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 #include <linux/ieee80211.h>
23
24 #include <osdep_service.h>
25 #include <drv_types.h>
26 #include <recv_osdep.h>
27 #include <xmit_osdep.h>
28 #include <hal_intf.h>
29 #include <mlme_osdep.h>
30 #include <sta_info.h>
31 #include <wifi.h>
32 #include <wlan_bssdef.h>
33 #include <rtw_ioctl_set.h>
34 #include <linux/vmalloc.h>
35
36 extern unsigned char MCS_rate_2R[16];
37 extern unsigned char MCS_rate_1R[16];
38
rtw_init_mlme_priv(struct adapter * padapter)39 int rtw_init_mlme_priv(struct adapter *padapter)
40 {
41 int i;
42 u8 *pbuf;
43 struct wlan_network *pnetwork;
44 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
45 int res = _SUCCESS;
46
47 /* We don't need to memset padapter->XXX to zero, because adapter is allocated by vzalloc(). */
48
49 pmlmepriv->nic_hdl = (u8 *)padapter;
50
51 pmlmepriv->pscanned = NULL;
52 pmlmepriv->fw_state = 0;
53 pmlmepriv->cur_network.network.InfrastructureMode = Ndis802_11AutoUnknown;
54 pmlmepriv->scan_mode = SCAN_ACTIVE;/* 1: active, 0: pasive. Maybe someday we should rename this varable to "active_mode" (Jeff) */
55
56 spin_lock_init(&(pmlmepriv->lock));
57 _rtw_init_queue(&(pmlmepriv->free_bss_pool));
58 _rtw_init_queue(&(pmlmepriv->scanned_queue));
59
60 set_scanned_network_val(pmlmepriv, 0);
61
62 memset(&pmlmepriv->assoc_ssid, 0, sizeof(struct ndis_802_11_ssid));
63
64 pbuf = vzalloc(MAX_BSS_CNT * (sizeof(struct wlan_network)));
65
66 if (pbuf == NULL) {
67 res = _FAIL;
68 goto exit;
69 }
70 pmlmepriv->free_bss_buf = pbuf;
71
72 pnetwork = (struct wlan_network *)pbuf;
73
74 for (i = 0; i < MAX_BSS_CNT; i++) {
75 INIT_LIST_HEAD(&(pnetwork->list));
76
77 list_add_tail(&(pnetwork->list), &(pmlmepriv->free_bss_pool.queue));
78
79 pnetwork++;
80 }
81
82 /* allocate DMA-able/Non-Page memory for cmd_buf and rsp_buf */
83
84 rtw_clear_scan_deny(padapter);
85
86 rtw_init_mlme_timer(padapter);
87
88 exit:
89 return res;
90 }
91
92 #if defined(CONFIG_88EU_AP_MODE)
rtw_free_mlme_ie_data(u8 ** ppie,u32 * plen)93 static void rtw_free_mlme_ie_data(u8 **ppie, u32 *plen)
94 {
95 kfree(*ppie);
96 *plen = 0;
97 *ppie = NULL;
98 }
99
rtw_free_mlme_priv_ie_data(struct mlme_priv * pmlmepriv)100 void rtw_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv)
101 {
102 rtw_buf_free(&pmlmepriv->assoc_req, &pmlmepriv->assoc_req_len);
103 rtw_buf_free(&pmlmepriv->assoc_rsp, &pmlmepriv->assoc_rsp_len);
104 rtw_free_mlme_ie_data(&pmlmepriv->wps_beacon_ie, &pmlmepriv->wps_beacon_ie_len);
105 rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_req_ie, &pmlmepriv->wps_probe_req_ie_len);
106 rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_resp_ie, &pmlmepriv->wps_probe_resp_ie_len);
107 rtw_free_mlme_ie_data(&pmlmepriv->wps_assoc_resp_ie, &pmlmepriv->wps_assoc_resp_ie_len);
108
109 rtw_free_mlme_ie_data(&pmlmepriv->p2p_beacon_ie, &pmlmepriv->p2p_beacon_ie_len);
110 rtw_free_mlme_ie_data(&pmlmepriv->p2p_probe_req_ie, &pmlmepriv->p2p_probe_req_ie_len);
111 rtw_free_mlme_ie_data(&pmlmepriv->p2p_probe_resp_ie, &pmlmepriv->p2p_probe_resp_ie_len);
112 rtw_free_mlme_ie_data(&pmlmepriv->p2p_go_probe_resp_ie, &pmlmepriv->p2p_go_probe_resp_ie_len);
113 rtw_free_mlme_ie_data(&pmlmepriv->p2p_assoc_req_ie, &pmlmepriv->p2p_assoc_req_ie_len);
114 }
115 #else
rtw_free_mlme_priv_ie_data(struct mlme_priv * pmlmepriv)116 void rtw_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv)
117 {
118 }
119 #endif
120
rtw_free_mlme_priv(struct mlme_priv * pmlmepriv)121 void rtw_free_mlme_priv(struct mlme_priv *pmlmepriv)
122 {
123 rtw_free_mlme_priv_ie_data(pmlmepriv);
124
125 if (pmlmepriv) {
126 if (pmlmepriv->free_bss_buf)
127 vfree(pmlmepriv->free_bss_buf);
128 }
129 }
130
_rtw_alloc_network(struct mlme_priv * pmlmepriv)131 struct wlan_network *_rtw_alloc_network(struct mlme_priv *pmlmepriv)/* _queue *free_queue) */
132 {
133 struct wlan_network *pnetwork;
134 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
135 struct list_head *plist = NULL;
136
137 spin_lock_bh(&free_queue->lock);
138
139 if (list_empty(&free_queue->queue)) {
140 pnetwork = NULL;
141 goto exit;
142 }
143 plist = free_queue->queue.next;
144
145 pnetwork = container_of(plist, struct wlan_network, list);
146
147 list_del_init(&pnetwork->list);
148
149 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("_rtw_alloc_network: ptr=%p\n", plist));
150 pnetwork->network_type = 0;
151 pnetwork->fixed = false;
152 pnetwork->last_scanned = jiffies;
153 pnetwork->aid = 0;
154 pnetwork->join_res = 0;
155
156 pmlmepriv->num_of_scanned++;
157
158 exit:
159 spin_unlock_bh(&free_queue->lock);
160
161 return pnetwork;
162 }
163
_rtw_free_network(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork,u8 isfreeall)164 static void _rtw_free_network(struct mlme_priv *pmlmepriv, struct wlan_network *pnetwork, u8 isfreeall)
165 {
166 u32 curr_time, delta_time;
167 u32 lifetime = SCANQUEUE_LIFETIME;
168 struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
169
170 if (pnetwork == NULL)
171 return;
172
173 if (pnetwork->fixed)
174 return;
175 curr_time = jiffies;
176 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) ||
177 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)))
178 lifetime = 1;
179 if (!isfreeall) {
180 delta_time = (curr_time - pnetwork->last_scanned)/HZ;
181 if (delta_time < lifetime)/* unit:sec */
182 return;
183 }
184 spin_lock_bh(&free_queue->lock);
185 list_del_init(&(pnetwork->list));
186 list_add_tail(&(pnetwork->list), &(free_queue->queue));
187 pmlmepriv->num_of_scanned--;
188 spin_unlock_bh(&free_queue->lock);
189 }
190
_rtw_free_network_nolock(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork)191 void _rtw_free_network_nolock(struct mlme_priv *pmlmepriv, struct wlan_network *pnetwork)
192 {
193 struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
194
195 if (pnetwork == NULL)
196 return;
197 if (pnetwork->fixed)
198 return;
199 list_del_init(&(pnetwork->list));
200 list_add_tail(&(pnetwork->list), get_list_head(free_queue));
201 pmlmepriv->num_of_scanned--;
