This source file includes following definitions.
- _rtw_init_sta_recv_priv
- _rtw_init_recv_priv
- _rtw_free_recv_priv
- _rtw_alloc_recvframe
- rtw_alloc_recvframe
- rtw_free_recvframe
- _rtw_enqueue_recvframe
- rtw_enqueue_recvframe
- rtw_free_recvframe_queue
- rtw_free_uc_swdec_pending_queue
- rtw_enqueue_recvbuf_to_head
- rtw_enqueue_recvbuf
- rtw_dequeue_recvbuf
- recvframe_chkmic
- decryptor
- portctrl
- recv_decache
- process_pwrbit_data
- process_wmmps_data
- count_rx_stats
- sta2sta_data_frame
- ap2sta_data_frame
- sta2ap_data_frame
- validate_recv_ctrl_frame
- validate_recv_mgnt_frame
- validate_recv_data_frame
- validate_80211w_mgmt
- dump_rx_packet
- validate_recv_frame
- wlanhdr_to_ethhdr
- recvframe_defrag
- recvframe_chk_defrag
- amsdu_to_msdu
- check_indicate_seq
- enqueue_reorder_recvframe
- recv_indicatepkts_pkt_loss_cnt
- recv_indicatepkts_in_order
- recv_indicatepkt_reorder
- rtw_reordering_ctrl_timeout_handler
- process_recv_indicatepkts
- recv_func_prehandle
- recv_func_posthandle
- recv_func
- rtw_recv_entry
- rtw_signal_stat_timer_hdl
1
2
3
4
5
6
7 #define _RTW_RECV_C_
8
9 #include <drv_types.h>
10 #include <rtw_debug.h>
11 #include <linux/jiffies.h>
12 #include <rtw_recv.h>
13
14 static u8 SNAP_ETH_TYPE_IPX[2] = {0x81, 0x37};
15 static u8 SNAP_ETH_TYPE_APPLETALK_AARP[2] = {0x80, 0xf3};
16
17 u8 rtw_rfc1042_header[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
18
19 u8 rtw_bridge_tunnel_header[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
20
21 static void rtw_signal_stat_timer_hdl(struct timer_list *t);
22
23 void _rtw_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv)
24 {
25 memset((u8 *)psta_recvpriv, 0, sizeof(struct sta_recv_priv));
26
27 spin_lock_init(&psta_recvpriv->lock);
28
29
30
31
32 _rtw_init_queue(&psta_recvpriv->defrag_q);
33 }
34
35 sint _rtw_init_recv_priv(struct recv_priv *precvpriv, struct adapter *padapter)
36 {
37 sint i;
38 union recv_frame *precvframe;
39 sint res = _SUCCESS;
40
41 spin_lock_init(&precvpriv->lock);
42
43 _rtw_init_queue(&precvpriv->free_recv_queue);
44 _rtw_init_queue(&precvpriv->recv_pending_queue);
45 _rtw_init_queue(&precvpriv->uc_swdec_pending_queue);
46
47 precvpriv->adapter = padapter;
48
49 precvpriv->free_recvframe_cnt = NR_RECVFRAME;
50
51 precvpriv->pallocated_frame_buf = vzalloc(NR_RECVFRAME * sizeof(union recv_frame) + RXFRAME_ALIGN_SZ);
52
53 if (!precvpriv->pallocated_frame_buf) {
54 res = _FAIL;
55 goto exit;
56 }
57
58 precvpriv->precv_frame_buf = (u8 *)N_BYTE_ALIGMENT((SIZE_PTR)(precvpriv->pallocated_frame_buf), RXFRAME_ALIGN_SZ);
59
60
61
62 precvframe = (union recv_frame *) precvpriv->precv_frame_buf;
63
64
65 for (i = 0; i < NR_RECVFRAME; i++) {
66 INIT_LIST_HEAD(&(precvframe->u.list));
67
68 list_add_tail(&(precvframe->u.list), &(precvpriv->free_recv_queue.queue));
69
70 rtw_os_recv_resource_alloc(padapter, precvframe);
71
72 precvframe->u.hdr.len = 0;
73
74 precvframe->u.hdr.adapter = padapter;
75 precvframe++;
76
77 }
78
79 res = rtw_hal_init_recv_priv(padapter);
80
81 timer_setup(&precvpriv->signal_stat_timer, rtw_signal_stat_timer_hdl,
82 0);
83
84 precvpriv->signal_stat_sampling_interval = 2000;
85
86 rtw_set_signal_stat_timer(precvpriv);
87
88 exit:
89 return res;
90 }
91
92 void _rtw_free_recv_priv(struct recv_priv *precvpriv)
93 {
94 struct adapter *padapter = precvpriv->adapter;
95
96 rtw_free_uc_swdec_pending_queue(padapter);
97
98 rtw_os_recv_resource_free(precvpriv);
99
100 if (precvpriv->pallocated_frame_buf)
101 vfree(precvpriv->pallocated_frame_buf);
102
103 rtw_hal_free_recv_priv(padapter);
104 }
105
106 union recv_frame *_rtw_alloc_recvframe(struct __queue *pfree_recv_queue)
107 {
108
109 union recv_frame *precvframe;
110 struct list_head *plist, *phead;
111 struct adapter *padapter;
112 struct recv_priv *precvpriv;
113
114 if (list_empty(&pfree_recv_queue->queue))
115 precvframe = NULL;
116 else {
117 phead = get_list_head(pfree_recv_queue);
118
119 plist = get_next(phead);
120
121 precvframe = (union recv_frame *)plist;
122
123 list_del_init(&precvframe->u.hdr.list);
124 padapter = precvframe->u.hdr.adapter;
125 if (padapter) {
126 precvpriv = &padapter->recvpriv;
127 if (pfree_recv_queue == &precvpriv->free_recv_queue)
128 precvpriv->free_recvframe_cnt--;
129 }
130 }
131 return precvframe;
132 }
133
134 union recv_frame *rtw_alloc_recvframe(struct __queue *pfree_recv_queue)
135 {
136 union recv_frame *precvframe;
137
138 spin_lock_bh(&pfree_recv_queue->lock);
139
140 precvframe = _rtw_alloc_recvframe(pfree_recv_queue);
141
142 spin_unlock_bh(&pfree_recv_queue->lock);
143
144 return precvframe;
145 }
146
147 int rtw_free_recvframe(union recv_frame *precvframe, struct __queue *pfree_recv_queue)
148 {
149 struct adapter *padapter = precvframe->u.hdr.adapter;
150 struct recv_priv *precvpriv = &padapter->recvpriv;
151
152 rtw_os_free_recvframe(precvframe);
153
154
155 spin_lock_bh(&pfree_recv_queue->lock);
156
157 list_del_init(&(precvframe->u.hdr.list));
158
159 precvframe->u.hdr.len = 0;
160
161 list_add_tail(&(precvframe->u.hdr.list), get_list_head(pfree_recv_queue));
162
163 if (padapter) {
164 if (pfree_recv_queue == &precvpriv->free_recv_queue)
165 precvpriv->free_recvframe_cnt++;
166 }
167 spin_unlock_bh(&pfree_recv_queue->lock);
168 return _SUCCESS;
169 }
170
171
172
173
174 sint _rtw_enqueue_recvframe(union recv_frame *precvframe, struct __queue *queue)
175 {
176
177 struct adapter *padapter = precvframe->u.hdr.adapter;
178 struct recv_priv *precvpriv = &padapter->recvpriv;
179
180
181 list_del_init(&(precvframe->u.hdr.list));
182
183
184 list_add_tail(&(precvframe->u.hdr.list), get_list_head(queue));
185
186 if (padapter)
187 if (queue == &precvpriv->free_recv_queue)
188 precvpriv->free_recvframe_cnt++;
189
190 return _SUCCESS;
191 }
192
193 sint rtw_enqueue_recvframe(union recv_frame *precvframe, struct __queue *queue)
194 {
195 sint ret;
196
197
198 spin_lock_bh(&queue->lock);
199 ret = _rtw_enqueue_recvframe(precvframe, queue);
200
201 spin_unlock_bh(&queue->lock);
202
203 return ret;
204 }
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224 void rtw_free_recvframe_queue(struct __queue *pframequeue, struct __queue *pfree_recv_queue)
225 {
226 union recv_frame *precvframe;
227 struct list_head *plist, *phead;
228
229 spin_lock(&pframequeue->lock);
230
231 phead = get_list_head(pframequeue);
232 plist = get_next(phead);
233
234 while (phead != plist) {
235 precvframe = (union recv_frame *)plist;
236
237 plist = get_next(plist);
238
239 rtw_free_recvframe(precvframe, pfree_recv_queue);
240 }
241
242 spin_unlock(&pframequeue->lock);
243 }
244
245 u32 rtw_free_uc_swdec_pending_queue(struct adapter *adapter)
246 {
247 u32 cnt = 0;
248 union recv_frame *pending_frame;
249 while ((pending_frame = rtw_alloc_recvframe(&adapter->recvpriv.uc_swdec_pending_queue))) {
250 rtw_free_recvframe(pending_frame, &adapter->recvpriv.free_recv_queue);
251 cnt++;
252 }
253
254 if (cnt)
255 DBG_871X(FUNC_ADPT_FMT" dequeue %d\n", FUNC_ADPT_ARG(adapter), cnt);
256
257 return cnt;
258 }
259
260
261 sint rtw_enqueue_recvbuf_to_head(struct recv_buf *precvbuf, struct __queue *queue)
262 {
263 spin_lock_bh(&queue->lock);
264
265 list_del_init(&precvbuf->list);
266 list_add(&precvbuf->list, get_list_head(queue));
267
268 spin_unlock_bh(&queue->lock);
269
270 return _SUCCESS;
271 }
272
273 sint rtw_enqueue_recvbuf(struct recv_buf *precvbuf, struct __queue *queue)
274 {
275 spin_lock_bh(&queue->lock);
276
277 list_del_init(&precvbuf->list);
278
279 list_add_tail(&precvbuf->list, get_list_head(queue));
280 spin_unlock_bh(&queue->lock);
281 return _SUCCESS;
282
283 }
284
285 struct recv_buf *rtw_dequeue_recvbuf(struct __queue *queue)
286 {
287 struct recv_buf *precvbuf;
288 struct list_head *plist, *phead;
289
290 spin_lock_bh(&queue->lock);
291
292 if (list_empty(&queue->queue))
293 precvbuf = NULL;
294 else {
295 phead = get_list_head(queue);
296
297 plist = get_next(phead);
298
299 precvbuf = LIST_CONTAINOR(plist, struct recv_buf, list);
300
301 list_del_init(&precvbuf->list);
302
303 }
304
305 spin_unlock_bh(&queue->lock);
306
307 return precvbuf;
308
309 }
310
311 sint recvframe_chkmic(struct adapter *adapter, union recv_frame *precvframe);
312 sint recvframe_chkmic(struct adapter *adapter, union recv_frame *precvframe)
313 {
314
315 sint i, res = _SUCCESS;
316 u32 datalen;
317 u8 miccode[8];
318 u8 bmic_err = false, brpt_micerror = true;
319 u8 *pframe, *payload, *pframemic;
320 u8 *mickey;
321
322 struct sta_info *stainfo;
323 struct rx_pkt_attrib *prxattrib = &precvframe->u.hdr.attrib;
324 struct security_priv *psecuritypriv = &adapter->securitypriv;
325
326 struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
327 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
328
329 stainfo = rtw_get_stainfo(&adapter->stapriv, &prxattrib->ta[0]);
330
331 if (prxattrib->encrypt == _TKIP_) {
332 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n recvframe_chkmic:prxattrib->encrypt == _TKIP_\n"));
333 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",
334 prxattrib->ra[0], prxattrib->ra[1], prxattrib->ra[2], prxattrib->ra[3], prxattrib->ra[4], prxattrib->ra[5]));
335
336
337 if (stainfo) {
338 if (IS_MCAST(prxattrib->ra)) {
339
340
341
342 mickey = &psecuritypriv->dot118021XGrprxmickey[prxattrib->key_index].skey[0];
343
344 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n recvframe_chkmic: bcmc key\n"));
345
346
347
348 if (psecuritypriv->binstallGrpkey == false) {
349 res = _FAIL;
350 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n recvframe_chkmic:didn't install group key!!!!!!!!!!\n"));
351 DBG_871X("\n recvframe_chkmic:didn't install group key!!!!!!!!!!\n");
352 goto exit;
353 }
