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Merge tag 'mmc-v4.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
[mirror_ubuntu-hirsute-kernel.git] / drivers / staging / rtl8188eu / core / rtw_mlme.c
1 /******************************************************************************
2 *
3 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 ******************************************************************************/
15 #define _RTW_MLME_C_
16
17 #include <linux/ieee80211.h>
18
19 #include <osdep_service.h>
20 #include <drv_types.h>
21 #include <recv_osdep.h>
22 #include <xmit_osdep.h>
23 #include <hal_intf.h>
24 #include <mlme_osdep.h>
25 #include <sta_info.h>
26 #include <wifi.h>
27 #include <wlan_bssdef.h>
28 #include <rtw_ioctl_set.h>
29 #include <linux/vmalloc.h>
30
31 extern unsigned char MCS_rate_1R[16];
32
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 memset(&pmlmepriv->assoc_ssid, 0, sizeof(struct ndis_802_11_ssid));
55
56 pbuf = vzalloc(MAX_BSS_CNT * (sizeof(struct wlan_network)));
57
58 if (!pbuf) {
59 res = _FAIL;
60 goto exit;
61 }
62 pmlmepriv->free_bss_buf = pbuf;
63
64 pnetwork = (struct wlan_network *)pbuf;
65
66 for (i = 0; i < MAX_BSS_CNT; i++) {
67 INIT_LIST_HEAD(&(pnetwork->list));
68
69 list_add_tail(&(pnetwork->list), &(pmlmepriv->free_bss_pool.queue));
70
71 pnetwork++;
72 }
73
74 /* allocate DMA-able/Non-Page memory for cmd_buf and rsp_buf */
75
76 rtw_clear_scan_deny(padapter);
77
78 rtw_init_mlme_timer(padapter);
79
80 exit:
81 return res;
82 }
83
84 #if defined(CONFIG_88EU_AP_MODE)
85 static void rtw_free_mlme_ie_data(u8 **ppie, u32 *plen)
86 {
87 kfree(*ppie);
88 *plen = 0;
89 *ppie = NULL;
90 }
91
92 void rtw_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv)
93 {
94 rtw_buf_free(&pmlmepriv->assoc_req, &pmlmepriv->assoc_req_len);
95 rtw_buf_free(&pmlmepriv->assoc_rsp, &pmlmepriv->assoc_rsp_len);
96 rtw_free_mlme_ie_data(&pmlmepriv->wps_beacon_ie, &pmlmepriv->wps_beacon_ie_len);
97 rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_req_ie, &pmlmepriv->wps_probe_req_ie_len);
98 rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_resp_ie, &pmlmepriv->wps_probe_resp_ie_len);
99 rtw_free_mlme_ie_data(&pmlmepriv->wps_assoc_resp_ie, &pmlmepriv->wps_assoc_resp_ie_len);
100 }
101 #else
102 void rtw_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv)
103 {
104 }
105 #endif
106
107 void rtw_free_mlme_priv(struct mlme_priv *pmlmepriv)
108 {
109 if (pmlmepriv) {
110 rtw_free_mlme_priv_ie_data(pmlmepriv);
111 vfree(pmlmepriv->free_bss_buf);
112 }
113 }
114
115 struct wlan_network *_rtw_alloc_network(struct mlme_priv *pmlmepriv)
116 /* _queue *free_queue) */
117 {
118 struct wlan_network *pnetwork;
119 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
120
121 spin_lock_bh(&free_queue->lock);
122 pnetwork = list_first_entry_or_null(&free_queue->queue,
123 struct wlan_network, list);
124 if (!pnetwork)
125 goto exit;
126
127 list_del_init(&pnetwork->list);
128
129 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
130 ("_rtw_alloc_network: ptr=%p\n", &pnetwork->list));
131 pnetwork->network_type = 0;
132 pnetwork->fixed = false;
133 pnetwork->last_scanned = jiffies;
134 pnetwork->aid = 0;
135 pnetwork->join_res = 0;
136
137 exit:
138 spin_unlock_bh(&free_queue->lock);
139
140 return pnetwork;
141 }
142
143 static void _rtw_free_network(struct mlme_priv *pmlmepriv, struct wlan_network *pnetwork, u8 isfreeall)
144 {
145 unsigned long curr_time;
146 u32 delta_time;
147 u32 lifetime = SCANQUEUE_LIFETIME;
148 struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
149
150 if (!pnetwork)
151 return;
152
153 if (pnetwork->fixed)
154 return;
155 curr_time = jiffies;
156 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) ||
157 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)))
158 lifetime = 1;
159 if (!isfreeall) {
160 delta_time = (curr_time - pnetwork->last_scanned)/HZ;
161 if (delta_time < lifetime)/* unit:sec */
162 return;
163 }
164 spin_lock_bh(&free_queue->lock);
165 list_del_init(&(pnetwork->list));
166 list_add_tail(&(pnetwork->list), &(free_queue->queue));
167 spin_unlock_bh(&free_queue->lock);
168 }
169
170 void _rtw_free_network_nolock(struct mlme_priv *pmlmepriv, struct wlan_network *pnetwork)
171 {
172 struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
173
174 if (!pnetwork)
175 return;
176 if (pnetwork->fixed)
177 return;
178 list_del_init(&(pnetwork->list));
179 list_add_tail(&(pnetwork->list), get_list_head(free_queue));
180 }
181
182 /*
183 * return the wlan_network with the matching addr
184 *
185 * Shall be called under atomic context... to avoid possible racing condition...
186 */
187 struct wlan_network *rtw_find_network(struct __queue *scanned_queue, u8 *addr)
188 {
189 struct list_head *phead, *plist;
190 struct wlan_network *pnetwork = NULL;
191 u8 zero_addr[ETH_ALEN] = {0, 0, 0, 0, 0, 0};
192
193 if (!memcmp(zero_addr, addr, ETH_ALEN)) {
194 pnetwork = NULL;
195 goto exit;
196 }
197 phead = get_list_head(scanned_queue);
198 plist = phead->next;
199
200 while (plist != phead) {
201 pnetwork = container_of(plist, struct wlan_network, list);
202 if (!memcmp(addr, pnetwork->network.MacAddress, ETH_ALEN))
203 break;
204 plist = plist->next;
205 }
206 if (plist == phead)
207 pnetwork = NULL;
208 exit:
209 return pnetwork;
210 }
211
212
213 void rtw_free_network_queue(struct adapter *padapter, u8 isfreeall)
214 {
215 struct list_head *phead, *plist;
216 struct wlan_network *pnetwork;
217 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
218 struct __queue *scanned_queue = &pmlmepriv->scanned_queue;
219
220 spin_lock_bh(&scanned_queue->lock);
221
222 phead = get_list_head(scanned_queue);
223 plist = phead->next;
224
225 while (phead != plist) {
226 pnetwork = container_of(plist, struct wlan_network, list);
227
228 plist = plist->next;
229
230 _rtw_free_network(pmlmepriv, pnetwork, isfreeall);
231 }
232 spin_unlock_bh(&scanned_queue->lock);
233 }
234
235 int rtw_if_up(struct adapter *padapter)
236 {
237 int res;
238
239 if (padapter->bDriverStopped || padapter->bSurpriseRemoved ||
240 (check_fwstate(&padapter->mlmepriv, _FW_LINKED) == false)) {
241 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
242 ("rtw_if_up:bDriverStopped(%d) OR bSurpriseRemoved(%d)",
243 padapter->bDriverStopped, padapter->bSurpriseRemoved));
244 res = false;
245 } else {
246 res = true;
247 }
248 return res;
249 }
250
251 void rtw_generate_random_ibss(u8 *pibss)
252 {
253 unsigned long curtime = jiffies;
254
255 pibss[0] = 0x02; /* in ad-hoc mode bit1 must set to 1 */
256 pibss[1] = 0x11;
257 pibss[2] = 0x87;
258 pibss[3] = (u8)(curtime & 0xff);/* p[0]; */
259 pibss[4] = (u8)((curtime>>8) & 0xff);/* p[1]; */
260 pibss[5] = (u8)((curtime>>16) & 0xff);/* p[2]; */
261 }
262
263 u8 *rtw_get_capability_from_ie(u8 *ie)
264 {
265 return ie + 8 + 2;
266 }
267
268
269 u16 rtw_get_capability(struct wlan_bssid_ex *bss)
270 {
271 __le16 val;
272
273 memcpy((u8 *)&val, rtw_get_capability_from_ie(bss->IEs), 2);
274
275 return le16_to_cpu(val);
276 }
277
278 u8 *rtw_get_beacon_interval_from_ie(u8 *ie)
279 {
280 return ie + 8;
281 }
282
283 static struct wlan_network *rtw_alloc_network(struct mlme_priv *pmlmepriv)
284 {
285 return _rtw_alloc_network(pmlmepriv);
286 }
287
288 static void rtw_free_network_nolock(struct mlme_priv *pmlmepriv,
289 struct wlan_network *pnetwork)
290 {
291 _rtw_free_network_nolock(pmlmepriv, pnetwork);
292 }
293