202 }
203
204 /*
205 return the wlan_network with the matching addr
206
207 Shall be calle under atomic context... to avoid possible racing condition...
208 */
rtw_find_network(struct __queue * scanned_queue,u8 * addr)209 struct wlan_network *rtw_find_network(struct __queue *scanned_queue, u8 *addr)
210 {
211 struct list_head *phead, *plist;
212 struct wlan_network *pnetwork = NULL;
213 u8 zero_addr[ETH_ALEN] = {0, 0, 0, 0, 0, 0};
214
215 if (!memcmp(zero_addr, addr, ETH_ALEN)) {
216 pnetwork = NULL;
217 goto exit;
218 }
219 phead = get_list_head(scanned_queue);
220 plist = phead->next;
221
222 while (plist != phead) {
223 pnetwork = container_of(plist, struct wlan_network, list);
224 if (!memcmp(addr, pnetwork->network.MacAddress, ETH_ALEN))
225 break;
226 plist = plist->next;
227 }
228 if (plist == phead)
229 pnetwork = NULL;
230 exit:
231 return pnetwork;
232 }
233
234
rtw_free_network_queue(struct adapter * padapter,u8 isfreeall)235 void rtw_free_network_queue(struct adapter *padapter, u8 isfreeall)
236 {
237 struct list_head *phead, *plist;
238 struct wlan_network *pnetwork;
239 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
240 struct __queue *scanned_queue = &pmlmepriv->scanned_queue;
241
242 spin_lock_bh(&scanned_queue->lock);
243
244 phead = get_list_head(scanned_queue);
245 plist = phead->next;
246
247 while (phead != plist) {
248 pnetwork = container_of(plist, struct wlan_network, list);
249
250 plist = plist->next;
251
252 _rtw_free_network(pmlmepriv, pnetwork, isfreeall);
253 }
254 spin_unlock_bh(&scanned_queue->lock);
255 }
256
rtw_if_up(struct adapter * padapter)257 int rtw_if_up(struct adapter *padapter)
258 {
259 int res;
260
261 if (padapter->bDriverStopped || padapter->bSurpriseRemoved ||
262 (check_fwstate(&padapter->mlmepriv, _FW_LINKED) == false)) {
263 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
264 ("rtw_if_up:bDriverStopped(%d) OR bSurpriseRemoved(%d)",
265 padapter->bDriverStopped, padapter->bSurpriseRemoved));
266 res = false;
267 } else {
268 res = true;
269 }
270 return res;
271 }
272
rtw_generate_random_ibss(u8 * pibss)273 void rtw_generate_random_ibss(u8 *pibss)
274 {
275 u32 curtime = jiffies;
276
277 pibss[0] = 0x02; /* in ad-hoc mode bit1 must set to 1 */
278 pibss[1] = 0x11;
279 pibss[2] = 0x87;
280 pibss[3] = (u8)(curtime & 0xff);/* p[0]; */
281 pibss[4] = (u8)((curtime>>8) & 0xff);/* p[1]; */
282 pibss[5] = (u8)((curtime>>16) & 0xff);/* p[2]; */
283 return;
284 }
285
rtw_get_capability_from_ie(u8 * ie)286 u8 *rtw_get_capability_from_ie(u8 *ie)
287 {
288 return ie + 8 + 2;
289 }
290
291
rtw_get_capability(struct wlan_bssid_ex * bss)292 u16 rtw_get_capability(struct wlan_bssid_ex *bss)
293 {
294 __le16 val;
295
296 memcpy((u8 *)&val, rtw_get_capability_from_ie(bss->IEs), 2);
297
298 return le16_to_cpu(val);
299 }
300
rtw_get_beacon_interval_from_ie(u8 * ie)301 u8 *rtw_get_beacon_interval_from_ie(u8 *ie)
302 {
303 return ie + 8;
304 }
305
rtw_alloc_network(struct mlme_priv * pmlmepriv)306 static struct wlan_network *rtw_alloc_network(struct mlme_priv *pmlmepriv)
307 {
308 return _rtw_alloc_network(pmlmepriv);
309 }
310
rtw_free_network_nolock(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork)311 static void rtw_free_network_nolock(struct mlme_priv *pmlmepriv,
312 struct wlan_network *pnetwork)
313 {
314 _rtw_free_network_nolock(pmlmepriv, pnetwork);
315 }
316
rtw_is_same_ibss(struct adapter * adapter,struct wlan_network * pnetwork)317 int rtw_is_same_ibss(struct adapter *adapter, struct wlan_network *pnetwork)
318 {
319 int ret = true;
320 struct security_priv *psecuritypriv = &adapter->securitypriv;
321
322 if ((psecuritypriv->dot11PrivacyAlgrthm != _NO_PRIVACY_) &&
323 (pnetwork->network.Privacy == 0))
324 ret = false;
325 else if ((psecuritypriv->dot11PrivacyAlgrthm == _NO_PRIVACY_) &&
326 (pnetwork->network.Privacy == 1))
327 ret = false;
328 else
329 ret = true;
330 return ret;
331 }
332
is_same_ess(struct wlan_bssid_ex * a,struct wlan_bssid_ex * b)333 static int is_same_ess(struct wlan_bssid_ex *a, struct wlan_bssid_ex *b)
334 {
335 return (a->Ssid.SsidLength == b->Ssid.SsidLength) &&
336 !memcmp(a->Ssid.Ssid, b->Ssid.Ssid, a->Ssid.SsidLength);
337 }
338
is_same_network(struct wlan_bssid_ex * src,struct wlan_bssid_ex * dst)339 int is_same_network(struct wlan_bssid_ex *src, struct wlan_bssid_ex *dst)
340 {
341 u16 s_cap, d_cap;
342 __le16 le_scap, le_dcap;
343
344 memcpy((u8 *)&le_scap, rtw_get_capability_from_ie(src->IEs), 2);
345 memcpy((u8 *)&le_dcap, rtw_get_capability_from_ie(dst->IEs), 2);
346
347
348 s_cap = le16_to_cpu(le_scap);
349 d_cap = le16_to_cpu(le_dcap);
350
351 return ((src->Ssid.SsidLength == dst->Ssid.SsidLength) &&
352 ((!memcmp(src->MacAddress, dst->MacAddress, ETH_ALEN)) == true) &&
353 ((!memcmp(src->Ssid.Ssid, dst->Ssid.Ssid, src->Ssid.SsidLength)) == true) &&
354 ((s_cap & WLAN_CAPABILITY_IBSS) ==
355 (d_cap & WLAN_CAPABILITY_IBSS)) &&
356 ((s_cap & WLAN_CAPABILITY_ESS) ==
357 (d_cap & WLAN_CAPABILITY_ESS)));
358 }
359
rtw_get_oldest_wlan_network(struct __queue * scanned_queue)360 struct wlan_network *rtw_get_oldest_wlan_network(struct __queue *scanned_queue)
361 {
362 struct list_head *plist, *phead;
363 struct wlan_network *pwlan = NULL;
364 struct wlan_network *oldest = NULL;
365
366 phead = get_list_head(scanned_queue);
367
368 plist = phead->next;
369
370 while (1) {
371 if (phead == plist)
372 break;
373
374 pwlan = container_of(plist, struct wlan_network, list);
375
376 if (!pwlan->fixed) {
377 if (oldest == NULL || time_after(oldest->last_scanned, pwlan->last_scanned))
378 oldest = pwlan;
379 }
380
381 plist = plist->next;
382 }
383 return oldest;
384 }
385
update_network(struct wlan_bssid_ex * dst,struct wlan_bssid_ex * src,struct adapter * padapter,bool update_ie)386 void update_network(struct wlan_bssid_ex *dst, struct wlan_bssid_ex *src,
387 struct adapter *padapter, bool update_ie)
388 {
389 long rssi_ori = dst->Rssi;
390 u8 sq_smp = src->PhyInfo.SignalQuality;
391 u8 ss_final;
392 u8 sq_final;
393 long rssi_final;
394
395 rtw_hal_antdiv_rssi_compared(padapter, dst, src); /* this will update src.Rssi, need consider again */
396
397 /* The rule below is 1/5 for sample value, 4/5 for history value */
398 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) && is_same_network(&(padapter->mlmepriv.cur_network.network), src)) {
399 /* Take the recvpriv's value for the connected AP*/
400 ss_final = padapter->recvpriv.signal_strength;
401 sq_final = padapter->recvpriv.signal_qual;
402 /* the rssi value here is undecorated, and will be used for antenna diversity */
403 if (sq_smp != 101) /* from the right channel */
404 rssi_final = (src->Rssi+dst->Rssi*4)/5;
405 else
406 rssi_final = rssi_ori;
407 } else {
408 if (sq_smp != 101) { /* from the right channel */
409 ss_final = ((u32)(src->PhyInfo.SignalStrength)+(u32)(dst->PhyInfo.SignalStrength)*4)/5;
410 sq_final = ((u32)(src->PhyInfo.SignalQuality)+(u32)(dst->PhyInfo.SignalQuality)*4)/5;
411 rssi_final = (src->Rssi+dst->Rssi*4)/5;
412 } else {
413 /* bss info not receiving from the right channel, use the original RX signal infos */
414 ss_final = dst->PhyInfo.SignalStrength;
415 sq_final = dst->PhyInfo.SignalQuality;
416 rssi_final = dst->Rssi;
417 }
418 }
419 if (update_ie)
420 memcpy((u8 *)dst, (u8 *)src, get_wlan_bssid_ex_sz(src));
421 dst->PhyInfo.SignalStrength = ss_final;
422 dst->PhyInfo.SignalQuality = sq_final;
423 dst->Rssi = rssi_final;
424
425 }
426
update_current_network(struct adapter * adapter,struct wlan_bssid_ex * pnetwork)427 static void update_current_network(struct adapter *adapter, struct wlan_bssid_ex *pnetwork)
428 {
429 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
430
431 if ((check_fwstate(pmlmepriv, _FW_LINKED) == true) &&
432 (is_same_network(&(pmlmepriv->cur_network.network), pnetwork))) {
433 update_network(&(pmlmepriv->cur_network.network), pnetwork, adapter, true);
434 rtw_update_protection(adapter, (pmlmepriv->cur_network.network.IEs) + sizeof(struct ndis_802_11_fixed_ie),
435 pmlmepriv->cur_network.network.IELength);
436 }
437 }
438
439 /*
440 Caller must hold pmlmepriv->lock first.
441 */
rtw_update_scanned_network(struct adapter * adapter,struct wlan_bssid_ex * target)442 void rtw_update_scanned_network(struct adapter *adapter, struct wlan_bssid_ex *target)
443 {
444 struct list_head *plist, *phead;
445 u32 bssid_ex_sz;
446 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
447 struct __queue *queue = &(pmlmepriv->scanned_queue);
448 struct wlan_network *pnetwork = NULL;
449 struct wlan_network *oldest = NULL;
450
451 spin_lock_bh(&queue->lock);
452 phead = get_list_head(queue);
453 plist = phead->next;
454
455 while (phead != plist) {
456 pnetwork = container_of(plist, struct wlan_network, list);
457
458 if (is_same_network(&(pnetwork->network), target))
459 break;
460 if ((oldest == ((struct wlan_network *)0)) ||
461 time_after(oldest->last_scanned, pnetwork->last_scanned))
462 oldest = pnetwork;
463 plist = plist->next;
464 }
465 /* If we didn't find a match, then get a new network slot to initialize
466 * with this beacon's information */
467 if (phead == plist) {
468 if (list_empty(&(pmlmepriv->free_bss_pool.queue))) {
469 /* If there are no more slots, expire the oldest */
470 pnetwork = oldest;
471
472 rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(target->PhyInfo.Optimum_antenna));
473 memcpy(&(pnetwork->network), target, get_wlan_bssid_ex_sz(target));
474 /* variable initialize */
475 pnetwork->fixed = false;
476 pnetwork->last_scanned = jiffies;
477
478 pnetwork->network_type = 0;
479 pnetwork->aid = 0;
480 pnetwork->join_res = 0;
481
482 /* bss info not receiving from the right channel */
483 if (pnetwork->network.PhyInfo.SignalQuality == 101)
484 pnetwork->network.PhyInfo.SignalQuality = 0;
485 } else {
486 /* Otherwise just pull from the free list */
487
488 pnetwork = rtw_alloc_network(pmlmepriv); /* will update scan_time */
489
490 if (pnetwork == NULL) {
491 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n\n\nsomething wrong here\n\n\n"));
492 goto exit;
493 }
494
495 bssid_ex_sz = get_wlan_bssid_ex_sz(target);
496 target->Length = bssid_ex_sz;
497 rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(target->PhyInfo.Optimum_antenna));
498 memcpy(&(pnetwork->network), target, bssid_ex_sz);
499
500 pnetwork->last_scanned = jiffies;
501
502 /* bss info not receiving from the right channel */
503 if (pnetwork->network.PhyInfo.SignalQuality == 101)
504 pnetwork->network.PhyInfo.SignalQuality = 0;
505 list_add_tail(&(pnetwork->list), &(queue->queue));
506 }
507 } else {
508 /* we have an entry and we are going to update it. But this entry may
509 * be already expired. In this case we do the same as we found a new
510 * net and call the new_net handler
511 */
512 bool update_ie = true;
513
514 pnetwork->last_scanned = jiffies;
515
516 /* target.Reserved[0]== 1, means that scanned network is a bcn frame. */
517 if ((pnetwork->network.IELength > target->IELength) && (target->Reserved[0] == 1))
518 update_ie = false;
519
520 update_network(&(pnetwork->network), target, adapter, update_ie);
521 }
522
523 exit:
524 spin_unlock_bh(&queue->lock);
525
526 }
527
rtw_add_network(struct adapter * adapter,struct wlan_bssid_ex * pnetwork)528 static void rtw_add_network(struct adapter *adapter,
529 struct wlan_bssid_ex *pnetwork)
530 {
531 update_current_network(adapter, pnetwork);
532 rtw_update_scanned_network(adapter, pnetwork);
533 }
534
535 /*
536 * select the desired network based on the capability of the (i)bss.
