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15#define _RTW_RECV_C_
16
17#include <drv_types.h>
18#include <rtw_debug.h>
19#include <linux/jiffies.h>
20#include <rtw_recv.h>
21
22static u8 SNAP_ETH_TYPE_IPX[2] = {0x81, 0x37};
23static u8 SNAP_ETH_TYPE_APPLETALK_AARP[2] = {0x80, 0xf3};
24
25u8 rtw_rfc1042_header[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
26
27u8 rtw_bridge_tunnel_header[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
28
29static void rtw_signal_stat_timer_hdl(struct timer_list *t);
30
31void _rtw_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv)
32{
33 memset((u8 *)psta_recvpriv, 0, sizeof(struct sta_recv_priv));
34
35 spin_lock_init(&psta_recvpriv->lock);
36
37
38
39
40 _rtw_init_queue(&psta_recvpriv->defrag_q);
41}
42
43sint _rtw_init_recv_priv(struct recv_priv *precvpriv, struct adapter *padapter)
44{
45 sint i;
46 union recv_frame *precvframe;
47 sint res = _SUCCESS;
48
49 spin_lock_init(&precvpriv->lock);
50
51 _rtw_init_queue(&precvpriv->free_recv_queue);
52 _rtw_init_queue(&precvpriv->recv_pending_queue);
53 _rtw_init_queue(&precvpriv->uc_swdec_pending_queue);
54
55 precvpriv->adapter = padapter;
56
57 precvpriv->free_recvframe_cnt = NR_RECVFRAME;
58
59 precvpriv->pallocated_frame_buf = vzalloc(NR_RECVFRAME * sizeof(union recv_frame) + RXFRAME_ALIGN_SZ);
60
61 if (precvpriv->pallocated_frame_buf == NULL) {
62 res = _FAIL;
63 goto exit;
64 }
65
66 precvpriv->precv_frame_buf = (u8 *)N_BYTE_ALIGMENT((SIZE_PTR)(precvpriv->pallocated_frame_buf), RXFRAME_ALIGN_SZ);
67
68
69
70 precvframe = (union recv_frame *) precvpriv->precv_frame_buf;
71
72
73 for (i = 0; i < NR_RECVFRAME; i++) {
74 INIT_LIST_HEAD(&(precvframe->u.list));
75
76 list_add_tail(&(precvframe->u.list), &(precvpriv->free_recv_queue.queue));
77
78 res = rtw_os_recv_resource_alloc(padapter, precvframe);
79
80 precvframe->u.hdr.len = 0;
81
82 precvframe->u.hdr.adapter = padapter;
83 precvframe++;
84
85 }
86
87 res = rtw_hal_init_recv_priv(padapter);
88
89 timer_setup(&precvpriv->signal_stat_timer, rtw_signal_stat_timer_hdl,
90 0);
91
92 precvpriv->signal_stat_sampling_interval = 2000;
93
94 rtw_set_signal_stat_timer(precvpriv);
95
96exit:
97 return res;
98}
99
100void _rtw_free_recv_priv(struct recv_priv *precvpriv)
101{
102 struct adapter *padapter = precvpriv->adapter;
103
104 rtw_free_uc_swdec_pending_queue(padapter);
105
106 rtw_os_recv_resource_free(precvpriv);
107
108 if (precvpriv->pallocated_frame_buf)
109 vfree(precvpriv->pallocated_frame_buf);
110
111 rtw_hal_free_recv_priv(padapter);
112}
113
114union recv_frame *_rtw_alloc_recvframe(struct __queue *pfree_recv_queue)
115{
116
117 union recv_frame *precvframe;
118 struct list_head *plist, *phead;
119 struct adapter *padapter;
120 struct recv_priv *precvpriv;
121
122 if (list_empty(&pfree_recv_queue->queue))
123 precvframe = NULL;
124 else{
125 phead = get_list_head(pfree_recv_queue);
126
127 plist = get_next(phead);
128
129 precvframe = (union recv_frame *)plist;
130
131 list_del_init(&precvframe->u.hdr.list);
132 padapter = precvframe->u.hdr.adapter;
133 if (padapter != NULL) {
134 precvpriv = &padapter->recvpriv;
135 if (pfree_recv_queue == &precvpriv->free_recv_queue)
136 precvpriv->free_recvframe_cnt--;
137 }
138 }
139 return precvframe;
140}
141
142union recv_frame *rtw_alloc_recvframe(struct __queue *pfree_recv_queue)
143{
144 union recv_frame *precvframe;
145
146 spin_lock_bh(&pfree_recv_queue->lock);
147
148 precvframe = _rtw_alloc_recvframe(pfree_recv_queue);
149
150 spin_unlock_bh(&pfree_recv_queue->lock);
151
152 return precvframe;
153}
154
155int rtw_free_recvframe(union recv_frame *precvframe, struct __queue *pfree_recv_queue)
156{
157 struct adapter *padapter = precvframe->u.hdr.adapter;
158 struct recv_priv *precvpriv = &padapter->recvpriv;
159
160 rtw_os_free_recvframe(precvframe);
161
162
163 spin_lock_bh(&pfree_recv_queue->lock);
164
165 list_del_init(&(precvframe->u.hdr.list));
166
167 precvframe->u.hdr.len = 0;
168
169 list_add_tail(&(precvframe->u.hdr.list), get_list_head(pfree_recv_queue));
170
171 if (padapter != NULL) {
172 if (pfree_recv_queue == &precvpriv->free_recv_queue)
173 precvpriv->free_recvframe_cnt++;
174 }
175 spin_unlock_bh(&pfree_recv_queue->lock);
176 return _SUCCESS;
177}
178
179
180
181
182sint _rtw_enqueue_recvframe(union recv_frame *precvframe, struct __queue *queue)
183{
184
185 struct adapter *padapter = precvframe->u.hdr.adapter;
186 struct recv_priv *precvpriv = &padapter->recvpriv;
187
188
189 list_del_init(&(precvframe->u.hdr.list));
190
191
192 list_add_tail(&(precvframe->u.hdr.list), get_list_head(queue));
193
194 if (padapter != NULL)
195 if (queue == &precvpriv->free_recv_queue)
196 precvpriv->free_recvframe_cnt++;
197
198 return _SUCCESS;
199}
200
201sint rtw_enqueue_recvframe(union recv_frame *precvframe, struct __queue *queue)
202{
203 sint ret;
204
205
206 spin_lock_bh(&queue->lock);
207 ret = _rtw_enqueue_recvframe(precvframe, queue);
208
209 spin_unlock_bh(&queue->lock);
210
211 return ret;
212}
213
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230
231
232void rtw_free_recvframe_queue(struct __queue *pframequeue, struct __queue *pfree_recv_queue)
233{
234 union recv_frame *precvframe;
235 struct list_head *plist, *phead;
236
237 spin_lock(&pframequeue->lock);
238
239 phead = get_list_head(pframequeue);
240 plist = get_next(phead);
241
242 while (phead != plist) {
243 precvframe = (union recv_frame *)plist;
244
245 plist = get_next(plist);
246
247 rtw_free_recvframe(precvframe, pfree_recv_queue);
248 }
249
250 spin_unlock(&pframequeue->lock);
251}
252
253u32 rtw_free_uc_swdec_pending_queue(struct adapter *adapter)
254{
255 u32 cnt = 0;
256 union recv_frame *pending_frame;
257 while ((pending_frame = rtw_alloc_recvframe(&adapter->recvpriv.uc_swdec_pending_queue))) {
258 rtw_free_recvframe(pending_frame, &adapter->recvpriv.free_recv_queue);
259 cnt++;
260 }
261
262 if (cnt)
263 DBG_871X(FUNC_ADPT_FMT" dequeue %d\n", FUNC_ADPT_ARG(adapter), cnt);
264
265 return cnt;
266}
267
268
269sint rtw_enqueue_recvbuf_to_head(struct recv_buf *precvbuf, struct __queue *queue)
270{
271 spin_lock_bh(&queue->lock);
272
273 list_del_init(&precvbuf->list);
274 list_add(&precvbuf->list, get_list_head(queue));
275
276 spin_unlock_bh(&queue->lock);
277
278 return _SUCCESS;
279}
280
281sint rtw_enqueue_recvbuf(struct recv_buf *precvbuf, struct __queue *queue)
282{
283 spin_lock_bh(&queue->lock);
284
285 list_del_init(&precvbuf->list);
286
287 list_add_tail(&precvbuf->list, get_list_head(queue));
288 spin_unlock_bh(&queue->lock);
289 return _SUCCESS;
290
291}
292
293struct recv_buf *rtw_dequeue_recvbuf(struct __queue *queue)
294{
295 struct recv_buf *precvbuf;
296 struct list_head *plist, *phead;
297
298 spin_lock_bh(&queue->lock);
299
300 if (list_empty(&queue->queue))
301 precvbuf = NULL;
302 else{
303 phead = get_list_head(queue);
304
305 plist = get_next(phead);
306
307 precvbuf = LIST_CONTAINOR(plist, struct recv_buf, list);
308
309 list_del_init(&precvbuf->list);
310
311 }
312
313 spin_unlock_bh(&queue->lock);
314
315 return precvbuf;
316
317}
318
319sint recvframe_chkmic(struct adapter *adapter, union recv_frame *precvframe);
320sint recvframe_chkmic(struct adapter *adapter, union recv_frame *precvframe)
321{
322
323 sint i, res = _SUCCESS;
324 u32 datalen;
325 u8 miccode[8];
326 u8 bmic_err = false, brpt_micerror = true;
327 u8 *pframe, *payload, *pframemic;
328 u8 *mickey;
329
330 struct sta_info *stainfo;
331 struct rx_pkt_attrib *prxattrib = &precvframe->u.hdr.attrib;
332 struct security_priv *psecuritypriv = &adapter->securitypriv;
333
334 struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
335 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
336
337 stainfo = rtw_get_stainfo(&adapter->stapriv, &prxattrib->ta[0]);
338
339 if (prxattrib->encrypt == _TKIP_) {
340 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n recvframe_chkmic:prxattrib->encrypt == _TKIP_\n"));
341 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n recvframe_chkmic:da = 0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x\n",
342 prxattrib->ra[0], prxattrib->ra[1], prxattrib->ra[2], prxattrib->ra[3], prxattrib->ra[4], prxattrib->ra[5]));
343
344
345 if (stainfo != NULL) {
346 if (IS_MCAST(prxattrib->ra)) {
347
348
349
350 mickey = &psecuritypriv->dot118021XGrprxmickey[prxattrib->key_index].skey[0];
351
352 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n recvframe_chkmic: bcmc key\n"));
353
354
355
356 if (psecuritypriv->binstallGrpkey == false) {
357 res = _FAIL;
358 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n recvframe_chkmic:didn't install group key!!!!!!!!!!\n"));
359 DBG_871X("\n recvframe_chkmic:didn't install group key!!!!!!!!!!\n");
360 goto exit;
361 }
362 } else {
363 mickey = &stainfo->dot11tkiprxmickey.skey[0];
364 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n recvframe_chkmic: unicast key\n"));
365 }
366
367 datalen = precvframe->u.hdr.len-prxattrib->hdrlen-prxattrib->iv_len-prxattrib->icv_len-8;
368 pframe = precvframe->u.hdr.rx_data;
369 payload = pframe+prxattrib->hdrlen+prxattrib->iv_len;
370
371 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n prxattrib->iv_len =%d prxattrib->icv_len =%d\n", prxattrib->iv_len, prxattrib->icv_len));
372
373
374 rtw_seccalctkipmic(mickey, pframe, payload, datalen, &miccode[0], (unsigned char)prxattrib->priority);
375
376 pframemic = payload+datalen;
377
378 bmic_err = false;
379
380 for (i = 0; i < 8; i++) {
381 if (miccode[i] != *(pframemic+i)) {
382 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvframe_chkmic:miccode[%d](%02x) != *(pframemic+%d)(%02x) ", i, miccode[i], i, *(pframemic+i)));
