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 _set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
669 } else {
670 struct wlan_bssid_ex *pdev_network = &(adapter->registrypriv.dev_network);
671 u8 *pibss = adapter->registrypriv.dev_network.MacAddress;
672
673 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
674
675 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("switching to adhoc master\n"));
676
677 memset(&pdev_network->Ssid, 0, sizeof(struct ndis_802_11_ssid));
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 _set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
697 } else if (s_ret == 2) { /* there is no need to wait for join */
698 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
699 rtw_indicate_connect(adapter);
700 } else {
701 DBG_88E("try_to_join, but select scanning queue fail, to_roaming:%d\n", pmlmepriv->to_roaming);
702 if (pmlmepriv->to_roaming != 0) {
703 if (--pmlmepriv->to_roaming == 0 ||
704 _SUCCESS != rtw_sitesurvey_cmd(adapter, &pmlmepriv->assoc_ssid, 1, NULL, 0)) {
705 pmlmepriv->to_roaming = 0;
706 rtw_free_assoc_resources(adapter, 1);
707 rtw_indicate_disconnect(adapter);
708 } else {
709 pmlmepriv->to_join = true;
710 }
711 }
712 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
713 }
714 }
715 }
716
717 indicate_wx_scan_complete_event(adapter);
718
719 spin_unlock_bh(&pmlmepriv->lock);
720
721 rtw_os_xmit_schedule(adapter);
722
723 pmlmeext = &adapter->mlmeextpriv;
724 }
725
rtw_dummy_event_callback(struct adapter * adapter,u8 * pbuf)726 void rtw_dummy_event_callback(struct adapter *adapter , u8 *pbuf)
727 {
728 }
729
rtw_fwdbg_event_callback(struct adapter * adapter,u8 * pbuf)730 void rtw_fwdbg_event_callback(struct adapter *adapter , u8 *pbuf)
731 {
732 }
733
free_scanqueue(struct mlme_priv * pmlmepriv)734 static void free_scanqueue(struct mlme_priv *pmlmepriv)
735 {
736 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
737 struct __queue *scan_queue = &pmlmepriv->scanned_queue;
738 struct list_head *plist, *phead, *ptemp;
739
740 RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, ("+free_scanqueue\n"));
741 spin_lock_bh(&scan_queue->lock);
742 spin_lock_bh(&free_queue->lock);
743
744 phead = get_list_head(scan_queue);
745 plist = phead->next;
746
747 while (plist != phead) {
748 ptemp = plist->next;
749 list_del_init(plist);
750 list_add_tail(plist, &free_queue->queue);
751 plist = ptemp;
752 pmlmepriv->num_of_scanned--;
753 }
754
755 spin_unlock_bh(&free_queue->lock);
756 spin_unlock_bh(&scan_queue->lock);
757 }
758
759 /*
760 *rtw_free_assoc_resources: the caller has to lock pmlmepriv->lock
761 */
rtw_free_assoc_resources(struct adapter * adapter,int lock_scanned_queue)762 void rtw_free_assoc_resources(struct adapter *adapter, int lock_scanned_queue)
763 {
764 struct wlan_network *pwlan = NULL;
765 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
766 struct sta_priv *pstapriv = &adapter->stapriv;
767 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
768
769 RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, ("+rtw_free_assoc_resources\n"));
770 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
771 ("tgt_network->network.MacAddress=%pM ssid=%s\n",
772 tgt_network->network.MacAddress, tgt_network->network.Ssid.Ssid));
773
774 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE)) {
775 struct sta_info *psta;
776
777 psta = rtw_get_stainfo(&adapter->stapriv, tgt_network->network.MacAddress);
778
779 spin_lock_bh(&(pstapriv->sta_hash_lock));
780 rtw_free_stainfo(adapter, psta);
781 spin_unlock_bh(&pstapriv->sta_hash_lock);
782 }
783
784 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE | WIFI_AP_STATE)) {
785 struct sta_info *psta;
786
787 rtw_free_all_stainfo(adapter);
788
789 psta = rtw_get_bcmc_stainfo(adapter);
790 spin_lock_bh(&(pstapriv->sta_hash_lock));
791 rtw_free_stainfo(adapter, psta);
792 spin_unlock_bh(&pstapriv->sta_hash_lock);
793
794 rtw_init_bcmc_stainfo(adapter);
795 }
796
797 if (lock_scanned_queue)
798 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
799
800 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
801 if (pwlan)
802 pwlan->fixed = false;
803 else
804 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_free_assoc_resources:pwlan==NULL\n\n"));
805
806 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) && (adapter->stapriv.asoc_sta_count == 1)))
807 rtw_free_network_nolock(pmlmepriv, pwlan);
808
809 if (lock_scanned_queue)
810 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
811 pmlmepriv->key_mask = 0;
812 }
813
814 /*
815 *rtw_indicate_connect: the caller has to lock pmlmepriv->lock
816 */
rtw_indicate_connect(struct adapter * padapter)817 void rtw_indicate_connect(struct adapter *padapter)
818 {
819 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
820
821 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_indicate_connect\n"));
822
823 pmlmepriv->to_join = false;
824
825 if (!check_fwstate(&padapter->mlmepriv, _FW_LINKED)) {
826 set_fwstate(pmlmepriv, _FW_LINKED);
827
828 rtw_led_control(padapter, LED_CTL_LINK);
829
830 rtw_os_indicate_connect(padapter);
831 }
832
833 pmlmepriv->to_roaming = 0;
834
835 rtw_set_scan_deny(padapter, 3000);
836
837 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("-rtw_indicate_connect: fw_state=0x%08x\n", get_fwstate(pmlmepriv)));
838 }
839
840 /*
841 *rtw_indicate_disconnect: the caller has to lock pmlmepriv->lock
842 */
rtw_indicate_disconnect(struct adapter * padapter)843 void rtw_indicate_disconnect(struct adapter *padapter)
844 {
845 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
846
847 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_indicate_disconnect\n"));
848
849 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING | WIFI_UNDER_WPS);
850
851
852 if (pmlmepriv->to_roaming > 0)
853 _clr_fwstate_(pmlmepriv, _FW_LINKED);
854
855 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) ||
856 (pmlmepriv->to_roaming <= 0)) {
857 rtw_os_indicate_disconnect(padapter);
858
859 _clr_fwstate_(pmlmepriv, _FW_LINKED);
860 rtw_led_control(padapter, LED_CTL_NO_LINK);
861 rtw_clear_scan_deny(padapter);
862 }
863
864 rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_DISCONNECT, 1);
865 }
866
rtw_indicate_scan_done(struct adapter * padapter,bool aborted)867 inline void rtw_indicate_scan_done(struct adapter *padapter, bool aborted)
868 {
869 rtw_os_indicate_scan_done(padapter, aborted);
870 }
871
rtw_scan_abort(struct adapter * adapter)872 void rtw_scan_abort(struct adapter *adapter)
873 {
874 u32 start;
875 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
876 struct mlme_ext_priv *pmlmeext = &(adapter->mlmeextpriv);
877
878 start = jiffies;
879 pmlmeext->scan_abort = true;
880 while (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY) &&
881 rtw_get_passing_time_ms(start) <= 200) {
882 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
883 break;
884 DBG_88E(FUNC_NDEV_FMT"fw_state=_FW_UNDER_SURVEY!\n", FUNC_NDEV_ARG(adapter->pnetdev));
885 msleep(20);
886 }
887 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
888 if (!adapter->bDriverStopped && !adapter->bSurpriseRemoved)
889 DBG_88E(FUNC_NDEV_FMT"waiting for scan_abort time out!\n", FUNC_NDEV_ARG(adapter->pnetdev));
890 rtw_indicate_scan_done(adapter, true);
891 }
892 pmlmeext->scan_abort = false;
893 }
894
rtw_joinbss_update_stainfo(struct adapter * padapter,struct wlan_network * pnetwork)895 static struct sta_info *rtw_joinbss_update_stainfo(struct adapter *padapter, struct wlan_network *pnetwork)
896 {
897 int i;
898 struct sta_info *bmc_sta, *psta = NULL;
899 struct recv_reorder_ctrl *preorder_ctrl;
900 struct sta_priv *pstapriv = &padapter->stapriv;
901
902 psta = rtw_get_stainfo(pstapriv, pnetwork->network.MacAddress);
903 if (psta == NULL)
904 psta = rtw_alloc_stainfo(pstapriv, pnetwork->network.MacAddress);
905
906 if (psta) { /* update ptarget_sta */
907 DBG_88E("%s\n", __func__);
908 psta->aid = pnetwork->join_res;
909 psta->mac_id = 0;
910 /* sta mode */
911 rtw_hal_set_odm_var(padapter, HAL_ODM_STA_INFO, psta, true);
912 /* security related */
913 if (padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
914 padapter->securitypriv.binstallGrpkey = false;
915 padapter->securitypriv.busetkipkey = false;
916 padapter->securitypriv.bgrpkey_handshake = false;
917 psta->ieee8021x_blocked = true;
918 psta->dot118021XPrivacy = padapter->securitypriv.dot11PrivacyAlgrthm;
919 memset((u8 *)&psta->dot118021x_UncstKey, 0, sizeof(union Keytype));
920 memset((u8 *)&psta->dot11tkiprxmickey, 0, sizeof(union Keytype));
921 memset((u8 *)&psta->dot11tkiptxmickey, 0, sizeof(union Keytype));
922 memset((u8 *)&psta->dot11txpn, 0, sizeof(union pn48));
923 memset((u8 *)&psta->dot11rxpn, 0, sizeof(union pn48));
924 }
925 /*
926 * Commented by Albert 2012/07/21
927 * When doing the WPS, the wps_ie_len won't equal to 0
928 * And the Wi-Fi driver shouldn't allow the data
929 * packet to be tramsmitted.