537 * check items: (1) security
538 * (2) network_type
539 * (3) WMM
540 * (4) HT
541 * (5) others
542 */
rtw_is_desired_network(struct adapter * adapter,struct wlan_network * pnetwork)543 static int rtw_is_desired_network(struct adapter *adapter, struct wlan_network *pnetwork)
544 {
545 struct security_priv *psecuritypriv = &adapter->securitypriv;
546 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
547 u32 desired_encmode;
548 u32 privacy;
549
550 /* u8 wps_ie[512]; */
551 uint wps_ielen;
552
553 int bselected = true;
554
555 desired_encmode = psecuritypriv->ndisencryptstatus;
556 privacy = pnetwork->network.Privacy;
557
558 if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
559 if (rtw_get_wps_ie(pnetwork->network.IEs+_FIXED_IE_LENGTH_, pnetwork->network.IELength-_FIXED_IE_LENGTH_, NULL, &wps_ielen) != NULL)
560 return true;
561 else
562 return false;
563 }
564 if (adapter->registrypriv.wifi_spec == 1) { /* for correct flow of 8021X to do.... */
565 if ((desired_encmode == Ndis802_11EncryptionDisabled) && (privacy != 0))
566 bselected = false;
567 }
568
569
570 if ((desired_encmode != Ndis802_11EncryptionDisabled) && (privacy == 0)) {
571 DBG_88E("desired_encmode: %d, privacy: %d\n", desired_encmode, privacy);
572 bselected = false;
573 }
574
575 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) {
576 if (pnetwork->network.InfrastructureMode != pmlmepriv->cur_network.network.InfrastructureMode)
577 bselected = false;
578 }
579
580
581 return bselected;
582 }
583
584 /* TODO: Perry: For Power Management */
rtw_atimdone_event_callback(struct adapter * adapter,u8 * pbuf)585 void rtw_atimdone_event_callback(struct adapter *adapter, u8 *pbuf)
586 {
587 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("receive atimdone_evet\n"));
588 return;
589 }
590
591
rtw_survey_event_callback(struct adapter * adapter,u8 * pbuf)592 void rtw_survey_event_callback(struct adapter *adapter, u8 *pbuf)
593 {
594 u32 len;
595 struct wlan_bssid_ex *pnetwork;
596 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
597
598 pnetwork = (struct wlan_bssid_ex *)pbuf;
599
600 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_survey_event_callback, ssid=%s\n", pnetwork->Ssid.Ssid));
601
602 len = get_wlan_bssid_ex_sz(pnetwork);
603 if (len > (sizeof(struct wlan_bssid_ex))) {
604 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n****rtw_survey_event_callback: return a wrong bss ***\n"));
605 return;
606 }
607 spin_lock_bh(&pmlmepriv->lock);
608
609 /* update IBSS_network 's timestamp */
610 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) == true) {
611 if (!memcmp(&(pmlmepriv->cur_network.network.MacAddress), pnetwork->MacAddress, ETH_ALEN)) {
612 struct wlan_network *ibss_wlan = NULL;
613
614 memcpy(pmlmepriv->cur_network.network.IEs, pnetwork->IEs, 8);
615 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
616 ibss_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->MacAddress);
617 if (ibss_wlan) {
618 memcpy(ibss_wlan->network.IEs, pnetwork->IEs, 8);
619 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
620 goto exit;
621 }
622 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
623 }
624 }
625
626 /* lock pmlmepriv->lock when you accessing network_q */
627 if ((check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) == false) {
628 if (pnetwork->Ssid.Ssid[0] == 0)
629 pnetwork->Ssid.SsidLength = 0;
630 rtw_add_network(adapter, pnetwork);
631 }
632
633 exit:
634
635 spin_unlock_bh(&pmlmepriv->lock);
636 return;
637 }
638
rtw_surveydone_event_callback(struct adapter * adapter,u8 * pbuf)639 void rtw_surveydone_event_callback(struct adapter *adapter, u8 *pbuf)
640 {
641 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
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);
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
rtw_dummy_event_callback(struct adapter * adapter,u8 * pbuf)725 void rtw_dummy_event_callback(struct adapter *adapter, u8 *pbuf)
726 {
727 }
728
rtw_fwdbg_event_callback(struct adapter * adapter,u8 * pbuf)729 void rtw_fwdbg_event_callback(struct adapter *adapter, u8 *pbuf)
730 {
731 }
732
free_scanqueue(struct mlme_priv * pmlmepriv)733 static void free_scanqueue(struct mlme_priv *pmlmepriv)
734 {
735 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
736 struct __queue *scan_queue = &pmlmepriv->scanned_queue;
737 struct list_head *plist, *phead, *ptemp;
738
739 RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, ("+free_scanqueue\n"));
740 spin_lock_bh(&scan_queue->lock);
741 spin_lock_bh(&free_queue->lock);
742
743 phead = get_list_head(scan_queue);
744 plist = phead->next;
745
746 while (plist != phead) {
747 ptemp = plist->next;
748 list_del_init(plist);
749 list_add_tail(plist, &free_queue->queue);
750 plist = ptemp;
751 pmlmepriv->num_of_scanned--;
752 }
753
754 spin_unlock_bh(&free_queue->lock);
755 spin_unlock_bh(&scan_queue->lock);
756 }
757
758 /*
759 *rtw_free_assoc_resources: the caller has to lock pmlmepriv->lock
760 */
rtw_free_assoc_resources(struct adapter * adapter)761 void rtw_free_assoc_resources(struct adapter *adapter)
762 {
763 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
764
765 spin_lock_bh(&pmlmepriv->scanned_queue.lock);
766 rtw_free_assoc_resources_locked(adapter);
767 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
768 }
769
770 /*
771 *rtw_free_assoc_resources_locked: the caller has to lock pmlmepriv->lock
772 */
rtw_free_assoc_resources_locked(struct adapter * adapter)773 void rtw_free_assoc_resources_locked(struct adapter *adapter)
774 {
775 struct wlan_network *pwlan = NULL;
776 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
777 struct sta_priv *pstapriv = &adapter->stapriv;
778 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
779
780 RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, ("+rtw_free_assoc_resources\n"));
781 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
782 ("tgt_network->network.MacAddress=%pM ssid=%s\n",
783 tgt_network->network.MacAddress, tgt_network->network.Ssid.Ssid));
784
785 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE)) {
786 struct sta_info *psta;
787
788 psta = rtw_get_stainfo(&adapter->stapriv, tgt_network->network.MacAddress);
789
790 spin_lock_bh(&(pstapriv->sta_hash_lock));
791 rtw_free_stainfo(adapter, psta);
792 spin_unlock_bh(&pstapriv->sta_hash_lock);
793 }
794
795 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE | WIFI_AP_STATE)) {
796 struct sta_info *psta;
797
798 rtw_free_all_stainfo(adapter);
799
800 psta = rtw_get_bcmc_stainfo(adapter);
801 spin_lock_bh(&(pstapriv->sta_hash_lock));
802 rtw_free_stainfo(adapter, psta);
803 spin_unlock_bh(&pstapriv->sta_hash_lock);
804
805 rtw_init_bcmc_stainfo(adapter);
806 }
807
808
809 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
810 if (pwlan)
811 pwlan->fixed = false;
812 else
813 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_free_assoc_resources:pwlan==NULL\n\n"));
814
815 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) && (adapter->stapriv.asoc_sta_count == 1)))
816 rtw_free_network_nolock(pmlmepriv, pwlan);
817
818 pmlmepriv->key_mask = 0;
819 }
820
821 /*
822 *rtw_indicate_connect: the caller has to lock pmlmepriv->lock
823 */
rtw_indicate_connect(struct adapter * padapter)824 void rtw_indicate_connect(struct adapter *padapter)
825 {
826 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
827
828 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_indicate_connect\n"));
829
830 pmlmepriv->to_join = false;
831
832 if (!check_fwstate(&padapter->mlmepriv, _FW_LINKED)) {
833 set_fwstate(pmlmepriv, _FW_LINKED);
834
835 rtw_led_control(padapter, LED_CTL_LINK);
836
837 rtw_os_indicate_connect(padapter);
838 }
839
840 pmlmepriv->to_roaming = 0;
841
842 rtw_set_scan_deny(padapter, 3000);
843
844 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("-rtw_indicate_connect: fw_state=0x%08x\n", get_fwstate(pmlmepriv)));
845 }
846
847 /*
848 *rtw_indicate_disconnect: the caller has to lock pmlmepriv->lock
849 */
rtw_indicate_disconnect(struct adapter * padapter)850 void rtw_indicate_disconnect(struct adapter *padapter)
851 {
852 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
853
854 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_indicate_disconnect\n"));
855
856 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING | WIFI_UNDER_WPS);
857
858
859 if (pmlmepriv->to_roaming > 0)
860 _clr_fwstate_(pmlmepriv, _FW_LINKED);
861
862 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) ||
863 (pmlmepriv->to_roaming <= 0)) {
864 rtw_os_indicate_disconnect(padapter);
865
866 _clr_fwstate_(pmlmepriv, _FW_LINKED);
867 rtw_led_control(padapter, LED_CTL_NO_LINK);
868 rtw_clear_scan_deny(padapter);
869 }
870
871 rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_DISCONNECT, 1);
872 }
873
rtw_indicate_scan_done(struct adapter * padapter,bool aborted)874 inline void rtw_indicate_scan_done(struct adapter *padapter, bool aborted)
875 {
876 rtw_os_indicate_scan_done(padapter, aborted);
877 }
878
rtw_scan_abort(struct adapter * adapter)879 void rtw_scan_abort(struct adapter *adapter)
880 {
881 u32 start;
882 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
883 struct mlme_ext_priv *pmlmeext = &(adapter->mlmeextpriv);
884
885 start = jiffies;
886 pmlmeext->scan_abort = true;
887 while (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY) &&
888 rtw_get_passing_time_ms(start) <= 200) {
889 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
890 break;
891 DBG_88E(FUNC_NDEV_FMT"fw_state=_FW_UNDER_SURVEY!\n", FUNC_NDEV_ARG(adapter->pnetdev));
892 msleep(20);
893 }
894 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
895 if (!adapter->bDriverStopped && !adapter->bSurpriseRemoved)
896 DBG_88E(FUNC_NDEV_FMT"waiting for scan_abort time out!\n", FUNC_NDEV_ARG(adapter->pnetdev));
897 rtw_indicate_scan_done(adapter, true);
898 }
899 pmlmeext->scan_abort = false;
900 }
901
rtw_joinbss_update_stainfo(struct adapter * padapter,struct wlan_network * pnetwork)902 static struct sta_info *rtw_joinbss_update_stainfo(struct adapter *padapter, struct wlan_network *pnetwork)
903 {
904 int i;
905 struct sta_info *bmc_sta, *psta = NULL;
906 struct recv_reorder_ctrl *preorder_ctrl;
907 struct sta_priv *pstapriv = &padapter->stapriv;
908
909 psta = rtw_get_stainfo(pstapriv, pnetwork->network.MacAddress);
910 if (psta == NULL)
911 psta = rtw_alloc_stainfo(pstapriv, pnetwork->network.MacAddress);
912
913 if (psta) { /* update ptarget_sta */
914 DBG_88E("%s\n", __func__);
915 psta->aid = pnetwork->join_res;
916 psta->mac_id = 0;
917 /* sta mode */
918 rtw_hal_set_odm_var(padapter, HAL_ODM_STA_INFO, psta, true);
919 /* security related */
920 if (padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
921 padapter->securitypriv.binstallGrpkey = false;
922 padapter->securitypriv.busetkipkey = false;
923 padapter->securitypriv.bgrpkey_handshake = false;
924 psta->ieee8021x_blocked = true;
925 psta->dot118021XPrivacy = padapter->securitypriv.dot11PrivacyAlgrthm;
926 memset((u8 *)&psta->dot118021x_UncstKey, 0, sizeof(union Keytype));
927 memset((u8 *)&psta->dot11tkiprxmickey, 0, sizeof(union Keytype));
928 memset((u8 *)&psta->dot11tkiptxmickey, 0, sizeof(union Keytype));
929 memset((u8 *)&psta->dot11txpn, 0, sizeof(union pn48));
930 memset((u8 *)&psta->dot11rxpn, 0, sizeof(union pn48));
931 }
932 /*
933 * Commented by Albert 2012/07/21
934 * When doing the WPS, the wps_ie_len won't equal to 0
935 * And the Wi-Fi driver shouldn't allow the data
936 * packet to be tramsmitted.
