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 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17 *
18 *
19 ******************************************************************************/
20 #define _RTW_MLME_C_
21
22
23 #include <osdep_service.h>
24 #include <drv_types.h>
25 #include <recv_osdep.h>
26 #include <xmit_osdep.h>
27 #include <hal_intf.h>
28 #include <mlme_osdep.h>
29 #include <sta_info.h>
30 #include <wifi.h>
31 #include <wlan_bssdef.h>
32 #include <rtw_ioctl_set.h>
33 #include <linux/vmalloc.h>
34
35 extern unsigned char MCS_rate_2R[16];
36 extern unsigned char MCS_rate_1R[16];
37
rtw_init_mlme_priv(struct adapter * padapter)38 int rtw_init_mlme_priv(struct adapter *padapter)
39 {
40 int i;
41 u8 *pbuf;
42 struct wlan_network *pnetwork;
43 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
44 int res = _SUCCESS;
45
46 /* We don't need to memset padapter->XXX to zero, because adapter is allocated by vzalloc(). */
47
48 pmlmepriv->nic_hdl = (u8 *)padapter;
49
50 pmlmepriv->pscanned = NULL;
51 pmlmepriv->fw_state = 0;
52 pmlmepriv->cur_network.network.InfrastructureMode = Ndis802_11AutoUnknown;
53 pmlmepriv->scan_mode = SCAN_ACTIVE;/* 1: active, 0: pasive. Maybe someday we should rename this varable to "active_mode" (Jeff) */
54
55 spin_lock_init(&(pmlmepriv->lock));
56 _rtw_init_queue(&(pmlmepriv->free_bss_pool));
57 _rtw_init_queue(&(pmlmepriv->scanned_queue));
58
59 set_scanned_network_val(pmlmepriv, 0);
60
61 memset(&pmlmepriv->assoc_ssid, 0, sizeof(struct ndis_802_11_ssid));
62
63 pbuf = vzalloc(MAX_BSS_CNT * (sizeof(struct wlan_network)));
64
65 if (pbuf == NULL) {
66 res = _FAIL;
67 goto exit;
68 }
69 pmlmepriv->free_bss_buf = pbuf;
70
71 pnetwork = (struct wlan_network *)pbuf;
72
73 for (i = 0; i < MAX_BSS_CNT; i++) {
74 INIT_LIST_HEAD(&(pnetwork->list));
75
76 list_add_tail(&(pnetwork->list), &(pmlmepriv->free_bss_pool.queue));
77
78 pnetwork++;
79 }
80
81 /* allocate DMA-able/Non-Page memory for cmd_buf and rsp_buf */
82
83 rtw_clear_scan_deny(padapter);
84
85 rtw_init_mlme_timer(padapter);
86
87 exit:
88 return res;
89 }
90
91 #if defined(CONFIG_88EU_AP_MODE)
rtw_free_mlme_ie_data(u8 ** ppie,u32 * plen)92 static void rtw_free_mlme_ie_data(u8 **ppie, u32 *plen)
93 {
94 kfree(*ppie);
95 *plen = 0;
96 *ppie = NULL;
97 }
98
rtw_free_mlme_priv_ie_data(struct mlme_priv * pmlmepriv)99 void rtw_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv)
100 {
101 rtw_buf_free(&pmlmepriv->assoc_req, &pmlmepriv->assoc_req_len);
102 rtw_buf_free(&pmlmepriv->assoc_rsp, &pmlmepriv->assoc_rsp_len);
103 rtw_free_mlme_ie_data(&pmlmepriv->wps_beacon_ie, &pmlmepriv->wps_beacon_ie_len);
104 rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_req_ie, &pmlmepriv->wps_probe_req_ie_len);
105 rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_resp_ie, &pmlmepriv->wps_probe_resp_ie_len);
106 rtw_free_mlme_ie_data(&pmlmepriv->wps_assoc_resp_ie, &pmlmepriv->wps_assoc_resp_ie_len);
107
108 rtw_free_mlme_ie_data(&pmlmepriv->p2p_beacon_ie, &pmlmepriv->p2p_beacon_ie_len);
109 rtw_free_mlme_ie_data(&pmlmepriv->p2p_probe_req_ie, &pmlmepriv->p2p_probe_req_ie_len);
110 rtw_free_mlme_ie_data(&pmlmepriv->p2p_probe_resp_ie, &pmlmepriv->p2p_probe_resp_ie_len);
111 rtw_free_mlme_ie_data(&pmlmepriv->p2p_go_probe_resp_ie, &pmlmepriv->p2p_go_probe_resp_ie_len);
112 rtw_free_mlme_ie_data(&pmlmepriv->p2p_assoc_req_ie, &pmlmepriv->p2p_assoc_req_ie_len);
113 }
114 #else
rtw_free_mlme_priv_ie_data(struct mlme_priv * pmlmepriv)115 void rtw_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv)
116 {
117 }
118 #endif
119
rtw_free_mlme_priv(struct mlme_priv * pmlmepriv)120 void rtw_free_mlme_priv(struct mlme_priv *pmlmepriv)
121 {
122 rtw_free_mlme_priv_ie_data(pmlmepriv);
123
124 if (pmlmepriv) {
125 if (pmlmepriv->free_bss_buf)
126 vfree(pmlmepriv->free_bss_buf);
127 }
128 }
129
_rtw_alloc_network(struct mlme_priv * pmlmepriv)130 struct wlan_network *_rtw_alloc_network(struct mlme_priv *pmlmepriv)/* _queue *free_queue) */
131 {
132 struct wlan_network *pnetwork;
133 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
134 struct list_head *plist = NULL;
135
136 spin_lock_bh(&free_queue->lock);
137
138 if (list_empty(&free_queue->queue)) {
139 pnetwork = NULL;
140 goto exit;
141 }
142 plist = free_queue->queue.next;
143
144 pnetwork = container_of(plist , struct wlan_network, list);
145
146 list_del_init(&pnetwork->list);
147
148 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("_rtw_alloc_network: ptr=%p\n", plist));
149 pnetwork->network_type = 0;
150 pnetwork->fixed = false;
151 pnetwork->last_scanned = jiffies;
152 pnetwork->aid = 0;
153 pnetwork->join_res = 0;
154
155 pmlmepriv->num_of_scanned++;
156
157 exit:
158 spin_unlock_bh(&free_queue->lock);
159
160 return pnetwork;
161 }
162
_rtw_free_network(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork,u8 isfreeall)163 static void _rtw_free_network(struct mlme_priv *pmlmepriv , struct wlan_network *pnetwork, u8 isfreeall)
164 {
165 u32 curr_time, delta_time;
166 u32 lifetime = SCANQUEUE_LIFETIME;
167 struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
168
169 if (pnetwork == NULL)
170 return;
171
172 if (pnetwork->fixed)
173 return;
174 curr_time = jiffies;
175 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) ||
176 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)))
177 lifetime = 1;
178 if (!isfreeall) {
179 delta_time = (curr_time - pnetwork->last_scanned)/HZ;
180 if (delta_time < lifetime)/* unit:sec */
181 return;
182 }
183 spin_lock_bh(&free_queue->lock);
184 list_del_init(&(pnetwork->list));
185 list_add_tail(&(pnetwork->list), &(free_queue->queue));
186 pmlmepriv->num_of_scanned--;
187 spin_unlock_bh(&free_queue->lock);
188 }
189
_rtw_free_network_nolock(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork)190 void _rtw_free_network_nolock(struct mlme_priv *pmlmepriv, struct wlan_network *pnetwork)
191 {
192 struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
193
194 if (pnetwork == NULL)
195 return;
196 if (pnetwork->fixed)
197 return;
198 list_del_init(&(pnetwork->list));
199 list_add_tail(&(pnetwork->list), get_list_head(free_queue));
200 pmlmepriv->num_of_scanned--;
201 }
202
203 /*
204 return the wlan_network with the matching addr
205
206 Shall be calle under atomic context... to avoid possible racing condition...
207 */
rtw_find_network(struct __queue * scanned_queue,u8 * addr)208 struct wlan_network *rtw_find_network(struct __queue *scanned_queue, u8 *addr)
209 {
210 struct list_head *phead, *plist;
211 struct wlan_network *pnetwork = NULL;
212 u8 zero_addr[ETH_ALEN] = {0, 0, 0, 0, 0, 0};
213
214 if (!memcmp(zero_addr, addr, ETH_ALEN)) {
215 pnetwork = NULL;
216 goto exit;
217 }
218 phead = get_list_head(scanned_queue);
219 plist = phead->next;
220
221 while (plist != phead) {
222 pnetwork = container_of(plist, struct wlan_network , list);
223 if (!memcmp(addr, pnetwork->network.MacAddress, ETH_ALEN))
224 break;
225 plist = plist->next;
226 }
227 if (plist == phead)
228 pnetwork = NULL;
229 exit:
230 return pnetwork;
231 }
232
233
rtw_free_network_queue(struct adapter * padapter,u8 isfreeall)234 void rtw_free_network_queue(struct adapter *padapter, u8 isfreeall)
235 {
236 struct list_head *phead, *plist;
237 struct wlan_network *pnetwork;
238 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
239 struct __queue *scanned_queue = &pmlmepriv->scanned_queue;
240
241 spin_lock_bh(&scanned_queue->lock);
242
243 phead = get_list_head(scanned_queue);
244 plist = phead->next;
245
246 while (phead != plist) {
247 pnetwork = container_of(plist, struct wlan_network, list);
248
249 plist = plist->next;
250
251 _rtw_free_network(pmlmepriv, pnetwork, isfreeall);
252 }
253 spin_unlock_bh(&scanned_queue->lock);
254 }
255
rtw_if_up(struct adapter * padapter)256 int rtw_if_up(struct adapter *padapter)
257 {
258 int res;
259
260 if (padapter->bDriverStopped || padapter->bSurpriseRemoved ||
261 (check_fwstate(&padapter->mlmepriv, _FW_LINKED) == false)) {
262 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
263 ("rtw_if_up:bDriverStopped(%d) OR bSurpriseRemoved(%d)",
264 padapter->bDriverStopped, padapter->bSurpriseRemoved));
265 res = false;
266 } else {
267 res = true;
268 }
269 return res;
270 }
271
rtw_generate_random_ibss(u8 * pibss)272 void rtw_generate_random_ibss(u8 *pibss)
273 {
274 u32 curtime = jiffies;
275
276 pibss[0] = 0x02; /* in ad-hoc mode bit1 must set to 1 */
277 pibss[1] = 0x11;
278 pibss[2] = 0x87;
279 pibss[3] = (u8)(curtime & 0xff);/* p[0]; */
280 pibss[4] = (u8)((curtime>>8) & 0xff);/* p[1]; */
281 pibss[5] = (u8)((curtime>>16) & 0xff);/* p[2]; */
282 return;
283 }
284
rtw_get_capability_from_ie(u8 * ie)285 u8 *rtw_get_capability_from_ie(u8 *ie)
286 {
287 return ie + 8 + 2;
288 }
289
290
rtw_get_capability(struct wlan_bssid_ex * bss)291 u16 rtw_get_capability(struct wlan_bssid_ex *bss)