930 */
931 if (padapter->securitypriv.wps_ie_len != 0) {
932 psta->ieee8021x_blocked = true;
933 padapter->securitypriv.wps_ie_len = 0;
934 }
935 /* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info */
936 /* if A-MPDU Rx is enabled, resetting rx_ordering_ctrl wstart_b(indicate_seq) to default value = 0xffff */
937 /* todo: check if AP can send A-MPDU packets */
938 for (i = 0; i < 16; i++) {
939 /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
940 preorder_ctrl = &psta->recvreorder_ctrl[i];
941 preorder_ctrl->enable = false;
942 preorder_ctrl->indicate_seq = 0xffff;
943 preorder_ctrl->wend_b = 0xffff;
944 preorder_ctrl->wsize_b = 64;/* max_ampdu_sz; ex. 32(kbytes) -> wsize_b = 32 */
945 }
946 bmc_sta = rtw_get_bcmc_stainfo(padapter);
947 if (bmc_sta) {
948 for (i = 0; i < 16; i++) {
949 /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
950 preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
951 preorder_ctrl->enable = false;
952 preorder_ctrl->indicate_seq = 0xffff;
953 preorder_ctrl->wend_b = 0xffff;
954 preorder_ctrl->wsize_b = 64;/* max_ampdu_sz; ex. 32(kbytes) -> wsize_b = 32 */
955 }
956 }
957 /* misc. */
958 update_sta_info(padapter, psta);
959 }
960 return psta;
961 }
962
963 /* pnetwork: returns from rtw_joinbss_event_callback */
964 /* ptarget_wlan: found from scanned_queue */
rtw_joinbss_update_network(struct adapter * padapter,struct wlan_network * ptarget_wlan,struct wlan_network * pnetwork)965 static void rtw_joinbss_update_network(struct adapter *padapter, struct wlan_network *ptarget_wlan, struct wlan_network *pnetwork)
966 {
967 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
968 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
969
970 DBG_88E("%s\n", __func__);
971
972 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
973 ("\nfw_state:%x, BSSID:%pM\n",
974 get_fwstate(pmlmepriv), pnetwork->network.MacAddress));
975
976
977 /* why not use ptarget_wlan?? */
978 memcpy(&cur_network->network, &pnetwork->network, pnetwork->network.Length);
979 /* some IEs in pnetwork is wrong, so we should use ptarget_wlan IEs */
980 cur_network->network.IELength = ptarget_wlan->network.IELength;
981 memcpy(&cur_network->network.IEs[0], &ptarget_wlan->network.IEs[0], MAX_IE_SZ);
982
983 cur_network->aid = pnetwork->join_res;
984
985
986 rtw_set_signal_stat_timer(&padapter->recvpriv);
987 padapter->recvpriv.signal_strength = ptarget_wlan->network.PhyInfo.SignalStrength;
988 padapter->recvpriv.signal_qual = ptarget_wlan->network.PhyInfo.SignalQuality;
989 /* the ptarget_wlan->network.Rssi is raw data, we use ptarget_wlan->network.PhyInfo.SignalStrength instead (has scaled) */
990 padapter->recvpriv.rssi = translate_percentage_to_dbm(ptarget_wlan->network.PhyInfo.SignalStrength);
991 rtw_set_signal_stat_timer(&padapter->recvpriv);
992
993 /* update fw_state will clr _FW_UNDER_LINKING here indirectly */
994 switch (pnetwork->network.InfrastructureMode) {
995 case Ndis802_11Infrastructure:
996 if (pmlmepriv->fw_state&WIFI_UNDER_WPS)
997 pmlmepriv->fw_state = WIFI_STATION_STATE|WIFI_UNDER_WPS;
998 else
999 pmlmepriv->fw_state = WIFI_STATION_STATE;
1000 break;
1001 case Ndis802_11IBSS:
1002 pmlmepriv->fw_state = WIFI_ADHOC_STATE;
1003 break;
1004 default:
1005 pmlmepriv->fw_state = WIFI_NULL_STATE;
1006 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Invalid network_mode\n"));
1007 break;
1008 }
1009
1010 rtw_update_protection(padapter, (cur_network->network.IEs) +
1011 sizeof(struct ndis_802_11_fixed_ie),
1012 (cur_network->network.IELength));
1013 rtw_update_ht_cap(padapter, cur_network->network.IEs, cur_network->network.IELength);
1014 }
1015
1016 /* Notes: the function could be > passive_level (the same context as Rx tasklet) */
1017 /* pnetwork: returns from rtw_joinbss_event_callback */
1018 /* ptarget_wlan: found from scanned_queue */
1019 /* if join_res > 0, for (fw_state == WIFI_STATION_STATE), we check if "ptarget_sta" & "ptarget_wlan" exist. */
1020 /* if join_res > 0, for (fw_state == WIFI_ADHOC_STATE), we only check if "ptarget_wlan" exist. */
1021 /* if join_res > 0, update "cur_network->network" from "pnetwork->network" if (ptarget_wlan != NULL). */
1022
rtw_joinbss_event_prehandle(struct adapter * adapter,u8 * pbuf)1023 void rtw_joinbss_event_prehandle(struct adapter *adapter, u8 *pbuf)
1024 {
1025 struct sta_info *ptarget_sta = NULL, *pcur_sta = NULL;
1026 struct sta_priv *pstapriv = &adapter->stapriv;
1027 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1028 struct wlan_network *pnetwork = (struct wlan_network *)pbuf;
1029 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
1030 struct wlan_network *pcur_wlan = NULL, *ptarget_wlan = NULL;
1031 unsigned int the_same_macaddr = false;
1032
1033 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("joinbss event call back received with res=%d\n", pnetwork->join_res));
1034
1035 rtw_get_encrypt_decrypt_from_registrypriv(adapter);
1036
1037
1038 if (pmlmepriv->assoc_ssid.SsidLength == 0)
1039 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("@@@@@ joinbss event call back for Any SSid\n"));
1040 else
1041 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("@@@@@ rtw_joinbss_event_callback for SSid:%s\n", pmlmepriv->assoc_ssid.Ssid));
1042
1043 the_same_macaddr = !memcmp(pnetwork->network.MacAddress, cur_network->network.MacAddress, ETH_ALEN);
1044
1045 pnetwork->network.Length = get_wlan_bssid_ex_sz(&pnetwork->network);
1046 if (pnetwork->network.Length > sizeof(struct wlan_bssid_ex)) {
1047 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n\n ***joinbss_evt_callback return a wrong bss ***\n\n"));
1048 return;
1049 }
1050
1051 spin_lock_bh(&pmlmepriv->lock);
1052
1053 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\nrtw_joinbss_event_callback!! _enter_critical\n"));
1054
1055 if (pnetwork->join_res > 0) {
1056 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1057 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
1058 /* s1. find ptarget_wlan */
1059 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1060 if (the_same_macaddr) {
1061 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1062 } else {
1063 pcur_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1064 if (pcur_wlan)
1065 pcur_wlan->fixed = false;
1066
1067 pcur_sta = rtw_get_stainfo(pstapriv, cur_network->network.MacAddress);
1068 if (pcur_sta) {
1069 spin_lock_bh(&(pstapriv->sta_hash_lock));
1070 rtw_free_stainfo(adapter, pcur_sta);
1071 spin_unlock_bh(&pstapriv->sta_hash_lock);
1072 }
1073
1074 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->network.MacAddress);
