1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2007 - 2011 Realtek Corporation. */
3
4 #define _RTW_MLME_C_
5
6 #include "../include/osdep_service.h"
7 #include "../include/drv_types.h"
8 #include "../include/recv_osdep.h"
9 #include "../include/xmit_osdep.h"
10 #include "../include/hal_intf.h"
11 #include "../include/mlme_osdep.h"
12 #include "../include/sta_info.h"
13 #include "../include/wifi.h"
14 #include "../include/wlan_bssdef.h"
15 #include "../include/rtw_ioctl_set.h"
16 #include "../include/usb_osintf.h"
17
18 extern unsigned char MCS_rate_2R[16];
19 extern unsigned char MCS_rate_1R[16];
20
rtw_set_roaming(struct adapter * adapter,u8 to_roaming)21 void rtw_set_roaming(struct adapter *adapter, u8 to_roaming)
22 {
23 if (to_roaming == 0)
24 adapter->mlmepriv.to_join = false;
25 adapter->mlmepriv.to_roaming = to_roaming;
26 }
27
rtw_to_roaming(struct adapter * adapter)28 u8 rtw_to_roaming(struct adapter *adapter)
29 {
30 return adapter->mlmepriv.to_roaming;
31 }
32
_rtw_init_mlme_priv(struct adapter * padapter)33 int _rtw_init_mlme_priv(struct adapter *padapter)
34 {
35 int i;
36 u8 *pbuf;
37 struct wlan_network *pnetwork;
38 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
39 int res = _SUCCESS;
40
41 /* We don't need to memset padapter->XXX to zero, because adapter is allocated by vzalloc(). */
42
43 pmlmepriv->nic_hdl = (u8 *)padapter;
44
45 pmlmepriv->pscanned = NULL;
46 pmlmepriv->fw_state = 0;
47 pmlmepriv->cur_network.network.InfrastructureMode = Ndis802_11AutoUnknown;
48 pmlmepriv->scan_mode = SCAN_ACTIVE;/* 1: active, 0: pasive. Maybe someday we should rename this varable to "active_mode" (Jeff) */
49
50 spin_lock_init(&pmlmepriv->lock);
51 _rtw_init_queue(&pmlmepriv->free_bss_pool);
52 _rtw_init_queue(&pmlmepriv->scanned_queue);
53
54 set_scanned_network_val(pmlmepriv, 0);
55
56 memset(&pmlmepriv->assoc_ssid, 0, sizeof(struct ndis_802_11_ssid));
57
58 pbuf = vzalloc(MAX_BSS_CNT * (sizeof(struct wlan_network)));
59
60 if (!pbuf) {
61 res = _FAIL;
62 goto exit;
63 }
64 pmlmepriv->free_bss_buf = pbuf;
65
66 pnetwork = (struct wlan_network *)pbuf;
67
68 for (i = 0; i < MAX_BSS_CNT; i++) {
69 INIT_LIST_HEAD(&pnetwork->list);
70
71 list_add_tail(&pnetwork->list, &pmlmepriv->free_bss_pool.queue);
72
73 pnetwork++;
74 }
75
76 /* allocate DMA-able/Non-Page memory for cmd_buf and rsp_buf */
77
78 rtw_clear_scan_deny(padapter);
79
80 rtw_init_mlme_timer(padapter);
81
82 exit:
83
84 return res;
85 }
86
rtw_mfree_mlme_priv_lock(struct mlme_priv * pmlmepriv)87 static void rtw_mfree_mlme_priv_lock(struct mlme_priv *pmlmepriv)
88 {
89 }
90
91 #if defined(CONFIG_88EU_AP_MODE)
rtw_free_mlme_ie_data(u8 ** ppie,u32 * plen)92 static void rtw_free_mlme_ie_data(u8 **ppie, u32 *plen)
93 {
94 kfree(*ppie);
95 *plen = 0;
96 *ppie = NULL;
97 }
98
rtw_free_mlme_priv_ie_data(struct mlme_priv * pmlmepriv)99 void rtw_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv)
100 {
101 kfree(pmlmepriv->assoc_req);
102 kfree(pmlmepriv->assoc_rsp);
103 rtw_free_mlme_ie_data(&pmlmepriv->wps_beacon_ie, &pmlmepriv->wps_beacon_ie_len);
104 rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_req_ie, &pmlmepriv->wps_probe_req_ie_len);
105 rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_resp_ie, &pmlmepriv->wps_probe_resp_ie_len);
106 rtw_free_mlme_ie_data(&pmlmepriv->wps_assoc_resp_ie, &pmlmepriv->wps_assoc_resp_ie_len);
107
108 rtw_free_mlme_ie_data(&pmlmepriv->p2p_beacon_ie, &pmlmepriv->p2p_beacon_ie_len);
109 rtw_free_mlme_ie_data(&pmlmepriv->p2p_probe_req_ie, &pmlmepriv->p2p_probe_req_ie_len);
110 rtw_free_mlme_ie_data(&pmlmepriv->p2p_probe_resp_ie, &pmlmepriv->p2p_probe_resp_ie_len);
111 rtw_free_mlme_ie_data(&pmlmepriv->p2p_go_probe_resp_ie, &pmlmepriv->p2p_go_probe_resp_ie_len);
112 rtw_free_mlme_ie_data(&pmlmepriv->p2p_assoc_req_ie, &pmlmepriv->p2p_assoc_req_ie_len);
113 }
114 #else
rtw_free_mlme_priv_ie_data(struct mlme_priv * pmlmepriv)115 void rtw_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv)
116 {
117 }
118 #endif
119
_rtw_free_mlme_priv(struct mlme_priv * pmlmepriv)120 void _rtw_free_mlme_priv(struct mlme_priv *pmlmepriv)
121 {
122
123 rtw_free_mlme_priv_ie_data(pmlmepriv);
124
125 if (pmlmepriv) {
126 rtw_mfree_mlme_priv_lock(pmlmepriv);
127
128 vfree(pmlmepriv->free_bss_buf);
129 }
130
131 }
132
_rtw_enqueue_network(struct __queue * queue,struct wlan_network * pnetwork)133 int _rtw_enqueue_network(struct __queue *queue, struct wlan_network *pnetwork)
134 {
135
136 if (!pnetwork)
137 goto exit;
138
139 spin_lock_bh(&queue->lock);
140
141 list_add_tail(&pnetwork->list, &queue->queue);
142
143 spin_unlock_bh(&queue->lock);
144
145 exit:
146
147 return _SUCCESS;
148 }
149
_rtw_dequeue_network(struct __queue * queue)150 struct wlan_network *_rtw_dequeue_network(struct __queue *queue)
151 {
152 struct wlan_network *pnetwork;
153
154 spin_lock_bh(&queue->lock);
155
156 if (list_empty(&queue->queue)) {
157 pnetwork = NULL;
158 } else {
159 pnetwork = container_of((&queue->queue)->next, struct wlan_network, list);
160
161 list_del_init(&pnetwork->list);
162 }
163
164 spin_unlock_bh(&queue->lock);
165
166 return pnetwork;
167 }
168
_rtw_alloc_network(struct mlme_priv * pmlmepriv)169 struct wlan_network *_rtw_alloc_network(struct mlme_priv *pmlmepriv)/* _queue *free_queue) */
170 {
171 struct wlan_network *pnetwork;
172 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
173 struct list_head *plist = NULL;
174
175 spin_lock_bh(&free_queue->lock);
176
177 if (list_empty(&free_queue->queue)) {
178 pnetwork = NULL;
179 goto exit;
180 }
181 plist = (&free_queue->queue)->next;
182
183 pnetwork = container_of(plist, struct wlan_network, list);
184
185 list_del_init(&pnetwork->list);
186
187 pnetwork->network_type = 0;
188 pnetwork->fixed = false;
189 pnetwork->last_scanned = jiffies;
190 pnetwork->aid = 0;
191 pnetwork->join_res = 0;
192
193 pmlmepriv->num_of_scanned++;
194
195 exit:
196 spin_unlock_bh(&free_queue->lock);
197
198 return pnetwork;
199 }
200
_rtw_free_network(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork,u8 isfreeall)201 void _rtw_free_network(struct mlme_priv *pmlmepriv, struct wlan_network *pnetwork, u8 isfreeall)
202 {
203 u32 curr_time, delta_time;
204 u32 lifetime = SCANQUEUE_LIFETIME;
205 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
206
207 if (!pnetwork)
208 return;
209
210 if (pnetwork->fixed)
211 return;
212 curr_time = jiffies;
213 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) ||
214 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)))
215 lifetime = 1;
216 if (!isfreeall) {
217 delta_time = (curr_time - pnetwork->last_scanned) / HZ;
218 if (delta_time < lifetime)/* unit:sec */
219 return;
220 }
221 spin_lock_bh(&free_queue->lock);
222 list_del_init(&pnetwork->list);
223 list_add_tail(&pnetwork->list, &free_queue->queue);
224 pmlmepriv->num_of_scanned--;
225 spin_unlock_bh(&free_queue->lock);
226 }
227
_rtw_free_network_nolock(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork)228 void _rtw_free_network_nolock(struct mlme_priv *pmlmepriv, struct wlan_network *pnetwork)
229 {
230 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
231
232 if (!pnetwork)
233 return;
234 if (pnetwork->fixed)
235 return;
236 list_del_init(&pnetwork->list);
237 list_add_tail(&pnetwork->list, get_list_head(free_queue));
238 pmlmepriv->num_of_scanned--;