292 {
293 __le16 val;
294
295 memcpy((u8 *)&val, rtw_get_capability_from_ie(bss->IEs), 2);
296
297 return le16_to_cpu(val);
298 }
299
rtw_get_beacon_interval_from_ie(u8 * ie)300 u8 *rtw_get_beacon_interval_from_ie(u8 *ie)
301 {
302 return ie + 8;
303 }
304
rtw_alloc_network(struct mlme_priv * pmlmepriv)305 static struct wlan_network *rtw_alloc_network(struct mlme_priv *pmlmepriv)
306 {
307 return _rtw_alloc_network(pmlmepriv);
308 }
309
rtw_free_network_nolock(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork)310 static void rtw_free_network_nolock(struct mlme_priv *pmlmepriv,
311 struct wlan_network *pnetwork)
312 {
313 _rtw_free_network_nolock(pmlmepriv, pnetwork);
314 }
315
rtw_is_same_ibss(struct adapter * adapter,struct wlan_network * pnetwork)316 int rtw_is_same_ibss(struct adapter *adapter, struct wlan_network *pnetwork)
317 {
318 int ret = true;
319 struct security_priv *psecuritypriv = &adapter->securitypriv;
320
321 if ((psecuritypriv->dot11PrivacyAlgrthm != _NO_PRIVACY_) &&
322 (pnetwork->network.Privacy == 0))
323 ret = false;
324 else if ((psecuritypriv->dot11PrivacyAlgrthm == _NO_PRIVACY_) &&
325 (pnetwork->network.Privacy == 1))
326 ret = false;
327 else
328 ret = true;
329 return ret;
330 }
331
is_same_ess(struct wlan_bssid_ex * a,struct wlan_bssid_ex * b)332 static int is_same_ess(struct wlan_bssid_ex *a, struct wlan_bssid_ex *b)
333 {
334 return (a->Ssid.SsidLength == b->Ssid.SsidLength) &&
335 !memcmp(a->Ssid.Ssid, b->Ssid.Ssid, a->Ssid.SsidLength);
336 }
337
is_same_network(struct wlan_bssid_ex * src,struct wlan_bssid_ex * dst)338 int is_same_network(struct wlan_bssid_ex *src, struct wlan_bssid_ex *dst)
339 {
340 u16 s_cap, d_cap;
341 __le16 le_scap, le_dcap;
342
343 memcpy((u8 *)&le_scap, rtw_get_capability_from_ie(src->IEs), 2);
344 memcpy((u8 *)&le_dcap, rtw_get_capability_from_ie(dst->IEs), 2);
345
346
347 s_cap = le16_to_cpu(le_scap);
348 d_cap = le16_to_cpu(le_dcap);
349
350 return ((src->Ssid.SsidLength == dst->Ssid.SsidLength) &&
351 ((!memcmp(src->MacAddress, dst->MacAddress, ETH_ALEN)) == true) &&
352 ((!memcmp(src->Ssid.Ssid, dst->Ssid.Ssid, src->Ssid.SsidLength)) == true) &&
353 ((s_cap & WLAN_CAPABILITY_IBSS) ==
354 (d_cap & WLAN_CAPABILITY_IBSS)) &&
355 ((s_cap & WLAN_CAPABILITY_BSS) ==
356 (d_cap & WLAN_CAPABILITY_BSS)));
357 }
358
rtw_get_oldest_wlan_network(struct __queue * scanned_queue)359 struct wlan_network *rtw_get_oldest_wlan_network(struct __queue *scanned_queue)
360 {
361 struct list_head *plist, *phead;
362 struct wlan_network *pwlan = NULL;
363 struct wlan_network *oldest = NULL;
364
365 phead = get_list_head(scanned_queue);
366
367 plist = phead->next;
368
369 while (1) {
370 if (phead == plist)
371 break;
372
373 pwlan = container_of(plist, struct wlan_network, list);
374
375 if (!pwlan->fixed) {
376 if (oldest == NULL || time_after(oldest->last_scanned, pwlan->last_scanned))
377 oldest = pwlan;
378 }
379
380 plist = plist->next;
381 }
382 return oldest;
383 }
384
update_network(struct wlan_bssid_ex * dst,struct wlan_bssid_ex * src,struct adapter * padapter,bool update_ie)385 void update_network(struct wlan_bssid_ex *dst, struct wlan_bssid_ex *src,
386 struct adapter *padapter, bool update_ie)
387 {
388 long rssi_ori = dst->Rssi;
389 u8 sq_smp = src->PhyInfo.SignalQuality;
390 u8 ss_final;
391 u8 sq_final;
392 long rssi_final;
393
394 rtw_hal_antdiv_rssi_compared(padapter, dst, src); /* this will update src.Rssi, need consider again */
395
396 /* The rule below is 1/5 for sample value, 4/5 for history value */
397 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) && is_same_network(&(padapter->mlmepriv.cur_network.network), src)) {
398 /* Take the recvpriv's value for the connected AP*/
399 ss_final = padapter->recvpriv.signal_strength;
400 sq_final = padapter->recvpriv.signal_qual;
401 /* the rssi value here is undecorated, and will be used for antenna diversity */
402 if (sq_smp != 101) /* from the right channel */
403 rssi_final = (src->Rssi+dst->Rssi*4)/5;
404 else
405 rssi_final = rssi_ori;
406 } else {
407 if (sq_smp != 101) { /* from the right channel */
408 ss_final = ((u32)(src->PhyInfo.SignalStrength)+(u32)(dst->PhyInfo.SignalStrength)*4)/5;
409 sq_final = ((u32)(src->PhyInfo.SignalQuality)+(u32)(dst->PhyInfo.SignalQuality)*4)/5;
410 rssi_final = (src->Rssi+dst->Rssi*4)/5;
411 } else {
412 /* bss info not receiving from the right channel, use the original RX signal infos */
413 ss_final = dst->PhyInfo.SignalStrength;
414 sq_final = dst->PhyInfo.SignalQuality;
415 rssi_final = dst->Rssi;
416 }
417 }
418 if (update_ie)
419 memcpy((u8 *)dst, (u8 *)src, get_wlan_bssid_ex_sz(src));
420 dst->PhyInfo.SignalStrength = ss_final;
421 dst->PhyInfo.SignalQuality = sq_final;
422 dst->Rssi = rssi_final;
423
424 }
425
update_current_network(struct adapter * adapter,struct wlan_bssid_ex * pnetwork)426 static void update_current_network(struct adapter *adapter, struct wlan_bssid_ex *pnetwork)
427 {
428 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
429
430 if ((check_fwstate(pmlmepriv, _FW_LINKED) == true) &&
431 (is_same_network(&(pmlmepriv->cur_network.network), pnetwork))) {
432 update_network(&(pmlmepriv->cur_network.network), pnetwork, adapter, true);
433 rtw_update_protection(adapter, (pmlmepriv->cur_network.network.IEs) + sizeof(struct ndis_802_11_fixed_ie),
434 pmlmepriv->cur_network.network.IELength);
435 }
436 }
437
438 /*
439 Caller must hold pmlmepriv->lock first.
440 */
rtw_update_scanned_network(struct adapter * adapter,struct wlan_bssid_ex * target)441 void rtw_update_scanned_network(struct adapter *adapter, struct wlan_bssid_ex *target)
442 {
443 struct list_head *plist, *phead;
444 u32 bssid_ex_sz;
445 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
446 struct __queue *queue = &(pmlmepriv->scanned_queue);
447 struct wlan_network *pnetwork = NULL;
448 struct wlan_network *oldest = NULL;
449
450 spin_lock_bh(&queue->lock);
451 phead = get_list_head(queue);
452 plist = phead->next;
453
454 while (phead != plist) {
455 pnetwork = container_of(plist, struct wlan_network, list);
456
457 if (is_same_network(&(pnetwork->network), target))
458 break;
459 if ((oldest == ((struct wlan_network *)0)) ||
460 time_after(oldest->last_scanned, pnetwork->last_scanned))
461 oldest = pnetwork;
462 plist = plist->next;
463 }
464 /* If we didn't find a match, then get a new network slot to initialize
465 * with this beacon's information */
466 if (phead == plist) {
467 if (list_empty(&(pmlmepriv->free_bss_pool.queue))) {
468 /* If there are no more slots, expire the oldest */
469 pnetwork = oldest;
470
471 rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(target->PhyInfo.Optimum_antenna));
472 memcpy(&(pnetwork->network), target, get_wlan_bssid_ex_sz(target));
473 /* variable initialize */
474 pnetwork->fixed = false;
475 pnetwork->last_scanned = jiffies;
476
477 pnetwork->network_type = 0;
478 pnetwork->aid = 0;
479 pnetwork->join_res = 0;
480
481 /* bss info not receiving from the right channel */
482 if (pnetwork->network.PhyInfo.SignalQuality == 101)
483 pnetwork->network.PhyInfo.SignalQuality = 0;
484 } else {
485 /* Otherwise just pull from the free list */
486
487 pnetwork = rtw_alloc_network(pmlmepriv); /* will update scan_time */
488
489 if (pnetwork == NULL) {
490 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n\n\nsomething wrong here\n\n\n"));
491 goto exit;
492 }
493
494 bssid_ex_sz = get_wlan_bssid_ex_sz(target);
495 target->Length = bssid_ex_sz;
496 rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(target->PhyInfo.Optimum_antenna));
497 memcpy(&(pnetwork->network), target, bssid_ex_sz);
498
499 pnetwork->last_scanned = jiffies;
500
501 /* bss info not receiving from the right channel */
502 if (pnetwork->network.PhyInfo.SignalQuality == 101)
503 pnetwork->network.PhyInfo.SignalQuality = 0;
504 list_add_tail(&(pnetwork->list), &(queue->queue));
505 }
506 } else {
507 /* we have an entry and we are going to update it. But this entry may
508 * be already expired. In this case we do the same as we found a new
509 * net and call the new_net handler
510 */
511 bool update_ie = true;
512
513 pnetwork->last_scanned = jiffies;
514
515 /* target.Reserved[0]== 1, means that scanned network is a bcn frame. */
516 if ((pnetwork->network.IELength > target->IELength) && (target->Reserved[0] == 1))
517 update_ie = false;
518
519 update_network(&(pnetwork->network), target, adapter, update_ie);
520 }
521
522 exit:
523 spin_unlock_bh(&queue->lock);
524
525 }
526
rtw_add_network(struct adapter * adapter,struct wlan_bssid_ex * pnetwork)527 static void rtw_add_network(struct adapter *adapter,
528 struct wlan_bssid_ex *pnetwork)
529 {
530 update_current_network(adapter, pnetwork);
531 rtw_update_scanned_network(adapter, pnetwork);
532 }
533
534 /*
535 * select the desired network based on the capability of the (i)bss.