383 bmic_err = true;
384 }
385 }
386
387
388 if (bmic_err == true) {
389
390 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n *(pframemic-8)-*(pframemic-1) = 0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x\n",
391 *(pframemic-8), *(pframemic-7), *(pframemic-6), *(pframemic-5), *(pframemic-4), *(pframemic-3), *(pframemic-2), *(pframemic-1)));
392 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n *(pframemic-16)-*(pframemic-9) = 0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x\n",
393 *(pframemic-16), *(pframemic-15), *(pframemic-14), *(pframemic-13), *(pframemic-12), *(pframemic-11), *(pframemic-10), *(pframemic-9)));
394
395 {
396 uint i;
397 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n ======demp packet (len =%d) ======\n", precvframe->u.hdr.len));
398 for (i = 0; i < precvframe->u.hdr.len; i = i+8) {
399 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x",
400 *(precvframe->u.hdr.rx_data+i), *(precvframe->u.hdr.rx_data+i+1),
401 *(precvframe->u.hdr.rx_data+i+2), *(precvframe->u.hdr.rx_data+i+3),
402 *(precvframe->u.hdr.rx_data+i+4), *(precvframe->u.hdr.rx_data+i+5),
403 *(precvframe->u.hdr.rx_data+i+6), *(precvframe->u.hdr.rx_data+i+7)));
404 }
405 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n ======demp packet end [len =%d]======\n", precvframe->u.hdr.len));
406 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n hrdlen =%d,\n", prxattrib->hdrlen));
407 }
408
409 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("ra = 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x psecuritypriv->binstallGrpkey =%d ",
410 prxattrib->ra[0], prxattrib->ra[1], prxattrib->ra[2],
411 prxattrib->ra[3], prxattrib->ra[4], prxattrib->ra[5], psecuritypriv->binstallGrpkey));
412
413
414
415 if ((IS_MCAST(prxattrib->ra) == true) && (prxattrib->key_index != pmlmeinfo->key_index))
416 brpt_micerror = false;
417
418 if ((prxattrib->bdecrypted == true) && (brpt_micerror == true)) {
419 rtw_handle_tkip_mic_err(adapter, (u8)IS_MCAST(prxattrib->ra));
420 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" mic error :prxattrib->bdecrypted =%d ", prxattrib->bdecrypted));
421 DBG_871X(" mic error :prxattrib->bdecrypted =%d\n", prxattrib->bdecrypted);
422 } else{
423 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" mic error :prxattrib->bdecrypted =%d ", prxattrib->bdecrypted));
424 DBG_871X(" mic error :prxattrib->bdecrypted =%d\n", prxattrib->bdecrypted);
425 }
426
427 res = _FAIL;
428
429 } else {
430
431 if ((psecuritypriv->bcheck_grpkey == false) && (IS_MCAST(prxattrib->ra) == true)) {
432 psecuritypriv->bcheck_grpkey = true;
433 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("psecuritypriv->bcheck_grpkey =true"));
434 }
435 }
436
437 } else
438 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvframe_chkmic: rtw_get_stainfo == NULL!!!\n"));
439
440 recvframe_pull_tail(precvframe, 8);
441
442 }
443
444exit:
445 return res;
446
447}
448
449
450union recv_frame *decryptor(struct adapter *padapter, union recv_frame *precv_frame);
451union recv_frame *decryptor(struct adapter *padapter, union recv_frame *precv_frame)
452{
453
454 struct rx_pkt_attrib *prxattrib = &precv_frame->u.hdr.attrib;
455 struct security_priv *psecuritypriv = &padapter->securitypriv;
456 union recv_frame *return_packet = precv_frame;
457 u32 res = _SUCCESS;
458
459 DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt);
460
461 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("prxstat->decrypted =%x prxattrib->encrypt = 0x%03x\n", prxattrib->bdecrypted, prxattrib->encrypt));
462
463 if (prxattrib->encrypt > 0) {
464 u8 *iv = precv_frame->u.hdr.rx_data+prxattrib->hdrlen;
465 prxattrib->key_index = (((iv[3])>>6)&0x3);
466
467 if (prxattrib->key_index > WEP_KEYS) {
468 DBG_871X("prxattrib->key_index(%d) > WEP_KEYS\n", prxattrib->key_index);
469
470 switch (prxattrib->encrypt) {
471 case _WEP40_:
472 case _WEP104_:
473 prxattrib->key_index = psecuritypriv->dot11PrivacyKeyIndex;
474 break;
475 case _TKIP_:
476 case _AES_:
477 default:
478 prxattrib->key_index = psecuritypriv->dot118021XGrpKeyid;
479 break;
480 }
481 }
482 }
483
484 if ((prxattrib->encrypt > 0) && ((prxattrib->bdecrypted == 0) || (psecuritypriv->sw_decrypt == true))) {
485 psecuritypriv->hw_decrypted = false;
486
487 #ifdef DBG_RX_DECRYPTOR
488 DBG_871X("[%s] %d:prxstat->bdecrypted:%d, prxattrib->encrypt:%d, Setting psecuritypriv->hw_decrypted = %d\n",
489 __func__,
490 __LINE__,
491 prxattrib->bdecrypted,
492 prxattrib->encrypt,
493 psecuritypriv->hw_decrypted);
494 #endif
495
496 switch (prxattrib->encrypt) {
497 case _WEP40_:
498 case _WEP104_:
499 DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_wep);
500 rtw_wep_decrypt(padapter, (u8 *)precv_frame);
501 break;
502 case _TKIP_:
503 DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_tkip);
504 res = rtw_tkip_decrypt(padapter, (u8 *)precv_frame);
505 break;
506 case _AES_:
507 DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_aes);
508 res = rtw_aes_decrypt(padapter, (u8 *)precv_frame);
509 break;
510 default:
511 break;
512 }
513 } else if (prxattrib->bdecrypted == 1
514 && prxattrib->encrypt > 0
515 && (psecuritypriv->busetkipkey == 1 || prxattrib->encrypt != _TKIP_)
516 ) {
517 DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_hw);
518
519 psecuritypriv->hw_decrypted = true;
520 #ifdef DBG_RX_DECRYPTOR
521 DBG_871X("[%s] %d:prxstat->bdecrypted:%d, prxattrib->encrypt:%d, Setting psecuritypriv->hw_decrypted = %d\n",
522 __func__,
523 __LINE__,
524 prxattrib->bdecrypted,
525 prxattrib->encrypt,
526 psecuritypriv->hw_decrypted);
527
528 #endif
529 } else {
530 DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_unknown);
531 #ifdef DBG_RX_DECRYPTOR
532 DBG_871X("[%s] %d:prxstat->bdecrypted:%d, prxattrib->encrypt:%d, Setting psecuritypriv->hw_decrypted = %d\n",
533 __func__,
534 __LINE__,
535 prxattrib->bdecrypted,
536 prxattrib->encrypt,
537 psecuritypriv->hw_decrypted);
538 #endif
539 }
540
541 if (res == _FAIL) {
542 rtw_free_recvframe(return_packet, &padapter->recvpriv.free_recv_queue);
543 return_packet = NULL;
544 } else
545 prxattrib->bdecrypted = true;
546
547 return return_packet;
548}
549
550
551union recv_frame *portctrl(struct adapter *adapter, union recv_frame *precv_frame);
552union recv_frame *portctrl(struct adapter *adapter, union recv_frame *precv_frame)
553{
554 u8 *psta_addr = NULL;
555 u8 *ptr;
556 uint auth_alg;
557 struct recv_frame_hdr *pfhdr;
558 struct sta_info *psta;
559 struct sta_priv *pstapriv;
560 union recv_frame *prtnframe;
561 u16 ether_type = 0;
562 u16 eapol_type = 0x888e;
563 struct rx_pkt_attrib *pattrib;
564
565 pstapriv = &adapter->stapriv;
566
567 auth_alg = adapter->securitypriv.dot11AuthAlgrthm;
568
569 ptr = get_recvframe_data(precv_frame);
570 pfhdr = &precv_frame->u.hdr;
571 pattrib = &pfhdr->attrib;
572 psta_addr = pattrib->ta;
573
574 prtnframe = NULL;
575
576 psta = rtw_get_stainfo(pstapriv, psta_addr);
577
578 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("########portctrl:adapter->securitypriv.dot11AuthAlgrthm =%d\n", adapter->securitypriv.dot11AuthAlgrthm));
579
580 if (auth_alg == 2) {
581 if ((psta != NULL) && (psta->ieee8021x_blocked)) {
582 __be16 be_tmp;
583
584
585
586 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("########portctrl:psta->ieee8021x_blocked == 1\n"));
587
588 prtnframe = precv_frame;
589
590
591 ptr = ptr+pfhdr->attrib.hdrlen+pfhdr->attrib.iv_len+LLC_HEADER_SIZE;
592 memcpy(&be_tmp, ptr, 2);
593 ether_type = ntohs(be_tmp);
594
595 if (ether_type == eapol_type)
596 prtnframe = precv_frame;
597 else {
598
599 rtw_free_recvframe(precv_frame, &adapter->recvpriv.free_recv_queue);
600 prtnframe = NULL;
601 }
602 } else{
603
604
605 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("########portctrl:psta->ieee8021x_blocked == 0\n"));
606 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("portctrl:precv_frame->hdr.attrib.privacy =%x\n", precv_frame->u.hdr.attrib.privacy));
607
608 if (pattrib->bdecrypted == 0)
609 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("portctrl:prxstat->decrypted =%x\n", pattrib->bdecrypted));
610
611 prtnframe = precv_frame;
612
613
614
615
616
617
618
619
620
621
622 }
623 } else
624 prtnframe = precv_frame;
625
626 return prtnframe;
627}
628
629sint recv_decache(union recv_frame *precv_frame, u8 bretry, struct stainfo_rxcache *prxcache);
630sint recv_decache(union recv_frame *precv_frame, u8 bretry, struct stainfo_rxcache *prxcache)
631{
632 sint tid = precv_frame->u.hdr.attrib.priority;
633
634 u16 seq_ctrl = ((precv_frame->u.hdr.attrib.seq_num&0xffff) << 4) |
635 (precv_frame->u.hdr.attrib.frag_num & 0xf);
636
637 if (tid > 15) {
638 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("recv_decache, (tid>15)! seq_ctrl = 0x%x, tid = 0x%x\n", seq_ctrl, tid));
639
640 return _FAIL;
641 }
642
643 if (1) {
644 if (seq_ctrl == prxcache->tid_rxseq[tid]) {
645 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("recv_decache, seq_ctrl = 0x%x, tid = 0x%x, tid_rxseq = 0x%x\n", seq_ctrl, tid, prxcache->tid_rxseq[tid]));
646
647 return _FAIL;
648 }
649 }
650
651 prxcache->tid_rxseq[tid] = seq_ctrl;
652
653 return _SUCCESS;
654
655}
656
657void process_pwrbit_data(struct adapter *padapter, union recv_frame *precv_frame);
658void process_pwrbit_data(struct adapter *padapter, union recv_frame *precv_frame)
659{
660 unsigned char pwrbit;
661 u8 *ptr = precv_frame->u.hdr.rx_data;
662 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
663 struct sta_priv *pstapriv = &padapter->stapriv;
664 struct sta_info *psta = NULL;
665
666 psta = rtw_get_stainfo(pstapriv, pattrib->src);