937 */
938 if (padapter->securitypriv.wps_ie_len != 0) {
939 psta->ieee8021x_blocked = true;
940 padapter->securitypriv.wps_ie_len = 0;
941 }
942 /* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info */
943 /* if A-MPDU Rx is enabled, resetting rx_ordering_ctrl wstart_b(indicate_seq) to default value = 0xffff */
944 /* todo: check if AP can send A-MPDU packets */
945 for (i = 0; i < 16; i++) {
946 /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
947 preorder_ctrl = &psta->recvreorder_ctrl[i];
948 preorder_ctrl->enable = false;
949 preorder_ctrl->indicate_seq = 0xffff;
950 preorder_ctrl->wend_b = 0xffff;
951 preorder_ctrl->wsize_b = 64;/* max_ampdu_sz; ex. 32(kbytes) -> wsize_b = 32 */
952 }
953 bmc_sta = rtw_get_bcmc_stainfo(padapter);
954 if (bmc_sta) {
955 for (i = 0; i < 16; i++) {
956 /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
957 preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
958 preorder_ctrl->enable = false;
959 preorder_ctrl->indicate_seq = 0xffff;
960 preorder_ctrl->wend_b = 0xffff;
961 preorder_ctrl->wsize_b = 64;/* max_ampdu_sz; ex. 32(kbytes) -> wsize_b = 32 */
962 }
963 }
964 /* misc. */
965 update_sta_info(padapter, psta);
966 }
967 return psta;
968 }
969
970 /* pnetwork: returns from rtw_joinbss_event_callback */
971 /* ptarget_wlan: found from scanned_queue */
rtw_joinbss_update_network(struct adapter * padapter,struct wlan_network * ptarget_wlan,struct wlan_network * pnetwork)972 static void rtw_joinbss_update_network(struct adapter *padapter, struct wlan_network *ptarget_wlan, struct wlan_network *pnetwork)
973 {
974 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
975 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
976
977 DBG_88E("%s\n", __func__);
978
979 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
980 ("\nfw_state:%x, BSSID:%pM\n",
981 get_fwstate(pmlmepriv), pnetwork->network.MacAddress));
982
983
984 /* why not use ptarget_wlan?? */
985 memcpy(&cur_network->network, &pnetwork->network, pnetwork->network.Length);
986 /* some IEs in pnetwork is wrong, so we should use ptarget_wlan IEs */
987 cur_network->network.IELength = ptarget_wlan->network.IELength;
988 memcpy(&cur_network->network.IEs[0], &ptarget_wlan->network.IEs[0], MAX_IE_SZ);
989
990 cur_network->aid = pnetwork->join_res;
991
992
993 rtw_set_signal_stat_timer(&padapter->recvpriv);
994 padapter->recvpriv.signal_strength = ptarget_wlan->network.PhyInfo.SignalStrength;
995 padapter->recvpriv.signal_qual = ptarget_wlan->network.PhyInfo.SignalQuality;
996 /* the ptarget_wlan->network.Rssi is raw data, we use ptarget_wlan->network.PhyInfo.SignalStrength instead (has scaled) */
997 padapter->recvpriv.rssi = translate_percentage_to_dbm(ptarget_wlan->network.PhyInfo.SignalStrength);
998 rtw_set_signal_stat_timer(&padapter->recvpriv);
999
1000 /* update fw_state will clr _FW_UNDER_LINKING here indirectly */
1001 switch (pnetwork->network.InfrastructureMode) {
1002 case Ndis802_11Infrastructure:
1003 if (pmlmepriv->fw_state&WIFI_UNDER_WPS)
1004 pmlmepriv->fw_state = WIFI_STATION_STATE|WIFI_UNDER_WPS;
1005 else
1006 pmlmepriv->fw_state = WIFI_STATION_STATE;
1007 break;
1008 case Ndis802_11IBSS:
1009 pmlmepriv->fw_state = WIFI_ADHOC_STATE;
1010 break;
1011 default:
1012 pmlmepriv->fw_state = WIFI_NULL_STATE;
1013 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Invalid network_mode\n"));
1014 break;
1015 }
1016
1017 rtw_update_protection(padapter, (cur_network->network.IEs) +
1018 sizeof(struct ndis_802_11_fixed_ie),
1019 (cur_network->network.IELength));
1020 rtw_update_ht_cap(padapter, cur_network->network.IEs, cur_network->network.IELength);
1021 }
1022
1023 /* Notes: the function could be > passive_level (the same context as Rx tasklet) */
1024 /* pnetwork: returns from rtw_joinbss_event_callback */
1025 /* ptarget_wlan: found from scanned_queue */
1026 /* if join_res > 0, for (fw_state == WIFI_STATION_STATE), we check if "ptarget_sta" & "ptarget_wlan" exist. */
1027 /* if join_res > 0, for (fw_state == WIFI_ADHOC_STATE), we only check if "ptarget_wlan" exist. */
1028 /* if join_res > 0, update "cur_network->network" from "pnetwork->network" if (ptarget_wlan != NULL). */
1029
rtw_joinbss_event_prehandle(struct adapter * adapter,u8 * pbuf)1030 void rtw_joinbss_event_prehandle(struct adapter *adapter, u8 *pbuf)
1031 {
1032 struct sta_info *ptarget_sta = NULL, *pcur_sta = NULL;
1033 struct sta_priv *pstapriv = &adapter->stapriv;
1034 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1035 struct wlan_network *pnetwork = (struct wlan_network *)pbuf;
1036 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
1037 struct wlan_network *pcur_wlan = NULL, *ptarget_wlan = NULL;
1038 unsigned int the_same_macaddr = false;
1039
1040 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("joinbss event call back received with res=%d\n", pnetwork->join_res));
1041
1042 rtw_get_encrypt_decrypt_from_registrypriv(adapter);
1043
1044
1045 if (pmlmepriv->assoc_ssid.SsidLength == 0)
1046 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("@@@@@ joinbss event call back for Any SSid\n"));
1047 else
1048 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("@@@@@ rtw_joinbss_event_callback for SSid:%s\n", pmlmepriv->assoc_ssid.Ssid));
1049
1050 the_same_macaddr = !memcmp(pnetwork->network.MacAddress, cur_network->network.MacAddress, ETH_ALEN);
1051
1052 pnetwork->network.Length = get_wlan_bssid_ex_sz(&pnetwork->network);
1053 if (pnetwork->network.Length > sizeof(struct wlan_bssid_ex)) {
1054 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("\n\n ***joinbss_evt_callback return a wrong bss ***\n\n"));
1055 return;
1056 }
1057
1058 spin_lock_bh(&pmlmepriv->lock);
1059
1060 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\nrtw_joinbss_event_callback!! _enter_critical\n"));
1061
1062 if (pnetwork->join_res > 0) {
1063 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1064 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
1065 /* s1. find ptarget_wlan */
1066 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1067 if (the_same_macaddr) {
1068 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1069 } else {
1070 pcur_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1071 if (pcur_wlan)
1072 pcur_wlan->fixed = false;
1073
1074 pcur_sta = rtw_get_stainfo(pstapriv, cur_network->network.MacAddress);
1075 if (pcur_sta) {
1076 spin_lock_bh(&(pstapriv->sta_hash_lock));
1077 rtw_free_stainfo(adapter, pcur_sta);
1078 spin_unlock_bh(&pstapriv->sta_hash_lock);
1079 }
1080
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 } else {
1088 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->network.MacAddress);
1089 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1090 if (ptarget_wlan)
1091 ptarget_wlan->fixed = true;
1092 }
1093 }
1094
1095 /* s2. update cur_network */
1096 if (ptarget_wlan) {
1097 rtw_joinbss_update_network(adapter, ptarget_wlan, pnetwork);
1098 } else {
1099 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't find ptarget_wlan when joinbss_event callback\n"));
1100 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1101 goto ignore_joinbss_callback;
1102 }
1103
1104
1105 /* s3. find ptarget_sta & update ptarget_sta after update cur_network only for station mode */
1106 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1107 ptarget_sta = rtw_joinbss_update_stainfo(adapter, pnetwork);
1108 if (ptarget_sta == NULL) {
1109 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't update stainfo when joinbss_event callback\n"));
1110 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1111 goto ignore_joinbss_callback;
1112 }
1113 }
1114
1115 /* s4. indicate connect */
1116 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
1117 rtw_indicate_connect(adapter);
1118 } else {
1119 /* adhoc mode will rtw_indicate_connect when rtw_stassoc_event_callback */
1120 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("adhoc mode, fw_state:%x", get_fwstate(pmlmepriv)));
1121 }
1122
1123 /* s5. Cancle assoc_timer */
1124 del_timer_sync(&pmlmepriv->assoc_timer);
1125
1126 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("Cancle assoc_timer\n"));
1127
1128 } else {
1129 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_joinbss_event_callback err: fw_state:%x", get_fwstate(pmlmepriv)));
1130 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1131 goto ignore_joinbss_callback;
1132 }
1133
1134 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1135
1136 } else if (pnetwork->join_res == -4) {
1137 rtw_reset_securitypriv(adapter);
1138 mod_timer(&pmlmepriv->assoc_timer,
1139 jiffies + msecs_to_jiffies(1));
1140
1141 if ((check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) == true) {
1142 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("fail! clear _FW_UNDER_LINKING ^^^fw_state=%x\n", get_fwstate(pmlmepriv)));
1143 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1144 }
1145 } else { /* if join_res < 0 (join fails), then try again */
1146 mod_timer(&pmlmepriv->assoc_timer,
1147 jiffies + msecs_to_jiffies(1));
1148 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1149 }
1150
1151 ignore_joinbss_callback:
1152 spin_unlock_bh(&pmlmepriv->lock);
1153 }
1154
rtw_joinbss_event_callback(struct adapter * adapter,u8 * pbuf)1155 void rtw_joinbss_event_callback(struct adapter *adapter, u8 *pbuf)
1156 {
1157 struct wlan_network *pnetwork = (struct wlan_network *)pbuf;
1158
1159 mlmeext_joinbss_event_callback(adapter, pnetwork->join_res);
1160
1161 rtw_os_xmit_schedule(adapter);
1162 }
1163
search_max_mac_id(struct adapter * padapter)1164 static u8 search_max_mac_id(struct adapter *padapter)
1165 {
1166 u8 mac_id;
1167 #if defined(CONFIG_88EU_AP_MODE)
1168 u8 aid;
1169 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
1170 struct sta_priv *pstapriv = &padapter->stapriv;
1171 #endif
1172 struct mlme_ext_priv *pmlmeext = &(padapter->mlmeextpriv);
1173 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
1174
1175 #if defined(CONFIG_88EU_AP_MODE)
1176 if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