536 * check items: (1) security
537 * (2) network_type
538 * (3) WMM
539 * (4) HT
540 * (5) others
541 */
rtw_is_desired_network(struct adapter * adapter,struct wlan_network * pnetwork)542 static int rtw_is_desired_network(struct adapter *adapter, struct wlan_network *pnetwork)
543 {
544 struct security_priv *psecuritypriv = &adapter->securitypriv;
545 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
546 u32 desired_encmode;
547 u32 privacy;
548
549 /* u8 wps_ie[512]; */
550 uint wps_ielen;
551
552 int bselected = true;
553
554 desired_encmode = psecuritypriv->ndisencryptstatus;
555 privacy = pnetwork->network.Privacy;
556
557 if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
558 if (rtw_get_wps_ie(pnetwork->network.IEs+_FIXED_IE_LENGTH_, pnetwork->network.IELength-_FIXED_IE_LENGTH_, NULL, &wps_ielen) != NULL)
559 return true;
560 else
561 return false;
562 }
563 if (adapter->registrypriv.wifi_spec == 1) { /* for correct flow of 8021X to do.... */
564 if ((desired_encmode == Ndis802_11EncryptionDisabled) && (privacy != 0))
565 bselected = false;
566 }
567
568
569 if ((desired_encmode != Ndis802_11EncryptionDisabled) && (privacy == 0)) {
570 DBG_88E("desired_encmode: %d, privacy: %d\n", desired_encmode, privacy);
571 bselected = false;
572 }
573
574 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) {
575 if (pnetwork->network.InfrastructureMode != pmlmepriv->cur_network.network.InfrastructureMode)
576 bselected = false;
577 }
578
579
580 return bselected;
581 }
582
583 /* TODO: Perry: For Power Management */
rtw_atimdone_event_callback(struct adapter * adapter,u8 * pbuf)584 void rtw_atimdone_event_callback(struct adapter *adapter , u8 *pbuf)
585 {
586 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("receive atimdone_evet\n"));
587 return;
588 }
589
590
rtw_survey_event_callback(struct adapter * adapter,u8 * pbuf)591 void rtw_survey_event_callback(struct adapter *adapter, u8 *pbuf)
592 {
593 u32 len;
594 struct wlan_bssid_ex *pnetwork;
595 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
596
597 pnetwork = (struct wlan_bssid_ex *)pbuf;
598
599 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_survey_event_callback, ssid=%s\n", pnetwork->Ssid.Ssid));
600
601 len = get_wlan_bssid_ex_sz(pnetwork);
602 if (len > (sizeof(struct wlan_bssid_ex))) {
603 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n****rtw_survey_event_callback: return a wrong bss ***\n"));
604 return;
605 }
606 spin_lock_bh(&pmlmepriv->lock);
607
608 /* update IBSS_network 's timestamp */
609 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) == true) {
610 if (!memcmp(&(pmlmepriv->cur_network.network.MacAddress), pnetwork->MacAddress, ETH_ALEN)) {
611 struct wlan_network *ibss_wlan = NULL;
612
613 memcpy(pmlmepriv->cur_network.network.IEs, pnetwork->IEs, 8);
614 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
615 ibss_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->MacAddress);
616 if (ibss_wlan) {
617 memcpy(ibss_wlan->network.IEs , pnetwork->IEs, 8);
618 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
619 goto exit;
620 }
621 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
622 }
623 }
624
625 /* lock pmlmepriv->lock when you accessing network_q */
626 if ((check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) == false) {
627 if (pnetwork->Ssid.Ssid[0] == 0)
628 pnetwork->Ssid.SsidLength = 0;
629 rtw_add_network(adapter, pnetwork);
630 }
631
632 exit:
633
634 spin_unlock_bh(&pmlmepriv->lock);
635 return;
636 }
637
rtw_surveydone_event_callback(struct adapter * adapter,u8 * pbuf)638 void rtw_surveydone_event_callback(struct adapter *adapter, u8 *pbuf)
639 {
640 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
641 struct mlme_ext_priv *pmlmeext;
642
643 spin_lock_bh(&pmlmepriv->lock);
644
645 if (pmlmepriv->wps_probe_req_ie) {
646 pmlmepriv->wps_probe_req_ie_len = 0;
647 kfree(pmlmepriv->wps_probe_req_ie);
648 pmlmepriv->wps_probe_req_ie = NULL;
649 }
650
651 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_surveydone_event_callback: fw_state:%x\n\n", get_fwstate(pmlmepriv)));
652
653 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
654 del_timer_sync(&pmlmepriv->scan_to_timer);
655 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
656 } else {
657 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("nic status=%x, survey done event comes too late!\n", get_fwstate(pmlmepriv)));
658 }
659
660 rtw_set_signal_stat_timer(&adapter->recvpriv);
661
662 if (pmlmepriv->to_join) {
663 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true)) {
664 if (check_fwstate(pmlmepriv, _FW_LINKED) == false) {
665 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
666
667 if (rtw_select_and_join_from_scanned_queue(pmlmepriv) == _SUCCESS) {
668 mod_timer(&pmlmepriv->assoc_timer,
669 jiffies + msecs_to_jiffies(MAX_JOIN_TIMEOUT));
670 } else {
671 struct wlan_bssid_ex *pdev_network = &(adapter->registrypriv.dev_network);
672 u8 *pibss = adapter->registrypriv.dev_network.MacAddress;
673
674 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
675
676 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("switching to adhoc master\n"));
677
678 memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
679
680 rtw_update_registrypriv_dev_network(adapter);
681 rtw_generate_random_ibss(pibss);
682
683 pmlmepriv->fw_state = WIFI_ADHOC_MASTER_STATE;
684
685 if (rtw_createbss_cmd(adapter) != _SUCCESS)
686 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Error=>rtw_createbss_cmd status FAIL\n"));
687 pmlmepriv->to_join = false;
688 }
689 }
690 } else {
691 int s_ret;
692 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
693 pmlmepriv->to_join = false;
694 s_ret = rtw_select_and_join_from_scanned_queue(pmlmepriv);
695 if (_SUCCESS == s_ret) {
696 mod_timer(&pmlmepriv->assoc_timer,
697 jiffies + msecs_to_jiffies(MAX_JOIN_TIMEOUT));
698 } else if (s_ret == 2) { /* there is no need to wait for join */
699 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
700 rtw_indicate_connect(adapter);
701 } else {
702 DBG_88E("try_to_join, but select scanning queue fail, to_roaming:%d\n", pmlmepriv->to_roaming);
703 if (pmlmepriv->to_roaming != 0) {
704 if (--pmlmepriv->to_roaming == 0 ||
705 _SUCCESS != rtw_sitesurvey_cmd(adapter, &pmlmepriv->assoc_ssid, 1, NULL, 0)) {
706 pmlmepriv->to_roaming = 0;
707 rtw_free_assoc_resources(adapter, 1);
708 rtw_indicate_disconnect(adapter);
709 } else {
710 pmlmepriv->to_join = true;
711 }
712 }
713 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
714 }
715 }
716 }
717
718 indicate_wx_scan_complete_event(adapter);
719
720 spin_unlock_bh(&pmlmepriv->lock);
721
722 rtw_os_xmit_schedule(adapter);
723
724 pmlmeext = &adapter->mlmeextpriv;
725 }
726
rtw_dummy_event_callback(struct adapter * adapter,u8 * pbuf)727 void rtw_dummy_event_callback(struct adapter *adapter , u8 *pbuf)
728 {
729 }
730
rtw_fwdbg_event_callback(struct adapter * adapter,u8 * pbuf)731 void rtw_fwdbg_event_callback(struct adapter *adapter , u8 *pbuf)
732 {
733 }
734
free_scanqueue(struct mlme_priv * pmlmepriv)735 static void free_scanqueue(struct mlme_priv *pmlmepriv)
736 {
737 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
738 struct __queue *scan_queue = &pmlmepriv->scanned_queue;
739 struct list_head *plist, *phead, *ptemp;
740
741 RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, ("+free_scanqueue\n"));
742 spin_lock_bh(&scan_queue->lock);
743 spin_lock_bh(&free_queue->lock);
744
745 phead = get_list_head(scan_queue);
746 plist = phead->next;
747
748 while (plist != phead) {
749 ptemp = plist->next;
750 list_del_init(plist);
751 list_add_tail(plist, &free_queue->queue);
752 plist = ptemp;
753 pmlmepriv->num_of_scanned--;
754 }
755
756 spin_unlock_bh(&free_queue->lock);
757 spin_unlock_bh(&scan_queue->lock);
758 }
759
760 /*
761 *rtw_free_assoc_resources: the caller has to lock pmlmepriv->lock
762 */
rtw_free_assoc_resources(struct adapter * adapter,int lock_scanned_queue)763 void rtw_free_assoc_resources(struct adapter *adapter, int lock_scanned_queue)
764 {
765 struct wlan_network *pwlan = NULL;
766 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
767 struct sta_priv *pstapriv = &adapter->stapriv;
768 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
769
770 RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, ("+rtw_free_assoc_resources\n"));
771 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
772 ("tgt_network->network.MacAddress=%pM ssid=%s\n",
773 tgt_network->network.MacAddress, tgt_network->network.Ssid.Ssid));
774
775 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE)) {
776 struct sta_info *psta;
777
778 psta = rtw_get_stainfo(&adapter->stapriv, tgt_network->network.MacAddress);
779
780 spin_lock_bh(&(pstapriv->sta_hash_lock));
781 rtw_free_stainfo(adapter, psta);
782 spin_unlock_bh(&pstapriv->sta_hash_lock);
783 }
784
785 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE | WIFI_AP_STATE)) {
786 struct sta_info *psta;
787
788 rtw_free_all_stainfo(adapter);
789
790 psta = rtw_get_bcmc_stainfo(adapter);
791 spin_lock_bh(&(pstapriv->sta_hash_lock));
792 rtw_free_stainfo(adapter, psta);
793 spin_unlock_bh(&pstapriv->sta_hash_lock);
794
795 rtw_init_bcmc_stainfo(adapter);
796 }
797
798 if (lock_scanned_queue)
799 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
800
801 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
802 if (pwlan)
803 pwlan->fixed = false;
804 else
805 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_free_assoc_resources:pwlan==NULL\n\n"));
806
807 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) && (adapter->stapriv.asoc_sta_count == 1)))
808 rtw_free_network_nolock(pmlmepriv, pwlan);
809
810 if (lock_scanned_queue)
811 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
812 pmlmepriv->key_mask = 0;
813 }
814
815 /*
816 *rtw_indicate_connect: the caller has to lock pmlmepriv->lock
817 */
rtw_indicate_connect(struct adapter * padapter)818 void rtw_indicate_connect(struct adapter *padapter)
819 {
820 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
821
822 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_indicate_connect\n"));
823
824 pmlmepriv->to_join = false;
825
826 if (!check_fwstate(&padapter->mlmepriv, _FW_LINKED)) {
827 set_fwstate(pmlmepriv, _FW_LINKED);
828
829 rtw_led_control(padapter, LED_CTL_LINK);
830
831 rtw_os_indicate_connect(padapter);
832 }
833
834 pmlmepriv->to_roaming = 0;
835
836 rtw_set_scan_deny(padapter, 3000);
837
838 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("-rtw_indicate_connect: fw_state=0x%08x\n", get_fwstate(pmlmepriv)));
839 }
840
841 /*
842 *rtw_indicate_disconnect: the caller has to lock pmlmepriv->lock
843 */
rtw_indicate_disconnect(struct adapter * padapter)844 void rtw_indicate_disconnect(struct adapter *padapter)
845 {
846 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
847
848 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_indicate_disconnect\n"));
849
850 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING | WIFI_UNDER_WPS);
851
852
853 if (pmlmepriv->to_roaming > 0)
854 _clr_fwstate_(pmlmepriv, _FW_LINKED);
855
856 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) ||
857 (pmlmepriv->to_roaming <= 0)) {
858 rtw_os_indicate_disconnect(padapter);
859
860 _clr_fwstate_(pmlmepriv, _FW_LINKED);
861 rtw_led_control(padapter, LED_CTL_NO_LINK);
862 rtw_clear_scan_deny(padapter);
863 }
864
865 rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_DISCONNECT, 1);
866 }
867
rtw_indicate_scan_done(struct adapter * padapter,bool aborted)868 inline void rtw_indicate_scan_done(struct adapter *padapter, bool aborted)
869 {
870 rtw_os_indicate_scan_done(padapter, aborted);
871 }
872
rtw_scan_abort(struct adapter * adapter)873 void rtw_scan_abort(struct adapter *adapter)
874 {
875 u32 start;
876 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
877 struct mlme_ext_priv *pmlmeext = &(adapter->mlmeextpriv);
878
879 start = jiffies;
880 pmlmeext->scan_abort = true;
881 while (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY) &&
882 rtw_get_passing_time_ms(start) <= 200) {
883 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
884 break;
885 DBG_88E(FUNC_NDEV_FMT"fw_state=_FW_UNDER_SURVEY!\n", FUNC_NDEV_ARG(adapter->pnetdev));
886 msleep(20);
887 }
888 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
889 if (!adapter->bDriverStopped && !adapter->bSurpriseRemoved)
890 DBG_88E(FUNC_NDEV_FMT"waiting for scan_abort time out!\n", FUNC_NDEV_ARG(adapter->pnetdev));
891 rtw_indicate_scan_done(adapter, true);
892 }
893 pmlmeext->scan_abort = false;
894 }
895
rtw_joinbss_update_stainfo(struct adapter * padapter,struct wlan_network * pnetwork)896 static struct sta_info *rtw_joinbss_update_stainfo(struct adapter *padapter, struct wlan_network *pnetwork)
897 {
898 int i;
899 struct sta_info *bmc_sta, *psta = NULL;
900 struct recv_reorder_ctrl *preorder_ctrl;
901 struct sta_priv *pstapriv = &padapter->stapriv;
902
903 psta = rtw_get_stainfo(pstapriv, pnetwork->network.MacAddress);
904 if (psta == NULL)
905 psta = rtw_alloc_stainfo(pstapriv, pnetwork->network.MacAddress);
906
907 if (psta) { /* update ptarget_sta */
908 DBG_88E("%s\n", __func__);
909 psta->aid = pnetwork->join_res;
910 psta->mac_id = 0;
911 /* sta mode */
912 rtw_hal_set_odm_var(padapter, HAL_ODM_STA_INFO, psta, true);
913 /* security related */
914 if (padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
915 padapter->securitypriv.binstallGrpkey = false;
916 padapter->securitypriv.busetkipkey = false;
917 padapter->securitypriv.bgrpkey_handshake = false;
918 psta->ieee8021x_blocked = true;
919 psta->dot118021XPrivacy = padapter->securitypriv.dot11PrivacyAlgrthm;
920 memset((u8 *)&psta->dot118021x_UncstKey, 0, sizeof(union Keytype));
921 memset((u8 *)&psta->dot11tkiprxmickey, 0, sizeof(union Keytype));
922 memset((u8 *)&psta->dot11tkiptxmickey, 0, sizeof(union Keytype));
923 memset((u8 *)&psta->dot11txpn, 0, sizeof(union pn48));
924 memset((u8 *)&psta->dot11rxpn, 0, sizeof(union pn48));
925 }
926 /*
927 * Commented by Albert 2012/07/21
928 * When doing the WPS, the wps_ie_len won't equal to 0
929 * And the Wi-Fi driver shouldn't allow the data
930 * packet to be tramsmitted.