294 int rtw_is_same_ibss(struct adapter *adapter, struct wlan_network *pnetwork)
295 {
296 int ret = true;
297 struct security_priv *psecuritypriv = &adapter->securitypriv;
298
299 if ((psecuritypriv->dot11PrivacyAlgrthm != _NO_PRIVACY_) &&
300 (pnetwork->network.Privacy == 0))
301 ret = false;
302 else if ((psecuritypriv->dot11PrivacyAlgrthm == _NO_PRIVACY_) &&
303 (pnetwork->network.Privacy == 1))
304 ret = false;
305 else
306 ret = true;
307 return ret;
308 }
309
310 static int is_same_ess(struct wlan_bssid_ex *a, struct wlan_bssid_ex *b)
311 {
312 return (a->Ssid.SsidLength == b->Ssid.SsidLength) &&
313 !memcmp(a->Ssid.Ssid, b->Ssid.Ssid, a->Ssid.SsidLength);
314 }
315
316 int is_same_network(struct wlan_bssid_ex *src, struct wlan_bssid_ex *dst)
317 {
318 u16 s_cap, d_cap;
319 __le16 le_scap, le_dcap;
320
321 memcpy((u8 *)&le_scap, rtw_get_capability_from_ie(src->IEs), 2);
322 memcpy((u8 *)&le_dcap, rtw_get_capability_from_ie(dst->IEs), 2);
323
324 s_cap = le16_to_cpu(le_scap);
325 d_cap = le16_to_cpu(le_dcap);
326
327 return ((src->Ssid.SsidLength == dst->Ssid.SsidLength) &&
328 ((!memcmp(src->MacAddress, dst->MacAddress, ETH_ALEN)) == true) &&
329 ((!memcmp(src->Ssid.Ssid, dst->Ssid.Ssid, src->Ssid.SsidLength)) == true) &&
330 ((s_cap & WLAN_CAPABILITY_IBSS) ==
331 (d_cap & WLAN_CAPABILITY_IBSS)) &&
332 ((s_cap & WLAN_CAPABILITY_ESS) ==
333 (d_cap & WLAN_CAPABILITY_ESS)));
334 }
335
336 struct wlan_network *rtw_get_oldest_wlan_network(struct __queue *scanned_queue)
337 {
338 struct list_head *plist, *phead;
339 struct wlan_network *pwlan = NULL;
340 struct wlan_network *oldest = NULL;
341
342 phead = get_list_head(scanned_queue);
343
344 for (plist = phead->next; plist != phead; plist = plist->next) {
345 pwlan = container_of(plist, struct wlan_network, list);
346
347 if (!pwlan->fixed) {
348 if (!oldest || time_after(oldest->last_scanned, pwlan->last_scanned))
349 oldest = pwlan;
350 }
351 }
352 return oldest;
353 }
354
355 void update_network(struct wlan_bssid_ex *dst, struct wlan_bssid_ex *src,
356 struct adapter *padapter, bool update_ie)
357 {
358 long rssi_ori = dst->Rssi;
359 u8 sq_smp = src->PhyInfo.SignalQuality;
360 u8 ss_final;
361 u8 sq_final;
362 long rssi_final;
363
364 rtw_hal_antdiv_rssi_compared(padapter, dst, src); /* this will update src.Rssi, need consider again */
365
366 /* The rule below is 1/5 for sample value, 4/5 for history value */
367 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) && is_same_network(&(padapter->mlmepriv.cur_network.network), src)) {
368 /* Take the recvpriv's value for the connected AP*/
369 ss_final = padapter->recvpriv.signal_strength;
370 sq_final = padapter->recvpriv.signal_qual;
371 /* the rssi value here is undecorated, and will be used for antenna diversity */
372 if (sq_smp != 101) /* from the right channel */
373 rssi_final = (src->Rssi + dst->Rssi * 4) / 5;
374 else
375 rssi_final = rssi_ori;
376 } else {
377 if (sq_smp != 101) { /* from the right channel */
378 ss_final = ((u32)(src->PhyInfo.SignalStrength)+(u32)(dst->PhyInfo.SignalStrength)*4)/5;
379 sq_final = ((u32)(src->PhyInfo.SignalQuality)+(u32)(dst->PhyInfo.SignalQuality)*4)/5;
380 rssi_final = (src->Rssi+dst->Rssi*4)/5;
381 } else {
382 /* bss info not receiving from the right channel, use the original RX signal infos */
383 ss_final = dst->PhyInfo.SignalStrength;
384 sq_final = dst->PhyInfo.SignalQuality;
385 rssi_final = dst->Rssi;
386 }
387 }
388 if (update_ie)
389 memcpy((u8 *)dst, (u8 *)src, get_wlan_bssid_ex_sz(src));
390 dst->PhyInfo.SignalStrength = ss_final;
391 dst->PhyInfo.SignalQuality = sq_final;
392 dst->Rssi = rssi_final;
393 }
394
395 static void update_current_network(struct adapter *adapter, struct wlan_bssid_ex *pnetwork)
396 {
397 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
398
399 if ((check_fwstate(pmlmepriv, _FW_LINKED) == true) &&
400 (is_same_network(&(pmlmepriv->cur_network.network), pnetwork))) {
401 update_network(&(pmlmepriv->cur_network.network), pnetwork, adapter, true);
402 rtw_update_protection(adapter, (pmlmepriv->cur_network.network.IEs) + sizeof(struct ndis_802_11_fixed_ie),
403 pmlmepriv->cur_network.network.IELength);
404 }
405 }
406
407 /*
408 * Caller must hold pmlmepriv->lock first.
409 */
410 void rtw_update_scanned_network(struct adapter *adapter, struct wlan_bssid_ex *target)
411 {
412 struct list_head *plist, *phead;
413 u32 bssid_ex_sz;
414 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
415 struct __queue *queue = &(pmlmepriv->scanned_queue);
416 struct wlan_network *pnetwork = NULL;
417 struct wlan_network *oldest = NULL;
418
419 spin_lock_bh(&queue->lock);
420 phead = get_list_head(queue);
421 plist = phead->next;
422
423 while (phead != plist) {
424 pnetwork = container_of(plist, struct wlan_network, list);
425
426 if (is_same_network(&(pnetwork->network), target))
427 break;
428 if ((oldest == ((struct wlan_network *)0)) ||
429 time_after(oldest->last_scanned, pnetwork->last_scanned))
430 oldest = pnetwork;
431 plist = plist->next;
432 }
433 /* If we didn't find a match, then get a new network slot to initialize
434 * with this beacon's information
435 */
436 if (phead == plist) {
437 if (list_empty(&(pmlmepriv->free_bss_pool.queue))) {
438 /* If there are no more slots, expire the oldest */
439 pnetwork = oldest;
440
441 rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(target->PhyInfo.Optimum_antenna));
442 memcpy(&(pnetwork->network), target, get_wlan_bssid_ex_sz(target));
443 /* variable initialize */
444 pnetwork->fixed = false;
445 pnetwork->last_scanned = jiffies;
446
447 pnetwork->network_type = 0;
448 pnetwork->aid = 0;
449 pnetwork->join_res = 0;
450
451 /* bss info not receiving from the right channel */
452 if (pnetwork->network.PhyInfo.SignalQuality == 101)
453 pnetwork->network.PhyInfo.SignalQuality = 0;
454 } else {
455 /* Otherwise just pull from the free list */
456
457 pnetwork = rtw_alloc_network(pmlmepriv); /* will update scan_time */
458
459 if (!pnetwork) {
460 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n\n\nsomething wrong here\n\n\n"));
461 goto exit;
462 }
463
464 bssid_ex_sz = get_wlan_bssid_ex_sz(target);
465 target->Length = bssid_ex_sz;
466 rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(target->PhyInfo.Optimum_antenna));
467 memcpy(&(pnetwork->network), target, bssid_ex_sz);
468
469 pnetwork->last_scanned = jiffies;
470
471 /* bss info not receiving from the right channel */
472 if (pnetwork->network.PhyInfo.SignalQuality == 101)
473 pnetwork->network.PhyInfo.SignalQuality = 0;
474 list_add_tail(&(pnetwork->list), &(queue->queue));
475 }
476 } else {
477 /* we have an entry and we are going to update it. But this entry may
478 * be already expired. In this case we do the same as we found a new
479 * net and call the new_net handler
480 */
481 bool update_ie = true;
482
483 pnetwork->last_scanned = jiffies;
484
485 /* target.Reserved[0]== 1, means that scanned network is a bcn frame. */
486 if ((pnetwork->network.IELength > target->IELength) && (target->Reserved[0] == 1))
487 update_ie = false;
488
489 update_network(&(pnetwork->network), target, adapter, update_ie);
490 }
491
492 exit:
493 spin_unlock_bh(&queue->lock);
494 }
495
496 static void rtw_add_network(struct adapter *adapter,
497 struct wlan_bssid_ex *pnetwork)
498 {
499 update_current_network(adapter, pnetwork);
500 rtw_update_scanned_network(adapter, pnetwork);
501 }
502
503 /*
504 * select the desired network based on the capability of the (i)bss.