1177 for (aid = (pstapriv->max_num_sta); aid > 0; aid--) {
1178 if (pstapriv->sta_aid[aid-1] != NULL)
1179 break;
1180 }
1181 mac_id = aid + 1;
1182 } else
1183 #endif
1184 {/* adhoc id = 31~2 */
1185 for (mac_id = (NUM_STA-1); mac_id >= IBSS_START_MAC_ID; mac_id--) {
1186 if (pmlmeinfo->FW_sta_info[mac_id].status == 1)
1187 break;
1188 }
1189 }
1190 return mac_id;
1191 }
1192
1193 /* FOR AP , AD-HOC mode */
rtw_stassoc_hw_rpt(struct adapter * adapter,struct sta_info * psta)1194 void rtw_stassoc_hw_rpt(struct adapter *adapter, struct sta_info *psta)
1195 {
1196 u16 media_status;
1197 u8 macid;
1198
1199 if (psta == NULL)
1200 return;
1201
1202 macid = search_max_mac_id(adapter);
1203 rtw_hal_set_hwreg(adapter, HW_VAR_TX_RPT_MAX_MACID, (u8 *)&macid);
1204 media_status = (psta->mac_id<<8)|1; /* MACID|OPMODE:1 connect */
1205 rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status);
1206 }
1207
rtw_stassoc_event_callback(struct adapter * adapter,u8 * pbuf)1208 void rtw_stassoc_event_callback(struct adapter *adapter, u8 *pbuf)
1209 {
1210 struct sta_info *psta;
1211 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1212 struct stassoc_event *pstassoc = (struct stassoc_event *)pbuf;
1213 struct wlan_network *cur_network = &(pmlmepriv->cur_network);
1214 struct wlan_network *ptarget_wlan = NULL;
1215
1216 if (rtw_access_ctrl(adapter, pstassoc->macaddr) == false)
1217 return;
1218
1219 #if defined(CONFIG_88EU_AP_MODE)
1220 if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
1221 psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1222 if (psta) {
1223 ap_sta_info_defer_update(adapter, psta);
1224 rtw_stassoc_hw_rpt(adapter, psta);
1225 }
1226 return;
1227 }
1228 #endif
1229 /* for AD-HOC mode */
1230 psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1231 if (psta != NULL) {
1232 /* the sta have been in sta_info_queue => do nothing */
1233 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Error: rtw_stassoc_event_callback: sta has been in sta_hash_queue\n"));
1234 return; /* between drv has received this event before and fw have not yet to set key to CAM_ENTRY) */
1235 }
1236 psta = rtw_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
1237 if (psta == NULL) {
1238 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Can't alloc sta_info when rtw_stassoc_event_callback\n"));
1239 return;
1240 }
1241 /* to do: init sta_info variable */
1242 psta->qos_option = 0;
1243 psta->mac_id = (uint)pstassoc->cam_id;
1244 DBG_88E("%s\n", __func__);
1245 /* for ad-hoc mode */
1246 rtw_hal_set_odm_var(adapter, HAL_ODM_STA_INFO, psta, true);
1247 rtw_stassoc_hw_rpt(adapter, psta);
1248 if (adapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X)
1249 psta->dot118021XPrivacy = adapter->securitypriv.dot11PrivacyAlgrthm;
1250 psta->ieee8021x_blocked = false;
1251 spin_lock_bh(&pmlmepriv->lock);
1252 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) ||
1253 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE))) {
1254 if (adapter->stapriv.asoc_sta_count == 2) {
1255 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1256 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
1257 if (ptarget_wlan)
1258 ptarget_wlan->fixed = true;
1259 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1260 /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
1261 rtw_indicate_connect(adapter);
1262 }
1263 }
1264 spin_unlock_bh(&pmlmepriv->lock);
1265 mlmeext_sta_add_event_callback(adapter, psta);
1266 }
1267
rtw_stadel_event_callback(struct adapter * adapter,u8 * pbuf)1268 void rtw_stadel_event_callback(struct adapter *adapter, u8 *pbuf)
1269 {
1270 int mac_id = -1;
1271 struct sta_info *psta;
1272 struct wlan_network *pwlan = NULL;
1273 struct wlan_bssid_ex *pdev_network = NULL;
1274 u8 *pibss = NULL;
1275 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1276 struct stadel_event *pstadel = (struct stadel_event *)pbuf;
1277 struct sta_priv *pstapriv = &adapter->stapriv;
1278 struct wlan_network *tgt_network = &(pmlmepriv->cur_network);
1279
1280 psta = rtw_get_stainfo(&adapter->stapriv, pstadel->macaddr);
1281 if (psta)
1282 mac_id = psta->mac_id;
1283 else
1284 mac_id = pstadel->mac_id;
1285
1286 DBG_88E("%s(mac_id=%d)=%pM\n", __func__, mac_id, pstadel->macaddr);
1287
1288 if (mac_id >= 0) {
1289 u16 media_status;
1290 media_status = (mac_id<<8)|0; /* MACID|OPMODE:0 means disconnect */
1291 /* for STA, AP, ADHOC mode, report disconnect stauts to FW */
1292 rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status);
1293 }
1294
1295 if (check_fwstate(pmlmepriv, WIFI_AP_STATE))
1296 return;
1297
1298 mlmeext_sta_del_event_callback(adapter);
1299
1300 spin_lock_bh(&pmlmepriv->lock);
1301
1302 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
1303 if (pmlmepriv->to_roaming > 0)
1304 pmlmepriv->to_roaming--; /* this stadel_event is caused by roaming, decrease to_roaming */
1305 else if (pmlmepriv->to_roaming == 0)
1306 pmlmepriv->to_roaming = adapter->registrypriv.max_roaming_times;
1307
1308 if (*((unsigned short *)(pstadel->rsvd)) != WLAN_REASON_EXPIRATION_CHK)
1309 pmlmepriv->to_roaming = 0; /* don't roam */
1310
1311 rtw_free_uc_swdec_pending_queue(adapter);
1312
1313 rtw_free_assoc_resources(adapter);
1314 rtw_indicate_disconnect(adapter);
1315 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1316 /* remove the network entry in scanned_queue */
1317 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
1318 if (pwlan) {
1319 pwlan->fixed = false;
1320 rtw_free_network_nolock(pmlmepriv, pwlan);
1321 }
1322 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1323 _rtw_roaming(adapter, tgt_network);
1324 }
1325 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
1326 check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1327 spin_lock_bh(&(pstapriv->sta_hash_lock));
1328 rtw_free_stainfo(adapter, psta);
1329 spin_unlock_bh(&pstapriv->sta_hash_lock);
1330
1331 if (adapter->stapriv.asoc_sta_count == 1) { /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
1332 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1333 /* free old ibss network */
1334 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
1335 if (pwlan) {
1336 pwlan->fixed = false;
1337 rtw_free_network_nolock(pmlmepriv, pwlan);
1338 }
1339 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1340 /* re-create ibss */
1341 pdev_network = &(adapter->registrypriv.dev_network);
1342 pibss = adapter->registrypriv.dev_network.MacAddress;
1343
1344 memcpy(pdev_network, &tgt_network->network, get_wlan_bssid_ex_sz(&tgt_network->network));
1345
1346 memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
1347
1348 rtw_update_registrypriv_dev_network(adapter);
1349
1350 rtw_generate_random_ibss(pibss);
1351
1352 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1353 set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
1354 _clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
1355 }
1356
1357 if (rtw_createbss_cmd(adapter) != _SUCCESS)
1358 RT_TRACE(_module_rtl871x_ioctl_set_c_, _drv_err_, ("***Error=>stadel_event_callback: rtw_createbss_cmd status FAIL***\n "));
1359 }
1360 }
1361 spin_unlock_bh(&pmlmepriv->lock);
1362 }
1363
rtw_cpwm_event_callback(struct adapter * padapter,u8 * pbuf)1364 void rtw_cpwm_event_callback(struct adapter *padapter, u8 *pbuf)
1365 {
1366 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_cpwm_event_callback !!!\n"));
1367 }
1368
1369 /*
1370 * _rtw_join_timeout_handler - Timeout/faliure handler for CMD JoinBss
1371 * @adapter: pointer to struct adapter structure
1372 */
_rtw_join_timeout_handler(unsigned long data)1373 void _rtw_join_timeout_handler (unsigned long data)
1374 {
1375 struct adapter *adapter = (struct adapter *)data;
1376 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1377 int do_join_r;
1378
1379 DBG_88E("%s, fw_state=%x\n", __func__, get_fwstate(pmlmepriv));
1380
1381 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1382 return;
1383
1384
1385 spin_lock_bh(&pmlmepriv->lock);
1386
1387 if (pmlmepriv->to_roaming > 0) { /* join timeout caused by roaming */
1388 while (1) {
1389 pmlmepriv->to_roaming--;
1390 if (pmlmepriv->to_roaming != 0) { /* try another , */
1391 DBG_88E("%s try another roaming\n", __func__);
1392 do_join_r = rtw_do_join(adapter);
1393 if (_SUCCESS != do_join_r) {
1394 DBG_88E("%s roaming do_join return %d\n", __func__, do_join_r);
1395 continue;
1396 }
1397 break;
1398 } else {
1399 DBG_88E("%s We've try roaming but fail\n", __func__);
1400 rtw_indicate_disconnect(adapter);
1401 break;
1402 }
1403 }
1404 } else {
1405 rtw_indicate_disconnect(adapter);
1406 free_scanqueue(pmlmepriv);/* */
1407 }
1408 spin_unlock_bh(&pmlmepriv->lock);
1409 }
1410
1411 /*
1412 * rtw_scan_timeout_handler - Timeout/Faliure handler for CMD SiteSurvey
1413 * @adapter: pointer to struct adapter structure
1414 */
rtw_scan_timeout_handler(unsigned long data)1415 void rtw_scan_timeout_handler (unsigned long data)
1416 {
1417 struct adapter *adapter = (struct adapter *)data;
1418 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1419
1420 DBG_88E(FUNC_ADPT_FMT" fw_state=%x\n", FUNC_ADPT_ARG(adapter), get_fwstate(pmlmepriv));
1421 spin_lock_bh(&pmlmepriv->lock);
1422 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
1423 spin_unlock_bh(&pmlmepriv->lock);
1424 rtw_indicate_scan_done(adapter, true);
1425 }
1426
rtw_auto_scan_handler(struct adapter * padapter)1427 static void rtw_auto_scan_handler(struct adapter *padapter)
1428 {
1429 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1430
1431 /* auto site survey per 60sec */
1432 if (pmlmepriv->scan_interval > 0) {
1433 pmlmepriv->scan_interval--;
1434 if (pmlmepriv->scan_interval == 0) {
1435 DBG_88E("%s\n", __func__);
1436 rtw_set_802_11_bssid_list_scan(padapter, NULL, 0);
1437 pmlmepriv->scan_interval = SCAN_INTERVAL;/* 30*2 sec = 60sec */
1438 }
1439 }
1440 }
1441
rtw_dynamic_check_timer_handlder(unsigned long data)1442 void rtw_dynamic_check_timer_handlder(unsigned long data)
1443 {
1444 struct adapter *adapter = (struct adapter *)data;