239 }
240
241 /*
242 return the wlan_network with the matching addr
243
244 Shall be calle under atomic context... to avoid possible racing condition...
245 */
_rtw_find_network(struct __queue * scanned_queue,u8 * addr)246 struct wlan_network *_rtw_find_network(struct __queue *scanned_queue, u8 *addr)
247 {
248 struct list_head *phead, *plist;
249 struct wlan_network *pnetwork = NULL;
250 u8 zero_addr[ETH_ALEN] = {0, 0, 0, 0, 0, 0};
251
252 if (!memcmp(zero_addr, addr, ETH_ALEN)) {
253 pnetwork = NULL;
254 goto exit;
255 }
256 phead = get_list_head(scanned_queue);
257 plist = phead->next;
258
259 while (plist != phead) {
260 pnetwork = container_of(plist, struct wlan_network, list);
261 if (!memcmp(addr, pnetwork->network.MacAddress, ETH_ALEN))
262 break;
263 plist = plist->next;
264 }
265 if (plist == phead)
266 pnetwork = NULL;
267 exit:
268
269 return pnetwork;
270 }
271
_rtw_free_network_queue(struct adapter * padapter,u8 isfreeall)272 void _rtw_free_network_queue(struct adapter *padapter, u8 isfreeall)
273 {
274 struct list_head *phead, *plist;
275 struct wlan_network *pnetwork;
276 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
277 struct __queue *scanned_queue = &pmlmepriv->scanned_queue;
278
279 spin_lock_bh(&scanned_queue->lock);
280
281 phead = get_list_head(scanned_queue);
282 plist = phead->next;
283
284 while (phead != plist) {
285 pnetwork = container_of(plist, struct wlan_network, list);
286
287 plist = plist->next;
288
289 _rtw_free_network(pmlmepriv, pnetwork, isfreeall);
290 }
291 spin_unlock_bh(&scanned_queue->lock);
292
293 }
294
rtw_if_up(struct adapter * padapter)295 int rtw_if_up(struct adapter *padapter)
296 {
297 int res;
298
299 if (padapter->bDriverStopped || padapter->bSurpriseRemoved ||
300 !check_fwstate(&padapter->mlmepriv, _FW_LINKED))
301 res = false;
302 else
303 res = true;
304
305 return res;
306 }
307
rtw_generate_random_ibss(u8 * pibss)308 void rtw_generate_random_ibss(u8 *pibss)
309 {
310 u32 curtime = jiffies;
311
312 pibss[0] = 0x02; /* in ad-hoc mode bit1 must set to 1 */
313 pibss[1] = 0x11;
314 pibss[2] = 0x87;
315 pibss[3] = (u8)(curtime & 0xff);/* p[0]; */
316 pibss[4] = (u8)((curtime >> 8) & 0xff);/* p[1]; */
317 pibss[5] = (u8)((curtime >> 16) & 0xff);/* p[2]; */
318 }
319
rtw_get_capability_from_ie(u8 * ie)320 u8 *rtw_get_capability_from_ie(u8 *ie)
321 {
322 return ie + 8 + 2;
323 }
324
rtw_get_capability(struct wlan_bssid_ex * bss)325 u16 rtw_get_capability(struct wlan_bssid_ex *bss)
326 {
327 __le16 val;
328
329 memcpy((u8 *)&val, rtw_get_capability_from_ie(bss->IEs), 2);
330
331 return le16_to_cpu(val);
332 }
333
rtw_get_timestampe_from_ie(u8 * ie)334 u8 *rtw_get_timestampe_from_ie(u8 *ie)
335 {
336 return ie + 0;
337 }
338
rtw_get_beacon_interval_from_ie(u8 * ie)339 u8 *rtw_get_beacon_interval_from_ie(u8 *ie)
340 {
341 return ie + 8;
342 }
343
rtw_init_mlme_priv(struct adapter * padapter)344 int rtw_init_mlme_priv(struct adapter *padapter)/* struct mlme_priv *pmlmepriv) */
345 {
346 int res;
347
348 res = _rtw_init_mlme_priv(padapter);/* (pmlmepriv); */
349
350 return res;
351 }
352
rtw_free_mlme_priv(struct mlme_priv * pmlmepriv)353 void rtw_free_mlme_priv(struct mlme_priv *pmlmepriv)
354 {
355 _rtw_free_mlme_priv(pmlmepriv);
356 }
357
rtw_alloc_network(struct mlme_priv * pmlmepriv)358 static struct wlan_network *rtw_alloc_network(struct mlme_priv *pmlmepriv)
359 {
360 struct wlan_network *pnetwork;
361
362 pnetwork = _rtw_alloc_network(pmlmepriv);
363
364 return pnetwork;
365 }
366
rtw_free_network_nolock(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork)367 static void rtw_free_network_nolock(struct mlme_priv *pmlmepriv,
368 struct wlan_network *pnetwork)
369 {
370
371 _rtw_free_network_nolock(pmlmepriv, pnetwork);
372
373 }
374
rtw_free_network_queue(struct adapter * dev,u8 isfreeall)375 void rtw_free_network_queue(struct adapter *dev, u8 isfreeall)
376 {
377
378 _rtw_free_network_queue(dev, isfreeall);
379
380 }
381
382 /*
383 return the wlan_network with the matching addr
384
385 Shall be calle under atomic context... to avoid possible racing condition...
386 */
rtw_find_network(struct __queue * scanned_queue,u8 * addr)387 struct wlan_network *rtw_find_network(struct __queue *scanned_queue, u8 *addr)
388 {
389 struct wlan_network *pnetwork = _rtw_find_network(scanned_queue, addr);
390
391 return pnetwork;
392 }
393
rtw_is_same_ibss(struct adapter * adapter,struct wlan_network * pnetwork)394 int rtw_is_same_ibss(struct adapter *adapter, struct wlan_network *pnetwork)
395 {
396 int ret = true;
397 struct security_priv *psecuritypriv = &adapter->securitypriv;
398
399 if ((psecuritypriv->dot11PrivacyAlgrthm != _NO_PRIVACY_) &&
400 (pnetwork->network.Privacy == 0))
401 ret = false;
402 else if ((psecuritypriv->dot11PrivacyAlgrthm == _NO_PRIVACY_) &&
403 (pnetwork->network.Privacy == 1))
404 ret = false;
405 else
406 ret = true;
407 return ret;
408 }
409
is_same_ess(struct wlan_bssid_ex * a,struct wlan_bssid_ex * b)410 static int is_same_ess(struct wlan_bssid_ex *a, struct wlan_bssid_ex *b)
411 {
412 return (a->Ssid.SsidLength == b->Ssid.SsidLength) &&
413 !memcmp(a->Ssid.Ssid, b->Ssid.Ssid, a->Ssid.SsidLength);
414 }
415
is_same_network(struct wlan_bssid_ex * src,struct wlan_bssid_ex * dst)416 int is_same_network(struct wlan_bssid_ex *src, struct wlan_bssid_ex *dst)
417 {
418 u16 s_cap, d_cap;
419 __le16 le_scap, le_dcap;
420
421 memcpy((u8 *)&le_scap, rtw_get_capability_from_ie(src->IEs), 2);
422 memcpy((u8 *)&le_dcap, rtw_get_capability_from_ie(dst->IEs), 2);
423
424 s_cap = le16_to_cpu(le_scap);
425 d_cap = le16_to_cpu(le_dcap);
426
427 return ((src->Ssid.SsidLength == dst->Ssid.SsidLength) &&
428 ((!memcmp(src->MacAddress, dst->MacAddress, ETH_ALEN))) &&
429 ((!memcmp(src->Ssid.Ssid, dst->Ssid.Ssid, src->Ssid.SsidLength))) &&
430 ((s_cap & WLAN_CAPABILITY_IBSS) ==
431 (d_cap & WLAN_CAPABILITY_IBSS)) &&
432 ((s_cap & WLAN_CAPABILITY_BSS) ==
433 (d_cap & WLAN_CAPABILITY_BSS)));
434 }
435
rtw_get_oldest_wlan_network(struct __queue * scanned_queue)436 struct wlan_network *rtw_get_oldest_wlan_network(struct __queue *scanned_queue)
437 {
438 struct list_head *plist, *phead;
439 struct wlan_network *pwlan = NULL;
440 struct wlan_network *oldest = NULL;
441
442 phead = get_list_head(scanned_queue);
443
444 plist = phead->next;
445
446 while (1) {
447 if (phead == plist)
448 break;
449
450 pwlan = container_of(plist, struct wlan_network, list);
451
452 if (!pwlan->fixed) {
453 if (!oldest || time_after(oldest->last_scanned, pwlan->last_scanned))
454 oldest = pwlan;
455 }
456
457 plist = plist->next;
458 }
459
460 return oldest;
461 }
462
update_network(struct wlan_bssid_ex * dst,struct wlan_bssid_ex * src,struct adapter * padapter,bool update_ie)463 void update_network(struct wlan_bssid_ex *dst, struct wlan_bssid_ex *src,
464 struct adapter *padapter, bool update_ie)
465 {
466 long rssi_ori = dst->Rssi;
467 u8 sq_smp = src->PhyInfo.SignalQuality;
468 u8 ss_final;
469 u8 sq_final;
470 long rssi_final;
471
472 rtw_hal_antdiv_rssi_compared(padapter, dst, src); /* this will update src.Rssi, need consider again */
473
474 /* The rule below is 1/5 for sample value, 4/5 for history value */
475 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) && is_same_network(&padapter->mlmepriv.cur_network.network, src)) {
476 /* Take the recvpriv's value for the connected AP*/
477 ss_final = padapter->recvpriv.signal_strength;
478 sq_final = padapter->recvpriv.signal_qual;
479 /* the rssi value here is undecorated, and will be used for antenna diversity */
480 if (sq_smp != 101) /* from the right channel */
481 rssi_final = dst->Rssi; //(src->Rssi+dst->Rssi*4)/5;
482 else
483 rssi_final = rssi_ori;
484 } else {
485 // if (sq_smp != 101) { /* from the right channel */
486 ss_final = (u32)dst->PhyInfo.SignalStrength; //((u32)(src->PhyInfo.SignalStrength)+(u32)(dst->PhyInfo.SignalStrength)*4)/5;
487 sq_final = (u32)dst->PhyInfo.SignalQuality; //((u32)(src->PhyInfo.SignalQuality)+(u32)(dst->PhyInfo.SignalQuality)*4)/5;
488 rssi_final = dst->Rssi; //(src->Rssi+dst->Rssi*4)/5;
489 // } else {
490 // /* bss info not receiving from the right channel, use the original RX signal infos */
491 // ss_final = dst->PhyInfo.SignalStrength;
492 // sq_final = dst->PhyInfo.SignalQuality;
493 // rssi_final = dst->Rssi;
494 // }
495 }
496 if (update_ie) {
497 dst->Reserved[0] = src->Reserved[0];
498 dst->Reserved[1] = src->Reserved[1];
499 memcpy((u8 *)dst, (u8 *)src, get_wlan_bssid_ex_sz(src));
500 }
501 dst->PhyInfo.SignalStrength = ss_final;
502 dst->PhyInfo.SignalQuality = sq_final;
503 dst->Rssi = rssi_final;
504
505 }
506
update_current_network(struct adapter * adapter,struct wlan_bssid_ex * pnetwork)507 static void update_current_network(struct adapter *adapter, struct wlan_bssid_ex *pnetwork)
508 {
509 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
510
511 if (check_fwstate(pmlmepriv, _FW_LINKED) &&
512 is_same_network(&pmlmepriv->cur_network.network, pnetwork)) {
513 update_network(&pmlmepriv->cur_network.network, pnetwork, adapter, true);
514 rtw_update_protection(adapter, (pmlmepriv->cur_network.network.IEs) + sizeof(struct ndis_802_11_fixed_ie),
515 pmlmepriv->cur_network.network.IELength);