667
668 pwrbit = GetPwrMgt(ptr);
669
670 if (psta) {
671 if (pwrbit) {
672 if (!(psta->state & WIFI_SLEEP_STATE)) {
673
674
675
676 stop_sta_xmit(padapter, psta);
677
678
679 }
680 } else{
681 if (psta->state & WIFI_SLEEP_STATE) {
682
683
684
685 wakeup_sta_to_xmit(padapter, psta);
686
687
688 }
689 }
690
691 }
692}
693
694void process_wmmps_data(struct adapter *padapter, union recv_frame *precv_frame);
695void process_wmmps_data(struct adapter *padapter, union recv_frame *precv_frame)
696{
697 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
698 struct sta_priv *pstapriv = &padapter->stapriv;
699 struct sta_info *psta = NULL;
700
701 psta = rtw_get_stainfo(pstapriv, pattrib->src);
702
703 if (!psta)
704 return;
705
706 if (!psta->qos_option)
707 return;
708
709 if (!(psta->qos_info&0xf))
710 return;
711
712 if (psta->state&WIFI_SLEEP_STATE) {
713 u8 wmmps_ac = 0;
714
715 switch (pattrib->priority) {
716 case 1:
717 case 2:
718 wmmps_ac = psta->uapsd_bk&BIT(1);
719 break;
720 case 4:
721 case 5:
722 wmmps_ac = psta->uapsd_vi&BIT(1);
723 break;
724 case 6:
725 case 7:
726 wmmps_ac = psta->uapsd_vo&BIT(1);
727 break;
728 case 0:
729 case 3:
730 default:
731 wmmps_ac = psta->uapsd_be&BIT(1);
732 break;
733 }
734
735 if (wmmps_ac) {
736 if (psta->sleepq_ac_len > 0)
737
738 xmit_delivery_enabled_frames(padapter, psta);
739 else
740
741 issue_qos_nulldata(padapter, psta->hwaddr, (u16)pattrib->priority, 0, 0);
742 }
743 }
744}
745
746void count_rx_stats(struct adapter *padapter, union recv_frame *prframe, struct sta_info *sta);
747void count_rx_stats(struct adapter *padapter, union recv_frame *prframe, struct sta_info *sta)
748{
749 int sz;
750 struct sta_info *psta = NULL;
751 struct stainfo_stats *pstats = NULL;
752 struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib;
753 struct recv_priv *precvpriv = &padapter->recvpriv;
754
755 sz = get_recvframe_len(prframe);
756 precvpriv->rx_bytes += sz;
757
758 padapter->mlmepriv.LinkDetectInfo.NumRxOkInPeriod++;
759
760 if ((!MacAddr_isBcst(pattrib->dst)) && (!IS_MCAST(pattrib->dst))) {
761 padapter->mlmepriv.LinkDetectInfo.NumRxUnicastOkInPeriod++;
762 }
763
764 if (sta)
765 psta = sta;
766 else
767 psta = prframe->u.hdr.psta;
768
769 if (psta) {
770 pstats = &psta->sta_stats;
771
772 pstats->rx_data_pkts++;
773 pstats->rx_bytes += sz;
774 }
775
776 traffic_check_for_leave_lps(padapter, false, 0);
777}
778
779sint sta2sta_data_frame(
780 struct adapter *adapter,
781 union recv_frame *precv_frame,
782 struct sta_info **psta
783);
784sint sta2sta_data_frame(
785 struct adapter *adapter,
786 union recv_frame *precv_frame,
787 struct sta_info **psta
788)
789{
790 u8 *ptr = precv_frame->u.hdr.rx_data;
791 sint ret = _SUCCESS;
792 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
793 struct sta_priv *pstapriv = &adapter->stapriv;
794 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
795 u8 *mybssid = get_bssid(pmlmepriv);
796 u8 *myhwaddr = myid(&adapter->eeprompriv);
797 u8 *sta_addr = NULL;
798 sint bmcast = IS_MCAST(pattrib->dst);
799
800
801
802 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) ||
803 (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true)) {
804
805
806 if (!memcmp(myhwaddr, pattrib->src, ETH_ALEN)) {
807 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" SA ==myself\n"));
808 ret = _FAIL;
809 goto exit;
810 }
811
812 if ((memcmp(myhwaddr, pattrib->dst, ETH_ALEN)) && (!bmcast)) {
813 ret = _FAIL;
814 goto exit;
815 }
816
817 if (!memcmp(pattrib->bssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
818 !memcmp(mybssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
819 (memcmp(pattrib->bssid, mybssid, ETH_ALEN))) {
820 ret = _FAIL;
821 goto exit;
822 }
823
824 sta_addr = pattrib->src;
825
826 } else if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
827
828 if (memcmp(pattrib->bssid, pattrib->src, ETH_ALEN)) {
829 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("bssid != TA under STATION_MODE; drop pkt\n"));
830 ret = _FAIL;
831 goto exit;
832 }
833
834 sta_addr = pattrib->bssid;
835 } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) {
836 if (bmcast) {
837
838 if (!IS_MCAST(pattrib->bssid)) {
839 ret = _FAIL;
840 goto exit;
841 }
842 } else{
843
844 if (memcmp(pattrib->bssid, pattrib->dst, ETH_ALEN)) {
845 ret = _FAIL;
846 goto exit;
847 }
848
849 sta_addr = pattrib->src;
850 }
851
852 } else if (check_fwstate(pmlmepriv, WIFI_MP_STATE) == true) {
853 memcpy(pattrib->dst, GetAddr1Ptr(ptr), ETH_ALEN);
854 memcpy(pattrib->src, GetAddr2Ptr(ptr), ETH_ALEN);
855 memcpy(pattrib->bssid, GetAddr3Ptr(ptr), ETH_ALEN);
856 memcpy(pattrib->ra, pattrib->dst, ETH_ALEN);
857 memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
858
859 sta_addr = mybssid;
860 } else
861 ret = _FAIL;
862
863
864
865 if (bmcast)
866 *psta = rtw_get_bcmc_stainfo(adapter);
867 else
868 *psta = rtw_get_stainfo(pstapriv, sta_addr);
869
870 if (*psta == NULL) {
871 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("can't get psta under sta2sta_data_frame ; drop pkt\n"));
872 ret = _FAIL;
873 goto exit;
874 }
875
876exit:
877 return ret;
878}
879
880sint ap2sta_data_frame(
881 struct adapter *adapter,
882 union recv_frame *precv_frame,
883 struct sta_info **psta);
884sint ap2sta_data_frame(
885 struct adapter *adapter,
886 union recv_frame *precv_frame,
887 struct sta_info **psta)
888{
889 u8 *ptr = precv_frame->u.hdr.rx_data;
890 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
891 sint ret = _SUCCESS;
892 struct sta_priv *pstapriv = &adapter->stapriv;
893 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
894 u8 *mybssid = get_bssid(pmlmepriv);
895 u8 *myhwaddr = myid(&adapter->eeprompriv);
896 sint bmcast = IS_MCAST(pattrib->dst);
897
898 if ((check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true)
899 && (check_fwstate(pmlmepriv, _FW_LINKED) == true
900 || check_fwstate(pmlmepriv, _FW_UNDER_LINKING) == true)
901 ) {
902
903
904 if (!memcmp(myhwaddr, pattrib->src, ETH_ALEN)) {
905 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" SA ==myself\n"));
906 #ifdef DBG_RX_DROP_FRAME
907 DBG_871X("DBG_RX_DROP_FRAME %s SA ="MAC_FMT", myhwaddr ="MAC_FMT"\n",
908 __func__, MAC_ARG(pattrib->src), MAC_ARG(myhwaddr));
909 #endif
910 ret = _FAIL;
911 goto exit;
912 }
913
914
915 if ((memcmp(myhwaddr, pattrib->dst, ETH_ALEN)) && (!bmcast)) {
916 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
917 (" ap2sta_data_frame: compare DA fail; DA ="MAC_FMT"\n", MAC_ARG(pattrib->dst)));
918 #ifdef DBG_RX_DROP_FRAME
919 DBG_871X("DBG_RX_DROP_FRAME %s DA ="MAC_FMT"\n", __func__, MAC_ARG(pattrib->dst));
920 #endif
921 ret = _FAIL;
922 goto exit;
923 }
924
925
926
927 if (!memcmp(pattrib->bssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
928 !memcmp(mybssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
929 (memcmp(pattrib->bssid, mybssid, ETH_ALEN))) {
930 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
931 (" ap2sta_data_frame: compare BSSID fail ; BSSID ="MAC_FMT"\n", MAC_ARG(pattrib->bssid)));
932 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("mybssid ="MAC_FMT"\n", MAC_ARG(mybssid)));
933 #ifdef DBG_RX_DROP_FRAME
934 DBG_871X("DBG_RX_DROP_FRAME %s BSSID ="MAC_FMT", mybssid ="MAC_FMT"\n",
935 __func__, MAC_ARG(pattrib->bssid), MAC_ARG(mybssid));
936 DBG_871X("this adapter = %d, buddy adapter = %d\n", adapter->adapter_type, adapter->pbuddystruct adapter->adapter_type);
937 #endif
938
939 if (!bmcast) {
940 DBG_871X("issue_deauth to the nonassociated ap =" MAC_FMT " for the reason(7)\n", MAC_ARG(pattrib->bssid));
941 issue_deauth(adapter, pattrib->bssid, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
942 }
943
944 ret = _FAIL;
945 goto exit;
946 }
947
948 if (bmcast)
949 *psta = rtw_get_bcmc_stainfo(adapter);
950 else
951 *psta = rtw_get_stainfo(pstapriv, pattrib->bssid);
952
953 if (*psta == NULL) {
954 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("ap2sta: can't get psta under STATION_MODE ; drop pkt\n"));
955 #ifdef DBG_RX_DROP_FRAME
956 DBG_871X("DBG_RX_DROP_FRAME %s can't get psta under STATION_MODE ; drop pkt\n", __func__);
957 #endif
958 ret = _FAIL;
959 goto exit;
960 }
961
962 if ((GetFrameSubType(ptr) & WIFI_QOS_DATA_TYPE) == WIFI_QOS_DATA_TYPE) {
963 }
964
965 if (GetFrameSubType(ptr) & BIT(6)) {
966
967 count_rx_stats(adapter, precv_frame, *psta);
968 ret = RTW_RX_HANDLED;
969 goto exit;
970 }
971
972 } else if ((check_fwstate(pmlmepriv, WIFI_MP_STATE) == true) &&
973 (check_fwstate(pmlmepriv, _FW_LINKED) == true)) {
974 memcpy(pattrib->dst, GetAddr1Ptr(ptr), ETH_ALEN);
975 memcpy(pattrib->src, GetAddr2Ptr(ptr), ETH_ALEN);
976 memcpy(pattrib->bssid, GetAddr3Ptr(ptr), ETH_ALEN);
977 memcpy(pattrib->ra, pattrib->dst, ETH_ALEN);
978 memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
979
980
981 memcpy(pattrib->bssid, mybssid, ETH_ALEN);
982
983
984 *psta = rtw_get_stainfo(pstapriv, pattrib->bssid);
985 if (*psta == NULL) {
986 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("can't get psta under MP_MODE ; drop pkt\n"));
987 #ifdef DBG_RX_DROP_FRAME
988 DBG_871X("DBG_RX_DROP_FRAME %s can't get psta under WIFI_MP_STATE ; drop pkt\n", __func__);
989 #endif
990 ret = _FAIL;
991 goto exit;
992 }
993
994
995 } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) {
996
997 ret = RTW_RX_HANDLED;
998 goto exit;
999 } else{
1000 if (!memcmp(myhwaddr, pattrib->dst, ETH_ALEN) && (!bmcast)) {
1001 *psta = rtw_get_stainfo(pstapriv, pattrib->bssid);
1002 if (*psta == NULL) {
1003
1004
1005 static unsigned long send_issue_deauth_time;
1006
1007
1008
1009 if (jiffies_to_msecs(jiffies - send_issue_deauth_time) > 10000 || send_issue_deauth_time == 0) {
