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_2R[16];
32 extern unsigned char MCS_rate_1R[16];
33
rtw_init_mlme_priv(struct adapter * padapter)34 int rtw_init_mlme_priv(struct adapter *padapter)
35 {
36 int i;
37 u8 *pbuf;
38 struct wlan_network *pnetwork;
39 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
40 int res = _SUCCESS;
41
42 /* We don't need to memset padapter->XXX to zero, because adapter is allocated by vzalloc(). */
43
44 pmlmepriv->nic_hdl = (u8 *)padapter;
45
46 pmlmepriv->pscanned = NULL;
47 pmlmepriv->fw_state = 0;
48 pmlmepriv->cur_network.network.InfrastructureMode = Ndis802_11AutoUnknown;
49 pmlmepriv->scan_mode = SCAN_ACTIVE;/* 1: active, 0: pasive. Maybe someday we should rename this varable to "active_mode" (Jeff) */
50
51 spin_lock_init(&(pmlmepriv->lock));
52 _rtw_init_queue(&(pmlmepriv->free_bss_pool));
53 _rtw_init_queue(&(pmlmepriv->scanned_queue));
54
55 memset(&pmlmepriv->assoc_ssid, 0, sizeof(struct ndis_802_11_ssid));
56
57 pbuf = vzalloc(MAX_BSS_CNT * (sizeof(struct wlan_network)));
58
59 if (pbuf == NULL) {
60 res = _FAIL;
61 goto exit;
62 }
63 pmlmepriv->free_bss_buf = pbuf;
64
65 pnetwork = (struct wlan_network *)pbuf;
66
67 for (i = 0; i < MAX_BSS_CNT; i++) {
68 INIT_LIST_HEAD(&(pnetwork->list));
69
70 list_add_tail(&(pnetwork->list), &(pmlmepriv->free_bss_pool.queue));
71
72 pnetwork++;
73 }
74
75 /* allocate DMA-able/Non-Page memory for cmd_buf and rsp_buf */
76
77 rtw_clear_scan_deny(padapter);
78
79 rtw_init_mlme_timer(padapter);
80
81 exit:
82 return res;
83 }
84
85 #if defined(CONFIG_88EU_AP_MODE)
rtw_free_mlme_ie_data(u8 ** ppie,u32 * plen)86 static void rtw_free_mlme_ie_data(u8 **ppie, u32 *plen)
87 {
88 kfree(*ppie);
89 *plen = 0;
90 *ppie = NULL;
91 }
92
rtw_free_mlme_priv_ie_data(struct mlme_priv * pmlmepriv)93 void rtw_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv)
94 {
95 rtw_buf_free(&pmlmepriv->assoc_req, &pmlmepriv->assoc_req_len);
96 rtw_buf_free(&pmlmepriv->assoc_rsp, &pmlmepriv->assoc_rsp_len);
97 rtw_free_mlme_ie_data(&pmlmepriv->wps_beacon_ie, &pmlmepriv->wps_beacon_ie_len);
98 rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_req_ie, &pmlmepriv->wps_probe_req_ie_len);
99 rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_resp_ie, &pmlmepriv->wps_probe_resp_ie_len);
100 rtw_free_mlme_ie_data(&pmlmepriv->wps_assoc_resp_ie, &pmlmepriv->wps_assoc_resp_ie_len);
101 }
102 #else
rtw_free_mlme_priv_ie_data(struct mlme_priv * pmlmepriv)103 void rtw_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv)
104 {
105 }
106 #endif
107
rtw_free_mlme_priv(struct mlme_priv * pmlmepriv)108 void rtw_free_mlme_priv(struct mlme_priv *pmlmepriv)
109 {
110 if (pmlmepriv) {
111 rtw_free_mlme_priv_ie_data(pmlmepriv);
112 vfree(pmlmepriv->free_bss_buf);
113 }
114 }
115
_rtw_alloc_network(struct mlme_priv * pmlmepriv)116 struct wlan_network *_rtw_alloc_network(struct mlme_priv *pmlmepriv)
117 /* _queue *free_queue) */
118 {
119 struct wlan_network *pnetwork;
120 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
121
122 spin_lock_bh(&free_queue->lock);
123 pnetwork = list_first_entry_or_null(&free_queue->queue,
124 struct wlan_network, list);
125 if (!pnetwork)
126 goto exit;
127
128 list_del_init(&pnetwork->list);
129
130 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
131 ("_rtw_alloc_network: ptr=%p\n", &pnetwork->list));
132 pnetwork->network_type = 0;
133 pnetwork->fixed = false;
134 pnetwork->last_scanned = jiffies;
135 pnetwork->aid = 0;
136 pnetwork->join_res = 0;
137
138 exit:
139 spin_unlock_bh(&free_queue->lock);
140
141 return pnetwork;
142 }
143
_rtw_free_network(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork,u8 isfreeall)144 static void _rtw_free_network(struct mlme_priv *pmlmepriv, struct wlan_network *pnetwork, u8 isfreeall)
145 {
146 unsigned long curr_time;
147 u32 delta_time;
148 u32 lifetime = SCANQUEUE_LIFETIME;
149 struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
150
151 if (pnetwork == NULL)
152 return;
153
154 if (pnetwork->fixed)
155 return;
156 curr_time = jiffies;
157 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) ||
158 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)))
159 lifetime = 1;
160 if (!isfreeall) {
161 delta_time = (curr_time - pnetwork->last_scanned)/HZ;
162 if (delta_time < lifetime)/* unit:sec */
163 return;
164 }
165 spin_lock_bh(&free_queue->lock);
166 list_del_init(&(pnetwork->list));
167 list_add_tail(&(pnetwork->list), &(free_queue->queue));
168 spin_unlock_bh(&free_queue->lock);
169 }
170
_rtw_free_network_nolock(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork)171 void _rtw_free_network_nolock(struct mlme_priv *pmlmepriv, struct wlan_network *pnetwork)
172 {
173 struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
174
175 if (pnetwork == NULL)
176 return;
177 if (pnetwork->fixed)
178 return;
179 list_del_init(&(pnetwork->list));
180 list_add_tail(&(pnetwork->list), get_list_head(free_queue));
181 }
182
183 /*
184 return the wlan_network with the matching addr
185
186 Shall be calle under atomic context... to avoid possible racing condition...
187 */
rtw_find_network(struct __queue * scanned_queue,u8 * addr)188 struct wlan_network *rtw_find_network(struct __queue *scanned_queue, u8 *addr)
189 {
190 struct list_head *phead, *plist;
191 struct wlan_network *pnetwork = NULL;
192 u8 zero_addr[ETH_ALEN] = {0, 0, 0, 0, 0, 0};
193
194 if (!memcmp(zero_addr, addr, ETH_ALEN)) {
195 pnetwork = NULL;
196 goto exit;
197 }
198 phead = get_list_head(scanned_queue);
199 plist = phead->next;
200
201 while (plist != phead) {
202 pnetwork = container_of(plist, struct wlan_network, list);
203 if (!memcmp(addr, pnetwork->network.MacAddress, ETH_ALEN))
204 break;
205 plist = plist->next;
206 }
207 if (plist == phead)
208 pnetwork = NULL;
209 exit:
210 return pnetwork;
211 }
212
213
rtw_free_network_queue(struct adapter * padapter,u8 isfreeall)214 void rtw_free_network_queue(struct adapter *padapter, u8 isfreeall)
215 {
216 struct list_head *phead, *plist;
217 struct wlan_network *pnetwork;
218 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
219 struct __queue *scanned_queue = &pmlmepriv->scanned_queue;
220
221 spin_lock_bh(&scanned_queue->lock);
222
223 phead = get_list_head(scanned_queue);
224 plist = phead->next;
225
226 while (phead != plist) {
227 pnetwork = container_of(plist, struct wlan_network, list);
228
229 plist = plist->next;
230
231 _rtw_free_network(pmlmepriv, pnetwork, isfreeall);
232 }
233 spin_unlock_bh(&scanned_queue->lock);
234 }
235
rtw_if_up(struct adapter * padapter)236 int rtw_if_up(struct adapter *padapter)
237 {
238 int res;
239
240 if (padapter->bDriverStopped || padapter->bSurpriseRemoved ||
241 (check_fwstate(&padapter->mlmepriv, _FW_LINKED) == false)) {
242 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
243 ("rtw_if_up:bDriverStopped(%d) OR bSurpriseRemoved(%d)",
244 padapter->bDriverStopped, padapter->bSurpriseRemoved));
245 res = false;
246 } else {
247 res = true;
248 }
249 return res;
250 }
251
rtw_generate_random_ibss(u8 * pibss)252 void rtw_generate_random_ibss(u8 *pibss)
253 {
254 unsigned long curtime = jiffies;
255
256 pibss[0] = 0x02; /* in ad-hoc mode bit1 must set to 1 */
257 pibss[1] = 0x11;
258 pibss[2] = 0x87;
259 pibss[3] = (u8)(curtime & 0xff);/* p[0]; */
260 pibss[4] = (u8)((curtime>>8) & 0xff);/* p[1]; */
261 pibss[5] = (u8)((curtime>>16) & 0xff);/* p[2]; */
262 }
263
rtw_get_capability_from_ie(u8 * ie)264 u8 *rtw_get_capability_from_ie(u8 *ie)
265 {
266 return ie + 8 + 2;
267 }
268
269
rtw_get_capability(struct wlan_bssid_ex * bss)270 u16 rtw_get_capability(struct wlan_bssid_ex *bss)
271 {
272 __le16 val;
273
274 memcpy((u8 *)&val, rtw_get_capability_from_ie(bss->IEs), 2);
275
276 return le16_to_cpu(val);
277 }
278
rtw_get_beacon_interval_from_ie(u8 * ie)279 u8 *rtw_get_beacon_interval_from_ie(u8 *ie)
280 {
281 return ie + 8;
282 }
283
rtw_alloc_network(struct mlme_priv * pmlmepriv)284 static struct wlan_network *rtw_alloc_network(struct mlme_priv *pmlmepriv)
285 {
286 return _rtw_alloc_network(pmlmepriv);
287 }
288
rtw_free_network_nolock(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork)289 static void rtw_free_network_nolock(struct mlme_priv *pmlmepriv,