505 * check items: (1) security
506 * (2) network_type
507 * (3) WMM
508 * (4) HT
509 * (5) others
510 */
511 static int rtw_is_desired_network(struct adapter *adapter, struct wlan_network *pnetwork)
512 {
513 struct security_priv *psecuritypriv = &adapter->securitypriv;
514 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
515 u32 desired_encmode;
516 u32 privacy;
517
518 /* u8 wps_ie[512]; */
519 uint wps_ielen;
520
521 int bselected = true;
522
523 desired_encmode = psecuritypriv->ndisencryptstatus;
524 privacy = pnetwork->network.Privacy;
525
526 if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
527 if (rtw_get_wps_ie(pnetwork->network.IEs+_FIXED_IE_LENGTH_, pnetwork->network.IELength-_FIXED_IE_LENGTH_, NULL, &wps_ielen))
528 return true;
529 else
530 return false;
531 }
532 if (adapter->registrypriv.wifi_spec == 1) { /* for correct flow of 8021X to do.... */
533 if ((desired_encmode == Ndis802_11EncryptionDisabled) && (privacy != 0))
534 bselected = false;
535 }
536
537
538 if ((desired_encmode != Ndis802_11EncryptionDisabled) && (privacy == 0)) {
539 DBG_88E("desired_encmode: %d, privacy: %d\n", desired_encmode, privacy);
540 bselected = false;
541 }
542
543 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) {
544 if (pnetwork->network.InfrastructureMode != pmlmepriv->cur_network.network.InfrastructureMode)
545 bselected = false;
546 }
547
548 return bselected;
549 }
550
551 /* TODO: Perry: For Power Management */
552 void rtw_atimdone_event_callback(struct adapter *adapter, u8 *pbuf)
553 {
554 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("receive atimdone_evet\n"));
555 }
556
557 void rtw_survey_event_callback(struct adapter *adapter, u8 *pbuf)
558 {
559 u32 len;
560 struct wlan_bssid_ex *pnetwork;
561 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
562
563 pnetwork = (struct wlan_bssid_ex *)pbuf;
564
565 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_survey_event_callback, ssid=%s\n", pnetwork->Ssid.Ssid));
566
567 len = get_wlan_bssid_ex_sz(pnetwork);
568 if (len > (sizeof(struct wlan_bssid_ex))) {
569 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n****rtw_survey_event_callback: return a wrong bss ***\n"));
570 return;
571 }
572 spin_lock_bh(&pmlmepriv->lock);
573
574 /* update IBSS_network 's timestamp */
575 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) == true) {
576 if (!memcmp(&(pmlmepriv->cur_network.network.MacAddress), pnetwork->MacAddress, ETH_ALEN)) {
577 struct wlan_network *ibss_wlan = NULL;
578
579 memcpy(pmlmepriv->cur_network.network.IEs, pnetwork->IEs, 8);
580 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
581 ibss_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->MacAddress);
582 if (ibss_wlan) {
583 memcpy(ibss_wlan->network.IEs, pnetwork->IEs, 8);
584 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
585 goto exit;
586 }
587 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
588 }
589 }
590
591 /* lock pmlmepriv->lock when you accessing network_q */
592 if ((check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) == false) {
593 if (pnetwork->Ssid.Ssid[0] == 0)
594 pnetwork->Ssid.SsidLength = 0;
595 rtw_add_network(adapter, pnetwork);
596 }
597
598 exit:
599
600 spin_unlock_bh(&pmlmepriv->lock);
601 return;
602 }
603
604 void rtw_surveydone_event_callback(struct adapter *adapter, u8 *pbuf)
605 {
606 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
607
608 spin_lock_bh(&pmlmepriv->lock);
609
610 if (pmlmepriv->wps_probe_req_ie) {
611 pmlmepriv->wps_probe_req_ie_len = 0;
612 kfree(pmlmepriv->wps_probe_req_ie);
613 pmlmepriv->wps_probe_req_ie = NULL;
614 }
615
616 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_surveydone_event_callback: fw_state:%x\n\n", get_fwstate(pmlmepriv)));
617
618 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
619 del_timer_sync(&pmlmepriv->scan_to_timer);
620 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
621 } else {
622 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("nic status=%x, survey done event comes too late!\n", get_fwstate(pmlmepriv)));
623 }
624
625 rtw_set_signal_stat_timer(&adapter->recvpriv);
626
627 if (pmlmepriv->to_join) {
628 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true)) {
629 if (check_fwstate(pmlmepriv, _FW_LINKED) == false) {
630 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
631
632 if (rtw_select_and_join_from_scanned_queue(pmlmepriv) == _SUCCESS) {
633 mod_timer(&pmlmepriv->assoc_timer,
634 jiffies + msecs_to_jiffies(MAX_JOIN_TIMEOUT));
635 } else {
636 struct wlan_bssid_ex *pdev_network = &(adapter->registrypriv.dev_network);
637 u8 *pibss = adapter->registrypriv.dev_network.MacAddress;
638
639 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
640
641 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("switching to adhoc master\n"));
642
643 memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
644
645 rtw_update_registrypriv_dev_network(adapter);
646 rtw_generate_random_ibss(pibss);
647
648 pmlmepriv->fw_state = WIFI_ADHOC_MASTER_STATE;
649
650 if (rtw_createbss_cmd(adapter) != _SUCCESS)
651 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Error=>rtw_createbss_cmd status FAIL\n"));
652 pmlmepriv->to_join = false;
653 }
654 }
655 } else {
656 int s_ret;
657
658 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
659 pmlmepriv->to_join = false;
660 s_ret = rtw_select_and_join_from_scanned_queue(pmlmepriv);
661 if (s_ret == _SUCCESS) {
662 mod_timer(&pmlmepriv->assoc_timer,
663 jiffies + msecs_to_jiffies(MAX_JOIN_TIMEOUT));
664 } else if (s_ret == 2) { /* there is no need to wait for join */
665 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
666 rtw_indicate_connect(adapter);
667 } else {
668 DBG_88E("try_to_join, but select scanning queue fail, to_roaming:%d\n", pmlmepriv->to_roaming);
669 if (pmlmepriv->to_roaming != 0) {
670 if (--pmlmepriv->to_roaming == 0 ||
671 rtw_sitesurvey_cmd(adapter, &pmlmepriv->assoc_ssid, 1, NULL, 0) != _SUCCESS) {
672 pmlmepriv->to_roaming = 0;
673 rtw_free_assoc_resources(adapter);
674 rtw_indicate_disconnect(adapter);
675 } else {
676 pmlmepriv->to_join = true;
677 }
678 }
679 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
680 }
681 }
682 }
683
684 indicate_wx_scan_complete_event(adapter);
685
686 spin_unlock_bh(&pmlmepriv->lock);
687
688 rtw_os_xmit_schedule(adapter);
689 }
690
691 void rtw_dummy_event_callback(struct adapter *adapter, u8 *pbuf)
692 {
693 }
694
695 void rtw_fwdbg_event_callback(struct adapter *adapter, u8 *pbuf)
696 {
697 }
698
699 static void free_scanqueue(struct mlme_priv *pmlmepriv)
700 {
701 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
702 struct __queue *scan_queue = &pmlmepriv->scanned_queue;
703 struct list_head *plist, *phead, *ptemp;
704
705 RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, ("+free_scanqueue\n"));
706 spin_lock_bh(&scan_queue->lock);
707 spin_lock_bh(&free_queue->lock);
708
709 phead = get_list_head(scan_queue);
710 plist = phead->next;
711
712 while (plist != phead) {
713 ptemp = plist->next;
714 list_del_init(plist);
715 list_add_tail(plist, &free_queue->queue);
716 plist = ptemp;
717 }
718
719 spin_unlock_bh(&free_queue->lock);
720 spin_unlock_bh(&scan_queue->lock);
721 }
722
723 /*
724 * rtw_free_assoc_resources: the caller has to lock pmlmepriv->lock
725 */
726 void rtw_free_assoc_resources(struct adapter *adapter)
727 {
728 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
729
730 spin_lock_bh(&pmlmepriv->scanned_queue.lock);
731 rtw_free_assoc_resources_locked(adapter);
732 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
733 }
734
735 /*
736 * rtw_free_assoc_resources_locked: the caller has to lock pmlmepriv->lock
737 */
738 void rtw_free_assoc_resources_locked(struct adapter *adapter)
739 {
740 struct wlan_network *pwlan = NULL;
741 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
742 struct sta_priv *pstapriv = &adapter->stapriv;
743 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
744
745 RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, ("+rtw_free_assoc_resources\n"));
746 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
747 ("tgt_network->network.MacAddress=%pM ssid=%s\n",
748 tgt_network->network.MacAddress, tgt_network->network.Ssid.Ssid));
749
750 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE)) {
751 struct sta_info *psta;
752
753 psta = rtw_get_stainfo(&adapter->stapriv, tgt_network->network.MacAddress);
754
755 spin_lock_bh(&(pstapriv->sta_hash_lock));
756 rtw_free_stainfo(adapter, psta);
757 spin_unlock_bh(&pstapriv->sta_hash_lock);
758 }
759
760 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE | WIFI_AP_STATE)) {
761 struct sta_info *psta;
762
763 rtw_free_all_stainfo(adapter);
764
765 psta = rtw_get_bcmc_stainfo(adapter);
766 spin_lock_bh(&(pstapriv->sta_hash_lock));
767 rtw_free_stainfo(adapter, psta);
768 spin_unlock_bh(&pstapriv->sta_hash_lock);
769
770 rtw_init_bcmc_stainfo(adapter);
771 }
772
773
774 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
775 if (pwlan)
776 pwlan->fixed = false;
777 else
778 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_free_assoc_resources:pwlan==NULL\n\n"));
779
780 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) && (adapter->stapriv.asoc_sta_count == 1)))
781 rtw_free_network_nolock(pmlmepriv, pwlan);
782
783 pmlmepriv->key_mask = 0;
784 }
785
786 /*
787 * rtw_indicate_connect: the caller has to lock pmlmepriv->lock
788 */
789 void rtw_indicate_connect(struct adapter *padapter)
790 {
791 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
792
793 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+%s\n", __func__));
794
795 pmlmepriv->to_join = false;
796
797 if (!check_fwstate(&padapter->mlmepriv, _FW_LINKED)) {
798 set_fwstate(pmlmepriv, _FW_LINKED);
799
800 LedControl8188eu(padapter, LED_CTL_LINK);
801
802 rtw_os_indicate_connect(padapter);
803 }
804
805 pmlmepriv->to_roaming = 0;
806
807 rtw_set_scan_deny(padapter, 3000);
808
809 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("-%s: fw_state=0x%08x\n", __func__, get_fwstate(pmlmepriv)));
810 }
811
812 /*
813 * rtw_indicate_disconnect: the caller has to lock pmlmepriv->lock
814 */
815 void rtw_indicate_disconnect(struct adapter *padapter)
816 {
817 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
818
819 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_indicate_disconnect\n"));
820
821 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING | WIFI_UNDER_WPS);
822
823 if (pmlmepriv->to_roaming > 0)
824 _clr_fwstate_(pmlmepriv, _FW_LINKED);
825
826 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) ||
827 (pmlmepriv->to_roaming <= 0)) {
828 rtw_os_indicate_disconnect(padapter);
829
830 _clr_fwstate_(pmlmepriv, _FW_LINKED);
831 LedControl8188eu(padapter, LED_CTL_NO_LINK);
832 rtw_clear_scan_deny(padapter);
833 }
834
835 rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_DISCONNECT, 1);
836 }
837
838 inline void rtw_indicate_scan_done(struct adapter *padapter, bool aborted)
839 {
840 rtw_os_indicate_scan_done(padapter, aborted);
841 }
842
843 void rtw_scan_abort(struct adapter *adapter)
844 {
845 unsigned long start;
846 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
847 struct mlme_ext_priv *pmlmeext = &(adapter->mlmeextpriv);
848
849 start = jiffies;
850 pmlmeext->scan_abort = true;
851 while (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY) &&
852 jiffies_to_msecs(jiffies - start) <= 200) {
853 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
854 break;
855 DBG_88E(FUNC_NDEV_FMT"fw_state=_FW_UNDER_SURVEY!\n", FUNC_NDEV_ARG(adapter->pnetdev));
856 msleep(20);
857 }
858 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
859 if (!adapter->bDriverStopped && !adapter->bSurpriseRemoved)
860 DBG_88E(FUNC_NDEV_FMT"waiting for scan_abort time out!\n", FUNC_NDEV_ARG(adapter->pnetdev));
861 rtw_indicate_scan_done(adapter, true);
862 }
863 pmlmeext->scan_abort = false;
864 }
865
866 static struct sta_info *rtw_joinbss_update_stainfo(struct adapter *padapter, struct wlan_network *pnetwork)
867 {
868 int i;
869 struct sta_info *bmc_sta, *psta = NULL;
870 struct recv_reorder_ctrl *preorder_ctrl;
871 struct sta_priv *pstapriv = &padapter->stapriv;
872
873 psta = rtw_get_stainfo(pstapriv, pnetwork->network.MacAddress);
874 if (!psta)
875 psta = rtw_alloc_stainfo(pstapriv, pnetwork->network.MacAddress);
876
877 if (psta) { /* update ptarget_sta */
878 DBG_88E("%s\n", __func__);
879 psta->aid = pnetwork->join_res;
880 psta->mac_id = 0;
881 /* sta mode */
882 rtw_hal_set_odm_var(padapter, HAL_ODM_STA_INFO, psta, true);
883 /* security related */
884 if (padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
885 padapter->securitypriv.binstallGrpkey = false;
886 padapter->securitypriv.busetkipkey = false;
887 padapter->securitypriv.bgrpkey_handshake = false;
888 psta->ieee8021x_blocked = true;
889 psta->dot118021XPrivacy = padapter->securitypriv.dot11PrivacyAlgrthm;
890 memset((u8 *)&psta->dot118021x_UncstKey, 0, sizeof(union Keytype));
891 memset((u8 *)&psta->dot11tkiprxmickey, 0, sizeof(union Keytype));
892 memset((u8 *)&psta->dot11tkiptxmickey, 0, sizeof(union Keytype));
893 memset((u8 *)&psta->dot11txpn, 0, sizeof(union pn48));
894 memset((u8 *)&psta->dot11rxpn, 0, sizeof(union pn48));
895 }
896 /*
897 * Commented by Albert 2012/07/21
898 * When doing the WPS, the wps_ie_len won't equal to 0
899 * And the Wi-Fi driver shouldn't allow the data
900 * packet to be transmitted.