1010 send_issue_deauth_time = jiffies;
1011
1012 DBG_871X("issue_deauth to the ap =" MAC_FMT " for the reason(7)\n", MAC_ARG(pattrib->bssid));
1013
1014 issue_deauth(adapter, pattrib->bssid, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
1015 }
1016 }
1017 }
1018
1019 ret = _FAIL;
1020 #ifdef DBG_RX_DROP_FRAME
1021 DBG_871X("DBG_RX_DROP_FRAME %s fw_state:0x%x\n", __func__, get_fwstate(pmlmepriv));
1022 #endif
1023 }
1024
1025exit:
1026 return ret;
1027}
1028
1029sint sta2ap_data_frame(
1030 struct adapter *adapter,
1031 union recv_frame *precv_frame,
1032 struct sta_info **psta);
1033sint sta2ap_data_frame(
1034 struct adapter *adapter,
1035 union recv_frame *precv_frame,
1036 struct sta_info **psta)
1037{
1038 u8 *ptr = precv_frame->u.hdr.rx_data;
1039 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
1040 struct sta_priv *pstapriv = &adapter->stapriv;
1041 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1042 unsigned char *mybssid = get_bssid(pmlmepriv);
1043 sint ret = _SUCCESS;
1044
1045 if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) {
1046
1047 if (memcmp(pattrib->bssid, mybssid, ETH_ALEN)) {
1048 ret = _FAIL;
1049 goto exit;
1050 }
1051
1052 *psta = rtw_get_stainfo(pstapriv, pattrib->src);
1053 if (*psta == NULL) {
1054 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("can't get psta under AP_MODE; drop pkt\n"));
1055 DBG_871X("issue_deauth to sta =" MAC_FMT " for the reason(7)\n", MAC_ARG(pattrib->src));
1056
1057 issue_deauth(adapter, pattrib->src, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
1058
1059 ret = RTW_RX_HANDLED;
1060 goto exit;
1061 }
1062
1063 process_pwrbit_data(adapter, precv_frame);
1064
1065 if ((GetFrameSubType(ptr) & WIFI_QOS_DATA_TYPE) == WIFI_QOS_DATA_TYPE) {
1066 process_wmmps_data(adapter, precv_frame);
1067 }
1068
1069 if (GetFrameSubType(ptr) & BIT(6)) {
1070
1071 count_rx_stats(adapter, precv_frame, *psta);
1072 ret = RTW_RX_HANDLED;
1073 goto exit;
1074 }
1075 } else {
1076 u8 *myhwaddr = myid(&adapter->eeprompriv);
1077 if (memcmp(pattrib->ra, myhwaddr, ETH_ALEN)) {
1078 ret = RTW_RX_HANDLED;
1079 goto exit;
1080 }
1081 DBG_871X("issue_deauth to sta =" MAC_FMT " for the reason(7)\n", MAC_ARG(pattrib->src));
1082 issue_deauth(adapter, pattrib->src, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
1083 ret = RTW_RX_HANDLED;
1084 goto exit;
1085 }
1086
1087exit:
1088 return ret;
1089}
1090
1091sint validate_recv_ctrl_frame(struct adapter *padapter, union recv_frame *precv_frame);
1092sint validate_recv_ctrl_frame(struct adapter *padapter, union recv_frame *precv_frame)
1093{
1094 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
1095 struct sta_priv *pstapriv = &padapter->stapriv;
1096 u8 *pframe = precv_frame->u.hdr.rx_data;
1097 struct sta_info *psta = NULL;
1098
1099
1100
1101
1102 if (GetFrameType(pframe) != WIFI_CTRL_TYPE)
1103 return _FAIL;
1104
1105
1106 if (memcmp(GetAddr1Ptr(pframe), myid(&padapter->eeprompriv), ETH_ALEN))
1107 return _FAIL;
1108
1109 psta = rtw_get_stainfo(pstapriv, GetAddr2Ptr(pframe));
1110 if (psta == NULL)
1111 return _FAIL;
1112
1113
1114 psta->sta_stats.rx_ctrl_pkts++;
1115
1116
1117 if (GetFrameSubType(pframe) == WIFI_PSPOLL) {
1118 u16 aid;
1119 u8 wmmps_ac = 0;
1120
1121 aid = GetAid(pframe);
1122 if (psta->aid != aid)
1123 return _FAIL;
1124
1125 switch (pattrib->priority) {
1126 case 1:
1127 case 2:
1128 wmmps_ac = psta->uapsd_bk&BIT(0);
1129 break;
1130 case 4:
1131 case 5:
1132 wmmps_ac = psta->uapsd_vi&BIT(0);
1133 break;
1134 case 6:
1135 case 7:
1136 wmmps_ac = psta->uapsd_vo&BIT(0);
1137 break;
1138 case 0:
1139 case 3:
1140 default:
1141 wmmps_ac = psta->uapsd_be&BIT(0);
1142 break;
1143 }
1144
1145 if (wmmps_ac)
1146 return _FAIL;
1147
1148 if (psta->state & WIFI_STA_ALIVE_CHK_STATE) {
1149 DBG_871X("%s alive check-rx ps-poll\n", __func__);
1150 psta->expire_to = pstapriv->expire_to;
1151 psta->state ^= WIFI_STA_ALIVE_CHK_STATE;
1152 }
1153
1154 if ((psta->state&WIFI_SLEEP_STATE) && (pstapriv->sta_dz_bitmap&BIT(psta->aid))) {
1155 struct list_head *xmitframe_plist, *xmitframe_phead;
1156 struct xmit_frame *pxmitframe = NULL;
1157 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1158
1159
1160 spin_lock_bh(&pxmitpriv->lock);
1161
1162 xmitframe_phead = get_list_head(&psta->sleep_q);
1163 xmitframe_plist = get_next(xmitframe_phead);
1164
1165 if (xmitframe_phead != xmitframe_plist) {
1166 pxmitframe = LIST_CONTAINOR(xmitframe_plist, struct xmit_frame, list);
1167
1168 xmitframe_plist = get_next(xmitframe_plist);
1169
1170 list_del_init(&pxmitframe->list);
1171
1172 psta->sleepq_len--;
1173
1174 if (psta->sleepq_len > 0)
1175 pxmitframe->attrib.mdata = 1;
1176 else
1177 pxmitframe->attrib.mdata = 0;
1178
1179 pxmitframe->attrib.triggered = 1;
1180
1181
1182
1183 rtw_hal_xmitframe_enqueue(padapter, pxmitframe);
1184
1185 if (psta->sleepq_len == 0) {
1186 pstapriv->tim_bitmap &= ~BIT(psta->aid);
1187
1188
1189
1190
1191
1192 update_beacon(padapter, _TIM_IE_, NULL, true);
1193 }
1194
1195
1196 spin_unlock_bh(&pxmitpriv->lock);
1197
1198 } else{
1199
1200 spin_unlock_bh(&pxmitpriv->lock);
1201
1202
1203 if (pstapriv->tim_bitmap&BIT(psta->aid)) {
1204 if (psta->sleepq_len == 0) {
1205 DBG_871X("no buffered packets to xmit\n");
1206
1207
1208 issue_nulldata_in_interrupt(padapter, psta->hwaddr);
1209 } else{
1210 DBG_871X("error!psta->sleepq_len =%d\n", psta->sleepq_len);
1211 psta->sleepq_len = 0;
1212 }
1213
1214 pstapriv->tim_bitmap &= ~BIT(psta->aid);
1215
1216
1217
1218 update_beacon(padapter, _TIM_IE_, NULL, true);
1219 }
1220 }
1221 }
1222 }
1223
1224 return _FAIL;
1225
1226}
1227
1228union recv_frame *recvframe_chk_defrag(struct adapter *padapter, union recv_frame *precv_frame);
1229sint validate_recv_mgnt_frame(struct adapter *padapter, union recv_frame *precv_frame);
1230sint validate_recv_mgnt_frame(struct adapter *padapter, union recv_frame *precv_frame)
1231{
1232
1233
1234 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("+validate_recv_mgnt_frame\n"));
1235
1236 precv_frame = recvframe_chk_defrag(padapter, precv_frame);
1237 if (precv_frame == NULL) {
1238 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("%s: fragment packet\n", __func__));
1239 return _SUCCESS;
1240 }
1241
1242 {
1243
1244 struct sta_info *psta = rtw_get_stainfo(&padapter->stapriv, GetAddr2Ptr(precv_frame->u.hdr.rx_data));
1245 if (psta) {
1246 psta->sta_stats.rx_mgnt_pkts++;
1247 if (GetFrameSubType(precv_frame->u.hdr.rx_data) == WIFI_BEACON)
1248 psta->sta_stats.rx_beacon_pkts++;
1249 else if (GetFrameSubType(precv_frame->u.hdr.rx_data) == WIFI_PROBEREQ)
1250 psta->sta_stats.rx_probereq_pkts++;
1251 else if (GetFrameSubType(precv_frame->u.hdr.rx_data) == WIFI_PROBERSP) {
1252 if (!memcmp(padapter->eeprompriv.mac_addr, GetAddr1Ptr(precv_frame->u.hdr.rx_data), ETH_ALEN))
1253 psta->sta_stats.rx_probersp_pkts++;
1254 else if (is_broadcast_mac_addr(GetAddr1Ptr(precv_frame->u.hdr.rx_data))
1255 || is_multicast_mac_addr(GetAddr1Ptr(precv_frame->u.hdr.rx_data)))
1256 psta->sta_stats.rx_probersp_bm_pkts++;
1257 else
1258 psta->sta_stats.rx_probersp_uo_pkts++;
1259 }
1260 }
1261 }
1262
1263 mgt_dispatcher(padapter, precv_frame);
1264
1265 return _SUCCESS;
1266
1267}
1268
1269sint validate_recv_data_frame(struct adapter *adapter, union recv_frame *precv_frame);
1270sint validate_recv_data_frame(struct adapter *adapter, union recv_frame *precv_frame)
1271{
1272 u8 bretry;
1273 u8 *psa, *pda, *pbssid;
1274 struct sta_info *psta = NULL;
1275 u8 *ptr = precv_frame->u.hdr.rx_data;
1276 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
1277 struct security_priv *psecuritypriv = &adapter->securitypriv;
1278 sint ret = _SUCCESS;
1279
1280 bretry = GetRetry(ptr);
1281 pda = get_da(ptr);
1282 psa = get_sa(ptr);
1283 pbssid = get_hdr_bssid(ptr);
1284
1285 if (pbssid == NULL) {
1286 #ifdef DBG_RX_DROP_FRAME
1287 DBG_871X("DBG_RX_DROP_FRAME %s pbssid == NULL\n", __func__);
1288 #endif
1289 ret = _FAIL;
1290 goto exit;
1291 }
1292
1293 memcpy(pattrib->dst, pda, ETH_ALEN);
1294 memcpy(pattrib->src, psa, ETH_ALEN);
1295
1296 memcpy(pattrib->bssid, pbssid, ETH_ALEN);
1297
1298 switch (pattrib->to_fr_ds) {
1299 case 0:
1300 memcpy(pattrib->ra, pda, ETH_ALEN);
1301 memcpy(pattrib->ta, psa, ETH_ALEN);
1302 ret = sta2sta_data_frame(adapter, precv_frame, &psta);
1303 break;
1304
1305 case 1:
1306 memcpy(pattrib->ra, pda, ETH_ALEN);
1307 memcpy(pattrib->ta, pbssid, ETH_ALEN);
1308 ret = ap2sta_data_frame(adapter, precv_frame, &psta);
1309 break;
1310
1311 case 2:
1312 memcpy(pattrib->ra, pbssid, ETH_ALEN);
1313 memcpy(pattrib->ta, psa, ETH_ALEN);
1314 ret = sta2ap_data_frame(adapter, precv_frame, &psta);
1315 break;
1316
1317 case 3:
1318 memcpy(pattrib->ra, GetAddr1Ptr(ptr), ETH_ALEN);
1319 memcpy(pattrib->ta, GetAddr2Ptr(ptr), ETH_ALEN);
1320 ret = _FAIL;
1321 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" case 3\n"));
1322 break;
1323
1324 default:
1325 ret = _FAIL;
1326 break;
1327
1328 }
1329
1330 if (ret == _FAIL) {
1331 #ifdef DBG_RX_DROP_FRAME
1332 DBG_871X("DBG_RX_DROP_FRAME %s case:%d, res:%d\n", __func__, pattrib->to_fr_ds, ret);
1333 #endif
1334 goto exit;
1335 } else if (ret == RTW_RX_HANDLED) {
1336 goto exit;
1337 }
1338
1339
1340 if (psta == NULL) {
1341 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" after to_fr_ds_chk; psta == NULL\n"));
1342 #ifdef DBG_RX_DROP_FRAME
1343 DBG_871X("DBG_RX_DROP_FRAME %s psta == NULL\n", __func__);
1344 #endif
1345 ret = _FAIL;
1346 goto exit;
1347 }
1348
1349
1350
1351 precv_frame->u.hdr.psta = psta;
1352
1353
1354 pattrib->amsdu = 0;
1355 pattrib->ack_policy = 0;
