
98
99 rtw_free_mlme_ie_data(&pmlmepriv->p2p_beacon_ie, &pmlmepriv->p2p_beacon_ie_len);
100 rtw_free_mlme_ie_data(&pmlmepriv->p2p_probe_req_ie, &pmlmepriv->p2p_probe_req_ie_len);
101 rtw_free_mlme_ie_data(&pmlmepriv->p2p_probe_resp_ie, &pmlmepriv->p2p_probe_resp_ie_len);
102 rtw_free_mlme_ie_data(&pmlmepriv->p2p_go_probe_resp_ie, &pmlmepriv->p2p_go_probe_resp_ie_len);
103 rtw_free_mlme_ie_data(&pmlmepriv->p2p_assoc_req_ie, &pmlmepriv->p2p_assoc_req_ie_len);
104 }
105
_rtw_free_mlme_priv(struct mlme_priv * pmlmepriv)106 void _rtw_free_mlme_priv(struct mlme_priv *pmlmepriv)
107 {
108 if (pmlmepriv) {
109 rtw_free_mlme_priv_ie_data(pmlmepriv);
110 vfree(pmlmepriv->free_bss_buf);
111 }
112 }
113
114 /*
115 struct wlan_network *_rtw_dequeue_network(struct __queue *queue)
116 {
117 _irqL irqL;
118
119 struct wlan_network *pnetwork;
120
121 spin_lock_bh(&queue->lock);
122
123 if (list_empty(&queue->queue))
124
125 pnetwork = NULL;
126
127 else
128 {
129 pnetwork = container_of(get_next(&queue->queue), struct wlan_network, list);
130
131 list_del_init(&(pnetwork->list));
132 }
133
134 spin_unlock_bh(&queue->lock);
135
136 return pnetwork;
137 }
138 */
139
rtw_alloc_network(struct mlme_priv * pmlmepriv)140 struct wlan_network *rtw_alloc_network(struct mlme_priv *pmlmepriv)
141 {
142 struct wlan_network *pnetwork;
143 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
144 struct list_head *plist = NULL;
145
146 spin_lock_bh(&free_queue->lock);
147
148 if (list_empty(&free_queue->queue)) {
149 pnetwork = NULL;
150 goto exit;
151 }
152 plist = get_next(&(free_queue->queue));
153
154 pnetwork = container_of(plist, struct wlan_network, list);
155
156 list_del_init(&pnetwork->list);
157
158 pnetwork->network_type = 0;
159 pnetwork->fixed = false;
160 pnetwork->last_scanned = jiffies;
161 pnetwork->aid = 0;
162 pnetwork->join_res = 0;
163
164 pmlmepriv->num_of_scanned++;
165
166 exit:
167 spin_unlock_bh(&free_queue->lock);
168
169 return pnetwork;
170 }
171
_rtw_free_network(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork,u8 isfreeall)172 void _rtw_free_network(struct mlme_priv *pmlmepriv, struct wlan_network *pnetwork, u8 isfreeall)
173 {
174 unsigned int delta_time;
175 u32 lifetime = SCANQUEUE_LIFETIME;
176 /* _irqL irqL; */
177 struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
178
179 if (!pnetwork)
180 return;
181
182 if (pnetwork->fixed)
183 return;
184
185 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true) ||
186 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true))
187 lifetime = 1;
188
189 if (!isfreeall) {
190 delta_time = jiffies_to_msecs(jiffies - pnetwork->last_scanned);
191 if (delta_time < lifetime)/* unit:msec */
192 return;
193 }
194
195 spin_lock_bh(&free_queue->lock);
196
197 list_del_init(&(pnetwork->list));
198
199 list_add_tail(&(pnetwork->list), &(free_queue->queue));
200
201 pmlmepriv->num_of_scanned--;
202
203 spin_unlock_bh(&free_queue->lock);
204 }
205
_rtw_free_network_nolock(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork)206 void _rtw_free_network_nolock(struct mlme_priv *pmlmepriv, struct wlan_network *pnetwork)
207 {
208
209 struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
210
211 if (!pnetwork)
212 return;
213
214 if (pnetwork->fixed)
215 return;
216
217 /* spin_lock_irqsave(&free_queue->lock, irqL); */
218
219 list_del_init(&(pnetwork->list));
220
221 list_add_tail(&(pnetwork->list), get_list_head(free_queue));
222
223 pmlmepriv->num_of_scanned--;
224
225 /* spin_unlock_irqrestore(&free_queue->lock, irqL); */
226 }
227
228 /*
229 return the wlan_network with the matching addr
230
231 Shall be called under atomic context... to avoid possible racing condition...
232 */
_rtw_find_network(struct __queue * scanned_queue,u8 * addr)233 struct wlan_network *_rtw_find_network(struct __queue *scanned_queue, u8 *addr)
234 {
235 struct list_head *phead, *plist;
236 struct wlan_network *pnetwork = NULL;
237 u8 zero_addr[ETH_ALEN] = {0, 0, 0, 0, 0, 0};
238
239 if (!memcmp(zero_addr, addr, ETH_ALEN)) {
240 pnetwork = NULL;
241 goto exit;
242 }
243
244 /* spin_lock_bh(&scanned_queue->lock); */
245
246 phead = get_list_head(scanned_queue);
247 list_for_each(plist, phead) {
248 pnetwork = list_entry(plist, struct wlan_network, list);
249
250 if (!memcmp(addr, pnetwork->network.mac_address, ETH_ALEN))
251 break;
252 }
253
254 if (plist == phead)
255 pnetwork = NULL;
256
257 /* spin_unlock_bh(&scanned_queue->lock); */
258
259 exit:
260 return pnetwork;
261 }
262
rtw_free_network_queue(struct adapter * padapter,u8 isfreeall)263 void rtw_free_network_queue(struct adapter *padapter, u8 isfreeall)
264 {
265 struct list_head *phead, *plist, *tmp;
266 struct wlan_network *pnetwork;
267 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
268 struct __queue *scanned_queue = &pmlmepriv->scanned_queue;
269
270 spin_lock_bh(&scanned_queue->lock);
271
272 phead = get_list_head(scanned_queue);
273 list_for_each_safe(plist, tmp, phead) {
274
275 pnetwork = list_entry(plist, struct wlan_network, list);
276
277 _rtw_free_network(pmlmepriv, pnetwork, isfreeall);
278
279 }
280
281 spin_unlock_bh(&scanned_queue->lock);
282 }
283
rtw_if_up(struct adapter * padapter)284 signed int rtw_if_up(struct adapter *padapter)
285 {
286 signed int res;
287
288 if (padapter->bDriverStopped || padapter->bSurpriseRemoved ||
289 (check_fwstate(&padapter->mlmepriv, _FW_LINKED) == false))
290 res = false;
291 else
292 res = true;
293
294 return res;
295 }
296
rtw_generate_random_ibss(u8 * pibss)297 void rtw_generate_random_ibss(u8 *pibss)
298 {
299 unsigned long curtime = jiffies;
300
301 pibss[0] = 0x02; /* in ad-hoc mode bit1 must set to 1 */
302 pibss[1] = 0x11;
303 pibss[2] = 0x87;
304 pibss[3] = (u8)(curtime & 0xff) ;/* p[0]; */
305 pibss[4] = (u8)((curtime>>8) & 0xff) ;/* p[1]; */
306 pibss[5] = (u8)((curtime>>16) & 0xff) ;/* p[2]; */
307 }
308
rtw_get_capability_from_ie(u8 * ie)309 u8 *rtw_get_capability_from_ie(u8 *ie)
310 {
311 return ie + 8 + 2;
312 }
313
rtw_get_capability(struct wlan_bssid_ex * bss)314 u16 rtw_get_capability(struct wlan_bssid_ex *bss)
315 {
316 __le16 val;
317
318 memcpy((u8 *)&val, rtw_get_capability_from_ie(bss->ies), 2);
319
320 return le16_to_cpu(val);
321 }
322
rtw_get_beacon_interval_from_ie(u8 * ie)323 u8 *rtw_get_beacon_interval_from_ie(u8 *ie)
324 {
325 return ie + 8;
326 }
327
rtw_free_mlme_priv(struct mlme_priv * pmlmepriv)328 void rtw_free_mlme_priv(struct mlme_priv *pmlmepriv)
329 {
330 _rtw_free_mlme_priv(pmlmepriv);
331 }
332
333 /*
334 static struct wlan_network *rtw_dequeue_network(struct __queue *queue)
335 {
336 struct wlan_network *pnetwork;
337
338 pnetwork = _rtw_dequeue_network(queue);
339 return pnetwork;
340 }
341 */
342
343 void rtw_free_network_nolock(struct adapter *padapter, struct wlan_network *pnetwork);
rtw_free_network_nolock(struct adapter * padapter,struct wlan_network * pnetwork)344 void rtw_free_network_nolock(struct adapter *padapter, struct wlan_network *pnetwork)
345 {
346 _rtw_free_network_nolock(&(padapter->mlmepriv), pnetwork);
347 rtw_cfg80211_unlink_bss(padapter, pnetwork);
348 }
349
350 /*
351 return the wlan_network with the matching addr
352
353 Shall be called under atomic context... to avoid possible racing condition...
354 */
rtw_find_network(struct __queue * scanned_queue,u8 * addr)355 struct wlan_network *rtw_find_network(struct __queue *scanned_queue, u8 *addr)
356 {
357 struct wlan_network *pnetwork = _rtw_find_network(scanned_queue, addr);
358
359 return pnetwork;
360 }
361
rtw_is_same_ibss(struct adapter * adapter,struct wlan_network * pnetwork)362 int rtw_is_same_ibss(struct adapter *adapter, struct wlan_network *pnetwork)
363 {
364 int ret = true;
365 struct security_priv *psecuritypriv = &adapter->securitypriv;
366
367 if ((psecuritypriv->dot11PrivacyAlgrthm != _NO_PRIVACY_) &&
368 (pnetwork->network.privacy == 0))
369 ret = false;
370 else if ((psecuritypriv->dot11PrivacyAlgrthm == _NO_PRIVACY_) &&
371 (pnetwork->network.privacy == 1))
372 ret = false;
373 else
374 ret = true;
375
376 return ret;
377
378 }
379
is_same_ess(struct wlan_bssid_ex * a,struct wlan_bssid_ex * b)380 inline int is_same_ess(struct wlan_bssid_ex *a, struct wlan_bssid_ex *b)
381 {
382 return (a->ssid.ssid_length == b->ssid.ssid_length)
383 && !memcmp(a->ssid.ssid, b->ssid.ssid, a->ssid.ssid_length);
384 }
385
is_same_network(struct wlan_bssid_ex * src,struct wlan_bssid_ex * dst,u8 feature)386 int is_same_network(struct wlan_bssid_ex *src, struct wlan_bssid_ex *dst, u8 feature)
387 {
388 u16 s_cap, d_cap;
389 __le16 tmps, tmpd;
390
391 if (rtw_bug_check(dst, src, &s_cap, &d_cap) == false)
392 return false;
393
394 memcpy((u8 *)&tmps, rtw_get_capability_from_ie(src->ies), 2);
395 memcpy((u8 *)&tmpd, rtw_get_capability_from_ie(dst->ies), 2);
396
397 s_cap = le16_to_cpu(tmps);
398 d_cap = le16_to_cpu(tmpd);
399
400 return (src->ssid.ssid_length == dst->ssid.ssid_length) &&
401 /* (src->configuration.ds_config == dst->configuration.ds_config) && */
402 ((!memcmp(src->mac_address, dst->mac_address, ETH_ALEN))) &&
403 ((!memcmp(src->ssid.ssid, dst->ssid.ssid, src->ssid.ssid_length))) &&
404 ((s_cap & WLAN_CAPABILITY_IBSS) ==
405 (d_cap & WLAN_CAPABILITY_IBSS)) &&
406 ((s_cap & WLAN_CAPABILITY_ESS) ==
407 (d_cap & WLAN_CAPABILITY_ESS));
408
409 }
410
_rtw_find_same_network(struct __queue * scanned_queue,struct wlan_network * network)411 struct wlan_network *_rtw_find_same_network(struct __queue *scanned_queue, struct wlan_network *network)
412 {
413 struct list_head *phead, *plist;
414 struct wlan_network *found = NULL;
415
416 phead = get_list_head(scanned_queue);
417 list_for_each(plist, phead) {
418 found = list_entry(plist, struct wlan_network, list);
419
420 if (is_same_network(&network->network, &found->network, 0))
421 break;
422 }
423
424 if (plist == phead)
425 found = NULL;
426
427 return found;
428 }
429
rtw_get_oldest_wlan_network(struct __queue * scanned_queue)430 struct wlan_network *rtw_get_oldest_wlan_network(struct __queue *scanned_queue)
431 {
432 struct list_head *plist, *phead;
433
434 struct wlan_network *pwlan = NULL;
435 struct wlan_network *oldest = NULL;
436
437 phead = get_list_head(scanned_queue);
438
439 list_for_each(plist, phead) {
440
441 pwlan = list_entry(plist, struct wlan_network, list);
442
443 if (!pwlan->fixed) {
444 if (!oldest || time_after(oldest->last_scanned, pwlan->last_scanned))
445 oldest = pwlan;
446 }
447 }
448 return oldest;
449
450 }
451
update_network(struct wlan_bssid_ex * dst,struct wlan_bssid_ex * src,struct adapter * padapter,bool update_ie)452 void update_network(struct wlan_bssid_ex *dst, struct wlan_bssid_ex *src,
453 struct adapter *padapter, bool update_ie)
454 {
455 long rssi_ori = dst->rssi;
456
457 u8 sq_smp = src->phy_info.signal_quality;
458
459 u8 ss_final;
460 u8 sq_final;
461 long rssi_final;
462
463 /* The rule below is 1/5 for sample value, 4/5 for history value */
464 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) && is_same_network(&(padapter->mlmepriv.cur_network.network), src, 0)) {
465 /* Take the recvpriv's value for the connected AP*/
466 ss_final = padapter->recvpriv.signal_strength;
467 sq_final = padapter->recvpriv.signal_qual;
468 /* the rssi value here is undecorated, and will be used for antenna diversity */
469 if (sq_smp != 101) /* from the right channel */
470 rssi_final = (src->rssi+dst->rssi*4)/5;
471 else
472 rssi_final = rssi_ori;
473 } else {
474 if (sq_smp != 101) { /* from the right channel */
475 ss_final = ((u32)(src->phy_info.signal_strength)+(u32)(dst->phy_info.signal_strength)*4)/5;
476 sq_final = ((u32)(src->phy_info.signal_quality)+(u32)(dst->phy_info.signal_quality)*4)/5;
477 rssi_final = (src->rssi+dst->rssi*4)/5;
478 } else {
479 /* bss info not receiving from the right channel, use the original RX signal infos */
480 ss_final = dst->phy_info.signal_strength;
481 sq_final = dst->phy_info.signal_quality;
482 rssi_final = dst->rssi;
483 }
484
485 }
486
487 if (update_ie) {
488 dst->reserved[0] = src->reserved[0];
489 dst->reserved[1] = src->reserved[1];
490 memcpy((u8 *)dst, (u8 *)src, get_wlan_bssid_ex_sz(src));
491 }
492
493 dst->phy_info.signal_strength = ss_final;
494 dst->phy_info.signal_quality = sq_final;
495 dst->rssi = rssi_final;
496 }
497
update_current_network(struct adapter * adapter,struct wlan_bssid_ex * pnetwork)498 static void update_current_network(struct adapter *adapter, struct wlan_bssid_ex *pnetwork)
499 {
500 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
501
502 rtw_bug_check(&(pmlmepriv->cur_network.network),
503 &(pmlmepriv->cur_network.network),
504 &(pmlmepriv->cur_network.network),
505 &(pmlmepriv->cur_network.network));
506
507 if ((check_fwstate(pmlmepriv, _FW_LINKED) == true) && (is_same_network(&(pmlmepriv->cur_network.network), pnetwork, 0))) {
508 /* if (pmlmepriv->cur_network.network.ie_length<= pnetwork->ie_length) */
509 {
510 update_network(&(pmlmepriv->cur_network.network), pnetwork, adapter, true);
511 rtw_update_protection(adapter, (pmlmepriv->cur_network.network.ies) + sizeof(struct ndis_802_11_fix_ie),
512 pmlmepriv->cur_network.network.ie_length);