290 struct wlan_network *pnetwork)
291 {
292 _rtw_free_network_nolock(pmlmepriv, pnetwork);
293 }
294
rtw_is_same_ibss(struct adapter * adapter,struct wlan_network * pnetwork)295 int rtw_is_same_ibss(struct adapter *adapter, struct wlan_network *pnetwork)
296 {
297 int ret = true;
298 struct security_priv *psecuritypriv = &adapter->securitypriv;
299
300 if ((psecuritypriv->dot11PrivacyAlgrthm != _NO_PRIVACY_) &&
301 (pnetwork->network.Privacy == 0))
302 ret = false;
303 else if ((psecuritypriv->dot11PrivacyAlgrthm == _NO_PRIVACY_) &&
304 (pnetwork->network.Privacy == 1))
305 ret = false;
306 else
307 ret = true;
308 return ret;
309 }
310
is_same_ess(struct wlan_bssid_ex * a,struct wlan_bssid_ex * b)311 static int is_same_ess(struct wlan_bssid_ex *a, struct wlan_bssid_ex *b)
312 {
313 return (a->Ssid.SsidLength == b->Ssid.SsidLength) &&
314 !memcmp(a->Ssid.Ssid, b->Ssid.Ssid, a->Ssid.SsidLength);
315 }
316
is_same_network(struct wlan_bssid_ex * src,struct wlan_bssid_ex * dst)317 int is_same_network(struct wlan_bssid_ex *src, struct wlan_bssid_ex *dst)
318 {
319 u16 s_cap, d_cap;
320 __le16 le_scap, le_dcap;
321
322 memcpy((u8 *)&le_scap, rtw_get_capability_from_ie(src->IEs), 2);
323 memcpy((u8 *)&le_dcap, rtw_get_capability_from_ie(dst->IEs), 2);
324
325
326 s_cap = le16_to_cpu(le_scap);
327 d_cap = le16_to_cpu(le_dcap);
328
329 return ((src->Ssid.SsidLength == dst->Ssid.SsidLength) &&
330 ((!memcmp(src->MacAddress, dst->MacAddress, ETH_ALEN)) == true) &&
331 ((!memcmp(src->Ssid.Ssid, dst->Ssid.Ssid, src->Ssid.SsidLength)) == true) &&
332 ((s_cap & WLAN_CAPABILITY_IBSS) ==
333 (d_cap & WLAN_CAPABILITY_IBSS)) &&
334 ((s_cap & WLAN_CAPABILITY_ESS) ==
335 (d_cap & WLAN_CAPABILITY_ESS)));
336 }
337
rtw_get_oldest_wlan_network(struct __queue * scanned_queue)338 struct wlan_network *rtw_get_oldest_wlan_network(struct __queue *scanned_queue)
339 {
340 struct list_head *plist, *phead;
341 struct wlan_network *pwlan = NULL;
342 struct wlan_network *oldest = NULL;
343
344 phead = get_list_head(scanned_queue);
345
346 for (plist = phead->next; plist != phead; plist = plist->next) {
347 pwlan = container_of(plist, struct wlan_network, list);
348
349 if (!pwlan->fixed) {
350 if (oldest == NULL || time_after(oldest->last_scanned, pwlan->last_scanned))
351 oldest = pwlan;
352 }
353 }
354 return oldest;
355 }
356
update_network(struct wlan_bssid_ex * dst,struct wlan_bssid_ex * src,struct adapter * padapter,bool update_ie)357 void update_network(struct wlan_bssid_ex *dst, struct wlan_bssid_ex *src,
358 struct adapter *padapter, bool update_ie)
359 {
360 long rssi_ori = dst->Rssi;
361 u8 sq_smp = src->PhyInfo.SignalQuality;
362 u8 ss_final;
363 u8 sq_final;
364 long rssi_final;
365
366 rtw_hal_antdiv_rssi_compared(padapter, dst, src); /* this will update src.Rssi, need consider again */
367
368 /* The rule below is 1/5 for sample value, 4/5 for history value */
369 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) && is_same_network(&(padapter->mlmepriv.cur_network.network), src)) {
370 /* Take the recvpriv's value for the connected AP*/
371 ss_final = padapter->recvpriv.signal_strength;
372 sq_final = padapter->recvpriv.signal_qual;
373 /* the rssi value here is undecorated, and will be used for antenna diversity */
374 if (sq_smp != 101) /* from the right channel */
375 rssi_final = (src->Rssi+dst->Rssi*4)/5;
376 else
377 rssi_final = rssi_ori;
378 } else {
379 if (sq_smp != 101) { /* from the right channel */
380 ss_final = ((u32)(src->PhyInfo.SignalStrength)+(u32)(dst->PhyInfo.SignalStrength)*4)/5;
381 sq_final = ((u32)(src->PhyInfo.SignalQuality)+(u32)(dst->PhyInfo.SignalQuality)*4)/5;
382 rssi_final = (src->Rssi+dst->Rssi*4)/5;
383 } else {
384 /* bss info not receiving from the right channel, use the original RX signal infos */
385 ss_final = dst->PhyInfo.SignalStrength;
386 sq_final = dst->PhyInfo.SignalQuality;
387 rssi_final = dst->Rssi;
388 }
389 }
390 if (update_ie)
391 memcpy((u8 *)dst, (u8 *)src, get_wlan_bssid_ex_sz(src));
392 dst->PhyInfo.SignalStrength = ss_final;
393 dst->PhyInfo.SignalQuality = sq_final;
394 dst->Rssi = rssi_final;
395
396 }
397
update_current_network(struct adapter * adapter,struct wlan_bssid_ex * pnetwork)398 static void update_current_network(struct adapter *adapter, struct wlan_bssid_ex *pnetwork)
399 {
400 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
401
402 if ((check_fwstate(pmlmepriv, _FW_LINKED) == true) &&
403 (is_same_network(&(pmlmepriv->cur_network.network), pnetwork))) {
404 update_network(&(pmlmepriv->cur_network.network), pnetwork, adapter, true);
405 rtw_update_protection(adapter, (pmlmepriv->cur_network.network.IEs) + sizeof(struct ndis_802_11_fixed_ie),
406 pmlmepriv->cur_network.network.IELength);
407 }
408 }
409
410 /*
411 Caller must hold pmlmepriv->lock first.
412 */
rtw_update_scanned_network(struct adapter * adapter,struct wlan_bssid_ex * target)413 void rtw_update_scanned_network(struct adapter *adapter, struct wlan_bssid_ex *target)
414 {
415 struct list_head *plist, *phead;
416 u32 bssid_ex_sz;
417 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
418 struct __queue *queue = &(pmlmepriv->scanned_queue);
419 struct wlan_network *pnetwork = NULL;
420 struct wlan_network *oldest = NULL;
421
422 spin_lock_bh(&queue->lock);
423 phead = get_list_head(queue);
424 plist = phead->next;
425
426 while (phead != plist) {
427 pnetwork = container_of(plist, struct wlan_network, list);
428
429 if (is_same_network(&(pnetwork->network), target))
430 break;
431 if ((oldest == ((struct wlan_network *)0)) ||
432 time_after(oldest->last_scanned, pnetwork->last_scanned))
433 oldest = pnetwork;
434 plist = plist->next;
435 }
436 /* If we didn't find a match, then get a new network slot to initialize
437 * with this beacon's information */
438 if (phead == plist) {
439 if (list_empty(&(pmlmepriv->free_bss_pool.queue))) {
440 /* If there are no more slots, expire the oldest */
441 pnetwork = oldest;
442
443 rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(target->PhyInfo.Optimum_antenna));
444 memcpy(&(pnetwork->network), target, get_wlan_bssid_ex_sz(target));
445 /* variable initialize */
446 pnetwork->fixed = false;
447 pnetwork->last_scanned = jiffies;
448
449 pnetwork->network_type = 0;
450 pnetwork->aid = 0;
451 pnetwork->join_res = 0;
452
453 /* bss info not receiving from the right channel */
454 if (pnetwork->network.PhyInfo.SignalQuality == 101)
455 pnetwork->network.PhyInfo.SignalQuality = 0;
456 } else {
457 /* Otherwise just pull from the free list */
458
459 pnetwork = rtw_alloc_network(pmlmepriv); /* will update scan_time */
460
461 if (pnetwork == NULL) {
462 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n\n\nsomething wrong here\n\n\n"));
463 goto exit;
464 }
465
466 bssid_ex_sz = get_wlan_bssid_ex_sz(target);
467 target->Length = bssid_ex_sz;
468 rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(target->PhyInfo.Optimum_antenna));
469 memcpy(&(pnetwork->network), target, bssid_ex_sz);
470
471 pnetwork->last_scanned = jiffies;
472
473 /* bss info not receiving from the right channel */
474 if (pnetwork->network.PhyInfo.SignalQuality == 101)
475 pnetwork->network.PhyInfo.SignalQuality = 0;
476 list_add_tail(&(pnetwork->list), &(queue->queue));
477 }
478 } else {
479 /* we have an entry and we are going to update it. But this entry may
480 * be already expired. In this case we do the same as we found a new
481 * net and call the new_net handler
482 */
483 bool update_ie = true;
484
485 pnetwork->last_scanned = jiffies;
486
487 /* target.Reserved[0]== 1, means that scanned network is a bcn frame. */
488 if ((pnetwork->network.IELength > target->IELength) && (target->Reserved[0] == 1))
489 update_ie = false;
490
491 update_network(&(pnetwork->network), target, adapter, update_ie);
492 }
493
494 exit:
495 spin_unlock_bh(&queue->lock);
496
497 }
498
rtw_add_network(struct adapter * adapter,struct wlan_bssid_ex * pnetwork)499 static void rtw_add_network(struct adapter *adapter,
500 struct wlan_bssid_ex *pnetwork)
501 {
502 update_current_network(adapter, pnetwork);
503 rtw_update_scanned_network(adapter, pnetwork);
504 }
505
506 /*
507 * select the desired network based on the capability of the (i)bss.
