1 // SPDX-License-Identifier: GPL-2.0
2 /******************************************************************************
3 *
4 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
5 *
6 ******************************************************************************/
7 #define _RTW_MLME_C_
8
9 #include <linux/ieee80211.h>
10
11 #include <osdep_service.h>
12 #include <drv_types.h>
13 #include <recv_osdep.h>
14 #include <xmit_osdep.h>
15 #include <hal_intf.h>
16 #include <mlme_osdep.h>
17 #include <sta_info.h>
18 #include <wifi.h>
19 #include <wlan_bssdef.h>
20 #include <rtw_ioctl_set.h>
21 #include <linux/vmalloc.h>
22
23 extern unsigned char MCS_rate_1R[16];
24
rtw_init_mlme_priv(struct adapter * padapter)25 int rtw_init_mlme_priv(struct adapter *padapter)
26 {
27 int i;
28 u8 *pbuf;
29 struct wlan_network *pnetwork;
30 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
31 int res = _SUCCESS;
32
33 /* We don't need to memset padapter->XXX to zero, because adapter is allocated by vzalloc(). */
34
35 pmlmepriv->nic_hdl = (u8 *)padapter;
36
37 pmlmepriv->pscanned = NULL;
38 pmlmepriv->fw_state = 0;
39 pmlmepriv->cur_network.network.InfrastructureMode = Ndis802_11AutoUnknown;
40 pmlmepriv->scan_mode = SCAN_ACTIVE;/* 1: active, 0: pasive. Maybe someday we should rename this varable to "active_mode" (Jeff) */
41
42 spin_lock_init(&(pmlmepriv->lock));
43 _rtw_init_queue(&(pmlmepriv->free_bss_pool));
44 _rtw_init_queue(&(pmlmepriv->scanned_queue));
45
46 memset(&pmlmepriv->assoc_ssid, 0, sizeof(struct ndis_802_11_ssid));
47
48 pbuf = vzalloc(array_size(MAX_BSS_CNT, sizeof(struct wlan_network)));
49
50 if (!pbuf) {
51 res = _FAIL;
52 goto exit;
53 }
54 pmlmepriv->free_bss_buf = pbuf;
55
56 pnetwork = (struct wlan_network *)pbuf;
57
58 for (i = 0; i < MAX_BSS_CNT; i++) {
59 INIT_LIST_HEAD(&(pnetwork->list));
60
61 list_add_tail(&(pnetwork->list), &(pmlmepriv->free_bss_pool.queue));
62
63 pnetwork++;
64 }
65
66 /* allocate DMA-able/Non-Page memory for cmd_buf and rsp_buf */
67
68 rtw_clear_scan_deny(padapter);
69
70 rtw_init_mlme_timer(padapter);
71
72 exit:
73 return res;
74 }
75
76 #if defined(CONFIG_88EU_AP_MODE)
rtw_free_mlme_ie_data(u8 ** ppie,u32 * plen)77 static void rtw_free_mlme_ie_data(u8 **ppie, u32 *plen)
78 {
79 kfree(*ppie);
80 *plen = 0;
81 *ppie = NULL;
82 }
83
rtw_free_mlme_priv_ie_data(struct mlme_priv * pmlmepriv)84 void rtw_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv)
85 {
86 rtw_buf_free(&pmlmepriv->assoc_req, &pmlmepriv->assoc_req_len);
87 rtw_buf_free(&pmlmepriv->assoc_rsp, &pmlmepriv->assoc_rsp_len);
88 rtw_free_mlme_ie_data(&pmlmepriv->wps_beacon_ie, &pmlmepriv->wps_beacon_ie_len);
89 rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_req_ie, &pmlmepriv->wps_probe_req_ie_len);
90 rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_resp_ie, &pmlmepriv->wps_probe_resp_ie_len);
91 rtw_free_mlme_ie_data(&pmlmepriv->wps_assoc_resp_ie, &pmlmepriv->wps_assoc_resp_ie_len);
92 }
93 #else
rtw_free_mlme_priv_ie_data(struct mlme_priv * pmlmepriv)94 void rtw_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv)
95 {
96 }
97 #endif
98
rtw_free_mlme_priv(struct mlme_priv * pmlmepriv)99 void rtw_free_mlme_priv(struct mlme_priv *pmlmepriv)
100 {
101 if (pmlmepriv) {
102 rtw_free_mlme_priv_ie_data(pmlmepriv);
103 vfree(pmlmepriv->free_bss_buf);
104 }
105 }
106
_rtw_alloc_network(struct mlme_priv * pmlmepriv)107 struct wlan_network *_rtw_alloc_network(struct mlme_priv *pmlmepriv)
108 /* _queue *free_queue) */
109 {
110 struct wlan_network *pnetwork;
111 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
112
113 spin_lock_bh(&free_queue->lock);
114 pnetwork = list_first_entry_or_null(&free_queue->queue,
115 struct wlan_network, list);
116 if (!pnetwork)
117 goto exit;
118
119 list_del_init(&pnetwork->list);
120
121 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
122 ("_rtw_alloc_network: ptr=%p\n", &pnetwork->list));
123 pnetwork->network_type = 0;
124 pnetwork->fixed = false;
125 pnetwork->last_scanned = jiffies;
126 pnetwork->aid = 0;
127 pnetwork->join_res = 0;
128
129 exit:
130 spin_unlock_bh(&free_queue->lock);
131
132 return pnetwork;
133 }
134
_rtw_free_network(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork,u8 isfreeall)135 static void _rtw_free_network(struct mlme_priv *pmlmepriv, struct wlan_network *pnetwork, u8 isfreeall)
136 {
137 unsigned long curr_time;
138 u32 delta_time;
139 u32 lifetime = SCANQUEUE_LIFETIME;
140 struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
141
142 if (!pnetwork)
143 return;
144
145 if (pnetwork->fixed)
146 return;
147 curr_time = jiffies;
148 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) ||
149 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)))
150 lifetime = 1;
151 if (!isfreeall) {
152 delta_time = (curr_time - pnetwork->last_scanned)/HZ;
153 if (delta_time < lifetime)/* unit:sec */
154 return;
155 }
156 spin_lock_bh(&free_queue->lock);
157 list_del_init(&(pnetwork->list));
158 list_add_tail(&(pnetwork->list), &(free_queue->queue));
159 spin_unlock_bh(&free_queue->lock);
160 }
161
_rtw_free_network_nolock(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork)162 void _rtw_free_network_nolock(struct mlme_priv *pmlmepriv, struct wlan_network *pnetwork)
163 {
164 struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
165
166 if (!pnetwork)
167 return;
168 if (pnetwork->fixed)
169 return;
170 list_del_init(&(pnetwork->list));
171 list_add_tail(&(pnetwork->list), get_list_head(free_queue));
172 }
173
174 /*
175 * return the wlan_network with the matching addr
176 *
177 * Shall be called under atomic context... to avoid possible racing condition...
178 */
rtw_find_network(struct __queue * scanned_queue,u8 * addr)179 struct wlan_network *rtw_find_network(struct __queue *scanned_queue, u8 *addr)
180 {
181 struct list_head *phead, *plist;
182 struct wlan_network *pnetwork = NULL;
183 u8 zero_addr[ETH_ALEN] = {0, 0, 0, 0, 0, 0};
184
185 if (!memcmp(zero_addr, addr, ETH_ALEN)) {
186 pnetwork = NULL;
187 goto exit;
188 }
189 phead = get_list_head(scanned_queue);
190 plist = phead->next;
191
192 while (plist != phead) {
193 pnetwork = container_of(plist, struct wlan_network, list);
194 if (!memcmp(addr, pnetwork->network.MacAddress, ETH_ALEN))
195 break;
196 plist = plist->next;
197 }
198 if (plist == phead)
199 pnetwork = NULL;
200 exit:
201 return pnetwork;
202 }
203
rtw_free_network_queue(struct adapter * padapter,u8 isfreeall)204 void rtw_free_network_queue(struct adapter *padapter, u8 isfreeall)
205 {
206 struct list_head *phead, *plist;
207 struct wlan_network *pnetwork;
208 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
209 struct __queue *scanned_queue = &pmlmepriv->scanned_queue;
210
211 spin_lock_bh(&scanned_queue->lock);
212
213 phead = get_list_head(scanned_queue);
214 plist = phead->next;
215
216 while (phead != plist) {
217 pnetwork = container_of(plist, struct wlan_network, list);
218
219 plist = plist->next;
220
221 _rtw_free_network(pmlmepriv, pnetwork, isfreeall);
222 }
223 spin_unlock_bh(&scanned_queue->lock);
224 }
225
rtw_if_up(struct adapter * padapter)226 int rtw_if_up(struct adapter *padapter)
227 {
228 int res;
229
230 if (padapter->bDriverStopped || padapter->bSurpriseRemoved ||
231 (check_fwstate(&padapter->mlmepriv, _FW_LINKED) == false)) {
232 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
233 ("rtw_if_up:bDriverStopped(%d) OR bSurpriseRemoved(%d)",
234 padapter->bDriverStopped, padapter->bSurpriseRemoved));
235 res = false;
236 } else {
237 res = true;
238 }
239 return res;
240 }
241
rtw_generate_random_ibss(u8 * pibss)242 void rtw_generate_random_ibss(u8 *pibss)
243 {
244 unsigned long curtime = jiffies;
245
246 pibss[0] = 0x02; /* in ad-hoc mode bit1 must set to 1 */
247 pibss[1] = 0x11;
248 pibss[2] = 0x87;
249 pibss[3] = (u8)(curtime & 0xff);/* p[0]; */
250 pibss[4] = (u8)((curtime>>8) & 0xff);/* p[1]; */
251 pibss[5] = (u8)((curtime>>16) & 0xff);/* p[2]; */
252 }
253
rtw_get_capability_from_ie(u8 * ie)254 u8 *rtw_get_capability_from_ie(u8 *ie)
255 {
256 return ie + 8 + 2;
257 }
258
rtw_get_capability(struct wlan_bssid_ex * bss)259 u16 rtw_get_capability(struct wlan_bssid_ex *bss)
260 {
261 __le16 val;
262
263 memcpy((u8 *)&val, rtw_get_capability_from_ie(bss->ies), 2);
264
265 return le16_to_cpu(val);
266 }
267
rtw_get_beacon_interval_from_ie(u8 * ie)268 u8 *rtw_get_beacon_interval_from_ie(u8 *ie)
269 {
270 return ie + 8;
271 }
272