513 }
514 }
515 }
516
517 /*
518 Caller must hold pmlmepriv->lock first.
519 */
rtw_update_scanned_network(struct adapter * adapter,struct wlan_bssid_ex * target)520 void rtw_update_scanned_network(struct adapter *adapter, struct wlan_bssid_ex *target)
521 {
522 struct list_head *plist, *phead;
523 u32 bssid_ex_sz;
524 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
525 struct __queue *queue = &(pmlmepriv->scanned_queue);
526 struct wlan_network *pnetwork = NULL;
527 struct wlan_network *oldest = NULL;
528 int target_find = 0;
529 u8 feature = 0;
530
531 spin_lock_bh(&queue->lock);
532 phead = get_list_head(queue);
533 list_for_each(plist, phead) {
534 pnetwork = list_entry(plist, struct wlan_network, list);
535
536 rtw_bug_check(pnetwork, pnetwork, pnetwork, pnetwork);
537
538 if (is_same_network(&(pnetwork->network), target, feature)) {
539 target_find = 1;
540 break;
541 }
542
543 if (rtw_roam_flags(adapter)) {
544 /* TODO: don't select network in the same ess as oldest if it's new enough*/
545 }
546
547 if (!oldest || time_after(oldest->last_scanned, pnetwork->last_scanned))
548 oldest = pnetwork;
549
550 }
551
552 /* If we didn't find a match, then get a new network slot to initialize
553 * with this beacon's information */
554 /* if (phead == plist) { */
555 if (!target_find) {
556 if (list_empty(&pmlmepriv->free_bss_pool.queue)) {
557 /* If there are no more slots, expire the oldest */
558 /* list_del_init(&oldest->list); */
559 pnetwork = oldest;
560 if (!pnetwork)
561 goto exit;
562
563 memcpy(&(pnetwork->network), target, get_wlan_bssid_ex_sz(target));
564 /* variable initialize */
565 pnetwork->fixed = false;
566 pnetwork->last_scanned = jiffies;
567
568 pnetwork->network_type = 0;
569 pnetwork->aid = 0;
570 pnetwork->join_res = 0;
571
572 /* bss info not receiving from the right channel */
573 if (pnetwork->network.phy_info.signal_quality == 101)
574 pnetwork->network.phy_info.signal_quality = 0;
575 } else {
576 /* Otherwise just pull from the free list */
577
578 pnetwork = rtw_alloc_network(pmlmepriv); /* will update scan_time */
579
580 if (!pnetwork)
581 goto exit;
582
583 bssid_ex_sz = get_wlan_bssid_ex_sz(target);
584 target->length = bssid_ex_sz;
585 memcpy(&(pnetwork->network), target, bssid_ex_sz);
586
587 pnetwork->last_scanned = jiffies;
588
589 /* bss info not receiving from the right channel */
590 if (pnetwork->network.phy_info.signal_quality == 101)
591 pnetwork->network.phy_info.signal_quality = 0;
592
593 list_add_tail(&(pnetwork->list), &(queue->queue));
594
595 }
596 } else {
597 /* we have an entry and we are going to update it. But this entry may
598 * be already expired. In this case we do the same as we found a new
599 * net and call the new_net handler
600 */
601 bool update_ie = true;
602
603 pnetwork->last_scanned = jiffies;
604
605 /* target.reserved[0]== 1, means that scanned network is a bcn frame. */
606 if (pnetwork->network.ie_length > target->ie_length && target->reserved[0] == 1)
607 update_ie = false;
608
609 /* probe resp(3) > beacon(1) > probe req(2) */
610 if (target->reserved[0] != 2 &&
611 target->reserved[0] >= pnetwork->network.reserved[0]) {
612 update_ie = true;
613 } else {
614 update_ie = false;
615 }
616
617 update_network(&(pnetwork->network), target, adapter, update_ie);
618 }
619
620 exit:
621 spin_unlock_bh(&queue->lock);
622 }
623
624 void rtw_add_network(struct adapter *adapter, struct wlan_bssid_ex *pnetwork);
rtw_add_network(struct adapter * adapter,struct wlan_bssid_ex * pnetwork)625 void rtw_add_network(struct adapter *adapter, struct wlan_bssid_ex *pnetwork)
626 {
627 /* struct __queue *queue = &(pmlmepriv->scanned_queue); */
628
629 /* spin_lock_bh(&queue->lock); */
630
631 update_current_network(adapter, pnetwork);
632
633 rtw_update_scanned_network(adapter, pnetwork);
634
635 /* spin_unlock_bh(&queue->lock); */
636 }
637
638 /* select the desired network based on the capability of the (i)bss. */
639 /* check items: (1) security */
640 /* (2) network_type */
641 /* (3) WMM */
642 /* (4) HT */
643 /* (5) others */
644 int rtw_is_desired_network(struct adapter *adapter, struct wlan_network *pnetwork);
rtw_is_desired_network(struct adapter * adapter,struct wlan_network * pnetwork)645 int rtw_is_desired_network(struct adapter *adapter, struct wlan_network *pnetwork)
646 {
647 struct security_priv *psecuritypriv = &adapter->securitypriv;
648 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
649 u32 desired_encmode;
650 u32 privacy;
651
652 /* u8 wps_ie[512]; */
653 uint wps_ielen;
654
655 int bselected = true;
656
657 desired_encmode = psecuritypriv->ndisencryptstatus;
658 privacy = pnetwork->network.privacy;
659
660 if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
661 if (rtw_get_wps_ie(pnetwork->network.ies+_FIXED_IE_LENGTH_, pnetwork->network.ie_length-_FIXED_IE_LENGTH_, NULL, &wps_ielen))
662 return true;
663 else
664 return false;
665
666 }
667 if (adapter->registrypriv.wifi_spec == 1) { /* for correct flow of 8021X to do.... */
668 u8 *p = NULL;
669 uint ie_len = 0;
670
671 if ((desired_encmode == Ndis802_11EncryptionDisabled) && (privacy != 0))
672 bselected = false;
673
674 if (psecuritypriv->ndisauthtype == Ndis802_11AuthModeWPA2PSK) {
675 p = rtw_get_ie(pnetwork->network.ies + _BEACON_IE_OFFSET_, WLAN_EID_RSN, &ie_len, (pnetwork->network.ie_length - _BEACON_IE_OFFSET_));
676 if (p && ie_len > 0)
677 bselected = true;
678 else
679 bselected = false;
680 }
681 }
682
683 if ((desired_encmode != Ndis802_11EncryptionDisabled) && (privacy == 0))
684 bselected = false;
685
686 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) {
687 if (pnetwork->network.infrastructure_mode != pmlmepriv->cur_network.network.infrastructure_mode)
688 bselected = false;
689 }
690
691 return bselected;
692 }
693
694 /* TODO: Perry : For Power Management */
rtw_atimdone_event_callback(struct adapter * adapter,u8 * pbuf)695 void rtw_atimdone_event_callback(struct adapter *adapter, u8 *pbuf)
696 {
697 }
698
rtw_survey_event_callback(struct adapter * adapter,u8 * pbuf)699 void rtw_survey_event_callback(struct adapter *adapter, u8 *pbuf)
700 {
701 u32 len;
702 struct wlan_bssid_ex *pnetwork;
703 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
704
705 pnetwork = (struct wlan_bssid_ex *)pbuf;
706
707 len = get_wlan_bssid_ex_sz(pnetwork);
708 if (len > (sizeof(struct wlan_bssid_ex)))
709 return;
710
711 spin_lock_bh(&pmlmepriv->lock);
712
713 /* update IBSS_network 's timestamp */
714 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) == true) {
715 if (!memcmp(&(pmlmepriv->cur_network.network.mac_address), pnetwork->mac_address, ETH_ALEN)) {
716 struct wlan_network *ibss_wlan = NULL;
717
718 memcpy(pmlmepriv->cur_network.network.ies, pnetwork->ies, 8);
719 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
720 ibss_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->mac_address);
721 if (ibss_wlan) {
722 memcpy(ibss_wlan->network.ies, pnetwork->ies, 8);
723 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
724 goto exit;
725 }
726 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
727 }
728 }
729
730 /* lock pmlmepriv->lock when you accessing network_q */
731 if ((check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) == false) {
732 if (pnetwork->ssid.ssid[0] == 0)
733 pnetwork->ssid.ssid_length = 0;
734 rtw_add_network(adapter, pnetwork);
735 }
736
737 exit:
738
739 spin_unlock_bh(&pmlmepriv->lock);
740 }
741
rtw_surveydone_event_callback(struct adapter * adapter,u8 * pbuf)742 void rtw_surveydone_event_callback(struct adapter *adapter, u8 *pbuf)
743 {
744 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
745
746 spin_lock_bh(&pmlmepriv->lock);
747 if (pmlmepriv->wps_probe_req_ie) {
748 pmlmepriv->wps_probe_req_ie_len = 0;
749 kfree(pmlmepriv->wps_probe_req_ie);
750 pmlmepriv->wps_probe_req_ie = NULL;
751 }
752
753 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
754 spin_unlock_bh(&pmlmepriv->lock);
755 del_timer_sync(&pmlmepriv->scan_to_timer);
756 spin_lock_bh(&pmlmepriv->lock);
757 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
758 }
759
760 rtw_set_signal_stat_timer(&adapter->recvpriv);
761
762 if (pmlmepriv->to_join) {
763 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true)) {
764 if (check_fwstate(pmlmepriv, _FW_LINKED) == false) {
765 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
766
767 if (rtw_select_and_join_from_scanned_queue(pmlmepriv) == _SUCCESS) {
768 _set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
769 } else {
770 u8 ret = _SUCCESS;
771 struct wlan_bssid_ex *pdev_network = &(adapter->registrypriv.dev_network);
772 u8 *pibss = adapter->registrypriv.dev_network.mac_address;
773
774 /* pmlmepriv->fw_state ^= _FW_UNDER_SURVEY;because don't set assoc_timer */
775 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
776
777 memcpy(&pdev_network->ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
778
779 rtw_update_registrypriv_dev_network(adapter);
780 rtw_generate_random_ibss(pibss);
781
782 pmlmepriv->fw_state = WIFI_ADHOC_MASTER_STATE;
783
784 pmlmepriv->to_join = false;
785
786 ret = rtw_createbss_cmd(adapter);
787 if (ret != _SUCCESS)
788 goto unlock;
789 }
790 }
791 } else {
792 int s_ret;
793
794 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
795 pmlmepriv->to_join = false;
796 s_ret = rtw_select_and_join_from_scanned_queue(pmlmepriv);
797 if (s_ret == _SUCCESS) {
798 _set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
799 } else if (s_ret == 2) {/* there is no need to wait for join */
800 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
801 rtw_indicate_connect(adapter);
802 } else {
803 if (rtw_to_roam(adapter) != 0) {
804 if (rtw_dec_to_roam(adapter) == 0
805 || _SUCCESS != rtw_sitesurvey_cmd(adapter, &pmlmepriv->assoc_ssid, 1, NULL, 0)
806 ) {
807 rtw_set_to_roam(adapter, 0);
808 rtw_free_assoc_resources(adapter, 1);
809 rtw_indicate_disconnect(adapter);
810 } else {
811 pmlmepriv->to_join = true;
812 }
813 } else
814 rtw_indicate_disconnect(adapter);
815
816 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
817 }
818 }
819 } else {
820 if (rtw_chk_roam_flags(adapter, RTW_ROAM_ACTIVE)) {
821 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)
822 && check_fwstate(pmlmepriv, _FW_LINKED)) {
823 if (rtw_select_roaming_candidate(pmlmepriv) == _SUCCESS) {
824 receive_disconnect(adapter, pmlmepriv->cur_network.network.mac_address
825 , WLAN_REASON_ACTIVE_ROAM);
826 }
827 }
828 }
829 }
830
831 unlock:
832 spin_unlock_bh(&pmlmepriv->lock);
833
834 rtw_os_xmit_schedule(adapter);
835
836 rtw_cfg80211_surveydone_event_callback(adapter);
837
838 rtw_indicate_scan_done(adapter, false);
839 }
840
rtw_dummy_event_callback(struct adapter * adapter,u8 * pbuf)841 void rtw_dummy_event_callback(struct adapter *adapter, u8 *pbuf)
842 {
843 }
844
rtw_fwdbg_event_callback(struct adapter * adapter,u8 * pbuf)845 void rtw_fwdbg_event_callback(struct adapter *adapter, u8 *pbuf)
846 {
847 }
848
free_scanqueue(struct mlme_priv * pmlmepriv)849 static void free_scanqueue(struct mlme_priv *pmlmepriv)
850 {
851 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
852 struct __queue *scan_queue = &pmlmepriv->scanned_queue;
853 struct list_head *plist, *phead, *ptemp;