1075 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1076 if (ptarget_wlan)
1077 ptarget_wlan->fixed = true;
1078 }
1079 }
1080 } else {
1081 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->network.MacAddress);
1082 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1083 if (ptarget_wlan)
1084 ptarget_wlan->fixed = true;
1085 }
1086 }
1087
1088 /* s2. update cur_network */
1089 if (ptarget_wlan) {
1090 rtw_joinbss_update_network(adapter, ptarget_wlan, pnetwork);
1091 } else {
1092 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't find ptarget_wlan when joinbss_event callback\n"));
1093 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1094 goto ignore_joinbss_callback;
1095 }
1096
1097
1098 /* s3. find ptarget_sta & update ptarget_sta after update cur_network only for station mode */
1099 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1100 ptarget_sta = rtw_joinbss_update_stainfo(adapter, pnetwork);
1101 if (ptarget_sta == NULL) {
1102 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't update stainfo when joinbss_event callback\n"));
1103 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1104 goto ignore_joinbss_callback;
1105 }
1106 }
1107
1108 /* s4. indicate connect */
1109 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1110 rtw_indicate_connect(adapter);
1111 } else {
1112 /* adhoc mode will rtw_indicate_connect when rtw_stassoc_event_callback */
1113 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("adhoc mode, fw_state:%x", get_fwstate(pmlmepriv)));
1114 }
1115
1116 /* s5. Cancle assoc_timer */
1117 del_timer_sync(&pmlmepriv->assoc_timer);
1118
1119 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("Cancle assoc_timer\n"));
1120
1121 } else {
1122 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_joinbss_event_callback err: fw_state:%x", get_fwstate(pmlmepriv)));
1123 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1124 goto ignore_joinbss_callback;
1125 }
1126
1127 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1128
1129 } else if (pnetwork->join_res == -4) {
1130 rtw_reset_securitypriv(adapter);
1131 _set_timer(&pmlmepriv->assoc_timer, 1);
1132
1133 if ((check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) == true) {
1134 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("fail! clear _FW_UNDER_LINKING ^^^fw_state=%x\n", get_fwstate(pmlmepriv)));
1135 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1136 }
1137 } else { /* if join_res < 0 (join fails), then try again */
1138 _set_timer(&pmlmepriv->assoc_timer, 1);
1139 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1140 }
1141
1142 ignore_joinbss_callback:
1143 spin_unlock_bh(&pmlmepriv->lock);
1144 }
1145
rtw_joinbss_event_callback(struct adapter * adapter,u8 * pbuf)1146 void rtw_joinbss_event_callback(struct adapter *adapter, u8 *pbuf)
1147 {
1148 struct wlan_network *pnetwork = (struct wlan_network *)pbuf;
1149
1150 mlmeext_joinbss_event_callback(adapter, pnetwork->join_res);
1151
1152 rtw_os_xmit_schedule(adapter);
1153 }
1154
search_max_mac_id(struct adapter * padapter)1155 static u8 search_max_mac_id(struct adapter *padapter)
1156 {
1157 u8 mac_id;
1158 #if defined(CONFIG_88EU_AP_MODE)
1159 u8 aid;
1160 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
1161 struct sta_priv *pstapriv = &padapter->stapriv;
1162 #endif
1163 struct mlme_ext_priv *pmlmeext = &(padapter->mlmeextpriv);
1164 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1165
1166 #if defined(CONFIG_88EU_AP_MODE)
1167 if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
1168 for (aid = (pstapriv->max_num_sta); aid > 0; aid--) {
1169 if (pstapriv->sta_aid[aid-1] != NULL)
1170 break;
1171 }
1172 mac_id = aid + 1;
1173 } else
1174 #endif
1175 {/* adhoc id = 31~2 */
1176 for (mac_id = (NUM_STA-1); mac_id >= IBSS_START_MAC_ID; mac_id--) {
1177 if (pmlmeinfo->FW_sta_info[mac_id].status == 1)
1178 break;
1179 }
1180 }
1181 return mac_id;
1182 }
1183
1184 /* FOR AP , AD-HOC mode */
rtw_stassoc_hw_rpt(struct adapter * adapter,struct sta_info * psta)1185 void rtw_stassoc_hw_rpt(struct adapter *adapter, struct sta_info *psta)
1186 {
1187 u16 media_status;
1188 u8 macid;
1189
1190 if (psta == NULL)
1191 return;
1192
1193 macid = search_max_mac_id(adapter);
1194 rtw_hal_set_hwreg(adapter, HW_VAR_TX_RPT_MAX_MACID, (u8 *)&macid);
1195 media_status = (psta->mac_id<<8)|1; /* MACID|OPMODE:1 connect */
1196 rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status);
1197 }
1198
rtw_stassoc_event_callback(struct adapter * adapter,u8 * pbuf)1199 void rtw_stassoc_event_callback(struct adapter *adapter, u8 *pbuf)
1200 {
1201 struct sta_info *psta;
1202 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1203 struct stassoc_event *pstassoc = (struct stassoc_event *)pbuf;
1204 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
1205 struct wlan_network *ptarget_wlan = NULL;
1206
1207 if (rtw_access_ctrl(adapter, pstassoc->macaddr) == false)
1208 return;
1209
1210 #if defined(CONFIG_88EU_AP_MODE)
1211 if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
1212 psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1213 if (psta) {
1214 ap_sta_info_defer_update(adapter, psta);
1215 rtw_stassoc_hw_rpt(adapter, psta);
1216 }
1217 return;
1218 }
1219 #endif
1220 /* for AD-HOC mode */
1221 psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1222 if (psta != NULL) {
1223 /* the sta have been in sta_info_queue => do nothing */
1224 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Error: rtw_stassoc_event_callback: sta has been in sta_hash_queue\n"));
1225 return; /* between drv has received this event before and fw have not yet to set key to CAM_ENTRY) */
1226 }
1227 psta = rtw_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
1228 if (psta == NULL) {
1229 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't alloc sta_info when rtw_stassoc_event_callback\n"));
1230 return;
1231 }
1232 /* to do: init sta_info variable */
1233 psta->qos_option = 0;
1234 psta->mac_id = (uint)pstassoc->cam_id;
1235 DBG_88E("%s\n", __func__);
1236 /* for ad-hoc mode */
1237 rtw_hal_set_odm_var(adapter, HAL_ODM_STA_INFO, psta, true);
1238 rtw_stassoc_hw_rpt(adapter, psta);
1239 if (adapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X)
1240 psta->dot118021XPrivacy = adapter->securitypriv.dot11PrivacyAlgrthm;
1241 psta->ieee8021x_blocked = false;
1242 spin_lock_bh(&pmlmepriv->lock);
1243 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) ||
1244 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE))) {
1245 if (adapter->stapriv.asoc_sta_count == 2) {
1246 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1247 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1248 if (ptarget_wlan)