rtw_alloc_network(struct mlme_priv * pmlmepriv)273 static struct wlan_network *rtw_alloc_network(struct mlme_priv *pmlmepriv)
274 {
275 return _rtw_alloc_network(pmlmepriv);
276 }
277
rtw_free_network_nolock(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork)278 static void rtw_free_network_nolock(struct mlme_priv *pmlmepriv,
279 struct wlan_network *pnetwork)
280 {
281 _rtw_free_network_nolock(pmlmepriv, pnetwork);
282 }
283
rtw_is_same_ibss(struct adapter * adapter,struct wlan_network * pnetwork)284 int rtw_is_same_ibss(struct adapter *adapter, struct wlan_network *pnetwork)
285 {
286 int ret = true;
287 struct security_priv *psecuritypriv = &adapter->securitypriv;
288
289 if ((psecuritypriv->dot11PrivacyAlgrthm != _NO_PRIVACY_) &&
290 (pnetwork->network.Privacy == 0))
291 ret = false;
292 else if ((psecuritypriv->dot11PrivacyAlgrthm == _NO_PRIVACY_) &&
293 (pnetwork->network.Privacy == 1))
294 ret = false;
295 else
296 ret = true;
297 return ret;
298 }
299
is_same_ess(struct wlan_bssid_ex * a,struct wlan_bssid_ex * b)300 static int is_same_ess(struct wlan_bssid_ex *a, struct wlan_bssid_ex *b)
301 {
302 return (a->Ssid.SsidLength == b->Ssid.SsidLength) &&
303 !memcmp(a->Ssid.Ssid, b->Ssid.Ssid, a->Ssid.SsidLength);
304 }
305
is_same_network(struct wlan_bssid_ex * src,struct wlan_bssid_ex * dst)306 int is_same_network(struct wlan_bssid_ex *src, struct wlan_bssid_ex *dst)
307 {
308 u16 s_cap, d_cap;
309 __le16 le_scap, le_dcap;
310
311 memcpy((u8 *)&le_scap, rtw_get_capability_from_ie(src->ies), 2);
312 memcpy((u8 *)&le_dcap, rtw_get_capability_from_ie(dst->ies), 2);
313
314 s_cap = le16_to_cpu(le_scap);
315 d_cap = le16_to_cpu(le_dcap);
316
317 return ((src->Ssid.SsidLength == dst->Ssid.SsidLength) &&
318 ((!memcmp(src->MacAddress, dst->MacAddress, ETH_ALEN)) == true) &&
319 ((!memcmp(src->Ssid.Ssid, dst->Ssid.Ssid, src->Ssid.SsidLength)) == true) &&
320 ((s_cap & WLAN_CAPABILITY_IBSS) ==
321 (d_cap & WLAN_CAPABILITY_IBSS)) &&
322 ((s_cap & WLAN_CAPABILITY_ESS) ==
323 (d_cap & WLAN_CAPABILITY_ESS)));
324 }
325
rtw_get_oldest_wlan_network(struct __queue * scanned_queue)326 struct wlan_network *rtw_get_oldest_wlan_network(struct __queue *scanned_queue)
327 {
328 struct list_head *plist, *phead;
329 struct wlan_network *pwlan = NULL;
330 struct wlan_network *oldest = NULL;
331
332 phead = get_list_head(scanned_queue);
333
334 for (plist = phead->next; plist != phead; plist = plist->next) {
335 pwlan = container_of(plist, struct wlan_network, list);
336
337 if (!pwlan->fixed) {
338 if (!oldest || time_after(oldest->last_scanned, pwlan->last_scanned))
339 oldest = pwlan;
340 }
341 }
342 return oldest;
343 }
344
update_network(struct wlan_bssid_ex * dst,struct wlan_bssid_ex * src,struct adapter * padapter,bool update_ie)345 void update_network(struct wlan_bssid_ex *dst, struct wlan_bssid_ex *src,
346 struct adapter *padapter, bool update_ie)
347 {
348 long rssi_ori = dst->Rssi;
349 u8 sq_smp = src->PhyInfo.SignalQuality;
350 u8 ss_final;
351 u8 sq_final;
352 long rssi_final;
353
354 rtw_hal_antdiv_rssi_compared(padapter, dst, src); /* this will update src.Rssi, need consider again */
355
356 /* The rule below is 1/5 for sample value, 4/5 for history value */
357 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) && is_same_network(&(padapter->mlmepriv.cur_network.network), src)) {
358 /* Take the recvpriv's value for the connected AP*/
359 ss_final = padapter->recvpriv.signal_strength;
360 sq_final = padapter->recvpriv.signal_qual;
361 /* the rssi value here is undecorated, and will be used for antenna diversity */
362 if (sq_smp != 101) /* from the right channel */
363 rssi_final = (src->Rssi + dst->Rssi * 4) / 5;
364 else
365 rssi_final = rssi_ori;
366 } else {
367 if (sq_smp != 101) { /* from the right channel */
368 ss_final = ((u32)(src->PhyInfo.SignalStrength)+(u32)(dst->PhyInfo.SignalStrength)*4)/5;
369 sq_final = ((u32)(src->PhyInfo.SignalQuality)+(u32)(dst->PhyInfo.SignalQuality)*4)/5;
370 rssi_final = (src->Rssi+dst->Rssi*4)/5;
371 } else {
372 /* bss info not receiving from the right channel, use the original RX signal infos */
373 ss_final = dst->PhyInfo.SignalStrength;
374 sq_final = dst->PhyInfo.SignalQuality;
375 rssi_final = dst->Rssi;
376 }
377 }
378 if (update_ie)
379 memcpy((u8 *)dst, (u8 *)src, get_wlan_bssid_ex_sz(src));
380 dst->PhyInfo.SignalStrength = ss_final;
381 dst->PhyInfo.SignalQuality = sq_final;
382 dst->Rssi = rssi_final;
383 }
384
update_current_network(struct adapter * adapter,struct wlan_bssid_ex * pnetwork)385 static void update_current_network(struct adapter *adapter, struct wlan_bssid_ex *pnetwork)
386 {
387 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
388
389 if ((check_fwstate(pmlmepriv, _FW_LINKED) == true) &&
390 (is_same_network(&(pmlmepriv->cur_network.network), pnetwork))) {
391 update_network(&(pmlmepriv->cur_network.network), pnetwork, adapter, true);
392 rtw_update_protection(adapter, (pmlmepriv->cur_network.network.ies) + sizeof(struct ndis_802_11_fixed_ie),
393 pmlmepriv->cur_network.network.ie_length);
394 }
395 }
396
397 /*
398 * Caller must hold pmlmepriv->lock first.
399 */
rtw_update_scanned_network(struct adapter * adapter,struct wlan_bssid_ex * target)400 void rtw_update_scanned_network(struct adapter *adapter, struct wlan_bssid_ex *target)
401 {
402 struct list_head *plist, *phead;
403 u32 bssid_ex_sz;
404 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
405 struct __queue *queue = &(pmlmepriv->scanned_queue);
406 struct wlan_network *pnetwork = NULL;
407 struct wlan_network *oldest = NULL;
408
409 spin_lock_bh(&queue->lock);
410 phead = get_list_head(queue);
411 plist = phead->next;
412
413 while (phead != plist) {
414 pnetwork = container_of(plist, struct wlan_network, list);
415
416 if (is_same_network(&(pnetwork->network), target))
417 break;
418 if ((oldest == ((struct wlan_network *)0)) ||
419 time_after(oldest->last_scanned, pnetwork->last_scanned))
420 oldest = pnetwork;
421 plist = plist->next;
422 }
423 /* If we didn't find a match, then get a new network slot to initialize
424 * with this beacon's information
425 */
426 if (phead == plist) {
427 if (list_empty(&(pmlmepriv->free_bss_pool.queue))) {
428 /* If there are no more slots, expire the oldest */
429 pnetwork = oldest;
430
431 rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(target->PhyInfo.Optimum_antenna));
432 memcpy(&(pnetwork->network), target, get_wlan_bssid_ex_sz(target));
433 /* variable initialize */
434 pnetwork->fixed = false;
435 pnetwork->last_scanned = jiffies;
436
437 pnetwork->network_type = 0;
438 pnetwork->aid = 0;
439 pnetwork->join_res = 0;
440
441 /* bss info not receiving from the right channel */
442 if (pnetwork->network.PhyInfo.SignalQuality == 101)
443 pnetwork->network.PhyInfo.SignalQuality = 0;
444 } else {
445 /* Otherwise just pull from the free list */
446
447 pnetwork = rtw_alloc_network(pmlmepriv); /* will update scan_time */
448
449 if (!pnetwork) {
450 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n\n\nsomething wrong here\n\n\n"));
451 goto exit;
452 }
453
454 bssid_ex_sz = get_wlan_bssid_ex_sz(target);
455 target->Length = bssid_ex_sz;
456 rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(target->PhyInfo.Optimum_antenna));
457 memcpy(&(pnetwork->network), target, bssid_ex_sz);
458
459 pnetwork->last_scanned = jiffies;
460
461 /* bss info not receiving from the right channel */
462 if (pnetwork->network.PhyInfo.SignalQuality == 101)
463 pnetwork->network.PhyInfo.SignalQuality = 0;
464 list_add_tail(&(pnetwork->list), &(queue->queue));
465 }
466 } else {
467 /* we have an entry and we are going to update it. But this entry may
468 * be already expired. In this case we do the same as we found a new
469 * net and call the new_net handler
470 */
471 bool update_ie = true;
472
473 pnetwork->last_scanned = jiffies;
474
475 /* target.Reserved[0]== 1, means that scanned network is a bcn frame. */
476 if ((pnetwork->network.ie_length > target->ie_length) && (target->Reserved[0] == 1))
477 update_ie = false;
478
479 update_network(&(pnetwork->network), target, adapter, update_ie);
480 }
481
482 exit:
483 spin_unlock_bh(&queue->lock);
484 }
485
rtw_add_network(struct adapter * adapter,struct wlan_bssid_ex * pnetwork)486 static void rtw_add_network(struct adapter *adapter,
487 struct wlan_bssid_ex *pnetwork)
488 {
489 update_current_network(adapter, pnetwork);
490 rtw_update_scanned_network(adapter, pnetwork);
491 }
492
493 /*
494 * select the desired network based on the capability of the (i)bss.