931 */
932 if (padapter->securitypriv.wps_ie_len != 0) {
933 psta->ieee8021x_blocked = true;
934 padapter->securitypriv.wps_ie_len = 0;
935 }
936 /* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info */
937 /* if A-MPDU Rx is enabled, resetting rx_ordering_ctrl wstart_b(indicate_seq) to default value = 0xffff */
938 /* todo: check if AP can send A-MPDU packets */
939 for (i = 0; i < 16; i++) {
940 /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
941 preorder_ctrl = &psta->recvreorder_ctrl[i];
942 preorder_ctrl->enable = false;
943 preorder_ctrl->indicate_seq = 0xffff;
944 preorder_ctrl->wend_b = 0xffff;
945 preorder_ctrl->wsize_b = 64;/* max_ampdu_sz; ex. 32(kbytes) -> wsize_b = 32 */
946 }
947 bmc_sta = rtw_get_bcmc_stainfo(padapter);
948 if (bmc_sta) {
949 for (i = 0; i < 16; i++) {
950 /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
951 preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
952 preorder_ctrl->enable = false;
953 preorder_ctrl->indicate_seq = 0xffff;
954 preorder_ctrl->wend_b = 0xffff;
955 preorder_ctrl->wsize_b = 64;/* max_ampdu_sz; ex. 32(kbytes) -> wsize_b = 32 */
956 }
957 }
958 /* misc. */
959 update_sta_info(padapter, psta);
960 }
961 return psta;
962 }
963
964 /* pnetwork: returns from rtw_joinbss_event_callback */
965 /* ptarget_wlan: found from scanned_queue */
rtw_joinbss_update_network(struct adapter * padapter,struct wlan_network * ptarget_wlan,struct wlan_network * pnetwork)966 static void rtw_joinbss_update_network(struct adapter *padapter, struct wlan_network *ptarget_wlan, struct wlan_network *pnetwork)
967 {
968 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
969 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
970
971 DBG_88E("%s\n", __func__);
972
973 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
974 ("\nfw_state:%x, BSSID:%pM\n",
975 get_fwstate(pmlmepriv), pnetwork->network.MacAddress));
976
977
978 /* why not use ptarget_wlan?? */
979 memcpy(&cur_network->network, &pnetwork->network, pnetwork->network.Length);
980 /* some IEs in pnetwork is wrong, so we should use ptarget_wlan IEs */
981 cur_network->network.IELength = ptarget_wlan->network.IELength;
982 memcpy(&cur_network->network.IEs[0], &ptarget_wlan->network.IEs[0], MAX_IE_SZ);
983
984 cur_network->aid = pnetwork->join_res;
985
986
987 rtw_set_signal_stat_timer(&padapter->recvpriv);
988 padapter->recvpriv.signal_strength = ptarget_wlan->network.PhyInfo.SignalStrength;
989 padapter->recvpriv.signal_qual = ptarget_wlan->network.PhyInfo.SignalQuality;
990 /* the ptarget_wlan->network.Rssi is raw data, we use ptarget_wlan->network.PhyInfo.SignalStrength instead (has scaled) */
991 padapter->recvpriv.rssi = translate_percentage_to_dbm(ptarget_wlan->network.PhyInfo.SignalStrength);
992 rtw_set_signal_stat_timer(&padapter->recvpriv);
993
994 /* update fw_state will clr _FW_UNDER_LINKING here indirectly */
995 switch (pnetwork->network.InfrastructureMode) {
996 case Ndis802_11Infrastructure:
997 if (pmlmepriv->fw_state&WIFI_UNDER_WPS)
998 pmlmepriv->fw_state = WIFI_STATION_STATE|WIFI_UNDER_WPS;
999 else
1000 pmlmepriv->fw_state = WIFI_STATION_STATE;
1001 break;
1002 case Ndis802_11IBSS:
1003 pmlmepriv->fw_state = WIFI_ADHOC_STATE;
1004 break;
1005 default:
1006 pmlmepriv->fw_state = WIFI_NULL_STATE;
1007 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Invalid network_mode\n"));
1008 break;
1009 }
1010
1011 rtw_update_protection(padapter, (cur_network->network.IEs) +
1012 sizeof(struct ndis_802_11_fixed_ie),
1013 (cur_network->network.IELength));
1014 rtw_update_ht_cap(padapter, cur_network->network.IEs, cur_network->network.IELength);
1015 }
1016
1017 /* Notes: the function could be > passive_level (the same context as Rx tasklet) */
1018 /* pnetwork: returns from rtw_joinbss_event_callback */
1019 /* ptarget_wlan: found from scanned_queue */
1020 /* if join_res > 0, for (fw_state == WIFI_STATION_STATE), we check if "ptarget_sta" & "ptarget_wlan" exist. */
1021 /* if join_res > 0, for (fw_state == WIFI_ADHOC_STATE), we only check if "ptarget_wlan" exist. */
1022 /* if join_res > 0, update "cur_network->network" from "pnetwork->network" if (ptarget_wlan != NULL). */
1023
rtw_joinbss_event_prehandle(struct adapter * adapter,u8 * pbuf)1024 void rtw_joinbss_event_prehandle(struct adapter *adapter, u8 *pbuf)
1025 {
1026 struct sta_info *ptarget_sta = NULL, *pcur_sta = NULL;
1027 struct sta_priv *pstapriv = &adapter->stapriv;
1028 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1029 struct wlan_network *pnetwork = (struct wlan_network *)pbuf;
1030 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
1031 struct wlan_network *pcur_wlan = NULL, *ptarget_wlan = NULL;
1032 unsigned int the_same_macaddr = false;
1033
1034 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("joinbss event call back received with res=%d\n", pnetwork->join_res));
1035
1036 rtw_get_encrypt_decrypt_from_registrypriv(adapter);
1037
1038
1039 if (pmlmepriv->assoc_ssid.SsidLength == 0)
1040 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("@@@@@ joinbss event call back for Any SSid\n"));
1041 else
1042 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("@@@@@ rtw_joinbss_event_callback for SSid:%s\n", pmlmepriv->assoc_ssid.Ssid));
1043
1044 the_same_macaddr = !memcmp(pnetwork->network.MacAddress, cur_network->network.MacAddress, ETH_ALEN);
1045
1046 pnetwork->network.Length = get_wlan_bssid_ex_sz(&pnetwork->network);
1047 if (pnetwork->network.Length > sizeof(struct wlan_bssid_ex)) {
1048 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n\n ***joinbss_evt_callback return a wrong bss ***\n\n"));
1049 return;
1050 }
1051
1052 spin_lock_bh(&pmlmepriv->lock);
1053
1054 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\nrtw_joinbss_event_callback!! _enter_critical\n"));
1055
1056 if (pnetwork->join_res > 0) {
1057 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1058 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
1059 /* s1. find ptarget_wlan */
1060 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1061 if (the_same_macaddr) {
1062 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1063 } else {
1064 pcur_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1065 if (pcur_wlan)
1066 pcur_wlan->fixed = false;
1067
1068 pcur_sta = rtw_get_stainfo(pstapriv, cur_network->network.MacAddress);
1069 if (pcur_sta) {
1070 spin_lock_bh(&(pstapriv->sta_hash_lock));
1071 rtw_free_stainfo(adapter, pcur_sta);
1072 spin_unlock_bh(&pstapriv->sta_hash_lock);
1073 }
1074
1075 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->network.MacAddress);
1076 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1077 if (ptarget_wlan)
1078 ptarget_wlan->fixed = true;
1079 }
1080 }
1081 } else {
1082 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->network.MacAddress);
1083 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1084 if (ptarget_wlan)
1085 ptarget_wlan->fixed = true;
1086 }
1087 }
1088
1089 /* s2. update cur_network */
1090 if (ptarget_wlan) {
1091 rtw_joinbss_update_network(adapter, ptarget_wlan, pnetwork);
1092 } else {
1093 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't find ptarget_wlan when joinbss_event callback\n"));
1094 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1095 goto ignore_joinbss_callback;
1096 }
1097
1098
1099 /* s3. find ptarget_sta & update ptarget_sta after update cur_network only for station mode */
1100 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1101 ptarget_sta = rtw_joinbss_update_stainfo(adapter, pnetwork);
1102 if (ptarget_sta == NULL) {
1103 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't update stainfo when joinbss_event callback\n"));
1104 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1105 goto ignore_joinbss_callback;
1106 }
1107 }
1108
1109 /* s4. indicate connect */
1110 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1111 rtw_indicate_connect(adapter);
1112 } else {
1113 /* adhoc mode will rtw_indicate_connect when rtw_stassoc_event_callback */
1114 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("adhoc mode, fw_state:%x", get_fwstate(pmlmepriv)));
1115 }
1116
1117 /* s5. Cancle assoc_timer */
1118 del_timer_sync(&pmlmepriv->assoc_timer);
1119
1120 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("Cancle assoc_timer\n"));
1121
1122 } else {
1123 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_joinbss_event_callback err: fw_state:%x", get_fwstate(pmlmepriv)));
1124 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1125 goto ignore_joinbss_callback;
1126 }
1127
1128 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1129
1130 } else if (pnetwork->join_res == -4) {
1131 rtw_reset_securitypriv(adapter);
1132 mod_timer(&pmlmepriv->assoc_timer,
1133 jiffies + msecs_to_jiffies(1));
1134
1135 if ((check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) == true) {
1136 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("fail! clear _FW_UNDER_LINKING ^^^fw_state=%x\n", get_fwstate(pmlmepriv)));
1137 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1138 }
1139 } else { /* if join_res < 0 (join fails), then try again */
1140 mod_timer(&pmlmepriv->assoc_timer,
1141 jiffies + msecs_to_jiffies(1));
1142 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1143 }
1144
1145 ignore_joinbss_callback:
1146 spin_unlock_bh(&pmlmepriv->lock);
1147 }
1148
rtw_joinbss_event_callback(struct adapter * adapter,u8 * pbuf)1149 void rtw_joinbss_event_callback(struct adapter *adapter, u8 *pbuf)
1150 {
1151 struct wlan_network *pnetwork = (struct wlan_network *)pbuf;
1152
1153 mlmeext_joinbss_event_callback(adapter, pnetwork->join_res);
1154
1155 rtw_os_xmit_schedule(adapter);
1156 }
1157
search_max_mac_id(struct adapter * padapter)1158 static u8 search_max_mac_id(struct adapter *padapter)
1159 {
1160 u8 mac_id;
1161 #if defined(CONFIG_88EU_AP_MODE)
1162 u8 aid;
1163 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
1164 struct sta_priv *pstapriv = &padapter->stapriv;
1165 #endif
1166 struct mlme_ext_priv *pmlmeext = &(padapter->mlmeextpriv);
1167 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1168