516 }
517
518 }
519
520 /*
521 Caller must hold pmlmepriv->lock first.
522 */
rtw_update_scanned_network(struct adapter * adapter,struct wlan_bssid_ex * target)523 void rtw_update_scanned_network(struct adapter *adapter, struct wlan_bssid_ex *target)
524 {
525 struct list_head *plist, *phead;
526 u32 bssid_ex_sz;
527 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
528 struct __queue *queue = &pmlmepriv->scanned_queue;
529 struct wlan_network *pnetwork = NULL;
530 struct wlan_network *oldest = NULL;
531
532 spin_lock_bh(&queue->lock);
533 phead = get_list_head(queue);
534 plist = phead->next;
535
536 while (phead != plist) {
537 pnetwork = container_of(plist, struct wlan_network, list);
538
539 if (is_same_network(&pnetwork->network, target))
540 break;
541 if ((oldest == ((struct wlan_network *)0)) ||
542 time_after(oldest->last_scanned, pnetwork->last_scanned))
543 oldest = pnetwork;
544 plist = plist->next;
545 }
546 /* If we didn't find a match, then get a new network slot to initialize
547 * with this beacon's information */
548 if (phead == plist) {
549 if (list_empty(&pmlmepriv->free_bss_pool.queue)) {
550 /* If there are no more slots, expire the oldest */
551 pnetwork = oldest;
552
553 rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &target->PhyInfo.Optimum_antenna);
554 memcpy(&pnetwork->network, target, get_wlan_bssid_ex_sz(target));
555 /* variable initialize */
556 pnetwork->fixed = false;
557 pnetwork->last_scanned = jiffies;
558
559 pnetwork->network_type = 0;
560 pnetwork->aid = 0;
561 pnetwork->join_res = 0;
562
563 /* bss info not receiving from the right channel */
564 if (pnetwork->network.PhyInfo.SignalQuality == 101)
565 pnetwork->network.PhyInfo.SignalQuality = 0;
566 } else {
567 /* Otherwise just pull from the free list */
568
569 pnetwork = rtw_alloc_network(pmlmepriv); /* will update scan_time */
570
571 if (!pnetwork)
572 goto exit;
573
574 bssid_ex_sz = get_wlan_bssid_ex_sz(target);
575 target->Length = bssid_ex_sz;
576 rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &target->PhyInfo.Optimum_antenna);
577 memcpy(&pnetwork->network, target, bssid_ex_sz);
578
579 pnetwork->last_scanned = jiffies;
580
581 /* bss info not receiving from the right channel */
582 if (pnetwork->network.PhyInfo.SignalQuality == 101)
583 pnetwork->network.PhyInfo.SignalQuality = 0;
584 list_add_tail(&pnetwork->list, &queue->queue);
585 }
586 } else {
587 /* we have an entry and we are going to update it. But this entry may
588 * be already expired. In this case we do the same as we found a new
589 * net and call the new_net handler
590 */
591 bool update_ie = true;
592
593 pnetwork->last_scanned = jiffies;
594
595 /* target.Reserved[0]== 1, means that scanned network is a bcn frame. */
596 /* probe resp(3) > beacon(1) > probe req(2) */
597 if ((target->Reserved[0] != 2) &&
598 (target->Reserved[0] >= pnetwork->network.Reserved[0]))
599 update_ie = true;
600 else
601 update_ie = false;
602 update_network(&pnetwork->network, target, adapter, update_ie);
603 }
604
605 exit:
606 spin_unlock_bh(&queue->lock);
607
608 }
609
rtw_add_network(struct adapter * adapter,struct wlan_bssid_ex * pnetwork)610 static void rtw_add_network(struct adapter *adapter,
611 struct wlan_bssid_ex *pnetwork)
612 {
613
614 #if defined(CONFIG_88EU_P2P)
615 rtw_wlan_bssid_ex_remove_p2p_attr(pnetwork, P2P_ATTR_GROUP_INFO);
616 #endif
617 update_current_network(adapter, pnetwork);
618 rtw_update_scanned_network(adapter, pnetwork);
619
620 }
621
622 /* select the desired network based on the capability of the (i)bss. */
623 /* check items: (1) security */
624 /* (2) network_type */
625 /* (3) WMM */
626 /* (4) HT */
627 /* (5) others */
rtw_is_desired_network(struct adapter * adapter,struct wlan_network * pnetwork)628 static int rtw_is_desired_network(struct adapter *adapter, struct wlan_network *pnetwork)
629 {
630 struct security_priv *psecuritypriv = &adapter->securitypriv;
631 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
632 u32 desired_encmode;
633 u32 privacy;
634
635 /* u8 wps_ie[512]; */
636 uint wps_ielen;
637
638 int bselected = true;
639
640 desired_encmode = psecuritypriv->ndisencryptstatus;
641 privacy = pnetwork->network.Privacy;
642
643 if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
644 if (rtw_get_wps_ie(pnetwork->network.IEs + _FIXED_IE_LENGTH_, pnetwork->network.IELength - _FIXED_IE_LENGTH_, NULL, &wps_ielen))
645 return true;
646 else
647 return false;
648 }
649 if (adapter->registrypriv.wifi_spec == 1) { /* for correct flow of 8021X to do.... */
650 u8 *p = NULL;
651 uint ie_len = 0;
652
653 if ((desired_encmode == Ndis802_11EncryptionDisabled) && (privacy != 0))
654 bselected = false;
655 if (psecuritypriv->ndisauthtype == Ndis802_11AuthModeWPA2PSK) {
656 p = rtw_get_ie(pnetwork->network.IEs + _BEACON_IE_OFFSET_,
657 _RSN_IE_2_, &ie_len,
658 (pnetwork->network.IELength -
659 _BEACON_IE_OFFSET_));
660 if (p && ie_len > 0)
661 bselected = true;
662 else
663 bselected = false;
664 }
665 }
666
667 if ((desired_encmode != Ndis802_11EncryptionDisabled) && (privacy == 0)) {
668 DBG_88E("desired_encmode: %d, privacy: %d\n", desired_encmode, privacy);
669 bselected = false;
670 }
671
672 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
673 if (pnetwork->network.InfrastructureMode != pmlmepriv->cur_network.network.InfrastructureMode)
674 bselected = false;
675 }
676
677 return bselected;
678 }
679
rtw_survey_event_callback(struct adapter * adapter,u8 * pbuf)680 void rtw_survey_event_callback(struct adapter *adapter, u8 *pbuf)
681 {
682 u32 len;
683 struct wlan_bssid_ex *pnetwork;
684 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
685
686 pnetwork = (struct wlan_bssid_ex *)pbuf;
687
688 len = get_wlan_bssid_ex_sz(pnetwork);
689 if (len > (sizeof(struct wlan_bssid_ex)))
690 return;
691 spin_lock_bh(&pmlmepriv->lock);
692
693 /* update IBSS_network 's timestamp */
694 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) {
695 if (!memcmp(&pmlmepriv->cur_network.network.MacAddress, pnetwork->MacAddress, ETH_ALEN)) {
696 struct wlan_network *ibss_wlan = NULL;
697
698 memcpy(pmlmepriv->cur_network.network.IEs, pnetwork->IEs, 8);
699 spin_lock_bh(&pmlmepriv->scanned_queue.lock);
700 ibss_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->MacAddress);
701 if (ibss_wlan) {
702 memcpy(ibss_wlan->network.IEs, pnetwork->IEs, 8);
703 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
704 goto exit;
705 }
706 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
707 }
708 }
709
710 /* lock pmlmepriv->lock when you accessing network_q */
711 if (!check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
712 if (pnetwork->Ssid.Ssid[0] == 0)
713 pnetwork->Ssid.SsidLength = 0;
714 rtw_add_network(adapter, pnetwork);
715 }
716
717 exit:
718
719 spin_unlock_bh(&pmlmepriv->lock);
720 }
721
rtw_surveydone_event_callback(struct adapter * adapter,u8 * pbuf)722 void rtw_surveydone_event_callback(struct adapter *adapter, u8 *pbuf)
723 {
724 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
725 u8 timer_cancelled = 0;
726
727 spin_lock_bh(&pmlmepriv->lock);
728
729 if (pmlmepriv->wps_probe_req_ie) {
730 pmlmepriv->wps_probe_req_ie_len = 0;
731 kfree(pmlmepriv->wps_probe_req_ie);
732 pmlmepriv->wps_probe_req_ie = NULL;
733 }
734
735 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
736 timer_cancelled = 1;
737
738 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
739 }
740
741 spin_unlock_bh(&pmlmepriv->lock);
742
743 if (timer_cancelled)
744 _cancel_timer(&pmlmepriv->scan_to_timer, &timer_cancelled);
745
746 spin_lock_bh(&pmlmepriv->lock);
747 rtw_set_signal_stat_timer(&adapter->recvpriv);
748
749 if (pmlmepriv->to_join) {
750 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
751 if (!check_fwstate(pmlmepriv, _FW_LINKED)) {
752 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
753
754 if (rtw_select_and_join_from_scanned_queue(pmlmepriv) == _SUCCESS) {
755 _set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
756 } else {
757 struct wlan_bssid_ex *pdev_network = &adapter->registrypriv.dev_network;
758 u8 *pibss = adapter->registrypriv.dev_network.MacAddress;
759
760 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
761
762 memset(&pdev_network->Ssid, 0, sizeof(struct ndis_802_11_ssid));
763 memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
764
765 rtw_update_registrypriv_dev_network(adapter);
766 rtw_generate_random_ibss(pibss);
767
768 pmlmepriv->fw_state = WIFI_ADHOC_MASTER_STATE;
769
770 rtw_createbss_cmd(adapter);
771 pmlmepriv->to_join = false;
772 }
773 }
774 } else {
775 int s_ret;
776 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
777 pmlmepriv->to_join = false;
778 s_ret = rtw_select_and_join_from_scanned_queue(pmlmepriv);
779 if (_SUCCESS == s_ret) {
780 _set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
781 } else if (s_ret == 2) { /* there is no need to wait for join */
782 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
783 rtw_indicate_connect(adapter);
784 } else {
785 DBG_88E("try_to_join, but select scanning queue fail, to_roaming:%d\n",
786 pmlmepriv->to_roaming);
787 if (rtw_to_roaming(adapter) != 0) {
788 if (--pmlmepriv->to_roaming == 0 ||
789 _SUCCESS != rtw_sitesurvey_cmd(adapter, &pmlmepriv->assoc_ssid, 1, NULL, 0)) {
790 rtw_set_roaming(adapter, 0);
791 rtw_free_assoc_resources(adapter, 1);
792 rtw_indicate_disconnect(adapter);
793 } else {
794 pmlmepriv->to_join = true;
795 }
796 } else {
797 rtw_indicate_disconnect(adapter);
798 }
799 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
800 }
801 }
802 }
803
804 indicate_wx_scan_complete_event(adapter);
805
806 spin_unlock_bh(&pmlmepriv->lock);
807
808 if (check_fwstate(pmlmepriv, _FW_LINKED))
809 p2p_ps_wk_cmd(adapter, P2P_PS_SCAN_DONE, 0);
810
811 rtw_os_xmit_schedule(adapter);
812 }
813
rtw_dummy_event_callback(struct adapter * adapter,u8 * pbuf)814 void rtw_dummy_event_callback(struct adapter *adapter, u8 *pbuf)