1356
1357 if (pattrib->qos == 1) {
1358 pattrib->priority = GetPriority((ptr + 24));
1359 pattrib->ack_policy = GetAckpolicy((ptr + 24));
1360 pattrib->amsdu = GetAMsdu((ptr + 24));
1361 pattrib->hdrlen = pattrib->to_fr_ds == 3 ? 32 : 26;
1362
1363 if (pattrib->priority != 0 && pattrib->priority != 3)
1364 adapter->recvpriv.bIsAnyNonBEPkts = true;
1365
1366 } else{
1367 pattrib->priority = 0;
1368 pattrib->hdrlen = pattrib->to_fr_ds == 3 ? 30 : 24;
1369 }
1370
1371
1372 if (pattrib->order)
1373 pattrib->hdrlen += 4;
1374
1375 precv_frame->u.hdr.preorder_ctrl = &psta->recvreorder_ctrl[pattrib->priority];
1376
1377
1378 if (recv_decache(precv_frame, bretry, &psta->sta_recvpriv.rxcache) == _FAIL) {
1379 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("decache : drop pkt\n"));
1380 #ifdef DBG_RX_DROP_FRAME
1381 DBG_871X("DBG_RX_DROP_FRAME %s recv_decache return _FAIL\n", __func__);
1382 #endif
1383 ret = _FAIL;
1384 goto exit;
1385 }
1386
1387 if (pattrib->privacy) {
1388
1389 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("validate_recv_data_frame:pattrib->privacy =%x\n", pattrib->privacy));
1390 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n ^^^^^^^^^^^IS_MCAST(pattrib->ra(0x%02x)) =%d^^^^^^^^^^^^^^^6\n", pattrib->ra[0], IS_MCAST(pattrib->ra)));
1391
1392 GET_ENCRY_ALGO(psecuritypriv, psta, pattrib->encrypt, IS_MCAST(pattrib->ra));
1393
1394 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n pattrib->encrypt =%d\n", pattrib->encrypt));
1395
1396 SET_ICE_IV_LEN(pattrib->iv_len, pattrib->icv_len, pattrib->encrypt);
1397 } else{
1398 pattrib->encrypt = 0;
1399 pattrib->iv_len = pattrib->icv_len = 0;
1400 }
1401
1402exit:
1403 return ret;
1404}
1405
1406static sint validate_80211w_mgmt(struct adapter *adapter, union recv_frame *precv_frame)
1407{
1408 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1409 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
1410 u8 *ptr = precv_frame->u.hdr.rx_data;
1411 u8 type;
1412 u8 subtype;
1413
1414 type = GetFrameType(ptr);
1415 subtype = GetFrameSubType(ptr);
1416
1417
1418 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) && check_fwstate(pmlmepriv, _FW_LINKED)
1419 && adapter->securitypriv.binstallBIPkey == true) {
1420
1421 if (pattrib->privacy && !(IS_MCAST(GetAddr1Ptr(ptr))) &&
1422 (subtype == WIFI_DEAUTH || subtype == WIFI_DISASSOC || subtype == WIFI_ACTION)) {
1423 u8 *ppp, *mgmt_DATA;
1424 u32 data_len = 0;
1425 ppp = GetAddr2Ptr(ptr);
1426
1427 pattrib->bdecrypted = 0;
1428 pattrib->encrypt = _AES_;
1429 pattrib->hdrlen = sizeof(struct ieee80211_hdr_3addr);
1430
1431 SET_ICE_IV_LEN(pattrib->iv_len, pattrib->icv_len, pattrib->encrypt);
1432 memcpy(pattrib->ra, GetAddr1Ptr(ptr), ETH_ALEN);
1433 memcpy(pattrib->ta, GetAddr2Ptr(ptr), ETH_ALEN);
1434
1435 data_len = pattrib->pkt_len - pattrib->hdrlen - pattrib->iv_len - pattrib->icv_len;
1436 mgmt_DATA = rtw_zmalloc(data_len);
1437 if (mgmt_DATA == NULL) {
1438 DBG_871X("%s mgmt allocate fail !!!!!!!!!\n", __func__);
1439 goto validate_80211w_fail;
1440 }
1441 precv_frame = decryptor(adapter, precv_frame);
1442
1443 memcpy(mgmt_DATA, ptr+pattrib->hdrlen+pattrib->iv_len, data_len);
1444
1445 memcpy(ptr+pattrib->hdrlen, mgmt_DATA, data_len);
1446
1447 pattrib->pkt_len = pattrib->pkt_len - pattrib->iv_len - pattrib->icv_len;
1448 kfree(mgmt_DATA);
1449 if (!precv_frame) {
1450 DBG_871X("%s mgmt descrypt fail !!!!!!!!!\n", __func__);
1451 goto validate_80211w_fail;
1452 }
1453 } else if (IS_MCAST(GetAddr1Ptr(ptr)) &&
1454 (subtype == WIFI_DEAUTH || subtype == WIFI_DISASSOC)) {
1455 sint BIP_ret = _SUCCESS;
1456
1457 BIP_ret = rtw_BIP_verify(adapter, (u8 *)precv_frame);
1458 if (BIP_ret == _FAIL) {
1459
1460 goto validate_80211w_fail;
1461 } else if (BIP_ret == RTW_RX_HANDLED) {
1462
1463
1464 issue_action_SA_Query(adapter, NULL, 0, 0);
1465 goto validate_80211w_fail;
1466 }
1467 } else {
1468 if (subtype == WIFI_ACTION) {
1469
1470 if (ptr[WLAN_HDR_A3_LEN] != RTW_WLAN_CATEGORY_PUBLIC &&
1471 ptr[WLAN_HDR_A3_LEN] != RTW_WLAN_CATEGORY_HT &&
1472 ptr[WLAN_HDR_A3_LEN] != RTW_WLAN_CATEGORY_UNPROTECTED_WNM &&
1473 ptr[WLAN_HDR_A3_LEN] != RTW_WLAN_CATEGORY_SELF_PROTECTED &&
1474 ptr[WLAN_HDR_A3_LEN] != RTW_WLAN_CATEGORY_P2P) {
1475 DBG_871X("action frame category =%d should robust\n", ptr[WLAN_HDR_A3_LEN]);
1476 goto validate_80211w_fail;
1477 }
1478 } else if (subtype == WIFI_DEAUTH || subtype == WIFI_DISASSOC) {
1479 DBG_871X("802.11w recv none protected packet\n");
1480
1481 issue_action_SA_Query(adapter, NULL, 0, 0);
1482 goto validate_80211w_fail;
1483 }
1484 }
1485 }
1486 return _SUCCESS;
1487
1488validate_80211w_fail:
1489 return _FAIL;
1490
1491}
1492
1493static inline void dump_rx_packet(u8 *ptr)
1494{
1495 int i;
1496
1497 DBG_871X("#############################\n");
1498 for (i = 0; i < 64; i = i+8)
1499 DBG_871X("%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:\n", *(ptr+i),
1500 *(ptr+i+1), *(ptr+i+2), *(ptr+i+3), *(ptr+i+4), *(ptr+i+5), *(ptr+i+6), *(ptr+i+7));
1501 DBG_871X("#############################\n");
1502}
1503
1504sint validate_recv_frame(struct adapter *adapter, union recv_frame *precv_frame);
1505sint validate_recv_frame(struct adapter *adapter, union recv_frame *precv_frame)
1506{
1507
1508
1509
1510
1511 u8 type;
1512 u8 subtype;
1513 sint retval = _SUCCESS;
1514 u8 bDumpRxPkt;
1515
1516 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
1517
1518 u8 *ptr = precv_frame->u.hdr.rx_data;
1519 u8 ver = (unsigned char) (*ptr)&0x3;
1520
1521
1522 if (ver != 0) {
1523 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("validate_recv_data_frame fail! (ver!= 0)\n"));
1524 retval = _FAIL;
1525 DBG_COUNTER(adapter->rx_logs.core_rx_pre_ver_err);
1526 goto exit;
1527 }
1528
1529 type = GetFrameType(ptr);
1530 subtype = GetFrameSubType(ptr);
1531
1532 pattrib->to_fr_ds = get_tofr_ds(ptr);
1533
1534 pattrib->frag_num = GetFragNum(ptr);
1535 pattrib->seq_num = GetSequence(ptr);
1536
1537 pattrib->pw_save = GetPwrMgt(ptr);
1538 pattrib->mfrag = GetMFrag(ptr);
1539 pattrib->mdata = GetMData(ptr);
1540 pattrib->privacy = GetPrivacy(ptr);
1541 pattrib->order = GetOrder(ptr);
1542 rtw_hal_get_def_var(adapter, HAL_DEF_DBG_DUMP_RXPKT, &(bDumpRxPkt));
1543 if (bDumpRxPkt == 1)
1544 dump_rx_packet(ptr);
1545 else if ((bDumpRxPkt == 2) && (type == WIFI_MGT_TYPE))
1546 dump_rx_packet(ptr);
1547 else if ((bDumpRxPkt == 3) && (type == WIFI_DATA_TYPE))
1548 dump_rx_packet(ptr);
1549
1550 switch (type) {
1551 case WIFI_MGT_TYPE:
1552 DBG_COUNTER(adapter->rx_logs.core_rx_pre_mgmt);
1553 if (validate_80211w_mgmt(adapter, precv_frame) == _FAIL) {
1554 retval = _FAIL;
1555 DBG_COUNTER(padapter->rx_logs.core_rx_pre_mgmt_err_80211w);
1556 break;
1557 }
1558
1559 retval = validate_recv_mgnt_frame(adapter, precv_frame);
1560 if (retval == _FAIL) {
1561 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("validate_recv_mgnt_frame fail\n"));
1562 DBG_COUNTER(adapter->rx_logs.core_rx_pre_mgmt_err);
1563 }
1564 retval = _FAIL;
1565 break;
1566 case WIFI_CTRL_TYPE:
1567 DBG_COUNTER(adapter->rx_logs.core_rx_pre_ctrl);
1568 retval = validate_recv_ctrl_frame(adapter, precv_frame);
1569 if (retval == _FAIL) {
1570 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("validate_recv_ctrl_frame fail\n"));
1571 DBG_COUNTER(adapter->rx_logs.core_rx_pre_ctrl_err);
1572 }
1573 retval = _FAIL;
1574 break;
1575 case WIFI_DATA_TYPE:
1576 DBG_COUNTER(adapter->rx_logs.core_rx_pre_data);
1577
1578 pattrib->qos = (subtype & BIT(7)) ? 1:0;
1579 retval = validate_recv_data_frame(adapter, precv_frame);
1580 if (retval == _FAIL) {
1581 struct recv_priv *precvpriv = &adapter->recvpriv;
1582
1583 precvpriv->rx_drop++;
1584 DBG_COUNTER(adapter->rx_logs.core_rx_pre_data_err);
1585 } else if (retval == _SUCCESS) {
1586#ifdef DBG_RX_DUMP_EAP
1587 u8 bDumpRxPkt;
1588 u16 eth_type;
1589
1590
1591 rtw_hal_get_def_var(adapter, HAL_DEF_DBG_DUMP_RXPKT, &(bDumpRxPkt));
1592
1593 memcpy(ð_type, ptr + pattrib->hdrlen + pattrib->iv_len + LLC_HEADER_SIZE, 2);
1594 eth_type = ntohs((unsigned short) eth_type);
1595 if ((bDumpRxPkt == 4) && (eth_type == 0x888e))
1596 dump_rx_packet(ptr);
1597#endif
1598 } else
1599 DBG_COUNTER(adapter->rx_logs.core_rx_pre_data_handled);
1600 break;
1601 default:
1602 DBG_COUNTER(adapter->rx_logs.core_rx_pre_unknown);
1603 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("validate_recv_data_frame fail! type = 0x%x\n", type));
1604 #ifdef DBG_RX_DROP_FRAME
1605 DBG_871X("DBG_RX_DROP_FRAME validate_recv_data_frame fail! type = 0x%x\n", type);
1606 #endif
1607 retval = _FAIL;
1608 break;
1609 }
1610
1611exit:
1612 return retval;
1613}
1614
1615
1616
1617sint wlanhdr_to_ethhdr(union recv_frame *precvframe);
1618sint wlanhdr_to_ethhdr(union recv_frame *precvframe)
1619{
1620 sint rmv_len;
1621 u16 eth_type, len;
1622 u8 bsnaphdr;
1623 u8 *psnap_type;
1624 struct ieee80211_snap_hdr *psnap;
1625 __be16 be_tmp;
1626 sint ret = _SUCCESS;
1627 struct adapter *adapter = precvframe->u.hdr.adapter;
1628 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1629 u8 *ptr = get_recvframe_data(precvframe) ;
1630 struct rx_pkt_attrib *pattrib = &precvframe->u.hdr.attrib;
1631
1632 if (pattrib->encrypt) {
1633 recvframe_pull_tail(precvframe, pattrib->icv_len);
1634 }
1635
1636 psnap = (struct ieee80211_snap_hdr *)(ptr+pattrib->hdrlen + pattrib->iv_len);
1637 psnap_type = ptr+pattrib->hdrlen + pattrib->iv_len+SNAP_SIZE;
1638
1639
1640 if ((!memcmp(psnap, rtw_rfc1042_header, SNAP_SIZE) &&
1641 (memcmp(psnap_type, SNAP_ETH_TYPE_IPX, 2)) &&
1642 (memcmp(psnap_type, SNAP_ETH_TYPE_APPLETALK_AARP, 2))) ||
1643
1644 !memcmp(psnap, rtw_bridge_tunnel_header, SNAP_SIZE)) {