1445 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1446
1447 if (!adapter)
1448 return;
1449 if (!adapter->hw_init_completed)
1450 goto exit;
1451 if ((adapter->bDriverStopped) || (adapter->bSurpriseRemoved))
1452 goto exit;
1453 if (adapter->net_closed)
1454 goto exit;
1455 rtw_dynamic_chk_wk_cmd(adapter);
1456
1457 if (pregistrypriv->wifi_spec == 1) {
1458 /* auto site survey */
1459 rtw_auto_scan_handler(adapter);
1460 }
1461 exit:
1462 mod_timer(&adapter->mlmepriv.dynamic_chk_timer,
1463 jiffies + msecs_to_jiffies(2000));
1464 }
1465
1466 #define RTW_SCAN_RESULT_EXPIRE 2000
1467
1468 /*
1469 * Select a new join candidate from the original @param candidate and @param competitor
1470 * @return true: candidate is updated
1471 * @return false: candidate is not updated
1472 */
rtw_check_join_candidate(struct mlme_priv * pmlmepriv,struct wlan_network ** candidate,struct wlan_network * competitor)1473 static int rtw_check_join_candidate(struct mlme_priv *pmlmepriv
1474 , struct wlan_network **candidate, struct wlan_network *competitor)
1475 {
1476 int updated = false;
1477 struct adapter *adapter = container_of(pmlmepriv, struct adapter, mlmepriv);
1478
1479
1480 /* check bssid, if needed */
1481 if (pmlmepriv->assoc_by_bssid) {
1482 if (memcmp(competitor->network.MacAddress, pmlmepriv->assoc_bssid, ETH_ALEN))
1483 goto exit;
1484 }
1485
1486 /* check ssid, if needed */
1487 if (pmlmepriv->assoc_ssid.SsidLength) {
1488 if (competitor->network.Ssid.SsidLength != pmlmepriv->assoc_ssid.SsidLength ||
1489 !memcmp(competitor->network.Ssid.Ssid, pmlmepriv->assoc_ssid.Ssid, pmlmepriv->assoc_ssid.SsidLength) == false)
1490 goto exit;
1491 }
1492
1493 if (rtw_is_desired_network(adapter, competitor) == false)
1494 goto exit;
1495
1496 if (pmlmepriv->to_roaming) {
1497 if (rtw_get_passing_time_ms((u32)competitor->last_scanned) >= RTW_SCAN_RESULT_EXPIRE ||
1498 is_same_ess(&competitor->network, &pmlmepriv->cur_network.network) == false)
1499 goto exit;
1500 }
1501
1502 if (*candidate == NULL || (*candidate)->network.Rssi < competitor->network.Rssi) {
1503 *candidate = competitor;
1504 updated = true;
1505 }
1506 if (updated) {
1507 DBG_88E("[by_bssid:%u][assoc_ssid:%s]new candidate: %s(%pM rssi:%d\n",
1508 pmlmepriv->assoc_by_bssid,
1509 pmlmepriv->assoc_ssid.Ssid,
1510 (*candidate)->network.Ssid.Ssid,
1511 (*candidate)->network.MacAddress,
1512 (int)(*candidate)->network.Rssi);
1513 DBG_88E("[to_roaming:%u]\n", pmlmepriv->to_roaming);
1514 }
1515
1516 exit:
1517 return updated;
1518 }
1519
1520 /*
1521 Calling context:
1522 The caller of the sub-routine will be in critical section...
1523 The caller must hold the following spinlock
1524 pmlmepriv->lock
1525 */
1526
rtw_select_and_join_from_scanned_queue(struct mlme_priv * pmlmepriv)1527 int rtw_select_and_join_from_scanned_queue(struct mlme_priv *pmlmepriv)
1528 {
1529 int ret;
1530 struct list_head *phead;
1531 struct adapter *adapter;
1532 struct __queue *queue = &(pmlmepriv->scanned_queue);
1533 struct wlan_network *pnetwork = NULL;
1534 struct wlan_network *candidate = NULL;
1535 u8 supp_ant_div = false;
1536
1537 spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
1538 phead = get_list_head(queue);
1539 adapter = (struct adapter *)pmlmepriv->nic_hdl;
1540 pmlmepriv->pscanned = phead->next;
1541 while (phead != pmlmepriv->pscanned) {
1542 pnetwork = container_of(pmlmepriv->pscanned, struct wlan_network, list);
1543 if (pnetwork == NULL) {
1544 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s return _FAIL:(pnetwork==NULL)\n", __func__));
1545 ret = _FAIL;
1546 goto exit;
1547 }
1548 pmlmepriv->pscanned = pmlmepriv->pscanned->next;
1549 rtw_check_join_candidate(pmlmepriv, &candidate, pnetwork);
1550 }
1551 if (candidate == NULL) {
1552 DBG_88E("%s: return _FAIL(candidate==NULL)\n", __func__);
1553 ret = _FAIL;
1554 goto exit;
1555 } else {
1556 DBG_88E("%s: candidate: %s(%pM ch:%u)\n", __func__,
1557 candidate->network.Ssid.Ssid, candidate->network.MacAddress,
1558 candidate->network.Configuration.DSConfig);
1559 }
1560
1561
1562 /* check for situation of _FW_LINKED */
1563 if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
1564 DBG_88E("%s: _FW_LINKED while ask_for_joinbss!!!\n", __func__);
1565
1566 rtw_disassoc_cmd(adapter, 0, true);
1567 rtw_indicate_disconnect(adapter);
1568 rtw_free_assoc_resources_locked(adapter);
1569 }
1570
1571 rtw_hal_get_def_var(adapter, HAL_DEF_IS_SUPPORT_ANT_DIV, &(supp_ant_div));
1572 if (supp_ant_div) {
1573 u8 cur_ant;
1574 rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(cur_ant));
1575 DBG_88E("#### Opt_Ant_(%s), cur_Ant(%s)\n",
1576 (2 == candidate->network.PhyInfo.Optimum_antenna) ? "A" : "B",
1577 (2 == cur_ant) ? "A" : "B"
1578 );
1579 }
1580
1581 ret = rtw_joinbss_cmd(adapter, candidate);
1582
1583 exit:
1584 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1585 return ret;
1586 }
1587
rtw_set_auth(struct adapter * adapter,struct security_priv * psecuritypriv)1588 int rtw_set_auth(struct adapter *adapter, struct security_priv *psecuritypriv)
1589 {
1590 struct cmd_obj *pcmd;
1591 struct setauth_parm *psetauthparm;
1592 struct cmd_priv *pcmdpriv = &(adapter->cmdpriv);
1593 int res = _SUCCESS;
1594
1595 pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
1596 if (pcmd == NULL) {
1597 res = _FAIL; /* try again */
1598 goto exit;
1599 }
1600
1601 psetauthparm = kzalloc(sizeof(struct setauth_parm), GFP_KERNEL);
1602 if (psetauthparm == NULL) {
1603 kfree(pcmd);
1604 res = _FAIL;
1605 goto exit;
1606 }
1607 memset(psetauthparm, 0, sizeof(struct setauth_parm));
1608 psetauthparm->mode = (unsigned char)psecuritypriv->dot11AuthAlgrthm;
1609 pcmd->cmdcode = _SetAuth_CMD_;
1610 pcmd->parmbuf = (unsigned char *)psetauthparm;
1611 pcmd->cmdsz = (sizeof(struct setauth_parm));
1612 pcmd->rsp = NULL;
1613 pcmd->rspsz = 0;
1614 INIT_LIST_HEAD(&pcmd->list);
1615 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1616 ("after enqueue set_auth_cmd, auth_mode=%x\n",
1617 psecuritypriv->dot11AuthAlgrthm));
1618 res = rtw_enqueue_cmd(pcmdpriv, pcmd);
1619 exit:
1620 return res;
1621 }
1622
rtw_set_key(struct adapter * adapter,struct security_priv * psecuritypriv,int keyid,u8 set_tx)1623 int rtw_set_key(struct adapter *adapter, struct security_priv *psecuritypriv, int keyid, u8 set_tx)
1624 {
1625 u8 keylen;
1626 struct cmd_obj *pcmd;
1627 struct setkey_parm *psetkeyparm;
1628 struct cmd_priv *pcmdpriv = &(adapter->cmdpriv);
1629 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1630 int res = _SUCCESS;
1631
1632 pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
1633 if (pcmd == NULL)
1634 return _FAIL; /* try again */
1635
1636 psetkeyparm = kzalloc(sizeof(struct setkey_parm), GFP_KERNEL);
1637 if (psetkeyparm == NULL) {
1638 res = _FAIL;
1639 goto err_free_cmd;
1640 }
1641
1642 memset(psetkeyparm, 0, sizeof(struct setkey_parm));
1643
1644 if (psecuritypriv->dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
1645 psetkeyparm->algorithm = (unsigned char)psecuritypriv->dot118021XGrpPrivacy;
1646 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1647 ("\n rtw_set_key: psetkeyparm->algorithm=(unsigned char)psecuritypriv->dot118021XGrpPrivacy=%d\n",
1648 psetkeyparm->algorithm));
1649 } else {
1650 psetkeyparm->algorithm = (u8)psecuritypriv->dot11PrivacyAlgrthm;
1651 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1652 ("\n rtw_set_key: psetkeyparm->algorithm=(u8)psecuritypriv->dot11PrivacyAlgrthm=%d\n",
1653 psetkeyparm->algorithm));
1654 }
1655 psetkeyparm->keyid = (u8)keyid;/* 0~3 */
1656 psetkeyparm->set_tx = set_tx;
1657 pmlmepriv->key_mask |= BIT(psetkeyparm->keyid);
1658 DBG_88E("==> rtw_set_key algorithm(%x), keyid(%x), key_mask(%x)\n",
1659 psetkeyparm->algorithm, psetkeyparm->keyid, pmlmepriv->key_mask);
1660 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1661 ("\n rtw_set_key: psetkeyparm->algorithm=%d psetkeyparm->keyid=(u8)keyid=%d\n",
1662 psetkeyparm->algorithm, keyid));
1663
1664 switch (psetkeyparm->algorithm) {
1665 case _WEP40_:
1666 keylen = 5;
1667 memcpy(&(psetkeyparm->key[0]), &(psecuritypriv->dot11DefKey[keyid].skey[0]), keylen);
1668 break;
1669 case _WEP104_:
1670 keylen = 13;
1671 memcpy(&(psetkeyparm->key[0]), &(psecuritypriv->dot11DefKey[keyid].skey[0]), keylen);
1672 break;
1673 case _TKIP_:
1674 keylen = 16;
1675 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
1676 psetkeyparm->grpkey = 1;
1677 break;
1678 case _AES_:
1679 keylen = 16;
1680 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
1681 psetkeyparm->grpkey = 1;
1682 break;
1683 default:
1684 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
1685 ("\n rtw_set_key:psecuritypriv->dot11PrivacyAlgrthm=%x (must be 1 or 2 or 4 or 5)\n",
1686 psecuritypriv->dot11PrivacyAlgrthm));
1687 res = _FAIL;
1688 goto err_free_parm;
1689 }
1690 pcmd->cmdcode = _SetKey_CMD_;
1691 pcmd->parmbuf = (u8 *)psetkeyparm;
1692 pcmd->cmdsz = (sizeof(struct setkey_parm));
1693 pcmd->rsp = NULL;
1694 pcmd->rspsz = 0;
1695 INIT_LIST_HEAD(&pcmd->list);
1696 res = rtw_enqueue_cmd(pcmdpriv, pcmd);
1697 return res;
1698
1699 err_free_parm:
1700 kfree(psetkeyparm);
1701 err_free_cmd:
1702 kfree(pcmd);
1703 return res;
1704 }
1705
1706 /* 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)1707 int rtw_restruct_wmm_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len, uint initial_out_len)
1708 {
1709 unsigned int ielength = 0;
1710 unsigned int i, j;
1711
1712 /* i = 12; after the fixed IE */
1713 for (i = 12; i < in_len; i += (in_ie[i + 1] + 2) /* to the next IE element */) {
1714 ielength = initial_out_len;
1715
1716 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) {
1717 /* WMM element ID and OUI */
1718 /* Append WMM IE to the last index of out_ie */
1719
1720 for (j = i; j < i + 9; j++) {
1721 out_ie[ielength] = in_ie[j];
1722 ielength++;
1723 }
1724 out_ie[initial_out_len + 1] = 0x07;
1725 out_ie[initial_out_len + 6] = 0x00;
1726 out_ie[initial_out_len + 8] = 0x00;
1727 break;
1728 }
1729 }
1730 return ielength;
1731 }
1732
1733 /*
1734 * Ported from 8185: IsInPreAuthKeyList().