901 */
902 if (padapter->securitypriv.wps_ie_len != 0) {
903 psta->ieee8021x_blocked = true;
904 padapter->securitypriv.wps_ie_len = 0;
905 }
906 /* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info */
907 /* if A-MPDU Rx is enabled, resetting rx_ordering_ctrl wstart_b(indicate_seq) to default value = 0xffff */
908 /* todo: check if AP can send A-MPDU packets */
909 for (i = 0; i < 16; i++) {
910 /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
911 preorder_ctrl = &psta->recvreorder_ctrl[i];
912 preorder_ctrl->enable = false;
913 preorder_ctrl->indicate_seq = 0xffff;
914 preorder_ctrl->wend_b = 0xffff;
915 preorder_ctrl->wsize_b = 64;/* max_ampdu_sz; ex. 32(kbytes) -> wsize_b = 32 */
916 }
917 bmc_sta = rtw_get_bcmc_stainfo(padapter);
918 if (bmc_sta) {
919 for (i = 0; i < 16; i++) {
920 /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
921 preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
922 preorder_ctrl->enable = false;
923 preorder_ctrl->indicate_seq = 0xffff;
924 preorder_ctrl->wend_b = 0xffff;
925 preorder_ctrl->wsize_b = 64;/* max_ampdu_sz; ex. 32(kbytes) -> wsize_b = 32 */
926 }
927 }
928 /* misc. */
929 update_sta_info(padapter, psta);
930 }
931 return psta;
932 }
933
934 /* pnetwork: returns from rtw_joinbss_event_callback */
935 /* ptarget_wlan: found from scanned_queue */
936 static void rtw_joinbss_update_network(struct adapter *padapter, struct wlan_network *ptarget_wlan, struct wlan_network *pnetwork)
937 {
938 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
939 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
940
941 DBG_88E("%s\n", __func__);
942
943 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
944 ("\nfw_state:%x, BSSID:%pM\n",
945 get_fwstate(pmlmepriv), pnetwork->network.MacAddress));
946
947
948 /* why not use ptarget_wlan?? */
949 memcpy(&cur_network->network, &pnetwork->network, pnetwork->network.Length);
950 /* some IEs in pnetwork is wrong, so we should use ptarget_wlan IEs */
951 cur_network->network.IELength = ptarget_wlan->network.IELength;
952 memcpy(&cur_network->network.IEs[0], &ptarget_wlan->network.IEs[0], MAX_IE_SZ);
953
954 cur_network->aid = pnetwork->join_res;
955
956 rtw_set_signal_stat_timer(&padapter->recvpriv);
957 padapter->recvpriv.signal_strength = ptarget_wlan->network.PhyInfo.SignalStrength;
958 padapter->recvpriv.signal_qual = ptarget_wlan->network.PhyInfo.SignalQuality;
959 /* the ptarget_wlan->network.Rssi is raw data, we use ptarget_wlan->network.PhyInfo.SignalStrength instead (has scaled) */
960 padapter->recvpriv.rssi = translate_percentage_to_dbm(ptarget_wlan->network.PhyInfo.SignalStrength);
961 rtw_set_signal_stat_timer(&padapter->recvpriv);
962
963 /* update fw_state will clr _FW_UNDER_LINKING here indirectly */
964 switch (pnetwork->network.InfrastructureMode) {
965 case Ndis802_11Infrastructure:
966 if (pmlmepriv->fw_state&WIFI_UNDER_WPS)
967 pmlmepriv->fw_state = WIFI_STATION_STATE|WIFI_UNDER_WPS;
968 else
969 pmlmepriv->fw_state = WIFI_STATION_STATE;
970 break;
971 case Ndis802_11IBSS:
972 pmlmepriv->fw_state = WIFI_ADHOC_STATE;
973 break;
974 default:
975 pmlmepriv->fw_state = WIFI_NULL_STATE;
976 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Invalid network_mode\n"));
977 break;
978 }
979
980 rtw_update_protection(padapter, (cur_network->network.IEs) +
981 sizeof(struct ndis_802_11_fixed_ie),
982 (cur_network->network.IELength));
983 rtw_update_ht_cap(padapter, cur_network->network.IEs, cur_network->network.IELength);
984 }
985
986 /* Notes: the function could be > passive_level (the same context as Rx tasklet) */
987 /* pnetwork: returns from rtw_joinbss_event_callback */
988 /* ptarget_wlan: found from scanned_queue */
989 /* if join_res > 0, for (fw_state == WIFI_STATION_STATE), we check if "ptarget_sta" & "ptarget_wlan" exist. */
990 /* if join_res > 0, for (fw_state == WIFI_ADHOC_STATE), we only check if "ptarget_wlan" exist. */
991 /* if join_res > 0, update "cur_network->network" from "pnetwork->network" if (ptarget_wlan != NULL). */
992
993 void rtw_joinbss_event_prehandle(struct adapter *adapter, u8 *pbuf)
994 {
995 struct sta_info *ptarget_sta = NULL, *pcur_sta = NULL;
996 struct sta_priv *pstapriv = &adapter->stapriv;
997 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
998 struct wlan_network *pnetwork = (struct wlan_network *)pbuf;
999 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
1000 struct wlan_network *pcur_wlan = NULL, *ptarget_wlan = NULL;
1001 unsigned int the_same_macaddr = false;
1002
1003 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("joinbss event call back received with res=%d\n", pnetwork->join_res));
1004
1005 rtw_get_encrypt_decrypt_from_registrypriv(adapter);
1006
1007 if (pmlmepriv->assoc_ssid.SsidLength == 0)
1008 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("@@@@@ joinbss event call back for Any SSid\n"));
1009 else
1010 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("@@@@@ rtw_joinbss_event_callback for SSid:%s\n", pmlmepriv->assoc_ssid.Ssid));
1011
1012 the_same_macaddr = !memcmp(pnetwork->network.MacAddress, cur_network->network.MacAddress, ETH_ALEN);
1013
1014 pnetwork->network.Length = get_wlan_bssid_ex_sz(&pnetwork->network);
1015 if (pnetwork->network.Length > sizeof(struct wlan_bssid_ex)) {
1016 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n\n ***joinbss_evt_callback return a wrong bss ***\n\n"));
1017 return;
1018 }
1019
1020 spin_lock_bh(&pmlmepriv->lock);
1021
1022 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\nrtw_joinbss_event_callback!! _enter_critical\n"));
1023
1024 if (pnetwork->join_res > 0) {
1025 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1026 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
1027 /* s1. find ptarget_wlan */
1028 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1029 if (the_same_macaddr) {
1030 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1031 } else {
1032 pcur_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1033 if (pcur_wlan)
1034 pcur_wlan->fixed = false;
1035
1036 pcur_sta = rtw_get_stainfo(pstapriv, cur_network->network.MacAddress);
1037 if (pcur_sta) {
1038 spin_lock_bh(&(pstapriv->sta_hash_lock));
1039 rtw_free_stainfo(adapter, pcur_sta);
1040 spin_unlock_bh(&pstapriv->sta_hash_lock);
1041 }
1042
1043 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->network.MacAddress);
1044 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1045 if (ptarget_wlan)
1046 ptarget_wlan->fixed = true;
1047 }
1048 }
1049 } else {
1050 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->network.MacAddress);
1051 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1052 if (ptarget_wlan)
1053 ptarget_wlan->fixed = true;
1054 }
1055 }
1056
1057 /* s2. update cur_network */
1058 if (ptarget_wlan) {
1059 rtw_joinbss_update_network(adapter, ptarget_wlan, pnetwork);
1060 } else {
1061 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't find ptarget_wlan when joinbss_event callback\n"));
1062 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1063 goto ignore_joinbss_callback;
1064 }
1065
1066 /* s3. find ptarget_sta & update ptarget_sta after update cur_network only for station mode */
1067 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1068 ptarget_sta = rtw_joinbss_update_stainfo(adapter, pnetwork);
1069 if (!ptarget_sta) {
1070 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't update stainfo when joinbss_event callback\n"));
1071 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1072 goto ignore_joinbss_callback;
1073 }
1074 }
1075
1076 /* s4. indicate connect */
1077 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1078 rtw_indicate_connect(adapter);
1079 } else {
1080 /* adhoc mode will rtw_indicate_connect when rtw_stassoc_event_callback */
1081 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("adhoc mode, fw_state:%x", get_fwstate(pmlmepriv)));
1082 }
1083
1084 /* s5. Cancel assoc_timer */
1085 del_timer_sync(&pmlmepriv->assoc_timer);
1086
1087 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("Cancel assoc_timer\n"));
1088
1089 } else {
1090 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_joinbss_event_callback err: fw_state:%x", get_fwstate(pmlmepriv)));
1091 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1092 goto ignore_joinbss_callback;
1093 }
1094
1095 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1096
1097 } else if (pnetwork->join_res == -4) {
1098 rtw_reset_securitypriv(adapter);
1099 mod_timer(&pmlmepriv->assoc_timer,
1100 jiffies + msecs_to_jiffies(1));
1101
1102 if ((check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) == true) {
1103 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("fail! clear _FW_UNDER_LINKING ^^^fw_state=%x\n", get_fwstate(pmlmepriv)));
1104 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1105 }
1106 } else { /* if join_res < 0 (join fails), then try again */
1107 mod_timer(&pmlmepriv->assoc_timer,
1108 jiffies + msecs_to_jiffies(1));
1109 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1110 }
1111
1112 ignore_joinbss_callback:
1113 spin_unlock_bh(&pmlmepriv->lock);
1114 }
1115
1116 void rtw_joinbss_event_callback(struct adapter *adapter, u8 *pbuf)
1117 {
1118 struct wlan_network *pnetwork = (struct wlan_network *)pbuf;
1119
1120 mlmeext_joinbss_event_callback(adapter, pnetwork->join_res);
1121
1122 rtw_os_xmit_schedule(adapter);
1123 }
1124
1125 static u8 search_max_mac_id(struct adapter *padapter)
1126 {
1127 u8 mac_id;
1128 #if defined(CONFIG_88EU_AP_MODE)
1129 u8 aid;
1130 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
1131 struct sta_priv *pstapriv = &padapter->stapriv;
1132 #endif
1133 struct mlme_ext_priv *pmlmeext = &(padapter->mlmeextpriv);