1645
1646 bsnaphdr = true;
1647 } else
1648
1649 bsnaphdr = false;
1650
1651 rmv_len = pattrib->hdrlen + pattrib->iv_len + (bsnaphdr?SNAP_SIZE:0);
1652 len = precvframe->u.hdr.len - rmv_len;
1653
1654 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n ===pattrib->hdrlen: %x, pattrib->iv_len:%x ===\n\n", pattrib->hdrlen, pattrib->iv_len));
1655
1656 memcpy(&be_tmp, ptr+rmv_len, 2);
1657 eth_type = ntohs(be_tmp);
1658 pattrib->eth_type = eth_type;
1659
1660#ifdef CONFIG_AUTO_AP_MODE
1661 if (0x8899 == pattrib->eth_type) {
1662 struct sta_info *psta = precvframe->u.hdr.psta;
1663
1664 DBG_871X("wlan rx: got eth_type = 0x%x\n", pattrib->eth_type);
1665
1666 if (psta && psta->isrc && psta->pid > 0) {
1667 u16 rx_pid;
1668
1669 rx_pid = *(u16 *)(ptr+rmv_len+2);
1670
1671 DBG_871X("wlan rx(pid = 0x%x): sta("MAC_FMT") pid = 0x%x\n",
1672 rx_pid, MAC_ARG(psta->hwaddr), psta->pid);
1673
1674 if (rx_pid == psta->pid) {
1675 int i;
1676 u16 len = *(u16 *)(ptr+rmv_len+4);
1677
1678
1679
1680 DBG_871X("RC: len = 0x%x\n", len);
1681
1682 for (i = 0; i < len ; i++)
1683 DBG_871X("0x%x\n", *(ptr+rmv_len+6+i));
1684
1685
1686 DBG_871X("RC-end\n");
1687 }
1688 }
1689 }
1690#endif
1691
1692 if ((check_fwstate(pmlmepriv, WIFI_MP_STATE) == true)) {
1693 ptr += rmv_len;
1694 *ptr = 0x87;
1695 *(ptr+1) = 0x12;
1696
1697 eth_type = 0x8712;
1698
1699 ptr = recvframe_pull(precvframe, (rmv_len-sizeof(struct ethhdr)+2)-24);
1700 memcpy(ptr, get_rxmem(precvframe), 24);
1701 ptr += 24;
1702 } else
1703 ptr = recvframe_pull(precvframe, (rmv_len-sizeof(struct ethhdr) + (bsnaphdr?2:0)));
1704
1705 memcpy(ptr, pattrib->dst, ETH_ALEN);
1706 memcpy(ptr+ETH_ALEN, pattrib->src, ETH_ALEN);
1707
1708 if (!bsnaphdr) {
1709 be_tmp = htons(len);
1710 memcpy(ptr+12, &be_tmp, 2);
1711 }
1712
1713 return ret;
1714}
1715
1716
1717static union recv_frame *recvframe_defrag(struct adapter *adapter,
1718 struct __queue *defrag_q)
1719{
1720 struct list_head *plist, *phead;
1721 u8 *data, wlanhdr_offset;
1722 u8 curfragnum;
1723 struct recv_frame_hdr *pfhdr, *pnfhdr;
1724 union recv_frame *prframe, *pnextrframe;
1725 struct __queue *pfree_recv_queue;
1726
1727 curfragnum = 0;
1728 pfree_recv_queue = &adapter->recvpriv.free_recv_queue;
1729
1730 phead = get_list_head(defrag_q);
1731 plist = get_next(phead);
1732 prframe = (union recv_frame *)plist;
1733 pfhdr = &prframe->u.hdr;
1734 list_del_init(&(prframe->u.list));
1735
1736 if (curfragnum != pfhdr->attrib.frag_num) {
1737
1738
1739 rtw_free_recvframe(prframe, pfree_recv_queue);
1740 rtw_free_recvframe_queue(defrag_q, pfree_recv_queue);
1741
1742 return NULL;
1743 }
1744
1745 curfragnum++;
1746
1747 plist = get_list_head(defrag_q);
1748
1749 plist = get_next(plist);
1750
1751 data = get_recvframe_data(prframe);
1752
1753 while (phead != plist) {
1754 pnextrframe = (union recv_frame *)plist;
1755 pnfhdr = &pnextrframe->u.hdr;
1756
1757
1758
1759
1760 if (curfragnum != pnfhdr->attrib.frag_num) {
1761
1762
1763 rtw_free_recvframe(prframe, pfree_recv_queue);
1764 rtw_free_recvframe_queue(defrag_q, pfree_recv_queue);
1765 return NULL;
1766 }
1767
1768 curfragnum++;
1769
1770
1771
1772
1773 wlanhdr_offset = pnfhdr->attrib.hdrlen + pnfhdr->attrib.iv_len;
1774
1775 recvframe_pull(pnextrframe, wlanhdr_offset);
1776
1777
1778 recvframe_pull_tail(prframe, pfhdr->attrib.icv_len);
1779
1780
1781 memcpy(pfhdr->rx_tail, pnfhdr->rx_data, pnfhdr->len);
1782
1783 recvframe_put(prframe, pnfhdr->len);
1784
1785 pfhdr->attrib.icv_len = pnfhdr->attrib.icv_len;
1786 plist = get_next(plist);
1787
1788 }
1789
1790
1791 rtw_free_recvframe_queue(defrag_q, pfree_recv_queue);
1792
1793 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("Performance defrag!!!!!\n"));
1794
1795 return prframe;
1796}
1797
1798
1799union recv_frame *recvframe_chk_defrag(struct adapter *padapter, union recv_frame *precv_frame)
1800{
1801 u8 ismfrag;
1802 u8 fragnum;
1803 u8 *psta_addr;
1804 struct recv_frame_hdr *pfhdr;
1805 struct sta_info *psta;
1806 struct sta_priv *pstapriv;
1807 struct list_head *phead;
1808 union recv_frame *prtnframe = NULL;
1809 struct __queue *pfree_recv_queue, *pdefrag_q;
1810
1811 pstapriv = &padapter->stapriv;
1812
1813 pfhdr = &precv_frame->u.hdr;
1814
1815 pfree_recv_queue = &padapter->recvpriv.free_recv_queue;
1816
1817
1818 ismfrag = pfhdr->attrib.mfrag;
1819 fragnum = pfhdr->attrib.frag_num;
1820
1821 psta_addr = pfhdr->attrib.ta;
1822 psta = rtw_get_stainfo(pstapriv, psta_addr);
1823 if (psta == NULL) {
1824 u8 type = GetFrameType(pfhdr->rx_data);
1825 if (type != WIFI_DATA_TYPE) {
1826 psta = rtw_get_bcmc_stainfo(padapter);
1827 pdefrag_q = &psta->sta_recvpriv.defrag_q;
1828 } else
1829 pdefrag_q = NULL;
1830 } else
1831 pdefrag_q = &psta->sta_recvpriv.defrag_q;
1832
1833 if ((ismfrag == 0) && (fragnum == 0))
1834 prtnframe = precv_frame;
1835
1836 if (ismfrag == 1) {
1837
1838
1839 if (pdefrag_q != NULL) {
1840 if (fragnum == 0)
1841
1842 if (!list_empty(&pdefrag_q->queue))
1843
1844 rtw_free_recvframe_queue(pdefrag_q, pfree_recv_queue);
1845
1846
1847
1848
1849
1850 phead = get_list_head(pdefrag_q);
1851 list_add_tail(&pfhdr->list, phead);
1852
1853
1854 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("Enqueuq: ismfrag = %d, fragnum = %d\n", ismfrag, fragnum));
1855
1856 prtnframe = NULL;
1857
1858 } else{
1859
1860 rtw_free_recvframe(precv_frame, pfree_recv_queue);
1861 prtnframe = NULL;
1862 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("Free because pdefrag_q == NULL: ismfrag = %d, fragnum = %d\n", ismfrag, fragnum));
1863 }
1864
1865 }
1866
1867 if ((ismfrag == 0) && (fragnum != 0)) {
1868
1869
1870 if (pdefrag_q != NULL) {
1871
1872 phead = get_list_head(pdefrag_q);
1873 list_add_tail(&pfhdr->list, phead);
1874
1875
1876
1877 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("defrag: ismfrag = %d, fragnum = %d\n", ismfrag, fragnum));
1878 precv_frame = recvframe_defrag(padapter, pdefrag_q);
1879 prtnframe = precv_frame;
1880
1881 } else{
1882
1883 rtw_free_recvframe(precv_frame, pfree_recv_queue);
1884 prtnframe = NULL;
1885 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("Free because pdefrag_q == NULL: ismfrag = %d, fragnum = %d\n", ismfrag, fragnum));
1886 }
1887
1888 }
1889
1890
1891 if ((prtnframe != NULL) && (prtnframe->u.hdr.attrib.privacy)) {
1892
1893 if (recvframe_chkmic(padapter, prtnframe) == _FAIL) {
1894 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvframe_chkmic(padapter, prtnframe) == _FAIL\n"));
1895 rtw_free_recvframe(prtnframe, pfree_recv_queue);
1896 prtnframe = NULL;
1897 }
1898 }
1899 return prtnframe;
1900}
1901
1902static int amsdu_to_msdu(struct adapter *padapter, union recv_frame *prframe)
1903{
1904 int a_len, padding_len;
1905 u16 nSubframe_Length;
1906 u8 nr_subframes, i;
1907 u8 *pdata;
1908 _pkt *sub_pkt, *subframes[MAX_SUBFRAME_COUNT];
1909 struct recv_priv *precvpriv = &padapter->recvpriv;
1910 struct __queue *pfree_recv_queue = &(precvpriv->free_recv_queue);
1911 int ret = _SUCCESS;
1912
1913 nr_subframes = 0;
1914
1915 recvframe_pull(prframe, prframe->u.hdr.attrib.hdrlen);
1916
1917 if (prframe->u.hdr.attrib.iv_len > 0)
1918 recvframe_pull(prframe, prframe->u.hdr.attrib.iv_len);
1919
1920 a_len = prframe->u.hdr.len;
1921
1922 pdata = prframe->u.hdr.rx_data;
1923
1924 while (a_len > ETH_HLEN) {
1925
1926
1927 nSubframe_Length = RTW_GET_BE16(pdata + 12);
1928
1929 if (a_len < (ETHERNET_HEADER_SIZE + nSubframe_Length)) {
1930 DBG_871X("nRemain_Length is %d and nSubframe_Length is : %d\n", a_len, nSubframe_Length);
1931 break;
1932 }
1933
1934 sub_pkt = rtw_os_alloc_msdu_pkt(prframe, nSubframe_Length, pdata);
1935 if (sub_pkt == NULL) {
1936 DBG_871X("%s(): allocate sub packet fail !!!\n", __func__);
1937 break;
1938 }
1939
1940
1941 pdata += ETH_HLEN;
1942 a_len -= ETH_HLEN;
1943
1944 subframes[nr_subframes++] = sub_pkt;
1945
1946 if (nr_subframes >= MAX_SUBFRAME_COUNT) {
1947 DBG_871X("ParseSubframe(): Too many Subframes! Packets dropped!\n");
1948 break;
1949 }
1950
1951 pdata += nSubframe_Length;
1952 a_len -= nSubframe_Length;
1953 if (a_len != 0) {
1954 padding_len = 4 - ((nSubframe_Length + ETH_HLEN) & (4-1));
1955 if (padding_len == 4) {
1956 padding_len = 0;
1957 }
1958
1959 if (a_len < padding_len) {
1960 DBG_871X("ParseSubframe(): a_len < padding_len !\n");
1961 break;
1962 }
1963 pdata += padding_len;
1964 a_len -= padding_len;
1965 }
1966 }
1967
1968 for (i = 0; i < nr_subframes; i++) {
1969 sub_pkt = subframes[i];
1970
1971
1972 if (sub_pkt) {
1973 rtw_os_recv_indicate_pkt(padapter, sub_pkt, &prframe->u.hdr.attrib);
1974 }
1975 }
1976
1977 prframe->u.hdr.len = 0;
1978 rtw_free_recvframe(prframe, pfree_recv_queue);
1979
1980 return ret;
1981}
1982
1983int check_indicate_seq(struct recv_reorder_ctrl *preorder_ctrl, u16 seq_num);
1984int check_indicate_seq(struct recv_reorder_ctrl *preorder_ctrl, u16 seq_num)
1985{
1986 struct adapter *padapter = preorder_ctrl->padapter;
1987 struct dvobj_priv *psdpriv = padapter->dvobj;
1988 struct debug_priv *pdbgpriv = &psdpriv->drv_dbg;
1989 u8 wsize = preorder_ctrl->wsize_b;
1990 u16 wend = (preorder_ctrl->indicate_seq + wsize - 1) & 0xFFF;
1991
1992
1993 if (preorder_ctrl->indicate_seq == 0xFFFF) {
1994 preorder_ctrl->indicate_seq = seq_num;
1995 #ifdef DBG_RX_SEQ
1996 DBG_871X("DBG_RX_SEQ %s:%d init IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
1997 preorder_ctrl->indicate_seq, seq_num);
1998 #endif
1999
2000
2001 }
2002
2003
2004
2005
2006 if (SN_LESS(seq_num, preorder_ctrl->indicate_seq)) {
2007
2008
2009
2010 #ifdef DBG_RX_DROP_FRAME
2011 DBG_871X("%s IndicateSeq: %d > NewSeq: %d\n", __func__,
2012 preorder_ctrl->indicate_seq, seq_num);
