1 // SPDX-License-Identifier: GPL-2.0
2 /******************************************************************************
3 *
4 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
5 *
6 ******************************************************************************/
7 #include <linux/etherdevice.h>
8 #include <drv_types.h>
9 #include <hal_btcoex.h>
10 #include <linux/jiffies.h>
11
_dynamic_check_timer_handler(struct timer_list * t)12 static void _dynamic_check_timer_handler(struct timer_list *t)
13 {
14 struct adapter *adapter =
15 timer_container_of(adapter, t, mlmepriv.dynamic_chk_timer);
16
17 rtw_dynamic_check_timer_handler(adapter);
18
19 _set_timer(&adapter->mlmepriv.dynamic_chk_timer, 2000);
20 }
21
_rtw_set_scan_deny_timer_hdl(struct timer_list * t)22 static void _rtw_set_scan_deny_timer_hdl(struct timer_list *t)
23 {
24 struct adapter *adapter =
25 timer_container_of(adapter, t, mlmepriv.set_scan_deny_timer);
26
27 rtw_clear_scan_deny(adapter);
28 }
29
rtw_init_mlme_timer(struct adapter * padapter)30 static void rtw_init_mlme_timer(struct adapter *padapter)
31 {
32 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
33
34 timer_setup(&pmlmepriv->assoc_timer, _rtw_join_timeout_handler, 0);
35 timer_setup(&pmlmepriv->scan_to_timer, rtw_scan_timeout_handler, 0);
36 timer_setup(&pmlmepriv->dynamic_chk_timer,
37 _dynamic_check_timer_handler, 0);
38 timer_setup(&pmlmepriv->set_scan_deny_timer,
39 _rtw_set_scan_deny_timer_hdl, 0);
40 }
41
rtw_init_mlme_priv(struct adapter * padapter)42 int rtw_init_mlme_priv(struct adapter *padapter)
43 {
44 int i;
45 u8 *pbuf;
46 struct wlan_network *pnetwork;
47 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
48 int res = _SUCCESS;
49
50 pmlmepriv->nic_hdl = (u8 *)padapter;
51
52 pmlmepriv->pscanned = NULL;
53 pmlmepriv->fw_state = WIFI_STATION_STATE; /* Must sync with rtw_wdev_alloc() */
54 pmlmepriv->cur_network.network.infrastructure_mode = Ndis802_11AutoUnknown;
55 pmlmepriv->scan_mode = SCAN_ACTIVE;/* 1: active, 0: passive. Maybe someday we should rename this varable to "active_mode" (Jeff) */
56
57 spin_lock_init(&pmlmepriv->lock);
58 INIT_LIST_HEAD(&pmlmepriv->free_bss_pool.queue);
59 spin_lock_init(&pmlmepriv->free_bss_pool.lock);
60 INIT_LIST_HEAD(&pmlmepriv->scanned_queue.queue);
61 spin_lock_init(&pmlmepriv->scanned_queue.lock);
62
63 memset(&pmlmepriv->assoc_ssid, 0, sizeof(struct ndis_802_11_ssid));
64
65 pbuf = vzalloc(array_size(MAX_BSS_CNT, sizeof(struct wlan_network)));
66
67 if (!pbuf) {
68 res = _FAIL;
69 goto exit;
70 }
71 pmlmepriv->free_bss_buf = pbuf;
72
73 pnetwork = (struct wlan_network *)pbuf;
74
75 for (i = 0; i < MAX_BSS_CNT; i++) {
76 INIT_LIST_HEAD(&pnetwork->list);
77
78 list_add_tail(&pnetwork->list, &pmlmepriv->free_bss_pool.queue);
79
80 pnetwork++;
81 }
82
83 /* allocate DMA-able/Non-Page memory for cmd_buf and rsp_buf */
84
85 rtw_clear_scan_deny(padapter);
86
87 #define RTW_ROAM_SCAN_RESULT_EXP_MS 5000
88 #define RTW_ROAM_RSSI_DIFF_TH 10
89 #define RTW_ROAM_SCAN_INTERVAL_MS 10000
90
91 pmlmepriv->roam_flags = 0
92 | RTW_ROAM_ON_EXPIRED
93 | RTW_ROAM_ON_RESUME
94 ;
95
96 pmlmepriv->roam_scanr_exp_ms = RTW_ROAM_SCAN_RESULT_EXP_MS;
97 pmlmepriv->roam_rssi_diff_th = RTW_ROAM_RSSI_DIFF_TH;
98 pmlmepriv->roam_scan_int_ms = RTW_ROAM_SCAN_INTERVAL_MS;
99
100 rtw_init_mlme_timer(padapter);
101
102 exit:
103
104 return res;
105 }
106
rtw_free_mlme_ie_data(u8 ** ppie,u32 * plen)107 static void rtw_free_mlme_ie_data(u8 **ppie, u32 *plen)
108 {
109 if (*ppie) {
110 kfree(*ppie);
111 *plen = 0;
112 *ppie = NULL;
113 }
114 }
115
rtw_free_mlme_priv_ie_data(struct mlme_priv * pmlmepriv)116 void rtw_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv)
117 {
118 rtw_buf_free(&pmlmepriv->assoc_req, &pmlmepriv->assoc_req_len);
119 rtw_buf_free(&pmlmepriv->assoc_rsp, &pmlmepriv->assoc_rsp_len);
120 rtw_free_mlme_ie_data(&pmlmepriv->wps_beacon_ie, &pmlmepriv->wps_beacon_ie_len);
121 rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_req_ie, &pmlmepriv->wps_probe_req_ie_len);
122 rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_resp_ie, &pmlmepriv->wps_probe_resp_ie_len);
123 rtw_free_mlme_ie_data(&pmlmepriv->wps_assoc_resp_ie, &pmlmepriv->wps_assoc_resp_ie_len);
124
125 rtw_free_mlme_ie_data(&pmlmepriv->p2p_beacon_ie, &pmlmepriv->p2p_beacon_ie_len);
126 rtw_free_mlme_ie_data(&pmlmepriv->p2p_probe_req_ie, &pmlmepriv->p2p_probe_req_ie_len);
127 rtw_free_mlme_ie_data(&pmlmepriv->p2p_probe_resp_ie, &pmlmepriv->p2p_probe_resp_ie_len);
128 rtw_free_mlme_ie_data(&pmlmepriv->p2p_go_probe_resp_ie, &pmlmepriv->p2p_go_probe_resp_ie_len);
129 rtw_free_mlme_ie_data(&pmlmepriv->p2p_assoc_req_ie, &pmlmepriv->p2p_assoc_req_ie_len);
130 }
131
_rtw_free_mlme_priv(struct mlme_priv * pmlmepriv)132 void _rtw_free_mlme_priv(struct mlme_priv *pmlmepriv)
133 {
134 if (pmlmepriv) {
135 rtw_free_mlme_priv_ie_data(pmlmepriv);
136 vfree(pmlmepriv->free_bss_buf);
137 }
138 }
139
rtw_alloc_network(struct mlme_priv * pmlmepriv)140 struct wlan_network *rtw_alloc_network(struct mlme_priv *pmlmepriv)
141 {
142 struct wlan_network *pnetwork;
143 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
144 struct list_head *plist = NULL;
145
146 spin_lock_bh(&free_queue->lock);
147
148 if (list_empty(&free_queue->queue)) {
149 pnetwork = NULL;
150 goto exit;
151 }
152 plist = get_next(&free_queue->queue);
153
154 pnetwork = container_of(plist, struct wlan_network, list);
155
156 list_del_init(&pnetwork->list);
157
158 pnetwork->network_type = 0;
159 pnetwork->fixed = false;
160 pnetwork->last_scanned = jiffies;
161 pnetwork->aid = 0;
162 pnetwork->join_res = 0;
163
164 exit:
165 spin_unlock_bh(&free_queue->lock);
166
167 return pnetwork;
168 }
169
_rtw_free_network(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork,u8 isfreeall)170 void _rtw_free_network(struct mlme_priv *pmlmepriv, struct wlan_network *pnetwork, u8 isfreeall)
171 {
172 unsigned int delta_time;
173 u32 lifetime = SCANQUEUE_LIFETIME;
174 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
175
176 if (!pnetwork)
177 return;
178
179 if (pnetwork->fixed)
180 return;
181
182 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
183 check_fwstate(pmlmepriv, WIFI_ADHOC_STATE))
184 lifetime = 1;
185
186 if (!isfreeall) {
187 delta_time = jiffies_to_msecs(jiffies - pnetwork->last_scanned);
188 if (delta_time < lifetime)/* unit:msec */
189 return;
190 }
191
192 spin_lock_bh(&free_queue->lock);
193
194 list_del_init(&pnetwork->list);
195
196 list_add_tail(&pnetwork->list, &free_queue->queue);
197
198 spin_unlock_bh(&free_queue->lock);
199 }
200
_rtw_free_network_nolock(struct mlme_priv * pmlmepriv,struct wlan_network * pnetwork)201 void _rtw_free_network_nolock(struct mlme_priv *pmlmepriv, struct wlan_network *pnetwork)
202 {
203 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
204
205 if (!pnetwork)
206 return;
207
208 if (pnetwork->fixed)
209 return;
210
211 list_del_init(&pnetwork->list);
212
213 list_add_tail(&pnetwork->list, get_list_head(free_queue));
214 }
215
216 /*
217 * return the wlan_network with the matching addr
218 *
219 * Shall be called under atomic context... to avoid possible racing condition...
220 */
_rtw_find_network(struct __queue * scanned_queue,u8 * addr)221 struct wlan_network *_rtw_find_network(struct __queue *scanned_queue, u8 *addr)
222 {
223 struct list_head *phead, *plist;
224 struct wlan_network *pnetwork = NULL;
225
226 if (is_zero_ether_addr(addr)) {
227 pnetwork = NULL;
228 goto exit;
229 }
230
231 phead = get_list_head(scanned_queue);
232 list_for_each(plist, phead) {
233 pnetwork = list_entry(plist, struct wlan_network, list);
234
235 if (!memcmp(addr, pnetwork->network.mac_address, ETH_ALEN))
236 break;
237 }
238
239 if (plist == phead)
240 pnetwork = NULL;
241
242 exit:
243 return pnetwork;
244 }
245
rtw_free_network_queue(struct adapter * padapter,u8 isfreeall)246 void rtw_free_network_queue(struct adapter *padapter, u8 isfreeall)
247 {
248 struct list_head *phead, *plist, *tmp;
249 struct wlan_network *pnetwork;
250 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
251 struct __queue *scanned_queue = &pmlmepriv->scanned_queue;
252
253 spin_lock_bh(&scanned_queue->lock);
254
255 phead = get_list_head(scanned_queue);
256 list_for_each_safe(plist, tmp, phead) {
257 pnetwork = list_entry(plist, struct wlan_network, list);
258
259 _rtw_free_network(pmlmepriv, pnetwork, isfreeall);
260 }
261
262 spin_unlock_bh(&scanned_queue->lock);
263 }
264
rtw_if_up(struct adapter * padapter)265 signed int rtw_if_up(struct adapter *padapter)
266 {
267 signed int res;
268
269 if (padapter->bDriverStopped || padapter->bSurpriseRemoved ||
270 !check_fwstate(&padapter->mlmepriv, _FW_LINKED))
271 res = false;
272 else
273 res = true;
274
275 return res;
276 }
277
rtw_generate_random_ibss(u8 * pibss)278 void rtw_generate_random_ibss(u8 *pibss)
279 {
280 unsigned long curtime = jiffies;
281
282 pibss[0] = 0x02; /* in ad-hoc mode bit1 must set to 1 */
283 pibss[1] = 0x11;
284 pibss[2] = 0x87;
285 pibss[3] = (u8)(curtime & 0xff) ;/* p[0]; */
286 pibss[4] = (u8)((curtime >> 8) & 0xff) ;/* p[1]; */
287 pibss[5] = (u8)((curtime >> 16) & 0xff) ;/* p[2]; */
288 }
289
rtw_get_capability_from_ie(u8 * ie)290 u8 *rtw_get_capability_from_ie(u8 *ie)
291 {
292 return ie + 8 + 2;
293 }
294
rtw_get_capability(struct wlan_bssid_ex * bss)295 u16 rtw_get_capability(struct wlan_bssid_ex *bss)
296 {
297 __le16 val;
298
299 memcpy((u8 *)&val, rtw_get_capability_from_ie(bss->ies), 2);
300
301 return le16_to_cpu(val);
302 }
303
rtw_get_beacon_interval_from_ie(u8 * ie)304 u8 *rtw_get_beacon_interval_from_ie(u8 *ie)
305 {
306 return ie + 8;
307 }
308
rtw_free_mlme_priv(struct mlme_priv * pmlmepriv)309 void rtw_free_mlme_priv(struct mlme_priv *pmlmepriv)
310 {
311 _rtw_free_mlme_priv(pmlmepriv);
312 }
313
314 void rtw_free_network_nolock(struct adapter *padapter, struct wlan_network *pnetwork);
rtw_free_network_nolock(struct adapter * padapter,struct wlan_network * pnetwork)315 void rtw_free_network_nolock(struct adapter *padapter, struct wlan_network *pnetwork)
316 {
317 _rtw_free_network_nolock(&padapter->mlmepriv, pnetwork);
318 rtw_cfg80211_unlink_bss(padapter, pnetwork);
319 }
320
321 /*
322 * return the wlan_network with the matching addr
323 *
324 * Shall be called under atomic context... to avoid possible racing condition...