1134 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1135
1136 #if defined(CONFIG_88EU_AP_MODE)
1137 if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
1138 for (aid = pstapriv->max_num_sta; aid > 0; aid--) {
1139 if (pstapriv->sta_aid[aid-1])
1140 break;
1141 }
1142 mac_id = aid + 1;
1143 } else
1144 #endif
1145 {/* adhoc id = 31~2 */
1146 for (mac_id = NUM_STA-1; mac_id >= IBSS_START_MAC_ID; mac_id--) {
1147 if (pmlmeinfo->FW_sta_info[mac_id].status == 1)
1148 break;
1149 }
1150 }
1151 return mac_id;
1152 }
1153
1154 /* FOR AP , AD-HOC mode */
1155 void rtw_stassoc_hw_rpt(struct adapter *adapter, struct sta_info *psta)
1156 {
1157 u16 media_status;
1158 u8 macid;
1159
1160 if (!psta)
1161 return;
1162
1163 macid = search_max_mac_id(adapter);
1164 rtw_hal_set_hwreg(adapter, HW_VAR_TX_RPT_MAX_MACID, (u8 *)&macid);
1165 media_status = (psta->mac_id<<8)|1; /* MACID|OPMODE:1 connect */
1166 rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status);
1167 }
1168
1169 void rtw_stassoc_event_callback(struct adapter *adapter, u8 *pbuf)
1170 {
1171 struct sta_info *psta;
1172 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1173 struct stassoc_event *pstassoc = (struct stassoc_event *)pbuf;
1174 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
1175 struct wlan_network *ptarget_wlan = NULL;
1176
1177 if (rtw_access_ctrl(adapter, pstassoc->macaddr) == false)
1178 return;
1179
1180 #if defined(CONFIG_88EU_AP_MODE)
1181 if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
1182 psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1183 if (psta) {
1184 ap_sta_info_defer_update(adapter, psta);
1185 rtw_stassoc_hw_rpt(adapter, psta);
1186 }
1187 return;
1188 }
1189 #endif
1190 /* for AD-HOC mode */
1191 psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1192 if (psta) {
1193 /* the sta have been in sta_info_queue => do nothing */
1194 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Error: rtw_stassoc_event_callback: sta has been in sta_hash_queue\n"));
1195 return; /* between drv has received this event before and fw have not yet to set key to CAM_ENTRY) */
1196 }
1197 psta = rtw_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
1198 if (!psta) {
1199 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't alloc sta_info when rtw_stassoc_event_callback\n"));
1200 return;
1201 }
1202 /* to do: init sta_info variable */
1203 psta->qos_option = 0;
1204 psta->mac_id = (uint)pstassoc->cam_id;
1205 DBG_88E("%s\n", __func__);
1206 /* for ad-hoc mode */
1207 rtw_hal_set_odm_var(adapter, HAL_ODM_STA_INFO, psta, true);
1208 rtw_stassoc_hw_rpt(adapter, psta);
1209 if (adapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X)
1210 psta->dot118021XPrivacy = adapter->securitypriv.dot11PrivacyAlgrthm;
1211 psta->ieee8021x_blocked = false;
1212 spin_lock_bh(&pmlmepriv->lock);
1213 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) ||
1214 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE))) {
1215 if (adapter->stapriv.asoc_sta_count == 2) {
1216 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1217 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1218 if (ptarget_wlan)
1219 ptarget_wlan->fixed = true;
1220 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1221 /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
1222 rtw_indicate_connect(adapter);
1223 }
1224 }
1225 spin_unlock_bh(&pmlmepriv->lock);
1226 mlmeext_sta_add_event_callback(adapter, psta);
1227 }
1228
1229 void rtw_stadel_event_callback(struct adapter *adapter, u8 *pbuf)
1230 {
1231 int mac_id = -1;
1232 struct sta_info *psta;
1233 struct wlan_network *pwlan = NULL;
1234 struct wlan_bssid_ex *pdev_network = NULL;
1235 u8 *pibss = NULL;
1236 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1237 struct stadel_event *pstadel = (struct stadel_event *)pbuf;
1238 struct sta_priv *pstapriv = &adapter->stapriv;
1239 struct wlan_network *tgt_network = &(pmlmepriv->cur_network);
1240
1241 psta = rtw_get_stainfo(&adapter->stapriv, pstadel->macaddr);
1242 if (psta)
1243 mac_id = psta->mac_id;
1244 else
1245 mac_id = pstadel->mac_id;
1246
1247 DBG_88E("%s(mac_id=%d)=%pM\n", __func__, mac_id, pstadel->macaddr);
1248
1249 if (mac_id >= 0) {
1250 u16 media_status;
1251
1252 media_status = (mac_id<<8)|0; /* MACID|OPMODE:0 means disconnect */
1253 /* for STA, AP, ADHOC mode, report disconnect stauts to FW */
1254 rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status);
1255 }
1256
1257 if (check_fwstate(pmlmepriv, WIFI_AP_STATE))
1258 return;
1259
1260 mlmeext_sta_del_event_callback(adapter);
1261
1262 spin_lock_bh(&pmlmepriv->lock);
1263
1264 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
1265 if (pmlmepriv->to_roaming > 0)
1266 pmlmepriv->to_roaming--; /* this stadel_event is caused by roaming, decrease to_roaming */
1267 else if (pmlmepriv->to_roaming == 0)
1268 pmlmepriv->to_roaming = adapter->registrypriv.max_roaming_times;
1269
1270 if (*((unsigned short *)(pstadel->rsvd)) != WLAN_REASON_EXPIRATION_CHK)
1271 pmlmepriv->to_roaming = 0; /* don't roam */
1272
1273 rtw_free_uc_swdec_pending_queue(adapter);
1274
1275 rtw_free_assoc_resources(adapter);
1276 rtw_indicate_disconnect(adapter);
1277 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1278 /* remove the network entry in scanned_queue */
1279 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
1280 if (pwlan) {
1281 pwlan->fixed = false;
1282 rtw_free_network_nolock(pmlmepriv, pwlan);
1283 }
1284 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1285 _rtw_roaming(adapter, tgt_network);
1286 }
1287 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
1288 check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1289 spin_lock_bh(&(pstapriv->sta_hash_lock));
1290 rtw_free_stainfo(adapter, psta);
1291 spin_unlock_bh(&pstapriv->sta_hash_lock);
1292
1293 if (adapter->stapriv.asoc_sta_count == 1) { /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
1294 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1295 /* free old ibss network */
1296 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
1297 if (pwlan) {
1298 pwlan->fixed = false;
1299 rtw_free_network_nolock(pmlmepriv, pwlan);
1300 }
1301 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1302 /* re-create ibss */
1303 pdev_network = &(adapter->registrypriv.dev_network);
1304 pibss = adapter->registrypriv.dev_network.MacAddress;
1305
1306 memcpy(pdev_network, &tgt_network->network, get_wlan_bssid_ex_sz(&tgt_network->network));
1307
1308 memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
1309
1310 rtw_update_registrypriv_dev_network(adapter);
1311
1312 rtw_generate_random_ibss(pibss);
1313
1314 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1315 set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
1316 _clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
1317 }
1318
1319 if (rtw_createbss_cmd(adapter) != _SUCCESS)
1320 RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_err_, ("***Error=>stadel_event_callback: rtw_createbss_cmd status FAIL***\n "));
1321 }
1322 }
1323 spin_unlock_bh(&pmlmepriv->lock);
1324 }
1325
1326 void rtw_cpwm_event_callback(struct adapter *padapter, u8 *pbuf)
1327 {
1328 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_cpwm_event_callback !!!\n"));
1329 }
1330
1331 /*
1332 * _rtw_join_timeout_handler - Timeout/failure handler for CMD JoinBss
1333 * @adapter: pointer to struct adapter structure
1334 */
1335 void _rtw_join_timeout_handler (struct timer_list *t)
1336 {
1337 struct adapter *adapter =
1338 from_timer(adapter, t, mlmepriv.assoc_timer);
1339 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1340 int do_join_r;
1341
1342 DBG_88E("%s, fw_state=%x\n", __func__, get_fwstate(pmlmepriv));
1343
1344 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1345 return;
1346
1347 spin_lock_bh(&pmlmepriv->lock);
1348
1349 if (pmlmepriv->to_roaming > 0) { /* join timeout caused by roaming */
1350 while (1) {
1351 pmlmepriv->to_roaming--;
1352 if (pmlmepriv->to_roaming != 0) { /* try another , */
1353 DBG_88E("%s try another roaming\n", __func__);
1354 do_join_r = rtw_do_join(adapter);
1355 if (do_join_r != _SUCCESS) {
1356 DBG_88E("%s roaming do_join return %d\n", __func__, do_join_r);
1357 continue;
1358 }
1359 break;
1360 } else {
1361 DBG_88E("%s We've try roaming but fail\n", __func__);
1362 rtw_indicate_disconnect(adapter);
1363 break;
1364 }
1365 }
1366 } else {
1367 rtw_indicate_disconnect(adapter);
1368 free_scanqueue(pmlmepriv);/* */
1369 }
1370 spin_unlock_bh(&pmlmepriv->lock);
1371 }
1372
1373 /*
1374 * rtw_scan_timeout_handler - Timeout/Failure handler for CMD SiteSurvey
1375 * @adapter: pointer to struct adapter structure
1376 */
1377 void rtw_scan_timeout_handler (struct timer_list *t)
1378 {
1379 struct adapter *adapter =
1380 from_timer(adapter, t, mlmepriv.scan_to_timer);
1381 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1382
1383 DBG_88E(FUNC_ADPT_FMT" fw_state=%x\n", FUNC_ADPT_ARG(adapter), get_fwstate(pmlmepriv));
1384 spin_lock_bh(&pmlmepriv->lock);
1385 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
1386 spin_unlock_bh(&pmlmepriv->lock);
1387 rtw_indicate_scan_done(adapter, true);
1388 }
1389
1390 static void rtw_auto_scan_handler(struct adapter *padapter)
1391 {
1392 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1393
1394 /* auto site survey per 60sec */
1395 if (pmlmepriv->scan_interval > 0) {
1396 pmlmepriv->scan_interval--;
1397 if (pmlmepriv->scan_interval == 0) {
1398 DBG_88E("%s\n", __func__);
1399 rtw_set_802_11_bssid_list_scan(padapter, NULL, 0);
1400 pmlmepriv->scan_interval = SCAN_INTERVAL;/* 30*2 sec = 60sec */
1401 }
1402 }
1403 }
1404
1405 void rtw_dynamic_check_timer_handlder(struct timer_list *t)