815 {
816 }
817
rtw_fwdbg_event_callback(struct adapter * adapter,u8 * pbuf)818 void rtw_fwdbg_event_callback(struct adapter *adapter, u8 *pbuf)
819 {
820 }
821
free_scanqueue(struct mlme_priv * pmlmepriv)822 static void free_scanqueue(struct mlme_priv *pmlmepriv)
823 {
824 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
825 struct __queue *scan_queue = &pmlmepriv->scanned_queue;
826 struct list_head *plist, *phead, *ptemp;
827
828 spin_lock_bh(&scan_queue->lock);
829 spin_lock_bh(&free_queue->lock);
830
831 phead = get_list_head(scan_queue);
832 plist = phead->next;
833
834 while (plist != phead) {
835 ptemp = plist->next;
836 list_del_init(plist);
837 list_add_tail(plist, &free_queue->queue);
838 plist = ptemp;
839 pmlmepriv->num_of_scanned--;
840 }
841
842 spin_unlock_bh(&free_queue->lock);
843 spin_unlock_bh(&scan_queue->lock);
844 }
845
846 /*
847 *rtw_free_assoc_resources: the caller has to lock pmlmepriv->lock
848 */
rtw_free_assoc_resources(struct adapter * adapter,int lock_scanned_queue)849 void rtw_free_assoc_resources(struct adapter *adapter, int lock_scanned_queue)
850 {
851 struct wlan_network *pwlan = NULL;
852 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
853 struct sta_priv *pstapriv = &adapter->stapriv;
854 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
855
856 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE)) {
857 struct sta_info *psta;
858
859 psta = rtw_get_stainfo(&adapter->stapriv, tgt_network->network.MacAddress);
860
861 spin_lock_bh(&pstapriv->sta_hash_lock);
862 rtw_free_stainfo(adapter, psta);
863 spin_unlock_bh(&pstapriv->sta_hash_lock);
864 }
865
866 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE | WIFI_AP_STATE)) {
867 struct sta_info *psta;
868
869 rtw_free_all_stainfo(adapter);
870
871 psta = rtw_get_bcmc_stainfo(adapter);
872 spin_lock_bh(&pstapriv->sta_hash_lock);
873 rtw_free_stainfo(adapter, psta);
874 spin_unlock_bh(&pstapriv->sta_hash_lock);
875
876 rtw_init_bcmc_stainfo(adapter);
877 }
878
879 if (lock_scanned_queue)
880 spin_lock_bh(&pmlmepriv->scanned_queue.lock);
881
882 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
883 if (pwlan)
884 pwlan->fixed = false;
885
886 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) && (adapter->stapriv.asoc_sta_count == 1)))
887 rtw_free_network_nolock(pmlmepriv, pwlan);
888
889 if (lock_scanned_queue)
890 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
891 pmlmepriv->key_mask = 0;
892
893 }
894
895 /*
896 *rtw_indicate_connect: the caller has to lock pmlmepriv->lock
897 */
rtw_indicate_connect(struct adapter * padapter)898 void rtw_indicate_connect(struct adapter *padapter)
899 {
900 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
901
902 pmlmepriv->to_join = false;
903
904 if (!check_fwstate(&padapter->mlmepriv, _FW_LINKED)) {
905 set_fwstate(pmlmepriv, _FW_LINKED);
906
907 rtw_led_control(padapter, LED_CTL_LINK);
908
909 rtw_os_indicate_connect(padapter);
910 }
911
912 pmlmepriv->to_roaming = 0;
913
914 rtw_set_scan_deny(padapter, 3000);
915 }
916
917 /*
918 *rtw_indicate_disconnect: the caller has to lock pmlmepriv->lock
919 */
rtw_indicate_disconnect(struct adapter * padapter)920 void rtw_indicate_disconnect(struct adapter *padapter)
921 {
922 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
923
924 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING | WIFI_UNDER_WPS);
925
926 if (pmlmepriv->to_roaming > 0)
927 _clr_fwstate_(pmlmepriv, _FW_LINKED);
928
929 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) ||
930 (pmlmepriv->to_roaming <= 0)) {
931 rtw_os_indicate_disconnect(padapter);
932
933 _clr_fwstate_(pmlmepriv, _FW_LINKED);
934 rtw_led_control(padapter, LED_CTL_NO_LINK);
935 rtw_clear_scan_deny(padapter);
936 }
937 p2p_ps_wk_cmd(padapter, P2P_PS_DISABLE, 1);
938
939 rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_DISCONNECT, 1);
940
941 }
942
rtw_indicate_scan_done(struct adapter * padapter,bool aborted)943 inline void rtw_indicate_scan_done(struct adapter *padapter, bool aborted)
944 {
945 rtw_os_indicate_scan_done(padapter, aborted);
946 }
947
rtw_scan_abort(struct adapter * adapter)948 void rtw_scan_abort(struct adapter *adapter)
949 {
950 u32 start;
951 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
952 struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
953
954 start = jiffies;
955 pmlmeext->scan_abort = true;
956 while (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY) &&
957 rtw_get_passing_time_ms(start) <= 200) {
958 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
959 break;
960 DBG_88E(FUNC_NDEV_FMT"fw_state=_FW_UNDER_SURVEY!\n", FUNC_NDEV_ARG(adapter->pnetdev));
961 msleep(20);
962 }
963 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
964 if (!adapter->bDriverStopped && !adapter->bSurpriseRemoved)
965 DBG_88E(FUNC_NDEV_FMT"waiting for scan_abort time out!\n", FUNC_NDEV_ARG(adapter->pnetdev));
966 rtw_indicate_scan_done(adapter, true);
967 }
968 pmlmeext->scan_abort = false;
969 }
970
rtw_joinbss_update_stainfo(struct adapter * padapter,struct wlan_network * pnetwork)971 static struct sta_info *rtw_joinbss_update_stainfo(struct adapter *padapter, struct wlan_network *pnetwork)
972 {
973 int i;
974 struct sta_info *bmc_sta, *psta = NULL;
975 struct recv_reorder_ctrl *preorder_ctrl;
976 struct sta_priv *pstapriv = &padapter->stapriv;
977
978 psta = rtw_get_stainfo(pstapriv, pnetwork->network.MacAddress);
979 if (!psta)
980 psta = rtw_alloc_stainfo(pstapriv, pnetwork->network.MacAddress);
981
982 if (psta) { /* update ptarget_sta */
983 DBG_88E("%s\n", __func__);
984 psta->aid = pnetwork->join_res;
985 psta->mac_id = 0;
986 /* sta mode */
987 rtw_hal_set_odm_var(padapter, HAL_ODM_STA_INFO, psta, true);
988 /* security related */
989 if (padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
990 padapter->securitypriv.binstallGrpkey = false;
991 padapter->securitypriv.busetkipkey = false;
992 padapter->securitypriv.bgrpkey_handshake = false;
993 psta->ieee8021x_blocked = true;
994 psta->dot118021XPrivacy = padapter->securitypriv.dot11PrivacyAlgrthm;
995 memset((u8 *)&psta->dot118021x_UncstKey, 0, sizeof(union Keytype));
996 memset((u8 *)&psta->dot11tkiprxmickey, 0, sizeof(union Keytype));
997 memset((u8 *)&psta->dot11tkiptxmickey, 0, sizeof(union Keytype));
998 memset((u8 *)&psta->dot11txpn, 0, sizeof(union pn48));
999 memset((u8 *)&psta->dot11rxpn, 0, sizeof(union pn48));
1000 }
1001 /* Commented by Albert 2012/07/21 */
1002 /* When doing the WPS, the wps_ie_len won't equal to 0 */
1003 /* And the Wi-Fi driver shouldn't allow the data packet to be tramsmitted. */
1004 if (padapter->securitypriv.wps_ie_len != 0) {
1005 psta->ieee8021x_blocked = true;
1006 padapter->securitypriv.wps_ie_len = 0;
1007 }
1008 /* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info */
1009 /* if A-MPDU Rx is enabled, resetting rx_ordering_ctrl wstart_b(indicate_seq) to default value = 0xffff */
1010 /* todo: check if AP can send A-MPDU packets */
1011 for (i = 0; i < 16; i++) {
1012 /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
1013 preorder_ctrl = &psta->recvreorder_ctrl[i];
1014 preorder_ctrl->enable = false;
1015 preorder_ctrl->indicate_seq = 0xffff;
1016 preorder_ctrl->wend_b = 0xffff;
1017 preorder_ctrl->wsize_b = 64;/* max_ampdu_sz; ex. 32(kbytes) -> wsize_b = 32 */
1018 }
1019 bmc_sta = rtw_get_bcmc_stainfo(padapter);
1020 if (bmc_sta) {
1021 for (i = 0; i < 16; i++) {
1022 /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
1023 preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
1024 preorder_ctrl->enable = false;
1025 preorder_ctrl->indicate_seq = 0xffff;
1026 preorder_ctrl->wend_b = 0xffff;
1027 preorder_ctrl->wsize_b = 64;/* max_ampdu_sz; ex. 32(kbytes) -> wsize_b = 32 */
1028 }
1029 }
1030 /* misc. */
1031 update_sta_info(padapter, psta);
1032 }
1033 return psta;
1034 }
1035
1036 /* pnetwork: returns from rtw_joinbss_event_callback */
1037 /* ptarget_wlan: found from scanned_queue */
rtw_joinbss_update_network(struct adapter * padapter,struct wlan_network * ptarget_wlan,struct wlan_network * pnetwork)1038 static void rtw_joinbss_update_network(struct adapter *padapter, struct wlan_network *ptarget_wlan, struct wlan_network *pnetwork)
1039 {
1040 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1041 struct wlan_network *cur_network = &pmlmepriv->cur_network;
1042
1043 DBG_88E("%s\n", __func__);
1044
1045 /* why not use ptarget_wlan?? */
1046 memcpy(&cur_network->network, &pnetwork->network, pnetwork->network.Length);
1047 /* some IEs in pnetwork is wrong, so we should use ptarget_wlan IEs */
1048 cur_network->network.IELength = ptarget_wlan->network.IELength;
1049 memcpy(&cur_network->network.IEs[0], &ptarget_wlan->network.IEs[0], MAX_IE_SZ);
1050
1051 cur_network->aid = pnetwork->join_res;
1052
1053 rtw_set_signal_stat_timer(&padapter->recvpriv);
1054 padapter->recvpriv.signal_strength = ptarget_wlan->network.PhyInfo.SignalStrength;
1055 padapter->recvpriv.signal_qual = ptarget_wlan->network.PhyInfo.SignalQuality;
1056 /* the ptarget_wlan->network.Rssi is raw data, we use ptarget_wlan->network.PhyInfo.SignalStrength instead (has scaled) */
1057 padapter->recvpriv.rssi = translate_percentage_to_dbm(ptarget_wlan->network.PhyInfo.SignalStrength);
1058 rtw_set_signal_stat_timer(&padapter->recvpriv);
1059
1060 /* update fw_state will clr _FW_UNDER_LINKING here indirectly */
1061 switch (pnetwork->network.InfrastructureMode) {
1062 case Ndis802_11Infrastructure:
1063 if (pmlmepriv->fw_state & WIFI_UNDER_WPS)
1064 pmlmepriv->fw_state = WIFI_STATION_STATE | WIFI_UNDER_WPS;
1065 else
1066 pmlmepriv->fw_state = WIFI_STATION_STATE;
1067 break;
1068 case Ndis802_11IBSS:
1069 pmlmepriv->fw_state = WIFI_ADHOC_STATE;
1070 break;
1071 default:
1072 pmlmepriv->fw_state = WIFI_NULL_STATE;
1073 break;
1074 }
1075
1076 rtw_update_protection(padapter, (cur_network->network.IEs) +
1077 sizeof(struct ndis_802_11_fixed_ie),
1078 (cur_network->network.IELength));