325 */
rtw_find_network(struct __queue * scanned_queue,u8 * addr)326 struct wlan_network *rtw_find_network(struct __queue *scanned_queue, u8 *addr)
327 {
328 struct wlan_network *pnetwork = _rtw_find_network(scanned_queue, addr);
329
330 return pnetwork;
331 }
332
rtw_is_same_ibss(struct adapter * adapter,struct wlan_network * pnetwork)333 int rtw_is_same_ibss(struct adapter *adapter, struct wlan_network *pnetwork)
334 {
335 int ret = true;
336 struct security_priv *psecuritypriv = &adapter->securitypriv;
337
338 if ((psecuritypriv->dot11PrivacyAlgrthm != _NO_PRIVACY_) &&
339 (pnetwork->network.privacy == 0))
340 ret = false;
341 else if ((psecuritypriv->dot11PrivacyAlgrthm == _NO_PRIVACY_) &&
342 (pnetwork->network.privacy == 1))
343 ret = false;
344 else
345 ret = true;
346
347 return ret;
348 }
349
is_same_ess(struct wlan_bssid_ex * a,struct wlan_bssid_ex * b)350 inline int is_same_ess(struct wlan_bssid_ex *a, struct wlan_bssid_ex *b)
351 {
352 return (a->ssid.ssid_length == b->ssid.ssid_length)
353 && !memcmp(a->ssid.ssid, b->ssid.ssid, a->ssid.ssid_length);
354 }
355
is_same_network(struct wlan_bssid_ex * src,struct wlan_bssid_ex * dst,u8 feature)356 int is_same_network(struct wlan_bssid_ex *src, struct wlan_bssid_ex *dst, u8 feature)
357 {
358 u16 s_cap, d_cap;
359 __le16 tmps, tmpd;
360
361 if (rtw_bug_check(dst, src, &s_cap, &d_cap) == false)
362 return false;
363
364 memcpy((u8 *)&tmps, rtw_get_capability_from_ie(src->ies), 2);
365 memcpy((u8 *)&tmpd, rtw_get_capability_from_ie(dst->ies), 2);
366
367 s_cap = le16_to_cpu(tmps);
368 d_cap = le16_to_cpu(tmpd);
369
370 return (src->ssid.ssid_length == dst->ssid.ssid_length) &&
371 ((!memcmp(src->mac_address, dst->mac_address, ETH_ALEN))) &&
372 ((!memcmp(src->ssid.ssid, dst->ssid.ssid, src->ssid.ssid_length))) &&
373 ((s_cap & WLAN_CAPABILITY_IBSS) ==
374 (d_cap & WLAN_CAPABILITY_IBSS)) &&
375 ((s_cap & WLAN_CAPABILITY_ESS) ==
376 (d_cap & WLAN_CAPABILITY_ESS));
377 }
378
_rtw_find_same_network(struct __queue * scanned_queue,struct wlan_network * network)379 struct wlan_network *_rtw_find_same_network(struct __queue *scanned_queue, struct wlan_network *network)
380 {
381 struct list_head *phead, *plist;
382 struct wlan_network *found = NULL;
383
384 phead = get_list_head(scanned_queue);
385 list_for_each(plist, phead) {
386 found = list_entry(plist, struct wlan_network, list);
387
388 if (is_same_network(&network->network, &found->network, 0))
389 break;
390 }
391
392 if (plist == phead)
393 found = NULL;
394
395 return found;
396 }
397
rtw_get_oldest_wlan_network(struct __queue * scanned_queue)398 struct wlan_network *rtw_get_oldest_wlan_network(struct __queue *scanned_queue)
399 {
400 struct list_head *plist, *phead;
401
402 struct wlan_network *pwlan = NULL;
403 struct wlan_network *oldest = NULL;
404
405 phead = get_list_head(scanned_queue);
406
407 list_for_each(plist, phead) {
408 pwlan = list_entry(plist, struct wlan_network, list);
409
410 if (!pwlan->fixed) {
411 if (!oldest || time_after(oldest->last_scanned, pwlan->last_scanned))
412 oldest = pwlan;
413 }
414 }
415 return oldest;
416 }
417
update_network(struct wlan_bssid_ex * dst,struct wlan_bssid_ex * src,struct adapter * padapter,bool update_ie)418 void update_network(struct wlan_bssid_ex *dst, struct wlan_bssid_ex *src,
419 struct adapter *padapter, bool update_ie)
420 {
421 long rssi_ori = dst->rssi;
422
423 u8 sq_smp = src->phy_info.signal_quality;
424
425 u8 ss_final;
426 u8 sq_final;
427 long rssi_final;
428
429 /* The rule below is 1/5 for sample value, 4/5 for history value */
430 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) && is_same_network(&padapter->mlmepriv.cur_network.network, src, 0)) {
431 /* Take the recvpriv's value for the connected AP*/
432 ss_final = padapter->recvpriv.signal_strength;
433 sq_final = padapter->recvpriv.signal_qual;
434 /* the rssi value here is undecorated, and will be used for antenna diversity */
435 if (sq_smp != 101) /* from the right channel */
436 rssi_final = (src->rssi + dst->rssi * 4) / 5;
437 else
438 rssi_final = rssi_ori;
439 } else {
440 if (sq_smp != 101) { /* from the right channel */
441 ss_final = ((u32)(src->phy_info.signal_strength) + (u32)(dst->phy_info.signal_strength) * 4) / 5;
442 sq_final = ((u32)(src->phy_info.signal_quality) + (u32)(dst->phy_info.signal_quality) * 4) / 5;
443 rssi_final = (src->rssi + dst->rssi * 4) / 5;
444 } else {
445 /* bss info not receiving from the right channel, use the original RX signal infos */
446 ss_final = dst->phy_info.signal_strength;
447 sq_final = dst->phy_info.signal_quality;
448 rssi_final = dst->rssi;
449 }
450 }
451
452 if (update_ie) {
453 dst->reserved[0] = src->reserved[0];
454 dst->reserved[1] = src->reserved[1];
455 memcpy((u8 *)dst, (u8 *)src, get_wlan_bssid_ex_sz(src));
456 }
457
458 dst->phy_info.signal_strength = ss_final;
459 dst->phy_info.signal_quality = sq_final;
460 dst->rssi = rssi_final;
461 }
462
update_current_network(struct adapter * adapter,struct wlan_bssid_ex * pnetwork)463 static void update_current_network(struct adapter *adapter, struct wlan_bssid_ex *pnetwork)
464 {
465 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
466
467 rtw_bug_check(&pmlmepriv->cur_network.network,
468 &pmlmepriv->cur_network.network,
469 &pmlmepriv->cur_network.network,
470 &pmlmepriv->cur_network.network);
471
472 if (check_fwstate(pmlmepriv, _FW_LINKED) && (is_same_network(&pmlmepriv->cur_network.network, pnetwork, 0))) {
473 update_network(&pmlmepriv->cur_network.network, pnetwork, adapter, true);
474 rtw_update_protection(adapter, (pmlmepriv->cur_network.network.ies) + sizeof(struct ndis_802_11_fix_ie),
475 pmlmepriv->cur_network.network.ie_length);
476 }
477 }
478
479 /* Caller must hold pmlmepriv->lock first. */
rtw_update_scanned_network(struct adapter * adapter,struct wlan_bssid_ex * target)480 void rtw_update_scanned_network(struct adapter *adapter, struct wlan_bssid_ex *target)
481 {
482 struct list_head *plist, *phead;
483 u32 bssid_ex_sz;
484 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
485 struct __queue *queue = &pmlmepriv->scanned_queue;
486 struct wlan_network *pnetwork = NULL;
487 struct wlan_network *oldest = NULL;
488 int target_find = 0;
489 u8 feature = 0;
490
491 spin_lock_bh(&queue->lock);
492 phead = get_list_head(queue);
493 list_for_each(plist, phead) {
494 pnetwork = list_entry(plist, struct wlan_network, list);
495
496 rtw_bug_check(pnetwork, pnetwork, pnetwork, pnetwork);
497
498 if (is_same_network(&pnetwork->network, target, feature)) {
499 target_find = 1;
500 break;
501 }
502
503 if (rtw_roam_flags(adapter)) {
504 /* TODO: don't select network in the same ess as oldest if it's new enough*/
505 }
506
507 if (!oldest || time_after(oldest->last_scanned, pnetwork->last_scanned))
508 oldest = pnetwork;
509 }
510
511 /*
512 * If we didn't find a match, then get a new network slot to initialize
513 * with this beacon's information
514 */
515 if (!target_find) {
516 if (list_empty(&pmlmepriv->free_bss_pool.queue)) {
517 /* If there are no more slots, expire the oldest */
518 /* list_del_init(&oldest->list); */
519 pnetwork = oldest;
520 if (!pnetwork)
521 goto exit;
522
523 memcpy(&pnetwork->network, target, get_wlan_bssid_ex_sz(target));
524 /* variable initialize */
525 pnetwork->fixed = false;
526 pnetwork->last_scanned = jiffies;
527
528 pnetwork->network_type = 0;
529 pnetwork->aid = 0;
530 pnetwork->join_res = 0;
531
532 /* bss info not receiving from the right channel */
533 if (pnetwork->network.phy_info.signal_quality == 101)
534 pnetwork->network.phy_info.signal_quality = 0;
535 } else {
536 /* Otherwise just pull from the free list */
537
538 pnetwork = rtw_alloc_network(pmlmepriv); /* will update scan_time */
539
540 if (!pnetwork)
541 goto exit;
542
543 bssid_ex_sz = get_wlan_bssid_ex_sz(target);
544 target->length = bssid_ex_sz;
545 memcpy(&pnetwork->network, target, bssid_ex_sz);
546
547 pnetwork->last_scanned = jiffies;
548
549 /* bss info not receiving from the right channel */
550 if (pnetwork->network.phy_info.signal_quality == 101)
551 pnetwork->network.phy_info.signal_quality = 0;
552
553 list_add_tail(&pnetwork->list, &queue->queue);
554 }
555 } else {
556 /* we have an entry and we are going to update it. But this entry may
557 * be already expired. In this case we do the same as we found a new
558 * net and call the new_net handler
559 */
560 bool update_ie = true;
561
562 pnetwork->last_scanned = jiffies;
563
564 /* target.reserved[0]== 1, means that scanned network is a bcn frame. */
565 if (pnetwork->network.ie_length > target->ie_length && target->reserved[0] == 1)
566 update_ie = false;
567
568 /* probe resp(3) > beacon(1) > probe req(2) */
569 if (target->reserved[0] != 2 &&
570 target->reserved[0] >= pnetwork->network.reserved[0]) {
571 update_ie = true;
572 } else {
573 update_ie = false;
574 }
575
576 update_network(&pnetwork->network, target, adapter, update_ie);
577 }
578
579 exit:
580 spin_unlock_bh(&queue->lock);
581 }
582
583 void rtw_add_network(struct adapter *adapter, struct wlan_bssid_ex *pnetwork);
rtw_add_network(struct adapter * adapter,struct wlan_bssid_ex * pnetwork)584 void rtw_add_network(struct adapter *adapter, struct wlan_bssid_ex *pnetwork)
585 {
586 update_current_network(adapter, pnetwork);
587 rtw_update_scanned_network(adapter, pnetwork);
588 }
589
590 /* select the desired network based on the capability of the (i)bss.