1406 {
1407 struct adapter *adapter =
1408 from_timer(adapter, t, mlmepriv.dynamic_chk_timer);
1409 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1410
1411 if (!adapter)
1412 return;
1413 if (!adapter->hw_init_completed)
1414 goto exit;
1415 if ((adapter->bDriverStopped) || (adapter->bSurpriseRemoved))
1416 goto exit;
1417 if (adapter->net_closed)
1418 goto exit;
1419 rtw_dynamic_chk_wk_cmd(adapter);
1420
1421 if (pregistrypriv->wifi_spec == 1) {
1422 /* auto site survey */
1423 rtw_auto_scan_handler(adapter);
1424 }
1425 exit:
1426 mod_timer(&adapter->mlmepriv.dynamic_chk_timer,
1427 jiffies + msecs_to_jiffies(2000));
1428 }
1429
1430 #define RTW_SCAN_RESULT_EXPIRE 2000
1431
1432 /*
1433 * Select a new join candidate from the original @param candidate and @param competitor
1434 * @return true: candidate is updated
1435 * @return false: candidate is not updated
1436 */
1437 static int rtw_check_join_candidate(struct mlme_priv *pmlmepriv
1438 , struct wlan_network **candidate, struct wlan_network *competitor)
1439 {
1440 int updated = false;
1441 unsigned long since_scan;
1442 struct adapter *adapter = container_of(pmlmepriv, struct adapter, mlmepriv);
1443
1444 /* check bssid, if needed */
1445 if (pmlmepriv->assoc_by_bssid) {
1446 if (memcmp(competitor->network.MacAddress, pmlmepriv->assoc_bssid, ETH_ALEN))
1447 goto exit;
1448 }
1449
1450 /* check ssid, if needed */
1451 if (pmlmepriv->assoc_ssid.SsidLength) {
1452 if (competitor->network.Ssid.SsidLength != pmlmepriv->assoc_ssid.SsidLength ||
1453 !memcmp(competitor->network.Ssid.Ssid, pmlmepriv->assoc_ssid.Ssid, pmlmepriv->assoc_ssid.SsidLength) == false)
1454 goto exit;
1455 }
1456
1457 if (rtw_is_desired_network(adapter, competitor) == false)
1458 goto exit;
1459
1460 if (pmlmepriv->to_roaming) {
1461 since_scan = jiffies - competitor->last_scanned;
1462 if (jiffies_to_msecs(since_scan) >= RTW_SCAN_RESULT_EXPIRE ||
1463 is_same_ess(&competitor->network, &pmlmepriv->cur_network.network) == false)
1464 goto exit;
1465 }
1466
1467 if (*candidate == NULL || (*candidate)->network.Rssi < competitor->network.Rssi) {
1468 *candidate = competitor;
1469 updated = true;
1470 }
1471 if (updated) {
1472 DBG_88E("[by_bssid:%u][assoc_ssid:%s]new candidate: %s(%pM rssi:%d\n",
1473 pmlmepriv->assoc_by_bssid,
1474 pmlmepriv->assoc_ssid.Ssid,
1475 (*candidate)->network.Ssid.Ssid,
1476 (*candidate)->network.MacAddress,
1477 (int)(*candidate)->network.Rssi);
1478 DBG_88E("[to_roaming:%u]\n", pmlmepriv->to_roaming);
1479 }
1480
1481 exit:
1482 return updated;
1483 }
1484
1485 /*
1486 * Calling context:
1487 * The caller of the sub-routine will be in critical section...
1488 * The caller must hold the following spinlock
1489 * pmlmepriv->lock
1490 */
1491
1492 int rtw_select_and_join_from_scanned_queue(struct mlme_priv *pmlmepriv)
1493 {
1494 int ret;
1495 struct list_head *phead;
1496 struct adapter *adapter;
1497 struct __queue *queue = &(pmlmepriv->scanned_queue);
1498 struct wlan_network *pnetwork = NULL;
1499 struct wlan_network *candidate = NULL;
1500 u8 supp_ant_div = false;
1501
1502 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1503 phead = get_list_head(queue);
1504 adapter = (struct adapter *)pmlmepriv->nic_hdl;
1505 pmlmepriv->pscanned = phead->next;
1506 while (phead != pmlmepriv->pscanned) {
1507 pnetwork = container_of(pmlmepriv->pscanned, struct wlan_network, list);
1508 if (!pnetwork) {
1509 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s return _FAIL:(pnetwork==NULL)\n", __func__));
1510 ret = _FAIL;
1511 goto exit;
1512 }
1513 pmlmepriv->pscanned = pmlmepriv->pscanned->next;
1514 rtw_check_join_candidate(pmlmepriv, &candidate, pnetwork);
1515 }
1516 if (!candidate) {
1517 DBG_88E("%s: return _FAIL(candidate==NULL)\n", __func__);
1518 ret = _FAIL;
1519 goto exit;
1520 } else {
1521 DBG_88E("%s: candidate: %s(%pM ch:%u)\n", __func__,
1522 candidate->network.Ssid.Ssid, candidate->network.MacAddress,
1523 candidate->network.Configuration.DSConfig);
1524 }
1525
1526 /* check for situation of _FW_LINKED */
1527 if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
1528 DBG_88E("%s: _FW_LINKED while ask_for_joinbss!!!\n", __func__);
1529
1530 rtw_disassoc_cmd(adapter, 0, true);
1531 rtw_indicate_disconnect(adapter);
1532 rtw_free_assoc_resources_locked(adapter);
1533 }
1534
1535 rtw_hal_get_def_var(adapter, HAL_DEF_IS_SUPPORT_ANT_DIV, &(supp_ant_div));
1536 if (supp_ant_div) {
1537 u8 cur_ant;
1538
1539 rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(cur_ant));
1540 DBG_88E("#### Opt_Ant_(%s), cur_Ant(%s)\n",
1541 (candidate->network.PhyInfo.Optimum_antenna == 2) ? "A" : "B",
1542 (cur_ant == 2) ? "A" : "B"
1543 );
1544 }
1545
1546 ret = rtw_joinbss_cmd(adapter, candidate);
1547
1548 exit:
1549 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1550 return ret;
1551 }
1552
1553 int rtw_set_auth(struct adapter *adapter, struct security_priv *psecuritypriv)
1554 {
1555 struct cmd_obj *pcmd;
1556 struct setauth_parm *psetauthparm;
1557 struct cmd_priv *pcmdpriv = &(adapter->cmdpriv);
1558 int res = _SUCCESS;
1559
1560 pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
1561 if (!pcmd) {
1562 res = _FAIL; /* try again */
1563 goto exit;
1564 }
1565
1566 psetauthparm = kzalloc(sizeof(struct setauth_parm), GFP_KERNEL);
1567 if (!psetauthparm) {
1568 kfree(pcmd);
1569 res = _FAIL;
1570 goto exit;
1571 }
1572 psetauthparm->mode = (unsigned char)psecuritypriv->dot11AuthAlgrthm;
1573 pcmd->cmdcode = _SetAuth_CMD_;
1574 pcmd->parmbuf = (unsigned char *)psetauthparm;
1575 pcmd->cmdsz = sizeof(struct setauth_parm);
1576 pcmd->rsp = NULL;
1577 pcmd->rspsz = 0;
1578 INIT_LIST_HEAD(&pcmd->list);
1579 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1580 ("after enqueue set_auth_cmd, auth_mode=%x\n",
1581 psecuritypriv->dot11AuthAlgrthm));
1582 res = rtw_enqueue_cmd(pcmdpriv, pcmd);
1583 exit:
1584 return res;
1585 }
1586
1587 int rtw_set_key(struct adapter *adapter, struct security_priv *psecuritypriv, int keyid, u8 set_tx)
1588 {
1589 u8 keylen;
1590 struct cmd_obj *pcmd;
1591 struct setkey_parm *psetkeyparm;
1592 struct cmd_priv *pcmdpriv = &(adapter->cmdpriv);
1593 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1594 int res = _SUCCESS;
1595
1596 pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
1597 if (!pcmd)
1598 return _FAIL; /* try again */
1599
1600 psetkeyparm = kzalloc(sizeof(struct setkey_parm), GFP_KERNEL);
1601 if (!psetkeyparm) {
1602 res = _FAIL;
1603 goto err_free_cmd;
1604 }
1605
1606 if (psecuritypriv->dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
1607 psetkeyparm->algorithm = (unsigned char)psecuritypriv->dot118021XGrpPrivacy;
1608 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1609 ("\n rtw_set_key: psetkeyparm->algorithm=(unsigned char)psecuritypriv->dot118021XGrpPrivacy=%d\n",
1610 psetkeyparm->algorithm));
1611 } else {
1612 psetkeyparm->algorithm = (u8)psecuritypriv->dot11PrivacyAlgrthm;
1613 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1614 ("\n rtw_set_key: psetkeyparm->algorithm=(u8)psecuritypriv->dot11PrivacyAlgrthm=%d\n",
1615 psetkeyparm->algorithm));
1616 }
1617 psetkeyparm->keyid = (u8)keyid;/* 0~3 */
1618 psetkeyparm->set_tx = set_tx;
1619 pmlmepriv->key_mask |= BIT(psetkeyparm->keyid);
1620 DBG_88E("==> rtw_set_key algorithm(%x), keyid(%x), key_mask(%x)\n",
1621 psetkeyparm->algorithm, psetkeyparm->keyid, pmlmepriv->key_mask);
1622 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1623 ("\n rtw_set_key: psetkeyparm->algorithm=%d psetkeyparm->keyid=(u8)keyid=%d\n",
1624 psetkeyparm->algorithm, keyid));
1625
1626 switch (psetkeyparm->algorithm) {
1627 case _WEP40_:
1628 keylen = 5;
1629 memcpy(&(psetkeyparm->key[0]), &(psecuritypriv->dot11DefKey[keyid].skey[0]), keylen);
1630 break;
1631 case _WEP104_:
1632 keylen = 13;
1633 memcpy(&(psetkeyparm->key[0]), &(psecuritypriv->dot11DefKey[keyid].skey[0]), keylen);
1634 break;
1635 case _TKIP_:
1636 keylen = 16;
1637 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
1638 psetkeyparm->grpkey = 1;
1639 break;
1640 case _AES_:
1641 keylen = 16;
1642 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
1643 psetkeyparm->grpkey = 1;
1644 break;
1645 default:
1646 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1647 ("\n rtw_set_key:psecuritypriv->dot11PrivacyAlgrthm=%x (must be 1 or 2 or 4 or 5)\n",
1648 psecuritypriv->dot11PrivacyAlgrthm));
1649 res = _FAIL;
1650 goto err_free_parm;
1651 }
1652 pcmd->cmdcode = _SetKey_CMD_;
1653 pcmd->parmbuf = (u8 *)psetkeyparm;
1654 pcmd->cmdsz = sizeof(struct setkey_parm);
1655 pcmd->rsp = NULL;
1656 pcmd->rspsz = 0;
1657 INIT_LIST_HEAD(&pcmd->list);
1658 res = rtw_enqueue_cmd(pcmdpriv, pcmd);
1659 return res;
1660
1661 err_free_parm:
1662 kfree(psetkeyparm);
1663 err_free_cmd:
1664 kfree(pcmd);
1665 return res;
1666 }
1667
1668 /* adjust IEs for rtw_joinbss_cmd in WMM */
1669 int rtw_restruct_wmm_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len, uint initial_out_len)
1670 {
1671 unsigned int ielength = 0;
1672 unsigned int i, j;
1673
1674 /* i = 12; after the fixed IE */
1675 for (i = 12; i < in_len; i += (in_ie[i + 1] + 2) /* to the next IE element */) {
1676 ielength = initial_out_len;
1677
1678 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) {
1679 /* WMM element ID and OUI */
1680 /* Append WMM IE to the last index of out_ie */
1681
1682 for (j = i; j < i + 9; j++) {
1683 out_ie[ielength] = in_ie[j];
1684 ielength++;
1685 }
1686 out_ie[initial_out_len + 1] = 0x07;
1687 out_ie[initial_out_len + 6] = 0x00;
1688 out_ie[initial_out_len + 8] = 0x00;
1689 break;
1690 }
1691 }
1692 return ielength;
1693 }
1694
1695 /*
1696 * Ported from 8185: IsInPreAuthKeyList().