1249 ptarget_wlan->fixed = true;
1250 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1251 /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
1252 rtw_indicate_connect(adapter);
1253 }
1254 }
1255 spin_unlock_bh(&pmlmepriv->lock);
1256 mlmeext_sta_add_event_callback(adapter, psta);
1257 }
1258
rtw_stadel_event_callback(struct adapter * adapter,u8 * pbuf)1259 void rtw_stadel_event_callback(struct adapter *adapter, u8 *pbuf)
1260 {
1261 int mac_id = -1;
1262 struct sta_info *psta;
1263 struct wlan_network *pwlan = NULL;
1264 struct wlan_bssid_ex *pdev_network = NULL;
1265 u8 *pibss = NULL;
1266 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1267 struct stadel_event *pstadel = (struct stadel_event *)pbuf;
1268 struct sta_priv *pstapriv = &adapter->stapriv;
1269 struct wlan_network *tgt_network = &(pmlmepriv->cur_network);
1270
1271 psta = rtw_get_stainfo(&adapter->stapriv, pstadel->macaddr);
1272 if (psta)
1273 mac_id = psta->mac_id;
1274 else
1275 mac_id = pstadel->mac_id;
1276
1277 DBG_88E("%s(mac_id=%d)=%pM\n", __func__, mac_id, pstadel->macaddr);
1278
1279 if (mac_id >= 0) {
1280 u16 media_status;
1281 media_status = (mac_id<<8)|0; /* MACID|OPMODE:0 means disconnect */
1282 /* for STA, AP, ADHOC mode, report disconnect stauts to FW */
1283 rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status);
1284 }
1285
1286 if (check_fwstate(pmlmepriv, WIFI_AP_STATE))
1287 return;
1288
1289 mlmeext_sta_del_event_callback(adapter);
1290
1291 spin_lock_bh(&pmlmepriv->lock);
1292
1293 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
1294 if (pmlmepriv->to_roaming > 0)
1295 pmlmepriv->to_roaming--; /* this stadel_event is caused by roaming, decrease to_roaming */
1296 else if (pmlmepriv->to_roaming == 0)
1297 pmlmepriv->to_roaming = adapter->registrypriv.max_roaming_times;
1298
1299 if (*((unsigned short *)(pstadel->rsvd)) != WLAN_REASON_EXPIRATION_CHK)
1300 pmlmepriv->to_roaming = 0; /* don't roam */
1301
1302 rtw_free_uc_swdec_pending_queue(adapter);
1303
1304 rtw_free_assoc_resources(adapter, 1);
1305 rtw_indicate_disconnect(adapter);
1306 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1307 /* remove the network entry in scanned_queue */
1308 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
1309 if (pwlan) {
1310 pwlan->fixed = false;
1311 rtw_free_network_nolock(pmlmepriv, pwlan);
1312 }
1313 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1314 _rtw_roaming(adapter, tgt_network);
1315 }
1316 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
1317 check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1318 spin_lock_bh(&(pstapriv->sta_hash_lock));
1319 rtw_free_stainfo(adapter, psta);
1320 spin_unlock_bh(&pstapriv->sta_hash_lock);
1321
1322 if (adapter->stapriv.asoc_sta_count == 1) { /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
1323 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1324 /* free old ibss network */
1325 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
1326 if (pwlan) {
1327 pwlan->fixed = false;
1328 rtw_free_network_nolock(pmlmepriv, pwlan);
1329 }
1330 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1331 /* re-create ibss */
1332 pdev_network = &(adapter->registrypriv.dev_network);
1333 pibss = adapter->registrypriv.dev_network.MacAddress;
1334
1335 memcpy(pdev_network, &tgt_network->network, get_wlan_bssid_ex_sz(&tgt_network->network));
1336
1337 memset(&pdev_network->Ssid, 0, sizeof(struct ndis_802_11_ssid));
1338 memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
1339
1340 rtw_update_registrypriv_dev_network(adapter);
1341
1342 rtw_generate_random_ibss(pibss);
1343
1344 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1345 set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
1346 _clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
1347 }
1348
1349 if (rtw_createbss_cmd(adapter) != _SUCCESS)
1350 RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_err_, ("***Error=>stadel_event_callback: rtw_createbss_cmd status FAIL***\n "));
1351 }
1352 }
1353 spin_unlock_bh(&pmlmepriv->lock);
1354 }
1355
rtw_cpwm_event_callback(struct adapter * padapter,u8 * pbuf)1356 void rtw_cpwm_event_callback(struct adapter *padapter, u8 *pbuf)
1357 {
1358 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_cpwm_event_callback !!!\n"));
1359 }
1360
1361 /*
1362 * _rtw_join_timeout_handler - Timeout/faliure handler for CMD JoinBss
1363 * @adapter: pointer to struct adapter structure
1364 */
_rtw_join_timeout_handler(void * function_context)1365 void _rtw_join_timeout_handler (void *function_context)
1366 {
1367 struct adapter *adapter = (struct adapter *)function_context;
1368 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1369 int do_join_r;
1370
1371 DBG_88E("%s, fw_state=%x\n", __func__, get_fwstate(pmlmepriv));
1372
1373 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1374 return;
1375
1376
1377 spin_lock_bh(&pmlmepriv->lock);
1378
1379 if (pmlmepriv->to_roaming > 0) { /* join timeout caused by roaming */
1380 while (1) {
1381 pmlmepriv->to_roaming--;
1382 if (pmlmepriv->to_roaming != 0) { /* try another , */
1383 DBG_88E("%s try another roaming\n", __func__);
1384 do_join_r = rtw_do_join(adapter);
1385 if (_SUCCESS != do_join_r) {
1386 DBG_88E("%s roaming do_join return %d\n", __func__ , do_join_r);
1387 continue;
1388 }
1389 break;
1390 } else {
1391 DBG_88E("%s We've try roaming but fail\n", __func__);
1392 rtw_indicate_disconnect(adapter);
1393 break;
1394 }
1395 }
1396 } else {
1397 rtw_indicate_disconnect(adapter);
1398 free_scanqueue(pmlmepriv);/* */
1399 }
1400 spin_unlock_bh(&pmlmepriv->lock);
1401 }
1402
1403 /*
1404 * rtw_scan_timeout_handler - Timeout/Faliure handler for CMD SiteSurvey
1405 * @adapter: pointer to struct adapter structure
1406 */
rtw_scan_timeout_handler(void * function_context)1407 void rtw_scan_timeout_handler (void *function_context)
1408 {
1409 struct adapter *adapter = (struct adapter *)function_context;
1410 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1411
1412 DBG_88E(FUNC_ADPT_FMT" fw_state=%x\n", FUNC_ADPT_ARG(adapter), get_fwstate(pmlmepriv));
1413 spin_lock_bh(&pmlmepriv->lock);
1414 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
1415 spin_unlock_bh(&pmlmepriv->lock);
1416 rtw_indicate_scan_done(adapter, true);
1417 }
1418
rtw_auto_scan_handler(struct adapter * padapter)1419 static void rtw_auto_scan_handler(struct adapter *padapter)
1420 {
1421 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1422
1423 /* auto site survey per 60sec */
1424 if (pmlmepriv->scan_interval > 0) {