1169 #if defined(CONFIG_88EU_AP_MODE)
1170 if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
1171 for (aid = (pstapriv->max_num_sta); aid > 0; aid--) {
1172 if (pstapriv->sta_aid[aid-1] != NULL)
1173 break;
1174 }
1175 mac_id = aid + 1;
1176 } else
1177 #endif
1178 {/* adhoc id = 31~2 */
1179 for (mac_id = (NUM_STA-1); mac_id >= IBSS_START_MAC_ID; mac_id--) {
1180 if (pmlmeinfo->FW_sta_info[mac_id].status == 1)
1181 break;
1182 }
1183 }
1184 return mac_id;
1185 }
1186
1187 /* FOR AP , AD-HOC mode */
rtw_stassoc_hw_rpt(struct adapter * adapter,struct sta_info * psta)1188 void rtw_stassoc_hw_rpt(struct adapter *adapter, struct sta_info *psta)
1189 {
1190 u16 media_status;
1191 u8 macid;
1192
1193 if (psta == NULL)
1194 return;
1195
1196 macid = search_max_mac_id(adapter);
1197 rtw_hal_set_hwreg(adapter, HW_VAR_TX_RPT_MAX_MACID, (u8 *)&macid);
1198 media_status = (psta->mac_id<<8)|1; /* MACID|OPMODE:1 connect */
1199 rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status);
1200 }
1201
rtw_stassoc_event_callback(struct adapter * adapter,u8 * pbuf)1202 void rtw_stassoc_event_callback(struct adapter *adapter, u8 *pbuf)
1203 {
1204 struct sta_info *psta;
1205 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1206 struct stassoc_event *pstassoc = (struct stassoc_event *)pbuf;
1207 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
1208 struct wlan_network *ptarget_wlan = NULL;
1209
1210 if (rtw_access_ctrl(adapter, pstassoc->macaddr) == false)
1211 return;
1212
1213 #if defined(CONFIG_88EU_AP_MODE)
1214 if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
1215 psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1216 if (psta) {
1217 ap_sta_info_defer_update(adapter, psta);
1218 rtw_stassoc_hw_rpt(adapter, psta);
1219 }
1220 return;
1221 }
1222 #endif
1223 /* for AD-HOC mode */
1224 psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1225 if (psta != NULL) {
1226 /* the sta have been in sta_info_queue => do nothing */
1227 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Error: rtw_stassoc_event_callback: sta has been in sta_hash_queue\n"));
1228 return; /* between drv has received this event before and fw have not yet to set key to CAM_ENTRY) */
1229 }
1230 psta = rtw_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
1231 if (psta == NULL) {
1232 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't alloc sta_info when rtw_stassoc_event_callback\n"));
1233 return;
1234 }
1235 /* to do: init sta_info variable */
1236 psta->qos_option = 0;
1237 psta->mac_id = (uint)pstassoc->cam_id;
1238 DBG_88E("%s\n", __func__);
1239 /* for ad-hoc mode */
1240 rtw_hal_set_odm_var(adapter, HAL_ODM_STA_INFO, psta, true);
1241 rtw_stassoc_hw_rpt(adapter, psta);
1242 if (adapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X)
1243 psta->dot118021XPrivacy = adapter->securitypriv.dot11PrivacyAlgrthm;
1244 psta->ieee8021x_blocked = false;
1245 spin_lock_bh(&pmlmepriv->lock);
1246 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) ||
1247 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE))) {
1248 if (adapter->stapriv.asoc_sta_count == 2) {
1249 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1250 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1251 if (ptarget_wlan)
1252 ptarget_wlan->fixed = true;
1253 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1254 /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
1255 rtw_indicate_connect(adapter);
1256 }
1257 }
1258 spin_unlock_bh(&pmlmepriv->lock);
1259 mlmeext_sta_add_event_callback(adapter, psta);
1260 }
1261
rtw_stadel_event_callback(struct adapter * adapter,u8 * pbuf)1262 void rtw_stadel_event_callback(struct adapter *adapter, u8 *pbuf)
1263 {
1264 int mac_id = -1;
1265 struct sta_info *psta;
1266 struct wlan_network *pwlan = NULL;
1267 struct wlan_bssid_ex *pdev_network = NULL;
1268 u8 *pibss = NULL;
1269 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1270 struct stadel_event *pstadel = (struct stadel_event *)pbuf;
1271 struct sta_priv *pstapriv = &adapter->stapriv;
1272 struct wlan_network *tgt_network = &(pmlmepriv->cur_network);
1273
1274 psta = rtw_get_stainfo(&adapter->stapriv, pstadel->macaddr);
1275 if (psta)
1276 mac_id = psta->mac_id;
1277 else
1278 mac_id = pstadel->mac_id;
1279
1280 DBG_88E("%s(mac_id=%d)=%pM\n", __func__, mac_id, pstadel->macaddr);
1281
1282 if (mac_id >= 0) {
1283 u16 media_status;
1284 media_status = (mac_id<<8)|0; /* MACID|OPMODE:0 means disconnect */
1285 /* for STA, AP, ADHOC mode, report disconnect stauts to FW */
1286 rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status);
1287 }
1288
1289 if (check_fwstate(pmlmepriv, WIFI_AP_STATE))
1290 return;
1291
1292 mlmeext_sta_del_event_callback(adapter);
1293
1294 spin_lock_bh(&pmlmepriv->lock);
1295
1296 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
1297 if (pmlmepriv->to_roaming > 0)
1298 pmlmepriv->to_roaming--; /* this stadel_event is caused by roaming, decrease to_roaming */
1299 else if (pmlmepriv->to_roaming == 0)
1300 pmlmepriv->to_roaming = adapter->registrypriv.max_roaming_times;
1301
1302 if (*((unsigned short *)(pstadel->rsvd)) != WLAN_REASON_EXPIRATION_CHK)
1303 pmlmepriv->to_roaming = 0; /* don't roam */
1304
1305 rtw_free_uc_swdec_pending_queue(adapter);
1306
1307 rtw_free_assoc_resources(adapter, 1);
1308 rtw_indicate_disconnect(adapter);
1309 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1310 /* remove the network entry in scanned_queue */
1311 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
1312 if (pwlan) {
1313 pwlan->fixed = false;
1314 rtw_free_network_nolock(pmlmepriv, pwlan);
1315 }
1316 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1317 _rtw_roaming(adapter, tgt_network);
1318 }
1319 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
1320 check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1321 spin_lock_bh(&(pstapriv->sta_hash_lock));
1322 rtw_free_stainfo(adapter, psta);
1323 spin_unlock_bh(&pstapriv->sta_hash_lock);
1324
1325 if (adapter->stapriv.asoc_sta_count == 1) { /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
1326 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1327 /* free old ibss network */
1328 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
1329 if (pwlan) {
1330 pwlan->fixed = false;
1331 rtw_free_network_nolock(pmlmepriv, pwlan);
1332 }
1333 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1334 /* re-create ibss */
1335 pdev_network = &(adapter->registrypriv.dev_network);
1336 pibss = adapter->registrypriv.dev_network.MacAddress;
1337
1338 memcpy(pdev_network, &tgt_network->network, get_wlan_bssid_ex_sz(&tgt_network->network));
1339
1340 memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
1341
1342 rtw_update_registrypriv_dev_network(adapter);
1343
1344 rtw_generate_random_ibss(pibss);
1345
1346 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1347 set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
1348 _clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
1349 }
1350
1351 if (rtw_createbss_cmd(adapter) != _SUCCESS)
1352 RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_err_, ("***Error=>stadel_event_callback: rtw_createbss_cmd status FAIL***\n "));
1353 }
1354 }
1355 spin_unlock_bh(&pmlmepriv->lock);
1356 }
1357
rtw_cpwm_event_callback(struct adapter * padapter,u8 * pbuf)1358 void rtw_cpwm_event_callback(struct adapter *padapter, u8 *pbuf)
1359 {
1360 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_cpwm_event_callback !!!\n"));
1361 }
1362
1363 /*
1364 * _rtw_join_timeout_handler - Timeout/faliure handler for CMD JoinBss
1365 * @adapter: pointer to struct adapter structure
1366 */
_rtw_join_timeout_handler(unsigned long data)1367 void _rtw_join_timeout_handler (unsigned long data)
1368 {
1369 struct adapter *adapter = (struct adapter *)data;
1370 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1371 int do_join_r;
1372
1373 DBG_88E("%s, fw_state=%x\n", __func__, get_fwstate(pmlmepriv));
1374
1375 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1376 return;
1377
1378
1379 spin_lock_bh(&pmlmepriv->lock);
1380
1381 if (pmlmepriv->to_roaming > 0) { /* join timeout caused by roaming */
1382 while (1) {
1383 pmlmepriv->to_roaming--;
1384 if (pmlmepriv->to_roaming != 0) { /* try another , */
1385 DBG_88E("%s try another roaming\n", __func__);
1386 do_join_r = rtw_do_join(adapter);
1387 if (_SUCCESS != do_join_r) {
1388 DBG_88E("%s roaming do_join return %d\n", __func__ , do_join_r);
1389 continue;
1390 }
1391 break;
1392 } else {
1393 DBG_88E("%s We've try roaming but fail\n", __func__);
1394 rtw_indicate_disconnect(adapter);
1395 break;
1396 }
1397 }
1398 } else {
1399 rtw_indicate_disconnect(adapter);
1400 free_scanqueue(pmlmepriv);/* */
1401 }
1402 spin_unlock_bh(&pmlmepriv->lock);
1403 }
1404
1405 /*
1406 * rtw_scan_timeout_handler - Timeout/Faliure handler for CMD SiteSurvey
1407 * @adapter: pointer to struct adapter structure
1408 */
rtw_scan_timeout_handler(unsigned long data)1409 void rtw_scan_timeout_handler (unsigned long data)
1410 {
1411 struct adapter *adapter = (struct adapter *)data;
1412 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1413
1414 DBG_88E(FUNC_ADPT_FMT" fw_state=%x\n", FUNC_ADPT_ARG(adapter), get_fwstate(pmlmepriv));
1415 spin_lock_bh(&pmlmepriv->lock);
1416 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
1417 spin_unlock_bh(&pmlmepriv->lock);
1418 rtw_indicate_scan_done(adapter, true);
1419 }
1420
rtw_auto_scan_handler(struct adapter * padapter)1421 static void rtw_auto_scan_handler(struct adapter *padapter)
1422 {
1423 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1424
1425 /* auto site survey per 60sec */
1426 if (pmlmepriv->scan_interval > 0) {
1427 pmlmepriv->scan_interval--;
1428 if (pmlmepriv->scan_interval == 0) {
1429 DBG_88E("%s\n", __func__);
1430 rtw_set_802_11_bssid_list_scan(padapter, NULL, 0);
1431 pmlmepriv->scan_interval = SCAN_INTERVAL;/* 30*2 sec = 60sec */
1432 }
1433 }
1434 }
1435
rtw_dynamic_check_timer_handlder(unsigned long data)1436 void rtw_dynamic_check_timer_handlder(unsigned long data)
1437 {