854
855 spin_lock_bh(&scan_queue->lock);
856 spin_lock_bh(&free_queue->lock);
857
858 phead = get_list_head(scan_queue);
859 plist = get_next(phead);
860
861 while (plist != phead) {
862 ptemp = get_next(plist);
863 list_del_init(plist);
864 list_add_tail(plist, &free_queue->queue);
865 plist = ptemp;
866 pmlmepriv->num_of_scanned--;
867 }
868
869 spin_unlock_bh(&free_queue->lock);
870 spin_unlock_bh(&scan_queue->lock);
871 }
872
rtw_reset_rx_info(struct debug_priv * pdbgpriv)873 static void rtw_reset_rx_info(struct debug_priv *pdbgpriv)
874 {
875 pdbgpriv->dbg_rx_ampdu_drop_count = 0;
876 pdbgpriv->dbg_rx_ampdu_forced_indicate_count = 0;
877 pdbgpriv->dbg_rx_ampdu_loss_count = 0;
878 pdbgpriv->dbg_rx_dup_mgt_frame_drop_count = 0;
879 pdbgpriv->dbg_rx_ampdu_window_shift_cnt = 0;
880 }
881
find_network(struct adapter * adapter)882 static void find_network(struct adapter *adapter)
883 {
884 struct wlan_network *pwlan = NULL;
885 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
886 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
887
888 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.mac_address);
889 if (pwlan)
890 pwlan->fixed = false;
891
892 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) &&
893 (adapter->stapriv.asoc_sta_count == 1))
894 rtw_free_network_nolock(adapter, pwlan);
895 }
896
897 /*
898 *rtw_free_assoc_resources: the caller has to lock pmlmepriv->lock
899 */
rtw_free_assoc_resources(struct adapter * adapter,int lock_scanned_queue)900 void rtw_free_assoc_resources(struct adapter *adapter, int lock_scanned_queue)
901 {
902 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
903 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
904 struct dvobj_priv *psdpriv = adapter->dvobj;
905 struct debug_priv *pdbgpriv = &psdpriv->drv_dbg;
906
907 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE|WIFI_AP_STATE)) {
908 struct sta_info *psta;
909
910 psta = rtw_get_stainfo(&adapter->stapriv, tgt_network->network.mac_address);
911 rtw_free_stainfo(adapter, psta);
912 }
913
914 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE|WIFI_ADHOC_MASTER_STATE|WIFI_AP_STATE)) {
915 struct sta_info *psta;
916
917 rtw_free_all_stainfo(adapter);
918
919 psta = rtw_get_bcmc_stainfo(adapter);
920 rtw_free_stainfo(adapter, psta);
921
922 rtw_init_bcmc_stainfo(adapter);
923 }
924
925 find_network(adapter);
926
927 if (lock_scanned_queue)
928 adapter->securitypriv.key_mask = 0;
929
930 rtw_reset_rx_info(pdbgpriv);
931 }
932
933 /*
934 *rtw_indicate_connect: the caller has to lock pmlmepriv->lock
935 */
rtw_indicate_connect(struct adapter * padapter)936 void rtw_indicate_connect(struct adapter *padapter)
937 {
938 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
939
940 pmlmepriv->to_join = false;
941
942 if (!check_fwstate(&padapter->mlmepriv, _FW_LINKED)) {
943
944 set_fwstate(pmlmepriv, _FW_LINKED);
945
946 rtw_os_indicate_connect(padapter);
947 }
948
949 rtw_set_to_roam(padapter, 0);
950 rtw_set_scan_deny(padapter, 3000);
951
952 }
953
954 /*
955 *rtw_indicate_disconnect: the caller has to lock pmlmepriv->lock
956 */
rtw_indicate_disconnect(struct adapter * padapter)957 void rtw_indicate_disconnect(struct adapter *padapter)
958 {
959 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
960
961 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING|WIFI_UNDER_WPS);
962
963 if (rtw_to_roam(padapter) > 0)
964 _clr_fwstate_(pmlmepriv, _FW_LINKED);
965
966 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED)
967 || (rtw_to_roam(padapter) <= 0)
968 ) {
969 rtw_os_indicate_disconnect(padapter);
970
971 /* set ips_deny_time to avoid enter IPS before LPS leave */
972 rtw_set_ips_deny(padapter, 3000);
973
974 _clr_fwstate_(pmlmepriv, _FW_LINKED);
975
976 rtw_clear_scan_deny(padapter);
977 }
978
979 rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_DISCONNECT, 1);
980 }
981
rtw_indicate_scan_done(struct adapter * padapter,bool aborted)982 inline void rtw_indicate_scan_done(struct adapter *padapter, bool aborted)
983 {
984 rtw_os_indicate_scan_done(padapter, aborted);
985
986 if (is_primary_adapter(padapter) &&
987 (!adapter_to_pwrctl(padapter)->bInSuspend) &&
988 (!check_fwstate(&padapter->mlmepriv,
989 WIFI_ASOC_STATE|WIFI_UNDER_LINKING))) {
990 rtw_set_ips_deny(padapter, 0);
991 _set_timer(&padapter->mlmepriv.dynamic_chk_timer, 1);
992 }
993 }
994
rtw_scan_abort(struct adapter * adapter)995 void rtw_scan_abort(struct adapter *adapter)
996 {
997 unsigned long start;
998 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
999 struct mlme_ext_priv *pmlmeext = &(adapter->mlmeextpriv);
1000
1001 start = jiffies;
1002 pmlmeext->scan_abort = true;
1003 while (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)
1004 && jiffies_to_msecs(start) <= 200) {
1005
1006 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1007 break;
1008
1009 msleep(20);
1010 }
1011
1012 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY))
1013 rtw_indicate_scan_done(adapter, true);
1014
1015 pmlmeext->scan_abort = false;
1016 }
1017
rtw_joinbss_update_stainfo(struct adapter * padapter,struct wlan_network * pnetwork)1018 static struct sta_info *rtw_joinbss_update_stainfo(struct adapter *padapter, struct wlan_network *pnetwork)
1019 {
1020 int i;
1021 struct sta_info *bmc_sta, *psta = NULL;
1022 struct recv_reorder_ctrl *preorder_ctrl;
1023 struct sta_priv *pstapriv = &padapter->stapriv;
1024 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1025
1026 psta = rtw_get_stainfo(pstapriv, pnetwork->network.mac_address);
1027 if (!psta)
1028 psta = rtw_alloc_stainfo(pstapriv, pnetwork->network.mac_address);
1029
1030 if (psta) { /* update ptarget_sta */
1031
1032 psta->aid = pnetwork->join_res;
1033
1034 update_sta_info(padapter, psta);
1035
1036 /* update station supportRate */
1037 psta->bssratelen = rtw_get_rateset_len(pnetwork->network.supported_rates);
1038 memcpy(psta->bssrateset, pnetwork->network.supported_rates, psta->bssratelen);
1039 rtw_hal_update_sta_rate_mask(padapter, psta);
1040
1041 psta->wireless_mode = pmlmeext->cur_wireless_mode;
1042 psta->raid = networktype_to_raid_ex(padapter, psta);
1043
1044 /* sta mode */
1045 rtw_hal_set_odm_var(padapter, HAL_ODM_STA_INFO, psta, true);
1046
1047 /* security related */
1048 if (padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
1049 padapter->securitypriv.binstallGrpkey = false;
1050 padapter->securitypriv.busetkipkey = false;
1051 padapter->securitypriv.bgrpkey_handshake = false;
1052
1053 psta->ieee8021x_blocked = true;
1054 psta->dot118021XPrivacy = padapter->securitypriv.dot11PrivacyAlgrthm;
1055
1056 memset((u8 *)&psta->dot118021x_UncstKey, 0, sizeof(union Keytype));
1057
1058 memset((u8 *)&psta->dot11tkiprxmickey, 0, sizeof(union Keytype));
1059 memset((u8 *)&psta->dot11tkiptxmickey, 0, sizeof(union Keytype));
1060
1061 memset((u8 *)&psta->dot11txpn, 0, sizeof(union pn48));
1062 psta->dot11txpn.val = psta->dot11txpn.val + 1;
1063 memset((u8 *)&psta->dot11wtxpn, 0, sizeof(union pn48));
1064 memset((u8 *)&psta->dot11rxpn, 0, sizeof(union pn48));
1065 }
1066
1067 /* Commented by Albert 2012/07/21 */
1068 /* When doing the WPS, the wps_ie_len won't equal to 0 */
1069 /* And the Wi-Fi driver shouldn't allow the data packet to be transmitted. */
1070 if (padapter->securitypriv.wps_ie_len != 0) {
1071 psta->ieee8021x_blocked = true;
1072 padapter->securitypriv.wps_ie_len = 0;
1073 }
1074
1075 /* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info */
1076 /* if A-MPDU Rx is enabled, resetting rx_ordering_ctrl wstart_b(indicate_seq) to default value = 0xffff */
1077 /* todo: check if AP can send A-MPDU packets */
1078 for (i = 0; i < 16 ; i++) {
1079 /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
1080 preorder_ctrl = &psta->recvreorder_ctrl[i];
1081 preorder_ctrl->enable = false;
1082 preorder_ctrl->indicate_seq = 0xffff;
1083 preorder_ctrl->wend_b = 0xffff;
1084 preorder_ctrl->wsize_b = 64;/* max_ampdu_sz;ex. 32(kbytes) -> wsize_b =32 */
1085 }
1086
1087 bmc_sta = rtw_get_bcmc_stainfo(padapter);
1088 if (bmc_sta) {
1089 for (i = 0; i < 16 ; i++) {
1090 /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
1091 preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
1092 preorder_ctrl->enable = false;
1093 preorder_ctrl->indicate_seq = 0xffff;
1094 preorder_ctrl->wend_b = 0xffff;
1095 preorder_ctrl->wsize_b = 64;/* max_ampdu_sz;ex. 32(kbytes) -> wsize_b =32 */
1096 }
1097 }
1098 }
1099
1100 return psta;
1101
1102 }
1103
1104 /* pnetwork : returns from rtw_joinbss_event_callback */
1105 /* ptarget_wlan: found from scanned_queue */
rtw_joinbss_update_network(struct adapter * padapter,struct wlan_network * ptarget_wlan,struct wlan_network * pnetwork)1106 static void rtw_joinbss_update_network(struct adapter *padapter, struct wlan_network *ptarget_wlan, struct wlan_network *pnetwork)
1107 {
1108 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
1109 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
1110
1111 /* why not use ptarget_wlan?? */
1112 memcpy(&cur_network->network, &pnetwork->network, pnetwork->network.length);
1113 /* some ies in pnetwork is wrong, so we should use ptarget_wlan ies */
1114 cur_network->network.ie_length = ptarget_wlan->network.ie_length;
1115 memcpy(&cur_network->network.ies[0], &ptarget_wlan->network.ies[0], MAX_IE_SZ);
1116
1117 cur_network->aid = pnetwork->join_res;
1118
1119 rtw_set_signal_stat_timer(&padapter->recvpriv);
1120
1121 padapter->recvpriv.signal_strength = ptarget_wlan->network.phy_info.signal_strength;
1122 padapter->recvpriv.signal_qual = ptarget_wlan->network.phy_info.signal_quality;
1123 /* the ptarget_wlan->network.rssi is raw data, we use ptarget_wlan->network.phy_info.signal_strength instead (has scaled) */
1124 padapter->recvpriv.rssi = translate_percentage_to_dbm(ptarget_wlan->network.phy_info.signal_strength);
1125
1126 rtw_set_signal_stat_timer(&padapter->recvpriv);
1127
1128 /* update fw_state will clr _FW_UNDER_LINKING here indirectly */
1129 switch (pnetwork->network.infrastructure_mode) {
1130 case Ndis802_11Infrastructure:
1131
1132 if (pmlmepriv->fw_state&WIFI_UNDER_WPS)
1133 pmlmepriv->fw_state = WIFI_STATION_STATE|WIFI_UNDER_WPS;
1134 else
1135 pmlmepriv->fw_state = WIFI_STATION_STATE;
1136
1137 break;
1138 case Ndis802_11IBSS:
1139 pmlmepriv->fw_state = WIFI_ADHOC_STATE;
1140 break;
1141 default:
1142 pmlmepriv->fw_state = WIFI_NULL_STATE;
1143 break;
1144 }
1145
1146 rtw_update_protection(padapter, (cur_network->network.ies) + sizeof(struct ndis_802_11_fix_ie),
1147 (cur_network->network.ie_length));
1148
1149 rtw_update_ht_cap(padapter, cur_network->network.ies, cur_network->network.ie_length, (u8) cur_network->network.configuration.ds_config);
1150 }
1151
1152 /* Notes: the function could be > passive_level (the same context as Rx tasklet) */
1153 /* pnetwork : returns from rtw_joinbss_event_callback */
1154 /* ptarget_wlan: found from scanned_queue */
1155 /* if join_res > 0, for (fw_state ==WIFI_STATION_STATE), we check if "ptarget_sta" & "ptarget_wlan" exist. */
1156 /* if join_res > 0, for (fw_state ==WIFI_ADHOC_STATE), we only check if "ptarget_wlan" exist. */
1157 /* if join_res > 0, update "cur_network->network" from "pnetwork->network" if (ptarget_wlan != NULL). */