591 * check items:
592 * (1) security
593 * (2) network_type
594 * (3) WMM
595 * (4) HT
596 * (5) others
597 */
598 int rtw_is_desired_network(struct adapter *adapter, struct wlan_network *pnetwork);
rtw_is_desired_network(struct adapter * adapter,struct wlan_network * pnetwork)599 int rtw_is_desired_network(struct adapter *adapter, struct wlan_network *pnetwork)
600 {
601 struct security_priv *psecuritypriv = &adapter->securitypriv;
602 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
603 u32 desired_encmode;
604 u32 privacy;
605 uint wps_ielen;
606 int bselected = true;
607
608 desired_encmode = psecuritypriv->ndisencryptstatus;
609 privacy = pnetwork->network.privacy;
610
611 if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
612 if (rtw_get_wps_ie(pnetwork->network.ies + _FIXED_IE_LENGTH_, pnetwork->network.ie_length - _FIXED_IE_LENGTH_, NULL, &wps_ielen))
613 return true;
614 else
615 return false;
616 }
617 if (adapter->registrypriv.wifi_spec == 1) { /* for correct flow of 8021X to do.... */
618 u8 *p = NULL;
619 uint ie_len = 0;
620
621 if ((desired_encmode == Ndis802_11EncryptionDisabled) && (privacy != 0))
622 bselected = false;
623
624 if (psecuritypriv->ndisauthtype == Ndis802_11AuthModeWPA2PSK) {
625 p = rtw_get_ie(pnetwork->network.ies + _BEACON_IE_OFFSET_, WLAN_EID_RSN, &ie_len, (pnetwork->network.ie_length - _BEACON_IE_OFFSET_));
626 if (p && ie_len > 0)
627 bselected = true;
628 else
629 bselected = false;
630 }
631 }
632
633 if ((desired_encmode != Ndis802_11EncryptionDisabled) && (privacy == 0))
634 bselected = false;
635
636 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
637 if (pnetwork->network.infrastructure_mode != pmlmepriv->cur_network.network.infrastructure_mode)
638 bselected = false;
639 }
640
641 return bselected;
642 }
643
644 /* TODO: Perry : For Power Management */
rtw_atimdone_event_callback(struct adapter * adapter,u8 * pbuf)645 void rtw_atimdone_event_callback(struct adapter *adapter, u8 *pbuf)
646 {
647 }
648
rtw_survey_event_callback(struct adapter * adapter,u8 * pbuf)649 void rtw_survey_event_callback(struct adapter *adapter, u8 *pbuf)
650 {
651 u32 len;
652 struct wlan_bssid_ex *pnetwork;
653 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
654
655 pnetwork = (struct wlan_bssid_ex *)pbuf;
656
657 len = get_wlan_bssid_ex_sz(pnetwork);
658 if (len > (sizeof(struct wlan_bssid_ex)))
659 return;
660
661 spin_lock_bh(&pmlmepriv->lock);
662
663 /* update IBSS_network 's timestamp */
664 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) {
665 if (!memcmp(&pmlmepriv->cur_network.network.mac_address, pnetwork->mac_address, ETH_ALEN)) {
666 struct wlan_network *ibss_wlan = NULL;
667
668 memcpy(pmlmepriv->cur_network.network.ies, pnetwork->ies, 8);
669 spin_lock_bh(&pmlmepriv->scanned_queue.lock);
670 ibss_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->mac_address);
671 if (ibss_wlan) {
672 memcpy(ibss_wlan->network.ies, pnetwork->ies, 8);
673 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
674 goto exit;
675 }
676 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
677 }
678 }
679
680 /* lock pmlmepriv->lock when you accessing network_q */
681 if (!check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
682 if (pnetwork->ssid.ssid[0] == 0)
683 pnetwork->ssid.ssid_length = 0;
684 rtw_add_network(adapter, pnetwork);
685 }
686
687 exit:
688
689 spin_unlock_bh(&pmlmepriv->lock);
690 }
691
rtw_surveydone_event_callback(struct adapter * adapter,u8 * pbuf)692 void rtw_surveydone_event_callback(struct adapter *adapter, u8 *pbuf)
693 {
694 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
695
696 spin_lock_bh(&pmlmepriv->lock);
697 if (pmlmepriv->wps_probe_req_ie) {
698 pmlmepriv->wps_probe_req_ie_len = 0;
699 kfree(pmlmepriv->wps_probe_req_ie);
700 pmlmepriv->wps_probe_req_ie = NULL;
701 }
702
703 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
704 spin_unlock_bh(&pmlmepriv->lock);
705 timer_delete_sync(&pmlmepriv->scan_to_timer);
706 spin_lock_bh(&pmlmepriv->lock);
707 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
708 }
709
710 rtw_set_signal_stat_timer(&adapter->recvpriv);
711
712 if (pmlmepriv->to_join) {
713 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
714 if (!check_fwstate(pmlmepriv, _FW_LINKED)) {
715 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
716
717 if (rtw_select_and_join_from_scanned_queue(pmlmepriv) == _SUCCESS) {
718 _set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
719 } else {
720 u8 ret = _SUCCESS;
721 struct wlan_bssid_ex *pdev_network = &adapter->registrypriv.dev_network;
722 u8 *pibss = adapter->registrypriv.dev_network.mac_address;
723
724 /* pmlmepriv->fw_state ^= _FW_UNDER_SURVEY;because don't set assoc_timer */
725 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
726
727 memcpy(&pdev_network->ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
728
729 rtw_update_registrypriv_dev_network(adapter);
730 rtw_generate_random_ibss(pibss);
731
732 pmlmepriv->fw_state = WIFI_ADHOC_MASTER_STATE;
733
734 pmlmepriv->to_join = false;
735
736 ret = rtw_createbss_cmd(adapter);
737 if (ret != _SUCCESS)
738 goto unlock;
739 }
740 }
741 } else {
742 int s_ret;
743
744 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
745 pmlmepriv->to_join = false;
746 s_ret = rtw_select_and_join_from_scanned_queue(pmlmepriv);
747 if (s_ret == _SUCCESS) {
748 _set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
749 } else if (s_ret == 2) {/* there is no need to wait for join */
750 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
751 rtw_indicate_connect(adapter);
752 } else {
753 if (rtw_to_roam(adapter) != 0) {
754 if (rtw_dec_to_roam(adapter) == 0
755 || _SUCCESS != rtw_sitesurvey_cmd(adapter, &pmlmepriv->assoc_ssid, 1, NULL, 0)
756 ) {
757 rtw_set_to_roam(adapter, 0);
758 rtw_free_assoc_resources(adapter, 1);
759 rtw_indicate_disconnect(adapter);
760 } else {
761 pmlmepriv->to_join = true;
762 }
763 } else
764 rtw_indicate_disconnect(adapter);
765
766 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
767 }
768 }
769 } else {
770 if (rtw_chk_roam_flags(adapter, RTW_ROAM_ACTIVE)) {
771 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)
772 && check_fwstate(pmlmepriv, _FW_LINKED)) {
773 if (rtw_select_roaming_candidate(pmlmepriv) == _SUCCESS) {
774 receive_disconnect(adapter, pmlmepriv->cur_network.network.mac_address
775 , WLAN_REASON_ACTIVE_ROAM);
776 }
777 }
778 }
779 }
780
781 unlock:
782 spin_unlock_bh(&pmlmepriv->lock);
783
784 rtw_os_xmit_schedule(adapter);
785
786 rtw_cfg80211_surveydone_event_callback(adapter);
787
788 rtw_indicate_scan_done(adapter, false);
789 }
790
rtw_dummy_event_callback(struct adapter * adapter,u8 * pbuf)791 void rtw_dummy_event_callback(struct adapter *adapter, u8 *pbuf)
792 {
793 }
794
rtw_fwdbg_event_callback(struct adapter * adapter,u8 * pbuf)795 void rtw_fwdbg_event_callback(struct adapter *adapter, u8 *pbuf)
796 {
797 }
798
free_scanqueue(struct mlme_priv * pmlmepriv)799 static void free_scanqueue(struct mlme_priv *pmlmepriv)
800 {
801 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
802 struct __queue *scan_queue = &pmlmepriv->scanned_queue;
803 struct list_head *plist, *phead, *ptemp;
804
805 spin_lock_bh(&scan_queue->lock);
806 spin_lock_bh(&free_queue->lock);
807
808 phead = get_list_head(scan_queue);
809 plist = get_next(phead);
810
811 while (plist != phead) {
812 ptemp = get_next(plist);
813 list_del_init(plist);
814 list_add_tail(plist, &free_queue->queue);
815 plist = ptemp;
816 }
817
818 spin_unlock_bh(&free_queue->lock);
819 spin_unlock_bh(&scan_queue->lock);
820 }
821
find_network(struct adapter * adapter)822 static void find_network(struct adapter *adapter)
823 {
824 struct wlan_network *pwlan = NULL;
825 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
826 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
827
828 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.mac_address);
829 if (!pwlan)
830 return;
831
832 pwlan->fixed = false;
833
834 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) &&
835 (adapter->stapriv.asoc_sta_count == 1))
836 rtw_free_network_nolock(adapter, pwlan);
837 }
838
839 /* rtw_free_assoc_resources: the caller has to lock pmlmepriv->lock */
rtw_free_assoc_resources(struct adapter * adapter,int lock_scanned_queue)840 void rtw_free_assoc_resources(struct adapter *adapter, int lock_scanned_queue)
841 {
842 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
843 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
844
845 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE)) {
846 struct sta_info *psta;
847
848 psta = rtw_get_stainfo(&adapter->stapriv, tgt_network->network.mac_address);
849 rtw_free_stainfo(adapter, psta);
850 }
851
852 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE | WIFI_AP_STATE)) {
853 struct sta_info *psta;
854
855 rtw_free_all_stainfo(adapter);
856
857 psta = rtw_get_bcmc_stainfo(adapter);
858 rtw_free_stainfo(adapter, psta);
859
860 rtw_init_bcmc_stainfo(adapter);
861 }
862
863 find_network(adapter);
864
865 if (lock_scanned_queue)
866 adapter->securitypriv.key_mask = 0;
867 }
868
869 /* rtw_indicate_connect: the caller has to lock pmlmepriv->lock */
rtw_indicate_connect(struct adapter * padapter)870 void rtw_indicate_connect(struct adapter *padapter)
871 {
872 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
873
874 pmlmepriv->to_join = false;
875
876 if (!check_fwstate(&padapter->mlmepriv, _FW_LINKED)) {
877 set_fwstate(pmlmepriv, _FW_LINKED);
878
879 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
880 check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
881 rtw_cfg80211_ibss_indicate_connect(padapter);
882 } else {
883 rtw_cfg80211_indicate_connect(padapter);
884 }
885
886 netif_carrier_on(padapter->pnetdev);
887
888 if (padapter->pid[2] != 0)
889 rtw_signal_process(padapter->pid[2], SIGALRM);
890 }
891
892 rtw_set_to_roam(padapter, 0);
893 rtw_set_scan_deny(padapter, 3000);
894 }
895
896 /* rtw_indicate_disconnect: the caller has to lock pmlmepriv->lock */
rtw_indicate_disconnect(struct adapter * padapter)897 void rtw_indicate_disconnect(struct adapter *padapter)
898 {
899 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
900
901 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING | WIFI_UNDER_WPS);
902
903 if (rtw_to_roam(padapter) > 0)
904 _clr_fwstate_(pmlmepriv, _FW_LINKED);
905
906 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) || rtw_to_roam(padapter) <= 0) {
907 /* Do it first for tx broadcast pkt after disconnection issue! */
908 netif_carrier_off(padapter->pnetdev);
909
910 rtw_cfg80211_indicate_disconnect(padapter);
911
912 /* modify for CONFIG_IEEE80211W, none 11w also can use the same command */
913 rtw_reset_securitypriv_cmd(padapter);
914
915 /* set ips_deny_time to avoid enter IPS before LPS leave */
916 rtw_set_ips_deny(padapter, 3000);
917
918 _clr_fwstate_(pmlmepriv, _FW_LINKED);
919
920 rtw_clear_scan_deny(padapter);
921 }
922
923 rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_DISCONNECT, 1);
924 }
925
rtw_indicate_scan_done(struct adapter * padapter,bool aborted)926 inline void rtw_indicate_scan_done(struct adapter *padapter, bool aborted)
927 {
928 rtw_cfg80211_indicate_scan_done(padapter, aborted);
929
930 if ((!adapter_to_pwrctl(padapter)->bInSuspend) &&
931 (!check_fwstate(&padapter->mlmepriv,
932 WIFI_ASOC_STATE | WIFI_UNDER_LINKING))) {
933 rtw_set_ips_deny(padapter, 0);
934 _set_timer(&padapter->mlmepriv.dynamic_chk_timer, 1);
935 }
936 }
937
rtw_scan_abort(struct adapter * adapter)938 void rtw_scan_abort(struct adapter *adapter)
939 {
940 unsigned long start;
941 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
942 struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
943
944 start = jiffies;
945 pmlmeext->scan_abort = true;
946 while (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)
947 && jiffies_to_msecs(start) <= 200) {
948 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
949 break;
950
951 msleep(20);
952 }
953
954 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY))
955 rtw_indicate_scan_done(adapter, true);
956
957 pmlmeext->scan_abort = false;
958 }
959