495 * check items: (1) security
496 * (2) network_type
497 * (3) WMM
498 * (4) HT
499 * (5) others
500 */
rtw_is_desired_network(struct adapter * adapter,struct wlan_network * pnetwork)501 static int rtw_is_desired_network(struct adapter *adapter, struct wlan_network *pnetwork)
502 {
503 struct security_priv *psecuritypriv = &adapter->securitypriv;
504 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
505 u32 desired_encmode;
506 u32 privacy;
507
508 /* u8 wps_ie[512]; */
509 uint wps_ielen;
510
511 int bselected = true;
512
513 desired_encmode = psecuritypriv->ndisencryptstatus;
514 privacy = pnetwork->network.Privacy;
515
516 if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
517 if (rtw_get_wps_ie(pnetwork->network.ies+_FIXED_IE_LENGTH_, pnetwork->network.ie_length-_FIXED_IE_LENGTH_, NULL, &wps_ielen))
518 return true;
519 else
520 return false;
521 }
522 if (adapter->registrypriv.wifi_spec == 1) { /* for correct flow of 8021X to do.... */
523 if ((desired_encmode == Ndis802_11EncryptionDisabled) && (privacy != 0))
524 bselected = false;
525 }
526
527 if ((desired_encmode != Ndis802_11EncryptionDisabled) && (privacy == 0)) {
528 DBG_88E("desired_encmode: %d, privacy: %d\n", desired_encmode, privacy);
529 bselected = false;
530 }
531
532 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) {
533 if (pnetwork->network.InfrastructureMode != pmlmepriv->cur_network.network.InfrastructureMode)
534 bselected = false;
535 }
536
537 return bselected;
538 }
539
540 /* TODO: Perry: For Power Management */
rtw_atimdone_event_callback(struct adapter * adapter,u8 * pbuf)541 void rtw_atimdone_event_callback(struct adapter *adapter, u8 *pbuf)
542 {
543 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("receive atimdone_evet\n"));
544 }
545
rtw_survey_event_callback(struct adapter * adapter,u8 * pbuf)546 void rtw_survey_event_callback(struct adapter *adapter, u8 *pbuf)
547 {
548 u32 len;
549 struct wlan_bssid_ex *pnetwork;
550 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
551
552 pnetwork = (struct wlan_bssid_ex *)pbuf;
553
554 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_survey_event_callback, ssid=%s\n", pnetwork->Ssid.Ssid));
555
556 len = get_wlan_bssid_ex_sz(pnetwork);
557 if (len > (sizeof(struct wlan_bssid_ex))) {
558 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n****rtw_survey_event_callback: return a wrong bss ***\n"));
559 return;
560 }
561 spin_lock_bh(&pmlmepriv->lock);
562
563 /* update IBSS_network 's timestamp */
564 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) == true) {
565 if (!memcmp(&(pmlmepriv->cur_network.network.MacAddress), pnetwork->MacAddress, ETH_ALEN)) {
566 struct wlan_network *ibss_wlan = NULL;
567
568 memcpy(pmlmepriv->cur_network.network.ies, pnetwork->ies, 8);
569 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
570 ibss_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->MacAddress);
571 if (ibss_wlan) {
572 memcpy(ibss_wlan->network.ies, pnetwork->ies, 8);
573 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
574 goto exit;
575 }
576 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
577 }
578 }
579
580 /* lock pmlmepriv->lock when you accessing network_q */
581 if ((check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) == false) {
582 if (pnetwork->Ssid.Ssid[0] == 0)
583 pnetwork->Ssid.SsidLength = 0;
584 rtw_add_network(adapter, pnetwork);
585 }
586
587 exit:
588
589 spin_unlock_bh(&pmlmepriv->lock);
590 return;
591 }
592
rtw_surveydone_event_callback(struct adapter * adapter,u8 * pbuf)593 void rtw_surveydone_event_callback(struct adapter *adapter, u8 *pbuf)
594 {
595 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
596
597 spin_lock_bh(&pmlmepriv->lock);
598
599 if (pmlmepriv->wps_probe_req_ie) {
600 pmlmepriv->wps_probe_req_ie_len = 0;
601 kfree(pmlmepriv->wps_probe_req_ie);
602 pmlmepriv->wps_probe_req_ie = NULL;
603 }
604
605 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_surveydone_event_callback: fw_state:%x\n\n", get_fwstate(pmlmepriv)));
606
607 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
608 del_timer_sync(&pmlmepriv->scan_to_timer);
609 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
610 } else {
611 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("nic status=%x, survey done event comes too late!\n", get_fwstate(pmlmepriv)));
612 }
613
614 rtw_set_signal_stat_timer(&adapter->recvpriv);
615
616 if (pmlmepriv->to_join) {
617 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true)) {
618 if (check_fwstate(pmlmepriv, _FW_LINKED) == false) {
619 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
620
621 if (rtw_select_and_join_from_scanned_queue(pmlmepriv) == _SUCCESS) {
622 mod_timer(&pmlmepriv->assoc_timer,
623 jiffies + msecs_to_jiffies(MAX_JOIN_TIMEOUT));
624 } else {
625 struct wlan_bssid_ex *pdev_network = &(adapter->registrypriv.dev_network);
626 u8 *pibss = adapter->registrypriv.dev_network.MacAddress;
627
628 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
629
630 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("switching to adhoc master\n"));
631
632 memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
633
634 rtw_update_registrypriv_dev_network(adapter);
635 rtw_generate_random_ibss(pibss);
636
637 pmlmepriv->fw_state = WIFI_ADHOC_MASTER_STATE;
638
639 if (rtw_createbss_cmd(adapter) != _SUCCESS)
640 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Error=>rtw_createbss_cmd status FAIL\n"));
641 pmlmepriv->to_join = false;
642 }
643 }
644 } else {
645 int s_ret;
646
647 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
648 pmlmepriv->to_join = false;
649 s_ret = rtw_select_and_join_from_scanned_queue(pmlmepriv);
650 if (s_ret == _SUCCESS) {
651 mod_timer(&pmlmepriv->assoc_timer,
652 jiffies + msecs_to_jiffies(MAX_JOIN_TIMEOUT));
653 } else if (s_ret == 2) { /* there is no need to wait for join */
654 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
655 rtw_indicate_connect(adapter);
656 } else {
657 DBG_88E("try_to_join, but select scanning queue fail, to_roaming:%d\n", pmlmepriv->to_roaming);
658 if (pmlmepriv->to_roaming != 0) {
659 if (--pmlmepriv->to_roaming == 0 ||
660 rtw_sitesurvey_cmd(adapter, &pmlmepriv->assoc_ssid, 1, NULL, 0) != _SUCCESS) {
661 pmlmepriv->to_roaming = 0;
662 rtw_free_assoc_resources(adapter);
663 rtw_indicate_disconnect(adapter);
664 } else {
665 pmlmepriv->to_join = true;
666 }
667 }
668 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
669 }
670 }
671 }
672
673 indicate_wx_scan_complete_event(adapter);
674
675 spin_unlock_bh(&pmlmepriv->lock);
676
677 rtw_os_xmit_schedule(adapter);
678 }
679
rtw_dummy_event_callback(struct adapter * adapter,u8 * pbuf)680 void rtw_dummy_event_callback(struct adapter *adapter, u8 *pbuf)
681 {
682 }
683
rtw_fwdbg_event_callback(struct adapter * adapter,u8 * pbuf)684 void rtw_fwdbg_event_callback(struct adapter *adapter, u8 *pbuf)
685 {
686 }
687
free_scanqueue(struct mlme_priv * pmlmepriv)688 static void free_scanqueue(struct mlme_priv *pmlmepriv)
689 {
690 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
691 struct __queue *scan_queue = &pmlmepriv->scanned_queue;
692 struct list_head *plist, *phead, *ptemp;
693
694 RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, ("+free_scanqueue\n"));
695 spin_lock_bh(&scan_queue->lock);
696 spin_lock_bh(&free_queue->lock);
697
698 phead = get_list_head(scan_queue);
699 plist = phead->next;
700
701 while (plist != phead) {
702 ptemp = plist->next;
703 list_del_init(plist);
704 list_add_tail(plist, &free_queue->queue);
705 plist = ptemp;
706 }
707
708 spin_unlock_bh(&free_queue->lock);
709 spin_unlock_bh(&scan_queue->lock);
710 }
711
712 /*
713 * rtw_free_assoc_resources: the caller has to lock pmlmepriv->lock
714 */
rtw_free_assoc_resources(struct adapter * adapter)715 void rtw_free_assoc_resources(struct adapter *adapter)
716 {
717 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
718
719 spin_lock_bh(&pmlmepriv->scanned_queue.lock);
720 rtw_free_assoc_resources_locked(adapter);
721 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
722 }
723
724 /*
725 * rtw_free_assoc_resources_locked: the caller has to lock pmlmepriv->lock
726 */
rtw_free_assoc_resources_locked(struct adapter * adapter)727 void rtw_free_assoc_resources_locked(struct adapter *adapter)
728 {
729 struct wlan_network *pwlan = NULL;
730 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
731 struct sta_priv *pstapriv = &adapter->stapriv;
732 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
733
734 RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, ("+rtw_free_assoc_resources\n"));
735 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
736 ("tgt_network->network.MacAddress=%pM ssid=%s\n",
737 tgt_network->network.MacAddress, tgt_network->network.Ssid.Ssid));
738
739 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE)) {
740 struct sta_info *psta;
741
742 psta = rtw_get_stainfo(&adapter->stapriv, tgt_network->network.MacAddress);
743
744 spin_lock_bh(&(pstapriv->sta_hash_lock));
745 rtw_free_stainfo(adapter, psta);
746 spin_unlock_bh(&pstapriv->sta_hash_lock);
747 }
748
749 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE | WIFI_AP_STATE)) {
750 struct sta_info *psta;
751
752 rtw_free_all_stainfo(adapter);
753
754 psta = rtw_get_bcmc_stainfo(adapter);
755 spin_lock_bh(&(pstapriv->sta_hash_lock));
756 rtw_free_stainfo(adapter, psta);
757 spin_unlock_bh(&pstapriv->sta_hash_lock);
758
759 rtw_init_bcmc_stainfo(adapter);
760 }
761
762 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
763 if (pwlan)
764 pwlan->fixed = false;
765 else
766 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_free_assoc_resources:pwlan==NULL\n\n"));
767
768 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) && (adapter->stapriv.asoc_sta_count == 1)))
769 rtw_free_network_nolock(pmlmepriv, pwlan);
770
771 pmlmepriv->key_mask = 0;
772 }
773
774 /*
775 * rtw_indicate_connect: the caller has to lock pmlmepriv->lock
776 */
rtw_indicate_connect(struct adapter * padapter)777 void rtw_indicate_connect(struct adapter *padapter)
778 {
779 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
780
781 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+%s\n", __func__));
782
783 pmlmepriv->to_join = false;
784
785 if (!check_fwstate(&padapter->mlmepriv, _FW_LINKED)) {
786 set_fwstate(pmlmepriv, _FW_LINKED);
787
788 LedControl8188eu(padapter, LED_CTL_LINK);
789
790 rtw_os_indicate_connect(padapter);
791 }
792
793 pmlmepriv->to_roaming = 0;
794
795 rtw_set_scan_deny(padapter, 3000);
796
797 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("-%s: fw_state=0x%08x\n", __func__, get_fwstate(pmlmepriv)));
798 }
799
800 /*
801 * rtw_indicate_disconnect: the caller has to lock pmlmepriv->lock
802 */
rtw_indicate_disconnect(struct adapter * padapter)803 void rtw_indicate_disconnect(struct adapter *padapter)
804 {
805 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
806
807 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_indicate_disconnect\n"));
808
809 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING | WIFI_UNDER_WPS);
810
811 if (pmlmepriv->to_roaming > 0)
812 _clr_fwstate_(pmlmepriv, _FW_LINKED);
813
814 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) ||
815 (pmlmepriv->to_roaming <= 0)) {
816 rtw_os_indicate_disconnect(padapter);
817
818 _clr_fwstate_(pmlmepriv, _FW_LINKED);
819 LedControl8188eu(padapter, LED_CTL_NO_LINK);
820 rtw_clear_scan_deny(padapter);
821 }
822
823 rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_DISCONNECT, 1);
824 }
825
rtw_indicate_scan_done(struct adapter * padapter,bool aborted)826 inline void rtw_indicate_scan_done(struct adapter *padapter, bool aborted)
827 {
828 rtw_os_indicate_scan_done(padapter, aborted);
829 }
830
rtw_scan_abort(struct adapter * adapter)831 void rtw_scan_abort(struct adapter *adapter)
832 {
833 unsigned long start;
834 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
835 struct mlme_ext_priv *pmlmeext = &(adapter->mlmeextpriv);
836
837 start = jiffies;
838 pmlmeext->scan_abort = true;
839 while (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY) &&
840 jiffies_to_msecs(jiffies - start) <= 200) {
841 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
842 break;
843 DBG_88E(FUNC_NDEV_FMT"fw_state=_FW_UNDER_SURVEY!\n", FUNC_NDEV_ARG(adapter->pnetdev));
844 msleep(20);
845 }
846 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
847 if (!adapter->bDriverStopped && !adapter->bSurpriseRemoved)
848 DBG_88E(FUNC_NDEV_FMT"waiting for scan_abort time out!\n", FUNC_NDEV_ARG(adapter->pnetdev));
849 rtw_indicate_scan_done(adapter, true);
850 }
851 pmlmeext->scan_abort = false;
852 }
853
rtw_joinbss_update_stainfo(struct adapter * padapter,struct wlan_network * pnetwork)854 static struct sta_info *rtw_joinbss_update_stainfo(struct adapter *padapter, struct wlan_network *pnetwork)
855 {
856 int i;
857 struct sta_info *bmc_sta, *psta = NULL;
858 struct recv_reorder_ctrl *preorder_ctrl;
859 struct sta_priv *pstapriv = &padapter->stapriv;
860
861 psta = rtw_get_stainfo(pstapriv, pnetwork->network.MacAddress);
862 if (!psta)
863 psta = rtw_alloc_stainfo(pstapriv, pnetwork->network.MacAddress);
864
865 if (psta) { /* update ptarget_sta */
866 DBG_88E("%s\n", __func__);
867 psta->aid = pnetwork->join_res;
868 psta->mac_id = 0;
869 /* sta mode */
870 rtw_hal_set_odm_var(padapter, HAL_ODM_STA_INFO, psta, true);
871 /* security related */
872 if (padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
873 padapter->securitypriv.binstallGrpkey = false;
874 padapter->securitypriv.busetkipkey = false;
875 padapter->securitypriv.bgrpkey_handshake = false;
876 psta->ieee8021x_blocked = true;
877 psta->dot118021XPrivacy = padapter->securitypriv.dot11PrivacyAlgrthm;
878 memset((u8 *)&psta->dot118021x_UncstKey, 0, sizeof(union Keytype));
879 memset((u8 *)&psta->dot11tkiprxmickey, 0, sizeof(union Keytype));
880 memset((u8 *)&psta->dot11tkiptxmickey, 0, sizeof(union Keytype));
881 memset((u8 *)&psta->dot11txpn, 0, sizeof(union pn48));
882 memset((u8 *)&psta->dot11rxpn, 0, sizeof(union pn48));
883 }
884 /*
885 * Commented by Albert 2012/07/21
886 * When doing the WPS, the wps_ie_len won't equal to 0
887 * And the Wi-Fi driver shouldn't allow the data
888 * packet to be transmitted.