1735 * (Renamed from SecIsInPreAuthKeyList(), 2006-10-13.)
1736 * Added by Annie, 2006-05-07.
1737 * Search by BSSID,
1738 * Return Value:
1739 * -1 :if there is no pre-auth key in the table
1740 * >= 0 :if there is pre-auth key, and return the entry id
1741 */
SecIsInPMKIDList(struct adapter * Adapter,u8 * bssid)1742 static int SecIsInPMKIDList(struct adapter *Adapter, u8 *bssid)
1743 {
1744 struct security_priv *psecuritypriv = &Adapter->securitypriv;
1745 int i = 0;
1746
1747 do {
1748 if ((psecuritypriv->PMKIDList[i].bUsed) &&
1749 (!memcmp(psecuritypriv->PMKIDList[i].Bssid, bssid, ETH_ALEN))) {
1750 break;
1751 } else {
1752 i++;
1753 /* continue; */
1754 }
1755
1756 } while (i < NUM_PMKID_CACHE);
1757
1758 if (i == NUM_PMKID_CACHE)
1759 i = -1;/* Could not find. */
1760
1761 return i;
1762 }
1763
1764 /* */
1765 /* Check the RSN IE length */
1766 /* If the RSN IE length <= 20, the RSN IE didn't include the PMKID information */
1767 /* 0-11th element in the array are the fixed IE */
1768 /* 12th element in the array is the IE */
1769 /* 13th element in the array is the IE length */
1770 /* */
1771
rtw_append_pmkid(struct adapter * Adapter,int iEntry,u8 * ie,uint ie_len)1772 static int rtw_append_pmkid(struct adapter *Adapter, int iEntry, u8 *ie, uint ie_len)
1773 {
1774 struct security_priv *psecuritypriv = &Adapter->securitypriv;
1775
1776 if (ie[13] <= 20) {
1777 /* The RSN IE didn't include the PMK ID, append the PMK information */
1778 ie[ie_len] = 1;
1779 ie_len++;
1780 ie[ie_len] = 0; /* PMKID count = 0x0100 */
1781 ie_len++;
1782 memcpy(&ie[ie_len], &psecuritypriv->PMKIDList[iEntry].PMKID, 16);
1783
1784 ie_len += 16;
1785 ie[13] += 18;/* PMKID length = 2+16 */
1786 }
1787 return ie_len;
1788 }
1789
rtw_restruct_sec_ie(struct adapter * adapter,u8 * in_ie,u8 * out_ie,uint in_len)1790 int rtw_restruct_sec_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len)
1791 {
1792 u8 authmode;
1793 uint ielength;
1794 int iEntry;
1795
1796 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1797 struct security_priv *psecuritypriv = &adapter->securitypriv;
1798 uint ndisauthmode = psecuritypriv->ndisauthtype;
1799 uint ndissecuritytype = psecuritypriv->ndisencryptstatus;
1800
1801 RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_,
1802 ("+rtw_restruct_sec_ie: ndisauthmode=%d ndissecuritytype=%d\n",
1803 ndisauthmode, ndissecuritytype));
1804
1805 /* copy fixed ie only */
1806 memcpy(out_ie, in_ie, 12);
1807 ielength = 12;
1808 if ((ndisauthmode == Ndis802_11AuthModeWPA) ||
1809 (ndisauthmode == Ndis802_11AuthModeWPAPSK))
1810 authmode = _WPA_IE_ID_;
1811 if ((ndisauthmode == Ndis802_11AuthModeWPA2) ||
1812 (ndisauthmode == Ndis802_11AuthModeWPA2PSK))
1813 authmode = _WPA2_IE_ID_;
1814
1815 if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
1816 memcpy(out_ie+ielength, psecuritypriv->wps_ie, psecuritypriv->wps_ie_len);
1817
1818 ielength += psecuritypriv->wps_ie_len;
1819 } else if ((authmode == _WPA_IE_ID_) || (authmode == _WPA2_IE_ID_)) {
1820 /* copy RSN or SSN */
1821 memcpy(&out_ie[ielength], &psecuritypriv->supplicant_ie[0], psecuritypriv->supplicant_ie[1]+2);
1822 ielength += psecuritypriv->supplicant_ie[1]+2;
1823 rtw_report_sec_ie(adapter, authmode, psecuritypriv->supplicant_ie);
1824 }
1825
1826 iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
1827 if (iEntry < 0) {
1828 return ielength;
1829 } else {
1830 if (authmode == _WPA2_IE_ID_)
1831 ielength = rtw_append_pmkid(adapter, iEntry, out_ie, ielength);
1832 }
1833 return ielength;
1834 }
1835
rtw_init_registrypriv_dev_network(struct adapter * adapter)1836 void rtw_init_registrypriv_dev_network(struct adapter *adapter)
1837 {
1838 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1839 struct eeprom_priv *peepriv = &adapter->eeprompriv;
1840 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1841 u8 *myhwaddr = myid(peepriv);
1842
1843 memcpy(pdev_network->MacAddress, myhwaddr, ETH_ALEN);
1844
1845 memcpy(&pdev_network->Ssid, &pregistrypriv->ssid, sizeof(struct ndis_802_11_ssid));
1846
1847 pdev_network->Configuration.Length = sizeof(struct ndis_802_11_config);
1848 pdev_network->Configuration.BeaconPeriod = 100;
1849 pdev_network->Configuration.FHConfig.Length = 0;
1850 pdev_network->Configuration.FHConfig.HopPattern = 0;
1851 pdev_network->Configuration.FHConfig.HopSet = 0;
1852 pdev_network->Configuration.FHConfig.DwellTime = 0;
1853 }
1854
rtw_update_registrypriv_dev_network(struct adapter * adapter)1855 void rtw_update_registrypriv_dev_network(struct adapter *adapter)
1856 {
1857 int sz = 0;
1858 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1859 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1860 struct security_priv *psecuritypriv = &adapter->securitypriv;
1861 struct wlan_network *cur_network = &adapter->mlmepriv.cur_network;
1862
1863 pdev_network->Privacy = (psecuritypriv->dot11PrivacyAlgrthm > 0 ? 1 : 0); /* adhoc no 802.1x */
1864
1865 pdev_network->Rssi = 0;
1866
1867 switch (pregistrypriv->wireless_mode) {
1868 case WIRELESS_11B:
1869 pdev_network->NetworkTypeInUse = (Ndis802_11DS);
1870 break;
1871 case WIRELESS_11G:
1872 case WIRELESS_11BG:
1873 case WIRELESS_11_24N:
1874 case WIRELESS_11G_24N:
1875 case WIRELESS_11BG_24N:
1876 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM24);
1877 break;
1878 case WIRELESS_11A:
1879 case WIRELESS_11A_5N:
1880 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM5);
1881 break;
1882 case WIRELESS_11ABGN:
1883 if (pregistrypriv->channel > 14)
1884 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM5);
1885 else
1886 pdev_network->NetworkTypeInUse = (Ndis802_11OFDM24);
1887 break;
1888 default:
1889 /* TODO */
1890 break;
1891 }
1892
1893 pdev_network->Configuration.DSConfig = (pregistrypriv->channel);
1894 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
1895 ("pregistrypriv->channel=%d, pdev_network->Configuration.DSConfig=0x%x\n",
1896 pregistrypriv->channel, pdev_network->Configuration.DSConfig));
1897
1898 if (cur_network->network.InfrastructureMode == Ndis802_11IBSS)
1899 pdev_network->Configuration.ATIMWindow = (0);
1900
1901 pdev_network->InfrastructureMode = (cur_network->network.InfrastructureMode);
1902
1903 /* 1. Supported rates */
1904 /* 2. IE */
1905
1906 sz = rtw_generate_ie(pregistrypriv);
1907 pdev_network->IELength = sz;
1908 pdev_network->Length = get_wlan_bssid_ex_sz((struct wlan_bssid_ex *)pdev_network);
1909
1910 /* notes: translate IELength & Length after assign the Length to cmdsz in createbss_cmd(); */
1911 /* pdev_network->IELength = cpu_to_le32(sz); */
1912 }
1913
rtw_get_encrypt_decrypt_from_registrypriv(struct adapter * adapter)1914 void rtw_get_encrypt_decrypt_from_registrypriv(struct adapter *adapter)
1915 {
1916 }
1917
1918 /* the function is at passive_level */
rtw_joinbss_reset(struct adapter * padapter)1919 void rtw_joinbss_reset(struct adapter *padapter)
1920 {
1921 u8 threshold;
1922 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1923 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1924
1925 /* todo: if you want to do something io/reg/hw setting before join_bss, please add code here */
1926 pmlmepriv->num_FortyMHzIntolerant = 0;
1927
1928 pmlmepriv->num_sta_no_ht = 0;
1929
1930 phtpriv->ampdu_enable = false;/* reset to disabled */
1931
1932 /* TH = 1 => means that invalidate usb rx aggregation */
1933 /* TH = 0 => means that validate usb rx aggregation, use init value. */
1934 if (phtpriv->ht_option) {
1935 if (padapter->registrypriv.wifi_spec == 1)
1936 threshold = 1;
1937 else
1938 threshold = 0;
1939 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
1940 } else {
1941 threshold = 1;
1942 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
1943 }
1944 }
1945
1946 /* the function is >= passive_level */
rtw_restructure_ht_ie(struct adapter * padapter,u8 * in_ie,u8 * out_ie,uint in_len,uint * pout_len)1947 unsigned int rtw_restructure_ht_ie(struct adapter *padapter, u8 *in_ie, u8 *out_ie, uint in_len, uint *pout_len)