rtw_joinbss_update_stainfo(struct adapter * padapter,struct wlan_network * pnetwork)960 static struct sta_info *rtw_joinbss_update_stainfo(struct adapter *padapter, struct wlan_network *pnetwork)
961 {
962 int i;
963 struct sta_info *bmc_sta, *psta = NULL;
964 struct recv_reorder_ctrl *preorder_ctrl;
965 struct sta_priv *pstapriv = &padapter->stapriv;
966 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
967
968 psta = rtw_get_stainfo(pstapriv, pnetwork->network.mac_address);
969 if (!psta)
970 psta = rtw_alloc_stainfo(pstapriv, pnetwork->network.mac_address);
971
972 if (psta) { /* update ptarget_sta */
973
974 psta->aid = pnetwork->join_res;
975
976 update_sta_info(padapter, psta);
977
978 /* update station supportRate */
979 psta->bssratelen = rtw_get_rateset_len(pnetwork->network.supported_rates);
980 memcpy(psta->bssrateset, pnetwork->network.supported_rates, psta->bssratelen);
981 rtw_hal_update_sta_rate_mask(padapter, psta);
982
983 psta->wireless_mode = pmlmeext->cur_wireless_mode;
984 psta->raid = networktype_to_raid_ex(padapter, psta);
985
986 /* sta mode */
987 rtw_hal_set_odm_var(padapter, HAL_ODM_STA_INFO, psta, true);
988
989 /* security related */
990 if (padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
991 padapter->securitypriv.binstallGrpkey = false;
992 padapter->securitypriv.busetkipkey = false;
993 padapter->securitypriv.bgrpkey_handshake = false;
994
995 psta->ieee8021x_blocked = true;
996 psta->dot118021XPrivacy = padapter->securitypriv.dot11PrivacyAlgrthm;
997
998 memset((u8 *)&psta->dot118021x_UncstKey, 0, sizeof(union Keytype));
999
1000 memset((u8 *)&psta->dot11tkiprxmickey, 0, sizeof(union Keytype));
1001 memset((u8 *)&psta->dot11tkiptxmickey, 0, sizeof(union Keytype));
1002
1003 memset((u8 *)&psta->dot11txpn, 0, sizeof(union pn48));
1004 psta->dot11txpn.val = psta->dot11txpn.val + 1;
1005 memset((u8 *)&psta->dot11wtxpn, 0, sizeof(union pn48));
1006 memset((u8 *)&psta->dot11rxpn, 0, sizeof(union pn48));
1007 }
1008
1009 /* When doing the WPS, the wps_ie_len won't equal to 0 */
1010 /* And the Wi-Fi driver shouldn't allow the data packet to be transmitted. */
1011 if (padapter->securitypriv.wps_ie_len != 0) {
1012 psta->ieee8021x_blocked = true;
1013 padapter->securitypriv.wps_ie_len = 0;
1014 }
1015
1016 /* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info */
1017 /* if A-MPDU Rx is enabled, resetting rx_ordering_ctrl wstart_b(indicate_seq) to default value = 0xffff */
1018 /* todo: check if AP can send A-MPDU packets */
1019 for (i = 0; i < 16 ; i++) {
1020 preorder_ctrl = &psta->recvreorder_ctrl[i];
1021 preorder_ctrl->enable = false;
1022 preorder_ctrl->indicate_seq = 0xffff;
1023 preorder_ctrl->wend_b = 0xffff;
1024 preorder_ctrl->wsize_b = 64;/* max_ampdu_sz;ex. 32(kbytes) -> wsize_b =32 */
1025 }
1026
1027 bmc_sta = rtw_get_bcmc_stainfo(padapter);
1028 if (bmc_sta) {
1029 for (i = 0; i < 16 ; i++) {
1030 preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
1031 preorder_ctrl->enable = false;
1032 preorder_ctrl->indicate_seq = 0xffff;
1033 preorder_ctrl->wend_b = 0xffff;
1034 preorder_ctrl->wsize_b = 64;/* max_ampdu_sz;ex. 32(kbytes) -> wsize_b =32 */
1035 }
1036 }
1037 }
1038
1039 return psta;
1040 }
1041
1042 /* pnetwork : returns from rtw_joinbss_event_callback */
1043 /* ptarget_wlan: found from scanned_queue */
rtw_joinbss_update_network(struct adapter * padapter,struct wlan_network * ptarget_wlan,struct wlan_network * pnetwork)1044 static void rtw_joinbss_update_network(struct adapter *padapter, struct wlan_network *ptarget_wlan, struct wlan_network *pnetwork)
1045 {
1046 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1047 struct wlan_network *cur_network = &pmlmepriv->cur_network;
1048
1049 /* why not use ptarget_wlan?? */
1050 memcpy(&cur_network->network, &pnetwork->network, pnetwork->network.length);
1051 /* some ies in pnetwork is wrong, so we should use ptarget_wlan ies */
1052 cur_network->network.ie_length = ptarget_wlan->network.ie_length;
1053 memcpy(&cur_network->network.ies[0], &ptarget_wlan->network.ies[0], MAX_IE_SZ);
1054
1055 cur_network->aid = pnetwork->join_res;
1056
1057 rtw_set_signal_stat_timer(&padapter->recvpriv);
1058
1059 padapter->recvpriv.signal_strength = ptarget_wlan->network.phy_info.signal_strength;
1060 padapter->recvpriv.signal_qual = ptarget_wlan->network.phy_info.signal_quality;
1061 /* the ptarget_wlan->network.rssi is raw data, we use ptarget_wlan->network.phy_info.signal_strength instead (has scaled) */
1062 padapter->recvpriv.rssi = translate_percentage_to_dbm(ptarget_wlan->network.phy_info.signal_strength);
1063
1064 rtw_set_signal_stat_timer(&padapter->recvpriv);
1065
1066 /* update fw_state will clr _FW_UNDER_LINKING here indirectly */
1067 switch (pnetwork->network.infrastructure_mode) {
1068 case Ndis802_11Infrastructure:
1069
1070 if (pmlmepriv->fw_state & WIFI_UNDER_WPS)
1071 pmlmepriv->fw_state = WIFI_STATION_STATE | WIFI_UNDER_WPS;
1072 else
1073 pmlmepriv->fw_state = WIFI_STATION_STATE;
1074
1075 break;
1076 case Ndis802_11IBSS:
1077 pmlmepriv->fw_state = WIFI_ADHOC_STATE;
1078 break;
1079 default:
1080 pmlmepriv->fw_state = WIFI_NULL_STATE;
1081 break;
1082 }
1083
1084 rtw_update_protection(padapter, (cur_network->network.ies) + sizeof(struct ndis_802_11_fix_ie),
1085 (cur_network->network.ie_length));
1086
1087 rtw_update_ht_cap(padapter, cur_network->network.ies, cur_network->network.ie_length, (u8) cur_network->network.configuration.ds_config);
1088 }
1089
1090 static struct rt_pmkid_list backupPMKIDList[NUM_PMKID_CACHE];
rtw_reset_securitypriv(struct adapter * adapter)1091 void rtw_reset_securitypriv(struct adapter *adapter)
1092 {
1093 u8 backupPMKIDIndex = 0;
1094 u8 backupTKIPCountermeasure = 0x00;
1095 u32 backupTKIPcountermeasure_time = 0;
1096 /* add for CONFIG_IEEE80211W, none 11w also can use */
1097 struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
1098
1099 spin_lock_bh(&adapter->security_key_mutex);
1100
1101 if (adapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) {
1102 /* 802.1x */
1103 /* Added by Albert 2009/02/18 */
1104 /* We have to backup the PMK information for WiFi PMK Caching test item. */
1105 /* */
1106 /* Backup the btkip_countermeasure information. */
1107 /* When the countermeasure is trigger, the driver have to disconnect with AP for 60 seconds. */
1108
1109 memcpy(&backupPMKIDList[0], &adapter->securitypriv.PMKIDList[0], sizeof(struct rt_pmkid_list) * NUM_PMKID_CACHE);
1110 backupPMKIDIndex = adapter->securitypriv.PMKIDIndex;
1111 backupTKIPCountermeasure = adapter->securitypriv.btkip_countermeasure;
1112 backupTKIPcountermeasure_time = adapter->securitypriv.btkip_countermeasure_time;
1113
1114 /* reset RX BIP packet number */
1115 pmlmeext->mgnt_80211w_IPN_rx = 0;
1116
1117 memset((unsigned char *)&adapter->securitypriv, 0, sizeof(struct security_priv));
1118
1119 /* Added by Albert 2009/02/18 */
1120 /* Restore the PMK information to securitypriv structure for the following connection. */
1121 memcpy(&adapter->securitypriv.PMKIDList[0], &backupPMKIDList[0], sizeof(struct rt_pmkid_list) * NUM_PMKID_CACHE);
1122 adapter->securitypriv.PMKIDIndex = backupPMKIDIndex;
1123 adapter->securitypriv.btkip_countermeasure = backupTKIPCountermeasure;
1124 adapter->securitypriv.btkip_countermeasure_time = backupTKIPcountermeasure_time;
1125
1126 adapter->securitypriv.ndisauthtype = Ndis802_11AuthModeOpen;
1127 adapter->securitypriv.ndisencryptstatus = Ndis802_11WEPDisabled;
1128
1129 } else {
1130 /* reset values in securitypriv */
1131 /* if (adapter->mlmepriv.fw_state & WIFI_STATION_STATE) */
1132 /* */
1133 struct security_priv *psec_priv = &adapter->securitypriv;
1134
1135 psec_priv->dot11AuthAlgrthm = dot11AuthAlgrthm_Open; /* open system */
1136 psec_priv->dot11PrivacyAlgrthm = _NO_PRIVACY_;
1137 psec_priv->dot11PrivacyKeyIndex = 0;
1138
1139 psec_priv->dot118021XGrpPrivacy = _NO_PRIVACY_;
1140 psec_priv->dot118021XGrpKeyid = 1;
1141
1142 psec_priv->ndisauthtype = Ndis802_11AuthModeOpen;
1143 psec_priv->ndisencryptstatus = Ndis802_11WEPDisabled;
1144 /* */
1145 }
1146 /* add for CONFIG_IEEE80211W, none 11w also can use */
1147 spin_unlock_bh(&adapter->security_key_mutex);
1148 }
1149
1150 /* Notes: the function could be > passive_level (the same context as Rx tasklet) */
1151 /* pnetwork : returns from rtw_joinbss_event_callback */
1152 /* ptarget_wlan: found from scanned_queue */
1153 /* if join_res > 0, for (fw_state ==WIFI_STATION_STATE), we check if "ptarget_sta" & "ptarget_wlan" exist. */
1154 /* if join_res > 0, for (fw_state ==WIFI_ADHOC_STATE), we only check if "ptarget_wlan" exist. */
1155 /* if join_res > 0, update "cur_network->network" from "pnetwork->network" if (ptarget_wlan != NULL). */
1156 /* */
1157 /* define REJOIN */
rtw_joinbss_event_prehandle(struct adapter * adapter,u8 * pbuf)1158 void rtw_joinbss_event_prehandle(struct adapter *adapter, u8 *pbuf)
1159 {
1160 static u8 __maybe_unused retry;
1161 struct sta_info *ptarget_sta = NULL, *pcur_sta = NULL;
1162 struct sta_priv *pstapriv = &adapter->stapriv;
1163 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1164 struct wlan_network *pnetwork = (struct wlan_network *)pbuf;
1165 struct wlan_network *cur_network = &pmlmepriv->cur_network;
1166 struct wlan_network *pcur_wlan = NULL, *ptarget_wlan = NULL;
1167 unsigned int the_same_macaddr = false;
1168
1169 the_same_macaddr = !memcmp(pnetwork->network.mac_address, cur_network->network.mac_address, ETH_ALEN);
1170
1171 pnetwork->network.length = get_wlan_bssid_ex_sz(&pnetwork->network);
1172 if (pnetwork->network.length > sizeof(struct wlan_bssid_ex))
1173 return;
1174
1175 spin_lock_bh(&pmlmepriv->lock);
1176
1177 pmlmepriv->LinkDetectInfo.TrafficTransitionCount = 0;
1178 pmlmepriv->LinkDetectInfo.LowPowerTransitionCount = 0;
1179
1180 if (pnetwork->join_res > 0) {
1181 spin_lock_bh(&pmlmepriv->scanned_queue.lock);
1182 retry = 0;
1183 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
1184 /* s1. find ptarget_wlan */
1185 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1186 if (the_same_macaddr) {
1187 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.mac_address);
1188 } else {
1189 pcur_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.mac_address);
1190 if (pcur_wlan)
1191 pcur_wlan->fixed = false;
1192
1193 pcur_sta = rtw_get_stainfo(pstapriv, cur_network->network.mac_address);
1194 if (pcur_sta)
1195 rtw_free_stainfo(adapter, pcur_sta);
1196
1197 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->network.mac_address);
1198 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
1199 if (ptarget_wlan)
1200 ptarget_wlan->fixed = true;
1201 }
1202 }
1203
1204 } else {
1205 ptarget_wlan = _rtw_find_same_network(&pmlmepriv->scanned_queue, pnetwork);
1206 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
1207 if (ptarget_wlan)
1208 ptarget_wlan->fixed = true;
1209 }
1210 }
1211
1212 /* s2. update cur_network */
1213 if (ptarget_wlan) {
1214 rtw_joinbss_update_network(adapter, ptarget_wlan, pnetwork);
1215 } else {
1216 netdev_dbg(adapter->pnetdev,
1217 "Can't find ptarget_wlan when joinbss_event callback\n");
1218 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1219 goto ignore_joinbss_callback;
1220 }
1221
1222 /* s3. find ptarget_sta & update ptarget_sta after update cur_network only for station mode */
1223 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
1224 ptarget_sta = rtw_joinbss_update_stainfo(adapter, pnetwork);
1225 if (!ptarget_sta) {
1226 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1227 goto ignore_joinbss_callback;
1228 }
1229 }
1230
1231 /* s4. indicate connect */
1232 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
1233 pmlmepriv->cur_network_scanned = ptarget_wlan;
1234 rtw_indicate_connect(adapter);
1235 }
1236
1237 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1238
1239 spin_unlock_bh(&pmlmepriv->lock);
1240 /* s5. Cancel assoc_timer */
1241 timer_delete_sync(&pmlmepriv->assoc_timer);
1242 spin_lock_bh(&pmlmepriv->lock);
1243 } else {
1244 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1245 }
1246 } else if (pnetwork->join_res == -4) {
1247 rtw_reset_securitypriv(adapter);
1248 _set_timer(&pmlmepriv->assoc_timer, 1);