508 * check items: (1) security
509 * (2) network_type
510 * (3) WMM
511 * (4) HT
512 * (5) others
513 */
rtw_is_desired_network(struct adapter * adapter,struct wlan_network * pnetwork)514 static int rtw_is_desired_network(struct adapter *adapter, struct wlan_network *pnetwork)
515 {
516 struct security_priv *psecuritypriv = &adapter->securitypriv;
517 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
518 u32 desired_encmode;
519 u32 privacy;
520
521 /* u8 wps_ie[512]; */
522 uint wps_ielen;
523
524 int bselected = true;
525
526 desired_encmode = psecuritypriv->ndisencryptstatus;
527 privacy = pnetwork->network.Privacy;
528
529 if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
530 if (rtw_get_wps_ie(pnetwork->network.IEs+_FIXED_IE_LENGTH_, pnetwork->network.IELength-_FIXED_IE_LENGTH_, NULL, &wps_ielen) != NULL)
531 return true;
532 else
533 return false;
534 }
535 if (adapter->registrypriv.wifi_spec == 1) { /* for correct flow of 8021X to do.... */
536 if ((desired_encmode == Ndis802_11EncryptionDisabled) && (privacy != 0))
537 bselected = false;
538 }
539
540
541 if ((desired_encmode != Ndis802_11EncryptionDisabled) && (privacy == 0)) {
542 DBG_88E("desired_encmode: %d, privacy: %d\n", desired_encmode, privacy);
543 bselected = false;
544 }
545
546 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) {
547 if (pnetwork->network.InfrastructureMode != pmlmepriv->cur_network.network.InfrastructureMode)
548 bselected = false;
549 }
550
551
552 return bselected;
553 }
554
555 /* TODO: Perry: For Power Management */
rtw_atimdone_event_callback(struct adapter * adapter,u8 * pbuf)556 void rtw_atimdone_event_callback(struct adapter *adapter, u8 *pbuf)
557 {
558 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("receive atimdone_evet\n"));
559 }
560
561
rtw_survey_event_callback(struct adapter * adapter,u8 * pbuf)562 void rtw_survey_event_callback(struct adapter *adapter, u8 *pbuf)
563 {
564 u32 len;
565 struct wlan_bssid_ex *pnetwork;
566 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
567
568 pnetwork = (struct wlan_bssid_ex *)pbuf;
569
570 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_survey_event_callback, ssid=%s\n", pnetwork->Ssid.Ssid));
571
572 len = get_wlan_bssid_ex_sz(pnetwork);
573 if (len > (sizeof(struct wlan_bssid_ex))) {
574 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n****rtw_survey_event_callback: return a wrong bss ***\n"));
575 return;
576 }
577 spin_lock_bh(&pmlmepriv->lock);
578
579 /* update IBSS_network 's timestamp */
580 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) == true) {
581 if (!memcmp(&(pmlmepriv->cur_network.network.MacAddress), pnetwork->MacAddress, ETH_ALEN)) {
582 struct wlan_network *ibss_wlan = NULL;
583
584 memcpy(pmlmepriv->cur_network.network.IEs, pnetwork->IEs, 8);
585 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
586 ibss_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->MacAddress);
587 if (ibss_wlan) {
588 memcpy(ibss_wlan->network.IEs, pnetwork->IEs, 8);
589 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
590 goto exit;
591 }
592 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
593 }
594 }
595
596 /* lock pmlmepriv->lock when you accessing network_q */
597 if ((check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) == false) {
598 if (pnetwork->Ssid.Ssid[0] == 0)
599 pnetwork->Ssid.SsidLength = 0;
600 rtw_add_network(adapter, pnetwork);
601 }
602
603 exit:
604
605 spin_unlock_bh(&pmlmepriv->lock);
606 return;
607 }
608
rtw_surveydone_event_callback(struct adapter * adapter,u8 * pbuf)609 void rtw_surveydone_event_callback(struct adapter *adapter, u8 *pbuf)
610 {
611 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
612
613 spin_lock_bh(&pmlmepriv->lock);
614
615 if (pmlmepriv->wps_probe_req_ie) {
616 pmlmepriv->wps_probe_req_ie_len = 0;
617 kfree(pmlmepriv->wps_probe_req_ie);
618 pmlmepriv->wps_probe_req_ie = NULL;
619 }
620
621 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_surveydone_event_callback: fw_state:%x\n\n", get_fwstate(pmlmepriv)));
622
623 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
624 del_timer_sync(&pmlmepriv->scan_to_timer);
625 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
626 } else {
627 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("nic status=%x, survey done event comes too late!\n", get_fwstate(pmlmepriv)));
628 }
629
630 rtw_set_signal_stat_timer(&adapter->recvpriv);
631
632 if (pmlmepriv->to_join) {
633 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true)) {
634 if (check_fwstate(pmlmepriv, _FW_LINKED) == false) {
635 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
636
637 if (rtw_select_and_join_from_scanned_queue(pmlmepriv) == _SUCCESS) {
638 mod_timer(&pmlmepriv->assoc_timer,
639 jiffies + msecs_to_jiffies(MAX_JOIN_TIMEOUT));
640 } else {
641 struct wlan_bssid_ex *pdev_network = &(adapter->registrypriv.dev_network);
642 u8 *pibss = adapter->registrypriv.dev_network.MacAddress;
643
644 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
645
646 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("switching to adhoc master\n"));
647
648 memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
649
650 rtw_update_registrypriv_dev_network(adapter);
651 rtw_generate_random_ibss(pibss);
652
653 pmlmepriv->fw_state = WIFI_ADHOC_MASTER_STATE;
654
655 if (rtw_createbss_cmd(adapter) != _SUCCESS)
656 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Error=>rtw_createbss_cmd status FAIL\n"));
657 pmlmepriv->to_join = false;
658 }
659 }
660 } else {
661 int s_ret;
662 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
663 pmlmepriv->to_join = false;
664 s_ret = rtw_select_and_join_from_scanned_queue(pmlmepriv);
665 if (_SUCCESS == s_ret) {
666 mod_timer(&pmlmepriv->assoc_timer,
667 jiffies + msecs_to_jiffies(MAX_JOIN_TIMEOUT));
668 } else if (s_ret == 2) { /* there is no need to wait for join */
669 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
670 rtw_indicate_connect(adapter);
671 } else {
672 DBG_88E("try_to_join, but select scanning queue fail, to_roaming:%d\n", pmlmepriv->to_roaming);
673 if (pmlmepriv->to_roaming != 0) {
674 if (--pmlmepriv->to_roaming == 0 ||
675 _SUCCESS != rtw_sitesurvey_cmd(adapter, &pmlmepriv->assoc_ssid, 1, NULL, 0)) {
676 pmlmepriv->to_roaming = 0;
677 rtw_free_assoc_resources(adapter);
678 rtw_indicate_disconnect(adapter);
679 } else {
680 pmlmepriv->to_join = true;
681 }
682 }
683 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
684 }
685 }
686 }
687
688 indicate_wx_scan_complete_event(adapter);
689
690 spin_unlock_bh(&pmlmepriv->lock);
691
692 rtw_os_xmit_schedule(adapter);
693 }
694
rtw_dummy_event_callback(struct adapter * adapter,u8 * pbuf)695 void rtw_dummy_event_callback(struct adapter *adapter, u8 *pbuf)
696 {
697 }
698
rtw_fwdbg_event_callback(struct adapter * adapter,u8 * pbuf)699 void rtw_fwdbg_event_callback(struct adapter *adapter, u8 *pbuf)
700 {
701 }
702
free_scanqueue(struct mlme_priv * pmlmepriv)703 static void free_scanqueue(struct mlme_priv *pmlmepriv)
704 {
705 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
706 struct __queue *scan_queue = &pmlmepriv->scanned_queue;
707 struct list_head *plist, *phead, *ptemp;
708
709 RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, ("+free_scanqueue\n"));
710 spin_lock_bh(&scan_queue->lock);
711 spin_lock_bh(&free_queue->lock);
712
713 phead = get_list_head(scan_queue);
714 plist = phead->next;
715
716 while (plist != phead) {
717 ptemp = plist->next;
718 list_del_init(plist);
719 list_add_tail(plist, &free_queue->queue);
720 plist = ptemp;
721 }
722
723 spin_unlock_bh(&free_queue->lock);
724 spin_unlock_bh(&scan_queue->lock);
725 }
726
727 /*
728 *rtw_free_assoc_resources: the caller has to lock pmlmepriv->lock
729 */
rtw_free_assoc_resources(struct adapter * adapter)730 void rtw_free_assoc_resources(struct adapter *adapter)
731 {
732 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
733
734 spin_lock_bh(&pmlmepriv->scanned_queue.lock);
735 rtw_free_assoc_resources_locked(adapter);
736 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
737 }
738
739 /*
740 *rtw_free_assoc_resources_locked: the caller has to lock pmlmepriv->lock
741 */
rtw_free_assoc_resources_locked(struct adapter * adapter)742 void rtw_free_assoc_resources_locked(struct adapter *adapter)
743 {
744 struct wlan_network *pwlan = NULL;
745 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
746 struct sta_priv *pstapriv = &adapter->stapriv;
747 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
748
749 RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, ("+rtw_free_assoc_resources\n"));
750 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
751 ("tgt_network->network.MacAddress=%pM ssid=%s\n",
752 tgt_network->network.MacAddress, tgt_network->network.Ssid.Ssid));
753
754 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE)) {
755 struct sta_info *psta;
756
757 psta = rtw_get_stainfo(&adapter->stapriv, tgt_network->network.MacAddress);
758
759 spin_lock_bh(&(pstapriv->sta_hash_lock));
760 rtw_free_stainfo(adapter, psta);
761 spin_unlock_bh(&pstapriv->sta_hash_lock);
762 }
763
764 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE | WIFI_AP_STATE)) {
765 struct sta_info *psta;
766
767 rtw_free_all_stainfo(adapter);
768
769 psta = rtw_get_bcmc_stainfo(adapter);
770 spin_lock_bh(&(pstapriv->sta_hash_lock));
771 rtw_free_stainfo(adapter, psta);
772 spin_unlock_bh(&pstapriv->sta_hash_lock);
773
774 rtw_init_bcmc_stainfo(adapter);
775 }
776
777
778 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
779 if (pwlan)
780 pwlan->fixed = false;
781 else
782 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_free_assoc_resources:pwlan==NULL\n\n"));
783
784 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) && (adapter->stapriv.asoc_sta_count == 1)))
785 rtw_free_network_nolock(pmlmepriv, pwlan);
786
787 pmlmepriv->key_mask = 0;
788 }
789
790 /*
791 *rtw_indicate_connect: the caller has to lock pmlmepriv->lock
792 */
rtw_indicate_connect(struct adapter * padapter)793 void rtw_indicate_connect(struct adapter *padapter)
794 {
795 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
796
797 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_indicate_connect\n"));
798
799 pmlmepriv->to_join = false;
800
801 if (!check_fwstate(&padapter->mlmepriv, _FW_LINKED)) {
802 set_fwstate(pmlmepriv, _FW_LINKED);
803
804 rtw_led_control(padapter, LED_CTL_LINK);
805
806 rtw_os_indicate_connect(padapter);
807 }
808
809 pmlmepriv->to_roaming = 0;
810
811 rtw_set_scan_deny(padapter, 3000);
812
813 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("-rtw_indicate_connect: fw_state=0x%08x\n", get_fwstate(pmlmepriv)));
814 }
815
816 /*
817 *rtw_indicate_disconnect: the caller has to lock pmlmepriv->lock
818 */
rtw_indicate_disconnect(struct adapter * padapter)819 void rtw_indicate_disconnect(struct adapter *padapter)
820 {
821 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
822
823 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_indicate_disconnect\n"));
824
825 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING | WIFI_UNDER_WPS);
826
827
828 if (pmlmepriv->to_roaming > 0)
829 _clr_fwstate_(pmlmepriv, _FW_LINKED);
830
831 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) ||
832 (pmlmepriv->to_roaming <= 0)) {
833 rtw_os_indicate_disconnect(padapter);
834
835 _clr_fwstate_(pmlmepriv, _FW_LINKED);
836 rtw_led_control(padapter, LED_CTL_NO_LINK);
837 rtw_clear_scan_deny(padapter);
838 }
839
840 rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_DISCONNECT, 1);
841 }
842
rtw_indicate_scan_done(struct adapter * padapter,bool aborted)843 inline void rtw_indicate_scan_done(struct adapter *padapter, bool aborted)
844 {
845 rtw_os_indicate_scan_done(padapter, aborted);
846 }
847
rtw_scan_abort(struct adapter * adapter)848 void rtw_scan_abort(struct adapter *adapter)
849 {
850 unsigned long start;
851 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
852 struct mlme_ext_priv *pmlmeext = &(adapter->mlmeextpriv);
853
854 start = jiffies;
855 pmlmeext->scan_abort = true;
856 while (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY) &&
857 jiffies_to_msecs(jiffies - start) <= 200) {
858 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
859 break;
860 DBG_88E(FUNC_NDEV_FMT"fw_state=_FW_UNDER_SURVEY!\n", FUNC_NDEV_ARG(adapter->pnetdev));
861 msleep(20);
862 }
863 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
864 if (!adapter->bDriverStopped && !adapter->bSurpriseRemoved)
865 DBG_88E(FUNC_NDEV_FMT"waiting for scan_abort time out!\n", FUNC_NDEV_ARG(adapter->pnetdev));
866 rtw_indicate_scan_done(adapter, true);
867 }
868 pmlmeext->scan_abort = false;
869 }
870
rtw_joinbss_update_stainfo(struct adapter * padapter,struct wlan_network * pnetwork)871 static struct sta_info *rtw_joinbss_update_stainfo(struct adapter *padapter, struct wlan_network *pnetwork)
872 {
873 int i;
874 struct sta_info *bmc_sta, *psta = NULL;
875 struct recv_reorder_ctrl *preorder_ctrl;
876 struct sta_priv *pstapriv = &padapter->stapriv;
877
878 psta = rtw_get_stainfo(pstapriv, pnetwork->network.MacAddress);
879 if (psta == NULL)
880 psta = rtw_alloc_stainfo(pstapriv, pnetwork->network.MacAddress);
881
882 if (psta) { /* update ptarget_sta */
883 DBG_88E("%s\n", __func__);
884 psta->aid = pnetwork->join_res;
885 psta->mac_id = 0;
886 /* sta mode */
887 rtw_hal_set_odm_var(padapter, HAL_ODM_STA_INFO, psta, true);
888 /* security related */
889 if (padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
890 padapter->securitypriv.binstallGrpkey = false;
891 padapter->securitypriv.busetkipkey = false;
892 padapter->securitypriv.bgrpkey_handshake = false;
893 psta->ieee8021x_blocked = true;
894 psta->dot118021XPrivacy = padapter->securitypriv.dot11PrivacyAlgrthm;
895 memset((u8 *)&psta->dot118021x_UncstKey, 0, sizeof(union Keytype));
896 memset((u8 *)&psta->dot11tkiprxmickey, 0, sizeof(union Keytype));
897 memset((u8 *)&psta->dot11tkiptxmickey, 0, sizeof(union Keytype));
898 memset((u8 *)&psta->dot11txpn, 0, sizeof(union pn48));
899 memset((u8 *)&psta->dot11rxpn, 0, sizeof(union pn48));
900 }
901 /*
902 * Commented by Albert 2012/07/21
903 * When doing the WPS, the wps_ie_len won't equal to 0
904 * And the Wi-Fi driver shouldn't allow the data
905 * packet to be tramsmitted.