1079 rtw_update_ht_cap(padapter, cur_network->network.IEs, cur_network->network.IELength);
1080 }
1081
1082 /* Notes: the function could be > passive_level (the same context as Rx tasklet) */
1083 /* pnetwork: returns from rtw_joinbss_event_callback */
1084 /* ptarget_wlan: found from scanned_queue */
1085 /* if join_res > 0, for (fw_state == WIFI_STATION_STATE), we check if "ptarget_sta" & "ptarget_wlan" exist. */
1086 /* if join_res > 0, for (fw_state == WIFI_ADHOC_STATE), we only check if "ptarget_wlan" exist. */
1087 /* if join_res > 0, update "cur_network->network" from "pnetwork->network" if (ptarget_wlan != NULL). */
1088
rtw_joinbss_event_prehandle(struct adapter * adapter,u8 * pbuf)1089 void rtw_joinbss_event_prehandle(struct adapter *adapter, u8 *pbuf)
1090 {
1091 u8 timer_cancelled;
1092 struct sta_info *ptarget_sta = NULL, *pcur_sta = NULL;
1093 struct sta_priv *pstapriv = &adapter->stapriv;
1094 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1095 struct wlan_network *pnetwork = (struct wlan_network *)pbuf;
1096 struct wlan_network *cur_network = &pmlmepriv->cur_network;
1097 struct wlan_network *pcur_wlan = NULL, *ptarget_wlan = NULL;
1098 unsigned int the_same_macaddr = false;
1099
1100 rtw_get_encrypt_decrypt_from_registrypriv(adapter);
1101
1102 the_same_macaddr = !memcmp(pnetwork->network.MacAddress, cur_network->network.MacAddress, ETH_ALEN);
1103
1104 pnetwork->network.Length = get_wlan_bssid_ex_sz(&pnetwork->network);
1105 if (pnetwork->network.Length > sizeof(struct wlan_bssid_ex))
1106 return;
1107
1108 spin_lock_bh(&pmlmepriv->lock);
1109
1110 if (pnetwork->join_res > 0) {
1111 spin_lock_bh(&pmlmepriv->scanned_queue.lock);
1112 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
1113 /* s1. find ptarget_wlan */
1114 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1115 if (the_same_macaddr) {
1116 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1117 } else {
1118 pcur_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1119 if (pcur_wlan)
1120 pcur_wlan->fixed = false;
1121
1122 pcur_sta = rtw_get_stainfo(pstapriv, cur_network->network.MacAddress);
1123 if (pcur_sta) {
1124 spin_lock_bh(&pstapriv->sta_hash_lock);
1125 rtw_free_stainfo(adapter, pcur_sta);
1126 spin_unlock_bh(&pstapriv->sta_hash_lock);
1127 }
1128
1129 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->network.MacAddress);
1130 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
1131 if (ptarget_wlan)
1132 ptarget_wlan->fixed = true;
1133 }
1134 }
1135 } else {
1136 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->network.MacAddress);
1137 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
1138 if (ptarget_wlan)
1139 ptarget_wlan->fixed = true;
1140 }
1141 }
1142
1143 /* s2. update cur_network */
1144 if (ptarget_wlan) {
1145 rtw_joinbss_update_network(adapter, ptarget_wlan, pnetwork);
1146 } else {
1147 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1148 goto ignore_joinbss_callback;
1149 }
1150
1151 /* s3. find ptarget_sta & update ptarget_sta after update cur_network only for station mode */
1152 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
1153 ptarget_sta = rtw_joinbss_update_stainfo(adapter, pnetwork);
1154 if (!ptarget_sta) {
1155 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1156 goto ignore_joinbss_callback;
1157 }
1158 }
1159
1160 /* s4. indicate connect */
1161 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
1162 pmlmepriv->cur_network_scanned = ptarget_wlan;
1163 rtw_indicate_connect(adapter);
1164 }
1165
1166 /* s5. Cancle assoc_timer */
1167 _cancel_timer(&pmlmepriv->assoc_timer, &timer_cancelled);
1168 } else {
1169 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1170 goto ignore_joinbss_callback;
1171 }
1172
1173 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1174
1175 } else if (pnetwork->join_res == -4) {
1176 rtw_reset_securitypriv(adapter);
1177 _set_timer(&pmlmepriv->assoc_timer, 1);
1178
1179 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING))
1180 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1181 } else { /* if join_res < 0 (join fails), then try again */
1182 _set_timer(&pmlmepriv->assoc_timer, 1);
1183 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1184 }
1185
1186 ignore_joinbss_callback:
1187 spin_unlock_bh(&pmlmepriv->lock);
1188 }
1189
rtw_joinbss_event_callback(struct adapter * adapter,u8 * pbuf)1190 void rtw_joinbss_event_callback(struct adapter *adapter, u8 *pbuf)
1191 {
1192 struct wlan_network *pnetwork = (struct wlan_network *)pbuf;
1193
1194 mlmeext_joinbss_event_callback(adapter, pnetwork->join_res);
1195
1196 rtw_os_xmit_schedule(adapter);
1197
1198 }
1199
search_max_mac_id(struct adapter * padapter)1200 static u8 search_max_mac_id(struct adapter *padapter)
1201 {
1202 u8 mac_id;
1203 #if defined(CONFIG_88EU_AP_MODE)
1204 u8 aid;
1205 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1206 struct sta_priv *pstapriv = &padapter->stapriv;
1207 #endif
1208 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1209 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
1210
1211 #if defined(CONFIG_88EU_AP_MODE)
1212 if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
1213 for (aid = (pstapriv->max_num_sta); aid > 0; aid--) {
1214 if (pstapriv->sta_aid[aid - 1])
1215 break;
1216 }
1217 mac_id = aid + 1;
1218 } else
1219 #endif
1220 {/* adhoc id = 31~2 */
1221 for (mac_id = (NUM_STA - 1); mac_id >= IBSS_START_MAC_ID; mac_id--) {
1222 if (pmlmeinfo->FW_sta_info[mac_id].status == 1)
1223 break;
1224 }
1225 }
1226 return mac_id;
1227 }
1228
1229 /* FOR AP , AD-HOC mode */
rtw_sta_media_status_rpt(struct adapter * adapter,struct sta_info * psta,u32 mstatus)1230 void rtw_sta_media_status_rpt(struct adapter *adapter, struct sta_info *psta,
1231 u32 mstatus)
1232 {
1233 u16 media_status_rpt;
1234 u8 macid;
1235
1236 if (!psta)
1237 return;
1238
1239 macid = search_max_mac_id(adapter);
1240 rtw_hal_set_hwreg(adapter, HW_VAR_TX_RPT_MAX_MACID, (u8 *)&macid);
1241 /* MACID|OPMODE:1 connect */
1242 media_status_rpt = (u16)((psta->mac_id << 8) | mstatus);
1243 rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT,
1244 (u8 *)&media_status_rpt);
1245 }
1246
rtw_stassoc_event_callback(struct adapter * adapter,u8 * pbuf)1247 void rtw_stassoc_event_callback(struct adapter *adapter, u8 *pbuf)
1248 {
1249 struct sta_info *psta;
1250 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1251 struct stassoc_event *pstassoc = (struct stassoc_event *)pbuf;
1252 struct wlan_network *cur_network = &pmlmepriv->cur_network;
1253 struct wlan_network *ptarget_wlan = NULL;
1254
1255 if (!rtw_access_ctrl(adapter, pstassoc->macaddr))
1256 return;
1257
1258 #if defined(CONFIG_88EU_AP_MODE)
1259 if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
1260 psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1261 if (psta)
1262 rtw_indicate_sta_assoc_event(adapter, psta);
1263 return;
1264 }
1265 #endif
1266 /* for AD-HOC mode */
1267 psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1268 if (psta)
1269 /* the sta have been in sta_info_queue => do nothing */
1270 return; /* between drv has received this event before and fw have not yet to set key to CAM_ENTRY) */
1271 psta = rtw_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
1272 if (!psta)
1273 return;
1274 /* to do: init sta_info variable */
1275 psta->qos_option = 0;
1276 psta->mac_id = (uint)pstassoc->cam_id;
1277 DBG_88E("%s\n", __func__);
1278 /* for ad-hoc mode */
1279 rtw_hal_set_odm_var(adapter, HAL_ODM_STA_INFO, psta, true);
1280 rtw_sta_media_status_rpt(adapter, psta, 1);
1281 if (adapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X)
1282 psta->dot118021XPrivacy = adapter->securitypriv.dot11PrivacyAlgrthm;
1283 psta->ieee8021x_blocked = false;
1284 spin_lock_bh(&pmlmepriv->lock);
1285 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) ||
1286 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE))) {
1287 if (adapter->stapriv.asoc_sta_count == 2) {
1288 spin_lock_bh(&pmlmepriv->scanned_queue.lock);
1289 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1290 pmlmepriv->cur_network_scanned = ptarget_wlan;
1291 if (ptarget_wlan)
1292 ptarget_wlan->fixed = true;
1293 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1294 /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
1295 rtw_indicate_connect(adapter);
1296 }
1297 }
1298 spin_unlock_bh(&pmlmepriv->lock);
1299 mlmeext_sta_add_event_callback(adapter, psta);
1300 }
1301
rtw_stadel_event_callback(struct adapter * adapter,u8 * pbuf)1302 void rtw_stadel_event_callback(struct adapter *adapter, u8 *pbuf)
1303 {
1304 int mac_id = -1;
1305 struct sta_info *psta;
1306 struct wlan_network *pwlan = NULL;
1307 struct wlan_bssid_ex *pdev_network = NULL;
1308 u8 *pibss = NULL;
1309 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1310 struct stadel_event *pstadel = (struct stadel_event *)pbuf;
1311 struct sta_priv *pstapriv = &adapter->stapriv;
1312 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
1313
1314 psta = rtw_get_stainfo(&adapter->stapriv, pstadel->macaddr);
1315 if (psta)
1316 mac_id = psta->mac_id;
1317 else
1318 mac_id = pstadel->mac_id;
1319
1320 DBG_88E("%s(mac_id=%d)=%pM\n", __func__, mac_id, pstadel->macaddr);
1321
1322 if (mac_id >= 0) {
1323 u16 media_status;
1324 media_status = (mac_id << 8) | 0; /* MACID|OPMODE:0 means disconnect */
1325 /* for STA, AP, ADHOC mode, report disconnect stauts to FW */
1326 rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status);
1327 }
1328
1329 if (check_fwstate(pmlmepriv, WIFI_AP_STATE))
1330 return;
1331
1332 mlmeext_sta_del_event_callback(adapter);
1333
1334 spin_lock_bh(&pmlmepriv->lock);
1335
1336 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
1337 if (adapter->registrypriv.wifi_spec == 1)
1338 rtw_set_roaming(adapter, 0); /* don't roam */
1339 else if (rtw_to_roaming(adapter) > 0)
1340 pmlmepriv->to_roaming--; /* this stadel_event is caused by roaming, decrease to_roaming */