1158 /* */
1159 /* define REJOIN */
rtw_joinbss_event_prehandle(struct adapter * adapter,u8 * pbuf)1160 void rtw_joinbss_event_prehandle(struct adapter *adapter, u8 *pbuf)
1161 {
1162 static u8 __maybe_unused retry;
1163 struct sta_info *ptarget_sta = NULL, *pcur_sta = NULL;
1164 struct sta_priv *pstapriv = &adapter->stapriv;
1165 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1166 struct wlan_network *pnetwork = (struct wlan_network *)pbuf;
1167 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
1168 struct wlan_network *pcur_wlan = NULL, *ptarget_wlan = NULL;
1169 unsigned int the_same_macaddr = false;
1170
1171 rtw_get_encrypt_decrypt_from_registrypriv(adapter);
1172
1173 the_same_macaddr = !memcmp(pnetwork->network.mac_address, cur_network->network.mac_address, ETH_ALEN);
1174
1175 pnetwork->network.length = get_wlan_bssid_ex_sz(&pnetwork->network);
1176 if (pnetwork->network.length > sizeof(struct wlan_bssid_ex))
1177 return;
1178
1179 spin_lock_bh(&pmlmepriv->lock);
1180
1181 pmlmepriv->LinkDetectInfo.TrafficTransitionCount = 0;
1182 pmlmepriv->LinkDetectInfo.LowPowerTransitionCount = 0;
1183
1184 if (pnetwork->join_res > 0) {
1185 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1186 retry = 0;
1187 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
1188 /* s1. find ptarget_wlan */
1189 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1190 if (the_same_macaddr) {
1191 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.mac_address);
1192 } else {
1193 pcur_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.mac_address);
1194 if (pcur_wlan)
1195 pcur_wlan->fixed = false;
1196
1197 pcur_sta = rtw_get_stainfo(pstapriv, cur_network->network.mac_address);
1198 if (pcur_sta)
1199 rtw_free_stainfo(adapter, pcur_sta);
1200
1201 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->network.mac_address);
1202 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1203 if (ptarget_wlan)
1204 ptarget_wlan->fixed = true;
1205 }
1206 }
1207
1208 } else {
1209 ptarget_wlan = _rtw_find_same_network(&pmlmepriv->scanned_queue, pnetwork);
1210 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1211 if (ptarget_wlan)
1212 ptarget_wlan->fixed = true;
1213 }
1214 }
1215
1216 /* s2. update cur_network */
1217 if (ptarget_wlan) {
1218 rtw_joinbss_update_network(adapter, ptarget_wlan, pnetwork);
1219 } else {
1220 netdev_dbg(adapter->pnetdev,
1221 "Can't find ptarget_wlan when joinbss_event callback\n");
1222 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
1223 goto ignore_joinbss_callback;
1224 }
1225
1226 /* s3. find ptarget_sta & update ptarget_sta after update cur_network only for station mode */
1227 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1228 ptarget_sta = rtw_joinbss_update_stainfo(adapter, pnetwork);
1229 if (!ptarget_sta) {
1230 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
1231 goto ignore_joinbss_callback;
1232 }
1233 }
1234
1235 /* s4. indicate connect */
1236 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1237 pmlmepriv->cur_network_scanned = ptarget_wlan;
1238 rtw_indicate_connect(adapter);
1239 }
1240
1241 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1242
1243 spin_unlock_bh(&pmlmepriv->lock);
1244 /* s5. Cancel assoc_timer */
1245 del_timer_sync(&pmlmepriv->assoc_timer);
1246 spin_lock_bh(&pmlmepriv->lock);
1247 } else {
1248 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
1249 }
1250 } else if (pnetwork->join_res == -4) {
1251 rtw_reset_securitypriv(adapter);
1252 _set_timer(&pmlmepriv->assoc_timer, 1);
1253
1254 /* rtw_free_assoc_resources(adapter, 1); */
1255
1256 if ((check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) == true)
1257 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1258
1259 } else {/* if join_res < 0 (join fails), then try again */
1260
1261 #ifdef REJOIN
1262 res = _FAIL;
1263 if (retry < 2)
1264 res = rtw_select_and_join_from_scanned_queue(pmlmepriv);
1265
1266 if (res == _SUCCESS) {
1267 /* extend time of assoc_timer */
1268 _set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
1269 retry++;
1270 } else if (res == 2) {/* there is no need to wait for join */
1271 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1272 rtw_indicate_connect(adapter);
1273 } else {
1274 #endif
1275
1276 _set_timer(&pmlmepriv->assoc_timer, 1);
1277 /* rtw_free_assoc_resources(adapter, 1); */
1278 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1279
1280 #ifdef REJOIN
1281 retry = 0;
1282 }
1283 #endif
1284 }
1285
1286 ignore_joinbss_callback:
1287
1288 spin_unlock_bh(&pmlmepriv->lock);
1289 }
1290
rtw_joinbss_event_callback(struct adapter * adapter,u8 * pbuf)1291 void rtw_joinbss_event_callback(struct adapter *adapter, u8 *pbuf)
1292 {
1293 struct wlan_network *pnetwork = (struct wlan_network *)pbuf;
1294
1295 mlmeext_joinbss_event_callback(adapter, pnetwork->join_res);
1296
1297 rtw_os_xmit_schedule(adapter);
1298 }
1299
1300 /* FOR STA, AP , AD-HOC mode */
rtw_sta_media_status_rpt(struct adapter * adapter,struct sta_info * psta,u32 mstatus)1301 void rtw_sta_media_status_rpt(struct adapter *adapter, struct sta_info *psta, u32 mstatus)
1302 {
1303 u16 media_status_rpt;
1304
1305 if (!psta)
1306 return;
1307
1308 media_status_rpt = (u16)((psta->mac_id<<8)|mstatus); /* MACID|OPMODE:1 connect */
1309 rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status_rpt);
1310 }
1311
rtw_stassoc_event_callback(struct adapter * adapter,u8 * pbuf)1312 void rtw_stassoc_event_callback(struct adapter *adapter, u8 *pbuf)
1313 {
1314 struct sta_info *psta;
1315 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1316 struct stassoc_event *pstassoc = (struct stassoc_event *)pbuf;
1317 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
1318 struct wlan_network *ptarget_wlan = NULL;
1319
1320 if (rtw_access_ctrl(adapter, pstassoc->macaddr) == false)
1321 return;
1322
1323 if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
1324 psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1325 if (psta) {
1326 u8 *passoc_req = NULL;
1327 u32 assoc_req_len = 0;
1328
1329 rtw_sta_media_status_rpt(adapter, psta, 1);
1330
1331 ap_sta_info_defer_update(adapter, psta);
1332
1333 /* report to upper layer */
1334 spin_lock_bh(&psta->lock);
1335 if (psta->passoc_req && psta->assoc_req_len > 0) {
1336 passoc_req = rtw_zmalloc(psta->assoc_req_len);
1337 if (passoc_req) {
1338 assoc_req_len = psta->assoc_req_len;
1339 memcpy(passoc_req, psta->passoc_req, assoc_req_len);
1340
1341 kfree(psta->passoc_req);
1342 psta->passoc_req = NULL;
1343 psta->assoc_req_len = 0;
1344 }
1345 }
1346 spin_unlock_bh(&psta->lock);
1347
1348 if (passoc_req && assoc_req_len > 0) {
1349 rtw_cfg80211_indicate_sta_assoc(adapter, passoc_req, assoc_req_len);
1350
1351 kfree(passoc_req);
1352 }
1353 }
1354 return;
1355 }
1356
1357 /* for AD-HOC mode */
1358 psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1359 if (psta) {
1360 /* the sta have been in sta_info_queue => do nothing */
1361
1362 return; /* between drv has received this event before and fw have not yet to set key to CAM_ENTRY) */
1363 }
1364
1365 psta = rtw_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
1366 if (!psta)
1367 return;
1368
1369 /* to do : init sta_info variable */
1370 psta->qos_option = 0;
1371 psta->mac_id = (uint)pstassoc->cam_id;
1372 /* psta->aid = (uint)pstassoc->cam_id; */
1373
1374 /* for ad-hoc mode */
1375 rtw_hal_set_odm_var(adapter, HAL_ODM_STA_INFO, psta, true);
1376
1377 rtw_sta_media_status_rpt(adapter, psta, 1);
1378
1379 if (adapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X)
1380 psta->dot118021XPrivacy = adapter->securitypriv.dot11PrivacyAlgrthm;
1381
1382 psta->ieee8021x_blocked = false;
1383
1384 spin_lock_bh(&pmlmepriv->lock);
1385
1386 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true) ||
1387 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true)) {
1388 if (adapter->stapriv.asoc_sta_count == 2) {
1389 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1390 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.mac_address);
1391 pmlmepriv->cur_network_scanned = ptarget_wlan;
1392 if (ptarget_wlan)
1393 ptarget_wlan->fixed = true;
1394 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
1395 /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
1396 rtw_indicate_connect(adapter);
1397 }
1398 }
1399
1400 spin_unlock_bh(&pmlmepriv->lock);
1401
1402 mlmeext_sta_add_event_callback(adapter, psta);
1403 }
1404
rtw_stadel_event_callback(struct adapter * adapter,u8 * pbuf)1405 void rtw_stadel_event_callback(struct adapter *adapter, u8 *pbuf)
1406 {
1407 int mac_id = (-1);
1408 struct sta_info *psta;
1409 struct wlan_network *pwlan = NULL;
1410 struct wlan_bssid_ex *pdev_network = NULL;
1411 u8 *pibss = NULL;
1412 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1413 struct stadel_event *pstadel = (struct stadel_event *)pbuf;
1414 struct wlan_network *tgt_network = &(pmlmepriv->cur_network);
1415 struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
1416 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1417
1418 psta = rtw_get_stainfo(&adapter->stapriv, pstadel->macaddr);
1419 if (psta)
1420 mac_id = psta->mac_id;
1421 else
1422 mac_id = pstadel->mac_id;
1423
1424 if (mac_id >= 0) {
1425 u16 media_status;
1426
1427 media_status = (mac_id<<8)|0; /* MACID|OPMODE:0 means disconnect */
1428 /* for STA, AP, ADHOC mode, report disconnect stauts to FW */
1429 rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status);
1430 }
1431
1432 /* if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) */
1433 if ((pmlmeinfo->state&0x03) == WIFI_FW_AP_STATE)
1434 return;
1435
1436 mlmeext_sta_del_event_callback(adapter);
1437
1438 spin_lock_bh(&pmlmepriv->lock);
1439
1440 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
1441 u16 reason = *((unsigned short *)(pstadel->rsvd));
1442 bool roam = false;
1443 struct wlan_network *roam_target = NULL;
1444
1445 if (adapter->registrypriv.wifi_spec == 1) {
1446 roam = false;
1447 } else if (reason == WLAN_REASON_EXPIRATION_CHK && rtw_chk_roam_flags(adapter, RTW_ROAM_ON_EXPIRED)) {
1448 roam = true;
1449 } else if (reason == WLAN_REASON_ACTIVE_ROAM && rtw_chk_roam_flags(adapter, RTW_ROAM_ACTIVE)) {
1450 roam = true;
1451 roam_target = pmlmepriv->roam_network;
1452 }
1453
1454 if (roam) {
1455 if (rtw_to_roam(adapter) > 0)
1456 rtw_dec_to_roam(adapter); /* this stadel_event is caused by roaming, decrease to_roam */
1457 else if (rtw_to_roam(adapter) == 0)
1458 rtw_set_to_roam(adapter, adapter->registrypriv.max_roaming_times);
1459 } else {
1460 rtw_set_to_roam(adapter, 0);
1461 }
1462
1463 rtw_free_uc_swdec_pending_queue(adapter);
1464
1465 rtw_free_assoc_resources(adapter, 1);
1466 rtw_indicate_disconnect(adapter);
1467
1468 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1469 /* remove the network entry in scanned_queue */
1470 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.mac_address);
1471 if (pwlan) {
1472 pwlan->fixed = false;
1473 rtw_free_network_nolock(adapter, pwlan);
1474 }
1475 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
1476
1477 _rtw_roaming(adapter, roam_target);
1478 }
1479
1480 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