2013 #endif
2014
2015
2016 return false;
2017 }
2018
2019
2020
2021
2022
2023
2024 if (SN_EQUAL(seq_num, preorder_ctrl->indicate_seq)) {
2025 preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1) & 0xFFF;
2026
2027 #ifdef DBG_RX_SEQ
2028 DBG_871X("DBG_RX_SEQ %s:%d SN_EQUAL IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2029 preorder_ctrl->indicate_seq, seq_num);
2030 #endif
2031 } else if (SN_LESS(wend, seq_num)) {
2032
2033
2034
2035
2036 if (seq_num >= (wsize - 1))
2037 preorder_ctrl->indicate_seq = seq_num + 1 - wsize;
2038 else
2039 preorder_ctrl->indicate_seq = 0xFFF - (wsize - (seq_num + 1)) + 1;
2040 pdbgpriv->dbg_rx_ampdu_window_shift_cnt++;
2041 #ifdef DBG_RX_SEQ
2042 DBG_871X("DBG_RX_SEQ %s:%d SN_LESS(wend, seq_num) IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2043 preorder_ctrl->indicate_seq, seq_num);
2044 #endif
2045 }
2046
2047
2048
2049 return true;
2050}
2051
2052int enqueue_reorder_recvframe(struct recv_reorder_ctrl *preorder_ctrl, union recv_frame *prframe);
2053int enqueue_reorder_recvframe(struct recv_reorder_ctrl *preorder_ctrl, union recv_frame *prframe)
2054{
2055 struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib;
2056 struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
2057 struct list_head *phead, *plist;
2058 union recv_frame *pnextrframe;
2059 struct rx_pkt_attrib *pnextattrib;
2060
2061
2062
2063
2064
2065
2066
2067 phead = get_list_head(ppending_recvframe_queue);
2068 plist = get_next(phead);
2069
2070 while (phead != plist) {
2071 pnextrframe = (union recv_frame *)plist;
2072 pnextattrib = &pnextrframe->u.hdr.attrib;
2073
2074 if (SN_LESS(pnextattrib->seq_num, pattrib->seq_num))
2075 plist = get_next(plist);
2076 else if (SN_EQUAL(pnextattrib->seq_num, pattrib->seq_num))
2077
2078
2079
2080 return false;
2081 else
2082 break;
2083
2084
2085
2086 }
2087
2088
2089
2090
2091
2092 list_del_init(&(prframe->u.hdr.list));
2093
2094 list_add_tail(&(prframe->u.hdr.list), plist);
2095
2096
2097
2098
2099
2100
2101 return true;
2102
2103}
2104
2105void recv_indicatepkts_pkt_loss_cnt(struct debug_priv *pdbgpriv, u64 prev_seq, u64 current_seq);
2106void recv_indicatepkts_pkt_loss_cnt(struct debug_priv *pdbgpriv, u64 prev_seq, u64 current_seq)
2107{
2108 if (current_seq < prev_seq)
2109 pdbgpriv->dbg_rx_ampdu_loss_count += (4096 + current_seq - prev_seq);
2110 else
2111 pdbgpriv->dbg_rx_ampdu_loss_count += (current_seq - prev_seq);
2112
2113}
2114int recv_indicatepkts_in_order(struct adapter *padapter, struct recv_reorder_ctrl *preorder_ctrl, int bforced);
2115int recv_indicatepkts_in_order(struct adapter *padapter, struct recv_reorder_ctrl *preorder_ctrl, int bforced)
2116{
2117 struct list_head *phead, *plist;
2118 union recv_frame *prframe;
2119 struct rx_pkt_attrib *pattrib;
2120
2121 int bPktInBuf = false;
2122 struct recv_priv *precvpriv = &padapter->recvpriv;
2123 struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
2124 struct dvobj_priv *psdpriv = padapter->dvobj;
2125 struct debug_priv *pdbgpriv = &psdpriv->drv_dbg;
2126
2127 DBG_COUNTER(padapter->rx_logs.core_rx_post_indicate_in_oder);
2128
2129
2130
2131
2132
2133
2134 phead = get_list_head(ppending_recvframe_queue);
2135 plist = get_next(phead);
2136
2137
2138 if (bforced == true) {
2139 pdbgpriv->dbg_rx_ampdu_forced_indicate_count++;
2140 if (list_empty(phead)) {
2141
2142
2143 return true;
2144 }
2145
2146 prframe = (union recv_frame *)plist;
2147 pattrib = &prframe->u.hdr.attrib;
2148
2149 #ifdef DBG_RX_SEQ
2150 DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2151 preorder_ctrl->indicate_seq, pattrib->seq_num);
2152 #endif
2153 recv_indicatepkts_pkt_loss_cnt(pdbgpriv, preorder_ctrl->indicate_seq, pattrib->seq_num);
2154 preorder_ctrl->indicate_seq = pattrib->seq_num;
2155
2156 }
2157
2158
2159
2160 while (!list_empty(phead)) {
2161
2162 prframe = (union recv_frame *)plist;
2163 pattrib = &prframe->u.hdr.attrib;
2164
2165 if (!SN_LESS(preorder_ctrl->indicate_seq, pattrib->seq_num)) {
2166 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
2167 ("recv_indicatepkts_in_order: indicate =%d seq =%d amsdu =%d\n",
2168 preorder_ctrl->indicate_seq, pattrib->seq_num, pattrib->amsdu));
2169
2170 plist = get_next(plist);
2171 list_del_init(&(prframe->u.hdr.list));
2172
2173 if (SN_EQUAL(preorder_ctrl->indicate_seq, pattrib->seq_num)) {
2174 preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1) & 0xFFF;
2175 #ifdef DBG_RX_SEQ
2176 DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2177 preorder_ctrl->indicate_seq, pattrib->seq_num);
2178 #endif
2179 }
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190 if (!pattrib->amsdu) {
2191
2192
2193 if ((padapter->bDriverStopped == false) &&
2194 (padapter->bSurpriseRemoved == false))
2195 rtw_recv_indicatepkt(padapter, prframe);
2196
2197 } else if (pattrib->amsdu == 1) {
2198 if (amsdu_to_msdu(padapter, prframe) != _SUCCESS)
2199 rtw_free_recvframe(prframe, &precvpriv->free_recv_queue);
2200
2201 } else{
2202
2203 }
2204
2205
2206
2207 bPktInBuf = false;
2208
2209 } else{
2210 bPktInBuf = true;
2211 break;
2212 }
2213
2214
2215
2216 }
2217
2218
2219
2220
2221 return bPktInBuf;
2222}
2223
2224int recv_indicatepkt_reorder(struct adapter *padapter, union recv_frame *prframe);
2225int recv_indicatepkt_reorder(struct adapter *padapter, union recv_frame *prframe)
2226{
2227 int retval = _SUCCESS;
2228 struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib;
2229 struct recv_reorder_ctrl *preorder_ctrl = prframe->u.hdr.preorder_ctrl;
2230 struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
2231 struct dvobj_priv *psdpriv = padapter->dvobj;
2232 struct debug_priv *pdbgpriv = &psdpriv->drv_dbg;
2233
2234 DBG_COUNTER(padapter->rx_logs.core_rx_post_indicate_reoder);
2235
2236 if (!pattrib->amsdu) {
2237
2238 wlanhdr_to_ethhdr(prframe);
2239
2240 if (pattrib->qos != 1) {
2241 if ((padapter->bDriverStopped == false) &&
2242 (padapter->bSurpriseRemoved == false)) {
2243 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("@@@@ recv_indicatepkt_reorder -recv_func recv_indicatepkt\n"));
2244
2245 rtw_recv_indicatepkt(padapter, prframe);
2246 return _SUCCESS;
2247
2248 }
2249
2250 #ifdef DBG_RX_DROP_FRAME
2251 DBG_871X("DBG_RX_DROP_FRAME %s pattrib->qos != 1\n", __func__);
2252 #endif
2253
2254 return _FAIL;
2255
2256 }
2257
2258 if (preorder_ctrl->enable == false) {
2259
2260 preorder_ctrl->indicate_seq = pattrib->seq_num;
2261 #ifdef DBG_RX_SEQ
2262 DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2263 preorder_ctrl->indicate_seq, pattrib->seq_num);
2264 #endif
2265
2266 rtw_recv_indicatepkt(padapter, prframe);
2267
2268 preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1)%4096;
2269 #ifdef DBG_RX_SEQ
2270 DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2271 preorder_ctrl->indicate_seq, pattrib->seq_num);
2272 #endif
2273
2274 return _SUCCESS;
2275 }
2276 } else if (pattrib->amsdu == 1) {
2277 if (preorder_ctrl->enable == false) {
2278 preorder_ctrl->indicate_seq = pattrib->seq_num;
2279 #ifdef DBG_RX_SEQ
2280 DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2281 preorder_ctrl->indicate_seq, pattrib->seq_num);
2282 #endif
2283
2284 retval = amsdu_to_msdu(padapter, prframe);
2285
2286 preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1)%4096;
2287 #ifdef DBG_RX_SEQ
2288 DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2289 preorder_ctrl->indicate_seq, pattrib->seq_num);
2290 #endif
2291
2292 if (retval != _SUCCESS) {
2293 #ifdef DBG_RX_DROP_FRAME
2294 DBG_871X("DBG_RX_DROP_FRAME %s amsdu_to_msdu fail\n", __func__);
2295 #endif
2296 }
2297
2298 return retval;
2299 }
2300 }
2301
2302 spin_lock_bh(&ppending_recvframe_queue->lock);
2303
2304 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
2305 ("recv_indicatepkt_reorder: indicate =%d seq =%d\n",
2306 preorder_ctrl->indicate_seq, pattrib->seq_num));
2307
2308
2309 if (!check_indicate_seq(preorder_ctrl, pattrib->seq_num)) {
2310 pdbgpriv->dbg_rx_ampdu_drop_count++;
2311 #ifdef DBG_RX_DROP_FRAME
2312 DBG_871X("DBG_RX_DROP_FRAME %s check_indicate_seq fail\n", __func__);
2313 #endif
2314 goto _err_exit;
2315 }
2316
2317
2318
2319 if (!enqueue_reorder_recvframe(preorder_ctrl, prframe)) {
2320
2321
2322
2323 #ifdef DBG_RX_DROP_FRAME
2324 DBG_871X("DBG_RX_DROP_FRAME %s enqueue_reorder_recvframe fail\n", __func__);
2325 #endif
2326 goto _err_exit;
2327 }
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341 if (recv_indicatepkts_in_order(padapter, preorder_ctrl, false) == true) {
2342 _set_timer(&preorder_ctrl->reordering_ctrl_timer, REORDER_WAIT_TIME);
2343 spin_unlock_bh(&ppending_recvframe_queue->lock);
2344 } else{
2345 spin_unlock_bh(&ppending_recvframe_queue->lock);
2346 del_timer_sync(&preorder_ctrl->reordering_ctrl_timer);
2347 }
2348
2349 return _SUCCESS;
2350
2351_err_exit:
2352 spin_unlock_bh(&ppending_recvframe_queue->lock);
2353
2354 return _FAIL;
2355}
2356
2357
2358void rtw_reordering_ctrl_timeout_handler(struct timer_list *t)
2359{
2360 struct recv_reorder_ctrl *preorder_ctrl =
2361 from_timer(preorder_ctrl, t, reordering_ctrl_timer);
2362 struct adapter *padapter = preorder_ctrl->padapter;
2363 struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
2364
2365
2366 if (padapter->bDriverStopped || padapter->bSurpriseRemoved)
2367 return;
2368
2369
2370
2371 spin_lock_bh(&ppending_recvframe_queue->lock);
2372
2373 if (recv_indicatepkts_in_order(padapter, preorder_ctrl, true) == true)
2374 _set_timer(&preorder_ctrl->reordering_ctrl_timer, REORDER_WAIT_TIME);
2375
2376 spin_unlock_bh(&ppending_recvframe_queue->lock);
2377
2378}
2379
2380int process_recv_indicatepkts(struct adapter *padapter, union recv_frame *prframe);