354 } else {
355 mickey = &stainfo->dot11tkiprxmickey.skey[0];
356 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n recvframe_chkmic: unicast key\n"));
357 }
358
359 datalen = precvframe->u.hdr.len-prxattrib->hdrlen-prxattrib->iv_len-prxattrib->icv_len-8;
360 pframe = precvframe->u.hdr.rx_data;
361 payload = pframe+prxattrib->hdrlen+prxattrib->iv_len;
362
363 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n prxattrib->iv_len =%d prxattrib->icv_len =%d\n", prxattrib->iv_len, prxattrib->icv_len));
364
365
366 rtw_seccalctkipmic(mickey, pframe, payload, datalen, &miccode[0], (unsigned char)prxattrib->priority);
367
368 pframemic = payload+datalen;
369
370 bmic_err = false;
371
372 for (i = 0; i < 8; i++) {
373 if (miccode[i] != *(pframemic+i)) {
374 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvframe_chkmic:miccode[%d](%02x) != *(pframemic+%d)(%02x) ", i, miccode[i], i, *(pframemic+i)));
375 bmic_err = true;
376 }
377 }
378
379
380 if (bmic_err == true) {
381
382 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",
383 *(pframemic-8), *(pframemic-7), *(pframemic-6), *(pframemic-5), *(pframemic-4), *(pframemic-3), *(pframemic-2), *(pframemic-1)));
384 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",
385 *(pframemic-16), *(pframemic-15), *(pframemic-14), *(pframemic-13), *(pframemic-12), *(pframemic-11), *(pframemic-10), *(pframemic-9)));
386
387 {
388 uint i;
389 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n ======demp packet (len =%d) ======\n", precvframe->u.hdr.len));
390 for (i = 0; i < precvframe->u.hdr.len; i = i+8) {
391 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x",
392 *(precvframe->u.hdr.rx_data+i), *(precvframe->u.hdr.rx_data+i+1),
393 *(precvframe->u.hdr.rx_data+i+2), *(precvframe->u.hdr.rx_data+i+3),
394 *(precvframe->u.hdr.rx_data+i+4), *(precvframe->u.hdr.rx_data+i+5),
395 *(precvframe->u.hdr.rx_data+i+6), *(precvframe->u.hdr.rx_data+i+7)));
396 }
397 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n ======demp packet end [len =%d]======\n", precvframe->u.hdr.len));
398 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n hrdlen =%d,\n", prxattrib->hdrlen));
399 }
400
401 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("ra = 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x psecuritypriv->binstallGrpkey =%d ",
402 prxattrib->ra[0], prxattrib->ra[1], prxattrib->ra[2],
403 prxattrib->ra[3], prxattrib->ra[4], prxattrib->ra[5], psecuritypriv->binstallGrpkey));
404
405
406
407 if ((IS_MCAST(prxattrib->ra) == true) && (prxattrib->key_index != pmlmeinfo->key_index))
408 brpt_micerror = false;
409
410 if ((prxattrib->bdecrypted == true) && (brpt_micerror == true)) {
411 rtw_handle_tkip_mic_err(adapter, (u8)IS_MCAST(prxattrib->ra));
412 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" mic error :prxattrib->bdecrypted =%d ", prxattrib->bdecrypted));
413 DBG_871X(" mic error :prxattrib->bdecrypted =%d\n", prxattrib->bdecrypted);
414 } else {
415 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" mic error :prxattrib->bdecrypted =%d ", prxattrib->bdecrypted));
416 DBG_871X(" mic error :prxattrib->bdecrypted =%d\n", prxattrib->bdecrypted);
417 }
418
419 res = _FAIL;
420
421 } else {
422
423 if ((psecuritypriv->bcheck_grpkey == false) && (IS_MCAST(prxattrib->ra) == true)) {
424 psecuritypriv->bcheck_grpkey = true;
425 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("psecuritypriv->bcheck_grpkey =true"));
426 }
427 }
428
429 } else
430 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvframe_chkmic: rtw_get_stainfo == NULL!!!\n"));
431
432 recvframe_pull_tail(precvframe, 8);
433
434 }
435
436 exit:
437 return res;
438
439 }
440
441
442 union recv_frame *decryptor(struct adapter *padapter, union recv_frame *precv_frame);
443 union recv_frame *decryptor(struct adapter *padapter, union recv_frame *precv_frame)
444 {
445
446 struct rx_pkt_attrib *prxattrib = &precv_frame->u.hdr.attrib;
447 struct security_priv *psecuritypriv = &padapter->securitypriv;
448 union recv_frame *return_packet = precv_frame;
449 u32 res = _SUCCESS;
450
451 DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt);
452
453 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("prxstat->decrypted =%x prxattrib->encrypt = 0x%03x\n", prxattrib->bdecrypted, prxattrib->encrypt));
454
455 if (prxattrib->encrypt > 0) {
456 u8 *iv = precv_frame->u.hdr.rx_data+prxattrib->hdrlen;
457 prxattrib->key_index = (((iv[3])>>6)&0x3);
458
459 if (prxattrib->key_index > WEP_KEYS) {
460 DBG_871X("prxattrib->key_index(%d) > WEP_KEYS\n", prxattrib->key_index);
461
462 switch (prxattrib->encrypt) {
463 case _WEP40_:
464 case _WEP104_:
465 prxattrib->key_index = psecuritypriv->dot11PrivacyKeyIndex;
466 break;
467 case _TKIP_:
468 case _AES_:
469 default:
470 prxattrib->key_index = psecuritypriv->dot118021XGrpKeyid;
471 break;
472 }
473 }
474 }
475
476 if ((prxattrib->encrypt > 0) && ((prxattrib->bdecrypted == 0) || (psecuritypriv->sw_decrypt == true))) {
477 psecuritypriv->hw_decrypted = false;
478
479 #ifdef DBG_RX_DECRYPTOR
480 DBG_871X("[%s] %d:prxstat->bdecrypted:%d, prxattrib->encrypt:%d, Setting psecuritypriv->hw_decrypted = %d\n",
481 __func__,
482 __LINE__,
483 prxattrib->bdecrypted,
484 prxattrib->encrypt,
485 psecuritypriv->hw_decrypted);
486 #endif
487
488 switch (prxattrib->encrypt) {
489 case _WEP40_:
490 case _WEP104_:
491 DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_wep);
492 rtw_wep_decrypt(padapter, (u8 *)precv_frame);
493 break;
494 case _TKIP_:
495 DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_tkip);
496 res = rtw_tkip_decrypt(padapter, (u8 *)precv_frame);
497 break;
498 case _AES_:
499 DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_aes);
500 res = rtw_aes_decrypt(padapter, (u8 *)precv_frame);
501 break;
502 default:
503 break;
504 }
505 } else if (prxattrib->bdecrypted == 1
506 && prxattrib->encrypt > 0
507 && (psecuritypriv->busetkipkey == 1 || prxattrib->encrypt != _TKIP_)
508 ) {
509 DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_hw);
510
511 psecuritypriv->hw_decrypted = true;
512 #ifdef DBG_RX_DECRYPTOR
513 DBG_871X("[%s] %d:prxstat->bdecrypted:%d, prxattrib->encrypt:%d, Setting psecuritypriv->hw_decrypted = %d\n",
514 __func__,
515 __LINE__,
516 prxattrib->bdecrypted,
517 prxattrib->encrypt,
518 psecuritypriv->hw_decrypted);
519
520 #endif
521 } else {
522 DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_unknown);
523 #ifdef DBG_RX_DECRYPTOR
524 DBG_871X("[%s] %d:prxstat->bdecrypted:%d, prxattrib->encrypt:%d, Setting psecuritypriv->hw_decrypted = %d\n",
525 __func__,
526 __LINE__,
527 prxattrib->bdecrypted,
528 prxattrib->encrypt,
529 psecuritypriv->hw_decrypted);
530 #endif
531 }
532
533 if (res == _FAIL) {
534 rtw_free_recvframe(return_packet, &padapter->recvpriv.free_recv_queue);
535 return_packet = NULL;
536 } else
537 prxattrib->bdecrypted = true;
538
539 return return_packet;
540 }
541
542
543 union recv_frame *portctrl(struct adapter *adapter, union recv_frame *precv_frame);
544 union recv_frame *portctrl(struct adapter *adapter, union recv_frame *precv_frame)
545 {
546 u8 *psta_addr = NULL;
547 u8 *ptr;
548 uint auth_alg;
549 struct recv_frame_hdr *pfhdr;
550 struct sta_info *psta;
551 struct sta_priv *pstapriv;
552 union recv_frame *prtnframe;
553 u16 ether_type = 0;
554 u16 eapol_type = 0x888e;
555 struct rx_pkt_attrib *pattrib;
556
557 pstapriv = &adapter->stapriv;
558
559 auth_alg = adapter->securitypriv.dot11AuthAlgrthm;
560
561 ptr = get_recvframe_data(precv_frame);
562 pfhdr = &precv_frame->u.hdr;
563 pattrib = &pfhdr->attrib;
564 psta_addr = pattrib->ta;
565
566 prtnframe = NULL;
567
568 psta = rtw_get_stainfo(pstapriv, psta_addr);
569
570 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("########portctrl:adapter->securitypriv.dot11AuthAlgrthm =%d\n", adapter->securitypriv.dot11AuthAlgrthm));
571
572 if (auth_alg == 2) {
573 if ((psta) && (psta->ieee8021x_blocked)) {
574 __be16 be_tmp;
575
576
577
578 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("########portctrl:psta->ieee8021x_blocked == 1\n"));
579
580 prtnframe = precv_frame;
581
582
583 ptr = ptr+pfhdr->attrib.hdrlen+pfhdr->attrib.iv_len+LLC_HEADER_SIZE;
584 memcpy(&be_tmp, ptr, 2);
585 ether_type = ntohs(be_tmp);
586
587 if (ether_type == eapol_type)
588 prtnframe = precv_frame;
589 else {
590
591 rtw_free_recvframe(precv_frame, &adapter->recvpriv.free_recv_queue);
592 prtnframe = NULL;
593 }
594 } else {
595
596
597 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("########portctrl:psta->ieee8021x_blocked == 0\n"));
598 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("portctrl:precv_frame->hdr.attrib.privacy =%x\n", precv_frame->u.hdr.attrib.privacy));
599
600 if (pattrib->bdecrypted == 0)
601 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("portctrl:prxstat->decrypted =%x\n", pattrib->bdecrypted));
602
603 prtnframe = precv_frame;
604
605
606
607
608
609
610
611
612
613
614 }
615 } else
616 prtnframe = precv_frame;
617
618 return prtnframe;
619 }
620
621 sint recv_decache(union recv_frame *precv_frame, u8 bretry, struct stainfo_rxcache *prxcache);
622 sint recv_decache(union recv_frame *precv_frame, u8 bretry, struct stainfo_rxcache *prxcache)
623 {
624 sint tid = precv_frame->u.hdr.attrib.priority;
625
626 u16 seq_ctrl = ((precv_frame->u.hdr.attrib.seq_num&0xffff) << 4) |
627 (precv_frame->u.hdr.attrib.frag_num & 0xf);
628
629 if (tid > 15) {
630 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("recv_decache, (tid>15)! seq_ctrl = 0x%x, tid = 0x%x\n", seq_ctrl, tid));
631
632 return _FAIL;
633 }
634
635 if (1) {
636 if (seq_ctrl == prxcache->tid_rxseq[tid]) {
637 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]));