1425 pmlmepriv->scan_interval--;
1426 if (pmlmepriv->scan_interval == 0) {
1427 DBG_88E("%s\n", __func__);
1428 rtw_set_802_11_bssid_list_scan(padapter, NULL, 0);
1429 pmlmepriv->scan_interval = SCAN_INTERVAL;/* 30*2 sec = 60sec */
1430 }
1431 }
1432 }
1433
rtw_dynamic_check_timer_handlder(void * function_context)1434 void rtw_dynamic_check_timer_handlder(void *function_context)
1435 {
1436 struct adapter *adapter = (struct adapter *)function_context;
1437 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1438
1439 if (!adapter)
1440 goto exit;
1441 if (!adapter->hw_init_completed)
1442 goto exit;
1443 if ((adapter->bDriverStopped) || (adapter->bSurpriseRemoved))
1444 goto exit;
1445 if (adapter->net_closed)
1446 goto exit;
1447 rtw_dynamic_chk_wk_cmd(adapter);
1448
1449 if (pregistrypriv->wifi_spec == 1) {
1450 /* auto site survey */
1451 rtw_auto_scan_handler(adapter);
1452 }
1453 exit:
1454 _set_timer(&adapter->mlmepriv.dynamic_chk_timer, 2000);
1455 }
1456
1457 #define RTW_SCAN_RESULT_EXPIRE 2000
1458
1459 /*
1460 * Select a new join candidate from the original @param candidate and @param competitor
1461 * @return true: candidate is updated
1462 * @return false: candidate is not updated
1463 */
rtw_check_join_candidate(struct mlme_priv * pmlmepriv,struct wlan_network ** candidate,struct wlan_network * competitor)1464 static int rtw_check_join_candidate(struct mlme_priv *pmlmepriv
1465 , struct wlan_network **candidate, struct wlan_network *competitor)
1466 {
1467 int updated = false;
1468 struct adapter *adapter = container_of(pmlmepriv, struct adapter, mlmepriv);
1469
1470
1471 /* check bssid, if needed */
1472 if (pmlmepriv->assoc_by_bssid) {
1473 if (memcmp(competitor->network.MacAddress, pmlmepriv->assoc_bssid, ETH_ALEN))
1474 goto exit;
1475 }
1476
1477 /* check ssid, if needed */
1478 if (pmlmepriv->assoc_ssid.SsidLength) {
1479 if (competitor->network.Ssid.SsidLength != pmlmepriv->assoc_ssid.SsidLength ||
1480 !memcmp(competitor->network.Ssid.Ssid, pmlmepriv->assoc_ssid.Ssid, pmlmepriv->assoc_ssid.SsidLength) == false)
1481 goto exit;
1482 }
1483
1484 if (rtw_is_desired_network(adapter, competitor) == false)
1485 goto exit;
1486
1487 if (pmlmepriv->to_roaming) {
1488 if (rtw_get_passing_time_ms((u32)competitor->last_scanned) >= RTW_SCAN_RESULT_EXPIRE ||
1489 is_same_ess(&competitor->network, &pmlmepriv->cur_network.network) == false)
1490 goto exit;
1491 }
1492
1493 if (*candidate == NULL || (*candidate)->network.Rssi < competitor->network.Rssi) {
1494 *candidate = competitor;
1495 updated = true;
1496 }
1497 if (updated) {
1498 DBG_88E("[by_bssid:%u][assoc_ssid:%s]new candidate: %s(%pM rssi:%d\n",
1499 pmlmepriv->assoc_by_bssid,
1500 pmlmepriv->assoc_ssid.Ssid,
1501 (*candidate)->network.Ssid.Ssid,
1502 (*candidate)->network.MacAddress,
1503 (int)(*candidate)->network.Rssi);
1504 DBG_88E("[to_roaming:%u]\n", pmlmepriv->to_roaming);
1505 }
1506
1507 exit:
1508 return updated;
1509 }
1510
1511 /*
1512 Calling context:
1513 The caller of the sub-routine will be in critical section...
1514 The caller must hold the following spinlock
1515 pmlmepriv->lock
1516 */
1517
rtw_select_and_join_from_scanned_queue(struct mlme_priv * pmlmepriv)1518 int rtw_select_and_join_from_scanned_queue(struct mlme_priv *pmlmepriv)
1519 {
1520 int ret;
1521 struct list_head *phead;
1522 struct adapter *adapter;
1523 struct __queue *queue = &(pmlmepriv->scanned_queue);
1524 struct wlan_network *pnetwork = NULL;
1525 struct wlan_network *candidate = NULL;
1526 u8 supp_ant_div = false;
1527
1528 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1529 phead = get_list_head(queue);
1530 adapter = (struct adapter *)pmlmepriv->nic_hdl;
1531 pmlmepriv->pscanned = phead->next;
1532 while (phead != pmlmepriv->pscanned) {
1533 pnetwork = container_of(pmlmepriv->pscanned, struct wlan_network, list);
1534 if (pnetwork == NULL) {
1535 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s return _FAIL:(pnetwork==NULL)\n", __func__));
1536 ret = _FAIL;
1537 goto exit;
1538 }
1539 pmlmepriv->pscanned = pmlmepriv->pscanned->next;
1540 rtw_check_join_candidate(pmlmepriv, &candidate, pnetwork);
1541 }
1542 if (candidate == NULL) {
1543 DBG_88E("%s: return _FAIL(candidate==NULL)\n", __func__);
1544 ret = _FAIL;
1545 goto exit;
1546 } else {
1547 DBG_88E("%s: candidate: %s(%pM ch:%u)\n", __func__,
1548 candidate->network.Ssid.Ssid, candidate->network.MacAddress,
1549 candidate->network.Configuration.DSConfig);
1550 }
1551
1552
1553 /* check for situation of _FW_LINKED */
1554 if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
1555 DBG_88E("%s: _FW_LINKED while ask_for_joinbss!!!\n", __func__);
1556
1557 rtw_disassoc_cmd(adapter, 0, true);
1558 rtw_indicate_disconnect(adapter);
1559 rtw_free_assoc_resources(adapter, 0);
1560 }
1561
1562 rtw_hal_get_def_var(adapter, HAL_DEF_IS_SUPPORT_ANT_DIV, &(supp_ant_div));
1563 if (supp_ant_div) {
1564 u8 cur_ant;
1565 rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(cur_ant));
1566 DBG_88E("#### Opt_Ant_(%s), cur_Ant(%s)\n",
1567 (2 == candidate->network.PhyInfo.Optimum_antenna) ? "A" : "B",
1568 (2 == cur_ant) ? "A" : "B"
1569 );
1570 }
1571
1572 ret = rtw_joinbss_cmd(adapter, candidate);
1573
1574 exit:
1575 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1576 return ret;
1577 }
1578
rtw_set_auth(struct adapter * adapter,struct security_priv * psecuritypriv)1579 int rtw_set_auth(struct adapter *adapter, struct security_priv *psecuritypriv)
1580 {
1581 struct cmd_obj *pcmd;
1582 struct setauth_parm *psetauthparm;
1583 struct cmd_priv *pcmdpriv = &(adapter->cmdpriv);
1584 int res = _SUCCESS;
1585
1586 pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
1587 if (pcmd == NULL) {
1588 res = _FAIL; /* try again */
1589 goto exit;
1590 }
1591
1592 psetauthparm = kzalloc(sizeof(struct setauth_parm), GFP_KERNEL);
1593 if (psetauthparm == NULL) {
1594 kfree(pcmd);
1595 res = _FAIL;
1596 goto exit;
1597 }
1598 memset(psetauthparm, 0, sizeof(struct setauth_parm));
1599 psetauthparm->mode = (unsigned char)psecuritypriv->dot11AuthAlgrthm;
1600 pcmd->cmdcode = _SetAuth_CMD_;
1601 pcmd->parmbuf = (unsigned char *)psetauthparm;
1602 pcmd->cmdsz = (sizeof(struct setauth_parm));
1603 pcmd->rsp = NULL;
1604 pcmd->rspsz = 0;
1605 INIT_LIST_HEAD(&pcmd->list);
1606 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1607 ("after enqueue set_auth_cmd, auth_mode=%x\n",
1608 psecuritypriv->dot11AuthAlgrthm));
1609 res = rtw_enqueue_cmd(pcmdpriv, pcmd);
1610 exit:
1611 return res;
1612 }
1613
rtw_set_key(struct adapter * adapter,struct security_priv * psecuritypriv,int keyid,u8 set_tx)1614 int rtw_set_key(struct adapter *adapter, struct security_priv *psecuritypriv, int keyid, u8 set_tx)