1697 * (Renamed from SecIsInPreAuthKeyList(), 2006-10-13.)
1698 * Added by Annie, 2006-05-07.
1699 * Search by BSSID,
1700 * Return Value:
1701 * -1 :if there is no pre-auth key in the table
1702 * >= 0 :if there is pre-auth key, and return the entry id
1703 */
1704 static int SecIsInPMKIDList(struct adapter *Adapter, u8 *bssid)
1705 {
1706 struct security_priv *psecuritypriv = &Adapter->securitypriv;
1707 int i = 0;
1708
1709 do {
1710 if ((psecuritypriv->PMKIDList[i].bUsed) &&
1711 (!memcmp(psecuritypriv->PMKIDList[i].Bssid, bssid, ETH_ALEN)))
1712 break;
1713 } while (++i < NUM_PMKID_CACHE);
1714
1715 if (i == NUM_PMKID_CACHE)
1716 i = -1;/* Could not find. */
1717
1718 return i;
1719 }
1720
1721 /* */
1722 /* Check the RSN IE length */
1723 /* If the RSN IE length <= 20, the RSN IE didn't include the PMKID information */
1724 /* 0-11th element in the array are the fixed IE */
1725 /* 12th element in the array is the IE */
1726 /* 13th element in the array is the IE length */
1727 /* */
1728
1729 static int rtw_append_pmkid(struct adapter *Adapter, int iEntry, u8 *ie, uint ie_len)
1730 {
1731 struct security_priv *psecuritypriv = &Adapter->securitypriv;
1732
1733 if (ie[13] <= 20) {
1734 /* The RSN IE didn't include the PMK ID, append the PMK information */
1735 ie[ie_len] = 1;
1736 ie_len++;
1737 ie[ie_len] = 0; /* PMKID count = 0x0100 */
1738 ie_len++;
1739 memcpy(&ie[ie_len], &psecuritypriv->PMKIDList[iEntry].PMKID, 16);
1740
1741 ie_len += 16;
1742 ie[13] += 18;/* PMKID length = 2+16 */
1743 }
1744 return ie_len;
1745 }
1746
1747 int rtw_restruct_sec_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len)
1748 {
1749 u8 authmode;
1750 uint ielength;
1751 int iEntry;
1752
1753 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1754 struct security_priv *psecuritypriv = &adapter->securitypriv;
1755 uint ndisauthmode = psecuritypriv->ndisauthtype;
1756 uint ndissecuritytype = psecuritypriv->ndisencryptstatus;
1757
1758 RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_,
1759 ("+%s: ndisauthmode=%d ndissecuritytype=%d\n", __func__,
1760 ndisauthmode, ndissecuritytype));
1761
1762 /* copy fixed ie only */
1763 memcpy(out_ie, in_ie, 12);
1764 ielength = 12;
1765 if ((ndisauthmode == Ndis802_11AuthModeWPA) ||
1766 (ndisauthmode == Ndis802_11AuthModeWPAPSK))
1767 authmode = _WPA_IE_ID_;
1768 if ((ndisauthmode == Ndis802_11AuthModeWPA2) ||
1769 (ndisauthmode == Ndis802_11AuthModeWPA2PSK))
1770 authmode = _WPA2_IE_ID_;
1771
1772 if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
1773 memcpy(out_ie+ielength, psecuritypriv->wps_ie, psecuritypriv->wps_ie_len);
1774
1775 ielength += psecuritypriv->wps_ie_len;
1776 } else if ((authmode == _WPA_IE_ID_) || (authmode == _WPA2_IE_ID_)) {
1777 /* copy RSN or SSN */
1778 memcpy(&out_ie[ielength], &psecuritypriv->supplicant_ie[0], psecuritypriv->supplicant_ie[1]+2);
1779 ielength += psecuritypriv->supplicant_ie[1]+2;
1780 rtw_report_sec_ie(adapter, authmode, psecuritypriv->supplicant_ie);
1781 }
1782
1783 iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
1784 if (iEntry < 0) {
1785 return ielength;
1786 } else {
1787 if (authmode == _WPA2_IE_ID_)
1788 ielength = rtw_append_pmkid(adapter, iEntry, out_ie, ielength);
1789 }
1790 return ielength;
1791 }
1792
1793 void rtw_init_registrypriv_dev_network(struct adapter *adapter)
1794 {
1795 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1796 struct eeprom_priv *peepriv = &adapter->eeprompriv;
1797 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1798 u8 *myhwaddr = myid(peepriv);
1799
1800 memcpy(pdev_network->MacAddress, myhwaddr, ETH_ALEN);
1801
1802 memcpy(&pdev_network->Ssid, &pregistrypriv->ssid, sizeof(struct ndis_802_11_ssid));
1803
1804 pdev_network->Configuration.Length = sizeof(struct ndis_802_11_config);
1805 pdev_network->Configuration.BeaconPeriod = 100;
1806 pdev_network->Configuration.FHConfig.Length = 0;
1807 pdev_network->Configuration.FHConfig.HopPattern = 0;
1808 pdev_network->Configuration.FHConfig.HopSet = 0;
1809 pdev_network->Configuration.FHConfig.DwellTime = 0;
1810 }
1811
1812 void rtw_update_registrypriv_dev_network(struct adapter *adapter)
1813 {
1814 int sz = 0;
1815 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1816 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1817 struct security_priv *psecuritypriv = &adapter->securitypriv;
1818 struct wlan_network *cur_network = &adapter->mlmepriv.cur_network;
1819
1820 pdev_network->Privacy = psecuritypriv->dot11PrivacyAlgrthm > 0 ? 1 : 0; /* adhoc no 802.1x */
1821
1822 pdev_network->Rssi = 0;
1823
1824 switch (pregistrypriv->wireless_mode) {
1825 case WIRELESS_11B:
1826 pdev_network->NetworkTypeInUse = Ndis802_11DS;
1827 break;
1828 case WIRELESS_11G:
1829 case WIRELESS_11BG:
1830 case WIRELESS_11_24N:
1831 case WIRELESS_11G_24N:
1832 case WIRELESS_11BG_24N:
1833 pdev_network->NetworkTypeInUse = Ndis802_11OFDM24;
1834 break;
1835 case WIRELESS_11A:
1836 case WIRELESS_11A_5N:
1837 pdev_network->NetworkTypeInUse = Ndis802_11OFDM5;
1838 break;
1839 case WIRELESS_11ABGN:
1840 if (pregistrypriv->channel > 14)
1841 pdev_network->NetworkTypeInUse = Ndis802_11OFDM5;
1842 else
1843 pdev_network->NetworkTypeInUse = Ndis802_11OFDM24;
1844 break;
1845 default:
1846 /* TODO */
1847 break;
1848 }
1849
1850 pdev_network->Configuration.DSConfig = pregistrypriv->channel;
1851 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
1852 ("pregistrypriv->channel=%d, pdev_network->Configuration.DSConfig=0x%x\n",
1853 pregistrypriv->channel, pdev_network->Configuration.DSConfig));
1854
1855 if (cur_network->network.InfrastructureMode == Ndis802_11IBSS)
1856 pdev_network->Configuration.ATIMWindow = 0;
1857
1858 pdev_network->InfrastructureMode = cur_network->network.InfrastructureMode;
1859
1860 /* 1. Supported rates */
1861 /* 2. IE */
1862
1863 sz = rtw_generate_ie(pregistrypriv);
1864 pdev_network->IELength = sz;
1865 pdev_network->Length = get_wlan_bssid_ex_sz((struct wlan_bssid_ex *)pdev_network);
1866
1867 /* notes: translate IELength & Length after assign the Length to cmdsz in createbss_cmd(); */
1868 /* pdev_network->IELength = cpu_to_le32(sz); */
1869 }
1870
1871 void rtw_get_encrypt_decrypt_from_registrypriv(struct adapter *adapter)
1872 {
1873 }
1874
1875 /* the function is at passive_level */
1876 void rtw_joinbss_reset(struct adapter *padapter)
1877 {
1878 u8 threshold;
1879 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1880 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1881
1882 /* todo: if you want to do something io/reg/hw setting before join_bss, please add code here */
1883 pmlmepriv->num_FortyMHzIntolerant = 0;
1884
1885 pmlmepriv->num_sta_no_ht = 0;
1886
1887 phtpriv->ampdu_enable = false;/* reset to disabled */
1888
1889 /* TH = 1 => means that invalidate usb rx aggregation */
1890 /* TH = 0 => means that validate usb rx aggregation, use init value. */
1891 if (phtpriv->ht_option) {
1892 if (padapter->registrypriv.wifi_spec == 1)
1893 threshold = 1;
1894 else
1895 threshold = 0;
1896 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
1897 } else {