1249
1250 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING))
1251 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1252
1253 } else {/* if join_res < 0 (join fails), then try again */
1254
1255 #ifdef REJOIN
1256 res = _FAIL;
1257 if (retry < 2)
1258 res = rtw_select_and_join_from_scanned_queue(pmlmepriv);
1259
1260 if (res == _SUCCESS) {
1261 /* extend time of assoc_timer */
1262 _set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
1263 retry++;
1264 } else if (res == 2) {/* there is no need to wait for join */
1265 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1266 rtw_indicate_connect(adapter);
1267 } else {
1268 #endif
1269
1270 _set_timer(&pmlmepriv->assoc_timer, 1);
1271 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1272
1273 #ifdef REJOIN
1274 retry = 0;
1275 }
1276 #endif
1277 }
1278
1279 ignore_joinbss_callback:
1280
1281 spin_unlock_bh(&pmlmepriv->lock);
1282 }
1283
rtw_joinbss_event_callback(struct adapter * adapter,u8 * pbuf)1284 void rtw_joinbss_event_callback(struct adapter *adapter, u8 *pbuf)
1285 {
1286 struct wlan_network *pnetwork = (struct wlan_network *)pbuf;
1287
1288 mlmeext_joinbss_event_callback(adapter, pnetwork->join_res);
1289
1290 rtw_os_xmit_schedule(adapter);
1291 }
1292
1293 /* FOR STA, AP , AD-HOC mode */
rtw_sta_media_status_rpt(struct adapter * adapter,struct sta_info * psta,u32 mstatus)1294 void rtw_sta_media_status_rpt(struct adapter *adapter, struct sta_info *psta, u32 mstatus)
1295 {
1296 u16 media_status_rpt;
1297
1298 if (!psta)
1299 return;
1300
1301 media_status_rpt = (u16)((psta->mac_id << 8) | mstatus); /* MACID|OPMODE:1 connect */
1302 rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status_rpt);
1303 }
1304
rtw_stassoc_event_callback(struct adapter * adapter,u8 * pbuf)1305 void rtw_stassoc_event_callback(struct adapter *adapter, u8 *pbuf)
1306 {
1307 struct sta_info *psta;
1308 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1309 struct stassoc_event *pstassoc = (struct stassoc_event *)pbuf;
1310 struct wlan_network *cur_network = &pmlmepriv->cur_network;
1311 struct wlan_network *ptarget_wlan = NULL;
1312
1313 if (rtw_access_ctrl(adapter, pstassoc->macaddr) == false)
1314 return;
1315
1316 if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
1317 psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1318 if (psta) {
1319 u8 *passoc_req = NULL;
1320 u32 assoc_req_len = 0;
1321
1322 rtw_sta_media_status_rpt(adapter, psta, 1);
1323
1324 ap_sta_info_defer_update(adapter, psta);
1325
1326 /* report to upper layer */
1327 spin_lock_bh(&psta->lock);
1328 if (psta->passoc_req && psta->assoc_req_len > 0) {
1329 passoc_req = kmemdup(psta->passoc_req, psta->assoc_req_len, GFP_ATOMIC);
1330 if (passoc_req) {
1331 assoc_req_len = psta->assoc_req_len;
1332
1333 kfree(psta->passoc_req);
1334 psta->passoc_req = NULL;
1335 psta->assoc_req_len = 0;
1336 }
1337 }
1338 spin_unlock_bh(&psta->lock);
1339
1340 if (passoc_req && assoc_req_len > 0) {
1341 rtw_cfg80211_indicate_sta_assoc(adapter, passoc_req, assoc_req_len);
1342
1343 kfree(passoc_req);
1344 }
1345 }
1346 return;
1347 }
1348
1349 /* for AD-HOC mode */
1350 psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
1351 if (psta) {
1352 /* the sta have been in sta_info_queue => do nothing */
1353
1354 return; /* between drv has received this event before and fw have not yet to set key to CAM_ENTRY) */
1355 }
1356
1357 psta = rtw_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
1358 if (!psta)
1359 return;
1360
1361 /* to do : init sta_info variable */
1362 psta->qos_option = 0;
1363 psta->mac_id = (uint)pstassoc->cam_id;
1364
1365 /* for ad-hoc mode */
1366 rtw_hal_set_odm_var(adapter, HAL_ODM_STA_INFO, psta, true);
1367
1368 rtw_sta_media_status_rpt(adapter, psta, 1);
1369
1370 if (adapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X)
1371 psta->dot118021XPrivacy = adapter->securitypriv.dot11PrivacyAlgrthm;
1372
1373 psta->ieee8021x_blocked = false;
1374
1375 spin_lock_bh(&pmlmepriv->lock);
1376
1377 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
1378 check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1379 if (adapter->stapriv.asoc_sta_count == 2) {
1380 spin_lock_bh(&pmlmepriv->scanned_queue.lock);
1381 ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.mac_address);
1382 pmlmepriv->cur_network_scanned = ptarget_wlan;
1383 if (ptarget_wlan)
1384 ptarget_wlan->fixed = true;
1385 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1386 /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
1387 rtw_indicate_connect(adapter);
1388 }
1389 }
1390
1391 spin_unlock_bh(&pmlmepriv->lock);
1392
1393 mlmeext_sta_add_event_callback(adapter, psta);
1394 }
1395
rtw_stadel_event_callback(struct adapter * adapter,u8 * pbuf)1396 void rtw_stadel_event_callback(struct adapter *adapter, u8 *pbuf)
1397 {
1398 int mac_id = (-1);
1399 struct sta_info *psta;
1400 struct wlan_network *pwlan = NULL;
1401 struct wlan_bssid_ex *pdev_network = NULL;
1402 u8 *pibss = NULL;
1403 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1404 struct stadel_event *pstadel = (struct stadel_event *)pbuf;
1405 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
1406 struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
1407 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
1408
1409 psta = rtw_get_stainfo(&adapter->stapriv, pstadel->macaddr);
1410 if (psta)
1411 mac_id = psta->mac_id;
1412 else
1413 mac_id = pstadel->mac_id;
1414
1415 if (mac_id >= 0) {
1416 u16 media_status;
1417
1418 media_status = (mac_id << 8) | 0; /* MACID|OPMODE:0 means disconnect */
1419 /* for STA, AP, ADHOC mode, report disconnect stauts to FW */
1420 rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status);
1421 }
1422
1423 /* if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) */
1424 if ((pmlmeinfo->state & 0x03) == WIFI_FW_AP_STATE)
1425 return;
1426
1427 mlmeext_sta_del_event_callback(adapter);
1428
1429 spin_lock_bh(&pmlmepriv->lock);
1430
1431 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
1432 u16 reason = *((unsigned short *)(pstadel->rsvd));
1433 bool roam = false;
1434 struct wlan_network *roam_target = NULL;
1435
1436 if (adapter->registrypriv.wifi_spec == 1) {
1437 roam = false;
1438 } else if (reason == WLAN_REASON_EXPIRATION_CHK && rtw_chk_roam_flags(adapter, RTW_ROAM_ON_EXPIRED)) {
1439 roam = true;
1440 } else if (reason == WLAN_REASON_ACTIVE_ROAM && rtw_chk_roam_flags(adapter, RTW_ROAM_ACTIVE)) {
1441 roam = true;
1442 roam_target = pmlmepriv->roam_network;
1443 }
1444
1445 if (roam) {
1446 if (rtw_to_roam(adapter) > 0)
1447 rtw_dec_to_roam(adapter); /* this stadel_event is caused by roaming, decrease to_roam */
1448 else if (rtw_to_roam(adapter) == 0)
1449 rtw_set_to_roam(adapter, adapter->registrypriv.max_roaming_times);
1450 } else {
1451 rtw_set_to_roam(adapter, 0);
1452 }
1453
1454 rtw_free_uc_swdec_pending_queue(adapter);
1455
1456 rtw_free_assoc_resources(adapter, 1);
1457 rtw_indicate_disconnect(adapter);
1458
1459 spin_lock_bh(&pmlmepriv->scanned_queue.lock);
1460 /* remove the network entry in scanned_queue */
1461 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.mac_address);
1462 if (pwlan) {
1463 pwlan->fixed = false;
1464 rtw_free_network_nolock(adapter, pwlan);
1465 }
1466 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1467
1468 _rtw_roaming(adapter, roam_target);
1469 }
1470
1471 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
1472 check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1473 rtw_free_stainfo(adapter, psta);
1474
1475 if (adapter->stapriv.asoc_sta_count == 1) {/* a sta + bc/mc_stainfo (not Ibss_stainfo) */
1476 u8 ret = _SUCCESS;
1477
1478 spin_lock_bh(&pmlmepriv->scanned_queue.lock);
1479 /* free old ibss network */
1480 pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.mac_address);
1481 if (pwlan) {
1482 pwlan->fixed = false;
1483 rtw_free_network_nolock(adapter, pwlan);
1484 }
1485 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1486 /* re-create ibss */
1487 pdev_network = &adapter->registrypriv.dev_network;
1488 pibss = adapter->registrypriv.dev_network.mac_address;
1489
1490 memcpy(pdev_network, &tgt_network->network, get_wlan_bssid_ex_sz(&tgt_network->network));
1491
1492 memcpy(&pdev_network->ssid, &pmlmepriv->assoc_ssid, sizeof(struct ndis_802_11_ssid));
1493
1494 rtw_update_registrypriv_dev_network(adapter);
1495
1496 rtw_generate_random_ibss(pibss);
1497
1498 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1499 set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
1500 _clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
1501 }
1502
1503 ret = rtw_createbss_cmd(adapter);
1504 if (ret != _SUCCESS)
1505 goto unlock;
1506 }
1507 }
1508
1509 unlock:
1510 spin_unlock_bh(&pmlmepriv->lock);
1511 }
1512
rtw_cpwm_event_callback(struct adapter * padapter,u8 * pbuf)1513 void rtw_cpwm_event_callback(struct adapter *padapter, u8 *pbuf)
1514 {
1515 struct reportpwrstate_parm *preportpwrstate;
1516
1517 preportpwrstate = (struct reportpwrstate_parm *)pbuf;
1518 preportpwrstate->state |= (u8)(adapter_to_pwrctl(padapter)->cpwm_tog + 0x80);
1519 cpwm_int_hdl(padapter, preportpwrstate);
1520 }
1521
rtw_wmm_event_callback(struct adapter * padapter,u8 * pbuf)1522 void rtw_wmm_event_callback(struct adapter *padapter, u8 *pbuf)
1523 {
1524 WMMOnAssocRsp(padapter);
1525 }
1526
1527 /*
1528 * _rtw_join_timeout_handler - Timeout/failure handler for CMD JoinBss
1529 * @adapter: pointer to struct adapter structure
1530 */
_rtw_join_timeout_handler(struct timer_list * t)1531 void _rtw_join_timeout_handler(struct timer_list *t)
1532 {
1533 struct adapter *adapter = timer_container_of(adapter, t,
1534 mlmepriv.assoc_timer);
1535 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1536
1537 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1538 return;
1539
1540 spin_lock_bh(&pmlmepriv->lock);
1541
1542 if (rtw_to_roam(adapter) > 0) { /* join timeout caused by roaming */
1543 while (1) {
1544 rtw_dec_to_roam(adapter);
1545 if (rtw_to_roam(adapter) != 0) { /* try another */
1546 int do_join_r;
1547
1548 do_join_r = rtw_do_join(adapter);
1549 if (do_join_r != _SUCCESS)
1550 continue;
1551
1552 break;
1553 }
1554
1555 rtw_indicate_disconnect(adapter);
1556 break;
1557 }
1558
1559 } else {
1560 rtw_indicate_disconnect(adapter);
1561 free_scanqueue(pmlmepriv);/* */
1562
1563 /* indicate disconnect for the case that join_timeout and check_fwstate != FW_LINKED */
1564 rtw_cfg80211_indicate_disconnect(adapter);
1565 }
1566
1567 spin_unlock_bh(&pmlmepriv->lock);
1568 }
1569
1570 /*
1571 * rtw_scan_timeout_handler - Timeout/Failure handler for CMD SiteSurvey
1572 * @adapter: pointer to struct adapter structure
1573 */
rtw_scan_timeout_handler(struct timer_list * t)1574 void rtw_scan_timeout_handler(struct timer_list *t)
1575 {
1576 struct adapter *adapter = timer_container_of(adapter, t,
1577 mlmepriv.scan_to_timer);
1578 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1579
1580 spin_lock_bh(&pmlmepriv->lock);
1581
1582 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
1583
1584 spin_unlock_bh(&pmlmepriv->lock);
1585
1586 rtw_indicate_scan_done(adapter, true);
1587 }
1588
rtw_mlme_reset_auto_scan_int(struct adapter * adapter)1589 void rtw_mlme_reset_auto_scan_int(struct adapter *adapter)
1590 {
1591 struct mlme_priv *mlme = &adapter->mlmepriv;
1592 struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
1593 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
1594
1595 if (pmlmeinfo->VHT_enable) /* disable auto scan when connect to 11AC AP */
1596 mlme->auto_scan_int_ms = 0;
1597 else if (adapter->registrypriv.wifi_spec && is_client_associated_to_ap(adapter) == true)
1598 mlme->auto_scan_int_ms = 60 * 1000;
1599 else if (rtw_chk_roam_flags(adapter, RTW_ROAM_ACTIVE)) {
1600 if (check_fwstate(mlme, WIFI_STATION_STATE) && check_fwstate(mlme, _FW_LINKED))
1601 mlme->auto_scan_int_ms = mlme->roam_scan_int_ms;
1602 } else
1603 mlme->auto_scan_int_ms = 0; /* disabled */
1604 }
1605
rtw_auto_scan_handler(struct adapter * padapter)1606 static void rtw_auto_scan_handler(struct adapter *padapter)
1607 {
1608 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1609