1615 {
1616 u8 keylen;
1617 struct cmd_obj *pcmd;
1618 struct setkey_parm *psetkeyparm;
1619 struct cmd_priv *pcmdpriv = &(adapter->cmdpriv);
1620 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1621 int res = _SUCCESS;
1622
1623 pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
1624 if (pcmd == NULL)
1625 return _FAIL; /* try again */
1626
1627 psetkeyparm = kzalloc(sizeof(struct setkey_parm), GFP_KERNEL);
1628 if (psetkeyparm == NULL) {
1629 res = _FAIL;
1630 goto err_free_cmd;
1631 }
1632
1633 memset(psetkeyparm, 0, sizeof(struct setkey_parm));
1634
1635 if (psecuritypriv->dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
1636 psetkeyparm->algorithm = (unsigned char)psecuritypriv->dot118021XGrpPrivacy;
1637 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1638 ("\n rtw_set_key: psetkeyparm->algorithm=(unsigned char)psecuritypriv->dot118021XGrpPrivacy=%d\n",
1639 psetkeyparm->algorithm));
1640 } else {
1641 psetkeyparm->algorithm = (u8)psecuritypriv->dot11PrivacyAlgrthm;
1642 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1643 ("\n rtw_set_key: psetkeyparm->algorithm=(u8)psecuritypriv->dot11PrivacyAlgrthm=%d\n",
1644 psetkeyparm->algorithm));
1645 }
1646 psetkeyparm->keyid = (u8)keyid;/* 0~3 */
1647 psetkeyparm->set_tx = set_tx;
1648 pmlmepriv->key_mask |= BIT(psetkeyparm->keyid);
1649 DBG_88E("==> rtw_set_key algorithm(%x), keyid(%x), key_mask(%x)\n",
1650 psetkeyparm->algorithm, psetkeyparm->keyid, pmlmepriv->key_mask);
1651 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1652 ("\n rtw_set_key: psetkeyparm->algorithm=%d psetkeyparm->keyid=(u8)keyid=%d\n",
1653 psetkeyparm->algorithm, keyid));
1654
1655 switch (psetkeyparm->algorithm) {
1656 case _WEP40_:
1657 keylen = 5;
1658 memcpy(&(psetkeyparm->key[0]), &(psecuritypriv->dot11DefKey[keyid].skey[0]), keylen);
1659 break;
1660 case _WEP104_:
1661 keylen = 13;
1662 memcpy(&(psetkeyparm->key[0]), &(psecuritypriv->dot11DefKey[keyid].skey[0]), keylen);
1663 break;
1664 case _TKIP_:
1665 keylen = 16;
1666 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
1667 psetkeyparm->grpkey = 1;
1668 break;
1669 case _AES_:
1670 keylen = 16;
1671 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
1672 psetkeyparm->grpkey = 1;
1673 break;
1674 default:
1675 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1676 ("\n rtw_set_key:psecuritypriv->dot11PrivacyAlgrthm=%x (must be 1 or 2 or 4 or 5)\n",
1677 psecuritypriv->dot11PrivacyAlgrthm));
1678 res = _FAIL;
1679 goto err_free_parm;
1680 }
1681 pcmd->cmdcode = _SetKey_CMD_;
1682 pcmd->parmbuf = (u8 *)psetkeyparm;
1683 pcmd->cmdsz = (sizeof(struct setkey_parm));
1684 pcmd->rsp = NULL;
1685 pcmd->rspsz = 0;
1686 INIT_LIST_HEAD(&pcmd->list);
1687 res = rtw_enqueue_cmd(pcmdpriv, pcmd);
1688 return res;
1689
1690 err_free_parm:
1691 kfree(psetkeyparm);
1692 err_free_cmd:
1693 kfree(pcmd);
1694 return res;
1695 }
1696
1697 /* 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)1698 int rtw_restruct_wmm_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len, uint initial_out_len)
1699 {
1700 unsigned int ielength = 0;
1701 unsigned int i, j;
1702
1703 i = 12; /* after the fixed IE */
1704 while (i < in_len) {
1705 ielength = initial_out_len;
1706
1707 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) {
1708 /* WMM element ID and OUI */
1709 /* Append WMM IE to the last index of out_ie */
1710
1711 for (j = i; j < i + 9; j++) {
1712 out_ie[ielength] = in_ie[j];
1713 ielength++;
1714 }
1715 out_ie[initial_out_len + 1] = 0x07;
1716 out_ie[initial_out_len + 6] = 0x00;
1717 out_ie[initial_out_len + 8] = 0x00;
1718 break;
1719 }
1720 i += (in_ie[i+1]+2); /* to the next IE element */
1721 }
1722 return ielength;
1723 }
1724
1725 /*
1726 * Ported from 8185: IsInPreAuthKeyList().
1727 * (Renamed from SecIsInPreAuthKeyList(), 2006-10-13.)
1728 * Added by Annie, 2006-05-07.
1729 * Search by BSSID,
1730 * Return Value:
1731 * -1 :if there is no pre-auth key in the table
1732 * >= 0 :if there is pre-auth key, and return the entry id
1733 */
SecIsInPMKIDList(struct adapter * Adapter,u8 * bssid)1734 static int SecIsInPMKIDList(struct adapter *Adapter, u8 *bssid)
1735 {
1736 struct security_priv *psecuritypriv = &Adapter->securitypriv;
1737 int i = 0;
1738
1739 do {
1740 if ((psecuritypriv->PMKIDList[i].bUsed) &&
1741 (!memcmp(psecuritypriv->PMKIDList[i].Bssid, bssid, ETH_ALEN))) {
1742 break;
1743 } else {
1744 i++;
1745 /* continue; */
1746 }
1747
1748 } while (i < NUM_PMKID_CACHE);
1749
1750 if (i == NUM_PMKID_CACHE)
1751 i = -1;/* Could not find. */
1752
1753 return i;
1754 }
1755
1756 /* */
1757 /* Check the RSN IE length */
1758 /* If the RSN IE length <= 20, the RSN IE didn't include the PMKID information */
1759 /* 0-11th element in the array are the fixed IE */
1760 /* 12th element in the array is the IE */
1761 /* 13th element in the array is the IE length */
1762 /* */
1763
rtw_append_pmkid(struct adapter * Adapter,int iEntry,u8 * ie,uint ie_len)1764 static int rtw_append_pmkid(struct adapter *Adapter, int iEntry, u8 *ie, uint ie_len)
1765 {
1766 struct security_priv *psecuritypriv = &Adapter->securitypriv;
1767
1768 if (ie[13] <= 20) {
1769 /* The RSN IE didn't include the PMK ID, append the PMK information */
1770 ie[ie_len] = 1;
1771 ie_len++;
1772 ie[ie_len] = 0; /* PMKID count = 0x0100 */
1773 ie_len++;
1774 memcpy(&ie[ie_len], &psecuritypriv->PMKIDList[iEntry].PMKID, 16);
1775
1776 ie_len += 16;
1777 ie[13] += 18;/* PMKID length = 2+16 */
1778 }
1779 return ie_len;
1780 }
1781
rtw_restruct_sec_ie(struct adapter * adapter,u8 * in_ie,u8 * out_ie,uint in_len)1782 int rtw_restruct_sec_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len)
1783 {
1784 u8 authmode;
1785 uint ielength;
1786 int iEntry;
1787
1788 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1789 struct security_priv *psecuritypriv = &adapter->securitypriv;
1790 uint ndisauthmode = psecuritypriv->ndisauthtype;
1791 uint ndissecuritytype = psecuritypriv->ndisencryptstatus;
1792
1793 RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_,
1794 ("+rtw_restruct_sec_ie: ndisauthmode=%d ndissecuritytype=%d\n",
1795 ndisauthmode, ndissecuritytype));
1796
1797 /* copy fixed ie only */
1798 memcpy(out_ie, in_ie, 12);
1799 ielength = 12;
1800 if ((ndisauthmode == Ndis802_11AuthModeWPA) ||
1801 (ndisauthmode == Ndis802_11AuthModeWPAPSK))
1802 authmode = _WPA_IE_ID_;
1803 if ((ndisauthmode == Ndis802_11AuthModeWPA2) ||
1804 (ndisauthmode == Ndis802_11AuthModeWPA2PSK))
1805 authmode = _WPA2_IE_ID_;
1806