906 */
907 if (padapter->securitypriv.wps_ie_len != 0) {
908 psta->ieee8021x_blocked = true;
909 padapter->securitypriv.wps_ie_len = 0;
910 }
911 /* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info */
912 /* if A-MPDU Rx is enabled, resetting rx_ordering_ctrl wstart_b(indicate_seq) to default value = 0xffff */
913 /* todo: check if AP can send A-MPDU packets */
914 for (i = 0; i < 16; i++) {
915 /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
916 preorder_ctrl = &psta->recvreorder_ctrl[i];
917 preorder_ctrl->enable = false;
918 preorder_ctrl->indicate_seq = 0xffff;
919 preorder_ctrl->wend_b = 0xffff;
920 preorder_ctrl->wsize_b = 64;/* max_ampdu_sz; ex. 32(kbytes) -> wsize_b = 32 */
921 }
922 bmc_sta = rtw_get_bcmc_stainfo(padapter);
923 if (bmc_sta) {
924 for (i = 0; i < 16; i++) {
925 /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
926 preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
927 preorder_ctrl->enable = false;
928 preorder_ctrl->indicate_seq = 0xffff;
929 preorder_ctrl->wend_b = 0xffff;
930 preorder_ctrl->wsize_b = 64;/* max_ampdu_sz; ex. 32(kbytes) -> wsize_b = 32 */
931 }
932 }
933 /* misc. */
934 update_sta_info(padapter, psta);
935 }
936 return psta;
937 }
938
939 /* pnetwork: returns from rtw_joinbss_event_callback */
940 /* ptarget_wlan: found from scanned_queue */
rtw_joinbss_update_network(struct adapter * padapter,struct wlan_network * ptarget_wlan,struct wlan_network * pnetwork)941 static void rtw_joinbss_update_network(struct adapter *padapter, struct wlan_network *ptarget_wlan, struct wlan_network *pnetwork)
942 {
943 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
944 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
945
946 DBG_88E("%s\n", __func__);
947
948 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
949 ("\nfw_state:%x, BSSID:%pM\n",
950 get_fwstate(pmlmepriv), pnetwork->network.MacAddress));
951
952
953 /* why not use ptarget_wlan?? */
954 memcpy(&cur_network->network, &pnetwork->network, pnetwork->network.Length);
955 /* some IEs in pnetwork is wrong, so we should use ptarget_wlan IEs */
956 cur_network->network.IELength = ptarget_wlan->network.IELength;
957 memcpy(&cur_network->network.IEs[0], &ptarget_wlan->network.IEs[0], MAX_IE_SZ);
958
959 cur_network->aid = pnetwork->join_res;
960
961
962 rtw_set_signal_stat_timer(&padapter->recvpriv);
963 padapter->recvpriv.signal_strength = ptarget_wlan->network.PhyInfo.SignalStrength;
964 padapter->recvpriv.signal_qual = ptarget_wlan->network.PhyInfo.SignalQuality;
965 /* the ptarget_wlan->network.Rssi is raw data, we use ptarget_wlan->network.PhyInfo.SignalStrength instead (has scaled) */
966 padapter->recvpriv.rssi = translate_percentage_to_dbm(ptarget_wlan->network.PhyInfo.SignalStrength);
967 rtw_set_signal_stat_timer(&padapter->recvpriv);
968
969 /* update fw_state will clr _FW_UNDER_LINKING here indirectly */
970 switch (pnetwork->network.InfrastructureMode) {
971 case Ndis802_11Infrastructure:
972 if (pmlmepriv->fw_state&WIFI_UNDER_WPS)
973 pmlmepriv->fw_state = WIFI_STATION_STATE|WIFI_UNDER_WPS;
974 else
975 pmlmepriv->fw_state = WIFI_STATION_STATE;
976 break;
977 case Ndis802_11IBSS:
978 pmlmepriv->fw_state = WIFI_ADHOC_STATE;
979 break;
980 default:
981 pmlmepriv->fw_state = WIFI_NULL_STATE;
982 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Invalid network_mode\n"));
983 break;
984 }
985
986 rtw_update_protection(padapter, (cur_network->network.IEs) +
987 sizeof(struct ndis_802_11_fixed_ie),
988 (cur_network->network.IELength));
989 rtw_update_ht_cap(padapter, cur_network->network.IEs, cur_network->network.IELength);
990 }
991
992 /* Notes: the function could be > passive_level (the same context as Rx tasklet) */
993 /* pnetwork: returns from rtw_joinbss_event_callback */
994 /* ptarget_wlan: found from scanned_queue */
995 /* if join_res > 0, for (fw_state == WIFI_STATION_STATE), we check if "ptarget_sta" & "ptarget_wlan" exist. */
996 /* if join_res > 0, for (fw_state == WIFI_ADHOC_STATE), we only check if "ptarget_wlan" exist. */
997 /* if join_res > 0, update "cur_network->network" from "pnetwork->network" if (ptarget_wlan != NULL). */
998
rtw_joinbss_event_prehandle(struct adapter * adapter,u8 * pbuf)999 void rtw_joinbss_event_prehandle(struct adapter *adapter, u8 *pbuf)
1000 {
1001 struct sta_info *ptarget_sta = NULL, *pcur_sta = NULL;
1002 struct sta_priv *pstapriv = &adapter->stapriv;
1003 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1004 struct wlan_network *pnetwork = (struct wlan_network *)pbuf;
1005 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
1006 struct wlan_network *pcur_wlan = NULL, *ptarget_wlan = NULL;
1007 unsigned int the_same_macaddr = false;
1008
1009 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("joinbss event call back received with res=%d\n", pnetwork->join_res));
1010
1011 rtw_get_encrypt_decrypt_from_registrypriv(adapter);
1012
1013
1014 if (pmlmepriv->assoc_ssid.SsidLength == 0)
1015 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("@@@@@ joinbss event call back for Any SSid\n"));
1016 else
1017 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("@@@@@ rtw_joinbss_event_callback for SSid:%s\n", pmlmepriv->assoc_ssid.Ssid));
1018
1019 the_same_macaddr = !memcmp(pnetwork->network.MacAddress, cur_network->network.MacAddress, ETH_ALEN);
1020
1021 pnetwork->network.Length = get_wlan_bssid_ex_sz(&pnetwork->network);
1022 if (pnetwork->network.Length > sizeof(struct wlan_bssid_ex)) {
1023 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n\n ***joinbss_evt_callback return a wrong bss ***\n\n"));
1024 return;
1025 }
1026
1027 spin_lock_bh(&pmlmepriv->lock);
1028
1029 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\nrtw_joinbss_event_callback!! _enter_critical\n"));
1030
1031 if (pnetwork->join_res > 0) {
1032 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1033 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
1034 /* s1. find ptarget_wlan */
1035 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1036 if (the_same_macaddr) {
1037 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1038 } else {
1039 pcur_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1040 if (pcur_wlan)
1041 pcur_wlan->fixed = false;
1042
1043 pcur_sta = rtw_get_stainfo(pstapriv, cur_network->network.MacAddress);
1044 if (pcur_sta) {
1045 spin_lock_bh(&(pstapriv->sta_hash_lock));
1046 rtw_free_stainfo(adapter, pcur_sta);
1047 spin_unlock_bh(&pstapriv->sta_hash_lock);
1048 }
1049
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 } else {
1057 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->network.MacAddress);
1058 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1059 if (ptarget_wlan)
1060 ptarget_wlan->fixed = true;
1061 }
1062 }
1063
1064 /* s2. update cur_network */
1065 if (ptarget_wlan) {
1066 rtw_joinbss_update_network(adapter, ptarget_wlan, pnetwork);
1067 } else {
1068 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't find ptarget_wlan when joinbss_event callback\n"));
1069 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1070 goto ignore_joinbss_callback;
1071 }
1072
1073
1074 /* s3. find ptarget_sta & update ptarget_sta after update cur_network only for station mode */
1075 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1076 ptarget_sta = rtw_joinbss_update_stainfo(adapter, pnetwork);
1077 if (ptarget_sta == NULL) {
1078 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't update stainfo when joinbss_event callback\n"));
1079 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1080 goto ignore_joinbss_callback;
1081 }
1082 }
1083
1084 /* s4. indicate connect */
1085 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1086 rtw_indicate_connect(adapter);
1087 } else {
1088 /* adhoc mode will rtw_indicate_connect when rtw_stassoc_event_callback */
1089 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("adhoc mode, fw_state:%x", get_fwstate(pmlmepriv)));
1090 }
1091
1092 /* s5. Cancle assoc_timer */
1093 del_timer_sync(&pmlmepriv->assoc_timer);
1094
1095 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("Cancle assoc_timer\n"));
1096
1097 } else {
1098 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_joinbss_event_callback err: fw_state:%x", get_fwstate(pmlmepriv)));
1099 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1100 goto ignore_joinbss_callback;
1101 }
1102
1103 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1104
1105 } else if (pnetwork->join_res == -4) {
1106 rtw_reset_securitypriv(adapter);
1107 mod_timer(&pmlmepriv->assoc_timer,
1108 jiffies + msecs_to_jiffies(1));
1109
1110 if ((check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) == true) {
1111 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("fail! clear _FW_UNDER_LINKING ^^^fw_state=%x\n", get_fwstate(pmlmepriv)));
1112 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1113 }
1114 } else { /* if join_res < 0 (join fails), then try again */
1115 mod_timer(&pmlmepriv->assoc_timer,
1116 jiffies + msecs_to_jiffies(1));
1117 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1118 }
1119
1120 ignore_joinbss_callback:
1121 spin_unlock_bh(&pmlmepriv->lock);
1122 }
1123
rtw_joinbss_event_callback(struct adapter * adapter,u8 * pbuf)1124 void rtw_joinbss_event_callback(struct adapter *adapter, u8 *pbuf)
1125 {
1126 struct wlan_network *pnetwork = (struct wlan_network *)pbuf;
1127
1128 mlmeext_joinbss_event_callback(adapter, pnetwork->join_res);
1129
1130 rtw_os_xmit_schedule(adapter);
1131 }
1132
search_max_mac_id(struct adapter * padapter)1133 static u8 search_max_mac_id(struct adapter *padapter)
1134 {
1135 u8 mac_id;
1136 #if defined(CONFIG_88EU_AP_MODE)
1137 u8 aid;
1138 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
1139 struct sta_priv *pstapriv = &padapter->stapriv;
1140 #endif
1141 struct mlme_ext_priv *pmlmeext = &(padapter->mlmeextpriv);
1142 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1143
1144 #if defined(CONFIG_88EU_AP_MODE)
1145 if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