1610 rtw_mlme_reset_auto_scan_int(padapter);
1611
1612 if (pmlmepriv->auto_scan_int_ms != 0
1613 && jiffies_to_msecs(jiffies - pmlmepriv->scan_start_time) > pmlmepriv->auto_scan_int_ms) {
1614 if (!padapter->registrypriv.wifi_spec) {
1615 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY | _FW_UNDER_LINKING))
1616 goto exit;
1617
1618 if (pmlmepriv->LinkDetectInfo.bBusyTraffic)
1619 goto exit;
1620 }
1621
1622 rtw_set_802_11_bssid_list_scan(padapter, NULL, 0);
1623 }
1624
1625 exit:
1626 return;
1627 }
1628
rtw_dynamic_check_timer_handler(struct adapter * adapter)1629 void rtw_dynamic_check_timer_handler(struct adapter *adapter)
1630 {
1631 if (!adapter)
1632 return;
1633
1634 if (!adapter->hw_init_completed)
1635 return;
1636
1637 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1638 return;
1639
1640 if (adapter->net_closed)
1641 return;
1642
1643 if ((adapter_to_pwrctl(adapter)->fw_current_in_ps_mode)
1644 && !(hal_btcoex_IsBtControlLps(adapter))
1645 ) {
1646 u8 bEnterPS;
1647
1648 linked_status_chk(adapter);
1649
1650 bEnterPS = traffic_status_watchdog(adapter, 1);
1651 if (bEnterPS) {
1652 /* rtw_lps_ctrl_wk_cmd(adapter, LPS_CTRL_ENTER, 1); */
1653 rtw_hal_dm_watchdog_in_lps(adapter);
1654 } else {
1655 /* call rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_LEAVE, 1) in traffic_status_watchdog() */
1656 }
1657
1658 } else {
1659 rtw_dynamic_chk_wk_cmd(adapter);
1660 }
1661
1662 /* auto site survey */
1663 rtw_auto_scan_handler(adapter);
1664 }
1665
rtw_is_scan_deny(struct adapter * adapter)1666 inline bool rtw_is_scan_deny(struct adapter *adapter)
1667 {
1668 struct mlme_priv *mlmepriv = &adapter->mlmepriv;
1669
1670 return (atomic_read(&mlmepriv->set_scan_deny) != 0) ? true : false;
1671 }
1672
rtw_clear_scan_deny(struct adapter * adapter)1673 inline void rtw_clear_scan_deny(struct adapter *adapter)
1674 {
1675 struct mlme_priv *mlmepriv = &adapter->mlmepriv;
1676
1677 atomic_set(&mlmepriv->set_scan_deny, 0);
1678 }
1679
rtw_set_scan_deny(struct adapter * adapter,u32 ms)1680 void rtw_set_scan_deny(struct adapter *adapter, u32 ms)
1681 {
1682 struct mlme_priv *mlmepriv = &adapter->mlmepriv;
1683
1684 atomic_set(&mlmepriv->set_scan_deny, 1);
1685 _set_timer(&mlmepriv->set_scan_deny_timer, ms);
1686 }
1687
1688 /*
1689 * Select a new roaming candidate from the original @param candidate and @param competitor
1690 * @return true: candidate is updated
1691 * @return false: candidate is not updated
1692 */
rtw_check_roaming_candidate(struct mlme_priv * mlme,struct wlan_network ** candidate,struct wlan_network * competitor)1693 static int rtw_check_roaming_candidate(struct mlme_priv *mlme
1694 , struct wlan_network **candidate, struct wlan_network *competitor)
1695 {
1696 int updated = false;
1697 struct adapter *adapter = container_of(mlme, struct adapter, mlmepriv);
1698
1699 if (is_same_ess(&competitor->network, &mlme->cur_network.network) == false)
1700 goto exit;
1701
1702 if (rtw_is_desired_network(adapter, competitor) == false)
1703 goto exit;
1704
1705 /* got specific addr to roam */
1706 if (!is_zero_mac_addr(mlme->roam_tgt_addr)) {
1707 if (!memcmp(mlme->roam_tgt_addr, competitor->network.mac_address, ETH_ALEN))
1708 goto update;
1709 else
1710 goto exit;
1711 }
1712 if (jiffies_to_msecs(jiffies - competitor->last_scanned) >= mlme->roam_scanr_exp_ms)
1713 goto exit;
1714
1715 if (competitor->network.rssi - mlme->cur_network_scanned->network.rssi < mlme->roam_rssi_diff_th)
1716 goto exit;
1717
1718 if (*candidate && (*candidate)->network.rssi >= competitor->network.rssi)
1719 goto exit;
1720
1721 update:
1722 *candidate = competitor;
1723 updated = true;
1724
1725 exit:
1726 return updated;
1727 }
1728
rtw_select_roaming_candidate(struct mlme_priv * mlme)1729 int rtw_select_roaming_candidate(struct mlme_priv *mlme)
1730 {
1731 int ret = _FAIL;
1732 struct list_head *phead;
1733 struct __queue *queue = &mlme->scanned_queue;
1734 struct wlan_network *pnetwork = NULL;
1735 struct wlan_network *candidate = NULL;
1736
1737 if (!mlme->cur_network_scanned) {
1738 rtw_warn_on(1);
1739 return ret;
1740 }
1741
1742 spin_lock_bh(&mlme->scanned_queue.lock);
1743 phead = get_list_head(queue);
1744
1745 list_for_each(mlme->pscanned, phead) {
1746 pnetwork = list_entry(mlme->pscanned, struct wlan_network,
1747 list);
1748
1749 rtw_check_roaming_candidate(mlme, &candidate, pnetwork);
1750 }
1751
1752 if (!candidate) {
1753 ret = _FAIL;
1754 goto exit;
1755 } else {
1756 mlme->roam_network = candidate;
1757
1758 if (!memcmp(candidate->network.mac_address, mlme->roam_tgt_addr, ETH_ALEN))
1759 eth_zero_addr(mlme->roam_tgt_addr);
1760 }
1761
1762 ret = _SUCCESS;
1763 exit:
1764 spin_unlock_bh(&mlme->scanned_queue.lock);
1765
1766 return ret;
1767 }
1768
1769 /*
1770 * Select a new join candidate from the original @param candidate and @param competitor
1771 * @return true: candidate is updated
1772 * @return false: candidate is not updated
1773 */
rtw_check_join_candidate(struct mlme_priv * mlme,struct wlan_network ** candidate,struct wlan_network * competitor)1774 static int rtw_check_join_candidate(struct mlme_priv *mlme
1775 , struct wlan_network **candidate, struct wlan_network *competitor)
1776 {
1777 int updated = false;
1778 struct adapter *adapter = container_of(mlme, struct adapter, mlmepriv);
1779
1780 /* check bssid, if needed */
1781 if (mlme->assoc_by_bssid) {
1782 if (memcmp(competitor->network.mac_address, mlme->assoc_bssid, ETH_ALEN))
1783 goto exit;
1784 }
1785
1786 /* check ssid, if needed */
1787 if (mlme->assoc_ssid.ssid[0] && mlme->assoc_ssid.ssid_length) {
1788 if (competitor->network.ssid.ssid_length != mlme->assoc_ssid.ssid_length
1789 || memcmp(competitor->network.ssid.ssid, mlme->assoc_ssid.ssid, mlme->assoc_ssid.ssid_length)
1790 )
1791 goto exit;
1792 }
1793
1794 if (rtw_is_desired_network(adapter, competitor) == false)
1795 goto exit;
1796
1797 if (rtw_to_roam(adapter) > 0) {
1798 if (jiffies_to_msecs(jiffies - competitor->last_scanned) >= mlme->roam_scanr_exp_ms
1799 || is_same_ess(&competitor->network, &mlme->cur_network.network) == false
1800 )
1801 goto exit;
1802 }
1803
1804 if (!*candidate || (*candidate)->network.rssi < competitor->network.rssi) {
1805 *candidate = competitor;
1806 updated = true;
1807 }
1808
1809 exit:
1810 return updated;
1811 }
1812
1813 /*
1814 * Calling context:
1815 * The caller of the sub-routine will be in critical section...
1816 * The caller must hold the following spinlock
1817 * pmlmepriv->lock
1818 */
1819
rtw_select_and_join_from_scanned_queue(struct mlme_priv * pmlmepriv)1820 int rtw_select_and_join_from_scanned_queue(struct mlme_priv *pmlmepriv)
1821 {
1822 int ret;
1823 struct list_head *phead;
1824 struct adapter *adapter;
1825 struct __queue *queue = &pmlmepriv->scanned_queue;
1826 struct wlan_network *pnetwork = NULL;
1827 struct wlan_network *candidate = NULL;
1828
1829 adapter = (struct adapter *)pmlmepriv->nic_hdl;
1830
1831 spin_lock_bh(&pmlmepriv->scanned_queue.lock);
1832
1833 if (pmlmepriv->roam_network) {
1834 candidate = pmlmepriv->roam_network;
1835 pmlmepriv->roam_network = NULL;
1836 goto candidate_exist;
1837 }
1838
1839 phead = get_list_head(queue);
1840 list_for_each(pmlmepriv->pscanned, phead) {
1841 pnetwork = list_entry(pmlmepriv->pscanned,
1842 struct wlan_network, list);
1843
1844 rtw_check_join_candidate(pmlmepriv, &candidate, pnetwork);
1845 }
1846
1847 if (!candidate) {
1848 ret = _FAIL;
1849 goto exit;
1850 } else {
1851 goto candidate_exist;
1852 }
1853
1854 candidate_exist:
1855
1856 /* check for situation of _FW_LINKED */
1857 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1858 rtw_disassoc_cmd(adapter, 0, true);
1859 rtw_indicate_disconnect(adapter);
1860 rtw_free_assoc_resources(adapter, 0);
1861 }
1862
1863 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
1864 ret = rtw_joinbss_cmd(adapter, candidate);
1865
1866 exit:
1867 spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
1868 return ret;
1869 }
1870
rtw_set_auth(struct adapter * adapter,struct security_priv * psecuritypriv)1871 signed int rtw_set_auth(struct adapter *adapter, struct security_priv *psecuritypriv)
1872 {
1873 struct cmd_obj *pcmd;
1874 struct setauth_parm *psetauthparm;
1875 struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
1876 signed int res = _SUCCESS;
1877
1878 pcmd = kzalloc_obj(*pcmd);
1879 if (!pcmd) {
1880 res = _FAIL; /* try again */
1881 goto exit;
1882 }
1883
1884 psetauthparm = kzalloc_obj(*psetauthparm);
1885 if (!psetauthparm) {
1886 kfree(pcmd);
1887 res = _FAIL;
1888 goto exit;
1889 }
1890
1891 psetauthparm->mode = (unsigned char)psecuritypriv->dot11AuthAlgrthm;
1892
1893 pcmd->cmdcode = _SetAuth_CMD_;
1894 pcmd->parmbuf = (unsigned char *)psetauthparm;
1895 pcmd->cmdsz = (sizeof(struct setauth_parm));
1896 pcmd->rsp = NULL;
1897 pcmd->rspsz = 0;
1898
1899 INIT_LIST_HEAD(&pcmd->list);
1900
1901 res = rtw_enqueue_cmd(pcmdpriv, pcmd);
1902
1903 exit:
1904 return res;
1905 }
1906
rtw_set_key(struct adapter * adapter,struct security_priv * psecuritypriv,signed int keyid,u8 set_tx,bool enqueue)1907 signed int rtw_set_key(struct adapter *adapter, struct security_priv *psecuritypriv, signed int keyid, u8 set_tx, bool enqueue)
1908 {
1909 u8 keylen;
1910 struct cmd_obj *pcmd;
1911 struct setkey_parm *psetkeyparm;
1912 struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
1913 signed int res = _SUCCESS;
1914
1915 psetkeyparm = kzalloc_obj(*psetkeyparm);
1916 if (!psetkeyparm) {
1917 res = _FAIL;
1918 goto exit;
1919 }
1920
1921 if (psecuritypriv->dot11AuthAlgrthm == dot11AuthAlgrthm_8021X)
1922 psetkeyparm->algorithm = (unsigned char)psecuritypriv->dot118021XGrpPrivacy;
1923 else
1924 psetkeyparm->algorithm = (u8)psecuritypriv->dot11PrivacyAlgrthm;
1925
1926 psetkeyparm->keyid = (u8)keyid;/* 0~3 */
1927 psetkeyparm->set_tx = set_tx;
1928 if (is_wep_enc(psetkeyparm->algorithm))
1929 adapter->securitypriv.key_mask |= BIT(psetkeyparm->keyid);
1930
1931 switch (psetkeyparm->algorithm) {
1932 case _WEP40_:
1933 keylen = 5;
1934 memcpy(&psetkeyparm->key[0], &psecuritypriv->dot11DefKey[keyid].skey[0], keylen);
1935 break;
1936 case _WEP104_:
1937 keylen = 13;
1938 memcpy(&psetkeyparm->key[0], &psecuritypriv->dot11DefKey[keyid].skey[0], keylen);
1939 break;
1940 case _TKIP_:
1941 keylen = 16;
1942 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
1943 psetkeyparm->grpkey = 1;
1944 break;
1945 case _AES_:
1946 keylen = 16;
1947 memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
1948 psetkeyparm->grpkey = 1;
1949 break;
1950 default:
1951 res = _FAIL;
1952 kfree(psetkeyparm);
1953 goto exit;
1954 }
1955
1956 if (enqueue) {
1957 pcmd = kzalloc_obj(*pcmd);
1958 if (!pcmd) {
1959 kfree(psetkeyparm);
1960 res = _FAIL; /* try again */
1961 goto exit;
1962 }
1963
1964 pcmd->cmdcode = _SetKey_CMD_;
1965 pcmd->parmbuf = (u8 *)psetkeyparm;
1966 pcmd->cmdsz = (sizeof(struct setkey_parm));
1967 pcmd->rsp = NULL;
1968 pcmd->rspsz = 0;
1969
1970 INIT_LIST_HEAD(&pcmd->list);
1971
1972 res = rtw_enqueue_cmd(pcmdpriv, pcmd);
1973 } else {
1974 setkey_hdl(adapter, (u8 *)psetkeyparm);
1975 kfree(psetkeyparm);
1976 }
1977 exit:
1978 return res;
1979 }
1980
1981 /* 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)1982 int rtw_restruct_wmm_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len, uint initial_out_len)
1983 {
1984 unsigned int ielength = 0;
1985 unsigned int i, j;
1986
1987 i = 12; /* after the fixed IE */
1988 while (i < in_len) {
1989 ielength = initial_out_len;
1990
1991 if (i + 5 < in_len &&
1992 in_ie[i] == 0xDD && in_ie[i + 2] == 0x00 &&
1993 in_ie[i + 3] == 0x50 && in_ie[i + 4] == 0xF2 &&
1994 in_ie[i + 5] == 0x02) {
1995 for (j = i; j < i + 9; j++) {
1996 out_ie[ielength] = in_ie[j];
1997 ielength++;
1998 }
1999 out_ie[initial_out_len + 1] = 0x07;
2000 out_ie[initial_out_len + 6] = 0x00;
2001 out_ie[initial_out_len + 8] = 0x00;
2002
2003 break;
2004 }
2005
2006 i += (in_ie[i + 1] + 2); /* to the next IE element */
2007 }
2008
2009 return ielength;
2010 }
2011
2012 /* Ported from 8185: IsInPreAuthKeyList().
2013 * (Renamed from SecIsInPreAuthKeyList(), 2006-10-13.)
2014 * Added by Annie, 2006-05-07.