638
639 return _FAIL;
640 }
641 }
642
643 prxcache->tid_rxseq[tid] = seq_ctrl;
644
645 return _SUCCESS;
646
647 }
648
649 void process_pwrbit_data(struct adapter *padapter, union recv_frame *precv_frame);
650 void process_pwrbit_data(struct adapter *padapter, union recv_frame *precv_frame)
651 {
652 unsigned char pwrbit;
653 u8 *ptr = precv_frame->u.hdr.rx_data;
654 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
655 struct sta_priv *pstapriv = &padapter->stapriv;
656 struct sta_info *psta = NULL;
657
658 psta = rtw_get_stainfo(pstapriv, pattrib->src);
659
660 pwrbit = GetPwrMgt(ptr);
661
662 if (psta) {
663 if (pwrbit) {
664 if (!(psta->state & WIFI_SLEEP_STATE)) {
665
666
667
668 stop_sta_xmit(padapter, psta);
669
670
671 }
672 } else {
673 if (psta->state & WIFI_SLEEP_STATE) {
674
675
676
677 wakeup_sta_to_xmit(padapter, psta);
678
679
680 }
681 }
682
683 }
684 }
685
686 void process_wmmps_data(struct adapter *padapter, union recv_frame *precv_frame);
687 void process_wmmps_data(struct adapter *padapter, union recv_frame *precv_frame)
688 {
689 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
690 struct sta_priv *pstapriv = &padapter->stapriv;
691 struct sta_info *psta = NULL;
692
693 psta = rtw_get_stainfo(pstapriv, pattrib->src);
694
695 if (!psta)
696 return;
697
698 if (!psta->qos_option)
699 return;
700
701 if (!(psta->qos_info&0xf))
702 return;
703
704 if (psta->state&WIFI_SLEEP_STATE) {
705 u8 wmmps_ac = 0;
706
707 switch (pattrib->priority) {
708 case 1:
709 case 2:
710 wmmps_ac = psta->uapsd_bk&BIT(1);
711 break;
712 case 4:
713 case 5:
714 wmmps_ac = psta->uapsd_vi&BIT(1);
715 break;
716 case 6:
717 case 7:
718 wmmps_ac = psta->uapsd_vo&BIT(1);
719 break;
720 case 0:
721 case 3:
722 default:
723 wmmps_ac = psta->uapsd_be&BIT(1);
724 break;
725 }
726
727 if (wmmps_ac) {
728 if (psta->sleepq_ac_len > 0)
729
730 xmit_delivery_enabled_frames(padapter, psta);
731 else
732
733 issue_qos_nulldata(padapter, psta->hwaddr, (u16)pattrib->priority, 0, 0);
734 }
735 }
736 }
737
738 void count_rx_stats(struct adapter *padapter, union recv_frame *prframe, struct sta_info *sta);
739 void count_rx_stats(struct adapter *padapter, union recv_frame *prframe, struct sta_info *sta)
740 {
741 int sz;
742 struct sta_info *psta = NULL;
743 struct stainfo_stats *pstats = NULL;
744 struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib;
745 struct recv_priv *precvpriv = &padapter->recvpriv;
746
747 sz = get_recvframe_len(prframe);
748 precvpriv->rx_bytes += sz;
749
750 padapter->mlmepriv.LinkDetectInfo.NumRxOkInPeriod++;
751
752 if ((!MacAddr_isBcst(pattrib->dst)) && (!IS_MCAST(pattrib->dst))) {
753 padapter->mlmepriv.LinkDetectInfo.NumRxUnicastOkInPeriod++;
754 }
755
756 if (sta)
757 psta = sta;
758 else
759 psta = prframe->u.hdr.psta;
760
761 if (psta) {
762 pstats = &psta->sta_stats;
763
764 pstats->rx_data_pkts++;
765 pstats->rx_bytes += sz;
766 }
767
768 traffic_check_for_leave_lps(padapter, false, 0);
769 }
770
771 sint sta2sta_data_frame(
772 struct adapter *adapter,
773 union recv_frame *precv_frame,
774 struct sta_info **psta
775 );
776 sint sta2sta_data_frame(
777 struct adapter *adapter,
778 union recv_frame *precv_frame,
779 struct sta_info **psta
780 )
781 {
782 u8 *ptr = precv_frame->u.hdr.rx_data;
783 sint ret = _SUCCESS;
784 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
785 struct sta_priv *pstapriv = &adapter->stapriv;
786 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
787 u8 *mybssid = get_bssid(pmlmepriv);
788 u8 *myhwaddr = myid(&adapter->eeprompriv);
789 u8 *sta_addr = NULL;
790 sint bmcast = IS_MCAST(pattrib->dst);
791
792
793
794 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) ||
795 (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true)) {
796
797
798 if (!memcmp(myhwaddr, pattrib->src, ETH_ALEN)) {
799 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" SA ==myself\n"));
800 ret = _FAIL;
801 goto exit;
802 }
803
804 if ((memcmp(myhwaddr, pattrib->dst, ETH_ALEN)) && (!bmcast)) {
805 ret = _FAIL;
806 goto exit;
807 }
808
809 if (!memcmp(pattrib->bssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
810 !memcmp(mybssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
811 (memcmp(pattrib->bssid, mybssid, ETH_ALEN))) {
812 ret = _FAIL;
813 goto exit;
814 }
815
816 sta_addr = pattrib->src;
817
818 } else if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
819
820 if (memcmp(pattrib->bssid, pattrib->src, ETH_ALEN)) {
821 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("bssid != TA under STATION_MODE; drop pkt\n"));
822 ret = _FAIL;
823 goto exit;
824 }
825
826 sta_addr = pattrib->bssid;
827 } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) {
828 if (bmcast) {
829
830 if (!IS_MCAST(pattrib->bssid)) {
831 ret = _FAIL;
832 goto exit;
833 }
834 } else {
835
836 if (memcmp(pattrib->bssid, pattrib->dst, ETH_ALEN)) {
837 ret = _FAIL;
838 goto exit;
839 }
840
841 sta_addr = pattrib->src;
842 }
843
844 } else if (check_fwstate(pmlmepriv, WIFI_MP_STATE) == true) {
845 memcpy(pattrib->dst, GetAddr1Ptr(ptr), ETH_ALEN);
846 memcpy(pattrib->src, GetAddr2Ptr(ptr), ETH_ALEN);
847 memcpy(pattrib->bssid, GetAddr3Ptr(ptr), ETH_ALEN);
848 memcpy(pattrib->ra, pattrib->dst, ETH_ALEN);
849 memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
850
851 sta_addr = mybssid;
852 } else
853 ret = _FAIL;
854
855
856
857 if (bmcast)
858 *psta = rtw_get_bcmc_stainfo(adapter);
859 else
860 *psta = rtw_get_stainfo(pstapriv, sta_addr);
861
862 if (!*psta) {
863 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("can't get psta under sta2sta_data_frame ; drop pkt\n"));
864 ret = _FAIL;
865 goto exit;
866 }
867
868 exit:
869 return ret;
870 }
871
872 sint ap2sta_data_frame(
873 struct adapter *adapter,
874 union recv_frame *precv_frame,
875 struct sta_info **psta);
876 sint ap2sta_data_frame(
877 struct adapter *adapter,
878 union recv_frame *precv_frame,
879 struct sta_info **psta)
880 {
881 u8 *ptr = precv_frame->u.hdr.rx_data;
882 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
883 sint ret = _SUCCESS;
884 struct sta_priv *pstapriv = &adapter->stapriv;
885 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
886 u8 *mybssid = get_bssid(pmlmepriv);
887 u8 *myhwaddr = myid(&adapter->eeprompriv);
888 sint bmcast = IS_MCAST(pattrib->dst);
889
890 if ((check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true)
891 && (check_fwstate(pmlmepriv, _FW_LINKED) == true
892 || check_fwstate(pmlmepriv, _FW_UNDER_LINKING) == true)
893 ) {
894
895
896 if (!memcmp(myhwaddr, pattrib->src, ETH_ALEN)) {
897 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" SA ==myself\n"));
898 #ifdef DBG_RX_DROP_FRAME
899 DBG_871X("DBG_RX_DROP_FRAME %s SA ="MAC_FMT", myhwaddr ="MAC_FMT"\n",
900 __func__, MAC_ARG(pattrib->src), MAC_ARG(myhwaddr));
901 #endif
902 ret = _FAIL;
903 goto exit;
904 }
905
906
907 if ((memcmp(myhwaddr, pattrib->dst, ETH_ALEN)) && (!bmcast)) {
908 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
909 (" ap2sta_data_frame: compare DA fail; DA ="MAC_FMT"\n", MAC_ARG(pattrib->dst)));
910 #ifdef DBG_RX_DROP_FRAME
911 DBG_871X("DBG_RX_DROP_FRAME %s DA ="MAC_FMT"\n", __func__, MAC_ARG(pattrib->dst));
912 #endif
913 ret = _FAIL;
914 goto exit;
915 }
916
917
918
919 if (!memcmp(pattrib->bssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
920 !memcmp(mybssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
921 (memcmp(pattrib->bssid, mybssid, ETH_ALEN))) {
922 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
923 (" ap2sta_data_frame: compare BSSID fail ; BSSID ="MAC_FMT"\n", MAC_ARG(pattrib->bssid)));
924 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("mybssid ="MAC_FMT"\n", MAC_ARG(mybssid)));
925 #ifdef DBG_RX_DROP_FRAME
926 DBG_871X("DBG_RX_DROP_FRAME %s BSSID ="MAC_FMT", mybssid ="MAC_FMT"\n",
927 __func__, MAC_ARG(pattrib->bssid), MAC_ARG(mybssid));
928 DBG_871X("this adapter = %d, buddy adapter = %d\n", adapter->adapter_type, adapter->pbuddystruct adapter->adapter_type);
929 #endif
930
931 if (!bmcast) {
932 DBG_871X("issue_deauth to the nonassociated ap =" MAC_FMT " for the reason(7)\n", MAC_ARG(pattrib->bssid));
933 issue_deauth(adapter, pattrib->bssid, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
934 }
935
936 ret = _FAIL;
937 goto exit;
938 }
939
940 if (bmcast)
941 *psta = rtw_get_bcmc_stainfo(adapter);
942 else
943 *psta = rtw_get_stainfo(pstapriv, pattrib->bssid);
944
945 if (!*psta) {
946 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("ap2sta: can't get psta under STATION_MODE ; drop pkt\n"));
947 #ifdef DBG_RX_DROP_FRAME
948 DBG_871X("DBG_RX_DROP_FRAME %s can't get psta under STATION_MODE ; drop pkt\n", __func__);
949 #endif
950 ret = _FAIL;
951 goto exit;
952 }
953
954 if ((GetFrameSubType(ptr) & WIFI_QOS_DATA_TYPE) == WIFI_QOS_DATA_TYPE) {
955 }
956
957 if (GetFrameSubType(ptr) & BIT(6)) {
958
959 count_rx_stats(adapter, precv_frame, *psta);
960 ret = RTW_RX_HANDLED;
961 goto exit;
962 }
963
964 } else if ((check_fwstate(pmlmepriv, WIFI_MP_STATE) == true) &&
965 (check_fwstate(pmlmepriv, _FW_LINKED) == true)) {
966 memcpy(pattrib->dst, GetAddr1Ptr(ptr), ETH_ALEN);
967 memcpy(pattrib->src, GetAddr2Ptr(ptr), ETH_ALEN);
968 memcpy(pattrib->bssid, GetAddr3Ptr(ptr), ETH_ALEN);
969 memcpy(pattrib->ra, pattrib->dst, ETH_ALEN);
970 memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
971
972
973 memcpy(pattrib->bssid, mybssid, ETH_ALEN);
974
975
976 *psta = rtw_get_stainfo(pstapriv, pattrib->bssid);
977 if (!*psta) {
978 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("can't get psta under MP_MODE ; drop pkt\n"));
979 #ifdef DBG_RX_DROP_FRAME