889 */
890 if (padapter->securitypriv.wps_ie_len != 0) {
891 psta->ieee8021x_blocked = true;
892 padapter->securitypriv.wps_ie_len = 0;
893 }
894 /* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info */
895 /* if A-MPDU Rx is enabled, resetting rx_ordering_ctrl wstart_b(indicate_seq) to default value = 0xffff */
896 /* todo: check if AP can send A-MPDU packets */
897 for (i = 0; i < 16; i++) {
898 /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
899 preorder_ctrl = &psta->recvreorder_ctrl[i];
900 preorder_ctrl->enable = false;
901 preorder_ctrl->indicate_seq = 0xffff;
902 preorder_ctrl->wend_b = 0xffff;
903 preorder_ctrl->wsize_b = 64;/* max_ampdu_sz; ex. 32(kbytes) -> wsize_b = 32 */
904 }
905 bmc_sta = rtw_get_bcmc_stainfo(padapter);
906 if (bmc_sta) {
907 for (i = 0; i < 16; i++) {
908 /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
909 preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
910 preorder_ctrl->enable = false;
911 preorder_ctrl->indicate_seq = 0xffff;
912 preorder_ctrl->wend_b = 0xffff;
913 preorder_ctrl->wsize_b = 64;/* max_ampdu_sz; ex. 32(kbytes) -> wsize_b = 32 */
914 }
915 }
916 /* misc. */
917 update_sta_info(padapter, psta);
918 }
919 return psta;
920 }
921
922 /* pnetwork: returns from rtw_joinbss_event_callback */
923 /* ptarget_wlan: found from scanned_queue */
rtw_joinbss_update_network(struct adapter * padapter,struct wlan_network * ptarget_wlan,struct wlan_network * pnetwork)924 static void rtw_joinbss_update_network(struct adapter *padapter, struct wlan_network *ptarget_wlan, struct wlan_network *pnetwork)
925 {
926 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
927 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
928
929 DBG_88E("%s\n", __func__);
930
931 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
932 ("\nfw_state:%x, BSSID:%pM\n",
933 get_fwstate(pmlmepriv), pnetwork->network.MacAddress));
934
935 /* why not use ptarget_wlan?? */
936 memcpy(&cur_network->network, &pnetwork->network, pnetwork->network.Length);
937 /* some ies in pnetwork is wrong, so we should use ptarget_wlan ies */
938 cur_network->network.ie_length = ptarget_wlan->network.ie_length;
939 memcpy(&cur_network->network.ies[0], &ptarget_wlan->network.ies[0], MAX_IE_SZ);
940
941 cur_network->aid = pnetwork->join_res;
942
943 rtw_set_signal_stat_timer(&padapter->recvpriv);
944 padapter->recvpriv.signal_strength = ptarget_wlan->network.PhyInfo.SignalStrength;
945 padapter->recvpriv.signal_qual = ptarget_wlan->network.PhyInfo.SignalQuality;
946 /* the ptarget_wlan->network.Rssi is raw data, we use ptarget_wlan->network.PhyInfo.SignalStrength instead (has scaled) */
947 padapter->recvpriv.rssi = translate_percentage_to_dbm(ptarget_wlan->network.PhyInfo.SignalStrength);
948 rtw_set_signal_stat_timer(&padapter->recvpriv);
949
950 /* update fw_state will clr _FW_UNDER_LINKING here indirectly */
951 switch (pnetwork->network.InfrastructureMode) {
952 case Ndis802_11Infrastructure:
953 if (pmlmepriv->fw_state&WIFI_UNDER_WPS)
954 pmlmepriv->fw_state = WIFI_STATION_STATE|WIFI_UNDER_WPS;
955 else
956 pmlmepriv->fw_state = WIFI_STATION_STATE;
957 break;
958 case Ndis802_11IBSS:
959 pmlmepriv->fw_state = WIFI_ADHOC_STATE;
960 break;
961 default:
962 pmlmepriv->fw_state = WIFI_NULL_STATE;
963 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Invalid network_mode\n"));
964 break;
965 }
966
967 rtw_update_protection(padapter, (cur_network->network.ies) +
968 sizeof(struct ndis_802_11_fixed_ie),
969 (cur_network->network.ie_length));
970 rtw_update_ht_cap(padapter, cur_network->network.ies, cur_network->network.ie_length);
971 }
972
973 /* Notes: the function could be > passive_level (the same context as Rx tasklet) */
974 /* pnetwork: returns from rtw_joinbss_event_callback */
975 /* ptarget_wlan: found from scanned_queue */
976 /* if join_res > 0, for (fw_state == WIFI_STATION_STATE), we check if "ptarget_sta" & "ptarget_wlan" exist. */
977 /* if join_res > 0, for (fw_state == WIFI_ADHOC_STATE), we only check if "ptarget_wlan" exist. */
978 /* if join_res > 0, update "cur_network->network" from "pnetwork->network" if (ptarget_wlan != NULL). */
979
rtw_joinbss_event_prehandle(struct adapter * adapter,u8 * pbuf)980 void rtw_joinbss_event_prehandle(struct adapter *adapter, u8 *pbuf)
981 {
982 struct sta_info *ptarget_sta = NULL, *pcur_sta = NULL;
983 struct sta_priv *pstapriv = &adapter->stapriv;
984 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
985 struct wlan_network *pnetwork = (struct wlan_network *)pbuf;
986 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
987 struct wlan_network *pcur_wlan = NULL, *ptarget_wlan = NULL;
988 unsigned int the_same_macaddr = false;
989
990 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("joinbss event call back received with res=%d\n", pnetwork->join_res));
991
992 rtw_get_encrypt_decrypt_from_registrypriv(adapter);
993
994 if (pmlmepriv->assoc_ssid.SsidLength == 0)
995 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("@@@@@ joinbss event call back for Any SSid\n"));
996 else
997 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("@@@@@ rtw_joinbss_event_callback for SSid:%s\n", pmlmepriv->assoc_ssid.Ssid));
998
999 the_same_macaddr = !memcmp(pnetwork->network.MacAddress, cur_network->network.MacAddress, ETH_ALEN);
1000
1001 pnetwork->network.Length = get_wlan_bssid_ex_sz(&pnetwork->network);
1002 if (pnetwork->network.Length > sizeof(struct wlan_bssid_ex)) {
1003 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n\n ***joinbss_evt_callback return a wrong bss ***\n\n"));
1004 return;
1005 }
1006
1007 spin_lock_bh(&pmlmepriv->lock);
1008
1009 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\nrtw_joinbss_event_callback!! _enter_critical\n"));
1010
1011 if (pnetwork->join_res > 0) {
1012 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1013 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
1014 /* s1. find ptarget_wlan */
1015 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1016 if (the_same_macaddr) {
1017 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1018 } else {
1019 pcur_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1020 if (pcur_wlan)
1021 pcur_wlan->fixed = false;
1022
1023 pcur_sta = rtw_get_stainfo(pstapriv, cur_network->network.MacAddress);
1024 if (pcur_sta) {
1025 spin_lock_bh(&(pstapriv->sta_hash_lock));
1026 rtw_free_stainfo(adapter, pcur_sta);
1027 spin_unlock_bh(&pstapriv->sta_hash_lock);
1028 }
1029
1030 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->network.MacAddress);
1031 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1032 if (ptarget_wlan)
1033 ptarget_wlan->fixed = true;
1034 }
1035 }
1036 } else {
1037 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->network.MacAddress);
1038 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1039 if (ptarget_wlan)
1040 ptarget_wlan->fixed = true;
1041 }
1042 }
1043
1044 /* s2. update cur_network */
1045 if (ptarget_wlan) {
1046 rtw_joinbss_update_network(adapter, ptarget_wlan, pnetwork);
1047 } else {
1048 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't find ptarget_wlan when joinbss_event callback\n"));
1049 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1050 goto ignore_joinbss_callback;
1051 }
1052
1053 /* s3. find ptarget_sta & update ptarget_sta after update cur_network only for station mode */
1054 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1055 ptarget_sta = rtw_joinbss_update_stainfo(adapter, pnetwork);
1056 if (!ptarget_sta) {
1057 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't update stainfo when joinbss_event callback\n"));
1058 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1059 goto ignore_joinbss_callback;
1060 }
1061 }
1062
1063 /* s4. indicate connect */
1064 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1065 rtw_indicate_connect(adapter);
1066 } else {
1067 /* adhoc mode will rtw_indicate_connect when rtw_stassoc_event_callback */
1068 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("adhoc mode, fw_state:%x", get_fwstate(pmlmepriv)));
1069 }
1070
1071 /* s5. Cancel assoc_timer */
1072 del_timer_sync(&pmlmepriv->assoc_timer);
1073
1074 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("Cancel assoc_timer\n"));
1075
1076 } else {
1077 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_joinbss_event_callback err: fw_state:%x", get_fwstate(pmlmepriv)));
1078 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1079 goto ignore_joinbss_callback;
1080 }
1081
1082 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1083
1084 } else if (pnetwork->join_res == -4) {
1085 rtw_reset_securitypriv(adapter);
1086 mod_timer(&pmlmepriv->assoc_timer,
1087 jiffies + msecs_to_jiffies(1));
1088
1089 if ((check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) == true) {
1090 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("fail! clear _FW_UNDER_LINKING ^^^fw_state=%x\n", get_fwstate(pmlmepriv)));
1091 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1092 }
1093 } else { /* if join_res < 0 (join fails), then try again */