1438 struct adapter *adapter = (struct adapter *)data;
1439 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1440
1441 if (!adapter)
1442 return;
1443 if (!adapter->hw_init_completed)
1444 goto exit;
1445 if ((adapter->bDriverStopped) || (adapter->bSurpriseRemoved))
1446 goto exit;
1447 if (adapter->net_closed)
1448 goto exit;
1449 rtw_dynamic_chk_wk_cmd(adapter);
1450
1451 if (pregistrypriv->wifi_spec == 1) {
1452 /* auto site survey */
1453 rtw_auto_scan_handler(adapter);
1454 }
1455 exit:
1456 mod_timer(&adapter->mlmepriv.dynamic_chk_timer,
1457 jiffies + msecs_to_jiffies(2000));
1458 }
1459
1460 #define RTW_SCAN_RESULT_EXPIRE 2000
1461
1462 /*
1463 * Select a new join candidate from the original @param candidate and @param competitor
1464 * @return true: candidate is updated
1465 * @return false: candidate is not updated
1466 */
rtw_check_join_candidate(struct mlme_priv * pmlmepriv,struct wlan_network ** candidate,struct wlan_network * competitor)1467 static int rtw_check_join_candidate(struct mlme_priv *pmlmepriv
1468 , struct wlan_network **candidate, struct wlan_network *competitor)
1469 {
1470 int updated = false;
1471 struct adapter *adapter = container_of(pmlmepriv, struct adapter, mlmepriv);
1472
1473
1474 /* check bssid, if needed */
1475 if (pmlmepriv->assoc_by_bssid) {
1476 if (memcmp(competitor->network.MacAddress, pmlmepriv->assoc_bssid, ETH_ALEN))
1477 goto exit;
1478 }
1479
1480 /* check ssid, if needed */
1481 if (pmlmepriv->assoc_ssid.SsidLength) {
1482 if (competitor->network.Ssid.SsidLength != pmlmepriv->assoc_ssid.SsidLength ||
1483 !memcmp(competitor->network.Ssid.Ssid, pmlmepriv->assoc_ssid.Ssid, pmlmepriv->assoc_ssid.SsidLength) == false)
1484 goto exit;
1485 }
1486
1487 if (rtw_is_desired_network(adapter, competitor) == false)
1488 goto exit;
1489
1490 if (pmlmepriv->to_roaming) {
1491 if (rtw_get_passing_time_ms((u32)competitor->last_scanned) >= RTW_SCAN_RESULT_EXPIRE ||
1492 is_same_ess(&competitor->network, &pmlmepriv->cur_network.network) == false)
1493 goto exit;
1494 }
1495
1496 if (*candidate == NULL || (*candidate)->network.Rssi < competitor->network.Rssi) {
1497 *candidate = competitor;
1498 updated = true;
1499 }
1500 if (updated) {
1501 DBG_88E("[by_bssid:%u][assoc_ssid:%s]new candidate: %s(%pM rssi:%d\n",
1502 pmlmepriv->assoc_by_bssid,
1503 pmlmepriv->assoc_ssid.Ssid,
1504 (*candidate)->network.Ssid.Ssid,
1505 (*candidate)->network.MacAddress,
1506 (int)(*candidate)->network.Rssi);
1507 DBG_88E("[to_roaming:%u]\n", pmlmepriv->to_roaming);
1508 }
1509
1510 exit:
1511 return updated;
1512 }
1513
1514 /*
1515 Calling context:
1516 The caller of the sub-routine will be in critical section...
1517 The caller must hold the following spinlock
1518 pmlmepriv->lock
1519 */
1520
rtw_select_and_join_from_scanned_queue(struct mlme_priv * pmlmepriv)1521 int rtw_select_and_join_from_scanned_queue(struct mlme_priv *pmlmepriv)
1522 {
1523 int ret;
1524 struct list_head *phead;
1525 struct adapter *adapter;
1526 struct __queue *queue = &(pmlmepriv->scanned_queue);
1527 struct wlan_network *pnetwork = NULL;
1528 struct wlan_network *candidate = NULL;
1529 u8 supp_ant_div = false;
1530
1531 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1532 phead = get_list_head(queue);
1533 adapter = (struct adapter *)pmlmepriv->nic_hdl;
1534 pmlmepriv->pscanned = phead->next;
1535 while (phead != pmlmepriv->pscanned) {
1536 pnetwork = container_of(pmlmepriv->pscanned, struct wlan_network, list);
1537 if (pnetwork == NULL) {
1538 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s return _FAIL:(pnetwork==NULL)\n", __func__));
1539 ret = _FAIL;
1540 goto exit;
1541 }
1542 pmlmepriv->pscanned = pmlmepriv->pscanned->next;
1543 rtw_check_join_candidate(pmlmepriv, &candidate, pnetwork);
1544 }
1545 if (candidate == NULL) {
1546 DBG_88E("%s: return _FAIL(candidate==NULL)\n", __func__);
1547 ret = _FAIL;
1548 goto exit;
1549 } else {
1550 DBG_88E("%s: candidate: %s(%pM ch:%u)\n", __func__,
1551 candidate->network.Ssid.Ssid, candidate->network.MacAddress,
1552 candidate->network.Configuration.DSConfig);
1553 }
1554
1555
1556 /* check for situation of _FW_LINKED */
1557 if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
1558 DBG_88E("%s: _FW_LINKED while ask_for_joinbss!!!\n", __func__);
1559
1560 rtw_disassoc_cmd(adapter, 0, true);
1561 rtw_indicate_disconnect(adapter);
1562 rtw_free_assoc_resources(adapter, 0);
1563 }
1564
1565 rtw_hal_get_def_var(adapter, HAL_DEF_IS_SUPPORT_ANT_DIV, &(supp_ant_div));
1566 if (supp_ant_div) {
1567 u8 cur_ant;
1568 rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(cur_ant));
1569 DBG_88E("#### Opt_Ant_(%s), cur_Ant(%s)\n",
1570 (2 == candidate->network.PhyInfo.Optimum_antenna) ? "A" : "B",
1571 (2 == cur_ant) ? "A" : "B"
1572 );
1573 }
1574
1575 ret = rtw_joinbss_cmd(adapter, candidate);
1576
1577 exit:
1578 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1579 return ret;
1580 }
1581
rtw_set_auth(struct adapter * adapter,struct security_priv * psecuritypriv)1582 int rtw_set_auth(struct adapter *adapter, struct security_priv *psecuritypriv)
1583 {
1584 struct cmd_obj *pcmd;
1585 struct setauth_parm *psetauthparm;
1586 struct cmd_priv *pcmdpriv = &(adapter->cmdpriv);
1587 int res = _SUCCESS;
1588
1589 pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
1590 if (pcmd == NULL) {
1591 res = _FAIL; /* try again */
1592 goto exit;
1593 }
1594
1595 psetauthparm = kzalloc(sizeof(struct setauth_parm), GFP_KERNEL);
1596 if (psetauthparm == NULL) {
1597 kfree(pcmd);
1598 res = _FAIL;
1599 goto exit;
1600 }
1601 memset(psetauthparm, 0, sizeof(struct setauth_parm));
1602 psetauthparm->mode = (unsigned char)psecuritypriv->dot11AuthAlgrthm;
1603 pcmd->cmdcode = _SetAuth_CMD_;
1604 pcmd->parmbuf = (unsigned char *)psetauthparm;
1605 pcmd->cmdsz = (sizeof(struct setauth_parm));
1606 pcmd->rsp = NULL;
1607 pcmd->rspsz = 0;
1608 INIT_LIST_HEAD(&pcmd->list);
1609 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1610 ("after enqueue set_auth_cmd, auth_mode=%x\n",
1611 psecuritypriv->dot11AuthAlgrthm));
1612 res = rtw_enqueue_cmd(pcmdpriv, pcmd);
1613 exit:
1614 return res;
1615 }
1616
rtw_set_key(struct adapter * adapter,struct security_priv * psecuritypriv,int keyid,u8 set_tx)1617 int rtw_set_key(struct adapter *adapter, struct security_priv *psecuritypriv, int keyid, u8 set_tx)
1618 {
1619 u8 keylen;
1620 struct cmd_obj *pcmd;
1621 struct setkey_parm *psetkeyparm;
1622 struct cmd_priv *pcmdpriv = &(adapter->cmdpriv);
1623 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1624 int res = _SUCCESS;
1625
1626 pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
1627 if (pcmd == NULL)
1628 return _FAIL; /* try again */
1629
1630 psetkeyparm = kzalloc(sizeof(struct setkey_parm), GFP_KERNEL);
1631 if (psetkeyparm == NULL) {
1632 res = _FAIL;
1633 goto err_free_cmd;
1634 }
1635
1636 memset(psetkeyparm, 0, sizeof(struct setkey_parm));
1637
1638 if (psecuritypriv->dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
1639 psetkeyparm->algorithm = (unsigned char)psecuritypriv->dot118021XGrpPrivacy;
1640 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1641 ("\n rtw_set_key: psetkeyparm->algorithm=(unsigned char)psecuritypriv->dot118021XGrpPrivacy=%d\n",
1642 psetkeyparm->algorithm));
1643 } else {
1644 psetkeyparm->algorithm = (u8)psecuritypriv->dot11PrivacyAlgrthm;
1645 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1646 ("\n rtw_set_key: psetkeyparm->algorithm=(u8)psecuritypriv->dot11PrivacyAlgrthm=%d\n",
1647 psetkeyparm->algorithm));
1648 }
1649 psetkeyparm->keyid = (u8)keyid;/* 0~3 */
1650 psetkeyparm->set_tx = set_tx;
1651 pmlmepriv->key_mask |= BIT(psetkeyparm->keyid);
1652 DBG_88E("==> rtw_set_key algorithm(%x), keyid(%x), key_mask(%x)\n",
1653 psetkeyparm->algorithm, psetkeyparm->keyid, pmlmepriv->key_mask);
1654 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1655 ("\n rtw_set_key: psetkeyparm->algorithm=%d psetkeyparm->keyid=(u8)keyid=%d\n",
1656 psetkeyparm->algorithm, keyid));
1657
1658 switch (psetkeyparm->algorithm) {
1659 case _WEP40_:
1660 keylen = 5;
1661 memcpy(&(psetkeyparm->key[0]), &(psecuritypriv->dot11DefKey[keyid].skey[0]), keylen);
1662 break;
1663 case _WEP104_:
1664 keylen = 13;
1665 memcpy(&(psetkeyparm->key[0]), &(psecuritypriv->dot11DefKey[keyid].skey[0]), keylen);
1666 break;
1667 case _TKIP_:
1668 keylen = 16;
1669 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
1670 psetkeyparm->grpkey = 1;
1671 break;
1672 case _AES_:
1673 keylen = 16;
1674 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
1675 psetkeyparm->grpkey = 1;
1676 break;
1677 default:
1678 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1679 ("\n rtw_set_key:psecuritypriv->dot11PrivacyAlgrthm=%x (must be 1 or 2 or 4 or 5)\n",
1680 psecuritypriv->dot11PrivacyAlgrthm));
1681 res = _FAIL;
1682 goto err_free_parm;
1683 }
1684 pcmd->cmdcode = _SetKey_CMD_;
1685 pcmd->parmbuf = (u8 *)psetkeyparm;
1686 pcmd->cmdsz = (sizeof(struct setkey_parm));
1687 pcmd->rsp = NULL;
1688 pcmd->rspsz = 0;
1689 INIT_LIST_HEAD(&pcmd->list);
1690 res = rtw_enqueue_cmd(pcmdpriv, pcmd);
1691 return res;
1692
1693 err_free_parm:
1694 kfree(psetkeyparm);
1695 err_free_cmd:
1696 kfree(pcmd);
1697 return res;
1698 }
1699
1700 /* 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)1701 int rtw_restruct_wmm_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len, uint initial_out_len)
1702 {
1703 unsigned int ielength = 0;
1704 unsigned int i, j;
1705
1706 i = 12; /* after the fixed IE */
1707 while (i < in_len) {
1708 ielength = initial_out_len;
1709
1710 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) {
1711 /* WMM element ID and OUI */
1712 /* Append WMM IE to the last index of out_ie */
1713
1714 for (j = i; j < i + 9; j++) {
1715 out_ie[ielength] = in_ie[j];
1716 ielength++;
1717 }
1718 out_ie[initial_out_len + 1] = 0x07;
1719 out_ie[initial_out_len + 6] = 0x00;
1720 out_ie[initial_out_len + 8] = 0x00;
1721 break;
1722 }
1723 i += (in_ie[i+1]+2); /* to the next IE element */
1724 }
1725 return ielength;
1726 }
1727
1728 /*
1729 * Ported from 8185: IsInPreAuthKeyList().