2015 *
2016 * Search by BSSID,
2017 *
2018 * Return Value:
2019 * -1: if there is no pre-auth key in the table
2020 * >=0: if there is pre-auth key, and return the entry id
2021 */
SecIsInPMKIDList(struct adapter * Adapter,u8 * bssid)2022 static int SecIsInPMKIDList(struct adapter *Adapter, u8 *bssid)
2023 {
2024 struct security_priv *p = &Adapter->securitypriv;
2025 int i;
2026
2027 for (i = 0; i < NUM_PMKID_CACHE; i++)
2028 if ((p->PMKIDList[i].bUsed) &&
2029 (!memcmp(p->PMKIDList[i].Bssid, bssid, ETH_ALEN)))
2030 return i;
2031 return -1;
2032 }
2033
2034 /* */
2035 /* Check the RSN IE length */
2036 /* If the RSN IE length <= 20, the RSN IE didn't include the PMKID information */
2037 /* 0-11th element in the array are the fixed IE */
2038 /* 12th element in the array is the IE */
2039 /* 13th element in the array is the IE length */
2040 /* */
2041
rtw_append_pmkid(struct adapter * Adapter,int iEntry,u8 * ie,uint ie_len)2042 static int rtw_append_pmkid(struct adapter *Adapter, int iEntry, u8 *ie, uint ie_len)
2043 {
2044 struct security_priv *psecuritypriv = &Adapter->securitypriv;
2045
2046 if (ie[13] <= 20) {
2047 /* The RSN IE didn't include the PMK ID, append the PMK information */
2048 ie[ie_len] = 1;
2049 ie_len++;
2050 ie[ie_len] = 0; /* PMKID count = 0x0100 */
2051 ie_len++;
2052 memcpy(&ie[ie_len], &psecuritypriv->PMKIDList[iEntry].PMKID, 16);
2053 ie_len += 16;
2054 ie[13] += 18;/* PMKID length = 2+16 */
2055 }
2056 return ie_len;
2057 }
2058
rtw_report_sec_ie(struct adapter * adapter,u8 authmode,u8 * sec_ie)2059 static void rtw_report_sec_ie(struct adapter *adapter, u8 authmode, u8 *sec_ie)
2060 {
2061 uint len;
2062 u8 *buff, *p;
2063 union iwreq_data wrqu;
2064
2065 buff = NULL;
2066 if (authmode == WLAN_EID_VENDOR_SPECIFIC) {
2067 buff = kzalloc(IW_CUSTOM_MAX, GFP_ATOMIC);
2068 if (!buff)
2069 return;
2070
2071 p = buff;
2072
2073 p += scnprintf(p, IW_CUSTOM_MAX - (p - buff), "ASSOCINFO(ReqIEs =");
2074
2075 len = sec_ie[1] + 2;
2076 len = (len < IW_CUSTOM_MAX) ? len : IW_CUSTOM_MAX;
2077
2078 p += scnprintf(p, IW_CUSTOM_MAX - (p - buff), " %*ph", len, sec_ie);
2079
2080 p += scnprintf(p, IW_CUSTOM_MAX - (p - buff), ")");
2081
2082 memset(&wrqu, 0, sizeof(wrqu));
2083
2084 wrqu.data.length = p - buff;
2085
2086 wrqu.data.length = (wrqu.data.length < IW_CUSTOM_MAX) ? wrqu.data.length : IW_CUSTOM_MAX;
2087
2088 kfree(buff);
2089 }
2090 }
2091
rtw_restruct_sec_ie(struct adapter * adapter,u8 * in_ie,u8 * out_ie,uint in_len)2092 signed int rtw_restruct_sec_ie(struct adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len)
2093 {
2094 u8 authmode = 0x0;
2095 uint ielength;
2096 int iEntry;
2097
2098 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
2099 struct security_priv *psecuritypriv = &adapter->securitypriv;
2100 uint ndisauthmode = psecuritypriv->ndisauthtype;
2101
2102 /* copy fixed ie only */
2103 memcpy(out_ie, in_ie, 12);
2104 ielength = 12;
2105 if ((ndisauthmode == Ndis802_11AuthModeWPA) || (ndisauthmode == Ndis802_11AuthModeWPAPSK))
2106 authmode = WLAN_EID_VENDOR_SPECIFIC;
2107 if ((ndisauthmode == Ndis802_11AuthModeWPA2) || (ndisauthmode == Ndis802_11AuthModeWPA2PSK))
2108 authmode = WLAN_EID_RSN;
2109
2110 if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) {
2111 memcpy(out_ie + ielength, psecuritypriv->wps_ie, psecuritypriv->wps_ie_len);
2112
2113 ielength += psecuritypriv->wps_ie_len;
2114 } else if ((authmode == WLAN_EID_VENDOR_SPECIFIC) || (authmode == WLAN_EID_RSN)) {
2115 /* copy RSN or SSN */
2116 memcpy(&out_ie[ielength], &psecuritypriv->supplicant_ie[0], psecuritypriv->supplicant_ie[1] + 2);
2117 ielength += psecuritypriv->supplicant_ie[1] + 2;
2118 rtw_report_sec_ie(adapter, authmode, psecuritypriv->supplicant_ie);
2119 }
2120
2121 iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
2122 if (iEntry < 0)
2123 return ielength;
2124
2125 if (authmode == WLAN_EID_RSN)
2126 ielength = rtw_append_pmkid(adapter, iEntry, out_ie, ielength);
2127
2128 return ielength;
2129 }
2130
rtw_init_registrypriv_dev_network(struct adapter * adapter)2131 void rtw_init_registrypriv_dev_network(struct adapter *adapter)
2132 {
2133 struct registry_priv *pregistrypriv = &adapter->registrypriv;
2134 struct eeprom_priv *peepriv = &adapter->eeprompriv;
2135 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
2136 u8 *myhwaddr = myid(peepriv);
2137
2138 memcpy(pdev_network->mac_address, myhwaddr, ETH_ALEN);
2139
2140 memcpy(&pdev_network->ssid, &pregistrypriv->ssid, sizeof(struct ndis_802_11_ssid));
2141
2142 pdev_network->configuration.length = sizeof(struct ndis_802_11_conf);
2143 pdev_network->configuration.beacon_period = 100;
2144 }
2145
rtw_update_registrypriv_dev_network(struct adapter * adapter)2146 void rtw_update_registrypriv_dev_network(struct adapter *adapter)
2147 {
2148 int sz = 0;
2149 struct registry_priv *pregistrypriv = &adapter->registrypriv;
2150 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
2151 struct security_priv *psecuritypriv = &adapter->securitypriv;
2152 struct wlan_network *cur_network = &adapter->mlmepriv.cur_network;
2153
2154 pdev_network->privacy = (psecuritypriv->dot11PrivacyAlgrthm > 0 ? 1 : 0) ; /* adhoc no 802.1x */
2155
2156 pdev_network->rssi = 0;
2157
2158 switch (pregistrypriv->wireless_mode) {
2159 case WIRELESS_11B:
2160 pdev_network->network_type_in_use = (Ndis802_11DS);
2161 break;
2162 case WIRELESS_11G:
2163 case WIRELESS_11BG:
2164 case WIRELESS_11_24N:
2165 case WIRELESS_11G_24N:
2166 case WIRELESS_11BG_24N:
2167 pdev_network->network_type_in_use = (Ndis802_11OFDM24);
2168 break;
2169 default:
2170 /* TODO */
2171 break;
2172 }
2173
2174 pdev_network->configuration.ds_config = (pregistrypriv->channel);
2175
2176 if (cur_network->network.infrastructure_mode == Ndis802_11IBSS)
2177 pdev_network->configuration.atim_window = (0);
2178
2179 pdev_network->infrastructure_mode = (cur_network->network.infrastructure_mode);
2180
2181 /* 1. Supported rates */
2182 /* 2. IE */
2183
2184 /* rtw_set_supported_rate(pdev_network->supported_rates, pregistrypriv->wireless_mode) ; will be called in rtw_generate_ie */
2185 sz = rtw_generate_ie(pregistrypriv);
2186
2187 pdev_network->ie_length = sz;
2188
2189 pdev_network->length = get_wlan_bssid_ex_sz((struct wlan_bssid_ex *)pdev_network);
2190
2191 /* notes: translate ie_length & length after assign the length to cmdsz in createbss_cmd(); */
2192 /* pdev_network->ie_length = cpu_to_le32(sz); */
2193 }
2194
2195 /* the function is at passive_level */
rtw_joinbss_reset(struct adapter * padapter)2196 void rtw_joinbss_reset(struct adapter *padapter)
2197 {
2198 u8 threshold;
2199 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2200
2201 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
2202
2203 /* todo: if you want to do something io/reg/hw setting before join_bss, please add code here */
2204
2205 pmlmepriv->num_FortyMHzIntolerant = 0;
2206
2207 pmlmepriv->num_sta_no_ht = 0;
2208
2209 phtpriv->ampdu_enable = false;/* reset to disabled */
2210
2211 /* TH = 1 => means that invalidate usb rx aggregation */
2212 /* TH = 0 => means that validate usb rx aggregation, use init value. */
2213 if (phtpriv->ht_option) {
2214 if (padapter->registrypriv.wifi_spec == 1)
2215 threshold = 1;
2216 else
2217 threshold = 0;
2218 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
2219 } else {
2220 threshold = 1;
2221 rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
2222 }
2223 }
2224
rtw_ht_use_default_setting(struct adapter * padapter)2225 void rtw_ht_use_default_setting(struct adapter *padapter)
2226 {
2227 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2228 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
2229 struct registry_priv *pregistrypriv = &padapter->registrypriv;
2230 bool bHwLDPCSupport = false, bHwSTBCSupport = false;
2231 bool bHwSupportBeamformer = false, bHwSupportBeamformee = false;
2232
2233 if (pregistrypriv->wifi_spec)
2234 phtpriv->bss_coexist = 1;
2235 else
2236 phtpriv->bss_coexist = 0;
2237
2238 phtpriv->sgi_40m = TEST_FLAG(pregistrypriv->short_gi, BIT1) ? true : false;
2239 phtpriv->sgi_20m = TEST_FLAG(pregistrypriv->short_gi, BIT0) ? true : false;
2240
2241 /* LDPC support */
2242 rtw_hal_get_def_var(padapter, HAL_DEF_RX_LDPC, (u8 *)&bHwLDPCSupport);
2243 CLEAR_FLAGS(phtpriv->ldpc_cap);
2244 if (bHwLDPCSupport) {
2245 if (TEST_FLAG(pregistrypriv->ldpc_cap, BIT4))
2246 SET_FLAG(phtpriv->ldpc_cap, LDPC_HT_ENABLE_RX);
2247 }
2248 rtw_hal_get_def_var(padapter, HAL_DEF_TX_LDPC, (u8 *)&bHwLDPCSupport);
2249 if (bHwLDPCSupport) {
2250 if (TEST_FLAG(pregistrypriv->ldpc_cap, BIT5))
2251 SET_FLAG(phtpriv->ldpc_cap, LDPC_HT_ENABLE_TX);
2252 }
2253
2254 /* STBC */
2255 rtw_hal_get_def_var(padapter, HAL_DEF_TX_STBC, (u8 *)&bHwSTBCSupport);
2256 CLEAR_FLAGS(phtpriv->stbc_cap);
2257 if (bHwSTBCSupport) {
2258 if (TEST_FLAG(pregistrypriv->stbc_cap, BIT5))
2259 SET_FLAG(phtpriv->stbc_cap, STBC_HT_ENABLE_TX);
2260 }
2261 rtw_hal_get_def_var(padapter, HAL_DEF_RX_STBC, (u8 *)&bHwSTBCSupport);
2262 if (bHwSTBCSupport) {
2263 if (TEST_FLAG(pregistrypriv->stbc_cap, BIT4))
2264 SET_FLAG(phtpriv->stbc_cap, STBC_HT_ENABLE_RX);
2265 }
2266
2267 /* Beamforming setting */
2268 rtw_hal_get_def_var(padapter, HAL_DEF_EXPLICIT_BEAMFORMER, (u8 *)&bHwSupportBeamformer);
2269 rtw_hal_get_def_var(padapter, HAL_DEF_EXPLICIT_BEAMFORMEE, (u8 *)&bHwSupportBeamformee);
2270 CLEAR_FLAGS(phtpriv->beamform_cap);
2271 if (TEST_FLAG(pregistrypriv->beamform_cap, BIT4) && bHwSupportBeamformer)
2272 SET_FLAG(phtpriv->beamform_cap, BEAMFORMING_HT_BEAMFORMER_ENABLE);
2273
2274 if (TEST_FLAG(pregistrypriv->beamform_cap, BIT5) && bHwSupportBeamformee)
2275 SET_FLAG(phtpriv->beamform_cap, BEAMFORMING_HT_BEAMFORMEE_ENABLE);
2276 }
2277
rtw_build_wmm_ie_ht(struct adapter * padapter,u8 * out_ie,uint * pout_len)2278 void rtw_build_wmm_ie_ht(struct adapter *padapter, u8 *out_ie, uint *pout_len)
2279 {
2280 unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
2281 int out_len;
2282
2283 if (padapter->mlmepriv.qospriv.qos_option == 0) {
2284 out_len = *pout_len;
2285 rtw_set_ie(out_ie + out_len, WLAN_EID_VENDOR_SPECIFIC,
2286 _WMM_IE_Length_, WMM_IE, pout_len);
2287
2288 padapter->mlmepriv.qospriv.qos_option = 1;
2289 }
2290 }
2291
2292 /* the function is >= passive_level */
rtw_restructure_ht_ie(struct adapter * padapter,u8 * in_ie,u8 * out_ie,uint in_len,uint * pout_len,u8 channel)2293 unsigned int rtw_restructure_ht_ie(struct adapter *padapter, u8 *in_ie, u8 *out_ie, uint in_len, uint *pout_len, u8 channel)
2294 {
2295 u32 ielen, out_len;
2296 enum ieee80211_max_ampdu_length_exp max_rx_ampdu_factor;
2297 unsigned char *p;
2298 struct ieee80211_ht_cap ht_capie;
2299 u8 cbw40_enable = 0, stbc_rx_enable = 0, operation_bw = 0;
2300 struct registry_priv *pregistrypriv = &padapter->registrypriv;