1146 for (aid = (pstapriv->max_num_sta); aid > 0; aid--) {
1147 if (pstapriv->sta_aid[aid-1] != NULL)
1148 break;
1149 }
1150 mac_id = aid + 1;
1151 } else
1152 #endif
1153 {/* adhoc id = 31~2 */
1154 for (mac_id = (NUM_STA-1); mac_id >= IBSS_START_MAC_ID; mac_id--) {
1155 if (pmlmeinfo->FW_sta_info[mac_id].status == 1)
1156 break;
1157 }
1158 }
1159 return mac_id;
1160 }
1161
1162 /* FOR AP , AD-HOC mode */
rtw_stassoc_hw_rpt(struct adapter * adapter,struct sta_info * psta)1163 void rtw_stassoc_hw_rpt(struct adapter *adapter, struct sta_info *psta)
1164 {
1165 u16 media_status;
1166 u8 macid;
1167
1168 if (psta == NULL)
1169 return;
1170
1171 macid = search_max_mac_id(adapter);
1172 rtw_hal_set_hwreg(adapter, HW_VAR_TX_RPT_MAX_MACID, (u8 *)&macid);
1173 media_status = (psta->mac_id<<8)|1; /* MACID|OPMODE:1 connect */
1174 rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status);
1175 }
1176
rtw_stassoc_event_callback(struct adapter * adapter,u8 * pbuf)1177 void rtw_stassoc_event_callback(struct adapter *adapter, u8 *pbuf)
1178 {
1179 struct sta_info *psta;
1180 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1181 struct stassoc_event *pstassoc = (struct stassoc_event *)pbuf;
1182 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
1183 struct wlan_network *ptarget_wlan = NULL;
1184
1185 if (rtw_access_ctrl(adapter, pstassoc->macaddr) == false)
1186 return;
1187
1188 #if defined(CONFIG_88EU_AP_MODE)
1189 if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
1190 psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1191 if (psta) {
1192 ap_sta_info_defer_update(adapter, psta);
1193 rtw_stassoc_hw_rpt(adapter, psta);
1194 }
1195 return;
1196 }
1197 #endif
1198 /* for AD-HOC mode */
1199 psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1200 if (psta != NULL) {
1201 /* the sta have been in sta_info_queue => do nothing */
1202 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Error: rtw_stassoc_event_callback: sta has been in sta_hash_queue\n"));
1203 return; /* between drv has received this event before and fw have not yet to set key to CAM_ENTRY) */
1204 }
1205 psta = rtw_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
1206 if (psta == NULL) {
1207 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't alloc sta_info when rtw_stassoc_event_callback\n"));
1208 return;
1209 }
1210 /* to do: init sta_info variable */
1211 psta->qos_option = 0;
1212 psta->mac_id = (uint)pstassoc->cam_id;
1213 DBG_88E("%s\n", __func__);
1214 /* for ad-hoc mode */
1215 rtw_hal_set_odm_var(adapter, HAL_ODM_STA_INFO, psta, true);
1216 rtw_stassoc_hw_rpt(adapter, psta);
1217 if (adapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X)
1218 psta->dot118021XPrivacy = adapter->securitypriv.dot11PrivacyAlgrthm;
1219 psta->ieee8021x_blocked = false;
1220 spin_lock_bh(&pmlmepriv->lock);
1221 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) ||
1222 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE))) {
1223 if (adapter->stapriv.asoc_sta_count == 2) {
1224 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1225 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1226 if (ptarget_wlan)
1227 ptarget_wlan->fixed = true;
1228 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1229 /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
1230 rtw_indicate_connect(adapter);
1231 }
1232 }
1233 spin_unlock_bh(&pmlmepriv->lock);
1234 mlmeext_sta_add_event_callback(adapter, psta);
1235 }
1236
rtw_stadel_event_callback(struct adapter * adapter,u8 * pbuf)1237 void rtw_stadel_event_callback(struct adapter *adapter, u8 *pbuf)
1238 {
1239 int mac_id = -1;
1240 struct sta_info *psta;
1241 struct wlan_network *pwlan = NULL;
1242 struct wlan_bssid_ex *pdev_network = NULL;
1243 u8 *pibss = NULL;
1244 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1245 struct stadel_event *pstadel = (struct stadel_event *)pbuf;
1246 struct sta_priv *pstapriv = &adapter->stapriv;
1247 struct wlan_network *tgt_network = &(pmlmepriv->cur_network);
1248
1249 psta = rtw_get_stainfo(&adapter->stapriv, pstadel->macaddr);
1250 if (psta)
1251 mac_id = psta->mac_id;
1252 else
1253 mac_id = pstadel->mac_id;
1254
1255 DBG_88E("%s(mac_id=%d)=%pM\n", __func__, mac_id, pstadel->macaddr);
1256
1257 if (mac_id >= 0) {
1258 u16 media_status;
1259 media_status = (mac_id<<8)|0; /* MACID|OPMODE:0 means disconnect */
1260 /* for STA, AP, ADHOC mode, report disconnect stauts to FW */
1261 rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status);
1262 }
1263
1264 if (check_fwstate(pmlmepriv, WIFI_AP_STATE))
1265 return;
1266
1267 mlmeext_sta_del_event_callback(adapter);
1268
1269 spin_lock_bh(&pmlmepriv->lock);
1270
1271 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
1272 if (pmlmepriv->to_roaming > 0)
1273 pmlmepriv->to_roaming--; /* this stadel_event is caused by roaming, decrease to_roaming */
1274 else if (pmlmepriv->to_roaming == 0)
1275 pmlmepriv->to_roaming = adapter->registrypriv.max_roaming_times;
1276
1277 if (*((unsigned short *)(pstadel->rsvd)) != WLAN_REASON_EXPIRATION_CHK)
1278 pmlmepriv->to_roaming = 0; /* don't roam */
1279
1280 rtw_free_uc_swdec_pending_queue(adapter);
1281
1282 rtw_free_assoc_resources(adapter);
1283 rtw_indicate_disconnect(adapter);
1284 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1285 /* remove the network entry in scanned_queue */
1286 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
1287 if (pwlan) {
1288 pwlan->fixed = false;
1289 rtw_free_network_nolock(pmlmepriv, pwlan);
1290 }
1291 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1292 _rtw_roaming(adapter, tgt_network);
1293 }
1294 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
1295 check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1296 spin_lock_bh(&(pstapriv->sta_hash_lock));
1297 rtw_free_stainfo(adapter, psta);
1298 spin_unlock_bh(&pstapriv->sta_hash_lock);
1299
1300 if (adapter->stapriv.asoc_sta_count == 1) { /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
1301 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1302 /* free old ibss network */
1303 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
1304 if (pwlan) {
1305 pwlan->fixed = false;
1306 rtw_free_network_nolock(pmlmepriv, pwlan);
1307 }
1308 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1309 /* re-create ibss */
1310 pdev_network = &(adapter->registrypriv.dev_network);
1311 pibss = adapter->registrypriv.dev_network.MacAddress;
1312
1313 memcpy(pdev_network, &tgt_network->network, get_wlan_bssid_ex_sz(&tgt_network->network));
1314
1315 memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
1316
1317 rtw_update_registrypriv_dev_network(adapter);
1318
1319 rtw_generate_random_ibss(pibss);
1320
1321 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1322 set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
1323 _clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
1324 }
1325
1326 if (rtw_createbss_cmd(adapter) != _SUCCESS)
1327 RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_err_, ("***Error=>stadel_event_callback: rtw_createbss_cmd status FAIL***\n "));
1328 }
1329 }
1330 spin_unlock_bh(&pmlmepriv->lock);
1331 }
1332
rtw_cpwm_event_callback(struct adapter * padapter,u8 * pbuf)1333 void rtw_cpwm_event_callback(struct adapter *padapter, u8 *pbuf)
1334 {
1335 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_cpwm_event_callback !!!\n"));
1336 }
1337
1338 /*
1339 * _rtw_join_timeout_handler - Timeout/faliure handler for CMD JoinBss
1340 * @adapter: pointer to struct adapter structure
1341 */
_rtw_join_timeout_handler(unsigned long data)1342 void _rtw_join_timeout_handler (unsigned long data)
1343 {
1344 struct adapter *adapter = (struct adapter *)data;
1345 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1346 int do_join_r;
1347
1348 DBG_88E("%s, fw_state=%x\n", __func__, get_fwstate(pmlmepriv));
1349
1350 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1351 return;
1352
1353
1354 spin_lock_bh(&pmlmepriv->lock);
1355
1356 if (pmlmepriv->to_roaming > 0) { /* join timeout caused by roaming */
1357 while (1) {
1358 pmlmepriv->to_roaming--;
1359 if (pmlmepriv->to_roaming != 0) { /* try another , */
1360 DBG_88E("%s try another roaming\n", __func__);
1361 do_join_r = rtw_do_join(adapter);
1362 if (_SUCCESS != do_join_r) {
1363 DBG_88E("%s roaming do_join return %d\n", __func__, do_join_r);
1364 continue;
1365 }
1366 break;
1367 } else {
1368 DBG_88E("%s We've try roaming but fail\n", __func__);
1369 rtw_indicate_disconnect(adapter);
1370 break;
1371 }
1372 }
1373 } else {
1374 rtw_indicate_disconnect(adapter);
1375 free_scanqueue(pmlmepriv);/* */
1376 }
1377 spin_unlock_bh(&pmlmepriv->lock);
1378 }
1379
1380 /*
1381 * rtw_scan_timeout_handler - Timeout/Faliure handler for CMD SiteSurvey
1382 * @adapter: pointer to struct adapter structure
1383 */
rtw_scan_timeout_handler(unsigned long data)1384 void rtw_scan_timeout_handler (unsigned long data)
1385 {
1386 struct adapter *adapter = (struct adapter *)data;
1387 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1388
1389 DBG_88E(FUNC_ADPT_FMT" fw_state=%x\n", FUNC_ADPT_ARG(adapter), get_fwstate(pmlmepriv));
1390 spin_lock_bh(&pmlmepriv->lock);
1391 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
1392 spin_unlock_bh(&pmlmepriv->lock);
1393 rtw_indicate_scan_done(adapter, true);
1394 }
1395
rtw_auto_scan_handler(struct adapter * padapter)1396 static void rtw_auto_scan_handler(struct adapter *padapter)
1397 {
1398 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1399
1400 /* auto site survey per 60sec */
1401 if (pmlmepriv->scan_interval > 0) {
1402 pmlmepriv->scan_interval--;
1403 if (pmlmepriv->scan_interval == 0) {
1404 DBG_88E("%s\n", __func__);
1405 rtw_set_802_11_bssid_list_scan(padapter, NULL, 0);
1406 pmlmepriv->scan_interval = SCAN_INTERVAL;/* 30*2 sec = 60sec */
1407 }
1408 }
1409 }
1410
rtw_dynamic_check_timer_handlder(unsigned long data)1411 void rtw_dynamic_check_timer_handlder(unsigned long data)
1412 {
1413 struct adapter *adapter = (struct adapter *)data;
1414 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1415