1730 * (Renamed from SecIsInPreAuthKeyList(), 2006-10-13.)
1731 * Added by Annie, 2006-05-07.
1732 * Search by BSSID,
1733 * Return Value:
1734 * -1 :if there is no pre-auth key in the table
1735 * >= 0 :if there is pre-auth key, and return the entry id
1736 */
SecIsInPMKIDList(struct adapter * Adapter,u8 * bssid)1737 static int SecIsInPMKIDList(struct adapter *Adapter, u8 *bssid)
1738 {
1739 struct security_priv *psecuritypriv = &Adapter->securitypriv;
1740 int i = 0;
1741
1742 do {
1743 if ((psecuritypriv->PMKIDList[i].bUsed) &&
1744 (!memcmp(psecuritypriv->PMKIDList[i].Bssid, bssid, ETH_ALEN))) {
1745 break;
1746 } else {
1747 i++;
1748 /* continue; */
1749 }
1750
1751 } while (i < NUM_PMKID_CACHE);
1752
1753 if (i == NUM_PMKID_CACHE)
1754 i = -1;/* Could not find. */
1755
1756 return i;
1757 }
1758
1759 /* */
1760 /* Check the RSN IE length */
1761 /* If the RSN IE length <= 20, the RSN IE didn't include the PMKID information */
1762 /* 0-11th element in the array are the fixed IE */
1763 /* 12th element in the array is the IE */
1764 /* 13th element in the array is the IE length */
1765 /* */
1766
rtw_append_pmkid(struct adapter * Adapter,int iEntry,u8 * ie,uint ie_len)1767 static int rtw_append_pmkid(struct adapter *Adapter, int iEntry, u8 *ie, uint ie_len)
1768 {
1769 struct security_priv *psecuritypriv = &Adapter->securitypriv;
1770
1771 if (ie[13] <= 20) {
1772 /* The RSN IE didn't include the PMK ID, append the PMK information */
1773 ie[ie_len] = 1;
1774 ie_len++;
1775 ie[ie_len] = 0; /* PMKID count = 0x0100 */
1776 ie_len++;
1777 memcpy(&ie[ie_len], &psecuritypriv->PMKIDList[iEntry].PMKID, 16);
1778
1779 ie_len += 16;
1780 ie[13] += 18;/* PMKID length = 2+16 */
1781 }
1782 return ie_len;
1783 }
1784
rtw_restruct_sec_ie(struct adapter * adapter,u8 * in_ie,u8 * out_ie,uint in_len)1785 int rtw_restruct_sec_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len)
1786 {
1787 u8 authmode;
1788 uint ielength;
1789 int iEntry;
1790
1791 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1792 struct security_priv *psecuritypriv = &adapter->securitypriv;
1793 uint ndisauthmode = psecuritypriv->ndisauthtype;
1794 uint ndissecuritytype = psecuritypriv->ndisencryptstatus;
1795
1796 RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_,
1797 ("+rtw_restruct_sec_ie: ndisauthmode=%d ndissecuritytype=%d\n",
1798 ndisauthmode, ndissecuritytype));
1799
1800 /* copy fixed ie only */
1801 memcpy(out_ie, in_ie, 12);
1802 ielength = 12;
1803 if ((ndisauthmode == Ndis802_11AuthModeWPA) ||
1804 (ndisauthmode == Ndis802_11AuthModeWPAPSK))
1805 authmode = _WPA_IE_ID_;
1806 if ((ndisauthmode == Ndis802_11AuthModeWPA2) ||
1807 (ndisauthmode == Ndis802_11AuthModeWPA2PSK))
1808 authmode = _WPA2_IE_ID_;
1809
1810 if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
1811 memcpy(out_ie+ielength, psecuritypriv->wps_ie, psecuritypriv->wps_ie_len);
1812
1813 ielength += psecuritypriv->wps_ie_len;
1814 } else if ((authmode == _WPA_IE_ID_) || (authmode == _WPA2_IE_ID_)) {
1815 /* copy RSN or SSN */
1816 memcpy(&out_ie[ielength], &psecuritypriv->supplicant_ie[0], psecuritypriv->supplicant_ie[1]+2);
1817 ielength += psecuritypriv->supplicant_ie[1]+2;
1818 rtw_report_sec_ie(adapter, authmode, psecuritypriv->supplicant_ie);
1819 }
1820
1821 iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
1822 if (iEntry < 0) {
1823 return ielength;
1824 } else {
1825 if (authmode == _WPA2_IE_ID_)
1826 ielength = rtw_append_pmkid(adapter, iEntry, out_ie, ielength);
1827 }
1828 return ielength;
1829 }
1830
rtw_init_registrypriv_dev_network(struct adapter * adapter)1831 void rtw_init_registrypriv_dev_network(struct adapter *adapter)
1832 {
1833 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1834 struct eeprom_priv *peepriv = &adapter->eeprompriv;
1835 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1836 u8 *myhwaddr = myid(peepriv);
1837
1838 memcpy(pdev_network->MacAddress, myhwaddr, ETH_ALEN);
1839
1840 memcpy(&pdev_network->Ssid, &pregistrypriv->ssid, sizeof(struct ndis_802_11_ssid));
1841
1842 pdev_network->Configuration.Length = sizeof(struct ndis_802_11_config);
1843 pdev_network->Configuration.BeaconPeriod = 100;
1844 pdev_network->Configuration.FHConfig.Length = 0;
1845 pdev_network->Configuration.FHConfig.HopPattern = 0;
1846 pdev_network->Configuration.FHConfig.HopSet = 0;
1847 pdev_network->Configuration.FHConfig.DwellTime = 0;
1848 }
1849
rtw_update_registrypriv_dev_network(struct adapter * adapter)1850 void rtw_update_registrypriv_dev_network(struct adapter *adapter)
1851 {
1852 int sz = 0;
1853 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1854 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1855 struct security_priv *psecuritypriv = &adapter->securitypriv;
1856 struct wlan_network *cur_network = &adapter->mlmepriv.cur_network;
1857
1858 pdev_network->Privacy = (psecuritypriv->dot11PrivacyAlgrthm > 0 ? 1 : 0); /* adhoc no 802.1x */
1859
1860 pdev_network->Rssi = 0;
1861
1862 switch (pregistrypriv->wireless_mode) {
1863 case WIRELESS_11B:
1864 pdev_network->NetworkTypeInUse = (Ndis802_11DS);
1865 break;
1866 case WIRELESS_11G:
1867 case WIRELESS_11BG:
1868 case WIRELESS_11_24N:
1869 case WIRELESS_11G_24N:
1870 case WIRELESS_11BG_24N:
1871 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM24);
1872 break;
1873 case WIRELESS_11A:
1874 case WIRELESS_11A_5N:
1875 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM5);
1876 break;
1877 case WIRELESS_11ABGN:
1878 if (pregistrypriv->channel > 14)
1879 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM5);
1880 else
1881 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM24);
1882 break;
1883 default:
1884 /* TODO */
1885 break;
1886 }
1887
1888 pdev_network->Configuration.DSConfig = (pregistrypriv->channel);
1889 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
1890 ("pregistrypriv->channel=%d, pdev_network->Configuration.DSConfig=0x%x\n",
1891 pregistrypriv->channel, pdev_network->Configuration.DSConfig));
1892
1893 if (cur_network->network.InfrastructureMode == Ndis802_11IBSS)
1894 pdev_network->Configuration.ATIMWindow = (0);
1895
1896 pdev_network->InfrastructureMode = (cur_network->network.InfrastructureMode);
1897
1898 /* 1. Supported rates */
1899 /* 2. IE */
1900
1901 sz = rtw_generate_ie(pregistrypriv);
1902 pdev_network->IELength = sz;
1903 pdev_network->Length = get_wlan_bssid_ex_sz((struct wlan_bssid_ex *)pdev_network);
1904
1905 /* notes: translate IELength & Length after assign the Length to cmdsz in createbss_cmd(); */
1906 /* pdev_network->IELength = cpu_to_le32(sz); */
1907 }
1908
rtw_get_encrypt_decrypt_from_registrypriv(struct adapter * adapter)1909 void rtw_get_encrypt_decrypt_from_registrypriv(struct adapter *adapter)
1910 {
1911 }
1912
1913 /* the function is at passive_level */
rtw_joinbss_reset(struct adapter * padapter)1914 void rtw_joinbss_reset(struct adapter *padapter)
1915 {
1916 u8 threshold;
1917 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1918 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1919
1920 /* todo: if you want to do something io/reg/hw setting before join_bss, please add code here */
1921 pmlmepriv->num_FortyMHzIntolerant = 0;
1922
1923 pmlmepriv->num_sta_no_ht = 0;
1924
1925 phtpriv->ampdu_enable = false;/* reset to disabled */
1926
1927 /* TH = 1 => means that invalidate usb rx aggregation */
1928 /* TH = 0 => means that validate usb rx aggregation, use init value. */
1929 if (phtpriv->ht_option) {
1930 if (padapter->registrypriv.wifi_spec == 1)
1931 threshold = 1;
1932 else
1933 threshold = 0;
1934 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
1935 } else {
1936 threshold = 1;
1937 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
1938 }
1939 }
1940
1941 /* the function is >= passive_level */
rtw_restructure_ht_ie(struct adapter * padapter,u8 * in_ie,u8 * out_ie,uint in_len,uint * pout_len)1942 unsigned int rtw_restructure_ht_ie(struct adapter *padapter, u8 *in_ie, u8 *out_ie, uint in_len, uint *pout_len)
1943 {
1944 u32 ielen, out_len;
1945 enum ht_cap_ampdu_factor max_rx_ampdu_factor;