1094 mod_timer(&pmlmepriv->assoc_timer,
1095 jiffies + msecs_to_jiffies(1));
1096 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1097 }
1098
1099 ignore_joinbss_callback:
1100 spin_unlock_bh(&pmlmepriv->lock);
1101 }
1102
rtw_joinbss_event_callback(struct adapter * adapter,u8 * pbuf)1103 void rtw_joinbss_event_callback(struct adapter *adapter, u8 *pbuf)
1104 {
1105 struct wlan_network *pnetwork = (struct wlan_network *)pbuf;
1106
1107 mlmeext_joinbss_event_callback(adapter, pnetwork->join_res);
1108
1109 rtw_os_xmit_schedule(adapter);
1110 }
1111
search_max_mac_id(struct adapter * padapter)1112 static u8 search_max_mac_id(struct adapter *padapter)
1113 {
1114 u8 mac_id;
1115 #if defined(CONFIG_88EU_AP_MODE)
1116 u8 aid;
1117 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
1118 struct sta_priv *pstapriv = &padapter->stapriv;
1119 #endif
1120 struct mlme_ext_priv *pmlmeext = &(padapter->mlmeextpriv);
1121 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1122
1123 #if defined(CONFIG_88EU_AP_MODE)
1124 if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
1125 for (aid = pstapriv->max_num_sta; aid > 0; aid--) {
1126 if (pstapriv->sta_aid[aid-1])
1127 break;
1128 }
1129 mac_id = aid + 1;
1130 } else
1131 #endif
1132 {/* adhoc id = 31~2 */
1133 for (mac_id = NUM_STA-1; mac_id >= IBSS_START_MAC_ID; mac_id--) {
1134 if (pmlmeinfo->FW_sta_info[mac_id].status == 1)
1135 break;
1136 }
1137 }
1138 return mac_id;
1139 }
1140
1141 /* FOR AP , AD-HOC mode */
rtw_stassoc_hw_rpt(struct adapter * adapter,struct sta_info * psta)1142 void rtw_stassoc_hw_rpt(struct adapter *adapter, struct sta_info *psta)
1143 {
1144 u16 media_status;
1145 u8 macid;
1146
1147 if (!psta)
1148 return;
1149
1150 macid = search_max_mac_id(adapter);
1151 rtw_hal_set_hwreg(adapter, HW_VAR_TX_RPT_MAX_MACID, (u8 *)&macid);
1152 media_status = (psta->mac_id<<8)|1; /* MACID|OPMODE:1 connect */
1153 rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status);
1154 }
1155
rtw_stassoc_event_callback(struct adapter * adapter,u8 * pbuf)1156 void rtw_stassoc_event_callback(struct adapter *adapter, u8 *pbuf)
1157 {
1158 struct sta_info *psta;
1159 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1160 struct stassoc_event *pstassoc = (struct stassoc_event *)pbuf;
1161 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
1162 struct wlan_network *ptarget_wlan = NULL;
1163
1164 if (rtw_access_ctrl(adapter, pstassoc->macaddr) == false)
1165 return;
1166
1167 #if defined(CONFIG_88EU_AP_MODE)
1168 if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
1169 psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1170 if (psta) {
1171 ap_sta_info_defer_update(adapter, psta);
1172 rtw_stassoc_hw_rpt(adapter, psta);
1173 }
1174 return;
1175 }
1176 #endif
1177 /* for AD-HOC mode */
1178 psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1179 if (psta) {
1180 /* the sta have been in sta_info_queue => do nothing */
1181 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Error: rtw_stassoc_event_callback: sta has been in sta_hash_queue\n"));
1182 return; /* between drv has received this event before and fw have not yet to set key to CAM_ENTRY) */
1183 }
1184 psta = rtw_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
1185 if (!psta) {
1186 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't alloc sta_info when rtw_stassoc_event_callback\n"));
1187 return;
1188 }
1189 /* to do: init sta_info variable */
1190 psta->qos_option = 0;
1191 psta->mac_id = (uint)pstassoc->cam_id;
1192 DBG_88E("%s\n", __func__);
1193 /* for ad-hoc mode */
1194 rtw_hal_set_odm_var(adapter, HAL_ODM_STA_INFO, psta, true);
1195 rtw_stassoc_hw_rpt(adapter, psta);
1196 if (adapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X)
1197 psta->dot118021XPrivacy = adapter->securitypriv.dot11PrivacyAlgrthm;
1198 psta->ieee8021x_blocked = false;
1199 spin_lock_bh(&pmlmepriv->lock);
1200 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) ||
1201 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE))) {
1202 if (adapter->stapriv.asoc_sta_count == 2) {
1203 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1204 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1205 if (ptarget_wlan)
1206 ptarget_wlan->fixed = true;
1207 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1208 /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
1209 rtw_indicate_connect(adapter);
1210 }
1211 }
1212 spin_unlock_bh(&pmlmepriv->lock);
1213 mlmeext_sta_add_event_callback(adapter, psta);
1214 }
1215
rtw_stadel_event_callback(struct adapter * adapter,u8 * pbuf)1216 void rtw_stadel_event_callback(struct adapter *adapter, u8 *pbuf)
1217 {
1218 int mac_id = -1;
1219 struct sta_info *psta;
1220 struct wlan_network *pwlan = NULL;
1221 struct wlan_bssid_ex *pdev_network = NULL;
1222 u8 *pibss = NULL;
1223 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1224 struct stadel_event *pstadel = (struct stadel_event *)pbuf;
1225 struct sta_priv *pstapriv = &adapter->stapriv;
1226 struct wlan_network *tgt_network = &(pmlmepriv->cur_network);
1227
1228 psta = rtw_get_stainfo(&adapter->stapriv, pstadel->macaddr);
1229 if (psta)
1230 mac_id = psta->mac_id;
1231 else
1232 mac_id = pstadel->mac_id;
1233
1234 DBG_88E("%s(mac_id=%d)=%pM\n", __func__, mac_id, pstadel->macaddr);
1235
1236 if (mac_id >= 0) {
1237 u16 media_status;
1238
1239 media_status = (mac_id<<8)|0; /* MACID|OPMODE:0 means disconnect */
1240 /* for STA, AP, ADHOC mode, report disconnect stauts to FW */
1241 rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status);
1242 }
1243
1244 if (check_fwstate(pmlmepriv, WIFI_AP_STATE))
1245 return;
1246
1247 mlmeext_sta_del_event_callback(adapter);
1248
1249 spin_lock_bh(&pmlmepriv->lock);
1250
1251 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
1252 if (pmlmepriv->to_roaming > 0)
1253 pmlmepriv->to_roaming--; /* this stadel_event is caused by roaming, decrease to_roaming */
1254 else if (pmlmepriv->to_roaming == 0)
1255 pmlmepriv->to_roaming = adapter->registrypriv.max_roaming_times;
1256
1257 if (*((unsigned short *)(pstadel->rsvd)) != WLAN_REASON_EXPIRATION_CHK)
1258 pmlmepriv->to_roaming = 0; /* don't roam */
1259
1260 rtw_free_uc_swdec_pending_queue(adapter);
1261
1262 rtw_free_assoc_resources(adapter);
1263 rtw_indicate_disconnect(adapter);
1264 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1265 /* remove the network entry in scanned_queue */
1266 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
1267 if (pwlan) {
1268 pwlan->fixed = false;
1269 rtw_free_network_nolock(pmlmepriv, pwlan);
1270 }
1271 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1272 _rtw_roaming(adapter, tgt_network);
1273 }
1274 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
1275 check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1276 spin_lock_bh(&(pstapriv->sta_hash_lock));
1277 rtw_free_stainfo(adapter, psta);
1278 spin_unlock_bh(&pstapriv->sta_hash_lock);
1279
1280 if (adapter->stapriv.asoc_sta_count == 1) { /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
1281 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1282 /* free old ibss network */
1283 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
1284 if (pwlan) {
1285 pwlan->fixed = false;
1286 rtw_free_network_nolock(pmlmepriv, pwlan);
1287 }
1288 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1289 /* re-create ibss */
1290 pdev_network = &(adapter->registrypriv.dev_network);
1291 pibss = adapter->registrypriv.dev_network.MacAddress;
1292
1293 memcpy(pdev_network, &tgt_network->network, get_wlan_bssid_ex_sz(&tgt_network->network));
1294
1295 memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
1296
1297 rtw_update_registrypriv_dev_network(adapter);
1298
1299 rtw_generate_random_ibss(pibss);
1300
1301 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1302 set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
1303 _clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
1304 }
1305
1306 if (rtw_createbss_cmd(adapter) != _SUCCESS)
1307 RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_err_, ("***Error=>stadel_event_callback: rtw_createbss_cmd status FAIL***\n "));
1308 }
1309 }
1310 spin_unlock_bh(&pmlmepriv->lock);
1311 }
1312
rtw_cpwm_event_callback(struct adapter * padapter,u8 * pbuf)1313 void rtw_cpwm_event_callback(struct adapter *padapter, u8 *pbuf)
1314 {
1315 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_cpwm_event_callback !!!\n"));
1316 }
1317
1318 /*
1319 * _rtw_join_timeout_handler - Timeout/failure handler for CMD JoinBss
1320 * @adapter: pointer to struct adapter structure
1321 */
_rtw_join_timeout_handler(struct timer_list * t)1322 void _rtw_join_timeout_handler (struct timer_list *t)
1323 {
1324 struct adapter *adapter =
1325 from_timer(adapter, t, mlmepriv.assoc_timer);
1326 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1327 int do_join_r;
1328
1329 DBG_88E("%s, fw_state=%x\n", __func__, get_fwstate(pmlmepriv));
1330
1331 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1332 return;