980 DBG_871X("DBG_RX_DROP_FRAME %s can't get psta under WIFI_MP_STATE ; drop pkt\n", __func__);
981 #endif
982 ret = _FAIL;
983 goto exit;
984 }
985
986
987 } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) {
988
989 ret = RTW_RX_HANDLED;
990 goto exit;
991 } else {
992 if (!memcmp(myhwaddr, pattrib->dst, ETH_ALEN) && (!bmcast)) {
993 *psta = rtw_get_stainfo(pstapriv, pattrib->bssid);
994 if (!*psta) {
995
996
997 static unsigned long send_issue_deauth_time;
998
999
1000
1001 if (jiffies_to_msecs(jiffies - send_issue_deauth_time) > 10000 || send_issue_deauth_time == 0) {
1002 send_issue_deauth_time = jiffies;
1003
1004 DBG_871X("issue_deauth to the ap =" MAC_FMT " for the reason(7)\n", MAC_ARG(pattrib->bssid));
1005
1006 issue_deauth(adapter, pattrib->bssid, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
1007 }
1008 }
1009 }
1010
1011 ret = _FAIL;
1012 #ifdef DBG_RX_DROP_FRAME
1013 DBG_871X("DBG_RX_DROP_FRAME %s fw_state:0x%x\n", __func__, get_fwstate(pmlmepriv));
1014 #endif
1015 }
1016
1017 exit:
1018 return ret;
1019 }
1020
1021 sint sta2ap_data_frame(
1022 struct adapter *adapter,
1023 union recv_frame *precv_frame,
1024 struct sta_info **psta);
1025 sint sta2ap_data_frame(
1026 struct adapter *adapter,
1027 union recv_frame *precv_frame,
1028 struct sta_info **psta)
1029 {
1030 u8 *ptr = precv_frame->u.hdr.rx_data;
1031 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
1032 struct sta_priv *pstapriv = &adapter->stapriv;
1033 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1034 unsigned char *mybssid = get_bssid(pmlmepriv);
1035 sint ret = _SUCCESS;
1036
1037 if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) {
1038
1039 if (memcmp(pattrib->bssid, mybssid, ETH_ALEN)) {
1040 ret = _FAIL;
1041 goto exit;
1042 }
1043
1044 *psta = rtw_get_stainfo(pstapriv, pattrib->src);
1045 if (!*psta) {
1046 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("can't get psta under AP_MODE; drop pkt\n"));
1047 DBG_871X("issue_deauth to sta =" MAC_FMT " for the reason(7)\n", MAC_ARG(pattrib->src));
1048
1049 issue_deauth(adapter, pattrib->src, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
1050
1051 ret = RTW_RX_HANDLED;
1052 goto exit;
1053 }
1054
1055 process_pwrbit_data(adapter, precv_frame);
1056
1057 if ((GetFrameSubType(ptr) & WIFI_QOS_DATA_TYPE) == WIFI_QOS_DATA_TYPE) {
1058 process_wmmps_data(adapter, precv_frame);
1059 }
1060
1061 if (GetFrameSubType(ptr) & BIT(6)) {
1062
1063 count_rx_stats(adapter, precv_frame, *psta);
1064 ret = RTW_RX_HANDLED;
1065 goto exit;
1066 }
1067 } else {
1068 u8 *myhwaddr = myid(&adapter->eeprompriv);
1069 if (memcmp(pattrib->ra, myhwaddr, ETH_ALEN)) {
1070 ret = RTW_RX_HANDLED;
1071 goto exit;
1072 }
1073 DBG_871X("issue_deauth to sta =" MAC_FMT " for the reason(7)\n", MAC_ARG(pattrib->src));
1074 issue_deauth(adapter, pattrib->src, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
1075 ret = RTW_RX_HANDLED;
1076 goto exit;
1077 }
1078
1079 exit:
1080 return ret;
1081 }
1082
1083 sint validate_recv_ctrl_frame(struct adapter *padapter, union recv_frame *precv_frame);
1084 sint validate_recv_ctrl_frame(struct adapter *padapter, union recv_frame *precv_frame)
1085 {
1086 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
1087 struct sta_priv *pstapriv = &padapter->stapriv;
1088 u8 *pframe = precv_frame->u.hdr.rx_data;
1089 struct sta_info *psta = NULL;
1090
1091
1092
1093
1094 if (GetFrameType(pframe) != WIFI_CTRL_TYPE)
1095 return _FAIL;
1096
1097
1098 if (memcmp(GetAddr1Ptr(pframe), myid(&padapter->eeprompriv), ETH_ALEN))
1099 return _FAIL;
1100
1101 psta = rtw_get_stainfo(pstapriv, GetAddr2Ptr(pframe));
1102 if (!psta)
1103 return _FAIL;
1104
1105
1106 psta->sta_stats.rx_ctrl_pkts++;
1107
1108
1109 if (GetFrameSubType(pframe) == WIFI_PSPOLL) {
1110 u16 aid;
1111 u8 wmmps_ac = 0;
1112
1113 aid = GetAid(pframe);
1114 if (psta->aid != aid)
1115 return _FAIL;
1116
1117 switch (pattrib->priority) {
1118 case 1:
1119 case 2:
1120 wmmps_ac = psta->uapsd_bk&BIT(0);
1121 break;
1122 case 4:
1123 case 5:
1124 wmmps_ac = psta->uapsd_vi&BIT(0);
1125 break;
1126 case 6:
1127 case 7:
1128 wmmps_ac = psta->uapsd_vo&BIT(0);
1129 break;
1130 case 0:
1131 case 3:
1132 default:
1133 wmmps_ac = psta->uapsd_be&BIT(0);
1134 break;
1135 }
1136
1137 if (wmmps_ac)
1138 return _FAIL;
1139
1140 if (psta->state & WIFI_STA_ALIVE_CHK_STATE) {
1141 DBG_871X("%s alive check-rx ps-poll\n", __func__);
1142 psta->expire_to = pstapriv->expire_to;
1143 psta->state ^= WIFI_STA_ALIVE_CHK_STATE;
1144 }
1145
1146 if ((psta->state&WIFI_SLEEP_STATE) && (pstapriv->sta_dz_bitmap&BIT(psta->aid))) {
1147 struct list_head *xmitframe_plist, *xmitframe_phead;
1148 struct xmit_frame *pxmitframe = NULL;
1149 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1150
1151
1152 spin_lock_bh(&pxmitpriv->lock);
1153
1154 xmitframe_phead = get_list_head(&psta->sleep_q);
1155 xmitframe_plist = get_next(xmitframe_phead);
1156
1157 if (xmitframe_phead != xmitframe_plist) {
1158 pxmitframe = LIST_CONTAINOR(xmitframe_plist, struct xmit_frame, list);
1159
1160 xmitframe_plist = get_next(xmitframe_plist);
1161
1162 list_del_init(&pxmitframe->list);
1163
1164 psta->sleepq_len--;
1165
1166 if (psta->sleepq_len > 0)
1167 pxmitframe->attrib.mdata = 1;
1168 else
1169 pxmitframe->attrib.mdata = 0;
1170
1171 pxmitframe->attrib.triggered = 1;
1172
1173
1174
1175 rtw_hal_xmitframe_enqueue(padapter, pxmitframe);
1176
1177 if (psta->sleepq_len == 0) {
1178 pstapriv->tim_bitmap &= ~BIT(psta->aid);
1179
1180
1181
1182
1183
1184 update_beacon(padapter, _TIM_IE_, NULL, true);
1185 }
1186
1187
1188 spin_unlock_bh(&pxmitpriv->lock);
1189
1190 } else {
1191
1192 spin_unlock_bh(&pxmitpriv->lock);
1193
1194
1195 if (pstapriv->tim_bitmap&BIT(psta->aid)) {
1196 if (psta->sleepq_len == 0) {
1197 DBG_871X("no buffered packets to xmit\n");
1198
1199
1200 issue_nulldata_in_interrupt(padapter, psta->hwaddr);
1201 } else {
1202 DBG_871X("error!psta->sleepq_len =%d\n", psta->sleepq_len);
1203 psta->sleepq_len = 0;
1204 }
1205
1206 pstapriv->tim_bitmap &= ~BIT(psta->aid);
1207
1208
1209
1210 update_beacon(padapter, _TIM_IE_, NULL, true);
1211 }
1212 }
1213 }
1214 }
1215
1216 return _FAIL;
1217
1218 }
1219
1220 union recv_frame *recvframe_chk_defrag(struct adapter *padapter, union recv_frame *precv_frame);
1221 sint validate_recv_mgnt_frame(struct adapter *padapter, union recv_frame *precv_frame);
1222 sint validate_recv_mgnt_frame(struct adapter *padapter, union recv_frame *precv_frame)
1223 {
1224
1225
1226 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("+validate_recv_mgnt_frame\n"));
1227
1228 precv_frame = recvframe_chk_defrag(padapter, precv_frame);
1229 if (!precv_frame) {
1230 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("%s: fragment packet\n", __func__));
1231 return _SUCCESS;
1232 }
1233
1234 {
1235
1236 struct sta_info *psta = rtw_get_stainfo(&padapter->stapriv, GetAddr2Ptr(precv_frame->u.hdr.rx_data));
1237 if (psta) {
1238 psta->sta_stats.rx_mgnt_pkts++;
1239 if (GetFrameSubType(precv_frame->u.hdr.rx_data) == WIFI_BEACON)
1240 psta->sta_stats.rx_beacon_pkts++;
1241 else if (GetFrameSubType(precv_frame->u.hdr.rx_data) == WIFI_PROBEREQ)
1242 psta->sta_stats.rx_probereq_pkts++;
1243 else if (GetFrameSubType(precv_frame->u.hdr.rx_data) == WIFI_PROBERSP) {
1244 if (!memcmp(padapter->eeprompriv.mac_addr, GetAddr1Ptr(precv_frame->u.hdr.rx_data), ETH_ALEN))
1245 psta->sta_stats.rx_probersp_pkts++;
1246 else if (is_broadcast_mac_addr(GetAddr1Ptr(precv_frame->u.hdr.rx_data))
1247 || is_multicast_mac_addr(GetAddr1Ptr(precv_frame->u.hdr.rx_data)))
1248 psta->sta_stats.rx_probersp_bm_pkts++;
1249 else
1250 psta->sta_stats.rx_probersp_uo_pkts++;
1251 }
1252 }
1253 }
1254
1255 mgt_dispatcher(padapter, precv_frame);
1256
1257 return _SUCCESS;
1258
1259 }
1260
1261 sint validate_recv_data_frame(struct adapter *adapter, union recv_frame *precv_frame);
1262 sint validate_recv_data_frame(struct adapter *adapter, union recv_frame *precv_frame)
1263 {
1264 u8 bretry;
1265 u8 *psa, *pda, *pbssid;
1266 struct sta_info *psta = NULL;
1267 u8 *ptr = precv_frame->u.hdr.rx_data;
1268 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
1269 struct security_priv *psecuritypriv = &adapter->securitypriv;
1270 sint ret = _SUCCESS;
1271
1272 bretry = GetRetry(ptr);
1273 pda = get_da(ptr);
1274 psa = get_sa(ptr);
1275 pbssid = get_hdr_bssid(ptr);
1276
1277 if (!pbssid) {
1278 #ifdef DBG_RX_DROP_FRAME
1279 DBG_871X("DBG_RX_DROP_FRAME %s pbssid == NULL\n", __func__);
1280 #endif
1281 ret = _FAIL;
1282 goto exit;
1283 }
1284
1285 memcpy(pattrib->dst, pda, ETH_ALEN);
1286 memcpy(pattrib->src, psa, ETH_ALEN);
1287
1288 memcpy(pattrib->bssid, pbssid, ETH_ALEN);
1289
1290 switch (pattrib->to_fr_ds) {
1291 case 0:
1292 memcpy(pattrib->ra, pda, ETH_ALEN);
1293 memcpy(pattrib->ta, psa, ETH_ALEN);
1294 ret = sta2sta_data_frame(adapter, precv_frame, &psta);
1295 break;
1296
1297 case 1:
1298 memcpy(pattrib->ra, pda, ETH_ALEN);
1299 memcpy(pattrib->ta, pbssid, ETH_ALEN);
1300 ret = ap2sta_data_frame(adapter, precv_frame, &psta);
1301 break;
1302
1303 case 2:
1304 memcpy(pattrib->ra, pbssid, ETH_ALEN);
1305 memcpy(pattrib->ta, psa, ETH_ALEN);
1306 ret = sta2ap_data_frame(adapter, precv_frame, &psta);
1307 break;
1308
1309 case 3:
1310 memcpy(pattrib->ra, GetAddr1Ptr(ptr), ETH_ALEN);
1311 memcpy(pattrib->ta, GetAddr2Ptr(ptr), ETH_ALEN);
1312 ret = _FAIL;
1313 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" case 3\n"));
1314 break;
1315
1316 default:
1317 ret = _FAIL;
1318 break;
1319
1320 }
1321
1322 if (ret == _FAIL) {
1323 #ifdef DBG_RX_DROP_FRAME
1324 DBG_871X("DBG_RX_DROP_FRAME %s case:%d, res:%d\n", __func__, pattrib->to_fr_ds, ret);
1325 #endif
1326 goto exit;