1481 check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1482
1483 rtw_free_stainfo(adapter, psta);
1484
1485 if (adapter->stapriv.asoc_sta_count == 1) {/* a sta + bc/mc_stainfo (not Ibss_stainfo) */
1486 u8 ret = _SUCCESS;
1487 /* rtw_indicate_disconnect(adapter);removed@20091105 */
1488 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1489 /* free old ibss network */
1490 /* pwlan = rtw_find_network(&pmlmepriv->scanned_queue, pstadel->macaddr); */
1491 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.mac_address);
1492 if (pwlan) {
1493 pwlan->fixed = false;
1494 rtw_free_network_nolock(adapter, pwlan);
1495 }
1496 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
1497 /* re-create ibss */
1498 pdev_network = &(adapter->registrypriv.dev_network);
1499 pibss = adapter->registrypriv.dev_network.mac_address;
1500
1501 memcpy(pdev_network, &tgt_network->network, get_wlan_bssid_ex_sz(&tgt_network->network));
1502
1503 memcpy(&pdev_network->ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
1504
1505 rtw_update_registrypriv_dev_network(adapter);
1506
1507 rtw_generate_random_ibss(pibss);
1508
1509 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1510 set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
1511 _clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
1512 }
1513
1514 ret = rtw_createbss_cmd(adapter);
1515 if (ret != _SUCCESS)
1516 goto unlock;
1517 }
1518
1519 }
1520
1521 unlock:
1522 spin_unlock_bh(&pmlmepriv->lock);
1523 }
1524
rtw_cpwm_event_callback(struct adapter * padapter,u8 * pbuf)1525 void rtw_cpwm_event_callback(struct adapter *padapter, u8 *pbuf)
1526 {
1527 struct reportpwrstate_parm *preportpwrstate;
1528
1529 preportpwrstate = (struct reportpwrstate_parm *)pbuf;
1530 preportpwrstate->state |= (u8)(adapter_to_pwrctl(padapter)->cpwm_tog + 0x80);
1531 cpwm_int_hdl(padapter, preportpwrstate);
1532 }
1533
rtw_wmm_event_callback(struct adapter * padapter,u8 * pbuf)1534 void rtw_wmm_event_callback(struct adapter *padapter, u8 *pbuf)
1535 {
1536 WMMOnAssocRsp(padapter);
1537 }
1538
1539 /*
1540 * _rtw_join_timeout_handler - Timeout/failure handler for CMD JoinBss
1541 * @adapter: pointer to struct adapter structure
1542 */
_rtw_join_timeout_handler(struct timer_list * t)1543 void _rtw_join_timeout_handler(struct timer_list *t)
1544 {
1545 struct adapter *adapter = from_timer(adapter, t,
1546 mlmepriv.assoc_timer);
1547 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1548
1549 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1550 return;
1551
1552 spin_lock_bh(&pmlmepriv->lock);
1553
1554 if (rtw_to_roam(adapter) > 0) { /* join timeout caused by roaming */
1555 while (1) {
1556 rtw_dec_to_roam(adapter);
1557 if (rtw_to_roam(adapter) != 0) { /* try another */
1558 int do_join_r;
1559
1560 do_join_r = rtw_do_join(adapter);
1561 if (do_join_r != _SUCCESS) {
1562 continue;
1563 }
1564 break;
1565 } else {
1566 rtw_indicate_disconnect(adapter);
1567 break;
1568 }
1569 }
1570
1571 } else {
1572 rtw_indicate_disconnect(adapter);
1573 free_scanqueue(pmlmepriv);/* */
1574
1575 /* indicate disconnect for the case that join_timeout and check_fwstate != FW_LINKED */
1576 rtw_cfg80211_indicate_disconnect(adapter);
1577
1578 }
1579
1580 spin_unlock_bh(&pmlmepriv->lock);
1581 }
1582
1583 /*
1584 * rtw_scan_timeout_handler - Timeout/Failure handler for CMD SiteSurvey
1585 * @adapter: pointer to struct adapter structure
1586 */
rtw_scan_timeout_handler(struct timer_list * t)1587 void rtw_scan_timeout_handler(struct timer_list *t)
1588 {
1589 struct adapter *adapter = from_timer(adapter, t,
1590 mlmepriv.scan_to_timer);
1591 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1592
1593 spin_lock_bh(&pmlmepriv->lock);
1594
1595 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
1596
1597 spin_unlock_bh(&pmlmepriv->lock);
1598
1599 rtw_indicate_scan_done(adapter, true);
1600 }
1601
rtw_mlme_reset_auto_scan_int(struct adapter * adapter)1602 void rtw_mlme_reset_auto_scan_int(struct adapter *adapter)
1603 {
1604 struct mlme_priv *mlme = &adapter->mlmepriv;
1605 struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
1606 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1607
1608 if (pmlmeinfo->VHT_enable) /* disable auto scan when connect to 11AC AP */
1609 mlme->auto_scan_int_ms = 0;
1610 else if (adapter->registrypriv.wifi_spec && is_client_associated_to_ap(adapter) == true)
1611 mlme->auto_scan_int_ms = 60*1000;
1612 else if (rtw_chk_roam_flags(adapter, RTW_ROAM_ACTIVE)) {
1613 if (check_fwstate(mlme, WIFI_STATION_STATE) && check_fwstate(mlme, _FW_LINKED))
1614 mlme->auto_scan_int_ms = mlme->roam_scan_int_ms;
1615 } else
1616 mlme->auto_scan_int_ms = 0; /* disabled */
1617 }
1618
rtw_auto_scan_handler(struct adapter * padapter)1619 static void rtw_auto_scan_handler(struct adapter *padapter)
1620 {
1621 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1622
1623 rtw_mlme_reset_auto_scan_int(padapter);
1624
1625 if (pmlmepriv->auto_scan_int_ms != 0
1626 && jiffies_to_msecs(jiffies - pmlmepriv->scan_start_time) > pmlmepriv->auto_scan_int_ms) {
1627
1628 if (!padapter->registrypriv.wifi_spec) {
1629 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY | _FW_UNDER_LINKING) == true)
1630 goto exit;
1631
1632 if (pmlmepriv->LinkDetectInfo.bBusyTraffic)
1633 goto exit;
1634 }
1635
1636 rtw_set_802_11_bssid_list_scan(padapter, NULL, 0);
1637 }
1638
1639 exit:
1640 return;
1641 }
1642
rtw_dynamic_check_timer_handler(struct adapter * adapter)1643 void rtw_dynamic_check_timer_handler(struct adapter *adapter)
1644 {
1645 if (!adapter)
1646 return;
1647
1648 if (!adapter->hw_init_completed)
1649 return;
1650
1651 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1652 return;
1653
1654 if (adapter->net_closed)
1655 return;
1656
1657 if ((adapter_to_pwrctl(adapter)->fw_current_in_ps_mode)
1658 && !(hal_btcoex_IsBtControlLps(adapter))
1659 ) {
1660 u8 bEnterPS;
1661
1662 linked_status_chk(adapter);
1663
1664 bEnterPS = traffic_status_watchdog(adapter, 1);
1665 if (bEnterPS) {
1666 /* rtw_lps_ctrl_wk_cmd(adapter, LPS_CTRL_ENTER, 1); */
1667 rtw_hal_dm_watchdog_in_lps(adapter);
1668 } else {
1669 /* call rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_LEAVE, 1) in traffic_status_watchdog() */
1670 }
1671
1672 } else {
1673 if (is_primary_adapter(adapter))
1674 rtw_dynamic_chk_wk_cmd(adapter);
1675 }
1676
1677 /* auto site survey */
1678 rtw_auto_scan_handler(adapter);
1679 }
1680
rtw_is_scan_deny(struct adapter * adapter)1681 inline bool rtw_is_scan_deny(struct adapter *adapter)
1682 {
1683 struct mlme_priv *mlmepriv = &adapter->mlmepriv;
1684
1685 return (atomic_read(&mlmepriv->set_scan_deny) != 0) ? true : false;
1686 }
1687
rtw_clear_scan_deny(struct adapter * adapter)1688 inline void rtw_clear_scan_deny(struct adapter *adapter)
1689 {
1690 struct mlme_priv *mlmepriv = &adapter->mlmepriv;
1691
1692 atomic_set(&mlmepriv->set_scan_deny, 0);
1693 }
1694
rtw_set_scan_deny(struct adapter * adapter,u32 ms)1695 void rtw_set_scan_deny(struct adapter *adapter, u32 ms)
1696 {
1697 struct mlme_priv *mlmepriv = &adapter->mlmepriv;
1698
1699 atomic_set(&mlmepriv->set_scan_deny, 1);
1700 _set_timer(&mlmepriv->set_scan_deny_timer, ms);
1701 }
1702
1703 /*
1704 * Select a new roaming candidate from the original @param candidate and @param competitor
1705 * @return true: candidate is updated
1706 * @return false: candidate is not updated
1707 */
rtw_check_roaming_candidate(struct mlme_priv * mlme,struct wlan_network ** candidate,struct wlan_network * competitor)1708 static int rtw_check_roaming_candidate(struct mlme_priv *mlme
1709 , struct wlan_network **candidate, struct wlan_network *competitor)
1710 {
1711 int updated = false;
1712 struct adapter *adapter = container_of(mlme, struct adapter, mlmepriv);
1713
1714 if (is_same_ess(&competitor->network, &mlme->cur_network.network) == false)
1715 goto exit;
1716
1717 if (rtw_is_desired_network(adapter, competitor) == false)
1718 goto exit;
1719
1720 /* got specific addr to roam */
1721 if (!is_zero_mac_addr(mlme->roam_tgt_addr)) {
1722 if (!memcmp(mlme->roam_tgt_addr, competitor->network.mac_address, ETH_ALEN))
1723 goto update;
1724 else
1725 goto exit;
1726 }
1727 if (jiffies_to_msecs(jiffies - competitor->last_scanned) >= mlme->roam_scanr_exp_ms)
1728 goto exit;
1729
1730 if (competitor->network.rssi - mlme->cur_network_scanned->network.rssi < mlme->roam_rssi_diff_th)
1731 goto exit;
1732
1733 if (*candidate && (*candidate)->network.rssi >= competitor->network.rssi)
1734 goto exit;
1735
1736 update:
1737 *candidate = competitor;
1738 updated = true;
1739
1740 exit:
1741 return updated;
1742 }
1743
rtw_select_roaming_candidate(struct mlme_priv * mlme)1744 int rtw_select_roaming_candidate(struct mlme_priv *mlme)
1745 {
1746 int ret = _FAIL;
1747 struct list_head *phead;
1748 struct __queue *queue = &(mlme->scanned_queue);
1749 struct wlan_network *pnetwork = NULL;
1750 struct wlan_network *candidate = NULL;
1751
1752 if (!mlme->cur_network_scanned) {
1753 rtw_warn_on(1);
1754 return ret;
1755 }
1756
1757 spin_lock_bh(&(mlme->scanned_queue.lock));
1758 phead = get_list_head(queue);
1759
1760 list_for_each(mlme->pscanned, phead) {
1761
1762 pnetwork = list_entry(mlme->pscanned, struct wlan_network,
1763 list);
1764
1765 rtw_check_roaming_candidate(mlme, &candidate, pnetwork);
1766
1767 }
1768
1769 if (!candidate) {
1770 ret = _FAIL;
1771 goto exit;
1772 } else {
1773 mlme->roam_network = candidate;
1774
1775 if (!memcmp(candidate->network.mac_address, mlme->roam_tgt_addr, ETH_ALEN))
1776 eth_zero_addr(mlme->roam_tgt_addr);
1777 }
1778
1779 ret = _SUCCESS;
1780 exit:
1781 spin_unlock_bh(&(mlme->scanned_queue.lock));
1782
1783 return ret;
1784 }
1785
1786 /*
1787 * Select a new join candidate from the original @param candidate and @param competitor
1788 * @return true: candidate is updated
1789 * @return false: candidate is not updated
1790 */
rtw_check_join_candidate(struct mlme_priv * mlme,struct wlan_network ** candidate,struct wlan_network * competitor)1791 static int rtw_check_join_candidate(struct mlme_priv *mlme
1792 , struct wlan_network **candidate, struct wlan_network *competitor)
1793 {
1794 int updated = false;
1795 struct adapter *adapter = container_of(mlme, struct adapter, mlmepriv);
1796
1797 /* check bssid, if needed */
1798 if (mlme->assoc_by_bssid) {
1799 if (memcmp(competitor->network.mac_address, mlme->assoc_bssid, ETH_ALEN))
1800 goto exit;
1801 }
1802
1803 /* check ssid, if needed */
1804 if (mlme->assoc_ssid.ssid[0] && mlme->assoc_ssid.ssid_length) {
1805 if (competitor->network.ssid.ssid_length != mlme->assoc_ssid.ssid_length
1806 || memcmp(competitor->network.ssid.ssid, mlme->assoc_ssid.ssid, mlme->assoc_ssid.ssid_length)
1807 )
1808 goto exit;
1809 }
1810
1811 if (rtw_is_desired_network(adapter, competitor) == false)
1812 goto exit;
1813
1814 if (rtw_to_roam(adapter) > 0) {
1815 if (jiffies_to_msecs(jiffies - competitor->last_scanned) >= mlme->roam_scanr_exp_ms
1816 || is_same_ess(&competitor->network, &mlme->cur_network.network) == false
1817 )
1818 goto exit;
1819 }
1820
1821 if (!*candidate || (*candidate)->network.rssi < competitor->network.rssi) {
1822 *candidate = competitor;
1823 updated = true;
1824 }
1825
1826 exit:
1827 return updated;