1333
1334 spin_lock_bh(&pmlmepriv->lock);
1335
1336 if (pmlmepriv->to_roaming > 0) { /* join timeout caused by roaming */
1337 while (1) {
1338 pmlmepriv->to_roaming--;
1339 if (pmlmepriv->to_roaming != 0) { /* try another , */
1340 DBG_88E("%s try another roaming\n", __func__);
1341 do_join_r = rtw_do_join(adapter);
1342 if (do_join_r != _SUCCESS) {
1343 DBG_88E("%s roaming do_join return %d\n", __func__, do_join_r);
1344 continue;
1345 }
1346 break;
1347 } else {
1348 DBG_88E("%s We've try roaming but fail\n", __func__);
1349 rtw_indicate_disconnect(adapter);
1350 break;
1351 }
1352 }
1353 } else {
1354 rtw_indicate_disconnect(adapter);
1355 free_scanqueue(pmlmepriv);/* */
1356 }
1357 spin_unlock_bh(&pmlmepriv->lock);
1358 }
1359
1360 /*
1361 * rtw_scan_timeout_handler - Timeout/Failure handler for CMD SiteSurvey
1362 * @adapter: pointer to struct adapter structure
1363 */
rtw_scan_timeout_handler(struct timer_list * t)1364 void rtw_scan_timeout_handler (struct timer_list *t)
1365 {
1366 struct adapter *adapter =
1367 from_timer(adapter, t, mlmepriv.scan_to_timer);
1368 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1369
1370 DBG_88E(FUNC_ADPT_FMT" fw_state=%x\n", FUNC_ADPT_ARG(adapter), get_fwstate(pmlmepriv));
1371 spin_lock_bh(&pmlmepriv->lock);
1372 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
1373 spin_unlock_bh(&pmlmepriv->lock);
1374 rtw_indicate_scan_done(adapter, true);
1375 }
1376
rtw_auto_scan_handler(struct adapter * padapter)1377 static void rtw_auto_scan_handler(struct adapter *padapter)
1378 {
1379 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1380
1381 /* auto site survey per 60sec */
1382 if (pmlmepriv->scan_interval > 0) {
1383 pmlmepriv->scan_interval--;
1384 if (pmlmepriv->scan_interval == 0) {
1385 DBG_88E("%s\n", __func__);
1386 rtw_set_802_11_bssid_list_scan(padapter, NULL, 0);
1387 pmlmepriv->scan_interval = SCAN_INTERVAL;/* 30*2 sec = 60sec */
1388 }
1389 }
1390 }
1391
rtw_dynamic_check_timer_handlder(struct timer_list * t)1392 void rtw_dynamic_check_timer_handlder(struct timer_list *t)
1393 {
1394 struct adapter *adapter =
1395 from_timer(adapter, t, mlmepriv.dynamic_chk_timer);
1396 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1397
1398 if (!adapter)
1399 return;
1400 if (!adapter->hw_init_completed)
1401 goto exit;
1402 if ((adapter->bDriverStopped) || (adapter->bSurpriseRemoved))
1403 goto exit;
1404 if (adapter->net_closed)
1405 goto exit;
1406 rtw_dynamic_chk_wk_cmd(adapter);
1407
1408 if (pregistrypriv->wifi_spec == 1) {
1409 /* auto site survey */
1410 rtw_auto_scan_handler(adapter);
1411 }
1412 exit:
1413 mod_timer(&adapter->mlmepriv.dynamic_chk_timer,
1414 jiffies + msecs_to_jiffies(2000));
1415 }
1416
1417 #define RTW_SCAN_RESULT_EXPIRE 2000
1418
1419 /*
1420 * Select a new join candidate from the original @param candidate and @param competitor
1421 * @return true: candidate is updated
1422 * @return false: candidate is not updated
1423 */
rtw_check_join_candidate(struct mlme_priv * pmlmepriv,struct wlan_network ** candidate,struct wlan_network * competitor)1424 static int rtw_check_join_candidate(struct mlme_priv *pmlmepriv
1425 , struct wlan_network **candidate, struct wlan_network *competitor)
1426 {
1427 int updated = false;
1428 unsigned long since_scan;
1429 struct adapter *adapter = container_of(pmlmepriv, struct adapter, mlmepriv);
1430
1431 /* check bssid, if needed */
1432 if (pmlmepriv->assoc_by_bssid) {
1433 if (memcmp(competitor->network.MacAddress, pmlmepriv->assoc_bssid, ETH_ALEN))
1434 goto exit;
1435 }
1436
1437 /* check ssid, if needed */
1438 if (pmlmepriv->assoc_ssid.SsidLength) {
1439 if (competitor->network.Ssid.SsidLength != pmlmepriv->assoc_ssid.SsidLength ||
1440 !memcmp(competitor->network.Ssid.Ssid, pmlmepriv->assoc_ssid.Ssid, pmlmepriv->assoc_ssid.SsidLength) == false)
1441 goto exit;
1442 }
1443
1444 if (rtw_is_desired_network(adapter, competitor) == false)
1445 goto exit;
1446
1447 if (pmlmepriv->to_roaming) {
1448 since_scan = jiffies - competitor->last_scanned;
1449 if (jiffies_to_msecs(since_scan) >= RTW_SCAN_RESULT_EXPIRE ||
1450 is_same_ess(&competitor->network, &pmlmepriv->cur_network.network) == false)
1451 goto exit;
1452 }
1453
1454 if (*candidate == NULL || (*candidate)->network.Rssi < competitor->network.Rssi) {
1455 *candidate = competitor;
1456 updated = true;
1457 }
1458 if (updated) {
1459 DBG_88E("[by_bssid:%u][assoc_ssid:%s]new candidate: %s(%pM rssi:%d\n",
1460 pmlmepriv->assoc_by_bssid,
1461 pmlmepriv->assoc_ssid.Ssid,
1462 (*candidate)->network.Ssid.Ssid,
1463 (*candidate)->network.MacAddress,
1464 (int)(*candidate)->network.Rssi);
1465 DBG_88E("[to_roaming:%u]\n", pmlmepriv->to_roaming);
1466 }
1467
1468 exit:
1469 return updated;
1470 }
1471
1472 /*
1473 * Calling context:
1474 * The caller of the sub-routine will be in critical section...
1475 * The caller must hold the following spinlock
1476 * pmlmepriv->lock
1477 */
1478
rtw_select_and_join_from_scanned_queue(struct mlme_priv * pmlmepriv)1479 int rtw_select_and_join_from_scanned_queue(struct mlme_priv *pmlmepriv)
1480 {
1481 int ret;
1482 struct list_head *phead;
1483 struct adapter *adapter;
1484 struct __queue *queue = &(pmlmepriv->scanned_queue);
1485 struct wlan_network *pnetwork = NULL;
1486 struct wlan_network *candidate = NULL;
1487 u8 supp_ant_div = false;
1488
1489 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1490 phead = get_list_head(queue);
1491 adapter = (struct adapter *)pmlmepriv->nic_hdl;
1492 pmlmepriv->pscanned = phead->next;
1493 while (phead != pmlmepriv->pscanned) {
1494 pnetwork = container_of(pmlmepriv->pscanned, struct wlan_network, list);
1495 if (!pnetwork) {
1496 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s return _FAIL:(pnetwork==NULL)\n", __func__));
1497 ret = _FAIL;
1498 goto exit;
1499 }
1500 pmlmepriv->pscanned = pmlmepriv->pscanned->next;
1501 rtw_check_join_candidate(pmlmepriv, &candidate, pnetwork);
1502 }
1503 if (!candidate) {
1504 DBG_88E("%s: return _FAIL(candidate==NULL)\n", __func__);
1505 ret = _FAIL;
1506 goto exit;
1507 } else {
1508 DBG_88E("%s: candidate: %s(%pM ch:%u)\n", __func__,
1509 candidate->network.Ssid.Ssid, candidate->network.MacAddress,
1510 candidate->network.Configuration.DSConfig);
1511 }
1512
1513 /* check for situation of _FW_LINKED */
1514 if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
1515 DBG_88E("%s: _FW_LINKED while ask_for_joinbss!!!\n", __func__);
1516
1517 rtw_disassoc_cmd(adapter, 0, true);
1518 rtw_indicate_disconnect(adapter);
1519 rtw_free_assoc_resources_locked(adapter);
1520 }
1521
1522 rtw_hal_get_def_var(adapter, HAL_DEF_IS_SUPPORT_ANT_DIV, &(supp_ant_div));
1523 if (supp_ant_div) {
1524 u8 cur_ant;
1525
1526 rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(cur_ant));
1527 DBG_88E("#### Opt_Ant_(%s), cur_Ant(%s)\n",
1528 (candidate->network.PhyInfo.Optimum_antenna == 2) ? "A" : "B",
1529 (cur_ant == 2) ? "A" : "B"
1530 );
1531 }
1532
1533 ret = rtw_joinbss_cmd(adapter, candidate);
1534
1535 exit:
1536 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1537 return ret;
1538 }
1539
rtw_set_auth(struct adapter * adapter,struct security_priv * psecuritypriv)1540 int rtw_set_auth(struct adapter *adapter, struct security_priv *psecuritypriv)
1541 {
1542 struct cmd_obj *pcmd;
1543 struct setauth_parm *psetauthparm;
1544 struct cmd_priv *pcmdpriv = &(adapter->cmdpriv);
1545 int res = _SUCCESS;
1546
1547 pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
1548 if (!pcmd) {
1549 res = _FAIL; /* try again */
1550 goto exit;
1551 }
1552
1553 psetauthparm = kzalloc(sizeof(struct setauth_parm), GFP_KERNEL);
1554 if (!psetauthparm) {
1555 kfree(pcmd);
1556 res = _FAIL;
1557 goto exit;
1558 }
1559 psetauthparm->mode = (unsigned char)psecuritypriv->dot11AuthAlgrthm;
1560 pcmd->cmdcode = _SetAuth_CMD_;
1561 pcmd->parmbuf = (unsigned char *)psetauthparm;
1562 pcmd->cmdsz = sizeof(struct setauth_parm);
1563 pcmd->rsp = NULL;
1564 pcmd->rspsz = 0;
1565 INIT_LIST_HEAD(&pcmd->list);
1566 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1567 ("after enqueue set_auth_cmd, auth_mode=%x\n",
1568 psecuritypriv->dot11AuthAlgrthm));
1569 res = rtw_enqueue_cmd(pcmdpriv, pcmd);
1570 exit:
1571 return res;
1572 }
1573
rtw_set_key(struct adapter * adapter,struct security_priv * psecuritypriv,int keyid,u8 set_tx)1574 int rtw_set_key(struct adapter *adapter, struct security_priv *psecuritypriv, int keyid, u8 set_tx)
1575 {
1576 u8 keylen;
1577 struct cmd_obj *pcmd;
1578 struct setkey_parm *psetkeyparm;
1579 struct cmd_priv *pcmdpriv = &(adapter->cmdpriv);
1580 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1581 int res = _SUCCESS;
1582
1583 pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
1584 if (!pcmd)
1585 return _FAIL; /* try again */
1586
1587 psetkeyparm = kzalloc(sizeof(struct setkey_parm), GFP_KERNEL);
1588 if (!psetkeyparm) {
1589 res = _FAIL;
1590 goto err_free_cmd;
1591 }
1592
1593 if (psecuritypriv->dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