1948 {
1949 u32 ielen, out_len;
1950 enum ht_cap_ampdu_factor max_rx_ampdu_factor;
1951 unsigned char *p;
1952 struct rtw_ieee80211_ht_cap ht_capie;
1953 unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
1954 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1955 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
1956 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1957 u32 rx_packet_offset, max_recvbuf_sz;
1958
1959
1960 phtpriv->ht_option = false;
1961
1962 p = rtw_get_ie(in_ie+12, _HT_CAPABILITY_IE_, &ielen, in_len-12);
1963
1964 if (p && ielen > 0) {
1965 if (pqospriv->qos_option == 0) {
1966 out_len = *pout_len;
1967 rtw_set_ie(out_ie+out_len, _VENDOR_SPECIFIC_IE_,
1968 _WMM_IE_Length_, WMM_IE, pout_len);
1969
1970 pqospriv->qos_option = 1;
1971 }
1972
1973 out_len = *pout_len;
1974
1975 memset(&ht_capie, 0, sizeof(struct rtw_ieee80211_ht_cap));
1976
1977 ht_capie.cap_info = IEEE80211_HT_CAP_SUP_WIDTH |
1978 IEEE80211_HT_CAP_SGI_20 |
1979 IEEE80211_HT_CAP_SGI_40 |
1980 IEEE80211_HT_CAP_TX_STBC |
1981 IEEE80211_HT_CAP_DSSSCCK40;
1982
1983 rtw_hal_get_def_var(padapter, HAL_DEF_RX_PACKET_OFFSET, &rx_packet_offset);
1984 rtw_hal_get_def_var(padapter, HAL_DEF_MAX_RECVBUF_SZ, &max_recvbuf_sz);
1985
1986 /*
1987 AMPDU_para [1:0]:Max AMPDU Len => 0:8k , 1:16k, 2:32k, 3:64k
1988 AMPDU_para [4:2]:Min MPDU Start Spacing
1989 */
1990
1991 rtw_hal_get_def_var(padapter, HW_VAR_MAX_RX_AMPDU_FACTOR, &max_rx_ampdu_factor);
1992 ht_capie.ampdu_params_info = (max_rx_ampdu_factor&0x03);
1993
1994 if (padapter->securitypriv.dot11PrivacyAlgrthm == _AES_)
1995 ht_capie.ampdu_params_info |= (IEEE80211_HT_CAP_AMPDU_DENSITY&(0x07<<2));
1996 else
1997 ht_capie.ampdu_params_info |= (IEEE80211_HT_CAP_AMPDU_DENSITY&0x00);
1998
1999
2000 rtw_set_ie(out_ie+out_len, _HT_CAPABILITY_IE_,
2001 sizeof(struct rtw_ieee80211_ht_cap), (unsigned char *)&ht_capie, pout_len);
2002
2003 phtpriv->ht_option = true;
2004
2005 p = rtw_get_ie(in_ie+12, _HT_ADD_INFO_IE_, &ielen, in_len-12);
2006 if (p && (ielen == sizeof(struct ieee80211_ht_addt_info))) {
2007 out_len = *pout_len;
2008 rtw_set_ie(out_ie+out_len, _HT_ADD_INFO_IE_, ielen, p+2, pout_len);
2009 }
2010 }
2011 return phtpriv->ht_option;
2012 }
2013
2014 /* the function is > passive_level (in critical_section) */
rtw_update_ht_cap(struct adapter * padapter,u8 * pie,uint ie_len)2015 void rtw_update_ht_cap(struct adapter *padapter, u8 *pie, uint ie_len)
2016 {
2017 u8 *p, max_ampdu_sz;
2018 int len;
2019 struct rtw_ieee80211_ht_cap *pht_capie;
2020 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2021 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
2022 struct registry_priv *pregistrypriv = &padapter->registrypriv;
2023 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
2024 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
2025
2026 if (!phtpriv->ht_option)
2027 return;
2028
2029 if ((!pmlmeinfo->HT_info_enable) || (!pmlmeinfo->HT_caps_enable))
2030 return;
2031
2032 DBG_88E("+rtw_update_ht_cap()\n");
2033
2034 /* maybe needs check if ap supports rx ampdu. */
2035 if ((!phtpriv->ampdu_enable) && (pregistrypriv->ampdu_enable == 1)) {
2036 if (pregistrypriv->wifi_spec == 1)
2037 phtpriv->ampdu_enable = false;
2038 else
2039 phtpriv->ampdu_enable = true;
2040 } else if (pregistrypriv->ampdu_enable == 2) {
2041 phtpriv->ampdu_enable = true;
2042 }
2043
2044
2045 /* check Max Rx A-MPDU Size */
2046 len = 0;
2047 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));
2048 if (p && len > 0) {
2049 pht_capie = (struct rtw_ieee80211_ht_cap *)(p+2);
2050 max_ampdu_sz = pht_capie->ampdu_params_info & IEEE80211_HT_CAP_AMPDU_FACTOR;
2051 max_ampdu_sz = 1 << (max_ampdu_sz+3); /* max_ampdu_sz (kbytes); */
2052 phtpriv->rx_ampdu_maxlen = max_ampdu_sz;
2053 }
2054 len = 0;
2055 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));
2056
2057 /* update cur_bwmode & cur_ch_offset */
2058 if ((pregistrypriv->cbw40_enable) &&
2059 (le16_to_cpu(pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info) & BIT(1)) &&
2060 (pmlmeinfo->HT_info.infos[0] & BIT(2))) {
2061 int i;
2062 u8 rf_type;
2063
2064 padapter->HalFunc.GetHwRegHandler(padapter, HW_VAR_RF_TYPE, (u8 *)(&rf_type));
2065
2066 /* update the MCS rates */
2067 for (i = 0; i < 16; i++) {
2068 if ((rf_type == RF_1T1R) || (rf_type == RF_1T2R))
2069 pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= MCS_rate_1R[i];
2070 else
2071 pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= MCS_rate_2R[i];
2072 }
2073 /* switch to the 40M Hz mode according to the AP */
2074 pmlmeext->cur_bwmode = HT_CHANNEL_WIDTH_40;
2075 switch ((pmlmeinfo->HT_info.infos[0] & 0x3)) {
2076 case HT_EXTCHNL_OFFSET_UPPER:
2077 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_LOWER;
2078 break;
2079 case HT_EXTCHNL_OFFSET_LOWER:
2080 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_UPPER;
2081 break;
2082 default:
2083 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
2084 break;
2085 }
2086 }
2087
2088 /* Config SM Power Save setting */
2089 pmlmeinfo->SM_PS = (le16_to_cpu(pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info) & 0x0C) >> 2;
2090 if (pmlmeinfo->SM_PS == WLAN_HT_CAP_SM_PS_STATIC)
2091 DBG_88E("%s(): WLAN_HT_CAP_SM_PS_STATIC\n", __func__);
2092
2093 /* Config current HT Protection mode. */
2094 pmlmeinfo->HT_protection = pmlmeinfo->HT_info.infos[1] & 0x3;
2095 }
2096
rtw_issue_addbareq_cmd(struct adapter * padapter,struct xmit_frame * pxmitframe)2097 void rtw_issue_addbareq_cmd(struct adapter *padapter, struct xmit_frame *pxmitframe)
2098 {
2099 u8 issued;
2100 int priority;
2101 struct sta_info *psta = NULL;
2102 struct ht_priv *phtpriv;
2103 struct pkt_attrib *pattrib = &pxmitframe->attrib;
2104 s32 bmcst = IS_MCAST(pattrib->ra);
2105
2106 if (bmcst || (padapter->mlmepriv.LinkDetectInfo.NumTxOkInPeriod < 100))
2107 return;
2108
2109 priority = pattrib->priority;
2110
2111 if (pattrib->psta)
2112 psta = pattrib->psta;
2113 else
2114 psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
2115
2116 if (psta == NULL)
2117 return;
2118
2119 phtpriv = &psta->htpriv;
2120
2121 if ((phtpriv->ht_option) && (phtpriv->ampdu_enable)) {
2122 issued = (phtpriv->agg_enable_bitmap>>priority)&0x1;
2123 issued |= (phtpriv->candidate_tid_bitmap>>priority)&0x1;
2124
2125 if (0 == issued) {
2126 DBG_88E("rtw_issue_addbareq_cmd, p=%d\n", priority);
2127 psta->htpriv.candidate_tid_bitmap |= BIT((u8)priority);
2128 rtw_addbareq_cmd(padapter, (u8)priority, pattrib->ra);
2129 }
2130 }
2131 }
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
2137 spin_lock_bh(&pmlmepriv->lock);
2138 _rtw_roaming(padapter, tgt_network);
2139 spin_unlock_bh(&pmlmepriv->lock);
2140 }
_rtw_roaming(struct adapter * padapter,struct wlan_network * tgt_network)2141 void _rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
2142 {
2143 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2144 int do_join_r;
2145
2146 struct wlan_network *pnetwork;
2147
2148 if (tgt_network != NULL)
2149 pnetwork = tgt_network;
2150 else
2151 pnetwork = &pmlmepriv->cur_network;
2152
2153 if (0 < pmlmepriv->to_roaming) {
2154 DBG_88E("roaming from %s(%pM length:%d\n",
2155 pnetwork->network.Ssid.Ssid, pnetwork->network.MacAddress,
2156 pnetwork->network.Ssid.SsidLength);
2157 memcpy(&pmlmepriv->assoc_ssid, &pnetwork->network.Ssid, sizeof(struct ndis_802_11_ssid));
2158
2159 pmlmepriv->assoc_by_bssid = false;
2160
2161 while (1) {
2162 do_join_r = rtw_do_join(padapter);
2163 if (_SUCCESS == do_join_r) {
2164 break;
2165 } else {
2166 DBG_88E("roaming do_join return %d\n", do_join_r);
2167 pmlmepriv->to_roaming--;
2168
2169 if (0 < pmlmepriv->to_roaming) {
2170 continue;
2171 } else {
2172 DBG_88E("%s(%d) -to roaming fail, indicate_disconnect\n", __func__, __LINE__);
2173 rtw_indicate_disconnect(padapter);
2174 break;
2175 }
2176 }
2177 }
2178 }
2179 }
2180