1828 }
1829
1830 /*
1831 Calling context:
1832 The caller of the sub-routine will be in critical section...
1833 The caller must hold the following spinlock
1834 pmlmepriv->lock
1835 */
1836
rtw_select_and_join_from_scanned_queue(struct mlme_priv * pmlmepriv)1837 int rtw_select_and_join_from_scanned_queue(struct mlme_priv *pmlmepriv)
1838 {
1839 int ret;
1840 struct list_head *phead;
1841 struct adapter *adapter;
1842 struct __queue *queue = &(pmlmepriv->scanned_queue);
1843 struct wlan_network *pnetwork = NULL;
1844 struct wlan_network *candidate = NULL;
1845
1846 adapter = (struct adapter *)pmlmepriv->nic_hdl;
1847
1848 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1849
1850 if (pmlmepriv->roam_network) {
1851 candidate = pmlmepriv->roam_network;
1852 pmlmepriv->roam_network = NULL;
1853 goto candidate_exist;
1854 }
1855
1856 phead = get_list_head(queue);
1857 list_for_each(pmlmepriv->pscanned, phead) {
1858
1859 pnetwork = list_entry(pmlmepriv->pscanned,
1860 struct wlan_network, list);
1861
1862 rtw_check_join_candidate(pmlmepriv, &candidate, pnetwork);
1863
1864 }
1865
1866 if (!candidate) {
1867 ret = _FAIL;
1868 goto exit;
1869 } else {
1870 goto candidate_exist;
1871 }
1872
1873 candidate_exist:
1874
1875 /* check for situation of _FW_LINKED */
1876 if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
1877 rtw_disassoc_cmd(adapter, 0, true);
1878 rtw_indicate_disconnect(adapter);
1879 rtw_free_assoc_resources(adapter, 0);
1880 }
1881
1882 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
1883 ret = rtw_joinbss_cmd(adapter, candidate);
1884
1885 exit:
1886 spin_unlock_bh(&(pmlmepriv->scanned_queue.lock));
1887 return ret;
1888 }
1889
rtw_set_auth(struct adapter * adapter,struct security_priv * psecuritypriv)1890 signed int rtw_set_auth(struct adapter *adapter, struct security_priv *psecuritypriv)
1891 {
1892 struct cmd_obj *pcmd;
1893 struct setauth_parm *psetauthparm;
1894 struct cmd_priv *pcmdpriv = &(adapter->cmdpriv);
1895 signed int res = _SUCCESS;
1896
1897 pcmd = rtw_zmalloc(sizeof(struct cmd_obj));
1898 if (!pcmd) {
1899 res = _FAIL; /* try again */
1900 goto exit;
1901 }
1902
1903 psetauthparm = rtw_zmalloc(sizeof(struct setauth_parm));
1904 if (!psetauthparm) {
1905 kfree(pcmd);
1906 res = _FAIL;
1907 goto exit;
1908 }
1909
1910 psetauthparm->mode = (unsigned char)psecuritypriv->dot11AuthAlgrthm;
1911
1912 pcmd->cmdcode = _SetAuth_CMD_;
1913 pcmd->parmbuf = (unsigned char *)psetauthparm;
1914 pcmd->cmdsz = (sizeof(struct setauth_parm));
1915 pcmd->rsp = NULL;
1916 pcmd->rspsz = 0;
1917
1918 INIT_LIST_HEAD(&pcmd->list);
1919
1920 res = rtw_enqueue_cmd(pcmdpriv, pcmd);
1921
1922 exit:
1923 return res;
1924 }
1925
rtw_set_key(struct adapter * adapter,struct security_priv * psecuritypriv,signed int keyid,u8 set_tx,bool enqueue)1926 signed int rtw_set_key(struct adapter *adapter, struct security_priv *psecuritypriv, signed int keyid, u8 set_tx, bool enqueue)
1927 {
1928 u8 keylen;
1929 struct cmd_obj *pcmd;
1930 struct setkey_parm *psetkeyparm;
1931 struct cmd_priv *pcmdpriv = &(adapter->cmdpriv);
1932 signed int res = _SUCCESS;
1933
1934 psetkeyparm = rtw_zmalloc(sizeof(struct setkey_parm));
1935 if (!psetkeyparm) {
1936 res = _FAIL;
1937 goto exit;
1938 }
1939
1940 if (psecuritypriv->dot11AuthAlgrthm == dot11AuthAlgrthm_8021X)
1941 psetkeyparm->algorithm = (unsigned char)psecuritypriv->dot118021XGrpPrivacy;
1942 else
1943 psetkeyparm->algorithm = (u8)psecuritypriv->dot11PrivacyAlgrthm;
1944
1945 psetkeyparm->keyid = (u8)keyid;/* 0~3 */
1946 psetkeyparm->set_tx = set_tx;
1947 if (is_wep_enc(psetkeyparm->algorithm))
1948 adapter->securitypriv.key_mask |= BIT(psetkeyparm->keyid);
1949
1950 switch (psetkeyparm->algorithm) {
1951
1952 case _WEP40_:
1953 keylen = 5;
1954 memcpy(&(psetkeyparm->key[0]), &(psecuritypriv->dot11DefKey[keyid].skey[0]), keylen);
1955 break;
1956 case _WEP104_:
1957 keylen = 13;
1958 memcpy(&(psetkeyparm->key[0]), &(psecuritypriv->dot11DefKey[keyid].skey[0]), keylen);
1959 break;
1960 case _TKIP_:
1961 keylen = 16;
1962 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
1963 psetkeyparm->grpkey = 1;
1964 break;
1965 case _AES_:
1966 keylen = 16;
1967 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
1968 psetkeyparm->grpkey = 1;
1969 break;
1970 default:
1971 res = _FAIL;
1972 kfree(psetkeyparm);
1973 goto exit;
1974 }
1975
1976 if (enqueue) {
1977 pcmd = rtw_zmalloc(sizeof(struct cmd_obj));
1978 if (!pcmd) {
1979 kfree(psetkeyparm);
1980 res = _FAIL; /* try again */
1981 goto exit;
1982 }
1983
1984 pcmd->cmdcode = _SetKey_CMD_;
1985 pcmd->parmbuf = (u8 *)psetkeyparm;
1986 pcmd->cmdsz = (sizeof(struct setkey_parm));
1987 pcmd->rsp = NULL;
1988 pcmd->rspsz = 0;
1989
1990 INIT_LIST_HEAD(&pcmd->list);
1991
1992 res = rtw_enqueue_cmd(pcmdpriv, pcmd);
1993 } else {
1994 setkey_hdl(adapter, (u8 *)psetkeyparm);
1995 kfree(psetkeyparm);
1996 }
1997 exit:
1998 return res;
1999 }
2000
2001 /* 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)2002 int rtw_restruct_wmm_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len, uint initial_out_len)
2003 {
2004 unsigned int ielength = 0;
2005 unsigned int i, j;
2006
2007 i = 12; /* after the fixed IE */
2008 while (i < in_len) {
2009 ielength = initial_out_len;
2010
2011 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 */
2012 for (j = i; j < i + 9; j++) {
2013 out_ie[ielength] = in_ie[j];
2014 ielength++;
2015 }
2016 out_ie[initial_out_len + 1] = 0x07;
2017 out_ie[initial_out_len + 6] = 0x00;
2018 out_ie[initial_out_len + 8] = 0x00;
2019
2020 break;
2021 }
2022
2023 i += (in_ie[i+1]+2); /* to the next IE element */
2024 }
2025
2026 return ielength;
2027
2028 }
2029
2030 /* */
2031 /* Ported from 8185: IsInPreAuthKeyList(). (Renamed from SecIsInPreAuthKeyList(), 2006-10-13.) */
2032 /* Added by Annie, 2006-05-07. */
2033 /* */
2034 /* Search by BSSID, */
2035 /* Return Value: */
2036 /* -1 :if there is no pre-auth key in the table */
2037 /* >= 0 :if there is pre-auth key, and return the entry id */
2038 /* */
2039 /* */
2040
SecIsInPMKIDList(struct adapter * Adapter,u8 * bssid)2041 static int SecIsInPMKIDList(struct adapter *Adapter, u8 *bssid)
2042 {
2043 struct security_priv *p = &Adapter->securitypriv;
2044 int i;
2045
2046 for (i = 0; i < NUM_PMKID_CACHE; i++)
2047 if ((p->PMKIDList[i].bUsed) &&
2048 (!memcmp(p->PMKIDList[i].Bssid, bssid, ETH_ALEN)))
2049 return i;
2050 return -1;
2051 }
2052
2053 /* */
2054 /* Check the RSN IE length */
2055 /* If the RSN IE length <= 20, the RSN IE didn't include the PMKID information */
2056 /* 0-11th element in the array are the fixed IE */
2057 /* 12th element in the array is the IE */
2058 /* 13th element in the array is the IE length */
2059 /* */
2060
rtw_append_pmkid(struct adapter * Adapter,int iEntry,u8 * ie,uint ie_len)2061 static int rtw_append_pmkid(struct adapter *Adapter, int iEntry, u8 *ie, uint ie_len)
2062 {
2063 struct security_priv *psecuritypriv = &Adapter->securitypriv;
2064
2065 if (ie[13] <= 20) {
2066 /* The RSN IE didn't include the PMK ID, append the PMK information */
2067 ie[ie_len] = 1;
2068 ie_len++;
2069 ie[ie_len] = 0; /* PMKID count = 0x0100 */
2070 ie_len++;
2071 memcpy(&ie[ie_len], &psecuritypriv->PMKIDList[iEntry].PMKID, 16);
2072
2073 ie_len += 16;
2074 ie[13] += 18;/* PMKID length = 2+16 */
2075
2076 }
2077 return ie_len;
2078 }
2079
rtw_restruct_sec_ie(struct adapter * adapter,u8 * in_ie,u8 * out_ie,uint in_len)2080 signed int rtw_restruct_sec_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len)
2081 {
2082 u8 authmode = 0x0;
2083 uint ielength;
2084 int iEntry;
2085
2086 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
2087 struct security_priv *psecuritypriv = &adapter->securitypriv;
2088 uint ndisauthmode = psecuritypriv->ndisauthtype;
2089
2090 /* copy fixed ie only */
2091 memcpy(out_ie, in_ie, 12);
2092 ielength = 12;
2093 if ((ndisauthmode == Ndis802_11AuthModeWPA) || (ndisauthmode == Ndis802_11AuthModeWPAPSK))
2094 authmode = WLAN_EID_VENDOR_SPECIFIC;
2095 if ((ndisauthmode == Ndis802_11AuthModeWPA2) || (ndisauthmode == Ndis802_11AuthModeWPA2PSK))
2096 authmode = WLAN_EID_RSN;
2097
2098 if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
2099 memcpy(out_ie+ielength, psecuritypriv->wps_ie, psecuritypriv->wps_ie_len);
2100
2101 ielength += psecuritypriv->wps_ie_len;
2102 } else if ((authmode == WLAN_EID_VENDOR_SPECIFIC) || (authmode == WLAN_EID_RSN)) {
2103 /* copy RSN or SSN */
2104 memcpy(&out_ie[ielength], &psecuritypriv->supplicant_ie[0], psecuritypriv->supplicant_ie[1]+2);
2105 /* debug for CONFIG_IEEE80211W
2106 {
2107 int jj;
2108 printk("supplicant_ie_length =%d &&&&&&&&&&&&&&&&&&&\n", psecuritypriv->supplicant_ie[1]+2);
2109 for (jj = 0; jj < psecuritypriv->supplicant_ie[1]+2; jj++)
2110 printk(" %02x ", psecuritypriv->supplicant_ie[jj]);
2111 printk("\n");
2112 }*/
2113 ielength += psecuritypriv->supplicant_ie[1]+2;
2114 rtw_report_sec_ie(adapter, authmode, psecuritypriv->supplicant_ie);
2115 }
2116
2117 iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
2118 if (iEntry < 0) {
2119 return ielength;
2120 } else {
2121 if (authmode == WLAN_EID_RSN)