1946 unsigned char *p;
1947 struct rtw_ieee80211_ht_cap ht_capie;
1948 unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
1949 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1950 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
1951 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1952 u32 rx_packet_offset, max_recvbuf_sz;
1953
1954
1955 phtpriv->ht_option = false;
1956
1957 p = rtw_get_ie(in_ie+12, _HT_CAPABILITY_IE_, &ielen, in_len-12);
1958
1959 if (p && ielen > 0) {
1960 if (pqospriv->qos_option == 0) {
1961 out_len = *pout_len;
1962 rtw_set_ie(out_ie+out_len, _VENDOR_SPECIFIC_IE_,
1963 _WMM_IE_Length_, WMM_IE, pout_len);
1964
1965 pqospriv->qos_option = 1;
1966 }
1967
1968 out_len = *pout_len;
1969
1970 memset(&ht_capie, 0, sizeof(struct rtw_ieee80211_ht_cap));
1971
1972 ht_capie.cap_info = IEEE80211_HT_CAP_SUP_WIDTH |
1973 IEEE80211_HT_CAP_SGI_20 |
1974 IEEE80211_HT_CAP_SGI_40 |
1975 IEEE80211_HT_CAP_TX_STBC |
1976 IEEE80211_HT_CAP_DSSSCCK40;
1977
1978 rtw_hal_get_def_var(padapter, HAL_DEF_RX_PACKET_OFFSET, &rx_packet_offset);
1979 rtw_hal_get_def_var(padapter, HAL_DEF_MAX_RECVBUF_SZ, &max_recvbuf_sz);
1980
1981 /*
1982 AMPDU_para [1:0]:Max AMPDU Len => 0:8k , 1:16k, 2:32k, 3:64k
1983 AMPDU_para [4:2]:Min MPDU Start Spacing
1984 */
1985
1986 rtw_hal_get_def_var(padapter, HW_VAR_MAX_RX_AMPDU_FACTOR, &max_rx_ampdu_factor);
1987 ht_capie.ampdu_params_info = (max_rx_ampdu_factor&0x03);
1988
1989 if (padapter->securitypriv.dot11PrivacyAlgrthm == _AES_)
1990 ht_capie.ampdu_params_info |= (IEEE80211_HT_CAP_AMPDU_DENSITY&(0x07<<2));
1991 else
1992 ht_capie.ampdu_params_info |= (IEEE80211_HT_CAP_AMPDU_DENSITY&0x00);
1993
1994
1995 rtw_set_ie(out_ie+out_len, _HT_CAPABILITY_IE_,
1996 sizeof(struct rtw_ieee80211_ht_cap), (unsigned char *)&ht_capie, pout_len);
1997
1998 phtpriv->ht_option = true;
1999
2000 p = rtw_get_ie(in_ie+12, _HT_ADD_INFO_IE_, &ielen, in_len-12);
2001 if (p && (ielen == sizeof(struct ieee80211_ht_addt_info))) {
2002 out_len = *pout_len;
2003 rtw_set_ie(out_ie+out_len, _HT_ADD_INFO_IE_, ielen, p+2 , pout_len);
2004 }
2005 }
2006 return phtpriv->ht_option;
2007 }
2008
2009 /* the function is > passive_level (in critical_section) */
rtw_update_ht_cap(struct adapter * padapter,u8 * pie,uint ie_len)2010 void rtw_update_ht_cap(struct adapter *padapter, u8 *pie, uint ie_len)
2011 {
2012 u8 *p, max_ampdu_sz;
2013 int len;
2014 struct rtw_ieee80211_ht_cap *pht_capie;
2015 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2016 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
2017 struct registry_priv *pregistrypriv = &padapter->registrypriv;
2018 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
2019 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
2020
2021 if (!phtpriv->ht_option)
2022 return;
2023
2024 if ((!pmlmeinfo->HT_info_enable) || (!pmlmeinfo->HT_caps_enable))
2025 return;
2026
2027 DBG_88E("+rtw_update_ht_cap()\n");
2028
2029 /* maybe needs check if ap supports rx ampdu. */
2030 if ((!phtpriv->ampdu_enable) && (pregistrypriv->ampdu_enable == 1)) {
2031 if (pregistrypriv->wifi_spec == 1)
2032 phtpriv->ampdu_enable = false;
2033 else
2034 phtpriv->ampdu_enable = true;
2035 } else if (pregistrypriv->ampdu_enable == 2) {
2036 phtpriv->ampdu_enable = true;
2037 }
2038
2039
2040 /* check Max Rx A-MPDU Size */
2041 len = 0;
2042 p = rtw_get_ie(pie+sizeof(struct ndis_802_11_fixed_ie), _HT_CAPABILITY_IE_, &len, ie_len-sizeof(struct ndis_802_11_fixed_ie));
2043 if (p && len > 0) {
2044 pht_capie = (struct rtw_ieee80211_ht_cap *)(p+2);
2045 max_ampdu_sz = pht_capie->ampdu_params_info & IEEE80211_HT_CAP_AMPDU_FACTOR;
2046 max_ampdu_sz = 1 << (max_ampdu_sz+3); /* max_ampdu_sz (kbytes); */
2047 phtpriv->rx_ampdu_maxlen = max_ampdu_sz;
2048 }
2049 len = 0;
2050 p = rtw_get_ie(pie+sizeof(struct ndis_802_11_fixed_ie), _HT_ADD_INFO_IE_, &len, ie_len-sizeof(struct ndis_802_11_fixed_ie));
2051
2052 /* update cur_bwmode & cur_ch_offset */
2053 if ((pregistrypriv->cbw40_enable) &&
2054 (le16_to_cpu(pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info) & BIT(1)) &&
2055 (pmlmeinfo->HT_info.infos[0] & BIT(2))) {
2056 int i;
2057 u8 rf_type;
2058
2059 padapter->HalFunc.GetHwRegHandler(padapter, HW_VAR_RF_TYPE, (u8 *)(&rf_type));
2060
2061 /* update the MCS rates */
2062 for (i = 0; i < 16; i++) {
2063 if ((rf_type == RF_1T1R) || (rf_type == RF_1T2R))
2064 pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= MCS_rate_1R[i];
2065 else
2066 pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= MCS_rate_2R[i];
2067 }
2068 /* switch to the 40M Hz mode according to the AP */
2069 pmlmeext->cur_bwmode = HT_CHANNEL_WIDTH_40;
2070 switch ((pmlmeinfo->HT_info.infos[0] & 0x3)) {
2071 case HT_EXTCHNL_OFFSET_UPPER:
2072 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_LOWER;
2073 break;
2074 case HT_EXTCHNL_OFFSET_LOWER:
2075 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_UPPER;
2076 break;
2077 default:
2078 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
2079 break;
2080 }
2081 }
2082
2083 /* Config SM Power Save setting */
2084 pmlmeinfo->SM_PS = (le16_to_cpu(pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info) & 0x0C) >> 2;
2085 if (pmlmeinfo->SM_PS == WLAN_HT_CAP_SM_PS_STATIC)
2086 DBG_88E("%s(): WLAN_HT_CAP_SM_PS_STATIC\n", __func__);
2087
2088 /* Config current HT Protection mode. */
2089 pmlmeinfo->HT_protection = pmlmeinfo->HT_info.infos[1] & 0x3;
2090 }
2091
rtw_issue_addbareq_cmd(struct adapter * padapter,struct xmit_frame * pxmitframe)2092 void rtw_issue_addbareq_cmd(struct adapter *padapter, struct xmit_frame *pxmitframe)
2093 {
2094 u8 issued;
2095 int priority;
2096 struct sta_info *psta = NULL;
2097 struct ht_priv *phtpriv;
2098 struct pkt_attrib *pattrib = &pxmitframe->attrib;
2099 s32 bmcst = IS_MCAST(pattrib->ra);
2100
2101 if (bmcst || (padapter->mlmepriv.LinkDetectInfo.NumTxOkInPeriod < 100))
2102 return;
2103
2104 priority = pattrib->priority;
2105
2106 if (pattrib->psta)
2107 psta = pattrib->psta;
2108 else
2109 psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
2110
2111 if (psta == NULL)
2112 return;
2113
2114 phtpriv = &psta->htpriv;
2115
2116 if ((phtpriv->ht_option) && (phtpriv->ampdu_enable)) {
2117 issued = (phtpriv->agg_enable_bitmap>>priority)&0x1;
2118 issued |= (phtpriv->candidate_tid_bitmap>>priority)&0x1;
2119
2120 if (0 == issued) {
2121 DBG_88E("rtw_issue_addbareq_cmd, p=%d\n", priority);
2122 psta->htpriv.candidate_tid_bitmap |= BIT((u8)priority);
2123 rtw_addbareq_cmd(padapter, (u8)priority, pattrib->ra);
2124 }
2125 }
2126 }
2127
rtw_roaming(struct adapter * padapter,struct wlan_network * tgt_network)2128 void rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
2129 {
2130 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2131
2132 spin_lock_bh(&pmlmepriv->lock);
2133 _rtw_roaming(padapter, tgt_network);
2134 spin_unlock_bh(&pmlmepriv->lock);
2135 }
_rtw_roaming(struct adapter * padapter,struct wlan_network * tgt_network)2136 void _rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
2137 {
2138 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2139 int do_join_r;
2140
2141 struct wlan_network *pnetwork;
2142
2143 if (tgt_network != NULL)
2144 pnetwork = tgt_network;
2145 else
2146 pnetwork = &pmlmepriv->cur_network;
2147
2148 if (0 < pmlmepriv->to_roaming) {
2149 DBG_88E("roaming from %s(%pM length:%d\n",
2150 pnetwork->network.Ssid.Ssid, pnetwork->network.MacAddress,
2151 pnetwork->network.Ssid.SsidLength);
2152 memcpy(&pmlmepriv->assoc_ssid, &pnetwork->network.Ssid, sizeof(struct ndis_802_11_ssid));
2153
2154 pmlmepriv->assoc_by_bssid = false;
2155
2156 while (1) {
2157 do_join_r = rtw_do_join(padapter);
2158 if (_SUCCESS == do_join_r) {
2159 break;
2160 } else {
2161 DBG_88E("roaming do_join return %d\n", do_join_r);
2162 pmlmepriv->to_roaming--;
2163
2164 if (0 < pmlmepriv->to_roaming) {
2165 continue;
2166 } else {
2167 DBG_88E("%s(%d) -to roaming fail, indicate_disconnect\n", __func__, __LINE__);
2168 rtw_indicate_disconnect(padapter);
2169 break;
2170 }
2171 }
2172 }
2173 }
2174 }
2175