1807 if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
1808 memcpy(out_ie+ielength, psecuritypriv->wps_ie, psecuritypriv->wps_ie_len);
1809
1810 ielength += psecuritypriv->wps_ie_len;
1811 } else if ((authmode == _WPA_IE_ID_) || (authmode == _WPA2_IE_ID_)) {
1812 /* copy RSN or SSN */
1813 memcpy(&out_ie[ielength], &psecuritypriv->supplicant_ie[0], psecuritypriv->supplicant_ie[1]+2);
1814 ielength += psecuritypriv->supplicant_ie[1]+2;
1815 rtw_report_sec_ie(adapter, authmode, psecuritypriv->supplicant_ie);
1816 }
1817
1818 iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
1819 if (iEntry < 0) {
1820 return ielength;
1821 } else {
1822 if (authmode == _WPA2_IE_ID_)
1823 ielength = rtw_append_pmkid(adapter, iEntry, out_ie, ielength);
1824 }
1825 return ielength;
1826 }
1827
rtw_init_registrypriv_dev_network(struct adapter * adapter)1828 void rtw_init_registrypriv_dev_network(struct adapter *adapter)
1829 {
1830 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1831 struct eeprom_priv *peepriv = &adapter->eeprompriv;
1832 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1833 u8 *myhwaddr = myid(peepriv);
1834
1835 memcpy(pdev_network->MacAddress, myhwaddr, ETH_ALEN);
1836
1837 memcpy(&pdev_network->Ssid, &pregistrypriv->ssid, sizeof(struct ndis_802_11_ssid));
1838
1839 pdev_network->Configuration.Length = sizeof(struct ndis_802_11_config);
1840 pdev_network->Configuration.BeaconPeriod = 100;
1841 pdev_network->Configuration.FHConfig.Length = 0;
1842 pdev_network->Configuration.FHConfig.HopPattern = 0;
1843 pdev_network->Configuration.FHConfig.HopSet = 0;
1844 pdev_network->Configuration.FHConfig.DwellTime = 0;
1845 }
1846
rtw_update_registrypriv_dev_network(struct adapter * adapter)1847 void rtw_update_registrypriv_dev_network(struct adapter *adapter)
1848 {
1849 int sz = 0;
1850 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1851 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1852 struct security_priv *psecuritypriv = &adapter->securitypriv;
1853 struct wlan_network *cur_network = &adapter->mlmepriv.cur_network;
1854
1855 pdev_network->Privacy = (psecuritypriv->dot11PrivacyAlgrthm > 0 ? 1 : 0); /* adhoc no 802.1x */
1856
1857 pdev_network->Rssi = 0;
1858
1859 switch (pregistrypriv->wireless_mode) {
1860 case WIRELESS_11B:
1861 pdev_network->NetworkTypeInUse = (Ndis802_11DS);
1862 break;
1863 case WIRELESS_11G:
1864 case WIRELESS_11BG:
1865 case WIRELESS_11_24N:
1866 case WIRELESS_11G_24N:
1867 case WIRELESS_11BG_24N:
1868 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM24);
1869 break;
1870 case WIRELESS_11A:
1871 case WIRELESS_11A_5N:
1872 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM5);
1873 break;
1874 case WIRELESS_11ABGN:
1875 if (pregistrypriv->channel > 14)
1876 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM5);
1877 else
1878 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM24);
1879 break;
1880 default:
1881 /* TODO */
1882 break;
1883 }
1884
1885 pdev_network->Configuration.DSConfig = (pregistrypriv->channel);
1886 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
1887 ("pregistrypriv->channel=%d, pdev_network->Configuration.DSConfig=0x%x\n",
1888 pregistrypriv->channel, pdev_network->Configuration.DSConfig));
1889
1890 if (cur_network->network.InfrastructureMode == Ndis802_11IBSS)
1891 pdev_network->Configuration.ATIMWindow = (0);
1892
1893 pdev_network->InfrastructureMode = (cur_network->network.InfrastructureMode);
1894
1895 /* 1. Supported rates */
1896 /* 2. IE */
1897
1898 sz = rtw_generate_ie(pregistrypriv);
1899 pdev_network->IELength = sz;
1900 pdev_network->Length = get_wlan_bssid_ex_sz((struct wlan_bssid_ex *)pdev_network);
1901
1902 /* notes: translate IELength & Length after assign the Length to cmdsz in createbss_cmd(); */
1903 /* pdev_network->IELength = cpu_to_le32(sz); */
1904 }
1905
rtw_get_encrypt_decrypt_from_registrypriv(struct adapter * adapter)1906 void rtw_get_encrypt_decrypt_from_registrypriv(struct adapter *adapter)
1907 {
1908 }
1909
1910 /* the function is at passive_level */
rtw_joinbss_reset(struct adapter * padapter)1911 void rtw_joinbss_reset(struct adapter *padapter)
1912 {
1913 u8 threshold;
1914 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1915 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1916
1917 /* todo: if you want to do something io/reg/hw setting before join_bss, please add code here */
1918 pmlmepriv->num_FortyMHzIntolerant = 0;
1919
1920 pmlmepriv->num_sta_no_ht = 0;
1921
1922 phtpriv->ampdu_enable = false;/* reset to disabled */
1923
1924 /* TH = 1 => means that invalidate usb rx aggregation */
1925 /* TH = 0 => means that validate usb rx aggregation, use init value. */
1926 if (phtpriv->ht_option) {
1927 if (padapter->registrypriv.wifi_spec == 1)
1928 threshold = 1;
1929 else
1930 threshold = 0;
1931 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
1932 } else {
1933 threshold = 1;
1934 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
1935 }
1936 }
1937
1938 /* the function is >= passive_level */
rtw_restructure_ht_ie(struct adapter * padapter,u8 * in_ie,u8 * out_ie,uint in_len,uint * pout_len)1939 unsigned int rtw_restructure_ht_ie(struct adapter *padapter, u8 *in_ie, u8 *out_ie, uint in_len, uint *pout_len)
1940 {
1941 u32 ielen, out_len;
1942 enum ht_cap_ampdu_factor max_rx_ampdu_factor;
1943 unsigned char *p;
1944 struct rtw_ieee80211_ht_cap ht_capie;
1945 unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
1946 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1947 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
1948 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1949 u32 rx_packet_offset, max_recvbuf_sz;
1950
1951
1952 phtpriv->ht_option = false;
1953
1954 p = rtw_get_ie(in_ie+12, _HT_CAPABILITY_IE_, &ielen, in_len-12);
1955
1956 if (p && ielen > 0) {
1957 if (pqospriv->qos_option == 0) {
1958 out_len = *pout_len;
1959 rtw_set_ie(out_ie+out_len, _VENDOR_SPECIFIC_IE_,
1960 _WMM_IE_Length_, WMM_IE, pout_len);
1961
1962 pqospriv->qos_option = 1;
1963 }
1964
1965 out_len = *pout_len;
1966
1967 memset(&ht_capie, 0, sizeof(struct rtw_ieee80211_ht_cap));
1968
1969 ht_capie.cap_info = IEEE80211_HT_CAP_SUP_WIDTH |
1970 IEEE80211_HT_CAP_SGI_20 |
1971 IEEE80211_HT_CAP_SGI_40 |
1972 IEEE80211_HT_CAP_TX_STBC |
1973 IEEE80211_HT_CAP_DSSSCCK40;
1974
1975 rtw_hal_get_def_var(padapter, HAL_DEF_RX_PACKET_OFFSET, &rx_packet_offset);
1976 rtw_hal_get_def_var(padapter, HAL_DEF_MAX_RECVBUF_SZ, &max_recvbuf_sz);
1977
1978 /*
1979 AMPDU_para [1:0]:Max AMPDU Len => 0:8k , 1:16k, 2:32k, 3:64k
1980 AMPDU_para [4:2]:Min MPDU Start Spacing
1981 */
1982