1327 } else if (ret == RTW_RX_HANDLED) {
1328 goto exit;
1329 }
1330
1331
1332 if (!psta) {
1333 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" after to_fr_ds_chk; psta == NULL\n"));
1334 #ifdef DBG_RX_DROP_FRAME
1335 DBG_871X("DBG_RX_DROP_FRAME %s psta == NULL\n", __func__);
1336 #endif
1337 ret = _FAIL;
1338 goto exit;
1339 }
1340
1341
1342
1343 precv_frame->u.hdr.psta = psta;
1344
1345
1346 pattrib->amsdu = 0;
1347 pattrib->ack_policy = 0;
1348
1349 if (pattrib->qos == 1) {
1350 pattrib->priority = GetPriority((ptr + 24));
1351 pattrib->ack_policy = GetAckpolicy((ptr + 24));
1352 pattrib->amsdu = GetAMsdu((ptr + 24));
1353 pattrib->hdrlen = pattrib->to_fr_ds == 3 ? 32 : 26;
1354
1355 if (pattrib->priority != 0 && pattrib->priority != 3)
1356 adapter->recvpriv.bIsAnyNonBEPkts = true;
1357
1358 } else {
1359 pattrib->priority = 0;
1360 pattrib->hdrlen = pattrib->to_fr_ds == 3 ? 30 : 24;
1361 }
1362
1363
1364 if (pattrib->order)
1365 pattrib->hdrlen += 4;
1366
1367 precv_frame->u.hdr.preorder_ctrl = &psta->recvreorder_ctrl[pattrib->priority];
1368
1369
1370 if (recv_decache(precv_frame, bretry, &psta->sta_recvpriv.rxcache) == _FAIL) {
1371 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("decache : drop pkt\n"));
1372 #ifdef DBG_RX_DROP_FRAME
1373 DBG_871X("DBG_RX_DROP_FRAME %s recv_decache return _FAIL\n", __func__);
1374 #endif
1375 ret = _FAIL;
1376 goto exit;
1377 }
1378
1379 if (pattrib->privacy) {
1380
1381 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("validate_recv_data_frame:pattrib->privacy =%x\n", pattrib->privacy));
1382 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)));
1383
1384 GET_ENCRY_ALGO(psecuritypriv, psta, pattrib->encrypt, IS_MCAST(pattrib->ra));
1385
1386 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n pattrib->encrypt =%d\n", pattrib->encrypt));
1387
1388 SET_ICE_IV_LEN(pattrib->iv_len, pattrib->icv_len, pattrib->encrypt);
1389 } else {
1390 pattrib->encrypt = 0;
1391 pattrib->iv_len = pattrib->icv_len = 0;
1392 }
1393
1394 exit:
1395 return ret;
1396 }
1397
1398 static sint validate_80211w_mgmt(struct adapter *adapter, union recv_frame *precv_frame)
1399 {
1400 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1401 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
1402 u8 *ptr = precv_frame->u.hdr.rx_data;
1403 u8 type;
1404 u8 subtype;
1405
1406 type = GetFrameType(ptr);
1407 subtype = GetFrameSubType(ptr);
1408
1409
1410 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) && check_fwstate(pmlmepriv, _FW_LINKED)
1411 && adapter->securitypriv.binstallBIPkey == true) {
1412
1413 if (pattrib->privacy && !(IS_MCAST(GetAddr1Ptr(ptr))) &&
1414 (subtype == WIFI_DEAUTH || subtype == WIFI_DISASSOC || subtype == WIFI_ACTION)) {
1415 u8 *ppp, *mgmt_DATA;
1416 u32 data_len = 0;
1417 ppp = GetAddr2Ptr(ptr);
1418
1419 pattrib->bdecrypted = 0;
1420 pattrib->encrypt = _AES_;
1421 pattrib->hdrlen = sizeof(struct ieee80211_hdr_3addr);
1422
1423 SET_ICE_IV_LEN(pattrib->iv_len, pattrib->icv_len, pattrib->encrypt);
1424 memcpy(pattrib->ra, GetAddr1Ptr(ptr), ETH_ALEN);
1425 memcpy(pattrib->ta, GetAddr2Ptr(ptr), ETH_ALEN);
1426
1427 data_len = pattrib->pkt_len - pattrib->hdrlen - pattrib->iv_len - pattrib->icv_len;
1428 mgmt_DATA = rtw_zmalloc(data_len);
1429 if (!mgmt_DATA) {
1430 DBG_871X("%s mgmt allocate fail !!!!!!!!!\n", __func__);
1431 goto validate_80211w_fail;
1432 }
1433 precv_frame = decryptor(adapter, precv_frame);
1434
1435 memcpy(mgmt_DATA, ptr+pattrib->hdrlen+pattrib->iv_len, data_len);
1436
1437 memcpy(ptr+pattrib->hdrlen, mgmt_DATA, data_len);
1438
1439 pattrib->pkt_len = pattrib->pkt_len - pattrib->iv_len - pattrib->icv_len;
1440 kfree(mgmt_DATA);
1441 if (!precv_frame) {
1442 DBG_871X("%s mgmt descrypt fail !!!!!!!!!\n", __func__);
1443 goto validate_80211w_fail;
1444 }
1445 } else if (IS_MCAST(GetAddr1Ptr(ptr)) &&
1446 (subtype == WIFI_DEAUTH || subtype == WIFI_DISASSOC)) {
1447 sint BIP_ret = _SUCCESS;
1448
1449 BIP_ret = rtw_BIP_verify(adapter, (u8 *)precv_frame);
1450 if (BIP_ret == _FAIL) {
1451
1452 goto validate_80211w_fail;
1453 } else if (BIP_ret == RTW_RX_HANDLED) {
1454
1455
1456 issue_action_SA_Query(adapter, NULL, 0, 0);
1457 goto validate_80211w_fail;
1458 }
1459 } else {
1460 if (subtype == WIFI_ACTION) {
1461
1462 if (ptr[WLAN_HDR_A3_LEN] != RTW_WLAN_CATEGORY_PUBLIC &&
1463 ptr[WLAN_HDR_A3_LEN] != RTW_WLAN_CATEGORY_HT &&
1464 ptr[WLAN_HDR_A3_LEN] != RTW_WLAN_CATEGORY_UNPROTECTED_WNM &&
1465 ptr[WLAN_HDR_A3_LEN] != RTW_WLAN_CATEGORY_SELF_PROTECTED &&
1466 ptr[WLAN_HDR_A3_LEN] != RTW_WLAN_CATEGORY_P2P) {
1467 DBG_871X("action frame category =%d should robust\n", ptr[WLAN_HDR_A3_LEN]);
1468 goto validate_80211w_fail;
1469 }
1470 } else if (subtype == WIFI_DEAUTH || subtype == WIFI_DISASSOC) {
1471 DBG_871X("802.11w recv none protected packet\n");
1472
1473 issue_action_SA_Query(adapter, NULL, 0, 0);
1474 goto validate_80211w_fail;
1475 }
1476 }
1477 }
1478 return _SUCCESS;
1479
1480 validate_80211w_fail:
1481 return _FAIL;
1482
1483 }
1484
1485 static inline void dump_rx_packet(u8 *ptr)
1486 {
1487 int i;
1488
1489 DBG_871X("#############################\n");
1490 for (i = 0; i < 64; i = i+8)
1491 DBG_871X("%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:\n", *(ptr+i),
1492 *(ptr+i+1), *(ptr+i+2), *(ptr+i+3), *(ptr+i+4), *(ptr+i+5), *(ptr+i+6), *(ptr+i+7));
1493 DBG_871X("#############################\n");
1494 }
1495
1496 sint validate_recv_frame(struct adapter *adapter, union recv_frame *precv_frame);
1497 sint validate_recv_frame(struct adapter *adapter, union recv_frame *precv_frame)
1498 {
1499
1500
1501
1502
1503 u8 type;
1504 u8 subtype;
1505 sint retval = _SUCCESS;
1506 u8 bDumpRxPkt;
1507
1508 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
1509
1510 u8 *ptr = precv_frame->u.hdr.rx_data;
1511 u8 ver = (unsigned char) (*ptr)&0x3;
1512
1513
1514 if (ver != 0) {
1515 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("validate_recv_data_frame fail! (ver!= 0)\n"));
1516 retval = _FAIL;
1517 DBG_COUNTER(adapter->rx_logs.core_rx_pre_ver_err);
1518 goto exit;
1519 }
1520
1521 type = GetFrameType(ptr);
1522 subtype = GetFrameSubType(ptr);
1523
1524 pattrib->to_fr_ds = get_tofr_ds(ptr);
1525
1526 pattrib->frag_num = GetFragNum(ptr);
1527 pattrib->seq_num = GetSequence(ptr);
1528
1529 pattrib->pw_save = GetPwrMgt(ptr);
1530 pattrib->mfrag = GetMFrag(ptr);
1531 pattrib->mdata = GetMData(ptr);
1532 pattrib->privacy = GetPrivacy(ptr);
1533 pattrib->order = GetOrder(ptr);
1534 rtw_hal_get_def_var(adapter, HAL_DEF_DBG_DUMP_RXPKT, &(bDumpRxPkt));
1535 if (bDumpRxPkt == 1)
1536 dump_rx_packet(ptr);
1537 else if ((bDumpRxPkt == 2) && (type == WIFI_MGT_TYPE))
1538 dump_rx_packet(ptr);
1539 else if ((bDumpRxPkt == 3) && (type == WIFI_DATA_TYPE))
1540 dump_rx_packet(ptr);
1541
1542 switch (type) {
1543 case WIFI_MGT_TYPE:
1544 DBG_COUNTER(adapter->rx_logs.core_rx_pre_mgmt);
1545 if (validate_80211w_mgmt(adapter, precv_frame) == _FAIL) {
1546 retval = _FAIL;
1547 DBG_COUNTER(padapter->rx_logs.core_rx_pre_mgmt_err_80211w);
1548 break;
1549 }
1550
1551 retval = validate_recv_mgnt_frame(adapter, precv_frame);
1552 if (retval == _FAIL) {
1553 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("validate_recv_mgnt_frame fail\n"));
1554 DBG_COUNTER(adapter->rx_logs.core_rx_pre_mgmt_err);
1555 }
1556 retval = _FAIL;
1557 break;
1558 case WIFI_CTRL_TYPE:
1559 DBG_COUNTER(adapter->rx_logs.core_rx_pre_ctrl);
1560 retval = validate_recv_ctrl_frame(adapter, precv_frame);
1561 if (retval == _FAIL) {
1562 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("validate_recv_ctrl_frame fail\n"));
1563 DBG_COUNTER(adapter->rx_logs.core_rx_pre_ctrl_err);
1564 }
1565 retval = _FAIL;
1566 break;
1567 case WIFI_DATA_TYPE:
1568 DBG_COUNTER(adapter->rx_logs.core_rx_pre_data);
1569
1570 pattrib->qos = (subtype & BIT(7)) ? 1:0;
1571 retval = validate_recv_data_frame(adapter, precv_frame);
1572 if (retval == _FAIL) {
1573 struct recv_priv *precvpriv = &adapter->recvpriv;
1574
1575 precvpriv->rx_drop++;
1576 DBG_COUNTER(adapter->rx_logs.core_rx_pre_data_err);
1577 } else if (retval == _SUCCESS) {
1578 #ifdef DBG_RX_DUMP_EAP
1579 u8 bDumpRxPkt;
1580 u16 eth_type;
1581
1582
1583 rtw_hal_get_def_var(adapter, HAL_DEF_DBG_DUMP_RXPKT, &(bDumpRxPkt));
1584
1585 memcpy(ð_type, ptr + pattrib->hdrlen + pattrib->iv_len + LLC_HEADER_SIZE, 2);
1586 eth_type = ntohs((unsigned short) eth_type);
1587 if ((bDumpRxPkt == 4) && (eth_type == 0x888e))
1588 dump_rx_packet(ptr);
1589 #endif
1590 } else
1591 DBG_COUNTER(adapter->rx_logs.core_rx_pre_data_handled);
1592 break;
1593 default:
1594 DBG_COUNTER(adapter->rx_logs.core_rx_pre_unknown);
1595 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("validate_recv_data_frame fail! type = 0x%x\n", type));
1596 #ifdef DBG_RX_DROP_FRAME
1597 DBG_871X("DBG_RX_DROP_FRAME validate_recv_data_frame fail! type = 0x%x\n", type);
1598 #endif
1599 retval = _FAIL;
1600 break;
1601 }
1602
1603 exit:
1604 return retval;
1605 }
1606
1607
1608
1609 sint wlanhdr_to_ethhdr(union recv_frame *precvframe);
1610 sint wlanhdr_to_ethhdr(union recv_frame *precvframe)
1611 {
1612 sint rmv_len;
1613 u16 eth_type, len;
1614 u8 bsnaphdr;
1615 u8 *psnap_type;
1616 struct ieee80211_snap_hdr *psnap;
1617 __be16 be_tmp;
1618 struct adapter *adapter = precvframe->u.hdr.adapter;
1619 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1620 u8 *ptr = get_recvframe_data(precvframe) ;
1621 struct rx_pkt_attrib *pattrib = &precvframe->u.hdr.attrib;
1622
1623 if (pattrib->encrypt) {
1624 recvframe_pull_tail(precvframe, pattrib->icv_len);
1625 }
1626
1627 psnap = (struct ieee80211_snap_hdr *)(ptr+pattrib->hdrlen + pattrib->iv_len);
1628 psnap_type = ptr+pattrib->hdrlen + pattrib->iv_len+SNAP_SIZE;