2301 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2302 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
2303 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
2304
2305 phtpriv->ht_option = false;
2306
2307 out_len = *pout_len;
2308
2309 memset(&ht_capie, 0, sizeof(struct ieee80211_ht_cap));
2310
2311 ht_capie.cap_info = cpu_to_le16(IEEE80211_HT_CAP_DSSSCCK40);
2312
2313 if (phtpriv->sgi_20m)
2314 ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_SGI_20);
2315
2316 /* Get HT BW */
2317 if (!in_ie) {
2318 /* TDLS: TODO 20/40 issue */
2319 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
2320 operation_bw = padapter->mlmeextpriv.cur_bwmode;
2321 if (operation_bw > CHANNEL_WIDTH_40)
2322 operation_bw = CHANNEL_WIDTH_40;
2323 } else
2324 /* TDLS: TODO 40? */
2325 operation_bw = CHANNEL_WIDTH_40;
2326 } else {
2327 p = rtw_get_ie(in_ie, WLAN_EID_HT_OPERATION, &ielen, in_len);
2328 if (p && (ielen == sizeof(struct ieee80211_ht_addt_info))) {
2329 struct HT_info_element *pht_info = (struct HT_info_element *)(p + 2);
2330
2331 if (pht_info->infos[0] & BIT(2)) {
2332 switch (pht_info->infos[0] & 0x3) {
2333 case 1:
2334 case 3:
2335 operation_bw = CHANNEL_WIDTH_40;
2336 break;
2337 default:
2338 operation_bw = CHANNEL_WIDTH_20;
2339 break;
2340 }
2341 } else {
2342 operation_bw = CHANNEL_WIDTH_20;
2343 }
2344 }
2345 }
2346
2347 /* to disable 40M Hz support while gd_bw_40MHz_en = 0 */
2348 if ((pregistrypriv->bw_mode & 0x0f) > 0)
2349 cbw40_enable = 1;
2350
2351 if ((cbw40_enable == 1) && (operation_bw == CHANNEL_WIDTH_40)) {
2352 ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH);
2353 if (phtpriv->sgi_40m)
2354 ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_SGI_40);
2355 }
2356
2357 if (TEST_FLAG(phtpriv->stbc_cap, STBC_HT_ENABLE_TX))
2358 ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_TX_STBC);
2359
2360 /* todo: disable SM power save mode */
2361 ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_SM_PS);
2362
2363 if (TEST_FLAG(phtpriv->stbc_cap, STBC_HT_ENABLE_RX)) {
2364 if ((channel <= 14 && pregistrypriv->rx_stbc == 0x1) || /* enable for 2.4GHz */
2365 (pregistrypriv->wifi_spec == 1))
2366 stbc_rx_enable = 1;
2367 }
2368
2369 /* fill default supported_mcs_set */
2370 memcpy(&ht_capie.mcs, pmlmeext->default_supported_mcs_set, 16);
2371
2372 /* update default supported_mcs_set */
2373 if (stbc_rx_enable)
2374 ht_capie.cap_info |= cpu_to_le16(IEEE80211_HT_CAP_RX_STBC_1R);/* RX STBC One spatial stream */
2375
2376 set_mcs_rate_by_mask(ht_capie.mcs.rx_mask, MCS_RATE_1R);
2377
2378 {
2379 u32 rx_packet_offset, max_recvbuf_sz;
2380
2381 rtw_hal_get_def_var(padapter, HAL_DEF_RX_PACKET_OFFSET, &rx_packet_offset);
2382 rtw_hal_get_def_var(padapter, HAL_DEF_MAX_RECVBUF_SZ, &max_recvbuf_sz);
2383 }
2384
2385 if (padapter->driver_rx_ampdu_factor != 0xFF)
2386 max_rx_ampdu_factor =
2387 (enum ieee80211_max_ampdu_length_exp)padapter->driver_rx_ampdu_factor;
2388 else
2389 rtw_hal_get_def_var(padapter, HW_VAR_MAX_RX_AMPDU_FACTOR,
2390 &max_rx_ampdu_factor);
2391
2392 ht_capie.ampdu_params_info = (max_rx_ampdu_factor & 0x03);
2393
2394 if (padapter->securitypriv.dot11PrivacyAlgrthm == _AES_)
2395 ht_capie.ampdu_params_info |= (IEEE80211_HT_CAP_AMPDU_DENSITY & (0x07 << 2));
2396 else
2397 ht_capie.ampdu_params_info |= (IEEE80211_HT_CAP_AMPDU_DENSITY & 0x00);
2398
2399 rtw_set_ie(out_ie + out_len, WLAN_EID_HT_CAPABILITY,
2400 sizeof(struct ieee80211_ht_cap), (unsigned char *)&ht_capie, pout_len);
2401
2402 phtpriv->ht_option = true;
2403
2404 if (in_ie) {
2405 p = rtw_get_ie(in_ie, WLAN_EID_HT_OPERATION, &ielen, in_len);
2406 if (p && (ielen == sizeof(struct ieee80211_ht_addt_info))) {
2407 out_len = *pout_len;
2408 rtw_set_ie(out_ie + out_len, WLAN_EID_HT_OPERATION, ielen, p + 2, pout_len);
2409 }
2410 }
2411
2412 return phtpriv->ht_option;
2413 }
2414
2415 /* the function is > passive_level (in critical_section) */
rtw_update_ht_cap(struct adapter * padapter,u8 * pie,uint ie_len,u8 channel)2416 void rtw_update_ht_cap(struct adapter *padapter, u8 *pie, uint ie_len, u8 channel)
2417 {
2418 u8 *p, max_ampdu_sz;
2419 int len;
2420 struct ieee80211_ht_cap *pht_capie;
2421 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2422 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
2423 struct registry_priv *pregistrypriv = &padapter->registrypriv;
2424 struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
2425 struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
2426 u8 cbw40_enable = 0;
2427
2428 if (!phtpriv->ht_option)
2429 return;
2430
2431 if ((!pmlmeinfo->HT_info_enable) || (!pmlmeinfo->HT_caps_enable))
2432 return;
2433
2434 /* maybe needs check if ap supports rx ampdu. */
2435 if (!(phtpriv->ampdu_enable) && pregistrypriv->ampdu_enable == 1)
2436 phtpriv->ampdu_enable = true;
2437
2438 /* check Max Rx A-MPDU Size */
2439 len = 0;
2440 p = rtw_get_ie(pie + sizeof(struct ndis_802_11_fix_ie), WLAN_EID_HT_CAPABILITY, &len, ie_len - sizeof(struct ndis_802_11_fix_ie));
2441 if (p && len > 0) {
2442 pht_capie = (struct ieee80211_ht_cap *)(p + 2);
2443 max_ampdu_sz = (pht_capie->ampdu_params_info & IEEE80211_HT_CAP_AMPDU_FACTOR);
2444 max_ampdu_sz = 1 << (max_ampdu_sz + 3); /* max_ampdu_sz (kbytes); */
2445
2446 phtpriv->rx_ampdu_maxlen = max_ampdu_sz;
2447 }
2448
2449 len = 0;
2450 p = rtw_get_ie(pie + sizeof(struct ndis_802_11_fix_ie), WLAN_EID_HT_OPERATION, &len, ie_len - sizeof(struct ndis_802_11_fix_ie));
2451 if (p && len > 0) {
2452 /* todo: */
2453 }
2454
2455 if ((pregistrypriv->bw_mode & 0x0f) > 0)
2456 cbw40_enable = 1;
2457
2458 /* update cur_bwmode & cur_ch_offset */
2459 if ((cbw40_enable) &&
2460 (le16_to_cpu(pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info) &
2461 BIT(1)) && (pmlmeinfo->HT_info.infos[0] & BIT(2))) {
2462 int i;
2463
2464 /* update the MCS set */
2465 for (i = 0; i < 16; i++)
2466 pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= pmlmeext->default_supported_mcs_set[i];
2467
2468 /* update the MCS rates */
2469 set_mcs_rate_by_mask(pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate, MCS_RATE_1R);
2470
2471 /* switch to the 40M Hz mode according to the AP */
2472 /* pmlmeext->cur_bwmode = CHANNEL_WIDTH_40; */
2473 switch ((pmlmeinfo->HT_info.infos[0] & 0x3)) {
2474 case EXTCHNL_OFFSET_UPPER:
2475 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_LOWER;
2476 break;
2477
2478 case EXTCHNL_OFFSET_LOWER:
2479 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_UPPER;
2480 break;
2481
2482 default:
2483 pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
2484 break;
2485 }
2486 }
2487
2488 /* */
2489 /* Config SM Power Save setting */
2490 /* */
2491 pmlmeinfo->SM_PS =
2492 (le16_to_cpu(pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info) &
2493 0x0C) >> 2;
2494
2495 /* */
2496 /* Config current HT Protection mode. */
2497 /* */
2498 pmlmeinfo->HT_protection = pmlmeinfo->HT_info.infos[1] & 0x3;
2499 }
2500
rtw_issue_addbareq_cmd(struct adapter * padapter,struct xmit_frame * pxmitframe)2501 void rtw_issue_addbareq_cmd(struct adapter *padapter, struct xmit_frame *pxmitframe)
2502 {
2503 u8 issued;
2504 int priority;
2505 struct sta_info *psta;
2506 struct ht_priv *phtpriv;
2507 struct pkt_attrib *pattrib = &pxmitframe->attrib;
2508 s32 bmcst = is_multicast_ether_addr(pattrib->ra);
2509
2510 /* if (bmcst || (padapter->mlmepriv.LinkDetectInfo.bTxBusyTraffic == false)) */
2511 if (bmcst || (padapter->mlmepriv.LinkDetectInfo.NumTxOkInPeriod < 100))
2512 return;
2513
2514 priority = pattrib->priority;
2515
2516 psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);
2517 if (pattrib->psta != psta)
2518 return;
2519
2520 if (!psta)
2521 return;
2522
2523 if (!(psta->state & _FW_LINKED))
2524 return;
2525
2526 phtpriv = &psta->htpriv;
2527
2528 if (phtpriv->ht_option && phtpriv->ampdu_enable) {
2529 issued = (phtpriv->agg_enable_bitmap >> priority) & 0x1;
2530 issued |= (phtpriv->candidate_tid_bitmap >> priority) & 0x1;
2531
2532 if (issued == 0) {
2533 psta->htpriv.candidate_tid_bitmap |= BIT((u8)priority);
2534 rtw_addbareq_cmd(padapter, (u8) priority, pattrib->ra);
2535 }
2536 }
2537 }
2538
rtw_append_exented_cap(struct adapter * padapter,u8 * out_ie,uint * pout_len)2539 void rtw_append_exented_cap(struct adapter *padapter, u8 *out_ie, uint *pout_len)
2540 {
2541 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2542 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
2543 u8 cap_content[8] = {0};
2544
2545 if (phtpriv->bss_coexist)
2546 SET_EXT_CAPABILITY_ELE_BSS_COEXIST(cap_content, 1);
2547
2548 rtw_set_ie(out_ie + *pout_len, WLAN_EID_EXT_CAPABILITY, 8, cap_content, pout_len);
2549 }
2550
rtw_set_to_roam(struct adapter * adapter,u8 to_roam)2551 inline void rtw_set_to_roam(struct adapter *adapter, u8 to_roam)
2552 {
2553 if (to_roam == 0)
2554 adapter->mlmepriv.to_join = false;
2555 adapter->mlmepriv.to_roam = to_roam;
2556 }
2557
rtw_dec_to_roam(struct adapter * adapter)2558 inline u8 rtw_dec_to_roam(struct adapter *adapter)
2559 {
2560 adapter->mlmepriv.to_roam--;
2561 return adapter->mlmepriv.to_roam;
2562 }
2563
rtw_to_roam(struct adapter * adapter)2564 inline u8 rtw_to_roam(struct adapter *adapter)
2565 {
2566 return adapter->mlmepriv.to_roam;
2567 }
2568
rtw_roaming(struct adapter * padapter,struct wlan_network * tgt_network)2569 void rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
2570 {
2571 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2572
2573 spin_lock_bh(&pmlmepriv->lock);
2574 _rtw_roaming(padapter, tgt_network);
2575 spin_unlock_bh(&pmlmepriv->lock);
2576 }
2577
_rtw_roaming(struct adapter * padapter,struct wlan_network * tgt_network)2578 void _rtw_roaming(struct adapter *padapter, struct wlan_network *tgt_network)
2579 {
2580 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2581 struct wlan_network *cur_network = &pmlmepriv->cur_network;
2582
2583 if (rtw_to_roam(padapter) > 0) {
2584 memcpy(&pmlmepriv->assoc_ssid, &cur_network->network.ssid, sizeof(struct ndis_802_11_ssid));
2585
2586 pmlmepriv->assoc_by_bssid = false;
2587
2588 while (rtw_do_join(padapter) != _SUCCESS) {
2589 rtw_dec_to_roam(padapter);
2590 if (rtw_to_roam(padapter) <= 0) {
2591 rtw_indicate_disconnect(padapter);
2592 break;
2593 }
2594 }
2595 }
2596 }
2597
rtw_linked_check(struct adapter * padapter)2598 signed int rtw_linked_check(struct adapter *padapter)
2599 {
2600 if (check_fwstate(&padapter->mlmepriv, WIFI_AP_STATE) ||
2601 check_fwstate(&padapter->mlmepriv, WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE)) {
2602 if (padapter->stapriv.asoc_sta_count > 2)
2603 return true;
2604 } else { /* Station mode */
2605 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED))
2606 return true;
2607 }
2608 return false;
2609 }
2610