1416 if (!adapter)
1417 return;
1418 if (!adapter->hw_init_completed)
1419 goto exit;
1420 if ((adapter->bDriverStopped) || (adapter->bSurpriseRemoved))
1421 goto exit;
1422 if (adapter->net_closed)
1423 goto exit;
1424 rtw_dynamic_chk_wk_cmd(adapter);
1425
1426 if (pregistrypriv->wifi_spec == 1) {
1427 /* auto site survey */
1428 rtw_auto_scan_handler(adapter);
1429 }
1430 exit:
1431 mod_timer(&adapter->mlmepriv.dynamic_chk_timer,
1432 jiffies + msecs_to_jiffies(2000));
1433 }
1434
1435 #define RTW_SCAN_RESULT_EXPIRE 2000
1436
1437 /*
1438 * Select a new join candidate from the original @param candidate and @param competitor
1439 * @return true: candidate is updated
1440 * @return false: candidate is not updated
1441 */
rtw_check_join_candidate(struct mlme_priv * pmlmepriv,struct wlan_network ** candidate,struct wlan_network * competitor)1442 static int rtw_check_join_candidate(struct mlme_priv *pmlmepriv
1443 , struct wlan_network **candidate, struct wlan_network *competitor)
1444 {
1445 int updated = false;
1446 unsigned long since_scan;
1447 struct adapter *adapter = container_of(pmlmepriv, struct adapter, mlmepriv);
1448
1449
1450 /* check bssid, if needed */
1451 if (pmlmepriv->assoc_by_bssid) {
1452 if (memcmp(competitor->network.MacAddress, pmlmepriv->assoc_bssid, ETH_ALEN))
1453 goto exit;
1454 }
1455
1456 /* check ssid, if needed */
1457 if (pmlmepriv->assoc_ssid.SsidLength) {
1458 if (competitor->network.Ssid.SsidLength != pmlmepriv->assoc_ssid.SsidLength ||
1459 !memcmp(competitor->network.Ssid.Ssid, pmlmepriv->assoc_ssid.Ssid, pmlmepriv->assoc_ssid.SsidLength) == false)
1460 goto exit;
1461 }
1462
1463 if (rtw_is_desired_network(adapter, competitor) == false)
1464 goto exit;
1465
1466 if (pmlmepriv->to_roaming) {
1467 since_scan = jiffies - competitor->last_scanned;
1468 if (jiffies_to_msecs(since_scan) >= RTW_SCAN_RESULT_EXPIRE ||
1469 is_same_ess(&competitor->network, &pmlmepriv->cur_network.network) == false)
1470 goto exit;
1471 }
1472
1473 if (*candidate == NULL || (*candidate)->network.Rssi < competitor->network.Rssi) {
1474 *candidate = competitor;
1475 updated = true;
1476 }
1477 if (updated) {
1478 DBG_88E("[by_bssid:%u][assoc_ssid:%s]new candidate: %s(%pM rssi:%d\n",
1479 pmlmepriv->assoc_by_bssid,
1480 pmlmepriv->assoc_ssid.Ssid,
1481 (*candidate)->network.Ssid.Ssid,
1482 (*candidate)->network.MacAddress,
1483 (int)(*candidate)->network.Rssi);
1484 DBG_88E("[to_roaming:%u]\n", pmlmepriv->to_roaming);
1485 }
1486
1487 exit:
1488 return updated;
1489 }
1490
1491 /*
1492 Calling context:
1493 The caller of the sub-routine will be in critical section...
1494 The caller must hold the following spinlock
1495 pmlmepriv->lock
1496 */
1497
rtw_select_and_join_from_scanned_queue(struct mlme_priv * pmlmepriv)1498 int rtw_select_and_join_from_scanned_queue(struct mlme_priv *pmlmepriv)
1499 {
1500 int ret;
1501 struct list_head *phead;
1502 struct adapter *adapter;
1503 struct __queue *queue = &(pmlmepriv->scanned_queue);
1504 struct wlan_network *pnetwork = NULL;
1505 struct wlan_network *candidate = NULL;
1506 u8 supp_ant_div = false;
1507
1508 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1509 phead = get_list_head(queue);
1510 adapter = (struct adapter *)pmlmepriv->nic_hdl;
1511 pmlmepriv->pscanned = phead->next;
1512 while (phead != pmlmepriv->pscanned) {
1513 pnetwork = container_of(pmlmepriv->pscanned, struct wlan_network, list);
1514 if (pnetwork == NULL) {
1515 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s return _FAIL:(pnetwork==NULL)\n", __func__));
1516 ret = _FAIL;
1517 goto exit;
1518 }
1519 pmlmepriv->pscanned = pmlmepriv->pscanned->next;
1520 rtw_check_join_candidate(pmlmepriv, &candidate, pnetwork);
1521 }
1522 if (candidate == NULL) {
1523 DBG_88E("%s: return _FAIL(candidate==NULL)\n", __func__);
1524 ret = _FAIL;
1525 goto exit;
1526 } else {
1527 DBG_88E("%s: candidate: %s(%pM ch:%u)\n", __func__,
1528 candidate->network.Ssid.Ssid, candidate->network.MacAddress,
1529 candidate->network.Configuration.DSConfig);
1530 }
1531
1532
1533 /* check for situation of _FW_LINKED */
1534 if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
1535 DBG_88E("%s: _FW_LINKED while ask_for_joinbss!!!\n", __func__);
1536
1537 rtw_disassoc_cmd(adapter, 0, true);
1538 rtw_indicate_disconnect(adapter);
1539 rtw_free_assoc_resources_locked(adapter);
1540 }
1541
1542 rtw_hal_get_def_var(adapter, HAL_DEF_IS_SUPPORT_ANT_DIV, &(supp_ant_div));
1543 if (supp_ant_div) {
1544 u8 cur_ant;
1545 rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(cur_ant));
1546 DBG_88E("#### Opt_Ant_(%s), cur_Ant(%s)\n",
1547 (2 == candidate->network.PhyInfo.Optimum_antenna) ? "A" : "B",
1548 (2 == cur_ant) ? "A" : "B"
1549 );
1550 }
1551
1552 ret = rtw_joinbss_cmd(adapter, candidate);
1553
1554 exit:
1555 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1556 return ret;
1557 }
1558
rtw_set_auth(struct adapter * adapter,struct security_priv * psecuritypriv)1559 int rtw_set_auth(struct adapter *adapter, struct security_priv *psecuritypriv)
1560 {
1561 struct cmd_obj *pcmd;
1562 struct setauth_parm *psetauthparm;
1563 struct cmd_priv *pcmdpriv = &(adapter->cmdpriv);
1564 int res = _SUCCESS;
1565
1566 pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
1567 if (!pcmd) {
1568 res = _FAIL; /* try again */
1569 goto exit;
1570 }
1571
1572 psetauthparm = kzalloc(sizeof(struct setauth_parm), GFP_KERNEL);
1573 if (!psetauthparm) {
1574 kfree(pcmd);
1575 res = _FAIL;
1576 goto exit;
1577 }
1578 memset(psetauthparm, 0, sizeof(struct setauth_parm));
1579 psetauthparm->mode = (unsigned char)psecuritypriv->dot11AuthAlgrthm;
1580 pcmd->cmdcode = _SetAuth_CMD_;
1581 pcmd->parmbuf = (unsigned char *)psetauthparm;
1582 pcmd->cmdsz = (sizeof(struct setauth_parm));
1583 pcmd->rsp = NULL;
1584 pcmd->rspsz = 0;
1585 INIT_LIST_HEAD(&pcmd->list);
1586 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1587 ("after enqueue set_auth_cmd, auth_mode=%x\n",
1588 psecuritypriv->dot11AuthAlgrthm));
1589 res = rtw_enqueue_cmd(pcmdpriv, pcmd);
1590 exit:
1591 return res;
1592 }
1593
rtw_set_key(struct adapter * adapter,struct security_priv * psecuritypriv,int keyid,u8 set_tx)1594 int rtw_set_key(struct adapter *adapter, struct security_priv *psecuritypriv, int keyid, u8 set_tx)
1595 {
1596 u8 keylen;
1597 struct cmd_obj *pcmd;
1598 struct setkey_parm *psetkeyparm;
1599 struct cmd_priv *pcmdpriv = &(adapter->cmdpriv);
1600 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1601 int res = _SUCCESS;
1602
1603 pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
1604 if (!pcmd)
1605 return _FAIL; /* try again */
1606
1607 psetkeyparm = kzalloc(sizeof(struct setkey_parm), GFP_KERNEL);
1608 if (!psetkeyparm) {
1609 res = _FAIL;
1610 goto err_free_cmd;
1611 }
1612
1613 memset(psetkeyparm, 0, sizeof(struct setkey_parm));
1614
1615 if (psecuritypriv->dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
1616 psetkeyparm->algorithm = (unsigned char)psecuritypriv->dot118021XGrpPrivacy;
1617 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1618 ("\n rtw_set_key: psetkeyparm->algorithm=(unsigned char)psecuritypriv->dot118021XGrpPrivacy=%d\n",
1619 psetkeyparm->algorithm));
1620 } else {
1621 psetkeyparm->algorithm = (u8)psecuritypriv->dot11PrivacyAlgrthm;
1622 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1623 ("\n rtw_set_key: psetkeyparm->algorithm=(u8)psecuritypriv->dot11PrivacyAlgrthm=%d\n",
1624 psetkeyparm->algorithm));
1625 }
1626 psetkeyparm->keyid = (u8)keyid;/* 0~3 */
1627 psetkeyparm->set_tx = set_tx;
1628 pmlmepriv->key_mask |= BIT(psetkeyparm->keyid);
1629 DBG_88E("==> rtw_set_key algorithm(%x), keyid(%x), key_mask(%x)\n",
1630 psetkeyparm->algorithm, psetkeyparm->keyid, pmlmepriv->key_mask);
1631 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1632 ("\n rtw_set_key: psetkeyparm->algorithm=%d psetkeyparm->keyid=(u8)keyid=%d\n",
1633 psetkeyparm->algorithm, keyid));
1634
1635 switch (psetkeyparm->algorithm) {
1636 case _WEP40_:
1637 keylen = 5;
1638 memcpy(&(psetkeyparm->key[0]), &(psecuritypriv->dot11DefKey[keyid].skey[0]), keylen);
1639 break;
1640 case _WEP104_:
1641 keylen = 13;
1642 memcpy(&(psetkeyparm->key[0]), &(psecuritypriv->dot11DefKey[keyid].skey[0]), keylen);
1643 break;
1644 case _TKIP_:
1645 keylen = 16;
1646 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
1647 psetkeyparm->grpkey = 1;
1648 break;
1649 case _AES_:
1650 keylen = 16;
1651 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
1652 psetkeyparm->grpkey = 1;
1653 break;
1654 default:
1655 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1656 ("\n rtw_set_key:psecuritypriv->dot11PrivacyAlgrthm=%x (must be 1 or 2 or 4 or 5)\n",
1657 psecuritypriv->dot11PrivacyAlgrthm));
1658 res = _FAIL;
1659 goto err_free_parm;
1660 }
1661 pcmd->cmdcode = _SetKey_CMD_;
1662 pcmd->parmbuf = (u8 *)psetkeyparm;
1663 pcmd->cmdsz = (sizeof(struct setkey_parm));
1664 pcmd->rsp = NULL;
1665 pcmd->rspsz = 0;
1666 INIT_LIST_HEAD(&pcmd->list);
1667 res = rtw_enqueue_cmd(pcmdpriv, pcmd);
1668 return res;
1669
1670 err_free_parm:
1671 kfree(psetkeyparm);
1672 err_free_cmd:
1673 kfree(pcmd);
1674 return res;
1675 }
1676
1677 /* 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)1678 int rtw_restruct_wmm_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len, uint initial_out_len)
1679 {
1680 unsigned int ielength = 0;
1681 unsigned int i, j;
1682
1683 /* i = 12; after the fixed IE */
1684 for (i = 12; i < in_len; i += (in_ie[i + 1] + 2) /* to the next IE element */) {
1685 ielength = initial_out_len;
1686
1687 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) {
1688 /* WMM element ID and OUI */
1689 /* Append WMM IE to the last index of out_ie */
1690
1691 for (j = i; j < i + 9; j++) {
1692 out_ie[ielength] = in_ie[j];
1693 ielength++;
1694 }
1695 out_ie[initial_out_len + 1] = 0x07;
1696 out_ie[initial_out_len + 6] = 0x00;
1697 out_ie[initial_out_len + 8] = 0x00;
1698 break;
1699 }
1700 }
1701 return ielength;
1702 }
1703
1704 /*
1705 * Ported from 8185: IsInPreAuthKeyList().