1341 else if (rtw_to_roaming(adapter) == 0)
1342 rtw_set_roaming(adapter,
1343 adapter->registrypriv.max_roaming_times);
1344
1345 if (*((unsigned short *)(pstadel->rsvd)) != WLAN_REASON_EXPIRATION_CHK)
1346 rtw_set_roaming(adapter, 0); /* don't roam */
1347
1348 rtw_free_uc_swdec_pending_queue(adapter);
1349
1350 rtw_free_assoc_resources(adapter, 1);
1351 rtw_indicate_disconnect(adapter);
1352 spin_lock_bh(&pmlmepriv->scanned_queue.lock);
1353 /* remove the network entry in scanned_queue */
1354 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
1355 if (pwlan) {
1356 pwlan->fixed = false;
1357 rtw_free_network_nolock(pmlmepriv, pwlan);
1358 }
1359 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1360 _rtw_roaming(adapter, tgt_network);
1361 }
1362 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
1363 check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1364 spin_lock_bh(&pstapriv->sta_hash_lock);
1365 rtw_free_stainfo(adapter, psta);
1366 spin_unlock_bh(&pstapriv->sta_hash_lock);
1367
1368 if (adapter->stapriv.asoc_sta_count == 1) { /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
1369 spin_lock_bh(&pmlmepriv->scanned_queue.lock);
1370 /* free old ibss network */
1371 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
1372 if (pwlan) {
1373 pwlan->fixed = false;
1374 rtw_free_network_nolock(pmlmepriv, pwlan);
1375 }
1376 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1377 /* re-create ibss */
1378 pdev_network = &adapter->registrypriv.dev_network;
1379 pibss = adapter->registrypriv.dev_network.MacAddress;
1380
1381 memcpy(pdev_network, &tgt_network->network, get_wlan_bssid_ex_sz(&tgt_network->network));
1382
1383 memset(&pdev_network->Ssid, 0, sizeof(struct ndis_802_11_ssid));
1384 memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
1385
1386 rtw_update_registrypriv_dev_network(adapter);
1387
1388 rtw_generate_random_ibss(pibss);
1389
1390 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1391 set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
1392 _clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
1393 }
1394
1395 rtw_createbss_cmd(adapter);
1396 }
1397 }
1398 spin_unlock_bh(&pmlmepriv->lock);
1399
1400 }
1401
1402 /*
1403 * _rtw_join_timeout_handler - Timeout/faliure handler for CMD JoinBss
1404 * @adapter: pointer to struct adapter structure
1405 */
_rtw_join_timeout_handler(struct adapter * adapter)1406 void _rtw_join_timeout_handler (struct adapter *adapter)
1407 {
1408 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1409 int do_join_r;
1410
1411 DBG_88E("%s, fw_state=%x\n", __func__, get_fwstate(pmlmepriv));
1412
1413 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1414 return;
1415
1416 spin_lock_bh(&pmlmepriv->lock);
1417
1418 if (rtw_to_roaming(adapter) > 0) { /* join timeout caused by roaming */
1419 while (1) {
1420 pmlmepriv->to_roaming--;
1421 if (rtw_to_roaming(adapter) != 0) { /* try another */
1422 DBG_88E("%s try another roaming\n", __func__);
1423 do_join_r = rtw_do_join(adapter);
1424 if (_SUCCESS != do_join_r) {
1425 DBG_88E("%s roaming do_join return %d\n", __func__, do_join_r);
1426 continue;
1427 }
1428 break;
1429 } else {
1430 DBG_88E("%s We've try roaming but fail\n", __func__);
1431 rtw_indicate_disconnect(adapter);
1432 break;
1433 }
1434 }
1435 } else {
1436 rtw_indicate_disconnect(adapter);
1437 free_scanqueue(pmlmepriv);/* */
1438 }
1439 spin_unlock_bh(&pmlmepriv->lock);
1440
1441 }
1442
1443 /*
1444 * rtw_scan_timeout_handler - Timeout/Faliure handler for CMD SiteSurvey
1445 * @adapter: pointer to struct adapter structure
1446 */
rtw_scan_timeout_handler(struct adapter * adapter)1447 void rtw_scan_timeout_handler (struct adapter *adapter)
1448 {
1449 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1450
1451 DBG_88E(FUNC_ADPT_FMT" fw_state=%x\n", FUNC_ADPT_ARG(adapter), get_fwstate(pmlmepriv));
1452 spin_lock_bh(&pmlmepriv->lock);
1453 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
1454 spin_unlock_bh(&pmlmepriv->lock);
1455 rtw_indicate_scan_done(adapter, true);
1456 }
1457
rtw_auto_scan_handler(struct adapter * padapter)1458 static void rtw_auto_scan_handler(struct adapter *padapter)
1459 {
1460 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1461
1462 /* auto site survey per 60sec */
1463 if (pmlmepriv->scan_interval > 0) {
1464 pmlmepriv->scan_interval--;
1465 if (pmlmepriv->scan_interval == 0) {
1466 DBG_88E("%s\n", __func__);
1467 rtw_set_802_11_bssid_list_scan(padapter, NULL, 0);
1468 pmlmepriv->scan_interval = SCAN_INTERVAL;/* 30*2 sec = 60sec */
1469 }
1470 }
1471 }
1472
rtw_dynamic_check_timer_handlder(struct adapter * adapter)1473 void rtw_dynamic_check_timer_handlder(struct adapter *adapter)
1474 {
1475 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1476 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1477
1478 if (!adapter)
1479 return;
1480 if (!adapter->hw_init_completed)
1481 return;
1482 if ((adapter->bDriverStopped) || (adapter->bSurpriseRemoved))
1483 return;
1484 if (adapter->net_closed)
1485 return;
1486 rtw_dynamic_chk_wk_cmd(adapter);
1487
1488 if (pregistrypriv->wifi_spec == 1) {
1489 #ifdef CONFIG_88EU_P2P
1490 struct wifidirect_info *pwdinfo = &adapter->wdinfo;
1491 if (rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE))
1492 #endif
1493 {
1494 /* auto site survey */
1495 rtw_auto_scan_handler(adapter);
1496 }
1497 }
1498
1499 rcu_read_lock();
1500
1501 if (rcu_dereference(adapter->pnetdev->rx_handler_data) &&
1502 check_fwstate(pmlmepriv, WIFI_STATION_STATE | WIFI_ADHOC_STATE)) {
1503 /* expire NAT2.5 entry */
1504 nat25_db_expire(adapter);
1505
1506 if (adapter->pppoe_connection_in_progress > 0) {
1507 adapter->pppoe_connection_in_progress--;
1508 }
1509
1510 /* due to rtw_dynamic_check_timer_handlder() is called every 2 seconds */
1511 if (adapter->pppoe_connection_in_progress > 0) {
1512 adapter->pppoe_connection_in_progress--;
1513 }
1514 }
1515
1516 rcu_read_unlock();
1517 }
1518
1519 #define RTW_SCAN_RESULT_EXPIRE 2000
1520
1521 /*
1522 * Select a new join candidate from the original @param candidate and @param competitor
1523 * @return true: candidate is updated
1524 * @return false: candidate is not updated
1525 */
rtw_check_join_candidate(struct mlme_priv * pmlmepriv,struct wlan_network ** candidate,struct wlan_network * competitor)1526 static int rtw_check_join_candidate(struct mlme_priv *pmlmepriv
1527 , struct wlan_network **candidate, struct wlan_network *competitor)
1528 {
1529 int updated = false;
1530 struct adapter *adapter = container_of(pmlmepriv, struct adapter, mlmepriv);
1531
1532 /* check bssid, if needed */
1533 if (pmlmepriv->assoc_by_bssid) {
1534 if (memcmp(competitor->network.MacAddress, pmlmepriv->assoc_bssid, ETH_ALEN))
1535 goto exit;
1536 }
1537
1538 /* check ssid, if needed */
1539 if (pmlmepriv->assoc_ssid.SsidLength) {
1540 if (competitor->network.Ssid.SsidLength != pmlmepriv->assoc_ssid.SsidLength ||
1541 memcmp(competitor->network.Ssid.Ssid, pmlmepriv->assoc_ssid.Ssid, pmlmepriv->assoc_ssid.SsidLength))
1542 goto exit;
1543 }
1544
1545 if (!rtw_is_desired_network(adapter, competitor))
1546 goto exit;
1547
1548 if (rtw_to_roaming(adapter) > 0) {
1549 if (rtw_get_passing_time_ms((u32)competitor->last_scanned) >= RTW_SCAN_RESULT_EXPIRE ||
1550 !is_same_ess(&competitor->network, &pmlmepriv->cur_network.network))
1551 goto exit;
1552 }
1553
1554 if (!*candidate || (*candidate)->network.Rssi < competitor->network.Rssi) {
1555 *candidate = competitor;
1556 updated = true;
1557 }
1558 if (updated) {
1559 DBG_88E("[by_bssid:%u][assoc_ssid:%s]new candidate: %s(%pM rssi:%d\n",
1560 pmlmepriv->assoc_by_bssid,
1561 pmlmepriv->assoc_ssid.Ssid,
1562 (*candidate)->network.Ssid.Ssid,
1563 (*candidate)->network.MacAddress,
1564 (int)(*candidate)->network.Rssi);
1565 DBG_88E("[to_roaming:%u]\n", rtw_to_roaming(adapter));
1566 }
1567
1568 exit:
1569 return updated;
1570 }
1571
1572 /*
1573 Calling context:
1574 The caller of the sub-routine will be in critical section...
1575 The caller must hold the following spinlock
1576 pmlmepriv->lock
1577 */
1578
rtw_select_and_join_from_scanned_queue(struct mlme_priv * pmlmepriv)1579 int rtw_select_and_join_from_scanned_queue(struct mlme_priv *pmlmepriv)
1580 {
1581 int ret;
1582 struct list_head *phead;
1583 struct adapter *adapter;
1584 struct __queue *queue = &pmlmepriv->scanned_queue;
1585 struct wlan_network *pnetwork = NULL;
1586 struct wlan_network *candidate = NULL;
1587 u8 supp_ant_div = false;
1588
1589 spin_lock_bh(&pmlmepriv->scanned_queue.lock);
1590 phead = get_list_head(queue);
1591 adapter = (struct adapter *)pmlmepriv->nic_hdl;
1592 pmlmepriv->pscanned = phead->next;
1593 while (phead != pmlmepriv->pscanned) {
1594 pnetwork = container_of(pmlmepriv->pscanned, struct wlan_network, list);
1595 if (!pnetwork) {
1596 ret = _FAIL;
1597 goto exit;
1598 }
1599 pmlmepriv->pscanned = pmlmepriv->pscanned->next;
1600 rtw_check_join_candidate(pmlmepriv, &candidate, pnetwork);
1601 }
1602 if (!candidate) {
1603 DBG_88E("%s: return _FAIL(candidate==NULL)\n", __func__);
1604 ret = _FAIL;
1605 goto exit;
1606 } else {
1607 DBG_88E("%s: candidate: %s(%pM ch:%u)\n", __func__,
1608 candidate->network.Ssid.Ssid, candidate->network.MacAddress,
1609 candidate->network.Configuration.DSConfig);
1610 }
1611
1612 /* check for situation of _FW_LINKED */
1613 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1614 DBG_88E("%s: _FW_LINKED while ask_for_joinbss!!!\n", __func__);
1615
1616 rtw_disassoc_cmd(adapter, 0, true);
1617 rtw_indicate_disconnect(adapter);
1618 rtw_free_assoc_resources(adapter, 0);
1619 }
1620
1621 rtw_hal_get_def_var(adapter, HAL_DEF_IS_SUPPORT_ANT_DIV, &(supp_ant_div));
1622 if (supp_ant_div) {
1623 u8 cur_ant;
1624 rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(cur_ant));
1625 DBG_88E("#### Opt_Ant_(%s), cur_Ant(%s)\n",
1626 (2 == candidate->network.PhyInfo.Optimum_antenna) ? "A" : "B",
1627 (2 == cur_ant) ? "A" : "B"
1628 );