2122 ielength = rtw_append_pmkid(adapter, iEntry, out_ie, ielength);
2123 }
2124 return ielength;
2125 }
2126
rtw_init_registrypriv_dev_network(struct adapter * adapter)2127 void rtw_init_registrypriv_dev_network(struct adapter *adapter)
2128 {
2129 struct registry_priv *pregistrypriv = &adapter->registrypriv;
2130 struct eeprom_priv *peepriv = &adapter->eeprompriv;
2131 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
2132 u8 *myhwaddr = myid(peepriv);
2133
2134 memcpy(pdev_network->mac_address, myhwaddr, ETH_ALEN);
2135
2136 memcpy(&pdev_network->ssid, &pregistrypriv->ssid, sizeof(struct ndis_802_11_ssid));
2137
2138 pdev_network->configuration.length = sizeof(struct ndis_802_11_conf);
2139 pdev_network->configuration.beacon_period = 100;
2140 }
2141
rtw_update_registrypriv_dev_network(struct adapter * adapter)2142 void rtw_update_registrypriv_dev_network(struct adapter *adapter)
2143 {
2144 int sz = 0;
2145 struct registry_priv *pregistrypriv = &adapter->registrypriv;
2146 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
2147 struct security_priv *psecuritypriv = &adapter->securitypriv;
2148 struct wlan_network *cur_network = &adapter->mlmepriv.cur_network;
2149 /* struct xmit_priv *pxmitpriv = &adapter->xmitpriv; */
2150
2151 pdev_network->privacy = (psecuritypriv->dot11PrivacyAlgrthm > 0 ? 1 : 0) ; /* adhoc no 802.1x */
2152
2153 pdev_network->rssi = 0;
2154
2155 switch (pregistrypriv->wireless_mode) {
2156 case WIRELESS_11B:
2157 pdev_network->network_type_in_use = (Ndis802_11DS);
2158 break;
2159 case WIRELESS_11G:
2160 case WIRELESS_11BG:
2161 case WIRELESS_11_24N:
2162 case WIRELESS_11G_24N:
2163 case WIRELESS_11BG_24N:
2164 pdev_network->network_type_in_use = (Ndis802_11OFDM24);
2165 break;
2166 default:
2167 /* TODO */
2168 break;
2169 }
2170
2171 pdev_network->configuration.ds_config = (pregistrypriv->channel);
2172
2173 if (cur_network->network.infrastructure_mode == Ndis802_11IBSS)
2174 pdev_network->configuration.atim_window = (0);
2175
2176 pdev_network->infrastructure_mode = (cur_network->network.infrastructure_mode);
2177
2178 /* 1. Supported rates */
2179 /* 2. IE */
2180
2181 /* rtw_set_supported_rate(pdev_network->supported_rates, pregistrypriv->wireless_mode) ; will be called in rtw_generate_ie */
2182 sz = rtw_generate_ie(pregistrypriv);
2183
2184 pdev_network->ie_length = sz;
2185
2186 pdev_network->length = get_wlan_bssid_ex_sz((struct wlan_bssid_ex *)pdev_network);
2187
2188 /* notes: translate ie_length & length after assign the length to cmdsz in createbss_cmd(); */
2189 /* pdev_network->ie_length = cpu_to_le32(sz); */
2190 }
2191
rtw_get_encrypt_decrypt_from_registrypriv(struct adapter * adapter)2192 void rtw_get_encrypt_decrypt_from_registrypriv(struct adapter *adapter)
2193 {
2194 }
2195
2196 /* the function is at passive_level */
rtw_joinbss_reset(struct adapter * padapter)2197 void rtw_joinbss_reset(struct adapter *padapter)
2198 {
2199 u8 threshold;
2200 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2201
2202 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
2203
2204 /* todo: if you want to do something io/reg/hw setting before join_bss, please add code here */
2205
2206 pmlmepriv->num_FortyMHzIntolerant = 0;
2207
2208 pmlmepriv->num_sta_no_ht = 0;
2209
2210 phtpriv->ampdu_enable = false;/* reset to disabled */
2211
2212 /* TH = 1 => means that invalidate usb rx aggregation */
2213 /* TH = 0 => means that validate usb rx aggregation, use init value. */
2214 if (phtpriv->ht_option) {
2215 if (padapter->registrypriv.wifi_spec == 1)
2216 threshold = 1;
2217 else
2218 threshold = 0;
2219 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
2220 } else {
2221 threshold = 1;
2222 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
2223 }
2224 }
2225
rtw_ht_use_default_setting(struct adapter * padapter)2226 void rtw_ht_use_default_setting(struct adapter *padapter)
2227 {
2228 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2229 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
2230 struct registry_priv *pregistrypriv = &padapter->registrypriv;
2231 bool bHwLDPCSupport = false, bHwSTBCSupport = false;
2232 bool bHwSupportBeamformer = false, bHwSupportBeamformee = false;
2233
2234 if (pregistrypriv->wifi_spec)
2235 phtpriv->bss_coexist = 1;
2236 else
2237 phtpriv->bss_coexist = 0;
2238
2239 phtpriv->sgi_40m = TEST_FLAG(pregistrypriv->short_gi, BIT1) ? true : false;
2240 phtpriv->sgi_20m = TEST_FLAG(pregistrypriv->short_gi, BIT0) ? true : false;
2241
2242 /* LDPC support */
2243 rtw_hal_get_def_var(padapter, HAL_DEF_RX_LDPC, (u8 *)&bHwLDPCSupport);
2244 CLEAR_FLAGS(phtpriv->ldpc_cap);
2245 if (bHwLDPCSupport) {
2246 if (TEST_FLAG(pregistrypriv->ldpc_cap, BIT4))
2247 SET_FLAG(phtpriv->ldpc_cap, LDPC_HT_ENABLE_RX);
2248 }
2249 rtw_hal_get_def_var(padapter, HAL_DEF_TX_LDPC, (u8 *)&bHwLDPCSupport);
2250 if (bHwLDPCSupport) {
2251 if (TEST_FLAG(pregistrypriv->ldpc_cap, BIT5))
2252 SET_FLAG(phtpriv->ldpc_cap, LDPC_HT_ENABLE_TX);
2253 }
2254
2255 /* STBC */
2256 rtw_hal_get_def_var(padapter, HAL_DEF_TX_STBC, (u8 *)&bHwSTBCSupport);
2257 CLEAR_FLAGS(phtpriv->stbc_cap);
2258 if (bHwSTBCSupport) {
2259 if (TEST_FLAG(pregistrypriv->stbc_cap, BIT5))
2260 SET_FLAG(phtpriv->stbc_cap, STBC_HT_ENABLE_TX);
2261 }
2262 rtw_hal_get_def_var(padapter, HAL_DEF_RX_STBC, (u8 *)&bHwSTBCSupport);
2263 if (bHwSTBCSupport) {
2264 if (TEST_FLAG(pregistrypriv->stbc_cap, BIT4))
2265 SET_FLAG(phtpriv->stbc_cap, STBC_HT_ENABLE_RX);
2266 }
2267
2268 /* Beamforming setting */
2269 rtw_hal_get_def_var(padapter, HAL_DEF_EXPLICIT_BEAMFORMER, (u8 *)&bHwSupportBeamformer);
2270 rtw_hal_get_def_var(padapter, HAL_DEF_EXPLICIT_BEAMFORMEE, (u8 *)&bHwSupportBeamformee);
2271 CLEAR_FLAGS(phtpriv->beamform_cap);
2272 if (TEST_FLAG(pregistrypriv->beamform_cap, BIT4) && bHwSupportBeamformer)
2273 SET_FLAG(phtpriv->beamform_cap, BEAMFORMING_HT_BEAMFORMER_ENABLE);
2274
2275 if (TEST_FLAG(pregistrypriv->beamform_cap, BIT5) && bHwSupportBeamformee)
2276 SET_FLAG(phtpriv->beamform_cap, BEAMFORMING_HT_BEAMFORMEE_ENABLE);
2277 }
2278
rtw_build_wmm_ie_ht(struct adapter * padapter,u8 * out_ie,uint * pout_len)2279 void rtw_build_wmm_ie_ht(struct adapter *padapter, u8 *out_ie, uint *pout_len)
2280 {
2281 unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
2282 int out_len;
2283
2284 if (padapter->mlmepriv.qospriv.qos_option == 0) {
2285 out_len = *pout_len;
2286 rtw_set_ie(out_ie+out_len, WLAN_EID_VENDOR_SPECIFIC,
2287 _WMM_IE_Length_, WMM_IE, pout_len);
2288
2289 padapter->mlmepriv.qospriv.qos_option = 1;
2290 }
2291 }
2292
2293 /* 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)2294 unsigned int rtw_restructure_ht_ie(struct adapter *padapter, u8 *in_ie, u8 *out_ie, uint in_len, uint *pout_len, u8 channel)
2295 {
2296 u32 ielen, out_len;
2297 enum ieee80211_max_ampdu_length_exp max_rx_ampdu_factor;
2298 unsigned char *p;
2299 struct ieee80211_ht_cap ht_capie;
2300 u8 cbw40_enable = 0, stbc_rx_enable = 0, operation_bw = 0;
2301 struct registry_priv *pregistrypriv = &padapter->registrypriv;
2302 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2303 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
2304 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
2305
2306 phtpriv->ht_option = false;
2307
2308 out_len = *pout_len;
2309
2310 memset(&ht_capie, 0, sizeof(struct ieee80211_ht_cap));
2311
2312 ht_capie.cap_info = cpu_to_le16(IEEE80211_HT_CAP_DSSSCCK40);
2313
2314 if (phtpriv->sgi_20m)
2315 ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_SGI_20);
2316
2317 /* Get HT BW */
2318 if (!in_ie) {
2319 /* TDLS: TODO 20/40 issue */
2320 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
2321 operation_bw = padapter->mlmeextpriv.cur_bwmode;
2322 if (operation_bw > CHANNEL_WIDTH_40)
2323 operation_bw = CHANNEL_WIDTH_40;
2324 } else
2325 /* TDLS: TODO 40? */
2326 operation_bw = CHANNEL_WIDTH_40;
2327 } else {
2328 p = rtw_get_ie(in_ie, WLAN_EID_HT_OPERATION, &ielen, in_len);
2329 if (p && (ielen == sizeof(struct ieee80211_ht_addt_info))) {
2330 struct HT_info_element *pht_info = (struct HT_info_element *)(p+2);
2331
2332 if (pht_info->infos[0] & BIT(2)) {
2333 switch (pht_info->infos[0] & 0x3) {
2334 case 1:
2335 case 3:
2336 operation_bw = CHANNEL_WIDTH_40;
2337 break;
2338 default:
2339 operation_bw = CHANNEL_WIDTH_20;
2340 break;
2341 }
2342 } else {
2343 operation_bw = CHANNEL_WIDTH_20;
2344 }
2345 }
2346 }
2347
2348 /* to disable 40M Hz support while gd_bw_40MHz_en = 0 */
2349 if (channel > 14) {
2350 if ((pregistrypriv->bw_mode & 0xf0) > 0)
2351 cbw40_enable = 1;
2352 } else {
2353 if ((pregistrypriv->bw_mode & 0x0f) > 0)
2354 cbw40_enable = 1;
2355 }
2356
2357 if ((cbw40_enable == 1) && (operation_bw == CHANNEL_WIDTH_40)) {
2358 ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH);
2359 if (phtpriv->sgi_40m)
2360 ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_SGI_40);
2361 }
2362
2363 if (TEST_FLAG(phtpriv->stbc_cap, STBC_HT_ENABLE_TX))
2364 ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_TX_STBC);
2365
2366 /* todo: disable SM power save mode */
2367 ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_SM_PS);
2368