1629
1630
1631 if ((!memcmp(psnap, rtw_rfc1042_header, SNAP_SIZE) &&
1632 (memcmp(psnap_type, SNAP_ETH_TYPE_IPX, 2)) &&
1633 (memcmp(psnap_type, SNAP_ETH_TYPE_APPLETALK_AARP, 2))) ||
1634
1635 !memcmp(psnap, rtw_bridge_tunnel_header, SNAP_SIZE)) {
1636
1637 bsnaphdr = true;
1638 } else
1639
1640 bsnaphdr = false;
1641
1642 rmv_len = pattrib->hdrlen + pattrib->iv_len + (bsnaphdr?SNAP_SIZE:0);
1643 len = precvframe->u.hdr.len - rmv_len;
1644
1645 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n ===pattrib->hdrlen: %x, pattrib->iv_len:%x ===\n\n", pattrib->hdrlen, pattrib->iv_len));
1646
1647 memcpy(&be_tmp, ptr+rmv_len, 2);
1648 eth_type = ntohs(be_tmp);
1649 pattrib->eth_type = eth_type;
1650
1651 #ifdef CONFIG_AUTO_AP_MODE
1652 if (0x8899 == pattrib->eth_type) {
1653 struct sta_info *psta = precvframe->u.hdr.psta;
1654
1655 DBG_871X("wlan rx: got eth_type = 0x%x\n", pattrib->eth_type);
1656
1657 if (psta && psta->isrc && psta->pid > 0) {
1658 u16 rx_pid;
1659
1660 rx_pid = *(u16 *)(ptr+rmv_len+2);
1661
1662 DBG_871X("wlan rx(pid = 0x%x): sta("MAC_FMT") pid = 0x%x\n",
1663 rx_pid, MAC_ARG(psta->hwaddr), psta->pid);
1664
1665 if (rx_pid == psta->pid) {
1666 int i;
1667 u16 len = *(u16 *)(ptr+rmv_len+4);
1668
1669
1670
1671 DBG_871X("RC: len = 0x%x\n", len);
1672
1673 for (i = 0; i < len ; i++)
1674 DBG_871X("0x%x\n", *(ptr+rmv_len+6+i));
1675
1676
1677 DBG_871X("RC-end\n");
1678 }
1679 }
1680 }
1681 #endif
1682
1683 if ((check_fwstate(pmlmepriv, WIFI_MP_STATE) == true)) {
1684 ptr += rmv_len;
1685 *ptr = 0x87;
1686 *(ptr+1) = 0x12;
1687
1688 eth_type = 0x8712;
1689
1690 ptr = recvframe_pull(precvframe, (rmv_len-sizeof(struct ethhdr)+2)-24);
1691 memcpy(ptr, get_rxmem(precvframe), 24);
1692 ptr += 24;
1693 } else
1694 ptr = recvframe_pull(precvframe, (rmv_len-sizeof(struct ethhdr) + (bsnaphdr?2:0)));
1695
1696 memcpy(ptr, pattrib->dst, ETH_ALEN);
1697 memcpy(ptr+ETH_ALEN, pattrib->src, ETH_ALEN);
1698
1699 if (!bsnaphdr) {
1700 be_tmp = htons(len);
1701 memcpy(ptr+12, &be_tmp, 2);
1702 }
1703
1704 return _SUCCESS;
1705 }
1706
1707
1708 static union recv_frame *recvframe_defrag(struct adapter *adapter,
1709 struct __queue *defrag_q)
1710 {
1711 struct list_head *plist, *phead;
1712 u8 *data, wlanhdr_offset;
1713 u8 curfragnum;
1714 struct recv_frame_hdr *pfhdr, *pnfhdr;
1715 union recv_frame *prframe, *pnextrframe;
1716 struct __queue *pfree_recv_queue;
1717
1718 curfragnum = 0;
1719 pfree_recv_queue = &adapter->recvpriv.free_recv_queue;
1720
1721 phead = get_list_head(defrag_q);
1722 plist = get_next(phead);
1723 prframe = (union recv_frame *)plist;
1724 pfhdr = &prframe->u.hdr;
1725 list_del_init(&(prframe->u.list));
1726
1727 if (curfragnum != pfhdr->attrib.frag_num) {
1728
1729
1730 rtw_free_recvframe(prframe, pfree_recv_queue);
1731 rtw_free_recvframe_queue(defrag_q, pfree_recv_queue);
1732
1733 return NULL;
1734 }
1735
1736 curfragnum++;
1737
1738 plist = get_list_head(defrag_q);
1739
1740 plist = get_next(plist);
1741
1742 data = get_recvframe_data(prframe);
1743
1744 while (phead != plist) {
1745 pnextrframe = (union recv_frame *)plist;
1746 pnfhdr = &pnextrframe->u.hdr;
1747
1748
1749
1750
1751 if (curfragnum != pnfhdr->attrib.frag_num) {
1752
1753
1754 rtw_free_recvframe(prframe, pfree_recv_queue);
1755 rtw_free_recvframe_queue(defrag_q, pfree_recv_queue);
1756 return NULL;
1757 }
1758
1759 curfragnum++;
1760
1761
1762
1763
1764 wlanhdr_offset = pnfhdr->attrib.hdrlen + pnfhdr->attrib.iv_len;
1765
1766 recvframe_pull(pnextrframe, wlanhdr_offset);
1767
1768
1769 recvframe_pull_tail(prframe, pfhdr->attrib.icv_len);
1770
1771
1772 memcpy(pfhdr->rx_tail, pnfhdr->rx_data, pnfhdr->len);
1773
1774 recvframe_put(prframe, pnfhdr->len);
1775
1776 pfhdr->attrib.icv_len = pnfhdr->attrib.icv_len;
1777 plist = get_next(plist);
1778
1779 }
1780
1781
1782 rtw_free_recvframe_queue(defrag_q, pfree_recv_queue);
1783
1784 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("Performance defrag!!!!!\n"));
1785
1786 return prframe;
1787 }
1788
1789
1790 union recv_frame *recvframe_chk_defrag(struct adapter *padapter, union recv_frame *precv_frame)
1791 {
1792 u8 ismfrag;
1793 u8 fragnum;
1794 u8 *psta_addr;
1795 struct recv_frame_hdr *pfhdr;
1796 struct sta_info *psta;
1797 struct sta_priv *pstapriv;
1798 struct list_head *phead;
1799 union recv_frame *prtnframe = NULL;
1800 struct __queue *pfree_recv_queue, *pdefrag_q;
1801
1802 pstapriv = &padapter->stapriv;
1803
1804 pfhdr = &precv_frame->u.hdr;
1805
1806 pfree_recv_queue = &padapter->recvpriv.free_recv_queue;
1807
1808
1809 ismfrag = pfhdr->attrib.mfrag;
1810 fragnum = pfhdr->attrib.frag_num;
1811
1812 psta_addr = pfhdr->attrib.ta;
1813 psta = rtw_get_stainfo(pstapriv, psta_addr);
1814 if (!psta) {
1815 u8 type = GetFrameType(pfhdr->rx_data);
1816 if (type != WIFI_DATA_TYPE) {
1817 psta = rtw_get_bcmc_stainfo(padapter);
1818 pdefrag_q = &psta->sta_recvpriv.defrag_q;
1819 } else
1820 pdefrag_q = NULL;
1821 } else
1822 pdefrag_q = &psta->sta_recvpriv.defrag_q;
1823
1824 if ((ismfrag == 0) && (fragnum == 0))
1825 prtnframe = precv_frame;
1826
1827 if (ismfrag == 1) {
1828
1829
1830 if (pdefrag_q) {
1831 if (fragnum == 0)
1832
1833 if (!list_empty(&pdefrag_q->queue))
1834
1835 rtw_free_recvframe_queue(pdefrag_q, pfree_recv_queue);
1836
1837
1838
1839
1840
1841 phead = get_list_head(pdefrag_q);
1842 list_add_tail(&pfhdr->list, phead);
1843
1844
1845 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("Enqueuq: ismfrag = %d, fragnum = %d\n", ismfrag, fragnum));
1846
1847 prtnframe = NULL;
1848
1849 } else {
1850
1851 rtw_free_recvframe(precv_frame, pfree_recv_queue);
1852 prtnframe = NULL;
1853 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("Free because pdefrag_q == NULL: ismfrag = %d, fragnum = %d\n", ismfrag, fragnum));
1854 }
1855
1856 }
1857
1858 if ((ismfrag == 0) && (fragnum != 0)) {
1859
1860
1861 if (pdefrag_q) {
1862
1863 phead = get_list_head(pdefrag_q);
1864 list_add_tail(&pfhdr->list, phead);
1865
1866
1867
1868 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("defrag: ismfrag = %d, fragnum = %d\n", ismfrag, fragnum));
1869 precv_frame = recvframe_defrag(padapter, pdefrag_q);
1870 prtnframe = precv_frame;
1871
1872 } else {
1873
1874 rtw_free_recvframe(precv_frame, pfree_recv_queue);
1875 prtnframe = NULL;
1876 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("Free because pdefrag_q == NULL: ismfrag = %d, fragnum = %d\n", ismfrag, fragnum));
1877 }
1878
1879 }
1880
1881
1882 if ((prtnframe) && (prtnframe->u.hdr.attrib.privacy)) {
1883
1884 if (recvframe_chkmic(padapter, prtnframe) == _FAIL) {
1885 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvframe_chkmic(padapter, prtnframe) == _FAIL\n"));
1886 rtw_free_recvframe(prtnframe, pfree_recv_queue);
1887 prtnframe = NULL;
1888 }
1889 }
1890 return prtnframe;
1891 }
1892
1893 static int amsdu_to_msdu(struct adapter *padapter, union recv_frame *prframe)
1894 {
1895 int a_len, padding_len;
1896 u16 nSubframe_Length;
1897 u8 nr_subframes, i;
1898 u8 *pdata;
1899 _pkt *sub_pkt, *subframes[MAX_SUBFRAME_COUNT];
1900 struct recv_priv *precvpriv = &padapter->recvpriv;
1901 struct __queue *pfree_recv_queue = &(precvpriv->free_recv_queue);
1902
1903 nr_subframes = 0;
1904
1905 recvframe_pull(prframe, prframe->u.hdr.attrib.hdrlen);
1906
1907 if (prframe->u.hdr.attrib.iv_len > 0)
1908 recvframe_pull(prframe, prframe->u.hdr.attrib.iv_len);
1909
1910 a_len = prframe->u.hdr.len;
1911
1912 pdata = prframe->u.hdr.rx_data;
1913
1914 while (a_len > ETH_HLEN) {
1915
1916
1917 nSubframe_Length = RTW_GET_BE16(pdata + 12);
1918
1919 if (a_len < (ETHERNET_HEADER_SIZE + nSubframe_Length)) {
1920 DBG_871X("nRemain_Length is %d and nSubframe_Length is : %d\n", a_len, nSubframe_Length);
1921 break;
1922 }
1923
1924 sub_pkt = rtw_os_alloc_msdu_pkt(prframe, nSubframe_Length, pdata);
1925 if (!sub_pkt) {
1926 DBG_871X("%s(): allocate sub packet fail !!!\n", __func__);
1927 break;
1928 }
1929
1930
1931 pdata += ETH_HLEN;
1932 a_len -= ETH_HLEN;
1933
1934 subframes[nr_subframes++] = sub_pkt;
1935
1936 if (nr_subframes >= MAX_SUBFRAME_COUNT) {
1937 DBG_871X("ParseSubframe(): Too many Subframes! Packets dropped!\n");
1938 break;
1939 }
1940
1941 pdata += nSubframe_Length;
1942 a_len -= nSubframe_Length;
1943 if (a_len != 0) {
1944 padding_len = 4 - ((nSubframe_Length + ETH_HLEN) & (4-1));
1945 if (padding_len == 4) {
1946 padding_len = 0;
1947 }
1948
1949 if (a_len < padding_len) {
1950 DBG_871X("ParseSubframe(): a_len < padding_len !\n");
1951 break;
1952 }
1953 pdata += padding_len;
1954 a_len -= padding_len;
1955 }
1956 }
1957
1958 for (i = 0; i < nr_subframes; i++) {
1959 sub_pkt = subframes[i];
1960
1961
1962 if (sub_pkt) {
1963 rtw_os_recv_indicate_pkt(padapter, sub_pkt, &prframe->u.hdr.attrib);
1964 }
1965 }
1966
1967 prframe->u.hdr.len = 0;
1968 rtw_free_recvframe(prframe, pfree_recv_queue);
1969
1970 return _SUCCESS;
1971 }
1972
1973 int check_indicate_seq(struct recv_reorder_ctrl *preorder_ctrl, u16 seq_num);
1974 int check_indicate_seq(struct recv_reorder_ctrl *preorder_ctrl, u16 seq_num)
1975 {
1976 struct adapter *padapter = preorder_ctrl->padapter;
1977 struct dvobj_priv *psdpriv = padapter->dvobj;
1978 struct debug_priv *pdbgpriv = &psdpriv->drv_dbg;
1979 u8 wsize = preorder_ctrl->wsize_b;
1980 u16 wend = (preorder_ctrl->indicate_seq + wsize - 1) & 0xFFF;
1981
1982
1983 if (preorder_ctrl->indicate_seq == 0xFFFF) {
1984 preorder_ctrl->indicate_seq = seq_num;
1985 #ifdef DBG_RX_SEQ
1986 DBG_871X("DBG_RX_SEQ %s:%d init IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
1987 preorder_ctrl->indicate_seq, seq_num);
1988 #endif
1989
1990
1991 }
1992
1993
1994
1995