2381int process_recv_indicatepkts(struct adapter *padapter, union recv_frame *prframe)
2382{
2383 int retval = _SUCCESS;
2384
2385
2386 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2387 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
2388
2389 DBG_COUNTER(padapter->rx_logs.core_rx_post_indicate);
2390
2391 if (phtpriv->ht_option == true) {
2392
2393
2394 if (recv_indicatepkt_reorder(padapter, prframe) != _SUCCESS) {
2395 #ifdef DBG_RX_DROP_FRAME
2396 DBG_871X("DBG_RX_DROP_FRAME %s recv_indicatepkt_reorder error!\n", __func__);
2397 #endif
2398
2399 if ((padapter->bDriverStopped == false) &&
2400 (padapter->bSurpriseRemoved == false)) {
2401 retval = _FAIL;
2402 return retval;
2403 }
2404 }
2405 } else {
2406 retval = wlanhdr_to_ethhdr(prframe);
2407 if (retval != _SUCCESS) {
2408 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("wlanhdr_to_ethhdr: drop pkt\n"));
2409 #ifdef DBG_RX_DROP_FRAME
2410 DBG_871X("DBG_RX_DROP_FRAME %s wlanhdr_to_ethhdr error!\n", __func__);
2411 #endif
2412 return retval;
2413 }
2414
2415 if ((padapter->bDriverStopped == false) && (padapter->bSurpriseRemoved == false)) {
2416
2417 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("@@@@ process_recv_indicatepkts- recv_func recv_indicatepkt\n"));
2418 rtw_recv_indicatepkt(padapter, prframe);
2419
2420
2421 } else{
2422 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("@@@@ process_recv_indicatepkts- recv_func free_indicatepkt\n"));
2423
2424 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("recv_func:bDriverStopped(%d) OR bSurpriseRemoved(%d)", padapter->bDriverStopped, padapter->bSurpriseRemoved));
2425 retval = _FAIL;
2426 return retval;
2427 }
2428
2429 }
2430
2431 return retval;
2432
2433}
2434
2435static int recv_func_prehandle(struct adapter *padapter, union recv_frame *rframe)
2436{
2437 int ret = _SUCCESS;
2438 struct __queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue;
2439
2440 DBG_COUNTER(padapter->rx_logs.core_rx_pre);
2441
2442
2443 ret = validate_recv_frame(padapter, rframe);
2444 if (ret != _SUCCESS) {
2445 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("recv_func: validate_recv_frame fail! drop pkt\n"));
2446 rtw_free_recvframe(rframe, pfree_recv_queue);
2447 goto exit;
2448 }
2449
2450exit:
2451 return ret;
2452}
2453
2454static int recv_func_posthandle(struct adapter *padapter, union recv_frame *prframe)
2455{
2456 int ret = _SUCCESS;
2457 union recv_frame *orig_prframe = prframe;
2458 struct recv_priv *precvpriv = &padapter->recvpriv;
2459 struct __queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue;
2460
2461 DBG_COUNTER(padapter->rx_logs.core_rx_post);
2462
2463 prframe = decryptor(padapter, prframe);
2464 if (prframe == NULL) {
2465 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("decryptor: drop pkt\n"));
2466 #ifdef DBG_RX_DROP_FRAME
2467 DBG_871X("DBG_RX_DROP_FRAME %s decryptor: drop pkt\n", __func__);
2468 #endif
2469 ret = _FAIL;
2470 DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_err);
2471 goto _recv_data_drop;
2472 }
2473
2474 prframe = recvframe_chk_defrag(padapter, prframe);
2475 if (prframe == NULL) {
2476 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvframe_chk_defrag: drop pkt\n"));
2477 #ifdef DBG_RX_DROP_FRAME
2478 DBG_871X("DBG_RX_DROP_FRAME %s recvframe_chk_defrag: drop pkt\n", __func__);
2479 #endif
2480 DBG_COUNTER(padapter->rx_logs.core_rx_post_defrag_err);
2481 goto _recv_data_drop;
2482 }
2483
2484 prframe = portctrl(padapter, prframe);
2485 if (prframe == NULL) {
2486 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("portctrl: drop pkt\n"));
2487 #ifdef DBG_RX_DROP_FRAME
2488 DBG_871X("DBG_RX_DROP_FRAME %s portctrl: drop pkt\n", __func__);
2489 #endif
2490 ret = _FAIL;
2491 DBG_COUNTER(padapter->rx_logs.core_rx_post_portctrl_err);
2492 goto _recv_data_drop;
2493 }
2494
2495 count_rx_stats(padapter, prframe, NULL);
2496
2497 ret = process_recv_indicatepkts(padapter, prframe);
2498 if (ret != _SUCCESS) {
2499 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recv_func: process_recv_indicatepkts fail!\n"));
2500 #ifdef DBG_RX_DROP_FRAME
2501 DBG_871X("DBG_RX_DROP_FRAME %s process_recv_indicatepkts fail!\n", __func__);
2502 #endif
2503 rtw_free_recvframe(orig_prframe, pfree_recv_queue);
2504 DBG_COUNTER(padapter->rx_logs.core_rx_post_indicate_err);
2505 goto _recv_data_drop;
2506 }
2507
2508_recv_data_drop:
2509 precvpriv->rx_drop++;
2510 return ret;
2511}
2512
2513
2514int recv_func(struct adapter *padapter, union recv_frame *rframe);
2515int recv_func(struct adapter *padapter, union recv_frame *rframe)
2516{
2517 int ret;
2518 struct rx_pkt_attrib *prxattrib = &rframe->u.hdr.attrib;
2519 struct recv_priv *recvpriv = &padapter->recvpriv;
2520 struct security_priv *psecuritypriv = &padapter->securitypriv;
2521 struct mlme_priv *mlmepriv = &padapter->mlmepriv;
2522
2523
2524 if (check_fwstate(mlmepriv, WIFI_STATION_STATE) && psecuritypriv->busetkipkey) {
2525 union recv_frame *pending_frame;
2526 int cnt = 0;
2527
2528 while ((pending_frame = rtw_alloc_recvframe(&padapter->recvpriv.uc_swdec_pending_queue))) {
2529 cnt++;
2530 DBG_COUNTER(padapter->rx_logs.core_rx_dequeue);
2531 recv_func_posthandle(padapter, pending_frame);
2532 }
2533
2534 if (cnt)
2535 DBG_871X(FUNC_ADPT_FMT" dequeue %d from uc_swdec_pending_queue\n",
2536 FUNC_ADPT_ARG(padapter), cnt);
2537 }
2538
2539 DBG_COUNTER(padapter->rx_logs.core_rx);
2540 ret = recv_func_prehandle(padapter, rframe);
2541
2542 if (ret == _SUCCESS) {
2543
2544
2545 if (check_fwstate(mlmepriv, WIFI_STATION_STATE) &&
2546 !IS_MCAST(prxattrib->ra) && prxattrib->encrypt > 0 &&
2547 (prxattrib->bdecrypted == 0 || psecuritypriv->sw_decrypt == true) &&
2548 psecuritypriv->ndisauthtype == Ndis802_11AuthModeWPAPSK &&
2549 !psecuritypriv->busetkipkey) {
2550 DBG_COUNTER(padapter->rx_logs.core_rx_enqueue);
2551 rtw_enqueue_recvframe(rframe, &padapter->recvpriv.uc_swdec_pending_queue);
2552
2553
2554 if (recvpriv->free_recvframe_cnt < NR_RECVFRAME/4) {
2555
2556 rframe = rtw_alloc_recvframe(&padapter->recvpriv.uc_swdec_pending_queue);
2557 if (rframe)
2558 goto do_posthandle;
2559 }
2560 goto exit;
2561 }
2562
2563do_posthandle:
2564 ret = recv_func_posthandle(padapter, rframe);
2565 }
2566
2567exit:
2568 return ret;
2569}
2570
2571
2572s32 rtw_recv_entry(union recv_frame *precvframe)
2573{
2574 struct adapter *padapter;
2575 struct recv_priv *precvpriv;
2576 s32 ret = _SUCCESS;
2577
2578
2579
2580 padapter = precvframe->u.hdr.adapter;
2581
2582 precvpriv = &padapter->recvpriv;
2583
2584 ret = recv_func(padapter, precvframe);
2585 if (ret == _FAIL) {
2586 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("rtw_recv_entry: recv_func return fail!!!\n"));
2587 goto _recv_entry_drop;
2588 }
2589
2590
2591 precvpriv->rx_pkts++;
2592
2593 return ret;
2594
2595_recv_entry_drop:
2596
2597
2598
2599 return ret;
2600}
2601
2602static void rtw_signal_stat_timer_hdl(struct timer_list *t)
2603{
2604 struct adapter *adapter =
2605 from_timer(adapter, t, recvpriv.signal_stat_timer);
2606 struct recv_priv *recvpriv = &adapter->recvpriv;
2607
2608 u32 tmp_s, tmp_q;
2609 u8 avg_signal_strength = 0;
2610 u8 avg_signal_qual = 0;
2611 u32 num_signal_strength = 0;
2612 u32 num_signal_qual = 0;
2613 u8 _alpha = 5;
2614
2615 if (adapter->recvpriv.is_signal_dbg) {
2616
2617 adapter->recvpriv.signal_strength = adapter->recvpriv.signal_strength_dbg;
2618 adapter->recvpriv.rssi = (s8)translate_percentage_to_dbm((u8)adapter->recvpriv.signal_strength_dbg);
2619 } else {
2620
2621 if (recvpriv->signal_strength_data.update_req == 0) {
2622 avg_signal_strength = recvpriv->signal_strength_data.avg_val;
2623 num_signal_strength = recvpriv->signal_strength_data.total_num;
2624
2625 recvpriv->signal_strength_data.update_req = 1;
2626 }
2627
2628 if (recvpriv->signal_qual_data.update_req == 0) {
2629 avg_signal_qual = recvpriv->signal_qual_data.avg_val;
2630 num_signal_qual = recvpriv->signal_qual_data.total_num;
2631
2632 recvpriv->signal_qual_data.update_req = 1;
2633 }
2634
2635 if (num_signal_strength == 0) {
2636 if (rtw_get_on_cur_ch_time(adapter) == 0
2637 || jiffies_to_msecs(jiffies - rtw_get_on_cur_ch_time(adapter)) < 2 * adapter->mlmeextpriv.mlmext_info.bcn_interval
2638 ) {
2639 goto set_timer;
2640 }
2641 }
2642
2643 if (check_fwstate(&adapter->mlmepriv, _FW_UNDER_SURVEY) == true
2644 || check_fwstate(&adapter->mlmepriv, _FW_LINKED) == false
2645 ) {
2646 goto set_timer;
2647 }
2648
2649
2650 tmp_s = (avg_signal_strength+(_alpha-1)*recvpriv->signal_strength);
2651 if (tmp_s % _alpha)
2652 tmp_s = tmp_s/_alpha + 1;
2653 else
2654 tmp_s = tmp_s/_alpha;
2655 if (tmp_s > 100)
2656 tmp_s = 100;
2657
2658 tmp_q = (avg_signal_qual+(_alpha-1)*recvpriv->signal_qual);
2659 if (tmp_q % _alpha)
2660 tmp_q = tmp_q/_alpha + 1;
2661 else
2662 tmp_q = tmp_q/_alpha;
2663 if (tmp_q > 100)
2664 tmp_q = 100;
2665
2666 recvpriv->signal_strength = tmp_s;
2667 recvpriv->rssi = (s8)translate_percentage_to_dbm(tmp_s);
2668 recvpriv->signal_qual = tmp_q;
2669
2670 #if defined(DBG_RX_SIGNAL_DISPLAY_PROCESSING) && 1
2671 DBG_871X(FUNC_ADPT_FMT" signal_strength:%3u, rssi:%3d, signal_qual:%3u"
2672 ", num_signal_strength:%u, num_signal_qual:%u"
2673 ", on_cur_ch_ms:%d"
2674 "\n"
2675 , FUNC_ADPT_ARG(adapter)
2676 , recvpriv->signal_strength
2677 , recvpriv->rssi
2678 , recvpriv->signal_qual
2679 , num_signal_strength, num_signal_qual
2680 , rtw_get_on_cur_ch_time(adapter) ? jiffies_to_msecs(jiffies - rtw_get_on_cur_ch_time(adapter)) : 0
2681 );
2682 #endif
2683 }
2684
2685set_timer:
2686 rtw_set_signal_stat_timer(recvpriv);
2687
2688}
2689