1594 psetkeyparm->algorithm = (unsigned char)psecuritypriv->dot118021XGrpPrivacy;
1595 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1596 ("\n rtw_set_key: psetkeyparm->algorithm=(unsigned char)psecuritypriv->dot118021XGrpPrivacy=%d\n",
1597 psetkeyparm->algorithm));
1598 } else {
1599 psetkeyparm->algorithm = (u8)psecuritypriv->dot11PrivacyAlgrthm;
1600 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1601 ("\n rtw_set_key: psetkeyparm->algorithm=(u8)psecuritypriv->dot11PrivacyAlgrthm=%d\n",
1602 psetkeyparm->algorithm));
1603 }
1604 psetkeyparm->keyid = (u8)keyid;/* 0~3 */
1605 psetkeyparm->set_tx = set_tx;
1606 pmlmepriv->key_mask |= BIT(psetkeyparm->keyid);
1607 DBG_88E("==> rtw_set_key algorithm(%x), keyid(%x), key_mask(%x)\n",
1608 psetkeyparm->algorithm, psetkeyparm->keyid, pmlmepriv->key_mask);
1609 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1610 ("\n rtw_set_key: psetkeyparm->algorithm=%d psetkeyparm->keyid=(u8)keyid=%d\n",
1611 psetkeyparm->algorithm, keyid));
1612
1613 switch (psetkeyparm->algorithm) {
1614 case _WEP40_:
1615 keylen = 5;
1616 memcpy(&(psetkeyparm->key[0]), &(psecuritypriv->dot11DefKey[keyid].skey[0]), keylen);
1617 break;
1618 case _WEP104_:
1619 keylen = 13;
1620 memcpy(&(psetkeyparm->key[0]), &(psecuritypriv->dot11DefKey[keyid].skey[0]), keylen);
1621 break;
1622 case _TKIP_:
1623 keylen = 16;
1624 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
1625 psetkeyparm->grpkey = 1;
1626 break;
1627 case _AES_:
1628 keylen = 16;
1629 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
1630 psetkeyparm->grpkey = 1;
1631 break;
1632 default:
1633 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1634 ("\n rtw_set_key:psecuritypriv->dot11PrivacyAlgrthm=%x (must be 1 or 2 or 4 or 5)\n",
1635 psecuritypriv->dot11PrivacyAlgrthm));
1636 res = _FAIL;
1637 goto err_free_parm;
1638 }
1639 pcmd->cmdcode = _SetKey_CMD_;
1640 pcmd->parmbuf = (u8 *)psetkeyparm;
1641 pcmd->cmdsz = sizeof(struct setkey_parm);
1642 pcmd->rsp = NULL;
1643 pcmd->rspsz = 0;
1644 INIT_LIST_HEAD(&pcmd->list);
1645 res = rtw_enqueue_cmd(pcmdpriv, pcmd);
1646 return res;
1647
1648 err_free_parm:
1649 kfree(psetkeyparm);
1650 err_free_cmd:
1651 kfree(pcmd);
1652 return res;
1653 }
1654
1655 /* 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)1656 int rtw_restruct_wmm_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len, uint initial_out_len)
1657 {
1658 unsigned int ielength = 0;
1659 unsigned int i, j;
1660
1661 /* i = 12; after the fixed IE */
1662 for (i = 12; i < in_len; i += (in_ie[i + 1] + 2) /* to the next IE element */) {
1663 ielength = initial_out_len;
1664
1665 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) {
1666 /* WMM element ID and OUI */
1667 /* Append WMM IE to the last index of out_ie */
1668
1669 for (j = i; j < i + 9; j++) {
1670 out_ie[ielength] = in_ie[j];
1671 ielength++;
1672 }
1673 out_ie[initial_out_len + 1] = 0x07;
1674 out_ie[initial_out_len + 6] = 0x00;
1675 out_ie[initial_out_len + 8] = 0x00;
1676 break;
1677 }
1678 }
1679 return ielength;
1680 }
1681
1682 /*
1683 * Ported from 8185: IsInPreAuthKeyList().
1684 * (Renamed from SecIsInPreAuthKeyList(), 2006-10-13.)
1685 * Added by Annie, 2006-05-07.
1686 * Search by BSSID,
1687 * Return Value:
1688 * -1 :if there is no pre-auth key in the table
1689 * >= 0 :if there is pre-auth key, and return the entry id
1690 */
SecIsInPMKIDList(struct adapter * Adapter,u8 * bssid)1691 static int SecIsInPMKIDList(struct adapter *Adapter, u8 *bssid)
1692 {
1693 struct security_priv *psecuritypriv = &Adapter->securitypriv;
1694 int i = 0;
1695
1696 do {
1697 if ((psecuritypriv->PMKIDList[i].bUsed) &&
1698 (!memcmp(psecuritypriv->PMKIDList[i].Bssid, bssid, ETH_ALEN)))
1699 break;
1700 } while (++i < NUM_PMKID_CACHE);
1701
1702 if (i == NUM_PMKID_CACHE)
1703 i = -1;/* Could not find. */
1704
1705 return i;
1706 }
1707
1708 /* */
1709 /* Check the RSN IE length */
1710 /* If the RSN IE length <= 20, the RSN IE didn't include the PMKID information */
1711 /* 0-11th element in the array are the fixed IE */
1712 /* 12th element in the array is the IE */
1713 /* 13th element in the array is the IE length */
1714 /* */
1715
rtw_append_pmkid(struct adapter * Adapter,int iEntry,u8 * ie,uint ie_len)1716 static int rtw_append_pmkid(struct adapter *Adapter, int iEntry, u8 *ie, uint ie_len)
1717 {
1718 struct security_priv *psecuritypriv = &Adapter->securitypriv;
1719
1720 if (ie[13] <= 20) {
1721 /* The RSN IE didn't include the PMK ID, append the PMK information */
1722 ie[ie_len] = 1;
1723 ie_len++;
1724 ie[ie_len] = 0; /* PMKID count = 0x0100 */
1725 ie_len++;
1726 memcpy(&ie[ie_len], &psecuritypriv->PMKIDList[iEntry].PMKID, 16);
1727
1728 ie_len += 16;
1729 ie[13] += 18;/* PMKID length = 2+16 */
1730 }
1731 return ie_len;
1732 }
1733
rtw_restruct_sec_ie(struct adapter * adapter,u8 * in_ie,u8 * out_ie,uint in_len)1734 int rtw_restruct_sec_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len)
1735 {
1736 u8 authmode;
1737 uint ielength;
1738 int iEntry;
1739
1740 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1741 struct security_priv *psecuritypriv = &adapter->securitypriv;
1742 uint ndisauthmode = psecuritypriv->ndisauthtype;
1743 uint ndissecuritytype = psecuritypriv->ndisencryptstatus;
1744
1745 RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_,
1746 ("+%s: ndisauthmode=%d ndissecuritytype=%d\n", __func__,
1747 ndisauthmode, ndissecuritytype));
1748
1749 /* copy fixed ie only */
1750 memcpy(out_ie, in_ie, 12);
1751 ielength = 12;
1752 if ((ndisauthmode == Ndis802_11AuthModeWPA) ||
1753 (ndisauthmode == Ndis802_11AuthModeWPAPSK))
1754 authmode = _WPA_IE_ID_;
1755 if ((ndisauthmode == Ndis802_11AuthModeWPA2) ||
1756 (ndisauthmode == Ndis802_11AuthModeWPA2PSK))
1757 authmode = _WPA2_IE_ID_;
1758
1759 if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
1760 memcpy(out_ie+ielength, psecuritypriv->wps_ie, psecuritypriv->wps_ie_len);
1761
1762 ielength += psecuritypriv->wps_ie_len;
1763 } else if ((authmode == _WPA_IE_ID_) || (authmode == _WPA2_IE_ID_)) {
1764 /* copy RSN or SSN */
1765 memcpy(&out_ie[ielength], &psecuritypriv->supplicant_ie[0], psecuritypriv->supplicant_ie[1]+2);
1766 ielength += psecuritypriv->supplicant_ie[1]+2;
1767 rtw_report_sec_ie(adapter, authmode, psecuritypriv->supplicant_ie);
1768 }
1769
1770 iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
1771 if (iEntry < 0) {
1772 return ielength;
1773 } else {
1774 if (authmode == _WPA2_IE_ID_)
1775 ielength = rtw_append_pmkid(adapter, iEntry, out_ie, ielength);
1776 }
1777 return ielength;
1778 }
1779
rtw_init_registrypriv_dev_network(struct adapter * adapter)1780 void rtw_init_registrypriv_dev_network(struct adapter *adapter)
1781 {
1782 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1783 struct eeprom_priv *peepriv = &adapter->eeprompriv;
1784 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1785 u8 *myhwaddr = myid(peepriv);
1786
1787 memcpy(pdev_network->MacAddress, myhwaddr, ETH_ALEN);
1788
1789 memcpy(&pdev_network->Ssid, &pregistrypriv->ssid, sizeof(struct ndis_802_11_ssid));
1790
1791 pdev_network->Configuration.Length = sizeof(struct ndis_802_11_config);
1792 pdev_network->Configuration.BeaconPeriod = 100;
1793 pdev_network->Configuration.FHConfig.Length = 0;
1794 pdev_network->Configuration.FHConfig.HopPattern = 0;
1795 pdev_network->Configuration.FHConfig.HopSet = 0;
1796 pdev_network->Configuration.FHConfig.DwellTime = 0;
1797 }
1798
rtw_update_registrypriv_dev_network(struct adapter * adapter)1799 void rtw_update_registrypriv_dev_network(struct adapter *adapter)
1800 {
1801 int sz = 0;
1802 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1803 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1804 struct security_priv *psecuritypriv = &adapter->securitypriv;
1805 struct wlan_network *cur_network = &adapter->mlmepriv.cur_network;
1806
1807 pdev_network->Privacy = psecuritypriv->dot11PrivacyAlgrthm > 0 ? 1 : 0; /* adhoc no 802.1x */
1808
1809 pdev_network->Rssi = 0;
1810
1811 switch (pregistrypriv->wireless_mode) {
1812 case WIRELESS_11B:
1813 pdev_network->NetworkTypeInUse = Ndis802_11DS;
1814 break;
1815 case WIRELESS_11G:
1816 case WIRELESS_11BG:
1817 case WIRELESS_11_24N:
1818 case WIRELESS_11G_24N:
1819 case WIRELESS_11BG_24N:
1820 pdev_network->NetworkTypeInUse = Ndis802_11OFDM24;
1821 break;
1822 case WIRELESS_11A:
1823 case WIRELESS_11A_5N:
1824 pdev_network->NetworkTypeInUse = Ndis802_11OFDM5;
1825 break;
1826 case WIRELESS_11ABGN:
1827 if (pregistrypriv->channel > 14)
1828 pdev_network->NetworkTypeInUse = Ndis802_11OFDM5;
1829 else
1830 pdev_network->NetworkTypeInUse = Ndis802_11OFDM24;
1831 break;
1832 default:
1833 /* TODO */
1834 break;
1835 }
1836
1837 pdev_network->Configuration.DSConfig = pregistrypriv->channel;
1838 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
1839 ("pregistrypriv->channel=%d, pdev_network->Configuration.DSConfig=0x%x\n",
1840 pregistrypriv->channel, pdev_network->Configuration.DSConfig));
1841
1842 if (cur_network->network.InfrastructureMode == Ndis802_11IBSS)