1706 * (Renamed from SecIsInPreAuthKeyList(), 2006-10-13.)
1707 * Added by Annie, 2006-05-07.
1708 * Search by BSSID,
1709 * Return Value:
1710 * -1 :if there is no pre-auth key in the table
1711 * >= 0 :if there is pre-auth key, and return the entry id
1712 */
SecIsInPMKIDList(struct adapter * Adapter,u8 * bssid)1713 static int SecIsInPMKIDList(struct adapter *Adapter, u8 *bssid)
1714 {
1715 struct security_priv *psecuritypriv = &Adapter->securitypriv;
1716 int i = 0;
1717
1718 do {
1719 if ((psecuritypriv->PMKIDList[i].bUsed) &&
1720 (!memcmp(psecuritypriv->PMKIDList[i].Bssid, bssid, ETH_ALEN))) {
1721 break;
1722 } else {
1723 i++;
1724 /* continue; */
1725 }
1726
1727 } while (i < NUM_PMKID_CACHE);
1728
1729 if (i == NUM_PMKID_CACHE)
1730 i = -1;/* Could not find. */
1731
1732 return i;
1733 }
1734
1735 /* */
1736 /* Check the RSN IE length */
1737 /* If the RSN IE length <= 20, the RSN IE didn't include the PMKID information */
1738 /* 0-11th element in the array are the fixed IE */
1739 /* 12th element in the array is the IE */
1740 /* 13th element in the array is the IE length */
1741 /* */
1742
rtw_append_pmkid(struct adapter * Adapter,int iEntry,u8 * ie,uint ie_len)1743 static int rtw_append_pmkid(struct adapter *Adapter, int iEntry, u8 *ie, uint ie_len)
1744 {
1745 struct security_priv *psecuritypriv = &Adapter->securitypriv;
1746
1747 if (ie[13] <= 20) {
1748 /* The RSN IE didn't include the PMK ID, append the PMK information */
1749 ie[ie_len] = 1;
1750 ie_len++;
1751 ie[ie_len] = 0; /* PMKID count = 0x0100 */
1752 ie_len++;
1753 memcpy(&ie[ie_len], &psecuritypriv->PMKIDList[iEntry].PMKID, 16);
1754
1755 ie_len += 16;
1756 ie[13] += 18;/* PMKID length = 2+16 */
1757 }
1758 return ie_len;
1759 }
1760
rtw_restruct_sec_ie(struct adapter * adapter,u8 * in_ie,u8 * out_ie,uint in_len)1761 int rtw_restruct_sec_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len)
1762 {
1763 u8 authmode;
1764 uint ielength;
1765 int iEntry;
1766
1767 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1768 struct security_priv *psecuritypriv = &adapter->securitypriv;
1769 uint ndisauthmode = psecuritypriv->ndisauthtype;
1770 uint ndissecuritytype = psecuritypriv->ndisencryptstatus;
1771
1772 RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_,
1773 ("+rtw_restruct_sec_ie: ndisauthmode=%d ndissecuritytype=%d\n",
1774 ndisauthmode, ndissecuritytype));
1775
1776 /* copy fixed ie only */
1777 memcpy(out_ie, in_ie, 12);
1778 ielength = 12;
1779 if ((ndisauthmode == Ndis802_11AuthModeWPA) ||
1780 (ndisauthmode == Ndis802_11AuthModeWPAPSK))
1781 authmode = _WPA_IE_ID_;
1782 if ((ndisauthmode == Ndis802_11AuthModeWPA2) ||
1783 (ndisauthmode == Ndis802_11AuthModeWPA2PSK))
1784 authmode = _WPA2_IE_ID_;
1785
1786 if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
1787 memcpy(out_ie+ielength, psecuritypriv->wps_ie, psecuritypriv->wps_ie_len);
1788
1789 ielength += psecuritypriv->wps_ie_len;
1790 } else if ((authmode == _WPA_IE_ID_) || (authmode == _WPA2_IE_ID_)) {
1791 /* copy RSN or SSN */
1792 memcpy(&out_ie[ielength], &psecuritypriv->supplicant_ie[0], psecuritypriv->supplicant_ie[1]+2);
1793 ielength += psecuritypriv->supplicant_ie[1]+2;
1794 rtw_report_sec_ie(adapter, authmode, psecuritypriv->supplicant_ie);
1795 }
1796
1797 iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
1798 if (iEntry < 0) {
1799 return ielength;
1800 } else {
1801 if (authmode == _WPA2_IE_ID_)
1802 ielength = rtw_append_pmkid(adapter, iEntry, out_ie, ielength);
1803 }
1804 return ielength;
1805 }
1806
rtw_init_registrypriv_dev_network(struct adapter * adapter)1807 void rtw_init_registrypriv_dev_network(struct adapter *adapter)
1808 {
1809 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1810 struct eeprom_priv *peepriv = &adapter->eeprompriv;
1811 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1812 u8 *myhwaddr = myid(peepriv);
1813
1814 memcpy(pdev_network->MacAddress, myhwaddr, ETH_ALEN);
1815
1816 memcpy(&pdev_network->Ssid, &pregistrypriv->ssid, sizeof(struct ndis_802_11_ssid));
1817
1818 pdev_network->Configuration.Length = sizeof(struct ndis_802_11_config);
1819 pdev_network->Configuration.BeaconPeriod = 100;
1820 pdev_network->Configuration.FHConfig.Length = 0;
1821 pdev_network->Configuration.FHConfig.HopPattern = 0;
1822 pdev_network->Configuration.FHConfig.HopSet = 0;
1823 pdev_network->Configuration.FHConfig.DwellTime = 0;
1824 }
1825
rtw_update_registrypriv_dev_network(struct adapter * adapter)1826 void rtw_update_registrypriv_dev_network(struct adapter *adapter)
1827 {
1828 int sz = 0;
1829 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1830 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1831 struct security_priv *psecuritypriv = &adapter->securitypriv;
1832 struct wlan_network *cur_network = &adapter->mlmepriv.cur_network;
1833
1834 pdev_network->Privacy = (psecuritypriv->dot11PrivacyAlgrthm > 0 ? 1 : 0); /* adhoc no 802.1x */
1835
1836 pdev_network->Rssi = 0;
1837
1838 switch (pregistrypriv->wireless_mode) {
1839 case WIRELESS_11B:
1840 pdev_network->NetworkTypeInUse = (Ndis802_11DS);
1841 break;
1842 case WIRELESS_11G:
1843 case WIRELESS_11BG:
1844 case WIRELESS_11_24N:
1845 case WIRELESS_11G_24N:
1846 case WIRELESS_11BG_24N:
1847 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM24);
1848 break;
1849 case WIRELESS_11A:
1850 case WIRELESS_11A_5N:
1851 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM5);
1852 break;
1853 case WIRELESS_11ABGN:
1854 if (pregistrypriv->channel > 14)
1855 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM5);
1856 else
1857 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM24);
1858 break;
1859 default:
1860 /* TODO */
1861 break;
1862 }
1863
1864 pdev_network->Configuration.DSConfig = (pregistrypriv->channel);
1865 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
1866 ("pregistrypriv->channel=%d, pdev_network->Configuration.DSConfig=0x%x\n",
1867 pregistrypriv->channel, pdev_network->Configuration.DSConfig));
1868
1869 if (cur_network->network.InfrastructureMode == Ndis802_11IBSS)
1870 pdev_network->Configuration.ATIMWindow = (0);
1871
1872 pdev_network->InfrastructureMode = (cur_network->network.InfrastructureMode);
1873
1874 /* 1. Supported rates */
1875 /* 2. IE */
1876
1877 sz = rtw_generate_ie(pregistrypriv);
1878 pdev_network->IELength = sz;
1879 pdev_network->Length = get_wlan_bssid_ex_sz((struct wlan_bssid_ex *)pdev_network);
1880
1881 /* notes: translate IELength & Length after assign the Length to cmdsz in createbss_cmd(); */
1882 /* pdev_network->IELength = cpu_to_le32(sz); */
1883 }
1884
rtw_get_encrypt_decrypt_from_registrypriv(struct adapter * adapter)1885 void rtw_get_encrypt_decrypt_from_registrypriv(struct adapter *adapter)
1886 {
1887 }
1888
1889 /* the function is at passive_level */
rtw_joinbss_reset(struct adapter * padapter)1890 void rtw_joinbss_reset(struct adapter *padapter)
1891 {
1892 u8 threshold;
1893 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1894 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1895
1896 /* todo: if you want to do something io/reg/hw setting before join_bss, please add code here */
1897 pmlmepriv->num_FortyMHzIntolerant = 0;
1898
1899 pmlmepriv->num_sta_no_ht = 0;
1900
1901 phtpriv->ampdu_enable = false;/* reset to disabled */
1902
1903 /* TH = 1 => means that invalidate usb rx aggregation */
1904 /* TH = 0 => means that validate usb rx aggregation, use init value. */
1905 if (phtpriv->ht_option) {
1906 if (padapter->registrypriv.wifi_spec == 1)
1907 threshold = 1;
1908 else
1909 threshold = 0;
1910 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
1911 } else {
1912 threshold = 1;