1629 }
1630
1631 ret = rtw_joinbss_cmd(adapter, candidate);
1632
1633 exit:
1634 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1635
1636 return ret;
1637 }
1638
rtw_set_auth(struct adapter * adapter,struct security_priv * psecuritypriv)1639 int rtw_set_auth(struct adapter *adapter, struct security_priv *psecuritypriv)
1640 {
1641 struct cmd_obj *pcmd;
1642 struct setauth_parm *psetauthparm;
1643 struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
1644 int res = _SUCCESS;
1645
1646 pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
1647 if (!pcmd) {
1648 res = _FAIL; /* try again */
1649 goto exit;
1650 }
1651
1652 psetauthparm = kzalloc(sizeof(struct setauth_parm), GFP_KERNEL);
1653 if (!psetauthparm) {
1654 kfree(pcmd);
1655 res = _FAIL;
1656 goto exit;
1657 }
1658 memset(psetauthparm, 0, sizeof(struct setauth_parm));
1659 psetauthparm->mode = (unsigned char)psecuritypriv->dot11AuthAlgrthm;
1660 pcmd->cmdcode = _SetAuth_CMD_;
1661 pcmd->parmbuf = (unsigned char *)psetauthparm;
1662 pcmd->cmdsz = (sizeof(struct setauth_parm));
1663 pcmd->rsp = NULL;
1664 pcmd->rspsz = 0;
1665 INIT_LIST_HEAD(&pcmd->list);
1666 res = rtw_enqueue_cmd(pcmdpriv, pcmd);
1667 exit:
1668
1669 return res;
1670 }
1671
rtw_set_key(struct adapter * adapter,struct security_priv * psecuritypriv,int keyid,u8 set_tx)1672 int rtw_set_key(struct adapter *adapter, struct security_priv *psecuritypriv, int keyid, u8 set_tx)
1673 {
1674 u8 keylen;
1675 struct cmd_obj *pcmd;
1676 struct setkey_parm *psetkeyparm;
1677 struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
1678 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1679 int res = _SUCCESS;
1680
1681 pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
1682 if (!pcmd) {
1683 res = _FAIL; /* try again */
1684 goto exit;
1685 }
1686 psetkeyparm = kzalloc(sizeof(struct setkey_parm), GFP_KERNEL);
1687 if (!psetkeyparm) {
1688 kfree(pcmd);
1689 res = _FAIL;
1690 goto exit;
1691 }
1692
1693 memset(psetkeyparm, 0, sizeof(struct setkey_parm));
1694
1695 if (psecuritypriv->dot11AuthAlgrthm == dot11AuthAlgrthm_8021X)
1696 psetkeyparm->algorithm = (unsigned char)psecuritypriv->dot118021XGrpPrivacy;
1697 else
1698 psetkeyparm->algorithm = (u8)psecuritypriv->dot11PrivacyAlgrthm;
1699 psetkeyparm->keyid = (u8)keyid;/* 0~3 */
1700 psetkeyparm->set_tx = set_tx;
1701 pmlmepriv->key_mask |= BIT(psetkeyparm->keyid);
1702 DBG_88E("==> rtw_set_key algorithm(%x), keyid(%x), key_mask(%x)\n",
1703 psetkeyparm->algorithm, psetkeyparm->keyid, pmlmepriv->key_mask);
1704
1705 switch (psetkeyparm->algorithm) {
1706 case _WEP40_:
1707 keylen = 5;
1708 memcpy(&psetkeyparm->key[0], &psecuritypriv->dot11DefKey[keyid].skey[0], keylen);
1709 break;
1710 case _WEP104_:
1711 keylen = 13;
1712 memcpy(&psetkeyparm->key[0], &psecuritypriv->dot11DefKey[keyid].skey[0], keylen);
1713 break;
1714 case _TKIP_:
1715 keylen = 16;
1716 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
1717 psetkeyparm->grpkey = 1;
1718 break;
1719 case _AES_:
1720 keylen = 16;
1721 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
1722 psetkeyparm->grpkey = 1;
1723 break;
1724 default:
1725 kfree(psetkeyparm);
1726 kfree(pcmd);
1727 res = _FAIL;
1728 goto exit;
1729 }
1730 pcmd->cmdcode = _SetKey_CMD_;
1731 pcmd->parmbuf = (u8 *)psetkeyparm;
1732 pcmd->cmdsz = (sizeof(struct setkey_parm));
1733 pcmd->rsp = NULL;
1734 pcmd->rspsz = 0;
1735 INIT_LIST_HEAD(&pcmd->list);
1736 res = rtw_enqueue_cmd(pcmdpriv, pcmd);
1737 exit:
1738 return res;
1739 }
1740
1741 /* 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)1742 int rtw_restruct_wmm_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len, uint initial_out_len)
1743 {
1744 unsigned int ielength = 0;
1745 unsigned int i, j;
1746
1747 i = 12; /* after the fixed IE */
1748 while (i < in_len) {
1749 ielength = initial_out_len;
1750
1751 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) {
1752 /* WMM element ID and OUI */
1753 /* Append WMM IE to the last index of out_ie */
1754
1755 for (j = i; j < i + 9; j++) {
1756 out_ie[ielength] = in_ie[j];
1757 ielength++;
1758 }
1759 out_ie[initial_out_len + 1] = 0x07;
1760 out_ie[initial_out_len + 6] = 0x00;
1761 out_ie[initial_out_len + 8] = 0x00;
1762 break;
1763 }
1764 i += (in_ie[i + 1] + 2); /* to the next IE element */
1765 }
1766 return ielength;
1767 }
1768
1769 /* */
1770 /* Ported from 8185: IsInPreAuthKeyList(). (Renamed from SecIsInPreAuthKeyList(), 2006-10-13.) */
1771 /* Added by Annie, 2006-05-07. */
1772 /* */
1773 /* Search by BSSID, */
1774 /* Return Value: */
1775 /* -1 :if there is no pre-auth key in the table */
1776 /* >= 0 :if there is pre-auth key, and return the entry id */
1777 /* */
1778 /* */
1779
SecIsInPMKIDList(struct adapter * Adapter,u8 * bssid)1780 static int SecIsInPMKIDList(struct adapter *Adapter, u8 *bssid)
1781 {
1782 struct security_priv *psecuritypriv = &Adapter->securitypriv;
1783 int i = 0;
1784
1785 do {
1786 if ((psecuritypriv->PMKIDList[i].bUsed) &&
1787 (!memcmp(psecuritypriv->PMKIDList[i].Bssid, bssid, ETH_ALEN))) {
1788 break;
1789 } else {
1790 i++;
1791 /* continue; */
1792 }
1793
1794 } while (i < NUM_PMKID_CACHE);
1795
1796 if (i == NUM_PMKID_CACHE) {
1797 i = -1;/* Could not find. */
1798 } else {
1799 /* There is one Pre-Authentication Key for the specific BSSID. */
1800 }
1801 return i;
1802 }
1803
1804 /* */
1805 /* Check the RSN IE length */
1806 /* If the RSN IE length <= 20, the RSN IE didn't include the PMKID information */
1807 /* 0-11th element in the array are the fixed IE */
1808 /* 12th element in the array is the IE */
1809 /* 13th element in the array is the IE length */
1810 /* */
1811
rtw_append_pmkid(struct adapter * Adapter,int iEntry,u8 * ie,uint ie_len)1812 static int rtw_append_pmkid(struct adapter *Adapter, int iEntry, u8 *ie, uint ie_len)
1813 {
1814 struct security_priv *psecuritypriv = &Adapter->securitypriv;
1815
1816 if (ie[13] <= 20) {
1817 /* The RSN IE didn't include the PMK ID, append the PMK information */
1818 ie[ie_len] = 1;
1819 ie_len++;
1820 ie[ie_len] = 0; /* PMKID count = 0x0100 */
1821 ie_len++;
1822 memcpy(&ie[ie_len], &psecuritypriv->PMKIDList[iEntry].PMKID, 16);
1823
1824 ie_len += 16;
1825 ie[13] += 18;/* PMKID length = 2+16 */
1826 }
1827 return ie_len;
1828 }
1829
rtw_restruct_sec_ie(struct adapter * adapter,u8 * in_ie,u8 * out_ie,uint in_len)1830 int rtw_restruct_sec_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len)
1831 {
1832 u8 authmode = 0;
1833 uint ielength;
1834 int iEntry;
1835 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1836 struct security_priv *psecuritypriv = &adapter->securitypriv;
1837 uint ndisauthmode = psecuritypriv->ndisauthtype;
1838
1839 /* copy fixed ie only */
1840 memcpy(out_ie, in_ie, 12);
1841 ielength = 12;
1842 if ((ndisauthmode == Ndis802_11AuthModeWPA) ||
1843 (ndisauthmode == Ndis802_11AuthModeWPAPSK))
1844 authmode = _WPA_IE_ID_;
1845 if ((ndisauthmode == Ndis802_11AuthModeWPA2) ||
1846 (ndisauthmode == Ndis802_11AuthModeWPA2PSK))
1847 authmode = _WPA2_IE_ID_;
1848
1849 if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
1850 memcpy(out_ie + ielength, psecuritypriv->wps_ie, psecuritypriv->wps_ie_len);
1851
1852 ielength += psecuritypriv->wps_ie_len;
1853 } else if ((authmode == _WPA_IE_ID_) || (authmode == _WPA2_IE_ID_)) {
1854 /* copy RSN or SSN */
1855 memcpy(&out_ie[ielength], &psecuritypriv->supplicant_ie[0], psecuritypriv->supplicant_ie[1] + 2);
1856 ielength += psecuritypriv->supplicant_ie[1] + 2;
1857 rtw_report_sec_ie(adapter, authmode, psecuritypriv->supplicant_ie);
1858 }
1859
1860 iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
1861 if (iEntry < 0) {
1862 return ielength;
1863 } else {
1864 if (authmode == _WPA2_IE_ID_)
1865 ielength = rtw_append_pmkid(adapter, iEntry, out_ie, ielength);
1866 }
1867
1868 return ielength;
1869 }
1870
rtw_init_registrypriv_dev_network(struct adapter * adapter)1871 void rtw_init_registrypriv_dev_network(struct adapter *adapter)
1872 {
1873 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1874 struct eeprom_priv *peepriv = &adapter->eeprompriv;
1875 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1876 u8 *myhwaddr = myid(peepriv);
1877
1878 memcpy(pdev_network->MacAddress, myhwaddr, ETH_ALEN);
1879
1880 memcpy(&pdev_network->Ssid, &pregistrypriv->ssid, sizeof(struct ndis_802_11_ssid));
1881
1882 pdev_network->Configuration.Length = sizeof(struct ndis_802_11_config);
1883 pdev_network->Configuration.BeaconPeriod = 100;
1884 pdev_network->Configuration.FHConfig.Length = 0;
1885 pdev_network->Configuration.FHConfig.HopPattern = 0;
1886 pdev_network->Configuration.FHConfig.HopSet = 0;
1887 pdev_network->Configuration.FHConfig.DwellTime = 0;
1888
1889 }
1890
rtw_update_registrypriv_dev_network(struct adapter * adapter)1891 void rtw_update_registrypriv_dev_network(struct adapter *adapter)
1892 {
1893 int sz = 0;
1894 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1895 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1896 struct security_priv *psecuritypriv = &adapter->securitypriv;
1897 struct wlan_network *cur_network = &adapter->mlmepriv.cur_network;
1898
1899 pdev_network->Privacy = (psecuritypriv->dot11PrivacyAlgrthm > 0 ? 1 : 0); /* adhoc no 802.1x */
1900
1901 pdev_network->Rssi = 0;
1902
1903 switch (pregistrypriv->wireless_mode) {
1904 case WIRELESS_11B:
1905 pdev_network->NetworkTypeInUse = (Ndis802_11DS);
1906 break;
1907 case WIRELESS_11G:
1908 case WIRELESS_11BG:
1909 case WIRELESS_11_24N:
1910 case WIRELESS_11G_24N:
1911 case WIRELESS_11BG_24N:
1912 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM24);
1913 break;
1914 default:
1915 /* TODO */
1916 break;
1917 }
1918
1919 pdev_network->Configuration.DSConfig = (pregistrypriv->channel);
1920
1921 if (cur_network->network.InfrastructureMode == Ndis802_11IBSS)
1922 pdev_network->Configuration.ATIMWindow = (0);
1923
1924 pdev_network->InfrastructureMode = (cur_network->network.InfrastructureMode);