2369 if (TEST_FLAG(phtpriv->stbc_cap, STBC_HT_ENABLE_RX)) {
2370 if ((channel <= 14 && pregistrypriv->rx_stbc == 0x1) || /* enable for 2.4GHz */
2371 (pregistrypriv->wifi_spec == 1))
2372 stbc_rx_enable = 1;
2373 }
2374
2375 /* fill default supported_mcs_set */
2376 memcpy(&ht_capie.mcs, pmlmeext->default_supported_mcs_set, 16);
2377
2378 /* update default supported_mcs_set */
2379 if (stbc_rx_enable)
2380 ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_RX_STBC_1R);/* RX STBC One spatial stream */
2381
2382 set_mcs_rate_by_mask(ht_capie.mcs.rx_mask, MCS_RATE_1R);
2383
2384 {
2385 u32 rx_packet_offset, max_recvbuf_sz;
2386
2387 rtw_hal_get_def_var(padapter, HAL_DEF_RX_PACKET_OFFSET, &rx_packet_offset);
2388 rtw_hal_get_def_var(padapter, HAL_DEF_MAX_RECVBUF_SZ, &max_recvbuf_sz);
2389 }
2390
2391 if (padapter->driver_rx_ampdu_factor != 0xFF)
2392 max_rx_ampdu_factor =
2393 (enum ieee80211_max_ampdu_length_exp)padapter->driver_rx_ampdu_factor;
2394 else
2395 rtw_hal_get_def_var(padapter, HW_VAR_MAX_RX_AMPDU_FACTOR,
2396 &max_rx_ampdu_factor);
2397
2398 /* rtw_hal_get_def_var(padapter, HW_VAR_MAX_RX_AMPDU_FACTOR, &max_rx_ampdu_factor); */
2399 ht_capie.ampdu_params_info = (max_rx_ampdu_factor&0x03);
2400
2401 if (padapter->securitypriv.dot11PrivacyAlgrthm == _AES_)
2402 ht_capie.ampdu_params_info |= (IEEE80211_HT_CAP_AMPDU_DENSITY&(0x07<<2));
2403 else
2404 ht_capie.ampdu_params_info |= (IEEE80211_HT_CAP_AMPDU_DENSITY&0x00);
2405
2406 rtw_set_ie(out_ie+out_len, WLAN_EID_HT_CAPABILITY,
2407 sizeof(struct ieee80211_ht_cap), (unsigned char *)&ht_capie, pout_len);
2408
2409 phtpriv->ht_option = true;
2410
2411 if (in_ie) {
2412 p = rtw_get_ie(in_ie, WLAN_EID_HT_OPERATION, &ielen, in_len);
2413 if (p && (ielen == sizeof(struct ieee80211_ht_addt_info))) {
2414 out_len = *pout_len;
2415 rtw_set_ie(out_ie+out_len, WLAN_EID_HT_OPERATION, ielen, p+2, pout_len);
2416 }
2417 }
2418
2419 return phtpriv->ht_option;
2420
2421 }
2422
2423 /* the function is > passive_level (in critical_section) */
rtw_update_ht_cap(struct adapter * padapter,u8 * pie,uint ie_len,u8 channel)2424 void rtw_update_ht_cap(struct adapter *padapter, u8 *pie, uint ie_len, u8 channel)
2425 {
2426 u8 *p, max_ampdu_sz;
2427 int len;
2428 /* struct sta_info *bmc_sta, *psta; */
2429 struct ieee80211_ht_cap *pht_capie;
2430 /* struct recv_reorder_ctrl *preorder_ctrl; */
2431 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2432 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
2433 /* struct recv_priv *precvpriv = &padapter->recvpriv; */
2434 struct registry_priv *pregistrypriv = &padapter->registrypriv;
2435 /* struct wlan_network *pcur_network = &(pmlmepriv->cur_network);; */
2436 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
2437 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
2438 u8 cbw40_enable = 0;
2439
2440 if (!phtpriv->ht_option)
2441 return;
2442
2443 if ((!pmlmeinfo->HT_info_enable) || (!pmlmeinfo->HT_caps_enable))
2444 return;
2445
2446 /* maybe needs check if ap supports rx ampdu. */
2447 if (!(phtpriv->ampdu_enable) && pregistrypriv->ampdu_enable == 1) {
2448 phtpriv->ampdu_enable = true;
2449 }
2450
2451 /* check Max Rx A-MPDU Size */
2452 len = 0;
2453 p = rtw_get_ie(pie+sizeof(struct ndis_802_11_fix_ie), WLAN_EID_HT_CAPABILITY, &len, ie_len-sizeof(struct ndis_802_11_fix_ie));
2454 if (p && len > 0) {
2455 pht_capie = (struct ieee80211_ht_cap *)(p+2);
2456 max_ampdu_sz = (pht_capie->ampdu_params_info & IEEE80211_HT_CAP_AMPDU_FACTOR);
2457 max_ampdu_sz = 1 << (max_ampdu_sz+3); /* max_ampdu_sz (kbytes); */
2458
2459 phtpriv->rx_ampdu_maxlen = max_ampdu_sz;
2460
2461 }
2462
2463 len = 0;
2464 p = rtw_get_ie(pie+sizeof(struct ndis_802_11_fix_ie), WLAN_EID_HT_OPERATION, &len, ie_len-sizeof(struct ndis_802_11_fix_ie));
2465 if (p && len > 0) {
2466 /* todo: */
2467 }
2468
2469 if (channel > 14) {
2470 if ((pregistrypriv->bw_mode & 0xf0) > 0)
2471 cbw40_enable = 1;
2472 } else {
2473 if ((pregistrypriv->bw_mode & 0x0f) > 0)
2474 cbw40_enable = 1;
2475 }
2476
2477 /* update cur_bwmode & cur_ch_offset */
2478 if ((cbw40_enable) &&
2479 (le16_to_cpu(pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info) &
2480 BIT(1)) && (pmlmeinfo->HT_info.infos[0] & BIT(2))) {
2481 int i;
2482
2483 /* update the MCS set */
2484 for (i = 0; i < 16; i++)
2485 pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= pmlmeext->default_supported_mcs_set[i];
2486
2487 /* update the MCS rates */
2488 set_mcs_rate_by_mask(pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate, MCS_RATE_1R);
2489
2490 /* switch to the 40M Hz mode according to the AP */
2491 /* pmlmeext->cur_bwmode = CHANNEL_WIDTH_40; */
2492 switch ((pmlmeinfo->HT_info.infos[0] & 0x3)) {
2493 case EXTCHNL_OFFSET_UPPER:
2494 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_LOWER;
2495 break;
2496
2497 case EXTCHNL_OFFSET_LOWER:
2498 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_UPPER;
2499 break;
2500
2501 default:
2502 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
2503 break;
2504 }
2505 }
2506
2507 /* */
2508 /* Config SM Power Save setting */
2509 /* */
2510 pmlmeinfo->SM_PS =
2511 (le16_to_cpu(pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info) &
2512 0x0C) >> 2;
2513
2514 /* */
2515 /* Config current HT Protection mode. */
2516 /* */
2517 pmlmeinfo->HT_protection = pmlmeinfo->HT_info.infos[1] & 0x3;
2518 }
2519
rtw_issue_addbareq_cmd(struct adapter * padapter,struct xmit_frame * pxmitframe)2520 void rtw_issue_addbareq_cmd(struct adapter *padapter, struct xmit_frame *pxmitframe)
2521 {
2522 u8 issued;
2523 int priority;
2524 struct sta_info *psta;
2525 struct ht_priv *phtpriv;
2526 struct pkt_attrib *pattrib = &pxmitframe->attrib;
2527 s32 bmcst = IS_MCAST(pattrib->ra);
2528
2529 /* if (bmcst || (padapter->mlmepriv.LinkDetectInfo.bTxBusyTraffic == false)) */
2530 if (bmcst || (padapter->mlmepriv.LinkDetectInfo.NumTxOkInPeriod < 100))
2531 return;
2532
2533 priority = pattrib->priority;
2534
2535 psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
2536 if (pattrib->psta != psta)
2537 return;
2538
2539 if (!psta)
2540 return;
2541
2542 if (!(psta->state & _FW_LINKED))
2543 return;
2544
2545 phtpriv = &psta->htpriv;
2546
2547 if (phtpriv->ht_option && phtpriv->ampdu_enable) {
2548 issued = (phtpriv->agg_enable_bitmap>>priority)&0x1;
2549 issued |= (phtpriv->candidate_tid_bitmap>>priority)&0x1;
2550
2551 if (issued == 0) {
2552 psta->htpriv.candidate_tid_bitmap |= BIT((u8)priority);
2553 rtw_addbareq_cmd(padapter, (u8) priority, pattrib->ra);
2554 }
2555 }
2556
2557 }
2558
rtw_append_exented_cap(struct adapter * padapter,u8 * out_ie,uint * pout_len)2559 void rtw_append_exented_cap(struct adapter *padapter, u8 *out_ie, uint *pout_len)
2560 {
2561 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2562 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
2563 u8 cap_content[8] = {0};
2564
2565 if (phtpriv->bss_coexist)
2566 SET_EXT_CAPABILITY_ELE_BSS_COEXIST(cap_content, 1);
2567
2568 rtw_set_ie(out_ie + *pout_len, WLAN_EID_EXT_CAPABILITY, 8, cap_content, pout_len);
2569 }
2570
rtw_set_to_roam(struct adapter * adapter,u8 to_roam)2571 inline void rtw_set_to_roam(struct adapter *adapter, u8 to_roam)
2572 {
2573 if (to_roam == 0)
2574 adapter->mlmepriv.to_join = false;
2575 adapter->mlmepriv.to_roam = to_roam;
2576 }
2577
rtw_dec_to_roam(struct adapter * adapter)2578 inline u8 rtw_dec_to_roam(struct adapter *adapter)
2579 {
2580 adapter->mlmepriv.to_roam--;
2581 return adapter->mlmepriv.to_roam;
2582 }
2583
rtw_to_roam(struct adapter * adapter)2584 inline u8 rtw_to_roam(struct adapter *adapter)
2585 {
2586 return adapter->mlmepriv.to_roam;
2587 }
2588
rtw_roaming(struct adapter * padapter,struct wlan_network * tgt_network)2589 void rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
2590 {
2591 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2592
2593 spin_lock_bh(&pmlmepriv->lock);
2594 _rtw_roaming(padapter, tgt_network);
2595 spin_unlock_bh(&pmlmepriv->lock);
2596 }
_rtw_roaming(struct adapter * padapter,struct wlan_network * tgt_network)2597 void _rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
2598 {
2599 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2600 struct wlan_network *cur_network = &pmlmepriv->cur_network;
2601
2602 if (rtw_to_roam(padapter) > 0) {
2603 memcpy(&pmlmepriv->assoc_ssid, &cur_network->network.ssid, sizeof(struct ndis_802_11_ssid));
2604
2605 pmlmepriv->assoc_by_bssid = false;
2606
2607 while (rtw_do_join(padapter) != _SUCCESS) {
2608 rtw_dec_to_roam(padapter);
2609 if (rtw_to_roam(padapter) <= 0) {
2610 rtw_indicate_disconnect(padapter);
2611 break;
2612 }
2613 }
2614 }
2615 }
2616
rtw_linked_check(struct adapter * padapter)2617 signed int rtw_linked_check(struct adapter *padapter)
2618 {
2619 if ((check_fwstate(&padapter->mlmepriv, WIFI_AP_STATE) == true) ||
2620 (check_fwstate(&padapter->mlmepriv, WIFI_ADHOC_STATE|WIFI_ADHOC_MASTER_STATE) == true)) {
2621 if (padapter->stapriv.asoc_sta_count > 2)
2622 return true;
2623 } else { /* Station mode */
2624 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) == true)
2625 return true;
2626 }
2627 return false;
2628 }
2629