1996 if (SN_LESS(seq_num, preorder_ctrl->indicate_seq)) {
1997
1998
1999
2000 #ifdef DBG_RX_DROP_FRAME
2001 DBG_871X("%s IndicateSeq: %d > NewSeq: %d\n", __func__,
2002 preorder_ctrl->indicate_seq, seq_num);
2003 #endif
2004
2005
2006 return false;
2007 }
2008
2009
2010
2011
2012
2013
2014 if (SN_EQUAL(seq_num, preorder_ctrl->indicate_seq)) {
2015 preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1) & 0xFFF;
2016
2017 #ifdef DBG_RX_SEQ
2018 DBG_871X("DBG_RX_SEQ %s:%d SN_EQUAL IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2019 preorder_ctrl->indicate_seq, seq_num);
2020 #endif
2021 } else if (SN_LESS(wend, seq_num)) {
2022
2023
2024
2025
2026 if (seq_num >= (wsize - 1))
2027 preorder_ctrl->indicate_seq = seq_num + 1 - wsize;
2028 else
2029 preorder_ctrl->indicate_seq = 0xFFF - (wsize - (seq_num + 1)) + 1;
2030 pdbgpriv->dbg_rx_ampdu_window_shift_cnt++;
2031 #ifdef DBG_RX_SEQ
2032 DBG_871X("DBG_RX_SEQ %s:%d SN_LESS(wend, seq_num) IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2033 preorder_ctrl->indicate_seq, seq_num);
2034 #endif
2035 }
2036
2037
2038
2039 return true;
2040 }
2041
2042 int enqueue_reorder_recvframe(struct recv_reorder_ctrl *preorder_ctrl, union recv_frame *prframe);
2043 int enqueue_reorder_recvframe(struct recv_reorder_ctrl *preorder_ctrl, union recv_frame *prframe)
2044 {
2045 struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib;
2046 struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
2047 struct list_head *phead, *plist;
2048 union recv_frame *pnextrframe;
2049 struct rx_pkt_attrib *pnextattrib;
2050
2051
2052
2053
2054
2055
2056
2057 phead = get_list_head(ppending_recvframe_queue);
2058 plist = get_next(phead);
2059
2060 while (phead != plist) {
2061 pnextrframe = (union recv_frame *)plist;
2062 pnextattrib = &pnextrframe->u.hdr.attrib;
2063
2064 if (SN_LESS(pnextattrib->seq_num, pattrib->seq_num))
2065 plist = get_next(plist);
2066 else if (SN_EQUAL(pnextattrib->seq_num, pattrib->seq_num))
2067
2068
2069
2070 return false;
2071 else
2072 break;
2073
2074
2075
2076 }
2077
2078
2079
2080
2081
2082 list_del_init(&(prframe->u.hdr.list));
2083
2084 list_add_tail(&(prframe->u.hdr.list), plist);
2085
2086
2087
2088
2089
2090
2091 return true;
2092
2093 }
2094
2095 void recv_indicatepkts_pkt_loss_cnt(struct debug_priv *pdbgpriv, u64 prev_seq, u64 current_seq);
2096 void recv_indicatepkts_pkt_loss_cnt(struct debug_priv *pdbgpriv, u64 prev_seq, u64 current_seq)
2097 {
2098 if (current_seq < prev_seq)
2099 pdbgpriv->dbg_rx_ampdu_loss_count += (4096 + current_seq - prev_seq);
2100 else
2101 pdbgpriv->dbg_rx_ampdu_loss_count += (current_seq - prev_seq);
2102
2103 }
2104 int recv_indicatepkts_in_order(struct adapter *padapter, struct recv_reorder_ctrl *preorder_ctrl, int bforced);
2105 int recv_indicatepkts_in_order(struct adapter *padapter, struct recv_reorder_ctrl *preorder_ctrl, int bforced)
2106 {
2107 struct list_head *phead, *plist;
2108 union recv_frame *prframe;
2109 struct rx_pkt_attrib *pattrib;
2110
2111 int bPktInBuf = false;
2112 struct recv_priv *precvpriv = &padapter->recvpriv;
2113 struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
2114 struct dvobj_priv *psdpriv = padapter->dvobj;
2115 struct debug_priv *pdbgpriv = &psdpriv->drv_dbg;
2116
2117 DBG_COUNTER(padapter->rx_logs.core_rx_post_indicate_in_oder);
2118
2119
2120
2121
2122
2123
2124 phead = get_list_head(ppending_recvframe_queue);
2125 plist = get_next(phead);
2126
2127
2128 if (bforced == true) {
2129 pdbgpriv->dbg_rx_ampdu_forced_indicate_count++;
2130 if (list_empty(phead)) {
2131
2132
2133 return true;
2134 }
2135
2136 prframe = (union recv_frame *)plist;
2137 pattrib = &prframe->u.hdr.attrib;
2138
2139 #ifdef DBG_RX_SEQ
2140 DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2141 preorder_ctrl->indicate_seq, pattrib->seq_num);
2142 #endif
2143 recv_indicatepkts_pkt_loss_cnt(pdbgpriv, preorder_ctrl->indicate_seq, pattrib->seq_num);
2144 preorder_ctrl->indicate_seq = pattrib->seq_num;
2145
2146 }
2147
2148
2149
2150 while (!list_empty(phead)) {
2151
2152 prframe = (union recv_frame *)plist;
2153 pattrib = &prframe->u.hdr.attrib;
2154
2155 if (!SN_LESS(preorder_ctrl->indicate_seq, pattrib->seq_num)) {
2156 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
2157 ("recv_indicatepkts_in_order: indicate =%d seq =%d amsdu =%d\n",
2158 preorder_ctrl->indicate_seq, pattrib->seq_num, pattrib->amsdu));
2159
2160 plist = get_next(plist);
2161 list_del_init(&(prframe->u.hdr.list));
2162
2163 if (SN_EQUAL(preorder_ctrl->indicate_seq, pattrib->seq_num)) {
2164 preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1) & 0xFFF;
2165 #ifdef DBG_RX_SEQ
2166 DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2167 preorder_ctrl->indicate_seq, pattrib->seq_num);
2168 #endif
2169 }
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180 if (!pattrib->amsdu) {
2181
2182
2183 if ((padapter->bDriverStopped == false) &&
2184 (padapter->bSurpriseRemoved == false))
2185 rtw_recv_indicatepkt(padapter, prframe);
2186
2187 } else if (pattrib->amsdu == 1) {
2188 if (amsdu_to_msdu(padapter, prframe) != _SUCCESS)
2189 rtw_free_recvframe(prframe, &precvpriv->free_recv_queue);
2190
2191 } else {
2192
2193 }
2194
2195
2196
2197 bPktInBuf = false;
2198
2199 } else {
2200 bPktInBuf = true;
2201 break;
2202 }
2203
2204
2205
2206 }
2207
2208
2209
2210
2211 return bPktInBuf;
2212 }
2213
2214 int recv_indicatepkt_reorder(struct adapter *padapter, union recv_frame *prframe);
2215 int recv_indicatepkt_reorder(struct adapter *padapter, union recv_frame *prframe)
2216 {
2217 int retval = _SUCCESS;
2218 struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib;
2219 struct recv_reorder_ctrl *preorder_ctrl = prframe->u.hdr.preorder_ctrl;
2220 struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
2221 struct dvobj_priv *psdpriv = padapter->dvobj;
2222 struct debug_priv *pdbgpriv = &psdpriv->drv_dbg;
2223
2224 DBG_COUNTER(padapter->rx_logs.core_rx_post_indicate_reoder);
2225
2226 if (!pattrib->amsdu) {
2227
2228 wlanhdr_to_ethhdr(prframe);
2229
2230 if (pattrib->qos != 1) {
2231 if ((padapter->bDriverStopped == false) &&
2232 (padapter->bSurpriseRemoved == false)) {
2233 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("@@@@ recv_indicatepkt_reorder -recv_func recv_indicatepkt\n"));
2234
2235 rtw_recv_indicatepkt(padapter, prframe);
2236 return _SUCCESS;
2237
2238 }
2239
2240 #ifdef DBG_RX_DROP_FRAME
2241 DBG_871X("DBG_RX_DROP_FRAME %s pattrib->qos != 1\n", __func__);
2242 #endif
2243
2244 return _FAIL;
2245
2246 }
2247
2248 if (preorder_ctrl->enable == false) {
2249
2250 preorder_ctrl->indicate_seq = pattrib->seq_num;
2251 #ifdef DBG_RX_SEQ
2252 DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2253 preorder_ctrl->indicate_seq, pattrib->seq_num);
2254 #endif
2255
2256 rtw_recv_indicatepkt(padapter, prframe);
2257
2258 preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1)%4096;
2259 #ifdef DBG_RX_SEQ
2260 DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2261 preorder_ctrl->indicate_seq, pattrib->seq_num);
2262 #endif
2263
2264 return _SUCCESS;
2265 }
2266 } else if (pattrib->amsdu == 1) {
2267 if (preorder_ctrl->enable == false) {
2268 preorder_ctrl->indicate_seq = pattrib->seq_num;
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 retval = amsdu_to_msdu(padapter, prframe);
2275
2276 preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1)%4096;
2277 #ifdef DBG_RX_SEQ
2278 DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2279 preorder_ctrl->indicate_seq, pattrib->seq_num);
2280 #endif
2281
2282 if (retval != _SUCCESS) {
2283 #ifdef DBG_RX_DROP_FRAME
2284 DBG_871X("DBG_RX_DROP_FRAME %s amsdu_to_msdu fail\n", __func__);
2285 #endif
2286 }
2287
2288 return retval;
2289 }
2290 }
2291
2292 spin_lock_bh(&ppending_recvframe_queue->lock);
2293
2294 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
2295 ("recv_indicatepkt_reorder: indicate =%d seq =%d\n",
2296 preorder_ctrl->indicate_seq, pattrib->seq_num));
2297
2298
2299 if (!check_indicate_seq(preorder_ctrl, pattrib->seq_num)) {
2300 pdbgpriv->dbg_rx_ampdu_drop_count++;
2301 #ifdef DBG_RX_DROP_FRAME
2302 DBG_871X("DBG_RX_DROP_FRAME %s check_indicate_seq fail\n", __func__);
2303 #endif
2304 goto _err_exit;
2305 }
2306
2307
2308
2309 if (!enqueue_reorder_recvframe(preorder_ctrl, prframe)) {
2310
2311
2312
2313 #ifdef DBG_RX_DROP_FRAME
2314 DBG_871X("DBG_RX_DROP_FRAME %s enqueue_reorder_recvframe fail\n", __func__);
2315 #endif
2316 goto _err_exit;
2317 }
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331 if (recv_indicatepkts_in_order(padapter, preorder_ctrl, false) == true) {
2332 _set_timer(&preorder_ctrl->reordering_ctrl_timer, REORDER_WAIT_TIME);
2333 spin_unlock_bh(&ppending_recvframe_queue->lock);
2334 } else {
2335 spin_unlock_bh(&ppending_recvframe_queue->lock);
2336 del_timer_sync(&preorder_ctrl->reordering_ctrl_timer);
2337 }
2338
2339 return _SUCCESS;
2340
2341 _err_exit:
2342 spin_unlock_bh(&ppending_recvframe_queue->lock);
2343
2344 return _FAIL;
2345 }
2346
2347
2348 void rtw_reordering_ctrl_timeout_handler(struct timer_list *t)
2349 {
2350 struct recv_reorder_ctrl *preorder_ctrl =
2351 from_timer(preorder_ctrl, t, reordering_ctrl_timer);
2352 struct adapter *padapter = preorder_ctrl->padapter;
2353 struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
2354
2355
2356 if (padapter->bDriverStopped || padapter->bSurpriseRemoved)
2357 return;
2358
2359
2360
2361 spin_lock_bh(&ppending_recvframe_queue->lock);
2362
2363 if (recv_indicatepkts_in_order(padapter, preorder_ctrl, true) == true)
2364 _set_timer(&preorder_ctrl->reordering_ctrl_timer, REORDER_WAIT_TIME);
2365
2366 spin_unlock_bh(&ppending_recvframe_queue->lock);
2367
2368 }
2369