1925
1926 /* 1. Supported rates */
1927 /* 2. IE */
1928
1929 sz = rtw_generate_ie(pregistrypriv);
1930 pdev_network->IELength = sz;
1931 pdev_network->Length = get_wlan_bssid_ex_sz((struct wlan_bssid_ex *)pdev_network);
1932
1933 /* notes: translate IELength & Length after assign the Length to cmdsz in createbss_cmd(); */
1934 /* pdev_network->IELength = cpu_to_le32(sz); */
1935
1936 }
1937
rtw_get_encrypt_decrypt_from_registrypriv(struct adapter * adapter)1938 void rtw_get_encrypt_decrypt_from_registrypriv(struct adapter *adapter)
1939 {
1940
1941 }
1942
1943 /* the function is at passive_level */
rtw_joinbss_reset(struct adapter * padapter)1944 void rtw_joinbss_reset(struct adapter *padapter)
1945 {
1946 u8 threshold;
1947 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1948 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1949
1950 /* todo: if you want to do something io/reg/hw setting before join_bss, please add code here */
1951 pmlmepriv->num_FortyMHzIntolerant = 0;
1952
1953 pmlmepriv->num_sta_no_ht = 0;
1954
1955 phtpriv->ampdu_enable = false;/* reset to disabled */
1956
1957 /* TH = 1 => means that invalidate usb rx aggregation */
1958 /* TH = 0 => means that validate usb rx aggregation, use init value. */
1959 if (phtpriv->ht_option) {
1960 if (padapter->registrypriv.wifi_spec == 1)
1961 threshold = 1;
1962 else
1963 threshold = 0;
1964 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
1965 } else {
1966 threshold = 1;
1967 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
1968 }
1969 }
1970
1971 /* the function is >= passive_level */
rtw_restructure_ht_ie(struct adapter * padapter,u8 * in_ie,u8 * out_ie,uint in_len,uint * pout_len)1972 unsigned int rtw_restructure_ht_ie(struct adapter *padapter, u8 *in_ie, u8 *out_ie, uint in_len, uint *pout_len)
1973 {
1974 u32 ielen, out_len;
1975 enum ht_cap_ampdu_factor max_rx_ampdu_factor;
1976 unsigned char *p;
1977 struct ieee80211_ht_cap ht_capie;
1978 unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
1979 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1980 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
1981 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1982 u32 rx_packet_offset, max_recvbuf_sz;
1983
1984 phtpriv->ht_option = false;
1985
1986 p = rtw_get_ie(in_ie + 12, _HT_CAPABILITY_IE_, &ielen, in_len - 12);
1987
1988 if (p && ielen > 0) {
1989 if (pqospriv->qos_option == 0) {
1990 out_len = *pout_len;
1991 rtw_set_ie(out_ie + out_len, _VENDOR_SPECIFIC_IE_,
1992 _WMM_IE_Length_, WMM_IE, pout_len);
1993
1994 pqospriv->qos_option = 1;
1995 }
1996
1997 out_len = *pout_len;
1998
1999 memset(&ht_capie, 0, sizeof(struct ieee80211_ht_cap));
2000
2001 ht_capie.cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
2002 IEEE80211_HT_CAP_SGI_20 |
2003 IEEE80211_HT_CAP_SGI_40 |
2004 IEEE80211_HT_CAP_TX_STBC |
2005 IEEE80211_HT_CAP_DSSSCCK40);
2006
2007 rtw_hal_get_def_var(padapter, HAL_DEF_RX_PACKET_OFFSET, &rx_packet_offset);
2008 rtw_hal_get_def_var(padapter, HAL_DEF_MAX_RECVBUF_SZ, &max_recvbuf_sz);
2009
2010 /*
2011 AMPDU_para [1:0]:Max AMPDU Len => 0:8k , 1:16k, 2:32k, 3:64k
2012 AMPDU_para [4:2]:Min MPDU Start Spacing
2013 */
2014
2015 rtw_hal_get_def_var(padapter, HW_VAR_MAX_RX_AMPDU_FACTOR, &max_rx_ampdu_factor);
2016 ht_capie.ampdu_params_info = (max_rx_ampdu_factor & 0x03);
2017
2018 if (padapter->securitypriv.dot11PrivacyAlgrthm == _AES_)
2019 ht_capie.ampdu_params_info |= (IEEE80211_HT_AMPDU_PARM_DENSITY & (0x07 << 2));
2020 else
2021 ht_capie.ampdu_params_info |= (IEEE80211_HT_AMPDU_PARM_DENSITY & 0x00);
2022
2023 rtw_set_ie(out_ie + out_len, _HT_CAPABILITY_IE_,
2024 sizeof(struct ieee80211_ht_cap), (unsigned char *)&ht_capie, pout_len);
2025
2026 phtpriv->ht_option = true;
2027
2028 p = rtw_get_ie(in_ie + 12, _HT_ADD_INFO_IE_, &ielen, in_len - 12);
2029 if (p && (ielen == sizeof(struct ieee80211_ht_addt_info))) {
2030 out_len = *pout_len;
2031 rtw_set_ie(out_ie + out_len, _HT_ADD_INFO_IE_, ielen, p + 2, pout_len);
2032 }
2033 }
2034 return phtpriv->ht_option;
2035 }
2036
2037 /* the function is > passive_level (in critical_section) */
rtw_update_ht_cap(struct adapter * padapter,u8 * pie,uint ie_len)2038 void rtw_update_ht_cap(struct adapter *padapter, u8 *pie, uint ie_len)
2039 {
2040 u8 *p, max_ampdu_sz;
2041 int len;
2042 struct ieee80211_ht_cap *pht_capie;
2043 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2044 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
2045 struct registry_priv *pregistrypriv = &padapter->registrypriv;
2046 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
2047 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
2048
2049 if (!phtpriv->ht_option)
2050 return;
2051
2052 if ((!pmlmeinfo->HT_info_enable) || (!pmlmeinfo->HT_caps_enable))
2053 return;
2054
2055 DBG_88E("+rtw_update_ht_cap()\n");
2056
2057 /* maybe needs check if ap supports rx ampdu. */
2058 if ((!phtpriv->ampdu_enable) && (pregistrypriv->ampdu_enable == 1)) {
2059 if (pregistrypriv->wifi_spec == 1)
2060 phtpriv->ampdu_enable = false;
2061 else
2062 phtpriv->ampdu_enable = true;
2063 } else if (pregistrypriv->ampdu_enable == 2) {
2064 phtpriv->ampdu_enable = true;
2065 }
2066
2067 /* check Max Rx A-MPDU Size */
2068 len = 0;
2069 p = rtw_get_ie(pie + sizeof(struct ndis_802_11_fixed_ie), _HT_CAPABILITY_IE_, &len, ie_len - sizeof(struct ndis_802_11_fixed_ie));
2070 if (p && len > 0) {
2071 pht_capie = (struct ieee80211_ht_cap *)(p + 2);
2072 max_ampdu_sz = (pht_capie->ampdu_params_info & IEEE80211_HT_AMPDU_PARM_FACTOR);
2073 max_ampdu_sz = 1 << (max_ampdu_sz + 3); /* max_ampdu_sz (kbytes); */
2074 phtpriv->rx_ampdu_maxlen = max_ampdu_sz;
2075 }
2076 len = 0;
2077 p = rtw_get_ie(pie + sizeof(struct ndis_802_11_fixed_ie), _HT_ADD_INFO_IE_, &len, ie_len - sizeof(struct ndis_802_11_fixed_ie));
2078
2079 /* update cur_bwmode & cur_ch_offset */
2080 if ((pregistrypriv->cbw40_enable) &&
2081 (le16_to_cpu(pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info) & BIT(1)) &&
2082 (pmlmeinfo->HT_info.infos[0] & BIT(2))) {
2083 int i;
2084 u8 rf_type;
2085
2086 padapter->HalFunc.GetHwRegHandler(padapter, HW_VAR_RF_TYPE, (u8 *)(&rf_type));
2087
2088 /* update the MCS rates */
2089 for (i = 0; i < 16; i++) {
2090 if ((rf_type == RF_1T1R) || (rf_type == RF_1T2R))
2091 pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= MCS_rate_1R[i];
2092 else
2093 pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= MCS_rate_2R[i];
2094 }
2095 /* switch to the 40M Hz mode according to the AP */
2096 pmlmeext->cur_bwmode = HT_CHANNEL_WIDTH_40;
2097 switch ((pmlmeinfo->HT_info.infos[0] & 0x3)) {
2098 case HT_EXTCHNL_OFFSET_UPPER:
2099 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_LOWER;
2100 break;
2101 case HT_EXTCHNL_OFFSET_LOWER:
2102 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_UPPER;
2103 break;
2104 default:
2105 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
2106 break;
2107 }
2108 }
2109
2110 /* Config SM Power Save setting */
2111 pmlmeinfo->SM_PS = (le16_to_cpu(pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info) & 0x0C) >> 2;
2112 if (pmlmeinfo->SM_PS == WLAN_HT_CAP_SM_PS_STATIC)
2113 DBG_88E("%s(): WLAN_HT_CAP_SM_PS_STATIC\n", __func__);
2114
2115 /* Config current HT Protection mode. */
2116 pmlmeinfo->HT_protection = pmlmeinfo->HT_info.infos[1] & 0x3;
2117 }
2118
rtw_issue_addbareq_cmd(struct adapter * padapter,struct xmit_frame * pxmitframe)2119 void rtw_issue_addbareq_cmd(struct adapter *padapter, struct xmit_frame *pxmitframe)
2120 {
2121 u8 issued;
2122 int priority;
2123 struct sta_info *psta = NULL;
2124 struct ht_priv *phtpriv;
2125 struct pkt_attrib *pattrib = &pxmitframe->attrib;
2126
2127 if (is_multicast_ether_addr(pattrib->ra) ||
2128 padapter->mlmepriv.LinkDetectInfo.NumTxOkInPeriod < 100)
2129 return;
2130
2131 priority = pattrib->priority;
2132
2133 if (pattrib->psta)
2134 psta = pattrib->psta;
2135 else
2136 psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
2137
2138 if (!psta)
2139 return;
2140
2141 phtpriv = &psta->htpriv;
2142
2143 if ((phtpriv->ht_option) && (phtpriv->ampdu_enable)) {
2144 issued = (phtpriv->agg_enable_bitmap >> priority) & 0x1;
2145 issued |= (phtpriv->candidate_tid_bitmap >> priority) & 0x1;
2146
2147 if (0 == issued) {
2148 DBG_88E("rtw_issue_addbareq_cmd, p=%d\n", priority);
2149 psta->htpriv.candidate_tid_bitmap |= BIT((u8)priority);
2150 rtw_addbareq_cmd(padapter, (u8)priority, pattrib->ra);
2151 }
2152 }
2153 }
2154
rtw_roaming(struct adapter * padapter,struct wlan_network * tgt_network)2155 void rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
2156 {
2157 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2158
2159 spin_lock_bh(&pmlmepriv->lock);
2160 _rtw_roaming(padapter, tgt_network);
2161 spin_unlock_bh(&pmlmepriv->lock);
2162 }
_rtw_roaming(struct adapter * padapter,struct wlan_network * tgt_network)2163 void _rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
2164 {
2165 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2166 int do_join_r;
2167
2168 struct wlan_network *pnetwork;
2169
2170 if (tgt_network)
2171 pnetwork = tgt_network;
2172 else
2173 pnetwork = &pmlmepriv->cur_network;
2174
2175 if (0 < rtw_to_roaming(padapter)) {
2176 DBG_88E("roaming from %s(%pM length:%d\n",
2177 pnetwork->network.Ssid.Ssid, pnetwork->network.MacAddress,
2178 pnetwork->network.Ssid.SsidLength);
2179 memcpy(&pmlmepriv->assoc_ssid, &pnetwork->network.Ssid, sizeof(struct ndis_802_11_ssid));
2180
2181 pmlmepriv->assoc_by_bssid = false;
2182
2183 while (1) {
2184 do_join_r = rtw_do_join(padapter);
2185 if (_SUCCESS == do_join_r) {
2186 break;
2187 } else {
2188 DBG_88E("roaming do_join return %d\n", do_join_r);
2189 pmlmepriv->to_roaming--;
2190
2191 if (0 < pmlmepriv->to_roaming) {
2192 continue;
2193 } else {
2194 DBG_88E("%s(%d) -to roaming fail, indicate_disconnect\n", __func__, __LINE__);
2195 rtw_indicate_disconnect(padapter);
2196 break;
2197 }
2198 }
2199 }
2200 }
2201 }
2202