1898 threshold = 1;
1899 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
1900 }
1901 }
1902
1903 /* the function is >= passive_level */
1904 unsigned int rtw_restructure_ht_ie(struct adapter *padapter, u8 *in_ie, u8 *out_ie, uint in_len, uint *pout_len)
1905 {
1906 u32 ielen, out_len;
1907 enum ht_cap_ampdu_factor max_rx_ampdu_factor;
1908 unsigned char *p;
1909 unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
1910 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1911 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
1912 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1913 u32 rx_packet_offset, max_recvbuf_sz;
1914
1915 phtpriv->ht_option = false;
1916
1917 p = rtw_get_ie(in_ie+12, _HT_CAPABILITY_IE_, &ielen, in_len-12);
1918
1919 if (p && ielen > 0) {
1920 struct ieee80211_ht_cap ht_cap;
1921
1922 if (pqospriv->qos_option == 0) {
1923 out_len = *pout_len;
1924 rtw_set_ie(out_ie + out_len, _VENDOR_SPECIFIC_IE_,
1925 _WMM_IE_Length_, WMM_IE, pout_len);
1926
1927 pqospriv->qos_option = 1;
1928 }
1929
1930 out_len = *pout_len;
1931
1932 memset(&ht_cap, 0, sizeof(struct ieee80211_ht_cap));
1933
1934 ht_cap.cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH |
1935 IEEE80211_HT_CAP_SGI_20 |
1936 IEEE80211_HT_CAP_SGI_40 |
1937 IEEE80211_HT_CAP_TX_STBC |
1938 IEEE80211_HT_CAP_DSSSCCK40);
1939
1940 rtw_hal_get_def_var(padapter, HAL_DEF_RX_PACKET_OFFSET, &rx_packet_offset);
1941 rtw_hal_get_def_var(padapter, HAL_DEF_MAX_RECVBUF_SZ, &max_recvbuf_sz);
1942
1943 /*
1944 ampdu_params_info [1:0]:Max AMPDU Len => 0:8k , 1:16k, 2:32k, 3:64k
1945 ampdu_params_info [4:2]:Min MPDU Start Spacing
1946 */
1947
1948 rtw_hal_get_def_var(padapter, HW_VAR_MAX_RX_AMPDU_FACTOR, &max_rx_ampdu_factor);
1949 ht_cap.ampdu_params_info = max_rx_ampdu_factor & 0x03;
1950
1951 if (padapter->securitypriv.dot11PrivacyAlgrthm == _AES_)
1952 ht_cap.ampdu_params_info |= IEEE80211_HT_CAP_AMPDU_DENSITY & (0x07 << 2);
1953 else
1954 ht_cap.ampdu_params_info |= IEEE80211_HT_CAP_AMPDU_DENSITY & 0x00;
1955
1956 rtw_set_ie(out_ie+out_len, _HT_CAPABILITY_IE_,
1957 sizeof(struct ieee80211_ht_cap),
1958 (unsigned char *)&ht_cap, pout_len);
1959
1960 phtpriv->ht_option = true;
1961
1962 p = rtw_get_ie(in_ie+12, _HT_ADD_INFO_IE_, &ielen, in_len-12);
1963 if (p && (ielen == sizeof(struct ieee80211_ht_addt_info))) {
1964 out_len = *pout_len;
1965 rtw_set_ie(out_ie+out_len, _HT_ADD_INFO_IE_, ielen, p+2, pout_len);
1966 }
1967 }
1968 return phtpriv->ht_option;
1969 }
1970
1971 /* the function is > passive_level (in critical_section) */
1972 void rtw_update_ht_cap(struct adapter *padapter, u8 *pie, uint ie_len)
1973 {
1974 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1975 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1976 struct registry_priv *pregistrypriv = &padapter->registrypriv;
1977 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1978 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1979
1980 if (!phtpriv->ht_option)
1981 return;
1982
1983 if ((!pmlmeinfo->HT_info_enable) || (!pmlmeinfo->HT_caps_enable))
1984 return;
1985
1986 DBG_88E("+%s()\n", __func__);
1987
1988 /* maybe needs check if ap supports rx ampdu. */
1989 if ((!phtpriv->ampdu_enable) && (pregistrypriv->ampdu_enable == 1)) {
1990 if (pregistrypriv->wifi_spec == 1)
1991 phtpriv->ampdu_enable = false;
1992 else
1993 phtpriv->ampdu_enable = true;
1994 } else if (pregistrypriv->ampdu_enable == 2) {
1995 phtpriv->ampdu_enable = true;
1996 }
1997
1998 /* update cur_bwmode & cur_ch_offset */
1999 if ((pregistrypriv->cbw40_enable) &&
2000 (le16_to_cpu(pmlmeinfo->HT_caps.cap_info) & BIT(1)) &&
2001 (pmlmeinfo->HT_info.infos[0] & BIT(2))) {
2002 int i;
2003
2004 /* update the MCS rates */
2005 for (i = 0; i < 16; i++)
2006 ((u8 *)&pmlmeinfo->HT_caps.mcs)[i] &= MCS_rate_1R[i];
2007 /* switch to the 40M Hz mode according to the AP */
2008 pmlmeext->cur_bwmode = HT_CHANNEL_WIDTH_40;
2009 switch ((pmlmeinfo->HT_info.infos[0] & 0x3)) {
2010 case HT_EXTCHNL_OFFSET_UPPER:
2011 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_LOWER;
2012 break;
2013 case HT_EXTCHNL_OFFSET_LOWER:
2014 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_UPPER;
2015 break;
2016 default:
2017 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
2018 break;
2019 }
2020 }
2021
2022 /* Config SM Power Save setting */
2023 pmlmeinfo->SM_PS = (le16_to_cpu(pmlmeinfo->HT_caps.cap_info) & 0x0C) >> 2;
2024 if (pmlmeinfo->SM_PS == WLAN_HT_CAP_SM_PS_STATIC)
2025 DBG_88E("%s(): WLAN_HT_CAP_SM_PS_STATIC\n", __func__);
2026
2027 /* Config current HT Protection mode. */
2028 pmlmeinfo->HT_protection = pmlmeinfo->HT_info.infos[1] & 0x3;
2029 }
2030
2031 void rtw_issue_addbareq_cmd(struct adapter *padapter, struct xmit_frame *pxmitframe)
2032 {
2033 u8 issued;
2034 int priority;
2035 struct sta_info *psta = NULL;
2036 struct ht_priv *phtpriv;
2037 struct pkt_attrib *pattrib = &pxmitframe->attrib;
2038 s32 bmcst = IS_MCAST(pattrib->ra);
2039
2040 if (bmcst || (padapter->mlmepriv.LinkDetectInfo.NumTxOkInPeriod < 100))
2041 return;
2042
2043 priority = pattrib->priority;
2044
2045 if (pattrib->psta)
2046 psta = pattrib->psta;
2047 else
2048 psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
2049
2050 if (!psta)
2051 return;
2052
2053 phtpriv = &psta->htpriv;
2054
2055 if ((phtpriv->ht_option) && (phtpriv->ampdu_enable)) {
2056 issued = (phtpriv->agg_enable_bitmap >> priority) & 0x1;
2057 issued |= (phtpriv->candidate_tid_bitmap >> priority) & 0x1;
2058
2059 if (issued == 0) {
2060 DBG_88E("%s, p=%d\n", __func__, priority);
2061 psta->htpriv.candidate_tid_bitmap |= BIT((u8)priority);
2062 rtw_addbareq_cmd(padapter, (u8)priority, pattrib->ra);
2063 }
2064 }
2065 }
2066
2067 void rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
2068 {
2069 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2070
2071 spin_lock_bh(&pmlmepriv->lock);
2072 _rtw_roaming(padapter, tgt_network);
2073 spin_unlock_bh(&pmlmepriv->lock);
2074 }
2075
2076 void _rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
2077 {
2078 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2079 int do_join_r;
2080
2081 struct wlan_network *pnetwork;
2082
2083 if (tgt_network)
2084 pnetwork = tgt_network;
2085 else
2086 pnetwork = &pmlmepriv->cur_network;
2087
2088 if (pmlmepriv->to_roaming > 0) {
2089 DBG_88E("roaming from %s(%pM length:%d\n",
2090 pnetwork->network.Ssid.Ssid, pnetwork->network.MacAddress,
2091 pnetwork->network.Ssid.SsidLength);
2092 memcpy(&pmlmepriv->assoc_ssid, &pnetwork->network.Ssid, sizeof(struct ndis_802_11_ssid));
2093
2094 pmlmepriv->assoc_by_bssid = false;
2095
2096 while (1) {
2097 do_join_r = rtw_do_join(padapter);
2098 if (do_join_r == _SUCCESS) {
2099 break;
2100 } else {
2101 DBG_88E("roaming do_join return %d\n", do_join_r);
2102 pmlmepriv->to_roaming--;
2103
2104 if (pmlmepriv->to_roaming > 0) {
2105 continue;
2106 } else {
2107 DBG_88E("%s(%d) -to roaming fail, indicate_disconnect\n", __func__, __LINE__);
2108 rtw_indicate_disconnect(padapter);
2109 break;
2110 }
2111 }
2112 }
2113 }
2114 }
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