2370 int process_recv_indicatepkts(struct adapter *padapter, union recv_frame *prframe);
2371 int process_recv_indicatepkts(struct adapter *padapter, union recv_frame *prframe)
2372 {
2373 int retval = _SUCCESS;
2374
2375
2376 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2377 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
2378
2379 DBG_COUNTER(padapter->rx_logs.core_rx_post_indicate);
2380
2381 if (phtpriv->ht_option == true) {
2382
2383
2384 if (recv_indicatepkt_reorder(padapter, prframe) != _SUCCESS) {
2385 #ifdef DBG_RX_DROP_FRAME
2386 DBG_871X("DBG_RX_DROP_FRAME %s recv_indicatepkt_reorder error!\n", __func__);
2387 #endif
2388
2389 if ((padapter->bDriverStopped == false) &&
2390 (padapter->bSurpriseRemoved == false)) {
2391 retval = _FAIL;
2392 return retval;
2393 }
2394 }
2395 } else {
2396 retval = wlanhdr_to_ethhdr(prframe);
2397 if (retval != _SUCCESS) {
2398 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("wlanhdr_to_ethhdr: drop pkt\n"));
2399 #ifdef DBG_RX_DROP_FRAME
2400 DBG_871X("DBG_RX_DROP_FRAME %s wlanhdr_to_ethhdr error!\n", __func__);
2401 #endif
2402 return retval;
2403 }
2404
2405 if ((padapter->bDriverStopped == false) && (padapter->bSurpriseRemoved == false)) {
2406
2407 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("@@@@ process_recv_indicatepkts- recv_func recv_indicatepkt\n"));
2408 rtw_recv_indicatepkt(padapter, prframe);
2409
2410
2411 } else {
2412 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("@@@@ process_recv_indicatepkts- recv_func free_indicatepkt\n"));
2413
2414 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("recv_func:bDriverStopped(%d) OR bSurpriseRemoved(%d)", padapter->bDriverStopped, padapter->bSurpriseRemoved));
2415 retval = _FAIL;
2416 return retval;
2417 }
2418
2419 }
2420
2421 return retval;
2422
2423 }
2424
2425 static int recv_func_prehandle(struct adapter *padapter, union recv_frame *rframe)
2426 {
2427 int ret = _SUCCESS;
2428 struct __queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue;
2429
2430 DBG_COUNTER(padapter->rx_logs.core_rx_pre);
2431
2432
2433 ret = validate_recv_frame(padapter, rframe);
2434 if (ret != _SUCCESS) {
2435 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("recv_func: validate_recv_frame fail! drop pkt\n"));
2436 rtw_free_recvframe(rframe, pfree_recv_queue);
2437 goto exit;
2438 }
2439
2440 exit:
2441 return ret;
2442 }
2443
2444 static int recv_func_posthandle(struct adapter *padapter, union recv_frame *prframe)
2445 {
2446 int ret = _SUCCESS;
2447 union recv_frame *orig_prframe = prframe;
2448 struct recv_priv *precvpriv = &padapter->recvpriv;
2449 struct __queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue;
2450
2451 DBG_COUNTER(padapter->rx_logs.core_rx_post);
2452
2453 prframe = decryptor(padapter, prframe);
2454 if (!prframe) {
2455 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("decryptor: drop pkt\n"));
2456 #ifdef DBG_RX_DROP_FRAME
2457 DBG_871X("DBG_RX_DROP_FRAME %s decryptor: drop pkt\n", __func__);
2458 #endif
2459 ret = _FAIL;
2460 DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_err);
2461 goto _recv_data_drop;
2462 }
2463
2464 prframe = recvframe_chk_defrag(padapter, prframe);
2465 if (!prframe) {
2466 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvframe_chk_defrag: drop pkt\n"));
2467 #ifdef DBG_RX_DROP_FRAME
2468 DBG_871X("DBG_RX_DROP_FRAME %s recvframe_chk_defrag: drop pkt\n", __func__);
2469 #endif
2470 DBG_COUNTER(padapter->rx_logs.core_rx_post_defrag_err);
2471 goto _recv_data_drop;
2472 }
2473
2474 prframe = portctrl(padapter, prframe);
2475 if (!prframe) {
2476 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("portctrl: drop pkt\n"));
2477 #ifdef DBG_RX_DROP_FRAME
2478 DBG_871X("DBG_RX_DROP_FRAME %s portctrl: drop pkt\n", __func__);
2479 #endif
2480 ret = _FAIL;
2481 DBG_COUNTER(padapter->rx_logs.core_rx_post_portctrl_err);
2482 goto _recv_data_drop;
2483 }
2484
2485 count_rx_stats(padapter, prframe, NULL);
2486
2487 ret = process_recv_indicatepkts(padapter, prframe);
2488 if (ret != _SUCCESS) {
2489 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recv_func: process_recv_indicatepkts fail!\n"));
2490 #ifdef DBG_RX_DROP_FRAME
2491 DBG_871X("DBG_RX_DROP_FRAME %s process_recv_indicatepkts fail!\n", __func__);
2492 #endif
2493 rtw_free_recvframe(orig_prframe, pfree_recv_queue);
2494 DBG_COUNTER(padapter->rx_logs.core_rx_post_indicate_err);
2495 goto _recv_data_drop;
2496 }
2497
2498 _recv_data_drop:
2499 precvpriv->rx_drop++;
2500 return ret;
2501 }
2502
2503
2504 int recv_func(struct adapter *padapter, union recv_frame *rframe);
2505 int recv_func(struct adapter *padapter, union recv_frame *rframe)
2506 {
2507 int ret;
2508 struct rx_pkt_attrib *prxattrib = &rframe->u.hdr.attrib;
2509 struct recv_priv *recvpriv = &padapter->recvpriv;
2510 struct security_priv *psecuritypriv = &padapter->securitypriv;
2511 struct mlme_priv *mlmepriv = &padapter->mlmepriv;
2512
2513
2514 if (check_fwstate(mlmepriv, WIFI_STATION_STATE) && psecuritypriv->busetkipkey) {
2515 union recv_frame *pending_frame;
2516 int cnt = 0;
2517
2518 while ((pending_frame = rtw_alloc_recvframe(&padapter->recvpriv.uc_swdec_pending_queue))) {
2519 cnt++;
2520 DBG_COUNTER(padapter->rx_logs.core_rx_dequeue);
2521 recv_func_posthandle(padapter, pending_frame);
2522 }
2523
2524 if (cnt)
2525 DBG_871X(FUNC_ADPT_FMT" dequeue %d from uc_swdec_pending_queue\n",
2526 FUNC_ADPT_ARG(padapter), cnt);
2527 }
2528
2529 DBG_COUNTER(padapter->rx_logs.core_rx);
2530 ret = recv_func_prehandle(padapter, rframe);
2531
2532 if (ret == _SUCCESS) {
2533
2534
2535 if (check_fwstate(mlmepriv, WIFI_STATION_STATE) &&
2536 !IS_MCAST(prxattrib->ra) && prxattrib->encrypt > 0 &&
2537 (prxattrib->bdecrypted == 0 || psecuritypriv->sw_decrypt == true) &&
2538 psecuritypriv->ndisauthtype == Ndis802_11AuthModeWPAPSK &&
2539 !psecuritypriv->busetkipkey) {
2540 DBG_COUNTER(padapter->rx_logs.core_rx_enqueue);
2541 rtw_enqueue_recvframe(rframe, &padapter->recvpriv.uc_swdec_pending_queue);
2542
2543
2544 if (recvpriv->free_recvframe_cnt < NR_RECVFRAME/4) {
2545
2546 rframe = rtw_alloc_recvframe(&padapter->recvpriv.uc_swdec_pending_queue);
2547 if (rframe)
2548 goto do_posthandle;
2549 }
2550 goto exit;
2551 }
2552
2553 do_posthandle:
2554 ret = recv_func_posthandle(padapter, rframe);
2555 }
2556
2557 exit:
2558 return ret;
2559 }
2560
2561
2562 s32 rtw_recv_entry(union recv_frame *precvframe)
2563 {
2564 struct adapter *padapter;
2565 struct recv_priv *precvpriv;
2566 s32 ret = _SUCCESS;
2567
2568
2569
2570 padapter = precvframe->u.hdr.adapter;
2571
2572 precvpriv = &padapter->recvpriv;
2573
2574 ret = recv_func(padapter, precvframe);
2575 if (ret == _FAIL) {
2576 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("rtw_recv_entry: recv_func return fail!!!\n"));
2577 goto _recv_entry_drop;
2578 }
2579
2580
2581 precvpriv->rx_pkts++;
2582
2583 return ret;
2584
2585 _recv_entry_drop:
2586
2587
2588
2589 return ret;
2590 }
2591
2592 static void rtw_signal_stat_timer_hdl(struct timer_list *t)
2593 {
2594 struct adapter *adapter =
2595 from_timer(adapter, t, recvpriv.signal_stat_timer);
2596 struct recv_priv *recvpriv = &adapter->recvpriv;
2597
2598 u32 tmp_s, tmp_q;
2599 u8 avg_signal_strength = 0;
2600 u8 avg_signal_qual = 0;
2601 u32 num_signal_strength = 0;
2602 u32 num_signal_qual = 0;
2603 u8 _alpha = 5;
2604
2605 if (adapter->recvpriv.is_signal_dbg) {
2606
2607 adapter->recvpriv.signal_strength = adapter->recvpriv.signal_strength_dbg;
2608 adapter->recvpriv.rssi = (s8)translate_percentage_to_dbm((u8)adapter->recvpriv.signal_strength_dbg);
2609 } else {
2610
2611 if (recvpriv->signal_strength_data.update_req == 0) {
2612 avg_signal_strength = recvpriv->signal_strength_data.avg_val;
2613 num_signal_strength = recvpriv->signal_strength_data.total_num;
2614
2615 recvpriv->signal_strength_data.update_req = 1;
2616 }
2617
2618 if (recvpriv->signal_qual_data.update_req == 0) {
2619 avg_signal_qual = recvpriv->signal_qual_data.avg_val;
2620 num_signal_qual = recvpriv->signal_qual_data.total_num;
2621
2622 recvpriv->signal_qual_data.update_req = 1;
2623 }
2624
2625 if (num_signal_strength == 0) {
2626 if (rtw_get_on_cur_ch_time(adapter) == 0
2627 || jiffies_to_msecs(jiffies - rtw_get_on_cur_ch_time(adapter)) < 2 * adapter->mlmeextpriv.mlmext_info.bcn_interval
2628 ) {
2629 goto set_timer;
2630 }
2631 }
2632
2633 if (check_fwstate(&adapter->mlmepriv, _FW_UNDER_SURVEY) == true
2634 || check_fwstate(&adapter->mlmepriv, _FW_LINKED) == false
2635 ) {
2636 goto set_timer;
2637 }
2638
2639
2640 tmp_s = (avg_signal_strength+(_alpha-1)*recvpriv->signal_strength);
2641 if (tmp_s % _alpha)
2642 tmp_s = tmp_s/_alpha + 1;
2643 else
2644 tmp_s = tmp_s/_alpha;
2645 if (tmp_s > 100)
2646 tmp_s = 100;
2647
2648 tmp_q = (avg_signal_qual+(_alpha-1)*recvpriv->signal_qual);
2649 if (tmp_q % _alpha)
2650 tmp_q = tmp_q/_alpha + 1;
2651 else
2652 tmp_q = tmp_q/_alpha;
2653 if (tmp_q > 100)
2654 tmp_q = 100;
2655
2656 recvpriv->signal_strength = tmp_s;
2657 recvpriv->rssi = (s8)translate_percentage_to_dbm(tmp_s);
2658 recvpriv->signal_qual = tmp_q;
2659
2660 #if defined(DBG_RX_SIGNAL_DISPLAY_PROCESSING) && 1
2661 DBG_871X(FUNC_ADPT_FMT" signal_strength:%3u, rssi:%3d, signal_qual:%3u"
2662 ", num_signal_strength:%u, num_signal_qual:%u"
2663 ", on_cur_ch_ms:%d"
2664 "\n"
2665 , FUNC_ADPT_ARG(adapter)
2666 , recvpriv->signal_strength
2667 , recvpriv->rssi
2668 , recvpriv->signal_qual
2669 , num_signal_strength, num_signal_qual
2670 , rtw_get_on_cur_ch_time(adapter) ? jiffies_to_msecs(jiffies - rtw_get_on_cur_ch_time(adapter)) : 0
2671 );
2672 #endif
2673 }
2674
2675 set_timer:
2676 rtw_set_signal_stat_timer(recvpriv);
2677
2678 }