1913 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
1914 }
1915 }
1916
1917 /* the function is >= passive_level */
rtw_restructure_ht_ie(struct adapter * padapter,u8 * in_ie,u8 * out_ie,uint in_len,uint * pout_len)1918 unsigned int rtw_restructure_ht_ie(struct adapter *padapter, u8 *in_ie, u8 *out_ie, uint in_len, uint *pout_len)
1919 {
1920 u32 ielen, out_len;
1921 enum ht_cap_ampdu_factor max_rx_ampdu_factor;
1922 unsigned char *p;
1923 unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
1924 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1925 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
1926 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1927 u32 rx_packet_offset, max_recvbuf_sz;
1928
1929
1930 phtpriv->ht_option = false;
1931
1932 p = rtw_get_ie(in_ie+12, _HT_CAPABILITY_IE_, &ielen, in_len-12);
1933
1934 if (p && ielen > 0) {
1935 struct ieee80211_ht_cap ht_cap;
1936
1937 if (pqospriv->qos_option == 0) {
1938 out_len = *pout_len;
1939 rtw_set_ie(out_ie+out_len, _VENDOR_SPECIFIC_IE_,
1940 _WMM_IE_Length_, WMM_IE, pout_len);
1941
1942 pqospriv->qos_option = 1;
1943 }
1944
1945 out_len = *pout_len;
1946
1947 memset(&ht_cap, 0, sizeof(struct ieee80211_ht_cap));
1948
1949 ht_cap.cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH |
1950 IEEE80211_HT_CAP_SGI_20 |
1951 IEEE80211_HT_CAP_SGI_40 |
1952 IEEE80211_HT_CAP_TX_STBC |
1953 IEEE80211_HT_CAP_DSSSCCK40);
1954
1955 rtw_hal_get_def_var(padapter, HAL_DEF_RX_PACKET_OFFSET, &rx_packet_offset);
1956 rtw_hal_get_def_var(padapter, HAL_DEF_MAX_RECVBUF_SZ, &max_recvbuf_sz);
1957
1958 /*
1959 ampdu_params_info [1:0]:Max AMPDU Len => 0:8k , 1:16k, 2:32k, 3:64k
1960 ampdu_params_info [4:2]:Min MPDU Start Spacing
1961 */
1962
1963 rtw_hal_get_def_var(padapter, HW_VAR_MAX_RX_AMPDU_FACTOR, &max_rx_ampdu_factor);
1964 ht_cap.ampdu_params_info = max_rx_ampdu_factor & 0x03;
1965
1966 if (padapter->securitypriv.dot11PrivacyAlgrthm == _AES_)
1967 ht_cap.ampdu_params_info |= IEEE80211_HT_CAP_AMPDU_DENSITY & (0x07 << 2);
1968 else
1969 ht_cap.ampdu_params_info |= IEEE80211_HT_CAP_AMPDU_DENSITY & 0x00;
1970
1971 rtw_set_ie(out_ie+out_len, _HT_CAPABILITY_IE_,
1972 sizeof(struct ieee80211_ht_cap),
1973 (unsigned char *)&ht_cap, pout_len);
1974
1975 phtpriv->ht_option = true;
1976
1977 p = rtw_get_ie(in_ie+12, _HT_ADD_INFO_IE_, &ielen, in_len-12);
1978 if (p && (ielen == sizeof(struct ieee80211_ht_addt_info))) {
1979 out_len = *pout_len;
1980 rtw_set_ie(out_ie+out_len, _HT_ADD_INFO_IE_, ielen, p+2, pout_len);
1981 }
1982 }
1983 return phtpriv->ht_option;
1984 }
1985
1986 /* the function is > passive_level (in critical_section) */
rtw_update_ht_cap(struct adapter * padapter,u8 * pie,uint ie_len)1987 void rtw_update_ht_cap(struct adapter *padapter, u8 *pie, uint ie_len)
1988 {
1989 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1990 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1991 struct registry_priv *pregistrypriv = &padapter->registrypriv;
1992 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
1993 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1994
1995 if (!phtpriv->ht_option)
1996 return;
1997
1998 if ((!pmlmeinfo->HT_info_enable) || (!pmlmeinfo->HT_caps_enable))
1999 return;
2000
2001 DBG_88E("+rtw_update_ht_cap()\n");
2002
2003 /* maybe needs check if ap supports rx ampdu. */
2004 if ((!phtpriv->ampdu_enable) && (pregistrypriv->ampdu_enable == 1)) {
2005 if (pregistrypriv->wifi_spec == 1)
2006 phtpriv->ampdu_enable = false;
2007 else
2008 phtpriv->ampdu_enable = true;
2009 } else if (pregistrypriv->ampdu_enable == 2) {
2010 phtpriv->ampdu_enable = true;
2011 }
2012
2013 /* update cur_bwmode & cur_ch_offset */
2014 if ((pregistrypriv->cbw40_enable) &&
2015 (le16_to_cpu(pmlmeinfo->HT_caps.cap_info) & BIT(1)) &&
2016 (pmlmeinfo->HT_info.infos[0] & BIT(2))) {
2017 int i;
2018 u8 rf_type;
2019
2020 rtw_hal_get_hwreg(padapter, HW_VAR_RF_TYPE, (u8 *)(&rf_type));
2021
2022 /* update the MCS rates */
2023 for (i = 0; i < 16; i++) {
2024 if ((rf_type == RF_1T1R) || (rf_type == RF_1T2R))
2025 ((u8 *)&pmlmeinfo->HT_caps.mcs)[i] &= MCS_rate_1R[i];
2026 else
2027 ((u8 *)&pmlmeinfo->HT_caps.mcs)[i] &= MCS_rate_2R[i];
2028 }
2029 /* switch to the 40M Hz mode according to the AP */
2030 pmlmeext->cur_bwmode = HT_CHANNEL_WIDTH_40;
2031 switch ((pmlmeinfo->HT_info.infos[0] & 0x3)) {
2032 case HT_EXTCHNL_OFFSET_UPPER:
2033 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_LOWER;
2034 break;
2035 case HT_EXTCHNL_OFFSET_LOWER:
2036 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_UPPER;
2037 break;
2038 default:
2039 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
2040 break;
2041 }
2042 }
2043
2044 /* Config SM Power Save setting */
2045 pmlmeinfo->SM_PS = (le16_to_cpu(pmlmeinfo->HT_caps.cap_info) & 0x0C) >> 2;
2046 if (pmlmeinfo->SM_PS == WLAN_HT_CAP_SM_PS_STATIC)
2047 DBG_88E("%s(): WLAN_HT_CAP_SM_PS_STATIC\n", __func__);
2048
2049 /* Config current HT Protection mode. */
2050 pmlmeinfo->HT_protection = pmlmeinfo->HT_info.infos[1] & 0x3;
2051 }
2052
rtw_issue_addbareq_cmd(struct adapter * padapter,struct xmit_frame * pxmitframe)2053 void rtw_issue_addbareq_cmd(struct adapter *padapter, struct xmit_frame *pxmitframe)
2054 {
2055 u8 issued;
2056 int priority;
2057 struct sta_info *psta = NULL;
2058 struct ht_priv *phtpriv;
2059 struct pkt_attrib *pattrib = &pxmitframe->attrib;
2060 s32 bmcst = IS_MCAST(pattrib->ra);
2061
2062 if (bmcst || (padapter->mlmepriv.LinkDetectInfo.NumTxOkInPeriod < 100))
2063 return;
2064
2065 priority = pattrib->priority;
2066
2067 if (pattrib->psta)
2068 psta = pattrib->psta;
2069 else
2070 psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
2071
2072 if (psta == NULL)
2073 return;
2074
2075 phtpriv = &psta->htpriv;
2076
2077 if ((phtpriv->ht_option) && (phtpriv->ampdu_enable)) {
2078 issued = (phtpriv->agg_enable_bitmap>>priority)&0x1;
2079 issued |= (phtpriv->candidate_tid_bitmap>>priority)&0x1;
2080
2081 if (0 == issued) {
2082 DBG_88E("rtw_issue_addbareq_cmd, p=%d\n", priority);
2083 psta->htpriv.candidate_tid_bitmap |= BIT((u8)priority);
2084 rtw_addbareq_cmd(padapter, (u8)priority, pattrib->ra);
2085 }
2086 }
2087 }
2088
rtw_roaming(struct adapter * padapter,struct wlan_network * tgt_network)2089 void rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
2090 {
2091 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2092
2093 spin_lock_bh(&pmlmepriv->lock);
2094 _rtw_roaming(padapter, tgt_network);
2095 spin_unlock_bh(&pmlmepriv->lock);
2096 }
_rtw_roaming(struct adapter * padapter,struct wlan_network * tgt_network)2097 void _rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
2098 {
2099 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2100 int do_join_r;
2101
2102 struct wlan_network *pnetwork;
2103
2104 if (tgt_network != NULL)
2105 pnetwork = tgt_network;
2106 else
2107 pnetwork = &pmlmepriv->cur_network;
2108
2109 if (0 < pmlmepriv->to_roaming) {
2110 DBG_88E("roaming from %s(%pM length:%d\n",
2111 pnetwork->network.Ssid.Ssid, pnetwork->network.MacAddress,
2112 pnetwork->network.Ssid.SsidLength);
2113 memcpy(&pmlmepriv->assoc_ssid, &pnetwork->network.Ssid, sizeof(struct ndis_802_11_ssid));
2114
2115 pmlmepriv->assoc_by_bssid = false;
2116
2117 while (1) {
2118 do_join_r = rtw_do_join(padapter);
2119 if (_SUCCESS == do_join_r) {
2120 break;
2121 } else {
2122 DBG_88E("roaming do_join return %d\n", do_join_r);
2123 pmlmepriv->to_roaming--;
2124
2125 if (0 < pmlmepriv->to_roaming) {
2126 continue;
2127 } else {
2128 DBG_88E("%s(%d) -to roaming fail, indicate_disconnect\n", __func__, __LINE__);
2129 rtw_indicate_disconnect(padapter);
2130 break;
2131 }
2132 }
2133 }
2134 }
2135 }
2136