1983 rtw_hal_get_def_var(padapter, HW_VAR_MAX_RX_AMPDU_FACTOR, &max_rx_ampdu_factor);
1984 ht_capie.ampdu_params_info = (max_rx_ampdu_factor&0x03);
1985
1986 if (padapter->securitypriv.dot11PrivacyAlgrthm == _AES_)
1987 ht_capie.ampdu_params_info |= (IEEE80211_HT_CAP_AMPDU_DENSITY&(0x07<<2));
1988 else
1989 ht_capie.ampdu_params_info |= (IEEE80211_HT_CAP_AMPDU_DENSITY&0x00);
1990
1991
1992 rtw_set_ie(out_ie+out_len, _HT_CAPABILITY_IE_,
1993 sizeof(struct rtw_ieee80211_ht_cap), (unsigned char *)&ht_capie, pout_len);
1994
1995 phtpriv->ht_option = true;
1996
1997 p = rtw_get_ie(in_ie+12, _HT_ADD_INFO_IE_, &ielen, in_len-12);
1998 if (p && (ielen == sizeof(struct ieee80211_ht_addt_info))) {
1999 out_len = *pout_len;
2000 rtw_set_ie(out_ie+out_len, _HT_ADD_INFO_IE_, ielen, p+2 , pout_len);
2001 }
2002 }
2003 return phtpriv->ht_option;
2004 }
2005
2006 /* the function is > passive_level (in critical_section) */
rtw_update_ht_cap(struct adapter * padapter,u8 * pie,uint ie_len)2007 void rtw_update_ht_cap(struct adapter *padapter, u8 *pie, uint ie_len)
2008 {
2009 u8 *p, max_ampdu_sz;
2010 int len;
2011 struct rtw_ieee80211_ht_cap *pht_capie;
2012 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2013 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
2014 struct registry_priv *pregistrypriv = &padapter->registrypriv;
2015 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
2016 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
2017
2018 if (!phtpriv->ht_option)
2019 return;
2020
2021 if ((!pmlmeinfo->HT_info_enable) || (!pmlmeinfo->HT_caps_enable))
2022 return;
2023
2024 DBG_88E("+rtw_update_ht_cap()\n");
2025
2026 /* maybe needs check if ap supports rx ampdu. */
2027 if ((!phtpriv->ampdu_enable) && (pregistrypriv->ampdu_enable == 1)) {
2028 if (pregistrypriv->wifi_spec == 1)
2029 phtpriv->ampdu_enable = false;
2030 else
2031 phtpriv->ampdu_enable = true;
2032 } else if (pregistrypriv->ampdu_enable == 2) {
2033 phtpriv->ampdu_enable = true;
2034 }
2035
2036
2037 /* check Max Rx A-MPDU Size */
2038 len = 0;
2039 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));
2040 if (p && len > 0) {
2041 pht_capie = (struct rtw_ieee80211_ht_cap *)(p+2);
2042 max_ampdu_sz = (pht_capie->ampdu_params_info & IEEE80211_HT_CAP_AMPDU_FACTOR);
2043 max_ampdu_sz = 1 << (max_ampdu_sz+3); /* max_ampdu_sz (kbytes); */
2044 phtpriv->rx_ampdu_maxlen = max_ampdu_sz;
2045 }
2046 len = 0;
2047 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));
2048
2049 /* update cur_bwmode & cur_ch_offset */
2050 if ((pregistrypriv->cbw40_enable) &&
2051 (le16_to_cpu(pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info) & BIT(1)) &&
2052 (pmlmeinfo->HT_info.infos[0] & BIT(2))) {
2053 int i;
2054 u8 rf_type;
2055
2056 padapter->HalFunc.GetHwRegHandler(padapter, HW_VAR_RF_TYPE, (u8 *)(&rf_type));
2057
2058 /* update the MCS rates */
2059 for (i = 0; i < 16; i++) {
2060 if ((rf_type == RF_1T1R) || (rf_type == RF_1T2R))
2061 pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= MCS_rate_1R[i];
2062 else
2063 pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= MCS_rate_2R[i];
2064 }
2065 /* switch to the 40M Hz mode according to the AP */
2066 pmlmeext->cur_bwmode = HT_CHANNEL_WIDTH_40;
2067 switch ((pmlmeinfo->HT_info.infos[0] & 0x3)) {
2068 case HT_EXTCHNL_OFFSET_UPPER:
2069 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_LOWER;
2070 break;
2071 case HT_EXTCHNL_OFFSET_LOWER:
2072 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_UPPER;
2073 break;
2074 default:
2075 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
2076 break;
2077 }
2078 }
2079
2080 /* Config SM Power Save setting */
2081 pmlmeinfo->SM_PS = (le16_to_cpu(pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info) & 0x0C) >> 2;
2082 if (pmlmeinfo->SM_PS == WLAN_HT_CAP_SM_PS_STATIC)
2083 DBG_88E("%s(): WLAN_HT_CAP_SM_PS_STATIC\n", __func__);
2084
2085 /* Config current HT Protection mode. */
2086 pmlmeinfo->HT_protection = pmlmeinfo->HT_info.infos[1] & 0x3;
2087 }
2088
rtw_issue_addbareq_cmd(struct adapter * padapter,struct xmit_frame * pxmitframe)2089 void rtw_issue_addbareq_cmd(struct adapter *padapter, struct xmit_frame *pxmitframe)
2090 {
2091 u8 issued;
2092 int priority;
2093 struct sta_info *psta = NULL;
2094 struct ht_priv *phtpriv;
2095 struct pkt_attrib *pattrib = &pxmitframe->attrib;
2096 s32 bmcst = IS_MCAST(pattrib->ra);
2097
2098 if (bmcst || (padapter->mlmepriv.LinkDetectInfo.NumTxOkInPeriod < 100))
2099 return;
2100
2101 priority = pattrib->priority;
2102
2103 if (pattrib->psta)
2104 psta = pattrib->psta;
2105 else
2106 psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
2107
2108 if (psta == NULL)
2109 return;
2110
2111 phtpriv = &psta->htpriv;
2112
2113 if ((phtpriv->ht_option) && (phtpriv->ampdu_enable)) {
2114 issued = (phtpriv->agg_enable_bitmap>>priority)&0x1;
2115 issued |= (phtpriv->candidate_tid_bitmap>>priority)&0x1;
2116
2117 if (0 == issued) {
2118 DBG_88E("rtw_issue_addbareq_cmd, p=%d\n", priority);
2119 psta->htpriv.candidate_tid_bitmap |= BIT((u8)priority);
2120 rtw_addbareq_cmd(padapter, (u8) priority, pattrib->ra);
2121 }
2122 }
2123 }
2124
rtw_roaming(struct adapter * padapter,struct wlan_network * tgt_network)2125 void rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
2126 {
2127 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2128
2129 spin_lock_bh(&pmlmepriv->lock);
2130 _rtw_roaming(padapter, tgt_network);
2131 spin_unlock_bh(&pmlmepriv->lock);
2132 }
_rtw_roaming(struct adapter * padapter,struct wlan_network * tgt_network)2133 void _rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
2134 {
2135 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2136 int do_join_r;
2137
2138 struct wlan_network *pnetwork;
2139
2140 if (tgt_network != NULL)
2141 pnetwork = tgt_network;
2142 else
2143 pnetwork = &pmlmepriv->cur_network;
2144
2145 if (0 < pmlmepriv->to_roaming) {
2146 DBG_88E("roaming from %s(%pM length:%d\n",
2147 pnetwork->network.Ssid.Ssid, pnetwork->network.MacAddress,
2148 pnetwork->network.Ssid.SsidLength);
2149 memcpy(&pmlmepriv->assoc_ssid, &pnetwork->network.Ssid, sizeof(struct ndis_802_11_ssid));
2150
2151 pmlmepriv->assoc_by_bssid = false;
2152
2153 while (1) {
2154 do_join_r = rtw_do_join(padapter);
2155 if (_SUCCESS == do_join_r) {
2156 break;
2157 } else {
2158 DBG_88E("roaming do_join return %d\n", do_join_r);
2159 pmlmepriv->to_roaming--;
2160
2161 if (0 < pmlmepriv->to_roaming) {
2162 continue;
2163 } else {
2164 DBG_88E("%s(%d) -to roaming fail, indicate_disconnect\n", __func__, __LINE__);
2165 rtw_indicate_disconnect(padapter);
2166 break;
2167 }
2168 }
2169 }
2170 }
2171 }
2172