1843 pdev_network->Configuration.ATIMWindow = 0;
1844
1845 pdev_network->InfrastructureMode = cur_network->network.InfrastructureMode;
1846
1847 /* 1. Supported rates */
1848 /* 2. IE */
1849
1850 sz = rtw_generate_ie(pregistrypriv);
1851 pdev_network->ie_length = sz;
1852 pdev_network->Length = get_wlan_bssid_ex_sz((struct wlan_bssid_ex *)pdev_network);
1853
1854 /* notes: translate ie_length & Length after assign the Length to cmdsz in createbss_cmd(); */
1855 /* pdev_network->ie_length = cpu_to_le32(sz); */
1856 }
1857
rtw_get_encrypt_decrypt_from_registrypriv(struct adapter * adapter)1858 void rtw_get_encrypt_decrypt_from_registrypriv(struct adapter *adapter)
1859 {
1860 }
1861
1862 /* the function is at passive_level */
rtw_joinbss_reset(struct adapter * padapter)1863 void rtw_joinbss_reset(struct adapter *padapter)
1864 {
1865 u8 threshold;
1866 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1867 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1868
1869 /* todo: if you want to do something io/reg/hw setting before join_bss, please add code here */
1870 pmlmepriv->num_FortyMHzIntolerant = 0;
1871
1872 pmlmepriv->num_sta_no_ht = 0;
1873
1874 phtpriv->ampdu_enable = false;/* reset to disabled */
1875
1876 /* TH = 1 => means that invalidate usb rx aggregation */
1877 /* TH = 0 => means that validate usb rx aggregation, use init value. */
1878 if (phtpriv->ht_option) {
1879 if (padapter->registrypriv.wifi_spec == 1)
1880 threshold = 1;
1881 else
1882 threshold = 0;
1883 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
1884 } else {
1885 threshold = 1;
1886 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
1887 }
1888 }
1889
1890 /* the function is >= passive_level */
rtw_restructure_ht_ie(struct adapter * padapter,u8 * in_ie,u8 * out_ie,uint in_len,uint * pout_len)1891 unsigned int rtw_restructure_ht_ie(struct adapter *padapter, u8 *in_ie, u8 *out_ie, uint in_len, uint *pout_len)
1892 {
1893 u32 ielen, out_len;
1894 enum ht_cap_ampdu_factor max_rx_ampdu_factor;
1895 unsigned char *p;
1896 unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
1897 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1898 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
1899 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1900 u32 rx_packet_offset, max_recvbuf_sz;
1901
1902 phtpriv->ht_option = false;
1903
1904 p = rtw_get_ie(in_ie+12, _HT_CAPABILITY_IE_, &ielen, in_len-12);
1905
1906 if (p && ielen > 0) {
1907 struct ieee80211_ht_cap ht_cap;
1908
1909 if (pqospriv->qos_option == 0) {
1910 out_len = *pout_len;
1911 rtw_set_ie(out_ie + out_len, _VENDOR_SPECIFIC_IE_,
1912 _WMM_IE_Length_, WMM_IE, pout_len);
1913
1914 pqospriv->qos_option = 1;
1915 }
1916
1917 out_len = *pout_len;
1918
1919 memset(&ht_cap, 0, sizeof(struct ieee80211_ht_cap));
1920
1921 ht_cap.cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH |
1922 IEEE80211_HT_CAP_SGI_20 |
1923 IEEE80211_HT_CAP_SGI_40 |
1924 IEEE80211_HT_CAP_TX_STBC |
1925 IEEE80211_HT_CAP_DSSSCCK40);
1926
1927 rtw_hal_get_def_var(padapter, HAL_DEF_RX_PACKET_OFFSET, &rx_packet_offset);
1928 rtw_hal_get_def_var(padapter, HAL_DEF_MAX_RECVBUF_SZ, &max_recvbuf_sz);
1929
1930 /*
1931 ampdu_params_info [1:0]:Max AMPDU Len => 0:8k , 1:16k, 2:32k, 3:64k
1932 ampdu_params_info [4:2]:Min MPDU Start Spacing
1933 */
1934
1935 rtw_hal_get_def_var(padapter, HW_VAR_MAX_RX_AMPDU_FACTOR, &max_rx_ampdu_factor);
1936 ht_cap.ampdu_params_info = max_rx_ampdu_factor & 0x03;
1937
1938 if (padapter->securitypriv.dot11PrivacyAlgrthm == _AES_)
1939 ht_cap.ampdu_params_info |= IEEE80211_HT_CAP_AMPDU_DENSITY & (0x07 << 2);
1940 else
1941 ht_cap.ampdu_params_info |= IEEE80211_HT_CAP_AMPDU_DENSITY & 0x00;
1942
1943 rtw_set_ie(out_ie+out_len, _HT_CAPABILITY_IE_,
1944 sizeof(struct ieee80211_ht_cap),
1945 (unsigned char *)&ht_cap, pout_len);
1946
1947 phtpriv->ht_option = true;
1948
1949 p = rtw_get_ie(in_ie+12, _HT_ADD_INFO_IE_, &ielen, in_len-12);
1950 if (p && (ielen == sizeof(struct ieee80211_ht_addt_info))) {
1951 out_len = *pout_len;
1952 rtw_set_ie(out_ie+out_len, _HT_ADD_INFO_IE_, ielen, p+2, pout_len);
1953 }
1954 }
1955 return phtpriv->ht_option;
1956 }
1957
1958 /* the function is > passive_level (in critical_section) */
rtw_update_ht_cap(struct adapter * padapter,u8 * pie,uint ie_len)1959 void rtw_update_ht_cap(struct adapter *padapter, u8 *pie, uint ie_len)
1960 {
1961 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1962 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1963 struct registry_priv *pregistrypriv = &padapter->registrypriv;
1964 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1965 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1966
1967 if (!phtpriv->ht_option)
1968 return;
1969
1970 if ((!pmlmeinfo->HT_info_enable) || (!pmlmeinfo->HT_caps_enable))
1971 return;
1972
1973 DBG_88E("+%s()\n", __func__);
1974
1975 /* maybe needs check if ap supports rx ampdu. */
1976 if ((!phtpriv->ampdu_enable) && (pregistrypriv->ampdu_enable == 1)) {
1977 if (pregistrypriv->wifi_spec == 1)
1978 phtpriv->ampdu_enable = false;
1979 else
1980 phtpriv->ampdu_enable = true;
1981 } else if (pregistrypriv->ampdu_enable == 2) {
1982 phtpriv->ampdu_enable = true;
1983 }
1984
1985 /* update cur_bwmode & cur_ch_offset */
1986 if ((pregistrypriv->cbw40_enable) &&
1987 (le16_to_cpu(pmlmeinfo->HT_caps.cap_info) & BIT(1)) &&
1988 (pmlmeinfo->HT_info.infos[0] & BIT(2))) {
1989 int i;
1990
1991 /* update the MCS rates */
1992 for (i = 0; i < 16; i++)
1993 ((u8 *)&pmlmeinfo->HT_caps.mcs)[i] &= MCS_rate_1R[i];
1994 /* switch to the 40M Hz mode according to the AP */
1995 pmlmeext->cur_bwmode = HT_CHANNEL_WIDTH_40;
1996 switch ((pmlmeinfo->HT_info.infos[0] & 0x3)) {
1997 case HT_EXTCHNL_OFFSET_UPPER:
1998 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_LOWER;
1999 break;
2000 case HT_EXTCHNL_OFFSET_LOWER:
2001 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_UPPER;
2002 break;
2003 default:
2004 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
2005 break;
2006 }
2007 }
2008
2009 /* Config SM Power Save setting */
2010 pmlmeinfo->SM_PS = (le16_to_cpu(pmlmeinfo->HT_caps.cap_info) & 0x0C) >> 2;
2011 if (pmlmeinfo->SM_PS == WLAN_HT_CAP_SM_PS_STATIC)
2012 DBG_88E("%s(): WLAN_HT_CAP_SM_PS_STATIC\n", __func__);
2013
2014 /* Config current HT Protection mode. */
2015 pmlmeinfo->HT_protection = pmlmeinfo->HT_info.infos[1] & 0x3;
2016 }
2017
rtw_issue_addbareq_cmd(struct adapter * padapter,struct xmit_frame * pxmitframe)2018 void rtw_issue_addbareq_cmd(struct adapter *padapter, struct xmit_frame *pxmitframe)
2019 {
2020 u8 issued;
2021 int priority;
2022 struct sta_info *psta = NULL;
2023 struct ht_priv *phtpriv;
2024 struct pkt_attrib *pattrib = &pxmitframe->attrib;
2025
2026 if (is_multicast_ether_addr(pattrib->ra) ||
2027 padapter->mlmepriv.LinkDetectInfo.NumTxOkInPeriod < 100)
2028 return;
2029
2030 priority = pattrib->priority;
2031
2032 if (pattrib->psta)
2033 psta = pattrib->psta;
2034 else
2035 psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
2036
2037 if (!psta)
2038 return;
2039
2040 phtpriv = &psta->htpriv;
2041
2042 if ((phtpriv->ht_option) && (phtpriv->ampdu_enable)) {
2043 issued = (phtpriv->agg_enable_bitmap >> priority) & 0x1;
2044 issued |= (phtpriv->candidate_tid_bitmap >> priority) & 0x1;
2045
2046 if (issued == 0) {
2047 DBG_88E("%s, p=%d\n", __func__, priority);
2048 psta->htpriv.candidate_tid_bitmap |= BIT((u8)priority);
2049 rtw_addbareq_cmd(padapter, (u8)priority, pattrib->ra);
2050 }
2051 }
2052 }
2053
rtw_roaming(struct adapter * padapter,struct wlan_network * tgt_network)2054 void rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
2055 {
2056 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2057
2058 spin_lock_bh(&pmlmepriv->lock);
2059 _rtw_roaming(padapter, tgt_network);
2060 spin_unlock_bh(&pmlmepriv->lock);
2061 }
2062
_rtw_roaming(struct adapter * padapter,struct wlan_network * tgt_network)2063 void _rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
2064 {
2065 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2066 int do_join_r;
2067
2068 struct wlan_network *pnetwork;
2069
2070 if (tgt_network)
2071 pnetwork = tgt_network;
2072 else
2073 pnetwork = &pmlmepriv->cur_network;
2074
2075 if (pmlmepriv->to_roaming > 0) {
2076 DBG_88E("roaming from %s(%pM length:%d\n",
2077 pnetwork->network.Ssid.Ssid, pnetwork->network.MacAddress,
2078 pnetwork->network.Ssid.SsidLength);
2079 memcpy(&pmlmepriv->assoc_ssid, &pnetwork->network.Ssid, sizeof(struct ndis_802_11_ssid));
2080
2081 pmlmepriv->assoc_by_bssid = false;
2082
2083 while (1) {
2084 do_join_r = rtw_do_join(padapter);
2085 if (do_join_r == _SUCCESS) {
2086 break;
2087 } else {
2088 DBG_88E("roaming do_join return %d\n", do_join_r);
2089 pmlmepriv->to_roaming--;
2090
2091 if (pmlmepriv->to_roaming > 0) {
2092 continue;
2093 } else {
2094 DBG_88E("%s(%d) -to roaming fail, indicate_disconnect\n", __func__, __LINE__);
2095 rtw_indicate_disconnect(padapter);
2096 break;
2097 }
2098 }
2099 }
2100 }
2101 }
2102
